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authorJiri Pirko <jiri@resnulli.us>2014-01-07 14:55:45 (GMT)
committerDavid S. Miller <davem@davemloft.net>2014-01-07 20:55:17 (GMT)
commitdfd1582d1e4d117f46df720679d595f984ef902a (patch)
tree4047480cb28bde2699345808c5e38e488886cb95
parent509aba3b0d366b7f16a9a2eebac1156b25f5f622 (diff)
downloadlinux-dfd1582d1e4d117f46df720679d595f984ef902a.tar.xz
ipv4: loopback device: ignore value changes after device is upped
When lo is brought up, new ifa is created. Then, devconf and neigh values bitfield should be set so later changes of default values would not affect lo values. Note that the same behaviour is in ipv6. Also note that this is likely not an issue in many distros (for example Fedora 19) because userspace sets address to lo manually before bringing it up. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/ipv4/devinet.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 0feebd5..9809f7b 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -1385,6 +1385,8 @@ static int inetdev_event(struct notifier_block *this, unsigned long event,
memcpy(ifa->ifa_label, dev->name, IFNAMSIZ);
set_ifa_lifetime(ifa, INFINITY_LIFE_TIME,
INFINITY_LIFE_TIME);
+ ipv4_devconf_setall(in_dev);
+ neigh_parms_data_state_setall(in_dev->arp_parms);
inet_insert_ifa(ifa);
}
}