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 #include "ip_common.h"
  43
  44 #define STRBUF_SIZE     (128)
  45 #define STRBUF_CAT(buf, str) \
  46         do { \
  47                 int rest = sizeof(buf) - 1 - strlen(buf); \
  48                 if (rest > 0) { \
  49                         int len = strlen(str); \
  50                         if (len > rest) \
  51                                 len = rest; \
  52                         strncat(buf, str, len); \
  53                         buf[sizeof(buf) - 1] = '\0'; \
  54                 } \
  55         } while(0);
  56
  57 struct xfrm_filter filter;
  58
  59 static void usage(void) __attribute__((noreturn));
  60
  61 static void usage(void)
  62 {
  63         fprintf(stderr,
  64                 "Usage: ip xfrm XFRM-OBJECT { COMMAND | help }\n"
  65                 "where  XFRM-OBJECT := state | policy | monitor\n");
  66         exit(-1);
  67 }
  68
  69 /* This is based on utils.c(inet_addr_match) */
  70 int xfrm_addr_match(xfrm_address_t *x1, xfrm_address_t *x2, int bits)
  71 {
  72         __u32 *a1 = (__u32 *)x1;
  73         __u32 *a2 = (__u32 *)x2;
  74         int words = bits >> 0x05;
  75
  76         bits &= 0x1f;
  77
  78         if (words)
  79                 if (memcmp(a1, a2, words << 2))
  80                         return -1;
  81
  82         if (bits) {
  83                 __u32 w1, w2;
  84                 __u32 mask;
  85
  86                 w1 = a1[words];
  87                 w2 = a2[words];
  88
  89                 mask = htonl((0xffffffff) << (0x20 - bits));
  90
  91                 if ((w1 ^ w2) & mask)
  92                         return 1;
  93         }
  94
  95         return 0;
  96 }
  97
  98 int xfrm_xfrmproto_is_ipsec(__u8 proto)
  99 {
 100         return (proto ==  IPPROTO_ESP ||
 101                 proto ==  IPPROTO_AH  ||
 102                 proto ==  IPPROTO_COMP);
 103 }
 104
 105 int xfrm_xfrmproto_is_ro(__u8 proto)
 106 {
 107         return (proto ==  IPPROTO_ROUTING ||
 108                 proto ==  IPPROTO_DSTOPTS);
 109 }
 110
 111 struct typeent {
 112         const char *t_name;
 113         int t_type;
 114 };
 115
 116 static const struct typeent xfrmproto_types[]= {
 117         { "esp", IPPROTO_ESP }, { "ah", IPPROTO_AH }, { "comp", IPPROTO_COMP },
 118         { "route2", IPPROTO_ROUTING }, { "hao", IPPROTO_DSTOPTS },
 119         { "ipsec-any", IPSEC_PROTO_ANY },
 120         { NULL, -1 }
 121 };
 122
 123 int xfrm_xfrmproto_getbyname(char *name)
 124 {
 125         int i;
 126
 127         for (i = 0; ; i++) {
 128                 const struct typeent *t = &xfrmproto_types[i];
 129                 if (!t->t_name || t->t_type == -1)
 130                         break;
 131
 132                 if (strcmp(t->t_name, name) == 0)
 133                         return t->t_type;
 134         }
 135
 136         return -1;
 137 }
 138
 139 const char *strxf_xfrmproto(__u8 proto)
 140 {
 141         static char str[16];
 142         int i;
 143
 144         for (i = 0; ; i++) {
 145                 const struct typeent *t = &xfrmproto_types[i];
 146                 if (!t->t_name || t->t_type == -1)
 147                         break;
 148
 149                 if (t->t_type == proto)
 150                         return t->t_name;
 151         }
 152
 153         sprintf(str, "%u", proto);
 154         return str;
 155 }
 156
 157 static const struct typeent algo_types[]= {
 158         { "enc", XFRMA_ALG_CRYPT }, { "auth", XFRMA_ALG_AUTH },
 159         { "comp", XFRMA_ALG_COMP }, { "aead", XFRMA_ALG_AEAD },
 160         { "auth-trunc", XFRMA_ALG_AUTH_TRUNC },
 161         { NULL, -1 }
 162 };
 163
 164 int xfrm_algotype_getbyname(char *name)
 165 {
 166         int i;
 167
 168         for (i = 0; ; i++) {
 169                 const struct typeent *t = &algo_types[i];
 170                 if (!t->t_name || t->t_type == -1)
 171                         break;
 172
 173                 if (strcmp(t->t_name, name) == 0)
 174                         return t->t_type;
 175         }
 176
 177         return -1;
 178 }
 179
 180 const char *strxf_algotype(int type)
 181 {
 182         static char str[32];
 183         int i;
 184
 185         for (i = 0; ; i++) {
 186                 const struct typeent *t = &algo_types[i];
 187                 if (!t->t_name || t->t_type == -1)
 188                         break;
 189
 190                 if (t->t_type == type)
 191                         return t->t_name;
 192         }
 193
 194         sprintf(str, "%d", type);
 195         return str;
 196 }
 197
 198 const char *strxf_mask8(__u8 mask)
 199 {
 200         static char str[16];
 201         const int sn = sizeof(mask) * 8 - 1;
 202         __u8 b;
 203         int i = 0;
 204
 205         for (b = (1 << sn); b > 0; b >>= 1)
 206                 str[i++] = ((b & mask) ? '1' : '0');
 207         str[i] = '\0';
 208
 209         return str;
 210 }
 211
 212 const char *strxf_mask32(__u32 mask)
 213 {
 214         static char str[16];
 215
 216         sprintf(str, "%.8x", mask);
 217
 218         return str;
 219 }
 220
 221 const char *strxf_share(__u8 share)
 222 {
 223         static char str[32];
 224
 225         switch (share) {
 226         case XFRM_SHARE_ANY:
 227                 strcpy(str, "any");
 228                 break;
 229         case XFRM_SHARE_SESSION:
 230                 strcpy(str, "session");
 231                 break;
 232         case XFRM_SHARE_USER:
 233                 strcpy(str, "user");
 234                 break;
 235         case XFRM_SHARE_UNIQUE:
 236                 strcpy(str, "unique");
 237                 break;
 238         default:
 239                 sprintf(str, "%u", share);
 240                 break;
 241         }
 242
 243         return str;
 244 }
 245
 246 const char *strxf_proto(__u8 proto)
 247 {
 248         static char buf[32];
 249         struct protoent *pp;
 250         const char *p;
 251
 252         pp = getprotobynumber(proto);
 253         if (pp)
 254                 p = pp->p_name;
 255         else {
 256                 sprintf(buf, "%u", proto);
 257                 p = buf;
 258         }
 259
 260         return p;
 261 }
 262
 263 const char *strxf_ptype(__u8 ptype)
 264 {
 265         static char str[16];
 266
 267         switch (ptype) {
 268         case XFRM_POLICY_TYPE_MAIN:
 269                 strcpy(str, "main");
 270                 break;
 271         case XFRM_POLICY_TYPE_SUB:
 272                 strcpy(str, "sub");
 273                 break;
 274         default:
 275                 sprintf(str, "%u", ptype);
 276                 break;
 277         }
 278
 279         return str;
 280 }
 281
 282 void xfrm_id_info_print(xfrm_address_t *saddr, struct xfrm_id *id,
 283                         __u8 mode, __u32 reqid, __u16 family, int force_spi,
 284                         FILE *fp, const char *prefix, const char *title)
 285 {
 286         char abuf[256];
 287
 288         if (title)
 289                 fputs(title, fp);
 290
 291         memset(abuf, '\0', sizeof(abuf));
 292         fprintf(fp, "src %s ", rt_addr_n2a(family, sizeof(*saddr),
 293                                            saddr, abuf, sizeof(abuf)));
 294         memset(abuf, '\0', sizeof(abuf));
 295         fprintf(fp, "dst %s", rt_addr_n2a(family, sizeof(id->daddr),
 296                                           &id->daddr, abuf, sizeof(abuf)));
 297         fprintf(fp, "%s", _SL_);
 298
 299         if (prefix)
 300                 fputs(prefix, fp);
 301         fprintf(fp, "\t");
 302
 303         fprintf(fp, "proto %s ", strxf_xfrmproto(id->proto));
 304
 305         if (show_stats > 0 || force_spi || id->spi) {
 306                 __u32 spi = ntohl(id->spi);
 307                 fprintf(fp, "spi 0x%08x", spi);
 308                 if (show_stats > 0)
 309                         fprintf(fp, "(%u)", spi);
 310                 fprintf(fp, " ");
 311         }
 312
 313         fprintf(fp, "reqid %u", reqid);
 314         if (show_stats > 0)
 315                 fprintf(fp, "(0x%08x)", reqid);
 316         fprintf(fp, " ");
 317
 318         fprintf(fp, "mode ");
 319         switch (mode) {
 320         case XFRM_MODE_TRANSPORT:
 321                 fprintf(fp, "transport");
 322                 break;
 323         case XFRM_MODE_TUNNEL:
 324                 fprintf(fp, "tunnel");
 325                 break;
 326         case XFRM_MODE_ROUTEOPTIMIZATION:
 327                 fprintf(fp, "ro");
 328                 break;
 329         case XFRM_MODE_IN_TRIGGER:
 330                 fprintf(fp, "in_trigger");
 331                 break;
 332         case XFRM_MODE_BEET:
 333                 fprintf(fp, "beet");
 334                 break;
 335         default:
 336                 fprintf(fp, "%u", mode);
 337                 break;
 338         }
 339         fprintf(fp, "%s", _SL_);
 340 }
 341
 342 static const char *strxf_limit(__u64 limit)
 343 {
 344         static char str[32];
 345         if (limit == XFRM_INF)
 346                 strcpy(str, "(INF)");
 347         else
 348                 sprintf(str, "%llu", (unsigned long long) limit);
 349
 350         return str;
 351 }
 352
 353 void xfrm_stats_print(struct xfrm_stats *s, FILE *fp, const char *prefix)
 354 {
 355         if (prefix)
 356                 fputs(prefix, fp);
 357         fprintf(fp, "stats:%s", _SL_);
 358
 359         if (prefix)
 360                 fputs(prefix, fp);
 361         fprintf(fp, "  replay-window %u replay %u failed %u%s",
 362                 s->replay_window, s->replay, s->integrity_failed, _SL_);
 363 }
 364
 365 static const char *strxf_time(__u64 time)
 366 {
 367         static char str[32];
 368
 369         if (time == 0)
 370                 strcpy(str, "-");
 371         else {
 372                 time_t t;
 373                 struct tm *tp;
 374
 375                 /* XXX: treat time in the same manner of kernel's
 376                  * net/xfrm/xfrm_{user,state}.c
 377                  */
 378                 t = (long)time;
 379                 tp = localtime(&t);
 380
 381                 strftime(str, sizeof(str), "%Y-%m-%d %T", tp);
 382         }
 383
 384         return str;
 385 }
 386
 387 void xfrm_lifetime_print(struct xfrm_lifetime_cfg *cfg,
 388                          struct xfrm_lifetime_cur *cur,
 389                          FILE *fp, const char *prefix)
 390 {
 391         if (cfg) {
 392                 if (prefix)
 393                         fputs(prefix, fp);
 394                 fprintf(fp, "lifetime config:%s",_SL_);
 395
 396                 if (prefix)
 397                         fputs(prefix, fp);
 398                 fprintf(fp, "  limit: soft %s(bytes),",
 399                         strxf_limit(cfg->soft_byte_limit));
 400                 fprintf(fp, " hard %s(bytes)%s",
 401                         strxf_limit(cfg->hard_byte_limit), _SL_);
 402
 403                 if (prefix)
 404                         fputs(prefix, fp);
 405                 fprintf(fp, "  limit: soft %s(packets),",
 406                         strxf_limit(cfg->soft_packet_limit));
 407                 fprintf(fp, " hard %s(packets)%s",
 408                         strxf_limit(cfg->hard_packet_limit), _SL_);
 409
 410                 if (prefix)
 411                         fputs(prefix, fp);
 412                 fprintf(fp, "  expire add: soft %llu(sec), hard %llu(sec)%s",
 413                         (unsigned long long) cfg->soft_add_expires_seconds,
 414                         (unsigned long long) cfg->hard_add_expires_seconds,
 415                         _SL_);
 416
 417                 if (prefix)
 418                         fputs(prefix, fp);
 419                 fprintf(fp, "  expire use: soft %llu(sec), hard %llu(sec)%s",
 420                         (unsigned long long) cfg->soft_use_expires_seconds,
 421                         (unsigned long long) cfg->hard_use_expires_seconds,
 422                         _SL_);
 423         }
 424         if (cur) {
 425                 if (prefix)
 426                         fputs(prefix, fp);
 427                 fprintf(fp, "lifetime current:%s", _SL_);
 428
 429                 if (prefix)
 430                         fputs(prefix, fp);
 431                 fprintf(fp, "  %llu(bytes), %llu(packets)%s",
 432                         (unsigned long long) cur->bytes,
 433                         (unsigned long long) cur->packets,
 434                          _SL_);
 435
 436                 if (prefix)
 437                         fputs(prefix, fp);
 438                 fprintf(fp, "  add %s ", strxf_time(cur->add_time));
 439                 fprintf(fp, "use %s%s", strxf_time(cur->use_time), _SL_);
 440         }
 441 }
 442
 443 void xfrm_selector_print(struct xfrm_selector *sel, __u16 family,
 444                          FILE *fp, const char *prefix)
 445 {
 446         char abuf[256];
 447         __u16 f;
 448
 449         f = sel->family;
 450         if (f == AF_UNSPEC)
 451                 f = family;
 452         if (f == AF_UNSPEC)
 453                 f = preferred_family;
 454
 455         if (prefix)
 456                 fputs(prefix, fp);
 457
 458         memset(abuf, '\0', sizeof(abuf));
 459         fprintf(fp, "src %s/%u ", rt_addr_n2a(f, sizeof(sel->saddr),
 460                                               &sel->saddr, abuf, sizeof(abuf)),
 461                 sel->prefixlen_s);
 462
 463         memset(abuf, '\0', sizeof(abuf));
 464         fprintf(fp, "dst %s/%u ", rt_addr_n2a(f, sizeof(sel->daddr),
 465                                               &sel->daddr, abuf, sizeof(abuf)),
 466                 sel->prefixlen_d);
 467
 468         if (sel->proto)
 469                 fprintf(fp, "proto %s ", strxf_proto(sel->proto));
 470         switch (sel->proto) {
 471         case IPPROTO_TCP:
 472         case IPPROTO_UDP:
 473         case IPPROTO_SCTP:
 474         case IPPROTO_DCCP:
 475         default: /* XXX */
 476                 if (sel->sport_mask)
 477                         fprintf(fp, "sport %u ", ntohs(sel->sport));
 478                 if (sel->dport_mask)
 479                         fprintf(fp, "dport %u ", ntohs(sel->dport));
 480                 break;
 481         case IPPROTO_ICMP:
 482         case IPPROTO_ICMPV6:
 483                 /* type/code is stored at sport/dport in selector */
 484                 if (sel->sport_mask)
 485                         fprintf(fp, "type %u ", ntohs(sel->sport));
 486                 if (sel->dport_mask)
 487                         fprintf(fp, "code %u ", ntohs(sel->dport));
 488                 break;
 489         case IPPROTO_GRE:
 490                 if (sel->sport_mask || sel->dport_mask)
 491                         fprintf(fp, "key %u ",
 492                                 (((__u32)ntohs(sel->sport)) << 16) +
 493                                 ntohs(sel->dport));
 494                 break;
 495         case IPPROTO_MH:
 496                 if (sel->sport_mask)
 497                         fprintf(fp, "type %u ", ntohs(sel->sport));
 498                 if (sel->dport_mask) {
 499                         if (show_stats > 0)
 500                                 fprintf(fp, "(dport) 0x%.4x ", sel->dport);
 501                 }
 502                 break;
 503         }
 504
 505         if (sel->ifindex > 0)
 506                 fprintf(fp, "dev %s ", ll_index_to_name(sel->ifindex));
 507
 508         if (show_stats > 0)
 509                 fprintf(fp, "uid %u", sel->user);
 510
 511         fprintf(fp, "%s", _SL_);
 512 }
 513
 514 static void __xfrm_algo_print(struct xfrm_algo *algo, int type, int len,
 515                               FILE *fp, const char *prefix, int newline)
 516 {
 517         int keylen;
 518         int i;
 519
 520         if (prefix)
 521                 fputs(prefix, fp);
 522
 523         fprintf(fp, "%s ", strxf_algotype(type));
 524
 525         if (len < sizeof(*algo)) {
 526                 fprintf(fp, "(ERROR truncated)");
 527                 goto fin;
 528         }
 529         len -= sizeof(*algo);
 530
 531         fprintf(fp, "%s ", algo->alg_name);
 532
 533         keylen = algo->alg_key_len / 8;
 534         if (len < keylen) {
 535                 fprintf(fp, "(ERROR truncated)");
 536                 goto fin;
 537         }
 538
 539         if (keylen > 0) {
 540                 fprintf(fp, "0x");
 541                 for (i = 0; i < keylen; i ++)
 542                         fprintf(fp, "%.2x", (unsigned char)algo->alg_key[i]);
 543
 544                 if (show_stats > 0)
 545                         fprintf(fp, " (%d bits)", algo->alg_key_len);
 546         }
 547
 548  fin:
 549         if (newline)
 550                 fprintf(fp, "%s", _SL_);
 551 }
 552
 553 static inline void xfrm_algo_print(struct xfrm_algo *algo, int type, int len,
 554                                    FILE *fp, const char *prefix)
 555 {
 556         return __xfrm_algo_print(algo, type, len, fp, prefix, 1);
 557 }
 558
 559 static void xfrm_aead_print(struct xfrm_algo_aead *algo, int len,
 560                             FILE *fp, const char *prefix)
 561 {
 562         struct xfrm_algo *base_algo = alloca(sizeof(*base_algo) + algo->alg_key_len / 8);
 563
 564         memcpy(base_algo->alg_name, algo->alg_name, sizeof(base_algo->alg_name));
 565         base_algo->alg_key_len = algo->alg_key_len;
 566         memcpy(base_algo->alg_key, algo->alg_key, algo->alg_key_len / 8);
 567
 568         __xfrm_algo_print(base_algo, XFRMA_ALG_AEAD, len, fp, prefix, 0);
 569
 570         fprintf(fp, " %d", algo->alg_icv_len);
 571
 572         fprintf(fp, "%s", _SL_);
 573 }
 574
 575 static void xfrm_auth_trunc_print(struct xfrm_algo_auth *algo, int len,
 576                                   FILE *fp, const char *prefix)
 577 {
 578         struct xfrm_algo *base_algo = alloca(sizeof(*base_algo) + algo->alg_key_len / 8);
 579
 580         memcpy(base_algo->alg_name, algo->alg_name, sizeof(base_algo->alg_name));
 581         base_algo->alg_key_len = algo->alg_key_len;
 582         memcpy(base_algo->alg_key, algo->alg_key, algo->alg_key_len / 8);
 583
 584         __xfrm_algo_print(base_algo, XFRMA_ALG_AUTH_TRUNC, len, fp, prefix, 0);
 585
 586         fprintf(fp, " %d", algo->alg_trunc_len);
 587
 588         fprintf(fp, "%s", _SL_);
 589 }
 590
 591 static void xfrm_tmpl_print(struct xfrm_user_tmpl *tmpls, int len,
 592                             __u16 family, FILE *fp, const char *prefix)
 593 {
 594         int ntmpls = len / sizeof(struct xfrm_user_tmpl);
 595         int i;
 596
 597         if (ntmpls <= 0) {
 598                 if (prefix)
 599                         fputs(prefix, fp);
 600                 fprintf(fp, "(ERROR \"tmpl\" truncated)");
 601                 fprintf(fp, "%s", _SL_);
 602                 return;
 603         }
 604
 605         for (i = 0; i < ntmpls; i++) {
 606                 struct xfrm_user_tmpl *tmpl = &tmpls[i];
 607
 608                 if (prefix)
 609                         fputs(prefix, fp);
 610
 611                 xfrm_id_info_print(&tmpl->saddr, &tmpl->id, tmpl->mode,
 612                                    tmpl->reqid, tmpl->family, 0, fp, prefix, "tmpl ");
 613
 614                 if (show_stats > 0 || tmpl->optional) {
 615                         if (prefix)
 616                                 fputs(prefix, fp);
 617                         fprintf(fp, "\t");
 618                         switch (tmpl->optional) {
 619                         case 0:
 620                                 if (show_stats > 0)
 621                                         fprintf(fp, "level required ");
 622                                 break;
 623                         case 1:
 624                                 fprintf(fp, "level use ");
 625                                 break;
 626                         default:
 627                                 fprintf(fp, "level %u ", tmpl->optional);
 628                                 break;
 629                         }
 630
 631                         if (show_stats > 0)
 632                                 fprintf(fp, "share %s ", strxf_share(tmpl->share));
 633
 634                         fprintf(fp, "%s", _SL_);
 635                 }
 636
 637                 if (show_stats > 0) {
 638                         if (prefix)
 639                                 fputs(prefix, fp);
 640                         fprintf(fp, "\t");
 641                         fprintf(fp, "%s-mask %s ",
 642                                 strxf_algotype(XFRMA_ALG_CRYPT),
 643                                 strxf_mask32(tmpl->ealgos));
 644                         fprintf(fp, "%s-mask %s ",
 645                                 strxf_algotype(XFRMA_ALG_AUTH),
 646                                 strxf_mask32(tmpl->aalgos));
 647                         fprintf(fp, "%s-mask %s",
 648                                 strxf_algotype(XFRMA_ALG_COMP),
 649                                 strxf_mask32(tmpl->calgos));
 650
 651                         fprintf(fp, "%s", _SL_);
 652                 }
 653         }
 654 }
 655
 656 int xfrm_parse_mark(struct xfrm_mark *mark, int *argcp, char ***argvp)
 657 {
 658         int argc = *argcp;
 659         char **argv = *argvp;
 660
 661         NEXT_ARG();
 662         if (get_u32(&mark->v, *argv, 0)) {
 663                 invarg("MARK value is invalid\n", *argv);
 664         }
 665         if (argc > 1)
 666                 NEXT_ARG();
 667         else { /* last entry on parse line */
 668                 mark->m = 0xffffffff;
 669                 goto done;
 670         }
 671
 672         if (strcmp(*argv, "mask") == 0) {
 673                 NEXT_ARG();
 674                 if (get_u32(&mark->m, *argv, 0)) {
 675                         invarg("MASK value is invalid\n", *argv);
 676                 }
 677         } else {
 678                 mark->m = 0xffffffff;
 679                 PREV_ARG();
 680         }
 681
 682 done:
 683         *argcp = argc;
 684         *argvp = argv;
 685
 686         return 0;
 687 }
 688
 689 void xfrm_xfrma_print(struct rtattr *tb[], __u16 family,
 690                       FILE *fp, const char *prefix)
 691 {
 692         if (tb[XFRMA_MARK]) {
 693                 struct rtattr *rta = tb[XFRMA_MARK];
 694                 struct xfrm_mark *m = (struct xfrm_mark *) RTA_DATA(rta);
 695                 fprintf(fp, "\tmark %d/0x%x\n", m->v, m->m);
 696         }
 697
 698         if (tb[XFRMA_ALG_AUTH] && !tb[XFRMA_ALG_AUTH_TRUNC]) {
 699                 struct rtattr *rta = tb[XFRMA_ALG_AUTH];
 700                 xfrm_algo_print((struct xfrm_algo *) RTA_DATA(rta),
 701                                 XFRMA_ALG_AUTH, RTA_PAYLOAD(rta), fp, prefix);
 702         }
 703
 704         if (tb[XFRMA_ALG_AUTH_TRUNC]) {
 705                 struct rtattr *rta = tb[XFRMA_ALG_AUTH_TRUNC];
 706                 xfrm_auth_trunc_print((struct xfrm_algo_auth *) RTA_DATA(rta),
 707                                       RTA_PAYLOAD(rta), fp, prefix);
 708         }
 709
 710         if (tb[XFRMA_ALG_AEAD]) {
 711                 struct rtattr *rta = tb[XFRMA_ALG_AEAD];
 712                 xfrm_aead_print((struct xfrm_algo_aead *)RTA_DATA(rta),
 713                                 RTA_PAYLOAD(rta), fp, prefix);
 714         }
 715
 716         if (tb[XFRMA_ALG_CRYPT]) {
 717                 struct rtattr *rta = tb[XFRMA_ALG_CRYPT];
 718                 xfrm_algo_print((struct xfrm_algo *) RTA_DATA(rta),
 719                                 XFRMA_ALG_CRYPT, RTA_PAYLOAD(rta), fp, prefix);
 720         }
 721
 722         if (tb[XFRMA_ALG_COMP]) {
 723                 struct rtattr *rta = tb[XFRMA_ALG_COMP];
 724                 xfrm_algo_print((struct xfrm_algo *) RTA_DATA(rta),
 725                                 XFRMA_ALG_COMP, RTA_PAYLOAD(rta), fp, prefix);
 726         }
 727
 728         if (tb[XFRMA_ENCAP]) {
 729                 struct xfrm_encap_tmpl *e;
 730                 char abuf[256];
 731
 732                 if (prefix)
 733                         fputs(prefix, fp);
 734                 fprintf(fp, "encap ");
 735
 736                 if (RTA_PAYLOAD(tb[XFRMA_ENCAP]) < sizeof(*e)) {
 737                         fprintf(fp, "(ERROR truncated)");
 738                         fprintf(fp, "%s", _SL_);
 739                         return;
 740                 }
 741                 e = (struct xfrm_encap_tmpl *) RTA_DATA(tb[XFRMA_ENCAP]);
 742
 743                 fprintf(fp, "type ");
 744                 switch (e->encap_type) {
 745                 case 1:
 746                         fprintf(fp, "espinudp-nonike ");
 747                         break;
 748                 case 2:
 749                         fprintf(fp, "espinudp ");
 750                         break;
 751                 default:
 752                         fprintf(fp, "%u ", e->encap_type);
 753                         break;
 754                 }
 755                 fprintf(fp, "sport %u ", ntohs(e->encap_sport));
 756                 fprintf(fp, "dport %u ", ntohs(e->encap_dport));
 757
 758                 memset(abuf, '\0', sizeof(abuf));
 759                 fprintf(fp, "addr %s",
 760                         rt_addr_n2a(family, sizeof(e->encap_oa),
 761                                     &e->encap_oa, abuf, sizeof(abuf)));
 762                 fprintf(fp, "%s", _SL_);
 763         }
 764
 765         if (tb[XFRMA_TMPL]) {
 766                 struct rtattr *rta = tb[XFRMA_TMPL];
 767                 xfrm_tmpl_print((struct xfrm_user_tmpl *) RTA_DATA(rta),
 768                                 RTA_PAYLOAD(rta), family, fp, prefix);
 769         }
 770
 771         if (tb[XFRMA_COADDR]) {
 772                 char abuf[256];
 773                 xfrm_address_t *coa;
 774
 775                 if (prefix)
 776                         fputs(prefix, fp);
 777                 fprintf(fp, "coa ");
 778
 779                 coa = (xfrm_address_t *)RTA_DATA(tb[XFRMA_COADDR]);
 780
 781                 if (RTA_PAYLOAD(tb[XFRMA_COADDR]) < sizeof(*coa)) {
 782                         fprintf(fp, "(ERROR truncated)");
 783                         fprintf(fp, "%s", _SL_);
 784                         return;
 785                 }
 786
 787                 memset(abuf, '\0', sizeof(abuf));
 788                 fprintf(fp, "%s",
 789                         rt_addr_n2a(family, sizeof(*coa), coa,
 790                                     abuf, sizeof(abuf)));
 791                 fprintf(fp, "%s", _SL_);
 792         }
 793
 794         if (tb[XFRMA_LASTUSED]) {
 795                 __u64 lastused;
 796
 797                 if (prefix)
 798                         fputs(prefix, fp);
 799                 fprintf(fp, "lastused ");
 800
 801                 if (RTA_PAYLOAD(tb[XFRMA_LASTUSED]) < sizeof(lastused)) {
 802                         fprintf(fp, "(ERROR truncated)");
 803                         fprintf(fp, "%s", _SL_);
 804                         return;
 805                 }
 806
 807                 lastused = rta_getattr_u64(tb[XFRMA_LASTUSED]);
 808
 809                 fprintf(fp, "%s", strxf_time(lastused));
 810                 fprintf(fp, "%s", _SL_);
 811         }
 812
 813 }
 814
 815 static int xfrm_selector_iszero(struct xfrm_selector *s)
 816 {
 817         struct xfrm_selector s0;
 818
 819         memset(&s0, 0, sizeof(s0));
 820
 821         return (memcmp(&s0, s, sizeof(s0)) == 0);
 822 }
 823
 824 void xfrm_state_info_print(struct xfrm_usersa_info *xsinfo,
 825                             struct rtattr *tb[], FILE *fp, const char *prefix,
 826                             const char *title)
 827 {
 828         char buf[STRBUF_SIZE];
 829         int force_spi = xfrm_xfrmproto_is_ipsec(xsinfo->id.proto);
 830
 831         memset(buf, '\0', sizeof(buf));
 832
 833         xfrm_id_info_print(&xsinfo->saddr, &xsinfo->id, xsinfo->mode,
 834                            xsinfo->reqid, xsinfo->family, force_spi, fp,
 835                            prefix, title);
 836
 837         if (prefix)
 838                 STRBUF_CAT(buf, prefix);
 839         STRBUF_CAT(buf, "\t");
 840
 841         fputs(buf, fp);
 842         fprintf(fp, "replay-window %u ", xsinfo->replay_window);
 843         if (show_stats > 0)
 844                 fprintf(fp, "seq 0x%08u ", xsinfo->seq);
 845         if (show_stats > 0 || xsinfo->flags) {
 846                 __u8 flags = xsinfo->flags;
 847
 848                 fprintf(fp, "flag ");
 849                 XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_NOECN, "noecn");
 850                 XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_DECAP_DSCP, "decap-dscp");
 851                 XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_NOPMTUDISC, "nopmtudisc");
 852                 XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_WILDRECV, "wildrecv");
 853                 XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_ICMP, "icmp");
 854                 XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_AF_UNSPEC, "af-unspec");
 855                 XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_ALIGN4, "align4");
 856                 if (flags)
 857                         fprintf(fp, "%x", flags);
 858         }
 859         if (show_stats > 0 && tb[XFRMA_SA_EXTRA_FLAGS]) {
 860                 __u32 extra_flags = *(__u32 *)RTA_DATA(tb[XFRMA_SA_EXTRA_FLAGS]);
 861
 862                 fprintf(fp, "extra_flag ");
 863                 XFRM_FLAG_PRINT(fp, extra_flags,
 864                                 XFRM_SA_XFLAG_DONT_ENCAP_DSCP,
 865                                 "dont-encap-dscp");
 866                 if (extra_flags)
 867                         fprintf(fp, "%x", extra_flags);
 868         }
 869         if (show_stats > 0)
 870                 fprintf(fp, " (0x%s)", strxf_mask8(xsinfo->flags));
 871         fprintf(fp, "%s", _SL_);
 872
 873         xfrm_xfrma_print(tb, xsinfo->family, fp, buf);
 874
 875         if (!xfrm_selector_iszero(&xsinfo->sel)) {
 876                 char sbuf[STRBUF_SIZE];
 877
 878                 memcpy(sbuf, buf, sizeof(sbuf));
 879                 STRBUF_CAT(sbuf, "sel ");
 880
 881                 xfrm_selector_print(&xsinfo->sel, xsinfo->family, fp, sbuf);
 882         }
 883
 884         if (show_stats > 0) {
 885                 xfrm_lifetime_print(&xsinfo->lft, &xsinfo->curlft, fp, buf);
 886                 xfrm_stats_print(&xsinfo->stats, fp, buf);
 887         }
 888
 889         if (tb[XFRMA_SEC_CTX]) {
 890                 struct xfrm_user_sec_ctx *sctx;
 891
 892                 fprintf(fp, "\tsecurity context ");
 893
 894                 if (RTA_PAYLOAD(tb[XFRMA_SEC_CTX]) < sizeof(*sctx))
 895                         fprintf(fp, "(ERROR truncated)");
 896
 897                 sctx = (struct xfrm_user_sec_ctx *)RTA_DATA(tb[XFRMA_SEC_CTX]);
 898
 899                 fprintf(fp, "%s %s", (char *)(sctx + 1), _SL_);
 900         }
 901
 902 }
 903
 904 void xfrm_policy_info_print(struct xfrm_userpolicy_info *xpinfo,
 905                             struct rtattr *tb[], FILE *fp, const char *prefix,
 906                             const char *title)
 907 {
 908         char buf[STRBUF_SIZE];
 909
 910         memset(buf, '\0', sizeof(buf));
 911
 912         xfrm_selector_print(&xpinfo->sel, preferred_family, fp, title);
 913
 914         if (tb[XFRMA_SEC_CTX]) {
 915                 struct xfrm_user_sec_ctx *sctx;
 916
 917                 fprintf(fp, "\tsecurity context ");
 918
 919                 if (RTA_PAYLOAD(tb[XFRMA_SEC_CTX]) < sizeof(*sctx))
 920                         fprintf(fp, "(ERROR truncated)");
 921
 922                 sctx = (struct xfrm_user_sec_ctx *)RTA_DATA(tb[XFRMA_SEC_CTX]);
 923
 924                 fprintf(fp, "%s ", (char *)(sctx + 1));
 925                 fprintf(fp, "%s", _SL_);
 926         }
 927
 928         if (prefix)
 929                 STRBUF_CAT(buf, prefix);
 930         STRBUF_CAT(buf, "\t");
 931
 932         fputs(buf, fp);
 933         if (xpinfo->dir >= XFRM_POLICY_MAX) {
 934                 xpinfo->dir -= XFRM_POLICY_MAX;
 935                 fprintf(fp, "socket ");
 936         } else
 937                 fprintf(fp, "dir ");
 938
 939         switch (xpinfo->dir) {
 940         case XFRM_POLICY_IN:
 941                 fprintf(fp, "in");
 942                 break;
 943         case XFRM_POLICY_OUT:
 944                 fprintf(fp, "out");
 945                 break;
 946         case XFRM_POLICY_FWD:
 947                 fprintf(fp, "fwd");
 948                 break;
 949         default:
 950                 fprintf(fp, "%u", xpinfo->dir);
 951                 break;
 952         }
 953         fprintf(fp, " ");
 954
 955         switch (xpinfo->action) {
 956         case XFRM_POLICY_ALLOW:
 957                 if (show_stats > 0)
 958                         fprintf(fp, "action allow ");
 959                 break;
 960         case XFRM_POLICY_BLOCK:
 961                 fprintf(fp, "action block ");
 962                 break;
 963         default:
 964                 fprintf(fp, "action %u ", xpinfo->action);
 965                 break;
 966         }
 967
 968         if (show_stats)
 969                 fprintf(fp, "index %u ", xpinfo->index);
 970         fprintf(fp, "priority %u ", xpinfo->priority);
 971
 972         if (tb[XFRMA_POLICY_TYPE]) {
 973                 struct xfrm_userpolicy_type *upt;
 974
 975                 fprintf(fp, "ptype ");
 976
 977                 if (RTA_PAYLOAD(tb[XFRMA_POLICY_TYPE]) < sizeof(*upt))
 978                         fprintf(fp, "(ERROR truncated)");
 979
 980                 upt = (struct xfrm_userpolicy_type *)RTA_DATA(tb[XFRMA_POLICY_TYPE]);
 981                 fprintf(fp, "%s ", strxf_ptype(upt->type));
 982         }
 983
 984         if (show_stats > 0)
 985                 fprintf(fp, "share %s ", strxf_share(xpinfo->share));
 986
 987         if (show_stats > 0 || xpinfo->flags) {
 988                 __u8 flags = xpinfo->flags;
 989
 990                 fprintf(fp, "flag ");
 991                 XFRM_FLAG_PRINT(fp, flags, XFRM_POLICY_LOCALOK, "localok");
 992                 XFRM_FLAG_PRINT(fp, flags, XFRM_POLICY_ICMP, "icmp");
 993                 if (flags)
 994                         fprintf(fp, "%x", flags);
 995         }
 996         if (show_stats > 0)
 997                 fprintf(fp, " (0x%s)", strxf_mask8(xpinfo->flags));
 998         fprintf(fp, "%s", _SL_);
 999
1000         if (show_stats > 0)
1001                 xfrm_lifetime_print(&xpinfo->lft, &xpinfo->curlft, fp, buf);
1002
1003         xfrm_xfrma_print(tb, xpinfo->sel.family, fp, buf);
1004 }
1005
1006 int xfrm_id_parse(xfrm_address_t *saddr, struct xfrm_id *id, __u16 *family,
1007                   int loose, int *argcp, char ***argvp)
1008 {
1009         int argc = *argcp;
1010         char **argv = *argvp;
1011         inet_prefix dst;
1012         inet_prefix src;
1013
1014         memset(&dst, 0, sizeof(dst));
1015         memset(&src, 0, sizeof(src));
1016
1017         while (1) {
1018                 if (strcmp(*argv, "src") == 0) {
1019                         NEXT_ARG();
1020
1021                         get_prefix(&src, *argv, preferred_family);
1022                         if (src.family == AF_UNSPEC)
1023                                 invarg("value after \"src\" has an unrecognized address family", *argv);
1024                         if (family)
1025                                 *family = src.family;
1026
1027                         memcpy(saddr, &src.data, sizeof(*saddr));
1028
1029                         filter.id_src_mask = src.bitlen;
1030
1031                 } else if (strcmp(*argv, "dst") == 0) {
1032                         NEXT_ARG();
1033
1034                         get_prefix(&dst, *argv, preferred_family);
1035                         if (dst.family == AF_UNSPEC)
1036                                 invarg("value after \"dst\" has an unrecognized address family", *argv);
1037                         if (family)
1038                                 *family = dst.family;
1039
1040                         memcpy(&id->daddr, &dst.data, sizeof(id->daddr));
1041
1042                         filter.id_dst_mask = dst.bitlen;
1043
1044                 } else if (strcmp(*argv, "proto") == 0) {
1045                         int ret;
1046
1047                         NEXT_ARG();
1048
1049                         ret = xfrm_xfrmproto_getbyname(*argv);
1050                         if (ret < 0)
1051                                 invarg("XFRM-PROTO value is invalid", *argv);
1052
1053                         id->proto = (__u8)ret;
1054
1055                         filter.id_proto_mask = XFRM_FILTER_MASK_FULL;
1056
1057                 } else if (strcmp(*argv, "spi") == 0) {
1058                         __u32 spi;
1059
1060                         NEXT_ARG();
1061                         if (get_u32(&spi, *argv, 0))
1062                                 invarg("SPI value is invalid", *argv);
1063
1064                         spi = htonl(spi);
1065                         id->spi = spi;
1066
1067                         filter.id_spi_mask = XFRM_FILTER_MASK_FULL;
1068
1069                 } else {
1070                         PREV_ARG(); /* back track */
1071                         break;
1072                 }
1073
1074                 if (!NEXT_ARG_OK())
1075                         break;
1076                 NEXT_ARG();
1077         }
1078
1079         if (src.family && dst.family && (src.family != dst.family))
1080                 invarg("the same address family is required between values after \"src\" and \"dst\"", *argv);
1081
1082         if (id->spi && id->proto) {
1083                 if (xfrm_xfrmproto_is_ro(id->proto)) {
1084                         fprintf(stderr, "\"spi\" is invalid with XFRM-PROTO value \"%s\"\n",
1085                                 strxf_xfrmproto(id->proto));
1086                         exit(1);
1087                 } else if (id->proto == IPPROTO_COMP && ntohl(id->spi) >= 0x10000) {
1088                         fprintf(stderr, "SPI value is too large with XFRM-PROTO value \"%s\"\n",
1089                                 strxf_xfrmproto(id->proto));
1090                         exit(1);
1091                 }
1092         }
1093
1094         if (loose == 0 && id->proto == 0)
1095                 missarg("XFRM-PROTO");
1096         if (argc == *argcp)
1097                 missarg("ID");
1098
1099         *argcp = argc;
1100         *argvp = argv;
1101
1102         return 0;
1103 }
1104
1105 int xfrm_mode_parse(__u8 *mode, int *argcp, char ***argvp)
1106 {
1107         int argc = *argcp;
1108         char **argv = *argvp;
1109
1110         if (matches(*argv, "transport") == 0)
1111                 *mode = XFRM_MODE_TRANSPORT;
1112         else if (matches(*argv, "tunnel") == 0)
1113                 *mode = XFRM_MODE_TUNNEL;
1114         else if (matches(*argv, "ro") == 0)
1115                 *mode = XFRM_MODE_ROUTEOPTIMIZATION;
1116         else if (matches(*argv, "in_trigger") == 0)
1117                 *mode = XFRM_MODE_IN_TRIGGER;
1118         else if (matches(*argv, "beet") == 0)
1119                 *mode = XFRM_MODE_BEET;
1120         else
1121                 invarg("MODE value is invalid", *argv);
1122
1123         *argcp = argc;
1124         *argvp = argv;
1125
1126         return 0;
1127 }
1128
1129 int xfrm_encap_type_parse(__u16 *type, int *argcp, char ***argvp)
1130 {
1131         int argc = *argcp;
1132         char **argv = *argvp;
1133
1134         if (strcmp(*argv, "espinudp-nonike") == 0)
1135                 *type = 1;
1136         else if (strcmp(*argv, "espinudp") == 0)
1137                 *type = 2;
1138         else
1139                 invarg("ENCAP-TYPE value is invalid", *argv);
1140
1141         *argcp = argc;
1142         *argvp = argv;
1143
1144         return 0;
1145 }
1146
1147 /* NOTE: reqid is used by host-byte order */
1148 int xfrm_reqid_parse(__u32 *reqid, int *argcp, char ***argvp)
1149 {
1150         int argc = *argcp;
1151         char **argv = *argvp;
1152
1153         if (get_u32(reqid, *argv, 0))
1154                 invarg("REQID value is invalid", *argv);
1155
1156         *argcp = argc;
1157         *argvp = argv;
1158
1159         return 0;
1160 }
1161
1162 static int xfrm_selector_upspec_parse(struct xfrm_selector *sel,
1163                                       int *argcp, char ***argvp)
1164 {
1165         int argc = *argcp;
1166         char **argv = *argvp;
1167         char *sportp = NULL;
1168         char *dportp = NULL;
1169         char *typep = NULL;
1170         char *codep = NULL;
1171         char *grekey = NULL;
1172
1173         while (1) {
1174                 if (strcmp(*argv, "proto") == 0) {
1175                         __u8 upspec;
1176
1177                         NEXT_ARG();
1178
1179                         if (strcmp(*argv, "any") == 0)
1180                                 upspec = 0;
1181                         else {
1182                                 struct protoent *pp;
1183                                 pp = getprotobyname(*argv);
1184                                 if (pp)
1185                                         upspec = pp->p_proto;
1186                                 else {
1187                                         if (get_u8(&upspec, *argv, 0))
1188                                                 invarg("PROTO value is invalid", *argv);
1189                                 }
1190                         }
1191                         sel->proto = upspec;
1192
1193                         filter.upspec_proto_mask = XFRM_FILTER_MASK_FULL;
1194
1195                 } else if (strcmp(*argv, "sport") == 0) {
1196                         sportp = *argv;
1197
1198                         NEXT_ARG();
1199
1200                         if (get_u16(&sel->sport, *argv, 0))
1201                                 invarg("value after \"sport\" is invalid", *argv);
1202                         sel->sport = htons(sel->sport);
1203                         if (sel->sport)
1204                                 sel->sport_mask = ~((__u16)0);
1205
1206                         filter.upspec_sport_mask = XFRM_FILTER_MASK_FULL;
1207
1208                 } else if (strcmp(*argv, "dport") == 0) {
1209                         dportp = *argv;
1210
1211                         NEXT_ARG();
1212
1213                         if (get_u16(&sel->dport, *argv, 0))
1214                                 invarg("value after \"dport\" is invalid", *argv);
1215                         sel->dport = htons(sel->dport);
1216                         if (sel->dport)
1217                                 sel->dport_mask = ~((__u16)0);
1218
1219                         filter.upspec_dport_mask = XFRM_FILTER_MASK_FULL;
1220
1221                 } else if (strcmp(*argv, "type") == 0) {
1222                         typep = *argv;
1223
1224                         NEXT_ARG();
1225
1226                         if (get_u16(&sel->sport, *argv, 0) ||
1227                             (sel->sport & ~((__u16)0xff)))
1228                                 invarg("value after \"type\" is invalid", *argv);
1229                         sel->sport = htons(sel->sport);
1230                         sel->sport_mask = ~((__u16)0);
1231
1232                         filter.upspec_sport_mask = XFRM_FILTER_MASK_FULL;
1233
1234
1235                 } else if (strcmp(*argv, "code") == 0) {
1236                         codep = *argv;
1237
1238                         NEXT_ARG();
1239
1240                         if (get_u16(&sel->dport, *argv, 0) ||
1241                             (sel->dport & ~((__u16)0xff)))
1242                                 invarg("value after \"code\" is invalid", *argv);
1243                         sel->dport = htons(sel->dport);
1244                         sel->dport_mask = ~((__u16)0);
1245
1246                         filter.upspec_dport_mask = XFRM_FILTER_MASK_FULL;
1247
1248                 } else if (strcmp(*argv, "key") == 0) {
1249                         unsigned uval;
1250
1251                         grekey = *argv;
1252
1253                         NEXT_ARG();
1254
1255                         if (strchr(*argv, '.'))
1256                                 uval = htonl(get_addr32(*argv));
1257                         else {
1258                                 if (get_unsigned(&uval, *argv, 0)<0) {
1259                                         fprintf(stderr, "value after \"key\" is invalid\n");
1260                                         exit(-1);
1261                                 }
1262                         }
1263
1264                         sel->sport = htons(uval >> 16);
1265                         sel->dport = htons(uval & 0xffff);
1266                         sel->sport_mask = ~((__u16)0);
1267                         sel->dport_mask = ~((__u16)0);
1268
1269                         filter.upspec_dport_mask = XFRM_FILTER_MASK_FULL;
1270
1271                 } else {
1272                         PREV_ARG(); /* back track */
1273                         break;
1274                 }
1275
1276                 if (!NEXT_ARG_OK())
1277                         break;
1278                 NEXT_ARG();
1279         }
1280         if (argc == *argcp)
1281                 missarg("UPSPEC");
1282         if (sportp || dportp) {
1283                 switch (sel->proto) {
1284                 case IPPROTO_TCP:
1285                 case IPPROTO_UDP:
1286                 case IPPROTO_SCTP:
1287                 case IPPROTO_DCCP:
1288                         break;
1289                 default:
1290                         fprintf(stderr, "\"sport\" and \"dport\" are invalid with PROTO value \"%s\"\n", strxf_proto(sel->proto));
1291                         exit(1);
1292                 }
1293         }
1294         if (typep || codep) {
1295                 switch (sel->proto) {
1296                 case IPPROTO_ICMP:
1297                 case IPPROTO_ICMPV6:
1298                 case IPPROTO_MH:
1299                         break;
1300                 default:
1301                         fprintf(stderr, "\"type\" and \"code\" are invalid with PROTO value \"%s\"\n", strxf_proto(sel->proto));
1302                         exit(1);
1303                 }
1304         }
1305         if (grekey) {
1306                 switch (sel->proto) {
1307                 case IPPROTO_GRE:
1308                         break;
1309                 default:
1310                         fprintf(stderr, "\"key\" is invalid with PROTO value \"%s\"\n", strxf_proto(sel->proto));
1311                         exit(1);
1312                 }
1313         }
1314
1315         *argcp = argc;
1316         *argvp = argv;
1317
1318         return 0;
1319 }
1320
1321 int xfrm_selector_parse(struct xfrm_selector *sel, int *argcp, char ***argvp)
1322 {
1323         int argc = *argcp;
1324         char **argv = *argvp;
1325         inet_prefix dst;
1326         inet_prefix src;
1327         char *upspecp = NULL;
1328
1329         memset(&dst, 0, sizeof(dst));
1330         memset(&src, 0, sizeof(src));
1331
1332         while (1) {
1333                 if (strcmp(*argv, "src") == 0) {
1334                         NEXT_ARG();
1335
1336                         get_prefix(&src, *argv, preferred_family);
1337                         if (src.family == AF_UNSPEC)
1338                                 invarg("value after \"src\" has an unrecognized address family", *argv);
1339                         sel->family = src.family;
1340
1341                         memcpy(&sel->saddr, &src.data, sizeof(sel->saddr));
1342                         sel->prefixlen_s = src.bitlen;
1343
1344                         filter.sel_src_mask = src.bitlen;
1345
1346                 } else if (strcmp(*argv, "dst") == 0) {
1347                         NEXT_ARG();
1348
1349                         get_prefix(&dst, *argv, preferred_family);
1350                         if (dst.family == AF_UNSPEC)
1351                                 invarg("value after \"dst\" has an unrecognized address family", *argv);
1352                         sel->family = dst.family;
1353
1354                         memcpy(&sel->daddr, &dst.data, sizeof(sel->daddr));
1355                         sel->prefixlen_d = dst.bitlen;
1356
1357                         filter.sel_dst_mask = dst.bitlen;
1358
1359                 } else if (strcmp(*argv, "dev") == 0) {
1360                         int ifindex;
1361
1362                         NEXT_ARG();
1363
1364                         if (strcmp(*argv, "none") == 0)
1365                                 ifindex = 0;
1366                         else {
1367                                 ifindex = ll_name_to_index(*argv);
1368                                 if (ifindex <= 0)
1369                                         invarg("DEV value is invalid", *argv);
1370                         }
1371                         sel->ifindex = ifindex;
1372
1373                         filter.sel_dev_mask = XFRM_FILTER_MASK_FULL;
1374
1375                 } else {
1376                         if (upspecp) {
1377                                 PREV_ARG(); /* back track */
1378                                 break;
1379                         } else {
1380                                 upspecp = *argv;
1381                                 xfrm_selector_upspec_parse(sel, &argc, &argv);
1382                         }
1383                 }
1384
1385                 if (!NEXT_ARG_OK())
1386                         break;
1387
1388                 NEXT_ARG();
1389         }
1390
1391         if (src.family && dst.family && (src.family != dst.family))
1392                 invarg("the same address family is required between values after \"src\" and \"dst\"", *argv);
1393
1394         if (argc == *argcp)
1395                 missarg("SELECTOR");
1396
1397         *argcp = argc;
1398         *argvp = argv;
1399
1400         return 0;
1401 }
1402
1403 int xfrm_lifetime_cfg_parse(struct xfrm_lifetime_cfg *lft,
1404                             int *argcp, char ***argvp)
1405 {
1406         int argc = *argcp;
1407         char **argv = *argvp;
1408         int ret;
1409
1410         if (strcmp(*argv, "time-soft") == 0) {
1411                 NEXT_ARG();
1412                 ret = get_u64(&lft->soft_add_expires_seconds, *argv, 0);
1413                 if (ret)
1414                         invarg("value after \"time-soft\" is invalid", *argv);
1415         } else if (strcmp(*argv, "time-hard") == 0) {
1416                 NEXT_ARG();
1417                 ret = get_u64(&lft->hard_add_expires_seconds, *argv, 0);
1418                 if (ret)
1419                         invarg("value after \"time-hard\" is invalid", *argv);
1420         } else if (strcmp(*argv, "time-use-soft") == 0) {
1421                 NEXT_ARG();
1422                 ret = get_u64(&lft->soft_use_expires_seconds, *argv, 0);
1423                 if (ret)
1424                         invarg("value after \"time-use-soft\" is invalid", *argv);
1425         } else if (strcmp(*argv, "time-use-hard") == 0) {
1426                 NEXT_ARG();
1427                 ret = get_u64(&lft->hard_use_expires_seconds, *argv, 0);
1428                 if (ret)
1429                         invarg("value after \"time-use-hard\" is invalid", *argv);
1430         } else if (strcmp(*argv, "byte-soft") == 0) {
1431                 NEXT_ARG();
1432                 ret = get_u64(&lft->soft_byte_limit, *argv, 0);
1433                 if (ret)
1434                         invarg("value after \"byte-soft\" is invalid", *argv);
1435         } else if (strcmp(*argv, "byte-hard") == 0) {
1436                 NEXT_ARG();
1437                 ret = get_u64(&lft->hard_byte_limit, *argv, 0);
1438                 if (ret)
1439                         invarg("value after \"byte-hard\" is invalid", *argv);
1440         } else if (strcmp(*argv, "packet-soft") == 0) {
1441                 NEXT_ARG();
1442                 ret = get_u64(&lft->soft_packet_limit, *argv, 0);
1443                 if (ret)
1444                         invarg("value after \"packet-soft\" is invalid", *argv);
1445         } else if (strcmp(*argv, "packet-hard") == 0) {
1446                 NEXT_ARG();
1447                 ret = get_u64(&lft->hard_packet_limit, *argv, 0);
1448                 if (ret)
1449                         invarg("value after \"packet-hard\" is invalid", *argv);
1450         } else
1451                 invarg("LIMIT value is invalid", *argv);
1452
1453         *argcp = argc;
1454         *argvp = argv;
1455
1456         return 0;
1457 }
1458
1459 int do_xfrm(int argc, char **argv)
1460 {
1461         memset(&filter, 0, sizeof(filter));
1462
1463         if (argc < 1)
1464                 usage();
1465
1466         if (matches(*argv, "state") == 0 ||
1467             matches(*argv, "sa") == 0)
1468                 return do_xfrm_state(argc-1, argv+1);
1469         else if (matches(*argv, "policy") == 0)
1470                 return do_xfrm_policy(argc-1, argv+1);
1471         else if (matches(*argv, "monitor") == 0)
1472                 return do_xfrm_monitor(argc-1, argv+1);
1473         else if (matches(*argv, "help") == 0) {
1474                 usage();
1475                 fprintf(stderr, "xfrm Object \"%s\" is unknown.\n", *argv);
1476                 exit(-1);
1477         }
1478         usage();
1479 }