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Diffstat (limited to 'ubi-utils/src/ubiformat.c')
-rw-r--r--ubi-utils/src/ubiformat.c950
1 files changed, 0 insertions, 950 deletions
diff --git a/ubi-utils/src/ubiformat.c b/ubi-utils/src/ubiformat.c
deleted file mode 100644
index c4b944a..0000000
--- a/ubi-utils/src/ubiformat.c
+++ /dev/null
@@ -1,950 +0,0 @@
-/*
- * Copyright (C) 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 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 format MTD devices into UBI and flash UBI images.
- *
- * Author: Artem Bityutskiy
- */
-
-/*
- * Maximum amount of consequtive eraseblocks which are considered as normal by
- * this utility. Otherwise it is assume that something is wrong with the flash
- * or the driver, and eraseblocks are stopped being marked as bad.
- */
-#define MAX_CONSECUTIVE_BAD_BLOCKS 4
-
-#define PROGRAM_VERSION "1.5"
-#define PROGRAM_NAME "ubiformat"
-
-#include <sys/stat.h>
-#include <unistd.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <getopt.h>
-#include <fcntl.h>
-
-#include <libubi.h>
-#include <libmtd.h>
-#include <libscan.h>
-#include <libubigen.h>
-#include <mtd_swab.h>
-#include <crc32.h>
-#include "common.h"
-#include "ubiutils-common.h"
-
-/* The variables below are set by command line arguments */
-struct args {
- unsigned int yes:1;
- unsigned int quiet:1;
- unsigned int verbose:1;
- unsigned int override_ec:1;
- unsigned int novtbl:1;
- unsigned int manual_subpage;
- int subpage_size;
- int vid_hdr_offs;
- int ubi_ver;
- uint32_t image_seq;
- off_t image_sz;
- long long ec;
- const char *image;
- const char *node;
- int node_fd;
-};
-
-static struct args args =
-{
- .ubi_ver = 1,
-};
-
-static const char doc[] = PROGRAM_NAME " version " PROGRAM_VERSION
- " - a tool to format MTD devices and flash UBI images";
-
-static const char optionsstr[] =
-"-s, --sub-page-size=<bytes> minimum input/output unit used for UBI\n"
-" headers, e.g. sub-page size in case of NAND\n"
-" flash (equivalent to the minimum input/output\n"
-" unit size by default)\n"
-"-O, --vid-hdr-offset=<offs> offset if the VID header from start of the\n"
-" physical eraseblock (default is the next\n"
-" minimum I/O unit or sub-page after the EC\n"
-" header)\n"
-"-n, --no-volume-table only erase all eraseblock and preserve erase\n"
-" counters, do not write empty volume table\n"
-"-f, --flash-image=<file> flash image file, or '-' for stdin\n"
-"-S, --image-size=<bytes> bytes in input, if not reading from file\n"
-"-e, --erase-counter=<value> use <value> as the erase counter value for all\n"
-" eraseblocks\n"
-"-x, --ubi-ver=<num> UBI version number to put to EC headers\n"
-" (default is 1)\n"
-"-Q, --image-seq=<num> 32-bit UBI image sequence number to use\n"
-" (by default a random number is picked)\n"
-"-y, --yes assume the answer is \"yes\" for all question\n"
-" this program would otherwise ask\n"
-"-q, --quiet suppress progress percentage information\n"
-"-v, --verbose be verbose\n"
-"-h, -?, --help print help message\n"
-"-V, --version print program version\n";
-
-static const char usage[] =
-"Usage: " PROGRAM_NAME " <MTD device node file name> [-s <bytes>] [-O <offs>] [-n]\n"
-"\t\t\t[-f <file>] [-S <bytes>] [-e <value>] [-x <num>] [-y] [-q] [-v] [-h] [-v]\n"
-"\t\t\t[--sub-page-size=<bytes>] [--vid-hdr-offset=<offs>] [--no-volume-table]\n"
-"\t\t\t[--flash-image=<file>] [--image-size=<bytes>] [--erase-counter=<value>]\n"
-"\t\t\t[--ubi-ver=<num>] [--yes] [--quiet] [--verbose] [--help] [--version]\n\n"
-"Example 1: " PROGRAM_NAME " /dev/mtd0 -y - format MTD device number 0 and do\n"
-" not ask questions.\n"
-"Example 2: " PROGRAM_NAME " /dev/mtd0 -q -e 0 - format MTD device number 0,\n"
-" be quiet and force erase counter value 0.";
-
-static const struct option long_options[] = {
- { .name = "sub-page-size", .has_arg = 1, .flag = NULL, .val = 's' },
- { .name = "vid-hdr-offset", .has_arg = 1, .flag = NULL, .val = 'O' },
- { .name = "no-volume-table", .has_arg = 0, .flag = NULL, .val = 'n' },
- { .name = "flash-image", .has_arg = 1, .flag = NULL, .val = 'f' },
- { .name = "image-size", .has_arg = 1, .flag = NULL, .val = 'S' },
- { .name = "yes", .has_arg = 0, .flag = NULL, .val = 'y' },
- { .name = "erase-counter", .has_arg = 1, .flag = NULL, .val = 'e' },
- { .name = "quiet", .has_arg = 0, .flag = NULL, .val = 'q' },
- { .name = "verbose", .has_arg = 0, .flag = NULL, .val = 'v' },
- { .name = "ubi-ver", .has_arg = 1, .flag = NULL, .val = 'x' },
- { .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[])
-{
- ubiutils_srand();
- args.image_seq = rand();
-
- while (1) {
- int key, error = 0;
- unsigned long int image_seq;
-
- key = getopt_long(argc, argv, "nh?Vyqve:x:s:O:f:S:", long_options, NULL);
- if (key == -1)
- break;
-
- switch (key) {
- case 's':
- args.subpage_size = ubiutils_get_bytes(optarg);
- if (args.subpage_size <= 0)
- return errmsg("bad sub-page size: \"%s\"", optarg);
- if (!is_power_of_2(args.subpage_size))
- return errmsg("sub-page size should be power of 2");
- break;
-
- case 'O':
- args.vid_hdr_offs = simple_strtoul(optarg, &error);
- if (error || args.vid_hdr_offs <= 0)
- return errmsg("bad VID header offset: \"%s\"", optarg);
- break;
-
- case 'e':
- args.ec = simple_strtoull(optarg, &error);
- if (error || args.ec < 0)
- return errmsg("bad erase counter value: \"%s\"", optarg);
- if (args.ec >= EC_MAX)
- return errmsg("too high erase %llu, counter, max is %u", args.ec, EC_MAX);
- args.override_ec = 1;
- break;
-
- case 'f':
- args.image = optarg;
- break;
-
- case 'S':
- args.image_sz = ubiutils_get_bytes(optarg);
- if (args.image_sz <= 0)
- return errmsg("bad image-size: \"%s\"", optarg);
- break;
-
- case 'n':
- args.novtbl = 1;
- break;
-
- case 'y':
- args.yes = 1;
- break;
-
- case 'q':
- args.quiet = 1;
- break;
-
- case 'x':
- args.ubi_ver = simple_strtoul(optarg, &error);
- if (error || args.ubi_ver < 0)
- return errmsg("bad UBI version: \"%s\"", optarg);
- break;
-
- case 'Q':
- image_seq = simple_strtoul(optarg, &error);
- if (error || image_seq > 0xFFFFFFFF)
- return errmsg("bad UBI image sequence number: \"%s\"", optarg);
- args.image_seq = image_seq;
- break;
-
-
- case 'v':
- args.verbose = 1;
- break;
-
- case 'V':
- fprintf(stderr, "%s\n", PROGRAM_VERSION);
- exit(EXIT_SUCCESS);
-
- case 'h':
- case '?':
- printf("%s\n\n", doc);
- printf("%s\n\n", usage);
- printf("%s\n", optionsstr);
- exit(EXIT_SUCCESS);
-
- case ':':
- return errmsg("parameter is missing");
-
- default:
- fprintf(stderr, "Use -h for help\n");
- return -1;
- }
- }
-
- if (args.quiet && args.verbose)
- return errmsg("using \"-q\" and \"-v\" at the same time does not make sense");
-
- if (optind == argc)
- return errmsg("MTD device name was not specified (use -h for help)");
- else if (optind != argc - 1)
- return errmsg("more then one MTD device specified (use -h for help)");
-
- if (args.image && args.novtbl)
- return errmsg("-n cannot be used together with -f");
-
-
- args.node = argv[optind];
- return 0;
-}
-
-static int want_exit(void)
-{
- char buf[4];
-
- while (1) {
- normsg_cont("continue? (yes/no) ");
- if (scanf("%3s", buf) == EOF) {
- sys_errmsg("scanf returned unexpected EOF, assume \"yes\"");
- return 1;
- }
- if (!strncmp(buf, "yes", 3) || !strncmp(buf, "y", 1))
- return 0;
- if (!strncmp(buf, "no", 2) || !strncmp(buf, "n", 1))
- return 1;
- }
-}
-
-static int answer_is_yes(void)
-{
- char buf[4];
-
- while (1) {
- if (scanf("%3s", buf) == EOF) {
- sys_errmsg("scanf returned unexpected EOF, assume \"no\"");
- return 0;
- }
- if (!strncmp(buf, "yes", 3) || !strncmp(buf, "y", 1))
- return 1;
- if (!strncmp(buf, "no", 2) || !strncmp(buf, "n", 1))
- return 0;
- }
-}
-
-static void print_bad_eraseblocks(const struct mtd_dev_info *mtd,
- const struct ubi_scan_info *si)
-{
- int first = 1, eb;
-
- if (si->bad_cnt == 0)
- return;
-
- normsg_cont("%d bad eraseblocks found, numbers: ", si->bad_cnt);
- for (eb = 0; eb < mtd->eb_cnt; eb++) {
- if (si->ec[eb] != EB_BAD)
- continue;
- if (first) {
- printf("%d", eb);
- first = 0;
- } else
- printf(", %d", eb);
- }
- printf("\n");
-}
-
-static int change_ech(struct ubi_ec_hdr *hdr, uint32_t image_seq,
- long long ec)
-{
- uint32_t crc;
-
- /* Check the EC header */
- if (be32_to_cpu(hdr->magic) != UBI_EC_HDR_MAGIC)
- return errmsg("bad UBI magic %#08x, should be %#08x",
- be32_to_cpu(hdr->magic), UBI_EC_HDR_MAGIC);
-
- crc = mtd_crc32(UBI_CRC32_INIT, hdr, UBI_EC_HDR_SIZE_CRC);
- if (be32_to_cpu(hdr->hdr_crc) != crc)
- return errmsg("bad CRC %#08x, should be %#08x\n",
- crc, be32_to_cpu(hdr->hdr_crc));
-
- hdr->image_seq = cpu_to_be32(image_seq);
- hdr->ec = cpu_to_be64(ec);
- crc = mtd_crc32(UBI_CRC32_INIT, hdr, UBI_EC_HDR_SIZE_CRC);
- hdr->hdr_crc = cpu_to_be32(crc);
-
- return 0;
-}
-
-static int drop_ffs(const struct mtd_dev_info *mtd, const void *buf, int len)
-{
- int i;
-
- for (i = len - 1; i >= 0; i--)
- if (((const uint8_t *)buf)[i] != 0xFF)
- break;
-
- /* The resulting length must be aligned to the minimum flash I/O size */
- len = i + 1;
- len = (len + mtd->min_io_size - 1) / mtd->min_io_size;
- len *= mtd->min_io_size;
- return len;
-}
-
-static int open_file(off_t *sz)
-{
- int fd;
-
- if (!strcmp(args.image, "-")) {
- if (args.image_sz == 0)
- return errmsg("must use '-S' with non-zero value when reading from stdin");
-
- *sz = args.image_sz;
- fd = dup(STDIN_FILENO);
- if (fd < 0)
- return sys_errmsg("failed to dup stdin");
- } else {
- struct stat st;
-
- if (stat(args.image, &st))
- return sys_errmsg("cannot open \"%s\"", args.image);
-
- *sz = st.st_size;
- fd = open(args.image, O_RDONLY);
- if (fd == -1)
- return sys_errmsg("cannot open \"%s\"", args.image);
- }
-
- return fd;
-}
-
-static int read_all(int fd, void *buf, size_t len)
-{
- while (len > 0) {
- ssize_t l = read(fd, buf, len);
- if (l == 0)
- return errmsg("eof reached; %zu bytes remaining", len);
- else if (l > 0) {
- buf += l;
- len -= l;
- } else if (errno == EINTR || errno == EAGAIN)
- continue;
- else
- return sys_errmsg("reading failed; %zu bytes remaining", len);
- }
-
- return 0;
-}
-
-/*
- * Returns %-1 if consecutive bad blocks exceeds the
- * MAX_CONSECUTIVE_BAD_BLOCKS and returns %0 otherwise.
- */
-static int consecutive_bad_check(int eb)
-{
- static int consecutive_bad_blocks = 1;
- static int prev_bb = -1;
-
- if (prev_bb == -1)
- prev_bb = eb;
-
- if (eb == prev_bb + 1)
- consecutive_bad_blocks += 1;
- else
- consecutive_bad_blocks = 1;
-
- prev_bb = eb;
-
- if (consecutive_bad_blocks >= MAX_CONSECUTIVE_BAD_BLOCKS) {
- if (!args.quiet)
- printf("\n");
- return errmsg("consecutive bad blocks exceed limit: %d, bad flash?",
- MAX_CONSECUTIVE_BAD_BLOCKS);
- }
-
- return 0;
-}
-
-/* TODO: we should actually torture the PEB before marking it as bad */
-static int mark_bad(const struct mtd_dev_info *mtd, struct ubi_scan_info *si, int eb)
-{
- int err;
-
- if (!args.yes) {
- normsg_cont("mark it as bad? Continue (yes/no) ");
- if (!answer_is_yes())
- return -1;
- }
-
- if (!args.quiet)
- normsg_cont("marking block %d bad", eb);
-
- if (!args.quiet)
- printf("\n");
-
- if (!mtd->bb_allowed) {
- if (!args.quiet)
- printf("\n");
- return errmsg("bad blocks not supported by this flash");
- }
-
- err = mtd_mark_bad(mtd, args.node_fd, eb);
- if (err)
- return err;
-
- si->bad_cnt += 1;
- si->ec[eb] = EB_BAD;
-
- return consecutive_bad_check(eb);
-}
-
-static int flash_image(libmtd_t libmtd, const struct mtd_dev_info *mtd,
- const struct ubigen_info *ui, struct ubi_scan_info *si)
-{
- int fd, img_ebs, eb, written_ebs = 0, divisor;
- off_t st_size;
-
- fd = open_file(&st_size);
- if (fd < 0)
- return fd;
-
- img_ebs = st_size / mtd->eb_size;
-
- if (img_ebs > si->good_cnt) {
- sys_errmsg("file \"%s\" is too large (%lld bytes)",
- args.image, (long long)st_size);
- goto out_close;
- }
-
- if (st_size % mtd->eb_size) {
- return sys_errmsg("file \"%s\" (size %lld bytes) is not multiple of ""eraseblock size (%d bytes)",
- args.image, (long long)st_size, mtd->eb_size);
- goto out_close;
- }
-
- verbose(args.verbose, "will write %d eraseblocks", img_ebs);
- divisor = img_ebs;
- for (eb = 0; eb < mtd->eb_cnt; eb++) {
- int err, new_len;
- char buf[mtd->eb_size];
- long long ec;
-
- if (!args.quiet && !args.verbose) {
- printf("\r" PROGRAM_NAME ": flashing eraseblock %d -- %2lld %% complete ",
- eb, (long long)(eb + 1) * 100 / divisor);
- fflush(stdout);
- }
-
- if (si->ec[eb] == EB_BAD) {
- divisor += 1;
- continue;
- }
-
- if (args.verbose) {
- normsg_cont("eraseblock %d: erase", eb);
- fflush(stdout);
- }
-
- err = mtd_erase(libmtd, mtd, args.node_fd, eb);
- if (err) {
- if (!args.quiet)
- printf("\n");
- sys_errmsg("failed to erase eraseblock %d", eb);
-
- if (errno != EIO)
- goto out_close;
-
- if (mark_bad(mtd, si, eb))
- goto out_close;
-
- continue;
- }
-
- err = read_all(fd, buf, mtd->eb_size);
- if (err) {
- sys_errmsg("failed to read eraseblock %d from \"%s\"",
- written_ebs, args.image);
- goto out_close;
- }
-
- if (args.override_ec)
- ec = args.ec;
- else if (si->ec[eb] <= EC_MAX)
- ec = si->ec[eb] + 1;
- else
- ec = si->mean_ec;
-
- if (args.verbose) {
- printf(", change EC to %lld", ec);
- fflush(stdout);
- }
-
- err = change_ech((struct ubi_ec_hdr *)buf, ui->image_seq, ec);
- if (err) {
- errmsg("bad EC header at eraseblock %d of \"%s\"",
- written_ebs, args.image);
- goto out_close;
- }
-
- if (args.verbose) {
- printf(", write data\n");
- fflush(stdout);
- }
-
- new_len = drop_ffs(mtd, buf, mtd->eb_size);
-
- err = mtd_write(mtd, args.node_fd, eb, 0, buf, new_len);
- if (err) {
- sys_errmsg("cannot write eraseblock %d", eb);
-
- if (errno != EIO)
- goto out_close;
-
- err = mtd_torture(libmtd, mtd, args.node_fd, eb);
- if (err) {
- if (mark_bad(mtd, si, eb))
- goto out_close;
- }
- continue;
- }
- if (++written_ebs >= img_ebs)
- break;
- }
-
- if (!args.quiet && !args.verbose)
- printf("\n");
- close(fd);
- return eb + 1;
-
-out_close:
- close(fd);
- return -1;
-}
-
-static int format(libmtd_t libmtd, const struct mtd_dev_info *mtd,
- const struct ubigen_info *ui, struct ubi_scan_info *si,
- int start_eb, int novtbl)
-{
- int eb, err, write_size;
- struct ubi_ec_hdr *hdr;
- struct ubi_vtbl_record *vtbl;
- int eb1 = -1, eb2 = -1;
- long long ec1 = -1, ec2 = -1;
-
- write_size = UBI_EC_HDR_SIZE + mtd->subpage_size - 1;
- write_size /= mtd->subpage_size;
- write_size *= mtd->subpage_size;
- hdr = malloc(write_size);
- if (!hdr)
- return sys_errmsg("cannot allocate %d bytes of memory", write_size);
- memset(hdr, 0xFF, write_size);
-
- for (eb = start_eb; eb < mtd->eb_cnt; eb++) {
- long long ec;
-
- if (!args.quiet && !args.verbose) {
- printf("\r" PROGRAM_NAME ": formatting eraseblock %d -- %2lld %% complete ",
- eb, (long long)(eb + 1 - start_eb) * 100 / (mtd->eb_cnt - start_eb));
- fflush(stdout);
- }
-
- if (si->ec[eb] == EB_BAD)
- continue;
-
- if (args.override_ec)
- ec = args.ec;
- else if (si->ec[eb] <= EC_MAX)
- ec = si->ec[eb] + 1;
- else
- ec = si->mean_ec;
- ubigen_init_ec_hdr(ui, hdr, ec);
-
- if (args.verbose) {
- normsg_cont("eraseblock %d: erase", eb);
- fflush(stdout);
- }
-
- err = mtd_erase(libmtd, mtd, args.node_fd, eb);
- if (err) {
- if (!args.quiet)
- printf("\n");
-
- sys_errmsg("failed to erase eraseblock %d", eb);
- if (errno != EIO)
- goto out_free;
-
- if (mark_bad(mtd, si, eb))
- goto out_free;
- continue;
- }
-
- if ((eb1 == -1 || eb2 == -1) && !novtbl) {
- if (eb1 == -1) {
- eb1 = eb;
- ec1 = ec;
- } else if (eb2 == -1) {
- eb2 = eb;
- ec2 = ec;
- }
- if (args.verbose)
- printf(", do not write EC, leave for vtbl\n");
- continue;
- }
-
- if (args.verbose) {
- printf(", write EC %lld\n", ec);
- fflush(stdout);
- }
-
- err = mtd_write(mtd, args.node_fd, eb, 0, hdr, write_size);
- if (err) {
- if (!args.quiet && !args.verbose)
- printf("\n");
- sys_errmsg("cannot write EC header (%d bytes buffer) to eraseblock %d",
- write_size, eb);
-
- if (errno != EIO) {
- if (!args.subpage_size != mtd->min_io_size)
- normsg("may be sub-page size is "
- "incorrect?");
- goto out_free;
- }
-
- err = mtd_torture(libmtd, mtd, args.node_fd, eb);
- if (err) {
- if (mark_bad(mtd, si, eb))
- goto out_free;
- }
- continue;
-
- }
- }
-
- if (!args.quiet && !args.verbose)
- printf("\n");
-
- if (!novtbl) {
- if (eb1 == -1 || eb2 == -1) {
- errmsg("no eraseblocks for volume table");
- goto out_free;
- }
-
- verbose(args.verbose, "write volume table to eraseblocks %d and %d", eb1, eb2);
- vtbl = ubigen_create_empty_vtbl(ui);
- if (!vtbl)
- goto out_free;
-
- err = ubigen_write_layout_vol(ui, eb1, eb2, ec1, ec2, vtbl,
- args.node_fd);
- free(vtbl);
- if (err) {
- errmsg("cannot write layout volume");
- goto out_free;
- }
- }
-
- free(hdr);
- return 0;
-
-out_free:
- free(hdr);
- return -1;
-}
-
-int main(int argc, char * const argv[])
-{
- int err, verbose;
- libmtd_t libmtd;
- struct mtd_info mtd_info;
- struct mtd_dev_info mtd;
- libubi_t libubi;
- struct ubigen_info ui;
- struct ubi_scan_info *si;
-
- libmtd = libmtd_open();
- if (!libmtd)
- return errmsg("MTD subsystem is not present");
-
- err = parse_opt(argc, argv);
- if (err)
- goto out_close_mtd;
-
- err = mtd_get_info(libmtd, &mtd_info);
- if (err) {
- if (errno == ENODEV)
- errmsg("MTD is not present");
- sys_errmsg("cannot get MTD information");
- goto out_close_mtd;
- }
-
- err = mtd_get_dev_info(libmtd, args.node, &mtd);
- if (err) {
- sys_errmsg("cannot get information about \"%s\"", args.node);
- goto out_close_mtd;
- }
-
- if (!is_power_of_2(mtd.min_io_size)) {
- errmsg("min. I/O size is %d, but should be power of 2",
- mtd.min_io_size);
- goto out_close;
- }
-
- if (!mtd_info.sysfs_supported) {
- /*
- * Linux kernels older than 2.6.30 did not support sysfs
- * interface, and it is impossible to find out sub-page
- * size in these kernels. This is why users should
- * provide -s option.
- */
- if (args.subpage_size == 0) {
- warnmsg("your MTD system is old and it is impossible "
- "to detect sub-page size. Use -s to get rid "
- "of this warning");
- normsg("assume sub-page to be %d", mtd.subpage_size);
- } else {
- mtd.subpage_size = args.subpage_size;
- args.manual_subpage = 1;
- }
- } else if (args.subpage_size && args.subpage_size != mtd.subpage_size) {
- mtd.subpage_size = args.subpage_size;
- args.manual_subpage = 1;
- }
-
- if (args.manual_subpage) {
- /* Do some sanity check */
- if (args.subpage_size > mtd.min_io_size) {
- errmsg("sub-page cannot be larger than min. I/O unit");
- goto out_close;
- }
-
- if (mtd.min_io_size % args.subpage_size) {
- errmsg("min. I/O unit size should be multiple of "
- "sub-page size");
- goto out_close;
- }
- }
-
- args.node_fd = open(args.node, O_RDWR);
- if (args.node_fd == -1) {
- sys_errmsg("cannot open \"%s\"", args.node);
- goto out_close_mtd;
- }
-
- /* Validate VID header offset if it was specified */
- if (args.vid_hdr_offs != 0) {
- if (args.vid_hdr_offs % 8) {
- errmsg("VID header offset has to be multiple of min. I/O unit size");
- goto out_close;
- }
- if (args.vid_hdr_offs + (int)UBI_VID_HDR_SIZE > mtd.eb_size) {
- errmsg("bad VID header offset");
- goto out_close;
- }
- }
-
- if (!mtd.writable) {
- errmsg("mtd%d (%s) is a read-only device", mtd.mtd_num, args.node);
- goto out_close;
- }
-
- /* Make sure this MTD device is not attached to UBI */
- libubi = libubi_open();
- if (libubi) {
- int ubi_dev_num;
-
- err = mtd_num2ubi_dev(libubi, mtd.mtd_num, &ubi_dev_num);
- libubi_close(libubi);
- if (!err) {
- errmsg("please, first detach mtd%d (%s) from ubi%d",
- mtd.mtd_num, args.node, ubi_dev_num);
- goto out_close;
- }
- }
-
- if (!args.quiet) {
- normsg_cont("mtd%d (%s), size ", mtd.mtd_num, mtd.type_str);
- ubiutils_print_bytes(mtd.size, 1);
- printf(", %d eraseblocks of ", mtd.eb_cnt);
- ubiutils_print_bytes(mtd.eb_size, 1);
- printf(", min. I/O size %d bytes\n", mtd.min_io_size);
- }
-
- if (args.quiet)
- verbose = 0;
- else if (args.verbose)
- verbose = 2;
- else
- verbose = 1;
- err = ubi_scan(&mtd, args.node_fd, &si, verbose);
- if (err) {
- errmsg("failed to scan mtd%d (%s)", mtd.mtd_num, args.node);
- goto out_close;
- }
-
- if (si->good_cnt == 0) {
- errmsg("all %d eraseblocks are bad", si->bad_cnt);
- goto out_free;
- }
-
- if (si->good_cnt < 2 && (!args.novtbl || args.image)) {
- errmsg("too few non-bad eraseblocks (%d) on mtd%d",
- si->good_cnt, mtd.mtd_num);
- goto out_free;
- }
-
- if (!args.quiet) {
- if (si->ok_cnt)
- normsg("%d eraseblocks have valid erase counter, mean value is %lld",
- si->ok_cnt, si->mean_ec);
- if (si->empty_cnt)
- normsg("%d eraseblocks are supposedly empty", si->empty_cnt);
- if (si->corrupted_cnt)
- normsg("%d corrupted erase counters", si->corrupted_cnt);
- print_bad_eraseblocks(&mtd, si);
- }
-
- if (si->alien_cnt) {
- if (!args.yes || !args.quiet)
- warnmsg("%d of %d eraseblocks contain non-ubifs data",
- si->alien_cnt, si->good_cnt);
- if (!args.yes && want_exit()) {
- if (args.yes && !args.quiet)
- printf("yes\n");
- goto out_free;
- }
- }
-
- if (!args.override_ec && si->empty_cnt < si->good_cnt) {
- int percent = ((double)si->ok_cnt)/si->good_cnt * 100;
-
- /*
- * Make sure the majority of eraseblocks have valid
- * erase counters.
- */
- if (percent < 50) {
- if (!args.yes || !args.quiet)
- warnmsg("only %d of %d eraseblocks have valid erase counter",
- si->ok_cnt, si->good_cnt);
- normsg("erase counter 0 will be used for all eraseblocks");
- normsg("note, arbitrary erase counter value may be specified using -e option");
- if (!args.yes && want_exit()) {
- if (args.yes && !args.quiet)
- printf("yes\n");
- goto out_free;
- }
- args.ec = 0;
- args.override_ec = 1;
- } else if (percent < 95) {
- if (!args.yes || !args.quiet)
- warnmsg("only %d of %d eraseblocks have valid erase counter",
- si->ok_cnt, si->good_cnt);
- normsg("mean erase counter %lld will be used for the rest of eraseblock",
- si->mean_ec);
- if (!args.yes && want_exit()) {
- if (args.yes && !args.quiet)
- printf("yes\n");
- goto out_free;
- }
- args.ec = si->mean_ec;
- args.override_ec = 1;
- }
- }
-
- if (!args.quiet && args.override_ec)
- normsg("use erase counter %lld for all eraseblocks", args.ec);
-
- ubigen_info_init(&ui, mtd.eb_size, mtd.min_io_size, mtd.subpage_size,
- args.vid_hdr_offs, args.ubi_ver, args.image_seq);
-
- if (si->vid_hdr_offs != -1 && ui.vid_hdr_offs != si->vid_hdr_offs) {
- /*
- * Hmm, what we read from flash and what we calculated using
- * min. I/O unit size and sub-page size differs.
- */
- if (!args.yes || !args.quiet) {
- warnmsg("VID header and data offsets on flash are %d and %d, "
- "which is different to requested offsets %d and %d",
- si->vid_hdr_offs, si->data_offs, ui.vid_hdr_offs,
- ui.data_offs);
- normsg_cont("use new offsets %d and %d? (yes/no) ",
- ui.vid_hdr_offs, ui.data_offs);
- }
- if (args.yes || answer_is_yes()) {
- if (args.yes && !args.quiet)
- printf("yes\n");
- } else
- ubigen_info_init(&ui, mtd.eb_size, mtd.min_io_size, 0,
- si->vid_hdr_offs, args.ubi_ver,
- args.image_seq);
- normsg("use offsets %d and %d", ui.vid_hdr_offs, ui.data_offs);
- }
-
- if (args.image) {
- err = flash_image(libmtd, &mtd, &ui, si);
- if (err < 0)
- goto out_free;
-
- err = format(libmtd, &mtd, &ui, si, err, 1);
- if (err)
- goto out_free;
- } else {
- err = format(libmtd, &mtd, &ui, si, 0, args.novtbl);
- if (err)
- goto out_free;
- }
-
- ubi_scan_free(si);
- close(args.node_fd);
- libmtd_close(libmtd);
- return 0;
-
-out_free:
- ubi_scan_free(si);
-out_close:
- close(args.node_fd);
-out_close_mtd:
- libmtd_close(libmtd);
- return -1;
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 15:09:16 +0000