netfilter: nf_tables: merge rt expression into nft core

before:
   text    data     bss     dec     hex filename
   2657     844       0    3501     dad net/netfilter/nft_rt.ko
 100826    2240     401  103467   1942b net/netfilter/nf_tables.ko
after:
   2657     844       0    3501     dad net/netfilter/nft_rt.ko
 102456    2316     401  105173   19ad5 net/netfilter/nf_tables.ko

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/include/net/netfilter/nf_tables_core.h b/include/net/netfilter/nf_tables_core.h
index 3339cce..d6a358a 100644 (file)
--- a/include/net/netfilter/nf_tables_core.h
+++ b/include/net/netfilter/nf_tables_core.h
@@ -11,6 +11,7 @@ extern struct nft_expr_type nft_payload_type;
 extern struct nft_expr_type nft_dynset_type;
 extern struct nft_expr_type nft_range_type;
 extern struct nft_expr_type nft_meta_type;
+extern struct nft_expr_type nft_rt_type;
 
 int nf_tables_core_module_init(void);
 void nf_tables_core_module_exit(void);

diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
index 29a13c7..771f1a4 100644 (file)
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -480,12 +480,6 @@ config NFT_EXTHDR
          This option adds the "exthdr" expression that you can use to match
          IPv6 extension headers and tcp options.
 
-config NFT_RT
-       tristate "Netfilter nf_tables routing module"
-       help
-         This option adds the "rt" expression that you can use to match
-         packet routing information such as the packet nexthop.
-
 config NFT_NUMGEN
        tristate "Netfilter nf_tables number generator module"
        help

diff --git a/net/netfilter/Makefile b/net/netfilter/Makefile
index 89634c3..128dbcf 100644 (file)
--- a/net/netfilter/Makefile
+++ b/net/netfilter/Makefile
@@ -76,12 +76,11 @@ obj-$(CONFIG_NF_DUP_NETDEV) += nf_dup_netdev.o
 nf_tables-objs := nf_tables_core.o nf_tables_api.o nft_chain_filter.o \
                  nf_tables_trace.o nft_immediate.o nft_cmp.o nft_range.o \
                  nft_bitwise.o nft_byteorder.o nft_payload.o nft_lookup.o \
-                 nft_dynset.o nft_meta.o
+                 nft_dynset.o nft_meta.o nft_rt.o
 
 obj-$(CONFIG_NF_TABLES)                += nf_tables.o
 obj-$(CONFIG_NFT_COMPAT)       += nft_compat.o
 obj-$(CONFIG_NFT_EXTHDR)       += nft_exthdr.o
-obj-$(CONFIG_NFT_RT)           += nft_rt.o
 obj-$(CONFIG_NFT_NUMGEN)       += nft_numgen.o
 obj-$(CONFIG_NFT_CT)           += nft_ct.o
 obj-$(CONFIG_NFT_FLOW_OFFLOAD) += nft_flow_offload.o

diff --git a/net/netfilter/nf_tables_core.c b/net/netfilter/nf_tables_core.c
index b67d657..481ce2c 100644 (file)
--- a/net/netfilter/nf_tables_core.c
+++ b/net/netfilter/nf_tables_core.c
@@ -252,6 +252,7 @@ static struct nft_expr_type *nft_basic_types[] = {
        &nft_dynset_type,
        &nft_range_type,
        &nft_meta_type,
+       &nft_rt_type,
 };
 
 int __init nf_tables_core_module_init(void)

diff --git a/net/netfilter/nft_rt.c b/net/netfilter/nft_rt.c
index 11a2071..76dba9f 100644 (file)
--- a/net/netfilter/nft_rt.c
+++ b/net/netfilter/nft_rt.c
@@ -7,8 +7,6 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/module.h>
 #include <linux/netlink.h>
 #include <linux/netfilter.h>
 #include <linux/netfilter/nf_tables.h>
@@ -179,7 +177,6 @@ static int nft_rt_validate(const struct nft_ctx *ctx, const struct nft_expr *exp
        return nft_chain_validate_hooks(ctx->chain, hooks);
 }
 
-static struct nft_expr_type nft_rt_type;
 static const struct nft_expr_ops nft_rt_get_ops = {
        .type           = &nft_rt_type,
        .size           = NFT_EXPR_SIZE(sizeof(struct nft_rt)),
@@ -189,27 +186,10 @@ static const struct nft_expr_ops nft_rt_get_ops = {
        .validate       = nft_rt_validate,
 };
 
-static struct nft_expr_type nft_rt_type __read_mostly = {
+struct nft_expr_type nft_rt_type __read_mostly = {
        .name           = "rt",
        .ops            = &nft_rt_get_ops,
        .policy         = nft_rt_policy,
        .maxattr        = NFTA_RT_MAX,
        .owner          = THIS_MODULE,
 };
-
-static int __init nft_rt_module_init(void)
-{
-       return nft_register_expr(&nft_rt_type);
-}
-
-static void __exit nft_rt_module_exit(void)
-{
-       nft_unregister_expr(&nft_rt_type);
-}
-
-module_init(nft_rt_module_init);
-module_exit(nft_rt_module_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Anders K. Pedersen <akp@cohaesio.com>");
-MODULE_ALIAS_NFT_EXPR("rt");