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 | ALGO_TRUNC_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_AUTH_TRUNC));
 100         fprintf(stderr, "%s ", strxf_algotype(XFRMA_ALG_COMP));
 101         fprintf(stderr, "]\n");
 102
 103         //fprintf(stderr, "ALGO_NAME - algorithm name\n");
 104         //fprintf(stderr, "ALGO_KEY - algorithm key\n");
 105
 106         fprintf(stderr, "SELECTOR := src ADDR[/PLEN] dst ADDR[/PLEN] [ UPSPEC ] [ dev DEV ]\n");
 107
 108         fprintf(stderr, "UPSPEC := proto PROTO [ [ sport PORT ] [ dport PORT ] |\n");
 109         fprintf(stderr, "                        [ type NUMBER ] [ code NUMBER ] ]\n");
 110
 111
 112         //fprintf(stderr, "DEV - device name(default=none)\n");
 113         fprintf(stderr, "LIMIT-LIST := [ LIMIT-LIST ] | [ limit LIMIT ]\n");
 114         fprintf(stderr, "LIMIT := [ [time-soft|time-hard|time-use-soft|time-use-hard] SECONDS ] |\n");
 115         fprintf(stderr, "         [ [byte-soft|byte-hard] SIZE ] | [ [packet-soft|packet-hard] COUNT ]\n");
 116         exit(-1);
 117 }
 118
 119 static int xfrm_algo_parse(struct xfrm_algo *alg, enum xfrm_attr_type_t type,
 120                            char *name, char *key, char *buf, int max)
 121 {
 122         int len;
 123         int slen = strlen(key);
 124
 125 #if 0
 126         /* XXX: verifying both name and key is required! */
 127         fprintf(stderr, "warning: ALGONAME/ALGOKEY will send to kernel promiscuously!(verifying them isn't implemented yet)\n");
 128 #endif
 129
 130         strncpy(alg->alg_name, name, sizeof(alg->alg_name));
 131
 132         if (slen > 2 && strncmp(key, "0x", 2) == 0) {
 133                 /* split two chars "0x" from the top */
 134                 char *p = key + 2;
 135                 int plen = slen - 2;
 136                 int i;
 137                 int j;
 138
 139                 /* Converting hexadecimal numbered string into real key;
 140                  * Convert each two chars into one char(value). If number
 141                  * of the length is odd, add zero on the top for rounding.
 142                  */
 143
 144                 /* calculate length of the converted values(real key) */
 145                 len = (plen + 1) / 2;
 146                 if (len > max)
 147                         invarg("\"ALGOKEY\" makes buffer overflow\n", key);
 148
 149                 for (i = - (plen % 2), j = 0; j < len; i += 2, j++) {
 150                         char vbuf[3];
 151                         __u8 val;
 152
 153                         vbuf[0] = i >= 0 ? p[i] : '0';
 154                         vbuf[1] = p[i + 1];
 155                         vbuf[2] = '\0';
 156
 157                         if (get_u8(&val, vbuf, 16))
 158                                 invarg("\"ALGOKEY\" is invalid", key);
 159
 160                         buf[j] = val;
 161                 }
 162         } else {
 163                 len = slen;
 164                 if (len > 0) {
 165                         if (len > max)
 166                                 invarg("\"ALGOKEY\" makes buffer overflow\n", key);
 167
 168                         strncpy(buf, key, len);
 169                 }
 170         }
 171
 172         alg->alg_key_len = len * 8;
 173
 174         return 0;
 175 }
 176
 177 static int xfrm_seq_parse(__u32 *seq, int *argcp, char ***argvp)
 178 {
 179         int argc = *argcp;
 180         char **argv = *argvp;
 181
 182         if (get_u32(seq, *argv, 0))
 183                 invarg("\"SEQ\" is invalid", *argv);
 184
 185         *seq = htonl(*seq);
 186
 187         *argcp = argc;
 188         *argvp = argv;
 189
 190         return 0;
 191 }
 192
 193 static int xfrm_state_flag_parse(__u8 *flags, int *argcp, char ***argvp)
 194 {
 195         int argc = *argcp;
 196         char **argv = *argvp;
 197         int len = strlen(*argv);
 198
 199         if (len > 2 && strncmp(*argv, "0x", 2) == 0) {
 200                 __u8 val = 0;
 201
 202                 if (get_u8(&val, *argv, 16))
 203                         invarg("\"FLAG\" is invalid", *argv);
 204                 *flags = val;
 205         } else {
 206                 while (1) {
 207                         if (strcmp(*argv, "noecn") == 0)
 208                                 *flags |= XFRM_STATE_NOECN;
 209                         else if (strcmp(*argv, "decap-dscp") == 0)
 210                                 *flags |= XFRM_STATE_DECAP_DSCP;
 211                         else if (strcmp(*argv, "nopmtudisc") == 0)
 212                                 *flags |= XFRM_STATE_NOPMTUDISC;
 213                         else if (strcmp(*argv, "wildrecv") == 0)
 214                                 *flags |= XFRM_STATE_WILDRECV;
 215                         else if (strcmp(*argv, "icmp") == 0)
 216                                 *flags |= XFRM_STATE_ICMP;
 217                         else if (strcmp(*argv, "af-unspec") == 0)
 218                                 *flags |= XFRM_STATE_AF_UNSPEC;
 219                         else {
 220                                 PREV_ARG(); /* back track */
 221                                 break;
 222                         }
 223
 224                         if (!NEXT_ARG_OK())
 225                                 break;
 226                         NEXT_ARG();
 227                 }
 228         }
 229
 230         *argcp = argc;
 231         *argvp = argv;
 232
 233         return 0;
 234 }
 235
 236 static int xfrm_state_modify(int cmd, unsigned flags, int argc, char **argv)
 237 {
 238         struct rtnl_handle rth;
 239         struct {
 240                 struct nlmsghdr         n;
 241                 struct xfrm_usersa_info xsinfo;
 242                 char                    buf[RTA_BUF_SIZE];
 243         } req;
 244         struct xfrm_replay_state replay;
 245         char *idp = NULL;
 246         char *aeadop = NULL;
 247         char *ealgop = NULL;
 248         char *aalgop = NULL;
 249         char *calgop = NULL;
 250         char *coap = NULL;
 251         char *sctxp = NULL;
 252         struct xfrm_mark mark = {0, 0};
 253         struct {
 254                 struct xfrm_user_sec_ctx sctx;
 255                 char    str[CTX_BUF_SIZE];
 256         } ctx;
 257
 258         memset(&req, 0, sizeof(req));
 259         memset(&replay, 0, sizeof(replay));
 260         memset(&ctx, 0, sizeof(ctx));
 261
 262         req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xsinfo));
 263         req.n.nlmsg_flags = NLM_F_REQUEST|flags;
 264         req.n.nlmsg_type = cmd;
 265         req.xsinfo.family = preferred_family;
 266
 267         req.xsinfo.lft.soft_byte_limit = XFRM_INF;
 268         req.xsinfo.lft.hard_byte_limit = XFRM_INF;
 269         req.xsinfo.lft.soft_packet_limit = XFRM_INF;
 270         req.xsinfo.lft.hard_packet_limit = XFRM_INF;
 271
 272         while (argc > 0) {
 273                 if (strcmp(*argv, "mode") == 0) {
 274                         NEXT_ARG();
 275                         xfrm_mode_parse(&req.xsinfo.mode, &argc, &argv);
 276                 } else if (strcmp(*argv, "mark") == 0) {
 277                         xfrm_parse_mark(&mark, &argc, &argv);
 278                 } else if (strcmp(*argv, "reqid") == 0) {
 279                         NEXT_ARG();
 280                         xfrm_reqid_parse(&req.xsinfo.reqid, &argc, &argv);
 281                 } else if (strcmp(*argv, "seq") == 0) {
 282                         NEXT_ARG();
 283                         xfrm_seq_parse(&req.xsinfo.seq, &argc, &argv);
 284                 } else if (strcmp(*argv, "replay-window") == 0) {
 285                         NEXT_ARG();
 286                         if (get_u8(&req.xsinfo.replay_window, *argv, 0))
 287                                 invarg("\"replay-window\" value is invalid", *argv);
 288                 } else if (strcmp(*argv, "replay-seq") == 0) {
 289                         NEXT_ARG();
 290                         if (get_u32(&replay.seq, *argv, 0))
 291                                 invarg("\"replay-seq\" value is invalid", *argv);
 292                 } else if (strcmp(*argv, "replay-oseq") == 0) {
 293                         NEXT_ARG();
 294                         if (get_u32(&replay.oseq, *argv, 0))
 295                                 invarg("\"replay-oseq\" value is invalid", *argv);
 296                 } else if (strcmp(*argv, "flag") == 0) {
 297                         NEXT_ARG();
 298                         xfrm_state_flag_parse(&req.xsinfo.flags, &argc, &argv);
 299                 } else if (strcmp(*argv, "sel") == 0) {
 300                         NEXT_ARG();
 301                         xfrm_selector_parse(&req.xsinfo.sel, &argc, &argv);
 302                 } else if (strcmp(*argv, "limit") == 0) {
 303                         NEXT_ARG();
 304                         xfrm_lifetime_cfg_parse(&req.xsinfo.lft, &argc, &argv);
 305                 } else if (strcmp(*argv, "encap") == 0) {
 306                         struct xfrm_encap_tmpl encap;
 307                         inet_prefix oa;
 308                         NEXT_ARG();
 309                         xfrm_encap_type_parse(&encap.encap_type, &argc, &argv);
 310                         NEXT_ARG();
 311                         if (get_u16(&encap.encap_sport, *argv, 0))
 312                                 invarg("\"encap\" sport value is invalid", *argv);
 313                         encap.encap_sport = htons(encap.encap_sport);
 314                         NEXT_ARG();
 315                         if (get_u16(&encap.encap_dport, *argv, 0))
 316                                 invarg("\"encap\" dport value is invalid", *argv);
 317                         encap.encap_dport = htons(encap.encap_dport);
 318                         NEXT_ARG();
 319                         get_addr(&oa, *argv, AF_UNSPEC);
 320                         memcpy(&encap.encap_oa, &oa.data, sizeof(encap.encap_oa));
 321                         addattr_l(&req.n, sizeof(req.buf), XFRMA_ENCAP,
 322                                   (void *)&encap, sizeof(encap));
 323                 } else if (strcmp(*argv, "coa") == 0) {
 324                         inet_prefix coa;
 325                         xfrm_address_t xcoa;
 326
 327                         if (coap)
 328                                 duparg("coa", *argv);
 329                         coap = *argv;
 330
 331                         NEXT_ARG();
 332
 333                         get_prefix(&coa, *argv, preferred_family);
 334                         if (coa.family == AF_UNSPEC)
 335                                 invarg("\"coa\" address family is AF_UNSPEC", *argv);
 336                         if (coa.bytelen > sizeof(xcoa))
 337                                 invarg("\"coa\" address length is too large", *argv);
 338
 339                         memset(&xcoa, 0, sizeof(xcoa));
 340                         memcpy(&xcoa, &coa.data, coa.bytelen);
 341
 342                         addattr_l(&req.n, sizeof(req.buf), XFRMA_COADDR,
 343                                   (void *)&xcoa, sizeof(xcoa));
 344                 } else if (strcmp(*argv, "ctx") == 0) {
 345                         char *context;
 346
 347                         if (sctxp)
 348                                 duparg("ctx", *argv);
 349                         sctxp = *argv;
 350
 351                         NEXT_ARG();
 352                         context = *argv;
 353
 354                         xfrm_sctx_parse((char *)&ctx.str, context, &ctx.sctx);
 355                         addattr_l(&req.n, sizeof(req.buf), XFRMA_SEC_CTX,
 356                                   (void *)&ctx, ctx.sctx.len);
 357                 } else {
 358                         /* try to assume ALGO */
 359                         int type = xfrm_algotype_getbyname(*argv);
 360                         switch (type) {
 361                         case XFRMA_ALG_AEAD:
 362                         case XFRMA_ALG_CRYPT:
 363                         case XFRMA_ALG_AUTH:
 364                         case XFRMA_ALG_AUTH_TRUNC:
 365                         case XFRMA_ALG_COMP:
 366                         {
 367                                 /* ALGO */
 368                                 struct {
 369                                         union {
 370                                                 struct xfrm_algo alg;
 371                                                 struct xfrm_algo_aead aead;
 372                                                 struct xfrm_algo_auth auth;
 373                                         } u;
 374                                         char buf[XFRM_ALGO_KEY_BUF_SIZE];
 375                                 } alg = {};
 376                                 int len;
 377                                 __u32 icvlen, trunclen;
 378                                 char *name;
 379                                 char *key;
 380                                 char *buf;
 381
 382                                 switch (type) {
 383                                 case XFRMA_ALG_AEAD:
 384                                         if (aeadop)
 385                                                 duparg("ALGOTYPE", *argv);
 386                                         aeadop = *argv;
 387                                         break;
 388                                 case XFRMA_ALG_CRYPT:
 389                                         if (ealgop)
 390                                                 duparg("ALGOTYPE", *argv);
 391                                         ealgop = *argv;
 392                                         break;
 393                                 case XFRMA_ALG_AUTH:
 394                                 case XFRMA_ALG_AUTH_TRUNC:
 395                                         if (aalgop)
 396                                                 duparg("ALGOTYPE", *argv);
 397                                         aalgop = *argv;
 398                                         break;
 399                                 case XFRMA_ALG_COMP:
 400                                         if (calgop)
 401                                                 duparg("ALGOTYPE", *argv);
 402                                         calgop = *argv;
 403                                         break;
 404                                 default:
 405                                         /* not reached */
 406                                         invarg("\"ALGOTYPE\" is invalid\n", *argv);
 407                                 }
 408
 409                                 if (!NEXT_ARG_OK())
 410                                         missarg("ALGONAME");
 411                                 NEXT_ARG();
 412                                 name = *argv;
 413
 414                                 if (!NEXT_ARG_OK())
 415                                         missarg("ALGOKEY");
 416                                 NEXT_ARG();
 417                                 key = *argv;
 418
 419                                 buf = alg.u.alg.alg_key;
 420                                 len = sizeof(alg.u.alg);
 421
 422                                 switch (type) {
 423                                 case XFRMA_ALG_AEAD:
 424                                         if (!NEXT_ARG_OK())
 425                                                 missarg("ALGOICVLEN");
 426                                         NEXT_ARG();
 427                                         if (get_u32(&icvlen, *argv, 0))
 428                                                 invarg("\"aead\" ICV length is invalid",
 429                                                        *argv);
 430                                         alg.u.aead.alg_icv_len = icvlen;
 431
 432                                         buf = alg.u.aead.alg_key;
 433                                         len = sizeof(alg.u.aead);
 434                                         break;
 435                                 case XFRMA_ALG_AUTH_TRUNC:
 436                                         if (!NEXT_ARG_OK())
 437                                                 missarg("ALGOTRUNCLEN");
 438                                         NEXT_ARG();
 439                                         if (get_u32(&trunclen, *argv, 0))
 440                                                 invarg("\"auth\" trunc length is invalid",
 441                                                        *argv);
 442                                         alg.u.auth.alg_trunc_len = trunclen;
 443
 444                                         buf = alg.u.auth.alg_key;
 445                                         len = sizeof(alg.u.auth);
 446                                         break;
 447                                 }
 448
 449                                 xfrm_algo_parse((void *)&alg, type, name, key,
 450                                                 buf, sizeof(alg.buf));
 451                                 len += alg.u.alg.alg_key_len;
 452
 453                                 addattr_l(&req.n, sizeof(req.buf), type,
 454                                           (void *)&alg, len);
 455                                 break;
 456                         }
 457                         default:
 458                                 /* try to assume ID */
 459                                 if (idp)
 460                                         invarg("unknown", *argv);
 461                                 idp = *argv;
 462
 463                                 /* ID */
 464                                 xfrm_id_parse(&req.xsinfo.saddr, &req.xsinfo.id,
 465                                               &req.xsinfo.family, 0, &argc, &argv);
 466                                 if (preferred_family == AF_UNSPEC)
 467                                         preferred_family = req.xsinfo.family;
 468                         }
 469                 }
 470                 argc--; argv++;
 471         }
 472
 473         if (replay.seq || replay.oseq)
 474                 addattr_l(&req.n, sizeof(req.buf), XFRMA_REPLAY_VAL,
 475                           (void *)&replay, sizeof(replay));
 476
 477         if (!idp) {
 478                 fprintf(stderr, "Not enough information: \"ID\" is required\n");
 479                 exit(1);
 480         }
 481
 482         if (mark.m & mark.v) {
 483                 int r = addattr_l(&req.n, sizeof(req.buf), XFRMA_MARK,
 484                                   (void *)&mark, sizeof(mark));
 485                 if (r < 0) {
 486                         fprintf(stderr, "XFRMA_MARK failed\n");
 487                         exit(1);
 488                 }
 489         }
 490
 491         switch (req.xsinfo.mode) {
 492         case XFRM_MODE_TRANSPORT:
 493         case XFRM_MODE_TUNNEL:
 494                 if (!xfrm_xfrmproto_is_ipsec(req.xsinfo.id.proto)) {
 495                         fprintf(stderr, "\"mode\" is invalid with proto=%s\n",
 496                                 strxf_xfrmproto(req.xsinfo.id.proto));
 497                         exit(1);
 498                 }
 499                 break;
 500         case XFRM_MODE_ROUTEOPTIMIZATION:
 501         case XFRM_MODE_IN_TRIGGER:
 502                 if (!xfrm_xfrmproto_is_ro(req.xsinfo.id.proto)) {
 503                         fprintf(stderr, "\"mode\" is invalid with proto=%s\n",
 504                                 strxf_xfrmproto(req.xsinfo.id.proto));
 505                         exit(1);
 506                 }
 507                 if (req.xsinfo.id.spi != 0) {
 508                         fprintf(stderr, "\"spi\" must be 0 with proto=%s\n",
 509                                 strxf_xfrmproto(req.xsinfo.id.proto));
 510                         exit(1);
 511                 }
 512                 break;
 513         default:
 514                 break;
 515         }
 516
 517         if (aeadop || ealgop || aalgop || calgop) {
 518                 if (!xfrm_xfrmproto_is_ipsec(req.xsinfo.id.proto)) {
 519                         fprintf(stderr, "\"ALGO\" is invalid with proto=%s\n",
 520                                 strxf_xfrmproto(req.xsinfo.id.proto));
 521                         exit(1);
 522                 }
 523         } else {
 524                 if (xfrm_xfrmproto_is_ipsec(req.xsinfo.id.proto)) {
 525                         fprintf(stderr, "\"ALGO\" is required with proto=%s\n",
 526                                 strxf_xfrmproto(req.xsinfo.id.proto));
 527                         exit (1);
 528                 }
 529         }
 530
 531         if (coap) {
 532                 if (!xfrm_xfrmproto_is_ro(req.xsinfo.id.proto)) {
 533                         fprintf(stderr, "\"coa\" is invalid with proto=%s\n",
 534                                 strxf_xfrmproto(req.xsinfo.id.proto));
 535                         exit(1);
 536                 }
 537         } else {
 538                 if (xfrm_xfrmproto_is_ro(req.xsinfo.id.proto)) {
 539                         fprintf(stderr, "\"coa\" is required with proto=%s\n",
 540                                 strxf_xfrmproto(req.xsinfo.id.proto));
 541                         exit (1);
 542                 }
 543         }
 544
 545         if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
 546                 exit(1);
 547
 548         if (req.xsinfo.family == AF_UNSPEC)
 549                 req.xsinfo.family = AF_INET;
 550
 551         if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0)
 552                 exit(2);
 553
 554         rtnl_close(&rth);
 555
 556         return 0;
 557 }
 558
 559 static int xfrm_state_allocspi(int argc, char **argv)
 560 {
 561         struct rtnl_handle rth;
 562         struct {
 563                 struct nlmsghdr         n;
 564                 struct xfrm_userspi_info xspi;
 565                 char                    buf[RTA_BUF_SIZE];
 566         } req;
 567         char *idp = NULL;
 568         char *minp = NULL;
 569         char *maxp = NULL;
 570         struct xfrm_mark mark = {0, 0};
 571         char res_buf[NLMSG_BUF_SIZE];
 572         struct nlmsghdr *res_n = (struct nlmsghdr *)res_buf;
 573
 574         memset(res_buf, 0, sizeof(res_buf));
 575
 576         memset(&req, 0, sizeof(req));
 577
 578         req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xspi));
 579         req.n.nlmsg_flags = NLM_F_REQUEST;
 580         req.n.nlmsg_type = XFRM_MSG_ALLOCSPI;
 581         req.xspi.info.family = preferred_family;
 582
 583 #if 0
 584         req.xsinfo.lft.soft_byte_limit = XFRM_INF;
 585         req.xsinfo.lft.hard_byte_limit = XFRM_INF;
 586         req.xsinfo.lft.soft_packet_limit = XFRM_INF;
 587         req.xsinfo.lft.hard_packet_limit = XFRM_INF;
 588 #endif
 589
 590         while (argc > 0) {
 591                 if (strcmp(*argv, "mode") == 0) {
 592                         NEXT_ARG();
 593                         xfrm_mode_parse(&req.xspi.info.mode, &argc, &argv);
 594                 } else if (strcmp(*argv, "mark") == 0) {
 595                         xfrm_parse_mark(&mark, &argc, &argv);
 596                 } else if (strcmp(*argv, "reqid") == 0) {
 597                         NEXT_ARG();
 598                         xfrm_reqid_parse(&req.xspi.info.reqid, &argc, &argv);
 599                 } else if (strcmp(*argv, "seq") == 0) {
 600                         NEXT_ARG();
 601                         xfrm_seq_parse(&req.xspi.info.seq, &argc, &argv);
 602                 } else if (strcmp(*argv, "min") == 0) {
 603                         if (minp)
 604                                 duparg("min", *argv);
 605                         minp = *argv;
 606
 607                         NEXT_ARG();
 608
 609                         if (get_u32(&req.xspi.min, *argv, 0))
 610                                 invarg("\"min\" value is invalid", *argv);
 611                 } else if (strcmp(*argv, "max") == 0) {
 612                         if (maxp)
 613                                 duparg("max", *argv);
 614                         maxp = *argv;
 615
 616                         NEXT_ARG();
 617
 618                         if (get_u32(&req.xspi.max, *argv, 0))
 619                                 invarg("\"max\" value is invalid", *argv);
 620                 } else {
 621                         /* try to assume ID */
 622                         if (idp)
 623                                 invarg("unknown", *argv);
 624                         idp = *argv;
 625
 626                         /* ID */
 627                         xfrm_id_parse(&req.xspi.info.saddr, &req.xspi.info.id,
 628                                       &req.xspi.info.family, 0, &argc, &argv);
 629                         if (req.xspi.info.id.spi) {
 630                                 fprintf(stderr, "\"SPI\" must be zero\n");
 631                                 exit(1);
 632                         }
 633                         if (preferred_family == AF_UNSPEC)
 634                                 preferred_family = req.xspi.info.family;
 635                 }
 636                 argc--; argv++;
 637         }
 638
 639         if (!idp) {
 640                 fprintf(stderr, "Not enough information: \"ID\" is required\n");
 641                 exit(1);
 642         }
 643
 644         if (minp) {
 645                 if (!maxp) {
 646                         fprintf(stderr, "\"max\" is missing\n");
 647                         exit(1);
 648                 }
 649                 if (req.xspi.min > req.xspi.max) {
 650                         fprintf(stderr, "\"min\" valie is larger than \"max\" one\n");
 651                         exit(1);
 652                 }
 653         } else {
 654                 if (maxp) {
 655                         fprintf(stderr, "\"min\" is missing\n");
 656                         exit(1);
 657                 }
 658
 659                 /* XXX: Default value defined in PF_KEY;
 660                  * See kernel's net/key/af_key.c(pfkey_getspi).
 661                  */
 662                 req.xspi.min = 0x100;
 663                 req.xspi.max = 0x0fffffff;
 664
 665                 /* XXX: IPCOMP spi is 16-bits;
 666                  * See kernel's net/xfrm/xfrm_user(verify_userspi_info).
 667                  */
 668                 if (req.xspi.info.id.proto == IPPROTO_COMP)
 669                         req.xspi.max = 0xffff;
 670         }
 671
 672         if (mark.m & mark.v) {
 673                 int r = addattr_l(&req.n, sizeof(req.buf), XFRMA_MARK,
 674                                   (void *)&mark, sizeof(mark));
 675                 if (r < 0) {
 676                         fprintf(stderr, "XFRMA_MARK failed\n");
 677                         exit(1);
 678                 }
 679         }
 680
 681         if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
 682                 exit(1);
 683
 684         if (req.xspi.info.family == AF_UNSPEC)
 685                 req.xspi.info.family = AF_INET;
 686
 687
 688         if (rtnl_talk(&rth, &req.n, 0, 0, res_n, NULL, NULL) < 0)
 689                 exit(2);
 690
 691         if (xfrm_state_print(NULL, res_n, (void*)stdout) < 0) {
 692                 fprintf(stderr, "An error :-)\n");
 693                 exit(1);
 694         }
 695
 696         rtnl_close(&rth);
 697
 698         return 0;
 699 }
 700
 701 static int xfrm_state_filter_match(struct xfrm_usersa_info *xsinfo)
 702 {
 703         if (!filter.use)
 704                 return 1;
 705
 706         if (filter.id_src_mask)
 707                 if (xfrm_addr_match(&xsinfo->saddr, &filter.xsinfo.saddr,
 708                                     filter.id_src_mask))
 709                         return 0;
 710         if (filter.id_dst_mask)
 711                 if (xfrm_addr_match(&xsinfo->id.daddr, &filter.xsinfo.id.daddr,
 712                                     filter.id_dst_mask))
 713                         return 0;
 714         if ((xsinfo->id.proto^filter.xsinfo.id.proto)&filter.id_proto_mask)
 715                 return 0;
 716         if ((xsinfo->id.spi^filter.xsinfo.id.spi)&filter.id_spi_mask)
 717                 return 0;
 718         if ((xsinfo->mode^filter.xsinfo.mode)&filter.mode_mask)
 719                 return 0;
 720         if ((xsinfo->reqid^filter.xsinfo.reqid)&filter.reqid_mask)
 721                 return 0;
 722         if (filter.state_flags_mask)
 723                 if ((xsinfo->flags & filter.xsinfo.flags) == 0)
 724                         return 0;
 725
 726         return 1;
 727 }
 728
 729 int xfrm_state_print(const struct sockaddr_nl *who, struct nlmsghdr *n,
 730                      void *arg)
 731 {
 732         FILE *fp = (FILE*)arg;
 733         struct rtattr * tb[XFRMA_MAX+1];
 734         struct rtattr * rta;
 735         struct xfrm_usersa_info *xsinfo = NULL;
 736         struct xfrm_user_expire *xexp = NULL;
 737         struct xfrm_usersa_id   *xsid = NULL;
 738         int len = n->nlmsg_len;
 739
 740         if (n->nlmsg_type != XFRM_MSG_NEWSA &&
 741             n->nlmsg_type != XFRM_MSG_DELSA &&
 742             n->nlmsg_type != XFRM_MSG_UPDSA &&
 743             n->nlmsg_type != XFRM_MSG_EXPIRE) {
 744                 fprintf(stderr, "Not a state: %08x %08x %08x\n",
 745                         n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
 746                 return 0;
 747         }
 748
 749         if (n->nlmsg_type == XFRM_MSG_DELSA) {
 750                 /* Dont blame me for this .. Herbert made me do it */
 751                 xsid = NLMSG_DATA(n);
 752                 len -= NLMSG_SPACE(sizeof(*xsid));
 753         } else if (n->nlmsg_type == XFRM_MSG_EXPIRE) {
 754                 xexp = NLMSG_DATA(n);
 755                 xsinfo = &xexp->state;
 756                 len -= NLMSG_SPACE(sizeof(*xexp));
 757         } else {
 758                 xexp = NULL;
 759                 xsinfo = NLMSG_DATA(n);
 760                 len -= NLMSG_SPACE(sizeof(*xsinfo));
 761         }
 762
 763         if (len < 0) {
 764                 fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
 765                 return -1;
 766         }
 767
 768         if (xsinfo && !xfrm_state_filter_match(xsinfo))
 769                 return 0;
 770
 771         if (n->nlmsg_type == XFRM_MSG_DELSA)
 772                 fprintf(fp, "Deleted ");
 773         else if (n->nlmsg_type == XFRM_MSG_UPDSA)
 774                 fprintf(fp, "Updated ");
 775         else if (n->nlmsg_type == XFRM_MSG_EXPIRE)
 776                 fprintf(fp, "Expired ");
 777
 778         if (n->nlmsg_type == XFRM_MSG_DELSA)
 779                 rta = XFRMSID_RTA(xsid);
 780         else if (n->nlmsg_type == XFRM_MSG_EXPIRE)
 781                 rta = XFRMEXP_RTA(xexp);
 782         else
 783                 rta = XFRMS_RTA(xsinfo);
 784
 785         parse_rtattr(tb, XFRMA_MAX, rta, len);
 786
 787         if (n->nlmsg_type == XFRM_MSG_DELSA) {
 788                 //xfrm_policy_id_print();
 789
 790                 if (!tb[XFRMA_SA]) {
 791                         fprintf(stderr, "Buggy XFRM_MSG_DELSA: no XFRMA_SA\n");
 792                         return -1;
 793                 }
 794                 if (RTA_PAYLOAD(tb[XFRMA_SA]) < sizeof(*xsinfo)) {
 795                         fprintf(stderr, "Buggy XFRM_MSG_DELPOLICY: too short XFRMA_POLICY len\n");
 796                         return -1;
 797                 }
 798                 xsinfo = RTA_DATA(tb[XFRMA_SA]);
 799         }
 800
 801         xfrm_state_info_print(xsinfo, tb, fp, NULL, NULL);
 802
 803         if (n->nlmsg_type == XFRM_MSG_EXPIRE) {
 804                 fprintf(fp, "\t");
 805                 fprintf(fp, "hard %u", xexp->hard);
 806                 fprintf(fp, "%s", _SL_);
 807         }
 808
 809         if (oneline)
 810                 fprintf(fp, "\n");
 811         fflush(fp);
 812
 813         return 0;
 814 }
 815
 816 static int xfrm_state_get_or_delete(int argc, char **argv, int delete)
 817 {
 818         struct rtnl_handle rth;
 819         struct {
 820                 struct nlmsghdr         n;
 821                 struct xfrm_usersa_id   xsid;
 822                 char                    buf[RTA_BUF_SIZE];
 823         } req;
 824         struct xfrm_id id;
 825         char *idp = NULL;
 826         struct xfrm_mark mark = {0, 0};
 827
 828         memset(&req, 0, sizeof(req));
 829
 830         req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xsid));
 831         req.n.nlmsg_flags = NLM_F_REQUEST;
 832         req.n.nlmsg_type = delete ? XFRM_MSG_DELSA : XFRM_MSG_GETSA;
 833         req.xsid.family = preferred_family;
 834
 835         while (argc > 0) {
 836                 xfrm_address_t saddr;
 837
 838                 if (strcmp(*argv, "mark") == 0) {
 839                         xfrm_parse_mark(&mark, &argc, &argv);
 840                 } else {
 841                         if (idp)
 842                                 invarg("unknown", *argv);
 843                         idp = *argv;
 844
 845                         /* ID */
 846                         memset(&id, 0, sizeof(id));
 847                         memset(&saddr, 0, sizeof(saddr));
 848                         xfrm_id_parse(&saddr, &id, &req.xsid.family, 0,
 849                                       &argc, &argv);
 850
 851                         memcpy(&req.xsid.daddr, &id.daddr, sizeof(req.xsid.daddr));
 852                         req.xsid.spi = id.spi;
 853                         req.xsid.proto = id.proto;
 854
 855                         addattr_l(&req.n, sizeof(req.buf), XFRMA_SRCADDR,
 856                                   (void *)&saddr, sizeof(saddr));
 857                 }
 858
 859                 argc--; argv++;
 860         }
 861
 862         if (mark.m & mark.v) {
 863                 int r = addattr_l(&req.n, sizeof(req.buf), XFRMA_MARK,
 864                                   (void *)&mark, sizeof(mark));
 865                 if (r < 0) {
 866                         fprintf(stderr, "XFRMA_MARK failed\n");
 867                         exit(1);
 868                 }
 869         }
 870
 871         if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
 872                 exit(1);
 873
 874         if (req.xsid.family == AF_UNSPEC)
 875                 req.xsid.family = AF_INET;
 876
 877         if (delete) {
 878                 if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0)
 879                         exit(2);
 880         } else {
 881                 char buf[NLMSG_BUF_SIZE];
 882                 struct nlmsghdr *res_n = (struct nlmsghdr *)buf;
 883
 884                 memset(buf, 0, sizeof(buf));
 885
 886                 if (rtnl_talk(&rth, &req.n, 0, 0, res_n, NULL, NULL) < 0)
 887                         exit(2);
 888
 889                 if (xfrm_state_print(NULL, res_n, (void*)stdout) < 0) {
 890                         fprintf(stderr, "An error :-)\n");
 891                         exit(1);
 892                 }
 893         }
 894
 895         rtnl_close(&rth);
 896
 897         return 0;
 898 }
 899
 900 /*
 901  * With an existing state of nlmsg, make new nlmsg for deleting the state
 902  * and store it to buffer.
 903  */
 904 static int xfrm_state_keep(const struct sockaddr_nl *who,
 905                            struct nlmsghdr *n,
 906                            void *arg)
 907 {
 908         struct xfrm_buffer *xb = (struct xfrm_buffer *)arg;
 909         struct rtnl_handle *rth = xb->rth;
 910         struct xfrm_usersa_info *xsinfo = NLMSG_DATA(n);
 911         int len = n->nlmsg_len;
 912         struct nlmsghdr *new_n;
 913         struct xfrm_usersa_id *xsid;
 914
 915         if (n->nlmsg_type != XFRM_MSG_NEWSA) {
 916                 fprintf(stderr, "Not a state: %08x %08x %08x\n",
 917                         n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
 918                 return 0;
 919         }
 920
 921         len -= NLMSG_LENGTH(sizeof(*xsinfo));
 922         if (len < 0) {
 923                 fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
 924                 return -1;
 925         }
 926
 927         if (!xfrm_state_filter_match(xsinfo))
 928                 return 0;
 929
 930         if (xb->offset > xb->size) {
 931                 fprintf(stderr, "State buffer overflow\n");
 932                 return -1;
 933         }
 934
 935         new_n = (struct nlmsghdr *)(xb->buf + xb->offset);
 936         new_n->nlmsg_len = NLMSG_LENGTH(sizeof(*xsid));
 937         new_n->nlmsg_flags = NLM_F_REQUEST;
 938         new_n->nlmsg_type = XFRM_MSG_DELSA;
 939         new_n->nlmsg_seq = ++rth->seq;
 940
 941         xsid = NLMSG_DATA(new_n);
 942         xsid->family = xsinfo->family;
 943         memcpy(&xsid->daddr, &xsinfo->id.daddr, sizeof(xsid->daddr));
 944         xsid->spi = xsinfo->id.spi;
 945         xsid->proto = xsinfo->id.proto;
 946
 947         addattr_l(new_n, xb->size, XFRMA_SRCADDR, &xsinfo->saddr,
 948                   sizeof(xsid->daddr));
 949
 950         xb->offset += new_n->nlmsg_len;
 951         xb->nlmsg_count ++;
 952
 953         return 0;
 954 }
 955
 956 static int xfrm_state_list_or_deleteall(int argc, char **argv, int deleteall)
 957 {
 958         char *idp = NULL;
 959         struct rtnl_handle rth;
 960
 961         if(argc > 0)
 962                 filter.use = 1;
 963         filter.xsinfo.family = preferred_family;
 964
 965         while (argc > 0) {
 966                 if (strcmp(*argv, "mode") == 0) {
 967                         NEXT_ARG();
 968                         xfrm_mode_parse(&filter.xsinfo.mode, &argc, &argv);
 969
 970                         filter.mode_mask = XFRM_FILTER_MASK_FULL;
 971
 972                 } else if (strcmp(*argv, "reqid") == 0) {
 973                         NEXT_ARG();
 974                         xfrm_reqid_parse(&filter.xsinfo.reqid, &argc, &argv);
 975
 976                         filter.reqid_mask = XFRM_FILTER_MASK_FULL;
 977
 978                 } else if (strcmp(*argv, "flag") == 0) {
 979                         NEXT_ARG();
 980                         xfrm_state_flag_parse(&filter.xsinfo.flags, &argc, &argv);
 981
 982                         filter.state_flags_mask = XFRM_FILTER_MASK_FULL;
 983
 984                 } else {
 985                         if (idp)
 986                                 invarg("unknown", *argv);
 987                         idp = *argv;
 988
 989                         /* ID */
 990                         xfrm_id_parse(&filter.xsinfo.saddr, &filter.xsinfo.id,
 991                                       &filter.xsinfo.family, 1, &argc, &argv);
 992                         if (preferred_family == AF_UNSPEC)
 993                                 preferred_family = filter.xsinfo.family;
 994                 }
 995                 argc--; argv++;
 996         }
 997
 998         if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
 999                 exit(1);
1000
1001         if (deleteall) {
1002                 struct xfrm_buffer xb;
1003                 char buf[NLMSG_DELETEALL_BUF_SIZE];
1004                 int i;
1005
1006                 xb.buf = buf;
1007                 xb.size = sizeof(buf);
1008                 xb.rth = &rth;
1009
1010                 for (i = 0; ; i++) {
1011                         xb.offset = 0;
1012                         xb.nlmsg_count = 0;
1013
1014                         if (show_stats > 1)
1015                                 fprintf(stderr, "Delete-all round = %d\n", i);
1016
1017                         if (rtnl_wilddump_request(&rth, preferred_family, XFRM_MSG_GETSA) < 0) {
1018                                 perror("Cannot send dump request");
1019                                 exit(1);
1020                         }
1021
1022                         if (rtnl_dump_filter(&rth, xfrm_state_keep, &xb, NULL, NULL) < 0) {
1023                                 fprintf(stderr, "Delete-all terminated\n");
1024                                 exit(1);
1025                         }
1026                         if (xb.nlmsg_count == 0) {
1027                                 if (show_stats > 1)
1028                                         fprintf(stderr, "Delete-all completed\n");
1029                                 break;
1030                         }
1031
1032                         if (rtnl_send_check(&rth, xb.buf, xb.offset) < 0) {
1033                                 perror("Failed to send delete-all request\n");
1034                                 exit(1);
1035                         }
1036                         if (show_stats > 1)
1037                                 fprintf(stderr, "Delete-all nlmsg count = %d\n", xb.nlmsg_count);
1038
1039                         xb.offset = 0;
1040                         xb.nlmsg_count = 0;
1041                 }
1042
1043         } else {
1044                 if (rtnl_wilddump_request(&rth, preferred_family, XFRM_MSG_GETSA) < 0) {
1045                         perror("Cannot send dump request");
1046                         exit(1);
1047                 }
1048
1049                 if (rtnl_dump_filter(&rth, xfrm_state_print, stdout, NULL, NULL) < 0) {
1050                         fprintf(stderr, "Dump terminated\n");
1051                         exit(1);
1052                 }
1053         }
1054
1055         rtnl_close(&rth);
1056
1057         exit(0);
1058 }
1059
1060 int print_sadinfo(struct nlmsghdr *n, void *arg)
1061 {
1062         FILE *fp = (FILE*)arg;
1063         __u32 *f = NLMSG_DATA(n);
1064         struct rtattr *tb[XFRMA_SAD_MAX+1];
1065         struct rtattr *rta;
1066         __u32 *cnt;
1067
1068         int len = n->nlmsg_len;
1069
1070         len -= NLMSG_LENGTH(sizeof(__u32));
1071         if (len < 0) {
1072                 fprintf(stderr, "SADinfo: Wrong len %d\n", len);
1073                 return -1;
1074         }
1075
1076         rta = XFRMSAPD_RTA(f);
1077         parse_rtattr(tb, XFRMA_SAD_MAX, rta, len);
1078
1079         if (tb[XFRMA_SAD_CNT]) {
1080                 fprintf(fp,"\t SAD");
1081                 cnt = (__u32 *)RTA_DATA(tb[XFRMA_SAD_CNT]);
1082                 fprintf(fp," count %d", *cnt);
1083         } else {
1084                 fprintf(fp,"BAD SAD info returned\n");
1085                 return -1;
1086         }
1087
1088         if (show_stats) {
1089                 if (tb[XFRMA_SAD_HINFO]) {
1090                         struct xfrmu_sadhinfo *si;
1091
1092                         if (RTA_PAYLOAD(tb[XFRMA_SAD_HINFO]) < sizeof(*si)) {
1093                                 fprintf(fp,"BAD SAD length returned\n");
1094                                 return -1;
1095                         }
1096
1097                         si = RTA_DATA(tb[XFRMA_SAD_HINFO]);
1098                         fprintf(fp," (buckets ");
1099                         fprintf(fp,"count %d", si->sadhcnt);
1100                         fprintf(fp," Max %d", si->sadhmcnt);
1101                         fprintf(fp,")");
1102                 }
1103         }
1104         fprintf(fp,"\n");
1105
1106         return 0;
1107 }
1108
1109 static int xfrm_sad_getinfo(int argc, char **argv)
1110 {
1111         struct rtnl_handle rth;
1112         struct {
1113                 struct nlmsghdr                 n;
1114                 __u32                           flags;
1115                 char                            ans[64];
1116         } req;
1117
1118         memset(&req, 0, sizeof(req));
1119         req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.flags));
1120         req.n.nlmsg_flags = NLM_F_REQUEST;
1121         req.n.nlmsg_type = XFRM_MSG_GETSADINFO;
1122         req.flags = 0XFFFFFFFF;
1123
1124         if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
1125                 exit(1);
1126
1127         if (rtnl_talk(&rth, &req.n, 0, 0, &req.n, NULL, NULL) < 0)
1128                 exit(2);
1129
1130         print_sadinfo(&req.n, (void*)stdout);
1131
1132         rtnl_close(&rth);
1133
1134         return 0;
1135 }
1136
1137 static int xfrm_state_flush(int argc, char **argv)
1138 {
1139         struct rtnl_handle rth;
1140         struct {
1141                 struct nlmsghdr                 n;
1142                 struct xfrm_usersa_flush        xsf;
1143         } req;
1144         char *protop = NULL;
1145
1146         memset(&req, 0, sizeof(req));
1147
1148         req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xsf));
1149         req.n.nlmsg_flags = NLM_F_REQUEST;
1150         req.n.nlmsg_type = XFRM_MSG_FLUSHSA;
1151         req.xsf.proto = 0;
1152
1153         while (argc > 0) {
1154                 if (strcmp(*argv, "proto") == 0) {
1155                         int ret;
1156
1157                         if (protop)
1158                                 duparg("proto", *argv);
1159                         protop = *argv;
1160
1161                         NEXT_ARG();
1162
1163                         ret = xfrm_xfrmproto_getbyname(*argv);
1164                         if (ret < 0)
1165                                 invarg("\"XFRM_PROTO\" is invalid", *argv);
1166
1167                         req.xsf.proto = (__u8)ret;
1168                 } else
1169                         invarg("unknown", *argv);
1170
1171                 argc--; argv++;
1172         }
1173
1174         if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
1175                 exit(1);
1176
1177         if (show_stats > 1)
1178                 fprintf(stderr, "Flush state proto=%s\n",
1179                         strxf_xfrmproto(req.xsf.proto));
1180
1181         if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0)
1182                 exit(2);
1183
1184         rtnl_close(&rth);
1185
1186         return 0;
1187 }
1188
1189 int do_xfrm_state(int argc, char **argv)
1190 {
1191         if (argc < 1)
1192                 return xfrm_state_list_or_deleteall(0, NULL, 0);
1193
1194         if (matches(*argv, "add") == 0)
1195                 return xfrm_state_modify(XFRM_MSG_NEWSA, 0,
1196                                          argc-1, argv+1);
1197         if (matches(*argv, "update") == 0)
1198                 return xfrm_state_modify(XFRM_MSG_UPDSA, 0,
1199                                          argc-1, argv+1);
1200         if (matches(*argv, "allocspi") == 0)
1201                 return xfrm_state_allocspi(argc-1, argv+1);
1202         if (matches(*argv, "delete") == 0)
1203                 return xfrm_state_get_or_delete(argc-1, argv+1, 1);
1204         if (matches(*argv, "deleteall") == 0 || matches(*argv, "delall") == 0)
1205                 return xfrm_state_list_or_deleteall(argc-1, argv+1, 1);
1206         if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
1207             || matches(*argv, "lst") == 0)
1208                 return xfrm_state_list_or_deleteall(argc-1, argv+1, 0);
1209         if (matches(*argv, "get") == 0)
1210                 return xfrm_state_get_or_delete(argc-1, argv+1, 0);
1211         if (matches(*argv, "flush") == 0)
1212                 return xfrm_state_flush(argc-1, argv+1);
1213         if (matches(*argv, "count") == 0) {
1214                 return xfrm_sad_getinfo(argc, argv);
1215         }
1216         if (matches(*argv, "help") == 0)
1217                 usage();
1218         fprintf(stderr, "Command \"%s\" is unknown, try \"ip xfrm state help\".\n", *argv);
1219         exit(-1);
1220 }