JFFS2: Add RTEMS_JFFS2_GET_INFO

Add IO control RTEMS_JFFS2_GET_INFO to get some JFFS2 filesystem
instance information.

Update #2844.

6 files changed, 299 insertions, 0 deletions

diff --git a/testsuites/fstests/Makefile.am b/testsuites/fstests/Makefile.am
index 930fbd7254..0edd25947c 100644
--- a/testsuites/fstests/Makefile.am
+++ b/testsuites/fstests/Makefile.am
@@ -1,6 +1,7 @@
 ACLOCAL_AMFLAGS = -I ../aclocal
 
 _SUBDIRS =
+_SUBDIRS += fsjffs2gc01
 _SUBDIRS += fsimfsconfig03
 _SUBDIRS += fsimfsconfig02
 _SUBDIRS += fsimfsconfig01
diff --git a/testsuites/fstests/configure.ac b/testsuites/fstests/configure.ac
index f0bbaafdbd..7d00ba7349 100644
--- a/testsuites/fstests/configure.ac
+++ b/testsuites/fstests/configure.ac
@@ -77,6 +77,7 @@ AC_CHECK_SIZEOF([blkcnt_t])
 
 # Explicitly list all Makefiles here
 AC_CONFIG_FILES([Makefile
+fsjffs2gc01/Makefile
 fsimfsconfig03/Makefile
 fsimfsconfig02/Makefile
 fsimfsconfig01/Makefile
diff --git a/testsuites/fstests/fsjffs2gc01/Makefile.am b/testsuites/fstests/fsjffs2gc01/Makefile.am
new file mode 100644
index 0000000000..e0571f48bf
--- /dev/null
+++ b/testsuites/fstests/fsjffs2gc01/Makefile.am
@@ -0,0 +1,29 @@
+rtems_tests_PROGRAMS = fsjffs2gc01
+fsjffs2gc01_SOURCES = init.c
+fsjffs2gc01_SOURCES += ../support/fstest_support.c
+fsjffs2gc01_SOURCES += ../support/fstest_support.h
+fsjffs2gc01_SOURCES += ../support/fstest.h
+fsjffs2gc01_SOURCES += ../../psxtests/include/pmacros.h
+fsjffs2gc01_SOURCES += ../jffs2_support/fs_support.c
+fsjffs2gc01_SOURCES += ../jffs2_support/fs_config.h
+fsjffs2gc01_LDADD = -ljffs2
+
+dist_rtems_tests_DATA = fsjffs2gc01.scn fsjffs2gc01.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
+AM_CPPFLAGS += -I$(top_srcdir)/jffs2_support
+AM_CPPFLAGS += -I$(top_srcdir)/../support/include
+AM_CPPFLAGS += -I$(top_srcdir)/../psxtests/include
+
+LINK_OBJS = $(fsjffs2gc01_OBJECTS) $(fsjffs2gc01_LDADD)
+LINK_LIBS = $(fsjffs2gc01_LDLIBS)
+
+fsjffs2gc01$(EXEEXT): $(fsjffs2gc01_OBJECTS) $(fsjffs2gc01_DEPENDENCIES)
+	@rm -f fsjffs2gc01$(EXEEXT)
+	$(make-exe)
+
+include $(top_srcdir)/../automake/local.am
diff --git a/testsuites/fstests/fsjffs2gc01/fsjffs2gc01.doc b/testsuites/fstests/fsjffs2gc01/fsjffs2gc01.doc
new file mode 100644
index 0000000000..53e71a4797
--- /dev/null
+++ b/testsuites/fstests/fsjffs2gc01/fsjffs2gc01.doc
@@ -0,0 +1,11 @@
+This file describes the directives and concepts tested by this test set.
+
+test set name: fsjffs2gc01
+
+directives:
+
+  - JFFS2 implementation
+
+concepts:
+
+  - Ensure that RTEMS_JFFS2_GET_INFO returns the expected information.
diff --git a/testsuites/fstests/fsjffs2gc01/fsjffs2gc01.scn b/testsuites/fstests/fsjffs2gc01/fsjffs2gc01.scn
new file mode 100644
index 0000000000..7747e8dee8
--- /dev/null
+++ b/testsuites/fstests/fsjffs2gc01/fsjffs2gc01.scn
@@ -0,0 +1,6 @@
+*** BEGIN OF TEST FSJFFS2GC 1 ***
+Initializing filesystem JFFS2
+
+
+Shutting down filesystem JFFS2
+*** END OF TEST FSJFFS2GC 1 ***
diff --git a/testsuites/fstests/fsjffs2gc01/init.c b/testsuites/fstests/fsjffs2gc01/init.c
new file mode 100644
index 0000000000..df2e986412
--- /dev/null
+++ b/testsuites/fstests/fsjffs2gc01/init.c
@@ -0,0 +1,251 @@
+/*
+ * Copyright (c) 2016 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@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 <fstest.h>
+
+#include <sys/stat.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <errno.h>
+
+#include <rtems/jffs2.h>
+
+const char rtems_test_name[] = "FSJFFS2GC 1";
+
+static const rtems_jffs2_info info_initial = {
+  .flash_size = 131072,
+  .flash_blocks = 8,
+  .flash_block_size = 16384,
+  .used_size = 96,
+  .dirty_size = 0,
+  .wasted_size = 0,
+  .free_size = 130976,
+  .bad_size = 0,
+  .clean_blocks = 0,
+  .dirty_blocks = 0,
+  .erasable_blocks = 0,
+  .free_blocks = 8,
+  .bad_blocks = 0
+};
+
+static const rtems_jffs2_info info_big_created = {
+  .flash_size = 131072,
+  .flash_blocks = 8,
+  .flash_block_size = 16384,
+  .used_size = 22292,
+  .dirty_size = 0,
+  .wasted_size = 164,
+  .free_size = 108616,
+  .bad_size = 0,
+  .clean_blocks = 1,
+  .dirty_blocks = 0,
+  .erasable_blocks = 0,
+  .free_blocks = 7,
+  .bad_blocks = 0
+};
+
+static const rtems_jffs2_info info_big_removed = {
+  .flash_size = 131072,
+  .flash_blocks = 8,
+  .flash_block_size = 16384,
+  .used_size = 72,
+  .dirty_size = 16384,
+  .wasted_size = 6000,
+  .free_size = 108616,
+  .bad_size = 0,
+  .clean_blocks = 0,
+  .dirty_blocks = 0,
+  .erasable_blocks = 1,
+  .free_blocks = 7,
+  .bad_blocks = 0
+};
+
+static const rtems_jffs2_info info_more_files_created = {
+  .flash_size = 131072,
+  .flash_blocks = 8,
+  .flash_block_size = 16384,
+  .used_size = 54896,
+  .dirty_size = 23336,
+  .wasted_size = 36,
+  .free_size = 52804,
+  .bad_size = 0,
+  .clean_blocks = 2,
+  .dirty_blocks = 1,
+  .erasable_blocks = 1,
+  .free_blocks = 4,
+  .bad_blocks = 0
+};
+
+static const rtems_jffs2_info info_some_files_removed = {
+  .flash_size = 131072,
+  .flash_blocks = 8,
+  .flash_block_size = 16384,
+  .used_size = 23528,
+  .dirty_size = 47372,
+  .wasted_size = 7368,
+  .free_size = 52804,
+  .bad_size = 0,
+  .clean_blocks = 0,
+  .dirty_blocks = 3,
+  .erasable_blocks = 1,
+  .free_blocks = 4,
+  .bad_blocks = 0
+};
+
+static char big[] = "big";
+
+static const char * const more[] = {
+  "1",
+  "2",
+  "3",
+  "4",
+  "5",
+  "6",
+  "7"
+};
+
+#define ASSERT_INFO(a, b) do { \
+  rv = ioctl(fd, RTEMS_JFFS2_GET_INFO, &info); \
+  rtems_test_assert(rv == 0); \
+  rtems_test_assert(memcmp(a, b, sizeof(*a)) == 0); \
+} while (0)
+
+static const mode_t mode = S_IRWXU | S_IRWXG | S_IRWXO;
+
+static char keg[523];
+
+static uint32_t simple_random(uint32_t v)
+{
+  v *= 1664525;
+  v += 1013904223;
+
+  return v;
+}
+
+static void init_keg(void)
+{
+  size_t i;
+  uint32_t v;
+
+  v = 123;
+  for (i = 0; i < sizeof(keg); ++i) {
+    v = simple_random(v);
+    keg[i] = (uint8_t) (v >> 23);
+  }
+}
+
+static void write_kegs(int fd, int kegs)
+{
+  int i;
+
+  for (i = 0; i < kegs; ++i) {
+    ssize_t n;
+
+    n = write(fd, &keg[0], sizeof(keg));
+    rtems_test_assert(n == (ssize_t) sizeof(keg));
+  }
+}
+
+static void create_big_file(void)
+{
+  int fd;
+  int rv;
+
+  fd = open(&big[0], O_WRONLY | O_TRUNC | O_CREAT, mode);
+  rtems_test_assert(fd >= 0);
+
+  write_kegs(fd, 37);
+
+  rv = close(fd);
+  rtems_test_assert(rv == 0);
+}
+
+static void remove_big_file(void)
+{
+  int rv;
+
+  rv = unlink(&big[0]);
+  rtems_test_assert(rv == 0);
+}
+
+static void create_more_files(void)
+{
+  int fds[RTEMS_ARRAY_SIZE(more)];
+  int rv;
+  size_t i;
+  int j;
+
+  for (i = 0; i < RTEMS_ARRAY_SIZE(fds); ++i) {
+    fds[i] = open(more[i], O_WRONLY | O_TRUNC | O_CREAT, mode);
+    rtems_test_assert(fds[i] >= 0);
+  }
+
+  for (j = 0; j < 13; ++j) {
+    for (i = 0; i < RTEMS_ARRAY_SIZE(fds); ++i) {
+      write_kegs(fds[i], 1);
+    }
+  }
+
+  for (i = 0; i < RTEMS_ARRAY_SIZE(fds); ++i) {
+    rv = close(fds[i]);
+    rtems_test_assert(rv == 0);
+  }
+}
+
+static void remove_some_files(void)
+{
+  size_t i;
+
+  for (i = 0; i < RTEMS_ARRAY_SIZE(more); i += 2) {
+    int rv;
+
+    rv = unlink(more[i]);
+    rtems_test_assert(rv == 0);
+  }
+}
+
+void test(void)
+{
+  int fd;
+  int rv;
+  rtems_jffs2_info info;
+
+  init_keg();
+
+  fd = open("/", O_RDONLY);
+  rtems_test_assert(fd >= 0);
+
+  ASSERT_INFO(&info, &info_initial);
+
+  create_big_file();
+  ASSERT_INFO(&info, &info_big_created);
+
+  remove_big_file();
+  ASSERT_INFO(&info, &info_big_removed);
+
+  create_more_files();
+  ASSERT_INFO(&info, &info_more_files_created);
+
+  remove_some_files();
+  ASSERT_INFO(&info, &info_some_files_removed);
+
+  rv = close(fd);
+  rtems_test_assert(rv == 0);
+}