2 * Copyright (C) 2011 Hiroki Sato <hrs@FreeBSD.org>
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.
14 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS
18 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
19 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
20 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
21 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
22 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
23 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
24 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 * $FreeBSD: stable/10/usr.sbin/rtadvctl/rtadvctl.c 253970 2013-08-05 20:13:02Z hrs $
30 #include <sys/queue.h>
31 #include <sys/types.h>
32 #include <sys/socket.h>
37 #include <net/if_dl.h>
38 #include <net/if_types.h>
39 #include <net/if_var.h>
40 #include <net/ethernet.h>
41 #include <netinet/in.h>
42 #include <netinet/ip6.h>
43 #include <netinet/icmp6.h>
44 #include <netinet6/in6_var.h>
45 #include <netinet6/nd6.h>
46 #include <arpa/inet.h>
61 #include "pathnames.h"
64 #include "timer_subr.h"
67 #include "control_client.h"
69 #define RA_IFSTATUS_INACTIVE 0
70 #define RA_IFSTATUS_RA_RECV 1
71 #define RA_IFSTATUS_RA_SEND 2
73 static int vflag = LOG_ERR;
75 static void usage(void);
77 static int action_propset(char *);
78 static int action_propget(char *, struct ctrl_msg_pl *);
79 static int action_plgeneric(int, char *, char *);
81 static int action_enable(int, char **);
82 static int action_disable(int, char **);
83 static int action_reload(int, char **);
84 static int action_echo(int, char **);
85 static int action_version(int, char **);
86 static int action_shutdown(int, char **);
88 static int action_show(int, char **);
89 static int action_show_prefix(struct prefix *);
90 static int action_show_rtinfo(struct rtinfo *);
91 static int action_show_rdnss(void *);
92 static int action_show_dnssl(void *);
94 static int csock_client_open(struct sockinfo *);
95 static size_t dname_labeldec(char *, size_t, const char *);
96 static void mysyslog(int, const char *, ...);
98 static const char *rtpref_str[] = {
105 static struct dispatch_table {
107 int (*dt_act)(int, char **);
109 { "show", action_show },
110 { "reload", action_reload },
111 { "shutdown", action_shutdown },
112 { "enable", action_enable },
113 { "disable", action_disable },
115 { "echo", action_echo },
116 { "version", action_version },
120 static char errmsgbuf[1024];
121 static char *errmsg = NULL;
124 mysyslog(int priority, const char * restrict fmt, ...)
128 if (vflag >= priority) {
130 vfprintf(stderr, fmt, ap);
131 fprintf(stderr, "\n");
141 for (i = 0; (size_t)i < sizeof(dtable)/sizeof(dtable[0]); i++) {
142 if (dtable[i].dt_comm == NULL)
144 printf("%s\n", dtable[i].dt_comm);
151 main(int argc, char *argv[])
155 int (*action)(int, char **) = NULL;
158 while ((ch = getopt(argc, argv, "Dv")) != -1) {
176 for (i = 0; (size_t)i < sizeof(dtable)/sizeof(dtable[0]); i++) {
177 if (dtable[i].dt_comm == NULL ||
178 strcmp(dtable[i].dt_comm, argv[0]) == 0) {
179 action = dtable[i].dt_act;
187 error = (dtable[i].dt_act)(--argc, ++argv);
189 fprintf(stderr, "%s failed", dtable[i].dt_comm);
191 fprintf(stderr, ": %s", errmsg);
192 fprintf(stderr, ".\n");
199 csock_client_open(struct sockinfo *s)
201 struct sockaddr_un sun;
203 if ((s->si_fd = socket(PF_UNIX, SOCK_STREAM, 0)) == -1)
204 err(1, "cannot open control socket.");
206 memset(&sun, 0, sizeof(sun));
207 sun.sun_family = AF_UNIX;
208 sun.sun_len = sizeof(sun);
209 strlcpy(sun.sun_path, s->si_name, sizeof(sun.sun_path));
211 if (connect(s->si_fd, (struct sockaddr *)&sun, sizeof(sun)) == -1)
212 err(1, "connect: %s", s->si_name);
215 "<%s> connected to %s", __func__, sun.sun_path);
221 action_plgeneric(int action, char *plstr, char *buf)
223 struct ctrl_msg_hdr *cm;
224 struct ctrl_msg_pl cp;
231 csock_client_open(s);
233 cm = (struct ctrl_msg_hdr *)buf;
234 msg = (char *)buf + sizeof(*cm);
236 cm->cm_version = CM_VERSION;
237 cm->cm_type = action;
238 cm->cm_len = sizeof(*cm);
241 memset(&cp, 0, sizeof(cp));
242 p = strchr(plstr, ':');
243 q = strchr(plstr, '=');
244 if (p != NULL && q != NULL && p > q)
247 if (p == NULL) { /* No : */
250 } else if (p == plstr) { /* empty */
252 cp.cp_key = plstr + 1;
255 cp.cp_ifname = plstr;
264 cm->cm_len += cm_pl2bin(msg, &cp);
266 mysyslog(LOG_DEBUG, "<%s> key=%s, val_len=%d, ifname=%s",
267 __func__,cp.cp_key, cp.cp_val_len, cp.cp_ifname);
270 return (cm_handler_client(s->si_fd, CM_STATE_MSG_DISPATCH, buf));
274 action_propget(char *argv, struct ctrl_msg_pl *cp)
277 struct ctrl_msg_hdr *cm;
278 char buf[CM_MSG_MAXLEN];
281 memset(cp, 0, sizeof(*cp));
282 cm = (struct ctrl_msg_hdr *)buf;
283 msg = (char *)buf + sizeof(*cm);
285 error = action_plgeneric(CM_TYPE_REQ_GET_PROP, argv, buf);
286 if (error || cm->cm_len <= sizeof(*cm))
290 mysyslog(LOG_DEBUG, "<%s> type=%d, len=%d",
291 __func__, cm->cm_type, cm->cm_len);
292 mysyslog(LOG_DEBUG, "<%s> key=%s, val_len=%d, ifname=%s",
293 __func__,cp->cp_key, cp->cp_val_len, cp->cp_ifname);
299 action_propset(char *argv)
301 char buf[CM_MSG_MAXLEN];
303 return (action_plgeneric(CM_TYPE_REQ_SET_PROP, argv, buf));
307 action_disable(int argc, char **argv)
310 char argv_disable[IFNAMSIZ + sizeof(":disable=")];
318 for (i = 0; i < argc; i++) {
319 sprintf(argv_disable, "%s:disable=", argv[i]);
320 action_argv = argv_disable;
321 error += action_propset(action_argv);
328 action_enable(int argc, char **argv)
331 char argv_enable[IFNAMSIZ + sizeof(":enable=")];
339 for (i = 0; i < argc; i++) {
340 sprintf(argv_enable, "%s:enable=", argv[i]);
341 action_argv = argv_enable;
342 error += action_propset(action_argv);
349 action_reload(int argc, char **argv)
352 char argv_reload[IFNAMSIZ + sizeof(":reload=")];
357 action_argv = strdup(":reload=");
358 return (action_propset(action_argv));
362 for (i = 0; i < argc; i++) {
363 sprintf(argv_reload, "%s:reload=", argv[i]);
364 action_argv = argv_reload;
365 error += action_propset(action_argv);
372 action_echo(int argc __unused, char **argv __unused)
376 action_argv = strdup("echo");
377 return (action_propset(action_argv));
381 action_shutdown(int argc __unused, char **argv __unused)
385 action_argv = strdup("shutdown");
386 return (action_propset(action_argv));
391 action_version(int argc __unused, char **argv __unused)
394 struct ctrl_msg_pl cp;
397 action_argv = strdup(":version=");
398 error = action_propget(action_argv, &cp);
402 printf("version=%s\n", cp.cp_val);
407 action_show(int argc, char **argv)
410 char argv_ifilist[sizeof(":ifilist=")] = ":ifilist=";
411 char argv_ifi[IFNAMSIZ + sizeof(":ifi=")];
412 char argv_rai[IFNAMSIZ + sizeof(":rai=")];
413 char argv_rti[IFNAMSIZ + sizeof(":rti=")];
414 char argv_pfx[IFNAMSIZ + sizeof(":pfx=")];
415 char argv_ifi_ra_timer[IFNAMSIZ + sizeof(":ifi_ra_timer=")];
416 char argv_rdnss[IFNAMSIZ + sizeof(":rdnss=")];
417 char argv_dnssl[IFNAMSIZ + sizeof(":dnssl=")];
418 char ssbuf[SSBUFLEN];
420 struct timespec now, ts0, ts;
421 struct ctrl_msg_pl cp;
423 TAILQ_HEAD(, ifinfo) ifl = TAILQ_HEAD_INITIALIZER(ifl);
431 action_argv = argv_ifilist;
432 error = action_propget(action_argv, &cp);
437 endp = p + cp.cp_val_len;
439 ifi = malloc(sizeof(*ifi));
442 memset(ifi, 0, sizeof(*ifi));
444 strcpy(ifi->ifi_ifname, p);
445 ifi->ifi_ifindex = if_nametoindex(ifi->ifi_ifname);
446 TAILQ_INSERT_TAIL(&ifl, ifi, ifi_next);
447 p += strlen(ifi->ifi_ifname) + 1;
450 for (i = 0; i < argc; i++) {
451 ifi = malloc(sizeof(*ifi));
454 memset(ifi, 0, sizeof(*ifi));
456 strcpy(ifi->ifi_ifname, argv[i]);
457 ifi->ifi_ifindex = if_nametoindex(ifi->ifi_ifname);
458 if (ifi->ifi_ifindex == 0) {
459 sprintf(errmsgbuf, "invalid interface %s",
465 TAILQ_INSERT_TAIL(&ifl, ifi, ifi_next);
469 clock_gettime(CLOCK_REALTIME_FAST, &now);
470 clock_gettime(CLOCK_MONOTONIC_FAST, &ts);
471 TS_SUB(&now, &ts, &ts0);
473 TAILQ_FOREACH(ifi, &ifl, ifi_next) {
474 struct ifinfo *ifi_s;
475 struct rtadvd_timer *rat;
482 sprintf(argv_ifi, "%s:ifi=", ifi->ifi_ifname);
483 action_argv = argv_ifi;
484 error = action_propget(action_argv, &cp);
487 ifi_s = (struct ifinfo *)cp.cp_val;
489 if (!(ifi_s->ifi_persist) && vflag < LOG_NOTICE)
492 printf("%s: flags=<", ifi->ifi_ifname);
495 if (ifi_s->ifi_ifindex == 0)
496 c += printf("NONEXISTENT");
498 c += printf("%s", (ifi_s->ifi_flags & IFF_UP) ?
500 switch (ifi_s->ifi_state) {
501 case IFI_STATE_CONFIGURED:
502 c += printf("%s%s", (c) ? "," : "", "CONFIGURED");
504 case IFI_STATE_TRANSITIVE:
505 c += printf("%s%s", (c) ? "," : "", "TRANSITIVE");
508 if (ifi_s->ifi_persist)
509 c += printf("%s%s", (c) ? "," : "", "PERSIST");
512 ra_ifstatus = RA_IFSTATUS_INACTIVE;
513 if ((ifi_s->ifi_flags & IFF_UP) &&
514 ((ifi_s->ifi_state == IFI_STATE_CONFIGURED) ||
515 (ifi_s->ifi_state == IFI_STATE_TRANSITIVE))) {
517 * RA_RECV: ND6_IFF_ACCEPT_RTADV
518 * RA_SEND: ip6.forwarding
520 if (ifi_s->ifi_nd_flags & ND6_IFF_ACCEPT_RTADV)
521 ra_ifstatus = RA_IFSTATUS_RA_RECV;
522 else if (getinet6sysctl(IPV6CTL_FORWARDING))
523 ra_ifstatus = RA_IFSTATUS_RA_SEND;
525 ra_ifstatus = RA_IFSTATUS_INACTIVE;
530 if (ra_ifstatus == RA_IFSTATUS_INACTIVE)
531 printf("%s%s", (c) ? "," : "", "INACTIVE");
532 else if (ra_ifstatus == RA_IFSTATUS_RA_RECV)
533 printf("%s%s", (c) ? "," : "", "RA_RECV");
534 else if (ra_ifstatus == RA_IFSTATUS_RA_SEND)
535 printf("%s%s", (c) ? "," : "", "RA_SEND");
538 switch (ifi_s->ifi_state) {
539 case IFI_STATE_CONFIGURED:
540 case IFI_STATE_TRANSITIVE:
547 printf("mtu %d\n", ifi_s->ifi_phymtu);
549 sprintf(argv_rai, "%s:rai=", ifi->ifi_ifname);
550 action_argv = argv_rai;
552 error = action_propget(action_argv, &cp);
556 rai = (struct rainfo *)cp.cp_val;
558 printf("\tDefaultLifetime: %s",
559 sec2str(rai->rai_lifetime, ssbuf));
560 if (ra_ifstatus != RA_IFSTATUS_RA_SEND &&
561 rai->rai_lifetime == 0)
562 printf(" (RAs will be sent with zero lifetime)");
566 printf("\tMinAdvInterval/MaxAdvInterval: ");
567 printf("%s/", sec2str(rai->rai_mininterval, ssbuf));
568 printf("%s\n", sec2str(rai->rai_maxinterval, ssbuf));
569 if (rai->rai_linkmtu)
570 printf("\tAdvLinkMTU: %d", rai->rai_linkmtu);
572 printf("\tAdvLinkMTU: <none>");
577 if (rai->rai_managedflg || rai->rai_otherflg) {
578 printf("%s", rai->rai_managedflg ? "M" : "");
579 printf("%s", rai->rai_otherflg ? "O" : "");
585 printf("Preference: %s\n",
586 rtpref_str[(rai->rai_rtpref >> 3) & 0xff]);
588 printf("\tReachableTime: %s, ",
589 sec2str(rai->rai_reachabletime, ssbuf));
590 printf("RetransTimer: %s, "
592 sec2str(rai->rai_retranstimer, ssbuf),
594 printf("\tAdvIfPrefixes: %s\n",
595 rai->rai_advifprefix ? "yes" : "no");
599 if (ifi_s->ifi_ra_timer != NULL) {
600 sprintf(argv_ifi_ra_timer, "%s:ifi_ra_timer=",
602 action_argv = argv_ifi_ra_timer;
604 error = action_propget(action_argv, &cp);
608 rat = (struct rtadvd_timer *)cp.cp_val;
610 printf("\tNext RA send: ");
614 ts.tv_sec = rat->rat_tm.tv_sec + ts0.tv_sec;
615 printf("%s", ctime(&ts.tv_sec));
617 printf("\tLast RA send: ");
618 if (ifi_s->ifi_ra_lastsent.tv_sec == 0)
621 ts.tv_sec = ifi_s->ifi_ra_lastsent.tv_sec + ts0.tv_sec;
622 printf("%s", ctime(&ts.tv_sec));
624 if (rai->rai_clockskew)
625 printf("\tClock skew: %" PRIu16 "sec\n",
628 if (vflag < LOG_WARNING)
631 /* route information */
632 sprintf(argv_rti, "%s:rti=", ifi->ifi_ifname);
633 action_argv = argv_rti;
634 error = action_propget(action_argv, &cp);
638 rti = (struct rtinfo *)cp.cp_val;
639 len = cp.cp_val_len / sizeof(*rti);
641 printf("\tRoute Info:\n");
643 for (i = 0; i < len; i++)
644 action_show_rtinfo(&rti[i]);
647 /* prefix information */
648 sprintf(argv_pfx, "%s:pfx=", ifi->ifi_ifname);
649 action_argv = argv_pfx;
651 error = action_propget(action_argv, &cp);
655 pfx = (struct prefix *)cp.cp_val;
656 len = cp.cp_val_len / sizeof(*pfx);
659 printf("\tPrefixes (%d):\n", len);
661 for (i = 0; i < len; i++)
662 action_show_prefix(&pfx[i]);
665 /* RDNSS information */
666 sprintf(argv_rdnss, "%s:rdnss=", ifi->ifi_ifname);
667 action_argv = argv_rdnss;
669 error = action_propget(action_argv, &cp);
673 len = *((uint16_t *)cp.cp_val);
676 printf("\tRDNSS entries:\n");
677 action_show_rdnss(cp.cp_val);
680 /* DNSSL information */
681 sprintf(argv_dnssl, "%s:dnssl=", ifi->ifi_ifname);
682 action_argv = argv_dnssl;
684 error = action_propget(action_argv, &cp);
688 len = *((uint16_t *)cp.cp_val);
691 printf("\tDNSSL entries:\n");
692 action_show_dnssl(cp.cp_val);
695 if (vflag < LOG_NOTICE)
700 printf("\tCounters\n"
701 "\t RA burst counts: %" PRIu16 " (interval: %s)\n"
702 "\t RS wait counts: %" PRIu16 "\n",
703 ifi_s->ifi_burstcount,
704 sec2str(ifi_s->ifi_burstinterval, ssbuf),
705 ifi_s->ifi_rs_waitcount);
708 "\t RA: %" PRIu64 "\n", ifi_s->ifi_raoutput);
711 "\t RA: %" PRIu64 " (normal)\n"
712 "\t RA: %" PRIu64 " (inconsistent)\n"
713 "\t RS: %" PRIu64 "\n",
715 ifi_s->ifi_rainconsistent,
720 #if 0 /* Not implemented yet */
721 printf("\tReceived RAs:\n");
729 action_show_rtinfo(struct rtinfo *rti)
731 char ntopbuf[INET6_ADDRSTRLEN];
732 char ssbuf[SSBUFLEN];
734 printf("\t %s/%d (pref: %s, ltime: %s)\n",
735 inet_ntop(AF_INET6, &rti->rti_prefix,
736 ntopbuf, sizeof(ntopbuf)),
738 rtpref_str[0xff & (rti->rti_rtpref >> 3)],
739 (rti->rti_ltime == ND6_INFINITE_LIFETIME) ?
740 "infinity" : sec2str(rti->rti_ltime, ssbuf));
746 action_show_prefix(struct prefix *pfx)
748 char ntopbuf[INET6_ADDRSTRLEN];
749 char ssbuf[SSBUFLEN];
752 clock_gettime(CLOCK_MONOTONIC_FAST, &now);
753 printf("\t %s/%d", inet_ntop(AF_INET6, &pfx->pfx_prefix,
754 ntopbuf, sizeof(ntopbuf)), pfx->pfx_prefixlen);
757 switch (pfx->pfx_origin) {
758 case PREFIX_FROM_KERNEL:
761 case PREFIX_FROM_CONFIG:
764 case PREFIX_FROM_DYNAMIC:
772 (pfx->pfx_validlifetime == ND6_INFINITE_LIFETIME) ?
773 "infinity" : sec2str(pfx->pfx_validlifetime, ssbuf));
775 if (pfx->pfx_vltimeexpire > 0)
776 printf("(expire: %s)",
777 ((long)pfx->pfx_vltimeexpire > now.tv_sec) ?
778 sec2str(pfx->pfx_vltimeexpire - now.tv_sec, ssbuf) :
784 (pfx->pfx_preflifetime == ND6_INFINITE_LIFETIME) ?
785 "infinity" : sec2str(pfx->pfx_preflifetime, ssbuf));
787 if (pfx->pfx_pltimeexpire > 0)
788 printf("(expire %s)",
789 ((long)pfx->pfx_pltimeexpire > now.tv_sec) ?
790 sec2str(pfx->pfx_pltimeexpire - now.tv_sec, ssbuf) :
796 if (pfx->pfx_onlinkflg || pfx->pfx_autoconfflg) {
797 printf("%s", pfx->pfx_onlinkflg ? "L" : "");
798 printf("%s", pfx->pfx_autoconfflg ? "A" : "");
802 if (pfx->pfx_timer) {
803 struct timespec *rest;
805 rest = rtadvd_timer_rest(pfx->pfx_timer);
806 if (rest) { /* XXX: what if not? */
807 printf(" expire=%s", sec2str(rest->tv_sec, ssbuf));
817 action_show_rdnss(void *msg)
820 struct rdnss_addr *rda;
827 char ntopbuf[INET6_ADDRSTRLEN];
828 char ssbuf[SSBUFLEN];
831 rdn_cnt = (uint16_t *)p;
832 p += sizeof(*rdn_cnt);
835 for (i = 0; i < *rdn_cnt; i++) {
836 rdn = (struct rdnss *)p;
837 ltime = rdn->rd_ltime;
840 rda_cnt = (uint16_t *)p;
841 p += sizeof(*rda_cnt);
843 for (j = 0; j < *rda_cnt; j++) {
844 rda = (struct rdnss_addr *)p;
845 printf("\t %s (ltime=%s)\n",
850 sec2str(ltime, ssbuf));
860 action_show_dnssl(void *msg)
863 struct dnssl_addr *dna;
870 char hbuf[NI_MAXHOST];
871 char ssbuf[SSBUFLEN];
874 dns_cnt = (uint16_t *)p;
875 p += sizeof(*dns_cnt);
878 for (i = 0; i < *dns_cnt; i++) {
879 dns = (struct dnssl *)p;
880 ltime = dns->dn_ltime;
883 dna_cnt = (uint16_t *)p;
884 p += sizeof(*dna_cnt);
886 for (j = 0; j < *dna_cnt; j++) {
887 dna = (struct dnssl_addr *)p;
888 dname_labeldec(hbuf, sizeof(hbuf),
890 printf("\t %s (ltime=%s)\n",
891 hbuf, sec2str(ltime, ssbuf));
900 /* Decode domain name label encoding in RFC 1035 Section 3.1 */
902 dname_labeldec(char *dst, size_t dlen, const char *src)
905 const char *src_origin;
906 const char *src_last;
907 const char *dst_origin;
910 src_last = strchr(src, '\0');
912 memset(dst, '\0', dlen);
913 while (src && (len = (uint8_t)(*src++) & 0x3f) &&
914 (src + len) <= src_last) {
915 if (dst != dst_origin)
917 mysyslog(LOG_DEBUG, "<%s> labellen = %zd", __func__, len);
918 memcpy(dst, src, len);
924 return (src - src_origin);