patch-2_6_7-vs1_9_1_12
[linux-2.6.git] / fs / cifs / cifssmb.c
index b4da800..420742a 100644 (file)
 #include "cifs_unicode.h"
 #include "cifs_debug.h"
 
+#ifdef CONFIG_CIFS_POSIX
 static struct {
        int index;
        char *name;
 } protocols[] = {
        {CIFS_PROT, "\2NT LM 0.12"}, 
+       {CIFS_PROT, "\2POSIX 2"},
        {BAD_PROT, "\2"}
 };
+#else
+static struct {
+       int index;
+       char *name;
+} protocols[] = {
+       {CIFS_PROT, "\2NT LM 0.12"}, 
+       {BAD_PROT, "\2"}
+};
+#endif
 
 
 /* Mark as invalid, all open files on tree connections since they
@@ -143,7 +154,8 @@ smb_init(int smb_command, int wct, struct cifsTconInfo *tcon,
                return rc;
 
        *request_buf = cifs_buf_get();
-       if (request_buf == 0) {
+       if (*request_buf == 0) {
+               /* BB should we add a retry in here if not a writepage? */
                return -ENOMEM;
        }
     /* Although the original thought was we needed the response buf for  */
@@ -154,6 +166,12 @@ smb_init(int smb_command, int wct, struct cifsTconInfo *tcon,
 
        header_assemble((struct smb_hdr *) *request_buf, smb_command, tcon,
                        wct /*wct */ );
+
+#ifdef CONFIG_CIFS_STATS
+        if(tcon != NULL) {
+                atomic_inc(&tcon->num_smbs_sent);
+        }
+#endif
        return rc;
 }
 
@@ -365,8 +383,11 @@ CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses)
                         smb_buffer_response, &length, 0);
        if (ses->server) {
                atomic_dec(&ses->server->socketUseCount);
-               if (atomic_read(&ses->server->socketUseCount) == 0)
+               if (atomic_read(&ses->server->socketUseCount) == 0) {
+                       spin_lock(&GlobalMid_Lock);
                        ses->server->tcpStatus = CifsExiting;
+                       spin_unlock(&GlobalMid_Lock);
+               }
        }
        if (pSMB)
                cifs_buf_release(pSMB);
@@ -418,7 +439,13 @@ DelFileRetry:
                         (struct smb_hdr *) pSMBr, &bytes_returned, 0);
        if (rc) {
                cFYI(1, ("Error in RMFile = %d", rc));
-       }
+       } 
+#ifdef CONFIG_CIFS_STATS
+        else {
+               atomic_inc(&tcon->num_deletes);
+        }
+#endif
+
        if (pSMB)
                cifs_buf_release(pSMB);
        if (rc == -EAGAIN)
@@ -465,6 +492,12 @@ RmDirRetry:
        if (rc) {
                cFYI(1, ("Error in RMDir = %d", rc));
        }
+#ifdef CONFIG_CIFS_STATS
+        else {
+               atomic_inc(&tcon->num_rmdirs);
+        }
+#endif
+
        if (pSMB)
                cifs_buf_release(pSMB);
        if (rc == -EAGAIN)
@@ -510,6 +543,11 @@ MkDirRetry:
        if (rc) {
                cFYI(1, ("Error in Mkdir = %d", rc));
        }
+#ifdef CONFIG_CIFS_STATS
+        else {
+               atomic_inc(&tcon->num_mkdirs);
+        }
+#endif
        if (pSMB)
                cifs_buf_release(pSMB);
        if (rc == -EAGAIN)
@@ -606,6 +644,10 @@ openRetry:
                    pfile_info->EndOfFile = pSMBr->EndOfFile;
                    pfile_info->NumberOfLinks = cpu_to_le32(1);
                }
+
+#ifdef CONFIG_CIFS_STATS
+               atomic_inc(&tcon->num_opens);
+#endif
        }
        if (pSMB)
                cifs_buf_release(pSMB);
@@ -728,7 +770,7 @@ CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon,
        rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
                         (struct smb_hdr *) pSMBr, &bytes_returned, long_op);
        if (rc) {
-               cERROR(1, ("Send error in write = %d", rc));
+               cFYI(1, ("Send error in write = %d", rc));
                *nbytes = 0;
        } else
                *nbytes = le16_to_cpu(pSMBr->Count);
@@ -792,7 +834,7 @@ CIFSSMBLock(const int xid, struct cifsTconInfo *tcon,
                         (struct smb_hdr *) pSMBr, &bytes_returned, timeout);
 
        if (rc) {
-               cERROR(1, ("Send error in Lock = %d", rc));
+               cFYI(1, ("Send error in Lock = %d", rc));
        }
        if (pSMB)
                cifs_buf_release(pSMB);
@@ -892,7 +934,6 @@ renameRetry:
        }
 
        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);
 
@@ -986,6 +1027,76 @@ int CIFSSMBRenameOpenFile(const int xid,struct cifsTconInfo *pTcon,
        return rc;
 }
 
+int
+CIFSSMBCopy(const int xid, struct cifsTconInfo *tcon, const char * fromName, 
+            const __u16 target_tid, const char *toName, const int flags,
+            const struct nls_table *nls_codepage)
+{
+       int rc = 0;
+       COPY_REQ *pSMB = NULL;
+       COPY_RSP *pSMBr = NULL;
+       int bytes_returned;
+       int name_len, name_len2;
+
+       cFYI(1, ("In CIFSSMBCopy"));
+copyRetry:
+       rc = smb_init(SMB_COM_COPY, 1, tcon, (void **) &pSMB,
+                       (void **) &pSMBr);
+       if (rc)
+               return rc;
+
+       pSMB->BufferFormat = 0x04;
+       pSMB->Tid2 = target_tid;
+
+       if(flags & COPY_TREE)
+               pSMB->Flags |= COPY_TREE;
+       pSMB->Flags = cpu_to_le16(pSMB->Flags);
+
+       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] = 0x04;     /* pad */
+               /* protocol requires ASCII signature byte on Unicode string */
+               pSMB->OldFileName[name_len + 1] = 0x00;
+               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;
+       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, ("Send error in copy = %d with %d files copied",
+                       rc, pSMBr->CopyCount));
+       }
+       if (pSMB)
+               cifs_buf_release(pSMB);
+
+       if (rc == -EAGAIN)
+               goto copyRetry;
+
+       return rc;
+}
 
 int
 CIFSUnixCreateSymLink(const int xid, struct cifsTconInfo *tcon,
@@ -1356,9 +1467,9 @@ CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon,
 
        pSMB->TotalParameterCount = 0 ;
        pSMB->TotalDataCount = 0;
-       pSMB->MaxParameterCount = cpu_to_le16(2);
+       pSMB->MaxParameterCount = cpu_to_le32(2);
        /* BB find exact data count max from sess structure BB */
-       pSMB->MaxDataCount = cpu_to_le16(4000);
+       pSMB->MaxDataCount = cpu_to_le32(4000);
        pSMB->MaxSetupCount = 4;
        pSMB->Reserved = 0;
        pSMB->ParameterOffset = 0;
@@ -1485,6 +1596,8 @@ QPathInfoRetry:
        } else {                /* decode response */
                pSMBr->DataOffset = le16_to_cpu(pSMBr->DataOffset);
                /* BB also check enough total bytes returned */
+               /* BB we need to improve the validity checking
+               of these trans2 responses */
                if ((pSMBr->ByteCount < 40) || (pSMBr->DataOffset > 512)) 
                        rc = -EIO;      /* bad smb */
                else if (pFindData){
@@ -2211,6 +2324,11 @@ QFSAttributeRetry:
                            (FILE_SYSTEM_ATTRIBUTE_INFO
                             *) (((char *) &pSMBr->hdr.Protocol) +
                                 pSMBr->DataOffset);
+                       response_data->Attributes = le32_to_cpu(response_data->Attributes);
+                       response_data->MaxPathNameComponentLength = 
+                               le32_to_cpu(response_data->MaxPathNameComponentLength);
+                       response_data->FileSystemNameLen = 
+                               le32_to_cpu(response_data->FileSystemNameLen);
                        memcpy(&tcon->fsAttrInfo, response_data,
                               sizeof (FILE_SYSTEM_ATTRIBUTE_INFO));
                }
@@ -2280,6 +2398,10 @@ QFSDeviceRetry:
                            (FILE_SYSTEM_DEVICE_INFO
                             *) (((char *) &pSMBr->hdr.Protocol) +
                                 pSMBr->DataOffset);
+                       response_data->DeviceType = 
+                               le32_to_cpu(response_data->DeviceType);
+                       response_data->DeviceCharacteristics = 
+                               le32_to_cpu(response_data->DeviceCharacteristics);
                        memcpy(&tcon->fsDevInfo, response_data,
                               sizeof (FILE_SYSTEM_DEVICE_INFO));
                }
@@ -2290,7 +2412,6 @@ QFSDeviceRetry:
        if (rc == -EAGAIN)
                goto QFSDeviceRetry;
 
-
        return rc;
 }
 
@@ -2348,6 +2469,12 @@ QFSUnixRetry:
                            (FILE_SYSTEM_UNIX_INFO
                             *) (((char *) &pSMBr->hdr.Protocol) +
                                 pSMBr->DataOffset);
+                       response_data->MajorVersionNumber =
+                               le16_to_cpu(response_data->MajorVersionNumber);
+                       response_data->MinorVersionNumber =
+                               le16_to_cpu(response_data->MinorVersionNumber);
+                       response_data->Capability =
+                               le64_to_cpu(response_data->Capability);
                        memcpy(&tcon->fsUnixInfo, response_data,
                               sizeof (FILE_SYSTEM_UNIX_INFO));
                }
@@ -2511,7 +2638,7 @@ CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size,
                (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) +
                        pSMB->DataOffset);
        pSMB->DataOffset = cpu_to_le16(pSMB->DataOffset); /* now safe to change to le */
-       parm_data->FileSize = size;
+       parm_data->FileSize = cpu_to_le64(size);
        pSMB->Fid = fid;
        if(SetAllocation) {
                if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU)
@@ -2706,3 +2833,149 @@ setPermsRetry:
                goto setPermsRetry;
        return rc;
 }
+
+int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon, 
+                       const int notify_subdirs, const __u16 netfid,
+                       __u32 filter, const struct nls_table *nls_codepage)
+{
+       int rc = 0;
+       struct smb_com_transaction_change_notify_req * pSMB = NULL;
+       struct smb_com_transaction_change_notify_rsp * pSMBr = NULL;
+       int bytes_returned;
+
+       cFYI(1, ("In CIFSSMBNotify for file handle %d",(int)netfid));
+       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_le32(2);
+       /* BB find exact data count max from sess structure BB */
+       pSMB->MaxDataCount = 0; /* same in little endian or be */
+       pSMB->MaxSetupCount = 4;
+       pSMB->Reserved = 0;
+       pSMB->ParameterOffset = 0;
+       pSMB->DataCount = 0;
+       pSMB->DataOffset = 0;
+       pSMB->SetupCount = 4; /* single byte does not need le conversion */
+       pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_NOTIFY_CHANGE);
+       pSMB->ParameterCount = pSMB->TotalParameterCount;
+       if(notify_subdirs)
+               pSMB->WatchTree = 1; /* one byte - no le conversion needed */
+       pSMB->Reserved2 = 0;
+       pSMB->CompletionFilter = cpu_to_le32(filter);
+       pSMB->Fid = netfid; /* file handle always le */
+       pSMB->ByteCount = 0;
+
+       pSMB->hdr.smb_buf_length += pSMB->ByteCount;
+       rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
+                       (struct smb_hdr *) pSMBr, &bytes_returned, 0);
+       if (rc) {
+               cFYI(1, ("Error in Notify = %d", rc));
+       }
+       if (pSMB)
+               cifs_buf_release(pSMB);
+/*             if (rc == -EAGAIN)
+                       goto NotifyRetry; */
+       return rc;      
+}
+#ifdef CONFIG_CIFS_XATTR
+int
+CIFSSMBQAllEAs(const int xid, struct cifsTconInfo *tcon,
+                const unsigned char *searchName,
+                char * EAData, size_t size,
+                const struct nls_table *nls_codepage)
+{
+               /* BB assumes one setup word */
+       TRANSACTION2_QPI_REQ *pSMB = NULL;
+       TRANSACTION2_QPI_RSP *pSMBr = NULL;
+       int rc = 0;
+       int bytes_returned;
+       int name_len;
+
+       cFYI(1, ("In Query All EAs path %s", searchName));
+QAllEAsRetry:
+       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_INFO_QUERY_ALL_EAS);
+       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, ("Send error in QueryAllEAs = %d", rc));
+       } else {                /* decode response */
+               pSMBr->DataOffset = le16_to_cpu(pSMBr->DataOffset);
+               /* BB also check enough total bytes returned */
+               /* BB we need to improve the validity checking
+               of these trans2 responses */
+               if ((pSMBr->ByteCount < 4) || (pSMBr->DataOffset > 512)) 
+                       rc = -EIO;      /* bad smb */
+          /* else if (pFindData){
+                       memcpy((char *) pFindData,
+                              (char *) &pSMBr->hdr.Protocol +
+                              pSMBr->DataOffset, kl);
+               }*/ else {
+                       /* check that length of list is not more than bcc */
+                       /* check that each entry does not go beyond length
+                          of list */
+                       /* check that each element of each entry does not
+                          go beyond end of list */
+                       struct fealist * ea_response_data;
+                       rc = 0;
+                       /* validate_trans2_offsets() */
+                       /* BB to check if(start of smb + pSMBr->DataOffset > &bcc+ bcc)*/
+                       ea_response_data = (struct fealist *)
+                               (((char *) &pSMBr->hdr.Protocol) +
+                               pSMBr->DataOffset);
+                       cFYI(1,("ea length %d",ea_response_data->list_len));
+               }
+       }
+       if (pSMB)
+               cifs_buf_release(pSMB);
+       if (rc == -EAGAIN)
+               goto QAllEAsRetry;
+
+       return rc;
+}
+#endif