| /* |
| * fs/cifs/cifssmb.c |
| * |
| * Copyright (c) International Business Machines Corp., 2002 |
| * Author(s): Steve French (sfrench@us.ibm.com) |
| * |
| * Contains the routines for constructing the SMB PDUs themselves |
| * |
| * This library is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU Lesser General Public License as published |
| * by the Free Software Foundation; either version 2.1 of the License, or |
| * (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| * the GNU Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public License |
| * along with this library; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| /* SMB/CIFS PDU handling routines here - except for leftovers in connect.c */ |
| |
| #include <linux/fs.h> |
| #include <linux/kernel.h> |
| #include <linux/vfs.h> |
| #include <asm/uaccess.h> |
| #include "cifspdu.h" |
| #include "cifsglob.h" |
| #include "cifsproto.h" |
| #include "cifs_unicode.h" |
| #include "cifs_debug.h" |
| |
| static struct { |
| int index; |
| char *name; |
| } protocols[] = { |
| { |
| CIFS_PROT, "\2NT LM 0.12"}, { |
| BAD_PROT, "\2"} |
| }; |
| |
| int |
| smb_init(int smb_command, int wct, const struct cifsTconInfo *tcon, |
| void **request_buf /* returned */ , |
| void **response_buf /* returned */ ) |
| { |
| int rc = 0; |
| |
| *request_buf = buf_get(); |
| if (request_buf == 0) { |
| return -ENOMEM; |
| } |
| /* Although the original thought was we needed the response buf for */ |
| /* potential retries of smb operations it turns out we can determine */ |
| /* from the mid flags when the request buffer can be resent without */ |
| /* having to use a second distinct buffer for the response */ |
| *response_buf = *request_buf; |
| |
| header_assemble((struct smb_hdr *) *request_buf, smb_command, tcon, |
| wct /*wct */ ); |
| return rc; |
| } |
| |
| int |
| CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses, |
| char cryptokey[CIFS_CRYPTO_KEY_SIZE]) |
| { |
| NEGOTIATE_REQ *pSMB; |
| NEGOTIATE_RSP *pSMBr; |
| int rc = 0; |
| int bytes_returned; |
| |
| rc = smb_init(SMB_COM_NEGOTIATE, 0, 0 /* no tcon yet */ , |
| (void **) &pSMB, (void **) &pSMBr); |
| if (rc) |
| return rc; |
| |
| pSMB->hdr.Flags2 |= SMBFLG2_UNICODE; |
| if (extended_security) |
| pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; |
| if (sign_CIFS_PDUs) { |
| pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE; |
| } |
| |
| pSMB->ByteCount = strlen(protocols[0].name) + 1; |
| strncpy(pSMB->DialectsArray, protocols[0].name, 30); |
| /* null guaranteed to be at end of source and target buffers anyway */ |
| |
| pSMB->hdr.smb_buf_length += pSMB->ByteCount; |
| pSMB->ByteCount = cpu_to_le16(pSMB->ByteCount); |
| |
| rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, |
| (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| if (rc == 0) { |
| ses->dialectIndex = le16_to_cpu(pSMBr->DialectIndex); |
| ses->secMode = pSMBr->SecurityMode; |
| /* one byte - no need to convert this or EncryptionKeyLen from le,*/ |
| ses->maxReq = le16_to_cpu(pSMBr->MaxMpxCount); |
| /* probably no need to store and check maxvcs */ |
| ses->maxBuf = |
| min(le32_to_cpu(pSMBr->MaxBufferSize), |
| (__u32) CIFS_MAX_MSGSIZE + MAX_CIFS_HDR_SIZE); |
| ses->maxRw = le32_to_cpu(pSMBr->MaxRawSize); |
| cFYI(1, ("\nMax buf = %d ", ses->maxBuf)); |
| GETU32(ses->sessid) = le32_to_cpu(pSMBr->SessionKey); |
| ses->capabilities = le32_to_cpu(pSMBr->Capabilities); |
| ses->timeZone = le16_to_cpu(pSMBr->ServerTimeZone); |
| /* BB with UTC do we ever need to be using srvr timezone? */ |
| if (pSMBr->EncryptionKeyLength == CIFS_CRYPTO_KEY_SIZE) { |
| memcpy(cryptokey, pSMBr->u.EncryptionKey, |
| CIFS_CRYPTO_KEY_SIZE); |
| } else if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) |
| && (pSMBr->EncryptionKeyLength == 0)) { |
| /* decode security blob */ |
| } else |
| rc = -EIO; |
| |
| /* BB might be helpful to save off the domain of server here */ |
| |
| if (pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) { |
| if (pSMBr->ByteCount < 16) |
| rc = -EIO; |
| else if (pSMBr->ByteCount == 16) { |
| ses->secType = RawNTLMSSP; |
| if (ses->server->socketUseCount.counter > 1) { |
| if (memcmp |
| (ses->server->server_GUID, |
| pSMBr->u.extended_response. |
| GUID, 16) != 0) { |
| cFYI(1, |
| ("UID of server does not match that of previous connection to same ip address")); |
| memcpy(ses->server-> |
| server_GUID, |
| pSMBr->u. |
| extended_response. |
| GUID, 16); |
| } |
| } else |
| memcpy(ses->server->server_GUID, |
| pSMBr->u.extended_response. |
| GUID, 16); |
| } else { |
| rc = decode_negTokenInit(pSMBr->u. |
| extended_response. |
| SecurityBlob, |
| pSMBr->ByteCount - |
| 16, &ses->secType); |
| } |
| |
| } else |
| ses->capabilities &= ~CAP_EXTENDED_SECURITY; |
| if(sign_CIFS_PDUs == FALSE) { |
| if(ses->secMode & SECMODE_SIGN_REQUIRED) |
| cERROR(1,("\nServer required CIFS packet signing - enable /proc/fs/cifs/PacketSigningEnabled")); |
| ses->secMode &= ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); |
| } |
| } |
| if (pSMB) |
| buf_release(pSMB); |
| return rc; |
| } |
| |
| int |
| CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon) |
| { |
| struct smb_hdr *smb_buffer; |
| struct smb_hdr *smb_buffer_response; |
| int rc = 0; |
| int length; |
| |
| cFYI(1, ("\nIn tree disconnect")); |
| /* |
| * If last user of the connection and |
| * connection alive - disconnect it |
| * If this is the last connection on the server session disconnect it |
| * (and inside session disconnect we should check if tcp socket needs to |
| * be freed and kernel thread woken up). |
| */ |
| if (tcon) |
| down(&tcon->tconSem); |
| else |
| return -EIO; |
| |
| atomic_dec(&tcon->useCount); |
| if (atomic_read(&tcon->useCount) > 0) { |
| up(&tcon->tconSem); |
| return -EBUSY; |
| } |
| |
| /* BB remove (from server) list of shares - but with smp safety BB */ |
| /* BB is ses active - do we need to check here - but how? BB */ |
| |
| rc = smb_init(SMB_COM_TREE_DISCONNECT, 0, tcon, |
| (void **) &smb_buffer, (void **) &smb_buffer_response); |
| if (rc) { |
| up(&tcon->tconSem); |
| return rc; |
| } |
| rc = SendReceive(xid, tcon->ses, smb_buffer, smb_buffer_response, |
| &length, 0); |
| if (rc) |
| cFYI(1, (" Tree disconnect failed %d", rc)); |
| |
| if (smb_buffer) |
| buf_release(smb_buffer); |
| up(&tcon->tconSem); |
| return rc; |
| } |
| |
| int |
| CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses) |
| { |
| struct smb_hdr *smb_buffer_response; |
| LOGOFF_ANDX_REQ *pSMB; |
| int rc = 0; |
| int length; |
| |
| cFYI(1, ("\nIn SMBLogoff for session disconnect")); |
| |
| if (ses) |
| down(&ses->sesSem); /* need to add more places where this sem is checked */ |
| else |
| return -EIO; |
| |
| atomic_dec(&ses->inUse); |
| if (atomic_read(&ses->inUse) > 0) { |
| up(&ses->sesSem); |
| return -EBUSY; |
| } |
| if(ses->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) |
| pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE; |
| rc = smb_init(SMB_COM_LOGOFF_ANDX, 2, 0 /* no tcon anymore */ , |
| (void **) &pSMB, (void **) &smb_buffer_response); |
| if (rc) { |
| up(&ses->sesSem); |
| return rc; |
| } |
| |
| pSMB->hdr.Uid = ses->Suid; |
| |
| pSMB->AndXCommand = 0xFF; |
| rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, |
| smb_buffer_response, &length, 0); |
| if (ses->server) { |
| atomic_dec(&ses->server->socketUseCount); |
| if (atomic_read(&ses->server->socketUseCount) == 0) |
| ses->server->tcpStatus = CifsExiting; |
| } |
| if (pSMB) |
| buf_release(pSMB); |
| up(&ses->sesSem); |
| return rc; |
| } |
| |
| int |
| CIFSSMBDelFile(const int xid, const struct cifsTconInfo *tcon, |
| const char *fileName, const struct nls_table *nls_codepage) |
| { |
| DELETE_FILE_REQ *pSMB = NULL; |
| DELETE_FILE_RSP *pSMBr = NULL; |
| int rc = 0; |
| int bytes_returned; |
| int name_len; |
| |
| rc = smb_init(SMB_COM_DELETE, 1, tcon, (void **) &pSMB, |
| (void **) &pSMBr); |
| if (rc) |
| return rc; |
| |
| if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| name_len = |
| cifs_strtoUCS((wchar_t *) pSMB->fileName, fileName, 530 |
| /* find define for this maxpathcomponent */ |
| , nls_codepage); |
| name_len++; /* trailing null */ |
| name_len *= 2; |
| } else { /* BB improve the check for buffer overruns BB */ |
| |
| name_len = strnlen(fileName, 530); |
| name_len++; /* trailing null */ |
| strncpy(pSMB->fileName, fileName, name_len); |
| } |
| pSMB->SearchAttributes = |
| cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM); |
| pSMB->ByteCount = name_len + 1; |
| pSMB->BufferFormat = 0x04; |
| pSMB->hdr.smb_buf_length += pSMB->ByteCount; |
| pSMB->ByteCount = cpu_to_le16(pSMB->ByteCount); |
| rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| if (rc) { |
| cERROR(1, ("\nSend error in RMFile = %d\n", rc)); |
| } |
| if (pSMB) |
| buf_release(pSMB); |
| return rc; |
| } |
| |
| int |
| CIFSSMBRmDir(const int xid, const struct cifsTconInfo *tcon, |
| const char *dirName, const struct nls_table *nls_codepage) |
| { |
| DELETE_DIRECTORY_REQ *pSMB = NULL; |
| DELETE_DIRECTORY_RSP *pSMBr = NULL; |
| int rc = 0; |
| int bytes_returned; |
| int name_len; |
| |
| cFYI(1, ("\nIn CIFSSMBRmDir")); |
| |
| rc = smb_init(SMB_COM_DELETE_DIRECTORY, 0, tcon, (void **) &pSMB, |
| (void **) &pSMBr); |
| if (rc) |
| return rc; |
| |
| if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| name_len = cifs_strtoUCS((wchar_t *) pSMB->DirName, dirName, 530 |
| /* find define for this maxpathcomponent */ |
| , nls_codepage); |
| name_len++; /* trailing null */ |
| name_len *= 2; |
| } else { /* BB improve the check for buffer overruns BB */ |
| |
| name_len = strnlen(dirName, 530); |
| name_len++; /* trailing null */ |
| strncpy(pSMB->DirName, dirName, name_len); |
| } |
| |
| pSMB->ByteCount = name_len + 1; |
| pSMB->BufferFormat = 0x04; |
| pSMB->hdr.smb_buf_length += pSMB->ByteCount; |
| pSMB->ByteCount = cpu_to_le16(pSMB->ByteCount); |
| rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| if (rc) { |
| cERROR(1, ("\nSend error in RMDir = %d\n", rc)); |
| } |
| if (pSMB) |
| buf_release(pSMB); |
| return rc; |
| } |
| |
| int |
| CIFSSMBMkDir(const int xid, const struct cifsTconInfo *tcon, |
| const char *name, const struct nls_table *nls_codepage) |
| { |
| int rc = 0; |
| CREATE_DIRECTORY_REQ *pSMB = NULL; |
| CREATE_DIRECTORY_RSP *pSMBr = NULL; |
| int bytes_returned; |
| int name_len; |
| |
| cFYI(1, ("\nIn CIFSSMBMkDir")); |
| |
| rc = smb_init(SMB_COM_CREATE_DIRECTORY, 0, tcon, (void **) &pSMB, |
| (void **) &pSMBr); |
| if (rc) |
| return rc; |
| |
| if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| name_len = cifs_strtoUCS((wchar_t *) pSMB->DirName, name, 530 |
| /* find define for this maxpathcomponent */ |
| , nls_codepage); |
| name_len++; /* trailing null */ |
| name_len *= 2; |
| } else { /* BB improve the check for buffer overruns BB */ |
| |
| name_len = strnlen(name, 530); |
| name_len++; /* trailing null */ |
| strncpy(pSMB->DirName, name, name_len); |
| } |
| |
| pSMB->ByteCount = name_len + 1 /* for buf format */ ; |
| pSMB->BufferFormat = 0x04; |
| pSMB->hdr.smb_buf_length += pSMB->ByteCount; |
| pSMB->ByteCount = cpu_to_le16(pSMB->ByteCount); |
| rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| if (rc) { |
| cERROR(1, ("\nSend error in RMDir = %d\n", rc)); |
| } |
| if (pSMB) |
| buf_release(pSMB); |
| |
| return rc; |
| } |
| |
| int |
| CIFSSMBOpen(const int xid, const struct cifsTconInfo *tcon, |
| const char *fileName, const int openDisposition, |
| const int access_flags, const int create_options, __u16 * netfid, |
| int *pOplock, const struct nls_table *nls_codepage) |
| { |
| int rc = -EACCES; |
| OPEN_REQ *pSMB = NULL; |
| OPEN_RSP *pSMBr = NULL; |
| int bytes_returned; |
| int name_len; |
| |
| rc = smb_init(SMB_COM_NT_CREATE_ANDX, 24, tcon, (void **) &pSMB, |
| (void **) &pSMBr); |
| if (rc) |
| return rc; |
| |
| pSMB->AndXCommand = 0xFF; /* none */ |
| |
| if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| pSMB->ByteCount = 1; /* account for one byte pad to word boundary */ |
| name_len = |
| cifs_strtoUCS((wchar_t *) (pSMB->fileName + 1), |
| fileName, 530 |
| /* find define for this maxpathcomponent */ |
| , nls_codepage); |
| name_len++; /* trailing null */ |
| name_len *= 2; |
| pSMB->NameLength = cpu_to_le16(name_len); |
| } else { /* BB improve the check for buffer overruns BB */ |
| |
| pSMB->ByteCount = 0; /* no pad */ |
| name_len = strnlen(fileName, 530); |
| name_len++; /* trailing null */ |
| pSMB->NameLength = cpu_to_le16(name_len); |
| strncpy(pSMB->fileName, fileName, name_len); |
| } |
| if (*pOplock) |
| pSMB->OpenFlags = cpu_to_le32(REQ_OPLOCK); |
| pSMB->DesiredAccess = cpu_to_le32(access_flags); |
| pSMB->AllocationSize = 0; |
| pSMB->FileAttributes = ATTR_NORMAL; /* XP does not handle ATTR_POSIX_SEMANTICS */ |
| /*if ((omode & S_IWUGO) == 0) |
| pSMB->FileAttributes |= ATTR_READONLY;*/ |
| /* Above line causes problems due to problem with vfs splitting create into |
| two pieces - need to set mode after file created not while it is being created */ |
| pSMB->FileAttributes = cpu_to_le32(pSMB->FileAttributes); |
| pSMB->ShareAccess = cpu_to_le32(FILE_SHARE_ALL); |
| pSMB->CreateDisposition = cpu_to_le32(openDisposition); |
| pSMB->CreateOptions = cpu_to_le32(create_options); |
| pSMB->ImpersonationLevel = cpu_to_le32(SECURITY_IMPERSONATION); /* BB ?? BB */ |
| pSMB->SecurityFlags = |
| cpu_to_le32(SECURITY_CONTEXT_TRACKING | SECURITY_EFFECTIVE_ONLY); |
| |
| pSMB->ByteCount += name_len; |
| pSMB->hdr.smb_buf_length += pSMB->ByteCount; |
| |
| pSMB->ByteCount = cpu_to_le16(pSMB->ByteCount); |
| rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| if (rc) { |
| cERROR(1, ("\nSend error in Open = %d\n", rc)); |
| } else { |
| *pOplock = pSMBr->OplockLevel; /* one byte no need to le_to_cpu */ |
| *netfid = pSMBr->Fid; /* cifs fid stays in le */ |
| /* Do we care about the CreateAction in any cases? */ |
| |
| /* BB add code to update inode with file sizes from create response */ |
| } |
| if (pSMB) |
| buf_release(pSMB); |
| |
| return rc; |
| } |
| |
| int |
| CIFSSMBRead(const int xid, const struct cifsTconInfo *tcon, |
| const int netfid, const unsigned int count, |
| const __u64 lseek, unsigned int *nbytes, char *buf) |
| { |
| int rc = -EACCES; |
| READ_REQ *pSMB = NULL; |
| READ_RSP *pSMBr = NULL; |
| char *pReadData; |
| int bytes_returned; |
| |
| rc = smb_init(SMB_COM_READ_ANDX, 12, tcon, (void **) &pSMB, |
| (void **) &pSMBr); |
| if (rc) |
| return rc; |
| |
| pSMB->AndXCommand = 0xFF; /* none */ |
| pSMB->Fid = netfid; |
| pSMB->OffsetLow = cpu_to_le32(lseek & 0xFFFFFFFF); |
| pSMB->OffsetHigh = cpu_to_le32(lseek >> 32); |
| pSMB->Remaining = 0; |
| pSMB->MaxCount = cpu_to_le16(min(count, |
| (tcon->ses->maxBuf - |
| MAX_CIFS_HDR_SIZE) & 0xFFFFFF00)); |
| pSMB->MaxCountHigh = 0; |
| pSMB->ByteCount = 0; /* no need to do le conversion since it is 0 */ |
| |
| rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| if (rc) { |
| cERROR(1, ("\nSend error in read = %d\n", rc)); |
| *nbytes = 0; |
| } else { |
| pSMBr->DataLength = le16_to_cpu(pSMBr->DataLength); |
| *nbytes = pSMBr->DataLength; |
| /*check that DataLength would not go beyond end of SMB */ |
| if ((pSMBr->DataLength > CIFS_MAX_MSGSIZE) |
| || (pSMBr->DataLength > count)) { |
| rc = -EIO; |
| *nbytes = 0; |
| } else { |
| pReadData = |
| (char *) (&pSMBr->hdr.Protocol) + |
| le16_to_cpu(pSMBr->DataOffset); |
| /* if(rc = copy_to_user(buf, pReadData, pSMBr->DataLength)) { |
| cERROR(1,("\nFaulting on read rc = %d",rc)); |
| rc = -EFAULT; |
| }*/ /* can not use copy_to_user when using page cache*/ |
| memcpy(buf,pReadData,pSMBr->DataLength); |
| } |
| } |
| |
| if (pSMB) |
| buf_release(pSMB); |
| |
| return rc; |
| } |
| |
| int |
| CIFSSMBWrite(const int xid, const struct cifsTconInfo *tcon, |
| const int netfid, const unsigned int count, |
| const __u64 offset, unsigned int *nbytes, const char *buf, |
| const int long_op) |
| { |
| int rc = -EACCES; |
| WRITE_REQ *pSMB = NULL; |
| WRITE_RSP *pSMBr = NULL; |
| int bytes_returned; |
| |
| rc = smb_init(SMB_COM_WRITE_ANDX, 14, tcon, (void **) &pSMB, |
| (void **) &pSMBr); |
| if (rc) |
| return rc; |
| |
| pSMB->AndXCommand = 0xFF; /* none */ |
| pSMB->Fid = netfid; |
| pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF); |
| pSMB->OffsetHigh = cpu_to_le32(offset >> 32); |
| pSMB->Remaining = 0; |
| if (count > ((tcon->ses->maxBuf - MAX_CIFS_HDR_SIZE) & 0xFFFFFF00)) |
| pSMB->DataLengthLow = |
| (tcon->ses->maxBuf - MAX_CIFS_HDR_SIZE) & 0xFFFFFF00; |
| else |
| pSMB->DataLengthLow = count; |
| pSMB->DataLengthHigh = 0; |
| pSMB->DataOffset = |
| cpu_to_le16(offsetof(struct smb_com_write_req,Data) - 4); |
| |
| memcpy(pSMB->Data,buf,pSMB->DataLengthLow); |
| |
| pSMB->ByteCount += pSMB->DataLengthLow + 1 /* pad */ ; |
| pSMB->DataLengthLow = cpu_to_le16(pSMB->DataLengthLow); |
| pSMB->hdr.smb_buf_length += pSMB->ByteCount; |
| pSMB->ByteCount = cpu_to_le16(pSMB->ByteCount); |
| |
| rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| (struct smb_hdr *) pSMBr, &bytes_returned, long_op); |
| if (rc) { |
| cERROR(1, ("\nSend error in write = %d\n", rc)); |
| *nbytes = 0; |
| } else |
| *nbytes = le16_to_cpu(pSMBr->Count); |
| |
| if (pSMB) |
| buf_release(pSMB); |
| |
| return rc; |
| } |
| |
| int |
| CIFSSMBLock(const int xid, const struct cifsTconInfo *tcon, |
| const __u16 smb_file_id, const __u64 len, |
| const __u64 offset, const __u32 numUnlock, |
| const __u32 numLock, const __u8 lockType, const int waitFlag) |
| { |
| int rc = 0; |
| LOCK_REQ *pSMB = NULL; |
| LOCK_RSP *pSMBr = NULL; |
| int bytes_returned; |
| |
| cFYI(1, ("\nIn CIFSSMBLock")); |
| |
| rc = smb_init(SMB_COM_LOCKING_ANDX, 8, tcon, (void **) &pSMB, |
| (void **) &pSMBr); |
| if (rc) |
| return rc; |
| |
| pSMB->NumberOfLocks = cpu_to_le32(numLock); |
| pSMB->NumberOfUnlocks = cpu_to_le32(numUnlock); |
| pSMB->LockType = lockType; |
| pSMB->AndXCommand = 0xFF; /* none */ |
| pSMB->Fid = smb_file_id; /* netfid stays le */ |
| |
| pSMB->Locks[0].Pid = cpu_to_le16(current->pid); |
| pSMB->Locks[0].Length = cpu_to_le64(len); |
| pSMB->Locks[0].Offset = cpu_to_le64(offset); |
| pSMB->ByteCount = sizeof (LOCKING_ANDX_RANGE); |
| pSMB->hdr.smb_buf_length += pSMB->ByteCount; |
| pSMB->ByteCount = cpu_to_le16(pSMB->ByteCount); |
| |
| rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| |
| if (rc) { |
| cERROR(1, ("\nSend error in Lock = %d\n", rc)); |
| } |
| if (pSMB) |
| buf_release(pSMB); |
| |
| return rc; |
| } |
| |
| int |
| CIFSSMBClose(const int xid, const struct cifsTconInfo *tcon, int smb_file_id) |
| { |
| int rc = 0; |
| CLOSE_REQ *pSMB = NULL; |
| CLOSE_RSP *pSMBr = NULL; |
| int bytes_returned; |
| cFYI(1, ("\nIn CIFSSMBClose")); |
| |
| rc = smb_init(SMB_COM_CLOSE, 3, tcon, (void **) &pSMB, |
| (void **) &pSMBr); |
| if (rc) |
| return rc; |
| |
| pSMB->FileID = (__u16) smb_file_id; |
| pSMB->LastWriteTime = 0; |
| pSMB->ByteCount = 0; |
| rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| if (rc) { |
| cERROR(1, ("\nSend error in Close = %d\n", rc)); |
| } |
| if (pSMB) |
| buf_release(pSMB); |
| |
| return rc; |
| } |
| |
| int |
| CIFSSMBRename(const int xid, const struct cifsTconInfo *tcon, |
| const char *fromName, const char *toName, |
| const struct nls_table *nls_codepage) |
| { |
| int rc = 0; |
| RENAME_REQ *pSMB = NULL; |
| RENAME_RSP *pSMBr = NULL; |
| int bytes_returned; |
| int name_len, name_len2; |
| |
| cFYI(1, ("\nIn CIFSSMBRename")); |
| |
| rc = smb_init(SMB_COM_RENAME, 1, tcon, (void **) &pSMB, |
| (void **) &pSMBr); |
| if (rc) |
| return rc; |
| |
| pSMB->BufferFormat = 0x04; |
| pSMB->SearchAttributes = |
| cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | |
| ATTR_DIRECTORY); |
| |
| if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| name_len = |
| cifs_strtoUCS((wchar_t *) pSMB->OldFileName, fromName, 530 |
| /* find define for this maxpathcomponent */ |
| , nls_codepage); |
| name_len++; /* trailing null */ |
| name_len *= 2; |
| pSMB->OldFileName[name_len] = 0; /* pad */ |
| pSMB->OldFileName[name_len + 1] = 0x04; /* strange that protocol requires an ASCII signature byte on Unicode string */ |
| name_len2 = |
| cifs_strtoUCS((wchar_t *) & pSMB-> |
| OldFileName[name_len + 2], toName, 530, |
| nls_codepage); |
| name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
| name_len2 *= 2; /* convert to bytes */ |
| } else { /* BB improve the check for buffer overruns BB */ |
| |
| name_len = strnlen(fromName, 530); |
| name_len++; /* trailing null */ |
| strncpy(pSMB->OldFileName, fromName, name_len); |
| name_len2 = strnlen(toName, 530); |
| name_len2++; /* trailing null */ |
| pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ |
| strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); |
| name_len2++; /* trailing null */ |
| name_len2++; /* signature byte */ |
| } |
| |
| pSMB->ByteCount = 1 /* 1st signature byte */ + name_len + name_len2; |
| /* we could also set search attributes but not needed */ |
| pSMB->hdr.smb_buf_length += pSMB->ByteCount; |
| pSMB->ByteCount = cpu_to_le16(pSMB->ByteCount); |
| |
| rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| if (rc) { |
| cFYI(1, ("\nSend error in RMDir = %d\n", rc)); |
| } |
| if (pSMB) |
| buf_release(pSMB); |
| |
| return rc; |
| } |
| |
| int |
| CIFSUnixCreateSymLink(const int xid, const struct cifsTconInfo *tcon, |
| const char *fromName, const char *toName, |
| const struct nls_table *nls_codepage) |
| { |
| TRANSACTION2_SPI_REQ *pSMB = NULL; |
| TRANSACTION2_SPI_RSP *pSMBr = NULL; |
| char *data_offset; |
| int name_len; |
| int name_len_target; |
| int rc = 0; |
| int bytes_returned = 0; |
| |
| cFYI(1, ("\nIn Symlink Unix style")); |
| |
| rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| (void **) &pSMBr); |
| if (rc) |
| return rc; |
| |
| if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| name_len = |
| cifs_strtoUCS((wchar_t *) pSMB->FileName, fromName, 530 |
| /* find define for this maxpathcomponent */ |
| , nls_codepage); |
| name_len++; /* trailing null */ |
| name_len *= 2; |
| |
| } else { /* BB improve the check for buffer overruns BB */ |
| name_len = strnlen(fromName, 530); |
| name_len++; /* trailing null */ |
| strncpy(pSMB->FileName, fromName, name_len); |
| } |
| pSMB->ParameterCount = 6 + name_len; |
| pSMB->MaxSetupCount = 0; |
| pSMB->Reserved = 0; |
| pSMB->Flags = 0; |
| pSMB->Timeout = 0; |
| pSMB->Reserved2 = 0; |
| pSMB->ParameterOffset = offsetof(struct smb_com_transaction2_spi_req, |
| InformationLevel) - 4; |
| pSMB->DataOffset = pSMB->ParameterOffset + pSMB->ParameterCount; |
| |
| data_offset = (char *) (&pSMB->hdr.Protocol) + pSMB->DataOffset; |
| if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| name_len_target = |
| cifs_strtoUCS((wchar_t *) data_offset, toName, 530 |
| /* find define for this maxpathcomponent */ |
| , nls_codepage); |
| name_len_target++; /* trailing null */ |
| name_len_target *= 2; |
| } else { /* BB improve the check for buffer overruns BB */ |
| name_len_target = strnlen(toName, 530); |
| name_len_target++; /* trailing null */ |
| strncpy(data_offset, toName, name_len_target); |
| } |
| |
| pSMB->DataCount = name_len_target; |
| pSMB->MaxParameterCount = cpu_to_le16(2); |
| pSMB->MaxDataCount = cpu_to_le16(1000); /*BB find exact max SMB from sess */ |
| pSMB->SetupCount = 1; |
| pSMB->Reserved3 = 0; |
| pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); |
| pSMB->ByteCount = 3 /* pad */ + pSMB->ParameterCount + pSMB->DataCount; |
| pSMB->DataCount = cpu_to_le16(pSMB->DataCount); |
| pSMB->ParameterCount = cpu_to_le16(pSMB->ParameterCount); |
| pSMB->TotalDataCount = pSMB->DataCount; |
| pSMB->TotalParameterCount = pSMB->ParameterCount; |
| pSMB->ParameterOffset = cpu_to_le16(pSMB->ParameterOffset); |
| pSMB->DataOffset = cpu_to_le16(pSMB->DataOffset); |
| pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_LINK); |
| pSMB->Reserved4 = 0; |
| pSMB->hdr.smb_buf_length += pSMB->ByteCount; |
| pSMB->ByteCount = cpu_to_le16(pSMB->ByteCount); |
| rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| if (rc) { |
| cFYI(1, |
| ("\nSend error in SetPathInfo (create symlink) = %d\n", |
| rc)); |
| } |
| |
| if (pSMB) |
| buf_release(pSMB); |
| return rc; |
| } |
| |
| int |
| CIFSUnixCreateHardLink(const int xid, const struct cifsTconInfo *tcon, |
| const char *fromName, const char *toName, |
| const struct nls_table *nls_codepage) |
| { |
| TRANSACTION2_SPI_REQ *pSMB = NULL; |
| TRANSACTION2_SPI_RSP *pSMBr = NULL; |
| char *data_offset; |
| int name_len; |
| int name_len_target; |
| int rc = 0; |
| int bytes_returned = 0; |
| |
| cFYI(1, ("\nIn Create Hard link Unix style")); |
| |
| rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| (void **) &pSMBr); |
| if (rc) |
| return rc; |
| |
| if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| name_len = cifs_strtoUCS((wchar_t *) pSMB->FileName, toName, 530 |
| /* find define for this maxpathcomponent */ |
| , nls_codepage); |
| name_len++; /* trailing null */ |
| name_len *= 2; |
| |
| } else { /* BB improve the check for buffer overruns BB */ |
| name_len = strnlen(toName, 530); |
| name_len++; /* trailing null */ |
| strncpy(pSMB->FileName, toName, name_len); |
| } |
| pSMB->ParameterCount = 6 + name_len; |
| pSMB->MaxSetupCount = 0; |
| pSMB->Reserved = 0; |
| pSMB->Flags = 0; |
| pSMB->Timeout = 0; |
| pSMB->Reserved2 = 0; |
| pSMB->ParameterOffset = offsetof(struct smb_com_transaction2_spi_req, |
| InformationLevel) - 4; |
| pSMB->DataOffset = pSMB->ParameterOffset + pSMB->ParameterCount; |
| |
| data_offset = (char *) (&pSMB->hdr.Protocol) + pSMB->DataOffset; |
| if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| name_len_target = |
| cifs_strtoUCS((wchar_t *) data_offset, fromName, 530 |
| /* find define for this maxpathcomponent */ |
| , nls_codepage); |
| name_len_target++; /* trailing null */ |
| name_len_target *= 2; |
| } else { /* BB improve the check for buffer overruns BB */ |
| name_len_target = strnlen(fromName, 530); |
| name_len_target++; /* trailing null */ |
| strncpy(data_offset, fromName, name_len_target); |
| } |
| |
| pSMB->DataCount = name_len_target; |
| pSMB->MaxParameterCount = cpu_to_le16(2); |
| pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB from sess*/ |
| pSMB->SetupCount = 1; |
| pSMB->Reserved3 = 0; |
| pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); |
| pSMB->ByteCount = 3 /* pad */ + pSMB->ParameterCount + pSMB->DataCount; |
| pSMB->ParameterCount = cpu_to_le16(pSMB->ParameterCount); |
| pSMB->TotalParameterCount = pSMB->ParameterCount; |
| pSMB->DataCount = cpu_to_le16(pSMB->DataCount); |
| pSMB->TotalDataCount = pSMB->DataCount; |
| pSMB->ParameterOffset = cpu_to_le16(pSMB->ParameterOffset); |
| pSMB->DataOffset = cpu_to_le16(pSMB->DataOffset); |
| pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_HLINK); |
| pSMB->Reserved4 = 0; |
| pSMB->hdr.smb_buf_length += pSMB->ByteCount; |
| pSMB->ByteCount = cpu_to_le16(pSMB->ByteCount); |
| rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| if (rc) { |
| cFYI(1, ("\nSend error in SetPathInfo (hard link) = %d\n", rc)); |
| } |
| |
| if (pSMB) |
| buf_release(pSMB); |
| return rc; |
| } |
| |
| int |
| CIFSCreateHardLink(const int xid, const struct cifsTconInfo *tcon, |
| const char *fromName, const char *toName, |
| const struct nls_table *nls_codepage) |
| { |
| int rc = 0; |
| NT_RENAME_REQ *pSMB = NULL; |
| RENAME_RSP *pSMBr = NULL; |
| int bytes_returned; |
| int name_len, name_len2; |
| |
| cFYI(1, ("\nIn CIFSCreateHardLink")); |
| |
| rc = smb_init(SMB_COM_NT_RENAME, 4, tcon, (void **) &pSMB, |
| (void **) &pSMBr); |
| if (rc) |
| return rc; |
| |
| pSMB->SearchAttributes = |
| cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | |
| ATTR_DIRECTORY); |
| pSMB->Flags = cpu_to_le16(CREATE_HARD_LINK); |
| pSMB->ClusterCount = 0; |
| |
| pSMB->BufferFormat = 0x04; |
| |
| if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| name_len = |
| cifs_strtoUCS((wchar_t *) pSMB->OldFileName, fromName, 530 |
| /* find define for this maxpathcomponent */ |
| , nls_codepage); |
| name_len++; /* trailing null */ |
| name_len *= 2; |
| pSMB->OldFileName[name_len] = 0; /* pad */ |
| pSMB->OldFileName[name_len + 1] = 0x04; /* strange that protocol requires an ASCII signature byte on Unicode string */ |
| name_len2 = |
| cifs_strtoUCS((wchar_t *) & pSMB-> |
| OldFileName[name_len + 2], toName, 530, |
| nls_codepage); |
| name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
| name_len2 *= 2; /* convert to bytes */ |
| } else { /* BB improve the check for buffer overruns BB */ |
| |
| name_len = strnlen(fromName, 530); |
| name_len++; /* trailing null */ |
| strncpy(pSMB->OldFileName, fromName, name_len); |
| name_len2 = strnlen(toName, 530); |
| name_len2++; /* trailing null */ |
| pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ |
| strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); |
| name_len2++; /* trailing null */ |
| name_len2++; /* signature byte */ |
| } |
| |
| pSMB->ByteCount = 1 /* string type byte */ + name_len + name_len2; |
| pSMB->hdr.smb_buf_length += pSMB->ByteCount; |
| pSMB->ByteCount = cpu_to_le16(pSMB->ByteCount); |
| |
| rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| if (rc) { |
| cFYI(1, ("\nSend error in hard link (NT rename) = %d\n", rc)); |
| } |
| if (pSMB) |
| buf_release(pSMB); |
| |
| return rc; |
| } |
| |
| int |
| CIFSSMBUnixQuerySymLink(const int xid, const struct cifsTconInfo *tcon, |
| const unsigned char *searchName, |
| char *symlinkinfo, const int buflen, |
| const struct nls_table *nls_codepage) |
| { |
| /* SMB_QUERY_FILE_UNIX_LINK */ |
| TRANSACTION2_QPI_REQ *pSMB = NULL; |
| TRANSACTION2_QPI_RSP *pSMBr = NULL; |
| int rc = 0; |
| int bytes_returned; |
| int name_len; |
| |
| cFYI(1, ("\nIn QPathSymLinkInfo (Unix) for path %s", searchName)); |
| rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| (void **) &pSMBr); |
| if (rc) |
| return rc; |
| |
| if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| name_len = |
| cifs_strtoUCS((wchar_t *) pSMB->FileName, searchName, 530 |
| /* find define for this maxpathcomponent */ |
| , nls_codepage); |
| name_len++; /* trailing null */ |
| name_len *= 2; |
| } else { /* BB improve the check for buffer overruns BB */ |
| |
| name_len = strnlen(searchName, 530); |
| name_len++; /* trailing null */ |
| strncpy(pSMB->FileName, searchName, name_len); |
| } |
| |
| pSMB->TotalParameterCount = |
| 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; |
| pSMB->TotalDataCount = 0; |
| pSMB->MaxParameterCount = cpu_to_le16(2); |
| pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ |
| pSMB->MaxSetupCount = 0; |
| pSMB->Reserved = 0; |
| pSMB->Flags = 0; |
| pSMB->Timeout = 0; |
| pSMB->Reserved2 = 0; |
| pSMB->ParameterOffset = cpu_to_le16(offsetof( |
| struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); |
| pSMB->DataCount = 0; |
| pSMB->DataOffset = 0; |
| pSMB->SetupCount = 1; |
| pSMB->Reserved3 = 0; |
| pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); |
| pSMB->ByteCount = pSMB->TotalParameterCount + 1 /* pad */ ; |
| pSMB->TotalParameterCount = cpu_to_le16(pSMB->TotalParameterCount); |
| pSMB->ParameterCount = pSMB->TotalParameterCount; |
| pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_LINK); |
| pSMB->Reserved4 = 0; |
| pSMB->hdr.smb_buf_length += pSMB->ByteCount; |
| pSMB->ByteCount = cpu_to_le16(pSMB->ByteCount); |
| |
| rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| if (rc) { |
| cFYI(1, ("\nSend error in QuerySymLinkInfo = %d\n", rc)); |
| } else { /* decode response */ |
| pSMBr->DataOffset = le16_to_cpu(pSMBr->DataOffset); |
| pSMBr->DataCount = le16_to_cpu(pSMBr->DataCount); |
| if ((pSMBr->ByteCount < 2) || (pSMBr->DataOffset > 512)) |
| /* BB also check enough total bytes returned */ |
| rc = -EIO; /* bad smb */ |
| else { |
| if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { |
| name_len = UniStrnlen((wchar_t *) ((char *) |
| &pSMBr->hdr. |
| Protocol + |
| pSMBr-> |
| DataOffset), |
| min(buflen, |
| (int) pSMBr-> |
| DataCount) / 2); |
| cifs_strfromUCS_le(symlinkinfo, |
| (wchar_t *) ((char *) |
| &pSMBr-> |
| hdr. |
| Protocol + |
| pSMBr-> |
| DataOffset), |
| name_len, nls_codepage); |
| } else { |
| strncpy(symlinkinfo, |
| (char *) &pSMBr->hdr.Protocol + |
| pSMBr->DataOffset, min(buflen, (int) |
| pSMBr-> |
| DataCount)); |
| } |
| symlinkinfo[buflen] = 0; |
| /* just in case so calling code does not go off the end of buffer */ |
| } |
| } |
| if (pSMB) |
| buf_release(pSMB); |
| return rc; |
| } |
| |
| |
| |
| int |
| CIFSSMBQueryReparseLinkInfo(const int xid, const struct cifsTconInfo *tcon, |
| const unsigned char *searchName, |
| char *symlinkinfo, const int buflen,__u16 fid, |
| const struct nls_table *nls_codepage) |
| { |
| int rc = 0; |
| int bytes_returned; |
| int name_len; |
| struct smb_com_transaction_ioctl_req * pSMB; |
| struct smb_com_transaction_ioctl_rsp * pSMBr; |
| |
| cFYI(1, ("\nIn Windows reparse style QueryLink info for path %s", searchName)); |
| rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB, |
| (void **) &pSMBr); |
| if (rc) |
| return rc; |
| |
| pSMB->TotalParameterCount = 0 ; |
| pSMB->TotalDataCount = 0; |
| pSMB->MaxParameterCount = cpu_to_le16(2); |
| pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ |
| pSMB->MaxSetupCount = 4; |
| pSMB->Reserved = 0; |
| pSMB->ParameterOffset = 0; |
| pSMB->DataCount = 0; |
| pSMB->DataOffset = 0; |
| pSMB->SetupCount = 4; |
| pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_IOCTL); |
| pSMB->ParameterCount = pSMB->TotalParameterCount; |
| pSMB->FunctionCode = cpu_to_le32(FSCTL_GET_REPARSE_POINT); |
| pSMB->IsFsctl = 1; /* FSCTL */ |
| pSMB->IsRootFlag = 0; |
| pSMB->Fid = fid; /* file handle always le */ |
| pSMB->ByteCount = 0; |
| |
| rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| if (rc) { |
| cFYI(1, ("\nSend error in QueryReparseLinkInfo = %d\n", rc)); |
| } else { /* decode response */ |
| pSMBr->DataOffset = le16_to_cpu(pSMBr->DataOffset); |
| pSMBr->DataCount = le16_to_cpu(pSMBr->DataCount); |
| if ((pSMBr->ByteCount < 2) || (pSMBr->DataOffset > 512)) |
| /* BB also check enough total bytes returned */ |
| rc = -EIO; /* bad smb */ |
| else { |
| if(pSMBr->DataCount && (pSMBr->DataCount < 2048)) { |
| /* could also validata reparse tag && better check name length */ |
| struct reparse_data * reparse_buf = (struct reparse_data *) |
| ((char *)&pSMBr->hdr.Protocol + pSMBr->DataOffset); |
| if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { |
| name_len = UniStrnlen((wchar_t *) |
| (reparse_buf->LinkNamesBuf + |
| reparse_buf->TargetNameOffset), |
| min(buflen/2, reparse_buf->TargetNameLen / 2)); |
| cifs_strfromUCS_le(symlinkinfo, |
| (wchar_t *) (reparse_buf->LinkNamesBuf + |
| reparse_buf->TargetNameOffset), |
| name_len, nls_codepage); |
| } else { /* ASCII names */ |
| strncpy(symlinkinfo,reparse_buf->LinkNamesBuf + |
| reparse_buf->TargetNameOffset, |
| min(buflen, (int)reparse_buf->TargetNameLen)); |
| } |
| } else { |
| rc = -EIO; |
| cFYI(1,("\nInvalid return data count on get reparse info ioctl")); |
| } |
| symlinkinfo[buflen] = 0; /* just in case so the caller |
| does not go off the end of the buffer */ |
| cFYI(1,("\nreadlink result - %s ",symlinkinfo)); |
| } |
| } |
| if (pSMB) |
| buf_release(pSMB); |
| return rc; |
| } |
| |
| int |
| CIFSSMBQPathInfo(const int xid, const struct cifsTconInfo *tcon, |
| const unsigned char *searchName, |
| FILE_ALL_INFO * pFindData, |
| const struct nls_table *nls_codepage) |
| { |
| /* level 263 SMB_QUERY_FILE_ALL_INFO */ |
| TRANSACTION2_QPI_REQ *pSMB = NULL; |
| TRANSACTION2_QPI_RSP *pSMBr = NULL; |
| int rc = 0; |
| int bytes_returned; |
| int name_len; |
| |
| cFYI(1, ("\nIn QPathInfo path %s", searchName)); |
| rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| (void **) &pSMBr); |
| if (rc) |
| return rc; |
| |
| if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| name_len = |
| cifs_strtoUCS((wchar_t *) pSMB->FileName, searchName, 530 |
| /* find define for this maxpathcomponent */ |
| , nls_codepage); |
| name_len++; /* trailing null */ |
| name_len *= 2; |
| } else { /* BB improve the check for buffer overruns BB */ |
| |
| name_len = strnlen(searchName, 530); |
| name_len++; /* trailing null */ |
| strncpy(pSMB->FileName, searchName, name_len); |
| } |
| |
| pSMB->TotalParameterCount = 2 /* level */ + 4 /* reserved */ + |
| name_len /* includes null */ ; |
| pSMB->TotalDataCount = 0; |
| pSMB->MaxParameterCount = cpu_to_le16(2); |
| pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ |
| pSMB->MaxSetupCount = 0; |
| pSMB->Reserved = 0; |
| pSMB->Flags = 0; |
| pSMB->Timeout = 0; |
| pSMB->Reserved2 = 0; |
| pSMB->ParameterOffset = cpu_to_le16(offsetof( |
| struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); |
| pSMB->DataCount = 0; |
| pSMB->DataOffset = 0; |
| pSMB->SetupCount = 1; |
| pSMB->Reserved3 = 0; |
| pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); |
| pSMB->ByteCount = pSMB->TotalParameterCount + 1 /* pad */ ; |
| pSMB->TotalParameterCount = cpu_to_le16(pSMB->TotalParameterCount); |
| pSMB->ParameterCount = pSMB->TotalParameterCount; |
| pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_ALL_INFO); |
| pSMB->Reserved4 = 0; |
| pSMB->hdr.smb_buf_length += pSMB->ByteCount; |
| pSMB->ByteCount = cpu_to_le16(pSMB->ByteCount); |
| |
| rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| if (rc) { |
| cFYI(1, ("\nSend error in QPathInfo = %d\n", rc)); |
| } else { /* decode response */ |
| pSMBr->DataOffset = le16_to_cpu(pSMBr->DataOffset); |
| if ((pSMBr->ByteCount < 40) || (pSMBr->DataOffset > 512)) /* BB also check enough total bytes returned */ |
| rc = -EIO; /* bad smb */ |
| else { |
| memcpy((char *) pFindData, |
| (char *) &pSMBr->hdr.Protocol + |
| pSMBr->DataOffset, sizeof (FILE_ALL_INFO)); |
| } |
| } |
| if (pSMB) |
| buf_release(pSMB); |
| return rc; |
| } |
| |
| int |
| CIFSSMBUnixQPathInfo(const int xid, const struct cifsTconInfo *tcon, |
| const unsigned char *searchName, |
| FILE_UNIX_BASIC_INFO * pFindData, |
| const struct nls_table *nls_codepage) |
| { |
| /* SMB_QUERY_FILE_UNIX_BASIC */ |
| TRANSACTION2_QPI_REQ *pSMB = NULL; |
| TRANSACTION2_QPI_RSP *pSMBr = NULL; |
| int rc = 0; |
| int bytes_returned; |
| int name_len; |
| |
| cFYI(1, ("\nIn QPathInfo (Unix) the path %s", searchName)); |
| rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| (void **) &pSMBr); |
| if (rc) |
| return rc; |
| |
| if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| name_len = |
| cifs_strtoUCS((wchar_t *) pSMB->FileName, searchName, 530 |
| /* find define for this maxpathcomponent */ |
| , nls_codepage); |
| name_len++; /* trailing null */ |
| name_len *= 2; |
| } else { /* BB improve the check for buffer overruns BB */ |
| |
| name_len = strnlen(searchName, 530); |
| name_len++; /* trailing null */ |
| strncpy(pSMB->FileName, searchName, name_len); |
| } |
| |
| pSMB->TotalParameterCount = 2 /* level */ + 4 /* reserved */ + |
| name_len /* includes null */ ; |
| pSMB->TotalDataCount = 0; |
| pSMB->MaxParameterCount = cpu_to_le16(2); |
| pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ |
| pSMB->MaxSetupCount = 0; |
| pSMB->Reserved = 0; |
| pSMB->Flags = 0; |
| pSMB->Timeout = 0; |
| pSMB->Reserved2 = 0; |
| pSMB->ParameterOffset = cpu_to_le16(offsetof( |
| struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); |
| pSMB->DataCount = 0; |
| pSMB->DataOffset = 0; |
| pSMB->SetupCount = 1; |
| pSMB->Reserved3 = 0; |
| pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); |
| pSMB->ByteCount = pSMB->TotalParameterCount + 1 /* pad */ ; |
| pSMB->TotalParameterCount = cpu_to_le16(pSMB->TotalParameterCount); |
| pSMB->ParameterCount = pSMB->TotalParameterCount; |
| pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC); |
| pSMB->Reserved4 = 0; |
| pSMB->hdr.smb_buf_length += pSMB->ByteCount; |
| pSMB->ByteCount = cpu_to_le16(pSMB->ByteCount); |
| |
| rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| if (rc) { |
| cFYI(1, ("\nSend error in QPathInfo = %d\n", rc)); |
| } else { /* decode response */ |
| pSMBr->DataOffset = le16_to_cpu(pSMBr->DataOffset); |
| if ((pSMBr->ByteCount < 40) || (pSMBr->DataOffset > 512)) /* BB also check enough total bytes returned */ |
| rc = -EIO; /* bad smb */ |
| else { |
| memcpy((char *) pFindData, |
| (char *) &pSMBr->hdr.Protocol + |
| pSMBr->DataOffset, |
| sizeof (FILE_UNIX_BASIC_INFO)); |
| } |
| } |
| if (pSMB) |
| buf_release(pSMB); |
| return rc; |
| } |
| |
| int |
| CIFSFindSingle(const int xid, const struct cifsTconInfo *tcon, |
| const char *searchName, FILE_ALL_INFO * findData, |
| const struct nls_table *nls_codepage) |
| { |
| /* level 257 SMB_ */ |
| TRANSACTION2_FFIRST_REQ *pSMB = NULL; |
| TRANSACTION2_FFIRST_RSP *pSMBr = NULL; |
| int rc = 0; |
| int bytes_returned; |
| int name_len; |
| |
| cFYI(1, ("\nIn FindUnique")); |
| rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| (void **) &pSMBr); |
| if (rc) |
| return rc; |
| |
| if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| name_len = |
| cifs_strtoUCS((wchar_t *) pSMB->FileName, searchName, 530 |
| /* find define for this maxpathcomponent */ |
| , nls_codepage); |
| name_len++; /* trailing null */ |
| name_len *= 2; |
| } else { /* BB improve the check for buffer overruns BB */ |
| |
| name_len = strnlen(searchName, 530); |
| name_len++; /* trailing null */ |
| strncpy(pSMB->FileName, searchName, name_len); |
| } |
| |
| pSMB->TotalParameterCount = 12 + name_len /* includes null */ ; |
| pSMB->TotalDataCount = 0; /* no EAs */ |
| pSMB->MaxParameterCount = cpu_to_le16(2); |
| pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ |
| pSMB->MaxSetupCount = 0; |
| pSMB->Reserved = 0; |
| pSMB->Flags = 0; |
| pSMB->Timeout = 0; |
| pSMB->Reserved2 = 0; |
| pSMB->ParameterOffset = cpu_to_le16( |
| offsetof(struct smb_com_transaction2_ffirst_req,InformationLevel) - 4); |
| pSMB->DataCount = 0; |
| pSMB->DataOffset = 0; |
| pSMB->SetupCount = 1; /* one byte, no need to le convert */ |
| pSMB->Reserved3 = 0; |
| pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_FIRST); |
| pSMB->ByteCount = pSMB->TotalParameterCount + 1 /* pad */ ; |
| pSMB->TotalParameterCount = cpu_to_le16(pSMB->TotalDataCount); |
| pSMB->ParameterCount = pSMB->TotalParameterCount; |
| pSMB->SearchAttributes = |
| cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | |
| ATTR_DIRECTORY); |
| pSMB->SearchCount = cpu_to_le16(16); /* BB increase */ |
| pSMB->SearchFlags = cpu_to_le16(1); |
| pSMB->InformationLevel = cpu_to_le16(SMB_FIND_FILE_DIRECTORY_INFO); |
| pSMB->SearchStorageType = 0; /* BB what should we set this to? BB */ |
| pSMB->hdr.smb_buf_length += pSMB->ByteCount; |
| pSMB->ByteCount = cpu_to_le16(pSMB->ByteCount); |
| |
| rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| |
| if (rc) { |
| cFYI(1, ("\nSend error in FindFileDirInfo = %d\n", rc)); |
| } else { /* decode response */ |
| |
| /* BB fill in */ |
| } |
| if (pSMB) |
| buf_release(pSMB); |
| return rc; |
| } |
| |
| int |
| CIFSFindFirst(const int xid, const struct cifsTconInfo *tcon, |
| const char *searchName, FILE_DIRECTORY_INFO * findData, |
| T2_FFIRST_RSP_PARMS * findParms, |
| const struct nls_table *nls_codepage, int *pUnicodeFlag, |
| int *pUnixFlag) |
| { |
| /* level 257 SMB_ */ |
| TRANSACTION2_FFIRST_REQ *pSMB = NULL; |
| TRANSACTION2_FFIRST_RSP *pSMBr = NULL; |
| char *response_data; |
| int rc = 0; |
| int bytes_returned; |
| int name_len; |
| |
| cFYI(1, ("\nIn FindFirst")); |
| rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| (void **) &pSMBr); |
| if (rc) |
| return rc; |
| |
| if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| name_len = |
| cifs_strtoUCS((wchar_t *) pSMB->FileName, searchName, 530 |
| /* find define for this maxpathcomponent */ |
| , nls_codepage); |
| name_len++; /* trailing null */ |
| name_len *= 2; |
| } else { /* BB improve the check for buffer overruns BB */ |
| |
| name_len = strnlen(searchName, 530); |
| name_len++; /* trailing null */ |
| strncpy(pSMB->FileName, searchName, name_len); |
| } |
| |
| pSMB->TotalParameterCount = 12 + name_len /* includes null */ ; |
| pSMB->TotalDataCount = 0; /* no EAs */ |
| pSMB->MaxParameterCount = cpu_to_le16(10); |
| pSMB->MaxDataCount = cpu_to_le16((tcon->ses->maxBuf - |
| MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); |
| pSMB->MaxSetupCount = 0; |
| pSMB->Reserved = 0; |
| pSMB->Flags = 0; |
| pSMB->Timeout = 0; |
| pSMB->Reserved2 = 0; |
| pSMB->ByteCount = pSMB->TotalParameterCount + 1 /* pad */ ; |
| pSMB->TotalParameterCount = cpu_to_le16(pSMB->TotalParameterCount); |
| pSMB->ParameterCount = pSMB->TotalParameterCount; |
| pSMB->ParameterOffset = cpu_to_le16(offsetof(struct |
| smb_com_transaction2_ffirst_req, SearchAttributes) - 4); |
| pSMB->DataCount = 0; |
| pSMB->DataOffset = 0; |
| pSMB->SetupCount = 1; /* one byte no need to make endian neutral */ |
| pSMB->Reserved3 = 0; |
| pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_FIRST); |
| pSMB->SearchAttributes = |
| cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | |
| ATTR_DIRECTORY); |
| pSMB->SearchCount = cpu_to_le16(CIFS_MAX_MSGSIZE / sizeof (FILE_DIRECTORY_INFO)); /* should this be shrunk even more ? */ |
| pSMB->SearchFlags = cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END); |
| |
| /* test for Unix extensions */ |
| if (tcon->ses->capabilities & CAP_UNIX) { |
| pSMB->InformationLevel = cpu_to_le16(SMB_FIND_FILE_UNIX); |
| *pUnixFlag = TRUE; |
| } else { |
| pSMB->InformationLevel = |
| cpu_to_le16(SMB_FIND_FILE_DIRECTORY_INFO); |
| *pUnixFlag = FALSE; |
| } |
| pSMB->SearchStorageType = 0; /* BB what should we set this to? It is not clear if it matters BB */ |
| pSMB->hdr.smb_buf_length += pSMB->ByteCount; |
| pSMB->ByteCount = cpu_to_le16(pSMB->ByteCount); |
| |
| rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| |
| if (rc) { /* BB add logic to retry regular search if Unix search rejected unexpectedly by server */ |
| cFYI(1, ("\nError in FindFirst = %d\n", rc)); |
| } else { /* decode response */ |
| /* BB add safety checks for these memcpys */ |
| if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) |
| *pUnicodeFlag = TRUE; |
| else |
| *pUnicodeFlag = FALSE; |
| memcpy(findParms, |
| (char *) &pSMBr->hdr.Protocol + |
| le16_to_cpu(pSMBr->ParameterOffset), |
| sizeof (T2_FFIRST_RSP_PARMS)); |
| /* search handle can stay LE and EAoffset not needed so not converted */ |
| findParms->EndofSearch = le16_to_cpu(findParms->EndofSearch); |
| findParms->LastNameOffset = |
| le16_to_cpu(findParms->LastNameOffset); |
| findParms->SearchCount = le16_to_cpu(findParms->SearchCount); |
| response_data = |
| (char *) &pSMBr->hdr.Protocol + |
| le16_to_cpu(pSMBr->DataOffset); |
| memcpy(findData, response_data, le16_to_cpu(pSMBr->DataCount)); |
| } |
| if (pSMB) |
| buf_release(pSMB); |
| return rc; |
| } |
| |
| int |
| CIFSFindNext(const int xid, const struct cifsTconInfo *tcon, |
| FILE_DIRECTORY_INFO * findData, |
| T2_FNEXT_RSP_PARMS * findParms, const __u16 searchHandle, |
| __u32 resumeKey, int *pUnicodeFlag, int *pUnixFlag) |
| { |
| /* level 257 SMB_ */ |
| TRANSACTION2_FNEXT_REQ *pSMB = NULL; |
| TRANSACTION2_FNEXT_RSP *pSMBr = NULL; |
| char *response_data; |
| int rc = 0; |
| int bytes_returned; |
| |
| cFYI(1, ("\nIn FindNext")); |
| rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| (void **) &pSMBr); |
| if (rc) |
| return rc; |
| |
| pSMB->TotalParameterCount = 14; /* includes 2 bytes of null string, converted to LE below */ |
| pSMB->TotalDataCount = 0; /* no EAs */ |
| pSMB->MaxParameterCount = cpu_to_le16(8); |
| pSMB->MaxDataCount = |
| cpu_to_le16((tcon->ses->maxBuf - MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); |
| pSMB->MaxSetupCount = 0; |
| pSMB->Reserved = 0; |
| pSMB->Flags = 0; |
| pSMB->Timeout = 0; |
| pSMB->Reserved2 = 0; |
| pSMB->ParameterOffset = cpu_to_le16(offsetof( |
| struct smb_com_transaction2_fnext_req,SearchHandle) - 4); |
| pSMB->DataCount = 0; |
| pSMB->DataOffset = 0; |
| pSMB->SetupCount = 1; |
| pSMB->Reserved3 = 0; |
| pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_NEXT); |
| pSMB->ByteCount = pSMB->TotalParameterCount + 1 /* pad */ ; |
| pSMB->TotalParameterCount = cpu_to_le16(pSMB->TotalParameterCount); |
| pSMB->ParameterCount = pSMB->TotalParameterCount; |
| pSMB->SearchHandle = searchHandle; /* always kept as le */ |
| findParms->SearchCount = 0; /* set to zero in case of error */ |
| pSMB->SearchCount = |
| cpu_to_le16(CIFS_MAX_MSGSIZE / sizeof (FILE_DIRECTORY_INFO)); |
| /* test for Unix extensions */ |
| if (tcon->ses->capabilities & CAP_UNIX) { |
| pSMB->InformationLevel = cpu_to_le16(SMB_FIND_FILE_UNIX); |
| *pUnixFlag = TRUE; |
| } else { |
| pSMB->InformationLevel = |
| cpu_to_le16(SMB_FIND_FILE_DIRECTORY_INFO); |
| *pUnixFlag = FALSE; |
| } |
| pSMB->ResumeKey = resumeKey; /* always kept as le */ |
| pSMB->SearchFlags = |
| cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END | |
| CIFS_SEARCH_CONTINUE_FROM_LAST); |
| pSMB->hdr.smb_buf_length += pSMB->ByteCount; |
| pSMB->ByteCount = cpu_to_le16(pSMB->ByteCount); |
| |
| rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| |
| if (rc) { |
| if (rc == -EBADF) |
| rc = 0; /* search probably was closed at end of search above */ |
| else |
| cFYI(1, ("\nFindNext returned = %d\n", rc)); |
| } else { /* decode response */ |
| /* BB add safety checks for these memcpys */ |
| if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) |
| *pUnicodeFlag = TRUE; |
| else |
| *pUnicodeFlag = FALSE; |
| memcpy(findParms, |
| (char *) &pSMBr->hdr.Protocol + |
| le16_to_cpu(pSMBr->ParameterOffset), |
| sizeof (T2_FNEXT_RSP_PARMS)); |
| findParms->EndofSearch = le16_to_cpu(findParms->EndofSearch); |
| findParms->LastNameOffset = |
| le16_to_cpu(findParms->LastNameOffset); |
| findParms->SearchCount = le16_to_cpu(findParms->SearchCount); |
| response_data = |
| (char *) &pSMBr->hdr.Protocol + |
| le16_to_cpu(pSMBr->DataOffset); |
| memcpy(findData, response_data, le16_to_cpu(pSMBr->DataCount)); |
| } |
| if (pSMB) |
| buf_release(pSMB); |
| return rc; |
| } |
| |
| int |
| CIFSGetDFSRefer(const int xid, struct cifsSesInfo *ses, |
| const unsigned char *searchName, |
| unsigned char **targetUNCs, |
| int *number_of_UNC_in_array, |
| const struct nls_table *nls_codepage) |
| { |
| /* TRANS2_GET_DFS_REFERRAL */ |
| TRANSACTION2_GET_DFS_REFER_REQ *pSMB = NULL; |
| TRANSACTION2_GET_DFS_REFER_RSP *pSMBr = NULL; |
| int rc = 0; |
| int bytes_returned; |
| int name_len; |
| *number_of_UNC_in_array = 0; |
| *targetUNCs = NULL; |
| |
| cFYI(1, ("\nIn GetDFSRefer the path %s", searchName)); |
| if (ses == NULL) |
| return -ENODEV; |
| |
| rc = smb_init(SMB_COM_TRANSACTION2, 15, 0, (void **) &pSMB, |
| (void **) &pSMBr); |
| if (rc) |
| return rc; |
| |
| pSMB->hdr.Tid = ses->ipc_tid; |
| pSMB->hdr.Uid = ses->Suid; |
| if (ses->capabilities & CAP_STATUS32) { |
| pSMB->hdr.Flags2 |= SMBFLG2_ERR_STATUS; |
| } |
| if (ses->capabilities & CAP_DFS) { |
| pSMB->hdr.Flags2 |= SMBFLG2_DFS; |
| } |
| if(ses->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) |
| pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE; |
| |
| if (ses->capabilities & CAP_UNICODE) { |
| pSMB->hdr.Flags2 |= SMBFLG2_UNICODE; |
| name_len = |
| cifs_strtoUCS((wchar_t *) pSMB->RequestFileName, |
| searchName, 530 |
| /* find define for this maxpathcomponent */ |
| , nls_codepage); |
| name_len++; /* trailing null */ |
| name_len *= 2; |
| } else { /* BB improve the check for buffer overruns BB */ |
| |
| name_len = strnlen(searchName, 530); |
| name_len++; /* trailing null */ |
| strncpy(pSMB->RequestFileName, searchName, name_len); |
| } |
| |
| pSMB->ParameterCount = 2 /* level */ + name_len /*includes null */ ; |
| pSMB->TotalDataCount = 0; |
| pSMB->DataCount = 0; |
| pSMB->DataOffset = 0; |
| pSMB->MaxParameterCount = 0; |
| pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ |
| pSMB->MaxSetupCount = 0; |
| pSMB->Reserved = 0; |
| pSMB->Flags = 0; |
| pSMB->Timeout = 0; |
| pSMB->Reserved2 = 0; |
| pSMB->ParameterOffset = cpu_to_le16(offsetof( |
| struct smb_com_transaction2_get_dfs_refer_req, MaxReferralLevel) - 4); |
| pSMB->SetupCount = 1; |
| pSMB->Reserved3 = 0; |
| pSMB->SubCommand = cpu_to_le16(TRANS2_GET_DFS_REFERRAL); |
| pSMB->ByteCount = pSMB->ParameterCount + 3 /* pad */ ; |
| pSMB->ParameterCount = cpu_to_le16(pSMB->ParameterCount); |
| pSMB->TotalParameterCount = pSMB->ParameterCount; |
| pSMB->MaxReferralLevel = cpu_to_le16(3); |
| pSMB->hdr.smb_buf_length += pSMB->ByteCount; |
| pSMB->ByteCount = cpu_to_le16(pSMB->ByteCount); |
| |
| rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, |
| (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| if (rc) { |
| cFYI(1, ("\nSend error in GetDFSRefer = %d\n", rc)); |
| } else { /* decode response */ |
| /* BB Add logic to parse referrals here */ |
| } |
| if (pSMB) |
| buf_release(pSMB); |
| return rc; |
| } |
| |
| int |
| CIFSSMBQFSInfo(const int xid, const struct cifsTconInfo *tcon, |
| struct statfs *FSData, const struct nls_table *nls_codepage) |
| { |
| /* level 0x103 SMB_QUERY_FILE_SYSTEM_INFO */ |
| TRANSACTION2_QFSI_REQ *pSMB = NULL; |
| TRANSACTION2_QFSI_RSP *pSMBr = NULL; |
| FILE_SYSTEM_INFO *response_data; |
| int rc = 0; |
| int bytes_returned = 0; |
| |
| cFYI(1, ("\nIn QFSInfo")); |
| |
| rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| (void **) &pSMBr); |
| if (rc) |
| return rc; |
| |
| pSMB->TotalParameterCount = 2; /* level */ |
| pSMB->TotalDataCount = 0; |
| pSMB->MaxParameterCount = cpu_to_le16(2); |
| pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */ |
| pSMB->MaxSetupCount = 0; |
| pSMB->Reserved = 0; |
| pSMB->Flags = 0; |
| pSMB->Timeout = 0; |
| pSMB->Reserved2 = 0; |
| pSMB->ByteCount = pSMB->TotalParameterCount + 1 /* pad */ ; |
| pSMB->TotalParameterCount = cpu_to_le16(pSMB->TotalParameterCount); |
| pSMB->ParameterCount = pSMB->TotalParameterCount; |
| pSMB->ParameterOffset = cpu_to_le16(offsetof( |
| struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
| pSMB->DataCount = 0; |
| pSMB->DataOffset = 0; |
| pSMB->SetupCount = 1; |
| pSMB->Reserved3 = 0; |
| pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); |
| pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_SIZE_INFO); |
| pSMB->hdr.smb_buf_length += pSMB->ByteCount; |
| pSMB->ByteCount = cpu_to_le16(pSMB->ByteCount); |
| |
| rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| if (rc) { |
| cERROR(1, ("\nSend error in QFSInfo = %d\n", rc)); |
| } else { /* decode response */ |
| pSMBr->DataOffset = le16_to_cpu(pSMBr->DataOffset); |
| cFYI(1, |
| ("\nDecoding qfsinfo response. BCC: %d Offset %d\n", |
| pSMBr->ByteCount, pSMBr->DataOffset)); |
| if ((pSMBr->ByteCount < 24) || (pSMBr->DataOffset > 512)) /* BB also check enough total bytes returned */ |
| rc = -EIO; /* bad smb */ |
| else { |
| response_data = |
| (FILE_SYSTEM_INFO |
| *) (((char *) &pSMBr->hdr.Protocol) + |
| pSMBr->DataOffset); |
| FSData->f_bsize = |
| le32_to_cpu(response_data->BytesPerSector) * |
| le32_to_cpu(response_data-> |
| SectorsPerAllocationUnit); |
| FSData->f_blocks = |
| le64_to_cpu(response_data->TotalAllocationUnits); |
| FSData->f_bfree = FSData->f_bavail = |
| le64_to_cpu(response_data->FreeAllocationUnits); |
| cFYI(1, |
| ("\nBlocks: %ld Free: %ld Block size %ld\n", |
| FSData->f_blocks, FSData->f_bfree, |
| FSData->f_bsize)); |
| } |
| } |
| if (pSMB) |
| buf_release(pSMB); |
| return rc; |
| } |
| |
| int |
| CIFSSMBQFSAttributeInfo(int xid, struct cifsTconInfo *tcon, |
| const struct nls_table *nls_codepage) |
| { |
| /* level 0x105 SMB_QUERY_FILE_SYSTEM_INFO */ |
| TRANSACTION2_QFSI_REQ *pSMB = NULL; |
| TRANSACTION2_QFSI_RSP *pSMBr = NULL; |
| FILE_SYSTEM_ATTRIBUTE_INFO *response_data; |
| int rc = 0; |
| int bytes_returned = 0; |
| |
| cFYI(1, ("\nIn QFSAttributeInfo")); |
| rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| (void **) &pSMBr); |
| if (rc) |
| return rc; |
| |
| pSMB->TotalParameterCount = 2; /* level */ |
| pSMB->TotalDataCount = 0; |
| pSMB->MaxParameterCount = cpu_to_le16(2); |
| pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */ |
| pSMB->MaxSetupCount = 0; |
| pSMB->Reserved = 0; |
| pSMB->Flags = 0; |
| pSMB->Timeout = 0; |
| pSMB->Reserved2 = 0; |
| pSMB->ByteCount = pSMB->TotalParameterCount + 1 /* pad */ ; |
| pSMB->TotalParameterCount = cpu_to_le16(pSMB->TotalParameterCount); |
| pSMB->ParameterCount = pSMB->TotalParameterCount; |
| pSMB->ParameterOffset = cpu_to_le16(offsetof( |
| struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
| pSMB->DataCount = 0; |
| pSMB->DataOffset = 0; |
| pSMB->SetupCount = 1; |
| pSMB->Reserved3 = 0; |
| pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); |
| pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_ATTRIBUTE_INFO); |
| pSMB->hdr.smb_buf_length += pSMB->ByteCount; |
| pSMB->ByteCount = cpu_to_le16(pSMB->ByteCount); |
| |
| rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| if (rc) { |
| cERROR(1, ("\nSend error in QFSAttributeInfo = %d\n", rc)); |
| } else { /* decode response */ |
| pSMBr->DataOffset = le16_to_cpu(pSMBr->DataOffset); |
| if ((pSMBr->ByteCount < 13) || (pSMBr->DataOffset > 512)) { /* BB also check enough bytes returned */ |
| rc = -EIO; /* bad smb */ |
| } else { |
| response_data = |
| (FILE_SYSTEM_ATTRIBUTE_INFO |
| *) (((char *) &pSMBr->hdr.Protocol) + |
| pSMBr->DataOffset); |
| memcpy(&tcon->fsAttrInfo, response_data, |
| sizeof (FILE_SYSTEM_ATTRIBUTE_INFO)); |
| } |
| } |
| if (pSMB) |
| buf_release(pSMB); |
| return rc; |
| } |
| |
| int |
| CIFSSMBQFSDeviceInfo(int xid, struct cifsTconInfo *tcon, |
| const struct nls_table *nls_codepage) |
| { |
| /* level 0x104 SMB_QUERY_FILE_SYSTEM_INFO */ |
| TRANSACTION2_QFSI_REQ *pSMB = NULL; |
| TRANSACTION2_QFSI_RSP *pSMBr = NULL; |
| FILE_SYSTEM_DEVICE_INFO *response_data; |
| int rc = 0; |
| int bytes_returned = 0; |
| |
| cFYI(1, ("\nIn QFSDeviceInfo")); |
| |
| rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| (void **) &pSMBr); |
| if (rc) |
| return rc; |
| |
| pSMB->TotalParameterCount = 2; /* level */ |
| pSMB->TotalDataCount = 0; |
| pSMB->MaxParameterCount = cpu_to_le16(2); |
| pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */ |
| pSMB->MaxSetupCount = 0; |
| pSMB->Reserved = 0; |
| pSMB->Flags = 0; |
| pSMB->Timeout = 0; |
| pSMB->Reserved2 = 0; |
| pSMB->ByteCount = pSMB->TotalParameterCount + 1 /* pad */ ; |
| pSMB->TotalParameterCount = cpu_to_le16(pSMB->TotalParameterCount); |
| pSMB->ParameterCount = pSMB->TotalParameterCount; |
| pSMB->ParameterOffset = cpu_to_le16(offsetof( |
| struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
| |
| pSMB->DataCount = 0; |
| pSMB->DataOffset = 0; |
| pSMB->SetupCount = 1; |
| pSMB->Reserved3 = 0; |
| pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); |
| pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_DEVICE_INFO); |
| pSMB->hdr.smb_buf_length += pSMB->ByteCount; |
| pSMB->ByteCount = cpu_to_le16(pSMB->ByteCount); |
| |
| rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| if (rc) { |
| cERROR(1, ("\nSend error in QFSDeviceInfo = %d\n", rc)); |
| } else { /* decode response */ |
| pSMBr->DataOffset = le16_to_cpu(pSMBr->DataOffset); |
| if ((pSMBr->ByteCount < sizeof (FILE_SYSTEM_DEVICE_INFO)) |
| || (pSMBr->DataOffset > 512)) |
| rc = -EIO; /* bad smb */ |
| else { |
| response_data = |
| (FILE_SYSTEM_DEVICE_INFO |
| *) (((char *) &pSMBr->hdr.Protocol) + |
| pSMBr->DataOffset); |
| memcpy(&tcon->fsDevInfo, response_data, |
| sizeof (FILE_SYSTEM_DEVICE_INFO)); |
| } |
| } |
| if (pSMB) |
| buf_release(pSMB); |
| return rc; |
| } |
| |
| int |
| CIFSSMBQFSUnixInfo(int xid, struct cifsTconInfo *tcon, |
| const struct nls_table *nls_codepage) |
| { |
| /* level 0x200 SMB_QUERY_CIFS_UNIX_INFO */ |
| TRANSACTION2_QFSI_REQ *pSMB = NULL; |
| TRANSACTION2_QFSI_RSP *pSMBr = NULL; |
| FILE_SYSTEM_UNIX_INFO *response_data; |
| int rc = 0; |
| int bytes_returned = 0; |
| |
| cFYI(1, ("\nIn QFSUnixInfo")); |
| rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| (void **) &pSMBr); |
| if (rc) |
| return rc; |
| |
| pSMB->ParameterCount = 2; /* level */ |
| pSMB->TotalDataCount = 0; |
| pSMB->DataCount = 0; |
| pSMB->DataOffset = 0; |
| pSMB->MaxParameterCount = cpu_to_le16(2); |
| pSMB->MaxDataCount = cpu_to_le16(100); /* BB find exact max SMB PDU from sess structure BB */ |
| pSMB->MaxSetupCount = 0; |
| pSMB->Reserved = 0; |
| pSMB->Flags = 0; |
| pSMB->Timeout = 0; |
| pSMB->Reserved2 = 0; |
| pSMB->ByteCount = pSMB->ParameterCount + 1 /* pad */ ; |
| pSMB->ParameterCount = cpu_to_le16(pSMB->ParameterCount); |
| pSMB->TotalParameterCount = pSMB->ParameterCount; |
| pSMB->ParameterOffset = cpu_to_le16(offsetof(struct |
| smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
| pSMB->SetupCount = 1; |
| pSMB->Reserved3 = 0; |
| pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); |
| pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_CIFS_UNIX_INFO); |
| pSMB->hdr.smb_buf_length += pSMB->ByteCount; |
| pSMB->ByteCount = cpu_to_le16(pSMB->ByteCount); |
| |
| rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| if (rc) { |
| cERROR(1, ("\nSend error in QFSUnixInfo = %d\n", rc)); |
| } else { /* decode response */ |
| pSMBr->DataOffset = cpu_to_le16(pSMBr->DataOffset); |
| if ((pSMBr->ByteCount < 13) || (pSMBr->DataOffset > 512)) { |
| rc = -EIO; /* bad smb */ |
| } else { |
| response_data = |
| (FILE_SYSTEM_UNIX_INFO |
| *) (((char *) &pSMBr->hdr.Protocol) + |
| pSMBr->DataOffset); |
| memcpy(&tcon->fsUnixInfo, response_data, |
| sizeof (FILE_SYSTEM_UNIX_INFO)); |
| } |
| } |
| if (pSMB) |
| buf_release(pSMB); |
| return rc; |
| } |
| |
| /* We can not use write of zero bytes trick to |
| set file size due to need for large file support. Also note that |
| this SetPathInfo is preferred to SetFileInfo based method in next |
| routine which is only needed to work around a sharing violation bug |
| in Samba which this routine can run into */ |
| |
| int |
| CIFSSMBSetEOF(int xid, struct cifsTconInfo *tcon, char *fileName, |
| __u64 size, int SetAllocation, const struct nls_table *nls_codepage) |
| { |
| struct smb_com_transaction2_spi_req *pSMB = NULL; |
| struct smb_com_transaction2_spi_rsp *pSMBr = NULL; |
| struct file_end_of_file_info *parm_data; |
| int name_len; |
| int rc = 0; |
| int bytes_returned = 0; |
| |
| cFYI(1, ("\nIn SetEOF")); |
| |
| rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| (void **) &pSMBr); |
| if (rc) |
| return rc; |
| |
| if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| name_len = |
| cifs_strtoUCS((wchar_t *) pSMB->FileName, fileName, 530 |
| /* find define for this maxpathcomponent */ |
| , nls_codepage); |
| name_len++; /* trailing null */ |
| name_len *= 2; |
| } else { /* BB improve the check for buffer overruns BB */ |
| |
| name_len = strnlen(fileName, 530); |
| name_len++; /* trailing null */ |
| strncpy(pSMB->FileName, fileName, name_len); |
| } |
| pSMB->ParameterCount = 6 + name_len; |
| pSMB->DataCount = sizeof (struct file_end_of_file_info); |
| pSMB->MaxParameterCount = cpu_to_le16(2); |
| pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB size from sess */ |
| pSMB->MaxSetupCount = 0; |
| pSMB->Reserved = 0; |
| pSMB->Flags = 0; |
| pSMB->Timeout = 0; |
| pSMB->Reserved2 = 0; |
| pSMB->ParameterOffset = offsetof(struct smb_com_transaction2_spi_req, |
| InformationLevel) - 4; |
| pSMB->DataOffset = pSMB->ParameterOffset + pSMB->ParameterCount; |
| if(SetAllocation) { |
| if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
| pSMB->InformationLevel = |
| cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); |
| else |
| pSMB->InformationLevel = |
| cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO); |
| } else /* Set File Size */ { |
| if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
| pSMB->InformationLevel = |
| cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); |
| else |
| pSMB->InformationLevel = |
| cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); |
| } |
| |
| parm_data = |
| (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) + |
| pSMB->DataOffset); |
| pSMB->ParameterOffset = cpu_to_le16(pSMB->ParameterOffset); |
| pSMB->DataOffset = cpu_to_le16(pSMB->DataOffset); |
| pSMB->SetupCount = 1; |
| pSMB->Reserved3 = 0; |
| pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); |
| pSMB->ByteCount = 3 /* pad */ + pSMB->ParameterCount + pSMB->DataCount; |
| pSMB->DataCount = cpu_to_le16(pSMB->DataCount); |
| pSMB->TotalDataCount = pSMB->DataCount; |
| pSMB->ParameterCount = cpu_to_le16(pSMB->ParameterCount); |
| pSMB->TotalParameterCount = pSMB->ParameterCount; |
| pSMB->Reserved4 = 0; |
| pSMB->hdr.smb_buf_length += pSMB->ByteCount; |
| parm_data->FileSize = cpu_to_le64(size); |
| pSMB->ByteCount = cpu_to_le16(pSMB->ByteCount); |
| rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| if (rc) { |
| cFYI(1, ("\nSetPathInfo (file size) returned %d\n", rc)); |
| } |
| |
| if (pSMB) |
| buf_release(pSMB); |
| return rc; |
| } |
| |
| int |
| CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size, |
| __u16 fid, __u32 pid_of_opener, int SetAllocation) |
| { |
| struct smb_com_transaction2_sfi_req *pSMB = NULL; |
| struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; |
| char *data_offset; |
| struct file_end_of_file_info *parm_data; |
| int rc = 0; |
| int bytes_returned = 0; |
| __u32 tmp; |
| |
| cFYI(1, ("\nSetFileSize (via SetFileInfo)")); |
| |
| rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| (void **) &pSMBr); |
| if (rc) |
| return rc; |
| |
| tmp = cpu_to_le32(pid_of_opener); /* override pid of current process |
| so network fid will be valid */ |
| pSMB->hdr.Pid = tmp & 0xFFFF; |
| tmp >>= 16; |
| pSMB->hdr.PidHigh = tmp & 0xFFFF; |
| |
| pSMB->ParameterCount = 6; |
| pSMB->MaxSetupCount = 0; |
| pSMB->Reserved = 0; |
| pSMB->Flags = 0; |
| pSMB->Timeout = 0; |
| pSMB->Reserved2 = 0; |
| pSMB->ParameterOffset = offsetof(struct smb_com_transaction2_sfi_req, |
| Fid) - 4; |
| pSMB->DataOffset = pSMB->ParameterOffset + pSMB->ParameterCount; |
| |
| data_offset = (char *) (&pSMB->hdr.Protocol) + pSMB->DataOffset; |
| |
| pSMB->DataCount = sizeof(struct file_end_of_file_info); |
| pSMB->MaxParameterCount = cpu_to_le16(2); |
| pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */ |
| pSMB->SetupCount = 1; |
| pSMB->Reserved3 = 0; |
| pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); |
| pSMB->ByteCount = 3 /* pad */ + pSMB->ParameterCount + pSMB->DataCount; |
| pSMB->DataCount = cpu_to_le16(pSMB->DataCount); |
| pSMB->ParameterCount = cpu_to_le16(pSMB->ParameterCount); |
| pSMB->TotalDataCount = pSMB->DataCount; |
| pSMB->TotalParameterCount = pSMB->ParameterCount; |
| pSMB->ParameterOffset = cpu_to_le16(pSMB->ParameterOffset); |
| pSMB->DataOffset = cpu_to_le16(pSMB->DataOffset); |
| parm_data = |
| (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) + |
| pSMB->DataOffset); |
| parm_data->FileSize = size; |
| pSMB->Fid = fid; |
| if(SetAllocation) { |
| if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
| pSMB->InformationLevel = |
| cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); |
| else |
| pSMB->InformationLevel = |
| cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO); |
| } else /* Set File Size */ { |
| if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
| pSMB->InformationLevel = |
| cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); |
| else |
| pSMB->InformationLevel = |
| cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); |
| } |
| pSMB->Reserved4 = 0; |
| pSMB->hdr.smb_buf_length += pSMB->ByteCount; |
| pSMB->ByteCount = cpu_to_le16(pSMB->ByteCount); |
| rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| if (rc) { |
| cFYI(1, |
| ("\nSend error in SetFileInfo (SetFileSize) = %d\n", |
| rc)); |
| } |
| |
| if (pSMB) |
| buf_release(pSMB); |
| return rc; |
| } |
| |
| int |
| CIFSSMBSetTimes(int xid, struct cifsTconInfo *tcon, char *fileName, |
| FILE_BASIC_INFO * data, const struct nls_table *nls_codepage) |
| { |
| TRANSACTION2_SPI_REQ *pSMB = NULL; |
| TRANSACTION2_SPI_RSP *pSMBr = NULL; |
| int name_len; |
| int rc = 0; |
| int bytes_returned = 0; |
| char *data_offset; |
| |
| cFYI(1, ("\nIn SetTimes")); |
| |
| rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| (void **) &pSMBr); |
| if (rc) |
| return rc; |
| |
| if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| name_len = |
| cifs_strtoUCS((wchar_t *) pSMB->FileName, fileName, 530 |
| /* find define for this maxpathcomponent */ |
| , nls_codepage); |
| name_len++; /* trailing null */ |
| name_len *= 2; |
| } else { /* BB improve the check for buffer overruns BB */ |
| |
| name_len = strnlen(fileName, 530); |
| name_len++; /* trailing null */ |
| strncpy(pSMB->FileName, fileName, name_len); |
| } |
| |
| pSMB->ParameterCount = 6 + name_len; |
| pSMB->DataCount = sizeof (FILE_BASIC_INFO); |
| pSMB->MaxParameterCount = cpu_to_le16(2); |
| pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */ |
| pSMB->MaxSetupCount = 0; |
| pSMB->Reserved = 0; |
| pSMB->Flags = 0; |
| pSMB->Timeout = 0; |
| pSMB->Reserved2 = 0; |
| pSMB->ParameterOffset = offsetof(struct smb_com_transaction2_spi_req, |
| InformationLevel) - 4; |
| pSMB->DataOffset = pSMB->ParameterOffset + pSMB->ParameterCount; |
| data_offset = (char *) (&pSMB->hdr.Protocol) + pSMB->DataOffset; |
| pSMB->ParameterOffset = cpu_to_le16(pSMB->ParameterOffset); |
| pSMB->DataOffset = cpu_to_le16(pSMB->DataOffset); |
| pSMB->SetupCount = 1; |
| pSMB->Reserved3 = 0; |
| pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); |
| pSMB->ByteCount = 3 /* pad */ + pSMB->ParameterCount + pSMB->DataCount; |
| |
| pSMB->DataCount = cpu_to_le16(pSMB->DataCount); |
| pSMB->ParameterCount = cpu_to_le16(pSMB->ParameterCount); |
| pSMB->TotalDataCount = pSMB->DataCount; |
| pSMB->TotalParameterCount = pSMB->ParameterCount; |
| if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
| pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO2); |
| else |
| pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO); |
| pSMB->Reserved4 = 0; |
| pSMB->hdr.smb_buf_length += pSMB->ByteCount; |
| memcpy(data_offset, data, sizeof (FILE_BASIC_INFO)); |
| pSMB->ByteCount = cpu_to_le16(pSMB->ByteCount); |
| rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| if (rc) { |
| cFYI(1, ("\nSetPathInfo (times) returned %d\n", rc)); |
| } |
| |
| if (pSMB) |
| buf_release(pSMB); |
| return rc; |
| } |
| |
| int |
| CIFSSMBUnixSetPerms(const int xid, struct cifsTconInfo *tcon, |
| char *fileName, __u64 mode, __u64 uid, __u64 gid, |
| const struct nls_table *nls_codepage) |
| { |
| TRANSACTION2_SPI_REQ *pSMB = NULL; |
| TRANSACTION2_SPI_RSP *pSMBr = NULL; |
| int name_len; |
| int rc = 0; |
| int bytes_returned = 0; |
| FILE_UNIX_BASIC_INFO *data_offset; |
| |
| cFYI(1, ("\nIn SetUID/GID/Mode")); |
| |
| rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| (void **) &pSMBr); |
| if (rc) |
| return rc; |
| |
| if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| name_len = |
| cifs_strtoUCS((wchar_t *) pSMB->FileName, fileName, 530 |
| /* find define for this maxpathcomponent */ |
| , nls_codepage); |
| name_len++; /* trailing null */ |
| name_len *= 2; |
| } else { /* BB improve the check for buffer overruns BB */ |
| |
| name_len = strnlen(fileName, 530); |
| name_len++; /* trailing null */ |
| strncpy(pSMB->FileName, fileName, name_len); |
| } |
| |
| pSMB->ParameterCount = 6 + name_len; |
| pSMB->DataCount = sizeof (FILE_UNIX_BASIC_INFO); |
| pSMB->MaxParameterCount = cpu_to_le16(2); |
| pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */ |
| pSMB->MaxSetupCount = 0; |
| pSMB->Reserved = 0; |
| pSMB->Flags = 0; |
| pSMB->Timeout = 0; |
| pSMB->Reserved2 = 0; |
| pSMB->ParameterOffset = offsetof(struct smb_com_transaction2_spi_req, |
| InformationLevel) - 4; |
| pSMB->DataOffset = pSMB->ParameterOffset + pSMB->ParameterCount; |
| data_offset = |
| (FILE_UNIX_BASIC_INFO *) ((char *) &pSMB->hdr.Protocol + |
| pSMB->DataOffset); |
| pSMB->DataOffset = cpu_to_le16(pSMB->DataOffset); |
| pSMB->ParameterOffset = cpu_to_le16(pSMB->ParameterOffset); |
| pSMB->SetupCount = 1; |
| pSMB->Reserved3 = 0; |
| pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); |
| pSMB->ByteCount = 3 /* pad */ + pSMB->ParameterCount + pSMB->DataCount; |
| pSMB->ParameterCount = cpu_to_le16(pSMB->ParameterCount); |
| pSMB->DataCount = cpu_to_le16(pSMB->DataCount); |
| pSMB->TotalParameterCount = pSMB->ParameterCount; |
| pSMB->TotalDataCount = pSMB->DataCount; |
| pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_BASIC); |
| pSMB->Reserved4 = 0; |
| pSMB->hdr.smb_buf_length += pSMB->ByteCount; |
| data_offset->Uid = cpu_to_le64(uid); |
| data_offset->Gid = cpu_to_le64(gid); |
| data_offset->Permissions = cpu_to_le64(mode); |
| pSMB->ByteCount = cpu_to_le16(pSMB->ByteCount); |
| rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| if (rc) { |
| cFYI(1, ("\nSetPathInfo (perms) returned %d\n", rc)); |
| } |
| |
| if (pSMB) |
| buf_release(pSMB); |
| return rc; |
| } |