Add "Broadcast +" support back in. Also cut the size down some. Not well
tested, but it is the holidays...
This commit is contained in:
Manuel Novoa III
parent
87444efbab
commit
a6685585d8
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@ -15,7 +15,7 @@
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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 1.20 2002/11/26 09:02:05 bug1 Exp $
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* $Id: ifconfig.c,v 1.21 2002/12/27 17:42:01 mjn3 Exp $
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*
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*/
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@ -119,6 +119,13 @@ struct in6_ifreq {
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#define A_NETMASK 0x20 /* Set if netmask (check for multiple sets). */
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#define A_SET_AFTER 0x40 /* Set a flag at the end. */
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#define A_COLON_CHK 0x80 /* Is this needed? See below. */
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#ifdef CONFIG_FEATURE_IFCONFIG_BROADCAST_PLUS
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#define A_HOSTNAME 0x100 /* Set if it is ip addr. */
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#define A_BROADCAST 0x200 /* Set if it is broadcast addr. */
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#else
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#define A_HOSTNAME 0
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#define A_BROADCAST 0
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#endif
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/*
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* These defines are for dealing with the A_CAST_TYPE field.
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@ -148,12 +155,12 @@ struct in6_ifreq {
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#define ARG_IRQ (A_ARG_REQ | A_MAP_UCHAR)
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#define ARG_DSTADDR (A_ARG_REQ | A_CAST_HOST_COPY_RESOLVE)
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#define ARG_NETMASK (A_ARG_REQ | A_CAST_HOST_COPY_RESOLVE | A_NETMASK)
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#define ARG_BROADCAST (A_ARG_REQ | A_CAST_HOST_COPY_RESOLVE | A_SET_AFTER)
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#define ARG_BROADCAST (A_ARG_REQ | A_CAST_HOST_COPY_RESOLVE | A_SET_AFTER | A_BROADCAST)
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#define ARG_HW (A_ARG_REQ | A_CAST_HOST_COPY_IN_ETHER)
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#define ARG_POINTOPOINT (A_CAST_HOST_COPY_RESOLVE | A_SET_AFTER)
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#define ARG_KEEPALIVE (A_ARG_REQ | A_CAST_CHAR_PTR)
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#define ARG_OUTFILL (A_ARG_REQ | A_CAST_CHAR_PTR)
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#define ARG_HOSTNAME (A_CAST_HOST_COPY_RESOLVE | A_SET_AFTER | A_COLON_CHK)
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#define ARG_HOSTNAME (A_CAST_HOST_COPY_RESOLVE | A_SET_AFTER | A_COLON_CHK | A_HOSTNAME)
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#define ARG_ADD_DEL (A_CAST_HOST_COPY_RESOLVE | A_SET_AFTER)
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@ -169,78 +176,83 @@ struct arg1opt {
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struct options {
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const char *name;
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#ifdef CONFIG_FEATURE_IFCONFIG_BROADCAST_PLUS
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const unsigned int flags:6;
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const unsigned int arg_flags:10;
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#else
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const unsigned char flags;
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const unsigned char arg_flags;
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#endif
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const unsigned short selector;
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};
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#define ifreq_offsetof(x) offsetof(struct ifreq, x)
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static const struct arg1opt Arg1Opt[] = {
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{"SIOCSIFMETRIC", SIOCSIFMETRIC, ifreq_offsetof(ifr_metric)},
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{"SIOCSIFMTU", SIOCSIFMTU, ifreq_offsetof(ifr_mtu)},
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{"SIOCSIFTXQLEN", SIOCSIFTXQLEN, ifreq_offsetof(ifr_qlen)},
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{"SIOCSIFMETRIC", SIOCSIFMETRIC, ifreq_offsetof(ifr_metric)},
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{"SIOCSIFMTU", SIOCSIFMTU, ifreq_offsetof(ifr_mtu)},
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{"SIOCSIFTXQLEN", SIOCSIFTXQLEN, ifreq_offsetof(ifr_qlen)},
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{"SIOCSIFDSTADDR", SIOCSIFDSTADDR, ifreq_offsetof(ifr_dstaddr)},
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{"SIOCSIFNETMASK", SIOCSIFNETMASK, ifreq_offsetof(ifr_netmask)},
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{"SIOCSIFBRDADDR", SIOCSIFBRDADDR, ifreq_offsetof(ifr_broadaddr)},
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#ifdef CONFIG_FEATURE_IFCONFIG_HW
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{"SIOCSIFHWADDR", SIOCSIFHWADDR, ifreq_offsetof(ifr_hwaddr)},
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{"SIOCSIFHWADDR", SIOCSIFHWADDR, ifreq_offsetof(ifr_hwaddr)},
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#endif
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{"SIOCSIFDSTADDR", SIOCSIFDSTADDR, ifreq_offsetof(ifr_dstaddr)},
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#ifdef SIOCSKEEPALIVE
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{"SIOCSKEEPALIVE", SIOCSKEEPALIVE, ifreq_offsetof(ifr_data)},
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#endif
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#ifdef SIOCSOUTFILL
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{"SIOCSOUTFILL", SIOCSOUTFILL, ifreq_offsetof(ifr_data)},
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{"SIOCSOUTFILL", SIOCSOUTFILL, ifreq_offsetof(ifr_data)},
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#endif
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#ifdef CONFIG_FEATURE_IFCONFIG_MEMSTART_IOADDR_IRQ
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{"SIOCSIFMAP", SIOCSIFMAP, ifreq_offsetof(ifr_map.mem_start)},
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{"SIOCSIFMAP", SIOCSIFMAP, ifreq_offsetof(ifr_map.base_addr)},
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{"SIOCSIFMAP", SIOCSIFMAP, ifreq_offsetof(ifr_map.irq)},
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{"SIOCSIFMAP", SIOCSIFMAP, ifreq_offsetof(ifr_map.mem_start)},
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{"SIOCSIFMAP", SIOCSIFMAP, ifreq_offsetof(ifr_map.base_addr)},
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{"SIOCSIFMAP", SIOCSIFMAP, ifreq_offsetof(ifr_map.irq)},
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#endif
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/* Last entry if for unmatched (possibly hostname) arg. */
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#ifdef CONFIG_FEATURE_IPV6
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{"SIOCSIFADDR", SIOCSIFADDR, ifreq_offsetof(ifr_addr)}, /* IPv6 version ignores the offset */
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{"SIOCDIFADDR", SIOCDIFADDR, ifreq_offsetof(ifr_addr)}, /* IPv6 version ignores the offset */
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{"SIOCSIFADDR", SIOCSIFADDR, ifreq_offsetof(ifr_addr)}, /* IPv6 version ignores the offset */
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{"SIOCDIFADDR", SIOCDIFADDR, ifreq_offsetof(ifr_addr)}, /* IPv6 version ignores the offset */
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#endif
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{"SIOCSIFADDR", SIOCSIFADDR, ifreq_offsetof(ifr_addr)},
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{"SIOCSIFADDR", SIOCSIFADDR, ifreq_offsetof(ifr_addr)},
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};
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static const struct options OptArray[] = {
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{"metric", N_ARG, ARG_METRIC, 0},
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{"mtu", N_ARG, ARG_MTU, 0},
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{"txqueuelen", N_ARG, ARG_TXQUEUELEN, 0},
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{"dstaddr", N_ARG, ARG_DSTADDR, 0},
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{"netmask", N_ARG, ARG_NETMASK, 0},
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{"broadcast", N_ARG | M_CLR, ARG_BROADCAST, IFF_BROADCAST},
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{"metric", N_ARG, ARG_METRIC, 0},
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{"mtu", N_ARG, ARG_MTU, 0},
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{"txqueuelen", N_ARG, ARG_TXQUEUELEN, 0},
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{"dstaddr", N_ARG, ARG_DSTADDR, 0},
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{"netmask", N_ARG, ARG_NETMASK, 0},
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{"broadcast", N_ARG | M_CLR, ARG_BROADCAST, IFF_BROADCAST},
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#ifdef CONFIG_FEATURE_IFCONFIG_HW
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{"hw", N_ARG, ARG_HW, 0},
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{"hw", N_ARG, ARG_HW, 0},
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#endif
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{"pointopoint", N_ARG | M_CLR, ARG_POINTOPOINT, IFF_POINTOPOINT},
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#ifdef SIOCSKEEPALIVE
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{"keepalive", N_ARG, ARG_KEEPALIVE, 0},
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{"keepalive", N_ARG, ARG_KEEPALIVE, 0},
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#endif
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#ifdef SIOCSOUTFILL
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{"outfill", N_ARG, ARG_OUTFILL, 0},
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{"outfill", N_ARG, ARG_OUTFILL, 0},
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#endif
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#ifdef CONFIG_FEATURE_IFCONFIG_MEMSTART_IOADDR_IRQ
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{"mem_start", N_ARG, ARG_MEM_START, 0},
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{"io_addr", N_ARG, ARG_IO_ADDR, 0},
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{"irq", N_ARG, ARG_IRQ, 0},
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{"mem_start", N_ARG, ARG_MEM_START, 0},
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{"io_addr", N_ARG, ARG_IO_ADDR, 0},
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{"irq", N_ARG, ARG_IRQ, 0},
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#endif
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#ifdef CONFIG_FEATURE_IPV6
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{"add", N_ARG, ARG_ADD_DEL, 0},
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{"del", N_ARG, ARG_ADD_DEL, 0},
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{"add", N_ARG, ARG_ADD_DEL, 0},
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{"del", N_ARG, ARG_ADD_DEL, 0},
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#endif
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{"arp", N_CLR | M_SET, 0, IFF_NOARP},
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{"trailers", N_CLR | M_SET, 0, IFF_NOTRAILERS},
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{"promisc", N_SET | M_CLR, 0, IFF_PROMISC},
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{"multicast", N_SET | M_CLR, 0, IFF_MULTICAST},
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{"allmulti", N_SET | M_CLR, 0, IFF_ALLMULTI},
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{"dynamic", N_SET | M_CLR, 0, IFF_DYNAMIC},
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{"up", N_SET, 0, (IFF_UP | IFF_RUNNING)},
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{"down", N_CLR, 0, IFF_UP},
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{NULL, 0, ARG_HOSTNAME, (IFF_UP | IFF_RUNNING)}
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{"arp", N_CLR | M_SET, 0, IFF_NOARP},
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{"trailers", N_CLR | M_SET, 0, IFF_NOTRAILERS},
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{"promisc", N_SET | M_CLR, 0, IFF_PROMISC},
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{"multicast", N_SET | M_CLR, 0, IFF_MULTICAST},
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{"allmulti", N_SET | M_CLR, 0, IFF_ALLMULTI},
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{"dynamic", N_SET | M_CLR, 0, IFF_DYNAMIC},
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{"up", N_SET, 0, (IFF_UP | IFF_RUNNING)},
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{"down", N_CLR, 0, IFF_UP},
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{NULL, 0, ARG_HOSTNAME, (IFF_UP | IFF_RUNNING)}
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};
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/*
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@ -264,7 +276,6 @@ 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 sai;
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#ifdef CONFIG_FEATURE_IPV6
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struct sockaddr_in6 sai6;
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#endif
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@ -276,10 +287,16 @@ int ifconfig_main(int argc, char **argv)
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int sockfd; /* socket fd we use to manipulate stuff with */
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int goterr;
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int selector;
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char *p;
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char host[128];
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#ifdef CONFIG_FEATURE_IFCONFIG_BROADCAST_PLUS
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unsigned int mask;
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unsigned int did_flags;
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in_addr_t sai_hostname, sai_netmask;
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#else
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unsigned char mask;
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unsigned char did_flags;
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#endif
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char *p;
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char host[128];
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goterr = 0;
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did_flags = 0;
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@ -289,7 +306,7 @@ int ifconfig_main(int argc, char **argv)
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--argc;
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#ifdef CONFIG_FEATURE_IFCONFIG_STATUS
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if ((argc > 0) && (strcmp(*argv, "-a") == 0)) {
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if ((argc > 0) && (((*argv)[0] == '-') && ((*argv)[1] == 'a') && !(*argv)[2])) {
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interface_opt_a = 1;
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--argc;
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++argv;
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@ -354,7 +371,7 @@ int ifconfig_main(int argc, char **argv)
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}
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} else { /* got an arg so process it */
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HOSTNAME:
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did_flags |= (mask & A_NETMASK);
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did_flags |= (mask & (A_NETMASK|A_HOSTNAME));
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if (mask & A_CAST_HOST_COPY) {
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#ifdef CONFIG_FEATURE_IFCONFIG_HW
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if (mask & A_CAST_RESOLVE) {
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@ -381,10 +398,14 @@ int ifconfig_main(int argc, char **argv)
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if (!strcmp(host, bb_INET_default)) {
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/* Default is special, meaning 0.0.0.0. */
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sai.sin_addr.s_addr = INADDR_ANY;
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#ifdef CONFIG_FEATURE_IFCONFIG_BROADCAST_PLUS
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} else if (((host[0] == '+') && !host[1]) && (mask & A_BROADCAST) &&
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(did_flags & (A_NETMASK|A_HOSTNAME)) == (A_NETMASK|A_HOSTNAME)) {
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/* + is special, meaning broadcast is derived. */
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sai.sin_addr.s_addr = (~sai_netmask) | (sai_hostname & sai_netmask);
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#endif
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#ifdef CONFIG_FEATURE_IPV6
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} else
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if (inet_pton(AF_INET6, host, &sai6.sin6_addr) >
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0) {
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} else if (inet_pton(AF_INET6, host, &sai6.sin6_addr) > 0) {
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int sockfd6;
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struct in6_ifreq ifr6;
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@ -393,8 +414,7 @@ int ifconfig_main(int argc, char **argv)
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sizeof(struct in6_addr));
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/* Create a channel to the NET kernel. */
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if ((sockfd6 =
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socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
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if ((sockfd6 = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
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perror_msg_and_die("socket6");
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}
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if (ioctl(sockfd6, SIOGIFINDEX, &ifr) < 0) {
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@ -415,6 +435,14 @@ int ifconfig_main(int argc, char **argv)
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++goterr;
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continue;
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}
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#ifdef CONFIG_FEATURE_IFCONFIG_BROADCAST_PLUS
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if (mask & A_HOSTNAME) {
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sai_hostname = sai.sin_addr.s_addr;
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}
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if (mask & A_NETMASK) {
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sai_netmask = sai.sin_addr.s_addr;
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}
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#endif
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p = (char *) &sai;
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#ifdef CONFIG_FEATURE_IFCONFIG_HW
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} else { /* A_CAST_HOST_COPY_IN_ETHER */
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@ -528,22 +556,21 @@ static int in_ether(char *bufp, struct sockaddr *sap)
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sap->sa_family = ARPHRD_ETHER;
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ptr = sap->sa_data;
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for (i = 0; i < ETH_ALEN; i++) {
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val = 0;
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i = 0;
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do {
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j = val = 0;
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/* We might get a semicolon here - not required. */
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if (i && (*bufp == ':')) {
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bufp++;
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}
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for (j = 0; j < 2; j++) {
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do {
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c = *bufp;
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if (c >= '0' && c <= '9') {
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if (((unsigned char)(c - '0')) <= 9) {
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c -= '0';
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} else if (c >= 'a' && c <= 'f') {
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c -= ('a' - 10);
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} else if (c >= 'A' && c <= 'F') {
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c -= ('A' - 10);
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} else if (((unsigned char)((c|0x20) - 'a')) <= 5) {
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c = (c|0x20) - ('a'-10);
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} else if (j && (c == ':' || c == 0)) {
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break;
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} else {
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@ -552,9 +579,9 @@ static int in_ether(char *bufp, struct sockaddr *sap)
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++bufp;
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val <<= 4;
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val += c;
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}
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} while (++j < 2);
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*ptr++ = val;
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}
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} while (++i < ETH_ALEN);
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return (int) (*bufp); /* Error if we don't end at end of string. */
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}
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