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 along
  18  * with this program; see the file COPYING; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  20  */
  21
  22 #ifndef _ZEBRA_RTADV_H
  23 #define _ZEBRA_RTADV_H
  24
  25 #include "vty.h"
  26 #include "zebra/interface.h"
  27
  28 /* NB: RTADV is defined in zebra/interface.h above */
  29 #if defined (HAVE_RTADV)
  30
  31 /* Router advertisement prefix. */
  32 struct rtadv_prefix
  33 {
  34   /* Prefix to be advertised. */
  35   struct prefix_ipv6 prefix;
  36
  37   /* The value to be placed in the Valid Lifetime in the Prefix */
  38   u_int32_t AdvValidLifetime;
  39 #define RTADV_VALID_LIFETIME 2592000
  40
  41   /* The value to be placed in the on-link flag */
  42   int AdvOnLinkFlag;
  43
  44   /* The value to be placed in the Preferred Lifetime in the Prefix
  45      Information option, in seconds.*/
  46   u_int32_t AdvPreferredLifetime;
  47 #define RTADV_PREFERRED_LIFETIME 604800
  48
  49   /* The value to be placed in the Autonomous Flag. */
  50   int AdvAutonomousFlag;
  51
  52   /* The value to be placed in the Router Address Flag [RFC6275 7.2]. */
  53   int AdvRouterAddressFlag;
  54 #ifndef ND_OPT_PI_FLAG_RADDR
  55 #define ND_OPT_PI_FLAG_RADDR         0x20
  56 #endif
  57
  58 };
  59
  60 extern void rtadv_config_write (struct vty *, struct interface *);
  61
  62 /* RFC4584 Extension to Sockets API for Mobile IPv6 */
  63
  64 #ifndef ND_OPT_ADV_INTERVAL
  65 #define ND_OPT_ADV_INTERVAL     7   /* Adv Interval Option */
  66 #endif
  67 #ifndef ND_OPT_HA_INFORMATION
  68 #define ND_OPT_HA_INFORMATION   8   /* HA Information Option */
  69 #endif
  70
  71 #ifndef HAVE_STRUCT_ND_OPT_ADV_INTERVAL
  72 struct nd_opt_adv_interval {   /* Advertisement interval option */
  73         uint8_t        nd_opt_ai_type;
  74         uint8_t        nd_opt_ai_len;
  75         uint16_t       nd_opt_ai_reserved;
  76         uint32_t       nd_opt_ai_interval;
  77 } __attribute__((__packed__));
  78 #else
  79 #ifndef HAVE_STRUCT_ND_OPT_ADV_INTERVAL_ND_OPT_AI_TYPE
  80 /* fields may have to be renamed */
  81 #define nd_opt_ai_type          nd_opt_adv_interval_type
  82 #define nd_opt_ai_len           nd_opt_adv_interval_len
  83 #define nd_opt_ai_reserved      nd_opt_adv_interval_reserved
  84 #define nd_opt_ai_interval      nd_opt_adv_interval_ival
  85 #endif
  86 #endif
  87
  88 #ifndef HAVE_STRUCT_ND_OPT_HOMEAGENT_INFO
  89 struct nd_opt_homeagent_info {  /* Home Agent info */
  90         u_int8_t        nd_opt_hai_type;
  91         u_int8_t        nd_opt_hai_len;
  92         u_int16_t       nd_opt_hai_reserved;
  93         u_int16_t       nd_opt_hai_preference;
  94         u_int16_t       nd_opt_hai_lifetime;
  95 } __attribute__((__packed__));
  96 #endif
  97
  98 extern const char *rtadv_pref_strs[];
  99
 100 #endif /* HAVE_RTADV */
 101
 102 typedef enum {
 103   RA_ENABLE = 0,
 104   RA_SUPPRESS,
 105 } ipv6_nd_suppress_ra_status;
 106
 107 extern void rtadv_init (struct zebra_ns *);
 108 extern void rtadv_terminate (struct zebra_ns *);
 109 extern void rtadv_cmd_init (void);
 110 extern void zebra_interface_radv_set (struct zserv *client, int sock, u_short length,
 111                           struct zebra_vrf *zvrf, int enable);
 112
 113 #endif /* _ZEBRA_RTADV_H */