/* 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/ioam6_genl.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); u8 ioam6_trace_compute_nodelen(u32 trace_type); int ioam6_init(void);void ioam6_exit(void); int ioam6_iptunnel_init(void);void ioam6_iptunnel_exit(void); void ioam6_event(enum ioam6_event_type type, struct net *net, gfp_t gfp,		 void *opt, unsigned int opt_len); #endif /* _NET_IOAM6_H */