zebra: extract evpn mac functions from zebra_vxlan.c

Move MAC dB specific functions to zebra_evpn_mac.c

Signed-off-by: Pat Ruddy <pat@voltanet.io>

1 files changed, 118 insertions, 0 deletions

diff --git a/zebra/zebra_evpn.h b/zebra/zebra_evpn.h
new file mode 100644
index 000000000..514721828
--- /dev/null
+++ b/zebra/zebra_evpn.h
@@ -0,0 +1,118 @@
+/*
+ * Zebra EVPN Data structures and definitions
+ * These are "internal" to this function.
+ * Copyright (C) 2016, 2017 Cumulus Networks, Inc.
+ * Copyright (C) 2020 Volta Networks.
+ *
+ * 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 _ZEBRA_EVPN_H
+#define _ZEBRA_EVPN_H
+
+#include <zebra.h>
+
+#include "if.h"
+#include "linklist.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct zebra_evpn_t_ zebra_evpn_t;
+typedef struct zebra_vtep_t_ zebra_vtep_t;
+
+RB_HEAD(zebra_es_evi_rb_head, zebra_evpn_es_evi);
+RB_PROTOTYPE(zebra_es_evi_rb_head, zebra_evpn_es_evi, rb_node,
+	     zebra_es_evi_rb_cmp);
+
+/*
+ * VTEP info
+ *
+ * Right now, this just has each remote VTEP's IP address.
+ */
+struct zebra_vtep_t_ {
+	/* Remote IP. */
+	/* NOTE: Can only be IPv4 right now. */
+	struct in_addr vtep_ip;
+	/* Flood mode (one of enum vxlan_flood_control) based on the PMSI
+	 * tunnel type advertised by the remote VTEP
+	 */
+	int flood_control;
+
+	/* Links. */
+	struct zebra_vtep_t_ *next;
+	struct zebra_vtep_t_ *prev;
+};
+
+/*
+ * VNI hash table
+ *
+ * Contains information pertaining to a VNI:
+ * - the list of remote VTEPs (with this VNI)
+ */
+struct zebra_evpn_t_ {
+	/* VNI - key */
+	vni_t vni;
+
+	/* ES flags */
+	uint32_t flags;
+#define ZEVPN_READY_FOR_BGP (1 << 0) /* ready to be sent to BGP */
+
+	/* Flag for advertising gw macip */
+	uint8_t advertise_gw_macip;
+
+	/* Flag for advertising svi macip */
+	uint8_t advertise_svi_macip;
+
+	/* Flag for advertising gw macip */
+	uint8_t advertise_subnet;
+
+	/* Corresponding VxLAN interface. */
+	struct interface *vxlan_if;
+
+	/* List of remote VTEPs */
+	zebra_vtep_t *vteps;
+
+	/* Local IP */
+	struct in_addr local_vtep_ip;
+
+	/* PIM-SM MDT group for BUM flooding */
+	struct in_addr mcast_grp;
+
+	/* tenant VRF, if any */
+	vrf_id_t vrf_id;
+
+	/* List of local or remote MAC */
+	struct hash *mac_table;
+
+	/* List of local or remote neighbors (MAC+IP) */
+	struct hash *neigh_table;
+
+	/* RB tree of ES-EVIs */
+	struct zebra_es_evi_rb_head es_evi_rb_tree;
+
+	/* List of local ESs */
+	struct list *local_es_evi_list;
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /*_ZEBRA_EVPN_H */