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authorJiri Pirko <jiri@resnulli.us>2013-12-07 19:26:57 +0100
committerDavid S. Miller <davem@davemloft.net>2013-12-09 20:56:12 -0500
commitbba24896f022d4d239494bebf18e713cd8aec7a5 (patch)
tree03fc9ec1ff30dcc822c1a7ff421b69b1e9228502
parent1d4c8c29841b9991cdf3c7cc4ba7f96a94f104ca (diff)
neigh: ipv6: respect default values set before an address is assigned to device
Make the behaviour similar to ipv4. This will allow user to set sysctl default neigh param values and these values will be respected even by devices registered before (that ones what do not have address set yet). Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--include/net/addrconf.h7
-rw-r--r--net/core/neighbour.c7
-rw-r--r--net/ipv6/addrconf.c2
3 files changed, 15 insertions, 1 deletions
diff --git a/include/net/addrconf.h b/include/net/addrconf.h
index e70278eef12a..66c4a44d8f5c 100644
--- a/include/net/addrconf.h
+++ b/include/net/addrconf.h
@@ -248,6 +248,13 @@ static inline struct inet6_dev *in6_dev_get(const struct net_device *dev)
return idev;
}
+static inline struct neigh_parms *__in6_dev_nd_parms_get_rcu(const struct net_device *dev)
+{
+ struct inet6_dev *idev = __in6_dev_get(dev);
+
+ return idev ? idev->nd_parms : NULL;
+}
+
void in6_dev_finish_destroy(struct inet6_dev *idev);
static inline void in6_dev_put(struct inet6_dev *idev)
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index c4a7879bfb15..ce2b77515a9e 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -39,6 +39,7 @@
#include <linux/string.h>
#include <linux/log2.h>
#include <linux/inetdevice.h>
+#include <net/addrconf.h>
#define DEBUG
#define NEIGH_DEBUG 1
@@ -2819,8 +2820,12 @@ static int proc_unres_qlen(struct ctl_table *ctl, int write,
static struct neigh_parms *neigh_get_dev_parms_rcu(struct net_device *dev,
int family)
{
- if (family == AF_INET)
+ switch (family) {
+ case AF_INET:
return __in_dev_arp_parms_get_rcu(dev);
+ case AF_INET6:
+ return __in6_dev_nd_parms_get_rcu(dev);
+ }
return NULL;
}
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index ea8a475fa8c5..be4dbbd17d3b 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -834,6 +834,8 @@ ipv6_add_addr(struct inet6_dev *idev, const struct in6_addr *addr,
goto out;
}
+ neigh_parms_data_state_setall(idev->nd_parms);
+
ifa->addr = *addr;
if (peer_addr)
ifa->peer_addr = *peer_addr;