1 /* $FreeBSD$ */ 2 /* $NetBSD: inet.c,v 1.35.2.1 1999/04/29 14:57:08 perry Exp $ */ 3 /* $KAME: ipsec.c,v 1.25 2001/03/12 09:04:39 itojun Exp $ */ 4 5 /* 6 * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 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. 17 * 3. Neither the name of the project nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 /* 35 * Copyright (c) 1983, 1988, 1993 36 * The Regents of the University of California. All rights reserved. 37 * 38 * Redistribution and use in source and binary forms, with or without 39 * modification, are permitted provided that the following conditions 40 * are met: 41 * 1. Redistributions of source code must retain the above copyright 42 * notice, this list of conditions and the following disclaimer. 43 * 2. Redistributions in binary form must reproduce the above copyright 44 * notice, this list of conditions and the following disclaimer in the 45 * documentation and/or other materials provided with the distribution. 46 * 3. All advertising materials mentioning features or use of this software 47 * must display the following acknowledgement: 48 * This product includes software developed by the University of 49 * California, Berkeley and its contributors. 50 * 4. Neither the name of the University nor the names of its contributors 51 * may be used to endorse or promote products derived from this software 52 * without specific prior written permission. 53 * 54 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 55 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 56 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 57 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 58 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 59 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 60 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 61 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 62 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 63 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 64 * SUCH DAMAGE. 65 */ 66 67 #include <sys/cdefs.h> 68 #ifndef lint 69 /* 70 static char sccsid[] = "@(#)inet.c 8.5 (Berkeley) 5/24/95"; 71 */ 72 static const char rcsid[] = 73 "$FreeBSD$"; 74 #endif /* not lint */ 75 76 #include <sys/param.h> 77 #include <sys/queue.h> 78 #include <sys/socket.h> 79 80 #include <netinet/in.h> 81 82 #ifdef IPSEC 83 #include <netinet6/ipsec.h> 84 #include <netkey/keysock.h> 85 #endif 86 87 #include <stdio.h> 88 #include <string.h> 89 #include <unistd.h> 90 #include "netstat.h" 91 92 /* 93 * portability issues: 94 * - bsdi[34] uses PLURAL(), not plural(). 95 * - freebsd2 can't print "unsigned long long" properly. 96 */ 97 /* 98 * XXX see PORTABILITY for the twist 99 */ 100 #define LLU "%llu" 101 #define CAST unsigned long long 102 103 #ifdef IPSEC 104 struct val2str { 105 int val; 106 const char *str; 107 }; 108 109 static struct val2str ipsec_ahnames[] = { 110 { SADB_AALG_NONE, "none", }, 111 { SADB_AALG_MD5HMAC, "hmac-md5", }, 112 { SADB_AALG_SHA1HMAC, "hmac-sha1", }, 113 { SADB_X_AALG_MD5, "md5", }, 114 { SADB_X_AALG_SHA, "sha", }, 115 { SADB_X_AALG_NULL, "null", }, 116 #ifdef SADB_X_AALG_SHA2_256 117 { SADB_X_AALG_SHA2_256, "hmac-sha2-256", }, 118 #endif 119 #ifdef SADB_X_AALG_SHA2_384 120 { SADB_X_AALG_SHA2_384, "hmac-sha2-384", }, 121 #endif 122 #ifdef SADB_X_AALG_SHA2_512 123 { SADB_X_AALG_SHA2_512, "hmac-sha2-512", }, 124 #endif 125 { -1, NULL }, 126 }; 127 128 static struct val2str ipsec_espnames[] = { 129 { SADB_EALG_NONE, "none", }, 130 { SADB_EALG_DESCBC, "des-cbc", }, 131 { SADB_EALG_3DESCBC, "3des-cbc", }, 132 { SADB_EALG_NULL, "null", }, 133 #ifdef SADB_X_EALG_RC5CBC 134 { SADB_X_EALG_RC5CBC, "rc5-cbc", }, 135 #endif 136 { SADB_X_EALG_CAST128CBC, "cast128-cbc", }, 137 { SADB_X_EALG_BLOWFISHCBC, "blowfish-cbc", }, 138 #ifdef SADB_X_EALG_RIJNDAELCBC 139 { SADB_X_EALG_RIJNDAELCBC, "rijndael-cbc", }, 140 #endif 141 { -1, NULL }, 142 }; 143 144 static struct val2str ipsec_compnames[] = { 145 { SADB_X_CALG_NONE, "none", }, 146 { SADB_X_CALG_OUI, "oui", }, 147 { SADB_X_CALG_DEFLATE, "deflate", }, 148 { SADB_X_CALG_LZS, "lzs", }, 149 { -1, NULL }, 150 }; 151 152 static const char *pfkey_msgtypenames[] = { 153 "reserved", "getspi", "update", "add", "delete", 154 "get", "acquire", "register", "expire", "flush", 155 "dump", "x_promisc", "x_pchange", "x_spdupdate", "x_spdadd", 156 "x_spddelete", "x_spdget", "x_spdacquire", "x_spddump", "x_spdflush", 157 "x_spdsetidx", "x_spdexpire", "x_spddelete2" 158 }; 159 160 static struct ipsecstat ipsecstat; 161 162 static void print_ipsecstats (void); 163 static const char *pfkey_msgtype_names (int); 164 static void ipsec_hist (const u_quad_t *, size_t, const struct val2str *, 165 const char *); 166 167 /* 168 * Dump IPSEC statistics structure. 169 */ 170 static void 171 ipsec_hist(const u_quad_t *hist, 172 size_t histmax, 173 const struct val2str *name, 174 const char *title) 175 { 176 int first; 177 size_t proto; 178 const struct val2str *p; 179 180 first = 1; 181 for (proto = 0; proto < histmax; proto++) { 182 if (hist[proto] <= 0) 183 continue; 184 if (first) { 185 printf("\t%s histogram:\n", title); 186 first = 0; 187 } 188 for (p = name; p && p->str; p++) { 189 if (p->val == (int)proto) 190 break; 191 } 192 if (p && p->str) { 193 printf("\t\t%s: " LLU "\n", p->str, (CAST)hist[proto]); 194 } else { 195 printf("\t\t#%ld: " LLU "\n", (long)proto, 196 (CAST)hist[proto]); 197 } 198 } 199 } 200 201 static void 202 print_ipsecstats(void) 203 { 204 #define p(f, m) if (ipsecstat.f || sflag <= 1) \ 205 printf(m, (CAST)ipsecstat.f, plural(ipsecstat.f)) 206 #define hist(f, n, t) \ 207 ipsec_hist((f), sizeof(f)/sizeof(f[0]), (n), (t)); 208 209 p(in_success, "\t" LLU " inbound packet%s processed successfully\n"); 210 p(in_polvio, "\t" LLU " inbound packet%s violated process security " 211 "policy\n"); 212 p(in_nosa, "\t" LLU " inbound packet%s with no SA available\n"); 213 p(in_inval, "\t" LLU " invalid inbound packet%s\n"); 214 p(in_nomem, "\t" LLU " inbound packet%s failed due to insufficient memory\n"); 215 p(in_badspi, "\t" LLU " inbound packet%s failed getting SPI\n"); 216 p(in_ahreplay, "\t" LLU " inbound packet%s failed on AH replay check\n"); 217 p(in_espreplay, "\t" LLU " inbound packet%s failed on ESP replay check\n"); 218 p(in_ahauthsucc, "\t" LLU " inbound packet%s considered authentic\n"); 219 p(in_ahauthfail, "\t" LLU " inbound packet%s failed on authentication\n"); 220 hist(ipsecstat.in_ahhist, ipsec_ahnames, "AH input"); 221 hist(ipsecstat.in_esphist, ipsec_espnames, "ESP input"); 222 hist(ipsecstat.in_comphist, ipsec_compnames, "IPComp input"); 223 224 p(out_success, "\t" LLU " outbound packet%s processed successfully\n"); 225 p(out_polvio, "\t" LLU " outbound packet%s violated process security " 226 "policy\n"); 227 p(out_nosa, "\t" LLU " outbound packet%s with no SA available\n"); 228 p(out_inval, "\t" LLU " invalid outbound packet%s\n"); 229 p(out_nomem, "\t" LLU " outbound packet%s failed due to insufficient memory\n"); 230 p(out_noroute, "\t" LLU " outbound packet%s with no route\n"); 231 hist(ipsecstat.out_ahhist, ipsec_ahnames, "AH output"); 232 hist(ipsecstat.out_esphist, ipsec_espnames, "ESP output"); 233 hist(ipsecstat.out_comphist, ipsec_compnames, "IPComp output"); 234 #undef p 235 #undef hist 236 } 237 238 void 239 ipsec_stats(u_long off __unused, char *name, int af __unused) 240 { 241 if (off == 0) 242 return; 243 printf ("%s:\n", name); 244 kread(off, (char *)&ipsecstat, sizeof (ipsecstat)); 245 246 print_ipsecstats(); 247 } 248 249 static const char * 250 pfkey_msgtype_names(int x) 251 { 252 const int max = 253 sizeof(pfkey_msgtypenames)/sizeof(pfkey_msgtypenames[0]); 254 static char buf[10]; 255 256 if (x < max && pfkey_msgtypenames[x]) 257 return pfkey_msgtypenames[x]; 258 snprintf(buf, sizeof(buf), "#%d", x); 259 return buf; 260 } 261 262 void 263 pfkey_stats(u_long off __unused, char *name, int af __unused) 264 { 265 struct pfkeystat pfkeystat; 266 unsigned first, type; 267 268 if (off == 0) 269 return; 270 printf ("%s:\n", name); 271 kread(off, (char *)&pfkeystat, sizeof(pfkeystat)); 272 273 #define p(f, m) if (pfkeystat.f || sflag <= 1) \ 274 printf(m, (CAST)pfkeystat.f, plural(pfkeystat.f)) 275 276 /* kernel -> userland */ 277 p(out_total, "\t" LLU " request%s sent to userland\n"); 278 p(out_bytes, "\t" LLU " byte%s sent to userland\n"); 279 for (first = 1, type = 0; 280 type < sizeof(pfkeystat.out_msgtype)/sizeof(pfkeystat.out_msgtype[0]); 281 type++) { 282 if (pfkeystat.out_msgtype[type] <= 0) 283 continue; 284 if (first) { 285 printf("\thistogram by message type:\n"); 286 first = 0; 287 } 288 printf("\t\t%s: " LLU "\n", pfkey_msgtype_names(type), 289 (CAST)pfkeystat.out_msgtype[type]); 290 } 291 p(out_invlen, "\t" LLU " message%s with invalid length field\n"); 292 p(out_invver, "\t" LLU " message%s with invalid version field\n"); 293 p(out_invmsgtype, "\t" LLU " message%s with invalid message type field\n"); 294 p(out_tooshort, "\t" LLU " message%s too short\n"); 295 p(out_nomem, "\t" LLU " message%s with memory allocation failure\n"); 296 p(out_dupext, "\t" LLU " message%s with duplicate extension\n"); 297 p(out_invexttype, "\t" LLU " message%s with invalid extension type\n"); 298 p(out_invsatype, "\t" LLU " message%s with invalid sa type\n"); 299 p(out_invaddr, "\t" LLU " message%s with invalid address extension\n"); 300 301 /* userland -> kernel */ 302 p(in_total, "\t" LLU " request%s sent from userland\n"); 303 p(in_bytes, "\t" LLU " byte%s sent from userland\n"); 304 for (first = 1, type = 0; 305 type < sizeof(pfkeystat.in_msgtype)/sizeof(pfkeystat.in_msgtype[0]); 306 type++) { 307 if (pfkeystat.in_msgtype[type] <= 0) 308 continue; 309 if (first) { 310 printf("\thistogram by message type:\n"); 311 first = 0; 312 } 313 printf("\t\t%s: " LLU "\n", pfkey_msgtype_names(type), 314 (CAST)pfkeystat.in_msgtype[type]); 315 } 316 p(in_msgtarget[KEY_SENDUP_ONE], 317 "\t" LLU " message%s toward single socket\n"); 318 p(in_msgtarget[KEY_SENDUP_ALL], 319 "\t" LLU " message%s toward all sockets\n"); 320 p(in_msgtarget[KEY_SENDUP_REGISTERED], 321 "\t" LLU " message%s toward registered sockets\n"); 322 p(in_nomem, "\t" LLU " message%s with memory allocation failure\n"); 323 #undef p 324 } 325 #endif /*IPSEC*/ 326