Index: ifconfig.c
===================================================================
--- ifconfig.c (nonexistent)
+++ ifconfig.c (revision 5)
@@ -0,0 +1,1191 @@
+/*
+ * ifconfig This file contains an implementation of the command
+ * that either displays or sets the characteristics of
+ * one or more of the system's networking interfaces.
+ *
+ * Version: $Id: ifconfig.c,v 1.59 2011-01-01 03:22:31 ecki Exp $
+ *
+ * Author: Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org>
+ * and others. Copyright 1993 MicroWalt Corporation
+ *
+ * This program is free software; you can redistribute it
+ * and/or modify it under the terms of the GNU General
+ * Public License as published by the Free Software
+ * Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * Patched to support 'add' and 'del' keywords for INET(4) addresses
+ * by Mrs. Brisby <mrs.brisby@nimh.org>
+ *
+ * {1.34} - 19980630 - Arnaldo Carvalho de Melo <acme@conectiva.com.br>
+ * - gettext instead of catgets for i18n
+ * 10/1998 - Andi Kleen. Use interface list primitives.
+ * 20001008 - Bernd Eckenfels, Patch from RH for setting mtu
+ * (default AF was wrong)
+ * 20010404 - Arnaldo Carvalho de Melo, use setlocale
+ */
+
+#define DFLT_AF "inet"
+
+#include "config.h"
+
+#include <features.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <netinet/in.h>
+#include <net/if.h>
+#include <net/if_arp.h>
+#include <stdio.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <netdb.h>
+
+/* Ugh. But libc5 doesn't provide POSIX types. */
+#include <asm/types.h>
+
+
+#if HAVE_HWSLIP
+#include <linux/if_slip.h>
+#endif
+
+#if HAVE_AFINET6
+
+#ifndef _LINUX_IN6_H
+/*
+ * This is in linux/include/net/ipv6.h.
+ */
+
+struct in6_ifreq {
+ struct in6_addr ifr6_addr;
+ __u32 ifr6_prefixlen;
+ unsigned int ifr6_ifindex;
+};
+
+#endif
+
+#endif /* HAVE_AFINET6 */
+
+#if HAVE_AFIPX
+#if (__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1)
+#include <netipx/ipx.h>
+#else
+#include "ipx.h"
+#endif
+#endif
+#include "net-support.h"
+#include "pathnames.h"
+#include "version.h"
+#include "../intl.h"
+#include "interface.h"
+#include "sockets.h"
+#include "util.h"
+
+static char *Release = RELEASE;
+
+int opt_a = 0; /* show all interfaces */
+int opt_v = 0; /* debugging output flag */
+
+int addr_family = 0; /* currently selected AF */
+
+/* for ipv4 add/del modes */
+static int get_nmbc_parent(char *parent, in_addr_t *nm, in_addr_t *bc);
+static int set_ifstate(char *parent, in_addr_t ip, in_addr_t nm, in_addr_t bc,
+ int flag);
+
+static int if_print(char *ifname)
+{
+ int res;
+
+ if (ife_short)
+ printf(_("Iface MTU RX-OK RX-ERR RX-DRP RX-OVR TX-OK TX-ERR TX-DRP TX-OVR Flg\n"));
+
+ if (!ifname) {
+ res = for_all_interfaces(do_if_print, &opt_a);
+ } else {
+ struct interface *ife;
+
+ ife = lookup_interface(ifname);
+ if (!ife) {
+ return -1;
+ }
+ res = do_if_fetch(ife);
+ if (res >= 0)
+ ife_print(ife);
+ }
+ return res;
+}
+
+/* Set a certain interface flag. */
+static int set_flag(char *ifname, short flag)
+{
+ struct ifreq ifr;
+
+ safe_strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
+ if (ioctl(skfd, SIOCGIFFLAGS, &ifr) < 0) {
+ fprintf(stderr, _("%s: ERROR while getting interface flags: %s\n"),
+ ifname, strerror(errno));
+ return (-1);
+ }
+ safe_strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
+ ifr.ifr_flags |= flag;
+ if (ioctl(skfd, SIOCSIFFLAGS, &ifr) < 0) {
+ perror("SIOCSIFFLAGS");
+ return -1;
+ }
+ return (0);
+}
+
+/* Clear a certain interface flag. */
+static int clr_flag(char *ifname, short flag)
+{
+ struct ifreq ifr;
+ int fd;
+
+ if (strchr(ifname, ':')) {
+ /* This is a v4 alias interface. Downing it via a socket for
+ another AF may have bad consequences. */
+ fd = get_socket_for_af(AF_INET);
+ if (fd < 0) {
+ fprintf(stderr, _("No support for INET on this system.\n"));
+ return -1;
+ }
+ } else
+ fd = skfd;
+
+ safe_strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
+ if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
+ fprintf(stderr, _("%s: ERROR while getting interface flags: %s\n"),
+ ifname, strerror(errno));
+ return -1;
+ }
+ safe_strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
+ ifr.ifr_flags &= ~flag;
+ if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
+ perror("SIOCSIFFLAGS");
+ return -1;
+ }
+ return (0);
+}
+
+/** test is a specified flag is set */
+static int test_flag(char *ifname, short flags)
+{
+ struct ifreq ifr;
+ int fd;
+
+ if (strchr(ifname, ':')) {
+ /* This is a v4 alias interface. Downing it via a socket for
+ another AF may have bad consequences. */
+ fd = get_socket_for_af(AF_INET);
+ if (fd < 0) {
+ fprintf(stderr, _("No support for INET on this system.\n"));
+ return -1;
+ }
+ } else
+ fd = skfd;
+
+ safe_strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
+ if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
+ fprintf(stderr, _("%s: ERROR while testing interface flags: %s\n"),
+ ifname, strerror(errno));
+ return -1;
+ }
+ return (ifr.ifr_flags & flags);
+}
+
+static void usage(int rc)
+{
+ FILE *fp = rc ? stderr : stdout;
+ fprintf(fp, _("Usage:\n ifconfig [-a] [-v] [-s] <interface> [[<AF>] <address>]\n"));
+#if HAVE_AFINET
+ fprintf(fp, _(" [add <address>[/<prefixlen>]]\n"));
+ fprintf(fp, _(" [del <address>[/<prefixlen>]]\n"));
+ fprintf(fp, _(" [[-]broadcast [<address>]] [[-]pointopoint [<address>]]\n"));
+ fprintf(fp, _(" [netmask <address>] [dstaddr <address>] [tunnel <address>]\n"));
+#endif
+#ifdef SIOCSKEEPALIVE
+ fprintf(fp, _(" [outfill <NN>] [keepalive <NN>]\n"));
+#endif
+ fprintf(fp, _(" [hw <HW> <address>] [mtu <NN>]\n"));
+ fprintf(fp, _(" [[-]trailers] [[-]arp] [[-]allmulti]\n"));
+ fprintf(fp, _(" [multicast] [[-]promisc]\n"));
+ fprintf(fp, _(" [mem_start <NN>] [io_addr <NN>] [irq <NN>] [media <type>]\n"));
+#ifdef HAVE_TXQUEUELEN
+ fprintf(fp, _(" [txqueuelen <NN>]\n"));
+#endif
+#ifdef SIOCSIFNAME
+ fprintf(fp, _(" [name <newname>]\n"));
+#endif
+#ifdef HAVE_DYNAMIC
+ fprintf(fp, _(" [[-]dynamic]\n"));
+#endif
+ fprintf(fp, _(" [up|down] ...\n\n"));
+
+ fprintf(fp, _(" <HW>=Hardware Type.\n"));
+ fprintf(fp, _(" List of possible hardware types:\n"));
+ print_hwlist(0); /* 1 = ARPable */
+ fprintf(fp, _(" <AF>=Address family. Default: %s\n"), DFLT_AF);
+ fprintf(fp, _(" List of possible address families:\n"));
+ print_aflist(0); /* 1 = routeable */
+ exit(rc);
+}
+
+static void version(void)
+{
+ printf("%s\n", Release);
+ exit(E_VERSION);
+}
+
+static int set_netmask(int skfd, struct ifreq *ifr, struct sockaddr *sa)
+{
+ int err = 0;
+
+ memcpy(&ifr->ifr_netmask, sa, sizeof(struct sockaddr));
+ if (ioctl(skfd, SIOCSIFNETMASK, ifr) < 0) {
+ fprintf(stderr, "SIOCSIFNETMASK: %s\n",
+ strerror(errno));
+ err = 1;
+ }
+ return err;
+}
+
+int main(int argc, char **argv)
+{
+ struct sockaddr_storage _sa, _samask;
+ struct sockaddr *sa = (struct sockaddr *)&_sa;
+ struct sockaddr *samask = (struct sockaddr *)&_samask;
+ struct sockaddr_in *sin = (struct sockaddr_in *)&_sa;
+ char host[128];
+ const struct aftype *ap;
+ const struct hwtype *hw;
+ struct ifreq ifr;
+ int goterr = 0, didnetmask = 0, neednetmask=0;
+ char **spp;
+ int fd;
+#if HAVE_AFINET6
+ extern struct aftype inet6_aftype;
+ struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&_sa;
+ struct in6_ifreq ifr6;
+ unsigned long prefix_len;
+ char *cp;
+#endif
+#if HAVE_AFINET
+ extern struct aftype inet_aftype;
+#endif
+
+#if I18N
+ setlocale(LC_ALL, "");
+ bindtextdomain("net-tools", "/usr/share/locale");
+ textdomain("net-tools");
+#endif
+
+ /* Find any options. */
+ argc--;
+ argv++;
+ while (argc && *argv[0] == '-') {
+ if (!strcmp(*argv, "-a"))
+ opt_a = 1;
+
+ else if (!strcmp(*argv, "-s"))
+ ife_short = 1;
+
+ else if (!strcmp(*argv, "-v"))
+ opt_v = 1;
+
+ else if (!strcmp(*argv, "-V") || !strcmp(*argv, "-version") ||
+ !strcmp(*argv, "--version"))
+ version();
+
+ else if (!strcmp(*argv, "-?") || !strcmp(*argv, "-h") ||
+ !strcmp(*argv, "-help") || !strcmp(*argv, "--help"))
+ usage(E_USAGE);
+
+ else {
+ fprintf(stderr, _("ifconfig: option `%s' not recognised.\n"),
+ argv[0]);
+ fprintf(stderr, _("ifconfig: `--help' gives usage information.\n"));
+ exit(1);
+ }
+
+ argv++;
+ argc--;
+ }
+
+ /* Create a channel to the NET kernel. */
+ if ((skfd = sockets_open(0)) < 0) {
+ perror("socket");
+ exit(1);
+ }
+
+ /* Do we have to show the current setup? */
+ if (argc == 0) {
+ int err = if_print((char *) NULL);
+ (void) close(skfd);
+ exit(err < 0);
+ }
+ /* No. Fetch the interface name. */
+ spp = argv;
+ safe_strncpy(ifr.ifr_name, *spp++, IFNAMSIZ);
+ if (*spp == (char *) NULL) {
+ int err = if_print(ifr.ifr_name);
+ (void) close(skfd);
+ exit(err < 0);
+ }
+
+ /* The next argument is either an address family name, or an option. */
+ if ((ap = get_aftype(*spp)) != NULL)
+ spp++; /* it was a AF name */
+ else
+ ap = get_aftype(DFLT_AF);
+
+ if (ap) {
+ addr_family = ap->af;
+ skfd = ap->fd;
+ }
+
+ /* Process the remaining arguments. */
+ while (*spp != (char *) NULL) {
+ if (!strcmp(*spp, "arp")) {
+ goterr |= clr_flag(ifr.ifr_name, IFF_NOARP);
+ spp++;
+ continue;
+ }
+ if (!strcmp(*spp, "-arp")) {
+ goterr |= set_flag(ifr.ifr_name, IFF_NOARP);
+ spp++;
+ continue;
+ }
+#ifdef IFF_PORTSEL
+ if (!strcmp(*spp, "media") || !strcmp(*spp, "port")) {
+ if (*++spp == NULL)
+ usage(E_OPTERR);
+ if (!strcasecmp(*spp, "auto")) {
+ goterr |= set_flag(ifr.ifr_name, IFF_AUTOMEDIA);
+ } else {
+ int i, j, newport;
+ char *endp;
+ newport = strtol(*spp, &endp, 10);
+ if (*endp != 0) {
+ newport = -1;
+ for (i = 0; if_port_text[i][0] && newport == -1; i++) {
+ for (j = 0; if_port_text[i][j]; j++) {
+ if (!strcasecmp(*spp, if_port_text[i][j])) {
+ newport = i;
+ break;
+ }
+ }
+ }
+ }
+ spp++;
+ if (newport == -1) {
+ fprintf(stderr, _("Unknown media type.\n"));
+ goterr = 1;
+ } else {
+ if (ioctl(skfd, SIOCGIFMAP, &ifr) < 0) {
+ perror("port: SIOCGIFMAP");
+ goterr = 1;
+ continue;
+ }
+ ifr.ifr_map.port = newport;
+ if (ioctl(skfd, SIOCSIFMAP, &ifr) < 0) {
+ perror("port: SIOCSIFMAP");
+ goterr = 1;
+ }
+ }
+ }
+ continue;
+ }
+#endif
+
+ if (!strcmp(*spp, "trailers")) {
+ goterr |= clr_flag(ifr.ifr_name, IFF_NOTRAILERS);
+ spp++;
+ continue;
+ }
+ if (!strcmp(*spp, "-trailers")) {
+ goterr |= set_flag(ifr.ifr_name, IFF_NOTRAILERS);
+ spp++;
+ continue;
+ }
+ if (!strcmp(*spp, "promisc")) {
+ goterr |= set_flag(ifr.ifr_name, IFF_PROMISC);
+ spp++;
+ continue;
+ }
+ if (!strcmp(*spp, "-promisc")) {
+ goterr |= clr_flag(ifr.ifr_name, IFF_PROMISC);
+ if (test_flag(ifr.ifr_name, IFF_PROMISC) > 0)
+ fprintf(stderr, _("Warning: Interface %s still in promisc mode... maybe other application is running?\n"), ifr.ifr_name);
+ spp++;
+ continue;
+ }
+ if (!strcmp(*spp, "multicast")) {
+ goterr |= set_flag(ifr.ifr_name, IFF_MULTICAST);
+ spp++;
+ continue;
+ }
+ if (!strcmp(*spp, "-multicast")) {
+ goterr |= clr_flag(ifr.ifr_name, IFF_MULTICAST);
+ if (test_flag(ifr.ifr_name, IFF_MULTICAST) > 0)
+ fprintf(stderr, _("Warning: Interface %s still in MULTICAST mode.\n"), ifr.ifr_name);
+ spp++;
+ continue;
+ }
+ if (!strcmp(*spp, "allmulti")) {
+ goterr |= set_flag(ifr.ifr_name, IFF_ALLMULTI);
+ spp++;
+ continue;
+ }
+ if (!strcmp(*spp, "-allmulti")) {
+ goterr |= clr_flag(ifr.ifr_name, IFF_ALLMULTI);
+ if (test_flag(ifr.ifr_name, IFF_ALLMULTI) > 0)
+ fprintf(stderr, _("Warning: Interface %s still in ALLMULTI mode.\n"), ifr.ifr_name);
+ spp++;
+ continue;
+ }
+ if (!strcmp(*spp, "up")) {
+ goterr |= set_flag(ifr.ifr_name, (IFF_UP | IFF_RUNNING));
+ spp++;
+ continue;
+ }
+ if (!strcmp(*spp, "down")) {
+ goterr |= clr_flag(ifr.ifr_name, IFF_UP);
+ spp++;
+ continue;
+ }
+#ifdef HAVE_DYNAMIC
+ if (!strcmp(*spp, "dynamic")) {
+ goterr |= set_flag(ifr.ifr_name, IFF_DYNAMIC);
+ spp++;
+ continue;
+ }
+ if (!strcmp(*spp, "-dynamic")) {
+ goterr |= clr_flag(ifr.ifr_name, IFF_DYNAMIC);
+ spp++;
+ if (test_flag(ifr.ifr_name, IFF_DYNAMIC) > 0)
+ fprintf(stderr, _("Warning: Interface %s still in DYNAMIC mode.\n"), ifr.ifr_name);
+ continue;
+ }
+#endif
+
+ if (!strcmp(*spp, "mtu")) {
+ if (*++spp == NULL)
+ usage(E_OPTERR);
+ ifr.ifr_mtu = atoi(*spp);
+ if (ioctl(skfd, SIOCSIFMTU, &ifr) < 0) {
+ fprintf(stderr, "SIOCSIFMTU: %s\n", strerror(errno));
+ goterr = 1;
+ }
+ spp++;
+ continue;
+ }
+#ifdef SIOCSKEEPALIVE
+ if (!strcmp(*spp, "keepalive")) {
+ if (*++spp == NULL)
+ usage(E_OPTERR);
+ ifr.ifr_data = (caddr_t) (uintptr_t) atoi(*spp);
+ if (ioctl(skfd, SIOCSKEEPALIVE, &ifr) < 0) {
+ fprintf(stderr, "SIOCSKEEPALIVE: %s\n", strerror(errno));
+ goterr = 1;
+ }
+ spp++;
+ continue;
+ }
+#endif
+
+#ifdef SIOCSOUTFILL
+ if (!strcmp(*spp, "outfill")) {
+ if (*++spp == NULL)
+ usage(E_OPTERR);
+ ifr.ifr_data = (caddr_t) (uintptr_t) atoi(*spp);
+ if (ioctl(skfd, SIOCSOUTFILL, &ifr) < 0) {
+ fprintf(stderr, "SIOCSOUTFILL: %s\n", strerror(errno));
+ goterr = 1;
+ }
+ spp++;
+ continue;
+ }
+#endif
+
+ if (!strcmp(*spp, "-broadcast")) {
+ goterr |= clr_flag(ifr.ifr_name, IFF_BROADCAST);
+ if (test_flag(ifr.ifr_name, IFF_BROADCAST) > 0)
+ fprintf(stderr, _("Warning: Interface %s still in BROADCAST mode.\n"), ifr.ifr_name);
+ spp++;
+ continue;
+ }
+ if (!strcmp(*spp, "broadcast")) {
+ if (*++spp != NULL) {
+ safe_strncpy(host, *spp, (sizeof host));
+ if (ap->input(0, host, &_sa) < 0) {
+ if (ap->herror)
+ ap->herror(host);
+ else
+ fprintf(stderr, _("ifconfig: Error resolving '%s' for broadcast\n"), host);
+ goterr = 1;
+ spp++;
+ continue;
+ }
+ memcpy(&ifr.ifr_broadaddr, sa, sizeof(struct sockaddr));
+ if (ioctl(ap->fd, SIOCSIFBRDADDR, &ifr) < 0) {
+ fprintf(stderr, "SIOCSIFBRDADDR: %s\n",
+ strerror(errno));
+ goterr = 1;
+ }
+ spp++;
+ }
+ goterr |= set_flag(ifr.ifr_name, IFF_BROADCAST);
+ continue;
+ }
+ if (!strcmp(*spp, "dstaddr")) {
+ if (*++spp == NULL)
+ usage(E_OPTERR);
+ safe_strncpy(host, *spp, (sizeof host));
+ if (ap->input(0, host, &_sa) < 0) {
+ if (ap->herror)
+ ap->herror(host);
+ else
+ fprintf(stderr, _("ifconfig: Error resolving '%s' for dstaddr\n"), host);
+ goterr = 1;
+ spp++;
+ continue;
+ }
+ memcpy(&ifr.ifr_dstaddr, sa, sizeof(struct sockaddr));
+ if (ioctl(ap->fd, SIOCSIFDSTADDR, &ifr) < 0) {
+ fprintf(stderr, "SIOCSIFDSTADDR: %s\n",
+ strerror(errno));
+ goterr = 1;
+ }
+ spp++;
+ continue;
+ }
+ if (!strcmp(*spp, "netmask")) {
+ if (*++spp == NULL || didnetmask)
+ usage(E_OPTERR);
+ safe_strncpy(host, *spp, (sizeof host));
+ if (ap->input(0, host, &_sa) < 0) {
+ if (ap->herror)
+ ap->herror(host);
+ else
+ fprintf(stderr, _("ifconfig: Error resolving '%s' for netmask\n"), host);
+ goterr = 1;
+ spp++;
+ continue;
+ }
+ didnetmask++;
+ goterr |= set_netmask(ap->fd, &ifr, sa);
+ spp++;
+ continue;
+ }
+#ifdef HAVE_TXQUEUELEN
+ if (!strcmp(*spp, "txqueuelen")) {
+ if (*++spp == NULL)
+ usage(E_OPTERR);
+ ifr.ifr_qlen = strtoul(*spp, NULL, 0);
+ if (ioctl(skfd, SIOCSIFTXQLEN, &ifr) < 0) {
+ fprintf(stderr, "SIOCSIFTXQLEN: %s\n", strerror(errno));
+ goterr = 1;
+ }
+ spp++;
+ continue;
+ }
+#endif
+
+#ifdef SIOCSIFNAME
+ if (!strcmp(*spp, "name")) {
+ if (*++spp == NULL)
+ usage(E_OPTERR);
+ safe_strncpy(ifr.ifr_newname, *spp, IFNAMSIZ);
+ if (ioctl(skfd, SIOCSIFNAME, &ifr) < 0) {
+ fprintf(stderr, "SIOCSIFNAME: %s\n", strerror(errno));
+ goterr = 1;
+ }
+ spp++;
+ continue;
+ }
+#endif
+
+ if (!strcmp(*spp, "mem_start")) {
+ if (*++spp == NULL)
+ usage(E_OPTERR);
+ if (ioctl(skfd, SIOCGIFMAP, &ifr) < 0) {
+ fprintf(stderr, "mem_start: SIOCGIFMAP: %s\n", strerror(errno));
+ spp++;
+ goterr = 1;
+ continue;
+ }
+ ifr.ifr_map.mem_start = strtoul(*spp, NULL, 0);
+ if (ioctl(skfd, SIOCSIFMAP, &ifr) < 0) {
+ fprintf(stderr, "mem_start: SIOCSIFMAP: %s\n", strerror(errno));
+ goterr = 1;
+ }
+ spp++;
+ continue;
+ }
+ if (!strcmp(*spp, "io_addr")) {
+ if (*++spp == NULL)
+ usage(E_OPTERR);
+ if (ioctl(skfd, SIOCGIFMAP, &ifr) < 0) {
+ fprintf(stderr, "io_addr: SIOCGIFMAP: %s\n", strerror(errno));
+ spp++;
+ goterr = 1;
+ continue;
+ }
+ ifr.ifr_map.base_addr = strtol(*spp, NULL, 0);
+ if (ioctl(skfd, SIOCSIFMAP, &ifr) < 0) {
+ fprintf(stderr, "io_addr: SIOCSIFMAP: %s\n", strerror(errno));
+ goterr = 1;
+ }
+ spp++;
+ continue;
+ }
+ if (!strcmp(*spp, "irq")) {
+ if (*++spp == NULL)
+ usage(E_OPTERR);
+ if (ioctl(skfd, SIOCGIFMAP, &ifr) < 0) {
+ fprintf(stderr, "irq: SIOCGIFMAP: %s\n", strerror(errno));
+ goterr = 1;
+ spp++;
+ continue;
+ }
+ ifr.ifr_map.irq = atoi(*spp);
+ if (ioctl(skfd, SIOCSIFMAP, &ifr) < 0) {
+ fprintf(stderr, "irq: SIOCSIFMAP: %s\n", strerror(errno));
+ goterr = 1;
+ }
+ spp++;
+ continue;
+ }
+ if (!strcmp(*spp, "-pointopoint") || !strcmp(*spp, "-pointtopoint")) {
+ goterr |= clr_flag(ifr.ifr_name, IFF_POINTOPOINT);
+ spp++;
+ if (test_flag(ifr.ifr_name, IFF_POINTOPOINT) > 0)
+ fprintf(stderr, _("Warning: Interface %s still in POINTOPOINT mode.\n"), ifr.ifr_name);
+ continue;
+ }
+ if (!strcmp(*spp, "pointopoint") || !strcmp(*spp, "pointtopoint")) {
+ if (*(spp + 1) != NULL) {
+ spp++;
+ safe_strncpy(host, *spp, (sizeof host));
+ if (ap->input(0, host, &_sa)) {
+ if (ap->herror)
+ ap->herror(host);
+ else
+ fprintf(stderr, _("ifconfig: Error resolving '%s' for pointopoint\n"), host);
+ goterr = 1;
+ spp++;
+ continue;
+ }
+ memcpy(&ifr.ifr_dstaddr, sa, sizeof(struct sockaddr));
+ if (ioctl(ap->fd, SIOCSIFDSTADDR, &ifr) < 0) {
+ fprintf(stderr, "SIOCSIFDSTADDR: %s\n",
+ strerror(errno));
+ goterr = 1;
+ }
+ }
+ goterr |= set_flag(ifr.ifr_name, IFF_POINTOPOINT);
+ spp++;
+ continue;
+ };
+
+ if (!strcmp(*spp, "hw")) {
+ if (*++spp == NULL)
+ usage(E_OPTERR);
+ if ((hw = get_hwtype(*spp)) == NULL)
+ usage(E_OPTERR);
+ if (hw->input == NULL) {
+ fprintf(stderr, _("hw address type `%s' has no handler to set address. failed.\n"), *spp);
+ spp+=2;
+ goterr = 1;
+ continue;
+ }
+ if (*++spp == NULL)
+ usage(E_OPTERR);
+ safe_strncpy(host, *spp, (sizeof host));
+ if (hw->input(host, &_sa) < 0) {
+ fprintf(stderr, _("%s: invalid %s address.\n"), host, hw->name);
+ goterr = 1;
+ spp++;
+ continue;
+ }
+ memcpy(&ifr.ifr_hwaddr, sa, sizeof(struct sockaddr));
+ if (ioctl(skfd, SIOCSIFHWADDR, &ifr) < 0) {
+ if (errno == EBUSY)
+ fprintf(stderr, "SIOCSIFHWADDR: %s - you may need to down the interface\n",
+ strerror(errno));
+ else
+ fprintf(stderr, "SIOCSIFHWADDR: %s\n",
+ strerror(errno));
+ goterr = 1;
+ }
+ spp++;
+ continue;
+ }
+#if HAVE_AFINET || HAVE_AFINET6
+ if (!strcmp(*spp, "add")) {
+ if (*++spp == NULL)
+ usage(E_OPTERR);
+#if HAVE_AFINET6
+ if (strchr(*spp, ':')) {
+ /* INET6 */
+ if ((cp = strchr(*spp, '/'))) {
+ prefix_len = atol(cp + 1);
+ if ((prefix_len < 0) || (prefix_len > 128))
+ usage(E_OPTERR);
+ *cp = 0;
+ } else {
+ prefix_len = 128;
+ }
+ safe_strncpy(host, *spp, (sizeof host));
+ if (inet6_aftype.input(1, host, &_sa) < 0) {
+ if (inet6_aftype.herror)
+ inet6_aftype.herror(host);
+ else
+ fprintf(stderr, _("ifconfig: Error resolving '%s' for add\n"), host);
+ goterr = 1;
+ spp++;
+ continue;
+ }
+ memcpy(&ifr6.ifr6_addr, &sin6->sin6_addr, sizeof(struct in6_addr));
+
+ fd = get_socket_for_af(AF_INET6);
+ if (fd < 0) {
+ fprintf(stderr,
+ _("No support for INET6 on this system.\n"));
+ goterr = 1;
+ spp++;
+ continue;
+ }
+ if (ioctl(fd, SIOGIFINDEX, &ifr) < 0) {
+ perror("SIOGIFINDEX");
+ goterr = 1;
+ spp++;
+ continue;
+ }
+ ifr6.ifr6_ifindex = ifr.ifr_ifindex;
+ ifr6.ifr6_prefixlen = prefix_len;
+ if (ioctl(fd, SIOCSIFADDR, &ifr6) < 0) {
+ perror("SIOCSIFADDR");
+ goterr = 1;
+ }
+ spp++;
+ continue;
+ }
+#endif
+#if HAVE_AFINET
+ { /* ipv4 address a.b.c.d */
+ in_addr_t ip, nm = (in_addr_t)0, bc = (in_addr_t)0;
+ safe_strncpy(host, *spp, (sizeof host));
+ if (inet_aftype.input(0, host, &_sa) < 0) {
+ ap->herror(host);
+ goterr = 1;
+ spp++;
+ continue;
+ }
+ fd = get_socket_for_af(AF_INET);
+ if (fd < 0) {
+ fprintf(stderr,
+ _("No support for INET on this system.\n"));
+ goterr = 1;
+ spp++;
+ continue;
+ }
+
+ memcpy(&ip, &sin->sin_addr.s_addr, sizeof(ip));
+
+ if (get_nmbc_parent(ifr.ifr_name, &nm, &bc) < 0) {
+ fprintf(stderr, _("Interface %s not initialized\n"),
+ ifr.ifr_name);
+ goterr = 1;
+ spp++;
+ continue;
+ }
+ set_ifstate(ifr.ifr_name, ip, nm, bc, 1);
+
+ }
+ spp++;
+ continue;
+#else
+ fprintf(stderr, _("Bad address.\n"));
+#endif
+ }
+#endif
+
+#if HAVE_AFINET || HAVE_AFINET6
+ if (!strcmp(*spp, "del")) {
+ if (*++spp == NULL)
+ usage(E_OPTERR);
+
+#ifdef SIOCDIFADDR
+#if HAVE_AFINET6
+ if (strchr(*spp, ':')) { /* INET6 */
+ if ((cp = strchr(*spp, '/'))) {
+ prefix_len = atol(cp + 1);
+ if ((prefix_len < 0) || (prefix_len > 128))
+ usage(E_OPTERR);
+ *cp = 0;
+ } else {
+ prefix_len = 128;
+ }
+ safe_strncpy(host, *spp, (sizeof host));
+ if (inet6_aftype.input(1, host, &_sa) < 0) {
+ inet6_aftype.herror(host);
+ goterr = 1;
+ spp++;
+ continue;
+ }
+ memcpy(&ifr6.ifr6_addr, &sin6->sin6_addr,
+ sizeof(struct in6_addr));
+
+ fd = get_socket_for_af(AF_INET6);
+ if (fd < 0) {
+ fprintf(stderr,
+ _("No support for INET6 on this system.\n"));
+ goterr = 1;
+ spp++;
+ continue;
+ }
+ if (ioctl(fd, SIOGIFINDEX, &ifr) < 0) {
+ perror("SIOGIFINDEX");
+ goterr = 1;
+ spp++;
+ continue;
+ }
+ ifr6.ifr6_ifindex = ifr.ifr_ifindex;
+ ifr6.ifr6_prefixlen = prefix_len;
+ if (opt_v)
+ fprintf(stderr, "now deleting: ioctl(SIOCDIFADDR,{ifindex=%d,prefixlen=%ld})\n",ifr.ifr_ifindex,prefix_len);
+ if (ioctl(fd, SIOCDIFADDR, &ifr6) < 0) {
+ fprintf(stderr, "SIOCDIFADDR: %s\n",
+ strerror(errno));
+ goterr = 1;
+ }
+ spp++;
+ continue;
+ }
+#endif
+#if HAVE_AFINET
+ {
+ /* ipv4 address a.b.c.d */
+ in_addr_t ip, nm = (in_addr_t)0, bc = (in_addr_t)0;
+ safe_strncpy(host, *spp, (sizeof host));
+ if (inet_aftype.input(0, host, &_sa) < 0) {
+ ap->herror(host);
+ goterr = 1;
+ spp++;
+ continue;
+ }
+ fd = get_socket_for_af(AF_INET);
+ if (fd < 0) {
+ fprintf(stderr, _("No support for INET on this system.\n"));
+ goterr = 1;
+ spp++;
+ continue;
+ }
+
+ /* Clear "ip" in case sizeof(unsigned long) > sizeof(sin.sin_addr.s_addr) */
+ ip = 0;
+ memcpy(&ip, &sin->sin_addr.s_addr, sizeof(ip));
+
+ if (get_nmbc_parent(ifr.ifr_name, &nm, &bc) < 0) {
+ fprintf(stderr, _("Interface %s not initialized\n"),
+ ifr.ifr_name);
+ goterr = 1;
+ spp++;
+ continue;
+ }
+ set_ifstate(ifr.ifr_name, ip, nm, bc, 0);
+ }
+ spp++;
+ continue;
+#else
+ fprintf(stderr, _("Bad address.\n"));
+#endif
+#else
+ fprintf(stderr, _("Address deletion not supported on this system.\n"));
+#endif
+ }
+#endif
+#if HAVE_AFINET6
+ if (!strcmp(*spp, "tunnel")) {
+ if (*++spp == NULL)
+ usage(E_OPTERR);
+ if ((cp = strchr(*spp, '/'))) {
+ prefix_len = atol(cp + 1);
+ if ((prefix_len < 0) || (prefix_len > 128))
+ usage(E_OPTERR);
+ *cp = 0;
+ } else {
+ prefix_len = 128;
+ }
+ safe_strncpy(host, *spp, (sizeof host));
+ if (inet6_aftype.input(1, host, &_sa) < 0) {
+ inet6_aftype.herror(host);
+ goterr = 1;
+ spp++;
+ continue;
+ }
+ memcpy(&ifr6.ifr6_addr, &sin6->sin6_addr, sizeof(struct in6_addr));
+
+ fd = get_socket_for_af(AF_INET6);
+ if (fd < 0) {
+ fprintf(stderr, _("No support for INET6 on this system.\n"));
+ goterr = 1;
+ spp++;
+ continue;
+ }
+ if (ioctl(fd, SIOGIFINDEX, &ifr) < 0) {
+ perror("SIOGIFINDEX");
+ goterr = 1;
+ spp++;
+ continue;
+ }
+ ifr6.ifr6_ifindex = ifr.ifr_ifindex;
+ ifr6.ifr6_prefixlen = prefix_len;
+
+ if (ioctl(fd, SIOCSIFDSTADDR, &ifr6) < 0) {
+ fprintf(stderr, "SIOCSIFDSTADDR: %s\n",
+ strerror(errno));
+ goterr = 1;
+ }
+ spp++;
+ continue;
+ }
+#endif
+
+ /* If the next argument is a valid hostname, assume OK. */
+ safe_strncpy(host, *spp, (sizeof host));
+
+ /* FIXME: sa is too small for INET6 addresses, inet6 should use that too,
+ broadcast is unexpected */
+ if (ap->getmask) {
+ switch (ap->getmask(host, &_samask, NULL)) {
+ case -1:
+ usage(E_OPTERR);
+ break;
+ case 1:
+ if (didnetmask)
+ usage(E_OPTERR);
+
+ // remeber to set the netmask from samask later
+ neednetmask = 1;
+ break;
+ }
+ }
+ if (ap->input == NULL) {
+ fprintf(stderr, _("ifconfig: Cannot set address for this protocol family.\n"));
+ exit(1);
+ }
+ if (ap->input(0, host, &_sa) < 0) {
+ if (ap->herror) {
+ ap->herror(host);
+ } else {
+ fprintf(stderr,_("ifconfig: error resolving '%s' to set address for af=%s\n"), host, ap->name);
+ fprintf(stderr, _("ifconfig: `--help' gives usage information.\n"));
+ exit(1);
+ }
+ }
+ memcpy(&ifr.ifr_addr, sa, sizeof(struct sockaddr));
+ {
+ int r = 0; /* to shut gcc up */
+ switch (ap->af) {
+#if HAVE_AFINET
+ case AF_INET:
+ fd = get_socket_for_af(AF_INET);
+ if (fd < 0) {
+ fprintf(stderr, _("No support for INET on this system.\n"));
+ exit(1);
+ }
+ r = ioctl(fd, SIOCSIFADDR, &ifr);
+ break;
+#endif
+#if HAVE_AFECONET
+ case AF_ECONET:
+ fd = get_socket_for_af(AF_ECONET);
+ if (fd < 0) {
+ fprintf(stderr, _("No support for ECONET on this system.\n"));
+ exit(1);
+ }
+ r = ioctl(fd, SIOCSIFADDR, &ifr);
+ break;
+#endif
+ default:
+ fprintf(stderr,
+ _("Don't know how to set addresses for family %d.\n"), ap->af);
+ exit(1);
+ }
+ if (r < 0) {
+ perror("SIOCSIFADDR");
+ goterr = 1;
+ }
+ }
+
+ /*
+ * Don't do the set_flag() if the address is an alias with a - at the
+ * end, since it's deleted already! - Roman
+ * Same goes if they used address 0.0.0.0 as the kernel uses this to
+ * destroy aliases.
+ *
+ * Should really use regex.h here, not sure though how well it'll go
+ * with the cross-platform support etc.
+ */
+ {
+ char *ptr;
+ short int found_colon = 0;
+ short int bring_up = 1;
+ for (ptr = ifr.ifr_name; *ptr; ptr++ )
+ if (*ptr == ':') found_colon++;
+
+ if (found_colon) {
+ if (ptr[-1] == '-')
+ bring_up = 0;
+ else if (ap->af == AF_INET && sin->sin_addr.s_addr == 0)
+ bring_up = 0;
+ }
+
+ if (bring_up)
+ goterr |= set_flag(ifr.ifr_name, (IFF_UP | IFF_RUNNING));
+ }
+
+ spp++;
+ }
+
+ if (neednetmask) {
+ goterr |= set_netmask(skfd, &ifr, samask);
+ didnetmask++;
+ }
+
+ if (opt_v && goterr)
+ fprintf(stderr, _("WARNING: at least one error occured. (%d)\n"), goterr);
+
+ return (goterr);
+}
+
+struct ifcmd {
+ int flag;
+ unsigned long addr;
+ char *base;
+ int baselen;
+};
+
+static unsigned char searcher[256];
+
+static int set_ip_using(const char *name, int c, unsigned long ip)
+{
+ struct ifreq ifr;
+ struct sockaddr_in sin;
+
+ safe_strncpy(ifr.ifr_name, name, IFNAMSIZ);
+ memset(&sin, 0, sizeof(struct sockaddr));
+ sin.sin_family = AF_INET;
+ sin.sin_addr.s_addr = ip;
+ memcpy(&ifr.ifr_addr, &sin, sizeof(struct sockaddr));
+ if (ioctl(skfd, c, &ifr) < 0)
+ return -1;
+ return 0;
+}
+
+static int do_ifcmd(struct interface *x, struct ifcmd *ptr)
+{
+ char *z, *e;
+ struct sockaddr_in *sin;
+ int i;
+
+ if (do_if_fetch(x) < 0)
+ return 0;
+ if (strncmp(x->name, ptr->base, ptr->baselen) != 0)
+ return 0; /* skip */
+ z = strchr(x->name, ':');
+ if (!z || !*z)
+ return 0;
+ z++;
+ for (e = z; *e; e++)
+ if (*e == '-') /* deleted */
+ return 0;
+ i = atoi(z);
+ if (i < 0 || i > 255)
+ abort();
+ searcher[i] = 1;
+
+ /* copy */
+ sin = (struct sockaddr_in *)&x->dstaddr_sas;
+ if (sin->sin_addr.s_addr != ptr->addr) {
+ return 0;
+ }
+
+ if (ptr->flag) {
+ /* turn UP */
+ if (set_flag(x->name, IFF_UP | IFF_RUNNING) == -1)
+ return -1;
+ } else {
+ /* turn DOWN */
+ if (clr_flag(x->name, IFF_UP) == -1)
+ return -1;
+ }
+
+ return 1; /* all done! */
+}
+
+
+static int get_nmbc_parent(char *parent,
+ in_addr_t *nm, in_addr_t *bc)
+{
+ struct interface *i;
+ struct sockaddr_in *sin;
+
+ i = lookup_interface(parent);
+ if (!i)
+ return -1;
+ if (do_if_fetch(i) < 0)
+ return 0;
+ sin = (struct sockaddr_in *)&i->netmask_sas;
+ memcpy(nm, &sin->sin_addr.s_addr, sizeof(*nm));
+ sin = (struct sockaddr_in *)&i->broadaddr_sas;
+ memcpy(bc, &sin->sin_addr.s_addr, sizeof(*bc));
+ return 0;
+}
+
+static int set_ifstate(char *parent, in_addr_t ip, in_addr_t nm, in_addr_t bc,
+ int flag)
+{
+ char buf[IFNAMSIZ];
+ struct ifcmd pt;
+ int i;
+
+ pt.base = parent;
+ pt.baselen = strlen(parent);
+ pt.addr = ip;
+ pt.flag = flag;
+ memset(searcher, 0, sizeof(searcher));
+ i = for_all_interfaces((int (*)(struct interface *,void *))do_ifcmd,
+ &pt);
+ if (i == -1)
+ return -1;
+ if (i == 1)
+ return 0;
+
+ /* add a new interface */
+ for (i = 0; i < 256; i++)
+ if (searcher[i] == 0)
+ break;
+
+ if (i == 256)
+ return -1; /* FAILURE!!! out of ip addresses */
+
+ if (snprintf(buf, IFNAMSIZ, "%s:%d", parent, i) > IFNAMSIZ)
+ return -1;
+ if (set_ip_using(buf, SIOCSIFADDR, ip) == -1)
+ return -1;
+ if (set_ip_using(buf, SIOCSIFNETMASK, nm) == -1)
+ return -1;
+ if (set_ip_using(buf, SIOCSIFBRDADDR, bc) == -1)
+ return -1;
+ if (set_flag(buf, IFF_BROADCAST) == -1)
+ return -1;
+ return 0;
+}
Radix cross Linux
The main Radix cross Linux repository contains the build scripts of packages, which have the most complete and common functionality for desktop machines
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2 Branches
1 Tag