Quelle  tc_vlan.h   Sprache: C

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (c) 2014 Jiri Pirko <jiri@resnulli.us>
 */

#ifndef __NET_TC_VLAN_H
#define __NET_TC_VLAN_H

#include <net/act_api.h>
#include <linux/tc_act/tc_vlan.h>

struct tcf_vlan_params {
 int               tcfv_action;
 unsigned char     tcfv_push_dst[ETH_ALEN];
 unsigned char     tcfv_push_src[ETH_ALEN];
 u16               tcfv_push_vid;
 __be16            tcfv_push_proto;
 u8                tcfv_push_prio;
 bool              tcfv_push_prio_exists;
 struct rcu_head   rcu;
};

struct tcf_vlan {
 struct tc_action common;
 struct tcf_vlan_params __rcu *vlan_p;
};
#define to_vlan(a) ((struct tcf_vlan *)a)

static inline u32 tcf_vlan_action(const struct tc_action *a)
{
 u32 tcfv_action;

 rcu_read_lock();
 tcfv_action = rcu_dereference(to_vlan(a)->vlan_p)->tcfv_action;
 rcu_read_unlock();

 return tcfv_action;
}

static inline u16 tcf_vlan_push_vid(const struct tc_action *a)
{
 u16 tcfv_push_vid;

 rcu_read_lock();
 tcfv_push_vid = rcu_dereference(to_vlan(a)->vlan_p)->tcfv_push_vid;
 rcu_read_unlock();

 return tcfv_push_vid;
}

static inline __be16 tcf_vlan_push_proto(const struct tc_action *a)
{
 __be16 tcfv_push_proto;

 rcu_read_lock();
 tcfv_push_proto = rcu_dereference(to_vlan(a)->vlan_p)->tcfv_push_proto;
 rcu_read_unlock();

 return tcfv_push_proto;
}

static inline u8 tcf_vlan_push_prio(const struct tc_action *a)
{
 u8 tcfv_push_prio;

 rcu_read_lock();
 tcfv_push_prio = rcu_dereference(to_vlan(a)->vlan_p)->tcfv_push_prio;
 rcu_read_unlock();

 return tcfv_push_prio;
}

static inline void tcf_vlan_push_eth(unsigned char *src, unsigned char *dest,
         const struct tc_action *a)
{
 rcu_read_lock();
 memcpy(dest, rcu_dereference(to_vlan(a)->vlan_p)->tcfv_push_dst, ETH_ALEN);
 memcpy(src, rcu_dereference(to_vlan(a)->vlan_p)->tcfv_push_src, ETH_ALEN);
 rcu_read_unlock();
}

#endif /* __NET_TC_VLAN_H */