1041 lines
27 KiB
C
1041 lines
27 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Implementation
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* Input PDUs
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*
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* Copyright 2011 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <freerdp/config.h>
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#include <winpr/crt.h>
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#include <winpr/assert.h>
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#include <freerdp/input.h>
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#include <freerdp/log.h>
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#include "message.h"
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#include "input.h"
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#define TAG FREERDP_TAG("core")
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/* Input Events */
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#define INPUT_EVENT_SYNC 0x0000
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#define INPUT_EVENT_SCANCODE 0x0004
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#define INPUT_EVENT_UNICODE 0x0005
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#define INPUT_EVENT_MOUSE 0x8001
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#define INPUT_EVENT_MOUSEX 0x8002
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#define INPUT_EVENT_MOUSEREL 0x8004
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#define RDP_CLIENT_INPUT_PDU_HEADER_LENGTH 4
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static void rdp_write_client_input_pdu_header(wStream* s, UINT16 number)
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{
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WINPR_ASSERT(s);
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WINPR_ASSERT(Stream_GetRemainingCapacity(s) >= 4);
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Stream_Write_UINT16(s, number); /* numberEvents (2 bytes) */
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Stream_Write_UINT16(s, 0); /* pad2Octets (2 bytes) */
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}
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static void rdp_write_input_event_header(wStream* s, UINT32 time, UINT16 type)
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{
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WINPR_ASSERT(s);
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WINPR_ASSERT(Stream_GetRemainingCapacity(s) >= 6);
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Stream_Write_UINT32(s, time); /* eventTime (4 bytes) */
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Stream_Write_UINT16(s, type); /* messageType (2 bytes) */
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}
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static wStream* rdp_client_input_pdu_init(rdpRdp* rdp, UINT16 type)
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{
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wStream* s;
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s = rdp_data_pdu_init(rdp);
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if (!s)
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return NULL;
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rdp_write_client_input_pdu_header(s, 1);
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rdp_write_input_event_header(s, 0, type);
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return s;
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}
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static BOOL rdp_send_client_input_pdu(rdpRdp* rdp, wStream* s)
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{
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return rdp_send_data_pdu(rdp, s, DATA_PDU_TYPE_INPUT, rdp->mcs->userId);
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}
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static void input_write_synchronize_event(wStream* s, UINT32 flags)
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{
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WINPR_ASSERT(s);
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WINPR_ASSERT(Stream_GetRemainingCapacity(s) >= 6);
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Stream_Write_UINT16(s, 0); /* pad2Octets (2 bytes) */
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Stream_Write_UINT32(s, flags); /* toggleFlags (4 bytes) */
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}
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static BOOL input_ensure_client_running(rdpInput* input)
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{
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WINPR_ASSERT(input);
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if (freerdp_shall_disconnect_context(input->context))
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{
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WLog_WARN(TAG, "[APPLICATION BUG] input functions called after the session terminated");
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return FALSE;
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}
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return TRUE;
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}
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static BOOL input_send_synchronize_event(rdpInput* input, UINT32 flags)
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{
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wStream* s;
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rdpRdp* rdp;
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if (!input || !input->context)
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return FALSE;
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rdp = input->context->rdp;
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if (!input_ensure_client_running(input))
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return FALSE;
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s = rdp_client_input_pdu_init(rdp, INPUT_EVENT_SYNC);
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if (!s)
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return FALSE;
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input_write_synchronize_event(s, flags);
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return rdp_send_client_input_pdu(rdp, s);
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}
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static void input_write_keyboard_event(wStream* s, UINT16 flags, UINT16 code)
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{
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WINPR_ASSERT(s);
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WINPR_ASSERT(code <= UINT8_MAX);
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Stream_Write_UINT16(s, flags); /* keyboardFlags (2 bytes) */
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Stream_Write_UINT16(s, code); /* keyCode (2 bytes) */
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Stream_Write_UINT16(s, 0); /* pad2Octets (2 bytes) */
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}
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static BOOL input_send_keyboard_event(rdpInput* input, UINT16 flags, UINT8 code)
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{
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wStream* s;
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rdpRdp* rdp;
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if (!input || !input->context)
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return FALSE;
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rdp = input->context->rdp;
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if (!input_ensure_client_running(input))
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return FALSE;
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s = rdp_client_input_pdu_init(rdp, INPUT_EVENT_SCANCODE);
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if (!s)
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return FALSE;
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input_write_keyboard_event(s, flags, code);
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return rdp_send_client_input_pdu(rdp, s);
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}
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static void input_write_unicode_keyboard_event(wStream* s, UINT16 flags, UINT16 code)
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{
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Stream_Write_UINT16(s, flags); /* keyboardFlags (2 bytes) */
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Stream_Write_UINT16(s, code); /* unicodeCode (2 bytes) */
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Stream_Write_UINT16(s, 0); /* pad2Octets (2 bytes) */
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}
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static BOOL input_send_unicode_keyboard_event(rdpInput* input, UINT16 flags, UINT16 code)
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{
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wStream* s;
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rdpRdp* rdp;
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if (!input || !input->context)
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return FALSE;
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if (!input_ensure_client_running(input))
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return FALSE;
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if (!freerdp_settings_get_bool(input->context->settings, FreeRDP_UnicodeInput))
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{
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WLog_WARN(TAG, "Unicode input not supported by server.");
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return FALSE;
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}
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rdp = input->context->rdp;
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s = rdp_client_input_pdu_init(rdp, INPUT_EVENT_UNICODE);
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if (!s)
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return FALSE;
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input_write_unicode_keyboard_event(s, flags, code);
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return rdp_send_client_input_pdu(rdp, s);
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}
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static void input_write_mouse_event(wStream* s, UINT16 flags, UINT16 x, UINT16 y)
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{
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Stream_Write_UINT16(s, flags); /* pointerFlags (2 bytes) */
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Stream_Write_UINT16(s, x); /* xPos (2 bytes) */
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Stream_Write_UINT16(s, y); /* yPos (2 bytes) */
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}
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static BOOL input_send_mouse_event(rdpInput* input, UINT16 flags, UINT16 x, UINT16 y)
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{
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wStream* s;
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rdpRdp* rdp;
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if (!input || !input->context || !input->context->settings)
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return FALSE;
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rdp = input->context->rdp;
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if (!input_ensure_client_running(input))
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return FALSE;
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if (!freerdp_settings_get_bool(input->context->settings, FreeRDP_HasHorizontalWheel))
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{
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if (flags & PTR_FLAGS_HWHEEL)
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{
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WLog_WARN(TAG,
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"skip mouse event %" PRIu16 "x%" PRIu16 " flags=0x%04" PRIX16
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", no horizontal mouse wheel supported",
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x, y, flags);
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return TRUE;
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}
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}
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s = rdp_client_input_pdu_init(rdp, INPUT_EVENT_MOUSE);
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if (!s)
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return FALSE;
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input_write_mouse_event(s, flags, x, y);
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return rdp_send_client_input_pdu(rdp, s);
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}
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static BOOL input_send_relmouse_event(rdpInput* input, UINT16 flags, INT16 xDelta, INT16 yDelta)
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{
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wStream* s;
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rdpRdp* rdp;
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if (!input || !input->context || !input->context->settings)
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return FALSE;
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rdp = input->context->rdp;
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if (!input_ensure_client_running(input))
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return FALSE;
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if (!freerdp_settings_get_bool(input->context->settings, FreeRDP_HasRelativeMouseEvent))
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{
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WLog_ERR(TAG, "Sending relative mouse event, but no support for that");
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return FALSE;
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}
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s = rdp_client_input_pdu_init(rdp, INPUT_EVENT_MOUSEREL);
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if (!s)
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return FALSE;
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Stream_Write_UINT16(s, flags); /* pointerFlags (2 bytes) */
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Stream_Write_INT16(s, xDelta); /* xDelta (2 bytes) */
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Stream_Write_INT16(s, yDelta); /* yDelta (2 bytes) */
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return rdp_send_client_input_pdu(rdp, s);
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}
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static void input_write_extended_mouse_event(wStream* s, UINT16 flags, UINT16 x, UINT16 y)
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{
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Stream_Write_UINT16(s, flags); /* pointerFlags (2 bytes) */
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Stream_Write_UINT16(s, x); /* xPos (2 bytes) */
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Stream_Write_UINT16(s, y); /* yPos (2 bytes) */
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}
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static BOOL input_send_extended_mouse_event(rdpInput* input, UINT16 flags, UINT16 x, UINT16 y)
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{
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wStream* s;
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rdpRdp* rdp;
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WINPR_ASSERT(input);
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WINPR_ASSERT(input->context);
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WINPR_ASSERT(input->context->settings);
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rdp = input->context->rdp;
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WINPR_ASSERT(rdp);
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if (!input_ensure_client_running(input))
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return FALSE;
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if (!freerdp_settings_get_bool(input->context->settings, FreeRDP_HasExtendedMouseEvent))
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{
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WLog_WARN(TAG,
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"skip extended mouse event %" PRIu16 "x%" PRIu16 " flags=0x%04" PRIX16
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", no extended mouse events supported",
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x, y, flags);
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return TRUE;
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}
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s = rdp_client_input_pdu_init(rdp, INPUT_EVENT_MOUSEX);
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if (!s)
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return FALSE;
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input_write_extended_mouse_event(s, flags, x, y);
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return rdp_send_client_input_pdu(rdp, s);
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}
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static BOOL input_send_focus_in_event(rdpInput* input, UINT16 toggleStates)
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{
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/* send a tab up like mstsc.exe */
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if (!input_send_keyboard_event(input, KBD_FLAGS_RELEASE, 0x0f))
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return FALSE;
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/* send the toggle key states */
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if (!input_send_synchronize_event(input, (toggleStates & 0x1F)))
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return FALSE;
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/* send another tab up like mstsc.exe */
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return input_send_keyboard_event(input, KBD_FLAGS_RELEASE, 0x0f);
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}
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static BOOL input_send_keyboard_pause_event(rdpInput* input)
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{
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/* In ancient days, pause-down without control sent E1 1D 45 E1 9D C5,
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* and pause-up sent nothing. However, reverse engineering mstsc shows
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* it sending the following sequence:
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*/
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/* Control down (0x1D) */
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if (!input_send_keyboard_event(input, KBD_FLAGS_EXTENDED1,
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RDP_SCANCODE_CODE(RDP_SCANCODE_LCONTROL)))
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return FALSE;
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/* Numlock down (0x45) */
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if (!input_send_keyboard_event(input, 0, RDP_SCANCODE_CODE(RDP_SCANCODE_NUMLOCK)))
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return FALSE;
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/* Control up (0x1D) */
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if (!input_send_keyboard_event(input, KBD_FLAGS_RELEASE | KBD_FLAGS_EXTENDED1,
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RDP_SCANCODE_CODE(RDP_SCANCODE_LCONTROL)))
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return FALSE;
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/* Numlock up (0x45) */
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return input_send_keyboard_event(input, KBD_FLAGS_RELEASE,
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RDP_SCANCODE_CODE(RDP_SCANCODE_NUMLOCK));
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}
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static BOOL input_send_fastpath_synchronize_event(rdpInput* input, UINT32 flags)
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{
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wStream* s;
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rdpRdp* rdp;
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WINPR_ASSERT(input);
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WINPR_ASSERT(input->context);
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rdp = input->context->rdp;
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WINPR_ASSERT(rdp);
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if (!input_ensure_client_running(input))
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return FALSE;
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/* The FastPath Synchronization eventFlags has identical values as SlowPath */
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s = fastpath_input_pdu_init(rdp->fastpath, (BYTE)flags, FASTPATH_INPUT_EVENT_SYNC);
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if (!s)
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return FALSE;
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return fastpath_send_input_pdu(rdp->fastpath, s);
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}
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static BOOL input_send_fastpath_keyboard_event(rdpInput* input, UINT16 flags, UINT8 code)
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{
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wStream* s;
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BYTE eventFlags = 0;
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rdpRdp* rdp;
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WINPR_ASSERT(input);
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WINPR_ASSERT(input->context);
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rdp = input->context->rdp;
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WINPR_ASSERT(rdp);
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if (!input_ensure_client_running(input))
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return FALSE;
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eventFlags |= (flags & KBD_FLAGS_RELEASE) ? FASTPATH_INPUT_KBDFLAGS_RELEASE : 0;
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eventFlags |= (flags & KBD_FLAGS_EXTENDED) ? FASTPATH_INPUT_KBDFLAGS_EXTENDED : 0;
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eventFlags |= (flags & KBD_FLAGS_EXTENDED1) ? FASTPATH_INPUT_KBDFLAGS_PREFIX_E1 : 0;
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s = fastpath_input_pdu_init(rdp->fastpath, eventFlags, FASTPATH_INPUT_EVENT_SCANCODE);
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if (!s)
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return FALSE;
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WINPR_ASSERT(code <= UINT8_MAX);
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Stream_Write_UINT8(s, (UINT8)code); /* keyCode (1 byte) */
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return fastpath_send_input_pdu(rdp->fastpath, s);
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}
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static BOOL input_send_fastpath_unicode_keyboard_event(rdpInput* input, UINT16 flags, UINT16 code)
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{
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wStream* s;
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BYTE eventFlags = 0;
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rdpRdp* rdp;
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WINPR_ASSERT(input);
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WINPR_ASSERT(input->context);
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WINPR_ASSERT(input->context->settings);
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rdp = input->context->rdp;
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WINPR_ASSERT(rdp);
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if (!input_ensure_client_running(input))
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return FALSE;
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if (!freerdp_settings_get_bool(input->context->settings, FreeRDP_UnicodeInput))
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{
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WLog_WARN(TAG, "Unicode input not supported by server.");
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return FALSE;
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}
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eventFlags |= (flags & KBD_FLAGS_RELEASE) ? FASTPATH_INPUT_KBDFLAGS_RELEASE : 0;
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s = fastpath_input_pdu_init(rdp->fastpath, eventFlags, FASTPATH_INPUT_EVENT_UNICODE);
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if (!s)
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return FALSE;
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Stream_Write_UINT16(s, code); /* unicodeCode (2 bytes) */
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return fastpath_send_input_pdu(rdp->fastpath, s);
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}
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static BOOL input_send_fastpath_mouse_event(rdpInput* input, UINT16 flags, UINT16 x, UINT16 y)
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{
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wStream* s;
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rdpRdp* rdp;
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WINPR_ASSERT(input);
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WINPR_ASSERT(input->context);
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WINPR_ASSERT(input->context->settings);
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rdp = input->context->rdp;
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WINPR_ASSERT(rdp);
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if (!input_ensure_client_running(input))
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return FALSE;
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if (!freerdp_settings_get_bool(input->context->settings, FreeRDP_HasHorizontalWheel))
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{
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if (flags & PTR_FLAGS_HWHEEL)
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{
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WLog_WARN(TAG,
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"skip mouse event %" PRIu16 "x%" PRIu16 " flags=0x%04" PRIX16
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", no horizontal mouse wheel supported",
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x, y, flags);
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return TRUE;
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}
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}
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s = fastpath_input_pdu_init(rdp->fastpath, 0, FASTPATH_INPUT_EVENT_MOUSE);
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if (!s)
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return FALSE;
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input_write_mouse_event(s, flags, x, y);
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return fastpath_send_input_pdu(rdp->fastpath, s);
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}
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static BOOL input_send_fastpath_extended_mouse_event(rdpInput* input, UINT16 flags, UINT16 x,
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UINT16 y)
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{
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wStream* s;
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rdpRdp* rdp;
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WINPR_ASSERT(input);
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WINPR_ASSERT(input->context);
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rdp = input->context->rdp;
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WINPR_ASSERT(rdp);
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if (!input_ensure_client_running(input))
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return FALSE;
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if (!freerdp_settings_get_bool(input->context->settings, FreeRDP_HasExtendedMouseEvent))
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{
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WLog_WARN(TAG,
|
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"skip extended mouse event %" PRIu16 "x%" PRIu16 " flags=0x%04" PRIX16
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", no extended mouse events supported",
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x, y, flags);
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return TRUE;
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}
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s = fastpath_input_pdu_init(rdp->fastpath, 0, FASTPATH_INPUT_EVENT_MOUSEX);
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if (!s)
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return FALSE;
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input_write_extended_mouse_event(s, flags, x, y);
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return fastpath_send_input_pdu(rdp->fastpath, s);
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}
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static BOOL input_send_fastpath_relmouse_event(rdpInput* input, UINT16 flags, UINT16 xDelta,
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UINT16 yDelta)
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{
|
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wStream* s;
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rdpRdp* rdp;
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WINPR_ASSERT(input);
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WINPR_ASSERT(input->context);
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WINPR_ASSERT(input->context->settings);
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rdp = input->context->rdp;
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WINPR_ASSERT(rdp);
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if (!input_ensure_client_running(input))
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return FALSE;
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if (!freerdp_settings_get_bool(input->context->settings, FreeRDP_HasRelativeMouseEvent))
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{
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WLog_ERR(TAG, "Sending relative fastpath mouse event, but no support for that announced");
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return FALSE;
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}
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s = fastpath_input_pdu_init(rdp->fastpath, 0, TS_FP_RELPOINTER_EVENT);
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if (!s)
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|
return FALSE;
|
|
|
|
Stream_Write_UINT16(s, flags); /* pointerFlags (2 bytes) */
|
|
Stream_Write_INT16(s, xDelta); /* xDelta (2 bytes) */
|
|
Stream_Write_INT16(s, yDelta); /* yDelta (2 bytes) */
|
|
return fastpath_send_input_pdu(rdp->fastpath, s);
|
|
}
|
|
|
|
static BOOL input_send_fastpath_qoe_event(rdpInput* input, UINT32 timestampMS)
|
|
{
|
|
WINPR_ASSERT(input);
|
|
WINPR_ASSERT(input->context);
|
|
WINPR_ASSERT(input->context->settings);
|
|
|
|
rdpRdp* rdp = input->context->rdp;
|
|
WINPR_ASSERT(rdp);
|
|
|
|
if (!input_ensure_client_running(input))
|
|
return FALSE;
|
|
|
|
if (!freerdp_settings_get_bool(input->context->settings, FreeRDP_HasQoeEvent))
|
|
{
|
|
WLog_ERR(TAG, "Sending qoe event, but no support for that announced");
|
|
return FALSE;
|
|
}
|
|
|
|
wStream* s = fastpath_input_pdu_init(rdp->fastpath, 0, TS_FP_QOETIMESTAMP_EVENT);
|
|
|
|
if (!s)
|
|
return FALSE;
|
|
|
|
if (!Stream_EnsureRemainingCapacity(s, 4))
|
|
{
|
|
Stream_Free(s, TRUE);
|
|
return FALSE;
|
|
}
|
|
|
|
Stream_Write_UINT32(s, timestampMS);
|
|
return fastpath_send_input_pdu(rdp->fastpath, s);
|
|
}
|
|
|
|
static BOOL input_send_fastpath_focus_in_event(rdpInput* input, UINT16 toggleStates)
|
|
{
|
|
wStream* s;
|
|
BYTE eventFlags = 0;
|
|
rdpRdp* rdp;
|
|
|
|
WINPR_ASSERT(input);
|
|
WINPR_ASSERT(input->context);
|
|
|
|
rdp = input->context->rdp;
|
|
WINPR_ASSERT(rdp);
|
|
|
|
if (!input_ensure_client_running(input))
|
|
return FALSE;
|
|
|
|
s = fastpath_input_pdu_init_header(rdp->fastpath);
|
|
|
|
if (!s)
|
|
return FALSE;
|
|
|
|
/* send a tab up like mstsc.exe */
|
|
eventFlags = FASTPATH_INPUT_KBDFLAGS_RELEASE | FASTPATH_INPUT_EVENT_SCANCODE << 5;
|
|
Stream_Write_UINT8(s, eventFlags); /* Key Release event (1 byte) */
|
|
Stream_Write_UINT8(s, 0x0f); /* keyCode (1 byte) */
|
|
/* send the toggle key states */
|
|
eventFlags = (toggleStates & 0x1F) | FASTPATH_INPUT_EVENT_SYNC << 5;
|
|
Stream_Write_UINT8(s, eventFlags); /* toggle state (1 byte) */
|
|
/* send another tab up like mstsc.exe */
|
|
eventFlags = FASTPATH_INPUT_KBDFLAGS_RELEASE | FASTPATH_INPUT_EVENT_SCANCODE << 5;
|
|
Stream_Write_UINT8(s, eventFlags); /* Key Release event (1 byte) */
|
|
Stream_Write_UINT8(s, 0x0f); /* keyCode (1 byte) */
|
|
return fastpath_send_multiple_input_pdu(rdp->fastpath, s, 3);
|
|
}
|
|
|
|
static BOOL input_send_fastpath_keyboard_pause_event(rdpInput* input)
|
|
{
|
|
/* In ancient days, pause-down without control sent E1 1D 45 E1 9D C5,
|
|
* and pause-up sent nothing. However, reverse engineering mstsc shows
|
|
* it sending the following sequence:
|
|
*/
|
|
wStream* s;
|
|
const BYTE keyDownEvent = FASTPATH_INPUT_EVENT_SCANCODE << 5;
|
|
const BYTE keyUpEvent = (FASTPATH_INPUT_EVENT_SCANCODE << 5) | FASTPATH_INPUT_KBDFLAGS_RELEASE;
|
|
rdpRdp* rdp;
|
|
|
|
WINPR_ASSERT(input);
|
|
WINPR_ASSERT(input->context);
|
|
|
|
rdp = input->context->rdp;
|
|
WINPR_ASSERT(rdp);
|
|
|
|
if (!input_ensure_client_running(input))
|
|
return FALSE;
|
|
|
|
s = fastpath_input_pdu_init_header(rdp->fastpath);
|
|
|
|
if (!s)
|
|
return FALSE;
|
|
|
|
/* Control down (0x1D) */
|
|
Stream_Write_UINT8(s, keyDownEvent | FASTPATH_INPUT_KBDFLAGS_PREFIX_E1);
|
|
Stream_Write_UINT8(s, RDP_SCANCODE_CODE(RDP_SCANCODE_LCONTROL));
|
|
/* Numlock down (0x45) */
|
|
Stream_Write_UINT8(s, keyDownEvent);
|
|
Stream_Write_UINT8(s, RDP_SCANCODE_CODE(RDP_SCANCODE_NUMLOCK));
|
|
/* Control up (0x1D) */
|
|
Stream_Write_UINT8(s, keyUpEvent | FASTPATH_INPUT_KBDFLAGS_PREFIX_E1);
|
|
Stream_Write_UINT8(s, RDP_SCANCODE_CODE(RDP_SCANCODE_LCONTROL));
|
|
/* Numlock down (0x45) */
|
|
Stream_Write_UINT8(s, keyUpEvent);
|
|
Stream_Write_UINT8(s, RDP_SCANCODE_CODE(RDP_SCANCODE_NUMLOCK));
|
|
return fastpath_send_multiple_input_pdu(rdp->fastpath, s, 4);
|
|
}
|
|
|
|
static BOOL input_recv_sync_event(rdpInput* input, wStream* s)
|
|
{
|
|
UINT32 toggleFlags;
|
|
|
|
WINPR_ASSERT(input);
|
|
WINPR_ASSERT(s);
|
|
|
|
if (!Stream_CheckAndLogRequiredLength(TAG, s, 6))
|
|
return FALSE;
|
|
|
|
Stream_Seek(s, 2); /* pad2Octets (2 bytes) */
|
|
Stream_Read_UINT32(s, toggleFlags); /* toggleFlags (4 bytes) */
|
|
return IFCALLRESULT(TRUE, input->SynchronizeEvent, input, toggleFlags);
|
|
}
|
|
|
|
static BOOL input_recv_keyboard_event(rdpInput* input, wStream* s)
|
|
{
|
|
UINT16 keyboardFlags, keyCode;
|
|
|
|
WINPR_ASSERT(input);
|
|
WINPR_ASSERT(s);
|
|
|
|
if (!Stream_CheckAndLogRequiredLength(TAG, s, 6))
|
|
return FALSE;
|
|
|
|
Stream_Read_UINT16(s, keyboardFlags); /* keyboardFlags (2 bytes) */
|
|
Stream_Read_UINT16(s, keyCode); /* keyCode (2 bytes) */
|
|
Stream_Seek(s, 2); /* pad2Octets (2 bytes) */
|
|
|
|
if (keyboardFlags & KBD_FLAGS_RELEASE)
|
|
keyboardFlags &= ~KBD_FLAGS_DOWN;
|
|
|
|
if (keyCode & 0xFF00)
|
|
WLog_WARN(TAG,
|
|
"Problematic [MS-RDPBCGR] 2.2.8.1.1.3.1.1.1 Keyboard Event (TS_KEYBOARD_EVENT) "
|
|
"keyCode=0x%04" PRIx16
|
|
", high byte values should be sent in keyboardFlags field, ignoring.",
|
|
keyCode);
|
|
return IFCALLRESULT(TRUE, input->KeyboardEvent, input, keyboardFlags, keyCode & 0xFF);
|
|
}
|
|
|
|
static BOOL input_recv_unicode_keyboard_event(rdpInput* input, wStream* s)
|
|
{
|
|
UINT16 keyboardFlags, unicodeCode;
|
|
|
|
WINPR_ASSERT(input);
|
|
WINPR_ASSERT(s);
|
|
|
|
if (!Stream_CheckAndLogRequiredLength(TAG, s, 6))
|
|
return FALSE;
|
|
|
|
Stream_Read_UINT16(s, keyboardFlags); /* keyboardFlags (2 bytes) */
|
|
Stream_Read_UINT16(s, unicodeCode); /* unicodeCode (2 bytes) */
|
|
Stream_Seek(s, 2); /* pad2Octets (2 bytes) */
|
|
|
|
/* "fix" keyboardFlags - see comment in input_recv_keyboard_event() */
|
|
|
|
if (keyboardFlags & KBD_FLAGS_RELEASE)
|
|
keyboardFlags &= ~KBD_FLAGS_DOWN;
|
|
|
|
return IFCALLRESULT(TRUE, input->UnicodeKeyboardEvent, input, keyboardFlags, unicodeCode);
|
|
}
|
|
|
|
static BOOL input_recv_mouse_event(rdpInput* input, wStream* s)
|
|
{
|
|
UINT16 pointerFlags, xPos, yPos;
|
|
|
|
WINPR_ASSERT(input);
|
|
WINPR_ASSERT(s);
|
|
|
|
if (!Stream_CheckAndLogRequiredLength(TAG, s, 6))
|
|
return FALSE;
|
|
|
|
Stream_Read_UINT16(s, pointerFlags); /* pointerFlags (2 bytes) */
|
|
Stream_Read_UINT16(s, xPos); /* xPos (2 bytes) */
|
|
Stream_Read_UINT16(s, yPos); /* yPos (2 bytes) */
|
|
return IFCALLRESULT(TRUE, input->MouseEvent, input, pointerFlags, xPos, yPos);
|
|
}
|
|
|
|
static BOOL input_recv_relmouse_event(rdpInput* input, wStream* s)
|
|
{
|
|
UINT16 pointerFlags;
|
|
INT16 xDelta, yDelta;
|
|
|
|
WINPR_ASSERT(input);
|
|
WINPR_ASSERT(s);
|
|
|
|
if (!Stream_CheckAndLogRequiredLength(TAG, s, 6))
|
|
return FALSE;
|
|
|
|
Stream_Read_UINT16(s, pointerFlags); /* pointerFlags (2 bytes) */
|
|
Stream_Read_INT16(s, xDelta); /* xPos (2 bytes) */
|
|
Stream_Read_INT16(s, yDelta); /* yPos (2 bytes) */
|
|
|
|
if (!freerdp_settings_get_bool(input->context->settings, FreeRDP_HasRelativeMouseEvent))
|
|
{
|
|
WLog_ERR(TAG,
|
|
"Received relative mouse event(flags=0x%04" PRIx16 ", xPos=%" PRId16
|
|
", yPos=%" PRId16 "), but we did not announce support for that",
|
|
pointerFlags, xDelta, yDelta);
|
|
return FALSE;
|
|
}
|
|
|
|
return IFCALLRESULT(TRUE, input->RelMouseEvent, input, pointerFlags, xDelta, yDelta);
|
|
}
|
|
|
|
static BOOL input_recv_extended_mouse_event(rdpInput* input, wStream* s)
|
|
{
|
|
UINT16 pointerFlags, xPos, yPos;
|
|
|
|
WINPR_ASSERT(input);
|
|
WINPR_ASSERT(s);
|
|
|
|
if (!Stream_CheckAndLogRequiredLength(TAG, s, 6))
|
|
return FALSE;
|
|
|
|
Stream_Read_UINT16(s, pointerFlags); /* pointerFlags (2 bytes) */
|
|
Stream_Read_UINT16(s, xPos); /* xPos (2 bytes) */
|
|
Stream_Read_UINT16(s, yPos); /* yPos (2 bytes) */
|
|
|
|
if (!freerdp_settings_get_bool(input->context->settings, FreeRDP_HasExtendedMouseEvent))
|
|
{
|
|
WLog_ERR(TAG,
|
|
"Received extended mouse event(flags=0x%04" PRIx16 ", xPos=%" PRIu16
|
|
", yPos=%" PRIu16 "), but we did not announce support for that",
|
|
pointerFlags, xPos, yPos);
|
|
return FALSE;
|
|
}
|
|
|
|
return IFCALLRESULT(TRUE, input->ExtendedMouseEvent, input, pointerFlags, xPos, yPos);
|
|
}
|
|
|
|
static BOOL input_recv_event(rdpInput* input, wStream* s)
|
|
{
|
|
UINT16 messageType;
|
|
|
|
WINPR_ASSERT(input);
|
|
WINPR_ASSERT(s);
|
|
|
|
if (!Stream_CheckAndLogRequiredLength(TAG, s, 6))
|
|
return FALSE;
|
|
|
|
Stream_Seek(s, 4); /* eventTime (4 bytes), ignored by the server */
|
|
Stream_Read_UINT16(s, messageType); /* messageType (2 bytes) */
|
|
|
|
switch (messageType)
|
|
{
|
|
case INPUT_EVENT_SYNC:
|
|
if (!input_recv_sync_event(input, s))
|
|
return FALSE;
|
|
|
|
break;
|
|
|
|
case INPUT_EVENT_SCANCODE:
|
|
if (!input_recv_keyboard_event(input, s))
|
|
return FALSE;
|
|
|
|
break;
|
|
|
|
case INPUT_EVENT_UNICODE:
|
|
if (!input_recv_unicode_keyboard_event(input, s))
|
|
return FALSE;
|
|
|
|
break;
|
|
|
|
case INPUT_EVENT_MOUSE:
|
|
if (!input_recv_mouse_event(input, s))
|
|
return FALSE;
|
|
|
|
break;
|
|
|
|
case INPUT_EVENT_MOUSEX:
|
|
if (!input_recv_extended_mouse_event(input, s))
|
|
return FALSE;
|
|
|
|
break;
|
|
|
|
case INPUT_EVENT_MOUSEREL:
|
|
if (!input_recv_relmouse_event(input, s))
|
|
return FALSE;
|
|
|
|
break;
|
|
|
|
default:
|
|
WLog_ERR(TAG, "Unknown messageType %" PRIu16 "", messageType);
|
|
/* Each input event uses 6 bytes. */
|
|
Stream_Seek(s, 6);
|
|
break;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL input_recv(rdpInput* input, wStream* s)
|
|
{
|
|
UINT16 i, numberEvents;
|
|
|
|
WINPR_ASSERT(input);
|
|
WINPR_ASSERT(s);
|
|
|
|
if (!Stream_CheckAndLogRequiredLength(TAG, s, 4))
|
|
return FALSE;
|
|
|
|
Stream_Read_UINT16(s, numberEvents); /* numberEvents (2 bytes) */
|
|
Stream_Seek(s, 2); /* pad2Octets (2 bytes) */
|
|
|
|
/* Each input event uses 6 exactly bytes. */
|
|
if (!Stream_CheckAndLogRequiredLengthOfSize(TAG, s, numberEvents, 6ull))
|
|
return FALSE;
|
|
|
|
for (i = 0; i < numberEvents; i++)
|
|
{
|
|
if (!input_recv_event(input, s))
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL input_register_client_callbacks(rdpInput* input)
|
|
{
|
|
rdpSettings* settings;
|
|
|
|
if (!input->context)
|
|
return FALSE;
|
|
|
|
settings = input->context->settings;
|
|
|
|
if (!settings)
|
|
return FALSE;
|
|
|
|
if (freerdp_settings_get_bool(settings, FreeRDP_FastPathInput))
|
|
{
|
|
input->SynchronizeEvent = input_send_fastpath_synchronize_event;
|
|
input->KeyboardEvent = input_send_fastpath_keyboard_event;
|
|
input->KeyboardPauseEvent = input_send_fastpath_keyboard_pause_event;
|
|
input->UnicodeKeyboardEvent = input_send_fastpath_unicode_keyboard_event;
|
|
input->MouseEvent = input_send_fastpath_mouse_event;
|
|
input->RelMouseEvent = input_send_fastpath_relmouse_event;
|
|
input->ExtendedMouseEvent = input_send_fastpath_extended_mouse_event;
|
|
input->FocusInEvent = input_send_fastpath_focus_in_event;
|
|
input->QoEEvent = input_send_fastpath_qoe_event;
|
|
}
|
|
else
|
|
{
|
|
input->SynchronizeEvent = input_send_synchronize_event;
|
|
input->KeyboardEvent = input_send_keyboard_event;
|
|
input->KeyboardPauseEvent = input_send_keyboard_pause_event;
|
|
input->UnicodeKeyboardEvent = input_send_unicode_keyboard_event;
|
|
input->MouseEvent = input_send_mouse_event;
|
|
input->RelMouseEvent = input_send_relmouse_event;
|
|
input->ExtendedMouseEvent = input_send_extended_mouse_event;
|
|
input->FocusInEvent = input_send_focus_in_event;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL freerdp_input_send_synchronize_event(rdpInput* input, UINT32 flags)
|
|
{
|
|
if (!input || !input->context)
|
|
return FALSE;
|
|
|
|
if (freerdp_settings_get_bool(input->context->settings, FreeRDP_SuspendInput))
|
|
return TRUE;
|
|
|
|
return IFCALLRESULT(TRUE, input->SynchronizeEvent, input, flags);
|
|
}
|
|
|
|
BOOL freerdp_input_send_keyboard_event(rdpInput* input, UINT16 flags, UINT8 code)
|
|
{
|
|
if (!input || !input->context)
|
|
return FALSE;
|
|
|
|
if (freerdp_settings_get_bool(input->context->settings, FreeRDP_SuspendInput))
|
|
return TRUE;
|
|
|
|
return IFCALLRESULT(TRUE, input->KeyboardEvent, input, flags, code);
|
|
}
|
|
|
|
BOOL freerdp_input_send_keyboard_event_ex(rdpInput* input, BOOL down, BOOL repeat,
|
|
UINT32 rdp_scancode)
|
|
{
|
|
UINT16 flags = (RDP_SCANCODE_EXTENDED(rdp_scancode) ? KBD_FLAGS_EXTENDED : 0);
|
|
if (down && repeat)
|
|
flags |= KBD_FLAGS_DOWN;
|
|
else if (!down)
|
|
flags |= KBD_FLAGS_RELEASE;
|
|
|
|
return freerdp_input_send_keyboard_event(input, flags, RDP_SCANCODE_CODE(rdp_scancode));
|
|
}
|
|
|
|
BOOL freerdp_input_send_unicode_keyboard_event(rdpInput* input, UINT16 flags, UINT16 code)
|
|
{
|
|
if (!input || !input->context)
|
|
return FALSE;
|
|
|
|
if (freerdp_settings_get_bool(input->context->settings, FreeRDP_SuspendInput))
|
|
return TRUE;
|
|
|
|
return IFCALLRESULT(TRUE, input->UnicodeKeyboardEvent, input, flags, code);
|
|
}
|
|
|
|
BOOL freerdp_input_send_mouse_event(rdpInput* input, UINT16 flags, UINT16 x, UINT16 y)
|
|
{
|
|
if (!input || !input->context)
|
|
return FALSE;
|
|
|
|
if (freerdp_settings_get_bool(input->context->settings, FreeRDP_SuspendInput))
|
|
return TRUE;
|
|
|
|
return IFCALLRESULT(TRUE, input->MouseEvent, input, flags, x, y);
|
|
}
|
|
|
|
BOOL freerdp_input_send_rel_mouse_event(rdpInput* input, UINT16 flags, INT16 xDelta, INT16 yDelta)
|
|
{
|
|
if (!input || !input->context)
|
|
return FALSE;
|
|
|
|
if (freerdp_settings_get_bool(input->context->settings, FreeRDP_SuspendInput))
|
|
return TRUE;
|
|
|
|
return IFCALLRESULT(TRUE, input->RelMouseEvent, input, flags, xDelta, yDelta);
|
|
}
|
|
|
|
BOOL freerdp_input_send_qoe_timestamp(rdpInput* input, UINT32 timestampMS)
|
|
{
|
|
if (!input || !input->context)
|
|
return FALSE;
|
|
|
|
return IFCALLRESULT(TRUE, input->QoEEvent, input, timestampMS);
|
|
}
|
|
|
|
BOOL freerdp_input_send_extended_mouse_event(rdpInput* input, UINT16 flags, UINT16 x, UINT16 y)
|
|
{
|
|
if (!input || !input->context)
|
|
return FALSE;
|
|
|
|
if (freerdp_settings_get_bool(input->context->settings, FreeRDP_SuspendInput))
|
|
return TRUE;
|
|
|
|
return IFCALLRESULT(TRUE, input->ExtendedMouseEvent, input, flags, x, y);
|
|
}
|
|
|
|
BOOL freerdp_input_send_focus_in_event(rdpInput* input, UINT16 toggleStates)
|
|
{
|
|
if (!input || !input->context)
|
|
return FALSE;
|
|
|
|
if (freerdp_settings_get_bool(input->context->settings, FreeRDP_SuspendInput))
|
|
return TRUE;
|
|
|
|
return IFCALLRESULT(TRUE, input->FocusInEvent, input, toggleStates);
|
|
}
|
|
|
|
BOOL freerdp_input_send_keyboard_pause_event(rdpInput* input)
|
|
{
|
|
if (!input || !input->context)
|
|
return FALSE;
|
|
|
|
if (freerdp_settings_get_bool(input->context->settings, FreeRDP_SuspendInput))
|
|
return TRUE;
|
|
|
|
return IFCALLRESULT(TRUE, input->KeyboardPauseEvent, input);
|
|
}
|
|
|
|
int input_process_events(rdpInput* input)
|
|
{
|
|
if (!input)
|
|
return FALSE;
|
|
|
|
return input_message_queue_process_pending_messages(input);
|
|
}
|
|
|
|
static void input_free_queued_message(void* obj)
|
|
{
|
|
wMessage* msg = (wMessage*)obj;
|
|
input_message_queue_free_message(msg);
|
|
}
|
|
|
|
rdpInput* input_new(rdpRdp* rdp)
|
|
{
|
|
const wObject cb = { NULL, NULL, NULL, input_free_queued_message, NULL };
|
|
rdp_input_internal* input = (rdp_input_internal*)calloc(1, sizeof(rdp_input_internal));
|
|
|
|
WINPR_UNUSED(rdp);
|
|
|
|
if (!input)
|
|
return NULL;
|
|
|
|
input->common.context = rdp->context;
|
|
input->queue = MessageQueue_New(&cb);
|
|
|
|
if (!input->queue)
|
|
{
|
|
free(input);
|
|
return NULL;
|
|
}
|
|
|
|
return &input->common;
|
|
}
|
|
|
|
void input_free(rdpInput* input)
|
|
{
|
|
if (input != NULL)
|
|
{
|
|
rdp_input_internal* in = input_cast(input);
|
|
|
|
MessageQueue_Free(in->queue);
|
|
free(in);
|
|
}
|
|
}
|