diff options
Diffstat (limited to 'ubi-utils/ubinfo.c')
| -rw-r--r-- | ubi-utils/ubinfo.c | 434 |
1 files changed, 434 insertions, 0 deletions
diff --git a/ubi-utils/ubinfo.c b/ubi-utils/ubinfo.c new file mode 100644 index 0000000..8e14e6e --- /dev/null +++ b/ubi-utils/ubinfo.c @@ -0,0 +1,434 @@ +/* + * Copyright (C) 2007, 2008 Nokia Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * 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., 51 + * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* + * An utility to get UBI information. + * + * Author: Artem Bityutskiy + */ + +#define PROGRAM_VERSION "1.1" +#define PROGRAM_NAME "ubinfo" + +#include <stdint.h> +#include <stdio.h> +#include <getopt.h> +#include <stdlib.h> +#include <string.h> + +#include <libubi.h> +#include "common.h" +#include "ubiutils-common.h" + +/* The variables below are set by command line arguments */ +struct args { + int devn; + int vol_id; + int all; + const char *node; + const char *vol_name; +}; + +static struct args args = { + .vol_id = -1, + .devn = -1, + .all = 0, + .node = NULL, + .vol_name = NULL, +}; + +static const char doc[] = PROGRAM_NAME " version " PROGRAM_VERSION + " - a tool to print UBI information."; + +static const char optionsstr[] = +"-d, --devn=<UBI device number> UBI device number to get information about\n" +"-n, --vol_id=<volume ID> ID of UBI volume to print information about\n" +"-N, --name=<volume name> name of UBI volume to print information about\n" +"-a, --all print information about all devices and volumes,\n" +" or about all volumes if the UBI device was\n" +" specified\n" +"-h, --help print help message\n" +"-V, --version print program version"; + +static const char usage[] = +"Usage 1: " PROGRAM_NAME " [-d <UBI device number>] [-n <volume ID> | -N <volume name>] [-a] [-h] [-V]\n" +"\t\t[--vol_id=<volume ID> | --name <volume name>] [--devn <UBI device number>] [--all] [--help] [--version]\n" +"Usage 2: " PROGRAM_NAME " <UBI device node file name> [-a] [-h] [-V] [--all] [--help] [--version]\n" +"Usage 3: " PROGRAM_NAME " <UBI volume node file name> [-h] [-V] [--help] [--version]\n\n" +"Example 1: " PROGRAM_NAME " - (no arguments) print general UBI information\n" +"Example 2: " PROGRAM_NAME " -d 1 - print information about UBI device number 1\n" +"Example 3: " PROGRAM_NAME " /dev/ubi0 -a - print information about all volumes of UBI\n" +" device /dev/ubi0\n" +"Example 4: " PROGRAM_NAME " /dev/ubi1_0 - print information about UBI volume /dev/ubi1_0\n" +"Example 5: " PROGRAM_NAME " -a - print all information\n"; + +static const struct option long_options[] = { + { .name = "devn", .has_arg = 1, .flag = NULL, .val = 'd' }, + { .name = "vol_id", .has_arg = 1, .flag = NULL, .val = 'n' }, + { .name = "name", .has_arg = 1, .flag = NULL, .val = 'N' }, + { .name = "all", .has_arg = 0, .flag = NULL, .val = 'a' }, + { .name = "help", .has_arg = 0, .flag = NULL, .val = 'h' }, + { .name = "version", .has_arg = 0, .flag = NULL, .val = 'V' }, + { NULL, 0, NULL, 0}, +}; + +static int parse_opt(int argc, char * const argv[]) +{ + while (1) { + int key, error = 0; + + key = getopt_long(argc, argv, "an:N:d:hV", long_options, NULL); + if (key == -1) + break; + + switch (key) { + case 'a': + args.all = 1; + break; + + case 'n': + args.vol_id = simple_strtoul(optarg, &error); + if (error || args.vol_id < 0) + return errmsg("bad volume ID: " "\"%s\"", optarg); + break; + + case 'N': + args.vol_name = optarg; + break; + + case 'd': + args.devn = simple_strtoul(optarg, &error); + if (error || args.devn < 0) + return errmsg("bad UBI device number: \"%s\"", optarg); + + break; + + case 'h': + printf("%s\n\n", doc); + printf("%s\n\n", usage); + printf("%s\n", optionsstr); + exit(EXIT_SUCCESS); + + case 'V': + fprintf(stderr, "%s\n", PROGRAM_VERSION); + exit(EXIT_SUCCESS); + + case ':': + return errmsg("parameter is missing"); + + default: + fprintf(stderr, "Use -h for help\n"); + return -1; + } + } + + if (optind == argc - 1) + args.node = argv[optind]; + else if (optind < argc) + return errmsg("more then one UBI device specified (use -h for help)"); + + return 0; +} + +static int translate_dev(libubi_t libubi, const char *node) +{ + int err; + + err = ubi_probe_node(libubi, node); + if (err == -1) { + if (errno != ENODEV) + return sys_errmsg("error while probing \"%s\"", node); + return errmsg("\"%s\" does not correspond to any UBI device or volume", node); + } + + if (err == 1) { + struct ubi_dev_info dev_info; + + err = ubi_get_dev_info(libubi, node, &dev_info); + if (err) + return sys_errmsg("cannot get information about UBI device \"%s\"", node); + + args.devn = dev_info.dev_num; + } else { + struct ubi_vol_info vol_info; + + err = ubi_get_vol_info(libubi, node, &vol_info); + if (err) + return sys_errmsg("cannot get information about UBI volume \"%s\"", node); + + if (args.vol_id != -1) + return errmsg("both volume character device node (\"%s\") and " + "volume ID (%d) are specify, use only one of them" + "(use -h for help)", node, args.vol_id); + + args.devn = vol_info.dev_num; + args.vol_id = vol_info.vol_id; + } + + return 0; +} + +static int get_vol_id_by_name(libubi_t libubi, int dev_num, const char *name) +{ + int err; + struct ubi_vol_info vol_info; + + err = ubi_get_vol_info1_nm(libubi, dev_num, name, &vol_info); + if (err) + return sys_errmsg("cannot get information about volume \"%s\" on ubi%d\n", name, dev_num); + + args.vol_id = vol_info.vol_id; + + return 0; +} + +static int print_vol_info(libubi_t libubi, int dev_num, int vol_id) +{ + int err; + struct ubi_vol_info vol_info; + + err = ubi_get_vol_info1(libubi, dev_num, vol_id, &vol_info); + if (err) + return sys_errmsg("cannot get information about UBI volume %d on ubi%d", + vol_id, dev_num); + + printf("Volume ID: %d (on ubi%d)\n", vol_info.vol_id, vol_info.dev_num); + printf("Type: %s\n", + vol_info.type == UBI_DYNAMIC_VOLUME ? "dynamic" : "static"); + printf("Alignment: %d\n", vol_info.alignment); + + printf("Size: %d LEBs (", vol_info.rsvd_lebs); + ubiutils_print_bytes(vol_info.rsvd_bytes, 0); + printf(")\n"); + + if (vol_info.type == UBI_STATIC_VOLUME) { + printf("Data bytes: "); + ubiutils_print_bytes(vol_info.data_bytes, 1); + printf("\n"); + } + printf("State: %s\n", vol_info.corrupted ? "corrupted" : "OK"); + printf("Name: %s\n", vol_info.name); + printf("Character device major/minor: %d:%d\n", + vol_info.major, vol_info.minor); + + return 0; +} + +static int print_dev_info(libubi_t libubi, int dev_num, int all) +{ + int i, err, first = 1; + struct ubi_dev_info dev_info; + struct ubi_vol_info vol_info; + + err = ubi_get_dev_info1(libubi, dev_num, &dev_info); + if (err) + return sys_errmsg("cannot get information about UBI device %d", dev_num); + + printf("ubi%d\n", dev_info.dev_num); + printf("Volumes count: %d\n", dev_info.vol_count); + printf("Logical eraseblock size: "); + ubiutils_print_bytes(dev_info.leb_size, 0); + printf("\n"); + + printf("Total amount of logical eraseblocks: %d (", dev_info.total_lebs); + ubiutils_print_bytes(dev_info.total_bytes, 0); + printf(")\n"); + + printf("Amount of available logical eraseblocks: %d (", dev_info.avail_lebs); + ubiutils_print_bytes(dev_info.avail_bytes, 0); + printf(")\n"); + + printf("Maximum count of volumes %d\n", dev_info.max_vol_count); + printf("Count of bad physical eraseblocks: %d\n", dev_info.bad_count); + printf("Count of reserved physical eraseblocks: %d\n", dev_info.bad_rsvd); + printf("Current maximum erase counter value: %lld\n", dev_info.max_ec); + printf("Minimum input/output unit size: %d %s\n", + dev_info.min_io_size, dev_info.min_io_size > 1 ? "bytes" : "byte"); + printf("Character device major/minor: %d:%d\n", + dev_info.major, dev_info.minor); + + if (dev_info.vol_count == 0) + return 0; + + printf("Present volumes: "); + for (i = dev_info.lowest_vol_id; + i <= dev_info.highest_vol_id; i++) { + err = ubi_get_vol_info1(libubi, dev_info.dev_num, i, &vol_info); + if (err == -1) { + if (errno == ENOENT) + continue; + + return sys_errmsg("libubi failed to probe volume %d on ubi%d", + i, dev_info.dev_num); + } + + if (!first) + printf(", %d", i); + else { + printf("%d", i); + first = 0; + } + } + printf("\n"); + + if (!all) + return 0; + + first = 1; + printf("\n"); + + for (i = dev_info.lowest_vol_id; + i <= dev_info.highest_vol_id; i++) { + if(!first) + printf("-----------------------------------\n"); + err = ubi_get_vol_info1(libubi, dev_info.dev_num, i, &vol_info); + if (err == -1) { + if (errno == ENOENT) + continue; + + return sys_errmsg("libubi failed to probe volume %d on ubi%d", + i, dev_info.dev_num); + } + first = 0; + + err = print_vol_info(libubi, dev_info.dev_num, i); + if (err) + return err; + } + + return 0; +} + +static int print_general_info(libubi_t libubi, int all) +{ + int i, err, first = 1; + struct ubi_info ubi_info; + struct ubi_dev_info dev_info; + + err = ubi_get_info(libubi, &ubi_info); + if (err) + return sys_errmsg("cannot get UBI information"); + + printf("UBI version: %d\n", ubi_info.version); + printf("Count of UBI devices: %d\n", ubi_info.dev_count); + if (ubi_info.ctrl_major != -1) + printf("UBI control device major/minor: %d:%d\n", + ubi_info.ctrl_major, ubi_info.ctrl_minor); + else + printf("UBI control device is not supported by this kernel\n"); + + if (ubi_info.dev_count == 0) + return 0; + + printf("Present UBI devices: "); + for (i = ubi_info.lowest_dev_num; + i <= ubi_info.highest_dev_num; i++) { + err = ubi_get_dev_info1(libubi, i, &dev_info); + if (err == -1) { + if (errno == ENOENT) + continue; + + printf("\n"); + return sys_errmsg("libubi failed to probe UBI device %d", i); + } + + if (!first) + printf(", ubi%d", i); + else { + printf("ubi%d", i); + first = 0; + } + } + printf("\n"); + + if (!all) + return 0; + + first = 1; + printf("\n"); + + for (i = ubi_info.lowest_dev_num; + i <= ubi_info.highest_dev_num; i++) { + if(!first) + printf("\n===================================\n\n"); + first = 0; + err = print_dev_info(libubi, i, all); + if (err) + return err; + } + return 0; +} + +int main(int argc, char * const argv[]) +{ + int err; + libubi_t libubi; + + err = parse_opt(argc, argv); + if (err) + return -1; + + libubi = libubi_open(); + if (!libubi) { + if (errno == 0) + return errmsg("UBI is not present in the system"); + return sys_errmsg("cannot open libubi"); + } + + if (args.node) { + /* + * A character device was specified, translate this into UBI + * device number and volume ID. + */ + err = translate_dev(libubi, args.node); + if (err) + goto out_libubi; + } + + if (args.vol_name) { + err = get_vol_id_by_name(libubi, args.devn, args.vol_name); + if (err) + goto out_libubi; + } + + if (args.vol_id != -1 && args.devn == -1) { + errmsg("volume ID is specified, but UBI device number is not " + "(use -h for help)\n"); + goto out_libubi; + } + + if (args.devn != -1 && args.vol_id != -1) { + print_vol_info(libubi, args.devn, args.vol_id); + goto out; + } + + if (args.devn == -1 && args.vol_id == -1) + err = print_general_info(libubi, args.all); + else if (args.devn != -1 && args.vol_id == -1) + err = print_dev_info(libubi, args.devn, args.all); + + if (err) + goto out_libubi; + +out: + libubi_close(libubi); + return 0; + +out_libubi: + libubi_close(libubi); + return -1; +} |