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1.1.6

    1: /*
    2:  * Regression test for bugs such as reported in:
    3:  *   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=418975
    4:  *
    5:  * Copyright (c) 2009 Sam Roberts <sroberts@wurldtech.com>
    6:  * All rights reserved.
    7:  *
    8:  * Redistribution and use in source and binary forms, with or without
    9:  * modification, are permitted provided that the following conditions
   10:  * are met:
   11:  * 1. Redistributions of source code must retain the above copyright
   12:  *    notice, this list of conditions and the following disclaimer.
   13:  * 2. Redistributions in binary form must reproduce the above copyright
   14:  *    notice, this list of conditions and the following disclaimer in the
   15:  *    documentation and/or other materials provided with the distribution.
   16:  *
   17:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   18:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   19:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   20:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   21:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   22:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   23:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   24:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   25:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   26:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   27:  * SUCH DAMAGE.
   28:  *
   29:  */
   30: #if (HAVE_CONFIG_H)
   31: #include "../include/config.h"
   32: #endif
   33: #include "./libnet_test.h"
   34: 
   35: #include <assert.h>
   36: 
   37: #include <netinet/in.h>
   38: 
   39: static void print_pblocks(libnet_t* l)
   40: {
   41:     libnet_pblock_t* p = l->protocol_blocks;
   42: 
   43:     while(p) {
   44:         /* h_len is header length for checksumming? "chksum length"? */
   45:         printf("  tag %d flags %d type %20s/%#x buf %p b_len %2u h_len %2u copied %2u\n",
   46:                 p->ptag, p->flags,
   47:                 libnet_diag_dump_pblock_type(p->type), p->type,
   48:                 p->buf, p->b_len, p->h_len, p->copied);
   49:         p = p->next;
   50:     }
   51:     printf("  link_offset %d aligner %d total_size %u nblocks %d\n",
   52:             l->link_offset, l->aligner, l->total_size, l->n_pblocks);
   53: 
   54: }
   55: 
   56: int
   57: main(int argc, char *argv[])
   58: {
   59:     libnet_t *l;
   60:     int r;
   61:     char *device = "eth0";
   62:     struct libnet_ether_addr *mac_address;
   63:     struct in6_addr src_ip;
   64:     struct libnet_in6_addr dst_ip;
   65:     char errbuf[LIBNET_ERRBUF_SIZE];
   66:     libnet_ptag_t icmp_ptag = 0;
   67:     libnet_ptag_t ipv6_ptag = 0;
   68:     char payload[24] = { 0 };
   69: 
   70:     memset(&src_ip, 0x66, sizeof(src_ip));
   71: 
   72:     l = libnet_init( LIBNET_RAW6, device, errbuf);
   73: 
   74:     assert(l);
   75: 
   76:     mac_address = libnet_get_hwaddr(l);
   77:     assert(mac_address);
   78: 
   79:     dst_ip = libnet_name2addr6(l, "::1" /* BCAST_ADDR - defined where? */, LIBNET_DONT_RESOLVE);
   80: 
   81:     memcpy(payload,src_ip.s6_addr,16);
   82:     payload[16] = 2; /* 2 for Target Link-layer Address */
   83:     payload[17] = 1; /* The length of the option */
   84:     memcpy(payload+18,mac_address->ether_addr_octet, 6);
   85: 
   86:     /* 0x2000: RSO */
   87:     icmp_ptag = libnet_build_icmpv4_echo(
   88:             136,0,0,0x2000,0,
   89:             (uint8_t *)payload,sizeof(payload), l, LIBNET_PTAG_INITIALIZER);
   90:     assert(icmp_ptag);
   91: 
   92:     ipv6_ptag = libnet_build_ipv6(
   93:             0, 0,
   94:             LIBNET_ICMPV6_H + sizeof(payload), /* ICMPV6_H == ICMPV4_H, luckily */
   95:             IPPROTO_ICMP6,
   96:             255,
   97:             *(struct libnet_in6_addr*)&src_ip,
   98:             dst_ip,
   99:             NULL, 0,
  100:             l, 0);
  101:     assert(icmp_ptag);
  102: 
  103:     print_pblocks(l);
  104: 
  105:     {
  106:        uint8_t* pkt1 = NULL;
  107:        uint32_t pkt1_sz = 0;
  108:        r = libnet_pblock_coalesce(l, &pkt1, &pkt1_sz);
  109:        assert(r >= 0);
  110: 
  111:        libnet_diag_dump_hex(pkt1, LIBNET_IPV6_H, 0, stdout);
  112:        libnet_diag_dump_hex(pkt1+LIBNET_IPV6_H, pkt1_sz-LIBNET_IPV6_H, 0, stdout);
  113: 
  114:        free(pkt1);
  115:        pkt1 = NULL;
  116:     }
  117: 
  118:     r = libnet_write(l);
  119:     assert(r >= 0);
  120: 
  121:     return (EXIT_SUCCESS);
  122: }
  123: