| David Lebrun | bf355b8 | 2016-11-08 14:57:42 +0100 | [diff] [blame] | 1 | /* |
| 2 | * SR-IPv6 implementation |
| 3 | * |
| 4 | * Author: |
| 5 | * David Lebrun <david.lebrun@uclouvain.be> |
| 6 | * |
| 7 | * |
| 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. |
| 12 | */ |
| 13 | |
| 14 | #ifndef _NET_SEG6_HMAC_H |
| 15 | #define _NET_SEG6_HMAC_H |
| 16 | |
| 17 | #include <net/flow.h> |
| 18 | #include <net/ip6_fib.h> |
| 19 | #include <net/sock.h> |
| 20 | #include <linux/ip.h> |
| 21 | #include <linux/ipv6.h> |
| 22 | #include <linux/route.h> |
| 23 | #include <net/seg6.h> |
| 24 | #include <linux/seg6_hmac.h> |
| 25 | #include <linux/rhashtable.h> |
| 26 | |
| 27 | #define SEG6_HMAC_MAX_DIGESTSIZE 160 |
| 28 | #define SEG6_HMAC_RING_SIZE 256 |
| 29 | |
| 30 | struct seg6_hmac_info { |
| 31 | struct rhash_head node; |
| 32 | struct rcu_head rcu; |
| 33 | |
| 34 | u32 hmackeyid; |
| 35 | char secret[SEG6_HMAC_SECRET_LEN]; |
| 36 | u8 slen; |
| 37 | u8 alg_id; |
| 38 | }; |
| 39 | |
| 40 | struct seg6_hmac_algo { |
| 41 | u8 alg_id; |
| 42 | char name[64]; |
| 43 | struct crypto_shash * __percpu *tfms; |
| 44 | struct shash_desc * __percpu *shashs; |
| 45 | }; |
| 46 | |
| 47 | extern int seg6_hmac_compute(struct seg6_hmac_info *hinfo, |
| 48 | struct ipv6_sr_hdr *hdr, struct in6_addr *saddr, |
| 49 | u8 *output); |
| 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); |
| 61 | |
| 62 | #endif |