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#ifdef RTADV
31
32/* Router advertisement prefix. */
33struct 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
61extern void rtadv_config_write (struct vty *, struct interface *);
62extern void rtadv_init (void);
63
64/* RFC4584 Extension to Sockets API for Mobile IPv6 */
65
66#ifndef ND_OPT_ADV_INTERVAL
67#define ND_OPT_ADV_INTERVAL	7   /* Adv Interval Option */
68#endif
69#ifndef ND_OPT_HA_INFORMATION
70#define ND_OPT_HA_INFORMATION	8   /* HA Information Option */
71#endif
72
73#ifndef HAVE_STRUCT_ND_OPT_ADV_INTERVAL
74struct nd_opt_adv_interval {   /* Advertisement interval option */
75        uint8_t        nd_opt_ai_type;
76        uint8_t        nd_opt_ai_len;
77        uint16_t       nd_opt_ai_reserved;
78        uint32_t       nd_opt_ai_interval;
79} __attribute__((__packed__));
80#else
81#ifndef HAVE_STRUCT_ND_OPT_ADV_INTERVAL_ND_OPT_AI_TYPE
82/* fields may have to be renamed */
83#define nd_opt_ai_type		nd_opt_adv_interval_type
84#define nd_opt_ai_len		nd_opt_adv_interval_len
85#define nd_opt_ai_reserved	nd_opt_adv_interval_reserved
86#define nd_opt_ai_interval	nd_opt_adv_interval_ival
87#endif
88#endif
89
90#ifndef HAVE_STRUCT_ND_OPT_HOMEAGENT_INFO
91struct nd_opt_homeagent_info {  /* Home Agent info */
92        u_int8_t        nd_opt_hai_type;
93        u_int8_t        nd_opt_hai_len;
94        u_int16_t       nd_opt_hai_reserved;
95        u_int16_t       nd_opt_hai_preference;
96        u_int16_t       nd_opt_hai_lifetime;
97} __attribute__((__packed__));
98#endif
99
100extern const char *rtadv_pref_strs[];
101
102#endif /* RTADV */
103
104#endif /* _ZEBRA_RTADV_H */
105