From ce79e94a94afdadb090256df777940516eca40df Mon Sep 17 00:00:00 2001
From: Mark Wooding <mdw@distorted.org.uk>
Date: Fri, 15 Jul 2011 16:41:06 +0100
Subject: [PATCH] functions.m4, numbers.m4: Define protocol number for IPv6
 tunnelling.

---
 functions.m4 | 8 ++++++++
 numbers.m4   | 6 +++++-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/functions.m4 b/functions.m4
index c0cd0b3..5cc70f8 100644
--- a/functions.m4
+++ b/functions.m4
@@ -50,6 +50,14 @@ defport () {
   eval port_$name=$number
 }
 
+## defproto NAME NUMBER
+##
+## Define $proto_NAME to be NUMBER.
+defproto () {
+  name=$1 number=$2
+  eval proto_$name=$number
+}
+
 m4_divert(38)m4_dnl
 ###--------------------------------------------------------------------------
 ### Utility chains (used by function definitions).
diff --git a/numbers.m4 b/numbers.m4
index f17d768..cf92196 100644
--- a/numbers.m4
+++ b/numbers.m4
@@ -23,8 +23,9 @@
 
 m4_divert(25)m4_dnl
 ###--------------------------------------------------------------------------
-### Port numbers.
+### Magic numbers.
 
+## Port numbers.
 defport ftp_data 20
 defport ftp 21
 defport ssh 22
@@ -56,5 +57,8 @@ defport git 9418
 defport i2p 16911
 defport disorder 23599
 
+## Protocol numbers.
+defproto ipv6 41
+
 m4_divert(-1)
 ###----- That's all, folks --------------------------------------------------
-- 
2.11.0