Beispiel #1
0
void
forward_message(struct olsrv2 *olsr)
{
  const struct message_header* m_header = &olsr->message_header;
  olsr_pktbuf_t* msg = NULL;

  msg = olsr_pktbuf_alloc();
  olsr_pktbuf_clear(msg);

  /* TC should be forwarded all interface.
     but now, we forward only one interface.
     I'll correct later...  */
  build_message_header(olsr, msg, (olsr_u16_t)olsr->message_body_size,
      m_header->message_type,
      &m_header->orig_addr, m_header->ttl - 1, m_header->hop_count + 1,
      m_header->message_seq_num);


  if (m_header->message_type == TC_MESSAGE){
      olsr->stat.numTcRelayed++;
      if (DEBUG_OLSRV2){
        olsr_printf("Increment TC relayed to %d.\n",olsr->stat.numTcRelayed);
      }
  }

  olsr_pktbuf_append_byte_ary(msg, (olsr_u8_t* )olsr->message_body, olsr->message_body_size);


  if (DEBUG_OLSRV2){
      olsr_printf("TTL:%d\nhopcount:%d\nmsg_size:%d\n",m_header->ttl - 1,
                                    m_header->hop_count + 1, (int)msg->len);
  }

  if (m_header->message_type == TC_MESSAGE)
  {
      int ifNum;

      for(ifNum=0; ifNum<olsr->iface_num; ifNum++)
      {
      set_forward_infomation(olsr, msg->data, (unsigned int)msg->len,
          (unsigned char)ifNum);
      }
  }
  else
  {
      set_forward_infomation(olsr, msg->data, (unsigned int)msg->len,
          olsr->parsingIfNum);
  }

  olsr_pktbuf_free(&msg);
}
void
build_hello_msg(struct olsrv2 *olsr, olsr_pktbuf_t *pktbuf,
        union olsr_ip_addr *local_iface_addr
        )
{
  //olsr_u8_t *msg, *msg_head;
  //struct packet_header *p_header;
  //static olsr_pktbuf_t *msg_tlv_buf = NULL;
  //static olsr_pktbuf_t *addr_block_buf = NULL;
  //static olsr_pktbuf_t *local_addr_block_buf = NULL;
   olsr_pktbuf_t *msg_tlv_buf = NULL;
   olsr_pktbuf_t *addr_block_buf = NULL;
   olsr_pktbuf_t *local_addr_block_buf = NULL;

  // initialize buffers
  if (!msg_tlv_buf)
    msg_tlv_buf = olsr_pktbuf_alloc_with_capa(64);
  olsr_pktbuf_clear(msg_tlv_buf);

  if (!addr_block_buf)
    addr_block_buf = olsr_pktbuf_alloc_with_capa(64);
  olsr_pktbuf_clear(addr_block_buf);

  if(!local_addr_block_buf)
    local_addr_block_buf = olsr_pktbuf_alloc_with_capa(64);
  olsr_pktbuf_clear(local_addr_block_buf);

  if(DEBUG_OLSRV2)
  {
      olsr_printf("Building TLV for Validity Time.\n");
  }
  // build message TLVs
  build_message_tlv_validity_time(msg_tlv_buf,
                   double_to_me((double)olsr->qual_cnf->neighbor_hold_time));

  if(DEBUG_OLSRV2)
  {
      olsr_printf("Building TLV for Interval Time.\n");
  }
  build_message_tlv_interval_time(msg_tlv_buf,
                       double_to_me((double)olsr->qual_cnf->hello_interval));

  if(DEBUG_OLSRV2)
  {
      olsr_printf("Building TLV for Willingness.\n");
  }
  build_message_tlv_willingness(msg_tlv_buf, WILL_DEFAULT);


//codexxx
  if(DEBUG_OLSRV2)
	{
		olsr_printf("Building TLV for queue length info.\n");
	}
	build_message_tlv_queue(msg_tlv_buf, olsr->localqueuelen);

  // end codexxx

  if(DEBUG_OLSRV2)
  {
      olsr_printf("Building local interface address block.\n");
  }
  //build local interface address block
  build_local_addr_block(olsr, local_addr_block_buf,
             local_iface_addr);

  if(DEBUG_OLSRV2)
  {
      olsr_printf("Building {<addr-block> <tlv-block>}*.\n");
  }
  // build {<addr-block> <tlv-block>}*
  address_compress(olsr, addr_block_buf, HELLO_MESSAGE, SIMPLE_COMPRESS,
      local_iface_addr);

  if(DEBUG_OLSRV2)
  {
      olsr_printf("Append <msg-header> and <msg-header-info>.\n");
  }
  // append <msg-header> and <msg-header-info>
  build_message_header(olsr,
               pktbuf,
               (olsr_u16_t)(2 + msg_tlv_buf->len +
               local_addr_block_buf->len +
               addr_block_buf->len),// 2 is <tlv-length>
               HELLO_MESSAGE,
               local_iface_addr,
               1, 0, get_msg_seqno(olsr)); // wiss: TTL=1 hopcount=0 

  if(DEBUG_OLSRV2)
  {
      olsr_printf("Append <tlv-block>.\n");
  }
  // append msg <tlv-block>  wiss: to pkt buf ( to header and header info ya3ni) 
  olsr_pktbuf_append_u16(pktbuf, (olsr_u16_t)msg_tlv_buf->len);
  olsr_pktbuf_append_pktbuf(pktbuf, msg_tlv_buf);

  if(DEBUG_OLSRV2)
  {
      olsr_printf("Append local interface address block.\n");
  }
  // append local interface address block
  olsr_pktbuf_append_pktbuf(pktbuf, local_addr_block_buf);

  if(DEBUG_OLSRV2)
  {
    olsr_printf("Append {<addr-block> <tlv-block>}*.\n");
  }
  // append {<addr-block> <tlv-block>}*
  if(addr_block_buf != NULL)
    olsr_pktbuf_append_pktbuf(pktbuf, addr_block_buf);

  free(msg_tlv_buf->data);
  free(msg_tlv_buf);
  free(addr_block_buf->data);
  free(addr_block_buf);
  free(local_addr_block_buf->data);
  free(local_addr_block_buf);
}
void
build_tc_msg(struct olsrv2 *olsr, olsr_pktbuf_t *pktbuf,
    union olsr_ip_addr *local_iface_addr
    )
{
  //olsr_u8_t *msg, *msg_head;
  //struct packet_header *p_header;
  //static olsr_pktbuf_t *msg_tlv_buf = NULL;
  //static olsr_pktbuf_t *addr_block_buf = NULL;
  //static olsr_pktbuf_t *local_addr_block_buf = NULL;
  olsr_pktbuf_t *msg_tlv_buf = NULL;
  olsr_pktbuf_t *addr_block_buf = NULL;
  olsr_pktbuf_t *local_addr_block_buf = NULL;

  // initialize buffers
  if (!msg_tlv_buf)
    msg_tlv_buf = olsr_pktbuf_alloc_with_capa(64);
  olsr_pktbuf_clear(msg_tlv_buf);

  if (!addr_block_buf)
    addr_block_buf = olsr_pktbuf_alloc_with_capa(64);
  olsr_pktbuf_clear(addr_block_buf);

  if(!local_addr_block_buf)
    local_addr_block_buf = olsr_pktbuf_alloc_with_capa(64);
  olsr_pktbuf_clear(local_addr_block_buf);

  if(DEBUG_OLSRV2)
  {
      olsr_printf("Building TLV for Validity Time.\n");
  }
  // build message TLVs
  build_message_tlv_validity_time(msg_tlv_buf,
                   double_to_me((double)olsr->qual_cnf->topology_hold_time));

  if(DEBUG_OLSRV2)
  {
      olsr_printf("Building TLV for Interval Time.\n");
  }
  build_message_tlv_interval_time(msg_tlv_buf,
                          double_to_me((double)olsr->qual_cnf->tc_interval));

  if(DEBUG_OLSRV2)
  {
    olsr_printf("Building TLV for Content Sequence Number.\n");
  }
  build_message_tlv_content_seq_num(msg_tlv_buf, get_local_assn(olsr));


  /*//codexxx'
  if(DEBUG_OLSRV2)
	{
		olsr_printf("Building TLV for queue length info.\n");
	}
	build_message_tlv_queue(msg_tlv_buf, olsr->localqueuelen);

  // end codexxx'
  */

  if(DEBUG_OLSRV2)
  {
      olsr_printf("Building local interface address block.\n");
  }
  //build local interface address block
  build_local_addr_block(olsr, local_addr_block_buf,
             NULL);


  if(DEBUG_OLSRV2)
  {
      olsr_printf("Advertize attached network address.\n");
  }
  //advertize attached network address //wiss: bass haydi el partie jdide bel TC
  create_attached_network_address_block(olsr, addr_block_buf, TC_MESSAGE,
                    SIMPLE_COMPRESS,
                    local_iface_addr
                    );

  if(DEBUG_OLSRV2)
  {
      olsr_printf("Building {<addr-block> <tlv-block>}*.\n");
  }
  // build {<addr-block> <tlv-block>}*
  address_compress(olsr, addr_block_buf, TC_MESSAGE, SIMPLE_COMPRESS,
      local_iface_addr
      );

  /* build message header */  //wiss: append <msg-header> and <msg-header-info>
  build_message_header(olsr,
               pktbuf,
               (olsr_u16_t)(2 + msg_tlv_buf->len +
               local_addr_block_buf->len +
               addr_block_buf->len),    // 2 is <tlv-length>
               TC_MESSAGE,
               local_iface_addr,
               MAX_TTL, 0, get_msg_seqno(olsr));  //wiss: TTL bten2as kell ma yente2el men hop lal teni

  if(DEBUG_OLSRV2)
  {
      olsr_printf("Append <tlv-block>.\n");
  }
  // append <tlv-block>
  olsr_pktbuf_append_u16(pktbuf, (olsr_u16_t)msg_tlv_buf->len);
  olsr_pktbuf_append_pktbuf(pktbuf, msg_tlv_buf);

  if(DEBUG_OLSRV2)
  {
      olsr_printf("Append local interface address block.\n");
  }
  // append local interface address block
  olsr_pktbuf_append_pktbuf(pktbuf, local_addr_block_buf);

  if(DEBUG_OLSRV2)
  {
      olsr_printf("Append {<addr-block> <tlv-block>}*.\n");
  }
  // append {<addr-block> <tlv-block>}*
  olsr_pktbuf_append_pktbuf(pktbuf, addr_block_buf);

  free(msg_tlv_buf->data);
  free(msg_tlv_buf);
  free(addr_block_buf->data);
  free(addr_block_buf);
  free(local_addr_block_buf->data);
  free(local_addr_block_buf);
}