include/net/seg6_local.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  *  SR-IPv6 implementation
   4  *
   5  *  Authors:
   6  *  David Lebrun <david.lebrun@uclouvain.be>
   7  *  eBPF support: Mathieu Xhonneux <m.xhonneux@gmail.com>
   8  */
   9
  10 #ifndef _NET_SEG6_LOCAL_H
  11 #define _NET_SEG6_LOCAL_H
  12
  13 #include <linux/percpu.h>
  14 #include <linux/net.h>
  15 #include <linux/ipv6.h>
  16
  17 extern int seg6_lookup_nexthop(struct sk_buff *skb, struct in6_addr *nhaddr,
  18                                u32 tbl_id);
  19 extern bool seg6_bpf_has_valid_srh(struct sk_buff *skb);
  20
  21 struct seg6_bpf_srh_state {
  22         local_lock_t bh_lock;
  23         struct ipv6_sr_hdr *srh;
  24         u16 hdrlen;
  25         bool valid;
  26 };
  27
  28 DECLARE_PER_CPU(struct seg6_bpf_srh_state, seg6_bpf_srh_states);
  29
  30 #endif