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c7699875 1/* $USAGI: $ */
2
3/*
4 * Copyright (C)2004 USAGI/WIDE Project
ae665a52 5 *
c7699875 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.
ae665a52 10 *
c7699875 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.
ae665a52 15 *
c7699875 16 * You should have received a copy of the GNU General Public License
4d98ab00 17 * along with this program; if not, see <http://www.gnu.org/licenses>.
c7699875 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>
c7699875 31#include "utils.h"
32#include "xfrm.h"
33#include "ip_common.h"
34
9bec1a43
SH		 35//#define NLMSG_DELETEALL_BUF_SIZE (4096-512)
36#define NLMSG_DELETEALL_BUF_SIZE 8192
c7699875 37
38/*
39 * Receiving buffer defines:
40 * nlmsg
41 * data = struct xfrm_usersa_info
42 * rtattr
43 * rtattr
2534613e 44 * ... (max count of rtattr is XFRM_MAX+1
c7699875 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
0c7a5945 51#define CTX_BUF_SIZE 256
c7699875 52
53static void usage(void) __attribute__((noreturn));
54
55static void usage(void)
56{
cbec0219
DW		 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");
0151b56d 60 fprintf(stderr, " [ replay-seq-hi SEQ ] [ replay-oseq-hi SEQ ]\n");
cbec0219 61 fprintf(stderr, " [ flag FLAG-LIST ] [ sel SELECTOR ] [ LIMIT-LIST ] [ encap ENCAP ]\n");
dc8867d0 62 fprintf(stderr, " [ coa ADDR[/PLEN] ] [ ctx CTX ] [ extra-flag EXTRA-FLAG-LIST ]\n");
cbec0219
DW		 63 fprintf(stderr, "Usage: ip xfrm state allocspi ID [ mode MODE ] [ mark MARK [ mask MASK ] ]\n");
64 fprintf(stderr, " [ reqid REQID ] [ seq SEQ ] [ min SPI max SPI ]\n");
65 fprintf(stderr, "Usage: ip xfrm state { delete | get } ID [ mark MARK [ mask MASK ] ]\n");
9bec1a43 66 fprintf(stderr, "Usage: ip xfrm state { deleteall | list } [ ID ] [ mode MODE ] [ reqid REQID ]\n");
c1fa2253 67 fprintf(stderr, " [ flag FLAG-LIST ]\n");
cbec0219
DW		 68 fprintf(stderr, "Usage: ip xfrm state flush [ proto XFRM-PROTO ]\n");
69 fprintf(stderr, "Usage: ip xfrm state count\n");
70 fprintf(stderr, "ID := [ src ADDR ] [ dst ADDR ] [ proto XFRM-PROTO ] [ spi SPI ]\n");
71 fprintf(stderr, "XFRM-PROTO := ");
29aa4dd7 72 fprintf(stderr, "%s | ", strxf_xfrmproto(IPPROTO_ESP));
73 fprintf(stderr, "%s | ", strxf_xfrmproto(IPPROTO_AH));
7ea4f5d3
MN		 74 fprintf(stderr, "%s | ", strxf_xfrmproto(IPPROTO_COMP));
75 fprintf(stderr, "%s | ", strxf_xfrmproto(IPPROTO_ROUTING));
cbec0219
DW		 76 fprintf(stderr, "%s\n", strxf_xfrmproto(IPPROTO_DSTOPTS));
77 fprintf(stderr, "ALGO-LIST := [ ALGO-LIST ] ALGO\n");
78 fprintf(stderr, "ALGO := { ");
7809c616 79 fprintf(stderr, "%s | ", strxf_algotype(XFRMA_ALG_CRYPT));
f3b9aa3d 80 fprintf(stderr, "%s", strxf_algotype(XFRMA_ALG_AUTH));
29665f92 81 fprintf(stderr, " } ALGO-NAME ALGO-KEYMAT |\n");
f3b9aa3d 82 fprintf(stderr, " %s", strxf_algotype(XFRMA_ALG_AUTH_TRUNC));
29665f92 83 fprintf(stderr, " ALGO-NAME ALGO-KEYMAT ALGO-TRUNC-LEN |\n");
cbec0219 84 fprintf(stderr, " %s", strxf_algotype(XFRMA_ALG_AEAD));
29665f92 85 fprintf(stderr, " ALGO-NAME ALGO-KEYMAT ALGO-ICV-LEN |\n");
f3b9aa3d
DW		 86 fprintf(stderr, " %s", strxf_algotype(XFRMA_ALG_COMP));
87 fprintf(stderr, " ALGO-NAME\n");
e8740e42 88 fprintf(stderr, "MODE := transport | tunnel | beet | ro | in_trigger\n");
cbec0219 89 fprintf(stderr, "FLAG-LIST := [ FLAG-LIST ] FLAG\n");
0151b56d 90 fprintf(stderr, "FLAG := noecn | decap-dscp | nopmtudisc | wildrecv | icmp | af-unspec | align4 | esn\n");
dc8867d0
ND		 91 fprintf(stderr, "EXTRA-FLAG-LIST := [ EXTRA-FLAG-LIST ] EXTRA-FLAG\n");
92 fprintf(stderr, "EXTRA-FLAG := dont-encap-dscp\n");
cbec0219
DW		 93 fprintf(stderr, "SELECTOR := [ src ADDR[/PLEN] ] [ dst ADDR[/PLEN] ] [ dev DEV ] [ UPSPEC ]\n");
94 fprintf(stderr, "UPSPEC := proto { { ");
95 fprintf(stderr, "%s | ", strxf_proto(IPPROTO_TCP));
96 fprintf(stderr, "%s | ", strxf_proto(IPPROTO_UDP));
97 fprintf(stderr, "%s | ", strxf_proto(IPPROTO_SCTP));
98 fprintf(stderr, "%s", strxf_proto(IPPROTO_DCCP));
99 fprintf(stderr, " } [ sport PORT ] [ dport PORT ] |\n");
100 fprintf(stderr, " { ");
101 fprintf(stderr, "%s | ", strxf_proto(IPPROTO_ICMP));
102 fprintf(stderr, "%s | ", strxf_proto(IPPROTO_ICMPV6));
103 fprintf(stderr, "%s", strxf_proto(IPPROTO_MH));
104 fprintf(stderr, " } [ type NUMBER ] [ code NUMBER ] |\n");
105 fprintf(stderr, " %s", strxf_proto(IPPROTO_GRE));
106 fprintf(stderr, " [ key { DOTTED-QUAD | NUMBER } ] | PROTO }\n");
107 fprintf(stderr, "LIMIT-LIST := [ LIMIT-LIST ] limit LIMIT\n");
108 fprintf(stderr, "LIMIT := { time-soft | time-hard | time-use-soft | time-use-hard } SECONDS |\n");
109 fprintf(stderr, " { byte-soft | byte-hard } SIZE | { packet-soft | packet-hard } COUNT\n");
110 fprintf(stderr, "ENCAP := { espinudp | espinudp-nonike } SPORT DPORT OADDR\n");
c7699875 111
c7699875 112 exit(-1);
113}
114
115static int xfrm_algo_parse(struct xfrm_algo *alg, enum xfrm_attr_type_t type,
1758a81f 116 char *name, char *key, char *buf, int max)
c7699875 117{
118 int len;
7809c616 119 int slen = strlen(key);
c7699875 120
eaa34ee3 121#if 0
c7699875 122 /* XXX: verifying both name and key is required! */
29665f92 123 fprintf(stderr, "warning: ALGO-NAME/ALGO-KEYMAT values will be sent to the kernel promiscuously! (verifying them isn't implemented yet)\n");
c7699875 124#endif
125
126 strncpy(alg->alg_name, name, sizeof(alg->alg_name));
127
7809c616 128 if (slen > 2 && strncmp(key, "0x", 2) == 0) {
54f7328a 129 /* split two chars "0x" from the top */
130 char *p = key + 2;
131 int plen = slen - 2;
132 int i;
133 int j;
134
135 /* Converting hexadecimal numbered string into real key;
136 * Convert each two chars into one char(value). If number
137 * of the length is odd, add zero on the top for rounding.
c7699875 138 */
7809c616 139
54f7328a 140 /* calculate length of the converted values(real key) */
141 len = (plen + 1) / 2;
142 if (len > max)
29665f92 143 invarg("ALGO-KEYMAT value makes buffer overflow\n", key);
c7699875 144
54f7328a 145 for (i = - (plen % 2), j = 0; j < len; i += 2, j++) {
146 char vbuf[3];
737f15f6 147 __u8 val;
c7699875 148
54f7328a 149 vbuf[0] = i >= 0 ? p[i] : '0';
150 vbuf[1] = p[i + 1];
151 vbuf[2] = '\0';
c7699875 152
54f7328a 153 if (get_u8(&val, vbuf, 16))
29665f92 154 invarg("ALGO-KEYMAT value is invalid", key);
7809c616 155
1758a81f 156 buf[j] = val;
c7699875 157 }
c7699875 158 } else {
7809c616 159 len = slen;
c7699875 160 if (len > 0) {
161 if (len > max)
29665f92 162 invarg("ALGO-KEYMAT value makes buffer overflow\n", key);
c7699875 163
99500b56 164 memcpy(buf, key, len);
c7699875 165 }
166 }
167
168 alg->alg_key_len = len * 8;
169
170 return 0;
171}
172
fb7399b2 173static int xfrm_seq_parse(__u32 *seq, int *argcp, char ***argvp)
174{
175 int argc = *argcp;
176 char **argv = *argvp;
177
178 if (get_u32(seq, *argv, 0))
e8740e42 179 invarg("SEQ value is invalid", *argv);
fb7399b2 180
181 *seq = htonl(*seq);
182
183 *argcp = argc;
184 *argvp = argv;
185
186 return 0;
187}
188
c7699875 189static int xfrm_state_flag_parse(__u8 *flags, int *argcp, char ***argvp)
190{
191 int argc = *argcp;
192 char **argv = *argvp;
9e566a46 193 int len = strlen(*argv);
194
195 if (len > 2 && strncmp(*argv, "0x", 2) == 0) {
196 __u8 val = 0;
c7699875 197
9e566a46 198 if (get_u8(&val, *argv, 16))
e8740e42 199 invarg("FLAG value is invalid", *argv);
9e566a46 200 *flags = val;
201 } else {
eaa34ee3 202 while (1) {
203 if (strcmp(*argv, "noecn") == 0)
204 *flags |= XFRM_STATE_NOECN;
205 else if (strcmp(*argv, "decap-dscp") == 0)
206 *flags |= XFRM_STATE_DECAP_DSCP;
c1fa2253
MN		 207 else if (strcmp(*argv, "nopmtudisc") == 0)
208 *flags |= XFRM_STATE_NOPMTUDISC;
7ea4f5d3
MN		 209 else if (strcmp(*argv, "wildrecv") == 0)
210 *flags |= XFRM_STATE_WILDRECV;
15bb82c6
AB		 211 else if (strcmp(*argv, "icmp") == 0)
212 *flags |= XFRM_STATE_ICMP;
213 else if (strcmp(*argv, "af-unspec") == 0)
214 *flags |= XFRM_STATE_AF_UNSPEC;
98f5519c
ND		 215 else if (strcmp(*argv, "align4") == 0)
216 *flags |= XFRM_STATE_ALIGN4;
0151b56d 217 else if (strcmp(*argv, "esn") == 0)
218 *flags |= XFRM_STATE_ESN;
eaa34ee3 219 else {
220 PREV_ARG(); /* back track */
221 break;
222 }
223
224 if (!NEXT_ARG_OK())
225 break;
226 NEXT_ARG();
227 }
9e566a46 228 }
c7699875 229
c7699875 230 *argcp = argc;
231 *argvp = argv;
232
233 return 0;
234}
235
dc8867d0
ND		 236static int xfrm_state_extra_flag_parse(__u32 *extra_flags, int *argcp, char ***argvp)
237{
238 int argc = *argcp;
239 char **argv = *argvp;
240 int len = strlen(*argv);
241
242 if (len > 2 && strncmp(*argv, "0x", 2) == 0) {
243 __u32 val = 0;
244
245 if (get_u32(&val, *argv, 16))
246 invarg("\"EXTRA-FLAG\" is invalid", *argv);
247 *extra_flags = val;
248 } else {
249 while (1) {
250 if (strcmp(*argv, "dont-encap-dscp") == 0)
251 *extra_flags |= XFRM_SA_XFLAG_DONT_ENCAP_DSCP;
252 else {
253 PREV_ARG(); /* back track */
254 break;
255 }
256
257 if (!NEXT_ARG_OK())
258 break;
259 NEXT_ARG();
260 }
261 }
262
263 *argcp = argc;
264 *argvp = argv;
265
266 return 0;
267}
268
c7699875 269static int xfrm_state_modify(int cmd, unsigned flags, int argc, char **argv)
270{
271 struct rtnl_handle rth;
272 struct {
4806867a 273 struct nlmsghdr n;
c7699875 274 struct xfrm_usersa_info xsinfo;
4806867a 275 char buf[RTA_BUF_SIZE];
c7699875 276 } req;
de95ae7c 277 struct xfrm_replay_state replay;
0151b56d 278 struct xfrm_replay_state_esn replay_esn;
279 __u32 replay_window = 0;
280 __u32 seq = 0, oseq = 0, seq_hi = 0, oseq_hi = 0;
c7699875 281 char *idp = NULL;
1758a81f 282 char *aeadop = NULL;
c7699875 283 char *ealgop = NULL;
284 char *aalgop = NULL;
285 char *calgop = NULL;
7ea4f5d3 286 char *coap = NULL;
0c7a5945 287 char *sctxp = NULL;
dc8867d0 288 __u32 extra_flags = 0;
c90cda94 289 struct xfrm_mark mark = {0, 0};
0c7a5945
JL		 290 struct {
291 struct xfrm_user_sec_ctx sctx;
292 char str[CTX_BUF_SIZE];
293 } ctx;
c7699875 294
295 memset(&req, 0, sizeof(req));
de95ae7c 296 memset(&replay, 0, sizeof(replay));
0151b56d 297 memset(&replay_esn, 0, sizeof(replay_esn));
0c7a5945 298 memset(&ctx, 0, sizeof(ctx));
c7699875 299
300 req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xsinfo));
301 req.n.nlmsg_flags = NLM_F_REQUEST|flags;
302 req.n.nlmsg_type = cmd;
303 req.xsinfo.family = preferred_family;
304
305 req.xsinfo.lft.soft_byte_limit = XFRM_INF;
306 req.xsinfo.lft.hard_byte_limit = XFRM_INF;
307 req.xsinfo.lft.soft_packet_limit = XFRM_INF;
308 req.xsinfo.lft.hard_packet_limit = XFRM_INF;
309
310 while (argc > 0) {
7809c616 311 if (strcmp(*argv, "mode") == 0) {
c7699875 312 NEXT_ARG();
313 xfrm_mode_parse(&req.xsinfo.mode, &argc, &argv);
c90cda94
JHS		 314 } else if (strcmp(*argv, "mark") == 0) {
315 xfrm_parse_mark(&mark, &argc, &argv);
c7699875 316 } else if (strcmp(*argv, "reqid") == 0) {
317 NEXT_ARG();
318 xfrm_reqid_parse(&req.xsinfo.reqid, &argc, &argv);
fb7399b2 319 } else if (strcmp(*argv, "seq") == 0) {
320 NEXT_ARG();
321 xfrm_seq_parse(&req.xsinfo.seq, &argc, &argv);
eaa34ee3 322 } else if (strcmp(*argv, "replay-window") == 0) {
323 NEXT_ARG();
0151b56d 324 if (get_u32(&replay_window, *argv, 0))
e8740e42 325 invarg("value after \"replay-window\" is invalid", *argv);
de95ae7c
HX		 326 } else if (strcmp(*argv, "replay-seq") == 0) {
327 NEXT_ARG();
0151b56d 328 if (get_u32(&seq, *argv, 0))
e8740e42 329 invarg("value after \"replay-seq\" is invalid", *argv);
0151b56d 330 } else if (strcmp(*argv, "replay-seq-hi") == 0) {
331 NEXT_ARG();
332 if (get_u32(&seq_hi, *argv, 0))
333 invarg("value after \"replay-seq-hi\" is invalid", *argv);
de95ae7c
HX		 334 } else if (strcmp(*argv, "replay-oseq") == 0) {
335 NEXT_ARG();
0151b56d 336 if (get_u32(&oseq, *argv, 0))
e8740e42 337 invarg("value after \"replay-oseq\" is invalid", *argv);
0151b56d 338 } else if (strcmp(*argv, "replay-oseq-hi") == 0) {
339 NEXT_ARG();
340 if (get_u32(&oseq_hi, *argv, 0))
341 invarg("value after \"replay-oseq-hi\" is invalid", *argv);
c7699875 342 } else if (strcmp(*argv, "flag") == 0) {
343 NEXT_ARG();
344 xfrm_state_flag_parse(&req.xsinfo.flags, &argc, &argv);
dc8867d0
ND		 345 } else if (strcmp(*argv, "extra-flag") == 0) {
346 NEXT_ARG();
347 xfrm_state_extra_flag_parse(&extra_flags, &argc, &argv);
c7699875 348 } else if (strcmp(*argv, "sel") == 0) {
349 NEXT_ARG();
23d5b0d5 350 preferred_family = AF_UNSPEC;
c7699875 351 xfrm_selector_parse(&req.xsinfo.sel, &argc, &argv);
0c5982fd 352 preferred_family = req.xsinfo.sel.family;
c7699875 353 } else if (strcmp(*argv, "limit") == 0) {
354 NEXT_ARG();
355 xfrm_lifetime_cfg_parse(&req.xsinfo.lft, &argc, &argv);
5cf576d9
SH		 356 } else if (strcmp(*argv, "encap") == 0) {
357 struct xfrm_encap_tmpl encap;
358 inet_prefix oa;
359 NEXT_ARG();
360 xfrm_encap_type_parse(&encap.encap_type, &argc, &argv);
361 NEXT_ARG();
362 if (get_u16(&encap.encap_sport, *argv, 0))
e8740e42 363 invarg("SPORT value after \"encap\" is invalid", *argv);
5cf576d9
SH		 364 encap.encap_sport = htons(encap.encap_sport);
365 NEXT_ARG();
366 if (get_u16(&encap.encap_dport, *argv, 0))
e8740e42 367 invarg("DPORT value after \"encap\" is invalid", *argv);
5cf576d9
SH		 368 encap.encap_dport = htons(encap.encap_dport);
369 NEXT_ARG();
370 get_addr(&oa, *argv, AF_UNSPEC);
371 memcpy(&encap.encap_oa, &oa.data, sizeof(encap.encap_oa));
372 addattr_l(&req.n, sizeof(req.buf), XFRMA_ENCAP,
373 (void *)&encap, sizeof(encap));
7ea4f5d3
MN		 374 } else if (strcmp(*argv, "coa") == 0) {
375 inet_prefix coa;
376 xfrm_address_t xcoa;
377
378 if (coap)
379 duparg("coa", *argv);
380 coap = *argv;
381
382 NEXT_ARG();
383
384 get_prefix(&coa, *argv, preferred_family);
385 if (coa.family == AF_UNSPEC)
e8740e42 386 invarg("value after \"coa\" has an unrecognized address family", *argv);
7ea4f5d3 387 if (coa.bytelen > sizeof(xcoa))
e8740e42 388 invarg("value after \"coa\" is too large", *argv);
7ea4f5d3
MN		 389
390 memset(&xcoa, 0, sizeof(xcoa));
391 memcpy(&xcoa, &coa.data, coa.bytelen);
392
393 addattr_l(&req.n, sizeof(req.buf), XFRMA_COADDR,
394 (void *)&xcoa, sizeof(xcoa));
0c7a5945
JL		 395 } else if (strcmp(*argv, "ctx") == 0) {
396 char *context;
397
398 if (sctxp)
399 duparg("ctx", *argv);
400 sctxp = *argv;
401
402 NEXT_ARG();
403 context = *argv;
404
405 xfrm_sctx_parse((char *)&ctx.str, context, &ctx.sctx);
406 addattr_l(&req.n, sizeof(req.buf), XFRMA_SEC_CTX,
407 (void *)&ctx, ctx.sctx.len);
c7699875 408 } else {
7809c616 409 /* try to assume ALGO */
410 int type = xfrm_algotype_getbyname(*argv);
411 switch (type) {
1758a81f 412 case XFRMA_ALG_AEAD:
7809c616 413 case XFRMA_ALG_CRYPT:
414 case XFRMA_ALG_AUTH:
f323f2a3 415 case XFRMA_ALG_AUTH_TRUNC:
7809c616 416 case XFRMA_ALG_COMP:
417 {
418 /* ALGO */
419 struct {
1758a81f
HX		 420 union {
421 struct xfrm_algo alg;
422 struct xfrm_algo_aead aead;
f323f2a3 423 struct xfrm_algo_auth auth;
1758a81f 424 } u;
7809c616 425 char buf[XFRM_ALGO_KEY_BUF_SIZE];
1758a81f 426 } alg = {};
7809c616 427 int len;
f323f2a3 428 __u32 icvlen, trunclen;
7809c616 429 char *name;
f3b9aa3d 430 char *key = "";
1758a81f 431 char *buf;
7809c616 432
433 switch (type) {
1758a81f 434 case XFRMA_ALG_AEAD:
ec839527 435 if (ealgop || aalgop || aeadop)
cbec0219 436 duparg("ALGO-TYPE", *argv);
1758a81f
HX		 437 aeadop = *argv;
438 break;
7809c616 439 case XFRMA_ALG_CRYPT:
ec839527 440 if (ealgop || aeadop)
cbec0219 441 duparg("ALGO-TYPE", *argv);
7809c616 442 ealgop = *argv;
443 break;
444 case XFRMA_ALG_AUTH:
f323f2a3 445 case XFRMA_ALG_AUTH_TRUNC:
ec839527 446 if (aalgop || aeadop)
cbec0219 447 duparg("ALGO-TYPE", *argv);
7809c616 448 aalgop = *argv;
449 break;
450 case XFRMA_ALG_COMP:
451 if (calgop)
cbec0219 452 duparg("ALGO-TYPE", *argv);
7809c616 453 calgop = *argv;
454 break;
455 default:
456 /* not reached */
e8740e42 457 invarg("ALGO-TYPE value is invalid\n", *argv);
7809c616 458 }
459
460 if (!NEXT_ARG_OK())
cbec0219 461 missarg("ALGO-NAME");
7809c616 462 NEXT_ARG();
463 name = *argv;
464
f3b9aa3d
DW		 465 switch (type) {
466 case XFRMA_ALG_AEAD:
467 case XFRMA_ALG_CRYPT:
468 case XFRMA_ALG_AUTH:
469 case XFRMA_ALG_AUTH_TRUNC:
470 if (!NEXT_ARG_OK())
29665f92 471 missarg("ALGO-KEYMAT");
f3b9aa3d
DW		 472 NEXT_ARG();
473 key = *argv;
474 break;
475 }
7809c616 476
1758a81f
HX		 477 buf = alg.u.alg.alg_key;
478 len = sizeof(alg.u.alg);
479
f323f2a3
ND		 480 switch (type) {
481 case XFRMA_ALG_AEAD:
482 if (!NEXT_ARG_OK())
cbec0219 483 missarg("ALGO-ICV-LEN");
f323f2a3
ND		 484 NEXT_ARG();
485 if (get_u32(&icvlen, *argv, 0))
e8740e42 486 invarg("ALGO-ICV-LEN value is invalid",
f323f2a3
ND		 487 *argv);
488 alg.u.aead.alg_icv_len = icvlen;
489
490 buf = alg.u.aead.alg_key;
491 len = sizeof(alg.u.aead);
492 break;
493 case XFRMA_ALG_AUTH_TRUNC:
494 if (!NEXT_ARG_OK())
cbec0219 495 missarg("ALGO-TRUNC-LEN");
f323f2a3
ND		 496 NEXT_ARG();
497 if (get_u32(&trunclen, *argv, 0))
e8740e42 498 invarg("ALGO-TRUNC-LEN value is invalid",
f323f2a3
ND		 499 *argv);
500 alg.u.auth.alg_trunc_len = trunclen;
501
502 buf = alg.u.auth.alg_key;
503 len = sizeof(alg.u.auth);
504 break;
505 }
7809c616 506
507 xfrm_algo_parse((void *)&alg, type, name, key,
1758a81f
HX		 508 buf, sizeof(alg.buf));
509 len += alg.u.alg.alg_key_len;
7809c616 510
511 addattr_l(&req.n, sizeof(req.buf), type,
512 (void *)&alg, len);
513 break;
514 }
515 default:
516 /* try to assume ID */
517 if (idp)
518 invarg("unknown", *argv);
519 idp = *argv;
520
521 /* ID */
522 xfrm_id_parse(&req.xsinfo.saddr, &req.xsinfo.id,
523 &req.xsinfo.family, 0, &argc, &argv);
524 if (preferred_family == AF_UNSPEC)
525 preferred_family = req.xsinfo.family;
526 }
c7699875 527 }
528 argc--; argv++;
529 }
530
0151b56d 531 if (req.xsinfo.flags & XFRM_STATE_ESN &&
532 replay_window == 0) {
533 fprintf(stderr, "Error: esn flag set without replay-window.\n");
534 exit(-1);
535 }
536
537 if (replay_window > XFRMA_REPLAY_ESN_MAX) {
538 fprintf(stderr,
539 "Error: replay-window (%u) > XFRMA_REPLAY_ESN_MAX (%u).\n",
540 replay_window, XFRMA_REPLAY_ESN_MAX);
541 exit(-1);
542 }
543
544 if (req.xsinfo.flags & XFRM_STATE_ESN ||
545 replay_window > (sizeof(replay.bitmap) * 8)) {
546 replay_esn.seq = seq;
547 replay_esn.oseq = oseq;
548 replay_esn.seq_hi = seq_hi;
549 replay_esn.oseq_hi = oseq_hi;
550 replay_esn.replay_window = replay_window;
551 replay_esn.bmp_len = (replay_window + sizeof(__u32) * 8 - 1) /
552 (sizeof(__u32) * 8);
553 addattr_l(&req.n, sizeof(req.buf), XFRMA_REPLAY_ESN_VAL,
554 &replay_esn, sizeof(replay_esn));
555 } else {
556 if (seq || oseq) {
557 replay.seq = seq;
558 replay.oseq = oseq;
559 addattr_l(&req.n, sizeof(req.buf), XFRMA_REPLAY_VAL,
560 &replay, sizeof(replay));
561 }
562 req.xsinfo.replay_window = replay_window;
563 }
de95ae7c 564
dc8867d0
ND		 565 if (extra_flags)
566 addattr32(&req.n, sizeof(req.buf), XFRMA_SA_EXTRA_FLAGS,
567 extra_flags);
568
c7699875 569 if (!idp) {
e8740e42 570 fprintf(stderr, "Not enough information: ID is required\n");
c7699875 571 exit(1);
572 }
573
b5574165 574 if (mark.m) {
c90cda94
JHS		 575 int r = addattr_l(&req.n, sizeof(req.buf), XFRMA_MARK,
576 (void *)&mark, sizeof(mark));
577 if (r < 0) {
578 fprintf(stderr, "XFRMA_MARK failed\n");
579 exit(1);
580 }
581 }
582
6128fdfd
DW		 583 if (xfrm_xfrmproto_is_ipsec(req.xsinfo.id.proto)) {
584 switch (req.xsinfo.mode) {
585 case XFRM_MODE_TRANSPORT:
586 case XFRM_MODE_TUNNEL:
587 break;
588 case XFRM_MODE_BEET:
589 if (req.xsinfo.id.proto == IPPROTO_ESP)
590 break;
591 default:
592 fprintf(stderr, "MODE value is invalid with XFRM-PROTO value \"%s\"\n",
7ea4f5d3
MN		 593 strxf_xfrmproto(req.xsinfo.id.proto));
594 exit(1);
595 }
6128fdfd
DW		 596
597 switch (req.xsinfo.id.proto) {
598 case IPPROTO_ESP:
599 if (calgop) {
600 fprintf(stderr, "ALGO-TYPE value \"%s\" is invalid with XFRM-PROTO value \"%s\"\n",
601 strxf_algotype(XFRMA_ALG_COMP),
602 strxf_xfrmproto(req.xsinfo.id.proto));
603 exit(1);
604 }
605 if (!ealgop && !aeadop) {
606 fprintf(stderr, "ALGO-TYPE value \"%s\" or \"%s\" is required with XFRM-PROTO value \"%s\"\n",
607 strxf_algotype(XFRMA_ALG_CRYPT),
608 strxf_algotype(XFRMA_ALG_AEAD),
609 strxf_xfrmproto(req.xsinfo.id.proto));
610 exit(1);
611 }
612 break;
613 case IPPROTO_AH:
614 if (ealgop || aeadop || calgop) {
615 fprintf(stderr, "ALGO-TYPE values \"%s\", \"%s\", and \"%s\" are invalid with XFRM-PROTO value \"%s\"\n",
616 strxf_algotype(XFRMA_ALG_CRYPT),
617 strxf_algotype(XFRMA_ALG_AEAD),
618 strxf_algotype(XFRMA_ALG_COMP),
619 strxf_xfrmproto(req.xsinfo.id.proto));
620 exit(1);
621 }
622 if (!aalgop) {
623 fprintf(stderr, "ALGO-TYPE value \"%s\" or \"%s\" is required with XFRM-PROTO value \"%s\"\n",
624 strxf_algotype(XFRMA_ALG_AUTH),
625 strxf_algotype(XFRMA_ALG_AUTH_TRUNC),
626 strxf_xfrmproto(req.xsinfo.id.proto));
627 exit(1);
628 }
629 break;
630 case IPPROTO_COMP:
631 if (ealgop || aalgop || aeadop) {
632 fprintf(stderr, "ALGO-TYPE values \"%s\", \"%s\", \"%s\", and \"%s\" are invalid with XFRM-PROTO value \"%s\"\n",
633 strxf_algotype(XFRMA_ALG_CRYPT),
634 strxf_algotype(XFRMA_ALG_AUTH),
635 strxf_algotype(XFRMA_ALG_AUTH_TRUNC),
636 strxf_algotype(XFRMA_ALG_AEAD),
637 strxf_xfrmproto(req.xsinfo.id.proto));
638 exit(1);
639 }
640 if (!calgop) {
641 fprintf(stderr, "ALGO-TYPE value \"%s\" is required with XFRM-PROTO value \"%s\"\n",
642 strxf_algotype(XFRMA_ALG_COMP),
643 strxf_xfrmproto(req.xsinfo.id.proto));
644 exit(1);
645 }
646 break;
647 }
648 } else {
649 if (ealgop || aalgop || aeadop || calgop) {
650 fprintf(stderr, "ALGO is invalid with XFRM-PROTO value \"%s\"\n",
7ea4f5d3
MN		 651 strxf_xfrmproto(req.xsinfo.id.proto));
652 exit(1);
653 }
7ea4f5d3
MN		 654 }
655
6128fdfd
DW		 656 if (xfrm_xfrmproto_is_ro(req.xsinfo.id.proto)) {
657 switch (req.xsinfo.mode) {
658 case XFRM_MODE_ROUTEOPTIMIZATION:
659 case XFRM_MODE_IN_TRIGGER:
660 break;
661 case 0:
662 fprintf(stderr, "\"mode\" is required with XFRM-PROTO value \"%s\"\n",
7ea4f5d3
MN		 663 strxf_xfrmproto(req.xsinfo.id.proto));
664 exit(1);
6128fdfd
DW		 665 default:
666 fprintf(stderr, "MODE value is invalid with XFRM-PROTO value \"%s\"\n",
7ea4f5d3 667 strxf_xfrmproto(req.xsinfo.id.proto));
6128fdfd 668 exit(1);
7ea4f5d3 669 }
7ea4f5d3 670
6128fdfd
DW		 671 if (!coap) {
672 fprintf(stderr, "\"coa\" is required with XFRM-PROTO value \"%s\"\n",
7ea4f5d3 673 strxf_xfrmproto(req.xsinfo.id.proto));
c7699875 674 exit(1);
675 }
676 } else {
6128fdfd
DW		 677 if (coap) {
678 fprintf(stderr, "\"coa\" is invalid with XFRM-PROTO value \"%s\"\n",
7ea4f5d3 679 strxf_xfrmproto(req.xsinfo.id.proto));
6128fdfd 680 exit(1);
c7699875 681 }
682 }
683
684 if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
685 exit(1);
686
687 if (req.xsinfo.family == AF_UNSPEC)
688 req.xsinfo.family = AF_INET;
689
c079e121 690 if (rtnl_talk(&rth, &req.n, NULL, 0) < 0)
c7699875 691 exit(2);
692
693 rtnl_close(&rth);
694
695 return 0;
696}
697
fb7399b2 698static int xfrm_state_allocspi(int argc, char **argv)
699{
700 struct rtnl_handle rth;
701 struct {
4806867a 702 struct nlmsghdr n;
fb7399b2 703 struct xfrm_userspi_info xspi;
4806867a 704 char buf[RTA_BUF_SIZE];
fb7399b2 705 } req;
706 char *idp = NULL;
707 char *minp = NULL;
708 char *maxp = NULL;
c90cda94 709 struct xfrm_mark mark = {0, 0};
fb7399b2 710 char res_buf[NLMSG_BUF_SIZE];
711 struct nlmsghdr *res_n = (struct nlmsghdr *)res_buf;
712
713 memset(res_buf, 0, sizeof(res_buf));
714
715 memset(&req, 0, sizeof(req));
716
717 req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xspi));
718 req.n.nlmsg_flags = NLM_F_REQUEST;
719 req.n.nlmsg_type = XFRM_MSG_ALLOCSPI;
720 req.xspi.info.family = preferred_family;
721
722#if 0
723 req.xsinfo.lft.soft_byte_limit = XFRM_INF;
724 req.xsinfo.lft.hard_byte_limit = XFRM_INF;
725 req.xsinfo.lft.soft_packet_limit = XFRM_INF;
726 req.xsinfo.lft.hard_packet_limit = XFRM_INF;
727#endif
728
729 while (argc > 0) {
730 if (strcmp(*argv, "mode") == 0) {
731 NEXT_ARG();
732 xfrm_mode_parse(&req.xspi.info.mode, &argc, &argv);
c90cda94
JHS		 733 } else if (strcmp(*argv, "mark") == 0) {
734 xfrm_parse_mark(&mark, &argc, &argv);
fb7399b2 735 } else if (strcmp(*argv, "reqid") == 0) {
736 NEXT_ARG();
737 xfrm_reqid_parse(&req.xspi.info.reqid, &argc, &argv);
738 } else if (strcmp(*argv, "seq") == 0) {
739 NEXT_ARG();
740 xfrm_seq_parse(&req.xspi.info.seq, &argc, &argv);
741 } else if (strcmp(*argv, "min") == 0) {
742 if (minp)
743 duparg("min", *argv);
744 minp = *argv;
745
746 NEXT_ARG();
747
748 if (get_u32(&req.xspi.min, *argv, 0))
e8740e42 749 invarg("value after \"min\" is invalid", *argv);
fb7399b2 750 } else if (strcmp(*argv, "max") == 0) {
751 if (maxp)
752 duparg("max", *argv);
753 maxp = *argv;
754
755 NEXT_ARG();
756
757 if (get_u32(&req.xspi.max, *argv, 0))
e8740e42 758 invarg("value after \"max\" is invalid", *argv);
fb7399b2 759 } else {
760 /* try to assume ID */
761 if (idp)
762 invarg("unknown", *argv);
763 idp = *argv;
764
765 /* ID */
766 xfrm_id_parse(&req.xspi.info.saddr, &req.xspi.info.id,
767 &req.xspi.info.family, 0, &argc, &argv);
768 if (req.xspi.info.id.spi) {
e8740e42 769 fprintf(stderr, "\"spi\" is invalid\n");
fb7399b2 770 exit(1);
771 }
772 if (preferred_family == AF_UNSPEC)
773 preferred_family = req.xspi.info.family;
774 }
775 argc--; argv++;
776 }
777
778 if (!idp) {
e8740e42 779 fprintf(stderr, "Not enough information: ID is required\n");
fb7399b2 780 exit(1);
781 }
782
783 if (minp) {
784 if (!maxp) {
785 fprintf(stderr, "\"max\" is missing\n");
786 exit(1);
787 }
788 if (req.xspi.min > req.xspi.max) {
e8740e42 789 fprintf(stderr, "value after \"min\" is larger than value after \"max\"\n");
fb7399b2 790 exit(1);
791 }
792 } else {
793 if (maxp) {
794 fprintf(stderr, "\"min\" is missing\n");
795 exit(1);
796 }
797
798 /* XXX: Default value defined in PF_KEY;
799 * See kernel's net/key/af_key.c(pfkey_getspi).
800 */
801 req.xspi.min = 0x100;
802 req.xspi.max = 0x0fffffff;
803
804 /* XXX: IPCOMP spi is 16-bits;
805 * See kernel's net/xfrm/xfrm_user(verify_userspi_info).
806 */
807 if (req.xspi.info.id.proto == IPPROTO_COMP)
808 req.xspi.max = 0xffff;
809 }
810
c90cda94
JHS		 811 if (mark.m & mark.v) {
812 int r = addattr_l(&req.n, sizeof(req.buf), XFRMA_MARK,
813 (void *)&mark, sizeof(mark));
814 if (r < 0) {
815 fprintf(stderr, "XFRMA_MARK failed\n");
816 exit(1);
817 }
818 }
819
fb7399b2 820 if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
821 exit(1);
822
823 if (req.xspi.info.family == AF_UNSPEC)
824 req.xspi.info.family = AF_INET;
825
826
c079e121 827 if (rtnl_talk(&rth, &req.n, res_n, sizeof(res_buf)) < 0)
fb7399b2 828 exit(2);
829
830 if (xfrm_state_print(NULL, res_n, (void*)stdout) < 0) {
831 fprintf(stderr, "An error :-)\n");
832 exit(1);
833 }
834
835 rtnl_close(&rth);
836
837 return 0;
838}
839
c7699875 840static int xfrm_state_filter_match(struct xfrm_usersa_info *xsinfo)
841{
842 if (!filter.use)
843 return 1;
844
845 if (filter.id_src_mask)
eaa34ee3 846 if (xfrm_addr_match(&xsinfo->saddr, &filter.xsinfo.saddr,
847 filter.id_src_mask))
c7699875 848 return 0;
849 if (filter.id_dst_mask)
eaa34ee3 850 if (xfrm_addr_match(&xsinfo->id.daddr, &filter.xsinfo.id.daddr,
851 filter.id_dst_mask))
c7699875 852 return 0;
853 if ((xsinfo->id.proto^filter.xsinfo.id.proto)&filter.id_proto_mask)
854 return 0;
855 if ((xsinfo->id.spi^filter.xsinfo.id.spi)&filter.id_spi_mask)
856 return 0;
857 if ((xsinfo->mode^filter.xsinfo.mode)&filter.mode_mask)
858 return 0;
859 if ((xsinfo->reqid^filter.xsinfo.reqid)&filter.reqid_mask)
860 return 0;
861 if (filter.state_flags_mask)
862 if ((xsinfo->flags & filter.xsinfo.flags) == 0)
863 return 0;
864
865 return 1;
866}
867
fb7399b2 868int xfrm_state_print(const struct sockaddr_nl *who, struct nlmsghdr *n,
869 void *arg)
c7699875 870{
871 FILE *fp = (FILE*)arg;
c7699875 872 struct rtattr * tb[XFRMA_MAX+1];
90f93024 873 struct rtattr * rta;
c595c790
SH		 874 struct xfrm_usersa_info *xsinfo = NULL;
875 struct xfrm_user_expire *xexp = NULL;
876 struct xfrm_usersa_id *xsid = NULL;
877 int len = n->nlmsg_len;
c7699875 878
879 if (n->nlmsg_type != XFRM_MSG_NEWSA &&
90f93024 880 n->nlmsg_type != XFRM_MSG_DELSA &&
669ae748 881 n->nlmsg_type != XFRM_MSG_UPDSA &&
90f93024 882 n->nlmsg_type != XFRM_MSG_EXPIRE) {
c7699875 883 fprintf(stderr, "Not a state: %08x %08x %08x\n",
884 n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
885 return 0;
886 }
887
669ae748
SH		 888 if (n->nlmsg_type == XFRM_MSG_DELSA) {
889 /* Dont blame me for this .. Herbert made me do it */
890 xsid = NLMSG_DATA(n);
af1b6a41 891 len -= NLMSG_SPACE(sizeof(*xsid));
669ae748 892 } else if (n->nlmsg_type == XFRM_MSG_EXPIRE) {
90f93024
SH		 893 xexp = NLMSG_DATA(n);
894 xsinfo = &xexp->state;
af1b6a41 895 len -= NLMSG_SPACE(sizeof(*xexp));
90f93024
SH		 896 } else {
897 xexp = NULL;
898 xsinfo = NLMSG_DATA(n);
af1b6a41 899 len -= NLMSG_SPACE(sizeof(*xsinfo));
90f93024
SH		 900 }
901
c7699875 902 if (len < 0) {
903 fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
904 return -1;
905 }
906
669ae748 907 if (xsinfo && !xfrm_state_filter_match(xsinfo))
c7699875 908 return 0;
909
669ae748 910 if (n->nlmsg_type == XFRM_MSG_DELSA)
c595c790 911 fprintf(fp, "Deleted ");
669ae748
SH		 912 else if (n->nlmsg_type == XFRM_MSG_UPDSA)
913 fprintf(fp, "Updated ");
c595c790
SH		 914 else if (n->nlmsg_type == XFRM_MSG_EXPIRE)
915 fprintf(fp, "Expired ");
916
669ae748
SH		 917 if (n->nlmsg_type == XFRM_MSG_DELSA)
918 rta = XFRMSID_RTA(xsid);
919 else if (n->nlmsg_type == XFRM_MSG_EXPIRE)
90f93024 920 rta = XFRMEXP_RTA(xexp);
ae665a52 921 else
90f93024
SH		 922 rta = XFRMS_RTA(xsinfo);
923
924 parse_rtattr(tb, XFRMA_MAX, rta, len);
c7699875 925
c595c790 926 if (n->nlmsg_type == XFRM_MSG_DELSA) {
669ae748
SH		 927 //xfrm_policy_id_print();
928
929 if (!tb[XFRMA_SA]) {
930 fprintf(stderr, "Buggy XFRM_MSG_DELSA: no XFRMA_SA\n");
931 return -1;
932 }
933 if (RTA_PAYLOAD(tb[XFRMA_SA]) < sizeof(*xsinfo)) {
934 fprintf(stderr, "Buggy XFRM_MSG_DELPOLICY: too short XFRMA_POLICY len\n");
935 return -1;
c595c790 936 }
bdf9e86d 937 xsinfo = RTA_DATA(tb[XFRMA_SA]);
c595c790 938 }
c7699875 939
fb7399b2 940 xfrm_state_info_print(xsinfo, tb, fp, NULL, NULL);
c7699875 941
90f93024
SH		 942 if (n->nlmsg_type == XFRM_MSG_EXPIRE) {
943 fprintf(fp, "\t");
944 fprintf(fp, "hard %u", xexp->hard);
945 fprintf(fp, "%s", _SL_);
946 }
947
7809c616 948 if (oneline)
949 fprintf(fp, "\n");
669ae748 950 fflush(fp);
7809c616 951
c7699875 952 return 0;
953}
954
955static int xfrm_state_get_or_delete(int argc, char **argv, int delete)
956{
957 struct rtnl_handle rth;
958 struct {
4806867a 959 struct nlmsghdr n;
c7699875 960 struct xfrm_usersa_id xsid;
4806867a 961 char buf[RTA_BUF_SIZE];
c7699875 962 } req;
963 struct xfrm_id id;
964 char *idp = NULL;
c90cda94 965 struct xfrm_mark mark = {0, 0};
c7699875 966
967 memset(&req, 0, sizeof(req));
968
969 req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xsid));
970 req.n.nlmsg_flags = NLM_F_REQUEST;
971 req.n.nlmsg_type = delete ? XFRM_MSG_DELSA : XFRM_MSG_GETSA;
972 req.xsid.family = preferred_family;
973
974 while (argc > 0) {
7ea4f5d3 975 xfrm_address_t saddr;
c7699875 976
c90cda94
JHS		 977 if (strcmp(*argv, "mark") == 0) {
978 xfrm_parse_mark(&mark, &argc, &argv);
979 } else {
980 if (idp)
981 invarg("unknown", *argv);
982 idp = *argv;
c7699875 983
c90cda94
JHS		 984 /* ID */
985 memset(&id, 0, sizeof(id));
986 memset(&saddr, 0, sizeof(saddr));
987 xfrm_id_parse(&saddr, &id, &req.xsid.family, 0,
988 &argc, &argv);
c7699875 989
c90cda94
JHS		 990 memcpy(&req.xsid.daddr, &id.daddr, sizeof(req.xsid.daddr));
991 req.xsid.spi = id.spi;
992 req.xsid.proto = id.proto;
c7699875 993
c90cda94
JHS		 994 addattr_l(&req.n, sizeof(req.buf), XFRMA_SRCADDR,
995 (void *)&saddr, sizeof(saddr));
996 }
7ea4f5d3 997
c7699875 998 argc--; argv++;
999 }
1000
c90cda94
JHS		 1001 if (mark.m & mark.v) {
1002 int r = addattr_l(&req.n, sizeof(req.buf), XFRMA_MARK,
1003 (void *)&mark, sizeof(mark));
1004 if (r < 0) {
1005 fprintf(stderr, "XFRMA_MARK failed\n");
1006 exit(1);
1007 }
1008 }
1009
c7699875 1010 if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
1011 exit(1);
1012
1013 if (req.xsid.family == AF_UNSPEC)
1014 req.xsid.family = AF_INET;
1015
1016 if (delete) {
c079e121 1017 if (rtnl_talk(&rth, &req.n, NULL, 0) < 0)
c7699875 1018 exit(2);
1019 } else {
1020 char buf[NLMSG_BUF_SIZE];
1021 struct nlmsghdr *res_n = (struct nlmsghdr *)buf;
1022
1023 memset(buf, 0, sizeof(buf));
1024
c079e121 1025 if (rtnl_talk(&rth, &req.n, res_n, sizeof(req)) < 0)
c7699875 1026 exit(2);
1027
1028 if (xfrm_state_print(NULL, res_n, (void*)stdout) < 0) {
1029 fprintf(stderr, "An error :-)\n");
1030 exit(1);
1031 }
1032 }
1033
1034 rtnl_close(&rth);
1035
1036 return 0;
1037}
1038
1039/*
1040 * With an existing state of nlmsg, make new nlmsg for deleting the state
1041 * and store it to buffer.
1042 */
6dc9f016 1043static int xfrm_state_keep(const struct sockaddr_nl *who,
50772dc5 1044 struct nlmsghdr *n,
6dc9f016 1045 void *arg)
c7699875 1046{
1047 struct xfrm_buffer *xb = (struct xfrm_buffer *)arg;
1048 struct rtnl_handle *rth = xb->rth;
1049 struct xfrm_usersa_info *xsinfo = NLMSG_DATA(n);
1050 int len = n->nlmsg_len;
1051 struct nlmsghdr *new_n;
1052 struct xfrm_usersa_id *xsid;
1053
1054 if (n->nlmsg_type != XFRM_MSG_NEWSA) {
1055 fprintf(stderr, "Not a state: %08x %08x %08x\n",
1056 n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
1057 return 0;
1058 }
1059
1060 len -= NLMSG_LENGTH(sizeof(*xsinfo));
1061 if (len < 0) {
1062 fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
1063 return -1;
1064 }
1065
1066 if (!xfrm_state_filter_match(xsinfo))
1067 return 0;
1068
1069 if (xb->offset > xb->size) {
9bec1a43 1070 fprintf(stderr, "State buffer overflow\n");
c7699875 1071 return -1;
1072 }
1073
1074 new_n = (struct nlmsghdr *)(xb->buf + xb->offset);
1075 new_n->nlmsg_len = NLMSG_LENGTH(sizeof(*xsid));
1076 new_n->nlmsg_flags = NLM_F_REQUEST;
1077 new_n->nlmsg_type = XFRM_MSG_DELSA;
1078 new_n->nlmsg_seq = ++rth->seq;
1079
1080 xsid = NLMSG_DATA(new_n);
1081 xsid->family = xsinfo->family;
1082 memcpy(&xsid->daddr, &xsinfo->id.daddr, sizeof(xsid->daddr));
1083 xsid->spi = xsinfo->id.spi;
1084 xsid->proto = xsinfo->id.proto;
1085
7ea4f5d3
MN		 1086 addattr_l(new_n, xb->size, XFRMA_SRCADDR, &xsinfo->saddr,
1087 sizeof(xsid->daddr));
1088
c7699875 1089 xb->offset += new_n->nlmsg_len;
1090 xb->nlmsg_count ++;
1091
1092 return 0;
1093}
1094
9bec1a43 1095static int xfrm_state_list_or_deleteall(int argc, char **argv, int deleteall)
c7699875 1096{
1097 char *idp = NULL;
1098 struct rtnl_handle rth;
1099
bd641cd6 1100 if(argc > 0)
1101 filter.use = 1;
c7699875 1102 filter.xsinfo.family = preferred_family;
1103
1104 while (argc > 0) {
1105 if (strcmp(*argv, "mode") == 0) {
1106 NEXT_ARG();
1107 xfrm_mode_parse(&filter.xsinfo.mode, &argc, &argv);
1108
1109 filter.mode_mask = XFRM_FILTER_MASK_FULL;
1110
1111 } else if (strcmp(*argv, "reqid") == 0) {
1112 NEXT_ARG();
1113 xfrm_reqid_parse(&filter.xsinfo.reqid, &argc, &argv);
1114
1115 filter.reqid_mask = XFRM_FILTER_MASK_FULL;
1116
1117 } else if (strcmp(*argv, "flag") == 0) {
1118 NEXT_ARG();
1119 xfrm_state_flag_parse(&filter.xsinfo.flags, &argc, &argv);
1120
1121 filter.state_flags_mask = XFRM_FILTER_MASK_FULL;
1122
1123 } else {
1124 if (idp)
1125 invarg("unknown", *argv);
1126 idp = *argv;
1127
1128 /* ID */
7809c616 1129 xfrm_id_parse(&filter.xsinfo.saddr, &filter.xsinfo.id,
1130 &filter.xsinfo.family, 1, &argc, &argv);
c7699875 1131 if (preferred_family == AF_UNSPEC)
1132 preferred_family = filter.xsinfo.family;
1133 }
1134 argc--; argv++;
1135 }
1136
1137 if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
1138 exit(1);
1139
9bec1a43 1140 if (deleteall) {
c7699875 1141 struct xfrm_buffer xb;
9bec1a43 1142 char buf[NLMSG_DELETEALL_BUF_SIZE];
c7699875 1143 int i;
1144
1145 xb.buf = buf;
1146 xb.size = sizeof(buf);
1147 xb.rth = &rth;
1148
1149 for (i = 0; ; i++) {
782cf01d
ND		 1150 struct {
1151 struct nlmsghdr n;
1152 char buf[NLMSG_BUF_SIZE];
1153 } req = {
1154 .n.nlmsg_len = NLMSG_HDRLEN,
1155 .n.nlmsg_flags = NLM_F_DUMP | NLM_F_REQUEST,
1156 .n.nlmsg_type = XFRM_MSG_GETSA,
1157 .n.nlmsg_seq = rth.dump = ++rth.seq,
1158 };
1159
c7699875 1160 xb.offset = 0;
1161 xb.nlmsg_count = 0;
1162
1163 if (show_stats > 1)
9bec1a43 1164 fprintf(stderr, "Delete-all round = %d\n", i);
c7699875 1165
782cf01d 1166 if (rtnl_send(&rth, (void *)&req, req.n.nlmsg_len) < 0) {
c7699875 1167 perror("Cannot send dump request");
1168 exit(1);
1169 }
1170
cd70f3f5 1171 if (rtnl_dump_filter(&rth, xfrm_state_keep, &xb) < 0) {
9bec1a43 1172 fprintf(stderr, "Delete-all terminated\n");
c7699875 1173 exit(1);
1174 }
1175 if (xb.nlmsg_count == 0) {
1176 if (show_stats > 1)
9bec1a43 1177 fprintf(stderr, "Delete-all completed\n");
c7699875 1178 break;
1179 }
1180
f31a37f7 1181 if (rtnl_send_check(&rth, xb.buf, xb.offset) < 0) {
9bec1a43 1182 perror("Failed to send delete-all request\n");
c7699875 1183 exit(1);
1184 }
1185 if (show_stats > 1)
9bec1a43 1186 fprintf(stderr, "Delete-all nlmsg count = %d\n", xb.nlmsg_count);
c7699875 1187
1188 xb.offset = 0;
1189 xb.nlmsg_count = 0;
1190 }
1191
1192 } else {
f687d73c
ND		 1193 struct xfrm_address_filter addrfilter = {
1194 .saddr = filter.xsinfo.saddr,
1195 .daddr = filter.xsinfo.id.daddr,
1196 .family = filter.xsinfo.family,
1197 .splen = filter.id_src_mask,
1198 .dplen = filter.id_dst_mask,
1199 };
1200 struct {
1201 struct nlmsghdr n;
1202 char buf[NLMSG_BUF_SIZE];
1203 } req = {
1204 .n.nlmsg_len = NLMSG_HDRLEN,
1205 .n.nlmsg_flags = NLM_F_DUMP | NLM_F_REQUEST,
1206 .n.nlmsg_type = XFRM_MSG_GETSA,
1207 .n.nlmsg_seq = rth.dump = ++rth.seq,
1208 };
1209
1210 if (filter.xsinfo.id.proto)
1211 addattr8(&req.n, sizeof(req), XFRMA_PROTO,
1212 filter.xsinfo.id.proto);
1213 addattr_l(&req.n, sizeof(req), XFRMA_ADDRESS_FILTER,
1214 &addrfilter, sizeof(addrfilter));
1215
1216 if (rtnl_send(&rth, (void *)&req, req.n.nlmsg_len) < 0) {
c7699875 1217 perror("Cannot send dump request");
1218 exit(1);
1219 }
1220
cd70f3f5 1221 if (rtnl_dump_filter(&rth, xfrm_state_print, stdout) < 0) {
c7699875 1222 fprintf(stderr, "Dump terminated\n");
1223 exit(1);
1224 }
1225 }
1226
1227 rtnl_close(&rth);
1228
1229 exit(0);
1230}
1231
d1f28cf1 1232static int print_sadinfo(struct nlmsghdr *n, void *arg)
0bb4a4c2 1233{
1234 FILE *fp = (FILE*)arg;
1235 __u32 *f = NLMSG_DATA(n);
1236 struct rtattr *tb[XFRMA_SAD_MAX+1];
1237 struct rtattr *rta;
0bb4a4c2 1238 __u32 *cnt;
1239
1240 int len = n->nlmsg_len;
1241
1242 len -= NLMSG_LENGTH(sizeof(__u32));
1243 if (len < 0) {
1244 fprintf(stderr, "SADinfo: Wrong len %d\n", len);
1245 return -1;
1246 }
1247
1248 rta = XFRMSAPD_RTA(f);
1249 parse_rtattr(tb, XFRMA_SAD_MAX, rta, len);
1250
bdf9e86d 1251 if (tb[XFRMA_SAD_CNT]) {
0bb4a4c2 1252 fprintf(fp,"\t SAD");
bdf9e86d 1253 cnt = (__u32 *)RTA_DATA(tb[XFRMA_SAD_CNT]);
0bb4a4c2 1254 fprintf(fp," count %d", *cnt);
1255 } else {
1256 fprintf(fp,"BAD SAD info returned\n");
1257 return -1;
1258 }
1259
1260 if (show_stats) {
bdf9e86d
SH		 1261 if (tb[XFRMA_SAD_HINFO]) {
1262 struct xfrmu_sadhinfo *si;
0bb4a4c2 1263
bdf9e86d
SH		 1264 if (RTA_PAYLOAD(tb[XFRMA_SAD_HINFO]) < sizeof(*si)) {
1265 fprintf(fp,"BAD SAD length returned\n");
1266 return -1;
1267 }
0612519e 1268
bdf9e86d
SH		 1269 si = RTA_DATA(tb[XFRMA_SAD_HINFO]);
1270 fprintf(fp," (buckets ");
1271 fprintf(fp,"count %d", si->sadhcnt);
1272 fprintf(fp," Max %d", si->sadhmcnt);
1273 fprintf(fp,")");
1274 }
0bb4a4c2 1275 }
1276 fprintf(fp,"\n");
1277
1278 return 0;
1279}
1280
1281static int xfrm_sad_getinfo(int argc, char **argv)
1282{
1283 struct rtnl_handle rth;
1284 struct {
1285 struct nlmsghdr n;
1286 __u32 flags;
1287 char ans[64];
1288 } req;
1289
1290 memset(&req, 0, sizeof(req));
1291 req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.flags));
1292 req.n.nlmsg_flags = NLM_F_REQUEST;
1293 req.n.nlmsg_type = XFRM_MSG_GETSADINFO;
1294 req.flags = 0XFFFFFFFF;
1295
1296 if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
1297 exit(1);
1298
c079e121 1299 if (rtnl_talk(&rth, &req.n, &req.n, sizeof(req)) < 0)
0bb4a4c2 1300 exit(2);
1301
1302 print_sadinfo(&req.n, (void*)stdout);
1303
1304 rtnl_close(&rth);
1305
1306 return 0;
1307}
1308
9bec1a43 1309static int xfrm_state_flush(int argc, char **argv)
bd641cd6 1310{
1311 struct rtnl_handle rth;
1312 struct {
1313 struct nlmsghdr n;
1314 struct xfrm_usersa_flush xsf;
1315 } req;
9bec1a43 1316 char *protop = NULL;
bd641cd6 1317
1318 memset(&req, 0, sizeof(req));
1319
1320 req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xsf));
1321 req.n.nlmsg_flags = NLM_F_REQUEST;
1322 req.n.nlmsg_type = XFRM_MSG_FLUSHSA;
7ea4f5d3 1323 req.xsf.proto = 0;
bd641cd6 1324
9bec1a43
SH		 1325 while (argc > 0) {
1326 if (strcmp(*argv, "proto") == 0) {
1327 int ret;
1328
1329 if (protop)
1330 duparg("proto", *argv);
1331 protop = *argv;
1332
1333 NEXT_ARG();
1334
1335 ret = xfrm_xfrmproto_getbyname(*argv);
1336 if (ret < 0)
e8740e42 1337 invarg("XFRM-PROTO value is invalid", *argv);
9bec1a43
SH		 1338
1339 req.xsf.proto = (__u8)ret;
1340 } else
1341 invarg("unknown", *argv);
1342
1343 argc--; argv++;
1344 }
1345
bd641cd6 1346 if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
1347 exit(1);
1348
1349 if (show_stats > 1)
e8740e42 1350 fprintf(stderr, "Flush state with XFRM-PROTO value \"%s\"\n",
9bec1a43 1351 strxf_xfrmproto(req.xsf.proto));
bd641cd6 1352
c079e121 1353 if (rtnl_talk(&rth, &req.n, NULL, 0) < 0)
bd641cd6 1354 exit(2);
1355
1356 rtnl_close(&rth);
1357
1358 return 0;
1359}
1360
c7699875 1361int do_xfrm_state(int argc, char **argv)
1362{
1363 if (argc < 1)
9bec1a43 1364 return xfrm_state_list_or_deleteall(0, NULL, 0);
c7699875 1365
1366 if (matches(*argv, "add") == 0)
1367 return xfrm_state_modify(XFRM_MSG_NEWSA, 0,
1368 argc-1, argv+1);
1369 if (matches(*argv, "update") == 0)
1370 return xfrm_state_modify(XFRM_MSG_UPDSA, 0,
1371 argc-1, argv+1);
fb7399b2 1372 if (matches(*argv, "allocspi") == 0)
1373 return xfrm_state_allocspi(argc-1, argv+1);
9bec1a43 1374 if (matches(*argv, "delete") == 0)
c7699875 1375 return xfrm_state_get_or_delete(argc-1, argv+1, 1);
9bec1a43
SH		 1376 if (matches(*argv, "deleteall") == 0 || matches(*argv, "delall") == 0)
1377 return xfrm_state_list_or_deleteall(argc-1, argv+1, 1);
c7699875 1378 if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
1379 || matches(*argv, "lst") == 0)
9bec1a43 1380 return xfrm_state_list_or_deleteall(argc-1, argv+1, 0);
c7699875 1381 if (matches(*argv, "get") == 0)
1382 return xfrm_state_get_or_delete(argc-1, argv+1, 0);
9bec1a43
SH		 1383 if (matches(*argv, "flush") == 0)
1384 return xfrm_state_flush(argc-1, argv+1);
0bb4a4c2 1385 if (matches(*argv, "count") == 0) {
1386 return xfrm_sad_getinfo(argc, argv);
1387 }
c7699875 1388 if (matches(*argv, "help") == 0)
1389 usage();
1390 fprintf(stderr, "Command \"%s\" is unknown, try \"ip xfrm state help\".\n", *argv);
1391 exit(-1);
1392}
Upstream mirror of iproute2