[mirror_frr.git] / bgpd / bgp_evpn_private.h

/* BGP EVPN internal definitions
 * Copyright (C) 2017 Cumulus Networks, Inc.
 *
 * This file is part of FRR.
 *
 * FRR 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.
 *
 * FRR 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 FRR; see the file COPYING.  If not, write to the Free
 * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA.
 */

#ifndef _BGP_EVPN_PRIVATE_H
#define _BGP_EVPN_PRIVATE_H

#include "vxlan.h"
#include "zebra.h"

#include "bgpd/bgpd.h"
#include "bgpd/bgp_ecommunity.h"

#define RT_ADDRSTRLEN 28

/* EVPN prefix lengths. This reprsent the sizeof struct prefix_evpn  */
#define EVPN_TYPE_2_ROUTE_PREFIXLEN      224
#define EVPN_TYPE_3_ROUTE_PREFIXLEN      224
#define EVPN_TYPE_5_ROUTE_PREFIXLEN      224

/* EVPN route types. */
typedef enum {
	BGP_EVPN_AD_ROUTE = 1,    /* Ethernet Auto-Discovery (A-D) route */
	BGP_EVPN_MAC_IP_ROUTE,    /* MAC/IP Advertisement route */
	BGP_EVPN_IMET_ROUTE,      /* Inclusive Multicast Ethernet Tag route */
	BGP_EVPN_ES_ROUTE,	/* Ethernet Segment route */
	BGP_EVPN_IP_PREFIX_ROUTE, /* IP Prefix route */
} bgp_evpn_route_type;

/*
 * Hash table of EVIs. Right now, the only type of EVI supported is with
 * VxLAN encapsulation, hence each EVI corresponds to a L2 VNI.
 * The VNIs are not "created" through BGP but through some other interface
 * on the system. This table stores VNIs that BGP comes to know as present
 * on the system (through interaction with zebra) as well as pre-configured
 * VNIs (which need to be defined in the system to become "live").
 */
struct bgpevpn {
	vni_t vni;
	vrf_id_t tenant_vrf_id;
	u_int32_t flags;
#define VNI_FLAG_CFGD              0x1  /* VNI is user configured */
#define VNI_FLAG_LIVE              0x2  /* VNI is "live" */
#define VNI_FLAG_RD_CFGD           0x4  /* RD is user configured. */
#define VNI_FLAG_IMPRT_CFGD        0x8  /* Import RT is user configured */
#define VNI_FLAG_EXPRT_CFGD        0x10 /* Export RT is user configured */

	/* Flag to indicate if we are advertising the g/w mac ip for this VNI*/
	u_int8_t advertise_gw_macip;

	/* Flag to indicate if we are advertising subnet for this VNI */
	u_int8_t advertise_subnet;

	/* Id for deriving the RD automatically for this VNI */
	u_int16_t rd_id;

	/* RD for this VNI. */
	struct prefix_rd prd;

	/* Route type 3 field */
	struct in_addr originator_ip;

	/* Import and Export RTs. */
	struct list *import_rtl;
	struct list *export_rtl;

	/* Route table for EVPN routes for this VNI. */
	struct bgp_table *route_table;

	QOBJ_FIELDS
};

DECLARE_QOBJ_TYPE(bgpevpn)

/* Mapping of Import RT to VNIs.
 * The Import RTs of all VNIs are maintained in a hash table with each
 * RT linking to all VNIs that will import routes matching this RT.
 */
struct irt_node {
	/* RT */
	struct ecommunity_val rt;

	/* List of VNIs importing routes matching this RT. */
	struct list *vnis;
};

/* Mapping of Import RT to VRFs.
 * The Import RTs of all VRFss are maintained in a hash table with each
 * RT linking to all VRFs that will import routes matching this RT.
 */
struct vrf_irt_node {
	/* RT */
	struct ecommunity_val rt;

	/* List of VNIs importing routes matching this RT. */
	struct list *vrfs;
};


#define RT_TYPE_IMPORT 1
#define RT_TYPE_EXPORT 2
#define RT_TYPE_BOTH   3

static inline int is_vrf_rd_configured(struct bgp *bgp_vrf)
{
	return (CHECK_FLAG(bgp_vrf->vrf_flags,
			   BGP_VRF_RD_CFGD));
}

static inline int bgp_evpn_vrf_rd_matches_existing(struct bgp *bgp_vrf,
						   struct prefix_rd *prd)
{
	return (memcmp(&bgp_vrf->vrf_prd.val, prd->val, ECOMMUNITY_SIZE) == 0);
}

static inline vni_t bgpevpn_get_l3vni(struct bgpevpn *vpn)
{
	struct bgp *bgp_vrf = NULL;

	bgp_vrf = bgp_lookup_by_vrf_id(vpn->tenant_vrf_id);
	if (!bgp_vrf)
		return 0;

	return bgp_vrf->l3vni;
}

static inline void bgpevpn_get_rmac(struct bgpevpn *vpn, struct ethaddr *rmac)
{
	struct bgp *bgp_vrf = NULL;

	memset(rmac, 0, sizeof(struct ethaddr));
	bgp_vrf = bgp_lookup_by_vrf_id(vpn->tenant_vrf_id);
	if (!bgp_vrf)
		return;
	memcpy(rmac, &bgp_vrf->rmac, sizeof(struct ethaddr));
}

static inline struct list *bgpevpn_get_vrf_export_rtl(struct bgpevpn *vpn)
{
	struct bgp *bgp_vrf = NULL;

	bgp_vrf = bgp_lookup_by_vrf_id(vpn->tenant_vrf_id);
	if (!bgp_vrf)
		return NULL;

	return bgp_vrf->vrf_export_rtl;
}

static inline struct list *bgpevpn_get_vrf_import_rtl(struct bgpevpn *vpn)
{
	struct bgp *bgp_vrf = NULL;

	bgp_vrf = bgp_lookup_by_vrf_id(vpn->tenant_vrf_id);
	if (!bgp_vrf)
		return NULL;

	return bgp_vrf->vrf_import_rtl;
}

static inline void bgpevpn_unlink_from_l3vni(struct bgpevpn *vpn)
{
	struct bgp *bgp_vrf = NULL;

	bgp_vrf = bgp_lookup_by_vrf_id(vpn->tenant_vrf_id);
	if (!bgp_vrf || !bgp_vrf->l2vnis)
		return;
	listnode_delete(bgp_vrf->l2vnis, vpn);
}

static inline void bgpevpn_link_to_l3vni(struct bgpevpn *vpn)
{
	struct bgp *bgp_vrf = NULL;

	bgp_vrf = bgp_lookup_by_vrf_id(vpn->tenant_vrf_id);
	if (!bgp_vrf || !bgp_vrf->l2vnis)
		return;
	listnode_add_sort(bgp_vrf->l2vnis, vpn);
}

static inline int is_vni_configured(struct bgpevpn *vpn)
{
	return (CHECK_FLAG(vpn->flags, VNI_FLAG_CFGD));
}

static inline int is_vni_live(struct bgpevpn *vpn)
{
	return (CHECK_FLAG(vpn->flags, VNI_FLAG_LIVE));
}

static inline int is_rd_configured(struct bgpevpn *vpn)
{
	return (CHECK_FLAG(vpn->flags, VNI_FLAG_RD_CFGD));
}

static inline int bgp_evpn_rd_matches_existing(struct bgpevpn *vpn,
					       struct prefix_rd *prd)
{
	return (memcmp(&vpn->prd.val, prd->val, ECOMMUNITY_SIZE) == 0);
}

static inline int is_import_rt_configured(struct bgpevpn *vpn)
{
	return (CHECK_FLAG(vpn->flags, VNI_FLAG_IMPRT_CFGD));
}

static inline int is_export_rt_configured(struct bgpevpn *vpn)
{
	return (CHECK_FLAG(vpn->flags, VNI_FLAG_EXPRT_CFGD));
}

static inline int is_vni_param_configured(struct bgpevpn *vpn)
{
	return (is_rd_configured(vpn) || is_import_rt_configured(vpn)
		|| is_export_rt_configured(vpn));
}

static inline void encode_rmac_extcomm(struct ecommunity_val *eval,
				       struct ethaddr *rmac)
{
	memset(eval, 0, sizeof(*eval));
	eval->val[0] = ECOMMUNITY_ENCODE_EVPN;
	eval->val[1] = ECOMMUNITY_EVPN_SUBTYPE_ROUTERMAC;
	memcpy(&eval->val[2], rmac, ETH_ALEN);
}

static inline void encode_default_gw_extcomm(struct ecommunity_val *eval)
{
	memset(eval, 0, sizeof(*eval));
	eval->val[0] = ECOMMUNITY_ENCODE_OPAQUE;
	eval->val[1] = ECOMMUNITY_EVPN_SUBTYPE_DEF_GW;
}

static inline void encode_mac_mobility_extcomm(int static_mac, u_int32_t seq,
					       struct ecommunity_val *eval)
{
	memset(eval, 0, sizeof(*eval));
	eval->val[0] = ECOMMUNITY_ENCODE_EVPN;
	eval->val[1] = ECOMMUNITY_EVPN_SUBTYPE_MACMOBILITY;
	if (static_mac)
		eval->val[2] = ECOMMUNITY_EVPN_SUBTYPE_MACMOBILITY_FLAG_STICKY;
	eval->val[4] = (seq >> 24) & 0xff;
	eval->val[5] = (seq >> 16) & 0xff;
	eval->val[6] = (seq >> 8) & 0xff;
	eval->val[7] = seq & 0xff;
}

static inline void ip_prefix_from_type5_prefix(struct prefix_evpn *evp,
					       struct prefix *ip)
{
	memset(ip, 0, sizeof(struct prefix));
	if (IS_EVPN_PREFIX_IPADDR_V4(evp)) {
		ip->family = AF_INET;
		ip->prefixlen = evp->prefix.ip_prefix_length;
		memcpy(&(ip->u.prefix4),
		       &(evp->prefix.ip.ip),
		       IPV4_MAX_BYTELEN);
	} else if (IS_EVPN_PREFIX_IPADDR_V6(evp)) {
		ip->family = AF_INET6;
		ip->prefixlen = evp->prefix.ip_prefix_length;
		memcpy(&(ip->u.prefix6),
		       &(evp->prefix.ip.ip),
		       IPV6_MAX_BYTELEN);
	}
}

static inline void ip_prefix_from_type2_prefix(struct prefix_evpn *evp,
					       struct prefix *ip)
{
	memset(ip, 0, sizeof(struct prefix));
	if (IS_EVPN_PREFIX_IPADDR_V4(evp)) {
		ip->family = AF_INET;
		ip->prefixlen = IPV4_MAX_BITLEN;
		memcpy(&(ip->u.prefix4),
		       &(evp->prefix.ip.ip),
		       IPV4_MAX_BYTELEN);
	} else if (IS_EVPN_PREFIX_IPADDR_V6(evp)) {
		ip->family = AF_INET6;
		ip->prefixlen = IPV6_MAX_BITLEN;
		memcpy(&(ip->u.prefix6),
		       &(evp->prefix.ip.ip),
		       IPV6_MAX_BYTELEN);
	}
}

static inline void build_evpn_type2_prefix(struct prefix_evpn *p,
					   struct ethaddr *mac,
					   struct ipaddr *ip)
{
	memset(p, 0, sizeof(struct prefix_evpn));
	p->family = AF_EVPN;
	p->prefixlen = EVPN_TYPE_2_ROUTE_PREFIXLEN;
	p->prefix.route_type = BGP_EVPN_MAC_IP_ROUTE;
	memcpy(&p->prefix.mac.octet, mac->octet, ETH_ALEN);
	p->prefix.ip.ipa_type = IPADDR_NONE;
	if (ip)
		memcpy(&p->prefix.ip, ip, sizeof(*ip));
}

static inline void build_type5_prefix_from_ip_prefix(struct prefix_evpn *evp,
						     struct prefix *ip_prefix)
{
	struct ipaddr ip;

	memset(&ip, 0, sizeof(struct ipaddr));
	if (ip_prefix->family == AF_INET) {
		ip.ipa_type = IPADDR_V4;
		memcpy(&ip.ipaddr_v4, &ip_prefix->u.prefix4,
		       sizeof(struct in_addr));
	} else {
		ip.ipa_type = IPADDR_V6;
		memcpy(&ip.ipaddr_v6, &ip_prefix->u.prefix6,
		       sizeof(struct in6_addr));
	}

	memset(evp, 0, sizeof(struct prefix_evpn));
	evp->family = AF_EVPN;
	evp->prefixlen = EVPN_TYPE_5_ROUTE_PREFIXLEN;
	evp->prefix.ip_prefix_length = ip_prefix->prefixlen;
	evp->prefix.route_type = BGP_EVPN_IP_PREFIX_ROUTE;
	evp->prefix.ip.ipa_type = ip.ipa_type;
	memcpy(&evp->prefix.ip, &ip, sizeof(struct ipaddr));
}

static inline void build_evpn_type3_prefix(struct prefix_evpn *p,
					   struct in_addr originator_ip)
{
	memset(p, 0, sizeof(struct prefix_evpn));
	p->family = AF_EVPN;
	p->prefixlen = EVPN_TYPE_3_ROUTE_PREFIXLEN;
	p->prefix.route_type = BGP_EVPN_IMET_ROUTE;
	p->prefix.ip.ipa_type = IPADDR_V4;
	p->prefix.ip.ipaddr_v4 = originator_ip;
}

static inline int advertise_type5_routes(struct bgp *bgp_vrf,
					 afi_t afi)
{
	if (!bgp_vrf->l3vni)
		return 0;

	if (afi == AFI_IP &&
	    CHECK_FLAG(bgp_vrf->vrf_flags, BGP_VRF_ADVERTISE_IPV4_IN_EVPN))
		return 1;

	if (afi == AFI_IP6 &&
	    CHECK_FLAG(bgp_vrf->vrf_flags, BGP_VRF_ADVERTISE_IPV6_IN_EVPN))
		return 1;

	return 0;
}

extern void evpn_rt_delete_auto(struct bgp*, vni_t, struct list*);
extern void bgp_evpn_configure_export_rt_for_vrf(struct bgp *bgp_vrf,
						 struct ecommunity *ecomadd);
extern void bgp_evpn_unconfigure_export_rt_for_vrf(struct bgp *bgp_vrf,
						   struct ecommunity *ecomdel);
extern void bgp_evpn_configure_import_rt_for_vrf(struct bgp *bgp_vrf,
						 struct ecommunity *ecomadd);
extern void bgp_evpn_unconfigure_import_rt_for_vrf(struct bgp *bgp_vrf,
						   struct ecommunity *ecomdel);
extern int bgp_evpn_handle_export_rt_change(struct bgp *bgp,
					    struct bgpevpn *vpn);
extern void bgp_evpn_handle_vrf_rd_change(struct bgp *bgp_vrf, int withdraw);
extern void bgp_evpn_handle_rd_change(struct bgp *bgp, struct bgpevpn *vpn,
				      int withdraw);
extern int bgp_evpn_install_routes(struct bgp *bgp, struct bgpevpn *vpn);
extern int bgp_evpn_uninstall_routes(struct bgp *bgp, struct bgpevpn *vpn);
extern void bgp_evpn_map_vrf_to_its_rts(struct bgp *bgp_vrf);
extern void bgp_evpn_unmap_vrf_from_its_rts(struct bgp *bgp_vrf);
extern void bgp_evpn_map_vni_to_its_rts(struct bgp *bgp, struct bgpevpn *vpn);
extern void bgp_evpn_unmap_vni_from_its_rts(struct bgp *bgp,
					    struct bgpevpn *vpn);
extern void bgp_evpn_derive_auto_rt_import(struct bgp *bgp,
					   struct bgpevpn *vpn);
extern void bgp_evpn_derive_auto_rt_export(struct bgp *bgp,
					   struct bgpevpn *vpn);
extern void bgp_evpn_derive_auto_rd(struct bgp *bgp, struct bgpevpn *vpn);
extern void bgp_evpn_derive_auto_rd_for_vrf(struct bgp *bgp);
extern struct bgpevpn *bgp_evpn_lookup_vni(struct bgp *bgp, vni_t vni);
extern struct bgpevpn *bgp_evpn_new(struct bgp *bgp, vni_t vni,
				    struct in_addr originator_ip,
				    vrf_id_t tenant_vrf_id);
extern void bgp_evpn_free(struct bgp *bgp, struct bgpevpn *vpn);
#endif /* _BGP_EVPN_PRIVATE_H */
Commit	Line	Data
a4168ebc	1	/* BGP EVPN internal definitions
	2	* Copyright (C) 2017 Cumulus Networks, Inc.
	3	*
	4	* This file is part of FRR.
	5	*
	6	* FRR is free software; you can redistribute it and/or modify it
	7	* under the terms of the GNU General Public License as published by the
	8	* Free Software Foundation; either version 2, or (at your option) any
	9	* later version.
	10	*
	11	* FRR is distributed in the hope that it will be useful, but
	12	* WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	14	* General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with FRR; see the file COPYING. If not, write to the Free
	18	* Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
	19	* 02111-1307, USA.
	20	*/
	21
	22	#ifndef _BGP_EVPN_PRIVATE_H
	23	#define _BGP_EVPN_PRIVATE_H
	24
	25	#include "vxlan.h"
	26	#include "zebra.h"
	27
	28	#include "bgpd/bgpd.h"
	29	#include "bgpd/bgp_ecommunity.h"
	30
60466a63	31	#define RT_ADDRSTRLEN 28
9c92b5f7	32
e9fc2840	33	/* EVPN prefix lengths. This reprsent the sizeof struct prefix_evpn */
a4168ebc	34	#define EVPN_TYPE_2_ROUTE_PREFIXLEN 224
a4168ebc	35	#define EVPN_TYPE_3_ROUTE_PREFIXLEN 224
e9fc2840	36	#define EVPN_TYPE_5_ROUTE_PREFIXLEN 224
a4168ebc	37
a4168ebc	38	/* EVPN route types. */
d62a17ae	39	typedef enum {
	40	BGP_EVPN_AD_ROUTE = 1, /* Ethernet Auto-Discovery (A-D) route */
	41	BGP_EVPN_MAC_IP_ROUTE, /* MAC/IP Advertisement route */
	42	BGP_EVPN_IMET_ROUTE, /* Inclusive Multicast Ethernet Tag route */
	43	BGP_EVPN_ES_ROUTE, /* Ethernet Segment route */
	44	BGP_EVPN_IP_PREFIX_ROUTE, /* IP Prefix route */
a4168ebc	45	} bgp_evpn_route_type;
	46
	47	/*
	48	* Hash table of EVIs. Right now, the only type of EVI supported is with
	49	* VxLAN encapsulation, hence each EVI corresponds to a L2 VNI.
	50	* The VNIs are not "created" through BGP but through some other interface
	51	* on the system. This table stores VNIs that BGP comes to know as present
	52	* on the system (through interaction with zebra) as well as pre-configured
	53	* VNIs (which need to be defined in the system to become "live").
	54	*/
d62a17ae	55	struct bgpevpn {
d62a17ae	56	vni_t vni;
29c53922	57	vrf_id_t tenant_vrf_id;
d62a17ae	58	u_int32_t flags;
a4168ebc	59	#define VNI_FLAG_CFGD 0x1 /* VNI is user configured */
	60	#define VNI_FLAG_LIVE 0x2 /* VNI is "live" */
	61	#define VNI_FLAG_RD_CFGD 0x4 /* RD is user configured. */
	62	#define VNI_FLAG_IMPRT_CFGD 0x8 /* Import RT is user configured */
	63	#define VNI_FLAG_EXPRT_CFGD 0x10 /* Export RT is user configured */
	64
1a98c087 MK	65	/* Flag to indicate if we are advertising the g/w mac ip for this VNI*/
	66	u_int8_t advertise_gw_macip;
	67
31310b25 MK	68	/* Flag to indicate if we are advertising subnet for this VNI */
	69	u_int8_t advertise_subnet;
	70
d62a17ae	71	/* Id for deriving the RD automatically for this VNI */
d62a17ae	72	u_int16_t rd_id;
a4168ebc	73
d62a17ae	74	/* RD for this VNI. */
d62a17ae	75	struct prefix_rd prd;
a4168ebc	76
d62a17ae	77	/* Route type 3 field */
d62a17ae	78	struct in_addr originator_ip;
a4168ebc	79
d62a17ae	80	/* Import and Export RTs. */
	81	struct list *import_rtl;
	82	struct list *export_rtl;
a4168ebc	83
d62a17ae	84	/* Route table for EVPN routes for this VNI. */
d62a17ae	85	struct bgp_table *route_table;
a4168ebc	86
d62a17ae	87	QOBJ_FIELDS
a4168ebc	88	};
	89
	90	DECLARE_QOBJ_TYPE(bgpevpn)
	91
	92	/* Mapping of Import RT to VNIs.
	93	* The Import RTs of all VNIs are maintained in a hash table with each
	94	* RT linking to all VNIs that will import routes matching this RT.
	95	*/
d62a17ae	96	struct irt_node {
	97	/* RT */
	98	struct ecommunity_val rt;
a4168ebc	99
d62a17ae	100	/* List of VNIs importing routes matching this RT. */
d62a17ae	101	struct list *vnis;
a4168ebc	102	};
a4168ebc	103
10ebe1ab MK	104	/* Mapping of Import RT to VRFs.
	105	* The Import RTs of all VRFss are maintained in a hash table with each
	106	* RT linking to all VRFs that will import routes matching this RT.
	107	*/
	108	struct vrf_irt_node {
	109	/* RT */
	110	struct ecommunity_val rt;
	111
	112	/* List of VNIs importing routes matching this RT. */
	113	struct list *vrfs;
	114	};
	115
	116
128ea8ab	117	#define RT_TYPE_IMPORT 1
	118	#define RT_TYPE_EXPORT 2
	119	#define RT_TYPE_BOTH 3
	120
676f83b9	121	static inline int is_vrf_rd_configured(struct bgp *bgp_vrf)
	122	{
	123	return (CHECK_FLAG(bgp_vrf->vrf_flags,
	124	BGP_VRF_RD_CFGD));
	125	}
	126
	127	static inline int bgp_evpn_vrf_rd_matches_existing(struct bgp *bgp_vrf,
	128	struct prefix_rd *prd)
	129	{
	130	return (memcmp(&bgp_vrf->vrf_prd.val, prd->val, ECOMMUNITY_SIZE) == 0);
	131	}
	132
6d8c58b7 MK	133	static inline vni_t bgpevpn_get_l3vni(struct bgpevpn *vpn)
	134	{
	135	struct bgp *bgp_vrf = NULL;
	136
	137	bgp_vrf = bgp_lookup_by_vrf_id(vpn->tenant_vrf_id);
	138	if (!bgp_vrf)
	139	return 0;
	140
	141	return bgp_vrf->l3vni;
	142	}
	143
	144	static inline void bgpevpn_get_rmac(struct bgpevpn vpn, struct ethaddr rmac)
	145	{
	146	struct bgp *bgp_vrf = NULL;
	147
	148	memset(rmac, 0, sizeof(struct ethaddr));
	149	bgp_vrf = bgp_lookup_by_vrf_id(vpn->tenant_vrf_id);
	150	if (!bgp_vrf)
	151	return;
	152	memcpy(rmac, &bgp_vrf->rmac, sizeof(struct ethaddr));
	153	}
	154
	155	static inline struct list bgpevpn_get_vrf_export_rtl(struct bgpevpn vpn)
	156	{
	157	struct bgp *bgp_vrf = NULL;
	158
	159	bgp_vrf = bgp_lookup_by_vrf_id(vpn->tenant_vrf_id);
	160	if (!bgp_vrf)
	161	return NULL;
	162
	163	return bgp_vrf->vrf_export_rtl;
	164	}
	165
	166	static inline struct list bgpevpn_get_vrf_import_rtl(struct bgpevpn vpn)
	167	{
	168	struct bgp *bgp_vrf = NULL;
	169
	170	bgp_vrf = bgp_lookup_by_vrf_id(vpn->tenant_vrf_id);
	171	if (!bgp_vrf)
	172	return NULL;
	173
	174	return bgp_vrf->vrf_import_rtl;
	175	}
	176
6a8657d0 MK	177	static inline void bgpevpn_unlink_from_l3vni(struct bgpevpn *vpn)
	178	{
	179	struct bgp *bgp_vrf = NULL;
	180
	181	bgp_vrf = bgp_lookup_by_vrf_id(vpn->tenant_vrf_id);
	182	if (!bgp_vrf \|\| !bgp_vrf->l2vnis)
	183	return;
	184	listnode_delete(bgp_vrf->l2vnis, vpn);
	185	}
	186
	187	static inline void bgpevpn_link_to_l3vni(struct bgpevpn *vpn)
	188	{
	189	struct bgp *bgp_vrf = NULL;
	190
	191	bgp_vrf = bgp_lookup_by_vrf_id(vpn->tenant_vrf_id);
	192	if (!bgp_vrf \|\| !bgp_vrf->l2vnis)
	193	return;
	194	listnode_add_sort(bgp_vrf->l2vnis, vpn);
	195	}
	196
d62a17ae	197	static inline int is_vni_configured(struct bgpevpn *vpn)
128ea8ab	198	{
d62a17ae	199	return (CHECK_FLAG(vpn->flags, VNI_FLAG_CFGD));
128ea8ab	200	}
128ea8ab	201
d62a17ae	202	static inline int is_vni_live(struct bgpevpn *vpn)
128ea8ab	203	{
d62a17ae	204	return (CHECK_FLAG(vpn->flags, VNI_FLAG_LIVE));
128ea8ab	205	}
128ea8ab	206
d62a17ae	207	static inline int is_rd_configured(struct bgpevpn *vpn)
128ea8ab	208	{
d62a17ae	209	return (CHECK_FLAG(vpn->flags, VNI_FLAG_RD_CFGD));
128ea8ab	210	}
128ea8ab	211
d62a17ae	212	static inline int bgp_evpn_rd_matches_existing(struct bgpevpn *vpn,
d62a17ae	213	struct prefix_rd *prd)
128ea8ab	214	{
d62a17ae	215	return (memcmp(&vpn->prd.val, prd->val, ECOMMUNITY_SIZE) == 0);
128ea8ab	216	}
128ea8ab	217
d62a17ae	218	static inline int is_import_rt_configured(struct bgpevpn *vpn)
128ea8ab	219	{
d62a17ae	220	return (CHECK_FLAG(vpn->flags, VNI_FLAG_IMPRT_CFGD));
128ea8ab	221	}
128ea8ab	222
d62a17ae	223	static inline int is_export_rt_configured(struct bgpevpn *vpn)
128ea8ab	224	{
d62a17ae	225	return (CHECK_FLAG(vpn->flags, VNI_FLAG_EXPRT_CFGD));
128ea8ab	226	}
128ea8ab	227
d62a17ae	228	static inline int is_vni_param_configured(struct bgpevpn *vpn)
128ea8ab	229	{
d62a17ae	230	return (is_rd_configured(vpn) \|\| is_import_rt_configured(vpn)
d62a17ae	231	\|\| is_export_rt_configured(vpn));
128ea8ab	232	}
128ea8ab	233
bc59a672 MK	234	static inline void encode_rmac_extcomm(struct ecommunity_val *eval,
	235	struct ethaddr *rmac)
	236	{
	237	memset(eval, 0, sizeof(*eval));
	238	eval->val[0] = ECOMMUNITY_ENCODE_EVPN;
	239	eval->val[1] = ECOMMUNITY_EVPN_SUBTYPE_ROUTERMAC;
	240	memcpy(&eval->val[2], rmac, ETH_ALEN);
	241	}
	242
ead40654 MK	243	static inline void encode_default_gw_extcomm(struct ecommunity_val *eval)
	244	{
	245	memset(eval, 0, sizeof(*eval));
	246	eval->val[0] = ECOMMUNITY_ENCODE_OPAQUE;
	247	eval->val[1] = ECOMMUNITY_EVPN_SUBTYPE_DEF_GW;
	248	}
	249
d62a17ae	250	static inline void encode_mac_mobility_extcomm(int static_mac, u_int32_t seq,
d62a17ae	251	struct ecommunity_val *eval)
128ea8ab	252	{
d62a17ae	253	memset(eval, 0, sizeof(*eval));
	254	eval->val[0] = ECOMMUNITY_ENCODE_EVPN;
	255	eval->val[1] = ECOMMUNITY_EVPN_SUBTYPE_MACMOBILITY;
	256	if (static_mac)
	257	eval->val[2] = ECOMMUNITY_EVPN_SUBTYPE_MACMOBILITY_FLAG_STICKY;
	258	eval->val[4] = (seq >> 24) & 0xff;
	259	eval->val[5] = (seq >> 16) & 0xff;
	260	eval->val[6] = (seq >> 8) & 0xff;
	261	eval->val[7] = seq & 0xff;
128ea8ab	262	}
128ea8ab	263
90264d64 MK	264	static inline void ip_prefix_from_type5_prefix(struct prefix_evpn *evp,
	265	struct prefix *ip)
	266	{
	267	memset(ip, 0, sizeof(struct prefix));
	268	if (IS_EVPN_PREFIX_IPADDR_V4(evp)) {
	269	ip->family = AF_INET;
	270	ip->prefixlen = evp->prefix.ip_prefix_length;
	271	memcpy(&(ip->u.prefix4),
	272	&(evp->prefix.ip.ip),
	273	IPV4_MAX_BYTELEN);
	274	} else if (IS_EVPN_PREFIX_IPADDR_V6(evp)) {
	275	ip->family = AF_INET6;
	276	ip->prefixlen = evp->prefix.ip_prefix_length;
	277	memcpy(&(ip->u.prefix6),
	278	&(evp->prefix.ip.ip),
	279	IPV6_MAX_BYTELEN);
	280	}
	281	}
	282
d3135ba3	283	static inline void ip_prefix_from_type2_prefix(struct prefix_evpn *evp,
	284	struct prefix *ip)
	285	{
	286	memset(ip, 0, sizeof(struct prefix));
	287	if (IS_EVPN_PREFIX_IPADDR_V4(evp)) {
	288	ip->family = AF_INET;
	289	ip->prefixlen = IPV4_MAX_BITLEN;
	290	memcpy(&(ip->u.prefix4),
	291	&(evp->prefix.ip.ip),
	292	IPV4_MAX_BYTELEN);
	293	} else if (IS_EVPN_PREFIX_IPADDR_V6(evp)) {
	294	ip->family = AF_INET6;
	295	ip->prefixlen = IPV6_MAX_BITLEN;
	296	memcpy(&(ip->u.prefix6),
	297	&(evp->prefix.ip.ip),
	298	IPV6_MAX_BYTELEN);
	299	}
	300	}
	301
d62a17ae	302	static inline void build_evpn_type2_prefix(struct prefix_evpn *p,
	303	struct ethaddr *mac,
	304	struct ipaddr *ip)
128ea8ab	305	{
d62a17ae	306	memset(p, 0, sizeof(struct prefix_evpn));
b03b8898	307	p->family = AF_EVPN;
d62a17ae	308	p->prefixlen = EVPN_TYPE_2_ROUTE_PREFIXLEN;
d62a17ae	309	p->prefix.route_type = BGP_EVPN_MAC_IP_ROUTE;
28328ea9	310	memcpy(&p->prefix.mac.octet, mac->octet, ETH_ALEN);
d62a17ae	311	p->prefix.ip.ipa_type = IPADDR_NONE;
	312	if (ip)
	313	memcpy(&p->prefix.ip, ip, sizeof(*ip));
128ea8ab	314	}
128ea8ab	315
342dd0c6	316	static inline void build_type5_prefix_from_ip_prefix(struct prefix_evpn *evp,
	317	struct prefix *ip_prefix)
	318	{
	319	struct ipaddr ip;
	320
	321	memset(&ip, 0, sizeof(struct ipaddr));
	322	if (ip_prefix->family == AF_INET) {
	323	ip.ipa_type = IPADDR_V4;
	324	memcpy(&ip.ipaddr_v4, &ip_prefix->u.prefix4,
	325	sizeof(struct in_addr));
	326	} else {
	327	ip.ipa_type = IPADDR_V6;
	328	memcpy(&ip.ipaddr_v6, &ip_prefix->u.prefix6,
	329	sizeof(struct in6_addr));
	330	}
	331
	332	memset(evp, 0, sizeof(struct prefix_evpn));
	333	evp->family = AF_EVPN;
	334	evp->prefixlen = EVPN_TYPE_5_ROUTE_PREFIXLEN;
	335	evp->prefix.ip_prefix_length = ip_prefix->prefixlen;
	336	evp->prefix.route_type = BGP_EVPN_IP_PREFIX_ROUTE;
	337	evp->prefix.ip.ipa_type = ip.ipa_type;
	338	memcpy(&evp->prefix.ip, &ip, sizeof(struct ipaddr));
	339	}
	340
d62a17ae	341	static inline void build_evpn_type3_prefix(struct prefix_evpn *p,
d62a17ae	342	struct in_addr originator_ip)
128ea8ab	343	{
d62a17ae	344	memset(p, 0, sizeof(struct prefix_evpn));
b03b8898	345	p->family = AF_EVPN;
d62a17ae	346	p->prefixlen = EVPN_TYPE_3_ROUTE_PREFIXLEN;
	347	p->prefix.route_type = BGP_EVPN_IMET_ROUTE;
	348	p->prefix.ip.ipa_type = IPADDR_V4;
	349	p->prefix.ip.ipaddr_v4 = originator_ip;
128ea8ab	350	}
128ea8ab	351
06d2e8f3 MK	352	static inline int advertise_type5_routes(struct bgp *bgp_vrf,
	353	afi_t afi)
	354	{
	355	if (!bgp_vrf->l3vni)
	356	return 0;
	357
	358	if (afi == AFI_IP &&
	359	CHECK_FLAG(bgp_vrf->vrf_flags, BGP_VRF_ADVERTISE_IPV4_IN_EVPN))
	360	return 1;
	361
	362	if (afi == AFI_IP6 &&
	363	CHECK_FLAG(bgp_vrf->vrf_flags, BGP_VRF_ADVERTISE_IPV6_IN_EVPN))
	364	return 1;
	365
	366	return 0;
	367	}
	368
c581d8b0	369	extern void evpn_rt_delete_auto(struct bgp, vni_t, struct list);
523cafc4	370	extern void bgp_evpn_configure_export_rt_for_vrf(struct bgp *bgp_vrf,
	371	struct ecommunity *ecomadd);
	372	extern void bgp_evpn_unconfigure_export_rt_for_vrf(struct bgp *bgp_vrf,
	373	struct ecommunity *ecomdel);
	374	extern void bgp_evpn_configure_import_rt_for_vrf(struct bgp *bgp_vrf,
	375	struct ecommunity *ecomadd);
	376	extern void bgp_evpn_unconfigure_import_rt_for_vrf(struct bgp *bgp_vrf,
	377	struct ecommunity *ecomdel);
d62a17ae	378	extern int bgp_evpn_handle_export_rt_change(struct bgp *bgp,
d62a17ae	379	struct bgpevpn *vpn);
676f83b9	380	extern void bgp_evpn_handle_vrf_rd_change(struct bgp *bgp_vrf, int withdraw);
d62a17ae	381	extern void bgp_evpn_handle_rd_change(struct bgp bgp, struct bgpevpn vpn,
	382	int withdraw);
	383	extern int bgp_evpn_install_routes(struct bgp bgp, struct bgpevpn vpn);
	384	extern int bgp_evpn_uninstall_routes(struct bgp bgp, struct bgpevpn vpn);
523cafc4	385	extern void bgp_evpn_map_vrf_to_its_rts(struct bgp *bgp_vrf);
523cafc4	386	extern void bgp_evpn_unmap_vrf_from_its_rts(struct bgp *bgp_vrf);
d62a17ae	387	extern void bgp_evpn_map_vni_to_its_rts(struct bgp bgp, struct bgpevpn vpn);
	388	extern void bgp_evpn_unmap_vni_from_its_rts(struct bgp *bgp,
	389	struct bgpevpn *vpn);
	390	extern void bgp_evpn_derive_auto_rt_import(struct bgp *bgp,
	391	struct bgpevpn *vpn);
	392	extern void bgp_evpn_derive_auto_rt_export(struct bgp *bgp,
	393	struct bgpevpn *vpn);
	394	extern void bgp_evpn_derive_auto_rd(struct bgp bgp, struct bgpevpn vpn);
676f83b9	395	extern void bgp_evpn_derive_auto_rd_for_vrf(struct bgp *bgp);
d62a17ae	396	extern struct bgpevpn bgp_evpn_lookup_vni(struct bgp bgp, vni_t vni);
d62a17ae	397	extern struct bgpevpn bgp_evpn_new(struct bgp bgp, vni_t vni,
29c53922 MK	398	struct in_addr originator_ip,
29c53922 MK	399	vrf_id_t tenant_vrf_id);
d62a17ae	400	extern void bgp_evpn_free(struct bgp bgp, struct bgpevpn vpn);
a4168ebc	401	#endif /* _BGP_EVPN_PRIVATE_H */