1 /* $KAME: ipsec.c,v 1.33 2003/07/25 09:54:32 itojun Exp $ */
4 * SPDX-License-Identifier: BSD-3-Clause
6 * Copyright (c) 2005 NTT Multimedia Communications Laboratories, Inc.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
32 * All rights reserved.
34 * Redistribution and use in source and binary forms, with or without
35 * modification, are permitted provided that the following conditions
37 * 1. Redistributions of source code must retain the above copyright
38 * notice, this list of conditions and the following disclaimer.
39 * 2. Redistributions in binary form must reproduce the above copyright
40 * notice, this list of conditions and the following disclaimer in the
41 * documentation and/or other materials provided with the distribution.
42 * 3. Neither the name of the project nor the names of its contributors
43 * may be used to endorse or promote products derived from this software
44 * without specific prior written permission.
46 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
47 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
48 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
49 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
50 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
51 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
52 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
53 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
54 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
55 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
59 * Copyright (c) 1983, 1988, 1993
60 * The Regents of the University of California. All rights reserved.
62 * Redistribution and use in source and binary forms, with or without
63 * modification, are permitted provided that the following conditions
65 * 1. Redistributions of source code must retain the above copyright
66 * notice, this list of conditions and the following disclaimer.
67 * 2. Redistributions in binary form must reproduce the above copyright
68 * notice, this list of conditions and the following disclaimer in the
69 * documentation and/or other materials provided with the distribution.
70 * 3. Neither the name of the University nor the names of its contributors
71 * may be used to endorse or promote products derived from this software
72 * without specific prior written permission.
74 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
75 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
76 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
77 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
78 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
79 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
80 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
81 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
82 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
83 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
89 static char sccsid[] = "@(#)inet.c 8.5 (Berkeley) 5/24/95";
93 #include <sys/cdefs.h>
94 __FBSDID("$FreeBSD$");
96 #include <sys/param.h>
97 #include <sys/queue.h>
98 #include <sys/socket.h>
99 #include <sys/socketvar.h>
101 #include <netinet/in.h>
104 #include <netipsec/ipsec.h>
105 #include <netipsec/ah_var.h>
106 #include <netipsec/esp_var.h>
107 #include <netipsec/ipcomp_var.h>
115 #include <libxo/xo.h>
124 static struct val2str ipsec_ahnames[] = {
125 { SADB_AALG_NONE, "none", },
126 { SADB_AALG_MD5HMAC, "hmac-md5", },
127 { SADB_AALG_SHA1HMAC, "hmac-sha1", },
128 { SADB_X_AALG_MD5, "md5", },
129 { SADB_X_AALG_SHA, "sha", },
130 { SADB_X_AALG_NULL, "null", },
131 #ifdef SADB_X_AALG_SHA2_256
132 { SADB_X_AALG_SHA2_256, "hmac-sha2-256", },
134 #ifdef SADB_X_AALG_SHA2_384
135 { SADB_X_AALG_SHA2_384, "hmac-sha2-384", },
137 #ifdef SADB_X_AALG_SHA2_512
138 { SADB_X_AALG_SHA2_512, "hmac-sha2-512", },
140 #ifdef SADB_X_AALG_RIPEMD160HMAC
141 { SADB_X_AALG_RIPEMD160HMAC, "hmac-ripemd160", },
143 #ifdef SADB_X_AALG_AES_XCBC_MAC
144 { SADB_X_AALG_AES_XCBC_MAC, "aes-xcbc-mac", },
146 #ifdef SADB_X_AALG_AES128GMAC
147 { SADB_X_AALG_AES128GMAC, "aes-gmac-128", },
149 #ifdef SADB_X_AALG_AES192GMAC
150 { SADB_X_AALG_AES192GMAC, "aes-gmac-192", },
152 #ifdef SADB_X_AALG_AES256GMAC
153 { SADB_X_AALG_AES256GMAC, "aes-gmac-256", },
158 static struct val2str ipsec_espnames[] = {
159 { SADB_EALG_NONE, "none", },
160 { SADB_EALG_DESCBC, "des-cbc", },
161 { SADB_EALG_3DESCBC, "3des-cbc", },
162 { SADB_EALG_NULL, "null", },
163 { SADB_X_EALG_CAST128CBC, "cast128-cbc", },
164 { SADB_X_EALG_BLOWFISHCBC, "blowfish-cbc", },
165 #ifdef SADB_X_EALG_RIJNDAELCBC
166 { SADB_X_EALG_RIJNDAELCBC, "rijndael-cbc", },
168 #ifdef SADB_X_EALG_AESCTR
169 { SADB_X_EALG_AESCTR, "aes-ctr", },
171 #ifdef SADB_X_EALG_AESGCM16
172 { SADB_X_EALG_AESGCM16, "aes-gcm-16", },
177 static struct val2str ipsec_compnames[] = {
178 { SADB_X_CALG_NONE, "none", },
179 { SADB_X_CALG_OUI, "oui", },
180 { SADB_X_CALG_DEFLATE, "deflate", },
181 { SADB_X_CALG_LZS, "lzs", },
185 static void print_ipsecstats(const struct ipsecstat *ipsecstat);
188 print_ipsecstats(const struct ipsecstat *ipsecstat)
190 xo_open_container("ipsec-statistics");
192 #define p(f, m) if (ipsecstat->f || sflag <= 1) \
193 xo_emit(m, (uintmax_t)ipsecstat->f, plural(ipsecstat->f))
194 #define p2(f, m) if (ipsecstat->f || sflag <= 1) \
195 xo_emit(m, (uintmax_t)ipsecstat->f, plurales(ipsecstat->f))
197 p(ips_in_polvio, "\t{:dropped-policy-violation/%ju} "
198 "{N:/inbound packet%s violated process security policy}\n");
199 p(ips_in_nomem, "\t{:dropped-no-memory/%ju} "
200 "{N:/inbound packet%s failed due to insufficient memory}\n");
201 p(ips_in_inval, "\t{:dropped-invalid/%ju} "
202 "{N:/invalid inbound packet%s}\n");
203 p(ips_out_polvio, "\t{:discarded-policy-violation/%ju} "
204 "{N:/outbound packet%s violated process security policy}\n");
205 p(ips_out_nosa, "\t{:discarded-no-sa/%ju} "
206 "{N:/outbound packet%s with no SA available}\n");
207 p(ips_out_nomem, "\t{:discarded-no-memory/%ju} "
208 "{N:/outbound packet%s failed due to insufficient memory}\n");
209 p(ips_out_noroute, "\t{:discarded-no-route/%ju} "
210 "{N:/outbound packet%s with no route available}\n");
211 p(ips_out_inval, "\t{:discarded-invalid/%ju} "
212 "{N:/invalid outbound packet%s}\n");
213 p(ips_out_bundlesa, "\t{:send-bundled-sa/%ju} "
214 "{N:/outbound packet%s with bundled SAs}\n");
215 p(ips_spdcache_hits, "\t{:spdcache-hits/%ju} "
216 "{N:/spd cache hit%s}\n");
217 p2(ips_spdcache_misses, "\t{:spdcache-misses/%ju} "
218 "{N:/spd cache miss%s}\n");
219 p(ips_clcopied, "\t{:clusters-copied-during-clone/%ju} "
220 "{N:/cluster%s copied during clone}\n");
221 p(ips_mbinserted, "\t{:mbufs-inserted/%ju} "
222 "{N:/mbuf%s inserted during makespace}\n");
225 xo_close_container("ipsec-statistics");
229 ipsec_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
231 struct ipsecstat ipsecstat;
233 if (strcmp(name, "ipsec6") == 0) {
234 if (fetch_stats("net.inet6.ipsec6.ipsecstats", off,&ipsecstat,
235 sizeof(ipsecstat), kread_counters) != 0)
238 if (fetch_stats("net.inet.ipsec.ipsecstats", off, &ipsecstat,
239 sizeof(ipsecstat), kread_counters) != 0)
243 xo_emit("{T:/%s}:\n", name);
245 print_ipsecstats(&ipsecstat);
249 static void print_ahstats(const struct ahstat *ahstat);
250 static void print_espstats(const struct espstat *espstat);
251 static void print_ipcompstats(const struct ipcompstat *ipcompstat);
254 * Dump IPSEC statistics structure.
257 ipsec_hist_new(const uint64_t *hist, size_t histmax,
258 const struct val2str *name, const char *title, const char *cname)
262 const struct val2str *p;
265 for (proto = 0; proto < histmax; proto++) {
266 if (hist[proto] <= 0)
270 xo_emit("\t{T:/%s histogram}:\n", title);
273 xo_open_instance(cname);
274 for (p = name; p && p->str; p++) {
275 if (p->val == (int)proto)
279 xo_emit("\t\t{k:name}: {:count/%ju}\n", p->str,
280 (uintmax_t)hist[proto]);
282 xo_emit("\t\t#{k:name/%lu}: {:count/%ju}\n",
283 (unsigned long)proto, (uintmax_t)hist[proto]);
285 xo_close_instance(cname);
288 xo_close_list(cname);
292 print_ahstats(const struct ahstat *ahstat)
294 xo_open_container("ah-statictics");
296 #define p(f, n, m) if (ahstat->f || sflag <= 1) \
297 xo_emit("\t{:" n "/%ju} {N:/" m "}\n", \
298 (uintmax_t)ahstat->f, plural(ahstat->f))
299 #define hist(f, n, t, c) \
300 ipsec_hist_new((f), sizeof(f)/sizeof(f[0]), (n), (t), (c))
302 p(ahs_hdrops, "dropped-short-header",
303 "packet%s shorter than header shows");
304 p(ahs_nopf, "dropped-bad-protocol",
305 "packet%s dropped; protocol family not supported");
306 p(ahs_notdb, "dropped-no-tdb", "packet%s dropped; no TDB");
307 p(ahs_badkcr, "dropped-bad-kcr", "packet%s dropped; bad KCR");
308 p(ahs_qfull, "dropped-queue-full", "packet%s dropped; queue full");
309 p(ahs_noxform, "dropped-no-transform",
310 "packet%s dropped; no transform");
311 p(ahs_wrap, "replay-counter-wraps", "replay counter wrap%s");
312 p(ahs_badauth, "dropped-bad-auth",
313 "packet%s dropped; bad authentication detected");
314 p(ahs_badauthl, "dropped-bad-auth-level",
315 "packet%s dropped; bad authentication length");
316 p(ahs_replay, "possile-replay-detected",
317 "possible replay packet%s detected");
318 p(ahs_input, "received-packets", "packet%s in");
319 p(ahs_output, "send-packets", "packet%s out");
320 p(ahs_invalid, "dropped-bad-tdb", "packet%s dropped; invalid TDB");
321 p(ahs_ibytes, "received-bytes", "byte%s in");
322 p(ahs_obytes, "send-bytes", "byte%s out");
323 p(ahs_toobig, "dropped-too-large",
324 "packet%s dropped; larger than IP_MAXPACKET");
325 p(ahs_pdrops, "dropped-policy-violation",
326 "packet%s blocked due to policy");
327 p(ahs_crypto, "crypto-failures", "crypto processing failure%s");
328 p(ahs_tunnel, "tunnel-failures", "tunnel sanity check failure%s");
329 hist(ahstat->ahs_hist, ipsec_ahnames,
330 "AH output", "ah-output-histogram");
334 xo_close_container("ah-statictics");
338 ah_stats(u_long off, const char *name, int family __unused, int proto __unused)
340 struct ahstat ahstat;
342 if (fetch_stats("net.inet.ah.stats", off, &ahstat,
343 sizeof(ahstat), kread_counters) != 0)
346 xo_emit("{T:/%s}:\n", name);
348 print_ahstats(&ahstat);
352 print_espstats(const struct espstat *espstat)
354 xo_open_container("esp-statictics");
355 #define p(f, n, m) if (espstat->f || sflag <= 1) \
356 xo_emit("\t{:" n "/%ju} {N:/" m "}\n", \
357 (uintmax_t)espstat->f, plural(espstat->f))
358 #define hist(f, n, t, c) \
359 ipsec_hist_new((f), sizeof(f)/sizeof(f[0]), (n), (t), (c));
361 p(esps_hdrops, "dropped-short-header",
362 "packet%s shorter than header shows");
363 p(esps_nopf, "dropped-bad-protocol",
364 "packet%s dropped; protocol family not supported");
365 p(esps_notdb, "dropped-no-tdb", "packet%s dropped; no TDB");
366 p(esps_badkcr, "dropped-bad-kcr", "packet%s dropped; bad KCR");
367 p(esps_qfull, "dropped-queue-full", "packet%s dropped; queue full");
368 p(esps_noxform, "dropped-no-transform",
369 "packet%s dropped; no transform");
370 p(esps_badilen, "dropped-bad-length", "packet%s dropped; bad ilen");
371 p(esps_wrap, "replay-counter-wraps", "replay counter wrap%s");
372 p(esps_badenc, "dropped-bad-crypto",
373 "packet%s dropped; bad encryption detected");
374 p(esps_badauth, "dropped-bad-auth",
375 "packet%s dropped; bad authentication detected");
376 p(esps_replay, "possible-replay-detected",
377 "possible replay packet%s detected");
378 p(esps_input, "received-packets", "packet%s in");
379 p(esps_output, "sent-packets", "packet%s out");
380 p(esps_invalid, "dropped-bad-tdb", "packet%s dropped; invalid TDB");
381 p(esps_ibytes, "receieve-bytes", "byte%s in");
382 p(esps_obytes, "sent-bytes", "byte%s out");
383 p(esps_toobig, "dropped-too-large",
384 "packet%s dropped; larger than IP_MAXPACKET");
385 p(esps_pdrops, "dropped-policy-violation",
386 "packet%s blocked due to policy");
387 p(esps_crypto, "crypto-failures", "crypto processing failure%s");
388 p(esps_tunnel, "tunnel-failures", "tunnel sanity check failure%s");
389 hist(espstat->esps_hist, ipsec_espnames,
390 "ESP output", "esp-output-histogram");
394 xo_close_container("esp-statictics");
398 esp_stats(u_long off, const char *name, int family __unused, int proto __unused)
400 struct espstat espstat;
402 if (fetch_stats("net.inet.esp.stats", off, &espstat,
403 sizeof(espstat), kread_counters) != 0)
406 xo_emit("{T:/%s}:\n", name);
408 print_espstats(&espstat);
412 print_ipcompstats(const struct ipcompstat *ipcompstat)
414 xo_open_container("ipcomp-statictics");
416 #define p(f, n, m) if (ipcompstat->f || sflag <= 1) \
417 xo_emit("\t{:" n "/%ju} {N:/" m "}\n", \
418 (uintmax_t)ipcompstat->f, plural(ipcompstat->f))
419 #define hist(f, n, t, c) \
420 ipsec_hist_new((f), sizeof(f)/sizeof(f[0]), (n), (t), (c));
422 p(ipcomps_hdrops, "dropped-short-header",
423 "packet%s shorter than header shows");
424 p(ipcomps_nopf, "dropped-bad-protocol",
425 "packet%s dropped; protocol family not supported");
426 p(ipcomps_notdb, "dropped-no-tdb", "packet%s dropped; no TDB");
427 p(ipcomps_badkcr, "dropped-bad-kcr", "packet%s dropped; bad KCR");
428 p(ipcomps_qfull, "dropped-queue-full", "packet%s dropped; queue full");
429 p(ipcomps_noxform, "dropped-no-transform",
430 "packet%s dropped; no transform");
431 p(ipcomps_wrap, "replay-counter-wraps", "replay counter wrap%s");
432 p(ipcomps_input, "receieve-packets", "packet%s in");
433 p(ipcomps_output, "sent-packets", "packet%s out");
434 p(ipcomps_invalid, "dropped-bad-tdb", "packet%s dropped; invalid TDB");
435 p(ipcomps_ibytes, "receieved-bytes", "byte%s in");
436 p(ipcomps_obytes, "sent-bytes", "byte%s out");
437 p(ipcomps_toobig, "dropped-too-large",
438 "packet%s dropped; larger than IP_MAXPACKET");
439 p(ipcomps_pdrops, "dropped-policy-violation",
440 "packet%s blocked due to policy");
441 p(ipcomps_crypto, "crypto-failure", "crypto processing failure%s");
442 hist(ipcompstat->ipcomps_hist, ipsec_compnames,
443 "COMP output", "comp-output-histogram");
444 p(ipcomps_threshold, "sent-uncompressed-small-packets",
445 "packet%s sent uncompressed; size < compr. algo. threshold");
446 p(ipcomps_uncompr, "sent-uncompressed-useless-packets",
447 "packet%s sent uncompressed; compression was useless");
451 xo_close_container("ipcomp-statictics");
455 ipcomp_stats(u_long off, const char *name, int family __unused,
458 struct ipcompstat ipcompstat;
460 if (fetch_stats("net.inet.ipcomp.stats", off, &ipcompstat,
461 sizeof(ipcompstat), kread_counters) != 0)
464 xo_emit("{T:/%s}:\n", name);
466 print_ipcompstats(&ipcompstat);