Remove RFC1644 T/TCP support from the TCP side of the network stack.

A complete rationale and discussion is given in this message
and the resulting discussion:

 http://docs.freebsd.org/cgi/mid.cgi?4177C8AD.6060706

Note that this commit removes only the functional part of T/TCP
from the tcp_* related functions in the kernel.  Other features
introduced with RFC1644 are left intact (socket layer changes,
sendmsg(2) on connection oriented protocols)  and are meant to
be reused by a simpler and less intrusive reimplemention of the
previous T/TCP functionality.

Discussed on:	-arch

1 files changed, 0 insertions, 5 deletions

diff --git a/sys/netinet/ip_fw2.c b/sys/netinet/ip_fw2.c
index f963b81..e0bc321 100644
--- a/sys/netinet/ip_fw2.c
+++ b/sys/netinet/ip_fw2.c
@@ -412,11 +412,6 @@ tcpopts_match(struct ip *ip, ipfw_insn *cmd)
 			bits |= IP_FW_TCPOPT_TS;
 			break;
 
-		case TCPOPT_CC:
-		case TCPOPT_CCNEW:
-		case TCPOPT_CCECHO:
-			bits |= IP_FW_TCPOPT_CC;
-			break;
 		}
 	}
 	return (flags_match(cmd, bits));