[network] [PATCH] Improve MTU handling on bridges

[network] [PATCH] Improve MTU handling on bridges

[Arne Fitzenreiter]

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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(a)ipfire.org>
---
 src/functions/functions.device | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/functions/functions.device b/src/functions/functions.device
index 571b1fb..a261335 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
-- 
2.6.3