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         /* Prefix to be advertised. */
  34         struct prefix_ipv6 prefix;
  35
  36         /* The value to be placed in the Valid Lifetime in the Prefix */
  37         uint32_t AdvValidLifetime;
  38 #define RTADV_VALID_LIFETIME 2592000
  39
  40         /* The value to be placed in the on-link flag */
  41         int AdvOnLinkFlag;
  42
  43         /* The value to be placed in the Preferred Lifetime in the Prefix
  44            Information option, in seconds.*/
  45         uint32_t AdvPreferredLifetime;
  46 #define RTADV_PREFERRED_LIFETIME 604800
  47
  48         /* The value to be placed in the Autonomous Flag. */
  49         int AdvAutonomousFlag;
  50
  51         /* The value to be placed in the Router Address Flag [RFC6275 7.2]. */
  52         int AdvRouterAddressFlag;
  53 #ifndef ND_OPT_PI_FLAG_RADDR
  54 #define ND_OPT_PI_FLAG_RADDR         0x20
  55 #endif
  56 };
  57
  58 /* RFC4584 Extension to Sockets API for Mobile IPv6 */
  59
  60 #ifndef ND_OPT_ADV_INTERVAL
  61 #define ND_OPT_ADV_INTERVAL     7   /* Adv Interval Option */
  62 #endif
  63 #ifndef ND_OPT_HA_INFORMATION
  64 #define ND_OPT_HA_INFORMATION   8   /* HA Information Option */
  65 #endif
  66
  67 #ifndef HAVE_STRUCT_ND_OPT_ADV_INTERVAL
  68 struct nd_opt_adv_interval { /* Advertisement interval option */
  69         uint8_t nd_opt_ai_type;
  70         uint8_t nd_opt_ai_len;
  71         uint16_t nd_opt_ai_reserved;
  72         uint32_t nd_opt_ai_interval;
  73 } __attribute__((__packed__));
  74 #else
  75 #ifndef HAVE_STRUCT_ND_OPT_ADV_INTERVAL_ND_OPT_AI_TYPE
  76 /* fields may have to be renamed */
  77 #define nd_opt_ai_type          nd_opt_adv_interval_type
  78 #define nd_opt_ai_len           nd_opt_adv_interval_len
  79 #define nd_opt_ai_reserved      nd_opt_adv_interval_reserved
  80 #define nd_opt_ai_interval      nd_opt_adv_interval_ival
  81 #endif
  82 #endif
  83
  84 #ifndef HAVE_STRUCT_ND_OPT_HOMEAGENT_INFO
  85 struct nd_opt_homeagent_info { /* Home Agent info */
  86         uint8_t nd_opt_hai_type;
  87         uint8_t nd_opt_hai_len;
  88         uint16_t nd_opt_hai_reserved;
  89         uint16_t nd_opt_hai_preference;
  90         uint16_t nd_opt_hai_lifetime;
  91 } __attribute__((__packed__));
  92 #endif
  93
  94 extern const char *rtadv_pref_strs[];
  95
  96 #endif /* HAVE_RTADV */
  97
  98 typedef enum {
  99         RA_ENABLE = 0,
 100         RA_SUPPRESS,
 101 } ipv6_nd_suppress_ra_status;
 102
 103 extern void rtadv_init(struct zebra_ns *);
 104 extern void rtadv_terminate(struct zebra_ns *);
 105 extern void rtadv_cmd_init(void);
 106 extern void zebra_interface_radv_disable(ZAPI_HANDLER_ARGS);
 107 extern void zebra_interface_radv_enable(ZAPI_HANDLER_ARGS);
 108
 109
 110 #endif /* _ZEBRA_RTADV_H */