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/*
* 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. 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 lwIP TCP/IP stack.
*
* Author: Dirk Ziegelmeier <dziegel@gmx.de>
*
*/
#include "lwip/dns.h"
#ifndef PPPOS_SUPPORT
#define PPPOS_SUPPORT 0
#endif /* PPPOS_SUPPORT */
#if PPPOS_SUPPORT
#include "netif/ppp/pppos.h"
#include "lwip/sio.h"
#define PPP_PTY_TEST 1
#endif /* PPPOS_SUPPORT */
#include "pppos_example.h"
#include <stdio.h>
#if PPPOS_SUPPORT
static sio_fd_t ppp_sio;
static ppp_pcb *ppp;
static struct netif pppos_netif;
static void
pppos_rx_thread(void *arg)
{
u32_t len;
u8_t buffer[128];
LWIP_UNUSED_ARG(arg);
/* Please read the "PPPoS input path" chapter in the PPP documentation. */
while (1) {
len = sio_read(ppp_sio, buffer, sizeof(buffer));
if (len > 0) {
/* Pass received raw characters from PPPoS to be decoded through lwIP
* TCPIP thread using the TCPIP API. This is thread safe in all cases
* but you should avoid passing data byte after byte. */
pppos_input_tcpip(ppp, buffer, len);
}
}
}
static void
ppp_link_status_cb(ppp_pcb *pcb, int err_code, void *ctx)
{
struct netif *pppif = ppp_netif(pcb);
LWIP_UNUSED_ARG(ctx);
switch(err_code) {
case PPPERR_NONE: /* No error. */
{
#if LWIP_DNS
const ip_addr_t *ns;
#endif /* LWIP_DNS */
fprintf(stderr, "ppp_link_status_cb: PPPERR_NONE\n\r");
#if LWIP_IPV4
fprintf(stderr, " our_ip4addr = %s\n\r", ip4addr_ntoa(netif_ip4_addr(pppif)));
fprintf(stderr, " his_ipaddr = %s\n\r", ip4addr_ntoa(netif_ip4_gw(pppif)));
fprintf(stderr, " netmask = %s\n\r", ip4addr_ntoa(netif_ip4_netmask(pppif)));
#endif /* LWIP_IPV4 */
#if LWIP_IPV6
fprintf(stderr, " our_ip6addr = %s\n\r", ip6addr_ntoa(netif_ip6_addr(pppif, 0)));
#endif /* LWIP_IPV6 */
#if LWIP_DNS
ns = dns_getserver(0);
fprintf(stderr, " dns1 = %s\n\r", ipaddr_ntoa(ns));
ns = dns_getserver(1);
fprintf(stderr, " dns2 = %s\n\r", ipaddr_ntoa(ns));
#endif /* LWIP_DNS */
#if PPP_IPV6_SUPPORT
fprintf(stderr, " our6_ipaddr = %s\n\r", ip6addr_ntoa(netif_ip6_addr(pppif, 0)));
#endif /* PPP_IPV6_SUPPORT */
}
break;
case PPPERR_PARAM: /* Invalid parameter. */
printf("ppp_link_status_cb: PPPERR_PARAM\n");
break;
case PPPERR_OPEN: /* Unable to open PPP session. */
printf("ppp_link_status_cb: PPPERR_OPEN\n");
break;
case PPPERR_DEVICE: /* Invalid I/O device for PPP. */
printf("ppp_link_status_cb: PPPERR_DEVICE\n");
break;
case PPPERR_ALLOC: /* Unable to allocate resources. */
printf("ppp_link_status_cb: PPPERR_ALLOC\n");
break;
case PPPERR_USER: /* User interrupt. */
printf("ppp_link_status_cb: PPPERR_USER\n");
break;
case PPPERR_CONNECT: /* Connection lost. */
printf("ppp_link_status_cb: PPPERR_CONNECT\n");
break;
case PPPERR_AUTHFAIL: /* Failed authentication challenge. */
printf("ppp_link_status_cb: PPPERR_AUTHFAIL\n");
break;
case PPPERR_PROTOCOL: /* Failed to meet protocol. */
printf("ppp_link_status_cb: PPPERR_PROTOCOL\n");
break;
case PPPERR_PEERDEAD: /* Connection timeout. */
printf("ppp_link_status_cb: PPPERR_PEERDEAD\n");
break;
case PPPERR_IDLETIMEOUT: /* Idle Timeout. */
printf("ppp_link_status_cb: PPPERR_IDLETIMEOUT\n");
break;
case PPPERR_CONNECTTIME: /* PPPERR_CONNECTTIME. */
printf("ppp_link_status_cb: PPPERR_CONNECTTIME\n");
break;
case PPPERR_LOOPBACK: /* Connection timeout. */
printf("ppp_link_status_cb: PPPERR_LOOPBACK\n");
break;
default:
printf("ppp_link_status_cb: unknown errCode %d\n", err_code);
break;
}
}
static u32_t
ppp_output_cb(ppp_pcb *pcb, const void *data, u32_t len, void *ctx)
{
LWIP_UNUSED_ARG(pcb);
LWIP_UNUSED_ARG(ctx);
return sio_write(ppp_sio, (const u8_t*)data, len);
}
#if LWIP_NETIF_STATUS_CALLBACK
static void
netif_status_callback(struct netif *nif)
{
printf("PPPNETIF: %c%c%d is %s\n", nif->name[0], nif->name[1], nif->num,
netif_is_up(nif) ? "UP" : "DOWN");
#if LWIP_IPV4
printf("IPV4: Host at %s ", ip4addr_ntoa(netif_ip4_addr(nif)));
printf("mask %s ", ip4addr_ntoa(netif_ip4_netmask(nif)));
printf("gateway %s\n", ip4addr_ntoa(netif_ip4_gw(nif)));
#endif /* LWIP_IPV4 */
#if LWIP_IPV6
printf("IPV6: Host at %s\n", ip6addr_ntoa(netif_ip6_addr(nif, 0)));
#endif /* LWIP_IPV6 */
#if LWIP_NETIF_HOSTNAME
printf("FQDN: %s\n", netif_get_hostname(nif));
#endif /* LWIP_NETIF_HOSTNAME */
}
#endif /* LWIP_NETIF_STATUS_CALLBACK */
#endif
void
pppos_example_init(void)
{
#if PPPOS_SUPPORT
#if PPP_PTY_TEST
ppp_sio = sio_open(2);
#else
ppp_sio = sio_open(0);
#endif
if(!ppp_sio)
{
perror("PPPOS example: Error opening device");
return;
}
ppp = pppos_create(&pppos_netif, ppp_output_cb, ppp_link_status_cb, NULL);
if (!ppp)
{
printf("PPPOS example: Could not create PPP control interface");
return;
}
#ifdef LWIP_PPP_CHAP_TEST
ppp_set_auth(ppp, PPPAUTHTYPE_CHAP, "lwip", "mysecret");
#endif
ppp_connect(ppp, 0);
#if LWIP_NETIF_STATUS_CALLBACK
netif_set_status_callback(&pppos_netif, netif_status_callback);
#endif /* LWIP_NETIF_STATUS_CALLBACK */
sys_thread_new("pppos_rx_thread", pppos_rx_thread, NULL, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO);
#endif /* PPPOS_SUPPORT */
}
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