1 /* Router advertisement
2 * Copyright (C) 2005 6WIND <jean-mickael.guerin@6wind.com>
3 * Copyright (C) 1999 Kunihiro Ishiguro
5 * This file is part of GNU Zebra.
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
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.
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
22 #ifndef _ZEBRA_RTADV_H
23 #define _ZEBRA_RTADV_H
26 #include "zebra/interface.h"
32 /* NB: RTADV is defined in zebra/interface.h above */
33 #if defined(HAVE_RTADV)
35 /* Router advertisement prefix. */
37 /* Prefix to be advertised. */
38 struct prefix_ipv6 prefix
;
40 /* The prefix was manually/automatically defined. */
43 /* The value to be placed in the Valid Lifetime in the Prefix */
44 uint32_t AdvValidLifetime
;
45 #define RTADV_VALID_LIFETIME 2592000
47 /* The value to be placed in the on-link flag */
50 /* The value to be placed in the Preferred Lifetime in the Prefix
51 Information option, in seconds.*/
52 uint32_t AdvPreferredLifetime
;
53 #define RTADV_PREFERRED_LIFETIME 604800
55 /* The value to be placed in the Autonomous Flag. */
56 int AdvAutonomousFlag
;
58 /* The value to be placed in the Router Address Flag [RFC6275 7.2]. */
59 int AdvRouterAddressFlag
;
60 #ifndef ND_OPT_PI_FLAG_RADDR
61 #define ND_OPT_PI_FLAG_RADDR 0x20
65 /* RFC4861 minimum delay between RAs */
66 #ifndef MIN_DELAY_BETWEEN_RAS
67 #define MIN_DELAY_BETWEEN_RAS 3000
70 /* RFC4584 Extension to Sockets API for Mobile IPv6 */
72 #ifndef ND_OPT_ADV_INTERVAL
73 #define ND_OPT_ADV_INTERVAL 7 /* Adv Interval Option */
75 #ifndef ND_OPT_HA_INFORMATION
76 #define ND_OPT_HA_INFORMATION 8 /* HA Information Option */
79 #ifndef HAVE_STRUCT_ND_OPT_ADV_INTERVAL
80 struct nd_opt_adv_interval
{ /* Advertisement interval option */
81 uint8_t nd_opt_ai_type
;
82 uint8_t nd_opt_ai_len
;
83 uint16_t nd_opt_ai_reserved
;
84 uint32_t nd_opt_ai_interval
;
85 } __attribute__((__packed__
));
87 #ifndef HAVE_STRUCT_ND_OPT_ADV_INTERVAL_ND_OPT_AI_TYPE
88 /* fields may have to be renamed */
89 #define nd_opt_ai_type nd_opt_adv_interval_type
90 #define nd_opt_ai_len nd_opt_adv_interval_len
91 #define nd_opt_ai_reserved nd_opt_adv_interval_reserved
92 #define nd_opt_ai_interval nd_opt_adv_interval_ival
96 #ifndef HAVE_STRUCT_ND_OPT_HOMEAGENT_INFO
97 struct nd_opt_homeagent_info
{ /* Home Agent info */
98 uint8_t nd_opt_hai_type
;
99 uint8_t nd_opt_hai_len
;
100 uint16_t nd_opt_hai_reserved
;
101 uint16_t nd_opt_hai_preference
;
102 uint16_t nd_opt_hai_lifetime
;
103 } __attribute__((__packed__
));
107 #define ND_OPT_RDNSS 25
110 #define ND_OPT_DNSSL 31
113 #ifndef HAVE_STRUCT_ND_OPT_RDNSS
114 struct nd_opt_rdnss
{ /* Recursive DNS server option [RFC8106 5.1] */
115 uint8_t nd_opt_rdnss_type
;
116 uint8_t nd_opt_rdnss_len
;
117 uint16_t nd_opt_rdnss_reserved
;
118 uint32_t nd_opt_rdnss_lifetime
;
119 /* Followed by one or more IPv6 addresses */
120 } __attribute__((__packed__
));
123 #ifndef HAVE_STRUCT_ND_OPT_DNSSL
124 struct nd_opt_dnssl
{ /* DNS search list option [RFC8106 5.2] */
125 uint8_t nd_opt_dnssl_type
;
126 uint8_t nd_opt_dnssl_len
;
127 uint16_t nd_opt_dnssl_reserved
;
128 uint32_t nd_opt_dnssl_lifetime
;
130 * Followed by one or more domain names encoded as in [RFC1035 3.1].
131 * Multiple domain names are concatenated after encoding. In any case,
132 * the result is zero-padded to a multiple of 8 octets.
134 } __attribute__((__packed__
));
137 #endif /* HAVE_RTADV */
140 * ipv6 nd prefixes can be manually defined, derived from the kernel interface
141 * configs or both. If both, manual flag/timer settings are used.
143 enum ipv6_nd_prefix_source
{
153 } ipv6_nd_suppress_ra_status
;
155 extern void rtadv_init(struct zebra_vrf
*zvrf
);
156 extern void rtadv_terminate(struct zebra_vrf
*zvrf
);
157 extern void rtadv_stop_ra(struct interface
*ifp
);
158 extern void rtadv_stop_ra_all(void);
159 extern void rtadv_cmd_init(void);
160 extern void zebra_interface_radv_disable(ZAPI_HANDLER_ARGS
);
161 extern void zebra_interface_radv_enable(ZAPI_HANDLER_ARGS
);
162 extern void rtadv_add_prefix(struct zebra_if
*zif
, const struct prefix_ipv6
*p
);
163 extern void rtadv_delete_prefix(struct zebra_if
*zif
, const struct prefix
*p
);
169 #endif /* _ZEBRA_RTADV_H */