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- /*
- * Copyright (c) 1983, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
- #ifndef lint
- static const char copyright[] =
- "@(#) Copyright (c) 1983, 1993\n\
- The Regents of the University of California. All rights reserved.\n";
- #endif /* not lint */
-
- #ifndef lint
- /*
- static char sccsid[] = "@(#)ifconfig.c 8.2 (Berkeley) 2/16/94";
- */
- static const char rcsid[] =
- "$Id: ifconfig.c,v 1.19.2.1 1997/06/30 11:02:00 peter Exp $";
- #endif /* not lint */
-
- #include <sys/param.h>
- #include <sys/ioctl.h>
- #include <sys/socket.h>
- #include <sys/sysctl.h>
- #include <sys/time.h>
-
- #include <net/if.h>
- #include <net/if_dl.h>
- #include <net/if_types.h>
- #include <net/route.h>
-
- /* IP */
- #include <netinet/in.h>
- #include <netinet/in_var.h>
- #include <arpa/inet.h>
- #include <netdb.h>
-
- /* IPX */
- #define IPXIP
- #define IPTUNNEL
- #include <netipx/ipx.h>
- #include <netipx/ipx_if.h>
-
- /* Appletalk */
- #include <netatalk/at.h>
-
- /* XNS */
- #ifdef NS
- #define NSIP
- #include <netns/ns.h>
- #include <netns/ns_if.h>
- #endif
-
- /* OSI */
- #ifdef ISO
- #define EON
- #include <netiso/iso.h>
- #include <netiso/iso_var.h>
- #endif
-
- #include <ctype.h>
- #include <err.h>
- #include <errno.h>
- #include <fcntl.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include <unistd.h>
-
- #include "ifconfig.h"
-
- struct ifreq ifr, ridreq;
- struct ifaliasreq addreq;
- #ifdef ISO
- struct iso_ifreq iso_ridreq;
- struct iso_aliasreq iso_addreq;
- #endif
- struct sockaddr_in netmask;
- struct netrange at_nr; /* AppleTalk net range */
-
- char name[32];
- int flags;
- int metric;
- int mtu;
- #ifdef ISO
- int nsellength = 1;
- #endif
- int setaddr;
- int setipdst;
- int doalias;
- int clearaddr;
- int newaddr = 1;
- int allmedia;
-
- struct afswtch;
-
- void Perror __P((const char *cmd));
- void checkatrange __P((struct sockaddr_at *));
- int ifconfig __P((int argc, char *const *argv, const struct afswtch *afp));
- void notealias __P((const char *, int, int, const struct afswtch *afp));
- void printb __P((const char *s, unsigned value, const char *bits));
- void rt_xaddrs __P((caddr_t, caddr_t, struct rt_addrinfo *));
- void status __P((const struct afswtch *afp, int addrcount,
- struct sockaddr_dl *sdl, struct if_msghdr *ifm,
- struct ifa_msghdr *ifam));
- void usage __P((void));
-
- typedef void c_func __P((const char *cmd, int arg, int s, const struct afswtch *afp));
- c_func setatphase, setatrange;
- c_func setifaddr, setifbroadaddr, setifdstaddr, setifnetmask;
- c_func setifipdst;
- c_func setifflags, setifmetric, setifmtu;
-
- #ifdef ISO
- c_func setsnpaoffset, setnsellength;
- #endif
-
- #define NEXTARG 0xffffff
-
- const
- struct cmd {
- const char *c_name;
- int c_parameter; /* NEXTARG means next argv */
- void (*c_func) __P((const char *, int, int, const struct afswtch *afp));
- } cmds[] = {
- { "up", IFF_UP, setifflags } ,
- { "down", -IFF_UP, setifflags },
- { "arp", -IFF_NOARP, setifflags },
- { "-arp", IFF_NOARP, setifflags },
- { "debug", IFF_DEBUG, setifflags },
- { "-debug", -IFF_DEBUG, setifflags },
- { "alias", IFF_UP, notealias },
- { "-alias", -IFF_UP, notealias },
- { "delete", -IFF_UP, notealias },
- #ifdef notdef
- #define EN_SWABIPS 0x1000
- { "swabips", EN_SWABIPS, setifflags },
- { "-swabips", -EN_SWABIPS, setifflags },
- #endif
- { "netmask", NEXTARG, setifnetmask },
- { "range", NEXTARG, setatrange },
- { "phase", NEXTARG, setatphase },
- { "metric", NEXTARG, setifmetric },
- { "broadcast", NEXTARG, setifbroadaddr },
- { "ipdst", NEXTARG, setifipdst },
- #ifdef ISO
- { "snpaoffset", NEXTARG, setsnpaoffset },
- { "nsellength", NEXTARG, setnsellength },
- #endif
- { "link0", IFF_LINK0, setifflags },
- { "-link0", -IFF_LINK0, setifflags },
- { "link1", IFF_LINK1, setifflags },
- { "-link1", -IFF_LINK1, setifflags },
- { "link2", IFF_LINK2, setifflags },
- { "-link2", -IFF_LINK2, setifflags },
- #ifdef USE_IF_MEDIA
- { "media", NEXTARG, setmedia },
- { "mediaopt", NEXTARG, setmediaopt },
- { "-mediaopt", NEXTARG, unsetmediaopt },
- #endif
- { "normal", -IFF_LINK0, setifflags },
- { "compress", IFF_LINK0, setifflags },
- { "noicmp", IFF_LINK1, setifflags },
- { "mtu", NEXTARG, setifmtu },
- { 0, 0, setifaddr },
- { 0, 0, setifdstaddr },
- };
-
- /*
- * XNS support liberally adapted from code written at the University of
- * Maryland principally by James O'Toole and Chris Torek.
- */
- typedef void af_status __P((int, struct rt_addrinfo *));
- typedef void af_getaddr __P((const char *, int));
-
- af_status in_status, ipx_status, at_status, ether_status;
- af_getaddr in_getaddr, ipx_getaddr, at_getaddr;
-
- #ifdef NS
- af_status xns_status;
- af_getaddr xns_getaddr;
- #endif
- #ifdef ISO
- af_status iso_status;
- af_getaddr iso_getaddr;
- #endif
-
- /* Known address families */
- const
- struct afswtch {
- const char *af_name;
- short af_af;
- af_status *af_status;
- af_getaddr *af_getaddr;
- int af_difaddr;
- int af_aifaddr;
- caddr_t af_ridreq;
- caddr_t af_addreq;
- } afs[] = {
- #define C(x) ((caddr_t) &x)
- { "inet", AF_INET, in_status, in_getaddr,
- SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(addreq) },
- { "ipx", AF_IPX, ipx_status, ipx_getaddr,
- SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(addreq) },
- { "atalk", AF_APPLETALK, at_status, at_getaddr,
- SIOCDIFADDR, SIOCAIFADDR, C(addreq), C(addreq) },
- #ifdef NS
- { "ns", AF_NS, xns_status, xns_getaddr,
- SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(addreq) },
- #endif
- #ifdef ISO
- { "iso", AF_ISO, iso_status, iso_getaddr,
- SIOCDIFADDR_ISO, SIOCAIFADDR_ISO, C(iso_ridreq), C(iso_addreq) },
- #endif
- { "ether", AF_INET, ether_status, NULL }, /* XXX not real!! */
- #if 0 /* XXX conflicts with the media command */
- #ifdef USE_IF_MEDIA
- { "media", AF_INET, media_status, NULL }, /* XXX not real!! */
- #endif
- #endif
- { 0, 0, 0, 0 }
- };
-
- /*
- * Expand the compacted form of addresses as returned via the
- * configuration read via sysctl().
- */
-
- #define ROUNDUP(a) \
- ((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long))
- #define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len))
-
- void
- rt_xaddrs(cp, cplim, rtinfo)
- caddr_t cp, cplim;
- struct rt_addrinfo *rtinfo;
- {
- struct sockaddr *sa;
- int i;
-
- memset(rtinfo->rti_info, 0, sizeof(rtinfo->rti_info));
- for (i = 0; (i < RTAX_MAX) && (cp < cplim); i++) {
- if ((rtinfo->rti_addrs & (1 << i)) == 0)
- continue;
- rtinfo->rti_info[i] = sa = (struct sockaddr *)cp;
- ADVANCE(cp, sa);
- }
- }
-
-
- void
- usage()
- {
- fputs("usage: ifconfig -a [ -m ] [ -d ] [ -u ] [ af ]\n", stderr);
- fputs(" ifconfig -l [ -d ] [ -u ]\n", stderr);
- fputs(" ifconfig [ -m ] interface\n", stderr);
- fputs(" [ af [ address [ dest_addr ] ] [ netmask mask ] [ broadcast addr ]\n", stderr);
- fputs(" [ alias ] [ delete ] ]\n", stderr);
- fputs(" [ up ] [ down ]\n", stderr);
- fputs(" [ metric n ]\n", stderr);
- fputs(" [ mtu n ]\n", stderr);
- fputs(" [ arp | -arp ]\n", stderr);
- fputs(" [ link0 | -link0 ] [ link1 | -link1 ] [ link2 | -link2 ]\n", stderr);
- #ifdef USE_IF_MEDIA
- fputs(" [ media mtype ]\n", stderr);
- fputs(" [ mediaopt mopts ]\n", stderr);
- fputs(" [ -mediaopt mopts ]\n", stderr);
- #endif
- exit(1);
- }
-
- int
- main(argc, argv)
- int argc;
- char *const *argv;
- {
- int c;
- int all, namesonly, downonly, uponly;
- int foundit = 0, need_nl = 0;
- const struct afswtch *afp = 0;
- int addrcount;
- struct if_msghdr *ifm, *nextifm;
- struct ifa_msghdr *ifam;
- struct sockaddr_dl *sdl;
- char *buf, *lim, *next;
-
-
- size_t needed;
- int mib[6];
-
- /* Parse leading line options */
- all = allmedia = downonly = uponly = namesonly = 0;
- while ((c = getopt(argc, argv, "adlmu")) != -1) {
- switch (c) {
- case 'a': /* scan all interfaces */
- all++;
- break;
- case 'l': /* scan interface names only */
- namesonly++;
- break;
- case 'd': /* restrict scan to "down" interfaces */
- downonly++;
- break;
- case 'u': /* restrict scan to "down" interfaces */
- uponly++;
- break;
- case 'm': /* show media choices in status */
- #ifdef USE_IF_MEDIA
- allmedia++;
- #else
- fputs("WARNING: if_media not compiled in!\n", stderr);
- usage();
- #endif
- break;
- default:
- usage();
- break;
- }
- }
- argc -= optind;
- argv += optind;
-
- /* -l cannot be used with -a or -m */
- if (namesonly && (all || allmedia))
- usage();
-
- /* nonsense.. */
- if (uponly && downonly)
- usage();
-
- /* -a and -l allow an address family arg to limit the output */
- if (all || namesonly) {
- if (argc > 1)
- usage();
-
- if (argc == 1) {
- for (afp = afs; afp->af_name; afp++)
- if (strcmp(afp->af_name, *argv) == 0) {
- argc--, argv++;
- break;
- }
- if (afp->af_name == NULL)
- usage();
- /* leave with afp non-zero */
- }
- } else {
- /* not listsing, need an argument */
- if (argc < 1)
- usage();
-
- strncpy(name, *argv, sizeof(name));
- argc--, argv++;
- }
-
- /* Check for address family */
- if (argc > 0) {
- for (afp = afs; afp->af_name; afp++)
- if (strcmp(afp->af_name, *argv) == 0) {
- argc--, argv++;
- break;
- }
- if (afp->af_name == NULL)
- afp = NULL; /* not a family, NULL */
- }
-
- mib[0] = CTL_NET;
- mib[1] = PF_ROUTE;
- mib[2] = 0;
- mib[3] = 0; /* address family */
- mib[4] = NET_RT_IFLIST;
- mib[5] = 0;
-
- /* if particular family specified, only ask about it */
- if (afp)
- mib[3] = afp->af_af;
-
- if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0)
- errx(1, "iflist-sysctl-estimate");
- if ((buf = malloc(needed)) == NULL)
- errx(1, "malloc");
- if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0)
- errx(1, "actual retrieval of interface table");
- lim = buf + needed;
-
- next = buf;
- while (next < lim) {
-
- ifm = (struct if_msghdr *)next;
-
- if (ifm->ifm_type == RTM_IFINFO) {
- sdl = (struct sockaddr_dl *)(ifm + 1);
- flags = ifm->ifm_flags;
- } else {
- fprintf(stderr, "out of sync parsing NET_RT_IFLIST\n");
- fprintf(stderr, "expected %d, got %d\n", RTM_IFINFO,
- ifm->ifm_type);
- fprintf(stderr, "msglen = %d\n", ifm->ifm_msglen);
- fprintf(stderr, "buf:%p, next:%p, lim:%p\n", buf, next,
- lim);
- exit (1);
- }
-
- next += ifm->ifm_msglen;
- ifam = NULL;
- addrcount = 0;
- while (next < lim) {
-
- nextifm = (struct if_msghdr *)next;
-
- if (nextifm->ifm_type != RTM_NEWADDR)
- break;
-
- if (ifam == NULL)
- ifam = (struct ifa_msghdr *)nextifm;
-
- addrcount++;
- next += nextifm->ifm_msglen;
- }
-
- if (all || namesonly) {
- if (uponly)
- if ((flags & IFF_UP) == 0)
- continue; /* not up */
- if (downonly)
- if (flags & IFF_UP)
- continue; /* not down */
- strncpy(name, sdl->sdl_data, sdl->sdl_nlen);
- name[sdl->sdl_nlen] = '\0';
- if (namesonly) {
- if (need_nl)
- putchar(' ');
- fputs(name, stdout);
- need_nl++;
- continue;
- }
- } else {
- if (strlen(name) != sdl->sdl_nlen)
- continue; /* not same len */
- if (strncmp(name, sdl->sdl_data, sdl->sdl_nlen) != 0)
- continue; /* not same name */
- }
-
- if (argc > 0)
- ifconfig(argc, argv, afp);
- else
- status(afp, addrcount, sdl, ifm, ifam);
-
- if (all == 0 && namesonly == 0) {
- foundit++; /* flag it as 'done' */
- break;
- }
- }
- free(buf);
-
- if (namesonly && need_nl > 0)
- putchar('\n');
-
- if (all == 0 && namesonly == 0 && foundit == 0)
- errx(1, "interface %s does not exist", name);
-
-
- exit (0);
- }
-
-
- int
- ifconfig(argc, argv, afp)
- int argc;
- char *const *argv;
- const struct afswtch *afp;
- {
- int s;
-
- if (afp == NULL)
- afp = &afs[0];
- ifr.ifr_addr.sa_family = afp->af_af;
- strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
-
- if ((s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0)) < 0) {
- perror("ifconfig: socket");
- exit(1);
- }
-
- while (argc > 0) {
- register const struct cmd *p;
-
- for (p = cmds; p->c_name; p++)
- if (strcmp(*argv, p->c_name) == 0)
- break;
- if (p->c_name == 0 && setaddr)
- p++; /* got src, do dst */
- if (p->c_func) {
- if (p->c_parameter == NEXTARG) {
- if (argv[1] == NULL)
- errx(1, "'%s' requires argument",
- p->c_name);
- (*p->c_func)(argv[1], 0, s, afp);
- argc--, argv++;
- } else
- (*p->c_func)(*argv, p->c_parameter, s, afp);
- }
- argc--, argv++;
- }
- #ifdef ISO
- if (af == AF_ISO)
- adjust_nsellength();
- #endif
- if (setipdst && ifr.ifr_addr.sa_family == AF_IPX) {
- struct ipxip_req rq;
- int size = sizeof(rq);
-
- rq.rq_ipx = addreq.ifra_addr;
- rq.rq_ip = addreq.ifra_dstaddr;
-
- if (setsockopt(s, 0, SO_IPXIP_ROUTE, &rq, size) < 0)
- Perror("Encapsulation Routing");
- }
- if (ifr.ifr_addr.sa_family == AF_APPLETALK)
- checkatrange((struct sockaddr_at *) &addreq.ifra_addr);
- #ifdef NS
- if (setipdst && ifr.ifr_addr.sa_family == AF_NS) {
- struct nsip_req rq;
- int size = sizeof(rq);
-
- rq.rq_ns = addreq.ifra_addr;
- rq.rq_ip = addreq.ifra_dstaddr;
-
- if (setsockopt(s, 0, SO_NSIP_ROUTE, &rq, size) < 0)
- Perror("Encapsulation Routing");
- }
- #endif
- if (clearaddr) {
- if (afp->af_ridreq == NULL || afp->af_difaddr == 0) {
- warnx("interface %s cannot change %s addresses!",
- name, afp->af_name);
- clearaddr = NULL;
- }
- }
- if (clearaddr) {
- int ret;
- strncpy(afp->af_ridreq, name, sizeof ifr.ifr_name);
- if ((ret = ioctl(s, afp->af_difaddr, afp->af_ridreq)) < 0) {
- if (errno == EADDRNOTAVAIL && (doalias >= 0)) {
- /* means no previous address for interface */
- } else
- Perror("ioctl (SIOCDIFADDR)");
- }
- }
- if (newaddr) {
- if (afp->af_ridreq == NULL || afp->af_difaddr == 0) {
- warnx("interface %s cannot change %s addresses!",
- name, afp->af_name);
- newaddr = NULL;
- }
- }
- if (newaddr) {
- strncpy(afp->af_addreq, name, sizeof ifr.ifr_name);
- if (ioctl(s, afp->af_aifaddr, afp->af_addreq) < 0)
- Perror("ioctl (SIOCAIFADDR)");
- }
- close(s);
- return(0);
- }
- #define RIDADDR 0
- #define ADDR 1
- #define MASK 2
- #define DSTADDR 3
-
- /*ARGSUSED*/
- void
- setifaddr(addr, param, s, afp)
- const char *addr;
- int param;
- int s;
- const struct afswtch *afp;
- {
- /*
- * Delay the ioctl to set the interface addr until flags are all set.
- * The address interpretation may depend on the flags,
- * and the flags may change when the address is set.
- */
- setaddr++;
- if (doalias == 0)
- clearaddr = 1;
- (*afp->af_getaddr)(addr, (doalias >= 0 ? ADDR : RIDADDR));
- }
-
- void
- setifnetmask(addr, dummy, s, afp)
- const char *addr;
- int dummy __unused;
- int s;
- const struct afswtch *afp;
- {
- (*afp->af_getaddr)(addr, MASK);
- }
-
- void
- setifbroadaddr(addr, dummy, s, afp)
- const char *addr;
- int dummy __unused;
- int s;
- const struct afswtch *afp;
- {
- (*afp->af_getaddr)(addr, DSTADDR);
- }
-
- void
- setifipdst(addr, dummy, s, afp)
- const char *addr;
- int dummy __unused;
- int s;
- const struct afswtch *afp;
- {
- in_getaddr(addr, DSTADDR);
- setipdst++;
- clearaddr = 0;
- newaddr = 0;
- }
- #define rqtosa(x) (&(((struct ifreq *)(afp->x))->ifr_addr))
-
- void
- notealias(addr, param, s, afp)
- const char *addr;
- int param;
- int s;
- const struct afswtch *afp;
- {
- if (setaddr && doalias == 0 && param < 0)
- bcopy((caddr_t)rqtosa(af_addreq),
- (caddr_t)rqtosa(af_ridreq),
- rqtosa(af_addreq)->sa_len);
- doalias = param;
- if (param < 0) {
- clearaddr = 1;
- newaddr = 0;
- } else
- clearaddr = 0;
- }
-
- /*ARGSUSED*/
- void
- setifdstaddr(addr, param, s, afp)
- const char *addr;
- int param __unused;
- int s;
- const struct afswtch *afp;
- {
- (*afp->af_getaddr)(addr, DSTADDR);
- }
-
- void
- setifflags(vname, value, s, afp)
- const char *vname;
- int value;
- int s;
- const struct afswtch *afp;
- {
- if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&ifr) < 0) {
- Perror("ioctl (SIOCGIFFLAGS)");
- exit(1);
- }
- strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
- flags = ifr.ifr_flags;
-
- if (value < 0) {
- value = -value;
- flags &= ~value;
- } else
- flags |= value;
- ifr.ifr_flags = flags;
- if (ioctl(s, SIOCSIFFLAGS, (caddr_t)&ifr) < 0)
- Perror(vname);
- }
-
- void
- setifmetric(val, dummy, s, afp)
- const char *val;
- int dummy __unused;
- int s;
- const struct afswtch *afp;
- {
- strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
- ifr.ifr_metric = atoi(val);
- if (ioctl(s, SIOCSIFMETRIC, (caddr_t)&ifr) < 0)
- perror("ioctl (set metric)");
- }
-
- void
- setifmtu(val, dummy, s, afp)
- const char *val;
- int dummy __unused;
- int s;
- const struct afswtch *afp;
- {
- strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
- ifr.ifr_mtu = atoi(val);
- if (ioctl(s, SIOCSIFMTU, (caddr_t)&ifr) < 0)
- perror("ioctl (set mtu)");
- }
-
- #ifdef ISO
- void
- setsnpaoffset(val, dummy)
- char *val;
- int dummy __unused;
- {
- iso_addreq.ifra_snpaoffset = atoi(val);
- }
- #endif
-
- #define IFFBITS \
- "\020\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5POINTOPOINT\6b6\7RUNNING" \
- "\10NOARP\11PROMISC\12ALLMULTI\13OACTIVE\14SIMPLEX\15LINK0\16LINK1\17LINK2" \
- "\20MULTICAST"
-
- /*
- * Print the status of the interface. If an address family was
- * specified, show it and it only; otherwise, show them all.
- */
- void
- status(afp, addrcount, sdl, ifm, ifam)
- const struct afswtch *afp;
- int addrcount;
- struct sockaddr_dl *sdl;
- struct if_msghdr *ifm;
- struct ifa_msghdr *ifam;
- {
- const struct afswtch *p = NULL;
- struct rt_addrinfo info;
- int allfamilies, s;
-
- if (afp == NULL) {
- allfamilies = 1;
- afp = &afs[0];
- } else
- allfamilies = 0;
-
- ifr.ifr_addr.sa_family = afp->af_af;
- strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
-
- if ((s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0)) < 0) {
- perror("ifconfig: socket");
- exit(1);
- }
-
- /*
- * XXX is it we are doing a SIOCGIFMETRIC etc for one family.
- * is it possible that the metric and mtu can be different for
- * each family? If so, we have a format problem, because the
- * metric and mtu is printed on the global the flags line.
- */
- if (ioctl(s, SIOCGIFMETRIC, (caddr_t)&ifr) < 0)
- perror("ioctl (SIOCGIFMETRIC)");
- else
- metric = ifr.ifr_metric;
-
- if (ioctl(s, SIOCGIFMTU, (caddr_t)&ifr) < 0)
- perror("ioctl (SIOCGIFMTU)");
- else
- mtu = ifr.ifr_mtu;
-
- printf("%s: ", name);
- printb("flags", (flags & IFF_PROMISC) ? (flags ^ IFF_PROMISC) : flags, IFFBITS);
- if (metric)
- printf(" metric %d", metric);
- if (mtu)
- printf(" mtu %d", mtu);
- putchar('\n');
-
- while (addrcount > 0) {
-
- info.rti_addrs = ifam->ifam_addrs;
-
- /* Expand the compacted addresses */
- rt_xaddrs((char *)(ifam + 1), ifam->ifam_msglen + (char *)ifam,
- &info);
-
- if (!allfamilies) {
- if (afp->af_af == info.rti_info[RTAX_IFA]->sa_family &&
- #ifdef USE_IF_MEDIA
- afp->af_status != media_status &&
- #endif
- afp->af_status != ether_status) {
- p = afp;
- (*p->af_status)(s, &info);
- }
- } else for (p = afs; p->af_name; p++) {
- if (p->af_af == info.rti_info[RTAX_IFA]->sa_family &&
- #ifdef USE_IF_MEDIA
- p->af_status != media_status &&
- #endif
- p->af_status != ether_status)
- (*p->af_status)(s, &info);
- }
- addrcount--;
- ifam = (struct ifa_msghdr *)((char *)ifam + ifam->ifam_msglen);
- }
- if (allfamilies || afp->af_status == ether_status)
- ether_status(s, (struct rt_addrinfo *)sdl);
- #ifdef USE_IF_MEDIA
- if (allfamilies || afp->af_status == media_status)
- media_status(s, NULL);
- #endif
- if (!allfamilies && !p && afp->af_status != media_status &&
- afp->af_status != ether_status)
- warnx("%s has no %s interface address!", name, afp->af_name);
-
- close(s);
- return;
- }
-
- void
- in_status(s, info)
- int s __unused;
- struct rt_addrinfo * info;
- {
- struct sockaddr_in *sin, null_sin;
-
- memset(&null_sin, 0, sizeof(null_sin));
-
- sin = (struct sockaddr_in *)info->rti_info[RTAX_IFA];
- printf("\tinet %s ", inet_ntoa(sin->sin_addr));
-
- if (flags & IFF_POINTOPOINT) {
- /* note RTAX_BRD overlap with IFF_BROADCAST */
- sin = (struct sockaddr_in *)info->rti_info[RTAX_BRD];
- if (!sin)
- sin = &null_sin;
- printf("--> %s ", inet_ntoa(sin->sin_addr));
- }
-
- sin = (struct sockaddr_in *)info->rti_info[RTAX_NETMASK];
- if (!sin)
- sin = &null_sin;
- printf("netmask 0x%lx ", (unsigned long)ntohl(sin->sin_addr.s_addr));
-
- if (flags & IFF_BROADCAST) {
- /* note RTAX_BRD overlap with IFF_POINTOPOINT */
- sin = (struct sockaddr_in *)info->rti_info[RTAX_BRD];
- if (sin && sin->sin_addr.s_addr != 0)
- printf("broadcast %s", inet_ntoa(sin->sin_addr));
- }
- putchar('\n');
- }
-
- void
- ipx_status(s, info)
- int s __unused;
- struct rt_addrinfo * info;
- {
- struct sockaddr_ipx *sipx, null_sipx;
-
- memset(&null_sipx, 0, sizeof(null_sipx));
-
- sipx = (struct sockaddr_ipx *)info->rti_info[RTAX_IFA];
- printf("\tipx %s ", ipx_ntoa(sipx->sipx_addr));
-
- if (flags & IFF_POINTOPOINT) {
- sipx = (struct sockaddr_ipx *)info->rti_info[RTAX_BRD];
- if (!sipx)
- sipx = &null_sipx;
- printf("--> %s ", ipx_ntoa(sipx->sipx_addr));
- }
- putchar('\n');
- }
-
- void
- at_status(s, info)
- int s __unused;
- struct rt_addrinfo * info;
- {
- struct sockaddr_at *sat, null_sat;
- struct netrange *nr;
-
- memset(&null_sat, 0, sizeof(null_sat));
-
- sat = (struct sockaddr_at *)info->rti_info[RTAX_IFA];
- nr = &sat->sat_range.r_netrange;
- printf("\tatalk %d.%d range %d-%d phase %d",
- ntohs(sat->sat_addr.s_net), sat->sat_addr.s_node,
- ntohs(nr->nr_firstnet), ntohs(nr->nr_lastnet), nr->nr_phase);
- if (flags & IFF_POINTOPOINT) {
- /* note RTAX_BRD overlap with IFF_BROADCAST */
- sat = (struct sockaddr_at *)info->rti_info[RTAX_BRD];
- if (!sat)
- sat = &null_sat;
- printf("--> %d.%d",
- ntohs(sat->sat_addr.s_net), sat->sat_addr.s_node);
- }
- if (flags & IFF_BROADCAST) {
- /* note RTAX_BRD overlap with IFF_POINTOPOINT */
- sat = (struct sockaddr_at *)info->rti_info[RTAX_BRD];
- if (sat)
- printf(" broadcast %d.%d",
- ntohs(sat->sat_addr.s_net),
- sat->sat_addr.s_node);
- }
-
- putchar('\n');
- }
-
- #ifdef NS
- void
- xns_status(s, info)
- int s __unused;
- struct rt_addrinfo * info;
- {
- struct sockaddr_ns *sns, null_sns;
-
- memset(&null_sns, 0, sizeof(null_sns));
-
- sns = (struct sockaddr_ns *)info->rti_info[RTAX_IFA];
- printf("\tns %s ", ns_ntoa(sns->sns_addr));
-
- if (flags & IFF_POINTOPOINT) {
- sns = (struct sockaddr_ns *)info->rti_info[RTAX_BRD];
- if (!sns)
- sns = &null_sns;
- printf("--> %s ", ns_ntoa(sns->sns_addr));
- }
-
- putchar('\n');
- close(s);
- }
- #endif
-
- #ifdef ISO
- void
- iso_status(s, info)
- int s __unused;
- struct rt_addrinfo * info;
- {
- struct sockaddr_iso *siso, null_siso;
-
- memset(&null_siso, 0, sizeof(null_siso));
-
- siso = (struct sockaddr_iso *)info->rti_info[RTAX_IFA];
- printf("\tiso %s ", iso_ntoa(&siso->siso_addr));
-
- if (flags & IFF_POINTOPOINT) {
- siso = (struct sockaddr_iso *)info->rti_info[RTAX_BRD];
- if (!siso)
- siso = &null_siso;
- printf("--> %s ", iso_ntoa(&siso->siso_addr));
- }
-
- siso = (struct sockaddr_iso *)info->rti_info[RTAX_NETMASK];
- if (siso)
- printf(" netmask %s ", iso_ntoa(&siso->siso_addr));
-
- putchar('\n');
- }
- #endif
-
- void
- ether_status(s, info)
- int s __unused;
- struct rt_addrinfo *info;
- {
- char *cp;
- int n;
- struct sockaddr_dl *sdl = (struct sockaddr_dl *)info;
-
- cp = (char *)LLADDR(sdl);
- if ((n = sdl->sdl_alen) > 0) {
- if (sdl->sdl_type == IFT_ETHER)
- printf ("\tether ");
- else
- printf ("\tlladdr ");
- while (--n >= 0)
- printf("%02x%c",*cp++ & 0xff, n>0? ':' : ' ');
- putchar('\n');
- }
- }
-
- void
- Perror(cmd)
- const char *cmd;
- {
- switch (errno) {
-
- case ENXIO:
- errx(1, "%s: no such interface", cmd);
- break;
-
- case EPERM:
- errx(1, "%s: permission denied", cmd);
- break;
-
- default:
- err(1, "%s", cmd);
- }
- }
-
- #define SIN(x) ((struct sockaddr_in *) &(x))
- struct sockaddr_in *sintab[] = {
- SIN(ridreq.ifr_addr), SIN(addreq.ifra_addr),
- SIN(addreq.ifra_mask), SIN(addreq.ifra_broadaddr)};
-
- void
- in_getaddr(s, which)
- const char *s;
- int which;
- {
- register struct sockaddr_in *sin = sintab[which];
- struct hostent *hp;
- struct netent *np;
-
- sin->sin_len = sizeof(*sin);
- if (which != MASK)
- sin->sin_family = AF_INET;
-
- if (inet_aton(s, &sin->sin_addr))
- return;
- if ((hp = gethostbyname(s)) != 0)
- bcopy(hp->h_addr, (char *)&sin->sin_addr, hp->h_length);
- else if ((np = getnetbyname(s)) != 0)
- sin->sin_addr = inet_makeaddr(np->n_net, INADDR_ANY);
- else
- errx(1, "%s: bad value", s);
- }
-
- /*
- * Print a value a la the %b format of the kernel's printf
- */
- void
- printb(s, v, bits)
- const char *s;
- register unsigned v;
- register const char *bits;
- {
- register int i, any = 0;
- register char c;
-
- if (bits && *bits == 8)
- printf("%s=%o", s, v);
- else
- printf("%s=%x", s, v);
- bits++;
- if (bits) {
- putchar('<');
- while ((i = *bits++) != '\0') {
- if (v & (1 << (i-1))) {
- if (any)
- putchar(',');
- any = 1;
- for (; (c = *bits) > 32; bits++)
- putchar(c);
- } else
- for (; *bits > 32; bits++)
- ;
- }
- putchar('>');
- }
- }
-
- #define SIPX(x) ((struct sockaddr_ipx *) &(x))
- struct sockaddr_ipx *sipxtab[] = {
- SIPX(ridreq.ifr_addr), SIPX(addreq.ifra_addr),
- SIPX(addreq.ifra_mask), SIPX(addreq.ifra_broadaddr)};
-
- void
- ipx_getaddr(addr, which)
- const char *addr;
- int which;
- {
- struct sockaddr_ipx *sipx = sipxtab[which];
-
- sipx->sipx_family = AF_IPX;
- sipx->sipx_len = sizeof(*sipx);
- sipx->sipx_addr = ipx_addr(addr);
- if (which == MASK)
- printf("Attempt to set IPX netmask will be ineffectual\n");
- }
-
- void
- at_getaddr(addr, which)
- const char *addr;
- int which;
- {
- struct sockaddr_at *sat = (struct sockaddr_at *) &addreq.ifra_addr;
- u_int net, node;
-
- sat->sat_family = AF_APPLETALK;
- sat->sat_len = sizeof(*sat);
- if (which == MASK)
- errx(1, "AppleTalk does not use netmasks\n");
- if (sscanf(addr, "%u.%u", &net, &node) != 2
- || net > 0xffff || node > 0xfe)
- errx(1, "%s: illegal address", addr);
- sat->sat_addr.s_net = htons(net);
- sat->sat_addr.s_node = node;
- }
-
- /* XXX FIXME -- should use strtoul for better parsing. */
- void
- setatrange(range, dummy, s, afp)
- const char *range;
- int dummy __unused;
- int s;
- const struct afswtch *afp;
- {
- u_short first = 123, last = 123;
-
- if (sscanf(range, "%hu-%hu", &first, &last) != 2
- || first == 0 || first > 0xffff
- || last == 0 || last > 0xffff || first > last)
- errx(1, "%s: illegal net range: %u-%u", range, first, last);
- at_nr.nr_firstnet = htons(first);
- at_nr.nr_lastnet = htons(last);
- }
-
- void
- setatphase(phase, dummy, s, afp)
- const char *phase;
- int dummy __unused;
- int s;
- const struct afswtch *afp;
- {
- if (!strcmp(phase, "1"))
- at_nr.nr_phase = 1;
- else if (!strcmp(phase, "2"))
- at_nr.nr_phase = 2;
- else
- errx(1, "%s: illegal phase", phase);
- }
-
- void
- checkatrange(struct sockaddr_at *sat)
- {
- if (at_nr.nr_phase == 0)
- at_nr.nr_phase = 2; /* Default phase 2 */
- if (at_nr.nr_firstnet == 0)
- at_nr.nr_firstnet = /* Default range of one */
- at_nr.nr_lastnet = sat->sat_addr.s_net;
- printf("\tatalk %d.%d range %d-%d phase %d\n",
- ntohs(sat->sat_addr.s_net), sat->sat_addr.s_node,
- ntohs(at_nr.nr_firstnet), ntohs(at_nr.nr_lastnet), at_nr.nr_phase);
- if ((u_short) ntohs(at_nr.nr_firstnet) >
- (u_short) ntohs(sat->sat_addr.s_net)
- || (u_short) ntohs(at_nr.nr_lastnet) <
- (u_short) ntohs(sat->sat_addr.s_net))
- errx(1, "AppleTalk address is not in range");
- sat->sat_range.r_netrange = at_nr;
- }
-
- #ifdef NS
- #define SNS(x) ((struct sockaddr_ns *) &(x))
- struct sockaddr_ns *snstab[] = {
- SNS(ridreq.ifr_addr), SNS(addreq.ifra_addr),
- SNS(addreq.ifra_mask), SNS(addreq.ifra_broadaddr)};
-
- void
- xns_getaddr(addr, which)
- const char *addr;
- int which;
- {
- struct sockaddr_ns *sns = snstab[which];
-
- sns->sns_family = AF_NS;
- sns->sns_len = sizeof(*sns);
- sns->sns_addr = ns_addr(addr);
- if (which == MASK)
- printf("Attempt to set XNS netmask will be ineffectual\n");
- }
- #endif
-
- #ifdef ISO
- #define SISO(x) ((struct sockaddr_iso *) &(x))
- struct sockaddr_iso *sisotab[] = {
- SISO(iso_ridreq.ifr_Addr), SISO(iso_addreq.ifra_addr),
- SISO(iso_addreq.ifra_mask), SISO(iso_addreq.ifra_dstaddr)};
-
- void
- iso_getaddr(addr, which)
- char *addr;
- {
- register struct sockaddr_iso *siso = sisotab[which];
- struct iso_addr *iso_addr();
- siso->siso_addr = *iso_addr(addr);
-
- if (which == MASK) {
- siso->siso_len = TSEL(siso) - (caddr_t)(siso);
- siso->siso_nlen = 0;
- } else {
- siso->siso_len = sizeof(*siso);
- siso->siso_family = AF_ISO;
- }
- }
-
- void
- setnsellength(val)
- char *val;
- {
- nsellength = atoi(val);
- if (nsellength < 0)
- errx(1, "Negative NSEL length is absurd");
- if (afp == 0 || afp->af_af != AF_ISO)
- errx(1, "Setting NSEL length valid only for iso");
- }
-
- void
- fixnsel(s)
- register struct sockaddr_iso *s;
- {
- if (s->siso_family == 0)
- return;
- s->siso_tlen = nsellength;
- }
-
- void
- adjust_nsellength()
- {
- fixnsel(sisotab[RIDADDR]);
- fixnsel(sisotab[ADDR]);
- fixnsel(sisotab[DSTADDR]);
- }
- #endif
-