Update MRP parameter for PASE/CASE establishment (#21793)

Author: kghost

src/protocols/secure_channel/CASESession.cpp

@@ -882,6 +882,7 @@ CHIP_ERROR CASESession::HandleSigma2Resume(System::PacketBufferHandle && msg)
     if (tlvReader.Next() != CHIP_END_OF_TLV)
     {
         SuccessOrExit(err = DecodeMRPParametersIfPresent(TLV::ContextTag(4), tlvReader));
+        mExchangeCtxt->GetSessionHandle()->AsUnauthenticatedSession()->SetRemoteMRPConfig(mRemoteMRPConfig);
     }
 
     ChipLogDetail(SecureChannel, "Peer assigned session session ID %d", responderSessionId);
@@ -1066,6 +1067,7 @@ CHIP_ERROR CASESession::HandleSigma2(System::PacketBufferHandle && msg)
     if (tlvReader.Next() != CHIP_END_OF_TLV)
     {
         SuccessOrExit(err = DecodeMRPParametersIfPresent(TLV::ContextTag(kTag_Sigma2_ResponderMRPParams), tlvReader));
+        mExchangeCtxt->GetSessionHandle()->AsUnauthenticatedSession()->SetRemoteMRPConfig(mRemoteMRPConfig);
     }
 
 exit:
@@ -1655,6 +1657,7 @@ CHIP_ERROR CASESession::ParseSigma1(TLV::ContiguousBufferTLVReader & tlvReader,
     if (err == CHIP_NO_ERROR && tlvReader.GetTag() == ContextTag(kInitiatorMRPParamsTag))
     {
         ReturnErrorOnFailure(DecodeMRPParametersIfPresent(TLV::ContextTag(kInitiatorMRPParamsTag), tlvReader));
+        mExchangeCtxt->GetSessionHandle()->AsUnauthenticatedSession()->SetRemoteMRPConfig(mRemoteMRPConfig);
         err = tlvReader.Next();
     }
 

src/protocols/secure_channel/PASESession.cpp

@@ -347,6 +347,7 @@ CHIP_ERROR PASESession::HandlePBKDFParamRequest(System::PacketBufferHandle && ms
     if (tlvReader.Next() != CHIP_END_OF_TLV)
     {
         SuccessOrExit(err = DecodeMRPParametersIfPresent(TLV::ContextTag(5), tlvReader));
+        mExchangeCtxt->GetSessionHandle()->AsUnauthenticatedSession()->SetRemoteMRPConfig(mRemoteMRPConfig);
     }
 
     err = SendPBKDFParamResponse(ByteSpan(initiatorRandom), hasPBKDFParameters);
@@ -470,6 +471,7 @@ CHIP_ERROR PASESession::HandlePBKDFParamResponse(System::PacketBufferHandle && m
         if (tlvReader.Next() != CHIP_END_OF_TLV)
         {
             SuccessOrExit(err = DecodeMRPParametersIfPresent(TLV::ContextTag(5), tlvReader));
+            mExchangeCtxt->GetSessionHandle()->AsUnauthenticatedSession()->SetRemoteMRPConfig(mRemoteMRPConfig);
         }
 
         // TODO - Add a unit test that exercises mHavePBKDFParameters path
@@ -494,6 +496,7 @@ CHIP_ERROR PASESession::HandlePBKDFParamResponse(System::PacketBufferHandle && m
         if (tlvReader.Next() != CHIP_END_OF_TLV)
         {
             SuccessOrExit(err = DecodeMRPParametersIfPresent(TLV::ContextTag(5), tlvReader));
+            mExchangeCtxt->GetSessionHandle()->AsUnauthenticatedSession()->SetRemoteMRPConfig(mRemoteMRPConfig);
         }
     }