Bernhard Reutner-Fischer | dac7ff1 | 2006-04-12 17:55:51 +0000 | [diff] [blame] | 1 | /* vi: set sw=4 ts=4: */ |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 2 | /* ifconfig |
| 3 | * |
| 4 | * Similar to the standard Unix ifconfig, but with only the necessary |
| 5 | * parts for AF_INET, and without any printing of if info (for now). |
| 6 | * |
| 7 | * Bjorn Wesen, Axis Communications AB |
| 8 | * |
| 9 | * |
Eric Andersen | c7bda1c | 2004-03-15 08:29:22 +0000 | [diff] [blame] | 10 | * Authors of the original ifconfig was: |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 11 | * Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org> |
| 12 | * |
Bernhard Reutner-Fischer | dac7ff1 | 2006-04-12 17:55:51 +0000 | [diff] [blame] | 13 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 14 | */ |
| 15 | |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 16 | /* |
| 17 | * Heavily modified by Manuel Novoa III Mar 6, 2001 |
| 18 | * |
| 19 | * From initial port to busybox, removed most of the redundancy by |
| 20 | * converting to a table-driven approach. Added several (optional) |
| 21 | * args missing from initial port. |
| 22 | * |
Manuel Novoa III | 68ea1d0 | 2001-03-12 09:57:59 +0000 | [diff] [blame] | 23 | * Still missing: media, tunnel. |
Eric Andersen | 51b8bd6 | 2002-07-03 11:46:38 +0000 | [diff] [blame] | 24 | * |
| 25 | * 2002-04-20 |
| 26 | * IPV6 support added by Bart Visscher <magick@linux-fan.com> |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 27 | */ |
| 28 | |
Eric Andersen | ab4e19a | 2003-01-14 08:54:08 +0000 | [diff] [blame] | 29 | #include <net/if.h> |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 30 | #include <net/if_arp.h> |
Eric Andersen | cd8c436 | 2001-11-10 11:22:46 +0000 | [diff] [blame] | 31 | #include <netinet/in.h> |
Denis Vlasenko | 83e5d6f | 2006-12-18 21:49:06 +0000 | [diff] [blame] | 32 | #if defined(__GLIBC__) && __GLIBC__ >=2 && __GLIBC_MINOR__ >= 1 |
Eric Andersen | ab4e19a | 2003-01-14 08:54:08 +0000 | [diff] [blame] | 33 | #include <netpacket/packet.h> |
| 34 | #include <net/ethernet.h> |
| 35 | #else |
Rob Landley | 0d38301 | 2005-05-03 22:30:08 +0000 | [diff] [blame] | 36 | #include <sys/types.h> |
| 37 | #include <netinet/if_ether.h> |
Eric Andersen | ab4e19a | 2003-01-14 08:54:08 +0000 | [diff] [blame] | 38 | #endif |
Eric Andersen | cd8c436 | 2001-11-10 11:22:46 +0000 | [diff] [blame] | 39 | #include "inet_common.h" |
Denis Vlasenko | b6adbf1 | 2007-05-26 19:00:18 +0000 | [diff] [blame] | 40 | #include "libbb.h" |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 41 | |
Denis Vlasenko | 04b30ba | 2006-11-21 14:26:37 +0000 | [diff] [blame] | 42 | #if ENABLE_FEATURE_IFCONFIG_SLIP |
Eric Andersen | ab4e19a | 2003-01-14 08:54:08 +0000 | [diff] [blame] | 43 | # include <net/if_slip.h> |
Eric Andersen | f15d4da | 2001-03-06 00:48:59 +0000 | [diff] [blame] | 44 | #endif |
| 45 | |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 46 | /* I don't know if this is needed for busybox or not. Anyone? */ |
| 47 | #define QUESTIONABLE_ALIAS_CASE |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 48 | |
| 49 | |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 50 | /* Defines for glibc2.0 users. */ |
| 51 | #ifndef SIOCSIFTXQLEN |
Glenn L McGrath | 8ae4cab | 2002-11-26 09:02:06 +0000 | [diff] [blame] | 52 | # define SIOCSIFTXQLEN 0x8943 |
| 53 | # define SIOCGIFTXQLEN 0x8942 |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 54 | #endif |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 55 | |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 56 | /* ifr_qlen is ifru_ivalue, but it isn't present in 2.0 kernel headers */ |
| 57 | #ifndef ifr_qlen |
Glenn L McGrath | 8ae4cab | 2002-11-26 09:02:06 +0000 | [diff] [blame] | 58 | # define ifr_qlen ifr_ifru.ifru_mtu |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 59 | #endif |
Eric Andersen | f15d4da | 2001-03-06 00:48:59 +0000 | [diff] [blame] | 60 | |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 61 | #ifndef IFF_DYNAMIC |
Glenn L McGrath | 8ae4cab | 2002-11-26 09:02:06 +0000 | [diff] [blame] | 62 | # define IFF_DYNAMIC 0x8000 /* dialup device with changing addresses */ |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 63 | #endif |
Eric Andersen | f15d4da | 2001-03-06 00:48:59 +0000 | [diff] [blame] | 64 | |
Denis Vlasenko | 04b30ba | 2006-11-21 14:26:37 +0000 | [diff] [blame] | 65 | #if ENABLE_FEATURE_IPV6 |
Eric Andersen | 51b8bd6 | 2002-07-03 11:46:38 +0000 | [diff] [blame] | 66 | struct in6_ifreq { |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 67 | struct in6_addr ifr6_addr; |
| 68 | uint32_t ifr6_prefixlen; |
| 69 | int ifr6_ifindex; |
Eric Andersen | 51b8bd6 | 2002-07-03 11:46:38 +0000 | [diff] [blame] | 70 | }; |
| 71 | #endif |
| 72 | |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 73 | /* |
| 74 | * Here are the bit masks for the "flags" member of struct options below. |
| 75 | * N_ signifies no arg prefix; M_ signifies arg prefixed by '-'. |
| 76 | * CLR clears the flag; SET sets the flag; ARG signifies (optional) arg. |
Eric Andersen | f15d4da | 2001-03-06 00:48:59 +0000 | [diff] [blame] | 77 | */ |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 78 | #define N_CLR 0x01 |
| 79 | #define M_CLR 0x02 |
| 80 | #define N_SET 0x04 |
| 81 | #define M_SET 0x08 |
| 82 | #define N_ARG 0x10 |
| 83 | #define M_ARG 0x20 |
| 84 | |
| 85 | #define M_MASK (M_CLR | M_SET | M_ARG) |
| 86 | #define N_MASK (N_CLR | N_SET | N_ARG) |
| 87 | #define SET_MASK (N_SET | M_SET) |
| 88 | #define CLR_MASK (N_CLR | M_CLR) |
| 89 | #define SET_CLR_MASK (SET_MASK | CLR_MASK) |
| 90 | #define ARG_MASK (M_ARG | N_ARG) |
| 91 | |
| 92 | /* |
| 93 | * Here are the bit masks for the "arg_flags" member of struct options below. |
| 94 | */ |
| 95 | |
| 96 | /* |
| 97 | * cast type: |
| 98 | * 00 int |
| 99 | * 01 char * |
| 100 | * 02 HOST_COPY in_ether |
| 101 | * 03 HOST_COPY INET_resolve |
| 102 | */ |
| 103 | #define A_CAST_TYPE 0x03 |
| 104 | /* |
| 105 | * map type: |
| 106 | * 00 not a map type (mem_start, io_addr, irq) |
| 107 | * 04 memstart (unsigned long) |
| 108 | * 08 io_addr (unsigned short) |
| 109 | * 0C irq (unsigned char) |
| 110 | */ |
| 111 | #define A_MAP_TYPE 0x0C |
| 112 | #define A_ARG_REQ 0x10 /* Set if an arg is required. */ |
| 113 | #define A_NETMASK 0x20 /* Set if netmask (check for multiple sets). */ |
| 114 | #define A_SET_AFTER 0x40 /* Set a flag at the end. */ |
| 115 | #define A_COLON_CHK 0x80 /* Is this needed? See below. */ |
Denis Vlasenko | 04b30ba | 2006-11-21 14:26:37 +0000 | [diff] [blame] | 116 | #if ENABLE_FEATURE_IFCONFIG_BROADCAST_PLUS |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 117 | #define A_HOSTNAME 0x100 /* Set if it is ip addr. */ |
| 118 | #define A_BROADCAST 0x200 /* Set if it is broadcast addr. */ |
| 119 | #else |
| 120 | #define A_HOSTNAME 0 |
| 121 | #define A_BROADCAST 0 |
| 122 | #endif |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 123 | |
| 124 | /* |
| 125 | * These defines are for dealing with the A_CAST_TYPE field. |
| 126 | */ |
| 127 | #define A_CAST_CHAR_PTR 0x01 |
| 128 | #define A_CAST_RESOLVE 0x01 |
| 129 | #define A_CAST_HOST_COPY 0x02 |
| 130 | #define A_CAST_HOST_COPY_IN_ETHER A_CAST_HOST_COPY |
| 131 | #define A_CAST_HOST_COPY_RESOLVE (A_CAST_HOST_COPY | A_CAST_RESOLVE) |
| 132 | |
| 133 | /* |
| 134 | * These defines are for dealing with the A_MAP_TYPE field. |
| 135 | */ |
| 136 | #define A_MAP_ULONG 0x04 /* memstart */ |
| 137 | #define A_MAP_USHORT 0x08 /* io_addr */ |
| 138 | #define A_MAP_UCHAR 0x0C /* irq */ |
| 139 | |
| 140 | /* |
| 141 | * Define the bit masks signifying which operations to perform for each arg. |
| 142 | */ |
| 143 | |
| 144 | #define ARG_METRIC (A_ARG_REQ /*| A_CAST_INT*/) |
| 145 | #define ARG_MTU (A_ARG_REQ /*| A_CAST_INT*/) |
| 146 | #define ARG_TXQUEUELEN (A_ARG_REQ /*| A_CAST_INT*/) |
| 147 | #define ARG_MEM_START (A_ARG_REQ | A_MAP_ULONG) |
Eric Andersen | 72f9a42 | 2001-10-28 05:12:20 +0000 | [diff] [blame] | 148 | #define ARG_IO_ADDR (A_ARG_REQ | A_MAP_ULONG) |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 149 | #define ARG_IRQ (A_ARG_REQ | A_MAP_UCHAR) |
| 150 | #define ARG_DSTADDR (A_ARG_REQ | A_CAST_HOST_COPY_RESOLVE) |
| 151 | #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] | 152 | #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] | 153 | #define ARG_HW (A_ARG_REQ | A_CAST_HOST_COPY_IN_ETHER) |
Eric Andersen | b6e58d2 | 2003-11-14 03:04:08 +0000 | [diff] [blame] | 154 | #define ARG_POINTOPOINT (A_ARG_REQ | A_CAST_HOST_COPY_RESOLVE | A_SET_AFTER) |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 155 | #define ARG_KEEPALIVE (A_ARG_REQ | A_CAST_CHAR_PTR) |
| 156 | #define ARG_OUTFILL (A_ARG_REQ | A_CAST_CHAR_PTR) |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 157 | #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] | 158 | #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] | 159 | |
| 160 | |
| 161 | /* |
| 162 | * Set up the tables. Warning! They must have corresponding order! |
| 163 | */ |
| 164 | |
| 165 | struct arg1opt { |
| 166 | const char *name; |
Rob Landley | 0d38301 | 2005-05-03 22:30:08 +0000 | [diff] [blame] | 167 | int selector; |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 168 | unsigned short ifr_offset; |
| 169 | }; |
| 170 | |
| 171 | struct options { |
| 172 | const char *name; |
Denis Vlasenko | 04b30ba | 2006-11-21 14:26:37 +0000 | [diff] [blame] | 173 | #if ENABLE_FEATURE_IFCONFIG_BROADCAST_PLUS |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 174 | const unsigned int flags:6; |
| 175 | const unsigned int arg_flags:10; |
| 176 | #else |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 177 | const unsigned char flags; |
Manuel Novoa III | 4fb0b51 | 2001-08-10 06:02:23 +0000 | [diff] [blame] | 178 | const unsigned char arg_flags; |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 179 | #endif |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 180 | const unsigned short selector; |
| 181 | }; |
| 182 | |
| 183 | #define ifreq_offsetof(x) offsetof(struct ifreq, x) |
| 184 | |
| 185 | static const struct arg1opt Arg1Opt[] = { |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 186 | {"SIOCSIFMETRIC", SIOCSIFMETRIC, ifreq_offsetof(ifr_metric)}, |
| 187 | {"SIOCSIFMTU", SIOCSIFMTU, ifreq_offsetof(ifr_mtu)}, |
| 188 | {"SIOCSIFTXQLEN", SIOCSIFTXQLEN, ifreq_offsetof(ifr_qlen)}, |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 189 | {"SIOCSIFDSTADDR", SIOCSIFDSTADDR, ifreq_offsetof(ifr_dstaddr)}, |
| 190 | {"SIOCSIFNETMASK", SIOCSIFNETMASK, ifreq_offsetof(ifr_netmask)}, |
| 191 | {"SIOCSIFBRDADDR", SIOCSIFBRDADDR, ifreq_offsetof(ifr_broadaddr)}, |
Denis Vlasenko | 04b30ba | 2006-11-21 14:26:37 +0000 | [diff] [blame] | 192 | #if ENABLE_FEATURE_IFCONFIG_HW |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 193 | {"SIOCSIFHWADDR", SIOCSIFHWADDR, ifreq_offsetof(ifr_hwaddr)}, |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 194 | #endif |
| 195 | {"SIOCSIFDSTADDR", SIOCSIFDSTADDR, ifreq_offsetof(ifr_dstaddr)}, |
Eric Andersen | f15d4da | 2001-03-06 00:48:59 +0000 | [diff] [blame] | 196 | #ifdef SIOCSKEEPALIVE |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 197 | {"SIOCSKEEPALIVE", SIOCSKEEPALIVE, ifreq_offsetof(ifr_data)}, |
Eric Andersen | f15d4da | 2001-03-06 00:48:59 +0000 | [diff] [blame] | 198 | #endif |
| 199 | #ifdef SIOCSOUTFILL |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 200 | {"SIOCSOUTFILL", SIOCSOUTFILL, ifreq_offsetof(ifr_data)}, |
Eric Andersen | f15d4da | 2001-03-06 00:48:59 +0000 | [diff] [blame] | 201 | #endif |
Denis Vlasenko | 04b30ba | 2006-11-21 14:26:37 +0000 | [diff] [blame] | 202 | #if ENABLE_FEATURE_IFCONFIG_MEMSTART_IOADDR_IRQ |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 203 | {"SIOCSIFMAP", SIOCSIFMAP, ifreq_offsetof(ifr_map.mem_start)}, |
| 204 | {"SIOCSIFMAP", SIOCSIFMAP, ifreq_offsetof(ifr_map.base_addr)}, |
| 205 | {"SIOCSIFMAP", SIOCSIFMAP, ifreq_offsetof(ifr_map.irq)}, |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 206 | #endif |
| 207 | /* Last entry if for unmatched (possibly hostname) arg. */ |
Denis Vlasenko | 04b30ba | 2006-11-21 14:26:37 +0000 | [diff] [blame] | 208 | #if ENABLE_FEATURE_IPV6 |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 209 | {"SIOCSIFADDR", SIOCSIFADDR, ifreq_offsetof(ifr_addr)}, /* IPv6 version ignores the offset */ |
| 210 | {"SIOCDIFADDR", SIOCDIFADDR, ifreq_offsetof(ifr_addr)}, /* IPv6 version ignores the offset */ |
Eric Andersen | 51b8bd6 | 2002-07-03 11:46:38 +0000 | [diff] [blame] | 211 | #endif |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 212 | {"SIOCSIFADDR", SIOCSIFADDR, ifreq_offsetof(ifr_addr)}, |
Eric Andersen | f15d4da | 2001-03-06 00:48:59 +0000 | [diff] [blame] | 213 | }; |
| 214 | |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 215 | static const struct options OptArray[] = { |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 216 | {"metric", N_ARG, ARG_METRIC, 0}, |
| 217 | {"mtu", N_ARG, ARG_MTU, 0}, |
| 218 | {"txqueuelen", N_ARG, ARG_TXQUEUELEN, 0}, |
| 219 | {"dstaddr", N_ARG, ARG_DSTADDR, 0}, |
| 220 | {"netmask", N_ARG, ARG_NETMASK, 0}, |
| 221 | {"broadcast", N_ARG | M_CLR, ARG_BROADCAST, IFF_BROADCAST}, |
Denis Vlasenko | 04b30ba | 2006-11-21 14:26:37 +0000 | [diff] [blame] | 222 | #if ENABLE_FEATURE_IFCONFIG_HW |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 223 | {"hw", N_ARG, ARG_HW, 0}, |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 224 | #endif |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 225 | {"pointopoint", N_ARG | M_CLR, ARG_POINTOPOINT, IFF_POINTOPOINT}, |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 226 | #ifdef SIOCSKEEPALIVE |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 227 | {"keepalive", N_ARG, ARG_KEEPALIVE, 0}, |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 228 | #endif |
| 229 | #ifdef SIOCSOUTFILL |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 230 | {"outfill", N_ARG, ARG_OUTFILL, 0}, |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 231 | #endif |
Denis Vlasenko | 04b30ba | 2006-11-21 14:26:37 +0000 | [diff] [blame] | 232 | #if ENABLE_FEATURE_IFCONFIG_MEMSTART_IOADDR_IRQ |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 233 | {"mem_start", N_ARG, ARG_MEM_START, 0}, |
| 234 | {"io_addr", N_ARG, ARG_IO_ADDR, 0}, |
| 235 | {"irq", N_ARG, ARG_IRQ, 0}, |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 236 | #endif |
Denis Vlasenko | 04b30ba | 2006-11-21 14:26:37 +0000 | [diff] [blame] | 237 | #if ENABLE_FEATURE_IPV6 |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 238 | {"add", N_ARG, ARG_ADD_DEL, 0}, |
| 239 | {"del", N_ARG, ARG_ADD_DEL, 0}, |
Eric Andersen | 51b8bd6 | 2002-07-03 11:46:38 +0000 | [diff] [blame] | 240 | #endif |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 241 | {"arp", N_CLR | M_SET, 0, IFF_NOARP}, |
| 242 | {"trailers", N_CLR | M_SET, 0, IFF_NOTRAILERS}, |
| 243 | {"promisc", N_SET | M_CLR, 0, IFF_PROMISC}, |
| 244 | {"multicast", N_SET | M_CLR, 0, IFF_MULTICAST}, |
| 245 | {"allmulti", N_SET | M_CLR, 0, IFF_ALLMULTI}, |
| 246 | {"dynamic", N_SET | M_CLR, 0, IFF_DYNAMIC}, |
| 247 | {"up", N_SET, 0, (IFF_UP | IFF_RUNNING)}, |
| 248 | {"down", N_CLR, 0, IFF_UP}, |
| 249 | {NULL, 0, ARG_HOSTNAME, (IFF_UP | IFF_RUNNING)} |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 250 | }; |
Eric Andersen | f15d4da | 2001-03-06 00:48:59 +0000 | [diff] [blame] | 251 | |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 252 | /* |
| 253 | * A couple of prototypes. |
| 254 | */ |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 255 | |
Denis Vlasenko | 04b30ba | 2006-11-21 14:26:37 +0000 | [diff] [blame] | 256 | #if ENABLE_FEATURE_IFCONFIG_HW |
| 257 | static int in_ether(const char *bufp, struct sockaddr *sap); |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 258 | #endif |
| 259 | |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 260 | /* |
| 261 | * Our main function. |
| 262 | */ |
| 263 | |
Denis Vlasenko | 06af216 | 2007-02-03 17:28:39 +0000 | [diff] [blame] | 264 | int ifconfig_main(int argc, char **argv); |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 265 | int ifconfig_main(int argc, char **argv) |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 266 | { |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 267 | struct ifreq ifr; |
| 268 | struct sockaddr_in sai; |
Denis Vlasenko | 04b30ba | 2006-11-21 14:26:37 +0000 | [diff] [blame] | 269 | #if ENABLE_FEATURE_IFCONFIG_HW |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 270 | struct sockaddr sa; |
| 271 | #endif |
| 272 | const struct arg1opt *a1op; |
| 273 | const struct options *op; |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 274 | int sockfd; /* socket fd we use to manipulate stuff with */ |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 275 | int selector; |
Denis Vlasenko | 04b30ba | 2006-11-21 14:26:37 +0000 | [diff] [blame] | 276 | #if ENABLE_FEATURE_IFCONFIG_BROADCAST_PLUS |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 277 | unsigned int mask; |
| 278 | unsigned int did_flags; |
Glenn L McGrath | 393183d | 2003-05-26 14:07:50 +0000 | [diff] [blame] | 279 | unsigned int sai_hostname, sai_netmask; |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 280 | #else |
Manuel Novoa III | 4fb0b51 | 2001-08-10 06:02:23 +0000 | [diff] [blame] | 281 | unsigned char mask; |
| 282 | unsigned char did_flags; |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 283 | #endif |
| 284 | char *p; |
Denis Vlasenko | 5096246 | 2006-11-21 20:32:38 +0000 | [diff] [blame] | 285 | /*char host[128];*/ |
| 286 | const char *host = NULL; /* make gcc happy */ |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 287 | |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 288 | did_flags = 0; |
Denis Vlasenko | 04b30ba | 2006-11-21 14:26:37 +0000 | [diff] [blame] | 289 | #if ENABLE_FEATURE_IFCONFIG_BROADCAST_PLUS |
Eric Andersen | 0cc7e62 | 2003-06-20 09:23:34 +0000 | [diff] [blame] | 290 | sai_hostname = 0; |
| 291 | sai_netmask = 0; |
Eric Andersen | 9d9cecf | 2003-06-21 09:05:49 +0000 | [diff] [blame] | 292 | #endif |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 293 | |
Manuel Novoa III | 68ea1d0 | 2001-03-12 09:57:59 +0000 | [diff] [blame] | 294 | /* skip argv[0] */ |
| 295 | ++argv; |
| 296 | --argc; |
| 297 | |
Denis Vlasenko | 04b30ba | 2006-11-21 14:26:37 +0000 | [diff] [blame] | 298 | #if ENABLE_FEATURE_IFCONFIG_STATUS |
Denis Vlasenko | 2813ce2 | 2006-11-27 10:03:21 +0000 | [diff] [blame] | 299 | if (argc > 0 && (argv[0][0] == '-' && argv[0][1] == 'a' && !argv[0][2])) { |
Manuel Novoa III | 68ea1d0 | 2001-03-12 09:57:59 +0000 | [diff] [blame] | 300 | interface_opt_a = 1; |
| 301 | --argc; |
| 302 | ++argv; |
| 303 | } |
| 304 | #endif |
| 305 | |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 306 | if (argc <= 1) { |
Denis Vlasenko | 04b30ba | 2006-11-21 14:26:37 +0000 | [diff] [blame] | 307 | #if ENABLE_FEATURE_IFCONFIG_STATUS |
Manuel Novoa III | 68ea1d0 | 2001-03-12 09:57:59 +0000 | [diff] [blame] | 308 | return display_interfaces(argc ? *argv : NULL); |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 309 | #else |
Denis Vlasenko | 04b30ba | 2006-11-21 14:26:37 +0000 | [diff] [blame] | 310 | bb_error_msg_and_die("no support for status display"); |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 311 | #endif |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 312 | } |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 313 | |
| 314 | /* Create a channel to the NET kernel. */ |
Rob Landley | d921b2e | 2006-08-03 15:41:12 +0000 | [diff] [blame] | 315 | sockfd = xsocket(AF_INET, SOCK_DGRAM, 0); |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 316 | |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 317 | /* get interface name */ |
| 318 | safe_strncpy(ifr.ifr_name, *argv, IFNAMSIZ); |
| 319 | |
| 320 | /* Process the remaining arguments. */ |
| 321 | while (*++argv != (char *) NULL) { |
| 322 | p = *argv; |
| 323 | mask = N_MASK; |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 324 | if (*p == '-') { /* If the arg starts with '-'... */ |
| 325 | ++p; /* advance past it and */ |
| 326 | mask = M_MASK; /* set the appropriate mask. */ |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 327 | } |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 328 | for (op = OptArray; op->name; op++) { /* Find table entry. */ |
| 329 | if (strcmp(p, op->name) == 0) { /* If name matches... */ |
Denis Vlasenko | 04b30ba | 2006-11-21 14:26:37 +0000 | [diff] [blame] | 330 | mask &= op->flags; |
Denis Vlasenko | 2813ce2 | 2006-11-27 10:03:21 +0000 | [diff] [blame] | 331 | if (mask) /* set the mask and go. */ |
Bernhard Reutner-Fischer | 0b42a6a | 2005-10-07 11:34:50 +0000 | [diff] [blame] | 332 | goto FOUND_ARG; |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 333 | /* If we get here, there was a valid arg with an */ |
| 334 | /* invalid '-' prefix. */ |
Denis Vlasenko | 2813ce2 | 2006-11-27 10:03:21 +0000 | [diff] [blame] | 335 | bb_error_msg_and_die("bad: '%s'", p-1); |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 336 | } |
| 337 | } |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 338 | |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 339 | /* We fell through, so treat as possible hostname. */ |
Denis Vlasenko | 80b8b39 | 2007-06-25 10:55:35 +0000 | [diff] [blame^] | 340 | a1op = Arg1Opt + ARRAY_SIZE(Arg1Opt) - 1; |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 341 | mask = op->arg_flags; |
| 342 | goto HOSTNAME; |
| 343 | |
Denis Vlasenko | 04b30ba | 2006-11-21 14:26:37 +0000 | [diff] [blame] | 344 | FOUND_ARG: |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 345 | if (mask & ARG_MASK) { |
| 346 | mask = op->arg_flags; |
| 347 | a1op = Arg1Opt + (op - OptArray); |
Denis Vlasenko | 2813ce2 | 2006-11-27 10:03:21 +0000 | [diff] [blame] | 348 | if (mask & A_NETMASK & did_flags) |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 349 | bb_show_usage(); |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 350 | if (*++argv == NULL) { |
Denis Vlasenko | 2813ce2 | 2006-11-27 10:03:21 +0000 | [diff] [blame] | 351 | if (mask & A_ARG_REQ) |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 352 | bb_show_usage(); |
Denis Vlasenko | 2813ce2 | 2006-11-27 10:03:21 +0000 | [diff] [blame] | 353 | --argv; |
| 354 | mask &= A_SET_AFTER; /* just for broadcast */ |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 355 | } else { /* got an arg so process it */ |
Denis Vlasenko | 04b30ba | 2006-11-21 14:26:37 +0000 | [diff] [blame] | 356 | HOSTNAME: |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 357 | did_flags |= (mask & (A_NETMASK|A_HOSTNAME)); |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 358 | if (mask & A_CAST_HOST_COPY) { |
Denis Vlasenko | 04b30ba | 2006-11-21 14:26:37 +0000 | [diff] [blame] | 359 | #if ENABLE_FEATURE_IFCONFIG_HW |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 360 | if (mask & A_CAST_RESOLVE) { |
| 361 | #endif |
Denis Vlasenko | 04b30ba | 2006-11-21 14:26:37 +0000 | [diff] [blame] | 362 | #if ENABLE_FEATURE_IPV6 |
Eric Andersen | 51b8bd6 | 2002-07-03 11:46:38 +0000 | [diff] [blame] | 363 | char *prefix; |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 364 | int prefix_len = 0; |
Eric Andersen | 51b8bd6 | 2002-07-03 11:46:38 +0000 | [diff] [blame] | 365 | #endif |
Denis Vlasenko | 5096246 | 2006-11-21 20:32:38 +0000 | [diff] [blame] | 366 | /*safe_strncpy(host, *argv, (sizeof host));*/ |
| 367 | host = *argv; |
Denis Vlasenko | 04b30ba | 2006-11-21 14:26:37 +0000 | [diff] [blame] | 368 | #if ENABLE_FEATURE_IPV6 |
Denis Vlasenko | 1385899 | 2006-10-08 12:49:22 +0000 | [diff] [blame] | 369 | prefix = strchr(host, '/'); |
| 370 | if (prefix) { |
Denis Vlasenko | 2813ce2 | 2006-11-27 10:03:21 +0000 | [diff] [blame] | 371 | prefix_len = xatou_range(prefix + 1, 0, 128); |
| 372 | *prefix = '\0'; |
Eric Andersen | 51b8bd6 | 2002-07-03 11:46:38 +0000 | [diff] [blame] | 373 | } |
| 374 | #endif |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 375 | sai.sin_family = AF_INET; |
| 376 | sai.sin_port = 0; |
Denis Vlasenko | 7ca3921 | 2006-11-21 20:34:21 +0000 | [diff] [blame] | 377 | if (!strcmp(host, bb_str_default)) { |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 378 | /* Default is special, meaning 0.0.0.0. */ |
| 379 | sai.sin_addr.s_addr = INADDR_ANY; |
Denis Vlasenko | 2813ce2 | 2006-11-27 10:03:21 +0000 | [diff] [blame] | 380 | } |
Denis Vlasenko | 04b30ba | 2006-11-21 14:26:37 +0000 | [diff] [blame] | 381 | #if ENABLE_FEATURE_IFCONFIG_BROADCAST_PLUS |
Denis Vlasenko | 2813ce2 | 2006-11-27 10:03:21 +0000 | [diff] [blame] | 382 | else if ((host[0] == '+' && !host[1]) && (mask & A_BROADCAST) |
| 383 | && (did_flags & (A_NETMASK|A_HOSTNAME)) == (A_NETMASK|A_HOSTNAME) |
| 384 | ) { |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 385 | /* + is special, meaning broadcast is derived. */ |
| 386 | sai.sin_addr.s_addr = (~sai_netmask) | (sai_hostname & sai_netmask); |
Denis Vlasenko | 2813ce2 | 2006-11-27 10:03:21 +0000 | [diff] [blame] | 387 | } |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 388 | #endif |
Denis Vlasenko | 1094452 | 2007-02-04 02:40:27 +0000 | [diff] [blame] | 389 | else { |
Denis Vlasenko | 58875ae | 2007-03-22 22:22:10 +0000 | [diff] [blame] | 390 | len_and_sockaddr *lsa; |
Denis Vlasenko | 1787e22 | 2007-03-22 18:56:00 +0000 | [diff] [blame] | 391 | if (strcmp(host, "inet") == 0) |
| 392 | continue; /* compat stuff */ |
Denis Vlasenko | 58875ae | 2007-03-22 22:22:10 +0000 | [diff] [blame] | 393 | lsa = xhost2sockaddr(host, 0); |
Denis Vlasenko | 04b30ba | 2006-11-21 14:26:37 +0000 | [diff] [blame] | 394 | #if ENABLE_FEATURE_IPV6 |
Denis Vlasenko | 1094452 | 2007-02-04 02:40:27 +0000 | [diff] [blame] | 395 | if (lsa->sa.sa_family == AF_INET6) { |
| 396 | int sockfd6; |
| 397 | struct in6_ifreq ifr6; |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 398 | |
Denis Vlasenko | 1094452 | 2007-02-04 02:40:27 +0000 | [diff] [blame] | 399 | memcpy((char *) &ifr6.ifr6_addr, |
| 400 | (char *) &(lsa->sin6.sin6_addr), |
| 401 | sizeof(struct in6_addr)); |
Eric Andersen | 51b8bd6 | 2002-07-03 11:46:38 +0000 | [diff] [blame] | 402 | |
Denis Vlasenko | 1094452 | 2007-02-04 02:40:27 +0000 | [diff] [blame] | 403 | /* Create a channel to the NET kernel. */ |
| 404 | sockfd6 = xsocket(AF_INET6, SOCK_DGRAM, 0); |
| 405 | if (ioctl(sockfd6, SIOGIFINDEX, &ifr) < 0) |
| 406 | bb_perror_msg_and_die("SIOGIFINDEX"); |
| 407 | ifr6.ifr6_ifindex = ifr.ifr_ifindex; |
| 408 | ifr6.ifr6_prefixlen = prefix_len; |
| 409 | if (ioctl(sockfd6, a1op->selector, &ifr6) < 0) |
| 410 | bb_perror_msg_and_die(a1op->name); |
| 411 | if (ENABLE_FEATURE_CLEAN_UP) |
| 412 | free(lsa); |
| 413 | continue; |
| 414 | } |
Eric Andersen | 51b8bd6 | 2002-07-03 11:46:38 +0000 | [diff] [blame] | 415 | #endif |
Denis Vlasenko | 1094452 | 2007-02-04 02:40:27 +0000 | [diff] [blame] | 416 | sai.sin_addr = lsa->sin.sin_addr; |
| 417 | if (ENABLE_FEATURE_CLEAN_UP) |
| 418 | free(lsa); |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 419 | } |
Denis Vlasenko | 04b30ba | 2006-11-21 14:26:37 +0000 | [diff] [blame] | 420 | #if ENABLE_FEATURE_IFCONFIG_BROADCAST_PLUS |
Denis Vlasenko | 2813ce2 | 2006-11-27 10:03:21 +0000 | [diff] [blame] | 421 | if (mask & A_HOSTNAME) |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 422 | sai_hostname = sai.sin_addr.s_addr; |
Denis Vlasenko | 2813ce2 | 2006-11-27 10:03:21 +0000 | [diff] [blame] | 423 | if (mask & A_NETMASK) |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 424 | sai_netmask = sai.sin_addr.s_addr; |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 425 | #endif |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 426 | p = (char *) &sai; |
Denis Vlasenko | 04b30ba | 2006-11-21 14:26:37 +0000 | [diff] [blame] | 427 | #if ENABLE_FEATURE_IFCONFIG_HW |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 428 | } else { /* A_CAST_HOST_COPY_IN_ETHER */ |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 429 | /* This is the "hw" arg case. */ |
Denis Vlasenko | 2813ce2 | 2006-11-27 10:03:21 +0000 | [diff] [blame] | 430 | if (strcmp("ether", *argv) || !*++argv) |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 431 | bb_show_usage(); |
Denis Vlasenko | 5096246 | 2006-11-21 20:32:38 +0000 | [diff] [blame] | 432 | /*safe_strncpy(host, *argv, sizeof(host));*/ |
| 433 | host = *argv; |
Denis Vlasenko | 2813ce2 | 2006-11-27 10:03:21 +0000 | [diff] [blame] | 434 | if (in_ether(host, &sa)) |
| 435 | bb_error_msg_and_die("invalid hw-addr %s", host); |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 436 | p = (char *) &sa; |
| 437 | } |
| 438 | #endif |
Denis Vlasenko | 04b30ba | 2006-11-21 14:26:37 +0000 | [diff] [blame] | 439 | memcpy( (((char *)&ifr) + a1op->ifr_offset), |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 440 | p, sizeof(struct sockaddr)); |
| 441 | } else { |
Denis Vlasenko | 2813ce2 | 2006-11-27 10:03:21 +0000 | [diff] [blame] | 442 | /* FIXME: error check?? */ |
Rob Landley | c819ca9 | 2005-11-22 17:09:14 +0000 | [diff] [blame] | 443 | unsigned long i = strtoul(*argv, NULL, 0); |
Denis Vlasenko | 04b30ba | 2006-11-21 14:26:37 +0000 | [diff] [blame] | 444 | p = ((char *)&ifr) + a1op->ifr_offset; |
| 445 | #if ENABLE_FEATURE_IFCONFIG_MEMSTART_IOADDR_IRQ |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 446 | if (mask & A_MAP_TYPE) { |
Denis Vlasenko | 2813ce2 | 2006-11-27 10:03:21 +0000 | [diff] [blame] | 447 | if (ioctl(sockfd, SIOCGIFMAP, &ifr) < 0) |
| 448 | bb_perror_msg_and_die("SIOCGIFMAP"); |
| 449 | if ((mask & A_MAP_UCHAR) == A_MAP_UCHAR) |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 450 | *((unsigned char *) p) = i; |
Denis Vlasenko | 2813ce2 | 2006-11-27 10:03:21 +0000 | [diff] [blame] | 451 | else if (mask & A_MAP_USHORT) |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 452 | *((unsigned short *) p) = i; |
Denis Vlasenko | 2813ce2 | 2006-11-27 10:03:21 +0000 | [diff] [blame] | 453 | else |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 454 | *((unsigned long *) p) = i; |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 455 | } else |
| 456 | #endif |
Denis Vlasenko | 2813ce2 | 2006-11-27 10:03:21 +0000 | [diff] [blame] | 457 | if (mask & A_CAST_CHAR_PTR) |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 458 | *((caddr_t *) p) = (caddr_t) i; |
Denis Vlasenko | 2813ce2 | 2006-11-27 10:03:21 +0000 | [diff] [blame] | 459 | else /* A_CAST_INT */ |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 460 | *((int *) p) = i; |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 461 | } |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 462 | |
Denis Vlasenko | 2813ce2 | 2006-11-27 10:03:21 +0000 | [diff] [blame] | 463 | if (ioctl(sockfd, a1op->selector, &ifr) < 0) |
| 464 | bb_perror_msg_and_die(a1op->name); |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 465 | #ifdef QUESTIONABLE_ALIAS_CASE |
| 466 | if (mask & A_COLON_CHK) { |
| 467 | /* |
| 468 | * Don't do the set_flag() if the address is an alias with |
Denis Vlasenko | 04b30ba | 2006-11-21 14:26:37 +0000 | [diff] [blame] | 469 | * a '-' at the end, since it's deleted already! - Roman |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 470 | * |
| 471 | * Should really use regex.h here, not sure though how well |
Eric Andersen | c7bda1c | 2004-03-15 08:29:22 +0000 | [diff] [blame] | 472 | * it'll go with the cross-platform support etc. |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 473 | */ |
| 474 | char *ptr; |
| 475 | short int found_colon = 0; |
Denis Vlasenko | 2813ce2 | 2006-11-27 10:03:21 +0000 | [diff] [blame] | 476 | for (ptr = ifr.ifr_name; *ptr; ptr++) |
| 477 | if (*ptr == ':') |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 478 | found_colon++; |
Denis Vlasenko | 2813ce2 | 2006-11-27 10:03:21 +0000 | [diff] [blame] | 479 | if (found_colon && ptr[-1] == '-') |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 480 | continue; |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 481 | } |
| 482 | #endif |
| 483 | } |
Denis Vlasenko | 2813ce2 | 2006-11-27 10:03:21 +0000 | [diff] [blame] | 484 | if (!(mask & A_SET_AFTER)) |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 485 | continue; |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 486 | mask = N_SET; |
| 487 | } |
| 488 | |
Denis Vlasenko | 2813ce2 | 2006-11-27 10:03:21 +0000 | [diff] [blame] | 489 | if (ioctl(sockfd, SIOCGIFFLAGS, &ifr) < 0) |
| 490 | bb_perror_msg_and_die("SIOCGIFFLAGS"); |
| 491 | selector = op->selector; |
| 492 | if (mask & SET_MASK) |
| 493 | ifr.ifr_flags |= selector; |
| 494 | else |
| 495 | ifr.ifr_flags &= ~selector; |
| 496 | if (ioctl(sockfd, SIOCSIFFLAGS, &ifr) < 0) |
| 497 | bb_perror_msg_and_die("SIOCSIFFLAGS"); |
Denis Vlasenko | bf0a201 | 2006-12-26 10:42:51 +0000 | [diff] [blame] | 498 | } /* while () */ |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 499 | |
Denis Vlasenko | 2813ce2 | 2006-11-27 10:03:21 +0000 | [diff] [blame] | 500 | if (ENABLE_FEATURE_CLEAN_UP) |
| 501 | close(sockfd); |
| 502 | return 0; |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 503 | } |
| 504 | |
Denis Vlasenko | 04b30ba | 2006-11-21 14:26:37 +0000 | [diff] [blame] | 505 | #if ENABLE_FEATURE_IFCONFIG_HW |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 506 | /* Input an Ethernet address and convert to binary. */ |
Denis Vlasenko | 04b30ba | 2006-11-21 14:26:37 +0000 | [diff] [blame] | 507 | static int in_ether(const char *bufp, struct sockaddr *sap) |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 508 | { |
Mike Frysinger | 3978abd | 2005-09-24 23:52:09 +0000 | [diff] [blame] | 509 | char *ptr; |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 510 | int i, j; |
| 511 | unsigned char val; |
| 512 | unsigned char c; |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 513 | |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 514 | sap->sa_family = ARPHRD_ETHER; |
| 515 | ptr = sap->sa_data; |
Glenn L McGrath | baf55a8 | 2002-08-22 18:22:10 +0000 | [diff] [blame] | 516 | |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 517 | i = 0; |
| 518 | do { |
| 519 | j = val = 0; |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 520 | |
| 521 | /* We might get a semicolon here - not required. */ |
| 522 | if (i && (*bufp == ':')) { |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 523 | bufp++; |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 524 | } |
| 525 | |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 526 | do { |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 527 | c = *bufp; |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 528 | if (((unsigned char)(c - '0')) <= 9) { |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 529 | c -= '0'; |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 530 | } else if (((unsigned char)((c|0x20) - 'a')) <= 5) { |
| 531 | c = (c|0x20) - ('a'-10); |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 532 | } else if (j && (c == ':' || c == 0)) { |
| 533 | break; |
| 534 | } else { |
| 535 | return -1; |
| 536 | } |
| 537 | ++bufp; |
| 538 | val <<= 4; |
| 539 | val += c; |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 540 | } while (++j < 2); |
Manuel Novoa III | df351d6 | 2001-03-08 22:57:00 +0000 | [diff] [blame] | 541 | *ptr++ = val; |
Manuel Novoa III | a668558 | 2002-12-27 17:42:01 +0000 | [diff] [blame] | 542 | } while (++i < ETH_ALEN); |
Eric Andersen | ec45595 | 2001-02-14 08:11:27 +0000 | [diff] [blame] | 543 | |
Denis Vlasenko | d9e15f2 | 2006-11-27 16:49:55 +0000 | [diff] [blame] | 544 | return *bufp; /* Error if we don't end at end of string. */ |
Eric Andersen | f15d4da | 2001-03-06 00:48:59 +0000 | [diff] [blame] | 545 | } |
| 546 | #endif |