lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame^] | 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/netlink.h> |
| 33 | #include <linux/xfrm.h> |
| 34 | #include "utils.h" |
| 35 | #include "xfrm.h" |
| 36 | #include "ip_common.h" |
| 37 | |
| 38 | //#define NLMSG_DELETEALL_BUF_SIZE (4096-512) |
| 39 | #define NLMSG_DELETEALL_BUF_SIZE 8192 |
| 40 | |
| 41 | /* |
| 42 | * Receiving buffer defines: |
| 43 | * nlmsg |
| 44 | * data = struct xfrm_userpolicy_info |
| 45 | * rtattr |
| 46 | * data = struct xfrm_user_tmpl[] |
| 47 | */ |
| 48 | #define NLMSG_BUF_SIZE 4096 |
| 49 | #define RTA_BUF_SIZE 2048 |
| 50 | #define XFRM_TMPLS_BUF_SIZE 1024 |
| 51 | #define CTX_BUF_SIZE 256 |
| 52 | |
| 53 | static void usage(void) __attribute__((noreturn)); |
| 54 | |
| 55 | static void usage(void) |
| 56 | { |
| 57 | fprintf(stderr, "Usage: ip xfrm policy { add | update } SELECTOR dir DIR [ ctx CTX ]\n"); |
| 58 | fprintf(stderr, " [ mark MARK [ mask MASK ] ] [ index INDEX ] [ ptype PTYPE ]\n"); |
| 59 | fprintf(stderr, " [ action ACTION ] [ priority PRIORITY ] [ flag FLAG-LIST ]\n"); |
| 60 | fprintf(stderr, " [ LIMIT-LIST ] [ TMPL-LIST ]\n"); |
| 61 | fprintf(stderr, "Usage: ip xfrm policy { delete | get } { SELECTOR | index INDEX } dir DIR\n"); |
| 62 | fprintf(stderr, " [ ctx CTX ] [ mark MARK [ mask MASK ] ] [ ptype PTYPE ]\n"); |
| 63 | fprintf(stderr, "Usage: ip xfrm policy { deleteall | list } [ SELECTOR ] [ dir DIR ]\n"); |
| 64 | fprintf(stderr, " [ index INDEX ] [ ptype PTYPE ] [ action ACTION ] [ priority PRIORITY ]\n"); |
| 65 | fprintf(stderr, " [ flag FLAG-LIST ]\n"); |
| 66 | fprintf(stderr, "Usage: ip xfrm policy flush [ ptype PTYPE ]\n"); |
| 67 | fprintf(stderr, "Usage: ip xfrm count\n"); |
| 68 | fprintf(stderr, "SELECTOR := [ src ADDR[/PLEN] ] [ dst ADDR[/PLEN] ] [ dev DEV ] [ UPSPEC ]\n"); |
| 69 | fprintf(stderr, "UPSPEC := proto { { "); |
| 70 | fprintf(stderr, "%s | ", strxf_proto(IPPROTO_TCP)); |
| 71 | fprintf(stderr, "%s | ", strxf_proto(IPPROTO_UDP)); |
| 72 | fprintf(stderr, "%s | ", strxf_proto(IPPROTO_SCTP)); |
| 73 | fprintf(stderr, "%s", strxf_proto(IPPROTO_DCCP)); |
| 74 | fprintf(stderr, " } [ sport PORT ] [ dport PORT ] |\n"); |
| 75 | fprintf(stderr, " { "); |
| 76 | fprintf(stderr, "%s | ", strxf_proto(IPPROTO_ICMP)); |
| 77 | fprintf(stderr, "%s | ", strxf_proto(IPPROTO_ICMPV6)); |
| 78 | fprintf(stderr, "%s", strxf_proto(IPPROTO_MH)); |
| 79 | fprintf(stderr, " } [ type NUMBER ] [ code NUMBER ] |\n"); |
| 80 | fprintf(stderr, " %s", strxf_proto(IPPROTO_GRE)); |
| 81 | fprintf(stderr, " [ key { DOTTED-QUAD | NUMBER } ] | PROTO }\n"); |
| 82 | fprintf(stderr, "DIR := in | out | fwd\n"); |
| 83 | fprintf(stderr, "PTYPE := main | sub\n"); |
| 84 | fprintf(stderr, "ACTION := allow | block\n"); |
| 85 | fprintf(stderr, "FLAG-LIST := [ FLAG-LIST ] FLAG\n"); |
| 86 | fprintf(stderr, "FLAG := localok | icmp\n"); |
| 87 | fprintf(stderr, "LIMIT-LIST := [ LIMIT-LIST ] limit LIMIT\n"); |
| 88 | fprintf(stderr, "LIMIT := { time-soft | time-hard | time-use-soft | time-use-hard } SECONDS |\n"); |
| 89 | fprintf(stderr, " { byte-soft | byte-hard } SIZE | { packet-soft | packet-hard } COUNT\n"); |
| 90 | fprintf(stderr, "TMPL-LIST := [ TMPL-LIST ] tmpl TMPL\n"); |
| 91 | fprintf(stderr, "TMPL := ID [ mode MODE ] [ reqid REQID ] [ level LEVEL ]\n"); |
| 92 | fprintf(stderr, "ID := [ src ADDR ] [ dst ADDR ] [ proto XFRM-PROTO ] [ spi SPI ]\n"); |
| 93 | fprintf(stderr, "XFRM-PROTO := "); |
| 94 | fprintf(stderr, "%s | ", strxf_xfrmproto(IPPROTO_ESP)); |
| 95 | fprintf(stderr, "%s | ", strxf_xfrmproto(IPPROTO_AH)); |
| 96 | fprintf(stderr, "%s | ", strxf_xfrmproto(IPPROTO_COMP)); |
| 97 | fprintf(stderr, "%s | ", strxf_xfrmproto(IPPROTO_ROUTING)); |
| 98 | fprintf(stderr, "%s\n", strxf_xfrmproto(IPPROTO_DSTOPTS)); |
| 99 | fprintf(stderr, "MODE := transport | tunnel | ro | in_trigger | beet\n"); |
| 100 | fprintf(stderr, "LEVEL := required | use\n"); |
| 101 | |
| 102 | exit(-1); |
| 103 | } |
| 104 | |
| 105 | static int xfrm_policy_dir_parse(__u8 *dir, int *argcp, char ***argvp) |
| 106 | { |
| 107 | int argc = *argcp; |
| 108 | char **argv = *argvp; |
| 109 | |
| 110 | if (strcmp(*argv, "in") == 0) |
| 111 | *dir = XFRM_POLICY_IN; |
| 112 | else if (strcmp(*argv, "out") == 0) |
| 113 | *dir = XFRM_POLICY_OUT; |
| 114 | else if (strcmp(*argv, "fwd") == 0) |
| 115 | *dir = XFRM_POLICY_FWD; |
| 116 | else |
| 117 | invarg("\"DIR\" is invalid", *argv); |
| 118 | |
| 119 | *argcp = argc; |
| 120 | *argvp = argv; |
| 121 | |
| 122 | return 0; |
| 123 | } |
| 124 | |
| 125 | static int xfrm_policy_ptype_parse(__u8 *ptype, int *argcp, char ***argvp) |
| 126 | { |
| 127 | int argc = *argcp; |
| 128 | char **argv = *argvp; |
| 129 | |
| 130 | if (strcmp(*argv, "main") == 0) |
| 131 | *ptype = XFRM_POLICY_TYPE_MAIN; |
| 132 | else if (strcmp(*argv, "sub") == 0) |
| 133 | *ptype = XFRM_POLICY_TYPE_SUB; |
| 134 | else |
| 135 | invarg("\"PTYPE\" is invalid", *argv); |
| 136 | |
| 137 | *argcp = argc; |
| 138 | *argvp = argv; |
| 139 | |
| 140 | return 0; |
| 141 | } |
| 142 | |
| 143 | static int xfrm_policy_flag_parse(__u8 *flags, int *argcp, char ***argvp) |
| 144 | { |
| 145 | int argc = *argcp; |
| 146 | char **argv = *argvp; |
| 147 | int len = strlen(*argv); |
| 148 | |
| 149 | if (len > 2 && strncmp(*argv, "0x", 2) == 0) { |
| 150 | __u8 val = 0; |
| 151 | |
| 152 | if (get_u8(&val, *argv, 16)) |
| 153 | invarg("\"FLAG\" is invalid", *argv); |
| 154 | *flags = val; |
| 155 | } else { |
| 156 | while (1) { |
| 157 | if (strcmp(*argv, "localok") == 0) |
| 158 | *flags |= XFRM_POLICY_LOCALOK; |
| 159 | else if (strcmp(*argv, "icmp") == 0) |
| 160 | *flags |= XFRM_POLICY_ICMP; |
| 161 | else { |
| 162 | PREV_ARG(); /* back track */ |
| 163 | break; |
| 164 | } |
| 165 | |
| 166 | if (!NEXT_ARG_OK()) |
| 167 | break; |
| 168 | NEXT_ARG(); |
| 169 | } |
| 170 | } |
| 171 | |
| 172 | *argcp = argc; |
| 173 | *argvp = argv; |
| 174 | |
| 175 | return 0; |
| 176 | } |
| 177 | |
| 178 | static int xfrm_tmpl_parse(struct xfrm_user_tmpl *tmpl, |
| 179 | int *argcp, char ***argvp) |
| 180 | { |
| 181 | int argc = *argcp; |
| 182 | char **argv = *argvp; |
| 183 | char *idp = NULL; |
| 184 | |
| 185 | while (1) { |
| 186 | if (strcmp(*argv, "mode") == 0) { |
| 187 | NEXT_ARG(); |
| 188 | xfrm_mode_parse(&tmpl->mode, &argc, &argv); |
| 189 | } else if (strcmp(*argv, "reqid") == 0) { |
| 190 | NEXT_ARG(); |
| 191 | xfrm_reqid_parse(&tmpl->reqid, &argc, &argv); |
| 192 | } else if (strcmp(*argv, "level") == 0) { |
| 193 | NEXT_ARG(); |
| 194 | |
| 195 | if (strcmp(*argv, "required") == 0) |
| 196 | tmpl->optional = 0; |
| 197 | else if (strcmp(*argv, "use") == 0) |
| 198 | tmpl->optional = 1; |
| 199 | else |
| 200 | invarg("\"LEVEL\" is invalid\n", *argv); |
| 201 | |
| 202 | } else { |
| 203 | if (idp) { |
| 204 | PREV_ARG(); /* back track */ |
| 205 | break; |
| 206 | } |
| 207 | idp = *argv; |
| 208 | preferred_family = AF_UNSPEC; |
| 209 | xfrm_id_parse(&tmpl->saddr, &tmpl->id, &tmpl->family, |
| 210 | 0, &argc, &argv); |
| 211 | preferred_family = tmpl->family; |
| 212 | } |
| 213 | |
| 214 | if (!NEXT_ARG_OK()) |
| 215 | break; |
| 216 | |
| 217 | NEXT_ARG(); |
| 218 | } |
| 219 | if (argc == *argcp) |
| 220 | missarg("TMPL"); |
| 221 | |
| 222 | *argcp = argc; |
| 223 | *argvp = argv; |
| 224 | |
| 225 | return 0; |
| 226 | } |
| 227 | |
| 228 | int xfrm_sctx_parse(char *ctxstr, char *s, |
| 229 | struct xfrm_user_sec_ctx *sctx) |
| 230 | { |
| 231 | int slen; |
| 232 | |
| 233 | slen = strlen(s) + 1; |
| 234 | |
| 235 | sctx->exttype = XFRMA_SEC_CTX; |
| 236 | sctx->ctx_doi = 1; |
| 237 | sctx->ctx_alg = 1; |
| 238 | sctx->ctx_len = slen; |
| 239 | sctx->len = sizeof(struct xfrm_user_sec_ctx) + slen; |
| 240 | memcpy(ctxstr, s, slen); |
| 241 | |
| 242 | return 0; |
| 243 | } |
| 244 | |
| 245 | static int xfrm_policy_modify(int cmd, unsigned flags, int argc, char **argv) |
| 246 | { |
| 247 | struct rtnl_handle rth; |
| 248 | struct { |
| 249 | struct nlmsghdr n; |
| 250 | struct xfrm_userpolicy_info xpinfo; |
| 251 | char buf[RTA_BUF_SIZE]; |
| 252 | } req; |
| 253 | char *dirp = NULL; |
| 254 | char *selp = NULL; |
| 255 | char *ptypep = NULL; |
| 256 | char *sctxp = NULL; |
| 257 | struct xfrm_userpolicy_type upt; |
| 258 | char tmpls_buf[XFRM_TMPLS_BUF_SIZE]; |
| 259 | int tmpls_len = 0; |
| 260 | struct xfrm_mark mark = {0, 0}; |
| 261 | struct { |
| 262 | struct xfrm_user_sec_ctx sctx; |
| 263 | char str[CTX_BUF_SIZE]; |
| 264 | } ctx; |
| 265 | |
| 266 | memset(&req, 0, sizeof(req)); |
| 267 | memset(&upt, 0, sizeof(upt)); |
| 268 | memset(&tmpls_buf, 0, sizeof(tmpls_buf)); |
| 269 | memset(&ctx, 0, sizeof(ctx)); |
| 270 | |
| 271 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xpinfo)); |
| 272 | req.n.nlmsg_flags = NLM_F_REQUEST|flags; |
| 273 | req.n.nlmsg_type = cmd; |
| 274 | req.xpinfo.sel.family = preferred_family; |
| 275 | |
| 276 | req.xpinfo.lft.soft_byte_limit = XFRM_INF; |
| 277 | req.xpinfo.lft.hard_byte_limit = XFRM_INF; |
| 278 | req.xpinfo.lft.soft_packet_limit = XFRM_INF; |
| 279 | req.xpinfo.lft.hard_packet_limit = XFRM_INF; |
| 280 | |
| 281 | while (argc > 0) { |
| 282 | if (strcmp(*argv, "dir") == 0) { |
| 283 | if (dirp) |
| 284 | duparg("dir", *argv); |
| 285 | dirp = *argv; |
| 286 | |
| 287 | NEXT_ARG(); |
| 288 | xfrm_policy_dir_parse(&req.xpinfo.dir, &argc, &argv); |
| 289 | } else if (strcmp(*argv, "ctx") == 0) { |
| 290 | char *context; |
| 291 | |
| 292 | if (sctxp) |
| 293 | duparg("ctx", *argv); |
| 294 | sctxp = *argv; |
| 295 | NEXT_ARG(); |
| 296 | context = *argv; |
| 297 | xfrm_sctx_parse((char *)&ctx.str, context, &ctx.sctx); |
| 298 | } else if (strcmp(*argv, "mark") == 0) { |
| 299 | xfrm_parse_mark(&mark, &argc, &argv); |
| 300 | } else if (strcmp(*argv, "index") == 0) { |
| 301 | NEXT_ARG(); |
| 302 | if (get_u32(&req.xpinfo.index, *argv, 0)) |
| 303 | invarg("\"INDEX\" is invalid", *argv); |
| 304 | } else if (strcmp(*argv, "ptype") == 0) { |
| 305 | if (ptypep) |
| 306 | duparg("ptype", *argv); |
| 307 | ptypep = *argv; |
| 308 | |
| 309 | NEXT_ARG(); |
| 310 | xfrm_policy_ptype_parse(&upt.type, &argc, &argv); |
| 311 | } else if (strcmp(*argv, "action") == 0) { |
| 312 | NEXT_ARG(); |
| 313 | if (strcmp(*argv, "allow") == 0) |
| 314 | req.xpinfo.action = XFRM_POLICY_ALLOW; |
| 315 | else if (strcmp(*argv, "block") == 0) |
| 316 | req.xpinfo.action = XFRM_POLICY_BLOCK; |
| 317 | else |
| 318 | invarg("\"action\" value is invalid\n", *argv); |
| 319 | } else if (strcmp(*argv, "priority") == 0) { |
| 320 | NEXT_ARG(); |
| 321 | if (get_u32(&req.xpinfo.priority, *argv, 0)) |
| 322 | invarg("\"PRIORITY\" is invalid", *argv); |
| 323 | } else if (strcmp(*argv, "flag") == 0) { |
| 324 | NEXT_ARG(); |
| 325 | xfrm_policy_flag_parse(&req.xpinfo.flags, &argc, |
| 326 | &argv); |
| 327 | } else if (strcmp(*argv, "limit") == 0) { |
| 328 | NEXT_ARG(); |
| 329 | xfrm_lifetime_cfg_parse(&req.xpinfo.lft, &argc, &argv); |
| 330 | } else if (strcmp(*argv, "tmpl") == 0) { |
| 331 | struct xfrm_user_tmpl *tmpl; |
| 332 | |
| 333 | if (tmpls_len + sizeof(*tmpl) > sizeof(tmpls_buf)) { |
| 334 | fprintf(stderr, "Too many tmpls: buffer overflow\n"); |
| 335 | exit(1); |
| 336 | } |
| 337 | tmpl = (struct xfrm_user_tmpl *)((char *)tmpls_buf + tmpls_len); |
| 338 | |
| 339 | tmpl->family = preferred_family; |
| 340 | tmpl->aalgos = (~(__u32)0); |
| 341 | tmpl->ealgos = (~(__u32)0); |
| 342 | tmpl->calgos = (~(__u32)0); |
| 343 | |
| 344 | NEXT_ARG(); |
| 345 | xfrm_tmpl_parse(tmpl, &argc, &argv); |
| 346 | |
| 347 | tmpls_len += sizeof(*tmpl); |
| 348 | } else { |
| 349 | if (selp) |
| 350 | duparg("unknown", *argv); |
| 351 | selp = *argv; |
| 352 | |
| 353 | xfrm_selector_parse(&req.xpinfo.sel, &argc, &argv); |
| 354 | if (preferred_family == AF_UNSPEC) |
| 355 | preferred_family = req.xpinfo.sel.family; |
| 356 | } |
| 357 | |
| 358 | argc--; argv++; |
| 359 | } |
| 360 | |
| 361 | if (!dirp) { |
| 362 | fprintf(stderr, "Not enough information: \"DIR\" is required.\n"); |
| 363 | exit(1); |
| 364 | } |
| 365 | |
| 366 | if (ptypep) { |
| 367 | addattr_l(&req.n, sizeof(req), XFRMA_POLICY_TYPE, |
| 368 | (void *)&upt, sizeof(upt)); |
| 369 | } |
| 370 | |
| 371 | if (tmpls_len > 0) { |
| 372 | addattr_l(&req.n, sizeof(req), XFRMA_TMPL, |
| 373 | (void *)tmpls_buf, tmpls_len); |
| 374 | } |
| 375 | |
| 376 | if (mark.m & mark.v) { |
| 377 | int r = addattr_l(&req.n, sizeof(req.buf), XFRMA_MARK, |
| 378 | (void *)&mark, sizeof(mark)); |
| 379 | if (r < 0) { |
| 380 | fprintf(stderr, "%s: XFRMA_MARK failed\n",__func__); |
| 381 | exit(1); |
| 382 | } |
| 383 | } |
| 384 | |
| 385 | if (sctxp) { |
| 386 | addattr_l(&req.n, sizeof(req), XFRMA_SEC_CTX, |
| 387 | (void *)&ctx, ctx.sctx.len); |
| 388 | } |
| 389 | |
| 390 | if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0) |
| 391 | exit(1); |
| 392 | |
| 393 | if (req.xpinfo.sel.family == AF_UNSPEC) |
| 394 | req.xpinfo.sel.family = AF_INET; |
| 395 | |
| 396 | if (rtnl_talk(&rth, &req.n, 0, 0, NULL) < 0) |
| 397 | exit(2); |
| 398 | |
| 399 | rtnl_close(&rth); |
| 400 | |
| 401 | return 0; |
| 402 | } |
| 403 | |
| 404 | static int xfrm_policy_filter_match(struct xfrm_userpolicy_info *xpinfo, |
| 405 | __u8 ptype) |
| 406 | { |
| 407 | if (!filter.use) |
| 408 | return 1; |
| 409 | |
| 410 | if ((xpinfo->dir^filter.xpinfo.dir)&filter.dir_mask) |
| 411 | return 0; |
| 412 | |
| 413 | if ((ptype^filter.ptype)&filter.ptype_mask) |
| 414 | return 0; |
| 415 | |
| 416 | if (filter.sel_src_mask) { |
| 417 | if (xfrm_addr_match(&xpinfo->sel.saddr, &filter.xpinfo.sel.saddr, |
| 418 | filter.sel_src_mask)) |
| 419 | return 0; |
| 420 | } |
| 421 | |
| 422 | if (filter.sel_dst_mask) { |
| 423 | if (xfrm_addr_match(&xpinfo->sel.daddr, &filter.xpinfo.sel.daddr, |
| 424 | filter.sel_dst_mask)) |
| 425 | return 0; |
| 426 | } |
| 427 | |
| 428 | if ((xpinfo->sel.ifindex^filter.xpinfo.sel.ifindex)&filter.sel_dev_mask) |
| 429 | return 0; |
| 430 | |
| 431 | if ((xpinfo->sel.proto^filter.xpinfo.sel.proto)&filter.upspec_proto_mask) |
| 432 | return 0; |
| 433 | |
| 434 | if (filter.upspec_sport_mask) { |
| 435 | if ((xpinfo->sel.sport^filter.xpinfo.sel.sport)&filter.upspec_sport_mask) |
| 436 | return 0; |
| 437 | } |
| 438 | |
| 439 | if (filter.upspec_dport_mask) { |
| 440 | if ((xpinfo->sel.dport^filter.xpinfo.sel.dport)&filter.upspec_dport_mask) |
| 441 | return 0; |
| 442 | } |
| 443 | |
| 444 | if ((xpinfo->index^filter.xpinfo.index)&filter.index_mask) |
| 445 | return 0; |
| 446 | |
| 447 | if ((xpinfo->action^filter.xpinfo.action)&filter.action_mask) |
| 448 | return 0; |
| 449 | |
| 450 | if ((xpinfo->priority^filter.xpinfo.priority)&filter.priority_mask) |
| 451 | return 0; |
| 452 | |
| 453 | if (filter.policy_flags_mask) |
| 454 | if ((xpinfo->flags & filter.xpinfo.flags) == 0) |
| 455 | return 0; |
| 456 | |
| 457 | return 1; |
| 458 | } |
| 459 | |
| 460 | int xfrm_policy_print(const struct sockaddr_nl *who, struct nlmsghdr *n, |
| 461 | void *arg) |
| 462 | { |
| 463 | struct rtattr * tb[XFRMA_MAX+1]; |
| 464 | struct rtattr * rta; |
| 465 | struct xfrm_userpolicy_info *xpinfo = NULL; |
| 466 | struct xfrm_user_polexpire *xpexp = NULL; |
| 467 | struct xfrm_userpolicy_id *xpid = NULL; |
| 468 | __u8 ptype = XFRM_POLICY_TYPE_MAIN; |
| 469 | FILE *fp = (FILE*)arg; |
| 470 | int len = n->nlmsg_len; |
| 471 | |
| 472 | if (n->nlmsg_type != XFRM_MSG_NEWPOLICY && |
| 473 | n->nlmsg_type != XFRM_MSG_DELPOLICY && |
| 474 | n->nlmsg_type != XFRM_MSG_UPDPOLICY && |
| 475 | n->nlmsg_type != XFRM_MSG_POLEXPIRE) { |
| 476 | fprintf(stderr, "Not a policy: %08x %08x %08x\n", |
| 477 | n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags); |
| 478 | return 0; |
| 479 | } |
| 480 | |
| 481 | if (n->nlmsg_type == XFRM_MSG_DELPOLICY) { |
| 482 | xpid = NLMSG_DATA(n); |
| 483 | len -= NLMSG_SPACE(sizeof(*xpid)); |
| 484 | } else if (n->nlmsg_type == XFRM_MSG_POLEXPIRE) { |
| 485 | xpexp = NLMSG_DATA(n); |
| 486 | xpinfo = &xpexp->pol; |
| 487 | len -= NLMSG_SPACE(sizeof(*xpexp)); |
| 488 | } else { |
| 489 | xpexp = NULL; |
| 490 | xpinfo = NLMSG_DATA(n); |
| 491 | len -= NLMSG_SPACE(sizeof(*xpinfo)); |
| 492 | } |
| 493 | |
| 494 | if (len < 0) { |
| 495 | fprintf(stderr, "BUG: wrong nlmsg len %d\n", len); |
| 496 | return -1; |
| 497 | } |
| 498 | |
| 499 | if (n->nlmsg_type == XFRM_MSG_DELPOLICY) |
| 500 | rta = XFRMPID_RTA(xpid); |
| 501 | else if (n->nlmsg_type == XFRM_MSG_POLEXPIRE) |
| 502 | rta = XFRMPEXP_RTA(xpexp); |
| 503 | else |
| 504 | rta = XFRMP_RTA(xpinfo); |
| 505 | |
| 506 | parse_rtattr(tb, XFRMA_MAX, rta, len); |
| 507 | |
| 508 | if (tb[XFRMA_POLICY_TYPE]) { |
| 509 | struct xfrm_userpolicy_type *upt; |
| 510 | |
| 511 | if (RTA_PAYLOAD(tb[XFRMA_POLICY_TYPE]) < sizeof(*upt)) { |
| 512 | fprintf(stderr, "too short XFRMA_POLICY_TYPE len\n"); |
| 513 | return -1; |
| 514 | } |
| 515 | upt = (struct xfrm_userpolicy_type *)RTA_DATA(tb[XFRMA_POLICY_TYPE]); |
| 516 | ptype = upt->type; |
| 517 | } |
| 518 | |
| 519 | if (xpinfo && !xfrm_policy_filter_match(xpinfo, ptype)) |
| 520 | return 0; |
| 521 | |
| 522 | if (n->nlmsg_type == XFRM_MSG_DELPOLICY) |
| 523 | fprintf(fp, "Deleted "); |
| 524 | else if (n->nlmsg_type == XFRM_MSG_UPDPOLICY) |
| 525 | fprintf(fp, "Updated "); |
| 526 | else if (n->nlmsg_type == XFRM_MSG_POLEXPIRE) |
| 527 | fprintf(fp, "Expired "); |
| 528 | |
| 529 | if (n->nlmsg_type == XFRM_MSG_DELPOLICY) { |
| 530 | //xfrm_policy_id_print(); |
| 531 | if (!tb[XFRMA_POLICY]) { |
| 532 | fprintf(stderr, "Buggy XFRM_MSG_DELPOLICY: no XFRMA_POLICY\n"); |
| 533 | return -1; |
| 534 | } |
| 535 | if (RTA_PAYLOAD(tb[XFRMA_POLICY]) < sizeof(*xpinfo)) { |
| 536 | fprintf(stderr, "Buggy XFRM_MSG_DELPOLICY: too short XFRMA_POLICY len\n"); |
| 537 | return -1; |
| 538 | } |
| 539 | xpinfo = (struct xfrm_userpolicy_info *)RTA_DATA(tb[XFRMA_POLICY]); |
| 540 | } |
| 541 | |
| 542 | xfrm_policy_info_print(xpinfo, tb, fp, NULL, NULL); |
| 543 | |
| 544 | if (n->nlmsg_type == XFRM_MSG_POLEXPIRE) { |
| 545 | fprintf(fp, "\t"); |
| 546 | fprintf(fp, "hard %u", xpexp->hard); |
| 547 | fprintf(fp, "%s", _SL_); |
| 548 | } |
| 549 | |
| 550 | if (oneline) |
| 551 | fprintf(fp, "\n"); |
| 552 | fflush(fp); |
| 553 | |
| 554 | return 0; |
| 555 | } |
| 556 | |
| 557 | static int xfrm_policy_get_or_delete(int argc, char **argv, int delete, |
| 558 | void *res_nlbuf) |
| 559 | { |
| 560 | struct rtnl_handle rth; |
| 561 | struct { |
| 562 | struct nlmsghdr n; |
| 563 | struct xfrm_userpolicy_id xpid; |
| 564 | char buf[RTA_BUF_SIZE]; |
| 565 | } req; |
| 566 | char *dirp = NULL; |
| 567 | char *selp = NULL; |
| 568 | char *indexp = NULL; |
| 569 | char *ptypep = NULL; |
| 570 | char *sctxp = NULL; |
| 571 | struct xfrm_userpolicy_type upt; |
| 572 | struct xfrm_mark mark = {0, 0}; |
| 573 | struct { |
| 574 | struct xfrm_user_sec_ctx sctx; |
| 575 | char str[CTX_BUF_SIZE]; |
| 576 | } ctx; |
| 577 | |
| 578 | |
| 579 | memset(&req, 0, sizeof(req)); |
| 580 | memset(&upt, 0, sizeof(upt)); |
| 581 | memset(&ctx, 0, sizeof(ctx)); |
| 582 | |
| 583 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xpid)); |
| 584 | req.n.nlmsg_flags = NLM_F_REQUEST; |
| 585 | req.n.nlmsg_type = delete ? XFRM_MSG_DELPOLICY : XFRM_MSG_GETPOLICY; |
| 586 | |
| 587 | while (argc > 0) { |
| 588 | if (strcmp(*argv, "dir") == 0) { |
| 589 | if (dirp) |
| 590 | duparg("dir", *argv); |
| 591 | dirp = *argv; |
| 592 | |
| 593 | NEXT_ARG(); |
| 594 | xfrm_policy_dir_parse(&req.xpid.dir, &argc, &argv); |
| 595 | |
| 596 | } else if (strcmp(*argv, "ctx") == 0) { |
| 597 | char *context; |
| 598 | |
| 599 | if (sctxp) |
| 600 | duparg("ctx", *argv); |
| 601 | sctxp = *argv; |
| 602 | NEXT_ARG(); |
| 603 | context = *argv; |
| 604 | xfrm_sctx_parse((char *)&ctx.str, context, &ctx.sctx); |
| 605 | } else if (strcmp(*argv, "mark") == 0) { |
| 606 | xfrm_parse_mark(&mark, &argc, &argv); |
| 607 | } else if (strcmp(*argv, "index") == 0) { |
| 608 | if (indexp) |
| 609 | duparg("index", *argv); |
| 610 | indexp = *argv; |
| 611 | |
| 612 | NEXT_ARG(); |
| 613 | if (get_u32(&req.xpid.index, *argv, 0)) |
| 614 | invarg("\"INDEX\" is invalid", *argv); |
| 615 | |
| 616 | } else if (strcmp(*argv, "ptype") == 0) { |
| 617 | if (ptypep) |
| 618 | duparg("ptype", *argv); |
| 619 | ptypep = *argv; |
| 620 | |
| 621 | NEXT_ARG(); |
| 622 | xfrm_policy_ptype_parse(&upt.type, &argc, &argv); |
| 623 | |
| 624 | } else { |
| 625 | if (selp) |
| 626 | invarg("unknown", *argv); |
| 627 | selp = *argv; |
| 628 | |
| 629 | xfrm_selector_parse(&req.xpid.sel, &argc, &argv); |
| 630 | if (preferred_family == AF_UNSPEC) |
| 631 | preferred_family = req.xpid.sel.family; |
| 632 | |
| 633 | } |
| 634 | |
| 635 | argc--; argv++; |
| 636 | } |
| 637 | |
| 638 | if (!dirp) { |
| 639 | fprintf(stderr, "Not enough information: \"DIR\" is required.\n"); |
| 640 | exit(1); |
| 641 | } |
| 642 | if (ptypep) { |
| 643 | addattr_l(&req.n, sizeof(req), XFRMA_POLICY_TYPE, |
| 644 | (void *)&upt, sizeof(upt)); |
| 645 | } |
| 646 | if (!selp && !indexp) { |
| 647 | fprintf(stderr, "Not enough information: either \"SELECTOR\" or \"INDEX\" is required.\n"); |
| 648 | exit(1); |
| 649 | } |
| 650 | if (selp && indexp) |
| 651 | duparg2("SELECTOR", "INDEX"); |
| 652 | |
| 653 | if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0) |
| 654 | exit(1); |
| 655 | |
| 656 | if (req.xpid.sel.family == AF_UNSPEC) |
| 657 | req.xpid.sel.family = AF_INET; |
| 658 | |
| 659 | if (mark.m & mark.v) { |
| 660 | int r = addattr_l(&req.n, sizeof(req.buf), XFRMA_MARK, |
| 661 | (void *)&mark, sizeof(mark)); |
| 662 | if (r < 0) { |
| 663 | fprintf(stderr, "%s: XFRMA_MARK failed\n",__func__); |
| 664 | exit(1); |
| 665 | } |
| 666 | } |
| 667 | |
| 668 | if (sctxp) { |
| 669 | addattr_l(&req.n, sizeof(req), XFRMA_SEC_CTX, |
| 670 | (void *)&ctx, ctx.sctx.len); |
| 671 | } |
| 672 | |
| 673 | if (rtnl_talk(&rth, &req.n, 0, 0, res_nlbuf) < 0) |
| 674 | exit(2); |
| 675 | |
| 676 | rtnl_close(&rth); |
| 677 | |
| 678 | return 0; |
| 679 | } |
| 680 | |
| 681 | static int xfrm_policy_delete(int argc, char **argv) |
| 682 | { |
| 683 | return xfrm_policy_get_or_delete(argc, argv, 1, NULL); |
| 684 | } |
| 685 | |
| 686 | static int xfrm_policy_get(int argc, char **argv) |
| 687 | { |
| 688 | char buf[NLMSG_BUF_SIZE]; |
| 689 | struct nlmsghdr *n = (struct nlmsghdr *)buf; |
| 690 | |
| 691 | memset(buf, 0, sizeof(buf)); |
| 692 | |
| 693 | xfrm_policy_get_or_delete(argc, argv, 0, n); |
| 694 | |
| 695 | if (xfrm_policy_print(NULL, n, (void*)stdout) < 0) { |
| 696 | fprintf(stderr, "An error :-)\n"); |
| 697 | exit(1); |
| 698 | } |
| 699 | |
| 700 | return 0; |
| 701 | } |
| 702 | |
| 703 | /* |
| 704 | * With an existing policy of nlmsg, make new nlmsg for deleting the policy |
| 705 | * and store it to buffer. |
| 706 | */ |
| 707 | static int xfrm_policy_keep(const struct sockaddr_nl *who, |
| 708 | struct nlmsghdr *n, |
| 709 | void *arg) |
| 710 | { |
| 711 | struct xfrm_buffer *xb = (struct xfrm_buffer *)arg; |
| 712 | struct rtnl_handle *rth = xb->rth; |
| 713 | struct xfrm_userpolicy_info *xpinfo = NLMSG_DATA(n); |
| 714 | int len = n->nlmsg_len; |
| 715 | struct rtattr *tb[XFRMA_MAX+1]; |
| 716 | __u8 ptype = XFRM_POLICY_TYPE_MAIN; |
| 717 | struct nlmsghdr *new_n; |
| 718 | struct xfrm_userpolicy_id *xpid; |
| 719 | |
| 720 | if (n->nlmsg_type != XFRM_MSG_NEWPOLICY) { |
| 721 | fprintf(stderr, "Not a policy: %08x %08x %08x\n", |
| 722 | n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags); |
| 723 | return 0; |
| 724 | } |
| 725 | |
| 726 | len -= NLMSG_LENGTH(sizeof(*xpinfo)); |
| 727 | if (len < 0) { |
| 728 | fprintf(stderr, "BUG: wrong nlmsg len %d\n", len); |
| 729 | return -1; |
| 730 | } |
| 731 | |
| 732 | parse_rtattr(tb, XFRMA_MAX, XFRMP_RTA(xpinfo), len); |
| 733 | |
| 734 | if (tb[XFRMA_POLICY_TYPE]) { |
| 735 | struct xfrm_userpolicy_type *upt; |
| 736 | |
| 737 | if (RTA_PAYLOAD(tb[XFRMA_POLICY_TYPE]) < sizeof(*upt)) { |
| 738 | fprintf(stderr, "too short XFRMA_POLICY_TYPE len\n"); |
| 739 | return -1; |
| 740 | } |
| 741 | upt = (struct xfrm_userpolicy_type *)RTA_DATA(tb[XFRMA_POLICY_TYPE]); |
| 742 | ptype = upt->type; |
| 743 | } |
| 744 | |
| 745 | if (!xfrm_policy_filter_match(xpinfo, ptype)) |
| 746 | return 0; |
| 747 | |
| 748 | if (xb->offset > xb->size) { |
| 749 | fprintf(stderr, "Policy buffer overflow\n"); |
| 750 | return -1; |
| 751 | } |
| 752 | |
| 753 | new_n = (struct nlmsghdr *)(xb->buf + xb->offset); |
| 754 | new_n->nlmsg_len = NLMSG_LENGTH(sizeof(*xpid)); |
| 755 | new_n->nlmsg_flags = NLM_F_REQUEST; |
| 756 | new_n->nlmsg_type = XFRM_MSG_DELPOLICY; |
| 757 | new_n->nlmsg_seq = ++rth->seq; |
| 758 | |
| 759 | xpid = NLMSG_DATA(new_n); |
| 760 | memcpy(&xpid->sel, &xpinfo->sel, sizeof(xpid->sel)); |
| 761 | xpid->dir = xpinfo->dir; |
| 762 | xpid->index = xpinfo->index; |
| 763 | |
| 764 | xb->offset += new_n->nlmsg_len; |
| 765 | xb->nlmsg_count ++; |
| 766 | |
| 767 | return 0; |
| 768 | } |
| 769 | |
| 770 | static int xfrm_policy_list_or_deleteall(int argc, char **argv, int deleteall) |
| 771 | { |
| 772 | char *selp = NULL; |
| 773 | struct rtnl_handle rth; |
| 774 | |
| 775 | if (argc > 0) |
| 776 | filter.use = 1; |
| 777 | filter.xpinfo.sel.family = preferred_family; |
| 778 | |
| 779 | while (argc > 0) { |
| 780 | if (strcmp(*argv, "dir") == 0) { |
| 781 | NEXT_ARG(); |
| 782 | xfrm_policy_dir_parse(&filter.xpinfo.dir, &argc, &argv); |
| 783 | |
| 784 | filter.dir_mask = XFRM_FILTER_MASK_FULL; |
| 785 | |
| 786 | } else if (strcmp(*argv, "index") == 0) { |
| 787 | NEXT_ARG(); |
| 788 | if (get_u32(&filter.xpinfo.index, *argv, 0)) |
| 789 | invarg("\"INDEX\" is invalid", *argv); |
| 790 | |
| 791 | filter.index_mask = XFRM_FILTER_MASK_FULL; |
| 792 | |
| 793 | } else if (strcmp(*argv, "ptype") == 0) { |
| 794 | NEXT_ARG(); |
| 795 | xfrm_policy_ptype_parse(&filter.ptype, &argc, &argv); |
| 796 | |
| 797 | filter.ptype_mask = XFRM_FILTER_MASK_FULL; |
| 798 | |
| 799 | } else if (strcmp(*argv, "action") == 0) { |
| 800 | NEXT_ARG(); |
| 801 | if (strcmp(*argv, "allow") == 0) |
| 802 | filter.xpinfo.action = XFRM_POLICY_ALLOW; |
| 803 | else if (strcmp(*argv, "block") == 0) |
| 804 | filter.xpinfo.action = XFRM_POLICY_BLOCK; |
| 805 | else |
| 806 | invarg("\"ACTION\" is invalid\n", *argv); |
| 807 | |
| 808 | filter.action_mask = XFRM_FILTER_MASK_FULL; |
| 809 | |
| 810 | } else if (strcmp(*argv, "priority") == 0) { |
| 811 | NEXT_ARG(); |
| 812 | if (get_u32(&filter.xpinfo.priority, *argv, 0)) |
| 813 | invarg("\"PRIORITY\" is invalid", *argv); |
| 814 | |
| 815 | filter.priority_mask = XFRM_FILTER_MASK_FULL; |
| 816 | |
| 817 | } else if (strcmp(*argv, "flag") == 0) { |
| 818 | NEXT_ARG(); |
| 819 | xfrm_policy_flag_parse(&filter.xpinfo.flags, &argc, |
| 820 | &argv); |
| 821 | |
| 822 | filter.policy_flags_mask = XFRM_FILTER_MASK_FULL; |
| 823 | |
| 824 | } else { |
| 825 | if (selp) |
| 826 | invarg("unknown", *argv); |
| 827 | selp = *argv; |
| 828 | |
| 829 | xfrm_selector_parse(&filter.xpinfo.sel, &argc, &argv); |
| 830 | if (preferred_family == AF_UNSPEC) |
| 831 | preferred_family = filter.xpinfo.sel.family; |
| 832 | |
| 833 | } |
| 834 | |
| 835 | argc--; argv++; |
| 836 | } |
| 837 | |
| 838 | if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0) |
| 839 | exit(1); |
| 840 | |
| 841 | if (deleteall) { |
| 842 | struct xfrm_buffer xb; |
| 843 | char buf[NLMSG_DELETEALL_BUF_SIZE]; |
| 844 | int i; |
| 845 | |
| 846 | xb.buf = buf; |
| 847 | xb.size = sizeof(buf); |
| 848 | xb.rth = &rth; |
| 849 | |
| 850 | for (i = 0; ; i++) { |
| 851 | xb.offset = 0; |
| 852 | xb.nlmsg_count = 0; |
| 853 | |
| 854 | if (show_stats > 1) |
| 855 | fprintf(stderr, "Delete-all round = %d\n", i); |
| 856 | |
| 857 | if (rtnl_wilddump_request(&rth, preferred_family, XFRM_MSG_GETPOLICY) < 0) { |
| 858 | perror("Cannot send dump request"); |
| 859 | exit(1); |
| 860 | } |
| 861 | |
| 862 | if (rtnl_dump_filter(&rth, xfrm_policy_keep, &xb) < 0) { |
| 863 | fprintf(stderr, "Delete-all terminated\n"); |
| 864 | exit(1); |
| 865 | } |
| 866 | if (xb.nlmsg_count == 0) { |
| 867 | if (show_stats > 1) |
| 868 | fprintf(stderr, "Delete-all completed\n"); |
| 869 | break; |
| 870 | } |
| 871 | |
| 872 | if (rtnl_send_check(&rth, xb.buf, xb.offset) < 0) { |
| 873 | perror("Failed to send delete-all request"); |
| 874 | exit(1); |
| 875 | } |
| 876 | if (show_stats > 1) |
| 877 | fprintf(stderr, "Delete-all nlmsg count = %d\n", xb.nlmsg_count); |
| 878 | |
| 879 | xb.offset = 0; |
| 880 | xb.nlmsg_count = 0; |
| 881 | } |
| 882 | } else { |
| 883 | if (rtnl_wilddump_request(&rth, preferred_family, XFRM_MSG_GETPOLICY) < 0) { |
| 884 | perror("Cannot send dump request"); |
| 885 | exit(1); |
| 886 | } |
| 887 | |
| 888 | if (rtnl_dump_filter(&rth, xfrm_policy_print, stdout) < 0) { |
| 889 | fprintf(stderr, "Dump terminated\n"); |
| 890 | exit(1); |
| 891 | } |
| 892 | } |
| 893 | |
| 894 | rtnl_close(&rth); |
| 895 | |
| 896 | exit(0); |
| 897 | } |
| 898 | |
| 899 | int print_spdinfo( struct nlmsghdr *n, void *arg) |
| 900 | { |
| 901 | FILE *fp = (FILE*)arg; |
| 902 | __u32 *f = NLMSG_DATA(n); |
| 903 | struct rtattr * tb[XFRMA_SPD_MAX+1]; |
| 904 | struct rtattr * rta; |
| 905 | |
| 906 | int len = n->nlmsg_len; |
| 907 | |
| 908 | len -= NLMSG_LENGTH(sizeof(__u32)); |
| 909 | if (len < 0) { |
| 910 | fprintf(stderr, "SPDinfo: Wrong len %d\n", len); |
| 911 | return -1; |
| 912 | } |
| 913 | |
| 914 | rta = XFRMSAPD_RTA(f); |
| 915 | parse_rtattr(tb, XFRMA_SPD_MAX, rta, len); |
| 916 | |
| 917 | fprintf(fp,"\t SPD"); |
| 918 | if (tb[XFRMA_SPD_INFO]) { |
| 919 | struct xfrmu_spdinfo *si; |
| 920 | |
| 921 | if (RTA_PAYLOAD(tb[XFRMA_SPD_INFO]) < sizeof(*si)) { |
| 922 | fprintf(stderr, "SPDinfo: Wrong len %d\n", len); |
| 923 | return -1; |
| 924 | } |
| 925 | si = RTA_DATA(tb[XFRMA_SPD_INFO]); |
| 926 | fprintf(fp," IN %d", si->incnt); |
| 927 | fprintf(fp," OUT %d", si->outcnt); |
| 928 | fprintf(fp," FWD %d", si->fwdcnt); |
| 929 | |
| 930 | if (show_stats) { |
| 931 | fprintf(fp," (Sock:"); |
| 932 | fprintf(fp," IN %d", si->inscnt); |
| 933 | fprintf(fp," OUT %d", si->outscnt); |
| 934 | fprintf(fp," FWD %d", si->fwdscnt); |
| 935 | fprintf(fp,")"); |
| 936 | } |
| 937 | |
| 938 | fprintf(fp,"\n"); |
| 939 | } |
| 940 | if (show_stats > 1) { |
| 941 | struct xfrmu_spdhinfo *sh; |
| 942 | |
| 943 | if (tb[XFRMA_SPD_HINFO]) { |
| 944 | if (RTA_PAYLOAD(tb[XFRMA_SPD_HINFO]) < sizeof(*sh)) { |
| 945 | fprintf(stderr, "SPDinfo: Wrong len %d\n", len); |
| 946 | return -1; |
| 947 | } |
| 948 | sh = RTA_DATA(tb[XFRMA_SPD_HINFO]); |
| 949 | fprintf(fp,"\t SPD buckets:"); |
| 950 | fprintf(fp," count %d", sh->spdhcnt); |
| 951 | fprintf(fp," Max %d", sh->spdhmcnt); |
| 952 | } |
| 953 | } |
| 954 | fprintf(fp,"\n"); |
| 955 | |
| 956 | return 0; |
| 957 | } |
| 958 | |
| 959 | static int xfrm_spd_getinfo(int argc, char **argv) |
| 960 | { |
| 961 | struct rtnl_handle rth; |
| 962 | struct { |
| 963 | struct nlmsghdr n; |
| 964 | __u32 flags; |
| 965 | char ans[128]; |
| 966 | } req; |
| 967 | |
| 968 | memset(&req, 0, sizeof(req)); |
| 969 | |
| 970 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(__u32)); |
| 971 | req.n.nlmsg_flags = NLM_F_REQUEST; |
| 972 | req.n.nlmsg_type = XFRM_MSG_GETSPDINFO; |
| 973 | req.flags = 0XFFFFFFFF; |
| 974 | |
| 975 | if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0) |
| 976 | exit(1); |
| 977 | |
| 978 | if (rtnl_talk(&rth, &req.n, 0, 0, &req.n) < 0) |
| 979 | exit(2); |
| 980 | |
| 981 | print_spdinfo(&req.n, (void*)stdout); |
| 982 | |
| 983 | rtnl_close(&rth); |
| 984 | |
| 985 | return 0; |
| 986 | } |
| 987 | |
| 988 | static int xfrm_policy_flush(int argc, char **argv) |
| 989 | { |
| 990 | struct rtnl_handle rth; |
| 991 | struct { |
| 992 | struct nlmsghdr n; |
| 993 | char buf[RTA_BUF_SIZE]; |
| 994 | } req; |
| 995 | char *ptypep = NULL; |
| 996 | struct xfrm_userpolicy_type upt; |
| 997 | |
| 998 | memset(&req, 0, sizeof(req)); |
| 999 | memset(&upt, 0, sizeof(upt)); |
| 1000 | |
| 1001 | req.n.nlmsg_len = NLMSG_LENGTH(0); /* nlmsg data is nothing */ |
| 1002 | req.n.nlmsg_flags = NLM_F_REQUEST; |
| 1003 | req.n.nlmsg_type = XFRM_MSG_FLUSHPOLICY; |
| 1004 | |
| 1005 | while (argc > 0) { |
| 1006 | if (strcmp(*argv, "ptype") == 0) { |
| 1007 | if (ptypep) |
| 1008 | duparg("ptype", *argv); |
| 1009 | ptypep = *argv; |
| 1010 | |
| 1011 | NEXT_ARG(); |
| 1012 | xfrm_policy_ptype_parse(&upt.type, &argc, &argv); |
| 1013 | } else |
| 1014 | invarg("unknown", *argv); |
| 1015 | |
| 1016 | argc--; argv++; |
| 1017 | } |
| 1018 | |
| 1019 | if (ptypep) { |
| 1020 | addattr_l(&req.n, sizeof(req), XFRMA_POLICY_TYPE, |
| 1021 | (void *)&upt, sizeof(upt)); |
| 1022 | } |
| 1023 | |
| 1024 | if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0) |
| 1025 | exit(1); |
| 1026 | |
| 1027 | if (show_stats > 1) |
| 1028 | fprintf(stderr, "Flush policy\n"); |
| 1029 | |
| 1030 | if (rtnl_talk(&rth, &req.n, 0, 0, NULL) < 0) |
| 1031 | exit(2); |
| 1032 | |
| 1033 | rtnl_close(&rth); |
| 1034 | |
| 1035 | return 0; |
| 1036 | } |
| 1037 | |
| 1038 | int do_xfrm_policy(int argc, char **argv) |
| 1039 | { |
| 1040 | if (argc < 1) |
| 1041 | return xfrm_policy_list_or_deleteall(0, NULL, 0); |
| 1042 | |
| 1043 | if (matches(*argv, "add") == 0) |
| 1044 | return xfrm_policy_modify(XFRM_MSG_NEWPOLICY, 0, |
| 1045 | argc-1, argv+1); |
| 1046 | if (matches(*argv, "update") == 0) |
| 1047 | return xfrm_policy_modify(XFRM_MSG_UPDPOLICY, 0, |
| 1048 | argc-1, argv+1); |
| 1049 | if (matches(*argv, "delete") == 0) |
| 1050 | return xfrm_policy_delete(argc-1, argv+1); |
| 1051 | if (matches(*argv, "deleteall") == 0 || matches(*argv, "delall") == 0) |
| 1052 | return xfrm_policy_list_or_deleteall(argc-1, argv+1, 1); |
| 1053 | if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0 |
| 1054 | || matches(*argv, "lst") == 0) |
| 1055 | return xfrm_policy_list_or_deleteall(argc-1, argv+1, 0); |
| 1056 | if (matches(*argv, "get") == 0) |
| 1057 | return xfrm_policy_get(argc-1, argv+1); |
| 1058 | if (matches(*argv, "flush") == 0) |
| 1059 | return xfrm_policy_flush(argc-1, argv+1); |
| 1060 | if (matches(*argv, "count") == 0) |
| 1061 | return xfrm_spd_getinfo(argc, argv); |
| 1062 | if (matches(*argv, "help") == 0) |
| 1063 | usage(); |
| 1064 | fprintf(stderr, "Command \"%s\" is unknown, try \"ip xfrm policy help\".\n", *argv); |
| 1065 | exit(-1); |
| 1066 | } |