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netfilter: nft_objref: make it builtin

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nft_objref is needed to reference named objects, it makes
no sense to disable it.

Before:
   text	   data	    bss	    dec	 filename
  4014	    424	      0	   4438	 nft_objref.o
  4174	   1128	      0	   5302	 nft_objref.ko
359351	  15276	    864	 375491	 nf_tables.ko
After:
  text	   data	    bss	    dec	 filename
  3815	    408	      0	   4223	 nft_objref.o
363161	  15692	    864	 379717	 nf_tables.ko

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Florian Westphal 2022-10-21 16:17:53 +02:00 committed by Pablo Neira Ayuso
parent e7a1caa67c
commit d037abc241
5 changed files with 5 additions and 29 deletions
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1
include/net/netfilter/nf_tables_core.h
View File

@ -18,6 +18,7 @@ extern struct nft_expr_type nft_meta_type;
extern struct nft_expr_type nft_rt_type;
extern struct nft_expr_type nft_exthdr_type;
extern struct nft_expr_type nft_last_type;
extern struct nft_expr_type nft_objref_type;
#ifdef CONFIG_NETWORK_SECMARK
extern struct nft_object_type nft_secmark_obj_type;

6
net/netfilter/Kconfig
View File

@ -568,12 +568,6 @@ config NFT_TUNNEL
This option adds the "tunnel" expression that you can use to set
tunneling policies.
config NFT_OBJREF
tristate "Netfilter nf_tables stateful object reference module"
help
This option adds the "objref" expression that allows you to refer to
stateful objects, such as counters and quotas.
config NFT_QUEUE
depends on NETFILTER_NETLINK_QUEUE
tristate "Netfilter nf_tables queue module"

4
net/netfilter/Makefile
View File

@ -86,7 +86,8 @@ 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_rt.o nft_exthdr.o nft_last.o \
nft_counter.o nft_chain_route.o nf_tables_offload.o \
nft_counter.o nft_objref.o \
nft_chain_route.o nf_tables_offload.o \
nft_set_hash.o nft_set_bitmap.o nft_set_rbtree.o \
nft_set_pipapo.o
@ -104,7 +105,6 @@ obj-$(CONFIG_NFT_CT) += nft_ct.o
obj-$(CONFIG_NFT_FLOW_OFFLOAD) += nft_flow_offload.o
obj-$(CONFIG_NFT_LIMIT) += nft_limit.o
obj-$(CONFIG_NFT_NAT) += nft_nat.o
obj-$(CONFIG_NFT_OBJREF) += nft_objref.o
obj-$(CONFIG_NFT_QUEUE) += nft_queue.o
obj-$(CONFIG_NFT_QUOTA) += nft_quota.o
obj-$(CONFIG_NFT_REJECT) += nft_reject.o

1
net/netfilter/nf_tables_core.c
View File

@ -340,6 +340,7 @@ static struct nft_expr_type *nft_basic_types[] = {
&nft_exthdr_type,
&nft_last_type,
&nft_counter_type,
&nft_objref_type,
};
static struct nft_object_type *nft_basic_objects[] = {

22
net/netfilter/nft_objref.c
View File

@ -82,7 +82,6 @@ static void nft_objref_activate(const struct nft_ctx *ctx,
obj->use++;
}
static struct nft_expr_type nft_objref_type;
static const struct nft_expr_ops nft_objref_ops = {
.type = &nft_objref_type,
.size = NFT_EXPR_SIZE(sizeof(struct nft_object *)),
@ -195,7 +194,6 @@ static void nft_objref_map_destroy(const struct nft_ctx *ctx,
nf_tables_destroy_set(ctx, priv->set);
}
static struct nft_expr_type nft_objref_type;
static const struct nft_expr_ops nft_objref_map_ops = {
.type = &nft_objref_type,
.size = NFT_EXPR_SIZE(sizeof(struct nft_objref_map)),
@ -233,28 +231,10 @@ static const struct nla_policy nft_objref_policy[NFTA_OBJREF_MAX + 1] = {
[NFTA_OBJREF_SET_ID] = { .type = NLA_U32 },
};
static struct nft_expr_type nft_objref_type __read_mostly = {
struct nft_expr_type nft_objref_type __read_mostly = {
.name = "objref",
.select_ops = nft_objref_select_ops,
.policy = nft_objref_policy,
.maxattr = NFTA_OBJREF_MAX,
.owner = THIS_MODULE,
};
static int __init nft_objref_module_init(void)
{
return nft_register_expr(&nft_objref_type);
}
static void __exit nft_objref_module_exit(void)
{
nft_unregister_expr(&nft_objref_type);
}
module_init(nft_objref_module_init);
module_exit(nft_objref_module_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Pablo Neira Ayuso <pablo@netfilter.org>");
MODULE_ALIAS_NFT_EXPR("objref");
MODULE_DESCRIPTION("nftables stateful object reference module");