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66 lines
2.6 KiB
66 lines
2.6 KiB
/********************************************************************/
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/** Microsoft LAN Manager **/
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/** Copyright(c) Microsoft Corp., 1990-1992 **/
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/********************************************************************/
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/* :ts=4 */
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//*** icmp.h - IP ICMP header.
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//
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// This module contains private ICMP definitions.
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//
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#pragma once
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#define PROT_ICMP 1
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#define ICMP_ECHO_RESP 0
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#define ICMP_ECHO 8
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#define ICMP_TIMESTAMP 13
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#define ICMP_TIMESTAMP_RESP 14
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#define MIN_ERRDATA_LENGTH 8 // Minimum amount of data we need.
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// Structure of an ICMP header.
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typedef struct ICMPHeader {
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uchar ich_type; // Type of ICMP packet.
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uchar ich_code; // Subcode of type.
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ushort ich_xsum; // Checksum of packet.
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ulong ich_param; // Type-specific parameter field.
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} ICMPHeader;
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typedef struct ICMPRouterAdHeader {
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uchar irah_numaddrs; // Number of addresses
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uchar irah_addrentrysize; // Address Entry Size
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ushort irah_lifetime; // Lifetime
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} ICMPRouterAdHeader;
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typedef struct ICMPRouterAdAddrEntry {
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IPAddr irae_addr; // Router Address
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long irae_preference; // Preference Level
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} ICMPRouterAdAddrEntry;
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typedef struct ICMPSendCompleteCtxt {
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uchar iscc_Type;
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uchar *iscc_DataPtr;
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} ICMPSendCompleteCtxt;
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typedef void (*EchoRtn)(struct EchoControl *, IP_STATUS, void *, uint, IPOptInfo *);
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typedef struct EchoControl {
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struct EchoControl *ec_next; // Next control structure in list.
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EchoRtn ec_rtn; // Pointer to routine to call when completing request.
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LARGE_INTEGER ec_starttime; // time request was issued
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void *ec_replybuf; // buffer to store replies
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ulong ec_replybuflen; // size of reply buffer
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ulong ec_to; // Timeout
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IPAddr ec_src; // IPAddr of source
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uint ec_seq; // Seq. # of this ping request. 32-bit
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// to reduce collisons from wraparound.
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uchar ec_active; // Set when packet has been sent
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} EchoControl;
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extern ICMPHeader *GetICMPBuffer(uint Size, PNDIS_BUFFER *Buffer);
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extern void FreeICMPBuffer(PNDIS_BUFFER Buffer, uchar Type);
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extern void ICMPSendComplete(ICMPSendCompleteCtxt *SCC, PNDIS_BUFFER BufferChain, IP_STATUS SendStatus);
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extern uint AddrMaskReply;
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