245     Ip6::Header ip6Header;  in Compress()  local
246     uint8_t    *ip6HeaderBytes = reinterpret_cast<uint8_t *>(&ip6Header);  in Compress()
254     SuccessOrExit(error = aMessage.Read(aMessage.GetOffset(), ip6Header));  in Compress()
256     FindContextToCompressAddress(ip6Header.GetSource(), srcContext);  in Compress()
257     FindContextToCompressAddress(ip6Header.GetDestination(), dstContext);  in Compress()
306     switch (ip6Header.GetNextHeader())  in Compress()
319 … SuccessOrExit(error = aFrameBuilder.AppendUint8(static_cast<uint8_t>(ip6Header.GetNextHeader())));  in Compress()
324     switch (ip6Header.GetHopLimit())  in Compress()
339         SuccessOrExit(error = aFrameBuilder.AppendUint8(ip6Header.GetHopLimit()));  in Compress()
344     if (ip6Header.GetSource().IsUnspecified())  in Compress()
348     else if (ip6Header.GetSource().IsLinkLocal())  in Compress()
351 …error = CompressSourceIid(aMacAddrs.mSource, ip6Header.GetSource(), srcContext, hcCtl, aFrameBuild…  in Compress()
357 …error = CompressSourceIid(aMacAddrs.mSource, ip6Header.GetSource(), srcContext, hcCtl, aFrameBuild…  in Compress()
361         SuccessOrExit(error = aFrameBuilder.Append(ip6Header.GetSource()));  in Compress()
365     if (ip6Header.GetDestination().IsMulticast())  in Compress()
367         SuccessOrExit(error = CompressMulticast(ip6Header.GetDestination(), hcCtl, aFrameBuilder));  in Compress()
369     else if (ip6Header.GetDestination().IsLinkLocal())  in Compress()
371 …SuccessOrExit(error = CompressDestinationIid(aMacAddrs.mDestination, ip6Header.GetDestination(), d…  in Compress()
377 …SuccessOrExit(error = CompressDestinationIid(aMacAddrs.mDestination, ip6Header.GetDestination(), d…  in Compress()
382         SuccessOrExit(error = aFrameBuilder.Append(ip6Header.GetDestination()));  in Compress()
387     aMessage.MoveOffset(sizeof(ip6Header));  in Compress()
389     nextHeader = static_cast<uint8_t>(ip6Header.GetNextHeader());  in Compress()
976     Ip6::Header ip6Header;  in Decompress()  local
981     SuccessOrExit(DecompressBaseHeader(ip6Header, compressed, aMacAddrs, aFrameData));  in Decompress()
983     SuccessOrExit(aMessage.Append(ip6Header));  in Decompress()
984     aMessage.MoveOffset(sizeof(ip6Header));  in Decompress()