static void
bgp_connect_timeout(timer *t)
{
struct bgp_conn *conn = t->data;
struct bgp_proto *p = conn->bgp;
DBG("BGP: connect_timeout\n");
if (p->p.proto_state == PS_START)
{
bgp_close_conn(conn);
bgp_connect(p);
}
else
bgp_conn_enter_idle_state(conn);
}
/* This function is the first starting point of all BGP connection. It
try to connect to remote peer with non-blocking IO. */
int
bgp_start (struct peer *peer)
{
int status;
/* If the peer is passive mode, force to move to Active mode. */
if (CHECK_FLAG (peer->flags, PEER_FLAG_PASSIVE))
{
BGP_EVENT_ADD (peer, TCP_connection_open_failed);
return 0;
}
status = bgp_connect (peer);
switch (status)
{
case connect_error:
if (BGP_DEBUG (fsm, FSM))
plog_info (peer->log, "%s [FSM] Connect error", peer->host);
BGP_EVENT_ADD (peer, TCP_connection_open_failed);
break;
case connect_success:
if (BGP_DEBUG (fsm, FSM))
plog_info (peer->log, "%s [FSM] Connect immediately success",
peer->host);
BGP_EVENT_ADD (peer, TCP_connection_open);
break;
case connect_in_progress:
/* To check nonblocking connect, we wait until socket is
readable or writable. */
if (BGP_DEBUG (fsm, FSM))
plog_info (peer->log, "%s [FSM] Non blocking connect waiting result",
peer->host);
if (peer->fd < 0)
{
zlog_err ("bgp_start peer's fd is negative value %d",
peer->fd);
return -1;
}
BGP_READ_ON (peer->t_read, bgp_read, peer->fd);
BGP_WRITE_ON (peer->t_write, bgp_write, peer->fd);
break;
}
return 0;
}
/* This function is the first starting point of all BGP connection. It
try to connect to remote peer with non-blocking IO. */
int
bgp_start (struct peer *peer)
{
int status;
if (BGP_PEER_START_SUPPRESSED (peer))
{
if (BGP_DEBUG (fsm, FSM))
plog_err (peer->log, "%s [FSM] Trying to start suppressed peer"
" - this is never supposed to happen!", peer->host);
return -1;
}
/* Scrub some information that might be left over from a previous,
* session
*/
/* Connection information. */
if (peer->su_local)
{
sockunion_free (peer->su_local);
peer->su_local = NULL;
}
if (peer->su_remote)
{
sockunion_free (peer->su_remote);
peer->su_remote = NULL;
}
/* Clear remote router-id. */
peer->remote_id.s_addr = 0;
/* Clear peer capability flag. */
peer->cap = 0;
/* If the peer is passive mode, force to move to Active mode. */
if (CHECK_FLAG (peer->flags, PEER_FLAG_PASSIVE))
{
BGP_EVENT_ADD (peer, TCP_connection_open_failed);
return 0;
}
status = bgp_connect (peer);
switch (status)
{
case connect_error:
if (BGP_DEBUG (fsm, FSM))
plog_debug (peer->log, "%s [FSM] Connect error", peer->host);
BGP_EVENT_ADD (peer, TCP_connection_open_failed);
break;
case connect_success:
if (BGP_DEBUG (fsm, FSM))
plog_debug (peer->log, "%s [FSM] Connect immediately success",
peer->host);
BGP_EVENT_ADD (peer, TCP_connection_open);
break;
case connect_in_progress:
/* To check nonblocking connect, we wait until socket is
readable or writable. */
if (BGP_DEBUG (fsm, FSM))
plog_debug (peer->log, "%s [FSM] Non blocking connect waiting result",
peer->host);
if (peer->fd < 0)
{
zlog_err ("bgp_start peer's fd is negative value %d",
peer->fd);
return -1;
}
BGP_READ_ON (peer->t_read, bgp_read, peer->fd);
BGP_WRITE_ON (peer->t_write, bgp_write, peer->fd);
break;
}
return 0;
}
