ip/xfrm_policy.c

   1 /* $USAGI: $ */
   2
   3 /*
   4  * Copyright (C)2004 USAGI/WIDE Project
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, see <http://www.gnu.org/licenses>.
  18  */
  19 /*
  20  * based on iproute.c
  21  */
  22 /*
  23  * Authors:
  24  *      Masahide NAKAMURA @USAGI
  25  */
  26
  27 #include <stdio.h>
  28 #include <stdlib.h>
  29 #include <string.h>
  30 #include <netdb.h>
  31 #include <linux/netlink.h>
  32 #include "utils.h"
  33 #include "xfrm.h"
  34 #include "ip_common.h"
  35
  36 /* #define NLMSG_DELETEALL_BUF_SIZE (4096-512) */
  37 #define NLMSG_DELETEALL_BUF_SIZE 8192
  38
  39 /*
  40  * Receiving buffer defines:
  41  * nlmsg
  42  *   data = struct xfrm_userpolicy_info
  43  *   rtattr
  44  *     data = struct xfrm_user_tmpl[]
  45  */
  46 #define NLMSG_BUF_SIZE 4096
  47 #define RTA_BUF_SIZE 2048
  48 #define XFRM_TMPLS_BUF_SIZE 1024
  49 #define CTX_BUF_SIZE 256
  50
  51 static void usage(void) __attribute__((noreturn));
  52
  53 static void usage(void)
  54 {
  55         fprintf(stderr, "Usage: ip xfrm policy { add | update } SELECTOR dir DIR [ ctx CTX ]\n");
  56         fprintf(stderr, "        [ mark MARK [ mask MASK ] ] [ index INDEX ] [ ptype PTYPE ]\n");
  57         fprintf(stderr, "        [ action ACTION ] [ priority PRIORITY ] [ flag FLAG-LIST ]\n");
  58         fprintf(stderr, "        [ LIMIT-LIST ] [ TMPL-LIST ]\n");
  59         fprintf(stderr, "Usage: ip xfrm policy { delete | get } { SELECTOR | index INDEX } dir DIR\n");
  60         fprintf(stderr, "        [ ctx CTX ] [ mark MARK [ mask MASK ] ] [ ptype PTYPE ]\n");
  61         fprintf(stderr, "Usage: ip xfrm policy { deleteall | list } [ SELECTOR ] [ dir DIR ]\n");
  62         fprintf(stderr, "        [ index INDEX ] [ ptype PTYPE ] [ action ACTION ] [ priority PRIORITY ]\n");
  63         fprintf(stderr, "        [ flag FLAG-LIST ]\n");
  64         fprintf(stderr, "Usage: ip xfrm policy flush [ ptype PTYPE ]\n");
  65         fprintf(stderr, "Usage: ip xfrm policy count\n");
  66         fprintf(stderr, "Usage: ip xfrm policy set [ hthresh4 LBITS RBITS ] [ hthresh6 LBITS RBITS ]\n");
  67         fprintf(stderr, "SELECTOR := [ src ADDR[/PLEN] ] [ dst ADDR[/PLEN] ] [ dev DEV ] [ UPSPEC ]\n");
  68         fprintf(stderr, "UPSPEC := proto { { ");
  69         fprintf(stderr, "%s | ", strxf_proto(IPPROTO_TCP));
  70         fprintf(stderr, "%s | ", strxf_proto(IPPROTO_UDP));
  71         fprintf(stderr, "%s | ", strxf_proto(IPPROTO_SCTP));
  72         fprintf(stderr, "%s", strxf_proto(IPPROTO_DCCP));
  73         fprintf(stderr, " } [ sport PORT ] [ dport PORT ] |\n");
  74         fprintf(stderr, "                  { ");
  75         fprintf(stderr, "%s | ", strxf_proto(IPPROTO_ICMP));
  76         fprintf(stderr, "%s | ", strxf_proto(IPPROTO_ICMPV6));
  77         fprintf(stderr, "%s", strxf_proto(IPPROTO_MH));
  78         fprintf(stderr, " } [ type NUMBER ] [ code NUMBER ] |\n");
  79         fprintf(stderr, "                  %s", strxf_proto(IPPROTO_GRE));
  80         fprintf(stderr, " [ key { DOTTED-QUAD | NUMBER } ] | PROTO }\n");
  81         fprintf(stderr, "DIR := in | out | fwd\n");
  82         fprintf(stderr, "PTYPE := main | sub\n");
  83         fprintf(stderr, "ACTION := allow | block\n");
  84         fprintf(stderr, "FLAG-LIST := [ FLAG-LIST ] FLAG\n");
  85         fprintf(stderr, "FLAG := localok | icmp\n");
  86         fprintf(stderr, "LIMIT-LIST := [ LIMIT-LIST ] limit LIMIT\n");
  87         fprintf(stderr, "LIMIT := { time-soft | time-hard | time-use-soft | time-use-hard } SECONDS |\n");
  88         fprintf(stderr, "         { byte-soft | byte-hard } SIZE | { packet-soft | packet-hard } COUNT\n");
  89         fprintf(stderr, "TMPL-LIST := [ TMPL-LIST ] tmpl TMPL\n");
  90         fprintf(stderr, "TMPL := ID [ mode MODE ] [ reqid REQID ] [ level LEVEL ]\n");
  91         fprintf(stderr, "ID := [ src ADDR ] [ dst ADDR ] [ proto XFRM-PROTO ] [ spi SPI ]\n");
  92         fprintf(stderr, "XFRM-PROTO := ");
  93         fprintf(stderr, "%s | ", strxf_xfrmproto(IPPROTO_ESP));
  94         fprintf(stderr, "%s | ", strxf_xfrmproto(IPPROTO_AH));
  95         fprintf(stderr, "%s | ", strxf_xfrmproto(IPPROTO_COMP));
  96         fprintf(stderr, "%s | ", strxf_xfrmproto(IPPROTO_ROUTING));
  97         fprintf(stderr, "%s\n", strxf_xfrmproto(IPPROTO_DSTOPTS));
  98         fprintf(stderr, "MODE := transport | tunnel | beet | ro | in_trigger\n");
  99         fprintf(stderr, "LEVEL := required | use\n");
 100
 101         exit(-1);
 102 }
 103
 104 static int xfrm_policy_dir_parse(__u8 *dir, int *argcp, char ***argvp)
 105 {
 106         int argc = *argcp;
 107         char **argv = *argvp;
 108
 109         if (strcmp(*argv, "in") == 0)
 110                 *dir = XFRM_POLICY_IN;
 111         else if (strcmp(*argv, "out") == 0)
 112                 *dir = XFRM_POLICY_OUT;
 113         else if (strcmp(*argv, "fwd") == 0)
 114                 *dir = XFRM_POLICY_FWD;
 115         else
 116                 invarg("DIR value is invalid", *argv);
 117
 118         *argcp = argc;
 119         *argvp = argv;
 120
 121         return 0;
 122 }
 123
 124 static int xfrm_policy_ptype_parse(__u8 *ptype, int *argcp, char ***argvp)
 125 {
 126         int argc = *argcp;
 127         char **argv = *argvp;
 128
 129         if (strcmp(*argv, "main") == 0)
 130                 *ptype = XFRM_POLICY_TYPE_MAIN;
 131         else if (strcmp(*argv, "sub") == 0)
 132                 *ptype = XFRM_POLICY_TYPE_SUB;
 133         else
 134                 invarg("PTYPE value is invalid", *argv);
 135
 136         *argcp = argc;
 137         *argvp = argv;
 138
 139         return 0;
 140 }
 141
 142 static int xfrm_policy_flag_parse(__u8 *flags, int *argcp, char ***argvp)
 143 {
 144         int argc = *argcp;
 145         char **argv = *argvp;
 146         int len = strlen(*argv);
 147
 148         if (len > 2 && strncmp(*argv, "0x", 2) == 0) {
 149                 __u8 val = 0;
 150
 151                 if (get_u8(&val, *argv, 16))
 152                         invarg("FLAG value is invalid", *argv);
 153                 *flags = val;
 154         } else {
 155                 while (1) {
 156                         if (strcmp(*argv, "localok") == 0)
 157                                 *flags |= XFRM_POLICY_LOCALOK;
 158                         else if (strcmp(*argv, "icmp") == 0)
 159                                 *flags |= XFRM_POLICY_ICMP;
 160                         else {
 161                                 PREV_ARG(); /* back track */
 162                                 break;
 163                         }
 164
 165                         if (!NEXT_ARG_OK())
 166                                 break;
 167                         NEXT_ARG();
 168                 }
 169         }
 170
 171         *argcp = argc;
 172         *argvp = argv;
 173
 174         return 0;
 175 }
 176
 177 static int xfrm_tmpl_parse(struct xfrm_user_tmpl *tmpl,
 178                            int *argcp, char ***argvp)
 179 {
 180         int argc = *argcp;
 181         char **argv = *argvp;
 182         char *idp = NULL;
 183
 184         while (1) {
 185                 if (strcmp(*argv, "mode") == 0) {
 186                         NEXT_ARG();
 187                         xfrm_mode_parse(&tmpl->mode,  &argc, &argv);
 188                 } else if (strcmp(*argv, "reqid") == 0) {
 189                         NEXT_ARG();
 190                         xfrm_reqid_parse(&tmpl->reqid, &argc, &argv);
 191                 } else if (strcmp(*argv, "level") == 0) {
 192                         NEXT_ARG();
 193
 194                         if (strcmp(*argv, "required") == 0)
 195                                 tmpl->optional = 0;
 196                         else if (strcmp(*argv, "use") == 0)
 197                                 tmpl->optional = 1;
 198                         else
 199                                 invarg("LEVEL value is invalid\n", *argv);
 200
 201                 } else {
 202                         if (idp) {
 203                                 PREV_ARG(); /* back track */
 204                                 break;
 205                         }
 206                         idp = *argv;
 207                         preferred_family = AF_UNSPEC;
 208                         xfrm_id_parse(&tmpl->saddr, &tmpl->id, &tmpl->family,
 209                                       0, &argc, &argv);
 210                         preferred_family = tmpl->family;
 211                 }
 212
 213                 if (!NEXT_ARG_OK())
 214                         break;
 215
 216                 NEXT_ARG();
 217         }
 218         if (argc == *argcp)
 219                 missarg("TMPL");
 220
 221         *argcp = argc;
 222         *argvp = argv;
 223
 224         return 0;
 225 }
 226
 227 int xfrm_sctx_parse(char *ctxstr, char *s,
 228                            struct xfrm_user_sec_ctx *sctx)
 229 {
 230         int slen;
 231
 232         slen = strlen(s) + 1;
 233
 234         sctx->exttype = XFRMA_SEC_CTX;
 235         sctx->ctx_doi = 1;
 236         sctx->ctx_alg = 1;
 237         sctx->ctx_len = slen;
 238         sctx->len = sizeof(struct xfrm_user_sec_ctx) + slen;
 239         memcpy(ctxstr, s, slen);
 240
 241         return 0;
 242 }
 243
 244 static int xfrm_policy_modify(int cmd, unsigned int flags, int argc, char **argv)
 245 {
 246         struct rtnl_handle rth;
 247         struct {
 248                 struct nlmsghdr                 n;
 249                 struct xfrm_userpolicy_info     xpinfo;
 250                 char                            buf[RTA_BUF_SIZE];
 251         } req = {
 252                 .n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xpinfo)),
 253                 .n.nlmsg_flags = NLM_F_REQUEST | flags,
 254                 .n.nlmsg_type = cmd,
 255                 .xpinfo.sel.family = preferred_family,
 256                 .xpinfo.lft.soft_byte_limit = XFRM_INF,
 257                 .xpinfo.lft.hard_byte_limit = XFRM_INF,
 258                 .xpinfo.lft.soft_packet_limit = XFRM_INF,
 259                 .xpinfo.lft.hard_packet_limit = XFRM_INF,
 260         };
 261         char *dirp = NULL;
 262         char *selp = NULL;
 263         char *ptypep = NULL;
 264         char *sctxp = NULL;
 265         struct xfrm_userpolicy_type upt = {};
 266         char tmpls_buf[XFRM_TMPLS_BUF_SIZE] = {};
 267         int tmpls_len = 0;
 268         struct xfrm_mark mark = {0, 0};
 269         struct {
 270                 struct xfrm_user_sec_ctx sctx;
 271                 char    str[CTX_BUF_SIZE];
 272         } ctx = {};
 273
 274         while (argc > 0) {
 275                 if (strcmp(*argv, "dir") == 0) {
 276                         if (dirp)
 277                                 duparg("dir", *argv);
 278                         dirp = *argv;
 279
 280                         NEXT_ARG();
 281                         xfrm_policy_dir_parse(&req.xpinfo.dir, &argc, &argv);
 282                 } else if (strcmp(*argv, "ctx") == 0) {
 283                         char *context;
 284
 285                         if (sctxp)
 286                                 duparg("ctx", *argv);
 287                         sctxp = *argv;
 288                         NEXT_ARG();
 289                         context = *argv;
 290                         xfrm_sctx_parse((char *)&ctx.str, context, &ctx.sctx);
 291                 } else if (strcmp(*argv, "mark") == 0) {
 292                         xfrm_parse_mark(&mark, &argc, &argv);
 293                 } else if (strcmp(*argv, "index") == 0) {
 294                         NEXT_ARG();
 295                         if (get_u32(&req.xpinfo.index, *argv, 0))
 296                                 invarg("INDEX value is invalid", *argv);
 297                 } else if (strcmp(*argv, "ptype") == 0) {
 298                         if (ptypep)
 299                                 duparg("ptype", *argv);
 300                         ptypep = *argv;
 301
 302                         NEXT_ARG();
 303                         xfrm_policy_ptype_parse(&upt.type, &argc, &argv);
 304                 } else if (strcmp(*argv, "action") == 0) {
 305                         NEXT_ARG();
 306                         if (strcmp(*argv, "allow") == 0)
 307                                 req.xpinfo.action = XFRM_POLICY_ALLOW;
 308                         else if (strcmp(*argv, "block") == 0)
 309                                 req.xpinfo.action = XFRM_POLICY_BLOCK;
 310                         else
 311                                 invarg("ACTION value is invalid\n", *argv);
 312                 } else if (strcmp(*argv, "priority") == 0) {
 313                         NEXT_ARG();
 314                         if (get_u32(&req.xpinfo.priority, *argv, 0))
 315                                 invarg("PRIORITY value is invalid", *argv);
 316                 } else if (strcmp(*argv, "flag") == 0) {
 317                         NEXT_ARG();
 318                         xfrm_policy_flag_parse(&req.xpinfo.flags, &argc,
 319                                                &argv);
 320                 } else if (strcmp(*argv, "limit") == 0) {
 321                         NEXT_ARG();
 322                         xfrm_lifetime_cfg_parse(&req.xpinfo.lft, &argc, &argv);
 323                 } else if (strcmp(*argv, "tmpl") == 0) {
 324                         struct xfrm_user_tmpl *tmpl;
 325
 326                         if (tmpls_len + sizeof(*tmpl) > sizeof(tmpls_buf)) {
 327                                 fprintf(stderr, "Too many tmpls: buffer overflow\n");
 328                                 exit(1);
 329                         }
 330                         tmpl = (struct xfrm_user_tmpl *)((char *)tmpls_buf + tmpls_len);
 331
 332                         tmpl->family = preferred_family;
 333                         tmpl->aalgos = (~(__u32)0);
 334                         tmpl->ealgos = (~(__u32)0);
 335                         tmpl->calgos = (~(__u32)0);
 336
 337                         NEXT_ARG();
 338                         xfrm_tmpl_parse(tmpl, &argc, &argv);
 339
 340                         tmpls_len += sizeof(*tmpl);
 341                 } else {
 342                         if (selp)
 343                                 duparg("unknown", *argv);
 344                         selp = *argv;
 345
 346                         xfrm_selector_parse(&req.xpinfo.sel, &argc, &argv);
 347                         if (preferred_family == AF_UNSPEC)
 348                                 preferred_family = req.xpinfo.sel.family;
 349                 }
 350
 351                 argc--; argv++;
 352         }
 353
 354         if (!dirp) {
 355                 fprintf(stderr, "Not enough information: DIR is required.\n");
 356                 exit(1);
 357         }
 358
 359         if (ptypep) {
 360                 addattr_l(&req.n, sizeof(req), XFRMA_POLICY_TYPE,
 361                           (void *)&upt, sizeof(upt));
 362         }
 363
 364         if (tmpls_len > 0) {
 365                 addattr_l(&req.n, sizeof(req), XFRMA_TMPL,
 366                           (void *)tmpls_buf, tmpls_len);
 367         }
 368
 369         if (mark.m) {
 370                 int r = addattr_l(&req.n, sizeof(req.buf), XFRMA_MARK,
 371                                   (void *)&mark, sizeof(mark));
 372                 if (r < 0) {
 373                         fprintf(stderr, "%s: XFRMA_MARK failed\n", __func__);
 374                         exit(1);
 375                 }
 376         }
 377
 378         if (sctxp) {
 379                 addattr_l(&req.n, sizeof(req), XFRMA_SEC_CTX,
 380                           (void *)&ctx, ctx.sctx.len);
 381         }
 382
 383         if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
 384                 exit(1);
 385
 386         if (req.xpinfo.sel.family == AF_UNSPEC)
 387                 req.xpinfo.sel.family = AF_INET;
 388
 389         if (rtnl_talk(&rth, &req.n, NULL, 0) < 0)
 390                 exit(2);
 391
 392         rtnl_close(&rth);
 393
 394         return 0;
 395 }
 396
 397 static int xfrm_policy_filter_match(struct xfrm_userpolicy_info *xpinfo,
 398                                     __u8 ptype)
 399 {
 400         if (!filter.use)
 401                 return 1;
 402
 403         if ((xpinfo->dir^filter.xpinfo.dir)&filter.dir_mask)
 404                 return 0;
 405
 406         if ((ptype^filter.ptype)&filter.ptype_mask)
 407                 return 0;
 408
 409         if (filter.sel_src_mask) {
 410                 if (xfrm_addr_match(&xpinfo->sel.saddr, &filter.xpinfo.sel.saddr,
 411                                     filter.sel_src_mask))
 412                         return 0;
 413         }
 414
 415         if (filter.sel_dst_mask) {
 416                 if (xfrm_addr_match(&xpinfo->sel.daddr, &filter.xpinfo.sel.daddr,
 417                                     filter.sel_dst_mask))
 418                         return 0;
 419         }
 420
 421         if ((xpinfo->sel.ifindex^filter.xpinfo.sel.ifindex)&filter.sel_dev_mask)
 422                 return 0;
 423
 424         if ((xpinfo->sel.proto^filter.xpinfo.sel.proto)&filter.upspec_proto_mask)
 425                 return 0;
 426
 427         if (filter.upspec_sport_mask) {
 428                 if ((xpinfo->sel.sport^filter.xpinfo.sel.sport)&filter.upspec_sport_mask)
 429                         return 0;
 430         }
 431
 432         if (filter.upspec_dport_mask) {
 433                 if ((xpinfo->sel.dport^filter.xpinfo.sel.dport)&filter.upspec_dport_mask)
 434                         return 0;
 435         }
 436
 437         if ((xpinfo->index^filter.xpinfo.index)&filter.index_mask)
 438                 return 0;
 439
 440         if ((xpinfo->action^filter.xpinfo.action)&filter.action_mask)
 441                 return 0;
 442
 443         if ((xpinfo->priority^filter.xpinfo.priority)&filter.priority_mask)
 444                 return 0;
 445
 446         if (filter.policy_flags_mask)
 447                 if ((xpinfo->flags & filter.xpinfo.flags) == 0)
 448                         return 0;
 449
 450         return 1;
 451 }
 452
 453 int xfrm_policy_print(const struct sockaddr_nl *who, struct nlmsghdr *n,
 454                       void *arg)
 455 {
 456         struct rtattr *tb[XFRMA_MAX+1];
 457         struct rtattr *rta;
 458         struct xfrm_userpolicy_info *xpinfo = NULL;
 459         struct xfrm_user_polexpire *xpexp = NULL;
 460         struct xfrm_userpolicy_id *xpid = NULL;
 461         __u8 ptype = XFRM_POLICY_TYPE_MAIN;
 462         FILE *fp = (FILE *)arg;
 463         int len = n->nlmsg_len;
 464
 465         if (n->nlmsg_type != XFRM_MSG_NEWPOLICY &&
 466             n->nlmsg_type != XFRM_MSG_DELPOLICY &&
 467             n->nlmsg_type != XFRM_MSG_UPDPOLICY &&
 468             n->nlmsg_type != XFRM_MSG_POLEXPIRE) {
 469                 fprintf(stderr, "Not a policy: %08x %08x %08x\n",
 470                         n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
 471                 return 0;
 472         }
 473
 474         if (n->nlmsg_type == XFRM_MSG_DELPOLICY)  {
 475                 xpid = NLMSG_DATA(n);
 476                 len -= NLMSG_SPACE(sizeof(*xpid));
 477         } else if (n->nlmsg_type == XFRM_MSG_POLEXPIRE) {
 478                 xpexp = NLMSG_DATA(n);
 479                 xpinfo = &xpexp->pol;
 480                 len -= NLMSG_SPACE(sizeof(*xpexp));
 481         } else {
 482                 xpexp = NULL;
 483                 xpinfo = NLMSG_DATA(n);
 484                 len -= NLMSG_SPACE(sizeof(*xpinfo));
 485         }
 486
 487         if (len < 0) {
 488                 fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
 489                 return -1;
 490         }
 491
 492         if (n->nlmsg_type == XFRM_MSG_DELPOLICY)
 493                 rta = XFRMPID_RTA(xpid);
 494         else if (n->nlmsg_type == XFRM_MSG_POLEXPIRE)
 495                 rta = XFRMPEXP_RTA(xpexp);
 496         else
 497                 rta = XFRMP_RTA(xpinfo);
 498
 499         parse_rtattr(tb, XFRMA_MAX, rta, len);
 500
 501         if (tb[XFRMA_POLICY_TYPE]) {
 502                 struct xfrm_userpolicy_type *upt;
 503
 504                 if (RTA_PAYLOAD(tb[XFRMA_POLICY_TYPE]) < sizeof(*upt)) {
 505                         fprintf(stderr, "too short XFRMA_POLICY_TYPE len\n");
 506                         return -1;
 507                 }
 508                 upt = (struct xfrm_userpolicy_type *)RTA_DATA(tb[XFRMA_POLICY_TYPE]);
 509                 ptype = upt->type;
 510         }
 511
 512         if (xpinfo && !xfrm_policy_filter_match(xpinfo, ptype))
 513                 return 0;
 514
 515         if (n->nlmsg_type == XFRM_MSG_DELPOLICY)
 516                 fprintf(fp, "Deleted ");
 517         else if (n->nlmsg_type == XFRM_MSG_UPDPOLICY)
 518                 fprintf(fp, "Updated ");
 519         else if (n->nlmsg_type == XFRM_MSG_POLEXPIRE)
 520                 fprintf(fp, "Expired ");
 521
 522         if (n->nlmsg_type == XFRM_MSG_DELPOLICY) {
 523                 /* xfrm_policy_id_print(); */
 524                 if (!tb[XFRMA_POLICY]) {
 525                         fprintf(stderr, "Buggy XFRM_MSG_DELPOLICY: no XFRMA_POLICY\n");
 526                         return -1;
 527                 }
 528                 if (RTA_PAYLOAD(tb[XFRMA_POLICY]) < sizeof(*xpinfo)) {
 529                         fprintf(stderr, "Buggy XFRM_MSG_DELPOLICY: too short XFRMA_POLICY len\n");
 530                         return -1;
 531                 }
 532                 xpinfo = (struct xfrm_userpolicy_info *)RTA_DATA(tb[XFRMA_POLICY]);
 533         }
 534
 535         xfrm_policy_info_print(xpinfo, tb, fp, NULL, NULL);
 536
 537         if (n->nlmsg_type == XFRM_MSG_POLEXPIRE) {
 538                 fprintf(fp, "\t");
 539                 fprintf(fp, "hard %u", xpexp->hard);
 540                 fprintf(fp, "%s", _SL_);
 541         }
 542
 543         if (oneline)
 544                 fprintf(fp, "\n");
 545         fflush(fp);
 546
 547         return 0;
 548 }
 549
 550 static int xfrm_policy_get_or_delete(int argc, char **argv, int delete,
 551                                      void *res_nlbuf, size_t res_size)
 552 {
 553         struct rtnl_handle rth;
 554         struct {
 555                 struct nlmsghdr                 n;
 556                 struct xfrm_userpolicy_id       xpid;
 557                 char                            buf[RTA_BUF_SIZE];
 558         } req = {
 559                 .n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xpid)),
 560                 .n.nlmsg_flags = NLM_F_REQUEST,
 561                 .n.nlmsg_type = delete ? XFRM_MSG_DELPOLICY
 562                                        : XFRM_MSG_GETPOLICY,
 563         };
 564         char *dirp = NULL;
 565         char *selp = NULL;
 566         char *indexp = NULL;
 567         char *ptypep = NULL;
 568         char *sctxp = NULL;
 569         struct xfrm_userpolicy_type upt = {};
 570         struct xfrm_mark mark = {0, 0};
 571         struct {
 572                 struct xfrm_user_sec_ctx sctx;
 573                 char    str[CTX_BUF_SIZE];
 574         } ctx = {};
 575
 576         while (argc > 0) {
 577                 if (strcmp(*argv, "dir") == 0) {
 578                         if (dirp)
 579                                 duparg("dir", *argv);
 580                         dirp = *argv;
 581
 582                         NEXT_ARG();
 583                         xfrm_policy_dir_parse(&req.xpid.dir, &argc, &argv);
 584
 585                 } else if (strcmp(*argv, "ctx") == 0) {
 586                         char *context;
 587
 588                         if (sctxp)
 589                                 duparg("ctx", *argv);
 590                         sctxp = *argv;
 591                         NEXT_ARG();
 592                         context = *argv;
 593                         xfrm_sctx_parse((char *)&ctx.str, context, &ctx.sctx);
 594                 } else if (strcmp(*argv, "mark") == 0) {
 595                         xfrm_parse_mark(&mark, &argc, &argv);
 596                 } else if (strcmp(*argv, "index") == 0) {
 597                         if (indexp)
 598                                 duparg("index", *argv);
 599                         indexp = *argv;
 600
 601                         NEXT_ARG();
 602                         if (get_u32(&req.xpid.index, *argv, 0))
 603                                 invarg("INDEX value is invalid", *argv);
 604
 605                 } else if (strcmp(*argv, "ptype") == 0) {
 606                         if (ptypep)
 607                                 duparg("ptype", *argv);
 608                         ptypep = *argv;
 609
 610                         NEXT_ARG();
 611                         xfrm_policy_ptype_parse(&upt.type, &argc, &argv);
 612
 613                 } else {
 614                         if (selp)
 615                                 invarg("unknown", *argv);
 616                         selp = *argv;
 617
 618                         xfrm_selector_parse(&req.xpid.sel, &argc, &argv);
 619                         if (preferred_family == AF_UNSPEC)
 620                                 preferred_family = req.xpid.sel.family;
 621
 622                 }
 623
 624                 argc--; argv++;
 625         }
 626
 627         if (!dirp) {
 628                 fprintf(stderr, "Not enough information: DIR is required.\n");
 629                 exit(1);
 630         }
 631         if (ptypep) {
 632                 addattr_l(&req.n, sizeof(req), XFRMA_POLICY_TYPE,
 633                           (void *)&upt, sizeof(upt));
 634         }
 635         if (!selp && !indexp) {
 636                 fprintf(stderr, "Not enough information: either SELECTOR or INDEX is required.\n");
 637                 exit(1);
 638         }
 639         if (selp && indexp)
 640                 duparg2("SELECTOR", "INDEX");
 641
 642         if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
 643                 exit(1);
 644
 645         if (req.xpid.sel.family == AF_UNSPEC)
 646                 req.xpid.sel.family = AF_INET;
 647
 648         if (mark.m & mark.v) {
 649                 int r = addattr_l(&req.n, sizeof(req.buf), XFRMA_MARK,
 650                                   (void *)&mark, sizeof(mark));
 651                 if (r < 0) {
 652                         fprintf(stderr, "%s: XFRMA_MARK failed\n", __func__);
 653                         exit(1);
 654                 }
 655         }
 656
 657         if (sctxp) {
 658                 addattr_l(&req.n, sizeof(req), XFRMA_SEC_CTX,
 659                           (void *)&ctx, ctx.sctx.len);
 660         }
 661
 662         if (rtnl_talk(&rth, &req.n, res_nlbuf, res_size) < 0)
 663                 exit(2);
 664
 665         rtnl_close(&rth);
 666
 667         return 0;
 668 }
 669
 670 static int xfrm_policy_delete(int argc, char **argv)
 671 {
 672         return xfrm_policy_get_or_delete(argc, argv, 1, NULL, 0);
 673 }
 674
 675 static int xfrm_policy_get(int argc, char **argv)
 676 {
 677         char buf[NLMSG_BUF_SIZE] = {};
 678         struct nlmsghdr *n = (struct nlmsghdr *)buf;
 679
 680         xfrm_policy_get_or_delete(argc, argv, 0, n, sizeof(buf));
 681
 682         if (xfrm_policy_print(NULL, n, (void *)stdout) < 0) {
 683                 fprintf(stderr, "An error :-)\n");
 684                 exit(1);
 685         }
 686
 687         return 0;
 688 }
 689
 690 /*
 691  * With an existing policy of nlmsg, make new nlmsg for deleting the policy
 692  * and store it to buffer.
 693  */
 694 static int xfrm_policy_keep(const struct sockaddr_nl *who,
 695                             struct nlmsghdr *n,
 696                             void *arg)
 697 {
 698         struct xfrm_buffer *xb = (struct xfrm_buffer *)arg;
 699         struct rtnl_handle *rth = xb->rth;
 700         struct xfrm_userpolicy_info *xpinfo = NLMSG_DATA(n);
 701         int len = n->nlmsg_len;
 702         struct rtattr *tb[XFRMA_MAX+1];
 703         __u8 ptype = XFRM_POLICY_TYPE_MAIN;
 704         struct nlmsghdr *new_n;
 705         struct xfrm_userpolicy_id *xpid;
 706
 707         if (n->nlmsg_type != XFRM_MSG_NEWPOLICY) {
 708                 fprintf(stderr, "Not a policy: %08x %08x %08x\n",
 709                         n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
 710                 return 0;
 711         }
 712
 713         len -= NLMSG_LENGTH(sizeof(*xpinfo));
 714         if (len < 0) {
 715                 fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
 716                 return -1;
 717         }
 718
 719         parse_rtattr(tb, XFRMA_MAX, XFRMP_RTA(xpinfo), len);
 720
 721         if (tb[XFRMA_POLICY_TYPE]) {
 722                 struct xfrm_userpolicy_type *upt;
 723
 724                 if (RTA_PAYLOAD(tb[XFRMA_POLICY_TYPE]) < sizeof(*upt)) {
 725                         fprintf(stderr, "too short XFRMA_POLICY_TYPE len\n");
 726                         return -1;
 727                 }
 728                 upt = (struct xfrm_userpolicy_type *)RTA_DATA(tb[XFRMA_POLICY_TYPE]);
 729                 ptype = upt->type;
 730         }
 731
 732         if (!xfrm_policy_filter_match(xpinfo, ptype))
 733                 return 0;
 734
 735         if (xb->offset > xb->size) {
 736                 fprintf(stderr, "Policy buffer overflow\n");
 737                 return -1;
 738         }
 739
 740         new_n = (struct nlmsghdr *)(xb->buf + xb->offset);
 741         new_n->nlmsg_len = NLMSG_LENGTH(sizeof(*xpid));
 742         new_n->nlmsg_flags = NLM_F_REQUEST;
 743         new_n->nlmsg_type = XFRM_MSG_DELPOLICY;
 744         new_n->nlmsg_seq = ++rth->seq;
 745
 746         xpid = NLMSG_DATA(new_n);
 747         memcpy(&xpid->sel, &xpinfo->sel, sizeof(xpid->sel));
 748         xpid->dir = xpinfo->dir;
 749         xpid->index = xpinfo->index;
 750
 751         xb->offset += new_n->nlmsg_len;
 752         xb->nlmsg_count++;
 753
 754         return 0;
 755 }
 756
 757 static int xfrm_policy_list_or_deleteall(int argc, char **argv, int deleteall)
 758 {
 759         char *selp = NULL;
 760         struct rtnl_handle rth;
 761
 762         if (argc > 0)
 763                 filter.use = 1;
 764         filter.xpinfo.sel.family = preferred_family;
 765
 766         while (argc > 0) {
 767                 if (strcmp(*argv, "dir") == 0) {
 768                         NEXT_ARG();
 769                         xfrm_policy_dir_parse(&filter.xpinfo.dir, &argc, &argv);
 770
 771                         filter.dir_mask = XFRM_FILTER_MASK_FULL;
 772
 773                 } else if (strcmp(*argv, "index") == 0) {
 774                         NEXT_ARG();
 775                         if (get_u32(&filter.xpinfo.index, *argv, 0))
 776                                 invarg("INDEX value is invalid", *argv);
 777
 778                         filter.index_mask = XFRM_FILTER_MASK_FULL;
 779
 780                 } else if (strcmp(*argv, "ptype") == 0) {
 781                         NEXT_ARG();
 782                         xfrm_policy_ptype_parse(&filter.ptype, &argc, &argv);
 783
 784                         filter.ptype_mask = XFRM_FILTER_MASK_FULL;
 785
 786                 } else if (strcmp(*argv, "action") == 0) {
 787                         NEXT_ARG();
 788                         if (strcmp(*argv, "allow") == 0)
 789                                 filter.xpinfo.action = XFRM_POLICY_ALLOW;
 790                         else if (strcmp(*argv, "block") == 0)
 791                                 filter.xpinfo.action = XFRM_POLICY_BLOCK;
 792                         else
 793                                 invarg("ACTION value is invalid\n", *argv);
 794
 795                         filter.action_mask = XFRM_FILTER_MASK_FULL;
 796
 797                 } else if (strcmp(*argv, "priority") == 0) {
 798                         NEXT_ARG();
 799                         if (get_u32(&filter.xpinfo.priority, *argv, 0))
 800                                 invarg("PRIORITY value is invalid", *argv);
 801
 802                         filter.priority_mask = XFRM_FILTER_MASK_FULL;
 803
 804                 } else if (strcmp(*argv, "flag") == 0) {
 805                         NEXT_ARG();
 806                         xfrm_policy_flag_parse(&filter.xpinfo.flags, &argc,
 807                                                &argv);
 808
 809                         filter.policy_flags_mask = XFRM_FILTER_MASK_FULL;
 810
 811                 } else {
 812                         if (selp)
 813                                 invarg("unknown", *argv);
 814                         selp = *argv;
 815
 816                         xfrm_selector_parse(&filter.xpinfo.sel, &argc, &argv);
 817                         if (preferred_family == AF_UNSPEC)
 818                                 preferred_family = filter.xpinfo.sel.family;
 819
 820                 }
 821
 822                 argc--; argv++;
 823         }
 824
 825         if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
 826                 exit(1);
 827
 828         if (deleteall) {
 829                 struct xfrm_buffer xb;
 830                 char buf[NLMSG_DELETEALL_BUF_SIZE];
 831                 int i;
 832
 833                 xb.buf = buf;
 834                 xb.size = sizeof(buf);
 835                 xb.rth = &rth;
 836
 837                 for (i = 0; ; i++) {
 838                         struct {
 839                                 struct nlmsghdr n;
 840                                 char buf[NLMSG_BUF_SIZE];
 841                         } req = {
 842                                 .n.nlmsg_len = NLMSG_HDRLEN,
 843                                 .n.nlmsg_flags = NLM_F_DUMP | NLM_F_REQUEST,
 844                                 .n.nlmsg_type = XFRM_MSG_GETPOLICY,
 845                                 .n.nlmsg_seq = rth.dump = ++rth.seq,
 846                         };
 847
 848                         xb.offset = 0;
 849                         xb.nlmsg_count = 0;
 850
 851                         if (show_stats > 1)
 852                                 fprintf(stderr, "Delete-all round = %d\n", i);
 853
 854                         if (rtnl_send(&rth, (void *)&req, req.n.nlmsg_len) < 0) {
 855                                 perror("Cannot send dump request");
 856                                 exit(1);
 857                         }
 858
 859                         if (rtnl_dump_filter(&rth, xfrm_policy_keep, &xb) < 0) {
 860                                 fprintf(stderr, "Delete-all terminated\n");
 861                                 exit(1);
 862                         }
 863                         if (xb.nlmsg_count == 0) {
 864                                 if (show_stats > 1)
 865                                         fprintf(stderr, "Delete-all completed\n");
 866                                 break;
 867                         }
 868
 869                         if (rtnl_send_check(&rth, xb.buf, xb.offset) < 0) {
 870                                 perror("Failed to send delete-all request");
 871                                 exit(1);
 872                         }
 873                         if (show_stats > 1)
 874                                 fprintf(stderr, "Delete-all nlmsg count = %d\n", xb.nlmsg_count);
 875
 876                         xb.offset = 0;
 877                         xb.nlmsg_count = 0;
 878                 }
 879         } else {
 880                 struct {
 881                         struct nlmsghdr n;
 882                         char buf[NLMSG_BUF_SIZE];
 883                 } req = {
 884                         .n.nlmsg_len = NLMSG_HDRLEN,
 885                         .n.nlmsg_flags = NLM_F_DUMP | NLM_F_REQUEST,
 886                         .n.nlmsg_type = XFRM_MSG_GETPOLICY,
 887                         .n.nlmsg_seq = rth.dump = ++rth.seq,
 888                 };
 889
 890                 if (rtnl_send(&rth, (void *)&req, req.n.nlmsg_len) < 0) {
 891                         perror("Cannot send dump request");
 892                         exit(1);
 893                 }
 894
 895                 if (rtnl_dump_filter(&rth, xfrm_policy_print, stdout) < 0) {
 896                         fprintf(stderr, "Dump terminated\n");
 897                         exit(1);
 898                 }
 899         }
 900
 901         rtnl_close(&rth);
 902
 903         exit(0);
 904 }
 905
 906 static int print_spdinfo(struct nlmsghdr *n, void *arg)
 907 {
 908         FILE *fp = (FILE *)arg;
 909         __u32 *f = NLMSG_DATA(n);
 910         struct rtattr *tb[XFRMA_SPD_MAX+1];
 911         struct rtattr *rta;
 912
 913         int len = n->nlmsg_len;
 914
 915         len -= NLMSG_LENGTH(sizeof(__u32));
 916         if (len < 0) {
 917                 fprintf(stderr, "SPDinfo: Wrong len %d\n", len);
 918                 return -1;
 919         }
 920
 921         rta = XFRMSAPD_RTA(f);
 922         parse_rtattr(tb, XFRMA_SPD_MAX, rta, len);
 923
 924         fprintf(fp, "\t SPD");
 925         if (tb[XFRMA_SPD_INFO]) {
 926                 struct xfrmu_spdinfo *si;
 927
 928                 if (RTA_PAYLOAD(tb[XFRMA_SPD_INFO]) < sizeof(*si)) {
 929                         fprintf(stderr, "SPDinfo: Wrong len %d\n", len);
 930                         return -1;
 931                 }
 932                 si = RTA_DATA(tb[XFRMA_SPD_INFO]);
 933                 fprintf(fp, " IN  %d", si->incnt);
 934                 fprintf(fp, " OUT %d", si->outcnt);
 935                 fprintf(fp, " FWD %d", si->fwdcnt);
 936
 937                 if (show_stats) {
 938                         fprintf(fp, " (Sock:");
 939                         fprintf(fp, " IN %d", si->inscnt);
 940                         fprintf(fp, " OUT %d", si->outscnt);
 941                         fprintf(fp, " FWD %d", si->fwdscnt);
 942                         fprintf(fp, ")");
 943                 }
 944
 945                 fprintf(fp, "%s", _SL_);
 946         }
 947         if (show_stats > 1) {
 948                 struct xfrmu_spdhinfo *sh;
 949
 950                 if (tb[XFRMA_SPD_HINFO]) {
 951                         if (RTA_PAYLOAD(tb[XFRMA_SPD_HINFO]) < sizeof(*sh)) {
 952                                 fprintf(stderr, "SPDinfo: Wrong len %d\n", len);
 953                                 return -1;
 954                         }
 955                         sh = RTA_DATA(tb[XFRMA_SPD_HINFO]);
 956                         fprintf(fp, "\t SPD buckets:");
 957                         fprintf(fp, " count %d", sh->spdhcnt);
 958                         fprintf(fp, " Max %d", sh->spdhmcnt);
 959                         fprintf(fp, "%s", _SL_);
 960                 }
 961                 if (tb[XFRMA_SPD_IPV4_HTHRESH]) {
 962                         struct xfrmu_spdhthresh *th;
 963
 964                         if (RTA_PAYLOAD(tb[XFRMA_SPD_IPV4_HTHRESH]) < sizeof(*th)) {
 965                                 fprintf(stderr, "SPDinfo: Wrong len %d\n", len);
 966                                 return -1;
 967                         }
 968                         th = RTA_DATA(tb[XFRMA_SPD_IPV4_HTHRESH]);
 969                         fprintf(fp, "\t SPD IPv4 thresholds:");
 970                         fprintf(fp, " local %d", th->lbits);
 971                         fprintf(fp, " remote %d", th->rbits);
 972                         fprintf(fp, "%s", _SL_);
 973
 974                 }
 975                 if (tb[XFRMA_SPD_IPV6_HTHRESH]) {
 976                         struct xfrmu_spdhthresh *th;
 977
 978                         if (RTA_PAYLOAD(tb[XFRMA_SPD_IPV6_HTHRESH]) < sizeof(*th)) {
 979                                 fprintf(stderr, "SPDinfo: Wrong len %d\n", len);
 980                                 return -1;
 981                         }
 982                         th = RTA_DATA(tb[XFRMA_SPD_IPV6_HTHRESH]);
 983                         fprintf(fp, "\t SPD IPv6 thresholds:");
 984                         fprintf(fp, " local %d", th->lbits);
 985                         fprintf(fp, " remote %d", th->rbits);
 986                         fprintf(fp, "%s", _SL_);
 987                 }
 988         }
 989
 990         if (oneline)
 991                 fprintf(fp, "\n");
 992
 993         return 0;
 994 }
 995
 996 static int xfrm_spd_setinfo(int argc, char **argv)
 997 {
 998         struct rtnl_handle rth;
 999         struct {
1000                 struct nlmsghdr                 n;
1001                 __u32                           flags;
1002                 char                            buf[RTA_BUF_SIZE];
1003         } req = {
1004                 .n.nlmsg_len = NLMSG_LENGTH(sizeof(__u32)),
1005                 .n.nlmsg_flags = NLM_F_REQUEST,
1006                 .n.nlmsg_type = XFRM_MSG_NEWSPDINFO,
1007                 .flags = 0XFFFFFFFF,
1008         };
1009
1010         char *thr4 = NULL;
1011         char *thr6 = NULL;
1012
1013         while (argc > 0) {
1014                 if (strcmp(*argv, "hthresh4") == 0) {
1015                         struct xfrmu_spdhthresh thr;
1016
1017                         if (thr4)
1018                                 duparg("hthresh4", *argv);
1019                         thr4 = *argv;
1020                         NEXT_ARG();
1021                         if (get_u8(&thr.lbits, *argv, 0) || thr.lbits > 32)
1022                                 invarg("hthresh4 LBITS value is invalid", *argv);
1023                         NEXT_ARG();
1024                         if (get_u8(&thr.rbits, *argv, 0) || thr.rbits > 32)
1025                                 invarg("hthresh4 RBITS value is invalid", *argv);
1026
1027                         addattr_l(&req.n, sizeof(req), XFRMA_SPD_IPV4_HTHRESH,
1028                                   (void *)&thr, sizeof(thr));
1029                 } else if (strcmp(*argv, "hthresh6") == 0) {
1030                         struct xfrmu_spdhthresh thr;
1031
1032                         if (thr6)
1033                                 duparg("hthresh6", *argv);
1034                         thr6 = *argv;
1035                         NEXT_ARG();
1036                         if (get_u8(&thr.lbits, *argv, 0) || thr.lbits > 128)
1037                                 invarg("hthresh6 LBITS value is invalid", *argv);
1038                         NEXT_ARG();
1039                         if (get_u8(&thr.rbits, *argv, 0) || thr.rbits > 128)
1040                                 invarg("hthresh6 RBITS value is invalid", *argv);
1041
1042                         addattr_l(&req.n, sizeof(req), XFRMA_SPD_IPV6_HTHRESH,
1043                                   (void *)&thr, sizeof(thr));
1044                 } else {
1045                         invarg("unknown", *argv);
1046                 }
1047
1048                 argc--; argv++;
1049         }
1050
1051         if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
1052                 exit(1);
1053
1054         if (rtnl_talk(&rth, &req.n, NULL, 0) < 0)
1055                 exit(2);
1056
1057         rtnl_close(&rth);
1058
1059         return 0;
1060 }
1061
1062 static int xfrm_spd_getinfo(int argc, char **argv)
1063 {
1064         struct rtnl_handle rth;
1065         struct {
1066                 struct nlmsghdr                 n;
1067                 __u32                           flags;
1068                 char                            ans[128];
1069         } req = {
1070                 .n.nlmsg_len = NLMSG_LENGTH(sizeof(__u32)),
1071                 .n.nlmsg_flags = NLM_F_REQUEST,
1072                 .n.nlmsg_type = XFRM_MSG_GETSPDINFO,
1073                 .flags = 0XFFFFFFFF,
1074         };
1075
1076         if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
1077                 exit(1);
1078
1079         if (rtnl_talk(&rth, &req.n, &req.n, sizeof(req)) < 0)
1080                 exit(2);
1081
1082         print_spdinfo(&req.n, (void *)stdout);
1083
1084         rtnl_close(&rth);
1085
1086         return 0;
1087 }
1088
1089 static int xfrm_policy_flush(int argc, char **argv)
1090 {
1091         struct rtnl_handle rth;
1092         struct {
1093                 struct nlmsghdr n;
1094                 char            buf[RTA_BUF_SIZE];
1095         } req = {
1096                 .n.nlmsg_len = NLMSG_LENGTH(0), /* nlmsg data is nothing */
1097                 .n.nlmsg_flags = NLM_F_REQUEST,
1098                 .n.nlmsg_type = XFRM_MSG_FLUSHPOLICY,
1099         };
1100         char *ptypep = NULL;
1101         struct xfrm_userpolicy_type upt = {};
1102
1103         while (argc > 0) {
1104                 if (strcmp(*argv, "ptype") == 0) {
1105                         if (ptypep)
1106                                 duparg("ptype", *argv);
1107                         ptypep = *argv;
1108
1109                         NEXT_ARG();
1110                         xfrm_policy_ptype_parse(&upt.type, &argc, &argv);
1111                 } else
1112                         invarg("unknown", *argv);
1113
1114                 argc--; argv++;
1115         }
1116
1117         if (ptypep) {
1118                 addattr_l(&req.n, sizeof(req), XFRMA_POLICY_TYPE,
1119                           (void *)&upt, sizeof(upt));
1120         }
1121
1122         if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
1123                 exit(1);
1124
1125         if (show_stats > 1)
1126                 fprintf(stderr, "Flush policy\n");
1127
1128         if (rtnl_talk(&rth, &req.n, NULL, 0) < 0)
1129                 exit(2);
1130
1131         rtnl_close(&rth);
1132
1133         return 0;
1134 }
1135
1136 int do_xfrm_policy(int argc, char **argv)
1137 {
1138         if (argc < 1)
1139                 return xfrm_policy_list_or_deleteall(0, NULL, 0);
1140
1141         if (matches(*argv, "add") == 0)
1142                 return xfrm_policy_modify(XFRM_MSG_NEWPOLICY, 0,
1143                                           argc-1, argv+1);
1144         if (matches(*argv, "update") == 0)
1145                 return xfrm_policy_modify(XFRM_MSG_UPDPOLICY, 0,
1146                                           argc-1, argv+1);
1147         if (matches(*argv, "delete") == 0)
1148                 return xfrm_policy_delete(argc-1, argv+1);
1149         if (matches(*argv, "deleteall") == 0 || matches(*argv, "delall") == 0)
1150                 return xfrm_policy_list_or_deleteall(argc-1, argv+1, 1);
1151         if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
1152             || matches(*argv, "lst") == 0)
1153                 return xfrm_policy_list_or_deleteall(argc-1, argv+1, 0);
1154         if (matches(*argv, "get") == 0)
1155                 return xfrm_policy_get(argc-1, argv+1);
1156         if (matches(*argv, "flush") == 0)
1157                 return xfrm_policy_flush(argc-1, argv+1);
1158         if (matches(*argv, "count") == 0)
1159                 return xfrm_spd_getinfo(argc, argv);
1160         if (matches(*argv, "set") == 0)
1161                 return xfrm_spd_setinfo(argc-1, argv+1);
1162         if (matches(*argv, "help") == 0)
1163                 usage();
1164         fprintf(stderr, "Command \"%s\" is unknown, try \"ip xfrm policy help\".\n", *argv);
1165         exit(-1);
1166 }