ip/xfrm_state.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 iproute.c
  22  */
  23 /*
  24  * Authors:
  25  *      Masahide NAKAMURA @USAGI
  26  */
  27
  28 #include <stdio.h>
  29 #include <stdlib.h>
  30 #include <string.h>
  31 #include <netdb.h>
  32 #include <linux/xfrm.h>
  33 #include "utils.h"
  34 #include "xfrm.h"
  35 #include "ip_common.h"
  36
  37 //#define NLMSG_DELETEALL_BUF_SIZE (4096-512)
  38 #define NLMSG_DELETEALL_BUF_SIZE 8192
  39
  40 /*
  41  * Receiving buffer defines:
  42  * nlmsg
  43  *   data = struct xfrm_usersa_info
  44  *   rtattr
  45  *   rtattr
  46  *   ... (max count of rtattr is XFRM_MAX+1
  47  *
  48  *  each rtattr data = struct xfrm_algo(dynamic size) or xfrm_address_t
  49  */
  50 #define NLMSG_BUF_SIZE 4096
  51 #define RTA_BUF_SIZE 2048
  52 #define XFRM_ALGO_KEY_BUF_SIZE 512
  53 #define CTX_BUF_SIZE 256
  54
  55 static void usage(void) __attribute__((noreturn));
  56
  57 static void usage(void)
  58 {
  59         fprintf(stderr, "Usage: ip xfrm state { add | update } ID [ XFRM_OPT ] [ ctx SEC_CTX ] [ mode MODE ]\n");
  60         fprintf(stderr, "        [ reqid REQID ] [ seq SEQ ] [ replay-window SIZE ] [ flag FLAG-LIST ]\n");
  61         fprintf(stderr, "        [ encap ENCAP ] [ sel SELECTOR ] [ replay-seq SEQ ]\n");
  62         fprintf(stderr, "        [ replay-oseq SEQ ] [ LIMIT-LIST ]\n");
  63         fprintf(stderr, "Usage: ip xfrm state allocspi ID [ mode MODE ] [ reqid REQID ] [ seq SEQ ]\n");
  64         fprintf(stderr, "        [ min SPI max SPI ]\n");
  65         fprintf(stderr, "Usage: ip xfrm state { delete | get } ID\n");
  66         fprintf(stderr, "Usage: ip xfrm state { deleteall | list } [ ID ] [ mode MODE ] [ reqid REQID ]\n");
  67         fprintf(stderr, "        [ flag FLAG-LIST ]\n");
  68         fprintf(stderr, "Usage: ip xfrm state flush [ proto XFRM_PROTO ]\n");
  69         fprintf(stderr, "Usage: ip xfrm state count \n");
  70
  71         fprintf(stderr, "ID := [ src ADDR ] [ dst ADDR ] [ proto XFRM_PROTO ] [ spi SPI ] [mark MARK [mask MASK]]\n");
  72         //fprintf(stderr, "XFRM_PROTO := [ esp | ah | comp ]\n");
  73         fprintf(stderr, "XFRM_PROTO := [ ");
  74         fprintf(stderr, "%s | ", strxf_xfrmproto(IPPROTO_ESP));
  75         fprintf(stderr, "%s | ", strxf_xfrmproto(IPPROTO_AH));
  76         fprintf(stderr, "%s | ", strxf_xfrmproto(IPPROTO_COMP));
  77         fprintf(stderr, "%s | ", strxf_xfrmproto(IPPROTO_ROUTING));
  78         fprintf(stderr, "%s ", strxf_xfrmproto(IPPROTO_DSTOPTS));
  79         fprintf(stderr, "]\n");
  80
  81         //fprintf(stderr, "SPI - security parameter index(default=0)\n");
  82
  83         fprintf(stderr, "MODE := [ transport | tunnel | ro | beet ](default=transport)\n");
  84         //fprintf(stderr, "REQID - number(default=0)\n");
  85
  86         fprintf(stderr, "FLAG-LIST := [ FLAG-LIST ] FLAG\n");
  87         fprintf(stderr, "FLAG := [ noecn | decap-dscp | nopmtudisc | wildrecv | icmp | af-unspec ]\n");
  88
  89         fprintf(stderr, "ENCAP := ENCAP-TYPE SPORT DPORT OADDR\n");
  90         fprintf(stderr, "ENCAP-TYPE := espinudp | espinudp-nonike\n");
  91
  92         fprintf(stderr, "ALGO-LIST := [ ALGO-LIST ] | [ ALGO ]\n");
  93         fprintf(stderr, "ALGO := ALGO_TYPE ALGO_NAME ALGO_KEY "
  94                         "[ ALGO_ICV_LEN ]\n");
  95         fprintf(stderr, "ALGO_TYPE := [ ");
  96         fprintf(stderr, "%s | ", strxf_algotype(XFRMA_ALG_AEAD));
  97         fprintf(stderr, "%s | ", strxf_algotype(XFRMA_ALG_CRYPT));
  98         fprintf(stderr, "%s | ", strxf_algotype(XFRMA_ALG_AUTH));
  99         fprintf(stderr, "%s ", strxf_algotype(XFRMA_ALG_COMP));
 100         fprintf(stderr, "]\n");
 101
 102         //fprintf(stderr, "ALGO_NAME - algorithm name\n");
 103         //fprintf(stderr, "ALGO_KEY - algorithm key\n");
 104
 105         fprintf(stderr, "SELECTOR := src ADDR[/PLEN] dst ADDR[/PLEN] [ UPSPEC ] [ dev DEV ]\n");
 106
 107         fprintf(stderr, "UPSPEC := proto PROTO [ [ sport PORT ] [ dport PORT ] |\n");
 108         fprintf(stderr, "                        [ type NUMBER ] [ code NUMBER ] ]\n");
 109
 110
 111         //fprintf(stderr, "DEV - device name(default=none)\n");
 112         fprintf(stderr, "LIMIT-LIST := [ LIMIT-LIST ] | [ limit LIMIT ]\n");
 113         fprintf(stderr, "LIMIT := [ [time-soft|time-hard|time-use-soft|time-use-hard] SECONDS ] |\n");
 114         fprintf(stderr, "         [ [byte-soft|byte-hard] SIZE ] | [ [packet-soft|packet-hard] COUNT ]\n");
 115         exit(-1);
 116 }
 117
 118 static int xfrm_algo_parse(struct xfrm_algo *alg, enum xfrm_attr_type_t type,
 119                            char *name, char *key, char *buf, int max)
 120 {
 121         int len;
 122         int slen = strlen(key);
 123
 124 #if 0
 125         /* XXX: verifying both name and key is required! */
 126         fprintf(stderr, "warning: ALGONAME/ALGOKEY will send to kernel promiscuously!(verifying them isn't implemented yet)\n");
 127 #endif
 128
 129         strncpy(alg->alg_name, name, sizeof(alg->alg_name));
 130
 131         if (slen > 2 && strncmp(key, "0x", 2) == 0) {
 132                 /* split two chars "0x" from the top */
 133                 char *p = key + 2;
 134                 int plen = slen - 2;
 135                 int i;
 136                 int j;
 137
 138                 /* Converting hexadecimal numbered string into real key;
 139                  * Convert each two chars into one char(value). If number
 140                  * of the length is odd, add zero on the top for rounding.
 141                  */
 142
 143                 /* calculate length of the converted values(real key) */
 144                 len = (plen + 1) / 2;
 145                 if (len > max)
 146                         invarg("\"ALGOKEY\" makes buffer overflow\n", key);
 147
 148                 for (i = - (plen % 2), j = 0; j < len; i += 2, j++) {
 149                         char vbuf[3];
 150                         __u8 val;
 151
 152                         vbuf[0] = i >= 0 ? p[i] : '0';
 153                         vbuf[1] = p[i + 1];
 154                         vbuf[2] = '\0';
 155
 156                         if (get_u8(&val, vbuf, 16))
 157                                 invarg("\"ALGOKEY\" is invalid", key);
 158
 159                         buf[j] = val;
 160                 }
 161         } else {
 162                 len = slen;
 163                 if (len > 0) {
 164                         if (len > max)
 165                                 invarg("\"ALGOKEY\" makes buffer overflow\n", key);
 166
 167                         strncpy(buf, key, len);
 168                 }
 169         }
 170
 171         alg->alg_key_len = len * 8;
 172
 173         return 0;
 174 }
 175
 176 static int xfrm_seq_parse(__u32 *seq, int *argcp, char ***argvp)
 177 {
 178         int argc = *argcp;
 179         char **argv = *argvp;
 180
 181         if (get_u32(seq, *argv, 0))
 182                 invarg("\"SEQ\" is invalid", *argv);
 183
 184         *seq = htonl(*seq);
 185
 186         *argcp = argc;
 187         *argvp = argv;
 188
 189         return 0;
 190 }
 191
 192 static int xfrm_state_flag_parse(__u8 *flags, int *argcp, char ***argvp)
 193 {
 194         int argc = *argcp;
 195         char **argv = *argvp;
 196         int len = strlen(*argv);
 197
 198         if (len > 2 && strncmp(*argv, "0x", 2) == 0) {
 199                 __u8 val = 0;
 200
 201                 if (get_u8(&val, *argv, 16))
 202                         invarg("\"FLAG\" is invalid", *argv);
 203                 *flags = val;
 204         } else {
 205                 while (1) {
 206                         if (strcmp(*argv, "noecn") == 0)
 207                                 *flags |= XFRM_STATE_NOECN;
 208                         else if (strcmp(*argv, "decap-dscp") == 0)
 209                                 *flags |= XFRM_STATE_DECAP_DSCP;
 210                         else if (strcmp(*argv, "nopmtudisc") == 0)
 211                                 *flags |= XFRM_STATE_NOPMTUDISC;
 212                         else if (strcmp(*argv, "wildrecv") == 0)
 213                                 *flags |= XFRM_STATE_WILDRECV;
 214                         else if (strcmp(*argv, "icmp") == 0)
 215                                 *flags |= XFRM_STATE_ICMP;
 216                         else if (strcmp(*argv, "af-unspec") == 0)
 217                                 *flags |= XFRM_STATE_AF_UNSPEC;
 218                         else {
 219                                 PREV_ARG(); /* back track */
 220                                 break;
 221                         }
 222
 223                         if (!NEXT_ARG_OK())
 224                                 break;
 225                         NEXT_ARG();
 226                 }
 227         }
 228
 229         *argcp = argc;
 230         *argvp = argv;
 231
 232         return 0;
 233 }
 234
 235 static int xfrm_state_modify(int cmd, unsigned flags, int argc, char **argv)
 236 {
 237         struct rtnl_handle rth;
 238         struct {
 239                 struct nlmsghdr         n;
 240                 struct xfrm_usersa_info xsinfo;
 241                 char                    buf[RTA_BUF_SIZE];
 242         } req;
 243         struct xfrm_replay_state replay;
 244         char *idp = NULL;
 245         char *aeadop = NULL;
 246         char *ealgop = NULL;
 247         char *aalgop = NULL;
 248         char *calgop = NULL;
 249         char *coap = NULL;
 250         char *sctxp = NULL;
 251         struct xfrm_mark mark = {0, 0};
 252         struct {
 253                 struct xfrm_user_sec_ctx sctx;
 254                 char    str[CTX_BUF_SIZE];
 255         } ctx;
 256
 257         memset(&req, 0, sizeof(req));
 258         memset(&replay, 0, sizeof(replay));
 259         memset(&ctx, 0, sizeof(ctx));
 260
 261         req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xsinfo));
 262         req.n.nlmsg_flags = NLM_F_REQUEST|flags;
 263         req.n.nlmsg_type = cmd;
 264         req.xsinfo.family = preferred_family;
 265
 266         req.xsinfo.lft.soft_byte_limit = XFRM_INF;
 267         req.xsinfo.lft.hard_byte_limit = XFRM_INF;
 268         req.xsinfo.lft.soft_packet_limit = XFRM_INF;
 269         req.xsinfo.lft.hard_packet_limit = XFRM_INF;
 270
 271         while (argc > 0) {
 272                 if (strcmp(*argv, "mode") == 0) {
 273                         NEXT_ARG();
 274                         xfrm_mode_parse(&req.xsinfo.mode, &argc, &argv);
 275                 } else if (strcmp(*argv, "mark") == 0) {
 276                         xfrm_parse_mark(&mark, &argc, &argv);
 277                 } else if (strcmp(*argv, "reqid") == 0) {
 278                         NEXT_ARG();
 279                         xfrm_reqid_parse(&req.xsinfo.reqid, &argc, &argv);
 280                 } else if (strcmp(*argv, "seq") == 0) {
 281                         NEXT_ARG();
 282                         xfrm_seq_parse(&req.xsinfo.seq, &argc, &argv);
 283                 } else if (strcmp(*argv, "replay-window") == 0) {
 284                         NEXT_ARG();
 285                         if (get_u8(&req.xsinfo.replay_window, *argv, 0))
 286                                 invarg("\"replay-window\" value is invalid", *argv);
 287                 } else if (strcmp(*argv, "replay-seq") == 0) {
 288                         NEXT_ARG();
 289                         if (get_u32(&replay.seq, *argv, 0))
 290                                 invarg("\"replay-seq\" value is invalid", *argv);
 291                 } else if (strcmp(*argv, "replay-oseq") == 0) {
 292                         NEXT_ARG();
 293                         if (get_u32(&replay.oseq, *argv, 0))
 294                                 invarg("\"replay-oseq\" value is invalid", *argv);
 295                 } else if (strcmp(*argv, "flag") == 0) {
 296                         NEXT_ARG();
 297                         xfrm_state_flag_parse(&req.xsinfo.flags, &argc, &argv);
 298                 } else if (strcmp(*argv, "sel") == 0) {
 299                         NEXT_ARG();
 300                         xfrm_selector_parse(&req.xsinfo.sel, &argc, &argv);
 301                 } else if (strcmp(*argv, "limit") == 0) {
 302                         NEXT_ARG();
 303                         xfrm_lifetime_cfg_parse(&req.xsinfo.lft, &argc, &argv);
 304                 } else if (strcmp(*argv, "encap") == 0) {
 305                         struct xfrm_encap_tmpl encap;
 306                         inet_prefix oa;
 307                         NEXT_ARG();
 308                         xfrm_encap_type_parse(&encap.encap_type, &argc, &argv);
 309                         NEXT_ARG();
 310                         if (get_u16(&encap.encap_sport, *argv, 0))
 311                                 invarg("\"encap\" sport value is invalid", *argv);
 312                         encap.encap_sport = htons(encap.encap_sport);
 313                         NEXT_ARG();
 314                         if (get_u16(&encap.encap_dport, *argv, 0))
 315                                 invarg("\"encap\" dport value is invalid", *argv);
 316                         encap.encap_dport = htons(encap.encap_dport);
 317                         NEXT_ARG();
 318                         get_addr(&oa, *argv, AF_UNSPEC);
 319                         memcpy(&encap.encap_oa, &oa.data, sizeof(encap.encap_oa));
 320                         addattr_l(&req.n, sizeof(req.buf), XFRMA_ENCAP,
 321                                   (void *)&encap, sizeof(encap));
 322                 } else if (strcmp(*argv, "coa") == 0) {
 323                         inet_prefix coa;
 324                         xfrm_address_t xcoa;
 325
 326                         if (coap)
 327                                 duparg("coa", *argv);
 328                         coap = *argv;
 329
 330                         NEXT_ARG();
 331
 332                         get_prefix(&coa, *argv, preferred_family);
 333                         if (coa.family == AF_UNSPEC)
 334                                 invarg("\"coa\" address family is AF_UNSPEC", *argv);
 335                         if (coa.bytelen > sizeof(xcoa))
 336                                 invarg("\"coa\" address length is too large", *argv);
 337
 338                         memset(&xcoa, 0, sizeof(xcoa));
 339                         memcpy(&xcoa, &coa.data, coa.bytelen);
 340
 341                         addattr_l(&req.n, sizeof(req.buf), XFRMA_COADDR,
 342                                   (void *)&xcoa, sizeof(xcoa));
 343                 } else if (strcmp(*argv, "ctx") == 0) {
 344                         char *context;
 345
 346                         if (sctxp)
 347                                 duparg("ctx", *argv);
 348                         sctxp = *argv;
 349
 350                         NEXT_ARG();
 351                         context = *argv;
 352
 353                         xfrm_sctx_parse((char *)&ctx.str, context, &ctx.sctx);
 354                         addattr_l(&req.n, sizeof(req.buf), XFRMA_SEC_CTX,
 355                                   (void *)&ctx, ctx.sctx.len);
 356                 } else {
 357                         /* try to assume ALGO */
 358                         int type = xfrm_algotype_getbyname(*argv);
 359                         switch (type) {
 360                         case XFRMA_ALG_AEAD:
 361                         case XFRMA_ALG_CRYPT:
 362                         case XFRMA_ALG_AUTH:
 363                         case XFRMA_ALG_COMP:
 364                         {
 365                                 /* ALGO */
 366                                 struct {
 367                                         union {
 368                                                 struct xfrm_algo alg;
 369                                                 struct xfrm_algo_aead aead;
 370                                         } u;
 371                                         char buf[XFRM_ALGO_KEY_BUF_SIZE];
 372                                 } alg = {};
 373                                 int len;
 374                                 __u32 icvlen;
 375                                 char *name;
 376                                 char *key;
 377                                 char *buf;
 378
 379                                 switch (type) {
 380                                 case XFRMA_ALG_AEAD:
 381                                         if (aeadop)
 382                                                 duparg("ALGOTYPE", *argv);
 383                                         aeadop = *argv;
 384                                         break;
 385                                 case XFRMA_ALG_CRYPT:
 386                                         if (ealgop)
 387                                                 duparg("ALGOTYPE", *argv);
 388                                         ealgop = *argv;
 389                                         break;
 390                                 case XFRMA_ALG_AUTH:
 391                                         if (aalgop)
 392                                                 duparg("ALGOTYPE", *argv);
 393                                         aalgop = *argv;
 394                                         break;
 395                                 case XFRMA_ALG_COMP:
 396                                         if (calgop)
 397                                                 duparg("ALGOTYPE", *argv);
 398                                         calgop = *argv;
 399                                         break;
 400                                 default:
 401                                         /* not reached */
 402                                         invarg("\"ALGOTYPE\" is invalid\n", *argv);
 403                                 }
 404
 405                                 if (!NEXT_ARG_OK())
 406                                         missarg("ALGONAME");
 407                                 NEXT_ARG();
 408                                 name = *argv;
 409
 410                                 if (!NEXT_ARG_OK())
 411                                         missarg("ALGOKEY");
 412                                 NEXT_ARG();
 413                                 key = *argv;
 414
 415                                 buf = alg.u.alg.alg_key;
 416                                 len = sizeof(alg.u.alg);
 417
 418                                 if (type != XFRMA_ALG_AEAD)
 419                                         goto parse_algo;
 420
 421                                 if (!NEXT_ARG_OK())
 422                                         missarg("ALGOICVLEN");
 423                                 NEXT_ARG();
 424                                 if (get_u32(&icvlen, *argv, 0))
 425                                         invarg("\"aead\" ICV length is invalid",
 426                                                *argv);
 427                                 alg.u.aead.alg_icv_len = icvlen;
 428
 429                                 buf = alg.u.aead.alg_key;
 430                                 len = sizeof(alg.u.aead);
 431
 432 parse_algo:
 433                                 xfrm_algo_parse((void *)&alg, type, name, key,
 434                                                 buf, sizeof(alg.buf));
 435                                 len += alg.u.alg.alg_key_len;
 436
 437                                 addattr_l(&req.n, sizeof(req.buf), type,
 438                                           (void *)&alg, len);
 439                                 break;
 440                         }
 441                         default:
 442                                 /* try to assume ID */
 443                                 if (idp)
 444                                         invarg("unknown", *argv);
 445                                 idp = *argv;
 446
 447                                 /* ID */
 448                                 xfrm_id_parse(&req.xsinfo.saddr, &req.xsinfo.id,
 449                                               &req.xsinfo.family, 0, &argc, &argv);
 450                                 if (preferred_family == AF_UNSPEC)
 451                                         preferred_family = req.xsinfo.family;
 452                         }
 453                 }
 454                 argc--; argv++;
 455         }
 456
 457         if (replay.seq || replay.oseq)
 458                 addattr_l(&req.n, sizeof(req.buf), XFRMA_REPLAY_VAL,
 459                           (void *)&replay, sizeof(replay));
 460
 461         if (!idp) {
 462                 fprintf(stderr, "Not enough information: \"ID\" is required\n");
 463                 exit(1);
 464         }
 465
 466         if (mark.m & mark.v) {
 467                 int r = addattr_l(&req.n, sizeof(req.buf), XFRMA_MARK,
 468                                   (void *)&mark, sizeof(mark));
 469                 if (r < 0) {
 470                         fprintf(stderr, "XFRMA_MARK failed\n");
 471                         exit(1);
 472                 }
 473         }
 474
 475         switch (req.xsinfo.mode) {
 476         case XFRM_MODE_TRANSPORT:
 477         case XFRM_MODE_TUNNEL:
 478                 if (!xfrm_xfrmproto_is_ipsec(req.xsinfo.id.proto)) {
 479                         fprintf(stderr, "\"mode\" is invalid with proto=%s\n",
 480                                 strxf_xfrmproto(req.xsinfo.id.proto));
 481                         exit(1);
 482                 }
 483                 break;
 484         case XFRM_MODE_ROUTEOPTIMIZATION:
 485         case XFRM_MODE_IN_TRIGGER:
 486                 if (!xfrm_xfrmproto_is_ro(req.xsinfo.id.proto)) {
 487                         fprintf(stderr, "\"mode\" is invalid with proto=%s\n",
 488                                 strxf_xfrmproto(req.xsinfo.id.proto));
 489                         exit(1);
 490                 }
 491                 if (req.xsinfo.id.spi != 0) {
 492                         fprintf(stderr, "\"spi\" must be 0 with proto=%s\n",
 493                                 strxf_xfrmproto(req.xsinfo.id.proto));
 494                         exit(1);
 495                 }
 496                 break;
 497         default:
 498                 break;
 499         }
 500
 501         if (aeadop || ealgop || aalgop || calgop) {
 502                 if (!xfrm_xfrmproto_is_ipsec(req.xsinfo.id.proto)) {
 503                         fprintf(stderr, "\"ALGO\" is invalid with proto=%s\n",
 504                                 strxf_xfrmproto(req.xsinfo.id.proto));
 505                         exit(1);
 506                 }
 507         } else {
 508                 if (xfrm_xfrmproto_is_ipsec(req.xsinfo.id.proto)) {
 509                         fprintf(stderr, "\"ALGO\" is required with proto=%s\n",
 510                                 strxf_xfrmproto(req.xsinfo.id.proto));
 511                         exit (1);
 512                 }
 513         }
 514
 515         if (coap) {
 516                 if (!xfrm_xfrmproto_is_ro(req.xsinfo.id.proto)) {
 517                         fprintf(stderr, "\"coa\" is invalid with proto=%s\n",
 518                                 strxf_xfrmproto(req.xsinfo.id.proto));
 519                         exit(1);
 520                 }
 521         } else {
 522                 if (xfrm_xfrmproto_is_ro(req.xsinfo.id.proto)) {
 523                         fprintf(stderr, "\"coa\" is required with proto=%s\n",
 524                                 strxf_xfrmproto(req.xsinfo.id.proto));
 525                         exit (1);
 526                 }
 527         }
 528
 529         if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
 530                 exit(1);
 531
 532         if (req.xsinfo.family == AF_UNSPEC)
 533                 req.xsinfo.family = AF_INET;
 534
 535         if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0)
 536                 exit(2);
 537
 538         rtnl_close(&rth);
 539
 540         return 0;
 541 }
 542
 543 static int xfrm_state_allocspi(int argc, char **argv)
 544 {
 545         struct rtnl_handle rth;
 546         struct {
 547                 struct nlmsghdr         n;
 548                 struct xfrm_userspi_info xspi;
 549                 char                    buf[RTA_BUF_SIZE];
 550         } req;
 551         char *idp = NULL;
 552         char *minp = NULL;
 553         char *maxp = NULL;
 554         struct xfrm_mark mark = {0, 0};
 555         char res_buf[NLMSG_BUF_SIZE];
 556         struct nlmsghdr *res_n = (struct nlmsghdr *)res_buf;
 557
 558         memset(res_buf, 0, sizeof(res_buf));
 559
 560         memset(&req, 0, sizeof(req));
 561
 562         req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xspi));
 563         req.n.nlmsg_flags = NLM_F_REQUEST;
 564         req.n.nlmsg_type = XFRM_MSG_ALLOCSPI;
 565         req.xspi.info.family = preferred_family;
 566
 567 #if 0
 568         req.xsinfo.lft.soft_byte_limit = XFRM_INF;
 569         req.xsinfo.lft.hard_byte_limit = XFRM_INF;
 570         req.xsinfo.lft.soft_packet_limit = XFRM_INF;
 571         req.xsinfo.lft.hard_packet_limit = XFRM_INF;
 572 #endif
 573
 574         while (argc > 0) {
 575                 if (strcmp(*argv, "mode") == 0) {
 576                         NEXT_ARG();
 577                         xfrm_mode_parse(&req.xspi.info.mode, &argc, &argv);
 578                 } else if (strcmp(*argv, "mark") == 0) {
 579                         xfrm_parse_mark(&mark, &argc, &argv);
 580                 } else if (strcmp(*argv, "reqid") == 0) {
 581                         NEXT_ARG();
 582                         xfrm_reqid_parse(&req.xspi.info.reqid, &argc, &argv);
 583                 } else if (strcmp(*argv, "seq") == 0) {
 584                         NEXT_ARG();
 585                         xfrm_seq_parse(&req.xspi.info.seq, &argc, &argv);
 586                 } else if (strcmp(*argv, "min") == 0) {
 587                         if (minp)
 588                                 duparg("min", *argv);
 589                         minp = *argv;
 590
 591                         NEXT_ARG();
 592
 593                         if (get_u32(&req.xspi.min, *argv, 0))
 594                                 invarg("\"min\" value is invalid", *argv);
 595                 } else if (strcmp(*argv, "max") == 0) {
 596                         if (maxp)
 597                                 duparg("max", *argv);
 598                         maxp = *argv;
 599
 600                         NEXT_ARG();
 601
 602                         if (get_u32(&req.xspi.max, *argv, 0))
 603                                 invarg("\"max\" value is invalid", *argv);
 604                 } else {
 605                         /* try to assume ID */
 606                         if (idp)
 607                                 invarg("unknown", *argv);
 608                         idp = *argv;
 609
 610                         /* ID */
 611                         xfrm_id_parse(&req.xspi.info.saddr, &req.xspi.info.id,
 612                                       &req.xspi.info.family, 0, &argc, &argv);
 613                         if (req.xspi.info.id.spi) {
 614                                 fprintf(stderr, "\"SPI\" must be zero\n");
 615                                 exit(1);
 616                         }
 617                         if (preferred_family == AF_UNSPEC)
 618                                 preferred_family = req.xspi.info.family;
 619                 }
 620                 argc--; argv++;
 621         }
 622
 623         if (!idp) {
 624                 fprintf(stderr, "Not enough information: \"ID\" is required\n");
 625                 exit(1);
 626         }
 627
 628         if (minp) {
 629                 if (!maxp) {
 630                         fprintf(stderr, "\"max\" is missing\n");
 631                         exit(1);
 632                 }
 633                 if (req.xspi.min > req.xspi.max) {
 634                         fprintf(stderr, "\"min\" valie is larger than \"max\" one\n");
 635                         exit(1);
 636                 }
 637         } else {
 638                 if (maxp) {
 639                         fprintf(stderr, "\"min\" is missing\n");
 640                         exit(1);
 641                 }
 642
 643                 /* XXX: Default value defined in PF_KEY;
 644                  * See kernel's net/key/af_key.c(pfkey_getspi).
 645                  */
 646                 req.xspi.min = 0x100;
 647                 req.xspi.max = 0x0fffffff;
 648
 649                 /* XXX: IPCOMP spi is 16-bits;
 650                  * See kernel's net/xfrm/xfrm_user(verify_userspi_info).
 651                  */
 652                 if (req.xspi.info.id.proto == IPPROTO_COMP)
 653                         req.xspi.max = 0xffff;
 654         }
 655
 656         if (mark.m & mark.v) {
 657                 int r = addattr_l(&req.n, sizeof(req.buf), XFRMA_MARK,
 658                                   (void *)&mark, sizeof(mark));
 659                 if (r < 0) {
 660                         fprintf(stderr, "XFRMA_MARK failed\n");
 661                         exit(1);
 662                 }
 663         }
 664
 665         if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
 666                 exit(1);
 667
 668         if (req.xspi.info.family == AF_UNSPEC)
 669                 req.xspi.info.family = AF_INET;
 670
 671
 672         if (rtnl_talk(&rth, &req.n, 0, 0, res_n, NULL, NULL) < 0)
 673                 exit(2);
 674
 675         if (xfrm_state_print(NULL, res_n, (void*)stdout) < 0) {
 676                 fprintf(stderr, "An error :-)\n");
 677                 exit(1);
 678         }
 679
 680         rtnl_close(&rth);
 681
 682         return 0;
 683 }
 684
 685 static int xfrm_state_filter_match(struct xfrm_usersa_info *xsinfo)
 686 {
 687         if (!filter.use)
 688                 return 1;
 689
 690         if (filter.id_src_mask)
 691                 if (xfrm_addr_match(&xsinfo->saddr, &filter.xsinfo.saddr,
 692                                     filter.id_src_mask))
 693                         return 0;
 694         if (filter.id_dst_mask)
 695                 if (xfrm_addr_match(&xsinfo->id.daddr, &filter.xsinfo.id.daddr,
 696                                     filter.id_dst_mask))
 697                         return 0;
 698         if ((xsinfo->id.proto^filter.xsinfo.id.proto)&filter.id_proto_mask)
 699                 return 0;
 700         if ((xsinfo->id.spi^filter.xsinfo.id.spi)&filter.id_spi_mask)
 701                 return 0;
 702         if ((xsinfo->mode^filter.xsinfo.mode)&filter.mode_mask)
 703                 return 0;
 704         if ((xsinfo->reqid^filter.xsinfo.reqid)&filter.reqid_mask)
 705                 return 0;
 706         if (filter.state_flags_mask)
 707                 if ((xsinfo->flags & filter.xsinfo.flags) == 0)
 708                         return 0;
 709
 710         return 1;
 711 }
 712
 713 int xfrm_state_print(const struct sockaddr_nl *who, struct nlmsghdr *n,
 714                      void *arg)
 715 {
 716         FILE *fp = (FILE*)arg;
 717         struct rtattr * tb[XFRMA_MAX+1];
 718         struct rtattr * rta;
 719         struct xfrm_usersa_info *xsinfo = NULL;
 720         struct xfrm_user_expire *xexp = NULL;
 721         struct xfrm_usersa_id   *xsid = NULL;
 722         int len = n->nlmsg_len;
 723
 724         if (n->nlmsg_type != XFRM_MSG_NEWSA &&
 725             n->nlmsg_type != XFRM_MSG_DELSA &&
 726             n->nlmsg_type != XFRM_MSG_UPDSA &&
 727             n->nlmsg_type != XFRM_MSG_EXPIRE) {
 728                 fprintf(stderr, "Not a state: %08x %08x %08x\n",
 729                         n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
 730                 return 0;
 731         }
 732
 733         if (n->nlmsg_type == XFRM_MSG_DELSA) {
 734                 /* Dont blame me for this .. Herbert made me do it */
 735                 xsid = NLMSG_DATA(n);
 736                 len -= NLMSG_SPACE(sizeof(*xsid));
 737         } else if (n->nlmsg_type == XFRM_MSG_EXPIRE) {
 738                 xexp = NLMSG_DATA(n);
 739                 xsinfo = &xexp->state;
 740                 len -= NLMSG_SPACE(sizeof(*xexp));
 741         } else {
 742                 xexp = NULL;
 743                 xsinfo = NLMSG_DATA(n);
 744                 len -= NLMSG_SPACE(sizeof(*xsinfo));
 745         }
 746
 747         if (len < 0) {
 748                 fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
 749                 return -1;
 750         }
 751
 752         if (xsinfo && !xfrm_state_filter_match(xsinfo))
 753                 return 0;
 754
 755         if (n->nlmsg_type == XFRM_MSG_DELSA)
 756                 fprintf(fp, "Deleted ");
 757         else if (n->nlmsg_type == XFRM_MSG_UPDSA)
 758                 fprintf(fp, "Updated ");
 759         else if (n->nlmsg_type == XFRM_MSG_EXPIRE)
 760                 fprintf(fp, "Expired ");
 761
 762         if (n->nlmsg_type == XFRM_MSG_DELSA)
 763                 rta = XFRMSID_RTA(xsid);
 764         else if (n->nlmsg_type == XFRM_MSG_EXPIRE)
 765                 rta = XFRMEXP_RTA(xexp);
 766         else
 767                 rta = XFRMS_RTA(xsinfo);
 768
 769         parse_rtattr(tb, XFRMA_MAX, rta, len);
 770
 771         if (n->nlmsg_type == XFRM_MSG_DELSA) {
 772                 //xfrm_policy_id_print();
 773
 774                 if (!tb[XFRMA_SA]) {
 775                         fprintf(stderr, "Buggy XFRM_MSG_DELSA: no XFRMA_SA\n");
 776                         return -1;
 777                 }
 778                 if (RTA_PAYLOAD(tb[XFRMA_SA]) < sizeof(*xsinfo)) {
 779                         fprintf(stderr, "Buggy XFRM_MSG_DELPOLICY: too short XFRMA_POLICY len\n");
 780                         return -1;
 781                 }
 782                 xsinfo = RTA_DATA(tb[XFRMA_SA]);
 783         }
 784
 785         xfrm_state_info_print(xsinfo, tb, fp, NULL, NULL);
 786
 787         if (n->nlmsg_type == XFRM_MSG_EXPIRE) {
 788                 fprintf(fp, "\t");
 789                 fprintf(fp, "hard %u", xexp->hard);
 790                 fprintf(fp, "%s", _SL_);
 791         }
 792
 793         if (oneline)
 794                 fprintf(fp, "\n");
 795         fflush(fp);
 796
 797         return 0;
 798 }
 799
 800 static int xfrm_state_get_or_delete(int argc, char **argv, int delete)
 801 {
 802         struct rtnl_handle rth;
 803         struct {
 804                 struct nlmsghdr         n;
 805                 struct xfrm_usersa_id   xsid;
 806                 char                    buf[RTA_BUF_SIZE];
 807         } req;
 808         struct xfrm_id id;
 809         char *idp = NULL;
 810         struct xfrm_mark mark = {0, 0};
 811
 812         memset(&req, 0, sizeof(req));
 813
 814         req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xsid));
 815         req.n.nlmsg_flags = NLM_F_REQUEST;
 816         req.n.nlmsg_type = delete ? XFRM_MSG_DELSA : XFRM_MSG_GETSA;
 817         req.xsid.family = preferred_family;
 818
 819         while (argc > 0) {
 820                 xfrm_address_t saddr;
 821
 822                 if (strcmp(*argv, "mark") == 0) {
 823                         xfrm_parse_mark(&mark, &argc, &argv);
 824                 } else {
 825                         if (idp)
 826                                 invarg("unknown", *argv);
 827                         idp = *argv;
 828
 829                         /* ID */
 830                         memset(&id, 0, sizeof(id));
 831                         memset(&saddr, 0, sizeof(saddr));
 832                         xfrm_id_parse(&saddr, &id, &req.xsid.family, 0,
 833                                       &argc, &argv);
 834
 835                         memcpy(&req.xsid.daddr, &id.daddr, sizeof(req.xsid.daddr));
 836                         req.xsid.spi = id.spi;
 837                         req.xsid.proto = id.proto;
 838
 839                         addattr_l(&req.n, sizeof(req.buf), XFRMA_SRCADDR,
 840                                   (void *)&saddr, sizeof(saddr));
 841                 }
 842
 843                 argc--; argv++;
 844         }
 845
 846         if (mark.m & mark.v) {
 847                 int r = addattr_l(&req.n, sizeof(req.buf), XFRMA_MARK,
 848                                   (void *)&mark, sizeof(mark));
 849                 if (r < 0) {
 850                         fprintf(stderr, "XFRMA_MARK failed\n");
 851                         exit(1);
 852                 }
 853         }
 854
 855         if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
 856                 exit(1);
 857
 858         if (req.xsid.family == AF_UNSPEC)
 859                 req.xsid.family = AF_INET;
 860
 861         if (delete) {
 862                 if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0)
 863                         exit(2);
 864         } else {
 865                 char buf[NLMSG_BUF_SIZE];
 866                 struct nlmsghdr *res_n = (struct nlmsghdr *)buf;
 867
 868                 memset(buf, 0, sizeof(buf));
 869
 870                 if (rtnl_talk(&rth, &req.n, 0, 0, res_n, NULL, NULL) < 0)
 871                         exit(2);
 872
 873                 if (xfrm_state_print(NULL, res_n, (void*)stdout) < 0) {
 874                         fprintf(stderr, "An error :-)\n");
 875                         exit(1);
 876                 }
 877         }
 878
 879         rtnl_close(&rth);
 880
 881         return 0;
 882 }
 883
 884 /*
 885  * With an existing state of nlmsg, make new nlmsg for deleting the state
 886  * and store it to buffer.
 887  */
 888 static int xfrm_state_keep(const struct sockaddr_nl *who,
 889                            struct nlmsghdr *n,
 890                            void *arg)
 891 {
 892         struct xfrm_buffer *xb = (struct xfrm_buffer *)arg;
 893         struct rtnl_handle *rth = xb->rth;
 894         struct xfrm_usersa_info *xsinfo = NLMSG_DATA(n);
 895         int len = n->nlmsg_len;
 896         struct nlmsghdr *new_n;
 897         struct xfrm_usersa_id *xsid;
 898
 899         if (n->nlmsg_type != XFRM_MSG_NEWSA) {
 900                 fprintf(stderr, "Not a state: %08x %08x %08x\n",
 901                         n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
 902                 return 0;
 903         }
 904
 905         len -= NLMSG_LENGTH(sizeof(*xsinfo));
 906         if (len < 0) {
 907                 fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
 908                 return -1;
 909         }
 910
 911         if (!xfrm_state_filter_match(xsinfo))
 912                 return 0;
 913
 914         if (xb->offset > xb->size) {
 915                 fprintf(stderr, "State buffer overflow\n");
 916                 return -1;
 917         }
 918
 919         new_n = (struct nlmsghdr *)(xb->buf + xb->offset);
 920         new_n->nlmsg_len = NLMSG_LENGTH(sizeof(*xsid));
 921         new_n->nlmsg_flags = NLM_F_REQUEST;
 922         new_n->nlmsg_type = XFRM_MSG_DELSA;
 923         new_n->nlmsg_seq = ++rth->seq;
 924
 925         xsid = NLMSG_DATA(new_n);
 926         xsid->family = xsinfo->family;
 927         memcpy(&xsid->daddr, &xsinfo->id.daddr, sizeof(xsid->daddr));
 928         xsid->spi = xsinfo->id.spi;
 929         xsid->proto = xsinfo->id.proto;
 930
 931         addattr_l(new_n, xb->size, XFRMA_SRCADDR, &xsinfo->saddr,
 932                   sizeof(xsid->daddr));
 933
 934         xb->offset += new_n->nlmsg_len;
 935         xb->nlmsg_count ++;
 936
 937         return 0;
 938 }
 939
 940 static int xfrm_state_list_or_deleteall(int argc, char **argv, int deleteall)
 941 {
 942         char *idp = NULL;
 943         struct rtnl_handle rth;
 944
 945         if(argc > 0)
 946                 filter.use = 1;
 947         filter.xsinfo.family = preferred_family;
 948
 949         while (argc > 0) {
 950                 if (strcmp(*argv, "mode") == 0) {
 951                         NEXT_ARG();
 952                         xfrm_mode_parse(&filter.xsinfo.mode, &argc, &argv);
 953
 954                         filter.mode_mask = XFRM_FILTER_MASK_FULL;
 955
 956                 } else if (strcmp(*argv, "reqid") == 0) {
 957                         NEXT_ARG();
 958                         xfrm_reqid_parse(&filter.xsinfo.reqid, &argc, &argv);
 959
 960                         filter.reqid_mask = XFRM_FILTER_MASK_FULL;
 961
 962                 } else if (strcmp(*argv, "flag") == 0) {
 963                         NEXT_ARG();
 964                         xfrm_state_flag_parse(&filter.xsinfo.flags, &argc, &argv);
 965
 966                         filter.state_flags_mask = XFRM_FILTER_MASK_FULL;
 967
 968                 } else {
 969                         if (idp)
 970                                 invarg("unknown", *argv);
 971                         idp = *argv;
 972
 973                         /* ID */
 974                         xfrm_id_parse(&filter.xsinfo.saddr, &filter.xsinfo.id,
 975                                       &filter.xsinfo.family, 1, &argc, &argv);
 976                         if (preferred_family == AF_UNSPEC)
 977                                 preferred_family = filter.xsinfo.family;
 978                 }
 979                 argc--; argv++;
 980         }
 981
 982         if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
 983                 exit(1);
 984
 985         if (deleteall) {
 986                 struct xfrm_buffer xb;
 987                 char buf[NLMSG_DELETEALL_BUF_SIZE];
 988                 int i;
 989
 990                 xb.buf = buf;
 991                 xb.size = sizeof(buf);
 992                 xb.rth = &rth;
 993
 994                 for (i = 0; ; i++) {
 995                         xb.offset = 0;
 996                         xb.nlmsg_count = 0;
 997
 998                         if (show_stats > 1)
 999                                 fprintf(stderr, "Delete-all round = %d\n", i);
1000
1001                         if (rtnl_wilddump_request(&rth, preferred_family, XFRM_MSG_GETSA) < 0) {
1002                                 perror("Cannot send dump request");
1003                                 exit(1);
1004                         }
1005
1006                         if (rtnl_dump_filter(&rth, xfrm_state_keep, &xb, NULL, NULL) < 0) {
1007                                 fprintf(stderr, "Delete-all terminated\n");
1008                                 exit(1);
1009                         }
1010                         if (xb.nlmsg_count == 0) {
1011                                 if (show_stats > 1)
1012                                         fprintf(stderr, "Delete-all completed\n");
1013                                 break;
1014                         }
1015
1016                         if (rtnl_send_check(&rth, xb.buf, xb.offset) < 0) {
1017                                 perror("Failed to send delete-all request\n");
1018                                 exit(1);
1019                         }
1020                         if (show_stats > 1)
1021                                 fprintf(stderr, "Delete-all nlmsg count = %d\n", xb.nlmsg_count);
1022
1023                         xb.offset = 0;
1024                         xb.nlmsg_count = 0;
1025                 }
1026
1027         } else {
1028                 if (rtnl_wilddump_request(&rth, preferred_family, XFRM_MSG_GETSA) < 0) {
1029                         perror("Cannot send dump request");
1030                         exit(1);
1031                 }
1032
1033                 if (rtnl_dump_filter(&rth, xfrm_state_print, stdout, NULL, NULL) < 0) {
1034                         fprintf(stderr, "Dump terminated\n");
1035                         exit(1);
1036                 }
1037         }
1038
1039         rtnl_close(&rth);
1040
1041         exit(0);
1042 }
1043
1044 int print_sadinfo(struct nlmsghdr *n, void *arg)
1045 {
1046         FILE *fp = (FILE*)arg;
1047         __u32 *f = NLMSG_DATA(n);
1048         struct rtattr *tb[XFRMA_SAD_MAX+1];
1049         struct rtattr *rta;
1050         __u32 *cnt;
1051
1052         int len = n->nlmsg_len;
1053
1054         len -= NLMSG_LENGTH(sizeof(__u32));
1055         if (len < 0) {
1056                 fprintf(stderr, "SADinfo: Wrong len %d\n", len);
1057                 return -1;
1058         }
1059
1060         rta = XFRMSAPD_RTA(f);
1061         parse_rtattr(tb, XFRMA_SAD_MAX, rta, len);
1062
1063         if (tb[XFRMA_SAD_CNT]) {
1064                 fprintf(fp,"\t SAD");
1065                 cnt = (__u32 *)RTA_DATA(tb[XFRMA_SAD_CNT]);
1066                 fprintf(fp," count %d", *cnt);
1067         } else {
1068                 fprintf(fp,"BAD SAD info returned\n");
1069                 return -1;
1070         }
1071
1072         if (show_stats) {
1073                 if (tb[XFRMA_SAD_HINFO]) {
1074                         struct xfrmu_sadhinfo *si;
1075
1076                         if (RTA_PAYLOAD(tb[XFRMA_SAD_HINFO]) < sizeof(*si)) {
1077                                 fprintf(fp,"BAD SAD length returned\n");
1078                                 return -1;
1079                         }
1080
1081                         si = RTA_DATA(tb[XFRMA_SAD_HINFO]);
1082                         fprintf(fp," (buckets ");
1083                         fprintf(fp,"count %d", si->sadhcnt);
1084                         fprintf(fp," Max %d", si->sadhmcnt);
1085                         fprintf(fp,")");
1086                 }
1087         }
1088         fprintf(fp,"\n");
1089
1090         return 0;
1091 }
1092
1093 static int xfrm_sad_getinfo(int argc, char **argv)
1094 {
1095         struct rtnl_handle rth;
1096         struct {
1097                 struct nlmsghdr                 n;
1098                 __u32                           flags;
1099                 char                            ans[64];
1100         } req;
1101
1102         memset(&req, 0, sizeof(req));
1103         req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.flags));
1104         req.n.nlmsg_flags = NLM_F_REQUEST;
1105         req.n.nlmsg_type = XFRM_MSG_GETSADINFO;
1106         req.flags = 0XFFFFFFFF;
1107
1108         if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
1109                 exit(1);
1110
1111         if (rtnl_talk(&rth, &req.n, 0, 0, &req.n, NULL, NULL) < 0)
1112                 exit(2);
1113
1114         print_sadinfo(&req.n, (void*)stdout);
1115
1116         rtnl_close(&rth);
1117
1118         return 0;
1119 }
1120
1121 static int xfrm_state_flush(int argc, char **argv)
1122 {
1123         struct rtnl_handle rth;
1124         struct {
1125                 struct nlmsghdr                 n;
1126                 struct xfrm_usersa_flush        xsf;
1127         } req;
1128         char *protop = NULL;
1129
1130         memset(&req, 0, sizeof(req));
1131
1132         req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xsf));
1133         req.n.nlmsg_flags = NLM_F_REQUEST;
1134         req.n.nlmsg_type = XFRM_MSG_FLUSHSA;
1135         req.xsf.proto = 0;
1136
1137         while (argc > 0) {
1138                 if (strcmp(*argv, "proto") == 0) {
1139                         int ret;
1140
1141                         if (protop)
1142                                 duparg("proto", *argv);
1143                         protop = *argv;
1144
1145                         NEXT_ARG();
1146
1147                         ret = xfrm_xfrmproto_getbyname(*argv);
1148                         if (ret < 0)
1149                                 invarg("\"XFRM_PROTO\" is invalid", *argv);
1150
1151                         req.xsf.proto = (__u8)ret;
1152                 } else
1153                         invarg("unknown", *argv);
1154
1155                 argc--; argv++;
1156         }
1157
1158         if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
1159                 exit(1);
1160
1161         if (show_stats > 1)
1162                 fprintf(stderr, "Flush state proto=%s\n",
1163                         strxf_xfrmproto(req.xsf.proto));
1164
1165         if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0)
1166                 exit(2);
1167
1168         rtnl_close(&rth);
1169
1170         return 0;
1171 }
1172
1173 int do_xfrm_state(int argc, char **argv)
1174 {
1175         if (argc < 1)
1176                 return xfrm_state_list_or_deleteall(0, NULL, 0);
1177
1178         if (matches(*argv, "add") == 0)
1179                 return xfrm_state_modify(XFRM_MSG_NEWSA, 0,
1180                                          argc-1, argv+1);
1181         if (matches(*argv, "update") == 0)
1182                 return xfrm_state_modify(XFRM_MSG_UPDSA, 0,
1183                                          argc-1, argv+1);
1184         if (matches(*argv, "allocspi") == 0)
1185                 return xfrm_state_allocspi(argc-1, argv+1);
1186         if (matches(*argv, "delete") == 0)
1187                 return xfrm_state_get_or_delete(argc-1, argv+1, 1);
1188         if (matches(*argv, "deleteall") == 0 || matches(*argv, "delall") == 0)
1189                 return xfrm_state_list_or_deleteall(argc-1, argv+1, 1);
1190         if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
1191             || matches(*argv, "lst") == 0)
1192                 return xfrm_state_list_or_deleteall(argc-1, argv+1, 0);
1193         if (matches(*argv, "get") == 0)
1194                 return xfrm_state_get_or_delete(argc-1, argv+1, 0);
1195         if (matches(*argv, "flush") == 0)
1196                 return xfrm_state_flush(argc-1, argv+1);
1197         if (matches(*argv, "count") == 0) {
1198                 return xfrm_sad_getinfo(argc, argv);
1199         }
1200         if (matches(*argv, "help") == 0)
1201                 usage();
1202         fprintf(stderr, "Command \"%s\" is unknown, try \"ip xfrm state help\".\n", *argv);
1203         exit(-1);
1204 }