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 struct tcf_ife_info { 10 struct tc_action common; 11 u8 eth_dst[ETH_ALEN]; 12 u8 eth_src[ETH_ALEN]; 13 u16 eth_type; 14 u16 flags; 15 /* list of metaids allowed */ 16 struct list_head metalist; 17 }; 18 #define to_ife(a) ((struct tcf_ife_info *)a) 19 20 struct tcf_meta_info { 21 const struct tcf_meta_ops *ops; 22 void *metaval; 23 u16 metaid; 24 struct list_head metalist; 25 }; 26 27 struct tcf_meta_ops { 28 u16 metaid; /*Maintainer provided ID */ 29 u16 metatype; /*netlink attribute type (look at net/netlink.h) */ 30 const char *name; 31 const char *synopsis; 32 struct list_head list; 33 int (*check_presence)(struct sk_buff *, struct tcf_meta_info *); 34 int (*encode)(struct sk_buff *, void *, struct tcf_meta_info *); 35 int (*decode)(struct sk_buff *, void *, u16 len); 36 int (*get)(struct sk_buff *skb, struct tcf_meta_info *mi); 37 int (*alloc)(struct tcf_meta_info *, void *, gfp_t); 38 void (*release)(struct tcf_meta_info *); 39 int (*validate)(void *val, int len); 40 struct module *owner; 41 }; 42 43 #define MODULE_ALIAS_IFE_META(metan) MODULE_ALIAS("ifemeta" __stringify_1(metan)) 44 45 int ife_get_meta_u32(struct sk_buff *skb, struct tcf_meta_info *mi); 46 int ife_get_meta_u16(struct sk_buff *skb, struct tcf_meta_info *mi); 47 int ife_alloc_meta_u32(struct tcf_meta_info *mi, void *metaval, gfp_t gfp); 48 int ife_alloc_meta_u16(struct tcf_meta_info *mi, void *metaval, gfp_t gfp); 49 int ife_check_meta_u32(u32 metaval, struct tcf_meta_info *mi); 50 int ife_check_meta_u16(u16 metaval, struct tcf_meta_info *mi); 51 int ife_encode_meta_u32(u32 metaval, void *skbdata, struct tcf_meta_info *mi); 52 int ife_validate_meta_u32(void *val, int len); 53 int ife_validate_meta_u16(void *val, int len); 54 int ife_encode_meta_u16(u16 metaval, void *skbdata, struct tcf_meta_info *mi); 55 void ife_release_meta_gen(struct tcf_meta_info *mi); 56 int register_ife_op(struct tcf_meta_ops *mops); 57 int unregister_ife_op(struct tcf_meta_ops *mops); 58 59 #endif /* __NET_TC_IFE_H */ 60