seg6_hmac.h (1473B)
1/* SPDX-License-Identifier: GPL-2.0-or-later */ 2/* 3 * SR-IPv6 implementation 4 * 5 * Author: 6 * David Lebrun <david.lebrun@uclouvain.be> 7 */ 8 9#ifndef _NET_SEG6_HMAC_H 10#define _NET_SEG6_HMAC_H 11 12#include <net/flow.h> 13#include <net/ip6_fib.h> 14#include <net/sock.h> 15#include <linux/ip.h> 16#include <linux/ipv6.h> 17#include <linux/route.h> 18#include <net/seg6.h> 19#include <linux/seg6_hmac.h> 20#include <linux/rhashtable-types.h> 21 22#define SEG6_HMAC_MAX_DIGESTSIZE 160 23#define SEG6_HMAC_RING_SIZE 256 24 25struct seg6_hmac_info { 26 struct rhash_head node; 27 struct rcu_head rcu; 28 29 u32 hmackeyid; 30 char secret[SEG6_HMAC_SECRET_LEN]; 31 u8 slen; 32 u8 alg_id; 33}; 34 35struct seg6_hmac_algo { 36 u8 alg_id; 37 char name[64]; 38 struct crypto_shash * __percpu *tfms; 39 struct shash_desc * __percpu *shashs; 40}; 41 42extern int seg6_hmac_compute(struct seg6_hmac_info *hinfo, 43 struct ipv6_sr_hdr *hdr, struct in6_addr *saddr, 44 u8 *output); 45extern struct seg6_hmac_info *seg6_hmac_info_lookup(struct net *net, u32 key); 46extern int seg6_hmac_info_add(struct net *net, u32 key, 47 struct seg6_hmac_info *hinfo); 48extern int seg6_hmac_info_del(struct net *net, u32 key); 49extern int seg6_push_hmac(struct net *net, struct in6_addr *saddr, 50 struct ipv6_sr_hdr *srh); 51extern bool seg6_hmac_validate_skb(struct sk_buff *skb); 52extern int seg6_hmac_init(void); 53extern void seg6_hmac_exit(void); 54extern int seg6_hmac_net_init(struct net *net); 55extern void seg6_hmac_net_exit(struct net *net); 56 57#endif