/* * 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 1.27 1997/05/04 06:27:45 peter Exp $"; #endif /* not lint */ #include #include #include #include #include #include #include #include #include #include /* IP */ #include #include #include #include /* IPX */ #define IPXIP #define IPTUNNEL #include #include /* Appletalk */ #include /* XNS */ #ifdef NS #define NSIP #include #include #endif /* OSI */ #ifdef ISO #define EON #include #include #endif #include #include #include #include #include #include #include #include #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 */ struct if_msghdr *ifm; struct ifa_msghdr *ifam; struct sockaddr_dl *sdl; struct rt_addrinfo info; char *buf, *lim, *next; 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 *rafp)); void notealias __P((const char *, int, int)); 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((void)); void usage __P((void)); typedef void c_func __P((const char *cmd, int arg, int s)); 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)); } 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)); 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!! */ { 0, 0, 0, 0 } }; const struct afswtch *afp; /*the address family being set or asked about*/ /* * 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; 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; for (next = buf; next < lim; next += ifm->ifm_msglen) { ifm = (struct if_msghdr *)next; /* XXX: Swallow up leftover NEWADDR messages */ if (ifm->ifm_type == RTM_NEWADDR) continue; if (ifm->ifm_type == RTM_IFINFO) { sdl = (struct sockaddr_dl *)(ifm + 1); flags = ifm->ifm_flags; } else { errx(1, "out of sync parsing NET_RT_IFLIST"); } 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 */ } ifconfig(argc, argv, afp); 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, rafp) int argc; char *const *argv; const struct afswtch *rafp; { int s; strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name); if (rafp == NULL) rafp = &afs[0]; ifr.ifr_addr.sa_family = rafp->af_af; if ((s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0)) < 0) { perror("ifconfig: socket"); exit(1); } 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; if (argc == 0) { status(); /* uses global afp */ #ifdef USE_IF_MEDIA media_status(s); #endif close(s); return(0); } 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); argc--, argv++; } else (*p->c_func)(*argv, p->c_parameter, s); } 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 (rafp->af_ridreq == NULL || rafp->af_difaddr == 0) { warnx("interface %s cannot change %s addresses!", name, rafp->af_name); clearaddr = NULL; } } if (clearaddr) { int ret; strncpy(rafp->af_ridreq, name, sizeof ifr.ifr_name); if ((ret = ioctl(s, rafp->af_difaddr, rafp->af_ridreq)) < 0) { if (errno == EADDRNOTAVAIL && (doalias >= 0)) { /* means no previous address for interface */ } else Perror("ioctl (SIOCDIFADDR)"); } } if (newaddr) { if (rafp->af_ridreq == NULL || rafp->af_difaddr == 0) { warnx("interface %s cannot change %s addresses!", name, rafp->af_name); newaddr = NULL; } } if (newaddr) { strncpy(rafp->af_addreq, name, sizeof ifr.ifr_name); if (ioctl(s, rafp->af_aifaddr, rafp->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) const char *addr; int param; int s; { /* * 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) const char *addr; int dummy __unused; int s; { (*afp->af_getaddr)(addr, MASK); } void setifbroadaddr(addr, dummy, s) const char *addr; int dummy __unused; int s; { (*afp->af_getaddr)(addr, DSTADDR); } void setifipdst(addr, dummy, s) const char *addr; int dummy __unused; int s; { in_getaddr(addr, DSTADDR); setipdst++; clearaddr = 0; newaddr = 0; } #define rqtosa(x) (&(((struct ifreq *)(afp->x))->ifr_addr)) void notealias(addr, param, s) const char *addr; int param; int s; { 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) const char *addr; int param __unused; int s; { (*afp->af_getaddr)(addr, DSTADDR); } void setifflags(vname, value, s) const char *vname; int value; int s; { 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) const char *val; int dummy __unused; int s; { 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) const char *val; int dummy __unused; int s; { 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() { const struct afswtch *p = NULL; char *mynext; struct if_msghdr *myifm; printf("%s: ", name); printb("flags", flags, IFFBITS); if (metric) printf(" metric %d", metric); if (mtu) printf(" mtu %d", mtu); putchar('\n'); /* * XXX: Sigh. This is bad, I know. At this point, we may have * *zero* RTM_NEWADDR's, so we have to "feel the water" before * incrementing the loop. One day, I might feel inspired enough * to get the top level loop to pass a count down here so we * dont have to mess with this. -Peter */ myifm = ifm; while (1) { mynext = next + ifm->ifm_msglen; if (mynext >= lim) break; myifm = (struct if_msghdr *)mynext; if (myifm->ifm_type != RTM_NEWADDR) break; next = mynext; ifm = (struct if_msghdr *)next; ifam = (struct ifa_msghdr *)myifm; info.rti_addrs = ifam->ifam_addrs; /* Expand the compacted addresses */ rt_xaddrs((char *)(ifam + 1), ifam->ifam_msglen + (char *)ifam, &info); if (afp) { if (afp->af_af == info.rti_info[RTAX_IFA]->sa_family && afp->af_status != ether_status) { p = afp; if (p->af_status != ether_status) (*p->af_status)(1); } } else for (p = afs; p->af_name; p++) { if (p->af_af == info.rti_info[RTAX_IFA]->sa_family && p->af_status != ether_status) (*p->af_status)(0); } } if (afp == NULL || afp->af_status == ether_status) ether_status(0); else if (afp && !p) { warnx("%s has no %s IFA address!", name, afp->af_name); } } void in_status(force) int force; { struct sockaddr_in *sin, null_sin; memset(&null_sin, 0, sizeof(null_sin)); sin = (struct sockaddr_in *)info.rti_info[RTAX_IFA]; if (!sin || sin->sin_family != AF_INET) { if (!force) return; /* warnx("%s has no AF_INET IFA address!", name); */ sin = &null_sin; } 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(force) int force; { struct sockaddr_ipx *sipx, null_sipx; int s; s = socket(AF_IPX, SOCK_DGRAM, 0); if (s < 0) { if (errno == EPROTONOSUPPORT) return; perror("ifconfig: socket"); exit(1); } memset(&null_sipx, 0, sizeof(null_sipx)); sipx = (struct sockaddr_ipx *)info.rti_info[RTAX_IFA]; if (!sipx || sipx->sipx_family != AF_IPX) { if (!force) { close(s); return; } warnx("%s has no AF_IPX IFA address!", name); sipx = &null_sipx; } 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'); close(s); } void at_status(force) int force; { 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]; if (!sat || sat->sat_family != AF_APPLETALK) { if (!force) return; sat = &null_sat; } 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(force) int force; { struct sockaddr_ns *sns, null_sns; int s; s = socket(AF_NS, SOCK_DGRAM, 0); if (s < 0) { if (errno == EPROTONOSUPPORT) return; perror("ifconfig: socket"); exit(1); } memset(&null_sns, 0, sizeof(null_sns)); sns = (struct sockaddr_ns *)info.rti_info[RTAX_IFA]; if (!sns || sns->sns_family != AF_NS) { if (!force) { close(s); return; } /* warnx("%s has no AF_NS IFA address!", name); */ sns = &null_sns; } 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(force) int force; { struct sockaddr_iso *siso, null_siso; int s; s = socket(AF_ISO, SOCK_DGRAM, 0); if (s < 0) { if (errno == EPROTONOSUPPORT) return; perror("ifconfig: socket"); exit(1); } memset(&null_siso, 0, sizeof(null_siso)); siso = (struct sockaddr_iso *)info.rti_info[RTAX_IFA]; if (!siso || siso->siso_family != AF_ISO) { if (!force) { close(s); return; } /* warnx("%s has no AF_ISO IFA address!", name); */ siso = &null_siso; } printf("\tiso %s ", iso_ntoa(&siso->siso_addr)); /* XXX: is this right? is the ISO netmask meant to be before P2P? */ siso = (struct sockaddr_iso *)info.rti_info[RTAX_NETMASK]; if (siso) printf(" netmask %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)); } putchar('\n'); close(s); } #endif void ether_status(force) int force __unused; { char *cp; int n; 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) const char *range; int dummy __unused; int s; { 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) const char *phase; int dummy __unused; int s; { 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