VPPAPIGEN: vppapigen replacement in Python PLY.

This is a version of the VPP API generator in Python PLY. It supports
the existing language, and has a plugin architecture for generators.
Currently C and JSON are supported.

Changes:
 - vl_api_version to option version = "major.minor.patch"
 - enum support
 - Added error checking and reporting
 - import support (removed the C pre-processor)
 - services (tying request/reply together)

Version:
 option version = "1.0.0";

Enum:
 enum colours {
   RED,
   BLUE = 50,
 };
 define foo {
  vl_api_colours_t colours;
 };

Services:
 service {
  rpc foo returns foo_reply;
  rpc foo_dump returns stream foo_details;
  rpc want_stats returns want_stats_reply
      events ip4_counters, ip6_counters;
 };

Future planned features:
 - unions
 - bool, text
 - array support (including length)
 - proto3 output plugin
 - Refactor C/C++ generator as a plugin
 - Refactor Java generator as a plugin

Change-Id: Ifa289966c790e1b1a8e2938a91e69331e3a58bdf
Signed-off-by: Ole Troan <ot@cisco.com>

1 files changed, 45 insertions, 0 deletions

diff --git a/src/vnet/fib/fib_types.api b/src/vnet/fib/fib_types.api
new file mode 100644
index 00000000000..61a0898819d
--- /dev/null
+++ b/src/vnet/fib/fib_types.api
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2016 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.
+ */
+
+/** \brief FIB path
+    @param sw_if_index - index of the interface
+    @param weight - The weight, for UCMP
+    @param preference - The preference of the path. lowest preference
+    is prefered
+    @param is_local - local if non-zero, else remote
+    @param is_drop - Drop the packet
+    @param is_udp_encap - The path describes a UDP-o-IP encapsulation.
+    @param afi - the afi of the next hop, IP46_TYPE_IP4=1, IP46_TYPE_IP6=2
+    @param next_hop[16] - the next hop address
+    @param next_hop_id - Used when the path resolves via an object
+                         that has a unique identifier. e.g. the UDP
+                         encap object
+*/
+typeonly define fib_path3
+{
+  u32 sw_if_index;
+  u32 table_id;
+  u8 weight;
+  u8 preference;
+  u8 is_local;
+  u8 is_drop;
+  u8 is_udp_encap;
+  u8 afi;
+  u8 next_hop[16];
+  u32 next_hop_id;
+  u32 rpf_id;
+  u8 n_labels;
+  u32 label_stack[16];
+};