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Force allocation extent descriptor CRC length to 8 for UDF versions prior 

to version 2.01.
This commit is contained in:
reinoud 2008-07-09 18:10:57 +00:00
parent 53485c0add
commit e367a2e837
1 changed files with 10 additions and 5 deletions
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15
sys/fs/udf/udf_readwrite.c
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@ -1,4 +1,4 @@
/* $NetBSD: udf_readwrite.c,v 1.4 2008/07/03 18:01:08 reinoud Exp $ */
/* $NetBSD: udf_readwrite.c,v 1.5 2008/07/09 18:10:57 reinoud Exp $ */
/*
* Copyright (c) 2007, 2008 Reinoud Zandijk
@ -28,7 +28,7 @@
#include <sys/cdefs.h>
#ifndef lint
__KERNEL_RCSID(0, "$NetBSD: udf_readwrite.c,v 1.4 2008/07/03 18:01:08 reinoud Exp $");
__KERNEL_RCSID(0, "$NetBSD: udf_readwrite.c,v 1.5 2008/07/09 18:10:57 reinoud Exp $");
#endif /* not lint */
@ -187,6 +187,7 @@ udf_fixup_node_internals(struct udf_mount *ump, uint8_t *blob, int udf_c_type)
struct desc_tag *tag;
struct file_entry *fe;
struct extfile_entry *efe;
struct alloc_ext_entry *ext;
uint32_t lb_size, lb_num;
uint32_t rfid_pos, max_rfid_pos;
int icbflags, addr_type, has_fids, l_ea;
@ -198,6 +199,7 @@ udf_fixup_node_internals(struct udf_mount *ump, uint8_t *blob, int udf_c_type)
/* NOTE this could also be done in write_internal */
/* start of a descriptor */
l_ea = 0;
has_fids = 0;
max_rfid_pos = rfid_pos = lb_num = 0; /* shut up gcc! */
@ -224,10 +226,13 @@ udf_fixup_node_internals(struct udf_mount *ump, uint8_t *blob, int udf_c_type)
lb_num = udf_rw32(efe->tag.tag_loc);
break;
case TAGID_INDIRECTENTRY :
case TAGID_ALLOCEXTENT :
case TAGID_EXTATTR_HDR :
l_ea = 0;
has_fids = 0;
break;
case TAGID_ALLOCEXTENT :
/* force crclen to 8 for UDF version < 2.01 */
ext = (struct alloc_ext_entry *) tag;
if (udf_rw16(ump->logvol_info->min_udf_readver) <= 0x200)
ext->tag.desc_crc_len = udf_rw16(8);
break;
default:
panic("%s: passed bad tag\n", __func__);