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