ipsec.c revision 102975
1/* $NetBSD: inet.c,v 1.35.2.1 1999/04/29 14:57:08 perry Exp $ */ 2/* $KAME: ipsec.c,v 1.25 2001/03/12 09:04:39 itojun Exp $ */ 3 4/* 5 * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the project nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33/* 34 * Copyright (c) 1983, 1988, 1993 35 * The Regents of the University of California. All rights reserved. 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 1. Redistributions of source code must retain the above copyright 41 * notice, this list of conditions and the following disclaimer. 42 * 2. Redistributions in binary form must reproduce the above copyright 43 * notice, this list of conditions and the following disclaimer in the 44 * documentation and/or other materials provided with the distribution. 45 * 3. All advertising materials mentioning features or use of this software 46 * must display the following acknowledgement: 47 * This product includes software developed by the University of 48 * California, Berkeley and its contributors. 49 * 4. Neither the name of the University nor the names of its contributors 50 * may be used to endorse or promote products derived from this software 51 * without specific prior written permission. 52 * 53 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 54 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 55 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 56 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 57 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 58 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 59 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 60 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 61 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 62 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 63 * SUCH DAMAGE. 64 */ 65 66#include <sys/cdefs.h> 67#ifndef lint 68/* 69static char sccsid[] = "@(#)inet.c 8.5 (Berkeley) 5/24/95"; 70*/ 71static const char rcsid[] = 72 "$FreeBSD: head/usr.bin/netstat/ipsec.c 102975 2002-09-05 17:06:51Z dwmalone $"; 73#endif /* not lint */ 74 75#include <sys/param.h> 76#include <sys/queue.h> 77#include <sys/socket.h> 78 79#include <netinet/in.h> 80 81#ifdef IPSEC 82#include <netinet6/ipsec.h> 83#include <netkey/keysock.h> 84#endif 85 86#include <stdio.h> 87#include <string.h> 88#include <unistd.h> 89#include "netstat.h" 90 91/* 92 * portability issues: 93 * - bsdi[34] uses PLURAL(), not plural(). 94 * - freebsd2 can't print "unsigned long long" properly. 95 */ 96/* 97 * XXX see PORTABILITY for the twist 98 */ 99#define LLU "%llu" 100#define CAST unsigned long long 101 102#ifdef IPSEC 103struct val2str { 104 int val; 105 const char *str; 106}; 107 108static struct val2str ipsec_ahnames[] = { 109 { SADB_AALG_NONE, "none", }, 110 { SADB_AALG_MD5HMAC, "hmac-md5", }, 111 { SADB_AALG_SHA1HMAC, "hmac-sha1", }, 112 { SADB_X_AALG_MD5, "md5", }, 113 { SADB_X_AALG_SHA, "sha", }, 114 { SADB_X_AALG_NULL, "null", }, 115#ifdef SADB_X_AALG_SHA2_256 116 { SADB_X_AALG_SHA2_256, "hmac-sha2-256", }, 117#endif 118#ifdef SADB_X_AALG_SHA2_384 119 { SADB_X_AALG_SHA2_384, "hmac-sha2-384", }, 120#endif 121#ifdef SADB_X_AALG_SHA2_512 122 { SADB_X_AALG_SHA2_512, "hmac-sha2-512", }, 123#endif 124 { -1, NULL }, 125}; 126 127static struct val2str ipsec_espnames[] = { 128 { SADB_EALG_NONE, "none", }, 129 { SADB_EALG_DESCBC, "des-cbc", }, 130 { SADB_EALG_3DESCBC, "3des-cbc", }, 131 { SADB_EALG_NULL, "null", }, 132#ifdef SADB_X_EALG_RC5CBC 133 { SADB_X_EALG_RC5CBC, "rc5-cbc", }, 134#endif 135 { SADB_X_EALG_CAST128CBC, "cast128-cbc", }, 136 { SADB_X_EALG_BLOWFISHCBC, "blowfish-cbc", }, 137#ifdef SADB_X_EALG_RIJNDAELCBC 138 { SADB_X_EALG_RIJNDAELCBC, "rijndael-cbc", }, 139#endif 140 { -1, NULL }, 141}; 142 143static struct val2str ipsec_compnames[] = { 144 { SADB_X_CALG_NONE, "none", }, 145 { SADB_X_CALG_OUI, "oui", }, 146 { SADB_X_CALG_DEFLATE, "deflate", }, 147 { SADB_X_CALG_LZS, "lzs", }, 148 { -1, NULL }, 149}; 150 151static const char *pfkey_msgtypenames[] = { 152 "reserved", "getspi", "update", "add", "delete", 153 "get", "acquire", "register", "expire", "flush", 154 "dump", "x_promisc", "x_pchange", "x_spdupdate", "x_spdadd", 155 "x_spddelete", "x_spdget", "x_spdacquire", "x_spddump", "x_spdflush", 156 "x_spdsetidx", "x_spdexpire", "x_spddelete2" 157}; 158 159static struct ipsecstat ipsecstat; 160 161static void print_ipsecstats (void); 162static const char *pfkey_msgtype_names (int); 163static void ipsec_hist (const u_quad_t *, size_t, const struct val2str *, 164 const char *); 165 166/* 167 * Dump IPSEC statistics structure. 168 */ 169static void 170ipsec_hist(const u_quad_t *hist, 171 size_t histmax, 172 const struct val2str *name, 173 const char *title) 174{ 175 int first; 176 size_t proto; 177 const struct val2str *p; 178 179 first = 1; 180 for (proto = 0; proto < histmax; proto++) { 181 if (hist[proto] <= 0) 182 continue; 183 if (first) { 184 printf("\t%s histogram:\n", title); 185 first = 0; 186 } 187 for (p = name; p && p->str; p++) { 188 if (p->val == (int)proto) 189 break; 190 } 191 if (p && p->str) { 192 printf("\t\t%s: " LLU "\n", p->str, (CAST)hist[proto]); 193 } else { 194 printf("\t\t#%ld: " LLU "\n", (long)proto, 195 (CAST)hist[proto]); 196 } 197 } 198} 199 200static void 201print_ipsecstats(void) 202{ 203#define p(f, m) if (ipsecstat.f || sflag <= 1) \ 204 printf(m, (CAST)ipsecstat.f, plural(ipsecstat.f)) 205#define hist(f, n, t) \ 206 ipsec_hist((f), sizeof(f)/sizeof(f[0]), (n), (t)); 207 208 p(in_success, "\t" LLU " inbound packet%s processed successfully\n"); 209 p(in_polvio, "\t" LLU " inbound packet%s violated process security " 210 "policy\n"); 211 p(in_nosa, "\t" LLU " inbound packet%s with no SA available\n"); 212 p(in_inval, "\t" LLU " invalid inbound packet%s\n"); 213 p(in_nomem, "\t" LLU " inbound packet%s failed due to insufficient memory\n"); 214 p(in_badspi, "\t" LLU " inbound packet%s failed getting SPI\n"); 215 p(in_ahreplay, "\t" LLU " inbound packet%s failed on AH replay check\n"); 216 p(in_espreplay, "\t" LLU " inbound packet%s failed on ESP replay check\n"); 217 p(in_ahauthsucc, "\t" LLU " inbound packet%s considered authentic\n"); 218 p(in_ahauthfail, "\t" LLU " inbound packet%s failed on authentication\n"); 219 hist(ipsecstat.in_ahhist, ipsec_ahnames, "AH input"); 220 hist(ipsecstat.in_esphist, ipsec_espnames, "ESP input"); 221 hist(ipsecstat.in_comphist, ipsec_compnames, "IPComp input"); 222 223 p(out_success, "\t" LLU " outbound packet%s processed successfully\n"); 224 p(out_polvio, "\t" LLU " outbound packet%s violated process security " 225 "policy\n"); 226 p(out_nosa, "\t" LLU " outbound packet%s with no SA available\n"); 227 p(out_inval, "\t" LLU " invalid outbound packet%s\n"); 228 p(out_nomem, "\t" LLU " outbound packet%s failed due to insufficient memory\n"); 229 p(out_noroute, "\t" LLU " outbound packet%s with no route\n"); 230 hist(ipsecstat.out_ahhist, ipsec_ahnames, "AH output"); 231 hist(ipsecstat.out_esphist, ipsec_espnames, "ESP output"); 232 hist(ipsecstat.out_comphist, ipsec_compnames, "IPComp output"); 233#undef p 234#undef hist 235} 236 237void 238ipsec_stats(u_long off __unused, const char *name, int af1 __unused) 239{ 240 if (off == 0) 241 return; 242 printf ("%s:\n", name); 243 kread(off, (char *)&ipsecstat, sizeof (ipsecstat)); 244 245 print_ipsecstats(); 246} 247 248static const char * 249pfkey_msgtype_names(int x) 250{ 251 const int max = 252 sizeof(pfkey_msgtypenames)/sizeof(pfkey_msgtypenames[0]); 253 static char buf[10]; 254 255 if (x < max && pfkey_msgtypenames[x]) 256 return pfkey_msgtypenames[x]; 257 snprintf(buf, sizeof(buf), "#%d", x); 258 return buf; 259} 260 261void 262pfkey_stats(u_long off __unused, const char *name, int af1 __unused) 263{ 264 struct pfkeystat pfkeystat; 265 unsigned first, type; 266 267 if (off == 0) 268 return; 269 printf ("%s:\n", name); 270 kread(off, (char *)&pfkeystat, sizeof(pfkeystat)); 271 272#define p(f, m) if (pfkeystat.f || sflag <= 1) \ 273 printf(m, (CAST)pfkeystat.f, plural(pfkeystat.f)) 274 275 /* kernel -> userland */ 276 p(out_total, "\t" LLU " request%s sent to userland\n"); 277 p(out_bytes, "\t" LLU " byte%s sent to userland\n"); 278 for (first = 1, type = 0; 279 type < sizeof(pfkeystat.out_msgtype)/sizeof(pfkeystat.out_msgtype[0]); 280 type++) { 281 if (pfkeystat.out_msgtype[type] <= 0) 282 continue; 283 if (first) { 284 printf("\thistogram by message type:\n"); 285 first = 0; 286 } 287 printf("\t\t%s: " LLU "\n", pfkey_msgtype_names(type), 288 (CAST)pfkeystat.out_msgtype[type]); 289 } 290 p(out_invlen, "\t" LLU " message%s with invalid length field\n"); 291 p(out_invver, "\t" LLU " message%s with invalid version field\n"); 292 p(out_invmsgtype, "\t" LLU " message%s with invalid message type field\n"); 293 p(out_tooshort, "\t" LLU " message%s too short\n"); 294 p(out_nomem, "\t" LLU " message%s with memory allocation failure\n"); 295 p(out_dupext, "\t" LLU " message%s with duplicate extension\n"); 296 p(out_invexttype, "\t" LLU " message%s with invalid extension type\n"); 297 p(out_invsatype, "\t" LLU " message%s with invalid sa type\n"); 298 p(out_invaddr, "\t" LLU " message%s with invalid address extension\n"); 299 300 /* userland -> kernel */ 301 p(in_total, "\t" LLU " request%s sent from userland\n"); 302 p(in_bytes, "\t" LLU " byte%s sent from userland\n"); 303 for (first = 1, type = 0; 304 type < sizeof(pfkeystat.in_msgtype)/sizeof(pfkeystat.in_msgtype[0]); 305 type++) { 306 if (pfkeystat.in_msgtype[type] <= 0) 307 continue; 308 if (first) { 309 printf("\thistogram by message type:\n"); 310 first = 0; 311 } 312 printf("\t\t%s: " LLU "\n", pfkey_msgtype_names(type), 313 (CAST)pfkeystat.in_msgtype[type]); 314 } 315 p(in_msgtarget[KEY_SENDUP_ONE], 316 "\t" LLU " message%s toward single socket\n"); 317 p(in_msgtarget[KEY_SENDUP_ALL], 318 "\t" LLU " message%s toward all sockets\n"); 319 p(in_msgtarget[KEY_SENDUP_REGISTERED], 320 "\t" LLU " message%s toward registered sockets\n"); 321 p(in_nomem, "\t" LLU " message%s with memory allocation failure\n"); 322#undef p 323} 324#endif /*IPSEC*/ 325