525 lines
13 KiB
C
525 lines
13 KiB
C
/*
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* Copyright (c) 2001-2003 Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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* Author: Adam Dunkels <adam@sics.se>
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*
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*/
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#include <unistd.h>
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#include <fcntl.h>
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#include <getopt.h>
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#include "lwip/opt.h"
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#include "lwip/init.h"
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#include "lwip/mem.h"
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#include "lwip/memp.h"
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#include "lwip/sys.h"
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#include "lwip/stats.h"
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#include "lwip/tcp_impl.h"
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#include "lwip/inet_chksum.h"
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#include "lwip/tcpip.h"
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#include "lwip/sockets.h"
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#include "netif/tapif.h"
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#include "netif/tunif.h"
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#include "netif/unixif.h"
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#include "netif/dropif.h"
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#include "netif/pcapif.h"
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#include "netif/tcpdump.h"
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#if PPP_SUPPORT
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#include "netif/ppp/ppp.h"
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#define PPP_PTY_TEST 1
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#include <termios.h>
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#endif
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#include "lwip/ip_addr.h"
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#include "arch/perf.h"
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#include "httpd.h"
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#include "udpecho.h"
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#include "tcpecho.h"
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#include "shell.h"
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#if LWIP_RAW
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#include "lwip/icmp.h"
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#include "lwip/raw.h"
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#endif
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/* (manual) host IP configuration */
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static ip_addr_t ipaddr, netmask, gw;
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/* ping out destination cmd option */
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static unsigned char ping_flag;
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static ip_addr_t ping_addr;
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/* nonstatic debug cmd option, exported in lwipopts.h */
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unsigned char debug_flags;
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/** @todo add options for selecting netif, starting DHCP client etc */
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static struct option longopts[] = {
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/* turn on debugging output (if build with LWIP_DEBUG) */
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{"debug", no_argument, NULL, 'd'},
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/* help */
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{"help", no_argument, NULL, 'h'},
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/* gateway address */
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{"gateway", required_argument, NULL, 'g'},
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/* ip address */
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{"ipaddr", required_argument, NULL, 'i'},
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/* netmask */
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{"netmask", required_argument, NULL, 'm'},
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/* ping destination */
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{"ping", required_argument, NULL, 'p'},
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/* new command line options go here! */
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{NULL, 0, NULL, 0}
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};
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#define NUM_OPTS ((sizeof(longopts) / sizeof(struct option)) - 1)
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static void init_netifs(void);
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static void usage(void)
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{
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unsigned char i;
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printf("options:\n");
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for (i = 0; i < NUM_OPTS; i++) {
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printf("-%c --%s\n",longopts[i].val, longopts[i].name);
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}
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}
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#if 0
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static void
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tcp_debug_timeout(void *data)
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{
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LWIP_UNUSED_ARG(data);
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#if TCP_DEBUG
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tcp_debug_print_pcbs();
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#endif /* TCP_DEBUG */
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sys_timeout(5000, tcp_debug_timeout, NULL);
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}
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#endif
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static void
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tcpip_init_done(void *arg)
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{
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sys_sem_t *sem;
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sem = (sys_sem_t *)arg;
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init_netifs();
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sys_sem_signal(sem);
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}
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#if PPP_SUPPORT
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static void
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ppp_link_status_cb(ppp_pcb *pcb, int err_code, void *ctx)
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{
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LWIP_UNUSED_ARG(ctx);
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switch(err_code) {
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case PPPERR_NONE: /* No error. */
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{
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struct ppp_addrs *ppp_addrs = ppp_addrs(pcb);
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fprintf(stderr, "ppp_link_status_cb: PPPERR_NONE\n\r");
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fprintf(stderr, " our_ipaddr = %s\n\r", ip_ntoa(&ppp_addrs->our_ipaddr));
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fprintf(stderr, " his_ipaddr = %s\n\r", ip_ntoa(&ppp_addrs->his_ipaddr));
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fprintf(stderr, " netmask = %s\n\r", ip_ntoa(&ppp_addrs->netmask));
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fprintf(stderr, " dns1 = %s\n\r", ip_ntoa(&ppp_addrs->dns1));
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fprintf(stderr, " dns2 = %s\n\r", ip_ntoa(&ppp_addrs->dns2));
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#if PPP_IPV6_SUPPORT
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fprintf(stderr, " our6_ipaddr = %s\n\r", ip6addr_ntoa(&ppp_addrs->our6_ipaddr));
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fprintf(stderr, " his6_ipaddr = %s\n\r", ip6addr_ntoa(&ppp_addrs->his6_ipaddr));
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#endif /* PPP_IPV6_SUPPORT */
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}
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break;
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case PPPERR_PARAM: /* Invalid parameter. */
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printf("ppp_link_status_cb: PPPERR_PARAM\n");
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break;
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case PPPERR_OPEN: /* Unable to open PPP session. */
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printf("ppp_link_status_cb: PPPERR_OPEN\n");
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break;
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case PPPERR_DEVICE: /* Invalid I/O device for PPP. */
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printf("ppp_link_status_cb: PPPERR_DEVICE\n");
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break;
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case PPPERR_ALLOC: /* Unable to allocate resources. */
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printf("ppp_link_status_cb: PPPERR_ALLOC\n");
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break;
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case PPPERR_USER: /* User interrupt. */
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printf("ppp_link_status_cb: PPPERR_USER\n");
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break;
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case PPPERR_CONNECT: /* Connection lost. */
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printf("ppp_link_status_cb: PPPERR_CONNECT\n");
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break;
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case PPPERR_AUTHFAIL: /* Failed authentication challenge. */
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printf("ppp_link_status_cb: PPPERR_AUTHFAIL\n");
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break;
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case PPPERR_PROTOCOL: /* Failed to meet protocol. */
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printf("ppp_link_status_cb: PPPERR_PROTOCOL\n");
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break;
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case PPPERR_PEERDEAD: /* Connection timeout. */
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printf("ppp_link_status_cb: PPPERR_PEERDEAD\n");
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break;
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case PPPERR_IDLETIMEOUT: /* Idle Timeout. */
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printf("ppp_link_status_cb: PPPERR_IDLETIMEOUT\n");
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break;
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case PPPERR_CONNECTTIME: /* PPPERR_CONNECTTIME. */
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printf("ppp_link_status_cb: PPPERR_CONNECTTIME\n");
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break;
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case PPPERR_LOOPBACK: /* Connection timeout. */
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printf("ppp_link_status_cb: PPPERR_LOOPBACK\n");
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break;
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default:
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printf("ppp_link_status_cb: unknown errCode %d\n", err_code);
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break;
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}
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}
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#endif
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/*-----------------------------------------------------------------------------------*/
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/*-----------------------------------------------------------------------------------*/
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#if LWIP_RAW
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static int seq_num;
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#if 0
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/* Ping using the raw api */
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static int
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ping_recv(void *arg, struct raw_pcb *pcb, struct pbuf *p, ip_addr_t *addr)
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{
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printf("ping recv\n");
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return 1; /* eat the event */
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}
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static void
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ping_send(struct raw_pcb *raw, ip_addr_t *addr)
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{
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struct pbuf *p;
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struct icmp_echo_hdr *iecho;
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p = pbuf_alloc(PBUF_IP,sizeof(struct icmp_echo_hdr),PBUF_RAM);
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if (!p) return;
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iecho = p->payload;
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ICMPH_TYPE_SET(iecho,ICMP_ECHO);
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iecho->chksum = 0;
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iecho->seqno = htons(seq_num);
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iecho->chksum = inet_chksum(iecho, p->len);
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raw_send_to(raw,p,addr);
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pbuf_free(p);
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seq_num++;
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}
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static void
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ping_thread(void *arg)
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{
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struct raw_pcb *raw;
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if (!(raw = raw_new(IP_PROTO_ICMP))) return;
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raw_recv(raw,ping_recv,NULL);
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while (1)
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{
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printf("ping send\n");
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ping_send(raw,&ping_addr);
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sleep(1);
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}
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/* Never reaches this */
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raw_remove(raw);
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}
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#else
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/* Ping using the socket api */
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static void
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ping_send(int s, ip_addr_t *addr)
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{
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struct icmp_echo_hdr *iecho;
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struct sockaddr_in to;
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if (!(iecho = (struct icmp_echo_hdr *)malloc(sizeof(struct icmp_echo_hdr))))
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return;
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ICMPH_TYPE_SET(iecho,ICMP_ECHO);
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iecho->chksum = 0;
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iecho->seqno = htons(seq_num);
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iecho->chksum = inet_chksum(iecho, sizeof(*iecho));
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to.sin_len = sizeof(to);
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to.sin_family = AF_INET;
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to.sin_addr.s_addr = addr->addr;
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lwip_sendto(s,iecho,sizeof(*iecho),0,(struct sockaddr*)&to,sizeof(to));
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free(iecho);
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seq_num++;
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}
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static void
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ping_recv(int s, ip_addr_t *addr)
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{
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char buf[200];
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socklen_t fromlen;
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int len;
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struct sockaddr_in from;
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LWIP_UNUSED_ARG(addr);
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len = lwip_recvfrom(s, buf,sizeof(buf),0,(struct sockaddr*)&from,&fromlen);
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printf("Received %d bytes from %x\n",len,ntohl(from.sin_addr.s_addr));
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}
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static void
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ping_thread(void *arg)
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{
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int s;
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LWIP_UNUSED_ARG(arg);
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if ((s = lwip_socket(AF_INET, SOCK_RAW, IP_PROTO_ICMP)) < 0) {
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return;
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}
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while (1) {
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printf("sending ping\n");
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ping_send(s,&ping_addr);
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ping_recv(s,&ping_addr);
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sleep(1);
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}
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}
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#endif
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#endif
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struct netif netif;
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static void
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init_netifs(void)
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{
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#if PPP_SUPPORT
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sio_fd_t ppp_sio;
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ppp_pcb *ppp;
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#if PPP_PTY_TEST
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ppp_sio = sio_open(2);
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#else
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ppp_sio = sio_open(0);
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#endif
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if(!ppp_sio)
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{
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perror("Error opening device: ");
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exit(1);
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}
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ppp = ppp_new();
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if (!ppp)
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{
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printf("Could not create PPP control interface");
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exit(1);
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}
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#ifdef LWIP_PPP_CHAP_TEST
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ppp_set_auth(ppp, PPPAUTHTYPE_CHAP, "lwip", "mysecret");
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#endif
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ppp_over_serial_create(ppp, ppp_sio, ppp_link_status_cb, NULL);
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ppp_open(ppp, 0);
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#endif /* PPP_SUPPORT */
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#if LWIP_DHCP
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{
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IP4_ADDR(&gw, 0,0,0,0);
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IP4_ADDR(&ipaddr, 0,0,0,0);
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IP4_ADDR(&netmask, 0,0,0,0);
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netif_add(&netif, &ipaddr, &netmask, &gw, NULL, tapif_init,
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tcpip_input);
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netif_set_default(&netif);
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dhcp_start(&netif);
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}
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#else
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netif_set_default(netif_add(&netif,&ipaddr, &netmask, &gw, NULL, tapif_init,
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tcpip_input));
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netif_set_up(&netif);
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#endif
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#if LWIP_IPV6
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netif_create_ip6_linklocal_address(&netif, 1);
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#endif
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#if 0
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/* Only used for testing purposes: */
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netif_add(&ipaddr, &netmask, &gw, NULL, pcapif_init, tcpip_input);
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#endif
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#if LWIP_TCP
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tcpecho_init();
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shell_init();
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httpd_init();
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#endif
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#if LWIP_UDP
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udpecho_init();
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#endif
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/* sys_timeout(5000, tcp_debug_timeout, NULL);*/
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}
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/*-----------------------------------------------------------------------------------*/
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static void
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main_thread(void *arg)
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{
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sys_sem_t sem;
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LWIP_UNUSED_ARG(arg);
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if(sys_sem_new(&sem, 0) != ERR_OK) {
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LWIP_ASSERT("Failed to create semaphore", 0);
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}
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tcpip_init(tcpip_init_done, &sem);
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sys_sem_wait(&sem);
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printf("TCP/IP initialized.\n");
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#if LWIP_RAW
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/** @todo remove dependency on RAW PCB support */
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if(ping_flag) {
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sys_thread_new("ping_thread", ping_thread, NULL, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO);
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}
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#endif
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printf("Applications started.\n");
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#ifdef MEM_PERF
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mem_perf_init("/tmp/memstats.client");
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#endif /* MEM_PERF */
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#if 0
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stats_display();
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#endif
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/* Block forever. */
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sys_sem_wait(&sem);
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}
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/*-----------------------------------------------------------------------------------*/
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int
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main(int argc, char **argv)
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{
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struct in_addr inaddr;
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int ch;
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char ip_str[16] = {0}, nm_str[16] = {0}, gw_str[16] = {0};
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/* startup defaults (may be overridden by one or more opts) */
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IP4_ADDR(&gw, 192,168,0,1);
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IP4_ADDR(&netmask, 255,255,255,0);
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IP4_ADDR(&ipaddr, 192,168,0,2);
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ping_flag = 0;
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/* use debug flags defined by debug.h */
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debug_flags = LWIP_DBG_OFF;
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while ((ch = getopt_long(argc, argv, "dhg:i:m:p:", longopts, NULL)) != -1) {
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switch (ch) {
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case 'd':
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debug_flags |= (LWIP_DBG_ON|LWIP_DBG_TRACE|LWIP_DBG_STATE|LWIP_DBG_FRESH|LWIP_DBG_HALT);
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break;
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case 'h':
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usage();
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exit(0);
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break;
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case 'g':
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inet_aton(optarg, &inaddr);
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gw.addr = inaddr.s_addr;
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break;
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case 'i':
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inet_aton(optarg, &inaddr);
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ipaddr.addr = inaddr.s_addr;
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break;
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case 'm':
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inet_aton(optarg, &inaddr);
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netmask.addr = inaddr.s_addr;
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break;
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case 'p':
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ping_flag = !0;
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inet_aton(optarg, &inaddr);
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/* lwip inet.h oddity workaround */
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ping_addr.addr = inaddr.s_addr;
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strncpy(ip_str,inet_ntoa(inaddr),sizeof(ip_str));
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printf("Using %s to ping\n", ip_str);
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break;
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default:
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usage();
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break;
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}
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}
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argc -= optind;
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argv += optind;
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inaddr.s_addr = ipaddr.addr;
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strncpy(ip_str,inet_ntoa(inaddr),sizeof(ip_str));
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inaddr.s_addr = netmask.addr;
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strncpy(nm_str,inet_ntoa(inaddr),sizeof(nm_str));
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inaddr.s_addr = gw.addr;
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strncpy(gw_str,inet_ntoa(inaddr),sizeof(gw_str));
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printf("Host at %s mask %s gateway %s\n", ip_str, nm_str, gw_str);
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#ifdef PERF
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perf_init("/tmp/simhost.perf");
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#endif /* PERF */
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printf("System initialized.\n");
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sys_thread_new("main_thread", main_thread, NULL, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO);
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pause();
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return 0;
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}
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/*-----------------------------------------------------------------------------------*/
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