add initial support for handling geneve packets.

it's like vxlan, but different. the most interesting difference to
vxlan is that the protocol adds support for adding optional metadata
to packets (like nsh). this diff currently just skips that stuff
and just handles the payload. for now.

1 files changed, 4 insertions, 2 deletions

diff --git a/usr.sbin/tcpdump/tcpdump.8 b/usr.sbin/tcpdump/tcpdump.8
index c0eaea3c676..37402e53a27 100644
--- a/usr.sbin/tcpdump/tcpdump.8
+++ b/usr.sbin/tcpdump/tcpdump.8
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: tcpdump.8,v 1.110 2020/06/21 05:00:18 dlg Exp $
+.\"	$OpenBSD: tcpdump.8,v 1.111 2020/08/17 06:29:29 dlg Exp $
 .\"
 .\" Copyright (c) 1987, 1988, 1989, 1990, 1991, 1992, 1994, 1995, 1996
 .\"	The Regents of the University of California.  All rights reserved.
@@ -19,7 +19,7 @@
 .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 .\"
-.Dd $Mdocdate: June 21 2020 $
+.Dd $Mdocdate: August 17 2020 $
 .Dt TCPDUMP 8
 .Os
 .Sh NAME
@@ -238,6 +238,8 @@ Currently known types are:
 Cisco NetFlow protocol
 .It Cm erspan
 Cisco Encapsulated Remote Switch Port Analyzer (ERSPAN) over GRE
+.It Cm geneve
+Generic Network Virtualization Encapsulation
 .It Cm gre
 Generic Routing Encapsulation over UDP
 .It Cm mpls