236         Option option;  in FindOption()  local
238         SuccessOrExit(aMessage.Read(aOffset, option));  in FindOption()
240         if (option.GetCode() == aCode)  in FindOption()
245         aOffset += sizeof(option) + option.GetLength();  in FindOption()
267     ElapsedTime option;  in ProcessElapsedTime()  local
269     SuccessOrExit(error = aMessage.Read(aOffset, option));  in ProcessElapsedTime()
270     VerifyOrExit(option.GetLength() == sizeof(option) - sizeof(Option), error = kErrorParse);  in ProcessElapsedTime()
306     IaAddress option;  in ProcessIaAddress()  local
308     SuccessOrExit(error = aMessage.Read(aOffset, option));  in ProcessIaAddress()
309     VerifyOrExit(option.GetLength() == sizeof(option) - sizeof(Option), error = kErrorParse);  in ProcessIaAddress()
314         if (mPrefixAgents[i].IsValid() && mPrefixAgents[i].IsPrefixMatch(option.GetAddress()))  in ProcessIaAddress()
370     ServerIdentifier option;  in AppendServerIdentifier()  local
375     option.Init();  in AppendServerIdentifier()
376     option.SetDuidType(kDuidLinkLayerAddress);  in AppendServerIdentifier()
377     option.SetDuidHardwareType(kHardwareTypeEui64);  in AppendServerIdentifier()
378     option.SetDuidLinkLayerAddress(eui64);  in AppendServerIdentifier()
379     SuccessOrExit(error = aMessage.Append(option));  in AppendServerIdentifier()
418     StatusCode option;  in AppendStatusCode()  local
420     option.Init();  in AppendStatusCode()
421     option.SetStatusCode(aStatusCode);  in AppendStatusCode()
422     return aMessage.Append(option);  in AppendStatusCode()
459     IaAddress option;  in AddIaAddress()  local
461     option.Init();  in AddIaAddress()
462     option.GetAddress().SetPrefix(aPrefix.mFields.m8, OT_IP6_PREFIX_BITSIZE);  in AddIaAddress()
463     option.GetAddress().GetIid().SetFromExtAddress(aClientId.GetDuidLinkLayerAddress());  in AddIaAddress()
464     option.SetPreferredLifetime(IaAddress::kDefaultPreferredLifetime);  in AddIaAddress()
465     option.SetValidLifetime(IaAddress::kDefaultValidLifetime);  in AddIaAddress()
466     SuccessOrExit(error = aMessage.Append(option));  in AddIaAddress()
474     RapidCommit option;  in AppendRapidCommit()  local
476     option.Init();  in AppendRapidCommit()
477     return aMessage.Append(option);  in AppendRapidCommit()