GBP plugin

Group Base Policy (GBP) defines:
 - endpoints: typically a VM or container that is connected to the
              virtual switch/router (i.e. to VPP)
 - endpoint-group: (EPG) a collection of endpoints
 - policy: rules determining which traffic can pass between EPGs a.k.a
            a 'contract'

Here, policy is implemented via an ACL.
EPG classification for transit packets is determined by:
 - source EPG: from the packet's input interface
 - destination EPG: from the packet's destination IP address.

Change-Id: I7b983844826b5fc3d49e21353ebda9df9b224e25
Signed-off-by: Neale Ranns <neale.ranns@cisco.com>

1 files changed, 145 insertions, 0 deletions

diff --git a/src/vpp-api/vom/gbp_contract_cmds.cpp b/src/vpp-api/vom/gbp_contract_cmds.cpp
new file mode 100644
index 00000000000..a98dc62bc59
--- /dev/null
+++ b/src/vpp-api/vom/gbp_contract_cmds.cpp
@@ -0,0 +1,145 @@
+/*
+ * Copyright (c) 2017 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.
+ */
+
+#include "vom/gbp_contract_cmds.hpp"
+
+namespace VOM {
+namespace gbp_contract_cmds {
+
+create_cmd::create_cmd(HW::item<bool>& item,
+                       epg_id_t src_epg_id,
+                       epg_id_t dst_epg_id,
+                       const handle_t& acl)
+  : rpc_cmd(item)
+  , m_src_epg_id(src_epg_id)
+  , m_dst_epg_id(dst_epg_id)
+  , m_acl(acl)
+{
+}
+
+bool
+create_cmd::operator==(const create_cmd& other) const
+{
+  return ((m_acl == other.m_acl) && (m_src_epg_id == other.m_src_epg_id) &&
+          (m_dst_epg_id == other.m_dst_epg_id));
+}
+
+rc_t
+create_cmd::issue(connection& con)
+{
+  msg_t req(con.ctx(), std::ref(*this));
+
+  auto& payload = req.get_request().get_payload();
+  payload.is_add = 1;
+  payload.contract.acl_index = m_acl.value();
+  payload.contract.src_epg = m_src_epg_id;
+  payload.contract.dst_epg = m_dst_epg_id;
+
+  VAPI_CALL(req.execute());
+
+  m_hw_item.set(wait());
+
+  return rc_t::OK;
+}
+
+std::string
+create_cmd::to_string() const
+{
+  std::ostringstream s;
+  s << "gbp-contract-create: " << m_hw_item.to_string()
+    << " src-epg-id:" << m_src_epg_id << " dst-epg-id:" << m_dst_epg_id
+    << " acl:" << m_acl;
+
+  return (s.str());
+}
+
+delete_cmd::delete_cmd(HW::item<bool>& item,
+                       epg_id_t src_epg_id,
+                       epg_id_t dst_epg_id)
+  : rpc_cmd(item)
+  , m_src_epg_id(src_epg_id)
+  , m_dst_epg_id(dst_epg_id)
+{
+}
+
+bool
+delete_cmd::operator==(const delete_cmd& other) const
+{
+  return ((m_src_epg_id == other.m_src_epg_id) &&
+          (m_dst_epg_id == other.m_dst_epg_id));
+}
+
+rc_t
+delete_cmd::issue(connection& con)
+{
+  msg_t req(con.ctx(), std::ref(*this));
+
+  auto& payload = req.get_request().get_payload();
+  payload.is_add = 0;
+  payload.contract.acl_index = ~0;
+  payload.contract.src_epg = m_src_epg_id;
+  payload.contract.dst_epg = m_dst_epg_id;
+
+  VAPI_CALL(req.execute());
+
+  m_hw_item.set(wait());
+
+  return rc_t::OK;
+}
+
+std::string
+delete_cmd::to_string() const
+{
+  std::ostringstream s;
+  s << "gbp-contract-delete: " << m_hw_item.to_string()
+    << " src-epg-id:" << m_src_epg_id << " dst-epg-id:" << m_dst_epg_id;
+
+  return (s.str());
+}
+
+bool
+dump_cmd::operator==(const dump_cmd& other) const
+{
+  return (true);
+}
+
+rc_t
+dump_cmd::issue(connection& con)
+{
+  m_dump.reset(new msg_t(con.ctx(), std::ref(*this)));
+
+  VAPI_CALL(m_dump->execute());
+
+  wait();
+
+  return rc_t::OK;
+}
+
+std::string
+dump_cmd::to_string() const
+{
+  return ("gbp-contract-dump");
+}
+
+}; // namespace gbp_contract_cmds
+}; // namespace VOM
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "mozilla")
+ * End:
+ */