3 files changed, 22 insertions, 0 deletions
diff --git a/src/vlibapi/api.h b/src/vlibapi/api.h
index 49f5d5fb085..6820a541cba 100644
--- a/src/vlibapi/api.h
+++ b/src/vlibapi/api.h
@@ -114,6 +114,8 @@ vl_api_trace_t *vl_msg_api_trace_get (api_main_t * am,
 				      vl_api_trace_which_t which);
 void vl_msg_api_add_msg_name_crc (api_main_t * am, const char *string,
 				  u32 id);
+void vl_msg_api_add_version (api_main_t * am, const char *string,
+			     u32 major, u32 minor, u32 patch);
 /* node_serialize.c prototypes */
 u8 *vlib_node_serialize (vlib_node_main_t * nm, u8 * vector,
 			 u32 max_threads, int include_nexts,
diff --git a/src/vlibapi/api_common.h b/src/vlibapi/api_common.h
index 845199efcd0..56b036d7f07 100644
--- a/src/vlibapi/api_common.h
+++ b/src/vlibapi/api_common.h
@@ -186,6 +186,14 @@ typedef struct _vl_msg_api_init_function_list_elt
   vl_msg_api_init_function_t *f;
 } _vl_msg_api_function_list_elt_t;
 
+typedef struct
+{
+  u32 major;
+  u32 minor;
+  u32 patch;
+  char name[64];
+} api_version_t;
+
 /** API main structure, used by both vpp and binary API clients */
 typedef struct
 {
@@ -312,6 +320,9 @@ typedef struct
   /** client message index hash table */
   uword *msg_index_by_name_and_crc;
 
+  /** api version list */
+  api_version_t *api_version_list;
+
   /** Shared VM binary API region name */
   const char *region_name;
 
diff --git a/src/vlibapi/api_shared.c b/src/vlibapi/api_shared.c
index 27898c3b952..831e863393b 100644
--- a/src/vlibapi/api_shared.c
+++ b/src/vlibapi/api_shared.c
@@ -915,6 +915,15 @@ vl_msg_api_add_msg_name_crc (api_main_t * am, const char *string, u32 id)
   hash_set_mem (am->msg_index_by_name_and_crc, string, id);
 }
 
+void
+vl_msg_api_add_version (api_main_t * am, const char *string,
+			u32 major, u32 minor, u32 patch)
+{
+  api_version_t version = {.major = major,.minor = minor,.patch = patch };
+  ASSERT (strlen (string) < 64);
+  strncpy (version.name, string, 64);
+  vec_add1 (am->api_version_list, version);
+}
 
 /*
  * fd.io coding-style-patch-verification: ON