1 /*
2 * Copyright (c) 2021-2023 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "input_event_transmission/input_event_serialization.h"
17
18 #include "extra_data.h"
19 #ifdef OHOS_BUILD_ENABLE_SECURITY_PART
20 #include "sec_comp_enhance_kit.h"
21 #endif // OHOS_BUILD_ENABLE_SECURITY_PART
22
23 #include "devicestatus_define.h"
24
25 #undef LOG_TAG
26 #define LOG_TAG "InputEventSerialization"
27
28 namespace OHOS {
29 namespace Msdp {
30 namespace DeviceStatus {
31 namespace Cooperate {
32 namespace {
33 constexpr int32_t MAX_KEY_SIZE { 395 };
34 } // namespace
35
KeyEventToNetPacket(const std::shared_ptr<MMI::KeyEvent> key,NetPacket & pkt)36 int32_t InputEventSerialization::KeyEventToNetPacket(
37 const std::shared_ptr<MMI::KeyEvent> key, NetPacket &pkt)
38 {
39 CHKPR(key, RET_ERR);
40 if (SerializeInputEvent(key, pkt) != RET_OK) {
41 FI_HILOGE("Serialize input event failed");
42 return RET_ERR;
43 }
44 pkt << key->GetKeyCode() << key->GetKeyAction() << key->GetKeyIntention();
45 auto keys = key->GetKeyItems();
46 int32_t size = static_cast<int32_t>(keys.size());
47 if (size > MAX_KEY_SIZE) {
48 FI_HILOGE("Key exceeds the max range");
49 return RET_ERR;
50 }
51 pkt << size;
52 for (const auto &item : keys) {
53 pkt << item.GetKeyCode() << item.GetDownTime()
54 << item.GetDeviceId() << item.IsPressed() << item.GetUnicode();
55 }
56 pkt << key->GetFunctionKey(MMI::KeyEvent::NUM_LOCK_FUNCTION_KEY)
57 << key->GetFunctionKey(MMI::KeyEvent::CAPS_LOCK_FUNCTION_KEY)
58 << key->GetFunctionKey(MMI::KeyEvent::SCROLL_LOCK_FUNCTION_KEY);
59 if (pkt.ChkRWError()) {
60 FI_HILOGE("Packet write key event failed");
61 return RET_ERR;
62 }
63 return RET_OK;
64 }
65
NetPacketToKeyEvent(NetPacket & pkt,std::shared_ptr<MMI::KeyEvent> key)66 int32_t InputEventSerialization::NetPacketToKeyEvent(NetPacket &pkt, std::shared_ptr<MMI::KeyEvent> key)
67 {
68 CHKPR(key, RET_ERR);
69 if (DeserializeInputEvent(pkt, key) != RET_OK) {
70 FI_HILOGE("Deserialize input event failed");
71 return RET_ERR;
72 }
73 int32_t data = 0;
74 pkt >> data;
75 key->SetKeyCode(data);
76 pkt >> data;
77 key->SetKeyAction(data);
78 pkt >> data;
79 key->SetKeyIntention(data);
80 int32_t size = 0;
81 pkt >> size;
82 if (size > MAX_KEY_SIZE) {
83 FI_HILOGE("Key exceeds the max range");
84 return RET_ERR;
85 }
86 if (pkt.ChkRWError()) {
87 FI_HILOGE("Packet read size failed");
88 return RET_ERR;
89 }
90 bool isPressed = false;
91 for (int32_t i = 0; i < size; i++) {
92 MMI::KeyEvent::KeyItem keyItem;
93 pkt >> data;
94 keyItem.SetKeyCode(data);
95 int64_t datatime = 0;
96 pkt >> datatime;
97 keyItem.SetDownTime(datatime);
98 pkt >> data;
99 keyItem.SetDeviceId(data);
100 pkt >> isPressed;
101 if (pkt.ChkRWError()) {
102 FI_HILOGE("Packet read item isPressed failed");
103 return RET_ERR;
104 }
105 keyItem.SetPressed(isPressed);
106 uint32_t unicode;
107 pkt >> unicode;
108 keyItem.SetUnicode(unicode);
109 key->AddKeyItem(keyItem);
110 }
111 ReadFunctionKeys(pkt, key);
112 return RET_OK;
113 }
114
ReadFunctionKeys(NetPacket & pkt,std::shared_ptr<MMI::KeyEvent> key)115 void InputEventSerialization::ReadFunctionKeys(NetPacket &pkt, std::shared_ptr<MMI::KeyEvent> key)
116 {
117 CHKPV(key);
118 bool state = false;
119 pkt >> state;
120 key->SetFunctionKey(MMI::KeyEvent::NUM_LOCK_FUNCTION_KEY, state);
121 pkt >> state;
122 key->SetFunctionKey(MMI::KeyEvent::CAPS_LOCK_FUNCTION_KEY, state);
123 pkt >> state;
124 key->SetFunctionKey(MMI::KeyEvent::SCROLL_LOCK_FUNCTION_KEY, state);
125 }
126
SwitchEventToNetPacket(const std::shared_ptr<MMI::SwitchEvent> swEvent,NetPacket & pkt)127 int32_t InputEventSerialization::SwitchEventToNetPacket(
128 const std::shared_ptr<MMI::SwitchEvent> swEvent, NetPacket &pkt)
129 {
130 if (SerializeInputEvent(swEvent, pkt) != RET_OK) {
131 FI_HILOGE("Serialize input event failed");
132 return RET_ERR;
133 }
134 pkt << swEvent->GetSwitchValue() << swEvent->GetSwitchMask();
135 if (pkt.ChkRWError()) {
136 FI_HILOGE("Packet write key event failed");
137 return RET_ERR;
138 }
139 return RET_OK;
140 }
141
NetPacketToSwitchEvent(NetPacket & pkt,std::shared_ptr<MMI::SwitchEvent> swEvent)142 int32_t InputEventSerialization::NetPacketToSwitchEvent(NetPacket &pkt, std::shared_ptr<MMI::SwitchEvent> swEvent)
143 {
144 if (DeserializeInputEvent(pkt, swEvent) != RET_OK) {
145 FI_HILOGE("Deserialize input event failed");
146 return RET_ERR;
147 }
148 int32_t data = 0;
149 pkt >> data;
150 swEvent->SetSwitchValue(data);
151 pkt >> data;
152 swEvent->SetSwitchMask(data);
153 return RET_OK;
154 }
155
SerializeInputEvent(std::shared_ptr<MMI::InputEvent> event,NetPacket & pkt)156 int32_t InputEventSerialization::SerializeInputEvent(std::shared_ptr<MMI::InputEvent> event, NetPacket &pkt)
157 {
158 CHKPR(event, ERROR_NULL_POINTER);
159 pkt << event->GetEventType() << event->GetId() << event->GetActionTime()
160 << event->GetAction() << event->GetActionStartTime() << event->GetSensorInputTime() << event->GetDeviceId()
161 << event->GetTargetDisplayId() << event->GetTargetWindowId()
162 << event->GetAgentWindowId() << event->GetFlag();
163 if (pkt.ChkRWError()) {
164 FI_HILOGE("Serialize packet is failed");
165 return RET_ERR;
166 }
167 return RET_OK;
168 }
169
DeserializeInputEvent(NetPacket & pkt,std::shared_ptr<MMI::InputEvent> event)170 int32_t InputEventSerialization::DeserializeInputEvent(NetPacket &pkt, std::shared_ptr<MMI::InputEvent> event)
171 {
172 CHKPR(event, ERROR_NULL_POINTER);
173 int32_t tField = 0;
174 pkt >> tField;
175 pkt >> tField;
176 event->SetId(tField);
177 int64_t rField = 0;
178 pkt >> rField;
179 event->SetActionTime(rField);
180 pkt >> tField;
181 event->SetAction(tField);
182 pkt >> rField;
183 event->SetActionStartTime(rField);
184 uint64_t sensorTime;
185 pkt >> sensorTime;
186 event->SetSensorInputTime(sensorTime);
187 pkt >> tField;
188 event->SetDeviceId(tField);
189 pkt >> tField;
190 event->SetTargetDisplayId(tField);
191 pkt >> tField;
192 event->SetTargetWindowId(tField);
193 pkt >> tField;
194 event->SetAgentWindowId(tField);
195 uint32_t tFlag = MMI::InputEvent::EVENT_FLAG_NONE;
196 pkt >> tFlag;
197 if (pkt.ChkRWError()) {
198 FI_HILOGE("Deserialize packet is failed");
199 return RET_ERR;
200 }
201 event->AddFlag(tFlag);
202 return RET_OK;
203 }
204
SerializeBaseInfo(std::shared_ptr<MMI::PointerEvent> event,NetPacket & pkt)205 int32_t InputEventSerialization::SerializeBaseInfo(std::shared_ptr<MMI::PointerEvent> event, NetPacket &pkt)
206 {
207 int32_t pointerAction = event->GetPointerAction();
208 int32_t pointerId = event->GetPointerId();
209 int32_t sourceType = event->GetSourceType();
210 int32_t btnId = event->GetButtonId();
211 int32_t fingerCnt = event->GetFingerCount();
212 float zOrder = event->GetZOrder();
213
214 pkt << pointerAction << pointerId << sourceType << btnId << fingerCnt << zOrder;
215 if (pkt.ChkRWError()) {
216 FI_HILOGE("Failed to serialize base information of pointer event");
217 return RET_ERR;
218 }
219 return RET_OK;
220 }
221
DeserializeBaseInfo(NetPacket & pkt,std::shared_ptr<MMI::PointerEvent> event)222 int32_t InputEventSerialization::DeserializeBaseInfo(NetPacket &pkt, std::shared_ptr<MMI::PointerEvent> event)
223 {
224 int32_t pointerAction {};
225 int32_t pointerId {};
226 int32_t sourceType {};
227 int32_t btnId {};
228 int32_t fingerCnt {};
229 float zOrder {};
230
231 pkt >> pointerAction >> pointerId >> sourceType >> btnId >> fingerCnt >> zOrder;
232 if (pkt.ChkRWError()) {
233 FI_HILOGE("Failed to deserialize base information of pointer event");
234 return RET_ERR;
235 }
236 event->SetPointerAction(pointerAction);
237 event->SetPointerId(pointerId);
238 event->SetSourceType(sourceType);
239 event->SetButtonId(btnId);
240 event->SetFingerCount(fingerCnt);
241 event->SetZOrder(zOrder);
242 return RET_OK;
243 }
244
SerializeAxes(std::shared_ptr<MMI::PointerEvent> event,NetPacket & pkt)245 int32_t InputEventSerialization::SerializeAxes(std::shared_ptr<MMI::PointerEvent> event, NetPacket &pkt)
246 {
247 uint32_t axes = event->GetAxes();
248 pkt << axes;
249
250 for (int32_t i = MMI::PointerEvent::AXIS_TYPE_UNKNOWN; i < MMI::PointerEvent::AXIS_TYPE_MAX; ++i) {
251 if (event->HasAxis(static_cast<MMI::PointerEvent::AxisType>(i))) {
252 double axisValue = event->GetAxisValue(static_cast<MMI::PointerEvent::AxisType>(i));
253 pkt << axisValue;
254 }
255 }
256 if (pkt.ChkRWError()) {
257 FI_HILOGE("Failed to serialize axes");
258 return RET_ERR;
259 }
260 return RET_OK;
261 }
262
DeserializeAxes(NetPacket & pkt,std::shared_ptr<MMI::PointerEvent> event)263 int32_t InputEventSerialization::DeserializeAxes(NetPacket &pkt, std::shared_ptr<MMI::PointerEvent> event)
264 {
265 uint32_t axes {};
266 double axisValue {};
267
268 pkt >> axes;
269
270 for (int32_t i = MMI::PointerEvent::AXIS_TYPE_UNKNOWN; i < MMI::PointerEvent::AXIS_TYPE_MAX; ++i) {
271 if (MMI::PointerEvent::HasAxis(axes, static_cast<MMI::PointerEvent::AxisType>(i))) {
272 pkt >> axisValue;
273 event->SetAxisValue(static_cast<MMI::PointerEvent::AxisType>(i), axisValue);
274 }
275 }
276 if (pkt.ChkRWError()) {
277 FI_HILOGE("Failed to deserialize axes");
278 return RET_ERR;
279 }
280 return RET_OK;
281 }
282
SerializePressedButtons(std::shared_ptr<MMI::PointerEvent> event,NetPacket & pkt)283 int32_t InputEventSerialization::SerializePressedButtons(std::shared_ptr<MMI::PointerEvent> event, NetPacket &pkt)
284 {
285 std::set<int32_t> pressedBtns = event->GetPressedButtons();
286 std::set<int32_t>::size_type nPressed = pressedBtns.size();
287
288 pkt << nPressed;
289
290 for (int32_t btnId : pressedBtns) {
291 pkt << btnId;
292 }
293 if (pkt.ChkRWError()) {
294 FI_HILOGE("Failed to serialize pressed buttons");
295 return RET_ERR;
296 }
297 return RET_OK;
298 }
299
DeserializePressedButtons(NetPacket & pkt,std::shared_ptr<MMI::PointerEvent> event)300 int32_t InputEventSerialization::DeserializePressedButtons(NetPacket &pkt, std::shared_ptr<MMI::PointerEvent> event)
301 {
302 std::set<int32_t>::size_type nPressed;
303 int32_t btnId {};
304
305 pkt >> nPressed;
306
307 for (; nPressed > 0; --nPressed) {
308 pkt >> btnId;
309 event->SetButtonPressed(btnId);
310 }
311 if (pkt.ChkRWError()) {
312 FI_HILOGE("Failed to deserialize pressed buttons");
313 return RET_ERR;
314 }
315 return RET_OK;
316 }
317
SerializePointerItem(NetPacket & pkt,MMI::PointerEvent::PointerItem & item)318 int32_t InputEventSerialization::SerializePointerItem(NetPacket &pkt, MMI::PointerEvent::PointerItem &item)
319 {
320 pkt << item;
321 if (pkt.ChkRWError()) {
322 FI_HILOGE("Failed to serialize pointer item");
323 return RET_ERR;
324 }
325 return RET_OK;
326 }
327
DeserializePointerItem(NetPacket & pkt,MMI::PointerEvent::PointerItem & item)328 int32_t InputEventSerialization::DeserializePointerItem(NetPacket &pkt, MMI::PointerEvent::PointerItem &item)
329 {
330 pkt >> item;
331 if (pkt.ChkRWError()) {
332 FI_HILOGE("Failed to deserialize pointer item");
333 return RET_ERR;
334 }
335 return RET_OK;
336 }
337
SerializePointers(std::shared_ptr<MMI::PointerEvent> event,NetPacket & pkt)338 int32_t InputEventSerialization::SerializePointers(std::shared_ptr<MMI::PointerEvent> event, NetPacket &pkt)
339 {
340 std::vector<int32_t> pointerIds = event->GetPointerIds();
341 std::vector<int32_t>::size_type nPointers = pointerIds.size();
342
343 pkt << nPointers;
344
345 for (const auto &pointerId : pointerIds) {
346 MMI::PointerEvent::PointerItem item;
347
348 if (!event->GetPointerItem(pointerId, item)) {
349 FI_HILOGE("Get pointer item failed");
350 return RET_ERR;
351 }
352 if (SerializePointerItem(pkt, item) != RET_OK) {
353 FI_HILOGE("Failed to serialize one pointer item");
354 return RET_ERR;
355 }
356 }
357 if (pkt.ChkRWError()) {
358 FI_HILOGE("Failed to serialize pointers");
359 return RET_ERR;
360 }
361 return RET_OK;
362 }
363
DeserializePointers(NetPacket & pkt,std::shared_ptr<MMI::PointerEvent> event)364 int32_t InputEventSerialization::DeserializePointers(NetPacket &pkt, std::shared_ptr<MMI::PointerEvent> event)
365 {
366 std::vector<int32_t>::size_type nPointers;
367 pkt >> nPointers;
368
369 for (; nPointers > 0; --nPointers) {
370 MMI::PointerEvent::PointerItem item;
371
372 if (DeserializePointerItem(pkt, item) != RET_OK) {
373 FI_HILOGE("Failed to deserialize one pointer item");
374 return RET_ERR;
375 }
376 event->AddPointerItem(item);
377 }
378 if (pkt.ChkRWError()) {
379 FI_HILOGE("Failed to deserialize pointers");
380 return RET_ERR;
381 }
382 return RET_OK;
383 }
384
SerializePressedKeys(std::shared_ptr<MMI::PointerEvent> event,NetPacket & pkt)385 int32_t InputEventSerialization::SerializePressedKeys(std::shared_ptr<MMI::PointerEvent> event, NetPacket &pkt)
386 {
387 std::vector<int32_t> pressedKeys = event->GetPressedKeys();
388 std::vector<int32_t>::size_type nPressed = pressedKeys.size();
389
390 pkt << nPressed;
391
392 for (std::vector<int32_t>::size_type i = 0; i < nPressed; ++i) {
393 int32_t keyCode = pressedKeys[i];
394 pkt << keyCode;
395 }
396 if (pkt.ChkRWError()) {
397 FI_HILOGE("Failed to serialize pressed keys");
398 return RET_ERR;
399 }
400 return RET_OK;
401 }
402
DeserializePressedKeys(NetPacket & pkt,std::shared_ptr<MMI::PointerEvent> event)403 int32_t InputEventSerialization::DeserializePressedKeys(NetPacket &pkt, std::shared_ptr<MMI::PointerEvent> event)
404 {
405 std::vector<int32_t>::size_type nPressed {};
406 pkt >> nPressed;
407
408 std::vector<int32_t> pressedKeys;
409 int32_t keyCode {};
410
411 for (; nPressed > 0; --nPressed) {
412 pkt >> keyCode;
413 pressedKeys.push_back(keyCode);
414 }
415 if (pkt.ChkRWError()) {
416 FI_HILOGE("Failed to deserialize pressed keys");
417 return RET_ERR;
418 }
419 event->SetPressedKeys(pressedKeys);
420 return RET_OK;
421 }
422
SerializeBuffer(std::shared_ptr<MMI::PointerEvent> event,NetPacket & pkt)423 int32_t InputEventSerialization::SerializeBuffer(std::shared_ptr<MMI::PointerEvent> event, NetPacket &pkt)
424 {
425 std::vector<uint8_t> buffer = event->GetBuffer();
426 if (buffer.size() > MMI::ExtraData::MAX_BUFFER_SIZE) {
427 FI_HILOGE("buffer is oversize:%{public}zu", buffer.size());
428 return RET_ERR;
429 }
430 std::vector<uint8_t>::size_type bufSize = buffer.size();
431 pkt << bufSize;
432
433 for (std::vector<uint8_t>::size_type i = 0; i < bufSize; ++i) {
434 uint8_t item = buffer[i];
435 pkt << item;
436 }
437 if (pkt.ChkRWError()) {
438 FI_HILOGE("Failed to serialize buffer");
439 return RET_ERR;
440 }
441 return RET_OK;
442 }
443
DeserializeBuffer(NetPacket & pkt,std::shared_ptr<MMI::PointerEvent> event)444 int32_t InputEventSerialization::DeserializeBuffer(NetPacket &pkt, std::shared_ptr<MMI::PointerEvent> event)
445 {
446 std::vector<uint8_t>::size_type bufSize {};
447 pkt >> bufSize;
448
449 std::vector<uint8_t> buffer;
450 uint8_t item {};
451
452 for (; bufSize > 0; --bufSize) {
453 pkt >> item;
454 buffer.push_back(item);
455 }
456 if (pkt.ChkRWError()) {
457 FI_HILOGE("Failed to deserialize buffer");
458 return RET_ERR;
459 }
460 event->SetBuffer(buffer);
461 return RET_OK;
462 }
463
Marshalling(std::shared_ptr<MMI::PointerEvent> event,NetPacket & pkt)464 int32_t InputEventSerialization::Marshalling(std::shared_ptr<MMI::PointerEvent> event, NetPacket &pkt)
465 {
466 CALL_DEBUG_ENTER;
467 CHKPR(event, ERROR_NULL_POINTER);
468
469 if (SerializeInputEvent(event, pkt) != RET_OK) {
470 FI_HILOGE("Serialize input event failed");
471 return RET_ERR;
472 }
473 if (SerializeBaseInfo(event, pkt) != RET_OK) {
474 FI_HILOGE("Failed to serialize base information of pointer event");
475 return RET_ERR;
476 }
477 if (SerializeAxes(event, pkt) != RET_OK) {
478 FI_HILOGE("Failed to serialize axes");
479 return RET_ERR;
480 }
481 if (SerializePressedButtons(event, pkt) != RET_OK) {
482 FI_HILOGE("Failed to serialize pressed buttons");
483 return RET_ERR;
484 }
485 if (SerializePointers(event, pkt) != RET_OK) {
486 FI_HILOGE("Failed to serialize pointers");
487 return RET_ERR;
488 }
489 if (SerializePressedKeys(event, pkt) != RET_OK) {
490 FI_HILOGE("Failed to serialize pressed keys");
491 return RET_ERR;
492 }
493 if (SerializeBuffer(event, pkt) != RET_OK) {
494 FI_HILOGE("Failed to serialize buffer");
495 return RET_ERR;
496 }
497 return RET_OK;
498 }
499
Unmarshalling(NetPacket & pkt,std::shared_ptr<MMI::PointerEvent> event)500 int32_t InputEventSerialization::Unmarshalling(NetPacket &pkt, std::shared_ptr<MMI::PointerEvent> event)
501 {
502 CALL_DEBUG_ENTER;
503 CHKPR(event, ERROR_NULL_POINTER);
504
505 if (DeserializeInputEvent(pkt, event) != RET_OK) {
506 FI_HILOGE("Failed to deserialize input event");
507 return RET_ERR;
508 }
509 if (DeserializeBaseInfo(pkt, event) != RET_OK) {
510 FI_HILOGE("Failed to deserialize base information of pointer event");
511 return RET_ERR;
512 }
513 if (DeserializeAxes(pkt, event) != RET_OK) {
514 FI_HILOGE("Failed to deserialize axes");
515 return RET_ERR;
516 }
517 if (DeserializePressedButtons(pkt, event) != RET_OK) {
518 FI_HILOGE("Failed to deserialize pressed buttons");
519 return RET_ERR;
520 }
521 if (DeserializePointers(pkt, event) != RET_OK) {
522 FI_HILOGE("Failed to deserialize pointers");
523 return RET_ERR;
524 }
525 if (DeserializePressedKeys(pkt, event) != RET_OK) {
526 FI_HILOGE("Failed to deserialize pressed keys");
527 return RET_ERR;
528 }
529 if (DeserializeBuffer(pkt, event) != RET_OK) {
530 FI_HILOGE("Failed to deserialize buffer");
531 return RET_ERR;
532 }
533 return RET_OK;
534 }
535
536 #ifdef OHOS_BUILD_ENABLE_SECURITY_PART
MarshallingEnhanceData(std::shared_ptr<MMI::PointerEvent> event,NetPacket & pkt)537 int32_t InputEventSerialization::MarshallingEnhanceData(std::shared_ptr<MMI::PointerEvent> event, NetPacket &pkt)
538 {
539 CHKPR(event, ERROR_NULL_POINTER);
540 int32_t pointerId = event->GetPointerId();
541 MMI::PointerEvent::PointerItem pointerItem;
542 if (!event->GetPointerItem(pointerId, pointerItem)) {
543 FI_HILOGE("Can't find pointer item, pointer:%{public}d", pointerId);
544 return RET_ERR;
545 }
546 SecCompPointEvent *secCompPointEvent = static_cast<SecCompPointEvent*>(malloc(sizeof(SecCompPointEvent)));
547 if (secCompPointEvent == NULL) {
548 FI_HILOGE("Malloc failed");
549 return RET_ERR;
550 }
551 secCompPointEvent->touchX = pointerItem.GetDisplayX();
552 secCompPointEvent->touchY = pointerItem.GetDisplayY();
553 secCompPointEvent->timeStamp = event->GetActionTime();
554 uint32_t dataLen = sizeof(*secCompPointEvent);
555 uint8_t outBuf[MAX_HMAC_SIZE] = { 0 };
556 uint8_t* enHanceData = reinterpret_cast<uint8_t *>(&outBuf[0]);
557 uint32_t enHanceDataLen = MAX_HMAC_SIZE;
558 int32_t result = Security::SecurityComponent::SecCompEnhanceKit::GetPointerEventEnhanceData(secCompPointEvent,
559 dataLen, enHanceData, enHanceDataLen);
560 if (result != 0 || enHanceDataLen > MAX_HMAC_SIZE) {
561 pkt << 0;
562 free(secCompPointEvent);
563 secCompPointEvent = nullptr;
564 FI_HILOGD("GetPointerEventEnhanceData failed!");
565 return RET_ERR;
566 }
567 pkt << enHanceDataLen;
568 std::vector<uint8_t> realBuf;
569 for (size_t i = 0; i < enHanceDataLen; i++) {
570 realBuf.push_back(enHanceData[i]);
571 pkt << realBuf[i];
572 }
573 free(secCompPointEvent);
574 secCompPointEvent = nullptr;
575 if (pkt.ChkRWError()) {
576 FI_HILOGE("Marshalling enhanceData failed");
577 return RET_ERR;
578 }
579 return RET_OK;
580 }
581
UnmarshallingEnhanceData(NetPacket & pkt,std::shared_ptr<MMI::PointerEvent> event)582 int32_t InputEventSerialization::UnmarshallingEnhanceData(NetPacket &pkt, std::shared_ptr<MMI::PointerEvent> event)
583 {
584 uint32_t enHanceDataLen;
585 pkt >> enHanceDataLen;
586 if (enHanceDataLen == 0) {
587 return RET_OK;
588 }
589 uint8_t enhanceDataBuf[enHanceDataLen];
590 std::vector<uint8_t> enhanceData;
591 for (size_t i = 0; i < enHanceDataLen; i++) {
592 pkt >> enhanceDataBuf[i];
593 enhanceData.push_back(enhanceDataBuf[i]);
594 }
595 if (pkt.ChkRWError()) {
596 FI_HILOGE("UnmarshallingEnhanceData pointer event failed");
597 return RET_ERR;
598 }
599 event->SetEnhanceData(enhanceData);
600 return RET_OK;
601 }
602
603 struct keyEventEnhanceData {
604 int64_t timestamp;
605 int32_t keyCode;
606 };
607
MarshallingEnhanceData(std::shared_ptr<MMI::KeyEvent> event,NetPacket & pkt)608 int32_t InputEventSerialization::MarshallingEnhanceData(std::shared_ptr<MMI::KeyEvent> event, NetPacket &pkt)
609 {
610 CHKPR(event, ERROR_NULL_POINTER);
611 struct keyEventEnhanceData secCompKeyEvent;
612 secCompKeyEvent.timestamp = event->GetActionTime();
613 secCompKeyEvent.keyCode = event->GetKeyCode();
614 uint32_t dataLen = sizeof(secCompKeyEvent);
615 uint8_t outBuf[MAX_HMAC_SIZE] = { 0 };
616 uint8_t* enHanceData = reinterpret_cast<uint8_t *>(&outBuf[0]);
617 uint32_t enHanceDataLen = MAX_HMAC_SIZE;
618 int32_t result = Security::SecurityComponent::SecCompEnhanceKit::GetPointerEventEnhanceData(&secCompKeyEvent,
619 dataLen, enHanceData, enHanceDataLen);
620 if (result != 0 || enHanceDataLen > MAX_HMAC_SIZE) {
621 pkt << 0;
622 FI_HILOGD("GetKeyEventEnhanceData failed!");
623 return RET_ERR;
624 }
625 pkt << enHanceDataLen;
626 std::vector<uint8_t> realBuf;
627 for (size_t i = 0; i < enHanceDataLen; i++) {
628 realBuf.push_back(enHanceData[i]);
629 pkt << realBuf[i];
630 }
631 if (pkt.ChkRWError()) {
632 FI_HILOGE("Marshalling enhanceData failed");
633 return RET_ERR;
634 }
635 return RET_OK;
636 }
637
UnmarshallingEnhanceData(NetPacket & pkt,std::shared_ptr<MMI::KeyEvent> event)638 int32_t InputEventSerialization::UnmarshallingEnhanceData(NetPacket &pkt, std::shared_ptr<MMI::KeyEvent> event)
639 {
640 uint32_t enHanceDataLen;
641 pkt >> enHanceDataLen;
642 if (enHanceDataLen == 0 || enHanceDataLen > MAX_HMAC_SIZE) {
643 return RET_OK;
644 }
645 uint8_t enhanceDataBuf[enHanceDataLen];
646 std::vector<uint8_t> enhanceData;
647 for (size_t i = 0; i < enHanceDataLen; i++) {
648 pkt >> enhanceDataBuf[i];
649 enhanceData.push_back(enhanceDataBuf[i]);
650 }
651 if (pkt.ChkRWError()) {
652 FI_HILOGE("UnmarshallingEnhanceData key event failed");
653 return RET_ERR;
654 }
655 event->SetEnhanceData(enhanceData);
656 return RET_OK;
657 }
658 #endif // OHOS_BUILD_ENABLE_SECURITY_PART
659 } // namespace Cooperate
660 } // namespace DeviceStatus
661 } // namespace Msdp
662 } // namespace OHOS
663