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[NETNS][IPV6]: inet6_addr - make ipv6_chk_home_addr namespace aware

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Looks if the address is belonging to the network namespace, otherwise
discard the address for the check.

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>
This commit is contained in:
Daniel Lezcano 2008-01-10 22:44:40 -08:00 committed by David S. Miller
parent 1cab3da6be
commit 389f661224
3 changed files with 6 additions and 3 deletions
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3
include/net/addrconf.h
View File

@ -65,7 +65,8 @@ extern int ipv6_chk_addr(struct net *net,
int strict);
#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
extern int ipv6_chk_home_addr(struct in6_addr *addr);
extern int ipv6_chk_home_addr(struct net *net,
struct in6_addr *addr);
#endif
extern struct inet6_ifaddr *ipv6_get_ifaddr(struct net *net,
struct in6_addr *addr,

4
net/ipv6/addrconf.c
View File

@ -2883,13 +2883,15 @@ void if6_proc_exit(void)
#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
/* Check if address is a home address configured on any interface. */
int ipv6_chk_home_addr(struct in6_addr *addr)
int ipv6_chk_home_addr(struct net *net, struct in6_addr *addr)
{
int ret = 0;
struct inet6_ifaddr * ifp;
u8 hash = ipv6_addr_hash(addr);
read_lock_bh(&addrconf_hash_lock);
for (ifp = inet6_addr_lst[hash]; ifp; ifp = ifp->lst_next) {
if (ifp->idev->dev->nd_net != net)
continue;
if (ipv6_addr_cmp(&ifp->addr, addr) == 0 &&
(ifp->flags & IFA_F_HOMEADDRESS)) {
ret = 1;

2
net/ipv6/exthdrs.c
View File

@ -445,7 +445,7 @@ looped_back:
kfree_skb(skb);
return -1;
}
if (!ipv6_chk_home_addr(addr)) {
if (!ipv6_chk_home_addr(&init_net, addr)) {
IP6_INC_STATS_BH(ip6_dst_idev(skb->dst),
IPSTATS_MIB_INADDRERRORS);
kfree_skb(skb);