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 <stdarg.h>
  57 #include <syslog.h>
  58 #include <time.h>
  59 #include <err.h>
  60
  61 #include "pathnames.h"
  62 #include "rtadvd.h"
  63 #include "if.h"
  64 #include "timer_subr.h"
  65 #include "timer.h"
  66 #include "control.h"
  67 #include "control_client.h"
  68
  69 #define RA_IFSTATUS_INACTIVE    0
  70 #define RA_IFSTATUS_RA_RECV     1
  71 #define RA_IFSTATUS_RA_SEND     2
  72
  73 static int vflag = LOG_ERR;
  74
  75 static void     usage(void);
  76
  77 static int      action_propset(char *);
  78 static int      action_propget(char *, struct ctrl_msg_pl *);
  79 static int      action_plgeneric(int, char *, char *);
  80
  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 **);
  87
  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 *);
  93
  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 *, ...);
  97
  98 static const char *rtpref_str[] = {
  99         "medium",               /* 00 */
 100         "high",                 /* 01 */
 101         "rsv",                  /* 10 */
 102         "low"                   /* 11 */
 103 };
 104
 105 static struct dispatch_table {
 106         const char      *dt_comm;
 107         int (*dt_act)(int, char **);
 108 } dtable[] = {
 109         { "show", action_show },
 110         { "reload", action_reload },
 111         { "shutdown", action_shutdown },
 112         { "enable", action_enable },
 113         { "disable", action_disable },
 114         { NULL, NULL },
 115         { "echo", action_echo },
 116         { "version", action_version },
 117         { NULL, NULL },
 118 };
 119
 120 static char errmsgbuf[1024];
 121 static char *errmsg = NULL;
 122
 123 static void
 124 mysyslog(int priority, const char * restrict fmt, ...)
 125 {
 126         va_list ap;
 127
 128         if (vflag >= priority) {
 129                 va_start(ap, fmt);
 130                 vfprintf(stderr, fmt, ap);
 131                 fprintf(stderr, "\n");
 132                 va_end(ap);
 133         }
 134 }
 135
 136 static void
 137 usage(void)
 138 {
 139         int i;
 140
 141         for (i = 0; (size_t)i < sizeof(dtable)/sizeof(dtable[0]); i++) {
 142                 if (dtable[i].dt_comm == NULL)
 143                         break;
 144                 printf("%s\n", dtable[i].dt_comm);
 145         }
 146
 147         exit(1);
 148 }
 149
 150 int
 151 main(int argc, char *argv[])
 152 {
 153         int i;
 154         int ch;
 155         int (*action)(int, char **) = NULL;
 156         int error;
 157
 158         while ((ch = getopt(argc, argv, "Dv")) != -1) {
 159                 switch (ch) {
 160                 case 'D':
 161                         vflag = LOG_DEBUG;
 162                         break;
 163                 case 'v':
 164                         vflag++;
 165                         break;
 166                 default:
 167                         usage();
 168                 }
 169         }
 170         argc -= optind;
 171         argv += optind;
 172
 173         if (argc == 0)
 174                 usage();
 175
 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;
 180                         break;
 181                 }
 182         }
 183
 184         if (action == NULL)
 185                 usage();
 186
 187         error = (dtable[i].dt_act)(--argc, ++argv);
 188         if (error) {
 189                 fprintf(stderr, "%s failed", dtable[i].dt_comm);
 190                 if (errmsg != NULL)
 191                         fprintf(stderr, ": %s", errmsg);
 192                 fprintf(stderr, ".\n");
 193         }
 194
 195         return (error);
 196 }
 197
 198 static int
 199 csock_client_open(struct sockinfo *s)
 200 {
 201         struct sockaddr_un sun;
 202
 203         if ((s->si_fd = socket(PF_UNIX, SOCK_STREAM, 0)) == -1)
 204                 err(1, "cannot open control socket.");
 205
 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));
 210
 211         if (connect(s->si_fd, (struct sockaddr *)&sun, sizeof(sun)) == -1)
 212                 err(1, "connect: %s", s->si_name);
 213
 214         mysyslog(LOG_DEBUG,
 215             "<%s> connected to %s", __func__, sun.sun_path);
 216
 217         return (0);
 218 }
 219
 220 static int
 221 action_plgeneric(int action, char *plstr, char *buf)
 222 {
 223         struct ctrl_msg_hdr *cm;
 224         struct ctrl_msg_pl cp;
 225         struct sockinfo *s;
 226         char *msg;
 227         char *p;
 228         char *q;
 229
 230         s = &ctrlsock;
 231         csock_client_open(s);
 232
 233         cm = (struct ctrl_msg_hdr *)buf;
 234         msg = (char *)buf + sizeof(*cm);
 235
 236         cm->cm_version = CM_VERSION;
 237         cm->cm_type = action;
 238         cm->cm_len = sizeof(*cm);
 239
 240         if (plstr != NULL) {
 241                 memset(&cp, 0, sizeof(cp));
 242                 p = strchr(plstr, ':');
 243                 q = strchr(plstr, '=');
 244                 if (p != NULL && q != NULL && p > q)
 245                         return (1);
 246
 247                 if (p == NULL) {                /* No : */
 248                         cp.cp_ifname = NULL;
 249                         cp.cp_key = plstr;
 250                 } else if  (p == plstr) {       /* empty */
 251                         cp.cp_ifname = NULL;
 252                         cp.cp_key = plstr + 1;
 253                 } else {
 254                         *p++ = '\0';
 255                         cp.cp_ifname = plstr;
 256                         cp.cp_key = p;
 257                 }
 258                 if (q == NULL)
 259                         cp.cp_val = NULL;
 260                 else {
 261                         *q++ = '\0';
 262                         cp.cp_val = q;
 263                 }
 264                 cm->cm_len += cm_pl2bin(msg, &cp);
 265
 266                 mysyslog(LOG_DEBUG, "<%s> key=%s, val_len=%d, ifname=%s",
 267                     __func__,cp.cp_key, cp.cp_val_len, cp.cp_ifname);
 268         }
 269
 270         return (cm_handler_client(s->si_fd, CM_STATE_MSG_DISPATCH, buf));
 271 }
 272
 273 static int
 274 action_propget(char *argv, struct ctrl_msg_pl *cp)
 275 {
 276         int error;
 277         struct ctrl_msg_hdr *cm;
 278         char buf[CM_MSG_MAXLEN];
 279         char *msg;
 280
 281         memset(cp, 0, sizeof(*cp));
 282         cm = (struct ctrl_msg_hdr *)buf;
 283         msg = (char *)buf + sizeof(*cm);
 284
 285         error = action_plgeneric(CM_TYPE_REQ_GET_PROP, argv, buf);
 286         if (error || cm->cm_len <= sizeof(*cm))
 287                 return (1);
 288
 289         cm_bin2pl(msg, cp);
 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);
 294
 295         return (0);
 296 }
 297
 298 static int
 299 action_propset(char *argv)
 300 {
 301         char buf[CM_MSG_MAXLEN];
 302
 303         return (action_plgeneric(CM_TYPE_REQ_SET_PROP, argv, buf));
 304 }
 305
 306 static int
 307 action_disable(int argc, char **argv)
 308 {
 309         char *action_argv;
 310         char argv_disable[IFNAMSIZ + sizeof(":disable=")];
 311         int i;
 312         int error;
 313
 314         if (argc < 1)
 315                 return (1);
 316
 317         error = 0;
 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);
 322         }
 323
 324         return (error);
 325 }
 326
 327 static int
 328 action_enable(int argc, char **argv)
 329 {
 330         char *action_argv;
 331         char argv_enable[IFNAMSIZ + sizeof(":enable=")];
 332         int i;
 333         int error;
 334
 335         if (argc < 1)
 336                 return (1);
 337
 338         error = 0;
 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);
 343         }
 344
 345         return (error);
 346 }
 347
 348 static int
 349 action_reload(int argc, char **argv)
 350 {
 351         char *action_argv;
 352         char argv_reload[IFNAMSIZ + sizeof(":reload=")];
 353         int i;
 354         int error;
 355
 356         if (argc == 0) {
 357                 action_argv = strdup(":reload=");
 358                 return (action_propset(action_argv));
 359         }
 360
 361         error = 0;
 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);
 366         }
 367
 368         return (error);
 369 }
 370
 371 static int
 372 action_echo(int argc __unused, char **argv __unused)
 373 {
 374         char *action_argv;
 375
 376         action_argv = strdup("echo");
 377         return (action_propset(action_argv));
 378 }
 379
 380 static int
 381 action_shutdown(int argc __unused, char **argv __unused)
 382 {
 383         char *action_argv;
 384
 385         action_argv = strdup("shutdown");
 386         return (action_propset(action_argv));
 387 }
 388
 389 /* XXX */
 390 static int
 391 action_version(int argc __unused, char **argv __unused)
 392 {
 393         char *action_argv;
 394         struct ctrl_msg_pl cp;
 395         int error;
 396
 397         action_argv = strdup(":version=");
 398         error = action_propget(action_argv, &cp);
 399         if (error)
 400                 return (error);
 401
 402         printf("version=%s\n", cp.cp_val);
 403         return (0);
 404 }
 405
 406 static int
 407 action_show(int argc, char **argv)
 408 {
 409         char *action_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];
 419
 420         struct timespec now, ts0, ts;
 421         struct ctrl_msg_pl cp;
 422         struct ifinfo *ifi;
 423         TAILQ_HEAD(, ifinfo) ifl = TAILQ_HEAD_INITIALIZER(ifl);
 424         char *endp;
 425         char *p;
 426         int error;
 427         int i;
 428         int len;
 429
 430         if (argc == 0) {
 431                 action_argv = argv_ifilist;
 432                 error = action_propget(action_argv, &cp);
 433                 if (error)
 434                         return (error);
 435
 436                 p = cp.cp_val;
 437                 endp = p + cp.cp_val_len;
 438                 while (p < endp) {
 439                         ifi = malloc(sizeof(*ifi));
 440                         if (ifi == NULL)
 441                                 return (1);
 442                         memset(ifi, 0, sizeof(*ifi));
 443
 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;
 448                 }
 449         } else {
 450                 for (i = 0; i < argc; i++) {
 451                         ifi = malloc(sizeof(*ifi));
 452                         if (ifi == NULL)
 453                                 return (1);
 454                         memset(ifi, 0, sizeof(*ifi));
 455
 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",
 460                                     ifi->ifi_ifname);
 461                                 errmsg = errmsgbuf;
 462                                 return (1);
 463                         }
 464
 465                         TAILQ_INSERT_TAIL(&ifl, ifi, ifi_next);
 466                 }
 467         }
 468
 469         clock_gettime(CLOCK_REALTIME_FAST, &now);
 470         clock_gettime(CLOCK_MONOTONIC_FAST, &ts);
 471         TS_SUB(&now, &ts, &ts0);
 472
 473         TAILQ_FOREACH(ifi, &ifl, ifi_next) {
 474                 struct ifinfo *ifi_s;
 475                 struct rtadvd_timer *rat;
 476                 struct rainfo *rai;
 477                 struct rtinfo *rti;
 478                 struct prefix *pfx;
 479                 int c;
 480                 int ra_ifstatus;
 481
 482                 sprintf(argv_ifi, "%s:ifi=", ifi->ifi_ifname);
 483                 action_argv = argv_ifi;
 484                 error = action_propget(action_argv, &cp);
 485                 if (error)
 486                         return (error);
 487                 ifi_s = (struct ifinfo *)cp.cp_val;
 488
 489                 if (!(ifi_s->ifi_persist) && vflag < LOG_NOTICE)
 490                         continue;
 491
 492                 printf("%s: flags=<", ifi->ifi_ifname);
 493
 494                 c = 0;
 495                 if (ifi_s->ifi_ifindex == 0)
 496                         c += printf("NONEXISTENT");
 497                 else
 498                         c += printf("%s", (ifi_s->ifi_flags & IFF_UP) ?
 499                             "UP" : "DOWN");
 500                 switch (ifi_s->ifi_state) {
 501                 case IFI_STATE_CONFIGURED:
 502                         c += printf("%s%s", (c) ? "," : "", "CONFIGURED");
 503                         break;
 504                 case IFI_STATE_TRANSITIVE:
 505                         c += printf("%s%s", (c) ? "," : "", "TRANSITIVE");
 506                         break;
 507                 }
 508                 if (ifi_s->ifi_persist)
 509                         c += printf("%s%s", (c) ? "," : "", "PERSIST");
 510                 printf(">");
 511
 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))) {
 516                         /*
 517                          * RA_RECV: ND6_IFF_ACCEPT_RTADV
 518                          * RA_SEND: ip6.forwarding
 519                          */
 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;
 524                         else
 525                                 ra_ifstatus = RA_IFSTATUS_INACTIVE;
 526                 }
 527
 528                 c = 0;
 529                 printf(" status=<");
 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");
 536                 printf("> ");
 537
 538                 switch (ifi_s->ifi_state) {
 539                 case IFI_STATE_CONFIGURED:
 540                 case IFI_STATE_TRANSITIVE:
 541                         break;
 542                 default:
 543                         printf("\n");
 544                         continue;
 545                 }
 546
 547                 printf("mtu %d\n", ifi_s->ifi_phymtu);
 548
 549                 sprintf(argv_rai, "%s:rai=", ifi->ifi_ifname);
 550                 action_argv = argv_rai;
 551
 552                 error = action_propget(action_argv, &cp);
 553                 if (error)
 554                         continue;
 555
 556                 rai = (struct rainfo *)cp.cp_val;
 557
 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)");
 563
 564                 printf("\n");
 565
 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);
 571                 else
 572                         printf("\tAdvLinkMTU: <none>");
 573
 574                 printf(", ");
 575
 576                 printf("Flags: ");
 577                 if (rai->rai_managedflg || rai->rai_otherflg) {
 578                         printf("%s", rai->rai_managedflg ? "M" : "");
 579                         printf("%s", rai->rai_otherflg ? "O" : "");
 580                 } else
 581                         printf("<none>");
 582
 583                 printf(", ");
 584
 585                 printf("Preference: %s\n",
 586                     rtpref_str[(rai->rai_rtpref >> 3) & 0xff]);
 587
 588                 printf("\tReachableTime: %s, ",
 589                     sec2str(rai->rai_reachabletime, ssbuf));
 590                 printf("RetransTimer: %s, "
 591                     "CurHopLimit: %d\n",
 592                     sec2str(rai->rai_retranstimer, ssbuf),
 593                     rai->rai_hoplimit);
 594                 printf("\tAdvIfPrefixes: %s\n",
 595                     rai->rai_advifprefix ? "yes" : "no");
 596
 597                 /* RA timer */
 598                 rat = NULL;
 599                 if (ifi_s->ifi_ra_timer != NULL) {
 600                         sprintf(argv_ifi_ra_timer, "%s:ifi_ra_timer=",
 601                             ifi->ifi_ifname);
 602                         action_argv = argv_ifi_ra_timer;
 603
 604                         error = action_propget(action_argv, &cp);
 605                         if (error)
 606                                 return (error);
 607
 608                         rat = (struct rtadvd_timer *)cp.cp_val;
 609                 }
 610                 printf("\tNext RA send: ");
 611                 if (rat == NULL)
 612                         printf("never\n");
 613                 else {
 614                         ts.tv_sec = rat->rat_tm.tv_sec + ts0.tv_sec;
 615                         printf("%s", ctime(&ts.tv_sec));
 616                 }
 617                 printf("\tLast RA send: ");
 618                 if (ifi_s->ifi_ra_lastsent.tv_sec == 0)
 619                         printf("never\n");
 620                 else {
 621                         ts.tv_sec = ifi_s->ifi_ra_lastsent.tv_sec + ts0.tv_sec;
 622                         printf("%s", ctime(&ts.tv_sec));
 623                 }
 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 timespec now;
 751
 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);
 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 timespec *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 }