dist/ipf/ipsend/iptest.c

   1 /*      $NetBSD$        */
   2
   3 /*
   4  * ipsend.c (C) 1995-1998 Darren Reed
   5  *
   6  * See the IPFILTER.LICENCE file for details on licencing.
   7  *
   8  */
   9 #if !defined(lint)
  10 static const char sccsid[] = "%W% %G% (C)1995 Darren Reed";
  11 static const char rcsid[] = "@(#)Id: iptest.c,v 2.6 2004/01/08 13:34:31 darrenr Exp";
  12 #endif
  13 #include <sys/param.h>
  14 #include <sys/types.h>
  15 #include <sys/time.h>
  16 #include <sys/socket.h>
  17 #include <netinet/in.h>
  18 #include <arpa/inet.h>
  19 #include <netinet/in_systm.h>
  20 #include <netinet/ip.h>
  21 #ifndef linux
  22 #include <netinet/ip_var.h>
  23 #endif
  24 #ifdef  linux
  25 #include <linux/sockios.h>
  26 #endif
  27 #include <stdio.h>
  28 #include <netdb.h>
  29 #include <unistd.h>
  30 #include <stdlib.h>
  31 #include <string.h>
  32 #include "ipsend.h"
  33
  34
  35 extern  char    *optarg;
  36 extern  int     optind;
  37
  38 char    options[68];
  39 #ifdef  linux
  40 char    default_device[] = "eth0";
  41 #else
  42 # ifdef sun
  43 char    default_device[] = "le0";
  44 # else
  45 #  ifdef        ultrix
  46 char    default_device[] = "ln0";
  47 #  else
  48 #   ifdef       __bsdi__
  49 char    default_device[] = "ef0";
  50 #   else
  51 #    ifdef      __sgi
  52 char    default_device[] = "ec0";
  53 #    else
  54 char    default_device[] = "lan0";
  55 #    endif
  56 #   endif
  57 #  endif
  58 # endif
  59 #endif
  60
  61 static  void    usage __P((char *));
  62 int     main __P((int, char **));
  63
  64
  65 static void usage(prog)
  66 char *prog;
  67 {
  68         fprintf(stderr, "Usage: %s [options] dest\n\
  69 \toptions:\n\
  70 \t\t-d device\tSend out on this device\n\
  71 \t\t-g gateway\tIP gateway to use if non-local dest.\n\
  72 \t\t-m mtu\t\tfake MTU to use when sending out\n\
  73 \t\t-p pointtest\t\n\
  74 \t\t-s src\t\tsource address for IP packet\n\
  75 \t\t-1 \t\tPerform test 1 (IP header)\n\
  76 \t\t-2 \t\tPerform test 2 (IP options)\n\
  77 \t\t-3 \t\tPerform test 3 (ICMP)\n\
  78 \t\t-4 \t\tPerform test 4 (UDP)\n\
  79 \t\t-5 \t\tPerform test 5 (TCP)\n\
  80 \t\t-6 \t\tPerform test 6 (overlapping fragments)\n\
  81 \t\t-7 \t\tPerform test 7 (random packets)\n\
  82 ", prog);
  83         exit(1);
  84 }
  85
  86
  87 int main(argc, argv)
  88 int argc;
  89 char **argv;
  90 {
  91         struct  tcpiphdr *ti;
  92         struct  in_addr gwip;
  93         ip_t    *ip;
  94         char    *name =  argv[0], host[MAXHOSTNAMELEN + 1];
  95         char    *gateway = NULL, *dev = NULL;
  96         char    *src = NULL, *dst;
  97         int     mtu = 1500, tests = 0, pointtest = 0, c;
  98
  99         /*
 100          * 65535 is maximum packet size...you never know...
 101          */
 102         ip = (ip_t *)calloc(1, 65536);
 103         ti = (struct tcpiphdr *)ip;
 104         ip->ip_len = sizeof(*ip);
 105         IP_HL_A(ip, sizeof(*ip) >> 2);
 106
 107         while ((c = getopt(argc, argv, "1234567d:g:m:p:s:")) != -1)
 108                 switch (c)
 109                 {
 110                 case '1' :
 111                 case '2' :
 112                 case '3' :
 113                 case '4' :
 114                 case '5' :
 115                 case '6' :
 116                 case '7' :
 117                         tests = c - '0';
 118                         break;
 119                 case 'd' :
 120                         dev = optarg;
 121                         break;
 122                 case 'g' :
 123                         gateway = optarg;
 124                         break;
 125                 case 'm' :
 126                         mtu = atoi(optarg);
 127                         if (mtu < 28)
 128                             {
 129                                 fprintf(stderr, "mtu must be > 28\n");
 130                                 exit(1);
 131                             }
 132                         break;
 133                 case 'p' :
 134                         pointtest = atoi(optarg);
 135                         break;
 136                 case 's' :
 137                         src = optarg;
 138                         break;
 139                 default :
 140                         fprintf(stderr, "Unknown option \"%c\"\n", c);
 141                         usage(name);
 142                 }
 143
 144         if ((argc <= optind) || !argv[optind])
 145                 usage(name);
 146         dst = argv[optind++];
 147
 148         if (!src)
 149             {
 150                 gethostname(host, sizeof(host));
 151                 host[sizeof(host) - 1] = '\0';
 152                 src = host;
 153             }
 154
 155         if (resolve(dst, (char *)&ip->ip_dst) == -1)
 156             {
 157                 fprintf(stderr,"Cant resolve %s\n", dst);
 158                 exit(2);
 159             }
 160
 161         if (resolve(src, (char *)&ip->ip_src) == -1)
 162             {
 163                 fprintf(stderr,"Cant resolve %s\n", src);
 164                 exit(2);
 165             }
 166
 167         if (!gateway)
 168                 gwip = ip->ip_dst;
 169         else if (resolve(gateway, (char *)&gwip) == -1)
 170             {
 171                 fprintf(stderr,"Cant resolve %s\n", gateway);
 172                 exit(2);
 173             }
 174
 175
 176         if (!dev)
 177                 dev = default_device;
 178         printf("Device:  %s\n", dev);
 179         printf("Source:  %s\n", inet_ntoa(ip->ip_src));
 180         printf("Dest:    %s\n", inet_ntoa(ip->ip_dst));
 181         printf("Gateway: %s\n", inet_ntoa(gwip));
 182         printf("mtu:     %d\n", mtu);
 183
 184         switch (tests)
 185         {
 186         case 1 :
 187                 ip_test1(dev, mtu, (ip_t *)ti, gwip, pointtest);
 188                 break;
 189         case 2 :
 190                 ip_test2(dev, mtu, (ip_t *)ti, gwip, pointtest);
 191                 break;
 192         case 3 :
 193                 ip_test3(dev, mtu, (ip_t *)ti, gwip, pointtest);
 194                 break;
 195         case 4 :
 196                 ip_test4(dev, mtu, (ip_t *)ti, gwip, pointtest);
 197                 break;
 198         case 5 :
 199                 ip_test5(dev, mtu, (ip_t *)ti, gwip, pointtest);
 200                 break;
 201         case 6 :
 202                 ip_test6(dev, mtu, (ip_t *)ti, gwip, pointtest);
 203                 break;
 204         case 7 :
 205                 ip_test7(dev, mtu, (ip_t *)ti, gwip, pointtest);
 206                 break;
 207         default :
 208                 ip_test1(dev, mtu, (ip_t *)ti, gwip, pointtest);
 209                 ip_test2(dev, mtu, (ip_t *)ti, gwip, pointtest);
 210                 ip_test3(dev, mtu, (ip_t *)ti, gwip, pointtest);
 211                 ip_test4(dev, mtu, (ip_t *)ti, gwip, pointtest);
 212                 ip_test5(dev, mtu, (ip_t *)ti, gwip, pointtest);
 213                 ip_test6(dev, mtu, (ip_t *)ti, gwip, pointtest);
 214                 ip_test7(dev, mtu, (ip_t *)ti, gwip, pointtest);
 215                 break;
 216         }
 217         return 0;
 218 }