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When enabling IPv6 Router Advertisements automatically based on the presence of IPv6 address on an interface, do it only for relevant interfaces. Note: This needs a configure option for completion. Ticket: CM-9358 Reviewed By: CCR-4116 Testing Done: Manual verification
130 lines
3.8 KiB
C
130 lines
3.8 KiB
C
/* Router advertisement
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* Copyright (C) 2005 6WIND <jean-mickael.guerin@6wind.com>
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* Copyright (C) 1999 Kunihiro Ishiguro
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*
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* This file is part of GNU Zebra.
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*
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* GNU Zebra is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* GNU Zebra is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU Zebra; see the file COPYING. If not, write to the Free
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* Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*/
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#ifndef _ZEBRA_RTADV_H
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#define _ZEBRA_RTADV_H
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#include "vty.h"
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#include "zebra/interface.h"
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/* NB: RTADV is defined in zebra/interface.h above */
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#if defined (HAVE_RTADV)
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/* Router advertisement prefix. */
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struct rtadv_prefix
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{
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/* Prefix to be advertised. */
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struct prefix_ipv6 prefix;
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/* The value to be placed in the Valid Lifetime in the Prefix */
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u_int32_t AdvValidLifetime;
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#define RTADV_VALID_LIFETIME 2592000
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/* The value to be placed in the on-link flag */
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int AdvOnLinkFlag;
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/* The value to be placed in the Preferred Lifetime in the Prefix
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Information option, in seconds.*/
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u_int32_t AdvPreferredLifetime;
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#define RTADV_PREFERRED_LIFETIME 604800
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/* The value to be placed in the Autonomous Flag. */
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int AdvAutonomousFlag;
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/* The value to be placed in the Router Address Flag [RFC6275 7.2]. */
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int AdvRouterAddressFlag;
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#ifndef ND_OPT_PI_FLAG_RADDR
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#define ND_OPT_PI_FLAG_RADDR 0x20
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#endif
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};
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extern void rtadv_config_write (struct vty *, struct interface *);
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/* RFC4584 Extension to Sockets API for Mobile IPv6 */
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#ifndef ND_OPT_ADV_INTERVAL
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#define ND_OPT_ADV_INTERVAL 7 /* Adv Interval Option */
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#endif
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#ifndef ND_OPT_HA_INFORMATION
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#define ND_OPT_HA_INFORMATION 8 /* HA Information Option */
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#endif
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#ifndef HAVE_STRUCT_ND_OPT_ADV_INTERVAL
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struct nd_opt_adv_interval { /* Advertisement interval option */
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uint8_t nd_opt_ai_type;
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uint8_t nd_opt_ai_len;
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uint16_t nd_opt_ai_reserved;
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uint32_t nd_opt_ai_interval;
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} __attribute__((__packed__));
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#else
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#ifndef HAVE_STRUCT_ND_OPT_ADV_INTERVAL_ND_OPT_AI_TYPE
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/* fields may have to be renamed */
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#define nd_opt_ai_type nd_opt_adv_interval_type
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#define nd_opt_ai_len nd_opt_adv_interval_len
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#define nd_opt_ai_reserved nd_opt_adv_interval_reserved
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#define nd_opt_ai_interval nd_opt_adv_interval_ival
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#endif
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#endif
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#ifndef HAVE_STRUCT_ND_OPT_HOMEAGENT_INFO
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struct nd_opt_homeagent_info { /* Home Agent info */
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u_int8_t nd_opt_hai_type;
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u_int8_t nd_opt_hai_len;
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u_int16_t nd_opt_hai_reserved;
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u_int16_t nd_opt_hai_preference;
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u_int16_t nd_opt_hai_lifetime;
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} __attribute__((__packed__));
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#endif
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extern const char *rtadv_pref_strs[];
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#endif /* HAVE_RTADV */
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typedef enum {
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RA_ENABLE = 0,
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RA_SUPPRESS,
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} ipv6_nd_suppress_ra_status;
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extern void rtadv_init (struct zebra_vrf *);
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extern void rtadv_terminate (struct zebra_vrf *);
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extern void rtadv_cmd_init (void);
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extern void ipv6_nd_suppress_ra_set (struct interface *ifp, ipv6_nd_suppress_ra_status status);
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/* Can we turn on IPv6 RAs automatically on this interface? */
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static inline int
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interface_ipv6_auto_ra_allowed (struct interface *ifp)
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{
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#if defined (HAVE_RTADV)
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if ((strncmp (ifp->name, "eth", strlen("eth")) == 0) ||
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(strncmp (ifp->name, "lo", strlen("lo")) == 0) ||
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(strncmp (ifp->name, "switch", strlen("switch")) == 0))
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return 0;
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return 1;
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#else
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return 0;
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#endif
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}
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#endif /* _ZEBRA_RTADV_H */
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