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[KDCOM]

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- Compare checksum after retreiving the full packet
- simplify code

svn path=/branches/ros-amd64-bringup/; revision=43739
This commit is contained in:
Timo Kreuzer
2009-10-25 11:55:04 +00:00
parent 1987b47110
commit 067454570d
1 changed files with 14 additions and 16 deletions
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reactos/drivers/base/kddll/kddll.c
+14 -16
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@@ -307,15 +307,6 @@ KdReceivePacket(
}
}
/* Compare checksum */
if (Packet.Checksum != Checksum)
{
KDDBGPRINT("KdReceivePacket - wrong cheksum, got %x, calculated %x\n",
Packet.Checksum, Checksum);
KdpSendControlPacket(PACKET_TYPE_KD_RESEND, 0);
continue;
}
/* We must receive a PACKET_TRAILING_BYTE now */
KdStatus = KdpReceiveBuffer(&Byte, sizeof(UCHAR));
if (KdStatus != KDP_PACKET_RECEIVED || Byte != PACKET_TRAILING_BYTE)
@@ -325,21 +316,28 @@ KdReceivePacket(
continue;
}
/* Did we get the right packet type? */
if (PacketType != Packet.PacketType)
/* Compare checksum */
if (Packet.Checksum != Checksum)
{
/* We received something different, ignore it. */
KDDBGPRINT("KdReceivePacket - wrong PacketType\n");
KdpSendControlPacket(PACKET_TYPE_KD_ACKNOWLEDGE, Packet.PacketId);
KDDBGPRINT("KdReceivePacket - wrong cheksum, got %x, calculated %x\n",
Packet.Checksum, Checksum);
KdpSendControlPacket(PACKET_TYPE_KD_RESEND, 0);
continue;
}
/* Acknowledge the received packet */
KdpSendControlPacket(PACKET_TYPE_KD_ACKNOWLEDGE, Packet.PacketId);
//KDDBGPRINT("KdReceivePacket - all ok\n");
/* Did we get the right packet type? */
if (PacketType == Packet.PacketType)
{
/* Yes, return success */
//KDDBGPRINT("KdReceivePacket - all ok\n");
return KDP_PACKET_RECEIVED;
}
return KDP_PACKET_RECEIVED;
/* We received something different, ignore it. */
KDDBGPRINT("KdReceivePacket - wrong PacketType\n");
}
return KDP_PACKET_RECEIVED;