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#include <linux/module.h>
   9
  10struct 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
  19struct 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
  27struct tcf_meta_info {
  28        const struct tcf_meta_ops *ops;
  29        void *metaval;
  30        u16 metaid;
  31        struct list_head metalist;
  32};
  33
  34struct 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
  52int ife_get_meta_u32(struct sk_buff *skb, struct tcf_meta_info *mi);
  53int ife_get_meta_u16(struct sk_buff *skb, struct tcf_meta_info *mi);
  54int ife_alloc_meta_u32(struct tcf_meta_info *mi, void *metaval, gfp_t gfp);
  55int ife_alloc_meta_u16(struct tcf_meta_info *mi, void *metaval, gfp_t gfp);
  56int ife_check_meta_u32(u32 metaval, struct tcf_meta_info *mi);
  57int ife_check_meta_u16(u16 metaval, struct tcf_meta_info *mi);
  58int ife_encode_meta_u32(u32 metaval, void *skbdata, struct tcf_meta_info *mi);
  59int ife_validate_meta_u32(void *val, int len);
  60int ife_validate_meta_u16(void *val, int len);
  61int ife_encode_meta_u16(u16 metaval, void *skbdata, struct tcf_meta_info *mi);
  62void ife_release_meta_gen(struct tcf_meta_info *mi);
  63int register_ife_op(struct tcf_meta_ops *mops);
  64int unregister_ife_op(struct tcf_meta_ops *mops);
  65
  66#endif /* __NET_TC_IFE_H */
  67