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, see <http://www.gnu.org/licenses>.
  18  */
  19 /*
  20  * based on ip.c, iproute.c
  21  */
  22 /*
  23  * Authors:
  24  *      Masahide NAKAMURA @USAGI
  25  */
  26
  27 #include <alloca.h>
  28 #include <stdio.h>
  29 #include <stdlib.h>
  30 #include <string.h>
  31 #include <sys/types.h>
  32 #include <sys/socket.h>
  33 #include <time.h>
  34 #include <netdb.h>
  35 #include <linux/netlink.h>
  36 #include <linux/rtnetlink.h>
  37 #include <linux/xfrm.h>
  38
  39 #include "utils.h"
  40 #include "xfrm.h"
  41 #include "ip_common.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,
 292                                            saddr, abuf, sizeof(abuf)));
 293         memset(abuf, '\0', sizeof(abuf));
 294         fprintf(fp, "dst %s", rt_addr_n2a(family,
 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, &sel->saddr, abuf, sizeof(abuf)),
 459                 sel->prefixlen_s);
 460
 461         memset(abuf, '\0', sizeof(abuf));
 462         fprintf(fp, "dst %s/%u ", rt_addr_n2a(f, &sel->daddr, abuf, sizeof(abuf)),
 463                 sel->prefixlen_d);
 464
 465         if (sel->proto)
 466                 fprintf(fp, "proto %s ", strxf_proto(sel->proto));
 467         switch (sel->proto) {
 468         case IPPROTO_TCP:
 469         case IPPROTO_UDP:
 470         case IPPROTO_SCTP:
 471         case IPPROTO_DCCP:
 472         default: /* XXX */
 473                 if (sel->sport_mask)
 474                         fprintf(fp, "sport %u ", ntohs(sel->sport));
 475                 if (sel->dport_mask)
 476                         fprintf(fp, "dport %u ", ntohs(sel->dport));
 477                 break;
 478         case IPPROTO_ICMP:
 479         case IPPROTO_ICMPV6:
 480                 /* type/code is stored at sport/dport in selector */
 481                 if (sel->sport_mask)
 482                         fprintf(fp, "type %u ", ntohs(sel->sport));
 483                 if (sel->dport_mask)
 484                         fprintf(fp, "code %u ", ntohs(sel->dport));
 485                 break;
 486         case IPPROTO_GRE:
 487                 if (sel->sport_mask || sel->dport_mask)
 488                         fprintf(fp, "key %u ",
 489                                 (((__u32)ntohs(sel->sport)) << 16) +
 490                                 ntohs(sel->dport));
 491                 break;
 492         case IPPROTO_MH:
 493                 if (sel->sport_mask)
 494                         fprintf(fp, "type %u ", ntohs(sel->sport));
 495                 if (sel->dport_mask) {
 496                         if (show_stats > 0)
 497                                 fprintf(fp, "(dport) 0x%.4x ", sel->dport);
 498                 }
 499                 break;
 500         }
 501
 502         if (sel->ifindex > 0)
 503                 fprintf(fp, "dev %s ", ll_index_to_name(sel->ifindex));
 504
 505         if (show_stats > 0)
 506                 fprintf(fp, "uid %u", sel->user);
 507
 508         fprintf(fp, "%s", _SL_);
 509 }
 510
 511 static void __xfrm_algo_print(struct xfrm_algo *algo, int type, int len,
 512                               FILE *fp, const char *prefix, int newline)
 513 {
 514         int keylen;
 515         int i;
 516
 517         if (prefix)
 518                 fputs(prefix, fp);
 519
 520         fprintf(fp, "%s ", strxf_algotype(type));
 521
 522         if (len < sizeof(*algo)) {
 523                 fprintf(fp, "(ERROR truncated)");
 524                 goto fin;
 525         }
 526         len -= sizeof(*algo);
 527
 528         fprintf(fp, "%s ", algo->alg_name);
 529
 530         keylen = algo->alg_key_len / 8;
 531         if (len < keylen) {
 532                 fprintf(fp, "(ERROR truncated)");
 533                 goto fin;
 534         }
 535
 536         if (keylen > 0) {
 537                 fprintf(fp, "0x");
 538                 for (i = 0; i < keylen; i ++)
 539                         fprintf(fp, "%.2x", (unsigned char)algo->alg_key[i]);
 540
 541                 if (show_stats > 0)
 542                         fprintf(fp, " (%d bits)", algo->alg_key_len);
 543         }
 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                             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("MARK value is invalid\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("MASK value is invalid\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, &e->encap_oa, abuf, sizeof(abuf)));
 758                 fprintf(fp, "%s", _SL_);
 759         }
 760
 761         if (tb[XFRMA_TMPL]) {
 762                 struct rtattr *rta = tb[XFRMA_TMPL];
 763                 xfrm_tmpl_print((struct xfrm_user_tmpl *) RTA_DATA(rta),
 764                                 RTA_PAYLOAD(rta), fp, prefix);
 765         }
 766
 767         if (tb[XFRMA_COADDR]) {
 768                 char abuf[256];
 769                 xfrm_address_t *coa;
 770
 771                 if (prefix)
 772                         fputs(prefix, fp);
 773                 fprintf(fp, "coa ");
 774
 775                 coa = (xfrm_address_t *)RTA_DATA(tb[XFRMA_COADDR]);
 776
 777                 if (RTA_PAYLOAD(tb[XFRMA_COADDR]) < sizeof(*coa)) {
 778                         fprintf(fp, "(ERROR truncated)");
 779                         fprintf(fp, "%s", _SL_);
 780                         return;
 781                 }
 782
 783                 memset(abuf, '\0', sizeof(abuf));
 784                 fprintf(fp, "%s",
 785                         rt_addr_n2a(family, coa,
 786                                     abuf, sizeof(abuf)));
 787                 fprintf(fp, "%s", _SL_);
 788         }
 789
 790         if (tb[XFRMA_LASTUSED]) {
 791                 __u64 lastused;
 792
 793                 if (prefix)
 794                         fputs(prefix, fp);
 795                 fprintf(fp, "lastused ");
 796
 797                 if (RTA_PAYLOAD(tb[XFRMA_LASTUSED]) < sizeof(lastused)) {
 798                         fprintf(fp, "(ERROR truncated)");
 799                         fprintf(fp, "%s", _SL_);
 800                         return;
 801                 }
 802
 803                 lastused = rta_getattr_u64(tb[XFRMA_LASTUSED]);
 804
 805                 fprintf(fp, "%s", strxf_time(lastused));
 806                 fprintf(fp, "%s", _SL_);
 807         }
 808
 809 }
 810
 811 static int xfrm_selector_iszero(struct xfrm_selector *s)
 812 {
 813         struct xfrm_selector s0;
 814
 815         memset(&s0, 0, sizeof(s0));
 816
 817         return (memcmp(&s0, s, sizeof(s0)) == 0);
 818 }
 819
 820 void xfrm_state_info_print(struct xfrm_usersa_info *xsinfo,
 821                             struct rtattr *tb[], FILE *fp, const char *prefix,
 822                             const char *title)
 823 {
 824         char buf[STRBUF_SIZE];
 825         int force_spi = xfrm_xfrmproto_is_ipsec(xsinfo->id.proto);
 826
 827         memset(buf, '\0', sizeof(buf));
 828
 829         xfrm_id_info_print(&xsinfo->saddr, &xsinfo->id, xsinfo->mode,
 830                            xsinfo->reqid, xsinfo->family, force_spi, fp,
 831                            prefix, title);
 832
 833         if (prefix)
 834                 STRBUF_CAT(buf, prefix);
 835         STRBUF_CAT(buf, "\t");
 836
 837         fputs(buf, fp);
 838         fprintf(fp, "replay-window %u ", xsinfo->replay_window);
 839         if (show_stats > 0)
 840                 fprintf(fp, "seq 0x%08u ", xsinfo->seq);
 841         if (show_stats > 0 || xsinfo->flags) {
 842                 __u8 flags = xsinfo->flags;
 843
 844                 fprintf(fp, "flag ");
 845                 XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_NOECN, "noecn");
 846                 XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_DECAP_DSCP, "decap-dscp");
 847                 XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_NOPMTUDISC, "nopmtudisc");
 848                 XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_WILDRECV, "wildrecv");
 849                 XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_ICMP, "icmp");
 850                 XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_AF_UNSPEC, "af-unspec");
 851                 XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_ALIGN4, "align4");
 852                 if (flags)
 853                         fprintf(fp, "%x", flags);
 854         }
 855         if (show_stats > 0 && tb[XFRMA_SA_EXTRA_FLAGS]) {
 856                 __u32 extra_flags = *(__u32 *)RTA_DATA(tb[XFRMA_SA_EXTRA_FLAGS]);
 857
 858                 fprintf(fp, "extra_flag ");
 859                 XFRM_FLAG_PRINT(fp, extra_flags,
 860                                 XFRM_SA_XFLAG_DONT_ENCAP_DSCP,
 861                                 "dont-encap-dscp");
 862                 if (extra_flags)
 863                         fprintf(fp, "%x", extra_flags);
 864         }
 865         if (show_stats > 0)
 866                 fprintf(fp, " (0x%s)", strxf_mask8(xsinfo->flags));
 867         fprintf(fp, "%s", _SL_);
 868
 869         xfrm_xfrma_print(tb, xsinfo->family, fp, buf);
 870
 871         if (!xfrm_selector_iszero(&xsinfo->sel)) {
 872                 char sbuf[STRBUF_SIZE];
 873
 874                 memcpy(sbuf, buf, sizeof(sbuf));
 875                 STRBUF_CAT(sbuf, "sel ");
 876
 877                 xfrm_selector_print(&xsinfo->sel, xsinfo->family, fp, sbuf);
 878         }
 879
 880         if (show_stats > 0) {
 881                 xfrm_lifetime_print(&xsinfo->lft, &xsinfo->curlft, fp, buf);
 882                 xfrm_stats_print(&xsinfo->stats, fp, buf);
 883         }
 884
 885         if (tb[XFRMA_SEC_CTX]) {
 886                 struct xfrm_user_sec_ctx *sctx;
 887
 888                 fprintf(fp, "\tsecurity context ");
 889
 890                 if (RTA_PAYLOAD(tb[XFRMA_SEC_CTX]) < sizeof(*sctx))
 891                         fprintf(fp, "(ERROR truncated)");
 892
 893                 sctx = (struct xfrm_user_sec_ctx *)RTA_DATA(tb[XFRMA_SEC_CTX]);
 894
 895                 fprintf(fp, "%s %s", (char *)(sctx + 1), _SL_);
 896         }
 897
 898 }
 899
 900 void xfrm_policy_info_print(struct xfrm_userpolicy_info *xpinfo,
 901                             struct rtattr *tb[], FILE *fp, const char *prefix,
 902                             const char *title)
 903 {
 904         char buf[STRBUF_SIZE];
 905
 906         memset(buf, '\0', sizeof(buf));
 907
 908         xfrm_selector_print(&xpinfo->sel, preferred_family, fp, title);
 909
 910         if (tb[XFRMA_SEC_CTX]) {
 911                 struct xfrm_user_sec_ctx *sctx;
 912
 913                 fprintf(fp, "\tsecurity context ");
 914
 915                 if (RTA_PAYLOAD(tb[XFRMA_SEC_CTX]) < sizeof(*sctx))
 916                         fprintf(fp, "(ERROR truncated)");
 917
 918                 sctx = (struct xfrm_user_sec_ctx *)RTA_DATA(tb[XFRMA_SEC_CTX]);
 919
 920                 fprintf(fp, "%s ", (char *)(sctx + 1));
 921                 fprintf(fp, "%s", _SL_);
 922         }
 923
 924         if (prefix)
 925                 STRBUF_CAT(buf, prefix);
 926         STRBUF_CAT(buf, "\t");
 927
 928         fputs(buf, fp);
 929         if (xpinfo->dir >= XFRM_POLICY_MAX) {
 930                 xpinfo->dir -= XFRM_POLICY_MAX;
 931                 fprintf(fp, "socket ");
 932         } else
 933                 fprintf(fp, "dir ");
 934
 935         switch (xpinfo->dir) {
 936         case XFRM_POLICY_IN:
 937                 fprintf(fp, "in");
 938                 break;
 939         case XFRM_POLICY_OUT:
 940                 fprintf(fp, "out");
 941                 break;
 942         case XFRM_POLICY_FWD:
 943                 fprintf(fp, "fwd");
 944                 break;
 945         default:
 946                 fprintf(fp, "%u", xpinfo->dir);
 947                 break;
 948         }
 949         fprintf(fp, " ");
 950
 951         switch (xpinfo->action) {
 952         case XFRM_POLICY_ALLOW:
 953                 if (show_stats > 0)
 954                         fprintf(fp, "action allow ");
 955                 break;
 956         case XFRM_POLICY_BLOCK:
 957                 fprintf(fp, "action block ");
 958                 break;
 959         default:
 960                 fprintf(fp, "action %u ", xpinfo->action);
 961                 break;
 962         }
 963
 964         if (show_stats)
 965                 fprintf(fp, "index %u ", xpinfo->index);
 966         fprintf(fp, "priority %u ", xpinfo->priority);
 967
 968         if (tb[XFRMA_POLICY_TYPE]) {
 969                 struct xfrm_userpolicy_type *upt;
 970
 971                 fprintf(fp, "ptype ");
 972
 973                 if (RTA_PAYLOAD(tb[XFRMA_POLICY_TYPE]) < sizeof(*upt))
 974                         fprintf(fp, "(ERROR truncated)");
 975
 976                 upt = (struct xfrm_userpolicy_type *)RTA_DATA(tb[XFRMA_POLICY_TYPE]);
 977                 fprintf(fp, "%s ", strxf_ptype(upt->type));
 978         }
 979
 980         if (show_stats > 0)
 981                 fprintf(fp, "share %s ", strxf_share(xpinfo->share));
 982
 983         if (show_stats > 0 || xpinfo->flags) {
 984                 __u8 flags = xpinfo->flags;
 985
 986                 fprintf(fp, "flag ");
 987                 XFRM_FLAG_PRINT(fp, flags, XFRM_POLICY_LOCALOK, "localok");
 988                 XFRM_FLAG_PRINT(fp, flags, XFRM_POLICY_ICMP, "icmp");
 989                 if (flags)
 990                         fprintf(fp, "%x", flags);
 991         }
 992         if (show_stats > 0)
 993                 fprintf(fp, " (0x%s)", strxf_mask8(xpinfo->flags));
 994         fprintf(fp, "%s", _SL_);
 995
 996         if (show_stats > 0)
 997                 xfrm_lifetime_print(&xpinfo->lft, &xpinfo->curlft, fp, buf);
 998
 999         xfrm_xfrma_print(tb, xpinfo->sel.family, fp, buf);
1000 }
1001
1002 int xfrm_id_parse(xfrm_address_t *saddr, struct xfrm_id *id, __u16 *family,
1003                   int loose, int *argcp, char ***argvp)
1004 {
1005         int argc = *argcp;
1006         char **argv = *argvp;
1007         inet_prefix dst;
1008         inet_prefix src;
1009
1010         memset(&dst, 0, sizeof(dst));
1011         memset(&src, 0, sizeof(src));
1012
1013         while (1) {
1014                 if (strcmp(*argv, "src") == 0) {
1015                         NEXT_ARG();
1016
1017                         get_prefix(&src, *argv, preferred_family);
1018                         if (src.family == AF_UNSPEC)
1019                                 invarg("value after \"src\" has an unrecognized address family", *argv);
1020                         if (family)
1021                                 *family = src.family;
1022
1023                         memcpy(saddr, &src.data, sizeof(*saddr));
1024
1025                         filter.id_src_mask = src.bitlen;
1026
1027                 } else if (strcmp(*argv, "dst") == 0) {
1028                         NEXT_ARG();
1029
1030                         get_prefix(&dst, *argv, preferred_family);
1031                         if (dst.family == AF_UNSPEC)
1032                                 invarg("value after \"dst\" has an unrecognized address family", *argv);
1033                         if (family)
1034                                 *family = dst.family;
1035
1036                         memcpy(&id->daddr, &dst.data, sizeof(id->daddr));
1037
1038                         filter.id_dst_mask = dst.bitlen;
1039
1040                 } else if (strcmp(*argv, "proto") == 0) {
1041                         int ret;
1042
1043                         NEXT_ARG();
1044
1045                         ret = xfrm_xfrmproto_getbyname(*argv);
1046                         if (ret < 0)
1047                                 invarg("XFRM-PROTO value is invalid", *argv);
1048
1049                         id->proto = (__u8)ret;
1050
1051                         filter.id_proto_mask = XFRM_FILTER_MASK_FULL;
1052
1053                 } else if (strcmp(*argv, "spi") == 0) {
1054                         __u32 spi;
1055
1056                         NEXT_ARG();
1057                         if (get_u32(&spi, *argv, 0))
1058                                 invarg("SPI value is invalid", *argv);
1059
1060                         spi = htonl(spi);
1061                         id->spi = spi;
1062
1063                         filter.id_spi_mask = XFRM_FILTER_MASK_FULL;
1064
1065                 } else {
1066                         PREV_ARG(); /* back track */
1067                         break;
1068                 }
1069
1070                 if (!NEXT_ARG_OK())
1071                         break;
1072                 NEXT_ARG();
1073         }
1074
1075         if (src.family && dst.family && (src.family != dst.family))
1076                 invarg("the same address family is required between values after \"src\" and \"dst\"", *argv);
1077
1078         if (id->spi && id->proto) {
1079                 if (xfrm_xfrmproto_is_ro(id->proto)) {
1080                         fprintf(stderr, "\"spi\" is invalid with XFRM-PROTO value \"%s\"\n",
1081                                 strxf_xfrmproto(id->proto));
1082                         exit(1);
1083                 } else if (id->proto == IPPROTO_COMP && ntohl(id->spi) >= 0x10000) {
1084                         fprintf(stderr, "SPI value is too large with XFRM-PROTO value \"%s\"\n",
1085                                 strxf_xfrmproto(id->proto));
1086                         exit(1);
1087                 }
1088         }
1089
1090         if (loose == 0 && id->proto == 0)
1091                 missarg("XFRM-PROTO");
1092         if (argc == *argcp)
1093                 missarg("ID");
1094
1095         *argcp = argc;
1096         *argvp = argv;
1097
1098         return 0;
1099 }
1100
1101 int xfrm_mode_parse(__u8 *mode, int *argcp, char ***argvp)
1102 {
1103         int argc = *argcp;
1104         char **argv = *argvp;
1105
1106         if (matches(*argv, "transport") == 0)
1107                 *mode = XFRM_MODE_TRANSPORT;
1108         else if (matches(*argv, "tunnel") == 0)
1109                 *mode = XFRM_MODE_TUNNEL;
1110         else if (matches(*argv, "ro") == 0)
1111                 *mode = XFRM_MODE_ROUTEOPTIMIZATION;
1112         else if (matches(*argv, "in_trigger") == 0)
1113                 *mode = XFRM_MODE_IN_TRIGGER;
1114         else if (matches(*argv, "beet") == 0)
1115                 *mode = XFRM_MODE_BEET;
1116         else
1117                 invarg("MODE value is invalid", *argv);
1118
1119         *argcp = argc;
1120         *argvp = argv;
1121
1122         return 0;
1123 }
1124
1125 int xfrm_encap_type_parse(__u16 *type, int *argcp, char ***argvp)
1126 {
1127         int argc = *argcp;
1128         char **argv = *argvp;
1129
1130         if (strcmp(*argv, "espinudp-nonike") == 0)
1131                 *type = 1;
1132         else if (strcmp(*argv, "espinudp") == 0)
1133                 *type = 2;
1134         else
1135                 invarg("ENCAP-TYPE value is invalid", *argv);
1136
1137         *argcp = argc;
1138         *argvp = argv;
1139
1140         return 0;
1141 }
1142
1143 /* NOTE: reqid is used by host-byte order */
1144 int xfrm_reqid_parse(__u32 *reqid, int *argcp, char ***argvp)
1145 {
1146         int argc = *argcp;
1147         char **argv = *argvp;
1148
1149         if (get_u32(reqid, *argv, 0))
1150                 invarg("REQID value is invalid", *argv);
1151
1152         *argcp = argc;
1153         *argvp = argv;
1154
1155         return 0;
1156 }
1157
1158 static int xfrm_selector_upspec_parse(struct xfrm_selector *sel,
1159                                       int *argcp, char ***argvp)
1160 {
1161         int argc = *argcp;
1162         char **argv = *argvp;
1163         char *sportp = NULL;
1164         char *dportp = NULL;
1165         char *typep = NULL;
1166         char *codep = NULL;
1167         char *grekey = NULL;
1168
1169         while (1) {
1170                 if (strcmp(*argv, "proto") == 0) {
1171                         __u8 upspec;
1172
1173                         NEXT_ARG();
1174
1175                         if (strcmp(*argv, "any") == 0)
1176                                 upspec = 0;
1177                         else {
1178                                 struct protoent *pp;
1179                                 pp = getprotobyname(*argv);
1180                                 if (pp)
1181                                         upspec = pp->p_proto;
1182                                 else {
1183                                         if (get_u8(&upspec, *argv, 0))
1184                                                 invarg("PROTO value is invalid", *argv);
1185                                 }
1186                         }
1187                         sel->proto = upspec;
1188
1189                         filter.upspec_proto_mask = XFRM_FILTER_MASK_FULL;
1190
1191                 } else if (strcmp(*argv, "sport") == 0) {
1192                         sportp = *argv;
1193
1194                         NEXT_ARG();
1195
1196                         if (get_u16(&sel->sport, *argv, 0))
1197                                 invarg("value after \"sport\" is invalid", *argv);
1198                         sel->sport = htons(sel->sport);
1199                         if (sel->sport)
1200                                 sel->sport_mask = ~((__u16)0);
1201
1202                         filter.upspec_sport_mask = XFRM_FILTER_MASK_FULL;
1203
1204                 } else if (strcmp(*argv, "dport") == 0) {
1205                         dportp = *argv;
1206
1207                         NEXT_ARG();
1208
1209                         if (get_u16(&sel->dport, *argv, 0))
1210                                 invarg("value after \"dport\" is invalid", *argv);
1211                         sel->dport = htons(sel->dport);
1212                         if (sel->dport)
1213                                 sel->dport_mask = ~((__u16)0);
1214
1215                         filter.upspec_dport_mask = XFRM_FILTER_MASK_FULL;
1216
1217                 } else if (strcmp(*argv, "type") == 0) {
1218                         typep = *argv;
1219
1220                         NEXT_ARG();
1221
1222                         if (get_u16(&sel->sport, *argv, 0) ||
1223                             (sel->sport & ~((__u16)0xff)))
1224                                 invarg("value after \"type\" is invalid", *argv);
1225                         sel->sport = htons(sel->sport);
1226                         sel->sport_mask = ~((__u16)0);
1227
1228                         filter.upspec_sport_mask = XFRM_FILTER_MASK_FULL;
1229
1230
1231                 } else if (strcmp(*argv, "code") == 0) {
1232                         codep = *argv;
1233
1234                         NEXT_ARG();
1235
1236                         if (get_u16(&sel->dport, *argv, 0) ||
1237                             (sel->dport & ~((__u16)0xff)))
1238                                 invarg("value after \"code\" is invalid", *argv);
1239                         sel->dport = htons(sel->dport);
1240                         sel->dport_mask = ~((__u16)0);
1241
1242                         filter.upspec_dport_mask = XFRM_FILTER_MASK_FULL;
1243
1244                 } else if (strcmp(*argv, "key") == 0) {
1245                         unsigned uval;
1246
1247                         grekey = *argv;
1248
1249                         NEXT_ARG();
1250
1251                         if (strchr(*argv, '.'))
1252                                 uval = htonl(get_addr32(*argv));
1253                         else {
1254                                 if (get_unsigned(&uval, *argv, 0)<0) {
1255                                         fprintf(stderr, "value after \"key\" is invalid\n");
1256                                         exit(-1);
1257                                 }
1258                         }
1259
1260                         sel->sport = htons(uval >> 16);
1261                         sel->dport = htons(uval & 0xffff);
1262                         sel->sport_mask = ~((__u16)0);
1263                         sel->dport_mask = ~((__u16)0);
1264
1265                         filter.upspec_dport_mask = XFRM_FILTER_MASK_FULL;
1266
1267                 } else {
1268                         PREV_ARG(); /* back track */
1269                         break;
1270                 }
1271
1272                 if (!NEXT_ARG_OK())
1273                         break;
1274                 NEXT_ARG();
1275         }
1276         if (argc == *argcp)
1277                 missarg("UPSPEC");
1278         if (sportp || dportp) {
1279                 switch (sel->proto) {
1280                 case IPPROTO_TCP:
1281                 case IPPROTO_UDP:
1282                 case IPPROTO_SCTP:
1283                 case IPPROTO_DCCP:
1284                         break;
1285                 default:
1286                         fprintf(stderr, "\"sport\" and \"dport\" are invalid with PROTO value \"%s\"\n", strxf_proto(sel->proto));
1287                         exit(1);
1288                 }
1289         }
1290         if (typep || codep) {
1291                 switch (sel->proto) {
1292                 case IPPROTO_ICMP:
1293                 case IPPROTO_ICMPV6:
1294                 case IPPROTO_MH:
1295                         break;
1296                 default:
1297                         fprintf(stderr, "\"type\" and \"code\" are invalid with PROTO value \"%s\"\n", strxf_proto(sel->proto));
1298                         exit(1);
1299                 }
1300         }
1301         if (grekey) {
1302                 switch (sel->proto) {
1303                 case IPPROTO_GRE:
1304                         break;
1305                 default:
1306                         fprintf(stderr, "\"key\" is invalid with PROTO value \"%s\"\n", strxf_proto(sel->proto));
1307                         exit(1);
1308                 }
1309         }
1310
1311         *argcp = argc;
1312         *argvp = argv;
1313
1314         return 0;
1315 }
1316
1317 int xfrm_selector_parse(struct xfrm_selector *sel, int *argcp, char ***argvp)
1318 {
1319         int argc = *argcp;
1320         char **argv = *argvp;
1321         inet_prefix dst;
1322         inet_prefix src;
1323         char *upspecp = NULL;
1324
1325         memset(&dst, 0, sizeof(dst));
1326         memset(&src, 0, sizeof(src));
1327
1328         while (1) {
1329                 if (strcmp(*argv, "src") == 0) {
1330                         NEXT_ARG();
1331
1332                         get_prefix(&src, *argv, preferred_family);
1333                         if (src.family == AF_UNSPEC)
1334                                 invarg("value after \"src\" has an unrecognized address family", *argv);
1335                         sel->family = src.family;
1336
1337                         memcpy(&sel->saddr, &src.data, sizeof(sel->saddr));
1338                         sel->prefixlen_s = src.bitlen;
1339
1340                         filter.sel_src_mask = src.bitlen;
1341
1342                 } else if (strcmp(*argv, "dst") == 0) {
1343                         NEXT_ARG();
1344
1345                         get_prefix(&dst, *argv, preferred_family);
1346                         if (dst.family == AF_UNSPEC)
1347                                 invarg("value after \"dst\" has an unrecognized address family", *argv);
1348                         sel->family = dst.family;
1349
1350                         memcpy(&sel->daddr, &dst.data, sizeof(sel->daddr));
1351                         sel->prefixlen_d = dst.bitlen;
1352
1353                         filter.sel_dst_mask = dst.bitlen;
1354
1355                 } else if (strcmp(*argv, "dev") == 0) {
1356                         int ifindex;
1357
1358                         NEXT_ARG();
1359
1360                         if (strcmp(*argv, "none") == 0)
1361                                 ifindex = 0;
1362                         else {
1363                                 ifindex = ll_name_to_index(*argv);
1364                                 if (ifindex <= 0)
1365                                         invarg("DEV value is invalid", *argv);
1366                         }
1367                         sel->ifindex = ifindex;
1368
1369                         filter.sel_dev_mask = XFRM_FILTER_MASK_FULL;
1370
1371                 } else {
1372                         if (upspecp) {
1373                                 PREV_ARG(); /* back track */
1374                                 break;
1375                         } else {
1376                                 upspecp = *argv;
1377                                 xfrm_selector_upspec_parse(sel, &argc, &argv);
1378                         }
1379                 }
1380
1381                 if (!NEXT_ARG_OK())
1382                         break;
1383
1384                 NEXT_ARG();
1385         }
1386
1387         if (src.family && dst.family && (src.family != dst.family))
1388                 invarg("the same address family is required between values after \"src\" and \"dst\"", *argv);
1389
1390         if (argc == *argcp)
1391                 missarg("SELECTOR");
1392
1393         *argcp = argc;
1394         *argvp = argv;
1395
1396         return 0;
1397 }
1398
1399 int xfrm_lifetime_cfg_parse(struct xfrm_lifetime_cfg *lft,
1400                             int *argcp, char ***argvp)
1401 {
1402         int argc = *argcp;
1403         char **argv = *argvp;
1404         int ret;
1405
1406         if (strcmp(*argv, "time-soft") == 0) {
1407                 NEXT_ARG();
1408                 ret = get_u64(&lft->soft_add_expires_seconds, *argv, 0);
1409                 if (ret)
1410                         invarg("value after \"time-soft\" is invalid", *argv);
1411         } else if (strcmp(*argv, "time-hard") == 0) {
1412                 NEXT_ARG();
1413                 ret = get_u64(&lft->hard_add_expires_seconds, *argv, 0);
1414                 if (ret)
1415                         invarg("value after \"time-hard\" is invalid", *argv);
1416         } else if (strcmp(*argv, "time-use-soft") == 0) {
1417                 NEXT_ARG();
1418                 ret = get_u64(&lft->soft_use_expires_seconds, *argv, 0);
1419                 if (ret)
1420                         invarg("value after \"time-use-soft\" is invalid", *argv);
1421         } else if (strcmp(*argv, "time-use-hard") == 0) {
1422                 NEXT_ARG();
1423                 ret = get_u64(&lft->hard_use_expires_seconds, *argv, 0);
1424                 if (ret)
1425                         invarg("value after \"time-use-hard\" is invalid", *argv);
1426         } else if (strcmp(*argv, "byte-soft") == 0) {
1427                 NEXT_ARG();
1428                 ret = get_u64(&lft->soft_byte_limit, *argv, 0);
1429                 if (ret)
1430                         invarg("value after \"byte-soft\" is invalid", *argv);
1431         } else if (strcmp(*argv, "byte-hard") == 0) {
1432                 NEXT_ARG();
1433                 ret = get_u64(&lft->hard_byte_limit, *argv, 0);
1434                 if (ret)
1435                         invarg("value after \"byte-hard\" is invalid", *argv);
1436         } else if (strcmp(*argv, "packet-soft") == 0) {
1437                 NEXT_ARG();
1438                 ret = get_u64(&lft->soft_packet_limit, *argv, 0);
1439                 if (ret)
1440                         invarg("value after \"packet-soft\" is invalid", *argv);
1441         } else if (strcmp(*argv, "packet-hard") == 0) {
1442                 NEXT_ARG();
1443                 ret = get_u64(&lft->hard_packet_limit, *argv, 0);
1444                 if (ret)
1445                         invarg("value after \"packet-hard\" is invalid", *argv);
1446         } else
1447                 invarg("LIMIT value is invalid", *argv);
1448
1449         *argcp = argc;
1450         *argvp = argv;
1451
1452         return 0;
1453 }
1454
1455 int do_xfrm(int argc, char **argv)
1456 {
1457         memset(&filter, 0, sizeof(filter));
1458
1459         if (argc < 1)
1460                 usage();
1461
1462         if (matches(*argv, "state") == 0 ||
1463             matches(*argv, "sa") == 0)
1464                 return do_xfrm_state(argc-1, argv+1);
1465         else if (matches(*argv, "policy") == 0)
1466                 return do_xfrm_policy(argc-1, argv+1);
1467         else if (matches(*argv, "monitor") == 0)
1468                 return do_xfrm_monitor(argc-1, argv+1);
1469         else if (matches(*argv, "help") == 0) {
1470                 usage();
1471                 fprintf(stderr, "xfrm Object \"%s\" is unknown.\n", *argv);
1472                 exit(-1);
1473         }
1474         usage();
1475 }