Gitiles
Code Review Sign In
review.shift-gmbh.com / SHIFTPHONES / mainline / linux / f76d77f50b343bc7f7d01e4c2771d43fb074f617 / . / include / net / seg6_hmac.h
blob: 2b5d2ee5613e83a2b1d83fb806ab990fffb1f36c [file] [log] [blame]
Thomas Gleixner2874c5f2019-05-27 08:55:01 +0200[diff] [blame]1/* SPDX-License-Identifier: GPL-2.0-or-later */
David Lebrunbf355b82016-11-08 14:57:42 +0100[diff] [blame]2/*
3 * SR-IPv6 implementation
4 *
5 * Author:
6 * David Lebrun <david.lebrun@uclouvain.be>
David Lebrunbf355b82016-11-08 14:57:42 +0100[diff] [blame]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>
NeilBrown0eb71a92018-06-18 12:52:50 +1000[diff] [blame]20#include <linux/rhashtable-types.h>
David Lebrunbf355b82016-11-08 14:57:42 +0100[diff] [blame]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