.. _protection_tests:
Protection tests
#################################
Overview
********
This test case verifies that protection is provided
against the following security issues:
* Write to read-only data.
* Write to text.
* Execute from data.
* Execute from stack.
* Execute from heap.
Building and Running
********************
This project can be built and executed as follows:
.. code-block:: console
$ cd tests/protection
$ make BOARD=<insert your board here>
Connect the board to your host computer using the USB port.
Flash the generated zephyr.bin on the board.
Reset the board.
Sample Output
=============
.. code-block:: console
***** BOOTING ZEPHYR OS v1.8.99 - BUILD: Jun 19 2017 12:44:27 *****
Running test suite test_protection
tc_start() - write_ro
trying to write to rodata at 0x00003124
***** BUS FAULT *****
Executing thread ID (thread): 0x200001bc
Faulting instruction address: 0x88c
Imprecise data bus error
Caught system error -- reason 0
===================================================================
PASS - write_ro.
tc_start() - write_text
trying to write to text at 0x000006c0
***** BUS FAULT *****
Executing thread ID (thread): 0x200001bc
Faulting instruction address: 0xd60
Imprecise data bus error
Caught system error -- reason 0
===================================================================
PASS - write_text.
tc_start() - exec_data
trying to call code written to 0x2000041d
***** BUS FAULT *****
Executing thread ID (thread): 0x200001bc
Faulting instruction address: 0x2000041c
Imprecise data bus error
Caught system error -- reason 0
===================================================================
PASS - exec_data.
tc_start() - exec_stack
trying to call code written to 0x20000929
***** BUS FAULT *****
Executing thread ID (thread): 0x200001bc
Faulting instruction address: 0x20000928
Imprecise data bus error
Caught system error -- reason 0
===================================================================
PASS - exec_stack.
tc_start() - exec_heap
trying to call code written to 0x20000455
***** BUS FAULT *****
Executing thread ID (thread): 0x200001bc
Faulting instruction address: 0x20000454
Imprecise data bus error
Caught system error -- reason 0
===================================================================
PASS - exec_heap.
===================================================================
PROJECT EXECUTION SUCCESSFUL
e55fd562ec