[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;

	/* 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 vni2label(vni_t vni, mpls_label_t *label)
{
	u_char *tag = (u_char *)label;
	tag[0] = (vni >> 16) & 0xFF;
	tag[1] = (vni >> 8) & 0xFF;
	tag[2] = vni & 0xFF;
}

static inline vni_t label2vni(mpls_label_t *label)
{
	u_char *tag = (u_char *)label;
	vni_t vni;

	vni = ((u_int32_t)*tag++ << 16);
	vni |= (u_int32_t)*tag++ << 8;
	vni |= (u_int32_t)(*tag & 0xFF);

	return vni;
}

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_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*,
						 struct ecommunity*);
extern void bgp_evpn_unconfigure_export_rt_for_vrf(struct bgp*,
						   struct ecommunity*);
extern void bgp_evpn_configure_import_rt_for_vrf(struct bgp*,
						 struct ecommunity*);
extern void bgp_evpn_unconfigure_import_rt_for_vrf(struct bgp*,
						   struct ecommunity*);
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 *);
extern void bgp_evpn_unmap_vrf_from_its_rts(struct bgp *);
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
d62a17ae	68	/* Id for deriving the RD automatically for this VNI */
d62a17ae	69	u_int16_t rd_id;
a4168ebc	70
d62a17ae	71	/* RD for this VNI. */
d62a17ae	72	struct prefix_rd prd;
a4168ebc	73
d62a17ae	74	/* Route type 3 field */
d62a17ae	75	struct in_addr originator_ip;
a4168ebc	76
d62a17ae	77	/* Import and Export RTs. */
	78	struct list *import_rtl;
	79	struct list *export_rtl;
a4168ebc	80
d62a17ae	81	/* Route table for EVPN routes for this VNI. */
d62a17ae	82	struct bgp_table *route_table;
a4168ebc	83
d62a17ae	84	QOBJ_FIELDS
a4168ebc	85	};
	86
	87	DECLARE_QOBJ_TYPE(bgpevpn)
	88
	89	/* Mapping of Import RT to VNIs.
	90	* The Import RTs of all VNIs are maintained in a hash table with each
	91	* RT linking to all VNIs that will import routes matching this RT.
	92	*/
d62a17ae	93	struct irt_node {
	94	/* RT */
	95	struct ecommunity_val rt;
a4168ebc	96
d62a17ae	97	/* List of VNIs importing routes matching this RT. */
d62a17ae	98	struct list *vnis;
a4168ebc	99	};
a4168ebc	100
10ebe1ab MK	101	/* Mapping of Import RT to VRFs.
	102	* The Import RTs of all VRFss are maintained in a hash table with each
	103	* RT linking to all VRFs that will import routes matching this RT.
	104	*/
	105	struct vrf_irt_node {
	106	/* RT */
	107	struct ecommunity_val rt;
	108
	109	/* List of VNIs importing routes matching this RT. */
	110	struct list *vrfs;
	111	};
	112
	113
128ea8ab	114	#define RT_TYPE_IMPORT 1
	115	#define RT_TYPE_EXPORT 2
	116	#define RT_TYPE_BOTH 3
	117
676f83b9	118	static inline int is_vrf_rd_configured(struct bgp *bgp_vrf)
	119	{
	120	return (CHECK_FLAG(bgp_vrf->vrf_flags,
	121	BGP_VRF_RD_CFGD));
	122	}
	123
	124	static inline int bgp_evpn_vrf_rd_matches_existing(struct bgp *bgp_vrf,
	125	struct prefix_rd *prd)
	126	{
	127	return (memcmp(&bgp_vrf->vrf_prd.val, prd->val, ECOMMUNITY_SIZE) == 0);
	128	}
	129
6d8c58b7 MK	130	static inline vni_t bgpevpn_get_l3vni(struct bgpevpn *vpn)
	131	{
	132	struct bgp *bgp_vrf = NULL;
	133
	134	bgp_vrf = bgp_lookup_by_vrf_id(vpn->tenant_vrf_id);
	135	if (!bgp_vrf)
	136	return 0;
	137
	138	return bgp_vrf->l3vni;
	139	}
	140
	141	static inline void bgpevpn_get_rmac(struct bgpevpn vpn, struct ethaddr rmac)
	142	{
	143	struct bgp *bgp_vrf = NULL;
	144
	145	memset(rmac, 0, sizeof(struct ethaddr));
	146	bgp_vrf = bgp_lookup_by_vrf_id(vpn->tenant_vrf_id);
	147	if (!bgp_vrf)
	148	return;
	149	memcpy(rmac, &bgp_vrf->rmac, sizeof(struct ethaddr));
	150	}
	151
	152	static inline struct list bgpevpn_get_vrf_export_rtl(struct bgpevpn vpn)
	153	{
	154	struct bgp *bgp_vrf = NULL;
	155
	156	bgp_vrf = bgp_lookup_by_vrf_id(vpn->tenant_vrf_id);
	157	if (!bgp_vrf)
	158	return NULL;
	159
	160	return bgp_vrf->vrf_export_rtl;
	161	}
	162
	163	static inline struct list bgpevpn_get_vrf_import_rtl(struct bgpevpn vpn)
	164	{
	165	struct bgp *bgp_vrf = NULL;
	166
	167	bgp_vrf = bgp_lookup_by_vrf_id(vpn->tenant_vrf_id);
	168	if (!bgp_vrf)
	169	return NULL;
	170
	171	return bgp_vrf->vrf_import_rtl;
	172	}
	173
6a8657d0 MK	174	static inline void bgpevpn_unlink_from_l3vni(struct bgpevpn *vpn)
	175	{
	176	struct bgp *bgp_vrf = NULL;
	177
	178	bgp_vrf = bgp_lookup_by_vrf_id(vpn->tenant_vrf_id);
	179	if (!bgp_vrf \|\| !bgp_vrf->l2vnis)
	180	return;
	181	listnode_delete(bgp_vrf->l2vnis, vpn);
	182	}
	183
	184	static inline void bgpevpn_link_to_l3vni(struct bgpevpn *vpn)
	185	{
	186	struct bgp *bgp_vrf = NULL;
	187
	188	bgp_vrf = bgp_lookup_by_vrf_id(vpn->tenant_vrf_id);
	189	if (!bgp_vrf \|\| !bgp_vrf->l2vnis)
	190	return;
	191	listnode_add_sort(bgp_vrf->l2vnis, vpn);
	192	}
	193
d62a17ae	194	static inline int is_vni_configured(struct bgpevpn *vpn)
128ea8ab	195	{
d62a17ae	196	return (CHECK_FLAG(vpn->flags, VNI_FLAG_CFGD));
128ea8ab	197	}
128ea8ab	198
d62a17ae	199	static inline int is_vni_live(struct bgpevpn *vpn)
128ea8ab	200	{
d62a17ae	201	return (CHECK_FLAG(vpn->flags, VNI_FLAG_LIVE));
128ea8ab	202	}
128ea8ab	203
d62a17ae	204	static inline int is_rd_configured(struct bgpevpn *vpn)
128ea8ab	205	{
d62a17ae	206	return (CHECK_FLAG(vpn->flags, VNI_FLAG_RD_CFGD));
128ea8ab	207	}
128ea8ab	208
d62a17ae	209	static inline int bgp_evpn_rd_matches_existing(struct bgpevpn *vpn,
d62a17ae	210	struct prefix_rd *prd)
128ea8ab	211	{
d62a17ae	212	return (memcmp(&vpn->prd.val, prd->val, ECOMMUNITY_SIZE) == 0);
128ea8ab	213	}
128ea8ab	214
d62a17ae	215	static inline int is_import_rt_configured(struct bgpevpn *vpn)
128ea8ab	216	{
d62a17ae	217	return (CHECK_FLAG(vpn->flags, VNI_FLAG_IMPRT_CFGD));
128ea8ab	218	}
128ea8ab	219
d62a17ae	220	static inline int is_export_rt_configured(struct bgpevpn *vpn)
128ea8ab	221	{
d62a17ae	222	return (CHECK_FLAG(vpn->flags, VNI_FLAG_EXPRT_CFGD));
128ea8ab	223	}
128ea8ab	224
d62a17ae	225	static inline int is_vni_param_configured(struct bgpevpn *vpn)
128ea8ab	226	{
d62a17ae	227	return (is_rd_configured(vpn) \|\| is_import_rt_configured(vpn)
d62a17ae	228	\|\| is_export_rt_configured(vpn));
128ea8ab	229	}
128ea8ab	230
d62a17ae	231	static inline void vni2label(vni_t vni, mpls_label_t *label)
128ea8ab	232	{
d62a17ae	233	u_char tag = (u_char )label;
	234	tag[0] = (vni >> 16) & 0xFF;
	235	tag[1] = (vni >> 8) & 0xFF;
	236	tag[2] = vni & 0xFF;
128ea8ab	237	}
128ea8ab	238
d62a17ae	239	static inline vni_t label2vni(mpls_label_t *label)
128ea8ab	240	{
d62a17ae	241	u_char tag = (u_char )label;
d62a17ae	242	vni_t vni;
128ea8ab	243
d62a17ae	244	vni = ((u_int32_t)*tag++ << 16);
	245	vni \|= (u_int32_t)*tag++ << 8;
	246	vni \|= (u_int32_t)(*tag & 0xFF);
128ea8ab	247
d62a17ae	248	return vni;
128ea8ab	249	}
128ea8ab	250
bc59a672 MK	251	static inline void encode_rmac_extcomm(struct ecommunity_val *eval,
	252	struct ethaddr *rmac)
	253	{
	254	memset(eval, 0, sizeof(*eval));
	255	eval->val[0] = ECOMMUNITY_ENCODE_EVPN;
	256	eval->val[1] = ECOMMUNITY_EVPN_SUBTYPE_ROUTERMAC;
	257	memcpy(&eval->val[2], rmac, ETH_ALEN);
	258	}
	259
d62a17ae	260	static inline void encode_mac_mobility_extcomm(int static_mac, u_int32_t seq,
d62a17ae	261	struct ecommunity_val *eval)
128ea8ab	262	{
d62a17ae	263	memset(eval, 0, sizeof(*eval));
	264	eval->val[0] = ECOMMUNITY_ENCODE_EVPN;
	265	eval->val[1] = ECOMMUNITY_EVPN_SUBTYPE_MACMOBILITY;
	266	if (static_mac)
	267	eval->val[2] = ECOMMUNITY_EVPN_SUBTYPE_MACMOBILITY_FLAG_STICKY;
	268	eval->val[4] = (seq >> 24) & 0xff;
	269	eval->val[5] = (seq >> 16) & 0xff;
	270	eval->val[6] = (seq >> 8) & 0xff;
	271	eval->val[7] = seq & 0xff;
128ea8ab	272	}
128ea8ab	273
90264d64 MK	274	static inline void ip_prefix_from_type5_prefix(struct prefix_evpn *evp,
	275	struct prefix *ip)
	276	{
	277	memset(ip, 0, sizeof(struct prefix));
	278	if (IS_EVPN_PREFIX_IPADDR_V4(evp)) {
	279	ip->family = AF_INET;
	280	ip->prefixlen = evp->prefix.ip_prefix_length;
	281	memcpy(&(ip->u.prefix4),
	282	&(evp->prefix.ip.ip),
	283	IPV4_MAX_BYTELEN);
	284	} else if (IS_EVPN_PREFIX_IPADDR_V6(evp)) {
	285	ip->family = AF_INET6;
	286	ip->prefixlen = evp->prefix.ip_prefix_length;
	287	memcpy(&(ip->u.prefix6),
	288	&(evp->prefix.ip.ip),
	289	IPV6_MAX_BYTELEN);
	290	}
	291	}
	292
d3135ba3	293	static inline void ip_prefix_from_type2_prefix(struct prefix_evpn *evp,
	294	struct prefix *ip)
	295	{
	296	memset(ip, 0, sizeof(struct prefix));
	297	if (IS_EVPN_PREFIX_IPADDR_V4(evp)) {
	298	ip->family = AF_INET;
	299	ip->prefixlen = IPV4_MAX_BITLEN;
	300	memcpy(&(ip->u.prefix4),
	301	&(evp->prefix.ip.ip),
	302	IPV4_MAX_BYTELEN);
	303	} else if (IS_EVPN_PREFIX_IPADDR_V6(evp)) {
	304	ip->family = AF_INET6;
	305	ip->prefixlen = IPV6_MAX_BITLEN;
	306	memcpy(&(ip->u.prefix6),
	307	&(evp->prefix.ip.ip),
	308	IPV6_MAX_BYTELEN);
	309	}
	310	}
	311
d62a17ae	312	static inline void build_evpn_type2_prefix(struct prefix_evpn *p,
	313	struct ethaddr *mac,
	314	struct ipaddr *ip)
128ea8ab	315	{
d62a17ae	316	memset(p, 0, sizeof(struct prefix_evpn));
b03b8898	317	p->family = AF_EVPN;
d62a17ae	318	p->prefixlen = EVPN_TYPE_2_ROUTE_PREFIXLEN;
d62a17ae	319	p->prefix.route_type = BGP_EVPN_MAC_IP_ROUTE;
28328ea9	320	memcpy(&p->prefix.mac.octet, mac->octet, ETH_ALEN);
d62a17ae	321	p->prefix.ip.ipa_type = IPADDR_NONE;
	322	if (ip)
	323	memcpy(&p->prefix.ip, ip, sizeof(*ip));
128ea8ab	324	}
128ea8ab	325
342dd0c6	326	static inline void build_type5_prefix_from_ip_prefix(struct prefix_evpn *evp,
	327	struct prefix *ip_prefix)
	328	{
	329	struct ipaddr ip;
	330
	331	memset(&ip, 0, sizeof(struct ipaddr));
	332	if (ip_prefix->family == AF_INET) {
	333	ip.ipa_type = IPADDR_V4;
	334	memcpy(&ip.ipaddr_v4, &ip_prefix->u.prefix4,
	335	sizeof(struct in_addr));
	336	} else {
	337	ip.ipa_type = IPADDR_V6;
	338	memcpy(&ip.ipaddr_v6, &ip_prefix->u.prefix6,
	339	sizeof(struct in6_addr));
	340	}
	341
	342	memset(evp, 0, sizeof(struct prefix_evpn));
	343	evp->family = AF_EVPN;
	344	evp->prefixlen = EVPN_TYPE_5_ROUTE_PREFIXLEN;
	345	evp->prefix.ip_prefix_length = ip_prefix->prefixlen;
	346	evp->prefix.route_type = BGP_EVPN_IP_PREFIX_ROUTE;
	347	evp->prefix.ip.ipa_type = ip.ipa_type;
	348	memcpy(&evp->prefix.ip, &ip, sizeof(struct ipaddr));
	349	}
	350
d62a17ae	351	static inline void build_evpn_type3_prefix(struct prefix_evpn *p,
d62a17ae	352	struct in_addr originator_ip)
128ea8ab	353	{
d62a17ae	354	memset(p, 0, sizeof(struct prefix_evpn));
b03b8898	355	p->family = AF_EVPN;
d62a17ae	356	p->prefixlen = EVPN_TYPE_3_ROUTE_PREFIXLEN;
	357	p->prefix.route_type = BGP_EVPN_IMET_ROUTE;
	358	p->prefix.ip.ipa_type = IPADDR_V4;
	359	p->prefix.ip.ipaddr_v4 = originator_ip;
128ea8ab	360	}
128ea8ab	361
06d2e8f3 MK	362	static inline int advertise_type5_routes(struct bgp *bgp_vrf,
	363	afi_t afi)
	364	{
	365	if (!bgp_vrf->l3vni)
	366	return 0;
	367
	368	if (afi == AFI_IP &&
	369	CHECK_FLAG(bgp_vrf->vrf_flags, BGP_VRF_ADVERTISE_IPV4_IN_EVPN))
	370	return 1;
	371
	372	if (afi == AFI_IP6 &&
	373	CHECK_FLAG(bgp_vrf->vrf_flags, BGP_VRF_ADVERTISE_IPV6_IN_EVPN))
	374	return 1;
	375
	376	return 0;
	377	}
	378
c581d8b0 MK	379	extern void evpn_rt_delete_auto(struct bgp, vni_t, struct list);
	380	extern void bgp_evpn_configure_export_rt_for_vrf(struct bgp*,
	381	struct ecommunity*);
	382	extern void bgp_evpn_unconfigure_export_rt_for_vrf(struct bgp*,
	383	struct ecommunity*);
	384	extern void bgp_evpn_configure_import_rt_for_vrf(struct bgp*,
	385	struct ecommunity*);
	386	extern void bgp_evpn_unconfigure_import_rt_for_vrf(struct bgp*,
	387	struct ecommunity*);
d62a17ae	388	extern int bgp_evpn_handle_export_rt_change(struct bgp *bgp,
d62a17ae	389	struct bgpevpn *vpn);
676f83b9	390	extern void bgp_evpn_handle_vrf_rd_change(struct bgp *bgp_vrf, int withdraw);
d62a17ae	391	extern void bgp_evpn_handle_rd_change(struct bgp bgp, struct bgpevpn vpn,
	392	int withdraw);
	393	extern int bgp_evpn_install_routes(struct bgp bgp, struct bgpevpn vpn);
	394	extern int bgp_evpn_uninstall_routes(struct bgp bgp, struct bgpevpn vpn);
10ebe1ab MK	395	extern void bgp_evpn_map_vrf_to_its_rts(struct bgp *);
10ebe1ab MK	396	extern void bgp_evpn_unmap_vrf_from_its_rts(struct bgp *);
d62a17ae	397	extern void bgp_evpn_map_vni_to_its_rts(struct bgp bgp, struct bgpevpn vpn);
	398	extern void bgp_evpn_unmap_vni_from_its_rts(struct bgp *bgp,
	399	struct bgpevpn *vpn);
	400	extern void bgp_evpn_derive_auto_rt_import(struct bgp *bgp,
	401	struct bgpevpn *vpn);
	402	extern void bgp_evpn_derive_auto_rt_export(struct bgp *bgp,
	403	struct bgpevpn *vpn);
	404	extern void bgp_evpn_derive_auto_rd(struct bgp bgp, struct bgpevpn vpn);
676f83b9	405	extern void bgp_evpn_derive_auto_rd_for_vrf(struct bgp *bgp);
d62a17ae	406	extern struct bgpevpn bgp_evpn_lookup_vni(struct bgp bgp, vni_t vni);
d62a17ae	407	extern struct bgpevpn bgp_evpn_new(struct bgp bgp, vni_t vni,
29c53922 MK	408	struct in_addr originator_ip,
29c53922 MK	409	vrf_id_t tenant_vrf_id);
d62a17ae	410	extern void bgp_evpn_free(struct bgp bgp, struct bgpevpn vpn);
a4168ebc	411	#endif /* _BGP_EVPN_PRIVATE_H */