1 files changed, 102 insertions, 0 deletions
diff --git a/FreeRTOS-Plus/Test/CBMC/proofs/DHCP/DHCPProcess/DHCPProcess_harness.c b/FreeRTOS-Plus/Test/CBMC/proofs/DHCP/DHCPProcess/DHCPProcess_harness.c
new file mode 100644
index 000000000..bbed7b243
--- /dev/null
+++ b/FreeRTOS-Plus/Test/CBMC/proofs/DHCP/DHCPProcess/DHCPProcess_harness.c
@@ -0,0 +1,102 @@
+/*
+  * FreeRTOS memory safety proofs with CBMC.
+  * Copyright (C) 2019 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+  *
+  * Permission is hereby granted, free of charge, to any person
+  * obtaining a copy of this software and associated documentation
+  * files (the "Software"), to deal in the Software without
+  * restriction, including without limitation the rights to use, copy,
+  * modify, merge, publish, distribute, sublicense, and/or sell copies
+  * of the Software, and to permit persons to whom the Software is
+  * furnished to do so, subject to the following conditions:
+  *
+  * The above copyright notice and this permission notice shall be
+  * included in all copies or substantial portions of the Software.
+  *
+  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+  * SOFTWARE.
+  *
+  * http://aws.amazon.com/freertos
+  * http://www.FreeRTOS.org
+  */
+
+/* Standard includes. */
+#include <stdint.h>
+
+/* FreeRTOS includes. */
+#include "FreeRTOS.h"
+#include "task.h"
+#include "semphr.h"
+
+/* FreeRTOS+TCP includes. */
+#include "FreeRTOS_IP.h"
+#include "FreeRTOS_Sockets.h"
+#include "FreeRTOS_IP_Private.h"
+#include "FreeRTOS_UDP_IP.h"
+#include "FreeRTOS_DHCP.h"
+#include "FreeRTOS_ARP.h"
+
+/* Static members defined in FreeRTOS_DHCP.c */
+extern DHCPData_t xDHCPData;
+extern Socket_t xDHCPSocket;
+void prvCreateDHCPSocket();
+
+/* Static member defined in freertos_api.c */
+#ifdef CBMC_GETNETWORKBUFFER_FAILURE_BOUND
+    extern uint32_t GetNetworkBuffer_failure_count;
+#endif
+
+/****************************************************************
+ * The signature of the function under test.
+ ****************************************************************/
+
+void vDHCPProcess( BaseType_t xReset );
+
+/****************************************************************
+ * Abstract prvProcessDHCPReplies proved memory safe in ProcessDHCPReplies.
+ ****************************************************************/
+
+BaseType_t prvProcessDHCPReplies( BaseType_t xExpectedMessageType )
+{
+    return nondet_BaseType();
+}
+
+/****************************************************************
+ * The proof of vDHCPProcess
+ ****************************************************************/
+
+void harness()
+{
+    BaseType_t xReset;
+
+    /****************************************************************
+     * Initialize the counter used to bound the number of times
+     * GetNetworkBufferWithDescriptor can fail.
+     ****************************************************************/
+
+    #ifdef CBMC_GETNETWORKBUFFER_FAILURE_BOUND
+        GetNetworkBuffer_failure_count = 0;
+    #endif
+
+    /****************************************************************
+     * Assume a valid socket in most states of the DHCP state machine.
+     *
+     * The socket is created in the eWaitingSendFirstDiscover state.
+     * xReset==True resets the state to eWaitingSendFirstDiscover.
+     ****************************************************************/
+
+    if( !( ( xDHCPData.eDHCPState == eWaitingSendFirstDiscover ) ||
+           ( xReset != pdFALSE ) ) )
+    {
+        prvCreateDHCPSocket();
+        __CPROVER_assume( xDHCPSocket != NULL );
+    }
+
+    vDHCPProcess( xReset );
+}