C++ (Cpp) IPv6_Transient_Multicast Examples

Example #1

File: igmp_snoop.c Project: schidler/flyzjhz-rt-n56u

BOOLEAN IPv6MulticastFilterExcluded(IN PUCHAR pDstMacAddr)
{
	PUCHAR pIpHeader;
	PRT_IPV6_HDR pIpv6Hdr;
	UINT32 offset;
	INT idx;
	UINT8 nextProtocol;

	if(!IS_IPV6_MULTICAST_MAC_ADDR(pDstMacAddr))
		return FALSE;

	pIpHeader = pDstMacAddr + 14;
	pIpv6Hdr = (PRT_IPV6_HDR)(pIpHeader);
	offset = IPV6_HDR_LEN;
	nextProtocol = pIpv6Hdr->nextHdr;
	while(nextProtocol == IPV6_NEXT_HEADER_HOP_BY_HOP)
	{
		if(IPv6ExtHdrHandle((RT_IPV6_EXT_HDR *)(pIpHeader + offset), &nextProtocol, &offset) == FALSE)
			break;
	}

	for (idx = 0; idx < IPV6_MULTICAST_FILTER_EXCLUED_SIZE; idx++)
	{
		if (nextProtocol == IPv6MulticastFilterExclued[idx])
			return TRUE;
	}

	/* Check non-transient multicast */
	if (!IPv6_Transient_Multicast(&pIpv6Hdr->dstAddr))
		return TRUE;

	return FALSE;
}

Example #2

File: igmp_snoop.c Project: andy-padavan/rt-n56u

static INT32 IPv6MulticastFilterExcluded(
	IN PUCHAR pDstMacAddr)
{
	PUCHAR pIpHeader;
	PRT_IPV6_HDR pIpv6Hdr;
	UINT32 offset;
	INT idx;
	UINT8 nextProtocol;

	if(!IS_IPV6_MULTICAST_MAC_ADDR(pDstMacAddr))
		return -1;

	pIpHeader = pDstMacAddr + 14;
	pIpv6Hdr = (PRT_IPV6_HDR)(pIpHeader);
	offset = IPV6_HDR_LEN;
	nextProtocol = pIpv6Hdr->nextHdr;
	while(nextProtocol == IPV6_NEXT_HEADER_HOP_BY_HOP)
	{
		if(IPv6ExtHdrHandle((RT_IPV6_EXT_HDR *)(pIpHeader + offset), &nextProtocol, &offset) == FALSE)
			break;
	}

	if (nextProtocol == IPV6_NEXT_HEADER_ICMPV6)
	{
		PRT_ICMPV6_HDR pICMPv6Hdr = (PRT_ICMPV6_HDR)(pIpHeader + offset);
		
		switch (pICMPv6Hdr->type)
		{
		case MLD_QUERY:
		case MLD_V1_LISTENER_REPORT:
		case MLD_V1_LISTENER_DONE:
		case MLD_V2_LISTERNER_REPORT:
			return 1;
		}
	}

	for (idx = 0; idx < IPV6_MULTICAST_FILTER_EXCLUED_SIZE; idx++)
	{
		if (nextProtocol == IPv6MulticastFilterExclued[idx])
			return 2;
	}

	/* Check non-transient multicast */
	if (!IPv6_Transient_Multicast(&pIpv6Hdr->dstAddr))
		return 2;

	return 0;
}