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 1.13 2005/03/16 08:02:05 cpressey 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>
74 struct sockaddr_in sin;
76 struct sockaddr_in6 sin6;
78 struct sockaddr_at sat;
80 struct sockaddr_ns sns;
82 struct sockaddr_dl sdl;
83 struct sockaddr_inarp sinarp;
84 struct sockaddr_storage ss; /* added to avoid memory overrun */
85 } so_dst, so_gate, so_mask, so_genmask, so_ifa, so_ifp;
87 typedef union sockunion *sup;
91 static struct ortentry route;
92 static struct rt_metrics rt_metrics;
93 static int pid, rtm_addrs;
95 static int forcehost, forcenet, af, qflag, tflag;
96 static int iflag, verbose, aflen = sizeof(struct sockaddr_in);
97 static int locking, lockrest, debugonly;
98 static u_long rtm_inits;
101 static short ns_bh[] = {-1,-1,-1};
104 static int atalk_aton(const char *, struct at_addr *);
105 static char *atalk_ntoa(struct at_addr);
106 static void flushroutes(int, char **);
107 static void set_metric(char *, int);
108 static void newroute(int, char **);
109 static void inet_makenetandmask(u_long, struct sockaddr_in *, u_long);
110 static void interfaces(void);
111 static void monitor(void);
112 static void sockaddr(char *, struct sockaddr *);
113 static void sodump(sup, const char *);
114 static void bprintf(FILE *, int, u_char *);
115 static void print_getmsg(struct rt_msghdr *, int);
116 static void print_rtmsg(struct rt_msghdr *, int);
117 static void pmsg_common(struct rt_msghdr *);
118 static void pmsg_addrs(char *, int);
119 static void mask_addr(void);
120 static int getaddr(int, char *, struct hostent **);
121 static int rtmsg(int, int);
122 static int prefixlen(const char *);
124 static int inet6_makenetandmask(struct sockaddr_in6 *, const char *);
128 usage(const char *cp)
131 warnx("bad keyword: %s", cp);
132 fprintf(stderr, "usage: route [-dnqtv] command [[modifiers] args]\n");
138 ((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long))
139 #define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len))
142 main(int argc, char **argv)
149 while ((ch = getopt(argc, argv, "wnqdtv")) != -1)
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[6], rlen, seqno;
222 char *buf, *next, *lim;
223 struct rt_msghdr *rtm;
226 errx(EX_NOPERM, "must be root to alter routing table");
228 shutdown(s, 0); /* Don't want to read back our messages */
231 if (argc == 2 && **argv == '-')
232 switch (keyword(*argv + 1)) {
259 mib[2] = 0; /* protocol */
260 mib[3] = 0; /* wildcard address family */
261 mib[4] = NET_RT_DUMP;
262 mib[5] = 0; /* no flags */
263 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0)
264 err(EX_OSERR, "route-sysctl-estimate");
265 if ((buf = malloc(needed)) == NULL)
266 errx(EX_OSERR, "malloc failed");
267 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0)
268 err(EX_OSERR, "route-sysctl-get");
271 printf("Examining routing table from sysctl\n");
273 for (next = buf; next < lim; next += rtm->rtm_msglen) {
274 rtm = (struct rt_msghdr *)next;
276 print_rtmsg(rtm, rtm->rtm_msglen);
277 if ((rtm->rtm_flags & RTF_GATEWAY) == 0)
280 struct sockaddr *sa = (struct sockaddr *)(rtm + 1);
282 if (sa->sa_family != af)
287 rtm->rtm_type = RTM_DELETE;
288 rtm->rtm_seq = seqno;
289 rlen = write(s, next, rtm->rtm_msglen);
290 if (rlen < (int)rtm->rtm_msglen) {
291 warn("write to routing socket");
292 printf("got only %d for rlen\n", rlen);
299 print_rtmsg(rtm, rlen);
301 struct sockaddr *sa = (struct sockaddr *)(rtm + 1);
303 printf("%-20s ", rtm->rtm_flags & RTF_HOST ?
304 routename(sa) : netname(sa));
306 printf("%-20.20s ", rtm->rtm_flags & RTF_HOST ?
307 routename(sa) : netname(sa));
309 sa = (struct sockaddr *)(ROUNDUP(sa->sa_len) +
312 printf("%-20s ", routename(sa));
314 printf("%-20.20s ", routename(sa));
322 routename(struct sockaddr *sa)
325 static char line[MAXHOSTNAMELEN + 1];
327 static char domain[MAXHOSTNAMELEN + 1];
328 static int first = 1;
332 if (gethostname(domain, MAXHOSTNAMELEN) == 0 &&
333 (cp = strchr(domain, '.'))) {
334 domain[MAXHOSTNAMELEN] = '\0';
335 strcpy(domain, cp + 1);
341 strcpy(line, "default");
342 else switch (sa->sa_family) {
346 in = ((struct sockaddr_in *)sa)->sin_addr;
349 if (in.s_addr == INADDR_ANY || sa->sa_len < 4)
351 if (cp == NULL && !nflag) {
352 hp = gethostbyaddr((char *)&in, sizeof(struct in_addr),
356 cptr = strchr(hp->h_name, '.');
357 if (cptr != NULL && !wflag &&
358 strcmp(cptr + 1, domain) == 0)
364 strncpy(line, cp, sizeof(line) - 1);
365 line[sizeof(line) - 1] = '\0';
367 sprintf(line, "%s", inet_ntoa(in));
374 struct sockaddr_in6 sin6; /* use static var for safety */
376 #ifdef NI_WITHSCOPEID
377 niflags = NI_WITHSCOPEID;
380 memset(&sin6, 0, sizeof(sin6));
381 memcpy(&sin6, sa, sa->sa_len);
382 sin6.sin6_len = sizeof(struct sockaddr_in6);
383 sin6.sin6_family = AF_INET6;
385 if (sa->sa_len == sizeof(struct sockaddr_in6) &&
386 (IN6_IS_ADDR_LINKLOCAL(&sin6.sin6_addr) ||
387 IN6_IS_ADDR_MC_LINKLOCAL(&sin6.sin6_addr)) &&
388 sin6.sin6_scope_id == 0) {
390 ntohs(*(u_int16_t *)&sin6.sin6_addr.s6_addr[2]);
391 sin6.sin6_addr.s6_addr[2] = 0;
392 sin6.sin6_addr.s6_addr[3] = 0;
396 niflags |= NI_NUMERICHOST;
397 if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len,
398 line, sizeof(line), NULL, 0, niflags) != 0)
399 strncpy(line, "invalid", sizeof(line));
406 snprintf(line, sizeof(line), "atalk %s",
407 atalk_ntoa(((struct sockaddr_at *)sa)->sat_addr));
412 return(ns_print((struct sockaddr_ns *)sa));
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));
546 return(ns_print((struct sockaddr_ns *)sa));
551 return(link_ntoa((struct sockaddr_dl *)sa));
557 * Unknown address family; just render the raw
558 * data in sa->sa_data as hex values.
560 uint8_t *sp = (uint8_t *)sa->sa_data;
561 uint8_t *splim = (uint8_t *)sa + sa->sa_len;
562 char *cps = line + sprintf(line, "af %d:", sa->sa_family);
563 char *cpe = line + sizeof(line);
565 while (sp < splim && cps < cpe)
566 cps += snprintf(cps, cpe - cps, " %02x", *sp++);
574 set_metric(char *value, int key)
577 u_long noval, *valp = &noval;
580 #define caseof(x, y, z) case x: valp = &rt_metrics.z; flag = y; break
581 caseof(K_MTU, RTV_MTU, rmx_mtu);
582 caseof(K_HOPCOUNT, RTV_HOPCOUNT, rmx_hopcount);
583 caseof(K_EXPIRE, RTV_EXPIRE, rmx_expire);
584 caseof(K_RECVPIPE, RTV_RPIPE, rmx_recvpipe);
585 caseof(K_SENDPIPE, RTV_SPIPE, rmx_sendpipe);
586 caseof(K_SSTHRESH, RTV_SSTHRESH, rmx_ssthresh);
587 caseof(K_RTT, RTV_RTT, rmx_rtt);
588 caseof(K_RTTVAR, RTV_RTTVAR, rmx_rttvar);
591 if (lockrest || locking)
592 rt_metrics.rmx_locks |= flag;
599 newroute(int argc, char **argv)
602 const char *err_str, *dest = "", *gateway = "";
603 int ishost = 0, proxy = 0, ret, attempts, oerrno, flags = RTF_STATIC;
605 struct hostent *hp = 0;
608 errx(EX_NOPERM, "must be root to alter routing table");
612 shutdown(s, 0); /* Don't want to read back our messages */
614 if (**(++argv)== '-') {
615 switch (key = keyword(1 + *argv)) {
618 aflen = sizeof(struct sockaddr_dl);
622 aflen = sizeof(struct sockaddr_in);
627 aflen = sizeof(struct sockaddr_in6);
632 aflen = sizeof(struct sockaddr_at);
636 aflen = sizeof(union sockunion);
641 aflen = sizeof(struct sockaddr_ns);
649 flags &= ~RTF_STATIC;
667 flags |= RTF_BLACKHOLE;
679 flags |= RTF_CLONING;
682 flags |= RTF_XRESOLVE;
690 getaddr(RTA_IFA, *++argv, 0);
695 getaddr(RTA_IFP, *++argv, 0);
700 getaddr(RTA_GENMASK, *++argv, 0);
705 getaddr(RTA_GATEWAY, *++argv, 0);
710 ishost = getaddr(RTA_DST, *++argv, &hp);
716 getaddr(RTA_NETMASK, *++argv, 0);
724 if (prefixlen(*++argv) == -1) {
742 set_metric(*++argv, key);
748 if ((rtm_addrs & RTA_DST) == 0) {
750 ishost = getaddr(RTA_DST, *argv, &hp);
751 } else if ((rtm_addrs & RTA_GATEWAY) == 0) {
753 getaddr(RTA_GATEWAY, *argv, &hp);
755 getaddr(RTA_NETMASK, *argv, 0);
763 if (af == AF_INET6) {
764 rtm_addrs &= ~RTA_NETMASK;
765 memset((void *)&so_mask, 0, sizeof(so_mask));
775 flags |= RTF_GATEWAY;
777 so_dst.sinarp.sin_other = SIN_PROXY;
778 flags |= RTF_ANNOUNCE;
780 for (attempts = 1; ; attempts++) {
782 if ((ret = rtmsg(*cmd, flags)) == 0)
784 if (errno != ENETUNREACH && errno != ESRCH)
786 if (af == AF_INET && *gateway != '\0' &&
787 hp != NULL && hp->h_addr_list[1] != NULL) {
789 memmove(&so_gate.sin.sin_addr,
791 MIN((size_t)hp->h_length,
792 sizeof(so_gate.sin.sin_addr)));
800 printf("%s %s %s", cmd, ishost? "host" : "net", dest);
801 if (*gateway != '\0') {
802 printf(": gateway %s", gateway);
803 if (attempts > 1 && ret == 0 && af == AF_INET)
805 inet_ntoa(((struct sockaddr_in *)&route.rt_gateway)->sin_addr));
812 err_str = "not in table";
815 err_str = "entry in use";
818 err_str = "routing table overflow";
820 case EDQUOT: /* handle recursion avoidance in
822 err_str = "gateway uses the same route";
825 err_str = strerror(oerrno);
828 printf(": %s\n", err_str);
835 inet_makenetandmask(u_long net, struct sockaddr_in *in, u_long bits)
837 u_long addr, mask = 0;
840 rtm_addrs |= RTA_NETMASK;
843 else if (net < 128) {
844 addr = net << IN_CLASSA_NSHIFT;
845 mask = IN_CLASSA_NET;
846 } else if (net < 65536) {
847 addr = net << IN_CLASSB_NSHIFT;
848 mask = IN_CLASSB_NET;
849 } else if (net < 16777216L) {
850 addr = net << IN_CLASSC_NSHIFT;
851 mask = IN_CLASSC_NET;
854 if ((addr & IN_CLASSA_HOST) == 0)
855 mask = IN_CLASSA_NET;
856 else if ((addr & IN_CLASSB_HOST) == 0)
857 mask = IN_CLASSB_NET;
858 else if ((addr & IN_CLASSC_HOST) == 0)
859 mask = IN_CLASSC_NET;
864 mask = 0xffffffff << (32 - bits);
865 in->sin_addr.s_addr = htonl(addr);
867 in->sin_addr.s_addr = htonl(mask);
870 cp = (char *)(&in->sin_addr + 1);
871 while (*--cp == 0 && cp > (char *)in)
873 in->sin_len = 1 + cp - (char *)in;
878 * XXX the function may need more improvement...
881 inet6_makenetandmask(struct sockaddr_in6 *sin6, const char *plen)
886 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr) &&
887 sin6->sin6_scope_id == 0) {
889 } else if ((sin6->sin6_addr.s6_addr[0] & 0xe0) == 0x20) {
890 /* aggregatable global unicast - RFC2374 */
891 memset(&in6, 0, sizeof(in6));
892 if (memcmp(&sin6->sin6_addr.s6_addr[8],
893 &in6.s6_addr[8], 8) == 0)
898 if (plen == NULL || strcmp(plen, "128") == 0)
900 rtm_addrs |= RTA_NETMASK;
907 * Interpret an argument as a network address of some kind,
908 * returning 1 if a host address, 0 if a network address.
911 getaddr(int which, char *str, struct hostent **hpp)
918 int afamily; /* local copy of af so we can change it */
922 aflen = sizeof(struct sockaddr_in);
933 struct ifaddrs *ifap, *ifa;
934 struct sockaddr_dl *sdl = NULL;
936 if (getifaddrs(&ifap))
937 err(1, "getifaddrs");
939 for (ifa = ifap; ifa != NULL; ifa = ifa->ifa_next) {
940 if (ifa->ifa_addr->sa_family != AF_LINK)
943 if (strcmp(str, ifa->ifa_name) != 0)
946 sdl = (struct sockaddr_dl *)ifa->ifa_addr;
948 /* If we found it, then use it */
951 * Copy is safe since we have a
952 * sockaddr_storage member in sockunion{}.
953 * Note that we need to copy before calling
956 * Interface routes are routed only by their
957 * sdl_index or interface name (we provide
958 * both here), not by the ARP address of the
959 * local interface (alen, slen = 0).
961 memcpy(&su->sdl, sdl, sdl->sdl_len);
962 su->sdl.sdl_alen = 0;
963 su->sdl.sdl_slen = 0;
984 usage("internal error");
987 su->sa.sa_len = aflen;
988 su->sa.sa_family = afamily; /* cases that don't want it have left
990 if (strcmp(str, "default") == 0) {
992 * Default is net 0.0.0.0/0
997 /* bzero(su, sizeof(*su)); *//* for readability */
998 getaddr(RTA_NETMASK, str, 0);
1002 /* bzero(su, sizeof(*su)); *//* for readability */
1011 struct addrinfo hints, *res;
1014 if (which == RTA_DST && (q = strchr(str, '/')) != NULL)
1016 memset(&hints, 0, sizeof(hints));
1017 hints.ai_family = afamily; /*AF_INET6*/
1018 hints.ai_flags = AI_NUMERICHOST;
1019 hints.ai_socktype = SOCK_DGRAM; /*dummy*/
1020 if (getaddrinfo(str, "0", &hints, &res) != 0 ||
1021 res->ai_family != AF_INET6 ||
1022 res->ai_addrlen != sizeof(su->sin6)) {
1023 fprintf(stderr, "%s: bad value\n", str);
1026 memcpy(&su->sin6, res->ai_addr, sizeof(su->sin6));
1028 if ((IN6_IS_ADDR_LINKLOCAL(&su->sin6.sin6_addr) ||
1029 IN6_IS_ADDR_LINKLOCAL(&su->sin6.sin6_addr)) &&
1030 su->sin6.sin6_scope_id) {
1031 *(u_int16_t *)&su->sin6.sin6_addr.s6_addr[2] =
1032 htons(su->sin6.sin6_scope_id);
1033 su->sin6.sin6_scope_id = 0;
1039 if (which == RTA_DST)
1040 return(inet6_makenetandmask(&su->sin6, q));
1047 if (which == RTA_DST) {
1048 struct sockaddr_ns *sms = &(so_mask.sns);
1049 memset(sms, 0, sizeof(*sms));
1050 sms->sns_family = 0;
1052 sms->sns_addr.x_net = *(union ns_net *)ns_bh;
1053 rtm_addrs |= RTA_NETMASK;
1055 su->sns.sns_addr = ns_addr(str);
1056 return(!ns_nullhost(su->sns.sns_addr));
1061 if (!atalk_aton(str, &su->sat.sat_addr))
1062 errx(EX_NOHOST, "bad address: %s", str);
1063 rtm_addrs |= RTA_NETMASK;
1064 return(forcehost || su->sat.sat_addr.s_node != 0);
1067 link_addr(str, &su->sdl);
1072 su->sa.sa_len = sizeof(*su);
1073 sockaddr(str, &su->sa);
1085 q = strchr(str,'/');
1086 if (q != NULL && which == RTA_DST) {
1088 if ((val = inet_network(str)) != INADDR_NONE) {
1089 inet_makenetandmask(
1090 val, &su->sin, strtoul(q+1, 0, 0));
1095 if ((which != RTA_DST || forcenet == 0) &&
1096 inet_aton(str, &su->sin.sin_addr)) {
1097 val = su->sin.sin_addr.s_addr;
1098 if (which != RTA_DST ||
1099 inet_lnaof(su->sin.sin_addr) != INADDR_ANY)
1106 if (which == RTA_DST && forcehost == 0 &&
1107 ((val = inet_network(str)) != INADDR_NONE ||
1108 ((np = getnetbyname(str)) != NULL && (val = np->n_net) != 0))) {
1110 inet_makenetandmask(val, &su->sin, 0);
1113 hp = gethostbyname(str);
1116 su->sin.sin_family = hp->h_addrtype;
1117 memmove((char *)&su->sin.sin_addr, hp->h_addr,
1118 MIN((size_t)hp->h_length, sizeof(su->sin.sin_addr)));
1121 errx(EX_NOHOST, "bad address: %s", str);
1125 prefixlen(const char *len_str)
1127 int len = atoi(len_str), q, r;
1131 rtm_addrs |= RTA_NETMASK;
1136 p = (char *)&so_mask.sin6.sin6_addr;
1141 p = (char *)&so_mask.sin.sin_addr;
1144 fprintf(stderr, "prefixlen not supported in this af\n");
1149 if (len < 0 || max < len) {
1150 fprintf(stderr, "%s: bad value\n", len_str);
1156 so_mask.sa.sa_family = af;
1157 so_mask.sa.sa_len = aflen;
1158 memset((void *)p, 0, max / 8);
1160 memset((void *)p, 0xff, q);
1162 *((u_char *)p + q) = (0xff00 >> r) & 0xff;
1170 short ns_nullh[] = {0,0,0};
1173 ns_print(struct sockaddr_ns *sns)
1175 struct ns_addr work;
1176 union { union ns_net net_e; u_long long_e; } net;
1178 static char mybuf[50+MAXHOSTNAMELEN], cport[10], chost[25];
1179 const char *host = "";
1183 work = sns->sns_addr;
1184 port = ntohs(work.x_port);
1186 net.net_e = work.x_net;
1187 if (ns_nullhost(work) && net.long_e == 0) {
1189 strncpy(mybuf, "*.*", sizeof(mybuf));
1191 sprintf(mybuf, "*.%XH", port);
1195 if (memcmp(ns_bh, work.x_host.c_host, 6) == 0)
1197 else if (memcmp(ns_nullh, work.x_host.c_host, 6) == 0)
1200 q = work.x_host.c_host;
1201 sprintf(chost, "%02X%02X%02X%02X%02X%02XH",
1202 q[0], q[1], q[2], q[3], q[4], q[5]);
1203 for (p = chost; *p == '0' && p < chost + 12; p++)
1208 sprintf(cport, ".%XH", htons(port));
1212 snprintf(mybuf, sizeof(mybuf), "%lxH.%s%s",
1213 (unsigned long)ntohl(net.long_e),
1224 char *buf, *lim, *next;
1225 struct rt_msghdr *rtm;
1229 mib[2] = 0; /* protocol */
1230 mib[3] = 0; /* wildcard address family */
1231 mib[4] = NET_RT_IFLIST;
1232 mib[5] = 0; /* no flags */
1233 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0)
1234 err(EX_OSERR, "route-sysctl-estimate");
1235 if ((buf = malloc(needed)) == NULL)
1236 errx(EX_OSERR, "malloc failed");
1237 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0)
1238 err(EX_OSERR, "actual retrieval of interface table");
1240 for (next = buf; next < lim; next += rtm->rtm_msglen) {
1241 rtm = (struct rt_msghdr *)next;
1242 print_rtmsg(rtm, rtm->rtm_msglen);
1259 n = read(s, msg, 2048);
1261 printf("\ngot message of size %d on %s", n, ctime(&now));
1262 print_rtmsg((struct rt_msghdr *)msg, n);
1267 struct rt_msghdr m_rtm;
1272 rtmsg(int cmd, int flags)
1276 char *cp = m_rtmsg.m_space;
1279 #define NEXTADDR(w, u) \
1280 if (rtm_addrs & (w)) {\
1281 l = ROUNDUP(u.sa.sa_len); memmove(cp, &(u), l); cp += l;\
1282 if (verbose) sodump(&(u),"u");\
1286 memset(&m_rtmsg, 0, sizeof(m_rtmsg));
1289 else if (cmd == 'c')
1291 else if (cmd == 'g') {
1293 if (so_ifp.sa.sa_family == 0) {
1294 so_ifp.sa.sa_family = AF_LINK;
1295 so_ifp.sa.sa_len = sizeof(struct sockaddr_dl);
1296 rtm_addrs |= RTA_IFP;
1300 #define rtm m_rtmsg.m_rtm
1302 rtm.rtm_flags = flags;
1303 rtm.rtm_version = RTM_VERSION;
1304 rtm.rtm_seq = ++seq;
1305 rtm.rtm_addrs = rtm_addrs;
1306 rtm.rtm_rmx = rt_metrics;
1307 rtm.rtm_inits = rtm_inits;
1309 if (rtm_addrs & RTA_NETMASK)
1311 NEXTADDR(RTA_DST, so_dst);
1312 NEXTADDR(RTA_GATEWAY, so_gate);
1313 NEXTADDR(RTA_NETMASK, so_mask);
1314 NEXTADDR(RTA_GENMASK, so_genmask);
1315 NEXTADDR(RTA_IFP, so_ifp);
1316 NEXTADDR(RTA_IFA, so_ifa);
1317 rtm.rtm_msglen = l = cp - (char *)&m_rtmsg;
1319 print_rtmsg(&rtm, l);
1322 if ((rlen = write(s, (char *)&m_rtmsg, l)) < 0) {
1323 warn("writing to routing socket");
1326 if (cmd == RTM_GET) {
1328 l = read(s, (char *)&m_rtmsg, sizeof(m_rtmsg));
1329 } while (l > 0 && (rtm.rtm_seq != seq || rtm.rtm_pid != pid));
1331 warn("read from routing socket");
1333 print_getmsg(&rtm, l);
1342 int olen = so_mask.sa.sa_len;
1343 char *cp1 = olen + (char *)&so_mask, *cp2;
1345 for (so_mask.sa.sa_len = 0; cp1 > (char *)&so_mask; )
1347 so_mask.sa.sa_len = 1 + cp1 - (char *)&so_mask;
1350 if ((rtm_addrs & RTA_DST) == 0)
1352 switch (so_dst.sa.sa_family) {
1364 cp1 = so_mask.sa.sa_len + 1 + (char *)&so_dst;
1365 cp2 = so_dst.sa.sa_len + 1 + (char *)&so_dst;
1368 cp2 = so_mask.sa.sa_len + 1 + (char *)&so_mask;
1369 while (cp1 > so_dst.sa.sa_data)
1373 const char *msgtypes[] = {
1375 "RTM_ADD: Add Route",
1376 "RTM_DELETE: Delete Route",
1377 "RTM_CHANGE: Change Metrics or flags",
1378 "RTM_GET: Report Metrics",
1379 "RTM_LOSING: Kernel Suspects Partitioning",
1380 "RTM_REDIRECT: Told to use different route",
1381 "RTM_MISS: Lookup failed on this address",
1382 "RTM_LOCK: fix specified metrics",
1383 "RTM_OLDADD: caused by SIOCADDRT",
1384 "RTM_OLDDEL: caused by SIOCDELRT",
1385 "RTM_RESOLVE: Route created by cloning",
1386 "RTM_NEWADDR: address being added to iface",
1387 "RTM_DELADDR: address being removed from iface",
1388 "RTM_IFINFO: iface status change",
1389 "RTM_NEWMADDR: new multicast group membership on iface",
1390 "RTM_DELMADDR: multicast group membership removed from iface",
1391 "RTM_IFANNOUNCE: interface arrival/departure",
1395 char metricnames[] =
1396 "\011pksent\010rttvar\7rtt\6ssthresh\5sendpipe\4recvpipe\3expire\2hopcount"
1399 "\1UP\2GATEWAY\3HOST\4REJECT\5DYNAMIC\6MODIFIED\7DONE\010MASK_PRESENT"
1400 "\011CLONING\012XRESOLVE\013LLINFO\014STATIC\015BLACKHOLE\016b016"
1401 "\017PROTO2\020PROTO1\021PRCLONING\022WASCLONED\023PROTO3\024CHAINDELETE"
1402 "\025PINNED\026LOCAL\027BROADCAST\030MULTICAST";
1404 "\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5PTP\6b6\7RUNNING\010NOARP"
1405 "\011PPROMISC\012ALLMULTI\013OACTIVE\014SIMPLEX\015LINK0\016LINK1"
1406 "\017LINK2\020MULTICAST";
1408 "\1DST\2GATEWAY\3NETMASK\4GENMASK\5IFP\6IFA\7AUTHOR\010BRD";
1411 print_rtmsg(struct rt_msghdr *rtm, int msglen __unused)
1413 struct if_msghdr *ifm;
1414 struct ifa_msghdr *ifam;
1416 struct ifma_msghdr *ifmam;
1418 struct if_announcemsghdr *ifan;
1422 if (rtm->rtm_version != RTM_VERSION) {
1423 printf("routing message version %d not understood\n",
1427 if (msgtypes[rtm->rtm_type] != NULL)
1428 printf("%s: ", msgtypes[rtm->rtm_type]);
1430 printf("#%d: ", rtm->rtm_type);
1431 printf("len %d, ", rtm->rtm_msglen);
1432 switch (rtm->rtm_type) {
1434 ifm = (struct if_msghdr *)rtm;
1435 printf("if# %d, flags:", ifm->ifm_index);
1436 bprintf(stdout, ifm->ifm_flags, ifnetflags);
1437 pmsg_addrs((char *)(ifm + 1), ifm->ifm_addrs);
1441 ifam = (struct ifa_msghdr *)rtm;
1442 printf("metric %d, flags:", ifam->ifam_metric);
1443 bprintf(stdout, ifam->ifam_flags, routeflags);
1444 pmsg_addrs((char *)(ifam + 1), ifam->ifam_addrs);
1449 ifmam = (struct ifma_msghdr *)rtm;
1450 pmsg_addrs((char *)(ifmam + 1), ifmam->ifmam_addrs);
1453 case RTM_IFANNOUNCE:
1454 ifan = (struct if_announcemsghdr *)rtm;
1455 printf("if# %d, what: ", ifan->ifan_index);
1456 switch (ifan->ifan_what) {
1460 case IFAN_DEPARTURE:
1461 printf("departure");
1464 printf("#%d", ifan->ifan_what);
1471 printf("pid: %ld, seq %d, errno %d, flags:",
1472 (long)rtm->rtm_pid, rtm->rtm_seq, rtm->rtm_errno);
1473 bprintf(stdout, rtm->rtm_flags, routeflags);
1479 print_getmsg(struct rt_msghdr *rtm, int msglen)
1481 struct sockaddr *dst = NULL, *gate = NULL, *mask = NULL;
1482 struct sockaddr_dl *ifp = NULL;
1483 struct sockaddr *sa;
1487 printf(" route to: %s\n", routename(&so_dst.sa));
1488 if (rtm->rtm_version != RTM_VERSION) {
1489 warnx("routing message version %d not understood",
1493 if (rtm->rtm_msglen > msglen) {
1494 warnx("message length mismatch, in packet %d, returned %d",
1495 rtm->rtm_msglen, msglen);
1497 if (rtm->rtm_errno != 0) {
1498 errno = rtm->rtm_errno;
1499 warn("message indicates error %d", errno);
1502 cp = ((char *)(rtm + 1));
1504 for (i = 1; i != 0; i <<= 1)
1505 if (i & rtm->rtm_addrs) {
1506 sa = (struct sockaddr *)cp;
1518 if (sa->sa_family == AF_LINK &&
1519 ((struct sockaddr_dl *)sa)->sdl_nlen)
1520 ifp = (struct sockaddr_dl *)sa;
1525 if (dst != NULL && mask != NULL)
1526 mask->sa_family = dst->sa_family; /* XXX */
1528 printf("destination: %s\n", routename(dst));
1530 int savenflag = nflag;
1533 printf(" mask: %s\n", routename(mask));
1536 if (gate != NULL && rtm->rtm_flags & RTF_GATEWAY)
1537 printf(" gateway: %s\n", routename(gate));
1539 printf(" interface: %.*s\n",
1540 ifp->sdl_nlen, ifp->sdl_data);
1542 bprintf(stdout, rtm->rtm_flags, routeflags);
1544 #define lock(f) ((rtm->rtm_rmx.rmx_locks & __CONCAT(RTV_,f)) ? 'L' : ' ')
1545 #define msec(u) (((u) + 500) / 1000) /* usec to msec */
1548 recvpipe sendpipe ssthresh rtt,msec rttvar hopcount mtu expire");
1549 printf("%8ld%c ", rtm->rtm_rmx.rmx_recvpipe, lock(RPIPE));
1550 printf("%8ld%c ", rtm->rtm_rmx.rmx_sendpipe, lock(SPIPE));
1551 printf("%8ld%c ", rtm->rtm_rmx.rmx_ssthresh, lock(SSTHRESH));
1552 printf("%8ld%c ", msec(rtm->rtm_rmx.rmx_rtt), lock(RTT));
1553 printf("%8ld%c ", msec(rtm->rtm_rmx.rmx_rttvar), lock(RTTVAR));
1554 printf("%8ld%c ", rtm->rtm_rmx.rmx_hopcount, lock(HOPCOUNT));
1555 printf("%8ld%c ", rtm->rtm_rmx.rmx_mtu, lock(MTU));
1556 if (rtm->rtm_rmx.rmx_expire != 0)
1557 rtm->rtm_rmx.rmx_expire -= time(0);
1558 printf("%8ld%c\n", rtm->rtm_rmx.rmx_expire, lock(EXPIRE));
1561 #define RTA_IGN (RTA_DST|RTA_GATEWAY|RTA_NETMASK|RTA_IFP|RTA_IFA|RTA_BRD)
1564 else if (rtm->rtm_addrs &~ RTA_IGN) {
1565 printf("sockaddrs: ");
1566 bprintf(stdout, rtm->rtm_addrs, addrnames);
1573 pmsg_common(struct rt_msghdr *rtm)
1575 printf("\nlocks: ");
1576 bprintf(stdout, rtm->rtm_rmx.rmx_locks, metricnames);
1578 bprintf(stdout, rtm->rtm_inits, metricnames);
1579 pmsg_addrs(((char *)(rtm + 1)), rtm->rtm_addrs);
1583 pmsg_addrs(char *cp, int addrs)
1585 struct sockaddr *sa;
1592 printf("\nsockaddrs: ");
1593 bprintf(stdout, addrs, addrnames);
1595 for (i = 1; i != 0; i <<= 1)
1597 sa = (struct sockaddr *)cp;
1598 printf(" %s", routename(sa));
1606 bprintf(FILE *fp, int b, u_char *str)
1613 while ((i = *str++) != 0) {
1614 if (b & (1 << (i-1))) {
1621 for (; (i = *str) > 32; str++)
1632 keyword(const char *cp)
1634 struct keytab *kt = keywords;
1636 while (kt->kt_cp != NULL && strcmp(kt->kt_cp, cp) != 0)
1642 sodump(sup su, const char *which)
1644 switch (su->sa.sa_family) {
1646 printf("%s: link %s; ",
1647 which, link_ntoa(&su->sdl));
1650 printf("%s: inet %s; ",
1651 which, inet_ntoa(su->sin.sin_addr));
1654 printf("%s: atalk %s; ",
1655 which, atalk_ntoa(su->sat.sat_addr));
1659 printf("%s: xns %s; ",
1660 which, ns_ntoa(su->sns.sns_addr));
1677 sockaddr(char *addr, struct sockaddr *sa)
1679 char *cp = (char *)sa;
1680 int size = sa->sa_len;
1681 char *cplim = cp + size;
1682 int byte = 0, state = VIRGIN, new = 0 /* foil gcc */;
1684 memset(cp, 0, size);
1687 if ((*addr >= '0') && (*addr <= '9')) {
1689 } else if ((*addr >= 'a') && (*addr <= 'f')) {
1690 new = *addr - 'a' + 10;
1691 } else if ((*addr >= 'A') && (*addr <= 'F')) {
1692 new = *addr - 'A' + 10;
1693 } else if (*addr == '\0')
1698 switch (state /* | INPUT */) {
1699 case GOTTWO | DIGIT:
1700 *cp++ = byte; /*FALLTHROUGH*/
1701 case VIRGIN | DIGIT:
1702 state = GOTONE; byte = new; continue;
1703 case GOTONE | DIGIT:
1704 state = GOTTWO; byte = new + (byte << 4); continue;
1705 default: /* | DELIM */
1706 state = VIRGIN; *cp++ = byte; byte = 0; continue;
1709 *cp++ = byte; /* FALLTHROUGH */
1714 } while (cp < cplim);
1715 sa->sa_len = cp - (char *)sa;
1719 atalk_aton(const char *text, struct at_addr *addr)
1723 if (sscanf(text, "%u.%u", &net, &node) != 2
1724 || net > 0xffff || node > 0xff)
1726 addr->s_net = htons(net);
1727 addr->s_node = node;
1732 atalk_ntoa(struct at_addr at)
1734 static char buf[20];
1736 snprintf(buf, sizeof(buf), "%u.%u", ntohs(at.s_net), at.s_node);