1 /*
2  *    Copyright (c) 2016-2017, The OpenThread Authors.
3  *    All rights reserved.
4  *
5  *    Redistribution and use in source and binary forms, with or without
6  *    modification, are permitted provided that the following conditions are met:
7  *    1. Redistributions of source code must retain the above copyright
8  *       notice, this list of conditions and the following disclaimer.
9  *    2. Redistributions in binary form must reproduce the above copyright
10  *       notice, this list of conditions and the following disclaimer in the
11  *       documentation and/or other materials provided with the distribution.
12  *    3. Neither the name of the copyright holder nor the
13  *       names of its contributors may be used to endorse or promote products
14  *       derived from this software without specific prior written permission.
15  *
16  *    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
17  *    ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18  *    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19  *    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
20  *    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21  *    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22  *    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23  *    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24  *    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25  *    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26  */
27 
28 /**
29  * @file
30  *   This file implements general thread device required Spinel interface to the OpenThread stack.
31  */
32 
33 #include "ncp_base.hpp"
34 
35 #include <stdarg.h>
36 #include <stdlib.h>
37 
38 #include <openthread/diag.h>
39 #include <openthread/icmp6.h>
40 #include <openthread/link.h>
41 #include <openthread/logging.h>
42 #include <openthread/ncp.h>
43 #include <openthread/network_time.h>
44 #include <openthread/platform/misc.h>
45 #include <openthread/platform/radio.h>
46 
47 #include "common/code_utils.hpp"
48 #include "common/debug.hpp"
49 #include "radio/radio.hpp"
50 
51 namespace ot {
52 namespace Ncp {
53 
54 // ----------------------------------------------------------------------------
55 // MARK: Utility Functions
56 // ----------------------------------------------------------------------------
57 
InstanceToIid(Instance * aInstance)58 uint8_t NcpBase::InstanceToIid(Instance *aInstance)
59 {
60     uint8_t index = 0;
61 
62     OT_UNUSED_VARIABLE(aInstance);
63 
64 #if OPENTHREAD_CONFIG_MULTIPAN_RCP_ENABLE && OPENTHREAD_RADIO
65     index = SPINEL_HEADER_GET_IID(SPINEL_HEADER_IID_BROADCAST); // use broadcast if no match
66 
67     for (int i = 0; i < kSpinelInterfaceCount; i++)
68     {
69         if (aInstance == mInstances[i])
70         {
71             index = i;
72             break;
73         }
74     }
75 #endif // OPENTHREAD_CONFIG_MULTIPAN_RCP_ENABLE  && OPENTHREAD_RADIO
76 
77     return index;
78 }
79 
IidToInstance(uint8_t aIid)80 Instance *NcpBase::IidToInstance(uint8_t aIid)
81 {
82     Instance *instance;
83     OT_ASSERT(aIid < kSpinelInterfaceCount);
84 
85 #if OPENTHREAD_CONFIG_MULTIPAN_RCP_ENABLE && OPENTHREAD_RADIO
86     instance = mInstances[aIid];
87 #else
88     OT_UNUSED_VARIABLE(aIid);
89     instance = mInstance;
90 #endif // OPENTHREAD_CONFIG_MULTIPAN_RCP_ENABLE  && OPENTHREAD_RADIO
91 
92     return instance;
93 }
94 
95 #if OPENTHREAD_RADIO || OPENTHREAD_CONFIG_LINK_RAW_ENABLE
HasOnly1BitSet(uint32_t aValue)96 static bool HasOnly1BitSet(uint32_t aValue) { return aValue != 0 && ((aValue & (aValue - 1)) == 0); }
97 
IndexOfMSB(uint32_t aValue)98 static uint8_t IndexOfMSB(uint32_t aValue)
99 {
100     uint8_t index = 0;
101 
102     while (aValue >>= 1)
103     {
104         index++;
105     }
106 
107     return index;
108 }
109 #endif // OPENTHREAD_RADIO || OPENTHREAD_CONFIG_LINK_RAW_ENABLE
110 
ThreadErrorToSpinelStatus(otError aError)111 spinel_status_t NcpBase::ThreadErrorToSpinelStatus(otError aError)
112 {
113     spinel_status_t ret;
114 
115     switch (aError)
116     {
117     case OT_ERROR_NONE:
118         ret = SPINEL_STATUS_OK;
119         break;
120 
121     case OT_ERROR_FAILED:
122         ret = SPINEL_STATUS_FAILURE;
123         break;
124 
125     case OT_ERROR_DROP:
126         ret = SPINEL_STATUS_DROPPED;
127         break;
128 
129     case OT_ERROR_NO_BUFS:
130         ret = SPINEL_STATUS_NOMEM;
131         break;
132 
133     case OT_ERROR_BUSY:
134         ret = SPINEL_STATUS_BUSY;
135         break;
136 
137     case OT_ERROR_PARSE:
138         ret = SPINEL_STATUS_PARSE_ERROR;
139         break;
140 
141     case OT_ERROR_INVALID_ARGS:
142         ret = SPINEL_STATUS_INVALID_ARGUMENT;
143         break;
144 
145     case OT_ERROR_NOT_IMPLEMENTED:
146         ret = SPINEL_STATUS_UNIMPLEMENTED;
147         break;
148 
149     case OT_ERROR_INVALID_STATE:
150         ret = SPINEL_STATUS_INVALID_STATE;
151         break;
152 
153     case OT_ERROR_NO_ACK:
154         ret = SPINEL_STATUS_NO_ACK;
155         break;
156 
157     case OT_ERROR_CHANNEL_ACCESS_FAILURE:
158         ret = SPINEL_STATUS_CCA_FAILURE;
159         break;
160 
161     case OT_ERROR_ALREADY:
162         ret = SPINEL_STATUS_ALREADY;
163         break;
164 
165     case OT_ERROR_NOT_FOUND:
166         ret = SPINEL_STATUS_ITEM_NOT_FOUND;
167         break;
168 
169     case OT_ERROR_UNKNOWN_NEIGHBOR:
170         ret = SPINEL_STATUS_UNKNOWN_NEIGHBOR;
171         break;
172 
173     case OT_ERROR_NOT_CAPABLE:
174         ret = SPINEL_STATUS_NOT_CAPABLE;
175         break;
176 
177     case OT_ERROR_RESPONSE_TIMEOUT:
178         ret = SPINEL_STATUS_RESPONSE_TIMEOUT;
179         break;
180 
181     default:
182         // Unknown error code. Wrap it as a Spinel status and return that.
183         ret = static_cast<spinel_status_t>(SPINEL_STATUS_STACK_NATIVE__BEGIN + static_cast<uint32_t>(aError));
184         break;
185     }
186 
187     return ret;
188 }
189 
ResetReasonToSpinelStatus(otPlatResetReason aReason)190 static spinel_status_t ResetReasonToSpinelStatus(otPlatResetReason aReason)
191 {
192     spinel_status_t ret;
193 
194     switch (aReason)
195     {
196     case OT_PLAT_RESET_REASON_POWER_ON:
197         ret = SPINEL_STATUS_RESET_POWER_ON;
198         break;
199 
200     case OT_PLAT_RESET_REASON_EXTERNAL:
201         ret = SPINEL_STATUS_RESET_EXTERNAL;
202         break;
203 
204     case OT_PLAT_RESET_REASON_SOFTWARE:
205         ret = SPINEL_STATUS_RESET_SOFTWARE;
206         break;
207 
208     case OT_PLAT_RESET_REASON_FAULT:
209         ret = SPINEL_STATUS_RESET_FAULT;
210         break;
211 
212     case OT_PLAT_RESET_REASON_CRASH:
213         ret = SPINEL_STATUS_RESET_CRASH;
214         break;
215 
216     case OT_PLAT_RESET_REASON_ASSERT:
217         ret = SPINEL_STATUS_RESET_ASSERT;
218         break;
219 
220     case OT_PLAT_RESET_REASON_WATCHDOG:
221         ret = SPINEL_STATUS_RESET_WATCHDOG;
222         break;
223 
224     case OT_PLAT_RESET_REASON_OTHER:
225         ret = SPINEL_STATUS_RESET_OTHER;
226         break;
227 
228     default:
229         ret = SPINEL_STATUS_RESET_UNKNOWN;
230         break;
231     }
232 
233     return ret;
234 }
235 
236 // ----------------------------------------------------------------------------
237 // MARK: Class Boilerplate
238 // ----------------------------------------------------------------------------
239 
240 NcpBase *NcpBase::sNcpInstance = nullptr;
241 
242 #if OPENTHREAD_CONFIG_MULTIPAN_RCP_ENABLE && OPENTHREAD_RADIO
NcpBase(Instance ** aInstances,uint8_t aCount)243 NcpBase::NcpBase(Instance **aInstances, uint8_t aCount)
244     : NcpBase(aInstances[0])
245 {
246     OT_ASSERT(aCount > 0);
247     OT_ASSERT(aCount < SPINEL_HEADER_IID_MAX); // One IID reserved for broadcast
248 
249     uint8_t skipped = 0;
250 
251     for (int i = 0; i < aCount; i++)
252     {
253         if ((i + skipped) == SPINEL_HEADER_GET_IID(SPINEL_HEADER_IID_BROADCAST))
254         {
255             mInstances[i + skipped] = nullptr;
256             skipped++;
257         }
258 
259         OT_ASSERT(i + skipped <= SPINEL_HEADER_IID_MAX);
260         mInstances[i + skipped] = aInstances[i];
261     }
262 }
263 #endif // OPENTHREAD_CONFIG_MULTIPAN_RCP_ENABLE  && OPENTHREAD_RADIO
264 
NcpBase(Instance * aInstance)265 NcpBase::NcpBase(Instance *aInstance)
266     : mInstance(aInstance)
267     , mTxFrameBuffer(mTxBuffer, sizeof(mTxBuffer))
268     , mEncoder(mTxFrameBuffer)
269     , mHostPowerStateInProgress(false)
270     , mLastStatus(SPINEL_STATUS_OK)
271     , mScanChannelMask(Radio::kSupportedChannels)
272     , mScanPeriod(200)
273     , mDiscoveryScanJoinerFlag(false)
274     , mDiscoveryScanEnableFiltering(false)
275     , mDiscoveryScanPanId(0xffff)
276     , mUpdateChangedPropsTask(*aInstance, NcpBase::UpdateChangedProps)
277     , mThreadChangedFlags(0)
278     , mHostPowerState(SPINEL_HOST_POWER_STATE_ONLINE)
279     , mHostPowerReplyFrameTag(Spinel::Buffer::kInvalidTag)
280     , mHostPowerStateHeader(0)
281 #if OPENTHREAD_CONFIG_NCP_ENABLE_PEEK_POKE
282     , mAllowPeekDelegate(nullptr)
283     , mAllowPokeDelegate(nullptr)
284 #endif
285     , mResponseQueueHead(0)
286     , mResponseQueueTail(0)
287     , mAllowLocalNetworkDataChange(false)
288     , mRequireJoinExistingNetwork(false)
289     , mPcapEnabled(false)
290     , mDisableStreamWrite(false)
291     , mShouldEmitChildTableUpdate(false)
292 #if OPENTHREAD_CONFIG_TMF_NETDATA_SERVICE_ENABLE
293     , mAllowLocalServerDataChange(false)
294 #endif
295 #if OPENTHREAD_FTD
296     , mPreferredRouteId(0)
297 #endif
298     , mCurCommandIid(0)
299 #if OPENTHREAD_MTD || OPENTHREAD_FTD
300     , mInboundSecureIpFrameCounter(0)
301     , mInboundInsecureIpFrameCounter(0)
302     , mOutboundSecureIpFrameCounter(0)
303     , mOutboundInsecureIpFrameCounter(0)
304     , mDroppedOutboundIpFrameCounter(0)
305     , mDroppedInboundIpFrameCounter(0)
306 #if OPENTHREAD_CONFIG_SRP_CLIENT_ENABLE
307     , mSrpClientCallbackEnabled(false)
308 #endif
309 #endif // OPENTHREAD_MTD || OPENTHREAD_FTD
310     , mFramingErrorCounter(0)
311     , mRxSpinelFrameCounter(0)
312     , mRxSpinelOutOfOrderTidCounter(0)
313     , mTxSpinelFrameCounter(0)
314     , mDidInitialUpdates(false)
315     , mLogTimestampBase(0)
316 {
317     OT_ASSERT(mInstance != nullptr);
318 
319     sNcpInstance = this;
320 
321     mTxFrameBuffer.SetFrameRemovedCallback(&NcpBase::HandleFrameRemovedFromNcpBuffer, this);
322 
323     memset(&mResponseQueue, 0, sizeof(mResponseQueue));
324 #if OPENTHREAD_RADIO || OPENTHREAD_CONFIG_LINK_RAW_ENABLE
325     memset(mCurTransmitTID, 0, sizeof(mCurTransmitTID));
326     memset(mSrcMatchEnabled, 0, sizeof(mSrcMatchEnabled));
327     memset(mCurScanChannel, kInvalidScanChannel, sizeof(mCurScanChannel));
328 #endif
329     memset(mIsRawStreamEnabled, 0, sizeof(mIsRawStreamEnabled));
330     memset(mNextExpectedTid, 0, sizeof(mNextExpectedTid));
331 
332 #if OPENTHREAD_MTD || OPENTHREAD_FTD
333     otMessageQueueInit(&mMessageQueue);
334     IgnoreError(otSetStateChangedCallback(mInstance, &NcpBase::HandleStateChanged, this));
335     otIp6SetReceiveCallback(mInstance, &NcpBase::HandleDatagramFromStack, this);
336     otIp6SetReceiveFilterEnabled(mInstance, true);
337 #if OPENTHREAD_CONFIG_TIME_SYNC_ENABLE
338     otNetworkTimeSyncSetCallback(mInstance, &NcpBase::HandleTimeSyncUpdate, this);
339 #endif // OPENTHREAD_CONFIG_TIME_SYNC_ENABLE
340 #if OPENTHREAD_CONFIG_UDP_FORWARD_ENABLE
341     otUdpForwardSetForwarder(mInstance, &NcpBase::HandleUdpForwardStream, this);
342 #endif
343     otIcmp6SetEchoMode(mInstance, OT_ICMP6_ECHO_HANDLER_DISABLED);
344 #if OPENTHREAD_FTD
345     otThreadRegisterNeighborTableCallback(mInstance, &NcpBase::HandleNeighborTableChanged);
346 #if OPENTHREAD_CONFIG_MLE_STEERING_DATA_SET_OOB_ENABLE
347     memset(&mSteeringDataAddress, 0, sizeof(mSteeringDataAddress));
348 #endif
349 #if OPENTHREAD_CONFIG_MLE_PARENT_RESPONSE_CALLBACK_API_ENABLE
350     otThreadRegisterParentResponseCallback(mInstance, &NcpBase::HandleParentResponseInfo, static_cast<void *>(this));
351 #endif
352 #endif // OPENTHREAD_FTD
353 #if OPENTHREAD_CONFIG_SRP_CLIENT_ENABLE
354     otSrpClientSetCallback(mInstance, HandleSrpClientCallback, this);
355 #endif
356 #endif // OPENTHREAD_MTD || OPENTHREAD_FTD
357     mChangedPropsSet.AddLastStatus(SPINEL_STATUS_RESET_UNKNOWN);
358     mUpdateChangedPropsTask.Post();
359 
360 #if OPENTHREAD_ENABLE_VENDOR_EXTENSION
361     aInstance->Get<Extension::ExtensionBase>().SignalNcpInit(*this);
362 #endif
363 }
364 
GetNcpInstance(void)365 NcpBase *NcpBase::GetNcpInstance(void) { return sNcpInstance; }
366 
GetCurCommandIid(void) const367 spinel_iid_t NcpBase::GetCurCommandIid(void) const { return mCurCommandIid; }
368 
ResetCounters(void)369 void NcpBase::ResetCounters(void)
370 {
371     mFramingErrorCounter          = 0;
372     mRxSpinelFrameCounter         = 0;
373     mRxSpinelOutOfOrderTidCounter = 0;
374     mTxSpinelFrameCounter         = 0;
375 
376 #if OPENTHREAD_MTD || OPENTHREAD_FTD
377     mInboundSecureIpFrameCounter    = 0;
378     mInboundInsecureIpFrameCounter  = 0;
379     mOutboundSecureIpFrameCounter   = 0;
380     mOutboundInsecureIpFrameCounter = 0;
381     mDroppedOutboundIpFrameCounter  = 0;
382     mDroppedInboundIpFrameCounter   = 0;
383 #endif
384 }
385 
386 // ----------------------------------------------------------------------------
387 // MARK: Serial Traffic Glue
388 // ----------------------------------------------------------------------------
389 
GetLastOutboundFrameTag(void)390 Spinel::Buffer::FrameTag NcpBase::GetLastOutboundFrameTag(void) { return mTxFrameBuffer.InFrameGetLastTag(); }
391 
HandleReceive(const uint8_t * aBuf,uint16_t aBufLength)392 void NcpBase::HandleReceive(const uint8_t *aBuf, uint16_t aBufLength)
393 {
394     otError      error  = OT_ERROR_NONE;
395     uint8_t      header = 0;
396     spinel_tid_t tid    = 0;
397 
398     mDisableStreamWrite = true;
399 
400     // Initialize the decoder with the newly received spinel frame.
401     mDecoder.Init(aBuf, aBufLength);
402 
403     // Receiving any message from the host has the side effect of transitioning the host power state to online.
404     mHostPowerState           = SPINEL_HOST_POWER_STATE_ONLINE;
405     mHostPowerStateInProgress = false;
406 
407     // Skip if there is no header byte to read or this isn't a spinel frame.
408 
409     SuccessOrExit(mDecoder.ReadUint8(header));
410     VerifyOrExit((SPINEL_HEADER_FLAG & header) == SPINEL_HEADER_FLAG);
411 
412     mRxSpinelFrameCounter++;
413 
414     mCurCommandIid = SPINEL_HEADER_GET_IID(header);
415 
416 #if OPENTHREAD_CONFIG_MULTIPAN_RCP_ENABLE
417     if (mCurCommandIid > SPINEL_HEADER_IID_MAX)
418 #else
419     if (mCurCommandIid != 0)
420 #endif
421     {
422         IgnoreError(WriteLastStatusFrame(header, SPINEL_STATUS_INVALID_INTERFACE));
423         ExitNow();
424     }
425 
426     mInstance = IidToInstance(mCurCommandIid);
427     if (mInstance == nullptr)
428     {
429         IgnoreError(WriteLastStatusFrame(header, SPINEL_STATUS_INVALID_INTERFACE));
430         ExitNow();
431     }
432 
433     error = HandleCommand(header);
434 
435     if (error != OT_ERROR_NONE)
436     {
437         IgnoreError(PrepareLastStatusResponse(header, ThreadErrorToSpinelStatus(error)));
438     }
439 
440     if (!IsResponseQueueEmpty())
441     {
442         // A response may have been prepared and queued for this command,
443         // so we attempt to send/write any queued responses. Note that
444         // if the response was prepared but cannot be sent now (not
445         // enough buffer space available), it will be attempted again
446         // from `HandleFrameRemovedFromNcpBuffer()` when buffer space
447         // becomes available.
448 
449         IgnoreError(SendQueuedResponses());
450     }
451 
452     // Check for out of sequence TIDs and update `mNextExpectedTid`,
453 
454     tid = SPINEL_HEADER_GET_TID(header);
455 
456     if ((mNextExpectedTid[mCurCommandIid] != 0) && (tid != mNextExpectedTid[mCurCommandIid]))
457     {
458         mRxSpinelOutOfOrderTidCounter++;
459     }
460 
461     mNextExpectedTid[mCurCommandIid] = SPINEL_GET_NEXT_TID(tid);
462 
463 exit:
464     mDisableStreamWrite = false;
465 }
466 
HandleFrameRemovedFromNcpBuffer(void * aContext,Spinel::Buffer::FrameTag aFrameTag,Spinel::Buffer::Priority aPriority,Spinel::Buffer * aNcpBuffer)467 void NcpBase::HandleFrameRemovedFromNcpBuffer(void                    *aContext,
468                                               Spinel::Buffer::FrameTag aFrameTag,
469                                               Spinel::Buffer::Priority aPriority,
470                                               Spinel::Buffer          *aNcpBuffer)
471 {
472     OT_UNUSED_VARIABLE(aNcpBuffer);
473     OT_UNUSED_VARIABLE(aPriority);
474 
475     static_cast<NcpBase *>(aContext)->HandleFrameRemovedFromNcpBuffer(aFrameTag);
476 }
477 
HandleFrameRemovedFromNcpBuffer(Spinel::Buffer::FrameTag aFrameTag)478 void NcpBase::HandleFrameRemovedFromNcpBuffer(Spinel::Buffer::FrameTag aFrameTag)
479 {
480     if (mHostPowerStateInProgress)
481     {
482         if (aFrameTag == mHostPowerReplyFrameTag)
483         {
484             mHostPowerStateInProgress = false;
485         }
486     }
487 
488     // A frame was removed from NCP TX buffer, so more space is now available.
489     // We attempt to write/send any pending frames. Order of the checks
490     // below is important: First any queued command responses, then
491     // any queued IPv6 datagram messages, then any asynchronous property updates.
492     // If a frame still can not fit in the available buffer, we exit immediately
493     // and wait for next time this callback is invoked (when another frame is
494     // removed and more buffer space becomes available).
495 
496     SuccessOrExit(SendQueuedResponses());
497 
498 #if OPENTHREAD_ENABLE_NCP_VENDOR_HOOK
499     VendorHandleFrameRemovedFromNcpBuffer(aFrameTag);
500 #endif
501 
502     // Check if `HOST_POWER_STATE` property update is required.
503 
504     if (mHostPowerStateHeader)
505     {
506         SuccessOrExit(WritePropertyValueIsFrame(mHostPowerStateHeader, SPINEL_PROP_HOST_POWER_STATE));
507 
508         mHostPowerStateHeader = 0;
509 
510         if (mHostPowerState != SPINEL_HOST_POWER_STATE_ONLINE)
511         {
512             mHostPowerReplyFrameTag   = GetLastOutboundFrameTag();
513             mHostPowerStateInProgress = true;
514         }
515     }
516 
517 #if OPENTHREAD_MTD || OPENTHREAD_FTD
518 
519     // Send any queued IPv6 datagram message.
520 
521     SuccessOrExit(SendQueuedDatagramMessages());
522 #endif
523 
524     // Send any unsolicited event-triggered property updates.
525 
526     UpdateChangedProps();
527 
528 exit:
529     return;
530 }
531 
ShouldWakeHost(void)532 bool NcpBase::ShouldWakeHost(void)
533 {
534     return (mHostPowerState != SPINEL_HOST_POWER_STATE_ONLINE && !mHostPowerStateInProgress);
535 }
536 
ShouldDeferHostSend(void)537 bool NcpBase::ShouldDeferHostSend(void)
538 {
539     return (mHostPowerState == SPINEL_HOST_POWER_STATE_DEEP_SLEEP && !mHostPowerStateInProgress);
540 }
541 
IncrementFrameErrorCounter(void)542 void NcpBase::IncrementFrameErrorCounter(void) { mFramingErrorCounter++; }
543 
StreamWrite(int aStreamId,const uint8_t * aDataPtr,int aDataLen)544 otError NcpBase::StreamWrite(int aStreamId, const uint8_t *aDataPtr, int aDataLen)
545 {
546     otError           error  = OT_ERROR_NONE;
547     uint8_t           header = SPINEL_HEADER_FLAG | SPINEL_HEADER_TX_NOTIFICATION_IID;
548     spinel_prop_key_t streamPropKey;
549 
550     if (aStreamId == 0)
551     {
552         streamPropKey = SPINEL_PROP_STREAM_DEBUG;
553     }
554     else
555     {
556         streamPropKey = static_cast<spinel_prop_key_t>(aStreamId);
557     }
558 
559     VerifyOrExit(!mDisableStreamWrite, error = OT_ERROR_INVALID_STATE);
560     VerifyOrExit(!mChangedPropsSet.IsPropertyFiltered(streamPropKey), error = OT_ERROR_INVALID_STATE);
561 
562     // If there is a pending queued response we do not allow any new log
563     // stream writes. This is to ensure that log messages can not continue
564     // to use the NCP buffer space and block other spinel frames.
565 
566     VerifyOrExit(IsResponseQueueEmpty(), error = OT_ERROR_NO_BUFS);
567 
568     SuccessOrExit(error = mEncoder.BeginFrame(header, SPINEL_CMD_PROP_VALUE_IS, streamPropKey));
569     SuccessOrExit(error = mEncoder.WriteData(aDataPtr, static_cast<uint16_t>(aDataLen)));
570     SuccessOrExit(error = mEncoder.EndFrame());
571 
572 exit:
573 
574     if (error == OT_ERROR_NO_BUFS)
575     {
576         mChangedPropsSet.AddLastStatus(SPINEL_STATUS_NOMEM);
577         mUpdateChangedPropsTask.Post();
578     }
579 
580     return error;
581 }
582 
ConvertLogLevel(otLogLevel aLogLevel)583 uint8_t NcpBase::ConvertLogLevel(otLogLevel aLogLevel)
584 {
585     uint8_t spinelLogLevel = SPINEL_NCP_LOG_LEVEL_EMERG;
586 
587     switch (aLogLevel)
588     {
589     case OT_LOG_LEVEL_NONE:
590         spinelLogLevel = SPINEL_NCP_LOG_LEVEL_EMERG;
591         break;
592 
593     case OT_LOG_LEVEL_CRIT:
594         spinelLogLevel = SPINEL_NCP_LOG_LEVEL_CRIT;
595         break;
596 
597     case OT_LOG_LEVEL_WARN:
598         spinelLogLevel = SPINEL_NCP_LOG_LEVEL_WARN;
599         break;
600 
601     case OT_LOG_LEVEL_NOTE:
602         spinelLogLevel = SPINEL_NCP_LOG_LEVEL_NOTICE;
603         break;
604 
605     case OT_LOG_LEVEL_INFO:
606         spinelLogLevel = SPINEL_NCP_LOG_LEVEL_INFO;
607         break;
608 
609     case OT_LOG_LEVEL_DEBG:
610         spinelLogLevel = SPINEL_NCP_LOG_LEVEL_DEBUG;
611         break;
612     }
613 
614     return spinelLogLevel;
615 }
616 
ConvertLogRegion(otLogRegion aLogRegion)617 unsigned int NcpBase::ConvertLogRegion(otLogRegion aLogRegion)
618 {
619     unsigned int spinelLogRegion = SPINEL_NCP_LOG_REGION_NONE;
620 
621     switch (aLogRegion)
622     {
623     case OT_LOG_REGION_API:
624         spinelLogRegion = SPINEL_NCP_LOG_REGION_OT_API;
625         break;
626 
627     case OT_LOG_REGION_MLE:
628         spinelLogRegion = SPINEL_NCP_LOG_REGION_OT_MLE;
629         break;
630 
631     case OT_LOG_REGION_ARP:
632         spinelLogRegion = SPINEL_NCP_LOG_REGION_OT_ARP;
633         break;
634 
635     case OT_LOG_REGION_NET_DATA:
636         spinelLogRegion = SPINEL_NCP_LOG_REGION_OT_NET_DATA;
637         break;
638 
639     case OT_LOG_REGION_ICMP:
640         spinelLogRegion = SPINEL_NCP_LOG_REGION_OT_ICMP;
641         break;
642 
643     case OT_LOG_REGION_IP6:
644         spinelLogRegion = SPINEL_NCP_LOG_REGION_OT_IP6;
645         break;
646 
647     case OT_LOG_REGION_TCP:
648         spinelLogRegion = SPINEL_NCP_LOG_REGION_OT_TCP;
649         break;
650 
651     case OT_LOG_REGION_MAC:
652         spinelLogRegion = SPINEL_NCP_LOG_REGION_OT_MAC;
653         break;
654 
655     case OT_LOG_REGION_MEM:
656         spinelLogRegion = SPINEL_NCP_LOG_REGION_OT_MEM;
657         break;
658 
659     case OT_LOG_REGION_NCP:
660         spinelLogRegion = SPINEL_NCP_LOG_REGION_OT_NCP;
661         break;
662 
663     case OT_LOG_REGION_MESH_COP:
664         spinelLogRegion = SPINEL_NCP_LOG_REGION_OT_MESH_COP;
665         break;
666 
667     case OT_LOG_REGION_NET_DIAG:
668         spinelLogRegion = SPINEL_NCP_LOG_REGION_OT_NET_DIAG;
669         break;
670 
671     case OT_LOG_REGION_PLATFORM:
672         spinelLogRegion = SPINEL_NCP_LOG_REGION_OT_PLATFORM;
673         break;
674 
675     case OT_LOG_REGION_COAP:
676         spinelLogRegion = SPINEL_NCP_LOG_REGION_OT_COAP;
677         break;
678 
679     case OT_LOG_REGION_CLI:
680         spinelLogRegion = SPINEL_NCP_LOG_REGION_OT_CLI;
681         break;
682 
683     case OT_LOG_REGION_CORE:
684         spinelLogRegion = SPINEL_NCP_LOG_REGION_OT_CORE;
685         break;
686 
687     case OT_LOG_REGION_UTIL:
688         spinelLogRegion = SPINEL_NCP_LOG_REGION_OT_UTIL;
689         break;
690 
691     case OT_LOG_REGION_BBR:
692         spinelLogRegion = SPINEL_NCP_LOG_REGION_OT_BBR;
693         break;
694 
695     case OT_LOG_REGION_MLR:
696         spinelLogRegion = SPINEL_NCP_LOG_REGION_OT_MLR;
697         break;
698 
699     case OT_LOG_REGION_DUA:
700         spinelLogRegion = SPINEL_NCP_LOG_REGION_OT_DUA;
701         break;
702 
703     case OT_LOG_REGION_BR:
704         spinelLogRegion = SPINEL_NCP_LOG_REGION_OT_BR;
705         break;
706 
707     case OT_LOG_REGION_SRP:
708         spinelLogRegion = SPINEL_NCP_LOG_REGION_OT_SRP;
709         break;
710 
711     case OT_LOG_REGION_DNS:
712         spinelLogRegion = SPINEL_NCP_LOG_REGION_OT_DNS;
713         break;
714     }
715 
716     return spinelLogRegion;
717 }
718 
Log(otLogLevel aLogLevel,otLogRegion aLogRegion,const char * aLogString)719 void NcpBase::Log(otLogLevel aLogLevel, otLogRegion aLogRegion, const char *aLogString)
720 {
721     otError error  = OT_ERROR_NONE;
722     uint8_t header = SPINEL_HEADER_FLAG | SPINEL_HEADER_TX_NOTIFICATION_IID;
723 
724     VerifyOrExit(!mDisableStreamWrite, error = OT_ERROR_INVALID_STATE);
725     VerifyOrExit(!mChangedPropsSet.IsPropertyFiltered(SPINEL_PROP_STREAM_LOG));
726 
727     // If there is a pending queued response we do not allow any new log
728     // stream writes. This is to ensure that log messages can not continue
729     // to use the NCP buffer space and block other spinel frames.
730 
731     VerifyOrExit(IsResponseQueueEmpty(), error = OT_ERROR_NO_BUFS);
732 
733     SuccessOrExit(error = mEncoder.BeginFrame(header, SPINEL_CMD_PROP_VALUE_IS, SPINEL_PROP_STREAM_LOG));
734     SuccessOrExit(error = mEncoder.WriteUtf8(aLogString));
735     SuccessOrExit(error = mEncoder.WriteUint8(ConvertLogLevel(aLogLevel)));
736     SuccessOrExit(error = mEncoder.WriteUintPacked(ConvertLogRegion(aLogRegion)));
737     SuccessOrExit(error = mEncoder.WriteUint64(mLogTimestampBase + otPlatAlarmMilliGetNow()));
738     SuccessOrExit(error = mEncoder.EndFrame());
739 
740 exit:
741 
742     if (error == OT_ERROR_NO_BUFS)
743     {
744         mChangedPropsSet.AddLastStatus(SPINEL_STATUS_NOMEM);
745         mUpdateChangedPropsTask.Post();
746     }
747 }
748 
749 #if OPENTHREAD_CONFIG_NCP_ENABLE_PEEK_POKE
750 
RegisterPeekPokeDelegates(otNcpDelegateAllowPeekPoke aAllowPeekDelegate,otNcpDelegateAllowPeekPoke aAllowPokeDelegate)751 void NcpBase::RegisterPeekPokeDelegates(otNcpDelegateAllowPeekPoke aAllowPeekDelegate,
752                                         otNcpDelegateAllowPeekPoke aAllowPokeDelegate)
753 {
754     mAllowPeekDelegate = aAllowPeekDelegate;
755     mAllowPokeDelegate = aAllowPokeDelegate;
756 }
757 
758 #endif // OPENTHREAD_CONFIG_NCP_ENABLE_PEEK_POKE
759 
760 // ----------------------------------------------------------------------------
761 // MARK: Spinel Response Handling
762 // ----------------------------------------------------------------------------
763 
GetWrappedResponseQueueIndex(uint8_t aPosition)764 uint8_t NcpBase::GetWrappedResponseQueueIndex(uint8_t aPosition)
765 {
766     while (aPosition >= kResponseQueueSize)
767     {
768         aPosition -= kResponseQueueSize;
769     }
770 
771     return aPosition;
772 }
773 
EnqueueResponse(uint8_t aHeader,ResponseType aType,unsigned int aPropKeyOrStatus)774 otError NcpBase::EnqueueResponse(uint8_t aHeader, ResponseType aType, unsigned int aPropKeyOrStatus)
775 {
776     otError        error = OT_ERROR_NONE;
777     spinel_iid_t   iid   = SPINEL_HEADER_GET_IID(aHeader);
778     spinel_tid_t   tid   = SPINEL_HEADER_GET_TID(aHeader);
779     ResponseEntry *entry;
780 
781     if (tid == 0)
782     {
783         // No response is required for TID zero. But we may emit a
784         // `LAST_STATUS` error status (if not filtered) for TID
785         // zero (e.g., for a dropped `STREAM_NET` set command).
786 
787         if (aType == kResponseTypeLastStatus)
788         {
789             mChangedPropsSet.AddLastStatus(static_cast<spinel_status_t>(aPropKeyOrStatus));
790         }
791 
792         ExitNow();
793     }
794 
795     if ((mResponseQueueTail - mResponseQueueHead) >= kResponseQueueSize)
796     {
797         // If there is no room a for a response, emit an unsolicited
798         // `DROPPED` error status to indicate a spinel response was
799         // dropped.
800 
801         mChangedPropsSet.AddLastStatus(SPINEL_STATUS_DROPPED);
802 
803         ExitNow(error = OT_ERROR_NO_BUFS);
804     }
805 
806     // Transaction IDs are expected to come in sequence, if however, we
807     // get an out of sequence TID, check if we already have a response
808     // queued for this TID and if so mark the old entry as deleted.
809 
810     if (tid != mNextExpectedTid[iid])
811     {
812         for (uint8_t cur = mResponseQueueHead; cur < mResponseQueueTail; cur++)
813         {
814             entry = &mResponseQueue[GetWrappedResponseQueueIndex(cur)];
815 
816             if (entry->mIsInUse && (entry->mIid == iid) && (entry->mTid == tid))
817             {
818                 // Entry is just marked here and will be removed
819                 // from `SendQueuedResponses()`.
820 
821                 entry->mIsInUse = false;
822                 break;
823             }
824         }
825     }
826 
827     // Add the new entry in the queue at tail.
828 
829     entry = &mResponseQueue[GetWrappedResponseQueueIndex(mResponseQueueTail)];
830 
831     entry->mIid             = iid;
832     entry->mTid             = tid;
833     entry->mIsInUse         = true;
834     entry->mType            = aType;
835     entry->mPropKeyOrStatus = aPropKeyOrStatus;
836 
837     mResponseQueueTail++;
838 
839 exit:
840     return error;
841 }
842 
SendQueuedResponses(void)843 otError NcpBase::SendQueuedResponses(void)
844 {
845     otError error = OT_ERROR_NONE;
846 
847     while (mResponseQueueHead != mResponseQueueTail)
848     {
849         ResponseEntry &entry = mResponseQueue[mResponseQueueHead];
850 
851         if (entry.mIsInUse)
852         {
853             uint8_t header = SPINEL_HEADER_FLAG;
854             header |= SPINEL_HEADER_IID(entry.mIid);
855             header |= static_cast<uint8_t>(entry.mTid << SPINEL_HEADER_TID_SHIFT);
856 
857             if (entry.mType == kResponseTypeLastStatus)
858             {
859                 spinel_status_t status = static_cast<spinel_status_t>(entry.mPropKeyOrStatus);
860 
861                 SuccessOrExit(error = WriteLastStatusFrame(header, status));
862             }
863             else
864             {
865                 spinel_prop_key_t propKey       = static_cast<spinel_prop_key_t>(entry.mPropKeyOrStatus);
866                 bool              isGetResponse = (entry.mType == kResponseTypeGet);
867 
868                 SuccessOrExit(error = WritePropertyValueIsFrame(header, propKey, isGetResponse));
869             }
870         }
871 
872         // Remove the response entry.
873 
874         entry.mIsInUse = false;
875 
876         mResponseQueueHead++;
877 
878         if (mResponseQueueHead == kResponseQueueSize)
879         {
880             // Only when `head` wraps, the `tail` will be wrapped as well.
881             //
882             // This ensures that `tail` is always bigger than `head` and
883             // `(tail - head)` to correctly give the number of items in
884             // the queue.
885 
886             mResponseQueueHead = 0;
887             mResponseQueueTail = GetWrappedResponseQueueIndex(mResponseQueueTail);
888         }
889     }
890 
891 exit:
892     return error;
893 }
894 
895 // ----------------------------------------------------------------------------
896 // MARK: Property/Status Changed
897 // ----------------------------------------------------------------------------
898 
UpdateChangedProps(Tasklet & aTasklet)899 void NcpBase::UpdateChangedProps(Tasklet &aTasklet)
900 {
901     OT_UNUSED_VARIABLE(aTasklet);
902     GetNcpInstance()->UpdateChangedProps();
903 }
904 
UpdateChangedProps(void)905 void NcpBase::UpdateChangedProps(void)
906 {
907     uint8_t                       numEntries;
908     spinel_prop_key_t             propKey;
909     const ChangedPropsSet::Entry *entry;
910 
911 #if OPENTHREAD_MTD || OPENTHREAD_FTD
912     ProcessThreadChangedFlags();
913 #endif
914 
915     VerifyOrExit(!mChangedPropsSet.IsEmpty());
916 
917     entry = mChangedPropsSet.GetSupportedEntries(numEntries);
918 
919     for (uint8_t index = 0; index < numEntries; index++, entry++)
920     {
921         if (!mChangedPropsSet.IsEntryChanged(index))
922         {
923             continue;
924         }
925 
926         propKey = entry->mPropKey;
927 
928         if (propKey == SPINEL_PROP_LAST_STATUS)
929         {
930             spinel_status_t status = entry->mStatus;
931 
932             if (status == SPINEL_STATUS_RESET_UNKNOWN)
933             {
934                 status = ResetReasonToSpinelStatus(otPlatGetResetReason(mInstance));
935             }
936 
937             SuccessOrExit(WriteLastStatusFrame(SPINEL_HEADER_FLAG | SPINEL_HEADER_TX_NOTIFICATION_IID, status));
938         }
939         else if (mDidInitialUpdates)
940         {
941             SuccessOrExit(WritePropertyValueIsFrame(SPINEL_HEADER_FLAG | SPINEL_HEADER_TX_NOTIFICATION_IID, propKey));
942         }
943 
944         mChangedPropsSet.RemoveEntry(index);
945         VerifyOrExit(!mChangedPropsSet.IsEmpty());
946     }
947 
948 exit:
949     mDidInitialUpdates = true;
950 }
951 
952 // ----------------------------------------------------------------------------
953 // MARK: Inbound Command Handler
954 // ----------------------------------------------------------------------------
955 
HandleCommand(uint8_t aHeader)956 otError NcpBase::HandleCommand(uint8_t aHeader)
957 {
958     otError      error = OT_ERROR_NONE;
959     unsigned int command;
960 
961     SuccessOrExit(error = mDecoder.ReadUintPacked(command));
962 
963     switch (command)
964     {
965     case SPINEL_CMD_NOOP:
966         error = CommandHandler_NOOP(aHeader);
967         break;
968 
969     case SPINEL_CMD_RESET:
970         error = CommandHandler_RESET(aHeader);
971         break;
972 
973     case SPINEL_CMD_PROP_VALUE_GET:
974     case SPINEL_CMD_PROP_VALUE_SET:
975     case SPINEL_CMD_PROP_VALUE_INSERT:
976     case SPINEL_CMD_PROP_VALUE_REMOVE:
977         error = CommandHandler_PROP_VALUE_update(aHeader, command);
978         break;
979 
980 #if OPENTHREAD_CONFIG_NCP_ENABLE_PEEK_POKE
981     case SPINEL_CMD_PEEK:
982         error = CommandHandler_PEEK(aHeader);
983         break;
984 
985     case SPINEL_CMD_POKE:
986         error = CommandHandler_POKE(aHeader);
987         break;
988 #endif
989 
990 #if OPENTHREAD_MTD || OPENTHREAD_FTD
991     case SPINEL_CMD_NET_SAVE:
992     case SPINEL_CMD_NET_RECALL:
993         error = OT_ERROR_NOT_IMPLEMENTED;
994         break;
995 
996     case SPINEL_CMD_NET_CLEAR:
997         error = CommandHandler_NET_CLEAR(aHeader);
998         break;
999 #endif // OPENTHREAD_MTD || OPENTHREAD_FTD
1000 
1001     default:
1002 
1003 #if OPENTHREAD_ENABLE_NCP_VENDOR_HOOK
1004         if (command >= SPINEL_CMD_VENDOR__BEGIN && command < SPINEL_CMD_VENDOR__END)
1005         {
1006             error = VendorCommandHandler(aHeader, command);
1007             break;
1008         }
1009 #endif
1010 
1011         error = PrepareLastStatusResponse(aHeader, SPINEL_STATUS_INVALID_COMMAND);
1012         break;
1013     }
1014 
1015 exit:
1016     return error;
1017 }
1018 
1019 // ----------------------------------------------------------------------------
1020 // MARK: Property Get/Set/Insert/Remove Commands
1021 // ----------------------------------------------------------------------------
1022 
1023 // Returns `true` and updates the `aError` on success.
HandlePropertySetForSpecialProperties(uint8_t aHeader,spinel_prop_key_t aKey,otError & aError)1024 bool NcpBase::HandlePropertySetForSpecialProperties(uint8_t aHeader, spinel_prop_key_t aKey, otError &aError)
1025 {
1026     bool didHandle = true;
1027 
1028     // Here the properties that require special treatment are handled.
1029     // These properties are expected to form/write the response from
1030     // their set handler directly.
1031 
1032     switch (aKey)
1033     {
1034     case SPINEL_PROP_HOST_POWER_STATE:
1035         ExitNow(aError = HandlePropertySet_SPINEL_PROP_HOST_POWER_STATE(aHeader));
1036 
1037 #if OPENTHREAD_CONFIG_DIAG_ENABLE
1038     case SPINEL_PROP_NEST_STREAM_MFG:
1039         ExitNow(aError = HandlePropertySet_SPINEL_PROP_NEST_STREAM_MFG(aHeader));
1040 #endif
1041 
1042 #if OPENTHREAD_FTD && OPENTHREAD_CONFIG_COMMISSIONER_ENABLE
1043     case SPINEL_PROP_MESHCOP_COMMISSIONER_GENERATE_PSKC:
1044         ExitNow(aError = HandlePropertySet_SPINEL_PROP_MESHCOP_COMMISSIONER_GENERATE_PSKC(aHeader));
1045 
1046     case SPINEL_PROP_THREAD_COMMISSIONER_ENABLED:
1047         ExitNow(aError = HandlePropertySet_SPINEL_PROP_THREAD_COMMISSIONER_ENABLED(aHeader));
1048 #endif
1049 
1050 #if OPENTHREAD_RADIO || OPENTHREAD_CONFIG_LINK_RAW_ENABLE
1051     case SPINEL_PROP_STREAM_RAW:
1052         ExitNow(aError = HandlePropertySet_SPINEL_PROP_STREAM_RAW(aHeader));
1053 #endif
1054 
1055     default:
1056         didHandle = false;
1057         break;
1058     }
1059 
1060 exit:
1061     return didHandle;
1062 }
1063 
HandleCommandPropertySet(uint8_t aHeader,spinel_prop_key_t aKey)1064 otError NcpBase::HandleCommandPropertySet(uint8_t aHeader, spinel_prop_key_t aKey)
1065 {
1066     otError         error   = OT_ERROR_NONE;
1067     PropertyHandler handler = FindSetPropertyHandler(aKey);
1068 
1069     if (handler != nullptr)
1070     {
1071         mDisableStreamWrite = false;
1072         error               = (this->*handler)();
1073         mDisableStreamWrite = true;
1074     }
1075     else
1076     {
1077         // If there is no "set" handler, check if this property is one of the
1078         // ones that require different treatment.
1079 
1080         bool didHandle = HandlePropertySetForSpecialProperties(aHeader, aKey, error);
1081 
1082         VerifyOrExit(!didHandle);
1083 
1084 #if OPENTHREAD_ENABLE_NCP_VENDOR_HOOK
1085         if (aKey >= SPINEL_PROP_VENDOR__BEGIN && aKey < SPINEL_PROP_VENDOR__END)
1086         {
1087             mDisableStreamWrite = false;
1088             error               = VendorSetPropertyHandler(aKey);
1089             mDisableStreamWrite = true;
1090 
1091             // An `OT_ERROR_NOT_FOUND` status from vendor handler indicates
1092             // that it does not support the given property key. In that
1093             // case, `didHandle` is set to `false` so a `LAST_STATUS` with
1094             // `PROP_NOT_FOUND` is emitted. Otherwise, we fall through to
1095             // prepare the response.
1096 
1097             didHandle = (error != OT_ERROR_NOT_FOUND);
1098         }
1099 #endif
1100 
1101         VerifyOrExit(didHandle, error = PrepareLastStatusResponse(aHeader, SPINEL_STATUS_PROP_NOT_FOUND));
1102     }
1103 
1104     if (error == OT_ERROR_NONE)
1105     {
1106         error = PrepareSetResponse(aHeader, aKey);
1107     }
1108     else
1109     {
1110         error = PrepareLastStatusResponse(aHeader, ThreadErrorToSpinelStatus(error));
1111     }
1112 
1113 exit:
1114     return error;
1115 }
1116 
HandleCommandPropertyInsertRemove(uint8_t aHeader,spinel_prop_key_t aKey,unsigned int aCommand)1117 otError NcpBase::HandleCommandPropertyInsertRemove(uint8_t aHeader, spinel_prop_key_t aKey, unsigned int aCommand)
1118 {
1119     otError         error           = OT_ERROR_NONE;
1120     PropertyHandler handler         = nullptr;
1121     unsigned int    responseCommand = 0;
1122     const uint8_t  *valuePtr;
1123     uint16_t        valueLen;
1124 
1125     switch (aCommand)
1126     {
1127     case SPINEL_CMD_PROP_VALUE_INSERT:
1128         handler         = FindInsertPropertyHandler(aKey);
1129         responseCommand = SPINEL_CMD_PROP_VALUE_INSERTED;
1130         break;
1131 
1132     case SPINEL_CMD_PROP_VALUE_REMOVE:
1133         handler         = FindRemovePropertyHandler(aKey);
1134         responseCommand = SPINEL_CMD_PROP_VALUE_REMOVED;
1135         break;
1136 
1137     default:
1138         OT_ASSERT(false);
1139     }
1140 
1141     VerifyOrExit(handler != nullptr, error = PrepareLastStatusResponse(aHeader, SPINEL_STATUS_PROP_NOT_FOUND));
1142 
1143     // Save current read position in the decoder. Read the entire
1144     // content as a data blob (which is used in forming the response
1145     // in case of success), then reset the read position back so
1146     // that the `PropertyHandler` method can parse the content.
1147 
1148     mDecoder.SavePosition();
1149     IgnoreError(mDecoder.ReadData(valuePtr, valueLen));
1150     IgnoreError(mDecoder.ResetToSaved());
1151 
1152     mDisableStreamWrite = false;
1153 
1154     error = (this->*handler)();
1155 
1156     mDisableStreamWrite = true;
1157 
1158     VerifyOrExit(error == OT_ERROR_NONE, error = PrepareLastStatusResponse(aHeader, ThreadErrorToSpinelStatus(error)));
1159 
1160     error = WritePropertyValueInsertedRemovedFrame(aHeader, responseCommand, aKey, valuePtr, valueLen);
1161 
1162     // If the full response cannot be written now, instead prepare
1163     // a `LAST_STATUS(STATUS_OK)` update as response.
1164 
1165     if (error != OT_ERROR_NONE)
1166     {
1167         error = PrepareLastStatusResponse(aHeader, SPINEL_STATUS_OK);
1168     }
1169 
1170 exit:
1171     return error;
1172 }
1173 
1174 // ----------------------------------------------------------------------------
1175 // MARK: Outbound Frame Methods
1176 // ----------------------------------------------------------------------------
1177 
WriteLastStatusFrame(uint8_t aHeader,spinel_status_t aLastStatus)1178 otError NcpBase::WriteLastStatusFrame(uint8_t aHeader, spinel_status_t aLastStatus)
1179 {
1180     otError error = OT_ERROR_NONE;
1181 
1182     if (SPINEL_HEADER_GET_IID(aHeader) == SPINEL_HEADER_GET_IID(SPINEL_HEADER_TX_NOTIFICATION_IID))
1183     {
1184         mLastStatus = aLastStatus;
1185     }
1186 
1187     SuccessOrExit(error = mEncoder.BeginFrame(aHeader, SPINEL_CMD_PROP_VALUE_IS, SPINEL_PROP_LAST_STATUS));
1188     SuccessOrExit(error = mEncoder.WriteUintPacked(aLastStatus));
1189     SuccessOrExit(error = mEncoder.EndFrame());
1190 
1191 exit:
1192     return error;
1193 }
1194 
WritePropertyValueIsFrame(uint8_t aHeader,spinel_prop_key_t aPropKey,bool aIsGetResponse)1195 otError NcpBase::WritePropertyValueIsFrame(uint8_t aHeader, spinel_prop_key_t aPropKey, bool aIsGetResponse)
1196 {
1197     otError         error   = OT_ERROR_NONE;
1198     PropertyHandler handler = FindGetPropertyHandler(aPropKey);
1199 
1200     if (handler != nullptr)
1201     {
1202         SuccessOrExit(error = mEncoder.BeginFrame(aHeader, SPINEL_CMD_PROP_VALUE_IS, aPropKey));
1203         SuccessOrExit(error = (this->*handler)());
1204         ExitNow(error = mEncoder.EndFrame());
1205     }
1206 
1207 #if OPENTHREAD_ENABLE_NCP_VENDOR_HOOK
1208     if (aPropKey >= SPINEL_PROP_VENDOR__BEGIN && aPropKey < SPINEL_PROP_VENDOR__END)
1209     {
1210         SuccessOrExit(error = mEncoder.BeginFrame(aHeader, SPINEL_CMD_PROP_VALUE_IS, aPropKey));
1211 
1212         error = VendorGetPropertyHandler(aPropKey);
1213 
1214         // An `OT_ERROR_NOT_FOUND` status from vendor handler indicates that
1215         // it did not support the given property key. In that case, we fall
1216         // through to prepare a `LAST_STATUS` response.
1217 
1218         if (error != OT_ERROR_NOT_FOUND)
1219         {
1220             SuccessOrExit(error);
1221             ExitNow(error = mEncoder.EndFrame());
1222         }
1223     }
1224 #endif
1225 
1226     if (aIsGetResponse)
1227     {
1228         SuccessOrExit(error = WriteLastStatusFrame(aHeader, SPINEL_STATUS_PROP_NOT_FOUND));
1229     }
1230     else
1231     {
1232         // Send a STATUS_OK for "set" response to a property that
1233         // has no corresponding get handler.
1234 
1235         SuccessOrExit(error = WriteLastStatusFrame(aHeader, SPINEL_STATUS_OK));
1236     }
1237 
1238 exit:
1239     return error;
1240 }
1241 
WritePropertyValueInsertedRemovedFrame(uint8_t aHeader,unsigned int aResponseCommand,spinel_prop_key_t aPropKey,const uint8_t * aValuePtr,uint16_t aValueLen)1242 otError NcpBase::WritePropertyValueInsertedRemovedFrame(uint8_t           aHeader,
1243                                                         unsigned int      aResponseCommand,
1244                                                         spinel_prop_key_t aPropKey,
1245                                                         const uint8_t    *aValuePtr,
1246                                                         uint16_t          aValueLen)
1247 {
1248     otError error = OT_ERROR_NONE;
1249 
1250     SuccessOrExit(error = mEncoder.BeginFrame(aHeader, aResponseCommand, aPropKey));
1251     SuccessOrExit(error = mEncoder.WriteData(aValuePtr, aValueLen));
1252     SuccessOrExit(error = mEncoder.EndFrame());
1253 
1254 exit:
1255     return error;
1256 }
1257 
1258 // ----------------------------------------------------------------------------
1259 // MARK: Individual Command Handlers
1260 // ----------------------------------------------------------------------------
1261 
CommandHandler_NOOP(uint8_t aHeader)1262 otError NcpBase::CommandHandler_NOOP(uint8_t aHeader) { return PrepareLastStatusResponse(aHeader, SPINEL_STATUS_OK); }
1263 
CommandHandler_RESET(uint8_t aHeader)1264 otError NcpBase::CommandHandler_RESET(uint8_t aHeader)
1265 {
1266     OT_UNUSED_VARIABLE(aHeader);
1267 
1268     otError error      = OT_ERROR_NONE;
1269     uint8_t reset_type = SPINEL_RESET_STACK;
1270 
1271     if (mDecoder.GetRemainingLengthInStruct() > 0)
1272     {
1273         SuccessOrAssert(error = mDecoder.ReadUint8(reset_type));
1274     }
1275 
1276 #if OPENTHREAD_RADIO
1277     if (reset_type == SPINEL_RESET_STACK)
1278     {
1279         otInstanceResetRadioStack(mInstance);
1280 
1281         mIsRawStreamEnabled[mCurCommandIid] = false;
1282         mCurTransmitTID[mCurCommandIid]     = 0;
1283         mCurScanChannel[mCurCommandIid]     = kInvalidScanChannel;
1284         mSrcMatchEnabled[mCurCommandIid]    = false;
1285 
1286         ResetCounters();
1287 
1288         SuccessOrAssert(error = WriteLastStatusFrame(SPINEL_HEADER_FLAG | SPINEL_HEADER_TX_NOTIFICATION_IID,
1289                                                      SPINEL_STATUS_RESET_POWER_ON));
1290     }
1291 #if OPENTHREAD_CONFIG_PLATFORM_BOOTLOADER_MODE_ENABLE
1292     else if (reset_type == SPINEL_RESET_BOOTLOADER)
1293     {
1294         // Signal a platform reset to bootloader mode.
1295         // If implemented, this function shouldn't return.
1296         error = otInstanceResetToBootloader(mInstance);
1297     }
1298 #endif
1299     else
1300 #endif
1301     {
1302         // Signal a platform reset. If implemented, this function
1303         // shouldn't return.
1304         otInstanceReset(mInstance);
1305 
1306 #if OPENTHREAD_MTD || OPENTHREAD_FTD
1307         // We only get to this point if the
1308         // platform doesn't support resetting.
1309         // In such a case we fake it.
1310         IgnoreError(otThreadSetEnabled(mInstance, false));
1311         IgnoreError(otIp6SetEnabled(mInstance, false));
1312 #endif
1313 
1314         sNcpInstance = nullptr;
1315     }
1316 
1317     return error;
1318 }
1319 
CommandHandler_PROP_VALUE_update(uint8_t aHeader,unsigned int aCommand)1320 otError NcpBase::CommandHandler_PROP_VALUE_update(uint8_t aHeader, unsigned int aCommand)
1321 {
1322     otError      error   = OT_ERROR_NONE;
1323     unsigned int propKey = 0;
1324 
1325     error = mDecoder.ReadUintPacked(propKey);
1326 
1327     VerifyOrExit(error == OT_ERROR_NONE, error = PrepareLastStatusResponse(aHeader, ThreadErrorToSpinelStatus(error)));
1328 
1329     switch (aCommand)
1330     {
1331     case SPINEL_CMD_PROP_VALUE_GET:
1332         error = PrepareGetResponse(aHeader, static_cast<spinel_prop_key_t>(propKey));
1333         break;
1334 
1335     case SPINEL_CMD_PROP_VALUE_SET:
1336         error = HandleCommandPropertySet(aHeader, static_cast<spinel_prop_key_t>(propKey));
1337         break;
1338 
1339     case SPINEL_CMD_PROP_VALUE_INSERT:
1340     case SPINEL_CMD_PROP_VALUE_REMOVE:
1341         error = HandleCommandPropertyInsertRemove(aHeader, static_cast<spinel_prop_key_t>(propKey), aCommand);
1342         break;
1343 
1344     default:
1345         break;
1346     }
1347 
1348 exit:
1349     return error;
1350 }
1351 
1352 #if OPENTHREAD_CONFIG_NCP_ENABLE_PEEK_POKE
1353 
CommandHandler_PEEK(uint8_t aHeader)1354 otError NcpBase::CommandHandler_PEEK(uint8_t aHeader)
1355 {
1356     otError  parseError    = OT_ERROR_NONE;
1357     otError  responseError = OT_ERROR_NONE;
1358     uint32_t address;
1359     uint16_t count;
1360 
1361     SuccessOrExit(parseError = mDecoder.ReadUint32(address));
1362     SuccessOrExit(parseError = mDecoder.ReadUint16(count));
1363 
1364     VerifyOrExit(count != 0, parseError = OT_ERROR_INVALID_ARGS);
1365 
1366     if (mAllowPeekDelegate != nullptr)
1367     {
1368         VerifyOrExit(mAllowPeekDelegate(address, count), parseError = OT_ERROR_INVALID_ARGS);
1369     }
1370 
1371     SuccessOrExit(responseError = mEncoder.BeginFrame(aHeader, SPINEL_CMD_PEEK_RET));
1372     SuccessOrExit(responseError = mEncoder.WriteUint32(address));
1373     SuccessOrExit(responseError = mEncoder.WriteUint16(count));
1374     SuccessOrExit(responseError = mEncoder.WriteData(reinterpret_cast<const uint8_t *>(address), count));
1375     SuccessOrExit(responseError = mEncoder.EndFrame());
1376 
1377 exit:
1378     if (parseError != OT_ERROR_NONE)
1379     {
1380         responseError = PrepareLastStatusResponse(aHeader, ThreadErrorToSpinelStatus(parseError));
1381     }
1382 
1383     return responseError;
1384 }
1385 
CommandHandler_POKE(uint8_t aHeader)1386 otError NcpBase::CommandHandler_POKE(uint8_t aHeader)
1387 {
1388     otError        parseError = OT_ERROR_NONE;
1389     uint32_t       address;
1390     uint16_t       count;
1391     const uint8_t *dataPtr = nullptr;
1392     uint16_t       dataLen;
1393 
1394     SuccessOrExit(parseError = mDecoder.ReadUint32(address));
1395     SuccessOrExit(parseError = mDecoder.ReadUint16(count));
1396     SuccessOrExit(parseError = mDecoder.ReadData(dataPtr, dataLen));
1397 
1398     VerifyOrExit(count != 0, parseError = OT_ERROR_INVALID_ARGS);
1399     VerifyOrExit(count <= dataLen, parseError = OT_ERROR_INVALID_ARGS);
1400 
1401     if (mAllowPokeDelegate != nullptr)
1402     {
1403         VerifyOrExit(mAllowPokeDelegate(address, count), parseError = OT_ERROR_INVALID_ARGS);
1404     }
1405 
1406     memcpy(reinterpret_cast<uint8_t *>(address), dataPtr, count);
1407 
1408 exit:
1409     return PrepareLastStatusResponse(aHeader, ThreadErrorToSpinelStatus(parseError));
1410 }
1411 
1412 #endif // OPENTHREAD_CONFIG_NCP_ENABLE_PEEK_POKE
1413 
1414 // ----------------------------------------------------------------------------
1415 // MARK: Individual Property Getters and Setters
1416 // ----------------------------------------------------------------------------
1417 
1418 #if OPENTHREAD_CONFIG_DIAG_ENABLE
1419 
HandlePropertySet_SPINEL_PROP_NEST_STREAM_MFG(uint8_t aHeader)1420 otError NcpBase::HandlePropertySet_SPINEL_PROP_NEST_STREAM_MFG(uint8_t aHeader)
1421 {
1422     const char *string = nullptr;
1423     char        output[OPENTHREAD_CONFIG_DIAG_OUTPUT_BUFFER_SIZE];
1424     otError     error = OT_ERROR_NONE;
1425 
1426     error = mDecoder.ReadUtf8(string);
1427 
1428     VerifyOrExit(error == OT_ERROR_NONE, error = WriteLastStatusFrame(aHeader, ThreadErrorToSpinelStatus(error)));
1429 
1430 #if OPENTHREAD_MTD || OPENTHREAD_FTD
1431     // TODO do not pass mfg prefix
1432     // skip mfg prefix from wpantund
1433     if (memcmp(string, "mfg ", 4) == 0)
1434     {
1435         string += 4;
1436     }
1437 #endif
1438 
1439     SuccessOrExit(error = otDiagProcessCmdLine(mInstance, string, output, sizeof(output)));
1440 
1441     // Prepare the response
1442     SuccessOrExit(error = mEncoder.BeginFrame(aHeader, SPINEL_CMD_PROP_VALUE_IS, SPINEL_PROP_NEST_STREAM_MFG));
1443     SuccessOrExit(error = mEncoder.WriteUtf8(output));
1444     SuccessOrExit(error = mEncoder.EndFrame());
1445 
1446 exit:
1447     return error;
1448 }
1449 
1450 #endif // OPENTHREAD_CONFIG_DIAG_ENABLE
1451 
HandlePropertyGet(void)1452 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_PHY_ENABLED>(void)
1453 {
1454 #if OPENTHREAD_RADIO || OPENTHREAD_CONFIG_LINK_RAW_ENABLE
1455     return mEncoder.WriteBool(otLinkRawIsEnabled(mInstance));
1456 #else
1457     return mEncoder.WriteBool(false);
1458 #endif
1459 }
1460 
HandlePropertyGet(void)1461 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_PHY_CHAN>(void)
1462 {
1463     return mEncoder.WriteUint8(otLinkGetChannel(mInstance));
1464 }
1465 
HandlePropertySet(void)1466 template <> otError NcpBase::HandlePropertySet<SPINEL_PROP_PHY_CHAN>(void)
1467 {
1468     unsigned int channel = 0;
1469     otError      error   = OT_ERROR_NONE;
1470 
1471     SuccessOrExit(error = mDecoder.ReadUintPacked(channel));
1472 
1473     error = otLinkSetChannel(mInstance, static_cast<uint8_t>(channel));
1474 
1475 #if OPENTHREAD_RADIO || OPENTHREAD_CONFIG_LINK_RAW_ENABLE
1476 
1477     SuccessOrExit(error);
1478 
1479     // Make sure we are update the receiving channel if raw link is enabled and we have raw
1480     // stream enabled already
1481     if (otLinkRawIsEnabled(mInstance) && mIsRawStreamEnabled[mCurCommandIid])
1482     {
1483         error = otLinkRawReceive(mInstance);
1484     }
1485 
1486 #endif // OPENTHREAD_RADIO || OPENTHREAD_CONFIG_LINK_RAW_ENABLE
1487 
1488 exit:
1489     return error;
1490 }
1491 
HandlePropertyGet(void)1492 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_MAC_PROMISCUOUS_MODE>(void)
1493 {
1494     bool isPromiscuous;
1495 
1496 #if OPENTHREAD_RADIO || OPENTHREAD_CONFIG_LINK_RAW_ENABLE
1497     isPromiscuous = otLinkRawGetPromiscuous(mInstance);
1498 #else
1499     isPromiscuous = otLinkIsPromiscuous(mInstance);
1500 #endif
1501 
1502     return mEncoder.WriteUint8(isPromiscuous ? SPINEL_MAC_PROMISCUOUS_MODE_FULL : SPINEL_MAC_PROMISCUOUS_MODE_OFF);
1503 }
1504 
HandlePropertySet(void)1505 template <> otError NcpBase::HandlePropertySet<SPINEL_PROP_MAC_PROMISCUOUS_MODE>(void)
1506 {
1507     uint8_t mode  = 0;
1508     otError error = OT_ERROR_NONE;
1509 
1510     SuccessOrExit(error = mDecoder.ReadUint8(mode));
1511 
1512     switch (mode)
1513     {
1514     case SPINEL_MAC_PROMISCUOUS_MODE_OFF:
1515 #if OPENTHREAD_RADIO || OPENTHREAD_CONFIG_LINK_RAW_ENABLE
1516         error = otLinkRawSetPromiscuous(mInstance, false);
1517 #else
1518         error = otLinkSetPromiscuous(mInstance, false);
1519 #endif
1520         break;
1521 
1522     case SPINEL_MAC_PROMISCUOUS_MODE_NETWORK:
1523     case SPINEL_MAC_PROMISCUOUS_MODE_FULL:
1524 #if OPENTHREAD_RADIO || OPENTHREAD_CONFIG_LINK_RAW_ENABLE
1525         error = otLinkRawSetPromiscuous(mInstance, true);
1526 #else
1527         error = otLinkSetPromiscuous(mInstance, true);
1528 #endif
1529         break;
1530 
1531     default:
1532         error = OT_ERROR_INVALID_ARGS;
1533         break;
1534     }
1535 
1536 exit:
1537     return error;
1538 }
1539 
HandlePropertySet(void)1540 template <> otError NcpBase::HandlePropertySet<SPINEL_PROP_MAC_RX_ON_WHEN_IDLE_MODE>(void)
1541 {
1542     bool    enabled;
1543     otError error = OT_ERROR_NONE;
1544 
1545     SuccessOrExit(error = mDecoder.ReadBool(enabled));
1546     otPlatRadioSetRxOnWhenIdle(mInstance, enabled);
1547 
1548 exit:
1549     return error;
1550 }
1551 
HandlePropertyGet(void)1552 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_MAC_15_4_PANID>(void)
1553 {
1554     return mEncoder.WriteUint16(otLinkGetPanId(mInstance));
1555 }
1556 
HandlePropertySet(void)1557 template <> otError NcpBase::HandlePropertySet<SPINEL_PROP_MAC_15_4_PANID>(void)
1558 {
1559     uint16_t panid;
1560     otError  error = OT_ERROR_NONE;
1561 
1562     SuccessOrExit(error = mDecoder.ReadUint16(panid));
1563 
1564     error = otLinkSetPanId(mInstance, panid);
1565 
1566 exit:
1567     return error;
1568 }
1569 
HandlePropertyGet(void)1570 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_MAC_15_4_LADDR>(void)
1571 {
1572     return mEncoder.WriteEui64(*otLinkGetExtendedAddress(mInstance));
1573 }
1574 
HandlePropertySet(void)1575 template <> otError NcpBase::HandlePropertySet<SPINEL_PROP_MAC_15_4_LADDR>(void)
1576 {
1577     const otExtAddress *extAddress;
1578     otError             error = OT_ERROR_NONE;
1579 
1580     SuccessOrExit(error = mDecoder.ReadEui64(extAddress));
1581 
1582     error = otLinkSetExtendedAddress(mInstance, extAddress);
1583 
1584 exit:
1585     return error;
1586 }
1587 
HandlePropertyGet(void)1588 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_MAC_15_4_SADDR>(void)
1589 {
1590     return mEncoder.WriteUint16(otLinkGetShortAddress(mInstance));
1591 }
1592 
HandlePropertyGet(void)1593 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_MAC_RAW_STREAM_ENABLED>(void)
1594 {
1595     return mEncoder.WriteBool(mIsRawStreamEnabled[mCurCommandIid]);
1596 }
1597 
HandlePropertySet(void)1598 template <> otError NcpBase::HandlePropertySet<SPINEL_PROP_MAC_RAW_STREAM_ENABLED>(void)
1599 {
1600     bool    enabled = false;
1601     otError error   = OT_ERROR_NONE;
1602 
1603     SuccessOrExit(error = mDecoder.ReadBool(enabled));
1604 
1605 #if OPENTHREAD_RADIO || OPENTHREAD_CONFIG_LINK_RAW_ENABLE
1606 
1607     if (otLinkRawIsEnabled(mInstance))
1608     {
1609         if (enabled)
1610         {
1611             error = otLinkRawReceive(mInstance);
1612         }
1613         else
1614         {
1615             error = otLinkRawSleep(mInstance);
1616         }
1617     }
1618 
1619 #endif // OPENTHREAD_RADIO || OPENTHREAD_CONFIG_LINK_RAW_ENABLE
1620 
1621     mIsRawStreamEnabled[mCurCommandIid] = enabled;
1622 
1623 exit:
1624     return error;
1625 }
1626 
1627 #if OPENTHREAD_CONFIG_MAC_CSL_RECEIVER_ENABLE || OPENTHREAD_CONFIG_MAC_CSL_TRANSMITTER_ENABLE
HandlePropertyGet(void)1628 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_RCP_CSL_ACCURACY>(void)
1629 {
1630     return mEncoder.WriteUint8(otPlatRadioGetCslAccuracy(mInstance));
1631 }
1632 #endif
1633 
1634 #if OPENTHREAD_CONFIG_MAC_CSL_TRANSMITTER_ENABLE
HandlePropertyGet(void)1635 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_RCP_CSL_UNCERTAINTY>(void)
1636 {
1637     return mEncoder.WriteUint8(otPlatRadioGetCslUncertainty(mInstance));
1638 }
1639 #endif
1640 
EncodeChannelMask(uint32_t aChannelMask)1641 otError NcpBase::EncodeChannelMask(uint32_t aChannelMask)
1642 {
1643     otError error = OT_ERROR_NONE;
1644 
1645     for (uint8_t i = 0; i < 32; i++)
1646     {
1647         if (0 != (aChannelMask & (1 << i)))
1648         {
1649             SuccessOrExit(error = mEncoder.WriteUint8(i));
1650         }
1651     }
1652 
1653 exit:
1654     return error;
1655 }
1656 
DecodeChannelMask(uint32_t & aChannelMask)1657 otError NcpBase::DecodeChannelMask(uint32_t &aChannelMask)
1658 {
1659     otError error = OT_ERROR_NONE;
1660     uint8_t channel;
1661 
1662     aChannelMask = 0;
1663 
1664     while (!mDecoder.IsAllReadInStruct())
1665     {
1666         SuccessOrExit(error = mDecoder.ReadUint8(channel));
1667         VerifyOrExit(channel <= 31, error = OT_ERROR_INVALID_ARGS);
1668         aChannelMask |= (1UL << channel);
1669     }
1670 
1671 exit:
1672     return error;
1673 }
1674 
HandlePropertyGet(void)1675 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_MAC_SCAN_MASK>(void)
1676 {
1677     return EncodeChannelMask(mScanChannelMask);
1678 }
1679 
HandlePropertySet(void)1680 template <> otError NcpBase::HandlePropertySet<SPINEL_PROP_MAC_SCAN_MASK>(void)
1681 {
1682     uint32_t newMask = 0;
1683     otError  error   = OT_ERROR_NONE;
1684 
1685     SuccessOrExit(error = DecodeChannelMask(newMask));
1686     mScanChannelMask = newMask;
1687 
1688 exit:
1689     return error;
1690 }
1691 
HandlePropertyGet(void)1692 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_MAC_SCAN_PERIOD>(void)
1693 {
1694     return mEncoder.WriteUint16(mScanPeriod);
1695 }
1696 
HandlePropertySet(void)1697 template <> otError NcpBase::HandlePropertySet<SPINEL_PROP_MAC_SCAN_PERIOD>(void)
1698 {
1699     return mDecoder.ReadUint16(mScanPeriod);
1700 }
1701 
HandlePropertyGet(void)1702 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_MAC_SCAN_STATE>(void)
1703 {
1704     uint8_t scanState = SPINEL_SCAN_STATE_IDLE;
1705 
1706 #if OPENTHREAD_RADIO || OPENTHREAD_CONFIG_LINK_RAW_ENABLE
1707 
1708     if (otLinkRawIsEnabled(mInstance))
1709     {
1710         scanState = (mCurScanChannel[mCurCommandIid] == kInvalidScanChannel) ? SPINEL_SCAN_STATE_IDLE
1711                                                                              : SPINEL_SCAN_STATE_ENERGY;
1712     }
1713     else
1714 
1715 #endif // OPENTHREAD_RADIO || OPENTHREAD_CONFIG_LINK_RAW_ENABLE
1716 
1717     {
1718 #if OPENTHREAD_MTD || OPENTHREAD_FTD
1719         if (otLinkIsActiveScanInProgress(mInstance))
1720         {
1721             scanState = SPINEL_SCAN_STATE_BEACON;
1722         }
1723         else if (otLinkIsEnergyScanInProgress(mInstance))
1724         {
1725             scanState = SPINEL_SCAN_STATE_ENERGY;
1726         }
1727         else if (otThreadIsDiscoverInProgress(mInstance))
1728         {
1729             scanState = SPINEL_SCAN_STATE_DISCOVER;
1730         }
1731         else
1732         {
1733             scanState = SPINEL_SCAN_STATE_IDLE;
1734         }
1735 #endif // OPENTHREAD_MTD || OPENTHREAD_FTD
1736     }
1737 
1738     return mEncoder.WriteUint8(scanState);
1739 }
1740 
HandlePropertySet(void)1741 template <> otError NcpBase::HandlePropertySet<SPINEL_PROP_MAC_SCAN_STATE>(void)
1742 {
1743     uint8_t state = 0;
1744     otError error = OT_ERROR_NONE;
1745 
1746     SuccessOrExit(error = mDecoder.ReadUint8(state));
1747 
1748     switch (state)
1749     {
1750     case SPINEL_SCAN_STATE_IDLE:
1751         error = OT_ERROR_NONE;
1752         break;
1753 
1754 #if OPENTHREAD_MTD || OPENTHREAD_FTD
1755     case SPINEL_SCAN_STATE_BEACON:
1756         error = otLinkActiveScan(mInstance, mScanChannelMask, mScanPeriod, &HandleActiveScanResult_Jump, this);
1757         SuccessOrExit(error);
1758         break;
1759 #endif // OPENTHREAD_MTD || OPENTHREAD_FTD
1760 
1761     case SPINEL_SCAN_STATE_ENERGY:
1762 #if OPENTHREAD_RADIO || OPENTHREAD_CONFIG_LINK_RAW_ENABLE
1763         if (otLinkRawIsEnabled(mInstance))
1764         {
1765             uint8_t scanChannel;
1766 
1767             // Make sure we aren't already scanning and that we have
1768             // only 1 bit set for the channel mask.
1769             VerifyOrExit(mCurScanChannel[mCurCommandIid] == kInvalidScanChannel, error = OT_ERROR_INVALID_STATE);
1770             VerifyOrExit(HasOnly1BitSet(mScanChannelMask), error = OT_ERROR_INVALID_ARGS);
1771 
1772             scanChannel                     = IndexOfMSB(mScanChannelMask);
1773             mCurScanChannel[mCurCommandIid] = static_cast<int8_t>(scanChannel);
1774 
1775             error = otLinkRawEnergyScan(mInstance, scanChannel, mScanPeriod, LinkRawEnergyScanDone);
1776         }
1777         else
1778 #endif // OPENTHREAD_RADIO || OPENTHREAD_CONFIG_LINK_RAW_ENABLE
1779         {
1780 #if OPENTHREAD_MTD || OPENTHREAD_FTD
1781             error = otLinkEnergyScan(mInstance, mScanChannelMask, mScanPeriod, &HandleEnergyScanResult_Jump, this);
1782 #endif // OPENTHREAD_MTD || OPENTHREAD_FTD
1783         }
1784 
1785         SuccessOrExit(error);
1786         break;
1787 
1788 #if OPENTHREAD_MTD || OPENTHREAD_FTD
1789     case SPINEL_SCAN_STATE_DISCOVER:
1790         error = otThreadDiscover(mInstance, mScanChannelMask, mDiscoveryScanPanId, mDiscoveryScanJoinerFlag,
1791                                  mDiscoveryScanEnableFiltering, &HandleActiveScanResult_Jump, this);
1792 
1793         SuccessOrExit(error);
1794         break;
1795 #endif // OPENTHREAD_MTD || OPENTHREAD_FTD
1796 
1797     default:
1798         error = OT_ERROR_NOT_IMPLEMENTED;
1799         break;
1800     }
1801 
1802 exit:
1803     return error;
1804 }
1805 
HandlePropertyGet(void)1806 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_UNSOL_UPDATE_FILTER>(void)
1807 {
1808     otError                       error = OT_ERROR_NONE;
1809     uint8_t                       numEntries;
1810     const ChangedPropsSet::Entry *entry;
1811 
1812     entry = mChangedPropsSet.GetSupportedEntries(numEntries);
1813 
1814     for (uint8_t index = 0; index < numEntries; index++, entry++)
1815     {
1816         if (mChangedPropsSet.IsEntryFiltered(index))
1817         {
1818             SuccessOrExit(error = mEncoder.WriteUintPacked(entry->mPropKey));
1819         }
1820     }
1821 
1822 exit:
1823     return error;
1824 }
1825 
HandlePropertySet(void)1826 template <> otError NcpBase::HandlePropertySet<SPINEL_PROP_UNSOL_UPDATE_FILTER>(void)
1827 {
1828     unsigned int propKey;
1829     otError      error = OT_ERROR_NONE;
1830 
1831     // First clear the current filter.
1832     mChangedPropsSet.ClearFilter();
1833 
1834     while (mDecoder.GetRemainingLengthInStruct() > 0)
1835     {
1836         SuccessOrExit(error = mDecoder.ReadUintPacked(propKey));
1837 
1838         IgnoreError(mChangedPropsSet.EnablePropertyFilter(static_cast<spinel_prop_key_t>(propKey), true));
1839     }
1840 
1841 exit:
1842     // If we had an error, we may have actually changed
1843     // the state of the filter, So we need to report
1844     // those incomplete changes via an asynchronous
1845     // change event.
1846 
1847     if (error != OT_ERROR_NONE)
1848     {
1849         IgnoreError(WritePropertyValueIsFrame(SPINEL_HEADER_FLAG | SPINEL_HEADER_TX_NOTIFICATION_IID,
1850                                               SPINEL_PROP_UNSOL_UPDATE_FILTER));
1851     }
1852 
1853     return error;
1854 }
1855 
HandlePropertyInsert(void)1856 template <> otError NcpBase::HandlePropertyInsert<SPINEL_PROP_UNSOL_UPDATE_FILTER>(void)
1857 {
1858     otError      error = OT_ERROR_NONE;
1859     unsigned int propKey;
1860 
1861     SuccessOrExit(error = mDecoder.ReadUintPacked(propKey));
1862 
1863     error = mChangedPropsSet.EnablePropertyFilter(static_cast<spinel_prop_key_t>(propKey), true);
1864 
1865 exit:
1866     return error;
1867 }
1868 
HandlePropertyRemove(void)1869 template <> otError NcpBase::HandlePropertyRemove<SPINEL_PROP_UNSOL_UPDATE_FILTER>(void)
1870 {
1871     otError      error = OT_ERROR_NONE;
1872     unsigned int propKey;
1873 
1874     SuccessOrExit(error = mDecoder.ReadUintPacked(propKey));
1875 
1876     error = mChangedPropsSet.EnablePropertyFilter(static_cast<spinel_prop_key_t>(propKey), false);
1877 
1878 exit:
1879     return error;
1880 }
1881 
HandlePropertyGet(void)1882 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_LAST_STATUS>(void)
1883 {
1884     return mEncoder.WriteUintPacked(mLastStatus);
1885 }
1886 
HandlePropertyGet(void)1887 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_PROTOCOL_VERSION>(void)
1888 {
1889     otError error = OT_ERROR_NONE;
1890 
1891     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_PROTOCOL_VERSION_THREAD_MAJOR));
1892     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_PROTOCOL_VERSION_THREAD_MINOR));
1893 
1894 exit:
1895     return error;
1896 }
1897 
HandlePropertyGet(void)1898 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_INTERFACE_TYPE>(void)
1899 {
1900     return mEncoder.WriteUintPacked(SPINEL_PROTOCOL_TYPE_THREAD);
1901 }
1902 
HandlePropertyGet(void)1903 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_VENDOR_ID>(void)
1904 {
1905     return mEncoder.WriteUintPacked(0); // Vendor ID. Zero for unknown.
1906 }
1907 
HandlePropertyGet(void)1908 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_CAPS>(void)
1909 {
1910     otError error = OT_ERROR_NONE;
1911 
1912     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_COUNTERS));
1913     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_UNSOL_UPDATE_FILTER));
1914 
1915 #if OPENTHREAD_CONFIG_NCP_ENABLE_MCU_POWER_STATE_CONTROL
1916     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_MCU_POWER_STATE));
1917 #endif
1918 
1919 #if OPENTHREAD_CONFIG_RADIO_2P4GHZ_OQPSK_SUPPORT
1920     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_802_15_4_2450MHZ_OQPSK));
1921 #endif
1922 
1923 #if OPENTHREAD_CONFIG_RADIO_915MHZ_OQPSK_SUPPORT
1924     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_802_15_4_915MHZ_OQPSK));
1925 #endif
1926 
1927 #if OPENTHREAD_FTD
1928     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_CONFIG_FTD));
1929 #elif OPENTHREAD_MTD
1930     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_CONFIG_MTD));
1931 #elif OPENTHREAD_RADIO
1932     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_CONFIG_RADIO));
1933 #endif
1934 
1935 #if OPENTHREAD_RADIO || OPENTHREAD_CONFIG_LINK_RAW_ENABLE
1936     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_MAC_RAW));
1937 #endif
1938 
1939 #if OPENTHREAD_RADIO
1940     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_RCP_API_VERSION));
1941     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_RCP_MIN_HOST_API_VERSION));
1942 #endif
1943 
1944 #if OPENTHREAD_CONFIG_PLATFORM_BOOTLOADER_MODE_ENABLE
1945     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_RCP_RESET_TO_BOOTLOADER));
1946 #endif
1947 
1948 #if OPENTHREAD_PLATFORM_POSIX
1949     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_POSIX));
1950 #endif
1951 
1952 #if (OPENTHREAD_CONFIG_LOG_OUTPUT == OPENTHREAD_CONFIG_LOG_OUTPUT_APP)
1953     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_OPENTHREAD_LOG_METADATA));
1954 #endif
1955 
1956 #if OPENTHREAD_MTD || OPENTHREAD_FTD
1957 
1958     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_NET_THREAD_1_1));
1959 
1960 #if (OPENTHREAD_CONFIG_THREAD_VERSION >= OT_THREAD_VERSION_1_2)
1961     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_NET_THREAD_1_2));
1962 #endif
1963 
1964     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_PCAP));
1965 
1966 #if OPENTHREAD_CONFIG_MAC_FILTER_ENABLE
1967     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_MAC_ALLOWLIST));
1968 #endif
1969 
1970 #if OPENTHREAD_CONFIG_JAM_DETECTION_ENABLE
1971     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_JAM_DETECT));
1972 #endif
1973 
1974     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_CHILD_SUPERVISION));
1975 
1976 #if OPENTHREAD_CONFIG_CHANNEL_MONITOR_ENABLE
1977     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_CHANNEL_MONITOR));
1978 #endif
1979 
1980 #if OPENTHREAD_CONFIG_CHANNEL_MANAGER_ENABLE && OPENTHREAD_FTD
1981     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_CHANNEL_MANAGER));
1982 #endif
1983 
1984 #if OPENTHREAD_CONFIG_TIME_SYNC_ENABLE
1985     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_TIME_SYNC));
1986 #endif
1987 
1988     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_ERROR_RATE_TRACKING));
1989 
1990 #if OPENTHREAD_CONFIG_MLE_STEERING_DATA_SET_OOB_ENABLE
1991     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_OOB_STEERING_DATA));
1992 #endif
1993 
1994 #if OPENTHREAD_CONFIG_IP6_SLAAC_ENABLE
1995     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_SLAAC));
1996 #endif
1997 
1998 #if OPENTHREAD_CONFIG_PLATFORM_RADIO_COEX_ENABLE
1999     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_RADIO_COEX));
2000 #endif
2001 
2002 #if OPENTHREAD_CONFIG_MAC_RETRY_SUCCESS_HISTOGRAM_ENABLE
2003     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_MAC_RETRY_HISTOGRAM));
2004 #endif
2005 
2006 #if OPENTHREAD_CONFIG_NCP_ENABLE_PEEK_POKE
2007     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_PEEK_POKE));
2008 #endif
2009 
2010 #if OPENTHREAD_CONFIG_MLE_MAX_CHILDREN > 0
2011     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_ROLE_ROUTER));
2012 #endif
2013 
2014     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_ROLE_SLEEPY));
2015 
2016 #if OPENTHREAD_FTD && OPENTHREAD_CONFIG_COMMISSIONER_ENABLE
2017     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_THREAD_COMMISSIONER));
2018 #endif
2019 
2020 #if OPENTHREAD_CONFIG_JOINER_ENABLE
2021     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_THREAD_JOINER));
2022 #endif
2023 
2024 #if OPENTHREAD_CONFIG_BORDER_ROUTER_ENABLE
2025     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_THREAD_BORDER_ROUTER));
2026 #endif
2027 
2028 #if OPENTHREAD_CONFIG_UDP_FORWARD_ENABLE
2029     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_THREAD_UDP_FORWARD));
2030 #endif
2031 
2032 #if OPENTHREAD_CONFIG_TMF_NETDATA_SERVICE_ENABLE
2033     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_THREAD_SERVICE));
2034 #endif
2035 
2036 #if OPENTHREAD_CONFIG_MAC_CSL_RECEIVER_ENABLE
2037     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_THREAD_CSL_RECEIVER));
2038 #endif
2039 
2040 #if OPENTHREAD_CONFIG_MULTI_RADIO
2041     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_MULTI_RADIO));
2042 #endif
2043 
2044 #if OPENTHREAD_CONFIG_SRP_CLIENT_ENABLE
2045     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_SRP_CLIENT));
2046 #endif
2047 
2048 #if OPENTHREAD_CONFIG_MLE_LINK_METRICS_INITIATOR_ENABLE
2049     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_THREAD_LINK_METRICS));
2050 #endif
2051 
2052 #if OPENTHREAD_CONFIG_DUA_ENABLE
2053     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_DUA));
2054 #endif
2055 
2056 #if OPENTHREAD_CONFIG_REFERENCE_DEVICE_ENABLE
2057     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_REFERENCE_DEVICE));
2058 #endif
2059 
2060 #if OPENTHREAD_FTD && OPENTHREAD_CONFIG_BACKBONE_ROUTER_ENABLE
2061     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_THREAD_BACKBONE_ROUTER));
2062 #endif
2063 
2064 #endif // OPENTHREAD_MTD || OPENTHREAD_FTD
2065 
2066 exit:
2067     return error;
2068 }
2069 
HandlePropertyGet(void)2070 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_NCP_VERSION>(void)
2071 {
2072     return mEncoder.WriteUtf8(otGetVersionString());
2073 }
2074 
HandlePropertyGet(void)2075 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_INTERFACE_COUNT>(void)
2076 {
2077     uint8_t instances = 1;
2078 #if OPENTHREAD_CONFIG_MULTIPAN_RCP_ENABLE && OPENTHREAD_RADIO
2079     instances = 0;
2080     for (uint8_t i = 0; i <= SPINEL_HEADER_IID_MAX; i++)
2081     {
2082         if (mInstances[i] != nullptr)
2083         {
2084             instances++;
2085         }
2086     }
2087 #endif // OPENTHREAD_CONFIG_MULTIPAN_RCP_ENABLE  && OPENTHREAD_RADIO
2088 
2089     return mEncoder.WriteUint8(instances);
2090 }
2091 
2092 #if OPENTHREAD_CONFIG_NCP_ENABLE_MCU_POWER_STATE_CONTROL
2093 
HandlePropertyGet(void)2094 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_MCU_POWER_STATE>(void)
2095 {
2096     spinel_mcu_power_state_t state = SPINEL_MCU_POWER_STATE_ON;
2097 
2098     switch (otPlatGetMcuPowerState(mInstance))
2099     {
2100     case OT_PLAT_MCU_POWER_STATE_ON:
2101         state = SPINEL_MCU_POWER_STATE_ON;
2102         break;
2103 
2104     case OT_PLAT_MCU_POWER_STATE_LOW_POWER:
2105         state = SPINEL_MCU_POWER_STATE_LOW_POWER;
2106         break;
2107 
2108     case OT_PLAT_MCU_POWER_STATE_OFF:
2109         state = SPINEL_MCU_POWER_STATE_OFF;
2110         break;
2111     }
2112 
2113     return mEncoder.WriteUint8(state);
2114 }
2115 
HandlePropertySet(void)2116 template <> otError NcpBase::HandlePropertySet<SPINEL_PROP_MCU_POWER_STATE>(void)
2117 {
2118     otError             error = OT_ERROR_NONE;
2119     otPlatMcuPowerState powerState;
2120     uint8_t             state;
2121 
2122     SuccessOrExit(error = mDecoder.ReadUint8(state));
2123 
2124     switch (state)
2125     {
2126     case SPINEL_MCU_POWER_STATE_ON:
2127         powerState = OT_PLAT_MCU_POWER_STATE_ON;
2128         break;
2129 
2130     case SPINEL_MCU_POWER_STATE_LOW_POWER:
2131         powerState = OT_PLAT_MCU_POWER_STATE_LOW_POWER;
2132         break;
2133 
2134     case SPINEL_MCU_POWER_STATE_OFF:
2135         powerState = OT_PLAT_MCU_POWER_STATE_OFF;
2136         break;
2137 
2138     default:
2139         ExitNow(error = OT_ERROR_INVALID_ARGS);
2140     }
2141 
2142     SuccessOrExit(error = otPlatSetMcuPowerState(mInstance, powerState));
2143 
2144 #if OPENTHREAD_FTD || OPENTHREAD_MTD
2145 
2146     // If the call `otPlatSetMcuPowerState()` was successful and the desire
2147     // state is `OFF`, ensure to disable Thread (MLE) operation (and stop
2148     // legacy) and also bring the IPv6 interface down.
2149 
2150     if (powerState == OT_PLAT_MCU_POWER_STATE_OFF)
2151     {
2152         if (otThreadGetDeviceRole(mInstance) != OT_DEVICE_ROLE_DISABLED)
2153         {
2154             IgnoreError(otThreadSetEnabled(mInstance, false));
2155         }
2156 
2157         if (otIp6IsEnabled(mInstance))
2158         {
2159             IgnoreError(otIp6SetEnabled(mInstance, false));
2160         }
2161     }
2162 #endif // #if OPENTHREAD_FTD || OPENTHREAD_MTD
2163 
2164 exit:
2165     return error;
2166 }
2167 
2168 #else // OPENTHREAD_CONFIG_NCP_ENABLE_MCU_POWER_STATE_CONTROL
2169 
HandlePropertyGet(void)2170 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_MCU_POWER_STATE>(void)
2171 {
2172     return mEncoder.WriteUint8(SPINEL_MCU_POWER_STATE_ON);
2173 }
2174 
2175 #endif // OPENTHREAD_CONFIG_NCP_ENABLE_MCU_POWER_STATE_CONTROL
2176 
HandlePropertyGet(void)2177 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_POWER_STATE>(void)
2178 {
2179     return mEncoder.WriteUint8(SPINEL_POWER_STATE_ONLINE);
2180 }
2181 
HandlePropertySet(void)2182 template <> otError NcpBase::HandlePropertySet<SPINEL_PROP_POWER_STATE>(void) { return OT_ERROR_NOT_IMPLEMENTED; }
2183 
HandlePropertyGet(void)2184 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_HWADDR>(void)
2185 {
2186     otExtAddress hwAddr;
2187 
2188     otLinkGetFactoryAssignedIeeeEui64(mInstance, &hwAddr);
2189 
2190     return mEncoder.WriteEui64(hwAddr);
2191 }
2192 
HandlePropertyGet(void)2193 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_LOCK>(void)
2194 {
2195     // TODO: Implement property lock (Needs API!)
2196     return mEncoder.OverwriteWithLastStatusError(SPINEL_STATUS_UNIMPLEMENTED);
2197 }
2198 
HandlePropertyGet(void)2199 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_HOST_POWER_STATE>(void)
2200 {
2201     return mEncoder.WriteUint8(mHostPowerState);
2202 }
2203 
2204 // Setting `HOST_POWER_STATE` is treated and implemented differently from other
2205 // handlers as it requires two special behaviors (a) the response frame for the
2206 // set operation should be tracked and only when it is delivered we can assume
2207 // that host is sleep (b) the response is critical so if there is no spinel
2208 // buffer to prepare the response, the current spinel header is saved to
2209 // prepare and send the response as soon as buffer space becomes available.
HandlePropertySet_SPINEL_PROP_HOST_POWER_STATE(uint8_t aHeader)2210 otError NcpBase::HandlePropertySet_SPINEL_PROP_HOST_POWER_STATE(uint8_t aHeader)
2211 {
2212     uint8_t powerState;
2213     otError error = OT_ERROR_NONE;
2214 
2215     error = mDecoder.ReadUint8(powerState);
2216 
2217     if (error == OT_ERROR_NONE)
2218     {
2219         switch (powerState)
2220         {
2221         case SPINEL_HOST_POWER_STATE_OFFLINE:
2222         case SPINEL_HOST_POWER_STATE_DEEP_SLEEP:
2223         case SPINEL_HOST_POWER_STATE_LOW_POWER:
2224         case SPINEL_HOST_POWER_STATE_ONLINE:
2225             // Adopt the requested power state.
2226             mHostPowerState = static_cast<spinel_host_power_state_t>(powerState);
2227             break;
2228 
2229         case SPINEL_HOST_POWER_STATE_RESERVED:
2230             // Per the specification, treat this as synonymous with SPINEL_HOST_POWER_STATE_DEEP_SLEEP.
2231             mHostPowerState = SPINEL_HOST_POWER_STATE_DEEP_SLEEP;
2232             break;
2233 
2234         default:
2235             // Per the specification, treat unrecognized values as synonymous with SPINEL_HOST_POWER_STATE_LOW_POWER.
2236             mHostPowerState = SPINEL_HOST_POWER_STATE_LOW_POWER;
2237             break;
2238         }
2239 
2240         mHostPowerStateHeader = 0;
2241 
2242         error = WritePropertyValueIsFrame(aHeader, SPINEL_PROP_HOST_POWER_STATE);
2243 
2244         if (mHostPowerState != SPINEL_HOST_POWER_STATE_ONLINE)
2245         {
2246             if (error == OT_ERROR_NONE)
2247             {
2248                 mHostPowerReplyFrameTag = GetLastOutboundFrameTag();
2249             }
2250             else
2251             {
2252                 mHostPowerReplyFrameTag = Spinel::Buffer::kInvalidTag;
2253             }
2254 
2255             mHostPowerStateInProgress = true;
2256         }
2257 
2258         if (error != OT_ERROR_NONE)
2259         {
2260             mHostPowerStateHeader = aHeader;
2261 
2262             // The reply will be queued when buffer space becomes available
2263             // in the NCP tx buffer so we return `success` to avoid sending a
2264             // NOMEM status for the same tid through `mDroppedReplyTid` list.
2265 
2266             error = OT_ERROR_NONE;
2267         }
2268     }
2269     else
2270     {
2271         error = WriteLastStatusFrame(aHeader, ThreadErrorToSpinelStatus(error));
2272     }
2273 
2274     return error;
2275 }
2276 
HandlePropertyGet(void)2277 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_UNSOL_UPDATE_LIST>(void)
2278 {
2279     otError                       error = OT_ERROR_NONE;
2280     uint8_t                       numEntries;
2281     const ChangedPropsSet::Entry *entry;
2282 
2283     entry = mChangedPropsSet.GetSupportedEntries(numEntries);
2284 
2285     for (uint8_t index = 0; index < numEntries; index++, entry++)
2286     {
2287         if (entry->mFilterable)
2288         {
2289             SuccessOrExit(error = mEncoder.WriteUintPacked(entry->mPropKey));
2290         }
2291     }
2292 
2293 exit:
2294     return error;
2295 }
2296 
HandlePropertyGet(void)2297 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_PHY_RSSI>(void)
2298 {
2299     return mEncoder.WriteInt8(otPlatRadioGetRssi(mInstance));
2300 }
2301 
HandlePropertyGet(void)2302 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_PHY_RX_SENSITIVITY>(void)
2303 {
2304     return mEncoder.WriteInt8(otPlatRadioGetReceiveSensitivity(mInstance));
2305 }
2306 
HandlePropertyGet(void)2307 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_PHY_FREQ>(void)
2308 {
2309     uint32_t      freq_khz(0);
2310     const uint8_t chan(otLinkGetChannel(mInstance));
2311 
2312     if (chan == 0)
2313     {
2314         freq_khz = 868300;
2315     }
2316     else if (chan < 11)
2317     {
2318         freq_khz = 906000 - (2000 * 1) + 2000 * (chan);
2319     }
2320     else if (chan < 26)
2321     {
2322         freq_khz = 2405000 - (5000 * 11) + 5000 * (chan);
2323     }
2324 
2325     return mEncoder.WriteUint32(freq_khz);
2326 }
2327 
HandlePropertyGet(void)2328 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_PHY_CCA_THRESHOLD>(void)
2329 {
2330     int8_t  threshold;
2331     otError error = OT_ERROR_NONE;
2332 
2333     error = otPlatRadioGetCcaEnergyDetectThreshold(mInstance, &threshold);
2334 
2335     if (error == OT_ERROR_NONE)
2336     {
2337         error = mEncoder.WriteInt8(threshold);
2338     }
2339     else
2340     {
2341         error = mEncoder.OverwriteWithLastStatusError(ThreadErrorToSpinelStatus(error));
2342     }
2343 
2344     return error;
2345 }
2346 
HandlePropertySet(void)2347 template <> otError NcpBase::HandlePropertySet<SPINEL_PROP_PHY_CCA_THRESHOLD>(void)
2348 {
2349     int8_t  threshold = 0;
2350     otError error     = OT_ERROR_NONE;
2351 
2352     SuccessOrExit(error = mDecoder.ReadInt8(threshold));
2353     error = otPlatRadioSetCcaEnergyDetectThreshold(mInstance, threshold);
2354 
2355 exit:
2356     return error;
2357 }
2358 
HandlePropertyGet(void)2359 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_PHY_TX_POWER>(void)
2360 {
2361     int8_t  power;
2362     otError error;
2363 
2364     error = otPlatRadioGetTransmitPower(mInstance, &power);
2365 
2366     if (error == OT_ERROR_NONE)
2367     {
2368         error = mEncoder.WriteInt8(power);
2369     }
2370     else
2371     {
2372         error = mEncoder.OverwriteWithLastStatusError(ThreadErrorToSpinelStatus(error));
2373     }
2374 
2375     return error;
2376 }
2377 
HandlePropertySet(void)2378 template <> otError NcpBase::HandlePropertySet<SPINEL_PROP_PHY_TX_POWER>(void)
2379 {
2380     int8_t  txPower = 0;
2381     otError error   = OT_ERROR_NONE;
2382 
2383     SuccessOrExit(error = mDecoder.ReadInt8(txPower));
2384     error = otPlatRadioSetTransmitPower(mInstance, txPower);
2385 
2386 exit:
2387     return error;
2388 }
2389 
HandlePropertyGet(void)2390 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_PHY_FEM_LNA_GAIN>(void)
2391 {
2392     int8_t  gain;
2393     otError error = OT_ERROR_NONE;
2394 
2395     error = otPlatRadioGetFemLnaGain(mInstance, &gain);
2396 
2397     if (error == OT_ERROR_NONE)
2398     {
2399         error = mEncoder.WriteInt8(gain);
2400     }
2401     else
2402     {
2403         error = mEncoder.OverwriteWithLastStatusError(ThreadErrorToSpinelStatus(error));
2404     }
2405 
2406     return error;
2407 }
2408 
HandlePropertySet(void)2409 template <> otError NcpBase::HandlePropertySet<SPINEL_PROP_PHY_FEM_LNA_GAIN>(void)
2410 {
2411     int8_t  gain  = 0;
2412     otError error = OT_ERROR_NONE;
2413 
2414     SuccessOrExit(error = mDecoder.ReadInt8(gain));
2415     error = otPlatRadioSetFemLnaGain(mInstance, gain);
2416 
2417 exit:
2418     return error;
2419 }
2420 
HandlePropertySet(void)2421 template <> otError NcpBase::HandlePropertySet<SPINEL_PROP_PHY_CHAN_MAX_POWER>(void)
2422 {
2423     uint8_t channel;
2424     int8_t  maxPower;
2425     otError error = OT_ERROR_NONE;
2426 
2427     SuccessOrExit(error = mDecoder.ReadUint8(channel));
2428     SuccessOrExit(error = mDecoder.ReadInt8(maxPower));
2429     error = otPlatRadioSetChannelMaxTransmitPower(mInstance, channel, maxPower);
2430 
2431 exit:
2432     return error;
2433 }
2434 
HandlePropertyGet(void)2435 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_PHY_REGION_CODE>(void)
2436 {
2437     uint16_t regionCode;
2438     otError  error = OT_ERROR_NONE;
2439 
2440     error = otPlatRadioGetRegion(mInstance, &regionCode);
2441     if (error == OT_ERROR_NONE)
2442     {
2443         error = mEncoder.WriteUint16(regionCode);
2444     }
2445     else
2446     {
2447         error = mEncoder.OverwriteWithLastStatusError(ThreadErrorToSpinelStatus(error));
2448     }
2449 
2450     return error;
2451 }
2452 
HandlePropertySet(void)2453 template <> otError NcpBase::HandlePropertySet<SPINEL_PROP_PHY_REGION_CODE>(void)
2454 {
2455     uint16_t regionCode;
2456     otError  error = OT_ERROR_NONE;
2457 
2458     SuccessOrExit(error = mDecoder.ReadUint16(regionCode));
2459     error = otPlatRadioSetRegion(mInstance, regionCode);
2460 
2461 exit:
2462     return error;
2463 }
2464 
HandlePropertyGet(void)2465 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_DEBUG_TEST_ASSERT>(void)
2466 {
2467 #ifndef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
2468     OT_ASSERT(false);
2469 #endif
2470 
2471     // We only get to this point if `OT_ASSERT(false)`
2472     // does not cause an NCP reset on the platform.
2473     // In such a case we return `false` as the
2474     // property value to indicate this.
2475 
2476     OT_UNREACHABLE_CODE(return mEncoder.WriteBool(false);)
2477 }
2478 
HandlePropertyGet(void)2479 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_DEBUG_TEST_WATCHDOG>(void)
2480 {
2481 #ifndef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
2482     while (true)
2483         ;
2484 #endif
2485 
2486     OT_UNREACHABLE_CODE(return OT_ERROR_NONE;)
2487 }
2488 
HandlePropertyGet(void)2489 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_DEBUG_NCP_LOG_LEVEL>(void)
2490 {
2491     return mEncoder.WriteUint8(ConvertLogLevel(otLoggingGetLevel()));
2492 }
2493 
2494 #if OPENTHREAD_CONFIG_LOG_LEVEL_DYNAMIC_ENABLE
HandlePropertySet(void)2495 template <> otError NcpBase::HandlePropertySet<SPINEL_PROP_DEBUG_NCP_LOG_LEVEL>(void)
2496 {
2497     otError    error;
2498     uint8_t    spinelNcpLogLevel = 0;
2499     otLogLevel logLevel;
2500 
2501     SuccessOrExit(error = mDecoder.ReadUint8(spinelNcpLogLevel));
2502 
2503     switch (spinelNcpLogLevel)
2504     {
2505     case SPINEL_NCP_LOG_LEVEL_EMERG:
2506     case SPINEL_NCP_LOG_LEVEL_ALERT:
2507         logLevel = OT_LOG_LEVEL_NONE;
2508         break;
2509 
2510     case SPINEL_NCP_LOG_LEVEL_CRIT:
2511         logLevel = OT_LOG_LEVEL_CRIT;
2512         break;
2513 
2514     case SPINEL_NCP_LOG_LEVEL_ERR:
2515     case SPINEL_NCP_LOG_LEVEL_WARN:
2516         logLevel = OT_LOG_LEVEL_WARN;
2517         break;
2518 
2519     case SPINEL_NCP_LOG_LEVEL_NOTICE:
2520         logLevel = OT_LOG_LEVEL_NOTE;
2521         break;
2522 
2523     case SPINEL_NCP_LOG_LEVEL_INFO:
2524         logLevel = OT_LOG_LEVEL_INFO;
2525         break;
2526 
2527     case SPINEL_NCP_LOG_LEVEL_DEBUG:
2528         logLevel = OT_LOG_LEVEL_DEBG;
2529         break;
2530 
2531     default:
2532         ExitNow(error = OT_ERROR_INVALID_ARGS);
2533     }
2534 
2535     IgnoreError(otLoggingSetLevel(logLevel));
2536 
2537 exit:
2538     return error;
2539 }
2540 #endif // OPENTHREAD_CONFIG_LOG_LEVEL_DYNAMIC_ENABLE
2541 
HandlePropertySet(void)2542 template <> otError NcpBase::HandlePropertySet<SPINEL_PROP_DEBUG_LOG_TIMESTAMP_BASE>(void)
2543 {
2544     uint64_t timestampBase = 0;
2545     otError  error         = OT_ERROR_NONE;
2546     uint32_t currentTime   = otPlatAlarmMilliGetNow();
2547 
2548     SuccessOrExit(error = mDecoder.ReadUint64(timestampBase));
2549     VerifyOrExit(timestampBase >= currentTime, error = OT_ERROR_INVALID_ARGS);
2550 
2551     mLogTimestampBase = timestampBase - currentTime;
2552 
2553 exit:
2554     return error;
2555 }
2556 
HandlePropertyGet(void)2557 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_DEBUG_LOG_TIMESTAMP_BASE>(void)
2558 {
2559     return mEncoder.WriteUint64(mLogTimestampBase);
2560 }
2561 
HandlePropertyGet(void)2562 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_PHY_CHAN_SUPPORTED>(void)
2563 {
2564 #if OPENTHREAD_RADIO
2565     return EncodeChannelMask(otPlatRadioGetSupportedChannelMask(mInstance));
2566 #else
2567     return EncodeChannelMask(otLinkGetSupportedChannelMask(mInstance));
2568 #endif // OPENTHREAD_RADIO
2569 }
2570 
HandlePropertyGet(void)2571 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_PHY_CHAN_PREFERRED>(void)
2572 {
2573     return EncodeChannelMask(otPlatRadioGetPreferredChannelMask(mInstance));
2574 }
2575 
2576 #if OPENTHREAD_CONFIG_PLATFORM_RADIO_COEX_ENABLE
HandlePropertySet(void)2577 template <> otError NcpBase::HandlePropertySet<SPINEL_PROP_RADIO_COEX_ENABLE>(void)
2578 {
2579     bool    enabled;
2580     otError error = OT_ERROR_NONE;
2581 
2582     SuccessOrExit(error = mDecoder.ReadBool(enabled));
2583     error = otPlatRadioSetCoexEnabled(mInstance, enabled);
2584 
2585 exit:
2586     return error;
2587 }
2588 
HandlePropertyGet(void)2589 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_RADIO_COEX_ENABLE>(void)
2590 {
2591     return mEncoder.WriteBool(otPlatRadioIsCoexEnabled(mInstance));
2592 }
2593 
HandlePropertyGet(void)2594 template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_RADIO_COEX_METRICS>(void)
2595 {
2596     otRadioCoexMetrics coexMetrics;
2597     otError            error = otPlatRadioGetCoexMetrics(mInstance, &coexMetrics);
2598 
2599     if (error != OT_ERROR_NONE)
2600     {
2601         error = mEncoder.OverwriteWithLastStatusError(ThreadErrorToSpinelStatus(error));
2602         ExitNow();
2603     }
2604 
2605     // Encode Tx Request related metrics
2606     SuccessOrExit(error = mEncoder.OpenStruct());
2607     SuccessOrExit(error = mEncoder.WriteUint32(coexMetrics.mNumTxRequest));
2608     SuccessOrExit(error = mEncoder.WriteUint32(coexMetrics.mNumTxGrantImmediate));
2609     SuccessOrExit(error = mEncoder.WriteUint32(coexMetrics.mNumTxGrantWait));
2610     SuccessOrExit(error = mEncoder.WriteUint32(coexMetrics.mNumTxGrantWaitActivated));
2611     SuccessOrExit(error = mEncoder.WriteUint32(coexMetrics.mNumTxGrantWaitTimeout));
2612     SuccessOrExit(error = mEncoder.WriteUint32(coexMetrics.mNumTxGrantDeactivatedDuringRequest));
2613     SuccessOrExit(error = mEncoder.WriteUint32(coexMetrics.mNumTxDelayedGrant));
2614     SuccessOrExit(error = mEncoder.WriteUint32(coexMetrics.mAvgTxRequestToGrantTime));
2615     SuccessOrExit(error = mEncoder.CloseStruct());
2616 
2617     // Encode Rx Request related metrics
2618     SuccessOrExit(error = mEncoder.OpenStruct());
2619     SuccessOrExit(error = mEncoder.WriteUint32(coexMetrics.mNumRxRequest));
2620     SuccessOrExit(error = mEncoder.WriteUint32(coexMetrics.mNumRxGrantImmediate));
2621     SuccessOrExit(error = mEncoder.WriteUint32(coexMetrics.mNumRxGrantWait));
2622     SuccessOrExit(error = mEncoder.WriteUint32(coexMetrics.mNumRxGrantWaitActivated));
2623     SuccessOrExit(error = mEncoder.WriteUint32(coexMetrics.mNumRxGrantWaitTimeout));
2624     SuccessOrExit(error = mEncoder.WriteUint32(coexMetrics.mNumRxGrantDeactivatedDuringRequest));
2625     SuccessOrExit(error = mEncoder.WriteUint32(coexMetrics.mNumRxDelayedGrant));
2626     SuccessOrExit(error = mEncoder.WriteUint32(coexMetrics.mAvgRxRequestToGrantTime));
2627     SuccessOrExit(error = mEncoder.WriteUint32(coexMetrics.mNumRxGrantNone));
2628     SuccessOrExit(error = mEncoder.CloseStruct());
2629 
2630     // Encode common metrics
2631     SuccessOrExit(error = mEncoder.WriteBool(coexMetrics.mStopped));
2632     SuccessOrExit(error = mEncoder.WriteUint32(coexMetrics.mNumGrantGlitch));
2633 
2634 exit:
2635     return error;
2636 }
2637 #endif
2638 
2639 #if OPENTHREAD_CONFIG_MLE_LINK_METRICS_INITIATOR_ENABLE || OPENTHREAD_CONFIG_MLE_LINK_METRICS_SUBJECT_ENABLE
DecodeLinkMetrics(otLinkMetrics * aMetrics,bool aAllowPduCount)2640 otError NcpBase::DecodeLinkMetrics(otLinkMetrics *aMetrics, bool aAllowPduCount)
2641 {
2642     otError error   = OT_ERROR_NONE;
2643     uint8_t metrics = 0;
2644 
2645     SuccessOrExit(error = mDecoder.ReadUint8(metrics));
2646 
2647     if (metrics & SPINEL_THREAD_LINK_METRIC_PDU_COUNT)
2648     {
2649         VerifyOrExit(aAllowPduCount, error = OT_ERROR_INVALID_ARGS);
2650         aMetrics->mPduCount = true;
2651     }
2652 
2653     if (metrics & SPINEL_THREAD_LINK_METRIC_LQI)
2654     {
2655         aMetrics->mLqi = true;
2656     }
2657 
2658     if (metrics & SPINEL_THREAD_LINK_METRIC_LINK_MARGIN)
2659     {
2660         aMetrics->mLinkMargin = true;
2661     }
2662 
2663     if (metrics & SPINEL_THREAD_LINK_METRIC_RSSI)
2664     {
2665         aMetrics->mRssi = true;
2666     }
2667 
2668 exit:
2669     return error;
2670 }
2671 #endif
2672 
2673 #if OPENTHREAD_CONFIG_PLATFORM_POWER_CALIBRATION_ENABLE
HandlePropertySet(void)2674 template <> otError NcpBase::HandlePropertySet<SPINEL_PROP_PHY_CHAN_TARGET_POWER>(void)
2675 {
2676     otError error;
2677     uint8_t channel;
2678     int16_t targetPower;
2679 
2680     SuccessOrExit(error = mDecoder.ReadUint8(channel));
2681     SuccessOrExit(error = mDecoder.ReadInt16(targetPower));
2682     error = otPlatRadioSetChannelTargetPower(mInstance, channel, targetPower);
2683 
2684 exit:
2685     return error;
2686 }
2687 
HandlePropertyInsert(void)2688 template <> otError NcpBase::HandlePropertyInsert<SPINEL_PROP_PHY_CALIBRATED_POWER>(void)
2689 {
2690     otError        error;
2691     uint8_t        channel;
2692     int16_t        actualPower;
2693     const uint8_t *dataPtr;
2694     uint16_t       dataLen;
2695 
2696     SuccessOrExit(error = mDecoder.ReadUint8(channel));
2697     SuccessOrExit(error = mDecoder.ReadInt16(actualPower));
2698     SuccessOrExit(error = mDecoder.ReadDataWithLen(dataPtr, dataLen));
2699     error = otPlatRadioAddCalibratedPower(mInstance, channel, actualPower, dataPtr, dataLen);
2700 
2701 exit:
2702     return error;
2703 }
2704 
HandlePropertySet(void)2705 template <> otError NcpBase::HandlePropertySet<SPINEL_PROP_PHY_CALIBRATED_POWER>(void)
2706 {
2707     return otPlatRadioClearCalibratedPowers(mInstance);
2708 }
2709 #endif // OPENTHREAD_CONFIG_PLATFORM_POWER_CALIBRATION_ENABLE
2710 
2711 } // namespace Ncp
2712 } // namespace ot
2713 
2714 // ----------------------------------------------------------------------------
2715 // MARK: Peek/Poke delegate API
2716 // ----------------------------------------------------------------------------
2717 
2718 #if OPENTHREAD_CONFIG_NCP_ENABLE_PEEK_POKE
otNcpRegisterPeekPoke(otNcpDelegateAllowPeekPoke aAllowPeekDelegate,otNcpDelegateAllowPeekPoke aAllowPokeDelegate)2719 void otNcpRegisterPeekPoke(otNcpDelegateAllowPeekPoke aAllowPeekDelegate, otNcpDelegateAllowPeekPoke aAllowPokeDelegate)
2720 {
2721     ot::Ncp::NcpBase *ncp = ot::Ncp::NcpBase::GetNcpInstance();
2722 
2723     if (ncp != nullptr)
2724     {
2725         ncp->RegisterPeekPokeDelegates(aAllowPeekDelegate, aAllowPokeDelegate);
2726     }
2727 }
2728 #endif // OPENTHREAD_CONFIG_NCP_ENABLE_PEEK_POKE
2729 
2730 // ----------------------------------------------------------------------------
2731 // MARK: Virtual Datastream I/O (Public API)
2732 // ----------------------------------------------------------------------------
2733 
otNcpStreamWrite(int aStreamId,const uint8_t * aDataPtr,int aDataLen)2734 otError otNcpStreamWrite(int aStreamId, const uint8_t *aDataPtr, int aDataLen)
2735 {
2736     otError           error = OT_ERROR_INVALID_STATE;
2737     ot::Ncp::NcpBase *ncp   = ot::Ncp::NcpBase::GetNcpInstance();
2738 
2739     if (ncp != nullptr)
2740     {
2741         error = ncp->StreamWrite(aStreamId, aDataPtr, aDataLen);
2742     }
2743 
2744     return error;
2745 }
2746 
2747 #if (OPENTHREAD_CONFIG_LOG_OUTPUT == OPENTHREAD_CONFIG_LOG_OUTPUT_APP)
2748 
otPlatLog(otLogLevel aLogLevel,otLogRegion aLogRegion,const char * aFormat,...)2749 extern "C" void otPlatLog(otLogLevel aLogLevel, otLogRegion aLogRegion, const char *aFormat, ...)
2750 {
2751     va_list           args;
2752     char              logString[OPENTHREAD_CONFIG_NCP_SPINEL_LOG_MAX_SIZE];
2753     ot::Ncp::NcpBase *ncp = ot::Ncp::NcpBase::GetNcpInstance();
2754 
2755     va_start(args, aFormat);
2756 
2757     if (vsnprintf(logString, sizeof(logString), aFormat, args) > 0)
2758     {
2759         if (ncp != nullptr)
2760         {
2761             ncp->Log(aLogLevel, aLogRegion, logString);
2762         }
2763     }
2764 
2765     va_end(args);
2766 }
2767 
2768 #endif // (OPENTHREAD_CONFIG_LOG_OUTPUT == OPENTHREAD_CONFIG_LOG_OUTPUT_APP)
2769