FreeRDP/libfreerdp/core/heartbeat.c
akallabeth bc31bae2b5 [core] Unify RDP state machine
Up to this commit the client and server state machine handling used
different return values for state machine changes.
This is fixed with this commit:
* Use common enum return values
* Use common helper functions
2022-11-15 09:57:46 +01:00

99 lines
2.6 KiB
C

/**
* FreeRDP: A Remote Desktop Protocol Implementation
* Heartbeat PDUs
*
* Copyright 2014 Dell Software <Mike.McDonald@software.dell.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <freerdp/config.h>
#define WITH_DEBUG_HEARTBEAT
#include "heartbeat.h"
state_run_t rdp_recv_heartbeat_packet(rdpRdp* rdp, wStream* s)
{
BYTE reserved;
BYTE period;
BYTE count1;
BYTE count2;
BOOL rc;
WINPR_ASSERT(rdp);
WINPR_ASSERT(rdp->context);
WINPR_ASSERT(s);
if (!Stream_CheckAndLogRequiredLength(AUTODETECT_TAG, s, 4))
return STATE_RUN_FAILED;
Stream_Read_UINT8(s, reserved); /* reserved (1 byte) */
Stream_Read_UINT8(s, period); /* period (1 byte) */
Stream_Read_UINT8(s, count1); /* count1 (1 byte) */
Stream_Read_UINT8(s, count2); /* count2 (1 byte) */
WLog_DBG(HEARTBEAT_TAG,
"received Heartbeat PDU -> period=%" PRIu8 ", count1=%" PRIu8 ", count2=%" PRIu8 "",
period, count1, count2);
rc = IFCALLRESULT(TRUE, rdp->heartbeat->ServerHeartbeat, rdp->context->instance, period, count1,
count2);
if (!rc)
{
WLog_ERR(HEARTBEAT_TAG, "heartbeat->ServerHeartbeat callback failed!");
return STATE_RUN_FAILED;
}
return STATE_RUN_SUCCESS;
}
BOOL freerdp_heartbeat_send_heartbeat_pdu(freerdp_peer* peer, BYTE period, BYTE count1, BYTE count2)
{
rdpRdp* rdp = peer->context->rdp;
wStream* s = rdp_message_channel_pdu_init(rdp);
if (!s)
return FALSE;
Stream_Seek_UINT8(s); /* reserved (1 byte) */
Stream_Write_UINT8(s, period); /* period (1 byte) */
Stream_Write_UINT8(s, count1); /* count1 (1 byte) */
Stream_Write_UINT8(s, count2); /* count2 (1 byte) */
WLog_DBG(HEARTBEAT_TAG,
"sending Heartbeat PDU -> period=%" PRIu8 ", count1=%" PRIu8 ", count2=%" PRIu8 "",
period, count1, count2);
if (!rdp_send_message_channel_pdu(rdp, s, SEC_HEARTBEAT))
return FALSE;
return TRUE;
}
rdpHeartbeat* heartbeat_new(void)
{
rdpHeartbeat* heartbeat = (rdpHeartbeat*)calloc(1, sizeof(rdpHeartbeat));
if (heartbeat)
{
}
return heartbeat;
}
void heartbeat_free(rdpHeartbeat* heartbeat)
{
free(heartbeat);
}