[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"

#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;

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