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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,
58 "Usage: ip xfrm state { add | update } ID [ ALGO-LIST ] [ mode MODE ]\n"
59 " [ mark MARK [ mask MASK ] ] [ reqid REQID ] [ seq SEQ ]\n"
60 " [ replay-window SIZE ] [ replay-seq SEQ ] [ replay-oseq SEQ ]\n"
61 " [ replay-seq-hi SEQ ] [ replay-oseq-hi SEQ ]\n"
62 " [ flag FLAG-LIST ] [ sel SELECTOR ] [ LIMIT-LIST ] [ encap ENCAP ]\n"
63 " [ coa ADDR[/PLEN] ] [ ctx CTX ] [ extra-flag EXTRA-FLAG-LIST ]\n"
64 " [ offload [dev DEV] dir DIR ]\n"
65 " [ output-mark OUTPUT-MARK ]\n"
66 " [ if_id IF_ID ]\n"
67 "Usage: ip xfrm state allocspi ID [ mode MODE ] [ mark MARK [ mask MASK ] ]\n"
68 " [ reqid REQID ] [ seq SEQ ] [ min SPI max SPI ]\n"
69 "Usage: ip xfrm state { delete | get } ID [ mark MARK [ mask MASK ] ]\n"
70 "Usage: ip xfrm state deleteall [ ID ] [ mode MODE ] [ reqid REQID ]\n"
71 " [ flag FLAG-LIST ]\n"
72 "Usage: ip xfrm state list [ nokeys ] [ ID ] [ mode MODE ] [ reqid REQID ]\n"
73 " [ flag FLAG-LIST ]\n"
74 "Usage: ip xfrm state flush [ proto XFRM-PROTO ]\n"
75 "Usage: ip xfrm state count\n"
76 "ID := [ src ADDR ] [ dst ADDR ] [ proto XFRM-PROTO ] [ spi SPI ]\n"
77 "XFRM-PROTO := ");
78 fprintf(stderr,
79 "%s | %s | %s | %s | %s\n",
80 strxf_xfrmproto(IPPROTO_ESP),
81 strxf_xfrmproto(IPPROTO_AH),
82 strxf_xfrmproto(IPPROTO_COMP),
83 strxf_xfrmproto(IPPROTO_ROUTING),
84 strxf_xfrmproto(IPPROTO_DSTOPTS));
85 fprintf(stderr,
86 "ALGO-LIST := [ ALGO-LIST ] ALGO\n"
87 "ALGO := { ");
88 fprintf(stderr,
89 "%s | %s",
90 strxf_algotype(XFRMA_ALG_CRYPT),
91 strxf_algotype(XFRMA_ALG_AUTH));
92 fprintf(stderr,
93 " } ALGO-NAME ALGO-KEYMAT |\n"
94 " %s", strxf_algotype(XFRMA_ALG_AUTH_TRUNC));
95 fprintf(stderr,
96 " ALGO-NAME ALGO-KEYMAT ALGO-TRUNC-LEN |\n"
97 " %s", strxf_algotype(XFRMA_ALG_AEAD));
98 fprintf(stderr,
99 " ALGO-NAME ALGO-KEYMAT ALGO-ICV-LEN |\n"
100 " %s", strxf_algotype(XFRMA_ALG_COMP));
101 fprintf(stderr,
102 " ALGO-NAME\n"
103 "MODE := transport | tunnel | beet | ro | in_trigger\n"
104 "FLAG-LIST := [ FLAG-LIST ] FLAG\n"
105 "FLAG := noecn | decap-dscp | nopmtudisc | wildrecv | icmp | af-unspec | align4 | esn\n"
106 "EXTRA-FLAG-LIST := [ EXTRA-FLAG-LIST ] EXTRA-FLAG\n"
107 "EXTRA-FLAG := dont-encap-dscp\n"
108 "SELECTOR := [ src ADDR[/PLEN] ] [ dst ADDR[/PLEN] ] [ dev DEV ] [ UPSPEC ]\n"
109 "UPSPEC := proto { { ");
110 fprintf(stderr,
111 "%s | %s | %s | %s",
112 strxf_proto(IPPROTO_TCP),
113 strxf_proto(IPPROTO_UDP),
114 strxf_proto(IPPROTO_SCTP),
115 strxf_proto(IPPROTO_DCCP));
116 fprintf(stderr,
117 " } [ sport PORT ] [ dport PORT ] |\n"
118 " { ");
119 fprintf(stderr,
120 "%s | %s | %s",
121 strxf_proto(IPPROTO_ICMP),
122 strxf_proto(IPPROTO_ICMPV6),
123 strxf_proto(IPPROTO_MH));
124 fprintf(stderr,
125 " } [ type NUMBER ] [ code NUMBER ] |\n");
126 fprintf(stderr,
127 " %s", strxf_proto(IPPROTO_GRE));
128 fprintf(stderr,
129 " [ key { DOTTED-QUAD | NUMBER } ] | PROTO }\n"
130 "LIMIT-LIST := [ LIMIT-LIST ] limit LIMIT\n"
131 "LIMIT := { time-soft | time-hard | time-use-soft | time-use-hard } SECONDS |\n"
132 " { byte-soft | byte-hard } SIZE | { packet-soft | packet-hard } COUNT\n"
133 "ENCAP := { espinudp | espinudp-nonike } SPORT DPORT OADDR\n"
134 "DIR := in | out\n");
135
136 exit(-1);
137 }
138
139 static int xfrm_algo_parse(struct xfrm_algo *alg, enum xfrm_attr_type_t type,
140 char *name, char *key, char *buf, int max)
141 {
142 int len;
143 int slen = strlen(key);
144
145 #if 0
146 /* XXX: verifying both name and key is required! */
147 fprintf(stderr, "warning: ALGO-NAME/ALGO-KEYMAT values will be sent to the kernel promiscuously! (verifying them isn't implemented yet)\n");
148 #endif
149
150 strlcpy(alg->alg_name, name, sizeof(alg->alg_name));
151
152 if (slen > 2 && strncmp(key, "0x", 2) == 0) {
153 /* split two chars "0x" from the top */
154 char *p = key + 2;
155 int plen = slen - 2;
156 int i;
157 int j;
158
159 /* Converting hexadecimal numbered string into real key;
160 * Convert each two chars into one char(value). If number
161 * of the length is odd, add zero on the top for rounding.
162 */
163
164 /* calculate length of the converted values(real key) */
165 len = (plen + 1) / 2;
166 if (len > max)
167 invarg("ALGO-KEYMAT value makes buffer overflow\n", key);
168
169 for (i = -(plen % 2), j = 0; j < len; i += 2, j++) {
170 char vbuf[3];
171 __u8 val;
172
173 vbuf[0] = i >= 0 ? p[i] : '0';
174 vbuf[1] = p[i + 1];
175 vbuf[2] = '\0';
176
177 if (get_u8(&val, vbuf, 16))
178 invarg("ALGO-KEYMAT value is invalid", key);
179
180 buf[j] = val;
181 }
182 } else {
183 len = slen;
184 if (len > 0) {
185 if (len > max)
186 invarg("ALGO-KEYMAT value makes buffer overflow\n", key);
187
188 memcpy(buf, key, len);
189 }
190 }
191
192 alg->alg_key_len = len * 8;
193
194 return 0;
195 }
196
197 static int xfrm_seq_parse(__u32 *seq, int *argcp, char ***argvp)
198 {
199 int argc = *argcp;
200 char **argv = *argvp;
201
202 if (get_be32(seq, *argv, 0))
203 invarg("SEQ value is invalid", *argv);
204
205 *argcp = argc;
206 *argvp = argv;
207
208 return 0;
209 }
210
211 static int xfrm_state_flag_parse(__u8 *flags, int *argcp, char ***argvp)
212 {
213 int argc = *argcp;
214 char **argv = *argvp;
215 int len = strlen(*argv);
216
217 if (len > 2 && strncmp(*argv, "0x", 2) == 0) {
218 __u8 val = 0;
219
220 if (get_u8(&val, *argv, 16))
221 invarg("FLAG value is invalid", *argv);
222 *flags = val;
223 } else {
224 while (1) {
225 if (strcmp(*argv, "noecn") == 0)
226 *flags |= XFRM_STATE_NOECN;
227 else if (strcmp(*argv, "decap-dscp") == 0)
228 *flags |= XFRM_STATE_DECAP_DSCP;
229 else if (strcmp(*argv, "nopmtudisc") == 0)
230 *flags |= XFRM_STATE_NOPMTUDISC;
231 else if (strcmp(*argv, "wildrecv") == 0)
232 *flags |= XFRM_STATE_WILDRECV;
233 else if (strcmp(*argv, "icmp") == 0)
234 *flags |= XFRM_STATE_ICMP;
235 else if (strcmp(*argv, "af-unspec") == 0)
236 *flags |= XFRM_STATE_AF_UNSPEC;
237 else if (strcmp(*argv, "align4") == 0)
238 *flags |= XFRM_STATE_ALIGN4;
239 else if (strcmp(*argv, "esn") == 0)
240 *flags |= XFRM_STATE_ESN;
241 else {
242 PREV_ARG(); /* back track */
243 break;
244 }
245
246 if (!NEXT_ARG_OK())
247 break;
248 NEXT_ARG();
249 }
250 }
251
252 *argcp = argc;
253 *argvp = argv;
254
255 return 0;
256 }
257
258 static int xfrm_state_extra_flag_parse(__u32 *extra_flags, int *argcp, char ***argvp)
259 {
260 int argc = *argcp;
261 char **argv = *argvp;
262 int len = strlen(*argv);
263
264 if (len > 2 && strncmp(*argv, "0x", 2) == 0) {
265 __u32 val = 0;
266
267 if (get_u32(&val, *argv, 16))
268 invarg("\"EXTRA-FLAG\" is invalid", *argv);
269 *extra_flags = val;
270 } else {
271 while (1) {
272 if (strcmp(*argv, "dont-encap-dscp") == 0)
273 *extra_flags |= XFRM_SA_XFLAG_DONT_ENCAP_DSCP;
274 else {
275 PREV_ARG(); /* back track */
276 break;
277 }
278
279 if (!NEXT_ARG_OK())
280 break;
281 NEXT_ARG();
282 }
283 }
284
285 *argcp = argc;
286 *argvp = argv;
287
288 return 0;
289 }
290
291 static int xfrm_offload_dir_parse(__u8 *dir, int *argcp, char ***argvp)
292 {
293 int argc = *argcp;
294 char **argv = *argvp;
295
296 if (strcmp(*argv, "in") == 0)
297 *dir = XFRM_OFFLOAD_INBOUND;
298 else if (strcmp(*argv, "out") == 0)
299 *dir = 0;
300 else
301 invarg("DIR value is invalid", *argv);
302
303 *argcp = argc;
304 *argvp = argv;
305
306 return 0;
307 }
308
309 static int xfrm_state_modify(int cmd, unsigned int flags, int argc, char **argv)
310 {
311 struct rtnl_handle rth;
312 struct {
313 struct nlmsghdr n;
314 struct xfrm_usersa_info xsinfo;
315 char buf[RTA_BUF_SIZE];
316 } req = {
317 .n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xsinfo)),
318 .n.nlmsg_flags = NLM_F_REQUEST | flags,
319 .n.nlmsg_type = cmd,
320 .xsinfo.family = preferred_family,
321 .xsinfo.lft.soft_byte_limit = XFRM_INF,
322 .xsinfo.lft.hard_byte_limit = XFRM_INF,
323 .xsinfo.lft.soft_packet_limit = XFRM_INF,
324 .xsinfo.lft.hard_packet_limit = XFRM_INF,
325 };
326 struct xfrm_replay_state replay = {};
327 struct xfrm_replay_state_esn replay_esn = {};
328 struct xfrm_user_offload xuo = {};
329 unsigned int ifindex = 0;
330 __u8 dir = 0;
331 bool is_offload = false;
332 __u32 replay_window = 0;
333 __u32 seq = 0, oseq = 0, seq_hi = 0, oseq_hi = 0;
334 char *idp = NULL;
335 char *aeadop = NULL;
336 char *ealgop = NULL;
337 char *aalgop = NULL;
338 char *calgop = NULL;
339 char *coap = NULL;
340 char *sctxp = NULL;
341 __u32 extra_flags = 0;
342 struct xfrm_mark mark = {0, 0};
343 struct {
344 struct xfrm_user_sec_ctx sctx;
345 char str[CTX_BUF_SIZE];
346 } ctx = {};
347 __u32 output_mark = 0;
348 bool is_if_id_set = false;
349 __u32 if_id = 0;
350
351 while (argc > 0) {
352 if (strcmp(*argv, "mode") == 0) {
353 NEXT_ARG();
354 xfrm_mode_parse(&req.xsinfo.mode, &argc, &argv);
355 } else if (strcmp(*argv, "mark") == 0) {
356 xfrm_parse_mark(&mark, &argc, &argv);
357 } else if (strcmp(*argv, "reqid") == 0) {
358 NEXT_ARG();
359 xfrm_reqid_parse(&req.xsinfo.reqid, &argc, &argv);
360 } else if (strcmp(*argv, "seq") == 0) {
361 NEXT_ARG();
362 xfrm_seq_parse(&req.xsinfo.seq, &argc, &argv);
363 } else if (strcmp(*argv, "replay-window") == 0) {
364 NEXT_ARG();
365 if (get_u32(&replay_window, *argv, 0))
366 invarg("value after \"replay-window\" is invalid", *argv);
367 } else if (strcmp(*argv, "replay-seq") == 0) {
368 NEXT_ARG();
369 if (get_u32(&seq, *argv, 0))
370 invarg("value after \"replay-seq\" is invalid", *argv);
371 } else if (strcmp(*argv, "replay-seq-hi") == 0) {
372 NEXT_ARG();
373 if (get_u32(&seq_hi, *argv, 0))
374 invarg("value after \"replay-seq-hi\" is invalid", *argv);
375 } else if (strcmp(*argv, "replay-oseq") == 0) {
376 NEXT_ARG();
377 if (get_u32(&oseq, *argv, 0))
378 invarg("value after \"replay-oseq\" is invalid", *argv);
379 } else if (strcmp(*argv, "replay-oseq-hi") == 0) {
380 NEXT_ARG();
381 if (get_u32(&oseq_hi, *argv, 0))
382 invarg("value after \"replay-oseq-hi\" is invalid", *argv);
383 } else if (strcmp(*argv, "flag") == 0) {
384 NEXT_ARG();
385 xfrm_state_flag_parse(&req.xsinfo.flags, &argc, &argv);
386 } else if (strcmp(*argv, "extra-flag") == 0) {
387 NEXT_ARG();
388 xfrm_state_extra_flag_parse(&extra_flags, &argc, &argv);
389 } else if (strcmp(*argv, "sel") == 0) {
390 NEXT_ARG();
391 preferred_family = AF_UNSPEC;
392 xfrm_selector_parse(&req.xsinfo.sel, &argc, &argv);
393 preferred_family = req.xsinfo.sel.family;
394 } else if (strcmp(*argv, "limit") == 0) {
395 NEXT_ARG();
396 xfrm_lifetime_cfg_parse(&req.xsinfo.lft, &argc, &argv);
397 } else if (strcmp(*argv, "encap") == 0) {
398 struct xfrm_encap_tmpl encap;
399 inet_prefix oa;
400 NEXT_ARG();
401 xfrm_encap_type_parse(&encap.encap_type, &argc, &argv);
402 NEXT_ARG();
403 if (get_be16(&encap.encap_sport, *argv, 0))
404 invarg("SPORT value after \"encap\" is invalid", *argv);
405 NEXT_ARG();
406 if (get_be16(&encap.encap_dport, *argv, 0))
407 invarg("DPORT value after \"encap\" is invalid", *argv);
408 NEXT_ARG();
409 get_addr(&oa, *argv, AF_UNSPEC);
410 memcpy(&encap.encap_oa, &oa.data, sizeof(encap.encap_oa));
411 addattr_l(&req.n, sizeof(req.buf), XFRMA_ENCAP,
412 (void *)&encap, sizeof(encap));
413 } else if (strcmp(*argv, "coa") == 0) {
414 inet_prefix coa;
415 xfrm_address_t xcoa = {};
416
417 if (coap)
418 duparg("coa", *argv);
419 coap = *argv;
420
421 NEXT_ARG();
422
423 get_prefix(&coa, *argv, preferred_family);
424 if (coa.family == AF_UNSPEC)
425 invarg("value after \"coa\" has an unrecognized address family", *argv);
426 if (coa.bytelen > sizeof(xcoa))
427 invarg("value after \"coa\" is too large", *argv);
428
429 memcpy(&xcoa, &coa.data, coa.bytelen);
430
431 addattr_l(&req.n, sizeof(req.buf), XFRMA_COADDR,
432 (void *)&xcoa, sizeof(xcoa));
433 } else if (strcmp(*argv, "ctx") == 0) {
434 char *context;
435
436 if (sctxp)
437 duparg("ctx", *argv);
438 sctxp = *argv;
439
440 NEXT_ARG();
441 context = *argv;
442
443 xfrm_sctx_parse((char *)&ctx.str, context, &ctx.sctx);
444 addattr_l(&req.n, sizeof(req.buf), XFRMA_SEC_CTX,
445 (void *)&ctx, ctx.sctx.len);
446 } else if (strcmp(*argv, "offload") == 0) {
447 is_offload = true;
448 NEXT_ARG();
449 if (strcmp(*argv, "dev") == 0) {
450 NEXT_ARG();
451 ifindex = ll_name_to_index(*argv);
452 if (!ifindex) {
453 invarg("value after \"offload dev\" is invalid", *argv);
454 is_offload = false;
455 }
456 NEXT_ARG();
457 }
458 if (strcmp(*argv, "dir") == 0) {
459 NEXT_ARG();
460 xfrm_offload_dir_parse(&dir, &argc, &argv);
461 } else {
462 invarg("value after \"offload dir\" is invalid", *argv);
463 is_offload = false;
464 }
465 } else if (strcmp(*argv, "output-mark") == 0) {
466 NEXT_ARG();
467 if (get_u32(&output_mark, *argv, 0))
468 invarg("value after \"output-mark\" is invalid", *argv);
469 } else if (strcmp(*argv, "if_id") == 0) {
470 NEXT_ARG();
471 if (get_u32(&if_id, *argv, 0))
472 invarg("value after \"if_id\" is invalid", *argv);
473 is_if_id_set = true;
474 } else {
475 /* try to assume ALGO */
476 int type = xfrm_algotype_getbyname(*argv);
477
478 switch (type) {
479 case XFRMA_ALG_AEAD:
480 case XFRMA_ALG_CRYPT:
481 case XFRMA_ALG_AUTH:
482 case XFRMA_ALG_AUTH_TRUNC:
483 case XFRMA_ALG_COMP:
484 {
485 /* ALGO */
486 struct {
487 union {
488 struct xfrm_algo alg;
489 struct xfrm_algo_aead aead;
490 struct xfrm_algo_auth auth;
491 } u;
492 char buf[XFRM_ALGO_KEY_BUF_SIZE];
493 } alg = {};
494 int len;
495 __u32 icvlen, trunclen;
496 char *name;
497 char *key = "";
498 char *buf;
499
500 switch (type) {
501 case XFRMA_ALG_AEAD:
502 if (ealgop || aalgop || aeadop)
503 duparg("ALGO-TYPE", *argv);
504 aeadop = *argv;
505 break;
506 case XFRMA_ALG_CRYPT:
507 if (ealgop || aeadop)
508 duparg("ALGO-TYPE", *argv);
509 ealgop = *argv;
510 break;
511 case XFRMA_ALG_AUTH:
512 case XFRMA_ALG_AUTH_TRUNC:
513 if (aalgop || aeadop)
514 duparg("ALGO-TYPE", *argv);
515 aalgop = *argv;
516 break;
517 case XFRMA_ALG_COMP:
518 if (calgop)
519 duparg("ALGO-TYPE", *argv);
520 calgop = *argv;
521 break;
522 default:
523 /* not reached */
524 invarg("ALGO-TYPE value is invalid\n", *argv);
525 }
526
527 if (!NEXT_ARG_OK())
528 missarg("ALGO-NAME");
529 NEXT_ARG();
530 name = *argv;
531
532 switch (type) {
533 case XFRMA_ALG_AEAD:
534 case XFRMA_ALG_CRYPT:
535 case XFRMA_ALG_AUTH:
536 case XFRMA_ALG_AUTH_TRUNC:
537 if (!NEXT_ARG_OK())
538 missarg("ALGO-KEYMAT");
539 NEXT_ARG();
540 key = *argv;
541 break;
542 }
543
544 buf = alg.u.alg.alg_key;
545 len = sizeof(alg.u.alg);
546
547 switch (type) {
548 case XFRMA_ALG_AEAD:
549 if (!NEXT_ARG_OK())
550 missarg("ALGO-ICV-LEN");
551 NEXT_ARG();
552 if (get_u32(&icvlen, *argv, 0))
553 invarg("ALGO-ICV-LEN value is invalid",
554 *argv);
555 alg.u.aead.alg_icv_len = icvlen;
556
557 buf = alg.u.aead.alg_key;
558 len = sizeof(alg.u.aead);
559 break;
560 case XFRMA_ALG_AUTH_TRUNC:
561 if (!NEXT_ARG_OK())
562 missarg("ALGO-TRUNC-LEN");
563 NEXT_ARG();
564 if (get_u32(&trunclen, *argv, 0))
565 invarg("ALGO-TRUNC-LEN value is invalid",
566 *argv);
567 alg.u.auth.alg_trunc_len = trunclen;
568
569 buf = alg.u.auth.alg_key;
570 len = sizeof(alg.u.auth);
571 break;
572 }
573
574 xfrm_algo_parse((void *)&alg, type, name, key,
575 buf, sizeof(alg.buf));
576 len += alg.u.alg.alg_key_len / 8;
577
578 addattr_l(&req.n, sizeof(req.buf), type,
579 (void *)&alg, len);
580 break;
581 }
582 default:
583 /* try to assume ID */
584 if (idp)
585 invarg("unknown", *argv);
586 idp = *argv;
587
588 /* ID */
589 xfrm_id_parse(&req.xsinfo.saddr, &req.xsinfo.id,
590 &req.xsinfo.family, 0, &argc, &argv);
591 if (preferred_family == AF_UNSPEC)
592 preferred_family = req.xsinfo.family;
593 }
594 }
595 argc--; argv++;
596 }
597
598 if (req.xsinfo.flags & XFRM_STATE_ESN &&
599 replay_window == 0) {
600 fprintf(stderr, "Error: esn flag set without replay-window.\n");
601 exit(-1);
602 }
603
604 if (replay_window > XFRMA_REPLAY_ESN_MAX) {
605 fprintf(stderr,
606 "Error: replay-window (%u) > XFRMA_REPLAY_ESN_MAX (%u).\n",
607 replay_window, XFRMA_REPLAY_ESN_MAX);
608 exit(-1);
609 }
610
611 if (is_offload) {
612 xuo.ifindex = ifindex;
613 xuo.flags = dir;
614 addattr_l(&req.n, sizeof(req.buf), XFRMA_OFFLOAD_DEV, &xuo,
615 sizeof(xuo));
616 }
617 if (req.xsinfo.flags & XFRM_STATE_ESN ||
618 replay_window > (sizeof(replay.bitmap) * 8)) {
619 replay_esn.seq = seq;
620 replay_esn.oseq = oseq;
621 replay_esn.seq_hi = seq_hi;
622 replay_esn.oseq_hi = oseq_hi;
623 replay_esn.replay_window = replay_window;
624 replay_esn.bmp_len = (replay_window + sizeof(__u32) * 8 - 1) /
625 (sizeof(__u32) * 8);
626 addattr_l(&req.n, sizeof(req.buf), XFRMA_REPLAY_ESN_VAL,
627 &replay_esn, sizeof(replay_esn));
628 } else {
629 if (seq || oseq) {
630 replay.seq = seq;
631 replay.oseq = oseq;
632 addattr_l(&req.n, sizeof(req.buf), XFRMA_REPLAY_VAL,
633 &replay, sizeof(replay));
634 }
635 req.xsinfo.replay_window = replay_window;
636 }
637
638 if (extra_flags)
639 addattr32(&req.n, sizeof(req.buf), XFRMA_SA_EXTRA_FLAGS,
640 extra_flags);
641
642 if (!idp) {
643 fprintf(stderr, "Not enough information: ID is required\n");
644 exit(1);
645 }
646
647 if (mark.m) {
648 int r = addattr_l(&req.n, sizeof(req.buf), XFRMA_MARK,
649 (void *)&mark, sizeof(mark));
650 if (r < 0) {
651 fprintf(stderr, "XFRMA_MARK failed\n");
652 exit(1);
653 }
654 }
655
656 if (is_if_id_set)
657 addattr32(&req.n, sizeof(req.buf), XFRMA_IF_ID, if_id);
658
659 if (xfrm_xfrmproto_is_ipsec(req.xsinfo.id.proto)) {
660 switch (req.xsinfo.mode) {
661 case XFRM_MODE_TRANSPORT:
662 case XFRM_MODE_TUNNEL:
663 break;
664 case XFRM_MODE_BEET:
665 if (req.xsinfo.id.proto == IPPROTO_ESP)
666 break;
667 default:
668 fprintf(stderr, "MODE value is invalid with XFRM-PROTO value \"%s\"\n",
669 strxf_xfrmproto(req.xsinfo.id.proto));
670 exit(1);
671 }
672
673 switch (req.xsinfo.id.proto) {
674 case IPPROTO_ESP:
675 if (calgop) {
676 fprintf(stderr, "ALGO-TYPE value \"%s\" is invalid with XFRM-PROTO value \"%s\"\n",
677 strxf_algotype(XFRMA_ALG_COMP),
678 strxf_xfrmproto(req.xsinfo.id.proto));
679 exit(1);
680 }
681 if (!ealgop && !aeadop) {
682 fprintf(stderr, "ALGO-TYPE value \"%s\" or \"%s\" is required with XFRM-PROTO value \"%s\"\n",
683 strxf_algotype(XFRMA_ALG_CRYPT),
684 strxf_algotype(XFRMA_ALG_AEAD),
685 strxf_xfrmproto(req.xsinfo.id.proto));
686 exit(1);
687 }
688 break;
689 case IPPROTO_AH:
690 if (ealgop || aeadop || calgop) {
691 fprintf(stderr, "ALGO-TYPE values \"%s\", \"%s\", and \"%s\" are invalid with XFRM-PROTO value \"%s\"\n",
692 strxf_algotype(XFRMA_ALG_CRYPT),
693 strxf_algotype(XFRMA_ALG_AEAD),
694 strxf_algotype(XFRMA_ALG_COMP),
695 strxf_xfrmproto(req.xsinfo.id.proto));
696 exit(1);
697 }
698 if (!aalgop) {
699 fprintf(stderr, "ALGO-TYPE value \"%s\" or \"%s\" is required with XFRM-PROTO value \"%s\"\n",
700 strxf_algotype(XFRMA_ALG_AUTH),
701 strxf_algotype(XFRMA_ALG_AUTH_TRUNC),
702 strxf_xfrmproto(req.xsinfo.id.proto));
703 exit(1);
704 }
705 break;
706 case IPPROTO_COMP:
707 if (ealgop || aalgop || aeadop) {
708 fprintf(stderr, "ALGO-TYPE values \"%s\", \"%s\", \"%s\", and \"%s\" are invalid with XFRM-PROTO value \"%s\"\n",
709 strxf_algotype(XFRMA_ALG_CRYPT),
710 strxf_algotype(XFRMA_ALG_AUTH),
711 strxf_algotype(XFRMA_ALG_AUTH_TRUNC),
712 strxf_algotype(XFRMA_ALG_AEAD),
713 strxf_xfrmproto(req.xsinfo.id.proto));
714 exit(1);
715 }
716 if (!calgop) {
717 fprintf(stderr, "ALGO-TYPE value \"%s\" is required with XFRM-PROTO value \"%s\"\n",
718 strxf_algotype(XFRMA_ALG_COMP),
719 strxf_xfrmproto(req.xsinfo.id.proto));
720 exit(1);
721 }
722 break;
723 }
724 } else {
725 if (ealgop || aalgop || aeadop || calgop) {
726 fprintf(stderr, "ALGO is invalid with XFRM-PROTO value \"%s\"\n",
727 strxf_xfrmproto(req.xsinfo.id.proto));
728 exit(1);
729 }
730 }
731
732 if (xfrm_xfrmproto_is_ro(req.xsinfo.id.proto)) {
733 switch (req.xsinfo.mode) {
734 case XFRM_MODE_ROUTEOPTIMIZATION:
735 case XFRM_MODE_IN_TRIGGER:
736 break;
737 case 0:
738 fprintf(stderr, "\"mode\" is required with XFRM-PROTO value \"%s\"\n",
739 strxf_xfrmproto(req.xsinfo.id.proto));
740 exit(1);
741 default:
742 fprintf(stderr, "MODE value is invalid with XFRM-PROTO value \"%s\"\n",
743 strxf_xfrmproto(req.xsinfo.id.proto));
744 exit(1);
745 }
746
747 if (!coap) {
748 fprintf(stderr, "\"coa\" is required with XFRM-PROTO value \"%s\"\n",
749 strxf_xfrmproto(req.xsinfo.id.proto));
750 exit(1);
751 }
752 } else {
753 if (coap) {
754 fprintf(stderr, "\"coa\" is invalid with XFRM-PROTO value \"%s\"\n",
755 strxf_xfrmproto(req.xsinfo.id.proto));
756 exit(1);
757 }
758 }
759
760 if (output_mark)
761 addattr32(&req.n, sizeof(req.buf), XFRMA_OUTPUT_MARK, output_mark);
762
763 if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
764 exit(1);
765
766 if (req.xsinfo.family == AF_UNSPEC)
767 req.xsinfo.family = AF_INET;
768
769 if (rtnl_talk(&rth, &req.n, NULL) < 0)
770 exit(2);
771
772 rtnl_close(&rth);
773
774 return 0;
775 }
776
777 static int xfrm_state_allocspi(int argc, char **argv)
778 {
779 struct rtnl_handle rth;
780 struct {
781 struct nlmsghdr n;
782 struct xfrm_userspi_info xspi;
783 char buf[RTA_BUF_SIZE];
784 } req = {
785 .n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xspi)),
786 .n.nlmsg_flags = NLM_F_REQUEST,
787 .n.nlmsg_type = XFRM_MSG_ALLOCSPI,
788 .xspi.info.family = preferred_family,
789 #if 0
790 .xspi.lft.soft_byte_limit = XFRM_INF,
791 .xspi.lft.hard_byte_limit = XFRM_INF,
792 .xspi.lft.soft_packet_limit = XFRM_INF,
793 .xspi.lft.hard_packet_limit = XFRM_INF,
794 #endif
795 };
796 char *idp = NULL;
797 char *minp = NULL;
798 char *maxp = NULL;
799 struct xfrm_mark mark = {0, 0};
800 struct nlmsghdr *answer;
801
802 while (argc > 0) {
803 if (strcmp(*argv, "mode") == 0) {
804 NEXT_ARG();
805 xfrm_mode_parse(&req.xspi.info.mode, &argc, &argv);
806 } else if (strcmp(*argv, "mark") == 0) {
807 xfrm_parse_mark(&mark, &argc, &argv);
808 } else if (strcmp(*argv, "reqid") == 0) {
809 NEXT_ARG();
810 xfrm_reqid_parse(&req.xspi.info.reqid, &argc, &argv);
811 } else if (strcmp(*argv, "seq") == 0) {
812 NEXT_ARG();
813 xfrm_seq_parse(&req.xspi.info.seq, &argc, &argv);
814 } else if (strcmp(*argv, "min") == 0) {
815 if (minp)
816 duparg("min", *argv);
817 minp = *argv;
818
819 NEXT_ARG();
820
821 if (get_u32(&req.xspi.min, *argv, 0))
822 invarg("value after \"min\" is invalid", *argv);
823 } else if (strcmp(*argv, "max") == 0) {
824 if (maxp)
825 duparg("max", *argv);
826 maxp = *argv;
827
828 NEXT_ARG();
829
830 if (get_u32(&req.xspi.max, *argv, 0))
831 invarg("value after \"max\" is invalid", *argv);
832 } else {
833 /* try to assume ID */
834 if (idp)
835 invarg("unknown", *argv);
836 idp = *argv;
837
838 /* ID */
839 xfrm_id_parse(&req.xspi.info.saddr, &req.xspi.info.id,
840 &req.xspi.info.family, 0, &argc, &argv);
841 if (req.xspi.info.id.spi) {
842 fprintf(stderr, "\"spi\" is invalid\n");
843 exit(1);
844 }
845 if (preferred_family == AF_UNSPEC)
846 preferred_family = req.xspi.info.family;
847 }
848 argc--; argv++;
849 }
850
851 if (!idp) {
852 fprintf(stderr, "Not enough information: ID is required\n");
853 exit(1);
854 }
855
856 if (minp) {
857 if (!maxp) {
858 fprintf(stderr, "\"max\" is missing\n");
859 exit(1);
860 }
861 if (req.xspi.min > req.xspi.max) {
862 fprintf(stderr, "value after \"min\" is larger than value after \"max\"\n");
863 exit(1);
864 }
865 } else {
866 if (maxp) {
867 fprintf(stderr, "\"min\" is missing\n");
868 exit(1);
869 }
870
871 /* XXX: Default value defined in PF_KEY;
872 * See kernel's net/key/af_key.c(pfkey_getspi).
873 */
874 req.xspi.min = 0x100;
875 req.xspi.max = 0x0fffffff;
876
877 /* XXX: IPCOMP spi is 16-bits;
878 * See kernel's net/xfrm/xfrm_user(verify_userspi_info).
879 */
880 if (req.xspi.info.id.proto == IPPROTO_COMP)
881 req.xspi.max = 0xffff;
882 }
883
884 if (mark.m & mark.v) {
885 int r = addattr_l(&req.n, sizeof(req.buf), XFRMA_MARK,
886 (void *)&mark, sizeof(mark));
887 if (r < 0) {
888 fprintf(stderr, "XFRMA_MARK failed\n");
889 exit(1);
890 }
891 }
892
893 if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
894 exit(1);
895
896 if (req.xspi.info.family == AF_UNSPEC)
897 req.xspi.info.family = AF_INET;
898
899
900 if (rtnl_talk(&rth, &req.n, &answer) < 0)
901 exit(2);
902
903 if (xfrm_state_print(answer, (void *)stdout) < 0) {
904 fprintf(stderr, "An error :-)\n");
905 exit(1);
906 }
907
908 free(answer);
909 rtnl_close(&rth);
910
911 return 0;
912 }
913
914 static int xfrm_state_filter_match(struct xfrm_usersa_info *xsinfo)
915 {
916 if (!filter.use)
917 return 1;
918
919 if (filter.xsinfo.family != AF_UNSPEC &&
920 filter.xsinfo.family != xsinfo->family)
921 return 0;
922
923 if (filter.id_src_mask)
924 if (xfrm_addr_match(&xsinfo->saddr, &filter.xsinfo.saddr,
925 filter.id_src_mask))
926 return 0;
927 if (filter.id_dst_mask)
928 if (xfrm_addr_match(&xsinfo->id.daddr, &filter.xsinfo.id.daddr,
929 filter.id_dst_mask))
930 return 0;
931 if ((xsinfo->id.proto^filter.xsinfo.id.proto)&filter.id_proto_mask)
932 return 0;
933 if ((xsinfo->id.spi^filter.xsinfo.id.spi)&filter.id_spi_mask)
934 return 0;
935 if ((xsinfo->mode^filter.xsinfo.mode)&filter.mode_mask)
936 return 0;
937 if ((xsinfo->reqid^filter.xsinfo.reqid)&filter.reqid_mask)
938 return 0;
939 if (filter.state_flags_mask)
940 if ((xsinfo->flags & filter.xsinfo.flags) == 0)
941 return 0;
942
943 return 1;
944 }
945
946 static int __do_xfrm_state_print(struct nlmsghdr *n, void *arg, bool nokeys)
947 {
948 FILE *fp = (FILE *)arg;
949 struct rtattr *tb[XFRMA_MAX+1];
950 struct rtattr *rta;
951 struct xfrm_usersa_info *xsinfo = NULL;
952 struct xfrm_user_expire *xexp = NULL;
953 struct xfrm_usersa_id *xsid = NULL;
954 int len = n->nlmsg_len;
955
956 if (n->nlmsg_type != XFRM_MSG_NEWSA &&
957 n->nlmsg_type != XFRM_MSG_DELSA &&
958 n->nlmsg_type != XFRM_MSG_UPDSA &&
959 n->nlmsg_type != XFRM_MSG_EXPIRE) {
960 fprintf(stderr, "Not a state: %08x %08x %08x\n",
961 n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
962 return 0;
963 }
964
965 if (n->nlmsg_type == XFRM_MSG_DELSA) {
966 /* Don't blame me for this .. Herbert made me do it */
967 xsid = NLMSG_DATA(n);
968 len -= NLMSG_SPACE(sizeof(*xsid));
969 } else if (n->nlmsg_type == XFRM_MSG_EXPIRE) {
970 xexp = NLMSG_DATA(n);
971 xsinfo = &xexp->state;
972 len -= NLMSG_SPACE(sizeof(*xexp));
973 } else {
974 xexp = NULL;
975 xsinfo = NLMSG_DATA(n);
976 len -= NLMSG_SPACE(sizeof(*xsinfo));
977 }
978
979 if (len < 0) {
980 fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
981 return -1;
982 }
983
984 if (xsinfo && !xfrm_state_filter_match(xsinfo))
985 return 0;
986
987 if (n->nlmsg_type == XFRM_MSG_DELSA)
988 fprintf(fp, "Deleted ");
989 else if (n->nlmsg_type == XFRM_MSG_UPDSA)
990 fprintf(fp, "Updated ");
991 else if (n->nlmsg_type == XFRM_MSG_EXPIRE)
992 fprintf(fp, "Expired ");
993
994 if (n->nlmsg_type == XFRM_MSG_DELSA)
995 rta = XFRMSID_RTA(xsid);
996 else if (n->nlmsg_type == XFRM_MSG_EXPIRE)
997 rta = XFRMEXP_RTA(xexp);
998 else
999 rta = XFRMS_RTA(xsinfo);
1000
1001 parse_rtattr(tb, XFRMA_MAX, rta, len);
1002
1003 if (n->nlmsg_type == XFRM_MSG_DELSA) {
1004 /* xfrm_policy_id_print(); */
1005
1006 if (!tb[XFRMA_SA]) {
1007 fprintf(stderr, "Buggy XFRM_MSG_DELSA: no XFRMA_SA\n");
1008 return -1;
1009 }
1010 if (RTA_PAYLOAD(tb[XFRMA_SA]) < sizeof(*xsinfo)) {
1011 fprintf(stderr, "Buggy XFRM_MSG_DELPOLICY: too short XFRMA_POLICY len\n");
1012 return -1;
1013 }
1014 xsinfo = RTA_DATA(tb[XFRMA_SA]);
1015 }
1016
1017 xfrm_state_info_print(xsinfo, tb, fp, NULL, NULL, nokeys);
1018
1019 if (n->nlmsg_type == XFRM_MSG_EXPIRE) {
1020 fprintf(fp, "\t");
1021 fprintf(fp, "hard %u", xexp->hard);
1022 fprintf(fp, "%s", _SL_);
1023 }
1024
1025 if (oneline)
1026 fprintf(fp, "\n");
1027 fflush(fp);
1028
1029 return 0;
1030 }
1031
1032 int xfrm_state_print(struct nlmsghdr *n, void *arg)
1033 {
1034 return __do_xfrm_state_print(n, arg, false);
1035 }
1036
1037 int xfrm_state_print_nokeys(struct nlmsghdr *n, void *arg)
1038 {
1039 return __do_xfrm_state_print(n, arg, true);
1040 }
1041
1042 static int xfrm_state_get_or_delete(int argc, char **argv, int delete)
1043 {
1044 struct rtnl_handle rth;
1045 struct {
1046 struct nlmsghdr n;
1047 struct xfrm_usersa_id xsid;
1048 char buf[RTA_BUF_SIZE];
1049 } req = {
1050 .n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xsid)),
1051 .n.nlmsg_flags = NLM_F_REQUEST,
1052 .n.nlmsg_type = delete ? XFRM_MSG_DELSA : XFRM_MSG_GETSA,
1053 .xsid.family = preferred_family,
1054 };
1055 struct xfrm_id id;
1056 char *idp = NULL;
1057 struct xfrm_mark mark = {0, 0};
1058
1059 while (argc > 0) {
1060 xfrm_address_t saddr;
1061
1062 if (strcmp(*argv, "mark") == 0) {
1063 xfrm_parse_mark(&mark, &argc, &argv);
1064 } else {
1065 if (idp)
1066 invarg("unknown", *argv);
1067 idp = *argv;
1068
1069 /* ID */
1070 memset(&id, 0, sizeof(id));
1071 memset(&saddr, 0, sizeof(saddr));
1072 xfrm_id_parse(&saddr, &id, &req.xsid.family, 0,
1073 &argc, &argv);
1074
1075 memcpy(&req.xsid.daddr, &id.daddr, sizeof(req.xsid.daddr));
1076 req.xsid.spi = id.spi;
1077 req.xsid.proto = id.proto;
1078
1079 addattr_l(&req.n, sizeof(req.buf), XFRMA_SRCADDR,
1080 (void *)&saddr, sizeof(saddr));
1081 }
1082
1083 argc--; argv++;
1084 }
1085
1086 if (mark.m & mark.v) {
1087 int r = addattr_l(&req.n, sizeof(req.buf), XFRMA_MARK,
1088 (void *)&mark, sizeof(mark));
1089 if (r < 0) {
1090 fprintf(stderr, "XFRMA_MARK failed\n");
1091 exit(1);
1092 }
1093 }
1094
1095 if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
1096 exit(1);
1097
1098 if (req.xsid.family == AF_UNSPEC)
1099 req.xsid.family = AF_INET;
1100
1101 if (delete) {
1102 if (rtnl_talk(&rth, &req.n, NULL) < 0)
1103 exit(2);
1104 } else {
1105 struct nlmsghdr *answer;
1106
1107 if (rtnl_talk(&rth, &req.n, &answer) < 0)
1108 exit(2);
1109
1110 if (xfrm_state_print(answer, (void *)stdout) < 0) {
1111 fprintf(stderr, "An error :-)\n");
1112 exit(1);
1113 }
1114
1115 free(answer);
1116 }
1117
1118 rtnl_close(&rth);
1119
1120 return 0;
1121 }
1122
1123 /*
1124 * With an existing state of nlmsg, make new nlmsg for deleting the state
1125 * and store it to buffer.
1126 */
1127 static int xfrm_state_keep(struct nlmsghdr *n, void *arg)
1128 {
1129 struct xfrm_buffer *xb = (struct xfrm_buffer *)arg;
1130 struct rtnl_handle *rth = xb->rth;
1131 struct xfrm_usersa_info *xsinfo = NLMSG_DATA(n);
1132 int len = n->nlmsg_len;
1133 struct nlmsghdr *new_n;
1134 struct xfrm_usersa_id *xsid;
1135 struct rtattr *tb[XFRMA_MAX+1];
1136
1137 if (n->nlmsg_type != XFRM_MSG_NEWSA) {
1138 fprintf(stderr, "Not a state: %08x %08x %08x\n",
1139 n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
1140 return 0;
1141 }
1142
1143 len -= NLMSG_LENGTH(sizeof(*xsinfo));
1144 if (len < 0) {
1145 fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
1146 return -1;
1147 }
1148
1149 if (!xfrm_state_filter_match(xsinfo))
1150 return 0;
1151
1152 if (xb->offset > xb->size) {
1153 fprintf(stderr, "State buffer overflow\n");
1154 return -1;
1155 }
1156
1157 new_n = (struct nlmsghdr *)(xb->buf + xb->offset);
1158 new_n->nlmsg_len = NLMSG_LENGTH(sizeof(*xsid));
1159 new_n->nlmsg_flags = NLM_F_REQUEST;
1160 new_n->nlmsg_type = XFRM_MSG_DELSA;
1161 new_n->nlmsg_seq = ++rth->seq;
1162
1163 xsid = NLMSG_DATA(new_n);
1164 xsid->family = xsinfo->family;
1165 memcpy(&xsid->daddr, &xsinfo->id.daddr, sizeof(xsid->daddr));
1166 xsid->spi = xsinfo->id.spi;
1167 xsid->proto = xsinfo->id.proto;
1168
1169 addattr_l(new_n, xb->size, XFRMA_SRCADDR, &xsinfo->saddr,
1170 sizeof(xsid->daddr));
1171
1172 parse_rtattr(tb, XFRMA_MAX, XFRMS_RTA(xsinfo), len);
1173
1174 if (tb[XFRMA_MARK]) {
1175 int r = addattr_l(new_n, xb->size, XFRMA_MARK,
1176 (void *)RTA_DATA(tb[XFRMA_MARK]), tb[XFRMA_MARK]->rta_len);
1177 if (r < 0) {
1178 fprintf(stderr, "%s: XFRMA_MARK failed\n", __func__);
1179 exit(1);
1180 }
1181 }
1182
1183 xb->offset += new_n->nlmsg_len;
1184 xb->nlmsg_count++;
1185
1186 return 0;
1187 }
1188
1189 static int xfrm_state_list_or_deleteall(int argc, char **argv, int deleteall)
1190 {
1191 char *idp = NULL;
1192 struct rtnl_handle rth;
1193 bool nokeys = false;
1194
1195 if (argc > 0 || preferred_family != AF_UNSPEC)
1196 filter.use = 1;
1197 filter.xsinfo.family = preferred_family;
1198
1199 while (argc > 0) {
1200 if (strcmp(*argv, "nokeys") == 0) {
1201 nokeys = true;
1202 } else if (strcmp(*argv, "mode") == 0) {
1203 NEXT_ARG();
1204 xfrm_mode_parse(&filter.xsinfo.mode, &argc, &argv);
1205
1206 filter.mode_mask = XFRM_FILTER_MASK_FULL;
1207
1208 } else if (strcmp(*argv, "reqid") == 0) {
1209 NEXT_ARG();
1210 xfrm_reqid_parse(&filter.xsinfo.reqid, &argc, &argv);
1211
1212 filter.reqid_mask = XFRM_FILTER_MASK_FULL;
1213
1214 } else if (strcmp(*argv, "flag") == 0) {
1215 NEXT_ARG();
1216 xfrm_state_flag_parse(&filter.xsinfo.flags, &argc, &argv);
1217
1218 filter.state_flags_mask = XFRM_FILTER_MASK_FULL;
1219
1220 } else {
1221 if (idp)
1222 invarg("unknown", *argv);
1223 idp = *argv;
1224
1225 /* ID */
1226 xfrm_id_parse(&filter.xsinfo.saddr, &filter.xsinfo.id,
1227 &filter.xsinfo.family, 1, &argc, &argv);
1228 if (preferred_family == AF_UNSPEC)
1229 preferred_family = filter.xsinfo.family;
1230 }
1231 argc--; argv++;
1232 }
1233
1234 if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
1235 exit(1);
1236
1237 if (deleteall) {
1238 struct xfrm_buffer xb;
1239 char buf[NLMSG_DELETEALL_BUF_SIZE];
1240 int i;
1241
1242 xb.buf = buf;
1243 xb.size = sizeof(buf);
1244 xb.rth = &rth;
1245
1246 for (i = 0; ; i++) {
1247 struct {
1248 struct nlmsghdr n;
1249 char buf[NLMSG_BUF_SIZE];
1250 } req = {
1251 .n.nlmsg_len = NLMSG_HDRLEN,
1252 .n.nlmsg_flags = NLM_F_DUMP | NLM_F_REQUEST,
1253 .n.nlmsg_type = XFRM_MSG_GETSA,
1254 .n.nlmsg_seq = rth.dump = ++rth.seq,
1255 };
1256
1257 xb.offset = 0;
1258 xb.nlmsg_count = 0;
1259
1260 if (show_stats > 1)
1261 fprintf(stderr, "Delete-all round = %d\n", i);
1262
1263 if (rtnl_send(&rth, (void *)&req, req.n.nlmsg_len) < 0) {
1264 perror("Cannot send dump request");
1265 exit(1);
1266 }
1267
1268 if (rtnl_dump_filter(&rth, xfrm_state_keep, &xb) < 0) {
1269 fprintf(stderr, "Delete-all terminated\n");
1270 exit(1);
1271 }
1272 if (xb.nlmsg_count == 0) {
1273 if (show_stats > 1)
1274 fprintf(stderr, "Delete-all completed\n");
1275 break;
1276 }
1277
1278 if (rtnl_send_check(&rth, xb.buf, xb.offset) < 0) {
1279 perror("Failed to send delete-all request\n");
1280 exit(1);
1281 }
1282 if (show_stats > 1)
1283 fprintf(stderr, "Delete-all nlmsg count = %d\n", xb.nlmsg_count);
1284
1285 xb.offset = 0;
1286 xb.nlmsg_count = 0;
1287 }
1288
1289 } else {
1290 struct xfrm_address_filter addrfilter = {
1291 .saddr = filter.xsinfo.saddr,
1292 .daddr = filter.xsinfo.id.daddr,
1293 .family = filter.xsinfo.family,
1294 .splen = filter.id_src_mask,
1295 .dplen = filter.id_dst_mask,
1296 };
1297 struct {
1298 struct nlmsghdr n;
1299 char buf[NLMSG_BUF_SIZE];
1300 } req = {
1301 .n.nlmsg_len = NLMSG_HDRLEN,
1302 .n.nlmsg_flags = NLM_F_DUMP | NLM_F_REQUEST,
1303 .n.nlmsg_type = XFRM_MSG_GETSA,
1304 .n.nlmsg_seq = rth.dump = ++rth.seq,
1305 };
1306
1307 if (filter.xsinfo.id.proto)
1308 addattr8(&req.n, sizeof(req), XFRMA_PROTO,
1309 filter.xsinfo.id.proto);
1310 addattr_l(&req.n, sizeof(req), XFRMA_ADDRESS_FILTER,
1311 &addrfilter, sizeof(addrfilter));
1312
1313 if (rtnl_send(&rth, (void *)&req, req.n.nlmsg_len) < 0) {
1314 perror("Cannot send dump request");
1315 exit(1);
1316 }
1317
1318 rtnl_filter_t filter = nokeys ?
1319 xfrm_state_print_nokeys : xfrm_state_print;
1320 if (rtnl_dump_filter(&rth, filter, stdout) < 0) {
1321 fprintf(stderr, "Dump terminated\n");
1322 exit(1);
1323 }
1324 }
1325
1326 rtnl_close(&rth);
1327
1328 exit(0);
1329 }
1330
1331 static int print_sadinfo(struct nlmsghdr *n, void *arg)
1332 {
1333 FILE *fp = (FILE *)arg;
1334 __u32 *f = NLMSG_DATA(n);
1335 struct rtattr *tb[XFRMA_SAD_MAX+1];
1336 struct rtattr *rta;
1337 int len = n->nlmsg_len;
1338
1339 len -= NLMSG_LENGTH(sizeof(__u32));
1340 if (len < 0) {
1341 fprintf(stderr, "SADinfo: Wrong len %d\n", len);
1342 return -1;
1343 }
1344
1345 rta = XFRMSAPD_RTA(f);
1346 parse_rtattr(tb, XFRMA_SAD_MAX, rta, len);
1347
1348 if (tb[XFRMA_SAD_CNT]) {
1349 __u32 cnt;
1350
1351 fprintf(fp, "\t SAD");
1352 cnt = rta_getattr_u32(tb[XFRMA_SAD_CNT]);
1353 fprintf(fp, " count %u", cnt);
1354 } else {
1355 fprintf(fp, "BAD SAD info returned\n");
1356 return -1;
1357 }
1358
1359 if (show_stats) {
1360 if (tb[XFRMA_SAD_HINFO]) {
1361 struct xfrmu_sadhinfo *si;
1362
1363 if (RTA_PAYLOAD(tb[XFRMA_SAD_HINFO]) < sizeof(*si)) {
1364 fprintf(fp, "BAD SAD length returned\n");
1365 return -1;
1366 }
1367
1368 si = RTA_DATA(tb[XFRMA_SAD_HINFO]);
1369 fprintf(fp, " (buckets ");
1370 fprintf(fp, "count %d", si->sadhcnt);
1371 fprintf(fp, " Max %d", si->sadhmcnt);
1372 fprintf(fp, ")");
1373 }
1374 }
1375 fprintf(fp, "\n");
1376
1377 return 0;
1378 }
1379
1380 static int xfrm_sad_getinfo(int argc, char **argv)
1381 {
1382 struct rtnl_handle rth;
1383 struct {
1384 struct nlmsghdr n;
1385 __u32 flags;
1386 } req = {
1387 .n.nlmsg_len = NLMSG_LENGTH(sizeof(req.flags)),
1388 .n.nlmsg_flags = NLM_F_REQUEST,
1389 .n.nlmsg_type = XFRM_MSG_GETSADINFO,
1390 .flags = 0XFFFFFFFF,
1391 };
1392 struct nlmsghdr *answer;
1393
1394 if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
1395 exit(1);
1396
1397 if (rtnl_talk(&rth, &req.n, &answer) < 0)
1398 exit(2);
1399
1400 print_sadinfo(answer, (void *)stdout);
1401
1402 free(answer);
1403 rtnl_close(&rth);
1404
1405 return 0;
1406 }
1407
1408 static int xfrm_state_flush(int argc, char **argv)
1409 {
1410 struct rtnl_handle rth;
1411 struct {
1412 struct nlmsghdr n;
1413 struct xfrm_usersa_flush xsf;
1414 } req = {
1415 .n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xsf)),
1416 .n.nlmsg_flags = NLM_F_REQUEST,
1417 .n.nlmsg_type = XFRM_MSG_FLUSHSA,
1418 };
1419 char *protop = NULL;
1420
1421 while (argc > 0) {
1422 if (strcmp(*argv, "proto") == 0) {
1423 int ret;
1424
1425 if (protop)
1426 duparg("proto", *argv);
1427 protop = *argv;
1428
1429 NEXT_ARG();
1430
1431 ret = xfrm_xfrmproto_getbyname(*argv);
1432 if (ret < 0)
1433 invarg("XFRM-PROTO value is invalid", *argv);
1434
1435 req.xsf.proto = (__u8)ret;
1436 } else
1437 invarg("unknown", *argv);
1438
1439 argc--; argv++;
1440 }
1441
1442 if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
1443 exit(1);
1444
1445 if (show_stats > 1)
1446 fprintf(stderr, "Flush state with XFRM-PROTO value \"%s\"\n",
1447 strxf_xfrmproto(req.xsf.proto));
1448
1449 if (rtnl_talk(&rth, &req.n, NULL) < 0)
1450 exit(2);
1451
1452 rtnl_close(&rth);
1453
1454 return 0;
1455 }
1456
1457 int do_xfrm_state(int argc, char **argv)
1458 {
1459 if (argc < 1)
1460 return xfrm_state_list_or_deleteall(0, NULL, 0);
1461
1462 if (matches(*argv, "add") == 0)
1463 return xfrm_state_modify(XFRM_MSG_NEWSA, 0,
1464 argc-1, argv+1);
1465 if (matches(*argv, "update") == 0)
1466 return xfrm_state_modify(XFRM_MSG_UPDSA, 0,
1467 argc-1, argv+1);
1468 if (matches(*argv, "allocspi") == 0)
1469 return xfrm_state_allocspi(argc-1, argv+1);
1470 if (matches(*argv, "delete") == 0)
1471 return xfrm_state_get_or_delete(argc-1, argv+1, 1);
1472 if (matches(*argv, "deleteall") == 0 || matches(*argv, "delall") == 0)
1473 return xfrm_state_list_or_deleteall(argc-1, argv+1, 1);
1474 if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
1475 || matches(*argv, "lst") == 0)
1476 return xfrm_state_list_or_deleteall(argc-1, argv+1, 0);
1477 if (matches(*argv, "get") == 0)
1478 return xfrm_state_get_or_delete(argc-1, argv+1, 0);
1479 if (matches(*argv, "flush") == 0)
1480 return xfrm_state_flush(argc-1, argv+1);
1481 if (matches(*argv, "count") == 0) {
1482 return xfrm_sad_getinfo(argc, argv);
1483 }
1484 if (matches(*argv, "help") == 0)
1485 usage();
1486 fprintf(stderr, "Command \"%s\" is unknown, try \"ip xfrm state help\".\n", *argv);
1487 exit(-1);
1488 }
Upstream mirror of iproute2