表達網絡配置的編程語言建議

Question

我想看看是否有表達網絡配置的語言。我可以使用M4和YAML來宏觀化一些配置，但是使用條件語句，它們似乎崩潰了。

任何建議？

感謝， 尼爾

Answer 1

我NCD programming language可能是你要找的。

下面是通過DHCP配置有線網絡接口（同一個從維基）的一個樣本程序：

process lan { 
    # Set device. 
    var("eth0") dev; 

    # Wait for device, set it up, and wait for network cable. 
    net.backend.waitdevice(dev); 
    net.up(dev); 
    net.backend.waitlink(dev); 

    # DHCP configuration. 
    # net.ipv4.dhcp() will block here until it obtaines an IP address. 
    # Note that it will only obtain the IP address, and *not* assign it; 
    # we do that with a separate command below. 
    net.ipv4.dhcp(dev) dhcp; 

    # Check IP address - make sure it's not local. 
    # If you have other reserved subnets around, check for those too. 
    ip_in_network(dhcp.addr, "127.0.0.0", "8") test_local; 
    ifnot(test_local); 

    # Assign IP address, as obtained by DHCP. 
    net.ipv4.addr(dev, dhcp.addr, dhcp.prefix); 

    # Add default route, as obtained by DHCP. 
    net.ipv4.route("0.0.0.0", "0", dhcp.gateway, "20", dev); 

    # Configure DNS servers, as obtained by DHCP. 
    net.dns(dhcp.dns_servers, "20"); 
} 

請務必閱讀整個NCD維基頁面。 NCD的功能遠不止於它最初的樣子（比如，條件，循環，未知設備的動態配置......）。它甚至可以執行一些非網絡相關的任務，如報告輸入設備（鍵盤，鼠標）事件。