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: stable/10/usr.sbin/rtadvctl/rtadvctl.c 253970 2013-08-05 20:13:02Z hrs $
  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 <syslog.h>
  57 #include <time.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 *, ...) __printflike(2, 3);
  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=%zu, 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=%zu",
 290             __func__, cm->cm_type, cm->cm_len);
 291         mysyslog(LOG_DEBUG, "<%s> key=%s, val_len=%zu, 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 timespec now, ts0, ts;
 420         struct ctrl_msg_pl cp;
 421         struct ifinfo *ifi;
 422         TAILQ_HEAD(, ifinfo) ifl = TAILQ_HEAD_INITIALIZER(ifl);
 423         char *endp;
 424         char *p;
 425         int error;
 426         int i;
 427         int len;
 428
 429         if (argc == 0) {
 430                 action_argv = argv_ifilist;
 431                 error = action_propget(action_argv, &cp);
 432                 if (error)
 433                         return (error);
 434
 435                 p = cp.cp_val;
 436                 endp = p + cp.cp_val_len;
 437                 while (p < endp) {
 438                         ifi = malloc(sizeof(*ifi));
 439                         if (ifi == NULL)
 440                                 return (1);
 441                         memset(ifi, 0, sizeof(*ifi));
 442
 443                         strcpy(ifi->ifi_ifname, p);
 444                         ifi->ifi_ifindex = if_nametoindex(ifi->ifi_ifname);
 445                         TAILQ_INSERT_TAIL(&ifl, ifi, ifi_next);
 446                         p += strlen(ifi->ifi_ifname) + 1;
 447                 }
 448         } else {
 449                 for (i = 0; i < argc; i++) {
 450                         ifi = malloc(sizeof(*ifi));
 451                         if (ifi == NULL)
 452                                 return (1);
 453                         memset(ifi, 0, sizeof(*ifi));
 454
 455                         strcpy(ifi->ifi_ifname, argv[i]);
 456                         ifi->ifi_ifindex = if_nametoindex(ifi->ifi_ifname);
 457                         if (ifi->ifi_ifindex == 0) {
 458                                 sprintf(errmsgbuf, "invalid interface %s",
 459                                     ifi->ifi_ifname);
 460                                 errmsg = errmsgbuf;
 461                                 return (1);
 462                         }
 463
 464                         TAILQ_INSERT_TAIL(&ifl, ifi, ifi_next);
 465                 }
 466         }
 467
 468         clock_gettime(CLOCK_REALTIME_FAST, &now);
 469         clock_gettime(CLOCK_MONOTONIC_FAST, &ts);
 470         TS_SUB(&now, &ts, &ts0);
 471
 472         TAILQ_FOREACH(ifi, &ifl, ifi_next) {
 473                 struct ifinfo *ifi_s;
 474                 struct rtadvd_timer *rat;
 475                 struct rainfo *rai;
 476                 struct rtinfo *rti;
 477                 struct prefix *pfx;
 478                 int c;
 479                 int ra_ifstatus;
 480
 481                 sprintf(argv_ifi, "%s:ifi=", ifi->ifi_ifname);
 482                 action_argv = argv_ifi;
 483                 error = action_propget(action_argv, &cp);
 484                 if (error)
 485                         return (error);
 486                 ifi_s = (struct ifinfo *)cp.cp_val;
 487
 488                 if (!(ifi_s->ifi_persist) && vflag < LOG_NOTICE)
 489                         continue;
 490
 491                 printf("%s: flags=<", ifi->ifi_ifname);
 492
 493                 c = 0;
 494                 if (ifi_s->ifi_ifindex == 0)
 495                         c += printf("NONEXISTENT");
 496                 else
 497                         c += printf("%s", (ifi_s->ifi_flags & IFF_UP) ?
 498                             "UP" : "DOWN");
 499                 switch (ifi_s->ifi_state) {
 500                 case IFI_STATE_CONFIGURED:
 501                         c += printf("%s%s", (c) ? "," : "", "CONFIGURED");
 502                         break;
 503                 case IFI_STATE_TRANSITIVE:
 504                         c += printf("%s%s", (c) ? "," : "", "TRANSITIVE");
 505                         break;
 506                 }
 507                 if (ifi_s->ifi_persist)
 508                         c += printf("%s%s", (c) ? "," : "", "PERSIST");
 509                 printf(">");
 510
 511                 ra_ifstatus = RA_IFSTATUS_INACTIVE;
 512                 if ((ifi_s->ifi_flags & IFF_UP) &&
 513                     ((ifi_s->ifi_state == IFI_STATE_CONFIGURED) ||
 514                         (ifi_s->ifi_state == IFI_STATE_TRANSITIVE))) {
 515                         /*
 516                          * RA_RECV: ND6_IFF_ACCEPT_RTADV
 517                          * RA_SEND: ip6.forwarding
 518                          */
 519                         if (ifi_s->ifi_nd_flags & ND6_IFF_ACCEPT_RTADV)
 520                                 ra_ifstatus = RA_IFSTATUS_RA_RECV;
 521                         else if (getinet6sysctl(IPV6CTL_FORWARDING))
 522                                 ra_ifstatus = RA_IFSTATUS_RA_SEND;
 523                         else
 524                                 ra_ifstatus = RA_IFSTATUS_INACTIVE;
 525                 }
 526
 527                 c = 0;
 528                 printf(" status=<");
 529                 if (ra_ifstatus == RA_IFSTATUS_INACTIVE)
 530                         printf("%s%s", (c) ? "," : "", "INACTIVE");
 531                 else if (ra_ifstatus == RA_IFSTATUS_RA_RECV)
 532                         printf("%s%s", (c) ? "," : "", "RA_RECV");
 533                 else if (ra_ifstatus == RA_IFSTATUS_RA_SEND)
 534                         printf("%s%s", (c) ? "," : "", "RA_SEND");
 535                 printf("> ");
 536
 537                 switch (ifi_s->ifi_state) {
 538                 case IFI_STATE_CONFIGURED:
 539                 case IFI_STATE_TRANSITIVE:
 540                         break;
 541                 default:
 542                         printf("\n");
 543                         continue;
 544                 }
 545
 546                 printf("mtu %d\n", ifi_s->ifi_phymtu);
 547
 548                 sprintf(argv_rai, "%s:rai=", ifi->ifi_ifname);
 549                 action_argv = argv_rai;
 550
 551                 error = action_propget(action_argv, &cp);
 552                 if (error)
 553                         continue;
 554
 555                 rai = (struct rainfo *)cp.cp_val;
 556
 557                 printf("\tDefaultLifetime: %s",
 558                     sec2str(rai->rai_lifetime, ssbuf));
 559                 if (ra_ifstatus != RA_IFSTATUS_RA_SEND &&
 560                     rai->rai_lifetime == 0)
 561                         printf(" (RAs will be sent with zero lifetime)");
 562
 563                 printf("\n");
 564
 565                 printf("\tMinAdvInterval/MaxAdvInterval: ");
 566                 printf("%s/", sec2str(rai->rai_mininterval, ssbuf));
 567                 printf("%s\n", sec2str(rai->rai_maxinterval, ssbuf));
 568                 if (rai->rai_linkmtu)
 569                         printf("\tAdvLinkMTU: %d", rai->rai_linkmtu);
 570                 else
 571                         printf("\tAdvLinkMTU: <none>");
 572
 573                 printf(", ");
 574
 575                 printf("Flags: ");
 576                 if (rai->rai_managedflg || rai->rai_otherflg) {
 577                         printf("%s", rai->rai_managedflg ? "M" : "");
 578                         printf("%s", rai->rai_otherflg ? "O" : "");
 579                 } else
 580                         printf("<none>");
 581
 582                 printf(", ");
 583
 584                 printf("Preference: %s\n",
 585                     rtpref_str[(rai->rai_rtpref >> 3) & 0xff]);
 586
 587                 printf("\tReachableTime: %s, ",
 588                     sec2str(rai->rai_reachabletime, ssbuf));
 589                 printf("RetransTimer: %s, "
 590                     "CurHopLimit: %d\n",
 591                     sec2str(rai->rai_retranstimer, ssbuf),
 592                     rai->rai_hoplimit);
 593                 printf("\tAdvIfPrefixes: %s\n",
 594                     rai->rai_advifprefix ? "yes" : "no");
 595
 596                 /* RA timer */
 597                 rat = NULL;
 598                 if (ifi_s->ifi_ra_timer != NULL) {
 599                         sprintf(argv_ifi_ra_timer, "%s:ifi_ra_timer=",
 600                             ifi->ifi_ifname);
 601                         action_argv = argv_ifi_ra_timer;
 602
 603                         error = action_propget(action_argv, &cp);
 604                         if (error)
 605                                 return (error);
 606
 607                         rat = (struct rtadvd_timer *)cp.cp_val;
 608                 }
 609                 printf("\tNext RA send: ");
 610                 if (rat == NULL)
 611                         printf("never\n");
 612                 else {
 613                         ts.tv_sec = rat->rat_tm.tv_sec + ts0.tv_sec;
 614                         printf("%s", ctime(&ts.tv_sec));
 615                 }
 616                 printf("\tLast RA send: ");
 617                 if (ifi_s->ifi_ra_lastsent.tv_sec == 0)
 618                         printf("never\n");
 619                 else {
 620                         ts.tv_sec = ifi_s->ifi_ra_lastsent.tv_sec + ts0.tv_sec;
 621                         printf("%s", ctime(&ts.tv_sec));
 622                 }
 623                 if (rai->rai_clockskew)
 624                         printf("\tClock skew: %" PRIu16 "sec\n",
 625                             rai->rai_clockskew);
 626
 627                 if (vflag < LOG_WARNING)
 628                         continue;
 629
 630                 /* route information */
 631                 sprintf(argv_rti, "%s:rti=", ifi->ifi_ifname);
 632                 action_argv = argv_rti;
 633                 error = action_propget(action_argv, &cp);
 634                 if (error)
 635                         return (error);
 636
 637                 rti = (struct rtinfo *)cp.cp_val;
 638                 len = cp.cp_val_len / sizeof(*rti);
 639                 if (len > 0) {
 640                         printf("\tRoute Info:\n");
 641
 642                         for (i = 0; i < len; i++)
 643                                 action_show_rtinfo(&rti[i]);
 644                 }
 645
 646                 /* prefix information */
 647                 sprintf(argv_pfx, "%s:pfx=", ifi->ifi_ifname);
 648                 action_argv = argv_pfx;
 649
 650                 error = action_propget(action_argv, &cp);
 651                 if (error)
 652                         continue;
 653
 654                 pfx = (struct prefix *)cp.cp_val;
 655                 len = cp.cp_val_len / sizeof(*pfx);
 656
 657                 if (len > 0) {
 658                         printf("\tPrefixes (%d):\n", len);
 659
 660                         for (i = 0; i < len; i++)
 661                                 action_show_prefix(&pfx[i]);
 662                 }
 663
 664                 /* RDNSS information */
 665                 sprintf(argv_rdnss, "%s:rdnss=", ifi->ifi_ifname);
 666                 action_argv = argv_rdnss;
 667
 668                 error = action_propget(action_argv, &cp);
 669                 if (error)
 670                         continue;
 671
 672                 len = *((uint16_t *)cp.cp_val);
 673
 674                 if (len > 0) {
 675                         printf("\tRDNSS entries:\n");
 676                         action_show_rdnss(cp.cp_val);
 677                 }
 678
 679                 /* DNSSL information */
 680                 sprintf(argv_dnssl, "%s:dnssl=", ifi->ifi_ifname);
 681                 action_argv = argv_dnssl;
 682
 683                 error = action_propget(action_argv, &cp);
 684                 if (error)
 685                         continue;
 686
 687                 len = *((uint16_t *)cp.cp_val);
 688
 689                 if (len > 0) {
 690                         printf("\tDNSSL entries:\n");
 691                         action_show_dnssl(cp.cp_val);
 692                 }
 693
 694                 if (vflag < LOG_NOTICE)
 695                         continue;
 696
 697                 printf("\n");
 698
 699                 printf("\tCounters\n"
 700                     "\t RA burst counts: %" PRIu16 " (interval: %s)\n"
 701                     "\t RS wait counts: %" PRIu16 "\n",
 702                     ifi_s->ifi_burstcount,
 703                     sec2str(ifi_s->ifi_burstinterval, ssbuf),
 704                     ifi_s->ifi_rs_waitcount);
 705
 706                 printf("\tOutputs\n"
 707                     "\t RA: %" PRIu64 "\n", ifi_s->ifi_raoutput);
 708
 709                 printf("\tInputs\n"
 710                     "\t RA: %" PRIu64 " (normal)\n"
 711                     "\t RA: %" PRIu64 " (inconsistent)\n"
 712                     "\t RS: %" PRIu64 "\n",
 713                     ifi_s->ifi_rainput,
 714                     ifi_s->ifi_rainconsistent,
 715                     ifi_s->ifi_rsinput);
 716
 717                 printf("\n");
 718
 719 #if 0   /* Not implemented yet */
 720                 printf("\tReceived RAs:\n");
 721 #endif
 722         }
 723
 724         return (0);
 725 }
 726
 727 static int
 728 action_show_rtinfo(struct rtinfo *rti)
 729 {
 730         char ntopbuf[INET6_ADDRSTRLEN];
 731         char ssbuf[SSBUFLEN];
 732
 733         printf("\t  %s/%d (pref: %s, ltime: %s)\n",
 734             inet_ntop(AF_INET6, &rti->rti_prefix,
 735                 ntopbuf, sizeof(ntopbuf)),
 736             rti->rti_prefixlen,
 737             rtpref_str[0xff & (rti->rti_rtpref >> 3)],
 738             (rti->rti_ltime == ND6_INFINITE_LIFETIME) ?
 739             "infinity" : sec2str(rti->rti_ltime, ssbuf));
 740
 741         return (0);
 742 }
 743
 744 static int
 745 action_show_prefix(struct prefix *pfx)
 746 {
 747         char ntopbuf[INET6_ADDRSTRLEN];
 748         char ssbuf[SSBUFLEN];
 749         struct timespec now;
 750
 751         clock_gettime(CLOCK_MONOTONIC_FAST, &now);
 752         printf("\t  %s/%d", inet_ntop(AF_INET6, &pfx->pfx_prefix,
 753                 ntopbuf, sizeof(ntopbuf)), pfx->pfx_prefixlen);
 754
 755         printf(" (");
 756         switch (pfx->pfx_origin) {
 757         case PREFIX_FROM_KERNEL:
 758                 printf("KERNEL");
 759                 break;
 760         case PREFIX_FROM_CONFIG:
 761                 printf("CONFIG");
 762                 break;
 763         case PREFIX_FROM_DYNAMIC:
 764                 printf("DYNAMIC");
 765                 break;
 766         }
 767
 768         printf(",");
 769
 770         printf(" vltime=%s",
 771             (pfx->pfx_validlifetime == ND6_INFINITE_LIFETIME) ?
 772             "infinity" : sec2str(pfx->pfx_validlifetime, ssbuf));
 773
 774         if (pfx->pfx_vltimeexpire > 0)
 775                 printf("(expire: %s)",
 776                     ((long)pfx->pfx_vltimeexpire > now.tv_sec) ?
 777                     sec2str(pfx->pfx_vltimeexpire - now.tv_sec, ssbuf) :
 778                     "0");
 779
 780         printf(",");
 781
 782         printf(" pltime=%s",
 783             (pfx->pfx_preflifetime == ND6_INFINITE_LIFETIME) ?
 784             "infinity" : sec2str(pfx->pfx_preflifetime, ssbuf));
 785
 786         if (pfx->pfx_pltimeexpire > 0)
 787                 printf("(expire %s)",
 788                     ((long)pfx->pfx_pltimeexpire > now.tv_sec) ?
 789                     sec2str(pfx->pfx_pltimeexpire - now.tv_sec, ssbuf) :
 790                     "0");
 791
 792         printf(",");
 793
 794         printf(" flags=");
 795         if (pfx->pfx_onlinkflg || pfx->pfx_autoconfflg) {
 796                 printf("%s", pfx->pfx_onlinkflg ? "L" : "");
 797                 printf("%s", pfx->pfx_autoconfflg ? "A" : "");
 798         } else
 799                 printf("<none>");
 800
 801         if (pfx->pfx_timer) {
 802                 struct timespec *rest;
 803
 804                 rest = rtadvd_timer_rest(pfx->pfx_timer);
 805                 if (rest) { /* XXX: what if not? */
 806                         printf(" expire=%s", sec2str(rest->tv_sec, ssbuf));
 807                 }
 808         }
 809
 810         printf(")\n");
 811
 812         return (0);
 813 }
 814
 815 static int
 816 action_show_rdnss(void *msg)
 817 {
 818         struct rdnss *rdn;
 819         struct rdnss_addr *rda;
 820         uint16_t *rdn_cnt;
 821         uint16_t *rda_cnt;
 822         int i;
 823         int j;
 824         char *p;
 825         uint32_t        ltime;
 826         char ntopbuf[INET6_ADDRSTRLEN];
 827         char ssbuf[SSBUFLEN];
 828
 829         p = msg;
 830         rdn_cnt = (uint16_t *)p;
 831         p += sizeof(*rdn_cnt);
 832
 833         if (*rdn_cnt > 0) {
 834                 for (i = 0; i < *rdn_cnt; i++) {
 835                         rdn = (struct rdnss *)p;
 836                         ltime = rdn->rd_ltime;
 837                         p += sizeof(*rdn);
 838
 839                         rda_cnt = (uint16_t *)p;
 840                         p += sizeof(*rda_cnt);
 841                         if (*rda_cnt > 0)
 842                                 for (j = 0; j < *rda_cnt; j++) {
 843                                         rda = (struct rdnss_addr *)p;
 844                                         printf("\t  %s (ltime=%s)\n",
 845                                             inet_ntop(AF_INET6,
 846                                                 &rda->ra_dns,
 847                                                 ntopbuf,
 848                                                 sizeof(ntopbuf)),
 849                                             sec2str(ltime, ssbuf));
 850                                         p += sizeof(*rda);
 851                                 }
 852                 }
 853         }
 854
 855         return (0);
 856 }
 857
 858 static int
 859 action_show_dnssl(void *msg)
 860 {
 861         struct dnssl *dns;
 862         struct dnssl_addr *dna;
 863         uint16_t *dns_cnt;
 864         uint16_t *dna_cnt;
 865         int i;
 866         int j;
 867         char *p;
 868         uint32_t ltime;
 869         char hbuf[NI_MAXHOST];
 870         char ssbuf[SSBUFLEN];
 871
 872         p = msg;
 873         dns_cnt = (uint16_t *)p;
 874         p += sizeof(*dns_cnt);
 875
 876         if (*dns_cnt > 0) {
 877                 for (i = 0; i < *dns_cnt; i++) {
 878                         dns = (struct dnssl *)p;
 879                         ltime = dns->dn_ltime;
 880                         p += sizeof(*dns);
 881
 882                         dna_cnt = (uint16_t *)p;
 883                         p += sizeof(*dna_cnt);
 884                         if (*dna_cnt > 0)
 885                                 for (j = 0; j < *dna_cnt; j++) {
 886                                         dna = (struct dnssl_addr *)p;
 887                                         dname_labeldec(hbuf, sizeof(hbuf),
 888                                             dna->da_dom);
 889                                         printf("\t  %s (ltime=%s)\n",
 890                                             hbuf, sec2str(ltime, ssbuf));
 891                                         p += sizeof(*dna);
 892                                 }
 893                 }
 894         }
 895
 896         return (0);
 897 }
 898
 899 /* Decode domain name label encoding in RFC 1035 Section 3.1 */
 900 static size_t
 901 dname_labeldec(char *dst, size_t dlen, const char *src)
 902 {
 903         size_t len;
 904         const char *src_origin;
 905         const char *src_last;
 906         const char *dst_origin;
 907
 908         src_origin = src;
 909         src_last = strchr(src, '\0');
 910         dst_origin = dst;
 911         memset(dst, '\0', dlen);
 912         while (src && (len = (uint8_t)(*src++) & 0x3f) &&
 913             (src + len) <= src_last) {
 914                 if (dst != dst_origin)
 915                         *dst++ = '.';
 916                 mysyslog(LOG_DEBUG, "<%s> labellen = %zd", __func__, len);
 917                 memcpy(dst, src, len);
 918                 src += len;
 919                 dst += len;
 920         }
 921         *dst = '\0';
 922
 923         return (src - src_origin);
 924 }