X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvlib%2Fbuffer_funcs.h;h=483a990731fa8e912b6933f85d8f1620efadb00a;hb=da7f7b6164e976a97ff0afb13f488c60461402bc;hp=3e0234b6b51f7cb9285575ee9d370c3c45819d85;hpb=5995482d310c97616beea2d5002943745b453515;p=vpp.git

diff --git a/src/vlib/buffer_funcs.h b/src/vlib/buffer_funcs.h
index 3e0234b6b51..483a990731f 100644
--- a/src/vlib/buffer_funcs.h
+++ b/src/vlib/buffer_funcs.h
@@ -976,6 +976,27 @@ vlib_buffer_copy (vlib_main_t * vm, vlib_buffer_t * b)
   return fd;
 }
 
+/* duplicate first buffer in chain */
+always_inline vlib_buffer_t *
+vlib_buffer_copy_no_chain (vlib_main_t * vm, vlib_buffer_t * b, u32 * di)
+{
+  vlib_buffer_t *d;
+
+  if ((vlib_buffer_alloc (vm, di, 1)) != 1)
+    return 0;
+
+  d = vlib_get_buffer (vm, *di);
+  /* 1st segment */
+  d->current_data = b->current_data;
+  d->current_length = b->current_length;
+  clib_memcpy_fast (d->opaque, b->opaque, sizeof (b->opaque));
+  clib_memcpy_fast (d->opaque2, b->opaque2, sizeof (b->opaque2));
+  clib_memcpy_fast (vlib_buffer_get_current (d),
+		    vlib_buffer_get_current (b), b->current_length);
+
+  return d;
+}
+
 /** \brief Create a maximum of 256 clones of buffer and store them
     in the supplied array