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core/server: Use correct size for DVC data PDUs

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The VirtualChannelChunkSize setting refers to the VCChunkSize for static
channels and not to the maximum size for DVC data PDUs.
DVC data PDUs are according to [MS-RDPEDYC] always limited to 1600
Bytes.
This commit is contained in:
Pascal Nowack
2023-04-27 10:43:36 +02:00
committed by akallabeth
parent 05edcbc357
commit 264d19765c
1 changed files with 3 additions and 4 deletions
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7
libfreerdp/core/server.c
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@@ -49,6 +49,8 @@
} while (0)
#endif
#define DVC_MAX_DATA_PDU_SIZE 1600
typedef struct
{
UINT16 channelId;
@@ -1578,12 +1580,9 @@ BOOL WINAPI FreeRDP_WTSVirtualChannelWrite(HANDLE hChannelHandle, PCHAR Buffer,
WINPR_ASSERT(channel->client);
context = channel->client->context;
WINPR_ASSERT(context);
WINPR_ASSERT(context->settings);
while (Length > 0)
{
const UINT32 VirtualChannelChunkSize =
freerdp_settings_get_uint32(context->settings, FreeRDP_VirtualChannelChunkSize);
s = Stream_New(NULL, VirtualChannelChunkSize);
s = Stream_New(NULL, DVC_MAX_DATA_PDU_SIZE);
if (!s)
{