xref: /kernel/linux/linux-5.10/net/openvswitch/flow_netlink.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright (c) 2007-2013 Nicira, Inc.
 */


#ifndef FLOW_NETLINK_H
#define FLOW_NETLINK_H 1

#include <linux/kernel.h>
#include <linux/netlink.h>
#include <linux/openvswitch.h>
#include <linux/spinlock.h>
#include <linux/types.h>
#include <linux/rcupdate.h>
#include <linux/if_ether.h>
#include <linux/in6.h>
#include <linux/jiffies.h>
#include <linux/time.h>

#include <net/inet_ecn.h>
#include <net/ip_tunnels.h>

#include "flow.h"

size_t ovs_tun_key_attr_size(void);
size_t ovs_key_attr_size(void);

void ovs_match_init(struct sw_flow_match *match,
		    struct sw_flow_key *key, bool reset_key,
		    struct sw_flow_mask *mask);

int ovs_nla_put_key(const struct sw_flow_key *, const struct sw_flow_key *,
		    int attr, bool is_mask, struct sk_buff *);
int parse_flow_nlattrs(const struct nlattr *attr, const struct nlattr *a[],
		       u64 *attrsp, bool log);
int ovs_nla_get_flow_metadata(struct net *net,
			      const struct nlattr *a[OVS_KEY_ATTR_MAX + 1],
			      u64 attrs, struct sw_flow_key *key, bool log);

int ovs_nla_put_identifier(const struct sw_flow *flow, struct sk_buff *skb);
int ovs_nla_put_masked_key(const struct sw_flow *flow, struct sk_buff *skb);
int ovs_nla_put_mask(const struct sw_flow *flow, struct sk_buff *skb);

int ovs_nla_get_match(struct net *, struct sw_flow_match *,
		      const struct nlattr *key, const struct nlattr *mask,
		      bool log);

int ovs_nla_put_tunnel_info(struct sk_buff *skb,
			    struct ip_tunnel_info *tun_info);

bool ovs_nla_get_ufid(struct sw_flow_id *, const struct nlattr *, bool log);
int ovs_nla_get_identifier(struct sw_flow_id *sfid, const struct nlattr *ufid,
			   const struct sw_flow_key *key, bool log);
u32 ovs_nla_get_ufid_flags(const struct nlattr *attr);

int ovs_nla_copy_actions(struct net *net, const struct nlattr *attr,
			 const struct sw_flow_key *key,
			 struct sw_flow_actions **sfa, bool log);
int ovs_nla_add_action(struct sw_flow_actions **sfa, int attrtype,
		       void *data, int len, bool log);
int ovs_nla_put_actions(const struct nlattr *attr,
			int len, struct sk_buff *skb);

void ovs_nla_free_flow_actions(struct sw_flow_actions *);
void ovs_nla_free_flow_actions_rcu(struct sw_flow_actions *);

int nsh_key_from_nlattr(const struct nlattr *attr, struct ovs_key_nsh *nsh,
			struct ovs_key_nsh *nsh_mask);
int nsh_hdr_from_nlattr(const struct nlattr *attr, struct nshhdr *nh,
			size_t size);

#endif /* flow_netlink.h */