doc: payload-expression.txt: Mention that 'ih' exists

Back in commit b67abc51ba6f ("src: raw payload match and mangle on inner
header / payload data") a new payload expression 'ih' was added, but the
documentation wasn't updated accordingly.

Let's at least mention in the man page that it exists at all.

Signed-off-by: Harald Welte <laforge@gnumonks.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/doc/payload-expression.txt b/doc/payload-expression.txt
index 113f5bfc597c3aade42ff60fb63afc5a33b5ea41..9a761b71769ee40074170ed29cbe105b53908d36 100644 (file)
--- a/doc/payload-expression.txt
+++ b/doc/payload-expression.txt
@@ -556,6 +556,8 @@ Link layer, for example the Ethernet header
 Network header, for example IPv4 or IPv6
 |th|
 Transport Header, for example TCP
+|ih|
+Inner Header / Payload, i.e. after the L4 transport level header
 |==============================
 
 .Matching destination port of both UDP and TCP