ANSC_HANDLE
SlapVhoAllocUint32ArrayFromImcpVar
(
ANSC_HANDLE hThisObject,
PUCHAR imcp_var_data,
ULONG imcp_var_length
)
{
PSLAP_UINT32_ARRAY slap_array = NULL;
ULONG var_count = imcp_var_length / sizeof(ULONG);
ULONG total_size = 0;
char* var_point = (char*)imcp_var_data;
ULONG jj = 0;
total_size = sizeof(SLAP_VAR_ARRAY) + sizeof(SLAP_UINT32) * var_count;
slap_array = (PSLAP_UINT32_ARRAY)AnscAllocateMemory(total_size);
if ( slap_array )
{
slap_array->Size = total_size;
slap_array->VarCount = var_count;
slap_array->Syntax = SLAP_VAR_SYNTAX_uint32Array;
for ( jj = 0; jj < var_count; jj++ )
{
slap_array->Array.arrayUint32[jj] =
(SLAP_UINT32)AnscUlongFromNToH(AnscReadUlong(var_point));
var_point += sizeof(ULONG);
}
}
return (ANSC_HANDLE)slap_array;
}
static
ANSC_HANDLE
WebVhoGetOldestGso
(
ANSC_HANDLE hThisObject,
ULONG ulSessionId,
char* identifier,
PUCHAR address,
PULONG pulSessionCount
)
{
ANSC_STATUS returnStatus = ANSC_STATUS_SUCCESS;
PWEB_VIRTUAL_HOST_OBJECT pMyObject = (PWEB_VIRTUAL_HOST_OBJECT )hThisObject;
PWEB_SITE_MANAGER_OBJECT pSiteManager = (PWEB_SITE_MANAGER_OBJECT )pMyObject->hOwnerContext;
WEB_SITE_MANAGER_PROPERTY SMProperty;
PWEB_VIRTUAL_HOST_PROPERTY pProperty = (PWEB_VIRTUAL_HOST_PROPERTY)&pMyObject->Property;
PHTTP_HFP_INTERFACE pHfpIf = (PHTTP_HFP_INTERFACE )pMyObject->hHfpIf;
PWEB_LSM_INTERFACE pLsmIf = (PWEB_LSM_INTERFACE )pMyObject->hLsmIf;
PWEB_GENERAL_SESSION_OBJECT pSession = NULL;
ULONG ulClientAddr = 0;
USHORT usClientPort = 0;
PSINGLE_LINK_ENTRY pSLinkEntry = NULL;
ULONG ulHashIndex = AnscHashUlong(ulSessionId, WEB_VHO_GSO_TABLE_SIZE);
ULONG i;
ULONG ulCSessCount = 0;
PWEB_GENERAL_SESSION_OBJECT pOldSession = NULL;
for ( i = 0; i < WEB_VHO_GSO_TABLE_SIZE; i ++ )
{
pSLinkEntry = AnscSListGetFirstEntry(&pMyObject->GsoTable[i]);
while ( pSLinkEntry )
{
pSession = ACCESS_WEB_GENERAL_SESSION_OBJECT(pSLinkEntry);
ulClientAddr = *(PULONG)pSession->GetClientAddr((ANSC_HANDLE)pSession);
usClientPort = pSession->GetClientPort((ANSC_HANDLE)pSession);
pSLinkEntry = AnscSListGetNextEntry(pSLinkEntry);
if ( pSession->LsmMaxAge != 0 && ulClientAddr == AnscReadUlong(address) )
{
ulCSessCount ++;
if ( !pOldSession )
{
pOldSession = pSession;
}
else if (
pSession->LastReqAtInSec <= pOldSession->LastReqAtInSec &&
pSession->LastRepAtInSec <= pOldSession->LastRepAtInSec
)
{
pOldSession = pSession;
}
}
}
}
*pulSessionCount = ulCSessCount;
return (ANSC_HANDLE)pSession;
}
ANSC_STATUS
WebVhoDelGso
(
ANSC_HANDLE hThisObject,
ULONG ulSessionId,
PUCHAR address,
USHORT port
)
{
ANSC_STATUS returnStatus = ANSC_STATUS_SUCCESS;
PWEB_VIRTUAL_HOST_OBJECT pMyObject = (PWEB_VIRTUAL_HOST_OBJECT )hThisObject;
PWEB_VIRTUAL_HOST_PROPERTY pProperty = (PWEB_VIRTUAL_HOST_PROPERTY)&pMyObject->Property;
PHTTP_HFP_INTERFACE pHfpIf = (PHTTP_HFP_INTERFACE )pMyObject->hHfpIf;
PWEB_LSM_INTERFACE pLsmIf = (PWEB_LSM_INTERFACE )pMyObject->hLsmIf;
PWEB_GENERAL_SESSION_OBJECT pSession = NULL;
ULONG ulClientAddr = 0;
PSINGLE_LINK_ENTRY pSLinkEntry = NULL;
ULONG ulHashIndex = AnscHashUlong(ulSessionId, WEB_VHO_GSO_TABLE_SIZE);
AnscAcquireLock(&pMyObject->GsoTableLock);
pSLinkEntry = AnscSListGetFirstEntry(&pMyObject->GsoTable[ulHashIndex]);
while ( pSLinkEntry )
{
pSession = ACCESS_WEB_GENERAL_SESSION_OBJECT(pSLinkEntry);
ulClientAddr = *(PULONG)pSession->GetClientAddr((ANSC_HANDLE)pSession);
pSLinkEntry = AnscSListGetNextEntry(pSLinkEntry);
if ( (pSession->GetSessionId((ANSC_HANDLE)pSession) == ulSessionId ) &&
(ulClientAddr == AnscReadUlong(address)) )
{
AnscSListPopEntryByLink(&pMyObject->GsoTable[ulHashIndex], &pSession->Linkage);
pSession->AcquireAccess((ANSC_HANDLE)pSession);
returnStatus =
pLsmIf->EndSession
(
pLsmIf->hOwnerContext,
(ANSC_HANDLE)pSession
);
pSession->ReleaseAccess((ANSC_HANDLE)pSession);
pSession->Cancel ((ANSC_HANDLE)pSession);
pSession->Remove ((ANSC_HANDLE)pSession);
}
}
AnscReleaseLock(&pMyObject->GsoTableLock);
return ANSC_STATUS_SUCCESS;
}
ANSC_HANDLE
SlapVhoAllocIntArray
(
ANSC_HANDLE hThisObject,
PUCHAR var_data,
ULONG var_length
)
{
PSLAP_INT_ARRAY slap_array = NULL;
ULONG var_count = var_length / sizeof(SLAP_INT);
ULONG total_size = 0;
char* var_point = (char*)var_data;
ULONG jj = 0;
total_size = sizeof(SLAP_VAR_ARRAY) + sizeof(SLAP_INT) * var_count;
slap_array = (PSLAP_INT_ARRAY)AnscAllocateMemory(total_size);
if ( slap_array )
{
slap_array->Size = total_size;
slap_array->VarCount = var_count;
slap_array->Syntax = SLAP_VAR_SYNTAX_intArray;
if ( var_data )
{
for ( jj = 0; jj < var_count; jj++ )
{
slap_array->Array.arrayInt[jj] =
(SLAP_INT)AnscReadUlong(var_point);
var_point += sizeof(SLAP_INT);
}
}
}
return (ANSC_HANDLE)slap_array;
}
ANSC_HANDLE
WebVhoGetGso
(
ANSC_HANDLE hThisObject,
ULONG ulSessionId,
char* identifier,
PUCHAR address,
USHORT port
)
{
ANSC_STATUS returnStatus = ANSC_STATUS_SUCCESS;
PWEB_VIRTUAL_HOST_OBJECT pMyObject = (PWEB_VIRTUAL_HOST_OBJECT )hThisObject;
PWEB_SITE_MANAGER_OBJECT pSiteManager = (PWEB_SITE_MANAGER_OBJECT )pMyObject->hOwnerContext;
WEB_SITE_MANAGER_PROPERTY SMProperty;
PWEB_VIRTUAL_HOST_PROPERTY pProperty = (PWEB_VIRTUAL_HOST_PROPERTY)&pMyObject->Property;
PHTTP_HFP_INTERFACE pHfpIf = (PHTTP_HFP_INTERFACE )pMyObject->hHfpIf;
PWEB_LSM_INTERFACE pLsmIf = (PWEB_LSM_INTERFACE )pMyObject->hLsmIf;
PWEB_GENERAL_SESSION_OBJECT pSession = NULL;
ULONG ulClientAddr = 0;
USHORT usClientPort = 0;
PSINGLE_LINK_ENTRY pSLinkEntry = NULL;
ULONG ulHashIndex = AnscHashUlong(ulSessionId, WEB_VHO_GSO_TABLE_SIZE);
ULONG i;
ULONG ulCSessCount = 0;
PWEB_GENERAL_SESSION_OBJECT pOldSession = NULL;
AnscAcquireLock(&pMyObject->GsoTableLock);
if ( ulSessionId != 0xFFFFFFFF )
{
pSLinkEntry = AnscSListGetFirstEntry(&pMyObject->GsoTable[ulHashIndex]);
while ( pSLinkEntry )
{
pSession = ACCESS_WEB_GENERAL_SESSION_OBJECT(pSLinkEntry);
ulClientAddr = *(PULONG)pSession->GetClientAddr((ANSC_HANDLE)pSession);
usClientPort = pSession->GetClientPort((ANSC_HANDLE)pSession);
pSLinkEntry = AnscSListGetNextEntry(pSLinkEntry);
if ( pSession->GetLsmMaxAge((ANSC_HANDLE)pSession) == 0 )
{
/* this session is marked to be closed */
continue;
}
if ( (pSession->GetSessionId((ANSC_HANDLE)pSession) == ulSessionId) &&
(ulClientAddr == AnscReadUlong(address)) )
{
char* pLsmId = pSession->GetLsmIdentifier((ANSC_HANDLE)pSession);
if ( !identifier )
{
if ( !pLsmId || AnscSizeOfString(pLsmId) == 0 )
{
AnscReleaseLock(&pMyObject->GsoTableLock);
pSession->AcquireAccess((ANSC_HANDLE)pSession);
return (ANSC_HANDLE)pSession;
}
else
{
break;
}
}
else if ( AnscEqualString
(
pLsmId,
identifier,
TRUE
) )
{
AnscReleaseLock(&pMyObject->GsoTableLock);
pSession->AcquireAccess((ANSC_HANDLE)pSession);
return (ANSC_HANDLE)pSession;
}
else
{
break;
}
}
}
}
else
{
for ( i = 0; i < WEB_VHO_GSO_TABLE_SIZE; i ++ )
{
pSLinkEntry = AnscSListGetFirstEntry(&pMyObject->GsoTable[i]);
while ( pSLinkEntry )
{
pSession = ACCESS_WEB_GENERAL_SESSION_OBJECT(pSLinkEntry);
ulClientAddr = *(PULONG)pSession->GetClientAddr((ANSC_HANDLE)pSession);
usClientPort = pSession->GetClientPort((ANSC_HANDLE)pSession);
pSLinkEntry = AnscSListGetNextEntry(pSLinkEntry);
if ( (ulClientAddr == AnscReadUlong(address)) && usClientPort == port )
{
AnscReleaseLock(&pMyObject->GsoTableLock);
/* same connection */
pSession->AcquireAccess((ANSC_HANDLE)pSession);
return (ANSC_HANDLE)pSession;
}
}
}
}
pSiteManager->GetProperty((ANSC_HANDLE)pSiteManager, &SMProperty);
pOldSession =
(PWEB_GENERAL_SESSION_OBJECT)WebVhoGetOldestGso
(
(ANSC_HANDLE)pMyObject,
ulSessionId,
identifier,
address,
&ulCSessCount
);
if ( pOldSession && SMProperty.MaxSessionCountPerPeer != 0 && ulCSessCount >= SMProperty.MaxSessionCountPerPeer )
{
pOldSession->Terminate((ANSC_HANDLE)pOldSession);
}
AnscReleaseLock(&pMyObject->GsoTableLock);
/*
* We couldn't find a general session object for this client, we shall create a new one and
* let the Logical Session Manager classify the client based on his/her identifier.
*/
pSession =
(PWEB_GENERAL_SESSION_OBJECT)pMyObject->AddGso
(
(ANSC_HANDLE)pMyObject,
identifier,
address,
port
);
return (ANSC_HANDLE)pSession;
}
ANSC_HANDLE
WebVhoIdentifyGso
(
ANSC_HANDLE hThisObject,
ANSC_HANDLE hBmoReq
)
{
ANSC_STATUS returnStatus = ANSC_STATUS_SUCCESS;
PWEB_VIRTUAL_HOST_OBJECT pMyObject = (PWEB_VIRTUAL_HOST_OBJECT )hThisObject;
PWEB_VIRTUAL_HOST_PROPERTY pProperty = (PWEB_VIRTUAL_HOST_PROPERTY )&pMyObject->Property;
PHTTP_HFP_INTERFACE pHfpIf = (PHTTP_HFP_INTERFACE )pMyObject->hHfpIf;
PWEB_LSM_INTERFACE pLsmIf = (PWEB_LSM_INTERFACE )pMyObject->hLsmIf;
PHTTP_BMO_REQ_OBJECT pBmoReq = (PHTTP_BMO_REQ_OBJECT )hBmoReq;
PHTTP_HFO_COOKIE pHttpHfoCookie = (PHTTP_HFO_COOKIE )NULL;
PHTTP_COOKIE_CONTENT pCookieContent = (PHTTP_COOKIE_CONTENT )NULL;
PWEB_GENERAL_SESSION_OBJECT pSession = (PWEB_GENERAL_SESSION_OBJECT)NULL;
ULONG ulSessionId = (ULONG )0xFFFFFFFF;
char* pLsmIdentifier = (char* )NULL;
char pEmptyLsmId[] = {0};
BOOL bLsmIdAlloc = (BOOL )FALSE;
ULONG ulClientAddr = (ULONG )AnscReadUlong(pBmoReq->GetClientAddr((ANSC_HANDLE)pBmoReq));
USHORT usClientPort = (USHORT )pBmoReq->GetClientPort((ANSC_HANDLE)pBmoReq);
BOOL bGotSessionId = (BOOL )FALSE;
BOOL bGotLsmId = (BOOL )FALSE;
ULONG i = 0;
ULONG ulCookieIndex = 0;
if ( !pProperty->bEnableSessionTracking )
{
return (ANSC_HANDLE)NULL;
}
pHttpHfoCookie =
(PHTTP_HFO_COOKIE)pBmoReq->GetHeaderField2
(
(ANSC_HANDLE)pBmoReq,
HTTP_HEADER_ID_COOKIE,
ulCookieIndex ++
);
while ( pHttpHfoCookie )
{
for ( i = 0; i < pHttpHfoCookie->CookieCount; i++ )
{
pCookieContent = &pHttpHfoCookie->CookieArray[i];
if ( !bGotSessionId &&
AnscEqualString
(
pCookieContent->Name,
pProperty->VhoCookieName,
TRUE
) )
{
PUCHAR pCookieValue = pCookieContent->Value;
/* Some clients will use double quote in cookie value
* although we don't specify in Set-Cookie.
*/
if ( pCookieValue[0] == '"' )
{
pCookieValue ++;
}
ulSessionId = (ULONG)_ansc_atol(pCookieValue);
bGotSessionId = TRUE;
}
else if ( !bGotLsmId &&
AnscEqualString
(
pCookieContent->Name,
pProperty->LsmCookieName,
TRUE
) )
{
bGotLsmId = TRUE;
pLsmIdentifier = pCookieContent->Value;
/* Some clients will use double quote in cookie value
* although we don't specify in Set-Cookie. This may
* cause session match failure, and therefore authentication
* may fail.
*/
if ( pLsmIdentifier )
{
ULONG ulLen = (ULONG)AnscSizeOfString(pLsmIdentifier);
if ( ulLen == 2 && *pLsmIdentifier == '"' && *(pLsmIdentifier + 1) == '"' )
{
pLsmIdentifier = pEmptyLsmId;
}
else if ( ulLen > 2 && *pLsmIdentifier == '"' && *(pLsmIdentifier + ulLen - 1) == '"' )
{
pLsmIdentifier = AnscAllocateMemory(ulLen);
AnscCopyMemory(pLsmIdentifier, pCookieContent->Value + 1, ulLen - 2);
pLsmIdentifier[ulLen - 2] = 0;
bLsmIdAlloc = TRUE;
}
}
}
}
if ( bGotSessionId && bGotLsmId )
{
break;
}
pHttpHfoCookie =
(PHTTP_HFO_COOKIE)pBmoReq->GetHeaderField2
(
(ANSC_HANDLE)pBmoReq,
HTTP_HEADER_ID_COOKIE,
ulCookieIndex ++
);
}
pSession =
(PWEB_GENERAL_SESSION_OBJECT)pMyObject->GetGso
(
(ANSC_HANDLE)pMyObject,
ulSessionId,
pLsmIdentifier,
(PUCHAR)&ulClientAddr,
usClientPort
);
if ( bLsmIdAlloc && pLsmIdentifier )
{
AnscFreeMemory(pLsmIdentifier);
}
return (ANSC_HANDLE)pSession;
}