/* * 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; /** * 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.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) { err_msg("rsvd_bytes %lld, must be %lld", vol_info1.rsvd_bytes, bytes); return -1; } if (vol_info1.rsvd_lebs != vol_info->rsvd_lebs - 1) { err_msg("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"); err_msg("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"); err_msg("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) { err_msg("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 = TESTNAME "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)) { 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; } int main(int argc, char * const argv[]) { if (initial_check(argc, argv)) return 1; node = argv[1]; libubi = libubi_open(1); 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; }