2 * Copyright (c) 1983, 1989, 1991, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * @(#) Copyright (c) 1983, 1989, 1991, 1993 The Regents of the University of California. All rights reserved.
34 * @(#)route.c 8.6 (Berkeley) 4/28/95
35 * $FreeBSD: src/sbin/route/route.c,v 1.40.2.11 2003/02/27 23:10:10 ru Exp $
36 * $DragonFly: src/sbin/route/route.c,v 1.2 2003/06/17 04:27:34 dillon Exp $
39 #include <sys/param.h>
41 #include <sys/socket.h>
42 #include <sys/ioctl.h>
43 #include <sys/sysctl.h>
44 #include <sys/types.h>
47 #include <net/route.h>
48 #include <net/if_dl.h>
49 #include <netinet/in.h>
50 #include <netinet/if_ether.h>
51 #include <netatalk/at.h>
55 #include <arpa/inet.h>
77 struct ortentry route;
80 struct sockaddr_in sin;
82 struct sockaddr_in6 sin6;
84 struct sockaddr_at sat;
86 struct sockaddr_ns sns;
88 struct sockaddr_dl sdl;
89 struct sockaddr_inarp sinarp;
90 struct sockaddr_storage ss; /* added to avoid memory overrun */
91 } so_dst, so_gate, so_mask, so_genmask, so_ifa, so_ifp;
93 typedef union sockunion *sup;
96 int forcehost, forcenet, doflush, nflag, af, qflag, tflag, keyword();
97 int iflag, verbose, aflen = sizeof (struct sockaddr_in);
98 int locking, lockrest, debugonly;
99 struct rt_metrics rt_metrics;
102 int atalk_aton __P((const char *, struct at_addr *));
103 char *atalk_ntoa __P((struct at_addr));
104 const char *routename(), *netname();
105 void flushroutes(), newroute(), monitor(), sockaddr(), sodump(), bprintf();
106 void print_getmsg(), print_rtmsg(), pmsg_common(), pmsg_addrs(), mask_addr();
108 static int inet6_makenetandmask __P((struct sockaddr_in6 *, char *));
110 int getaddr(), rtmsg(), x25_makemask();
112 extern char *iso_ntoa();
114 void usage __P((const char *)) __dead2;
121 warnx("bad keyword: %s", cp);
122 (void) fprintf(stderr,
123 "usage: route [-dnqtv] command [[modifiers] args]\n");
129 ((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long))
130 #define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len))
142 while ((ch = getopt(argc, argv, "nqdtv")) != -1)
169 s = open(_PATH_DEVNULL, O_WRONLY, 0);
171 s = socket(PF_ROUTE, SOCK_RAW, 0);
173 err(EX_OSERR, "socket");
175 switch (keyword(*argv)) {
183 newroute(argc, argv);
191 flushroutes(argc, argv);
200 * Purge all entries in the routing tables not
201 * associated with network interfaces.
204 flushroutes(argc, argv)
209 int mib[6], rlen, seqno;
210 char *buf, *next, *lim;
211 register struct rt_msghdr *rtm;
214 errx(EX_NOPERM, "must be root to alter routing table");
216 shutdown(s, 0); /* Don't want to read back our messages */
219 if (argc == 2 && **argv == '-')
220 switch (keyword(*argv + 1)) {
247 mib[2] = 0; /* protocol */
248 mib[3] = 0; /* wildcard address family */
249 mib[4] = NET_RT_DUMP;
250 mib[5] = 0; /* no flags */
251 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0)
252 err(EX_OSERR, "route-sysctl-estimate");
253 if ((buf = malloc(needed)) == NULL)
254 errx(EX_OSERR, "malloc failed");
255 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0)
256 err(EX_OSERR, "route-sysctl-get");
259 (void) printf("Examining routing table from sysctl\n");
261 for (next = buf; next < lim; next += rtm->rtm_msglen) {
262 rtm = (struct rt_msghdr *)next;
264 print_rtmsg(rtm, rtm->rtm_msglen);
265 if ((rtm->rtm_flags & RTF_GATEWAY) == 0)
268 struct sockaddr *sa = (struct sockaddr *)(rtm + 1);
270 if (sa->sa_family != af)
275 rtm->rtm_type = RTM_DELETE;
276 rtm->rtm_seq = seqno;
277 rlen = write(s, next, rtm->rtm_msglen);
278 if (rlen < (int)rtm->rtm_msglen) {
279 warn("write to routing socket");
280 (void) printf("got only %d for rlen\n", rlen);
287 print_rtmsg(rtm, rlen);
289 struct sockaddr *sa = (struct sockaddr *)(rtm + 1);
290 (void) printf("%-20.20s ", rtm->rtm_flags & RTF_HOST ?
291 routename(sa) : netname(sa));
292 sa = (struct sockaddr *)(ROUNDUP(sa->sa_len) + (char *)sa);
293 (void) printf("%-20.20s ", routename(sa));
294 (void) printf("done\n");
304 static char line[MAXHOSTNAMELEN + 1];
306 static char domain[MAXHOSTNAMELEN + 1];
307 static int first = 1;
314 if (gethostname(domain, MAXHOSTNAMELEN) == 0 &&
315 (cp = strchr(domain, '.'))) {
316 domain[MAXHOSTNAMELEN] = '\0';
317 (void) strcpy(domain, cp + 1);
323 strcpy(line, "default");
324 else switch (sa->sa_family) {
328 in = ((struct sockaddr_in *)sa)->sin_addr;
331 if (in.s_addr == INADDR_ANY || sa->sa_len < 4)
333 if (cp == 0 && !nflag) {
334 hp = gethostbyaddr((char *)&in, sizeof (struct in_addr),
337 if ((cp = strchr(hp->h_name, '.')) &&
338 !strcmp(cp + 1, domain))
344 strncpy(line, cp, sizeof(line) - 1);
345 line[sizeof(line) - 1] = '\0';
347 (void) sprintf(line, "%s", inet_ntoa(in));
354 struct sockaddr_in6 sin6; /* use static var for safety */
356 #ifdef NI_WITHSCOPEID
357 niflags = NI_WITHSCOPEID;
360 memset(&sin6, 0, sizeof(sin6));
361 memcpy(&sin6, sa, sa->sa_len);
362 sin6.sin6_len = sizeof(struct sockaddr_in6);
363 sin6.sin6_family = AF_INET6;
365 if (sa->sa_len == sizeof(struct sockaddr_in6) &&
366 (IN6_IS_ADDR_LINKLOCAL(&sin6.sin6_addr) ||
367 IN6_IS_ADDR_MC_LINKLOCAL(&sin6.sin6_addr)) &&
368 sin6.sin6_scope_id == 0) {
370 ntohs(*(u_int16_t *)&sin6.sin6_addr.s6_addr[2]);
371 sin6.sin6_addr.s6_addr[2] = 0;
372 sin6.sin6_addr.s6_addr[3] = 0;
376 niflags |= NI_NUMERICHOST;
377 if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len,
378 line, sizeof(line), NULL, 0, niflags) != 0)
379 strncpy(line, "invalid", sizeof(line));
386 (void) snprintf(line, sizeof(line), "atalk %s",
387 atalk_ntoa(((struct sockaddr_at *)sa)->sat_addr));
392 return (ns_print((struct sockaddr_ns *)sa));
396 return (link_ntoa((struct sockaddr_dl *)sa));
399 { u_short *s = (u_short *)sa;
400 u_short *slim = s + ((sa->sa_len + 1) >> 1);
401 char *cp = line + sprintf(line, "(%d)", sa->sa_family);
402 char *cpe = line + sizeof(line);
404 while (++s < slim && cp < cpe) /* start with sa->sa_data */
405 cp += snprintf(cp, cpe - cp, " %x", *s);
413 * Return the name of the network whose address is given.
414 * The address is assumed to be that of a net or subnet, not a host.
421 static char line[MAXHOSTNAMELEN + 1];
422 struct netent *np = 0;
430 switch (sa->sa_family) {
434 in = ((struct sockaddr_in *)sa)->sin_addr;
436 i = in.s_addr = ntohl(in.s_addr);
441 mask = IN_CLASSA_NET;
443 } else if (IN_CLASSB(i)) {
444 mask = IN_CLASSB_NET;
447 mask = IN_CLASSC_NET;
451 * If there are more bits than the standard mask
452 * would suggest, subnets must be in use.
453 * Guess at the subnet mask, assuming reasonable
454 * width subnet fields.
456 while (in.s_addr &~ mask)
457 mask = (long)mask >> subnetshift;
458 net = in.s_addr & mask;
459 while ((mask & 1) == 0)
460 mask >>= 1, net >>= 1;
461 np = getnetbyaddr(net, AF_INET);
465 #define C(x) (unsigned)((x) & 0xff)
467 strncpy(line, cp, sizeof(line));
468 else if ((in.s_addr & 0xffffff) == 0)
469 (void) sprintf(line, "%u", C(in.s_addr >> 24));
470 else if ((in.s_addr & 0xffff) == 0)
471 (void) sprintf(line, "%u.%u", C(in.s_addr >> 24),
473 else if ((in.s_addr & 0xff) == 0)
474 (void) sprintf(line, "%u.%u.%u", C(in.s_addr >> 24),
475 C(in.s_addr >> 16), C(in.s_addr >> 8));
477 (void) sprintf(line, "%u.%u.%u.%u", C(in.s_addr >> 24),
478 C(in.s_addr >> 16), C(in.s_addr >> 8),
487 struct sockaddr_in6 sin6; /* use static var for safety */
489 #ifdef NI_WITHSCOPEID
490 niflags = NI_WITHSCOPEID;
493 memset(&sin6, 0, sizeof(sin6));
494 memcpy(&sin6, sa, sa->sa_len);
495 sin6.sin6_len = sizeof(struct sockaddr_in6);
496 sin6.sin6_family = AF_INET6;
498 if (sa->sa_len == sizeof(struct sockaddr_in6) &&
499 (IN6_IS_ADDR_LINKLOCAL(&sin6.sin6_addr) ||
500 IN6_IS_ADDR_MC_LINKLOCAL(&sin6.sin6_addr)) &&
501 sin6.sin6_scope_id == 0) {
503 ntohs(*(u_int16_t *)&sin6.sin6_addr.s6_addr[2]);
504 sin6.sin6_addr.s6_addr[2] = 0;
505 sin6.sin6_addr.s6_addr[3] = 0;
509 niflags |= NI_NUMERICHOST;
510 if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len,
511 line, sizeof(line), NULL, 0, niflags) != 0)
512 strncpy(line, "invalid", sizeof(line));
519 (void) snprintf(line, sizeof(line), "atalk %s",
520 atalk_ntoa(((struct sockaddr_at *)sa)->sat_addr));
525 return (ns_print((struct sockaddr_ns *)sa));
530 return (link_ntoa((struct sockaddr_dl *)sa));
534 { u_short *s = (u_short *)sa->sa_data;
535 u_short *slim = s + ((sa->sa_len + 1)>>1);
536 char *cp = line + sprintf(line, "af %d:", sa->sa_family);
537 char *cpe = line + sizeof(line);
539 while (s < slim && cp < cpe)
540 cp += snprintf(cp, cpe - cp, " %x", *s++);
548 set_metric(value, key)
553 u_long noval, *valp = &noval;
556 #define caseof(x, y, z) case x: valp = &rt_metrics.z; flag = y; break
557 caseof(K_MTU, RTV_MTU, rmx_mtu);
558 caseof(K_HOPCOUNT, RTV_HOPCOUNT, rmx_hopcount);
559 caseof(K_EXPIRE, RTV_EXPIRE, rmx_expire);
560 caseof(K_RECVPIPE, RTV_RPIPE, rmx_recvpipe);
561 caseof(K_SENDPIPE, RTV_SPIPE, rmx_sendpipe);
562 caseof(K_SSTHRESH, RTV_SSTHRESH, rmx_ssthresh);
563 caseof(K_RTT, RTV_RTT, rmx_rtt);
564 caseof(K_RTTVAR, RTV_RTTVAR, rmx_rttvar);
567 if (lockrest || locking)
568 rt_metrics.rmx_locks |= flag;
577 register char **argv;
579 char *cmd, *dest = "", *gateway = "", *err;
580 int ishost = 0, proxy = 0, ret, attempts, oerrno, flags = RTF_STATIC;
582 struct hostent *hp = 0;
585 errx(EX_NOPERM, "must be root to alter routing table");
589 shutdown(s, 0); /* Don't want to read back our messages */
591 if (**(++argv)== '-') {
592 switch (key = keyword(1 + *argv)) {
595 aflen = sizeof(struct sockaddr_dl);
599 aflen = sizeof(struct sockaddr_in);
604 aflen = sizeof(struct sockaddr_in6);
609 aflen = sizeof(struct sockaddr_at);
613 aflen = sizeof(union sockunion);
618 aflen = sizeof(struct sockaddr_ns);
626 flags &= ~RTF_STATIC;
644 flags |= RTF_BLACKHOLE;
656 flags |= RTF_CLONING;
659 flags |= RTF_XRESOLVE;
667 (void) getaddr(RTA_IFA, *++argv, 0);
672 (void) getaddr(RTA_IFP, *++argv, 0);
677 (void) getaddr(RTA_GENMASK, *++argv, 0);
682 (void) getaddr(RTA_GATEWAY, *++argv, 0);
687 ishost = getaddr(RTA_DST, *++argv, &hp);
693 (void) getaddr(RTA_NETMASK, *++argv, 0);
701 if (prefixlen(*++argv) == -1) {
719 set_metric(*++argv, key);
725 if ((rtm_addrs & RTA_DST) == 0) {
727 ishost = getaddr(RTA_DST, *argv, &hp);
728 } else if ((rtm_addrs & RTA_GATEWAY) == 0) {
730 (void) getaddr(RTA_GATEWAY, *argv, &hp);
732 (void) getaddr(RTA_NETMASK, *argv, 0);
740 if (af == AF_INET6) {
741 rtm_addrs &= ~RTA_NETMASK;
742 memset((void *)&so_mask, 0, sizeof(so_mask));
752 flags |= RTF_GATEWAY;
754 so_dst.sinarp.sin_other = SIN_PROXY;
755 flags |= RTF_ANNOUNCE;
757 for (attempts = 1; ; attempts++) {
759 if ((ret = rtmsg(*cmd, flags)) == 0)
761 if (errno != ENETUNREACH && errno != ESRCH)
763 if (af == AF_INET && *gateway && hp && hp->h_addr_list[1]) {
765 memmove(&so_gate.sin.sin_addr, hp->h_addr_list[0],
766 MIN(hp->h_length, sizeof(so_gate.sin.sin_addr)));
774 (void) printf("%s %s %s", cmd, ishost? "host" : "net", dest);
776 (void) printf(": gateway %s", gateway);
777 if (attempts > 1 && ret == 0 && af == AF_INET)
778 (void) printf(" (%s)",
779 inet_ntoa(((struct sockaddr_in *)&route.rt_gateway)->sin_addr));
786 err = "not in table";
789 err = "entry in use";
792 err = "routing table overflow";
794 case EDQUOT: /* handle recursion avoidance in rt_setgate() */
795 err = "gateway uses the same route";
798 err = strerror(oerrno);
801 (void) printf(": %s\n", err);
808 inet_makenetandmask(net, sin, bits)
810 register struct sockaddr_in *sin;
812 u_long addr, mask = 0;
815 rtm_addrs |= RTA_NETMASK;
818 else if (net < 128) {
819 addr = net << IN_CLASSA_NSHIFT;
820 mask = IN_CLASSA_NET;
821 } else if (net < 65536) {
822 addr = net << IN_CLASSB_NSHIFT;
823 mask = IN_CLASSB_NET;
824 } else if (net < 16777216L) {
825 addr = net << IN_CLASSC_NSHIFT;
826 mask = IN_CLASSC_NET;
829 if ((addr & IN_CLASSA_HOST) == 0)
830 mask = IN_CLASSA_NET;
831 else if ((addr & IN_CLASSB_HOST) == 0)
832 mask = IN_CLASSB_NET;
833 else if ((addr & IN_CLASSC_HOST) == 0)
834 mask = IN_CLASSC_NET;
839 mask = 0xffffffff << (32 - bits);
840 sin->sin_addr.s_addr = htonl(addr);
842 sin->sin_addr.s_addr = htonl(mask);
845 cp = (char *)(&sin->sin_addr + 1);
846 while (*--cp == 0 && cp > (char *)sin)
848 sin->sin_len = 1 + cp - (char *)sin;
853 * XXX the function may need more improvement...
856 inet6_makenetandmask(sin6, plen)
857 struct sockaddr_in6 *sin6;
863 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr) &&
864 sin6->sin6_scope_id == 0) {
866 } else if ((sin6->sin6_addr.s6_addr[0] & 0xe0) == 0x20) {
867 /* aggregatable global unicast - RFC2374 */
868 memset(&in6, 0, sizeof(in6));
869 if (!memcmp(&sin6->sin6_addr.s6_addr[8],
875 if (!plen || strcmp(plen, "128") == 0)
877 rtm_addrs |= RTA_NETMASK;
878 (void)prefixlen(plen);
884 * Interpret an argument as a network address of some kind,
885 * returning 1 if a host address, 0 if a network address.
888 getaddr(which, s, hpp)
891 struct hostent **hpp;
898 int afamily; /* local copy of af so we can change it */
902 aflen = sizeof(struct sockaddr_in);
913 struct ifaddrs *ifap, *ifa;
914 struct sockaddr_dl *sdl = NULL;
916 if (getifaddrs(&ifap))
917 err(1, "getifaddrs");
919 for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
920 if (ifa->ifa_addr->sa_family != AF_LINK)
923 if (strcmp(s, ifa->ifa_name))
926 sdl = (struct sockaddr_dl *)ifa->ifa_addr;
928 /* If we found it, then use it */
931 * Copy is safe since we have a
932 * sockaddr_storage member in sockunion{}.
933 * Note that we need to copy before calling
936 memcpy(&su->sdl, sdl, sdl->sdl_len);
957 usage("internal error");
960 su->sa.sa_len = aflen;
961 su->sa.sa_family = afamily; /* cases that don't want it have left already */
962 if (strcmp(s, "default") == 0) {
964 * Default is net 0.0.0.0/0
969 /* bzero(su, sizeof(*su)); *//* for readability */
970 (void) getaddr(RTA_NETMASK, s, 0);
974 /* bzero(su, sizeof(*su)); *//* for readability */
982 struct addrinfo hints, *res;
985 if (which == RTA_DST && (q = strchr(s, '/')) != NULL)
987 memset(&hints, 0, sizeof(hints));
988 hints.ai_family = afamily; /*AF_INET6*/
989 hints.ai_flags = AI_NUMERICHOST;
990 hints.ai_socktype = SOCK_DGRAM; /*dummy*/
991 if (getaddrinfo(s, "0", &hints, &res) != 0 ||
992 res->ai_family != AF_INET6 ||
993 res->ai_addrlen != sizeof(su->sin6)) {
994 (void) fprintf(stderr, "%s: bad value\n", s);
997 memcpy(&su->sin6, res->ai_addr, sizeof(su->sin6));
999 if ((IN6_IS_ADDR_LINKLOCAL(&su->sin6.sin6_addr) ||
1000 IN6_IS_ADDR_LINKLOCAL(&su->sin6.sin6_addr)) &&
1001 su->sin6.sin6_scope_id) {
1002 *(u_int16_t *)&su->sin6.sin6_addr.s6_addr[2] =
1003 htons(su->sin6.sin6_scope_id);
1004 su->sin6.sin6_scope_id = 0;
1010 if (which == RTA_DST)
1011 return (inet6_makenetandmask(&su->sin6, q));
1018 if (which == RTA_DST) {
1019 extern short ns_bh[3];
1020 struct sockaddr_ns *sms = &(so_mask.sns);
1021 memset(sms, 0, sizeof(*sms));
1022 sms->sns_family = 0;
1024 sms->sns_addr.x_net = *(union ns_net *)ns_bh;
1025 rtm_addrs |= RTA_NETMASK;
1027 su->sns.sns_addr = ns_addr(s);
1028 return (!ns_nullhost(su->sns.sns_addr));
1033 if (!atalk_aton(s, &su->sat.sat_addr))
1034 errx(EX_NOHOST, "bad address: %s", s);
1035 rtm_addrs |= RTA_NETMASK;
1036 return(forcehost || su->sat.sat_addr.s_node != 0);
1039 link_addr(s, &su->sdl);
1044 su->sa.sa_len = sizeof(*su);
1045 sockaddr(s, &su->sa);
1058 if (q && which == RTA_DST) {
1060 if ((val = inet_network(s)) != INADDR_NONE) {
1061 inet_makenetandmask(
1062 val, &su->sin, strtoul(q+1, 0, 0));
1067 if ((which != RTA_DST || forcenet == 0) &&
1068 inet_aton(s, &su->sin.sin_addr)) {
1069 val = su->sin.sin_addr.s_addr;
1070 if (which != RTA_DST ||
1071 inet_lnaof(su->sin.sin_addr) != INADDR_ANY)
1078 if (which == RTA_DST && forcehost == 0 &&
1079 ((val = inet_network(s)) != INADDR_NONE ||
1080 ((np = getnetbyname(s)) != NULL && (val = np->n_net) != 0))) {
1082 inet_makenetandmask(val, &su->sin, 0);
1085 hp = gethostbyname(s);
1088 su->sin.sin_family = hp->h_addrtype;
1089 memmove((char *)&su->sin.sin_addr, hp->h_addr,
1090 MIN(hp->h_length, sizeof(su->sin.sin_addr)));
1093 errx(EX_NOHOST, "bad address: %s", s);
1100 int len = atoi(s), q, r;
1104 rtm_addrs |= RTA_NETMASK;
1109 p = (char *)&so_mask.sin6.sin6_addr;
1114 p = (char *)&so_mask.sin.sin_addr;
1117 (void) fprintf(stderr, "prefixlen not supported in this af\n");
1122 if (len < 0 || max < len) {
1123 (void) fprintf(stderr, "%s: bad value\n", s);
1129 so_mask.sa.sa_family = af;
1130 so_mask.sa.sa_len = aflen;
1131 memset((void *)p, 0, max / 8);
1133 memset((void *)p, 0xff, q);
1135 *((u_char *)p + q) = (0xff00 >> r) & 0xff;
1143 short ns_nullh[] = {0,0,0};
1144 short ns_bh[] = {-1,-1,-1};
1148 struct sockaddr_ns *sns;
1150 struct ns_addr work;
1151 union { union ns_net net_e; u_long long_e; } net;
1153 static char mybuf[50+MAXHOSTNAMELEN], cport[10], chost[25];
1158 work = sns->sns_addr;
1159 port = ntohs(work.x_port);
1161 net.net_e = work.x_net;
1162 if (ns_nullhost(work) && net.long_e == 0) {
1165 (void) sprintf(mybuf, "*.%XH", port);
1169 if (memcmp(ns_bh, work.x_host.c_host, 6) == 0)
1171 else if (memcmp(ns_nullh, work.x_host.c_host, 6) == 0)
1174 q = work.x_host.c_host;
1175 (void) sprintf(chost, "%02X%02X%02X%02X%02X%02XH",
1176 q[0], q[1], q[2], q[3], q[4], q[5]);
1177 for (p = chost; *p == '0' && p < chost + 12; p++)
1182 (void) sprintf(cport, ".%XH", htons(port));
1186 (void) snprintf(mybuf, sizeof(mybuf), "%lxH.%s%s",
1187 (unsigned long)ntohl(net.long_e),
1198 char *buf, *lim, *next;
1199 register struct rt_msghdr *rtm;
1203 mib[2] = 0; /* protocol */
1204 mib[3] = 0; /* wildcard address family */
1205 mib[4] = NET_RT_IFLIST;
1206 mib[5] = 0; /* no flags */
1207 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0)
1208 err(EX_OSERR, "route-sysctl-estimate");
1209 if ((buf = malloc(needed)) == NULL)
1210 errx(EX_OSERR, "malloc failed");
1211 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0)
1212 err(EX_OSERR, "actual retrieval of interface table");
1214 for (next = buf; next < lim; next += rtm->rtm_msglen) {
1215 rtm = (struct rt_msghdr *)next;
1216 print_rtmsg(rtm, rtm->rtm_msglen);
1233 n = read(s, msg, 2048);
1235 (void) printf("\ngot message of size %d on %s", n, ctime(&now));
1236 print_rtmsg((struct rt_msghdr *)msg, n);
1241 struct rt_msghdr m_rtm;
1251 register char *cp = m_rtmsg.m_space;
1254 #define NEXTADDR(w, u) \
1255 if (rtm_addrs & (w)) {\
1256 l = ROUNDUP(u.sa.sa_len); memmove(cp, &(u), l); cp += l;\
1257 if (verbose) sodump(&(u),"u");\
1261 memset(&m_rtmsg, 0, sizeof(m_rtmsg));
1264 else if (cmd == 'c')
1266 else if (cmd == 'g') {
1268 if (so_ifp.sa.sa_family == 0) {
1269 so_ifp.sa.sa_family = AF_LINK;
1270 so_ifp.sa.sa_len = sizeof(struct sockaddr_dl);
1271 rtm_addrs |= RTA_IFP;
1275 #define rtm m_rtmsg.m_rtm
1277 rtm.rtm_flags = flags;
1278 rtm.rtm_version = RTM_VERSION;
1279 rtm.rtm_seq = ++seq;
1280 rtm.rtm_addrs = rtm_addrs;
1281 rtm.rtm_rmx = rt_metrics;
1282 rtm.rtm_inits = rtm_inits;
1284 if (rtm_addrs & RTA_NETMASK)
1286 NEXTADDR(RTA_DST, so_dst);
1287 NEXTADDR(RTA_GATEWAY, so_gate);
1288 NEXTADDR(RTA_NETMASK, so_mask);
1289 NEXTADDR(RTA_GENMASK, so_genmask);
1290 NEXTADDR(RTA_IFP, so_ifp);
1291 NEXTADDR(RTA_IFA, so_ifa);
1292 rtm.rtm_msglen = l = cp - (char *)&m_rtmsg;
1294 print_rtmsg(&rtm, l);
1297 if ((rlen = write(s, (char *)&m_rtmsg, l)) < 0) {
1298 warn("writing to routing socket");
1301 if (cmd == RTM_GET) {
1303 l = read(s, (char *)&m_rtmsg, sizeof(m_rtmsg));
1304 } while (l > 0 && (rtm.rtm_seq != seq || rtm.rtm_pid != pid));
1306 warn("read from routing socket");
1308 print_getmsg(&rtm, l);
1317 int olen = so_mask.sa.sa_len;
1318 register char *cp1 = olen + (char *)&so_mask, *cp2;
1320 for (so_mask.sa.sa_len = 0; cp1 > (char *)&so_mask; )
1322 so_mask.sa.sa_len = 1 + cp1 - (char *)&so_mask;
1325 if ((rtm_addrs & RTA_DST) == 0)
1327 switch (so_dst.sa.sa_family) {
1339 cp1 = so_mask.sa.sa_len + 1 + (char *)&so_dst;
1340 cp2 = so_dst.sa.sa_len + 1 + (char *)&so_dst;
1343 cp2 = so_mask.sa.sa_len + 1 + (char *)&so_mask;
1344 while (cp1 > so_dst.sa.sa_data)
1348 char *msgtypes[] = {
1350 "RTM_ADD: Add Route",
1351 "RTM_DELETE: Delete Route",
1352 "RTM_CHANGE: Change Metrics or flags",
1353 "RTM_GET: Report Metrics",
1354 "RTM_LOSING: Kernel Suspects Partitioning",
1355 "RTM_REDIRECT: Told to use different route",
1356 "RTM_MISS: Lookup failed on this address",
1357 "RTM_LOCK: fix specified metrics",
1358 "RTM_OLDADD: caused by SIOCADDRT",
1359 "RTM_OLDDEL: caused by SIOCDELRT",
1360 "RTM_RESOLVE: Route created by cloning",
1361 "RTM_NEWADDR: address being added to iface",
1362 "RTM_DELADDR: address being removed from iface",
1363 "RTM_IFINFO: iface status change",
1364 "RTM_NEWMADDR: new multicast group membership on iface",
1365 "RTM_DELMADDR: multicast group membership removed from iface",
1366 "RTM_IFANNOUNCE: interface arrival/departure",
1370 char metricnames[] =
1371 "\011pksent\010rttvar\7rtt\6ssthresh\5sendpipe\4recvpipe\3expire\2hopcount"
1374 "\1UP\2GATEWAY\3HOST\4REJECT\5DYNAMIC\6MODIFIED\7DONE\010MASK_PRESENT"
1375 "\011CLONING\012XRESOLVE\013LLINFO\014STATIC\015BLACKHOLE\016b016"
1376 "\017PROTO2\020PROTO1\021PRCLONING\022WASCLONED\023PROTO3\024CHAINDELETE"
1377 "\025PINNED\026LOCAL\027BROADCAST\030MULTICAST";
1379 "\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5PTP\6b6\7RUNNING\010NOARP"
1380 "\011PPROMISC\012ALLMULTI\013OACTIVE\014SIMPLEX\015LINK0\016LINK1"
1381 "\017LINK2\020MULTICAST";
1383 "\1DST\2GATEWAY\3NETMASK\4GENMASK\5IFP\6IFA\7AUTHOR\010BRD";
1386 print_rtmsg(rtm, msglen)
1387 register struct rt_msghdr *rtm;
1390 struct if_msghdr *ifm;
1391 struct ifa_msghdr *ifam;
1393 struct ifma_msghdr *ifmam;
1395 struct if_announcemsghdr *ifan;
1399 if (rtm->rtm_version != RTM_VERSION) {
1400 (void) printf("routing message version %d not understood\n",
1404 if (msgtypes[rtm->rtm_type] != NULL)
1405 (void)printf("%s: ", msgtypes[rtm->rtm_type]);
1407 (void)printf("#%d: ", rtm->rtm_type);
1408 (void)printf("len %d, ", rtm->rtm_msglen);
1409 switch (rtm->rtm_type) {
1411 ifm = (struct if_msghdr *)rtm;
1412 (void) printf("if# %d, flags:", ifm->ifm_index);
1413 bprintf(stdout, ifm->ifm_flags, ifnetflags);
1414 pmsg_addrs((char *)(ifm + 1), ifm->ifm_addrs);
1418 ifam = (struct ifa_msghdr *)rtm;
1419 (void) printf("metric %d, flags:", ifam->ifam_metric);
1420 bprintf(stdout, ifam->ifam_flags, routeflags);
1421 pmsg_addrs((char *)(ifam + 1), ifam->ifam_addrs);
1426 ifmam = (struct ifma_msghdr *)rtm;
1427 pmsg_addrs((char *)(ifmam + 1), ifmam->ifmam_addrs);
1430 case RTM_IFANNOUNCE:
1431 ifan = (struct if_announcemsghdr *)rtm;
1432 (void) printf("if# %d, what: ", ifan->ifan_index);
1433 switch (ifan->ifan_what) {
1437 case IFAN_DEPARTURE:
1438 printf("departure");
1441 printf("#%d", ifan->ifan_what);
1448 (void) printf("pid: %ld, seq %d, errno %d, flags:",
1449 (long)rtm->rtm_pid, rtm->rtm_seq, rtm->rtm_errno);
1450 bprintf(stdout, rtm->rtm_flags, routeflags);
1456 print_getmsg(rtm, msglen)
1457 register struct rt_msghdr *rtm;
1460 struct sockaddr *dst = NULL, *gate = NULL, *mask = NULL;
1461 struct sockaddr_dl *ifp = NULL;
1462 register struct sockaddr *sa;
1466 (void) printf(" route to: %s\n", routename(&so_dst));
1467 if (rtm->rtm_version != RTM_VERSION) {
1468 warnx("routing message version %d not understood",
1472 if (rtm->rtm_msglen > msglen) {
1473 warnx("message length mismatch, in packet %d, returned %d",
1474 rtm->rtm_msglen, msglen);
1476 if (rtm->rtm_errno) {
1477 errno = rtm->rtm_errno;
1478 warn("message indicates error %d", errno);
1481 cp = ((char *)(rtm + 1));
1483 for (i = 1; i; i <<= 1)
1484 if (i & rtm->rtm_addrs) {
1485 sa = (struct sockaddr *)cp;
1497 if (sa->sa_family == AF_LINK &&
1498 ((struct sockaddr_dl *)sa)->sdl_nlen)
1499 ifp = (struct sockaddr_dl *)sa;
1505 mask->sa_family = dst->sa_family; /* XXX */
1507 (void)printf("destination: %s\n", routename(dst));
1509 int savenflag = nflag;
1512 (void)printf(" mask: %s\n", routename(mask));
1515 if (gate && rtm->rtm_flags & RTF_GATEWAY)
1516 (void)printf(" gateway: %s\n", routename(gate));
1518 (void)printf(" interface: %.*s\n",
1519 ifp->sdl_nlen, ifp->sdl_data);
1520 (void)printf(" flags: ");
1521 bprintf(stdout, rtm->rtm_flags, routeflags);
1523 #define lock(f) ((rtm->rtm_rmx.rmx_locks & __CONCAT(RTV_,f)) ? 'L' : ' ')
1524 #define msec(u) (((u) + 500) / 1000) /* usec to msec */
1526 (void) printf("\n%s\n", "\
1527 recvpipe sendpipe ssthresh rtt,msec rttvar hopcount mtu expire");
1528 printf("%8ld%c ", rtm->rtm_rmx.rmx_recvpipe, lock(RPIPE));
1529 printf("%8ld%c ", rtm->rtm_rmx.rmx_sendpipe, lock(SPIPE));
1530 printf("%8ld%c ", rtm->rtm_rmx.rmx_ssthresh, lock(SSTHRESH));
1531 printf("%8ld%c ", msec(rtm->rtm_rmx.rmx_rtt), lock(RTT));
1532 printf("%8ld%c ", msec(rtm->rtm_rmx.rmx_rttvar), lock(RTTVAR));
1533 printf("%8ld%c ", rtm->rtm_rmx.rmx_hopcount, lock(HOPCOUNT));
1534 printf("%8ld%c ", rtm->rtm_rmx.rmx_mtu, lock(MTU));
1535 if (rtm->rtm_rmx.rmx_expire)
1536 rtm->rtm_rmx.rmx_expire -= time(0);
1537 printf("%8ld%c\n", rtm->rtm_rmx.rmx_expire, lock(EXPIRE));
1540 #define RTA_IGN (RTA_DST|RTA_GATEWAY|RTA_NETMASK|RTA_IFP|RTA_IFA|RTA_BRD)
1543 else if (rtm->rtm_addrs &~ RTA_IGN) {
1544 (void) printf("sockaddrs: ");
1545 bprintf(stdout, rtm->rtm_addrs, addrnames);
1553 register struct rt_msghdr *rtm;
1555 (void) printf("\nlocks: ");
1556 bprintf(stdout, rtm->rtm_rmx.rmx_locks, metricnames);
1557 (void) printf(" inits: ");
1558 bprintf(stdout, rtm->rtm_inits, metricnames);
1559 pmsg_addrs(((char *)(rtm + 1)), rtm->rtm_addrs);
1563 pmsg_addrs(cp, addrs)
1567 register struct sockaddr *sa;
1571 (void) putchar('\n');
1574 (void) printf("\nsockaddrs: ");
1575 bprintf(stdout, addrs, addrnames);
1576 (void) putchar('\n');
1577 for (i = 1; i; i <<= 1)
1579 sa = (struct sockaddr *)cp;
1580 (void) printf(" %s", routename(sa));
1583 (void) putchar('\n');
1584 (void) fflush(stdout);
1598 while ((i = *s++) != 0) {
1599 if (b & (1 << (i-1))) {
1606 for (; (i = *s) > 32; s++)
1613 (void) putc('>', fp);
1620 register struct keytab *kt = keywords;
1622 while (kt->kt_cp && strcmp(kt->kt_cp, cp))
1632 switch (su->sa.sa_family) {
1634 (void) printf("%s: link %s; ",
1635 which, link_ntoa(&su->sdl));
1638 (void) printf("%s: inet %s; ",
1639 which, inet_ntoa(su->sin.sin_addr));
1642 (void) printf("%s: atalk %s; ",
1643 which, atalk_ntoa(su->sat.sat_addr));
1647 (void) printf("%s: xns %s; ",
1648 which, ns_ntoa(su->sns.sns_addr));
1652 (void) fflush(stdout);
1666 register char *addr;
1667 register struct sockaddr *sa;
1669 register char *cp = (char *)sa;
1670 int size = sa->sa_len;
1671 char *cplim = cp + size;
1672 register int byte = 0, state = VIRGIN, new = 0 /* foil gcc */;
1674 memset(cp, 0, size);
1677 if ((*addr >= '0') && (*addr <= '9')) {
1679 } else if ((*addr >= 'a') && (*addr <= 'f')) {
1680 new = *addr - 'a' + 10;
1681 } else if ((*addr >= 'A') && (*addr <= 'F')) {
1682 new = *addr - 'A' + 10;
1683 } else if (*addr == 0)
1688 switch (state /* | INPUT */) {
1689 case GOTTWO | DIGIT:
1690 *cp++ = byte; /*FALLTHROUGH*/
1691 case VIRGIN | DIGIT:
1692 state = GOTONE; byte = new; continue;
1693 case GOTONE | DIGIT:
1694 state = GOTTWO; byte = new + (byte << 4); continue;
1695 default: /* | DELIM */
1696 state = VIRGIN; *cp++ = byte; byte = 0; continue;
1699 *cp++ = byte; /* FALLTHROUGH */
1704 } while (cp < cplim);
1705 sa->sa_len = cp - (char *)sa;
1709 atalk_aton(const char *text, struct at_addr *addr)
1713 if (sscanf(text, "%u.%u", &net, &node) != 2
1714 || net > 0xffff || node > 0xff)
1716 addr->s_net = htons(net);
1717 addr->s_node = node;
1722 atalk_ntoa(struct at_addr at)
1724 static char buf[20];
1726 (void) snprintf(buf, sizeof(buf), "%u.%u", ntohs(at.s_net), at.s_node);