diff --git a/src/capwap/bstr.h b/src/capwap/bstr.h
new file mode 100644
index 00000000..50f95016
--- /dev/null
+++ b/src/capwap/bstr.h
@@ -0,0 +1,7 @@
+
+#include <stdint.h>
+
+
+extern uint8_t * bstr_create(uint8_t *data, uint8_t len);
+
+#define bstr_len(s) (*s)
diff --git a/src/capwap/bstr_create.c b/src/capwap/bstr_create.c
new file mode 100644
index 00000000..11626a56
--- /dev/null
+++ b/src/capwap/bstr_create.c
@@ -0,0 +1,17 @@
+#include <stdint.h>
+#include <string.h>
+#include <stdlib.h>
+
+
+
+
+uint8_t * bstr_create(uint8_t *data, uint8_t len)
+{
+	uint8_t * str = malloc(len*sizeof(uint8_t));
+	if (!str)	
+		return 0;
+	*str=len;
+	memcpy(str+1,data,len);
+	return str;
+
+}