907 lines
24 KiB
C
907 lines
24 KiB
C
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/* $NetBSD: udf_write.c,v 1.8 2013/08/25 14:13:47 reinoud Exp $ */
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/*
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* Copyright (c) 2006, 2008, 2013 Reinoud Zandijk
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#if HAVE_NBTOOL_CONFIG_H
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#include "nbtool_config.h"
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#endif
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#include <sys/cdefs.h>
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__RCSID("$NetBSD: udf_write.c,v 1.8 2013/08/25 14:13:47 reinoud Exp $");
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <time.h>
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#include <assert.h>
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#include <err.h>
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#include <sys/types.h>
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#include <sys/param.h>
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#if !HAVE_NBTOOL_CONFIG_H
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#define _EXPOSE_MMC
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#include <sys/cdio.h>
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#else
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#include "udf/cdio_mmc_structs.h"
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#endif
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#include "udf_create.h"
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#include "udf_write.h"
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#include "newfs_udf.h"
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union dscrptr *terminator_dscr;
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static int
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udf_write_phys(void *blob, uint32_t location, uint32_t sects)
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{
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uint32_t phys, cnt;
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uint8_t *bpos;
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int error;
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for (cnt = 0; cnt < sects; cnt++) {
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bpos = (uint8_t *) blob;
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bpos += context.sector_size * cnt;
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phys = location + cnt;
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error = udf_write_sector(bpos, phys);
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if (error)
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return error;
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}
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return 0;
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}
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static int
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udf_write_dscr_phys(union dscrptr *dscr, uint32_t location,
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uint32_t sects)
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{
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dscr->tag.tag_loc = udf_rw32(location);
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(void) udf_validate_tag_and_crc_sums(dscr);
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return udf_write_phys(dscr, location, sects);
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}
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int
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udf_write_dscr_virt(union dscrptr *dscr, uint32_t location, uint32_t vpart,
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uint32_t sects)
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{
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struct file_entry *fe;
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struct extfile_entry *efe;
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struct extattrhdr_desc *extattrhdr;
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uint32_t phys;
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extattrhdr = NULL;
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if (udf_rw16(dscr->tag.id) == TAGID_FENTRY) {
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fe = (struct file_entry *) dscr;
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if (udf_rw32(fe->l_ea) > 0)
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extattrhdr = (struct extattrhdr_desc *) fe->data;
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}
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if (udf_rw16(dscr->tag.id) == TAGID_EXTFENTRY) {
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efe = (struct extfile_entry *) dscr;
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if (udf_rw32(efe->l_ea) > 0)
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extattrhdr = (struct extattrhdr_desc *) efe->data;
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}
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if (extattrhdr) {
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extattrhdr->tag.tag_loc = udf_rw32(location);
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udf_validate_tag_and_crc_sums((union dscrptr *) extattrhdr);
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}
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dscr->tag.tag_loc = udf_rw32(location);
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udf_validate_tag_and_crc_sums(dscr);
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/* determine physical location */
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phys = context.vtop_offset[vpart];
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if (context.vtop_tp[vpart] == UDF_VTOP_TYPE_VIRT) {
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udf_vat_update(location, context.data_alloc_pos);
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phys += context.data_alloc_pos++;
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} else {
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phys += location;
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}
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return udf_write_phys(dscr, phys, sects);
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}
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void
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udf_metadata_alloc(int nblk, struct long_ad *pos)
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{
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memset(pos, 0, sizeof(*pos));
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pos->len = udf_rw32(nblk * context.sector_size);
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pos->loc.lb_num = udf_rw32(context.metadata_alloc_pos);
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pos->loc.part_num = udf_rw16(context.metadata_part);
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udf_mark_allocated(context.metadata_alloc_pos, context.metadata_part,
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nblk);
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context.metadata_alloc_pos += nblk;
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if (context.metadata_part == context.data_part)
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context.data_alloc_pos = context.metadata_alloc_pos;
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}
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void
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udf_data_alloc(int nblk, struct long_ad *pos)
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{
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memset(pos, 0, sizeof(*pos));
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pos->len = udf_rw32(nblk * context.sector_size);
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pos->loc.lb_num = udf_rw32(context.data_alloc_pos);
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pos->loc.part_num = udf_rw16(context.data_part);
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udf_mark_allocated(context.data_alloc_pos, context.data_part, nblk);
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context.data_alloc_pos += nblk;
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if (context.metadata_part == context.data_part)
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context.metadata_alloc_pos = context.data_alloc_pos;
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}
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/* --------------------------------------------------------------------- */
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/*
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* udf_derive_format derives the format_flags from the disc's mmc_discinfo.
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* The resulting flags uniquely define a disc format. Note there are at least
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* 7 distinct format types defined in UDF.
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*/
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#define UDF_VERSION(a) \
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(((a) == 0x100) || ((a) == 0x102) || ((a) == 0x150) || ((a) == 0x200) || \
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((a) == 0x201) || ((a) == 0x250) || ((a) == 0x260))
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int
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udf_derive_format(int req_enable, int req_disable, int force)
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{
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/* disc writability, formatted, appendable */
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if ((mmc_discinfo.mmc_cur & MMC_CAP_RECORDABLE) == 0) {
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(void)printf("Can't newfs readonly device\n");
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return EROFS;
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}
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if (mmc_discinfo.mmc_cur & MMC_CAP_SEQUENTIAL) {
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/* sequentials need sessions appended */
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if (mmc_discinfo.disc_state == MMC_STATE_CLOSED) {
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(void)printf("Can't append session to a closed disc\n");
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return EROFS;
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}
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if ((mmc_discinfo.disc_state != MMC_STATE_EMPTY) && !force) {
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(void)printf("Disc not empty! Use -F to force "
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"initialisation\n");
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return EROFS;
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}
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} else {
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/* check if disc (being) formatted or has been started on */
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if (mmc_discinfo.disc_state == MMC_STATE_EMPTY) {
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(void)printf("Disc is not formatted\n");
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return EROFS;
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}
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}
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/* determine UDF format */
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format_flags = 0;
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if (mmc_discinfo.mmc_cur & MMC_CAP_REWRITABLE) {
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/* all rewritable media */
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format_flags |= FORMAT_REWRITABLE;
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if (context.min_udf >= 0x0250) {
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/* standard dictates meta as default */
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format_flags |= FORMAT_META;
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}
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if ((mmc_discinfo.mmc_cur & MMC_CAP_HW_DEFECTFREE) == 0) {
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/* sparables for defect management */
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if (context.min_udf >= 0x150)
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format_flags |= FORMAT_SPARABLE;
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}
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} else {
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/* all once recordable media */
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format_flags |= FORMAT_WRITEONCE;
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if (mmc_discinfo.mmc_cur & MMC_CAP_SEQUENTIAL) {
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format_flags |= FORMAT_SEQUENTIAL;
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if (mmc_discinfo.mmc_cur & MMC_CAP_PSEUDOOVERWRITE) {
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/* logical overwritable */
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format_flags |= FORMAT_LOW;
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} else {
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/* have to use VAT for overwriting */
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format_flags |= FORMAT_VAT;
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}
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} else {
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/* rare WORM devices, but BluRay has one, strat4096 */
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format_flags |= FORMAT_WORM;
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}
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}
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/* enable/disable requests */
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if (req_disable & FORMAT_META) {
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format_flags &= ~(FORMAT_META | FORMAT_LOW);
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req_disable &= ~FORMAT_META;
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}
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if ((format_flags & FORMAT_VAT) & UDF_512_TRACK)
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format_flags |= FORMAT_TRACK512;
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if (req_enable & FORMAT_READONLY) {
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format_flags |= FORMAT_READONLY;
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}
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/* determine partition/media access type */
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media_accesstype = UDF_ACCESSTYPE_NOT_SPECIFIED;
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if (mmc_discinfo.mmc_cur & MMC_CAP_REWRITABLE) {
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media_accesstype = UDF_ACCESSTYPE_OVERWRITABLE;
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if (mmc_discinfo.mmc_cur & MMC_CAP_ERASABLE)
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media_accesstype = UDF_ACCESSTYPE_REWRITEABLE;
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} else {
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/* all once recordable media */
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media_accesstype = UDF_ACCESSTYPE_WRITE_ONCE;
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}
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if (mmc_discinfo.mmc_cur & MMC_CAP_PSEUDOOVERWRITE)
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media_accesstype = UDF_ACCESSTYPE_PSEUDO_OVERWITE;
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/* patch up media accesstype */
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if (req_enable & FORMAT_READONLY) {
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/* better now */
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media_accesstype = UDF_ACCESSTYPE_READ_ONLY;
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}
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/* adjust minimum version limits */
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if (format_flags & FORMAT_VAT)
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context.min_udf = MAX(context.min_udf, 0x0150);
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if (format_flags & FORMAT_SPARABLE)
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context.min_udf = MAX(context.min_udf, 0x0150);
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if (format_flags & FORMAT_META)
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context.min_udf = MAX(context.min_udf, 0x0250);
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if (format_flags & FORMAT_LOW)
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context.min_udf = MAX(context.min_udf, 0x0260);
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/* adjust maximum version limits not to tease or break things */
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if (!(format_flags & (FORMAT_META | FORMAT_LOW)) &&
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(context.max_udf > 0x200))
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context.max_udf = 0x201;
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if ((format_flags & (FORMAT_VAT | FORMAT_SPARABLE)) == 0)
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if (context.max_udf <= 0x150)
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context.min_udf = 0x102;
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/* limit Ecma 167 descriptor if possible/needed */
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context.dscrver = 3;
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if ((context.min_udf < 0x200) || (context.max_udf < 0x200)) {
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context.dscrver = 2;
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context.max_udf = 0x150; /* last version < 0x200 */
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}
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/* is it possible ? */
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if (context.min_udf > context.max_udf) {
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(void)printf("Initialisation prohibited by specified maximum "
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"UDF version 0x%04x. Minimum version required 0x%04x\n",
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context.max_udf, context.min_udf);
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return EPERM;
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}
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if (!UDF_VERSION(context.min_udf) || !UDF_VERSION(context.max_udf)) {
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printf("Choose UDF version numbers from "
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"0x102, 0x150, 0x200, 0x201, 0x250 and 0x260\n");
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printf("Default version is 0x201\n");
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return EPERM;
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}
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return 0;
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}
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#undef UDF_VERSION
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/* --------------------------------------------------------------------- */
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int
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udf_proces_names(void)
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{
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uint32_t primary_nr;
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uint64_t volset_nr;
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if (context.logvol_name == NULL)
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context.logvol_name = strdup("anonymous");
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if (context.primary_name == NULL) {
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if (mmc_discinfo.disc_flags & MMC_DFLAGS_DISCIDVALID) {
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primary_nr = mmc_discinfo.disc_id;
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} else {
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primary_nr = (uint32_t) random();
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}
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context.primary_name = calloc(32, 1);
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sprintf(context.primary_name, "%08"PRIx32, primary_nr);
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}
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if (context.volset_name == NULL) {
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if (mmc_discinfo.disc_flags & MMC_DFLAGS_BARCODEVALID) {
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volset_nr = mmc_discinfo.disc_barcode;
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} else {
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volset_nr = (uint32_t) random();
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volset_nr |= ((uint64_t) random()) << 32;
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}
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context.volset_name = calloc(128,1);
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sprintf(context.volset_name, "%016"PRIx64, volset_nr);
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}
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if (context.fileset_name == NULL)
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context.fileset_name = strdup("anonymous");
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/* check passed/created identifiers */
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if (strlen(context.logvol_name) > 128) {
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(void)printf("Logical volume name too long\n");
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return EINVAL;
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}
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if (strlen(context.primary_name) > 32) {
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(void)printf("Primary volume name too long\n");
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return EINVAL;
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}
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if (strlen(context.volset_name) > 128) {
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(void)printf("Volume set name too long\n");
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return EINVAL;
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}
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if (strlen(context.fileset_name) > 32) {
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(void)printf("Fileset name too long\n");
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return EINVAL;
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}
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/* signal all OK */
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return 0;
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}
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/* --------------------------------------------------------------------- */
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static int
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udf_write_iso9660_vrs(void)
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{
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struct vrs_desc *iso9660_vrs_desc;
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uint32_t pos;
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int error, cnt, dpos;
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/* create ISO/Ecma-167 identification descriptors */
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if ((iso9660_vrs_desc = calloc(1, context.sector_size)) == NULL)
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return ENOMEM;
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/*
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* All UDF formats should have their ISO/Ecma-167 descriptors written
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* except when not possible due to track reservation in the case of
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* VAT
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*/
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if ((format_flags & FORMAT_TRACK512) == 0) {
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dpos = (2048 + context.sector_size - 1) / context.sector_size;
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/* wipe at least 6 times 2048 byte `sectors' */
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for (cnt = 0; cnt < 6 *dpos; cnt++) {
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pos = layout.iso9660_vrs + cnt;
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if ((error = udf_write_sector(iso9660_vrs_desc, pos))) {
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free(iso9660_vrs_desc);
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return error;
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}
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}
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/* common VRS fields in all written out ISO descriptors */
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iso9660_vrs_desc->struct_type = 0;
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iso9660_vrs_desc->version = 1;
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pos = layout.iso9660_vrs;
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/* BEA01, NSR[23], TEA01 */
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memcpy(iso9660_vrs_desc->identifier, "BEA01", 5);
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if ((error = udf_write_sector(iso9660_vrs_desc, pos))) {
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free(iso9660_vrs_desc);
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return error;
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}
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pos += dpos;
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|
||
|
if (context.dscrver == 2)
|
||
|
memcpy(iso9660_vrs_desc->identifier, "NSR02", 5);
|
||
|
else
|
||
|
memcpy(iso9660_vrs_desc->identifier, "NSR03", 5);
|
||
|
;
|
||
|
if ((error = udf_write_sector(iso9660_vrs_desc, pos))) {
|
||
|
free(iso9660_vrs_desc);
|
||
|
return error;
|
||
|
}
|
||
|
pos += dpos;
|
||
|
|
||
|
memcpy(iso9660_vrs_desc->identifier, "TEA01", 5);
|
||
|
if ((error = udf_write_sector(iso9660_vrs_desc, pos))) {
|
||
|
free(iso9660_vrs_desc);
|
||
|
return error;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
free(iso9660_vrs_desc);
|
||
|
/* return success */
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
|
||
|
/* --------------------------------------------------------------------- */
|
||
|
|
||
|
/*
|
||
|
* Main function that creates and writes out disc contents based on the
|
||
|
* format_flags's that uniquely define the type of disc to create.
|
||
|
*/
|
||
|
|
||
|
int
|
||
|
udf_do_newfs_prefix(void)
|
||
|
{
|
||
|
union dscrptr *zero_dscr;
|
||
|
union dscrptr *dscr;
|
||
|
struct mmc_trackinfo ti;
|
||
|
uint32_t sparable_blocks;
|
||
|
uint32_t sector_size, blockingnr;
|
||
|
uint32_t cnt, loc, len;
|
||
|
int sectcopy;
|
||
|
int error, integrity_type;
|
||
|
int data_part, metadata_part;
|
||
|
|
||
|
/* init */
|
||
|
sector_size = mmc_discinfo.sector_size;
|
||
|
|
||
|
/* determine span/size */
|
||
|
ti.tracknr = mmc_discinfo.first_track_last_session;
|
||
|
error = udf_update_trackinfo(&mmc_discinfo, &ti);
|
||
|
if (error)
|
||
|
return error;
|
||
|
|
||
|
if (mmc_discinfo.sector_size < context.sector_size) {
|
||
|
fprintf(stderr, "Impossible to format: sectorsize too small\n");
|
||
|
return EIO;
|
||
|
}
|
||
|
context.sector_size = sector_size;
|
||
|
|
||
|
/* determine blockingnr */
|
||
|
blockingnr = ti.packet_size;
|
||
|
if (blockingnr <= 1) {
|
||
|
/* paranoia on blockingnr */
|
||
|
switch (mmc_discinfo.mmc_profile) {
|
||
|
case 0x08 : /* CDROM */
|
||
|
case 0x09 : /* CD-R */
|
||
|
case 0x0a : /* CD-RW */
|
||
|
blockingnr = 32; /* UDF requirement */
|
||
|
break;
|
||
|
case 0x10 : /* DVDROM */
|
||
|
case 0x11 : /* DVD-R (DL) */
|
||
|
case 0x12 : /* DVD-RAM */
|
||
|
case 0x1b : /* DVD+R */
|
||
|
case 0x2b : /* DVD+R Dual layer */
|
||
|
case 0x13 : /* DVD-RW restricted overwrite */
|
||
|
case 0x14 : /* DVD-RW sequential */
|
||
|
blockingnr = 16; /* SCSI definition */
|
||
|
break;
|
||
|
case 0x40 : /* BDROM */
|
||
|
case 0x41 : /* BD-R Sequential recording (SRM) */
|
||
|
case 0x42 : /* BD-R Random recording (RRM) */
|
||
|
case 0x43 : /* BD-RE */
|
||
|
case 0x51 : /* HD DVD-R */
|
||
|
case 0x52 : /* HD DVD-RW */
|
||
|
blockingnr = 32; /* SCSI definition */
|
||
|
break;
|
||
|
default:
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
if (blockingnr <= 0) {
|
||
|
printf("Can't fixup blockingnumber for device "
|
||
|
"type %d\n", mmc_discinfo.mmc_profile);
|
||
|
|
||
|
printf("Device is not returning valid blocking"
|
||
|
" number and media type is unknown.\n");
|
||
|
|
||
|
return EINVAL;
|
||
|
}
|
||
|
wrtrack_skew = ti.track_start % blockingnr;
|
||
|
|
||
|
if (mmc_discinfo.mmc_class == MMC_CLASS_CD) {
|
||
|
/* not too much for CD-RW, still 20MiB */
|
||
|
sparable_blocks = 32;
|
||
|
} else {
|
||
|
/* take a value for DVD*RW mainly, BD is `defect free' */
|
||
|
sparable_blocks = 512;
|
||
|
}
|
||
|
|
||
|
/* get layout */
|
||
|
error = udf_calculate_disc_layout(format_flags, context.min_udf,
|
||
|
wrtrack_skew,
|
||
|
ti.track_start, mmc_discinfo.last_possible_lba,
|
||
|
context.sector_size, blockingnr, sparable_blocks,
|
||
|
meta_fract);
|
||
|
|
||
|
/* cache partition for we need it often */
|
||
|
data_part = context.data_part;
|
||
|
metadata_part = context.metadata_part;
|
||
|
|
||
|
/* Create sparing table descriptor if applicable */
|
||
|
if (format_flags & FORMAT_SPARABLE) {
|
||
|
if ((error = udf_create_sparing_tabled()))
|
||
|
return error;
|
||
|
|
||
|
if (check_surface) {
|
||
|
if ((error = udf_surface_check()))
|
||
|
return error;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/* Create a generic terminator descriptor (later reused) */
|
||
|
terminator_dscr = calloc(1, sector_size);
|
||
|
if (terminator_dscr == NULL)
|
||
|
return ENOMEM;
|
||
|
udf_create_terminator(terminator_dscr, 0);
|
||
|
|
||
|
/*
|
||
|
* Start with wipeout of VRS1 upto start of partition. This allows
|
||
|
* formatting for sequentials with the track reservation and it
|
||
|
* cleans old rubbish on rewritables. For sequentuals without the
|
||
|
* track reservation all is wiped from track start.
|
||
|
*/
|
||
|
if ((zero_dscr = calloc(1, context.sector_size)) == NULL)
|
||
|
return ENOMEM;
|
||
|
|
||
|
loc = (format_flags & FORMAT_TRACK512) ? layout.vds1 : ti.track_start;
|
||
|
for (; loc < layout.part_start_lba; loc++) {
|
||
|
if ((error = udf_write_sector(zero_dscr, loc))) {
|
||
|
free(zero_dscr);
|
||
|
return error;
|
||
|
}
|
||
|
}
|
||
|
free(zero_dscr);
|
||
|
|
||
|
/* Create anchors */
|
||
|
for (cnt = 0; cnt < 3; cnt++) {
|
||
|
if ((error = udf_create_anchor(cnt))) {
|
||
|
return error;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* Create the two Volume Descriptor Sets (VDS) each containing the
|
||
|
* following descriptors : primary volume, partition space,
|
||
|
* unallocated space, logical volume, implementation use and the
|
||
|
* terminator
|
||
|
*/
|
||
|
|
||
|
/* start of volume recognision sequence building */
|
||
|
context.vds_seq = 0;
|
||
|
|
||
|
/* Create primary volume descriptor */
|
||
|
if ((error = udf_create_primaryd()))
|
||
|
return error;
|
||
|
|
||
|
/* Create partition descriptor */
|
||
|
if ((error = udf_create_partitiond(context.data_part, media_accesstype)))
|
||
|
return error;
|
||
|
|
||
|
/* Create unallocated space descriptor */
|
||
|
if ((error = udf_create_unalloc_spaced()))
|
||
|
return error;
|
||
|
|
||
|
/* Create logical volume descriptor */
|
||
|
if ((error = udf_create_logical_dscr(format_flags)))
|
||
|
return error;
|
||
|
|
||
|
/* Create implementation use descriptor */
|
||
|
/* TODO input of fields 1,2,3 and passing them */
|
||
|
if ((error = udf_create_impvold(NULL, NULL, NULL)))
|
||
|
return error;
|
||
|
|
||
|
/* write out what we've created so far */
|
||
|
|
||
|
/* writeout iso9660 vrs */
|
||
|
if ((error = udf_write_iso9660_vrs()))
|
||
|
return error;
|
||
|
|
||
|
/* Writeout anchors */
|
||
|
for (cnt = 0; cnt < 3; cnt++) {
|
||
|
dscr = (union dscrptr *) context.anchors[cnt];
|
||
|
loc = layout.anchors[cnt];
|
||
|
if ((error = udf_write_dscr_phys(dscr, loc, 1)))
|
||
|
return error;
|
||
|
|
||
|
/* sequential media has only one anchor */
|
||
|
if (format_flags & FORMAT_SEQUENTIAL)
|
||
|
break;
|
||
|
}
|
||
|
|
||
|
/* write out main and secondary VRS */
|
||
|
for (sectcopy = 1; sectcopy <= 2; sectcopy++) {
|
||
|
loc = (sectcopy == 1) ? layout.vds1 : layout.vds2;
|
||
|
|
||
|
/* primary volume descriptor */
|
||
|
dscr = (union dscrptr *) context.primary_vol;
|
||
|
error = udf_write_dscr_phys(dscr, loc, 1);
|
||
|
if (error)
|
||
|
return error;
|
||
|
loc++;
|
||
|
|
||
|
/* partition descriptor(s) */
|
||
|
for (cnt = 0; cnt < UDF_PARTITIONS; cnt++) {
|
||
|
dscr = (union dscrptr *) context.partitions[cnt];
|
||
|
if (dscr) {
|
||
|
error = udf_write_dscr_phys(dscr, loc, 1);
|
||
|
if (error)
|
||
|
return error;
|
||
|
loc++;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/* unallocated space descriptor */
|
||
|
dscr = (union dscrptr *) context.unallocated;
|
||
|
error = udf_write_dscr_phys(dscr, loc, 1);
|
||
|
if (error)
|
||
|
return error;
|
||
|
loc++;
|
||
|
|
||
|
/* logical volume descriptor */
|
||
|
dscr = (union dscrptr *) context.logical_vol;
|
||
|
error = udf_write_dscr_phys(dscr, loc, 1);
|
||
|
if (error)
|
||
|
return error;
|
||
|
loc++;
|
||
|
|
||
|
/* implementation use descriptor */
|
||
|
dscr = (union dscrptr *) context.implementation;
|
||
|
error = udf_write_dscr_phys(dscr, loc, 1);
|
||
|
if (error)
|
||
|
return error;
|
||
|
loc++;
|
||
|
|
||
|
/* terminator descriptor */
|
||
|
error = udf_write_dscr_phys(terminator_dscr, loc, 1);
|
||
|
if (error)
|
||
|
return error;
|
||
|
loc++;
|
||
|
}
|
||
|
|
||
|
/* writeout the two sparable table descriptors (if needed) */
|
||
|
if (format_flags & FORMAT_SPARABLE) {
|
||
|
for (sectcopy = 1; sectcopy <= 2; sectcopy++) {
|
||
|
loc = (sectcopy == 1) ? layout.spt_1 : layout.spt_2;
|
||
|
dscr = (union dscrptr *) context.sparing_table;
|
||
|
len = layout.sparing_table_dscr_lbas;
|
||
|
|
||
|
/* writeout */
|
||
|
error = udf_write_dscr_phys(dscr, loc, len);
|
||
|
if (error)
|
||
|
return error;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* Create unallocated space bitmap descriptor. Sequential recorded
|
||
|
* media report their own free/used space; no free/used space tables
|
||
|
* should be recorded for these.
|
||
|
*/
|
||
|
if ((format_flags & (FORMAT_SEQUENTIAL | FORMAT_READONLY)) == 0) {
|
||
|
error = udf_create_space_bitmap(
|
||
|
layout.alloc_bitmap_dscr_size,
|
||
|
layout.part_size_lba,
|
||
|
&context.part_unalloc_bits[data_part]);
|
||
|
if (error)
|
||
|
return error;
|
||
|
/* TODO: freed space bitmap if applicable */
|
||
|
|
||
|
/* mark space allocated for the unallocated space bitmap */
|
||
|
udf_mark_allocated(layout.unalloc_space, data_part,
|
||
|
layout.alloc_bitmap_dscr_size);
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* Create metadata partition file entries and allocate and init their
|
||
|
* space and free space maps.
|
||
|
*/
|
||
|
if (format_flags & FORMAT_META) {
|
||
|
error = udf_create_space_bitmap(
|
||
|
layout.meta_bitmap_dscr_size,
|
||
|
layout.meta_part_size_lba,
|
||
|
&context.part_unalloc_bits[metadata_part]);
|
||
|
if (error)
|
||
|
return error;
|
||
|
|
||
|
error = udf_create_meta_files();
|
||
|
if (error)
|
||
|
return error;
|
||
|
|
||
|
/* mark space allocated for meta partition and its bitmap */
|
||
|
udf_mark_allocated(layout.meta_file, data_part, 1);
|
||
|
udf_mark_allocated(layout.meta_mirror, data_part, 1);
|
||
|
udf_mark_allocated(layout.meta_bitmap, data_part, 1);
|
||
|
udf_mark_allocated(layout.meta_part_start_lba, data_part,
|
||
|
layout.meta_part_size_lba);
|
||
|
|
||
|
/* mark space allocated for the unallocated space bitmap */
|
||
|
udf_mark_allocated(layout.meta_bitmap_space, data_part,
|
||
|
layout.meta_bitmap_dscr_size);
|
||
|
}
|
||
|
|
||
|
/* create logical volume integrity descriptor */
|
||
|
context.num_files = 0;
|
||
|
context.num_directories = 0;
|
||
|
integrity_type = UDF_INTEGRITY_OPEN;
|
||
|
if ((error = udf_create_lvintd(integrity_type)))
|
||
|
return error;
|
||
|
|
||
|
/* writeout initial open integrity sequence + terminator */
|
||
|
loc = layout.lvis;
|
||
|
dscr = (union dscrptr *) context.logvol_integrity;
|
||
|
error = udf_write_dscr_phys(dscr, loc, 1);
|
||
|
if (error)
|
||
|
return error;
|
||
|
loc++;
|
||
|
error = udf_write_dscr_phys(terminator_dscr, loc, 1);
|
||
|
if (error)
|
||
|
return error;
|
||
|
|
||
|
/* create VAT if needed */
|
||
|
if (format_flags & FORMAT_VAT) {
|
||
|
context.vat_allocated = context.sector_size;
|
||
|
context.vat_contents = malloc(context.vat_allocated);
|
||
|
assert(context.vat_contents);
|
||
|
|
||
|
udf_prepend_VAT_file();
|
||
|
}
|
||
|
|
||
|
/* create FSD and writeout */
|
||
|
if ((error = udf_create_fsd()))
|
||
|
return error;
|
||
|
udf_mark_allocated(layout.fsd, metadata_part, 1);
|
||
|
|
||
|
dscr = (union dscrptr *) context.fileset_desc;
|
||
|
error = udf_write_dscr_virt(dscr, layout.fsd, metadata_part, 1);
|
||
|
|
||
|
return error;
|
||
|
}
|
||
|
|
||
|
|
||
|
/* specific routine for newfs to create empty rootdirectory */
|
||
|
int
|
||
|
udf_do_rootdir(void) {
|
||
|
union dscrptr *root_dscr;
|
||
|
int error;
|
||
|
|
||
|
/* create root directory and write out */
|
||
|
assert(context.unique_id == 0x10);
|
||
|
context.unique_id = 0;
|
||
|
if ((error = udf_create_new_rootdir(&root_dscr)))
|
||
|
return error;
|
||
|
udf_mark_allocated(layout.rootdir, context.metadata_part, 1);
|
||
|
|
||
|
error = udf_write_dscr_virt(root_dscr,
|
||
|
layout.rootdir, context.metadata_part, 1);
|
||
|
|
||
|
free(root_dscr);
|
||
|
|
||
|
return error;
|
||
|
}
|
||
|
|
||
|
|
||
|
int
|
||
|
udf_do_newfs_postfix(void)
|
||
|
{
|
||
|
union dscrptr *vat_dscr;
|
||
|
union dscrptr *dscr;
|
||
|
struct long_ad vatdata_pos;
|
||
|
uint32_t loc, len, phys, sects;
|
||
|
int data_part, metadata_part;
|
||
|
int error;
|
||
|
|
||
|
/* cache partition for we need it often */
|
||
|
data_part = context.data_part;
|
||
|
metadata_part = context.metadata_part;
|
||
|
|
||
|
if ((format_flags & FORMAT_SEQUENTIAL) == 0) {
|
||
|
/* update lvint and mark it closed */
|
||
|
udf_update_lvintd(UDF_INTEGRITY_CLOSED);
|
||
|
|
||
|
/* overwrite initial terminator */
|
||
|
loc = layout.lvis+1;
|
||
|
dscr = (union dscrptr *) context.logvol_integrity;
|
||
|
error = udf_write_dscr_phys(dscr, loc, 1);
|
||
|
if (error)
|
||
|
return error;
|
||
|
loc++;
|
||
|
|
||
|
/* mark end of integrity desciptor sequence again */
|
||
|
error = udf_write_dscr_phys(terminator_dscr, loc, 1);
|
||
|
if (error)
|
||
|
return error;
|
||
|
}
|
||
|
|
||
|
/* write out unallocated space bitmap on non sequential media */
|
||
|
if ((format_flags & (FORMAT_SEQUENTIAL | FORMAT_READONLY)) == 0) {
|
||
|
/* writeout unallocated space bitmap */
|
||
|
loc = layout.unalloc_space;
|
||
|
dscr = (union dscrptr *) (context.part_unalloc_bits[data_part]);
|
||
|
len = layout.alloc_bitmap_dscr_size;
|
||
|
error = udf_write_dscr_virt(dscr, loc, data_part, len);
|
||
|
if (error)
|
||
|
return error;
|
||
|
}
|
||
|
|
||
|
if (format_flags & FORMAT_META) {
|
||
|
loc = layout.meta_file;
|
||
|
dscr = (union dscrptr *) context.meta_file;
|
||
|
error = udf_write_dscr_virt(dscr, loc, data_part, 1);
|
||
|
if (error)
|
||
|
return error;
|
||
|
|
||
|
loc = layout.meta_mirror;
|
||
|
dscr = (union dscrptr *) context.meta_mirror;
|
||
|
error = udf_write_dscr_virt(dscr, loc, data_part, 1);
|
||
|
if (error)
|
||
|
return error;
|
||
|
|
||
|
loc = layout.meta_bitmap;
|
||
|
dscr = (union dscrptr *) context.meta_bitmap;
|
||
|
error = udf_write_dscr_virt(dscr, loc, data_part, 1);
|
||
|
if (error)
|
||
|
return error;
|
||
|
|
||
|
/* writeout unallocated space bitmap */
|
||
|
loc = layout.meta_bitmap_space;
|
||
|
dscr = (union dscrptr *)
|
||
|
(context.part_unalloc_bits[metadata_part]);
|
||
|
len = layout.meta_bitmap_dscr_size;
|
||
|
error = udf_write_dscr_virt(dscr, loc, data_part, len);
|
||
|
if (error)
|
||
|
return error;
|
||
|
}
|
||
|
|
||
|
/* create a VAT and account for FSD+root */
|
||
|
vat_dscr = NULL;
|
||
|
if (format_flags & FORMAT_VAT) {
|
||
|
/* update lvint to reflect the newest values (no writeout) */
|
||
|
udf_update_lvintd(UDF_INTEGRITY_CLOSED);
|
||
|
|
||
|
error = udf_append_VAT_file();
|
||
|
if (error)
|
||
|
return error;
|
||
|
|
||
|
/* write out VAT data */
|
||
|
sects = UDF_ROUNDUP(context.vat_size, context.sector_size) /
|
||
|
context.sector_size;
|
||
|
layout.vat = context.data_alloc_pos;
|
||
|
udf_data_alloc(sects, &vatdata_pos);
|
||
|
|
||
|
loc = udf_rw32(vatdata_pos.loc.lb_num);
|
||
|
phys = context.vtop_offset[context.data_part] + loc;
|
||
|
|
||
|
error = udf_write_phys(context.vat_contents, phys, sects);
|
||
|
if (error)
|
||
|
return error;
|
||
|
loc += sects;
|
||
|
|
||
|
/* create new VAT descriptor */
|
||
|
error = udf_create_VAT(&vat_dscr);
|
||
|
if (error)
|
||
|
return error;
|
||
|
context.data_alloc_pos++;
|
||
|
loc++;
|
||
|
|
||
|
error = udf_write_dscr_virt(vat_dscr, loc, metadata_part, 1);
|
||
|
free(vat_dscr);
|
||
|
if (error)
|
||
|
return error;
|
||
|
}
|
||
|
|
||
|
/* done */
|
||
|
return 0;
|
||
|
}
|