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, 2 insertions, 32 deletions

diff --git a/src/vnet/bier/bier.api b/src/vnet/bier/bier.api
index c7e9a98209b..380d2973705 100644
--- a/src/vnet/bier/bier.api
+++ b/src/vnet/bier/bier.api
@@ -18,7 +18,8 @@
     This file defines vpp BIER control-plane API messages which are generally
     called through a shared memory interface.
 */
-vl_api_version 1.0.0
+option version = "1.0.0";
+import "vnet/fib/fib_types.api";
 
 /** \brief BIER Table Indentifier
     @param bt_set - The BIER set
@@ -63,37 +64,6 @@ define bier_table_details
   vl_api_bier_table_id_t bt_tbl_id;
 };
 
-/** \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
-
-    WARNING: this type is replicated, pending cleanup completion
-*/
-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];
-};
-
 /** \brief BIER Route Add / del route
     @param client_index - opaque cookie to identify the sender
     @param context - sender context, to match reply w/ request