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   1 /* aclparse.c - routines to parse and check acl's */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 1998-2006 The OpenLDAP Foundation.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in the file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16 /* Portions Copyright (c) 1995 Regents of the University of Michigan.
  17  * All rights reserved.
  18  *
  19  * Redistribution and use in source and binary forms are permitted
  20  * provided that this notice is preserved and that due credit is given
  21  * to the University of Michigan at Ann Arbor. The name of the University
  22  * may not be used to endorse or promote products derived from this
  23  * software without specific prior written permission. This software
  24  * is provided ``as is'' without express or implied warranty.
  25  */
  26
  27 #include "portable.h"
  28
  29 #include <stdio.h>
  30
  31 #include <ac/ctype.h>
  32 #include <ac/regex.h>
  33 #include <ac/socket.h>
  34 #include <ac/string.h>
  35 #include <ac/unistd.h>
  36
  37 #include "slap.h"
  38 #include "lber_pvt.h"
  39 #include "lutil.h"
  40
  41 static const char style_base[] = "base";
  42 char *style_strings[] = {
  43         "regex",
  44         "expand",
  45         "exact",
  46         "one",
  47         "subtree",
  48         "children",
  49         "level",
  50         "attrof",
  51         "anonymous",
  52         "users",
  53         "self",
  54         "ip",
  55         "path",
  56         NULL
  57 };
  58
  59 static void             split(char *line, int splitchar, char **left, char **right);
  60 static void             access_append(Access **l, Access *a);
  61 static void             access_free( Access *a );
  62 static int              acl_usage(void);
  63
  64 static void             acl_regex_normalized_dn(const char *src, struct berval *pat);
  65
  66 #ifdef LDAP_DEBUG
  67 static void             print_acl(Backend *be, AccessControl *a);
  68 #endif
  69
  70 static int              check_scope( BackendDB *be, AccessControl *a );
  71
  72 #ifdef SLAP_DYNACL
  73 static int
  74 slap_dynacl_config(
  75         const char *fname,
  76         int lineno,
  77         Access *b,
  78         const char *name,
  79         const char *opts,
  80         slap_style_t sty,
  81         const char *right )
  82 {
  83         slap_dynacl_t   *da, *tmp;
  84         int             rc = 0;
  85
  86         for ( da = b->a_dynacl; da; da = da->da_next ) {
  87                 if ( strcasecmp( da->da_name, name ) == 0 ) {
  88                         Debug( LDAP_DEBUG_ANY,
  89                                 "%s: line %d: dynacl \"%s\" already specified.\n",
  90                                 fname, lineno, name );
  91                         return acl_usage();
  92                 }
  93         }
  94
  95         da = slap_dynacl_get( name );
  96         if ( da == NULL ) {
  97                 return -1;
  98         }
  99
 100         tmp = ch_malloc( sizeof( slap_dynacl_t ) );
 101         *tmp = *da;
 102
 103         if ( tmp->da_parse ) {
 104                 rc = ( *tmp->da_parse )( fname, lineno, opts, sty, right, &tmp->da_private );
 105                 if ( rc ) {
 106                         ch_free( tmp );
 107                         return rc;
 108                 }
 109         }
 110
 111         tmp->da_next = b->a_dynacl;
 112         b->a_dynacl = tmp;
 113
 114         return 0;
 115 }
 116 #endif /* SLAP_DYNACL */
 117
 118 static void
 119 regtest(const char *fname, int lineno, char *pat) {
 120         int e;
 121         regex_t re;
 122
 123         char            buf[ SLAP_TEXT_BUFLEN ];
 124         unsigned        size;
 125
 126         char *sp;
 127         char *dp;
 128         int  flag;
 129
 130         sp = pat;
 131         dp = buf;
 132         size = 0;
 133         buf[0] = '\0';
 134
 135         for (size = 0, flag = 0; (size < sizeof(buf)) && *sp; sp++) {
 136                 if (flag) {
 137                         if (*sp == '$'|| (*sp >= '0' && *sp <= '9')) {
 138                                 *dp++ = *sp;
 139                                 size++;
 140                         }
 141                         flag = 0;
 142
 143                 } else {
 144                         if (*sp == '$') {
 145                                 flag = 1;
 146                         } else {
 147                                 *dp++ = *sp;
 148                                 size++;
 149                         }
 150                 }
 151         }
 152
 153         *dp = '\0';
 154         if ( size >= (sizeof(buf) - 1) ) {
 155                 Debug( LDAP_DEBUG_ANY,
 156                         "%s: line %d: regular expression \"%s\" too large\n",
 157                         fname, lineno, pat );
 158                 (void)acl_usage();
 159                 exit( EXIT_FAILURE );
 160         }
 161
 162         if ((e = regcomp(&re, buf, REG_EXTENDED|REG_ICASE))) {
 163                 char error[ SLAP_TEXT_BUFLEN ];
 164
 165                 regerror(e, &re, error, sizeof(error));
 166
 167                 snprintf( buf, sizeof( buf ),
 168                         "regular expression \"%s\" bad because of %s",
 169                         pat, error );
 170                 Debug( LDAP_DEBUG_ANY,
 171                         "%s: line %d: %s\n",
 172                         fname, lineno, buf );
 173                 acl_usage();
 174                 exit( EXIT_FAILURE );
 175         }
 176         regfree(&re);
 177 }
 178
 179 /*
 180  * Experimental
 181  *
 182  * Check if the pattern of an ACL, if any, matches the scope
 183  * of the backend it is defined within.
 184  */
 185 #define ACL_SCOPE_UNKNOWN       (-2)
 186 #define ACL_SCOPE_ERR           (-1)
 187 #define ACL_SCOPE_OK            (0)
 188 #define ACL_SCOPE_PARTIAL       (1)
 189 #define ACL_SCOPE_WARN          (2)
 190
 191 static int
 192 check_scope( BackendDB *be, AccessControl *a )
 193 {
 194         ber_len_t       patlen;
 195         struct berval   dn;
 196
 197         dn = be->be_nsuffix[0];
 198
 199         if ( BER_BVISEMPTY( &dn ) ) {
 200                 return ACL_SCOPE_OK;
 201         }
 202
 203         if ( !BER_BVISEMPTY( &a->acl_dn_pat ) ||
 204                         a->acl_dn_style != ACL_STYLE_REGEX )
 205         {
 206                 slap_style_t    style = a->acl_dn_style;
 207
 208                 if ( style == ACL_STYLE_REGEX ) {
 209                         char            dnbuf[SLAP_LDAPDN_MAXLEN + 2];
 210                         char            rebuf[SLAP_LDAPDN_MAXLEN + 1];
 211                         ber_len_t       rebuflen;
 212                         regex_t         re;
 213                         int             rc;
 214
 215                         /* add trailing '$' to database suffix to form
 216                          * a simple trial regex pattern "<suffix>$" */
 217                         AC_MEMCPY( dnbuf, be->be_nsuffix[0].bv_val,
 218                                 be->be_nsuffix[0].bv_len );
 219                         dnbuf[be->be_nsuffix[0].bv_len] = '$';
 220                         dnbuf[be->be_nsuffix[0].bv_len + 1] = '\0';
 221
 222                         if ( regcomp( &re, dnbuf, REG_EXTENDED|REG_ICASE ) ) {
 223                                 return ACL_SCOPE_WARN;
 224                         }
 225
 226                         /* remove trailing ')$', if any, from original
 227                          * regex pattern */
 228                         rebuflen = a->acl_dn_pat.bv_len;
 229                         AC_MEMCPY( rebuf, a->acl_dn_pat.bv_val, rebuflen + 1 );
 230                         if ( rebuf[rebuflen - 1] == '$' ) {
 231                                 rebuf[--rebuflen] = '\0';
 232                         }
 233                         while ( rebuflen > be->be_nsuffix[0].bv_len && rebuf[rebuflen - 1] == ')' ) {
 234                                 rebuf[--rebuflen] = '\0';
 235                         }
 236                         if ( rebuflen == be->be_nsuffix[0].bv_len ) {
 237                                 rc = ACL_SCOPE_WARN;
 238                                 goto regex_done;
 239                         }
 240
 241                         /* not a clear indication of scoping error, though */
 242                         rc = regexec( &re, rebuf, 0, NULL, 0 )
 243                                 ? ACL_SCOPE_WARN : ACL_SCOPE_OK;
 244
 245 regex_done:;
 246                         regfree( &re );
 247                         return rc;
 248                 }
 249
 250                 patlen = a->acl_dn_pat.bv_len;
 251                 /* If backend suffix is longer than pattern,
 252                  * it is a potential mismatch (in the sense
 253                  * that a superior naming context could
 254                  * match */
 255                 if ( dn.bv_len > patlen ) {
 256                         /* base is blatantly wrong */
 257                         if ( style == ACL_STYLE_BASE ) return ACL_SCOPE_ERR;
 258
 259                         /* a style of one can be wrong if there is
 260                          * more than one level between the suffix
 261                          * and the pattern */
 262                         if ( style == ACL_STYLE_ONE ) {
 263                                 ber_len_t       rdnlen = 0;
 264                                 int             sep = 0;
 265
 266                                 if ( patlen > 0 ) {
 267                                         if ( !DN_SEPARATOR( dn.bv_val[dn.bv_len - patlen - 1] )) {
 268                                                 return ACL_SCOPE_ERR;
 269                                         }
 270                                         sep = 1;
 271                                 }
 272
 273                                 rdnlen = dn_rdnlen( NULL, &dn );
 274                                 if ( rdnlen != dn.bv_len - patlen - sep )
 275                                         return ACL_SCOPE_ERR;
 276                         }
 277
 278                         /* if the trailing part doesn't match,
 279                          * then it's an error */
 280                         if ( strcmp( a->acl_dn_pat.bv_val,
 281                                 &dn.bv_val[dn.bv_len - patlen] ) != 0 )
 282                         {
 283                                 return ACL_SCOPE_ERR;
 284                         }
 285
 286                         return ACL_SCOPE_PARTIAL;
 287                 }
 288
 289                 switch ( style ) {
 290                 case ACL_STYLE_BASE:
 291                 case ACL_STYLE_ONE:
 292                 case ACL_STYLE_CHILDREN:
 293                 case ACL_STYLE_SUBTREE:
 294                         break;
 295
 296                 default:
 297                         assert( 0 );
 298                         break;
 299                 }
 300
 301                 if ( dn.bv_len < patlen &&
 302                         !DN_SEPARATOR( a->acl_dn_pat.bv_val[patlen - dn.bv_len - 1] ))
 303                 {
 304                         return ACL_SCOPE_ERR;
 305                 }
 306
 307                 if ( strcmp( &a->acl_dn_pat.bv_val[patlen - dn.bv_len], dn.bv_val )
 308                         != 0 )
 309                 {
 310                         return ACL_SCOPE_ERR;
 311                 }
 312
 313                 return ACL_SCOPE_OK;
 314         }
 315
 316         return ACL_SCOPE_UNKNOWN;
 317 }
 318
 319 int
 320 parse_acl(
 321         Backend *be,
 322         const char      *fname,
 323         int             lineno,
 324         int             argc,
 325         char            **argv,
 326         int             pos )
 327 {
 328         int             i;
 329         char            *left, *right, *style;
 330         struct berval   bv;
 331         AccessControl   *a = NULL;
 332         Access  *b = NULL;
 333         int rc;
 334         const char *text;
 335
 336         for ( i = 1; i < argc; i++ ) {
 337                 /* to clause - select which entries are protected */
 338                 if ( strcasecmp( argv[i], "to" ) == 0 ) {
 339                         if ( a != NULL ) {
 340                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 341                                         "only one to clause allowed in access line\n",
 342                                     fname, lineno, 0 );
 343                                 return acl_usage();
 344                         }
 345                         a = (AccessControl *) ch_calloc( 1, sizeof(AccessControl) );
 346                         for ( ++i; i < argc; i++ ) {
 347                                 if ( strcasecmp( argv[i], "by" ) == 0 ) {
 348                                         i--;
 349                                         break;
 350                                 }
 351
 352                                 if ( strcasecmp( argv[i], "*" ) == 0 ) {
 353                                         if ( !BER_BVISEMPTY( &a->acl_dn_pat ) ||
 354                                                 a->acl_dn_style != ACL_STYLE_REGEX )
 355                                         {
 356                                                 Debug( LDAP_DEBUG_ANY,
 357                                                         "%s: line %d: dn pattern"
 358                                                         " already specified in to clause.\n",
 359                                                         fname, lineno, 0 );
 360                                                 goto fail;
 361                                         }
 362
 363                                         ber_str2bv( "*", STRLENOF( "*" ), 1, &a->acl_dn_pat );
 364                                         continue;
 365                                 }
 366
 367                                 split( argv[i], '=', &left, &right );
 368                                 split( left, '.', &left, &style );
 369
 370                                 if ( right == NULL ) {
 371                                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 372                                                 "missing \"=\" in \"%s\" in to clause\n",
 373                                             fname, lineno, left );
 374                                         goto fail;
 375                                 }
 376
 377                                 if ( strcasecmp( left, "dn" ) == 0 ) {
 378                                         if ( !BER_BVISEMPTY( &a->acl_dn_pat ) ||
 379                                                 a->acl_dn_style != ACL_STYLE_REGEX )
 380                                         {
 381                                                 Debug( LDAP_DEBUG_ANY,
 382                                                         "%s: line %d: dn pattern"
 383                                                         " already specified in to clause.\n",
 384                                                         fname, lineno, 0 );
 385                                                 goto fail;
 386                                         }
 387
 388                                         if ( style == NULL || *style == '\0' ||
 389                                                 strcasecmp( style, "baseObject" ) == 0 ||
 390                                                 strcasecmp( style, "base" ) == 0 ||
 391                                                 strcasecmp( style, "exact" ) == 0 )
 392                                         {
 393                                                 a->acl_dn_style = ACL_STYLE_BASE;
 394                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 395
 396                                         } else if ( strcasecmp( style, "oneLevel" ) == 0 ||
 397                                                 strcasecmp( style, "one" ) == 0 )
 398                                         {
 399                                                 a->acl_dn_style = ACL_STYLE_ONE;
 400                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 401
 402                                         } else if ( strcasecmp( style, "subtree" ) == 0 ||
 403                                                 strcasecmp( style, "sub" ) == 0 )
 404                                         {
 405                                                 if( *right == '\0' ) {
 406                                                         ber_str2bv( "*", STRLENOF( "*" ), 1, &a->acl_dn_pat );
 407
 408                                                 } else {
 409                                                         a->acl_dn_style = ACL_STYLE_SUBTREE;
 410                                                         ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 411                                                 }
 412
 413                                         } else if ( strcasecmp( style, "children" ) == 0 ) {
 414                                                 a->acl_dn_style = ACL_STYLE_CHILDREN;
 415                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 416
 417                                         } else if ( strcasecmp( style, "regex" ) == 0 ) {
 418                                                 a->acl_dn_style = ACL_STYLE_REGEX;
 419
 420                                                 if ( *right == '\0' ) {
 421                                                         /* empty regex should match empty DN */
 422                                                         a->acl_dn_style = ACL_STYLE_BASE;
 423                                                         ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 424
 425                                                 } else if ( strcmp(right, "*") == 0
 426                                                         || strcmp(right, ".*") == 0
 427                                                         || strcmp(right, ".*$") == 0
 428                                                         || strcmp(right, "^.*") == 0
 429                                                         || strcmp(right, "^.*$") == 0
 430                                                         || strcmp(right, ".*$$") == 0
 431                                                         || strcmp(right, "^.*$$") == 0 )
 432                                                 {
 433                                                         ber_str2bv( "*", STRLENOF("*"), 1, &a->acl_dn_pat );
 434
 435                                                 } else {
 436                                                         acl_regex_normalized_dn( right, &a->acl_dn_pat );
 437                                                 }
 438
 439                                         } else {
 440                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 441                                                         "unknown dn style \"%s\" in to clause\n",
 442                                                     fname, lineno, style );
 443                                                 goto fail;
 444                                         }
 445
 446                                         continue;
 447                                 }
 448
 449                                 if ( strcasecmp( left, "filter" ) == 0 ) {
 450                                         if ( (a->acl_filter = str2filter( right )) == NULL ) {
 451                                                 Debug( LDAP_DEBUG_ANY,
 452                                 "%s: line %d: bad filter \"%s\" in to clause\n",
 453                                                     fname, lineno, right );
 454                                                 goto fail;
 455                                         }
 456
 457                                 } else if ( strcasecmp( left, "attr" ) == 0             /* TOLERATED */
 458                                                 || strcasecmp( left, "attrs" ) == 0 )   /* DOCUMENTED */
 459                                 {
 460                                         if ( strcasecmp( left, "attr" ) == 0 ) {
 461                                                 Debug( LDAP_DEBUG_ANY,
 462                                                         "%s: line %d: \"attr\" "
 463                                                         "is deprecated (and undocumented); "
 464                                                         "use \"attrs\" instead.\n",
 465                                                         fname, lineno, 0 );
 466                                         }
 467
 468                                         a->acl_attrs = str2anlist( a->acl_attrs,
 469                                                 right, "," );
 470                                         if ( a->acl_attrs == NULL ) {
 471                                                 Debug( LDAP_DEBUG_ANY,
 472                                 "%s: line %d: unknown attr \"%s\" in to clause\n",
 473                                                     fname, lineno, right );
 474                                                 goto fail;
 475                                         }
 476
 477                                 } else if ( strncasecmp( left, "val", 3 ) == 0 ) {
 478                                         struct berval   bv;
 479                                         char            *mr;
 480
 481                                         if ( !BER_BVISEMPTY( &a->acl_attrval ) ) {
 482                                                 Debug( LDAP_DEBUG_ANY,
 483                                 "%s: line %d: attr val already specified in to clause.\n",
 484                                                         fname, lineno, 0 );
 485                                                 goto fail;
 486                                         }
 487                                         if ( a->acl_attrs == NULL || !BER_BVISEMPTY( &a->acl_attrs[1].an_name ) )
 488                                         {
 489                                                 Debug( LDAP_DEBUG_ANY,
 490                                 "%s: line %d: attr val requires a single attribute.\n",
 491                                                         fname, lineno, 0 );
 492                                                 goto fail;
 493                                         }
 494
 495                                         ber_str2bv( right, 0, 0, &bv );
 496                                         a->acl_attrval_style = ACL_STYLE_BASE;
 497
 498                                         mr = strchr( left, '/' );
 499                                         if ( mr != NULL ) {
 500                                                 mr[ 0 ] = '\0';
 501                                                 mr++;
 502
 503                                                 a->acl_attrval_mr = mr_find( mr );
 504                                                 if ( a->acl_attrval_mr == NULL ) {
 505                                                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 506                                                                 "invalid matching rule \"%s\".\n",
 507                                                                 fname, lineno, mr );
 508                                                         goto fail;
 509                                                 }
 510
 511                                                 if( !mr_usable_with_at( a->acl_attrval_mr, a->acl_attrs[ 0 ].an_desc->ad_type ) )
 512                                                 {
 513                                                         char    buf[ SLAP_TEXT_BUFLEN ];
 514
 515                                                         snprintf( buf, sizeof( buf ),
 516                                                                 "matching rule \"%s\" use "
 517                                                                 "with attr \"%s\" not appropriate.",
 518                                                                 mr, a->acl_attrs[ 0 ].an_name.bv_val );
 519
 520
 521                                                         Debug( LDAP_DEBUG_ANY, "%s: line %d: %s\n",
 522                                                                 fname, lineno, buf );
 523                                                         goto fail;
 524                                                 }
 525                                         }
 526
 527                                         if ( style != NULL ) {
 528                                                 if ( strcasecmp( style, "regex" ) == 0 ) {
 529                                                         int e = regcomp( &a->acl_attrval_re, bv.bv_val,
 530                                                                 REG_EXTENDED | REG_ICASE | REG_NOSUB );
 531                                                         if ( e ) {
 532                                                                 char    err[SLAP_TEXT_BUFLEN],
 533                                                                         buf[ SLAP_TEXT_BUFLEN ];
 534
 535                                                                 regerror( e, &a->acl_attrval_re, err, sizeof( err ) );
 536
 537                                                                 snprintf( buf, sizeof( buf ),
 538                                                                         "regular expression \"%s\" bad because of %s",
 539                                                                         right, err );
 540
 541                                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: %s\n",
 542                                                                         fname, lineno, buf );
 543                                                                 goto fail;
 544                                                         }
 545                                                         a->acl_attrval_style = ACL_STYLE_REGEX;
 546
 547                                                 } else {
 548                                                         /* FIXME: if the attribute has DN syntax, we might
 549                                                          * allow one, subtree and children styles as well */
 550                                                         if ( !strcasecmp( style, "base" ) ||
 551                                                                 !strcasecmp( style, "exact" ) ) {
 552                                                                 a->acl_attrval_style = ACL_STYLE_BASE;
 553
 554                                                         } else if ( a->acl_attrs[0].an_desc->ad_type->
 555                                                                 sat_syntax == slap_schema.si_syn_distinguishedName )
 556                                                         {
 557                                                                 if ( !strcasecmp( style, "baseObject" ) ||
 558                                                                         !strcasecmp( style, "base" ) )
 559                                                                 {
 560                                                                         a->acl_attrval_style = ACL_STYLE_BASE;
 561                                                                 } else if ( !strcasecmp( style, "onelevel" ) ||
 562                                                                         !strcasecmp( style, "one" ) )
 563                                                                 {
 564                                                                         a->acl_attrval_style = ACL_STYLE_ONE;
 565                                                                 } else if ( !strcasecmp( style, "subtree" ) ||
 566                                                                         !strcasecmp( style, "sub" ) )
 567                                                                 {
 568                                                                         a->acl_attrval_style = ACL_STYLE_SUBTREE;
 569                                                                 } else if ( !strcasecmp( style, "children" ) ) {
 570                                                                         a->acl_attrval_style = ACL_STYLE_CHILDREN;
 571                                                                 } else {
 572                                                                         char    buf[ SLAP_TEXT_BUFLEN ];
 573
 574                                                                         snprintf( buf, sizeof( buf ),
 575                                                                                 "unknown val.<style> \"%s\" for attributeType \"%s\" "
 576                                                                                         "with DN syntax.",
 577                                                                                 style,
 578                                                                                 a->acl_attrs[0].an_desc->ad_cname.bv_val );
 579
 580                                                                         Debug( LDAP_DEBUG_CONFIG | LDAP_DEBUG_ACL,
 581                                                                                 "%s: line %d: %s\n",
 582                                                                                 fname, lineno, buf );
 583                                                                         goto fail;
 584                                                                 }
 585
 586                                                                 rc = dnNormalize( 0, NULL, NULL, &bv, &a->acl_attrval, NULL );
 587                                                                 if ( rc != LDAP_SUCCESS ) {
 588                                                                         char    buf[ SLAP_TEXT_BUFLEN ];
 589
 590                                                                         snprintf( buf, sizeof( buf ),
 591                                                                                 "unable to normalize DN \"%s\" "
 592                                                                                 "for attributeType \"%s\" (%d).",
 593                                                                                 bv.bv_val,
 594                                                                                 a->acl_attrs[0].an_desc->ad_cname.bv_val,
 595                                                                                 rc );
 596                                                                         Debug( LDAP_DEBUG_ANY,
 597                                                                                 "%s: line %d: %s\n",
 598                                                                                 fname, lineno, buf );
 599                                                                         goto fail;
 600                                                                 }
 601
 602                                                         } else {
 603                                                                 char    buf[ SLAP_TEXT_BUFLEN ];
 604
 605                                                                 snprintf( buf, sizeof( buf ),
 606                                                                         "unknown val.<style> \"%s\" for attributeType \"%s\".",
 607                                                                         style, a->acl_attrs[0].an_desc->ad_cname.bv_val );
 608                                                                 Debug( LDAP_DEBUG_CONFIG | LDAP_DEBUG_ACL,
 609                                                                         "%s: line %d: %s\n",
 610                                                                         fname, lineno, buf );
 611                                                                 goto fail;
 612                                                         }
 613                                                 }
 614                                         }
 615
 616                                         /* Check for appropriate matching rule */
 617                                         if ( a->acl_attrval_style == ACL_STYLE_REGEX ) {
 618                                                 ber_dupbv( &a->acl_attrval, &bv );
 619
 620                                         } else if ( BER_BVISNULL( &a->acl_attrval ) ) {
 621                                                 int             rc;
 622                                                 const char      *text;
 623
 624                                                 if ( a->acl_attrval_mr == NULL ) {
 625                                                         a->acl_attrval_mr = a->acl_attrs[ 0 ].an_desc->ad_type->sat_equality;
 626                                                 }
 627
 628                                                 if ( a->acl_attrval_mr == NULL ) {
 629                                                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 630                                                                 "attr \"%s\" does not have an EQUALITY matching rule.\n",
 631                                                                 fname, lineno, a->acl_attrs[ 0 ].an_name.bv_val );
 632                                                         goto fail;
 633                                                 }
 634
 635                                                 rc = asserted_value_validate_normalize(
 636                                                         a->acl_attrs[ 0 ].an_desc,
 637                                                         a->acl_attrval_mr,
 638                                                         SLAP_MR_EQUALITY|SLAP_MR_VALUE_OF_ASSERTION_SYNTAX,
 639                                                         &bv,
 640                                                         &a->acl_attrval,
 641                                                         &text,
 642                                                         NULL );
 643                                                 if ( rc != LDAP_SUCCESS ) {
 644                                                         char    buf[ SLAP_TEXT_BUFLEN ];
 645
 646                                                         snprintf( buf, sizeof( buf ), "%s: line %d: "
 647                                                                 " attr \"%s\" normalization failed (%d: %s)",
 648                                                                 a->acl_attrs[ 0 ].an_name.bv_val, rc, text );
 649                                                         Debug( LDAP_DEBUG_ANY, "%s: line %d: %s.\n",
 650                                                                 fname, lineno, buf );
 651                                                         goto fail;
 652                                                 }
 653                                         }
 654
 655                                 } else {
 656                                         Debug( LDAP_DEBUG_ANY,
 657                                                 "%s: line %d: expecting <what> got \"%s\"\n",
 658                                             fname, lineno, left );
 659                                         goto fail;
 660                                 }
 661                         }
 662
 663                         if ( !BER_BVISNULL( &a->acl_dn_pat ) &&
 664                                         ber_bvccmp( &a->acl_dn_pat, '*' ) )
 665                         {
 666                                 free( a->acl_dn_pat.bv_val );
 667                                 BER_BVZERO( &a->acl_dn_pat );
 668                                 a->acl_dn_style = ACL_STYLE_REGEX;
 669                         }
 670
 671                         if ( !BER_BVISEMPTY( &a->acl_dn_pat ) ||
 672                                         a->acl_dn_style != ACL_STYLE_REGEX )
 673                         {
 674                                 if ( a->acl_dn_style != ACL_STYLE_REGEX ) {
 675                                         struct berval bv;
 676                                         rc = dnNormalize( 0, NULL, NULL, &a->acl_dn_pat, &bv, NULL);
 677                                         if ( rc != LDAP_SUCCESS ) {
 678                                                 Debug( LDAP_DEBUG_ANY,
 679                                                         "%s: line %d: bad DN \"%s\" in to DN clause\n",
 680                                                         fname, lineno, a->acl_dn_pat.bv_val );
 681                                                 goto fail;
 682                                         }
 683                                         free( a->acl_dn_pat.bv_val );
 684                                         a->acl_dn_pat = bv;
 685
 686                                 } else {
 687                                         int e = regcomp( &a->acl_dn_re, a->acl_dn_pat.bv_val,
 688                                                 REG_EXTENDED | REG_ICASE );
 689                                         if ( e ) {
 690                                                 char    err[ SLAP_TEXT_BUFLEN ],
 691                                                         buf[ SLAP_TEXT_BUFLEN ];
 692
 693                                                 regerror( e, &a->acl_dn_re, err, sizeof( err ) );
 694                                                 snprintf( buf, sizeof( buf ),
 695                                                         "regular expression \"%s\" bad because of %s",
 696                                                         right, err );
 697                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: %s\n",
 698                                                         fname, lineno, buf );
 699                                                 goto fail;
 700                                         }
 701                                 }
 702                         }
 703
 704                 /* by clause - select who has what access to entries */
 705                 } else if ( strcasecmp( argv[i], "by" ) == 0 ) {
 706                         if ( a == NULL ) {
 707                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 708                                         "to clause required before by clause in access line\n",
 709                                         fname, lineno, 0 );
 710                                 goto fail;
 711                         }
 712
 713                         /*
 714                          * by clause consists of <who> and <access>
 715                          */
 716
 717                         if ( ++i == argc ) {
 718                                 Debug( LDAP_DEBUG_ANY,
 719                                         "%s: line %d: premature EOL: expecting <who>\n",
 720                                         fname, lineno, 0 );
 721                                 goto fail;
 722                         }
 723
 724                         b = (Access *) ch_calloc( 1, sizeof(Access) );
 725
 726                         ACL_INVALIDATE( b->a_access_mask );
 727
 728                         /* get <who> */
 729                         for ( ; i < argc; i++ ) {
 730                                 slap_style_t    sty = ACL_STYLE_REGEX;
 731                                 char            *style_modifier = NULL;
 732                                 char            *style_level = NULL;
 733                                 int             level = 0;
 734                                 int             expand = 0;
 735                                 slap_dn_access  *bdn = &b->a_dn;
 736                                 int             is_realdn = 0;
 737
 738                                 split( argv[i], '=', &left, &right );
 739                                 split( left, '.', &left, &style );
 740                                 if ( style ) {
 741                                         split( style, ',', &style, &style_modifier );
 742
 743                                         if ( strncasecmp( style, "level", STRLENOF( "level" ) ) == 0 ) {
 744                                                 split( style, '{', &style, &style_level );
 745                                                 if ( style_level != NULL ) {
 746                                                         char *p = strchr( style_level, '}' );
 747                                                         if ( p == NULL ) {
 748                                                                 Debug( LDAP_DEBUG_ANY,
 749                                                                         "%s: line %d: premature eol: "
 750                                                                         "expecting closing '}' in \"level{n}\"\n",
 751                                                                         fname, lineno, 0 );
 752                                                                 goto fail;
 753                                                         } else if ( p == style_level ) {
 754                                                                 Debug( LDAP_DEBUG_ANY,
 755                                                                         "%s: line %d: empty level "
 756                                                                         "in \"level{n}\"\n",
 757                                                                         fname, lineno, 0 );
 758                                                                 return acl_usage();
 759                                                         }
 760                                                         p[0] = '\0';
 761                                                 }
 762                                         }
 763                                 }
 764
 765                                 if ( style == NULL || *style == '\0' ||
 766                                         strcasecmp( style, "exact" ) == 0 ||
 767                                         strcasecmp( style, "baseObject" ) == 0 ||
 768                                         strcasecmp( style, "base" ) == 0 )
 769                                 {
 770                                         sty = ACL_STYLE_BASE;
 771
 772                                 } else if ( strcasecmp( style, "onelevel" ) == 0 ||
 773                                         strcasecmp( style, "one" ) == 0 )
 774                                 {
 775                                         sty = ACL_STYLE_ONE;
 776
 777                                 } else if ( strcasecmp( style, "subtree" ) == 0 ||
 778                                         strcasecmp( style, "sub" ) == 0 )
 779                                 {
 780                                         sty = ACL_STYLE_SUBTREE;
 781
 782                                 } else if ( strcasecmp( style, "children" ) == 0 ) {
 783                                         sty = ACL_STYLE_CHILDREN;
 784
 785                                 } else if ( strcasecmp( style, "level" ) == 0 )
 786                                 {
 787                                         if ( lutil_atoi( &level, style_level ) != 0 ) {
 788                                                 Debug( LDAP_DEBUG_ANY,
 789                                                         "%s: line %d: unable to parse level "
 790                                                         "in \"level{n}\"\n",
 791                                                         fname, lineno, 0 );
 792                                                 goto fail;
 793                                         }
 794
 795                                         sty = ACL_STYLE_LEVEL;
 796
 797                                 } else if ( strcasecmp( style, "regex" ) == 0 ) {
 798                                         sty = ACL_STYLE_REGEX;
 799
 800                                 } else if ( strcasecmp( style, "expand" ) == 0 ) {
 801                                         sty = ACL_STYLE_EXPAND;
 802
 803                                 } else if ( strcasecmp( style, "ip" ) == 0 ) {
 804                                         sty = ACL_STYLE_IP;
 805
 806                                 } else if ( strcasecmp( style, "path" ) == 0 ) {
 807                                         sty = ACL_STYLE_PATH;
 808 #ifndef LDAP_PF_LOCAL
 809                                         Debug( LDAP_DEBUG_CONFIG | LDAP_DEBUG_ACL,
 810                                                 "%s: line %d: "
 811                                                 "\"path\" style modifier is useless without local.\n",
 812                                                 fname, lineno, 0 );
 813                                         goto fail;
 814 #endif /* LDAP_PF_LOCAL */
 815
 816                                 } else {
 817                                         Debug( LDAP_DEBUG_ANY,
 818                                                 "%s: line %d: unknown style \"%s\" in by clause\n",
 819                                                 fname, lineno, style );
 820                                         goto fail;
 821                                 }
 822
 823                                 if ( style_modifier &&
 824                                         strcasecmp( style_modifier, "expand" ) == 0 )
 825                                 {
 826                                         switch ( sty ) {
 827                                         case ACL_STYLE_REGEX:
 828                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 829                                                         "\"regex\" style implies \"expand\" modifier.\n",
 830                                                         fname, lineno, 0 );
 831                                                 goto fail;
 832                                                 break;
 833
 834                                         case ACL_STYLE_EXPAND:
 835                                                 break;
 836
 837                                         default:
 838                                                 /* we'll see later if it's pertinent */
 839                                                 expand = 1;
 840                                                 break;
 841                                         }
 842                                 }
 843
 844                                 /* expand in <who> needs regex in <what> */
 845                                 if ( ( sty == ACL_STYLE_EXPAND || expand )
 846                                                 && a->acl_dn_style != ACL_STYLE_REGEX )
 847                                 {
 848                                         Debug( LDAP_DEBUG_CONFIG | LDAP_DEBUG_ACL, "%s: line %d: \"expand\" style "
 849                                                 "or modifier used in conjunction with a non-regex <what> clause.\n",
 850                                                 fname, lineno, 0 );
 851                                                 goto fail;
 852                                 }
 853
 854                                 if ( strncasecmp( left, "real", STRLENOF( "real" ) ) == 0 ) {
 855                                         is_realdn = 1;
 856                                         bdn = &b->a_realdn;
 857                                         left += STRLENOF( "real" );
 858                                 }
 859
 860                                 if ( strcasecmp( left, "*" ) == 0 ) {
 861                                         if ( is_realdn ) {
 862                                                 goto fail;
 863                                         }
 864
 865                                         ber_str2bv( "*", STRLENOF( "*" ), 1, &bv );
 866                                         sty = ACL_STYLE_REGEX;
 867
 868                                 } else if ( strcasecmp( left, "anonymous" ) == 0 ) {
 869                                         ber_str2bv("anonymous", STRLENOF( "anonymous" ), 1, &bv);
 870                                         sty = ACL_STYLE_ANONYMOUS;
 871
 872                                 } else if ( strcasecmp( left, "users" ) == 0 ) {
 873                                         ber_str2bv("users", STRLENOF( "users" ), 1, &bv);
 874                                         sty = ACL_STYLE_USERS;
 875
 876                                 } else if ( strcasecmp( left, "self" ) == 0 ) {
 877                                         ber_str2bv("self", STRLENOF( "self" ), 1, &bv);
 878                                         sty = ACL_STYLE_SELF;
 879
 880                                 } else if ( strcasecmp( left, "dn" ) == 0 ) {
 881                                         if ( sty == ACL_STYLE_REGEX ) {
 882                                                 bdn->a_style = ACL_STYLE_REGEX;
 883                                                 if ( right == NULL ) {
 884                                                         /* no '=' */
 885                                                         ber_str2bv("users",
 886                                                                 STRLENOF( "users" ),
 887                                                                 1, &bv);
 888                                                         bdn->a_style = ACL_STYLE_USERS;
 889
 890                                                 } else if (*right == '\0' ) {
 891                                                         /* dn="" */
 892                                                         ber_str2bv("anonymous",
 893                                                                 STRLENOF( "anonymous" ),
 894                                                                 1, &bv);
 895                                                         bdn->a_style = ACL_STYLE_ANONYMOUS;
 896
 897                                                 } else if ( strcmp( right, "*" ) == 0 ) {
 898                                                         /* dn=* */
 899                                                         /* any or users?  users for now */
 900                                                         ber_str2bv("users",
 901                                                                 STRLENOF( "users" ),
 902                                                                 1, &bv);
 903                                                         bdn->a_style = ACL_STYLE_USERS;
 904
 905                                                 } else if ( strcmp( right, ".+" ) == 0
 906                                                         || strcmp( right, "^.+" ) == 0
 907                                                         || strcmp( right, ".+$" ) == 0
 908                                                         || strcmp( right, "^.+$" ) == 0
 909                                                         || strcmp( right, ".+$$" ) == 0
 910                                                         || strcmp( right, "^.+$$" ) == 0 )
 911                                                 {
 912                                                         ber_str2bv("users",
 913                                                                 STRLENOF( "users" ),
 914                                                                 1, &bv);
 915                                                         bdn->a_style = ACL_STYLE_USERS;
 916
 917                                                 } else if ( strcmp( right, ".*" ) == 0
 918                                                         || strcmp( right, "^.*" ) == 0
 919                                                         || strcmp( right, ".*$" ) == 0
 920                                                         || strcmp( right, "^.*$" ) == 0
 921                                                         || strcmp( right, ".*$$" ) == 0
 922                                                         || strcmp( right, "^.*$$" ) == 0 )
 923                                                 {
 924                                                         ber_str2bv("*",
 925                                                                 STRLENOF( "*" ),
 926                                                                 1, &bv);
 927
 928                                                 } else {
 929                                                         acl_regex_normalized_dn( right, &bv );
 930                                                         if ( !ber_bvccmp( &bv, '*' ) ) {
 931                                                                 regtest( fname, lineno, bv.bv_val );
 932                                                         }
 933                                                 }
 934
 935                                         } else if ( right == NULL || *right == '\0' ) {
 936                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 937                                                         "missing \"=\" in (or value after) \"%s\" "
 938                                                         "in by clause\n",
 939                                                         fname, lineno, left );
 940                                                 goto fail;
 941
 942                                         } else {
 943                                                 ber_str2bv( right, 0, 1, &bv );
 944                                         }
 945
 946                                 } else {
 947                                         BER_BVZERO( &bv );
 948                                 }
 949
 950                                 if ( !BER_BVISNULL( &bv ) ) {
 951                                         if ( !BER_BVISEMPTY( &bdn->a_pat ) ) {
 952                                                 Debug( LDAP_DEBUG_ANY,
 953                                                         "%s: line %d: dn pattern already specified.\n",
 954                                                         fname, lineno, 0 );
 955                                                 goto fail;
 956                                         }
 957
 958                                         if ( sty != ACL_STYLE_REGEX &&
 959                                                         sty != ACL_STYLE_ANONYMOUS &&
 960                                                         sty != ACL_STYLE_USERS &&
 961                                                         sty != ACL_STYLE_SELF &&
 962                                                         expand == 0 )
 963                                         {
 964                                                 rc = dnNormalize(0, NULL, NULL,
 965                                                         &bv, &bdn->a_pat, NULL);
 966                                                 if ( rc != LDAP_SUCCESS ) {
 967                                                         Debug( LDAP_DEBUG_ANY,
 968                                                                 "%s: line %d: bad DN \"%s\" in by DN clause\n",
 969                                                                 fname, lineno, bv.bv_val );
 970                                                         goto fail;
 971                                                 }
 972                                                 free( bv.bv_val );
 973                                                 if ( sty == ACL_STYLE_BASE
 974                                                         && be != NULL
 975                                                         && !BER_BVISNULL( &be->be_rootndn )
 976                                                         && dn_match( &bdn->a_pat, &be->be_rootndn ) )
 977                                                 {
 978                                                         Debug( LDAP_DEBUG_ANY,
 979                                                                 "%s: line %d: rootdn is always granted "
 980                                                                 "unlimited privileges.\n",
 981                                                                 fname, lineno, 0 );
 982                                                 }
 983
 984                                         } else {
 985                                                 bdn->a_pat = bv;
 986                                         }
 987                                         bdn->a_style = sty;
 988                                         if ( expand ) {
 989                                                 char    *exp;
 990                                                 int     gotit = 0;
 991
 992                                                 for ( exp = strchr( bdn->a_pat.bv_val, '$' );
 993                                                         exp && (ber_len_t)(exp - bdn->a_pat.bv_val)
 994                                                                 < bdn->a_pat.bv_len;
 995                                                         exp = strchr( exp, '$' ) )
 996                                                 {
 997                                                         if ( isdigit( (unsigned char) exp[ 1 ] ) ) {
 998                                                                 gotit = 1;
 999                                                                 break;
1000                                                         }
1001                                                 }
1002
1003                                                 if ( gotit == 1 ) {
1004                                                         bdn->a_expand = expand;
1005
1006                                                 } else {
1007                                                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1008                                                                 "\"expand\" used with no expansions in \"pattern\".\n",
1009                                                                 fname, lineno, 0 );
1010                                                         goto fail;
1011                                                 }
1012                                         }
1013                                         if ( sty == ACL_STYLE_SELF ) {
1014                                                 bdn->a_self_level = level;
1015
1016                                         } else {
1017                                                 if ( level < 0 ) {
1018                                                         Debug( LDAP_DEBUG_ANY,
1019                                                                 "%s: line %d: bad negative level \"%d\" "
1020                                                                 "in by DN clause\n",
1021                                                                 fname, lineno, level );
1022                                                         goto fail;
1023                                                 } else if ( level == 1 ) {
1024                                                         Debug( LDAP_DEBUG_ANY,
1025                                                                 "%s: line %d: \"onelevel\" should be used "
1026                                                                 "instead of \"level{1}\" in by DN clause\n",
1027                                                                 fname, lineno, 0 );
1028                                                 } else if ( level == 0 && sty == ACL_STYLE_LEVEL ) {
1029                                                         Debug( LDAP_DEBUG_ANY,
1030                                                                 "%s: line %d: \"base\" should be used "
1031                                                                 "instead of \"level{0}\" in by DN clause\n",
1032                                                                 fname, lineno, 0 );
1033                                                 }
1034
1035                                                 bdn->a_level = level;
1036                                         }
1037                                         continue;
1038                                 }
1039
1040                                 if ( strcasecmp( left, "dnattr" ) == 0 ) {
1041                                         if ( right == NULL || right[0] == '\0' ) {
1042                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1043                                                         "missing \"=\" in (or value after) \"%s\" "
1044                                                         "in by clause\n",
1045                                                         fname, lineno, left );
1046                                                 goto fail;
1047                                         }
1048
1049                                         if( bdn->a_at != NULL ) {
1050                                                 Debug( LDAP_DEBUG_ANY,
1051                                                         "%s: line %d: dnattr already specified.\n",
1052                                                         fname, lineno, 0 );
1053                                                 goto fail;
1054                                         }
1055
1056                                         rc = slap_str2ad( right, &bdn->a_at, &text );
1057
1058                                         if( rc != LDAP_SUCCESS ) {
1059                                                 char    buf[ SLAP_TEXT_BUFLEN ];
1060
1061                                                 snprintf( buf, sizeof( buf ),
1062                                                         "dnattr \"%s\": %s",
1063                                                         right, text );
1064                                                 Debug( LDAP_DEBUG_ANY,
1065                                                         "%s: line %d: %s\n",
1066                                                         fname, lineno, buf );
1067                                                 goto fail;
1068                                         }
1069
1070
1071                                         if( !is_at_syntax( bdn->a_at->ad_type,
1072                                                 SLAPD_DN_SYNTAX ) &&
1073                                                 !is_at_syntax( bdn->a_at->ad_type,
1074                                                 SLAPD_NAMEUID_SYNTAX ))
1075                                         {
1076                                                 char    buf[ SLAP_TEXT_BUFLEN ];
1077
1078                                                 snprintf( buf, sizeof( buf ),
1079                                                         "dnattr \"%s\": "
1080                                                         "inappropriate syntax: %s\n",
1081                                                         right,
1082                                                         bdn->a_at->ad_type->sat_syntax_oid );
1083                                                 Debug( LDAP_DEBUG_ANY,
1084                                                         "%s: line %d: %s\n",
1085                                                         fname, lineno, buf );
1086                                                 goto fail;
1087                                         }
1088
1089                                         if( bdn->a_at->ad_type->sat_equality == NULL ) {
1090                                                 Debug( LDAP_DEBUG_ANY,
1091                                                         "%s: line %d: dnattr \"%s\": "
1092                                                         "inappropriate matching (no EQUALITY)\n",
1093                                                         fname, lineno, right );
1094                                                 goto fail;
1095                                         }
1096
1097                                         continue;
1098                                 }
1099
1100                                 if ( strncasecmp( left, "group", STRLENOF( "group" ) ) == 0 ) {
1101                                         char *name = NULL;
1102                                         char *value = NULL;
1103
1104                                         switch ( sty ) {
1105                                         case ACL_STYLE_REGEX:
1106                                                 /* legacy, tolerated */
1107                                                 Debug( LDAP_DEBUG_CONFIG | LDAP_DEBUG_ACL,
1108                                                         "%s: line %d: "
1109                                                         "deprecated group style \"regex\"; "
1110                                                         "use \"expand\" instead.\n",
1111                                                         fname, lineno, 0 );
1112                                                 sty = ACL_STYLE_EXPAND;
1113                                                 break;
1114
1115                                         case ACL_STYLE_BASE:
1116                                                 /* legal, traditional */
1117                                         case ACL_STYLE_EXPAND:
1118                                                 /* legal, substring expansion; supersedes regex */
1119                                                 break;
1120
1121                                         default:
1122                                                 /* unknown */
1123                                                 Debug( LDAP_DEBUG_ANY,
1124                                                         "%s: line %d: "
1125                                                         "inappropriate style \"%s\" in by clause.\n",
1126                                                         fname, lineno, style );
1127                                                 goto fail;
1128                                         }
1129
1130                                         if ( right == NULL || right[0] == '\0' ) {
1131                                                 Debug( LDAP_DEBUG_ANY,
1132                                                         "%s: line %d: "
1133                                                         "missing \"=\" in (or value after) \"%s\" "
1134                                                         "in by clause.\n",
1135                                                         fname, lineno, left );
1136                                                 goto fail;
1137                                         }
1138
1139                                         if ( !BER_BVISEMPTY( &b->a_group_pat ) ) {
1140                                                 Debug( LDAP_DEBUG_ANY,
1141                                                         "%s: line %d: group pattern already specified.\n",
1142                                                         fname, lineno, 0 );
1143                                                 goto fail;
1144                                         }
1145
1146                                         /* format of string is
1147                                                 "group/objectClassValue/groupAttrName" */
1148                                         if ( ( value = strchr(left, '/') ) != NULL ) {
1149                                                 *value++ = '\0';
1150                                                 if ( *value && ( name = strchr( value, '/' ) ) != NULL ) {
1151                                                         *name++ = '\0';
1152                                                 }
1153                                         }
1154
1155                                         b->a_group_style = sty;
1156                                         if ( sty == ACL_STYLE_EXPAND ) {
1157                                                 acl_regex_normalized_dn( right, &bv );
1158                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
1159                                                         regtest( fname, lineno, bv.bv_val );
1160                                                 }
1161                                                 b->a_group_pat = bv;
1162
1163                                         } else {
1164                                                 ber_str2bv( right, 0, 0, &bv );
1165                                                 rc = dnNormalize( 0, NULL, NULL, &bv,
1166                                                         &b->a_group_pat, NULL );
1167                                                 if ( rc != LDAP_SUCCESS ) {
1168                                                         Debug( LDAP_DEBUG_ANY,
1169                                                                 "%s: line %d: bad DN \"%s\".\n",
1170                                                                 fname, lineno, right );
1171                                                         goto fail;
1172                                                 }
1173                                         }
1174
1175                                         if ( value && *value ) {
1176                                                 b->a_group_oc = oc_find( value );
1177                                                 *--value = '/';
1178
1179                                                 if ( b->a_group_oc == NULL ) {
1180                                                         Debug( LDAP_DEBUG_ANY,
1181                                                                 "%s: line %d: group objectclass "
1182                                                                 "\"%s\" unknown.\n",
1183                                                                 fname, lineno, value );
1184                                                         goto fail;
1185                                                 }
1186
1187                                         } else {
1188                                                 b->a_group_oc = oc_find( SLAPD_GROUP_CLASS );
1189
1190                                                 if( b->a_group_oc == NULL ) {
1191                                                         Debug( LDAP_DEBUG_ANY,
1192                                                                 "%s: line %d: group default objectclass "
1193                                                                 "\"%s\" unknown.\n",
1194                                                                 fname, lineno, SLAPD_GROUP_CLASS );
1195                                                         goto fail;
1196                                                 }
1197                                         }
1198
1199                                         if ( is_object_subclass( slap_schema.si_oc_referral,
1200                                                 b->a_group_oc ) )
1201                                         {
1202                                                 Debug( LDAP_DEBUG_ANY,
1203                                                         "%s: line %d: group objectclass \"%s\" "
1204                                                         "is subclass of referral.\n",
1205                                                         fname, lineno, value );
1206                                                 goto fail;
1207                                         }
1208
1209                                         if ( is_object_subclass( slap_schema.si_oc_alias,
1210                                                 b->a_group_oc ) )
1211                                         {
1212                                                 Debug( LDAP_DEBUG_ANY,
1213                                                         "%s: line %d: group objectclass \"%s\" "
1214                                                         "is subclass of alias.\n",
1215                                                         fname, lineno, value );
1216                                                 goto fail;
1217                                         }
1218
1219                                         if ( name && *name ) {
1220                                                 rc = slap_str2ad( name, &b->a_group_at, &text );
1221
1222                                                 if( rc != LDAP_SUCCESS ) {
1223                                                         char    buf[ SLAP_TEXT_BUFLEN ];
1224
1225                                                         snprintf( buf, sizeof( buf ),
1226                                                                 "group \"%s\": %s.",
1227                                                                 right, text );
1228                                                         Debug( LDAP_DEBUG_ANY,
1229                                                                 "%s: line %d: %s\n",
1230                                                                 fname, lineno, buf );
1231                                                         goto fail;
1232                                                 }
1233                                                 *--name = '/';
1234
1235                                         } else {
1236                                                 rc = slap_str2ad( SLAPD_GROUP_ATTR, &b->a_group_at, &text );
1237
1238                                                 if ( rc != LDAP_SUCCESS ) {
1239                                                         char    buf[ SLAP_TEXT_BUFLEN ];
1240
1241                                                         snprintf( buf, sizeof( buf ),
1242                                                                 "group \"%s\": %s.",
1243                                                                 SLAPD_GROUP_ATTR, text );
1244                                                         Debug( LDAP_DEBUG_ANY,
1245                                                                 "%s: line %d: %s\n",
1246                                                                 fname, lineno, buf );
1247                                                         goto fail;
1248                                                 }
1249                                         }
1250
1251                                         if ( !is_at_syntax( b->a_group_at->ad_type,
1252                                                 SLAPD_DN_SYNTAX ) &&
1253                                                 !is_at_syntax( b->a_group_at->ad_type,
1254                                                 SLAPD_NAMEUID_SYNTAX ) &&
1255                                                 !is_at_subtype( b->a_group_at->ad_type, slap_schema.si_ad_labeledURI->ad_type ) )
1256                                         {
1257                                                 char    buf[ SLAP_TEXT_BUFLEN ];
1258
1259                                                 snprintf( buf, sizeof( buf ),
1260                                                         "group \"%s\": inappropriate syntax: %s.",
1261                                                         right,
1262                                                         b->a_group_at->ad_type->sat_syntax_oid );
1263                                                 Debug( LDAP_DEBUG_ANY,
1264                                                         "%s: line %d: %s\n",
1265                                                         fname, lineno, buf );
1266                                                 goto fail;
1267                                         }
1268
1269
1270                                         {
1271                                                 int rc;
1272                                                 struct berval vals[2];
1273
1274                                                 ber_str2bv( b->a_group_oc->soc_oid, 0, 0, &vals[0] );
1275                                                 BER_BVZERO( &vals[1] );
1276
1277                                                 rc = oc_check_allowed( b->a_group_at->ad_type,
1278                                                         vals, NULL );
1279
1280                                                 if( rc != 0 ) {
1281                                                         char    buf[ SLAP_TEXT_BUFLEN ];
1282
1283                                                         snprintf( buf, sizeof( buf ),
1284                                                                 "group: \"%s\" not allowed by \"%s\".",
1285                                                                 b->a_group_at->ad_cname.bv_val,
1286                                                                 b->a_group_oc->soc_oid );
1287                                                         Debug( LDAP_DEBUG_ANY, "%s: line %d: %s\n",
1288                                                                 fname, lineno, buf );
1289                                                         goto fail;
1290                                                 }
1291                                         }
1292                                         continue;
1293                                 }
1294
1295                                 if ( strcasecmp( left, "peername" ) == 0 ) {
1296                                         switch ( sty ) {
1297                                         case ACL_STYLE_REGEX:
1298                                         case ACL_STYLE_BASE:
1299                                                 /* legal, traditional */
1300                                         case ACL_STYLE_EXPAND:
1301                                                 /* cheap replacement to regex for simple expansion */
1302                                         case ACL_STYLE_IP:
1303                                         case ACL_STYLE_PATH:
1304                                                 /* legal, peername specific */
1305                                                 break;
1306
1307                                         default:
1308                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1309                                                         "inappropriate style \"%s\" in by clause.\n",
1310                                                     fname, lineno, style );
1311                                                 goto fail;
1312                                         }
1313
1314                                         if ( right == NULL || right[0] == '\0' ) {
1315                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1316                                                         "missing \"=\" in (or value after) \"%s\" "
1317                                                         "in by clause.\n",
1318                                                         fname, lineno, left );
1319                                                 goto fail;
1320                                         }
1321
1322                                         if ( !BER_BVISEMPTY( &b->a_peername_pat ) ) {
1323                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1324                                                         "peername pattern already specified.\n",
1325                                                         fname, lineno, 0 );
1326                                                 goto fail;
1327                                         }
1328
1329                                         b->a_peername_style = sty;
1330                                         if ( sty == ACL_STYLE_REGEX ) {
1331                                                 acl_regex_normalized_dn( right, &bv );
1332                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
1333                                                         regtest( fname, lineno, bv.bv_val );
1334                                                 }
1335                                                 b->a_peername_pat = bv;
1336
1337                                         } else {
1338                                                 ber_str2bv( right, 0, 1, &b->a_peername_pat );
1339
1340                                                 if ( sty == ACL_STYLE_IP ) {
1341                                                         char            *addr = NULL,
1342                                                                         *mask = NULL,
1343                                                                         *port = NULL;
1344
1345                                                         split( right, '{', &addr, &port );
1346                                                         split( addr, '%', &addr, &mask );
1347
1348                                                         b->a_peername_addr = inet_addr( addr );
1349                                                         if ( b->a_peername_addr == (unsigned long)(-1) ) {
1350                                                                 /* illegal address */
1351                                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1352                                                                         "illegal peername address \"%s\".\n",
1353                                                                         fname, lineno, addr );
1354                                                                 goto fail;
1355                                                         }
1356
1357                                                         b->a_peername_mask = (unsigned long)(-1);
1358                                                         if ( mask != NULL ) {
1359                                                                 b->a_peername_mask = inet_addr( mask );
1360                                                                 if ( b->a_peername_mask ==
1361                                                                         (unsigned long)(-1) )
1362                                                                 {
1363                                                                         /* illegal mask */
1364                                                                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1365                                                                                 "illegal peername address mask "
1366                                                                                 "\"%s\".\n",
1367                                                                                 fname, lineno, mask );
1368                                                                         goto fail;
1369                                                                 }
1370                                                         }
1371
1372                                                         b->a_peername_port = -1;
1373                                                         if ( port ) {
1374                                                                 char    *end = NULL;
1375
1376                                                                 b->a_peername_port = strtol( port, &end, 10 );
1377                                                                 if ( end == port || end[0] != '}' ) {
1378                                                                         /* illegal port */
1379                                                                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1380                                                                                 "illegal peername port specification "
1381                                                                                 "\"{%s}\".\n",
1382                                                                                 fname, lineno, port );
1383                                                                         goto fail;
1384                                                                 }
1385                                                         }
1386                                                 }
1387                                         }
1388                                         continue;
1389                                 }
1390
1391                                 if ( strcasecmp( left, "sockname" ) == 0 ) {
1392                                         switch ( sty ) {
1393                                         case ACL_STYLE_REGEX:
1394                                         case ACL_STYLE_BASE:
1395                                                 /* legal, traditional */
1396                                         case ACL_STYLE_EXPAND:
1397                                                 /* cheap replacement to regex for simple expansion */
1398                                                 break;
1399
1400                                         default:
1401                                                 /* unknown */
1402                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1403                                                         "inappropriate style \"%s\" in by clause\n",
1404                                                     fname, lineno, style );
1405                                                 goto fail;
1406                                         }
1407
1408                                         if ( right == NULL || right[0] == '\0' ) {
1409                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1410                                                         "missing \"=\" in (or value after) \"%s\" "
1411                                                         "in by clause\n",
1412                                                         fname, lineno, left );
1413                                                 goto fail;
1414                                         }
1415
1416                                         if ( !BER_BVISNULL( &b->a_sockname_pat ) ) {
1417                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1418                                                         "sockname pattern already specified.\n",
1419                                                         fname, lineno, 0 );
1420                                                 goto fail;
1421                                         }
1422
1423                                         b->a_sockname_style = sty;
1424                                         if ( sty == ACL_STYLE_REGEX ) {
1425                                                 acl_regex_normalized_dn( right, &bv );
1426                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
1427                                                         regtest( fname, lineno, bv.bv_val );
1428                                                 }
1429                                                 b->a_sockname_pat = bv;
1430
1431                                         } else {
1432                                                 ber_str2bv( right, 0, 1, &b->a_sockname_pat );
1433                                         }
1434                                         continue;
1435                                 }
1436
1437                                 if ( strcasecmp( left, "domain" ) == 0 ) {
1438                                         switch ( sty ) {
1439                                         case ACL_STYLE_REGEX:
1440                                         case ACL_STYLE_BASE:
1441                                         case ACL_STYLE_SUBTREE:
1442                                                 /* legal, traditional */
1443                                                 break;
1444
1445                                         case ACL_STYLE_EXPAND:
1446                                                 /* tolerated: means exact,expand */
1447                                                 if ( expand ) {
1448                                                         Debug( LDAP_DEBUG_ANY,
1449                                                                 "%s: line %d: "
1450                                                                 "\"expand\" modifier "
1451                                                                 "with \"expand\" style.\n",
1452                                                                 fname, lineno, 0 );
1453                                                 }
1454                                                 sty = ACL_STYLE_BASE;
1455                                                 expand = 1;
1456                                                 break;
1457
1458                                         default:
1459                                                 /* unknown */
1460                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1461                                                         "inappropriate style \"%s\" in by clause.\n",
1462                                                     fname, lineno, style );
1463                                                 goto fail;
1464                                         }
1465
1466                                         if ( right == NULL || right[0] == '\0' ) {
1467                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1468                                                         "missing \"=\" in (or value after) \"%s\" "
1469                                                         "in by clause.\n",
1470                                                         fname, lineno, left );
1471                                                 goto fail;
1472                                         }
1473
1474                                         if ( !BER_BVISEMPTY( &b->a_domain_pat ) ) {
1475                                                 Debug( LDAP_DEBUG_ANY,
1476                                                         "%s: line %d: domain pattern already specified.\n",
1477                                                         fname, lineno, 0 );
1478                                                 goto fail;
1479                                         }
1480
1481                                         b->a_domain_style = sty;
1482                                         b->a_domain_expand = expand;
1483                                         if ( sty == ACL_STYLE_REGEX ) {
1484                                                 acl_regex_normalized_dn( right, &bv );
1485                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
1486                                                         regtest( fname, lineno, bv.bv_val );
1487                                                 }
1488                                                 b->a_domain_pat = bv;
1489
1490                                         } else {
1491                                                 ber_str2bv( right, 0, 1, &b->a_domain_pat );
1492                                         }
1493                                         continue;
1494                                 }
1495
1496                                 if ( strcasecmp( left, "sockurl" ) == 0 ) {
1497                                         switch ( sty ) {
1498                                         case ACL_STYLE_REGEX:
1499                                         case ACL_STYLE_BASE:
1500                                                 /* legal, traditional */
1501                                         case ACL_STYLE_EXPAND:
1502                                                 /* cheap replacement to regex for simple expansion */
1503                                                 break;
1504
1505                                         default:
1506                                                 /* unknown */
1507                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1508                                                         "inappropriate style \"%s\" in by clause.\n",
1509                                                     fname, lineno, style );
1510                                                 goto fail;
1511                                         }
1512
1513                                         if ( right == NULL || right[0] == '\0' ) {
1514                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1515                                                         "missing \"=\" in (or value after) \"%s\" "
1516                                                         "in by clause.\n",
1517                                                         fname, lineno, left );
1518                                                 goto fail;
1519                                         }
1520
1521                                         if ( !BER_BVISEMPTY( &b->a_sockurl_pat ) ) {
1522                                                 Debug( LDAP_DEBUG_ANY,
1523                                                         "%s: line %d: sockurl pattern already specified.\n",
1524                                                         fname, lineno, 0 );
1525                                                 goto fail;
1526                                         }
1527
1528                                         b->a_sockurl_style = sty;
1529                                         if ( sty == ACL_STYLE_REGEX ) {
1530                                                 acl_regex_normalized_dn( right, &bv );
1531                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
1532                                                         regtest( fname, lineno, bv.bv_val );
1533                                                 }
1534                                                 b->a_sockurl_pat = bv;
1535
1536                                         } else {
1537                                                 ber_str2bv( right, 0, 1, &b->a_sockurl_pat );
1538                                         }
1539                                         continue;
1540                                 }
1541
1542                                 if ( strcasecmp( left, "set" ) == 0 ) {
1543                                         switch ( sty ) {
1544                                                 /* deprecated */
1545                                         case ACL_STYLE_REGEX:
1546                                                 Debug( LDAP_DEBUG_CONFIG | LDAP_DEBUG_ACL,
1547                                                         "%s: line %d: "
1548                                                         "deprecated set style "
1549                                                         "\"regex\" in <by> clause; "
1550                                                         "use \"expand\" instead.\n",
1551                                                         fname, lineno, 0 );
1552                                                 sty = ACL_STYLE_EXPAND;
1553                                                 /* FALLTHRU */
1554
1555                                         case ACL_STYLE_BASE:
1556                                         case ACL_STYLE_EXPAND:
1557                                                 break;
1558
1559                                         default:
1560                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1561                                                         "inappropriate style \"%s\" in by clause.\n",
1562                                                         fname, lineno, style );
1563                                                 goto fail;
1564                                         }
1565
1566                                         if ( !BER_BVISEMPTY( &b->a_set_pat ) ) {
1567                                                 Debug( LDAP_DEBUG_ANY,
1568                                                         "%s: line %d: set attribute already specified.\n",
1569                                                         fname, lineno, 0 );
1570                                                 goto fail;
1571                                         }
1572
1573                                         if ( right == NULL || *right == '\0' ) {
1574                                                 Debug( LDAP_DEBUG_ANY,
1575                                                         "%s: line %d: no set is defined.\n",
1576                                                         fname, lineno, 0 );
1577                                                 goto fail;
1578                                         }
1579
1580                                         b->a_set_style = sty;
1581                                         ber_str2bv( right, 0, 1, &b->a_set_pat );
1582
1583                                         continue;
1584                                 }
1585
1586 #ifdef SLAP_DYNACL
1587                                 {
1588                                         char            *name = NULL,
1589                                                         *opts = NULL;
1590
1591 #if 1 /* tolerate legacy "aci" <who> */
1592                                         if ( strcasecmp( left, "aci" ) == 0 ) {
1593                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1594                                                         "undocumented deprecated \"aci\" directive "
1595                                                         "is superseded by \"dynacl/aci\".\n",
1596                                                         fname, lineno, 0 );
1597                                                 name = "aci";
1598
1599                                         } else
1600 #endif /* tolerate legacy "aci" <who> */
1601                                         if ( strncasecmp( left, "dynacl/", STRLENOF( "dynacl/" ) ) == 0 ) {
1602                                                 name = &left[ STRLENOF( "dynacl/" ) ];
1603                                                 opts = strchr( name, '/' );
1604                                                 if ( opts ) {
1605                                                         opts[ 0 ] = '\0';
1606                                                         opts++;
1607                                                 }
1608                                         }
1609
1610                                         if ( name ) {
1611                                                 if ( slap_dynacl_config( fname, lineno, b, name, opts, sty, right ) ) {
1612                                                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1613                                                                 "unable to configure dynacl \"%s\".\n",
1614                                                                 fname, lineno, name );
1615                                                         goto fail;
1616                                                 }
1617
1618                                                 continue;
1619                                         }
1620                                 }
1621 #endif /* SLAP_DYNACL */
1622
1623                                 if ( strcasecmp( left, "ssf" ) == 0 ) {
1624                                         if ( sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE ) {
1625                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1626                                                         "inappropriate style \"%s\" in by clause.\n",
1627                                                     fname, lineno, style );
1628                                                 goto fail;
1629                                         }
1630
1631                                         if ( b->a_authz.sai_ssf ) {
1632                                                 Debug( LDAP_DEBUG_ANY,
1633                                                         "%s: line %d: ssf attribute already specified.\n",
1634                                                         fname, lineno, 0 );
1635                                                 goto fail;
1636                                         }
1637
1638                                         if ( right == NULL || *right == '\0' ) {
1639                                                 Debug( LDAP_DEBUG_ANY,
1640                                                         "%s: line %d: no ssf is defined.\n",
1641                                                         fname, lineno, 0 );
1642                                                 goto fail;
1643                                         }
1644
1645                                         if ( lutil_atou( &b->a_authz.sai_ssf, right ) != 0 ) {
1646                                                 Debug( LDAP_DEBUG_ANY,
1647                                                         "%s: line %d: unable to parse ssf value (%s).\n",
1648                                                         fname, lineno, right );
1649                                                 goto fail;
1650                                         }
1651
1652                                         if ( !b->a_authz.sai_ssf ) {
1653                                                 Debug( LDAP_DEBUG_ANY,
1654                                                         "%s: line %d: invalid ssf value (%s).\n",
1655                                                         fname, lineno, right );
1656                                                 goto fail;
1657                                         }
1658                                         continue;
1659                                 }
1660
1661                                 if ( strcasecmp( left, "transport_ssf" ) == 0 ) {
1662                                         if ( sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE ) {
1663                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1664                                                         "inappropriate style \"%s\" in by clause.\n",
1665                                                         fname, lineno, style );
1666                                                 goto fail;
1667                                         }
1668
1669                                         if ( b->a_authz.sai_transport_ssf ) {
1670                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1671                                                         "transport_ssf attribute already specified.\n",
1672                                                         fname, lineno, 0 );
1673                                                 goto fail;
1674                                         }
1675
1676                                         if ( right == NULL || *right == '\0' ) {
1677                                                 Debug( LDAP_DEBUG_ANY,
1678                                                         "%s: line %d: no transport_ssf is defined.\n",
1679                                                         fname, lineno, 0 );
1680                                                 goto fail;
1681                                         }
1682
1683                                         if ( lutil_atou( &b->a_authz.sai_transport_ssf, right ) != 0 ) {
1684                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1685                                                         "unable to parse transport_ssf value (%s).\n",
1686                                                         fname, lineno, right );
1687                                                 goto fail;
1688                                         }
1689
1690                                         if ( !b->a_authz.sai_transport_ssf ) {
1691                                                 Debug( LDAP_DEBUG_ANY,
1692                                                         "%s: line %d: invalid transport_ssf value (%s).\n",
1693                                                         fname, lineno, right );
1694                                                 goto fail;
1695                                         }
1696                                         continue;
1697                                 }
1698
1699                                 if ( strcasecmp( left, "tls_ssf" ) == 0 ) {
1700                                         if ( sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE ) {
1701                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1702                                                         "inappropriate style \"%s\" in by clause.\n",
1703                                                         fname, lineno, style );
1704                                                 goto fail;
1705                                         }
1706
1707                                         if ( b->a_authz.sai_tls_ssf ) {
1708                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1709                                                         "tls_ssf attribute already specified.\n",
1710                                                         fname, lineno, 0 );
1711                                                 goto fail;
1712                                         }
1713
1714                                         if ( right == NULL || *right == '\0' ) {
1715                                                 Debug( LDAP_DEBUG_ANY,
1716                                                         "%s: line %d: no tls_ssf is defined\n",
1717                                                         fname, lineno, 0 );
1718                                                 goto fail;
1719                                         }
1720
1721                                         if ( lutil_atou( &b->a_authz.sai_tls_ssf, right ) != 0 ) {
1722                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1723                                                         "unable to parse tls_ssf value (%s).\n",
1724                                                         fname, lineno, right );
1725                                                 goto fail;
1726                                         }
1727
1728                                         if ( !b->a_authz.sai_tls_ssf ) {
1729                                                 Debug( LDAP_DEBUG_ANY,
1730                                                         "%s: line %d: invalid tls_ssf value (%s).\n",
1731                                                         fname, lineno, right );
1732                                                 goto fail;
1733                                         }
1734                                         continue;
1735                                 }
1736
1737                                 if ( strcasecmp( left, "sasl_ssf" ) == 0 ) {
1738                                         if ( sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE ) {
1739                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1740                                                         "inappropriate style \"%s\" in by clause.\n",
1741                                                         fname, lineno, style );
1742                                                 goto fail;
1743                                         }
1744
1745                                         if ( b->a_authz.sai_sasl_ssf ) {
1746                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1747                                                         "sasl_ssf attribute already specified.\n",
1748                                                         fname, lineno, 0 );
1749                                                 goto fail;
1750                                         }
1751
1752                                         if ( right == NULL || *right == '\0' ) {
1753                                                 Debug( LDAP_DEBUG_ANY,
1754                                                         "%s: line %d: no sasl_ssf is defined.\n",
1755                                                         fname, lineno, 0 );
1756                                                 goto fail;
1757                                         }
1758
1759                                         if ( lutil_atou( &b->a_authz.sai_sasl_ssf, right ) != 0 ) {
1760                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1761                                                         "unable to parse sasl_ssf value (%s).\n",
1762                                                         fname, lineno, right );
1763                                                 goto fail;
1764                                         }
1765
1766                                         if ( !b->a_authz.sai_sasl_ssf ) {
1767                                                 Debug( LDAP_DEBUG_ANY,
1768                                                         "%s: line %d: invalid sasl_ssf value (%s).\n",
1769                                                         fname, lineno, right );
1770                                                 goto fail;
1771                                         }
1772                                         continue;
1773                                 }
1774
1775                                 if ( right != NULL ) {
1776                                         /* unsplit */
1777                                         right[-1] = '=';
1778                                 }
1779                                 break;
1780                         }
1781
1782                         if ( i == argc || ( strcasecmp( left, "stop" ) == 0 ) ) {
1783                                 /* out of arguments or plain stop */
1784
1785                                 ACL_PRIV_ASSIGN( b->a_access_mask, ACL_PRIV_ADDITIVE );
1786                                 b->a_type = ACL_STOP;
1787
1788                                 access_append( &a->acl_access, b );
1789                                 continue;
1790                         }
1791
1792                         if ( strcasecmp( left, "continue" ) == 0 ) {
1793                                 /* plain continue */
1794
1795                                 ACL_PRIV_ASSIGN( b->a_access_mask, ACL_PRIV_ADDITIVE );
1796                                 b->a_type = ACL_CONTINUE;
1797
1798                                 access_append( &a->acl_access, b );
1799                                 continue;
1800                         }
1801
1802                         if ( strcasecmp( left, "break" ) == 0 ) {
1803                                 /* plain continue */
1804
1805                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
1806                                 b->a_type = ACL_BREAK;
1807
1808                                 access_append( &a->acl_access, b );
1809                                 continue;
1810                         }
1811
1812                         if ( strcasecmp( left, "by" ) == 0 ) {
1813                                 /* we've gone too far */
1814                                 --i;
1815                                 ACL_PRIV_ASSIGN( b->a_access_mask, ACL_PRIV_ADDITIVE );
1816                                 b->a_type = ACL_STOP;
1817
1818                                 access_append( &a->acl_access, b );
1819                                 continue;
1820                         }
1821
1822                         /* get <access> */
1823                         if ( strncasecmp( left, "self", STRLENOF( "self" ) ) == 0 ) {
1824                                 b->a_dn_self = 1;
1825                                 ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( &left[ STRLENOF( "self" ) ] ) );
1826
1827                         } else if ( strncasecmp( left, "realself", STRLENOF( "realself" ) ) == 0 ) {
1828                                 b->a_realdn_self = 1;
1829                                 ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( &left[ STRLENOF( "realself" ) ] ) );
1830
1831                         } else {
1832                                 ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( left ) );
1833                         }
1834
1835                         if ( ACL_IS_INVALID( b->a_access_mask ) ) {
1836                                 Debug( LDAP_DEBUG_ANY,
1837                                         "%s: line %d: expecting <access> got \"%s\".\n",
1838                                         fname, lineno, left );
1839                                 goto fail;
1840                         }
1841
1842                         b->a_type = ACL_STOP;
1843
1844                         if ( ++i == argc ) {
1845                                 /* out of arguments or plain stop */
1846                                 access_append( &a->acl_access, b );
1847                                 continue;
1848                         }
1849
1850                         if ( strcasecmp( argv[i], "continue" ) == 0 ) {
1851                                 /* plain continue */
1852                                 b->a_type = ACL_CONTINUE;
1853
1854                         } else if ( strcasecmp( argv[i], "break" ) == 0 ) {
1855                                 /* plain continue */
1856                                 b->a_type = ACL_BREAK;
1857
1858                         } else if ( strcasecmp( argv[i], "stop" ) != 0 ) {
1859                                 /* gone to far */
1860                                 i--;
1861                         }
1862
1863                         access_append( &a->acl_access, b );
1864                         b = NULL;
1865
1866                 } else {
1867                         Debug( LDAP_DEBUG_ANY,
1868                                 "%s: line %d: expecting \"to\" "
1869                                 "or \"by\" got \"%s\"\n",
1870                                 fname, lineno, argv[i] );
1871                         goto fail;
1872                 }
1873         }
1874
1875         /* if we have no real access clause, complain and do nothing */
1876         if ( a == NULL ) {
1877                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1878                         "warning: no access clause(s) specified in access line.\n",
1879                         fname, lineno, 0 );
1880                 goto fail;
1881
1882         } else {
1883 #ifdef LDAP_DEBUG
1884                 if ( slap_debug & LDAP_DEBUG_ACL ) {
1885                         print_acl( be, a );
1886                 }
1887 #endif
1888
1889                 if ( a->acl_access == NULL ) {
1890                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1891                                 "warning: no by clause(s) specified in access line.\n",
1892                                 fname, lineno, 0 );
1893                         goto fail;
1894                 }
1895
1896                 if ( be != NULL ) {
1897                         if ( be->be_nsuffix == NULL ) {
1898                                 Debug( LDAP_DEBUG_ACL, "%s: line %d: warning: "
1899                                         "scope checking needs suffix before ACLs.\n",
1900                                         fname, lineno, 0 );
1901                                 /* go ahead, since checking is not authoritative */
1902                         } else if ( !BER_BVISNULL( &be->be_nsuffix[ 1 ] ) ) {
1903                                 Debug( LDAP_DEBUG_ACL, "%s: line %d: warning: "
1904                                         "scope checking only applies to single-valued "
1905                                         "suffix databases\n",
1906                                         fname, lineno, 0 );
1907                                 /* go ahead, since checking is not authoritative */
1908                         } else {
1909                                 switch ( check_scope( be, a ) ) {
1910                                 case ACL_SCOPE_UNKNOWN:
1911                                         Debug( LDAP_DEBUG_ACL, "%s: line %d: warning: "
1912                                                 "cannot assess the validity of the ACL scope within "
1913                                                 "backend naming context\n",
1914                                                 fname, lineno, 0 );
1915                                         break;
1916
1917                                 case ACL_SCOPE_WARN:
1918                                         Debug( LDAP_DEBUG_ACL, "%s: line %d: warning: "
1919                                                 "ACL could be out of scope within backend naming context\n",
1920                                                 fname, lineno, 0 );
1921                                         break;
1922
1923                                 case ACL_SCOPE_PARTIAL:
1924                                         Debug( LDAP_DEBUG_ACL, "%s: line %d: warning: "
1925                                                 "ACL appears to be partially out of scope within "
1926                                                 "backend naming context\n",
1927                                                 fname, lineno, 0 );
1928                                         break;
1929
1930                                 case ACL_SCOPE_ERR:
1931                                         Debug( LDAP_DEBUG_ACL, "%s: line %d: warning: "
1932                                                 "ACL appears to be out of scope within "
1933                                                 "backend naming context\n",
1934                                                 fname, lineno, 0 );
1935                                         break;
1936
1937                                 default:
1938                                         break;
1939                                 }
1940                         }
1941                         acl_append( &be->be_acl, a, pos );
1942
1943                 } else {
1944                         acl_append( &frontendDB->be_acl, a, pos );
1945                 }
1946         }
1947
1948         return 0;
1949
1950 fail:
1951         if ( b ) access_free( b );
1952         if ( a ) acl_free( a );
1953         return acl_usage();
1954 }
1955
1956 char *
1957 accessmask2str( slap_mask_t mask, char *buf, int debug )
1958 {
1959         int     none = 1;
1960         char    *ptr = buf;
1961
1962         assert( buf != NULL );
1963
1964         if ( ACL_IS_INVALID( mask ) ) {
1965                 return "invalid";
1966         }
1967
1968         buf[0] = '\0';
1969
1970         if ( ACL_IS_LEVEL( mask ) ) {
1971                 if ( ACL_LVL_IS_NONE(mask) ) {
1972                         ptr = lutil_strcopy( ptr, "none" );
1973
1974                 } else if ( ACL_LVL_IS_DISCLOSE(mask) ) {
1975                         ptr = lutil_strcopy( ptr, "disclose" );
1976
1977                 } else if ( ACL_LVL_IS_AUTH(mask) ) {
1978                         ptr = lutil_strcopy( ptr, "auth" );
1979
1980                 } else if ( ACL_LVL_IS_COMPARE(mask) ) {
1981                         ptr = lutil_strcopy( ptr, "compare" );
1982
1983                 } else if ( ACL_LVL_IS_SEARCH(mask) ) {
1984                         ptr = lutil_strcopy( ptr, "search" );
1985
1986                 } else if ( ACL_LVL_IS_READ(mask) ) {
1987                         ptr = lutil_strcopy( ptr, "read" );
1988
1989                 } else if ( ACL_LVL_IS_WRITE(mask) ) {
1990                         ptr = lutil_strcopy( ptr, "write" );
1991
1992                 } else if ( ACL_LVL_IS_WADD(mask) ) {
1993                         ptr = lutil_strcopy( ptr, "add" );
1994
1995                 } else if ( ACL_LVL_IS_WDEL(mask) ) {
1996                         ptr = lutil_strcopy( ptr, "delete" );
1997
1998                 } else if ( ACL_LVL_IS_MANAGE(mask) ) {
1999                         ptr = lutil_strcopy( ptr, "manage" );
2000
2001                 } else {
2002                         ptr = lutil_strcopy( ptr, "unknown" );
2003                 }
2004
2005                 if ( !debug ) {
2006                         *ptr = '\0';
2007                         return buf;
2008                 }
2009                 *ptr++ = '(';
2010         }
2011
2012         if( ACL_IS_ADDITIVE( mask ) ) {
2013                 *ptr++ = '+';
2014
2015         } else if( ACL_IS_SUBTRACTIVE( mask ) ) {
2016                 *ptr++ = '-';
2017
2018         } else {
2019                 *ptr++ = '=';
2020         }
2021
2022         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_MANAGE) ) {
2023                 none = 0;
2024                 *ptr++ = 'm';
2025         }
2026
2027         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_WRITE) ) {
2028                 none = 0;
2029                 *ptr++ = 'w';
2030
2031         } else if ( ACL_PRIV_ISSET(mask, ACL_PRIV_WADD) ) {
2032                 none = 0;
2033                 *ptr++ = 'a';
2034
2035         } else if ( ACL_PRIV_ISSET(mask, ACL_PRIV_WDEL) ) {
2036                 none = 0;
2037                 *ptr++ = 'z';
2038         }
2039
2040         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_READ) ) {
2041                 none = 0;
2042                 *ptr++ = 'r';
2043         }
2044
2045         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_SEARCH) ) {
2046                 none = 0;
2047                 *ptr++ = 's';
2048         }
2049
2050         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_COMPARE) ) {
2051                 none = 0;
2052                 *ptr++ = 'c';
2053         }
2054
2055         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_AUTH) ) {
2056                 none = 0;
2057                 *ptr++ = 'x';
2058         }
2059
2060         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_DISCLOSE) ) {
2061                 none = 0;
2062                 *ptr++ = 'd';
2063         }
2064
2065         if ( none && ACL_PRIV_ISSET(mask, ACL_PRIV_NONE) ) {
2066                 none = 0;
2067                 *ptr++ = '0';
2068         }
2069
2070         if ( none ) {
2071                 ptr = buf;
2072         }
2073
2074         if ( ACL_IS_LEVEL( mask ) ) {
2075                 *ptr++ = ')';
2076         }
2077
2078         *ptr = '\0';
2079
2080         return buf;
2081 }
2082
2083 slap_mask_t
2084 str2accessmask( const char *str )
2085 {
2086         slap_mask_t     mask;
2087
2088         if( !ASCII_ALPHA(str[0]) ) {
2089                 int i;
2090
2091                 if ( str[0] == '=' ) {
2092                         ACL_INIT(mask);
2093
2094                 } else if( str[0] == '+' ) {
2095                         ACL_PRIV_ASSIGN(mask, ACL_PRIV_ADDITIVE);
2096
2097                 } else if( str[0] == '-' ) {
2098                         ACL_PRIV_ASSIGN(mask, ACL_PRIV_SUBSTRACTIVE);
2099
2100                 } else {
2101                         ACL_INVALIDATE(mask);
2102                         return mask;
2103                 }
2104
2105                 for( i=1; str[i] != '\0'; i++ ) {
2106                         if( TOLOWER((unsigned char) str[i]) == 'm' ) {
2107                                 ACL_PRIV_SET(mask, ACL_PRIV_MANAGE);
2108
2109                         } else if( TOLOWER((unsigned char) str[i]) == 'w' ) {
2110                                 ACL_PRIV_SET(mask, ACL_PRIV_WRITE);
2111
2112                         } else if( TOLOWER((unsigned char) str[i]) == 'a' ) {
2113                                 ACL_PRIV_SET(mask, ACL_PRIV_WADD);
2114
2115                         } else if( TOLOWER((unsigned char) str[i]) == 'z' ) {
2116                                 ACL_PRIV_SET(mask, ACL_PRIV_WDEL);
2117
2118                         } else if( TOLOWER((unsigned char) str[i]) == 'r' ) {
2119                                 ACL_PRIV_SET(mask, ACL_PRIV_READ);
2120
2121                         } else if( TOLOWER((unsigned char) str[i]) == 's' ) {
2122                                 ACL_PRIV_SET(mask, ACL_PRIV_SEARCH);
2123
2124                         } else if( TOLOWER((unsigned char) str[i]) == 'c' ) {
2125                                 ACL_PRIV_SET(mask, ACL_PRIV_COMPARE);
2126
2127                         } else if( TOLOWER((unsigned char) str[i]) == 'x' ) {
2128                                 ACL_PRIV_SET(mask, ACL_PRIV_AUTH);
2129
2130                         } else if( TOLOWER((unsigned char) str[i]) == 'd' ) {
2131                                 ACL_PRIV_SET(mask, ACL_PRIV_DISCLOSE);
2132
2133                         } else if( str[i] != '0' ) {
2134                                 ACL_INVALIDATE(mask);
2135                                 return mask;
2136                         }
2137                 }
2138
2139                 return mask;
2140         }
2141
2142         if ( strcasecmp( str, "none" ) == 0 ) {
2143                 ACL_LVL_ASSIGN_NONE(mask);
2144
2145         } else if ( strcasecmp( str, "disclose" ) == 0 ) {
2146                 ACL_LVL_ASSIGN_DISCLOSE(mask);
2147
2148         } else if ( strcasecmp( str, "auth" ) == 0 ) {
2149                 ACL_LVL_ASSIGN_AUTH(mask);
2150
2151         } else if ( strcasecmp( str, "compare" ) == 0 ) {
2152                 ACL_LVL_ASSIGN_COMPARE(mask);
2153
2154         } else if ( strcasecmp( str, "search" ) == 0 ) {
2155                 ACL_LVL_ASSIGN_SEARCH(mask);
2156
2157         } else if ( strcasecmp( str, "read" ) == 0 ) {
2158                 ACL_LVL_ASSIGN_READ(mask);
2159
2160         } else if ( strcasecmp( str, "add" ) == 0 ) {
2161                 ACL_LVL_ASSIGN_WADD(mask);
2162
2163         } else if ( strcasecmp( str, "delete" ) == 0 ) {
2164                 ACL_LVL_ASSIGN_WDEL(mask);
2165
2166         } else if ( strcasecmp( str, "write" ) == 0 ) {
2167                 ACL_LVL_ASSIGN_WRITE(mask);
2168
2169         } else if ( strcasecmp( str, "manage" ) == 0 ) {
2170                 ACL_LVL_ASSIGN_MANAGE(mask);
2171
2172         } else {
2173                 ACL_INVALIDATE( mask );
2174         }
2175
2176         return mask;
2177 }
2178
2179 static int
2180 acl_usage( void )
2181 {
2182         char *access =
2183                 "<access clause> ::= access to <what> "
2184                                 "[ by <who> <access> [ <control> ] ]+ \n";
2185         char *what =
2186                 "<what> ::= * | [dn[.<dnstyle>]=<DN>] [filter=<filter>] [attrs=<attrspec>]\n"
2187                 "<attrspec> ::= <attrname> [val[/<matchingRule>][.<attrstyle>]=<value>] | <attrlist>\n"
2188                 "<attrlist> ::= <attr> [ , <attrlist> ]\n"
2189                 "<attr> ::= <attrname> | @<objectClass> | !<objectClass> | entry | children\n";
2190
2191         char *who =
2192                 "<who> ::= [ * | anonymous | users | self | dn[.<dnstyle>]=<DN> ]\n"
2193                         "\t[ realanonymous | realusers | realself | realdn[.<dnstyle>]=<DN> ]\n"
2194                         "\t[dnattr=<attrname>]\n"
2195                         "\t[realdnattr=<attrname>]\n"
2196                         "\t[group[/<objectclass>[/<attrname>]][.<style>]=<group>]\n"
2197                         "\t[peername[.<peernamestyle>]=<peer>] [sockname[.<style>]=<name>]\n"
2198                         "\t[domain[.<domainstyle>]=<domain>] [sockurl[.<style>]=<url>]\n"
2199 #ifdef SLAP_DYNACL
2200                         "\t[dynacl/<name>[/<options>][.<dynstyle>][=<pattern>]]\n"
2201 #endif /* SLAP_DYNACL */
2202                         "\t[ssf=<n>] [transport_ssf=<n>] [tls_ssf=<n>] [sasl_ssf=<n>]\n"
2203                 "<style> ::= exact | regex | base(Object)\n"
2204                 "<dnstyle> ::= base(Object) | one(level) | sub(tree) | children | "
2205                         "exact | regex\n"
2206                 "<attrstyle> ::= exact | regex | base(Object) | one(level) | "
2207                         "sub(tree) | children\n"
2208                 "<peernamestyle> ::= exact | regex | ip | path\n"
2209                 "<domainstyle> ::= exact | regex | base(Object) | sub(tree)\n"
2210                 "<access> ::= [[real]self]{<level>|<priv>}\n"
2211                 "<level> ::= none|disclose|auth|compare|search|read|{write|add|delete}|manage\n"
2212                 "<priv> ::= {=|+|-}{0|d|x|c|s|r|{w|a|z}|m}+\n"
2213                 "<control> ::= [ stop | continue | break ]\n"
2214 #ifdef SLAP_DYNACL
2215 #ifdef SLAPD_ACI_ENABLED
2216                 "dynacl:\n"
2217                 "\t<name>=ACI\t<pattern>=<attrname>\n"
2218 #endif /* SLAPD_ACI_ENABLED */
2219 #endif /* ! SLAP_DYNACL */
2220                 "";
2221
2222         Debug( LDAP_DEBUG_ANY, "%s%s%s\n", access, what, who );
2223
2224         return 1;
2225 }
2226
2227 /*
2228  * Set pattern to a "normalized" DN from src.
2229  * At present it simply eats the (optional) space after
2230  * a RDN separator (,)
2231  * Eventually will evolve in a more complete normalization
2232  */
2233 static void
2234 acl_regex_normalized_dn(
2235         const char *src,
2236         struct berval *pattern )
2237 {
2238         char *str, *p;
2239         ber_len_t len;
2240
2241         str = ch_strdup( src );
2242         len = strlen( src );
2243
2244         for ( p = str; p && p[0]; p++ ) {
2245                 /* escape */
2246                 if ( p[0] == '\\' && p[1] ) {
2247                         /*
2248                          * if escaping a hex pair we should
2249                          * increment p twice; however, in that
2250                          * case the second hex number does
2251                          * no harm
2252                          */
2253                         p++;
2254                 }
2255
2256                 if ( p[0] == ',' && p[1] == ' ' ) {
2257                         char *q;
2258
2259                         /*
2260                          * too much space should be an error if we are pedantic
2261                          */
2262                         for ( q = &p[2]; q[0] == ' '; q++ ) {
2263                                 /* DO NOTHING */ ;
2264                         }
2265                         AC_MEMCPY( p+1, q, len-(q-str)+1);
2266                 }
2267         }
2268         pattern->bv_val = str;
2269         pattern->bv_len = p - str;
2270
2271         return;
2272 }
2273
2274 static void
2275 split(
2276     char        *line,
2277     int         splitchar,
2278     char        **left,
2279     char        **right )
2280 {
2281         *left = line;
2282         if ( (*right = strchr( line, splitchar )) != NULL ) {
2283                 *((*right)++) = '\0';
2284         }
2285 }
2286
2287 static void
2288 access_append( Access **l, Access *a )
2289 {
2290         for ( ; *l != NULL; l = &(*l)->a_next ) {
2291                 ;       /* Empty */
2292         }
2293
2294         *l = a;
2295 }
2296
2297 void
2298 acl_append( AccessControl **l, AccessControl *a, int pos )
2299 {
2300         int i;
2301
2302         for (i=0 ; i != pos && *l != NULL; l = &(*l)->acl_next, i++ ) {
2303                 ;       /* Empty */
2304         }
2305         if ( *l && a )
2306                 a->acl_next = *l;
2307         *l = a;
2308 }
2309
2310 static void
2311 access_free( Access *a )
2312 {
2313         if ( !BER_BVISNULL( &a->a_dn_pat ) ) {
2314                 free( a->a_dn_pat.bv_val );
2315         }
2316         if ( !BER_BVISNULL( &a->a_realdn_pat ) ) {
2317                 free( a->a_realdn_pat.bv_val );
2318         }
2319         if ( !BER_BVISNULL( &a->a_peername_pat ) ) {
2320                 free( a->a_peername_pat.bv_val );
2321         }
2322         if ( !BER_BVISNULL( &a->a_sockname_pat ) ) {
2323                 free( a->a_sockname_pat.bv_val );
2324         }
2325         if ( !BER_BVISNULL( &a->a_domain_pat ) ) {
2326                 free( a->a_domain_pat.bv_val );
2327         }
2328         if ( !BER_BVISNULL( &a->a_sockurl_pat ) ) {
2329                 free( a->a_sockurl_pat.bv_val );
2330         }
2331         if ( !BER_BVISNULL( &a->a_set_pat ) ) {
2332                 free( a->a_set_pat.bv_val );
2333         }
2334         if ( !BER_BVISNULL( &a->a_group_pat ) ) {
2335                 free( a->a_group_pat.bv_val );
2336         }
2337 #ifdef SLAP_DYNACL
2338         if ( a->a_dynacl != NULL ) {
2339                 slap_dynacl_t   *da;
2340                 for ( da = a->a_dynacl; da; ) {
2341                         slap_dynacl_t   *tmp = da;
2342
2343                         da = da->da_next;
2344
2345                         if ( tmp->da_destroy ) {
2346                                 tmp->da_destroy( tmp->da_private );
2347                         }
2348
2349                         ch_free( tmp );
2350                 }
2351         }
2352 #endif /* SLAP_DYNACL */
2353         free( a );
2354 }
2355
2356 void
2357 acl_free( AccessControl *a )
2358 {
2359         Access *n;
2360         AttributeName *an;
2361
2362         if ( a->acl_filter ) {
2363                 filter_free( a->acl_filter );
2364         }
2365         if ( !BER_BVISNULL( &a->acl_dn_pat ) ) {
2366                 if ( a->acl_dn_style == ACL_STYLE_REGEX ) {
2367                         regfree( &a->acl_dn_re );
2368                 }
2369                 free ( a->acl_dn_pat.bv_val );
2370         }
2371         if ( a->acl_attrs ) {
2372                 for ( an = a->acl_attrs; !BER_BVISNULL( &an->an_name ); an++ ) {
2373                         free( an->an_name.bv_val );
2374                 }
2375                 free( a->acl_attrs );
2376
2377                 if ( a->acl_attrval_style == ACL_STYLE_REGEX ) {
2378                         regfree( &a->acl_attrval_re );
2379                 }
2380
2381                 if ( !BER_BVISNULL( &a->acl_attrval ) ) {
2382                         ber_memfree( a->acl_attrval.bv_val );
2383                 }
2384         }
2385         for ( ; a->acl_access; a->acl_access = n ) {
2386                 n = a->acl_access->a_next;
2387                 access_free( a->acl_access );
2388         }
2389         free( a );
2390 }
2391
2392 /* Because backend_startup uses acl_append to tack on the global_acl to
2393  * the end of each backend's acl, we cannot just take one argument and
2394  * merrily free our way to the end of the list. backend_destroy calls us
2395  * with the be_acl in arg1, and global_acl in arg2 to give us a stopping
2396  * point. config_destroy calls us with global_acl in arg1 and NULL in
2397  * arg2, so we then proceed to polish off the global_acl.
2398  */
2399 void
2400 acl_destroy( AccessControl *a, AccessControl *end )
2401 {
2402         AccessControl *n;
2403
2404         for ( ; a && a != end; a = n ) {
2405                 n = a->acl_next;
2406                 acl_free( a );
2407         }
2408 }
2409
2410 char *
2411 access2str( slap_access_t access )
2412 {
2413         if ( access == ACL_NONE ) {
2414                 return "none";
2415
2416         } else if ( access == ACL_DISCLOSE ) {
2417                 return "disclose";
2418
2419         } else if ( access == ACL_AUTH ) {
2420                 return "auth";
2421
2422         } else if ( access == ACL_COMPARE ) {
2423                 return "compare";
2424
2425         } else if ( access == ACL_SEARCH ) {
2426                 return "search";
2427
2428         } else if ( access == ACL_READ ) {
2429                 return "read";
2430
2431         } else if ( access == ACL_WRITE ) {
2432                 return "write";
2433
2434         } else if ( access == ACL_WADD ) {
2435                 return "add";
2436
2437         } else if ( access == ACL_WDEL ) {
2438                 return "delete";
2439
2440         } else if ( access == ACL_MANAGE ) {
2441                 return "manage";
2442
2443         }
2444
2445         return "unknown";
2446 }
2447
2448 slap_access_t
2449 str2access( const char *str )
2450 {
2451         if ( strcasecmp( str, "none" ) == 0 ) {
2452                 return ACL_NONE;
2453
2454         } else if ( strcasecmp( str, "disclose" ) == 0 ) {
2455 #ifndef SLAP_ACL_HONOR_DISCLOSE
2456                 Debug( LDAP_DEBUG_ACL, "str2access: warning, "
2457                         "\"disclose\" privilege disabled.\n",
2458                 0, 0, 0 );
2459 #endif /* SLAP_ACL_HONOR_DISCLOSE */
2460                 return ACL_DISCLOSE;
2461
2462         } else if ( strcasecmp( str, "auth" ) == 0 ) {
2463                 return ACL_AUTH;
2464
2465         } else if ( strcasecmp( str, "compare" ) == 0 ) {
2466                 return ACL_COMPARE;
2467
2468         } else if ( strcasecmp( str, "search" ) == 0 ) {
2469                 return ACL_SEARCH;
2470
2471         } else if ( strcasecmp( str, "read" ) == 0 ) {
2472                 return ACL_READ;
2473
2474         } else if ( strcasecmp( str, "write" ) == 0 ) {
2475                 return ACL_WRITE;
2476
2477         } else if ( strcasecmp( str, "add" ) == 0 ) {
2478                 return ACL_WADD;
2479
2480         } else if ( strcasecmp( str, "delete" ) == 0 ) {
2481                 return ACL_WDEL;
2482
2483         } else if ( strcasecmp( str, "manage" ) == 0 ) {
2484                 return ACL_MANAGE;
2485         }
2486
2487         return( ACL_INVALID_ACCESS );
2488 }
2489
2490 #define ACLBUF_MAXLEN   8192
2491
2492 static char aclbuf[ACLBUF_MAXLEN];
2493
2494 static char *
2495 dnaccess2text( slap_dn_access *bdn, char *ptr, int is_realdn )
2496 {
2497         *ptr++ = ' ';
2498
2499         if ( is_realdn ) {
2500                 ptr = lutil_strcopy( ptr, "real" );
2501         }
2502
2503         if ( ber_bvccmp( &bdn->a_pat, '*' ) ||
2504                 bdn->a_style == ACL_STYLE_ANONYMOUS ||
2505                 bdn->a_style == ACL_STYLE_USERS ||
2506                 bdn->a_style == ACL_STYLE_SELF )
2507         {
2508                 if ( is_realdn ) {
2509                         assert( ! ber_bvccmp( &bdn->a_pat, '*' ) );
2510                 }
2511
2512                 ptr = lutil_strcopy( ptr, bdn->a_pat.bv_val );
2513                 if ( bdn->a_style == ACL_STYLE_SELF && bdn->a_self_level != 0 ) {
2514                         int n = sprintf( ptr, ".level{%d}", bdn->a_self_level );
2515                         if ( n > 0 ) {
2516                                 ptr += n;
2517                         } /* else ? */
2518                 }
2519
2520         } else {
2521                 ptr = lutil_strcopy( ptr, "dn." );
2522                 if ( bdn->a_style == ACL_STYLE_BASE )
2523                         ptr = lutil_strcopy( ptr, style_base );
2524                 else
2525                         ptr = lutil_strcopy( ptr, style_strings[bdn->a_style] );
2526                 if ( bdn->a_style == ACL_STYLE_LEVEL ) {
2527                         int n = sprintf( ptr, "{%d}", bdn->a_level );
2528                         if ( n > 0 ) {
2529                                 ptr += n;
2530                         } /* else ? */
2531                 }
2532                 if ( bdn->a_expand ) {
2533                         ptr = lutil_strcopy( ptr, ",expand" );
2534                 }
2535                 *ptr++ = '=';
2536                 *ptr++ = '"';
2537                 ptr = lutil_strcopy( ptr, bdn->a_pat.bv_val );
2538                 *ptr++ = '"';
2539         }
2540         return ptr;
2541 }
2542
2543 static char *
2544 access2text( Access *b, char *ptr )
2545 {
2546         char maskbuf[ACCESSMASK_MAXLEN];
2547
2548         ptr = lutil_strcopy( ptr, "\tby" );
2549
2550         if ( !BER_BVISEMPTY( &b->a_dn_pat ) ) {
2551                 ptr = dnaccess2text( &b->a_dn, ptr, 0 );
2552         }
2553         if ( b->a_dn_at ) {
2554                 ptr = lutil_strcopy( ptr, " dnattr=" );
2555                 ptr = lutil_strcopy( ptr, b->a_dn_at->ad_cname.bv_val );
2556         }
2557
2558         if ( !BER_BVISEMPTY( &b->a_realdn_pat ) ) {
2559                 ptr = dnaccess2text( &b->a_realdn, ptr, 1 );
2560         }
2561         if ( b->a_realdn_at ) {
2562                 ptr = lutil_strcopy( ptr, " realdnattr=" );
2563                 ptr = lutil_strcopy( ptr, b->a_realdn_at->ad_cname.bv_val );
2564         }
2565
2566         if ( !BER_BVISEMPTY( &b->a_group_pat ) ) {
2567                 ptr = lutil_strcopy( ptr, " group/" );
2568                 ptr = lutil_strcopy( ptr, b->a_group_oc ?
2569                         b->a_group_oc->soc_cname.bv_val : SLAPD_GROUP_CLASS );
2570                 *ptr++ = '/';
2571                 ptr = lutil_strcopy( ptr, b->a_group_at ?
2572                         b->a_group_at->ad_cname.bv_val : SLAPD_GROUP_ATTR );
2573                 *ptr++ = '.';
2574                 ptr = lutil_strcopy( ptr, style_strings[b->a_group_style] );
2575                 *ptr++ = '=';
2576                 *ptr++ = '"';
2577                 ptr = lutil_strcopy( ptr, b->a_group_pat.bv_val );
2578                 *ptr++ = '"';
2579         }
2580
2581         if ( !BER_BVISEMPTY( &b->a_peername_pat ) ) {
2582                 ptr = lutil_strcopy( ptr, " peername" );
2583                 *ptr++ = '.';
2584                 ptr = lutil_strcopy( ptr, style_strings[b->a_peername_style] );
2585                 *ptr++ = '=';
2586                 *ptr++ = '"';
2587                 ptr = lutil_strcopy( ptr, b->a_peername_pat.bv_val );
2588                 *ptr++ = '"';
2589         }
2590
2591         if ( !BER_BVISEMPTY( &b->a_sockname_pat ) ) {
2592                 ptr = lutil_strcopy( ptr, " sockname" );
2593                 *ptr++ = '.';
2594                 ptr = lutil_strcopy( ptr, style_strings[b->a_sockname_style] );
2595                 *ptr++ = '=';
2596                 *ptr++ = '"';
2597                 ptr = lutil_strcopy( ptr, b->a_sockname_pat.bv_val );
2598                 *ptr++ = '"';
2599         }
2600
2601         if ( !BER_BVISEMPTY( &b->a_domain_pat ) ) {
2602                 ptr = lutil_strcopy( ptr, " domain" );
2603                 *ptr++ = '.';
2604                 ptr = lutil_strcopy( ptr, style_strings[b->a_domain_style] );
2605                 if ( b->a_domain_expand ) {
2606                         ptr = lutil_strcopy( ptr, ",expand" );
2607                 }
2608                 *ptr++ = '=';
2609                 ptr = lutil_strcopy( ptr, b->a_domain_pat.bv_val );
2610         }
2611
2612         if ( !BER_BVISEMPTY( &b->a_sockurl_pat ) ) {
2613                 ptr = lutil_strcopy( ptr, " sockurl" );
2614                 *ptr++ = '.';
2615                 ptr = lutil_strcopy( ptr, style_strings[b->a_sockurl_style] );
2616                 *ptr++ = '=';
2617                 *ptr++ = '"';
2618                 ptr = lutil_strcopy( ptr, b->a_sockurl_pat.bv_val );
2619                 *ptr++ = '"';
2620         }
2621
2622         if ( !BER_BVISEMPTY( &b->a_set_pat ) ) {
2623                 ptr = lutil_strcopy( ptr, " set" );
2624                 *ptr++ = '.';
2625                 ptr = lutil_strcopy( ptr, style_strings[b->a_set_style] );
2626                 *ptr++ = '=';
2627                 *ptr++ = '"';
2628                 ptr = lutil_strcopy( ptr, b->a_set_pat.bv_val );
2629                 *ptr++ = '"';
2630         }
2631
2632 #ifdef SLAP_DYNACL
2633         if ( b->a_dynacl ) {
2634                 slap_dynacl_t   *da;
2635
2636                 for ( da = b->a_dynacl; da; da = da->da_next ) {
2637                         if ( da->da_unparse ) {
2638                                 struct berval bv = BER_BVNULL;
2639                                 (void)( *da->da_unparse )( da->da_private, &bv );
2640                                 assert( !BER_BVISNULL( &bv ) );
2641                                 ptr = lutil_strcopy( ptr, bv.bv_val );
2642                                 ch_free( bv.bv_val );
2643                         }
2644                 }
2645         }
2646 #endif /* SLAP_DYNACL */
2647
2648         /* Security Strength Factors */
2649         if ( b->a_authz.sai_ssf ) {
2650                 ptr += sprintf( ptr, " ssf=%u",
2651                         b->a_authz.sai_ssf );
2652         }
2653         if ( b->a_authz.sai_transport_ssf ) {
2654                 ptr += sprintf( ptr, " transport_ssf=%u",
2655                         b->a_authz.sai_transport_ssf );
2656         }
2657         if ( b->a_authz.sai_tls_ssf ) {
2658                 ptr += sprintf( ptr, " tls_ssf=%u",
2659                         b->a_authz.sai_tls_ssf );
2660         }
2661         if ( b->a_authz.sai_sasl_ssf ) {
2662                 ptr += sprintf( ptr, " sasl_ssf=%u",
2663                         b->a_authz.sai_sasl_ssf );
2664         }
2665
2666         *ptr++ = ' ';
2667         if ( b->a_dn_self ) {
2668                 ptr = lutil_strcopy( ptr, "self" );
2669         } else if ( b->a_realdn_self ) {
2670                 ptr = lutil_strcopy( ptr, "realself" );
2671         }
2672         ptr = lutil_strcopy( ptr, accessmask2str( b->a_access_mask, maskbuf, 0 ));
2673         if ( !maskbuf[0] ) ptr--;
2674
2675         if( b->a_type == ACL_BREAK ) {
2676                 ptr = lutil_strcopy( ptr, " break" );
2677
2678         } else if( b->a_type == ACL_CONTINUE ) {
2679                 ptr = lutil_strcopy( ptr, " continue" );
2680
2681         } else if( b->a_type != ACL_STOP ) {
2682                 ptr = lutil_strcopy( ptr, " unknown-control" );
2683         } else {
2684                 if ( !maskbuf[0] ) ptr = lutil_strcopy( ptr, " stop" );
2685         }
2686         *ptr++ = '\n';
2687
2688         return ptr;
2689 }
2690
2691 void
2692 acl_unparse( AccessControl *a, struct berval *bv )
2693 {
2694         Access  *b;
2695         char    *ptr;
2696         int     to = 0;
2697
2698         bv->bv_val = aclbuf;
2699         bv->bv_len = 0;
2700
2701         ptr = bv->bv_val;
2702
2703         ptr = lutil_strcopy( ptr, "to" );
2704         if ( !BER_BVISNULL( &a->acl_dn_pat ) ) {
2705                 to++;
2706                 ptr = lutil_strcopy( ptr, " dn." );
2707                 if ( a->acl_dn_style == ACL_STYLE_BASE )
2708                         ptr = lutil_strcopy( ptr, style_base );
2709                 else
2710                         ptr = lutil_strcopy( ptr, style_strings[a->acl_dn_style] );
2711                 *ptr++ = '=';
2712                 *ptr++ = '"';
2713                 ptr = lutil_strcopy( ptr, a->acl_dn_pat.bv_val );
2714                 ptr = lutil_strcopy( ptr, "\"\n" );
2715         }
2716
2717         if ( a->acl_filter != NULL ) {
2718                 struct berval   bv = BER_BVNULL;
2719
2720                 to++;
2721                 filter2bv( a->acl_filter, &bv );
2722                 ptr = lutil_strcopy( ptr, " filter=\"" );
2723                 ptr = lutil_strcopy( ptr, bv.bv_val );
2724                 *ptr++ = '"';
2725                 *ptr++ = '\n';
2726                 ch_free( bv.bv_val );
2727         }
2728
2729         if ( a->acl_attrs != NULL ) {
2730                 int     first = 1;
2731                 AttributeName *an;
2732                 to++;
2733
2734                 ptr = lutil_strcopy( ptr, " attrs=" );
2735                 for ( an = a->acl_attrs; an && !BER_BVISNULL( &an->an_name ); an++ ) {
2736                         if ( ! first ) *ptr++ = ',';
2737                         if (an->an_oc) {
2738                                 *ptr++ = an->an_oc_exclude ? '!' : '@';
2739                                 ptr = lutil_strcopy( ptr, an->an_oc->soc_cname.bv_val );
2740
2741                         } else {
2742                                 ptr = lutil_strcopy( ptr, an->an_name.bv_val );
2743                         }
2744                         first = 0;
2745                 }
2746                 *ptr++ = '\n';
2747         }
2748
2749         if ( !BER_BVISEMPTY( &a->acl_attrval ) ) {
2750                 to++;
2751                 ptr = lutil_strcopy( ptr, " val." );
2752                 if ( a->acl_attrval_style == ACL_STYLE_BASE &&
2753                         a->acl_attrs[0].an_desc->ad_type->sat_syntax ==
2754                                 slap_schema.si_syn_distinguishedName )
2755                         ptr = lutil_strcopy( ptr, style_base );
2756                 else
2757                         ptr = lutil_strcopy( ptr, style_strings[a->acl_attrval_style] );
2758                 *ptr++ = '=';
2759                 *ptr++ = '"';
2760                 ptr = lutil_strcopy( ptr, a->acl_attrval.bv_val );
2761                 *ptr++ = '"';
2762                 *ptr++ = '\n';
2763         }
2764
2765         if( !to ) {
2766                 ptr = lutil_strcopy( ptr, " *\n" );
2767         }
2768
2769         for ( b = a->acl_access; b != NULL; b = b->a_next ) {
2770                 ptr = access2text( b, ptr );
2771         }
2772         *ptr = '\0';
2773         bv->bv_len = ptr - bv->bv_val;
2774 }
2775
2776 #ifdef LDAP_DEBUG
2777 static void
2778 print_acl( Backend *be, AccessControl *a )
2779 {
2780         struct berval bv;
2781
2782         acl_unparse( a, &bv );
2783         fprintf( stderr, "%s ACL: access %s\n",
2784                 be == NULL ? "Global" : "Backend", bv.bv_val );
2785 }
2786 #endif /* LDAP_DEBUG */