552 lines
17 KiB
C
552 lines
17 KiB
C
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//=============================================================================
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// MODULE: cnp.c
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//
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// Description:
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//
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// Bloodhound Parser DLL for the Cluster Network Protocol
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//
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// Modification History
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//
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// Mike Massa 03/21/97 Created
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//=============================================================================
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#include "precomp.h"
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#pragma hdrstop
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//
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// Constants
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//
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#define CNP_VERSION_1 0x1 // original CNP
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#define CNP_VERSION_2 0x2 // original CNP + multicast
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#define CNP_VERSION_UNICAST CNP_VERSION_1
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#define CNP_VERSION_MULTICAST CNP_VERSION_2
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#define PROTOCOL_CDP 2
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#define PROTOCOL_CCMP 1
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#define ClusterAnyNodeId 0 // from clusdef.h
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//
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// Types
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//
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typedef struct {
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UCHAR Version;
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UCHAR NextHeader;
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USHORT PayloadLength;
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ULONG SourceAddress;
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ULONG DestinationAddress;
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} CNP_HEADER, *PCNP_HEADER;
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//
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// Multicast signature data.
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//
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#include <packon.h>
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typedef ULONG CL_NETWORK_ID, *PCL_NETWORK_ID;
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typedef struct {
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UCHAR Version;
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UCHAR Reserved;
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USHORT PayloadOffset;
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CL_NETWORK_ID NetworkId;
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ULONG ClusterNetworkBrand;
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USHORT SigBufferLen;
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UCHAR SigBuffer[1]; // dynamic
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} CNP_SIGNATURE, *PCNP_SIGNATURE;
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#include <packoff.h>
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//
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// Data
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//
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LPSTR CdpName = "CDP";
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LPSTR CcmpName = "CCMP";
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LPSTR UnknownProtocolName = "Unknown";
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//=============================================================================
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// Forward references.
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//=============================================================================
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VOID WINAPIV CnpFormatSummary(LPPROPERTYINST lpPropertyInst);
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DWORD WINAPIV CnpFormatSigData(LPPROPERTYINST lpPropertyInst);
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DWORD WINAPIV CnpFormatSignature(HFRAME hFrame,
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CNP_SIGNATURE UNALIGNED * CnpSig);
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//=============================================================================
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// CNP database.
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//=============================================================================
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#define CNP_SUMMARY 0
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#define CNP_VERSION 1
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#define CNP_NEXT_HEADER 2
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#define CNP_PAYLOAD_LENGTH 3
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#define CNP_SOURCE_ADDRESS 4
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#define CNP_DESTINATION_ADDRESS 5
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// CNP signature properties
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#define CNP_SIG_SIGDATA 6
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#define CNP_SIG_VERSION 7
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#define CNP_SIG_PAYLOADOFFSET 8
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#define CNP_SIG_NETWORK_ID 9
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#define CNP_SIG_NETWORK_BRAND 10
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#define CNP_SIG_SIGBUFFERLEN 11
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#define CNP_SIG_SIGNATURE 12
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PROPERTYINFO CnpDatabase[] =
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{
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{ // CNP_SUMMARY 0
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0,0,
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"Summary",
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"Summary of the CNP packet",
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PROP_TYPE_SUMMARY,
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PROP_QUAL_NONE,
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NULL,
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132,
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CnpFormatSummary},
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{ // CNP_VERSION 1
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0,0,
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"Version",
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"Version of CNP that created this packet",
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PROP_TYPE_BYTE,
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PROP_QUAL_NONE,
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NULL,
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80,
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FormatPropertyInstance},
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{ // CNP_NEXT_HEADER 2
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0,0,
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"Next Header",
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"Protocol ID of the header following the CNP header",
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PROP_TYPE_BYTE,
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PROP_QUAL_NONE,
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NULL,
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80,
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FormatPropertyInstance},
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{ // CNP_PAYLOAD_LENGTH 3
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0,0,
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"Payload Length",
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"Number of data bytes carried by the packet",
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PROP_TYPE_WORD,
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PROP_QUAL_NONE,
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NULL,
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80,
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FormatPropertyInstance},
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{ // CNP_SOURCE_ADDRESS 4
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0,0,
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"Source Address",
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"ID of the node which originated the packet",
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PROP_TYPE_DWORD,
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PROP_QUAL_NONE,
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NULL,
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80,
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FormatPropertyInstance},
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{ // CNP_DESTINATION_ADDRESS 5
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0,0,
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"Destination Address",
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"ID of the node for which the packet is destined",
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PROP_TYPE_DWORD,
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PROP_QUAL_NONE,
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NULL,
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80,
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FormatPropertyInstance},
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{ // CNP_SIG_SIGDATA 6
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0,0,
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"Signature Data",
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"CNP Multicast Signature Data",
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PROP_TYPE_SUMMARY,
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PROP_QUAL_NONE,
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NULL,
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80,
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CnpFormatSigData},
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{ // CNP_SIG_VERSION 7
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0,0,
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"Signature Version",
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"Identifies algorithm to sign and verify messages.",
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PROP_TYPE_BYTE,
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PROP_QUAL_NONE,
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NULL,
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80,
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FormatPropertyInstance},
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{ // CNP_SIG_PAYLOADOFFSET 8
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0,0,
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"Payload Offset",
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"Offset of message payload from start of CNP signature data",
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PROP_TYPE_WORD,
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PROP_QUAL_NONE,
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NULL,
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80,
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FormatPropertyInstance},
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{ // CNP_SIG_NETWORK_ID 9
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0,0,
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"Network ID",
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"Network ID number assigned by the cluster",
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PROP_TYPE_DWORD,
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PROP_QUAL_NONE,
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NULL,
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80,
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FormatPropertyInstance},
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{ // CNP_SIG_NETWORK_BRAND 10
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0,0,
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"Network Brand",
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"Pseudo-random 32-bit value differentiating this "
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"network from networks in other clusters",
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PROP_TYPE_DWORD,
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PROP_QUAL_NONE,
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NULL,
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80,
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FormatPropertyInstance},
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{ // CNP_SIG_SIGBUFFERLEN 11
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0,0,
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"Signature Buffer Length",
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"Length of signature buffer following node data",
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PROP_TYPE_WORD,
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PROP_QUAL_NONE,
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NULL,
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80,
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FormatPropertyInstance},
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{ // CNP_SIG_SIGNATURE 12
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0,0,
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"Signature",
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"Signature",
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PROP_TYPE_RAW_DATA,
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PROP_QUAL_NONE,
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NULL,
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80,
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FormatPropertyInstance},
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};
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DWORD nCnpProperties = ((sizeof CnpDatabase) / PROPERTYINFO_SIZE);
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//=============================================================================
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// FUNCTION: CnpRegister()
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//
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// Modification History
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//
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// Steve Hiskey 07/07/94 Created
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//=============================================================================
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VOID WINAPI CnpRegister(HPROTOCOL hCnpProtocol)
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{
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register DWORD i;
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//=========================================================================
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// Create the property database.
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//=========================================================================
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CreatePropertyDatabase(hCnpProtocol, nCnpProperties);
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for(i = 0; i < nCnpProperties; ++i)
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{
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AddProperty(hCnpProtocol, &CnpDatabase[i]);
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}
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}
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//=============================================================================
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// FUNCTION: Deregister()
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//
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// Modification History
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//
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// Steve Hiskey 07/07/94 Created
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//=============================================================================
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VOID WINAPI CnpDeregister(HPROTOCOL hCnpProtocol)
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{
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DestroyPropertyDatabase(hCnpProtocol);
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}
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//=============================================================================
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// FUNCTION: CnpRecognizeFrame()
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//
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// Modification History
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//
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// Steve Hiskey 07/07/94 Created
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//=============================================================================
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LPBYTE WINAPI CnpRecognizeFrame(HFRAME hFrame, //... frame handle.
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LPBYTE MacFrame, //... Frame pointer.
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LPBYTE MyFrame, //... Relative pointer.
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DWORD MacType, //... MAC type.
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DWORD BytesLeft, //... Bytes left.
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HPROTOCOL hPreviousProtocol, //... Previous protocol or NULL if none.
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DWORD nPreviousProtocolOffset, //... Offset of previous protocol.
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LPDWORD ProtocolStatusCode, //... Pointer to return status code in.
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LPHPROTOCOL hNextProtocol, //... Next protocol to call (optional).
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LPDWORD InstData) //... Next protocol instance data.
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{
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CNP_HEADER UNALIGNED * cnpHeader = (CNP_HEADER UNALIGNED *) MyFrame;
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CNP_SIGNATURE UNALIGNED * cnpSig = (CNP_SIGNATURE UNALIGNED *)(cnpHeader + 1);
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LPBYTE lpNextByte;
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if (cnpHeader->Version == CNP_VERSION_MULTICAST) {
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lpNextByte = (LPBYTE)cnpSig + cnpSig->PayloadOffset;
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} else {
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lpNextByte = (LPBYTE)cnpSig;
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}
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if (cnpHeader->NextHeader == PROTOCOL_CDP) {
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*hNextProtocol = hCdp;
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*ProtocolStatusCode = PROTOCOL_STATUS_NEXT_PROTOCOL;
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}
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else if (cnpHeader->NextHeader == PROTOCOL_CCMP) {
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*hNextProtocol = hCcmp;
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*ProtocolStatusCode = PROTOCOL_STATUS_NEXT_PROTOCOL;
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}
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else {
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*ProtocolStatusCode = PROTOCOL_STATUS_CLAIMED;
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}
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return lpNextByte;
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}
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//=============================================================================
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// FUNCTION: CnpAttachProperties()
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//
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// Modification History
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//
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// Steve Hiskey 07/07/94 Created
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//=============================================================================
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LPBYTE WINAPI CnpAttachProperties(HFRAME hFrame,
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LPBYTE Frame,
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LPBYTE MyFrame,
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DWORD MacType,
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DWORD BytesLeft,
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HPROTOCOL hPreviousProtocol,
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DWORD nPreviousProtocolOffset,
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DWORD InstData)
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{
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CNP_HEADER UNALIGNED * cnpHeader = (CNP_HEADER UNALIGNED *) MyFrame;
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AttachPropertyInstance(hFrame,
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CnpDatabase[CNP_SUMMARY].hProperty,
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sizeof(CNP_HEADER),
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cnpHeader,
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0, 0, 0);
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AttachPropertyInstance(hFrame,
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CnpDatabase[CNP_VERSION].hProperty,
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sizeof(BYTE),
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&(cnpHeader->Version),
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0, 1, 0);
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AttachPropertyInstance(hFrame,
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CnpDatabase[CNP_NEXT_HEADER].hProperty,
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sizeof(BYTE),
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&(cnpHeader->NextHeader),
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0, 1, 0);
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AttachPropertyInstance(hFrame,
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CnpDatabase[CNP_PAYLOAD_LENGTH].hProperty,
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sizeof(WORD),
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&(cnpHeader->PayloadLength),
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0, 1, 0);
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AttachPropertyInstance(hFrame,
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CnpDatabase[CNP_SOURCE_ADDRESS].hProperty,
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sizeof(DWORD),
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&(cnpHeader->SourceAddress),
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0, 1, 0);
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AttachPropertyInstance(hFrame,
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CnpDatabase[CNP_DESTINATION_ADDRESS].hProperty,
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sizeof(DWORD),
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&(cnpHeader->DestinationAddress),
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0, 1, 0);
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if (cnpHeader->Version == CNP_VERSION_MULTICAST) {
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CnpFormatSignature(hFrame,
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(CNP_SIGNATURE UNALIGNED *)(cnpHeader + 1)
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);
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}
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return NULL;
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}
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//==============================================================================
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// FUNCTION: CnpFormatSummary()
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//
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// Modification History
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//
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// Steve Hiskey 07/07/94 Created
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//==============================================================================
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VOID WINAPIV CnpFormatSummary(LPPROPERTYINST lpPropertyInst)
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{
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LPSTR SummaryStr;
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DWORD Length;
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LPSTR NextHeaderStr;
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CNP_HEADER UNALIGNED * cnpHeader =
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|
(CNP_HEADER UNALIGNED *) lpPropertyInst->lpData;
|
|||
|
|
|
|||
|
|
|
|||
|
|
if (cnpHeader->NextHeader == PROTOCOL_CDP) {
|
|||
|
|
NextHeaderStr = CdpName;
|
|||
|
|
}
|
|||
|
|
else if (cnpHeader->NextHeader == PROTOCOL_CCMP) {
|
|||
|
|
NextHeaderStr = CcmpName;
|
|||
|
|
}
|
|||
|
|
else {
|
|||
|
|
NextHeaderStr = UnknownProtocolName;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
Length = wsprintf( lpPropertyInst->szPropertyText,
|
|||
|
|
"Src = %u; Dst = %u; Proto = %s; Payload Len = %u",
|
|||
|
|
cnpHeader->SourceAddress,
|
|||
|
|
cnpHeader->DestinationAddress,
|
|||
|
|
NextHeaderStr,
|
|||
|
|
cnpHeader->PayloadLength
|
|||
|
|
);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
|
|||
|
|
//==============================================================================
|
|||
|
|
// FUNCTION: CnpFormatProperties()
|
|||
|
|
//
|
|||
|
|
// Modification History
|
|||
|
|
//
|
|||
|
|
// Steve Hiskey 07/07/94 Created
|
|||
|
|
//==============================================================================
|
|||
|
|
|
|||
|
|
DWORD WINAPI CnpFormatProperties(HFRAME hFrame,
|
|||
|
|
LPBYTE MacFrame,
|
|||
|
|
LPBYTE FrameData,
|
|||
|
|
DWORD nPropertyInsts,
|
|||
|
|
LPPROPERTYINST p)
|
|||
|
|
{
|
|||
|
|
//=========================================================================
|
|||
|
|
// Format each property in the property instance table.
|
|||
|
|
//
|
|||
|
|
// The property-specific instance data was used to store the address of a
|
|||
|
|
// property-specific formatting function so all we do here is call each
|
|||
|
|
// function via the instance data pointer.
|
|||
|
|
//=========================================================================
|
|||
|
|
|
|||
|
|
while (nPropertyInsts--)
|
|||
|
|
{
|
|||
|
|
((FORMAT) p->lpPropertyInfo->InstanceData)(p);
|
|||
|
|
|
|||
|
|
p++;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return NMERR_SUCCESS;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
//==============================================================================
|
|||
|
|
// FUNCTION: CnpFormatMcastSigData()
|
|||
|
|
//
|
|||
|
|
// Modification History
|
|||
|
|
//
|
|||
|
|
// David Dion 04/16/2001 Created
|
|||
|
|
//==============================================================================
|
|||
|
|
|
|||
|
|
DWORD WINAPIV CnpFormatSigData(LPPROPERTYINST lpPropertyInst)
|
|||
|
|
{
|
|||
|
|
wsprintf( lpPropertyInst->szPropertyText,
|
|||
|
|
"CNP Signature Data:"
|
|||
|
|
);
|
|||
|
|
|
|||
|
|
return NMERR_SUCCESS;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
|
|||
|
|
//==============================================================================
|
|||
|
|
// FUNCTION: CnpFormatSignature()
|
|||
|
|
//
|
|||
|
|
// Modification History
|
|||
|
|
//
|
|||
|
|
// David Dion 04/16/01 Created
|
|||
|
|
//==============================================================================
|
|||
|
|
|
|||
|
|
DWORD WINAPIV CnpFormatSignature(HFRAME hFrame,
|
|||
|
|
CNP_SIGNATURE UNALIGNED * CnpSig)
|
|||
|
|
{
|
|||
|
|
AttachPropertyInstance(hFrame,
|
|||
|
|
CnpDatabase[CNP_SIG_SIGDATA].hProperty,
|
|||
|
|
CnpSig->PayloadOffset,
|
|||
|
|
CnpSig,
|
|||
|
|
0, 1, 0);
|
|||
|
|
|
|||
|
|
AttachPropertyInstance(hFrame,
|
|||
|
|
CnpDatabase[CNP_SIG_VERSION].hProperty,
|
|||
|
|
sizeof(UCHAR),
|
|||
|
|
&(CnpSig->Version),
|
|||
|
|
0, 2, 0);
|
|||
|
|
|
|||
|
|
AttachPropertyInstance(hFrame,
|
|||
|
|
CnpDatabase[CNP_SIG_PAYLOADOFFSET].hProperty,
|
|||
|
|
sizeof(WORD),
|
|||
|
|
&(CnpSig->PayloadOffset),
|
|||
|
|
0, 2, 0);
|
|||
|
|
|
|||
|
|
AttachPropertyInstance(hFrame,
|
|||
|
|
CnpDatabase[CNP_SIG_NETWORK_ID].hProperty,
|
|||
|
|
sizeof(DWORD),
|
|||
|
|
&(CnpSig->NetworkId),
|
|||
|
|
0, 2, 0);
|
|||
|
|
|
|||
|
|
AttachPropertyInstance(hFrame,
|
|||
|
|
CnpDatabase[CNP_SIG_NETWORK_BRAND].hProperty,
|
|||
|
|
sizeof(DWORD),
|
|||
|
|
&(CnpSig->ClusterNetworkBrand),
|
|||
|
|
0, 2, 0);
|
|||
|
|
|
|||
|
|
AttachPropertyInstance(hFrame,
|
|||
|
|
CnpDatabase[CNP_SIG_SIGBUFFERLEN].hProperty,
|
|||
|
|
sizeof(WORD),
|
|||
|
|
&(CnpSig->SigBufferLen),
|
|||
|
|
0, 2, 0);
|
|||
|
|
|
|||
|
|
AttachPropertyInstance(hFrame,
|
|||
|
|
CnpDatabase[CNP_SIG_SIGNATURE].hProperty,
|
|||
|
|
CnpSig->SigBufferLen,
|
|||
|
|
&(CnpSig->SigBuffer[0]),
|
|||
|
|
0, 2, 0);
|
|||
|
|
|
|||
|
|
return NMERR_SUCCESS;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
//==============================================================================
|
|||
|
|
// FUNCTION: CnpIsMulticast()
|
|||
|
|
//
|
|||
|
|
// Modification History
|
|||
|
|
//
|
|||
|
|
// David Dion 04/16/2001 Created
|
|||
|
|
//==============================================================================
|
|||
|
|
|
|||
|
|
BOOLEAN WINAPIV CnpIsMulticast(
|
|||
|
|
HPROTOCOL hPreviousProtocol, //... Previous protocol or NULL if none.
|
|||
|
|
LPBYTE MacFrame, //... Frame pointer.
|
|||
|
|
DWORD nPreviousProtocolOffset //... Offset of previous protocol.
|
|||
|
|
)
|
|||
|
|
{
|
|||
|
|
CNP_HEADER UNALIGNED * cnpHeader;
|
|||
|
|
|
|||
|
|
cnpHeader = (CNP_HEADER UNALIGNED *)(MacFrame + nPreviousProtocolOffset);
|
|||
|
|
|
|||
|
|
return (BOOLEAN)(hPreviousProtocol == hCnp &&
|
|||
|
|
cnpHeader->DestinationAddress == ClusterAnyNodeId
|
|||
|
|
);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
|
|||
|
|
|