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/*
* 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.
*/
/*
* An utility to create UBI volumes.
*
* Author: Artem B. Bityutskiy <dedekind@oktetlabs.ru>
*
* 1.0 Initial release
* 1.1 Does not support erase blocks anymore. This is replaced by
* the number of bytes.
*/
#include <stdio.h>
#include <stdint.h>
#include <getopt.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include "config.h"
#include <libubi.h>
static void usage(void);
static int param_sanity_check(ubi_lib_t lib);
static int parse_options(int argc, char * const argv[]);
/*
* The variables below are set by command line arguments.
*/
static int vol_type = UBI_DYNAMIC_VOLUME;
static int devn = -1;
static long long bytes = 0;
static int alignment = 1;
static int vol_id = UBI_VOL_NUM_AUTO;
static char *name = NULL;
static int nlen = 0;
int main(int argc, char * const argv[])
{
int err;
ubi_lib_t lib;
err = parse_options(argc, argv);
if (err) {
fprintf(stderr, "Wrong options ...\n");
return err == 1 ? 0 : -1;
}
if (devn == -1) {
fprintf(stderr, "Device number was not specified\n");
fprintf(stderr, "Use -h option for help\n");
return -1;
}
err = ubi_open(&lib);
if (err) {
perror("Cannot open libubi");
return -1;
}
err = param_sanity_check(lib);
if (err) {
perror("Input parameters check");
fprintf(stderr, "Use -h option for help\n");
goto out_libubi;
}
err = ubi_mkvol(lib, devn, vol_id, vol_type, bytes, alignment, name);
if (err < 0) {
perror("Cannot create volume");
fprintf(stderr, " err=%d\n", err);
goto out_libubi;
}
/* printf("Created volume %d, %lld bytes, type %s, name %s\n",
vol_id, bytes, vol_type == UBI_DYNAMIC_VOLUME ?
"dynamic" : "static", name); */
vol_id = err;
ubi_close(&lib);
return 0;
out_libubi:
ubi_close(&lib);
return -1;
}
/* 'getopt()' option string */
static const char *optstring = "ht:s:n:N:d:a:";
static int parse_options(int argc, char * const argv[])
{
int opt = 0;
while (opt != -1) {
char *endp;
opt = getopt(argc, argv, optstring);
switch (opt) {
case 'h':
usage();
return 1;
case 't':
if (!strcmp(optarg, "dynamic"))
vol_type = UBI_DYNAMIC_VOLUME;
else if (!strcmp(optarg, "static"))
vol_type = UBI_STATIC_VOLUME;
else {
fprintf(stderr, "Bad volume type: \"%s\"\n",
optarg);
goto out;
}
break;
case 's':
bytes = strtoull(optarg, &endp, 0);
if (endp == optarg || bytes < 0) {
fprintf(stderr, "Bad volume size: \"%s\"\n",
optarg);
goto out;
}
if (endp != '\0') {
if (strcmp(endp, "KiB") == 0)
bytes *= 1024;
else if (strcmp(endp, "MiB") == 0)
bytes *= 1024*1024;
}
break;
case 'a':
alignment = strtoul(optarg, &endp, 0);
if (*endp != '\0' || endp == optarg ||
alignment <= 0) {
fprintf(stderr, "Bad volume alignment: "
"\"%s\"\n", optarg);
goto out;
}
break;
case 'd':
devn = strtoul(optarg, &endp, 0);
if (*endp != '\0' || endp == optarg || devn < 0) {
fprintf(stderr, "Bad UBI device number: "
"\"%s\"\n", optarg);
goto out;
}
break;
case 'n':
vol_id = strtoul(optarg, &endp, 0);
if (*endp != '\0' || endp == optarg ||
(vol_id < 0 && vol_id != UBI_DYNAMIC_VOLUME)) {
fprintf(stderr, "Bad volume ID: "
"\"%s\"\n", optarg);
goto out;
}
break;
case 'N':
name = optarg;
nlen = strlen(name);
break;
case ':':
fprintf(stderr, "Parameter is missing\n");
goto out;
case '?':
fprintf(stderr, "Unknown parameter\n");
goto out;
case -1:
break;
default:
fprintf(stderr, "Internal error\n");
goto out;
}
}
return 0;
out:
errno = EINVAL;
return -1;
}
static int param_sanity_check(ubi_lib_t lib)
{
int err, len;
struct ubi_info ubi;
if (bytes == 0) {
fprintf(stderr, "Volume size was not specified\n");
goto out;
}
if (name == NULL) {
fprintf(stderr, "Volume name was not specified\n");
goto out;
}
err = ubi_get_info(lib, &ubi);
if (err)
return -1;
if (devn >= (int)ubi.dev_count) {
fprintf(stderr, "Device %d does not exist\n", devn);
goto out;
}
len = strlen(name);
if (len > (int)ubi.nlen_max) {
fprintf(stderr, "Too long name (%d symbols), max is %d\n",
len, ubi.nlen_max);
goto out;
}
return 0;
out:
errno = EINVAL;
return -1;
}
static void usage(void)
{
printf("Usage: ubi_mkvol OPTIONS\n"
"Version: " PACKAGE_VERSION "\n"
"The command line options:\n"
"\t-h - this help message\n"
"\t-d - UBI device number\n"
"\t-t TYPE - volume type (dynamic, static) "
"(default is dynamic)\n"
"\t-n VOLID - volume ID to assign to the new volume. If not"
"specified, \n"
"\t the volume ID will be assigned automatically\n"
"\t-s BYTES - volume size in bytes, "
"kilobytes (KiB) or megabytes (MiB)\n"
"\t-N NAME - volume name\n"
"\t-a ALIGNMENT - volume alignment (default is 1)\n");
}
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