Merge branch 'ubi'

1 files changed, 310 insertions, 0 deletions

diff --git a/ubi-utils/tests/rsvol.c b/ubi-utils/tests/rsvol.c
new file mode 100644
index 0000000..51fa069
--- /dev/null
+++ b/ubi-utils/tests/rsvol.c
@@ -0,0 +1,310 @@
+/*
+ * Copyright (c) International Business Machines Corp., 2006
+ *
+ * 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
+ *
+ * Tes UBI volume re-size.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include "libubi.h"
+#define TESTNAME "rsvol"
+#include "common.h"
+
+static libubi_t libubi;
+static struct ubi_dev_info dev_info;
+const char *node;
+
+static int test_basic(int type);
+static int test_rsvol(int type);
+
+int main(int argc, char * const argv[])
+{
+	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 close;
+	}
+
+	if (test_basic(UBI_DYNAMIC_VOLUME))
+		goto close;
+	if (test_basic(UBI_STATIC_VOLUME))
+		goto close;
+	if (test_rsvol(UBI_DYNAMIC_VOLUME))
+		goto close;
+	if (test_rsvol(UBI_STATIC_VOLUME))
+		goto close;
+
+	libubi_close(libubi);
+	return 0;
+
+close:
+	libubi_close(libubi);
+	return 1;
+}
+
+/**
+ * test_basic - check volume re-size capability.
+ *
+ * @type  volume type (%UBI_DYNAMIC_VOLUME or %UBI_STATIC_VOLUME)
+ *
+ * Thus function returns %0 in case of success and %-1 in case of failure.
+ */
+static int test_basic(int type)
+{
+	struct ubi_mkvol_request req;
+	const char *name = TESTNAME ":test_basic()";
+
+	req.vol_id = UBI_VOL_NUM_AUTO;
+	req.alignment = 1;
+	req.bytes = MIN_AVAIL_EBS * dev_info.eb_size;
+	req.vol_type = type;
+	req.name = name;
+
+	if (ubi_mkvol(libubi, node, &req)) {
+		failed("ubi_mkvol");
+		return -1;
+	}
+
+	req.bytes = dev_info.eb_size;
+	if (ubi_rsvol(libubi, node, req.vol_id, req.bytes)) {
+		failed("ubi_rsvol");
+		goto remove;
+	}
+
+	if (check_volume(req.vol_id, &req))
+		goto remove;
+
+	req.bytes = (MIN_AVAIL_EBS + 1) * dev_info.eb_size;
+	if (ubi_rsvol(libubi, node, req.vol_id, req.bytes)) {
+		failed("ubi_rsvol");
+		goto remove;
+	}
+
+	if (check_volume(req.vol_id, &req))
+		goto remove;
+
+	req.bytes -= 1;
+	if (ubi_rsvol(libubi, node, req.vol_id, req.bytes)) {
+		failed("ubi_rsvol");
+		goto remove;
+	}
+
+	if (check_volume(req.vol_id, &req))
+		goto remove;
+
+	if (ubi_rmvol(libubi, node, req.vol_id)) {
+		failed("ubi_rmvol");
+		return -1;
+	}
+
+	return 0;
+
+remove:
+	ubi_rmvol(libubi, node, req.vol_id);
+	return -1;
+}
+
+static int test_rsvol1(struct ubi_vol_info *vol_info);
+
+/**
+ * test_rsvol - test UBI volume re-size.
+ *
+ * @type  volume type (%UBI_DYNAMIC_VOLUME or %UBI_STATIC_VOLUME)
+ *
+ * Thus function returns %0 in case of success and %-1 in case of failure.
+ */
+static int test_rsvol(int type)
+{
+	const char *name = TESTNAME "test_rsvol:()";
+	int alignments[] = ALIGNMENTS(dev_info.eb_size);
+	char vol_node[strlen(UBI_VOLUME_PATTERN) + 100];
+	struct ubi_mkvol_request req;
+	int i;
+
+	for (i = 0; i < sizeof(alignments)/sizeof(int); i++) {
+		int eb_size;
+		struct ubi_vol_info vol_info;
+
+		req.vol_id = UBI_VOL_NUM_AUTO;
+		req.vol_type = type;
+		req.name = name;
+
+		req.alignment = alignments[i];
+		req.alignment -= req.alignment % dev_info.min_io_size;
+		if (req.alignment == 0)
+			req.alignment = dev_info.min_io_size;
+
+		eb_size = dev_info.eb_size - dev_info.eb_size % req.alignment;
+		req.bytes =  MIN_AVAIL_EBS * eb_size;
+
+		if (ubi_mkvol(libubi, node, &req)) {
+			failed("ubi_mkvol");
+			return -1;
+		}
+
+		sprintf(&vol_node[0], UBI_VOLUME_PATTERN, dev_info.dev_num,
+			req.vol_id);
+
+		if (ubi_get_vol_info(libubi, vol_node, &vol_info)) {
+			failed("ubi_get_vol_info");
+			goto remove;
+		}
+
+		if (test_rsvol1(&vol_info)) {
+			err_msg("alignment = %d", req.alignment);
+			goto remove;
+		}
+
+		if (ubi_rmvol(libubi, node, req.vol_id)) {
+			failed("ubi_rmvol");
+			return -1;
+		}
+	}
+
+	return 0;
+
+remove:
+	ubi_rmvol(libubi, node, req.vol_id);
+	return -1;
+}
+
+/*
+ * Helper function for test_rsvol().
+ */
+static int test_rsvol1(struct ubi_vol_info *vol_info)
+{
+	long long bytes;
+	struct ubi_vol_info vol_info1;
+	char vol_node[strlen(UBI_VOLUME_PATTERN) + 100];
+	unsigned char buf[vol_info->rsvd_bytes];
+	int fd, i, ret;
+
+	/* Make the volume smaller and check basic volume I/O */
+	bytes = vol_info->rsvd_bytes - vol_info->eb_size;
+	if (ubi_rsvol(libubi, node, vol_info->vol_id, bytes - 1)) {
+		failed("ubi_rsvol");
+		return -1;
+	}
+
+	if (ubi_get_vol_info1(libubi, vol_info->dev_num, vol_info->vol_id,
+			     &vol_info1)) {
+		failed("ubi_get_vol_info");
+		return -1;
+	}
+
+	if (vol_info1.rsvd_bytes != bytes) {
+		err_msg("rsvd_bytes %lld, must be %lld",
+			vol_info1.rsvd_bytes, bytes);
+		return -1;
+	}
+
+	if (vol_info1.rsvd_ebs != vol_info->rsvd_ebs - 1) {
+		err_msg("rsvd_ebs %d, must be %d",
+			vol_info1.rsvd_ebs, vol_info->rsvd_ebs - 1);
+		return -1;
+	}
+
+	/* Write data to the volume */
+	sprintf(&vol_node[0], UBI_VOLUME_PATTERN, dev_info.dev_num,
+			vol_info->vol_id);
+
+	fd = open(vol_node, O_RDWR);
+	if (fd == -1) {
+		failed("open");
+		err_msg("cannot open \"%s\"\n", node);
+		return -1;
+	}
+
+	bytes = vol_info->rsvd_bytes - vol_info->eb_size - 1;
+	if (ubi_update_start(libubi, fd, bytes)) {
+		failed("ubi_update_start");
+		goto close;
+	}
+
+	for (i = 0; i < bytes; i++)
+		buf[i] = (unsigned char)i;
+
+	ret = write(fd, &buf[0], bytes);
+	if (ret != bytes) {
+		failed("write");
+		goto close;
+	}
+
+	close(fd);
+
+	if (ubi_rsvol(libubi, node, vol_info->vol_id, bytes)) {
+		failed("ubi_rsvol");
+		return -1;
+	}
+
+	if (ubi_rsvol(libubi, node, vol_info->vol_id,
+		      vol_info->eb_size * dev_info.avail_ebs)) {
+		failed("ubi_rsvol");
+		return -1;
+	}
+
+	fd = open(vol_node, O_RDWR);
+	if (fd == -1) {
+		failed("open");
+		err_msg("cannot open \"%s\"\n", node);
+		return -1;
+	}
+
+	/* Read data back */
+	if (lseek(fd, 0, SEEK_SET) != 0) {
+		failed("seek");
+		goto close;
+	}
+	memset(&buf[0], 0, bytes);
+	ret = read(fd, &buf[0], bytes);
+	if (ret != bytes) {
+		failed("read");
+		goto close;
+	}
+
+	for (i = 0; i < bytes; i++) {
+		if (buf[i] != (unsigned char)i) {
+			err_msg("bad data");
+			goto close;
+		}
+	}
+
+	close(fd);
+	return 0;
+
+close:
+	close(fd);
+	return -1;
+}