c语言ioctl定义的常量 /usr/include/x86_64-linux-gnu/bits/ioctls.h

/* Copyright (C) 1996-2015 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, see

   <http://www.gnu.org/licenses/>.  */

#ifndef _SYS_IOCTL_H

# error "Never use <bits/ioctls.h> directly; include <sys/ioctl.h> instead."

#endif

/* Use the definitions from the kernel header files.  */

#include <asm/ioctls.h>

/* Routing table calls.  */

#define SIOCADDRT   0x890B      /* add routing table entry  */

#define SIOCDELRT   0x890C      /* delete routing table entry   */

#define SIOCRTMSG   0x890D      /* call to routing system   */

/* Socket configuration controls. */

#define SIOCGIFNAME 0x8910      /* get iface name       */

#define SIOCSIFLINK 0x8911      /* set iface channel        */

#define SIOCGIFCONF 0x8912      /* get iface list       */

#define SIOCGIFFLAGS    0x8913      /* get flags            */

#define SIOCSIFFLAGS    0x8914      /* set flags            */

#define SIOCGIFADDR 0x8915      /* get PA address       */

#define SIOCSIFADDR 0x8916      /* set PA address       */

#define SIOCGIFDSTADDR  0x8917      /* get remote PA address    */

#define SIOCSIFDSTADDR  0x8918      /* set remote PA address    */

#define SIOCGIFBRDADDR  0x8919      /* get broadcast PA address */

#define SIOCSIFBRDADDR  0x891a      /* set broadcast PA address */

#define SIOCGIFNETMASK  0x891b      /* get network PA mask      */

#define SIOCSIFNETMASK  0x891c      /* set network PA mask      */

#define SIOCGIFMETRIC   0x891d      /* get metric           */

#define SIOCSIFMETRIC   0x891e      /* set metric           */

#define SIOCGIFMEM  0x891f      /* get memory address (BSD) */

#define SIOCSIFMEM  0x8920      /* set memory address (BSD) */

#define SIOCGIFMTU  0x8921      /* get MTU size         */

#define SIOCSIFMTU  0x8922      /* set MTU size         */

#define SIOCSIFNAME 0x8923      /* set interface name       */

#define SIOCSIFHWADDR   0x8924      /* set hardware address     */

#define SIOCGIFENCAP    0x8925      /* get/set encapsulations       */

#define SIOCSIFENCAP    0x8926

#define SIOCGIFHWADDR   0x8927      /* Get hardware address     */

#define SIOCGIFSLAVE    0x8929      /* Driver slaving support   */

#define SIOCSIFSLAVE    0x8930

#define SIOCADDMULTI    0x8931      /* Multicast address lists  */

#define SIOCDELMULTI    0x8932

#define SIOCGIFINDEX    0x8933      /* name -> if_index mapping */

#define SIOGIFINDEX SIOCGIFINDEX    /* misprint compatibility :-)   */

#define SIOCSIFPFLAGS   0x8934      /* set/get extended flags set   */

#define SIOCGIFPFLAGS   0x8935

#define SIOCDIFADDR 0x8936      /* delete PA address        */

#define SIOCSIFHWBROADCAST  0x8937  /* set hardware broadcast addr  */

#define SIOCGIFCOUNT    0x8938      /* get number of devices */

#define SIOCGIFBR   0x8940      /* Bridging support     */

#define SIOCSIFBR   0x8941      /* Set bridging options     */

#define SIOCGIFTXQLEN   0x8942      /* Get the tx queue length  */

#define SIOCSIFTXQLEN   0x8943      /* Set the tx queue length  */

/* ARP cache control calls. */

            /*  0x8950 - 0x8952  * obsolete calls, don't re-use */

#define SIOCDARP    0x8953      /* delete ARP table entry   */

#define SIOCGARP    0x8954      /* get ARP table entry      */

#define SIOCSARP    0x8955      /* set ARP table entry      */

/* RARP cache control calls. */

#define SIOCDRARP   0x8960      /* delete RARP table entry  */

#define SIOCGRARP   0x8961      /* get RARP table entry     */

#define SIOCSRARP   0x8962      /* set RARP table entry     */

/* Driver configuration calls */

#define SIOCGIFMAP  0x8970      /* Get device parameters    */

#define SIOCSIFMAP  0x8971      /* Set device parameters    */

/* DLCI configuration calls */

#define SIOCADDDLCI 0x8980      /* Create new DLCI device   */

#define SIOCDELDLCI 0x8981      /* Delete DLCI device       */

/* Device private ioctl calls.  */

/* These 16 ioctls are available to devices via the do_ioctl() device

   vector.  Each device should include this file and redefine these

   names as their own. Because these are device dependent it is a good

   idea _NOT_ to issue them to random objects and hope.  */

#define SIOCDEVPRIVATE      0x89F0  /* to 89FF */

/*

 *  These 16 ioctl calls are protocol private

 */

#define SIOCPROTOPRIVATE 0x89E0 /* to 89EF */

#!/usr/bin/python

# -*- coding: utf-8 -*-

import socket, fcntl, struct

import re

# https://docs.python.org/2/library/fcntl.html

with open('/proc/net/route', 'r') as f:

    for line in f:

        m = re.match('(\S+)\s+(\S+)\s+(\S+)\s+.*', line)

        if m.group(1) !='Iface' and m.group(2) == '00000000' and m.group(3) != '00000000':

            interface = m.group(1)

            gateway =  '.'.join([

                str(int(m.group(3)[6:8], 16)),

                str(int(m.group(3)[4:6], 16)),

                str(int(m.group(3)[2:4], 16)),

                str(int(m.group(3)[0:2], 16))

            ])

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

ip = socket.inet_ntoa(fcntl.ioctl(s.fileno(), 0x8915, struct.pack('256s', interface))[20:24])

netmask = socket.inet_ntoa(fcntl.ioctl(s.fileno(), 0x891b, struct.pack('256s', interface))[20:24])

if __name__ == '__main__':

    print '%s: %s / %s / %s' % (interface, ip, netmask, gateway)

# eth0: 192.168.28.143 / 255.255.255.0 / 192.168.28.3