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| author | Daniel Lezcano <dlezcano@fr.ibm.com> | 2008-01-10 22:43:42 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-01-28 15:01:45 -0800 |
| commit | 06bfe655e7db7719c0eb51eb420fb9c2a6aa1e00 (patch) | |
| tree | 6343c97d6004f9153c1f367bd4e23095ec612d4f /net/ipv6/addrconf.c | |
| parent | bfeade087005278fc8cafe230b7658a4f40c5acb (diff) | |
| download | lwn-06bfe655e7db7719c0eb51eb420fb9c2a6aa1e00.tar.gz lwn-06bfe655e7db7719c0eb51eb420fb9c2a6aa1e00.zip | |
[NETNS][IPV6]: inet6_addr - ipv6_chk_same_addr namespace aware
This patch makes ipv6_chk_same_addr function to be aware of the
network namespace. The addresses not belonging to the network
namespace are discarded.
Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: Benjamin Thery <benjamin.thery@bull.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/addrconf.c')
| -rw-r--r-- | net/ipv6/addrconf.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index f35c3df410df..41cc31ee297e 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -149,7 +149,8 @@ static void ipv6_ifa_notify(int event, struct inet6_ifaddr *ifa); static void inet6_prefix_notify(int event, struct inet6_dev *idev, struct prefix_info *pinfo); -static int ipv6_chk_same_addr(const struct in6_addr *addr, struct net_device *dev); +static int ipv6_chk_same_addr(struct net *net, const struct in6_addr *addr, + struct net_device *dev); static ATOMIC_NOTIFIER_HEAD(inet6addr_chain); @@ -560,7 +561,7 @@ ipv6_add_addr(struct inet6_dev *idev, const struct in6_addr *addr, int pfxlen, write_lock(&addrconf_hash_lock); /* Ignore adding duplicate addresses on an interface */ - if (ipv6_chk_same_addr(addr, idev->dev)) { + if (ipv6_chk_same_addr(&init_net, addr, idev->dev)) { ADBG(("ipv6_add_addr: already assigned\n")); err = -EEXIST; goto out; @@ -1229,12 +1230,15 @@ int ipv6_chk_addr(struct net *net, struct in6_addr *addr, EXPORT_SYMBOL(ipv6_chk_addr); static -int ipv6_chk_same_addr(const struct in6_addr *addr, struct net_device *dev) +int ipv6_chk_same_addr(struct net *net, const struct in6_addr *addr, + struct net_device *dev) { struct inet6_ifaddr * ifp; u8 hash = ipv6_addr_hash(addr); for(ifp = inet6_addr_lst[hash]; ifp; ifp=ifp->lst_next) { + if (ifp->idev->dev->nd_net != net) + continue; if (ipv6_addr_equal(&ifp->addr, addr)) { if (dev == NULL || ifp->idev->dev == dev) break; |