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Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
58 lines
1.4 KiB
C
58 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* SR-IPv6 implementation
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*
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* Author:
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* David Lebrun <david.lebrun@uclouvain.be>
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*/
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#ifndef _NET_SEG6_HMAC_H
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#define _NET_SEG6_HMAC_H
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#include <net/flow.h>
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#include <net/ip6_fib.h>
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#include <net/sock.h>
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#include <linux/ip.h>
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#include <linux/ipv6.h>
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#include <linux/route.h>
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#include <net/seg6.h>
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#include <linux/seg6_hmac.h>
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#include <linux/rhashtable-types.h>
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#define SEG6_HMAC_MAX_DIGESTSIZE 160
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#define SEG6_HMAC_RING_SIZE 256
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struct seg6_hmac_info {
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struct rhash_head node;
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struct rcu_head rcu;
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u32 hmackeyid;
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char secret[SEG6_HMAC_SECRET_LEN];
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u8 slen;
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u8 alg_id;
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};
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struct seg6_hmac_algo {
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u8 alg_id;
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char name[64];
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struct crypto_shash * __percpu *tfms;
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struct shash_desc * __percpu *shashs;
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};
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extern int seg6_hmac_compute(struct seg6_hmac_info *hinfo,
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struct ipv6_sr_hdr *hdr, struct in6_addr *saddr,
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u8 *output);
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extern struct seg6_hmac_info *seg6_hmac_info_lookup(struct net *net, u32 key);
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extern int seg6_hmac_info_add(struct net *net, u32 key,
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struct seg6_hmac_info *hinfo);
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extern int seg6_hmac_info_del(struct net *net, u32 key);
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extern int seg6_push_hmac(struct net *net, struct in6_addr *saddr,
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struct ipv6_sr_hdr *srh);
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extern bool seg6_hmac_validate_skb(struct sk_buff *skb);
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extern int seg6_hmac_init(void);
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extern void seg6_hmac_exit(void);
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extern int seg6_hmac_net_init(struct net *net);
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extern void seg6_hmac_net_exit(struct net *net);
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#endif
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