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9c859447 1/*
ee37ac02 2 * Copyright (c) 2008-2012, 2021 Apple Inc. All rights reserved.
9c859447
A
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
7ba0088d
A
28/* $FreeBSD: src/usr.bin/netstat/ipsec.c,v 1.1.2.3 2001/08/10 09:07:09 ru Exp $ */
29/* $NetBSD: inet.c,v 1.35.2.1 1999/04/29 14:57:08 perry Exp $ */
30/* $KAME: ipsec.c,v 1.25 2001/03/12 09:04:39 itojun Exp $ */
31
32/*
33 * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
34 * All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 * 1. Redistributions of source code must retain the above copyright
40 * notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce the above copyright
42 * notice, this list of conditions and the following disclaimer in the
43 * documentation and/or other materials provided with the distribution.
44 * 3. Neither the name of the project nor the names of its contributors
45 * may be used to endorse or promote products derived from this software
46 * without specific prior written permission.
47 *
48 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
51 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
58 * SUCH DAMAGE.
59 */
60
61/*
62 * Copyright (c) 1983, 1988, 1993
63 * The Regents of the University of California. All rights reserved.
64 *
65 * Redistribution and use in source and binary forms, with or without
66 * modification, are permitted provided that the following conditions
67 * are met:
68 * 1. Redistributions of source code must retain the above copyright
69 * notice, this list of conditions and the following disclaimer.
70 * 2. Redistributions in binary form must reproduce the above copyright
71 * notice, this list of conditions and the following disclaimer in the
72 * documentation and/or other materials provided with the distribution.
73 * 3. All advertising materials mentioning features or use of this software
74 * must display the following acknowledgement:
75 * This product includes software developed by the University of
76 * California, Berkeley and its contributors.
77 * 4. Neither the name of the University nor the names of its contributors
78 * may be used to endorse or promote products derived from this software
79 * without specific prior written permission.
80 *
81 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
82 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
83 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
84 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
85 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
86 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
87 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
88 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
89 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
90 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
91 * SUCH DAMAGE.
92 */
93
7ba0088d
A
94#include <sys/param.h>
95#include <sys/queue.h>
96#include <sys/socket.h>
2b484d24 97#include <sys/sysctl.h>
7ba0088d
A
98
99#include <netinet/in.h>
100
101#ifdef IPSEC
102#include <netinet6/ipsec.h>
103#include <netkey/keysock.h>
104#endif
105
106#include <stdio.h>
107#include <string.h>
108#include <unistd.h>
109#include "netstat.h"
110
b8dff150 111#if defined(__APPLE__) && !defined(__unused)
7ba0088d
A
112#define __unused
113#endif
114/*
115 * portability issues:
116 * - bsdi[34] uses PLURAL(), not plural().
117 * - freebsd2 can't print "unsigned long long" properly.
118 */
119/*
120 * XXX see PORTABILITY for the twist
121 */
122#define LLU "%llu"
123#define CAST unsigned long long
124
125#ifdef IPSEC
126struct val2str {
127 int val;
128 const char *str;
129};
130
131static struct val2str ipsec_ahnames[] = {
132 { SADB_AALG_NONE, "none", },
133 { SADB_AALG_MD5HMAC, "hmac-md5", },
134 { SADB_AALG_SHA1HMAC, "hmac-sha1", },
135 { SADB_X_AALG_MD5, "md5", },
136 { SADB_X_AALG_SHA, "sha", },
137 { SADB_X_AALG_NULL, "null", },
138#ifdef SADB_X_AALG_SHA2_256
139 { SADB_X_AALG_SHA2_256, "hmac-sha2-256", },
140#endif
141#ifdef SADB_X_AALG_SHA2_384
142 { SADB_X_AALG_SHA2_384, "hmac-sha2-384", },
143#endif
144#ifdef SADB_X_AALG_SHA2_512
145 { SADB_X_AALG_SHA2_512, "hmac-sha2-512", },
146#endif
147 { -1, NULL },
148};
149
150static struct val2str ipsec_espnames[] = {
151 { SADB_EALG_NONE, "none", },
152 { SADB_EALG_DESCBC, "des-cbc", },
153 { SADB_EALG_3DESCBC, "3des-cbc", },
154 { SADB_EALG_NULL, "null", },
155#ifdef SADB_X_EALG_RC5CBC
156 { SADB_X_EALG_RC5CBC, "rc5-cbc", },
157#endif
158 { SADB_X_EALG_CAST128CBC, "cast128-cbc", },
159 { SADB_X_EALG_BLOWFISHCBC, "blowfish-cbc", },
160#ifdef SADB_X_EALG_RIJNDAELCBC
161 { SADB_X_EALG_RIJNDAELCBC, "rijndael-cbc", },
ee37ac02
A
162#endif
163#ifdef SADB_X_EALG_AES_GCM
164 { SADB_X_EALG_AES_GCM, "aes-gcm", },
165#endif
166#ifdef SADB_X_EALG_CHACHA20POLY1305
167 { SADB_X_EALG_CHACHA20POLY1305, "chacha20-poly1305", },
7ba0088d
A
168#endif
169 { -1, NULL },
170};
171
172static struct val2str ipsec_compnames[] = {
173 { SADB_X_CALG_NONE, "none", },
174 { SADB_X_CALG_OUI, "oui", },
175 { SADB_X_CALG_DEFLATE, "deflate", },
176 { SADB_X_CALG_LZS, "lzs", },
177 { -1, NULL },
178};
179
180static const char *pfkey_msgtypenames[] = {
181 "reserved", "getspi", "update", "add", "delete",
182 "get", "acquire", "register", "expire", "flush",
183 "dump", "x_promisc", "x_pchange", "x_spdupdate", "x_spdadd",
184 "x_spddelete", "x_spdget", "x_spdacquire", "x_spddump", "x_spdflush",
185 "x_spdsetidx", "x_spdexpire", "x_spddelete2"
186};
187
b8dff150 188static struct ipsecstat pipsecstat;
7ba0088d
A
189static struct ipsecstat ipsecstat;
190
191static void print_ipsecstats (void);
192static const char *pfkey_msgtype_names (int);
b8dff150
A
193static void ipsec_hist (const u_quad_t *, const u_quad_t *, size_t,
194 const struct val2str *, const char *);
7ba0088d
A
195
196/*
197 * Dump IPSEC statistics structure.
198 */
199static void
200ipsec_hist(const u_quad_t *hist,
b8dff150 201 const u_quad_t *phist,
7ba0088d
A
202 size_t histmax,
203 const struct val2str *name,
204 const char *title)
205{
206 int first;
207 size_t proto;
208 const struct val2str *p;
209
210 first = 1;
211 for (proto = 0; proto < histmax; proto++) {
b8dff150 212 if ((hist[proto] - phist[proto]) <= 0)
7ba0088d
A
213 continue;
214 if (first) {
215 printf("\t%s histogram:\n", title);
216 first = 0;
217 }
218 for (p = name; p && p->str; p++) {
219 if (p->val == (int)proto)
220 break;
221 }
222 if (p && p->str) {
b8dff150
A
223 printf("\t\t%s: " LLU "\n", p->str,
224 (CAST)hist[proto] - (CAST)phist[proto]);
7ba0088d
A
225 } else {
226 printf("\t\t#%ld: " LLU "\n", (long)proto,
b8dff150 227 (CAST)hist[proto] - (CAST)phist[proto]);
7ba0088d
A
228 }
229 }
230}
231
232static void
233print_ipsecstats(void)
234{
b8dff150
A
235#define IPSECDIFF(f) (ipsecstat.f - pipsecstat.f)
236#define p(f, m) if (IPSECDIFF(f) || sflag <= 1) \
237 printf(m, (CAST)IPSECDIFF(f), plural(IPSECDIFF(f)))
7ba0088d 238#define hist(f, n, t) \
b8dff150
A
239 ipsec_hist(ipsecstat.f, pipsecstat.f, \
240 sizeof(ipsecstat.f)/sizeof(ipsecstat.f[0]), (n), (t));
7ba0088d 241
9dc66a05
A
242 if (interval && vflag > 0)
243 print_time();
244
7ba0088d
A
245 p(in_success, "\t" LLU " inbound packet%s processed successfully\n");
246 p(in_polvio, "\t" LLU " inbound packet%s violated process security "
247 "policy\n");
248 p(in_nosa, "\t" LLU " inbound packet%s with no SA available\n");
249 p(in_inval, "\t" LLU " invalid inbound packet%s\n");
250 p(in_nomem, "\t" LLU " inbound packet%s failed due to insufficient memory\n");
251 p(in_badspi, "\t" LLU " inbound packet%s failed getting SPI\n");
252 p(in_ahreplay, "\t" LLU " inbound packet%s failed on AH replay check\n");
253 p(in_espreplay, "\t" LLU " inbound packet%s failed on ESP replay check\n");
254 p(in_ahauthsucc, "\t" LLU " inbound packet%s considered authentic\n");
255 p(in_ahauthfail, "\t" LLU " inbound packet%s failed on authentication\n");
b8dff150
A
256 hist(in_ahhist, ipsec_ahnames, "AH input");
257 hist(in_esphist, ipsec_espnames, "ESP input");
258 hist(in_comphist, ipsec_compnames, "IPComp input");
7ba0088d
A
259
260 p(out_success, "\t" LLU " outbound packet%s processed successfully\n");
261 p(out_polvio, "\t" LLU " outbound packet%s violated process security "
262 "policy\n");
263 p(out_nosa, "\t" LLU " outbound packet%s with no SA available\n");
264 p(out_inval, "\t" LLU " invalid outbound packet%s\n");
265 p(out_nomem, "\t" LLU " outbound packet%s failed due to insufficient memory\n");
266 p(out_noroute, "\t" LLU " outbound packet%s with no route\n");
b8dff150
A
267 hist(out_ahhist, ipsec_ahnames, "AH output");
268 hist(out_esphist, ipsec_espnames, "ESP output");
269 hist(out_comphist, ipsec_compnames, "IPComp output");
270#undef IPSECDIFF
7ba0088d
A
271#undef p
272#undef hist
273}
274
275void
9c859447 276ipsec_stats(uint32_t off __unused, char *name, int af __unused)
7ba0088d 277{
2b484d24
A
278 size_t len;
279
280 len = sizeof(struct ipsecstat);
b8dff150 281 if (strcmp(name, "ipsec") == 0) {
2b484d24
A
282 if (sysctlbyname("net.inet.ipsec.stats", &ipsecstat, &len, 0, 0) == -1)
283 return;
b8dff150 284 } else if (strcmp(name, "ipsec6") == 0) {
2b484d24
A
285 if (sysctlbyname("net.inet6.ipsec6.stats", &ipsecstat, &len, 0, 0) == -1)
286 return;
b8dff150 287 } else
7ba0088d
A
288 return;
289 printf ("%s:\n", name);
7ba0088d
A
290
291 print_ipsecstats();
b8dff150
A
292
293 if (interval > 0)
294 bcopy(&ipsecstat, &pipsecstat, len);
7ba0088d
A
295}
296
297static const char *
298pfkey_msgtype_names(int x)
299{
300 const int max =
301 sizeof(pfkey_msgtypenames)/sizeof(pfkey_msgtypenames[0]);
302 static char buf[10];
303
304 if (x < max && pfkey_msgtypenames[x])
305 return pfkey_msgtypenames[x];
306 snprintf(buf, sizeof(buf), "#%d", x);
307 return buf;
308}
309
310void
9c859447 311pfkey_stats(uint32_t off __unused, char *name, int af __unused)
7ba0088d 312{
b8dff150 313 static struct pfkeystat ppfkeystat;
7ba0088d
A
314 struct pfkeystat pfkeystat;
315 unsigned first, type;
2b484d24
A
316 size_t len;
317
318 len = sizeof(struct pfkeystat);
319 if (sysctlbyname("net.key.pfkeystat", &pfkeystat, &len, 0, 0) == -1)
7ba0088d 320 return;
9dc66a05
A
321 if (interval && vflag > 0)
322 print_time();
7ba0088d 323 printf ("%s:\n", name);
7ba0088d 324
b8dff150
A
325#define PFKEYDIFF(f) (pfkeystat.f - ppfkeystat.f)
326#define p(f, m) if (PFKEYDIFF(f) || sflag <= 1) \
327 printf(m, (CAST)PFKEYDIFF(f), plural(PFKEYDIFF(f)))
7ba0088d
A
328
329 /* kernel -> userland */
330 p(out_total, "\t" LLU " request%s sent to userland\n");
331 p(out_bytes, "\t" LLU " byte%s sent to userland\n");
332 for (first = 1, type = 0;
333 type < sizeof(pfkeystat.out_msgtype)/sizeof(pfkeystat.out_msgtype[0]);
334 type++) {
b8dff150 335 if (PFKEYDIFF(out_msgtype[type]) <= 0)
7ba0088d
A
336 continue;
337 if (first) {
338 printf("\thistogram by message type:\n");
339 first = 0;
340 }
341 printf("\t\t%s: " LLU "\n", pfkey_msgtype_names(type),
b8dff150 342 (CAST)PFKEYDIFF(out_msgtype[type]));
7ba0088d
A
343 }
344 p(out_invlen, "\t" LLU " message%s with invalid length field\n");
345 p(out_invver, "\t" LLU " message%s with invalid version field\n");
346 p(out_invmsgtype, "\t" LLU " message%s with invalid message type field\n");
347 p(out_tooshort, "\t" LLU " message%s too short\n");
348 p(out_nomem, "\t" LLU " message%s with memory allocation failure\n");
349 p(out_dupext, "\t" LLU " message%s with duplicate extension\n");
350 p(out_invexttype, "\t" LLU " message%s with invalid extension type\n");
351 p(out_invsatype, "\t" LLU " message%s with invalid sa type\n");
352 p(out_invaddr, "\t" LLU " message%s with invalid address extension\n");
353
354 /* userland -> kernel */
355 p(in_total, "\t" LLU " request%s sent from userland\n");
356 p(in_bytes, "\t" LLU " byte%s sent from userland\n");
357 for (first = 1, type = 0;
358 type < sizeof(pfkeystat.in_msgtype)/sizeof(pfkeystat.in_msgtype[0]);
359 type++) {
b8dff150 360 if (PFKEYDIFF(in_msgtype[type]) <= 0)
7ba0088d
A
361 continue;
362 if (first) {
363 printf("\thistogram by message type:\n");
364 first = 0;
365 }
366 printf("\t\t%s: " LLU "\n", pfkey_msgtype_names(type),
b8dff150 367 (CAST)PFKEYDIFF(in_msgtype[type]));
7ba0088d
A
368 }
369 p(in_msgtarget[KEY_SENDUP_ONE],
370 "\t" LLU " message%s toward single socket\n");
371 p(in_msgtarget[KEY_SENDUP_ALL],
372 "\t" LLU " message%s toward all sockets\n");
373 p(in_msgtarget[KEY_SENDUP_REGISTERED],
374 "\t" LLU " message%s toward registered sockets\n");
375 p(in_nomem, "\t" LLU " message%s with memory allocation failure\n");
b8dff150
A
376
377 if (interval > 0)
378 bcopy(&pfkeystat, &ppfkeystat, len);
379#undef PFKEYDIFF
7ba0088d
A
380#undef p
381}
382#endif /*IPSEC*/