M7350/filesystems/mtd-utils/tests/ubi-tests/rsvol.c
2024-09-09 08:57:42 +00:00

307 lines
6.4 KiB
C

/*
* 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 PROGRAM_NAME "rsvol"
#include "common.h"
#include "helpers.h"
static libubi_t libubi;
static struct ubi_dev_info dev_info;
const char *node;
/**
* 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 = PROGRAM_NAME ":test_basic()";
req.vol_id = UBI_VOL_NUM_AUTO;
req.alignment = 1;
req.bytes = MIN_AVAIL_EBS * dev_info.leb_size;
req.vol_type = type;
req.name = name;
if (ubi_mkvol(libubi, node, &req)) {
failed("ubi_mkvol");
return -1;
}
req.bytes = dev_info.leb_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.leb_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;
}
/*
* 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->leb_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) {
errorm("rsvd_bytes %lld, must be %lld",
vol_info1.rsvd_bytes, bytes);
return -1;
}
if (vol_info1.rsvd_lebs != vol_info->rsvd_lebs - 1) {
errorm("rsvd_lebs %d, must be %d",
vol_info1.rsvd_lebs, vol_info->rsvd_lebs - 1);
return -1;
}
/* Write data to the volume */
sprintf(vol_node, UBI_VOLUME_PATTERN, dev_info.dev_num,
vol_info->vol_id);
fd = open(vol_node, O_RDWR);
if (fd == -1) {
failed("open");
errorm("cannot open \"%s\"\n", vol_node);
return -1;
}
bytes = vol_info->rsvd_bytes - vol_info->leb_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, 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->leb_size * dev_info.avail_lebs)) {
failed("ubi_rsvol");
return -1;
}
fd = open(vol_node, O_RDWR);
if (fd == -1) {
failed("open");
errorm("cannot open \"%s\"\n", vol_node);
return -1;
}
/* Read data back */
if (lseek(fd, 0, SEEK_SET) != 0) {
failed("seek");
goto close;
}
memset(buf, 0, bytes);
ret = read(fd, buf, bytes);
if (ret != bytes) {
failed("read");
goto close;
}
for (i = 0; i < bytes; i++) {
if (buf[i] != (unsigned char)i) {
errorm("bad data");
goto close;
}
}
close(fd);
return 0;
close:
close(fd);
return -1;
}
/**
* 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 = PROGRAM_NAME "test_rsvol:()";
int alignments[] = ALIGNMENTS(dev_info.leb_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 leb_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;
leb_size = dev_info.leb_size - dev_info.leb_size % req.alignment;
req.bytes = MIN_AVAIL_EBS * leb_size;
if (ubi_mkvol(libubi, node, &req)) {
failed("ubi_mkvol");
return -1;
}
sprintf(vol_node, 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)) {
errorm("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;
}
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;
}