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718e3744 1/* Router advertisement
7cee1bb1 2 * Copyright (C) 2005 6WIND <jean-mickael.guerin@6wind.com>
718e3744 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 *
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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
718e3744 20 */
21
22#ifndef _ZEBRA_RTADV_H
23#define _ZEBRA_RTADV_H
24
30a2231a 25#include "vty.h"
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26#include "zebra/interface.h"
27
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28#ifdef __cplusplus
29extern "C" {
30#endif
31
36735ed9 32/* NB: RTADV is defined in zebra/interface.h above */
d62a17ae 33#if defined(HAVE_RTADV)
36735ed9 34
718e3744 35/* Router advertisement prefix. */
d62a17ae 36struct rtadv_prefix {
37 /* Prefix to be advertised. */
38 struct prefix_ipv6 prefix;
39
40 /* The value to be placed in the Valid Lifetime in the Prefix */
d7c0a89a 41 uint32_t AdvValidLifetime;
718e3744 42#define RTADV_VALID_LIFETIME 2592000
43
d62a17ae 44 /* The value to be placed in the on-link flag */
45 int AdvOnLinkFlag;
718e3744 46
d62a17ae 47 /* The value to be placed in the Preferred Lifetime in the Prefix
48 Information option, in seconds.*/
d7c0a89a 49 uint32_t AdvPreferredLifetime;
718e3744 50#define RTADV_PREFERRED_LIFETIME 604800
51
d62a17ae 52 /* The value to be placed in the Autonomous Flag. */
53 int AdvAutonomousFlag;
7cee1bb1 54
d62a17ae 55 /* The value to be placed in the Router Address Flag [RFC6275 7.2]. */
56 int AdvRouterAddressFlag;
7cee1bb1 57#ifndef ND_OPT_PI_FLAG_RADDR
58#define ND_OPT_PI_FLAG_RADDR 0x20
59#endif
718e3744 60};
61
6eb0c5ab 62/* RFC4584 Extension to Sockets API for Mobile IPv6 */
7cee1bb1 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
6f0e3f6e 71#ifndef HAVE_STRUCT_ND_OPT_ADV_INTERVAL
d62a17ae 72struct 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;
7cee1bb1 77} __attribute__((__packed__));
78#else
6f0e3f6e 79#ifndef HAVE_STRUCT_ND_OPT_ADV_INTERVAL_ND_OPT_AI_TYPE
7cee1bb1 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
6f0e3f6e 88#ifndef HAVE_STRUCT_ND_OPT_HOMEAGENT_INFO
d62a17ae 89struct nd_opt_homeagent_info { /* Home Agent info */
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90 uint8_t nd_opt_hai_type;
91 uint8_t nd_opt_hai_len;
92 uint16_t nd_opt_hai_reserved;
93 uint16_t nd_opt_hai_preference;
94 uint16_t nd_opt_hai_lifetime;
7cee1bb1 95} __attribute__((__packed__));
96#endif
97
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98#ifndef ND_OPT_RDNSS
99#define ND_OPT_RDNSS 25
100#endif
101#ifndef ND_OPT_DNSSL
102#define ND_OPT_DNSSL 31
103#endif
104
105#ifndef HAVE_STRUCT_ND_OPT_RDNSS
106struct nd_opt_rdnss { /* Recursive DNS server option [RFC8106 5.1] */
107 uint8_t nd_opt_rdnss_type;
108 uint8_t nd_opt_rdnss_len;
109 uint16_t nd_opt_rdnss_reserved;
110 uint32_t nd_opt_rdnss_lifetime;
111 /* Followed by one or more IPv6 addresses */
112} __attribute__((__packed__));
113#endif
114
115#ifndef HAVE_STRUCT_ND_OPT_DNSSL
116struct nd_opt_dnssl { /* DNS search list option [RFC8106 5.2] */
117 uint8_t nd_opt_dnssl_type;
118 uint8_t nd_opt_dnssl_len;
119 uint16_t nd_opt_dnssl_reserved;
120 uint32_t nd_opt_dnssl_lifetime;
121 /*
122 * Followed by one or more domain names encoded as in [RFC1035 3.1].
123 * Multiple domain names are concatenated after encoding. In any case,
124 * the result is zero-padded to a multiple of 8 octets.
125 */
126} __attribute__((__packed__));
127#endif
128
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129extern const char *rtadv_pref_strs[];
130
8da4e946 131#endif /* HAVE_RTADV */
36735ed9 132
b6120505 133typedef enum {
d62a17ae 134 RA_ENABLE = 0,
135 RA_SUPPRESS,
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136} ipv6_nd_suppress_ra_status;
137
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138extern void rtadv_init(struct zebra_vrf *);
139extern void rtadv_terminate(struct zebra_vrf *);
d62a17ae 140extern void rtadv_cmd_init(void);
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141extern void zebra_interface_radv_disable(ZAPI_HANDLER_ARGS);
142extern void zebra_interface_radv_enable(ZAPI_HANDLER_ARGS);
cd80d74f 143
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144#ifdef __cplusplus
145}
146#endif
1002497a 147
718e3744 148#endif /* _ZEBRA_RTADV_H */