/* * 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 #if 0 static char sccsid[] = "@(#)ifconfig.c 8.2 (Berkeley) 2/16/94"; #endif static const char rcsid[] = "$FreeBSD$"; #endif /* not lint */ #include #include #include #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 */ #include #include #include #include #include #include #include #include #include "ifconfig.h" /* wrapper for KAME-special getnameinfo() */ #ifndef NI_WITHSCOPEID #define NI_WITHSCOPEID 0 #endif struct ifreq ifr, ridreq; struct ifaliasreq addreq; #ifdef INET6 struct in6_ifreq in6_ridreq; struct in6_aliasreq in6_addreq; #endif struct sockaddr_in netmask; struct netrange at_nr; /* AppleTalk net range */ char name[32]; int flags; int metric; int mtu; int setaddr; int setipdst; int doalias; int clearaddr; int newaddr = 1; #ifdef INET6 static int ip6lifetime; #endif struct afswtch; #ifdef INET6 char addr_buf[MAXHOSTNAMELEN *2 + 1]; /*for getnameinfo()*/ #endif 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)); void ifmaybeload __P((char *name)); #ifdef INET6 int prefix __P((void *, int)); static char *sec2str __P((time_t)); int explicit_prefix = 0; #endif 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; #ifdef INET6 c_func setifprefixlen; c_func setip6flags; #endif c_func setifipdst; c_func setifflags, setifmetric, setifmtu, setiflladdr; #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 }, { "add", IFF_UP, notealias }, { "alias", IFF_UP, notealias }, { "-alias", -IFF_UP, notealias }, { "delete", -IFF_UP, notealias }, { "remove", -IFF_UP, notealias }, #ifdef notdef #define EN_SWABIPS 0x1000 { "swabips", EN_SWABIPS, setifflags }, { "-swabips", -EN_SWABIPS, setifflags }, #endif { "netmask", NEXTARG, setifnetmask }, #ifdef INET6 { "prefixlen", NEXTARG, setifprefixlen }, { "anycast", IN6_IFF_ANYCAST, setip6flags }, { "tentative", IN6_IFF_TENTATIVE, setip6flags }, { "-tentative", -IN6_IFF_TENTATIVE, setip6flags }, #endif { "range", NEXTARG, setatrange }, { "phase", NEXTARG, setatphase }, { "metric", NEXTARG, setifmetric }, { "broadcast", NEXTARG, setifbroadaddr }, { "ipdst", NEXTARG, setifipdst }, { "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 #ifdef USE_VLANS { "vlan", NEXTARG, setvlantag }, { "vlandev", NEXTARG, setvlandev }, { "-vlandev", NEXTARG, unsetvlandev }, #endif { "normal", -IFF_LINK0, setifflags }, { "compress", IFF_LINK0, setifflags }, { "noicmp", IFF_LINK1, setifflags }, { "mtu", NEXTARG, setifmtu }, { "lladdr", NEXTARG, setiflladdr }, { 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)); typedef void af_getprefix __P((const char *, int)); af_status in_status, ipx_status, at_status, ether_status; af_getaddr in_getaddr, ipx_getaddr, at_getaddr, ether_getaddr; #ifdef INET6 af_status in6_status; af_getaddr in6_getaddr; af_getprefix in6_getprefix; #endif /*INET6*/ #ifdef NS af_status xns_status; af_getaddr xns_getaddr; #endif /* Known address families */ const struct afswtch { const char *af_name; short af_af; af_status *af_status; af_getaddr *af_getaddr; af_getprefix *af_getprefix; u_long af_difaddr; u_long af_aifaddr; caddr_t af_ridreq; caddr_t af_addreq; } afs[] = { #define C(x) ((caddr_t) &x) { "inet", AF_INET, in_status, in_getaddr, NULL, SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(addreq) }, #ifdef INET6 { "inet6", AF_INET6, in6_status, in6_getaddr, in6_getprefix, SIOCDIFADDR_IN6, SIOCAIFADDR_IN6, C(in6_ridreq), C(in6_addreq) }, #endif /*INET6*/ { "ipx", AF_IPX, ipx_status, ipx_getaddr, NULL, SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(addreq) }, { "atalk", AF_APPLETALK, at_status, at_getaddr, NULL, SIOCDIFADDR, SIOCAIFADDR, C(addreq), C(addreq) }, #ifdef NS { "ns", AF_NS, xns_status, xns_getaddr, NULL, SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(addreq) }, #endif { "ether", AF_LINK, ether_status, ether_getaddr, NULL, 0, SIOCSIFLLADDR, NULL, C(ridreq) }, #if 0 /* XXX conflicts with the media command */ #ifdef USE_IF_MEDIA { "media", AF_UNSPEC, media_status, NULL, NULL, }, /* XXX not real!! */ #endif #ifdef USE_VLANS { "vlan", AF_UNSPEC, vlan_status, NULL, 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() { #ifndef INET6 fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n", "usage: ifconfig interface address_family [address [dest_address]]", " [parameters]", " ifconfig -a [-d] [-u] [address_family]", " ifconfig -l [-d] [-u] [address_family]", " ifconfig [-d] [-u]"); #else fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n", "usage: ifconfig [-L] interface address_family [address [dest_address]]", " [parameters]", " ifconfig -a [-L] [-d] [-u] [address_family]", " ifconfig -l [-d] [-u] [address_family]", " ifconfig [-L] [-d] [-u]"); #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 = downonly = uponly = namesonly = 0; while ((c = getopt(argc, argv, "adlmu" #ifdef INET6 "L" #endif )) != -1) { switch (c) { case 'a': /* scan all interfaces */ all++; break; #ifdef INET6 case 'L': ip6lifetime++; /* print IPv6 address lifetime */ break; #endif case 'l': /* scan interface names only */ namesonly++; break; case 'd': /* restrict scan to "down" interfaces */ downonly++; break; case 'u': /* restrict scan to "up" interfaces */ uponly++; break; case 'm': /* show media choices in status */ /* ignored for compatibility */ break; default: usage(); break; } } argc -= optind; argv += optind; /* -l cannot be used with -a or -m */ if (namesonly && all) usage(); /* nonsense.. */ if (uponly && downonly) usage(); /* no arguments is equivalent to '-a' */ if (!namesonly && argc < 1) all = 1; /* -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 listing, need an argument */ if (argc < 1) usage(); strncpy(name, *argv, sizeof(name)); argc--, argv++; /* check and maybe load support for this interface */ ifmaybeload(name); } /* 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 (afp == NULL || afp->af_status != ether_status || sdl->sdl_type == IFT_ETHER) { 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 == AF_LINK ? AF_INET : afp->af_af; strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name); if ((s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0)) < 0) err(1, "socket"); 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 INET6 if (ifr.ifr_addr.sa_family == AF_INET6 && explicit_prefix == 0) { /* Aggregatable address architecture defines all prefixes are 64. So, it is convenient to set prefixlen to 64 if it is not specified. */ setifprefixlen("64", 0, s, afp); /* in6_getprefix("64", MASK) if MASK is available here... */ } #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_addreq == NULL || afp->af_aifaddr == 0) { warnx("interface %s cannot change %s addresses!", name, afp->af_name); newaddr = 0; } } 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; { if (*afp->af_getaddr == NULL) return; /* * 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 && afp->af_af != AF_LINK) 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; { if (*afp->af_getaddr == NULL) return; (*afp->af_getaddr)(addr, MASK); } #ifdef INET6 void setifprefixlen(addr, dummy, s, afp) const char *addr; int dummy __unused; int s; const struct afswtch *afp; { if (*afp->af_getprefix) (*afp->af_getprefix)(addr, MASK); explicit_prefix = 1; } void setip6flags(dummyaddr, flag, dummysoc, afp) const char *dummyaddr __unused; int flag; int dummysoc __unused; const struct afswtch *afp; { if (afp->af_af != AF_INET6) err(1, "address flags can be set only for inet6 addresses"); if (flag < 0) in6_addreq.ifra_flags &= ~(-flag); else in6_addreq.ifra_flags |= flag; } #endif void setifbroadaddr(addr, dummy, s, afp) const char *addr; int dummy __unused; int s; const struct afswtch *afp; { if (*afp->af_getaddr == NULL) return; (*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; { if (*afp->af_getaddr == NULL) return; (*afp->af_getaddr)(addr, DSTADDR); } /* * Note: doing an SIOCIGIFFLAGS scribbles on the union portion * of the ifreq structure, which may confuse other parts of ifconfig. * Make a private copy so we can avoid that. */ void setifflags(vname, value, s, afp) const char *vname; int value; int s; const struct afswtch *afp; { struct ifreq my_ifr; bcopy((char *)&ifr, (char *)&my_ifr, sizeof(struct ifreq)); if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&my_ifr) < 0) { Perror("ioctl (SIOCGIFFLAGS)"); exit(1); } strncpy(my_ifr.ifr_name, name, sizeof (my_ifr.ifr_name)); flags = my_ifr.ifr_flags; if (value < 0) { value = -value; flags &= ~value; } else flags |= value; my_ifr.ifr_flags = flags; if (ioctl(s, SIOCSIFFLAGS, (caddr_t)&my_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) warn("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) warn("ioctl (set mtu)"); } void setiflladdr(val, dummy, s, afp) const char *val; int dummy __unused; int s; const struct afswtch *afp; { struct ether_addr *ea; ea = ether_aton(val); if (ea == NULL) { warn("malformed link-level address"); return; } strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name)); ifr.ifr_addr.sa_len = ETHER_ADDR_LEN; ifr.ifr_addr.sa_family = AF_LINK; bcopy(ea, ifr.ifr_addr.sa_data, ETHER_ADDR_LEN); if (ioctl(s, SIOCSIFLLADDR, (caddr_t)&ifr) < 0) warn("ioctl (set lladdr)"); return; } #define IFFBITS \ "\020\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5POINTOPOINT\6SMART\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; struct ifstat ifs; if (afp == NULL) { allfamilies = 1; afp = &afs[0]; } else allfamilies = 0; ifr.ifr_addr.sa_family = afp->af_af == AF_LINK ? AF_INET : afp->af_af; strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name); if ((s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0)) < 0) err(1, "socket"); /* * 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) warn("ioctl (SIOCGIFMETRIC)"); else metric = ifr.ifr_metric; if (ioctl(s, SIOCGIFMTU, (caddr_t)&ifr) < 0) warn("ioctl (SIOCGIFMTU)"); else mtu = ifr.ifr_mtu; printf("%s: ", name); printb("flags", 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) { 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) (*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 #ifdef USE_VLANS if (allfamilies || afp->af_status == vlan_status) vlan_status(s, NULL); #endif strncpy(ifs.ifs_name, name, sizeof ifs.ifs_name); if (ioctl(s, SIOCGIFSTATUS, &ifs) == 0) printf("%s", ifs.ascii); if (!allfamilies && !p && afp->af_status != media_status && afp->af_status != ether_status && afp->af_status != vlan_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'); } #ifdef INET6 void in6_status(s, info) int s __unused; struct rt_addrinfo * info; { struct sockaddr_in6 *sin, null_sin; struct in6_ifreq ifr6; int s6; u_int32_t flags6; struct in6_addrlifetime lifetime; time_t t = time(NULL); int error; u_int32_t scopeid; memset(&null_sin, 0, sizeof(null_sin)); sin = (struct sockaddr_in6 *)info->rti_info[RTAX_IFA]; strncpy(ifr6.ifr_name, ifr.ifr_name, sizeof(ifr.ifr_name)); if ((s6 = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) { perror("ifconfig: socket"); return; } ifr6.ifr_addr = *sin; if (ioctl(s6, SIOCGIFAFLAG_IN6, &ifr6) < 0) { perror("ifconfig: ioctl(SIOCGIFAFLAG_IN6)"); close(s6); return; } flags6 = ifr6.ifr_ifru.ifru_flags6; memset(&lifetime, 0, sizeof(lifetime)); ifr6.ifr_addr = *sin; if (ioctl(s6, SIOCGIFALIFETIME_IN6, &ifr6) < 0) { perror("ifconfig: ioctl(SIOCGIFALIFETIME_IN6)"); close(s6); return; } lifetime = ifr6.ifr_ifru.ifru_lifetime; close(s6); /* XXX: embedded link local addr check */ if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr) && *(u_short *)&sin->sin6_addr.s6_addr[2] != 0) { u_short index; index = *(u_short *)&sin->sin6_addr.s6_addr[2]; *(u_short *)&sin->sin6_addr.s6_addr[2] = 0; if (sin->sin6_scope_id == 0) sin->sin6_scope_id = ntohs(index); } scopeid = sin->sin6_scope_id; error = getnameinfo((struct sockaddr *)sin, sin->sin6_len, addr_buf, sizeof(addr_buf), NULL, 0, NI_NUMERICHOST|NI_WITHSCOPEID); if (error != 0) inet_ntop(AF_INET6, &sin->sin6_addr, addr_buf, sizeof(addr_buf)); printf("\tinet6 %s ", addr_buf); if (flags & IFF_POINTOPOINT) { /* note RTAX_BRD overlap with IFF_BROADCAST */ sin = (struct sockaddr_in6 *)info->rti_info[RTAX_BRD]; /* * some of the interfaces do not have valid destination * address. */ if (sin && sin->sin6_family == AF_INET6) { int error; /* XXX: embedded link local addr check */ if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr) && *(u_short *)&sin->sin6_addr.s6_addr[2] != 0) { u_short index; index = *(u_short *)&sin->sin6_addr.s6_addr[2]; *(u_short *)&sin->sin6_addr.s6_addr[2] = 0; if (sin->sin6_scope_id == 0) sin->sin6_scope_id = ntohs(index); } error = getnameinfo((struct sockaddr *)sin, sin->sin6_len, addr_buf, sizeof(addr_buf), NULL, 0, NI_NUMERICHOST|NI_WITHSCOPEID); if (error != 0) inet_ntop(AF_INET6, &sin->sin6_addr, addr_buf, sizeof(addr_buf)); printf("--> %s ", addr_buf); } } sin = (struct sockaddr_in6 *)info->rti_info[RTAX_NETMASK]; if (!sin) sin = &null_sin; printf("prefixlen %d ", prefix(&sin->sin6_addr, sizeof(struct in6_addr))); if (flags6 & IN6_IFF_ANYCAST) printf("anycast "); if (flags6 & IN6_IFF_TENTATIVE) printf("tentative "); if (flags6 & IN6_IFF_DUPLICATED) printf("duplicated "); if (flags6 & IN6_IFF_DETACHED) printf("detached "); if (flags6 & IN6_IFF_DEPRECATED) printf("deprecated "); if (scopeid) printf("scopeid 0x%x ", scopeid); if (ip6lifetime && (lifetime.ia6t_preferred || lifetime.ia6t_expire)) { printf("pltime "); if (lifetime.ia6t_preferred) { printf("%s ", lifetime.ia6t_preferred < t ? "0" : sec2str(lifetime.ia6t_preferred - t)); } else printf("infty "); printf("vltime "); if (lifetime.ia6t_expire) { printf("%s ", lifetime.ia6t_expire < t ? "0" : sec2str(lifetime.ia6t_expire - t)); } else printf("infty "); } putchar('\n'); } #endif /*INET6*/ 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 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, MIN(hp->h_length, sizeof(sin->sin_addr))); else if ((np = getnetbyname(s)) != 0) sin->sin_addr = inet_makeaddr(np->n_net, INADDR_ANY); else errx(1, "%s: bad value", s); } #ifdef INET6 #define SIN6(x) ((struct sockaddr_in6 *) &(x)) struct sockaddr_in6 *sin6tab[] = { SIN6(in6_ridreq.ifr_addr), SIN6(in6_addreq.ifra_addr), SIN6(in6_addreq.ifra_prefixmask), SIN6(in6_addreq.ifra_dstaddr)}; void in6_getaddr(s, which) const char *s; int which; { register struct sockaddr_in6 *sin = sin6tab[which]; struct addrinfo hints, *res; int error = -1; newaddr &= 1; sin->sin6_len = sizeof(*sin); if (which != MASK) sin->sin6_family = AF_INET6; if (sin->sin6_family == AF_INET6) { bzero(&hints, sizeof(struct addrinfo)); hints.ai_family = AF_INET6; error = getaddrinfo(s, NULL, &hints, &res); } if (error != 0) { if (inet_pton(AF_INET6, s, &sin->sin6_addr) != 1) errx(1, "%s: bad value", s); } else bcopy(res->ai_addr, sin, res->ai_addrlen); } void in6_getprefix(plen, which) const char *plen; int which; { register struct sockaddr_in6 *sin = sin6tab[which]; register u_char *cp; int len = atoi(plen); if ((len < 0) || (len > 128)) errx(1, "%s: bad value", plen); sin->sin6_len = sizeof(*sin); if (which != MASK) sin->sin6_family = AF_INET6; if ((len == 0) || (len == 128)) { memset(&sin->sin6_addr, 0xff, sizeof(struct in6_addr)); return; } memset((void *)&sin->sin6_addr, 0x00, sizeof(sin->sin6_addr)); for (cp = (u_char *)&sin->sin6_addr; len > 7; len -= 8) *cp++ = 0xff; *cp = 0xff << (8 - len); } #endif /* * 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"); 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; } void ether_getaddr(addr, which) const char *addr; int which; { struct ether_addr *ea; struct sockaddr *sea = &ridreq.ifr_addr; ea = ether_aton(addr); if (ea == NULL) errx(1, "malformed ether address"); if (which == MASK) errx(1, "Ethernet does not use netmasks"); sea->sa_family = AF_LINK; sea->sa_len = ETHER_ADDR_LEN; bcopy(ea, sea->sa_data, ETHER_ADDR_LEN); } /* 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 INET6 int prefix(val, size) void *val; int size; { register u_char *name = (u_char *)val; register int byte, bit, plen = 0; for (byte = 0; byte < size; byte++, plen += 8) if (name[byte] != 0xff) break; if (byte == size) return (plen); for (bit = 7; bit != 0; bit--, plen++) if (!(name[byte] & (1 << bit))) break; for (; bit != 0; bit--) if (name[byte] & (1 << bit)) return(0); byte++; for (; byte < size; byte++) if (name[byte]) return(0); return (plen); } static char * sec2str(total) time_t total; { static char result[256]; int days, hours, mins, secs; int first = 1; char *p = result; if (0) { days = total / 3600 / 24; hours = (total / 3600) % 24; mins = (total / 60) % 60; secs = total % 60; if (days) { first = 0; p += sprintf(p, "%dd", days); } if (!first || hours) { first = 0; p += sprintf(p, "%dh", hours); } if (!first || mins) { first = 0; p += sprintf(p, "%dm", mins); } sprintf(p, "%ds", secs); } else sprintf(result, "%lu", (unsigned long)total); return(result); } #endif /*INET6*/ void ifmaybeload(name) char *name; { struct module_stat mstat; int fileid, modid; char ifkind[35], *cp, *dp; /* turn interface and unit into module name */ strcpy(ifkind, "if_"); for (cp = name, dp = ifkind + 3; (*cp != 0) && !isdigit(*cp); cp++, dp++) *dp = *cp; *dp = 0; /* scan files in kernel */ mstat.version = sizeof(struct module_stat); for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid)) { /* scan modules in file */ for (modid = kldfirstmod(fileid); modid > 0; modid = modfnext(modid)) { if (modstat(modid, &mstat) < 0) continue; /* strip bus name if present */ if ((cp = strchr(mstat.name, '/')) != NULL) { cp++; } else { cp = mstat.name; } /* already loaded? */ if (!strcmp(ifkind, cp)) return; } } /* not present, we should try to load it */ kldload(ifkind); }