Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/gi…

…t/pablo/nf Pablo Neira Ayuso says: ==================== If time allows, please consider pulling the following patchset contains two late Netfilter fixes, they are: * Skip broadcast/multicast locally generated traffic in the rpfilter, (closes netfilter bugzilla torvalds#814), from Florian Westphal. * Fix missing elements in the listing of ipset bitmap ip,mac set type with timeout support enabled, from Jozsef Kadlecsik. ==================== Signed-off-by: David S. Miller <[email protected]>
ambv · Apr 19, 2013 · fd7fc25 · fd7fc25
2 parents 6a4cd3f + f83a7ea
commit fd7fc25
Show file tree

Hide file tree

Showing 3 changed files with 19 additions and 3 deletions.
diff --git a/net/ipv4/netfilter/ipt_rpfilter.c b/net/ipv4/netfilter/ipt_rpfilter.c
@@ -66,6 +66,12 @@ static bool rpfilter_lookup_reverse(struct flowi4 *fl4,
 	return dev_match;
 }
 
+static bool rpfilter_is_local(const struct sk_buff *skb)
+{
+	const struct rtable *rt = skb_rtable(skb);
+	return rt && (rt->rt_flags & RTCF_LOCAL);
+}
+
 static bool rpfilter_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct xt_rpfilter_info *info;
@@ -76,7 +82,7 @@ static bool rpfilter_mt(const struct sk_buff *skb, struct xt_action_param *par)
 	info = par->matchinfo;
 	invert = info->flags & XT_RPFILTER_INVERT;
 
-	if (par->in->flags & IFF_LOOPBACK)
+	if (rpfilter_is_local(skb))
 		return true ^ invert;
 
 	iph = ip_hdr(skb);

diff --git a/net/ipv6/netfilter/ip6t_rpfilter.c b/net/ipv6/netfilter/ip6t_rpfilter.c
@@ -71,14 +71,20 @@ static bool rpfilter_lookup_reverse6(const struct sk_buff *skb,
 	return ret;
 }
 
+static bool rpfilter_is_local(const struct sk_buff *skb)
+{
+	const struct rt6_info *rt = (const void *) skb_dst(skb);
+	return rt && (rt->rt6i_flags & RTF_LOCAL);
+}
+
 static bool rpfilter_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct xt_rpfilter_info *info = par->matchinfo;
 	int saddrtype;
 	struct ipv6hdr *iph;
 	bool invert = info->flags & XT_RPFILTER_INVERT;
 
-	if (par->in->flags & IFF_LOOPBACK)
+	if (rpfilter_is_local(skb))
 		return true ^ invert;
 
 	iph = ipv6_hdr(skb);

diff --git a/net/netfilter/ipset/ip_set_bitmap_ipmac.c b/net/netfilter/ipset/ip_set_bitmap_ipmac.c
@@ -339,7 +339,11 @@ bitmap_ipmac_tlist(const struct ip_set *set,
 nla_put_failure:
 	nla_nest_cancel(skb, nested);
 	ipset_nest_end(skb, atd);
-	return -EMSGSIZE;
+	if (unlikely(id == first)) {
+		cb->args[2] = 0;
+		return -EMSGSIZE;
+	}
+	return 0;
 }
 
 static int