* Authors of the original ifconfig was:
* Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org>
*
- * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
/*
* IPV6 support added by Bart Visscher <magick@linux-fan.com>
*/
+//usage:#define ifconfig_trivial_usage
+//usage: IF_FEATURE_IFCONFIG_STATUS("[-a]") " interface [address]"
+//usage:#define ifconfig_full_usage "\n\n"
+//usage: "Configure a network interface\n"
+//usage: "\n"
+//usage: IF_FEATURE_IPV6(
+//usage: " [add ADDRESS[/PREFIXLEN]]\n")
+//usage: IF_FEATURE_IPV6(
+//usage: " [del ADDRESS[/PREFIXLEN]]\n")
+//usage: " [[-]broadcast [ADDRESS]] [[-]pointopoint [ADDRESS]]\n"
+//usage: " [netmask ADDRESS] [dstaddr ADDRESS]\n"
+//usage: IF_FEATURE_IFCONFIG_SLIP(
+//usage: " [outfill NN] [keepalive NN]\n")
+//usage: " " IF_FEATURE_IFCONFIG_HW("[hw ether" IF_FEATURE_HWIB("|infiniband")" ADDRESS] ") "[metric NN] [mtu NN]\n"
+//usage: " [[-]trailers] [[-]arp] [[-]allmulti]\n"
+//usage: " [multicast] [[-]promisc] [txqueuelen NN] [[-]dynamic]\n"
+//usage: IF_FEATURE_IFCONFIG_MEMSTART_IOADDR_IRQ(
+//usage: " [mem_start NN] [io_addr NN] [irq NN]\n")
+//usage: " [up|down] ..."
+
+#include "libbb.h"
+#include "inet_common.h"
#include <net/if.h>
#include <net/if_arp.h>
#include <netinet/in.h>
-#if defined(__GLIBC__) && __GLIBC__ >=2 && __GLIBC_MINOR__ >= 1
-#include <netpacket/packet.h>
-#include <net/ethernet.h>
-#else
-#include <sys/types.h>
-#include <netinet/if_ether.h>
+#ifdef HAVE_NET_ETHERNET_H
+# include <net/ethernet.h>
#endif
-#include "inet_common.h"
-#include "busybox.h"
#if ENABLE_FEATURE_IFCONFIG_SLIP
# include <net/if_slip.h>
struct arg1opt {
const char *name;
- int selector;
+ unsigned short selector;
unsigned short ifr_offset;
};
#define ifreq_offsetof(x) offsetof(struct ifreq, x)
static const struct arg1opt Arg1Opt[] = {
- {"SIOCSIFMETRIC", SIOCSIFMETRIC, ifreq_offsetof(ifr_metric)},
- {"SIOCSIFMTU", SIOCSIFMTU, ifreq_offsetof(ifr_mtu)},
- {"SIOCSIFTXQLEN", SIOCSIFTXQLEN, ifreq_offsetof(ifr_qlen)},
- {"SIOCSIFDSTADDR", SIOCSIFDSTADDR, ifreq_offsetof(ifr_dstaddr)},
- {"SIOCSIFNETMASK", SIOCSIFNETMASK, ifreq_offsetof(ifr_netmask)},
- {"SIOCSIFBRDADDR", SIOCSIFBRDADDR, ifreq_offsetof(ifr_broadaddr)},
+ { "SIFMETRIC", SIOCSIFMETRIC, ifreq_offsetof(ifr_metric) },
+ { "SIFMTU", SIOCSIFMTU, ifreq_offsetof(ifr_mtu) },
+ { "SIFTXQLEN", SIOCSIFTXQLEN, ifreq_offsetof(ifr_qlen) },
+ { "SIFDSTADDR", SIOCSIFDSTADDR, ifreq_offsetof(ifr_dstaddr) },
+ { "SIFNETMASK", SIOCSIFNETMASK, ifreq_offsetof(ifr_netmask) },
+ { "SIFBRDADDR", SIOCSIFBRDADDR, ifreq_offsetof(ifr_broadaddr) },
#if ENABLE_FEATURE_IFCONFIG_HW
- {"SIOCSIFHWADDR", SIOCSIFHWADDR, ifreq_offsetof(ifr_hwaddr)},
+ { "SIFHWADDR", SIOCSIFHWADDR, ifreq_offsetof(ifr_hwaddr) },
#endif
- {"SIOCSIFDSTADDR", SIOCSIFDSTADDR, ifreq_offsetof(ifr_dstaddr)},
+ { "SIFDSTADDR", SIOCSIFDSTADDR, ifreq_offsetof(ifr_dstaddr) },
#ifdef SIOCSKEEPALIVE
- {"SIOCSKEEPALIVE", SIOCSKEEPALIVE, ifreq_offsetof(ifr_data)},
+ { "SKEEPALIVE", SIOCSKEEPALIVE, ifreq_offsetof(ifr_data) },
#endif
#ifdef SIOCSOUTFILL
- {"SIOCSOUTFILL", SIOCSOUTFILL, ifreq_offsetof(ifr_data)},
+ { "SOUTFILL", SIOCSOUTFILL, ifreq_offsetof(ifr_data) },
#endif
#if ENABLE_FEATURE_IFCONFIG_MEMSTART_IOADDR_IRQ
- {"SIOCSIFMAP", SIOCSIFMAP, ifreq_offsetof(ifr_map.mem_start)},
- {"SIOCSIFMAP", SIOCSIFMAP, ifreq_offsetof(ifr_map.base_addr)},
- {"SIOCSIFMAP", SIOCSIFMAP, ifreq_offsetof(ifr_map.irq)},
+ { "SIFMAP", SIOCSIFMAP, ifreq_offsetof(ifr_map.mem_start) },
+ { "SIFMAP", SIOCSIFMAP, ifreq_offsetof(ifr_map.base_addr) },
+ { "SIFMAP", SIOCSIFMAP, ifreq_offsetof(ifr_map.irq) },
#endif
/* Last entry if for unmatched (possibly hostname) arg. */
#if ENABLE_FEATURE_IPV6
- {"SIOCSIFADDR", SIOCSIFADDR, ifreq_offsetof(ifr_addr)}, /* IPv6 version ignores the offset */
- {"SIOCDIFADDR", SIOCDIFADDR, ifreq_offsetof(ifr_addr)}, /* IPv6 version ignores the offset */
+ { "SIFADDR", SIOCSIFADDR, ifreq_offsetof(ifr_addr) }, /* IPv6 version ignores the offset */
+ { "DIFADDR", SIOCDIFADDR, ifreq_offsetof(ifr_addr) }, /* IPv6 version ignores the offset */
#endif
- {"SIOCSIFADDR", SIOCSIFADDR, ifreq_offsetof(ifr_addr)},
+ { "SIFADDR", SIOCSIFADDR, ifreq_offsetof(ifr_addr) },
};
static const struct options OptArray[] = {
- {"metric", N_ARG, ARG_METRIC, 0},
- {"mtu", N_ARG, ARG_MTU, 0},
- {"txqueuelen", N_ARG, ARG_TXQUEUELEN, 0},
- {"dstaddr", N_ARG, ARG_DSTADDR, 0},
- {"netmask", N_ARG, ARG_NETMASK, 0},
- {"broadcast", N_ARG | M_CLR, ARG_BROADCAST, IFF_BROADCAST},
+ { "metric", N_ARG, ARG_METRIC, 0 },
+ { "mtu", N_ARG, ARG_MTU, 0 },
+ { "txqueuelen", N_ARG, ARG_TXQUEUELEN, 0 },
+ { "dstaddr", N_ARG, ARG_DSTADDR, 0 },
+ { "netmask", N_ARG, ARG_NETMASK, 0 },
+ { "broadcast", N_ARG | M_CLR, ARG_BROADCAST, IFF_BROADCAST },
#if ENABLE_FEATURE_IFCONFIG_HW
- {"hw", N_ARG, ARG_HW, 0},
+ { "hw", N_ARG, ARG_HW, 0 },
#endif
- {"pointopoint", N_ARG | M_CLR, ARG_POINTOPOINT, IFF_POINTOPOINT},
+ { "pointopoint", N_ARG | M_CLR, ARG_POINTOPOINT, IFF_POINTOPOINT },
#ifdef SIOCSKEEPALIVE
- {"keepalive", N_ARG, ARG_KEEPALIVE, 0},
+ { "keepalive", N_ARG, ARG_KEEPALIVE, 0 },
#endif
#ifdef SIOCSOUTFILL
- {"outfill", N_ARG, ARG_OUTFILL, 0},
+ { "outfill", N_ARG, ARG_OUTFILL, 0 },
#endif
#if ENABLE_FEATURE_IFCONFIG_MEMSTART_IOADDR_IRQ
- {"mem_start", N_ARG, ARG_MEM_START, 0},
- {"io_addr", N_ARG, ARG_IO_ADDR, 0},
- {"irq", N_ARG, ARG_IRQ, 0},
+ { "mem_start", N_ARG, ARG_MEM_START, 0 },
+ { "io_addr", N_ARG, ARG_IO_ADDR, 0 },
+ { "irq", N_ARG, ARG_IRQ, 0 },
#endif
#if ENABLE_FEATURE_IPV6
- {"add", N_ARG, ARG_ADD_DEL, 0},
- {"del", N_ARG, ARG_ADD_DEL, 0},
-#endif
- {"arp", N_CLR | M_SET, 0, IFF_NOARP},
- {"trailers", N_CLR | M_SET, 0, IFF_NOTRAILERS},
- {"promisc", N_SET | M_CLR, 0, IFF_PROMISC},
- {"multicast", N_SET | M_CLR, 0, IFF_MULTICAST},
- {"allmulti", N_SET | M_CLR, 0, IFF_ALLMULTI},
- {"dynamic", N_SET | M_CLR, 0, IFF_DYNAMIC},
- {"up", N_SET, 0, (IFF_UP | IFF_RUNNING)},
- {"down", N_CLR, 0, IFF_UP},
- {NULL, 0, ARG_HOSTNAME, (IFF_UP | IFF_RUNNING)}
+ { "add", N_ARG, ARG_ADD_DEL, 0 },
+ { "del", N_ARG, ARG_ADD_DEL, 0 },
+#endif
+ { "arp", N_CLR | M_SET, 0, IFF_NOARP },
+ { "trailers", N_CLR | M_SET, 0, IFF_NOTRAILERS },
+ { "promisc", N_SET | M_CLR, 0, IFF_PROMISC },
+ { "multicast", N_SET | M_CLR, 0, IFF_MULTICAST },
+ { "allmulti", N_SET | M_CLR, 0, IFF_ALLMULTI },
+ { "dynamic", N_SET | M_CLR, 0, IFF_DYNAMIC },
+ { "up", N_SET, 0, (IFF_UP | IFF_RUNNING) },
+ { "down", N_CLR, 0, IFF_UP },
+ { NULL, 0, ARG_HOSTNAME, (IFF_UP | IFF_RUNNING) }
};
/*
* A couple of prototypes.
*/
-
#if ENABLE_FEATURE_IFCONFIG_HW
static int in_ether(const char *bufp, struct sockaddr *sap);
#endif
/*
* Our main function.
*/
-
-int ifconfig_main(int argc, char **argv);
-int ifconfig_main(int argc, char **argv)
+int ifconfig_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int ifconfig_main(int argc UNUSED_PARAM, char **argv)
{
struct ifreq ifr;
struct sockaddr_in sai;
/* skip argv[0] */
++argv;
- --argc;
#if ENABLE_FEATURE_IFCONFIG_STATUS
- if (argc > 0 && (argv[0][0] == '-' && argv[0][1] == 'a' && !argv[0][2])) {
+ if (argv[0] && (argv[0][0] == '-' && argv[0][1] == 'a' && !argv[0][2])) {
interface_opt_a = 1;
- --argc;
++argv;
}
#endif
- if (argc <= 1) {
+ if (!argv[0] || !argv[1]) { /* one or no args */
#if ENABLE_FEATURE_IFCONFIG_STATUS
- return display_interfaces(argc ? *argv : NULL);
+ return display_interfaces(argv[0] /* can be NULL */);
#else
bb_error_msg_and_die("no support for status display");
#endif
sockfd = xsocket(AF_INET, SOCK_DGRAM, 0);
/* get interface name */
- safe_strncpy(ifr.ifr_name, *argv, IFNAMSIZ);
+ strncpy_IFNAMSIZ(ifr.ifr_name, *argv);
/* Process the remaining arguments. */
while (*++argv != (char *) NULL) {
}
/* We fell through, so treat as possible hostname. */
- a1op = Arg1Opt + (sizeof(Arg1Opt) / sizeof(Arg1Opt[0])) - 1;
+ a1op = Arg1Opt + ARRAY_SIZE(Arg1Opt) - 1;
mask = op->arg_flags;
goto HOSTNAME;
#endif
sai.sin_family = AF_INET;
sai.sin_port = 0;
- if (!strcmp(host, bb_str_default)) {
+ if (strcmp(host, "default") == 0) {
/* Default is special, meaning 0.0.0.0. */
sai.sin_addr.s_addr = INADDR_ANY;
}
}
#endif
else {
+ len_and_sockaddr *lsa;
if (strcmp(host, "inet") == 0)
continue; /* compat stuff */
- len_and_sockaddr *lsa = xhost2sockaddr(host, 0);
+ lsa = xhost2sockaddr(host, 0);
#if ENABLE_FEATURE_IPV6
- if (lsa->sa.sa_family == AF_INET6) {
+ if (lsa->u.sa.sa_family == AF_INET6) {
int sockfd6;
struct in6_ifreq ifr6;
memcpy((char *) &ifr6.ifr6_addr,
- (char *) &(lsa->sin6.sin6_addr),
+ (char *) &(lsa->u.sin6.sin6_addr),
sizeof(struct in6_addr));
/* Create a channel to the NET kernel. */
sockfd6 = xsocket(AF_INET6, SOCK_DGRAM, 0);
- if (ioctl(sockfd6, SIOGIFINDEX, &ifr) < 0)
- bb_perror_msg_and_die("SIOGIFINDEX");
+ xioctl(sockfd6, SIOGIFINDEX, &ifr);
ifr6.ifr6_ifindex = ifr.ifr_ifindex;
ifr6.ifr6_prefixlen = prefix_len;
- if (ioctl(sockfd6, a1op->selector, &ifr6) < 0)
- bb_perror_msg_and_die(a1op->name);
+ ioctl_or_perror_and_die(sockfd6, a1op->selector, &ifr6, "SIOC%s", a1op->name);
if (ENABLE_FEATURE_CLEAN_UP)
free(lsa);
continue;
}
#endif
- sai.sin_addr = lsa->sin.sin_addr;
+ sai.sin_addr = lsa->u.sin.sin_addr;
if (ENABLE_FEATURE_CLEAN_UP)
free(lsa);
}
#if ENABLE_FEATURE_IFCONFIG_HW
} else { /* A_CAST_HOST_COPY_IN_ETHER */
/* This is the "hw" arg case. */
- if (strcmp("ether", *argv) || !*++argv)
+ smalluint hw_class= index_in_substrings("ether\0"
+ IF_FEATURE_HWIB("infiniband\0"), *argv) + 1;
+ if (!hw_class || !*++argv)
bb_show_usage();
/*safe_strncpy(host, *argv, sizeof(host));*/
host = *argv;
- if (in_ether(host, &sa))
+ if (hw_class == 1 ? in_ether(host, &sa) : in_ib(host, &sa))
bb_error_msg_and_die("invalid hw-addr %s", host);
p = (char *) &sa;
}
p = ((char *)&ifr) + a1op->ifr_offset;
#if ENABLE_FEATURE_IFCONFIG_MEMSTART_IOADDR_IRQ
if (mask & A_MAP_TYPE) {
- if (ioctl(sockfd, SIOCGIFMAP, &ifr) < 0)
- bb_perror_msg_and_die("SIOCGIFMAP");
+ xioctl(sockfd, SIOCGIFMAP, &ifr);
if ((mask & A_MAP_UCHAR) == A_MAP_UCHAR)
*((unsigned char *) p) = i;
else if (mask & A_MAP_USHORT)
*((int *) p) = i;
}
- if (ioctl(sockfd, a1op->selector, &ifr) < 0)
- bb_perror_msg_and_die(a1op->name);
+ ioctl_or_perror_and_die(sockfd, a1op->selector, &ifr, "SIOC%s", a1op->name);
#ifdef QUESTIONABLE_ALIAS_CASE
if (mask & A_COLON_CHK) {
/*
mask = N_SET;
}
- if (ioctl(sockfd, SIOCGIFFLAGS, &ifr) < 0)
- bb_perror_msg_and_die("SIOCGIFFLAGS");
+ xioctl(sockfd, SIOCGIFFLAGS, &ifr);
selector = op->selector;
if (mask & SET_MASK)
ifr.ifr_flags |= selector;
else
ifr.ifr_flags &= ~selector;
- if (ioctl(sockfd, SIOCSIFFLAGS, &ifr) < 0)
- bb_perror_msg_and_die("SIOCSIFFLAGS");
+ xioctl(sockfd, SIOCSIFFLAGS, &ifr);
} /* while () */
if (ENABLE_FEATURE_CLEAN_UP)
unsigned char c;
sap->sa_family = ARPHRD_ETHER;
- ptr = sap->sa_data;
+ ptr = (char *) sap->sa_data;
i = 0;
do {
projects / oweals / busybox.git / blobdiff