564 int TetherController::enableNat(const char* intIface, const char* extIface) {  in enableNat()  argument
565     ALOGV("enableNat(intIface=<%s>, extIface=<%s>)",intIface, extIface);  in enableNat()
567     if (!isIfaceName(intIface) || !isIfaceName(extIface)) {  in enableNat()
572     if (!strcmp(intIface, extIface)) {  in enableNat()
573         ALOGE("Duplicate interface specified: %s %s", intIface, extIface);  in enableNat()
577     if (isForwardingPairEnabled(intIface, extIface)) {  in enableNat()
582     if (!isAnyForwardingEnabledOnUpstream(extIface)) {  in enableNat()
585             StringPrintf("-A %s -o %s -j MASQUERADE", LOCAL_NAT_POSTROUTING, extIface),  in enableNat()
591             ALOGE("Error setting postroute rule: iface=%s", extIface);  in enableNat()
600     if (setForwardRules(true, intIface, extIface) != 0) {  in enableNat()
643         const std::string& intIface, const std::string& extIface) {  in findForwardingDownstream()  argument
644     auto extIfaceMatches = mFwdIfaces.equal_range(extIface);  in findForwardingDownstream()
653 void TetherController::addForwardingPair(const std::string& intIface, const std::string& extIface) {  in addForwardingPair()  argument
654     ForwardingDownstream* existingEntry = findForwardingDownstream(intIface, extIface);  in addForwardingPair()
660     mFwdIfaces.insert(std::pair<std::string, ForwardingDownstream>(extIface, {  in addForwardingPair()
667         const std::string& intIface, const std::string& extIface) {  in markForwardingPairDisabled()  argument
668     ForwardingDownstream* existingEntry = findForwardingDownstream(intIface, extIface);  in markForwardingPairDisabled()
677         const std::string& intIface, const std::string& extIface) {  in isForwardingPairEnabled()  argument
678     ForwardingDownstream* existingEntry = findForwardingDownstream(intIface, extIface);  in isForwardingPairEnabled()
682 bool TetherController::isAnyForwardingEnabledOnUpstream(const std::string& extIface) {  in isAnyForwardingEnabledOnUpstream()  argument
683     auto extIfaceMatches = mFwdIfaces.equal_range(extIface);  in isAnyForwardingEnabledOnUpstream()
715 int TetherController::setForwardRules(bool add, const char *intIface, const char *extIface) {  in setForwardRules()  argument
735                          LOCAL_FORWARD, extIface, intIface, LOCAL_TETHER_COUNTERS_CHAIN),  in setForwardRules()
737                          intIface, extIface),  in setForwardRules()
738             StringPrintf("%s %s -i %s -o %s -g %s", op, LOCAL_FORWARD, intIface, extIface,  in setForwardRules()
747     if (add && !tetherCountingRuleExists(intIface, extIface)) {  in setForwardRules()
748         v4.push_back(makeTetherCountingRule(intIface, extIface));  in setForwardRules()
749         v4.push_back(makeTetherCountingRule(extIface, intIface));  in setForwardRules()
750         v6.push_back(makeTetherCountingRule(intIface, extIface));  in setForwardRules()
751         v6.push_back(makeTetherCountingRule(extIface, intIface));  in setForwardRules()
770             setForwardRules(false, intIface, extIface);  in setForwardRules()
776         addForwardingPair(intIface, extIface);  in setForwardRules()
778         markForwardingPairDisabled(intIface, extIface);  in setForwardRules()
784 int TetherController::disableNat(const char* intIface, const char* extIface) {  in disableNat()  argument
785     if (!isIfaceName(intIface) || !isIfaceName(extIface)) {  in disableNat()
790     setForwardRules(false, intIface, extIface);  in disableNat()
886             stats.extIface = iface1;  in addForwardChainStats()
889         } else if (stats.intIface == iface1 && stats.extIface == iface0) {  in addForwardChainStats()