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When doing symmetric routing, EVPN type-2 (MACIP) routes need to be advertised with two labels (VNIs) the first being the L2 VNI (identifying the VLAN) and the second being the L3 VNI (identifying the VRF). The receive processing needs to handle one or two labels too. Ticket: CM-18489 Review: CCR-6949 Testing: manual and bgp/evpn/mpls smoke Signed-off-by: Vivek Venkatraman <vivek@cumulusnetworks.com>
104 lines
3.7 KiB
C
104 lines
3.7 KiB
C
/* E-VPN header for packet handling
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* Copyright (C) 2016 6WIND
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*
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* This file is part of FRRouting.
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*
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* FRRouting is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* FRRouting is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; see the file COPYING; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _QUAGGA_BGP_EVPN_H
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#define _QUAGGA_BGP_EVPN_H
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#include "vxlan.h"
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#include "bgpd.h"
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#define EVPN_ROUTE_STRLEN 200 /* Must be >> MAC + IPv6 strings. */
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static inline int is_evpn_enabled(void)
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{
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struct bgp *bgp = NULL;
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bgp = bgp_get_default();
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return bgp ? bgp->advertise_all_vni : 0;
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}
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static inline void vni2label(vni_t vni, mpls_label_t *label)
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{
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u_char *tag = (u_char *)label;
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tag[0] = (vni >> 16) & 0xFF;
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tag[1] = (vni >> 8) & 0xFF;
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tag[2] = vni & 0xFF;
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}
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static inline vni_t label2vni(mpls_label_t *label)
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{
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u_char *tag = (u_char *)label;
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vni_t vni;
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vni = ((u_int32_t)*tag++ << 16);
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vni |= (u_int32_t)*tag++ << 8;
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vni |= (u_int32_t)(*tag & 0xFF);
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return vni;
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}
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extern void bgp_evpn_advertise_type5_route(struct bgp *bgp_vrf,
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struct bgp_node *rn,
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afi_t afi, safi_t safi);
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extern void bgp_evpn_withdraw_type5_route(struct bgp *bgp_vrf,
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struct bgp_node *rn,
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afi_t afi, safi_t safi);
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extern void bgp_evpn_withdraw_type5_routes(struct bgp *bgp_vrf, afi_t afi,
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safi_t safi);
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extern void bgp_evpn_advertise_type5_routes(struct bgp *bgp_vrf, afi_t afi,
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safi_t safi);
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extern void bgp_evpn_vrf_delete(struct bgp *bgp_vrf);
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extern void bgp_evpn_handle_router_id_update(struct bgp *bgp, int withdraw);
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extern char *bgp_evpn_label2str(mpls_label_t *label, u_int32_t num_labels,
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char *buf, int len);
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extern char *bgp_evpn_route2str(struct prefix_evpn *p, char *buf, int len);
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extern void bgp_evpn_route2json(struct prefix_evpn *p, json_object *json);
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extern void bgp_evpn_encode_prefix(struct stream *s, struct prefix *p,
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struct prefix_rd *prd,
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mpls_label_t *label, u_int32_t num_labels,
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struct attr *attr, int addpath_encode,
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u_int32_t addpath_tx_id);
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extern int bgp_nlri_parse_evpn(struct peer *peer, struct attr *attr,
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struct bgp_nlri *packet, int withdraw);
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extern int bgp_evpn_import_route(struct bgp *bgp, afi_t afi, safi_t safi,
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struct prefix *p, struct bgp_info *ri);
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extern int bgp_evpn_unimport_route(struct bgp *bgp, afi_t afi, safi_t safi,
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struct prefix *p, struct bgp_info *ri);
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extern int bgp_filter_evpn_routes_upon_martian_nh_change(struct bgp *bgp);
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extern int bgp_evpn_local_macip_del(struct bgp *bgp, vni_t vni,
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struct ethaddr *mac, struct ipaddr *ip);
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extern int bgp_evpn_local_macip_add(struct bgp *bgp, vni_t vni,
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struct ethaddr *mac, struct ipaddr *ip,
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u_char flags);
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extern int bgp_evpn_local_l3vni_add(vni_t vni, vrf_id_t vrf_id,
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struct ethaddr *rmac,
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struct in_addr originator_ip);
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extern int bgp_evpn_local_l3vni_del(vni_t vni, vrf_id_t vrf_id);
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extern int bgp_evpn_local_vni_del(struct bgp *bgp, vni_t vni);
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extern int bgp_evpn_local_vni_add(struct bgp *bgp, vni_t vni,
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struct in_addr originator_ip,
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vrf_id_t tenant_vrf_id);
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extern void bgp_evpn_cleanup_on_disable(struct bgp *bgp);
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extern void bgp_evpn_cleanup(struct bgp *bgp);
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extern void bgp_evpn_init(struct bgp *bgp);
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#endif /* _QUAGGA_BGP_EVPN_H */
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