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