441 lines
12 KiB
C
441 lines
12 KiB
C
/*
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* Copyright (C) 2007, 2008 Nokia Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc., 51
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* Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/*
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* An utility to get UBI information.
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*
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* Author: Artem Bityutskiy
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*/
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#define PROGRAM_NAME "ubinfo"
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#include <stdint.h>
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#include <stdio.h>
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#include <getopt.h>
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#include <stdlib.h>
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#include <string.h>
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#include <libubi.h>
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#include "common.h"
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/* The variables below are set by command line arguments */
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struct args {
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int devn;
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int vol_id;
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int all;
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const char *node;
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const char *vol_name;
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};
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static struct args args = {
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.vol_id = -1,
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.devn = -1,
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.all = 0,
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.node = NULL,
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.vol_name = NULL,
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};
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static const char doc[] = PROGRAM_NAME " version " VERSION
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" - a tool to print UBI information.";
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static const char optionsstr[] =
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"-d, --devn=<UBI device number> UBI device number to get information about\n"
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"-n, --vol_id=<volume ID> ID of UBI volume to print information about\n"
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"-N, --name=<volume name> name of UBI volume to print information about\n"
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"-a, --all print information about all devices and volumes,\n"
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" or about all volumes if the UBI device was\n"
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" specified\n"
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"-h, --help print help message\n"
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"-V, --version print program version";
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static const char usage[] =
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"Usage 1: " PROGRAM_NAME " [-d <UBI device number>] [-n <volume ID> | -N <volume name>] [-a] [-h] [-V]\n"
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"\t\t[--vol_id=<volume ID> | --name <volume name>] [--devn <UBI device number>] [--all] [--help] [--version]\n"
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"Usage 2: " PROGRAM_NAME " <UBI device node file name> [-a] [-h] [-V] [--all] [--help] [--version]\n"
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"Usage 3: " PROGRAM_NAME " <UBI volume node file name> [-h] [-V] [--help] [--version]\n\n"
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"Example 1: " PROGRAM_NAME " - (no arguments) print general UBI information\n"
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"Example 2: " PROGRAM_NAME " -d 1 - print information about UBI device number 1\n"
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"Example 3: " PROGRAM_NAME " /dev/ubi0 -a - print information about all volumes of UBI\n"
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" device /dev/ubi0\n"
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"Example 4: " PROGRAM_NAME " /dev/ubi1_0 - print information about UBI volume /dev/ubi1_0\n"
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"Example 5: " PROGRAM_NAME " -a - print all information\n";
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static const struct option long_options[] = {
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{ .name = "devn", .has_arg = 1, .flag = NULL, .val = 'd' },
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{ .name = "vol_id", .has_arg = 1, .flag = NULL, .val = 'n' },
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{ .name = "name", .has_arg = 1, .flag = NULL, .val = 'N' },
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{ .name = "all", .has_arg = 0, .flag = NULL, .val = 'a' },
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{ .name = "help", .has_arg = 0, .flag = NULL, .val = 'h' },
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{ .name = "version", .has_arg = 0, .flag = NULL, .val = 'V' },
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{ NULL, 0, NULL, 0},
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};
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static int parse_opt(int argc, char * const argv[])
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{
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while (1) {
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int key, error = 0;
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key = getopt_long(argc, argv, "an:N:d:hV", long_options, NULL);
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if (key == -1)
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break;
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switch (key) {
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case 'a':
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args.all = 1;
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break;
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case 'n':
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args.vol_id = simple_strtoul(optarg, &error);
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if (error || args.vol_id < 0)
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return errmsg("bad volume ID: " "\"%s\"", optarg);
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break;
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case 'N':
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args.vol_name = optarg;
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break;
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case 'd':
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args.devn = simple_strtoul(optarg, &error);
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if (error || args.devn < 0)
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return errmsg("bad UBI device number: \"%s\"", optarg);
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break;
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case 'h':
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printf("%s\n\n", doc);
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printf("%s\n\n", usage);
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printf("%s\n", optionsstr);
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exit(EXIT_SUCCESS);
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case 'V':
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common_print_version();
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exit(EXIT_SUCCESS);
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case ':':
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return errmsg("parameter is missing");
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default:
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fprintf(stderr, "Use -h for help\n");
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return -1;
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}
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}
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if (optind == argc - 1)
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args.node = argv[optind];
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else if (optind < argc)
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return errmsg("more then one UBI device specified (use -h for help)");
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return 0;
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}
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static int translate_dev(libubi_t libubi, const char *node)
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{
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int err;
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err = ubi_probe_node(libubi, node);
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if (err == -1) {
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if (errno != ENODEV)
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return sys_errmsg("error while probing \"%s\"", node);
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return errmsg("\"%s\" does not correspond to any UBI device or volume", node);
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}
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if (err == 1) {
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struct ubi_dev_info dev_info;
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err = ubi_get_dev_info(libubi, node, &dev_info);
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if (err)
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return sys_errmsg("cannot get information about UBI device \"%s\"", node);
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args.devn = dev_info.dev_num;
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} else {
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struct ubi_vol_info vol_info;
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err = ubi_get_vol_info(libubi, node, &vol_info);
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if (err)
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return sys_errmsg("cannot get information about UBI volume \"%s\"", node);
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if (args.vol_id != -1)
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return errmsg("both volume character device node (\"%s\") and "
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"volume ID (%d) are specify, use only one of them"
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"(use -h for help)", node, args.vol_id);
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args.devn = vol_info.dev_num;
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args.vol_id = vol_info.vol_id;
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}
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return 0;
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}
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static int get_vol_id_by_name(libubi_t libubi, int dev_num, const char *name)
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{
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int err;
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struct ubi_vol_info vol_info;
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err = ubi_get_vol_info1_nm(libubi, dev_num, name, &vol_info);
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if (err)
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return sys_errmsg("cannot get information about volume \"%s\" on ubi%d\n", name, dev_num);
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args.vol_id = vol_info.vol_id;
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return 0;
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}
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static int print_vol_info(libubi_t libubi, int dev_num, int vol_id)
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{
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int err;
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struct ubi_vol_info vol_info;
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err = ubi_get_vol_info1(libubi, dev_num, vol_id, &vol_info);
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if (err)
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return sys_errmsg("cannot get information about UBI volume %d on ubi%d",
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vol_id, dev_num);
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printf("Volume ID: %d (on ubi%d)\n", vol_info.vol_id, vol_info.dev_num);
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printf("Type: %s\n",
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vol_info.type == UBI_DYNAMIC_VOLUME ? "dynamic" : "static");
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printf("Alignment: %d\n", vol_info.alignment);
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printf("Size: %d LEBs (", vol_info.rsvd_lebs);
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util_print_bytes(vol_info.rsvd_bytes, 0);
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printf(")\n");
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if (vol_info.type == UBI_STATIC_VOLUME) {
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printf("Data bytes: ");
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util_print_bytes(vol_info.data_bytes, 1);
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printf("\n");
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}
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printf("State: %s\n", vol_info.corrupted ? "corrupted" : "OK");
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printf("Name: %s\n", vol_info.name);
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printf("Character device major/minor: %d:%d\n",
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vol_info.major, vol_info.minor);
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return 0;
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}
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static int print_dev_info(libubi_t libubi, int dev_num, int all)
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{
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int i, err, first = 1;
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struct ubi_dev_info dev_info;
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struct ubi_vol_info vol_info;
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err = ubi_get_dev_info1(libubi, dev_num, &dev_info);
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if (err)
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return sys_errmsg("cannot get information about UBI device %d", dev_num);
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printf("ubi%d\n", dev_info.dev_num);
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printf("Volumes count: %d\n", dev_info.vol_count);
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printf("Logical eraseblock size: ");
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util_print_bytes(dev_info.leb_size, 0);
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printf("\n");
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printf("Total amount of logical eraseblocks: %d (", dev_info.total_lebs);
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util_print_bytes(dev_info.total_bytes, 0);
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printf(")\n");
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printf("Amount of available logical eraseblocks: %d (", dev_info.avail_lebs);
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util_print_bytes(dev_info.avail_bytes, 0);
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printf(")\n");
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printf("Maximum count of volumes %d\n", dev_info.max_vol_count);
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printf("Count of bad physical eraseblocks: %d\n", dev_info.bad_count);
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printf("Count of reserved physical eraseblocks: %d\n", dev_info.bad_rsvd);
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printf("Current maximum erase counter value: %lld\n", dev_info.max_ec);
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printf("Minimum input/output unit size: %d %s\n",
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dev_info.min_io_size, dev_info.min_io_size > 1 ? "bytes" : "byte");
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printf("Character device major/minor: %d:%d\n",
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dev_info.major, dev_info.minor);
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if (dev_info.vol_count == 0)
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return 0;
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printf("Present volumes: ");
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for (i = dev_info.lowest_vol_id;
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i <= dev_info.highest_vol_id; i++) {
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err = ubi_get_vol_info1(libubi, dev_info.dev_num, i, &vol_info);
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if (err == -1) {
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if (errno == ENOENT)
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continue;
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return sys_errmsg("libubi failed to probe volume %d on ubi%d",
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i, dev_info.dev_num);
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}
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if (!first)
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printf(", %d", i);
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else {
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printf("%d", i);
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first = 0;
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}
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}
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printf("\n");
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if (!all)
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return 0;
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first = 1;
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printf("\n");
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for (i = dev_info.lowest_vol_id;
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i <= dev_info.highest_vol_id; i++) {
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if(!first)
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printf("-----------------------------------\n");
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err = ubi_get_vol_info1(libubi, dev_info.dev_num, i, &vol_info);
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if (err == -1) {
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if (errno == ENOENT)
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continue;
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return sys_errmsg("libubi failed to probe volume %d on ubi%d",
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i, dev_info.dev_num);
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}
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first = 0;
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err = print_vol_info(libubi, dev_info.dev_num, i);
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if (err)
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return err;
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}
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return 0;
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}
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static int print_general_info(libubi_t libubi, int all)
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{
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int i, err, first = 1;
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struct ubi_info ubi_info;
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struct ubi_dev_info dev_info;
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err = ubi_get_info(libubi, &ubi_info);
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if (err)
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return sys_errmsg("cannot get UBI information");
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printf("UBI version: %d\n", ubi_info.version);
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printf("Count of UBI devices: %d\n", ubi_info.dev_count);
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if (ubi_info.ctrl_major != -1)
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printf("UBI control device major/minor: %d:%d\n",
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ubi_info.ctrl_major, ubi_info.ctrl_minor);
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else
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printf("UBI control device is not supported by this kernel\n");
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if (ubi_info.dev_count == 0)
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return 0;
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printf("Present UBI devices: ");
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for (i = ubi_info.lowest_dev_num;
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i <= ubi_info.highest_dev_num; i++) {
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err = ubi_get_dev_info1(libubi, i, &dev_info);
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if (err == -1) {
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if (errno == ENOENT)
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continue;
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printf("\n");
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return sys_errmsg("libubi failed to probe UBI device %d", i);
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}
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if (!first)
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printf(", ubi%d", i);
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else {
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printf("ubi%d", i);
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first = 0;
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}
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}
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printf("\n");
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if (!all)
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return 0;
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first = 1;
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printf("\n");
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for (i = ubi_info.lowest_dev_num;
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i <= ubi_info.highest_dev_num; i++) {
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if (!ubi_dev_present(libubi, i))
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continue;
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if(!first)
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printf("\n===================================\n\n");
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first = 0;
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err = print_dev_info(libubi, i, all);
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if (err)
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return err;
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}
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return 0;
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}
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int main(int argc, char * const argv[])
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{
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int err;
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libubi_t libubi;
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err = parse_opt(argc, argv);
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if (err)
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return -1;
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libubi = libubi_open();
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if (!libubi) {
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if (errno == 0)
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return errmsg("UBI is not present in the system");
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return sys_errmsg("cannot open libubi");
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}
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if (args.node) {
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/*
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* A character device was specified, translate this into UBI
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* device number and volume ID.
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*/
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err = translate_dev(libubi, args.node);
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if (err)
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goto out_libubi;
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}
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if (args.vol_name && args.devn == -1) {
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errmsg("volume name is specified, but UBI device number is not "
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"(use -h for help)\n");
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goto out_libubi;
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}
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if (args.vol_name) {
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err = get_vol_id_by_name(libubi, args.devn, args.vol_name);
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if (err)
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goto out_libubi;
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}
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if (args.vol_id != -1 && args.devn == -1) {
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errmsg("volume ID is specified, but UBI device number is not "
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"(use -h for help)\n");
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goto out_libubi;
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}
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if (args.devn != -1 && args.vol_id != -1) {
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print_vol_info(libubi, args.devn, args.vol_id);
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goto out;
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}
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if (args.devn == -1 && args.vol_id == -1)
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err = print_general_info(libubi, args.all);
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else if (args.devn != -1 && args.vol_id == -1)
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err = print_dev_info(libubi, args.devn, args.all);
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if (err)
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goto out_libubi;
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out:
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libubi_close(libubi);
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return 0;
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out_libubi:
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libubi_close(libubi);
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return -1;
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}
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