morgan/FreeRDP
1
0
Fork 0
mirror of https://github.com/morgan9e/FreeRDP synced 2026-04-14 00:14:11 +09:00
Code Issues Packages Projects Releases Wiki Activity

[proxy,channels] drop drdynvc packets not tracked

Browse Source 
When receiving dynamic channel packets that do not belong to an open
channel drop the packet.
This commit is contained in:
akallabeth
2025-08-25 16:25:15 +02:00
parent dc463e1fcd
commit 2dd38aaeef
1 changed files with 5 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
server/proxy/channels/pf_channel_drdynvc.c
View File

@@ -508,9 +508,9 @@ static PfChannelResult DynvcTrackerHandleCmdDATA(ChannelStateTracker* tracker,
isBackData ? &dynChannel->backTracker : &dynChannel->frontTracker;
if (dynChannel->openStatus != CHANNEL_OPENSTATE_OPENED)
{
DynvcTrackerLog(dynChannelContext->log, WLOG_ERROR, dynChannel, cmd, isBackData,
"channel is not opened");
return PF_CHANNEL_RESULT_ERROR;
DynvcTrackerLog(dynChannelContext->log, WLOG_WARN, dynChannel, cmd, isBackData,
"channel is not opened, dropping packet");
return PF_CHANNEL_RESULT_DROP;
}
switch (cmd)
@@ -673,6 +673,8 @@ static PfChannelResult DynvcTrackerHandleCmd(ChannelStateTracker* tracker,
return channelTracker_flushCurrent(tracker, firstPacket, lastPacket, !isBackData);
default:
DynvcTrackerLog(dynChannelContext->log, WLOG_ERROR, dynChannel, cmd, isBackData,
"Invalid command ID");
return PF_CHANNEL_RESULT_ERROR;
}
}