/* $NetBSD: ifconfig.c,v 1.40 1997/10/01 02:19:43 enami Exp $ */ /* * Copyright (c) 1997 Jason R. Thorpe. * 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 for the NetBSD Project * by Jason R. Thorpe. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. */ /* * 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. */ #include #ifndef lint __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"; #else __RCSID("$NetBSD: ifconfig.c,v 1.40 1997/10/01 02:19:43 enami Exp $"); #endif #endif /* not lint */ #include #include #include #include #include #include #include #include #include #define NSIP #include #include #include #define EON #include #include #include #include #include #include #include #include #include #include struct ifreq ifr, ridreq; struct ifaliasreq addreq __attribute__((aligned(4))); struct iso_aliasreq iso_addreq; struct sockaddr_in netmask; struct netrange at_nr; /* AppleTalk net range */ char name[30]; int flags, metric, mtu, setaddr, setipdst, doalias; int clearaddr, s; int newaddr = -1; int nsellength = 1; int af; int dflag, mflag, lflag, uflag; int reset_if_flags; void notealias __P((char *, int)); void notrailers __P((char *, int)); void setifaddr __P((char *, int)); void setifdstaddr __P((char *, int)); void setifflags __P((char *, int)); void setifbroadaddr __P((char *, int)); void setifipdst __P((char *, int)); void setifmetric __P((char *, int)); void setifmtu __P((char *, int)); void setifnetmask __P((char *, int)); void setnsellength __P((char *, int)); void setsnpaoffset __P((char *, int)); void setatrange __P((char *, int)); void setatphase __P((char *, int)); void checkatrange __P ((struct sockaddr_at *)); void setmedia __P((char *, int)); void setmediaopt __P((char *, int)); void unsetmediaopt __P((char *, int)); void fixnsel __P((struct sockaddr_iso *)); int main __P((int, char *[])); #define NEXTARG 0xffffff struct cmd { char *c_name; int c_parameter; /* NEXTARG means next argv */ void (*c_func) __P((char *, int)); } cmds[] = { { "up", IFF_UP, setifflags } , { "down", -IFF_UP, setifflags }, { "trailers", -1, notrailers }, { "-trailers", 1, notrailers }, { "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 }, { "metric", NEXTARG, setifmetric }, { "mtu", NEXTARG, setifmtu }, { "broadcast", NEXTARG, setifbroadaddr }, { "ipdst", NEXTARG, setifipdst }, #ifndef INET_ONLY { "range", NEXTARG, setatrange }, { "phase", NEXTARG, setatphase }, { "snpaoffset", NEXTARG, setsnpaoffset }, { "nsellength", NEXTARG, setnsellength }, #endif /* INET_ONLY */ { "link0", IFF_LINK0, setifflags } , { "-link0", -IFF_LINK0, setifflags } , { "link1", IFF_LINK1, setifflags } , { "-link1", -IFF_LINK1, setifflags } , { "link2", IFF_LINK2, setifflags } , { "-link2", -IFF_LINK2, setifflags } , { "media", NEXTARG, setmedia }, { "mediaopt", NEXTARG, setmediaopt }, { "-mediaopt", NEXTARG, unsetmediaopt }, { 0, 0, setifaddr }, { 0, 0, setifdstaddr }, }; void adjust_nsellength __P((void)); int getinfo __P((struct ifreq *)); void getsock __P((int)); void printall __P((void)); void printb __P((char *, unsigned short, char *)); void status __P((const u_int8_t *, int)); void usage __P((void)); void domediaopt __P((char *, int)); int get_media_subtype __P((int, char *)); int get_media_options __P((int, char *)); int lookup_media_word __P((struct ifmedia_description *, char *)); void print_media_word __P((int)); /* * XNS support liberally adapted from code written at the University of * Maryland principally by James O'Toole and Chris Torek. */ void in_status __P((int)); void in_getaddr __P((char *, int)); void at_status __P((int)); void at_getaddr __P((char *, int)); void xns_status __P((int)); void xns_getaddr __P((char *, int)); void iso_status __P((int)); void iso_getaddr __P((char *, int)); /* Known address families */ struct afswtch { char *af_name; short af_af; void (*af_status) __P((int)); void (*af_getaddr) __P((char *, int)); 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, SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(addreq) }, #ifndef INET_ONLY /* small version, for boot media */ { "atalk", AF_APPLETALK, at_status, at_getaddr, SIOCDIFADDR, SIOCAIFADDR, C(addreq), C(addreq) }, { "ns", AF_NS, xns_status, xns_getaddr, SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(addreq) }, { "iso", AF_ISO, iso_status, iso_getaddr, SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(iso_addreq) }, #endif /* INET_ONLY */ { 0, 0, 0, 0 } }; struct afswtch *afp; /*the address family being set or asked about*/ struct afswtch *lookup_af __P((const char *)); int main(argc, argv) int argc; char *argv[]; { int ch, aflag; /* Parse command-line options */ aflag = mflag = 0; while ((ch = getopt(argc, argv, "adlmu")) != -1) { switch (ch) { case 'a': aflag = 1; break; case 'd': dflag = 1; break; case 'l': lflag = 1; break; case 'm': mflag = 1; break; case 'u': uflag = 1; break; default: usage(); /* NOTREACHED */ } } argc -= optind; argv += optind; /* * -l means "list all interfaces", and is mutally exclusive with * all other flags/commands. * * -a means "print status of all interfaces". */ if (lflag && (aflag || mflag || argc)) usage(); if (aflag || lflag) { if (argc > 1) usage(); else if (argc == 1) { afp = lookup_af(argv[0]); if (afp == NULL) usage(); } if (afp) af = ifr.ifr_addr.sa_family = afp->af_af; else af = ifr.ifr_addr.sa_family = afs[0].af_af; printall(); exit(0); } /* Make sure there's an interface name. */ if (argc < 1) usage(); (void) strncpy(name, argv[0], sizeof(name)); argc--; argv++; /* Check for address family. */ afp = NULL; if (argc > 0) { afp = lookup_af(argv[0]); if (afp != NULL) { argv++; argc--; } } if (afp == NULL) afp = afs; af = ifr.ifr_addr.sa_family = afp->af_af; /* Get information about the interface. */ (void) strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); if (getinfo(&ifr) < 0) exit(1); /* No more arguments means interface status. */ if (argc == 0) { status(NULL, 0); exit(0); } /* Process commands. */ while (argc > 0) { struct cmd *p; for (p = cmds; p->c_name; p++) if (strcmp(argv[0], 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 (argc < 2) errx(1, "'%s' requires argument", p->c_name); (*p->c_func)(argv[1], 0); argc--, argv++; } else (*p->c_func)(argv[0], p->c_parameter); } argc--, argv++; } #ifndef INET_ONLY if (af == AF_ISO) adjust_nsellength(); if (af == AF_APPLETALK) checkatrange((struct sockaddr_at *) &addreq.ifra_addr); if (setipdst && af==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) warn("encapsulation routing"); } #endif /* INET_ONLY */ if (clearaddr) { int ret; (void) 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 warn("SIOCDIFADDR"); } } if (newaddr > 0) { (void) strncpy(afp->af_addreq, name, sizeof ifr.ifr_name); if (ioctl(s, afp->af_aifaddr, afp->af_addreq) < 0) warn("SIOCAIFADDR"); } if (reset_if_flags && ioctl(s, SIOCSIFFLAGS, (caddr_t)&ifr) < 0) err(1, "SIOCSIFFLAGS"); exit(0); } struct afswtch * lookup_af(cp) const char *cp; { struct afswtch *a; for (a = afs; a->af_name != NULL; a++) if (strcmp(a->af_name, cp) == 0) return (a); return (NULL); } void getsock(naf) int naf; { static int oaf = -1; if (oaf == naf) return; if (oaf != -1) close(s); s = socket(naf, SOCK_DGRAM, 0); if (s < 0) oaf = -1; else oaf = naf; } int getinfo(ifr) struct ifreq *ifr; { getsock(af); if (s < 0) err(1, "socket"); if (ioctl(s, SIOCGIFFLAGS, (caddr_t)ifr) < 0) { warn("SIOCGIFFLAGS %s", ifr->ifr_name); return (-1); } flags = ifr->ifr_flags; if (ioctl(s, SIOCGIFMETRIC, (caddr_t)ifr) < 0) { warn("SIOCGIFMETRIC %s", ifr->ifr_name); metric = 0; } else metric = ifr->ifr_metric; if (ioctl(s, SIOCGIFMTU, (caddr_t)ifr) < 0) mtu = 0; else mtu = ifr->ifr_mtu; return (0); } void printall() { char inbuf[8192]; const struct sockaddr_dl *sdl = NULL; struct ifconf ifc; struct ifreq ifreq, *ifr; int i, idx; ifc.ifc_len = sizeof(inbuf); ifc.ifc_buf = inbuf; getsock(af); if (s < 0) err(1, "socket"); if (ioctl(s, SIOCGIFCONF, &ifc) < 0) err(1, "SIOCGIFCONF"); ifr = ifc.ifc_req; ifreq.ifr_name[0] = '\0'; for (i = 0, idx = 0; i < ifc.ifc_len; ) { ifr = (struct ifreq *)((caddr_t)ifc.ifc_req + i); i += sizeof(ifr->ifr_name) + (ifr->ifr_addr.sa_len > sizeof(struct sockaddr) ? ifr->ifr_addr.sa_len : sizeof(struct sockaddr)); if (ifr->ifr_addr.sa_family == AF_LINK) sdl = (const struct sockaddr_dl *) &ifr->ifr_addr; if (!strncmp(ifreq.ifr_name, ifr->ifr_name, sizeof(ifr->ifr_name))) continue; (void) strncpy(name, ifr->ifr_name, sizeof(ifr->ifr_name)); ifreq = *ifr; if (getinfo(&ifreq) < 0) continue; if (dflag && (flags & IFF_UP) != 0) continue; if (uflag && (flags & IFF_UP) == 0) continue; idx++; /* * Are we just listing the interfaces? */ if (lflag) { if (idx > 1) putchar(' '); fputs(name, stdout); continue; } if (sdl == NULL) { status(NULL, 0); } else { status(LLADDR(sdl), sdl->sdl_alen); sdl = NULL; } } if (lflag) putchar('\n'); } #define RIDADDR 0 #define ADDR 1 #define MASK 2 #define DSTADDR 3 /*ARGSUSED*/ void setifaddr(addr, param) char *addr; int param; { /* * 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 (newaddr == -1) newaddr = 1; if (doalias == 0) clearaddr = 1; (*afp->af_getaddr)(addr, (doalias >= 0 ? ADDR : RIDADDR)); } void setifnetmask(addr, d) char *addr; int d; { (*afp->af_getaddr)(addr, MASK); } void setifbroadaddr(addr, d) char *addr; int d; { (*afp->af_getaddr)(addr, DSTADDR); } void setifipdst(addr, d) char *addr; int d; { in_getaddr(addr, DSTADDR); setipdst++; clearaddr = 0; newaddr = 0; } #define rqtosa(x) (&(((struct ifreq *)(afp->x))->ifr_addr)) /*ARGSUSED*/ void notealias(addr, param) char *addr; int param; { if (setaddr && doalias == 0 && param < 0) (void) memcpy(rqtosa(af_ridreq), rqtosa(af_addreq), rqtosa(af_addreq)->sa_len); doalias = param; if (param < 0) { clearaddr = 1; newaddr = 0; } else clearaddr = 0; } /*ARGSUSED*/ void notrailers(vname, value) char *vname; int value; { puts("Note: trailers are no longer sent, but always received"); } /*ARGSUSED*/ void setifdstaddr(addr, param) char *addr; int param; { (*afp->af_getaddr)(addr, DSTADDR); } void setifflags(vname, value) char *vname; int value; { if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&ifr) < 0) err(1, "SIOCGIFFLAGS"); (void) 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) err(1, "SIOCSIFFLAGS"); reset_if_flags = 1; } void setifmetric(val, d) char *val; int d; { (void) strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name)); ifr.ifr_metric = atoi(val); if (ioctl(s, SIOCSIFMETRIC, (caddr_t)&ifr) < 0) warn("SIOCSIFMETRIC"); } void setifmtu(val, d) char *val; int d; { (void)strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); ifr.ifr_mtu = atoi(val); if (ioctl(s, SIOCSIFMTU, (caddr_t)&ifr) < 0) warn("SIOCSIFMTU"); } void setmedia(val, d) char *val; int d; { struct ifmediareq ifmr; int first_type, subtype; (void) memset(&ifmr, 0, sizeof(ifmr)); (void) strncpy(ifmr.ifm_name, name, sizeof(ifmr.ifm_name)); ifmr.ifm_count = 1; ifmr.ifm_ulist = &first_type; if (ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmr) < 0) { /* * If we get E2BIG, the kernel is telling us * that there are more, so we can ignore it. */ if (errno != E2BIG) err(1, "SIOCGIFMEDIA"); } if (ifmr.ifm_count == 0) errx(1, "%s: no media types?", name); /* * We are primarily concerned with the top-level type. * However, "current" may be only IFM_NONE, so we just look * for the top-level type in the first "supported type" * entry. * * (I'm assuming that all supported media types for a given * interface will be the same top-level type..) */ subtype = get_media_subtype(IFM_TYPE(first_type), val); strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); ifr.ifr_media = (ifmr.ifm_current & ~(IFM_NMASK|IFM_TMASK)) | IFM_TYPE(first_type) | subtype; if (ioctl(s, SIOCSIFMEDIA, (caddr_t)&ifr) < 0) err(1, "SIOCSIFMEDIA"); } void setmediaopt(val, d) char *val; int d; { domediaopt(val, 0); } void unsetmediaopt(val, d) int d; char *val; { domediaopt(val, 1); } void domediaopt(val, clear) char *val; int clear; { struct ifmediareq ifmr; int *mwords, options; (void) memset(&ifmr, 0, sizeof(ifmr)); (void) strncpy(ifmr.ifm_name, name, sizeof(ifmr.ifm_name)); /* * We must go through the motions of reading all * supported media because we need to know both * the current media type and the top-level type. */ if (ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmr) < 0) err(1, "SIOCGIFMEDIA"); if (ifmr.ifm_count == 0) errx(1, "%s: no media types?", name); mwords = (int *)malloc(ifmr.ifm_count * sizeof(int)); if (mwords == NULL) err(1, "malloc"); ifmr.ifm_ulist = mwords; if (ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmr) < 0) err(1, "SIOCGIFMEDIA"); options = get_media_options(IFM_TYPE(mwords[0]), val); free(mwords); strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); ifr.ifr_media = ifmr.ifm_current; if (clear) ifr.ifr_media &= ~options; else ifr.ifr_media |= options; if (ioctl(s, SIOCSIFMEDIA, (caddr_t)&ifr) < 0) err(1, "SIOCSIFMEDIA"); } /********************************************************************** * A good chunk of this is duplicated from sys/net/ifmedia.c **********************************************************************/ struct ifmedia_description ifm_type_descriptions[] = IFM_TYPE_DESCRIPTIONS; struct ifmedia_description ifm_subtype_ethernet_descriptions[] = IFM_SUBTYPE_ETHERNET_DESCRIPTIONS; struct ifmedia_description ifm_subtype_ethernet_aliases[] = IFM_SUBTYPE_ETHERNET_ALIASES; struct ifmedia_description ifm_subtype_ethernet_option_descriptions[] = IFM_SUBTYPE_ETHERNET_OPTION_DESCRIPTIONS; struct ifmedia_description ifm_subtype_tokenring_descriptions[] = IFM_SUBTYPE_TOKENRING_DESCRIPTIONS; struct ifmedia_description ifm_subtype_tokenring_aliases[] = IFM_SUBTYPE_TOKENRING_ALIASES; struct ifmedia_description ifm_subtype_tokenring_option_descriptions[] = IFM_SUBTYPE_TOKENRING_OPTION_DESCRIPTIONS; struct ifmedia_description ifm_subtype_fddi_descriptions[] = IFM_SUBTYPE_FDDI_DESCRIPTIONS; struct ifmedia_description ifm_subtype_fddi_aliases[] = IFM_SUBTYPE_FDDI_ALIASES; struct ifmedia_description ifm_subtype_fddi_option_descriptions[] = IFM_SUBTYPE_FDDI_OPTION_DESCRIPTIONS; struct ifmedia_description ifm_subtype_shared_descriptions[] = IFM_SUBTYPE_SHARED_DESCRIPTIONS; struct ifmedia_description ifm_subtype_shared_aliases[] = IFM_SUBTYPE_SHARED_ALIASES; struct ifmedia_description ifm_shared_option_descriptions[] = IFM_SHARED_OPTION_DESCRIPTIONS; struct ifmedia_type_to_subtype { struct { struct ifmedia_description *desc; int alias; } subtypes[5]; struct { struct ifmedia_description *desc; int alias; } options[3]; }; /* must be in the same order as IFM_TYPE_DESCRIPTIONS */ struct ifmedia_type_to_subtype ifmedia_types_to_subtypes[] = { { { { &ifm_subtype_shared_descriptions[0], 0 }, { &ifm_subtype_shared_aliases[0], 1 }, { &ifm_subtype_ethernet_descriptions[0], 0 }, { &ifm_subtype_ethernet_aliases[0], 1 }, { NULL, 0 }, }, { { &ifm_shared_option_descriptions[0], 0 }, { &ifm_subtype_ethernet_option_descriptions[0], 1 }, { NULL, 0 }, }, }, { { { &ifm_subtype_shared_descriptions[0], 0 }, { &ifm_subtype_shared_aliases[0], 1 }, { &ifm_subtype_tokenring_descriptions[0], 0 }, { &ifm_subtype_tokenring_aliases[0], 1 }, { NULL, 0 }, }, { { &ifm_shared_option_descriptions[0], 0 }, { &ifm_subtype_tokenring_option_descriptions[0], 1 }, { NULL, 0 }, }, }, { { { &ifm_subtype_shared_descriptions[0], 0 }, { &ifm_subtype_shared_aliases[0], 1 }, { &ifm_subtype_fddi_descriptions[0], 0 }, { &ifm_subtype_fddi_aliases[0], 1 }, { NULL, 0 }, }, { { &ifm_shared_option_descriptions[0], 0 }, { &ifm_subtype_fddi_option_descriptions[0], 1 }, { NULL, 0 }, }, }, }; int get_media_subtype(type, val) int type; char *val; { struct ifmedia_description *desc; struct ifmedia_type_to_subtype *ttos; int rval, i; /* Find the top-level interface type. */ for (desc = ifm_type_descriptions, ttos = ifmedia_types_to_subtypes; desc->ifmt_string != NULL; desc++, ttos++) if (type == desc->ifmt_word) break; if (desc->ifmt_string == NULL) errx(1, "unknown media type 0x%x", type); for (i = 0; ttos->subtypes[i].desc != NULL; i++) { rval = lookup_media_word(ttos->subtypes[i].desc, val); if (rval != -1) return (rval); } errx(1, "unknown media subtype: %s", val); /* NOTREACHED */ } int get_media_options(type, val) int type; char *val; { struct ifmedia_description *desc; struct ifmedia_type_to_subtype *ttos; char *optlist; int option = 0, i, rval = 0; /* We muck with the string, so copy it. */ optlist = strdup(val); if (optlist == NULL) err(1, "strdup"); val = optlist; /* Find the top-level interface type. */ for (desc = ifm_type_descriptions, ttos = ifmedia_types_to_subtypes; desc->ifmt_string != NULL; desc++, ttos++) if (type == desc->ifmt_word) break; if (desc->ifmt_string == NULL) errx(1, "unknown media type 0x%x", type); /* * Look up the options in the user-provided comma-separated * list. */ for (; (val = strtok(val, ",")) != NULL; val = NULL) { for (i = 0; ttos->options[i].desc != NULL; i++) { option = lookup_media_word(ttos->options[i].desc, val); if (option != -1) break; } if (option == 0) errx(1, "unknown option: %s", val); rval |= option; } free(optlist); return (rval); } int lookup_media_word(desc, val) struct ifmedia_description *desc; char *val; { for (; desc->ifmt_string != NULL; desc++) if (strcasecmp(desc->ifmt_string, val) == 0) return (desc->ifmt_word); return (-1); } void print_media_word(ifmw) int ifmw; { struct ifmedia_description *desc; struct ifmedia_type_to_subtype *ttos; int seen_option = 0, i; /* Find the top-level interface type. */ for (desc = ifm_type_descriptions, ttos = ifmedia_types_to_subtypes; desc->ifmt_string != NULL; desc++, ttos++) if (IFM_TYPE(ifmw) == desc->ifmt_word) break; if (desc->ifmt_string == NULL) { printf(""); return; } /* * Don't print the top-level type; it's not like we can * change it, or anything. */ /* Find subtype. */ for (i = 0; ttos->subtypes[i].desc != NULL; i++) { if (ttos->subtypes[i].alias) continue; for (desc = ttos->subtypes[i].desc; desc->ifmt_string != NULL; desc++) { if (IFM_SUBTYPE(ifmw) == desc->ifmt_word) goto got_subtype; } } /* Falling to here means unknown subtype. */ printf(""); return; got_subtype: printf("%s", desc->ifmt_string); /* Find options. */ for (i = 0; ttos->options[i].desc != NULL; i++) { if (ttos->options[i].alias) continue; for (desc = ttos->options[i].desc; desc->ifmt_string != NULL; desc++) { if (ifmw & desc->ifmt_word) { if (seen_option == 0) printf(" <"); printf("%s%s", seen_option++ ? "," : "", desc->ifmt_string); } } } printf("%s", seen_option ? ">" : ""); } /********************************************************************** * ...until here. **********************************************************************/ #define IFFBITS \ "\020\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5POINTOPOINT\6NOTRAILERS\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(ap, alen) const u_int8_t *ap; int alen; { struct afswtch *p = afp; struct ifmediareq ifmr; int *media_list, i; printf("%s: ", name); printb("flags", flags, IFFBITS); if (metric) printf(" metric %d", metric); if (mtu) printf(" mtu %d", mtu); putchar('\n'); if (ap && alen > 0) { printf("\taddress:"); for (i = 0; i < alen; i++, ap++) printf("%c%02x", i > 0 ? ':' : ' ', *ap); putchar('\n'); } (void) memset(&ifmr, 0, sizeof(ifmr)); (void) strncpy(ifmr.ifm_name, name, sizeof(ifmr.ifm_name)); if (ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmr) < 0) { /* * Interface doesn't support SIOC{G,S}IFMEDIA. */ goto proto_status; } if (ifmr.ifm_count == 0) { warnx("%s: no media types?", name); goto proto_status; } media_list = (int *)malloc(ifmr.ifm_count * sizeof(int)); if (media_list == NULL) err(1, "malloc"); ifmr.ifm_ulist = media_list; if (ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmr) < 0) err(1, "SIOCGIFMEDIA"); printf("\tmedia: "); print_media_word(ifmr.ifm_current); if (ifmr.ifm_active != ifmr.ifm_current) { putchar(' '); putchar('('); print_media_word(ifmr.ifm_active); putchar(')'); } if (ifmr.ifm_status & IFM_AVALID) { printf(" status: "); switch (IFM_TYPE(ifmr.ifm_active)) { case IFM_ETHER: if (ifmr.ifm_status & IFM_ACTIVE) printf("active"); else printf("no carrier"); break; case IFM_FDDI: case IFM_TOKEN: if (ifmr.ifm_status & IFM_ACTIVE) printf("inserted"); else printf("no ring"); break; } } putchar('\n'); if (mflag) { printf("\tsupported media:"); for (i = 0; i < ifmr.ifm_count; i++) { putchar(' '); print_media_word(media_list[i]); } putchar('\n'); } free(media_list); proto_status: if ((p = afp) != NULL) { (*p->af_status)(1); } else for (p = afs; p->af_name; p++) { ifr.ifr_addr.sa_family = p->af_af; (*p->af_status)(0); } } void in_status(force) int force; { struct sockaddr_in *sin; getsock(AF_INET); if (s < 0) { if (errno == EPROTONOSUPPORT) return; err(1, "socket"); } (void) memset(&ifr, 0, sizeof(ifr)); (void) strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); if (ioctl(s, SIOCGIFADDR, (caddr_t)&ifr) < 0) { if (errno == EADDRNOTAVAIL || errno == EAFNOSUPPORT) { if (!force) return; (void) memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr)); } else warn("SIOCGIFADDR"); } (void) strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name)); sin = (struct sockaddr_in *)&ifr.ifr_addr; printf("\tinet %s ", inet_ntoa(sin->sin_addr)); (void) strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name)); if (ioctl(s, SIOCGIFNETMASK, (caddr_t)&ifr) < 0) { if (errno != EADDRNOTAVAIL) warn("SIOCGIFNETMASK"); (void) memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr)); } else netmask.sin_addr = ((struct sockaddr_in *)&ifr.ifr_addr)->sin_addr; if (flags & IFF_POINTOPOINT) { if (ioctl(s, SIOCGIFDSTADDR, (caddr_t)&ifr) < 0) { if (errno == EADDRNOTAVAIL) (void) memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr)); else warn("SIOCGIFDSTADDR"); } (void) strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name)); sin = (struct sockaddr_in *)&ifr.ifr_dstaddr; printf("--> %s ", inet_ntoa(sin->sin_addr)); } printf("netmask 0x%x ", ntohl(netmask.sin_addr.s_addr)); if (flags & IFF_BROADCAST) { if (ioctl(s, SIOCGIFBRDADDR, (caddr_t)&ifr) < 0) { if (errno == EADDRNOTAVAIL) (void) memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr)); else warn("SIOCGIFBRDADDR"); } (void) strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name)); sin = (struct sockaddr_in *)&ifr.ifr_addr; if (sin->sin_addr.s_addr != 0) printf("broadcast %s", inet_ntoa(sin->sin_addr)); } putchar('\n'); } #ifndef INET_ONLY void at_status(force) int force; { struct sockaddr_at *sat, null_sat; struct netrange *nr; getsock(AF_APPLETALK); if (s < 0) { if (errno == EPROTONOSUPPORT) return; err(1, "socket"); } (void) memset(&ifr, 0, sizeof(ifr)); (void) strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); if (ioctl(s, SIOCGIFADDR, (caddr_t)&ifr) < 0) { if (errno == EADDRNOTAVAIL || errno == EAFNOSUPPORT) { if (!force) return; (void) memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr)); } else warn("SIOCGIFADDR"); } (void) strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name); sat = (struct sockaddr_at *)&ifr.ifr_addr; (void) memset(&null_sat, 0, sizeof(null_sat)); nr = (struct netrange *) &sat->sat_zero; 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) { if (ioctl(s, SIOCGIFDSTADDR, (caddr_t)&ifr) < 0) { if (errno == EADDRNOTAVAIL) (void) memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr)); else warn("SIOCGIFDSTADDR"); } (void) strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name)); sat = (struct sockaddr_at *)&ifr.ifr_dstaddr; 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 *)&ifr.ifr_broadaddr; if (sat) printf(" broadcast %d.%d", ntohs(sat->sat_addr.s_net), sat->sat_addr.s_node); } putchar('\n'); } void xns_status(force) int force; { struct sockaddr_ns *sns; getsock(AF_NS); if (s < 0) { if (errno == EPROTONOSUPPORT) return; err(1, "socket"); } (void) memset(&ifr, 0, sizeof(ifr)); (void) strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); if (ioctl(s, SIOCGIFADDR, (caddr_t)&ifr) < 0) { if (errno == EADDRNOTAVAIL || errno == EAFNOSUPPORT) { if (!force) return; memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr)); } else warn("SIOCGIFADDR"); } (void) strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name); sns = (struct sockaddr_ns *)&ifr.ifr_addr; printf("\tns %s ", ns_ntoa(sns->sns_addr)); if (flags & IFF_POINTOPOINT) { /* by W. Nesheim@Cornell */ if (ioctl(s, SIOCGIFDSTADDR, (caddr_t)&ifr) < 0) { if (errno == EADDRNOTAVAIL) memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr)); else warn("SIOCGIFDSTADDR"); } (void) strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name)); sns = (struct sockaddr_ns *)&ifr.ifr_dstaddr; printf("--> %s ", ns_ntoa(sns->sns_addr)); } putchar('\n'); } void iso_status(force) int force; { struct sockaddr_iso *siso; getsock(AF_ISO); if (s < 0) { if (errno == EPROTONOSUPPORT) return; err(1, "socket"); } (void) memset(&ifr, 0, sizeof(ifr)); (void) strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); if (ioctl(s, SIOCGIFADDR, (caddr_t)&ifr) < 0) { if (errno == EADDRNOTAVAIL || errno == EAFNOSUPPORT) { if (!force) return; (void) memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr)); } else warn("SIOCGIFADDR"); } (void) strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name); siso = (struct sockaddr_iso *)&ifr.ifr_addr; printf("\tiso %s ", iso_ntoa(&siso->siso_addr)); if (ioctl(s, SIOCGIFNETMASK, (caddr_t)&ifr) < 0) { if (errno == EADDRNOTAVAIL) memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr)); else warn("SIOCGIFNETMASK"); } else { printf(" netmask %s ", iso_ntoa(&siso->siso_addr)); } if (flags & IFF_POINTOPOINT) { if (ioctl(s, SIOCGIFDSTADDR, (caddr_t)&ifr) < 0) { if (errno == EADDRNOTAVAIL) memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr)); else warn("SIOCGIFDSTADDR"); } (void) strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name)); siso = (struct sockaddr_iso *)&ifr.ifr_addr; printf("--> %s ", iso_ntoa(&siso->siso_addr)); } putchar('\n'); } #endif /* INET_ONLY */ #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) char *s; int which; { 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) == 0) { if ((hp = gethostbyname(s)) != NULL) (void) memcpy(&sin->sin_addr, hp->h_addr, hp->h_length); else if ((np = getnetbyname(s)) != NULL) 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) char *s; char *bits; unsigned short v; { int i, any = 0; 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('>'); } } #ifndef INET_ONLY void at_getaddr(addr, which) 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 == 0 || net > 0xffff || node == 0 || node > 0xfe) errx(1, "%s: illegal address", addr); sat->sat_addr.s_net = htons(net); sat->sat_addr.s_node = node; } void setatrange(range, d) char *range; int d; { 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, d) char *phase; int d; { 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(sat) 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"); *((struct netrange *) &sat->sat_zero) = at_nr; } #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) 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) puts("Attempt to set XNS netmask will be ineffectual"); } #define SISO(x) ((struct sockaddr_iso *) &(x)) struct sockaddr_iso *sisotab[] = { SISO(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; int which; { struct sockaddr_iso *siso = sisotab[which]; 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 setsnpaoffset(val, d) char *val; int d; { iso_addreq.ifra_snpaoffset = atoi(val); } void setnsellength(val, d) char *val; int d; { 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) 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 /* INET_ONLY */ void usage() { fprintf(stderr, "usage: ifconfig [ -m ] interface\n%s%s%s%s%s%s%s%s%s%s%s", "\t[ af [ address [ dest_addr ] ] [ up ] [ down ] ", "[ netmask mask ] ]\n", "\t[ metric n ]\n", "\t[ mtu n ]\n", "\t[ arp | -arp ]\n", "\t[ media mtype ]\n", "\t[ mediaopt mopts ]\n", "\t[ -mediaopt mopts ]\n", "\t[ link0 | -link0 ] [ link1 | -link1 ] [ link2 | -link2 ]\n", " ifconfig -a [ -m ] [ -d ] [ -u ] [ af ]\n", " ifconfig -l [ -d ] [ -u ]\n"); exit(1); }