vrrpd/vrrp_ndisc.h

   1 /*
   2  * VRRP Neighbor Discovery.
   3  * Copyright (C) 2019 Cumulus Networks, Inc.
   4  * Quentin Young
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by the Free
   8  * Software Foundation; either version 2 of the License, or (at your option)
   9  * any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  14  * more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along with
  17  * this program; see the file COPYING; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  19  */
  20 #ifndef __VRRP_NDISC_H__
  21 #define __VRRP_NDISC_H__
  22
  23 #include <netinet/icmp6.h>
  24 #include <netinet/in.h>
  25 #include <netinet/ip6.h>
  26
  27 #include "vrrp.h"
  28
  29 /*
  30  * Initialize VRRP neighbor discovery.
  31  */
  32 extern void vrrp_ndisc_init(void);
  33
  34 /*
  35  * Check whether VRRP Neighbor Discovery is initialized.
  36  *
  37  * Returns:
  38  *    True if initialized, false otherwise
  39  */
  40 extern bool vrrp_ndisc_is_init(void);
  41
  42 /*
  43  * Finish VRRP Neighbor Discovery.
  44  */
  45 extern void vrrp_ndisc_fini(void);
  46
  47 /*
  48  * Send VRRP Neighbor Advertisement.
  49  *
  50  * ifp
  51  *    Interface to transmit on
  52  *
  53  * ip
  54  *    IPv6 address to send Neighbor Advertisement for
  55  *
  56  * Returns:
  57  *    -1 on failure
  58  *     0 otherwise
  59  */
  60 extern int vrrp_ndisc_una_send(struct vrrp_router *r, struct ipaddr *ip);
  61
  62 /*
  63  * Send VRRP Neighbor Advertisements for all virtual IPs.
  64  *
  65  * r
  66  *    Virtual Router to send NA's for
  67  *
  68  * Returns:
  69  *    -1 on failure
  70  *     0 otherwise
  71  */
  72 extern int vrrp_ndisc_una_send_all(struct vrrp_router *r);
  73
  74 #endif /* __VRRP_NDISC_H__ */