307 lines
6.4 KiB
C
307 lines
6.4 KiB
C
/*
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* Copyright (c) International Business Machines Corp., 2006
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* Author: Artem B. Bityutskiy
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*
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* Tes UBI volume re-size.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include "libubi.h"
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#define PROGRAM_NAME "rsvol"
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#include "common.h"
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#include "helpers.h"
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static libubi_t libubi;
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static struct ubi_dev_info dev_info;
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const char *node;
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/**
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* test_basic - check volume re-size capability.
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*
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* @type volume type (%UBI_DYNAMIC_VOLUME or %UBI_STATIC_VOLUME)
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*
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* Thus function returns %0 in case of success and %-1 in case of failure.
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*/
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static int test_basic(int type)
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{
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struct ubi_mkvol_request req;
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const char *name = PROGRAM_NAME ":test_basic()";
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req.vol_id = UBI_VOL_NUM_AUTO;
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req.alignment = 1;
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req.bytes = MIN_AVAIL_EBS * dev_info.leb_size;
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req.vol_type = type;
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req.name = name;
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if (ubi_mkvol(libubi, node, &req)) {
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failed("ubi_mkvol");
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return -1;
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}
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req.bytes = dev_info.leb_size;
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if (ubi_rsvol(libubi, node, req.vol_id, req.bytes)) {
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failed("ubi_rsvol");
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goto remove;
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}
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if (check_volume(req.vol_id, &req))
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goto remove;
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req.bytes = (MIN_AVAIL_EBS + 1) * dev_info.leb_size;
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if (ubi_rsvol(libubi, node, req.vol_id, req.bytes)) {
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failed("ubi_rsvol");
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goto remove;
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}
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if (check_volume(req.vol_id, &req))
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goto remove;
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req.bytes -= 1;
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if (ubi_rsvol(libubi, node, req.vol_id, req.bytes)) {
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failed("ubi_rsvol");
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goto remove;
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}
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if (check_volume(req.vol_id, &req))
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goto remove;
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if (ubi_rmvol(libubi, node, req.vol_id)) {
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failed("ubi_rmvol");
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return -1;
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}
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return 0;
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remove:
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ubi_rmvol(libubi, node, req.vol_id);
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return -1;
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}
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/*
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* Helper function for test_rsvol().
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*/
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static int test_rsvol1(struct ubi_vol_info *vol_info)
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{
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long long bytes;
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struct ubi_vol_info vol_info1;
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char vol_node[strlen(UBI_VOLUME_PATTERN) + 100];
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unsigned char buf[vol_info->rsvd_bytes];
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int fd, i, ret;
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/* Make the volume smaller and check basic volume I/O */
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bytes = vol_info->rsvd_bytes - vol_info->leb_size;
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if (ubi_rsvol(libubi, node, vol_info->vol_id, bytes - 1)) {
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failed("ubi_rsvol");
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return -1;
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}
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if (ubi_get_vol_info1(libubi, vol_info->dev_num, vol_info->vol_id,
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&vol_info1)) {
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failed("ubi_get_vol_info");
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return -1;
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}
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if (vol_info1.rsvd_bytes != bytes) {
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errorm("rsvd_bytes %lld, must be %lld",
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vol_info1.rsvd_bytes, bytes);
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return -1;
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}
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if (vol_info1.rsvd_lebs != vol_info->rsvd_lebs - 1) {
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errorm("rsvd_lebs %d, must be %d",
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vol_info1.rsvd_lebs, vol_info->rsvd_lebs - 1);
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return -1;
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}
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/* Write data to the volume */
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sprintf(vol_node, UBI_VOLUME_PATTERN, dev_info.dev_num,
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vol_info->vol_id);
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fd = open(vol_node, O_RDWR);
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if (fd == -1) {
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failed("open");
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errorm("cannot open \"%s\"\n", vol_node);
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return -1;
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}
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bytes = vol_info->rsvd_bytes - vol_info->leb_size - 1;
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if (ubi_update_start(libubi, fd, bytes)) {
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failed("ubi_update_start");
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goto close;
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}
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for (i = 0; i < bytes; i++)
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buf[i] = (unsigned char)i;
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ret = write(fd, buf, bytes);
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if (ret != bytes) {
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failed("write");
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goto close;
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}
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close(fd);
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if (ubi_rsvol(libubi, node, vol_info->vol_id, bytes)) {
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failed("ubi_rsvol");
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return -1;
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}
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if (ubi_rsvol(libubi, node, vol_info->vol_id,
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vol_info->leb_size * dev_info.avail_lebs)) {
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failed("ubi_rsvol");
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return -1;
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}
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fd = open(vol_node, O_RDWR);
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if (fd == -1) {
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failed("open");
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errorm("cannot open \"%s\"\n", vol_node);
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return -1;
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}
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/* Read data back */
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if (lseek(fd, 0, SEEK_SET) != 0) {
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failed("seek");
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goto close;
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}
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memset(buf, 0, bytes);
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ret = read(fd, buf, bytes);
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if (ret != bytes) {
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failed("read");
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goto close;
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}
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for (i = 0; i < bytes; i++) {
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if (buf[i] != (unsigned char)i) {
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errorm("bad data");
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goto close;
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}
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}
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close(fd);
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return 0;
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close:
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close(fd);
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return -1;
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}
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/**
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* test_rsvol - test UBI volume re-size.
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*
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* @type volume type (%UBI_DYNAMIC_VOLUME or %UBI_STATIC_VOLUME)
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*
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* Thus function returns %0 in case of success and %-1 in case of failure.
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*/
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static int test_rsvol(int type)
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{
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const char *name = PROGRAM_NAME "test_rsvol:()";
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int alignments[] = ALIGNMENTS(dev_info.leb_size);
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char vol_node[strlen(UBI_VOLUME_PATTERN) + 100];
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struct ubi_mkvol_request req;
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int i;
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for (i = 0; i < sizeof(alignments)/sizeof(int); i++) {
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int leb_size;
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struct ubi_vol_info vol_info;
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req.vol_id = UBI_VOL_NUM_AUTO;
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req.vol_type = type;
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req.name = name;
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req.alignment = alignments[i];
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req.alignment -= req.alignment % dev_info.min_io_size;
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if (req.alignment == 0)
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req.alignment = dev_info.min_io_size;
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leb_size = dev_info.leb_size - dev_info.leb_size % req.alignment;
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req.bytes = MIN_AVAIL_EBS * leb_size;
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if (ubi_mkvol(libubi, node, &req)) {
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failed("ubi_mkvol");
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return -1;
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}
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sprintf(vol_node, UBI_VOLUME_PATTERN, dev_info.dev_num,
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req.vol_id);
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if (ubi_get_vol_info(libubi, vol_node, &vol_info)) {
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failed("ubi_get_vol_info");
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goto remove;
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}
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if (test_rsvol1(&vol_info)) {
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errorm("alignment = %d", req.alignment);
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goto remove;
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}
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if (ubi_rmvol(libubi, node, req.vol_id)) {
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failed("ubi_rmvol");
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return -1;
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}
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}
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return 0;
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remove:
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ubi_rmvol(libubi, node, req.vol_id);
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return -1;
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}
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int main(int argc, char * const argv[])
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{
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if (initial_check(argc, argv))
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return 1;
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node = argv[1];
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libubi = libubi_open();
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if (libubi == NULL) {
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failed("libubi_open");
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return 1;
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}
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if (ubi_get_dev_info(libubi, node, &dev_info)) {
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failed("ubi_get_dev_info");
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goto close;
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}
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if (test_basic(UBI_DYNAMIC_VOLUME))
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goto close;
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if (test_basic(UBI_STATIC_VOLUME))
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goto close;
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if (test_rsvol(UBI_DYNAMIC_VOLUME))
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goto close;
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if (test_rsvol(UBI_STATIC_VOLUME))
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goto close;
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libubi_close(libubi);
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return 0;
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close:
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libubi_close(libubi);
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return 1;
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}
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