826 Result<void> validateOffloadRule(const TetherOffloadRuleParcel& rule) {  in validateOffloadRule()  argument
829     if (rule.inputInterfaceIndex <= 0) {  in validateOffloadRule()
830         return Error(ENODEV) << "Invalid input interface " << rule.inputInterfaceIndex;  in validateOffloadRule()
832     if (rule.outputInterfaceIndex <= 0) {  in validateOffloadRule()
833         return Error(ENODEV) << "Invalid output interface " << rule.inputInterfaceIndex;  in validateOffloadRule()
835     if (rule.prefixLength != 128) {  in validateOffloadRule()
836         return Error(EINVAL) << "Prefix length must be 128, not " << rule.prefixLength;  in validateOffloadRule()
838     if (rule.destination.size() != sizeof(in6_addr)) {  in validateOffloadRule()
839         return Error(EAFNOSUPPORT) << "Invalid IP address length " << rule.destination.size();  in validateOffloadRule()
841     if (rule.srcL2Address.size() != sizeof(hdr.h_source)) {  in validateOffloadRule()
842         return Error(ENXIO) << "Invalid L2 src address length " << rule.srcL2Address.size();  in validateOffloadRule()
844     if (rule.dstL2Address.size() != sizeof(hdr.h_dest)) {  in validateOffloadRule()
845         return Error(ENXIO) << "Invalid L2 dst address length " << rule.dstL2Address.size();  in validateOffloadRule()
847     if (rule.pmtu < IPV6_MIN_MTU || rule.pmtu > 0xFFFF) {  in validateOffloadRule()
848         return Error(EINVAL) << "Invalid IPv6 path mtu " << rule.pmtu;  in validateOffloadRule()
854 Result<void> TetherController::addOffloadRule(const TetherOffloadRuleParcel& rule) {  in addOffloadRule()  argument
855     Result<void> res = validateOffloadRule(rule);  in addOffloadRule()
861     memcpy(&hdr.h_dest, rule.dstL2Address.data(), sizeof(hdr.h_dest));  in addOffloadRule()
862     memcpy(&hdr.h_source, rule.srcL2Address.data(), sizeof(hdr.h_source));  in addOffloadRule()
866             .iif = static_cast<uint32_t>(rule.inputInterfaceIndex),  in addOffloadRule()
867             .neigh6 = *(const in6_addr*)rule.destination.data(),  in addOffloadRule()
871             .oif = static_cast<uint32_t>(rule.outputInterfaceIndex),  in addOffloadRule()
873             .pmtu = static_cast<uint16_t>(rule.pmtu),  in addOffloadRule()
879 Result<void> TetherController::removeOffloadRule(const TetherOffloadRuleParcel& rule) {  in removeOffloadRule()  argument
880     Result<void> res = validateOffloadRule(rule);  in removeOffloadRule()
884             .iif = static_cast<uint32_t>(rule.inputInterfaceIndex),  in removeOffloadRule()
885             .neigh6 = *(const in6_addr*)rule.destination.data(),  in removeOffloadRule()