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xfrm: add option to hide keys in state output
[mirror_iproute2.git] / ip / xfrm_state.c
1 /* $USAGI: $ */
2
3 /*
4 * Copyright (C)2004 USAGI/WIDE Project
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, 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 "utils.h"
32 #include "xfrm.h"
33 #include "ip_common.h"
34
35 /* #define NLMSG_DELETEALL_BUF_SIZE (4096-512) */
36 #define NLMSG_DELETEALL_BUF_SIZE 8192
37
38 /*
39 * Receiving buffer defines:
40 * nlmsg
41 * data = struct xfrm_usersa_info
42 * rtattr
43 * rtattr
44 * ... (max count of rtattr is XFRM_MAX+1
45 *
46 * each rtattr data = struct xfrm_algo(dynamic size) or xfrm_address_t
47 */
48 #define NLMSG_BUF_SIZE 4096
49 #define RTA_BUF_SIZE 2048
50 #define XFRM_ALGO_KEY_BUF_SIZE 512
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 state { add | update } ID [ ALGO-LIST ] [ mode MODE ]\n");
58 fprintf(stderr, " [ mark MARK [ mask MASK ] ] [ reqid REQID ] [ seq SEQ ]\n");
59 fprintf(stderr, " [ replay-window SIZE ] [ replay-seq SEQ ] [ replay-oseq SEQ ]\n");
60 fprintf(stderr, " [ replay-seq-hi SEQ ] [ replay-oseq-hi SEQ ]\n");
61 fprintf(stderr, " [ flag FLAG-LIST ] [ sel SELECTOR ] [ LIMIT-LIST ] [ encap ENCAP ]\n");
62 fprintf(stderr, " [ coa ADDR[/PLEN] ] [ ctx CTX ] [ extra-flag EXTRA-FLAG-LIST ]\n");
63 fprintf(stderr, " [ offload [dev DEV] dir DIR ]\n");
64 fprintf(stderr, " [ output-mark OUTPUT-MARK ]\n");
65 fprintf(stderr, "Usage: ip xfrm state allocspi ID [ mode MODE ] [ mark MARK [ mask MASK ] ]\n");
66 fprintf(stderr, " [ reqid REQID ] [ seq SEQ ] [ min SPI max SPI ]\n");
67 fprintf(stderr, "Usage: ip xfrm state { delete | get } ID [ mark MARK [ mask MASK ] ]\n");
68 fprintf(stderr, "Usage: ip xfrm state deleteall [ ID ] [ mode MODE ] [ reqid REQID ]\n");
69 fprintf(stderr, " [ flag FLAG-LIST ]\n");
70 fprintf(stderr, "Usage: ip xfrm state list [ nokeys ] [ ID ] [ mode MODE ] [ reqid REQID ]\n");
71 fprintf(stderr, " [ flag FLAG-LIST ]\n");
72 fprintf(stderr, "Usage: ip xfrm state flush [ proto XFRM-PROTO ]\n");
73 fprintf(stderr, "Usage: ip xfrm state count\n");
74 fprintf(stderr, "ID := [ src ADDR ] [ dst ADDR ] [ proto XFRM-PROTO ] [ spi SPI ]\n");
75 fprintf(stderr, "XFRM-PROTO := ");
76 fprintf(stderr, "%s | ", strxf_xfrmproto(IPPROTO_ESP));
77 fprintf(stderr, "%s | ", strxf_xfrmproto(IPPROTO_AH));
78 fprintf(stderr, "%s | ", strxf_xfrmproto(IPPROTO_COMP));
79 fprintf(stderr, "%s | ", strxf_xfrmproto(IPPROTO_ROUTING));
80 fprintf(stderr, "%s\n", strxf_xfrmproto(IPPROTO_DSTOPTS));
81 fprintf(stderr, "ALGO-LIST := [ ALGO-LIST ] ALGO\n");
82 fprintf(stderr, "ALGO := { ");
83 fprintf(stderr, "%s | ", strxf_algotype(XFRMA_ALG_CRYPT));
84 fprintf(stderr, "%s", strxf_algotype(XFRMA_ALG_AUTH));
85 fprintf(stderr, " } ALGO-NAME ALGO-KEYMAT |\n");
86 fprintf(stderr, " %s", strxf_algotype(XFRMA_ALG_AUTH_TRUNC));
87 fprintf(stderr, " ALGO-NAME ALGO-KEYMAT ALGO-TRUNC-LEN |\n");
88 fprintf(stderr, " %s", strxf_algotype(XFRMA_ALG_AEAD));
89 fprintf(stderr, " ALGO-NAME ALGO-KEYMAT ALGO-ICV-LEN |\n");
90 fprintf(stderr, " %s", strxf_algotype(XFRMA_ALG_COMP));
91 fprintf(stderr, " ALGO-NAME\n");
92 fprintf(stderr, "MODE := transport | tunnel | beet | ro | in_trigger\n");
93 fprintf(stderr, "FLAG-LIST := [ FLAG-LIST ] FLAG\n");
94 fprintf(stderr, "FLAG := noecn | decap-dscp | nopmtudisc | wildrecv | icmp | af-unspec | align4 | esn\n");
95 fprintf(stderr, "EXTRA-FLAG-LIST := [ EXTRA-FLAG-LIST ] EXTRA-FLAG\n");
96 fprintf(stderr, "EXTRA-FLAG := dont-encap-dscp\n");
97 fprintf(stderr, "SELECTOR := [ src ADDR[/PLEN] ] [ dst ADDR[/PLEN] ] [ dev DEV ] [ UPSPEC ]\n");
98 fprintf(stderr, "UPSPEC := proto { { ");
99 fprintf(stderr, "%s | ", strxf_proto(IPPROTO_TCP));
100 fprintf(stderr, "%s | ", strxf_proto(IPPROTO_UDP));
101 fprintf(stderr, "%s | ", strxf_proto(IPPROTO_SCTP));
102 fprintf(stderr, "%s", strxf_proto(IPPROTO_DCCP));
103 fprintf(stderr, " } [ sport PORT ] [ dport PORT ] |\n");
104 fprintf(stderr, " { ");
105 fprintf(stderr, "%s | ", strxf_proto(IPPROTO_ICMP));
106 fprintf(stderr, "%s | ", strxf_proto(IPPROTO_ICMPV6));
107 fprintf(stderr, "%s", strxf_proto(IPPROTO_MH));
108 fprintf(stderr, " } [ type NUMBER ] [ code NUMBER ] |\n");
109 fprintf(stderr, " %s", strxf_proto(IPPROTO_GRE));
110 fprintf(stderr, " [ key { DOTTED-QUAD | NUMBER } ] | PROTO }\n");
111 fprintf(stderr, "LIMIT-LIST := [ LIMIT-LIST ] limit LIMIT\n");
112 fprintf(stderr, "LIMIT := { time-soft | time-hard | time-use-soft | time-use-hard } SECONDS |\n");
113 fprintf(stderr, " { byte-soft | byte-hard } SIZE | { packet-soft | packet-hard } COUNT\n");
114 fprintf(stderr, "ENCAP := { espinudp | espinudp-nonike } SPORT DPORT OADDR\n");
115 fprintf(stderr, "DIR := in | out\n");
116
117 exit(-1);
118 }
119
120 static int xfrm_algo_parse(struct xfrm_algo *alg, enum xfrm_attr_type_t type,
121 char *name, char *key, char *buf, int max)
122 {
123 int len;
124 int slen = strlen(key);
125
126 #if 0
127 /* XXX: verifying both name and key is required! */
128 fprintf(stderr, "warning: ALGO-NAME/ALGO-KEYMAT values will be sent to the kernel promiscuously! (verifying them isn't implemented yet)\n");
129 #endif
130
131 strlcpy(alg->alg_name, name, sizeof(alg->alg_name));
132
133 if (slen > 2 && strncmp(key, "0x", 2) == 0) {
134 /* split two chars "0x" from the top */
135 char *p = key + 2;
136 int plen = slen - 2;
137 int i;
138 int j;
139
140 /* Converting hexadecimal numbered string into real key;
141 * Convert each two chars into one char(value). If number
142 * of the length is odd, add zero on the top for rounding.
143 */
144
145 /* calculate length of the converted values(real key) */
146 len = (plen + 1) / 2;
147 if (len > max)
148 invarg("ALGO-KEYMAT value makes buffer overflow\n", key);
149
150 for (i = -(plen % 2), j = 0; j < len; i += 2, j++) {
151 char vbuf[3];
152 __u8 val;
153
154 vbuf[0] = i >= 0 ? p[i] : '0';
155 vbuf[1] = p[i + 1];
156 vbuf[2] = '\0';
157
158 if (get_u8(&val, vbuf, 16))
159 invarg("ALGO-KEYMAT value is invalid", key);
160
161 buf[j] = val;
162 }
163 } else {
164 len = slen;
165 if (len > 0) {
166 if (len > max)
167 invarg("ALGO-KEYMAT value makes buffer overflow\n", key);
168
169 memcpy(buf, key, len);
170 }
171 }
172
173 alg->alg_key_len = len * 8;
174
175 return 0;
176 }
177
178 static int xfrm_seq_parse(__u32 *seq, int *argcp, char ***argvp)
179 {
180 int argc = *argcp;
181 char **argv = *argvp;
182
183 if (get_be32(seq, *argv, 0))
184 invarg("SEQ value is invalid", *argv);
185
186 *argcp = argc;
187 *argvp = argv;
188
189 return 0;
190 }
191
192 static int xfrm_state_flag_parse(__u8 *flags, int *argcp, char ***argvp)
193 {
194 int argc = *argcp;
195 char **argv = *argvp;
196 int len = strlen(*argv);
197
198 if (len > 2 && strncmp(*argv, "0x", 2) == 0) {
199 __u8 val = 0;
200
201 if (get_u8(&val, *argv, 16))
202 invarg("FLAG value is invalid", *argv);
203 *flags = val;
204 } else {
205 while (1) {
206 if (strcmp(*argv, "noecn") == 0)
207 *flags |= XFRM_STATE_NOECN;
208 else if (strcmp(*argv, "decap-dscp") == 0)
209 *flags |= XFRM_STATE_DECAP_DSCP;
210 else if (strcmp(*argv, "nopmtudisc") == 0)
211 *flags |= XFRM_STATE_NOPMTUDISC;
212 else if (strcmp(*argv, "wildrecv") == 0)
213 *flags |= XFRM_STATE_WILDRECV;
214 else if (strcmp(*argv, "icmp") == 0)
215 *flags |= XFRM_STATE_ICMP;
216 else if (strcmp(*argv, "af-unspec") == 0)
217 *flags |= XFRM_STATE_AF_UNSPEC;
218 else if (strcmp(*argv, "align4") == 0)
219 *flags |= XFRM_STATE_ALIGN4;
220 else if (strcmp(*argv, "esn") == 0)
221 *flags |= XFRM_STATE_ESN;
222 else {
223 PREV_ARG(); /* back track */
224 break;
225 }
226
227 if (!NEXT_ARG_OK())
228 break;
229 NEXT_ARG();
230 }
231 }
232
233 *argcp = argc;
234 *argvp = argv;
235
236 return 0;
237 }
238
239 static int xfrm_state_extra_flag_parse(__u32 *extra_flags, int *argcp, char ***argvp)
240 {
241 int argc = *argcp;
242 char **argv = *argvp;
243 int len = strlen(*argv);
244
245 if (len > 2 && strncmp(*argv, "0x", 2) == 0) {
246 __u32 val = 0;
247
248 if (get_u32(&val, *argv, 16))
249 invarg("\"EXTRA-FLAG\" is invalid", *argv);
250 *extra_flags = val;
251 } else {
252 while (1) {
253 if (strcmp(*argv, "dont-encap-dscp") == 0)
254 *extra_flags |= XFRM_SA_XFLAG_DONT_ENCAP_DSCP;
255 else {
256 PREV_ARG(); /* back track */
257 break;
258 }
259
260 if (!NEXT_ARG_OK())
261 break;
262 NEXT_ARG();
263 }
264 }
265
266 *argcp = argc;
267 *argvp = argv;
268
269 return 0;
270 }
271
272 static int xfrm_offload_dir_parse(__u8 *dir, int *argcp, char ***argvp)
273 {
274 int argc = *argcp;
275 char **argv = *argvp;
276
277 if (strcmp(*argv, "in") == 0)
278 *dir = XFRM_OFFLOAD_INBOUND;
279 else if (strcmp(*argv, "out") == 0)
280 *dir = 0;
281 else
282 invarg("DIR value is invalid", *argv);
283
284 *argcp = argc;
285 *argvp = argv;
286
287 return 0;
288 }
289
290 static int xfrm_state_modify(int cmd, unsigned int flags, int argc, char **argv)
291 {
292 struct rtnl_handle rth;
293 struct {
294 struct nlmsghdr n;
295 struct xfrm_usersa_info xsinfo;
296 char buf[RTA_BUF_SIZE];
297 } req = {
298 .n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xsinfo)),
299 .n.nlmsg_flags = NLM_F_REQUEST | flags,
300 .n.nlmsg_type = cmd,
301 .xsinfo.family = preferred_family,
302 .xsinfo.lft.soft_byte_limit = XFRM_INF,
303 .xsinfo.lft.hard_byte_limit = XFRM_INF,
304 .xsinfo.lft.soft_packet_limit = XFRM_INF,
305 .xsinfo.lft.hard_packet_limit = XFRM_INF,
306 };
307 struct xfrm_replay_state replay = {};
308 struct xfrm_replay_state_esn replay_esn = {};
309 struct xfrm_user_offload xuo = {};
310 unsigned int ifindex = 0;
311 __u8 dir = 0;
312 bool is_offload = false;
313 __u32 replay_window = 0;
314 __u32 seq = 0, oseq = 0, seq_hi = 0, oseq_hi = 0;
315 char *idp = NULL;
316 char *aeadop = NULL;
317 char *ealgop = NULL;
318 char *aalgop = NULL;
319 char *calgop = NULL;
320 char *coap = NULL;
321 char *sctxp = NULL;
322 __u32 extra_flags = 0;
323 struct xfrm_mark mark = {0, 0};
324 struct {
325 struct xfrm_user_sec_ctx sctx;
326 char str[CTX_BUF_SIZE];
327 } ctx = {};
328 __u32 output_mark = 0;
329
330 while (argc > 0) {
331 if (strcmp(*argv, "mode") == 0) {
332 NEXT_ARG();
333 xfrm_mode_parse(&req.xsinfo.mode, &argc, &argv);
334 } else if (strcmp(*argv, "mark") == 0) {
335 xfrm_parse_mark(&mark, &argc, &argv);
336 } else if (strcmp(*argv, "reqid") == 0) {
337 NEXT_ARG();
338 xfrm_reqid_parse(&req.xsinfo.reqid, &argc, &argv);
339 } else if (strcmp(*argv, "seq") == 0) {
340 NEXT_ARG();
341 xfrm_seq_parse(&req.xsinfo.seq, &argc, &argv);
342 } else if (strcmp(*argv, "replay-window") == 0) {
343 NEXT_ARG();
344 if (get_u32(&replay_window, *argv, 0))
345 invarg("value after \"replay-window\" is invalid", *argv);
346 } else if (strcmp(*argv, "replay-seq") == 0) {
347 NEXT_ARG();
348 if (get_u32(&seq, *argv, 0))
349 invarg("value after \"replay-seq\" is invalid", *argv);
350 } else if (strcmp(*argv, "replay-seq-hi") == 0) {
351 NEXT_ARG();
352 if (get_u32(&seq_hi, *argv, 0))
353 invarg("value after \"replay-seq-hi\" is invalid", *argv);
354 } else if (strcmp(*argv, "replay-oseq") == 0) {
355 NEXT_ARG();
356 if (get_u32(&oseq, *argv, 0))
357 invarg("value after \"replay-oseq\" is invalid", *argv);
358 } else if (strcmp(*argv, "replay-oseq-hi") == 0) {
359 NEXT_ARG();
360 if (get_u32(&oseq_hi, *argv, 0))
361 invarg("value after \"replay-oseq-hi\" is invalid", *argv);
362 } else if (strcmp(*argv, "flag") == 0) {
363 NEXT_ARG();
364 xfrm_state_flag_parse(&req.xsinfo.flags, &argc, &argv);
365 } else if (strcmp(*argv, "extra-flag") == 0) {
366 NEXT_ARG();
367 xfrm_state_extra_flag_parse(&extra_flags, &argc, &argv);
368 } else if (strcmp(*argv, "sel") == 0) {
369 NEXT_ARG();
370 preferred_family = AF_UNSPEC;
371 xfrm_selector_parse(&req.xsinfo.sel, &argc, &argv);
372 preferred_family = req.xsinfo.sel.family;
373 } else if (strcmp(*argv, "limit") == 0) {
374 NEXT_ARG();
375 xfrm_lifetime_cfg_parse(&req.xsinfo.lft, &argc, &argv);
376 } else if (strcmp(*argv, "encap") == 0) {
377 struct xfrm_encap_tmpl encap;
378 inet_prefix oa;
379 NEXT_ARG();
380 xfrm_encap_type_parse(&encap.encap_type, &argc, &argv);
381 NEXT_ARG();
382 if (get_be16(&encap.encap_sport, *argv, 0))
383 invarg("SPORT value after \"encap\" is invalid", *argv);
384 NEXT_ARG();
385 if (get_be16(&encap.encap_dport, *argv, 0))
386 invarg("DPORT value after \"encap\" is invalid", *argv);
387 NEXT_ARG();
388 get_addr(&oa, *argv, AF_UNSPEC);
389 memcpy(&encap.encap_oa, &oa.data, sizeof(encap.encap_oa));
390 addattr_l(&req.n, sizeof(req.buf), XFRMA_ENCAP,
391 (void *)&encap, sizeof(encap));
392 } else if (strcmp(*argv, "coa") == 0) {
393 inet_prefix coa;
394 xfrm_address_t xcoa = {};
395
396 if (coap)
397 duparg("coa", *argv);
398 coap = *argv;
399
400 NEXT_ARG();
401
402 get_prefix(&coa, *argv, preferred_family);
403 if (coa.family == AF_UNSPEC)
404 invarg("value after \"coa\" has an unrecognized address family", *argv);
405 if (coa.bytelen > sizeof(xcoa))
406 invarg("value after \"coa\" is too large", *argv);
407
408 memcpy(&xcoa, &coa.data, coa.bytelen);
409
410 addattr_l(&req.n, sizeof(req.buf), XFRMA_COADDR,
411 (void *)&xcoa, sizeof(xcoa));
412 } else if (strcmp(*argv, "ctx") == 0) {
413 char *context;
414
415 if (sctxp)
416 duparg("ctx", *argv);
417 sctxp = *argv;
418
419 NEXT_ARG();
420 context = *argv;
421
422 xfrm_sctx_parse((char *)&ctx.str, context, &ctx.sctx);
423 addattr_l(&req.n, sizeof(req.buf), XFRMA_SEC_CTX,
424 (void *)&ctx, ctx.sctx.len);
425 } else if (strcmp(*argv, "offload") == 0) {
426 is_offload = true;
427 NEXT_ARG();
428 if (strcmp(*argv, "dev") == 0) {
429 NEXT_ARG();
430 ifindex = ll_name_to_index(*argv);
431 if (!ifindex) {
432 invarg("value after \"offload dev\" is invalid", *argv);
433 is_offload = false;
434 }
435 NEXT_ARG();
436 }
437 if (strcmp(*argv, "dir") == 0) {
438 NEXT_ARG();
439 xfrm_offload_dir_parse(&dir, &argc, &argv);
440 } else {
441 invarg("value after \"offload dir\" is invalid", *argv);
442 is_offload = false;
443 }
444 } else if (strcmp(*argv, "output-mark") == 0) {
445 NEXT_ARG();
446 if (get_u32(&output_mark, *argv, 0))
447 invarg("value after \"output-mark\" is invalid", *argv);
448 } else {
449 /* try to assume ALGO */
450 int type = xfrm_algotype_getbyname(*argv);
451
452 switch (type) {
453 case XFRMA_ALG_AEAD:
454 case XFRMA_ALG_CRYPT:
455 case XFRMA_ALG_AUTH:
456 case XFRMA_ALG_AUTH_TRUNC:
457 case XFRMA_ALG_COMP:
458 {
459 /* ALGO */
460 struct {
461 union {
462 struct xfrm_algo alg;
463 struct xfrm_algo_aead aead;
464 struct xfrm_algo_auth auth;
465 } u;
466 char buf[XFRM_ALGO_KEY_BUF_SIZE];
467 } alg = {};
468 int len;
469 __u32 icvlen, trunclen;
470 char *name;
471 char *key = "";
472 char *buf;
473
474 switch (type) {
475 case XFRMA_ALG_AEAD:
476 if (ealgop || aalgop || aeadop)
477 duparg("ALGO-TYPE", *argv);
478 aeadop = *argv;
479 break;
480 case XFRMA_ALG_CRYPT:
481 if (ealgop || aeadop)
482 duparg("ALGO-TYPE", *argv);
483 ealgop = *argv;
484 break;
485 case XFRMA_ALG_AUTH:
486 case XFRMA_ALG_AUTH_TRUNC:
487 if (aalgop || aeadop)
488 duparg("ALGO-TYPE", *argv);
489 aalgop = *argv;
490 break;
491 case XFRMA_ALG_COMP:
492 if (calgop)
493 duparg("ALGO-TYPE", *argv);
494 calgop = *argv;
495 break;
496 default:
497 /* not reached */
498 invarg("ALGO-TYPE value is invalid\n", *argv);
499 }
500
501 if (!NEXT_ARG_OK())
502 missarg("ALGO-NAME");
503 NEXT_ARG();
504 name = *argv;
505
506 switch (type) {
507 case XFRMA_ALG_AEAD:
508 case XFRMA_ALG_CRYPT:
509 case XFRMA_ALG_AUTH:
510 case XFRMA_ALG_AUTH_TRUNC:
511 if (!NEXT_ARG_OK())
512 missarg("ALGO-KEYMAT");
513 NEXT_ARG();
514 key = *argv;
515 break;
516 }
517
518 buf = alg.u.alg.alg_key;
519 len = sizeof(alg.u.alg);
520
521 switch (type) {
522 case XFRMA_ALG_AEAD:
523 if (!NEXT_ARG_OK())
524 missarg("ALGO-ICV-LEN");
525 NEXT_ARG();
526 if (get_u32(&icvlen, *argv, 0))
527 invarg("ALGO-ICV-LEN value is invalid",
528 *argv);
529 alg.u.aead.alg_icv_len = icvlen;
530
531 buf = alg.u.aead.alg_key;
532 len = sizeof(alg.u.aead);
533 break;
534 case XFRMA_ALG_AUTH_TRUNC:
535 if (!NEXT_ARG_OK())
536 missarg("ALGO-TRUNC-LEN");
537 NEXT_ARG();
538 if (get_u32(&trunclen, *argv, 0))
539 invarg("ALGO-TRUNC-LEN value is invalid",
540 *argv);
541 alg.u.auth.alg_trunc_len = trunclen;
542
543 buf = alg.u.auth.alg_key;
544 len = sizeof(alg.u.auth);
545 break;
546 }
547
548 xfrm_algo_parse((void *)&alg, type, name, key,
549 buf, sizeof(alg.buf));
550 len += alg.u.alg.alg_key_len / 8;
551
552 addattr_l(&req.n, sizeof(req.buf), type,
553 (void *)&alg, len);
554 break;
555 }
556 default:
557 /* try to assume ID */
558 if (idp)
559 invarg("unknown", *argv);
560 idp = *argv;
561
562 /* ID */
563 xfrm_id_parse(&req.xsinfo.saddr, &req.xsinfo.id,
564 &req.xsinfo.family, 0, &argc, &argv);
565 if (preferred_family == AF_UNSPEC)
566 preferred_family = req.xsinfo.family;
567 }
568 }
569 argc--; argv++;
570 }
571
572 if (req.xsinfo.flags & XFRM_STATE_ESN &&
573 replay_window == 0) {
574 fprintf(stderr, "Error: esn flag set without replay-window.\n");
575 exit(-1);
576 }
577
578 if (replay_window > XFRMA_REPLAY_ESN_MAX) {
579 fprintf(stderr,
580 "Error: replay-window (%u) > XFRMA_REPLAY_ESN_MAX (%u).\n",
581 replay_window, XFRMA_REPLAY_ESN_MAX);
582 exit(-1);
583 }
584
585 if (is_offload) {
586 xuo.ifindex = ifindex;
587 xuo.flags = dir;
588 addattr_l(&req.n, sizeof(req.buf), XFRMA_OFFLOAD_DEV, &xuo,
589 sizeof(xuo));
590 }
591 if (req.xsinfo.flags & XFRM_STATE_ESN ||
592 replay_window > (sizeof(replay.bitmap) * 8)) {
593 replay_esn.seq = seq;
594 replay_esn.oseq = oseq;
595 replay_esn.seq_hi = seq_hi;
596 replay_esn.oseq_hi = oseq_hi;
597 replay_esn.replay_window = replay_window;
598 replay_esn.bmp_len = (replay_window + sizeof(__u32) * 8 - 1) /
599 (sizeof(__u32) * 8);
600 addattr_l(&req.n, sizeof(req.buf), XFRMA_REPLAY_ESN_VAL,
601 &replay_esn, sizeof(replay_esn));
602 } else {
603 if (seq || oseq) {
604 replay.seq = seq;
605 replay.oseq = oseq;
606 addattr_l(&req.n, sizeof(req.buf), XFRMA_REPLAY_VAL,
607 &replay, sizeof(replay));
608 }
609 req.xsinfo.replay_window = replay_window;
610 }
611
612 if (extra_flags)
613 addattr32(&req.n, sizeof(req.buf), XFRMA_SA_EXTRA_FLAGS,
614 extra_flags);
615
616 if (!idp) {
617 fprintf(stderr, "Not enough information: ID is required\n");
618 exit(1);
619 }
620
621 if (mark.m) {
622 int r = addattr_l(&req.n, sizeof(req.buf), XFRMA_MARK,
623 (void *)&mark, sizeof(mark));
624 if (r < 0) {
625 fprintf(stderr, "XFRMA_MARK failed\n");
626 exit(1);
627 }
628 }
629
630 if (xfrm_xfrmproto_is_ipsec(req.xsinfo.id.proto)) {
631 switch (req.xsinfo.mode) {
632 case XFRM_MODE_TRANSPORT:
633 case XFRM_MODE_TUNNEL:
634 break;
635 case XFRM_MODE_BEET:
636 if (req.xsinfo.id.proto == IPPROTO_ESP)
637 break;
638 default:
639 fprintf(stderr, "MODE value is invalid with XFRM-PROTO value \"%s\"\n",
640 strxf_xfrmproto(req.xsinfo.id.proto));
641 exit(1);
642 }
643
644 switch (req.xsinfo.id.proto) {
645 case IPPROTO_ESP:
646 if (calgop) {
647 fprintf(stderr, "ALGO-TYPE value \"%s\" is invalid with XFRM-PROTO value \"%s\"\n",
648 strxf_algotype(XFRMA_ALG_COMP),
649 strxf_xfrmproto(req.xsinfo.id.proto));
650 exit(1);
651 }
652 if (!ealgop && !aeadop) {
653 fprintf(stderr, "ALGO-TYPE value \"%s\" or \"%s\" is required with XFRM-PROTO value \"%s\"\n",
654 strxf_algotype(XFRMA_ALG_CRYPT),
655 strxf_algotype(XFRMA_ALG_AEAD),
656 strxf_xfrmproto(req.xsinfo.id.proto));
657 exit(1);
658 }
659 break;
660 case IPPROTO_AH:
661 if (ealgop || aeadop || calgop) {
662 fprintf(stderr, "ALGO-TYPE values \"%s\", \"%s\", and \"%s\" are invalid with XFRM-PROTO value \"%s\"\n",
663 strxf_algotype(XFRMA_ALG_CRYPT),
664 strxf_algotype(XFRMA_ALG_AEAD),
665 strxf_algotype(XFRMA_ALG_COMP),
666 strxf_xfrmproto(req.xsinfo.id.proto));
667 exit(1);
668 }
669 if (!aalgop) {
670 fprintf(stderr, "ALGO-TYPE value \"%s\" or \"%s\" is required with XFRM-PROTO value \"%s\"\n",
671 strxf_algotype(XFRMA_ALG_AUTH),
672 strxf_algotype(XFRMA_ALG_AUTH_TRUNC),
673 strxf_xfrmproto(req.xsinfo.id.proto));
674 exit(1);
675 }
676 break;
677 case IPPROTO_COMP:
678 if (ealgop || aalgop || aeadop) {
679 fprintf(stderr, "ALGO-TYPE values \"%s\", \"%s\", \"%s\", and \"%s\" are invalid with XFRM-PROTO value \"%s\"\n",
680 strxf_algotype(XFRMA_ALG_CRYPT),
681 strxf_algotype(XFRMA_ALG_AUTH),
682 strxf_algotype(XFRMA_ALG_AUTH_TRUNC),
683 strxf_algotype(XFRMA_ALG_AEAD),
684 strxf_xfrmproto(req.xsinfo.id.proto));
685 exit(1);
686 }
687 if (!calgop) {
688 fprintf(stderr, "ALGO-TYPE value \"%s\" is required with XFRM-PROTO value \"%s\"\n",
689 strxf_algotype(XFRMA_ALG_COMP),
690 strxf_xfrmproto(req.xsinfo.id.proto));
691 exit(1);
692 }
693 break;
694 }
695 } else {
696 if (ealgop || aalgop || aeadop || calgop) {
697 fprintf(stderr, "ALGO is invalid with XFRM-PROTO value \"%s\"\n",
698 strxf_xfrmproto(req.xsinfo.id.proto));
699 exit(1);
700 }
701 }
702
703 if (xfrm_xfrmproto_is_ro(req.xsinfo.id.proto)) {
704 switch (req.xsinfo.mode) {
705 case XFRM_MODE_ROUTEOPTIMIZATION:
706 case XFRM_MODE_IN_TRIGGER:
707 break;
708 case 0:
709 fprintf(stderr, "\"mode\" is required with XFRM-PROTO value \"%s\"\n",
710 strxf_xfrmproto(req.xsinfo.id.proto));
711 exit(1);
712 default:
713 fprintf(stderr, "MODE value is invalid with XFRM-PROTO value \"%s\"\n",
714 strxf_xfrmproto(req.xsinfo.id.proto));
715 exit(1);
716 }
717
718 if (!coap) {
719 fprintf(stderr, "\"coa\" is required with XFRM-PROTO value \"%s\"\n",
720 strxf_xfrmproto(req.xsinfo.id.proto));
721 exit(1);
722 }
723 } else {
724 if (coap) {
725 fprintf(stderr, "\"coa\" is invalid with XFRM-PROTO value \"%s\"\n",
726 strxf_xfrmproto(req.xsinfo.id.proto));
727 exit(1);
728 }
729 }
730
731 if (output_mark)
732 addattr32(&req.n, sizeof(req.buf), XFRMA_OUTPUT_MARK, output_mark);
733
734 if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
735 exit(1);
736
737 if (req.xsinfo.family == AF_UNSPEC)
738 req.xsinfo.family = AF_INET;
739
740 if (rtnl_talk(&rth, &req.n, NULL) < 0)
741 exit(2);
742
743 rtnl_close(&rth);
744
745 return 0;
746 }
747
748 static int xfrm_state_allocspi(int argc, char **argv)
749 {
750 struct rtnl_handle rth;
751 struct {
752 struct nlmsghdr n;
753 struct xfrm_userspi_info xspi;
754 char buf[RTA_BUF_SIZE];
755 } req = {
756 .n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xspi)),
757 .n.nlmsg_flags = NLM_F_REQUEST,
758 .n.nlmsg_type = XFRM_MSG_ALLOCSPI,
759 .xspi.info.family = preferred_family,
760 #if 0
761 .xspi.lft.soft_byte_limit = XFRM_INF,
762 .xspi.lft.hard_byte_limit = XFRM_INF,
763 .xspi.lft.soft_packet_limit = XFRM_INF,
764 .xspi.lft.hard_packet_limit = XFRM_INF,
765 #endif
766 };
767 char *idp = NULL;
768 char *minp = NULL;
769 char *maxp = NULL;
770 struct xfrm_mark mark = {0, 0};
771 struct nlmsghdr *answer;
772
773 while (argc > 0) {
774 if (strcmp(*argv, "mode") == 0) {
775 NEXT_ARG();
776 xfrm_mode_parse(&req.xspi.info.mode, &argc, &argv);
777 } else if (strcmp(*argv, "mark") == 0) {
778 xfrm_parse_mark(&mark, &argc, &argv);
779 } else if (strcmp(*argv, "reqid") == 0) {
780 NEXT_ARG();
781 xfrm_reqid_parse(&req.xspi.info.reqid, &argc, &argv);
782 } else if (strcmp(*argv, "seq") == 0) {
783 NEXT_ARG();
784 xfrm_seq_parse(&req.xspi.info.seq, &argc, &argv);
785 } else if (strcmp(*argv, "min") == 0) {
786 if (minp)
787 duparg("min", *argv);
788 minp = *argv;
789
790 NEXT_ARG();
791
792 if (get_u32(&req.xspi.min, *argv, 0))
793 invarg("value after \"min\" is invalid", *argv);
794 } else if (strcmp(*argv, "max") == 0) {
795 if (maxp)
796 duparg("max", *argv);
797 maxp = *argv;
798
799 NEXT_ARG();
800
801 if (get_u32(&req.xspi.max, *argv, 0))
802 invarg("value after \"max\" is invalid", *argv);
803 } else {
804 /* try to assume ID */
805 if (idp)
806 invarg("unknown", *argv);
807 idp = *argv;
808
809 /* ID */
810 xfrm_id_parse(&req.xspi.info.saddr, &req.xspi.info.id,
811 &req.xspi.info.family, 0, &argc, &argv);
812 if (req.xspi.info.id.spi) {
813 fprintf(stderr, "\"spi\" is invalid\n");
814 exit(1);
815 }
816 if (preferred_family == AF_UNSPEC)
817 preferred_family = req.xspi.info.family;
818 }
819 argc--; argv++;
820 }
821
822 if (!idp) {
823 fprintf(stderr, "Not enough information: ID is required\n");
824 exit(1);
825 }
826
827 if (minp) {
828 if (!maxp) {
829 fprintf(stderr, "\"max\" is missing\n");
830 exit(1);
831 }
832 if (req.xspi.min > req.xspi.max) {
833 fprintf(stderr, "value after \"min\" is larger than value after \"max\"\n");
834 exit(1);
835 }
836 } else {
837 if (maxp) {
838 fprintf(stderr, "\"min\" is missing\n");
839 exit(1);
840 }
841
842 /* XXX: Default value defined in PF_KEY;
843 * See kernel's net/key/af_key.c(pfkey_getspi).
844 */
845 req.xspi.min = 0x100;
846 req.xspi.max = 0x0fffffff;
847
848 /* XXX: IPCOMP spi is 16-bits;
849 * See kernel's net/xfrm/xfrm_user(verify_userspi_info).
850 */
851 if (req.xspi.info.id.proto == IPPROTO_COMP)
852 req.xspi.max = 0xffff;
853 }
854
855 if (mark.m & mark.v) {
856 int r = addattr_l(&req.n, sizeof(req.buf), XFRMA_MARK,
857 (void *)&mark, sizeof(mark));
858 if (r < 0) {
859 fprintf(stderr, "XFRMA_MARK failed\n");
860 exit(1);
861 }
862 }
863
864 if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
865 exit(1);
866
867 if (req.xspi.info.family == AF_UNSPEC)
868 req.xspi.info.family = AF_INET;
869
870
871 if (rtnl_talk(&rth, &req.n, &answer) < 0)
872 exit(2);
873
874 if (xfrm_state_print(answer, (void *)stdout) < 0) {
875 fprintf(stderr, "An error :-)\n");
876 exit(1);
877 }
878
879 free(answer);
880 rtnl_close(&rth);
881
882 return 0;
883 }
884
885 static int xfrm_state_filter_match(struct xfrm_usersa_info *xsinfo)
886 {
887 if (!filter.use)
888 return 1;
889
890 if (filter.id_src_mask)
891 if (xfrm_addr_match(&xsinfo->saddr, &filter.xsinfo.saddr,
892 filter.id_src_mask))
893 return 0;
894 if (filter.id_dst_mask)
895 if (xfrm_addr_match(&xsinfo->id.daddr, &filter.xsinfo.id.daddr,
896 filter.id_dst_mask))
897 return 0;
898 if ((xsinfo->id.proto^filter.xsinfo.id.proto)&filter.id_proto_mask)
899 return 0;
900 if ((xsinfo->id.spi^filter.xsinfo.id.spi)&filter.id_spi_mask)
901 return 0;
902 if ((xsinfo->mode^filter.xsinfo.mode)&filter.mode_mask)
903 return 0;
904 if ((xsinfo->reqid^filter.xsinfo.reqid)&filter.reqid_mask)
905 return 0;
906 if (filter.state_flags_mask)
907 if ((xsinfo->flags & filter.xsinfo.flags) == 0)
908 return 0;
909
910 return 1;
911 }
912
913 static int __do_xfrm_state_print(struct nlmsghdr *n, void *arg, bool nokeys)
914 {
915 FILE *fp = (FILE *)arg;
916 struct rtattr *tb[XFRMA_MAX+1];
917 struct rtattr *rta;
918 struct xfrm_usersa_info *xsinfo = NULL;
919 struct xfrm_user_expire *xexp = NULL;
920 struct xfrm_usersa_id *xsid = NULL;
921 int len = n->nlmsg_len;
922
923 if (n->nlmsg_type != XFRM_MSG_NEWSA &&
924 n->nlmsg_type != XFRM_MSG_DELSA &&
925 n->nlmsg_type != XFRM_MSG_UPDSA &&
926 n->nlmsg_type != XFRM_MSG_EXPIRE) {
927 fprintf(stderr, "Not a state: %08x %08x %08x\n",
928 n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
929 return 0;
930 }
931
932 if (n->nlmsg_type == XFRM_MSG_DELSA) {
933 /* Don't blame me for this .. Herbert made me do it */
934 xsid = NLMSG_DATA(n);
935 len -= NLMSG_SPACE(sizeof(*xsid));
936 } else if (n->nlmsg_type == XFRM_MSG_EXPIRE) {
937 xexp = NLMSG_DATA(n);
938 xsinfo = &xexp->state;
939 len -= NLMSG_SPACE(sizeof(*xexp));
940 } else {
941 xexp = NULL;
942 xsinfo = NLMSG_DATA(n);
943 len -= NLMSG_SPACE(sizeof(*xsinfo));
944 }
945
946 if (len < 0) {
947 fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
948 return -1;
949 }
950
951 if (xsinfo && !xfrm_state_filter_match(xsinfo))
952 return 0;
953
954 if (n->nlmsg_type == XFRM_MSG_DELSA)
955 fprintf(fp, "Deleted ");
956 else if (n->nlmsg_type == XFRM_MSG_UPDSA)
957 fprintf(fp, "Updated ");
958 else if (n->nlmsg_type == XFRM_MSG_EXPIRE)
959 fprintf(fp, "Expired ");
960
961 if (n->nlmsg_type == XFRM_MSG_DELSA)
962 rta = XFRMSID_RTA(xsid);
963 else if (n->nlmsg_type == XFRM_MSG_EXPIRE)
964 rta = XFRMEXP_RTA(xexp);
965 else
966 rta = XFRMS_RTA(xsinfo);
967
968 parse_rtattr(tb, XFRMA_MAX, rta, len);
969
970 if (n->nlmsg_type == XFRM_MSG_DELSA) {
971 /* xfrm_policy_id_print(); */
972
973 if (!tb[XFRMA_SA]) {
974 fprintf(stderr, "Buggy XFRM_MSG_DELSA: no XFRMA_SA\n");
975 return -1;
976 }
977 if (RTA_PAYLOAD(tb[XFRMA_SA]) < sizeof(*xsinfo)) {
978 fprintf(stderr, "Buggy XFRM_MSG_DELPOLICY: too short XFRMA_POLICY len\n");
979 return -1;
980 }
981 xsinfo = RTA_DATA(tb[XFRMA_SA]);
982 }
983
984 xfrm_state_info_print(xsinfo, tb, fp, NULL, NULL, nokeys);
985
986 if (n->nlmsg_type == XFRM_MSG_EXPIRE) {
987 fprintf(fp, "\t");
988 fprintf(fp, "hard %u", xexp->hard);
989 fprintf(fp, "%s", _SL_);
990 }
991
992 if (oneline)
993 fprintf(fp, "\n");
994 fflush(fp);
995
996 return 0;
997 }
998
999 int xfrm_state_print(struct nlmsghdr *n, void *arg)
1000 {
1001 return __do_xfrm_state_print(n, arg, false);
1002 }
1003
1004 int xfrm_state_print_nokeys(struct nlmsghdr *n, void *arg)
1005 {
1006 return __do_xfrm_state_print(n, arg, true);
1007 }
1008
1009 static int xfrm_state_get_or_delete(int argc, char **argv, int delete)
1010 {
1011 struct rtnl_handle rth;
1012 struct {
1013 struct nlmsghdr n;
1014 struct xfrm_usersa_id xsid;
1015 char buf[RTA_BUF_SIZE];
1016 } req = {
1017 .n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xsid)),
1018 .n.nlmsg_flags = NLM_F_REQUEST,
1019 .n.nlmsg_type = delete ? XFRM_MSG_DELSA : XFRM_MSG_GETSA,
1020 .xsid.family = preferred_family,
1021 };
1022 struct xfrm_id id;
1023 char *idp = NULL;
1024 struct xfrm_mark mark = {0, 0};
1025
1026 while (argc > 0) {
1027 xfrm_address_t saddr;
1028
1029 if (strcmp(*argv, "mark") == 0) {
1030 xfrm_parse_mark(&mark, &argc, &argv);
1031 } else {
1032 if (idp)
1033 invarg("unknown", *argv);
1034 idp = *argv;
1035
1036 /* ID */
1037 memset(&id, 0, sizeof(id));
1038 memset(&saddr, 0, sizeof(saddr));
1039 xfrm_id_parse(&saddr, &id, &req.xsid.family, 0,
1040 &argc, &argv);
1041
1042 memcpy(&req.xsid.daddr, &id.daddr, sizeof(req.xsid.daddr));
1043 req.xsid.spi = id.spi;
1044 req.xsid.proto = id.proto;
1045
1046 addattr_l(&req.n, sizeof(req.buf), XFRMA_SRCADDR,
1047 (void *)&saddr, sizeof(saddr));
1048 }
1049
1050 argc--; argv++;
1051 }
1052
1053 if (mark.m & mark.v) {
1054 int r = addattr_l(&req.n, sizeof(req.buf), XFRMA_MARK,
1055 (void *)&mark, sizeof(mark));
1056 if (r < 0) {
1057 fprintf(stderr, "XFRMA_MARK failed\n");
1058 exit(1);
1059 }
1060 }
1061
1062 if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
1063 exit(1);
1064
1065 if (req.xsid.family == AF_UNSPEC)
1066 req.xsid.family = AF_INET;
1067
1068 if (delete) {
1069 if (rtnl_talk(&rth, &req.n, NULL) < 0)
1070 exit(2);
1071 } else {
1072 struct nlmsghdr *answer;
1073
1074 if (rtnl_talk(&rth, &req.n, &answer) < 0)
1075 exit(2);
1076
1077 if (xfrm_state_print(answer, (void *)stdout) < 0) {
1078 fprintf(stderr, "An error :-)\n");
1079 exit(1);
1080 }
1081
1082 free(answer);
1083 }
1084
1085 rtnl_close(&rth);
1086
1087 return 0;
1088 }
1089
1090 /*
1091 * With an existing state of nlmsg, make new nlmsg for deleting the state
1092 * and store it to buffer.
1093 */
1094 static int xfrm_state_keep(struct nlmsghdr *n, void *arg)
1095 {
1096 struct xfrm_buffer *xb = (struct xfrm_buffer *)arg;
1097 struct rtnl_handle *rth = xb->rth;
1098 struct xfrm_usersa_info *xsinfo = NLMSG_DATA(n);
1099 int len = n->nlmsg_len;
1100 struct nlmsghdr *new_n;
1101 struct xfrm_usersa_id *xsid;
1102 struct rtattr *tb[XFRMA_MAX+1];
1103
1104 if (n->nlmsg_type != XFRM_MSG_NEWSA) {
1105 fprintf(stderr, "Not a state: %08x %08x %08x\n",
1106 n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
1107 return 0;
1108 }
1109
1110 len -= NLMSG_LENGTH(sizeof(*xsinfo));
1111 if (len < 0) {
1112 fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
1113 return -1;
1114 }
1115
1116 if (!xfrm_state_filter_match(xsinfo))
1117 return 0;
1118
1119 if (xb->offset > xb->size) {
1120 fprintf(stderr, "State buffer overflow\n");
1121 return -1;
1122 }
1123
1124 new_n = (struct nlmsghdr *)(xb->buf + xb->offset);
1125 new_n->nlmsg_len = NLMSG_LENGTH(sizeof(*xsid));
1126 new_n->nlmsg_flags = NLM_F_REQUEST;
1127 new_n->nlmsg_type = XFRM_MSG_DELSA;
1128 new_n->nlmsg_seq = ++rth->seq;
1129
1130 xsid = NLMSG_DATA(new_n);
1131 xsid->family = xsinfo->family;
1132 memcpy(&xsid->daddr, &xsinfo->id.daddr, sizeof(xsid->daddr));
1133 xsid->spi = xsinfo->id.spi;
1134 xsid->proto = xsinfo->id.proto;
1135
1136 addattr_l(new_n, xb->size, XFRMA_SRCADDR, &xsinfo->saddr,
1137 sizeof(xsid->daddr));
1138
1139 parse_rtattr(tb, XFRMA_MAX, XFRMS_RTA(xsinfo), len);
1140
1141 if (tb[XFRMA_MARK]) {
1142 int r = addattr_l(new_n, xb->size, XFRMA_MARK,
1143 (void *)RTA_DATA(tb[XFRMA_MARK]), tb[XFRMA_MARK]->rta_len);
1144 if (r < 0) {
1145 fprintf(stderr, "%s: XFRMA_MARK failed\n", __func__);
1146 exit(1);
1147 }
1148 }
1149
1150 xb->offset += new_n->nlmsg_len;
1151 xb->nlmsg_count++;
1152
1153 return 0;
1154 }
1155
1156 static int xfrm_state_list_or_deleteall(int argc, char **argv, int deleteall)
1157 {
1158 char *idp = NULL;
1159 struct rtnl_handle rth;
1160 bool nokeys = false;
1161
1162 if (argc > 0)
1163 filter.use = 1;
1164 filter.xsinfo.family = preferred_family;
1165
1166 while (argc > 0) {
1167 if (strcmp(*argv, "nokeys") == 0) {
1168 nokeys = true;
1169 } else if (strcmp(*argv, "mode") == 0) {
1170 NEXT_ARG();
1171 xfrm_mode_parse(&filter.xsinfo.mode, &argc, &argv);
1172
1173 filter.mode_mask = XFRM_FILTER_MASK_FULL;
1174
1175 } else if (strcmp(*argv, "reqid") == 0) {
1176 NEXT_ARG();
1177 xfrm_reqid_parse(&filter.xsinfo.reqid, &argc, &argv);
1178
1179 filter.reqid_mask = XFRM_FILTER_MASK_FULL;
1180
1181 } else if (strcmp(*argv, "flag") == 0) {
1182 NEXT_ARG();
1183 xfrm_state_flag_parse(&filter.xsinfo.flags, &argc, &argv);
1184
1185 filter.state_flags_mask = XFRM_FILTER_MASK_FULL;
1186
1187 } else {
1188 if (idp)
1189 invarg("unknown", *argv);
1190 idp = *argv;
1191
1192 /* ID */
1193 xfrm_id_parse(&filter.xsinfo.saddr, &filter.xsinfo.id,
1194 &filter.xsinfo.family, 1, &argc, &argv);
1195 if (preferred_family == AF_UNSPEC)
1196 preferred_family = filter.xsinfo.family;
1197 }
1198 argc--; argv++;
1199 }
1200
1201 if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
1202 exit(1);
1203
1204 if (deleteall) {
1205 struct xfrm_buffer xb;
1206 char buf[NLMSG_DELETEALL_BUF_SIZE];
1207 int i;
1208
1209 xb.buf = buf;
1210 xb.size = sizeof(buf);
1211 xb.rth = &rth;
1212
1213 for (i = 0; ; i++) {
1214 struct {
1215 struct nlmsghdr n;
1216 char buf[NLMSG_BUF_SIZE];
1217 } req = {
1218 .n.nlmsg_len = NLMSG_HDRLEN,
1219 .n.nlmsg_flags = NLM_F_DUMP | NLM_F_REQUEST,
1220 .n.nlmsg_type = XFRM_MSG_GETSA,
1221 .n.nlmsg_seq = rth.dump = ++rth.seq,
1222 };
1223
1224 xb.offset = 0;
1225 xb.nlmsg_count = 0;
1226
1227 if (show_stats > 1)
1228 fprintf(stderr, "Delete-all round = %d\n", i);
1229
1230 if (rtnl_send(&rth, (void *)&req, req.n.nlmsg_len) < 0) {
1231 perror("Cannot send dump request");
1232 exit(1);
1233 }
1234
1235 if (rtnl_dump_filter(&rth, xfrm_state_keep, &xb) < 0) {
1236 fprintf(stderr, "Delete-all terminated\n");
1237 exit(1);
1238 }
1239 if (xb.nlmsg_count == 0) {
1240 if (show_stats > 1)
1241 fprintf(stderr, "Delete-all completed\n");
1242 break;
1243 }
1244
1245 if (rtnl_send_check(&rth, xb.buf, xb.offset) < 0) {
1246 perror("Failed to send delete-all request\n");
1247 exit(1);
1248 }
1249 if (show_stats > 1)
1250 fprintf(stderr, "Delete-all nlmsg count = %d\n", xb.nlmsg_count);
1251
1252 xb.offset = 0;
1253 xb.nlmsg_count = 0;
1254 }
1255
1256 } else {
1257 struct xfrm_address_filter addrfilter = {
1258 .saddr = filter.xsinfo.saddr,
1259 .daddr = filter.xsinfo.id.daddr,
1260 .family = filter.xsinfo.family,
1261 .splen = filter.id_src_mask,
1262 .dplen = filter.id_dst_mask,
1263 };
1264 struct {
1265 struct nlmsghdr n;
1266 char buf[NLMSG_BUF_SIZE];
1267 } req = {
1268 .n.nlmsg_len = NLMSG_HDRLEN,
1269 .n.nlmsg_flags = NLM_F_DUMP | NLM_F_REQUEST,
1270 .n.nlmsg_type = XFRM_MSG_GETSA,
1271 .n.nlmsg_seq = rth.dump = ++rth.seq,
1272 };
1273
1274 if (filter.xsinfo.id.proto)
1275 addattr8(&req.n, sizeof(req), XFRMA_PROTO,
1276 filter.xsinfo.id.proto);
1277 addattr_l(&req.n, sizeof(req), XFRMA_ADDRESS_FILTER,
1278 &addrfilter, sizeof(addrfilter));
1279
1280 if (rtnl_send(&rth, (void *)&req, req.n.nlmsg_len) < 0) {
1281 perror("Cannot send dump request");
1282 exit(1);
1283 }
1284
1285 rtnl_filter_t filter = nokeys ?
1286 xfrm_state_print_nokeys : xfrm_state_print;
1287 if (rtnl_dump_filter(&rth, filter, stdout) < 0) {
1288 fprintf(stderr, "Dump terminated\n");
1289 exit(1);
1290 }
1291 }
1292
1293 rtnl_close(&rth);
1294
1295 exit(0);
1296 }
1297
1298 static int print_sadinfo(struct nlmsghdr *n, void *arg)
1299 {
1300 FILE *fp = (FILE *)arg;
1301 __u32 *f = NLMSG_DATA(n);
1302 struct rtattr *tb[XFRMA_SAD_MAX+1];
1303 struct rtattr *rta;
1304 int len = n->nlmsg_len;
1305
1306 len -= NLMSG_LENGTH(sizeof(__u32));
1307 if (len < 0) {
1308 fprintf(stderr, "SADinfo: Wrong len %d\n", len);
1309 return -1;
1310 }
1311
1312 rta = XFRMSAPD_RTA(f);
1313 parse_rtattr(tb, XFRMA_SAD_MAX, rta, len);
1314
1315 if (tb[XFRMA_SAD_CNT]) {
1316 __u32 cnt;
1317
1318 fprintf(fp, "\t SAD");
1319 cnt = rta_getattr_u32(tb[XFRMA_SAD_CNT]);
1320 fprintf(fp, " count %u", cnt);
1321 } else {
1322 fprintf(fp, "BAD SAD info returned\n");
1323 return -1;
1324 }
1325
1326 if (show_stats) {
1327 if (tb[XFRMA_SAD_HINFO]) {
1328 struct xfrmu_sadhinfo *si;
1329
1330 if (RTA_PAYLOAD(tb[XFRMA_SAD_HINFO]) < sizeof(*si)) {
1331 fprintf(fp, "BAD SAD length returned\n");
1332 return -1;
1333 }
1334
1335 si = RTA_DATA(tb[XFRMA_SAD_HINFO]);
1336 fprintf(fp, " (buckets ");
1337 fprintf(fp, "count %d", si->sadhcnt);
1338 fprintf(fp, " Max %d", si->sadhmcnt);
1339 fprintf(fp, ")");
1340 }
1341 }
1342 fprintf(fp, "\n");
1343
1344 return 0;
1345 }
1346
1347 static int xfrm_sad_getinfo(int argc, char **argv)
1348 {
1349 struct rtnl_handle rth;
1350 struct {
1351 struct nlmsghdr n;
1352 __u32 flags;
1353 } req = {
1354 .n.nlmsg_len = NLMSG_LENGTH(sizeof(req.flags)),
1355 .n.nlmsg_flags = NLM_F_REQUEST,
1356 .n.nlmsg_type = XFRM_MSG_GETSADINFO,
1357 .flags = 0XFFFFFFFF,
1358 };
1359 struct nlmsghdr *answer;
1360
1361 if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
1362 exit(1);
1363
1364 if (rtnl_talk(&rth, &req.n, &answer) < 0)
1365 exit(2);
1366
1367 print_sadinfo(answer, (void *)stdout);
1368
1369 free(answer);
1370 rtnl_close(&rth);
1371
1372 return 0;
1373 }
1374
1375 static int xfrm_state_flush(int argc, char **argv)
1376 {
1377 struct rtnl_handle rth;
1378 struct {
1379 struct nlmsghdr n;
1380 struct xfrm_usersa_flush xsf;
1381 } req = {
1382 .n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xsf)),
1383 .n.nlmsg_flags = NLM_F_REQUEST,
1384 .n.nlmsg_type = XFRM_MSG_FLUSHSA,
1385 };
1386 char *protop = NULL;
1387
1388 while (argc > 0) {
1389 if (strcmp(*argv, "proto") == 0) {
1390 int ret;
1391
1392 if (protop)
1393 duparg("proto", *argv);
1394 protop = *argv;
1395
1396 NEXT_ARG();
1397
1398 ret = xfrm_xfrmproto_getbyname(*argv);
1399 if (ret < 0)
1400 invarg("XFRM-PROTO value is invalid", *argv);
1401
1402 req.xsf.proto = (__u8)ret;
1403 } else
1404 invarg("unknown", *argv);
1405
1406 argc--; argv++;
1407 }
1408
1409 if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
1410 exit(1);
1411
1412 if (show_stats > 1)
1413 fprintf(stderr, "Flush state with XFRM-PROTO value \"%s\"\n",
1414 strxf_xfrmproto(req.xsf.proto));
1415
1416 if (rtnl_talk(&rth, &req.n, NULL) < 0)
1417 exit(2);
1418
1419 rtnl_close(&rth);
1420
1421 return 0;
1422 }
1423
1424 int do_xfrm_state(int argc, char **argv)
1425 {
1426 if (argc < 1)
1427 return xfrm_state_list_or_deleteall(0, NULL, 0);
1428
1429 if (matches(*argv, "add") == 0)
1430 return xfrm_state_modify(XFRM_MSG_NEWSA, 0,
1431 argc-1, argv+1);
1432 if (matches(*argv, "update") == 0)
1433 return xfrm_state_modify(XFRM_MSG_UPDSA, 0,
1434 argc-1, argv+1);
1435 if (matches(*argv, "allocspi") == 0)
1436 return xfrm_state_allocspi(argc-1, argv+1);
1437 if (matches(*argv, "delete") == 0)
1438 return xfrm_state_get_or_delete(argc-1, argv+1, 1);
1439 if (matches(*argv, "deleteall") == 0 || matches(*argv, "delall") == 0)
1440 return xfrm_state_list_or_deleteall(argc-1, argv+1, 1);
1441 if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
1442 || matches(*argv, "lst") == 0)
1443 return xfrm_state_list_or_deleteall(argc-1, argv+1, 0);
1444 if (matches(*argv, "get") == 0)
1445 return xfrm_state_get_or_delete(argc-1, argv+1, 0);
1446 if (matches(*argv, "flush") == 0)
1447 return xfrm_state_flush(argc-1, argv+1);
1448 if (matches(*argv, "count") == 0) {
1449 return xfrm_sad_getinfo(argc, argv);
1450 }
1451 if (matches(*argv, "help") == 0)
1452 usage();
1453 fprintf(stderr, "Command \"%s\" is unknown, try \"ip xfrm state help\".\n", *argv);
1454 exit(-1);
1455 }
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