--- /dev/null
+/*
+ * 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, make sure the volume cannot be open, 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.eb_size;
+ req.vol_type = UBI_DYNAMIC_VOLUME;
+ req.name = "rmvol";
+
+ if (ubi_mkvol(libubi, node, &req)) {
+ failed("ubi_mkvol");
+ perror("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) {
+ failed("open");
+ perror("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) {
+ failed("read");
+ err_msg("read returned %d, expected -1", ret);
+ goto out_close;
+ }
+
+ /* Close the file and try to open it again, should fail */
+ close(fd);
+ fd = open(fname, O_RDONLY);
+ if (fd != -1) {
+ failed("open");
+ err_msg("opened %s again, open returned %d, expected -1",
+ fname, fd);
+ 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;
+}
+
+#if 0
+/**
+ * mkvol_alignment - create volumes with different alignments.
+ *
+ * Thus function returns %0 in case of success and %-1 in case of failure.
+ */
+static int mkvol_alignment(void)
+{
+ struct ubi_mkvol_request req;
+ int i, vol_id, ebsz;
+ const char *name = TESTNAME ":mkvol_alignment()";
+ int alignments[] = ALIGNMENTS(dev_info.eb_size);
+
+ for (i = 0; i < sizeof(alignments)/sizeof(int); i++) {
+ req.vol_id = UBI_VOL_NUM_AUTO;
+
+ /* Alignment should actually be multiple of min. I/O size */
+ req.alignment = alignments[i];
+ req.alignment -= req.alignment % dev_info.min_io_size;
+ if (req.alignment == 0)
+ req.alignment = dev_info.min_io_size;
+
+ /* Bear in mind alignment reduces EB size */
+ ebsz = dev_info.eb_size - dev_info.eb_size % req.alignment;
+ req.bytes = dev_info.avail_ebs * ebsz;
+
+ req.vol_type = UBI_DYNAMIC_VOLUME;
+ req.name = name;
+
+ if (ubi_mkvol(libubi, node, &req)) {
+ failed("ubi_mkvol");
+ err_msg("alignment %d", req.alignment);
+ return -1;
+ }
+
+ vol_id = req.vol_id;
+ if (check_volume(vol_id, &req))
+ goto remove;
+
+ if (ubi_rmvol(libubi, node, vol_id)) {
+ failed("ubi_rmvol");
+ return -1;
+ }
+ }
+
+ return 0;
+
+remove:
+ ubi_rmvol(libubi, node, vol_id);
+ return -1;
+}
+
+/**
+ * mkvol_basic - simple test that checks basic volume creation capability.
+ *
+ * Thus function returns %0 in case of success and %-1 in case of failure.
+ */
+static int mkvol_basic(void)
+{
+ struct ubi_mkvol_request req;
+ struct ubi_vol_info vol_info;
+ int vol_id, ret;
+ const char *name = TESTNAME ":mkvol_basic()";
+
+ /* Create dynamic volume of maximum size */
+ req.vol_id = UBI_VOL_NUM_AUTO;
+ req.alignment = 1;
+ req.bytes = dev_info.avail_bytes;
+ req.vol_type = UBI_DYNAMIC_VOLUME;
+ req.name = name;
+
+ if (ubi_mkvol(libubi, node, &req)) {
+ failed("ubi_mkvol");
+ return -1;
+ }
+
+ vol_id = req.vol_id;
+ if (check_volume(vol_id, &req))
+ goto remove;
+
+ if (ubi_rmvol(libubi, node, vol_id)) {
+ failed("ubi_rmvol");
+ return -1;
+ }
+
+ /* Create static volume of maximum size */
+ req.vol_id = UBI_VOL_NUM_AUTO;
+ req.alignment = 1;
+ req.bytes = dev_info.avail_bytes;
+ req.vol_type = UBI_STATIC_VOLUME;
+ req.name = name;
+
+ if (ubi_mkvol(libubi, node, &req)) {
+ failed("ubi_mkvol");
+ return -1;
+ }
+
+ vol_id = req.vol_id;
+ if (check_volume(vol_id, &req))
+ goto remove;
+
+ if (ubi_rmvol(libubi, node, vol_id)) {
+ failed("ubi_rmvol");
+ return -1;
+ }
+
+ /* Make sure volume does not exist */
+ ret = ubi_get_vol_info1(libubi, dev_info.dev_num, vol_id, &vol_info);
+ if (ret == 0) {
+ err_msg("removed volume %d exists", vol_id);
+ goto remove;
+ }
+
+ return 0;
+
+remove:
+ ubi_rmvol(libubi, node, vol_id);
+ return -1;
+}
+
+/**
+ * mkvol_multiple - test multiple volumes creation
+ *
+ * Thus function returns %0 if the test passed and %-1 if not.
+ */
+static int mkvol_multiple(void)
+{
+ struct ubi_mkvol_request req;
+ int i, ret, max = dev_info.max_vol_count;
+ const char *name = TESTNAME ":mkvol_multiple()";
+
+ /* Create maximum number of volumes */
+ for (i = 0; i < max; i++) {
+ char nm[strlen(name) + 50];
+
+ req.vol_id = UBI_VOL_NUM_AUTO;
+ req.alignment = 1;
+ req.bytes = 1;
+ req.vol_type = UBI_STATIC_VOLUME;
+
+ sprintf(&nm[0], "%s:%d", name, i);
+ req.name = &nm[0];
+
+ if (ubi_mkvol(libubi, node, &req)) {
+ if (errno == ENFILE) {
+ max = i;
+ break;
+ }
+ failed("ubi_mkvol");
+ err_msg("vol_id %d", i);
+ goto remove;
+ }
+
+ if (check_volume(req.vol_id, &req)) {
+ err_msg("vol_id %d", i);
+ goto remove;
+ }
+ }
+
+ for (i = 0; i < max; i++) {
+ struct ubi_vol_info vol_info;
+
+ if (ubi_rmvol(libubi, node, i)) {
+ failed("ubi_rmvol");
+ return -1;
+ }
+
+ /* Make sure volume does not exist */
+ ret = ubi_get_vol_info1(libubi, dev_info.dev_num, i, &vol_info);
+ if (ret == 0) {
+ err_msg("removed volume %d exists", i);
+ goto remove;
+ }
+ }
+
+ return 0;
+
+remove:
+ for (i = 0; i < dev_info.max_vol_count + 1; i++)
+ ubi_rmvol(libubi, node, i);
+ return -1;
+}
+#endif
projects / mtd-utils.git / commitdiff