From: Christian Mauderer <christian.maude...@embedded-brains.de> --- testsuites/libtests/Makefile.am | 1 + testsuites/libtests/configure.ac | 1 + testsuites/libtests/random01/Makefile.am | 19 ++++++ testsuites/libtests/random01/init.c | 105 ++++++++++++++++++++++++++++++ testsuites/libtests/random01/random01.doc | 12 ++++ testsuites/libtests/random01/random01.scn | 2 + 6 files changed, 140 insertions(+) create mode 100644 testsuites/libtests/random01/Makefile.am create mode 100644 testsuites/libtests/random01/init.c create mode 100644 testsuites/libtests/random01/random01.doc create mode 100644 testsuites/libtests/random01/random01.scn
diff --git a/testsuites/libtests/Makefile.am b/testsuites/libtests/Makefile.am index e72ca1bbaa..c9017301ce 100644 --- a/testsuites/libtests/Makefile.am +++ b/testsuites/libtests/Makefile.am @@ -54,6 +54,7 @@ _SUBDIRS += newlib01 _SUBDIRS += putenvtest _SUBDIRS += pwdgrp01 _SUBDIRS += pwdgrp02 +_SUBDIRS += random01 _SUBDIRS += rbheap01 _SUBDIRS += rtmonuse _SUBDIRS += sha diff --git a/testsuites/libtests/configure.ac b/testsuites/libtests/configure.ac index bbdf4df9d1..1a5e215f3b 100644 --- a/testsuites/libtests/configure.ac +++ b/testsuites/libtests/configure.ac @@ -155,6 +155,7 @@ newlib01/Makefile putenvtest/Makefile pwdgrp01/Makefile pwdgrp02/Makefile +random01/Makefile rbheap01/Makefile rtmonuse/Makefile sha/Makefile diff --git a/testsuites/libtests/random01/Makefile.am b/testsuites/libtests/random01/Makefile.am new file mode 100644 index 0000000000..7c81fc1865 --- /dev/null +++ b/testsuites/libtests/random01/Makefile.am @@ -0,0 +1,19 @@ +rtems_tests_PROGRAMS = random01 +random01_SOURCES = init.c + +dist_rtems_tests_DATA = random01.scn random01.doc + +include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP@.cfg +include $(top_srcdir)/../automake/compile.am +include $(top_srcdir)/../automake/leaf.am + +AM_CPPFLAGS += -I$(top_srcdir)/../support/include + +LINK_OBJS = $(random01_OBJECTS) +LINK_LIBS = $(random01_LDLIBS) + +random01$(EXEEXT): $(random01_OBJECTS) $(random01_DEPENDENCIES) + @rm -f random01$(EXEEXT) + $(make-exe) + +include $(top_srcdir)/../automake/local.am diff --git a/testsuites/libtests/random01/init.c b/testsuites/libtests/random01/init.c new file mode 100644 index 0000000000..b874a497ee --- /dev/null +++ b/testsuites/libtests/random01/init.c @@ -0,0 +1,105 @@ +/* + * Copyright (c) 2017 embedded brains GmbH. All rights reserved. + * + * embedded brains GmbH + * Dornierstr. 4 + * 82178 Puchheim + * Germany + * <rt...@embedded-brains.de> + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + */ + +#ifdef HAVE_CONFIG_H + #include "config.h" +#endif + +#include "tmacros.h" + +#include <rtems.h> +#include <unistd.h> +#include <assert.h> + +const char rtems_test_name[] = "RANDOM 1"; + +/* forward declarations to avoid warnings */ +static rtems_task Init(rtems_task_argument argument); + +#define TEST_MAX_BYTES 32 +#define TEST_GUARD_BYTES 32 +#define TEST_GUARD 0xA5 + +static char entropy_buffer1 [TEST_MAX_BYTES + TEST_GUARD_BYTES]; +static char entropy_buffer2 [TEST_MAX_BYTES + TEST_GUARD_BYTES]; +static char guard_buffer [TEST_MAX_BYTES + TEST_GUARD_BYTES]; + +static void test_getentropy(size_t nr_bytes) +{ + int rv; + size_t try = 1; + + /* + * For very small patterns, the probability that two random patterns are the + * same is quite high. Therefore retry the test for these a few times. + */ + if (nr_bytes < 4) { + try = 4; + } + + do { + --try; + + /* Fill buffers with guard pattern */ + memset(entropy_buffer1, TEST_GUARD, sizeof(entropy_buffer1)); + memset(entropy_buffer2, TEST_GUARD, sizeof(entropy_buffer2)); + memset(guard_buffer, TEST_GUARD, sizeof(entropy_buffer2)); + + /* Get entropy with the given size */ + rv = getentropy(entropy_buffer1, nr_bytes); + assert(rv == 0); + rv = getentropy(entropy_buffer2, nr_bytes); + assert(rv == 0); + + /* Check guard pattern */ + rv = memcmp(entropy_buffer1 + nr_bytes, guard_buffer + nr_bytes, + sizeof(entropy_buffer1) - nr_bytes); + assert(rv == 0); + rv = memcmp(entropy_buffer2 + nr_bytes, guard_buffer + nr_bytes, + sizeof(entropy_buffer2) - nr_bytes); + assert(rv == 0); + + /* Make sure that buffers are not the same */ + rv = memcmp(entropy_buffer1, entropy_buffer2, sizeof(entropy_buffer1)); + } while (try > 0 && rv == 0); + assert(rv != 0); +} + +static void Init(rtems_task_argument arg) +{ + volatile size_t i; + + TEST_BEGIN(); + + for (i=1; i <= TEST_MAX_BYTES; ++i) { + test_getentropy(i); + } + + TEST_END(); + + rtems_test_exit(0); +} + +#define CONFIGURE_APPLICATION_DOES_NOT_NEED_CLOCK_DRIVER +#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER + +#define CONFIGURE_MAXIMUM_TASKS 1 + +#define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION + +#define CONFIGURE_RTEMS_INIT_TASKS_TABLE + +#define CONFIGURE_INIT + +#include <rtems/confdefs.h> diff --git a/testsuites/libtests/random01/random01.doc b/testsuites/libtests/random01/random01.doc new file mode 100644 index 0000000000..957da9a680 --- /dev/null +++ b/testsuites/libtests/random01/random01.doc @@ -0,0 +1,12 @@ +This file describes the directives and concepts tested by this test set. + +test set name: random01 + +directives: + + getentropy + +concepts: + + Ensure that getentropy() works with different sizes of arrays and delivers + different values on multiple calls. diff --git a/testsuites/libtests/random01/random01.scn b/testsuites/libtests/random01/random01.scn new file mode 100644 index 0000000000..f8cd99f18b --- /dev/null +++ b/testsuites/libtests/random01/random01.scn @@ -0,0 +1,2 @@ +*** TEST RANDOM 1 *** +*** END OF TEST RANDOM 1 *** -- 2.12.3 _______________________________________________ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel
