ppp.h

PPP拨号协议简单实现 适用于MCU和无系统的嵌入式应用

#include "NetDef.h"

#define PPP_BUFFER_SIZE 1024

#define LCP_NORMAL 		0x01
#define LCP_TERMINAL	0x02
#define IPCP_NORMAL 	0x03
#define PPP_OK 		 	0x04
#define UDP_DATA 		0x11
#define TCP_DATA 		0x06
#define PPP_TO 			0x80
#define PPP_TML 		0x81

#define CLOSE_STATE 0x00
#define LCP_STATE 	0x01
#define PAP_STATE 	0x02
#define PAPOK_STATE 0x03
#define IPCP_STATE 	0x04

#define ESC 0x7D
#define END 0x7E

#define REQ 1
#define ACK 2
#define NAK 3
#define REJ 4
#define TERMINATE 5
#define TERMINATE_ACK 6

#define LCP_PACKET 0xC021
#define PAP_PACKET 0xC023
#define CHAP_PACKET 0xC223
#define IPCP_PACKET 0x8021
#define IP_DATAGRAM 0x0021
#define CCP_PACKET 0x80FD

#define PPPINITFCS16 0xffff     // Initial FCS value 
#define PPPGOODFCS16 0xf0b8     // Good final FCS value

//#define ICMP 0x01
#define UDP 0x11
//#define TCP 0x06

BYTE dial(char* ISPNo);
void msend(BYTE TheByte);
void delay(WORD dms);
BYTE mstimeout(LWORD *timep,LWORD msec);
BYTE read_mb(char* c);
void move (BYTE *src, BYTE *dest, register numBYTEs);
BYTE open_ppp(void);
BYTE poll_ppp(void);
BYTE ppp_fsm(void);
void ppp_init (void);
void send_firstlcp (void);
void ppp_terminate(void);
BYTE do_lcp (void);
BYTE ppp_receive (BYTE c);
void send_pap (BYTE Action, BYTE ID, char* user, char* password);
BYTE do_ipcp (void);
void send_ppp (BYTE *Buffer, int len);
//static WORD PPPfcs16 (WORD fcs, BYTE *cp, int len);
WORD ppp_checksum (register unsigned char *cp, register int len);
int ppp_disconnect(void);
int disconnect(void);