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
9 struct module;
10
11 struct 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
20 struct 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
28 struct tcf_meta_info {
29 const struct tcf_meta_ops *ops;
30 void *metaval;
31 u16 metaid;
32 struct list_head metalist;
33 };
34
35 struct 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
53 int ife_get_meta_u32(struct sk_buff *skb, struct tcf_meta_info *mi);
54 int ife_get_meta_u16(struct sk_buff *skb, struct tcf_meta_info *mi);
55 int ife_alloc_meta_u32(struct tcf_meta_info *mi, void *metaval, gfp_t gfp);
56 int ife_alloc_meta_u16(struct tcf_meta_info *mi, void *metaval, gfp_t gfp);
57 int ife_check_meta_u32(u32 metaval, struct tcf_meta_info *mi);
58 int ife_check_meta_u16(u16 metaval, struct tcf_meta_info *mi);
59 int ife_encode_meta_u32(u32 metaval, void *skbdata, struct tcf_meta_info *mi);
60 int ife_validate_meta_u32(void *val, int len);
61 int ife_validate_meta_u16(void *val, int len);
62 int ife_encode_meta_u16(u16 metaval, void *skbdata, struct tcf_meta_info *mi);
63 void ife_release_meta_gen(struct tcf_meta_info *mi);
64 int register_ife_op(struct tcf_meta_ops *mops);
65 int unregister_ife_op(struct tcf_meta_ops *mops);
66
67 #endif /* __NET_TC_IFE_H */
68
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.