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 1.17 2008/07/07 22:02:09 nant 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>
52 #include <arpa/inet.h>
55 #include <netproto/mpls/mpls.h>
73 struct sockaddr_in sin;
75 struct sockaddr_in6 sin6;
77 struct sockaddr_at sat;
78 struct sockaddr_mpls smpls;
79 struct sockaddr_dl sdl;
80 struct sockaddr_inarp sinarp;
81 struct sockaddr_storage ss; /* added to avoid memory overrun */
82 } so_dst, so_gate, so_mask, so_genmask, so_ifa, so_ifp, so_mpls1,
85 typedef union sockunion *sup;
90 static struct ortentry route;
91 static struct rt_metrics rt_metrics;
92 static int pid, rtm_addrs;
94 static int forcehost, forcenet, af, qflag, tflag;
95 static int iflag, verbose, aflen = sizeof(struct sockaddr_in);
96 static int locking, lockrest, debugonly;
97 static int mplsop, popcount, pushcount, swapcount;
98 static u_long rtm_inits;
101 static int atalk_aton(const char *, struct at_addr *);
102 static char *atalk_ntoa(struct at_addr);
103 static void flushroutes(int, char **);
104 static void set_metric(char *, int);
105 static void newroute(int, char **);
106 static void inet_makenetandmask(u_long, struct sockaddr_in *, u_long);
107 static void interfaces(void);
108 static void monitor(void);
109 static void sockaddr(const char *, struct sockaddr *);
110 static void sodump(sup, const char *);
111 static void bprintf(FILE *, int, u_char *);
112 static void print_getmsg(struct rt_msghdr *, int);
113 static void print_rtmsg(struct rt_msghdr *, int);
114 static void pmsg_common(struct rt_msghdr *);
115 static void pmsg_addrs(char *, int);
116 static void mask_addr(void);
117 static int getaddr(int, const char *, struct hostent **);
118 static int rtmsg(int, int);
119 static int prefixlen(const char *);
121 static int inet6_makenetandmask(struct sockaddr_in6 *, const char *);
125 usage(const char *cp)
128 warnx("bad keyword: %s", cp);
129 fprintf(stderr, "usage: route [-dnqtv] command [[modifiers] args]\n");
135 ((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long))
136 #define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len))
139 main(int argc, char **argv)
146 while ((ch = getopt(argc, argv, "c:wnqdtv")) != -1)
149 cpuflag = strtol(optarg, NULL, 0);
179 s = open(_PATH_DEVNULL, O_WRONLY, 0);
181 s = socket(PF_ROUTE, SOCK_RAW, 0);
183 err(EX_OSERR, "socket");
185 switch (keyword(*argv)) {
193 newroute(argc, argv);
205 flushroutes(argc, argv);
214 * Purge all entries in the routing tables not
215 * associated with network interfaces.
218 flushroutes(int argc, char **argv)
221 int mib[7], rlen, seqno;
223 char *buf, *next, *lim;
224 struct rt_msghdr *rtm;
227 errx(EX_NOPERM, "must be root to alter routing table");
229 shutdown(s, SHUT_RD); /* Don't want to read back our messages */
232 if (argc == 2 && **argv == '-')
233 switch (keyword(*argv + 1)) {
258 mib[2] = 0; /* protocol */
259 mib[3] = 0; /* wildcard address family */
260 mib[4] = NET_RT_DUMP;
261 mib[5] = 0; /* no flags */
268 if (sysctl(mib, miblen, NULL, &needed, NULL, 0) < 0)
269 err(EX_OSERR, "route-sysctl-estimate");
270 if ((buf = malloc(needed)) == NULL)
271 errx(EX_OSERR, "malloc failed");
272 if (sysctl(mib, miblen, buf, &needed, NULL, 0) < 0)
273 err(EX_OSERR, "route-sysctl-get");
276 printf("Examining routing table from sysctl\n");
278 for (next = buf; next < lim; next += rtm->rtm_msglen) {
279 rtm = (struct rt_msghdr *)next;
281 print_rtmsg(rtm, rtm->rtm_msglen);
282 if ((rtm->rtm_flags & RTF_GATEWAY) == 0)
285 struct sockaddr *sa = (struct sockaddr *)(rtm + 1);
287 if (sa->sa_family != af)
292 rtm->rtm_type = RTM_DELETE;
293 rtm->rtm_seq = seqno;
294 rlen = write(s, next, rtm->rtm_msglen);
295 if (rlen < (int)rtm->rtm_msglen) {
296 warn("write to routing socket");
297 printf("got only %d for rlen\n", rlen);
304 print_rtmsg(rtm, rlen);
306 struct sockaddr *sa = (struct sockaddr *)(rtm + 1);
308 printf("%-20s ", rtm->rtm_flags & RTF_HOST ?
309 routename(sa) : netname(sa));
311 printf("%-20.20s ", rtm->rtm_flags & RTF_HOST ?
312 routename(sa) : netname(sa));
314 sa = (struct sockaddr *)(ROUNDUP(sa->sa_len) +
317 printf("%-20s ", routename(sa));
319 printf("%-20.20s ", routename(sa));
327 routename(struct sockaddr *sa)
330 static char line[MAXHOSTNAMELEN + 1];
332 static char domain[MAXHOSTNAMELEN + 1];
333 static int first = 1;
337 if (gethostname(domain, MAXHOSTNAMELEN) == 0 &&
338 (cp = strchr(domain, '.'))) {
339 domain[MAXHOSTNAMELEN] = '\0';
340 strcpy(domain, cp + 1);
346 strcpy(line, "default");
347 else switch (sa->sa_family) {
351 in = ((struct sockaddr_in *)sa)->sin_addr;
354 if (in.s_addr == INADDR_ANY || sa->sa_len < 4)
356 if (cp == NULL && !nflag) {
357 hp = gethostbyaddr(&in, sizeof(struct in_addr),
361 cptr = strchr(hp->h_name, '.');
362 if (cptr != NULL && !wflag &&
363 strcmp(cptr + 1, domain) == 0)
369 strncpy(line, cp, sizeof(line) - 1);
370 line[sizeof(line) - 1] = '\0';
372 sprintf(line, "%s", inet_ntoa(in));
379 struct sockaddr_in6 sin6; /* use static var for safety */
381 #ifdef NI_WITHSCOPEID
382 niflags = NI_WITHSCOPEID;
385 memset(&sin6, 0, sizeof(sin6));
386 memcpy(&sin6, sa, sa->sa_len);
387 sin6.sin6_len = sizeof(struct sockaddr_in6);
388 sin6.sin6_family = AF_INET6;
390 if (sa->sa_len == sizeof(struct sockaddr_in6) &&
391 (IN6_IS_ADDR_LINKLOCAL(&sin6.sin6_addr) ||
392 IN6_IS_ADDR_MC_LINKLOCAL(&sin6.sin6_addr)) &&
393 sin6.sin6_scope_id == 0) {
395 ntohs(*(u_int16_t *)&sin6.sin6_addr.s6_addr[2]);
396 sin6.sin6_addr.s6_addr[2] = 0;
397 sin6.sin6_addr.s6_addr[3] = 0;
401 niflags |= NI_NUMERICHOST;
402 if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len,
403 line, sizeof(line), NULL, 0, niflags) != 0)
404 strncpy(line, "invalid", sizeof(line));
411 snprintf(line, sizeof(line), "atalk %s",
412 atalk_ntoa(((struct sockaddr_at *)sa)->sat_addr));
416 return(link_ntoa((struct sockaddr_dl *)sa));
421 * Unknown address family; just render the raw
422 * data in sa->sa_data as hex values.
424 uint8_t *sp = (uint8_t *)sa->sa_data;
425 uint8_t *splim = (uint8_t *)sa + sa->sa_len;
426 char *cps = line + sprintf(line, "(%d)", sa->sa_family);
427 char *cpe = line + sizeof(line);
429 while (sp < splim && cps < cpe)
430 cps += snprintf(cps, cpe - cps, " %02x", *sp++);
438 * Return the name of the network whose address is given.
439 * The address is assumed to be that of a net or subnet, not a host.
442 netname(struct sockaddr *sa)
445 static char line[MAXHOSTNAMELEN + 1];
446 struct netent *np = 0;
451 switch (sa->sa_family) {
455 in = ((struct sockaddr_in *)sa)->sin_addr;
457 i = in.s_addr = ntohl(in.s_addr);
462 mask = IN_CLASSA_NET;
464 } else if (IN_CLASSB(i)) {
465 mask = IN_CLASSB_NET;
468 mask = IN_CLASSC_NET;
472 * If there are more bits than the standard mask
473 * would suggest, subnets must be in use.
474 * Guess at the subnet mask, assuming reasonable
475 * width subnet fields.
477 while (in.s_addr &~ mask)
478 mask = (long)mask >> subnetshift;
479 net = in.s_addr & mask;
480 while ((mask & 1) == 0)
481 mask >>= 1, net >>= 1;
482 np = getnetbyaddr(net, AF_INET);
486 #define C(x) (unsigned)((x) & 0xff)
488 strncpy(line, cp, sizeof(line));
489 else if ((in.s_addr & 0xffffff) == 0)
490 sprintf(line, "%u", C(in.s_addr >> 24));
491 else if ((in.s_addr & 0xffff) == 0)
492 sprintf(line, "%u.%u", C(in.s_addr >> 24),
494 else if ((in.s_addr & 0xff) == 0)
495 sprintf(line, "%u.%u.%u", C(in.s_addr >> 24),
496 C(in.s_addr >> 16), C(in.s_addr >> 8));
498 sprintf(line, "%u.%u.%u.%u", C(in.s_addr >> 24),
499 C(in.s_addr >> 16), C(in.s_addr >> 8),
508 struct sockaddr_in6 sin6; /* use static var for safety */
510 #ifdef NI_WITHSCOPEID
511 niflags = NI_WITHSCOPEID;
514 memset(&sin6, 0, sizeof(sin6));
515 memcpy(&sin6, sa, sa->sa_len);
516 sin6.sin6_len = sizeof(struct sockaddr_in6);
517 sin6.sin6_family = AF_INET6;
519 if (sa->sa_len == sizeof(struct sockaddr_in6) &&
520 (IN6_IS_ADDR_LINKLOCAL(&sin6.sin6_addr) ||
521 IN6_IS_ADDR_MC_LINKLOCAL(&sin6.sin6_addr)) &&
522 sin6.sin6_scope_id == 0) {
524 ntohs(*(u_int16_t *)&sin6.sin6_addr.s6_addr[2]);
525 sin6.sin6_addr.s6_addr[2] = 0;
526 sin6.sin6_addr.s6_addr[3] = 0;
530 niflags |= NI_NUMERICHOST;
531 if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len,
532 line, sizeof(line), NULL, 0, niflags) != 0)
533 strncpy(line, "invalid", sizeof(line));
540 snprintf(line, sizeof(line), "atalk %s",
541 atalk_ntoa(((struct sockaddr_at *)sa)->sat_addr));
545 return(link_ntoa((struct sockaddr_dl *)sa));
551 * Unknown address family; just render the raw
552 * data in sa->sa_data as hex values.
554 uint8_t *sp = (uint8_t *)sa->sa_data;
555 uint8_t *splim = (uint8_t *)sa + sa->sa_len;
556 char *cps = line + sprintf(line, "af %d:", sa->sa_family);
557 char *cpe = line + sizeof(line);
559 while (sp < splim && cps < cpe)
560 cps += snprintf(cps, cpe - cps, " %02x", *sp++);
568 set_metric(char *value, int key)
571 u_long noval, *valp = &noval;
574 #define caseof(x, y, z) case x: valp = &rt_metrics.z; flag = y; break
575 caseof(K_MTU, RTV_MTU, rmx_mtu);
576 caseof(K_HOPCOUNT, RTV_HOPCOUNT, rmx_hopcount);
577 caseof(K_EXPIRE, RTV_EXPIRE, rmx_expire);
578 caseof(K_RECVPIPE, RTV_RPIPE, rmx_recvpipe);
579 caseof(K_SENDPIPE, RTV_SPIPE, rmx_sendpipe);
580 caseof(K_SSTHRESH, RTV_SSTHRESH, rmx_ssthresh);
581 caseof(K_RTT, RTV_RTT, rmx_rtt);
582 caseof(K_RTTVAR, RTV_RTTVAR, rmx_rttvar);
585 if (lockrest || locking)
586 rt_metrics.rmx_locks |= flag;
593 newroute(int argc, char **argv)
596 const char *err_str, *dest = "", *gateway = "";
597 int ishost = 0, proxy = 0, ret, attempts, oerrno, flags = RTF_STATIC;
599 struct hostent *hp = 0;
602 errx(EX_NOPERM, "must be root to alter routing table");
606 shutdown(s, SHUT_RD); /* Don't want to read back our messages */
608 if (**(++argv)== '-') {
609 switch (key = keyword(1 + *argv)) {
612 aflen = sizeof(struct sockaddr_dl);
616 aflen = sizeof(struct sockaddr_in);
621 aflen = sizeof(struct sockaddr_in6);
626 aflen = sizeof(struct sockaddr_at);
630 aflen = sizeof(union sockunion);
637 flags &= ~RTF_STATIC;
655 flags |= RTF_BLACKHOLE;
667 flags |= RTF_CLONING;
670 flags |= RTF_XRESOLVE;
678 getaddr(RTA_IFA, *++argv, 0);
683 getaddr(RTA_IFP, *++argv, 0);
688 getaddr(RTA_GENMASK, *++argv, 0);
693 getaddr(RTA_GATEWAY, *++argv, 0);
698 ishost = getaddr(RTA_DST, *++argv, &hp);
704 getaddr(RTA_NETMASK, *++argv, 0);
712 if (prefixlen(*++argv) == -1) {
722 aflen = sizeof(struct sockaddr_mpls);
725 flags |= RTF_MPLSOPS;
727 mplsop = MPLSLOP_POP;
730 getaddr(RTA_MPLS1, "", 0);
733 getaddr(RTA_MPLS2, "", 0);
736 getaddr(RTA_MPLS3, "", 0);
743 warnx("Push or swap after pop. Ignoring.");
747 mplsop = MPLSLOP_PUSH;
751 warnx("Swap after push. Ignoring.");
755 warnx("Too many swaps. Ignoring.");
758 mplsop = MPLSLOP_SWAP;
761 flags |= RTF_MPLSOPS;
763 aflen = sizeof(struct sockaddr_mpls);
766 switch(pushcount + swapcount){
768 getaddr(RTA_MPLS1, *++argv, 0);
771 getaddr(RTA_MPLS2, *++argv, 0);
774 getaddr(RTA_MPLS3, *++argv, 0);
788 set_metric(*++argv, key);
794 if ((rtm_addrs & RTA_DST) == 0) {
796 ishost = getaddr(RTA_DST, *argv, &hp);
797 } else if ((rtm_addrs & RTA_GATEWAY) == 0) {
799 getaddr(RTA_GATEWAY, *argv, &hp);
801 getaddr(RTA_NETMASK, *argv, 0);
809 if (af == AF_INET6) {
810 rtm_addrs &= ~RTA_NETMASK;
811 memset((void *)&so_mask, 0, sizeof(so_mask));
821 flags |= RTF_GATEWAY;
823 so_dst.sinarp.sin_other = SIN_PROXY;
824 flags |= RTF_ANNOUNCE;
826 for (attempts = 1; ; attempts++) {
828 if ((ret = rtmsg(*cmd, flags)) == 0)
830 if (errno != ENETUNREACH && errno != ESRCH)
832 if (af == AF_INET && *gateway != '\0' &&
833 hp != NULL && hp->h_addr_list[1] != NULL) {
835 memmove(&so_gate.sin.sin_addr,
837 MIN((size_t)hp->h_length,
838 sizeof(so_gate.sin.sin_addr)));
846 printf("%s %s %s", cmd, ishost? "host" : "net", dest);
847 if (*gateway != '\0') {
848 printf(": gateway %s", gateway);
849 if (attempts > 1 && ret == 0 && af == AF_INET)
851 inet_ntoa(((struct sockaddr_in *)&route.rt_gateway)->sin_addr));
858 err_str = "not in table";
861 err_str = "entry in use";
864 err_str = "routing table overflow";
866 case EDQUOT: /* handle recursion avoidance in
868 err_str = "gateway uses the same route";
871 err_str = strerror(oerrno);
874 printf(": %s\n", err_str);
881 inet_makenetandmask(u_long net, struct sockaddr_in *in, u_long bits)
883 u_long addr, mask = 0;
886 rtm_addrs |= RTA_NETMASK;
888 * XXX: This approach unable to handle 0.0.0.1/32 correctly
889 * as inet_network() converts 0.0.0.1 and 1 equally.
892 addr = net << IN_CLASSA_NSHIFT;
893 else if (net <= 0xffff)
894 addr = net << IN_CLASSB_NSHIFT;
895 else if (net <= 0xffffff)
896 addr = net << IN_CLASSC_NSHIFT;
901 mask = 0xffffffff << (32 - bits);
904 else if (IN_CLASSA(addr))
905 mask = IN_CLASSA_NET;
906 else if (IN_CLASSB(addr))
907 mask = IN_CLASSB_NET;
908 else if (IN_CLASSC(addr))
909 mask = IN_CLASSC_NET;
910 else if (IN_MULTICAST(addr))
911 mask = IN_CLASSD_NET;
915 in->sin_addr.s_addr = htonl(addr);
917 in->sin_addr.s_addr = htonl(mask);
920 cp = (char *)(&in->sin_addr + 1);
921 while (*--cp == 0 && cp > (char *)in)
923 in->sin_len = 1 + cp - (char *)in;
928 * XXX the function may need more improvement...
931 inet6_makenetandmask(struct sockaddr_in6 *sin6, const char *plen)
936 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr) &&
937 sin6->sin6_scope_id == 0) {
939 } else if ((sin6->sin6_addr.s6_addr[0] & 0xe0) == 0x20) {
940 /* aggregatable global unicast - RFC2374 */
941 memset(&in6, 0, sizeof(in6));
942 if (memcmp(&sin6->sin6_addr.s6_addr[8],
943 &in6.s6_addr[8], 8) == 0)
948 if (plen == NULL || strcmp(plen, "128") == 0)
950 rtm_addrs |= RTA_NETMASK;
957 * Interpret an argument as a network address of some kind,
958 * returning 1 if a host address, 0 if a network address.
961 getaddr(int which, const char *str, struct hostent **hpp)
968 int afamily; /* local copy of af so we can change it */
972 aflen = sizeof(struct sockaddr_in);
983 struct ifaddrs *ifap, *ifa;
984 struct sockaddr_dl *sdl = NULL;
986 if (getifaddrs(&ifap))
987 err(1, "getifaddrs");
989 for (ifa = ifap; ifa != NULL; ifa = ifa->ifa_next) {
990 if (ifa->ifa_addr->sa_family != AF_LINK)
993 if (strcmp(str, ifa->ifa_name) != 0)
996 sdl = (struct sockaddr_dl *)ifa->ifa_addr;
998 /* If we found it, then use it */
1001 * Copy is safe since we have a
1002 * sockaddr_storage member in sockunion{}.
1003 * Note that we need to copy before calling
1006 * Interface routes are routed only by their
1007 * sdl_index or interface name (we provide
1008 * both here), not by the ARP address of the
1009 * local interface (alen, slen = 0).
1011 memcpy(&su->sdl, sdl, sdl->sdl_len);
1012 su->sdl.sdl_alen = 0;
1013 su->sdl.sdl_slen = 0;
1043 usage("internal error");
1046 su->sa.sa_len = aflen;
1047 su->sa.sa_family = afamily; /* cases that don't want it have left
1049 if (strcmp(str, "default") == 0) {
1051 * Default is net 0.0.0.0/0
1056 /* bzero(su, sizeof(*su)); *//* for readability */
1057 getaddr(RTA_NETMASK, str, 0);
1061 /* bzero(su, sizeof(*su)); *//* for readability */
1070 struct addrinfo hints, *res;
1073 if (which == RTA_DST && (q = strchr(str, '/')) != NULL)
1075 memset(&hints, 0, sizeof(hints));
1076 hints.ai_family = afamily; /*AF_INET6*/
1077 hints.ai_flags = AI_NUMERICHOST;
1078 hints.ai_socktype = SOCK_DGRAM; /*dummy*/
1079 if (getaddrinfo(str, "0", &hints, &res) != 0 ||
1080 res->ai_family != AF_INET6 ||
1081 res->ai_addrlen != sizeof(su->sin6)) {
1082 fprintf(stderr, "%s: bad value\n", str);
1085 memcpy(&su->sin6, res->ai_addr, sizeof(su->sin6));
1087 if ((IN6_IS_ADDR_LINKLOCAL(&su->sin6.sin6_addr) ||
1088 IN6_IS_ADDR_LINKLOCAL(&su->sin6.sin6_addr)) &&
1089 su->sin6.sin6_scope_id) {
1090 *(u_int16_t *)&su->sin6.sin6_addr.s6_addr[2] =
1091 htons(su->sin6.sin6_scope_id);
1092 su->sin6.sin6_scope_id = 0;
1098 if (which == RTA_DST)
1099 return(inet6_makenetandmask(&su->sin6, q));
1105 if (!atalk_aton(str, &su->sat.sat_addr))
1106 errx(EX_NOHOST, "bad address: %s", str);
1107 rtm_addrs |= RTA_NETMASK;
1108 return(forcehost || su->sat.sat_addr.s_node != 0);
1111 link_addr(str, &su->sdl);
1115 su->sa.sa_len = sizeof(*su);
1116 sockaddr(str, &su->sa);
1123 bzero(su, sizeof(*su));
1124 su->sa.sa_len = sizeof(*su);
1125 su->sa.sa_family = AF_MPLS;
1126 su->smpls.smpls_op = mplsop;
1127 if (mplsop != MPLSLOP_POP && mplsop != MPLSLOP_POPALL &&
1129 if (sscanf(str, "%u", &label) != 1)
1130 errx(EX_NOHOST, "bad address: %s", str);
1131 su->smpls.smpls_label = htonl(label);
1145 q = strchr(str,'/');
1146 if (q != NULL && which == RTA_DST) {
1148 if ((val = inet_network(str)) != INADDR_NONE) {
1149 inet_makenetandmask(
1150 val, &su->sin, strtoul(q+1, 0, 0));
1155 if ((which != RTA_DST || forcenet == 0) &&
1156 inet_aton(str, &su->sin.sin_addr)) {
1157 val = su->sin.sin_addr.s_addr;
1158 if (which != RTA_DST ||
1159 inet_lnaof(su->sin.sin_addr) != INADDR_ANY)
1166 if (which == RTA_DST && forcehost == 0 &&
1167 ((val = inet_network(str)) != INADDR_NONE ||
1168 ((np = getnetbyname(str)) != NULL && (val = np->n_net) != 0))) {
1170 inet_makenetandmask(val, &su->sin, 0);
1173 hp = gethostbyname(str);
1176 su->sin.sin_family = hp->h_addrtype;
1177 memmove((char *)&su->sin.sin_addr, hp->h_addr,
1178 MIN((size_t)hp->h_length, sizeof(su->sin.sin_addr)));
1181 errx(EX_NOHOST, "bad address: %s", str);
1185 prefixlen(const char *len_str)
1187 int len = atoi(len_str), q, r;
1191 rtm_addrs |= RTA_NETMASK;
1196 p = (char *)&so_mask.sin6.sin6_addr;
1201 p = (char *)&so_mask.sin.sin_addr;
1204 fprintf(stderr, "prefixlen not supported in this af\n");
1209 if (len < 0 || max < len) {
1210 fprintf(stderr, "%s: bad value\n", len_str);
1216 so_mask.sa.sa_family = af;
1217 so_mask.sa.sa_len = aflen;
1218 memset((void *)p, 0, max / 8);
1220 memset((void *)p, 0xff, q);
1222 *((u_char *)p + q) = (0xff00 >> r) & 0xff;
1234 char *buf, *lim, *next;
1235 struct rt_msghdr *rtm;
1239 mib[2] = 0; /* protocol */
1240 mib[3] = 0; /* wildcard address family */
1241 mib[4] = NET_RT_IFLIST;
1242 mib[5] = 0; /* no flags */
1243 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0)
1244 err(EX_OSERR, "route-sysctl-estimate");
1245 if ((buf = malloc(needed)) == NULL)
1246 errx(EX_OSERR, "malloc failed");
1247 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0)
1248 err(EX_OSERR, "actual retrieval of interface table");
1250 for (next = buf; next < lim; next += rtm->rtm_msglen) {
1251 rtm = (struct rt_msghdr *)next;
1252 print_rtmsg(rtm, rtm->rtm_msglen);
1269 n = read(s, msg, 2048);
1271 printf("\ngot message of size %d on %s", n, ctime(&now));
1272 print_rtmsg((struct rt_msghdr *)msg, n);
1277 struct rt_msghdr m_rtm;
1282 rtmsg(int cmd, int flags)
1286 char *cp = m_rtmsg.m_space;
1289 #define NEXTADDR(w, u) \
1290 if (rtm_addrs & (w)) {\
1291 l = ROUNDUP(u.sa.sa_len); memmove(cp, &(u), l); cp += l;\
1292 if (verbose) sodump(&(u),"u");\
1296 memset(&m_rtmsg, 0, sizeof(m_rtmsg));
1299 else if (cmd == 'c')
1301 else if (cmd == 'g') {
1303 if (so_ifp.sa.sa_family == 0) {
1304 so_ifp.sa.sa_family = AF_LINK;
1305 so_ifp.sa.sa_len = sizeof(struct sockaddr_dl);
1306 rtm_addrs |= RTA_IFP;
1310 #define rtm m_rtmsg.m_rtm
1312 rtm.rtm_flags = flags;
1313 rtm.rtm_version = RTM_VERSION;
1314 rtm.rtm_seq = ++seq;
1315 rtm.rtm_addrs = rtm_addrs;
1316 rtm.rtm_rmx = rt_metrics;
1317 rtm.rtm_inits = rtm_inits;
1319 if (rtm_addrs & RTA_NETMASK)
1321 NEXTADDR(RTA_DST, so_dst);
1322 NEXTADDR(RTA_GATEWAY, so_gate);
1323 NEXTADDR(RTA_NETMASK, so_mask);
1324 NEXTADDR(RTA_GENMASK, so_genmask);
1325 NEXTADDR(RTA_IFP, so_ifp);
1326 NEXTADDR(RTA_IFA, so_ifa);
1327 NEXTADDR(RTA_MPLS1, so_mpls1);
1328 NEXTADDR(RTA_MPLS2, so_mpls2);
1329 NEXTADDR(RTA_MPLS3, so_mpls3);
1330 rtm.rtm_msglen = l = cp - (char *)&m_rtmsg;
1332 print_rtmsg(&rtm, l);
1335 if ((rlen = write(s, (char *)&m_rtmsg, l)) < 0) {
1336 warn("writing to routing socket");
1339 if (cmd == RTM_GET) {
1341 l = read(s, (char *)&m_rtmsg, sizeof(m_rtmsg));
1342 } while (l > 0 && (rtm.rtm_seq != seq || rtm.rtm_pid != pid));
1344 warn("read from routing socket");
1346 print_getmsg(&rtm, l);
1355 int olen = so_mask.sa.sa_len;
1356 char *cp1 = olen + (char *)&so_mask, *cp2;
1358 for (so_mask.sa.sa_len = 0; cp1 > (char *)&so_mask; )
1360 so_mask.sa.sa_len = 1 + cp1 - (char *)&so_mask;
1363 if ((rtm_addrs & RTA_DST) == 0)
1365 switch (so_dst.sa.sa_family) {
1374 cp1 = so_mask.sa.sa_len + 1 + (char *)&so_dst;
1375 cp2 = so_dst.sa.sa_len + 1 + (char *)&so_dst;
1378 cp2 = so_mask.sa.sa_len + 1 + (char *)&so_mask;
1379 while (cp1 > so_dst.sa.sa_data)
1383 const char *msgtypes[] = {
1385 "RTM_ADD: Add Route",
1386 "RTM_DELETE: Delete Route",
1387 "RTM_CHANGE: Change Metrics or flags",
1388 "RTM_GET: Report Metrics",
1389 "RTM_LOSING: Kernel Suspects Partitioning",
1390 "RTM_REDIRECT: Told to use different route",
1391 "RTM_MISS: Lookup failed on this address",
1392 "RTM_LOCK: fix specified metrics",
1393 "RTM_OLDADD: caused by SIOCADDRT",
1394 "RTM_OLDDEL: caused by SIOCDELRT",
1395 "RTM_RESOLVE: Route created by cloning",
1396 "RTM_NEWADDR: address being added to iface",
1397 "RTM_DELADDR: address being removed from iface",
1398 "RTM_IFINFO: iface status change",
1399 "RTM_NEWMADDR: new multicast group membership on iface",
1400 "RTM_DELMADDR: multicast group membership removed from iface",
1401 "RTM_IFANNOUNCE: interface arrival/departure",
1405 char metricnames[] =
1406 "\011pksent\010rttvar\7rtt\6ssthresh\5sendpipe\4recvpipe\3expire\2hopcount"
1409 "\1UP\2GATEWAY\3HOST\4REJECT\5DYNAMIC\6MODIFIED\7DONE\010MASK_PRESENT"
1410 "\011CLONING\012XRESOLVE\013LLINFO\014STATIC\015BLACKHOLE\016b016"
1411 "\017PROTO2\020PROTO1\021PRCLONING\022WASCLONED\023PROTO3\024CHAINDELETE"
1412 "\025PINNED\026LOCAL\027BROADCAST\030MULTICAST";
1414 "\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5PTP\6b6\7RUNNING\010NOARP"
1415 "\011PPROMISC\012ALLMULTI\013OACTIVE\014SIMPLEX\015LINK0\016LINK1"
1416 "\017LINK2\020MULTICAST";
1418 "\1DST\2GATEWAY\3NETMASK\4GENMASK\5IFP\6IFA\7AUTHOR\010BRD"
1419 "\011MPLS1\012MPLS2\013MPLS3";
1422 print_rtmsg(struct rt_msghdr *rtm, int msglen __unused)
1424 struct if_msghdr *ifm;
1425 struct ifa_msghdr *ifam;
1427 struct ifma_msghdr *ifmam;
1429 struct if_announcemsghdr *ifan;
1433 if (rtm->rtm_version != RTM_VERSION) {
1434 printf("routing message version %d not understood\n",
1438 if (msgtypes[rtm->rtm_type] != NULL)
1439 printf("%s: ", msgtypes[rtm->rtm_type]);
1441 printf("#%d: ", rtm->rtm_type);
1442 printf("len %d, ", rtm->rtm_msglen);
1443 switch (rtm->rtm_type) {
1445 ifm = (struct if_msghdr *)rtm;
1446 printf("if# %d, flags:", ifm->ifm_index);
1447 bprintf(stdout, ifm->ifm_flags, ifnetflags);
1448 pmsg_addrs((char *)(ifm + 1), ifm->ifm_addrs);
1452 ifam = (struct ifa_msghdr *)rtm;
1453 printf("metric %d, flags:", ifam->ifam_metric);
1454 bprintf(stdout, ifam->ifam_flags, routeflags);
1455 pmsg_addrs((char *)(ifam + 1), ifam->ifam_addrs);
1460 ifmam = (struct ifma_msghdr *)rtm;
1461 pmsg_addrs((char *)(ifmam + 1), ifmam->ifmam_addrs);
1464 case RTM_IFANNOUNCE:
1465 ifan = (struct if_announcemsghdr *)rtm;
1466 printf("if# %d, what: ", ifan->ifan_index);
1467 switch (ifan->ifan_what) {
1471 case IFAN_DEPARTURE:
1472 printf("departure");
1475 printf("#%d", ifan->ifan_what);
1482 printf("pid: %ld, seq %d, errno %d, flags:",
1483 (long)rtm->rtm_pid, rtm->rtm_seq, rtm->rtm_errno);
1484 bprintf(stdout, rtm->rtm_flags, routeflags);
1490 print_getmsg(struct rt_msghdr *rtm, int msglen)
1492 struct sockaddr *dst = NULL, *gate = NULL, *mask = NULL;
1493 struct sockaddr_dl *ifp = NULL;
1494 struct sockaddr *sa;
1498 printf(" route to: %s\n", routename(&so_dst.sa));
1499 if (rtm->rtm_version != RTM_VERSION) {
1500 warnx("routing message version %d not understood",
1504 if (rtm->rtm_msglen > msglen) {
1505 warnx("message length mismatch, in packet %d, returned %d",
1506 rtm->rtm_msglen, msglen);
1508 if (rtm->rtm_errno != 0) {
1509 errno = rtm->rtm_errno;
1510 warn("message indicates error %d", errno);
1513 cp = ((char *)(rtm + 1));
1515 for (i = 1; i != 0; i <<= 1)
1516 if (i & rtm->rtm_addrs) {
1517 sa = (struct sockaddr *)cp;
1529 if (sa->sa_family == AF_LINK &&
1530 ((struct sockaddr_dl *)sa)->sdl_nlen)
1531 ifp = (struct sockaddr_dl *)sa;
1536 if (dst != NULL && mask != NULL)
1537 mask->sa_family = dst->sa_family; /* XXX */
1539 printf("destination: %s\n", routename(dst));
1541 int savenflag = nflag;
1544 printf(" mask: %s\n", routename(mask));
1547 if (gate != NULL && rtm->rtm_flags & RTF_GATEWAY)
1548 printf(" gateway: %s\n", routename(gate));
1550 printf(" interface: %.*s\n",
1551 ifp->sdl_nlen, ifp->sdl_data);
1553 bprintf(stdout, rtm->rtm_flags, routeflags);
1555 #define lock(f) ((rtm->rtm_rmx.rmx_locks & __CONCAT(RTV_,f)) ? 'L' : ' ')
1556 #define msec(u) (((u) + 500) / 1000) /* usec to msec */
1559 recvpipe sendpipe ssthresh rtt,msec rttvar hopcount mtu expire");
1560 printf("%8ld%c ", rtm->rtm_rmx.rmx_recvpipe, lock(RPIPE));
1561 printf("%8ld%c ", rtm->rtm_rmx.rmx_sendpipe, lock(SPIPE));
1562 printf("%8ld%c ", rtm->rtm_rmx.rmx_ssthresh, lock(SSTHRESH));
1563 printf("%8ld%c ", msec(rtm->rtm_rmx.rmx_rtt), lock(RTT));
1564 printf("%8ld%c ", msec(rtm->rtm_rmx.rmx_rttvar), lock(RTTVAR));
1565 printf("%8ld%c ", rtm->rtm_rmx.rmx_hopcount, lock(HOPCOUNT));
1566 printf("%8ld%c ", rtm->rtm_rmx.rmx_mtu, lock(MTU));
1567 if (rtm->rtm_rmx.rmx_expire != 0)
1568 rtm->rtm_rmx.rmx_expire -= time(0);
1569 printf("%8ld%c\n", rtm->rtm_rmx.rmx_expire, lock(EXPIRE));
1572 #define RTA_IGN (RTA_DST|RTA_GATEWAY|RTA_NETMASK|RTA_IFP|RTA_IFA|RTA_BRD)
1575 else if (rtm->rtm_addrs &~ RTA_IGN) {
1576 printf("sockaddrs: ");
1577 bprintf(stdout, rtm->rtm_addrs, addrnames);
1584 pmsg_common(struct rt_msghdr *rtm)
1586 printf("\nlocks: ");
1587 bprintf(stdout, rtm->rtm_rmx.rmx_locks, metricnames);
1589 bprintf(stdout, rtm->rtm_inits, metricnames);
1590 pmsg_addrs(((char *)(rtm + 1)), rtm->rtm_addrs);
1594 pmsg_addrs(char *cp, int addrs)
1596 struct sockaddr *sa;
1603 printf("\nsockaddrs: ");
1604 bprintf(stdout, addrs, addrnames);
1606 for (i = 1; i != 0; i <<= 1)
1608 sa = (struct sockaddr *)cp;
1609 printf(" %s", routename(sa));
1617 bprintf(FILE *fp, int b, u_char *str)
1624 while ((i = *str++) != 0) {
1625 if (b & (1 << (i-1))) {
1632 for (; (i = *str) > 32; str++)
1643 keyword(const char *cp)
1645 struct keytab *kt = keywords;
1647 while (kt->kt_cp != NULL && strcmp(kt->kt_cp, cp) != 0)
1653 sodump(sup su, const char *which)
1655 switch (su->sa.sa_family) {
1657 printf("%s: link %s; ",
1658 which, link_ntoa(&su->sdl));
1661 printf("%s: inet %s; ",
1662 which, inet_ntoa(su->sin.sin_addr));
1665 printf("%s: atalk %s; ",
1666 which, atalk_ntoa(su->sat.sat_addr));
1682 sockaddr(const char *addr, struct sockaddr *sa)
1684 char *cp = (char *)sa;
1685 int size = sa->sa_len;
1686 char *cplim = cp + size;
1687 int byte = 0, state = VIRGIN, new = 0 /* foil gcc */;
1689 memset(cp, 0, size);
1692 if ((*addr >= '0') && (*addr <= '9')) {
1694 } else if ((*addr >= 'a') && (*addr <= 'f')) {
1695 new = *addr - 'a' + 10;
1696 } else if ((*addr >= 'A') && (*addr <= 'F')) {
1697 new = *addr - 'A' + 10;
1698 } else if (*addr == '\0')
1703 switch (state /* | INPUT */) {
1704 case GOTTWO | DIGIT:
1705 *cp++ = byte; /*FALLTHROUGH*/
1706 case VIRGIN | DIGIT:
1707 state = GOTONE; byte = new; continue;
1708 case GOTONE | DIGIT:
1709 state = GOTTWO; byte = new + (byte << 4); continue;
1710 default: /* | DELIM */
1711 state = VIRGIN; *cp++ = byte; byte = 0; continue;
1714 *cp++ = byte; /* FALLTHROUGH */
1719 } while (cp < cplim);
1720 sa->sa_len = cp - (char *)sa;
1724 atalk_aton(const char *text, struct at_addr *addr)
1728 if (sscanf(text, "%u.%u", &net, &node) != 2
1729 || net > 0xffff || node > 0xff)
1731 addr->s_net = htons(net);
1732 addr->s_node = node;
1737 atalk_ntoa(struct at_addr at)
1739 static char buf[20];
1741 snprintf(buf, sizeof(buf), "%u.%u", ntohs(at.s_net), at.s_node);