| /* |
| * SR-IPv6 implementation |
| * |
| * Author: |
| * David Lebrun <david.lebrun@uclouvain.be> |
| * |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version |
| * 2 of the License, or (at your option) any later version. |
| */ |
| |
| #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 |