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netfilter: merge meta_bridge into nft_meta

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It overcomplicates things for no reason.
nft_meta_bridge only offers retrieval of bridge port interface name.

Because of this being its own module, we had to export all nft_meta
functions, which we can then make static again (which even reduces
the size of nft_meta -- including bridge port retrieval...):

before:
   text    data     bss     dec     hex filename
   1838     832       0    2670     a6e net/bridge/netfilter/nft_meta_bridge.ko
   6147     936       1    7084    1bac net/netfilter/nft_meta.ko

after:
   5826     936       1    6763    1a6b net/netfilter/nft_meta.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
2018-04-16 19:15:53 +02:00
committed by Pablo Neira Ayuso
parent 99a0efbeeb
commit bd2bbdb497
5 changed files with 58 additions and 219 deletions
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44
include/net/netfilter/nft_meta.h
View File

@@ -1,44 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _NFT_META_H_
#define _NFT_META_H_
struct nft_meta {
enum nft_meta_keys key:8;
union {
enum nft_registers dreg:8;
enum nft_registers sreg:8;
};
};
extern const struct nla_policy nft_meta_policy[];
int nft_meta_get_init(const struct nft_ctx *ctx,
const struct nft_expr *expr,
const struct nlattr * const tb[]);
int nft_meta_set_init(const struct nft_ctx *ctx,
const struct nft_expr *expr,
const struct nlattr * const tb[]);
int nft_meta_get_dump(struct sk_buff *skb,
const struct nft_expr *expr);
int nft_meta_set_dump(struct sk_buff *skb,
const struct nft_expr *expr);
void nft_meta_get_eval(const struct nft_expr *expr,
struct nft_regs *regs,
const struct nft_pktinfo *pkt);
void nft_meta_set_eval(const struct nft_expr *expr,
struct nft_regs *regs,
const struct nft_pktinfo *pkt);
void nft_meta_set_destroy(const struct nft_ctx *ctx,
const struct nft_expr *expr);
int nft_meta_set_validate(const struct nft_ctx *ctx,
const struct nft_expr *expr,
const struct nft_data **data);
#endif