LXR linux/include/net/tc_act/tc

   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 */
  68