From: Pablo Neira Ayuso <pablo@netfilter.org>
To: netfilter-devel@vger.kernel.org
Cc: davem@davemloft.net, netdev@vger.kernel.org
Subject: [PATCH 10/50] netfilter: conntrack: built-in support for DCCP
Date: Wed, 7 Dec 2016 22:52:16 +0100 [thread overview]
Message-ID: <1481147576-5690-11-git-send-email-pablo@netfilter.org> (raw)
In-Reply-To: <1481147576-5690-1-git-send-email-pablo@netfilter.org>
From: Davide Caratti <dcaratti@redhat.com>
CONFIG_NF_CT_PROTO_DCCP is no more a tristate. When set to y, connection
tracking support for DCCP protocol is built-in into nf_conntrack.ko.
footprint test:
$ ls -l net/netfilter/nf_conntrack{_proto_dccp,}.ko \
net/ipv4/netfilter/nf_conntrack_ipv4.ko \
net/ipv6/netfilter/nf_conntrack_ipv6.ko
(builtin)|| dccp | ipv4 | ipv6 | nf_conntrack
---------++--------+--------+--------+--------------
none || 469140 | 828755 | 828676 | 6141434
DCCP || - | 830566 | 829935 | 6533526
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/linux/netfilter/nf_conntrack_dccp.h | 2 +-
include/net/netfilter/ipv4/nf_conntrack_ipv4.h | 3 +
include/net/netfilter/ipv6/nf_conntrack_ipv6.h | 3 +
include/net/netns/conntrack.h | 14 +++++
net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c | 3 +
net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c | 3 +
net/netfilter/Kconfig | 6 +-
net/netfilter/Makefile | 3 +-
net/netfilter/nf_conntrack_proto_dccp.c | 79 ++++----------------------
9 files changed, 41 insertions(+), 75 deletions(-)
diff --git a/include/linux/netfilter/nf_conntrack_dccp.h b/include/linux/netfilter/nf_conntrack_dccp.h
index 40dcc82058d1..ff721d7325cf 100644
--- a/include/linux/netfilter/nf_conntrack_dccp.h
+++ b/include/linux/netfilter/nf_conntrack_dccp.h
@@ -25,7 +25,7 @@ enum ct_dccp_roles {
#define CT_DCCP_ROLE_MAX (__CT_DCCP_ROLE_MAX - 1)
#ifdef __KERNEL__
-#include <net/netfilter/nf_conntrack_tuple.h>
+#include <linux/netfilter/nf_conntrack_tuple_common.h>
struct nf_ct_dccp {
u_int8_t role[IP_CT_DIR_MAX];
diff --git a/include/net/netfilter/ipv4/nf_conntrack_ipv4.h b/include/net/netfilter/ipv4/nf_conntrack_ipv4.h
index 981c327374da..c2f155fd9299 100644
--- a/include/net/netfilter/ipv4/nf_conntrack_ipv4.h
+++ b/include/net/netfilter/ipv4/nf_conntrack_ipv4.h
@@ -15,6 +15,9 @@ extern struct nf_conntrack_l3proto nf_conntrack_l3proto_ipv4;
extern struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp4;
extern struct nf_conntrack_l4proto nf_conntrack_l4proto_udp4;
extern struct nf_conntrack_l4proto nf_conntrack_l4proto_icmp;
+#ifdef CONFIG_NF_CT_PROTO_DCCP
+extern struct nf_conntrack_l4proto nf_conntrack_l4proto_dccp4;
+#endif
int nf_conntrack_ipv4_compat_init(void);
void nf_conntrack_ipv4_compat_fini(void);
diff --git a/include/net/netfilter/ipv6/nf_conntrack_ipv6.h b/include/net/netfilter/ipv6/nf_conntrack_ipv6.h
index a4c993685795..5ec66c0d21c4 100644
--- a/include/net/netfilter/ipv6/nf_conntrack_ipv6.h
+++ b/include/net/netfilter/ipv6/nf_conntrack_ipv6.h
@@ -6,6 +6,9 @@ extern struct nf_conntrack_l3proto nf_conntrack_l3proto_ipv6;
extern struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp6;
extern struct nf_conntrack_l4proto nf_conntrack_l4proto_udp6;
extern struct nf_conntrack_l4proto nf_conntrack_l4proto_icmpv6;
+#ifdef CONFIG_NF_CT_PROTO_DCCP
+extern struct nf_conntrack_l4proto nf_conntrack_l4proto_dccp6;
+#endif
#include <linux/sysctl.h>
extern struct ctl_table nf_ct_ipv6_sysctl_table[];
diff --git a/include/net/netns/conntrack.h b/include/net/netns/conntrack.h
index 3d06d94d2e52..440b781baf0b 100644
--- a/include/net/netns/conntrack.h
+++ b/include/net/netns/conntrack.h
@@ -6,6 +6,9 @@
#include <linux/atomic.h>
#include <linux/workqueue.h>
#include <linux/netfilter/nf_conntrack_tcp.h>
+#ifdef CONFIG_NF_CT_PROTO_DCCP
+#include <linux/netfilter/nf_conntrack_dccp.h>
+#endif
#include <linux/seqlock.h>
struct ctl_table_header;
@@ -48,12 +51,23 @@ struct nf_icmp_net {
unsigned int timeout;
};
+#ifdef CONFIG_NF_CT_PROTO_DCCP
+struct nf_dccp_net {
+ struct nf_proto_net pn;
+ int dccp_loose;
+ unsigned int dccp_timeout[CT_DCCP_MAX + 1];
+};
+#endif
+
struct nf_ip_net {
struct nf_generic_net generic;
struct nf_tcp_net tcp;
struct nf_udp_net udp;
struct nf_icmp_net icmp;
struct nf_icmp_net icmpv6;
+#ifdef CONFIG_NF_CT_PROTO_DCCP
+ struct nf_dccp_net dccp;
+#endif
};
struct ct_pcpu {
diff --git a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
index 7130ed5dc1fa..cb3cf770b00c 100644
--- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
+++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
@@ -340,6 +340,9 @@ static struct nf_conntrack_l4proto *builtin_l4proto4[] = {
&nf_conntrack_l4proto_tcp4,
&nf_conntrack_l4proto_udp4,
&nf_conntrack_l4proto_icmp,
+#ifdef CONFIG_NF_CT_PROTO_DCCP
+ &nf_conntrack_l4proto_dccp4,
+#endif
};
static int ipv4_net_init(struct net *net)
diff --git a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
index 500be28ff563..f52338d02951 100644
--- a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
+++ b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
@@ -340,6 +340,9 @@ static struct nf_conntrack_l4proto *builtin_l4proto6[] = {
&nf_conntrack_l4proto_tcp6,
&nf_conntrack_l4proto_udp6,
&nf_conntrack_l4proto_icmpv6,
+#ifdef CONFIG_NF_CT_PROTO_DCCP
+ &nf_conntrack_l4proto_dccp6,
+#endif
};
static int ipv6_net_init(struct net *net)
diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
index 496e1dcbd003..27a3d8c8f8ce 100644
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -146,14 +146,14 @@ config NF_CONNTRACK_LABELS
to connection tracking entries. It selected by the connlabel match.
config NF_CT_PROTO_DCCP
- tristate 'DCCP protocol connection tracking support'
+ bool 'DCCP protocol connection tracking support'
depends on NETFILTER_ADVANCED
- default IP_DCCP
+ default y
help
With this option enabled, the layer 3 independent connection
tracking code will be able to do state tracking on DCCP connections.
- If unsure, say 'N'.
+ If unsure, say Y.
config NF_CT_PROTO_GRE
tristate
diff --git a/net/netfilter/Makefile b/net/netfilter/Makefile
index 3b97d89df2cd..bbd0cc08eff0 100644
--- a/net/netfilter/Makefile
+++ b/net/netfilter/Makefile
@@ -5,6 +5,7 @@ nf_conntrack-$(CONFIG_NF_CONNTRACK_TIMEOUT) += nf_conntrack_timeout.o
nf_conntrack-$(CONFIG_NF_CONNTRACK_TIMESTAMP) += nf_conntrack_timestamp.o
nf_conntrack-$(CONFIG_NF_CONNTRACK_EVENTS) += nf_conntrack_ecache.o
nf_conntrack-$(CONFIG_NF_CONNTRACK_LABELS) += nf_conntrack_labels.o
+nf_conntrack-$(CONFIG_NF_CT_PROTO_DCCP) += nf_conntrack_proto_dccp.o
obj-$(CONFIG_NETFILTER) = netfilter.o
@@ -16,8 +17,6 @@ obj-$(CONFIG_NETFILTER_NETLINK_LOG) += nfnetlink_log.o
# connection tracking
obj-$(CONFIG_NF_CONNTRACK) += nf_conntrack.o
-# SCTP protocol connection tracking
-obj-$(CONFIG_NF_CT_PROTO_DCCP) += nf_conntrack_proto_dccp.o
obj-$(CONFIG_NF_CT_PROTO_GRE) += nf_conntrack_proto_gre.o
obj-$(CONFIG_NF_CT_PROTO_SCTP) += nf_conntrack_proto_sctp.o
obj-$(CONFIG_NF_CT_PROTO_UDPLITE) += nf_conntrack_proto_udplite.o
diff --git a/net/netfilter/nf_conntrack_proto_dccp.c b/net/netfilter/nf_conntrack_proto_dccp.c
index 073b047314dc..b68ce6ac13b3 100644
--- a/net/netfilter/nf_conntrack_proto_dccp.c
+++ b/net/netfilter/nf_conntrack_proto_dccp.c
@@ -9,7 +9,6 @@
*
*/
#include <linux/kernel.h>
-#include <linux/module.h>
#include <linux/init.h>
#include <linux/sysctl.h>
#include <linux/spinlock.h>
@@ -384,17 +383,9 @@ dccp_state_table[CT_DCCP_ROLE_MAX + 1][DCCP_PKT_SYNCACK + 1][CT_DCCP_MAX + 1] =
},
};
-/* this module per-net specifics */
-static unsigned int dccp_net_id __read_mostly;
-struct dccp_net {
- struct nf_proto_net pn;
- int dccp_loose;
- unsigned int dccp_timeout[CT_DCCP_MAX + 1];
-};
-
-static inline struct dccp_net *dccp_pernet(struct net *net)
+static inline struct nf_dccp_net *dccp_pernet(struct net *net)
{
- return net_generic(net, dccp_net_id);
+ return &net->ct.nf_ct_proto.dccp;
}
static bool dccp_pkt_to_tuple(const struct sk_buff *skb, unsigned int dataoff,
@@ -424,7 +415,7 @@ static bool dccp_new(struct nf_conn *ct, const struct sk_buff *skb,
unsigned int dataoff, unsigned int *timeouts)
{
struct net *net = nf_ct_net(ct);
- struct dccp_net *dn;
+ struct nf_dccp_net *dn;
struct dccp_hdr _dh, *dh;
const char *msg;
u_int8_t state;
@@ -719,7 +710,7 @@ static int dccp_nlattr_size(void)
static int dccp_timeout_nlattr_to_obj(struct nlattr *tb[],
struct net *net, void *data)
{
- struct dccp_net *dn = dccp_pernet(net);
+ struct nf_dccp_net *dn = dccp_pernet(net);
unsigned int *timeouts = data;
int i;
@@ -820,7 +811,7 @@ static struct ctl_table dccp_sysctl_table[] = {
#endif /* CONFIG_SYSCTL */
static int dccp_kmemdup_sysctl_table(struct net *net, struct nf_proto_net *pn,
- struct dccp_net *dn)
+ struct nf_dccp_net *dn)
{
#ifdef CONFIG_SYSCTL
if (pn->ctl_table)
@@ -850,7 +841,7 @@ static int dccp_kmemdup_sysctl_table(struct net *net, struct nf_proto_net *pn,
static int dccp_init_net(struct net *net, u_int16_t proto)
{
- struct dccp_net *dn = dccp_pernet(net);
+ struct nf_dccp_net *dn = dccp_pernet(net);
struct nf_proto_net *pn = &dn->pn;
if (!pn->users) {
@@ -868,7 +859,7 @@ static int dccp_init_net(struct net *net, u_int16_t proto)
return dccp_kmemdup_sysctl_table(net, pn, dn);
}
-static struct nf_conntrack_l4proto dccp_proto4 __read_mostly = {
+struct nf_conntrack_l4proto nf_conntrack_l4proto_dccp4 __read_mostly = {
.l3proto = AF_INET,
.l4proto = IPPROTO_DCCP,
.name = "dccp",
@@ -898,11 +889,11 @@ static struct nf_conntrack_l4proto dccp_proto4 __read_mostly = {
.nla_policy = dccp_timeout_nla_policy,
},
#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */
- .net_id = &dccp_net_id,
.init_net = dccp_init_net,
};
+EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_dccp4);
-static struct nf_conntrack_l4proto dccp_proto6 __read_mostly = {
+struct nf_conntrack_l4proto nf_conntrack_l4proto_dccp6 __read_mostly = {
.l3proto = AF_INET6,
.l4proto = IPPROTO_DCCP,
.name = "dccp",
@@ -932,56 +923,6 @@ static struct nf_conntrack_l4proto dccp_proto6 __read_mostly = {
.nla_policy = dccp_timeout_nla_policy,
},
#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */
- .net_id = &dccp_net_id,
.init_net = dccp_init_net,
};
-
-static struct nf_conntrack_l4proto *dccp_proto[] = {
- &dccp_proto4,
- &dccp_proto6,
-};
-
-static __net_init int dccp_net_init(struct net *net)
-{
- return nf_ct_l4proto_pernet_register(net, dccp_proto,
- ARRAY_SIZE(dccp_proto));
-}
-
-static __net_exit void dccp_net_exit(struct net *net)
-{
- nf_ct_l4proto_pernet_unregister(net, dccp_proto,
- ARRAY_SIZE(dccp_proto));
-}
-
-static struct pernet_operations dccp_net_ops = {
- .init = dccp_net_init,
- .exit = dccp_net_exit,
- .id = &dccp_net_id,
- .size = sizeof(struct dccp_net),
-};
-
-static int __init nf_conntrack_proto_dccp_init(void)
-{
- int ret;
-
- ret = register_pernet_subsys(&dccp_net_ops);
- if (ret < 0)
- return ret;
- ret = nf_ct_l4proto_register(dccp_proto, ARRAY_SIZE(dccp_proto));
- if (ret < 0)
- unregister_pernet_subsys(&dccp_net_ops);
- return ret;
-}
-
-static void __exit nf_conntrack_proto_dccp_fini(void)
-{
- nf_ct_l4proto_unregister(dccp_proto, ARRAY_SIZE(dccp_proto));
- unregister_pernet_subsys(&dccp_net_ops);
-}
-
-module_init(nf_conntrack_proto_dccp_init);
-module_exit(nf_conntrack_proto_dccp_fini);
-
-MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
-MODULE_DESCRIPTION("DCCP connection tracking protocol helper");
-MODULE_LICENSE("GPL");
+EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_dccp6);
--
2.1.4
next prev parent reply other threads:[~2016-12-07 21:53 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-07 21:52 [PATCH 00/50] Netfilter/IPVS updates for net-next Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 01/50] ipvs: Use IS_ERR_OR_NULL(svc) instead of IS_ERR(svc) || svc == NULL Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 02/50] ipvs: Decrement ttl Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 03/50] netfilter: update Arturo Borrero Gonzalez email address Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 04/50] netfilter: built-in NAT support for DCCP Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 05/50] netfilter: built-in NAT support for SCTP Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 06/50] netfilter: built-in NAT support for UDPlite Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 07/50] netfilter: nf_log: do not assume ethernet header in netdev family Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 08/50] netfilter: nfnetlink_log: add "nf-logger-5-1" module alias name Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 09/50] netfilter: nf_conntrack_tuple_common.h: fix #include Pablo Neira Ayuso
2016-12-07 21:52 ` Pablo Neira Ayuso [this message]
2016-12-07 21:52 ` [PATCH 11/50] netfilter: conntrack: built-in support for SCTP Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 12/50] netfilter: conntrack: built-in support for UDPlite Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 13/50] netfilter: conntrack: remove unused init_net hook Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 14/50] netfilter: add and use nf_ct_netns_get/put Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 15/50] netfilter: nat: add dependencies on conntrack module Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 16/50] netfilter: nf_tables: add conntrack dependencies for nat/masq/redir expressions Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 17/50] netfilter: conntrack: register hooks in netns when needed by ruleset Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 18/50] netfilter: conntrack: add nf_conntrack_default_on sysctl Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 19/50] netfilter: defrag: only register defrag functionality if needed Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 20/50] netfilter: introduce accessor functions for hook entries Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 21/50] netfilter: decouple nf_hook_entry and nf_hook_ops Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 22/50] netfilter: convert while loops to for loops Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 23/50] netfilter: x_tables: pass xt_counters struct instead of packet counter Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 24/50] netfilter: x_tables: pass xt_counters struct to counter allocator Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 25/50] netfilter: x_tables: pack percpu counter allocations Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 26/50] netfilter: nft_fib: convert htonl to ntohl properly Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 27/50] netfilter: nft_fib_ipv4: initialize *dest to zero Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 28/50] netfilter: nft_payload: layer 4 checksum adjustment for pseudoheader fields Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 29/50] netfilter: xt_multiport: Fix wrong unmatch result with multiple ports Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 30/50] netfilter: ingress: translate 0 nf_hook_slow retval to -1 Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 31/50] netfilter: add and use nf_fwd_netdev_egress Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 32/50] netfilter: nf_tables: add stateful objects Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 33/50] netfilter: nft_counter: add stateful object type Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 34/50] netfilter: nft_quota: " Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 35/50] netfilter: nf_tables: add stateful object reference expression Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 36/50] netfilter: nft_quota: dump consumed quota Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 37/50] netfilter: nf_tables: atomic dump and reset for stateful objects Pablo Neira Ayuso
2016-12-09 0:40 ` Paul Gortmaker
2016-12-09 10:24 ` Pablo Neira Ayuso
2016-12-09 14:24 ` Eric Dumazet
2016-12-09 15:22 ` Eric Dumazet
2016-12-10 12:21 ` Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 38/50] netfilter: nf_tables: notify internal updates of " Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 39/50] netfilter: nft_quota: add depleted flag for objects Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 40/50] netfilter: nf_tables: add stateful object reference to set elements Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 41/50] netfilter: nft_objref: support for stateful object maps Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 42/50] netfilter: nf_tables: allow to filter stateful object dumps by type Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 43/50] netfilter: rpfilter: bypass ipv4 lbcast packets with zeronet source Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 44/50] netfilter: nat: skip checksum on offload SCTP packets Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 45/50] netfilter: nf_tables: constify struct nft_ctx * parameter in nft_trans_alloc() Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 46/50] netfilter: nft_set: introduce nft_{hash, rbtree}_deactivate_one() Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 47/50] netfilter: nf_tables: support for set flushing Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 48/50] netfilter: x_tables: avoid warn and OOM killer on vmalloc call Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 49/50] netfilter: xt_bpf: support ebpf Pablo Neira Ayuso
2016-12-07 21:52 ` [PATCH 50/50] netfilter: nft_quota: allow to restore consumed quota Pablo Neira Ayuso
2016-12-08 0:29 ` [PATCH 00/50] Netfilter/IPVS updates for net-next David Miller
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