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authorGao feng2012-05-28 21:04:15 +0000
committerPablo Neira Ayuso2012-06-07 14:58:40 +0200
commit7080ba0955438ecd2885c1b73fbd9760b1594a41 (patch)
treedcb91bea5da6c1cb70bc52acfd3a17db3da259c7
parent4b626b9c5d35b4f99b073dc5d6457abddcbcf429 (diff)
netfilter: nf_ct_icmp: add namespace support
This patch adds namespace support for ICMPv6 protocol tracker. Acked-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
-rw-r--r--include/net/netns/conntrack.h1
-rw-r--r--net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c25
-rw-r--r--net/netfilter/nf_conntrack_proto.c2
3 files changed, 26 insertions, 2 deletions
diff --git a/include/net/netns/conntrack.h b/include/net/netns/conntrack.h
index 3d8e9e3b08a6..3aecdc7a84fb 100644
--- a/include/net/netns/conntrack.h
+++ b/include/net/netns/conntrack.h
@@ -55,6 +55,7 @@ struct nf_ip_net {
struct nf_tcp_net tcp;
struct nf_udp_net udp;
struct nf_icmp_net icmp;
+ struct nf_icmp_net icmpv6;
#if defined(CONFIG_SYSCTL) && defined(CONFIG_NF_CONNTRACK_PROC_COMPAT)
struct ctl_table_header *ctl_table_header;
struct ctl_table *ctl_table;
diff --git a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
index 3e81904fbbcd..f606355200d8 100644
--- a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
+++ b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
@@ -29,6 +29,11 @@
static unsigned int nf_ct_icmpv6_timeout __read_mostly = 30*HZ;
+static inline struct nf_icmp_net *icmpv6_pernet(struct net *net)
+{
+ return &net->ct.nf_ct_proto.icmpv6;
+}
+
static bool icmpv6_pkt_to_tuple(const struct sk_buff *skb,
unsigned int dataoff,
struct nf_conntrack_tuple *tuple)
@@ -90,7 +95,7 @@ static int icmpv6_print_tuple(struct seq_file *s,
static unsigned int *icmpv6_get_timeouts(struct net *net)
{
- return &nf_ct_icmpv6_timeout;
+ return &icmpv6_pernet(net)->timeout;
}
/* Returns verdict for packet, or -1 for invalid. */
@@ -319,7 +324,6 @@ static struct ctl_table_header *icmpv6_sysctl_header;
static struct ctl_table icmpv6_sysctl_table[] = {
{
.procname = "nf_conntrack_icmpv6_timeout",
- .data = &nf_ct_icmpv6_timeout,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = proc_dointvec_jiffies,
@@ -328,6 +332,22 @@ static struct ctl_table icmpv6_sysctl_table[] = {
};
#endif /* CONFIG_SYSCTL */
+static int icmpv6_init_net(struct net *net)
+{
+ struct nf_icmp_net *in = icmpv6_pernet(net);
+ struct nf_proto_net *pn = (struct nf_proto_net *)in;
+ in->timeout = nf_ct_icmpv6_timeout;
+#ifdef CONFIG_SYSCTL
+ pn->ctl_table = kmemdup(icmpv6_sysctl_table,
+ sizeof(icmpv6_sysctl_table),
+ GFP_KERNEL);
+ if (!pn->ctl_table)
+ return -ENOMEM;
+ pn->ctl_table[0].data = &in->timeout;
+#endif
+ return 0;
+}
+
struct nf_conntrack_l4proto nf_conntrack_l4proto_icmpv6 __read_mostly =
{
.l3proto = PF_INET6,
@@ -359,4 +379,5 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_icmpv6 __read_mostly =
.ctl_table_header = &icmpv6_sysctl_header,
.ctl_table = icmpv6_sysctl_table,
#endif
+ .init_net = icmpv6_init_net,
};
diff --git a/net/netfilter/nf_conntrack_proto.c b/net/netfilter/nf_conntrack_proto.c
index dbade5f2b1d3..1ea919450fc3 100644
--- a/net/netfilter/nf_conntrack_proto.c
+++ b/net/netfilter/nf_conntrack_proto.c
@@ -309,6 +309,8 @@ static struct nf_proto_net *nf_ct_l4proto_net(struct net *net,
return (struct nf_proto_net *)&net->ct.nf_ct_proto.udp;
case IPPROTO_ICMP:
return (struct nf_proto_net *)&net->ct.nf_ct_proto.icmp;
+ case IPPROTO_ICMPV6:
+ return (struct nf_proto_net *)&net->ct.nf_ct_proto.icmpv6;
case 255: /* l4proto_generic */
return (struct nf_proto_net *)&net->ct.nf_ct_proto.generic;
default: