From: Arne Fitzenreiter <arne_f@ipfire.org>
Date: Wed, 19 Oct 2016 20:28:22 +0000 (+0000)
Subject: Improve MTU handling on bridges
X-Git-Tag: 009~271
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3464bc8917b7146e1ffabc69a50ec10d6dfbece0;p=network.git

Improve MTU handling on bridges

When the MTU of a bridge is changed, device_set_mtu will
now change the MTU of all ports in that bridge, too.

This does not seem to be 100% necessary, but it makes it
clearer and probably avoids some other bugs.

Signed-off-by: Arne Fitzenreiter <arne_f@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
---

diff --git a/src/functions/functions.device b/src/functions/functions.device
index 571b1fb4..a261335b 100644
--- a/src/functions/functions.device
+++ b/src/functions/functions.device
@@ -659,6 +659,14 @@ device_set_mtu() {
 
 	assert device_exists ${device}
 
+	# Handle bridges differently
+	if device_is_bridge ${device}; then
+		local port
+		for port in $(bridge_get_members ${device}); do
+			device_set_mtu ${port} ${mtu}
+		done
+	fi
+
 	log INFO "Setting MTU of ${device} to ${mtu}"
 
 	local up