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b612050594
Signed-off-by: Daniel Walton <dwalton@cumulusnetworks.com> Reviewed-by: Donald Sharp <sharpd@cumulusnetworks.com> Ticket: CM-7932
241 lines
7.6 KiB
C
241 lines
7.6 KiB
C
/* Interface function header.
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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_INTERFACE_H
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#define _ZEBRA_INTERFACE_H
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#include "redistribute.h"
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#ifdef HAVE_IRDP
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#include "zebra/irdp.h"
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#endif
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/* For interface multicast configuration. */
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#define IF_ZEBRA_MULTICAST_UNSPEC 0
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#define IF_ZEBRA_MULTICAST_ON 1
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#define IF_ZEBRA_MULTICAST_OFF 2
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/* For interface shutdown configuration. */
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#define IF_ZEBRA_SHUTDOWN_OFF 0
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#define IF_ZEBRA_SHUTDOWN_ON 1
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#if defined (HAVE_RTADV)
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/* Router advertisement parameter. From RFC4861, RFC6275 and RFC4191. */
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struct rtadvconf
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{
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/* A flag indicating whether or not the router sends periodic Router
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Advertisements and responds to Router Solicitations.
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Default: FALSE */
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int AdvSendAdvertisements;
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/* The maximum time allowed between sending unsolicited multicast
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Router Advertisements from the interface, in milliseconds.
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MUST be no less than 70 ms [RFC6275 7.5] and no greater
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than 1800000 ms [RFC4861 6.2.1].
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Default: 600000 milliseconds */
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int MaxRtrAdvInterval;
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#define RTADV_MAX_RTR_ADV_INTERVAL 600000
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/* The minimum time allowed between sending unsolicited multicast
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Router Advertisements from the interface, in milliseconds.
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MUST be no less than 30 ms [RFC6275 7.5].
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MUST be no greater than .75 * MaxRtrAdvInterval.
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Default: 0.33 * MaxRtrAdvInterval */
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int MinRtrAdvInterval; /* This field is currently unused. */
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#define RTADV_MIN_RTR_ADV_INTERVAL (0.33 * RTADV_MAX_RTR_ADV_INTERVAL)
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/* Unsolicited Router Advertisements' interval timer. */
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int AdvIntervalTimer;
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/* The TRUE/FALSE value to be placed in the "Managed address
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configuration" flag field in the Router Advertisement. See
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[ADDRCONF].
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Default: FALSE */
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int AdvManagedFlag;
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/* The TRUE/FALSE value to be placed in the "Other stateful
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configuration" flag field in the Router Advertisement. See
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[ADDRCONF].
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Default: FALSE */
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int AdvOtherConfigFlag;
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/* The value to be placed in MTU options sent by the router. A
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value of zero indicates that no MTU options are sent.
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Default: 0 */
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int AdvLinkMTU;
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/* The value to be placed in the Reachable Time field in the Router
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Advertisement messages sent by the router. The value zero means
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unspecified (by this router). MUST be no greater than 3,600,000
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milliseconds (1 hour).
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Default: 0 */
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u_int32_t AdvReachableTime;
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#define RTADV_MAX_REACHABLE_TIME 3600000
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/* The value to be placed in the Retrans Timer field in the Router
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Advertisement messages sent by the router. The value zero means
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unspecified (by this router).
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Default: 0 */
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int AdvRetransTimer;
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/* The default value to be placed in the Cur Hop Limit field in the
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Router Advertisement messages sent by the router. The value
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should be set to that current diameter of the Internet. The
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value zero means unspecified (by this router).
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Default: The value specified in the "Assigned Numbers" RFC
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[ASSIGNED] that was in effect at the time of implementation. */
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int AdvCurHopLimit;
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/* The value to be placed in the Router Lifetime field of Router
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Advertisements sent from the interface, in seconds. MUST be
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either zero or between MaxRtrAdvInterval and 9000 seconds. A
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value of zero indicates that the router is not to be used as a
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default router.
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Default: 3 * MaxRtrAdvInterval */
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int AdvDefaultLifetime;
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#define RTADV_MAX_RTRLIFETIME 9000 /* 2.5 hours */
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/* A list of prefixes to be placed in Prefix Information options in
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Router Advertisement messages sent from the interface.
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Default: all prefixes that the router advertises via routing
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protocols as being on-link for the interface from which the
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advertisement is sent. The link-local prefix SHOULD NOT be
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included in the list of advertised prefixes. */
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struct list *AdvPrefixList;
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/* The TRUE/FALSE value to be placed in the "Home agent"
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flag field in the Router Advertisement. See [RFC6275 7.1].
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Default: FALSE */
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int AdvHomeAgentFlag;
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#ifndef ND_RA_FLAG_HOME_AGENT
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#define ND_RA_FLAG_HOME_AGENT 0x20
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#endif
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/* The value to be placed in Home Agent Information option if Home
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Flag is set.
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Default: 0 */
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int HomeAgentPreference;
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/* The value to be placed in Home Agent Information option if Home
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Flag is set. Lifetime (seconds) MUST not be greater than 18.2
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hours.
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The value 0 has special meaning: use of AdvDefaultLifetime value.
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Default: 0 */
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int HomeAgentLifetime;
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#define RTADV_MAX_HALIFETIME 65520 /* 18.2 hours */
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/* The TRUE/FALSE value to insert or not an Advertisement Interval
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option. See [RFC 6275 7.3]
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Default: FALSE */
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int AdvIntervalOption;
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/* The value to be placed in the Default Router Preference field of
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a router advertisement. See [RFC 4191 2.1 & 2.2]
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Default: 0 (medium) */
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int DefaultPreference;
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#define RTADV_PREF_MEDIUM 0x0 /* Per RFC4191. */
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};
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#endif /* HAVE_RTADV */
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/* `zebra' daemon local interface structure. */
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struct zebra_if
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{
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/* Shutdown configuration. */
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u_char shutdown;
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/* Multicast configuration. */
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u_char multicast;
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/* Router advertise configuration. */
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u_char rtadv_enable;
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/* Installed addresses chains tree. */
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struct route_table *ipv4_subnets;
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#if defined(HAVE_RTADV)
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struct rtadvconf rtadv;
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#endif /* HAVE_RTADV */
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#ifdef HAVE_IRDP
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struct irdp_interface irdp;
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#endif
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#ifdef SUNOS_5
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/* the real IFF_UP state of the primary interface.
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* need this to differentiate between all interfaces being
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* down (but primary still plumbed) and primary having gone
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* ~IFF_UP, and all addresses gone.
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*/
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u_char primary_state;
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#endif /* SUNOS_5 */
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};
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extern void if_nbr_ipv6ll_to_ipv4ll_neigh_update (struct interface *ifp,
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struct in6_addr *address, int add);
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extern void if_nbr_ipv6ll_to_ipv4ll_neigh_del_all (struct interface *ifp);
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extern void if_delete_update (struct interface *ifp);
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extern void if_add_update (struct interface *ifp);
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extern void if_up (struct interface *);
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extern void if_down (struct interface *);
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extern void if_refresh (struct interface *);
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extern void if_flags_update (struct interface *, uint64_t);
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extern int if_subnet_add (struct interface *, struct connected *);
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extern int if_subnet_delete (struct interface *, struct connected *);
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extern int ipv6_address_configured (struct interface *ifp);
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#ifdef HAVE_PROC_NET_DEV
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extern void ifstat_update_proc (void);
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#endif /* HAVE_PROC_NET_DEV */
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#ifdef HAVE_NET_RT_IFLIST
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extern void ifstat_update_sysctl (void);
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#endif /* HAVE_NET_RT_IFLIST */
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#ifdef HAVE_PROC_NET_DEV
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extern int interface_list_proc (void);
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#endif /* HAVE_PROC_NET_DEV */
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#ifdef HAVE_PROC_NET_IF_INET6
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extern int ifaddr_proc_ipv6 (void);
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#endif /* HAVE_PROC_NET_IF_INET6 */
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#ifdef BSDI
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extern int if_kvm_get_mtu (struct interface *);
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#endif /* BSDI */
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#endif /* _ZEBRA_INTERFACE_H */
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