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authorDenis V. Lunev <den@openvz.org>2007-12-01 00:21:31 +1100
committerDavid S. Miller <davem@davemloft.net>2008-01-28 14:54:24 -0800
commitb854272b3c732316676e9128f7b9e6f1e1ff88b0 (patch)
treec90c74b9ec068453881f1173da4c57d6bb00a7d9 /net/decnet/dn_fib.c
parentad5d20a63940fcfb40af76ba06148f36d5d0b433 (diff)
downloadlinux-stericsson-b854272b3c732316676e9128f7b9e6f1e1ff88b0.tar.gz
[NET]: Modify all rtnetlink methods to only work in the initial namespace (v2)
Before I can enable rtnetlink to work in all network namespaces I need to be certain that something won't break. So this patch deliberately disables all of the rtnletlink methods in everything except the initial network namespace. After the methods have been audited this extra check can be disabled. Changes from v1: - added IPv6 addrlabel protection Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'net/decnet/dn_fib.c')
-rw-r--r--net/decnet/dn_fib.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/net/decnet/dn_fib.c b/net/decnet/dn_fib.c
index 3760a20d10d0..5413e1b75b5d 100644
--- a/net/decnet/dn_fib.c
+++ b/net/decnet/dn_fib.c
@@ -506,10 +506,14 @@ static int dn_fib_check_attr(struct rtmsg *r, struct rtattr **rta)
static int dn_fib_rtm_delroute(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
{
+ struct net *net = skb->sk->sk_net;
struct dn_fib_table *tb;
struct rtattr **rta = arg;
struct rtmsg *r = NLMSG_DATA(nlh);
+ if (net != &init_net)
+ return -EINVAL;
+
if (dn_fib_check_attr(r, rta))
return -EINVAL;
@@ -522,10 +526,14 @@ static int dn_fib_rtm_delroute(struct sk_buff *skb, struct nlmsghdr *nlh, void *
static int dn_fib_rtm_newroute(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
{
+ struct net *net = skb->sk->sk_net;
struct dn_fib_table *tb;
struct rtattr **rta = arg;
struct rtmsg *r = NLMSG_DATA(nlh);
+ if (net != &init_net)
+ return -EINVAL;
+
if (dn_fib_check_attr(r, rta))
return -EINVAL;