示例#1
0
/* Dump BGP status change. */
void
bgp_dump_state (struct peer *peer, int status_old, int status_new)
{
  struct stream *obuf;

  /* If dump file pointer is disabled return immediately. */
  if (bgp_dump_all.fp == NULL)
    return;

  /* Make dump stream. */
  obuf = bgp_dump_obuf;
  stream_reset (obuf);

  bgp_dump_header (obuf, MSG_PROTOCOL_BGP4MP, BGP4MP_STATE_CHANGE_AS4,
		   bgp_dump_all.type);
  bgp_dump_common (obuf, peer, 1);/* force this in as4speak*/

  stream_putw (obuf, status_old);
  stream_putw (obuf, status_new);

  /* Set length. */
  bgp_dump_set_size (obuf, MSG_PROTOCOL_BGP4MP);

  /* Write to the stream. */
  fwrite (STREAM_DATA (obuf), stream_get_endp (obuf), 1, bgp_dump_all.fp);
  fflush (bgp_dump_all.fp);
}
示例#2
0
void
bgp_dump_packet_func (struct bgp_dump *bgp_dump, struct peer *peer,
		      struct stream *packet)
{
  struct stream *obuf;

  /* If dump file pointer is disabled return immediately. */
  if (bgp_dump->fp == NULL)
    return;

  /* Make dump stream. */
  obuf = bgp_dump_obuf;
  stream_reset (obuf);

  /* Dump header and common part. */
  bgp_dump_header (obuf, MSG_PROTOCOL_BGP4MP, BGP4MP_MESSAGE);
  bgp_dump_common (obuf, peer);

  /* Packet contents. */
  stream_put (obuf, STREAM_DATA (packet), stream_get_endp (packet));
  
  /* Set length. */
  bgp_dump_set_size (obuf, MSG_PROTOCOL_BGP4MP);

  /* Write to the stream. */
  fwrite (STREAM_DATA (obuf), stream_get_putp (obuf), 1, bgp_dump->fp);
  fflush (bgp_dump->fp);
}
示例#3
0
/* Dump BGP status change. */
void
bgp_dump_state (struct peer *peer, int status_old, int status_new)
{
  int ret;
  struct stream *obuf;

  /* If dump file pointer is disabled return immediately. */
  if (bgp_dump_all.fp == NULL)
    return;

  /* Make dump stream. */
  obuf = bgp_dump_obuf;
  stream_reset (obuf);

  bgp_dump_header (obuf, MSG_PROTOCOL_BGP4MP, BGP4MP_STATE_CHANGE_AS4);
  bgp_dump_common (obuf, peer, 1);/* force this in as4speak*/

  stream_putw (obuf, status_old);
  stream_putw (obuf, status_new);

  /* Set length. */
  bgp_dump_set_size (obuf, MSG_PROTOCOL_BGP4MP);

  /* Write to the stream. */
  ret = fwrite (STREAM_DATA (obuf), stream_get_endp (obuf), 1, bgp_dump_all.fp);
  if (ret != 1)
    {
      zlog_warn ("bgp_dump_state: fwrite returned %d, expected 1: %s", ret, strerror (errno));
    }
  fflush (bgp_dump_all.fp);
}
示例#4
0
static void
bgp_dump_packet_func (struct bgp_dump *bgp_dump, struct peer *peer,
		      struct stream *packet)
{
  int ret;
  struct stream *obuf;

  /* If dump file pointer is disabled return immediately. */
  if (bgp_dump->fp == NULL)
    return;

  /* Make dump stream. */
  obuf = bgp_dump_obuf;
  stream_reset (obuf);

  /* Dump header and common part. */
  if (CHECK_FLAG (peer->cap, PEER_CAP_AS4_RCV) )
    { 
      bgp_dump_header (obuf, MSG_PROTOCOL_BGP4MP, BGP4MP_MESSAGE_AS4);
    }
  else
    {
      bgp_dump_header (obuf, MSG_PROTOCOL_BGP4MP, BGP4MP_MESSAGE);
    }
  bgp_dump_common (obuf, peer, 0);

  /* Packet contents. */
  stream_put (obuf, STREAM_DATA (packet), stream_get_endp (packet));
  
  /* Set length. */
  bgp_dump_set_size (obuf, MSG_PROTOCOL_BGP4MP);

  /* Write to the stream. */
  ret = fwrite (STREAM_DATA (obuf), stream_get_endp (obuf), 1, bgp_dump->fp);
  if (ret != 1)
    {
      zlog_warn ("bgp_dump_packet_func: fwrite returned %d, expected 1: %s", ret, strerror (errno));
    }
  fflush (bgp_dump->fp);
}
示例#5
0
/* Runs under child process. */
static unsigned int
bgp_dump_routes_func (int afi, int first_run, unsigned int seq)
{
  struct stream *obuf;
  struct bgp_info *info;
  struct bgp_node *rn;
  struct bgp *bgp;
  struct bgp_table *table;

  bgp = bgp_get_default ();
  if (!bgp)
    return seq;

  if (bgp_dump_routes.fp == NULL)
    return seq;

  /* Note that bgp_dump_routes_index_table will do ipv4 and ipv6 peers,
     so this should only be done on the first call to bgp_dump_routes_func.
     ( this function will be called once for ipv4 and once for ipv6 ) */
  if(first_run)
    bgp_dump_routes_index_table(bgp);

  obuf = bgp_dump_obuf;
  stream_reset(obuf);

  /* Walk down each BGP route. */
  table = bgp->rib[afi][SAFI_UNICAST];

  for (rn = bgp_table_top (table); rn; rn = bgp_route_next (rn))
    {
      if(!rn->info)
        continue;

      stream_reset(obuf);

      /* MRT header */
      if (afi == AFI_IP)
	bgp_dump_header (obuf, MSG_TABLE_DUMP_V2, TABLE_DUMP_V2_RIB_IPV4_UNICAST,
			 BGP_DUMP_ROUTES);
      else if (afi == AFI_IP6)
	bgp_dump_header (obuf, MSG_TABLE_DUMP_V2, TABLE_DUMP_V2_RIB_IPV6_UNICAST,
			 BGP_DUMP_ROUTES);

      /* Sequence number */
      stream_putl(obuf, seq);

      /* Prefix length */
      stream_putc (obuf, rn->p.prefixlen);

      /* Prefix */
      if (afi == AFI_IP)
        {
          /* We'll dump only the useful bits (those not 0), but have to align on 8 bits */
          stream_write(obuf, (u_char *)&rn->p.u.prefix4, (rn->p.prefixlen+7)/8);
        }
      else if (afi == AFI_IP6)
        {
          /* We'll dump only the useful bits (those not 0), but have to align on 8 bits */
          stream_write (obuf, (u_char *)&rn->p.u.prefix6, (rn->p.prefixlen+7)/8);
        }

      /* Save where we are now, so we can overwride the entry count later */
      int sizep = stream_get_endp(obuf);

      /* Entry count */
      uint16_t entry_count = 0;

      /* Entry count, note that this is overwritten later */
      stream_putw(obuf, 0);

      for (info = rn->info; info; info = info->next)
        {
          entry_count++;

          /* Peer index */
          stream_putw(obuf, info->peer->table_dump_index);

          /* Originated */
#ifdef HAVE_CLOCK_MONOTONIC
          stream_putl (obuf, time(NULL) - (bgp_clock() - info->uptime));
#else
          stream_putl (obuf, info->uptime);
#endif /* HAVE_CLOCK_MONOTONIC */

          /* Dump attribute. */
          /* Skip prefix & AFI/SAFI for MP_NLRI */
          bgp_dump_routes_attr (obuf, info->attr, &rn->p);
        }

      /* Overwrite the entry count, now that we know the right number */
      stream_putw_at (obuf, sizep, entry_count);

      seq++;

      bgp_dump_set_size(obuf, MSG_TABLE_DUMP_V2);
      fwrite (STREAM_DATA (obuf), stream_get_endp (obuf), 1, bgp_dump_routes.fp);

    }

  fflush (bgp_dump_routes.fp);

  return seq;
}
示例#6
0
static void
bgp_dump_routes_index_table(struct bgp *bgp)
{
  struct peer *peer;
  struct listnode *node;
  uint16_t peerno = 0;
  struct stream *obuf;

  obuf = bgp_dump_obuf;
  stream_reset (obuf);

  /* MRT header */
  bgp_dump_header (obuf, MSG_TABLE_DUMP_V2, TABLE_DUMP_V2_PEER_INDEX_TABLE,
		   BGP_DUMP_ROUTES);

  /* Collector BGP ID */
  stream_put_in_addr (obuf, &bgp->router_id);

  /* View name */
  if(bgp->name)
    {
      stream_putw (obuf, strlen(bgp->name));
      stream_put(obuf, bgp->name, strlen(bgp->name));
    }
  else
    {
      stream_putw(obuf, 0);
    }

  /* Peer count */
  stream_putw (obuf, listcount(bgp->peer));

  /* Walk down all peers */
  for(ALL_LIST_ELEMENTS_RO (bgp->peer, node, peer))
    {

      /* Peer's type */
      if (sockunion_family(&peer->su) == AF_INET)
        {
          stream_putc (obuf, TABLE_DUMP_V2_PEER_INDEX_TABLE_AS4+TABLE_DUMP_V2_PEER_INDEX_TABLE_IP);
        }
      else if (sockunion_family(&peer->su) == AF_INET6)
        {
          stream_putc (obuf, TABLE_DUMP_V2_PEER_INDEX_TABLE_AS4+TABLE_DUMP_V2_PEER_INDEX_TABLE_IP6);
        }

      /* Peer's BGP ID */
      stream_put_in_addr (obuf, &peer->remote_id);

      /* Peer's IP address */
      if (sockunion_family(&peer->su) == AF_INET)
        {
          stream_put_in_addr (obuf, &peer->su.sin.sin_addr);
        }
      else if (sockunion_family(&peer->su) == AF_INET6)
        {
          stream_write (obuf, (u_char *)&peer->su.sin6.sin6_addr,
                        IPV6_MAX_BYTELEN);
        }

      /* Peer's AS number. */
      /* Note that, as this is an AS4 compliant quagga, the RIB is always AS4 */
      stream_putl (obuf, peer->as);

      /* Store the peer number for this peer */
      peer->table_dump_index = peerno;
      peerno++;
    }

  bgp_dump_set_size(obuf, MSG_TABLE_DUMP_V2);

  fwrite (STREAM_DATA (obuf), stream_get_endp (obuf), 1, bgp_dump_routes.fp);
  fflush (bgp_dump_routes.fp);
}
示例#7
0
void
bgp_dump_routes_entry (struct prefix *p, struct bgp_info *info, int afi,
		       int type, unsigned int seq)
{
  struct stream *obuf;
  struct attr *attr;
  struct peer *peer;
  int plen;
  int safi = 0;

  /* Make dump stream. */
  obuf = bgp_dump_obuf;
  stream_reset (obuf);

  attr = info->attr;
  peer = info->peer;

  /* We support MRT's old format. */
  if (type == MSG_TABLE_DUMP)
    {
      bgp_dump_header (obuf, MSG_TABLE_DUMP, afi);
      stream_putw (obuf, 0);	/* View # */
      stream_putw (obuf, seq);	/* Sequence number. */
    }
  else
    {
      bgp_dump_header (obuf, MSG_PROTOCOL_BGP4MP, BGP4MP_ENTRY);
      
      stream_putl (obuf, info->uptime); /* Time Last Change */
      stream_putw (obuf, afi);	/* Address Family */
      stream_putc (obuf, safi);	/* SAFI */
    }

  if (afi == AFI_IP)
    {
      if (type == MSG_TABLE_DUMP)
	{
	  /* Prefix */
	  stream_put_in_addr (obuf, &p->u.prefix4);
	  stream_putc (obuf, p->prefixlen);

	  /* Status */
	  stream_putc (obuf, 1);

	  /* Originated */
	  stream_putl (obuf, info->uptime);

	  /* Peer's IP address */
	  stream_put_in_addr (obuf, &peer->su.sin.sin_addr);

	  /* Peer's AS number. */
	  stream_putw (obuf, peer->as);

	  /* Dump attribute. */
	  bgp_dump_routes_attr (obuf, attr, p);
	}
      else
	{
	  /* Next-Hop-Len */
	  stream_putc (obuf, IPV4_MAX_BYTELEN);
	  stream_put_in_addr (obuf, &attr->nexthop);
	  stream_putc (obuf, p->prefixlen);
	  plen = PSIZE (p->prefixlen);
	  stream_put (obuf, &p->u.prefix4, plen);
	  bgp_dump_routes_attr (obuf, attr, p);
	}
    }
#ifdef HAVE_IPV6
  else if (afi == AFI_IP6)
    {
      if (type == MSG_TABLE_DUMP)
	{
	  /* Prefix */
	  stream_write (obuf, (u_char *)&p->u.prefix6, IPV6_MAX_BYTELEN);
	  stream_putc (obuf, p->prefixlen);

	  /* Status */
	  stream_putc (obuf, 1);

	  /* Originated */
	  stream_putl (obuf, info->uptime);

	  /* Peer's IP address */
	  stream_write (obuf, (u_char *)&peer->su.sin6.sin6_addr,
			IPV6_MAX_BYTELEN);

	  /* Peer's AS number. */
	  stream_putw (obuf, peer->as);

	  /* Dump attribute. */
	  bgp_dump_routes_attr (obuf, attr, p);
	}
      else
	{
	  ;
	}
    }
#endif /* HAVE_IPV6 */

  /* Set length. */
  bgp_dump_set_size (obuf, type);

  fwrite (STREAM_DATA (obuf), stream_get_putp (obuf), 1, bgp_dump_routes.fp);
  fflush (bgp_dump_routes.fp);
}
示例#8
0
文件: bgp_dump.c 项目: KaloNK/quagga
static struct bgp_info *
bgp_dump_route_node_record (int afi, struct bgp_node *rn,
                            struct bgp_info *info, unsigned int seq)
{
  struct stream *obuf;
  size_t sizep;
  size_t endp;

  obuf = bgp_dump_obuf;
  stream_reset (obuf);

  /* MRT header */
  if (afi == AFI_IP)
    bgp_dump_header (obuf, MSG_TABLE_DUMP_V2, TABLE_DUMP_V2_RIB_IPV4_UNICAST,
                     BGP_DUMP_ROUTES);
  else if (afi == AFI_IP6)
    bgp_dump_header (obuf, MSG_TABLE_DUMP_V2, TABLE_DUMP_V2_RIB_IPV6_UNICAST,
                     BGP_DUMP_ROUTES);

  /* Sequence number */
  stream_putl (obuf, seq);

  /* Prefix length */
  stream_putc (obuf, rn->p.prefixlen);

  /* Prefix */
  if (afi == AFI_IP)
    {
      /* We'll dump only the useful bits (those not 0), but have to
       * align on 8 bits */
      stream_write (obuf, (u_char *) &rn->p.u.prefix4, 
                    (rn->p.prefixlen + 7) / 8);
    }
  else if (afi == AFI_IP6)
    {
      /* We'll dump only the useful bits (those not 0), but have to
       * align on 8 bits */
      stream_write (obuf, (u_char *) &rn->p.u.prefix6,
                    (rn->p.prefixlen + 7) / 8);
    }

  /* Save where we are now, so we can overwride the entry count later */
  sizep = stream_get_endp (obuf);

  /* Entry count */
  uint16_t entry_count = 0;

  /* Entry count, note that this is overwritten later */
  stream_putw (obuf, 0);

  endp = stream_get_endp (obuf);
  for (; info; info = info->next)
    {
      size_t cur_endp;

      /* Peer index */
      stream_putw (obuf, info->peer->table_dump_index);

      /* Originated */
#ifdef HAVE_CLOCK_MONOTONIC
      stream_putl (obuf, time (NULL) - (bgp_clock () - info->uptime));
#else
      stream_putl (obuf, info->uptime);
#endif /* HAVE_CLOCK_MONOTONIC */

      /* Dump attribute. */
      /* Skip prefix & AFI/SAFI for MP_NLRI */
      bgp_dump_routes_attr (obuf, info->attr, &rn->p);

      cur_endp = stream_get_endp (obuf);
      if (cur_endp > BGP_MAX_PACKET_SIZE + BGP_DUMP_MSG_HEADER
          + BGP_DUMP_HEADER_SIZE)
        {
          stream_set_endp (obuf, endp);
          break;
        }

      entry_count++;
      endp = cur_endp;
    }

  /* Overwrite the entry count, now that we know the right number */
  stream_putw_at (obuf, sizep, entry_count);

  bgp_dump_set_size (obuf, MSG_TABLE_DUMP_V2);
  fwrite (STREAM_DATA (obuf), stream_get_endp (obuf), 1, bgp_dump_routes.fp);

  return info;
}