ip/ipxfrm.c

   1 /* $USAGI: $ */
   2
   3 /*
   4  * Copyright (C)2004 USAGI/WIDE Project
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20 /*
  21  * based on ip.c, iproute.c
  22  */
  23 /*
  24  * Authors:
  25  *      Masahide NAKAMURA @USAGI
  26  */
  27
  28 #include <alloca.h>
  29 #include <stdio.h>
  30 #include <stdlib.h>
  31 #include <string.h>
  32 #include <sys/types.h>
  33 #include <sys/socket.h>
  34 #include <time.h>
  35 #include <netdb.h>
  36 #include <linux/netlink.h>
  37 #include <linux/rtnetlink.h>
  38 #include <linux/xfrm.h>
  39
  40 #include "utils.h"
  41 #include "xfrm.h"
  42
  43 #define STRBUF_SIZE     (128)
  44 #define STRBUF_CAT(buf, str) \
  45         do { \
  46                 int rest = sizeof(buf) - 1 - strlen(buf); \
  47                 if (rest > 0) { \
  48                         int len = strlen(str); \
  49                         if (len > rest) \
  50                                 len = rest; \
  51                         strncat(buf, str, len); \
  52                         buf[sizeof(buf) - 1] = '\0'; \
  53                 } \
  54         } while(0);
  55
  56 struct xfrm_filter filter;
  57
  58 static void usage(void) __attribute__((noreturn));
  59
  60 static void usage(void)
  61 {
  62         fprintf(stderr,
  63                 "Usage: ip xfrm XFRM-OBJECT { COMMAND | help }\n"
  64                 "where  XFRM-OBJECT := state | policy | monitor\n");
  65         exit(-1);
  66 }
  67
  68 /* This is based on utils.c(inet_addr_match) */
  69 int xfrm_addr_match(xfrm_address_t *x1, xfrm_address_t *x2, int bits)
  70 {
  71         __u32 *a1 = (__u32 *)x1;
  72         __u32 *a2 = (__u32 *)x2;
  73         int words = bits >> 0x05;
  74
  75         bits &= 0x1f;
  76
  77         if (words)
  78                 if (memcmp(a1, a2, words << 2))
  79                         return -1;
  80
  81         if (bits) {
  82                 __u32 w1, w2;
  83                 __u32 mask;
  84
  85                 w1 = a1[words];
  86                 w2 = a2[words];
  87
  88                 mask = htonl((0xffffffff) << (0x20 - bits));
  89
  90                 if ((w1 ^ w2) & mask)
  91                         return 1;
  92         }
  93
  94         return 0;
  95 }
  96
  97 int xfrm_xfrmproto_is_ipsec(__u8 proto)
  98 {
  99         return (proto ==  IPPROTO_ESP ||
 100                 proto ==  IPPROTO_AH  ||
 101                 proto ==  IPPROTO_COMP);
 102 }
 103
 104 int xfrm_xfrmproto_is_ro(__u8 proto)
 105 {
 106         return (proto ==  IPPROTO_ROUTING ||
 107                 proto ==  IPPROTO_DSTOPTS);
 108 }
 109
 110 struct typeent {
 111         const char *t_name;
 112         int t_type;
 113 };
 114
 115 static const struct typeent xfrmproto_types[]= {
 116         { "esp", IPPROTO_ESP }, { "ah", IPPROTO_AH }, { "comp", IPPROTO_COMP },
 117         { "route2", IPPROTO_ROUTING }, { "hao", IPPROTO_DSTOPTS },
 118         { "ipsec-any", IPSEC_PROTO_ANY },
 119         { NULL, -1 }
 120 };
 121
 122 int xfrm_xfrmproto_getbyname(char *name)
 123 {
 124         int i;
 125
 126         for (i = 0; ; i++) {
 127                 const struct typeent *t = &xfrmproto_types[i];
 128                 if (!t->t_name || t->t_type == -1)
 129                         break;
 130
 131                 if (strcmp(t->t_name, name) == 0)
 132                         return t->t_type;
 133         }
 134
 135         return -1;
 136 }
 137
 138 const char *strxf_xfrmproto(__u8 proto)
 139 {
 140         static char str[16];
 141         int i;
 142
 143         for (i = 0; ; i++) {
 144                 const struct typeent *t = &xfrmproto_types[i];
 145                 if (!t->t_name || t->t_type == -1)
 146                         break;
 147
 148                 if (t->t_type == proto)
 149                         return t->t_name;
 150         }
 151
 152         sprintf(str, "%u", proto);
 153         return str;
 154 }
 155
 156 static const struct typeent algo_types[]= {
 157         { "enc", XFRMA_ALG_CRYPT }, { "auth", XFRMA_ALG_AUTH },
 158         { "comp", XFRMA_ALG_COMP }, { "aead", XFRMA_ALG_AEAD },
 159         { "auth-trunc", XFRMA_ALG_AUTH_TRUNC },
 160         { NULL, -1 }
 161 };
 162
 163 int xfrm_algotype_getbyname(char *name)
 164 {
 165         int i;
 166
 167         for (i = 0; ; i++) {
 168                 const struct typeent *t = &algo_types[i];
 169                 if (!t->t_name || t->t_type == -1)
 170                         break;
 171
 172                 if (strcmp(t->t_name, name) == 0)
 173                         return t->t_type;
 174         }
 175
 176         return -1;
 177 }
 178
 179 const char *strxf_algotype(int type)
 180 {
 181         static char str[32];
 182         int i;
 183
 184         for (i = 0; ; i++) {
 185                 const struct typeent *t = &algo_types[i];
 186                 if (!t->t_name || t->t_type == -1)
 187                         break;
 188
 189                 if (t->t_type == type)
 190                         return t->t_name;
 191         }
 192
 193         sprintf(str, "%d", type);
 194         return str;
 195 }
 196
 197 const char *strxf_mask8(__u8 mask)
 198 {
 199         static char str[16];
 200         const int sn = sizeof(mask) * 8 - 1;
 201         __u8 b;
 202         int i = 0;
 203
 204         for (b = (1 << sn); b > 0; b >>= 1)
 205                 str[i++] = ((b & mask) ? '1' : '0');
 206         str[i] = '\0';
 207
 208         return str;
 209 }
 210
 211 const char *strxf_mask32(__u32 mask)
 212 {
 213         static char str[16];
 214
 215         sprintf(str, "%.8x", mask);
 216
 217         return str;
 218 }
 219
 220 const char *strxf_share(__u8 share)
 221 {
 222         static char str[32];
 223
 224         switch (share) {
 225         case XFRM_SHARE_ANY:
 226                 strcpy(str, "any");
 227                 break;
 228         case XFRM_SHARE_SESSION:
 229                 strcpy(str, "session");
 230                 break;
 231         case XFRM_SHARE_USER:
 232                 strcpy(str, "user");
 233                 break;
 234         case XFRM_SHARE_UNIQUE:
 235                 strcpy(str, "unique");
 236                 break;
 237         default:
 238                 sprintf(str, "%u", share);
 239                 break;
 240         }
 241
 242         return str;
 243 }
 244
 245 const char *strxf_proto(__u8 proto)
 246 {
 247         static char buf[32];
 248         struct protoent *pp;
 249         const char *p;
 250
 251         pp = getprotobynumber(proto);
 252         if (pp)
 253                 p = pp->p_name;
 254         else {
 255                 sprintf(buf, "%u", proto);
 256                 p = buf;
 257         }
 258
 259         return p;
 260 }
 261
 262 const char *strxf_ptype(__u8 ptype)
 263 {
 264         static char str[16];
 265
 266         switch (ptype) {
 267         case XFRM_POLICY_TYPE_MAIN:
 268                 strcpy(str, "main");
 269                 break;
 270         case XFRM_POLICY_TYPE_SUB:
 271                 strcpy(str, "sub");
 272                 break;
 273         default:
 274                 sprintf(str, "%u", ptype);
 275                 break;
 276         }
 277
 278         return str;
 279 }
 280
 281 void xfrm_id_info_print(xfrm_address_t *saddr, struct xfrm_id *id,
 282                         __u8 mode, __u32 reqid, __u16 family, int force_spi,
 283                         FILE *fp, const char *prefix, const char *title)
 284 {
 285         char abuf[256];
 286
 287         if (title)
 288                 fputs(title, fp);
 289
 290         memset(abuf, '\0', sizeof(abuf));
 291         fprintf(fp, "src %s ", rt_addr_n2a(family, sizeof(*saddr),
 292                                            saddr, abuf, sizeof(abuf)));
 293         memset(abuf, '\0', sizeof(abuf));
 294         fprintf(fp, "dst %s", rt_addr_n2a(family, sizeof(id->daddr),
 295                                           &id->daddr, abuf, sizeof(abuf)));
 296         fprintf(fp, "%s", _SL_);
 297
 298         if (prefix)
 299                 fputs(prefix, fp);
 300         fprintf(fp, "\t");
 301
 302         fprintf(fp, "proto %s ", strxf_xfrmproto(id->proto));
 303
 304         if (show_stats > 0 || force_spi || id->spi) {
 305                 __u32 spi = ntohl(id->spi);
 306                 fprintf(fp, "spi 0x%08x", spi);
 307                 if (show_stats > 0)
 308                         fprintf(fp, "(%u)", spi);
 309                 fprintf(fp, " ");
 310         }
 311
 312         fprintf(fp, "reqid %u", reqid);
 313         if (show_stats > 0)
 314                 fprintf(fp, "(0x%08x)", reqid);
 315         fprintf(fp, " ");
 316
 317         fprintf(fp, "mode ");
 318         switch (mode) {
 319         case XFRM_MODE_TRANSPORT:
 320                 fprintf(fp, "transport");
 321                 break;
 322         case XFRM_MODE_TUNNEL:
 323                 fprintf(fp, "tunnel");
 324                 break;
 325         case XFRM_MODE_ROUTEOPTIMIZATION:
 326                 fprintf(fp, "ro");
 327                 break;
 328         case XFRM_MODE_IN_TRIGGER:
 329                 fprintf(fp, "in_trigger");
 330                 break;
 331         case XFRM_MODE_BEET:
 332                 fprintf(fp, "beet");
 333                 break;
 334         default:
 335                 fprintf(fp, "%u", mode);
 336                 break;
 337         }
 338         fprintf(fp, "%s", _SL_);
 339 }
 340
 341 static const char *strxf_limit(__u64 limit)
 342 {
 343         static char str[32];
 344         if (limit == XFRM_INF)
 345                 strcpy(str, "(INF)");
 346         else
 347                 sprintf(str, "%llu", (unsigned long long) limit);
 348
 349         return str;
 350 }
 351
 352 void xfrm_stats_print(struct xfrm_stats *s, FILE *fp, const char *prefix)
 353 {
 354         if (prefix)
 355                 fputs(prefix, fp);
 356         fprintf(fp, "stats:%s", _SL_);
 357
 358         if (prefix)
 359                 fputs(prefix, fp);
 360         fprintf(fp, "  replay-window %u replay %u failed %u%s",
 361                 s->replay_window, s->replay, s->integrity_failed, _SL_);
 362 }
 363
 364 static const char *strxf_time(__u64 time)
 365 {
 366         static char str[32];
 367
 368         if (time == 0)
 369                 strcpy(str, "-");
 370         else {
 371                 time_t t;
 372                 struct tm *tp;
 373
 374                 /* XXX: treat time in the same manner of kernel's
 375                  * net/xfrm/xfrm_{user,state}.c
 376                  */
 377                 t = (long)time;
 378                 tp = localtime(&t);
 379
 380                 strftime(str, sizeof(str), "%Y-%m-%d %T", tp);
 381         }
 382
 383         return str;
 384 }
 385
 386 void xfrm_lifetime_print(struct xfrm_lifetime_cfg *cfg,
 387                          struct xfrm_lifetime_cur *cur,
 388                          FILE *fp, const char *prefix)
 389 {
 390         if (cfg) {
 391                 if (prefix)
 392                         fputs(prefix, fp);
 393                 fprintf(fp, "lifetime config:%s",_SL_);
 394
 395                 if (prefix)
 396                         fputs(prefix, fp);
 397                 fprintf(fp, "  limit: soft %s(bytes),",
 398                         strxf_limit(cfg->soft_byte_limit));
 399                 fprintf(fp, " hard %s(bytes)%s",
 400                         strxf_limit(cfg->hard_byte_limit), _SL_);
 401
 402                 if (prefix)
 403                         fputs(prefix, fp);
 404                 fprintf(fp, "  limit: soft %s(packets),",
 405                         strxf_limit(cfg->soft_packet_limit));
 406                 fprintf(fp, " hard %s(packets)%s",
 407                         strxf_limit(cfg->hard_packet_limit), _SL_);
 408
 409                 if (prefix)
 410                         fputs(prefix, fp);
 411                 fprintf(fp, "  expire add: soft %llu(sec), hard %llu(sec)%s",
 412                         (unsigned long long) cfg->soft_add_expires_seconds,
 413                         (unsigned long long) cfg->hard_add_expires_seconds,
 414                         _SL_);
 415
 416                 if (prefix)
 417                         fputs(prefix, fp);
 418                 fprintf(fp, "  expire use: soft %llu(sec), hard %llu(sec)%s",
 419                         (unsigned long long) cfg->soft_use_expires_seconds,
 420                         (unsigned long long) cfg->hard_use_expires_seconds,
 421                         _SL_);
 422         }
 423         if (cur) {
 424                 if (prefix)
 425                         fputs(prefix, fp);
 426                 fprintf(fp, "lifetime current:%s", _SL_);
 427
 428                 if (prefix)
 429                         fputs(prefix, fp);
 430                 fprintf(fp, "  %llu(bytes), %llu(packets)%s",
 431                         (unsigned long long) cur->bytes,
 432                         (unsigned long long) cur->packets,
 433                          _SL_);
 434
 435                 if (prefix)
 436                         fputs(prefix, fp);
 437                 fprintf(fp, "  add %s ", strxf_time(cur->add_time));
 438                 fprintf(fp, "use %s%s", strxf_time(cur->use_time), _SL_);
 439         }
 440 }
 441
 442 void xfrm_selector_print(struct xfrm_selector *sel, __u16 family,
 443                          FILE *fp, const char *prefix)
 444 {
 445         char abuf[256];
 446         __u16 f;
 447
 448         f = sel->family;
 449         if (f == AF_UNSPEC)
 450                 f = family;
 451         if (f == AF_UNSPEC)
 452                 f = preferred_family;
 453
 454         if (prefix)
 455                 fputs(prefix, fp);
 456
 457         memset(abuf, '\0', sizeof(abuf));
 458         fprintf(fp, "src %s/%u ", rt_addr_n2a(f, sizeof(sel->saddr),
 459                                               &sel->saddr, abuf, sizeof(abuf)),
 460                 sel->prefixlen_s);
 461
 462         memset(abuf, '\0', sizeof(abuf));
 463         fprintf(fp, "dst %s/%u ", rt_addr_n2a(f, sizeof(sel->daddr),
 464                                               &sel->daddr, abuf, sizeof(abuf)),
 465                 sel->prefixlen_d);
 466
 467         if (sel->proto)
 468                 fprintf(fp, "proto %s ", strxf_proto(sel->proto));
 469         switch (sel->proto) {
 470         case IPPROTO_TCP:
 471         case IPPROTO_UDP:
 472         case IPPROTO_SCTP:
 473         case IPPROTO_DCCP:
 474         default: /* XXX */
 475                 if (sel->sport_mask)
 476                         fprintf(fp, "sport %u ", ntohs(sel->sport));
 477                 if (sel->dport_mask)
 478                         fprintf(fp, "dport %u ", ntohs(sel->dport));
 479                 break;
 480         case IPPROTO_ICMP:
 481         case IPPROTO_ICMPV6:
 482                 /* type/code is stored at sport/dport in selector */
 483                 if (sel->sport_mask)
 484                         fprintf(fp, "type %u ", ntohs(sel->sport));
 485                 if (sel->dport_mask)
 486                         fprintf(fp, "code %u ", ntohs(sel->dport));
 487                 break;
 488         case IPPROTO_GRE:
 489                 if (sel->sport_mask || sel->dport_mask)
 490                         fprintf(fp, "key %u ",
 491                                 (((__u32)ntohs(sel->sport)) << 16) +
 492                                 ntohs(sel->dport));
 493                 break;
 494         case IPPROTO_MH:
 495                 if (sel->sport_mask)
 496                         fprintf(fp, "type %u ", ntohs(sel->sport));
 497                 if (sel->dport_mask) {
 498                         if (show_stats > 0)
 499                                 fprintf(fp, "(dport) 0x%.4x ", sel->dport);
 500                 }
 501                 break;
 502         }
 503
 504         if (sel->ifindex > 0)
 505                 fprintf(fp, "dev %s ", ll_index_to_name(sel->ifindex));
 506
 507         if (show_stats > 0)
 508                 fprintf(fp, "uid %u", sel->user);
 509
 510         fprintf(fp, "%s", _SL_);
 511 }
 512
 513 static void __xfrm_algo_print(struct xfrm_algo *algo, int type, int len,
 514                               FILE *fp, const char *prefix, int newline)
 515 {
 516         int keylen;
 517         int i;
 518
 519         if (prefix)
 520                 fputs(prefix, fp);
 521
 522         fprintf(fp, "%s ", strxf_algotype(type));
 523
 524         if (len < sizeof(*algo)) {
 525                 fprintf(fp, "(ERROR truncated)");
 526                 goto fin;
 527         }
 528         len -= sizeof(*algo);
 529
 530         fprintf(fp, "%s ", algo->alg_name);
 531
 532         keylen = algo->alg_key_len / 8;
 533         if (len < keylen) {
 534                 fprintf(fp, "(ERROR truncated)");
 535                 goto fin;
 536         }
 537
 538         fprintf(fp, "0x");
 539         for (i = 0; i < keylen; i ++)
 540                 fprintf(fp, "%.2x", (unsigned char)algo->alg_key[i]);
 541
 542         if (show_stats > 0)
 543                 fprintf(fp, " (%d bits)", algo->alg_key_len);
 544
 545  fin:
 546         if (newline)
 547                 fprintf(fp, "%s", _SL_);
 548 }
 549
 550 static inline void xfrm_algo_print(struct xfrm_algo *algo, int type, int len,
 551                                    FILE *fp, const char *prefix)
 552 {
 553         return __xfrm_algo_print(algo, type, len, fp, prefix, 1);
 554 }
 555
 556 static void xfrm_aead_print(struct xfrm_algo_aead *algo, int len,
 557                             FILE *fp, const char *prefix)
 558 {
 559         struct xfrm_algo *base_algo = alloca(sizeof(*base_algo) + algo->alg_key_len / 8);
 560
 561         memcpy(base_algo->alg_name, algo->alg_name, sizeof(base_algo->alg_name));
 562         base_algo->alg_key_len = algo->alg_key_len;
 563         memcpy(base_algo->alg_key, algo->alg_key, algo->alg_key_len / 8);
 564
 565         __xfrm_algo_print(base_algo, XFRMA_ALG_AEAD, len, fp, prefix, 0);
 566
 567         fprintf(fp, " %d", algo->alg_icv_len);
 568
 569         fprintf(fp, "%s", _SL_);
 570 }
 571
 572 static void xfrm_auth_trunc_print(struct xfrm_algo_auth *algo, int len,
 573                                   FILE *fp, const char *prefix)
 574 {
 575         struct xfrm_algo *base_algo = alloca(sizeof(*base_algo) + algo->alg_key_len / 8);
 576
 577         memcpy(base_algo->alg_name, algo->alg_name, sizeof(base_algo->alg_name));
 578         base_algo->alg_key_len = algo->alg_key_len;
 579         memcpy(base_algo->alg_key, algo->alg_key, algo->alg_key_len / 8);
 580
 581         __xfrm_algo_print(base_algo, XFRMA_ALG_AUTH_TRUNC, len, fp, prefix, 0);
 582
 583         fprintf(fp, " %d", algo->alg_trunc_len);
 584
 585         fprintf(fp, "%s", _SL_);
 586 }
 587
 588 static void xfrm_tmpl_print(struct xfrm_user_tmpl *tmpls, int len,
 589                             __u16 family, FILE *fp, const char *prefix)
 590 {
 591         int ntmpls = len / sizeof(struct xfrm_user_tmpl);
 592         int i;
 593
 594         if (ntmpls <= 0) {
 595                 if (prefix)
 596                         fputs(prefix, fp);
 597                 fprintf(fp, "(ERROR \"tmpl\" truncated)");
 598                 fprintf(fp, "%s", _SL_);
 599                 return;
 600         }
 601
 602         for (i = 0; i < ntmpls; i++) {
 603                 struct xfrm_user_tmpl *tmpl = &tmpls[i];
 604
 605                 if (prefix)
 606                         fputs(prefix, fp);
 607
 608                 xfrm_id_info_print(&tmpl->saddr, &tmpl->id, tmpl->mode,
 609                                    tmpl->reqid, tmpl->family, 0, fp, prefix, "tmpl ");
 610
 611                 if (show_stats > 0 || tmpl->optional) {
 612                         if (prefix)
 613                                 fputs(prefix, fp);
 614                         fprintf(fp, "\t");
 615                         switch (tmpl->optional) {
 616                         case 0:
 617                                 if (show_stats > 0)
 618                                         fprintf(fp, "level required ");
 619                                 break;
 620                         case 1:
 621                                 fprintf(fp, "level use ");
 622                                 break;
 623                         default:
 624                                 fprintf(fp, "level %u ", tmpl->optional);
 625                                 break;
 626                         }
 627
 628                         if (show_stats > 0)
 629                                 fprintf(fp, "share %s ", strxf_share(tmpl->share));
 630
 631                         fprintf(fp, "%s", _SL_);
 632                 }
 633
 634                 if (show_stats > 0) {
 635                         if (prefix)
 636                                 fputs(prefix, fp);
 637                         fprintf(fp, "\t");
 638                         fprintf(fp, "%s-mask %s ",
 639                                 strxf_algotype(XFRMA_ALG_CRYPT),
 640                                 strxf_mask32(tmpl->ealgos));
 641                         fprintf(fp, "%s-mask %s ",
 642                                 strxf_algotype(XFRMA_ALG_AUTH),
 643                                 strxf_mask32(tmpl->aalgos));
 644                         fprintf(fp, "%s-mask %s",
 645                                 strxf_algotype(XFRMA_ALG_COMP),
 646                                 strxf_mask32(tmpl->calgos));
 647
 648                         fprintf(fp, "%s", _SL_);
 649                 }
 650         }
 651 }
 652
 653 int xfrm_parse_mark(struct xfrm_mark *mark, int *argcp, char ***argvp)
 654 {
 655         int argc = *argcp;
 656         char **argv = *argvp;
 657
 658         NEXT_ARG();
 659         if (get_u32(&mark->v, *argv, 0)) {
 660                 invarg("Illegal \"mark\" value\n", *argv);
 661         }
 662         if (argc > 1)
 663                 NEXT_ARG();
 664         else { /* last entry on parse line */
 665                 mark->m = 0xffffffff;
 666                 goto done;
 667         }
 668
 669         if (strcmp(*argv, "mask") == 0) {
 670                 NEXT_ARG();
 671                 if (get_u32(&mark->m, *argv, 0)) {
 672                         invarg("Illegal \"mark\" mask\n", *argv);
 673                 }
 674         } else {
 675                 mark->m = 0xffffffff;
 676                 PREV_ARG();
 677         }
 678
 679 done:
 680         *argcp = argc;
 681         *argvp = argv;
 682
 683         return 0;
 684 }
 685
 686 void xfrm_xfrma_print(struct rtattr *tb[], __u16 family,
 687                       FILE *fp, const char *prefix)
 688 {
 689         if (tb[XFRMA_MARK]) {
 690                 struct rtattr *rta = tb[XFRMA_MARK];
 691                 struct xfrm_mark *m = (struct xfrm_mark *) RTA_DATA(rta);
 692                 fprintf(fp, "\tmark %d/0x%x\n", m->v, m->m);
 693         }
 694
 695         if (tb[XFRMA_ALG_AUTH] && !tb[XFRMA_ALG_AUTH_TRUNC]) {
 696                 struct rtattr *rta = tb[XFRMA_ALG_AUTH];
 697                 xfrm_algo_print((struct xfrm_algo *) RTA_DATA(rta),
 698                                 XFRMA_ALG_AUTH, RTA_PAYLOAD(rta), fp, prefix);
 699         }
 700
 701         if (tb[XFRMA_ALG_AUTH_TRUNC]) {
 702                 struct rtattr *rta = tb[XFRMA_ALG_AUTH_TRUNC];
 703                 xfrm_auth_trunc_print((struct xfrm_algo_auth *) RTA_DATA(rta),
 704                                       RTA_PAYLOAD(rta), fp, prefix);
 705         }
 706
 707         if (tb[XFRMA_ALG_AEAD]) {
 708                 struct rtattr *rta = tb[XFRMA_ALG_AEAD];
 709                 xfrm_aead_print((struct xfrm_algo_aead *)RTA_DATA(rta),
 710                                 RTA_PAYLOAD(rta), fp, prefix);
 711         }
 712
 713         if (tb[XFRMA_ALG_CRYPT]) {
 714                 struct rtattr *rta = tb[XFRMA_ALG_CRYPT];
 715                 xfrm_algo_print((struct xfrm_algo *) RTA_DATA(rta),
 716                                 XFRMA_ALG_CRYPT, RTA_PAYLOAD(rta), fp, prefix);
 717         }
 718
 719         if (tb[XFRMA_ALG_COMP]) {
 720                 struct rtattr *rta = tb[XFRMA_ALG_COMP];
 721                 xfrm_algo_print((struct xfrm_algo *) RTA_DATA(rta),
 722                                 XFRMA_ALG_COMP, RTA_PAYLOAD(rta), fp, prefix);
 723         }
 724
 725         if (tb[XFRMA_ENCAP]) {
 726                 struct xfrm_encap_tmpl *e;
 727                 char abuf[256];
 728
 729                 if (prefix)
 730                         fputs(prefix, fp);
 731                 fprintf(fp, "encap ");
 732
 733                 if (RTA_PAYLOAD(tb[XFRMA_ENCAP]) < sizeof(*e)) {
 734                         fprintf(fp, "(ERROR truncated)");
 735                         fprintf(fp, "%s", _SL_);
 736                         return;
 737                 }
 738                 e = (struct xfrm_encap_tmpl *) RTA_DATA(tb[XFRMA_ENCAP]);
 739
 740                 fprintf(fp, "type ");
 741                 switch (e->encap_type) {
 742                 case 1:
 743                         fprintf(fp, "espinudp-nonike ");
 744                         break;
 745                 case 2:
 746                         fprintf(fp, "espinudp ");
 747                         break;
 748                 default:
 749                         fprintf(fp, "%u ", e->encap_type);
 750                         break;
 751                 }
 752                 fprintf(fp, "sport %u ", ntohs(e->encap_sport));
 753                 fprintf(fp, "dport %u ", ntohs(e->encap_dport));
 754
 755                 memset(abuf, '\0', sizeof(abuf));
 756                 fprintf(fp, "addr %s",
 757                         rt_addr_n2a(family, sizeof(e->encap_oa),
 758                                     &e->encap_oa, abuf, sizeof(abuf)));
 759                 fprintf(fp, "%s", _SL_);
 760         }
 761
 762         if (tb[XFRMA_TMPL]) {
 763                 struct rtattr *rta = tb[XFRMA_TMPL];
 764                 xfrm_tmpl_print((struct xfrm_user_tmpl *) RTA_DATA(rta),
 765                                 RTA_PAYLOAD(rta), family, fp, prefix);
 766         }
 767
 768         if (tb[XFRMA_COADDR]) {
 769                 char abuf[256];
 770                 xfrm_address_t *coa;
 771
 772                 if (prefix)
 773                         fputs(prefix, fp);
 774                 fprintf(fp, "coa ");
 775
 776                 coa = (xfrm_address_t *)RTA_DATA(tb[XFRMA_COADDR]);
 777
 778                 if (RTA_PAYLOAD(tb[XFRMA_COADDR]) < sizeof(*coa)) {
 779                         fprintf(fp, "(ERROR truncated)");
 780                         fprintf(fp, "%s", _SL_);
 781                         return;
 782                 }
 783
 784                 memset(abuf, '\0', sizeof(abuf));
 785                 fprintf(fp, "%s",
 786                         rt_addr_n2a(family, sizeof(*coa), coa,
 787                                     abuf, sizeof(abuf)));
 788                 fprintf(fp, "%s", _SL_);
 789         }
 790
 791         if (tb[XFRMA_LASTUSED]) {
 792                 __u64 lastused;
 793
 794                 if (prefix)
 795                         fputs(prefix, fp);
 796                 fprintf(fp, "lastused ");
 797
 798                 if (RTA_PAYLOAD(tb[XFRMA_LASTUSED]) < sizeof(lastused)) {
 799                         fprintf(fp, "(ERROR truncated)");
 800                         fprintf(fp, "%s", _SL_);
 801                         return;
 802                 }
 803
 804                 lastused = rta_getattr_u64(tb[XFRMA_LASTUSED]);
 805
 806                 fprintf(fp, "%s", strxf_time(lastused));
 807                 fprintf(fp, "%s", _SL_);
 808         }
 809
 810 }
 811
 812 static int xfrm_selector_iszero(struct xfrm_selector *s)
 813 {
 814         struct xfrm_selector s0;
 815
 816         memset(&s0, 0, sizeof(s0));
 817
 818         return (memcmp(&s0, s, sizeof(s0)) == 0);
 819 }
 820
 821 void xfrm_state_info_print(struct xfrm_usersa_info *xsinfo,
 822                             struct rtattr *tb[], FILE *fp, const char *prefix,
 823                             const char *title)
 824 {
 825         char buf[STRBUF_SIZE];
 826         int force_spi = xfrm_xfrmproto_is_ipsec(xsinfo->id.proto);
 827
 828         memset(buf, '\0', sizeof(buf));
 829
 830         xfrm_id_info_print(&xsinfo->saddr, &xsinfo->id, xsinfo->mode,
 831                            xsinfo->reqid, xsinfo->family, force_spi, fp,
 832                            prefix, title);
 833
 834         if (prefix)
 835                 STRBUF_CAT(buf, prefix);
 836         STRBUF_CAT(buf, "\t");
 837
 838         fputs(buf, fp);
 839         fprintf(fp, "replay-window %u ", xsinfo->replay_window);
 840         if (show_stats > 0)
 841                 fprintf(fp, "seq 0x%08u ", xsinfo->seq);
 842         if (show_stats > 0 || xsinfo->flags) {
 843                 __u8 flags = xsinfo->flags;
 844
 845                 fprintf(fp, "flag ");
 846                 XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_NOECN, "noecn");
 847                 XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_DECAP_DSCP, "decap-dscp");
 848                 XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_NOPMTUDISC, "nopmtudisc");
 849                 XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_WILDRECV, "wildrecv");
 850                 XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_ICMP, "icmp");
 851                 XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_AF_UNSPEC, "af-unspec");
 852                 XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_ALIGN4, "align4");
 853                 if (flags)
 854                         fprintf(fp, "%x", flags);
 855         }
 856         if (show_stats > 0)
 857                 fprintf(fp, " (0x%s)", strxf_mask8(xsinfo->flags));
 858         fprintf(fp, "%s", _SL_);
 859
 860         xfrm_xfrma_print(tb, xsinfo->family, fp, buf);
 861
 862         if (!xfrm_selector_iszero(&xsinfo->sel)) {
 863                 char sbuf[STRBUF_SIZE];
 864
 865                 memcpy(sbuf, buf, sizeof(sbuf));
 866                 STRBUF_CAT(sbuf, "sel ");
 867
 868                 xfrm_selector_print(&xsinfo->sel, xsinfo->family, fp, sbuf);
 869         }
 870
 871         if (show_stats > 0) {
 872                 xfrm_lifetime_print(&xsinfo->lft, &xsinfo->curlft, fp, buf);
 873                 xfrm_stats_print(&xsinfo->stats, fp, buf);
 874         }
 875
 876         if (tb[XFRMA_SEC_CTX]) {
 877                 struct xfrm_user_sec_ctx *sctx;
 878
 879                 fprintf(fp, "\tsecurity context ");
 880
 881                 if (RTA_PAYLOAD(tb[XFRMA_SEC_CTX]) < sizeof(*sctx))
 882                         fprintf(fp, "(ERROR truncated)");
 883
 884                 sctx = (struct xfrm_user_sec_ctx *)RTA_DATA(tb[XFRMA_SEC_CTX]);
 885
 886                 fprintf(fp, "%s %s", (char *)(sctx + 1), _SL_);
 887         }
 888
 889 }
 890
 891 void xfrm_policy_info_print(struct xfrm_userpolicy_info *xpinfo,
 892                             struct rtattr *tb[], FILE *fp, const char *prefix,
 893                             const char *title)
 894 {
 895         char buf[STRBUF_SIZE];
 896
 897         memset(buf, '\0', sizeof(buf));
 898
 899         xfrm_selector_print(&xpinfo->sel, preferred_family, fp, title);
 900
 901         if (tb[XFRMA_SEC_CTX]) {
 902                 struct xfrm_user_sec_ctx *sctx;
 903
 904                 fprintf(fp, "\tsecurity context ");
 905
 906                 if (RTA_PAYLOAD(tb[XFRMA_SEC_CTX]) < sizeof(*sctx))
 907                         fprintf(fp, "(ERROR truncated)");
 908
 909                 sctx = (struct xfrm_user_sec_ctx *)RTA_DATA(tb[XFRMA_SEC_CTX]);
 910
 911                 fprintf(fp, "%s ", (char *)(sctx + 1));
 912                 fprintf(fp, "%s", _SL_);
 913         }
 914
 915         if (prefix)
 916                 STRBUF_CAT(buf, prefix);
 917         STRBUF_CAT(buf, "\t");
 918
 919         fputs(buf, fp);
 920         if (xpinfo->dir >= XFRM_POLICY_MAX) {
 921                 xpinfo->dir -= XFRM_POLICY_MAX;
 922                 fprintf(fp, "socket ");
 923         } else
 924                 fprintf(fp, "dir ");
 925
 926         switch (xpinfo->dir) {
 927         case XFRM_POLICY_IN:
 928                 fprintf(fp, "in");
 929                 break;
 930         case XFRM_POLICY_OUT:
 931                 fprintf(fp, "out");
 932                 break;
 933         case XFRM_POLICY_FWD:
 934                 fprintf(fp, "fwd");
 935                 break;
 936         default:
 937                 fprintf(fp, "%u", xpinfo->dir);
 938                 break;
 939         }
 940         fprintf(fp, " ");
 941
 942         switch (xpinfo->action) {
 943         case XFRM_POLICY_ALLOW:
 944                 if (show_stats > 0)
 945                         fprintf(fp, "action allow ");
 946                 break;
 947         case XFRM_POLICY_BLOCK:
 948                 fprintf(fp, "action block ");
 949                 break;
 950         default:
 951                 fprintf(fp, "action %u ", xpinfo->action);
 952                 break;
 953         }
 954
 955         if (show_stats)
 956                 fprintf(fp, "index %u ", xpinfo->index);
 957         fprintf(fp, "priority %u ", xpinfo->priority);
 958
 959         if (tb[XFRMA_POLICY_TYPE]) {
 960                 struct xfrm_userpolicy_type *upt;
 961
 962                 fprintf(fp, "ptype ");
 963
 964                 if (RTA_PAYLOAD(tb[XFRMA_POLICY_TYPE]) < sizeof(*upt))
 965                         fprintf(fp, "(ERROR truncated)");
 966
 967                 upt = (struct xfrm_userpolicy_type *)RTA_DATA(tb[XFRMA_POLICY_TYPE]);
 968                 fprintf(fp, "%s ", strxf_ptype(upt->type));
 969         }
 970
 971         if (show_stats > 0)
 972                 fprintf(fp, "share %s ", strxf_share(xpinfo->share));
 973
 974         if (show_stats > 0 || xpinfo->flags) {
 975                 __u8 flags = xpinfo->flags;
 976
 977                 fprintf(fp, "flag ");
 978                 XFRM_FLAG_PRINT(fp, flags, XFRM_POLICY_LOCALOK, "localok");
 979                 XFRM_FLAG_PRINT(fp, flags, XFRM_POLICY_ICMP, "icmp");
 980                 if (flags)
 981                         fprintf(fp, "%x", flags);
 982         }
 983         if (show_stats > 0)
 984                 fprintf(fp, " (0x%s)", strxf_mask8(xpinfo->flags));
 985         fprintf(fp, "%s", _SL_);
 986
 987         if (show_stats > 0)
 988                 xfrm_lifetime_print(&xpinfo->lft, &xpinfo->curlft, fp, buf);
 989
 990         xfrm_xfrma_print(tb, xpinfo->sel.family, fp, buf);
 991 }
 992
 993 int xfrm_id_parse(xfrm_address_t *saddr, struct xfrm_id *id, __u16 *family,
 994                   int loose, int *argcp, char ***argvp)
 995 {
 996         int argc = *argcp;
 997         char **argv = *argvp;
 998         inet_prefix dst;
 999         inet_prefix src;
1000
1001         memset(&dst, 0, sizeof(dst));
1002         memset(&src, 0, sizeof(src));
1003
1004         while (1) {
1005                 if (strcmp(*argv, "src") == 0) {
1006                         NEXT_ARG();
1007
1008                         get_prefix(&src, *argv, preferred_family);
1009                         if (src.family == AF_UNSPEC)
1010                                 invarg("\"src\" address family is AF_UNSPEC", *argv);
1011                         if (family)
1012                                 *family = src.family;
1013
1014                         memcpy(saddr, &src.data, sizeof(*saddr));
1015
1016                         filter.id_src_mask = src.bitlen;
1017
1018                 } else if (strcmp(*argv, "dst") == 0) {
1019                         NEXT_ARG();
1020
1021                         get_prefix(&dst, *argv, preferred_family);
1022                         if (dst.family == AF_UNSPEC)
1023                                 invarg("\"dst\" address family is AF_UNSPEC", *argv);
1024                         if (family)
1025                                 *family = dst.family;
1026
1027                         memcpy(&id->daddr, &dst.data, sizeof(id->daddr));
1028
1029                         filter.id_dst_mask = dst.bitlen;
1030
1031                 } else if (strcmp(*argv, "proto") == 0) {
1032                         int ret;
1033
1034                         NEXT_ARG();
1035
1036                         ret = xfrm_xfrmproto_getbyname(*argv);
1037                         if (ret < 0)
1038                                 invarg("\"XFRM-PROTO\" is invalid", *argv);
1039
1040                         id->proto = (__u8)ret;
1041
1042                         filter.id_proto_mask = XFRM_FILTER_MASK_FULL;
1043
1044                 } else if (strcmp(*argv, "spi") == 0) {
1045                         __u32 spi;
1046
1047                         NEXT_ARG();
1048                         if (get_u32(&spi, *argv, 0))
1049                                 invarg("\"SPI\" is invalid", *argv);
1050
1051                         spi = htonl(spi);
1052                         id->spi = spi;
1053
1054                         filter.id_spi_mask = XFRM_FILTER_MASK_FULL;
1055
1056                 } else {
1057                         PREV_ARG(); /* back track */
1058                         break;
1059                 }
1060
1061                 if (!NEXT_ARG_OK())
1062                         break;
1063                 NEXT_ARG();
1064         }
1065
1066         if (src.family && dst.family && (src.family != dst.family))
1067                 invarg("the same address family is required between \"src\" and \"dst\"", *argv);
1068
1069         if (loose == 0 && id->proto == 0)
1070                 missarg("XFRM-PROTO");
1071         if (argc == *argcp)
1072                 missarg("ID");
1073
1074         *argcp = argc;
1075         *argvp = argv;
1076
1077         return 0;
1078 }
1079
1080 int xfrm_mode_parse(__u8 *mode, int *argcp, char ***argvp)
1081 {
1082         int argc = *argcp;
1083         char **argv = *argvp;
1084
1085         if (matches(*argv, "transport") == 0)
1086                 *mode = XFRM_MODE_TRANSPORT;
1087         else if (matches(*argv, "tunnel") == 0)
1088                 *mode = XFRM_MODE_TUNNEL;
1089         else if (matches(*argv, "ro") == 0)
1090                 *mode = XFRM_MODE_ROUTEOPTIMIZATION;
1091         else if (matches(*argv, "in_trigger") == 0)
1092                 *mode = XFRM_MODE_IN_TRIGGER;
1093         else if (matches(*argv, "beet") == 0)
1094                 *mode = XFRM_MODE_BEET;
1095         else
1096                 invarg("\"MODE\" is invalid", *argv);
1097
1098         *argcp = argc;
1099         *argvp = argv;
1100
1101         return 0;
1102 }
1103
1104 int xfrm_encap_type_parse(__u16 *type, int *argcp, char ***argvp)
1105 {
1106         int argc = *argcp;
1107         char **argv = *argvp;
1108
1109         if (strcmp(*argv, "espinudp-nonike") == 0)
1110                 *type = 1;
1111         else if (strcmp(*argv, "espinudp") == 0)
1112                 *type = 2;
1113         else
1114                 invarg("\"ENCAP-TYPE\" is invalid", *argv);
1115
1116         *argcp = argc;
1117         *argvp = argv;
1118
1119         return 0;
1120 }
1121
1122 /* NOTE: reqid is used by host-byte order */
1123 int xfrm_reqid_parse(__u32 *reqid, int *argcp, char ***argvp)
1124 {
1125         int argc = *argcp;
1126         char **argv = *argvp;
1127
1128         if (get_u32(reqid, *argv, 0))
1129                 invarg("\"REQID\" is invalid", *argv);
1130
1131         *argcp = argc;
1132         *argvp = argv;
1133
1134         return 0;
1135 }
1136
1137 static int xfrm_selector_upspec_parse(struct xfrm_selector *sel,
1138                                       int *argcp, char ***argvp)
1139 {
1140         int argc = *argcp;
1141         char **argv = *argvp;
1142         char *sportp = NULL;
1143         char *dportp = NULL;
1144         char *typep = NULL;
1145         char *codep = NULL;
1146         char *grekey = NULL;
1147
1148         while (1) {
1149                 if (strcmp(*argv, "proto") == 0) {
1150                         __u8 upspec;
1151
1152                         NEXT_ARG();
1153
1154                         if (strcmp(*argv, "any") == 0)
1155                                 upspec = 0;
1156                         else {
1157                                 struct protoent *pp;
1158                                 pp = getprotobyname(*argv);
1159                                 if (pp)
1160                                         upspec = pp->p_proto;
1161                                 else {
1162                                         if (get_u8(&upspec, *argv, 0))
1163                                                 invarg("\"PROTO\" is invalid", *argv);
1164                                 }
1165                         }
1166                         sel->proto = upspec;
1167
1168                         filter.upspec_proto_mask = XFRM_FILTER_MASK_FULL;
1169
1170                 } else if (strcmp(*argv, "sport") == 0) {
1171                         sportp = *argv;
1172
1173                         NEXT_ARG();
1174
1175                         if (get_u16(&sel->sport, *argv, 0))
1176                                 invarg("\"PORT\" is invalid", *argv);
1177                         sel->sport = htons(sel->sport);
1178                         if (sel->sport)
1179                                 sel->sport_mask = ~((__u16)0);
1180
1181                         filter.upspec_sport_mask = XFRM_FILTER_MASK_FULL;
1182
1183                 } else if (strcmp(*argv, "dport") == 0) {
1184                         dportp = *argv;
1185
1186                         NEXT_ARG();
1187
1188                         if (get_u16(&sel->dport, *argv, 0))
1189                                 invarg("\"PORT\" is invalid", *argv);
1190                         sel->dport = htons(sel->dport);
1191                         if (sel->dport)
1192                                 sel->dport_mask = ~((__u16)0);
1193
1194                         filter.upspec_dport_mask = XFRM_FILTER_MASK_FULL;
1195
1196                 } else if (strcmp(*argv, "type") == 0) {
1197                         typep = *argv;
1198
1199                         NEXT_ARG();
1200
1201                         if (get_u16(&sel->sport, *argv, 0) ||
1202                             (sel->sport & ~((__u16)0xff)))
1203                                 invarg("\"type\" value is invalid", *argv);
1204                         sel->sport = htons(sel->sport);
1205                         sel->sport_mask = ~((__u16)0);
1206
1207                         filter.upspec_sport_mask = XFRM_FILTER_MASK_FULL;
1208
1209
1210                 } else if (strcmp(*argv, "code") == 0) {
1211                         codep = *argv;
1212
1213                         NEXT_ARG();
1214
1215                         if (get_u16(&sel->dport, *argv, 0) ||
1216                             (sel->dport & ~((__u16)0xff)))
1217                                 invarg("\"code\" value is invalid", *argv);
1218                         sel->dport = htons(sel->dport);
1219                         sel->dport_mask = ~((__u16)0);
1220
1221                         filter.upspec_dport_mask = XFRM_FILTER_MASK_FULL;
1222
1223                 } else if (strcmp(*argv, "key") == 0) {
1224                         unsigned uval;
1225
1226                         grekey = *argv;
1227
1228                         NEXT_ARG();
1229
1230                         if (strchr(*argv, '.'))
1231                                 uval = htonl(get_addr32(*argv));
1232                         else {
1233                                 if (get_unsigned(&uval, *argv, 0)<0) {
1234                                         fprintf(stderr, "invalid value for \"key\"; it should be an unsigned integer\n");
1235                                         exit(-1);
1236                                 }
1237                         }
1238
1239                         sel->sport = htons(uval >> 16);
1240                         sel->dport = htons(uval & 0xffff);
1241                         sel->sport_mask = ~((__u16)0);
1242                         sel->dport_mask = ~((__u16)0);
1243
1244                         filter.upspec_dport_mask = XFRM_FILTER_MASK_FULL;
1245
1246                 } else {
1247                         PREV_ARG(); /* back track */
1248                         break;
1249                 }
1250
1251                 if (!NEXT_ARG_OK())
1252                         break;
1253                 NEXT_ARG();
1254         }
1255         if (argc == *argcp)
1256                 missarg("UPSPEC");
1257         if (sportp || dportp) {
1258                 switch (sel->proto) {
1259                 case IPPROTO_TCP:
1260                 case IPPROTO_UDP:
1261                 case IPPROTO_SCTP:
1262                 case IPPROTO_DCCP:
1263                         break;
1264                 default:
1265                         fprintf(stderr, "\"sport\" and \"dport\" are invalid with proto=%s\n", strxf_proto(sel->proto));
1266                         exit(1);
1267                 }
1268         }
1269         if (typep || codep) {
1270                 switch (sel->proto) {
1271                 case IPPROTO_ICMP:
1272                 case IPPROTO_ICMPV6:
1273                 case IPPROTO_MH:
1274                         break;
1275                 default:
1276                         fprintf(stderr, "\"type\" and \"code\" are invalid with proto=%s\n", strxf_proto(sel->proto));
1277                         exit(1);
1278                 }
1279         }
1280         if (grekey) {
1281                 switch (sel->proto) {
1282                 case IPPROTO_GRE:
1283                         break;
1284                 default:
1285                         fprintf(stderr, "\"key\" is invalid with proto=%s\n", strxf_proto(sel->proto));
1286                         exit(1);
1287                 }
1288         }
1289
1290         *argcp = argc;
1291         *argvp = argv;
1292
1293         return 0;
1294 }
1295
1296 int xfrm_selector_parse(struct xfrm_selector *sel, int *argcp, char ***argvp)
1297 {
1298         int argc = *argcp;
1299         char **argv = *argvp;
1300         inet_prefix dst;
1301         inet_prefix src;
1302         char *upspecp = NULL;
1303
1304         memset(&dst, 0, sizeof(dst));
1305         memset(&src, 0, sizeof(src));
1306
1307         while (1) {
1308                 if (strcmp(*argv, "src") == 0) {
1309                         NEXT_ARG();
1310
1311                         get_prefix(&src, *argv, preferred_family);
1312                         if (src.family == AF_UNSPEC)
1313                                 invarg("\"src\" address family is AF_UNSPEC", *argv);
1314                         sel->family = src.family;
1315
1316                         memcpy(&sel->saddr, &src.data, sizeof(sel->saddr));
1317                         sel->prefixlen_s = src.bitlen;
1318
1319                         filter.sel_src_mask = src.bitlen;
1320
1321                 } else if (strcmp(*argv, "dst") == 0) {
1322                         NEXT_ARG();
1323
1324                         get_prefix(&dst, *argv, preferred_family);
1325                         if (dst.family == AF_UNSPEC)
1326                                 invarg("\"dst\" address family is AF_UNSPEC", *argv);
1327                         sel->family = dst.family;
1328
1329                         memcpy(&sel->daddr, &dst.data, sizeof(sel->daddr));
1330                         sel->prefixlen_d = dst.bitlen;
1331
1332                         filter.sel_dst_mask = dst.bitlen;
1333
1334                 } else if (strcmp(*argv, "dev") == 0) {
1335                         int ifindex;
1336
1337                         NEXT_ARG();
1338
1339                         if (strcmp(*argv, "none") == 0)
1340                                 ifindex = 0;
1341                         else {
1342                                 ifindex = ll_name_to_index(*argv);
1343                                 if (ifindex <= 0)
1344                                         invarg("\"DEV\" is invalid", *argv);
1345                         }
1346                         sel->ifindex = ifindex;
1347
1348                         filter.sel_dev_mask = XFRM_FILTER_MASK_FULL;
1349
1350                 } else {
1351                         if (upspecp) {
1352                                 PREV_ARG(); /* back track */
1353                                 break;
1354                         } else {
1355                                 upspecp = *argv;
1356                                 xfrm_selector_upspec_parse(sel, &argc, &argv);
1357                         }
1358                 }
1359
1360                 if (!NEXT_ARG_OK())
1361                         break;
1362
1363                 NEXT_ARG();
1364         }
1365
1366         if (src.family && dst.family && (src.family != dst.family))
1367                 invarg("the same address family is required between \"src\" and \"dst\"", *argv);
1368
1369         if (argc == *argcp)
1370                 missarg("SELECTOR");
1371
1372         *argcp = argc;
1373         *argvp = argv;
1374
1375         return 0;
1376 }
1377
1378 int xfrm_lifetime_cfg_parse(struct xfrm_lifetime_cfg *lft,
1379                             int *argcp, char ***argvp)
1380 {
1381         int argc = *argcp;
1382         char **argv = *argvp;
1383         int ret;
1384
1385         if (strcmp(*argv, "time-soft") == 0) {
1386                 NEXT_ARG();
1387                 ret = get_u64(&lft->soft_add_expires_seconds, *argv, 0);
1388                 if (ret)
1389                         invarg("\"time-soft\" value is invalid", *argv);
1390         } else if (strcmp(*argv, "time-hard") == 0) {
1391                 NEXT_ARG();
1392                 ret = get_u64(&lft->hard_add_expires_seconds, *argv, 0);
1393                 if (ret)
1394                         invarg("\"time-hard\" value is invalid", *argv);
1395         } else if (strcmp(*argv, "time-use-soft") == 0) {
1396                 NEXT_ARG();
1397                 ret = get_u64(&lft->soft_use_expires_seconds, *argv, 0);
1398                 if (ret)
1399                         invarg("\"time-use-soft\" value is invalid", *argv);
1400         } else if (strcmp(*argv, "time-use-hard") == 0) {
1401                 NEXT_ARG();
1402                 ret = get_u64(&lft->hard_use_expires_seconds, *argv, 0);
1403                 if (ret)
1404                         invarg("\"time-use-hard\" value is invalid", *argv);
1405         } else if (strcmp(*argv, "byte-soft") == 0) {
1406                 NEXT_ARG();
1407                 ret = get_u64(&lft->soft_byte_limit, *argv, 0);
1408                 if (ret)
1409                         invarg("\"byte-soft\" value is invalid", *argv);
1410         } else if (strcmp(*argv, "byte-hard") == 0) {
1411                 NEXT_ARG();
1412                 ret = get_u64(&lft->hard_byte_limit, *argv, 0);
1413                 if (ret)
1414                         invarg("\"byte-hard\" value is invalid", *argv);
1415         } else if (strcmp(*argv, "packet-soft") == 0) {
1416                 NEXT_ARG();
1417                 ret = get_u64(&lft->soft_packet_limit, *argv, 0);
1418                 if (ret)
1419                         invarg("\"packet-soft\" value is invalid", *argv);
1420         } else if (strcmp(*argv, "packet-hard") == 0) {
1421                 NEXT_ARG();
1422                 ret = get_u64(&lft->hard_packet_limit, *argv, 0);
1423                 if (ret)
1424                         invarg("\"packet-hard\" value is invalid", *argv);
1425         } else
1426                 invarg("\"LIMIT\" is invalid", *argv);
1427
1428         *argcp = argc;
1429         *argvp = argv;
1430
1431         return 0;
1432 }
1433
1434 int do_xfrm(int argc, char **argv)
1435 {
1436         memset(&filter, 0, sizeof(filter));
1437
1438         if (argc < 1)
1439                 usage();
1440
1441         if (matches(*argv, "state") == 0 ||
1442             matches(*argv, "sa") == 0)
1443                 return do_xfrm_state(argc-1, argv+1);
1444         else if (matches(*argv, "policy") == 0)
1445                 return do_xfrm_policy(argc-1, argv+1);
1446         else if (matches(*argv, "monitor") == 0)
1447                 return do_xfrm_monitor(argc-1, argv+1);
1448         else if (matches(*argv, "help") == 0) {
1449                 usage();
1450                 fprintf(stderr, "xfrm Object \"%s\" is unknown.\n", *argv);
1451                 exit(-1);
1452         }
1453         usage();
1454 }