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If we RX an OPEN with a bad ASN the NOTIFICATION we send should include the ASN

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This commit is contained in:
Donald Sharp 2015-05-19 18:03:52 -07:00
parent 94f342861d
commit c9e3a6f417
1 changed files with 14 additions and 6 deletions
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20
bgpd/bgp_packet.c
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@ -914,6 +914,7 @@ bgp_open_receive (struct peer *peer, bgp_size_t size)
struct in_addr remote_id;
int mp_capability;
u_int8_t notify_data_remote_as[2];
u_int8_t notify_data_remote_as4[4];
u_int8_t notify_data_remote_id[4];
u_int16_t *holdtime_ptr;
unsigned long local_addr;
@ -946,6 +947,7 @@ bgp_open_receive (struct peer *peer, bgp_size_t size)
* that we do not know which peer is connecting to us now.
*/
as4 = peek_for_as4_capability (peer, optlen);
memcpy (notify_data_remote_as4, &as4, 4);
}
/* Just in case we have a silly peer who sends AS4 capability set to 0 */
@ -953,8 +955,10 @@ bgp_open_receive (struct peer *peer, bgp_size_t size)
{
zlog_err ("%s bad OPEN, got AS4 capability, but AS4 set to 0",
peer->host);
bgp_notify_send (peer, BGP_NOTIFY_OPEN_ERR,
BGP_NOTIFY_OPEN_BAD_PEER_AS);
bgp_notify_send_with_data (peer,
BGP_NOTIFY_OPEN_ERR,
BGP_NOTIFY_OPEN_BAD_PEER_AS,
notify_data_remote_as4, 4);
return -1;
}
@ -968,8 +972,10 @@ bgp_open_receive (struct peer *peer, bgp_size_t size)
{
zlog_err ("%s [AS4] NEW speaker using AS_TRANS for AS4, not allowed",
peer->host);
bgp_notify_send (peer, BGP_NOTIFY_OPEN_ERR,
BGP_NOTIFY_OPEN_BAD_PEER_AS);
bgp_notify_send_with_data (peer,
BGP_NOTIFY_OPEN_ERR,
BGP_NOTIFY_OPEN_BAD_PEER_AS,
notify_data_remote_as4, 4);
return -1;
}
@ -993,8 +999,10 @@ bgp_open_receive (struct peer *peer, bgp_size_t size)
zlog_err ("%s bad OPEN, got AS4 capability, but remote_as %u"
" mismatch with 16bit 'myasn' %u in open",
peer->host, as4, remote_as);
bgp_notify_send (peer, BGP_NOTIFY_OPEN_ERR,
BGP_NOTIFY_OPEN_BAD_PEER_AS);
bgp_notify_send_with_data (peer,
BGP_NOTIFY_OPEN_ERR,
BGP_NOTIFY_OPEN_BAD_PEER_AS,
notify_data_remote_as4, 4);
return -1;
}
}