/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * SR-IPv6 implementation * * Author: * David Lebrun <david.lebrun@uclouvain.be> */ #ifndef _NET_SEG6_HMAC_H #define _NET_SEG6_HMAC_H #include <net/flow.h> #include <net/ip6_fib.h> #include <net/sock.h> #include <linux/ip.h> #include <linux/ipv6.h> #include <linux/route.h> #include <net/seg6.h> #include <linux/seg6_hmac.h> #include <linux/rhashtable-types.h> #define SEG6_HMAC_MAX_DIGESTSIZE 160 #define SEG6_HMAC_RING_SIZE 256 struct seg6_hmac_info { struct rhash_head node; struct rcu_head rcu; u32 hmackeyid; char secret[SEG6_HMAC_SECRET_LEN]; u8 slen; u8 alg_id; }; struct seg6_hmac_algo { u8 alg_id; char name[64]; struct crypto_shash * __percpu *tfms; struct shash_desc * __percpu *shashs; }; extern int seg6_hmac_compute(struct seg6_hmac_info *hinfo, struct ipv6_sr_hdr *hdr, struct in6_addr *saddr, u8 *output); extern struct seg6_hmac_info *seg6_hmac_info_lookup(struct net *net, u32 key); extern int seg6_hmac_info_add(struct net *net, u32 key, struct seg6_hmac_info *hinfo); extern int seg6_hmac_info_del(struct net *net, u32 key); extern int seg6_push_hmac(struct net *net, struct in6_addr *saddr, struct ipv6_sr_hdr *srh); extern bool seg6_hmac_validate_skb(struct sk_buff *skb); extern int seg6_hmac_init(void); extern void seg6_hmac_exit(void); extern int seg6_hmac_net_init(struct net *net); extern void seg6_hmac_net_exit(struct net *net); #endif