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Merge pull request #5703 from ton31337/feature/limit_outgoing_prefixes
[mirror_frr.git] / bgpd / bgp_evpn.h
CommitLineData
7ef5a232 1/* E-VPN header for packet handling
896014f4
DL		 2 * Copyright (C) 2016 6WIND
3 *
4 * This file is part of FRRouting.
5 *
6 * FRRouting 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 * FRRouting 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 along
17 * with this program; see the file COPYING; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 */
7ef5a232
PG		 20
21#ifndef _QUAGGA_BGP_EVPN_H
22#define _QUAGGA_BGP_EVPN_H
23
128ea8ab 24#include "vxlan.h"
94c2f693 25#include "bgpd.h"
7ef5a232 26
520d5d76 27#define EVPN_ROUTE_STRLEN 200 /* Must be >> MAC + IPv6 strings. */
bf1061d8 28#define EVPN_AUTORT_VXLAN 0x10000000
520d5d76 29
f920dd6d 30#define EVPN_ENABLED(bgp) (bgp)->advertise_all_vni
94c2f693
MK		 31static inline int is_evpn_enabled(void)
32{
33 struct bgp *bgp = NULL;
34
e2f3a930 35 bgp = bgp_get_evpn();
f920dd6d 36 return bgp ? EVPN_ENABLED(bgp) : 0;
94c2f693
MK		 37}
38
b57ba6d2
MK		 39static inline void vni2label(vni_t vni, mpls_label_t *label)
40{
d7c0a89a 41 uint8_t *tag = (uint8_t *)label;
b57ba6d2
MK		 42
43 tag[0] = (vni >> 16) & 0xFF;
44 tag[1] = (vni >> 8) & 0xFF;
45 tag[2] = vni & 0xFF;
46}
47
48static inline vni_t label2vni(mpls_label_t *label)
49{
d7c0a89a 50 uint8_t *tag = (uint8_t *)label;
b57ba6d2
MK		 51 vni_t vni;
52
d7c0a89a
QY		 53 vni = ((uint32_t)*tag++ << 16);
54 vni |= (uint32_t)*tag++ << 8;
55 vni |= (uint32_t)(*tag & 0xFF);
b57ba6d2
MK		 56
57 return vni;
58}
59
fdf19f06
MK		 60static inline int advertise_type5_routes(struct bgp *bgp_vrf,
61 afi_t afi)
62{
63 if (!bgp_vrf->l3vni)
64 return 0;
65
66 if (afi == AFI_IP &&
154faa50
MK		 67 CHECK_FLAG(bgp_vrf->af_flags[AFI_L2VPN][SAFI_EVPN],
68 BGP_L2VPN_EVPN_ADVERTISE_IPV4_UNICAST))
fdf19f06
MK		 69 return 1;
70
71 if (afi == AFI_IP6 &&
154faa50
MK		 72 CHECK_FLAG(bgp_vrf->af_flags[AFI_L2VPN][SAFI_EVPN],
73 BGP_L2VPN_EVPN_ADVERTISE_IPV6_UNICAST))
fdf19f06
MK		 74 return 1;
75
76 return 0;
77}
78
88493076 79/* Flag if the route's parent is a EVPN route. */
4b7e6066 80static inline int is_route_parent_evpn(struct bgp_path_info *ri)
88493076 81{
4b7e6066 82 struct bgp_path_info *parent_ri;
88493076 83 struct bgp_table *table;
84 struct bgp_node *rn;
85
86 /* If not imported (or doesn't have a parent), bail. */
87 if (ri->sub_type != BGP_ROUTE_IMPORTED ||
88 !ri->extra ||
89 !ri->extra->parent)
90 return 0;
91
08e68f92 92 /* Determine parent recursively */
93 for (parent_ri = ri->extra->parent;
94 parent_ri->extra && parent_ri->extra->parent;
95 parent_ri = parent_ri->extra->parent)
96 ;
97
98 /* See if of family L2VPN/EVPN */
88493076 99 rn = parent_ri->net;
100 if (!rn)
101 return 0;
102 table = bgp_node_table(rn);
103 if (table &&
104 table->afi == AFI_L2VPN &&
105 table->safi == SAFI_EVPN)
106 return 1;
107 return 0;
108}
109
0a2f9ac1 110/* Flag if the route path's family is EVPN. */
111static inline bool is_pi_family_evpn(struct bgp_path_info *pi)
112{
113 return is_pi_family_matching(pi, AFI_L2VPN, SAFI_EVPN);
114}
115
f106e3a7 116/* Flag if the route is injectable into EVPN. This would be either a
117 * non-imported route or a non-EVPN imported route.
118 */
119static inline bool is_route_injectable_into_evpn(struct bgp_path_info *pi)
120{
121 struct bgp_path_info *parent_pi;
122 struct bgp_table *table;
123 struct bgp_node *rn;
124
125 if (pi->sub_type != BGP_ROUTE_IMPORTED ||
126 !pi->extra ||
127 !pi->extra->parent)
128 return true;
129
130 parent_pi = (struct bgp_path_info *)pi->extra->parent;
131 rn = parent_pi->net;
132 if (!rn)
133 return true;
134 table = bgp_node_table(rn);
135 if (table &&
136 table->afi == AFI_L2VPN &&
137 table->safi == SAFI_EVPN)
138 return false;
139 return true;
140}
141
5424b7ba 142extern void bgp_evpn_advertise_type5_route(struct bgp *bgp_vrf,
31310b25 143 struct prefix *p,
996c9314
LB		 144 struct attr *src_attr, afi_t afi,
145 safi_t safi);
146extern void bgp_evpn_withdraw_type5_route(struct bgp *bgp_vrf, struct prefix *p,
5424b7ba 147 afi_t afi, safi_t safi);
053905d2
MK		 148extern void bgp_evpn_withdraw_type5_routes(struct bgp *bgp_vrf, afi_t afi,
149 safi_t safi);
150extern void bgp_evpn_advertise_type5_routes(struct bgp *bgp_vrf, afi_t afi,
151 safi_t safi);
523cafc4 152extern void bgp_evpn_vrf_delete(struct bgp *bgp_vrf);
d62a17ae 153extern void bgp_evpn_handle_router_id_update(struct bgp *bgp, int withdraw);
d7c0a89a 154extern char *bgp_evpn_label2str(mpls_label_t *label, uint32_t num_labels,
b57ba6d2 155 char *buf, int len);
d62a17ae 156extern char *bgp_evpn_route2str(struct prefix_evpn *p, char *buf, int len);
b682f6de 157extern void bgp_evpn_route2json(struct prefix_evpn *p, json_object *json);
d62a17ae 158extern void bgp_evpn_encode_prefix(struct stream *s, struct prefix *p,
996c9314 159 struct prefix_rd *prd, mpls_label_t *label,
d7c0a89a
QY		 160 uint32_t num_labels, struct attr *attr,
161 int addpath_encode, uint32_t addpath_tx_id);
128ea8ab 162extern int bgp_nlri_parse_evpn(struct peer *peer, struct attr *attr,
163 struct bgp_nlri *packet, int withdraw);
d62a17ae 164extern int bgp_evpn_import_route(struct bgp *bgp, afi_t afi, safi_t safi,
4b7e6066 165 struct prefix *p, struct bgp_path_info *ri);
d62a17ae 166extern int bgp_evpn_unimport_route(struct bgp *bgp, afi_t afi, safi_t safi,
4b7e6066 167 struct prefix *p, struct bgp_path_info *ri);
db0e1937 168extern int bgp_filter_evpn_routes_upon_martian_nh_change(struct bgp *bgp);
d62a17ae 169extern int bgp_evpn_local_macip_del(struct bgp *bgp, vni_t vni,
ec0ab544
AK		 170 struct ethaddr *mac, struct ipaddr *ip,
171 int state);
d62a17ae 172extern int bgp_evpn_local_macip_add(struct bgp *bgp, vni_t vni,
173 struct ethaddr *mac, struct ipaddr *ip,
f07e1c99 174 uint8_t flags, uint32_t seq);
523cafc4 175extern int bgp_evpn_local_l3vni_add(vni_t vni, vrf_id_t vrf_id,
176 struct ethaddr *rmac,
14e814ea 177 struct ethaddr *vrr_rmac,
0483af6e 178 struct in_addr originator_ip, int filter,
14e814ea 179 ifindex_t svi_ifindex, bool is_anycast_mac);
523cafc4 180extern int bgp_evpn_local_l3vni_del(vni_t vni, vrf_id_t vrf_id);
d62a17ae 181extern int bgp_evpn_local_vni_del(struct bgp *bgp, vni_t vni);
182extern int bgp_evpn_local_vni_add(struct bgp *bgp, vni_t vni,
29c53922 183 struct in_addr originator_ip,
76d07c7a
AK		 184 vrf_id_t tenant_vrf_id,
185 struct in_addr mcast_grp);
50f74cf1 186extern int bgp_evpn_local_es_add(struct bgp *bgp, esi_t *esi,
187 struct ipaddr *originator_ip);
188extern int bgp_evpn_local_es_del(struct bgp *bgp, esi_t *esi,
189 struct ipaddr *originator_ip);
fd069644 190extern void bgp_evpn_flood_control_change(struct bgp *bgp);
d62a17ae 191extern void bgp_evpn_cleanup_on_disable(struct bgp *bgp);
192extern void bgp_evpn_cleanup(struct bgp *bgp);
193extern void bgp_evpn_init(struct bgp *bgp);
44c69747 194extern int bgp_evpn_get_type5_prefixlen(struct prefix *pfx);
7c312383 195extern bool bgp_evpn_is_prefix_nht_supported(struct prefix *pfx);
5394a276 196extern void update_advertise_vrf_routes(struct bgp *bgp_vrf);
14c1a7bf 197
128ea8ab 198#endif /* _QUAGGA_BGP_EVPN_H */
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