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Code Issues Releases Wiki Activity

Fixed updating the checksum in the CA table after mapping EMM PIDs for MTD

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This commit is contained in:
Klaus Schmidinger 2019-05-05 18:35:15 +02:00
parent 0f10c8824c
commit 16f18cbce8
3 changed files with 20 additions and 7 deletions
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1
CONTRIBUTORS
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@ -3580,6 +3580,7 @@ Helmut Binder <cco@aon.at>
for reporting a bug in processing SI::T2DeliverySystemDescriptor when typecasting it
over an SI::ExtensionDescriptor
for fixing mapping SIDs in MTD
for fixing updating the checksum in the CA table after mapping EMM PIDs for MTD
Ulrich Eckhardt <uli@uli-eckhardt.de>
for reporting a problem with shutdown after user inactivity in case a plugin is

2
HISTORY
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@ -9395,3 +9395,5 @@ Video Disk Recorder Revision History
list of (deleted) recordings and thus won't display too much empty disk space.
- Fixed the install target in case of multiple jobs (thanks to Chris Mayo).
- Fixed mapping SIDs in MTD (thanks to Helmut Binder).
- Fixed updating the checksum in the CA table after mapping EMM PIDs for MTD (thanks to
Helmut Binder).

22
ci.c
View File

@ -4,7 +4,7 @@
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: ci.c 4.23 2019/03/19 14:58:06 kls Exp $
* $Id: ci.c 4.24 2019/05/05 14:15:56 kls Exp $
*/
#include "ci.h"
@ -225,7 +225,7 @@ void cCaPidReceiver::Receive(const uchar *Data, int Length)
}
else {
esyslog("ERROR: buffer overflow in cCaPidReceiver::Receive()");
bufp = 0;
bufp = NULL;
length = 0;
}
}
@ -250,13 +250,23 @@ void cCaPidReceiver::Receive(const uchar *Data, int Length)
i += p[i + 1] + 2 - 1; // -1 to compensate for the loop increment
}
}
p = NULL;
bufp = 0;
length = 0;
if (MtdCamSlot) {
if (!bufp && length) {
// update crc32 - but only single packet CAT is handled for now:
uint32_t crc = SI::CRC32::crc32((const char *)p - 8, length + 8 - 4, 0xFFFFFFFF); // <TableIdCAT....>[crc32]
uchar *c = const_cast<uchar *>(p + length - 4);
*c++ = crc >> 24;
*c++ = crc >> 16;
*c++ = crc >> 8;
*c++ = crc;
}
memcpy(mtdCatBuffer, Data, TS_SIZE);
if (MtdCamSlot)
MtdCamSlot->PutCat(mtdCatBuffer, TS_SIZE);
}
p = NULL;
bufp = NULL;
length = 0;
}
}
}