From 8b69d66b21f3699ee64c572bfba5df033ce768e0 Mon Sep 17 00:00:00 2001

From: Phil Sutter <phil@nwl.cc>

Date: Mon, 3 Dec 2018 14:52:28 +0100

Subject: [PATCH] extensions: libipt_realm: Document allowed realm values

Older versions of iptables allowed for negative realm values by accident

(they would be cast to unsigned). While this was clearly a bug, document

the fixed behaviour.

Signed-off-by: Phil Sutter <phil@nwl.cc>

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

(cherry picked from commit 290d76b443bf24999d9caacb3fdd027d6e7112a1)

Signed-off-by: Phil Sutter <psutter@redhat.com>

---

 extensions/libipt_realm.man | 2 ++

 1 file changed, 2 insertions(+)

diff --git a/extensions/libipt_realm.man b/extensions/libipt_realm.man

index a40b1adc72ba2..72dff9b2e4212 100644

--- a/extensions/libipt_realm.man

+++ b/extensions/libipt_realm.man

@@ -5,3 +5,5 @@ setups involving dynamic routing protocols like BGP.

 Matches a given realm number (and optionally mask). If not a number, value

 can be a named realm from /etc/iproute2/rt_realms (mask can not be used in

 that case).

+Both value and mask are four byte unsigned integers and may be specified in

+decimal, hex (by prefixing with "0x") or octal (if a leading zero is given).

-- 

2.21.0