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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* IPv6 IOAM implementation
*
* Author:
* Justin Iurman <[email protected]>
*/
#ifndef _NET_IOAM6_H
#define _NET_IOAM6_H
#include <linux/net.h>
#include <linux/ipv6.h>
#include <linux/ioam6.h>
#include <linux/rhashtable-types.h>
struct ioam6_namespace {
struct rhash_head head;
struct rcu_head rcu;
struct ioam6_schema __rcu *schema;
__be16 id;
__be32 data;
__be64 data_wide;
};
struct ioam6_schema {
struct rhash_head head;
struct rcu_head rcu;
struct ioam6_namespace __rcu *ns;
u32 id;
int len;
__be32 hdr;
u8 data[0];
};
struct ioam6_pernet_data {
struct mutex lock;
struct rhashtable namespaces;
struct rhashtable schemas;
};
static inline struct ioam6_pernet_data *ioam6_pernet(struct net *net)
{
#if IS_ENABLED(CONFIG_IPV6)
return net->ipv6.ioam6_data;
#else
return NULL;
#endif
}
struct ioam6_namespace *ioam6_namespace(struct net *net, __be16 id);
void ioam6_fill_trace_data(struct sk_buff *skb,
struct ioam6_namespace *ns,
struct ioam6_trace_hdr *trace);
int ioam6_init(void);
void ioam6_exit(void);
int ioam6_iptunnel_init(void);
void ioam6_iptunnel_exit(void);
#endif /* _NET_IOAM6_H */