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| author | David S. Miller <davem@davemloft.net> | 2010-11-30 23:27:11 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-11-30 23:27:11 +0300 |
| commit | b3419363808f2481b24a817f491878e1795db4c7 (patch) | |
| tree | 76cfa3c55d6798a9bf25d200778dc212841f6cb0 /net | |
| parent | 672f007d65f50468a4a1e55825fe58e5b035324d (diff) | |
| download | linux-b3419363808f2481b24a817f491878e1795db4c7.tar.xz | |
ipv6: Add infrastructure to bind inet_peer objects to routes.
They are only allowed on cached ipv6 routes.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv4/inetpeer.c | 2 | ||||
| -rw-r--r-- | net/ipv6/route.c | 18 |
2 files changed, 20 insertions, 0 deletions
diff --git a/net/ipv4/inetpeer.c b/net/ipv4/inetpeer.c index 1c1335b0d401..f95b89f3916d 100644 --- a/net/ipv4/inetpeer.c +++ b/net/ipv4/inetpeer.c @@ -532,6 +532,7 @@ static int compute_total(void) { return v4_peers.total + v6_peers.total; } +EXPORT_SYMBOL_GPL(inet_getpeer); /* Called with local BH disabled. */ static void peer_check_expire(unsigned long dummy) @@ -577,3 +578,4 @@ void inet_putpeer(struct inet_peer *p) local_bh_enable(); } +EXPORT_SYMBOL_GPL(inet_putpeer); diff --git a/net/ipv6/route.c b/net/ipv6/route.c index a0c4ad109c63..026caef0326c 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -188,11 +188,29 @@ static void ip6_dst_destroy(struct dst_entry *dst) { struct rt6_info *rt = (struct rt6_info *)dst; struct inet6_dev *idev = rt->rt6i_idev; + struct inet_peer *peer = rt->rt6i_peer; if (idev != NULL) { rt->rt6i_idev = NULL; in6_dev_put(idev); } + if (peer) { + BUG_ON(!(rt->rt6i_flags & RTF_CACHE)); + rt->rt6i_peer = NULL; + inet_putpeer(peer); + } +} + +void rt6_bind_peer(struct rt6_info *rt, int create) +{ + struct inet_peer *peer; + + if (WARN_ON(!(rt->rt6i_flags & RTF_CACHE))) + return; + + peer = inet_getpeer_v6(&rt->rt6i_dst.addr, create); + if (peer && cmpxchg(&rt->rt6i_peer, NULL, peer) != NULL) + inet_putpeer(peer); } static void ip6_dst_ifdown(struct dst_entry *dst, struct net_device *dev, |