* [PATCH 1/2] netfilter: nf_conntrack: generalize nf_ct_l4proto_net
@ 2012-06-29 15:23 pablo
2012-06-29 15:23 ` [PATCH 2/2] netfilter: nf_ct_tcp: missing per-net support for cttimeout pablo
2012-06-30 12:29 ` [PATCH 1/2] netfilter: nf_conntrack: generalize nf_ct_l4proto_net Gao feng
0 siblings, 2 replies; 4+ messages in thread
From: pablo @ 2012-06-29 15:23 UTC (permalink / raw)
To: netfilter-devel; +Cc: gaofeng
From: Pablo Neira Ayuso <pablo@netfilter.org>
This patch generalizes nf_ct_l4proto_net by splitting it into chunks and
moving the corresponding protocol part to where it really belongs to.
To clarify, note that we follow two different approaches to support per-net
depending if it's built-in or run-time loadable protocol tracker.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/net/netfilter/nf_conntrack_l4proto.h | 3 +++
net/ipv4/netfilter/nf_conntrack_proto_icmp.c | 6 ++++++
net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c | 6 ++++++
net/netfilter/nf_conntrack_proto.c | 22 ++++++----------------
net/netfilter/nf_conntrack_proto_generic.c | 6 ++++++
net/netfilter/nf_conntrack_proto_tcp.c | 7 +++++++
net/netfilter/nf_conntrack_proto_udp.c | 7 +++++++
7 files changed, 41 insertions(+), 16 deletions(-)
diff --git a/include/net/netfilter/nf_conntrack_l4proto.h b/include/net/netfilter/nf_conntrack_l4proto.h
index 08bb571..c3be4ae 100644
--- a/include/net/netfilter/nf_conntrack_l4proto.h
+++ b/include/net/netfilter/nf_conntrack_l4proto.h
@@ -99,6 +99,9 @@ struct nf_conntrack_l4proto {
/* Init l4proto pernet data */
int (*init_net)(struct net *net, u_int16_t proto);
+ /* Return the per-net protocol part. */
+ struct nf_proto_net *(*get_net_proto)(struct net *net);
+
/* Protocol name */
const char *name;
diff --git a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
index 9c2095c..5241d99 100644
--- a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
+++ b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
@@ -388,6 +388,11 @@ static int icmp_init_net(struct net *net, u_int16_t proto)
return ret;
}
+static struct nf_proto_net *icmp_get_net_proto(struct net *net)
+{
+ return &net->ct.nf_ct_proto.icmp.pn;
+}
+
struct nf_conntrack_l4proto nf_conntrack_l4proto_icmp __read_mostly =
{
.l3proto = PF_INET,
@@ -418,4 +423,5 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_icmp __read_mostly =
},
#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */
.init_net = icmp_init_net,
+ .get_net_proto = icmp_get_net_proto,
};
diff --git a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
index 9fc5cf5..2d54b20 100644
--- a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
+++ b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
@@ -358,6 +358,11 @@ static int icmpv6_init_net(struct net *net, u_int16_t proto)
return icmpv6_kmemdup_sysctl_table(pn, in);
}
+static struct nf_proto_net *icmpv6_get_net_proto(struct net *net)
+{
+ return &net->ct.nf_ct_proto.icmpv6.pn;
+}
+
struct nf_conntrack_l4proto nf_conntrack_l4proto_icmpv6 __read_mostly =
{
.l3proto = PF_INET6,
@@ -386,4 +391,5 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_icmpv6 __read_mostly =
},
#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */
.init_net = icmpv6_init_net,
+ .get_net_proto = icmpv6_get_net_proto,
};
diff --git a/net/netfilter/nf_conntrack_proto.c b/net/netfilter/nf_conntrack_proto.c
index 21b850c..0dc6385 100644
--- a/net/netfilter/nf_conntrack_proto.c
+++ b/net/netfilter/nf_conntrack_proto.c
@@ -303,22 +303,12 @@ EXPORT_SYMBOL_GPL(nf_conntrack_l3proto_unregister);
static struct nf_proto_net *nf_ct_l4proto_net(struct net *net,
struct nf_conntrack_l4proto *l4proto)
{
- switch (l4proto->l4proto) {
- case IPPROTO_TCP:
- return (struct nf_proto_net *)&net->ct.nf_ct_proto.tcp;
- case IPPROTO_UDP:
- 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:
- if (l4proto->net_id)
- return net_generic(net, *l4proto->net_id);
- else
- return NULL;
+ if (l4proto->get_net_proto) {
+ /* statically built-in protocols use static per-net */
+ return l4proto->get_net_proto(net);
+ } else if (l4proto->net_id) {
+ /* ... and loadable protocols use dynamic per-net */
+ return net_generic(net, *l4proto->net_id);
}
return NULL;
}
diff --git a/net/netfilter/nf_conntrack_proto_generic.c b/net/netfilter/nf_conntrack_proto_generic.c
index 7c11c54..d25f293 100644
--- a/net/netfilter/nf_conntrack_proto_generic.c
+++ b/net/netfilter/nf_conntrack_proto_generic.c
@@ -186,6 +186,11 @@ static int generic_init_net(struct net *net, u_int16_t proto)
return ret;
}
+static struct nf_proto_net *generic_get_net_proto(struct net *net)
+{
+ return &net->ct.nf_ct_proto.generic.pn;
+}
+
struct nf_conntrack_l4proto nf_conntrack_l4proto_generic __read_mostly =
{
.l3proto = PF_UNSPEC,
@@ -207,4 +212,5 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_generic __read_mostly =
},
#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */
.init_net = generic_init_net,
+ .get_net_proto = generic_get_net_proto,
};
diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c
index 44f0da8..07e56ea 100644
--- a/net/netfilter/nf_conntrack_proto_tcp.c
+++ b/net/netfilter/nf_conntrack_proto_tcp.c
@@ -1623,6 +1623,11 @@ static int tcp_init_net(struct net *net, u_int16_t proto)
return ret;
}
+static struct nf_proto_net *tcp_get_net_proto(struct net *net)
+{
+ return &net->ct.nf_ct_proto.tcp.pn;
+}
+
struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp4 __read_mostly =
{
.l3proto = PF_INET,
@@ -1656,6 +1661,7 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp4 __read_mostly =
},
#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */
.init_net = tcp_init_net,
+ .get_net_proto = tcp_get_net_proto,
};
EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_tcp4);
@@ -1692,5 +1698,6 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp6 __read_mostly =
},
#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */
.init_net = tcp_init_net,
+ .get_net_proto = tcp_get_net_proto,
};
EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_tcp6);
diff --git a/net/netfilter/nf_conntrack_proto_udp.c b/net/netfilter/nf_conntrack_proto_udp.c
index e7e0434..59623cc 100644
--- a/net/netfilter/nf_conntrack_proto_udp.c
+++ b/net/netfilter/nf_conntrack_proto_udp.c
@@ -297,6 +297,11 @@ static int udp_init_net(struct net *net, u_int16_t proto)
return ret;
}
+static struct nf_proto_net *udp_get_net_proto(struct net *net)
+{
+ return &net->ct.nf_ct_proto.udp.pn;
+}
+
struct nf_conntrack_l4proto nf_conntrack_l4proto_udp4 __read_mostly =
{
.l3proto = PF_INET,
@@ -325,6 +330,7 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_udp4 __read_mostly =
},
#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */
.init_net = udp_init_net,
+ .get_net_proto = udp_get_net_proto,
};
EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_udp4);
@@ -356,5 +362,6 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_udp6 __read_mostly =
},
#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */
.init_net = udp_init_net,
+ .get_net_proto = udp_get_net_proto,
};
EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_udp6);
--
1.7.10
^ permalink raw reply related [flat|nested] 4+ messages in thread* [PATCH 2/2] netfilter: nf_ct_tcp: missing per-net support for cttimeout
2012-06-29 15:23 [PATCH 1/2] netfilter: nf_conntrack: generalize nf_ct_l4proto_net pablo
@ 2012-06-29 15:23 ` pablo
2012-06-30 12:32 ` Gao feng
2012-06-30 12:29 ` [PATCH 1/2] netfilter: nf_conntrack: generalize nf_ct_l4proto_net Gao feng
1 sibling, 1 reply; 4+ messages in thread
From: pablo @ 2012-06-29 15:23 UTC (permalink / raw)
To: netfilter-devel; +Cc: gaofeng
From: Pablo Neira Ayuso <pablo@netfilter.org>
This patch adds missing per-net support for the cttimeout
infrastructure to TCP.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
net/netfilter/nf_conntrack_proto_tcp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c
index 07e56ea..a5ac11e 100644
--- a/net/netfilter/nf_conntrack_proto_tcp.c
+++ b/net/netfilter/nf_conntrack_proto_tcp.c
@@ -821,7 +821,7 @@ static int tcp_error(struct net *net, struct nf_conn *tmpl,
static unsigned int *tcp_get_timeouts(struct net *net)
{
- return tcp_timeouts;
+ return tcp_pernet(net)->timeouts;
}
/* Returns verdict for packet, or -1 for invalid. */
--
1.7.10
^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [PATCH 2/2] netfilter: nf_ct_tcp: missing per-net support for cttimeout
2012-06-29 15:23 ` [PATCH 2/2] netfilter: nf_ct_tcp: missing per-net support for cttimeout pablo
@ 2012-06-30 12:32 ` Gao feng
0 siblings, 0 replies; 4+ messages in thread
From: Gao feng @ 2012-06-30 12:32 UTC (permalink / raw)
To: pablo; +Cc: netfilter-devel
于 2012年06月29日 23:23, pablo@netfilter.org 写道:
> From: Pablo Neira Ayuso <pablo@netfilter.org>
>
> This patch adds missing per-net support for the cttimeout
> infrastructure to TCP.
>
> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
> ---
> net/netfilter/nf_conntrack_proto_tcp.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Sorry,actually I missed it,thanks!
Acked-by: Gao feng <gaofeng@cn.fujitsu.com>
>
> diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c
> index 07e56ea..a5ac11e 100644
> --- a/net/netfilter/nf_conntrack_proto_tcp.c
> +++ b/net/netfilter/nf_conntrack_proto_tcp.c
> @@ -821,7 +821,7 @@ static int tcp_error(struct net *net, struct nf_conn *tmpl,
>
> static unsigned int *tcp_get_timeouts(struct net *net)
> {
> - return tcp_timeouts;
> + return tcp_pernet(net)->timeouts;
> }
>
> /* Returns verdict for packet, or -1 for invalid. */
--
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH 1/2] netfilter: nf_conntrack: generalize nf_ct_l4proto_net
2012-06-29 15:23 [PATCH 1/2] netfilter: nf_conntrack: generalize nf_ct_l4proto_net pablo
2012-06-29 15:23 ` [PATCH 2/2] netfilter: nf_ct_tcp: missing per-net support for cttimeout pablo
@ 2012-06-30 12:29 ` Gao feng
1 sibling, 0 replies; 4+ messages in thread
From: Gao feng @ 2012-06-30 12:29 UTC (permalink / raw)
To: pablo; +Cc: netfilter-devel
于 2012年06月29日 23:23, pablo@netfilter.org 写道:
> From: Pablo Neira Ayuso <pablo@netfilter.org>
>
> This patch generalizes nf_ct_l4proto_net by splitting it into chunks and
> moving the corresponding protocol part to where it really belongs to.
>
> To clarify, note that we follow two different approaches to support per-net
> depending if it's built-in or run-time loadable protocol tracker.
>
> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
> ---
> include/net/netfilter/nf_conntrack_l4proto.h | 3 +++
> net/ipv4/netfilter/nf_conntrack_proto_icmp.c | 6 ++++++
> net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c | 6 ++++++
> net/netfilter/nf_conntrack_proto.c | 22 ++++++----------------
> net/netfilter/nf_conntrack_proto_generic.c | 6 ++++++
> net/netfilter/nf_conntrack_proto_tcp.c | 7 +++++++
> net/netfilter/nf_conntrack_proto_udp.c | 7 +++++++
> 7 files changed, 41 insertions(+), 16 deletions(-)
Yes,It looks better,thanks!
Acked-by: Gao feng <gaofeng@cn.fujitsu.com>
>
> diff --git a/include/net/netfilter/nf_conntrack_l4proto.h b/include/net/netfilter/nf_conntrack_l4proto.h
> index 08bb571..c3be4ae 100644
> --- a/include/net/netfilter/nf_conntrack_l4proto.h
> +++ b/include/net/netfilter/nf_conntrack_l4proto.h
> @@ -99,6 +99,9 @@ struct nf_conntrack_l4proto {
> /* Init l4proto pernet data */
> int (*init_net)(struct net *net, u_int16_t proto);
>
> + /* Return the per-net protocol part. */
> + struct nf_proto_net *(*get_net_proto)(struct net *net);
> +
> /* Protocol name */
> const char *name;
>
> diff --git a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
> index 9c2095c..5241d99 100644
> --- a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
> +++ b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
> @@ -388,6 +388,11 @@ static int icmp_init_net(struct net *net, u_int16_t proto)
> return ret;
> }
>
> +static struct nf_proto_net *icmp_get_net_proto(struct net *net)
> +{
> + return &net->ct.nf_ct_proto.icmp.pn;
> +}
> +
> struct nf_conntrack_l4proto nf_conntrack_l4proto_icmp __read_mostly =
> {
> .l3proto = PF_INET,
> @@ -418,4 +423,5 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_icmp __read_mostly =
> },
> #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */
> .init_net = icmp_init_net,
> + .get_net_proto = icmp_get_net_proto,
> };
> diff --git a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
> index 9fc5cf5..2d54b20 100644
> --- a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
> +++ b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
> @@ -358,6 +358,11 @@ static int icmpv6_init_net(struct net *net, u_int16_t proto)
> return icmpv6_kmemdup_sysctl_table(pn, in);
> }
>
> +static struct nf_proto_net *icmpv6_get_net_proto(struct net *net)
> +{
> + return &net->ct.nf_ct_proto.icmpv6.pn;
> +}
> +
> struct nf_conntrack_l4proto nf_conntrack_l4proto_icmpv6 __read_mostly =
> {
> .l3proto = PF_INET6,
> @@ -386,4 +391,5 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_icmpv6 __read_mostly =
> },
> #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */
> .init_net = icmpv6_init_net,
> + .get_net_proto = icmpv6_get_net_proto,
> };
> diff --git a/net/netfilter/nf_conntrack_proto.c b/net/netfilter/nf_conntrack_proto.c
> index 21b850c..0dc6385 100644
> --- a/net/netfilter/nf_conntrack_proto.c
> +++ b/net/netfilter/nf_conntrack_proto.c
> @@ -303,22 +303,12 @@ EXPORT_SYMBOL_GPL(nf_conntrack_l3proto_unregister);
> static struct nf_proto_net *nf_ct_l4proto_net(struct net *net,
> struct nf_conntrack_l4proto *l4proto)
> {
> - switch (l4proto->l4proto) {
> - case IPPROTO_TCP:
> - return (struct nf_proto_net *)&net->ct.nf_ct_proto.tcp;
> - case IPPROTO_UDP:
> - 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:
> - if (l4proto->net_id)
> - return net_generic(net, *l4proto->net_id);
> - else
> - return NULL;
> + if (l4proto->get_net_proto) {
> + /* statically built-in protocols use static per-net */
> + return l4proto->get_net_proto(net);
> + } else if (l4proto->net_id) {
> + /* ... and loadable protocols use dynamic per-net */
> + return net_generic(net, *l4proto->net_id);
> }
> return NULL;
> }
> diff --git a/net/netfilter/nf_conntrack_proto_generic.c b/net/netfilter/nf_conntrack_proto_generic.c
> index 7c11c54..d25f293 100644
> --- a/net/netfilter/nf_conntrack_proto_generic.c
> +++ b/net/netfilter/nf_conntrack_proto_generic.c
> @@ -186,6 +186,11 @@ static int generic_init_net(struct net *net, u_int16_t proto)
> return ret;
> }
>
> +static struct nf_proto_net *generic_get_net_proto(struct net *net)
> +{
> + return &net->ct.nf_ct_proto.generic.pn;
> +}
> +
> struct nf_conntrack_l4proto nf_conntrack_l4proto_generic __read_mostly =
> {
> .l3proto = PF_UNSPEC,
> @@ -207,4 +212,5 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_generic __read_mostly =
> },
> #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */
> .init_net = generic_init_net,
> + .get_net_proto = generic_get_net_proto,
> };
> diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c
> index 44f0da8..07e56ea 100644
> --- a/net/netfilter/nf_conntrack_proto_tcp.c
> +++ b/net/netfilter/nf_conntrack_proto_tcp.c
> @@ -1623,6 +1623,11 @@ static int tcp_init_net(struct net *net, u_int16_t proto)
> return ret;
> }
>
> +static struct nf_proto_net *tcp_get_net_proto(struct net *net)
> +{
> + return &net->ct.nf_ct_proto.tcp.pn;
> +}
> +
> struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp4 __read_mostly =
> {
> .l3proto = PF_INET,
> @@ -1656,6 +1661,7 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp4 __read_mostly =
> },
> #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */
> .init_net = tcp_init_net,
> + .get_net_proto = tcp_get_net_proto,
> };
> EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_tcp4);
>
> @@ -1692,5 +1698,6 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp6 __read_mostly =
> },
> #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */
> .init_net = tcp_init_net,
> + .get_net_proto = tcp_get_net_proto,
> };
> EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_tcp6);
> diff --git a/net/netfilter/nf_conntrack_proto_udp.c b/net/netfilter/nf_conntrack_proto_udp.c
> index e7e0434..59623cc 100644
> --- a/net/netfilter/nf_conntrack_proto_udp.c
> +++ b/net/netfilter/nf_conntrack_proto_udp.c
> @@ -297,6 +297,11 @@ static int udp_init_net(struct net *net, u_int16_t proto)
> return ret;
> }
>
> +static struct nf_proto_net *udp_get_net_proto(struct net *net)
> +{
> + return &net->ct.nf_ct_proto.udp.pn;
> +}
> +
> struct nf_conntrack_l4proto nf_conntrack_l4proto_udp4 __read_mostly =
> {
> .l3proto = PF_INET,
> @@ -325,6 +330,7 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_udp4 __read_mostly =
> },
> #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */
> .init_net = udp_init_net,
> + .get_net_proto = udp_get_net_proto,
> };
> EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_udp4);
>
> @@ -356,5 +362,6 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_udp6 __read_mostly =
> },
> #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */
> .init_net = udp_init_net,
> + .get_net_proto = udp_get_net_proto,
> };
> EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_udp6);
--
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^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2012-06-30 12:32 UTC | newest]
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2012-06-29 15:23 [PATCH 1/2] netfilter: nf_conntrack: generalize nf_ct_l4proto_net pablo
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2012-06-30 12:32 ` Gao feng
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as well as URLs for NNTP newsgroup(s).