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neigh: ipv6: respect default values set before an address is assigned to device

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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>
This commit is contained in:
Jiri Pirko 2013-12-07 19:26:57 +01:00 committed by David S. Miller
parent 1d4c8c2984
commit bba24896f0
3 changed files with 15 additions and 1 deletions
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7
include/net/addrconf.h
View File

@ -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)

7
net/core/neighbour.c
View File

@ -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;
}

2
net/ipv6/addrconf.c
View File

@ -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;