![Lisa Nguyen](/assets/img/avatar_default.png)
Some void pointers can be assigned to other pointer variables in functions without casting. Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
452 lines
13 KiB
C
452 lines
13 KiB
C
#include "headers.h"
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static bool MatchSrcIpv6Address(struct bcm_classifier_rule *pstClassifierRule,
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struct bcm_ipv6_hdr *pstIpv6Header);
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static bool MatchDestIpv6Address(struct bcm_classifier_rule *pstClassifierRule,
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struct bcm_ipv6_hdr *pstIpv6Header);
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static VOID DumpIpv6Header(struct bcm_ipv6_hdr *pstIpv6Header);
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static UCHAR *GetNextIPV6ChainedHeader(UCHAR **ppucPayload,
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UCHAR *pucNextHeader, bool *bParseDone, USHORT *pusPayloadLength)
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{
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UCHAR *pucRetHeaderPtr = NULL;
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UCHAR *pucPayloadPtr = NULL;
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USHORT usNextHeaderOffset = 0 ;
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struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
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if ((ppucPayload == NULL) || (*pusPayloadLength == 0) ||
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(*bParseDone)) {
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*bParseDone = TRUE;
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return NULL;
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}
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pucRetHeaderPtr = *ppucPayload;
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pucPayloadPtr = *ppucPayload;
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if (!pucRetHeaderPtr || !pucPayloadPtr) {
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*bParseDone = TRUE;
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return NULL;
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}
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/* Get the Nextt Header Type */
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*bParseDone = false;
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switch (*pucNextHeader) {
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case IPV6HDR_TYPE_HOPBYHOP:
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{
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
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DBG_LVL_ALL, "\nIPv6 HopByHop Header");
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usNextHeaderOffset += sizeof(struct bcm_ipv6_options_hdr);
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}
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break;
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case IPV6HDR_TYPE_ROUTING:
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{
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struct bcm_ipv6_routing_hdr *pstIpv6RoutingHeader;
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
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DBG_LVL_ALL, "\nIPv6 Routing Header");
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pstIpv6RoutingHeader = (struct bcm_ipv6_routing_hdr *)pucPayloadPtr;
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usNextHeaderOffset += sizeof(struct bcm_ipv6_routing_hdr);
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usNextHeaderOffset += pstIpv6RoutingHeader->ucNumAddresses * IPV6_ADDRESS_SIZEINBYTES;
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}
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break;
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case IPV6HDR_TYPE_FRAGMENTATION:
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{
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
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DBG_LVL_ALL,
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"\nIPv6 Fragmentation Header");
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usNextHeaderOffset += sizeof(struct bcm_ipv6_fragment_hdr);
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}
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break;
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case IPV6HDR_TYPE_DESTOPTS:
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{
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struct bcm_ipv6_dest_options_hdr *pstIpv6DestOptsHdr = (struct bcm_ipv6_dest_options_hdr *)pucPayloadPtr;
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int nTotalOptions = pstIpv6DestOptsHdr->ucHdrExtLen;
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
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DBG_LVL_ALL,
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"\nIPv6 DestOpts Header Header");
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usNextHeaderOffset += sizeof(struct bcm_ipv6_dest_options_hdr);
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usNextHeaderOffset += nTotalOptions * IPV6_DESTOPTS_HDR_OPTIONSIZE ;
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}
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break;
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case IPV6HDR_TYPE_AUTHENTICATION:
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{
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struct bcm_ipv6_authentication_hdr *pstIpv6AuthHdr = (struct bcm_ipv6_authentication_hdr *)pucPayloadPtr;
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int nHdrLen = pstIpv6AuthHdr->ucLength;
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
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DBG_LVL_ALL,
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"\nIPv6 Authentication Header");
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usNextHeaderOffset += nHdrLen * 4;
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}
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break;
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case IPV6HDR_TYPE_ENCRYPTEDSECURITYPAYLOAD:
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{
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
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DBG_LVL_ALL,
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"\nIPv6 Encrypted Security Payload Header");
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*bParseDone = TRUE;
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}
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break;
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case IPV6_ICMP_HDR_TYPE:
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{
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
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DBG_LVL_ALL, "\nICMP Header");
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*bParseDone = TRUE;
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}
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break;
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case TCP_HEADER_TYPE:
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{
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
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DBG_LVL_ALL, "\nTCP Header");
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*bParseDone = TRUE;
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}
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break;
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case UDP_HEADER_TYPE:
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{
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
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DBG_LVL_ALL, "\nUDP Header");
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*bParseDone = TRUE;
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}
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break;
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default:
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{
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*bParseDone = TRUE;
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}
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break;
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}
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if (*bParseDone == false) {
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if (*pusPayloadLength <= usNextHeaderOffset) {
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*bParseDone = TRUE;
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} else {
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*pucNextHeader = *pucPayloadPtr;
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pucPayloadPtr += usNextHeaderOffset;
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(*pusPayloadLength) -= usNextHeaderOffset;
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}
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}
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*ppucPayload = pucPayloadPtr;
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return pucRetHeaderPtr;
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}
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static UCHAR GetIpv6ProtocolPorts(UCHAR *pucPayload, USHORT *pusSrcPort,
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USHORT *pusDestPort, USHORT usPayloadLength, UCHAR ucNextHeader)
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{
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UCHAR *pIpv6HdrScanContext = pucPayload;
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bool bDone = false;
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UCHAR ucHeaderType = 0;
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UCHAR *pucNextHeader = NULL;
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struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
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if (!pucPayload || (usPayloadLength == 0))
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return 0;
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*pusSrcPort = *pusDestPort = 0;
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ucHeaderType = ucNextHeader;
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while (!bDone) {
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pucNextHeader = GetNextIPV6ChainedHeader(&pIpv6HdrScanContext,
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&ucHeaderType, &bDone, &usPayloadLength);
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if (bDone) {
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if ((ucHeaderType == TCP_HEADER_TYPE) ||
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(ucHeaderType == UDP_HEADER_TYPE)) {
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*pusSrcPort = *((PUSHORT)(pucNextHeader));
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*pusDestPort = *((PUSHORT)(pucNextHeader+2));
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
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DBG_LVL_ALL,
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"\nProtocol Ports - Src Port :0x%x Dest Port : 0x%x",
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ntohs(*pusSrcPort),
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ntohs(*pusDestPort));
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}
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break;
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}
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}
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return ucHeaderType;
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}
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/*
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* Arg 1 struct bcm_mini_adapter *Adapter is a pointer ot the driver contorl structure
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* Arg 2 PVOID pcIpHeader is a pointer to the IP header of the packet
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*/
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USHORT IpVersion6(struct bcm_mini_adapter *Adapter, PVOID pcIpHeader,
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struct bcm_classifier_rule *pstClassifierRule)
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{
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USHORT ushDestPort = 0;
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USHORT ushSrcPort = 0;
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UCHAR ucNextProtocolAboveIP = 0;
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struct bcm_ipv6_hdr *pstIpv6Header = NULL;
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bool bClassificationSucceed = false;
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
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DBG_LVL_ALL, "IpVersion6 ==========>\n");
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pstIpv6Header = pcIpHeader;
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DumpIpv6Header(pstIpv6Header);
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/*
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* Try to get the next higher layer protocol
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* and the Ports Nos if TCP or UDP
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*/
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ucNextProtocolAboveIP = GetIpv6ProtocolPorts((UCHAR *)(pcIpHeader + sizeof(struct bcm_ipv6_hdr)),
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&ushSrcPort,
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&ushDestPort,
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pstIpv6Header->usPayloadLength,
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pstIpv6Header->ucNextHeader);
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do {
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if (pstClassifierRule->ucDirection == 0) {
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/*
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* cannot be processed for classification.
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* it is a down link connection
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*/
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break;
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}
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if (!pstClassifierRule->bIpv6Protocol) {
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/*
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* We are looking for Ipv6 Classifiers
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* Lets ignore this classifier and try the next one
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*/
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break;
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}
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bClassificationSucceed = MatchSrcIpv6Address(pstClassifierRule,
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pstIpv6Header);
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if (!bClassificationSucceed)
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break;
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bClassificationSucceed = MatchDestIpv6Address(pstClassifierRule,
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pstIpv6Header);
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if (!bClassificationSucceed)
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break;
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/*
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* Match the protocol type.
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* For IPv6 the next protocol at end of
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* Chain of IPv6 prot headers
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*/
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bClassificationSucceed = MatchProtocol(pstClassifierRule,
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ucNextProtocolAboveIP);
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if (!bClassificationSucceed)
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break;
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
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DBG_LVL_ALL, "\nIPv6 Protocol Matched");
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if ((ucNextProtocolAboveIP == TCP_HEADER_TYPE) ||
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(ucNextProtocolAboveIP == UDP_HEADER_TYPE)) {
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/* Match Src Port */
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
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DBG_LVL_ALL, "\nIPv6 Source Port:%x\n",
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ntohs(ushSrcPort));
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bClassificationSucceed = MatchSrcPort(pstClassifierRule,
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ntohs(ushSrcPort));
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if (!bClassificationSucceed)
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break;
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
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DBG_LVL_ALL, "\nIPv6 Src Port Matched");
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/* Match Dest Port */
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
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DBG_LVL_ALL, "\nIPv6 Destination Port:%x\n",
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ntohs(ushDestPort));
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bClassificationSucceed = MatchDestPort(pstClassifierRule,
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ntohs(ushDestPort));
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if (!bClassificationSucceed)
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break;
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
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DBG_LVL_ALL, "\nIPv6 Dest Port Matched");
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}
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} while (0);
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if (bClassificationSucceed == TRUE) {
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INT iMatchedSFQueueIndex = 0;
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iMatchedSFQueueIndex = SearchSfid(Adapter, pstClassifierRule->ulSFID);
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if (iMatchedSFQueueIndex >= NO_OF_QUEUES) {
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bClassificationSucceed = false;
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} else {
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if (Adapter->PackInfo[iMatchedSFQueueIndex].bActive == false)
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bClassificationSucceed = false;
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}
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}
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return bClassificationSucceed;
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}
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static bool MatchSrcIpv6Address(struct bcm_classifier_rule *pstClassifierRule,
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struct bcm_ipv6_hdr *pstIpv6Header)
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{
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UINT uiLoopIndex = 0;
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UINT uiIpv6AddIndex = 0;
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UINT uiIpv6AddrNoLongWords = 4;
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ULONG aulSrcIP[4];
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struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
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/*
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* This is the no. of Src Addresses ie Range of IP Addresses contained
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* in the classifier rule for which we need to match
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*/
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UINT uiCountIPSrcAddresses = (UINT)pstClassifierRule->ucIPSourceAddressLength;
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if (uiCountIPSrcAddresses == 0)
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return TRUE;
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/* First Convert the Ip Address in the packet to Host Endian order */
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for (uiIpv6AddIndex = 0; uiIpv6AddIndex < uiIpv6AddrNoLongWords; uiIpv6AddIndex++)
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aulSrcIP[uiIpv6AddIndex] = ntohl(pstIpv6Header->ulSrcIpAddress[uiIpv6AddIndex]);
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for (uiLoopIndex = 0; uiLoopIndex < uiCountIPSrcAddresses; uiLoopIndex += uiIpv6AddrNoLongWords) {
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG, DBG_LVL_ALL,
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"\n Src Ipv6 Address In Received Packet :\n ");
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DumpIpv6Address(aulSrcIP);
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG, DBG_LVL_ALL,
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"\n Src Ipv6 Mask In Classifier Rule:\n");
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DumpIpv6Address(&pstClassifierRule->stSrcIpAddress.ulIpv6Mask[uiLoopIndex]);
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG, DBG_LVL_ALL,
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"\n Src Ipv6 Address In Classifier Rule :\n");
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DumpIpv6Address(&pstClassifierRule->stSrcIpAddress.ulIpv6Addr[uiLoopIndex]);
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for (uiIpv6AddIndex = 0; uiIpv6AddIndex < uiIpv6AddrNoLongWords; uiIpv6AddIndex++) {
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if ((pstClassifierRule->stSrcIpAddress.ulIpv6Mask[uiLoopIndex+uiIpv6AddIndex] & aulSrcIP[uiIpv6AddIndex])
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!= pstClassifierRule->stSrcIpAddress.ulIpv6Addr[uiLoopIndex+uiIpv6AddIndex]) {
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/*
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* Match failed for current Ipv6 Address
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* Try next Ipv6 Address
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*/
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break;
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}
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if (uiIpv6AddIndex == uiIpv6AddrNoLongWords-1) {
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/* Match Found */
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
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DBG_LVL_ALL,
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"Ipv6 Src Ip Address Matched\n");
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return TRUE;
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}
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}
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}
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return false;
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}
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static bool MatchDestIpv6Address(struct bcm_classifier_rule *pstClassifierRule,
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struct bcm_ipv6_hdr *pstIpv6Header)
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{
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UINT uiLoopIndex = 0;
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UINT uiIpv6AddIndex = 0;
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UINT uiIpv6AddrNoLongWords = 4;
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ULONG aulDestIP[4];
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struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
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/*
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* This is the no. of Destination Addresses
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* ie Range of IP Addresses contained in the classifier rule
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* for which we need to match
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*/
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UINT uiCountIPDestinationAddresses = (UINT)pstClassifierRule->ucIPDestinationAddressLength;
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if (uiCountIPDestinationAddresses == 0)
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return TRUE;
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/* First Convert the Ip Address in the packet to Host Endian order */
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for (uiIpv6AddIndex = 0; uiIpv6AddIndex < uiIpv6AddrNoLongWords; uiIpv6AddIndex++)
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aulDestIP[uiIpv6AddIndex] = ntohl(pstIpv6Header->ulDestIpAddress[uiIpv6AddIndex]);
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for (uiLoopIndex = 0; uiLoopIndex < uiCountIPDestinationAddresses; uiLoopIndex += uiIpv6AddrNoLongWords) {
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG, DBG_LVL_ALL,
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"\n Destination Ipv6 Address In Received Packet :\n ");
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DumpIpv6Address(aulDestIP);
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG, DBG_LVL_ALL,
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"\n Destination Ipv6 Mask In Classifier Rule :\n");
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DumpIpv6Address(&pstClassifierRule->stDestIpAddress.ulIpv6Mask[uiLoopIndex]);
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG, DBG_LVL_ALL,
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"\n Destination Ipv6 Address In Classifier Rule :\n");
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DumpIpv6Address(&pstClassifierRule->stDestIpAddress.ulIpv6Addr[uiLoopIndex]);
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for (uiIpv6AddIndex = 0; uiIpv6AddIndex < uiIpv6AddrNoLongWords; uiIpv6AddIndex++) {
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if ((pstClassifierRule->stDestIpAddress.ulIpv6Mask[uiLoopIndex+uiIpv6AddIndex] & aulDestIP[uiIpv6AddIndex])
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!= pstClassifierRule->stDestIpAddress.ulIpv6Addr[uiLoopIndex+uiIpv6AddIndex]) {
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/*
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* Match failed for current Ipv6 Address.
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* Try next Ipv6 Address
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*/
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break;
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}
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if (uiIpv6AddIndex == uiIpv6AddrNoLongWords-1) {
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/* Match Found */
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
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DBG_LVL_ALL,
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"Ipv6 Destination Ip Address Matched\n");
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return TRUE;
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}
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}
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}
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return false;
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}
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VOID DumpIpv6Address(ULONG *puIpv6Address)
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{
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UINT uiIpv6AddrNoLongWords = 4;
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UINT uiIpv6AddIndex = 0;
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struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
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for (uiIpv6AddIndex = 0; uiIpv6AddIndex < uiIpv6AddrNoLongWords; uiIpv6AddIndex++) {
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG, DBG_LVL_ALL,
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":%lx", puIpv6Address[uiIpv6AddIndex]);
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}
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}
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static VOID DumpIpv6Header(struct bcm_ipv6_hdr *pstIpv6Header)
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{
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UCHAR ucVersion;
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UCHAR ucPrio;
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struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG, DBG_LVL_ALL,
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"----Ipv6 Header---");
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ucVersion = pstIpv6Header->ucVersionPrio & 0xf0;
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG, DBG_LVL_ALL,
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"Version : %x\n", ucVersion);
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ucPrio = pstIpv6Header->ucVersionPrio & 0x0f;
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG, DBG_LVL_ALL,
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"Priority : %x\n", ucPrio);
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/*
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* BCM_DEBUG_PRINT( Adapter,DBG_TYPE_TX, IPV6_DBG, DBG_LVL_ALL,
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* "Flow Label : %x\n",(pstIpv6Header->ucVersionPrio &0xf0);
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*/
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG, DBG_LVL_ALL,
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"Payload Length : %x\n",
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ntohs(pstIpv6Header->usPayloadLength));
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG, DBG_LVL_ALL,
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"Next Header : %x\n", pstIpv6Header->ucNextHeader);
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG, DBG_LVL_ALL,
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"Hop Limit : %x\n", pstIpv6Header->ucHopLimit);
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG, DBG_LVL_ALL,
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"Src Address :\n");
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DumpIpv6Address(pstIpv6Header->ulSrcIpAddress);
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG, DBG_LVL_ALL,
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"Dest Address :\n");
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DumpIpv6Address(pstIpv6Header->ulDestIpAddress);
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG, DBG_LVL_ALL,
|
|
"----Ipv6 Header End---");
|
|
|
|
|
|
}
|