]> git.proxmox.com Git - mirror_iproute2.git/blame - ip/xfrm_state.c
projects / mirror_iproute2.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Import patch iproute-xfrm.3
[mirror_iproute2.git] / ip / xfrm_state.c
CommitLineData
c7699875 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_FLUSH_BUF_SIZE (4096-512)
38#define NLMSG_FLUSH_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_DEPTH)
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
54static void usage(void) __attribute__((noreturn));
55
56static void usage(void)
57{
58 fprintf(stderr, "Usage: ip xfrm state { add | update } ID [ ALGO-LIST ] [ mode MODE ]\n");
59 fprintf(stderr, " [ reqid REQID ] [ FLAG-LIST ] [ sel SELECTOR ] [ LIMIT-LIST ]\n");
60
61 fprintf(stderr, "Usage: ip xfrm state { delete | get } ID\n");
62 fprintf(stderr, "Usage: ip xfrm state { flush | list } [ ID ] [ mode MODE ] [ reqid REQID ]\n");
63 fprintf(stderr, " [ FLAG_LIST ]\n");
64
65 fprintf(stderr, "ID := [ src ADDR ] [ dst ADDR ] [ proto XFRM_PROTO ] [ spi SPI ]\n");
66 fprintf(stderr, "XFRM_PROTO := [ esp | ah | ipcomp ]\n");
67 //fprintf(stderr, "SPI - security parameter index(default=0)\n");
68
69 fprintf(stderr, "MODE := [ transport | tunnel ](default=transport)\n");
70 //fprintf(stderr, "REQID - number(default=0)\n");
71
72 fprintf(stderr, "FLAG-LIST := [ FLAG-LIST ] [ flag FLAG ]\n");
73 fprintf(stderr, "FLAG := [ noecn ]\n");
74
75 fprintf(stderr, "ALGO-LIST := [ ALGO-LIST ] | [ algo ALGO ]\n");
76 fprintf(stderr, "ALGO := ALGO_TYPE ALGO_NAME ALGO_KEY\n");
77 fprintf(stderr, "ALGO_TYPE := [ E | A | C ]\n");
78 //fprintf(stderr, "ALGO_NAME - algorithm name\n");
79 //fprintf(stderr, "ALGO_KEY - algorithm key\n");
80
81 fprintf(stderr, "SELECTOR := src ADDR[/PLEN] dst ADDR[/PLEN] [ upspec UPSPEC ] [ dev DEV ]\n");
82
83 fprintf(stderr, "UPSPEC := proto PROTO [ sport PORT ] [ dport PORT ]\n");
84
85 //fprintf(stderr, "DEV - device name(default=none)\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 exit(-1);
90}
91
92static int xfrm_algo_parse(struct xfrm_algo *alg, enum xfrm_attr_type_t type,
93 char *name, char *key, int max)
94{
95 int len;
96
97#if 1
98 /* XXX: verifying both name and key is required! */
99 fprintf(stderr, "warning: ALGONAME/ALGOKEY will send to kernel promiscuously!(verifying them isn't implemented yet)\n");
100#endif
101
102 strncpy(alg->alg_name, name, sizeof(alg->alg_name));
103
104 if (strncmp(key, "0x", 2) == 0) {
105 /*
106 * XXX: fix me!!
107 */
108 __u64 val = 0;
109 char *p = (char *)&val;
110
111 if (get_u64(&val, key, 16))
112 invarg("\"ALGOKEY\" is invalid", key);
113
114 len = (strlen(key) - 2) / 2;
115 if (len > sizeof(val))
116 invarg("\"ALGOKEY\" is invalid: too large", key);
117
118 if (len > 0) {
119 int index = sizeof(val) - len;
120 if (len > max)
121 invarg("\"ALGOKEY\" makes buffer overflow\n", key);
122
123 memcpy(alg->alg_key, &p[index], len);
124 }
125
126 } else {
127 len = strlen(key);
128 if (len > 0) {
129 if (len > max)
130 invarg("\"ALGOKEY\" makes buffer overflow\n", key);
131
132 strncpy(alg->alg_key, key, len);
133 }
134 }
135
136 alg->alg_key_len = len * 8;
137
138 return 0;
139}
140
141static int xfrm_state_flag_parse(__u8 *flags, int *argcp, char ***argvp)
142{
143 int argc = *argcp;
144 char **argv = *argvp;
145
146 if (strcmp(*argv, "noecn") == 0)
147 *flags |= XFRM_STATE_NOECN;
148 else
149 invarg("\"FLAG\" is invalid", *argv);
150
151 filter.state_flags_mask = XFRM_FILTER_MASK_FULL;
152
153 *argcp = argc;
154 *argvp = argv;
155
156 return 0;
157}
158
159static int xfrm_state_modify(int cmd, unsigned flags, int argc, char **argv)
160{
161 struct rtnl_handle rth;
162 struct {
163 struct nlmsghdr n;
164 struct xfrm_usersa_info xsinfo;
165 char buf[RTA_BUF_SIZE];
166 } req;
167 char *idp = NULL;
168 char *ealgop = NULL;
169 char *aalgop = NULL;
170 char *calgop = NULL;
171
172 memset(&req, 0, sizeof(req));
173
174 req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xsinfo));
175 req.n.nlmsg_flags = NLM_F_REQUEST|flags;
176 req.n.nlmsg_type = cmd;
177 req.xsinfo.family = preferred_family;
178
179 req.xsinfo.lft.soft_byte_limit = XFRM_INF;
180 req.xsinfo.lft.hard_byte_limit = XFRM_INF;
181 req.xsinfo.lft.soft_packet_limit = XFRM_INF;
182 req.xsinfo.lft.hard_packet_limit = XFRM_INF;
183
184 while (argc > 0) {
185 if (strcmp(*argv, "algo") == 0) {
186 struct {
187 struct xfrm_algo alg;
188 char buf[XFRM_ALGO_KEY_BUF_SIZE];
189 } alg;
190 int len;
191 enum xfrm_attr_type_t type;
192 char *name;
193 char *key;
194
195 NEXT_ARG();
196
197 if (strcmp(*argv, "E") == 0) {
198 if (ealgop)
199 duparg("ALGOTYPE", *argv);
200 ealgop = *argv;
201 type = XFRMA_ALG_CRYPT;
202 } else if (strcmp(*argv, "A") == 0) {
203 if (aalgop)
204 duparg("ALGOTYPE", *argv);
205 aalgop = *argv;
206 type = XFRMA_ALG_AUTH;
207
208 } else if (strcmp(*argv, "C") == 0) {
209 if (calgop)
210 duparg("ALGOTYPE", *argv);
211 calgop = *argv;
212 type = XFRMA_ALG_COMP;
213 } else
214 invarg("\"ALGOTYPE\" is invalid\n", *argv);
215
216 if (!NEXT_ARG_OK())
217 missarg("ALGONAME");
218 NEXT_ARG();
219 name = *argv;
220
221 if (!NEXT_ARG_OK())
222 missarg("ALGOKEY");
223 NEXT_ARG();
224 key = *argv;
225
226 memset(&alg, 0, sizeof(alg));
227
228 xfrm_algo_parse((void *)&alg, type, name, key, sizeof(alg.buf));
229 len = sizeof(struct xfrm_algo) + alg.alg.alg_key_len;
230
231 addattr_l(&req.n, sizeof(req.buf), type,
232 (void *)&alg, len);
233
234 } else if (strcmp(*argv, "mode") == 0) {
235 NEXT_ARG();
236 xfrm_mode_parse(&req.xsinfo.mode, &argc, &argv);
237 } else if (strcmp(*argv, "reqid") == 0) {
238 NEXT_ARG();
239 xfrm_reqid_parse(&req.xsinfo.reqid, &argc, &argv);
240 } else if (strcmp(*argv, "flag") == 0) {
241 NEXT_ARG();
242 xfrm_state_flag_parse(&req.xsinfo.flags, &argc, &argv);
243 } else if (strcmp(*argv, "sel") == 0) {
244 NEXT_ARG();
245 xfrm_selector_parse(&req.xsinfo.sel, &argc, &argv);
246
247 } else if (strcmp(*argv, "limit") == 0) {
248 NEXT_ARG();
249 xfrm_lifetime_cfg_parse(&req.xsinfo.lft, &argc, &argv);
250 } else {
251 if (idp)
252 invarg("unknown", *argv);
253 idp = *argv;
254
255 /* ID */
256 xfrm_id_parse(&req.xsinfo.saddr, &req.xsinfo.id,
257 &req.xsinfo.family, &argc, &argv);
258 if (preferred_family == AF_UNSPEC)
259 preferred_family = req.xsinfo.family;
260 }
261 argc--; argv++;
262 }
263
264 if (!idp) {
265 fprintf(stderr, "Not enough information: \"ID\" is required\n");
266 exit(1);
267 }
268
269 if (ealgop || aalgop || calgop) {
270 if (req.xsinfo.id.proto != IPPROTO_ESP &&
271 req.xsinfo.id.proto != IPPROTO_AH &&
272 req.xsinfo.id.proto != IPPROTO_COMP) {
273 fprintf(stderr, "\"ALGO\" is invalid with proto=%d\n", req.xsinfo.id.proto);
274 exit(1);
275 }
276 } else {
277 if (req.xsinfo.id.proto == IPPROTO_ESP ||
278 req.xsinfo.id.proto == IPPROTO_AH ||
279 req.xsinfo.id.proto == IPPROTO_COMP) {
280 fprintf(stderr, "\"ALGO\" is required with proto=%d\n", req.xsinfo.id.proto);
281 exit (1);
282 }
283 }
284
285 if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
286 exit(1);
287
288 if (req.xsinfo.family == AF_UNSPEC)
289 req.xsinfo.family = AF_INET;
290
291 if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0)
292 exit(2);
293
294 rtnl_close(&rth);
295
296 return 0;
297}
298
299static int xfrm_state_filter_match(struct xfrm_usersa_info *xsinfo)
300{
301 if (!filter.use)
302 return 1;
303
304 if (filter.id_src_mask)
305 if (memcmp(&xsinfo->saddr, &filter.xsinfo.saddr,
306 filter.id_src_mask) != 0)
307 return 0;
308 if (filter.id_dst_mask)
309 if (memcmp(&xsinfo->id.daddr, &filter.xsinfo.id.daddr,
310 filter.id_dst_mask) != 0)
311 return 0;
312 if ((xsinfo->id.proto^filter.xsinfo.id.proto)&filter.id_proto_mask)
313 return 0;
314 if ((xsinfo->id.spi^filter.xsinfo.id.spi)&filter.id_spi_mask)
315 return 0;
316 if ((xsinfo->mode^filter.xsinfo.mode)&filter.mode_mask)
317 return 0;
318 if ((xsinfo->reqid^filter.xsinfo.reqid)&filter.reqid_mask)
319 return 0;
320 if (filter.state_flags_mask)
321 if ((xsinfo->flags & filter.xsinfo.flags) == 0)
322 return 0;
323
324 return 1;
325}
326
327int xfrm_state_print(struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
328{
329 FILE *fp = (FILE*)arg;
330 struct xfrm_usersa_info *xsinfo = NLMSG_DATA(n);
331 int len = n->nlmsg_len;
332 struct rtattr * tb[XFRMA_MAX+1];
333 int ntb;
334
335 if (n->nlmsg_type != XFRM_MSG_NEWSA &&
336 n->nlmsg_type != XFRM_MSG_DELSA) {
337 fprintf(stderr, "Not a state: %08x %08x %08x\n",
338 n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
339 return 0;
340 }
341
342 len -= NLMSG_LENGTH(sizeof(*xsinfo));
343 if (len < 0) {
344 fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
345 return -1;
346 }
347
348 if (!xfrm_state_filter_match(xsinfo))
349 return 0;
350
351 memset(tb, 0, sizeof(tb));
352 ntb = parse_rtattr_byindex(tb, XFRM_MAX_DEPTH, XFRMS_RTA(xsinfo), len);
353
354 if (n->nlmsg_type == XFRM_MSG_DELSA)
355 fprintf(fp, "Deleted ");
356
357 xfrm_id_info_print(&xsinfo->saddr, &xsinfo->id, xsinfo->mode,
358 xsinfo->reqid, xsinfo->family, fp, NULL);
359
360 if (show_stats > 0) {
361 fprintf(fp, "\t");
362 fprintf(fp, "seq 0x%08u ", xsinfo->seq);
363 fprintf(fp, "replay-window %d ", xsinfo->replay_window);
364 fprintf(fp, "flags ");
365 if (xsinfo->flags & XFRM_STATE_NOECN)
366 fprintf(fp, "noecn ");
367 fprintf(fp, "(0x%s)", strxf_flags(xsinfo->flags));
368
369 fprintf(fp, "\n");
370 }
371
372 xfrm_xfrma_print(tb, ntb, xsinfo->family, fp, "\t");
373
374 if (show_stats > 0) {
375 fprintf(fp, "\tsel:\n");
376 xfrm_selector_print(&xsinfo->sel, xsinfo->family, fp, "\t ");
377 }
378
379 if (show_stats > 0) {
380 xfrm_lifetime_print(&xsinfo->lft, &xsinfo->curlft, fp, "\t");
381 xfrm_stats_print(&xsinfo->stats, fp, "\t");
382 }
383
384 return 0;
385}
386
387static int xfrm_state_get_or_delete(int argc, char **argv, int delete)
388{
389 struct rtnl_handle rth;
390 struct {
391 struct nlmsghdr n;
392 struct xfrm_usersa_id xsid;
393 } req;
394 struct xfrm_id id;
395 char *idp = NULL;
396
397 memset(&req, 0, sizeof(req));
398
399 req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xsid));
400 req.n.nlmsg_flags = NLM_F_REQUEST;
401 req.n.nlmsg_type = delete ? XFRM_MSG_DELSA : XFRM_MSG_GETSA;
402 req.xsid.family = preferred_family;
403
404 while (argc > 0) {
405 /*
406 * XXX: Source address is not used and ignore it to follow
407 * XXX: a manner of setkey e.g. in the case of deleting/getting
408 * XXX: message of IPsec SA.
409 */
410 xfrm_address_t ignore_saddr;
411
412 if (idp)
413 invarg("unknown", *argv);
414 idp = *argv;
415
416 /* ID */
417 memset(&id, 0, sizeof(id));
418 xfrm_id_parse(&ignore_saddr, &id, &req.xsid.family,
419 &argc, &argv);
420
421 memcpy(&req.xsid.daddr, &id.daddr, sizeof(req.xsid.daddr));
422 req.xsid.spi = id.spi;
423 req.xsid.proto = id.proto;
424
425 argc--; argv++;
426 }
427
428 if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
429 exit(1);
430
431 if (req.xsid.family == AF_UNSPEC)
432 req.xsid.family = AF_INET;
433
434 if (delete) {
435 if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0)
436 exit(2);
437 } else {
438 char buf[NLMSG_BUF_SIZE];
439 struct nlmsghdr *res_n = (struct nlmsghdr *)buf;
440
441 memset(buf, 0, sizeof(buf));
442
443 if (rtnl_talk(&rth, &req.n, 0, 0, res_n, NULL, NULL) < 0)
444 exit(2);
445
446 if (xfrm_state_print(NULL, res_n, (void*)stdout) < 0) {
447 fprintf(stderr, "An error :-)\n");
448 exit(1);
449 }
450 }
451
452 rtnl_close(&rth);
453
454 return 0;
455}
456
457/*
458 * With an existing state of nlmsg, make new nlmsg for deleting the state
459 * and store it to buffer.
460 */
461int xfrm_state_keep(struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
462{
463 struct xfrm_buffer *xb = (struct xfrm_buffer *)arg;
464 struct rtnl_handle *rth = xb->rth;
465 struct xfrm_usersa_info *xsinfo = NLMSG_DATA(n);
466 int len = n->nlmsg_len;
467 struct nlmsghdr *new_n;
468 struct xfrm_usersa_id *xsid;
469
470 if (n->nlmsg_type != XFRM_MSG_NEWSA) {
471 fprintf(stderr, "Not a state: %08x %08x %08x\n",
472 n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
473 return 0;
474 }
475
476 len -= NLMSG_LENGTH(sizeof(*xsinfo));
477 if (len < 0) {
478 fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
479 return -1;
480 }
481
482 if (!xfrm_state_filter_match(xsinfo))
483 return 0;
484
485 if (xb->offset > xb->size) {
486 fprintf(stderr, "Flush buffer overflow\n");
487 return -1;
488 }
489
490 new_n = (struct nlmsghdr *)(xb->buf + xb->offset);
491 new_n->nlmsg_len = NLMSG_LENGTH(sizeof(*xsid));
492 new_n->nlmsg_flags = NLM_F_REQUEST;
493 new_n->nlmsg_type = XFRM_MSG_DELSA;
494 new_n->nlmsg_seq = ++rth->seq;
495
496 xsid = NLMSG_DATA(new_n);
497 xsid->family = xsinfo->family;
498 memcpy(&xsid->daddr, &xsinfo->id.daddr, sizeof(xsid->daddr));
499 xsid->spi = xsinfo->id.spi;
500 xsid->proto = xsinfo->id.proto;
501
502 xb->offset += new_n->nlmsg_len;
503 xb->nlmsg_count ++;
504
505 return 0;
506}
507
508static int xfrm_state_list_or_flush(int argc, char **argv, int flush)
509{
510 char *idp = NULL;
511 struct rtnl_handle rth;
512
513 filter.use = 1;
514 filter.xsinfo.family = preferred_family;
515
516 while (argc > 0) {
517 if (strcmp(*argv, "mode") == 0) {
518 NEXT_ARG();
519 xfrm_mode_parse(&filter.xsinfo.mode, &argc, &argv);
520
521 filter.mode_mask = XFRM_FILTER_MASK_FULL;
522
523 } else if (strcmp(*argv, "reqid") == 0) {
524 NEXT_ARG();
525 xfrm_reqid_parse(&filter.xsinfo.reqid, &argc, &argv);
526
527 filter.reqid_mask = XFRM_FILTER_MASK_FULL;
528
529 } else if (strcmp(*argv, "flag") == 0) {
530 NEXT_ARG();
531 xfrm_state_flag_parse(&filter.xsinfo.flags, &argc, &argv);
532
533 filter.state_flags_mask = XFRM_FILTER_MASK_FULL;
534
535 } else {
536 if (idp)
537 invarg("unknown", *argv);
538 idp = *argv;
539
540 /* ID */
541 xfrm_id_parse(&filter.xsinfo.saddr,
542 &filter.xsinfo.id,
543 &filter.xsinfo.family, &argc, &argv);
544 if (preferred_family == AF_UNSPEC)
545 preferred_family = filter.xsinfo.family;
546 }
547 argc--; argv++;
548 }
549
550 if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
551 exit(1);
552
553 if (flush) {
554 struct xfrm_buffer xb;
555 char buf[NLMSG_FLUSH_BUF_SIZE];
556 int i;
557
558 xb.buf = buf;
559 xb.size = sizeof(buf);
560 xb.rth = &rth;
561
562 for (i = 0; ; i++) {
563 xb.offset = 0;
564 xb.nlmsg_count = 0;
565
566 if (show_stats > 1)
567 fprintf(stderr, "Flush round = %d\n", i);
568
569 if (rtnl_wilddump_request(&rth, preferred_family, XFRM_MSG_GETSA) < 0) {
570 perror("Cannot send dump request");
571 exit(1);
572 }
573
574 if (rtnl_dump_filter(&rth, xfrm_state_keep, &xb, NULL, NULL) < 0) {
575 fprintf(stderr, "Flush terminated\n");
576 exit(1);
577 }
578 if (xb.nlmsg_count == 0) {
579 if (show_stats > 1)
580 fprintf(stderr, "Flush completed\n");
581 break;
582 }
583
584 if (rtnl_send(&rth, xb.buf, xb.offset) < 0) {
585 perror("Failed to send flush request\n");
586 exit(1);
587 }
588 if (show_stats > 1)
589 fprintf(stderr, "Flushed nlmsg count = %d\n", xb.nlmsg_count);
590
591 xb.offset = 0;
592 xb.nlmsg_count = 0;
593 }
594
595 } else {
596 if (rtnl_wilddump_request(&rth, preferred_family, XFRM_MSG_GETSA) < 0) {
597 perror("Cannot send dump request");
598 exit(1);
599 }
600
601 if (rtnl_dump_filter(&rth, xfrm_state_print, stdout, NULL, NULL) < 0) {
602 fprintf(stderr, "Dump terminated\n");
603 exit(1);
604 }
605 }
606
607 rtnl_close(&rth);
608
609 exit(0);
610}
611
612int do_xfrm_state(int argc, char **argv)
613{
614 if (argc < 1)
615 return xfrm_state_list_or_flush(0, NULL, 0);
616
617 if (matches(*argv, "add") == 0)
618 return xfrm_state_modify(XFRM_MSG_NEWSA, 0,
619 argc-1, argv+1);
620 if (matches(*argv, "update") == 0)
621 return xfrm_state_modify(XFRM_MSG_UPDSA, 0,
622 argc-1, argv+1);
623 if (matches(*argv, "delete") == 0 || matches(*argv, "del") == 0)
624 return xfrm_state_get_or_delete(argc-1, argv+1, 1);
625 if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
626 || matches(*argv, "lst") == 0)
627 return xfrm_state_list_or_flush(argc-1, argv+1, 0);
628 if (matches(*argv, "get") == 0)
629 return xfrm_state_get_or_delete(argc-1, argv+1, 0);
630 if (matches(*argv, "flush") == 0)
631 return xfrm_state_list_or_flush(argc-1, argv+1, 1);
632 if (matches(*argv, "help") == 0)
633 usage();
634 fprintf(stderr, "Command \"%s\" is unknown, try \"ip xfrm state help\".\n", *argv);
635 exit(-1);
636}
Upstream mirror of iproute2