From 25b049484fcf9161edb2c19250066b893c38c264 Mon Sep 17 00:00:00 2001
From: Neale Ranns <neale.ranns@cisco.com>
Date: Wed, 4 Apr 2018 09:34:50 -0700
Subject: GBP V2

update the GBP plugin to implement the full NAT feature set of opflex agent

Change-Id: Ic06a039c889445ed0b9087fa1f292634192b0f8d
Signed-off-by: Neale Ranns <neale.ranns@cisco.com>
---
 src/vpp-api/vom/gbp_recirc.hpp | 209 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 209 insertions(+)
 create mode 100644 src/vpp-api/vom/gbp_recirc.hpp

(limited to 'src/vpp-api/vom/gbp_recirc.hpp')

diff --git a/src/vpp-api/vom/gbp_recirc.hpp b/src/vpp-api/vom/gbp_recirc.hpp
new file mode 100644
index 00000000000..fee4f6c2502
--- /dev/null
+++ b/src/vpp-api/vom/gbp_recirc.hpp
@@ -0,0 +1,209 @@
+/*
+ * 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 __VOM_GBP_RECIRC_H__
+#define __VOM_GBP_RECIRC_H__
+
+#include "vom/gbp_endpoint_group.hpp"
+#include "vom/interface.hpp"
+#include "vom/singular_db.hpp"
+
+namespace VOM {
+/**
+ * A recirculation interface for GBP use pre/post NAT
+ */
+class gbp_recirc : public object_base
+{
+public:
+  /**
+   * The key for a GBP recirc interface
+   */
+  typedef interface::key_t key_t;
+
+  struct type_t : public enum_base<type_t>
+  {
+    /**
+     * Internal recirclation interfaces accept per-NAT translation
+     * traffic from the external/NAT EPG and inject into the
+     * private/NAT-inside EPG
+     */
+    const static type_t INTERNAL;
+
+    /**
+     * External recirculation interfaces accept post-NAT translation
+     * traffic from the internal EPG and inject into the
+     * NAT EPG
+     */
+    const static type_t EXTERNAL;
+
+  private:
+    type_t(int v, const std::string s);
+  };
+
+  /**
+   * Construct a GBP recirc
+   */
+  gbp_recirc(const interface& itf,
+             const type_t& type,
+             const gbp_endpoint_group& epg);
+
+  /**
+   * Copy Construct
+   */
+  gbp_recirc(const gbp_recirc& r);
+
+  /**
+   * Destructor
+   */
+  ~gbp_recirc();
+
+  /**
+   * Return the object's key
+   */
+  const key_t key() const;
+
+  /**
+   * comparison operator
+   */
+  bool operator==(const gbp_recirc& bdae) const;
+
+  /**
+   * Return the matching 'singular instance'
+   */
+  std::shared_ptr<gbp_recirc> singular() const;
+
+  /**
+   * Find the instnace of the recirc interface in the OM
+   */
+  static std::shared_ptr<gbp_recirc> find(const key_t& k);
+
+  /**
+   * Dump all bridge_domain-doamin into the stream provided
+   */
+  static void dump(std::ostream& os);
+
+  /**
+   * replay the object to create it in hardware
+   */
+  void replay(void);
+
+  /**
+   * Convert to string for debugging
+   */
+  std::string to_string() const;
+
+  /**
+   * return the recirculation interface's handle
+   */
+  const handle_t& handle() const;
+
+private:
+  /**
+   * Class definition for listeners to OM events
+   */
+  class event_handler : public OM::listener, public inspect::command_handler
+  {
+  public:
+    event_handler();
+    virtual ~event_handler() = default;
+
+    /**
+     * Handle a populate event
+     */
+    void handle_populate(const client_db::key_t& key);
+
+    /**
+     * Handle a replay event
+     */
+    void handle_replay();
+
+    /**
+     * Show the object in the Singular DB
+     */
+    void show(std::ostream& os);
+
+    /**
+     * Get the sortable Id of the listener
+     */
+    dependency_t order() const;
+  };
+
+  /**
+   * event_handler to register with OM
+   */
+  static event_handler m_evh;
+
+  /**
+   * Commit the acculmulated changes into VPP. i.e. to a 'HW" write.
+   */
+  void update(const gbp_recirc& obj);
+
+  /**
+   * Find or add the instnace of the bridge_domain domain in the OM
+   */
+  static std::shared_ptr<gbp_recirc> find_or_add(const gbp_recirc& temp);
+
+  /*
+   * It's the VPPHW class that updates the objects in HW
+   */
+  friend class OM;
+
+  /**
+   * It's the singular_db class that calls replay()
+   */
+  friend class singular_db<key_t, gbp_recirc>;
+
+  /**
+   * Sweep/reap the object if still stale
+   */
+  void sweep(void);
+
+  /**
+   * HW configuration for the result of creating the recirc
+   */
+  HW::item<bool> m_hw;
+
+  /**
+   * The interface the recirc is attached to.
+   */
+  std::shared_ptr<interface> m_itf;
+
+  /**
+   * Is the reicrc for the external (i.e. post-NAT) or internal
+   */
+  type_t m_type;
+
+  /**
+   * The EPG the recirc is in
+   */
+  std::shared_ptr<gbp_endpoint_group> m_epg;
+
+  /**
+   * A map of all bridge_domains
+   */
+  static singular_db<key_t, gbp_recirc> m_db;
+};
+
+}; // namespace VOM
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "mozilla")
+ * End:
+ */
+
+#endif
-- 
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