static
PVDIR_PAGED_SEARCH_RECORD
VmDirPagedSearchCacheFind(
PCSTR pszCookie
)
{
DWORD dwError = 0;
PLW_HASHTABLE_NODE pNode = NULL;
PVDIR_PAGED_SEARCH_RECORD pSearchRecord = NULL;
BOOLEAN bInLock = FALSE;
if (IsNullOrEmptyString(pszCookie))
{
BAIL_WITH_VMDIR_ERROR(dwError, VMDIR_ERROR_INVALID_PARAMETER);
}
VMDIR_LOCK_MUTEX(bInLock, gPagedSearchCache.mutex);
dwError = LwRtlHashTableFindKey(
gPagedSearchCache.pHashTbl,
&pNode,
(PVOID)pszCookie);
dwError = LwNtStatusToWin32Error(dwError);
BAIL_ON_VMDIR_ERROR(dwError);
pSearchRecord = LW_STRUCT_FROM_FIELD(pNode, VDIR_PAGED_SEARCH_RECORD, Node);
_RefPagedSearchRecord(pSearchRecord);
cleanup:
VMDIR_UNLOCK_MUTEX(bInLock, gPagedSearchCache.mutex);
return pSearchRecord;
error:
goto cleanup;
}
static
int
IsAttrInReplScope(
VDIR_OPERATION * op,
char * attrType,
char * attrMetaData,
BOOLEAN * inScope,
PSTR* ppszErrorMsg
)
{
int retVal = LDAP_SUCCESS;
PLW_HASHTABLE_NODE pNode = NULL;
char origInvocationId[VMDIR_GUID_STR_LEN];
USN origUsn = VmDirStringToLA( VmDirStringRChrA( attrMetaData, ':' ) + 1, NULL, 10 );
int rc = 0;
PSTR pszLocalErrorMsg = NULL;
*inScope = FALSE;
// attrMetaData format is: <local USN>:<version no>:<originating server ID>:<originating time>:<originating USN>
VmDirStringNCpyA( origInvocationId, VMDIR_GUID_STR_LEN,
VmDirStringChrA( VmDirStringChrA( attrMetaData, ':' ) + 1, ':') + 1, VMDIR_GUID_STR_LEN - 1);
origInvocationId[VMDIR_GUID_STR_LEN - 1] = '\0';
// Skip the attribute:
// - if the originating server for the current state is same as the requesting server or if it is one of those
// attributes that have "local" scope only. E.g. sending ATTR_LAST_LOCAL_USN_PROCESSED and
// ATTR_UP_TO_DATE_VECTOR, causes continuous back-forth replication of Replication Agreements and Server
// entries between various servers.
assert( op->syncReqCtrl != NULL );
if ((attrType != NULL && (VmDirStringCompareA( attrType, ATTR_LAST_LOCAL_USN_PROCESSED, FALSE) == 0 ||
VmDirStringCompareA( attrType, ATTR_UP_TO_DATE_VECTOR, FALSE) == 0 ||
VmDirStringCompareA( attrType, VDIR_ATTRIBUTE_SEQUENCE_RID, FALSE) == 0)))
{
// Reset metaData value so that we don't send local only attribute back.
attrMetaData[0] = '\0';
*inScope = FALSE;
goto cleanup;
}
else if ( attrType != NULL && (VmDirStringCompareA( attrType, ATTR_USN_CHANGED, FALSE) == 0))
{
; // always send uSNChanged. (PR 1573117)
}
else if (VmDirStringCompareA( origInvocationId,
op->syncReqCtrl->value.syncReqCtrlVal.reqInvocationId.lberbv.bv_val,TRUE ) == 0)
{
// Change is originated from the requesting server.
// Reset metaData value so that we don't send metaData as well as this attribute back.
attrMetaData[0] = '\0';
*inScope = FALSE;
goto cleanup;
}
else
{
rc = LwRtlHashTableFindKey( op->syncDoneCtrl->value.syncDoneCtrlVal.htUtdVector, &pNode, origInvocationId );
rc = LwNtStatusToWin32Error(rc);
if (rc != 0 && rc != ERROR_NOT_FOUND)
{
VMDIR_LOG_VERBOSE( VMDIR_LOG_MASK_ALL, "IsAttrInReplScope: LwRtlHashTableFindKey failed for origInvocationId: %s",
origInvocationId );
retVal = LDAP_OPERATIONS_ERROR;
BAIL_ON_VMDIR_ERROR_WITH_MSG( retVal, (pszLocalErrorMsg),
"LwRtlHashTableFindKey failed.");
}
if (pNode == NULL) // Attribute is to be sent in the result entry.
{
UptoDateVectorEntry * utdVectorEntry = NULL;
VDIR_BERVALUE bvServerId = VDIR_BERVALUE_INIT;
if (VmDirAllocateMemory( sizeof( UptoDateVectorEntry ), (PVOID *)&utdVectorEntry) != 0)
{
retVal = LDAP_OPERATIONS_ERROR;
BAIL_ON_VMDIR_ERROR_WITH_MSG( retVal, (pszLocalErrorMsg),
"IsAttrInReplScope: BervalContentDup failed.");
}
bvServerId.lberbv.bv_val = origInvocationId;
bvServerId.lberbv.bv_len = VmDirStringLenA( origInvocationId );
if (VmDirBervalContentDup( &bvServerId, &utdVectorEntry->invocationId ) != 0)
{
retVal = LDAP_OPERATIONS_ERROR;
BAIL_ON_VMDIR_ERROR_WITH_MSG( retVal, (pszLocalErrorMsg),
"IsAttrInReplScope: BervalContentDup failed.");
}
utdVectorEntry->currMaxOrigUsnProcessed = origUsn;
LwRtlHashTableResizeAndInsert( op->syncDoneCtrl->value.syncDoneCtrlVal.htUtdVector,
&utdVectorEntry->Node, &pNode);
assert( pNode == NULL ); // assert the key of added node is unique
}
else
{
UptoDateVectorEntry * utdVectorEntry = NULL;
utdVectorEntry = (UptoDateVectorEntry *)LW_STRUCT_FROM_FIELD(pNode, UptoDateVectorEntry, Node);
if (origUsn > utdVectorEntry->reqLastOrigUsnProcessed )
{ // Attribute is to be sent in the result entry.
// Update if origUsn of this attribute is > the current highest
if (origUsn > utdVectorEntry->currMaxOrigUsnProcessed )
{
utdVectorEntry->currMaxOrigUsnProcessed = origUsn;
}
}
else
{
VMDIR_LOG_VERBOSE( LDAP_DEBUG_REPL_ATTR,
"IsAttrInReplScope: Attribute: %s, metaData: %s, replication scope = FALSE",
attrType, attrMetaData );
// Reset metaData value so that we don't send metaData for this attribute back.
attrMetaData[0] = '\0';
*inScope = FALSE;
goto cleanup;
}
}
}
VMDIR_LOG_INFO( LDAP_DEBUG_REPL_ATTR, "IsAttrInReplScope: Attribute: %s, metaData: %s, replication scope = TRUE",
attrType, attrMetaData );
*inScope = TRUE;
cleanup:
if (ppszErrorMsg)
{
*ppszErrorMsg = pszLocalErrorMsg;
}
else
{
VMDIR_SAFE_FREE_MEMORY(pszLocalErrorMsg);
}
return( retVal );
error:
goto cleanup;
}
/*
* Test whether the origUsn is in scope so that attribute, attr-meta-data or
* attr-value-meta-data be sent back to the replicaiton consumer based on whether
* the origUsn for that invocationId has been processed already by the consumer
* TODO: Needed Refractoring
*/
DWORD
VmDirIsUsnInScope(
PVDIR_OPERATION pOperation,
PCSTR pAttrName,
PCSTR pszOrigInvocationId,
USN origUsn,
USN localUSN,
USN priorSentUSNCreated,
PBOOLEAN pbIsUsnInScope
)
{
DWORD dwError = 0;
PLW_HASHTABLE_NODE pNode = NULL;
PSTR pszLocalErrorMsg = NULL;
UptoDateVectorEntry *pUtdVectorEntry = NULL;
UptoDateVectorEntry *pNewUtdVectorEntry = NULL;
int retVal = 0;
if (!pOperation ||
!pszOrigInvocationId ||
!pbIsUsnInScope ||
!pOperation->syncReqCtrl ||
!pOperation->syncDoneCtrl)
{
BAIL_WITH_VMDIR_ERROR(dwError, VMDIR_ERROR_INVALID_PARAMETER);
}
*pbIsUsnInScope = FALSE;
//Originating server for the current state is same as the requesting server
if (VmDirStringCompareA(
pszOrigInvocationId,
pOperation->syncReqCtrl->value.syncReqCtrlVal.reqInvocationId.lberbv.bv_val,
TRUE) == 0)
{
*pbIsUsnInScope = FALSE;
goto cleanup;
}
retVal = LwRtlHashTableFindKey(
pOperation->syncDoneCtrl->value.syncDoneCtrlVal.htUtdVector, &pNode, pszOrigInvocationId);
retVal = LwNtStatusToWin32Error(retVal);
if (retVal != 0 && retVal != ERROR_NOT_FOUND)
{
VMDIR_LOG_VERBOSE(
VMDIR_LOG_MASK_ALL,
"%s: LwRtlHashTableFindKey failed for origInvocationId: %s",
__FUNCTION__,
pszOrigInvocationId);
dwError = LDAP_OPERATIONS_ERROR;
BAIL_ON_VMDIR_ERROR_WITH_MSG(dwError, (pszLocalErrorMsg), "LwRtlHashTableFindKey failed.");
}
if (pNode == NULL)
{
VDIR_BERVALUE bvServerId = VDIR_BERVALUE_INIT;
dwError = VmDirAllocateMemory(sizeof(UptoDateVectorEntry), (PVOID *)&pNewUtdVectorEntry);
BAIL_ON_VMDIR_ERROR(dwError);
bvServerId.lberbv.bv_val = (PSTR)pszOrigInvocationId;
bvServerId.lberbv.bv_len = VmDirStringLenA(pszOrigInvocationId);
dwError = VmDirBervalContentDup(&bvServerId, &pNewUtdVectorEntry->invocationId);
BAIL_ON_VMDIR_ERROR(dwError);
pNewUtdVectorEntry->currMaxOrigUsnProcessed = origUsn;
LwRtlHashTableResizeAndInsert(
pOperation->syncDoneCtrl->value.syncDoneCtrlVal.htUtdVector,
&pNewUtdVectorEntry->Node,
&pNode);
// assert the key of added node is unique
assert(pNode == NULL);
pNewUtdVectorEntry = NULL;
*pbIsUsnInScope = TRUE;
goto cleanup;
}
pUtdVectorEntry = (UptoDateVectorEntry *)LW_STRUCT_FROM_FIELD(pNode, UptoDateVectorEntry, Node);
if (origUsn > pUtdVectorEntry->reqLastOrigUsnProcessed )
{
// attribute or the valueMetaData item in scope if origUsn valueMetaData is > the current highest
if (origUsn > pUtdVectorEntry->currMaxOrigUsnProcessed )
{
pUtdVectorEntry->currMaxOrigUsnProcessed = origUsn;
}
// Note, this handles ADD->MODIFY case but not multiple MODIFYs scenario.
// However, it is fine as consumer should be able to handle redundant feed from supplier.
// The key point here is to NOT send ATTR_USN_CREATED, so we can derive correct sync_state in WriteSyncStateControl.
if (localUSN > priorSentUSNCreated)
{
*pbIsUsnInScope = TRUE;
if (priorSentUSNCreated > 0)
{
VMDIR_LOG_INFO(
LDAP_DEBUG_REPL,
"%s new usn %llu after prior usncreated %llu attr %s",
__FUNCTION__,
origUsn,
priorSentUSNCreated,
VDIR_SAFE_STRING(pAttrName));
}
}
else
{
VMDIR_LOG_INFO(
LDAP_DEBUG_REPL,
"%s (add->modify) race condition avoided. skip prior usncreated %llu attr %s",
__FUNCTION__,
priorSentUSNCreated,
VDIR_SAFE_STRING(pAttrName));
}
goto cleanup;
}
VMDIR_LOG_INFO(
LDAP_DEBUG_REPL,
"%s: (not in scope) attr name: %s orig invo: %s utdUsn: %"PRId64" usn: %"PRId64,
__FUNCTION__,
VDIR_SAFE_STRING(pAttrName),
VDIR_SAFE_STRING(pszOrigInvocationId),
pUtdVectorEntry->reqLastOrigUsnProcessed,
origUsn);
cleanup:
VMDIR_SAFE_FREE_MEMORY(pszLocalErrorMsg);
return dwError;
error:
VMDIR_LOG_ERROR(VMDIR_LOG_MASK_ALL, "failed, error (%d)", dwError);
if (pNewUtdVectorEntry)
{
VmDirFreeBervalContent(&pNewUtdVectorEntry->invocationId);
}
VMDIR_SAFE_FREE_MEMORY(pNewUtdVectorEntry);
goto cleanup;
}