This would solve the issue I noted months ago:
http://sourceforge.net/p/cdrtools/mailman/message/34410200/
--
Jonatã Bolzan Loss
On Wed, Nov 25, 2015 at 4:40 PM, Ganssauge, Gottfried <
gottfried.ganssa...@haufe-lexware.com> wrote:
> Hello list,
>
> We recently had to switch the machine which produces UDF images for our
> products from Ubuntu-12 LTS to Ubuntu-14 LTS.
> Unfortunately suddenly all UDF images produced by the new machine were
> rejected by our DVD-ROM manufacturer. Their
> pre production verification step spit out the following message:
>
> PI51_U14 - Fehler:
> [e] DVD 1 Volume Descriptor Sequences are
> not equivalent
> [w] DVD 1 Inconsistency between UDF Main and
> Reserve Volume Descriptor Sequence
>
> I started to investigate and found out that the Volume Set ID is slightly
> different between the original and the copy of the primary volume
> descriptor.
> As these problems remained consistently with images written on the new
> machine we suspected a connection to mkisofs which we use to create our
> images.
> On the old machine we used 3.01a24 whereas on the new machine 3.01a28 is
> used - in both cases directly from the Ubuntu software archives.
>
> I got the sources for both versions and could verify the problem with both
> versions. Then I got 3.02a2 and there I could also verify the problem.
> The test script I used is as follows:
> #!/usr/bin/env bash
> here=$(dirname $(readlink -f $0))
> myself=$(basename $0 .sh)
> UDF=${myself}.udf
> LOG=${myself}.log
>
> MKISOFS=$here/mkisofs/OBJ/x86_64-linux-cc/mkisofs
>
> $MKISOFS -v -o $UDF -log-file $LOG -udf -follow-links -joliet
> -rational-rock -pad -volid DVD1 -appid PI51 -publisher "Rudolf Haufe Verlag
> GmbH & Co KG" -input-charset iso8859-1 -iso-level 3 $here/mkisofs
> main_vds=/tmp/$$.main
> reserve_vds=/tmp/$$.reserve
> trap "rm -f $main_vds $reserve_vds" 0 1 2 3 5 15
> dd if=$UDF bs=2048 skip=32 count=16 of=$main_vds 2>/dev/null
> dd if=$UDF bs=2048 skip=48 count=16 of=$reserve_vds 2>/dev/null
> cmp -l $main_vds $reserve_vds | egrep -v '^
> *(5|13|2053|2061|4101|4109|6149|6157|8197|8205|10245|10253) +'
>
> Don't get confused by the egrep call on the last line - it sorts out the
> locations in the descriptor tags which differ by default.
> On unmodified sources this script produces the following output:
> 3.02a02 (x86_64-unknown-linux-gnu)
> re-directing all messages to HAUFECHECK.log
> 9 10 227
> 10 151 354
> 87 70 71
> 88 102 61
> 89 66 62
>
> Further investigation showed that the difference is in the Volume Set
> Identifier field at Offset 72 in the Primary Volume Descriptor.
>
> I then went through mkisofs' sources and could locate the problematic code
> at line 1990 in mkisofs/udf.c in routine udf_main_seq_write.
> That routine is called twice - once to write the main VDS and then again
> to write the reserve VDS.
> Between calls to that routine some time passes so that the call to clock()
> returns a slightly different time when called the second time.
> To fix that problem I used the tv_usec field of "tv_begun" which is
> initialized directly after "begun" and then left stable.
>
> The complete patch looks like this:
>
> diff --git a/mkisofs/udf.c b/mkisofs/udf.c
> index 25feca6..04390e2 100644
> --- a/mkisofs/udf.c
> +++ b/mkisofs/udf.c
> @@ -98,7 +98,7 @@ static UConst char sccsid[] =
> extern int use_sparcboot;
>
> extern struct directory *root;
> -extern struct timeval tv_begun;
> +extern time_t begun;
>
> static unsigned lba_main_seq;
> static unsigned lba_main_seq_copy;
> @@ -723,7 +723,7 @@ set_primary_vol_desc(buf, lba)
> /*pvd->volume_abstract;*/
> /*pvd->volume_copyright_notice;*/
> /*pvd->application_ident;*/
> - set_timestamp_from_time_t(&pvd->recording_date_and_time,
> tv_begun.tv_sec);
> + set_timestamp_from_time_t(&pvd->recording_date_and_time, begun);
> set_impl_ident(&pvd->impl_ident);
> set_tag(&pvd->desc_tag, UDF_TAGID_PRIMARY_VOLUME_DESC, lba, 512);
> }
> @@ -831,7 +831,7 @@ set_logical_vol_integrity_desc(buf, lba)
> udf_logical_volume_integrity_desc *lvid =
> (udf_logical_volume_integrity_desc *)buf;
>
> - set_timestamp_from_time_t(&lvid->recording_date, tv_begun.tv_sec);
> + set_timestamp_from_time_t(&lvid->recording_date, begun);
> set32(&lvid->integrity_type, UDF_INTEGRITY_TYPE_CLOSE);
> /*lvid->next_integrity_extent;*/
> set64(&lvid->logical_volume_contents_use.unique_id,
> @@ -859,7 +859,7 @@ set_file_set_desc(buf, rba)
> {
> udf_file_set_desc *fsd = (udf_file_set_desc *)buf;
>
> - set_timestamp_from_time_t(&fsd->recording_date_and_time,
> tv_begun.tv_sec);
> + set_timestamp_from_time_t(&fsd->recording_date_and_time, begun);
> set16(&fsd->interchange_level, 3);
> set16(&fsd->maximum_interchange_level, 3);
> set32(&fsd->character_set_list, 1);
> @@ -1986,8 +1986,8 @@ udf_main_seq_write(out)
> * volume_set_id needs to be set to a (64-bit) "unique" number.
> * This will have to do for now.
> */
> - volume_set_id[0] = tv_begun.tv_sec;
> - volume_set_id[1] = (unsigned)tv_begun.tv_usec; /* XXX Maybe
> non-portable */
> + volume_set_id[0] = begun;
> + volume_set_id[1] = (unsigned)clock(); /* XXX Maybe non-portable
> */
>
> memset(buf, 0, sizeof (buf));
> set_primary_vol_desc(buf, last_extent_written++);
>
> That fixed the problem for us.
>
> Cheers,
>
> Gottfried Ganßauge
> Entwickler
> Content Engineering & Development
>
> ------------------------------------------------------------------
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> Ein Unternehmen der Haufe Gruppe
> Munzinger Str. 9, 79111 Freiburg
> Tel. +49 761 898-0
> E-Mail: gottfried.ganssa...@haufe-lexware.com
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Give your users amazing mobile app experiences with Intel(R) XDK.
Use one codebase in this all-in-one HTML5 development environment.
Design, debug & build mobile apps & 2D/3D high-impact games for multiple OSs.
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