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authordlg <dlg@openbsd.org>2018-07-06 06:18:03 +0000
committerdlg <dlg@openbsd.org>2018-07-06 06:18:03 +0000
commit4bb91c93cd9cf7b48f874e979eeef4594107d955 (patch)
tree9208e0715061d364985523b5a7194f294f627e4e /usr.sbin/tcpdump/tcpdump.c
parentRework UDP parsing, particularly around IP addresses. (diff)
downloadwireguard-openbsd-4bb91c93cd9cf7b48f874e979eeef4594107d955.tar.xz
wireguard-openbsd-4bb91c93cd9cf7b48f874e979eeef4594107d955.zip
Add "gre" as a type to use with -T
This allows arbitrary UDP packets to be parsed as GRE packets.
Diffstat (limited to 'usr.sbin/tcpdump/tcpdump.c')
-rw-r--r--usr.sbin/tcpdump/tcpdump.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/usr.sbin/tcpdump/tcpdump.c b/usr.sbin/tcpdump/tcpdump.c
index 4fd60fc152e..54186aba5fb 100644
--- a/usr.sbin/tcpdump/tcpdump.c
+++ b/usr.sbin/tcpdump/tcpdump.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: tcpdump.c,v 1.83 2018/02/06 03:07:51 dlg Exp $ */
+/* $OpenBSD: tcpdump.c,v 1.84 2018/07/06 06:18:03 dlg Exp $ */
/*
* Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
@@ -347,6 +347,8 @@ main(int argc, char **argv)
packettype = PT_VRRP;
else if (strcasecmp(optarg, "tcp") == 0)
packettype = PT_TCP;
+ else if (strcasecmp(optarg, "gre") == 0)
+ packettype = PT_GRE;
else if (strcasecmp(optarg, "sack") == 0)
/*
* kept for compatibility; DEFAULT_SNAPLEN