You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
79 lines
2.0 KiB
79 lines
2.0 KiB
#ifndef H__netpkt
|
|
#define H__netpkt
|
|
|
|
#include "netbasic.h"
|
|
|
|
/*
|
|
N E T P K T
|
|
|
|
NETPKT is the data structure sent across the variety of network
|
|
interfaces.
|
|
|
|
*/
|
|
typedef struct {
|
|
/* checksum of pkthdr. Set and checked in netintf only. */
|
|
DWORD np_cksHeader;
|
|
|
|
/* magic number of this connection ... unused at this time */
|
|
DWORD np_magicNum;
|
|
|
|
/* offset of this packet in a message. PKTZ level only. */
|
|
DWORD np_pktOffsInMsg;
|
|
|
|
/* size of overall message. PKTZ level only */
|
|
DWORD np_msgSize;
|
|
|
|
/* id of last packet received OK. PKTZ level only. Set when ready
|
|
to xmt */
|
|
PKTID np_lastPktOK;
|
|
|
|
/* last packet received. PKTZ level only. Set when ready to xmt */
|
|
PKTID np_lastPktRcvd;
|
|
|
|
/* size of packet excluding header. If 0, this indicates control pkt and
|
|
np_type should be NPKT_CONTROL. Only set/checked at pktz level */
|
|
WORD np_pktSize;
|
|
|
|
/* status of np_lastPktRcvd, one of:
|
|
PS_NO_INFO
|
|
PS_OK
|
|
PS_DATA_ERR
|
|
PS_MEMORY_ERR
|
|
PKTZ level only ... set when ready to xmt
|
|
*/
|
|
BYTE np_lastPktStatus;
|
|
|
|
/* either VERMETH_CRC16 or VERMETH_CKS32. This represents how the fields
|
|
np_cksData and np_cksHeader are calculated. Only played with at
|
|
netintf level */
|
|
BYTE np_verifyMethod;
|
|
|
|
/* either NPKT_ROUTER, NPKT_PKTZ or NPKT_CONTROL. Pktz level only */
|
|
BYTE np_type;
|
|
|
|
/* filler for byte-alignment problems */
|
|
BYTE np_filler[3];
|
|
|
|
/* packet ID of this packet. PKTZ level only */
|
|
PKTID np_pktID;
|
|
|
|
/* checksum of data portion of pkt. Only set and/or checked at
|
|
netintf level */
|
|
DWORD np_cksData;
|
|
} NETPKT;
|
|
typedef NETPKT FAR *LPNETPKT;
|
|
|
|
/* packet status */
|
|
#define PS_NO_INFO (1)
|
|
#define PS_OK (2)
|
|
#define PS_DATA_ERR (3)
|
|
#define PS_MEMORY_ERR (4)
|
|
#define PS_NO_RESPONSE (5)
|
|
|
|
/* packet type */
|
|
#define NPKT_ROUTER (1)
|
|
#define NPKT_PKTZ (2)
|
|
#define NPKT_CONTROL (3)
|
|
#define NPKT_NETIF (4)
|
|
|
|
#endif
|