526互联

Android Dns

发布时间 2023-12-14 15:01:28作者: 梦过无声
    // NetworkManagementService.java
    @Override
    public void setDnsServersForNetwork(int netId, String[] servers, String domains) {
        mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG);

        Command cmd;
        if (servers.length > 0) {
            cmd = new Command("resolver", "setnetdns", netId,
                    (domains == null ? "" : domains));
            for (String s : servers) {                                                  
                InetAddress a = NetworkUtils.numericToInetAddress(s);
                if (a.isAnyLocalAddress() == false) {
                    cmd.appendArg(a.getHostAddress());
                }
            }
        } else {
            cmd = new Command("resolver", "clearnetdns", netId);
        }

        try {
            mConnector.execute(cmd);
        } catch (NativeDaemonConnectorException e) {
            throw e.rethrowAsParcelableException();
        }
    }

等于命令ndc resolver setnetdns net.dns1 8.8.8.8 8.8.4.4

同理:我们可以发现非常多命令

    @Override
    public InterfaceConfiguration getInterfaceConfig(String iface) {
        mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG);

        final NativeDaemonEvent event;
        try {
            event = mConnector.execute("interface", "getcfg", iface);
        } catch (NativeDaemonConnectorException e) {
            throw e.rethrowAsParcelableException();
        }
        ...
    }

等于命令ndc interface getcfg eth0