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authorArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2007-12-26 15:12:26 +0200
committerArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2007-12-26 16:23:04 +0200
commit9ba41c4dc891e38c92126bfcc4c366d765841da0 (patch)
tree5d095e949421d86dc2e2df83245405bbf7c84945 /tests/ubi-tests/volrefcnt.c
parent126341588c5e9d9077e31c4a5f550c83b2e3e93d (diff)
ubi-utils: add ubiattach and ubidetach
Add 2 new utilities to attach and detach UBI devices. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'tests/ubi-tests/volrefcnt.c')
-rw-r--r--tests/ubi-tests/volrefcnt.c122
1 files changed, 122 insertions, 0 deletions
diff --git a/tests/ubi-tests/volrefcnt.c b/tests/ubi-tests/volrefcnt.c
new file mode 100644
index 0000000..a56deae
--- /dev/null
+++ b/tests/ubi-tests/volrefcnt.c
@@ -0,0 +1,122 @@
+/*
+ * Copyright (c) Nokia Corporation, 2007
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
+ * the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Author: Artem B. Bityutskiy
+ *
+ * Test volume reference counting - create a volume, open a sysfs file
+ * belonging to the volume, delete the volume but do not close the file, make
+ * sure the file cannot be read, close the file, make sure the volume
+ * disappeard, make sure its sysfs subtree disappeared.
+ */
+
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include "libubi.h"
+#define TESTNAME "rmvol"
+#include "common.h"
+
+#define SYSFS_FILE "/sys/class/ubi/ubi%d_%d/usable_eb_size"
+
+int main(int argc, char * const argv[])
+{
+ int ret, fd;
+ char fname[sizeof(SYSFS_FILE) + 20];
+ const char *node;
+ libubi_t libubi;
+ struct ubi_dev_info dev_info;
+ struct ubi_mkvol_request req;
+ char tmp[100];
+
+ if (initial_check(argc, argv))
+ return 1;
+
+ node = argv[1];
+
+ libubi = libubi_open();
+ if (libubi == NULL) {
+ failed("libubi_open");
+ return 1;
+ }
+
+ if (ubi_get_dev_info(libubi, node, &dev_info)) {
+ failed("ubi_get_dev_info");
+ goto out_libubi;
+ }
+
+ /* Create a small dynamic volume */
+ req.vol_id = UBI_VOL_NUM_AUTO;
+ req.alignment = dev_info.min_io_size;
+ req.bytes = dev_info.leb_size;
+ req.vol_type = UBI_DYNAMIC_VOLUME;
+ req.name = "rmvol";
+
+ if (ubi_mkvol(libubi, node, &req)) {
+ failed("ubi_mkvol");
+ goto out_libubi;
+ }
+
+ /* Open volume-related sysfs file */
+ sprintf(fname, SYSFS_FILE, dev_info.dev_num, req.vol_id);
+ fd = open(fname, O_RDONLY);
+ if (fd == -1) {
+ err_msg("cannot open %s", fname);
+ failed("open");
+ goto out_rmvol;
+ }
+
+ /* Remove the volume, but do not close the file */
+ if (ubi_rmvol(libubi, node, req.vol_id)) {
+ failed("ubi_rmvol");
+ perror("ubi_rmvol");
+ goto out_close;
+ }
+
+ /* Try to read from the file, this should fail */
+ ret = read(fd, tmp, 100);
+ if (ret != -1) {
+ err_msg("read returned %d, expected -1", ret);
+ failed("read");
+ goto out_close;
+ }
+
+ /* Close the file and try to open it again, should fail */
+ close(fd);
+ fd = open(fname, O_RDONLY);
+ if (fd != -1) {
+ err_msg("opened %s again, open returned %d, expected -1",
+ fname, fd);
+ failed("open");
+ goto out_libubi;
+ }
+
+ libubi_close(libubi);
+ return 0;
+
+out_rmvol:
+ ubi_rmvol(libubi, node, req.vol_id);
+out_libubi:
+ libubi_close(libubi);
+ return 1;
+
+out_close:
+ close(fd);
+ libubi_close(libubi);
+ return 1;
+}