Adding upstream version 9.1.upstream/9.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 302 insertions, 0 deletions

diff --git a/bgpd/rfapi/bgp_rfapi_cfg.h b/bgpd/rfapi/bgp_rfapi_cfg.h
new file mode 100644
index 0000000..77549ad
--- /dev/null
+++ b/bgpd/rfapi/bgp_rfapi_cfg.h
@@ -0,0 +1,302 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *
+ * Copyright 2009-2016, LabN Consulting, L.L.C.
+ *
+ */
+
+#ifndef _QUAGGA_BGP_RFAPI_CFG_H
+#define _QUAGGA_BGP_RFAPI_CFG_H
+
+#include "lib/table.h"
+#include "lib/routemap.h"
+
+#ifdef ENABLE_BGP_VNC
+#include "rfapi.h"
+
+struct rfapi_l2_group_cfg {
+	char *name;
+	uint32_t logical_net_id;
+	struct list *labels; /* list of uint32_t */
+	struct ecommunity *rt_import_list;
+	struct ecommunity *rt_export_list;
+	void *rfp_cfg; /* rfp owned group config */
+
+	QOBJ_FIELDS;
+};
+DECLARE_QOBJ_TYPE(rfapi_l2_group_cfg);
+
+typedef enum {
+	RFAPI_GROUP_CFG_NVE = 1,
+	RFAPI_GROUP_CFG_VRF,
+	RFAPI_GROUP_CFG_L2,
+	RFAPI_GROUP_CFG_MAX
+} rfapi_group_cfg_type_t;
+
+struct rfapi_nve_group_cfg {
+	struct agg_node *vn_node; /* backref */
+	struct agg_node *un_node; /* backref */
+
+	rfapi_group_cfg_type_t type; /* NVE|VPN */
+	char *name;		     /* unique by type! */
+	struct prefix vn_prefix;
+	struct prefix un_prefix;
+
+	struct prefix_rd rd;
+	uint8_t l2rd; /* 0 = VN addr LSB */
+	uint32_t response_lifetime;
+	uint32_t flags;
+#define RFAPI_RFG_RESPONSE_LIFETIME	0x01 /* bits */
+#define RFAPI_RFG_L2RD			0x02
+#define RFAPI_RFG_VPN_NH_SELF		0x04
+	struct ecommunity *rt_import_list;
+	struct ecommunity *rt_export_list;
+	struct rfapi_import_table *rfapi_import_table;
+
+	void *rfp_cfg; /* rfp owned group config */
+	/*
+	 * List of NVE descriptors that are assigned to this NVE group
+	 *
+	 * Currently (Mar 2010) this list is used only by the route
+	 * export code to generate per-NVE nexthops for each route.
+	 *
+	 * The nve descriptors listed here have pointers back to
+	 * this nve group config structure to enable them to delete
+	 * their own list entries when they are closed. Consequently,
+	 * if an instance of this nve group config structure is deleted,
+	 * we must first set the nve descriptor references to it to NULL.
+	 */
+	struct list *nves;
+
+	/*
+	 * Route filtering
+	 *
+	 * Prefix lists are segregated by afi (part of the base plist code)
+	 * Route-maps are not segregated
+	 */
+	char *plist_export_bgp_name[AFI_MAX];
+	struct prefix_list *plist_export_bgp[AFI_MAX];
+
+	char *plist_export_zebra_name[AFI_MAX];
+	struct prefix_list *plist_export_zebra[AFI_MAX];
+
+	char *plist_redist_name[ZEBRA_ROUTE_MAX][AFI_MAX];
+	struct prefix_list *plist_redist[ZEBRA_ROUTE_MAX][AFI_MAX];
+
+	char *routemap_export_bgp_name;
+	struct route_map *routemap_export_bgp;
+
+	char *routemap_export_zebra_name;
+	struct route_map *routemap_export_zebra;
+
+	char *routemap_redist_name[ZEBRA_ROUTE_MAX];
+	struct route_map *routemap_redist[ZEBRA_ROUTE_MAX];
+
+	/* for VRF type groups */
+	uint32_t label;
+	struct rfapi_descriptor *rfd;
+	QOBJ_FIELDS;
+};
+DECLARE_QOBJ_TYPE(rfapi_nve_group_cfg);
+
+struct rfapi_rfg_name {
+	struct rfapi_nve_group_cfg *rfg;
+	char *name;
+};
+
+typedef enum {
+	VNC_REDIST_MODE_PLAIN = 0, /* 0 = default */
+	VNC_REDIST_MODE_RFG,
+	VNC_REDIST_MODE_RESOLVE_NVE
+} vnc_redist_mode_t;
+
+struct rfapi_cfg {
+	struct prefix_rd default_rd;
+	uint8_t default_l2rd;
+	struct ecommunity *default_rt_import_list;
+	struct ecommunity *default_rt_export_list;
+	uint32_t default_response_lifetime;
+#define BGP_VNC_DEFAULT_RESPONSE_LIFETIME_DEFAULT 3600
+	void *default_rfp_cfg; /* rfp owned group config */
+
+	struct list *l2_groups; /* rfapi_l2_group_cfg list */
+	/* three views into the same collection of rfapi_nve_group_cfg */
+	struct list *nve_groups_sequential;
+	struct agg_table *nve_groups_vn[AFI_MAX];
+	struct agg_table *nve_groups_un[AFI_MAX];
+
+	/*
+	 * For Single VRF export to ordinary routing protocols. This is
+	 * the nve-group that the ordinary protocols belong to. We use it
+	 * to set the RD when sending unicast Zebra routes to VNC
+	 */
+	uint8_t redist[AFI_MAX][ZEBRA_ROUTE_MAX];
+	uint32_t redist_lifetime;
+	vnc_redist_mode_t redist_mode;
+
+	/*
+	 * view name of BGP unicast instance that holds
+	 * exterior routes
+	 */
+	char *redist_bgp_exterior_view_name;
+	struct bgp *redist_bgp_exterior_view;
+
+	/*
+	 * nve group for redistribution of routes from zebra to VNC
+	 * (which is probably not useful for production networks)
+	 */
+	char *rfg_redist_name;
+	struct rfapi_nve_group_cfg *rfg_redist;
+
+	/*
+	 * List of NVE groups on whose behalf we will export VNC
+	 * routes to zebra. ((NB: it's actually a list of <struct
+	 * rfapi_rfg_name>)
+	 * This list is used when BGP_VNC_CONFIG_EXPORT_ZEBRA_MODE_BITS is
+	 * BGP_VNC_CONFIG_EXPORT_ZEBRA_MODE_GRP
+	 */
+	struct list *rfg_export_zebra_l;
+
+	/*
+	 * List of NVE groups on whose behalf we will export VNC
+	 * routes directly to the bgp unicast RIB. (NB: it's actually
+	 * a list of <struct rfapi_rfg_name>)
+	 * This list is used when BGP_VNC_CONFIG_EXPORT_BGP_MODE_BITS is
+	 * BGP_VNC_CONFIG_EXPORT_BGP_MODE_GRP
+	 */
+	struct list *rfg_export_direct_bgp_l;
+
+	/*
+	 * Exported Route filtering
+	 *
+	 * Prefix lists are segregated by afi (part of the base plist code)
+	 * Route-maps are not segregated
+	 */
+	char *plist_export_bgp_name[AFI_MAX];
+	struct prefix_list *plist_export_bgp[AFI_MAX];
+
+	char *plist_export_zebra_name[AFI_MAX];
+	struct prefix_list *plist_export_zebra[AFI_MAX];
+
+	char *routemap_export_bgp_name;
+	struct route_map *routemap_export_bgp;
+
+	char *routemap_export_zebra_name;
+	struct route_map *routemap_export_zebra;
+
+	/*
+	 * Redistributed route filtering (routes from other
+	 * protocols into VNC)
+	 */
+	char *plist_redist_name[ZEBRA_ROUTE_MAX][AFI_MAX];
+	struct prefix_list *plist_redist[ZEBRA_ROUTE_MAX][AFI_MAX];
+
+	char *routemap_redist_name[ZEBRA_ROUTE_MAX];
+	struct route_map *routemap_redist[ZEBRA_ROUTE_MAX];
+
+	/*
+	 * For importing bgp unicast routes to VNC, we encode the CE
+	 * (route nexthop) in a Route Origin extended community. The
+	 * local part (16-bit) is user-configurable.
+	 */
+	uint16_t resolve_nve_roo_local_admin;
+#define BGP_VNC_CONFIG_RESOLVE_NVE_ROO_LOCAL_ADMIN_DEFAULT 5226
+
+	uint32_t flags;
+#define BGP_VNC_CONFIG_ADV_UN_METHOD_ENCAP	0x00000001
+#define BGP_VNC_CONFIG_CALLBACK_DISABLE		0x00000002
+#define BGP_VNC_CONFIG_RESPONSE_REMOVAL_DISABLE	0x00000004
+
+#define BGP_VNC_CONFIG_EXPORT_BGP_MODE_BITS	0x000000f0
+#define BGP_VNC_CONFIG_EXPORT_ZEBRA_MODE_BITS	0x00000f00
+
+#define BGP_VNC_CONFIG_EXPORT_BGP_MODE_NONE	0x00000000
+#define BGP_VNC_CONFIG_EXPORT_BGP_MODE_GRP	0x00000010
+#define BGP_VNC_CONFIG_EXPORT_BGP_MODE_RH	0x00000020      /* registerd nve */
+#define BGP_VNC_CONFIG_EXPORT_BGP_MODE_CE	0x00000040
+
+#define BGP_VNC_CONFIG_EXPORT_ZEBRA_MODE_NONE	0x00000000
+#define BGP_VNC_CONFIG_EXPORT_ZEBRA_MODE_GRP	0x00000100
+#define BGP_VNC_CONFIG_EXPORT_ZEBRA_MODE_RH	0x00000200
+
+#define BGP_VNC_CONFIG_FILTER_SELF_FROM_RSP	0x00001000
+#define BGP_VNC_CONFIG_L2RD			0x00002000
+
+/* Use new NVE RIB to filter callback routes */
+/* Filter querying NVE's registrations from responses */
+/* Default to updated-responses off */
+/* Default to removal-responses off */
+#define BGP_VNC_CONFIG_FLAGS_DEFAULT                                           \
+	(BGP_VNC_CONFIG_FILTER_SELF_FROM_RSP | BGP_VNC_CONFIG_CALLBACK_DISABLE \
+	 | BGP_VNC_CONFIG_RESPONSE_REMOVAL_DISABLE)
+
+	struct rfapi_rfp_cfg rfp_cfg; /* rfp related configuration  */
+};
+
+#define VNC_EXPORT_ZEBRA_GRP_ENABLED(hc)                                       \
+	(((hc)->flags & BGP_VNC_CONFIG_EXPORT_ZEBRA_MODE_BITS)                 \
+	 == BGP_VNC_CONFIG_EXPORT_ZEBRA_MODE_GRP)
+
+#define VNC_EXPORT_ZEBRA_RH_ENABLED(hc)                                        \
+	(((hc)->flags & BGP_VNC_CONFIG_EXPORT_ZEBRA_MODE_BITS)                 \
+	 == BGP_VNC_CONFIG_EXPORT_ZEBRA_MODE_RH)
+
+#define VNC_EXPORT_BGP_GRP_ENABLED(hc)                                         \
+	(((hc)->flags & BGP_VNC_CONFIG_EXPORT_BGP_MODE_BITS)                   \
+	 == BGP_VNC_CONFIG_EXPORT_BGP_MODE_GRP)
+
+#define VNC_EXPORT_BGP_RH_ENABLED(hc)                                          \
+	(((hc)->flags & BGP_VNC_CONFIG_EXPORT_BGP_MODE_BITS)                   \
+	 == BGP_VNC_CONFIG_EXPORT_BGP_MODE_RH)
+
+#define VNC_EXPORT_BGP_CE_ENABLED(hc)                                          \
+	(((hc)->flags & BGP_VNC_CONFIG_EXPORT_BGP_MODE_BITS)                   \
+	 == BGP_VNC_CONFIG_EXPORT_BGP_MODE_CE)
+
+
+void bgp_rfapi_cfg_init(void);
+
+struct rfapi_cfg *bgp_rfapi_cfg_new(struct rfapi_rfp_cfg *cfg);
+
+void bgp_rfapi_cfg_destroy(struct bgp *bgp, struct rfapi_cfg *h);
+
+int bgp_rfapi_cfg_write(struct vty *vty, struct bgp *bgp);
+
+extern int bgp_rfapi_is_vnc_configured(struct bgp *bgp);
+
+extern void nve_group_to_nve_list(struct rfapi_nve_group_cfg *rfg,
+				  struct list **nves,
+				  uint8_t family); /* AF_INET, AF_INET6 */
+
+struct rfapi_nve_group_cfg *bgp_rfapi_cfg_match_group(struct rfapi_cfg *hc,
+						      struct prefix *vn,
+						      struct prefix *un);
+
+struct rfapi_nve_group_cfg *
+bgp_rfapi_cfg_match_byname(struct bgp *bgp, const char *name,
+			   rfapi_group_cfg_type_t type); /* _MAX = any */
+
+extern void vnc_prefix_list_update(struct bgp *bgp);
+
+extern void vnc_routemap_update(struct bgp *bgp, const char *unused);
+
+extern void bgp_rfapi_show_summary(struct bgp *bgp, struct vty *vty);
+
+extern struct rfapi_cfg *bgp_rfapi_get_config(struct bgp *bgp);
+
+extern struct rfapi_l2_group_cfg *
+bgp_rfapi_get_group_by_lni_label(struct bgp *bgp, uint32_t logical_net_id,
+				 uint32_t label);
+
+extern struct ecommunity *
+bgp_rfapi_get_ecommunity_by_lni_label(struct bgp *bgp, uint32_t is_import,
+				      uint32_t logical_net_id,
+				      uint32_t label); /* note, 20bit label! */
+
+extern struct list *
+bgp_rfapi_get_labellist_by_lni_label(struct bgp *bgp, uint32_t logical_net_id,
+				     uint32_t label); /* note, 20bit label! */
+
+#endif /* ENABLE_BGP_VNC */
+
+#endif /* _QUAGGA_BGP_RFAPI_CFG_H */