usr.sbin/rtadvctl/rtadvctl.c

   1 /*-
   2  * Copyright (C) 2011 Hiroki Sato <hrs@FreeBSD.org>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   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  *
  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.
  25  *
  26  * $FreeBSD$
  27  *
  28  */
  29
  30 #include <sys/queue.h>
  31 #include <sys/types.h>
  32 #include <sys/socket.h>
  33 #include <sys/stat.h>
  34 #include <sys/un.h>
  35 #include <sys/uio.h>
  36 #include <net/if.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>
  47 #include <fcntl.h>
  48 #include <errno.h>
  49 #include <inttypes.h>
  50 #include <netdb.h>
  51 #include <unistd.h>
  52 #include <string.h>
  53 #include <stdarg.h>
  54 #include <stdio.h>
  55 #include <stdlib.h>
  56 #include <stdarg.h>
  57 #include <syslog.h>
  58 #include <err.h>
  59
  60 #include "pathnames.h"
  61 #include "rtadvd.h"
  62 #include "if.h"
  63 #include "timer_subr.h"
  64 #include "timer.h"
  65 #include "control.h"
  66 #include "control_client.h"
  67
  68 #define RA_IFSTATUS_INACTIVE    0
  69 #define RA_IFSTATUS_RA_RECV     1
  70 #define RA_IFSTATUS_RA_SEND     2
  71
  72 static int vflag = LOG_ERR;
  73
  74 static void     usage(void);
  75
  76 static int      action_propset(char *);
  77 static int      action_propget(char *, struct ctrl_msg_pl *);
  78 static int      action_plgeneric(int, char *, char *);
  79
  80 static int      action_enable(int, char **);
  81 static int      action_disable(int, char **);
  82 static int      action_reload(int, char **);
  83 static int      action_echo(int, char **);
  84 static int      action_version(int, char **);
  85 static int      action_shutdown(int, char **);
  86
  87 static int      action_show(int, char **);
  88 static int      action_show_prefix(struct prefix *);
  89 static int      action_show_rtinfo(struct rtinfo *);
  90 static int      action_show_rdnss(void *);
  91 static int      action_show_dnssl(void *);
  92
  93 static int      csock_client_open(struct sockinfo *);
  94 static size_t   dname_labeldec(char *, size_t, const char *);
  95 static void     mysyslog(int, const char *, ...);
  96
  97 static const char *rtpref_str[] = {
  98         "medium",               /* 00 */
  99         "high",                 /* 01 */
 100         "rsv",                  /* 10 */
 101         "low"                   /* 11 */
 102 };
 103
 104 static struct dispatch_table {
 105         const char      *dt_comm;
 106         int (*dt_act)(int, char **);
 107 } dtable[] = {
 108         { "show", action_show },
 109         { "reload", action_reload },
 110         { "shutdown", action_shutdown },
 111         { "enable", action_enable },
 112         { "disable", action_disable },
 113         { NULL, NULL },
 114         { "echo", action_echo },
 115         { "version", action_version },
 116         { NULL, NULL },
 117 };
 118
 119 static char errmsgbuf[1024];
 120 static char *errmsg = NULL;
 121
 122 static void
 123 mysyslog(int priority, const char * restrict fmt, ...)
 124 {
 125         va_list ap;
 126
 127         if (vflag >= priority) {
 128                 va_start(ap, fmt);
 129                 vfprintf(stderr, fmt, ap);
 130                 fprintf(stderr, "\n");
 131                 va_end(ap);
 132         }
 133 }
 134
 135 static void
 136 usage(void)
 137 {
 138         int i;
 139
 140         for (i = 0; (size_t)i < sizeof(dtable)/sizeof(dtable[0]); i++) {
 141                 if (dtable[i].dt_comm == NULL)
 142                         break;
 143                 printf("%s\n", dtable[i].dt_comm);
 144         }
 145
 146         exit(1);
 147 }
 148
 149 int
 150 main(int argc, char *argv[])
 151 {
 152         int i;
 153         int ch;
 154         int (*action)(int, char **) = NULL;
 155         int error;
 156
 157         while ((ch = getopt(argc, argv, "Dv")) != -1) {
 158                 switch (ch) {
 159                 case 'D':
 160                         vflag = LOG_DEBUG;
 161                         break;
 162                 case 'v':
 163                         vflag++;
 164                         break;
 165                 default:
 166                         usage();
 167                 }
 168         }
 169         argc -= optind;
 170         argv += optind;
 171
 172         if (argc == 0)
 173                 usage();
 174
 175         for (i = 0; (size_t)i < sizeof(dtable)/sizeof(dtable[0]); i++) {
 176                 if (dtable[i].dt_comm == NULL ||
 177                     strcmp(dtable[i].dt_comm, argv[0]) == 0) {
 178                         action = dtable[i].dt_act;
 179                         break;
 180                 }
 181         }
 182
 183         if (action == NULL)
 184                 usage();
 185
 186         error = (dtable[i].dt_act)(--argc, ++argv);
 187         if (error) {
 188                 fprintf(stderr, "%s failed", dtable[i].dt_comm);
 189                 if (errmsg != NULL)
 190                         fprintf(stderr, ": %s", errmsg);
 191                 fprintf(stderr, ".\n");
 192         }
 193
 194         return (error);
 195 }
 196
 197 static int
 198 csock_client_open(struct sockinfo *s)
 199 {
 200         struct sockaddr_un sun;
 201
 202         if ((s->si_fd = socket(PF_UNIX, SOCK_STREAM, 0)) == -1)
 203                 err(1, "cannot open control socket.");
 204
 205         memset(&sun, 0, sizeof(sun));
 206         sun.sun_family = AF_UNIX;
 207         sun.sun_len = sizeof(sun);
 208         strlcpy(sun.sun_path, s->si_name, sizeof(sun.sun_path));
 209
 210         if (connect(s->si_fd, (struct sockaddr *)&sun, sizeof(sun)) == -1)
 211                 err(1, "connect: %s", s->si_name);
 212
 213         mysyslog(LOG_DEBUG,
 214             "<%s> connected to %s", __func__, sun.sun_path);
 215
 216         return (0);
 217 }
 218
 219 static int
 220 action_plgeneric(int action, char *plstr, char *buf)
 221 {
 222         struct ctrl_msg_hdr *cm;
 223         struct ctrl_msg_pl cp;
 224         struct sockinfo *s;
 225         char *msg;
 226         char *p;
 227         char *q;
 228
 229         s = &ctrlsock;
 230         csock_client_open(s);
 231
 232         cm = (struct ctrl_msg_hdr *)buf;
 233         msg = (char *)buf + sizeof(*cm);
 234
 235         cm->cm_version = CM_VERSION;
 236         cm->cm_type = action;
 237         cm->cm_len = sizeof(*cm);
 238
 239         if (plstr != NULL) {
 240                 memset(&cp, 0, sizeof(cp));
 241                 p = strchr(plstr, ':');
 242                 q = strchr(plstr, '=');
 243                 if (p != NULL && q != NULL && p > q)
 244                         return (1);
 245
 246                 if (p == NULL) {                /* No : */
 247                         cp.cp_ifname = NULL;
 248                         cp.cp_key = plstr;
 249                 } else if  (p == plstr) {       /* empty */
 250                         cp.cp_ifname = NULL;
 251                         cp.cp_key = plstr + 1;
 252                 } else {
 253                         *p++ = '\0';
 254                         cp.cp_ifname = plstr;
 255                         cp.cp_key = p;
 256                 }
 257                 if (q == NULL)
 258                         cp.cp_val = NULL;
 259                 else {
 260                         *q++ = '\0';
 261                         cp.cp_val = q;
 262                 }
 263                 cm->cm_len += cm_pl2bin(msg, &cp);
 264
 265                 mysyslog(LOG_DEBUG, "<%s> key=%s, val_len=%d, ifname=%s",
 266                     __func__,cp.cp_key, cp.cp_val_len, cp.cp_ifname);
 267         }
 268
 269         return (cm_handler_client(s->si_fd, CM_STATE_MSG_DISPATCH, buf));
 270 }
 271
 272 static int
 273 action_propget(char *argv, struct ctrl_msg_pl *cp)
 274 {
 275         int error;
 276         struct ctrl_msg_hdr *cm;
 277         char buf[CM_MSG_MAXLEN];
 278         char *msg;
 279
 280         memset(cp, 0, sizeof(*cp));
 281         cm = (struct ctrl_msg_hdr *)buf;
 282         msg = (char *)buf + sizeof(*cm);
 283
 284         error = action_plgeneric(CM_TYPE_REQ_GET_PROP, argv, buf);
 285         if (error || cm->cm_len <= sizeof(*cm))
 286                 return (1);
 287
 288         cm_bin2pl(msg, cp);
 289         mysyslog(LOG_DEBUG, "<%s> type=%d, len=%d",
 290             __func__, cm->cm_type, cm->cm_len);
 291         mysyslog(LOG_DEBUG, "<%s> key=%s, val_len=%d, ifname=%s",
 292             __func__,cp->cp_key, cp->cp_val_len, cp->cp_ifname);
 293
 294         return (0);
 295 }
 296
 297 static int
 298 action_propset(char *argv)
 299 {
 300         char buf[CM_MSG_MAXLEN];
 301
 302         return (action_plgeneric(CM_TYPE_REQ_SET_PROP, argv, buf));
 303 }
 304
 305 static int
 306 action_disable(int argc, char **argv)
 307 {
 308         char *action_argv;
 309         char argv_disable[IFNAMSIZ + sizeof(":disable=")];
 310         int i;
 311         int error;
 312
 313         if (argc < 1)
 314                 return (1);
 315
 316         error = 0;
 317         for (i = 0; i < argc; i++) {
 318                 sprintf(argv_disable, "%s:disable=", argv[i]);
 319                 action_argv = argv_disable;
 320                 error += action_propset(action_argv);
 321         }
 322
 323         return (error);
 324 }
 325
 326 static int
 327 action_enable(int argc, char **argv)
 328 {
 329         char *action_argv;
 330         char argv_enable[IFNAMSIZ + sizeof(":enable=")];
 331         int i;
 332         int error;
 333
 334         if (argc < 1)
 335                 return (1);
 336
 337         error = 0;
 338         for (i = 0; i < argc; i++) {
 339                 sprintf(argv_enable, "%s:enable=", argv[i]);
 340                 action_argv = argv_enable;
 341                 error += action_propset(action_argv);
 342         }
 343
 344         return (error);
 345 }
 346
 347 static int
 348 action_reload(int argc, char **argv)
 349 {
 350         char *action_argv;
 351         char argv_reload[IFNAMSIZ + sizeof(":reload=")];
 352         int i;
 353         int error;
 354
 355         if (argc == 0) {
 356                 action_argv = strdup(":reload=");
 357                 return (action_propset(action_argv));
 358         }
 359
 360         error = 0;
 361         for (i = 0; i < argc; i++) {
 362                 sprintf(argv_reload, "%s:reload=", argv[i]);
 363                 action_argv = argv_reload;
 364                 error += action_propset(action_argv);
 365         }
 366
 367         return (error);
 368 }
 369
 370 static int
 371 action_echo(int argc __unused, char **argv __unused)
 372 {
 373         char *action_argv;
 374
 375         action_argv = strdup("echo");
 376         return (action_propset(action_argv));
 377 }
 378
 379 static int
 380 action_shutdown(int argc __unused, char **argv __unused)
 381 {
 382         char *action_argv;
 383
 384         action_argv = strdup("shutdown");
 385         return (action_propset(action_argv));
 386 }
 387
 388 /* XXX */
 389 static int
 390 action_version(int argc __unused, char **argv __unused)
 391 {
 392         char *action_argv;
 393         struct ctrl_msg_pl cp;
 394         int error;
 395
 396         action_argv = strdup(":version=");
 397         error = action_propget(action_argv, &cp);
 398         if (error)
 399                 return (error);
 400
 401         printf("version=%s\n", cp.cp_val);
 402         return (0);
 403 }
 404
 405 static int
 406 action_show(int argc, char **argv)
 407 {
 408         char *action_argv;
 409         char argv_ifilist[sizeof(":ifilist=")] = ":ifilist=";
 410         char argv_ifi[IFNAMSIZ + sizeof(":ifi=")];
 411         char argv_rai[IFNAMSIZ + sizeof(":rai=")];
 412         char argv_rti[IFNAMSIZ + sizeof(":rti=")];
 413         char argv_pfx[IFNAMSIZ + sizeof(":pfx=")];
 414         char argv_ifi_ra_timer[IFNAMSIZ + sizeof(":ifi_ra_timer=")];
 415         char argv_rdnss[IFNAMSIZ + sizeof(":rdnss=")];
 416         char argv_dnssl[IFNAMSIZ + sizeof(":dnssl=")];
 417         char ssbuf[SSBUFLEN];
 418
 419         struct ctrl_msg_pl cp;
 420         struct ifinfo *ifi;
 421         TAILQ_HEAD(, ifinfo) ifl = TAILQ_HEAD_INITIALIZER(ifl);
 422         char *endp;
 423         char *p;
 424         int error;
 425         int i;
 426         int len;
 427
 428         if (argc == 0) {
 429                 action_argv = argv_ifilist;
 430                 error = action_propget(action_argv, &cp);
 431                 if (error)
 432                         return (error);
 433
 434                 p = cp.cp_val;
 435                 endp = p + cp.cp_val_len;
 436                 while (p < endp) {
 437                         ifi = malloc(sizeof(*ifi));
 438                         if (ifi == NULL)
 439                                 return (1);
 440                         memset(ifi, 0, sizeof(*ifi));
 441
 442                         strcpy(ifi->ifi_ifname, p);
 443                         ifi->ifi_ifindex = if_nametoindex(ifi->ifi_ifname);
 444                         TAILQ_INSERT_TAIL(&ifl, ifi, ifi_next);
 445                         p += strlen(ifi->ifi_ifname) + 1;
 446                 }
 447         } else {
 448                 for (i = 0; i < argc; i++) {
 449                         ifi = malloc(sizeof(*ifi));
 450                         if (ifi == NULL)
 451                                 return (1);
 452                         memset(ifi, 0, sizeof(*ifi));
 453
 454                         strcpy(ifi->ifi_ifname, argv[i]);
 455                         ifi->ifi_ifindex = if_nametoindex(ifi->ifi_ifname);
 456                         if (ifi->ifi_ifindex == 0) {
 457                                 sprintf(errmsgbuf, "invalid interface %s",
 458                                     ifi->ifi_ifname);
 459                                 errmsg = errmsgbuf;
 460                                 return (1);
 461                         }
 462
 463                         TAILQ_INSERT_TAIL(&ifl, ifi, ifi_next);
 464                 }
 465         }
 466
 467         TAILQ_FOREACH(ifi, &ifl, ifi_next) {
 468                 struct ifinfo *ifi_s;
 469                 struct rtadvd_timer *rat;
 470                 struct rainfo *rai;
 471                 struct rtinfo *rti;
 472                 struct prefix *pfx;
 473                 int c;
 474                 int ra_ifstatus;
 475
 476                 sprintf(argv_ifi, "%s:ifi=", ifi->ifi_ifname);
 477                 action_argv = argv_ifi;
 478                 error = action_propget(action_argv, &cp);
 479                 if (error)
 480                         return (error);
 481                 ifi_s = (struct ifinfo *)cp.cp_val;
 482
 483                 if (!(ifi_s->ifi_persist) && vflag < LOG_NOTICE)
 484                         continue;
 485
 486                 printf("%s: flags=<", ifi->ifi_ifname);
 487
 488                 c = 0;
 489                 if (ifi_s->ifi_ifindex == 0)
 490                         c += printf("NONEXISTENT");
 491                 else
 492                         c += printf("%s", (ifi_s->ifi_flags & IFF_UP) ?
 493                             "UP" : "DOWN");
 494                 switch (ifi_s->ifi_state) {
 495                 case IFI_STATE_CONFIGURED:
 496                         c += printf("%s%s", (c) ? "," : "", "CONFIGURED");
 497                         break;
 498                 case IFI_STATE_TRANSITIVE:
 499                         c += printf("%s%s", (c) ? "," : "", "TRANSITIVE");
 500                         break;
 501                 }
 502                 if (ifi_s->ifi_persist)
 503                         c += printf("%s%s", (c) ? "," : "", "PERSIST");
 504                 printf(">");
 505
 506                 ra_ifstatus = RA_IFSTATUS_INACTIVE;
 507                 if ((ifi_s->ifi_flags & IFF_UP) &&
 508                     ((ifi_s->ifi_state == IFI_STATE_CONFIGURED) ||
 509                         (ifi_s->ifi_state == IFI_STATE_TRANSITIVE))) {
 510 #if (__FreeBSD_version < 900000)
 511                         /*
 512                          * RA_RECV: !ip6.forwarding && ip6.accept_rtadv
 513                          * RA_SEND: ip6.forwarding
 514                          */
 515                         if (getinet6sysctl(IPV6CTL_FORWARDING) == 0) {
 516                                 if (getinet6sysctl(IPV6CTL_ACCEPT_RTADV))
 517                                         ra_ifstatus = RA_IFSTATUS_RA_RECV;
 518                                 else
 519                                         ra_ifstatus = RA_IFSTATUS_INACTIVE;
 520                         } else
 521                                 ra_ifstatus = RA_IFSTATUS_RA_SEND;
 522 #else
 523                         /*
 524                          * RA_RECV: ND6_IFF_ACCEPT_RTADV
 525                          * RA_SEND: ip6.forwarding
 526                          */
 527                         if (ifi_s->ifi_nd_flags & ND6_IFF_ACCEPT_RTADV)
 528                                 ra_ifstatus = RA_IFSTATUS_RA_RECV;
 529                         else if (getinet6sysctl(IPV6CTL_FORWARDING))
 530                                 ra_ifstatus = RA_IFSTATUS_RA_SEND;
 531                         else
 532                                 ra_ifstatus = RA_IFSTATUS_INACTIVE;
 533 #endif
 534                 }
 535
 536                 c = 0;
 537                 printf(" status=<");
 538                 if (ra_ifstatus == RA_IFSTATUS_INACTIVE)
 539                         printf("%s%s", (c) ? "," : "", "INACTIVE");
 540                 else if (ra_ifstatus == RA_IFSTATUS_RA_RECV)
 541                         printf("%s%s", (c) ? "," : "", "RA_RECV");
 542                 else if (ra_ifstatus == RA_IFSTATUS_RA_SEND)
 543                         printf("%s%s", (c) ? "," : "", "RA_SEND");
 544                 printf("> ");
 545
 546                 switch (ifi_s->ifi_state) {
 547                 case IFI_STATE_CONFIGURED:
 548                 case IFI_STATE_TRANSITIVE:
 549                         break;
 550                 default:
 551                         printf("\n");
 552                         continue;
 553                 }
 554
 555                 printf("mtu %d\n", ifi_s->ifi_phymtu);
 556
 557                 sprintf(argv_rai, "%s:rai=", ifi->ifi_ifname);
 558                 action_argv = argv_rai;
 559
 560                 error = action_propget(action_argv, &cp);
 561                 if (error)
 562                         continue;
 563
 564                 rai = (struct rainfo *)cp.cp_val;
 565
 566                 printf("\tDefaultLifetime: %s",
 567                     sec2str(rai->rai_lifetime, ssbuf));
 568                 if (ra_ifstatus != RA_IFSTATUS_RA_SEND &&
 569                     rai->rai_lifetime == 0)
 570                         printf(" (RAs will be sent with zero lifetime)");
 571
 572                 printf("\n");
 573
 574                 printf("\tMinAdvInterval/MaxAdvInterval: ");
 575                 printf("%s/", sec2str(rai->rai_mininterval, ssbuf));
 576                 printf("%s\n", sec2str(rai->rai_maxinterval, ssbuf));
 577                 if (rai->rai_linkmtu)
 578                         printf("\tAdvLinkMTU: %d", rai->rai_linkmtu);
 579                 else
 580                         printf("\tAdvLinkMTU: <none>");
 581
 582                 printf(", ");
 583
 584                 printf("Flags: ");
 585                 if (rai->rai_managedflg || rai->rai_otherflg) {
 586                         printf("%s", rai->rai_managedflg ? "M" : "");
 587                         printf("%s", rai->rai_otherflg ? "O" : "");
 588                 } else
 589                         printf("<none>");
 590
 591                 printf(", ");
 592
 593                 printf("Preference: %s\n",
 594                     rtpref_str[(rai->rai_rtpref >> 3) & 0xff]);
 595
 596                 printf("\tReachableTime: %s, ",
 597                     sec2str(rai->rai_reachabletime, ssbuf));
 598                 printf("RetransTimer: %s, "
 599                     "CurHopLimit: %d\n",
 600                     sec2str(rai->rai_retranstimer, ssbuf),
 601                     rai->rai_hoplimit);
 602                 printf("\tAdvIfPrefixes: %s\n",
 603                     rai->rai_advifprefix ? "yes" : "no");
 604
 605                 /* RA timer */
 606                 rat = NULL;
 607                 if (ifi_s->ifi_ra_timer != NULL) {
 608                         sprintf(argv_ifi_ra_timer, "%s:ifi_ra_timer=",
 609                             ifi->ifi_ifname);
 610                         action_argv = argv_ifi_ra_timer;
 611
 612                         error = action_propget(action_argv, &cp);
 613                         if (error)
 614                                 return (error);
 615
 616                         rat = (struct rtadvd_timer *)cp.cp_val;
 617                 }
 618                 printf("\tNext RA send: %s",
 619                     (rat == NULL) ? "never\n" :
 620                     ctime((time_t *)&rat->rat_tm.tv_sec));
 621                 printf("\tLast RA sent: %s",
 622                     (ifi_s->ifi_ra_lastsent.tv_sec == 0) ? "never\n" :
 623                     ctime((time_t *)&ifi_s->ifi_ra_lastsent.tv_sec));
 624                 if (rai->rai_clockskew)
 625                         printf("\tClock skew: %" PRIu16 "sec\n",
 626                             rai->rai_clockskew);
 627
 628                 if (vflag < LOG_WARNING)
 629                         continue;
 630
 631                 /* route information */
 632                 sprintf(argv_rti, "%s:rti=", ifi->ifi_ifname);
 633                 action_argv = argv_rti;
 634                 error = action_propget(action_argv, &cp);
 635                 if (error)
 636                         return (error);
 637
 638                 rti = (struct rtinfo *)cp.cp_val;
 639                 len = cp.cp_val_len / sizeof(*rti);
 640                 if (len > 0) {
 641                         printf("\tRoute Info:\n");
 642
 643                         for (i = 0; i < len; i++)
 644                                 action_show_rtinfo(&rti[i]);
 645                 }
 646
 647                 /* prefix information */
 648                 sprintf(argv_pfx, "%s:pfx=", ifi->ifi_ifname);
 649                 action_argv = argv_pfx;
 650
 651                 error = action_propget(action_argv, &cp);
 652                 if (error)
 653                         continue;
 654
 655                 pfx = (struct prefix *)cp.cp_val;
 656                 len = cp.cp_val_len / sizeof(*pfx);
 657
 658                 if (len > 0) {
 659                         printf("\tPrefixes (%d):\n", len);
 660
 661                         for (i = 0; i < len; i++)
 662                                 action_show_prefix(&pfx[i]);
 663                 }
 664
 665                 /* RDNSS information */
 666                 sprintf(argv_rdnss, "%s:rdnss=", ifi->ifi_ifname);
 667                 action_argv = argv_rdnss;
 668
 669                 error = action_propget(action_argv, &cp);
 670                 if (error)
 671                         continue;
 672
 673                 len = *((uint16_t *)cp.cp_val);
 674
 675                 if (len > 0) {
 676                         printf("\tRDNSS entries:\n");
 677                         action_show_rdnss(cp.cp_val);
 678                 }
 679
 680                 /* DNSSL information */
 681                 sprintf(argv_dnssl, "%s:dnssl=", ifi->ifi_ifname);
 682                 action_argv = argv_dnssl;
 683
 684                 error = action_propget(action_argv, &cp);
 685                 if (error)
 686                         continue;
 687
 688                 len = *((uint16_t *)cp.cp_val);
 689
 690                 if (len > 0) {
 691                         printf("\tDNSSL entries:\n");
 692                         action_show_dnssl(cp.cp_val);
 693                 }
 694
 695                 if (vflag < LOG_NOTICE)
 696                         continue;
 697
 698                 printf("\n");
 699
 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);
 706
 707                 printf("\tOutputs\n"
 708                     "\t RA: %" PRIu64 "\n", ifi_s->ifi_raoutput);
 709
 710                 printf("\tInputs\n"
 711                     "\t RA: %" PRIu64 " (normal)\n"
 712                     "\t RA: %" PRIu64 " (inconsistent)\n"
 713                     "\t RS: %" PRIu64 "\n",
 714                     ifi_s->ifi_rainput,
 715                     ifi_s->ifi_rainconsistent,
 716                     ifi_s->ifi_rsinput);
 717
 718                 printf("\n");
 719
 720 #if 0   /* Not implemented yet */
 721                 printf("\tReceived RAs:\n");
 722 #endif
 723         }
 724
 725         return (0);
 726 }
 727
 728 static int
 729 action_show_rtinfo(struct rtinfo *rti)
 730 {
 731         char ntopbuf[INET6_ADDRSTRLEN];
 732         char ssbuf[SSBUFLEN];
 733
 734         printf("\t  %s/%d (pref: %s, ltime: %s)\n",
 735             inet_ntop(AF_INET6, &rti->rti_prefix,
 736                 ntopbuf, sizeof(ntopbuf)),
 737             rti->rti_prefixlen,
 738             rtpref_str[0xff & (rti->rti_rtpref >> 3)],
 739             (rti->rti_ltime == ND6_INFINITE_LIFETIME) ?
 740             "infinity" : sec2str(rti->rti_ltime, ssbuf));
 741
 742         return (0);
 743 }
 744
 745 static int
 746 action_show_prefix(struct prefix *pfx)
 747 {
 748         char ntopbuf[INET6_ADDRSTRLEN];
 749         char ssbuf[SSBUFLEN];
 750         struct timeval now;
 751
 752         gettimeofday(&now, NULL);
 753         printf("\t  %s/%d", inet_ntop(AF_INET6, &pfx->pfx_prefix,
 754                 ntopbuf, sizeof(ntopbuf)), pfx->pfx_prefixlen);
 755
 756         printf(" (");
 757         switch (pfx->pfx_origin) {
 758         case PREFIX_FROM_KERNEL:
 759                 printf("KERNEL");
 760                 break;
 761         case PREFIX_FROM_CONFIG:
 762                 printf("CONFIG");
 763                 break;
 764         case PREFIX_FROM_DYNAMIC:
 765                 printf("DYNAMIC");
 766                 break;
 767         }
 768
 769         printf(",");
 770
 771         printf(" vltime=%s",
 772             (pfx->pfx_validlifetime == ND6_INFINITE_LIFETIME) ?
 773             "infinity" : sec2str(pfx->pfx_validlifetime, ssbuf));
 774
 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) :
 779                     "0");
 780
 781         printf(",");
 782
 783         printf(" pltime=%s",
 784             (pfx->pfx_preflifetime == ND6_INFINITE_LIFETIME) ?
 785             "infinity" : sec2str(pfx->pfx_preflifetime, ssbuf));
 786
 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) :
 791                     "0");
 792
 793         printf(",");
 794
 795         printf(" flags=");
 796         if (pfx->pfx_onlinkflg || pfx->pfx_autoconfflg) {
 797                 printf("%s", pfx->pfx_onlinkflg ? "L" : "");
 798                 printf("%s", pfx->pfx_autoconfflg ? "A" : "");
 799         } else
 800                 printf("<none>");
 801
 802         if (pfx->pfx_timer) {
 803                 struct timeval *rest;
 804
 805                 rest = rtadvd_timer_rest(pfx->pfx_timer);
 806                 if (rest) { /* XXX: what if not? */
 807                         printf(" expire=%s", sec2str(rest->tv_sec, ssbuf));
 808                 }
 809         }
 810
 811         printf(")\n");
 812
 813         return (0);
 814 }
 815
 816 static int
 817 action_show_rdnss(void *msg)
 818 {
 819         struct rdnss *rdn;
 820         struct rdnss_addr *rda;
 821         uint16_t *rdn_cnt;
 822         uint16_t *rda_cnt;
 823         int i;
 824         int j;
 825         char *p;
 826         uint32_t        ltime;
 827         char ntopbuf[INET6_ADDRSTRLEN];
 828         char ssbuf[SSBUFLEN];
 829
 830         p = msg;
 831         rdn_cnt = (uint16_t *)p;
 832         p += sizeof(*rdn_cnt);
 833
 834         if (*rdn_cnt > 0) {
 835                 for (i = 0; i < *rdn_cnt; i++) {
 836                         rdn = (struct rdnss *)p;
 837                         ltime = rdn->rd_ltime;
 838                         p += sizeof(*rdn);
 839
 840                         rda_cnt = (uint16_t *)p;
 841                         p += sizeof(*rda_cnt);
 842                         if (*rda_cnt > 0)
 843                                 for (j = 0; j < *rda_cnt; j++) {
 844                                         rda = (struct rdnss_addr *)p;
 845                                         printf("\t  %s (ltime=%s)\n",
 846                                             inet_ntop(AF_INET6,
 847                                                 &rda->ra_dns,
 848                                                 ntopbuf,
 849                                                 sizeof(ntopbuf)),
 850                                             sec2str(ltime, ssbuf));
 851                                         p += sizeof(*rda);
 852                                 }
 853                 }
 854         }
 855
 856         return (0);
 857 }
 858
 859 static int
 860 action_show_dnssl(void *msg)
 861 {
 862         struct dnssl *dns;
 863         struct dnssl_addr *dna;
 864         uint16_t *dns_cnt;
 865         uint16_t *dna_cnt;
 866         int i;
 867         int j;
 868         char *p;
 869         uint32_t ltime;
 870         char hbuf[NI_MAXHOST];
 871         char ssbuf[SSBUFLEN];
 872
 873         p = msg;
 874         dns_cnt = (uint16_t *)p;
 875         p += sizeof(*dns_cnt);
 876
 877         if (*dns_cnt > 0) {
 878                 for (i = 0; i < *dns_cnt; i++) {
 879                         dns = (struct dnssl *)p;
 880                         ltime = dns->dn_ltime;
 881                         p += sizeof(*dns);
 882
 883                         dna_cnt = (uint16_t *)p;
 884                         p += sizeof(*dna_cnt);
 885                         if (*dna_cnt > 0)
 886                                 for (j = 0; j < *dna_cnt; j++) {
 887                                         dna = (struct dnssl_addr *)p;
 888                                         dname_labeldec(hbuf, sizeof(hbuf),
 889                                             dna->da_dom);
 890                                         printf("\t  %s (ltime=%s)\n",
 891                                             hbuf, sec2str(ltime, ssbuf));
 892                                         p += sizeof(*dna);
 893                                 }
 894                 }
 895         }
 896
 897         return (0);
 898 }
 899
 900 /* Decode domain name label encoding in RFC 1035 Section 3.1 */
 901 static size_t
 902 dname_labeldec(char *dst, size_t dlen, const char *src)
 903 {
 904         size_t len;
 905         const char *src_origin;
 906         const char *src_last;
 907         const char *dst_origin;
 908
 909         src_origin = src;
 910         src_last = strchr(src, '\0');
 911         dst_origin = dst;
 912         memset(dst, '\0', dlen);
 913         while (src && (len = (uint8_t)(*src++) & 0x3f) &&
 914             (src + len) <= src_last) {
 915                 if (dst != dst_origin)
 916                         *dst++ = '.';
 917                 mysyslog(LOG_DEBUG, "<%s> labellen = %zd", __func__, len);
 918                 memcpy(dst, src, len);
 919                 src += len;
 920                 dst += len;
 921         }
 922         *dst = '\0';
 923
 924         return (src - src_origin);
 925 }