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https://github.com/sheumann/hush.git
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Add in ifconfig and route
This commit is contained in:
Eric Andersen
parent
88a5ceb450
commit
ec45595300
2
Config.h
2
Config.h
@ -47,6 +47,7 @@
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//#define BB_HOSTID
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//#define BB_HOSTNAME
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#define BB_ID
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//#define BB_IFCONFIG
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#define BB_INIT
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//#define BB_INSMOD
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#define BB_KILL
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@ -87,6 +88,7 @@
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#define BB_RM
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#define BB_RMDIR
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//#define BB_RMMOD
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//#define BB_ROUTE
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//#define BB_RPMUNPACK
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#define BB_SED
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//#define BB_SETKEYCODES
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@ -158,6 +158,9 @@ const struct BB_applet applets[] = {
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#ifdef BB_ID
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APPLET("id", id_main, _BB_DIR_USR_BIN, id_usage)
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#endif
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#ifdef BB_IFCONFIG
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APPLET("ifconfig", ifconfig_main, _BB_DIR_SBIN, ifconfig_usage)
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#endif
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#ifdef BB_INIT
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APPLET_NOUSAGE("init", init_main, _BB_DIR_SBIN)
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#endif
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@ -284,6 +287,9 @@ const struct BB_applet applets[] = {
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#ifdef BB_RMMOD
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APPLET("rmmod", rmmod_main, _BB_DIR_SBIN, rmmod_usage)
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#endif
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#ifdef BB_ROUTE
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APPLET("route", route_main, _BB_DIR_USR_BIN, route_usage)
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#endif
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#ifdef BB_RPMUNPACK
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APPLET("rpmunpack", rpmunpack_main, _BB_DIR_USR_BIN, rpmunpack_usage)
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#endif
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@ -556,6 +556,26 @@ const char id_usage[] =
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;
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#endif
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#if defined BB_IFCONFIG
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const char ifconfig_usage[] =
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"ifconfig [-a] [-i] [-v] <interface> [<address>]"
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#ifndef BB_FEATURE_TRIVIAL_HELP
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"\n\nconfigure a network interface\n\n"
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"Options:\n"
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" [[-]broadcast [<address>]] [[-]pointopoint [<address>]]\n"
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" [netmask <address>] [dstaddr <address>] [tunnel <adress>]\n"
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#ifdef SIOCSKEEPALIVE
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" [outfill <NN>] [keepalive <NN>]\n"
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#endif
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" [hw ether <address>] [metric <NN>] [mtu <NN>]\n"
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" [[-]trailers] [[-]arp] [[-]allmulti]\n"
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" [multicast] [[-]promisc]\n"
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" [mem_start <NN>] [io_addr <NN>] [irq <NN>] [media <type>]\n"
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" [up|down] ..."
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#endif
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;
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#endif
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#if defined BB_INSMOD
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const char insmod_usage[] =
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"insmod [OPTION]... MODULE [symbol=value]..."
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@ -1144,6 +1164,15 @@ const char rmmod_usage[] =
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;
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#endif
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#if defined BB_ROUTE
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const char route_usage[] =
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"route [{add|del|flush}]"
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#ifndef BB_FEATURE_TRIVIAL_HELP
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"\n\nEdit the kernel's routing tables"
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#endif
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;
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#endif
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#if defined BB_RPMUNPACK
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const char rpmunpack_usage[] =
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"rpmunpack < package.rpm | gunzip | cpio -idmuv"
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@ -161,6 +161,7 @@ extern void *xcalloc(size_t nmemb, size_t size);
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extern char *xstrdup (const char *s);
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#endif
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extern char *xstrndup (const char *s, int n);
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extern char * safe_strncpy(char *dst, const char *src, size_t size);
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struct suffix_mult {
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char *suffix;
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476
ifconfig.c
Normal file
476
ifconfig.c
Normal file
@ -0,0 +1,476 @@
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/* ifconfig
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*
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* Similar to the standard Unix ifconfig, but with only the necessary
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* parts for AF_INET, and without any printing of if info (for now).
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*
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* Bjorn Wesen, Axis Communications AB
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*
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*
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* Authors of the original ifconfig was:
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* Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org>
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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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* $Id: ifconfig.c,v 1.1 2001/02/14 08:11:27 andersen Exp $
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*
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*/
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#include "busybox.h"
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#include <sys/types.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <string.h> // strcmp and friends
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#include <ctype.h> // isdigit and friends
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <net/if.h>
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#include <net/if_arp.h>
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#include <linux/if_ether.h>
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static int sockfd; /* socket fd we use to manipulate stuff with */
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/* print usage and exit */
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#define _(x) x
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/* Set a certain interface flag. */
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static int
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set_flag(char *ifname, short flag)
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{
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struct ifreq ifr;
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strcpy(ifr.ifr_name, ifname);
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if (ioctl(sockfd, SIOCGIFFLAGS, &ifr) < 0) {
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perror("SIOCGIFFLAGS");
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return (-1);
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}
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strcpy(ifr.ifr_name, ifname);
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ifr.ifr_flags |= flag;
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if (ioctl(sockfd, SIOCSIFFLAGS, &ifr) < 0) {
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perror("SIOCSIFFLAGS");
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return -1;
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}
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return (0);
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}
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/* Clear a certain interface flag. */
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static int
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clr_flag(char *ifname, short flag)
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{
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struct ifreq ifr;
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strcpy(ifr.ifr_name, ifname);
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if (ioctl(sockfd, SIOCGIFFLAGS, &ifr) < 0) {
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perror("SIOCGIFFLAGS");
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return -1;
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}
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strcpy(ifr.ifr_name, ifname);
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ifr.ifr_flags &= ~flag;
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if (ioctl(sockfd, SIOCSIFFLAGS, &ifr) < 0) {
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perror("SIOCSIFFLAGS");
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return -1;
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}
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return (0);
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}
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/* resolve XXX.YYY.ZZZ.QQQ -> binary */
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static int
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INET_resolve(char *name, struct sockaddr_in *sin)
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{
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sin->sin_family = AF_INET;
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sin->sin_port = 0;
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/* Default is special, meaning 0.0.0.0. */
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if (!strcmp(name, "default")) {
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sin->sin_addr.s_addr = INADDR_ANY;
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return (1);
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}
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/* Look to see if it's a dotted quad. */
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if (inet_aton(name, &sin->sin_addr)) {
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return 0;
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}
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/* guess not.. */
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return -1;
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}
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/* Input an Ethernet address and convert to binary. */
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static int
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in_ether(char *bufp, struct sockaddr *sap)
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{
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unsigned char *ptr;
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char c, *orig;
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int i;
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unsigned val;
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sap->sa_family = ARPHRD_ETHER;
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ptr = sap->sa_data;
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i = 0;
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orig = bufp;
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while ((*bufp != '\0') && (i < ETH_ALEN)) {
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val = 0;
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c = *bufp++;
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if (isdigit(c))
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val = c - '0';
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else if (c >= 'a' && c <= 'f')
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val = c - 'a' + 10;
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else if (c >= 'A' && c <= 'F')
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val = c - 'A' + 10;
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else {
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#ifdef DEBUG
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fprintf(stderr,
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_("in_ether(%s): invalid ether address!\n"),
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orig);
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#endif
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errno = EINVAL;
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return (-1);
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}
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val <<= 4;
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c = *bufp;
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if (isdigit(c))
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val |= c - '0';
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else if (c >= 'a' && c <= 'f')
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val |= c - 'a' + 10;
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else if (c >= 'A' && c <= 'F')
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val |= c - 'A' + 10;
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else if (c == ':' || c == 0)
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val >>= 4;
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else {
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#ifdef DEBUG
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fprintf(stderr,
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_("in_ether(%s): invalid ether address!\n"),
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orig);
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#endif
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errno = EINVAL;
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return (-1);
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}
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if (c != 0)
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bufp++;
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*ptr++ = (unsigned char) (val & 0377);
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i++;
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/* We might get a semicolon here - not required. */
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if (*bufp == ':')
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bufp++;
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}
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if(i != ETH_ALEN) {
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errno = EINVAL;
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return -1;
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}
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return 0;
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}
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int ifconfig_main(int argc, char **argv)
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{
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struct ifreq ifr;
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struct sockaddr_in sa;
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struct sockaddr sa2;
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char **spp;
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int goterr = 0;
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int r, didnetmask = 0;
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char host[128];
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if(argc < 2) {
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usage(ifconfig_usage);
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}
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/* Create a channel to the NET kernel. */
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if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
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perror("socket");
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exit(1);
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}
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/* skip argv[0] */
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argc--;
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argv++;
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spp = argv;
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/* get interface name */
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safe_strncpy(ifr.ifr_name, *spp++, IFNAMSIZ);
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/* Process the remaining arguments. */
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while (*spp != (char *) NULL) {
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if (!strcmp(*spp, "arp")) {
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goterr |= clr_flag(ifr.ifr_name, IFF_NOARP);
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spp++;
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continue;
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}
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if (!strcmp(*spp, "-arp")) {
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goterr |= set_flag(ifr.ifr_name, IFF_NOARP);
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spp++;
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continue;
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}
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if (!strcmp(*spp, "trailers")) {
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goterr |= clr_flag(ifr.ifr_name, IFF_NOTRAILERS);
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spp++;
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continue;
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}
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if (!strcmp(*spp, "-trailers")) {
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goterr |= set_flag(ifr.ifr_name, IFF_NOTRAILERS);
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spp++;
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continue;
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}
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if (!strcmp(*spp, "promisc")) {
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goterr |= set_flag(ifr.ifr_name, IFF_PROMISC);
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spp++;
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continue;
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}
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if (!strcmp(*spp, "-promisc")) {
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goterr |= clr_flag(ifr.ifr_name, IFF_PROMISC);
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spp++;
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continue;
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}
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if (!strcmp(*spp, "multicast")) {
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goterr |= set_flag(ifr.ifr_name, IFF_MULTICAST);
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spp++;
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continue;
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}
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if (!strcmp(*spp, "-multicast")) {
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goterr |= clr_flag(ifr.ifr_name, IFF_MULTICAST);
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spp++;
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continue;
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}
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if (!strcmp(*spp, "allmulti")) {
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goterr |= set_flag(ifr.ifr_name, IFF_ALLMULTI);
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spp++;
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continue;
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}
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if (!strcmp(*spp, "-allmulti")) {
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goterr |= clr_flag(ifr.ifr_name, IFF_ALLMULTI);
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spp++;
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continue;
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}
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if (!strcmp(*spp, "up")) {
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goterr |= set_flag(ifr.ifr_name, (IFF_UP | IFF_RUNNING));
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spp++;
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continue;
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}
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if (!strcmp(*spp, "down")) {
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goterr |= clr_flag(ifr.ifr_name, IFF_UP);
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spp++;
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continue;
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}
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if (!strcmp(*spp, "metric")) {
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if (*++spp == NULL)
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usage(ifconfig_usage);
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ifr.ifr_metric = atoi(*spp);
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if (ioctl(sockfd, SIOCSIFMETRIC, &ifr) < 0) {
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fprintf(stderr, "SIOCSIFMETRIC: %s\n", strerror(errno));
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goterr++;
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}
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spp++;
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continue;
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}
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if (!strcmp(*spp, "mtu")) {
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if (*++spp == NULL)
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usage(ifconfig_usage);
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ifr.ifr_mtu = atoi(*spp);
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if (ioctl(sockfd, SIOCSIFMTU, &ifr) < 0) {
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fprintf(stderr, "SIOCSIFMTU: %s\n", strerror(errno));
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goterr++;
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}
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spp++;
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continue;
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}
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#ifdef SIOCSKEEPALIVE
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if (!strcmp(*spp, "keepalive")) {
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if (*++spp == NULL)
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usage(ifconfig_usage);
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ifr.ifr_data = (caddr_t) atoi(*spp);
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if (ioctl(sockfd, SIOCSKEEPALIVE, &ifr) < 0) {
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fprintf(stderr, "SIOCSKEEPALIVE: %s\n", strerror(errno));
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goterr++;
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}
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spp++;
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continue;
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}
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#endif
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#ifdef SIOCSOUTFILL
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if (!strcmp(*spp, "outfill")) {
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if (*++spp == NULL)
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usage(ifconfig_usage);
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ifr.ifr_data = (caddr_t) atoi(*spp);
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if (ioctl(sockfd, SIOCSOUTFILL, &ifr) < 0) {
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fprintf(stderr, "SIOCSOUTFILL: %s\n", strerror(errno));
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goterr++;
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}
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spp++;
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continue;
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}
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#endif
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if (!strcmp(*spp, "-broadcast")) {
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goterr |= clr_flag(ifr.ifr_name, IFF_BROADCAST);
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spp++;
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continue;
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}
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if (!strcmp(*spp, "broadcast")) {
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if (*++spp != NULL) {
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safe_strncpy(host, *spp, (sizeof host));
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if (INET_resolve(host, &sa) < 0) {
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goterr++;
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spp++;
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continue;
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}
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memcpy((char *) &ifr.ifr_broadaddr,
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(char *) &sa,
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sizeof(struct sockaddr));
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if (ioctl(sockfd, SIOCSIFBRDADDR, &ifr) < 0) {
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perror("SIOCSIFBRDADDR");
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goterr++;
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}
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spp++;
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}
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goterr |= set_flag(ifr.ifr_name, IFF_BROADCAST);
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continue;
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}
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if (!strcmp(*spp, "dstaddr")) {
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if (*++spp == NULL)
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usage(ifconfig_usage);
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safe_strncpy(host, *spp, (sizeof host));
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if (INET_resolve(host, &sa) < 0) {
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goterr++;
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spp++;
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continue;
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}
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memcpy((char *) &ifr.ifr_dstaddr, (char *) &sa,
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sizeof(struct sockaddr));
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if (ioctl(sockfd, SIOCSIFDSTADDR, &ifr) < 0) {
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fprintf(stderr, "SIOCSIFDSTADDR: %s\n",
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strerror(errno));
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goterr++;
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}
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spp++;
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continue;
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}
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if (!strcmp(*spp, "netmask")) {
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if (*++spp == NULL || didnetmask)
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usage(ifconfig_usage);
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safe_strncpy(host, *spp, (sizeof host));
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if (INET_resolve(host, &sa) < 0) {
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goterr++;
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spp++;
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continue;
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}
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didnetmask++;
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memcpy((char *) &ifr.ifr_netmask, (char *) &sa,
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sizeof(struct sockaddr));
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if (ioctl(sockfd, SIOCSIFNETMASK, &ifr) < 0) {
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perror("SIOCSIFNETMASK");
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goterr++;
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}
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spp++;
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continue;
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}
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if (!strcmp(*spp, "-pointopoint")) {
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goterr |= clr_flag(ifr.ifr_name, IFF_POINTOPOINT);
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spp++;
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continue;
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}
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if (!strcmp(*spp, "pointopoint")) {
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if (*(spp + 1) != NULL) {
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spp++;
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safe_strncpy(host, *spp, (sizeof host));
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if (INET_resolve(host, &sa)) {
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goterr++;
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spp++;
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continue;
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}
|
||||
memcpy((char *) &ifr.ifr_dstaddr, (char *) &sa,
|
||||
sizeof(struct sockaddr));
|
||||
if (ioctl(sockfd, SIOCSIFDSTADDR, &ifr) < 0) {
|
||||
perror("SIOCSIFDSTADDR");
|
||||
goterr++;
|
||||
}
|
||||
}
|
||||
goterr |= set_flag(ifr.ifr_name, IFF_POINTOPOINT);
|
||||
spp++;
|
||||
continue;
|
||||
};
|
||||
|
||||
if (!strcmp(*spp, "hw")) {
|
||||
if (*++spp == NULL || strcmp("ether", *spp)) {
|
||||
usage(ifconfig_usage);
|
||||
}
|
||||
|
||||
if (*++spp == NULL) {
|
||||
/* silently ignore it if no address */
|
||||
continue;
|
||||
}
|
||||
|
||||
safe_strncpy(host, *spp, (sizeof host));
|
||||
if (in_ether(host, &sa2) < 0) {
|
||||
fprintf(stderr, "invalid hw-addr %s\n", host);
|
||||
goterr++;
|
||||
spp++;
|
||||
continue;
|
||||
}
|
||||
memcpy((char *) &ifr.ifr_hwaddr, (char *) &sa2,
|
||||
sizeof(struct sockaddr));
|
||||
if (ioctl(sockfd, SIOCSIFHWADDR, &ifr) < 0) {
|
||||
perror("SIOCSIFHWADDR");
|
||||
goterr++;
|
||||
}
|
||||
spp++;
|
||||
continue;
|
||||
}
|
||||
|
||||
/* If the next argument is a valid hostname, assume OK. */
|
||||
safe_strncpy(host, *spp, (sizeof host));
|
||||
|
||||
if (INET_resolve(host, &sa) < 0) {
|
||||
usage(ifconfig_usage);
|
||||
}
|
||||
memcpy((char *) &ifr.ifr_addr,
|
||||
(char *) &sa, sizeof(struct sockaddr));
|
||||
|
||||
r = ioctl(sockfd, SIOCSIFADDR, &ifr);
|
||||
|
||||
if (r < 0) {
|
||||
perror("SIOCSIFADDR");
|
||||
goterr++;
|
||||
}
|
||||
|
||||
/*
|
||||
* Don't do the set_flag() if the address is an alias with a - at the
|
||||
* end, since it's deleted already! - Roman
|
||||
*
|
||||
* Should really use regex.h here, not sure though how well it'll go
|
||||
* with the cross-platform support etc.
|
||||
*/
|
||||
{
|
||||
char *ptr;
|
||||
short int found_colon = 0;
|
||||
for (ptr = ifr.ifr_name; *ptr; ptr++ )
|
||||
if (*ptr == ':') found_colon++;
|
||||
|
||||
if (!(found_colon && *(ptr - 1) == '-'))
|
||||
goterr |= set_flag(ifr.ifr_name, (IFF_UP | IFF_RUNNING));
|
||||
}
|
||||
|
||||
spp++;
|
||||
|
||||
} /* end of while-loop */
|
||||
|
||||
exit(0);
|
||||
}
|
||||
|
||||
@ -158,6 +158,9 @@ const struct BB_applet applets[] = {
|
||||
#ifdef BB_ID
|
||||
APPLET("id", id_main, _BB_DIR_USR_BIN, id_usage)
|
||||
#endif
|
||||
#ifdef BB_IFCONFIG
|
||||
APPLET("ifconfig", ifconfig_main, _BB_DIR_SBIN, ifconfig_usage)
|
||||
#endif
|
||||
#ifdef BB_INIT
|
||||
APPLET_NOUSAGE("init", init_main, _BB_DIR_SBIN)
|
||||
#endif
|
||||
@ -284,6 +287,9 @@ const struct BB_applet applets[] = {
|
||||
#ifdef BB_RMMOD
|
||||
APPLET("rmmod", rmmod_main, _BB_DIR_SBIN, rmmod_usage)
|
||||
#endif
|
||||
#ifdef BB_ROUTE
|
||||
APPLET("route", route_main, _BB_DIR_USR_BIN, route_usage)
|
||||
#endif
|
||||
#ifdef BB_RPMUNPACK
|
||||
APPLET("rpmunpack", rpmunpack_main, _BB_DIR_USR_BIN, rpmunpack_usage)
|
||||
#endif
|
||||
|
||||
@ -161,6 +161,7 @@ extern void *xcalloc(size_t nmemb, size_t size);
|
||||
extern char *xstrdup (const char *s);
|
||||
#endif
|
||||
extern char *xstrndup (const char *s, int n);
|
||||
extern char * safe_strncpy(char *dst, const char *src, size_t size);
|
||||
|
||||
struct suffix_mult {
|
||||
char *suffix;
|
||||
|
||||
476
networking/ifconfig.c
Normal file
476
networking/ifconfig.c
Normal file
@ -0,0 +1,476 @@
|
||||
/* ifconfig
|
||||
*
|
||||
* Similar to the standard Unix ifconfig, but with only the necessary
|
||||
* parts for AF_INET, and without any printing of if info (for now).
|
||||
*
|
||||
* Bjorn Wesen, Axis Communications AB
|
||||
*
|
||||
*
|
||||
* Authors of the original ifconfig was:
|
||||
* Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org>
|
||||
*
|
||||
* This program is free software; you can redistribute it
|
||||
* and/or modify it under the terms of the GNU General
|
||||
* Public License as published by the Free Software
|
||||
* Foundation; either version 2 of the License, or (at
|
||||
* your option) any later version.
|
||||
*
|
||||
* $Id: ifconfig.c,v 1.1 2001/02/14 08:11:27 andersen Exp $
|
||||
*
|
||||
*/
|
||||
|
||||
#include "busybox.h"
|
||||
#include <sys/types.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <errno.h>
|
||||
#include <string.h> // strcmp and friends
|
||||
#include <ctype.h> // isdigit and friends
|
||||
#include <sys/socket.h>
|
||||
#include <sys/ioctl.h>
|
||||
#include <netinet/in.h>
|
||||
#include <arpa/inet.h>
|
||||
#include <net/if.h>
|
||||
#include <net/if_arp.h>
|
||||
#include <linux/if_ether.h>
|
||||
|
||||
static int sockfd; /* socket fd we use to manipulate stuff with */
|
||||
|
||||
/* print usage and exit */
|
||||
|
||||
#define _(x) x
|
||||
|
||||
/* Set a certain interface flag. */
|
||||
static int
|
||||
set_flag(char *ifname, short flag)
|
||||
{
|
||||
struct ifreq ifr;
|
||||
|
||||
strcpy(ifr.ifr_name, ifname);
|
||||
if (ioctl(sockfd, SIOCGIFFLAGS, &ifr) < 0) {
|
||||
perror("SIOCGIFFLAGS");
|
||||
return (-1);
|
||||
}
|
||||
strcpy(ifr.ifr_name, ifname);
|
||||
ifr.ifr_flags |= flag;
|
||||
if (ioctl(sockfd, SIOCSIFFLAGS, &ifr) < 0) {
|
||||
perror("SIOCSIFFLAGS");
|
||||
return -1;
|
||||
}
|
||||
return (0);
|
||||
}
|
||||
|
||||
|
||||
/* Clear a certain interface flag. */
|
||||
static int
|
||||
clr_flag(char *ifname, short flag)
|
||||
{
|
||||
struct ifreq ifr;
|
||||
|
||||
strcpy(ifr.ifr_name, ifname);
|
||||
if (ioctl(sockfd, SIOCGIFFLAGS, &ifr) < 0) {
|
||||
perror("SIOCGIFFLAGS");
|
||||
return -1;
|
||||
}
|
||||
strcpy(ifr.ifr_name, ifname);
|
||||
ifr.ifr_flags &= ~flag;
|
||||
if (ioctl(sockfd, SIOCSIFFLAGS, &ifr) < 0) {
|
||||
perror("SIOCSIFFLAGS");
|
||||
return -1;
|
||||
}
|
||||
return (0);
|
||||
}
|
||||
|
||||
/* resolve XXX.YYY.ZZZ.QQQ -> binary */
|
||||
|
||||
static int
|
||||
INET_resolve(char *name, struct sockaddr_in *sin)
|
||||
{
|
||||
sin->sin_family = AF_INET;
|
||||
sin->sin_port = 0;
|
||||
|
||||
/* Default is special, meaning 0.0.0.0. */
|
||||
if (!strcmp(name, "default")) {
|
||||
sin->sin_addr.s_addr = INADDR_ANY;
|
||||
return (1);
|
||||
}
|
||||
/* Look to see if it's a dotted quad. */
|
||||
if (inet_aton(name, &sin->sin_addr)) {
|
||||
return 0;
|
||||
}
|
||||
/* guess not.. */
|
||||
return -1;
|
||||
}
|
||||
|
||||
/* 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 = ARPHRD_ETHER;
|
||||
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
|
||||
fprintf(stderr,
|
||||
_("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
|
||||
fprintf(stderr,
|
||||
_("in_ether(%s): invalid ether address!\n"),
|
||||
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 == ':')
|
||||
bufp++;
|
||||
|
||||
}
|
||||
|
||||
if(i != ETH_ALEN) {
|
||||
errno = EINVAL;
|
||||
return -1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int ifconfig_main(int argc, char **argv)
|
||||
{
|
||||
struct ifreq ifr;
|
||||
struct sockaddr_in sa;
|
||||
struct sockaddr sa2;
|
||||
char **spp;
|
||||
int goterr = 0;
|
||||
int r, didnetmask = 0;
|
||||
char host[128];
|
||||
|
||||
if(argc < 2) {
|
||||
usage(ifconfig_usage);
|
||||
}
|
||||
|
||||
/* Create a channel to the NET kernel. */
|
||||
if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
|
||||
perror("socket");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* skip argv[0] */
|
||||
|
||||
argc--;
|
||||
argv++;
|
||||
|
||||
spp = argv;
|
||||
|
||||
/* get interface name */
|
||||
|
||||
safe_strncpy(ifr.ifr_name, *spp++, IFNAMSIZ);
|
||||
|
||||
/* Process the remaining arguments. */
|
||||
while (*spp != (char *) NULL) {
|
||||
if (!strcmp(*spp, "arp")) {
|
||||
goterr |= clr_flag(ifr.ifr_name, IFF_NOARP);
|
||||
spp++;
|
||||
continue;
|
||||
}
|
||||
if (!strcmp(*spp, "-arp")) {
|
||||
goterr |= set_flag(ifr.ifr_name, IFF_NOARP);
|
||||
spp++;
|
||||
continue;
|
||||
}
|
||||
|
||||
if (!strcmp(*spp, "trailers")) {
|
||||
goterr |= clr_flag(ifr.ifr_name, IFF_NOTRAILERS);
|
||||
spp++;
|
||||
continue;
|
||||
}
|
||||
if (!strcmp(*spp, "-trailers")) {
|
||||
goterr |= set_flag(ifr.ifr_name, IFF_NOTRAILERS);
|
||||
spp++;
|
||||
continue;
|
||||
}
|
||||
if (!strcmp(*spp, "promisc")) {
|
||||
goterr |= set_flag(ifr.ifr_name, IFF_PROMISC);
|
||||
spp++;
|
||||
continue;
|
||||
}
|
||||
if (!strcmp(*spp, "-promisc")) {
|
||||
goterr |= clr_flag(ifr.ifr_name, IFF_PROMISC);
|
||||
spp++;
|
||||
continue;
|
||||
}
|
||||
if (!strcmp(*spp, "multicast")) {
|
||||
goterr |= set_flag(ifr.ifr_name, IFF_MULTICAST);
|
||||
spp++;
|
||||
continue;
|
||||
}
|
||||
if (!strcmp(*spp, "-multicast")) {
|
||||
goterr |= clr_flag(ifr.ifr_name, IFF_MULTICAST);
|
||||
spp++;
|
||||
continue;
|
||||
}
|
||||
if (!strcmp(*spp, "allmulti")) {
|
||||
goterr |= set_flag(ifr.ifr_name, IFF_ALLMULTI);
|
||||
spp++;
|
||||
continue;
|
||||
}
|
||||
if (!strcmp(*spp, "-allmulti")) {
|
||||
goterr |= clr_flag(ifr.ifr_name, IFF_ALLMULTI);
|
||||
spp++;
|
||||
continue;
|
||||
}
|
||||
if (!strcmp(*spp, "up")) {
|
||||
goterr |= set_flag(ifr.ifr_name, (IFF_UP | IFF_RUNNING));
|
||||
spp++;
|
||||
continue;
|
||||
}
|
||||
if (!strcmp(*spp, "down")) {
|
||||
goterr |= clr_flag(ifr.ifr_name, IFF_UP);
|
||||
spp++;
|
||||
continue;
|
||||
}
|
||||
|
||||
if (!strcmp(*spp, "metric")) {
|
||||
if (*++spp == NULL)
|
||||
usage(ifconfig_usage);
|
||||
ifr.ifr_metric = atoi(*spp);
|
||||
if (ioctl(sockfd, SIOCSIFMETRIC, &ifr) < 0) {
|
||||
fprintf(stderr, "SIOCSIFMETRIC: %s\n", strerror(errno));
|
||||
goterr++;
|
||||
}
|
||||
spp++;
|
||||
continue;
|
||||
}
|
||||
if (!strcmp(*spp, "mtu")) {
|
||||
if (*++spp == NULL)
|
||||
usage(ifconfig_usage);
|
||||
ifr.ifr_mtu = atoi(*spp);
|
||||
if (ioctl(sockfd, SIOCSIFMTU, &ifr) < 0) {
|
||||
fprintf(stderr, "SIOCSIFMTU: %s\n", strerror(errno));
|
||||
goterr++;
|
||||
}
|
||||
spp++;
|
||||
continue;
|
||||
}
|
||||
#ifdef SIOCSKEEPALIVE
|
||||
if (!strcmp(*spp, "keepalive")) {
|
||||
if (*++spp == NULL)
|
||||
usage(ifconfig_usage);
|
||||
ifr.ifr_data = (caddr_t) atoi(*spp);
|
||||
if (ioctl(sockfd, SIOCSKEEPALIVE, &ifr) < 0) {
|
||||
fprintf(stderr, "SIOCSKEEPALIVE: %s\n", strerror(errno));
|
||||
goterr++;
|
||||
}
|
||||
spp++;
|
||||
continue;
|
||||
}
|
||||
#endif
|
||||
|
||||
#ifdef SIOCSOUTFILL
|
||||
if (!strcmp(*spp, "outfill")) {
|
||||
if (*++spp == NULL)
|
||||
usage(ifconfig_usage);
|
||||
ifr.ifr_data = (caddr_t) atoi(*spp);
|
||||
if (ioctl(sockfd, SIOCSOUTFILL, &ifr) < 0) {
|
||||
fprintf(stderr, "SIOCSOUTFILL: %s\n", strerror(errno));
|
||||
goterr++;
|
||||
}
|
||||
spp++;
|
||||
continue;
|
||||
}
|
||||
#endif
|
||||
|
||||
if (!strcmp(*spp, "-broadcast")) {
|
||||
goterr |= clr_flag(ifr.ifr_name, IFF_BROADCAST);
|
||||
spp++;
|
||||
continue;
|
||||
}
|
||||
if (!strcmp(*spp, "broadcast")) {
|
||||
if (*++spp != NULL) {
|
||||
safe_strncpy(host, *spp, (sizeof host));
|
||||
if (INET_resolve(host, &sa) < 0) {
|
||||
goterr++;
|
||||
spp++;
|
||||
continue;
|
||||
}
|
||||
memcpy((char *) &ifr.ifr_broadaddr,
|
||||
(char *) &sa,
|
||||
sizeof(struct sockaddr));
|
||||
if (ioctl(sockfd, SIOCSIFBRDADDR, &ifr) < 0) {
|
||||
perror("SIOCSIFBRDADDR");
|
||||
goterr++;
|
||||
}
|
||||
spp++;
|
||||
}
|
||||
goterr |= set_flag(ifr.ifr_name, IFF_BROADCAST);
|
||||
continue;
|
||||
}
|
||||
if (!strcmp(*spp, "dstaddr")) {
|
||||
if (*++spp == NULL)
|
||||
usage(ifconfig_usage);
|
||||
safe_strncpy(host, *spp, (sizeof host));
|
||||
if (INET_resolve(host, &sa) < 0) {
|
||||
goterr++;
|
||||
spp++;
|
||||
continue;
|
||||
}
|
||||
memcpy((char *) &ifr.ifr_dstaddr, (char *) &sa,
|
||||
sizeof(struct sockaddr));
|
||||
if (ioctl(sockfd, SIOCSIFDSTADDR, &ifr) < 0) {
|
||||
fprintf(stderr, "SIOCSIFDSTADDR: %s\n",
|
||||
strerror(errno));
|
||||
goterr++;
|
||||
}
|
||||
spp++;
|
||||
continue;
|
||||
}
|
||||
if (!strcmp(*spp, "netmask")) {
|
||||
if (*++spp == NULL || didnetmask)
|
||||
usage(ifconfig_usage);
|
||||
safe_strncpy(host, *spp, (sizeof host));
|
||||
if (INET_resolve(host, &sa) < 0) {
|
||||
goterr++;
|
||||
spp++;
|
||||
continue;
|
||||
}
|
||||
didnetmask++;
|
||||
memcpy((char *) &ifr.ifr_netmask, (char *) &sa,
|
||||
sizeof(struct sockaddr));
|
||||
if (ioctl(sockfd, SIOCSIFNETMASK, &ifr) < 0) {
|
||||
perror("SIOCSIFNETMASK");
|
||||
goterr++;
|
||||
}
|
||||
spp++;
|
||||
continue;
|
||||
}
|
||||
|
||||
if (!strcmp(*spp, "-pointopoint")) {
|
||||
goterr |= clr_flag(ifr.ifr_name, IFF_POINTOPOINT);
|
||||
spp++;
|
||||
continue;
|
||||
}
|
||||
if (!strcmp(*spp, "pointopoint")) {
|
||||
if (*(spp + 1) != NULL) {
|
||||
spp++;
|
||||
safe_strncpy(host, *spp, (sizeof host));
|
||||
if (INET_resolve(host, &sa)) {
|
||||
goterr++;
|
||||
spp++;
|
||||
continue;
|
||||
}
|
||||
memcpy((char *) &ifr.ifr_dstaddr, (char *) &sa,
|
||||
sizeof(struct sockaddr));
|
||||
if (ioctl(sockfd, SIOCSIFDSTADDR, &ifr) < 0) {
|
||||
perror("SIOCSIFDSTADDR");
|
||||
goterr++;
|
||||
}
|
||||
}
|
||||
goterr |= set_flag(ifr.ifr_name, IFF_POINTOPOINT);
|
||||
spp++;
|
||||
continue;
|
||||
};
|
||||
|
||||
if (!strcmp(*spp, "hw")) {
|
||||
if (*++spp == NULL || strcmp("ether", *spp)) {
|
||||
usage(ifconfig_usage);
|
||||
}
|
||||
|
||||
if (*++spp == NULL) {
|
||||
/* silently ignore it if no address */
|
||||
continue;
|
||||
}
|
||||
|
||||
safe_strncpy(host, *spp, (sizeof host));
|
||||
if (in_ether(host, &sa2) < 0) {
|
||||
fprintf(stderr, "invalid hw-addr %s\n", host);
|
||||
goterr++;
|
||||
spp++;
|
||||
continue;
|
||||
}
|
||||
memcpy((char *) &ifr.ifr_hwaddr, (char *) &sa2,
|
||||
sizeof(struct sockaddr));
|
||||
if (ioctl(sockfd, SIOCSIFHWADDR, &ifr) < 0) {
|
||||
perror("SIOCSIFHWADDR");
|
||||
goterr++;
|
||||
}
|
||||
spp++;
|
||||
continue;
|
||||
}
|
||||
|
||||
/* If the next argument is a valid hostname, assume OK. */
|
||||
safe_strncpy(host, *spp, (sizeof host));
|
||||
|
||||
if (INET_resolve(host, &sa) < 0) {
|
||||
usage(ifconfig_usage);
|
||||
}
|
||||
memcpy((char *) &ifr.ifr_addr,
|
||||
(char *) &sa, sizeof(struct sockaddr));
|
||||
|
||||
r = ioctl(sockfd, SIOCSIFADDR, &ifr);
|
||||
|
||||
if (r < 0) {
|
||||
perror("SIOCSIFADDR");
|
||||
goterr++;
|
||||
}
|
||||
|
||||
/*
|
||||
* Don't do the set_flag() if the address is an alias with a - at the
|
||||
* end, since it's deleted already! - Roman
|
||||
*
|
||||
* Should really use regex.h here, not sure though how well it'll go
|
||||
* with the cross-platform support etc.
|
||||
*/
|
||||
{
|
||||
char *ptr;
|
||||
short int found_colon = 0;
|
||||
for (ptr = ifr.ifr_name; *ptr; ptr++ )
|
||||
if (*ptr == ':') found_colon++;
|
||||
|
||||
if (!(found_colon && *(ptr - 1) == '-'))
|
||||
goterr |= set_flag(ifr.ifr_name, (IFF_UP | IFF_RUNNING));
|
||||
}
|
||||
|
||||
spp++;
|
||||
|
||||
} /* end of while-loop */
|
||||
|
||||
exit(0);
|
||||
}
|
||||
|
||||
372
networking/route.c
Normal file
372
networking/route.c
Normal file
@ -0,0 +1,372 @@
|
||||
/* route
|
||||
*
|
||||
* Similar to the standard Unix route, but with only the necessary
|
||||
* parts for AF_INET
|
||||
*
|
||||
* Bjorn Wesen, Axis Communications AB
|
||||
*
|
||||
* Author of the original route:
|
||||
* Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org>
|
||||
* (derived from FvK's 'route.c 1.70 01/04/94')
|
||||
*
|
||||
* This program is free software; you can redistribute it
|
||||
* and/or modify it under the terms of the GNU General
|
||||
* Public License as published by the Free Software
|
||||
* Foundation; either version 2 of the License, or (at
|
||||
* your option) any later version.
|
||||
*
|
||||
* $Id: route.c,v 1.1 2001/02/14 08:11:27 andersen Exp $
|
||||
*
|
||||
*/
|
||||
|
||||
#include "busybox.h"
|
||||
#include <sys/types.h>
|
||||
#include <sys/ioctl.h>
|
||||
#include <sys/socket.h>
|
||||
#include <net/route.h>
|
||||
#include <linux/param.h> // HZ
|
||||
#include <netinet/in.h>
|
||||
#include <arpa/inet.h>
|
||||
#include <stdio.h>
|
||||
#include <errno.h>
|
||||
#include <fcntl.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <getopt.h>
|
||||
#include <unistd.h>
|
||||
#include <ctype.h>
|
||||
|
||||
#define _(x) x
|
||||
|
||||
#define RTACTION_ADD 1
|
||||
#define RTACTION_DEL 2
|
||||
#define RTACTION_HELP 3
|
||||
#define RTACTION_FLUSH 4
|
||||
#define RTACTION_SHOW 5
|
||||
|
||||
#define E_NOTFOUND 8
|
||||
#define E_SOCK 7
|
||||
#define E_LOOKUP 6
|
||||
#define E_VERSION 5
|
||||
#define E_USAGE 4
|
||||
#define E_OPTERR 3
|
||||
#define E_INTERN 2
|
||||
#define E_NOSUPP 1
|
||||
|
||||
/* resolve XXX.YYY.ZZZ.QQQ -> binary */
|
||||
|
||||
static int
|
||||
INET_resolve(char *name, struct sockaddr *sa)
|
||||
{
|
||||
struct sockaddr_in *sin = (struct sockaddr_in *)sa;
|
||||
|
||||
sin->sin_family = AF_INET;
|
||||
sin->sin_port = 0;
|
||||
|
||||
/* Default is special, meaning 0.0.0.0. */
|
||||
if (!strcmp(name, "default")) {
|
||||
sin->sin_addr.s_addr = INADDR_ANY;
|
||||
return (1);
|
||||
}
|
||||
/* Look to see if it's a dotted quad. */
|
||||
if (inet_aton(name, &sin->sin_addr)) {
|
||||
return 0;
|
||||
}
|
||||
/* guess not.. */
|
||||
return -1;
|
||||
}
|
||||
|
||||
#if defined (SIOCADDRTOLD) || defined (RTF_IRTT) /* route */
|
||||
#define HAVE_NEW_ADDRT 1
|
||||
#endif
|
||||
#ifdef RTF_IRTT /* route */
|
||||
#define HAVE_RTF_IRTT 1
|
||||
#endif
|
||||
#ifdef RTF_REJECT /* route */
|
||||
#define HAVE_RTF_REJECT 1
|
||||
#endif
|
||||
|
||||
#if HAVE_NEW_ADDRT
|
||||
#define mask_in_addr(x) (((struct sockaddr_in *)&((x).rt_genmask))->sin_addr.s_addr)
|
||||
#define full_mask(x) (x)
|
||||
#else
|
||||
#define mask_in_addr(x) ((x).rt_genmask)
|
||||
#define full_mask(x) (((struct sockaddr_in *)&(x))->sin_addr.s_addr)
|
||||
#endif
|
||||
|
||||
/* add or delete a route depending on action */
|
||||
|
||||
static int
|
||||
INET_setroute(int action, int options, char **args)
|
||||
{
|
||||
struct rtentry rt;
|
||||
char target[128], gateway[128] = "NONE", netmask[128] = "default";
|
||||
int xflag, isnet;
|
||||
int skfd;
|
||||
|
||||
xflag = 0;
|
||||
|
||||
if (!strcmp(*args, "-net")) {
|
||||
xflag = 1;
|
||||
args++;
|
||||
} else if (!strcmp(*args, "-host")) {
|
||||
xflag = 2;
|
||||
args++;
|
||||
}
|
||||
if (*args == NULL)
|
||||
usage(route_usage);
|
||||
|
||||
safe_strncpy(target, *args++, (sizeof target));
|
||||
|
||||
/* Clean out the RTREQ structure. */
|
||||
memset((char *) &rt, 0, sizeof(struct rtentry));
|
||||
|
||||
|
||||
if ((isnet = INET_resolve(target, &rt.rt_dst)) < 0) {
|
||||
fprintf(stderr, "cant resolve %s\n", target);
|
||||
return (1);
|
||||
}
|
||||
|
||||
switch (xflag) {
|
||||
case 1:
|
||||
isnet = 1;
|
||||
break;
|
||||
|
||||
case 2:
|
||||
isnet = 0;
|
||||
break;
|
||||
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
/* Fill in the other fields. */
|
||||
rt.rt_flags = (RTF_UP | RTF_HOST);
|
||||
if (isnet)
|
||||
rt.rt_flags &= ~RTF_HOST;
|
||||
|
||||
while (*args) {
|
||||
if (!strcmp(*args, "metric")) {
|
||||
int metric;
|
||||
|
||||
args++;
|
||||
if (!*args || !isdigit(**args))
|
||||
usage(route_usage);
|
||||
metric = atoi(*args);
|
||||
#if HAVE_NEW_ADDRT
|
||||
rt.rt_metric = metric + 1;
|
||||
#else
|
||||
ENOSUPP("inet_setroute", "NEW_ADDRT (metric)");
|
||||
#endif
|
||||
args++;
|
||||
continue;
|
||||
}
|
||||
|
||||
if (!strcmp(*args, "netmask")) {
|
||||
struct sockaddr mask;
|
||||
|
||||
args++;
|
||||
if (!*args || mask_in_addr(rt))
|
||||
usage(route_usage);
|
||||
safe_strncpy(netmask, *args, (sizeof netmask));
|
||||
if ((isnet = INET_resolve(netmask, &mask)) < 0) {
|
||||
fprintf(stderr, "cant resolve netmask %s\n", netmask);
|
||||
return (E_LOOKUP);
|
||||
}
|
||||
rt.rt_genmask = full_mask(mask);
|
||||
args++;
|
||||
continue;
|
||||
}
|
||||
|
||||
if (!strcmp(*args, "gw") || !strcmp(*args, "gateway")) {
|
||||
args++;
|
||||
if (!*args)
|
||||
usage(route_usage);
|
||||
if (rt.rt_flags & RTF_GATEWAY)
|
||||
usage(route_usage);
|
||||
safe_strncpy(gateway, *args, (sizeof gateway));
|
||||
if ((isnet = INET_resolve(gateway, &rt.rt_gateway)) < 0) {
|
||||
fprintf(stderr, "cant resolve gw %s\n", gateway);
|
||||
return (E_LOOKUP);
|
||||
}
|
||||
if (isnet) {
|
||||
fprintf(stderr,
|
||||
_("route: %s: cannot use a NETWORK as gateway!\n"),
|
||||
gateway);
|
||||
return (E_OPTERR);
|
||||
}
|
||||
rt.rt_flags |= RTF_GATEWAY;
|
||||
args++;
|
||||
continue;
|
||||
}
|
||||
|
||||
if (!strcmp(*args, "mss")) {
|
||||
args++;
|
||||
rt.rt_flags |= RTF_MSS;
|
||||
if (!*args)
|
||||
usage(route_usage);
|
||||
rt.rt_mss = atoi(*args);
|
||||
args++;
|
||||
if (rt.rt_mss < 64 || rt.rt_mss > 32768) {
|
||||
fprintf(stderr, _("route: Invalid MSS.\n"));
|
||||
return (E_OPTERR);
|
||||
}
|
||||
continue;
|
||||
}
|
||||
|
||||
if (!strcmp(*args, "window")) {
|
||||
args++;
|
||||
if (!*args)
|
||||
usage(route_usage);
|
||||
rt.rt_flags |= RTF_WINDOW;
|
||||
rt.rt_window = atoi(*args);
|
||||
args++;
|
||||
if (rt.rt_window < 128) {
|
||||
fprintf(stderr, _("route: Invalid window.\n"));
|
||||
return (E_OPTERR);
|
||||
}
|
||||
continue;
|
||||
}
|
||||
|
||||
if (!strcmp(*args, "irtt")) {
|
||||
args++;
|
||||
if (!*args)
|
||||
usage(route_usage);
|
||||
args++;
|
||||
#if HAVE_RTF_IRTT
|
||||
rt.rt_flags |= RTF_IRTT;
|
||||
rt.rt_irtt = atoi(*(args - 1));
|
||||
rt.rt_irtt *= (HZ / 100); /* FIXME */
|
||||
#if 0 /* FIXME: do we need to check anything of this? */
|
||||
if (rt.rt_irtt < 1 || rt.rt_irtt > (120 * HZ)) {
|
||||
fprintf(stderr, _("route: Invalid initial rtt.\n"));
|
||||
return (E_OPTERR);
|
||||
}
|
||||
#endif
|
||||
#else
|
||||
ENOSUPP("inet_setroute", "RTF_IRTT");
|
||||
#endif
|
||||
continue;
|
||||
}
|
||||
|
||||
if (!strcmp(*args, "reject")) {
|
||||
args++;
|
||||
#if HAVE_RTF_REJECT
|
||||
rt.rt_flags |= RTF_REJECT;
|
||||
#else
|
||||
ENOSUPP("inet_setroute", "RTF_REJECT");
|
||||
#endif
|
||||
continue;
|
||||
}
|
||||
if (!strcmp(*args, "mod")) {
|
||||
args++;
|
||||
rt.rt_flags |= RTF_MODIFIED;
|
||||
continue;
|
||||
}
|
||||
if (!strcmp(*args, "dyn")) {
|
||||
args++;
|
||||
rt.rt_flags |= RTF_DYNAMIC;
|
||||
continue;
|
||||
}
|
||||
if (!strcmp(*args, "reinstate")) {
|
||||
args++;
|
||||
rt.rt_flags |= RTF_REINSTATE;
|
||||
continue;
|
||||
}
|
||||
if (!strcmp(*args, "device") || !strcmp(*args, "dev")) {
|
||||
args++;
|
||||
if (rt.rt_dev || *args == NULL)
|
||||
usage(route_usage);
|
||||
rt.rt_dev = *args++;
|
||||
continue;
|
||||
}
|
||||
/* nothing matches */
|
||||
if (!rt.rt_dev) {
|
||||
rt.rt_dev = *args++;
|
||||
if (*args)
|
||||
usage(route_usage); /* must be last to catch typos */
|
||||
} else
|
||||
usage(route_usage);
|
||||
}
|
||||
|
||||
#if HAVE_RTF_REJECT
|
||||
if ((rt.rt_flags & RTF_REJECT) && !rt.rt_dev)
|
||||
rt.rt_dev = "lo";
|
||||
#endif
|
||||
|
||||
/* sanity checks.. */
|
||||
if (mask_in_addr(rt)) {
|
||||
unsigned long mask = mask_in_addr(rt);
|
||||
mask = ~ntohl(mask);
|
||||
if ((rt.rt_flags & RTF_HOST) && mask != 0xffffffff) {
|
||||
fprintf(stderr,
|
||||
_("route: netmask %.8x doesn't make sense with host route\n"),
|
||||
(unsigned int)mask);
|
||||
return (E_OPTERR);
|
||||
}
|
||||
if (mask & (mask + 1)) {
|
||||
fprintf(stderr, _("route: bogus netmask %s\n"), netmask);
|
||||
return (E_OPTERR);
|
||||
}
|
||||
mask = ((struct sockaddr_in *) &rt.rt_dst)->sin_addr.s_addr;
|
||||
if (mask & ~mask_in_addr(rt)) {
|
||||
fprintf(stderr, _("route: netmask doesn't match route address\n"));
|
||||
return (E_OPTERR);
|
||||
}
|
||||
}
|
||||
/* Fill out netmask if still unset */
|
||||
if ((action == RTACTION_ADD) && rt.rt_flags & RTF_HOST)
|
||||
mask_in_addr(rt) = 0xffffffff;
|
||||
|
||||
/* Create a socket to the INET kernel. */
|
||||
if ((skfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
|
||||
perror("socket");
|
||||
return (E_SOCK);
|
||||
}
|
||||
/* Tell the kernel to accept this route. */
|
||||
if (action == RTACTION_DEL) {
|
||||
if (ioctl(skfd, SIOCDELRT, &rt) < 0) {
|
||||
perror("SIOCDELRT");
|
||||
close(skfd);
|
||||
return (E_SOCK);
|
||||
}
|
||||
} else {
|
||||
if (ioctl(skfd, SIOCADDRT, &rt) < 0) {
|
||||
perror("SIOCADDRT");
|
||||
close(skfd);
|
||||
return (E_SOCK);
|
||||
}
|
||||
}
|
||||
|
||||
/* Close the socket. */
|
||||
(void) close(skfd);
|
||||
return (0);
|
||||
}
|
||||
|
||||
int route_main(int argc, char **argv)
|
||||
{
|
||||
int what = 0;
|
||||
|
||||
argc--;
|
||||
argv++;
|
||||
|
||||
if (*argv == NULL) {
|
||||
//displayroutes();
|
||||
fprintf(stderr, "print routes is not implemented yet\n");
|
||||
usage(route_usage);
|
||||
} else {
|
||||
/* check verb */
|
||||
if (!strcmp(*argv, "add"))
|
||||
what = RTACTION_ADD;
|
||||
else if (!strcmp(*argv, "del") || !strcmp(*argv, "delete"))
|
||||
what = RTACTION_DEL;
|
||||
else if (!strcmp(*argv, "flush"))
|
||||
what = RTACTION_FLUSH;
|
||||
else
|
||||
usage(route_usage);
|
||||
}
|
||||
|
||||
INET_setroute(what, 0, ++argv);
|
||||
|
||||
exit(0);
|
||||
}
|
||||
372
route.c
Normal file
372
route.c
Normal file
@ -0,0 +1,372 @@
|
||||
/* route
|
||||
*
|
||||
* Similar to the standard Unix route, but with only the necessary
|
||||
* parts for AF_INET
|
||||
*
|
||||
* Bjorn Wesen, Axis Communications AB
|
||||
*
|
||||
* Author of the original route:
|
||||
* Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org>
|
||||
* (derived from FvK's 'route.c 1.70 01/04/94')
|
||||
*
|
||||
* This program is free software; you can redistribute it
|
||||
* and/or modify it under the terms of the GNU General
|
||||
* Public License as published by the Free Software
|
||||
* Foundation; either version 2 of the License, or (at
|
||||
* your option) any later version.
|
||||
*
|
||||
* $Id: route.c,v 1.1 2001/02/14 08:11:27 andersen Exp $
|
||||
*
|
||||
*/
|
||||
|
||||
#include "busybox.h"
|
||||
#include <sys/types.h>
|
||||
#include <sys/ioctl.h>
|
||||
#include <sys/socket.h>
|
||||
#include <net/route.h>
|
||||
#include <linux/param.h> // HZ
|
||||
#include <netinet/in.h>
|
||||
#include <arpa/inet.h>
|
||||
#include <stdio.h>
|
||||
#include <errno.h>
|
||||
#include <fcntl.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <getopt.h>
|
||||
#include <unistd.h>
|
||||
#include <ctype.h>
|
||||
|
||||
#define _(x) x
|
||||
|
||||
#define RTACTION_ADD 1
|
||||
#define RTACTION_DEL 2
|
||||
#define RTACTION_HELP 3
|
||||
#define RTACTION_FLUSH 4
|
||||
#define RTACTION_SHOW 5
|
||||
|
||||
#define E_NOTFOUND 8
|
||||
#define E_SOCK 7
|
||||
#define E_LOOKUP 6
|
||||
#define E_VERSION 5
|
||||
#define E_USAGE 4
|
||||
#define E_OPTERR 3
|
||||
#define E_INTERN 2
|
||||
#define E_NOSUPP 1
|
||||
|
||||
/* resolve XXX.YYY.ZZZ.QQQ -> binary */
|
||||
|
||||
static int
|
||||
INET_resolve(char *name, struct sockaddr *sa)
|
||||
{
|
||||
struct sockaddr_in *sin = (struct sockaddr_in *)sa;
|
||||
|
||||
sin->sin_family = AF_INET;
|
||||
sin->sin_port = 0;
|
||||
|
||||
/* Default is special, meaning 0.0.0.0. */
|
||||
if (!strcmp(name, "default")) {
|
||||
sin->sin_addr.s_addr = INADDR_ANY;
|
||||
return (1);
|
||||
}
|
||||
/* Look to see if it's a dotted quad. */
|
||||
if (inet_aton(name, &sin->sin_addr)) {
|
||||
return 0;
|
||||
}
|
||||
/* guess not.. */
|
||||
return -1;
|
||||
}
|
||||
|
||||
#if defined (SIOCADDRTOLD) || defined (RTF_IRTT) /* route */
|
||||
#define HAVE_NEW_ADDRT 1
|
||||
#endif
|
||||
#ifdef RTF_IRTT /* route */
|
||||
#define HAVE_RTF_IRTT 1
|
||||
#endif
|
||||
#ifdef RTF_REJECT /* route */
|
||||
#define HAVE_RTF_REJECT 1
|
||||
#endif
|
||||
|
||||
#if HAVE_NEW_ADDRT
|
||||
#define mask_in_addr(x) (((struct sockaddr_in *)&((x).rt_genmask))->sin_addr.s_addr)
|
||||
#define full_mask(x) (x)
|
||||
#else
|
||||
#define mask_in_addr(x) ((x).rt_genmask)
|
||||
#define full_mask(x) (((struct sockaddr_in *)&(x))->sin_addr.s_addr)
|
||||
#endif
|
||||
|
||||
/* add or delete a route depending on action */
|
||||
|
||||
static int
|
||||
INET_setroute(int action, int options, char **args)
|
||||
{
|
||||
struct rtentry rt;
|
||||
char target[128], gateway[128] = "NONE", netmask[128] = "default";
|
||||
int xflag, isnet;
|
||||
int skfd;
|
||||
|
||||
xflag = 0;
|
||||
|
||||
if (!strcmp(*args, "-net")) {
|
||||
xflag = 1;
|
||||
args++;
|
||||
} else if (!strcmp(*args, "-host")) {
|
||||
xflag = 2;
|
||||
args++;
|
||||
}
|
||||
if (*args == NULL)
|
||||
usage(route_usage);
|
||||
|
||||
safe_strncpy(target, *args++, (sizeof target));
|
||||
|
||||
/* Clean out the RTREQ structure. */
|
||||
memset((char *) &rt, 0, sizeof(struct rtentry));
|
||||
|
||||
|
||||
if ((isnet = INET_resolve(target, &rt.rt_dst)) < 0) {
|
||||
fprintf(stderr, "cant resolve %s\n", target);
|
||||
return (1);
|
||||
}
|
||||
|
||||
switch (xflag) {
|
||||
case 1:
|
||||
isnet = 1;
|
||||
break;
|
||||
|
||||
case 2:
|
||||
isnet = 0;
|
||||
break;
|
||||
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
/* Fill in the other fields. */
|
||||
rt.rt_flags = (RTF_UP | RTF_HOST);
|
||||
if (isnet)
|
||||
rt.rt_flags &= ~RTF_HOST;
|
||||
|
||||
while (*args) {
|
||||
if (!strcmp(*args, "metric")) {
|
||||
int metric;
|
||||
|
||||
args++;
|
||||
if (!*args || !isdigit(**args))
|
||||
usage(route_usage);
|
||||
metric = atoi(*args);
|
||||
#if HAVE_NEW_ADDRT
|
||||
rt.rt_metric = metric + 1;
|
||||
#else
|
||||
ENOSUPP("inet_setroute", "NEW_ADDRT (metric)");
|
||||
#endif
|
||||
args++;
|
||||
continue;
|
||||
}
|
||||
|
||||
if (!strcmp(*args, "netmask")) {
|
||||
struct sockaddr mask;
|
||||
|
||||
args++;
|
||||
if (!*args || mask_in_addr(rt))
|
||||
usage(route_usage);
|
||||
safe_strncpy(netmask, *args, (sizeof netmask));
|
||||
if ((isnet = INET_resolve(netmask, &mask)) < 0) {
|
||||
fprintf(stderr, "cant resolve netmask %s\n", netmask);
|
||||
return (E_LOOKUP);
|
||||
}
|
||||
rt.rt_genmask = full_mask(mask);
|
||||
args++;
|
||||
continue;
|
||||
}
|
||||
|
||||
if (!strcmp(*args, "gw") || !strcmp(*args, "gateway")) {
|
||||
args++;
|
||||
if (!*args)
|
||||
usage(route_usage);
|
||||
if (rt.rt_flags & RTF_GATEWAY)
|
||||
usage(route_usage);
|
||||
safe_strncpy(gateway, *args, (sizeof gateway));
|
||||
if ((isnet = INET_resolve(gateway, &rt.rt_gateway)) < 0) {
|
||||
fprintf(stderr, "cant resolve gw %s\n", gateway);
|
||||
return (E_LOOKUP);
|
||||
}
|
||||
if (isnet) {
|
||||
fprintf(stderr,
|
||||
_("route: %s: cannot use a NETWORK as gateway!\n"),
|
||||
gateway);
|
||||
return (E_OPTERR);
|
||||
}
|
||||
rt.rt_flags |= RTF_GATEWAY;
|
||||
args++;
|
||||
continue;
|
||||
}
|
||||
|
||||
if (!strcmp(*args, "mss")) {
|
||||
args++;
|
||||
rt.rt_flags |= RTF_MSS;
|
||||
if (!*args)
|
||||
usage(route_usage);
|
||||
rt.rt_mss = atoi(*args);
|
||||
args++;
|
||||
if (rt.rt_mss < 64 || rt.rt_mss > 32768) {
|
||||
fprintf(stderr, _("route: Invalid MSS.\n"));
|
||||
return (E_OPTERR);
|
||||
}
|
||||
continue;
|
||||
}
|
||||
|
||||
if (!strcmp(*args, "window")) {
|
||||
args++;
|
||||
if (!*args)
|
||||
usage(route_usage);
|
||||
rt.rt_flags |= RTF_WINDOW;
|
||||
rt.rt_window = atoi(*args);
|
||||
args++;
|
||||
if (rt.rt_window < 128) {
|
||||
fprintf(stderr, _("route: Invalid window.\n"));
|
||||
return (E_OPTERR);
|
||||
}
|
||||
continue;
|
||||
}
|
||||
|
||||
if (!strcmp(*args, "irtt")) {
|
||||
args++;
|
||||
if (!*args)
|
||||
usage(route_usage);
|
||||
args++;
|
||||
#if HAVE_RTF_IRTT
|
||||
rt.rt_flags |= RTF_IRTT;
|
||||
rt.rt_irtt = atoi(*(args - 1));
|
||||
rt.rt_irtt *= (HZ / 100); /* FIXME */
|
||||
#if 0 /* FIXME: do we need to check anything of this? */
|
||||
if (rt.rt_irtt < 1 || rt.rt_irtt > (120 * HZ)) {
|
||||
fprintf(stderr, _("route: Invalid initial rtt.\n"));
|
||||
return (E_OPTERR);
|
||||
}
|
||||
#endif
|
||||
#else
|
||||
ENOSUPP("inet_setroute", "RTF_IRTT");
|
||||
#endif
|
||||
continue;
|
||||
}
|
||||
|
||||
if (!strcmp(*args, "reject")) {
|
||||
args++;
|
||||
#if HAVE_RTF_REJECT
|
||||
rt.rt_flags |= RTF_REJECT;
|
||||
#else
|
||||
ENOSUPP("inet_setroute", "RTF_REJECT");
|
||||
#endif
|
||||
continue;
|
||||
}
|
||||
if (!strcmp(*args, "mod")) {
|
||||
args++;
|
||||
rt.rt_flags |= RTF_MODIFIED;
|
||||
continue;
|
||||
}
|
||||
if (!strcmp(*args, "dyn")) {
|
||||
args++;
|
||||
rt.rt_flags |= RTF_DYNAMIC;
|
||||
continue;
|
||||
}
|
||||
if (!strcmp(*args, "reinstate")) {
|
||||
args++;
|
||||
rt.rt_flags |= RTF_REINSTATE;
|
||||
continue;
|
||||
}
|
||||
if (!strcmp(*args, "device") || !strcmp(*args, "dev")) {
|
||||
args++;
|
||||
if (rt.rt_dev || *args == NULL)
|
||||
usage(route_usage);
|
||||
rt.rt_dev = *args++;
|
||||
continue;
|
||||
}
|
||||
/* nothing matches */
|
||||
if (!rt.rt_dev) {
|
||||
rt.rt_dev = *args++;
|
||||
if (*args)
|
||||
usage(route_usage); /* must be last to catch typos */
|
||||
} else
|
||||
usage(route_usage);
|
||||
}
|
||||
|
||||
#if HAVE_RTF_REJECT
|
||||
if ((rt.rt_flags & RTF_REJECT) && !rt.rt_dev)
|
||||
rt.rt_dev = "lo";
|
||||
#endif
|
||||
|
||||
/* sanity checks.. */
|
||||
if (mask_in_addr(rt)) {
|
||||
unsigned long mask = mask_in_addr(rt);
|
||||
mask = ~ntohl(mask);
|
||||
if ((rt.rt_flags & RTF_HOST) && mask != 0xffffffff) {
|
||||
fprintf(stderr,
|
||||
_("route: netmask %.8x doesn't make sense with host route\n"),
|
||||
(unsigned int)mask);
|
||||
return (E_OPTERR);
|
||||
}
|
||||
if (mask & (mask + 1)) {
|
||||
fprintf(stderr, _("route: bogus netmask %s\n"), netmask);
|
||||
return (E_OPTERR);
|
||||
}
|
||||
mask = ((struct sockaddr_in *) &rt.rt_dst)->sin_addr.s_addr;
|
||||
if (mask & ~mask_in_addr(rt)) {
|
||||
fprintf(stderr, _("route: netmask doesn't match route address\n"));
|
||||
return (E_OPTERR);
|
||||
}
|
||||
}
|
||||
/* Fill out netmask if still unset */
|
||||
if ((action == RTACTION_ADD) && rt.rt_flags & RTF_HOST)
|
||||
mask_in_addr(rt) = 0xffffffff;
|
||||
|
||||
/* Create a socket to the INET kernel. */
|
||||
if ((skfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
|
||||
perror("socket");
|
||||
return (E_SOCK);
|
||||
}
|
||||
/* Tell the kernel to accept this route. */
|
||||
if (action == RTACTION_DEL) {
|
||||
if (ioctl(skfd, SIOCDELRT, &rt) < 0) {
|
||||
perror("SIOCDELRT");
|
||||
close(skfd);
|
||||
return (E_SOCK);
|
||||
}
|
||||
} else {
|
||||
if (ioctl(skfd, SIOCADDRT, &rt) < 0) {
|
||||
perror("SIOCADDRT");
|
||||
close(skfd);
|
||||
return (E_SOCK);
|
||||
}
|
||||
}
|
||||
|
||||
/* Close the socket. */
|
||||
(void) close(skfd);
|
||||
return (0);
|
||||
}
|
||||
|
||||
int route_main(int argc, char **argv)
|
||||
{
|
||||
int what = 0;
|
||||
|
||||
argc--;
|
||||
argv++;
|
||||
|
||||
if (*argv == NULL) {
|
||||
//displayroutes();
|
||||
fprintf(stderr, "print routes is not implemented yet\n");
|
||||
usage(route_usage);
|
||||
} else {
|
||||
/* check verb */
|
||||
if (!strcmp(*argv, "add"))
|
||||
what = RTACTION_ADD;
|
||||
else if (!strcmp(*argv, "del") || !strcmp(*argv, "delete"))
|
||||
what = RTACTION_DEL;
|
||||
else if (!strcmp(*argv, "flush"))
|
||||
what = RTACTION_FLUSH;
|
||||
else
|
||||
usage(route_usage);
|
||||
}
|
||||
|
||||
INET_setroute(what, 0, ++argv);
|
||||
|
||||
exit(0);
|
||||
}
|
||||
29
usage.c
29
usage.c
@ -556,6 +556,26 @@ const char id_usage[] =
|
||||
;
|
||||
#endif
|
||||
|
||||
#if defined BB_IFCONFIG
|
||||
const char ifconfig_usage[] =
|
||||
"ifconfig [-a] [-i] [-v] <interface> [<address>]"
|
||||
#ifndef BB_FEATURE_TRIVIAL_HELP
|
||||
"\n\nconfigure a network interface\n\n"
|
||||
"Options:\n"
|
||||
" [[-]broadcast [<address>]] [[-]pointopoint [<address>]]\n"
|
||||
" [netmask <address>] [dstaddr <address>] [tunnel <adress>]\n"
|
||||
#ifdef SIOCSKEEPALIVE
|
||||
" [outfill <NN>] [keepalive <NN>]\n"
|
||||
#endif
|
||||
" [hw ether <address>] [metric <NN>] [mtu <NN>]\n"
|
||||
" [[-]trailers] [[-]arp] [[-]allmulti]\n"
|
||||
" [multicast] [[-]promisc]\n"
|
||||
" [mem_start <NN>] [io_addr <NN>] [irq <NN>] [media <type>]\n"
|
||||
" [up|down] ..."
|
||||
#endif
|
||||
;
|
||||
#endif
|
||||
|
||||
#if defined BB_INSMOD
|
||||
const char insmod_usage[] =
|
||||
"insmod [OPTION]... MODULE [symbol=value]..."
|
||||
@ -1144,6 +1164,15 @@ const char rmmod_usage[] =
|
||||
;
|
||||
#endif
|
||||
|
||||
#if defined BB_ROUTE
|
||||
const char route_usage[] =
|
||||
"route [{add|del|flush}]"
|
||||
#ifndef BB_FEATURE_TRIVIAL_HELP
|
||||
"\n\nEdit the kernel's routing tables"
|
||||
#endif
|
||||
;
|
||||
#endif
|
||||
|
||||
#if defined BB_RPMUNPACK
|
||||
const char rpmunpack_usage[] =
|
||||
"rpmunpack < package.rpm | gunzip | cpio -idmuv"
|
||||
|
||||
@ -1377,6 +1377,14 @@ extern char * xstrndup (const char *s, int n) {
|
||||
}
|
||||
#endif
|
||||
|
||||
#if defined BB_IFCONFIG || defined BB_ROUTE
|
||||
/* Like strncpy but make sure the resulting string is always 0 terminated. */
|
||||
extern char * safe_strncpy(char *dst, const char *src, size_t size)
|
||||
{
|
||||
dst[size-1] = '\0';
|
||||
return strncpy(dst, src, size-1);
|
||||
}
|
||||
#endif
|
||||
|
||||
#if (__GLIBC__ < 2) && (defined BB_SYSLOGD || defined BB_INIT)
|
||||
extern int vdprintf(int d, const char *format, va_list ap)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user