541 int TetherController::enableNat(const char* intIface, const char* extIface) {  in enableNat()  argument
542     ALOGV("enableNat(intIface=<%s>, extIface=<%s>)",intIface, extIface);  in enableNat()
544     if (!isIfaceName(intIface) || !isIfaceName(extIface)) {  in enableNat()
549     if (!strcmp(intIface, extIface)) {  in enableNat()
550         ALOGE("Duplicate interface specified: %s %s", intIface, extIface);  in enableNat()
554     if (isForwardingPairEnabled(intIface, extIface)) {  in enableNat()
559     if (!isAnyForwardingEnabledOnUpstream(extIface)) {  in enableNat()
562             StringPrintf("-A %s -o %s -j MASQUERADE", LOCAL_NAT_POSTROUTING, extIface),  in enableNat()
568             ALOGE("Error setting postroute rule: iface=%s", extIface);  in enableNat()
577     if (setForwardRules(true, intIface, extIface) != 0) {  in enableNat()
620         const std::string& intIface, const std::string& extIface) {  in findForwardingDownstream()  argument
621     auto extIfaceMatches = mFwdIfaces.equal_range(extIface);  in findForwardingDownstream()
630 void TetherController::addForwardingPair(const std::string& intIface, const std::string& extIface) {  in addForwardingPair()  argument
631     ForwardingDownstream* existingEntry = findForwardingDownstream(intIface, extIface);  in addForwardingPair()
637     mFwdIfaces.insert(std::pair<std::string, ForwardingDownstream>(extIface, {  in addForwardingPair()
644         const std::string& intIface, const std::string& extIface) {  in markForwardingPairDisabled()  argument
645     ForwardingDownstream* existingEntry = findForwardingDownstream(intIface, extIface);  in markForwardingPairDisabled()
654         const std::string& intIface, const std::string& extIface) {  in isForwardingPairEnabled()  argument
655     ForwardingDownstream* existingEntry = findForwardingDownstream(intIface, extIface);  in isForwardingPairEnabled()
659 bool TetherController::isAnyForwardingEnabledOnUpstream(const std::string& extIface) {  in isAnyForwardingEnabledOnUpstream()  argument
660     auto extIfaceMatches = mFwdIfaces.equal_range(extIface);  in isAnyForwardingEnabledOnUpstream()
692 int TetherController::setForwardRules(bool add, const char *intIface, const char *extIface) {  in setForwardRules()  argument
712                          LOCAL_FORWARD, extIface, intIface, LOCAL_TETHER_COUNTERS_CHAIN),  in setForwardRules()
714                          intIface, extIface),  in setForwardRules()
715             StringPrintf("%s %s -i %s -o %s -g %s", op, LOCAL_FORWARD, intIface, extIface,  in setForwardRules()
724     if (add && !tetherCountingRuleExists(intIface, extIface)) {  in setForwardRules()
725         v4.push_back(makeTetherCountingRule(intIface, extIface));  in setForwardRules()
726         v4.push_back(makeTetherCountingRule(extIface, intIface));  in setForwardRules()
727         v6.push_back(makeTetherCountingRule(intIface, extIface));  in setForwardRules()
728         v6.push_back(makeTetherCountingRule(extIface, intIface));  in setForwardRules()
747             setForwardRules(false, intIface, extIface);  in setForwardRules()
753         addForwardingPair(intIface, extIface);  in setForwardRules()
755         markForwardingPairDisabled(intIface, extIface);  in setForwardRules()
761 int TetherController::disableNat(const char* intIface, const char* extIface) {  in disableNat()  argument
762     if (!isIfaceName(intIface) || !isIfaceName(extIface)) {  in disableNat()
767     setForwardRules(false, intIface, extIface);  in disableNat()
865             stats.extIface = iface1;  in addForwardChainStats()
868         } else if (stats.intIface == iface1 && stats.extIface == iface0) {  in addForwardChainStats()