--- /dev/null
+/*
+ * Copyright (c) 2018 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __GBP_ENDPOINT_H__
+#define __GBP_ENDPOINT_H__
+
+#include <plugins/gbp/gbp_types.h>
+#include <plugins/gbp/gbp_itf.h>
+#include <vnet/ip/ip.h>
+#include <vnet/ethernet/mac_address.h>
+
+#include <vppinfra/bihash_16_8.h>
+#include <vppinfra/bihash_template.h>
+#include <vppinfra/bihash_24_8.h>
+#include <vppinfra/bihash_template.h>
+
+/**
+ * Flags for each endpoint
+ */
+typedef enum gbp_endpoint_attr_t_
+{
+ GBP_ENDPOINT_ATTR_FIRST = 0,
+ GBP_ENDPOINT_ATTR_BOUNCE = GBP_ENDPOINT_ATTR_FIRST,
+ GBP_ENDPOINT_ATTR_REMOTE,
+ GBP_ENDPOINT_ATTR_LEARNT,
+ GBP_ENDPOINT_ATTR_EXTERNAL,
+ GBP_ENDPOINT_ATTR_LAST,
+} gbp_endpoint_attr_t;
+
+typedef enum gbp_endpoint_flags_t_
+{
+ GBP_ENDPOINT_FLAG_NONE = 0,
+ GBP_ENDPOINT_FLAG_BOUNCE = (1 << GBP_ENDPOINT_ATTR_BOUNCE),
+ GBP_ENDPOINT_FLAG_REMOTE = (1 << GBP_ENDPOINT_ATTR_REMOTE),
+ GBP_ENDPOINT_FLAG_LEARNT = (1 << GBP_ENDPOINT_ATTR_LEARNT),
+ GBP_ENDPOINT_FLAG_EXTERNAL = (1 << GBP_ENDPOINT_ATTR_EXTERNAL),
+} gbp_endpoint_flags_t;
+
+#define GBP_ENDPOINT_ATTR_NAMES { \
+ [GBP_ENDPOINT_ATTR_BOUNCE] = "bounce", \
+ [GBP_ENDPOINT_ATTR_REMOTE] = "remote", \
+ [GBP_ENDPOINT_ATTR_LEARNT] = "learnt", \
+ [GBP_ENDPOINT_ATTR_EXTERNAL] = "external", \
+}
+
+extern u8 *format_gbp_endpoint_flags (u8 * s, va_list * args);
+
+/**
+ * Sources of Endpoints in priority order. The best (lowest value) source
+ * provides the forwarding information.
+ * Data-plane takes preference because the CP data is not always complete,
+ * it may not have the sclass.
+ */
+#define foreach_gbp_endpoint_src \
+ _(DP, "data-plane") \
+ _(CP, "control-plane") \
+ _(RR, "recursive-resolution")
+
+typedef enum gbp_endpoint_src_t_
+{
+#define _(v,s) GBP_ENDPOINT_SRC_##v,
+ foreach_gbp_endpoint_src
+#undef _
+} gbp_endpoint_src_t;
+
+#define GBP_ENDPOINT_SRC_MAX (GBP_ENDPOINT_SRC_RR+1)
+
+extern u8 *format_gbp_endpoint_src (u8 * s, va_list * args);
+
+/**
+ * This is the identity of an endpoint, as such it is information
+ * about an endpoint that is idempotent.
+ * The ID is used to add the EP into the various data-bases for retrieval.
+ */
+typedef struct gbp_endpoint_key_t_
+{
+ /**
+ * A vector of ip addresses that belong to the endpoint.
+ * Together with the route EPG's RD this forms the EP's L3 key
+ */
+ fib_prefix_t *gek_ips;
+
+ /**
+ * MAC address of the endpoint.
+ * Together with the route EPG's BD this forms the EP's L2 key
+ */
+ mac_address_t gek_mac;
+
+ /**
+ * Index of the Bridge-Domain
+ */
+ index_t gek_gbd;
+
+ /**
+ * Index of the Route-Domain
+ */
+ index_t gek_grd;
+} gbp_endpoint_key_t;
+
+/**
+ * Information about the location of the endpoint provided by a source
+ * of endpoints
+ */
+typedef struct gbp_endpoint_loc_t_
+{
+ /**
+ * The source providing this location information
+ */
+ gbp_endpoint_src_t gel_src;
+
+ /**
+ * The interface on which the EP is connected
+ */
+ gbp_itf_hdl_t gel_itf;
+
+ /**
+ * Endpoint flags
+ */
+ gbp_endpoint_flags_t gel_flags;
+
+ /**
+ * Endpoint Group.
+ */
+ index_t gel_epg;
+
+ /**
+ * number of times this source has locked this
+ */
+ u32 gel_locks;
+
+ /**
+ * Tunnel info for remote endpoints
+ */
+ struct
+ {
+ u32 gel_parent_sw_if_index;
+ ip46_address_t gel_src;
+ ip46_address_t gel_dst;
+ } tun;
+} gbp_endpoint_loc_t;
+
+/**
+ * And endpoints current forwarding state
+ */
+typedef struct gbp_endpoint_fwd_t_
+{
+ /**
+ * The interface on which the EP is connected
+ */
+ gbp_itf_hdl_t gef_itf;
+
+ /**
+ * The L3 adj, if created
+ */
+ index_t *gef_adjs;
+
+ /**
+ * Endpoint Group's sclass. cached for fast DP access.
+ */
+ sclass_t gef_sclass;
+
+ /**
+ * FIB index the EP is in
+ */
+ u32 gef_fib_index;
+
+ gbp_endpoint_flags_t gef_flags;
+} gbp_endpoint_fwd_t;
+
+/**
+ * A Group Based Policy Endpoint.
+ * This is typically a VM or container. If the endpoint is local (i.e. on
+ * the same compute node as VPP) then there is one interface per-endpoint.
+ * If the EP is remote,e.g. reachable over a [vxlan] tunnel, then there
+ * will be multiple EPs reachable over the tunnel and they can be distinguished
+ * via either their MAC or IP Address[es].
+ */
+typedef struct gbp_endpoint_t_
+{
+ /**
+ * A FIB node that allows the tracking of children.
+ */
+ fib_node_t ge_node;
+
+ /**
+ * The key/ID of this EP
+ */
+ gbp_endpoint_key_t ge_key;
+
+ /**
+ * Location information provided by the various sources.
+ * These are sorted based on source priority.
+ */
+ gbp_endpoint_loc_t *ge_locs;
+
+ gbp_endpoint_fwd_t ge_fwd;
+
+ /**
+ * The last time a packet from seen from this end point
+ */
+ f64 ge_last_time;
+} gbp_endpoint_t;
+
+extern u8 *format_gbp_endpoint (u8 * s, va_list * args);
+
+/**
+ * GBP Endpoint Databases
+ */
+typedef struct gbp_ep_by_ip_itf_db_t_
+{
+ index_t *ged_by_sw_if_index;
+ clib_bihash_24_8_t ged_by_ip_rd;
+ clib_bihash_16_8_t ged_by_mac_bd;
+} gbp_ep_db_t;
+
+extern int gbp_endpoint_update_and_lock (gbp_endpoint_src_t src,
+ u32 sw_if_index,
+ const ip46_address_t * ip,
+ const mac_address_t * mac,
+ index_t gbd, index_t grd,
+ sclass_t sclass,
+ gbp_endpoint_flags_t flags,
+ const ip46_address_t * tun_src,
+ const ip46_address_t * tun_dst,
+ u32 * handle);
+extern void gbp_endpoint_unlock (gbp_endpoint_src_t src, index_t gbpei);
+extern u32 gbp_endpoint_child_add (index_t gei,
+ fib_node_type_t type,
+ fib_node_index_t index);
+extern void gbp_endpoint_child_remove (index_t gei, u32 sibling);
+
+typedef walk_rc_t (*gbp_endpoint_cb_t) (index_t gbpei, void *ctx);
+extern void gbp_endpoint_walk (gbp_endpoint_cb_t cb, void *ctx);
+extern void gbp_endpoint_scan (vlib_main_t * vm);
+extern int gbp_endpoint_is_remote (const gbp_endpoint_t * ge);
+extern int gbp_endpoint_is_local (const gbp_endpoint_t * ge);
+extern int gbp_endpoint_is_external (const gbp_endpoint_t * ge);
+extern int gbp_endpoint_is_learnt (const gbp_endpoint_t * ge);
+
+
+extern void gbp_endpoint_flush (gbp_endpoint_src_t src, u32 sw_if_index);
+
+/**
+ * DP functions and databases
+ */
+extern gbp_ep_db_t gbp_ep_db;
+extern gbp_endpoint_t *gbp_endpoint_pool;
+
+/**
+ * Get the endpoint from a port/interface
+ */
+always_inline gbp_endpoint_t *
+gbp_endpoint_get (index_t gbpei)
+{
+ return (pool_elt_at_index (gbp_endpoint_pool, gbpei));
+}
+
+static_always_inline void
+gbp_endpoint_mk_key_mac (const u8 * mac,
+ u32 bd_index, clib_bihash_kv_16_8_t * key)
+{
+ key->key[0] = ethernet_mac_address_u64 (mac);
+ key->key[1] = bd_index;
+}
+
+static_always_inline gbp_endpoint_t *
+gbp_endpoint_find_mac (const u8 * mac, u32 bd_index)
+{
+ clib_bihash_kv_16_8_t key, value;
+ int rv;
+
+ gbp_endpoint_mk_key_mac (mac, bd_index, &key);
+
+ rv = clib_bihash_search_16_8 (&gbp_ep_db.ged_by_mac_bd, &key, &value);
+
+ if (0 != rv)
+ return NULL;
+
+ return (gbp_endpoint_get (value.value));
+}
+
+static_always_inline void
+gbp_endpoint_mk_key_ip (const ip46_address_t * ip,
+ u32 fib_index, clib_bihash_kv_24_8_t * key)
+{
+ key->key[0] = ip->as_u64[0];
+ key->key[1] = ip->as_u64[1];
+ key->key[2] = fib_index;
+}
+
+static_always_inline void
+gbp_endpoint_mk_key_ip4 (const ip4_address_t * ip,
+ u32 fib_index, clib_bihash_kv_24_8_t * key)
+{
+ const ip46_address_t a = {
+ .ip4 = *ip,
+ };
+ gbp_endpoint_mk_key_ip (&a, fib_index, key);
+}
+
+static_always_inline gbp_endpoint_t *
+gbp_endpoint_find_ip4 (const ip4_address_t * ip, u32 fib_index)
+{
+ clib_bihash_kv_24_8_t key, value;
+ int rv;
+
+ gbp_endpoint_mk_key_ip4 (ip, fib_index, &key);
+
+ rv = clib_bihash_search_24_8 (&gbp_ep_db.ged_by_ip_rd, &key, &value);
+
+ if (0 != rv)
+ return NULL;
+
+ return (gbp_endpoint_get (value.value));
+}
+
+static_always_inline void
+gbp_endpoint_mk_key_ip6 (const ip6_address_t * ip,
+ u32 fib_index, clib_bihash_kv_24_8_t * key)
+{
+ key->key[0] = ip->as_u64[0];
+ key->key[1] = ip->as_u64[1];
+ key->key[2] = fib_index;
+}
+
+static_always_inline gbp_endpoint_t *
+gbp_endpoint_find_ip6 (const ip6_address_t * ip, u32 fib_index)
+{
+ clib_bihash_kv_24_8_t key, value;
+ int rv;
+
+ gbp_endpoint_mk_key_ip6 (ip, fib_index, &key);
+
+ rv = clib_bihash_search_24_8 (&gbp_ep_db.ged_by_ip_rd, &key, &value);
+
+ if (0 != rv)
+ return NULL;
+
+ return (gbp_endpoint_get (value.value));
+}
+
+static_always_inline gbp_endpoint_t *
+gbp_endpoint_find_itf (u32 sw_if_index)
+{
+ index_t gei;
+
+ gei = gbp_ep_db.ged_by_sw_if_index[sw_if_index];
+
+ if (INDEX_INVALID != gei)
+ return (gbp_endpoint_get (gei));
+
+ return (NULL);
+}
+
+
+#endif
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
Code Review / vpp.git / blobdiff