netfilter: nf_conntrack: log packets dropped by helpers

[safe/jmp/linux-2.6] / net / ipv6 / netfilter / nf_conntrack_l3proto_ipv6.c

diff --git a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
index b165a27..5f2ec20 100644 (file)
--- a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
+++ b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
@@ -26,6 +26,8 @@
 #include <net/netfilter/nf_conntrack_l4proto.h>
 #include <net/netfilter/nf_conntrack_l3proto.h>
 #include <net/netfilter/nf_conntrack_core.h>
+#include <net/netfilter/ipv6/nf_conntrack_ipv6.h>
+#include <net/netfilter/nf_log.h>
 
 static bool ipv6_pkt_to_tuple(const struct sk_buff *skb, unsigned int nhoff,
                              struct nf_conntrack_tuple *tuple)
@@ -56,7 +58,7 @@ static bool ipv6_invert_tuple(struct nf_conntrack_tuple *tuple,
 static int ipv6_print_tuple(struct seq_file *s,
                            const struct nf_conntrack_tuple *tuple)
 {
-       return seq_printf(s, "src=%p6 dst=%p6 ",
+       return seq_printf(s, "src=%pI6 dst=%pI6 ",
                          tuple->src.u3.ip6, tuple->dst.u3.ip6);
 }
 
@@ -175,8 +177,11 @@ static unsigned int ipv6_confirm(unsigned int hooknum,
        }
 
        ret = helper->help(skb, protoff, ct, ctinfo);
-       if (ret != NF_ACCEPT)
+       if (ret != NF_ACCEPT) {
+               nf_log_packet(NFPROTO_IPV6, hooknum, skb, in, out, NULL,
+                             "nf_ct_%s: dropping packet", helper->name);
                return ret;
+       }
 out:
        /* We've seen it coming out the other side: confirm it */
        return nf_conntrack_confirm(skb);
@@ -264,42 +269,42 @@ static struct nf_hook_ops ipv6_conntrack_ops[] __read_mostly = {
        {
                .hook           = ipv6_defrag,
                .owner          = THIS_MODULE,
-               .pf             = PF_INET6,
+               .pf             = NFPROTO_IPV6,
                .hooknum        = NF_INET_PRE_ROUTING,
                .priority       = NF_IP6_PRI_CONNTRACK_DEFRAG,
        },
        {
                .hook           = ipv6_conntrack_in,
                .owner          = THIS_MODULE,
-               .pf             = PF_INET6,
+               .pf             = NFPROTO_IPV6,
                .hooknum        = NF_INET_PRE_ROUTING,
                .priority       = NF_IP6_PRI_CONNTRACK,
        },
        {
                .hook           = ipv6_conntrack_local,
                .owner          = THIS_MODULE,
-               .pf             = PF_INET6,
+               .pf             = NFPROTO_IPV6,
                .hooknum        = NF_INET_LOCAL_OUT,
                .priority       = NF_IP6_PRI_CONNTRACK,
        },
        {
                .hook           = ipv6_defrag,
                .owner          = THIS_MODULE,
-               .pf             = PF_INET6,
+               .pf             = NFPROTO_IPV6,
                .hooknum        = NF_INET_LOCAL_OUT,
                .priority       = NF_IP6_PRI_CONNTRACK_DEFRAG,
        },
        {
                .hook           = ipv6_confirm,
                .owner          = THIS_MODULE,
-               .pf             = PF_INET6,
+               .pf             = NFPROTO_IPV6,
                .hooknum        = NF_INET_POST_ROUTING,
                .priority       = NF_IP6_PRI_LAST,
        },
        {
                .hook           = ipv6_confirm,
                .owner          = THIS_MODULE,
-               .pf             = PF_INET6,
+               .pf             = NFPROTO_IPV6,
                .hooknum        = NF_INET_LOCAL_IN,
                .priority       = NF_IP6_PRI_LAST-1,
        },
@@ -341,6 +346,11 @@ static int ipv6_nlattr_to_tuple(struct nlattr *tb[],
 
        return 0;
 }
+
+static int ipv6_nlattr_tuple_size(void)
+{
+       return nla_policy_len(ipv6_nla_policy, CTA_IP_MAX + 1);
+}
 #endif
 
 struct nf_conntrack_l3proto nf_conntrack_l3proto_ipv6 __read_mostly = {
@@ -352,6 +362,7 @@ struct nf_conntrack_l3proto nf_conntrack_l3proto_ipv6 __read_mostly = {
        .get_l4proto            = ipv6_get_l4proto,
 #if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
        .tuple_to_nlattr        = ipv6_tuple_to_nlattr,
+       .nlattr_tuple_size      = ipv6_nlattr_tuple_size,
        .nlattr_to_tuple        = ipv6_nlattr_to_tuple,
        .nla_policy             = ipv6_nla_policy,
 #endif