The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * 1. Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer in the |
| 12 | * documentation and/or other materials provided with the distribution. |
| 13 | * 3. Neither the name of the project nor the names of its contributors |
| 14 | * may be used to endorse or promote products derived from this software |
| 15 | * without specific prior written permission. |
| 16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND |
| 18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE |
| 21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 27 | * SUCH DAMAGE. |
| 28 | * |
| 29 | */ |
| 30 | |
| 31 | #ifndef lint |
| 32 | static const char rcsid[] _U_ = |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 33 | "@(#) $Header: /tcpdump/master/tcpdump/print-isakmp.c,v 1.61 2008-02-05 19:34:25 guy Exp $ (LBL)"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 34 | #endif |
| 35 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 36 | #define NETDISSECT_REWORKED |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 37 | #ifdef HAVE_CONFIG_H |
| 38 | #include "config.h" |
| 39 | #endif |
| 40 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 41 | /* The functions from print-esp.c used in this file are only defined when both |
| 42 | * OpenSSL and evp.h are detected. Employ the same preprocessor device here. |
| 43 | */ |
| 44 | #ifndef HAVE_OPENSSL_EVP_H |
| 45 | #undef HAVE_LIBCRYPTO |
| 46 | #endif |
| 47 | |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 48 | #include <tcpdump-stdinc.h> |
| 49 | |
| 50 | #include <string.h> |
| 51 | |
| 52 | #include <stdio.h> |
| 53 | |
| 54 | #include "isakmp.h" |
| 55 | #include "ipsec_doi.h" |
| 56 | #include "oakley.h" |
| 57 | #include "interface.h" |
| 58 | #include "addrtoname.h" |
| 59 | #include "extract.h" /* must come after interface.h */ |
| 60 | |
| 61 | #include "ip.h" |
| 62 | #ifdef INET6 |
| 63 | #include "ip6.h" |
| 64 | #endif |
| 65 | |
| 66 | #ifndef HAVE_SOCKADDR_STORAGE |
| 67 | #define sockaddr_storage sockaddr |
| 68 | #endif |
| 69 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 70 | #define DECLARE_PRINTER(func) static const u_char *ike##func##_print( \ |
| 71 | netdissect_options *ndo, u_char tpay, \ |
| 72 | const struct isakmp_gen *ext, \ |
| 73 | u_int item_len, \ |
| 74 | const u_char *end_pointer, \ |
| 75 | u_int32_t phase,\ |
| 76 | u_int32_t doi0, \ |
| 77 | u_int32_t proto0, int depth) |
| 78 | |
| 79 | DECLARE_PRINTER(v1_sa); |
| 80 | DECLARE_PRINTER(v1_p); |
| 81 | DECLARE_PRINTER(v1_t); |
| 82 | DECLARE_PRINTER(v1_ke); |
| 83 | DECLARE_PRINTER(v1_id); |
| 84 | DECLARE_PRINTER(v1_cert); |
| 85 | DECLARE_PRINTER(v1_cr); |
| 86 | DECLARE_PRINTER(v1_sig); |
| 87 | DECLARE_PRINTER(v1_hash); |
| 88 | DECLARE_PRINTER(v1_nonce); |
| 89 | DECLARE_PRINTER(v1_n); |
| 90 | DECLARE_PRINTER(v1_d); |
| 91 | DECLARE_PRINTER(v1_vid); |
| 92 | |
| 93 | DECLARE_PRINTER(v2_sa); |
| 94 | DECLARE_PRINTER(v2_ke); |
| 95 | DECLARE_PRINTER(v2_ID); |
| 96 | DECLARE_PRINTER(v2_cert); |
| 97 | DECLARE_PRINTER(v2_cr); |
| 98 | DECLARE_PRINTER(v2_auth); |
| 99 | DECLARE_PRINTER(v2_nonce); |
| 100 | DECLARE_PRINTER(v2_n); |
| 101 | DECLARE_PRINTER(v2_d); |
| 102 | DECLARE_PRINTER(v2_vid); |
| 103 | DECLARE_PRINTER(v2_TS); |
| 104 | DECLARE_PRINTER(v2_cp); |
| 105 | DECLARE_PRINTER(v2_eap); |
| 106 | |
| 107 | static const u_char *ikev2_e_print(netdissect_options *ndo, |
| 108 | struct isakmp *base, |
| 109 | u_char tpay, |
| 110 | const struct isakmp_gen *ext, |
| 111 | u_int item_len, |
| 112 | const u_char *end_pointer, |
| 113 | u_int32_t phase, |
| 114 | u_int32_t doi0, |
| 115 | u_int32_t proto0, int depth); |
| 116 | |
| 117 | |
| 118 | static const u_char *ike_sub0_print(netdissect_options *ndo,u_char, const struct isakmp_gen *, |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 119 | const u_char *, u_int32_t, u_int32_t, u_int32_t, int); |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 120 | static const u_char *ikev1_sub_print(netdissect_options *ndo,u_char, const struct isakmp_gen *, |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 121 | const u_char *, u_int32_t, u_int32_t, u_int32_t, int); |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 122 | |
| 123 | static const u_char *ikev2_sub_print(netdissect_options *ndo, |
| 124 | struct isakmp *base, |
| 125 | u_char np, const struct isakmp_gen *ext, |
| 126 | const u_char *ep, u_int32_t phase, |
| 127 | u_int32_t doi, u_int32_t proto, |
| 128 | int depth); |
| 129 | |
| 130 | |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 131 | static char *numstr(int); |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 132 | |
| 133 | static void |
| 134 | ikev1_print(netdissect_options *ndo, |
| 135 | const u_char *bp, u_int length, |
| 136 | const u_char *bp2, struct isakmp *base); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 137 | |
| 138 | #define MAXINITIATORS 20 |
| 139 | int ninitiator = 0; |
| 140 | struct { |
| 141 | cookie_t initiator; |
| 142 | struct sockaddr_storage iaddr; |
| 143 | struct sockaddr_storage raddr; |
| 144 | } cookiecache[MAXINITIATORS]; |
| 145 | |
| 146 | /* protocol id */ |
| 147 | static const char *protoidstr[] = { |
| 148 | NULL, "isakmp", "ipsec-ah", "ipsec-esp", "ipcomp", |
| 149 | }; |
| 150 | |
| 151 | /* isakmp->np */ |
| 152 | static const char *npstr[] = { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 153 | "none", "sa", "p", "t", "ke", "id", "cert", "cr", "hash", /* 0 - 8 */ |
| 154 | "sig", "nonce", "n", "d", "vid", /* 9 - 13 */ |
| 155 | "pay14", "pay15", "pay16", "pay17", "pay18", /* 14- 18 */ |
| 156 | "pay19", "pay20", "pay21", "pay22", "pay23", /* 19- 23 */ |
| 157 | "pay24", "pay25", "pay26", "pay27", "pay28", /* 24- 28 */ |
| 158 | "pay29", "pay30", "pay31", "pay32", /* 29- 32 */ |
| 159 | "v2sa", "v2ke", "v2IDi", "v2IDr", "v2cert",/* 33- 37 */ |
| 160 | "v2cr", "v2auth","v2nonce", "v2n", "v2d", /* 38- 42 */ |
| 161 | "v2vid", "v2TSi", "v2TSr", "v2e", "v2cp", /* 43- 47 */ |
| 162 | "v2eap", /* 48 */ |
| 163 | |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 164 | }; |
| 165 | |
| 166 | /* isakmp->np */ |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 167 | static const u_char *(*npfunc[])(netdissect_options *ndo, u_char tpay, |
| 168 | const struct isakmp_gen *ext, |
| 169 | u_int item_len, |
| 170 | const u_char *end_pointer, |
| 171 | u_int32_t phase, |
| 172 | u_int32_t doi0, |
| 173 | u_int32_t proto0, int depth) = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 174 | NULL, |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 175 | ikev1_sa_print, |
| 176 | ikev1_p_print, |
| 177 | ikev1_t_print, |
| 178 | ikev1_ke_print, |
| 179 | ikev1_id_print, |
| 180 | ikev1_cert_print, |
| 181 | ikev1_cr_print, |
| 182 | ikev1_hash_print, |
| 183 | ikev1_sig_print, |
| 184 | ikev1_nonce_print, |
| 185 | ikev1_n_print, |
| 186 | ikev1_d_print, |
| 187 | ikev1_vid_print, /* 13 */ |
| 188 | NULL, NULL, NULL, NULL, NULL, /* 14- 18 */ |
| 189 | NULL, NULL, NULL, NULL, NULL, /* 19- 23 */ |
| 190 | NULL, NULL, NULL, NULL, NULL, /* 24- 28 */ |
| 191 | NULL, NULL, NULL, NULL, /* 29- 32 */ |
| 192 | ikev2_sa_print, /* 33 */ |
| 193 | ikev2_ke_print, /* 34 */ |
| 194 | ikev2_ID_print, /* 35 */ |
| 195 | ikev2_ID_print, /* 36 */ |
| 196 | ikev2_cert_print, /* 37 */ |
| 197 | ikev2_cr_print, /* 38 */ |
| 198 | ikev2_auth_print, /* 39 */ |
| 199 | ikev2_nonce_print, /* 40 */ |
| 200 | ikev2_n_print, /* 41 */ |
| 201 | ikev2_d_print, /* 42 */ |
| 202 | ikev2_vid_print, /* 43 */ |
| 203 | ikev2_TS_print, /* 44 */ |
| 204 | ikev2_TS_print, /* 45 */ |
| 205 | NULL, /* ikev2_e_print,*/ /* 46 - special */ |
| 206 | ikev2_cp_print, /* 47 */ |
| 207 | ikev2_eap_print, /* 48 */ |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 208 | }; |
| 209 | |
| 210 | /* isakmp->etype */ |
| 211 | static const char *etypestr[] = { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 212 | /* IKEv1 exchange types */ |
| 213 | "none", "base", "ident", "auth", "agg", "inf", NULL, NULL, /* 0-7 */ |
| 214 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 8-15 */ |
| 215 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 16-23 */ |
| 216 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 24-31 */ |
| 217 | "oakley-quick", "oakley-newgroup", /* 32-33 */ |
| 218 | /* IKEv2 exchange types */ |
| 219 | "ikev2_init", "ikev2_auth", "child_sa", "inf2" /* 34-37 */ |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 220 | }; |
| 221 | |
| 222 | #define STR_OR_ID(x, tab) \ |
| 223 | (((x) < sizeof(tab)/sizeof(tab[0]) && tab[(x)]) ? tab[(x)] : numstr(x)) |
| 224 | #define PROTOIDSTR(x) STR_OR_ID(x, protoidstr) |
| 225 | #define NPSTR(x) STR_OR_ID(x, npstr) |
| 226 | #define ETYPESTR(x) STR_OR_ID(x, etypestr) |
| 227 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 228 | #define CHECKLEN(p, np) \ |
| 229 | if (ep < (u_char *)(p)) { \ |
| 230 | ND_PRINT((ndo," [|%s]", NPSTR(np))); \ |
| 231 | goto done; \ |
| 232 | } |
| 233 | |
| 234 | |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 235 | #define NPFUNC(x) \ |
| 236 | (((x) < sizeof(npfunc)/sizeof(npfunc[0]) && npfunc[(x)]) \ |
| 237 | ? npfunc[(x)] : NULL) |
| 238 | |
| 239 | static int |
| 240 | iszero(u_char *p, size_t l) |
| 241 | { |
| 242 | while (l--) { |
| 243 | if (*p++) |
| 244 | return 0; |
| 245 | } |
| 246 | return 1; |
| 247 | } |
| 248 | |
| 249 | /* find cookie from initiator cache */ |
| 250 | static int |
| 251 | cookie_find(cookie_t *in) |
| 252 | { |
| 253 | int i; |
| 254 | |
| 255 | for (i = 0; i < MAXINITIATORS; i++) { |
| 256 | if (memcmp(in, &cookiecache[i].initiator, sizeof(*in)) == 0) |
| 257 | return i; |
| 258 | } |
| 259 | |
| 260 | return -1; |
| 261 | } |
| 262 | |
| 263 | /* record initiator */ |
| 264 | static void |
| 265 | cookie_record(cookie_t *in, const u_char *bp2) |
| 266 | { |
| 267 | int i; |
| 268 | struct ip *ip; |
| 269 | struct sockaddr_in *sin; |
| 270 | #ifdef INET6 |
| 271 | struct ip6_hdr *ip6; |
| 272 | struct sockaddr_in6 *sin6; |
| 273 | #endif |
| 274 | |
| 275 | i = cookie_find(in); |
| 276 | if (0 <= i) { |
| 277 | ninitiator = (i + 1) % MAXINITIATORS; |
| 278 | return; |
| 279 | } |
| 280 | |
| 281 | ip = (struct ip *)bp2; |
| 282 | switch (IP_V(ip)) { |
| 283 | case 4: |
| 284 | memset(&cookiecache[ninitiator].iaddr, 0, |
| 285 | sizeof(cookiecache[ninitiator].iaddr)); |
| 286 | memset(&cookiecache[ninitiator].raddr, 0, |
| 287 | sizeof(cookiecache[ninitiator].raddr)); |
| 288 | |
| 289 | sin = (struct sockaddr_in *)&cookiecache[ninitiator].iaddr; |
| 290 | #ifdef HAVE_SOCKADDR_SA_LEN |
| 291 | sin->sin_len = sizeof(struct sockaddr_in); |
| 292 | #endif |
| 293 | sin->sin_family = AF_INET; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 294 | UNALIGNED_MEMCPY(&sin->sin_addr, &ip->ip_src, sizeof(ip->ip_src)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 295 | sin = (struct sockaddr_in *)&cookiecache[ninitiator].raddr; |
| 296 | #ifdef HAVE_SOCKADDR_SA_LEN |
| 297 | sin->sin_len = sizeof(struct sockaddr_in); |
| 298 | #endif |
| 299 | sin->sin_family = AF_INET; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 300 | UNALIGNED_MEMCPY(&sin->sin_addr, &ip->ip_dst, sizeof(ip->ip_dst)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 301 | break; |
| 302 | #ifdef INET6 |
| 303 | case 6: |
| 304 | memset(&cookiecache[ninitiator].iaddr, 0, |
| 305 | sizeof(cookiecache[ninitiator].iaddr)); |
| 306 | memset(&cookiecache[ninitiator].raddr, 0, |
| 307 | sizeof(cookiecache[ninitiator].raddr)); |
| 308 | |
| 309 | ip6 = (struct ip6_hdr *)bp2; |
| 310 | sin6 = (struct sockaddr_in6 *)&cookiecache[ninitiator].iaddr; |
| 311 | #ifdef HAVE_SOCKADDR_SA_LEN |
| 312 | sin6->sin6_len = sizeof(struct sockaddr_in6); |
| 313 | #endif |
| 314 | sin6->sin6_family = AF_INET6; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 315 | UNALIGNED_MEMCPY(&sin6->sin6_addr, &ip6->ip6_src, sizeof(ip6->ip6_src)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 316 | sin6 = (struct sockaddr_in6 *)&cookiecache[ninitiator].raddr; |
| 317 | #ifdef HAVE_SOCKADDR_SA_LEN |
| 318 | sin6->sin6_len = sizeof(struct sockaddr_in6); |
| 319 | #endif |
| 320 | sin6->sin6_family = AF_INET6; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 321 | UNALIGNED_MEMCPY(&sin6->sin6_addr, &ip6->ip6_dst, sizeof(ip6->ip6_dst)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 322 | break; |
| 323 | #endif |
| 324 | default: |
| 325 | return; |
| 326 | } |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 327 | UNALIGNED_MEMCPY(&cookiecache[ninitiator].initiator, in, sizeof(*in)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 328 | ninitiator = (ninitiator + 1) % MAXINITIATORS; |
| 329 | } |
| 330 | |
| 331 | #define cookie_isinitiator(x, y) cookie_sidecheck((x), (y), 1) |
| 332 | #define cookie_isresponder(x, y) cookie_sidecheck((x), (y), 0) |
| 333 | static int |
| 334 | cookie_sidecheck(int i, const u_char *bp2, int initiator) |
| 335 | { |
| 336 | struct sockaddr_storage ss; |
| 337 | struct sockaddr *sa; |
| 338 | struct ip *ip; |
| 339 | struct sockaddr_in *sin; |
| 340 | #ifdef INET6 |
| 341 | struct ip6_hdr *ip6; |
| 342 | struct sockaddr_in6 *sin6; |
| 343 | #endif |
| 344 | int salen; |
| 345 | |
| 346 | memset(&ss, 0, sizeof(ss)); |
| 347 | ip = (struct ip *)bp2; |
| 348 | switch (IP_V(ip)) { |
| 349 | case 4: |
| 350 | sin = (struct sockaddr_in *)&ss; |
| 351 | #ifdef HAVE_SOCKADDR_SA_LEN |
| 352 | sin->sin_len = sizeof(struct sockaddr_in); |
| 353 | #endif |
| 354 | sin->sin_family = AF_INET; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 355 | UNALIGNED_MEMCPY(&sin->sin_addr, &ip->ip_src, sizeof(ip->ip_src)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 356 | break; |
| 357 | #ifdef INET6 |
| 358 | case 6: |
| 359 | ip6 = (struct ip6_hdr *)bp2; |
| 360 | sin6 = (struct sockaddr_in6 *)&ss; |
| 361 | #ifdef HAVE_SOCKADDR_SA_LEN |
| 362 | sin6->sin6_len = sizeof(struct sockaddr_in6); |
| 363 | #endif |
| 364 | sin6->sin6_family = AF_INET6; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 365 | UNALIGNED_MEMCPY(&sin6->sin6_addr, &ip6->ip6_src, sizeof(ip6->ip6_src)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 366 | break; |
| 367 | #endif |
| 368 | default: |
| 369 | return 0; |
| 370 | } |
| 371 | |
| 372 | sa = (struct sockaddr *)&ss; |
| 373 | if (initiator) { |
| 374 | if (sa->sa_family != ((struct sockaddr *)&cookiecache[i].iaddr)->sa_family) |
| 375 | return 0; |
| 376 | #ifdef HAVE_SOCKADDR_SA_LEN |
| 377 | salen = sa->sa_len; |
| 378 | #else |
| 379 | #ifdef INET6 |
| 380 | if (sa->sa_family == AF_INET6) |
| 381 | salen = sizeof(struct sockaddr_in6); |
| 382 | else |
| 383 | salen = sizeof(struct sockaddr); |
| 384 | #else |
| 385 | salen = sizeof(struct sockaddr); |
| 386 | #endif |
| 387 | #endif |
| 388 | if (memcmp(&ss, &cookiecache[i].iaddr, salen) == 0) |
| 389 | return 1; |
| 390 | } else { |
| 391 | if (sa->sa_family != ((struct sockaddr *)&cookiecache[i].raddr)->sa_family) |
| 392 | return 0; |
| 393 | #ifdef HAVE_SOCKADDR_SA_LEN |
| 394 | salen = sa->sa_len; |
| 395 | #else |
| 396 | #ifdef INET6 |
| 397 | if (sa->sa_family == AF_INET6) |
| 398 | salen = sizeof(struct sockaddr_in6); |
| 399 | else |
| 400 | salen = sizeof(struct sockaddr); |
| 401 | #else |
| 402 | salen = sizeof(struct sockaddr); |
| 403 | #endif |
| 404 | #endif |
| 405 | if (memcmp(&ss, &cookiecache[i].raddr, salen) == 0) |
| 406 | return 1; |
| 407 | } |
| 408 | return 0; |
| 409 | } |
| 410 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 411 | static void |
| 412 | hexprint(netdissect_options *ndo, caddr_t loc, size_t len) |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 413 | { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 414 | u_char *p; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 415 | size_t i; |
| 416 | |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 417 | p = (u_char *)loc; |
| 418 | for (i = 0; i < len; i++) |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 419 | ND_PRINT((ndo,"%02x", p[i] & 0xff)); |
| 420 | } |
| 421 | |
| 422 | static int |
| 423 | rawprint(netdissect_options *ndo, caddr_t loc, size_t len) |
| 424 | { |
| 425 | ND_TCHECK2(*loc, len); |
| 426 | |
| 427 | hexprint(ndo, loc, len); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 428 | return 1; |
| 429 | trunc: |
| 430 | return 0; |
| 431 | } |
| 432 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 433 | |
| 434 | /* |
| 435 | * returns false if we run out of data buffer |
| 436 | */ |
| 437 | static int ike_show_somedata(struct netdissect_options *ndo, |
| 438 | const u_char *cp, const u_char *ep) |
| 439 | { |
| 440 | /* there is too much data, just show some of it */ |
| 441 | const u_char *end = ep - 20; |
| 442 | int elen = 20; |
| 443 | int len = ep - cp; |
| 444 | if(len > 10) { |
| 445 | len = 10; |
| 446 | } |
| 447 | |
| 448 | /* really shouldn't happen because of above */ |
| 449 | if(end < cp + len) { |
| 450 | end = cp+len; |
| 451 | elen = ep - end; |
| 452 | } |
| 453 | |
| 454 | ND_PRINT((ndo," data=(")); |
| 455 | if(!rawprint(ndo, (caddr_t)(cp), len)) goto trunc; |
| 456 | ND_PRINT((ndo, "...")); |
| 457 | if(elen) { |
| 458 | if(!rawprint(ndo, (caddr_t)(end), elen)) goto trunc; |
| 459 | } |
| 460 | ND_PRINT((ndo,")")); |
| 461 | return 1; |
| 462 | |
| 463 | trunc: |
| 464 | return 0; |
| 465 | } |
| 466 | |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 467 | struct attrmap { |
| 468 | const char *type; |
| 469 | u_int nvalue; |
| 470 | const char *value[30]; /*XXX*/ |
| 471 | }; |
| 472 | |
| 473 | static const u_char * |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 474 | ikev1_attrmap_print(netdissect_options *ndo, |
| 475 | const u_char *p, const u_char *ep, |
| 476 | const struct attrmap *map, size_t nmap) |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 477 | { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 478 | int totlen; |
| 479 | u_int32_t t, v; |
| 480 | |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 481 | if (p[0] & 0x80) |
| 482 | totlen = 4; |
| 483 | else |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 484 | totlen = 4 + EXTRACT_16BITS(&p[2]); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 485 | if (ep < p + totlen) { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 486 | ND_PRINT((ndo,"[|attr]")); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 487 | return ep + 1; |
| 488 | } |
| 489 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 490 | ND_PRINT((ndo,"(")); |
| 491 | t = EXTRACT_16BITS(&p[0]) & 0x7fff; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 492 | if (map && t < nmap && map[t].type) |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 493 | ND_PRINT((ndo,"type=%s ", map[t].type)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 494 | else |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 495 | ND_PRINT((ndo,"type=#%d ", t)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 496 | if (p[0] & 0x80) { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 497 | ND_PRINT((ndo,"value=")); |
| 498 | v = EXTRACT_16BITS(&p[2]); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 499 | if (map && t < nmap && v < map[t].nvalue && map[t].value[v]) |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 500 | ND_PRINT((ndo,"%s", map[t].value[v])); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 501 | else |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 502 | rawprint(ndo, (caddr_t)&p[2], 2); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 503 | } else { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 504 | ND_PRINT((ndo,"len=%d value=", EXTRACT_16BITS(&p[2]))); |
| 505 | rawprint(ndo, (caddr_t)&p[4], EXTRACT_16BITS(&p[2])); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 506 | } |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 507 | ND_PRINT((ndo,")")); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 508 | return p + totlen; |
| 509 | } |
| 510 | |
| 511 | static const u_char * |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 512 | ikev1_attr_print(netdissect_options *ndo, const u_char *p, const u_char *ep) |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 513 | { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 514 | int totlen; |
| 515 | u_int32_t t; |
| 516 | |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 517 | if (p[0] & 0x80) |
| 518 | totlen = 4; |
| 519 | else |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 520 | totlen = 4 + EXTRACT_16BITS(&p[2]); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 521 | if (ep < p + totlen) { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 522 | ND_PRINT((ndo,"[|attr]")); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 523 | return ep + 1; |
| 524 | } |
| 525 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 526 | ND_PRINT((ndo,"(")); |
| 527 | t = EXTRACT_16BITS(&p[0]) & 0x7fff; |
| 528 | ND_PRINT((ndo,"type=#%d ", t)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 529 | if (p[0] & 0x80) { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 530 | ND_PRINT((ndo,"value=")); |
| 531 | t = p[2]; |
| 532 | rawprint(ndo, (caddr_t)&p[2], 2); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 533 | } else { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 534 | ND_PRINT((ndo,"len=%d value=", EXTRACT_16BITS(&p[2]))); |
| 535 | rawprint(ndo, (caddr_t)&p[4], EXTRACT_16BITS(&p[2])); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 536 | } |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 537 | ND_PRINT((ndo,")")); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 538 | return p + totlen; |
| 539 | } |
| 540 | |
| 541 | static const u_char * |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 542 | ikev1_sa_print(netdissect_options *ndo, u_char tpay _U_, |
| 543 | const struct isakmp_gen *ext, |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 544 | u_int item_len _U_, |
| 545 | const u_char *ep, u_int32_t phase, u_int32_t doi0 _U_, |
| 546 | u_int32_t proto0, int depth) |
| 547 | { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 548 | const struct ikev1_pl_sa *p; |
| 549 | struct ikev1_pl_sa sa; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 550 | u_int32_t doi, sit, ident; |
| 551 | const u_char *cp, *np; |
| 552 | int t; |
| 553 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 554 | ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_SA))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 555 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 556 | p = (struct ikev1_pl_sa *)ext; |
| 557 | ND_TCHECK(*p); |
| 558 | UNALIGNED_MEMCPY(&sa, ext, sizeof(sa)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 559 | doi = ntohl(sa.doi); |
| 560 | sit = ntohl(sa.sit); |
| 561 | if (doi != 1) { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 562 | ND_PRINT((ndo," doi=%d", doi)); |
| 563 | ND_PRINT((ndo," situation=%u", (u_int32_t)ntohl(sa.sit))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 564 | return (u_char *)(p + 1); |
| 565 | } |
| 566 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 567 | ND_PRINT((ndo," doi=ipsec")); |
| 568 | ND_PRINT((ndo," situation=")); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 569 | t = 0; |
| 570 | if (sit & 0x01) { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 571 | ND_PRINT((ndo,"identity")); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 572 | t++; |
| 573 | } |
| 574 | if (sit & 0x02) { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 575 | ND_PRINT((ndo,"%ssecrecy", t ? "+" : "")); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 576 | t++; |
| 577 | } |
| 578 | if (sit & 0x04) |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 579 | ND_PRINT((ndo,"%sintegrity", t ? "+" : "")); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 580 | |
| 581 | np = (u_char *)ext + sizeof(sa); |
| 582 | if (sit != 0x01) { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 583 | ND_TCHECK2(*(ext + 1), sizeof(ident)); |
| 584 | UNALIGNED_MEMCPY(&ident, ext + 1, sizeof(ident)); |
| 585 | ND_PRINT((ndo," ident=%u", (u_int32_t)ntohl(ident))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 586 | np += sizeof(ident); |
| 587 | } |
| 588 | |
| 589 | ext = (struct isakmp_gen *)np; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 590 | ND_TCHECK(*ext); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 591 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 592 | cp = ikev1_sub_print(ndo, ISAKMP_NPTYPE_P, ext, ep, phase, doi, proto0, |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 593 | depth); |
| 594 | |
| 595 | return cp; |
| 596 | trunc: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 597 | ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_SA))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 598 | return NULL; |
| 599 | } |
| 600 | |
| 601 | static const u_char * |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 602 | ikev1_p_print(netdissect_options *ndo, u_char tpay _U_, |
| 603 | const struct isakmp_gen *ext, u_int item_len _U_, |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 604 | const u_char *ep, u_int32_t phase, u_int32_t doi0, |
| 605 | u_int32_t proto0 _U_, int depth) |
| 606 | { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 607 | const struct ikev1_pl_p *p; |
| 608 | struct ikev1_pl_p prop; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 609 | const u_char *cp; |
| 610 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 611 | ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_P))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 612 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 613 | p = (struct ikev1_pl_p *)ext; |
| 614 | ND_TCHECK(*p); |
| 615 | UNALIGNED_MEMCPY(&prop, ext, sizeof(prop)); |
| 616 | ND_PRINT((ndo," #%d protoid=%s transform=%d", |
| 617 | prop.p_no, PROTOIDSTR(prop.prot_id), prop.num_t)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 618 | if (prop.spi_size) { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 619 | ND_PRINT((ndo," spi=")); |
| 620 | if (!rawprint(ndo, (caddr_t)(p + 1), prop.spi_size)) |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 621 | goto trunc; |
| 622 | } |
| 623 | |
| 624 | ext = (struct isakmp_gen *)((u_char *)(p + 1) + prop.spi_size); |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 625 | ND_TCHECK(*ext); |
| 626 | |
| 627 | cp = ikev1_sub_print(ndo, ISAKMP_NPTYPE_T, ext, ep, phase, doi0, |
| 628 | prop.prot_id, depth); |
| 629 | |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 630 | return cp; |
| 631 | trunc: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 632 | ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_P))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 633 | return NULL; |
| 634 | } |
| 635 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 636 | static const char *ikev1_p_map[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 637 | NULL, "ike", |
| 638 | }; |
| 639 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 640 | static const char *ikev2_t_type_map[]={ |
| 641 | NULL, "encr", "prf", "integ", "dh", "esn" |
| 642 | }; |
| 643 | |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 644 | static const char *ah_p_map[] = { |
| 645 | NULL, "(reserved)", "md5", "sha", "1des", |
| 646 | "sha2-256", "sha2-384", "sha2-512", |
| 647 | }; |
| 648 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 649 | static const char *prf_p_map[] = { |
| 650 | NULL, "hmac-md5", "hmac-sha", "hmac-tiger", |
| 651 | "aes128_xcbc" |
| 652 | }; |
| 653 | |
| 654 | static const char *integ_p_map[] = { |
| 655 | NULL, "hmac-md5", "hmac-sha", "dec-mac", |
| 656 | "kpdk-md5", "aes-xcbc" |
| 657 | }; |
| 658 | |
| 659 | static const char *esn_p_map[] = { |
| 660 | "no-esn", "esn" |
| 661 | }; |
| 662 | |
| 663 | static const char *dh_p_map[] = { |
| 664 | NULL, "modp768", |
| 665 | "modp1024", /* group 2 */ |
| 666 | "EC2N 2^155", /* group 3 */ |
| 667 | "EC2N 2^185", /* group 4 */ |
| 668 | "modp1536", /* group 5 */ |
| 669 | "iana-grp06", "iana-grp07", /* reserved */ |
| 670 | "iana-grp08", "iana-grp09", |
| 671 | "iana-grp10", "iana-grp11", |
| 672 | "iana-grp12", "iana-grp13", |
| 673 | "modp2048", /* group 14 */ |
| 674 | "modp3072", /* group 15 */ |
| 675 | "modp4096", /* group 16 */ |
| 676 | "modp6144", /* group 17 */ |
| 677 | "modp8192", /* group 18 */ |
| 678 | }; |
| 679 | |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 680 | static const char *esp_p_map[] = { |
| 681 | NULL, "1des-iv64", "1des", "3des", "rc5", "idea", "cast", |
| 682 | "blowfish", "3idea", "1des-iv32", "rc4", "null", "aes" |
| 683 | }; |
| 684 | |
| 685 | static const char *ipcomp_p_map[] = { |
| 686 | NULL, "oui", "deflate", "lzs", |
| 687 | }; |
| 688 | |
| 689 | const struct attrmap ipsec_t_map[] = { |
| 690 | { NULL, 0, { NULL } }, |
| 691 | { "lifetype", 3, { NULL, "sec", "kb", }, }, |
| 692 | { "life", 0, { NULL } }, |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 693 | { "group desc", 18, { NULL, "modp768", |
| 694 | "modp1024", /* group 2 */ |
| 695 | "EC2N 2^155", /* group 3 */ |
| 696 | "EC2N 2^185", /* group 4 */ |
| 697 | "modp1536", /* group 5 */ |
| 698 | "iana-grp06", "iana-grp07", /* reserved */ |
| 699 | "iana-grp08", "iana-grp09", |
| 700 | "iana-grp10", "iana-grp11", |
| 701 | "iana-grp12", "iana-grp13", |
| 702 | "modp2048", /* group 14 */ |
| 703 | "modp3072", /* group 15 */ |
| 704 | "modp4096", /* group 16 */ |
| 705 | "modp6144", /* group 17 */ |
| 706 | "modp8192", /* group 18 */ |
| 707 | }, }, |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 708 | { "enc mode", 3, { NULL, "tunnel", "transport", }, }, |
| 709 | { "auth", 5, { NULL, "hmac-md5", "hmac-sha1", "1des-mac", "keyed", }, }, |
| 710 | { "keylen", 0, { NULL } }, |
| 711 | { "rounds", 0, { NULL } }, |
| 712 | { "dictsize", 0, { NULL } }, |
| 713 | { "privalg", 0, { NULL } }, |
| 714 | }; |
| 715 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 716 | const struct attrmap encr_t_map[] = { |
| 717 | { NULL, 0, { NULL } }, { NULL, 0, { NULL } }, /* 0, 1 */ |
| 718 | { NULL, 0, { NULL } }, { NULL, 0, { NULL } }, /* 2, 3 */ |
| 719 | { NULL, 0, { NULL } }, { NULL, 0, { NULL } }, /* 4, 5 */ |
| 720 | { NULL, 0, { NULL } }, { NULL, 0, { NULL } }, /* 6, 7 */ |
| 721 | { NULL, 0, { NULL } }, { NULL, 0, { NULL } }, /* 8, 9 */ |
| 722 | { NULL, 0, { NULL } }, { NULL, 0, { NULL } }, /* 10,11*/ |
| 723 | { NULL, 0, { NULL } }, { NULL, 0, { NULL } }, /* 12,13*/ |
| 724 | { "keylen", 14, { NULL }}, |
| 725 | }; |
| 726 | |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 727 | const struct attrmap oakley_t_map[] = { |
| 728 | { NULL, 0, { NULL } }, |
| 729 | { "enc", 8, { NULL, "1des", "idea", "blowfish", "rc5", |
| 730 | "3des", "cast", "aes", }, }, |
| 731 | { "hash", 7, { NULL, "md5", "sha1", "tiger", |
| 732 | "sha2-256", "sha2-384", "sha2-512", }, }, |
| 733 | { "auth", 6, { NULL, "preshared", "dss", "rsa sig", "rsa enc", |
| 734 | "rsa enc revised", }, }, |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 735 | { "group desc", 18, { NULL, "modp768", |
| 736 | "modp1024", /* group 2 */ |
| 737 | "EC2N 2^155", /* group 3 */ |
| 738 | "EC2N 2^185", /* group 4 */ |
| 739 | "modp1536", /* group 5 */ |
| 740 | "iana-grp06", "iana-grp07", /* reserved */ |
| 741 | "iana-grp08", "iana-grp09", |
| 742 | "iana-grp10", "iana-grp11", |
| 743 | "iana-grp12", "iana-grp13", |
| 744 | "modp2048", /* group 14 */ |
| 745 | "modp3072", /* group 15 */ |
| 746 | "modp4096", /* group 16 */ |
| 747 | "modp6144", /* group 17 */ |
| 748 | "modp8192", /* group 18 */ |
| 749 | }, }, |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 750 | { "group type", 4, { NULL, "MODP", "ECP", "EC2N", }, }, |
| 751 | { "group prime", 0, { NULL } }, |
| 752 | { "group gen1", 0, { NULL } }, |
| 753 | { "group gen2", 0, { NULL } }, |
| 754 | { "group curve A", 0, { NULL } }, |
| 755 | { "group curve B", 0, { NULL } }, |
| 756 | { "lifetype", 3, { NULL, "sec", "kb", }, }, |
| 757 | { "lifeduration", 0, { NULL } }, |
| 758 | { "prf", 0, { NULL } }, |
| 759 | { "keylen", 0, { NULL } }, |
| 760 | { "field", 0, { NULL } }, |
| 761 | { "order", 0, { NULL } }, |
| 762 | }; |
| 763 | |
| 764 | static const u_char * |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 765 | ikev1_t_print(netdissect_options *ndo, u_char tpay _U_, |
| 766 | const struct isakmp_gen *ext, u_int item_len, |
| 767 | const u_char *ep, u_int32_t phase _U_, u_int32_t doi _U_, |
| 768 | u_int32_t proto, int depth _U_) |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 769 | { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 770 | const struct ikev1_pl_t *p; |
| 771 | struct ikev1_pl_t t; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 772 | const u_char *cp; |
| 773 | const char *idstr; |
| 774 | const struct attrmap *map; |
| 775 | size_t nmap; |
| 776 | const u_char *ep2; |
| 777 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 778 | ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_T))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 779 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 780 | p = (struct ikev1_pl_t *)ext; |
| 781 | ND_TCHECK(*p); |
| 782 | UNALIGNED_MEMCPY(&t, ext, sizeof(t)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 783 | |
| 784 | switch (proto) { |
| 785 | case 1: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 786 | idstr = STR_OR_ID(t.t_id, ikev1_p_map); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 787 | map = oakley_t_map; |
| 788 | nmap = sizeof(oakley_t_map)/sizeof(oakley_t_map[0]); |
| 789 | break; |
| 790 | case 2: |
| 791 | idstr = STR_OR_ID(t.t_id, ah_p_map); |
| 792 | map = ipsec_t_map; |
| 793 | nmap = sizeof(ipsec_t_map)/sizeof(ipsec_t_map[0]); |
| 794 | break; |
| 795 | case 3: |
| 796 | idstr = STR_OR_ID(t.t_id, esp_p_map); |
| 797 | map = ipsec_t_map; |
| 798 | nmap = sizeof(ipsec_t_map)/sizeof(ipsec_t_map[0]); |
| 799 | break; |
| 800 | case 4: |
| 801 | idstr = STR_OR_ID(t.t_id, ipcomp_p_map); |
| 802 | map = ipsec_t_map; |
| 803 | nmap = sizeof(ipsec_t_map)/sizeof(ipsec_t_map[0]); |
| 804 | break; |
| 805 | default: |
| 806 | idstr = NULL; |
| 807 | map = NULL; |
| 808 | nmap = 0; |
| 809 | break; |
| 810 | } |
| 811 | |
| 812 | if (idstr) |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 813 | ND_PRINT((ndo," #%d id=%s ", t.t_no, idstr)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 814 | else |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 815 | ND_PRINT((ndo," #%d id=%d ", t.t_no, t.t_id)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 816 | cp = (u_char *)(p + 1); |
| 817 | ep2 = (u_char *)p + item_len; |
| 818 | while (cp < ep && cp < ep2) { |
| 819 | if (map && nmap) { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 820 | cp = ikev1_attrmap_print(ndo, cp, (ep < ep2) ? ep : ep2, |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 821 | map, nmap); |
| 822 | } else |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 823 | cp = ikev1_attr_print(ndo, cp, (ep < ep2) ? ep : ep2); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 824 | } |
| 825 | if (ep < ep2) |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 826 | ND_PRINT((ndo,"...")); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 827 | return cp; |
| 828 | trunc: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 829 | ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_T))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 830 | return NULL; |
| 831 | } |
| 832 | |
| 833 | static const u_char * |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 834 | ikev1_ke_print(netdissect_options *ndo, u_char tpay _U_, |
| 835 | const struct isakmp_gen *ext, u_int item_len _U_, |
| 836 | const u_char *ep _U_, u_int32_t phase _U_, u_int32_t doi _U_, |
| 837 | u_int32_t proto _U_, int depth _U_) |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 838 | { |
| 839 | struct isakmp_gen e; |
| 840 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 841 | ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_KE))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 842 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 843 | ND_TCHECK(*ext); |
| 844 | UNALIGNED_MEMCPY(&e, ext, sizeof(e)); |
| 845 | ND_PRINT((ndo," key len=%d", ntohs(e.len) - 4)); |
| 846 | if (2 < ndo->ndo_vflag && 4 < ntohs(e.len)) { |
| 847 | ND_PRINT((ndo," ")); |
| 848 | if (!rawprint(ndo, (caddr_t)(ext + 1), ntohs(e.len) - 4)) |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 849 | goto trunc; |
| 850 | } |
| 851 | return (u_char *)ext + ntohs(e.len); |
| 852 | trunc: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 853 | ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_KE))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 854 | return NULL; |
| 855 | } |
| 856 | |
| 857 | static const u_char * |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 858 | ikev1_id_print(netdissect_options *ndo, u_char tpay _U_, |
| 859 | const struct isakmp_gen *ext, u_int item_len _U_, |
| 860 | const u_char *ep _U_, u_int32_t phase, u_int32_t doi _U_, |
| 861 | u_int32_t proto _U_, int depth _U_) |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 862 | { |
| 863 | #define USE_IPSECDOI_IN_PHASE1 1 |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 864 | const struct ikev1_pl_id *p; |
| 865 | struct ikev1_pl_id id; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 866 | static const char *idtypestr[] = { |
| 867 | "IPv4", "IPv4net", "IPv6", "IPv6net", |
| 868 | }; |
| 869 | static const char *ipsecidtypestr[] = { |
| 870 | NULL, "IPv4", "FQDN", "user FQDN", "IPv4net", "IPv6", |
| 871 | "IPv6net", "IPv4range", "IPv6range", "ASN1 DN", "ASN1 GN", |
| 872 | "keyid", |
| 873 | }; |
| 874 | int len; |
| 875 | const u_char *data; |
| 876 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 877 | ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_ID))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 878 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 879 | p = (struct ikev1_pl_id *)ext; |
| 880 | ND_TCHECK(*p); |
| 881 | UNALIGNED_MEMCPY(&id, ext, sizeof(id)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 882 | if (sizeof(*p) < item_len) { |
| 883 | data = (u_char *)(p + 1); |
| 884 | len = item_len - sizeof(*p); |
| 885 | } else { |
| 886 | data = NULL; |
| 887 | len = 0; |
| 888 | } |
| 889 | |
| 890 | #if 0 /*debug*/ |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 891 | ND_PRINT((ndo," [phase=%d doi=%d proto=%d]", phase, doi, proto)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 892 | #endif |
| 893 | switch (phase) { |
| 894 | #ifndef USE_IPSECDOI_IN_PHASE1 |
| 895 | case 1: |
| 896 | #endif |
| 897 | default: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 898 | ND_PRINT((ndo," idtype=%s", STR_OR_ID(id.d.id_type, idtypestr))); |
| 899 | ND_PRINT((ndo," doi_data=%u", |
| 900 | (u_int32_t)(ntohl(id.d.doi_data) & 0xffffff))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 901 | break; |
| 902 | |
| 903 | #ifdef USE_IPSECDOI_IN_PHASE1 |
| 904 | case 1: |
| 905 | #endif |
| 906 | case 2: |
| 907 | { |
| 908 | const struct ipsecdoi_id *p; |
| 909 | struct ipsecdoi_id id; |
| 910 | struct protoent *pe; |
| 911 | |
| 912 | p = (struct ipsecdoi_id *)ext; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 913 | ND_TCHECK(*p); |
| 914 | UNALIGNED_MEMCPY(&id, ext, sizeof(id)); |
| 915 | ND_PRINT((ndo," idtype=%s", STR_OR_ID(id.type, ipsecidtypestr))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 916 | if (id.proto_id) { |
| 917 | #ifndef WIN32 |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 918 | setprotoent(1); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 919 | #endif /* WIN32 */ |
| 920 | pe = getprotobynumber(id.proto_id); |
| 921 | if (pe) |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 922 | ND_PRINT((ndo," protoid=%s", pe->p_name)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 923 | #ifndef WIN32 |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 924 | endprotoent(); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 925 | #endif /* WIN32 */ |
| 926 | } else { |
| 927 | /* it DOES NOT mean IPPROTO_IP! */ |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 928 | ND_PRINT((ndo," protoid=%s", "0")); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 929 | } |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 930 | ND_PRINT((ndo," port=%d", ntohs(id.port))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 931 | if (!len) |
| 932 | break; |
| 933 | if (data == NULL) |
| 934 | goto trunc; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 935 | ND_TCHECK2(*data, len); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 936 | switch (id.type) { |
| 937 | case IPSECDOI_ID_IPV4_ADDR: |
| 938 | if (len < 4) |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 939 | ND_PRINT((ndo," len=%d [bad: < 4]", len)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 940 | else |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 941 | ND_PRINT((ndo," len=%d %s", len, ipaddr_string(data))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 942 | len = 0; |
| 943 | break; |
| 944 | case IPSECDOI_ID_FQDN: |
| 945 | case IPSECDOI_ID_USER_FQDN: |
| 946 | { |
| 947 | int i; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 948 | ND_PRINT((ndo," len=%d ", len)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 949 | for (i = 0; i < len; i++) |
| 950 | safeputchar(data[i]); |
| 951 | len = 0; |
| 952 | break; |
| 953 | } |
| 954 | case IPSECDOI_ID_IPV4_ADDR_SUBNET: |
| 955 | { |
| 956 | const u_char *mask; |
| 957 | if (len < 8) |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 958 | ND_PRINT((ndo," len=%d [bad: < 8]", len)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 959 | else { |
| 960 | mask = data + sizeof(struct in_addr); |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 961 | ND_PRINT((ndo," len=%d %s/%u.%u.%u.%u", len, |
| 962 | ipaddr_string(data), |
| 963 | mask[0], mask[1], mask[2], mask[3])); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 964 | } |
| 965 | len = 0; |
| 966 | break; |
| 967 | } |
| 968 | #ifdef INET6 |
| 969 | case IPSECDOI_ID_IPV6_ADDR: |
| 970 | if (len < 16) |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 971 | ND_PRINT((ndo," len=%d [bad: < 16]", len)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 972 | else |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 973 | ND_PRINT((ndo," len=%d %s", len, ip6addr_string(data))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 974 | len = 0; |
| 975 | break; |
| 976 | case IPSECDOI_ID_IPV6_ADDR_SUBNET: |
| 977 | { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 978 | const u_char *mask; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 979 | if (len < 20) |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 980 | ND_PRINT((ndo," len=%d [bad: < 20]", len)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 981 | else { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 982 | mask = (u_char *)(data + sizeof(struct in6_addr)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 983 | /*XXX*/ |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 984 | ND_PRINT((ndo," len=%d %s/0x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x", len, |
| 985 | ip6addr_string(data), |
| 986 | mask[0], mask[1], mask[2], mask[3], |
| 987 | mask[4], mask[5], mask[6], mask[7], |
| 988 | mask[8], mask[9], mask[10], mask[11], |
| 989 | mask[12], mask[13], mask[14], mask[15])); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 990 | } |
| 991 | len = 0; |
| 992 | break; |
| 993 | } |
| 994 | #endif /*INET6*/ |
| 995 | case IPSECDOI_ID_IPV4_ADDR_RANGE: |
| 996 | if (len < 8) |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 997 | ND_PRINT((ndo," len=%d [bad: < 8]", len)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 998 | else { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 999 | ND_PRINT((ndo," len=%d %s-%s", len, |
| 1000 | ipaddr_string(data), |
| 1001 | ipaddr_string(data + sizeof(struct in_addr)))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1002 | } |
| 1003 | len = 0; |
| 1004 | break; |
| 1005 | #ifdef INET6 |
| 1006 | case IPSECDOI_ID_IPV6_ADDR_RANGE: |
| 1007 | if (len < 32) |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1008 | ND_PRINT((ndo," len=%d [bad: < 32]", len)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1009 | else { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1010 | ND_PRINT((ndo," len=%d %s-%s", len, |
| 1011 | ip6addr_string(data), |
| 1012 | ip6addr_string(data + sizeof(struct in6_addr)))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1013 | } |
| 1014 | len = 0; |
| 1015 | break; |
| 1016 | #endif /*INET6*/ |
| 1017 | case IPSECDOI_ID_DER_ASN1_DN: |
| 1018 | case IPSECDOI_ID_DER_ASN1_GN: |
| 1019 | case IPSECDOI_ID_KEY_ID: |
| 1020 | break; |
| 1021 | } |
| 1022 | break; |
| 1023 | } |
| 1024 | } |
| 1025 | if (data && len) { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1026 | ND_PRINT((ndo," len=%d", len)); |
| 1027 | if (2 < ndo->ndo_vflag) { |
| 1028 | ND_PRINT((ndo," ")); |
| 1029 | if (!rawprint(ndo, (caddr_t)data, len)) |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1030 | goto trunc; |
| 1031 | } |
| 1032 | } |
| 1033 | return (u_char *)ext + item_len; |
| 1034 | trunc: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1035 | ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_ID))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1036 | return NULL; |
| 1037 | } |
| 1038 | |
| 1039 | static const u_char * |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1040 | ikev1_cert_print(netdissect_options *ndo, u_char tpay _U_, |
| 1041 | const struct isakmp_gen *ext, u_int item_len _U_, |
| 1042 | const u_char *ep _U_, u_int32_t phase _U_, |
| 1043 | u_int32_t doi0 _U_, |
| 1044 | u_int32_t proto0 _U_, int depth _U_) |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1045 | { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1046 | const struct ikev1_pl_cert *p; |
| 1047 | struct ikev1_pl_cert cert; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1048 | static const char *certstr[] = { |
| 1049 | "none", "pkcs7", "pgp", "dns", |
| 1050 | "x509sign", "x509ke", "kerberos", "crl", |
| 1051 | "arl", "spki", "x509attr", |
| 1052 | }; |
| 1053 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1054 | ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_CERT))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1055 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1056 | p = (struct ikev1_pl_cert *)ext; |
| 1057 | ND_TCHECK(*p); |
| 1058 | UNALIGNED_MEMCPY(&cert, ext, sizeof(cert)); |
| 1059 | ND_PRINT((ndo," len=%d", item_len - 4)); |
| 1060 | ND_PRINT((ndo," type=%s", STR_OR_ID((cert.encode), certstr))); |
| 1061 | if (2 < ndo->ndo_vflag && 4 < item_len) { |
| 1062 | ND_PRINT((ndo," ")); |
| 1063 | if (!rawprint(ndo, (caddr_t)(ext + 1), item_len - 4)) |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1064 | goto trunc; |
| 1065 | } |
| 1066 | return (u_char *)ext + item_len; |
| 1067 | trunc: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1068 | ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_CERT))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1069 | return NULL; |
| 1070 | } |
| 1071 | |
| 1072 | static const u_char * |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1073 | ikev1_cr_print(netdissect_options *ndo, u_char tpay _U_, |
| 1074 | const struct isakmp_gen *ext, u_int item_len _U_, |
| 1075 | const u_char *ep _U_, u_int32_t phase _U_, u_int32_t doi0 _U_, |
| 1076 | u_int32_t proto0 _U_, int depth _U_) |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1077 | { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1078 | const struct ikev1_pl_cert *p; |
| 1079 | struct ikev1_pl_cert cert; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1080 | static const char *certstr[] = { |
| 1081 | "none", "pkcs7", "pgp", "dns", |
| 1082 | "x509sign", "x509ke", "kerberos", "crl", |
| 1083 | "arl", "spki", "x509attr", |
| 1084 | }; |
| 1085 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1086 | ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_CR))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1087 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1088 | p = (struct ikev1_pl_cert *)ext; |
| 1089 | ND_TCHECK(*p); |
| 1090 | UNALIGNED_MEMCPY(&cert, ext, sizeof(cert)); |
| 1091 | ND_PRINT((ndo," len=%d", item_len - 4)); |
| 1092 | ND_PRINT((ndo," type=%s", STR_OR_ID((cert.encode), certstr))); |
| 1093 | if (2 < ndo->ndo_vflag && 4 < item_len) { |
| 1094 | ND_PRINT((ndo," ")); |
| 1095 | if (!rawprint(ndo, (caddr_t)(ext + 1), item_len - 4)) |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1096 | goto trunc; |
| 1097 | } |
| 1098 | return (u_char *)ext + item_len; |
| 1099 | trunc: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1100 | ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_CR))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1101 | return NULL; |
| 1102 | } |
| 1103 | |
| 1104 | static const u_char * |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1105 | ikev1_hash_print(netdissect_options *ndo, u_char tpay _U_, |
| 1106 | const struct isakmp_gen *ext, u_int item_len _U_, |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1107 | const u_char *ep _U_, u_int32_t phase _U_, u_int32_t doi _U_, |
| 1108 | u_int32_t proto _U_, int depth _U_) |
| 1109 | { |
| 1110 | struct isakmp_gen e; |
| 1111 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1112 | ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_HASH))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1113 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1114 | ND_TCHECK(*ext); |
| 1115 | UNALIGNED_MEMCPY(&e, ext, sizeof(e)); |
| 1116 | ND_PRINT((ndo," len=%d", ntohs(e.len) - 4)); |
| 1117 | if (2 < ndo->ndo_vflag && 4 < ntohs(e.len)) { |
| 1118 | ND_PRINT((ndo," ")); |
| 1119 | if (!rawprint(ndo, (caddr_t)(ext + 1), ntohs(e.len) - 4)) |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1120 | goto trunc; |
| 1121 | } |
| 1122 | return (u_char *)ext + ntohs(e.len); |
| 1123 | trunc: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1124 | ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_HASH))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1125 | return NULL; |
| 1126 | } |
| 1127 | |
| 1128 | static const u_char * |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1129 | ikev1_sig_print(netdissect_options *ndo, u_char tpay _U_, |
| 1130 | const struct isakmp_gen *ext, u_int item_len _U_, |
| 1131 | const u_char *ep _U_, u_int32_t phase _U_, u_int32_t doi _U_, |
| 1132 | u_int32_t proto _U_, int depth _U_) |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1133 | { |
| 1134 | struct isakmp_gen e; |
| 1135 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1136 | ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_SIG))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1137 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1138 | ND_TCHECK(*ext); |
| 1139 | UNALIGNED_MEMCPY(&e, ext, sizeof(e)); |
| 1140 | ND_PRINT((ndo," len=%d", ntohs(e.len) - 4)); |
| 1141 | if (2 < ndo->ndo_vflag && 4 < ntohs(e.len)) { |
| 1142 | ND_PRINT((ndo," ")); |
| 1143 | if (!rawprint(ndo, (caddr_t)(ext + 1), ntohs(e.len) - 4)) |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1144 | goto trunc; |
| 1145 | } |
| 1146 | return (u_char *)ext + ntohs(e.len); |
| 1147 | trunc: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1148 | ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_SIG))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1149 | return NULL; |
| 1150 | } |
| 1151 | |
| 1152 | static const u_char * |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1153 | ikev1_nonce_print(netdissect_options *ndo, u_char tpay _U_, |
| 1154 | const struct isakmp_gen *ext, |
| 1155 | u_int item_len _U_, |
| 1156 | const u_char *ep _U_, |
| 1157 | u_int32_t phase _U_, u_int32_t doi _U_, |
| 1158 | u_int32_t proto _U_, int depth _U_) |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1159 | { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1160 | struct isakmp_gen e; |
| 1161 | |
| 1162 | ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_NONCE))); |
| 1163 | |
| 1164 | ND_TCHECK(*ext); |
| 1165 | UNALIGNED_MEMCPY(&e, ext, sizeof(e)); |
| 1166 | ND_PRINT((ndo," n len=%d", ntohs(e.len) - 4)); |
| 1167 | if (2 < ndo->ndo_vflag && 4 < ntohs(e.len)) { |
| 1168 | ND_PRINT((ndo," ")); |
| 1169 | if (!rawprint(ndo, (caddr_t)(ext + 1), ntohs(e.len) - 4)) |
| 1170 | goto trunc; |
| 1171 | } else if (1 < ndo->ndo_vflag && 4 < ntohs(e.len)) { |
| 1172 | ND_PRINT((ndo," ")); |
| 1173 | if (!ike_show_somedata(ndo, (u_char *)(caddr_t)(ext + 1), ep)) |
| 1174 | goto trunc; |
| 1175 | } |
| 1176 | return (u_char *)ext + ntohs(e.len); |
| 1177 | trunc: |
| 1178 | ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_NONCE))); |
| 1179 | return NULL; |
| 1180 | } |
| 1181 | |
| 1182 | static const u_char * |
| 1183 | ikev1_n_print(netdissect_options *ndo, u_char tpay _U_, |
| 1184 | const struct isakmp_gen *ext, u_int item_len, |
| 1185 | const u_char *ep, u_int32_t phase, u_int32_t doi0 _U_, |
| 1186 | u_int32_t proto0 _U_, int depth) |
| 1187 | { |
| 1188 | struct ikev1_pl_n *p, n; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1189 | const u_char *cp; |
| 1190 | u_char *ep2; |
| 1191 | u_int32_t doi; |
| 1192 | u_int32_t proto; |
| 1193 | static const char *notify_error_str[] = { |
| 1194 | NULL, "INVALID-PAYLOAD-TYPE", |
| 1195 | "DOI-NOT-SUPPORTED", "SITUATION-NOT-SUPPORTED", |
| 1196 | "INVALID-COOKIE", "INVALID-MAJOR-VERSION", |
| 1197 | "INVALID-MINOR-VERSION", "INVALID-EXCHANGE-TYPE", |
| 1198 | "INVALID-FLAGS", "INVALID-MESSAGE-ID", |
| 1199 | "INVALID-PROTOCOL-ID", "INVALID-SPI", |
| 1200 | "INVALID-TRANSFORM-ID", "ATTRIBUTES-NOT-SUPPORTED", |
| 1201 | "NO-PROPOSAL-CHOSEN", "BAD-PROPOSAL-SYNTAX", |
| 1202 | "PAYLOAD-MALFORMED", "INVALID-KEY-INFORMATION", |
| 1203 | "INVALID-ID-INFORMATION", "INVALID-CERT-ENCODING", |
| 1204 | "INVALID-CERTIFICATE", "CERT-TYPE-UNSUPPORTED", |
| 1205 | "INVALID-CERT-AUTHORITY", "INVALID-HASH-INFORMATION", |
| 1206 | "AUTHENTICATION-FAILED", "INVALID-SIGNATURE", |
| 1207 | "ADDRESS-NOTIFICATION", "NOTIFY-SA-LIFETIME", |
| 1208 | "CERTIFICATE-UNAVAILABLE", "UNSUPPORTED-EXCHANGE-TYPE", |
| 1209 | "UNEQUAL-PAYLOAD-LENGTHS", |
| 1210 | }; |
| 1211 | static const char *ipsec_notify_error_str[] = { |
| 1212 | "RESERVED", |
| 1213 | }; |
| 1214 | static const char *notify_status_str[] = { |
| 1215 | "CONNECTED", |
| 1216 | }; |
| 1217 | static const char *ipsec_notify_status_str[] = { |
| 1218 | "RESPONDER-LIFETIME", "REPLAY-STATUS", |
| 1219 | "INITIAL-CONTACT", |
| 1220 | }; |
| 1221 | /* NOTE: these macro must be called with x in proper range */ |
| 1222 | |
| 1223 | /* 0 - 8191 */ |
| 1224 | #define NOTIFY_ERROR_STR(x) \ |
| 1225 | STR_OR_ID((x), notify_error_str) |
| 1226 | |
| 1227 | /* 8192 - 16383 */ |
| 1228 | #define IPSEC_NOTIFY_ERROR_STR(x) \ |
| 1229 | STR_OR_ID((u_int)((x) - 8192), ipsec_notify_error_str) |
| 1230 | |
| 1231 | /* 16384 - 24575 */ |
| 1232 | #define NOTIFY_STATUS_STR(x) \ |
| 1233 | STR_OR_ID((u_int)((x) - 16384), notify_status_str) |
| 1234 | |
| 1235 | /* 24576 - 32767 */ |
| 1236 | #define IPSEC_NOTIFY_STATUS_STR(x) \ |
| 1237 | STR_OR_ID((u_int)((x) - 24576), ipsec_notify_status_str) |
| 1238 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1239 | ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_N))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1240 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1241 | p = (struct ikev1_pl_n *)ext; |
| 1242 | ND_TCHECK(*p); |
| 1243 | UNALIGNED_MEMCPY(&n, ext, sizeof(n)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1244 | doi = ntohl(n.doi); |
| 1245 | proto = n.prot_id; |
| 1246 | if (doi != 1) { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1247 | ND_PRINT((ndo," doi=%d", doi)); |
| 1248 | ND_PRINT((ndo," proto=%d", proto)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1249 | if (ntohs(n.type) < 8192) |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1250 | ND_PRINT((ndo," type=%s", NOTIFY_ERROR_STR(ntohs(n.type)))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1251 | else if (ntohs(n.type) < 16384) |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1252 | ND_PRINT((ndo," type=%s", numstr(ntohs(n.type)))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1253 | else if (ntohs(n.type) < 24576) |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1254 | ND_PRINT((ndo," type=%s", NOTIFY_STATUS_STR(ntohs(n.type)))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1255 | else |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1256 | ND_PRINT((ndo," type=%s", numstr(ntohs(n.type)))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1257 | if (n.spi_size) { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1258 | ND_PRINT((ndo," spi=")); |
| 1259 | if (!rawprint(ndo, (caddr_t)(p + 1), n.spi_size)) |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1260 | goto trunc; |
| 1261 | } |
| 1262 | return (u_char *)(p + 1) + n.spi_size; |
| 1263 | } |
| 1264 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1265 | ND_PRINT((ndo," doi=ipsec")); |
| 1266 | ND_PRINT((ndo," proto=%s", PROTOIDSTR(proto))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1267 | if (ntohs(n.type) < 8192) |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1268 | ND_PRINT((ndo," type=%s", NOTIFY_ERROR_STR(ntohs(n.type)))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1269 | else if (ntohs(n.type) < 16384) |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1270 | ND_PRINT((ndo," type=%s", IPSEC_NOTIFY_ERROR_STR(ntohs(n.type)))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1271 | else if (ntohs(n.type) < 24576) |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1272 | ND_PRINT((ndo," type=%s", NOTIFY_STATUS_STR(ntohs(n.type)))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1273 | else if (ntohs(n.type) < 32768) |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1274 | ND_PRINT((ndo," type=%s", IPSEC_NOTIFY_STATUS_STR(ntohs(n.type)))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1275 | else |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1276 | ND_PRINT((ndo," type=%s", numstr(ntohs(n.type)))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1277 | if (n.spi_size) { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1278 | ND_PRINT((ndo," spi=")); |
| 1279 | if (!rawprint(ndo, (caddr_t)(p + 1), n.spi_size)) |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1280 | goto trunc; |
| 1281 | } |
| 1282 | |
| 1283 | cp = (u_char *)(p + 1) + n.spi_size; |
| 1284 | ep2 = (u_char *)p + item_len; |
| 1285 | |
| 1286 | if (cp < ep) { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1287 | ND_PRINT((ndo," orig=(")); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1288 | switch (ntohs(n.type)) { |
| 1289 | case IPSECDOI_NTYPE_RESPONDER_LIFETIME: |
| 1290 | { |
| 1291 | const struct attrmap *map = oakley_t_map; |
| 1292 | size_t nmap = sizeof(oakley_t_map)/sizeof(oakley_t_map[0]); |
| 1293 | while (cp < ep && cp < ep2) { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1294 | cp = ikev1_attrmap_print(ndo, cp, |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1295 | (ep < ep2) ? ep : ep2, map, nmap); |
| 1296 | } |
| 1297 | break; |
| 1298 | } |
| 1299 | case IPSECDOI_NTYPE_REPLAY_STATUS: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1300 | ND_PRINT((ndo,"replay detection %sabled", |
| 1301 | EXTRACT_32BITS(cp) ? "en" : "dis")); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1302 | break; |
| 1303 | case ISAKMP_NTYPE_NO_PROPOSAL_CHOSEN: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1304 | if (ikev1_sub_print(ndo, ISAKMP_NPTYPE_SA, |
| 1305 | (struct isakmp_gen *)cp, ep, phase, doi, proto, |
| 1306 | depth) == NULL) |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1307 | return NULL; |
| 1308 | break; |
| 1309 | default: |
| 1310 | /* NULL is dummy */ |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1311 | isakmp_print(ndo, cp, |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1312 | item_len - sizeof(*p) - n.spi_size, |
| 1313 | NULL); |
| 1314 | } |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1315 | ND_PRINT((ndo,")")); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1316 | } |
| 1317 | return (u_char *)ext + item_len; |
| 1318 | trunc: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1319 | ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_N))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1320 | return NULL; |
| 1321 | } |
| 1322 | |
| 1323 | static const u_char * |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1324 | ikev1_d_print(netdissect_options *ndo, u_char tpay _U_, |
| 1325 | const struct isakmp_gen *ext, u_int item_len _U_, |
| 1326 | const u_char *ep _U_, u_int32_t phase _U_, u_int32_t doi0 _U_, |
| 1327 | u_int32_t proto0 _U_, int depth _U_) |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1328 | { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1329 | const struct ikev1_pl_d *p; |
| 1330 | struct ikev1_pl_d d; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1331 | const u_int8_t *q; |
| 1332 | u_int32_t doi; |
| 1333 | u_int32_t proto; |
| 1334 | int i; |
| 1335 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1336 | ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_D))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1337 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1338 | p = (struct ikev1_pl_d *)ext; |
| 1339 | ND_TCHECK(*p); |
| 1340 | UNALIGNED_MEMCPY(&d, ext, sizeof(d)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1341 | doi = ntohl(d.doi); |
| 1342 | proto = d.prot_id; |
| 1343 | if (doi != 1) { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1344 | ND_PRINT((ndo," doi=%u", doi)); |
| 1345 | ND_PRINT((ndo," proto=%u", proto)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1346 | } else { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1347 | ND_PRINT((ndo," doi=ipsec")); |
| 1348 | ND_PRINT((ndo," proto=%s", PROTOIDSTR(proto))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1349 | } |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1350 | ND_PRINT((ndo," spilen=%u", d.spi_size)); |
| 1351 | ND_PRINT((ndo," nspi=%u", ntohs(d.num_spi))); |
| 1352 | ND_PRINT((ndo," spi=")); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1353 | q = (u_int8_t *)(p + 1); |
| 1354 | for (i = 0; i < ntohs(d.num_spi); i++) { |
| 1355 | if (i != 0) |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1356 | ND_PRINT((ndo,",")); |
| 1357 | if (!rawprint(ndo, (caddr_t)q, d.spi_size)) |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1358 | goto trunc; |
| 1359 | q += d.spi_size; |
| 1360 | } |
| 1361 | return q; |
| 1362 | trunc: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1363 | ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_D))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1364 | return NULL; |
| 1365 | } |
| 1366 | |
| 1367 | static const u_char * |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1368 | ikev1_vid_print(netdissect_options *ndo, u_char tpay _U_, |
| 1369 | const struct isakmp_gen *ext, |
| 1370 | u_int item_len _U_, const u_char *ep _U_, |
| 1371 | u_int32_t phase _U_, u_int32_t doi _U_, |
| 1372 | u_int32_t proto _U_, int depth _U_) |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1373 | { |
| 1374 | struct isakmp_gen e; |
| 1375 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1376 | ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_VID))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1377 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1378 | ND_TCHECK(*ext); |
| 1379 | UNALIGNED_MEMCPY(&e, ext, sizeof(e)); |
| 1380 | ND_PRINT((ndo," len=%d", ntohs(e.len) - 4)); |
| 1381 | if (2 < ndo->ndo_vflag && 4 < ntohs(e.len)) { |
| 1382 | ND_PRINT((ndo," ")); |
| 1383 | if (!rawprint(ndo, (caddr_t)(ext + 1), ntohs(e.len) - 4)) |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1384 | goto trunc; |
| 1385 | } |
| 1386 | return (u_char *)ext + ntohs(e.len); |
| 1387 | trunc: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1388 | ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_VID))); |
| 1389 | return NULL; |
| 1390 | } |
| 1391 | |
| 1392 | /************************************************************/ |
| 1393 | /* */ |
| 1394 | /* IKE v2 - rfc4306 - dissector */ |
| 1395 | /* */ |
| 1396 | /************************************************************/ |
| 1397 | |
| 1398 | static void |
| 1399 | ikev2_pay_print(netdissect_options *ndo, const char *payname, int critical) |
| 1400 | { |
| 1401 | ND_PRINT((ndo,"%s%s:", payname, critical&0x80 ? "[C]" : "")); |
| 1402 | } |
| 1403 | |
| 1404 | static const u_char * |
| 1405 | ikev2_gen_print(netdissect_options *ndo, u_char tpay, |
| 1406 | const struct isakmp_gen *ext) |
| 1407 | { |
| 1408 | struct isakmp_gen e; |
| 1409 | |
| 1410 | ND_TCHECK(*ext); |
| 1411 | UNALIGNED_MEMCPY(&e, ext, sizeof(e)); |
| 1412 | ikev2_pay_print(ndo, NPSTR(tpay), e.critical); |
| 1413 | |
| 1414 | ND_PRINT((ndo," len=%d", ntohs(e.len) - 4)); |
| 1415 | if (2 < ndo->ndo_vflag && 4 < ntohs(e.len)) { |
| 1416 | ND_PRINT((ndo," ")); |
| 1417 | if (!rawprint(ndo, (caddr_t)(ext + 1), ntohs(e.len) - 4)) |
| 1418 | goto trunc; |
| 1419 | } |
| 1420 | return (u_char *)ext + ntohs(e.len); |
| 1421 | trunc: |
| 1422 | ND_PRINT((ndo," [|%s]", NPSTR(tpay))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1423 | return NULL; |
| 1424 | } |
| 1425 | |
| 1426 | static const u_char * |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1427 | ikev2_t_print(netdissect_options *ndo, u_char tpay _U_, int pcount, |
| 1428 | const struct isakmp_gen *ext, u_int item_len, |
| 1429 | const u_char *ep, u_int32_t phase _U_, u_int32_t doi _U_, |
| 1430 | u_int32_t proto _U_, int depth _U_) |
| 1431 | { |
| 1432 | const struct ikev2_t *p; |
| 1433 | struct ikev2_t t; |
| 1434 | u_int16_t t_id; |
| 1435 | const u_char *cp; |
| 1436 | const char *idstr; |
| 1437 | const struct attrmap *map; |
| 1438 | size_t nmap; |
| 1439 | const u_char *ep2; |
| 1440 | |
| 1441 | p = (struct ikev2_t *)ext; |
| 1442 | ND_TCHECK(*p); |
| 1443 | UNALIGNED_MEMCPY(&t, ext, sizeof(t)); |
| 1444 | ikev2_pay_print(ndo, NPSTR(ISAKMP_NPTYPE_T), t.h.critical); |
| 1445 | |
| 1446 | t_id = ntohs(t.t_id); |
| 1447 | |
| 1448 | map = NULL; |
| 1449 | nmap = 0; |
| 1450 | |
| 1451 | switch (t.t_type) { |
| 1452 | case IV2_T_ENCR: |
| 1453 | idstr = STR_OR_ID(t_id, esp_p_map); |
| 1454 | map = encr_t_map; |
| 1455 | nmap = sizeof(encr_t_map)/sizeof(encr_t_map[0]); |
| 1456 | break; |
| 1457 | |
| 1458 | case IV2_T_PRF: |
| 1459 | idstr = STR_OR_ID(t_id, prf_p_map); |
| 1460 | break; |
| 1461 | |
| 1462 | case IV2_T_INTEG: |
| 1463 | idstr = STR_OR_ID(t_id, integ_p_map); |
| 1464 | break; |
| 1465 | |
| 1466 | case IV2_T_DH: |
| 1467 | idstr = STR_OR_ID(t_id, dh_p_map); |
| 1468 | break; |
| 1469 | |
| 1470 | case IV2_T_ESN: |
| 1471 | idstr = STR_OR_ID(t_id, esn_p_map); |
| 1472 | break; |
| 1473 | |
| 1474 | default: |
| 1475 | idstr = NULL; |
| 1476 | break; |
| 1477 | } |
| 1478 | |
| 1479 | if (idstr) |
| 1480 | ND_PRINT((ndo," #%u type=%s id=%s ", pcount, |
| 1481 | STR_OR_ID(t.t_type, ikev2_t_type_map), |
| 1482 | idstr)); |
| 1483 | else |
| 1484 | ND_PRINT((ndo," #%u type=%s id=%u ", pcount, |
| 1485 | STR_OR_ID(t.t_type, ikev2_t_type_map), |
| 1486 | t.t_id)); |
| 1487 | cp = (u_char *)(p + 1); |
| 1488 | ep2 = (u_char *)p + item_len; |
| 1489 | while (cp < ep && cp < ep2) { |
| 1490 | if (map && nmap) { |
| 1491 | cp = ikev1_attrmap_print(ndo, cp, (ep < ep2) ? ep : ep2, |
| 1492 | map, nmap); |
| 1493 | } else |
| 1494 | cp = ikev1_attr_print(ndo, cp, (ep < ep2) ? ep : ep2); |
| 1495 | } |
| 1496 | if (ep < ep2) |
| 1497 | ND_PRINT((ndo,"...")); |
| 1498 | return cp; |
| 1499 | trunc: |
| 1500 | ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_T))); |
| 1501 | return NULL; |
| 1502 | } |
| 1503 | |
| 1504 | static const u_char * |
| 1505 | ikev2_p_print(netdissect_options *ndo, u_char tpay _U_, int pcount _U_, |
| 1506 | const struct isakmp_gen *ext, u_int item_len _U_, |
| 1507 | const u_char *ep, u_int32_t phase, u_int32_t doi0, |
| 1508 | u_int32_t proto0 _U_, int depth) |
| 1509 | { |
| 1510 | const struct ikev2_p *p; |
| 1511 | struct ikev2_p prop; |
| 1512 | const u_char *cp; |
| 1513 | |
| 1514 | p = (struct ikev2_p *)ext; |
| 1515 | ND_TCHECK(*p); |
| 1516 | UNALIGNED_MEMCPY(&prop, ext, sizeof(prop)); |
| 1517 | ikev2_pay_print(ndo, NPSTR(ISAKMP_NPTYPE_P), prop.h.critical); |
| 1518 | |
| 1519 | ND_PRINT((ndo," #%u protoid=%s transform=%d len=%u", |
| 1520 | prop.p_no, PROTOIDSTR(prop.prot_id), |
| 1521 | prop.num_t, ntohs(prop.h.len))); |
| 1522 | if (prop.spi_size) { |
| 1523 | ND_PRINT((ndo," spi=")); |
| 1524 | if (!rawprint(ndo, (caddr_t)(p + 1), prop.spi_size)) |
| 1525 | goto trunc; |
| 1526 | } |
| 1527 | |
| 1528 | ext = (struct isakmp_gen *)((u_char *)(p + 1) + prop.spi_size); |
| 1529 | ND_TCHECK(*ext); |
| 1530 | |
| 1531 | cp = ikev2_sub_print(ndo, NULL, ISAKMP_NPTYPE_T, ext, ep, phase, doi0, |
| 1532 | prop.prot_id, depth); |
| 1533 | |
| 1534 | return cp; |
| 1535 | trunc: |
| 1536 | ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_P))); |
| 1537 | return NULL; |
| 1538 | } |
| 1539 | |
| 1540 | static const u_char * |
| 1541 | ikev2_sa_print(netdissect_options *ndo, u_char tpay, |
| 1542 | const struct isakmp_gen *ext1, |
| 1543 | u_int item_len _U_, const u_char *ep _U_, |
| 1544 | u_int32_t phase _U_, u_int32_t doi _U_, |
| 1545 | u_int32_t proto _U_, int depth _U_) |
| 1546 | { |
| 1547 | struct isakmp_gen e; |
| 1548 | int osa_length, sa_length; |
| 1549 | |
| 1550 | ND_TCHECK(*ext1); |
| 1551 | UNALIGNED_MEMCPY(&e, ext1, sizeof(e)); |
| 1552 | ikev2_pay_print(ndo, "sa", e.critical); |
| 1553 | |
| 1554 | osa_length= ntohs(e.len); |
| 1555 | sa_length = osa_length - 4; |
| 1556 | ND_PRINT((ndo," len=%d", sa_length)); |
| 1557 | |
| 1558 | ikev2_sub_print(ndo, NULL, ISAKMP_NPTYPE_P, |
| 1559 | ext1+1, ep, |
| 1560 | 0, 0, 0, depth); |
| 1561 | |
| 1562 | return (u_char *)ext1 + osa_length; |
| 1563 | trunc: |
| 1564 | ND_PRINT((ndo," [|%s]", NPSTR(tpay))); |
| 1565 | return NULL; |
| 1566 | } |
| 1567 | |
| 1568 | static const u_char * |
| 1569 | ikev2_ke_print(netdissect_options *ndo, u_char tpay, |
| 1570 | const struct isakmp_gen *ext, |
| 1571 | u_int item_len _U_, const u_char *ep _U_, |
| 1572 | u_int32_t phase _U_, u_int32_t doi _U_, |
| 1573 | u_int32_t proto _U_, int depth _U_) |
| 1574 | { |
| 1575 | struct ikev2_ke ke; |
| 1576 | struct ikev2_ke *k; |
| 1577 | |
| 1578 | k = (struct ikev2_ke *)ext; |
| 1579 | ND_TCHECK(*ext); |
| 1580 | UNALIGNED_MEMCPY(&ke, ext, sizeof(ke)); |
| 1581 | ikev2_pay_print(ndo, NPSTR(tpay), ke.h.critical); |
| 1582 | |
| 1583 | ND_PRINT((ndo," len=%u group=%s", ntohs(ke.h.len) - 8, |
| 1584 | STR_OR_ID(ntohs(ke.ke_group), dh_p_map))); |
| 1585 | |
| 1586 | if (2 < ndo->ndo_vflag && 8 < ntohs(ke.h.len)) { |
| 1587 | ND_PRINT((ndo," ")); |
| 1588 | if (!rawprint(ndo, (caddr_t)(k + 1), ntohs(ke.h.len) - 8)) |
| 1589 | goto trunc; |
| 1590 | } |
| 1591 | return (u_char *)ext + ntohs(ke.h.len); |
| 1592 | trunc: |
| 1593 | ND_PRINT((ndo," [|%s]", NPSTR(tpay))); |
| 1594 | return NULL; |
| 1595 | } |
| 1596 | |
| 1597 | static const u_char * |
| 1598 | ikev2_ID_print(netdissect_options *ndo, u_char tpay, |
| 1599 | const struct isakmp_gen *ext, |
| 1600 | u_int item_len _U_, const u_char *ep _U_, |
| 1601 | u_int32_t phase _U_, u_int32_t doi _U_, |
| 1602 | u_int32_t proto _U_, int depth _U_) |
| 1603 | { |
| 1604 | struct ikev2_id id; |
| 1605 | int id_len, idtype_len, i; |
| 1606 | unsigned int dumpascii, dumphex; |
| 1607 | unsigned char *typedata; |
| 1608 | |
| 1609 | ND_TCHECK(*ext); |
| 1610 | UNALIGNED_MEMCPY(&id, ext, sizeof(id)); |
| 1611 | ikev2_pay_print(ndo, NPSTR(tpay), id.h.critical); |
| 1612 | |
| 1613 | id_len = ntohs(id.h.len); |
| 1614 | |
| 1615 | ND_PRINT((ndo," len=%d", id_len - 4)); |
| 1616 | if (2 < ndo->ndo_vflag && 4 < id_len) { |
| 1617 | ND_PRINT((ndo," ")); |
| 1618 | if (!rawprint(ndo, (caddr_t)(ext + 1), id_len - 4)) |
| 1619 | goto trunc; |
| 1620 | } |
| 1621 | |
| 1622 | idtype_len =id_len - sizeof(struct ikev2_id); |
| 1623 | dumpascii = 0; |
| 1624 | dumphex = 0; |
| 1625 | typedata = (unsigned char *)(ext)+sizeof(struct ikev2_id); |
| 1626 | |
| 1627 | switch(id.type) { |
| 1628 | case ID_IPV4_ADDR: |
| 1629 | ND_PRINT((ndo, " ipv4:")); |
| 1630 | dumphex=1; |
| 1631 | break; |
| 1632 | case ID_FQDN: |
| 1633 | ND_PRINT((ndo, " fqdn:")); |
| 1634 | dumpascii=1; |
| 1635 | break; |
| 1636 | case ID_RFC822_ADDR: |
| 1637 | ND_PRINT((ndo, " rfc822:")); |
| 1638 | dumpascii=1; |
| 1639 | break; |
| 1640 | case ID_IPV6_ADDR: |
| 1641 | ND_PRINT((ndo, " ipv6:")); |
| 1642 | dumphex=1; |
| 1643 | break; |
| 1644 | case ID_DER_ASN1_DN: |
| 1645 | ND_PRINT((ndo, " dn:")); |
| 1646 | dumphex=1; |
| 1647 | break; |
| 1648 | case ID_DER_ASN1_GN: |
| 1649 | ND_PRINT((ndo, " gn:")); |
| 1650 | dumphex=1; |
| 1651 | break; |
| 1652 | case ID_KEY_ID: |
| 1653 | ND_PRINT((ndo, " keyid:")); |
| 1654 | dumphex=1; |
| 1655 | break; |
| 1656 | } |
| 1657 | |
| 1658 | if(dumpascii) { |
| 1659 | ND_TCHECK2(*typedata, idtype_len); |
| 1660 | for(i=0; i<idtype_len; i++) { |
| 1661 | if(ND_ISPRINT(typedata[i])) { |
| 1662 | ND_PRINT((ndo, "%c", typedata[i])); |
| 1663 | } else { |
| 1664 | ND_PRINT((ndo, ".")); |
| 1665 | } |
| 1666 | } |
| 1667 | } |
| 1668 | if(dumphex) { |
| 1669 | if (!rawprint(ndo, (caddr_t)typedata, idtype_len)) |
| 1670 | goto trunc; |
| 1671 | } |
| 1672 | |
| 1673 | return (u_char *)ext + id_len; |
| 1674 | trunc: |
| 1675 | ND_PRINT((ndo," [|%s]", NPSTR(tpay))); |
| 1676 | return NULL; |
| 1677 | } |
| 1678 | |
| 1679 | static const u_char * |
| 1680 | ikev2_cert_print(netdissect_options *ndo, u_char tpay, |
| 1681 | const struct isakmp_gen *ext, |
| 1682 | u_int item_len _U_, const u_char *ep _U_, |
| 1683 | u_int32_t phase _U_, u_int32_t doi _U_, |
| 1684 | u_int32_t proto _U_, int depth _U_) |
| 1685 | { |
| 1686 | return ikev2_gen_print(ndo, tpay, ext); |
| 1687 | } |
| 1688 | |
| 1689 | static const u_char * |
| 1690 | ikev2_cr_print(netdissect_options *ndo, u_char tpay, |
| 1691 | const struct isakmp_gen *ext, |
| 1692 | u_int item_len _U_, const u_char *ep _U_, |
| 1693 | u_int32_t phase _U_, u_int32_t doi _U_, |
| 1694 | u_int32_t proto _U_, int depth _U_) |
| 1695 | { |
| 1696 | return ikev2_gen_print(ndo, tpay, ext); |
| 1697 | } |
| 1698 | |
| 1699 | static const u_char * |
| 1700 | ikev2_auth_print(netdissect_options *ndo, u_char tpay, |
| 1701 | const struct isakmp_gen *ext, |
| 1702 | u_int item_len _U_, const u_char *ep _U_, |
| 1703 | u_int32_t phase _U_, u_int32_t doi _U_, |
| 1704 | u_int32_t proto _U_, int depth _U_) |
| 1705 | { |
| 1706 | struct ikev2_auth a; |
| 1707 | const char *v2_auth[]={ "invalid", "rsasig", |
| 1708 | "shared-secret", "dsssig" }; |
| 1709 | u_char *authdata = (u_char*)ext + sizeof(a); |
| 1710 | unsigned int len; |
| 1711 | |
| 1712 | ND_TCHECK(*ext); |
| 1713 | UNALIGNED_MEMCPY(&a, ext, sizeof(a)); |
| 1714 | ikev2_pay_print(ndo, NPSTR(tpay), a.h.critical); |
| 1715 | len = ntohs(a.h.len); |
| 1716 | |
| 1717 | ND_PRINT((ndo," len=%d method=%s", len-4, |
| 1718 | STR_OR_ID(a.auth_method, v2_auth))); |
| 1719 | |
| 1720 | if (1 < ndo->ndo_vflag && 4 < len) { |
| 1721 | ND_PRINT((ndo," authdata=(")); |
| 1722 | if (!rawprint(ndo, (caddr_t)authdata, len - sizeof(a))) |
| 1723 | goto trunc; |
| 1724 | ND_PRINT((ndo,") ")); |
| 1725 | } else if(ndo->ndo_vflag && 4 < len) { |
| 1726 | if(!ike_show_somedata(ndo, authdata, ep)) goto trunc; |
| 1727 | } |
| 1728 | |
| 1729 | return (u_char *)ext + len; |
| 1730 | trunc: |
| 1731 | ND_PRINT((ndo," [|%s]", NPSTR(tpay))); |
| 1732 | return NULL; |
| 1733 | } |
| 1734 | |
| 1735 | static const u_char * |
| 1736 | ikev2_nonce_print(netdissect_options *ndo, u_char tpay, |
| 1737 | const struct isakmp_gen *ext, |
| 1738 | u_int item_len _U_, const u_char *ep _U_, |
| 1739 | u_int32_t phase _U_, u_int32_t doi _U_, |
| 1740 | u_int32_t proto _U_, int depth _U_) |
| 1741 | { |
| 1742 | struct isakmp_gen e; |
| 1743 | |
| 1744 | ND_TCHECK(*ext); |
| 1745 | UNALIGNED_MEMCPY(&e, ext, sizeof(e)); |
| 1746 | ikev2_pay_print(ndo, "nonce", e.critical); |
| 1747 | |
| 1748 | ND_PRINT((ndo," len=%d", ntohs(e.len) - 4)); |
| 1749 | if (1 < ndo->ndo_vflag && 4 < ntohs(e.len)) { |
| 1750 | ND_PRINT((ndo," nonce=(")); |
| 1751 | if (!rawprint(ndo, (caddr_t)(ext + 1), ntohs(e.len) - 4)) |
| 1752 | goto trunc; |
| 1753 | ND_PRINT((ndo,") ")); |
| 1754 | } else if(ndo->ndo_vflag && 4 < ntohs(e.len)) { |
| 1755 | if(!ike_show_somedata(ndo, (const u_char *)(ext+1), ep)) goto trunc; |
| 1756 | } |
| 1757 | |
| 1758 | return (u_char *)ext + ntohs(e.len); |
| 1759 | trunc: |
| 1760 | ND_PRINT((ndo," [|%s]", NPSTR(tpay))); |
| 1761 | return NULL; |
| 1762 | } |
| 1763 | |
| 1764 | /* notify payloads */ |
| 1765 | static const u_char * |
| 1766 | ikev2_n_print(netdissect_options *ndo, u_char tpay _U_, |
| 1767 | const struct isakmp_gen *ext, |
| 1768 | u_int item_len _U_, const u_char *ep _U_, |
| 1769 | u_int32_t phase _U_, u_int32_t doi _U_, |
| 1770 | u_int32_t proto _U_, int depth _U_) |
| 1771 | { |
| 1772 | struct ikev2_n *p, n; |
| 1773 | const u_char *cp; |
| 1774 | u_char showspi, showdata, showsomedata; |
| 1775 | const char *notify_name; |
| 1776 | u_int32_t type; |
| 1777 | |
| 1778 | p = (struct ikev2_n *)ext; |
| 1779 | ND_TCHECK(*p); |
| 1780 | UNALIGNED_MEMCPY(&n, ext, sizeof(n)); |
| 1781 | ikev2_pay_print(ndo, NPSTR(ISAKMP_NPTYPE_N), n.h.critical); |
| 1782 | |
| 1783 | showspi = 1; |
| 1784 | showdata = 0; |
| 1785 | showsomedata=0; |
| 1786 | notify_name=NULL; |
| 1787 | |
| 1788 | ND_PRINT((ndo," prot_id=%s", PROTOIDSTR(n.prot_id))); |
| 1789 | |
| 1790 | type = ntohs(n.type); |
| 1791 | |
| 1792 | /* notify space is annoying sparse */ |
| 1793 | switch(type) { |
| 1794 | case IV2_NOTIFY_UNSUPPORTED_CRITICAL_PAYLOAD: |
| 1795 | notify_name = "unsupported_critical_payload"; |
| 1796 | showspi = 0; |
| 1797 | break; |
| 1798 | |
| 1799 | case IV2_NOTIFY_INVALID_IKE_SPI: |
| 1800 | notify_name = "invalid_ike_spi"; |
| 1801 | showspi = 1; |
| 1802 | break; |
| 1803 | |
| 1804 | case IV2_NOTIFY_INVALID_MAJOR_VERSION: |
| 1805 | notify_name = "invalid_major_version"; |
| 1806 | showspi = 0; |
| 1807 | break; |
| 1808 | |
| 1809 | case IV2_NOTIFY_INVALID_SYNTAX: |
| 1810 | notify_name = "invalid_syntax"; |
| 1811 | showspi = 1; |
| 1812 | break; |
| 1813 | |
| 1814 | case IV2_NOTIFY_INVALID_MESSAGE_ID: |
| 1815 | notify_name = "invalid_message_id"; |
| 1816 | showspi = 1; |
| 1817 | break; |
| 1818 | |
| 1819 | case IV2_NOTIFY_INVALID_SPI: |
| 1820 | notify_name = "invalid_spi"; |
| 1821 | showspi = 1; |
| 1822 | break; |
| 1823 | |
| 1824 | case IV2_NOTIFY_NO_PROPOSAL_CHOSEN: |
| 1825 | notify_name = "no_protocol_chosen"; |
| 1826 | showspi = 1; |
| 1827 | break; |
| 1828 | |
| 1829 | case IV2_NOTIFY_INVALID_KE_PAYLOAD: |
| 1830 | notify_name = "invalid_ke_payload"; |
| 1831 | showspi = 1; |
| 1832 | break; |
| 1833 | |
| 1834 | case IV2_NOTIFY_AUTHENTICATION_FAILED: |
| 1835 | notify_name = "authentication_failed"; |
| 1836 | showspi = 1; |
| 1837 | break; |
| 1838 | |
| 1839 | case IV2_NOTIFY_SINGLE_PAIR_REQUIRED: |
| 1840 | notify_name = "single_pair_required"; |
| 1841 | showspi = 1; |
| 1842 | break; |
| 1843 | |
| 1844 | case IV2_NOTIFY_NO_ADDITIONAL_SAS: |
| 1845 | notify_name = "no_additional_sas"; |
| 1846 | showspi = 0; |
| 1847 | break; |
| 1848 | |
| 1849 | case IV2_NOTIFY_INTERNAL_ADDRESS_FAILURE: |
| 1850 | notify_name = "internal_address_failure"; |
| 1851 | showspi = 0; |
| 1852 | break; |
| 1853 | |
| 1854 | case IV2_NOTIFY_FAILED_CP_REQUIRED: |
| 1855 | notify_name = "failed:cp_required"; |
| 1856 | showspi = 0; |
| 1857 | break; |
| 1858 | |
| 1859 | case IV2_NOTIFY_INVALID_SELECTORS: |
| 1860 | notify_name = "invalid_selectors"; |
| 1861 | showspi = 0; |
| 1862 | break; |
| 1863 | |
| 1864 | case IV2_NOTIFY_INITIAL_CONTACT: |
| 1865 | notify_name = "initial_contact"; |
| 1866 | showspi = 0; |
| 1867 | break; |
| 1868 | |
| 1869 | case IV2_NOTIFY_SET_WINDOW_SIZE: |
| 1870 | notify_name = "set_window_size"; |
| 1871 | showspi = 0; |
| 1872 | break; |
| 1873 | |
| 1874 | case IV2_NOTIFY_ADDITIONAL_TS_POSSIBLE: |
| 1875 | notify_name = "additional_ts_possible"; |
| 1876 | showspi = 0; |
| 1877 | break; |
| 1878 | |
| 1879 | case IV2_NOTIFY_IPCOMP_SUPPORTED: |
| 1880 | notify_name = "ipcomp_supported"; |
| 1881 | showspi = 0; |
| 1882 | break; |
| 1883 | |
| 1884 | case IV2_NOTIFY_NAT_DETECTION_SOURCE_IP: |
| 1885 | notify_name = "nat_detection_source_ip"; |
| 1886 | showspi = 1; |
| 1887 | break; |
| 1888 | |
| 1889 | case IV2_NOTIFY_NAT_DETECTION_DESTINATION_IP: |
| 1890 | notify_name = "nat_detection_destination_ip"; |
| 1891 | showspi = 1; |
| 1892 | break; |
| 1893 | |
| 1894 | case IV2_NOTIFY_COOKIE: |
| 1895 | notify_name = "cookie"; |
| 1896 | showspi = 1; |
| 1897 | showsomedata= 1; |
| 1898 | showdata= 0; |
| 1899 | break; |
| 1900 | |
| 1901 | case IV2_NOTIFY_USE_TRANSPORT_MODE: |
| 1902 | notify_name = "use_transport_mode"; |
| 1903 | showspi = 0; |
| 1904 | break; |
| 1905 | |
| 1906 | case IV2_NOTIFY_HTTP_CERT_LOOKUP_SUPPORTED: |
| 1907 | notify_name = "http_cert_lookup_supported"; |
| 1908 | showspi = 0; |
| 1909 | break; |
| 1910 | |
| 1911 | case IV2_NOTIFY_REKEY_SA: |
| 1912 | notify_name = "rekey_sa"; |
| 1913 | showspi = 1; |
| 1914 | break; |
| 1915 | |
| 1916 | case IV2_NOTIFY_ESP_TFC_PADDING_NOT_SUPPORTED: |
| 1917 | notify_name = "tfc_padding_not_supported"; |
| 1918 | showspi = 0; |
| 1919 | break; |
| 1920 | |
| 1921 | case IV2_NOTIFY_NON_FIRST_FRAGMENTS_ALSO: |
| 1922 | notify_name = "non_first_fragment_also"; |
| 1923 | showspi = 0; |
| 1924 | break; |
| 1925 | |
| 1926 | default: |
| 1927 | if (type < 8192) { |
| 1928 | notify_name="error"; |
| 1929 | } else if(type < 16384) { |
| 1930 | notify_name="private-error"; |
| 1931 | } else if(type < 40960) { |
| 1932 | notify_name="status"; |
| 1933 | } else { |
| 1934 | notify_name="private-status"; |
| 1935 | } |
| 1936 | } |
| 1937 | |
| 1938 | if(notify_name) { |
| 1939 | ND_PRINT((ndo," type=%u(%s)", type, notify_name)); |
| 1940 | } |
| 1941 | |
| 1942 | |
| 1943 | if (showspi && n.spi_size) { |
| 1944 | ND_PRINT((ndo," spi=")); |
| 1945 | if (!rawprint(ndo, (caddr_t)(p + 1), n.spi_size)) |
| 1946 | goto trunc; |
| 1947 | } |
| 1948 | |
| 1949 | cp = (u_char *)(p + 1) + n.spi_size; |
| 1950 | |
| 1951 | if(3 < ndo->ndo_vflag) { |
| 1952 | showdata = 1; |
| 1953 | } |
| 1954 | |
| 1955 | if ((showdata || (showsomedata && ep-cp < 30)) && cp < ep) { |
| 1956 | ND_PRINT((ndo," data=(")); |
| 1957 | if (!rawprint(ndo, (caddr_t)(cp), ep - cp)) |
| 1958 | goto trunc; |
| 1959 | |
| 1960 | ND_PRINT((ndo,")")); |
| 1961 | |
| 1962 | } else if(showsomedata && cp < ep) { |
| 1963 | if(!ike_show_somedata(ndo, cp, ep)) goto trunc; |
| 1964 | } |
| 1965 | |
| 1966 | return (u_char *)ext + item_len; |
| 1967 | trunc: |
| 1968 | ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_N))); |
| 1969 | return NULL; |
| 1970 | } |
| 1971 | |
| 1972 | static const u_char * |
| 1973 | ikev2_d_print(netdissect_options *ndo, u_char tpay, |
| 1974 | const struct isakmp_gen *ext, |
| 1975 | u_int item_len _U_, const u_char *ep _U_, |
| 1976 | u_int32_t phase _U_, u_int32_t doi _U_, |
| 1977 | u_int32_t proto _U_, int depth _U_) |
| 1978 | { |
| 1979 | return ikev2_gen_print(ndo, tpay, ext); |
| 1980 | } |
| 1981 | |
| 1982 | static const u_char * |
| 1983 | ikev2_vid_print(netdissect_options *ndo, u_char tpay, |
| 1984 | const struct isakmp_gen *ext, |
| 1985 | u_int item_len _U_, const u_char *ep _U_, |
| 1986 | u_int32_t phase _U_, u_int32_t doi _U_, |
| 1987 | u_int32_t proto _U_, int depth _U_) |
| 1988 | { |
| 1989 | struct isakmp_gen e; |
| 1990 | const u_char *vid; |
| 1991 | int i, len; |
| 1992 | |
| 1993 | ND_TCHECK(*ext); |
| 1994 | UNALIGNED_MEMCPY(&e, ext, sizeof(e)); |
| 1995 | ikev2_pay_print(ndo, NPSTR(tpay), e.critical); |
| 1996 | ND_PRINT((ndo," len=%d vid=", ntohs(e.len) - 4)); |
| 1997 | |
| 1998 | vid = (const u_char *)(ext+1); |
| 1999 | len = ntohs(e.len) - 4; |
| 2000 | ND_TCHECK2(*vid, len); |
| 2001 | for(i=0; i<len; i++) { |
| 2002 | if(ND_ISPRINT(vid[i])) ND_PRINT((ndo, "%c", vid[i])); |
| 2003 | else ND_PRINT((ndo, ".")); |
| 2004 | } |
| 2005 | if (2 < ndo->ndo_vflag && 4 < len) { |
| 2006 | ND_PRINT((ndo," ")); |
| 2007 | if (!rawprint(ndo, (caddr_t)(ext + 1), ntohs(e.len) - 4)) |
| 2008 | goto trunc; |
| 2009 | } |
| 2010 | return (u_char *)ext + ntohs(e.len); |
| 2011 | trunc: |
| 2012 | ND_PRINT((ndo," [|%s]", NPSTR(tpay))); |
| 2013 | return NULL; |
| 2014 | } |
| 2015 | |
| 2016 | static const u_char * |
| 2017 | ikev2_TS_print(netdissect_options *ndo, u_char tpay, |
| 2018 | const struct isakmp_gen *ext, |
| 2019 | u_int item_len _U_, const u_char *ep _U_, |
| 2020 | u_int32_t phase _U_, u_int32_t doi _U_, |
| 2021 | u_int32_t proto _U_, int depth _U_) |
| 2022 | { |
| 2023 | return ikev2_gen_print(ndo, tpay, ext); |
| 2024 | } |
| 2025 | |
| 2026 | static const u_char * |
| 2027 | ikev2_e_print(netdissect_options *ndo, |
| 2028 | #ifndef HAVE_LIBCRYPTO |
| 2029 | _U_ |
| 2030 | #endif |
| 2031 | struct isakmp *base, |
| 2032 | u_char tpay, |
| 2033 | const struct isakmp_gen *ext, |
| 2034 | u_int item_len _U_, const u_char *ep _U_, |
| 2035 | #ifndef HAVE_LIBCRYPTO |
| 2036 | _U_ |
| 2037 | #endif |
| 2038 | u_int32_t phase, |
| 2039 | #ifndef HAVE_LIBCRYPTO |
| 2040 | _U_ |
| 2041 | #endif |
| 2042 | u_int32_t doi, |
| 2043 | #ifndef HAVE_LIBCRYPTO |
| 2044 | _U_ |
| 2045 | #endif |
| 2046 | u_int32_t proto, |
| 2047 | #ifndef HAVE_LIBCRYPTO |
| 2048 | _U_ |
| 2049 | #endif |
| 2050 | int depth) |
| 2051 | { |
| 2052 | struct isakmp_gen e; |
| 2053 | u_char *dat; |
| 2054 | volatile int dlen; |
| 2055 | |
| 2056 | ND_TCHECK(*ext); |
| 2057 | UNALIGNED_MEMCPY(&e, ext, sizeof(e)); |
| 2058 | ikev2_pay_print(ndo, NPSTR(tpay), e.critical); |
| 2059 | |
| 2060 | dlen = ntohs(e.len)-4; |
| 2061 | |
| 2062 | ND_PRINT((ndo," len=%d", dlen)); |
| 2063 | if (2 < ndo->ndo_vflag && 4 < dlen) { |
| 2064 | ND_PRINT((ndo," ")); |
| 2065 | if (!rawprint(ndo, (caddr_t)(ext + 1), dlen)) |
| 2066 | goto trunc; |
| 2067 | } |
| 2068 | |
| 2069 | dat = (u_char *)(ext+1); |
| 2070 | ND_TCHECK2(*dat, dlen); |
| 2071 | |
| 2072 | #ifdef HAVE_LIBCRYPTO |
| 2073 | /* try to decypt it! */ |
| 2074 | if(esp_print_decrypt_buffer_by_ikev2(ndo, |
| 2075 | base->flags & ISAKMP_FLAG_I, |
| 2076 | base->i_ck, base->r_ck, |
| 2077 | dat, dat+dlen)) { |
| 2078 | |
| 2079 | ext = (const struct isakmp_gen *)ndo->ndo_packetp; |
| 2080 | |
| 2081 | /* got it decrypted, print stuff inside. */ |
| 2082 | ikev2_sub_print(ndo, base, e.np, ext, ndo->ndo_snapend, |
| 2083 | phase, doi, proto, depth+1); |
| 2084 | } |
| 2085 | #endif |
| 2086 | |
| 2087 | |
| 2088 | /* always return NULL, because E must be at end, and NP refers |
| 2089 | * to what was inside. |
| 2090 | */ |
| 2091 | return NULL; |
| 2092 | trunc: |
| 2093 | ND_PRINT((ndo," [|%s]", NPSTR(tpay))); |
| 2094 | return NULL; |
| 2095 | } |
| 2096 | |
| 2097 | static const u_char * |
| 2098 | ikev2_cp_print(netdissect_options *ndo, u_char tpay, |
| 2099 | const struct isakmp_gen *ext, |
| 2100 | u_int item_len _U_, const u_char *ep _U_, |
| 2101 | u_int32_t phase _U_, u_int32_t doi _U_, |
| 2102 | u_int32_t proto _U_, int depth _U_) |
| 2103 | { |
| 2104 | return ikev2_gen_print(ndo, tpay, ext); |
| 2105 | } |
| 2106 | |
| 2107 | static const u_char * |
| 2108 | ikev2_eap_print(netdissect_options *ndo, u_char tpay, |
| 2109 | const struct isakmp_gen *ext, |
| 2110 | u_int item_len _U_, const u_char *ep _U_, |
| 2111 | u_int32_t phase _U_, u_int32_t doi _U_, |
| 2112 | u_int32_t proto _U_, int depth _U_) |
| 2113 | { |
| 2114 | return ikev2_gen_print(ndo, tpay, ext); |
| 2115 | } |
| 2116 | |
| 2117 | static const u_char * |
| 2118 | ike_sub0_print(netdissect_options *ndo, |
| 2119 | u_char np, const struct isakmp_gen *ext, const u_char *ep, |
| 2120 | |
| 2121 | u_int32_t phase, u_int32_t doi, u_int32_t proto, int depth) |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2122 | { |
| 2123 | const u_char *cp; |
| 2124 | struct isakmp_gen e; |
| 2125 | u_int item_len; |
| 2126 | |
| 2127 | cp = (u_char *)ext; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2128 | ND_TCHECK(*ext); |
| 2129 | UNALIGNED_MEMCPY(&e, ext, sizeof(e)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2130 | |
| 2131 | /* |
| 2132 | * Since we can't have a payload length of less than 4 bytes, |
| 2133 | * we need to bail out here if the generic header is nonsensical |
| 2134 | * or truncated, otherwise we could loop forever processing |
| 2135 | * zero-length items or otherwise misdissect the packet. |
| 2136 | */ |
| 2137 | item_len = ntohs(e.len); |
| 2138 | if (item_len <= 4) |
| 2139 | return NULL; |
| 2140 | |
| 2141 | if (NPFUNC(np)) { |
| 2142 | /* |
| 2143 | * XXX - what if item_len is too short, or too long, |
| 2144 | * for this payload type? |
| 2145 | */ |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2146 | cp = (*npfunc[np])(ndo, np, ext, item_len, ep, phase, doi, proto, depth); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2147 | } else { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2148 | ND_PRINT((ndo,"%s", NPSTR(np))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2149 | cp += item_len; |
| 2150 | } |
| 2151 | |
| 2152 | return cp; |
| 2153 | trunc: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2154 | ND_PRINT((ndo," [|isakmp]")); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2155 | return NULL; |
| 2156 | } |
| 2157 | |
| 2158 | static const u_char * |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2159 | ikev1_sub_print(netdissect_options *ndo, |
| 2160 | u_char np, const struct isakmp_gen *ext, const u_char *ep, |
| 2161 | u_int32_t phase, u_int32_t doi, u_int32_t proto, int depth) |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2162 | { |
| 2163 | const u_char *cp; |
| 2164 | int i; |
| 2165 | struct isakmp_gen e; |
| 2166 | |
| 2167 | cp = (const u_char *)ext; |
| 2168 | |
| 2169 | while (np) { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2170 | ND_TCHECK(*ext); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2171 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2172 | UNALIGNED_MEMCPY(&e, ext, sizeof(e)); |
| 2173 | |
| 2174 | ND_TCHECK2(*ext, ntohs(e.len)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2175 | |
| 2176 | depth++; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2177 | ND_PRINT((ndo,"\n")); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2178 | for (i = 0; i < depth; i++) |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2179 | ND_PRINT((ndo," ")); |
| 2180 | ND_PRINT((ndo,"(")); |
| 2181 | cp = ike_sub0_print(ndo, np, ext, ep, phase, doi, proto, depth); |
| 2182 | ND_PRINT((ndo,")")); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2183 | depth--; |
| 2184 | |
| 2185 | if (cp == NULL) { |
| 2186 | /* Zero-length subitem */ |
| 2187 | return NULL; |
| 2188 | } |
| 2189 | |
| 2190 | np = e.np; |
| 2191 | ext = (struct isakmp_gen *)cp; |
| 2192 | } |
| 2193 | return cp; |
| 2194 | trunc: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2195 | ND_PRINT((ndo," [|%s]", NPSTR(np))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2196 | return NULL; |
| 2197 | } |
| 2198 | |
| 2199 | static char * |
| 2200 | numstr(int x) |
| 2201 | { |
| 2202 | static char buf[20]; |
| 2203 | snprintf(buf, sizeof(buf), "#%d", x); |
| 2204 | return buf; |
| 2205 | } |
| 2206 | |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2207 | static void |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2208 | ikev1_print(netdissect_options *ndo, |
| 2209 | const u_char *bp, u_int length, |
| 2210 | const u_char *bp2, struct isakmp *base) |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2211 | { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2212 | const struct isakmp *p; |
| 2213 | const u_char *ep; |
| 2214 | u_char np; |
| 2215 | int i; |
| 2216 | int phase; |
| 2217 | |
| 2218 | p = (const struct isakmp *)bp; |
| 2219 | ep = ndo->ndo_snapend; |
| 2220 | |
| 2221 | phase = (EXTRACT_32BITS(base->msgid) == 0) ? 1 : 2; |
| 2222 | if (phase == 1) |
| 2223 | ND_PRINT((ndo," phase %d", phase)); |
| 2224 | else |
| 2225 | ND_PRINT((ndo," phase %d/others", phase)); |
| 2226 | |
| 2227 | i = cookie_find(&base->i_ck); |
| 2228 | if (i < 0) { |
| 2229 | if (iszero((u_char *)&base->r_ck, sizeof(base->r_ck))) { |
| 2230 | /* the first packet */ |
| 2231 | ND_PRINT((ndo," I")); |
| 2232 | if (bp2) |
| 2233 | cookie_record(&base->i_ck, bp2); |
| 2234 | } else |
| 2235 | ND_PRINT((ndo," ?")); |
| 2236 | } else { |
| 2237 | if (bp2 && cookie_isinitiator(i, bp2)) |
| 2238 | ND_PRINT((ndo," I")); |
| 2239 | else if (bp2 && cookie_isresponder(i, bp2)) |
| 2240 | ND_PRINT((ndo," R")); |
| 2241 | else |
| 2242 | ND_PRINT((ndo," ?")); |
| 2243 | } |
| 2244 | |
| 2245 | ND_PRINT((ndo," %s", ETYPESTR(base->etype))); |
| 2246 | if (base->flags) { |
| 2247 | ND_PRINT((ndo,"[%s%s]", base->flags & ISAKMP_FLAG_E ? "E" : "", |
| 2248 | base->flags & ISAKMP_FLAG_C ? "C" : "")); |
| 2249 | } |
| 2250 | |
| 2251 | if (ndo->ndo_vflag) { |
| 2252 | const struct isakmp_gen *ext; |
| 2253 | |
| 2254 | ND_PRINT((ndo,":")); |
| 2255 | |
| 2256 | /* regardless of phase... */ |
| 2257 | if (base->flags & ISAKMP_FLAG_E) { |
| 2258 | /* |
| 2259 | * encrypted, nothing we can do right now. |
| 2260 | * we hope to decrypt the packet in the future... |
| 2261 | */ |
| 2262 | ND_PRINT((ndo," [encrypted %s]", NPSTR(base->np))); |
| 2263 | goto done; |
| 2264 | } |
| 2265 | |
| 2266 | CHECKLEN(p + 1, base->np); |
| 2267 | np = base->np; |
| 2268 | ext = (struct isakmp_gen *)(p + 1); |
| 2269 | ikev1_sub_print(ndo, np, ext, ep, phase, 0, 0, 0); |
| 2270 | } |
| 2271 | |
| 2272 | done: |
| 2273 | if (ndo->ndo_vflag) { |
| 2274 | if (ntohl(base->len) != length) { |
| 2275 | ND_PRINT((ndo," (len mismatch: isakmp %u/ip %u)", |
| 2276 | (u_int32_t)ntohl(base->len), length)); |
| 2277 | } |
| 2278 | } |
| 2279 | } |
| 2280 | |
| 2281 | static const u_char * |
| 2282 | ikev2_sub0_print(netdissect_options *ndo, struct isakmp *base, |
| 2283 | u_char np, int pcount, |
| 2284 | const struct isakmp_gen *ext, const u_char *ep, |
| 2285 | u_int32_t phase, u_int32_t doi, u_int32_t proto, int depth) |
| 2286 | { |
| 2287 | const u_char *cp; |
| 2288 | struct isakmp_gen e; |
| 2289 | u_int item_len; |
| 2290 | |
| 2291 | cp = (u_char *)ext; |
| 2292 | ND_TCHECK(*ext); |
| 2293 | UNALIGNED_MEMCPY(&e, ext, sizeof(e)); |
| 2294 | |
| 2295 | /* |
| 2296 | * Since we can't have a payload length of less than 4 bytes, |
| 2297 | * we need to bail out here if the generic header is nonsensical |
| 2298 | * or truncated, otherwise we could loop forever processing |
| 2299 | * zero-length items or otherwise misdissect the packet. |
| 2300 | */ |
| 2301 | item_len = ntohs(e.len); |
| 2302 | if (item_len <= 4) |
| 2303 | return NULL; |
| 2304 | |
| 2305 | if(np == ISAKMP_NPTYPE_P) { |
| 2306 | cp = ikev2_p_print(ndo, np, pcount, ext, item_len, |
| 2307 | ep, phase, doi, proto, depth); |
| 2308 | } else if(np == ISAKMP_NPTYPE_T) { |
| 2309 | cp = ikev2_t_print(ndo, np, pcount, ext, item_len, |
| 2310 | ep, phase, doi, proto, depth); |
| 2311 | } else if(np == ISAKMP_NPTYPE_v2E) { |
| 2312 | cp = ikev2_e_print(ndo, base, np, ext, item_len, |
| 2313 | ep, phase, doi, proto, depth); |
| 2314 | } else if (NPFUNC(np)) { |
| 2315 | /* |
| 2316 | * XXX - what if item_len is too short, or too long, |
| 2317 | * for this payload type? |
| 2318 | */ |
| 2319 | cp = (*npfunc[np])(ndo, np, /*pcount,*/ ext, item_len, |
| 2320 | ep, phase, doi, proto, depth); |
| 2321 | } else { |
| 2322 | ND_PRINT((ndo,"%s", NPSTR(np))); |
| 2323 | cp += item_len; |
| 2324 | } |
| 2325 | |
| 2326 | return cp; |
| 2327 | trunc: |
| 2328 | ND_PRINT((ndo," [|isakmp]")); |
| 2329 | return NULL; |
| 2330 | } |
| 2331 | |
| 2332 | static const u_char * |
| 2333 | ikev2_sub_print(netdissect_options *ndo, |
| 2334 | struct isakmp *base, |
| 2335 | u_char np, const struct isakmp_gen *ext, const u_char *ep, |
| 2336 | u_int32_t phase, u_int32_t doi, u_int32_t proto, int depth) |
| 2337 | { |
| 2338 | const u_char *cp; |
| 2339 | int i; |
| 2340 | int pcount; |
| 2341 | struct isakmp_gen e; |
| 2342 | |
| 2343 | cp = (const u_char *)ext; |
| 2344 | pcount = 0; |
| 2345 | while (np) { |
| 2346 | pcount++; |
| 2347 | ND_TCHECK(*ext); |
| 2348 | |
| 2349 | UNALIGNED_MEMCPY(&e, ext, sizeof(e)); |
| 2350 | |
| 2351 | ND_TCHECK2(*ext, ntohs(e.len)); |
| 2352 | |
| 2353 | depth++; |
| 2354 | ND_PRINT((ndo,"\n")); |
| 2355 | for (i = 0; i < depth; i++) |
| 2356 | ND_PRINT((ndo," ")); |
| 2357 | ND_PRINT((ndo,"(")); |
| 2358 | cp = ikev2_sub0_print(ndo, base, np, pcount, |
| 2359 | ext, ep, phase, doi, proto, depth); |
| 2360 | ND_PRINT((ndo,")")); |
| 2361 | depth--; |
| 2362 | |
| 2363 | if (cp == NULL) { |
| 2364 | /* Zero-length subitem */ |
| 2365 | return NULL; |
| 2366 | } |
| 2367 | |
| 2368 | np = e.np; |
| 2369 | ext = (struct isakmp_gen *)cp; |
| 2370 | } |
| 2371 | return cp; |
| 2372 | trunc: |
| 2373 | ND_PRINT((ndo," [|%s]", NPSTR(np))); |
| 2374 | return NULL; |
| 2375 | } |
| 2376 | |
| 2377 | static void |
| 2378 | ikev2_print(netdissect_options *ndo, |
| 2379 | const u_char *bp, u_int length, |
| 2380 | const u_char *bp2 _U_, struct isakmp *base) |
| 2381 | { |
| 2382 | const struct isakmp *p; |
| 2383 | const u_char *ep; |
| 2384 | u_char np; |
| 2385 | int phase; |
| 2386 | |
| 2387 | p = (const struct isakmp *)bp; |
| 2388 | ep = ndo->ndo_snapend; |
| 2389 | |
| 2390 | phase = (EXTRACT_32BITS(base->msgid) == 0) ? 1 : 2; |
| 2391 | if (phase == 1) |
| 2392 | ND_PRINT((ndo, " parent_sa")); |
| 2393 | else |
| 2394 | ND_PRINT((ndo, " child_sa ")); |
| 2395 | |
| 2396 | ND_PRINT((ndo, " %s", ETYPESTR(base->etype))); |
| 2397 | if (base->flags) { |
| 2398 | ND_PRINT((ndo, "[%s%s%s]", |
| 2399 | base->flags & ISAKMP_FLAG_I ? "I" : "", |
| 2400 | base->flags & ISAKMP_FLAG_V ? "V" : "", |
| 2401 | base->flags & ISAKMP_FLAG_R ? "R" : "")); |
| 2402 | } |
| 2403 | |
| 2404 | if (ndo->ndo_vflag) { |
| 2405 | const struct isakmp_gen *ext; |
| 2406 | |
| 2407 | ND_PRINT((ndo, ":")); |
| 2408 | |
| 2409 | /* regardless of phase... */ |
| 2410 | if (base->flags & ISAKMP_FLAG_E) { |
| 2411 | /* |
| 2412 | * encrypted, nothing we can do right now. |
| 2413 | * we hope to decrypt the packet in the future... |
| 2414 | */ |
| 2415 | ND_PRINT((ndo, " [encrypted %s]", NPSTR(base->np))); |
| 2416 | goto done; |
| 2417 | } |
| 2418 | |
| 2419 | CHECKLEN(p + 1, base->np) |
| 2420 | |
| 2421 | np = base->np; |
| 2422 | ext = (struct isakmp_gen *)(p + 1); |
| 2423 | ikev2_sub_print(ndo, base, np, ext, ep, phase, 0, 0, 0); |
| 2424 | } |
| 2425 | |
| 2426 | done: |
| 2427 | if (ndo->ndo_vflag) { |
| 2428 | if (ntohl(base->len) != length) { |
| 2429 | ND_PRINT((ndo, " (len mismatch: isakmp %u/ip %u)", |
| 2430 | (u_int32_t)ntohl(base->len), length)); |
| 2431 | } |
| 2432 | } |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2433 | } |
| 2434 | |
| 2435 | void |
| 2436 | isakmp_print(netdissect_options *ndo, |
| 2437 | const u_char *bp, u_int length, |
| 2438 | const u_char *bp2) |
| 2439 | { |
| 2440 | const struct isakmp *p; |
| 2441 | struct isakmp base; |
| 2442 | const u_char *ep; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2443 | int major, minor; |
| 2444 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2445 | #ifdef HAVE_LIBCRYPTO |
| 2446 | /* initialize SAs */ |
| 2447 | if (ndo->ndo_sa_list_head == NULL) { |
| 2448 | if (ndo->ndo_espsecret) |
| 2449 | esp_print_decodesecret(ndo); |
| 2450 | } |
| 2451 | #endif |
| 2452 | |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2453 | p = (const struct isakmp *)bp; |
| 2454 | ep = ndo->ndo_snapend; |
| 2455 | |
| 2456 | if ((struct isakmp *)ep < p + 1) { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2457 | ND_PRINT((ndo,"[|isakmp]")); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2458 | return; |
| 2459 | } |
| 2460 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2461 | UNALIGNED_MEMCPY(&base, p, sizeof(base)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2462 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2463 | ND_PRINT((ndo,"isakmp")); |
| 2464 | major = (base.vers & ISAKMP_VERS_MAJOR) |
| 2465 | >> ISAKMP_VERS_MAJOR_SHIFT; |
| 2466 | minor = (base.vers & ISAKMP_VERS_MINOR) |
| 2467 | >> ISAKMP_VERS_MINOR_SHIFT; |
| 2468 | |
| 2469 | if (ndo->ndo_vflag) { |
| 2470 | ND_PRINT((ndo," %d.%d", major, minor)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2471 | } |
| 2472 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2473 | if (ndo->ndo_vflag) { |
| 2474 | ND_PRINT((ndo," msgid ")); |
| 2475 | hexprint(ndo, (caddr_t)&base.msgid, sizeof(base.msgid)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2476 | } |
| 2477 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2478 | if (1 < ndo->ndo_vflag) { |
| 2479 | ND_PRINT((ndo," cookie ")); |
| 2480 | hexprint(ndo, (caddr_t)&base.i_ck, sizeof(base.i_ck)); |
| 2481 | ND_PRINT((ndo,"->")); |
| 2482 | hexprint(ndo, (caddr_t)&base.r_ck, sizeof(base.r_ck)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2483 | } |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2484 | ND_PRINT((ndo,":")); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2485 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2486 | switch(major) { |
| 2487 | case IKEv1_MAJOR_VERSION: |
| 2488 | ikev1_print(ndo, bp, length, bp2, &base); |
| 2489 | break; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2490 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2491 | case IKEv2_MAJOR_VERSION: |
| 2492 | ikev2_print(ndo, bp, length, bp2, &base); |
| 2493 | break; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2494 | } |
| 2495 | } |
| 2496 | |
| 2497 | void |
| 2498 | isakmp_rfc3948_print(netdissect_options *ndo, |
| 2499 | const u_char *bp, u_int length, |
| 2500 | const u_char *bp2) |
| 2501 | { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2502 | |
| 2503 | if(length == 1 && bp[0]==0xff) { |
| 2504 | ND_PRINT((ndo, "isakmp-nat-keep-alive")); |
| 2505 | return; |
| 2506 | } |
| 2507 | |
| 2508 | if(length < 4) { |
| 2509 | goto trunc; |
| 2510 | } |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2511 | |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2512 | /* |
| 2513 | * see if this is an IKE packet |
| 2514 | */ |
| 2515 | if(bp[0]==0 && bp[1]==0 && bp[2]==0 && bp[3]==0) { |
| 2516 | ND_PRINT((ndo, "NONESP-encap: ")); |
| 2517 | isakmp_print(ndo, bp+4, length-4, bp2); |
| 2518 | return; |
| 2519 | } |
| 2520 | |
| 2521 | /* must be an ESP packet */ |
| 2522 | { |
| 2523 | int nh, enh, padlen; |
| 2524 | int advance; |
| 2525 | |
| 2526 | ND_PRINT((ndo, "UDP-encap: ")); |
| 2527 | |
| 2528 | advance = esp_print(ndo, bp, length, bp2, &enh, &padlen); |
| 2529 | if(advance <= 0) |
| 2530 | return; |
| 2531 | |
| 2532 | bp += advance; |
| 2533 | length -= advance + padlen; |
| 2534 | nh = enh & 0xff; |
| 2535 | |
| 2536 | ip_print_inner(ndo, bp, length, nh, bp2); |
| 2537 | return; |
| 2538 | } |
| 2539 | |
| 2540 | trunc: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2541 | ND_PRINT((ndo,"[|isakmp]")); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2542 | return; |
| 2543 | } |
| 2544 | |
| 2545 | /* |
| 2546 | * Local Variables: |
| 2547 | * c-style: whitesmith |
| 2548 | * c-basic-offset: 8 |
| 2549 | * End: |
| 2550 | */ |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2551 | |
| 2552 | |
| 2553 | |
| 2554 | |