boolean rdp_read_header(rdpRdp* rdp, STREAM* s, uint16* length, uint16* channel_id)
{
uint16 initiator;
enum DomainMCSPDU MCSPDU;
MCSPDU = (rdp->settings->server_mode) ? DomainMCSPDU_SendDataRequest : DomainMCSPDU_SendDataIndication;
mcs_read_domain_mcspdu_header(s, &MCSPDU, length);
if (*length - 8 > stream_get_left(s))
return false;
if (MCSPDU == DomainMCSPDU_DisconnectProviderUltimatum)
{
uint8 reason;
(void) per_read_enumerated(s, &reason, 0);
rdp->disconnect = true;
return true;
}
per_read_integer16(s, &initiator, MCS_BASE_CHANNEL_ID); /* initiator (UserId) */
per_read_integer16(s, channel_id, 0); /* channelId */
stream_seek(s, 1); /* dataPriority + Segmentation (0x70) */
per_read_length(s, length); /* userData (OCTET_STRING) */
if (*length > stream_get_left(s))
return false;
return true;
}
BOOL gcc_read_conference_create_response(wStream* s, rdpMcs* mcs)
{
UINT16 length;
UINT32 tag;
UINT16 nodeID;
BYTE result;
BYTE choice;
BYTE number;
/* ConnectData */
if (!per_read_choice(s, &choice) ||
!per_read_object_identifier(s, t124_02_98_oid))
return FALSE;
/* ConnectData::connectPDU (OCTET_STRING) */
if (!per_read_length(s, &length))
return FALSE;
/* ConnectGCCPDU */
if (!per_read_choice(s, &choice))
return FALSE;
/* ConferenceCreateResponse::nodeID (UserID) */
if (!per_read_integer16(s, &nodeID, 1001))
return FALSE;
/* ConferenceCreateResponse::tag (INTEGER) */
if (!per_read_integer(s, &tag))
return FALSE;
/* ConferenceCreateResponse::result (ENUMERATED) */
if (!per_read_enumerated(s, &result, MCS_Result_enum_length))
return FALSE;
/* number of UserData sets */
if (!per_read_number_of_sets(s, &number))
return FALSE;
/* UserData::value present + select h221NonStandard (1) */
if (!per_read_choice(s, &choice))
return FALSE;
/* h221NonStandard */
if (!per_read_octet_string(s, h221_sc_key, 4, 4)) /* h221NonStandard, server-to-client H.221 key, "McDn" */
return FALSE;
/* userData (OCTET_STRING) */
if (!per_read_length(s, &length))
return FALSE;
if (!gcc_read_server_data_blocks(s, mcs, length))
{
WLog_ERR(TAG, "gcc_read_conference_create_response: gcc_read_server_data_blocks failed");
return FALSE;
}
return TRUE;
}
boolean gcc_read_conference_create_response(STREAM* s, rdpSettings* settings)
{
uint16 length;
uint32 tag;
uint16 nodeID;
uint8 result;
uint8 choice;
uint8 number;
/* ConnectData */
per_read_choice(s, &choice);
per_read_object_identifier(s, t124_02_98_oid);
/* ConnectData::connectPDU (OCTET_STRING) */
per_read_length(s, &length);
/* ConnectGCCPDU */
per_read_choice(s, &choice);
/* ConferenceCreateResponse::nodeID (UserID) */
per_read_integer16(s, &nodeID, 1001);
/* ConferenceCreateResponse::tag (INTEGER) */
per_read_integer(s, &tag);
/* ConferenceCreateResponse::result (ENUMERATED) */
per_read_enumerated(s, &result, MCS_Result_enum_length);
/* number of UserData sets */
per_read_number_of_sets(s, &number);
/* UserData::value present + select h221NonStandard (1) */
per_read_choice(s, &choice);
/* h221NonStandard */
if (!per_read_octet_string(s, h221_sc_key, 4, 4)) /* h221NonStandard, server-to-client H.221 key, "McDn" */
return false;
/* userData (OCTET_STRING) */
per_read_length(s, &length);
if (!gcc_read_server_data_blocks(s, settings, length))
{
printf("gcc_read_conference_create_response: gcc_read_server_data_blocks failed\n");
return false;
}
return true;
}
tbool rdp_read_header(rdpRdp* rdp, STREAM* s, uint16* length, uint16* channel_id)
{
uint8 reason;
uint16 initiator;
enum DomainMCSPDU MCSPDU;
MCSPDU = (rdp->settings->server_mode) ? DomainMCSPDU_SendDataRequest : DomainMCSPDU_SendDataIndication;
if (!mcs_read_domain_mcspdu_header(s, &MCSPDU, length))
{
LLOGLN(0, ("rdp_read_header: mcs_read_domain_mcspdu_header failed"));
return false;
}
if (*length - 8 > stream_get_left(s))
{
LLOGLN(0, ("rdp_read_header: parse error"));
return false;
}
if (MCSPDU == DomainMCSPDU_DisconnectProviderUltimatum)
{
if (!per_read_enumerated(s, &reason, 0))
{
LLOGLN(0, ("rdp_read_header: per_read_enumerated failed"));
return false;
}
rdp->disconnect = true;
*channel_id = MCS_GLOBAL_CHANNEL_ID;
return true;
}
if (stream_get_left(s) < 5)
{
LLOGLN(0, ("rdp_read_header: parse error"));
return false;
}
per_read_integer16(s, &initiator, MCS_BASE_CHANNEL_ID); /* initiator (UserId) */
per_read_integer16(s, channel_id, 0); /* channelId */
stream_seek(s, 1); /* dataPriority + Segmentation (0x70) */
if (!per_read_length(s, length)) /* userData (OCTET_STRING) */
{
LLOGLN(0, ("rdp_read_header: per_read_length failed"));
return false;
}
if (*length > stream_get_left(s))
{
return false;
LLOGLN(0, ("rdp_read_header: parse error"));
}
return true;
}
BOOL rdp_read_header(rdpRdp* rdp, wStream* s, UINT16* length, UINT16* channel_id)
{
UINT16 initiator;
enum DomainMCSPDU MCSPDU;
MCSPDU = (rdp->settings->ServerMode) ? DomainMCSPDU_SendDataRequest : DomainMCSPDU_SendDataIndication;
if (!mcs_read_domain_mcspdu_header(s, &MCSPDU, length))
{
if (MCSPDU != DomainMCSPDU_DisconnectProviderUltimatum)
return FALSE;
}
if (*length - 8 > Stream_GetRemainingLength(s))
return FALSE;
if (MCSPDU == DomainMCSPDU_DisconnectProviderUltimatum)
{
BYTE reason;
(void) per_read_enumerated(s, &reason, 0);
DEBUG_RDP("DisconnectProviderUltimatum from server, reason code 0x%02x\n", reason);
rdp->disconnect = TRUE;
return TRUE;
}
if (Stream_GetRemainingLength(s) < 5)
return FALSE;
per_read_integer16(s, &initiator, MCS_BASE_CHANNEL_ID); /* initiator (UserId) */
per_read_integer16(s, channel_id, 0); /* channelId */
Stream_Seek(s, 1); /* dataPriority + Segmentation (0x70) */
if (!per_read_length(s, length)) /* userData (OCTET_STRING) */
return FALSE;
if (*length > Stream_GetRemainingLength(s))
return FALSE;
return TRUE;
}