diff options
| author | wollman <wollman@FreeBSD.org> | 1994-08-26 22:27:16 +0000 |
|---|---|---|
| committer | wollman <wollman@FreeBSD.org> | 1994-08-26 22:27:16 +0000 |
| commit | 9489a8e21b05852697c1ba0cb2f1eb5b712ab5d6 (patch) | |
| tree | 3ae2edc49c3ba83ddc4ee96ff81515b95dbf5876 | |
| parent | bc652e20929b5cc726e4d55dc13f033e39c46287 (diff) | |
| download | FreeBSD-src-9489a8e21b05852697c1ba0cb2f1eb5b712ab5d6.zip FreeBSD-src-9489a8e21b05852697c1ba0cb2f1eb5b712ab5d6.tar.gz | |
Obey RFC 793, section 3.4:
Several examples of connection initiation follow. Although these
examples do not show connection synchronization using data-carrying
segments, this is perfectly legitimate, so long as the receiving TCP
doesn't deliver the data to the user until it is clear the data is
valid (i.e., the data must be buffered at the receiver until the
connection reaches the ESTABLISHED state).
| -rw-r--r-- | sys/netinet/tcp_fsm.h | 3 | ||||
| -rw-r--r-- | sys/netinet/tcp_input.c | 4 | ||||
| -rw-r--r-- | sys/netinet/tcp_reass.c | 4 |
3 files changed, 6 insertions, 5 deletions
diff --git a/sys/netinet/tcp_fsm.h b/sys/netinet/tcp_fsm.h index 45c7993..cbd07c5 100644 --- a/sys/netinet/tcp_fsm.h +++ b/sys/netinet/tcp_fsm.h @@ -31,7 +31,7 @@ * SUCH DAMAGE. * * @(#)tcp_fsm.h 8.1 (Berkeley) 6/10/93 - * $Id: tcp_fsm.h,v 1.2 1994/08/02 07:48:58 davidg Exp $ + * $Id: tcp_fsm.h,v 1.3 1994/08/21 05:27:36 paul Exp $ */ #ifndef _NETINET_TCP_FSM_H_ @@ -60,6 +60,7 @@ #define TCPS_TIME_WAIT 10 /* in 2*msl quiet wait after close */ #define TCPS_HAVERCVDSYN(s) ((s) >= TCPS_SYN_RECEIVED) +#define TCPS_HAVEESTABLISHED(s) ((s) >= TCPS_ESTABLISHED) #define TCPS_HAVERCVDFIN(s) ((s) >= TCPS_TIME_WAIT) #ifdef TCPOUTFLAGS diff --git a/sys/netinet/tcp_input.c b/sys/netinet/tcp_input.c index 674b7d9..68fc751 100644 --- a/sys/netinet/tcp_input.c +++ b/sys/netinet/tcp_input.c @@ -31,7 +31,7 @@ * SUCH DAMAGE. * * @(#)tcp_input.c 8.5 (Berkeley) 4/10/94 - * $Id: tcp_input.c,v 1.5 1994/08/02 07:49:01 davidg Exp $ + * $Id: tcp_input.c,v 1.6 1994/08/18 22:35:32 wollman Exp $ */ #ifndef TUBA_INCLUDE @@ -182,7 +182,7 @@ present: * Present data to user, advancing rcv_nxt through * completed sequence space. */ - if (TCPS_HAVERCVDSYN(tp->t_state) == 0) + if (TCPS_HAVEESTABLISHED(tp->t_state) == 0) return (0); ti = tp->seg_next; if (ti == (struct tcpiphdr *)tp || ti->ti_seq != tp->rcv_nxt) diff --git a/sys/netinet/tcp_reass.c b/sys/netinet/tcp_reass.c index 674b7d9..68fc751 100644 --- a/sys/netinet/tcp_reass.c +++ b/sys/netinet/tcp_reass.c @@ -31,7 +31,7 @@ * SUCH DAMAGE. * * @(#)tcp_input.c 8.5 (Berkeley) 4/10/94 - * $Id: tcp_input.c,v 1.5 1994/08/02 07:49:01 davidg Exp $ + * $Id: tcp_input.c,v 1.6 1994/08/18 22:35:32 wollman Exp $ */ #ifndef TUBA_INCLUDE @@ -182,7 +182,7 @@ present: * Present data to user, advancing rcv_nxt through * completed sequence space. */ - if (TCPS_HAVERCVDSYN(tp->t_state) == 0) + if (TCPS_HAVEESTABLISHED(tp->t_state) == 0) return (0); ti = tp->seg_next; if (ti == (struct tcpiphdr *)tp || ti->ti_seq != tp->rcv_nxt) |
