2 * SR-IPv6 implementation
5 * David Lebrun <david.lebrun@uclouvain.be>
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version
11 * 2 of the License, or (at your option) any later version.
14 #ifndef _NET_SEG6_HMAC_H
15 #define _NET_SEG6_HMAC_H
18 #include <net/ip6_fib.h>
21 #include <linux/ipv6.h>
22 #include <linux/route.h>
24 #include <linux/seg6_hmac.h>
25 #include <linux/rhashtable.h>
27 #define SEG6_HMAC_MAX_DIGESTSIZE 160
28 #define SEG6_HMAC_RING_SIZE 256
30 struct seg6_hmac_info {
31 struct rhash_head node;
35 char secret[SEG6_HMAC_SECRET_LEN];
40 struct seg6_hmac_algo {
43 struct crypto_shash * __percpu *tfms;
44 struct shash_desc * __percpu *shashs;
47 extern int seg6_hmac_compute(struct seg6_hmac_info *hinfo,
48 struct ipv6_sr_hdr *hdr, struct in6_addr *saddr,
50 extern struct seg6_hmac_info *seg6_hmac_info_lookup(struct net *net, u32 key);
51 extern int seg6_hmac_info_add(struct net *net, u32 key,
52 struct seg6_hmac_info *hinfo);
53 extern int seg6_hmac_info_del(struct net *net, u32 key);
54 extern int seg6_push_hmac(struct net *net, struct in6_addr *saddr,
55 struct ipv6_sr_hdr *srh);
56 extern bool seg6_hmac_validate_skb(struct sk_buff *skb);
57 extern int seg6_hmac_init(void);
58 extern void seg6_hmac_exit(void);
59 extern int seg6_hmac_net_init(struct net *net);
60 extern void seg6_hmac_net_exit(struct net *net);