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文库首页开发技术其它PPP协议源代码（This file contains the code for the PPP module）

PPP协议源代码（This file contains the code for the PPP module）

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PPP源代码、TCP/IP、移植 This file contains the code for the PPP module

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/*/////////////////////////////////////////////////////////////////////////////

File Name : PPP.C

Author : Rene Trenado

Location : Motorola Applications Lab, Baja California

Date Created : September 2000

Current Revision : 0.0

Notes : This file contains the code for the PPP module

/////////////////////////////////////////////////////////////////////////////*/

#include <iogp20.h>

#include <string.h>

#include "CommDrv.h"

#include "ppp.h"

#include "IP.h"

#include "Udp.h"

#include "ICMP.h"

const char * User = "MyName"; // Username of ISP account

const char * Password = "MyPassword"; // Password of username

/************************* Private Functions *************************/

static void HandleLCPOptions (void);

static void HandleIPCPOptions (void);

static WORD PPPfcs16 (WORD fcs, BYTE *cp, int len);

static void RejectProtocol (BYTE *InBuffer);

////////////////////// Protected ROM Data /////////////////////////

static const BYTE PPPData [] = {

0xff,0x03,0xc0,0x21,0x02,0x01,0x00,0x04,0x00,0x00

};

static const BYTE LCPTerminate[] = {

0xff,0x03,0xc0,0x21,0x05,0x04,0x00,0x04,0x80,0xfe

};

static const unsigned short fcstab[256] = {

0x0000, 0x1189, 0x2312, 0x329b, 0x4624, 0x57ad, 0x6536, 0x74bf,

0x8c48, 0x9dc1, 0xaf5a, 0xbed3, 0xca6c, 0xdbe5, 0xe97e, 0xf8f7,

0x1081, 0x0108, 0x3393, 0x221a, 0x56a5, 0x472c, 0x75b7, 0x643e,

0x9cc9, 0x8d40, 0xbfdb, 0xae52, 0xdaed, 0xcb64, 0xf9ff, 0xe876,

0x2102, 0x308b, 0x0210, 0x1399, 0x6726, 0x76af, 0x4434, 0x55bd,

0xad4a, 0xbcc3, 0x8e58, 0x9fd1, 0xeb6e, 0xfae7, 0xc87c, 0xd9f5,

0x3183, 0x200a, 0x1291, 0x0318, 0x77a7, 0x662e, 0x54b5, 0x453c,

0xbdcb, 0xac42, 0x9ed9, 0x8f50, 0xfbef, 0xea66, 0xd8fd, 0xc974,

0x4204, 0x538d, 0x6116, 0x709f, 0x0420, 0x15a9, 0x2732, 0x36bb,

0xce4c, 0xdfc5, 0xed5e, 0xfcd7, 0x8868, 0x99e1, 0xab7a, 0xbaf3,

0x5285, 0x430c, 0x7197, 0x601e, 0x14a1, 0x0528, 0x37b3, 0x263a,

0xdecd, 0xcf44, 0xfddf, 0xec56, 0x98e9, 0x8960, 0xbbfb, 0xaa72,

0x6306, 0x728f, 0x4014, 0x519d, 0x2522, 0x34ab, 0x0630, 0x17b9,

0xef4e, 0xfec7, 0xcc5c, 0xddd5, 0xa96a, 0xb8e3, 0x8a78, 0x9bf1,

0x7387, 0x620e, 0x5095, 0x411c, 0x35a3, 0x242a, 0x16b1, 0x0738,

0xffcf, 0xee46, 0xdcdd, 0xcd54, 0xb9eb, 0xa862, 0x9af9, 0x8b70,

0x8408, 0x9581, 0xa71a, 0xb693, 0xc22c, 0xd3a5, 0xe13e, 0xf0b7,

0x0840, 0x19c9, 0x2b52, 0x3adb, 0x4e64, 0x5fed, 0x6d76, 0x7cff,

0x9489, 0x8500, 0xb79b, 0xa612, 0xd2ad, 0xc324, 0xf1bf, 0xe036,

0x18c1, 0x0948, 0x3bd3, 0x2a5a, 0x5ee5, 0x4f6c, 0x7df7, 0x6c7e,

0xa50a, 0xb483, 0x8618, 0x9791, 0xe32e, 0xf2a7, 0xc03c, 0xd1b5,

0x2942, 0x38cb, 0x0a50, 0x1bd9, 0x6f66, 0x7eef, 0x4c74, 0x5dfd,

0xb58b, 0xa402, 0x9699, 0x8710, 0xf3af, 0xe226, 0xd0bd, 0xc134,

0x39c3, 0x284a, 0x1ad1, 0x0b58, 0x7fe7, 0x6e6e, 0x5cf5, 0x4d7c,

0xc60c, 0xd785, 0xe51e, 0xf497, 0x8028, 0x91a1, 0xa33a, 0xb2b3,

0x4a44, 0x5bcd, 0x6956, 0x78df, 0x0c60, 0x1de9, 0x2f72, 0x3efb,

0xd68d, 0xc704, 0xf59f, 0xe416, 0x90a9, 0x8120, 0xb3bb, 0xa232,

0x5ac5, 0x4b4c, 0x79d7, 0x685e, 0x1ce1, 0x0d68, 0x3ff3, 0x2e7a,

0xe70e, 0xf687, 0xc41c, 0xd595, 0xa12a, 0xb0a3, 0x8238, 0x93b1,

0x6b46, 0x7acf, 0x4854, 0x59dd, 0x2d62, 0x3ceb, 0x0e70, 0x1ff9,

0xf78f, 0xe606, 0xd49d, 0xc514, 0xb1ab, 0xa022, 0x92b9, 0x8330,

0x7bc7, 0x6a4e, 0x58d5, 0x495c, 0x3de3, 0x2c6a, 0x1ef1, 0x0f78

};

///////////////////// Public R A M Data /////////////////////////////

volatile BYTE PPPStatus = 0;

BYTE InBuffer [PPP_BUFFER_SIZE + 1];/// Input Buffer for PPP data

BYTE OutBuffer[PPP_BUFFER_SIZE + 1];/// Output Buffer for PPP

data

///////////////////// Protected R A M Data /////////////////////////

static BYTE *PPP_Packet = InBuffer;

static volatile BYTE FrameSize = 0;

static EventProc PPPEntryProc;

/***********************************************************************

Function : PPPInit

Parameters : None

Date : September 2000

Desc : Initialize the PPP Module(重新同步）

***********************************************************************/

void PPPInit (void) {

PPPStatus |= ReSync; //ReSync=0x04 Re Synchronize to avoid inconplete IP frame reception

}

/***********************************************************************

Function : PPPGetInputBuffer

Parameters : None

Date : September 2000

Desc : Returns a PPP Input Buffer pointer to caller

***********************************************************************/

BYTE *PPPGetInputBuffer (void) {

return &InBuffer[0];

}

/***********************************************************************

Function : PPPGetOutputBuffer

Parameters : None

Date : September 2000

Desc : Returns a pointer to PPP Output Buffer to caller

***********************************************************************/

BYTE *PPPGetOutputBuffer (void) {

return &OutBuffer[0];

}

/***********************************************************************

Function : PPPfcs16

Parameters : fcs: current fcs(checksum)

cp: pointer to PPP data

len: size of PPP data

Date : September 2000

Desc : Calculate a new fcs given the current fcs and the new data.

***********************************************************************/

static WORD PPPfcs16 (WORD fcs, BYTE *cp, int len){

while (len--)

fcs = (fcs >> 8) ^ fcstab[(fcs ^ *cp++) & 0xff]; //^ 位异或

return (fcs);

}

/***********************************************************************

Function : public PPPGetChecksum

Parameters : cp: A pinter to the PPP Packet

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评论星级较低，若资源使用遇到问题可联系上传者，3个工作日内问题未解决可申请退款~

xiquanxyz

2013-05-13

可以参考一下，还好是C的程序，可以看懂一点
tuzhh

2011-10-25

这不是一个完整的源码，只是跟PPP相关的一部分。只能做参考，其中的代码没法直接使用。有一个“PPP协议C语言源程序.rar”，虽然也有几个文件缺失，但比这个资源要有用的多。
鸡冠花

2014-06-25

不错的源码，已经在用，推荐下载
灰色月光

2012-10-24

可以用来参考只是我看不懂很乱
lmcliuyutc

2012-09-05

可以用来做参考