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Message-Id: <20220109231640.104123-11-pablo@netfilter.org>
Date: Mon, 10 Jan 2022 00:16:18 +0100
From: Pablo Neira Ayuso <pablo@...filter.org>
To: netfilter-devel@...r.kernel.org
Cc: davem@...emloft.net, netdev@...r.kernel.org, kuba@...nel.org
Subject: [PATCH net-next 10/32] netfilter: flowtable: remove ipv4/ipv6 modules
From: Florian Westphal <fw@...len.de>
Just place the structs and registration in the inet module.
nf_flow_table_ipv6, nf_flow_table_ipv4 and nf_flow_table_inet share
same module dependencies: nf_flow_table, nf_tables.
before:
text data bss dec hex filename
2278 1480 0 3758 eae nf_flow_table_inet.ko
1159 1352 0 2511 9cf nf_flow_table_ipv6.ko
1154 1352 0 2506 9ca nf_flow_table_ipv4.ko
after:
2369 1672 0 4041 fc9 nf_flow_table_inet.ko
Signed-off-by: Florian Westphal <fw@...len.de>
Signed-off-by: Pablo Neira Ayuso <pablo@...filter.org>
---
net/ipv4/netfilter/Kconfig | 8 ++----
net/ipv4/netfilter/Makefile | 3 --
net/ipv4/netfilter/nf_flow_table_ipv4.c | 37 ------------------------
net/ipv6/netfilter/Kconfig | 8 ++----
net/ipv6/netfilter/nf_flow_table_ipv6.c | 38 -------------------------
net/netfilter/nf_flow_table_inet.c | 26 +++++++++++++++++
6 files changed, 30 insertions(+), 90 deletions(-)
diff --git a/net/ipv4/netfilter/Kconfig b/net/ipv4/netfilter/Kconfig
index 63cb953bd019..67087f95579f 100644
--- a/net/ipv4/netfilter/Kconfig
+++ b/net/ipv4/netfilter/Kconfig
@@ -59,12 +59,8 @@ config NF_TABLES_ARP
endif # NF_TABLES
config NF_FLOW_TABLE_IPV4
- tristate "Netfilter flow table IPv4 module"
- depends on NF_FLOW_TABLE
- help
- This option adds the flow table IPv4 support.
-
- To compile it as a module, choose M here.
+ tristate
+ select NF_FLOW_TABLE_INET
config NF_DUP_IPV4
tristate "Netfilter IPv4 packet duplication to alternate destination"
diff --git a/net/ipv4/netfilter/Makefile b/net/ipv4/netfilter/Makefile
index f38fb1368ddb..93bad1184251 100644
--- a/net/ipv4/netfilter/Makefile
+++ b/net/ipv4/netfilter/Makefile
@@ -24,9 +24,6 @@ obj-$(CONFIG_NFT_REJECT_IPV4) += nft_reject_ipv4.o
obj-$(CONFIG_NFT_FIB_IPV4) += nft_fib_ipv4.o
obj-$(CONFIG_NFT_DUP_IPV4) += nft_dup_ipv4.o
-# flow table support
-obj-$(CONFIG_NF_FLOW_TABLE_IPV4) += nf_flow_table_ipv4.o
-
# generic IP tables
obj-$(CONFIG_IP_NF_IPTABLES) += ip_tables.o
diff --git a/net/ipv4/netfilter/nf_flow_table_ipv4.c b/net/ipv4/netfilter/nf_flow_table_ipv4.c
index aba65fe90345..e69de29bb2d1 100644
--- a/net/ipv4/netfilter/nf_flow_table_ipv4.c
+++ b/net/ipv4/netfilter/nf_flow_table_ipv4.c
@@ -1,37 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/netfilter.h>
-#include <net/netfilter/nf_flow_table.h>
-#include <net/netfilter/nf_tables.h>
-
-static struct nf_flowtable_type flowtable_ipv4 = {
- .family = NFPROTO_IPV4,
- .init = nf_flow_table_init,
- .setup = nf_flow_table_offload_setup,
- .action = nf_flow_rule_route_ipv4,
- .free = nf_flow_table_free,
- .hook = nf_flow_offload_ip_hook,
- .owner = THIS_MODULE,
-};
-
-static int __init nf_flow_ipv4_module_init(void)
-{
- nft_register_flowtable_type(&flowtable_ipv4);
-
- return 0;
-}
-
-static void __exit nf_flow_ipv4_module_exit(void)
-{
- nft_unregister_flowtable_type(&flowtable_ipv4);
-}
-
-module_init(nf_flow_ipv4_module_init);
-module_exit(nf_flow_ipv4_module_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Pablo Neira Ayuso <pablo@...filter.org>");
-MODULE_ALIAS_NF_FLOWTABLE(AF_INET);
-MODULE_DESCRIPTION("Netfilter flow table support");
diff --git a/net/ipv6/netfilter/Kconfig b/net/ipv6/netfilter/Kconfig
index f22233e44ee9..97d3d1b36dbc 100644
--- a/net/ipv6/netfilter/Kconfig
+++ b/net/ipv6/netfilter/Kconfig
@@ -48,12 +48,8 @@ endif # NF_TABLES_IPV6
endif # NF_TABLES
config NF_FLOW_TABLE_IPV6
- tristate "Netfilter flow table IPv6 module"
- depends on NF_FLOW_TABLE
- help
- This option adds the flow table IPv6 support.
-
- To compile it as a module, choose M here.
+ tristate
+ select NF_FLOW_TABLE_INET
config NF_DUP_IPV6
tristate "Netfilter IPv6 packet duplication to alternate destination"
diff --git a/net/ipv6/netfilter/nf_flow_table_ipv6.c b/net/ipv6/netfilter/nf_flow_table_ipv6.c
index 667b8af2546a..e69de29bb2d1 100644
--- a/net/ipv6/netfilter/nf_flow_table_ipv6.c
+++ b/net/ipv6/netfilter/nf_flow_table_ipv6.c
@@ -1,38 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/netfilter.h>
-#include <linux/rhashtable.h>
-#include <net/netfilter/nf_flow_table.h>
-#include <net/netfilter/nf_tables.h>
-
-static struct nf_flowtable_type flowtable_ipv6 = {
- .family = NFPROTO_IPV6,
- .init = nf_flow_table_init,
- .setup = nf_flow_table_offload_setup,
- .action = nf_flow_rule_route_ipv6,
- .free = nf_flow_table_free,
- .hook = nf_flow_offload_ipv6_hook,
- .owner = THIS_MODULE,
-};
-
-static int __init nf_flow_ipv6_module_init(void)
-{
- nft_register_flowtable_type(&flowtable_ipv6);
-
- return 0;
-}
-
-static void __exit nf_flow_ipv6_module_exit(void)
-{
- nft_unregister_flowtable_type(&flowtable_ipv6);
-}
-
-module_init(nf_flow_ipv6_module_init);
-module_exit(nf_flow_ipv6_module_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Pablo Neira Ayuso <pablo@...filter.org>");
-MODULE_ALIAS_NF_FLOWTABLE(AF_INET6);
-MODULE_DESCRIPTION("Netfilter flow table IPv6 module");
diff --git a/net/netfilter/nf_flow_table_inet.c b/net/netfilter/nf_flow_table_inet.c
index bc4126d8ef65..5c57ade6bd05 100644
--- a/net/netfilter/nf_flow_table_inet.c
+++ b/net/netfilter/nf_flow_table_inet.c
@@ -54,8 +54,30 @@ static struct nf_flowtable_type flowtable_inet = {
.owner = THIS_MODULE,
};
+static struct nf_flowtable_type flowtable_ipv4 = {
+ .family = NFPROTO_IPV4,
+ .init = nf_flow_table_init,
+ .setup = nf_flow_table_offload_setup,
+ .action = nf_flow_rule_route_ipv4,
+ .free = nf_flow_table_free,
+ .hook = nf_flow_offload_ip_hook,
+ .owner = THIS_MODULE,
+};
+
+static struct nf_flowtable_type flowtable_ipv6 = {
+ .family = NFPROTO_IPV6,
+ .init = nf_flow_table_init,
+ .setup = nf_flow_table_offload_setup,
+ .action = nf_flow_rule_route_ipv6,
+ .free = nf_flow_table_free,
+ .hook = nf_flow_offload_ipv6_hook,
+ .owner = THIS_MODULE,
+};
+
static int __init nf_flow_inet_module_init(void)
{
+ nft_register_flowtable_type(&flowtable_ipv4);
+ nft_register_flowtable_type(&flowtable_ipv6);
nft_register_flowtable_type(&flowtable_inet);
return 0;
@@ -64,6 +86,8 @@ static int __init nf_flow_inet_module_init(void)
static void __exit nf_flow_inet_module_exit(void)
{
nft_unregister_flowtable_type(&flowtable_inet);
+ nft_unregister_flowtable_type(&flowtable_ipv6);
+ nft_unregister_flowtable_type(&flowtable_ipv4);
}
module_init(nf_flow_inet_module_init);
@@ -71,5 +95,7 @@ module_exit(nf_flow_inet_module_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Pablo Neira Ayuso <pablo@...filter.org>");
+MODULE_ALIAS_NF_FLOWTABLE(AF_INET);
+MODULE_ALIAS_NF_FLOWTABLE(AF_INET6);
MODULE_ALIAS_NF_FLOWTABLE(1); /* NFPROTO_INET */
MODULE_DESCRIPTION("Netfilter flow table mixed IPv4/IPv6 module");
--
2.30.2
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