202 lines
4 KiB
C
202 lines
4 KiB
C
/*++
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Copyright (c) 1995 Microsoft Corporation
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Module Name:
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routing\ip\rtrmgr\rtrdisc.h
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Abstract:
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Header file for router discover related stuff
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Revision History:
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Amritansh Raghav 20th Mar 1996 Created
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--*/
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#ifndef __RTRDISC_H__
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#define __RTRDISC_H__
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typedef struct _ICB ICB, *PICB;
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typedef struct _TIMER_QUEUE_ITEM
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{
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LIST_ENTRY leTimerLink;
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LARGE_INTEGER liFiringTime;
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}TIMER_QUEUE_ITEM, *PTIMER_QUEUE_ITEM;
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typedef struct _ROUTER_DISC_CB
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{
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WORD wMaxAdvtInterval;
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WORD wAdvtLifetime;
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BOOL bAdvertise;
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BOOL bActive;
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LONG lPrefLevel;
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DWORD dwNumAdvtsSent;
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DWORD dwNumSolicitationsSeen;
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TIMER_QUEUE_ITEM tqiTimer;
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BOOL bReplyPending;
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LARGE_INTEGER liMaxMinDiff;
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LARGE_INTEGER liMinAdvtIntervalInSysUnits;
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SOCKET *pRtrDiscSockets;
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}ROUTER_DISC_CB, *PROUTER_DISC_CB;
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//
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// Blocking mode socket with IP Multicast capability
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//
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#define RTR_DISC_SOCKET_FLAGS (WSA_FLAG_MULTIPOINT_C_LEAF|WSA_FLAG_MULTIPOINT_D_LEAF)
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#define ALL_ROUTERS_MULTICAST_GROUP ((DWORD)0x020000E0) //inet_addr("224.0.0.2")
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#define ALL_SYSTEMS_MULTICAST_GROUP ((DWORD)0x010000E0) //inet_addr("224.0.0.1")
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//#define ALL_SYSTEMS_MULTICAST_GROUP ((DWORD)0xFFFFFFFF) //inet_addr("224.0.0.1")
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#define ICMP_ROUTER_DISCOVERY_TYPE ((BYTE) 0x9)
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#define ICMP_ROUTER_DISCOVERY_CODE ((BYTE) 0x0)
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#define ICMP_ROUTER_DISCOVERY_ADDR_SIZE ((BYTE) 0x2)
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#include <packon.h>
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typedef struct _ICMP_ROUTER_SOL_MSG
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{
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BYTE byType;
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BYTE byCode;
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WORD wXSum;
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DWORD dwReserved;
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}ICMP_ROUTER_SOL_MSG, *PICMP_ROUTER_SOL_MSG;
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typedef struct _ICMP_ADVT
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{
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DWORD dwRtrIpAddr;
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LONG lPrefLevel;
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}ICMP_ADVT, *PICMP_ADVT;
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typedef struct _ICMP_ROUTER_ADVT_MSG
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{
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BYTE byType;
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BYTE byCode;
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WORD wXSum;
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BYTE byNumAddrs;
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BYTE byAddrEntrySize;
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WORD wLifeTime;
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ICMP_ADVT iaAdvt[1];
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}ICMP_ROUTER_ADVT_MSG, *PICMP_ROUTER_ADVT_MSG;
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#define SIZEOF_RTRDISC_ADVT(X) \
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(FIELD_OFFSET(ICMP_ROUTER_ADVT_MSG, iaAdvt[0]) + \
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((X) * sizeof(ICMP_ADVT)))
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typedef struct _IP_HEADER
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{
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BYTE byVerLen; // Version and length.
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BYTE byTos; // Type of service.
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WORD wLength; // Total length of datagram.
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WORD wId; // Identification.
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WORD wFlagOff; // Flags and fragment offset.
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BYTE byTtl; // Time to live.
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BYTE byProtocol; // Protocol.
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WORD wXSum; // Header checksum.
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DWORD dwSrc; // Source address.
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DWORD dwDest; // Destination address.
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}IP_HEADER, *PIP_HEADER;
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//
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// Max size of the IP Header in DWORDs
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//
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#include <packoff.h>
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#define MAX_LEN_HDR 15
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//
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// Take the largest ICMP packet that can be received to avoid getting
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// too many buffer size errors
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//
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#define ICMP_RCV_BUFFER_LEN ((2*MAX_LEN_HDR) + 2 +2)
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//
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// Function prototypes
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//
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VOID
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SetRouterDiscoveryInfo(
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IN PICB picb,
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IN PRTR_INFO_BLOCK_HEADER pInfoHdr
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);
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VOID
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InitializeRouterDiscoveryInfo(
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IN PICB picb,
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IN PRTR_INFO_BLOCK_HEADER pInfoHdr
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);
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DWORD
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GetInterfaceRouterDiscoveryInfo(
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PICB picb,
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PRTR_TOC_ENTRY pToc,
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PBYTE dataptr,
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PRTR_INFO_BLOCK_HEADER pInfoHdr,
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PDWORD pdwSize
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);
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DWORD
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ActivateRouterDiscovery(
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IN PICB picb
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);
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BOOL
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SetFiringTimeForAdvt(
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IN PICB picb
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);
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DWORD
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CreateSockets(
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IN PICB picb
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);
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DWORD
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UpdateAdvertisement(
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IN PICB picb
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);
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VOID
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HandleRtrDiscTimer(
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VOID
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);
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VOID
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HandleSolicitations(
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VOID
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);
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VOID
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AdvertiseInterface(
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IN PICB picb
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);
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WORD
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Compute16BitXSum(
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IN PVOID pvData,
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IN DWORD dwNumBytes
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);
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DWORD
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DeActivateRouterDiscovery(
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IN PICB picb
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);
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VOID
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SetFiringTimeForReply(
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IN PICB picb
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);
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#endif
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