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- /* SPDX-License-Identifier: GPL-2.0-or-later */
- /*
- * SR-IPv6 implementation
- *
- * Author:
- * David Lebrun <[email protected]>
- */
- #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
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