[linux-block.git] / include / net / ioam6.h

/* SPDX-License-Identifier: GPL-2.0+ */
/*
 *  IPv6 IOAM implementation
 *
 *  Author:
 *  Justin Iurman <justin.iurman@uliege.be>
 */

#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[];
};

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,
			   bool is_input);

int ioam6_init(void);
void ioam6_exit(void);

int ioam6_iptunnel_init(void);
void ioam6_iptunnel_exit(void);

#endif /* _NET_IOAM6_H */
Commit	Line	Data
9ee11f0f JI	1	/* SPDX-License-Identifier: GPL-2.0+ */
	2	/*
	3	* IPv6 IOAM implementation
	4	*
	5	* Author:
	6	* Justin Iurman <justin.iurman@uliege.be>
	7	*/
	8
	9	#ifndef _NET_IOAM6_H
	10	#define _NET_IOAM6_H
	11
	12	#include <linux/net.h>
	13	#include <linux/ipv6.h>
	14	#include <linux/ioam6.h>
	15	#include <linux/rhashtable-types.h>
	16
	17	struct ioam6_namespace {
	18	struct rhash_head head;
	19	struct rcu_head rcu;
	20
	21	struct ioam6_schema __rcu *schema;
	22
	23	__be16 id;
	24	__be32 data;
	25	__be64 data_wide;
	26	};
	27
	28	struct ioam6_schema {
	29	struct rhash_head head;
	30	struct rcu_head rcu;
	31
	32	struct ioam6_namespace __rcu *ns;
	33
	34	u32 id;
	35	int len;
	36	__be32 hdr;
	37
5224f790	38	u8 data[];
9ee11f0f JI	39	};
	40
	41	struct ioam6_pernet_data {
	42	struct mutex lock;
	43	struct rhashtable namespaces;
	44	struct rhashtable schemas;
	45	};
	46
	47	static inline struct ioam6_pernet_data ioam6_pernet(struct net net)
	48	{
	49	#if IS_ENABLED(CONFIG_IPV6)
	50	return net->ipv6.ioam6_data;
	51	#else
	52	return NULL;
	53	#endif
	54	}
	55
	56	struct ioam6_namespace ioam6_namespace(struct net net, __be16 id);
	57	void ioam6_fill_trace_data(struct sk_buff *skb,
	58	struct ioam6_namespace *ns,
52d03786 JI	59	struct ioam6_trace_hdr *trace,
52d03786 JI	60	bool is_input);
9ee11f0f JI	61
	62	int ioam6_init(void);
	63	void ioam6_exit(void);
	64
3edede08 JI	65	int ioam6_iptunnel_init(void);
	66	void ioam6_iptunnel_exit(void);
	67
9ee11f0f	68	#endif /* _NET_IOAM6_H */