| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 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 */ |