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2084 lines
45 KiB
C
2084 lines
45 KiB
C
/*
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* stolen from net-tools-1.59 and stripped down for busybox by
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* Erik Andersen <andersen@codepoet.org>
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*
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* Heavily modified by Manuel Novoa III Mar 12, 2001
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*
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* Pruned unused code using KEEP_UNUSED define.
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* Added print_bytes_scaled function to reduce code size.
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* Added some (potentially) missing defines.
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* Improved display support for -a and for a named interface.
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*
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* -----------------------------------------------------------
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*
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* ifconfig This file contains an implementation of the command
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* that either displays or sets the characteristics of
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* one or more of the system's networking interfaces.
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*
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* Version: $Id: interface.c,v 1.25 2004/08/26 21:45:21 andersen Exp $
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*
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* Author: Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org>
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* and others. Copyright 1993 MicroWalt Corporation
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*
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* This program is free software; you can redistribute it
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* and/or modify it under the terms of the GNU General
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* Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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* Patched to support 'add' and 'del' keywords for INET(4) addresses
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* by Mrs. Brisby <mrs.brisby@nimh.org>
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*
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* {1.34} - 19980630 - Arnaldo Carvalho de Melo <acme@conectiva.com.br>
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* - gettext instead of catgets for i18n
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* 10/1998 - Andi Kleen. Use interface list primitives.
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* 20001008 - Bernd Eckenfels, Patch from RH for setting mtu
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* (default AF was wrong)
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*/
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/* #define KEEP_UNUSED */
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/*
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*
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* Protocol Families.
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*
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*/
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#define HAVE_AFINET 1
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#undef HAVE_AFIPX
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#undef HAVE_AFATALK
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#undef HAVE_AFNETROM
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#undef HAVE_AFX25
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#undef HAVE_AFECONET
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#undef HAVE_AFASH
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/*
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*
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* Device Hardware types.
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*
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*/
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#define HAVE_HWETHER 1
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#define HAVE_HWPPP 1
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#undef HAVE_HWSLIP
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#include "inet_common.h"
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#include <stdio.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <ctype.h>
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#include <sys/ioctl.h>
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#include <sys/types.h>
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#include <net/if.h>
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#include <net/if_arp.h>
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#include "libbb.h"
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#ifdef CONFIG_FEATURE_IPV6
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# define HAVE_AFINET6 1
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#else
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# undef HAVE_AFINET6
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#endif
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#define _(x) x
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#define _PATH_PROCNET_DEV "/proc/net/dev"
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#define _PATH_PROCNET_IFINET6 "/proc/net/if_inet6"
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#define new(p) ((p) = xcalloc(1,sizeof(*(p))))
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#define KRELEASE(maj,min,patch) ((maj) * 65536 + (min)*256 + (patch))
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#ifdef HAVE_HWSLIP
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#include <net/if_slip.h>
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#endif
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#if HAVE_AFINET6
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#ifndef _LINUX_IN6_H
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/*
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* This is in linux/include/net/ipv6.h.
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*/
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struct in6_ifreq {
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struct in6_addr ifr6_addr;
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uint32_t ifr6_prefixlen;
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unsigned int ifr6_ifindex;
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};
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#endif
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#endif /* HAVE_AFINET6 */
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#if HAVE_AFIPX
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#if (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1)
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#include <netipx/ipx.h>
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#else
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#include "ipx.h"
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#endif
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#endif
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/* Defines for glibc2.0 users. */
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#ifndef SIOCSIFTXQLEN
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#define SIOCSIFTXQLEN 0x8943
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#define SIOCGIFTXQLEN 0x8942
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#endif
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/* ifr_qlen is ifru_ivalue, but it isn't present in 2.0 kernel headers */
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#ifndef ifr_qlen
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#define ifr_qlen ifr_ifru.ifru_mtu
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#endif
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#ifndef HAVE_TXQUEUELEN
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#define HAVE_TXQUEUELEN 1
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#endif
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#ifndef IFF_DYNAMIC
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#define IFF_DYNAMIC 0x8000 /* dialup device with changing addresses */
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#endif
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/* This structure defines protocol families and their handlers. */
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struct aftype {
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const char *name;
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const char *title;
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int af;
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int alen;
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char *(*print) (unsigned char *);
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char *(*sprint) (struct sockaddr *, int numeric);
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int (*input) (int type, char *bufp, struct sockaddr *);
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void (*herror) (char *text);
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int (*rprint) (int options);
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int (*rinput) (int typ, int ext, char **argv);
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/* may modify src */
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int (*getmask) (char *src, struct sockaddr * mask, char *name);
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int fd;
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char *flag_file;
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};
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#ifdef KEEP_UNUSED
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static int flag_unx;
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#ifdef HAVE_AFIPX
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static int flag_ipx;
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#endif
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#ifdef HAVE_AFX25
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static int flag_ax25;
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#endif
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#ifdef HAVE_AFATALK
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static int flag_ddp;
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#endif
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#ifdef HAVE_AFNETROM
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static int flag_netrom;
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#endif
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static int flag_inet;
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#ifdef HAVE_AFINET6
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static int flag_inet6;
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#endif
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#ifdef HAVE_AFECONET
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static int flag_econet;
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#endif
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#ifdef HAVE_AFX25
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static int flag_x25 = 0;
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#endif
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#ifdef HAVE_AFASH
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static int flag_ash;
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#endif
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static struct aftrans_t {
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char *alias;
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char *name;
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int *flag;
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} aftrans[] = {
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#ifdef HAVE_AFX25
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{
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"ax25", "ax25", &flag_ax25},
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#endif
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{
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"ip", "inet", &flag_inet},
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#ifdef HAVE_AFINET6
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{
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"ip6", "inet6", &flag_inet6},
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#endif
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#ifdef HAVE_AFIPX
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{
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"ipx", "ipx", &flag_ipx},
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#endif
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#ifdef HAVE_AFATALK
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{
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"appletalk", "ddp", &flag_ddp},
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#endif
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#ifdef HAVE_AFNETROM
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{
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"netrom", "netrom", &flag_netrom},
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#endif
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{
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"inet", "inet", &flag_inet},
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#ifdef HAVE_AFINET6
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{
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"inet6", "inet6", &flag_inet6},
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#endif
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#ifdef HAVE_AFATALK
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{
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"ddp", "ddp", &flag_ddp},
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#endif
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{
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"unix", "unix", &flag_unx}, {
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"tcpip", "inet", &flag_inet},
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#ifdef HAVE_AFECONET
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{
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"econet", "ec", &flag_econet},
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#endif
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#ifdef HAVE_AFX25
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{
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"x25", "x25", &flag_x25},
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#endif
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#ifdef HAVE_AFASH
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{
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"ash", "ash", &flag_ash},
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#endif
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{
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0, 0, 0}
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};
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static char afname[256] = "";
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#endif /* KEEP_UNUSED */
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#if HAVE_AFUNIX
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/* Display a UNIX domain address. */
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static char *UNIX_print(unsigned char *ptr)
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{
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return (ptr);
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}
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/* Display a UNIX domain address. */
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static char *UNIX_sprint(struct sockaddr *sap, int numeric)
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{
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static char buf[64];
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if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
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return safe_strncpy(buf, _("[NONE SET]"), sizeof(buf));
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return (UNIX_print(sap->sa_data));
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}
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static struct aftype unix_aftype = {
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"unix", "UNIX Domain", AF_UNIX, 0,
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UNIX_print, UNIX_sprint, NULL, NULL,
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NULL, NULL, NULL,
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-1,
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"/proc/net/unix"
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};
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#endif /* HAVE_AFUNIX */
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#if HAVE_AFINET
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#ifdef KEEP_UNUSED
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static void INET_reserror(char *text)
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{
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herror(text);
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}
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/* Display an Internet socket address. */
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static char *INET_print(unsigned char *ptr)
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{
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return (inet_ntoa((*(struct in_addr *) ptr)));
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}
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#endif /* KEEP_UNUSED */
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/* Display an Internet socket address. */
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static char *INET_sprint(struct sockaddr *sap, int numeric)
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{
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static char buff[128];
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if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
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return safe_strncpy(buff, _("[NONE SET]"), sizeof(buff));
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if (INET_rresolve(buff, sizeof(buff), (struct sockaddr_in *) sap,
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numeric, 0xffffff00) != 0)
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return (NULL);
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return (buff);
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}
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#ifdef KEEP_UNUSED
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static char *INET_sprintmask(struct sockaddr *sap, int numeric,
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unsigned int netmask)
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{
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static char buff[128];
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if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
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return safe_strncpy(buff, _("[NONE SET]"), sizeof(buff));
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if (INET_rresolve(buff, sizeof(buff), (struct sockaddr_in *) sap,
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numeric, netmask) != 0)
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return (NULL);
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return (buff);
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}
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static int INET_getsock(char *bufp, struct sockaddr *sap)
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{
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char *sp = bufp, *bp;
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unsigned int i;
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unsigned val;
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struct sockaddr_in *sin;
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sin = (struct sockaddr_in *) sap;
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sin->sin_family = AF_INET;
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sin->sin_port = 0;
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val = 0;
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bp = (char *) &val;
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for (i = 0; i < sizeof(sin->sin_addr.s_addr); i++) {
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*sp = toupper(*sp);
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if ((*sp >= 'A') && (*sp <= 'F'))
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bp[i] |= (int) (*sp - 'A') + 10;
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else if ((*sp >= '0') && (*sp <= '9'))
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bp[i] |= (int) (*sp - '0');
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else
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return (-1);
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bp[i] <<= 4;
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sp++;
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*sp = toupper(*sp);
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if ((*sp >= 'A') && (*sp <= 'F'))
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bp[i] |= (int) (*sp - 'A') + 10;
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else if ((*sp >= '0') && (*sp <= '9'))
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bp[i] |= (int) (*sp - '0');
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else
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return (-1);
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sp++;
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}
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sin->sin_addr.s_addr = htonl(val);
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return (sp - bufp);
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}
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static int INET_input(int type, char *bufp, struct sockaddr *sap)
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{
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switch (type) {
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case 1:
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return (INET_getsock(bufp, sap));
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case 256:
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return (INET_resolve(bufp, (struct sockaddr_in *) sap, 1));
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default:
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return (INET_resolve(bufp, (struct sockaddr_in *) sap, 0));
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}
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}
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static int INET_getnetmask(char *adr, struct sockaddr *m, char *name)
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{
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struct sockaddr_in *mask = (struct sockaddr_in *) m;
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char *slash, *end;
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int prefix;
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if ((slash = strchr(adr, '/')) == NULL)
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return 0;
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*slash++ = '\0';
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prefix = strtoul(slash, &end, 0);
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if (*end != '\0')
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return -1;
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if (name) {
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sprintf(name, "/%d", prefix);
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}
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mask->sin_family = AF_INET;
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mask->sin_addr.s_addr = htonl(~(0xffffffffU >> prefix));
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return 1;
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}
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#endif /* KEEP_UNUSED */
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static struct aftype inet_aftype = {
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"inet", "DARPA Internet", AF_INET, sizeof(unsigned long),
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NULL /* UNUSED INET_print */ , INET_sprint,
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NULL /* UNUSED INET_input */ , NULL /* UNUSED INET_reserror */ ,
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NULL /*INET_rprint */ , NULL /*INET_rinput */ ,
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NULL /* UNUSED INET_getnetmask */ ,
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-1,
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NULL
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};
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#endif /* HAVE_AFINET */
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#if HAVE_AFINET6
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#ifdef KEEP_UNUSED
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static void INET6_reserror(char *text)
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{
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herror(text);
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}
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/* Display an Internet socket address. */
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static char *INET6_print(unsigned char *ptr)
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{
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static char name[80];
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inet_ntop(AF_INET6, (struct in6_addr *) ptr, name, 80);
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return name;
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}
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#endif /* KEEP_UNUSED */
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/* Display an Internet socket address. */
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/* dirty! struct sockaddr usually doesn't suffer for inet6 addresses, fst. */
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static char *INET6_sprint(struct sockaddr *sap, int numeric)
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{
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static char buff[128];
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if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
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return safe_strncpy(buff, _("[NONE SET]"), sizeof(buff));
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if (INET6_rresolve
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(buff, sizeof(buff), (struct sockaddr_in6 *) sap, numeric) != 0)
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return safe_strncpy(buff, _("[UNKNOWN]"), sizeof(buff));
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return (buff);
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}
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#ifdef KEEP_UNUSED
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static int INET6_getsock(char *bufp, struct sockaddr *sap)
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{
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struct sockaddr_in6 *sin6;
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sin6 = (struct sockaddr_in6 *) sap;
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sin6->sin6_family = AF_INET6;
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sin6->sin6_port = 0;
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if (inet_pton(AF_INET6, bufp, sin6->sin6_addr.s6_addr) <= 0)
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return (-1);
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return 16; /* ?;) */
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}
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static int INET6_input(int type, char *bufp, struct sockaddr *sap)
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{
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switch (type) {
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case 1:
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return (INET6_getsock(bufp, sap));
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default:
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return (INET6_resolve(bufp, (struct sockaddr_in6 *) sap));
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}
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}
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#endif /* KEEP_UNUSED */
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static struct aftype inet6_aftype = {
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"inet6", "IPv6", AF_INET6, sizeof(struct in6_addr),
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NULL /* UNUSED INET6_print */ , INET6_sprint,
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NULL /* UNUSED INET6_input */ , NULL /* UNUSED INET6_reserror */ ,
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NULL /*INET6_rprint */ , NULL /*INET6_rinput */ ,
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NULL /* UNUSED INET6_getnetmask */ ,
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-1,
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NULL
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};
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#endif /* HAVE_AFINET6 */
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/* Display an UNSPEC address. */
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static char *UNSPEC_print(unsigned char *ptr)
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{
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static char buff[sizeof(struct sockaddr) * 3 + 1];
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char *pos;
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unsigned int i;
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pos = buff;
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for (i = 0; i < sizeof(struct sockaddr); i++) {
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/* careful -- not every libc's sprintf returns # bytes written */
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sprintf(pos, "%02X-", (*ptr++ & 0377));
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pos += 3;
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}
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/* Erase trailing "-". Works as long as sizeof(struct sockaddr) != 0 */
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*--pos = '\0';
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return (buff);
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}
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/* Display an UNSPEC socket address. */
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static char *UNSPEC_sprint(struct sockaddr *sap, int numeric)
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{
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static char buf[64];
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if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
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return safe_strncpy(buf, _("[NONE SET]"), sizeof(buf));
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return (UNSPEC_print(sap->sa_data));
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}
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static struct aftype unspec_aftype = {
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"unspec", "UNSPEC", AF_UNSPEC, 0,
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UNSPEC_print, UNSPEC_sprint, NULL, NULL,
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NULL,
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};
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|
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static struct aftype *aftypes[] = {
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#if HAVE_AFUNIX
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&unix_aftype,
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#endif
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#if HAVE_AFINET
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&inet_aftype,
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#endif
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#if HAVE_AFINET6
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&inet6_aftype,
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#endif
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#if HAVE_AFAX25
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&ax25_aftype,
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#endif
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#if HAVE_AFNETROM
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&netrom_aftype,
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#endif
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|
#if HAVE_AFROSE
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&rose_aftype,
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|
#endif
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|
#if HAVE_AFIPX
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&ipx_aftype,
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#endif
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#if HAVE_AFATALK
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&ddp_aftype,
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#endif
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#if HAVE_AFECONET
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&ec_aftype,
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|
#endif
|
|
#if HAVE_AFASH
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|
&ash_aftype,
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|
#endif
|
|
#if HAVE_AFX25
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|
&x25_aftype,
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|
#endif
|
|
&unspec_aftype,
|
|
NULL
|
|
};
|
|
|
|
#ifdef KEEP_UNUSED
|
|
static short sVafinit = 0;
|
|
|
|
static void afinit()
|
|
{
|
|
unspec_aftype.title = _("UNSPEC");
|
|
#if HAVE_AFUNIX
|
|
unix_aftype.title = _("UNIX Domain");
|
|
#endif
|
|
#if HAVE_AFINET
|
|
inet_aftype.title = _("DARPA Internet");
|
|
#endif
|
|
#if HAVE_AFINET6
|
|
inet6_aftype.title = _("IPv6");
|
|
#endif
|
|
#if HAVE_AFAX25
|
|
ax25_aftype.title = _("AMPR AX.25");
|
|
#endif
|
|
#if HAVE_AFNETROM
|
|
netrom_aftype.title = _("AMPR NET/ROM");
|
|
#endif
|
|
#if HAVE_AFIPX
|
|
ipx_aftype.title = _("Novell IPX");
|
|
#endif
|
|
#if HAVE_AFATALK
|
|
ddp_aftype.title = _("Appletalk DDP");
|
|
#endif
|
|
#if HAVE_AFECONET
|
|
ec_aftype.title = _("Econet");
|
|
#endif
|
|
#if HAVE_AFX25
|
|
x25_aftype.title = _("CCITT X.25");
|
|
#endif
|
|
#if HAVE_AFROSE
|
|
rose_aftype.title = _("AMPR ROSE");
|
|
#endif
|
|
#if HAVE_AFASH
|
|
ash_aftype.title = _("Ash");
|
|
#endif
|
|
sVafinit = 1;
|
|
}
|
|
|
|
static int aftrans_opt(const char *arg)
|
|
{
|
|
struct aftrans_t *paft;
|
|
char *tmp1, *tmp2;
|
|
char buf[256];
|
|
|
|
safe_strncpy(buf, arg, sizeof(buf));
|
|
|
|
tmp1 = buf;
|
|
|
|
while (tmp1) {
|
|
|
|
tmp2 = strchr(tmp1, ',');
|
|
|
|
if (tmp2)
|
|
*(tmp2++) = '\0';
|
|
|
|
paft = aftrans;
|
|
for (paft = aftrans; paft->alias; paft++) {
|
|
if (strcmp(tmp1, paft->alias))
|
|
continue;
|
|
if (strlen(paft->name) + strlen(afname) + 1 >= sizeof(afname)) {
|
|
bb_error_msg(_("Too many address family arguments."));
|
|
return (0);
|
|
}
|
|
if (paft->flag)
|
|
(*paft->flag)++;
|
|
if (afname[0])
|
|
strcat(afname, ",");
|
|
strcat(afname, paft->name);
|
|
break;
|
|
}
|
|
if (!paft->alias) {
|
|
bb_error_msg(_("Unknown address family `%s'."), tmp1);
|
|
return (1);
|
|
}
|
|
tmp1 = tmp2;
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
/* set the default AF list from the program name or a constant value */
|
|
static void aftrans_def(char *tool, char *argv0, char *dflt)
|
|
{
|
|
char *tmp;
|
|
char *buf;
|
|
|
|
strcpy(afname, dflt);
|
|
|
|
if (!(tmp = strrchr(argv0, '/')))
|
|
tmp = argv0; /* no slash?! */
|
|
else
|
|
tmp++;
|
|
|
|
if (!(buf = strdup(tmp)))
|
|
return;
|
|
|
|
if (strlen(tool) >= strlen(tmp)) {
|
|
free(buf);
|
|
return;
|
|
}
|
|
tmp = buf + (strlen(tmp) - strlen(tool));
|
|
|
|
if (strcmp(tmp, tool) != 0) {
|
|
free(buf);
|
|
return;
|
|
}
|
|
*tmp = '\0';
|
|
if ((tmp = strchr(buf, '_')))
|
|
*tmp = '\0';
|
|
|
|
afname[0] = '\0';
|
|
if (aftrans_opt(buf))
|
|
strcpy(afname, buf);
|
|
|
|
free(buf);
|
|
}
|
|
|
|
/* Check our protocol family table for this family. */
|
|
static struct aftype *get_aftype(const char *name)
|
|
{
|
|
struct aftype **afp;
|
|
|
|
#ifdef KEEP_UNUSED
|
|
if (!sVafinit)
|
|
afinit();
|
|
#endif /* KEEP_UNUSED */
|
|
|
|
afp = aftypes;
|
|
while (*afp != NULL) {
|
|
if (!strcmp((*afp)->name, name))
|
|
return (*afp);
|
|
afp++;
|
|
}
|
|
if (strchr(name, ','))
|
|
bb_error_msg(_("Please don't supply more than one address family."));
|
|
return (NULL);
|
|
}
|
|
#endif /* KEEP_UNUSED */
|
|
|
|
/* Check our protocol family table for this family. */
|
|
static struct aftype *get_afntype(int af)
|
|
{
|
|
struct aftype **afp;
|
|
|
|
#ifdef KEEP_UNUSED
|
|
if (!sVafinit)
|
|
afinit();
|
|
#endif /* KEEP_UNUSED */
|
|
|
|
afp = aftypes;
|
|
while (*afp != NULL) {
|
|
if ((*afp)->af == af)
|
|
return (*afp);
|
|
afp++;
|
|
}
|
|
return (NULL);
|
|
}
|
|
|
|
/* Check our protocol family table for this family and return its socket */
|
|
static int get_socket_for_af(int af)
|
|
{
|
|
struct aftype **afp;
|
|
|
|
#ifdef KEEP_UNUSED
|
|
if (!sVafinit)
|
|
afinit();
|
|
#endif /* KEEP_UNUSED */
|
|
|
|
afp = aftypes;
|
|
while (*afp != NULL) {
|
|
if ((*afp)->af == af)
|
|
return (*afp)->fd;
|
|
afp++;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
#ifdef KEEP_UNUSED
|
|
/* type: 0=all, 1=getroute */
|
|
static void print_aflist(int type)
|
|
{
|
|
int count = 0;
|
|
char *txt;
|
|
struct aftype **afp;
|
|
|
|
#ifdef KEEP_UNUSED
|
|
if (!sVafinit)
|
|
afinit();
|
|
#endif /* KEEP_UNUSED */
|
|
|
|
afp = aftypes;
|
|
while (*afp != NULL) {
|
|
if ((type == 1 && ((*afp)->rprint == NULL)) || ((*afp)->af == 0)) {
|
|
afp++;
|
|
continue;
|
|
}
|
|
if ((count % 3) == 0)
|
|
fprintf(stderr, count ? "\n " : " ");
|
|
txt = (*afp)->name;
|
|
if (!txt)
|
|
txt = "..";
|
|
fprintf(stderr, "%s (%s) ", txt, _((*afp)->title));
|
|
count++;
|
|
afp++;
|
|
}
|
|
fprintf(stderr, "\n");
|
|
}
|
|
#endif /* KEEP_UNUSED */
|
|
|
|
struct user_net_device_stats {
|
|
unsigned long long rx_packets; /* total packets received */
|
|
unsigned long long tx_packets; /* total packets transmitted */
|
|
unsigned long long rx_bytes; /* total bytes received */
|
|
unsigned long long tx_bytes; /* total bytes transmitted */
|
|
unsigned long rx_errors; /* bad packets received */
|
|
unsigned long tx_errors; /* packet transmit problems */
|
|
unsigned long rx_dropped; /* no space in linux buffers */
|
|
unsigned long tx_dropped; /* no space available in linux */
|
|
unsigned long rx_multicast; /* multicast packets received */
|
|
unsigned long rx_compressed;
|
|
unsigned long tx_compressed;
|
|
unsigned long collisions;
|
|
|
|
/* detailed rx_errors: */
|
|
unsigned long rx_length_errors;
|
|
unsigned long rx_over_errors; /* receiver ring buff overflow */
|
|
unsigned long rx_crc_errors; /* recved pkt with crc error */
|
|
unsigned long rx_frame_errors; /* recv'd frame alignment error */
|
|
unsigned long rx_fifo_errors; /* recv'r fifo overrun */
|
|
unsigned long rx_missed_errors; /* receiver missed packet */
|
|
/* detailed tx_errors */
|
|
unsigned long tx_aborted_errors;
|
|
unsigned long tx_carrier_errors;
|
|
unsigned long tx_fifo_errors;
|
|
unsigned long tx_heartbeat_errors;
|
|
unsigned long tx_window_errors;
|
|
};
|
|
|
|
struct interface {
|
|
struct interface *next, *prev;
|
|
char name[IFNAMSIZ]; /* interface name */
|
|
short type; /* if type */
|
|
short flags; /* various flags */
|
|
int metric; /* routing metric */
|
|
int mtu; /* MTU value */
|
|
int tx_queue_len; /* transmit queue length */
|
|
struct ifmap map; /* hardware setup */
|
|
struct sockaddr addr; /* IP address */
|
|
struct sockaddr dstaddr; /* P-P IP address */
|
|
struct sockaddr broadaddr; /* IP broadcast address */
|
|
struct sockaddr netmask; /* IP network mask */
|
|
struct sockaddr ipxaddr_bb; /* IPX network address */
|
|
struct sockaddr ipxaddr_sn; /* IPX network address */
|
|
struct sockaddr ipxaddr_e3; /* IPX network address */
|
|
struct sockaddr ipxaddr_e2; /* IPX network address */
|
|
struct sockaddr ddpaddr; /* Appletalk DDP address */
|
|
struct sockaddr ecaddr; /* Econet address */
|
|
int has_ip;
|
|
int has_ipx_bb;
|
|
int has_ipx_sn;
|
|
int has_ipx_e3;
|
|
int has_ipx_e2;
|
|
int has_ax25;
|
|
int has_ddp;
|
|
int has_econet;
|
|
char hwaddr[32]; /* HW address */
|
|
int statistics_valid;
|
|
struct user_net_device_stats stats; /* statistics */
|
|
int keepalive; /* keepalive value for SLIP */
|
|
int outfill; /* outfill value for SLIP */
|
|
};
|
|
|
|
|
|
int interface_opt_a = 0; /* show all interfaces */
|
|
|
|
#ifdef KEEP_UNUSED
|
|
static int opt_i = 0; /* show the statistics */
|
|
static int opt_v = 0; /* debugging output flag */
|
|
|
|
static int addr_family = 0; /* currently selected AF */
|
|
#endif /* KEEP_UNUSED */
|
|
|
|
static struct interface *int_list, *int_last;
|
|
static int skfd = -1; /* generic raw socket desc. */
|
|
|
|
|
|
static int sockets_open(int family)
|
|
{
|
|
struct aftype **aft;
|
|
int sfd = -1;
|
|
static int force = -1;
|
|
|
|
if (force < 0) {
|
|
force = 0;
|
|
if (get_kernel_revision() < KRELEASE(2, 1, 0))
|
|
force = 1;
|
|
if (access("/proc/net", R_OK))
|
|
force = 1;
|
|
}
|
|
for (aft = aftypes; *aft; aft++) {
|
|
struct aftype *af = *aft;
|
|
int type = SOCK_DGRAM;
|
|
|
|
if (af->af == AF_UNSPEC)
|
|
continue;
|
|
if (family && family != af->af)
|
|
continue;
|
|
if (af->fd != -1) {
|
|
sfd = af->fd;
|
|
continue;
|
|
}
|
|
/* Check some /proc file first to not stress kmod */
|
|
if (!family && !force && af->flag_file) {
|
|
if (access(af->flag_file, R_OK))
|
|
continue;
|
|
}
|
|
#if HAVE_AFNETROM
|
|
if (af->af == AF_NETROM)
|
|
type = SOCK_SEQPACKET;
|
|
#endif
|
|
#if HAVE_AFX25
|
|
if (af->af == AF_X25)
|
|
type = SOCK_SEQPACKET;
|
|
#endif
|
|
af->fd = socket(af->af, type, 0);
|
|
if (af->fd >= 0)
|
|
sfd = af->fd;
|
|
}
|
|
if (sfd < 0) {
|
|
bb_error_msg(_("No usable address families found."));
|
|
}
|
|
return sfd;
|
|
}
|
|
|
|
/* like strcmp(), but knows about numbers */
|
|
static int nstrcmp(const char *a, const char *b)
|
|
{
|
|
const char *a_ptr = a;
|
|
const char *b_ptr = b;
|
|
|
|
while (*a == *b) {
|
|
if (*a == '\0') {
|
|
return 0;
|
|
}
|
|
if (!isdigit(*a) && isdigit(*(a+1))) {
|
|
a_ptr = a+1;
|
|
b_ptr = b+1;
|
|
}
|
|
a++;
|
|
b++;
|
|
}
|
|
|
|
if (isdigit(*a) && isdigit(*b)) {
|
|
return atoi(a_ptr) > atoi(b_ptr) ? 1 : -1;
|
|
}
|
|
return *a - *b;
|
|
}
|
|
|
|
static struct interface *add_interface(char *name)
|
|
{
|
|
struct interface *ife, **nextp, *new;
|
|
|
|
for (ife = int_last; ife; ife = ife->prev) {
|
|
int n = nstrcmp(ife->name, name);
|
|
|
|
if (n == 0)
|
|
return ife;
|
|
if (n < 0)
|
|
break;
|
|
}
|
|
new(new);
|
|
safe_strncpy(new->name, name, IFNAMSIZ);
|
|
nextp = ife ? &ife->next : &int_list;
|
|
new->prev = ife;
|
|
new->next = *nextp;
|
|
if (new->next)
|
|
new->next->prev = new;
|
|
else
|
|
int_last = new;
|
|
*nextp = new;
|
|
return new;
|
|
}
|
|
|
|
|
|
static int if_readconf(void)
|
|
{
|
|
int numreqs = 30;
|
|
struct ifconf ifc;
|
|
struct ifreq *ifr;
|
|
int n, err = -1;
|
|
int skfd2;
|
|
|
|
/* SIOCGIFCONF currently seems to only work properly on AF_INET sockets
|
|
(as of 2.1.128) */
|
|
skfd2 = get_socket_for_af(AF_INET);
|
|
if (skfd2 < 0) {
|
|
bb_perror_msg(("warning: no inet socket available"));
|
|
/* Try to soldier on with whatever socket we can get hold of. */
|
|
skfd2 = sockets_open(0);
|
|
if (skfd2 < 0)
|
|
return -1;
|
|
}
|
|
|
|
ifc.ifc_buf = NULL;
|
|
for (;;) {
|
|
ifc.ifc_len = sizeof(struct ifreq) * numreqs;
|
|
ifc.ifc_buf = xrealloc(ifc.ifc_buf, ifc.ifc_len);
|
|
|
|
if (ioctl(skfd2, SIOCGIFCONF, &ifc) < 0) {
|
|
perror("SIOCGIFCONF");
|
|
goto out;
|
|
}
|
|
if (ifc.ifc_len == sizeof(struct ifreq) * numreqs) {
|
|
/* assume it overflowed and try again */
|
|
numreqs += 10;
|
|
continue;
|
|
}
|
|
break;
|
|
}
|
|
|
|
ifr = ifc.ifc_req;
|
|
for (n = 0; n < ifc.ifc_len; n += sizeof(struct ifreq)) {
|
|
add_interface(ifr->ifr_name);
|
|
ifr++;
|
|
}
|
|
err = 0;
|
|
|
|
out:
|
|
free(ifc.ifc_buf);
|
|
return err;
|
|
}
|
|
|
|
static char *get_name(char *name, char *p)
|
|
{
|
|
/* Extract <name>[:<alias>] from nul-terminated p where p matches
|
|
<name>[:<alias>]: after leading whitespace.
|
|
If match is not made, set name empty and return unchanged p */
|
|
int namestart=0, nameend=0, aliasend;
|
|
while (isspace(p[namestart]))
|
|
namestart++;
|
|
nameend=namestart;
|
|
while (p[nameend] && p[nameend]!=':' && !isspace(p[nameend]))
|
|
nameend++;
|
|
if (p[nameend]==':') {
|
|
aliasend=nameend+1;
|
|
while (p[aliasend] && isdigit(p[aliasend]))
|
|
aliasend++;
|
|
if (p[aliasend]==':') {
|
|
nameend=aliasend;
|
|
}
|
|
if ((nameend-namestart)<IFNAMSIZ) {
|
|
memcpy(name,&p[namestart],nameend-namestart);
|
|
name[nameend-namestart]='\0';
|
|
p=&p[nameend];
|
|
} else {
|
|
/* Interface name too large */
|
|
name[0]='\0';
|
|
}
|
|
} else {
|
|
/* first ':' not found - return empty */
|
|
name[0]='\0';
|
|
}
|
|
return p + 1;
|
|
}
|
|
|
|
/* If scanf supports size qualifiers for %n conversions, then we can
|
|
* use a modified fmt that simply stores the position in the fields
|
|
* having no associated fields in the proc string. Of course, we need
|
|
* to zero them again when we're done. But that is smaller than the
|
|
* old approach of multiple scanf occurrences with large numbers of
|
|
* args. */
|
|
|
|
/* static const char *ss_fmt[] = { */
|
|
/* "%Ln%Lu%lu%lu%lu%lu%ln%ln%Ln%Lu%lu%lu%lu%lu%lu", */
|
|
/* "%Lu%Lu%lu%lu%lu%lu%ln%ln%Lu%Lu%lu%lu%lu%lu%lu", */
|
|
/* "%Lu%Lu%lu%lu%lu%lu%lu%lu%Lu%Lu%lu%lu%lu%lu%lu%lu" */
|
|
/* }; */
|
|
|
|
/* Lie about the size of the int pointed to for %n. */
|
|
#if INT_MAX == LONG_MAX
|
|
static const char *ss_fmt[] = {
|
|
"%n%Lu%u%u%u%u%n%n%n%Lu%u%u%u%u%u",
|
|
"%Lu%Lu%u%u%u%u%n%n%Lu%Lu%u%u%u%u%u",
|
|
"%Lu%Lu%u%u%u%u%u%u%Lu%Lu%u%u%u%u%u%u"
|
|
};
|
|
#else
|
|
static const char *ss_fmt[] = {
|
|
"%n%Lu%lu%lu%lu%lu%n%n%n%Lu%lu%lu%lu%lu%lu",
|
|
"%Lu%Lu%lu%lu%lu%lu%n%n%Lu%Lu%lu%lu%lu%lu%lu",
|
|
"%Lu%Lu%lu%lu%lu%lu%lu%lu%Lu%Lu%lu%lu%lu%lu%lu%lu"
|
|
};
|
|
|
|
#endif
|
|
|
|
static void get_dev_fields(char *bp, struct interface *ife, int procnetdev_vsn)
|
|
{
|
|
memset(&ife->stats, 0, sizeof(struct user_net_device_stats));
|
|
|
|
sscanf(bp, ss_fmt[procnetdev_vsn],
|
|
&ife->stats.rx_bytes, /* missing for 0 */
|
|
&ife->stats.rx_packets,
|
|
&ife->stats.rx_errors,
|
|
&ife->stats.rx_dropped,
|
|
&ife->stats.rx_fifo_errors,
|
|
&ife->stats.rx_frame_errors,
|
|
&ife->stats.rx_compressed, /* missing for <= 1 */
|
|
&ife->stats.rx_multicast, /* missing for <= 1 */
|
|
&ife->stats.tx_bytes, /* missing for 0 */
|
|
&ife->stats.tx_packets,
|
|
&ife->stats.tx_errors,
|
|
&ife->stats.tx_dropped,
|
|
&ife->stats.tx_fifo_errors,
|
|
&ife->stats.collisions,
|
|
&ife->stats.tx_carrier_errors,
|
|
&ife->stats.tx_compressed /* missing for <= 1 */
|
|
);
|
|
|
|
if (procnetdev_vsn <= 1) {
|
|
if (procnetdev_vsn == 0) {
|
|
ife->stats.rx_bytes = 0;
|
|
ife->stats.tx_bytes = 0;
|
|
}
|
|
ife->stats.rx_multicast = 0;
|
|
ife->stats.rx_compressed = 0;
|
|
ife->stats.tx_compressed = 0;
|
|
}
|
|
}
|
|
|
|
static inline int procnetdev_version(char *buf)
|
|
{
|
|
if (strstr(buf, "compressed"))
|
|
return 2;
|
|
if (strstr(buf, "bytes"))
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
static int if_readlist_proc(char *target)
|
|
{
|
|
static int proc_read;
|
|
FILE *fh;
|
|
char buf[512];
|
|
struct interface *ife;
|
|
int err, procnetdev_vsn;
|
|
|
|
if (proc_read)
|
|
return 0;
|
|
if (!target)
|
|
proc_read = 1;
|
|
|
|
fh = fopen(_PATH_PROCNET_DEV, "r");
|
|
if (!fh) {
|
|
bb_perror_msg(_("Warning: cannot open %s. Limited output."), _PATH_PROCNET_DEV);
|
|
return if_readconf();
|
|
}
|
|
fgets(buf, sizeof buf, fh); /* eat line */
|
|
fgets(buf, sizeof buf, fh);
|
|
|
|
procnetdev_vsn = procnetdev_version(buf);
|
|
|
|
err = 0;
|
|
while (fgets(buf, sizeof buf, fh)) {
|
|
char *s, name[128];
|
|
|
|
s = get_name(name, buf);
|
|
ife = add_interface(name);
|
|
get_dev_fields(s, ife, procnetdev_vsn);
|
|
ife->statistics_valid = 1;
|
|
if (target && !strcmp(target, name))
|
|
break;
|
|
}
|
|
if (ferror(fh)) {
|
|
perror(_PATH_PROCNET_DEV);
|
|
err = -1;
|
|
proc_read = 0;
|
|
}
|
|
fclose(fh);
|
|
return err;
|
|
}
|
|
|
|
static int if_readlist(void)
|
|
{
|
|
int err = if_readlist_proc(NULL);
|
|
|
|
if (!err)
|
|
err = if_readconf();
|
|
return err;
|
|
}
|
|
|
|
static int for_all_interfaces(int (*doit) (struct interface *, void *),
|
|
void *cookie)
|
|
{
|
|
struct interface *ife;
|
|
|
|
if (!int_list && (if_readlist() < 0))
|
|
return -1;
|
|
for (ife = int_list; ife; ife = ife->next) {
|
|
int err = doit(ife, cookie);
|
|
|
|
if (err)
|
|
return err;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* Support for fetching an IPX address */
|
|
|
|
#if HAVE_AFIPX
|
|
static int ipx_getaddr(int sock, int ft, struct ifreq *ifr)
|
|
{
|
|
((struct sockaddr_ipx *) &ifr->ifr_addr)->sipx_type = ft;
|
|
return ioctl(sock, SIOCGIFADDR, ifr);
|
|
}
|
|
#endif
|
|
|
|
|
|
/* Fetch the interface configuration from the kernel. */
|
|
static int if_fetch(struct interface *ife)
|
|
{
|
|
struct ifreq ifr;
|
|
int fd;
|
|
char *ifname = ife->name;
|
|
|
|
strcpy(ifr.ifr_name, ifname);
|
|
if (ioctl(skfd, SIOCGIFFLAGS, &ifr) < 0)
|
|
return (-1);
|
|
ife->flags = ifr.ifr_flags;
|
|
|
|
strcpy(ifr.ifr_name, ifname);
|
|
if (ioctl(skfd, SIOCGIFHWADDR, &ifr) < 0)
|
|
memset(ife->hwaddr, 0, 32);
|
|
else
|
|
memcpy(ife->hwaddr, ifr.ifr_hwaddr.sa_data, 8);
|
|
|
|
ife->type = ifr.ifr_hwaddr.sa_family;
|
|
|
|
strcpy(ifr.ifr_name, ifname);
|
|
if (ioctl(skfd, SIOCGIFMETRIC, &ifr) < 0)
|
|
ife->metric = 0;
|
|
else
|
|
ife->metric = ifr.ifr_metric;
|
|
|
|
strcpy(ifr.ifr_name, ifname);
|
|
if (ioctl(skfd, SIOCGIFMTU, &ifr) < 0)
|
|
ife->mtu = 0;
|
|
else
|
|
ife->mtu = ifr.ifr_mtu;
|
|
|
|
#ifdef HAVE_HWSLIP
|
|
if (ife->type == ARPHRD_SLIP || ife->type == ARPHRD_CSLIP ||
|
|
ife->type == ARPHRD_SLIP6 || ife->type == ARPHRD_CSLIP6 ||
|
|
ife->type == ARPHRD_ADAPT) {
|
|
#ifdef SIOCGOUTFILL
|
|
strcpy(ifr.ifr_name, ifname);
|
|
if (ioctl(skfd, SIOCGOUTFILL, &ifr) < 0)
|
|
ife->outfill = 0;
|
|
else
|
|
ife->outfill = (unsigned int) ifr.ifr_data;
|
|
#endif
|
|
#ifdef SIOCGKEEPALIVE
|
|
strcpy(ifr.ifr_name, ifname);
|
|
if (ioctl(skfd, SIOCGKEEPALIVE, &ifr) < 0)
|
|
ife->keepalive = 0;
|
|
else
|
|
ife->keepalive = (unsigned int) ifr.ifr_data;
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
strcpy(ifr.ifr_name, ifname);
|
|
if (ioctl(skfd, SIOCGIFMAP, &ifr) < 0)
|
|
memset(&ife->map, 0, sizeof(struct ifmap));
|
|
else
|
|
memcpy(&ife->map, &ifr.ifr_map, sizeof(struct ifmap));
|
|
|
|
strcpy(ifr.ifr_name, ifname);
|
|
if (ioctl(skfd, SIOCGIFMAP, &ifr) < 0)
|
|
memset(&ife->map, 0, sizeof(struct ifmap));
|
|
else
|
|
ife->map = ifr.ifr_map;
|
|
|
|
#ifdef HAVE_TXQUEUELEN
|
|
strcpy(ifr.ifr_name, ifname);
|
|
if (ioctl(skfd, SIOCGIFTXQLEN, &ifr) < 0)
|
|
ife->tx_queue_len = -1; /* unknown value */
|
|
else
|
|
ife->tx_queue_len = ifr.ifr_qlen;
|
|
#else
|
|
ife->tx_queue_len = -1; /* unknown value */
|
|
#endif
|
|
|
|
#if HAVE_AFINET
|
|
/* IPv4 address? */
|
|
fd = get_socket_for_af(AF_INET);
|
|
if (fd >= 0) {
|
|
strcpy(ifr.ifr_name, ifname);
|
|
ifr.ifr_addr.sa_family = AF_INET;
|
|
if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) {
|
|
ife->has_ip = 1;
|
|
ife->addr = ifr.ifr_addr;
|
|
strcpy(ifr.ifr_name, ifname);
|
|
if (ioctl(fd, SIOCGIFDSTADDR, &ifr) < 0)
|
|
memset(&ife->dstaddr, 0, sizeof(struct sockaddr));
|
|
else
|
|
ife->dstaddr = ifr.ifr_dstaddr;
|
|
|
|
strcpy(ifr.ifr_name, ifname);
|
|
if (ioctl(fd, SIOCGIFBRDADDR, &ifr) < 0)
|
|
memset(&ife->broadaddr, 0, sizeof(struct sockaddr));
|
|
else
|
|
ife->broadaddr = ifr.ifr_broadaddr;
|
|
|
|
strcpy(ifr.ifr_name, ifname);
|
|
if (ioctl(fd, SIOCGIFNETMASK, &ifr) < 0)
|
|
memset(&ife->netmask, 0, sizeof(struct sockaddr));
|
|
else
|
|
ife->netmask = ifr.ifr_netmask;
|
|
} else
|
|
memset(&ife->addr, 0, sizeof(struct sockaddr));
|
|
}
|
|
#endif
|
|
|
|
#if HAVE_AFATALK
|
|
/* DDP address maybe ? */
|
|
fd = get_socket_for_af(AF_APPLETALK);
|
|
if (fd >= 0) {
|
|
strcpy(ifr.ifr_name, ifname);
|
|
if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) {
|
|
ife->ddpaddr = ifr.ifr_addr;
|
|
ife->has_ddp = 1;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#if HAVE_AFIPX
|
|
/* Look for IPX addresses with all framing types */
|
|
fd = get_socket_for_af(AF_IPX);
|
|
if (fd >= 0) {
|
|
strcpy(ifr.ifr_name, ifname);
|
|
if (!ipx_getaddr(fd, IPX_FRAME_ETHERII, &ifr)) {
|
|
ife->has_ipx_bb = 1;
|
|
ife->ipxaddr_bb = ifr.ifr_addr;
|
|
}
|
|
strcpy(ifr.ifr_name, ifname);
|
|
if (!ipx_getaddr(fd, IPX_FRAME_SNAP, &ifr)) {
|
|
ife->has_ipx_sn = 1;
|
|
ife->ipxaddr_sn = ifr.ifr_addr;
|
|
}
|
|
strcpy(ifr.ifr_name, ifname);
|
|
if (!ipx_getaddr(fd, IPX_FRAME_8023, &ifr)) {
|
|
ife->has_ipx_e3 = 1;
|
|
ife->ipxaddr_e3 = ifr.ifr_addr;
|
|
}
|
|
strcpy(ifr.ifr_name, ifname);
|
|
if (!ipx_getaddr(fd, IPX_FRAME_8022, &ifr)) {
|
|
ife->has_ipx_e2 = 1;
|
|
ife->ipxaddr_e2 = ifr.ifr_addr;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#if HAVE_AFECONET
|
|
/* Econet address maybe? */
|
|
fd = get_socket_for_af(AF_ECONET);
|
|
if (fd >= 0) {
|
|
strcpy(ifr.ifr_name, ifname);
|
|
if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) {
|
|
ife->ecaddr = ifr.ifr_addr;
|
|
ife->has_econet = 1;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int do_if_fetch(struct interface *ife)
|
|
{
|
|
if (if_fetch(ife) < 0) {
|
|
char *errmsg;
|
|
|
|
if (errno == ENODEV) {
|
|
/* Give better error message for this case. */
|
|
errmsg = _("Device not found");
|
|
} else {
|
|
errmsg = strerror(errno);
|
|
}
|
|
bb_error_msg(_("%s: error fetching interface information: %s\n"),
|
|
ife->name, errmsg);
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* This structure defines hardware protocols and their handlers. */
|
|
struct hwtype {
|
|
const char *name;
|
|
const char *title;
|
|
int type;
|
|
int alen;
|
|
char *(*print) (unsigned char *);
|
|
int (*input) (char *, struct sockaddr *);
|
|
int (*activate) (int fd);
|
|
int suppress_null_addr;
|
|
};
|
|
|
|
static struct hwtype unspec_hwtype = {
|
|
"unspec", "UNSPEC", -1, 0,
|
|
UNSPEC_print, NULL, NULL
|
|
};
|
|
|
|
static struct hwtype loop_hwtype = {
|
|
"loop", "Local Loopback", ARPHRD_LOOPBACK, 0,
|
|
NULL, NULL, NULL
|
|
};
|
|
|
|
#if HAVE_HWETHER
|
|
#include <net/if_arp.h>
|
|
|
|
#if (__GLIBC__ >=2 && __GLIBC_MINOR >= 1) || defined(_NEWLIB_VERSION)
|
|
#include <net/ethernet.h>
|
|
#else
|
|
#include <linux/if_ether.h>
|
|
#endif
|
|
|
|
/* Display an Ethernet address in readable format. */
|
|
static char *pr_ether(unsigned char *ptr)
|
|
{
|
|
static char buff[64];
|
|
|
|
snprintf(buff, sizeof(buff), "%02X:%02X:%02X:%02X:%02X:%02X",
|
|
(ptr[0] & 0377), (ptr[1] & 0377), (ptr[2] & 0377),
|
|
(ptr[3] & 0377), (ptr[4] & 0377), (ptr[5] & 0377)
|
|
);
|
|
return (buff);
|
|
}
|
|
|
|
#ifdef KEEP_UNUSED
|
|
/* Input an Ethernet address and convert to binary. */
|
|
static int in_ether(char *bufp, struct sockaddr *sap)
|
|
{
|
|
unsigned char *ptr;
|
|
char c, *orig;
|
|
int i;
|
|
unsigned val;
|
|
|
|
sap->sa_family = ether_hwtype.type;
|
|
ptr = sap->sa_data;
|
|
|
|
i = 0;
|
|
orig = bufp;
|
|
while ((*bufp != '\0') && (i < ETH_ALEN)) {
|
|
val = 0;
|
|
c = *bufp++;
|
|
if (isdigit(c))
|
|
val = c - '0';
|
|
else if (c >= 'a' && c <= 'f')
|
|
val = c - 'a' + 10;
|
|
else if (c >= 'A' && c <= 'F')
|
|
val = c - 'A' + 10;
|
|
else {
|
|
#ifdef DEBUG
|
|
bb_error_msg(_("in_ether(%s): invalid ether address!\n"), orig);
|
|
#endif
|
|
errno = EINVAL;
|
|
return (-1);
|
|
}
|
|
val <<= 4;
|
|
c = *bufp;
|
|
if (isdigit(c))
|
|
val |= c - '0';
|
|
else if (c >= 'a' && c <= 'f')
|
|
val |= c - 'a' + 10;
|
|
else if (c >= 'A' && c <= 'F')
|
|
val |= c - 'A' + 10;
|
|
else if (c == ':' || c == 0)
|
|
val >>= 4;
|
|
else {
|
|
#ifdef DEBUG
|
|
bb_error_msg(_("in_ether(%s): invalid ether address!"), orig);
|
|
#endif
|
|
errno = EINVAL;
|
|
return (-1);
|
|
}
|
|
if (c != 0)
|
|
bufp++;
|
|
*ptr++ = (unsigned char) (val & 0377);
|
|
i++;
|
|
|
|
/* We might get a semicolon here - not required. */
|
|
if (*bufp == ':') {
|
|
#ifdef DEBUG
|
|
if (i == ETH_ALEN) {
|
|
bb_error_msg(_("in_ether(%s): trailing : ignored!"), orig);
|
|
}
|
|
#endif
|
|
bufp++;
|
|
}
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
/* That's it. Any trailing junk? */
|
|
if ((i == ETH_ALEN) && (*bufp != '\0')) {
|
|
bb_error_msg(_("in_ether(%s): trailing junk!"), orig);
|
|
errno = EINVAL;
|
|
return (-1);
|
|
}
|
|
bb_error_msg("in_ether(%s): %s", orig, pr_ether(sap->sa_data));
|
|
#endif
|
|
|
|
return (0);
|
|
}
|
|
#endif /* KEEP_UNUSED */
|
|
|
|
|
|
static struct hwtype ether_hwtype = {
|
|
"ether", "Ethernet", ARPHRD_ETHER, ETH_ALEN,
|
|
pr_ether, NULL /* UNUSED in_ether */ , NULL
|
|
};
|
|
|
|
|
|
#endif /* HAVE_HWETHER */
|
|
|
|
|
|
#if HAVE_HWPPP
|
|
|
|
#include <net/if_arp.h>
|
|
|
|
#ifdef KEEP_UNUSED
|
|
/* Start the PPP encapsulation on the file descriptor. */
|
|
static int do_ppp(int fd)
|
|
{
|
|
bb_error_msg(_("You cannot start PPP with this program."));
|
|
return -1;
|
|
}
|
|
#endif /* KEEP_UNUSED */
|
|
|
|
static struct hwtype ppp_hwtype = {
|
|
"ppp", "Point-Point Protocol", ARPHRD_PPP, 0,
|
|
NULL, NULL, NULL /* UNUSED do_ppp */ , 0
|
|
};
|
|
|
|
|
|
#endif /* HAVE_PPP */
|
|
|
|
static struct hwtype *hwtypes[] = {
|
|
|
|
&loop_hwtype,
|
|
|
|
#if HAVE_HWSLIP
|
|
&slip_hwtype,
|
|
&cslip_hwtype,
|
|
&slip6_hwtype,
|
|
&cslip6_hwtype,
|
|
&adaptive_hwtype,
|
|
#endif
|
|
#if HAVE_HWSTRIP
|
|
&strip_hwtype,
|
|
#endif
|
|
#if HAVE_HWASH
|
|
&ash_hwtype,
|
|
#endif
|
|
#if HAVE_HWETHER
|
|
ðer_hwtype,
|
|
#endif
|
|
#if HAVE_HWTR
|
|
&tr_hwtype,
|
|
#ifdef ARPHRD_IEEE802_TR
|
|
&tr_hwtype1,
|
|
#endif
|
|
#endif
|
|
#if HAVE_HWAX25
|
|
&ax25_hwtype,
|
|
#endif
|
|
#if HAVE_HWNETROM
|
|
&netrom_hwtype,
|
|
#endif
|
|
#if HAVE_HWROSE
|
|
&rose_hwtype,
|
|
#endif
|
|
#if HAVE_HWTUNNEL
|
|
&tunnel_hwtype,
|
|
#endif
|
|
#if HAVE_HWPPP
|
|
&ppp_hwtype,
|
|
#endif
|
|
#if HAVE_HWHDLCLAPB
|
|
&hdlc_hwtype,
|
|
&lapb_hwtype,
|
|
#endif
|
|
#if HAVE_HWARC
|
|
&arcnet_hwtype,
|
|
#endif
|
|
#if HAVE_HWFR
|
|
&dlci_hwtype,
|
|
&frad_hwtype,
|
|
#endif
|
|
#if HAVE_HWSIT
|
|
&sit_hwtype,
|
|
#endif
|
|
#if HAVE_HWFDDI
|
|
&fddi_hwtype,
|
|
#endif
|
|
#if HAVE_HWHIPPI
|
|
&hippi_hwtype,
|
|
#endif
|
|
#if HAVE_HWIRDA
|
|
&irda_hwtype,
|
|
#endif
|
|
#if HAVE_HWEC
|
|
&ec_hwtype,
|
|
#endif
|
|
#if HAVE_HWX25
|
|
&x25_hwtype,
|
|
#endif
|
|
&unspec_hwtype,
|
|
NULL
|
|
};
|
|
|
|
#ifdef KEEP_UNUSED
|
|
static short sVhwinit = 0;
|
|
|
|
static void hwinit()
|
|
{
|
|
loop_hwtype.title = _("Local Loopback");
|
|
unspec_hwtype.title = _("UNSPEC");
|
|
#if HAVE_HWSLIP
|
|
slip_hwtype.title = _("Serial Line IP");
|
|
cslip_hwtype.title = _("VJ Serial Line IP");
|
|
slip6_hwtype.title = _("6-bit Serial Line IP");
|
|
cslip6_hwtype.title = _("VJ 6-bit Serial Line IP");
|
|
adaptive_hwtype.title = _("Adaptive Serial Line IP");
|
|
#endif
|
|
#if HAVE_HWETHER
|
|
ether_hwtype.title = _("Ethernet");
|
|
#endif
|
|
#if HAVE_HWASH
|
|
ash_hwtype.title = _("Ash");
|
|
#endif
|
|
#if HAVE_HWFDDI
|
|
fddi_hwtype.title = _("Fiber Distributed Data Interface");
|
|
#endif
|
|
#if HAVE_HWHIPPI
|
|
hippi_hwtype.title = _("HIPPI");
|
|
#endif
|
|
#if HAVE_HWAX25
|
|
ax25_hwtype.title = _("AMPR AX.25");
|
|
#endif
|
|
#if HAVE_HWROSE
|
|
rose_hwtype.title = _("AMPR ROSE");
|
|
#endif
|
|
#if HAVE_HWNETROM
|
|
netrom_hwtype.title = _("AMPR NET/ROM");
|
|
#endif
|
|
#if HAVE_HWX25
|
|
x25_hwtype.title = _("generic X.25");
|
|
#endif
|
|
#if HAVE_HWTUNNEL
|
|
tunnel_hwtype.title = _("IPIP Tunnel");
|
|
#endif
|
|
#if HAVE_HWPPP
|
|
ppp_hwtype.title = _("Point-to-Point Protocol");
|
|
#endif
|
|
#if HAVE_HWHDLCLAPB
|
|
hdlc_hwtype.title = _("(Cisco)-HDLC");
|
|
lapb_hwtype.title = _("LAPB");
|
|
#endif
|
|
#if HAVE_HWARC
|
|
arcnet_hwtype.title = _("ARCnet");
|
|
#endif
|
|
#if HAVE_HWFR
|
|
dlci_hwtype.title = _("Frame Relay DLCI");
|
|
frad_hwtype.title = _("Frame Relay Access Device");
|
|
#endif
|
|
#if HAVE_HWSIT
|
|
sit_hwtype.title = _("IPv6-in-IPv4");
|
|
#endif
|
|
#if HAVE_HWIRDA
|
|
irda_hwtype.title = _("IrLAP");
|
|
#endif
|
|
#if HAVE_HWTR
|
|
tr_hwtype.title = _("16/4 Mbps Token Ring");
|
|
#ifdef ARPHRD_IEEE802_TR
|
|
tr_hwtype1.title = _("16/4 Mbps Token Ring (New)");
|
|
#endif
|
|
#endif
|
|
#if HAVE_HWEC
|
|
ec_hwtype.title = _("Econet");
|
|
#endif
|
|
sVhwinit = 1;
|
|
}
|
|
#endif /* KEEP_UNUSED */
|
|
|
|
#ifdef IFF_PORTSEL
|
|
#if 0
|
|
static const char * const if_port_text[][4] = {
|
|
/* Keep in step with <linux/netdevice.h> */
|
|
{"unknown", NULL, NULL, NULL},
|
|
{"10base2", "bnc", "coax", NULL},
|
|
{"10baseT", "utp", "tpe", NULL},
|
|
{"AUI", "thick", "db15", NULL},
|
|
{"100baseT", NULL, NULL, NULL},
|
|
{"100baseTX", NULL, NULL, NULL},
|
|
{"100baseFX", NULL, NULL, NULL},
|
|
{NULL, NULL, NULL, NULL},
|
|
};
|
|
#else
|
|
static const char * const if_port_text[] = {
|
|
/* Keep in step with <linux/netdevice.h> */
|
|
"unknown",
|
|
"10base2",
|
|
"10baseT",
|
|
"AUI",
|
|
"100baseT",
|
|
"100baseTX",
|
|
"100baseFX",
|
|
NULL
|
|
};
|
|
#endif
|
|
#endif
|
|
|
|
/* Check our hardware type table for this type. */
|
|
static struct hwtype *get_hwntype(int type)
|
|
{
|
|
struct hwtype **hwp;
|
|
|
|
#ifdef KEEP_UNUSED
|
|
if (!sVhwinit)
|
|
hwinit();
|
|
#endif /* KEEP_UNUSED */
|
|
|
|
hwp = hwtypes;
|
|
while (*hwp != NULL) {
|
|
if ((*hwp)->type == type)
|
|
return (*hwp);
|
|
hwp++;
|
|
}
|
|
return (NULL);
|
|
}
|
|
|
|
/* return 1 if address is all zeros */
|
|
static int hw_null_address(struct hwtype *hw, void *ap)
|
|
{
|
|
unsigned int i;
|
|
unsigned char *address = (unsigned char *) ap;
|
|
|
|
for (i = 0; i < hw->alen; i++)
|
|
if (address[i])
|
|
return 0;
|
|
return 1;
|
|
}
|
|
|
|
static const char TRext[] = "\0\0\0Ki\0Mi\0Gi\0Ti";
|
|
|
|
static void print_bytes_scaled(unsigned long long ull, const char *end)
|
|
{
|
|
unsigned long long int_part;
|
|
const char *ext;
|
|
unsigned int frac_part;
|
|
int i;
|
|
|
|
frac_part = 0;
|
|
ext = TRext;
|
|
int_part = ull;
|
|
i = 4;
|
|
do {
|
|
#if 0
|
|
/* This does correct rounding and is a little larger. But it
|
|
* uses KiB as the smallest displayed unit. */
|
|
if ((int_part < (1024*1024 - 51)) || !--i) {
|
|
i = 0;
|
|
int_part += 51; /* 1024*.05 = 51.2 */
|
|
frac_part = ((((unsigned int) int_part) & (1024-1)) * 10) / 1024;
|
|
}
|
|
int_part /= 1024;
|
|
ext += 3; /* KiB, MiB, GiB, TiB */
|
|
#else
|
|
if (int_part >= 1024) {
|
|
frac_part = ((((unsigned int) int_part) & (1024-1)) * 10) / 1024;
|
|
int_part /= 1024;
|
|
ext += 3; /* KiB, MiB, GiB, TiB */
|
|
}
|
|
--i;
|
|
#endif
|
|
} while (i);
|
|
|
|
printf("X bytes:%Lu (%Lu.%u %sB)%s", ull, int_part, frac_part, ext, end);
|
|
}
|
|
|
|
static const char * const ife_print_flags_strs[] = {
|
|
"UP ",
|
|
"BROADCAST ",
|
|
"DEBUG ",
|
|
"LOOPBACK ",
|
|
"POINTOPOINT ",
|
|
"NOTRAILERS ",
|
|
"RUNNING ",
|
|
"NOARP ",
|
|
"PROMISC ",
|
|
"ALLMULTI ",
|
|
"SLAVE ",
|
|
"MASTER ",
|
|
"MULTICAST ",
|
|
#ifdef HAVE_DYNAMIC
|
|
"DYNAMIC "
|
|
#endif
|
|
};
|
|
|
|
static const unsigned short ife_print_flags_mask[] = {
|
|
IFF_UP,
|
|
IFF_BROADCAST,
|
|
IFF_DEBUG,
|
|
IFF_LOOPBACK,
|
|
IFF_POINTOPOINT,
|
|
IFF_NOTRAILERS,
|
|
IFF_RUNNING,
|
|
IFF_NOARP,
|
|
IFF_PROMISC,
|
|
IFF_ALLMULTI,
|
|
IFF_SLAVE,
|
|
IFF_MASTER,
|
|
IFF_MULTICAST,
|
|
#ifdef HAVE_DYNAMIC
|
|
IFF_DYNAMIC
|
|
#endif
|
|
0
|
|
};
|
|
|
|
static void ife_print(struct interface *ptr)
|
|
{
|
|
struct aftype *ap;
|
|
struct hwtype *hw;
|
|
int hf;
|
|
int can_compress = 0;
|
|
|
|
#if HAVE_AFIPX
|
|
static struct aftype *ipxtype = NULL;
|
|
#endif
|
|
#if HAVE_AFECONET
|
|
static struct aftype *ectype = NULL;
|
|
#endif
|
|
#if HAVE_AFATALK
|
|
static struct aftype *ddptype = NULL;
|
|
#endif
|
|
#if HAVE_AFINET6
|
|
FILE *f;
|
|
char addr6[40], devname[20];
|
|
struct sockaddr_in6 sap;
|
|
int plen, scope, dad_status, if_idx;
|
|
char addr6p[8][5];
|
|
#endif
|
|
|
|
ap = get_afntype(ptr->addr.sa_family);
|
|
if (ap == NULL)
|
|
ap = get_afntype(0);
|
|
|
|
hf = ptr->type;
|
|
|
|
if (hf == ARPHRD_CSLIP || hf == ARPHRD_CSLIP6)
|
|
can_compress = 1;
|
|
|
|
hw = get_hwntype(hf);
|
|
if (hw == NULL)
|
|
hw = get_hwntype(-1);
|
|
|
|
printf(_("%-9.9s Link encap:%s "), ptr->name, _(hw->title));
|
|
/* For some hardware types (eg Ash, ATM) we don't print the
|
|
hardware address if it's null. */
|
|
if (hw->print != NULL && (!(hw_null_address(hw, ptr->hwaddr) &&
|
|
hw->suppress_null_addr)))
|
|
printf(_("HWaddr %s "), hw->print(ptr->hwaddr));
|
|
#ifdef IFF_PORTSEL
|
|
if (ptr->flags & IFF_PORTSEL) {
|
|
printf(_("Media:%s"), if_port_text[ptr->map.port] /* [0] */);
|
|
if (ptr->flags & IFF_AUTOMEDIA)
|
|
printf(_("(auto)"));
|
|
}
|
|
#endif
|
|
printf("\n");
|
|
|
|
#if HAVE_AFINET
|
|
if (ptr->has_ip) {
|
|
printf(_(" %s addr:%s "), ap->name,
|
|
ap->sprint(&ptr->addr, 1));
|
|
if (ptr->flags & IFF_POINTOPOINT) {
|
|
printf(_(" P-t-P:%s "), ap->sprint(&ptr->dstaddr, 1));
|
|
}
|
|
if (ptr->flags & IFF_BROADCAST) {
|
|
printf(_(" Bcast:%s "), ap->sprint(&ptr->broadaddr, 1));
|
|
}
|
|
printf(_(" Mask:%s\n"), ap->sprint(&ptr->netmask, 1));
|
|
}
|
|
#endif
|
|
|
|
#if HAVE_AFINET6
|
|
|
|
#define IPV6_ADDR_ANY 0x0000U
|
|
|
|
#define IPV6_ADDR_UNICAST 0x0001U
|
|
#define IPV6_ADDR_MULTICAST 0x0002U
|
|
#define IPV6_ADDR_ANYCAST 0x0004U
|
|
|
|
#define IPV6_ADDR_LOOPBACK 0x0010U
|
|
#define IPV6_ADDR_LINKLOCAL 0x0020U
|
|
#define IPV6_ADDR_SITELOCAL 0x0040U
|
|
|
|
#define IPV6_ADDR_COMPATv4 0x0080U
|
|
|
|
#define IPV6_ADDR_SCOPE_MASK 0x00f0U
|
|
|
|
#define IPV6_ADDR_MAPPED 0x1000U
|
|
#define IPV6_ADDR_RESERVED 0x2000U /* reserved address space */
|
|
|
|
if ((f = fopen(_PATH_PROCNET_IFINET6, "r")) != NULL) {
|
|
while (fscanf
|
|
(f, "%4s%4s%4s%4s%4s%4s%4s%4s %02x %02x %02x %02x %20s\n",
|
|
addr6p[0], addr6p[1], addr6p[2], addr6p[3], addr6p[4],
|
|
addr6p[5], addr6p[6], addr6p[7], &if_idx, &plen, &scope,
|
|
&dad_status, devname) != EOF) {
|
|
if (!strcmp(devname, ptr->name)) {
|
|
sprintf(addr6, "%s:%s:%s:%s:%s:%s:%s:%s",
|
|
addr6p[0], addr6p[1], addr6p[2], addr6p[3],
|
|
addr6p[4], addr6p[5], addr6p[6], addr6p[7]);
|
|
inet_pton(AF_INET6, addr6,
|
|
(struct sockaddr *) &sap.sin6_addr);
|
|
sap.sin6_family = AF_INET6;
|
|
printf(_(" inet6 addr: %s/%d"),
|
|
inet6_aftype.sprint((struct sockaddr *) &sap, 1),
|
|
plen);
|
|
printf(_(" Scope:"));
|
|
switch (scope & IPV6_ADDR_SCOPE_MASK) {
|
|
case 0:
|
|
printf(_("Global"));
|
|
break;
|
|
case IPV6_ADDR_LINKLOCAL:
|
|
printf(_("Link"));
|
|
break;
|
|
case IPV6_ADDR_SITELOCAL:
|
|
printf(_("Site"));
|
|
break;
|
|
case IPV6_ADDR_COMPATv4:
|
|
printf(_("Compat"));
|
|
break;
|
|
case IPV6_ADDR_LOOPBACK:
|
|
printf(_("Host"));
|
|
break;
|
|
default:
|
|
printf(_("Unknown"));
|
|
}
|
|
printf("\n");
|
|
}
|
|
}
|
|
fclose(f);
|
|
}
|
|
#endif
|
|
|
|
#if HAVE_AFIPX
|
|
if (ipxtype == NULL)
|
|
ipxtype = get_afntype(AF_IPX);
|
|
|
|
if (ipxtype != NULL) {
|
|
if (ptr->has_ipx_bb)
|
|
printf(_(" IPX/Ethernet II addr:%s\n"),
|
|
ipxtype->sprint(&ptr->ipxaddr_bb, 1));
|
|
if (ptr->has_ipx_sn)
|
|
printf(_(" IPX/Ethernet SNAP addr:%s\n"),
|
|
ipxtype->sprint(&ptr->ipxaddr_sn, 1));
|
|
if (ptr->has_ipx_e2)
|
|
printf(_(" IPX/Ethernet 802.2 addr:%s\n"),
|
|
ipxtype->sprint(&ptr->ipxaddr_e2, 1));
|
|
if (ptr->has_ipx_e3)
|
|
printf(_(" IPX/Ethernet 802.3 addr:%s\n"),
|
|
ipxtype->sprint(&ptr->ipxaddr_e3, 1));
|
|
}
|
|
#endif
|
|
|
|
#if HAVE_AFATALK
|
|
if (ddptype == NULL)
|
|
ddptype = get_afntype(AF_APPLETALK);
|
|
if (ddptype != NULL) {
|
|
if (ptr->has_ddp)
|
|
printf(_(" EtherTalk Phase 2 addr:%s\n"),
|
|
ddptype->sprint(&ptr->ddpaddr, 1));
|
|
}
|
|
#endif
|
|
|
|
#if HAVE_AFECONET
|
|
if (ectype == NULL)
|
|
ectype = get_afntype(AF_ECONET);
|
|
if (ectype != NULL) {
|
|
if (ptr->has_econet)
|
|
printf(_(" econet addr:%s\n"),
|
|
ectype->sprint(&ptr->ecaddr, 1));
|
|
}
|
|
#endif
|
|
|
|
printf(" ");
|
|
/* DONT FORGET TO ADD THE FLAGS IN ife_print_short, too */
|
|
|
|
if (ptr->flags == 0) {
|
|
printf(_("[NO FLAGS] "));
|
|
} else {
|
|
int i = 0;
|
|
do {
|
|
if (ptr->flags & ife_print_flags_mask[i]) {
|
|
printf(_(ife_print_flags_strs[i]));
|
|
}
|
|
} while (ife_print_flags_mask[++i]);
|
|
}
|
|
|
|
/* DONT FORGET TO ADD THE FLAGS IN ife_print_short */
|
|
printf(_(" MTU:%d Metric:%d"), ptr->mtu, ptr->metric ? ptr->metric : 1);
|
|
#ifdef SIOCSKEEPALIVE
|
|
if (ptr->outfill || ptr->keepalive)
|
|
printf(_(" Outfill:%d Keepalive:%d"), ptr->outfill, ptr->keepalive);
|
|
#endif
|
|
printf("\n");
|
|
|
|
/* If needed, display the interface statistics. */
|
|
|
|
if (ptr->statistics_valid) {
|
|
/* XXX: statistics are currently only printed for the primary address,
|
|
* not for the aliases, although strictly speaking they're shared
|
|
* by all addresses.
|
|
*/
|
|
printf(" ");
|
|
|
|
printf(_("RX packets:%Lu errors:%lu dropped:%lu overruns:%lu frame:%lu\n"),
|
|
ptr->stats.rx_packets, ptr->stats.rx_errors,
|
|
ptr->stats.rx_dropped, ptr->stats.rx_fifo_errors,
|
|
ptr->stats.rx_frame_errors);
|
|
if (can_compress)
|
|
printf(_(" compressed:%lu\n"),
|
|
ptr->stats.rx_compressed);
|
|
printf(" ");
|
|
printf(_("TX packets:%Lu errors:%lu dropped:%lu overruns:%lu carrier:%lu\n"),
|
|
ptr->stats.tx_packets, ptr->stats.tx_errors,
|
|
ptr->stats.tx_dropped, ptr->stats.tx_fifo_errors,
|
|
ptr->stats.tx_carrier_errors);
|
|
printf(_(" collisions:%lu "), ptr->stats.collisions);
|
|
if (can_compress)
|
|
printf(_("compressed:%lu "), ptr->stats.tx_compressed);
|
|
if (ptr->tx_queue_len != -1)
|
|
printf(_("txqueuelen:%d "), ptr->tx_queue_len);
|
|
printf("\n R");
|
|
print_bytes_scaled(ptr->stats.rx_bytes, " T");
|
|
print_bytes_scaled(ptr->stats.tx_bytes, "\n");
|
|
|
|
}
|
|
|
|
if ((ptr->map.irq || ptr->map.mem_start || ptr->map.dma ||
|
|
ptr->map.base_addr)) {
|
|
printf(" ");
|
|
if (ptr->map.irq)
|
|
printf(_("Interrupt:%d "), ptr->map.irq);
|
|
if (ptr->map.base_addr >= 0x100) /* Only print devices using it for
|
|
I/O maps */
|
|
printf(_("Base address:0x%lx "),
|
|
(unsigned long) ptr->map.base_addr);
|
|
if (ptr->map.mem_start) {
|
|
printf(_("Memory:%lx-%lx "), ptr->map.mem_start,
|
|
ptr->map.mem_end);
|
|
}
|
|
if (ptr->map.dma)
|
|
printf(_("DMA chan:%x "), ptr->map.dma);
|
|
printf("\n");
|
|
}
|
|
printf("\n");
|
|
}
|
|
|
|
|
|
static int do_if_print(struct interface *ife, void *cookie)
|
|
{
|
|
int *opt_a = (int *) cookie;
|
|
int res;
|
|
|
|
res = do_if_fetch(ife);
|
|
if (res >= 0) {
|
|
if ((ife->flags & IFF_UP) || *opt_a)
|
|
ife_print(ife);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
static struct interface *lookup_interface(char *name)
|
|
{
|
|
struct interface *ife = NULL;
|
|
|
|
if (if_readlist_proc(name) < 0)
|
|
return NULL;
|
|
ife = add_interface(name);
|
|
return ife;
|
|
}
|
|
|
|
/* for ipv4 add/del modes */
|
|
static int if_print(char *ifname)
|
|
{
|
|
int res;
|
|
|
|
if (!ifname) {
|
|
res = for_all_interfaces(do_if_print, &interface_opt_a);
|
|
} else {
|
|
struct interface *ife;
|
|
|
|
ife = lookup_interface(ifname);
|
|
res = do_if_fetch(ife);
|
|
if (res >= 0)
|
|
ife_print(ife);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
int display_interfaces(char *ifname)
|
|
{
|
|
int status;
|
|
|
|
/* Create a channel to the NET kernel. */
|
|
if ((skfd = sockets_open(0)) < 0) {
|
|
bb_perror_msg_and_die("socket");
|
|
}
|
|
|
|
/* Do we have to show the current setup? */
|
|
status = if_print(ifname);
|
|
close(skfd);
|
|
exit(status < 0);
|
|
}
|