[mirror_frr.git] / zebra / interface.h


/* Interface function header.
 * Copyright (C) 1999 Kunihiro Ishiguro
 *
 * This file is part of GNU Zebra.
 *
 * GNU Zebra is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2, or (at your option) any
 * later version.
 *
 * GNU Zebra is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; see the file COPYING; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */

#ifndef _ZEBRA_INTERFACE_H
#define _ZEBRA_INTERFACE_H

#include "redistribute.h"
#include "vrf.h"
#include "hook.h"

#include "zebra/zebra_l2.h"
#include "zebra/zebra_nhg_private.h"

#ifdef __cplusplus
extern "C" {
#endif

/* For interface multicast configuration. */
#define IF_ZEBRA_MULTICAST_UNSPEC 0
#define IF_ZEBRA_MULTICAST_ON     1
#define IF_ZEBRA_MULTICAST_OFF    2

/* For interface shutdown configuration. */
#define IF_ZEBRA_SHUTDOWN_OFF    0
#define IF_ZEBRA_SHUTDOWN_ON     1

#if defined(HAVE_RTADV)
/* Router advertisement parameter.  From RFC4861, RFC6275 and RFC4191. */
struct rtadvconf {
	/* A flag indicating whether or not the router sends periodic Router
	   Advertisements and responds to Router Solicitations.
	   Default: false */
	int AdvSendAdvertisements;

	/* The maximum time allowed between sending unsolicited multicast
	   Router Advertisements from the interface, in milliseconds.
	   MUST be no less than 70 ms [RFC6275 7.5] and no greater
	   than 1800000 ms [RFC4861 6.2.1].

	   Default: 600000 milliseconds */
	int MaxRtrAdvInterval;
#define RTADV_MAX_RTR_ADV_INTERVAL 600000

	/* The minimum time allowed between sending unsolicited multicast
	   Router Advertisements from the interface, in milliseconds.
	   MUST be no less than 30 ms [RFC6275 7.5].
	   MUST be no greater than .75 * MaxRtrAdvInterval.

	   Default: 0.33 * MaxRtrAdvInterval */
	int MinRtrAdvInterval; /* This field is currently unused. */
#define RTADV_MIN_RTR_ADV_INTERVAL (0.33 * RTADV_MAX_RTR_ADV_INTERVAL)

	/* Unsolicited Router Advertisements' interval timer. */
	int AdvIntervalTimer;

	/* The true/false value to be placed in the "Managed address
	   configuration" flag field in the Router Advertisement.  See
	   [ADDRCONF].

	   Default: false */
	int AdvManagedFlag;


	/* The true/false value to be placed in the "Other stateful
	   configuration" flag field in the Router Advertisement.  See
	   [ADDRCONF].

	   Default: false */
	int AdvOtherConfigFlag;

	/* The value to be placed in MTU options sent by the router.  A
	   value of zero indicates that no MTU options are sent.

	   Default: 0 */
	int AdvLinkMTU;


	/* The value to be placed in the Reachable Time field in the Router
	   Advertisement messages sent by the router.  The value zero means
	   unspecified (by this router).  MUST be no greater than 3,600,000
	   milliseconds (1 hour).

	   Default: 0 */
	uint32_t AdvReachableTime;
#define RTADV_MAX_REACHABLE_TIME 3600000

	/* The value to be placed in the Retrans Timer field in the Router
	   Advertisement messages sent by the router.  The value zero means
	   unspecified (by this router).

	   Default: 0 */
	int AdvRetransTimer;

	/* The default value to be placed in the Cur Hop Limit field in the
	   Router Advertisement messages sent by the router.  The value
	   should be set to that current diameter of the Internet.  The
	   value zero means unspecified (by this router).

	   Default: The value specified in the "Assigned Numbers" RFC
	   [ASSIGNED] that was in effect at the time of implementation. */
	int AdvCurHopLimit;

	/* The value to be placed in the Router Lifetime field of Router
	   Advertisements sent from the interface, in seconds.  MUST be
	   either zero or between MaxRtrAdvInterval and 9000 seconds.  A
	   value of zero indicates that the router is not to be used as a
	   default router.

	   Default: 3 * MaxRtrAdvInterval */
	int AdvDefaultLifetime;
#define RTADV_MAX_RTRLIFETIME 9000 /* 2.5 hours */

	/* A list of prefixes to be placed in Prefix Information options in
	   Router Advertisement messages sent from the interface.

	   Default: all prefixes that the router advertises via routing
	   protocols as being on-link for the interface from which the
	   advertisement is sent. The link-local prefix SHOULD NOT be
	   included in the list of advertised prefixes. */
	struct list *AdvPrefixList;

	/* The true/false value to be placed in the "Home agent"
	   flag field in the Router Advertisement.  See [RFC6275 7.1].

	   Default: false */
	int AdvHomeAgentFlag;
#ifndef ND_RA_FLAG_HOME_AGENT
#define ND_RA_FLAG_HOME_AGENT 	0x20
#endif

	/* The value to be placed in Home Agent Information option if Home
	   Flag is set.
	   Default: 0 */
	int HomeAgentPreference;

	/* The value to be placed in Home Agent Information option if Home
	   Flag is set. Lifetime (seconds) MUST not be greater than 18.2
	   hours.
	   The value 0 has special meaning: use of AdvDefaultLifetime value.

	   Default: 0 */
	int HomeAgentLifetime;
#define RTADV_MAX_HALIFETIME 65520 /* 18.2 hours */

	/* The true/false value to insert or not an Advertisement Interval
	   option. See [RFC 6275 7.3]

	   Default: false */
	int AdvIntervalOption;

	/* The value to be placed in the Default Router Preference field of
	   a router advertisement. See [RFC 4191 2.1 & 2.2]

	   Default: 0 (medium) */
	int DefaultPreference;
#define RTADV_PREF_MEDIUM 0x0 /* Per RFC4191. */

	/*
	 * List of recursive DNS servers to include in the RDNSS option.
	 * See [RFC8106 5.1]
	 *
	 * Default: empty list; do not emit RDNSS option
	 */
	struct list *AdvRDNSSList;

	/*
	 * List of DNS search domains to include in the DNSSL option.
	 * See [RFC8106 5.2]
	 *
	 * Default: empty list; do not emit DNSSL option
	 */
	struct list *AdvDNSSLList;

	uint8_t inFastRexmit; /* True if we're rexmits faster than usual */

	/* Track if RA was configured by BGP or by the Operator or both */
	uint8_t ra_configured;    /* Was RA configured? */
#define BGP_RA_CONFIGURED (1<<0)  /* BGP configured RA? */
#define VTY_RA_CONFIGURED (1<<1)  /* Operator configured RA? */
#define VTY_RA_INTERVAL_CONFIGURED (1<<2)  /* Operator configured RA interval */
	int NumFastReXmitsRemain; /* Loaded first with number of fast
				     rexmits to do */

#define RTADV_FAST_REXMIT_PERIOD 1 /* 1 sec */
#define RTADV_NUM_FAST_REXMITS   4 /* Fast Rexmit RA 4 times on certain events */
};

struct rtadv_rdnss {
	/* Address of recursive DNS server to advertise */
	struct in6_addr addr;

	/*
	 * Lifetime in seconds; all-ones means infinity, zero
	 * stop using it.
	 */
	uint32_t lifetime;

	/* If lifetime not set, use a default of 3*MaxRtrAdvInterval */
	int lifetime_set;
};

/*
 * [RFC1035 2.3.4] sets the maximum length of a domain name (a sequence of
 * labels, each prefixed by a length octet) at 255 octets.
 */
#define RTADV_MAX_ENCODED_DOMAIN_NAME 255

struct rtadv_dnssl {
	/* Domain name without trailing root zone dot (NUL-terminated) */
	char name[RTADV_MAX_ENCODED_DOMAIN_NAME - 1];

	/* Name encoded as in [RFC1035 3.1] */
	uint8_t encoded_name[RTADV_MAX_ENCODED_DOMAIN_NAME];

	/* Actual length of encoded_name */
	size_t encoded_len;

	/* Lifetime as for RDNSS */
	uint32_t lifetime;
	int lifetime_set;
};

#endif /* HAVE_RTADV */

/* Zebra interface type - ones of interest. */
typedef enum {
	ZEBRA_IF_OTHER = 0, /* Anything else */
	ZEBRA_IF_VXLAN,     /* VxLAN interface */
	ZEBRA_IF_VRF,       /* VRF device */
	ZEBRA_IF_BRIDGE,    /* bridge device */
	ZEBRA_IF_VLAN,      /* VLAN sub-interface */
	ZEBRA_IF_MACVLAN,   /* MAC VLAN interface*/
	ZEBRA_IF_VETH,      /* VETH interface*/
	ZEBRA_IF_BOND,	    /* Bond */
	ZEBRA_IF_BOND_SLAVE,	    /* Bond */
} zebra_iftype_t;

/* Zebra "slave" interface type */
typedef enum {
	ZEBRA_IF_SLAVE_NONE,   /* Not a slave */
	ZEBRA_IF_SLAVE_VRF,    /* Member of a VRF */
	ZEBRA_IF_SLAVE_BRIDGE, /* Member of a bridge */
	ZEBRA_IF_SLAVE_BOND,   /* Bond member */
	ZEBRA_IF_SLAVE_OTHER,  /* Something else - e.g., bond slave */
} zebra_slave_iftype_t;

struct irdp_interface;

/* `zebra' daemon local interface structure. */
struct zebra_if {
	/* Shutdown configuration. */
	uint8_t shutdown;

	/* Multicast configuration. */
	uint8_t multicast;

	/* Router advertise configuration. */
	uint8_t rtadv_enable;

	/* Installed addresses chains tree. */
	struct route_table *ipv4_subnets;

	/* Nexthops pointing to this interface */
	/**
	 * Any nexthop that we get should have an
	 * interface. When an interface goes down,
	 * we will use this list to update the nexthops
	 * pointing to it with that info.
	 */
	struct nhg_connected_tree_head nhg_dependents;

	/* Information about up/down changes */
	unsigned int up_count;
	char up_last[QUAGGA_TIMESTAMP_LEN];
	unsigned int down_count;
	char down_last[QUAGGA_TIMESTAMP_LEN];

#if defined(HAVE_RTADV)
	struct rtadvconf rtadv;
	unsigned int ra_sent, ra_rcvd;
#endif /* HAVE_RTADV */

	struct irdp_interface *irdp;

#ifdef HAVE_STRUCT_SOCKADDR_DL
	union {
		/* note that sdl_storage is never accessed, it only exists to
		 * make space.
		 * all actual uses refer to sdl - but use sizeof(sdl_storage)!
		 * this fits
		 * best with C aliasing rules. */
		struct sockaddr_dl sdl;
		struct sockaddr_storage sdl_storage;
	};
#endif

#ifdef SUNOS_5
	/* the real IFF_UP state of the primary interface.
	 * need this to differentiate between all interfaces being
	 * down (but primary still plumbed) and primary having gone
	 * ~IFF_UP, and all addresses gone.
	 */
	uint8_t primary_state;
#endif /* SUNOS_5 */

	/* ptm enable configuration */
	uint8_t ptm_enable;

	/* Zebra interface and "slave" interface type */
	zebra_iftype_t zif_type;
	zebra_slave_iftype_t zif_slave_type;

	/* Additional L2 info, depends on zif_type */
	union zebra_l2if_info l2info;

	/* For members of a bridge, link to bridge. */
	/* Note: If additional fields become necessary, this can be modified to
	 * be a pointer to a dynamically allocd struct.
	 */
	struct zebra_l2info_brslave brslave_info;

	struct zebra_l2info_bondslave bondslave_info;

	/* Link fields - for sub-interfaces. */
	ifindex_t link_ifindex;
	struct interface *link;

	struct thread *speed_update;

	/*
	 * Does this interface have a v6 to v4 ll neighbor entry
	 * for bgp unnumbered?
	 */
	bool v6_2_v4_ll_neigh_entry;
	char neigh_mac[6];
	struct in6_addr v6_2_v4_ll_addr6;

	/* The description of the interface */
	char *desc;
};

DECLARE_HOOK(zebra_if_extra_info, (struct vty * vty, struct interface *ifp),
	     (vty, ifp))
DECLARE_HOOK(zebra_if_config_wr, (struct vty * vty, struct interface *ifp),
	     (vty, ifp))

static inline void zebra_if_set_ziftype(struct interface *ifp,
					zebra_iftype_t zif_type,
					zebra_slave_iftype_t zif_slave_type)
{
	struct zebra_if *zif;

	zif = (struct zebra_if *)ifp->info;
	zif->zif_type = zif_type;
	zif->zif_slave_type = zif_slave_type;
}

#define IS_ZEBRA_IF_VRF(ifp)                                                   \
	(((struct zebra_if *)(ifp->info))->zif_type == ZEBRA_IF_VRF)

#define IS_ZEBRA_IF_BRIDGE(ifp)                                                \
	(((struct zebra_if *)(ifp->info))->zif_type == ZEBRA_IF_BRIDGE)

#define IS_ZEBRA_IF_VLAN(ifp)                                                  \
	(((struct zebra_if *)(ifp->info))->zif_type == ZEBRA_IF_VLAN)

#define IS_ZEBRA_IF_VXLAN(ifp)                                                 \
	(((struct zebra_if *)(ifp->info))->zif_type == ZEBRA_IF_VXLAN)

#define IS_ZEBRA_IF_MACVLAN(ifp)                                               \
	(((struct zebra_if *)(ifp->info))->zif_type == ZEBRA_IF_MACVLAN)

#define IS_ZEBRA_IF_VETH(ifp)                                               \
	(((struct zebra_if *)(ifp->info))->zif_type == ZEBRA_IF_VETH)

#define IS_ZEBRA_IF_BRIDGE_SLAVE(ifp)					\
	(((struct zebra_if *)(ifp->info))->zif_slave_type                      \
	 == ZEBRA_IF_SLAVE_BRIDGE)

#define IS_ZEBRA_IF_VRF_SLAVE(ifp)                                             \
	(((struct zebra_if *)(ifp->info))->zif_slave_type == ZEBRA_IF_SLAVE_VRF)

#define IS_ZEBRA_IF_BOND_SLAVE(ifp)					\
	(((struct zebra_if *)(ifp->info))->zif_slave_type                      \
	 == ZEBRA_IF_SLAVE_BOND)

extern void zebra_if_init(void);

extern struct interface *if_lookup_by_index_per_ns(struct zebra_ns *, uint32_t);
extern struct interface *if_lookup_by_name_per_ns(struct zebra_ns *,
						  const char *);
extern struct interface *if_link_per_ns(struct zebra_ns *, struct interface *);
extern const char *ifindex2ifname_per_ns(struct zebra_ns *, unsigned int);

extern void if_unlink_per_ns(struct interface *);
extern void if_nbr_mac_to_ipv4ll_neigh_update(struct interface *fip,
					      char mac[6],
					      struct in6_addr *address,
					      int add);
extern void if_nbr_ipv6ll_to_ipv4ll_neigh_update(struct interface *ifp,
						 struct in6_addr *address,
						 int add);
extern void if_nbr_ipv6ll_to_ipv4ll_neigh_del_all(struct interface *ifp);
extern void if_delete_update(struct interface *ifp);
extern void if_add_update(struct interface *ifp);
extern void if_up(struct interface *);
extern void if_down(struct interface *);
extern void if_refresh(struct interface *);
extern void if_flags_update(struct interface *, uint64_t);
extern int if_subnet_add(struct interface *, struct connected *);
extern int if_subnet_delete(struct interface *, struct connected *);
extern int ipv6_address_configured(struct interface *ifp);
extern void if_handle_vrf_change(struct interface *ifp, vrf_id_t vrf_id);
extern void zebra_if_update_link(struct interface *ifp, ifindex_t link_ifindex,
				 ns_id_t ns_id);
extern void zebra_if_update_all_links(void);
extern void zebra_if_set_protodown(struct interface *ifp, bool down);

/* Nexthop group connected functions */
extern void if_nhg_dependents_add(struct interface *ifp,
				  struct nhg_hash_entry *nhe);
extern void if_nhg_dependents_del(struct interface *ifp,
				  struct nhg_hash_entry *nhe);
extern unsigned int if_nhg_dependents_count(const struct interface *ifp);
extern bool if_nhg_dependents_is_empty(const struct interface *ifp);

extern void vrf_add_update(struct vrf *vrfp);

#ifdef HAVE_PROC_NET_DEV
extern void ifstat_update_proc(void);
#endif /* HAVE_PROC_NET_DEV */
#ifdef HAVE_NET_RT_IFLIST
extern void ifstat_update_sysctl(void);

#endif /* HAVE_NET_RT_IFLIST */
#ifdef HAVE_PROC_NET_DEV
extern int interface_list_proc(void);
#endif /* HAVE_PROC_NET_DEV */
#ifdef HAVE_PROC_NET_IF_INET6
extern int ifaddr_proc_ipv6(void);
#endif /* HAVE_PROC_NET_IF_INET6 */

#ifdef __cplusplus
}
#endif

#endif /* _ZEBRA_INTERFACE_H */
Commit	Line	Data
b9368db9	1
718e3744	2	/* Interface function header.
	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	*
896014f4 DL	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	*/
718e3744	21
5b73a671	22	#ifndef _ZEBRA_INTERFACE_H
	23	#define _ZEBRA_INTERFACE_H
	24
	25	#include "redistribute.h"
12f6fb97	26	#include "vrf.h"
2eb27eec	27	#include "hook.h"
ca776988	28
6675513d	29	#include "zebra/zebra_l2.h"
5948f013	30	#include "zebra/zebra_nhg_private.h"
6675513d	31
51e94aa7 EDP	32	#ifdef __cplusplus
	33	extern "C" {
	34	#endif
	35
718e3744	36	/* For interface multicast configuration. */
	37	#define IF_ZEBRA_MULTICAST_UNSPEC 0
	38	#define IF_ZEBRA_MULTICAST_ON 1
	39	#define IF_ZEBRA_MULTICAST_OFF 2
	40
	41	/* For interface shutdown configuration. */
bfac8dcd	42	#define IF_ZEBRA_SHUTDOWN_OFF 0
718e3744	43	#define IF_ZEBRA_SHUTDOWN_ON 1
718e3744	44
d62a17ae	45	#if defined(HAVE_RTADV)
6eb0c5ab	46	/* Router advertisement parameter. From RFC4861, RFC6275 and RFC4191. */
d62a17ae	47	struct rtadvconf {
	48	/* A flag indicating whether or not the router sends periodic Router
	49	Advertisements and responds to Router Solicitations.
2951a7a4	50	Default: false */
d62a17ae	51	int AdvSendAdvertisements;
	52
	53	/* The maximum time allowed between sending unsolicited multicast
	54	Router Advertisements from the interface, in milliseconds.
	55	MUST be no less than 70 ms [RFC6275 7.5] and no greater
	56	than 1800000 ms [RFC4861 6.2.1].
	57
	58	Default: 600000 milliseconds */
	59	int MaxRtrAdvInterval;
7cee1bb1	60	#define RTADV_MAX_RTR_ADV_INTERVAL 600000
718e3744	61
d62a17ae	62	/* The minimum time allowed between sending unsolicited multicast
	63	Router Advertisements from the interface, in milliseconds.
	64	MUST be no less than 30 ms [RFC6275 7.5].
	65	MUST be no greater than .75 * MaxRtrAdvInterval.
718e3744	66
d62a17ae	67	Default: 0.33 * MaxRtrAdvInterval */
d62a17ae	68	int MinRtrAdvInterval; /* This field is currently unused. */
718e3744	69	#define RTADV_MIN_RTR_ADV_INTERVAL (0.33 * RTADV_MAX_RTR_ADV_INTERVAL)
718e3744	70
d62a17ae	71	/* Unsolicited Router Advertisements' interval timer. */
d62a17ae	72	int AdvIntervalTimer;
718e3744	73
2951a7a4	74	/* The true/false value to be placed in the "Managed address
d62a17ae	75	configuration" flag field in the Router Advertisement. See
d62a17ae	76	[ADDRCONF].
718e3744	77
2951a7a4	78	Default: false */
d62a17ae	79	int AdvManagedFlag;
718e3744	80
718e3744	81
2951a7a4	82	/* The true/false value to be placed in the "Other stateful
d62a17ae	83	configuration" flag field in the Router Advertisement. See
d62a17ae	84	[ADDRCONF].
718e3744	85
2951a7a4	86	Default: false */
d62a17ae	87	int AdvOtherConfigFlag;
718e3744	88
d62a17ae	89	/* The value to be placed in MTU options sent by the router. A
d62a17ae	90	value of zero indicates that no MTU options are sent.
718e3744	91
d62a17ae	92	Default: 0 */
d62a17ae	93	int AdvLinkMTU;
718e3744	94
718e3744	95
d62a17ae	96	/* The value to be placed in the Reachable Time field in the Router
	97	Advertisement messages sent by the router. The value zero means
	98	unspecified (by this router). MUST be no greater than 3,600,000
	99	milliseconds (1 hour).
718e3744	100
d62a17ae	101	Default: 0 */
d7c0a89a	102	uint32_t AdvReachableTime;
d62a17ae	103	#define RTADV_MAX_REACHABLE_TIME 3600000
718e3744	104
d62a17ae	105	/* The value to be placed in the Retrans Timer field in the Router
	106	Advertisement messages sent by the router. The value zero means
	107	unspecified (by this router).
718e3744	108
d62a17ae	109	Default: 0 */
d62a17ae	110	int AdvRetransTimer;
718e3744	111
d62a17ae	112	/* The default value to be placed in the Cur Hop Limit field in the
	113	Router Advertisement messages sent by the router. The value
	114	should be set to that current diameter of the Internet. The
	115	value zero means unspecified (by this router).
718e3744	116
d62a17ae	117	Default: The value specified in the "Assigned Numbers" RFC
	118	[ASSIGNED] that was in effect at the time of implementation. */
	119	int AdvCurHopLimit;
718e3744	120
d62a17ae	121	/* The value to be placed in the Router Lifetime field of Router
	122	Advertisements sent from the interface, in seconds. MUST be
	123	either zero or between MaxRtrAdvInterval and 9000 seconds. A
	124	value of zero indicates that the router is not to be used as a
	125	default router.
718e3744	126
d62a17ae	127	Default: 3 * MaxRtrAdvInterval */
d62a17ae	128	int AdvDefaultLifetime;
d660f698	129	#define RTADV_MAX_RTRLIFETIME 9000 /* 2.5 hours */
718e3744	130
d62a17ae	131	/* A list of prefixes to be placed in Prefix Information options in
d62a17ae	132	Router Advertisement messages sent from the interface.
718e3744	133
d62a17ae	134	Default: all prefixes that the router advertises via routing
	135	protocols as being on-link for the interface from which the
	136	advertisement is sent. The link-local prefix SHOULD NOT be
	137	included in the list of advertised prefixes. */
	138	struct list *AdvPrefixList;
7cee1bb1	139
2951a7a4	140	/* The true/false value to be placed in the "Home agent"
d62a17ae	141	flag field in the Router Advertisement. See [RFC6275 7.1].
7cee1bb1	142
2951a7a4	143	Default: false */
d62a17ae	144	int AdvHomeAgentFlag;
7cee1bb1	145	#ifndef ND_RA_FLAG_HOME_AGENT
	146	#define ND_RA_FLAG_HOME_AGENT 0x20
	147	#endif
	148
d62a17ae	149	/* The value to be placed in Home Agent Information option if Home
	150	Flag is set.
	151	Default: 0 */
	152	int HomeAgentPreference;
	153
	154	/* The value to be placed in Home Agent Information option if Home
	155	Flag is set. Lifetime (seconds) MUST not be greater than 18.2
	156	hours.
	157	The value 0 has special meaning: use of AdvDefaultLifetime value.
	158
	159	Default: 0 */
	160	int HomeAgentLifetime;
7cee1bb1	161	#define RTADV_MAX_HALIFETIME 65520 /* 18.2 hours */
7cee1bb1	162
2951a7a4	163	/* The true/false value to insert or not an Advertisement Interval
d62a17ae	164	option. See [RFC 6275 7.3]
7cee1bb1	165
2951a7a4	166	Default: false */
d62a17ae	167	int AdvIntervalOption;
b60668d0	168
d62a17ae	169	/* The value to be placed in the Default Router Preference field of
d62a17ae	170	a router advertisement. See [RFC 4191 2.1 & 2.2]
b60668d0	171
d62a17ae	172	Default: 0 (medium) */
d62a17ae	173	int DefaultPreference;
b60668d0	174	#define RTADV_PREF_MEDIUM 0x0 /* Per RFC4191. */
6c9678b4	175
3eb4fbb0 LS	176	/*
	177	* List of recursive DNS servers to include in the RDNSS option.
	178	* See [RFC8106 5.1]
	179	*
	180	* Default: empty list; do not emit RDNSS option
	181	*/
	182	struct list *AdvRDNSSList;
	183
	184	/*
	185	* List of DNS search domains to include in the DNSSL option.
	186	* See [RFC8106 5.2]
	187	*
	188	* Default: empty list; do not emit DNSSL option
	189	*/
	190	struct list *AdvDNSSLList;
	191
d7c0a89a	192	uint8_t inFastRexmit; /* True if we're rexmits faster than usual */
3ea48364 DS	193
3ea48364 DS	194	/* Track if RA was configured by BGP or by the Operator or both */
d7c0a89a	195	uint8_t ra_configured; /* Was RA configured? */
3ea48364 DS	196	#define BGP_RA_CONFIGURED (1<<0) /* BGP configured RA? */
	197	#define VTY_RA_CONFIGURED (1<<1) /* Operator configured RA? */
	198	#define VTY_RA_INTERVAL_CONFIGURED (1<<2) /* Operator configured RA interval */
996c9314 LB	199	int NumFastReXmitsRemain; /* Loaded first with number of fast
996c9314 LB	200	rexmits to do */
6c9678b4 DD	201
	202	#define RTADV_FAST_REXMIT_PERIOD 1 /* 1 sec */
	203	#define RTADV_NUM_FAST_REXMITS 4 /* Fast Rexmit RA 4 times on certain events */
718e3744	204	};
718e3744	205
3eb4fbb0 LS	206	struct rtadv_rdnss {
	207	/* Address of recursive DNS server to advertise */
	208	struct in6_addr addr;
	209
	210	/*
	211	* Lifetime in seconds; all-ones means infinity, zero
	212	* stop using it.
	213	*/
	214	uint32_t lifetime;
	215
	216	/* If lifetime not set, use a default of 3MaxRtrAdvInterval /
	217	int lifetime_set;
	218	};
	219
	220	/*
	221	* [RFC1035 2.3.4] sets the maximum length of a domain name (a sequence of
	222	* labels, each prefixed by a length octet) at 255 octets.
	223	*/
	224	#define RTADV_MAX_ENCODED_DOMAIN_NAME 255
	225
	226	struct rtadv_dnssl {
	227	/* Domain name without trailing root zone dot (NUL-terminated) */
	228	char name[RTADV_MAX_ENCODED_DOMAIN_NAME - 1];
	229
	230	/* Name encoded as in [RFC1035 3.1] */
	231	uint8_t encoded_name[RTADV_MAX_ENCODED_DOMAIN_NAME];
	232
	233	/* Actual length of encoded_name */
	234	size_t encoded_len;
	235
	236	/* Lifetime as for RDNSS */
	237	uint32_t lifetime;
	238	int lifetime_set;
	239	};
	240
8da4e946	241	#endif /* HAVE_RTADV */
718e3744	242
6675513d	243	/* Zebra interface type - ones of interest. */
d62a17ae	244	typedef enum {
7a38782a DL	245	ZEBRA_IF_OTHER = 0, /* Anything else */
	246	ZEBRA_IF_VXLAN, /* VxLAN interface */
	247	ZEBRA_IF_VRF, /* VRF device */
	248	ZEBRA_IF_BRIDGE, /* bridge device */
	249	ZEBRA_IF_VLAN, /* VLAN sub-interface */
	250	ZEBRA_IF_MACVLAN, /* MAC VLAN interface*/
0e4864ea	251	ZEBRA_IF_VETH, /* VETH interface*/
b9368db9 DD	252	ZEBRA_IF_BOND, /* Bond */
b9368db9 DD	253	ZEBRA_IF_BOND_SLAVE, /* Bond */
6675513d	254	} zebra_iftype_t;
	255
	256	/* Zebra "slave" interface type */
d62a17ae	257	typedef enum {
	258	ZEBRA_IF_SLAVE_NONE, /* Not a slave */
	259	ZEBRA_IF_SLAVE_VRF, /* Member of a VRF */
	260	ZEBRA_IF_SLAVE_BRIDGE, /* Member of a bridge */
b9368db9	261	ZEBRA_IF_SLAVE_BOND, /* Bond member */
d62a17ae	262	ZEBRA_IF_SLAVE_OTHER, /* Something else - e.g., bond slave */
6675513d	263	} zebra_slave_iftype_t;
6675513d	264
2eb27eec DL	265	struct irdp_interface;
2eb27eec DL	266
718e3744	267	/* `zebra' daemon local interface structure. */
d62a17ae	268	struct zebra_if {
d62a17ae	269	/* Shutdown configuration. */
d7c0a89a	270	uint8_t shutdown;
718e3744	271
d62a17ae	272	/* Multicast configuration. */
d7c0a89a	273	uint8_t multicast;
718e3744	274
d62a17ae	275	/* Router advertise configuration. */
d7c0a89a	276	uint8_t rtadv_enable;
718e3744	277
d62a17ae	278	/* Installed addresses chains tree. */
d62a17ae	279	struct route_table *ipv4_subnets;
eef1fe11	280
fe593b78	281	/* Nexthops pointing to this interface */
602fea61 SW	282	/**
	283	* Any nexthop that we get should have an
	284	* interface. When an interface goes down,
	285	* we will use this list to update the nexthops
	286	* pointing to it with that info.
	287	*/
37c6708b	288	struct nhg_connected_tree_head nhg_dependents;
602fea61	289
d62a17ae	290	/* Information about up/down changes */
	291	unsigned int up_count;
	292	char up_last[QUAGGA_TIMESTAMP_LEN];
	293	unsigned int down_count;
	294	char down_last[QUAGGA_TIMESTAMP_LEN];
55ce4d3a	295
8da4e946	296	#if defined(HAVE_RTADV)
d62a17ae	297	struct rtadvconf rtadv;
d62a17ae	298	unsigned int ra_sent, ra_rcvd;
8da4e946	299	#endif /* HAVE_RTADV */
ca776988	300
2eb27eec	301	struct irdp_interface *irdp;
ca776988	302
8ccc7e80	303	#ifdef HAVE_STRUCT_SOCKADDR_DL
d62a17ae	304	union {
	305	/* note that sdl_storage is never accessed, it only exists to
	306	* make space.
	307	* all actual uses refer to sdl - but use sizeof(sdl_storage)!
	308	* this fits
	309	* best with C aliasing rules. */
	310	struct sockaddr_dl sdl;
	311	struct sockaddr_storage sdl_storage;
	312	};
8ccc7e80 TT	313	#endif
8ccc7e80 TT	314
5c78b3d0	315	#ifdef SUNOS_5
d62a17ae	316	/* the real IFF_UP state of the primary interface.
	317	* need this to differentiate between all interfaces being
	318	* down (but primary still plumbed) and primary having gone
	319	* ~IFF_UP, and all addresses gone.
	320	*/
d7c0a89a	321	uint8_t primary_state;
5c78b3d0	322	#endif /* SUNOS_5 */
986aa00f	323
d62a17ae	324	/* ptm enable configuration */
d7c0a89a	325	uint8_t ptm_enable;
6675513d	326
d62a17ae	327	/* Zebra interface and "slave" interface type */
	328	zebra_iftype_t zif_type;
	329	zebra_slave_iftype_t zif_slave_type;
6675513d	330
d62a17ae	331	/* Additional L2 info, depends on zif_type */
d62a17ae	332	union zebra_l2if_info l2info;
6675513d	333
d62a17ae	334	/* For members of a bridge, link to bridge. */
	335	/* Note: If additional fields become necessary, this can be modified to
	336	* be a pointer to a dynamically allocd struct.
	337	*/
	338	struct zebra_l2info_brslave brslave_info;
6675513d	339
b9368db9 DD	340	struct zebra_l2info_bondslave bondslave_info;
b9368db9 DD	341
d62a17ae	342	/* Link fields - for sub-interfaces. */
	343	ifindex_t link_ifindex;
	344	struct interface *link;
dc7b3cae DS	345
dc7b3cae DS	346	struct thread *speed_update;
20089ae2 DS	347
	348	/*
	349	* Does this interface have a v6 to v4 ll neighbor entry
	350	* for bgp unnumbered?
	351	*/
	352	bool v6_2_v4_ll_neigh_entry;
ee98d1f1	353	char neigh_mac[6];
20089ae2	354	struct in6_addr v6_2_v4_ll_addr6;
ba5165ec DS	355
	356	/* The description of the interface */
	357	char *desc;
718e3744	358	};
718e3744	359
996c9314 LB	360	DECLARE_HOOK(zebra_if_extra_info, (struct vty * vty, struct interface *ifp),
	361	(vty, ifp))
	362	DECLARE_HOOK(zebra_if_config_wr, (struct vty * vty, struct interface *ifp),
	363	(vty, ifp))
2eb27eec	364
d62a17ae	365	static inline void zebra_if_set_ziftype(struct interface *ifp,
	366	zebra_iftype_t zif_type,
	367	zebra_slave_iftype_t zif_slave_type)
6675513d	368	{
d62a17ae	369	struct zebra_if *zif;
6675513d	370
d62a17ae	371	zif = (struct zebra_if *)ifp->info;
	372	zif->zif_type = zif_type;
	373	zif->zif_slave_type = zif_slave_type;
6675513d	374	}
6675513d	375
d62a17ae	376	#define IS_ZEBRA_IF_VRF(ifp) \
	377	(((struct zebra_if *)(ifp->info))->zif_type == ZEBRA_IF_VRF)
	378
	379	#define IS_ZEBRA_IF_BRIDGE(ifp) \
	380	(((struct zebra_if *)(ifp->info))->zif_type == ZEBRA_IF_BRIDGE)
	381
	382	#define IS_ZEBRA_IF_VLAN(ifp) \
	383	(((struct zebra_if *)(ifp->info))->zif_type == ZEBRA_IF_VLAN)
	384
	385	#define IS_ZEBRA_IF_VXLAN(ifp) \
	386	(((struct zebra_if *)(ifp->info))->zif_type == ZEBRA_IF_VXLAN)
	387
1a98c087 MK	388	#define IS_ZEBRA_IF_MACVLAN(ifp) \
	389	(((struct zebra_if *)(ifp->info))->zif_type == ZEBRA_IF_MACVLAN)
	390
0e4864ea PG	391	#define IS_ZEBRA_IF_VETH(ifp) \
	392	(((struct zebra_if *)(ifp->info))->zif_type == ZEBRA_IF_VETH)
	393
	394	#define IS_ZEBRA_IF_BRIDGE_SLAVE(ifp) \
d62a17ae	395	(((struct zebra_if *)(ifp->info))->zif_slave_type \
	396	== ZEBRA_IF_SLAVE_BRIDGE)
	397
	398	#define IS_ZEBRA_IF_VRF_SLAVE(ifp) \
	399	(((struct zebra_if *)(ifp->info))->zif_slave_type == ZEBRA_IF_SLAVE_VRF)
	400
b9368db9 DD	401	#define IS_ZEBRA_IF_BOND_SLAVE(ifp) \
	402	(((struct zebra_if *)(ifp->info))->zif_slave_type \
	403	== ZEBRA_IF_SLAVE_BOND)
	404
05f7f5db DS	405	extern void zebra_if_init(void);
05f7f5db DS	406
d7c0a89a	407	extern struct interface if_lookup_by_index_per_ns(struct zebra_ns , uint32_t);
d62a17ae	408	extern struct interface if_lookup_by_name_per_ns(struct zebra_ns ,
	409	const char *);
	410	extern struct interface if_link_per_ns(struct zebra_ns , struct interface *);
	411	extern const char ifindex2ifname_per_ns(struct zebra_ns , unsigned int);
	412
	413	extern void if_unlink_per_ns(struct interface *);
ee98d1f1 DS	414	extern void if_nbr_mac_to_ipv4ll_neigh_update(struct interface *fip,
	415	char mac[6],
	416	struct in6_addr *address,
	417	int add);
d62a17ae	418	extern void if_nbr_ipv6ll_to_ipv4ll_neigh_update(struct interface *ifp,
	419	struct in6_addr *address,
	420	int add);
	421	extern void if_nbr_ipv6ll_to_ipv4ll_neigh_del_all(struct interface *ifp);
	422	extern void if_delete_update(struct interface *ifp);
	423	extern void if_add_update(struct interface *ifp);
	424	extern void if_up(struct interface *);
	425	extern void if_down(struct interface *);
	426	extern void if_refresh(struct interface *);
	427	extern void if_flags_update(struct interface *, uint64_t);
	428	extern int if_subnet_add(struct interface , struct connected );
	429	extern int if_subnet_delete(struct interface , struct connected );
	430	extern int ipv6_address_configured(struct interface *ifp);
	431	extern void if_handle_vrf_change(struct interface *ifp, vrf_id_t vrf_id);
680c278f PG	432	extern void zebra_if_update_link(struct interface *ifp, ifindex_t link_ifindex,
680c278f PG	433	ns_id_t ns_id);
520ebf72	434	extern void zebra_if_update_all_links(void);
c3bd894e	435	extern void zebra_if_set_protodown(struct interface *ifp, bool down);
d62a17ae	436
fe593b78 SW	437	/* Nexthop group connected functions */
	438	extern void if_nhg_dependents_add(struct interface *ifp,
	439	struct nhg_hash_entry *nhe);
	440	extern void if_nhg_dependents_del(struct interface *ifp,
	441	struct nhg_hash_entry *nhe);
	442	extern unsigned int if_nhg_dependents_count(const struct interface *ifp);
	443	extern bool if_nhg_dependents_is_empty(const struct interface *ifp);
602fea61	444
d62a17ae	445	extern void vrf_add_update(struct vrf *vrfp);
12f6fb97	446
718e3744	447	#ifdef HAVE_PROC_NET_DEV
d62a17ae	448	extern void ifstat_update_proc(void);
718e3744	449	#endif /* HAVE_PROC_NET_DEV */
718e3744	450	#ifdef HAVE_NET_RT_IFLIST
d62a17ae	451	extern void ifstat_update_sysctl(void);
718e3744	452
	453	#endif /* HAVE_NET_RT_IFLIST */
	454	#ifdef HAVE_PROC_NET_DEV
d62a17ae	455	extern int interface_list_proc(void);
718e3744	456	#endif /* HAVE_PROC_NET_DEV */
718e3744	457	#ifdef HAVE_PROC_NET_IF_INET6
d62a17ae	458	extern int ifaddr_proc_ipv6(void);
718e3744	459	#endif /* HAVE_PROC_NET_IF_INET6 */
718e3744	460
51e94aa7 EDP	461	#ifdef __cplusplus
	462	}
	463	#endif
	464
5b73a671	465	#endif /* _ZEBRA_INTERFACE_H */