哪里可以得到设备类型常量描述？

I'm getting the information about system network devices through netlink socket. I'm parsing three message types RTM_NEWLINK, RTM_DELLINK, RTM_GETLINK defined in the ifinfomsg structure.

我通过netlink socket获取有关系统网络设备的信息。我正在解析ifinfomsg结构中定义的三种消息类型RTM_NEWLINK，RTM_DELLINK，RTM_GETLINK。

struct ifinfomsg {
    unsigned char  ifi_family; /* AF_UNSPEC */
    unsigned short ifi_type;   /* Device type */
    int            ifi_index;  /* Interface index */
    unsigned int   ifi_flags;  /* Device flags  */
    unsigned int   ifi_change; /* change mask */
};

the definition is from here http://www.kernel.org/doc/man-pages/online/pages/man7/rtnetlink.7.html

定义来自http://www.kernel.org/doc/man-pages/online/pages/man7/rtnetlink.7.html

But there are no description for the device type field ifi_type, where can I found the constants that describes the possible values?

但是没有设备类型字段ifi_type的描述，在哪里可以找到描述可能值的常量？

there are no description even here http://www.foxprofr.com/rfc/RFC3549-LINUX-NETLINK-AS-AN-IP-SERVICES-PROTOCOL/3549.aspx

这里没有描述http://www.foxprofr.com/rfc/RFC3549-LINUX-NETLINK-AS-AN-IP-SERVICES-PROTOCOL/3549.aspx

Now I know that 1 is ethernet and 772 is loopback, but I'd like to know all possible values. May be the answer is very obvious but google doesn't want to tell me anything usefull.

现在我知道1是以太网，772是环回，但我想知道所有可能的值。可能答案很明显，但谷歌不想告诉我任何有用的东西。

1 个解决方案

#1

Take a look at /usr/include/net/if_arp.h, you will find the constants there as ARPHRD_*. If you want to make your life somewhat easier, check out libnl if you don't use it already.

看一下/usr/include/net/if_arp.h，你会发现那里的常量为ARPHRD_ *。如果您想让生活更轻松，请查看libnl，如果您还没有使用它。