VPP-470: Introduce VxLAN-GPE as transport for iOAM.

See Jira ticket for more details
- New plugins created to (a) Add VxLAN-GPE as transport (b) Provide export infra for
  VxLAN-GPE.

Change-Id: Ife50c7434f53d17a4783062310f73d063d53494c
Signed-off-by: Vengada Govindan <venggovi@cisco.com>

3 files changed, 16 insertions, 42 deletions

diff --git a/plugins/ioam-plugin/ioam/lib-trace/trace_api.c b/plugins/ioam-plugin/ioam/lib-trace/trace_api.c
index 32c8e23fae3..e35bb7c4243 100644
--- a/plugins/ioam-plugin/ioam/lib-trace/trace_api.c
+++ b/plugins/ioam-plugin/ioam/lib-trace/trace_api.c
@@ -105,7 +105,6 @@ static void vl_api_trace_profile_add_t_handler
   int rv = 0;
   vl_api_trace_profile_add_reply_t *rmp;
   trace_profile *profile = NULL;
-  u8 *name = 0;
 
   profile = trace_profile_find ();
   if (profile)
@@ -122,7 +121,6 @@ static void vl_api_trace_profile_add_t_handler
       rv = -3;
     }
 ERROROUT:
-  vec_free (name);
   TRACE_REPLY_MACRO (VL_API_TRACE_PROFILE_ADD_REPLY);
 }
 
diff --git a/plugins/ioam-plugin/ioam/lib-trace/trace_util.c b/plugins/ioam-plugin/ioam/lib-trace/trace_util.c
index adc02b20f56..5c7f1eefd9c 100644
--- a/plugins/ioam-plugin/ioam/lib-trace/trace_util.c
+++ b/plugins/ioam-plugin/ioam/lib-trace/trace_util.c
@@ -21,22 +21,13 @@
 
 trace_main_t trace_main;
 
-extern ip6_hop_by_hop_ioam_main_t ip6_hop_by_hop_ioam_main;
-
 static int
 trace_profile_cleanup (trace_profile * profile)
 {
-  int rv;
-  ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main;
 
   memset (profile, 0, sizeof (trace_profile));
   profile->trace_tsp = TSP_MICROSECONDS;	/* Micro seconds */
-  hm->options_size[HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST] = 0;
-  if (0 !=
-      (rv =
-       ip6_ioam_set_rewrite (&hm->rewrite, hm->has_trace_option,
-			     hm->has_pot_option, hm->has_seqno_option)))
-    return (-1);
+  ip6_trace_profile_cleanup ();	/* lib-trace_TODO: Remove this once IOAM-IPv6 transport is a plugin */
   return 0;
 
 }
@@ -65,10 +56,11 @@ int
 trace_profile_create (trace_profile * profile, u8 trace_type, u8 num_elts,
 		      u32 trace_tsp, u32 node_id, u32 app_data)
 {
-  u32 trace_size = 0;
-  int rv;
-  ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main;
 
+  if (!trace_type || !num_elts || !(node_id))
+    {
+      return (-1);
+    }
   if (profile && !profile->valid)
     {
       //rv = trace_profile_cleanup (profile);
@@ -79,21 +71,8 @@ trace_profile_create (trace_profile * profile, u8 trace_type, u8 num_elts,
       profile->app_data = app_data;
       profile->valid = 1;
 
-      if (ioam_trace_get_sizeof_handler (&trace_size) < 0)
-	return (-1);
-
-      hm->options_size[HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST] = trace_size;
-
-      if (hm->has_trace_option)
-	{
-	  if (0 !=
-	      (rv =
-	       ip6_ioam_set_rewrite (&hm->rewrite, hm->has_trace_option,
-				     hm->has_pot_option,
-				     hm->has_seqno_option)))
-	    return (-1);
-
-	}
+      /* lib-trace_TODO: Remove this once IOAM-IPv6 transport is a plugin */
+      ip6_trace_profile_setup ();
       return (0);
     }
 
diff --git a/plugins/ioam-plugin/ioam/lib-trace/trace_util.h b/plugins/ioam-plugin/ioam/lib-trace/trace_util.h
index 4528b18a8b0..556f07ee3f1 100644
--- a/plugins/ioam-plugin/ioam/lib-trace/trace_util.h
+++ b/plugins/ioam-plugin/ioam/lib-trace/trace_util.h
@@ -18,7 +18,6 @@
 #ifndef include_vnet_trace_util_h
 #define include_vnet_trace_util_h
 
-#include <vnet/ip/ip6_hop_by_hop.h>
 #define debug_ioam debug_ioam_fn
 
 
@@ -72,9 +71,8 @@ int trace_util_init (void);
 
 
 /*
- * Find a trace profile by ID
+ * Find a trace profile
  */
-always_inline trace_profile *trace_profile_find (void);
 
 always_inline trace_profile *
 trace_profile_find (void)
@@ -209,15 +207,6 @@ typedef struct
 } ioam_trace_ts_app_t;
 
 
-/* *INDENT-OFF* */
-typedef CLIB_PACKED(struct {
-  ip6_hop_by_hop_option_t hdr;
-  u8 ioam_trace_type;
-  u8 data_list_elts_left;
-  u32 elts[0]; /* Variable type. So keep it generic */
-}) ioam_trace_option_t;
-/* *INDENT-ON* */
-
 
 static inline u8
 fetch_trace_data_size (u8 trace_type)
@@ -239,6 +228,14 @@ fetch_trace_data_size (u8 trace_type)
 }
 
 int ioam_trace_get_sizeof_handler (u32 * result);
+int ip6_trace_profile_setup (void);
+int ip6_trace_profile_cleanup (void);
+
+#define TSP_SECONDS              0
+#define TSP_MILLISECONDS         1
+#define TSP_MICROSECONDS         2
+#define TSP_NANOSECONDS          3
+
 #endif
 
 /*