VPP Object Model (VOM)

The VOM is a C++ library for use by clients/agents of VPP for programming
state. It uses the binary APIs to do so. Various other common client side
functions are also provided. Please see om.hpp for a more detailed description.

Change-Id: Ib756bfe99817093815a9e26ccf464aa5583fc523
Signed-off-by: Neale Ranns <neale.ranns@cisco.com>
Co-authored-by: Mohsin Kazmi <sykazmi@cisco.com>

1 files changed, 90 insertions, 0 deletions

diff --git a/src/vpp-api/vom/interface_factory.cpp b/src/vpp-api/vom/interface_factory.cpp
new file mode 100644
index 00000000000..aac968c1b3a
--- /dev/null
+++ b/src/vpp-api/vom/interface_factory.cpp
@@ -0,0 +1,90 @@
+/*
+ * 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 <boost/algorithm/string.hpp>
+
+#include "vom/interface.hpp"
+#include "vom/sub_interface.hpp"
+#include "vom/tap_interface.hpp"
+
+namespace VOM {
+std::unique_ptr<interface>
+interface::new_interface(const vapi_payload_sw_interface_details& vd)
+{
+  std::unique_ptr<interface> up_itf;
+
+  /**
+ * Determine the interface type from the name and VLAN attributes
+ */
+  std::string name = reinterpret_cast<const char*>(vd.interface_name);
+  type_t type = interface::type_t::from_string(name);
+  admin_state_t state = interface::admin_state_t::from_int(vd.link_up_down);
+  handle_t hdl(vd.sw_if_index);
+  l2_address_t l2_address(vd.l2_address, vd.l2_address_length);
+
+  if (type_t::AFPACKET == type) {
+    /*
+ * need to strip VPP's "host-" prefix from the interface name
+ */
+    name = name.substr(5);
+  }
+  /**
+ * if the tag is set, then we wrote that to specify a name to make
+ * the interface type more specific
+ */
+  if (vd.tag[0] != 0) {
+    name = std::string(reinterpret_cast<const char*>(vd.tag));
+    type = interface::type_t::from_string(name);
+  }
+
+  /*
+ * pull out the other special cases
+ */
+  if (type_t::TAP == type) {
+    /*
+ * TAP interface
+ */
+    up_itf.reset(new tap_interface(hdl, name, state, route::prefix_t()));
+  } else if ((name.find(".") != std::string::npos) && (0 != vd.sub_id)) {
+    /*
+ * Sub-interface
+ *   split the name into the parent and VLAN
+ */
+    std::vector<std::string> parts;
+    boost::split(parts, name, boost::is_any_of("."));
+
+    interface parent(parts[0], type, state);
+    up_itf.reset(new sub_interface(hdl, parent, state, vd.sub_id));
+  } else if (type_t::VXLAN == type) {
+    /*
+ * there's not enough inforation in a SW interface record to
+ * construct
+ * a VXLAN tunnel. so skip it.
+ */
+  } else {
+    up_itf.reset(new interface(hdl, l2_address, name, type, state));
+  }
+
+  return (up_itf);
+}
+}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "mozilla")
+ * End:
+ */