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Diffstat (limited to 'src/lib/libcrypto/dyn_lck.c')
| -rw-r--r-- | src/lib/libcrypto/dyn_lck.c | 428 |
1 files changed, 428 insertions, 0 deletions
diff --git a/src/lib/libcrypto/dyn_lck.c b/src/lib/libcrypto/dyn_lck.c new file mode 100644 index 0000000000..7f82c41264 --- /dev/null +++ b/src/lib/libcrypto/dyn_lck.c | |||
| @@ -0,0 +1,428 @@ | |||
| 1 | /* crypto/cryptlib.c */ | ||
| 2 | /* ==================================================================== | ||
| 3 | * Copyright (c) 1998-2003 The OpenSSL Project. 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 | * | ||
| 9 | * 1. Redistributions of source code must retain the above copyright | ||
| 10 | * notice, this list of conditions and the following disclaimer. | ||
| 11 | * | ||
| 12 | * 2. Redistributions in binary form must reproduce the above copyright | ||
| 13 | * notice, this list of conditions and the following disclaimer in | ||
| 14 | * the documentation and/or other materials provided with the | ||
| 15 | * distribution. | ||
| 16 | * | ||
| 17 | * 3. All advertising materials mentioning features or use of this | ||
| 18 | * software must display the following acknowledgment: | ||
| 19 | * "This product includes software developed by the OpenSSL Project | ||
| 20 | * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" | ||
| 21 | * | ||
| 22 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | ||
| 23 | * endorse or promote products derived from this software without | ||
| 24 | * prior written permission. For written permission, please contact | ||
| 25 | * openssl-core@openssl.org. | ||
| 26 | * | ||
| 27 | * 5. Products derived from this software may not be called "OpenSSL" | ||
| 28 | * nor may "OpenSSL" appear in their names without prior written | ||
| 29 | * permission of the OpenSSL Project. | ||
| 30 | * | ||
| 31 | * 6. Redistributions of any form whatsoever must retain the following | ||
| 32 | * acknowledgment: | ||
| 33 | * "This product includes software developed by the OpenSSL Project | ||
| 34 | * for use in the OpenSSL Toolkit (http://www.openssl.org/)" | ||
| 35 | * | ||
| 36 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | ||
| 37 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| 38 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | ||
| 39 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | ||
| 40 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| 41 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | ||
| 42 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | ||
| 43 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
| 44 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | ||
| 45 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
| 46 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | ||
| 47 | * OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| 48 | * ==================================================================== | ||
| 49 | * | ||
| 50 | * This product includes cryptographic software written by Eric Young | ||
| 51 | * (eay@cryptsoft.com). This product includes software written by Tim | ||
| 52 | * Hudson (tjh@cryptsoft.com). | ||
| 53 | * | ||
| 54 | */ | ||
| 55 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | ||
| 56 | * All rights reserved. | ||
| 57 | * | ||
| 58 | * This package is an SSL implementation written | ||
| 59 | * by Eric Young (eay@cryptsoft.com). | ||
| 60 | * The implementation was written so as to conform with Netscapes SSL. | ||
| 61 | * | ||
| 62 | * This library is free for commercial and non-commercial use as long as | ||
| 63 | * the following conditions are aheared to. The following conditions | ||
| 64 | * apply to all code found in this distribution, be it the RC4, RSA, | ||
| 65 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation | ||
| 66 | * included with this distribution is covered by the same copyright terms | ||
| 67 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). | ||
| 68 | * | ||
| 69 | * Copyright remains Eric Young's, and as such any Copyright notices in | ||
| 70 | * the code are not to be removed. | ||
| 71 | * If this package is used in a product, Eric Young should be given attribution | ||
| 72 | * as the author of the parts of the library used. | ||
| 73 | * This can be in the form of a textual message at program startup or | ||
| 74 | * in documentation (online or textual) provided with the package. | ||
| 75 | * | ||
| 76 | * Redistribution and use in source and binary forms, with or without | ||
| 77 | * modification, are permitted provided that the following conditions | ||
| 78 | * are met: | ||
| 79 | * 1. Redistributions of source code must retain the copyright | ||
| 80 | * notice, this list of conditions and the following disclaimer. | ||
| 81 | * 2. Redistributions in binary form must reproduce the above copyright | ||
| 82 | * notice, this list of conditions and the following disclaimer in the | ||
| 83 | * documentation and/or other materials provided with the distribution. | ||
| 84 | * 3. All advertising materials mentioning features or use of this software | ||
| 85 | * must display the following acknowledgement: | ||
| 86 | * "This product includes cryptographic software written by | ||
| 87 | * Eric Young (eay@cryptsoft.com)" | ||
| 88 | * The word 'cryptographic' can be left out if the rouines from the library | ||
| 89 | * being used are not cryptographic related :-). | ||
| 90 | * 4. If you include any Windows specific code (or a derivative thereof) from | ||
| 91 | * the apps directory (application code) you must include an acknowledgement: | ||
| 92 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | ||
| 93 | * | ||
| 94 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND | ||
| 95 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| 96 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
| 97 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | ||
| 98 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
| 99 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
| 100 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
| 101 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
| 102 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||
| 103 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | ||
| 104 | * SUCH DAMAGE. | ||
| 105 | * | ||
| 106 | * The licence and distribution terms for any publically available version or | ||
| 107 | * derivative of this code cannot be changed. i.e. this code cannot simply be | ||
| 108 | * copied and put under another distribution licence | ||
| 109 | * [including the GNU Public Licence.] | ||
| 110 | */ | ||
| 111 | /* ==================================================================== | ||
| 112 | * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. | ||
| 113 | * ECDH support in OpenSSL originally developed by | ||
| 114 | * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. | ||
| 115 | */ | ||
| 116 | |||
| 117 | #include "cryptlib.h" | ||
| 118 | #include <openssl/safestack.h> | ||
| 119 | |||
| 120 | #if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN16) | ||
| 121 | static double SSLeay_MSVC5_hack=0.0; /* and for VC1.5 */ | ||
| 122 | #endif | ||
| 123 | |||
| 124 | DECLARE_STACK_OF(CRYPTO_dynlock) | ||
| 125 | IMPLEMENT_STACK_OF(CRYPTO_dynlock) | ||
| 126 | |||
| 127 | /* real #defines in crypto.h, keep these upto date */ | ||
| 128 | static const char* const lock_names[CRYPTO_NUM_LOCKS] = | ||
| 129 | { | ||
| 130 | "<<ERROR>>", | ||
| 131 | "err", | ||
| 132 | "ex_data", | ||
| 133 | "x509", | ||
| 134 | "x509_info", | ||
| 135 | "x509_pkey", | ||
| 136 | "x509_crl", | ||
| 137 | "x509_req", | ||
| 138 | "dsa", | ||
| 139 | "rsa", | ||
| 140 | "evp_pkey", | ||
| 141 | "x509_store", | ||
| 142 | "ssl_ctx", | ||
| 143 | "ssl_cert", | ||
| 144 | "ssl_session", | ||
| 145 | "ssl_sess_cert", | ||
| 146 | "ssl", | ||
| 147 | "ssl_method", | ||
| 148 | "rand", | ||
| 149 | "rand2", | ||
| 150 | "debug_malloc", | ||
| 151 | "BIO", | ||
| 152 | "gethostbyname", | ||
| 153 | "getservbyname", | ||
| 154 | "readdir", | ||
| 155 | "RSA_blinding", | ||
| 156 | "dh", | ||
| 157 | "debug_malloc2", | ||
| 158 | "dso", | ||
| 159 | "dynlock", | ||
| 160 | "engine", | ||
| 161 | "ui", | ||
| 162 | "ecdsa", | ||
| 163 | "ec", | ||
| 164 | "ecdh", | ||
| 165 | "bn", | ||
| 166 | "ec_pre_comp", | ||
| 167 | "store", | ||
| 168 | "comp", | ||
| 169 | #ifndef OPENSSL_FIPS | ||
| 170 | # if CRYPTO_NUM_LOCKS != 39 | ||
| 171 | # error "Inconsistency between crypto.h and cryptlib.c" | ||
| 172 | # endif | ||
| 173 | #else | ||
| 174 | "fips", | ||
| 175 | "fips2", | ||
| 176 | # if CRYPTO_NUM_LOCKS != 41 | ||
| 177 | # error "Inconsistency between crypto.h and cryptlib.c" | ||
| 178 | # endif | ||
| 179 | #endif | ||
| 180 | }; | ||
| 181 | |||
| 182 | /* This is for applications to allocate new type names in the non-dynamic | ||
| 183 | array of lock names. These are numbered with positive numbers. */ | ||
| 184 | static STACK *app_locks=NULL; | ||
| 185 | |||
| 186 | /* For applications that want a more dynamic way of handling threads, the | ||
| 187 | following stack is used. These are externally numbered with negative | ||
| 188 | numbers. */ | ||
| 189 | static STACK_OF(CRYPTO_dynlock) *dyn_locks=NULL; | ||
| 190 | |||
| 191 | |||
| 192 | static struct CRYPTO_dynlock_value *(MS_FAR *dynlock_create_callback) | ||
| 193 | (const char *file,int line)=NULL; | ||
| 194 | static void (MS_FAR *dynlock_lock_callback)(int mode, | ||
| 195 | struct CRYPTO_dynlock_value *l, const char *file,int line)=NULL; | ||
| 196 | static void (MS_FAR *dynlock_destroy_callback)(struct CRYPTO_dynlock_value *l, | ||
| 197 | const char *file,int line)=NULL; | ||
| 198 | |||
| 199 | int CRYPTO_get_new_lockid(char *name) | ||
| 200 | { | ||
| 201 | char *str; | ||
| 202 | int i; | ||
| 203 | |||
| 204 | #if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN16) | ||
| 205 | /* A hack to make Visual C++ 5.0 work correctly when linking as | ||
| 206 | * a DLL using /MT. Without this, the application cannot use | ||
| 207 | * and floating point printf's. | ||
| 208 | * It also seems to be needed for Visual C 1.5 (win16) */ | ||
| 209 | SSLeay_MSVC5_hack=(double)name[0]*(double)name[1]; | ||
| 210 | #endif | ||
| 211 | |||
| 212 | if ((app_locks == NULL) && ((app_locks=sk_new_null()) == NULL)) | ||
| 213 | { | ||
| 214 | CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_LOCKID,ERR_R_MALLOC_FAILURE); | ||
| 215 | return(0); | ||
| 216 | } | ||
| 217 | if ((str=BUF_strdup(name)) == NULL) | ||
| 218 | { | ||
| 219 | CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_LOCKID,ERR_R_MALLOC_FAILURE); | ||
| 220 | return(0); | ||
| 221 | } | ||
| 222 | i=sk_push(app_locks,str); | ||
| 223 | if (!i) | ||
| 224 | OPENSSL_free(str); | ||
| 225 | else | ||
| 226 | i+=CRYPTO_NUM_LOCKS; /* gap of one :-) */ | ||
| 227 | return(i); | ||
| 228 | } | ||
| 229 | |||
| 230 | int CRYPTO_get_new_dynlockid(void) | ||
| 231 | { | ||
| 232 | int i = 0; | ||
| 233 | CRYPTO_dynlock *pointer = NULL; | ||
| 234 | |||
| 235 | if (dynlock_create_callback == NULL) | ||
| 236 | { | ||
| 237 | CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,CRYPTO_R_NO_DYNLOCK_CREATE_CALLBACK); | ||
| 238 | return(0); | ||
| 239 | } | ||
| 240 | CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK); | ||
| 241 | if ((dyn_locks == NULL) | ||
| 242 | && ((dyn_locks=sk_CRYPTO_dynlock_new_null()) == NULL)) | ||
| 243 | { | ||
| 244 | CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); | ||
| 245 | CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,ERR_R_MALLOC_FAILURE); | ||
| 246 | return(0); | ||
| 247 | } | ||
| 248 | CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); | ||
| 249 | |||
| 250 | pointer = (CRYPTO_dynlock *)OPENSSL_malloc(sizeof(CRYPTO_dynlock)); | ||
| 251 | if (pointer == NULL) | ||
| 252 | { | ||
| 253 | CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,ERR_R_MALLOC_FAILURE); | ||
| 254 | return(0); | ||
| 255 | } | ||
| 256 | pointer->references = 1; | ||
| 257 | pointer->data = dynlock_create_callback(__FILE__,__LINE__); | ||
| 258 | if (pointer->data == NULL) | ||
| 259 | { | ||
| 260 | OPENSSL_free(pointer); | ||
| 261 | CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,ERR_R_MALLOC_FAILURE); | ||
| 262 | return(0); | ||
| 263 | } | ||
| 264 | |||
| 265 | CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK); | ||
| 266 | /* First, try to find an existing empty slot */ | ||
| 267 | i=sk_CRYPTO_dynlock_find(dyn_locks,NULL); | ||
| 268 | /* If there was none, push, thereby creating a new one */ | ||
| 269 | if (i == -1) | ||
| 270 | /* Since sk_push() returns the number of items on the | ||
| 271 | stack, not the location of the pushed item, we need | ||
| 272 | to transform the returned number into a position, | ||
| 273 | by decreasing it. */ | ||
| 274 | i=sk_CRYPTO_dynlock_push(dyn_locks,pointer) - 1; | ||
| 275 | else | ||
| 276 | /* If we found a place with a NULL pointer, put our pointer | ||
| 277 | in it. */ | ||
| 278 | (void)sk_CRYPTO_dynlock_set(dyn_locks,i,pointer); | ||
| 279 | CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); | ||
| 280 | |||
| 281 | if (i == -1) | ||
| 282 | { | ||
| 283 | dynlock_destroy_callback(pointer->data,__FILE__,__LINE__); | ||
| 284 | OPENSSL_free(pointer); | ||
| 285 | } | ||
| 286 | else | ||
| 287 | i += 1; /* to avoid 0 */ | ||
| 288 | return -i; | ||
| 289 | } | ||
| 290 | |||
| 291 | void CRYPTO_destroy_dynlockid(int i) | ||
| 292 | { | ||
| 293 | CRYPTO_dynlock *pointer = NULL; | ||
| 294 | if (i) | ||
| 295 | i = -i-1; | ||
| 296 | if (dynlock_destroy_callback == NULL) | ||
| 297 | return; | ||
| 298 | |||
| 299 | CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK); | ||
| 300 | |||
| 301 | if (dyn_locks == NULL || i >= sk_CRYPTO_dynlock_num(dyn_locks)) | ||
| 302 | { | ||
| 303 | CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); | ||
| 304 | return; | ||
| 305 | } | ||
| 306 | pointer = sk_CRYPTO_dynlock_value(dyn_locks, i); | ||
| 307 | if (pointer != NULL) | ||
| 308 | { | ||
| 309 | --pointer->references; | ||
| 310 | #ifdef REF_CHECK | ||
| 311 | if (pointer->references < 0) | ||
| 312 | { | ||
| 313 | fprintf(stderr,"CRYPTO_destroy_dynlockid, bad reference count\n"); | ||
| 314 | abort(); | ||
| 315 | } | ||
| 316 | else | ||
| 317 | #endif | ||
| 318 | if (pointer->references <= 0) | ||
| 319 | { | ||
| 320 | (void)sk_CRYPTO_dynlock_set(dyn_locks, i, NULL); | ||
| 321 | } | ||
| 322 | else | ||
| 323 | pointer = NULL; | ||
| 324 | } | ||
| 325 | CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); | ||
| 326 | |||
| 327 | if (pointer) | ||
| 328 | { | ||
| 329 | dynlock_destroy_callback(pointer->data,__FILE__,__LINE__); | ||
| 330 | OPENSSL_free(pointer); | ||
| 331 | } | ||
| 332 | } | ||
| 333 | |||
| 334 | struct CRYPTO_dynlock_value *CRYPTO_get_dynlock_value(int i) | ||
| 335 | { | ||
| 336 | CRYPTO_dynlock *pointer = NULL; | ||
| 337 | if (i) | ||
| 338 | i = -i-1; | ||
| 339 | |||
| 340 | CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK); | ||
| 341 | |||
| 342 | if (dyn_locks != NULL && i < sk_CRYPTO_dynlock_num(dyn_locks)) | ||
| 343 | pointer = sk_CRYPTO_dynlock_value(dyn_locks, i); | ||
| 344 | if (pointer) | ||
| 345 | pointer->references++; | ||
| 346 | |||
| 347 | CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); | ||
| 348 | |||
| 349 | if (pointer) | ||
| 350 | return pointer->data; | ||
| 351 | return NULL; | ||
| 352 | } | ||
| 353 | |||
| 354 | struct CRYPTO_dynlock_value *(*CRYPTO_get_dynlock_create_callback(void)) | ||
| 355 | (const char *file,int line) | ||
| 356 | { | ||
| 357 | return(dynlock_create_callback); | ||
| 358 | } | ||
| 359 | |||
| 360 | void (*CRYPTO_get_dynlock_lock_callback(void))(int mode, | ||
| 361 | struct CRYPTO_dynlock_value *l, const char *file,int line) | ||
| 362 | { | ||
| 363 | return(dynlock_lock_callback); | ||
| 364 | } | ||
| 365 | |||
| 366 | void (*CRYPTO_get_dynlock_destroy_callback(void)) | ||
| 367 | (struct CRYPTO_dynlock_value *l, const char *file,int line) | ||
| 368 | { | ||
| 369 | return(dynlock_destroy_callback); | ||
| 370 | } | ||
| 371 | |||
| 372 | void CRYPTO_set_dynlock_create_callback(struct CRYPTO_dynlock_value *(*func) | ||
| 373 | (const char *file, int line)) | ||
| 374 | { | ||
| 375 | dynlock_create_callback=func; | ||
| 376 | } | ||
| 377 | |||
| 378 | static void do_dynlock(int mode, int type, const char *file, int line) | ||
| 379 | { | ||
| 380 | if (dynlock_lock_callback != NULL) | ||
| 381 | { | ||
| 382 | struct CRYPTO_dynlock_value *pointer | ||
| 383 | = CRYPTO_get_dynlock_value(type); | ||
| 384 | |||
| 385 | OPENSSL_assert(pointer != NULL); | ||
| 386 | |||
| 387 | dynlock_lock_callback(mode, pointer, file, line); | ||
| 388 | |||
| 389 | CRYPTO_destroy_dynlockid(type); | ||
| 390 | } | ||
| 391 | } | ||
| 392 | |||
| 393 | void CRYPTO_set_dynlock_lock_callback(void (*func)(int mode, | ||
| 394 | struct CRYPTO_dynlock_value *l, const char *file, int line)) | ||
| 395 | { | ||
| 396 | /* Set callback so CRYPTO_lock() can now handle dynamic locks. | ||
| 397 | * This is OK because at this point and application shouldn't be using | ||
| 398 | * OpenSSL from multiple threads because it is setting up the locking | ||
| 399 | * callbacks. | ||
| 400 | */ | ||
| 401 | static int done = 0; | ||
| 402 | if (!done) | ||
| 403 | { | ||
| 404 | int_CRYPTO_set_do_dynlock_callback(do_dynlock); | ||
| 405 | done = 1; | ||
| 406 | } | ||
| 407 | |||
| 408 | dynlock_lock_callback=func; | ||
| 409 | } | ||
| 410 | |||
| 411 | void CRYPTO_set_dynlock_destroy_callback(void (*func) | ||
| 412 | (struct CRYPTO_dynlock_value *l, const char *file, int line)) | ||
| 413 | { | ||
| 414 | dynlock_destroy_callback=func; | ||
| 415 | } | ||
| 416 | |||
| 417 | const char *CRYPTO_get_lock_name(int type) | ||
| 418 | { | ||
| 419 | if (type < 0) | ||
| 420 | return("dynamic"); | ||
| 421 | else if (type < CRYPTO_NUM_LOCKS) | ||
| 422 | return(lock_names[type]); | ||
| 423 | else if (type-CRYPTO_NUM_LOCKS > sk_num(app_locks)) | ||
| 424 | return("ERROR"); | ||
| 425 | else | ||
| 426 | return(sk_value(app_locks,type-CRYPTO_NUM_LOCKS)); | ||
| 427 | } | ||
| 428 | |||
