Archipelago » qemu

/* INFO (15) */          0,

/* INFO REPLY (16) */    0,

/* ADDR MASK (17) */     0,

};

/*

  register struct ip *ip=mtod(m, struct ip *);

  int icmplen=ip->ip_len;

  /* int code; */

  DEBUG_CALL("icmp_input");

  DEBUG_ARG("m = %lx", (long )m);

  DEBUG_ARG("m_len = %d", m->m_len);

  icmpstat.icps_received++;

  /*

   * Locate icmp structure in mbuf, and check

   * that its not corrupted and of at least minimum length.

  }

  m->m_len += hlen;

  m->m_data -= hlen;

  /*	icmpstat.icps_inhist[icp->icmp_type]++; */

  /* code = icp->icmp_code; */

      struct sockaddr_in addr;

      if ((so = socreate()) == NULL) goto freeit;

      if(udp_attach(so) == -1) {

		    errno,strerror(errno)));

	sofree(so);

	m_free(m);

      so->so_iptos = ip->ip_tos;

      so->so_type = IPPROTO_ICMP;

      so->so_state = SS_ISFCONNECTED;

      /* Send the packet */

      addr.sin_family = AF_INET;

      if ((so->so_faddr.s_addr & htonl(0xffffff00)) == special_addr.s_addr) {

		(struct sockaddr *)&addr, sizeof(addr)) == -1) {

	DEBUG_MISC((dfd,"icmp_input udp sendto tx errno = %d-%s\n",

		    errno,strerror(errno)));

	udp_detach(so);

      }

    } /* if ip->ip_dst.s_addr == alias_addr.s_addr */

    icmpstat.icps_notsupp++;

    m_freem(m);

    break;

  default:

    icmpstat.icps_badtype++;

    m_freem(m);

 * mbuf *msrc is used as a template, but is NOT m_free()'d.

 * It is reported as the bad ip packet.  The header should

 * be fully correct and in host byte order.

 * packet.  The maximum payload is 576-20(ip hdr)-8(icmp hdr)=548

 */

  /* check msrc */

  if(!msrc) goto end_error;

  ip = mtod(msrc, struct ip *);

  { char bufa[20], bufb[20];

    strcpy(bufa, inet_ntoa(ip->ip_src));

    strcpy(bufb, inet_ntoa(ip->ip_dst));

  /* make the header of the reply packet */

  ip  = mtod(m, struct ip *);

  hlen= sizeof(struct ip );     /* no options in reply */

  /* fill in icmp */

  m->m_len -= hlen;

  icp = mtod(m, struct icmp *);

  else if(s_ip_len>ICMP_MAXDATALEN)         /* maximum size */

    s_ip_len=ICMP_MAXDATALEN;

  /* min. size = 8+sizeof(struct ip)+8 */

  /* fill in ip */

  ip->ip_hl = hlen >> 2;

  ip->ip_len = m->m_len;

  ip->ip_tos=((ip->ip_tos & 0x1E) | 0xC0);  /* high priority for errors */

  ip->ip_ttl = MAXTTL;

  ip->ip_src = alias_addr;

  (void ) ip_output((struct socket *)NULL, m);

  icmpstat.icps_reflect++;

end_error: