1#ifndef __NET_TC_IFE_H
 2#define __NET_TC_IFE_H
 3
 4#include <net/act_api.h>
 5#include <linux/etherdevice.h>
 6#include <linux/rtnetlink.h>
 7#include <linux/module.h>
 8
 9#define IFE_METAHDRLEN 2
10struct tcf_ife_info {
11	struct tcf_common common;
12	u8 eth_dst[ETH_ALEN];
13	u8 eth_src[ETH_ALEN];
14	u16 eth_type;
15	u16 flags;
 
 
 
 
 
 
 
16	/* list of metaids allowed */
17	struct list_head metalist;
18};
19#define to_ife(a) \
20	container_of(a->priv, struct tcf_ife_info, common)
21
22struct tcf_meta_info {
23	const struct tcf_meta_ops *ops;
24	void *metaval;
25	u16 metaid;
26	struct list_head metalist;
27};
28
29struct tcf_meta_ops {
30	u16 metaid; /*Maintainer provided ID */
31	u16 metatype; /*netlink attribute type (look at net/netlink.h) */
32	const char *name;
33	const char *synopsis;
34	struct list_head list;
35	int	(*check_presence)(struct sk_buff *, struct tcf_meta_info *);
36	int	(*encode)(struct sk_buff *, void *, struct tcf_meta_info *);
37	int	(*decode)(struct sk_buff *, void *, u16 len);
38	int	(*get)(struct sk_buff *skb, struct tcf_meta_info *mi);
39	int	(*alloc)(struct tcf_meta_info *, void *);
40	void	(*release)(struct tcf_meta_info *);
41	int	(*validate)(void *val, int len);
42	struct module	*owner;
43};
44
45#define MODULE_ALIAS_IFE_META(metan)   MODULE_ALIAS("ifemeta" __stringify_1(metan))
46
47int ife_get_meta_u32(struct sk_buff *skb, struct tcf_meta_info *mi);
48int ife_get_meta_u16(struct sk_buff *skb, struct tcf_meta_info *mi);
49int ife_tlv_meta_encode(void *skbdata, u16 attrtype, u16 dlen,
50			const void *dval);
51int ife_alloc_meta_u32(struct tcf_meta_info *mi, void *metaval);
52int ife_alloc_meta_u16(struct tcf_meta_info *mi, void *metaval);
53int ife_check_meta_u32(u32 metaval, struct tcf_meta_info *mi);
 
54int ife_encode_meta_u32(u32 metaval, void *skbdata, struct tcf_meta_info *mi);
55int ife_validate_meta_u32(void *val, int len);
56int ife_validate_meta_u16(void *val, int len);
 
57void ife_release_meta_gen(struct tcf_meta_info *mi);
58int register_ife_op(struct tcf_meta_ops *mops);
59int unregister_ife_op(struct tcf_meta_ops *mops);
60
61#endif /* __NET_TC_IFE_H */

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef __NET_TC_IFE_H
 3#define __NET_TC_IFE_H
 4
 5#include <net/act_api.h>
 6#include <linux/etherdevice.h>
 7#include <linux/rtnetlink.h>
 
 8
 9struct module;
10
11struct tcf_ife_params {
12	u8 eth_dst[ETH_ALEN];
13	u8 eth_src[ETH_ALEN];
14	u16 eth_type;
15	u16 flags;
16
17	struct rcu_head rcu;
18};
19
20struct tcf_ife_info {
21	struct tc_action common;
22	struct tcf_ife_params __rcu *params;
23	/* list of metaids allowed */
24	struct list_head metalist;
25};
26#define to_ife(a) ((struct tcf_ife_info *)a)
 
27
28struct tcf_meta_info {
29	const struct tcf_meta_ops *ops;
30	void *metaval;
31	u16 metaid;
32	struct list_head metalist;
33};
34
35struct tcf_meta_ops {
36	u16 metaid; /*Maintainer provided ID */
37	u16 metatype; /*netlink attribute type (look at net/netlink.h) */
38	const char *name;
39	const char *synopsis;
40	struct list_head list;
41	int	(*check_presence)(struct sk_buff *, struct tcf_meta_info *);
42	int	(*encode)(struct sk_buff *, void *, struct tcf_meta_info *);
43	int	(*decode)(struct sk_buff *, void *, u16 len);
44	int	(*get)(struct sk_buff *skb, struct tcf_meta_info *mi);
45	int	(*alloc)(struct tcf_meta_info *, void *, gfp_t);
46	void	(*release)(struct tcf_meta_info *);
47	int	(*validate)(void *val, int len);
48	struct module	*owner;
49};
50
51#define MODULE_ALIAS_IFE_META(metan)   MODULE_ALIAS("ife-meta-" metan)
52
53int ife_get_meta_u32(struct sk_buff *skb, struct tcf_meta_info *mi);
54int ife_get_meta_u16(struct sk_buff *skb, struct tcf_meta_info *mi);
55int ife_alloc_meta_u32(struct tcf_meta_info *mi, void *metaval, gfp_t gfp);
56int ife_alloc_meta_u16(struct tcf_meta_info *mi, void *metaval, gfp_t gfp);
 
 
57int ife_check_meta_u32(u32 metaval, struct tcf_meta_info *mi);
58int ife_check_meta_u16(u16 metaval, struct tcf_meta_info *mi);
59int ife_encode_meta_u32(u32 metaval, void *skbdata, struct tcf_meta_info *mi);
60int ife_validate_meta_u32(void *val, int len);
61int ife_validate_meta_u16(void *val, int len);
62int ife_encode_meta_u16(u16 metaval, void *skbdata, struct tcf_meta_info *mi);
63void ife_release_meta_gen(struct tcf_meta_info *mi);
64int register_ife_op(struct tcf_meta_ops *mops);
65int unregister_ife_op(struct tcf_meta_ops *mops);
66
67#endif /* __NET_TC_IFE_H */