Ejemplo n.º 1
0
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, skip_data_read = 0;
	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;
		}

		if (!skip_data_read) {
			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;
			}
		}
		skip_data_read = 0;

		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(libmtd, mtd, args.node_fd, eb, 0, buf, new_len,
				NULL, 0, 0);
		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;
			}

			/*
			 * We have to make sure that we do not read next block
			 * of data from the input image or stdin - we have to
			 * write buf first instead.
			 */
			skip_data_read = 1;
			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;
}
Ejemplo n.º 2
0
static int flash_image(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, ret = -1;
	off_t st_size;
	char *buf = NULL;

	fd = open_file(&st_size);
	if (fd < 0)
		return fd;

	buf = malloc(mtd->eb_size);
	if (!buf) {
		sys_errmsg("cannot allocate %d bytes of memory", mtd->eb_size);
		goto out_close;
	}

	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) {
		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;
	}

	if (st_size == 0) {
		sys_errmsg("file \"%s\" has size 0 bytes", args.image);
		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;
		long long ec;

		if (!args.quiet && !args.verbose) {
			printf("\r" PROGRAM_NAME ": flashing eraseblock %d -- %2u %% complete  ",
			       eb, (eb + 1) * 100 / mtd->eb_cnt);
		}

		if (si->ec[eb] == EB_BAD) {
			divisor += 1;
			continue;
		}

		if (args.verbose) {
			normsg_cont("eraseblock %d: erase", eb);
		}

		err = libmtd_erase(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_full(fd, buf, mtd->eb_size);
		if (err < 0) {
			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);
		}

		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");
		}

		new_len = drop_ffs(mtd, buf, mtd->eb_size);

		err = libmtd_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(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");

	ret = eb + 1;

out_close:
	free(buf);
	close(fd);
	return ret;
}
Ejemplo n.º 3
0
static int flash_image(const struct mtd_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(mtd, si, &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(mtd, eb);
		if (err) {
			sys_errmsg("failed to erase eraseblock %d", eb);
			goto out_close;
		}

		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 (si->ec[eb] <= EC_MAX)
			ec = si->ec[eb] + 1;
		else if (!args.override_ec)
			ec = si->mean_ec;
		else
			ec = args.ec;

		if (args.verbose) {
			printf(", change EC to %lld", ec);
			fflush(stdout);
		}

		err = change_ec((struct ubi_ec_hdr *)buf, 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, eb, 0, buf, new_len);
		if (err) {
			sys_errmsg("cannot write eraseblock %d", eb);
			goto out_close;
		}
		if (++written_ebs >= img_ebs)
			break;
	}

	if (!args.quiet && !args.verbose)
		printf("\n");
	close(fd);
	return eb + 1;

out_close:
	close(fd);
	return -1;
}