196 lines
5.7 KiB
C
196 lines
5.7 KiB
C
/*www.mycal.net
|
|
*---------------------------------------------------------------------------
|
|
*pap.c - PAP processor for the PPP module - -
|
|
*---------------------------------------------------------------------------
|
|
*Version - 0.1 Original Version Jun 3, 2000 - -
|
|
*---------------------------------------------------------------------------
|
|
*- Copyright (C) 2000, Mycal Labs www.mycal.com - -
|
|
*---------------------------------------------------------------------------
|
|
*/
|
|
/*
|
|
* Copyright (c) 2003, Mike Johnson, Mycal Labs, www.mycal.net
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Mike Johnson/Mycal Labs
|
|
* www.mycal.net.
|
|
* 4. The name of the author may not be used to endorse or promote
|
|
* products derived from this software without specific prior
|
|
* written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
|
|
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
|
|
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
|
|
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
|
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
|
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* This file is part of the Mycal Modified uIP TCP/IP stack.
|
|
*
|
|
* $Id: pap.c,v 1.1 2007/05/26 07:14:39 oliverschmidt Exp $
|
|
*
|
|
*/
|
|
|
|
/* */
|
|
/* include files */
|
|
/* */
|
|
|
|
#include <string.h>
|
|
#include "ppp.h"
|
|
#include "pap.h"
|
|
#include "lcp.h"
|
|
|
|
#if 0
|
|
#define DEBUG1(x)
|
|
#else
|
|
#include <stdio.h>
|
|
#define DEBUG1(x) debug_printf x
|
|
#endif
|
|
|
|
/*#include "time.h"*/
|
|
/*#include "utils.h" */
|
|
#define TIMER_expire()
|
|
#define TIMER_set()
|
|
#define TIMER_timeout(x) 1
|
|
|
|
|
|
u8_t pap_state;
|
|
|
|
#ifdef PAP_USERNAME
|
|
u8_t pap_username[] = PAP_USERNAME;
|
|
#else
|
|
u8_t pap_username[PAP_USERNAME_SIZE];
|
|
#endif
|
|
|
|
#ifdef PAP_PASSWORD
|
|
u8_t pap_password[] = PAP_PASSWORD;
|
|
#else
|
|
u8_t pap_password[PAP_PASSWORD_SIZE];
|
|
#endif
|
|
|
|
/*u16_t pap_tx_time;
|
|
u8_t pap_timeout;*/
|
|
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
pap_init(void)
|
|
{
|
|
ppp_retry = 0; /* We reuse ppp_retry */
|
|
pap_state = 0;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
/* pap_rx() - PAP RX protocol Handler */
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
pap_rx(u8_t *buffer, u16_t count)
|
|
{
|
|
u8_t *bptr=buffer;
|
|
u8_t len;
|
|
|
|
switch(*bptr++) {
|
|
case CONF_REQ:
|
|
DEBUG1(("CONF ACK - only for server, no support\n"));
|
|
break;
|
|
case CONF_ACK: /* config Ack */
|
|
DEBUG1(("CONF ACK - PAP good - "));
|
|
/* Display message if debug */
|
|
len = *bptr++;
|
|
*(bptr + len) = 0;
|
|
DEBUG1((" %s \n",bptr));
|
|
pap_state |= PAP_TX_UP;
|
|
/* expire the timer to make things happen after a state change */
|
|
TIMER_expire();
|
|
break;
|
|
case CONF_NAK:
|
|
DEBUG1(("CONF NAK - Failed Auth - "));
|
|
pap_state |= PAP_TX_AUTH_FAIL;
|
|
/* display message if debug */
|
|
len = *bptr++;
|
|
*(bptr + len)=0;
|
|
DEBUG1((" %s \n",bptr));
|
|
break;
|
|
}
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
/* pap_task() - This task needs to be called every so often during the PAP
|
|
* negotiation phase. This task sends PAP REQ packets.
|
|
*/
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
pap_task(u8_t *buffer)
|
|
{
|
|
u8_t *bptr;
|
|
u16_t t;
|
|
PAPPKT *pkt;
|
|
|
|
/* If LCP is up and PAP negotiated, try to bring up PAP */
|
|
if(!(pap_state & PAP_TX_UP) && !(pap_state & PAP_TX_TIMEOUT)) {
|
|
/* Do we need to send a PAP auth packet?
|
|
Check if we have a request pending*/
|
|
if(1 == TIMER_timeout(PAP_TIMEOUT)) {
|
|
/* Check if we have a request pending */
|
|
/* t=get_seconds()-pap_tx_time;
|
|
if( t > pap_timeout)
|
|
{
|
|
*/
|
|
/* We need to send a PAP authentication request */
|
|
DEBUG1(("\nSending PAP Request packet - "));
|
|
|
|
/* Build a PAP request packet */
|
|
pkt = (PAPPKT *)buffer;
|
|
|
|
/* Configure-Request only here, write id */
|
|
pkt->code = CONF_REQ;
|
|
pkt->id = ppp_id;
|
|
bptr = pkt->data;
|
|
|
|
/* Write options */
|
|
t = strlen(pap_username);
|
|
/* Write peer length */
|
|
*bptr++ = (u8_t)t;
|
|
bptr = memcpy(bptr, pap_username, t);
|
|
|
|
t = strlen(pap_password);
|
|
*bptr++ = (u8_t)t;
|
|
bptr = memcpy(bptr, pap_password, t);
|
|
|
|
/* Write length */
|
|
t = bptr - buffer;
|
|
/* length here - code and ID + */
|
|
pkt->len = htons(t);
|
|
|
|
DEBUG1((" Len %d\n",t));
|
|
|
|
/* Send packet */
|
|
ahdlc_tx(PAP, buffer, 0, t, 0);
|
|
|
|
/* Set timer */
|
|
TIMER_set();
|
|
|
|
ppp_retry++;
|
|
|
|
/* Have we failed? */
|
|
if(ppp_retry > 3) {
|
|
DEBUG1(("PAP - timout\n"));
|
|
pap_state &= PAP_TX_TIMEOUT;
|
|
|
|
}
|
|
}
|
|
}
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|