Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 1 | /* ifconfig |
| 2 | * |
| 3 | * Similar to the standard Unix ifconfig, but with only the necessary |
| 4 | * parts for AF_INET, and without any printing of if info (for now). |
| 5 | * |
| 6 | * Bjorn Wesen, Axis Communications AB |
| 7 | * |
| 8 | * |
| 9 | * Authors of the original ifconfig was: |
| 10 | * Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org> |
| 11 | * |
| 12 | * This program is free software; you can redistribute it |
| 13 | * and/or modify it under the terms of the GNU General |
| 14 | * Public License as published by the Free Software |
| 15 | * Foundation; either version 2 of the License, or (at |
| 16 | * your option) any later version. |
| 17 | * |
Glenn L McGrath | 393183d | 2003-05-26 14:07:50 +0000 | [diff] [blame] | 18 | * $Id: ifconfig.c,v 1.24 2003/05/26 14:06:01 bug1 Exp $ |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 19 | * |
| 20 | */ |
| 21 | |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 22 | /* |
| 23 | * Heavily modified by Manuel Novoa III Mar 6, 2001 |
| 24 | * |
| 25 | * From initial port to busybox, removed most of the redundancy by |
| 26 | * converting to a table-driven approach. Added several (optional) |
| 27 | * args missing from initial port. |
| 28 | * |
Manuel Novoa III | 68ea1d0 | 2001-03-12 09:57:59 +0000 | [diff] [blame] | 29 | * Still missing: media, tunnel. |
Eric Andersen | 51b8bd6 | 2002-07-03 11:46:38 +0000 | [diff] [blame] | 30 | * |
| 31 | * 2002-04-20 |
| 32 | * IPV6 support added by Bart Visscher <magick@linux-fan.com> |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 33 | */ |
| 34 | |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 35 | #include <stdio.h> |
| 36 | #include <stdlib.h> |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 37 | #include <string.h> /* strcmp and friends */ |
| 38 | #include <ctype.h> /* isdigit and friends */ |
| 39 | #include <stddef.h> /* offsetof */ |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 40 | #include <sys/ioctl.h> |
Eric Andersen | ab4e19a | 2003-01-14 08:54:08 +0000 | [diff] [blame] | 41 | #include <net/if.h> |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 42 | #include <net/if_arp.h> |
Eric Andersen | cd8c436 | 2001-11-10 11:22:46 +0000 | [diff] [blame] | 43 | #include <netinet/in.h> |
Eric Andersen | ab4e19a | 2003-01-14 08:54:08 +0000 | [diff] [blame] | 44 | #if __GLIBC__ >=2 && __GLIBC_MINOR >= 1 |
| 45 | #include <netpacket/packet.h> |
| 46 | #include <net/ethernet.h> |
| 47 | #else |
| 48 | #include <asm/types.h> |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 49 | #include <linux/if_ether.h> |
Eric Andersen | ab4e19a | 2003-01-14 08:54:08 +0000 | [diff] [blame] | 50 | #endif |
Eric Andersen | cd8c436 | 2001-11-10 11:22:46 +0000 | [diff] [blame] | 51 | #include "inet_common.h" |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 52 | #include "busybox.h" |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 53 | |
Eric Andersen | bdfd0d7 | 2001-10-24 05:00:29 +0000 | [diff] [blame] | 54 | #ifdef CONFIG_FEATURE_IFCONFIG_SLIP |
Eric Andersen | ab4e19a | 2003-01-14 08:54:08 +0000 | [diff] [blame] | 55 | # include <net/if_slip.h> |
Eric Andersen | f15d4da | 2001-03-06 00:48:59 +0000 | [diff] [blame] | 56 | #endif |
| 57 | |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 58 | /* I don't know if this is needed for busybox or not. Anyone? */ |
| 59 | #define QUESTIONABLE_ALIAS_CASE |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 60 | |
| 61 | |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 62 | /* Defines for glibc2.0 users. */ |
| 63 | #ifndef SIOCSIFTXQLEN |
Glenn L McGrath | 8ae4cab | 2002-11-26 09:02:06 +0000 | [diff] [blame] | 64 | # define SIOCSIFTXQLEN 0x8943 |
| 65 | # define SIOCGIFTXQLEN 0x8942 |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 66 | #endif |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 67 | |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 68 | /* ifr_qlen is ifru_ivalue, but it isn't present in 2.0 kernel headers */ |
| 69 | #ifndef ifr_qlen |
Glenn L McGrath | 8ae4cab | 2002-11-26 09:02:06 +0000 | [diff] [blame] | 70 | # define ifr_qlen ifr_ifru.ifru_mtu |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 71 | #endif |
Eric Andersen | f15d4da | 2001-03-06 00:48:59 +0000 | [diff] [blame] | 72 | |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 73 | #ifndef IFF_DYNAMIC |
Glenn L McGrath | 8ae4cab | 2002-11-26 09:02:06 +0000 | [diff] [blame] | 74 | # define IFF_DYNAMIC 0x8000 /* dialup device with changing addresses */ |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 75 | #endif |
Eric Andersen | f15d4da | 2001-03-06 00:48:59 +0000 | [diff] [blame] | 76 | |
Glenn L McGrath | 8ae4cab | 2002-11-26 09:02:06 +0000 | [diff] [blame] | 77 | #ifdef CONFIG_FEATURE_IPV6 |
Eric Andersen | 51b8bd6 | 2002-07-03 11:46:38 +0000 | [diff] [blame] | 78 | struct in6_ifreq { |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 79 | struct in6_addr ifr6_addr; |
| 80 | uint32_t ifr6_prefixlen; |
| 81 | int ifr6_ifindex; |
Eric Andersen | 51b8bd6 | 2002-07-03 11:46:38 +0000 | [diff] [blame] | 82 | }; |
| 83 | #endif |
| 84 | |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 85 | /* |
| 86 | * Here are the bit masks for the "flags" member of struct options below. |
| 87 | * N_ signifies no arg prefix; M_ signifies arg prefixed by '-'. |
| 88 | * CLR clears the flag; SET sets the flag; ARG signifies (optional) arg. |
Eric Andersen | f15d4da | 2001-03-06 00:48:59 +0000 | [diff] [blame] | 89 | */ |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 90 | #define N_CLR 0x01 |
| 91 | #define M_CLR 0x02 |
| 92 | #define N_SET 0x04 |
| 93 | #define M_SET 0x08 |
| 94 | #define N_ARG 0x10 |
| 95 | #define M_ARG 0x20 |
| 96 | |
| 97 | #define M_MASK (M_CLR | M_SET | M_ARG) |
| 98 | #define N_MASK (N_CLR | N_SET | N_ARG) |
| 99 | #define SET_MASK (N_SET | M_SET) |
| 100 | #define CLR_MASK (N_CLR | M_CLR) |
| 101 | #define SET_CLR_MASK (SET_MASK | CLR_MASK) |
| 102 | #define ARG_MASK (M_ARG | N_ARG) |
| 103 | |
| 104 | /* |
| 105 | * Here are the bit masks for the "arg_flags" member of struct options below. |
| 106 | */ |
| 107 | |
| 108 | /* |
| 109 | * cast type: |
| 110 | * 00 int |
| 111 | * 01 char * |
| 112 | * 02 HOST_COPY in_ether |
| 113 | * 03 HOST_COPY INET_resolve |
| 114 | */ |
| 115 | #define A_CAST_TYPE 0x03 |
| 116 | /* |
| 117 | * map type: |
| 118 | * 00 not a map type (mem_start, io_addr, irq) |
| 119 | * 04 memstart (unsigned long) |
| 120 | * 08 io_addr (unsigned short) |
| 121 | * 0C irq (unsigned char) |
| 122 | */ |
| 123 | #define A_MAP_TYPE 0x0C |
| 124 | #define A_ARG_REQ 0x10 /* Set if an arg is required. */ |
| 125 | #define A_NETMASK 0x20 /* Set if netmask (check for multiple sets). */ |
| 126 | #define A_SET_AFTER 0x40 /* Set a flag at the end. */ |
| 127 | #define A_COLON_CHK 0x80 /* Is this needed? See below. */ |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 128 | #ifdef CONFIG_FEATURE_IFCONFIG_BROADCAST_PLUS |
| 129 | #define A_HOSTNAME 0x100 /* Set if it is ip addr. */ |
| 130 | #define A_BROADCAST 0x200 /* Set if it is broadcast addr. */ |
| 131 | #else |
| 132 | #define A_HOSTNAME 0 |
| 133 | #define A_BROADCAST 0 |
| 134 | #endif |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 135 | |
| 136 | /* |
| 137 | * These defines are for dealing with the A_CAST_TYPE field. |
| 138 | */ |
| 139 | #define A_CAST_CHAR_PTR 0x01 |
| 140 | #define A_CAST_RESOLVE 0x01 |
| 141 | #define A_CAST_HOST_COPY 0x02 |
| 142 | #define A_CAST_HOST_COPY_IN_ETHER A_CAST_HOST_COPY |
| 143 | #define A_CAST_HOST_COPY_RESOLVE (A_CAST_HOST_COPY | A_CAST_RESOLVE) |
| 144 | |
| 145 | /* |
| 146 | * These defines are for dealing with the A_MAP_TYPE field. |
| 147 | */ |
| 148 | #define A_MAP_ULONG 0x04 /* memstart */ |
| 149 | #define A_MAP_USHORT 0x08 /* io_addr */ |
| 150 | #define A_MAP_UCHAR 0x0C /* irq */ |
| 151 | |
| 152 | /* |
| 153 | * Define the bit masks signifying which operations to perform for each arg. |
| 154 | */ |
| 155 | |
| 156 | #define ARG_METRIC (A_ARG_REQ /*| A_CAST_INT*/) |
| 157 | #define ARG_MTU (A_ARG_REQ /*| A_CAST_INT*/) |
| 158 | #define ARG_TXQUEUELEN (A_ARG_REQ /*| A_CAST_INT*/) |
| 159 | #define ARG_MEM_START (A_ARG_REQ | A_MAP_ULONG) |
Eric Andersen | 72f9a42 | 2001-10-28 05:12:20 +0000 | [diff] [blame] | 160 | #define ARG_IO_ADDR (A_ARG_REQ | A_MAP_ULONG) |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 161 | #define ARG_IRQ (A_ARG_REQ | A_MAP_UCHAR) |
| 162 | #define ARG_DSTADDR (A_ARG_REQ | A_CAST_HOST_COPY_RESOLVE) |
| 163 | #define ARG_NETMASK (A_ARG_REQ | A_CAST_HOST_COPY_RESOLVE | A_NETMASK) |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 164 | #define ARG_BROADCAST (A_ARG_REQ | A_CAST_HOST_COPY_RESOLVE | A_SET_AFTER | A_BROADCAST) |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 165 | #define ARG_HW (A_ARG_REQ | A_CAST_HOST_COPY_IN_ETHER) |
| 166 | #define ARG_POINTOPOINT (A_CAST_HOST_COPY_RESOLVE | A_SET_AFTER) |
| 167 | #define ARG_KEEPALIVE (A_ARG_REQ | A_CAST_CHAR_PTR) |
| 168 | #define ARG_OUTFILL (A_ARG_REQ | A_CAST_CHAR_PTR) |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 169 | #define ARG_HOSTNAME (A_CAST_HOST_COPY_RESOLVE | A_SET_AFTER | A_COLON_CHK | A_HOSTNAME) |
Eric Andersen | 51b8bd6 | 2002-07-03 11:46:38 +0000 | [diff] [blame] | 170 | #define ARG_ADD_DEL (A_CAST_HOST_COPY_RESOLVE | A_SET_AFTER) |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 171 | |
| 172 | |
| 173 | /* |
| 174 | * Set up the tables. Warning! They must have corresponding order! |
| 175 | */ |
| 176 | |
| 177 | struct arg1opt { |
| 178 | const char *name; |
| 179 | unsigned short selector; |
| 180 | unsigned short ifr_offset; |
| 181 | }; |
| 182 | |
| 183 | struct options { |
| 184 | const char *name; |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 185 | #ifdef CONFIG_FEATURE_IFCONFIG_BROADCAST_PLUS |
| 186 | const unsigned int flags:6; |
| 187 | const unsigned int arg_flags:10; |
| 188 | #else |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 189 | const unsigned char flags; |
Manuel Novoa III | 4fb0b51 | 2001-08-10 06:02:23 +0000 | [diff] [blame] | 190 | const unsigned char arg_flags; |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 191 | #endif |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 192 | const unsigned short selector; |
| 193 | }; |
| 194 | |
| 195 | #define ifreq_offsetof(x) offsetof(struct ifreq, x) |
| 196 | |
| 197 | static const struct arg1opt Arg1Opt[] = { |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 198 | {"SIOCSIFMETRIC", SIOCSIFMETRIC, ifreq_offsetof(ifr_metric)}, |
| 199 | {"SIOCSIFMTU", SIOCSIFMTU, ifreq_offsetof(ifr_mtu)}, |
| 200 | {"SIOCSIFTXQLEN", SIOCSIFTXQLEN, ifreq_offsetof(ifr_qlen)}, |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 201 | {"SIOCSIFDSTADDR", SIOCSIFDSTADDR, ifreq_offsetof(ifr_dstaddr)}, |
| 202 | {"SIOCSIFNETMASK", SIOCSIFNETMASK, ifreq_offsetof(ifr_netmask)}, |
| 203 | {"SIOCSIFBRDADDR", SIOCSIFBRDADDR, ifreq_offsetof(ifr_broadaddr)}, |
Eric Andersen | bdfd0d7 | 2001-10-24 05:00:29 +0000 | [diff] [blame] | 204 | #ifdef CONFIG_FEATURE_IFCONFIG_HW |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 205 | {"SIOCSIFHWADDR", SIOCSIFHWADDR, ifreq_offsetof(ifr_hwaddr)}, |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 206 | #endif |
| 207 | {"SIOCSIFDSTADDR", SIOCSIFDSTADDR, ifreq_offsetof(ifr_dstaddr)}, |
Eric Andersen | f15d4da | 2001-03-06 00:48:59 +0000 | [diff] [blame] | 208 | #ifdef SIOCSKEEPALIVE |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 209 | {"SIOCSKEEPALIVE", SIOCSKEEPALIVE, ifreq_offsetof(ifr_data)}, |
Eric Andersen | f15d4da | 2001-03-06 00:48:59 +0000 | [diff] [blame] | 210 | #endif |
| 211 | #ifdef SIOCSOUTFILL |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 212 | {"SIOCSOUTFILL", SIOCSOUTFILL, ifreq_offsetof(ifr_data)}, |
Eric Andersen | f15d4da | 2001-03-06 00:48:59 +0000 | [diff] [blame] | 213 | #endif |
Eric Andersen | bdfd0d7 | 2001-10-24 05:00:29 +0000 | [diff] [blame] | 214 | #ifdef CONFIG_FEATURE_IFCONFIG_MEMSTART_IOADDR_IRQ |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 215 | {"SIOCSIFMAP", SIOCSIFMAP, ifreq_offsetof(ifr_map.mem_start)}, |
| 216 | {"SIOCSIFMAP", SIOCSIFMAP, ifreq_offsetof(ifr_map.base_addr)}, |
| 217 | {"SIOCSIFMAP", SIOCSIFMAP, ifreq_offsetof(ifr_map.irq)}, |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 218 | #endif |
| 219 | /* Last entry if for unmatched (possibly hostname) arg. */ |
Glenn L McGrath | 8ae4cab | 2002-11-26 09:02:06 +0000 | [diff] [blame] | 220 | #ifdef CONFIG_FEATURE_IPV6 |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 221 | {"SIOCSIFADDR", SIOCSIFADDR, ifreq_offsetof(ifr_addr)}, /* IPv6 version ignores the offset */ |
| 222 | {"SIOCDIFADDR", SIOCDIFADDR, ifreq_offsetof(ifr_addr)}, /* IPv6 version ignores the offset */ |
Eric Andersen | 51b8bd6 | 2002-07-03 11:46:38 +0000 | [diff] [blame] | 223 | #endif |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 224 | {"SIOCSIFADDR", SIOCSIFADDR, ifreq_offsetof(ifr_addr)}, |
Eric Andersen | f15d4da | 2001-03-06 00:48:59 +0000 | [diff] [blame] | 225 | }; |
| 226 | |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 227 | static const struct options OptArray[] = { |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 228 | {"metric", N_ARG, ARG_METRIC, 0}, |
| 229 | {"mtu", N_ARG, ARG_MTU, 0}, |
| 230 | {"txqueuelen", N_ARG, ARG_TXQUEUELEN, 0}, |
| 231 | {"dstaddr", N_ARG, ARG_DSTADDR, 0}, |
| 232 | {"netmask", N_ARG, ARG_NETMASK, 0}, |
| 233 | {"broadcast", N_ARG | M_CLR, ARG_BROADCAST, IFF_BROADCAST}, |
Eric Andersen | bdfd0d7 | 2001-10-24 05:00:29 +0000 | [diff] [blame] | 234 | #ifdef CONFIG_FEATURE_IFCONFIG_HW |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 235 | {"hw", N_ARG, ARG_HW, 0}, |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 236 | #endif |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 237 | {"pointopoint", N_ARG | M_CLR, ARG_POINTOPOINT, IFF_POINTOPOINT}, |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 238 | #ifdef SIOCSKEEPALIVE |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 239 | {"keepalive", N_ARG, ARG_KEEPALIVE, 0}, |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 240 | #endif |
| 241 | #ifdef SIOCSOUTFILL |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 242 | {"outfill", N_ARG, ARG_OUTFILL, 0}, |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 243 | #endif |
Eric Andersen | bdfd0d7 | 2001-10-24 05:00:29 +0000 | [diff] [blame] | 244 | #ifdef CONFIG_FEATURE_IFCONFIG_MEMSTART_IOADDR_IRQ |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 245 | {"mem_start", N_ARG, ARG_MEM_START, 0}, |
| 246 | {"io_addr", N_ARG, ARG_IO_ADDR, 0}, |
| 247 | {"irq", N_ARG, ARG_IRQ, 0}, |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 248 | #endif |
Glenn L McGrath | 8ae4cab | 2002-11-26 09:02:06 +0000 | [diff] [blame] | 249 | #ifdef CONFIG_FEATURE_IPV6 |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 250 | {"add", N_ARG, ARG_ADD_DEL, 0}, |
| 251 | {"del", N_ARG, ARG_ADD_DEL, 0}, |
Eric Andersen | 51b8bd6 | 2002-07-03 11:46:38 +0000 | [diff] [blame] | 252 | #endif |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 253 | {"arp", N_CLR | M_SET, 0, IFF_NOARP}, |
| 254 | {"trailers", N_CLR | M_SET, 0, IFF_NOTRAILERS}, |
| 255 | {"promisc", N_SET | M_CLR, 0, IFF_PROMISC}, |
| 256 | {"multicast", N_SET | M_CLR, 0, IFF_MULTICAST}, |
| 257 | {"allmulti", N_SET | M_CLR, 0, IFF_ALLMULTI}, |
| 258 | {"dynamic", N_SET | M_CLR, 0, IFF_DYNAMIC}, |
| 259 | {"up", N_SET, 0, (IFF_UP | IFF_RUNNING)}, |
| 260 | {"down", N_CLR, 0, IFF_UP}, |
| 261 | {NULL, 0, ARG_HOSTNAME, (IFF_UP | IFF_RUNNING)} |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 262 | }; |
Eric Andersen | f15d4da | 2001-03-06 00:48:59 +0000 | [diff] [blame] | 263 | |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 264 | /* |
| 265 | * A couple of prototypes. |
| 266 | */ |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 267 | |
Eric Andersen | bdfd0d7 | 2001-10-24 05:00:29 +0000 | [diff] [blame] | 268 | #ifdef CONFIG_FEATURE_IFCONFIG_HW |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 269 | static int in_ether(char *bufp, struct sockaddr *sap); |
| 270 | #endif |
| 271 | |
Eric Andersen | bdfd0d7 | 2001-10-24 05:00:29 +0000 | [diff] [blame] | 272 | #ifdef CONFIG_FEATURE_IFCONFIG_STATUS |
Manuel Novoa III | 68ea1d0 | 2001-03-12 09:57:59 +0000 | [diff] [blame] | 273 | extern int interface_opt_a; |
| 274 | extern int display_interfaces(char *ifname); |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 275 | #endif |
| 276 | |
| 277 | /* |
| 278 | * Our main function. |
| 279 | */ |
| 280 | |
| 281 | int ifconfig_main(int argc, char **argv) |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 282 | { |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 283 | struct ifreq ifr; |
| 284 | struct sockaddr_in sai; |
Glenn L McGrath | 8ae4cab | 2002-11-26 09:02:06 +0000 | [diff] [blame] | 285 | #ifdef CONFIG_FEATURE_IPV6 |
Eric Andersen | 51b8bd6 | 2002-07-03 11:46:38 +0000 | [diff] [blame] | 286 | struct sockaddr_in6 sai6; |
| 287 | #endif |
Eric Andersen | bdfd0d7 | 2001-10-24 05:00:29 +0000 | [diff] [blame] | 288 | #ifdef CONFIG_FEATURE_IFCONFIG_HW |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 289 | struct sockaddr sa; |
| 290 | #endif |
| 291 | const struct arg1opt *a1op; |
| 292 | const struct options *op; |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 293 | int sockfd; /* socket fd we use to manipulate stuff with */ |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 294 | int goterr; |
| 295 | int selector; |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 296 | #ifdef CONFIG_FEATURE_IFCONFIG_BROADCAST_PLUS |
| 297 | unsigned int mask; |
| 298 | unsigned int did_flags; |
Glenn L McGrath | 393183d | 2003-05-26 14:07:50 +0000 | [diff] [blame] | 299 | unsigned int sai_hostname, sai_netmask; |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 300 | #else |
Manuel Novoa III | 4fb0b51 | 2001-08-10 06:02:23 +0000 | [diff] [blame] | 301 | unsigned char mask; |
| 302 | unsigned char did_flags; |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 303 | #endif |
| 304 | char *p; |
| 305 | char host[128]; |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 306 | |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 307 | goterr = 0; |
| 308 | did_flags = 0; |
| 309 | |
Manuel Novoa III | 68ea1d0 | 2001-03-12 09:57:59 +0000 | [diff] [blame] | 310 | /* skip argv[0] */ |
| 311 | ++argv; |
| 312 | --argc; |
| 313 | |
Eric Andersen | bdfd0d7 | 2001-10-24 05:00:29 +0000 | [diff] [blame] | 314 | #ifdef CONFIG_FEATURE_IFCONFIG_STATUS |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 315 | if ((argc > 0) && (((*argv)[0] == '-') && ((*argv)[1] == 'a') && !(*argv)[2])) { |
Manuel Novoa III | 68ea1d0 | 2001-03-12 09:57:59 +0000 | [diff] [blame] | 316 | interface_opt_a = 1; |
| 317 | --argc; |
| 318 | ++argv; |
| 319 | } |
| 320 | #endif |
| 321 | |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 322 | if (argc <= 1) { |
Eric Andersen | bdfd0d7 | 2001-10-24 05:00:29 +0000 | [diff] [blame] | 323 | #ifdef CONFIG_FEATURE_IFCONFIG_STATUS |
Manuel Novoa III | 68ea1d0 | 2001-03-12 09:57:59 +0000 | [diff] [blame] | 324 | return display_interfaces(argc ? *argv : NULL); |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 325 | #else |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 326 | bb_error_msg_and_die |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 327 | ("ifconfig was not compiled with interface status display support."); |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 328 | #endif |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 329 | } |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 330 | |
| 331 | /* Create a channel to the NET kernel. */ |
| 332 | if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 333 | bb_perror_msg_and_die("socket"); |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 334 | } |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 335 | |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 336 | /* get interface name */ |
| 337 | safe_strncpy(ifr.ifr_name, *argv, IFNAMSIZ); |
| 338 | |
| 339 | /* Process the remaining arguments. */ |
| 340 | while (*++argv != (char *) NULL) { |
| 341 | p = *argv; |
| 342 | mask = N_MASK; |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 343 | if (*p == '-') { /* If the arg starts with '-'... */ |
| 344 | ++p; /* advance past it and */ |
| 345 | mask = M_MASK; /* set the appropriate mask. */ |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 346 | } |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 347 | for (op = OptArray; op->name; op++) { /* Find table entry. */ |
| 348 | if (strcmp(p, op->name) == 0) { /* If name matches... */ |
| 349 | if ((mask &= op->flags)) { /* set the mask and go. */ |
| 350 | goto FOUND_ARG;; |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 351 | } |
| 352 | /* If we get here, there was a valid arg with an */ |
| 353 | /* invalid '-' prefix. */ |
| 354 | ++goterr; |
| 355 | goto LOOP; |
| 356 | } |
| 357 | } |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 358 | |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 359 | /* We fell through, so treat as possible hostname. */ |
| 360 | a1op = Arg1Opt + (sizeof(Arg1Opt) / sizeof(Arg1Opt[0])) - 1; |
| 361 | mask = op->arg_flags; |
| 362 | goto HOSTNAME; |
| 363 | |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 364 | FOUND_ARG: |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 365 | if (mask & ARG_MASK) { |
| 366 | mask = op->arg_flags; |
| 367 | a1op = Arg1Opt + (op - OptArray); |
| 368 | if (mask & A_NETMASK & did_flags) { |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 369 | bb_show_usage(); |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 370 | } |
| 371 | if (*++argv == NULL) { |
| 372 | if (mask & A_ARG_REQ) { |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 373 | bb_show_usage(); |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 374 | } else { |
| 375 | --argv; |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 376 | mask &= A_SET_AFTER; /* just for broadcast */ |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 377 | } |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 378 | } else { /* got an arg so process it */ |
| 379 | HOSTNAME: |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 380 | did_flags |= (mask & (A_NETMASK|A_HOSTNAME)); |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 381 | if (mask & A_CAST_HOST_COPY) { |
Eric Andersen | bdfd0d7 | 2001-10-24 05:00:29 +0000 | [diff] [blame] | 382 | #ifdef CONFIG_FEATURE_IFCONFIG_HW |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 383 | if (mask & A_CAST_RESOLVE) { |
| 384 | #endif |
Glenn L McGrath | 8ae4cab | 2002-11-26 09:02:06 +0000 | [diff] [blame] | 385 | #ifdef CONFIG_FEATURE_IPV6 |
Eric Andersen | 51b8bd6 | 2002-07-03 11:46:38 +0000 | [diff] [blame] | 386 | char *prefix; |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 387 | int prefix_len = 0; |
Eric Andersen | 51b8bd6 | 2002-07-03 11:46:38 +0000 | [diff] [blame] | 388 | #endif |
| 389 | |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 390 | safe_strncpy(host, *argv, (sizeof host)); |
Glenn L McGrath | 8ae4cab | 2002-11-26 09:02:06 +0000 | [diff] [blame] | 391 | #ifdef CONFIG_FEATURE_IPV6 |
Eric Andersen | 51b8bd6 | 2002-07-03 11:46:38 +0000 | [diff] [blame] | 392 | if ((prefix = strchr(host, '/'))) { |
| 393 | prefix_len = atol(prefix + 1); |
| 394 | if ((prefix_len < 0) || (prefix_len > 128)) { |
| 395 | ++goterr; |
| 396 | goto LOOP; |
| 397 | } |
| 398 | *prefix = 0; |
| 399 | } |
| 400 | #endif |
| 401 | |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 402 | sai.sin_family = AF_INET; |
| 403 | sai.sin_port = 0; |
Eric Andersen | cd8c436 | 2001-11-10 11:22:46 +0000 | [diff] [blame] | 404 | if (!strcmp(host, bb_INET_default)) { |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 405 | /* Default is special, meaning 0.0.0.0. */ |
| 406 | sai.sin_addr.s_addr = INADDR_ANY; |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 407 | #ifdef CONFIG_FEATURE_IFCONFIG_BROADCAST_PLUS |
| 408 | } else if (((host[0] == '+') && !host[1]) && (mask & A_BROADCAST) && |
| 409 | (did_flags & (A_NETMASK|A_HOSTNAME)) == (A_NETMASK|A_HOSTNAME)) { |
| 410 | /* + is special, meaning broadcast is derived. */ |
| 411 | sai.sin_addr.s_addr = (~sai_netmask) | (sai_hostname & sai_netmask); |
| 412 | #endif |
Glenn L McGrath | 8ae4cab | 2002-11-26 09:02:06 +0000 | [diff] [blame] | 413 | #ifdef CONFIG_FEATURE_IPV6 |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 414 | } else if (inet_pton(AF_INET6, host, &sai6.sin6_addr) > 0) { |
Eric Andersen | 51b8bd6 | 2002-07-03 11:46:38 +0000 | [diff] [blame] | 415 | int sockfd6; |
| 416 | struct in6_ifreq ifr6; |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 417 | |
| 418 | memcpy((char *) &ifr6.ifr6_addr, |
| 419 | (char *) &sai6.sin6_addr, |
| 420 | sizeof(struct in6_addr)); |
Eric Andersen | 51b8bd6 | 2002-07-03 11:46:38 +0000 | [diff] [blame] | 421 | |
| 422 | /* Create a channel to the NET kernel. */ |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 423 | if ((sockfd6 = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) { |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 424 | bb_perror_msg_and_die("socket6"); |
Eric Andersen | 51b8bd6 | 2002-07-03 11:46:38 +0000 | [diff] [blame] | 425 | } |
| 426 | if (ioctl(sockfd6, SIOGIFINDEX, &ifr) < 0) { |
| 427 | perror("SIOGIFINDEX"); |
| 428 | ++goterr; |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 429 | continue; |
Eric Andersen | 51b8bd6 | 2002-07-03 11:46:38 +0000 | [diff] [blame] | 430 | } |
| 431 | ifr6.ifr6_ifindex = ifr.ifr_ifindex; |
| 432 | ifr6.ifr6_prefixlen = prefix_len; |
| 433 | if (ioctl(sockfd6, a1op->selector, &ifr6) < 0) { |
| 434 | perror(a1op->name); |
| 435 | ++goterr; |
| 436 | } |
| 437 | continue; |
| 438 | #endif |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 439 | } else if (inet_aton(host, &sai.sin_addr) == 0) { |
| 440 | /* It's not a dotted quad. */ |
| 441 | ++goterr; |
| 442 | continue; |
| 443 | } |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 444 | #ifdef CONFIG_FEATURE_IFCONFIG_BROADCAST_PLUS |
| 445 | if (mask & A_HOSTNAME) { |
| 446 | sai_hostname = sai.sin_addr.s_addr; |
| 447 | } |
| 448 | if (mask & A_NETMASK) { |
| 449 | sai_netmask = sai.sin_addr.s_addr; |
| 450 | } |
| 451 | #endif |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 452 | p = (char *) &sai; |
Eric Andersen | bdfd0d7 | 2001-10-24 05:00:29 +0000 | [diff] [blame] | 453 | #ifdef CONFIG_FEATURE_IFCONFIG_HW |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 454 | } else { /* A_CAST_HOST_COPY_IN_ETHER */ |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 455 | /* This is the "hw" arg case. */ |
| 456 | if (strcmp("ether", *argv) || (*++argv == NULL)) { |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 457 | bb_show_usage(); |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 458 | } |
| 459 | safe_strncpy(host, *argv, (sizeof host)); |
| 460 | if (in_ether(host, &sa)) { |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 461 | bb_error_msg("invalid hw-addr %s", host); |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 462 | ++goterr; |
| 463 | continue; |
| 464 | } |
| 465 | p = (char *) &sa; |
| 466 | } |
| 467 | #endif |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 468 | memcpy((((char *) (&ifr)) + a1op->ifr_offset), |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 469 | p, sizeof(struct sockaddr)); |
| 470 | } else { |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 471 | unsigned int i = strtoul(*argv, NULL, 0); |
| 472 | |
| 473 | p = ((char *) (&ifr)) + a1op->ifr_offset; |
Eric Andersen | bdfd0d7 | 2001-10-24 05:00:29 +0000 | [diff] [blame] | 474 | #ifdef CONFIG_FEATURE_IFCONFIG_MEMSTART_IOADDR_IRQ |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 475 | if (mask & A_MAP_TYPE) { |
| 476 | if (ioctl(sockfd, SIOCGIFMAP, &ifr) < 0) { |
| 477 | ++goterr; |
| 478 | continue; |
| 479 | } |
| 480 | if ((mask & A_MAP_UCHAR) == A_MAP_UCHAR) { |
| 481 | *((unsigned char *) p) = i; |
| 482 | } else if (mask & A_MAP_USHORT) { |
| 483 | *((unsigned short *) p) = i; |
| 484 | } else { |
| 485 | *((unsigned long *) p) = i; |
| 486 | } |
| 487 | } else |
| 488 | #endif |
| 489 | if (mask & A_CAST_CHAR_PTR) { |
| 490 | *((caddr_t *) p) = (caddr_t) i; |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 491 | } else { /* A_CAST_INT */ |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 492 | *((int *) p) = i; |
| 493 | } |
| 494 | } |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 495 | |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 496 | if (ioctl(sockfd, a1op->selector, &ifr) < 0) { |
| 497 | perror(a1op->name); |
| 498 | ++goterr; |
| 499 | continue; |
| 500 | } |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 501 | #ifdef QUESTIONABLE_ALIAS_CASE |
| 502 | if (mask & A_COLON_CHK) { |
| 503 | /* |
| 504 | * Don't do the set_flag() if the address is an alias with |
| 505 | * a - at the end, since it's deleted already! - Roman |
| 506 | * |
| 507 | * Should really use regex.h here, not sure though how well |
| 508 | * it'll go with the cross-platform support etc. |
| 509 | */ |
| 510 | char *ptr; |
| 511 | short int found_colon = 0; |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 512 | |
| 513 | for (ptr = ifr.ifr_name; *ptr; ptr++) { |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 514 | if (*ptr == ':') { |
| 515 | found_colon++; |
| 516 | } |
| 517 | } |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 518 | |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 519 | if (found_colon && *(ptr - 1) == '-') { |
| 520 | continue; |
| 521 | } |
| 522 | } |
| 523 | #endif |
| 524 | } |
| 525 | if (!(mask & A_SET_AFTER)) { |
| 526 | continue; |
| 527 | } |
| 528 | mask = N_SET; |
| 529 | } |
| 530 | |
| 531 | if (ioctl(sockfd, SIOCGIFFLAGS, &ifr) < 0) { |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 532 | perror("SIOCGIFFLAGS"); |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 533 | ++goterr; |
| 534 | } else { |
| 535 | selector = op->selector; |
| 536 | if (mask & SET_MASK) { |
| 537 | ifr.ifr_flags |= selector; |
| 538 | } else { |
| 539 | ifr.ifr_flags &= ~selector; |
| 540 | } |
| 541 | if (ioctl(sockfd, SIOCSIFFLAGS, &ifr) < 0) { |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 542 | perror("SIOCSIFFLAGS"); |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 543 | ++goterr; |
| 544 | } |
| 545 | } |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 546 | LOOP: |
Eric Andersen | 2276d83 | 2002-07-11 11:11:56 +0000 | [diff] [blame] | 547 | continue; |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 548 | } /* end of while-loop */ |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 549 | |
| 550 | return goterr; |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 551 | } |
| 552 | |
Eric Andersen | bdfd0d7 | 2001-10-24 05:00:29 +0000 | [diff] [blame] | 553 | #ifdef CONFIG_FEATURE_IFCONFIG_HW |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 554 | /* Input an Ethernet address and convert to binary. */ |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 555 | static int in_ether(char *bufp, struct sockaddr *sap) |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 556 | { |
| 557 | unsigned char *ptr; |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 558 | int i, j; |
| 559 | unsigned char val; |
| 560 | unsigned char c; |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 561 | |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 562 | sap->sa_family = ARPHRD_ETHER; |
| 563 | ptr = sap->sa_data; |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 564 | |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 565 | i = 0; |
| 566 | do { |
| 567 | j = val = 0; |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 568 | |
| 569 | /* We might get a semicolon here - not required. */ |
| 570 | if (i && (*bufp == ':')) { |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 571 | bufp++; |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 572 | } |
| 573 | |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 574 | do { |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 575 | c = *bufp; |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 576 | if (((unsigned char)(c - '0')) <= 9) { |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 577 | c -= '0'; |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 578 | } else if (((unsigned char)((c|0x20) - 'a')) <= 5) { |
| 579 | c = (c|0x20) - ('a'-10); |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 580 | } else if (j && (c == ':' || c == 0)) { |
| 581 | break; |
| 582 | } else { |
| 583 | return -1; |
| 584 | } |
| 585 | ++bufp; |
| 586 | val <<= 4; |
| 587 | val += c; |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 588 | } while (++j < 2); |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 589 | *ptr++ = val; |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 590 | } while (++i < ETH_ALEN); |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 591 | |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 592 | return (int) (*bufp); /* Error if we don't end at end of string. */ |
Eric Andersen | f15d4da | 2001-03-06 00:48:59 +0000 | [diff] [blame] | 593 | } |
| 594 | #endif |