1 /* 2 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 3 * Use is subject to license terms. 4 */ 5 6 #pragma ident "%Z%%M% %I% %E% SMI" 7 8 /* common.c - Functions that are common to server and clinet 9 * Rob Siemborski 10 * Tim Martin 11 * $Id: common.c,v 1.92 2003/04/16 19:36:00 rjs3 Exp $ 12 */ 13 /* 14 * Copyright (c) 1998-2003 Carnegie Mellon University. All rights reserved. 15 * 16 * Redistribution and use in source and binary forms, with or without 17 * modification, are permitted provided that the following conditions 18 * are met: 19 * 20 * 1. Redistributions of source code must retain the above copyright 21 * notice, this list of conditions and the following disclaimer. 22 * 23 * 2. Redistributions in binary form must reproduce the above copyright 24 * notice, this list of conditions and the following disclaimer in 25 * the documentation and/or other materials provided with the 26 * distribution. 27 * 28 * 3. The name "Carnegie Mellon University" must not be used to 29 * endorse or promote products derived from this software without 30 * prior written permission. For permission or any other legal 31 * details, please contact 32 * Office of Technology Transfer 33 * Carnegie Mellon University 34 * 5000 Forbes Avenue 35 * Pittsburgh, PA 15213-3890 36 * (412) 268-4387, fax: (412) 268-7395 37 * tech-transfer@andrew.cmu.edu 38 * 39 * 4. Redistributions of any form whatsoever must retain the following 40 * acknowledgment: 41 * "This product includes software developed by Computing Services 42 * at Carnegie Mellon University (http://www.cmu.edu/computing/)." 43 * 44 * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO 45 * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 46 * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE 47 * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 48 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN 49 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING 50 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 51 */ 52 53 #include <config.h> 54 #include <stdio.h> 55 #include <string.h> 56 #include <stdlib.h> 57 #include <limits.h> 58 #ifdef HAVE_SYSLOG 59 #include <syslog.h> 60 #endif 61 #include <stdarg.h> 62 #include <ctype.h> 63 64 #include <sasl.h> 65 #include <saslutil.h> 66 #include <saslplug.h> 67 #include "saslint.h" 68 69 #ifdef _SUN_SDK_ 70 #include "md5_private.h" 71 #include "hmac-md5.h" 72 #include "plugin_common.h" 73 #endif 74 75 76 #ifdef WIN32 77 /* need to handle the fact that errno has been defined as a function 78 in a dll, not an extern int */ 79 # ifdef errno 80 # undef errno 81 # endif /* errno */ 82 #endif /* WIN32 */ 83 #ifdef HAVE_UNISTD_H 84 #include <unistd.h> 85 #endif 86 87 static int _sasl_getpath(void *context __attribute__((unused)), const char **path); 88 89 #ifdef _SUN_SDK_ 90 DEFINE_STATIC_MUTEX(global_mutex); 91 DEFINE_STATIC_MUTEX(malloc_global_mutex); 92 static void _sasl_dispose_context(_sasl_global_context_t *ctx); 93 static int _sasl_getconf(void *context, const char **conf); 94 95 #ifdef _INTEGRATED_SOLARIS_ 96 static pthread_key_t errstring_key = PTHREAD_ONCE_KEY_NP; 97 #endif /* _INTEGRATED_SOLARIS_ */ 98 #else 99 static const char build_ident[] = "$Build: libsasl " PACKAGE "-" VERSION " $"; 100 101 /* It turns out to be conveinent to have a shared sasl_utils_t */ 102 LIBSASL_VAR const sasl_utils_t *sasl_global_utils = NULL; 103 104 /* Should be a null-terminated array that lists the available mechanisms */ 105 static char **global_mech_list = NULL; 106 107 void *free_mutex = NULL; 108 109 int (*_sasl_client_cleanup_hook)(void) = NULL; 110 int (*_sasl_server_cleanup_hook)(void) = NULL; 111 int (*_sasl_client_idle_hook)(sasl_conn_t *conn) = NULL; 112 int (*_sasl_server_idle_hook)(sasl_conn_t *conn) = NULL; 113 114 sasl_allocation_utils_t _sasl_allocation_utils={ 115 (sasl_malloc_t *) &malloc, 116 (sasl_calloc_t *) &calloc, 117 (sasl_realloc_t *) &realloc, 118 (sasl_free_t *) &free 119 }; 120 #endif /* _SUN_SDK_ */ 121 122 #ifdef USE_PTHREADS 123 static void *sasl_mutex_alloc(void) 124 { 125 pthread_mutex_t *mutex = 126 (pthread_mutex_t *)malloc(sizeof (pthread_mutex_t)); 127 128 if (mutex != NULL) { 129 if (pthread_mutex_init(mutex, NULL) != 0) { 130 free(mutex); 131 mutex = NULL; 132 } 133 } 134 return (mutex); 135 } 136 137 static int sasl_mutex_lock(void *mutex) 138 { 139 int ret = SASL_BADPARAM; 140 141 if (mutex != NULL) 142 ret = pthread_mutex_lock((pthread_mutex_t *)mutex); 143 144 return ret; 145 } 146 147 static int sasl_mutex_unlock(void *mutex) 148 { 149 int ret = SASL_BADPARAM; 150 151 if (mutex != NULL) 152 ret = pthread_mutex_unlock((pthread_mutex_t *)mutex); 153 154 return ret; 155 } 156 157 static void sasl_mutex_free(void *mutex __attribute__((unused))) 158 { 159 if (mutex != NULL) { 160 pthread_mutex_destroy((pthread_mutex_t *)mutex); 161 free(mutex); 162 } 163 } 164 #else 165 /* Intenal mutex functions do as little as possible (no thread protection) */ 166 static void *sasl_mutex_alloc(void) 167 { 168 return (void *)0x1; 169 } 170 171 static int sasl_mutex_lock(void *mutex __attribute__((unused))) 172 { 173 return SASL_OK; 174 } 175 176 static int sasl_mutex_unlock(void *mutex __attribute__((unused))) 177 { 178 return SASL_OK; 179 } 180 181 static void sasl_mutex_free(void *mutex __attribute__((unused))) 182 { 183 return; 184 } 185 #endif /* USE_PTHREADS */ 186 187 #ifndef _SUN_SDK_ 188 sasl_mutex_utils_t _sasl_mutex_utils={ 189 &sasl_mutex_alloc, 190 &sasl_mutex_lock, 191 &sasl_mutex_unlock, 192 &sasl_mutex_free 193 }; 194 #endif /* !_SUN_SDK_ */ 195 196 void sasl_set_mutex(sasl_mutex_alloc_t *n, sasl_mutex_lock_t *l, 197 sasl_mutex_unlock_t *u, sasl_mutex_free_t *d) 198 { 199 #ifdef _SUN_SDK_ 200 _sasl_global_context_t *gctx = _sasl_gbl_ctx(); 201 202 gctx->sasl_mutex_utils.alloc=n; 203 gctx->sasl_mutex_utils.lock=l; 204 gctx->sasl_mutex_utils.unlock=u; 205 gctx->sasl_mutex_utils.free=d; 206 #else 207 _sasl_mutex_utils.alloc=n; 208 _sasl_mutex_utils.lock=l; 209 _sasl_mutex_utils.unlock=u; 210 _sasl_mutex_utils.free=d; 211 #endif 212 } 213 214 /* copy a string to malloced memory */ 215 #ifdef _SUN_SDK_ 216 int __sasl_strdup(const _sasl_global_context_t *gctx, const char *in, 217 char **out, size_t *outlen) 218 #else 219 int _sasl_strdup(const char *in, char **out, size_t *outlen) 220 #endif /* _SUN_SDK_ */ 221 { 222 size_t len = strlen(in); 223 if (outlen) *outlen = len; 224 *out=sasl_ALLOC(len + 1); 225 if (! *out) return SASL_NOMEM; 226 strcpy((char *) *out, in); 227 return SASL_OK; 228 } 229 230 /* adds a string to the buffer; reallocing if need be */ 231 #ifdef _SUN_SDK_ 232 int __sasl_add_string(const _sasl_global_context_t *gctx, char **out, 233 size_t *alloclen, size_t *outlen, 234 const char *add) 235 #else 236 int _sasl_add_string(char **out, size_t *alloclen, 237 size_t *outlen, const char *add) 238 #endif /* _SUN_SDK_ */ 239 { 240 size_t addlen; 241 242 if (add==NULL) add = "(null)"; 243 244 addlen=strlen(add); /* only compute once */ 245 if (_buf_alloc(out, alloclen, (*outlen)+addlen)!=SASL_OK) 246 return SASL_NOMEM; 247 248 strncpy(*out + *outlen, add, addlen); 249 *outlen += addlen; 250 251 return SASL_OK; 252 } 253 254 /* return the version of the cyrus sasl library as compiled, 255 * using 32 bits: high byte is major version, second byte is minor version, 256 * low 16 bits are step # */ 257 void sasl_version(const char **implementation, int *version) 258 { 259 #ifdef _SUN_SDK_ 260 const char *implementation_string = "Sun SASL"; 261 #else 262 const char *implementation_string = "Cyrus SASL"; 263 #endif /* _SUN_SDK_ */ 264 if(implementation) *implementation = implementation_string; 265 if(version) *version = (SASL_VERSION_MAJOR << 24) | 266 (SASL_VERSION_MINOR << 16) | 267 (SASL_VERSION_STEP); 268 } 269 270 /* security-encode a regular string. Mostly a wrapper for sasl_encodev */ 271 /* output is only valid until next call to sasl_encode or sasl_encodev */ 272 int sasl_encode(sasl_conn_t *conn, const char *input, 273 unsigned inputlen, 274 const char **output, unsigned *outputlen) 275 { 276 int result; 277 struct iovec tmp; 278 279 if(!conn) return SASL_BADPARAM; 280 if(!input || !inputlen || !output || !outputlen) 281 PARAMERROR(conn); 282 283 /* maxoutbuf checking is done in sasl_encodev */ 284 285 /* Note: We are casting a const pointer here, but it's okay 286 * because we believe people downstream of us are well-behaved, and the 287 * alternative is an absolute mess, performance-wise. */ 288 tmp.iov_base = (void *)input; 289 tmp.iov_len = inputlen; 290 291 result = sasl_encodev(conn, &tmp, 1, output, outputlen); 292 293 RETURN(conn, result); 294 } 295 296 /* security-encode an iovec */ 297 /* output is only valid until next call to sasl_encode or sasl_encodev */ 298 int sasl_encodev(sasl_conn_t *conn, 299 const struct iovec *invec, unsigned numiov, 300 const char **output, unsigned *outputlen) 301 { 302 #ifdef _SUN_SDK_ 303 int result = SASL_FAIL; 304 #else 305 int result; 306 #endif /* _SUN_SDK_ */ 307 unsigned i; 308 size_t total_size = 0; 309 310 /* EXPORT DELETE START */ 311 if (!conn) return SASL_BADPARAM; 312 if (! invec || ! output || ! outputlen || numiov < 1) 313 PARAMERROR(conn); 314 315 if(!conn->props.maxbufsize) { 316 #ifdef _SUN_SDK_ 317 _sasl_log(conn, SASL_LOG_ERR, 318 "called sasl_encode[v] with application that does not support security layers"); 319 #else 320 sasl_seterror(conn, 0, 321 "called sasl_encode[v] with application that does not support security layers"); 322 #endif /* _SUN_SDK_ */ 323 return SASL_TOOWEAK; 324 } 325 326 /* This might be better to check on a per-plugin basis, but I think 327 * it's cleaner and more effective here. It also encourages plugins 328 * to be honest about what they accept */ 329 330 for(i=0; i<numiov;i++) { 331 #ifdef _SUN_SDK_ 332 if (invec[i].iov_base == NULL) 333 PARAMERROR(conn); 334 #endif /* _SUN_SDK_ */ 335 total_size += invec[i].iov_len; 336 } 337 if(total_size > conn->oparams.maxoutbuf) 338 PARAMERROR(conn); 339 340 if(conn->oparams.encode == NULL) { 341 #ifdef _SUN_SDK_ 342 result = _iovec_to_buf(conn->gctx, invec, numiov, &conn->encode_buf); 343 #else 344 result = _iovec_to_buf(invec, numiov, &conn->encode_buf); 345 #endif /* _SUN_SDK_ */ 346 if(result != SASL_OK) INTERROR(conn, result); 347 348 *output = conn->encode_buf->data; 349 *outputlen = conn->encode_buf->curlen; 350 351 /* CRYPT DELETE START */ 352 #ifdef _INTEGRATED_SOLARIS_ 353 } else if (!conn->sun_reg) { 354 INTERROR(conn, SASL_FAIL); 355 #endif /* _INTEGRATED_SOLARIS_ */ 356 /* CRYPT DELETE END */ 357 } else { 358 result = conn->oparams.encode(conn->context, invec, numiov, 359 output, outputlen); 360 } 361 /* EXPORT DELETE END */ 362 363 RETURN(conn, result); 364 } 365 366 /* output is only valid until next call to sasl_decode */ 367 int sasl_decode(sasl_conn_t *conn, 368 const char *input, unsigned inputlen, 369 const char **output, unsigned *outputlen) 370 { 371 int result; 372 /* EXPORT DELETE START */ 373 #ifdef _SUN_SDK_ 374 const _sasl_global_context_t *gctx; 375 #endif /* _SUN_SDK_ */ 376 377 if(!conn) return SASL_BADPARAM; 378 if(!input || !output || !outputlen) 379 PARAMERROR(conn); 380 381 #ifdef _SUN_SDK_ 382 gctx = conn->gctx; 383 #endif /* _SUN_SDK_ */ 384 385 if(!conn->props.maxbufsize) { 386 #ifdef _SUN_SDK_ 387 _sasl_log(conn, SASL_LOG_ERR, 388 "called sasl_decode with application that does not support security layers"); 389 #else 390 sasl_seterror(conn, 0, 391 "called sasl_decode with application that does not support security layers"); 392 #endif /* _SUN_SDK_ */ 393 RETURN(conn, SASL_TOOWEAK); 394 } 395 396 if(conn->oparams.decode == NULL) 397 { 398 /* Since we know how long the output is maximally, we can 399 * just allocate it to begin with, and never need another 400 * allocation! */ 401 402 /* However, if they pass us more than they actually can take, 403 * we cannot help them... */ 404 if(inputlen > conn->props.maxbufsize) { 405 #ifdef _SUN_SDK_ 406 _sasl_log(conn, SASL_LOG_ERR, 407 "input too large for default sasl_decode"); 408 #else 409 sasl_seterror(conn, 0, 410 "input too large for default sasl_decode"); 411 #endif /* _SUN_SDK_ */ 412 RETURN(conn,SASL_BUFOVER); 413 } 414 415 if(!conn->decode_buf) 416 conn->decode_buf = sasl_ALLOC(conn->props.maxbufsize + 1); 417 if(!conn->decode_buf) 418 MEMERROR(conn); 419 420 memcpy(conn->decode_buf, input, inputlen); 421 conn->decode_buf[inputlen] = '\0'; 422 *output = conn->decode_buf; 423 *outputlen = inputlen; 424 425 return SASL_OK; 426 /* CRYPT DELETE START */ 427 #ifdef _INTEGRATED_SOLARIS_ 428 } else if (!conn->sun_reg) { 429 INTERROR(conn, SASL_FAIL); 430 #endif /* _INTEGRATED_SOLARIS_ */ 431 /* CRYPT DELETE END */ 432 } else { 433 result = conn->oparams.decode(conn->context, input, inputlen, 434 output, outputlen); 435 436 /* NULL an empty buffer (for misbehaved applications) */ 437 if (*outputlen == 0) *output = NULL; 438 439 RETURN(conn, result); 440 } 441 442 /* EXPORT DELETE END */ 443 #ifdef _SUN_SDK_ 444 return SASL_FAIL; 445 #else 446 INTERROR(conn, SASL_FAIL); 447 #endif /* _SUN_SDK_ */ 448 } 449 450 451 void 452 sasl_set_alloc(sasl_malloc_t *m, 453 sasl_calloc_t *c, 454 sasl_realloc_t *r, 455 sasl_free_t *f) 456 { 457 #ifdef _SUN_SDK_ 458 _sasl_global_context_t *gctx = _sasl_gbl_ctx(); 459 460 LOCK_MUTEX(&malloc_global_mutex); 461 gctx->sasl_allocation_utils.malloc=m; 462 gctx->sasl_allocation_utils.calloc=c; 463 gctx->sasl_allocation_utils.realloc=r; 464 gctx->sasl_allocation_utils.free=f; 465 UNLOCK_MUTEX(&malloc_global_mutex); 466 #else 467 _sasl_allocation_utils.malloc=m; 468 _sasl_allocation_utils.calloc=c; 469 _sasl_allocation_utils.realloc=r; 470 _sasl_allocation_utils.free=f; 471 #endif /* _SUN_SDK_ */ 472 } 473 474 void sasl_done(void) 475 { 476 #ifdef _SUN_SDK_ 477 _sasl_dispose_context(_sasl_gbl_ctx()); 478 #else 479 if (_sasl_server_cleanup_hook && _sasl_server_cleanup_hook() == SASL_OK) { 480 _sasl_server_idle_hook = NULL; 481 _sasl_server_cleanup_hook = NULL; 482 } 483 484 if (_sasl_client_cleanup_hook && _sasl_client_cleanup_hook() == SASL_OK) { 485 _sasl_client_idle_hook = NULL; 486 _sasl_client_cleanup_hook = NULL; 487 } 488 489 if(_sasl_server_cleanup_hook || _sasl_client_cleanup_hook) 490 return; 491 492 493 _sasl_canonuser_free(); 494 _sasl_done_with_plugins(); 495 496 #ifdef _SUN_SDK_ 497 sasl_config_free(); 498 #endif /* _SUN_SDK_ */ 499 500 sasl_MUTEX_FREE(free_mutex); 501 free_mutex = NULL; 502 503 _sasl_free_utils(&sasl_global_utils); 504 505 if(global_mech_list) sasl_FREE(global_mech_list); 506 global_mech_list = NULL; 507 #endif /* _SUN_SDK_ */ 508 } 509 510 /* fills in the base sasl_conn_t info */ 511 int _sasl_conn_init(sasl_conn_t *conn, 512 const char *service, 513 unsigned int flags, 514 enum Sasl_conn_type type, 515 int (*idle_hook)(sasl_conn_t *conn), 516 const char *serverFQDN, 517 const char *iplocalport, 518 const char *ipremoteport, 519 const sasl_callback_t *callbacks, 520 const sasl_global_callbacks_t *global_callbacks) { 521 int result = SASL_OK; 522 #ifdef _SUN_SDK_ 523 const _sasl_global_context_t *gctx = conn->gctx; 524 #endif /* _SUN_SDK_ */ 525 526 conn->type = type; 527 528 result = _sasl_strdup(service, &conn->service, NULL); 529 if (result != SASL_OK) 530 MEMERROR(conn); 531 532 memset(&conn->oparams, 0, sizeof(sasl_out_params_t)); 533 memset(&conn->external, 0, sizeof(_sasl_external_properties_t)); 534 535 conn->flags = flags; 536 537 result = sasl_setprop(conn, SASL_IPLOCALPORT, iplocalport); 538 if(result != SASL_OK) 539 RETURN(conn, result); 540 541 result = sasl_setprop(conn, SASL_IPREMOTEPORT, ipremoteport); 542 if(result != SASL_OK) 543 RETURN(conn, result); 544 545 conn->encode_buf = NULL; 546 conn->context = NULL; 547 #ifndef _SUN_SDK_ 548 conn->secret = NULL; 549 #endif /* !_SUN_SDK_ */ 550 conn->idle_hook = idle_hook; 551 conn->callbacks = callbacks; 552 conn->global_callbacks = global_callbacks; 553 554 memset(&conn->props, 0, sizeof(conn->props)); 555 556 /* Start this buffer out as an empty string */ 557 conn->error_code = SASL_OK; 558 conn->errdetail_buf = conn->error_buf = NULL; 559 conn->errdetail_buf_len = conn->error_buf_len = 150; 560 561 result = _buf_alloc(&conn->error_buf, &conn->error_buf_len, 150); 562 if(result != SASL_OK) MEMERROR(conn); 563 result = _buf_alloc(&conn->errdetail_buf, &conn->errdetail_buf_len, 150); 564 if(result != SASL_OK) MEMERROR(conn); 565 566 conn->error_buf[0] = '\0'; 567 conn->errdetail_buf[0] = '\0'; 568 569 conn->decode_buf = NULL; 570 571 if(serverFQDN) { 572 result = _sasl_strdup(serverFQDN, &conn->serverFQDN, NULL); 573 } else if (conn->type == SASL_CONN_SERVER) { 574 /* We can fake it because we *are* the server */ 575 char name[MAXHOSTNAMELEN]; 576 memset(name, 0, sizeof(name)); 577 gethostname(name, MAXHOSTNAMELEN); 578 579 result = _sasl_strdup(name, &conn->serverFQDN, NULL); 580 } else { 581 conn->serverFQDN = NULL; 582 } 583 584 585 if(result != SASL_OK) MEMERROR( conn ); 586 587 #ifdef _SUN_SDK_ 588 return (SASL_OK); 589 #else 590 RETURN(conn, SASL_OK); 591 #endif /* _SUN_SDK_ */ 592 } 593 594 #ifdef _SUN_SDK_ 595 int _sasl_common_init(_sasl_global_context_t *gctx, 596 sasl_global_callbacks_t *global_callbacks, 597 int server) 598 { 599 int result; 600 sasl_utils_t *sasl_global_utils; 601 602 sasl_global_utils = (sasl_utils_t *)gctx->sasl_canonusr_global_utils; 603 604 if(!sasl_global_utils) { 605 sasl_global_utils = _sasl_alloc_utils(gctx, NULL, global_callbacks); 606 if(sasl_global_utils == NULL) return SASL_NOMEM; 607 gctx->sasl_canonusr_global_utils = sasl_global_utils; 608 } 609 610 if (server) { 611 sasl_global_utils = (sasl_utils_t *)gctx->sasl_server_global_utils; 612 613 if(!sasl_global_utils) { 614 sasl_global_utils = _sasl_alloc_utils(gctx, NULL, global_callbacks); 615 if(sasl_global_utils == NULL) return SASL_NOMEM; 616 gctx->sasl_server_global_utils = sasl_global_utils; 617 } 618 } 619 620 /* Init the canon_user plugin */ 621 result = _sasl_canonuser_add_plugin(gctx, "INTERNAL", 622 internal_canonuser_init); 623 if(result != SASL_OK) return result; 624 625 if (!gctx->free_mutex) 626 gctx->free_mutex = sasl_MUTEX_ALLOC(); 627 if (!gctx->free_mutex) return SASL_FAIL; 628 629 return SASL_OK; 630 } 631 #else 632 int _sasl_common_init(sasl_global_callbacks_t *global_callbacks) 633 { 634 int result; 635 636 /* Setup the global utilities */ 637 if(!sasl_global_utils) { 638 sasl_global_utils = _sasl_alloc_utils(NULL, global_callbacks); 639 if(sasl_global_utils == NULL) return SASL_NOMEM; 640 } 641 642 /* Init the canon_user plugin */ 643 result = sasl_canonuser_add_plugin("INTERNAL", internal_canonuser_init); 644 if(result != SASL_OK) return result; 645 646 if (!free_mutex) 647 free_mutex = sasl_MUTEX_ALLOC(); 648 if (!free_mutex) return SASL_FAIL; 649 650 return SASL_OK; 651 } 652 #endif /* _SUN_SDK_ */ 653 654 /* dispose connection state, sets it to NULL 655 * checks for pointer to NULL 656 */ 657 void sasl_dispose(sasl_conn_t **pconn) 658 { 659 int result; 660 #ifdef _SUN_SDK_ 661 _sasl_global_context_t *gctx; 662 void *free_mutex; 663 #endif /* _SUN_SDK_ */ 664 665 if (! pconn) return; 666 if (! *pconn) return; 667 668 /* serialize disposes. this is necessary because we can't 669 dispose of conn->mutex if someone else is locked on it */ 670 #ifdef _SUN_SDK_ 671 gctx = (*pconn)->gctx; 672 free_mutex = gctx->free_mutex; 673 #endif /* _SUN_SDK_ */ 674 result = sasl_MUTEX_LOCK(free_mutex); 675 if (result!=SASL_OK) return; 676 677 /* *pconn might have become NULL by now */ 678 #ifdef _SUN_SDK_ 679 if (! (*pconn)) { 680 sasl_MUTEX_UNLOCK(free_mutex); 681 return; 682 } 683 #else 684 if (! (*pconn)) return; 685 #endif /* _SUN_SDK_ */ 686 687 (*pconn)->destroy_conn(*pconn); 688 sasl_FREE(*pconn); 689 *pconn=NULL; 690 691 sasl_MUTEX_UNLOCK(free_mutex); 692 } 693 694 void _sasl_conn_dispose(sasl_conn_t *conn) { 695 #ifdef _SUN_SDK_ 696 const _sasl_global_context_t *gctx = conn->gctx; 697 #endif /* _SUN_SDK_ */ 698 699 if (conn->serverFQDN) 700 sasl_FREE(conn->serverFQDN); 701 702 if (conn->external.auth_id) 703 sasl_FREE(conn->external.auth_id); 704 705 if(conn->encode_buf) { 706 if(conn->encode_buf->data) sasl_FREE(conn->encode_buf->data); 707 sasl_FREE(conn->encode_buf); 708 } 709 710 if(conn->error_buf) 711 sasl_FREE(conn->error_buf); 712 713 if(conn->errdetail_buf) 714 sasl_FREE(conn->errdetail_buf); 715 716 if(conn->decode_buf) 717 sasl_FREE(conn->decode_buf); 718 719 if(conn->mechlist_buf) 720 sasl_FREE(conn->mechlist_buf); 721 722 if(conn->service) 723 sasl_FREE(conn->service); 724 725 /* oparams sub-members should be freed by the plugin, in so much 726 * as they were allocated by the plugin */ 727 } 728 729 730 /* get property from SASL connection state 731 * propnum -- property number 732 * pvalue -- pointer to value 733 * returns: 734 * SASL_OK -- no error 735 * SASL_NOTDONE -- property not available yet 736 * SASL_BADPARAM -- bad property number 737 */ 738 int sasl_getprop(sasl_conn_t *conn, int propnum, const void **pvalue) 739 { 740 int result = SASL_OK; 741 sasl_getopt_t *getopt; 742 void *context; 743 744 if (! conn) return SASL_BADPARAM; 745 if (! pvalue) PARAMERROR(conn); 746 747 switch(propnum) 748 { 749 case SASL_SSF: 750 /* EXPORT DELETE START */ 751 /* CRYPT DELETE START */ 752 #ifdef _INTEGRATED_SOLARIS_ 753 if (!conn->sun_reg) 754 conn->oparams.mech_ssf = 0; 755 #endif /* _INTEGRATED_SOLARIS_ */ 756 /* CRYPT DELETE END */ 757 /* EXPORT DELETE END */ 758 *(sasl_ssf_t **)pvalue= &conn->oparams.mech_ssf; 759 break; 760 case SASL_MAXOUTBUF: 761 *(unsigned **)pvalue = &conn->oparams.maxoutbuf; 762 break; 763 case SASL_GETOPTCTX: 764 result = _sasl_getcallback(conn, SASL_CB_GETOPT, &getopt, &context); 765 if(result != SASL_OK) break; 766 767 *(void **)pvalue = context; 768 break; 769 case SASL_CALLBACK: 770 *(const sasl_callback_t **)pvalue = conn->callbacks; 771 break; 772 case SASL_IPLOCALPORT: 773 if(conn->got_ip_local) 774 *(const char **)pvalue = conn->iplocalport; 775 else { 776 *(const char **)pvalue = NULL; 777 result = SASL_NOTDONE; 778 } 779 break; 780 case SASL_IPREMOTEPORT: 781 if(conn->got_ip_remote) 782 *(const char **)pvalue = conn->ipremoteport; 783 else { 784 *(const char **)pvalue = NULL; 785 result = SASL_NOTDONE; 786 } 787 break; 788 case SASL_USERNAME: 789 if(! conn->oparams.user) 790 result = SASL_NOTDONE; 791 else 792 *((const char **)pvalue) = conn->oparams.user; 793 break; 794 case SASL_AUTHUSER: 795 if(! conn->oparams.authid) 796 result = SASL_NOTDONE; 797 else 798 *((const char **)pvalue) = conn->oparams.authid; 799 break; 800 case SASL_SERVERFQDN: 801 *((const char **)pvalue) = conn->serverFQDN; 802 break; 803 case SASL_DEFUSERREALM: 804 if(conn->type != SASL_CONN_SERVER) result = SASL_BADPROT; 805 else 806 *((const char **)pvalue) = ((sasl_server_conn_t *)conn)->user_realm; 807 break; 808 case SASL_SERVICE: 809 *((const char **)pvalue) = conn->service; 810 break; 811 case SASL_AUTHSOURCE: /* name of plugin (not name of mech) */ 812 if(conn->type == SASL_CONN_CLIENT) { 813 if(!((sasl_client_conn_t *)conn)->mech) { 814 result = SASL_NOTDONE; 815 break; 816 } 817 *((const char **)pvalue) = 818 ((sasl_client_conn_t *)conn)->mech->plugname; 819 } else if (conn->type == SASL_CONN_SERVER) { 820 if(!((sasl_server_conn_t *)conn)->mech) { 821 result = SASL_NOTDONE; 822 break; 823 } 824 *((const char **)pvalue) = 825 ((sasl_server_conn_t *)conn)->mech->plugname; 826 } else { 827 result = SASL_BADPARAM; 828 } 829 break; 830 case SASL_MECHNAME: /* name of mech */ 831 if(conn->type == SASL_CONN_CLIENT) { 832 if(!((sasl_client_conn_t *)conn)->mech) { 833 result = SASL_NOTDONE; 834 break; 835 } 836 *((const char **)pvalue) = 837 ((sasl_client_conn_t *)conn)->mech->plug->mech_name; 838 } else if (conn->type == SASL_CONN_SERVER) { 839 if(!((sasl_server_conn_t *)conn)->mech) { 840 result = SASL_NOTDONE; 841 break; 842 } 843 *((const char **)pvalue) = 844 ((sasl_server_conn_t *)conn)->mech->plug->mech_name; 845 } else { 846 result = SASL_BADPARAM; 847 } 848 849 if(!(*pvalue) && result == SASL_OK) result = SASL_NOTDONE; 850 break; 851 case SASL_PLUGERR: 852 *((const char **)pvalue) = conn->error_buf; 853 break; 854 case SASL_SSF_EXTERNAL: 855 *((const sasl_ssf_t **)pvalue) = &conn->external.ssf; 856 break; 857 case SASL_AUTH_EXTERNAL: 858 *((const char **)pvalue) = conn->external.auth_id; 859 break; 860 case SASL_SEC_PROPS: 861 *((const sasl_security_properties_t **)pvalue) = &conn->props; 862 break; 863 default: 864 result = SASL_BADPARAM; 865 } 866 867 if(result == SASL_BADPARAM) { 868 PARAMERROR(conn); 869 } else if(result == SASL_NOTDONE) { 870 #ifdef _SUN_SDK_ 871 _sasl_log(conn, SASL_LOG_NONE, 872 "Information that was requested is not yet available."); 873 #else 874 sasl_seterror(conn, SASL_NOLOG, 875 "Information that was requested is not yet available."); 876 #endif /* _SUN_SDK_ */ 877 RETURN(conn, result); 878 } else if(result != SASL_OK) { 879 INTERROR(conn, result); 880 } else 881 RETURN(conn, result); 882 #ifdef _SUN_SDK_ 883 return SASL_OK; 884 #endif /* _SUN_SDK_ */ 885 } 886 887 /* set property in SASL connection state 888 * returns: 889 * SASL_OK -- value set 890 * SASL_BADPARAM -- invalid property or value 891 */ 892 int sasl_setprop(sasl_conn_t *conn, int propnum, const void *value) 893 { 894 int result = SASL_OK; 895 char *str; 896 #ifdef _SUN_SDK_ 897 const _sasl_global_context_t *gctx; 898 #endif /* _SUN_SDK_ */ 899 900 /* make sure the sasl context is valid */ 901 if (!conn) 902 return SASL_BADPARAM; 903 904 #ifdef _SUN_SDK_ 905 gctx = conn->gctx; 906 #endif /* _SUN_SDK_ */ 907 908 switch(propnum) 909 { 910 case SASL_SSF_EXTERNAL: 911 conn->external.ssf = *((sasl_ssf_t *)value); 912 if(conn->type == SASL_CONN_SERVER) { 913 ((sasl_server_conn_t*)conn)->sparams->external_ssf = 914 conn->external.ssf; 915 } else { 916 ((sasl_client_conn_t*)conn)->cparams->external_ssf = 917 conn->external.ssf; 918 } 919 break; 920 921 case SASL_AUTH_EXTERNAL: 922 if(value && strlen(value)) { 923 result = _sasl_strdup(value, &str, NULL); 924 if(result != SASL_OK) MEMERROR(conn); 925 } else { 926 str = NULL; 927 } 928 929 if(conn->external.auth_id) 930 sasl_FREE(conn->external.auth_id); 931 932 conn->external.auth_id = str; 933 934 break; 935 936 case SASL_DEFUSERREALM: 937 if(conn->type != SASL_CONN_SERVER) { 938 #ifdef _SUN_SDK_ 939 _sasl_log(conn, SASL_LOG_WARN, 940 "Tried to set realm on non-server connection"); 941 #else 942 sasl_seterror(conn, 0, "Tried to set realm on non-server connection"); 943 #endif /* _SUN_SDK_ */ 944 result = SASL_BADPROT; 945 break; 946 } 947 948 if(value && strlen(value)) { 949 result = _sasl_strdup(value, &str, NULL); 950 if(result != SASL_OK) MEMERROR(conn); 951 } else { 952 PARAMERROR(conn); 953 } 954 955 if(((sasl_server_conn_t *)conn)->user_realm) 956 sasl_FREE(((sasl_server_conn_t *)conn)->user_realm); 957 958 ((sasl_server_conn_t *)conn)->user_realm = str; 959 ((sasl_server_conn_t *)conn)->sparams->user_realm = str; 960 961 break; 962 963 case SASL_SEC_PROPS: 964 { 965 sasl_security_properties_t *props = (sasl_security_properties_t *)value; 966 967 if(props->maxbufsize == 0 && props->min_ssf != 0) { 968 #ifdef _SUN_SDK_ 969 _sasl_log(conn, SASL_LOG_ERR, 970 "Attempt to disable security layers (maxoutbuf == 0) with min_ssf > 0"); 971 #else 972 sasl_seterror(conn, 0, 973 "Attempt to disable security layers (maxoutbuf == 0) with min_ssf > 0"); 974 #endif /* _SUN_SDK_ */ 975 RETURN(conn, SASL_TOOWEAK); 976 } 977 978 conn->props = *props; 979 980 if(conn->type == SASL_CONN_SERVER) { 981 ((sasl_server_conn_t*)conn)->sparams->props = *props; 982 } else { 983 ((sasl_client_conn_t*)conn)->cparams->props = *props; 984 } 985 986 break; 987 } 988 989 case SASL_IPREMOTEPORT: 990 { 991 const char *ipremoteport = (const char *)value; 992 if(!value) { 993 conn->got_ip_remote = 0; 994 #ifdef _SUN_SDK_ 995 } else if (strlen(ipremoteport) >= sizeof (conn->ipremoteport)) { 996 RETURN(conn, SASL_BADPARAM); 997 #endif /* _SUN_SDK_ */ 998 } else if (_sasl_ipfromstring(ipremoteport, NULL, 0) 999 != SASL_OK) { 1000 #ifdef _SUN_SDK_ 1001 _sasl_log(conn, SASL_LOG_ERR, "Bad IPREMOTEPORT value"); 1002 #else 1003 sasl_seterror(conn, 0, "Bad IPREMOTEPORT value"); 1004 #endif /* _SUN_SDK_ */ 1005 RETURN(conn, SASL_BADPARAM); 1006 } else { 1007 strcpy(conn->ipremoteport, ipremoteport); 1008 conn->got_ip_remote = 1; 1009 } 1010 1011 if(conn->got_ip_remote) { 1012 if(conn->type == SASL_CONN_CLIENT) { 1013 ((sasl_client_conn_t *)conn)->cparams->ipremoteport 1014 = conn->ipremoteport; 1015 ((sasl_client_conn_t *)conn)->cparams->ipremlen = 1016 strlen(conn->ipremoteport); 1017 } else if (conn->type == SASL_CONN_SERVER) { 1018 ((sasl_server_conn_t *)conn)->sparams->ipremoteport 1019 = conn->ipremoteport; 1020 ((sasl_server_conn_t *)conn)->sparams->ipremlen = 1021 strlen(conn->ipremoteport); 1022 } 1023 } else { 1024 if(conn->type == SASL_CONN_CLIENT) { 1025 ((sasl_client_conn_t *)conn)->cparams->ipremoteport 1026 = NULL; 1027 ((sasl_client_conn_t *)conn)->cparams->ipremlen = 0; 1028 } else if (conn->type == SASL_CONN_SERVER) { 1029 ((sasl_server_conn_t *)conn)->sparams->ipremoteport 1030 = NULL; 1031 ((sasl_server_conn_t *)conn)->sparams->ipremlen = 0; 1032 } 1033 } 1034 1035 break; 1036 } 1037 1038 case SASL_IPLOCALPORT: 1039 { 1040 const char *iplocalport = (const char *)value; 1041 if(!value) { 1042 conn->got_ip_local = 0; 1043 #ifdef _SUN_SDK_ 1044 } else if (strlen(iplocalport) >= sizeof (conn->iplocalport)) { 1045 RETURN(conn, SASL_BADPARAM); 1046 #endif /* _SUN_SDK_ */ 1047 } else if (_sasl_ipfromstring(iplocalport, NULL, 0) 1048 != SASL_OK) { 1049 #ifdef _SUN_SDK_ 1050 _sasl_log(conn, SASL_LOG_ERR, "Bad IPLOCALPORT value"); 1051 #else 1052 sasl_seterror(conn, 0, "Bad IPLOCALPORT value"); 1053 #endif /* _SUN_SDK_ */ 1054 RETURN(conn, SASL_BADPARAM); 1055 } else { 1056 strcpy(conn->iplocalport, iplocalport); 1057 conn->got_ip_local = 1; 1058 } 1059 1060 if(conn->got_ip_local) { 1061 if(conn->type == SASL_CONN_CLIENT) { 1062 ((sasl_client_conn_t *)conn)->cparams->iplocalport 1063 = conn->iplocalport; 1064 ((sasl_client_conn_t *)conn)->cparams->iploclen 1065 = strlen(conn->iplocalport); 1066 } else if (conn->type == SASL_CONN_SERVER) { 1067 ((sasl_server_conn_t *)conn)->sparams->iplocalport 1068 = conn->iplocalport; 1069 ((sasl_server_conn_t *)conn)->sparams->iploclen 1070 = strlen(conn->iplocalport); 1071 } 1072 } else { 1073 if(conn->type == SASL_CONN_CLIENT) { 1074 ((sasl_client_conn_t *)conn)->cparams->iplocalport 1075 = NULL; 1076 ((sasl_client_conn_t *)conn)->cparams->iploclen = 0; 1077 } else if (conn->type == SASL_CONN_SERVER) { 1078 ((sasl_server_conn_t *)conn)->sparams->iplocalport 1079 = NULL; 1080 ((sasl_server_conn_t *)conn)->sparams->iploclen = 0; 1081 } 1082 } 1083 break; 1084 } 1085 1086 default: 1087 #ifdef _SUN_SDK_ 1088 _sasl_log(conn, SASL_LOG_WARN, "Unknown parameter type"); 1089 #else 1090 sasl_seterror(conn, 0, "Unknown parameter type"); 1091 #endif /* _SUN_SDK_ */ 1092 result = SASL_BADPARAM; 1093 } 1094 1095 RETURN(conn, result); 1096 } 1097 1098 /* this is apparently no longer a user function */ 1099 static int sasl_usererr(int saslerr) 1100 { 1101 /* Hide the difference in a username failure and a password failure */ 1102 if (saslerr == SASL_NOUSER) 1103 return SASL_BADAUTH; 1104 1105 /* otherwise return the error given; no transform necessary */ 1106 return saslerr; 1107 } 1108 1109 #ifdef _INTEGRATED_SOLARIS_ 1110 static void free_err_tsd(void *key) 1111 { 1112 free(key); 1113 } 1114 #endif /* _INTEGRATED_SOLARIS_ */ 1115 1116 const char *sasl_errstring(int saslerr, 1117 #ifdef _SUN_SDK_ 1118 const char *langlist, 1119 #else 1120 const char *langlist __attribute__((unused)), 1121 #endif /* _SUN_SDK_ */ 1122 const char **outlang) 1123 { 1124 #ifdef _INTEGRATED_SOLARIS_ 1125 const char *s; 1126 const char *s_locale; 1127 char *s_utf8; 1128 void *tsd; 1129 1130 if (outlang) *outlang="i-default"; 1131 #else 1132 if (outlang) *outlang="en-us"; 1133 #endif /* _INTEGRATED_SOLARIS_ */ 1134 1135 #ifdef _INTEGRATED_SOLARIS_ 1136 switch(saslerr) 1137 { 1138 case SASL_CONTINUE: s = gettext("another step is needed in authentication"); 1139 break; 1140 case SASL_OK: s = gettext("successful result"); 1141 break; 1142 case SASL_FAIL: s = gettext("generic failure"); 1143 break; 1144 case SASL_NOMEM: s = gettext("no memory available"); 1145 break; 1146 case SASL_BUFOVER: s = gettext("overflowed buffer"); 1147 break; 1148 case SASL_NOMECH: s = gettext("no mechanism available"); 1149 break; 1150 case SASL_BADPROT: s = gettext("bad protocol / cancel"); 1151 break; 1152 case SASL_NOTDONE: s = gettext("can't request info until later in exchange"); 1153 break; 1154 case SASL_BADPARAM: s = gettext("invalid parameter supplied"); 1155 break; 1156 case SASL_TRYAGAIN: s = gettext("transient failure (e.g., weak key)"); 1157 break; 1158 case SASL_BADMAC: s = gettext("integrity check failed"); 1159 break; 1160 case SASL_NOTINIT: s = gettext("SASL library not initialized"); 1161 break; 1162 /* -- client only codes -- */ 1163 case SASL_INTERACT: s = gettext("needs user interaction"); 1164 break; 1165 case SASL_BADSERV: s = gettext("server failed mutual authentication step"); 1166 break; 1167 case SASL_WRONGMECH: s = gettext("mechanism doesn't support requested feature"); 1168 break; 1169 /* -- server only codes -- */ 1170 case SASL_BADAUTH: s = gettext("authentication failure"); 1171 break; 1172 case SASL_NOAUTHZ: s = gettext("authorization failure"); 1173 break; 1174 case SASL_TOOWEAK: s = gettext("mechanism too weak for this user"); 1175 break; 1176 case SASL_ENCRYPT: s = gettext("encryption needed to use mechanism"); 1177 break; 1178 case SASL_TRANS: s = gettext("One time use of a plaintext password will enable requested mechanism for user"); 1179 break; 1180 case SASL_EXPIRED: s = gettext("passphrase expired, has to be reset"); 1181 break; 1182 case SASL_DISABLED: s = gettext("account disabled"); 1183 break; 1184 case SASL_NOUSER: s = gettext("user not found"); 1185 break; 1186 case SASL_BADVERS: s = gettext("version mismatch with plug-in"); 1187 break; 1188 case SASL_UNAVAIL: s = gettext("remote authentication server unavailable"); 1189 break; 1190 case SASL_NOVERIFY: s = gettext("user exists, but no verifier for user"); 1191 break; 1192 case SASL_PWLOCK: s = gettext("passphrase locked"); 1193 break; 1194 case SASL_NOCHANGE: s = gettext("requested change was not needed"); 1195 break; 1196 case SASL_WEAKPASS: s = gettext("passphrase is too weak for security policy"); 1197 break; 1198 case SASL_NOUSERPASS: s = gettext("user supplied passwords are not permitted"); 1199 1200 break; 1201 default: s = gettext("undefined error!"); 1202 break; 1203 } 1204 1205 if (use_locale(langlist, 0)) 1206 s_locale = dgettext(TEXT_DOMAIN, s); 1207 else 1208 s_locale = s; 1209 1210 if (s == s_locale) 1211 return s; 1212 1213 s_utf8 = local_to_utf(NULL, s_locale); 1214 if (s_utf8 == NULL) 1215 return s; 1216 1217 if (pthread_key_create_once_np(&errstring_key, free_err_tsd) != 0) { 1218 free(s_utf8); 1219 return s; 1220 } 1221 1222 tsd = pthread_getspecific(errstring_key); 1223 if (tsd != NULL) 1224 free(tsd); 1225 pthread_setspecific(errstring_key, s_utf8); 1226 1227 if (outlang) *outlang="*"; 1228 return s_utf8; 1229 #else 1230 switch(saslerr) 1231 { 1232 case SASL_CONTINUE: return "another step is needed in authentication"; 1233 case SASL_OK: return "successful result"; 1234 case SASL_FAIL: return "generic failure"; 1235 case SASL_NOMEM: return "no memory available"; 1236 case SASL_BUFOVER: return "overflowed buffer"; 1237 case SASL_NOMECH: return "no mechanism available"; 1238 case SASL_BADPROT: return "bad protocol / cancel"; 1239 case SASL_NOTDONE: return "can't request info until later in exchange"; 1240 case SASL_BADPARAM: return "invalid parameter supplied"; 1241 case SASL_TRYAGAIN: return "transient failure (e.g., weak key)"; 1242 case SASL_BADMAC: return "integrity check failed"; 1243 case SASL_NOTINIT: return "SASL library not initialized"; 1244 /* -- client only codes -- */ 1245 case SASL_INTERACT: return "needs user interaction"; 1246 case SASL_BADSERV: return "server failed mutual authentication step"; 1247 case SASL_WRONGMECH: return "mechanism doesn't support requested feature"; 1248 /* -- server only codes -- */ 1249 case SASL_BADAUTH: return "authentication failure"; 1250 case SASL_NOAUTHZ: return "authorization failure"; 1251 case SASL_TOOWEAK: return "mechanism too weak for this user"; 1252 case SASL_ENCRYPT: return "encryption needed to use mechanism"; 1253 case SASL_TRANS: return "One time use of a plaintext password will enable requested mechanism for user"; 1254 case SASL_EXPIRED: return "passphrase expired, has to be reset"; 1255 case SASL_DISABLED: return "account disabled"; 1256 case SASL_NOUSER: return "user not found"; 1257 case SASL_BADVERS: return "version mismatch with plug-in"; 1258 case SASL_UNAVAIL: return "remote authentication server unavailable"; 1259 case SASL_NOVERIFY: return "user exists, but no verifier for user"; 1260 case SASL_PWLOCK: return "passphrase locked"; 1261 case SASL_NOCHANGE: return "requested change was not needed"; 1262 case SASL_WEAKPASS: return "passphrase is too weak for security policy"; 1263 case SASL_NOUSERPASS: return "user supplied passwords are not permitted"; 1264 1265 default: return "undefined error!"; 1266 } 1267 #endif /* _INTEGRATED_SOLARIS_ */ 1268 1269 } 1270 1271 /* Return the sanitized error detail about the last error that occured for 1272 * a connection */ 1273 const char *sasl_errdetail(sasl_conn_t *conn) 1274 { 1275 unsigned need_len; 1276 const char *errstr; 1277 char leader[128]; 1278 #ifdef _SUN_SDK_ 1279 int ret; 1280 const _sasl_global_context_t *gctx; 1281 1282 if(!conn) return "invalid parameter supplied"; 1283 1284 gctx = conn->gctx; 1285 #else 1286 if(!conn) return NULL; 1287 #endif /* _SUN_SDK_ */ 1288 1289 errstr = sasl_errstring(conn->error_code, NULL, NULL); 1290 snprintf(leader,128,"SASL(%d): %s: ", 1291 sasl_usererr(conn->error_code), errstr); 1292 1293 need_len = strlen(leader) + strlen(conn->error_buf) + 12; 1294 #ifdef _SUN_SDK_ 1295 ret = _buf_alloc(&conn->errdetail_buf, &conn->errdetail_buf_len, need_len); 1296 if (ret != SASL_OK) 1297 return "no memory available"; 1298 #else 1299 _buf_alloc(&conn->errdetail_buf, &conn->errdetail_buf_len, need_len); 1300 #endif /* _SUN_SDK_ */ 1301 1302 snprintf(conn->errdetail_buf, need_len, "%s%s", leader, conn->error_buf); 1303 1304 return conn->errdetail_buf; 1305 } 1306 1307 /* EXPORT DELETE START */ 1308 /* CRYPT DELETE START */ 1309 #ifdef _INTEGRATED_SOLARIS_ 1310 DEFINE_STATIC_MUTEX(reg_mutex); 1311 typedef struct reg_list { 1312 struct reg_list *next; 1313 void *mech; 1314 } reg_list_t; 1315 1316 static reg_list_t *reg_list_base = NULL; 1317 1318 int _is_sun_reg(void *mech) 1319 { 1320 reg_list_t *r, *prev; 1321 int is_reg = 0; 1322 1323 LOCK_MUTEX(®_mutex); 1324 for (r = reg_list_base; r != NULL; r = r->next) { 1325 if (r->mech != mech) { 1326 prev = r; 1327 continue; 1328 } 1329 is_reg = 1; 1330 if (r == reg_list_base) { 1331 reg_list_base = reg_list_base->next; 1332 } else { 1333 prev->next = r->next; 1334 } 1335 free(r); 1336 break; 1337 } 1338 UNLOCK_MUTEX(®_mutex); 1339 return (is_reg); 1340 } 1341 1342 static void 1343 _register_plugin(void *arg) 1344 { 1345 reg_list_t *r = (reg_list_t *)calloc(1, sizeof (reg_list_t)); 1346 1347 if (r != NULL) { 1348 r->mech = arg; 1349 LOCK_MUTEX(®_mutex); 1350 r->next = reg_list_base; 1351 reg_list_base = r; 1352 UNLOCK_MUTEX(®_mutex); 1353 } 1354 } 1355 #endif /* _INTEGRATED_SOLARIS_ */ 1356 /* CRYPT DELETE END */ 1357 /* EXPORT DELETE END */ 1358 1359 /* Note that this needs the global callbacks, so if you don't give getcallbacks 1360 * a sasl_conn_t, you're going to need to pass it yourself (or else we couldn't 1361 * have client and server at the same time */ 1362 static int _sasl_global_getopt(void *context, 1363 const char *plugin_name, 1364 const char *option, 1365 const char ** result, 1366 unsigned *len) 1367 { 1368 const sasl_global_callbacks_t * global_callbacks; 1369 const sasl_callback_t *callback; 1370 #ifdef _SUN_SDK_ 1371 _sasl_global_context_t *gctx; 1372 #endif /* _SUN_SDK_ */ 1373 1374 global_callbacks = (const sasl_global_callbacks_t *) context; 1375 1376 #ifdef _SUN_SDK_ 1377 /* EXPORT DELETE START */ 1378 /* CRYPT DELETE START */ 1379 #ifdef _INTEGRATED_SOLARIS_ 1380 if (strcmp("reg_sun_plug", option) == 0) { 1381 *result = (const char *)_register_plugin; 1382 *len = 0; 1383 return (SASL_OK); 1384 } 1385 #endif /* _INTEGRATED_SOLARIS_ */ 1386 /* CRYPT DELETE END */ 1387 /* EXPORT DELETE END */ 1388 1389 if (global_callbacks) 1390 gctx = global_callbacks->gctx; 1391 else 1392 gctx = _sasl_gbl_ctx(); 1393 #endif /* _SUN_SDK_ */ 1394 1395 if (global_callbacks && global_callbacks->callbacks) { 1396 for (callback = global_callbacks->callbacks; 1397 callback->id != SASL_CB_LIST_END; 1398 callback++) { 1399 if (callback->id == SASL_CB_GETOPT) { 1400 if (!callback->proc) return SASL_FAIL; 1401 if (((sasl_getopt_t *)(callback->proc))(callback->context, 1402 plugin_name, 1403 option, 1404 result, 1405 len) 1406 == SASL_OK) 1407 return SASL_OK; 1408 } 1409 } 1410 } 1411 1412 /* look it up in our configuration file */ 1413 #ifdef _SUN_SDK_ 1414 *result = sasl_config_getstring(gctx, option, NULL); 1415 #else 1416 *result = sasl_config_getstring(option, NULL); 1417 #endif /* _SUN_SDK_ */ 1418 if (*result != NULL) { 1419 if (len) { *len = strlen(*result); } 1420 return SASL_OK; 1421 } 1422 1423 return SASL_FAIL; 1424 } 1425 1426 static int 1427 _sasl_conn_getopt(void *context, 1428 const char *plugin_name, 1429 const char *option, 1430 const char ** result, 1431 unsigned *len) 1432 { 1433 sasl_conn_t * conn; 1434 const sasl_callback_t *callback; 1435 1436 if (! context) 1437 return SASL_BADPARAM; 1438 1439 conn = (sasl_conn_t *) context; 1440 1441 if (conn->callbacks) 1442 for (callback = conn->callbacks; 1443 callback->id != SASL_CB_LIST_END; 1444 callback++) 1445 if (callback->id == SASL_CB_GETOPT 1446 && (((sasl_getopt_t *)(callback->proc))(callback->context, 1447 plugin_name, 1448 option, 1449 result, 1450 len) 1451 == SASL_OK)) 1452 return SASL_OK; 1453 1454 /* If we made it here, we didn't find an appropriate callback 1455 * in the connection's callback list, or the callback we did 1456 * find didn't return SASL_OK. So we attempt to use the 1457 * global callback for this connection... */ 1458 return _sasl_global_getopt((void *)conn->global_callbacks, 1459 plugin_name, 1460 option, 1461 result, 1462 len); 1463 } 1464 1465 #ifdef HAVE_SYSLOG 1466 /* this is the default logging */ 1467 static int _sasl_syslog(void *context __attribute__((unused)), 1468 int priority, 1469 const char *message) 1470 { 1471 int syslog_priority; 1472 1473 /* set syslog priority */ 1474 switch(priority) { 1475 case SASL_LOG_NONE: 1476 return SASL_OK; 1477 break; 1478 case SASL_LOG_ERR: 1479 syslog_priority = LOG_ERR; 1480 break; 1481 case SASL_LOG_WARN: 1482 syslog_priority = LOG_WARNING; 1483 break; 1484 case SASL_LOG_NOTE: 1485 case SASL_LOG_FAIL: 1486 syslog_priority = LOG_NOTICE; 1487 break; 1488 case SASL_LOG_PASS: 1489 case SASL_LOG_TRACE: 1490 case SASL_LOG_DEBUG: 1491 default: 1492 syslog_priority = LOG_DEBUG; 1493 break; 1494 } 1495 1496 /* do the syslog call. do not need to call openlog */ 1497 syslog(syslog_priority | LOG_AUTH, "%s", message); 1498 1499 return SASL_OK; 1500 } 1501 #endif /* HAVE_SYSLOG */ 1502 1503 static int 1504 _sasl_getsimple(void *context, 1505 int id, 1506 const char ** result, 1507 size_t *len) 1508 { 1509 const char *userid; 1510 #ifndef _SUN_SDK_ 1511 sasl_conn_t *conn; 1512 #endif /* _SUN_SDK_ */ 1513 1514 if (! context || ! result) return SASL_BADPARAM; 1515 1516 #ifndef _SUN_SDK_ 1517 conn = (sasl_conn_t *)context; 1518 #endif /* _SUN_SDK_ */ 1519 1520 switch(id) { 1521 case SASL_CB_AUTHNAME: 1522 #ifdef _INTEGRATED_SOLARIS_ 1523 userid = getenv("LOGNAME"); 1524 if (userid != NULL) { 1525 *result = userid; 1526 if (len) *len = strlen(userid); 1527 return SASL_OK; 1528 } 1529 #else 1530 userid = getenv("USER"); 1531 if (userid != NULL) { 1532 *result = userid; 1533 if (len) *len = strlen(userid); 1534 return SASL_OK; 1535 } 1536 userid = getenv("USERNAME"); 1537 if (userid != NULL) { 1538 *result = userid; 1539 if (len) *len = strlen(userid); 1540 return SASL_OK; 1541 } 1542 #endif /* _INTEGRATED_SOLARIS_ */ 1543 #ifdef WIN32 1544 /* for win32, try using the GetUserName standard call */ 1545 { 1546 DWORD i; 1547 BOOL rval; 1548 static char sender[128]; 1549 1550 i = sizeof(sender); 1551 rval = GetUserName(sender, &i); 1552 if ( rval) { /* got a userid */ 1553 *result = sender; 1554 if (len) *len = strlen(sender); 1555 return SASL_OK; 1556 } 1557 } 1558 #endif /* WIN32 */ 1559 return SASL_FAIL; 1560 default: 1561 return SASL_BADPARAM; 1562 } 1563 } 1564 1565 static int 1566 _sasl_verifyfile(void *context __attribute__((unused)), 1567 char *file __attribute__((unused)), 1568 int type __attribute__((unused))) 1569 { 1570 /* always say ok */ 1571 return SASL_OK; 1572 } 1573 1574 1575 static int 1576 _sasl_proxy_policy(sasl_conn_t *conn, 1577 void *context __attribute__((unused)), 1578 const char *requested_user, unsigned rlen, 1579 const char *auth_identity, unsigned alen, 1580 const char *def_realm __attribute__((unused)), 1581 unsigned urlen __attribute__((unused)), 1582 struct propctx *propctx __attribute__((unused))) 1583 { 1584 if (!conn) 1585 return SASL_BADPARAM; 1586 1587 if (!requested_user || *requested_user == '\0') 1588 return SASL_OK; 1589 1590 if (!auth_identity || !requested_user || rlen != alen || 1591 (memcmp(auth_identity, requested_user, rlen) != 0)) { 1592 #ifdef _INTEGRATED_SOLARIS_ 1593 sasl_seterror(conn, 0, 1594 gettext("Requested identity not authenticated identity")); 1595 #else 1596 sasl_seterror(conn, 0, 1597 "Requested identity not authenticated identity"); 1598 #endif /* _INTEGRATED_SOLARIS_ */ 1599 RETURN(conn, SASL_BADAUTH); 1600 } 1601 1602 return SASL_OK; 1603 } 1604 1605 int _sasl_getcallback(sasl_conn_t * conn, 1606 unsigned long callbackid, 1607 int (**pproc)(), 1608 void **pcontext) 1609 { 1610 const sasl_callback_t *callback; 1611 1612 if (!pproc || !pcontext) 1613 PARAMERROR(conn); 1614 1615 /* Some callbacks are always provided by the library */ 1616 switch (callbackid) { 1617 case SASL_CB_LIST_END: 1618 /* Nothing ever gets to provide this */ 1619 INTERROR(conn, SASL_FAIL); 1620 #ifdef _SUN_SDK_ 1621 break; 1622 #endif /* _SUN_SDK_ */ 1623 case SASL_CB_GETOPT: 1624 if (conn) { 1625 *pproc = &_sasl_conn_getopt; 1626 *pcontext = conn; 1627 } else { 1628 *pproc = &_sasl_global_getopt; 1629 *pcontext = NULL; 1630 } 1631 return SASL_OK; 1632 } 1633 1634 /* If it's not always provided by the library, see if there's 1635 * a version provided by the application for this connection... */ 1636 if (conn && conn->callbacks) { 1637 for (callback = conn->callbacks; callback->id != SASL_CB_LIST_END; 1638 callback++) { 1639 if (callback->id == callbackid) { 1640 *pproc = callback->proc; 1641 *pcontext = callback->context; 1642 if (callback->proc) { 1643 return SASL_OK; 1644 } else { 1645 return SASL_INTERACT; 1646 } 1647 } 1648 } 1649 } 1650 1651 /* And, if not for this connection, see if there's one 1652 * for all {server,client} connections... */ 1653 if (conn && conn->global_callbacks && conn->global_callbacks->callbacks) { 1654 for (callback = conn->global_callbacks->callbacks; 1655 callback->id != SASL_CB_LIST_END; 1656 callback++) { 1657 if (callback->id == callbackid) { 1658 *pproc = callback->proc; 1659 *pcontext = callback->context; 1660 if (callback->proc) { 1661 return SASL_OK; 1662 } else { 1663 return SASL_INTERACT; 1664 } 1665 } 1666 } 1667 } 1668 1669 /* Otherwise, see if the library provides a default callback. */ 1670 switch (callbackid) { 1671 #ifdef HAVE_SYSLOG 1672 case SASL_CB_LOG: 1673 *pproc = (int (*)()) &_sasl_syslog; 1674 *pcontext = NULL; 1675 return SASL_OK; 1676 #endif /* HAVE_SYSLOG */ 1677 case SASL_CB_GETPATH: 1678 *pproc = (int (*)()) &_sasl_getpath; 1679 *pcontext = NULL; 1680 return SASL_OK; 1681 case SASL_CB_AUTHNAME: 1682 *pproc = (int (*)()) &_sasl_getsimple; 1683 *pcontext = conn; 1684 return SASL_OK; 1685 case SASL_CB_VERIFYFILE: 1686 *pproc = & _sasl_verifyfile; 1687 *pcontext = NULL; 1688 return SASL_OK; 1689 case SASL_CB_PROXY_POLICY: 1690 *pproc = (int (*)()) &_sasl_proxy_policy; 1691 *pcontext = NULL; 1692 return SASL_OK; 1693 } 1694 1695 /* Unable to find a callback... */ 1696 *pproc = NULL; 1697 *pcontext = NULL; 1698 #ifdef _SUN_SDK_ 1699 if (callbackid != SASL_CB_LANGUAGE) 1700 _sasl_log(conn, SASL_LOG_NONE, "Unable to find a callback: %d", callbackid); 1701 #else 1702 sasl_seterror(conn, SASL_NOLOG, "Unable to find a callback: %d", callbackid); 1703 #endif /* _SUN_SDK_ */ 1704 RETURN(conn,SASL_FAIL); 1705 } 1706 1707 1708 #ifdef _SUN_SDK_ 1709 static void ___sasl_log (const _sasl_global_context_t *gctx, 1710 sasl_log_t *log_cb, void *log_ctx, 1711 int level, const char *fmt, va_list ap); 1712 #endif /* _SUN_SDK_ */ 1713 /* 1714 * This function is typically called from a plugin. 1715 * It creates a string from the formatting and varargs given 1716 * and calls the logging callback (syslog by default) 1717 * 1718 * %m will parse the value in the next argument as an errno string 1719 * %z will parse the next argument as a SASL error code. 1720 */ 1721 1722 void 1723 _sasl_log (sasl_conn_t *conn, 1724 int level, 1725 const char *fmt, 1726 ...) 1727 #ifdef _SUN_SDK_ 1728 { 1729 _sasl_global_context_t *gctx = conn==NULL ? _sasl_gbl_ctx() : conn->gctx; 1730 sasl_log_t *log_cb; 1731 void *log_ctx; 1732 int result; 1733 va_list ap; 1734 1735 /* See if we have a logging callback... */ 1736 result = _sasl_getcallback(conn, SASL_CB_LOG, &log_cb, &log_ctx); 1737 if (result == SASL_OK && ! log_cb) 1738 return; 1739 1740 va_start(ap, fmt); /* start varargs */ 1741 ___sasl_log(gctx, log_cb, log_ctx, level, fmt, ap); 1742 va_end(ap); 1743 } 1744 1745 void 1746 __sasl_log(const _sasl_global_context_t *gctx, 1747 const sasl_callback_t *callbacks, 1748 int level, 1749 const char *fmt, 1750 ...) 1751 { 1752 sasl_log_t *log_cb = NULL; 1753 void *log_ctx = NULL; 1754 int result; 1755 va_list ap; 1756 1757 if (callbacks) 1758 while (callbacks->id != SASL_CB_LIST_END) { 1759 if (callbacks->id == SASL_CB_LOG) { 1760 log_cb = callbacks->proc; 1761 log_ctx = callbacks->context; 1762 break; 1763 } 1764 ++callbacks; 1765 } 1766 1767 if (log_cb == NULL) { 1768 result = _sasl_getcallback(NULL, SASL_CB_LOG, &log_cb, &log_ctx); 1769 if (result != SASL_OK || ! log_cb) 1770 return; 1771 } 1772 1773 if (gctx == NULL) 1774 gctx = _sasl_gbl_ctx(); 1775 1776 va_start(ap, fmt); /* start varargs */ 1777 ___sasl_log(gctx, log_cb, log_ctx, level, fmt, ap); 1778 va_end(ap); 1779 } 1780 1781 static void 1782 ___sasl_log(const _sasl_global_context_t *gctx, 1783 sasl_log_t *log_cb, 1784 void *log_ctx, 1785 int level, 1786 const char *fmt, 1787 va_list ap) 1788 #endif /* _SUN_SDK_ */ 1789 { 1790 char *out=(char *) sasl_ALLOC(250); 1791 size_t alloclen=100; /* current allocated length */ 1792 size_t outlen=0; /* current length of output buffer */ 1793 size_t formatlen; 1794 size_t pos=0; /* current position in format string */ 1795 int result; 1796 #ifndef _SUN_SDK_ 1797 sasl_log_t *log_cb; 1798 void *log_ctx; 1799 #endif /* !_SUN_SDK_ */ 1800 1801 int ival; 1802 char *cval; 1803 #ifndef _SUN_SDK_ 1804 va_list ap; /* varargs thing */ 1805 #endif /* !_SUN_SDK_ */ 1806 1807 if(!fmt) goto done; 1808 if(!out) return; 1809 1810 formatlen = strlen(fmt); 1811 1812 #ifndef _SUN_SDK_ 1813 /* See if we have a logging callback... */ 1814 result = _sasl_getcallback(conn, SASL_CB_LOG, &log_cb, &log_ctx); 1815 if (result == SASL_OK && ! log_cb) 1816 result = SASL_FAIL; 1817 if (result != SASL_OK) goto done; 1818 1819 va_start(ap, fmt); /* start varargs */ 1820 #endif /* !_SUN_SDK_ */ 1821 1822 while(pos<formatlen) 1823 { 1824 if (fmt[pos]!='%') /* regular character */ 1825 { 1826 result = _buf_alloc(&out, &alloclen, outlen+1); 1827 if (result != SASL_OK) goto done; 1828 out[outlen]=fmt[pos]; 1829 outlen++; 1830 pos++; 1831 1832 } else { /* formating thing */ 1833 int done=0; 1834 char frmt[10]; 1835 int frmtpos=1; 1836 char tempbuf[21]; 1837 frmt[0]='%'; 1838 pos++; 1839 1840 while (done==0) 1841 { 1842 switch(fmt[pos]) 1843 { 1844 case 's': /* need to handle this */ 1845 cval = va_arg(ap, char *); /* get the next arg */ 1846 result = _sasl_add_string(&out, &alloclen, 1847 &outlen, cval); 1848 1849 if (result != SASL_OK) /* add the string */ 1850 goto done; 1851 1852 done=1; 1853 break; 1854 1855 case '%': /* double % output the '%' character */ 1856 result = _buf_alloc(&out,&alloclen,outlen+1); 1857 if (result != SASL_OK) 1858 goto done; 1859 1860 out[outlen]='%'; 1861 outlen++; 1862 done=1; 1863 break; 1864 1865 case 'm': /* insert the errno string */ 1866 result = _sasl_add_string(&out, &alloclen, &outlen, 1867 strerror(va_arg(ap, int))); 1868 if (result != SASL_OK) 1869 goto done; 1870 1871 done=1; 1872 break; 1873 1874 case 'z': /* insert the sasl error string */ 1875 result = _sasl_add_string(&out, &alloclen, &outlen, 1876 (char *) sasl_errstring(va_arg(ap, int),NULL,NULL)); 1877 if (result != SASL_OK) 1878 goto done; 1879 1880 done=1; 1881 break; 1882 1883 case 'c': 1884 #ifndef _SUN_SDK_ 1885 frmt[frmtpos++]=fmt[pos]; 1886 frmt[frmtpos]=0; 1887 #endif /* !_SUN_SDK_ */ 1888 tempbuf[0] = (char) va_arg(ap, int); /* get the next arg */ 1889 tempbuf[1]='\0'; 1890 1891 /* now add the character */ 1892 result = _sasl_add_string(&out, &alloclen, &outlen, tempbuf); 1893 if (result != SASL_OK) 1894 goto done; 1895 1896 done=1; 1897 break; 1898 1899 case 'd': 1900 case 'i': 1901 frmt[frmtpos++]=fmt[pos]; 1902 frmt[frmtpos]=0; 1903 ival = va_arg(ap, int); /* get the next arg */ 1904 1905 snprintf(tempbuf,20,frmt,ival); /* have snprintf do the work */ 1906 /* now add the string */ 1907 result = _sasl_add_string(&out, &alloclen, &outlen, tempbuf); 1908 if (result != SASL_OK) 1909 goto done; 1910 1911 done=1; 1912 1913 break; 1914 default: 1915 frmt[frmtpos++]=fmt[pos]; /* add to the formating */ 1916 frmt[frmtpos]=0; 1917 #ifdef _SUN_SDK_ 1918 if (frmtpos > sizeof (frmt) - 2) 1919 #else 1920 if (frmtpos>9) 1921 #endif /* _SUN_SDK_ */ 1922 done=1; 1923 } 1924 pos++; 1925 if (pos>formatlen) 1926 done=1; 1927 } 1928 1929 } 1930 } 1931 1932 /* put 0 at end */ 1933 result = _buf_alloc(&out, &alloclen, outlen+1); 1934 if (result != SASL_OK) goto done; 1935 out[outlen]=0; 1936 1937 va_end(ap); 1938 1939 /* send log message */ 1940 result = log_cb(log_ctx, level, out); 1941 1942 done: 1943 if(out) sasl_FREE(out); 1944 } 1945 1946 1947 1948 /* Allocate and Init a sasl_utils_t structure */ 1949 #ifdef _SUN_SDK_ 1950 sasl_utils_t * 1951 _sasl_alloc_utils(_sasl_global_context_t *gctx, sasl_conn_t *conn, 1952 sasl_global_callbacks_t *global_callbacks) 1953 #else 1954 sasl_utils_t * 1955 _sasl_alloc_utils(sasl_conn_t *conn, 1956 sasl_global_callbacks_t *global_callbacks) 1957 #endif /* _SUN_SDK_ */ 1958 { 1959 sasl_utils_t *utils; 1960 #ifdef _SUN_SDK_ 1961 sasl_allocation_utils_t alloc; 1962 sasl_mutex_utils_t mutex; 1963 1964 LOCK_MUTEX(&malloc_global_mutex); 1965 alloc = gctx->sasl_allocation_utils; 1966 mutex = gctx->sasl_mutex_utils; 1967 UNLOCK_MUTEX(&malloc_global_mutex); 1968 #endif /* _SUN_SDK_ */ 1969 1970 /* set util functions - need to do rest*/ 1971 #ifdef _SUN_SDK_ 1972 utils=alloc.malloc(sizeof(sasl_utils_t)); 1973 #else 1974 utils=sasl_ALLOC(sizeof(sasl_utils_t)); 1975 #endif /* _SUN_SDK_ */ 1976 if (utils==NULL) 1977 return NULL; 1978 1979 utils->conn = conn; 1980 1981 sasl_randcreate(&utils->rpool); 1982 1983 if (conn) { 1984 utils->getopt = &_sasl_conn_getopt; 1985 utils->getopt_context = conn; 1986 } else { 1987 utils->getopt = &_sasl_global_getopt; 1988 utils->getopt_context = global_callbacks; 1989 } 1990 1991 #ifdef _SUN_SDK_ 1992 utils->malloc=alloc.malloc; 1993 utils->calloc=alloc.calloc; 1994 utils->realloc=alloc.realloc; 1995 utils->free=alloc.free; 1996 1997 utils->mutex_alloc = mutex.alloc; 1998 utils->mutex_lock = mutex.lock; 1999 utils->mutex_unlock = mutex.unlock; 2000 utils->mutex_free = mutex.free; 2001 #else 2002 utils->malloc=_sasl_allocation_utils.malloc; 2003 utils->calloc=_sasl_allocation_utils.calloc; 2004 utils->realloc=_sasl_allocation_utils.realloc; 2005 utils->free=_sasl_allocation_utils.free; 2006 2007 utils->mutex_alloc = _sasl_mutex_utils.alloc; 2008 utils->mutex_lock = _sasl_mutex_utils.lock; 2009 utils->mutex_unlock = _sasl_mutex_utils.unlock; 2010 utils->mutex_free = _sasl_mutex_utils.free; 2011 #endif /* _SUN_SDK_ */ 2012 2013 #ifdef _SUN_SDK_ 2014 utils->MD5Init = (void (*)(MD5_CTX *))&MD5Init; 2015 utils->MD5Update= (void (*) 2016 (MD5_CTX *, const unsigned char *, unsigned int ))&MD5Update; 2017 utils->MD5Final = (void (*)(unsigned char [16], MD5_CTX *))&MD5Final; 2018 #else 2019 utils->MD5Init = &_sasl_MD5Init; 2020 utils->MD5Update= &_sasl_MD5Update; 2021 utils->MD5Final = &_sasl_MD5Final; 2022 #endif /* _SUN_SDK_ */ 2023 utils->hmac_md5 = &_sasl_hmac_md5; 2024 utils->hmac_md5_init = &_sasl_hmac_md5_init; 2025 utils->hmac_md5_final = &_sasl_hmac_md5_final; 2026 utils->hmac_md5_precalc = &_sasl_hmac_md5_precalc; 2027 utils->hmac_md5_import = &_sasl_hmac_md5_import; 2028 utils->mkchal = &sasl_mkchal; 2029 utils->utf8verify = &sasl_utf8verify; 2030 utils->rand=&sasl_rand; 2031 utils->churn=&sasl_churn; 2032 utils->checkpass=NULL; 2033 2034 utils->encode64=&sasl_encode64; 2035 utils->decode64=&sasl_decode64; 2036 2037 utils->erasebuffer=&sasl_erasebuffer; 2038 2039 utils->getprop=&sasl_getprop; 2040 utils->setprop=&sasl_setprop; 2041 2042 utils->getcallback=&_sasl_getcallback; 2043 2044 utils->log=&_sasl_log; 2045 2046 utils->seterror=&sasl_seterror; 2047 2048 #ifndef macintosh 2049 /* Aux Property Utilities */ 2050 utils->prop_new=&prop_new; 2051 utils->prop_dup=&prop_dup; 2052 utils->prop_request=&prop_request; 2053 utils->prop_get=&prop_get; 2054 utils->prop_getnames=&prop_getnames; 2055 utils->prop_clear=&prop_clear; 2056 utils->prop_dispose=&prop_dispose; 2057 utils->prop_format=&prop_format; 2058 utils->prop_set=&prop_set; 2059 utils->prop_setvals=&prop_setvals; 2060 utils->prop_erase=&prop_erase; 2061 #endif 2062 2063 /* Spares */ 2064 utils->spare_fptr = NULL; 2065 utils->spare_fptr1 = utils->spare_fptr2 = 2066 utils->spare_fptr3 = NULL; 2067 2068 return utils; 2069 } 2070 2071 int 2072 _sasl_free_utils(const sasl_utils_t ** utils) 2073 { 2074 sasl_utils_t *nonconst; 2075 #ifdef _SUN_SDK_ 2076 sasl_free_t *free_func; 2077 #endif /* _SUN_SDK_ */ 2078 2079 if(!utils) return SASL_BADPARAM; 2080 if(!*utils) return SASL_OK; 2081 2082 /* I wish we could avoid this cast, it's pretty gratuitous but it 2083 * does make life easier to have it const everywhere else. */ 2084 nonconst = (sasl_utils_t *)(*utils); 2085 2086 sasl_randfree(&(nonconst->rpool)); 2087 #ifdef _SUN_SDK_ 2088 free_func = (*utils)->free; 2089 free_func(nonconst); 2090 #else 2091 sasl_FREE(nonconst); 2092 #endif /* _SUN_SDK_ */ 2093 2094 *utils = NULL; 2095 return SASL_OK; 2096 } 2097 2098 int sasl_idle(sasl_conn_t *conn) 2099 { 2100 if (! conn) { 2101 #ifdef _SUN_SDK_ 2102 _sasl_global_context_t *gctx = _sasl_gbl_ctx(); 2103 2104 if (gctx->sasl_server_idle_hook 2105 && gctx->sasl_server_idle_hook(NULL)) 2106 return 1; 2107 if (gctx->sasl_client_idle_hook 2108 && gctx->sasl_client_idle_hook(NULL)) 2109 return 1; 2110 #else 2111 if (_sasl_server_idle_hook 2112 && _sasl_server_idle_hook(NULL)) 2113 return 1; 2114 if (_sasl_client_idle_hook 2115 && _sasl_client_idle_hook(NULL)) 2116 return 1; 2117 #endif /* _SUN_SDK_ */ 2118 return 0; 2119 } 2120 2121 if (conn->idle_hook) 2122 return conn->idle_hook(conn); 2123 2124 return 0; 2125 } 2126 2127 const sasl_callback_t * 2128 _sasl_find_getpath_callback(const sasl_callback_t *callbacks) 2129 { 2130 static const sasl_callback_t default_getpath_cb = { 2131 SASL_CB_GETPATH, 2132 &_sasl_getpath, 2133 NULL 2134 }; 2135 2136 if (callbacks) 2137 while (callbacks->id != SASL_CB_LIST_END) 2138 { 2139 if (callbacks->id == SASL_CB_GETPATH) 2140 { 2141 return callbacks; 2142 } else { 2143 ++callbacks; 2144 } 2145 } 2146 2147 return &default_getpath_cb; 2148 } 2149 2150 #ifdef _SUN_SDK_ 2151 extern const sasl_callback_t * 2152 _sasl_find_getconf_callback(const sasl_callback_t *callbacks) 2153 { 2154 static const sasl_callback_t default_getconf_cb = { 2155 SASL_CB_GETCONF, 2156 &_sasl_getconf, 2157 NULL 2158 }; 2159 2160 if (callbacks) 2161 while (callbacks->id != SASL_CB_LIST_END) 2162 { 2163 if (callbacks->id == SASL_CB_GETCONF) 2164 { 2165 return callbacks; 2166 } else { 2167 ++callbacks; 2168 } 2169 } 2170 2171 return &default_getconf_cb; 2172 } 2173 #endif /* _SUN_SDK_ */ 2174 2175 const sasl_callback_t * 2176 _sasl_find_verifyfile_callback(const sasl_callback_t *callbacks) 2177 { 2178 static const sasl_callback_t default_verifyfile_cb = { 2179 SASL_CB_VERIFYFILE, 2180 &_sasl_verifyfile, 2181 NULL 2182 }; 2183 2184 if (callbacks) 2185 while (callbacks->id != SASL_CB_LIST_END) 2186 { 2187 if (callbacks->id == SASL_CB_VERIFYFILE) 2188 { 2189 return callbacks; 2190 } else { 2191 ++callbacks; 2192 } 2193 } 2194 2195 return &default_verifyfile_cb; 2196 } 2197 2198 /* Basically a conditional call to realloc(), if we need more */ 2199 #ifdef _SUN_SDK_ 2200 int __buf_alloc(const _sasl_global_context_t *gctx, char **rwbuf, 2201 size_t *curlen, size_t newlen) 2202 #else 2203 int _buf_alloc(char **rwbuf, size_t *curlen, size_t newlen) 2204 #endif /* _SUN_SDK_ */ 2205 { 2206 if(!(*rwbuf)) { 2207 *rwbuf = sasl_ALLOC(newlen); 2208 if (*rwbuf == NULL) { 2209 *curlen = 0; 2210 return SASL_NOMEM; 2211 } 2212 *curlen = newlen; 2213 } else if(*rwbuf && *curlen < newlen) { 2214 size_t needed = 2*(*curlen); 2215 2216 while(needed < newlen) 2217 needed *= 2; 2218 2219 *rwbuf = sasl_REALLOC(*rwbuf, needed); 2220 2221 if (*rwbuf == NULL) { 2222 *curlen = 0; 2223 return SASL_NOMEM; 2224 } 2225 *curlen = needed; 2226 } 2227 2228 return SASL_OK; 2229 } 2230 2231 /* for the mac os x cfm glue: this lets the calling function 2232 get pointers to the error buffer without having to touch the sasl_conn_t struct */ 2233 void _sasl_get_errorbuf(sasl_conn_t *conn, char ***bufhdl, size_t **lenhdl) 2234 { 2235 *bufhdl = &conn->error_buf; 2236 *lenhdl = &conn->error_buf_len; 2237 } 2238 2239 /* convert an iovec to a single buffer */ 2240 #ifdef _SUN_SDK_ 2241 int _iovec_to_buf(const _sasl_global_context_t *gctx, const struct iovec *vec, 2242 unsigned numiov, buffer_info_t **output) 2243 #else 2244 int _iovec_to_buf(const struct iovec *vec, 2245 unsigned numiov, buffer_info_t **output) 2246 #endif /* _SUN_SDK_ */ 2247 { 2248 unsigned i; 2249 int ret; 2250 buffer_info_t *out; 2251 char *pos; 2252 2253 if(!vec || !output) return SASL_BADPARAM; 2254 2255 if(!(*output)) { 2256 *output = sasl_ALLOC(sizeof(buffer_info_t)); 2257 if(!*output) return SASL_NOMEM; 2258 memset(*output,0,sizeof(buffer_info_t)); 2259 } 2260 2261 out = *output; 2262 2263 out->curlen = 0; 2264 for(i=0; i<numiov; i++) 2265 out->curlen += vec[i].iov_len; 2266 2267 ret = _buf_alloc(&out->data, &out->reallen, out->curlen); 2268 2269 if(ret != SASL_OK) return SASL_NOMEM; 2270 2271 memset(out->data, 0, out->reallen); 2272 pos = out->data; 2273 2274 for(i=0; i<numiov; i++) { 2275 memcpy(pos, vec[i].iov_base, vec[i].iov_len); 2276 pos += vec[i].iov_len; 2277 } 2278 2279 return SASL_OK; 2280 } 2281 2282 /* This code might be useful in the future, but it isn't now, so.... */ 2283 #if 0 2284 int _sasl_iptostring(const struct sockaddr *addr, socklen_t addrlen, 2285 char *out, unsigned outlen) { 2286 char hbuf[NI_MAXHOST], pbuf[NI_MAXSERV]; 2287 2288 if(!addr || !out) return SASL_BADPARAM; 2289 2290 getnameinfo(addr, addrlen, hbuf, sizeof(hbuf), pbuf, sizeof(pbuf), 2291 NI_NUMERICHOST | NI_WITHSCOPEID | NI_NUMERICSERV); 2292 2293 if(outlen < strlen(hbuf) + strlen(pbuf) + 2) 2294 return SASL_BUFOVER; 2295 2296 snprintf(out, outlen, "%s;%s", hbuf, pbuf); 2297 2298 return SASL_OK; 2299 } 2300 #endif 2301 2302 #ifdef _SUN_SDK_ 2303 /* An ipv6 address will contain at least two colons */ 2304 static int can_be_ipv6(const char *addr) 2305 { 2306 const char *p; 2307 2308 if ((p = strchr(addr, ':')) == NULL) 2309 return (0); 2310 2311 p = strchr(p + 1, ':'); 2312 2313 return (p != NULL); 2314 } 2315 #endif /* _SUN_SDK_ */ 2316 2317 int _sasl_ipfromstring(const char *addr, 2318 struct sockaddr *out, socklen_t outlen) 2319 { 2320 int i, j; 2321 struct addrinfo hints, *ai = NULL; 2322 char hbuf[NI_MAXHOST]; 2323 #ifdef _SUN_SDK_ 2324 const char *start, *end, *p; 2325 int addr_only = 1; 2326 #endif /* _SUN_SDK_ */ 2327 2328 /* A NULL out pointer just implies we don't do a copy, just verify it */ 2329 2330 if(!addr) return SASL_BADPARAM; 2331 2332 #ifdef _SUN_SDK_ 2333 end = strchr(addr, ']'); 2334 if (end != NULL) { 2335 /* This an rfc 2732 ipv6 address */ 2336 start = strchr(addr, '['); 2337 if (start >= end || start == NULL) 2338 return SASL_BADPARAM; 2339 for (i = 0, p = start + 1; p < end; p++) { 2340 hbuf[i++] = *p; 2341 if (i >= NI_MAXHOST) 2342 return SASL_BADPARAM; 2343 } 2344 p = strchr(end, ':'); 2345 if (p == NULL) 2346 p = end + 1; 2347 else 2348 p = p + 1; 2349 } else if (can_be_ipv6(addr) != 0) { 2350 /* Parse the address */ 2351 for (i = 0; addr[i] != '\0' && addr[i] != ';'; ) { 2352 hbuf[i] = addr[i]; 2353 if (++i >= NI_MAXHOST) 2354 return SASL_BADPARAM; 2355 } 2356 if (addr[i] == ';') 2357 p = &addr[i+1]; 2358 else 2359 p = &addr[i]; 2360 } else { 2361 for (i = 0; addr[i] != '\0' && addr[i] != ';' && addr[i] != ':'; ) { 2362 hbuf[i] = addr[i]; 2363 if (isalpha(addr[i])) 2364 addr_only = 0; 2365 if (++i >= NI_MAXHOST) 2366 return SASL_BADPARAM; 2367 } 2368 if (addr[i] == ';' || addr[i] == ':') 2369 p = &addr[i+1]; 2370 else 2371 p = &addr[i]; 2372 } 2373 hbuf[i] = '\0'; 2374 for (j = 0; p[j] != '\0'; j++) 2375 if (!isdigit((int)(p[j]))) 2376 return SASL_BADPARAM; 2377 if (atoi(p) == 0) 2378 p = NULL; 2379 #else 2380 /* Parse the address */ 2381 for (i = 0; addr[i] != '\0' && addr[i] != ';'; i++) { 2382 if (i >= NI_MAXHOST) 2383 return SASL_BADPARAM; 2384 hbuf[i] = addr[i]; 2385 } 2386 hbuf[i] = '\0'; 2387 2388 if (addr[i] == ';') 2389 i++; 2390 /* XXX: Do we need this check? */ 2391 for (j = i; addr[j] != '\0'; j++) 2392 if (!isdigit((int)(addr[j]))) 2393 return SASL_BADPARAM; 2394 #endif /* _SUN_SDK_ */ 2395 2396 memset(&hints, 0, sizeof(hints)); 2397 hints.ai_family = PF_UNSPEC; 2398 hints.ai_socktype = SOCK_STREAM; 2399 #ifdef _SUN_SDK_ 2400 hints.ai_flags = addr_only ? AI_PASSIVE | AI_NUMERICHOST : AI_PASSIVE; 2401 if (getaddrinfo(hbuf, p, &hints, &ai) != 0) 2402 #else 2403 hints.ai_flags = AI_PASSIVE | AI_NUMERICHOST; 2404 if (getaddrinfo(hbuf, &addr[i], &hints, &ai) != 0) 2405 #endif /* _SUN_SDK_ */ 2406 return SASL_BADPARAM; 2407 2408 if (out) { 2409 if (outlen < (socklen_t)ai->ai_addrlen) { 2410 freeaddrinfo(ai); 2411 return SASL_BUFOVER; 2412 } 2413 memcpy(out, ai->ai_addr, ai->ai_addrlen); 2414 } 2415 2416 freeaddrinfo(ai); 2417 2418 return SASL_OK; 2419 } 2420 2421 #ifdef _SUN_SDK_ 2422 int _sasl_build_mechlist(_sasl_global_context_t *gctx) 2423 #else 2424 int _sasl_build_mechlist(void) 2425 #endif /* _SUN_SDK_ */ 2426 { 2427 int count = 0; 2428 sasl_string_list_t *clist = NULL, *slist = NULL, *olist = NULL; 2429 sasl_string_list_t *p, *q, **last, *p_next; 2430 2431 #ifdef _SUN_SDK_ 2432 char **global_mech_list; 2433 2434 LOCK_MUTEX(&global_mutex); 2435 2436 clist = _sasl_client_mechs(gctx); 2437 slist = _sasl_server_mechs(gctx); 2438 2439 global_mech_list = gctx->global_mech_list; 2440 #else 2441 clist = _sasl_client_mechs(); 2442 slist = _sasl_server_mechs(); 2443 #endif /* _SUN_SDK_ */ 2444 2445 if(!clist) { 2446 olist = slist; 2447 } else { 2448 int flag; 2449 2450 /* append slist to clist, and set olist to clist */ 2451 for(p = slist; p; p = p_next) { 2452 flag = 0; 2453 p_next = p->next; 2454 2455 last = &clist; 2456 for(q = clist; q; q = q->next) { 2457 if(!strcmp(q->d, p->d)) { 2458 /* They match, set the flag */ 2459 flag = 1; 2460 break; 2461 } 2462 last = &(q->next); 2463 } 2464 2465 if(!flag) { 2466 *last = p; 2467 p->next = NULL; 2468 } else { 2469 sasl_FREE(p); 2470 } 2471 } 2472 2473 olist = clist; 2474 } 2475 2476 if(!olist) { 2477 #ifdef _SUN_SDK_ 2478 UNLOCK_MUTEX(&global_mutex); 2479 #else 2480 printf ("no olist"); 2481 #endif /* _SUN_SDK_ */ 2482 return SASL_FAIL; 2483 } 2484 2485 for (p = olist; p; p = p->next) count++; 2486 2487 if(global_mech_list) { 2488 sasl_FREE(global_mech_list); 2489 #ifdef _SUN_SDK_ 2490 gctx->global_mech_list = NULL; 2491 #else 2492 global_mech_list = NULL; 2493 #endif /* _SUN_SDK_ */ 2494 } 2495 2496 global_mech_list = sasl_ALLOC((count + 1) * sizeof(char *)); 2497 if(!global_mech_list) return SASL_NOMEM; 2498 2499 memset(global_mech_list, 0, (count + 1) * sizeof(char *)); 2500 #ifdef _SUN_SDK_ 2501 gctx->global_mech_list = global_mech_list; 2502 #endif /* _SUN_SDK_ */ 2503 2504 count = 0; 2505 for (p = olist; p; p = p_next) { 2506 p_next = p->next; 2507 2508 global_mech_list[count++] = (char *) p->d; 2509 2510 sasl_FREE(p); 2511 } 2512 2513 #ifdef _SUN_SDK_ 2514 UNLOCK_MUTEX(&global_mutex); 2515 #endif /* _SUN_SDK_ */ 2516 2517 return SASL_OK; 2518 } 2519 2520 const char ** sasl_global_listmech(void) 2521 { 2522 #ifdef _SUN_SDK_ 2523 _sasl_global_context_t *gctx = _sasl_gbl_ctx(); 2524 2525 return (const char **)gctx->global_mech_list; 2526 #else 2527 return (const char **)global_mech_list; 2528 #endif /* _SUN_SDK_ */ 2529 } 2530 2531 int sasl_listmech(sasl_conn_t *conn, 2532 const char *user, 2533 const char *prefix, 2534 const char *sep, 2535 const char *suffix, 2536 const char **result, 2537 unsigned *plen, 2538 int *pcount) 2539 { 2540 if(!conn) { 2541 return SASL_BADPARAM; 2542 } else if(conn->type == SASL_CONN_SERVER) { 2543 RETURN(conn, _sasl_server_listmech(conn, user, prefix, sep, suffix, 2544 result, plen, pcount)); 2545 } else if (conn->type == SASL_CONN_CLIENT) { 2546 RETURN(conn, _sasl_client_listmech(conn, prefix, sep, suffix, 2547 result, plen, pcount)); 2548 } 2549 2550 PARAMERROR(conn); 2551 } 2552 2553 #ifdef _SUN_SDK_ 2554 /* 2555 * Creates a context so that libraries may use libsasl independently 2556 * of applications using libsasl. 2557 * Returns NULL on failure. 2558 * 2559 * sasl_free_context frees the context 2560 * To use libsasl independently of the default context, use 2561 * _sasl_server_init() instead of sasl_server_init() 2562 * _sasl_server_new() instead of sasl_server_new() 2563 * _sasl_client_init() instead of sasl_client_init() 2564 * _sasl_client_new() instead of sasl_client_new() 2565 * _sasl_client_add_plugin() instead of sasl_client_add_plugin() 2566 * _sasl_server_add_plugin() instead of sasl_server_add_plugin() 2567 * _sasl_canonuser_add_plugin() instead of sasl_canonuser_add_plugin() 2568 * _sasl_auxprop_add_plugin() instead of sasl_auxprop_add_plugin() 2569 */ 2570 2571 void *sasl_create_context(void) 2572 { 2573 _sasl_global_context_t *gctx; 2574 2575 gctx = (_sasl_global_context_t *) 2576 sasl_sun_ALLOC(sizeof(_sasl_global_context_t)); 2577 2578 if (gctx != NULL) { 2579 memset(gctx, 0, sizeof(_sasl_global_context_t)); 2580 2581 gctx->server_global_callbacks.gctx = gctx; 2582 gctx->client_global_callbacks.gctx = gctx; 2583 LOCK_MUTEX(&malloc_global_mutex); 2584 gctx->sasl_allocation_utils.malloc = (sasl_malloc_t *)&malloc; 2585 gctx->sasl_allocation_utils.calloc = (sasl_calloc_t *)&calloc; 2586 gctx->sasl_allocation_utils.realloc = (sasl_realloc_t *)&realloc; 2587 gctx->sasl_allocation_utils.free = (sasl_free_t *)&free; 2588 gctx->sasl_mutex_utils.alloc = sasl_mutex_alloc; 2589 gctx->sasl_mutex_utils.lock = sasl_mutex_lock; 2590 gctx->sasl_mutex_utils.unlock = sasl_mutex_unlock; 2591 gctx->sasl_mutex_utils.free = sasl_mutex_free; 2592 UNLOCK_MUTEX(&malloc_global_mutex); 2593 } 2594 return gctx; 2595 } 2596 2597 /* Frees the context created by sasl_create_context() */ 2598 void sasl_free_context(void *context) 2599 { 2600 _sasl_dispose_context(context); 2601 if (context != NULL) { 2602 sasl_sun_FREE(context); 2603 } 2604 } 2605 2606 /* Used by both sasl_done() and sasl_free_context() to free context */ 2607 static void _sasl_dispose_context(_sasl_global_context_t *gctx) 2608 { 2609 if (gctx == NULL) 2610 return; 2611 2612 if (gctx->sasl_server_cleanup_hook && 2613 gctx->sasl_server_cleanup_hook(gctx) == SASL_OK) { 2614 gctx->sasl_server_idle_hook = NULL; 2615 gctx->sasl_server_cleanup_hook = NULL; 2616 } 2617 2618 if (gctx->sasl_client_cleanup_hook && 2619 gctx->sasl_client_cleanup_hook(gctx) == SASL_OK) { 2620 gctx->sasl_client_idle_hook = NULL; 2621 gctx->sasl_client_cleanup_hook = NULL; 2622 } 2623 2624 if(gctx->sasl_server_cleanup_hook || gctx->sasl_client_cleanup_hook) 2625 return; 2626 2627 _sasl_canonuser_free(gctx); 2628 _sasl_done_with_plugins(gctx); 2629 2630 sasl_config_free(gctx); 2631 2632 if (gctx->free_mutex != NULL) 2633 sasl_MUTEX_FREE(gctx->free_mutex); 2634 gctx->free_mutex = NULL; 2635 2636 _sasl_free_utils(&(gctx->sasl_server_global_utils)); 2637 _sasl_free_utils(&(gctx->sasl_canonusr_global_utils)); 2638 2639 LOCK_MUTEX(&global_mutex); 2640 sasl_FREE((void *)gctx->global_mech_list); 2641 gctx->global_mech_list = NULL; 2642 UNLOCK_MUTEX(&global_mutex); 2643 2644 /* in case of another init/done */ 2645 gctx->sasl_server_cleanup_hook = NULL; 2646 gctx->sasl_client_cleanup_hook = NULL; 2647 2648 gctx->sasl_client_idle_hook = NULL; 2649 gctx->sasl_server_idle_hook = NULL; 2650 } 2651 2652 _sasl_global_context_t *_sasl_gbl_ctx(void) 2653 { 2654 static _sasl_global_context_t gbl_ctx = { 2655 0, /* sasl_server_active */ 2656 NULL, /* mechlist */ 2657 NULL, /* splug_path_info */ 2658 {NULL, NULL, &gbl_ctx}, /* server_global_callbacks */ 2659 NULL, /* sasl_server_cleanup_hook */ 2660 NULL, /* sasl_server_idle_hook */ 2661 NULL, /* cmechlist */ 2662 NULL, /* cplug_path_info */ 2663 {NULL, NULL, &gbl_ctx}, /* client_global_callbacks */ 2664 0, /* sasl_client_active */ 2665 NULL, /* sasl_client_cleanup_hook */ 2666 NULL, /* sasl_client_idle_hook */ 2667 NULL, /* sasl_server_global_utils */ 2668 NULL, /* sasl_client_global_utils */ 2669 NULL, /* configlist */ 2670 0, /* nconfiglist */ 2671 NULL, /* config_path */ 2672 0, /* config_last_read */ 2673 NULL, /* auxprop_head */ 2674 NULL, /* canonuser_head */ 2675 NULL, /* global_mech_list */ 2676 NULL, /* free_mutex */ 2677 {(sasl_malloc_t *)&malloc, (sasl_calloc_t *)&calloc, 2678 (sasl_realloc_t *)&realloc, (sasl_free_t *)&free}, 2679 /* sasl_allocation_utils */ 2680 {&sasl_mutex_alloc, &sasl_mutex_lock, &sasl_mutex_unlock, 2681 &sasl_mutex_free}, /* sasl_mutex_utils */ 2682 NULL /* lib_list_head */ 2683 }; 2684 2685 return (&gbl_ctx); 2686 } 2687 2688 static int 2689 _sasl_getconf(void *context __attribute__((unused)), const char **conf) 2690 { 2691 if (! conf) 2692 return SASL_BADPARAM; 2693 2694 *conf = SASL_CONFDIR; 2695 2696 return SASL_OK; 2697 } 2698 2699 /* EXPORT DELETE START */ 2700 /* CRYPT DELETE START */ 2701 #ifdef _INTEGRATED_SOLARIS_ 2702 #pragma fini(sasl_fini) 2703 int 2704 sasl_fini(void) 2705 { 2706 reg_list_t *next; 2707 2708 while (reg_list_base != NULL) { 2709 next = reg_list_base->next; 2710 free(reg_list_base); 2711 reg_list_base = next; 2712 } 2713 return (0); 2714 } 2715 #endif /* _INTEGRATED_SOLARIS_ */ 2716 /* CRYPT DELETE END */ 2717 /* EXPORT DELETE END */ 2718 2719 #endif /* _SUN_SDK_ */ 2720 2721 #ifndef WIN32 2722 static int 2723 _sasl_getpath(void *context __attribute__((unused)), 2724 const char **path) 2725 { 2726 if (! path) 2727 return SASL_BADPARAM; 2728 2729 #ifdef _SUN_SDK_ 2730 /* SASL_PATH is not allowed for SUN SDK */ 2731 #else 2732 *path = getenv(SASL_PATH_ENV_VAR); 2733 if (! *path) 2734 #endif /* _SUN_SDK_ */ 2735 *path = PLUGINDIR; 2736 2737 return SASL_OK; 2738 } 2739 2740 #else 2741 /* Return NULL on failure */ 2742 static int 2743 _sasl_getpath(void *context __attribute__((unused)), const char **path) 2744 { 2745 /* Open registry entry, and find all registered SASL libraries. 2746 * 2747 * Registry location: 2748 * 2749 * SOFTWARE\\Carnegie Mellon\\Project Cyrus\\SASL Library 2750 * 2751 * Key - value: 2752 * 2753 * "SearchPath" - value: PATH like (';' delimited) list 2754 * of directories where to search for plugins 2755 * The list may contain references to environment 2756 * variables (e.g. %PATH%). 2757 * 2758 */ 2759 HKEY hKey; 2760 DWORD ret; 2761 DWORD ValueType; /* value type */ 2762 DWORD cbData; /* value size */ 2763 BYTE * ValueData; /* value */ 2764 DWORD cbExpandedData; /* "expanded" value size */ 2765 BYTE * ExpandedValueData; /* "expanded" value */ 2766 char * return_value; /* function return value */ 2767 char * tmp; 2768 2769 /* Initialization */ 2770 ExpandedValueData = NULL; 2771 ValueData = NULL; 2772 return_value = NULL; 2773 2774 /* Open the registry */ 2775 ret = RegOpenKeyEx(HKEY_LOCAL_MACHINE, 2776 SASL_ROOT_KEY, 2777 0, 2778 KEY_READ, 2779 &hKey); 2780 2781 if (ret != ERROR_SUCCESS) { 2782 /* no registry entry */ 2783 *path = PLUGINDIR; 2784 return SASL_OK; 2785 } 2786 2787 /* figure out value type and required buffer size */ 2788 /* the size will include space for terminating NUL if required */ 2789 RegQueryValueEx (hKey, 2790 SASL_PATH_SUBKEY, 2791 NULL, /* reserved */ 2792 &ValueType, 2793 NULL, 2794 &cbData); 2795 2796 /* Only accept string related types */ 2797 if (ValueType != REG_EXPAND_SZ && 2798 ValueType != REG_MULTI_SZ && 2799 ValueType != REG_SZ) { 2800 return_value = NULL; 2801 goto CLEANUP; 2802 } 2803 2804 /* Any high water mark? */ 2805 ValueData = sasl_ALLOC(cbData); 2806 if (ValueData == NULL) { 2807 return_value = NULL; 2808 goto CLEANUP; 2809 }; 2810 2811 RegQueryValueEx (hKey, 2812 SASL_PATH_SUBKEY, 2813 NULL, /* reserved */ 2814 &ValueType, 2815 ValueData, 2816 &cbData); 2817 2818 switch (ValueType) { 2819 case REG_EXPAND_SZ: 2820 /* : A random starting guess */ 2821 cbExpandedData = cbData + 1024; 2822 ExpandedValueData = sasl_ALLOC(cbExpandedData); 2823 if (ExpandedValueData == NULL) { 2824 return_value = NULL; 2825 goto CLEANUP; 2826 }; 2827 2828 cbExpandedData = ExpandEnvironmentStrings( 2829 ValueData, 2830 ExpandedValueData, 2831 cbExpandedData); 2832 2833 if (cbExpandedData == 0) { 2834 /* : GetLastError() contains the reason for failure */ 2835 return_value = NULL; 2836 goto CLEANUP; 2837 } 2838 2839 /* : Must retry expansion with the bigger buffer */ 2840 if (cbExpandedData > cbData + 1024) { 2841 /* : Memory leak here if can't realloc */ 2842 ExpandedValueData = sasl_REALLOC(ExpandedValueData, cbExpandedData); 2843 if (ExpandedValueData == NULL) { 2844 return_value = NULL; 2845 goto CLEANUP; 2846 }; 2847 2848 cbExpandedData = ExpandEnvironmentStrings( 2849 ValueData, 2850 ExpandedValueData, 2851 cbExpandedData); 2852 2853 /* : This should not happen */ 2854 if (cbExpandedData == 0) { 2855 /* : GetLastError() contains the reason for failure */ 2856 return_value = NULL; 2857 goto CLEANUP; 2858 } 2859 } 2860 2861 sasl_FREE(ValueData); 2862 ValueData = ExpandedValueData; 2863 /* : This is to prevent automatical freeing of this block on cleanup */ 2864 ExpandedValueData = NULL; 2865 2866 break; 2867 2868 case REG_MULTI_SZ: 2869 tmp = ValueData; 2870 2871 /* : We shouldn't overflow here, as the buffer is guarantied 2872 : to contain at least two consequent NULs */ 2873 while (1) { 2874 if (tmp[0] == '\0') { 2875 /* : Stop the process if we found the end of the string (two consequent NULs) */ 2876 if (tmp[1] == '\0') { 2877 break; 2878 } 2879 2880 /* : Replace delimiting NUL with our delimiter characted */ 2881 tmp[0] = PATHS_DELIMITER; 2882 } 2883 tmp += strlen(tmp); 2884 } 2885 break; 2886 2887 case REG_SZ: 2888 /* Do nothing, it is good as is */ 2889 break; 2890 2891 default: 2892 return_value = NULL; 2893 goto CLEANUP; 2894 } 2895 2896 return_value = ValueData; 2897 2898 CLEANUP: 2899 RegCloseKey(hKey); 2900 if (ExpandedValueData != NULL) sasl_FREE(ExpandedValueData); 2901 if (return_value == NULL) { 2902 if (ValueData != NULL) sasl_FREE(ValueData); 2903 } 2904 *path = return_value; 2905 2906 #ifdef _SUN_SDK_ 2907 /* SASL_PATH is not allowed for SUN SDK */ 2908 if (! *path) 2909 *path = PLUGINDIR; 2910 #endif /* _SUN_SDK_ */ 2911 return SASL_OK; 2912 } 2913 2914 #endif 2915