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#include "headers.h"
static BOOLEAN MatchSrcIpv6Address(struct bcm_classifier_rule *pstClassifierRule,
IPV6Header *pstIpv6Header);
static BOOLEAN MatchDestIpv6Address(struct bcm_classifier_rule *pstClassifierRule,
IPV6Header *pstIpv6Header);
static VOID DumpIpv6Header(IPV6Header *pstIpv6Header);
static UCHAR *GetNextIPV6ChainedHeader(UCHAR **ppucPayload,
UCHAR *pucNextHeader, BOOLEAN *bParseDone, USHORT *pusPayloadLength)
{
UCHAR *pucRetHeaderPtr = NULL;
UCHAR *pucPayloadPtr = NULL;
USHORT usNextHeaderOffset = 0 ;
struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
if ((ppucPayload == NULL) || (*pusPayloadLength == 0) ||
(*bParseDone)) {
*bParseDone = TRUE;
return NULL;
}
pucRetHeaderPtr = *ppucPayload;
pucPayloadPtr = *ppucPayload;
if (!pucRetHeaderPtr || !pucPayloadPtr) {
*bParseDone = TRUE;
return NULL;
}
/* Get the Nextt Header Type */
*bParseDone = FALSE;
switch (*pucNextHeader) {
case IPV6HDR_TYPE_HOPBYHOP:
{
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
DBG_LVL_ALL, "\nIPv6 HopByHop Header");
usNextHeaderOffset += sizeof(IPV6HopByHopOptionsHeader);
}
break;
case IPV6HDR_TYPE_ROUTING:
{
IPV6RoutingHeader *pstIpv6RoutingHeader;
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
DBG_LVL_ALL, "\nIPv6 Routing Header");
pstIpv6RoutingHeader = (IPV6RoutingHeader *)pucPayloadPtr;
usNextHeaderOffset += sizeof(IPV6RoutingHeader);
usNextHeaderOffset += pstIpv6RoutingHeader->ucNumAddresses * IPV6_ADDRESS_SIZEINBYTES;
}
break;
case IPV6HDR_TYPE_FRAGMENTATION:
{
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
DBG_LVL_ALL,
"\nIPv6 Fragmentation Header");
usNextHeaderOffset += sizeof(IPV6FragmentHeader);
}
break;
case IPV6HDR_TYPE_DESTOPTS:
{
IPV6DestOptionsHeader *pstIpv6DestOptsHdr = (IPV6DestOptionsHeader *)pucPayloadPtr;
int nTotalOptions = pstIpv6DestOptsHdr->ucHdrExtLen;
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
DBG_LVL_ALL,
"\nIPv6 DestOpts Header Header");
usNextHeaderOffset += sizeof(IPV6DestOptionsHeader);
usNextHeaderOffset += nTotalOptions * IPV6_DESTOPTS_HDR_OPTIONSIZE ;
}
break;
case IPV6HDR_TYPE_AUTHENTICATION:
{
IPV6AuthenticationHeader *pstIpv6AuthHdr = (IPV6AuthenticationHeader *)pucPayloadPtr;
int nHdrLen = pstIpv6AuthHdr->ucLength;
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
DBG_LVL_ALL,
"\nIPv6 Authentication Header");
usNextHeaderOffset += nHdrLen * 4;
}
break;
case IPV6HDR_TYPE_ENCRYPTEDSECURITYPAYLOAD:
{
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
DBG_LVL_ALL,
"\nIPv6 Encrypted Security Payload Header");
*bParseDone = TRUE;
}
break;
case IPV6_ICMP_HDR_TYPE:
{
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
DBG_LVL_ALL, "\nICMP Header");
*bParseDone = TRUE;
}
break;
case TCP_HEADER_TYPE:
{
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
DBG_LVL_ALL, "\nTCP Header");
*bParseDone = TRUE;
}
break;
case UDP_HEADER_TYPE:
{
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
DBG_LVL_ALL, "\nUDP Header");
*bParseDone = TRUE;
}
break;
default:
{
*bParseDone = TRUE;
}
break;
}
if (*bParseDone == FALSE) {
if (*pusPayloadLength <= usNextHeaderOffset) {
*bParseDone = TRUE;
} else {
*pucNextHeader = *pucPayloadPtr;
pucPayloadPtr += usNextHeaderOffset;
(*pusPayloadLength) -= usNextHeaderOffset;
}
}
*ppucPayload = pucPayloadPtr;
return pucRetHeaderPtr;
}
static UCHAR GetIpv6ProtocolPorts(UCHAR *pucPayload, USHORT *pusSrcPort,
USHORT *pusDestPort, USHORT usPayloadLength, UCHAR ucNextHeader)
{
UCHAR *pIpv6HdrScanContext = pucPayload;
BOOLEAN bDone = FALSE;
UCHAR ucHeaderType = 0;
UCHAR *pucNextHeader = NULL;
struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
if (!pucPayload || (usPayloadLength == 0))
return 0;
*pusSrcPort = *pusDestPort = 0;
ucHeaderType = ucNextHeader;
while (!bDone) {
pucNextHeader = GetNextIPV6ChainedHeader(&pIpv6HdrScanContext,
&ucHeaderType, &bDone, &usPayloadLength);
if (bDone) {
if ((ucHeaderType == TCP_HEADER_TYPE) ||
(ucHeaderType == UDP_HEADER_TYPE)) {
*pusSrcPort = *((PUSHORT)(pucNextHeader));
*pusDestPort = *((PUSHORT)(pucNextHeader+2));
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
DBG_LVL_ALL,
"\nProtocol Ports - Src Port :0x%x Dest Port : 0x%x",
ntohs(*pusSrcPort),
ntohs(*pusDestPort));
}
break;
}
}
return ucHeaderType;
}
/*
* Arg 1 struct bcm_mini_adapter *Adapter is a pointer ot the driver contorl structure
* Arg 2 PVOID pcIpHeader is a pointer to the IP header of the packet
*/
USHORT IpVersion6(struct bcm_mini_adapter *Adapter, PVOID pcIpHeader,
struct bcm_classifier_rule *pstClassifierRule)
{
USHORT ushDestPort = 0;
USHORT ushSrcPort = 0;
UCHAR ucNextProtocolAboveIP = 0;
IPV6Header *pstIpv6Header = NULL;
BOOLEAN bClassificationSucceed = FALSE;
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
DBG_LVL_ALL, "IpVersion6 ==========>\n");
pstIpv6Header = (IPV6Header *)pcIpHeader;
DumpIpv6Header(pstIpv6Header);
/*
* Try to get the next higher layer protocol
* and the Ports Nos if TCP or UDP
*/
ucNextProtocolAboveIP = GetIpv6ProtocolPorts((UCHAR *)(pcIpHeader + sizeof(IPV6Header)),
&ushSrcPort,
&ushDestPort,
pstIpv6Header->usPayloadLength,
pstIpv6Header->ucNextHeader);
do {
if (pstClassifierRule->ucDirection == 0) {
/*
* cannot be processed for classification.
* it is a down link connection
*/
break;
}
if (!pstClassifierRule->bIpv6Protocol) {
/*
* We are looking for Ipv6 Classifiers
* Lets ignore this classifier and try the next one
*/
break;
}
bClassificationSucceed = MatchSrcIpv6Address(pstClassifierRule,
pstIpv6Header);
if (!bClassificationSucceed)
break;
bClassificationSucceed = MatchDestIpv6Address(pstClassifierRule,
pstIpv6Header);
if (!bClassificationSucceed)
break;
/*
* Match the protocol type.
* For IPv6 the next protocol at end of
* Chain of IPv6 prot headers
*/
bClassificationSucceed = MatchProtocol(pstClassifierRule,
ucNextProtocolAboveIP);
if (!bClassificationSucceed)
break;
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
DBG_LVL_ALL, "\nIPv6 Protocol Matched");
if ((ucNextProtocolAboveIP == TCP_HEADER_TYPE) ||
(ucNextProtocolAboveIP == UDP_HEADER_TYPE)) {
/* Match Src Port */
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
DBG_LVL_ALL, "\nIPv6 Source Port:%x\n",
ntohs(ushSrcPort));
bClassificationSucceed = MatchSrcPort(pstClassifierRule,
ntohs(ushSrcPort));
if (!bClassificationSucceed)
break;
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
DBG_LVL_ALL, "\nIPv6 Src Port Matched");
/* Match Dest Port */
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
DBG_LVL_ALL, "\nIPv6 Destination Port:%x\n",
ntohs(ushDestPort));
bClassificationSucceed = MatchDestPort(pstClassifierRule,
ntohs(ushDestPort));
if
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