zebra/rtadv.h

   1 /* Router advertisement
   2  * Copyright (C) 2005 6WIND <jean-mickael.guerin@6wind.com>
   3  * Copyright (C) 1999 Kunihiro Ishiguro
   4  *
   5  * This file is part of GNU Zebra.
   6  *
   7  * GNU Zebra is free software; you can redistribute it and/or modify it
   8  * under the terms of the GNU General Public License as published by the
   9  * Free Software Foundation; either version 2, or (at your option) any
  10  * later version.
  11  *
  12  * GNU Zebra is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with GNU Zebra; see the file COPYING.  If not, write to the Free
  19  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  20  * 02111-1307, USA.
  21  */
  22
  23 #ifndef _ZEBRA_RTADV_H
  24 #define _ZEBRA_RTADV_H
  25
  26 #include "vty.h"
  27 #include "zebra/interface.h"
  28
  29 /* NB: RTADV is defined in zebra/interface.h above */
  30 #if defined (HAVE_RTADV)
  31
  32 /* Router advertisement prefix. */
  33 struct rtadv_prefix
  34 {
  35   /* Prefix to be advertised. */
  36   struct prefix_ipv6 prefix;
  37
  38   /* The value to be placed in the Valid Lifetime in the Prefix */
  39   u_int32_t AdvValidLifetime;
  40 #define RTADV_VALID_LIFETIME 2592000
  41
  42   /* The value to be placed in the on-link flag */
  43   int AdvOnLinkFlag;
  44
  45   /* The value to be placed in the Preferred Lifetime in the Prefix
  46      Information option, in seconds.*/
  47   u_int32_t AdvPreferredLifetime;
  48 #define RTADV_PREFERRED_LIFETIME 604800
  49
  50   /* The value to be placed in the Autonomous Flag. */
  51   int AdvAutonomousFlag;
  52
  53   /* The value to be placed in the Router Address Flag [RFC6275 7.2]. */
  54   int AdvRouterAddressFlag;
  55 #ifndef ND_OPT_PI_FLAG_RADDR
  56 #define ND_OPT_PI_FLAG_RADDR         0x20
  57 #endif
  58
  59 };
  60
  61 extern void rtadv_config_write (struct vty *, struct interface *);
  62
  63 /* RFC4584 Extension to Sockets API for Mobile IPv6 */
  64
  65 #ifndef ND_OPT_ADV_INTERVAL
  66 #define ND_OPT_ADV_INTERVAL     7   /* Adv Interval Option */
  67 #endif
  68 #ifndef ND_OPT_HA_INFORMATION
  69 #define ND_OPT_HA_INFORMATION   8   /* HA Information Option */
  70 #endif
  71
  72 #ifndef HAVE_STRUCT_ND_OPT_ADV_INTERVAL
  73 struct nd_opt_adv_interval {   /* Advertisement interval option */
  74         uint8_t        nd_opt_ai_type;
  75         uint8_t        nd_opt_ai_len;
  76         uint16_t       nd_opt_ai_reserved;
  77         uint32_t       nd_opt_ai_interval;
  78 } __attribute__((__packed__));
  79 #else
  80 #ifndef HAVE_STRUCT_ND_OPT_ADV_INTERVAL_ND_OPT_AI_TYPE
  81 /* fields may have to be renamed */
  82 #define nd_opt_ai_type          nd_opt_adv_interval_type
  83 #define nd_opt_ai_len           nd_opt_adv_interval_len
  84 #define nd_opt_ai_reserved      nd_opt_adv_interval_reserved
  85 #define nd_opt_ai_interval      nd_opt_adv_interval_ival
  86 #endif
  87 #endif
  88
  89 #ifndef HAVE_STRUCT_ND_OPT_HOMEAGENT_INFO
  90 struct nd_opt_homeagent_info {  /* Home Agent info */
  91         u_int8_t        nd_opt_hai_type;
  92         u_int8_t        nd_opt_hai_len;
  93         u_int16_t       nd_opt_hai_reserved;
  94         u_int16_t       nd_opt_hai_preference;
  95         u_int16_t       nd_opt_hai_lifetime;
  96 } __attribute__((__packed__));
  97 #endif
  98
  99 extern const char *rtadv_pref_strs[];
 100
 101 #endif /* HAVE_RTADV */
 102
 103 typedef enum {
 104   RA_ENABLE = 0,
 105   RA_SUPPRESS,
 106 } ipv6_nd_suppress_ra_status;
 107
 108 extern void rtadv_init (struct zebra_ns *);
 109 extern void rtadv_terminate (struct zebra_ns *);
 110 extern void rtadv_cmd_init (void);
 111 extern void zebra_interface_radv_set (struct zserv *client, int sock, u_short length,
 112                           struct zebra_vrf *zvrf, int enable);
 113
 114 #endif /* _ZEBRA_RTADV_H */