/* 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[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, 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 */