diff options
Diffstat (limited to 'main/linux-virt-grsec/0002-arp-flush-arp-cache-on-IFF_NOARP-change.patch')
| -rw-r--r-- | main/linux-virt-grsec/0002-arp-flush-arp-cache-on-IFF_NOARP-change.patch | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/main/linux-virt-grsec/0002-arp-flush-arp-cache-on-IFF_NOARP-change.patch b/main/linux-virt-grsec/0002-arp-flush-arp-cache-on-IFF_NOARP-change.patch new file mode 100644 index 0000000000..0e364f4718 --- /dev/null +++ b/main/linux-virt-grsec/0002-arp-flush-arp-cache-on-IFF_NOARP-change.patch @@ -0,0 +1,35 @@ +From 36fbd62c47d800705d9989c69994359711514165 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Timo=20Ter=C3=A4s?= <timo.teras@iki.fi> +Date: Thu, 23 May 2013 11:43:55 +0300 +Subject: [PATCH 2/6] arp: flush arp cache on IFF_NOARP change +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +IFF_NOARP affects what kind of neighbor entries are created +(nud NOARP or nud INCOMPLETE). If the flag changes, flush the arp +cache to refresh all entries. + +Signed-off-by: Timo Teräs <timo.teras@iki.fi> +--- + net/ipv4/arp.c | 4 ++++ + 1 file changed, 4 insertions(+) + +diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c +index fea4929..2a06ecf 100644 +--- a/net/ipv4/arp.c ++++ b/net/ipv4/arp.c +@@ -1226,6 +1226,10 @@ static int arp_netdev_event(struct notifier_block *this, unsigned long event, + neigh_changeaddr(&arp_tbl, dev); + rt_cache_flush(dev_net(dev)); + break; ++ case NETDEV_CHANGE: ++ if (dev->flags_changed & IFF_NOARP) ++ neigh_changeaddr(&arp_tbl, dev); ++ break; + default: + break; + } +-- +1.8.2.3 + |