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[core,gateway] parse [MS-TSGU] 2.2.10.5 HTTP_CHANNEL_RESPONSE_OPTIONAL Structure

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just to avoid warnings about incompletely parsed packets. Currently
unused as no UDP support is implemented.
This commit is contained in:
Armin Novak
2026-02-23 11:09:11 +01:00
parent eef3e85be1
commit 3d8bcd1c71
1 changed files with 36 additions and 2 deletions
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38
libfreerdp/core/gateway/rdg.c
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@@ -53,7 +53,7 @@
/* HTTP channel response fields present flags. */
#define HTTP_CHANNEL_RESPONSE_FIELD_CHANNELID 0x1
#define HTTP_CHANNEL_RESPONSE_OPTIONAL 0x2
#define HTTP_CHANNEL_RESPONSE_FIELD_AUTHNCOOKIE 0x2
#define HTTP_CHANNEL_RESPONSE_FIELD_UDPPORT 0x4
/* HTTP extended auth. */
@@ -181,7 +181,7 @@ static const t_flag_mapping tunnel_response_fields_present[] = {
static const t_flag_mapping channel_response_fields_present[] = {
{ HTTP_CHANNEL_RESPONSE_FIELD_CHANNELID, "HTTP_CHANNEL_RESPONSE_FIELD_CHANNELID" },
{ HTTP_CHANNEL_RESPONSE_OPTIONAL, "HTTP_CHANNEL_RESPONSE_OPTIONAL" },
{ HTTP_CHANNEL_RESPONSE_FIELD_AUTHNCOOKIE, "HTTP_CHANNEL_RESPONSE_FIELD_AUTHNCOOKIE" },
{ HTTP_CHANNEL_RESPONSE_FIELD_UDPPORT, "HTTP_CHANNEL_RESPONSE_FIELD_UDPPORT" }
};
@@ -1063,6 +1063,37 @@ static BOOL rdg_process_extauth_sspi(rdpRdg* rdg, wStream* s)
return FALSE;
}
static BOOL rdg_process_channel_response_optional(rdpRdg* rdg, wStream* s, UINT16 fieldsPresent)
{
if ((fieldsPresent & HTTP_CHANNEL_RESPONSE_FIELD_CHANNELID) != 0)
{
if (!Stream_CheckAndLogRequiredCapacityWLog(rdg->log, s, 4))
return FALSE;
const UINT32 channelId = Stream_Get_UINT32(s);
WLog_Print(rdg->log, WLOG_DEBUG, "TODO: Got channelId=%" PRIu32, channelId);
}
if ((fieldsPresent & HTTP_CHANNEL_RESPONSE_FIELD_UDPPORT) != 0)
{
if (!Stream_CheckAndLogRequiredCapacityWLog(rdg->log, s, 2))
return FALSE;
const UINT16 udpPort = Stream_Get_UINT16(s);
WLog_Print(rdg->log, WLOG_DEBUG, "TODO: Got udpPort=%" PRIu32, udpPort);
}
if ((fieldsPresent & HTTP_CHANNEL_RESPONSE_FIELD_AUTHNCOOKIE) != 0)
{
if (!Stream_CheckAndLogRequiredCapacityWLog(rdg->log, s, 2))
return FALSE;
const UINT16 blobLen = Stream_Get_UINT16(s);
if (!Stream_CheckAndLogRequiredCapacityWLog(rdg->log, s, blobLen))
return FALSE;
WLog_Print(rdg->log, WLOG_DEBUG, "TODO: Got UDP auth blob=%" PRIu32, blobLen);
if (!Stream_SafeSeek(s, blobLen))
return FALSE;
}
return TRUE;
}
static BOOL rdg_process_channel_response(rdpRdg* rdg, wStream* s)
{
UINT16 fieldsPresent = 0;
@@ -1093,6 +1124,9 @@ static BOOL rdg_process_channel_response(rdpRdg* rdg, wStream* s)
return FALSE;
}
if (!rdg_process_channel_response_optional(rdg, s, fieldsPresent))
return FALSE;
rdg->state = RDG_CLIENT_STATE_OPENED;
return TRUE;
}