git.sur5r.net Git - openldap/blob - servers/slapd/aclparse.c

   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 1998-2008 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 const 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         "ipv6",
  56         "path",
  57         NULL
  58 };
  59
  60 static void             split(char *line, int splitchar, char **left, char **right);
  61 static void             access_append(Access **l, Access *a);
  62 static void             access_free( Access *a );
  63 static int              acl_usage(void);
  64
  65 static void             acl_regex_normalized_dn(const char *src, struct berval *pat);
  66
  67 #ifdef LDAP_DEBUG
  68 static void             print_acl(Backend *be, AccessControl *a);
  69 #endif
  70
  71 static int              check_scope( BackendDB *be, AccessControl *a );
  72
  73 #ifdef SLAP_DYNACL
  74 static int
  75 slap_dynacl_config(
  76         const char *fname,
  77         int lineno,
  78         Access *b,
  79         const char *name,
  80         const char *opts,
  81         slap_style_t sty,
  82         const char *right )
  83 {
  84         slap_dynacl_t   *da, *tmp;
  85         int             rc = 0;
  86
  87         for ( da = b->a_dynacl; da; da = da->da_next ) {
  88                 if ( strcasecmp( da->da_name, name ) == 0 ) {
  89                         Debug( LDAP_DEBUG_ANY,
  90                                 "%s: line %d: dynacl \"%s\" already specified.\n",
  91                                 fname, lineno, name );
  92                         return acl_usage();
  93                 }
  94         }
  95
  96         da = slap_dynacl_get( name );
  97         if ( da == NULL ) {
  98                 return -1;
  99         }
 100
 101         tmp = ch_malloc( sizeof( slap_dynacl_t ) );
 102         *tmp = *da;
 103
 104         if ( tmp->da_parse ) {
 105                 rc = ( *tmp->da_parse )( fname, lineno, opts, sty, right, &tmp->da_private );
 106                 if ( rc ) {
 107                         ch_free( tmp );
 108                         return rc;
 109                 }
 110         }
 111
 112         tmp->da_next = b->a_dynacl;
 113         b->a_dynacl = tmp;
 114
 115         return 0;
 116 }
 117 #endif /* SLAP_DYNACL */
 118
 119 static void
 120 regtest(const char *fname, int lineno, char *pat) {
 121         int e;
 122         regex_t re;
 123
 124         char            buf[ SLAP_TEXT_BUFLEN ];
 125         unsigned        size;
 126
 127         char *sp;
 128         char *dp;
 129         int  flag;
 130
 131         sp = pat;
 132         dp = buf;
 133         size = 0;
 134         buf[0] = '\0';
 135
 136         for (size = 0, flag = 0; (size < sizeof(buf)) && *sp; sp++) {
 137                 if (flag) {
 138                         if (*sp == '$'|| (*sp >= '0' && *sp <= '9')) {
 139                                 *dp++ = *sp;
 140                                 size++;
 141                         }
 142                         flag = 0;
 143
 144                 } else {
 145                         if (*sp == '$') {
 146                                 flag = 1;
 147                         } else {
 148                                 *dp++ = *sp;
 149                                 size++;
 150                         }
 151                 }
 152         }
 153
 154         *dp = '\0';
 155         if ( size >= (sizeof(buf) - 1) ) {
 156                 Debug( LDAP_DEBUG_ANY,
 157                         "%s: line %d: regular expression \"%s\" too large\n",
 158                         fname, lineno, pat );
 159                 (void)acl_usage();
 160                 exit( EXIT_FAILURE );
 161         }
 162
 163         if ((e = regcomp(&re, buf, REG_EXTENDED|REG_ICASE))) {
 164                 char error[ SLAP_TEXT_BUFLEN ];
 165
 166                 regerror(e, &re, error, sizeof(error));
 167
 168                 snprintf( buf, sizeof( buf ),
 169                         "regular expression \"%s\" bad because of %s",
 170                         pat, error );
 171                 Debug( LDAP_DEBUG_ANY,
 172                         "%s: line %d: %s\n",
 173                         fname, lineno, buf );
 174                 acl_usage();
 175                 exit( EXIT_FAILURE );
 176         }
 177         regfree(&re);
 178 }
 179
 180 /*
 181  * Experimental
 182  *
 183  * Check if the pattern of an ACL, if any, matches the scope
 184  * of the backend it is defined within.
 185  */
 186 #define ACL_SCOPE_UNKNOWN       (-2)
 187 #define ACL_SCOPE_ERR           (-1)
 188 #define ACL_SCOPE_OK            (0)
 189 #define ACL_SCOPE_PARTIAL       (1)
 190 #define ACL_SCOPE_WARN          (2)
 191
 192 static int
 193 check_scope( BackendDB *be, AccessControl *a )
 194 {
 195         ber_len_t       patlen;
 196         struct berval   dn;
 197
 198         dn = be->be_nsuffix[0];
 199
 200         if ( BER_BVISEMPTY( &dn ) ) {
 201                 return ACL_SCOPE_OK;
 202         }
 203
 204         if ( !BER_BVISEMPTY( &a->acl_dn_pat ) ||
 205                         a->acl_dn_style != ACL_STYLE_REGEX )
 206         {
 207                 slap_style_t    style = a->acl_dn_style;
 208
 209                 if ( style == ACL_STYLE_REGEX ) {
 210                         char            dnbuf[SLAP_LDAPDN_MAXLEN + 2];
 211                         char            rebuf[SLAP_LDAPDN_MAXLEN + 1];
 212                         ber_len_t       rebuflen;
 213                         regex_t         re;
 214                         int             rc;
 215
 216                         /* add trailing '$' to database suffix to form
 217                          * a simple trial regex pattern "<suffix>$" */
 218                         AC_MEMCPY( dnbuf, be->be_nsuffix[0].bv_val,
 219                                 be->be_nsuffix[0].bv_len );
 220                         dnbuf[be->be_nsuffix[0].bv_len] = '$';
 221                         dnbuf[be->be_nsuffix[0].bv_len + 1] = '\0';
 222
 223                         if ( regcomp( &re, dnbuf, REG_EXTENDED|REG_ICASE ) ) {
 224                                 return ACL_SCOPE_WARN;
 225                         }
 226
 227                         /* remove trailing ')$', if any, from original
 228                          * regex pattern */
 229                         rebuflen = a->acl_dn_pat.bv_len;
 230                         AC_MEMCPY( rebuf, a->acl_dn_pat.bv_val, rebuflen + 1 );
 231                         if ( rebuf[rebuflen - 1] == '$' ) {
 232                                 rebuf[--rebuflen] = '\0';
 233                         }
 234                         while ( rebuflen > be->be_nsuffix[0].bv_len && rebuf[rebuflen - 1] == ')' ) {
 235                                 rebuf[--rebuflen] = '\0';
 236                         }
 237                         if ( rebuflen == be->be_nsuffix[0].bv_len ) {
 238                                 rc = ACL_SCOPE_WARN;
 239                                 goto regex_done;
 240                         }
 241
 242                         /* not a clear indication of scoping error, though */
 243                         rc = regexec( &re, rebuf, 0, NULL, 0 )
 244                                 ? ACL_SCOPE_WARN : ACL_SCOPE_OK;
 245
 246 regex_done:;
 247                         regfree( &re );
 248                         return rc;
 249                 }
 250
 251                 patlen = a->acl_dn_pat.bv_len;
 252                 /* If backend suffix is longer than pattern,
 253                  * it is a potential mismatch (in the sense
 254                  * that a superior naming context could
 255                  * match */
 256                 if ( dn.bv_len > patlen ) {
 257                         /* base is blatantly wrong */
 258                         if ( style == ACL_STYLE_BASE ) return ACL_SCOPE_ERR;
 259
 260                         /* a style of one can be wrong if there is
 261                          * more than one level between the suffix
 262                          * and the pattern */
 263                         if ( style == ACL_STYLE_ONE ) {
 264                                 ber_len_t       rdnlen = 0;
 265                                 int             sep = 0;
 266
 267                                 if ( patlen > 0 ) {
 268                                         if ( !DN_SEPARATOR( dn.bv_val[dn.bv_len - patlen - 1] )) {
 269                                                 return ACL_SCOPE_ERR;
 270                                         }
 271                                         sep = 1;
 272                                 }
 273
 274                                 rdnlen = dn_rdnlen( NULL, &dn );
 275                                 if ( rdnlen != dn.bv_len - patlen - sep )
 276                                         return ACL_SCOPE_ERR;
 277                         }
 278
 279                         /* if the trailing part doesn't match,
 280                          * then it's an error */
 281                         if ( strcmp( a->acl_dn_pat.bv_val,
 282                                 &dn.bv_val[dn.bv_len - patlen] ) != 0 )
 283                         {
 284                                 return ACL_SCOPE_ERR;
 285                         }
 286
 287                         return ACL_SCOPE_PARTIAL;
 288                 }
 289
 290                 switch ( style ) {
 291                 case ACL_STYLE_BASE:
 292                 case ACL_STYLE_ONE:
 293                 case ACL_STYLE_CHILDREN:
 294                 case ACL_STYLE_SUBTREE:
 295                         break;
 296
 297                 default:
 298                         assert( 0 );
 299                         break;
 300                 }
 301
 302                 if ( dn.bv_len < patlen &&
 303                         !DN_SEPARATOR( a->acl_dn_pat.bv_val[patlen - dn.bv_len - 1] ))
 304                 {
 305                         return ACL_SCOPE_ERR;
 306                 }
 307
 308                 if ( strcmp( &a->acl_dn_pat.bv_val[patlen - dn.bv_len], dn.bv_val )
 309                         != 0 )
 310                 {
 311                         return ACL_SCOPE_ERR;
 312                 }
 313
 314                 return ACL_SCOPE_OK;
 315         }
 316
 317         return ACL_SCOPE_UNKNOWN;
 318 }
 319
 320 int
 321 parse_acl(
 322         Backend *be,
 323         const char      *fname,
 324         int             lineno,
 325         int             argc,
 326         char            **argv,
 327         int             pos )
 328 {
 329         int             i;
 330         char            *left, *right, *style;
 331         struct berval   bv;
 332         AccessControl   *a = NULL;
 333         Access  *b = NULL;
 334         int rc;
 335         const char *text;
 336
 337         for ( i = 1; i < argc; i++ ) {
 338                 /* to clause - select which entries are protected */
 339                 if ( strcasecmp( argv[i], "to" ) == 0 ) {
 340                         if ( a != NULL ) {
 341                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 342                                         "only one to clause allowed in access line\n",
 343                                     fname, lineno, 0 );
 344                                 goto fail;
 345                         }
 346                         a = (AccessControl *) ch_calloc( 1, sizeof(AccessControl) );
 347                         for ( ++i; i < argc; i++ ) {
 348                                 if ( strcasecmp( argv[i], "by" ) == 0 ) {
 349                                         i--;
 350                                         break;
 351                                 }
 352
 353                                 if ( strcasecmp( argv[i], "*" ) == 0 ) {
 354                                         if ( !BER_BVISEMPTY( &a->acl_dn_pat ) ||
 355                                                 a->acl_dn_style != ACL_STYLE_REGEX )
 356                                         {
 357                                                 Debug( LDAP_DEBUG_ANY,
 358                                                         "%s: line %d: dn pattern"
 359                                                         " already specified in to clause.\n",
 360                                                         fname, lineno, 0 );
 361                                                 goto fail;
 362                                         }
 363
 364                                         ber_str2bv( "*", STRLENOF( "*" ), 1, &a->acl_dn_pat );
 365                                         continue;
 366                                 }
 367
 368                                 split( argv[i], '=', &left, &right );
 369                                 split( left, '.', &left, &style );
 370
 371                                 if ( right == NULL ) {
 372                                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 373                                                 "missing \"=\" in \"%s\" in to clause\n",
 374                                             fname, lineno, left );
 375                                         goto fail;
 376                                 }
 377
 378                                 if ( strcasecmp( left, "dn" ) == 0 ) {
 379                                         if ( !BER_BVISEMPTY( &a->acl_dn_pat ) ||
 380                                                 a->acl_dn_style != ACL_STYLE_REGEX )
 381                                         {
 382                                                 Debug( LDAP_DEBUG_ANY,
 383                                                         "%s: line %d: dn pattern"
 384                                                         " already specified in to clause.\n",
 385                                                         fname, lineno, 0 );
 386                                                 goto fail;
 387                                         }
 388
 389                                         if ( style == NULL || *style == '\0' ||
 390                                                 strcasecmp( style, "baseObject" ) == 0 ||
 391                                                 strcasecmp( style, "base" ) == 0 ||
 392                                                 strcasecmp( style, "exact" ) == 0 )
 393                                         {
 394                                                 a->acl_dn_style = ACL_STYLE_BASE;
 395                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 396
 397                                         } else if ( strcasecmp( style, "oneLevel" ) == 0 ||
 398                                                 strcasecmp( style, "one" ) == 0 )
 399                                         {
 400                                                 a->acl_dn_style = ACL_STYLE_ONE;
 401                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 402
 403                                         } else if ( strcasecmp( style, "subtree" ) == 0 ||
 404                                                 strcasecmp( style, "sub" ) == 0 )
 405                                         {
 406                                                 if( *right == '\0' ) {
 407                                                         ber_str2bv( "*", STRLENOF( "*" ), 1, &a->acl_dn_pat );
 408
 409                                                 } else {
 410                                                         a->acl_dn_style = ACL_STYLE_SUBTREE;
 411                                                         ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 412                                                 }
 413
 414                                         } else if ( strcasecmp( style, "children" ) == 0 ) {
 415                                                 a->acl_dn_style = ACL_STYLE_CHILDREN;
 416                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 417
 418                                         } else if ( strcasecmp( style, "regex" ) == 0 ) {
 419                                                 a->acl_dn_style = ACL_STYLE_REGEX;
 420
 421                                                 if ( *right == '\0' ) {
 422                                                         /* empty regex should match empty DN */
 423                                                         a->acl_dn_style = ACL_STYLE_BASE;
 424                                                         ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 425
 426                                                 } else if ( strcmp(right, "*") == 0
 427                                                         || strcmp(right, ".*") == 0
 428                                                         || strcmp(right, ".*$") == 0
 429                                                         || strcmp(right, "^.*") == 0
 430                                                         || strcmp(right, "^.*$") == 0
 431                                                         || strcmp(right, ".*$$") == 0
 432                                                         || strcmp(right, "^.*$$") == 0 )
 433                                                 {
 434                                                         ber_str2bv( "*", STRLENOF("*"), 1, &a->acl_dn_pat );
 435
 436                                                 } else {
 437                                                         acl_regex_normalized_dn( right, &a->acl_dn_pat );
 438                                                 }
 439
 440                                         } else {
 441                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 442                                                         "unknown dn style \"%s\" in to clause\n",
 443                                                     fname, lineno, style );
 444                                                 goto fail;
 445                                         }
 446
 447                                         continue;
 448                                 }
 449
 450                                 if ( strcasecmp( left, "filter" ) == 0 ) {
 451                                         if ( (a->acl_filter = str2filter( right )) == NULL ) {
 452                                                 Debug( LDAP_DEBUG_ANY,
 453                                 "%s: line %d: bad filter \"%s\" in to clause\n",
 454                                                     fname, lineno, right );
 455                                                 goto fail;
 456                                         }
 457
 458                                 } else if ( strcasecmp( left, "attr" ) == 0             /* TOLERATED */
 459                                                 || strcasecmp( left, "attrs" ) == 0 )   /* DOCUMENTED */
 460                                 {
 461                                         if ( strcasecmp( left, "attr" ) == 0 ) {
 462                                                 Debug( LDAP_DEBUG_ANY,
 463                                                         "%s: line %d: \"attr\" "
 464                                                         "is deprecated (and undocumented); "
 465                                                         "use \"attrs\" instead.\n",
 466                                                         fname, lineno, 0 );
 467                                         }
 468
 469                                         a->acl_attrs = str2anlist( a->acl_attrs,
 470                                                 right, "," );
 471                                         if ( a->acl_attrs == NULL ) {
 472                                                 Debug( LDAP_DEBUG_ANY,
 473                                 "%s: line %d: unknown attr \"%s\" in to clause\n",
 474                                                     fname, lineno, right );
 475                                                 goto fail;
 476                                         }
 477
 478                                 } else if ( strncasecmp( left, "val", 3 ) == 0 ) {
 479                                         struct berval   bv;
 480                                         char            *mr;
 481
 482                                         if ( !BER_BVISEMPTY( &a->acl_attrval ) ) {
 483                                                 Debug( LDAP_DEBUG_ANY,
 484                                 "%s: line %d: attr val already specified in to clause.\n",
 485                                                         fname, lineno, 0 );
 486                                                 goto fail;
 487                                         }
 488                                         if ( a->acl_attrs == NULL || !BER_BVISEMPTY( &a->acl_attrs[1].an_name ) )
 489                                         {
 490                                                 Debug( LDAP_DEBUG_ANY,
 491                                 "%s: line %d: attr val requires a single attribute.\n",
 492                                                         fname, lineno, 0 );
 493                                                 goto fail;
 494                                         }
 495
 496                                         ber_str2bv( right, 0, 0, &bv );
 497                                         a->acl_attrval_style = ACL_STYLE_BASE;
 498
 499                                         mr = strchr( left, '/' );
 500                                         if ( mr != NULL ) {
 501                                                 mr[ 0 ] = '\0';
 502                                                 mr++;
 503
 504                                                 a->acl_attrval_mr = mr_find( mr );
 505                                                 if ( a->acl_attrval_mr == NULL ) {
 506                                                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 507                                                                 "invalid matching rule \"%s\".\n",
 508                                                                 fname, lineno, mr );
 509                                                         goto fail;
 510                                                 }
 511
 512                                                 if( !mr_usable_with_at( a->acl_attrval_mr, a->acl_attrs[ 0 ].an_desc->ad_type ) )
 513                                                 {
 514                                                         char    buf[ SLAP_TEXT_BUFLEN ];
 515
 516                                                         snprintf( buf, sizeof( buf ),
 517                                                                 "matching rule \"%s\" use "
 518                                                                 "with attr \"%s\" not appropriate.",
 519                                                                 mr, a->acl_attrs[ 0 ].an_name.bv_val );
 520
 521
 522                                                         Debug( LDAP_DEBUG_ANY, "%s: line %d: %s\n",
 523                                                                 fname, lineno, buf );
 524                                                         goto fail;
 525                                                 }
 526                                         }
 527
 528                                         if ( style != NULL ) {
 529                                                 if ( strcasecmp( style, "regex" ) == 0 ) {
 530                                                         int e = regcomp( &a->acl_attrval_re, bv.bv_val,
 531                                                                 REG_EXTENDED | REG_ICASE | REG_NOSUB );
 532                                                         if ( e ) {
 533                                                                 char    err[SLAP_TEXT_BUFLEN],
 534                                                                         buf[ SLAP_TEXT_BUFLEN ];
 535
 536                                                                 regerror( e, &a->acl_attrval_re, err, sizeof( err ) );
 537
 538                                                                 snprintf( buf, sizeof( buf ),
 539                                                                         "regular expression \"%s\" bad because of %s",
 540                                                                         right, err );
 541
 542                                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: %s\n",
 543                                                                         fname, lineno, buf );
 544                                                                 goto fail;
 545                                                         }
 546                                                         a->acl_attrval_style = ACL_STYLE_REGEX;
 547
 548                                                 } else {
 549                                                         /* FIXME: if the attribute has DN syntax, we might
 550                                                          * allow one, subtree and children styles as well */
 551                                                         if ( !strcasecmp( style, "base" ) ||
 552                                                                 !strcasecmp( style, "exact" ) ) {
 553                                                                 a->acl_attrval_style = ACL_STYLE_BASE;
 554
 555                                                         } else if ( a->acl_attrs[0].an_desc->ad_type->
 556                                                                 sat_syntax == slap_schema.si_syn_distinguishedName )
 557                                                         {
 558                                                                 if ( !strcasecmp( style, "baseObject" ) ||
 559                                                                         !strcasecmp( style, "base" ) )
 560                                                                 {
 561                                                                         a->acl_attrval_style = ACL_STYLE_BASE;
 562                                                                 } else if ( !strcasecmp( style, "onelevel" ) ||
 563                                                                         !strcasecmp( style, "one" ) )
 564                                                                 {
 565                                                                         a->acl_attrval_style = ACL_STYLE_ONE;
 566                                                                 } else if ( !strcasecmp( style, "subtree" ) ||
 567                                                                         !strcasecmp( style, "sub" ) )
 568                                                                 {
 569                                                                         a->acl_attrval_style = ACL_STYLE_SUBTREE;
 570                                                                 } else if ( !strcasecmp( style, "children" ) ) {
 571                                                                         a->acl_attrval_style = ACL_STYLE_CHILDREN;
 572                                                                 } else {
 573                                                                         char    buf[ SLAP_TEXT_BUFLEN ];
 574
 575                                                                         snprintf( buf, sizeof( buf ),
 576                                                                                 "unknown val.<style> \"%s\" for attributeType \"%s\" "
 577                                                                                         "with DN syntax.",
 578                                                                                 style,
 579                                                                                 a->acl_attrs[0].an_desc->ad_cname.bv_val );
 580
 581                                                                         Debug( LDAP_DEBUG_CONFIG | LDAP_DEBUG_ACL,
 582                                                                                 "%s: line %d: %s\n",
 583                                                                                 fname, lineno, buf );
 584                                                                         goto fail;
 585                                                                 }
 586
 587                                                                 rc = dnNormalize( 0, NULL, NULL, &bv, &a->acl_attrval, NULL );
 588                                                                 if ( rc != LDAP_SUCCESS ) {
 589                                                                         char    buf[ SLAP_TEXT_BUFLEN ];
 590
 591                                                                         snprintf( buf, sizeof( buf ),
 592                                                                                 "unable to normalize DN \"%s\" "
 593                                                                                 "for attributeType \"%s\" (%d).",
 594                                                                                 bv.bv_val,
 595                                                                                 a->acl_attrs[0].an_desc->ad_cname.bv_val,
 596                                                                                 rc );
 597                                                                         Debug( LDAP_DEBUG_ANY,
 598                                                                                 "%s: line %d: %s\n",
 599                                                                                 fname, lineno, buf );
 600                                                                         goto fail;
 601                                                                 }
 602
 603                                                         } else {
 604                                                                 char    buf[ SLAP_TEXT_BUFLEN ];
 605
 606                                                                 snprintf( buf, sizeof( buf ),
 607                                                                         "unknown val.<style> \"%s\" for attributeType \"%s\".",
 608                                                                         style, a->acl_attrs[0].an_desc->ad_cname.bv_val );
 609                                                                 Debug( LDAP_DEBUG_CONFIG | LDAP_DEBUG_ACL,
 610                                                                         "%s: line %d: %s\n",
 611                                                                         fname, lineno, buf );
 612                                                                 goto fail;
 613                                                         }
 614                                                 }
 615                                         }
 616
 617                                         /* Check for appropriate matching rule */
 618                                         if ( a->acl_attrval_style == ACL_STYLE_REGEX ) {
 619                                                 ber_dupbv( &a->acl_attrval, &bv );
 620
 621                                         } else if ( BER_BVISNULL( &a->acl_attrval ) ) {
 622                                                 int             rc;
 623                                                 const char      *text;
 624
 625                                                 if ( a->acl_attrval_mr == NULL ) {
 626                                                         a->acl_attrval_mr = a->acl_attrs[ 0 ].an_desc->ad_type->sat_equality;
 627                                                 }
 628
 629                                                 if ( a->acl_attrval_mr == NULL ) {
 630                                                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 631                                                                 "attr \"%s\" does not have an EQUALITY matching rule.\n",
 632                                                                 fname, lineno, a->acl_attrs[ 0 ].an_name.bv_val );
 633                                                         goto fail;
 634                                                 }
 635
 636                                                 rc = asserted_value_validate_normalize(
 637                                                         a->acl_attrs[ 0 ].an_desc,
 638                                                         a->acl_attrval_mr,
 639                                                         SLAP_MR_EQUALITY|SLAP_MR_VALUE_OF_ASSERTION_SYNTAX,
 640                                                         &bv,
 641                                                         &a->acl_attrval,
 642                                                         &text,
 643                                                         NULL );
 644                                                 if ( rc != LDAP_SUCCESS ) {
 645                                                         char    buf[ SLAP_TEXT_BUFLEN ];
 646
 647                                                         snprintf( buf, sizeof( buf ), "%s: line %d: "
 648                                                                 " attr \"%s\" normalization failed (%d: %s)",
 649                                                                 fname, lineno,
 650                                                                 a->acl_attrs[ 0 ].an_name.bv_val, rc, text );
 651                                                         Debug( LDAP_DEBUG_ANY, "%s: line %d: %s.\n",
 652                                                                 fname, lineno, buf );
 653                                                         goto fail;
 654                                                 }
 655                                         }
 656
 657                                 } else {
 658                                         Debug( LDAP_DEBUG_ANY,
 659                                                 "%s: line %d: expecting <what> got \"%s\"\n",
 660                                             fname, lineno, left );
 661                                         goto fail;
 662                                 }
 663                         }
 664
 665                         if ( !BER_BVISNULL( &a->acl_dn_pat ) &&
 666                                         ber_bvccmp( &a->acl_dn_pat, '*' ) )
 667                         {
 668                                 free( a->acl_dn_pat.bv_val );
 669                                 BER_BVZERO( &a->acl_dn_pat );
 670                                 a->acl_dn_style = ACL_STYLE_REGEX;
 671                         }
 672
 673                         if ( !BER_BVISEMPTY( &a->acl_dn_pat ) ||
 674                                         a->acl_dn_style != ACL_STYLE_REGEX )
 675                         {
 676                                 if ( a->acl_dn_style != ACL_STYLE_REGEX ) {
 677                                         struct berval bv;
 678                                         rc = dnNormalize( 0, NULL, NULL, &a->acl_dn_pat, &bv, NULL);
 679                                         if ( rc != LDAP_SUCCESS ) {
 680                                                 Debug( LDAP_DEBUG_ANY,
 681                                                         "%s: line %d: bad DN \"%s\" in to DN clause\n",
 682                                                         fname, lineno, a->acl_dn_pat.bv_val );
 683                                                 goto fail;
 684                                         }
 685                                         free( a->acl_dn_pat.bv_val );
 686                                         a->acl_dn_pat = bv;
 687
 688                                 } else {
 689                                         int e = regcomp( &a->acl_dn_re, a->acl_dn_pat.bv_val,
 690                                                 REG_EXTENDED | REG_ICASE );
 691                                         if ( e ) {
 692                                                 char    err[ SLAP_TEXT_BUFLEN ],
 693                                                         buf[ SLAP_TEXT_BUFLEN ];
 694
 695                                                 regerror( e, &a->acl_dn_re, err, sizeof( err ) );
 696                                                 snprintf( buf, sizeof( buf ),
 697                                                         "regular expression \"%s\" bad because of %s",
 698                                                         right, err );
 699                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: %s\n",
 700                                                         fname, lineno, buf );
 701                                                 goto fail;
 702                                         }
 703                                 }
 704                         }
 705
 706                 /* by clause - select who has what access to entries */
 707                 } else if ( strcasecmp( argv[i], "by" ) == 0 ) {
 708                         if ( a == NULL ) {
 709                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 710                                         "to clause required before by clause in access line\n",
 711                                         fname, lineno, 0 );
 712                                 goto fail;
 713                         }
 714
 715                         /*
 716                          * by clause consists of <who> and <access>
 717                          */
 718
 719                         if ( ++i == argc ) {
 720                                 Debug( LDAP_DEBUG_ANY,
 721                                         "%s: line %d: premature EOL: expecting <who>\n",
 722                                         fname, lineno, 0 );
 723                                 goto fail;
 724                         }
 725
 726                         b = (Access *) ch_calloc( 1, sizeof(Access) );
 727
 728                         ACL_INVALIDATE( b->a_access_mask );
 729
 730                         /* get <who> */
 731                         for ( ; i < argc; i++ ) {
 732                                 slap_style_t    sty = ACL_STYLE_REGEX;
 733                                 char            *style_modifier = NULL;
 734                                 char            *style_level = NULL;
 735                                 int             level = 0;
 736                                 int             expand = 0;
 737                                 slap_dn_access  *bdn = &b->a_dn;
 738                                 int             is_realdn = 0;
 739
 740                                 split( argv[i], '=', &left, &right );
 741                                 split( left, '.', &left, &style );
 742                                 if ( style ) {
 743                                         split( style, ',', &style, &style_modifier );
 744
 745                                         if ( strncasecmp( style, "level", STRLENOF( "level" ) ) == 0 ) {
 746                                                 split( style, '{', &style, &style_level );
 747                                                 if ( style_level != NULL ) {
 748                                                         char *p = strchr( style_level, '}' );
 749                                                         if ( p == NULL ) {
 750                                                                 Debug( LDAP_DEBUG_ANY,
 751                                                                         "%s: line %d: premature eol: "
 752                                                                         "expecting closing '}' in \"level{n}\"\n",
 753                                                                         fname, lineno, 0 );
 754                                                                 goto fail;
 755                                                         } else if ( p == style_level ) {
 756                                                                 Debug( LDAP_DEBUG_ANY,
 757                                                                         "%s: line %d: empty level "
 758                                                                         "in \"level{n}\"\n",
 759                                                                         fname, lineno, 0 );
 760                                                                 goto fail;
 761                                                         }
 762                                                         p[0] = '\0';
 763                                                 }
 764                                         }
 765                                 }
 766
 767                                 if ( style == NULL || *style == '\0' ||
 768                                         strcasecmp( style, "exact" ) == 0 ||
 769                                         strcasecmp( style, "baseObject" ) == 0 ||
 770                                         strcasecmp( style, "base" ) == 0 )
 771                                 {
 772                                         sty = ACL_STYLE_BASE;
 773
 774                                 } else if ( strcasecmp( style, "onelevel" ) == 0 ||
 775                                         strcasecmp( style, "one" ) == 0 )
 776                                 {
 777                                         sty = ACL_STYLE_ONE;
 778
 779                                 } else if ( strcasecmp( style, "subtree" ) == 0 ||
 780                                         strcasecmp( style, "sub" ) == 0 )
 781                                 {
 782                                         sty = ACL_STYLE_SUBTREE;
 783
 784                                 } else if ( strcasecmp( style, "children" ) == 0 ) {
 785                                         sty = ACL_STYLE_CHILDREN;
 786
 787                                 } else if ( strcasecmp( style, "level" ) == 0 )
 788                                 {
 789                                         if ( lutil_atoi( &level, style_level ) != 0 ) {
 790                                                 Debug( LDAP_DEBUG_ANY,
 791                                                         "%s: line %d: unable to parse level "
 792                                                         "in \"level{n}\"\n",
 793                                                         fname, lineno, 0 );
 794                                                 goto fail;
 795                                         }
 796
 797                                         sty = ACL_STYLE_LEVEL;
 798
 799                                 } else if ( strcasecmp( style, "regex" ) == 0 ) {
 800                                         sty = ACL_STYLE_REGEX;
 801
 802                                 } else if ( strcasecmp( style, "expand" ) == 0 ) {
 803                                         sty = ACL_STYLE_EXPAND;
 804
 805                                 } else if ( strcasecmp( style, "ip" ) == 0 ) {
 806                                         sty = ACL_STYLE_IP;
 807
 808                                 } else if ( strcasecmp( style, "ipv6" ) == 0 ) {
 809 #ifndef LDAP_PF_INET6
 810                                         Debug( LDAP_DEBUG_ANY,
 811                                                 "%s: line %d: IPv6 not supported\n",
 812                                                 fname, lineno, 0 );
 813 #endif /* ! LDAP_PF_INET6 */
 814                                         sty = ACL_STYLE_IPV6;
 815
 816                                 } else if ( strcasecmp( style, "path" ) == 0 ) {
 817                                         sty = ACL_STYLE_PATH;
 818 #ifndef LDAP_PF_LOCAL
 819                                         Debug( LDAP_DEBUG_CONFIG | LDAP_DEBUG_ACL,
 820                                                 "%s: line %d: "
 821                                                 "\"path\" style modifier is useless without local.\n",
 822                                                 fname, lineno, 0 );
 823                                         goto fail;
 824 #endif /* LDAP_PF_LOCAL */
 825
 826                                 } else {
 827                                         Debug( LDAP_DEBUG_ANY,
 828                                                 "%s: line %d: unknown style \"%s\" in by clause\n",
 829                                                 fname, lineno, style );
 830                                         goto fail;
 831                                 }
 832
 833                                 if ( style_modifier &&
 834                                         strcasecmp( style_modifier, "expand" ) == 0 )
 835                                 {
 836                                         switch ( sty ) {
 837                                         case ACL_STYLE_REGEX:
 838                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 839                                                         "\"regex\" style implies \"expand\" modifier.\n",
 840                                                         fname, lineno, 0 );
 841                                                 goto fail;
 842                                                 break;
 843
 844                                         case ACL_STYLE_EXPAND:
 845                                                 break;
 846
 847                                         default:
 848                                                 /* we'll see later if it's pertinent */
 849                                                 expand = 1;
 850                                                 break;
 851                                         }
 852                                 }
 853
 854                                 /* expand in <who> needs regex in <what> */
 855                                 if ( ( sty == ACL_STYLE_EXPAND || expand )
 856                                                 && a->acl_dn_style != ACL_STYLE_REGEX )
 857                                 {
 858                                         Debug( LDAP_DEBUG_CONFIG | LDAP_DEBUG_ACL, "%s: line %d: \"expand\" style "
 859                                                 "or modifier used in conjunction with a non-regex <what> clause.\n",
 860                                                 fname, lineno, 0 );
 861                                                 goto fail;
 862                                 }
 863
 864                                 if ( strncasecmp( left, "real", STRLENOF( "real" ) ) == 0 ) {
 865                                         is_realdn = 1;
 866                                         bdn = &b->a_realdn;
 867                                         left += STRLENOF( "real" );
 868                                 }
 869
 870                                 if ( strcasecmp( left, "*" ) == 0 ) {
 871                                         if ( is_realdn ) {
 872                                                 goto fail;
 873                                         }
 874
 875                                         ber_str2bv( "*", STRLENOF( "*" ), 1, &bv );
 876                                         sty = ACL_STYLE_REGEX;
 877
 878                                 } else if ( strcasecmp( left, "anonymous" ) == 0 ) {
 879                                         ber_str2bv("anonymous", STRLENOF( "anonymous" ), 1, &bv);
 880                                         sty = ACL_STYLE_ANONYMOUS;
 881
 882                                 } else if ( strcasecmp( left, "users" ) == 0 ) {
 883                                         ber_str2bv("users", STRLENOF( "users" ), 1, &bv);
 884                                         sty = ACL_STYLE_USERS;
 885
 886                                 } else if ( strcasecmp( left, "self" ) == 0 ) {
 887                                         ber_str2bv("self", STRLENOF( "self" ), 1, &bv);
 888                                         sty = ACL_STYLE_SELF;
 889
 890                                 } else if ( strcasecmp( left, "dn" ) == 0 ) {
 891                                         if ( sty == ACL_STYLE_REGEX ) {
 892                                                 bdn->a_style = ACL_STYLE_REGEX;
 893                                                 if ( right == NULL ) {
 894                                                         /* no '=' */
 895                                                         ber_str2bv("users",
 896                                                                 STRLENOF( "users" ),
 897                                                                 1, &bv);
 898                                                         bdn->a_style = ACL_STYLE_USERS;
 899
 900                                                 } else if (*right == '\0' ) {
 901                                                         /* dn="" */
 902                                                         ber_str2bv("anonymous",
 903                                                                 STRLENOF( "anonymous" ),
 904                                                                 1, &bv);
 905                                                         bdn->a_style = ACL_STYLE_ANONYMOUS;
 906
 907                                                 } else if ( strcmp( right, "*" ) == 0 ) {
 908                                                         /* dn=* */
 909                                                         /* any or users?  users for now */
 910                                                         ber_str2bv("users",
 911                                                                 STRLENOF( "users" ),
 912                                                                 1, &bv);
 913                                                         bdn->a_style = ACL_STYLE_USERS;
 914
 915                                                 } else if ( strcmp( right, ".+" ) == 0
 916                                                         || strcmp( right, "^.+" ) == 0
 917                                                         || strcmp( right, ".+$" ) == 0
 918                                                         || strcmp( right, "^.+$" ) == 0
 919                                                         || strcmp( right, ".+$$" ) == 0
 920                                                         || strcmp( right, "^.+$$" ) == 0 )
 921                                                 {
 922                                                         ber_str2bv("users",
 923                                                                 STRLENOF( "users" ),
 924                                                                 1, &bv);
 925                                                         bdn->a_style = ACL_STYLE_USERS;
 926
 927                                                 } else if ( strcmp( right, ".*" ) == 0
 928                                                         || strcmp( right, "^.*" ) == 0
 929                                                         || strcmp( right, ".*$" ) == 0
 930                                                         || strcmp( right, "^.*$" ) == 0
 931                                                         || strcmp( right, ".*$$" ) == 0
 932                                                         || strcmp( right, "^.*$$" ) == 0 )
 933                                                 {
 934                                                         ber_str2bv("*",
 935                                                                 STRLENOF( "*" ),
 936                                                                 1, &bv);
 937
 938                                                 } else {
 939                                                         acl_regex_normalized_dn( right, &bv );
 940                                                         if ( !ber_bvccmp( &bv, '*' ) ) {
 941                                                                 regtest( fname, lineno, bv.bv_val );
 942                                                         }
 943                                                 }
 944
 945                                         } else if ( right == NULL || *right == '\0' ) {
 946                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 947                                                         "missing \"=\" in (or value after) \"%s\" "
 948                                                         "in by clause\n",
 949                                                         fname, lineno, left );
 950                                                 goto fail;
 951
 952                                         } else {
 953                                                 ber_str2bv( right, 0, 1, &bv );
 954                                         }
 955
 956                                 } else {
 957                                         BER_BVZERO( &bv );
 958                                 }
 959
 960                                 if ( !BER_BVISNULL( &bv ) ) {
 961                                         if ( !BER_BVISEMPTY( &bdn->a_pat ) ) {
 962                                                 Debug( LDAP_DEBUG_ANY,
 963                                                         "%s: line %d: dn pattern already specified.\n",
 964                                                         fname, lineno, 0 );
 965                                                 goto fail;
 966                                         }
 967
 968                                         if ( sty != ACL_STYLE_REGEX &&
 969                                                         sty != ACL_STYLE_ANONYMOUS &&
 970                                                         sty != ACL_STYLE_USERS &&
 971                                                         sty != ACL_STYLE_SELF &&
 972                                                         expand == 0 )
 973                                         {
 974                                                 rc = dnNormalize(0, NULL, NULL,
 975                                                         &bv, &bdn->a_pat, NULL);
 976                                                 if ( rc != LDAP_SUCCESS ) {
 977                                                         Debug( LDAP_DEBUG_ANY,
 978                                                                 "%s: line %d: bad DN \"%s\" in by DN clause\n",
 979                                                                 fname, lineno, bv.bv_val );
 980                                                         goto fail;
 981                                                 }
 982                                                 free( bv.bv_val );
 983                                                 if ( sty == ACL_STYLE_BASE
 984                                                         && be != NULL
 985                                                         && !BER_BVISNULL( &be->be_rootndn )
 986                                                         && dn_match( &bdn->a_pat, &be->be_rootndn ) )
 987                                                 {
 988                                                         Debug( LDAP_DEBUG_ANY,
 989                                                                 "%s: line %d: rootdn is always granted "
 990                                                                 "unlimited privileges.\n",
 991                                                                 fname, lineno, 0 );
 992                                                 }
 993
 994                                         } else {
 995                                                 bdn->a_pat = bv;
 996                                         }
 997                                         bdn->a_style = sty;
 998                                         if ( expand ) {
 999                                                 char    *exp;
1000                                                 int     gotit = 0;
1001
1002                                                 for ( exp = strchr( bdn->a_pat.bv_val, '$' );
1003                                                         exp && (ber_len_t)(exp - bdn->a_pat.bv_val)
1004                                                                 < bdn->a_pat.bv_len;
1005                                                         exp = strchr( exp, '$' ) )
1006                                                 {
1007                                                         if ( isdigit( (unsigned char) exp[ 1 ] ) ) {
1008                                                                 gotit = 1;
1009                                                                 break;
1010                                                         }
1011                                                 }
1012
1013                                                 if ( gotit == 1 ) {
1014                                                         bdn->a_expand = expand;
1015
1016                                                 } else {
1017                                                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1018                                                                 "\"expand\" used with no expansions in \"pattern\".\n",
1019                                                                 fname, lineno, 0 );
1020                                                         goto fail;
1021                                                 }
1022                                         }
1023                                         if ( sty == ACL_STYLE_SELF ) {
1024                                                 bdn->a_self_level = level;
1025
1026                                         } else {
1027                                                 if ( level < 0 ) {
1028                                                         Debug( LDAP_DEBUG_ANY,
1029                                                                 "%s: line %d: bad negative level \"%d\" "
1030                                                                 "in by DN clause\n",
1031                                                                 fname, lineno, level );
1032                                                         goto fail;
1033                                                 } else if ( level == 1 ) {
1034                                                         Debug( LDAP_DEBUG_ANY,
1035                                                                 "%s: line %d: \"onelevel\" should be used "
1036                                                                 "instead of \"level{1}\" in by DN clause\n",
1037                                                                 fname, lineno, 0 );
1038                                                 } else if ( level == 0 && sty == ACL_STYLE_LEVEL ) {
1039                                                         Debug( LDAP_DEBUG_ANY,
1040                                                                 "%s: line %d: \"base\" should be used "
1041                                                                 "instead of \"level{0}\" in by DN clause\n",
1042                                                                 fname, lineno, 0 );
1043                                                 }
1044
1045                                                 bdn->a_level = level;
1046                                         }
1047                                         continue;
1048                                 }
1049
1050                                 if ( strcasecmp( left, "dnattr" ) == 0 ) {
1051                                         if ( right == NULL || right[0] == '\0' ) {
1052                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1053                                                         "missing \"=\" in (or value after) \"%s\" "
1054                                                         "in by clause\n",
1055                                                         fname, lineno, left );
1056                                                 goto fail;
1057                                         }
1058
1059                                         if( bdn->a_at != NULL ) {
1060                                                 Debug( LDAP_DEBUG_ANY,
1061                                                         "%s: line %d: dnattr already specified.\n",
1062                                                         fname, lineno, 0 );
1063                                                 goto fail;
1064                                         }
1065
1066                                         rc = slap_str2ad( right, &bdn->a_at, &text );
1067
1068                                         if( rc != LDAP_SUCCESS ) {
1069                                                 char    buf[ SLAP_TEXT_BUFLEN ];
1070
1071                                                 snprintf( buf, sizeof( buf ),
1072                                                         "dnattr \"%s\": %s",
1073                                                         right, text );
1074                                                 Debug( LDAP_DEBUG_ANY,
1075                                                         "%s: line %d: %s\n",
1076                                                         fname, lineno, buf );
1077                                                 goto fail;
1078                                         }
1079
1080
1081                                         if( !is_at_syntax( bdn->a_at->ad_type,
1082                                                 SLAPD_DN_SYNTAX ) &&
1083                                                 !is_at_syntax( bdn->a_at->ad_type,
1084                                                 SLAPD_NAMEUID_SYNTAX ))
1085                                         {
1086                                                 char    buf[ SLAP_TEXT_BUFLEN ];
1087
1088                                                 snprintf( buf, sizeof( buf ),
1089                                                         "dnattr \"%s\": "
1090                                                         "inappropriate syntax: %s\n",
1091                                                         right,
1092                                                         bdn->a_at->ad_type->sat_syntax_oid );
1093                                                 Debug( LDAP_DEBUG_ANY,
1094                                                         "%s: line %d: %s\n",
1095                                                         fname, lineno, buf );
1096                                                 goto fail;
1097                                         }
1098
1099                                         if( bdn->a_at->ad_type->sat_equality == NULL ) {
1100                                                 Debug( LDAP_DEBUG_ANY,
1101                                                         "%s: line %d: dnattr \"%s\": "
1102                                                         "inappropriate matching (no EQUALITY)\n",
1103                                                         fname, lineno, right );
1104                                                 goto fail;
1105                                         }
1106
1107                                         continue;
1108                                 }
1109
1110                                 if ( strncasecmp( left, "group", STRLENOF( "group" ) ) == 0 ) {
1111                                         char *name = NULL;
1112                                         char *value = NULL;
1113                                         char *attr_name = SLAPD_GROUP_ATTR;
1114
1115                                         switch ( sty ) {
1116                                         case ACL_STYLE_REGEX:
1117                                                 /* legacy, tolerated */
1118                                                 Debug( LDAP_DEBUG_CONFIG | LDAP_DEBUG_ACL,
1119                                                         "%s: line %d: "
1120                                                         "deprecated group style \"regex\"; "
1121                                                         "use \"expand\" instead.\n",
1122                                                         fname, lineno, 0 );
1123                                                 sty = ACL_STYLE_EXPAND;
1124                                                 break;
1125
1126                                         case ACL_STYLE_BASE:
1127                                                 /* legal, traditional */
1128                                         case ACL_STYLE_EXPAND:
1129                                                 /* legal, substring expansion; supersedes regex */
1130                                                 break;
1131
1132                                         default:
1133                                                 /* unknown */
1134                                                 Debug( LDAP_DEBUG_ANY,
1135                                                         "%s: line %d: "
1136                                                         "inappropriate style \"%s\" in by clause.\n",
1137                                                         fname, lineno, style );
1138                                                 goto fail;
1139                                         }
1140
1141                                         if ( right == NULL || right[0] == '\0' ) {
1142                                                 Debug( LDAP_DEBUG_ANY,
1143                                                         "%s: line %d: "
1144                                                         "missing \"=\" in (or value after) \"%s\" "
1145                                                         "in by clause.\n",
1146                                                         fname, lineno, left );
1147                                                 goto fail;
1148                                         }
1149
1150                                         if ( !BER_BVISEMPTY( &b->a_group_pat ) ) {
1151                                                 Debug( LDAP_DEBUG_ANY,
1152                                                         "%s: line %d: group pattern already specified.\n",
1153                                                         fname, lineno, 0 );
1154                                                 goto fail;
1155                                         }
1156
1157                                         /* format of string is
1158                                                 "group/objectClassValue/groupAttrName" */
1159                                         if ( ( value = strchr(left, '/') ) != NULL ) {
1160                                                 *value++ = '\0';
1161                                                 if ( *value && ( name = strchr( value, '/' ) ) != NULL ) {
1162                                                         *name++ = '\0';
1163                                                 }
1164                                         }
1165
1166                                         b->a_group_style = sty;
1167                                         if ( sty == ACL_STYLE_EXPAND ) {
1168                                                 acl_regex_normalized_dn( right, &bv );
1169                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
1170                                                         regtest( fname, lineno, bv.bv_val );
1171                                                 }
1172                                                 b->a_group_pat = bv;
1173
1174                                         } else {
1175                                                 ber_str2bv( right, 0, 0, &bv );
1176                                                 rc = dnNormalize( 0, NULL, NULL, &bv,
1177                                                         &b->a_group_pat, NULL );
1178                                                 if ( rc != LDAP_SUCCESS ) {
1179                                                         Debug( LDAP_DEBUG_ANY,
1180                                                                 "%s: line %d: bad DN \"%s\".\n",
1181                                                                 fname, lineno, right );
1182                                                         goto fail;
1183                                                 }
1184                                         }
1185
1186                                         if ( value && *value ) {
1187                                                 b->a_group_oc = oc_find( value );
1188                                                 *--value = '/';
1189
1190                                                 if ( b->a_group_oc == NULL ) {
1191                                                         Debug( LDAP_DEBUG_ANY,
1192                                                                 "%s: line %d: group objectclass "
1193                                                                 "\"%s\" unknown.\n",
1194                                                                 fname, lineno, value );
1195                                                         goto fail;
1196                                                 }
1197
1198                                         } else {
1199                                                 b->a_group_oc = oc_find( SLAPD_GROUP_CLASS );
1200
1201                                                 if( b->a_group_oc == NULL ) {
1202                                                         Debug( LDAP_DEBUG_ANY,
1203                                                                 "%s: line %d: group default objectclass "
1204                                                                 "\"%s\" unknown.\n",
1205                                                                 fname, lineno, SLAPD_GROUP_CLASS );
1206                                                         goto fail;
1207                                                 }
1208                                         }
1209
1210                                         if ( is_object_subclass( slap_schema.si_oc_referral,
1211                                                 b->a_group_oc ) )
1212                                         {
1213                                                 Debug( LDAP_DEBUG_ANY,
1214                                                         "%s: line %d: group objectclass \"%s\" "
1215                                                         "is subclass of referral.\n",
1216                                                         fname, lineno, value );
1217                                                 goto fail;
1218                                         }
1219
1220                                         if ( is_object_subclass( slap_schema.si_oc_alias,
1221                                                 b->a_group_oc ) )
1222                                         {
1223                                                 Debug( LDAP_DEBUG_ANY,
1224                                                         "%s: line %d: group objectclass \"%s\" "
1225                                                         "is subclass of alias.\n",
1226                                                         fname, lineno, value );
1227                                                 goto fail;
1228                                         }
1229
1230                                         if ( name && *name ) {
1231                                                 attr_name = name;
1232                                                 *--name = '/';
1233
1234                                         }
1235
1236                                         rc = slap_str2ad( attr_name, &b->a_group_at, &text );
1237                                         if ( rc != LDAP_SUCCESS ) {
1238                                                 char    buf[ SLAP_TEXT_BUFLEN ];
1239
1240                                                 snprintf( buf, sizeof( buf ),
1241                                                         "group \"%s\": %s.",
1242                                                         right, text );
1243                                                 Debug( LDAP_DEBUG_ANY,
1244                                                         "%s: line %d: %s\n",
1245                                                         fname, lineno, buf );
1246                                                 goto fail;
1247                                         }
1248
1249                                         if ( !is_at_syntax( b->a_group_at->ad_type,
1250                                                         SLAPD_DN_SYNTAX ) /* e.g. "member" */
1251                                                 && !is_at_syntax( b->a_group_at->ad_type,
1252                                                         SLAPD_NAMEUID_SYNTAX ) /* e.g. memberUID */
1253                                                 && !is_at_subtype( b->a_group_at->ad_type,
1254                                                         slap_schema.si_ad_labeledURI->ad_type ) /* e.g. memberURL */ )
1255                                         {
1256                                                 char    buf[ SLAP_TEXT_BUFLEN ];
1257
1258                                                 snprintf( buf, sizeof( buf ),
1259                                                         "group \"%s\" attr \"%s\": inappropriate syntax: %s; "
1260                                                         "must be " SLAPD_DN_SYNTAX " (DN), "
1261                                                         SLAPD_NAMEUID_SYNTAX " (NameUID) "
1262                                                         "or a subtype of labeledURI.",
1263                                                         right,
1264                                                         attr_name,
1265                                                         at_syntax( b->a_group_at->ad_type ) );
1266                                                 Debug( LDAP_DEBUG_ANY,
1267                                                         "%s: line %d: %s\n",
1268                                                         fname, lineno, buf );
1269                                                 goto fail;
1270                                         }
1271
1272
1273                                         {
1274                                                 int rc;
1275                                                 ObjectClass *ocs[2];
1276
1277                                                 ocs[0] = b->a_group_oc;
1278                                                 ocs[1] = NULL;
1279
1280                                                 rc = oc_check_allowed( b->a_group_at->ad_type,
1281                                                         ocs, NULL );
1282
1283                                                 if( rc != 0 ) {
1284                                                         char    buf[ SLAP_TEXT_BUFLEN ];
1285
1286                                                         snprintf( buf, sizeof( buf ),
1287                                                                 "group: \"%s\" not allowed by \"%s\".",
1288                                                                 b->a_group_at->ad_cname.bv_val,
1289                                                                 b->a_group_oc->soc_oid );
1290                                                         Debug( LDAP_DEBUG_ANY, "%s: line %d: %s\n",
1291                                                                 fname, lineno, buf );
1292                                                         goto fail;
1293                                                 }
1294                                         }
1295                                         continue;
1296                                 }
1297
1298                                 if ( strcasecmp( left, "peername" ) == 0 ) {
1299                                         switch ( sty ) {
1300                                         case ACL_STYLE_REGEX:
1301                                         case ACL_STYLE_BASE:
1302                                                 /* legal, traditional */
1303                                         case ACL_STYLE_EXPAND:
1304                                                 /* cheap replacement to regex for simple expansion */
1305                                         case ACL_STYLE_IP:
1306                                         case ACL_STYLE_IPV6:
1307                                         case ACL_STYLE_PATH:
1308                                                 /* legal, peername specific */
1309                                                 break;
1310
1311                                         default:
1312                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1313                                                         "inappropriate style \"%s\" in by clause.\n",
1314                                                     fname, lineno, style );
1315                                                 goto fail;
1316                                         }
1317
1318                                         if ( right == NULL || right[0] == '\0' ) {
1319                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1320                                                         "missing \"=\" in (or value after) \"%s\" "
1321                                                         "in by clause.\n",
1322                                                         fname, lineno, left );
1323                                                 goto fail;
1324                                         }
1325
1326                                         if ( !BER_BVISEMPTY( &b->a_peername_pat ) ) {
1327                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1328                                                         "peername pattern already specified.\n",
1329                                                         fname, lineno, 0 );
1330                                                 goto fail;
1331                                         }
1332
1333                                         b->a_peername_style = sty;
1334                                         if ( sty == ACL_STYLE_REGEX ) {
1335                                                 acl_regex_normalized_dn( right, &bv );
1336                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
1337                                                         regtest( fname, lineno, bv.bv_val );
1338                                                 }
1339                                                 b->a_peername_pat = bv;
1340
1341                                         } else {
1342                                                 ber_str2bv( right, 0, 1, &b->a_peername_pat );
1343
1344                                                 if ( sty == ACL_STYLE_IP ) {
1345                                                         char            *addr = NULL,
1346                                                                         *mask = NULL,
1347                                                                         *port = NULL;
1348
1349                                                         split( right, '{', &addr, &port );
1350                                                         split( addr, '%', &addr, &mask );
1351
1352                                                         b->a_peername_addr = inet_addr( addr );
1353                                                         if ( b->a_peername_addr == (unsigned long)(-1) ) {
1354                                                                 /* illegal address */
1355                                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1356                                                                         "illegal peername address \"%s\".\n",
1357                                                                         fname, lineno, addr );
1358                                                                 goto fail;
1359                                                         }
1360
1361                                                         b->a_peername_mask = (unsigned long)(-1);
1362                                                         if ( mask != NULL ) {
1363                                                                 b->a_peername_mask = inet_addr( mask );
1364                                                                 if ( b->a_peername_mask ==
1365                                                                         (unsigned long)(-1) )
1366                                                                 {
1367                                                                         /* illegal mask */
1368                                                                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1369                                                                                 "illegal peername address mask "
1370                                                                                 "\"%s\".\n",
1371                                                                                 fname, lineno, mask );
1372                                                                         goto fail;
1373                                                                 }
1374                                                         }
1375
1376                                                         b->a_peername_port = -1;
1377                                                         if ( port ) {
1378                                                                 char    *end = NULL;
1379
1380                                                                 b->a_peername_port = strtol( port, &end, 10 );
1381                                                                 if ( end == port || end[0] != '}' ) {
1382                                                                         /* illegal port */
1383                                                                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1384                                                                                 "illegal peername port specification "
1385                                                                                 "\"{%s}\".\n",
1386                                                                                 fname, lineno, port );
1387                                                                         goto fail;
1388                                                                 }
1389                                                         }
1390
1391 #ifdef LDAP_PF_INET6
1392                                                 } else if ( sty == ACL_STYLE_IPV6 ) {
1393                                                         char            *addr = NULL,
1394                                                                         *mask = NULL,
1395                                                                         *port = NULL;
1396
1397                                                         split( right, '{', &addr, &port );
1398                                                         split( addr, '%', &addr, &mask );
1399
1400                                                         if ( inet_pton( AF_INET6, addr, &b->a_peername_addr6 ) != 1 ) {
1401                                                                 /* illegal address */
1402                                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1403                                                                         "illegal peername address \"%s\".\n",
1404                                                                         fname, lineno, addr );
1405                                                                 goto fail;
1406                                                         }
1407
1408                                                         if ( mask == NULL ) {
1409                                                                 mask = "FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF";
1410                                                         }
1411
1412                                                         if ( inet_pton( AF_INET6, mask, &b->a_peername_mask6 ) != 1 ) {
1413                                                                 /* illegal mask */
1414                                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1415                                                                         "illegal peername address mask "
1416                                                                         "\"%s\".\n",
1417                                                                         fname, lineno, mask );
1418                                                                 goto fail;
1419                                                         }
1420
1421                                                         b->a_peername_port = -1;
1422                                                         if ( port ) {
1423                                                                 char    *end = NULL;
1424
1425                                                                 b->a_peername_port = strtol( port, &end, 10 );
1426                                                                 if ( end == port || end[0] != '}' ) {
1427                                                                         /* illegal port */
1428                                                                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1429                                                                                 "illegal peername port specification "
1430                                                                                 "\"{%s}\".\n",
1431                                                                                 fname, lineno, port );
1432                                                                         goto fail;
1433                                                                 }
1434                                                         }
1435 #endif /* LDAP_PF_INET6 */
1436                                                 }
1437                                         }
1438                                         continue;
1439                                 }
1440
1441                                 if ( strcasecmp( left, "sockname" ) == 0 ) {
1442                                         switch ( sty ) {
1443                                         case ACL_STYLE_REGEX:
1444                                         case ACL_STYLE_BASE:
1445                                                 /* legal, traditional */
1446                                         case ACL_STYLE_EXPAND:
1447                                                 /* cheap replacement to regex for simple expansion */
1448                                                 break;
1449
1450                                         default:
1451                                                 /* unknown */
1452                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1453                                                         "inappropriate style \"%s\" in by clause\n",
1454                                                     fname, lineno, style );
1455                                                 goto fail;
1456                                         }
1457
1458                                         if ( right == NULL || right[0] == '\0' ) {
1459                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1460                                                         "missing \"=\" in (or value after) \"%s\" "
1461                                                         "in by clause\n",
1462                                                         fname, lineno, left );
1463                                                 goto fail;
1464                                         }
1465
1466                                         if ( !BER_BVISNULL( &b->a_sockname_pat ) ) {
1467                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1468                                                         "sockname pattern already specified.\n",
1469                                                         fname, lineno, 0 );
1470                                                 goto fail;
1471                                         }
1472
1473                                         b->a_sockname_style = sty;
1474                                         if ( sty == ACL_STYLE_REGEX ) {
1475                                                 acl_regex_normalized_dn( right, &bv );
1476                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
1477                                                         regtest( fname, lineno, bv.bv_val );
1478                                                 }
1479                                                 b->a_sockname_pat = bv;
1480
1481                                         } else {
1482                                                 ber_str2bv( right, 0, 1, &b->a_sockname_pat );
1483                                         }
1484                                         continue;
1485                                 }
1486
1487                                 if ( strcasecmp( left, "domain" ) == 0 ) {
1488                                         switch ( sty ) {
1489                                         case ACL_STYLE_REGEX:
1490                                         case ACL_STYLE_BASE:
1491                                         case ACL_STYLE_SUBTREE:
1492                                                 /* legal, traditional */
1493                                                 break;
1494
1495                                         case ACL_STYLE_EXPAND:
1496                                                 /* tolerated: means exact,expand */
1497                                                 if ( expand ) {
1498                                                         Debug( LDAP_DEBUG_ANY,
1499                                                                 "%s: line %d: "
1500                                                                 "\"expand\" modifier "
1501                                                                 "with \"expand\" style.\n",
1502                                                                 fname, lineno, 0 );
1503                                                 }
1504                                                 sty = ACL_STYLE_BASE;
1505                                                 expand = 1;
1506                                                 break;
1507
1508                                         default:
1509                                                 /* unknown */
1510                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1511                                                         "inappropriate style \"%s\" in by clause.\n",
1512                                                     fname, lineno, style );
1513                                                 goto fail;
1514                                         }
1515
1516                                         if ( right == NULL || right[0] == '\0' ) {
1517                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1518                                                         "missing \"=\" in (or value after) \"%s\" "
1519                                                         "in by clause.\n",
1520                                                         fname, lineno, left );
1521                                                 goto fail;
1522                                         }
1523
1524                                         if ( !BER_BVISEMPTY( &b->a_domain_pat ) ) {
1525                                                 Debug( LDAP_DEBUG_ANY,
1526                                                         "%s: line %d: domain pattern already specified.\n",
1527                                                         fname, lineno, 0 );
1528                                                 goto fail;
1529                                         }
1530
1531                                         b->a_domain_style = sty;
1532                                         b->a_domain_expand = expand;
1533                                         if ( sty == ACL_STYLE_REGEX ) {
1534                                                 acl_regex_normalized_dn( right, &bv );
1535                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
1536                                                         regtest( fname, lineno, bv.bv_val );
1537                                                 }
1538                                                 b->a_domain_pat = bv;
1539
1540                                         } else {
1541                                                 ber_str2bv( right, 0, 1, &b->a_domain_pat );
1542                                         }
1543                                         continue;
1544                                 }
1545
1546                                 if ( strcasecmp( left, "sockurl" ) == 0 ) {
1547                                         switch ( sty ) {
1548                                         case ACL_STYLE_REGEX:
1549                                         case ACL_STYLE_BASE:
1550                                                 /* legal, traditional */
1551                                         case ACL_STYLE_EXPAND:
1552                                                 /* cheap replacement to regex for simple expansion */
1553                                                 break;
1554
1555                                         default:
1556                                                 /* unknown */
1557                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1558                                                         "inappropriate style \"%s\" in by clause.\n",
1559                                                     fname, lineno, style );
1560                                                 goto fail;
1561                                         }
1562
1563                                         if ( right == NULL || right[0] == '\0' ) {
1564                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1565                                                         "missing \"=\" in (or value after) \"%s\" "
1566                                                         "in by clause.\n",
1567                                                         fname, lineno, left );
1568                                                 goto fail;
1569                                         }
1570
1571                                         if ( !BER_BVISEMPTY( &b->a_sockurl_pat ) ) {
1572                                                 Debug( LDAP_DEBUG_ANY,
1573                                                         "%s: line %d: sockurl pattern already specified.\n",
1574                                                         fname, lineno, 0 );
1575                                                 goto fail;
1576                                         }
1577
1578                                         b->a_sockurl_style = sty;
1579                                         if ( sty == ACL_STYLE_REGEX ) {
1580                                                 acl_regex_normalized_dn( right, &bv );
1581                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
1582                                                         regtest( fname, lineno, bv.bv_val );
1583                                                 }
1584                                                 b->a_sockurl_pat = bv;
1585
1586                                         } else {
1587                                                 ber_str2bv( right, 0, 1, &b->a_sockurl_pat );
1588                                         }
1589                                         continue;
1590                                 }
1591
1592                                 if ( strcasecmp( left, "set" ) == 0 ) {
1593                                         switch ( sty ) {
1594                                                 /* deprecated */
1595                                         case ACL_STYLE_REGEX:
1596                                                 Debug( LDAP_DEBUG_CONFIG | LDAP_DEBUG_ACL,
1597                                                         "%s: line %d: "
1598                                                         "deprecated set style "
1599                                                         "\"regex\" in <by> clause; "
1600                                                         "use \"expand\" instead.\n",
1601                                                         fname, lineno, 0 );
1602                                                 sty = ACL_STYLE_EXPAND;
1603                                                 /* FALLTHRU */
1604
1605                                         case ACL_STYLE_BASE:
1606                                         case ACL_STYLE_EXPAND:
1607                                                 break;
1608
1609                                         default:
1610                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1611                                                         "inappropriate style \"%s\" in by clause.\n",
1612                                                         fname, lineno, style );
1613                                                 goto fail;
1614                                         }
1615
1616                                         if ( !BER_BVISEMPTY( &b->a_set_pat ) ) {
1617                                                 Debug( LDAP_DEBUG_ANY,
1618                                                         "%s: line %d: set attribute already specified.\n",
1619                                                         fname, lineno, 0 );
1620                                                 goto fail;
1621                                         }
1622
1623                                         if ( right == NULL || *right == '\0' ) {
1624                                                 Debug( LDAP_DEBUG_ANY,
1625                                                         "%s: line %d: no set is defined.\n",
1626                                                         fname, lineno, 0 );
1627                                                 goto fail;
1628                                         }
1629
1630                                         b->a_set_style = sty;
1631                                         ber_str2bv( right, 0, 1, &b->a_set_pat );
1632
1633                                         continue;
1634                                 }
1635
1636 #ifdef SLAP_DYNACL
1637                                 {
1638                                         char            *name = NULL,
1639                                                         *opts = NULL;
1640
1641 #if 1 /* tolerate legacy "aci" <who> */
1642                                         if ( strcasecmp( left, "aci" ) == 0 ) {
1643                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1644                                                         "undocumented deprecated \"aci\" directive "
1645                                                         "is superseded by \"dynacl/aci\".\n",
1646                                                         fname, lineno, 0 );
1647                                                 name = "aci";
1648
1649                                         } else
1650 #endif /* tolerate legacy "aci" <who> */
1651                                         if ( strncasecmp( left, "dynacl/", STRLENOF( "dynacl/" ) ) == 0 ) {
1652                                                 name = &left[ STRLENOF( "dynacl/" ) ];
1653                                                 opts = strchr( name, '/' );
1654                                                 if ( opts ) {
1655                                                         opts[ 0 ] = '\0';
1656                                                         opts++;
1657                                                 }
1658                                         }
1659
1660                                         if ( name ) {
1661                                                 if ( slap_dynacl_config( fname, lineno, b, name, opts, sty, right ) ) {
1662                                                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1663                                                                 "unable to configure dynacl \"%s\".\n",
1664                                                                 fname, lineno, name );
1665                                                         goto fail;
1666                                                 }
1667
1668                                                 continue;
1669                                         }
1670                                 }
1671 #endif /* SLAP_DYNACL */
1672
1673                                 if ( strcasecmp( left, "ssf" ) == 0 ) {
1674                                         if ( sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE ) {
1675                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1676                                                         "inappropriate style \"%s\" in by clause.\n",
1677                                                     fname, lineno, style );
1678                                                 goto fail;
1679                                         }
1680
1681                                         if ( b->a_authz.sai_ssf ) {
1682                                                 Debug( LDAP_DEBUG_ANY,
1683                                                         "%s: line %d: ssf attribute already specified.\n",
1684                                                         fname, lineno, 0 );
1685                                                 goto fail;
1686                                         }
1687
1688                                         if ( right == NULL || *right == '\0' ) {
1689                                                 Debug( LDAP_DEBUG_ANY,
1690                                                         "%s: line %d: no ssf is defined.\n",
1691                                                         fname, lineno, 0 );
1692                                                 goto fail;
1693                                         }
1694
1695                                         if ( lutil_atou( &b->a_authz.sai_ssf, right ) != 0 ) {
1696                                                 Debug( LDAP_DEBUG_ANY,
1697                                                         "%s: line %d: unable to parse ssf value (%s).\n",
1698                                                         fname, lineno, right );
1699                                                 goto fail;
1700                                         }
1701
1702                                         if ( !b->a_authz.sai_ssf ) {
1703                                                 Debug( LDAP_DEBUG_ANY,
1704                                                         "%s: line %d: invalid ssf value (%s).\n",
1705                                                         fname, lineno, right );
1706                                                 goto fail;
1707                                         }
1708                                         continue;
1709                                 }
1710
1711                                 if ( strcasecmp( left, "transport_ssf" ) == 0 ) {
1712                                         if ( sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE ) {
1713                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1714                                                         "inappropriate style \"%s\" in by clause.\n",
1715                                                         fname, lineno, style );
1716                                                 goto fail;
1717                                         }
1718
1719                                         if ( b->a_authz.sai_transport_ssf ) {
1720                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1721                                                         "transport_ssf attribute already specified.\n",
1722                                                         fname, lineno, 0 );
1723                                                 goto fail;
1724                                         }
1725
1726                                         if ( right == NULL || *right == '\0' ) {
1727                                                 Debug( LDAP_DEBUG_ANY,
1728                                                         "%s: line %d: no transport_ssf is defined.\n",
1729                                                         fname, lineno, 0 );
1730                                                 goto fail;
1731                                         }
1732
1733                                         if ( lutil_atou( &b->a_authz.sai_transport_ssf, right ) != 0 ) {
1734                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1735                                                         "unable to parse transport_ssf value (%s).\n",
1736                                                         fname, lineno, right );
1737                                                 goto fail;
1738                                         }
1739
1740                                         if ( !b->a_authz.sai_transport_ssf ) {
1741                                                 Debug( LDAP_DEBUG_ANY,
1742                                                         "%s: line %d: invalid transport_ssf value (%s).\n",
1743                                                         fname, lineno, right );
1744                                                 goto fail;
1745                                         }
1746                                         continue;
1747                                 }
1748
1749                                 if ( strcasecmp( left, "tls_ssf" ) == 0 ) {
1750                                         if ( sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE ) {
1751                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1752                                                         "inappropriate style \"%s\" in by clause.\n",
1753                                                         fname, lineno, style );
1754                                                 goto fail;
1755                                         }
1756
1757                                         if ( b->a_authz.sai_tls_ssf ) {
1758                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1759                                                         "tls_ssf attribute already specified.\n",
1760                                                         fname, lineno, 0 );
1761                                                 goto fail;
1762                                         }
1763
1764                                         if ( right == NULL || *right == '\0' ) {
1765                                                 Debug( LDAP_DEBUG_ANY,
1766                                                         "%s: line %d: no tls_ssf is defined\n",
1767                                                         fname, lineno, 0 );
1768                                                 goto fail;
1769                                         }
1770
1771                                         if ( lutil_atou( &b->a_authz.sai_tls_ssf, right ) != 0 ) {
1772                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1773                                                         "unable to parse tls_ssf value (%s).\n",
1774                                                         fname, lineno, right );
1775                                                 goto fail;
1776                                         }
1777
1778                                         if ( !b->a_authz.sai_tls_ssf ) {
1779                                                 Debug( LDAP_DEBUG_ANY,
1780                                                         "%s: line %d: invalid tls_ssf value (%s).\n",
1781                                                         fname, lineno, right );
1782                                                 goto fail;
1783                                         }
1784                                         continue;
1785                                 }
1786
1787                                 if ( strcasecmp( left, "sasl_ssf" ) == 0 ) {
1788                                         if ( sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE ) {
1789                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1790                                                         "inappropriate style \"%s\" in by clause.\n",
1791                                                         fname, lineno, style );
1792                                                 goto fail;
1793                                         }
1794
1795                                         if ( b->a_authz.sai_sasl_ssf ) {
1796                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1797                                                         "sasl_ssf attribute already specified.\n",
1798                                                         fname, lineno, 0 );
1799                                                 goto fail;
1800                                         }
1801
1802                                         if ( right == NULL || *right == '\0' ) {
1803                                                 Debug( LDAP_DEBUG_ANY,
1804                                                         "%s: line %d: no sasl_ssf is defined.\n",
1805                                                         fname, lineno, 0 );
1806                                                 goto fail;
1807                                         }
1808
1809                                         if ( lutil_atou( &b->a_authz.sai_sasl_ssf, right ) != 0 ) {
1810                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1811                                                         "unable to parse sasl_ssf value (%s).\n",
1812                                                         fname, lineno, right );
1813                                                 goto fail;
1814                                         }
1815
1816                                         if ( !b->a_authz.sai_sasl_ssf ) {
1817                                                 Debug( LDAP_DEBUG_ANY,
1818                                                         "%s: line %d: invalid sasl_ssf value (%s).\n",
1819                                                         fname, lineno, right );
1820                                                 goto fail;
1821                                         }
1822                                         continue;
1823                                 }
1824
1825                                 if ( right != NULL ) {
1826                                         /* unsplit */
1827                                         right[-1] = '=';
1828                                 }
1829                                 break;
1830                         }
1831
1832                         if ( i == argc || ( strcasecmp( left, "stop" ) == 0 ) ) {
1833                                 /* out of arguments or plain stop */
1834
1835                                 ACL_PRIV_ASSIGN( b->a_access_mask, ACL_PRIV_ADDITIVE );
1836                                 ACL_PRIV_SET( b->a_access_mask, ACL_PRIV_NONE);
1837                                 b->a_type = ACL_STOP;
1838
1839                                 access_append( &a->acl_access, b );
1840                                 continue;
1841                         }
1842
1843                         if ( strcasecmp( left, "continue" ) == 0 ) {
1844                                 /* plain continue */
1845
1846                                 ACL_PRIV_ASSIGN( b->a_access_mask, ACL_PRIV_ADDITIVE );
1847                                 ACL_PRIV_SET( b->a_access_mask, ACL_PRIV_NONE);
1848                                 b->a_type = ACL_CONTINUE;
1849
1850                                 access_append( &a->acl_access, b );
1851                                 continue;
1852                         }
1853
1854                         if ( strcasecmp( left, "break" ) == 0 ) {
1855                                 /* plain continue */
1856
1857                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
1858                                 ACL_PRIV_SET( b->a_access_mask, ACL_PRIV_NONE);
1859                                 b->a_type = ACL_BREAK;
1860
1861                                 access_append( &a->acl_access, b );
1862                                 continue;
1863                         }
1864
1865                         if ( strcasecmp( left, "by" ) == 0 ) {
1866                                 /* we've gone too far */
1867                                 --i;
1868                                 ACL_PRIV_ASSIGN( b->a_access_mask, ACL_PRIV_ADDITIVE );
1869                                 ACL_PRIV_SET( b->a_access_mask, ACL_PRIV_NONE);
1870                                 b->a_type = ACL_STOP;
1871
1872                                 access_append( &a->acl_access, b );
1873                                 continue;
1874                         }
1875
1876                         /* get <access> */
1877                         {
1878                                 char    *lleft = left;
1879
1880                                 if ( strncasecmp( left, "self", STRLENOF( "self" ) ) == 0 ) {
1881                                         b->a_dn_self = 1;
1882                                         lleft = &left[ STRLENOF( "self" ) ];
1883
1884                                 } else if ( strncasecmp( left, "realself", STRLENOF( "realself" ) ) == 0 ) {
1885                                         b->a_realdn_self = 1;
1886                                         lleft = &left[ STRLENOF( "realself" ) ];
1887                                 }
1888
1889                                 ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( lleft ) );
1890                         }
1891
1892                         if ( ACL_IS_INVALID( b->a_access_mask ) ) {
1893                                 Debug( LDAP_DEBUG_ANY,
1894                                         "%s: line %d: expecting <access> got \"%s\".\n",
1895                                         fname, lineno, left );
1896                                 goto fail;
1897                         }
1898
1899                         b->a_type = ACL_STOP;
1900
1901                         if ( ++i == argc ) {
1902                                 /* out of arguments or plain stop */
1903                                 access_append( &a->acl_access, b );
1904                                 continue;
1905                         }
1906
1907                         if ( strcasecmp( argv[i], "continue" ) == 0 ) {
1908                                 /* plain continue */
1909                                 b->a_type = ACL_CONTINUE;
1910
1911                         } else if ( strcasecmp( argv[i], "break" ) == 0 ) {
1912                                 /* plain continue */
1913                                 b->a_type = ACL_BREAK;
1914
1915                         } else if ( strcasecmp( argv[i], "stop" ) != 0 ) {
1916                                 /* gone to far */
1917                                 i--;
1918                         }
1919
1920                         access_append( &a->acl_access, b );
1921                         b = NULL;
1922
1923                 } else {
1924                         Debug( LDAP_DEBUG_ANY,
1925                                 "%s: line %d: expecting \"to\" "
1926                                 "or \"by\" got \"%s\"\n",
1927                                 fname, lineno, argv[i] );
1928                         goto fail;
1929                 }
1930         }
1931
1932         /* if we have no real access clause, complain and do nothing */
1933         if ( a == NULL ) {
1934                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1935                         "warning: no access clause(s) specified in access line.\n",
1936                         fname, lineno, 0 );
1937                 goto fail;
1938
1939         } else {
1940 #ifdef LDAP_DEBUG
1941                 if ( slap_debug & LDAP_DEBUG_ACL ) {
1942                         print_acl( be, a );
1943                 }
1944 #endif
1945
1946                 if ( a->acl_access == NULL ) {
1947                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1948                                 "warning: no by clause(s) specified in access line.\n",
1949                                 fname, lineno, 0 );
1950                         goto fail;
1951                 }
1952
1953                 if ( be != NULL ) {
1954                         if ( be->be_nsuffix == NULL ) {
1955                                 Debug( LDAP_DEBUG_ACL, "%s: line %d: warning: "
1956                                         "scope checking needs suffix before ACLs.\n",
1957                                         fname, lineno, 0 );
1958                                 /* go ahead, since checking is not authoritative */
1959                         } else if ( !BER_BVISNULL( &be->be_nsuffix[ 1 ] ) ) {
1960                                 Debug( LDAP_DEBUG_ACL, "%s: line %d: warning: "
1961                                         "scope checking only applies to single-valued "
1962                                         "suffix databases\n",
1963                                         fname, lineno, 0 );
1964                                 /* go ahead, since checking is not authoritative */
1965                         } else {
1966                                 switch ( check_scope( be, a ) ) {
1967                                 case ACL_SCOPE_UNKNOWN:
1968                                         Debug( LDAP_DEBUG_ACL, "%s: line %d: warning: "
1969                                                 "cannot assess the validity of the ACL scope within "
1970                                                 "backend naming context\n",
1971                                                 fname, lineno, 0 );
1972                                         break;
1973
1974                                 case ACL_SCOPE_WARN:
1975                                         Debug( LDAP_DEBUG_ACL, "%s: line %d: warning: "
1976                                                 "ACL could be out of scope within backend naming context\n",
1977                                                 fname, lineno, 0 );
1978                                         break;
1979
1980                                 case ACL_SCOPE_PARTIAL:
1981                                         Debug( LDAP_DEBUG_ACL, "%s: line %d: warning: "
1982                                                 "ACL appears to be partially out of scope within "
1983                                                 "backend naming context\n",
1984                                                 fname, lineno, 0 );
1985                                         break;
1986
1987                                 case ACL_SCOPE_ERR:
1988                                         Debug( LDAP_DEBUG_ACL, "%s: line %d: warning: "
1989                                                 "ACL appears to be out of scope within "
1990                                                 "backend naming context\n",
1991                                                 fname, lineno, 0 );
1992                                         break;
1993
1994                                 default:
1995                                         break;
1996                                 }
1997                         }
1998                         acl_append( &be->be_acl, a, pos );
1999
2000                 } else {
2001                         acl_append( &frontendDB->be_acl, a, pos );
2002                 }
2003         }
2004
2005         return 0;
2006
2007 fail:
2008         if ( b ) access_free( b );
2009         if ( a ) acl_free( a );
2010         return acl_usage();
2011 }
2012
2013 char *
2014 accessmask2str( slap_mask_t mask, char *buf, int debug )
2015 {
2016         int     none = 1;
2017         char    *ptr = buf;
2018
2019         assert( buf != NULL );
2020
2021         if ( ACL_IS_INVALID( mask ) ) {
2022                 return "invalid";
2023         }
2024
2025         buf[0] = '\0';
2026
2027         if ( ACL_IS_LEVEL( mask ) ) {
2028                 if ( ACL_LVL_IS_NONE(mask) ) {
2029                         ptr = lutil_strcopy( ptr, "none" );
2030
2031                 } else if ( ACL_LVL_IS_DISCLOSE(mask) ) {
2032                         ptr = lutil_strcopy( ptr, "disclose" );
2033
2034                 } else if ( ACL_LVL_IS_AUTH(mask) ) {
2035                         ptr = lutil_strcopy( ptr, "auth" );
2036
2037                 } else if ( ACL_LVL_IS_COMPARE(mask) ) {
2038                         ptr = lutil_strcopy( ptr, "compare" );
2039
2040                 } else if ( ACL_LVL_IS_SEARCH(mask) ) {
2041                         ptr = lutil_strcopy( ptr, "search" );
2042
2043                 } else if ( ACL_LVL_IS_READ(mask) ) {
2044                         ptr = lutil_strcopy( ptr, "read" );
2045
2046                 } else if ( ACL_LVL_IS_WRITE(mask) ) {
2047                         ptr = lutil_strcopy( ptr, "write" );
2048
2049                 } else if ( ACL_LVL_IS_WADD(mask) ) {
2050                         ptr = lutil_strcopy( ptr, "add" );
2051
2052                 } else if ( ACL_LVL_IS_WDEL(mask) ) {
2053                         ptr = lutil_strcopy( ptr, "delete" );
2054
2055                 } else if ( ACL_LVL_IS_MANAGE(mask) ) {
2056                         ptr = lutil_strcopy( ptr, "manage" );
2057
2058                 } else {
2059                         ptr = lutil_strcopy( ptr, "unknown" );
2060                 }
2061
2062                 if ( !debug ) {
2063                         *ptr = '\0';
2064                         return buf;
2065                 }
2066                 *ptr++ = '(';
2067         }
2068
2069         if( ACL_IS_ADDITIVE( mask ) ) {
2070                 *ptr++ = '+';
2071
2072         } else if( ACL_IS_SUBTRACTIVE( mask ) ) {
2073                 *ptr++ = '-';
2074
2075         } else {
2076                 *ptr++ = '=';
2077         }
2078
2079         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_MANAGE) ) {
2080                 none = 0;
2081                 *ptr++ = 'm';
2082         }
2083
2084         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_WRITE) ) {
2085                 none = 0;
2086                 *ptr++ = 'w';
2087
2088         } else if ( ACL_PRIV_ISSET(mask, ACL_PRIV_WADD) ) {
2089                 none = 0;
2090                 *ptr++ = 'a';
2091
2092         } else if ( ACL_PRIV_ISSET(mask, ACL_PRIV_WDEL) ) {
2093                 none = 0;
2094                 *ptr++ = 'z';
2095         }
2096
2097         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_READ) ) {
2098                 none = 0;
2099                 *ptr++ = 'r';
2100         }
2101
2102         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_SEARCH) ) {
2103                 none = 0;
2104                 *ptr++ = 's';
2105         }
2106
2107         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_COMPARE) ) {
2108                 none = 0;
2109                 *ptr++ = 'c';
2110         }
2111
2112         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_AUTH) ) {
2113                 none = 0;
2114                 *ptr++ = 'x';
2115         }
2116
2117         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_DISCLOSE) ) {
2118                 none = 0;
2119                 *ptr++ = 'd';
2120         }
2121
2122         if ( none && ACL_PRIV_ISSET(mask, ACL_PRIV_NONE) ) {
2123                 none = 0;
2124                 *ptr++ = '0';
2125         }
2126
2127         if ( none ) {
2128                 ptr = buf;
2129         }
2130
2131         if ( ACL_IS_LEVEL( mask ) ) {
2132                 *ptr++ = ')';
2133         }
2134
2135         *ptr = '\0';
2136
2137         return buf;
2138 }
2139
2140 slap_mask_t
2141 str2accessmask( const char *str )
2142 {
2143         slap_mask_t     mask;
2144
2145         if( !ASCII_ALPHA(str[0]) ) {
2146                 int i;
2147
2148                 if ( str[0] == '=' ) {
2149                         ACL_INIT(mask);
2150
2151                 } else if( str[0] == '+' ) {
2152                         ACL_PRIV_ASSIGN(mask, ACL_PRIV_ADDITIVE);
2153
2154                 } else if( str[0] == '-' ) {
2155                         ACL_PRIV_ASSIGN(mask, ACL_PRIV_SUBSTRACTIVE);
2156
2157                 } else {
2158                         ACL_INVALIDATE(mask);
2159                         return mask;
2160                 }
2161
2162                 for( i=1; str[i] != '\0'; i++ ) {
2163                         if( TOLOWER((unsigned char) str[i]) == 'm' ) {
2164                                 ACL_PRIV_SET(mask, ACL_PRIV_MANAGE);
2165
2166                         } else if( TOLOWER((unsigned char) str[i]) == 'w' ) {
2167                                 ACL_PRIV_SET(mask, ACL_PRIV_WRITE);
2168
2169                         } else if( TOLOWER((unsigned char) str[i]) == 'a' ) {
2170                                 ACL_PRIV_SET(mask, ACL_PRIV_WADD);
2171
2172                         } else if( TOLOWER((unsigned char) str[i]) == 'z' ) {
2173                                 ACL_PRIV_SET(mask, ACL_PRIV_WDEL);
2174
2175                         } else if( TOLOWER((unsigned char) str[i]) == 'r' ) {
2176                                 ACL_PRIV_SET(mask, ACL_PRIV_READ);
2177
2178                         } else if( TOLOWER((unsigned char) str[i]) == 's' ) {
2179                                 ACL_PRIV_SET(mask, ACL_PRIV_SEARCH);
2180
2181                         } else if( TOLOWER((unsigned char) str[i]) == 'c' ) {
2182                                 ACL_PRIV_SET(mask, ACL_PRIV_COMPARE);
2183
2184                         } else if( TOLOWER((unsigned char) str[i]) == 'x' ) {
2185                                 ACL_PRIV_SET(mask, ACL_PRIV_AUTH);
2186
2187                         } else if( TOLOWER((unsigned char) str[i]) == 'd' ) {
2188                                 ACL_PRIV_SET(mask, ACL_PRIV_DISCLOSE);
2189
2190                         } else if( str[i] == '0' ) {
2191                                 ACL_PRIV_SET(mask, ACL_PRIV_NONE);
2192
2193                         } else {
2194                                 ACL_INVALIDATE(mask);
2195                                 return mask;
2196                         }
2197                 }
2198
2199                 return mask;
2200         }
2201
2202         if ( strcasecmp( str, "none" ) == 0 ) {
2203                 ACL_LVL_ASSIGN_NONE(mask);
2204
2205         } else if ( strcasecmp( str, "disclose" ) == 0 ) {
2206                 ACL_LVL_ASSIGN_DISCLOSE(mask);
2207
2208         } else if ( strcasecmp( str, "auth" ) == 0 ) {
2209                 ACL_LVL_ASSIGN_AUTH(mask);
2210
2211         } else if ( strcasecmp( str, "compare" ) == 0 ) {
2212                 ACL_LVL_ASSIGN_COMPARE(mask);
2213
2214         } else if ( strcasecmp( str, "search" ) == 0 ) {
2215                 ACL_LVL_ASSIGN_SEARCH(mask);
2216
2217         } else if ( strcasecmp( str, "read" ) == 0 ) {
2218                 ACL_LVL_ASSIGN_READ(mask);
2219
2220         } else if ( strcasecmp( str, "add" ) == 0 ) {
2221                 ACL_LVL_ASSIGN_WADD(mask);
2222
2223         } else if ( strcasecmp( str, "delete" ) == 0 ) {
2224                 ACL_LVL_ASSIGN_WDEL(mask);
2225
2226         } else if ( strcasecmp( str, "write" ) == 0 ) {
2227                 ACL_LVL_ASSIGN_WRITE(mask);
2228
2229         } else if ( strcasecmp( str, "manage" ) == 0 ) {
2230                 ACL_LVL_ASSIGN_MANAGE(mask);
2231
2232         } else {
2233                 ACL_INVALIDATE( mask );
2234         }
2235
2236         return mask;
2237 }
2238
2239 static int
2240 acl_usage( void )
2241 {
2242         char *access =
2243                 "<access clause> ::= access to <what> "
2244                                 "[ by <who> [ <access> ] [ <control> ] ]+ \n";
2245         char *what =
2246                 "<what> ::= * | dn[.<dnstyle>=<DN>] [filter=<filter>] [attrs=<attrspec>]\n"
2247                 "<attrspec> ::= <attrname> [val[/<matchingRule>][.<attrstyle>]=<value>] | <attrlist>\n"
2248                 "<attrlist> ::= <attr> [ , <attrlist> ]\n"
2249                 "<attr> ::= <attrname> | @<objectClass> | !<objectClass> | entry | children\n";
2250
2251         char *who =
2252                 "<who> ::= [ * | anonymous | users | self | dn[.<dnstyle>]=<DN> ]\n"
2253                         "\t[ realanonymous | realusers | realself | realdn[.<dnstyle>]=<DN> ]\n"
2254                         "\t[dnattr=<attrname>]\n"
2255                         "\t[realdnattr=<attrname>]\n"
2256                         "\t[group[/<objectclass>[/<attrname>]][.<style>]=<group>]\n"
2257                         "\t[peername[.<peernamestyle>]=<peer>] [sockname[.<style>]=<name>]\n"
2258                         "\t[domain[.<domainstyle>]=<domain>] [sockurl[.<style>]=<url>]\n"
2259 #ifdef SLAP_DYNACL
2260                         "\t[dynacl/<name>[/<options>][.<dynstyle>][=<pattern>]]\n"
2261 #endif /* SLAP_DYNACL */
2262                         "\t[ssf=<n>] [transport_ssf=<n>] [tls_ssf=<n>] [sasl_ssf=<n>]\n"
2263                 "<style> ::= exact | regex | base(Object)\n"
2264                 "<dnstyle> ::= base(Object) | one(level) | sub(tree) | children | "
2265                         "exact | regex\n"
2266                 "<attrstyle> ::= exact | regex | base(Object) | one(level) | "
2267                         "sub(tree) | children\n"
2268                 "<peernamestyle> ::= exact | regex | ip | ipv6 | path\n"
2269                 "<domainstyle> ::= exact | regex | base(Object) | sub(tree)\n"
2270                 "<access> ::= [[real]self]{<level>|<priv>}\n"
2271                 "<level> ::= none|disclose|auth|compare|search|read|{write|add|delete}|manage\n"
2272                 "<priv> ::= {=|+|-}{0|d|x|c|s|r|{w|a|z}|m}+\n"
2273                 "<control> ::= [ stop | continue | break ]\n"
2274 #ifdef SLAP_DYNACL
2275 #ifdef SLAPD_ACI_ENABLED
2276                 "dynacl:\n"
2277                 "\t<name>=ACI\t<pattern>=<attrname>\n"
2278 #endif /* SLAPD_ACI_ENABLED */
2279 #endif /* ! SLAP_DYNACL */
2280                 "";
2281
2282         Debug( LDAP_DEBUG_ANY, "%s%s%s\n", access, what, who );
2283
2284         return 1;
2285 }
2286
2287 /*
2288  * Set pattern to a "normalized" DN from src.
2289  * At present it simply eats the (optional) space after
2290  * a RDN separator (,)
2291  * Eventually will evolve in a more complete normalization
2292  */
2293 static void
2294 acl_regex_normalized_dn(
2295         const char *src,
2296         struct berval *pattern )
2297 {
2298         char *str, *p;
2299         ber_len_t len;
2300
2301         str = ch_strdup( src );
2302         len = strlen( src );
2303
2304         for ( p = str; p && p[0]; p++ ) {
2305                 /* escape */
2306                 if ( p[0] == '\\' && p[1] ) {
2307                         /*
2308                          * if escaping a hex pair we should
2309                          * increment p twice; however, in that
2310                          * case the second hex number does
2311                          * no harm
2312                          */
2313                         p++;
2314                 }
2315
2316                 if ( p[0] == ',' && p[1] == ' ' ) {
2317                         char *q;
2318
2319                         /*
2320                          * too much space should be an error if we are pedantic
2321                          */
2322                         for ( q = &p[2]; q[0] == ' '; q++ ) {
2323                                 /* DO NOTHING */ ;
2324                         }
2325                         AC_MEMCPY( p+1, q, len-(q-str)+1);
2326                 }
2327         }
2328         pattern->bv_val = str;
2329         pattern->bv_len = p - str;
2330
2331         return;
2332 }
2333
2334 static void
2335 split(
2336     char        *line,
2337     int         splitchar,
2338     char        **left,
2339     char        **right )
2340 {
2341         *left = line;
2342         if ( (*right = strchr( line, splitchar )) != NULL ) {
2343                 *((*right)++) = '\0';
2344         }
2345 }
2346
2347 static void
2348 access_append( Access **l, Access *a )
2349 {
2350         for ( ; *l != NULL; l = &(*l)->a_next ) {
2351                 ;       /* Empty */
2352         }
2353
2354         *l = a;
2355 }
2356
2357 void
2358 acl_append( AccessControl **l, AccessControl *a, int pos )
2359 {
2360         int i;
2361
2362         for (i=0 ; i != pos && *l != NULL; l = &(*l)->acl_next, i++ ) {
2363                 ;       /* Empty */
2364         }
2365         if ( *l && a )
2366                 a->acl_next = *l;
2367         *l = a;
2368 }
2369
2370 static void
2371 access_free( Access *a )
2372 {
2373         if ( !BER_BVISNULL( &a->a_dn_pat ) ) {
2374                 free( a->a_dn_pat.bv_val );
2375         }
2376         if ( !BER_BVISNULL( &a->a_realdn_pat ) ) {
2377                 free( a->a_realdn_pat.bv_val );
2378         }
2379         if ( !BER_BVISNULL( &a->a_peername_pat ) ) {
2380                 free( a->a_peername_pat.bv_val );
2381         }
2382         if ( !BER_BVISNULL( &a->a_sockname_pat ) ) {
2383                 free( a->a_sockname_pat.bv_val );
2384         }
2385         if ( !BER_BVISNULL( &a->a_domain_pat ) ) {
2386                 free( a->a_domain_pat.bv_val );
2387         }
2388         if ( !BER_BVISNULL( &a->a_sockurl_pat ) ) {
2389                 free( a->a_sockurl_pat.bv_val );
2390         }
2391         if ( !BER_BVISNULL( &a->a_set_pat ) ) {
2392                 free( a->a_set_pat.bv_val );
2393         }
2394         if ( !BER_BVISNULL( &a->a_group_pat ) ) {
2395                 free( a->a_group_pat.bv_val );
2396         }
2397 #ifdef SLAP_DYNACL
2398         if ( a->a_dynacl != NULL ) {
2399                 slap_dynacl_t   *da;
2400                 for ( da = a->a_dynacl; da; ) {
2401                         slap_dynacl_t   *tmp = da;
2402
2403                         da = da->da_next;
2404
2405                         if ( tmp->da_destroy ) {
2406                                 tmp->da_destroy( tmp->da_private );
2407                         }
2408
2409                         ch_free( tmp );
2410                 }
2411         }
2412 #endif /* SLAP_DYNACL */
2413         free( a );
2414 }
2415
2416 void
2417 acl_free( AccessControl *a )
2418 {
2419         Access *n;
2420         AttributeName *an;
2421
2422         if ( a->acl_filter ) {
2423                 filter_free( a->acl_filter );
2424         }
2425         if ( !BER_BVISNULL( &a->acl_dn_pat ) ) {
2426                 if ( a->acl_dn_style == ACL_STYLE_REGEX ) {
2427                         regfree( &a->acl_dn_re );
2428                 }
2429                 free ( a->acl_dn_pat.bv_val );
2430         }
2431         if ( a->acl_attrs ) {
2432                 for ( an = a->acl_attrs; !BER_BVISNULL( &an->an_name ); an++ ) {
2433                         free( an->an_name.bv_val );
2434                 }
2435                 free( a->acl_attrs );
2436
2437                 if ( a->acl_attrval_style == ACL_STYLE_REGEX ) {
2438                         regfree( &a->acl_attrval_re );
2439                 }
2440
2441                 if ( !BER_BVISNULL( &a->acl_attrval ) ) {
2442                         ber_memfree( a->acl_attrval.bv_val );
2443                 }
2444         }
2445         for ( ; a->acl_access; a->acl_access = n ) {
2446                 n = a->acl_access->a_next;
2447                 access_free( a->acl_access );
2448         }
2449         free( a );
2450 }
2451
2452 /* Because backend_startup uses acl_append to tack on the global_acl to
2453  * the end of each backend's acl, we cannot just take one argument and
2454  * merrily free our way to the end of the list. backend_destroy calls us
2455  * with the be_acl in arg1, and global_acl in arg2 to give us a stopping
2456  * point. config_destroy calls us with global_acl in arg1 and NULL in
2457  * arg2, so we then proceed to polish off the global_acl.
2458  */
2459 void
2460 acl_destroy( AccessControl *a, AccessControl *end )
2461 {
2462         AccessControl *n;
2463
2464         for ( ; a && a != end; a = n ) {
2465                 n = a->acl_next;
2466                 acl_free( a );
2467         }
2468 }
2469
2470 char *
2471 access2str( slap_access_t access )
2472 {
2473         if ( access == ACL_NONE ) {
2474                 return "none";
2475
2476         } else if ( access == ACL_DISCLOSE ) {
2477                 return "disclose";
2478
2479         } else if ( access == ACL_AUTH ) {
2480                 return "auth";
2481
2482         } else if ( access == ACL_COMPARE ) {
2483                 return "compare";
2484
2485         } else if ( access == ACL_SEARCH ) {
2486                 return "search";
2487
2488         } else if ( access == ACL_READ ) {
2489                 return "read";
2490
2491         } else if ( access == ACL_WRITE ) {
2492                 return "write";
2493
2494         } else if ( access == ACL_WADD ) {
2495                 return "add";
2496
2497         } else if ( access == ACL_WDEL ) {
2498                 return "delete";
2499
2500         } else if ( access == ACL_MANAGE ) {
2501                 return "manage";
2502
2503         }
2504
2505         return "unknown";
2506 }
2507
2508 slap_access_t
2509 str2access( const char *str )
2510 {
2511         if ( strcasecmp( str, "none" ) == 0 ) {
2512                 return ACL_NONE;
2513
2514         } else if ( strcasecmp( str, "disclose" ) == 0 ) {
2515                 return ACL_DISCLOSE;
2516
2517         } else if ( strcasecmp( str, "auth" ) == 0 ) {
2518                 return ACL_AUTH;
2519
2520         } else if ( strcasecmp( str, "compare" ) == 0 ) {
2521                 return ACL_COMPARE;
2522
2523         } else if ( strcasecmp( str, "search" ) == 0 ) {
2524                 return ACL_SEARCH;
2525
2526         } else if ( strcasecmp( str, "read" ) == 0 ) {
2527                 return ACL_READ;
2528
2529         } else if ( strcasecmp( str, "write" ) == 0 ) {
2530                 return ACL_WRITE;
2531
2532         } else if ( strcasecmp( str, "add" ) == 0 ) {
2533                 return ACL_WADD;
2534
2535         } else if ( strcasecmp( str, "delete" ) == 0 ) {
2536                 return ACL_WDEL;
2537
2538         } else if ( strcasecmp( str, "manage" ) == 0 ) {
2539                 return ACL_MANAGE;
2540         }
2541
2542         return( ACL_INVALID_ACCESS );
2543 }
2544
2545 #define ACLBUF_MAXLEN   8192
2546
2547 static char aclbuf[ACLBUF_MAXLEN];
2548
2549 static char *
2550 dnaccess2text( slap_dn_access *bdn, char *ptr, int is_realdn )
2551 {
2552         *ptr++ = ' ';
2553
2554         if ( is_realdn ) {
2555                 ptr = lutil_strcopy( ptr, "real" );
2556         }
2557
2558         if ( ber_bvccmp( &bdn->a_pat, '*' ) ||
2559                 bdn->a_style == ACL_STYLE_ANONYMOUS ||
2560                 bdn->a_style == ACL_STYLE_USERS ||
2561                 bdn->a_style == ACL_STYLE_SELF )
2562         {
2563                 if ( is_realdn ) {
2564                         assert( ! ber_bvccmp( &bdn->a_pat, '*' ) );
2565                 }
2566
2567                 ptr = lutil_strcopy( ptr, bdn->a_pat.bv_val );
2568                 if ( bdn->a_style == ACL_STYLE_SELF && bdn->a_self_level != 0 ) {
2569                         int n = sprintf( ptr, ".level{%d}", bdn->a_self_level );
2570                         if ( n > 0 ) {
2571                                 ptr += n;
2572                         } /* else ? */
2573                 }
2574
2575         } else {
2576                 ptr = lutil_strcopy( ptr, "dn." );
2577                 if ( bdn->a_style == ACL_STYLE_BASE )
2578                         ptr = lutil_strcopy( ptr, style_base );
2579                 else
2580                         ptr = lutil_strcopy( ptr, style_strings[bdn->a_style] );
2581                 if ( bdn->a_style == ACL_STYLE_LEVEL ) {
2582                         int n = sprintf( ptr, "{%d}", bdn->a_level );
2583                         if ( n > 0 ) {
2584                                 ptr += n;
2585                         } /* else ? */
2586                 }
2587                 if ( bdn->a_expand ) {
2588                         ptr = lutil_strcopy( ptr, ",expand" );
2589                 }
2590                 *ptr++ = '=';
2591                 *ptr++ = '"';
2592                 ptr = lutil_strcopy( ptr, bdn->a_pat.bv_val );
2593                 *ptr++ = '"';
2594         }
2595         return ptr;
2596 }
2597
2598 static char *
2599 access2text( Access *b, char *ptr )
2600 {
2601         char maskbuf[ACCESSMASK_MAXLEN];
2602
2603         ptr = lutil_strcopy( ptr, "\tby" );
2604
2605         if ( !BER_BVISEMPTY( &b->a_dn_pat ) ) {
2606                 ptr = dnaccess2text( &b->a_dn, ptr, 0 );
2607         }
2608         if ( b->a_dn_at ) {
2609                 ptr = lutil_strcopy( ptr, " dnattr=" );
2610                 ptr = lutil_strcopy( ptr, b->a_dn_at->ad_cname.bv_val );
2611         }
2612
2613         if ( !BER_BVISEMPTY( &b->a_realdn_pat ) ) {
2614                 ptr = dnaccess2text( &b->a_realdn, ptr, 1 );
2615         }
2616         if ( b->a_realdn_at ) {
2617                 ptr = lutil_strcopy( ptr, " realdnattr=" );
2618                 ptr = lutil_strcopy( ptr, b->a_realdn_at->ad_cname.bv_val );
2619         }
2620
2621         if ( !BER_BVISEMPTY( &b->a_group_pat ) ) {
2622                 ptr = lutil_strcopy( ptr, " group/" );
2623                 ptr = lutil_strcopy( ptr, b->a_group_oc ?
2624                         b->a_group_oc->soc_cname.bv_val : SLAPD_GROUP_CLASS );
2625                 *ptr++ = '/';
2626                 ptr = lutil_strcopy( ptr, b->a_group_at ?
2627                         b->a_group_at->ad_cname.bv_val : SLAPD_GROUP_ATTR );
2628                 *ptr++ = '.';
2629                 ptr = lutil_strcopy( ptr, style_strings[b->a_group_style] );
2630                 *ptr++ = '=';
2631                 *ptr++ = '"';
2632                 ptr = lutil_strcopy( ptr, b->a_group_pat.bv_val );
2633                 *ptr++ = '"';
2634         }
2635
2636         if ( !BER_BVISEMPTY( &b->a_peername_pat ) ) {
2637                 ptr = lutil_strcopy( ptr, " peername" );
2638                 *ptr++ = '.';
2639                 ptr = lutil_strcopy( ptr, style_strings[b->a_peername_style] );
2640                 *ptr++ = '=';
2641                 *ptr++ = '"';
2642                 ptr = lutil_strcopy( ptr, b->a_peername_pat.bv_val );
2643                 *ptr++ = '"';
2644         }
2645
2646         if ( !BER_BVISEMPTY( &b->a_sockname_pat ) ) {
2647                 ptr = lutil_strcopy( ptr, " sockname" );
2648                 *ptr++ = '.';
2649                 ptr = lutil_strcopy( ptr, style_strings[b->a_sockname_style] );
2650                 *ptr++ = '=';
2651                 *ptr++ = '"';
2652                 ptr = lutil_strcopy( ptr, b->a_sockname_pat.bv_val );
2653                 *ptr++ = '"';
2654         }
2655
2656         if ( !BER_BVISEMPTY( &b->a_domain_pat ) ) {
2657                 ptr = lutil_strcopy( ptr, " domain" );
2658                 *ptr++ = '.';
2659                 ptr = lutil_strcopy( ptr, style_strings[b->a_domain_style] );
2660                 if ( b->a_domain_expand ) {
2661                         ptr = lutil_strcopy( ptr, ",expand" );
2662                 }
2663                 *ptr++ = '=';
2664                 ptr = lutil_strcopy( ptr, b->a_domain_pat.bv_val );
2665         }
2666
2667         if ( !BER_BVISEMPTY( &b->a_sockurl_pat ) ) {
2668                 ptr = lutil_strcopy( ptr, " sockurl" );
2669                 *ptr++ = '.';
2670                 ptr = lutil_strcopy( ptr, style_strings[b->a_sockurl_style] );
2671                 *ptr++ = '=';
2672                 *ptr++ = '"';
2673                 ptr = lutil_strcopy( ptr, b->a_sockurl_pat.bv_val );
2674                 *ptr++ = '"';
2675         }
2676
2677         if ( !BER_BVISEMPTY( &b->a_set_pat ) ) {
2678                 ptr = lutil_strcopy( ptr, " set" );
2679                 *ptr++ = '.';
2680                 ptr = lutil_strcopy( ptr, style_strings[b->a_set_style] );
2681                 *ptr++ = '=';
2682                 *ptr++ = '"';
2683                 ptr = lutil_strcopy( ptr, b->a_set_pat.bv_val );
2684                 *ptr++ = '"';
2685         }
2686
2687 #ifdef SLAP_DYNACL
2688         if ( b->a_dynacl ) {
2689                 slap_dynacl_t   *da;
2690
2691                 for ( da = b->a_dynacl; da; da = da->da_next ) {
2692                         if ( da->da_unparse ) {
2693                                 struct berval bv = BER_BVNULL;
2694                                 (void)( *da->da_unparse )( da->da_private, &bv );
2695                                 assert( !BER_BVISNULL( &bv ) );
2696                                 ptr = lutil_strcopy( ptr, bv.bv_val );
2697                                 ch_free( bv.bv_val );
2698                         }
2699                 }
2700         }
2701 #endif /* SLAP_DYNACL */
2702
2703         /* Security Strength Factors */
2704         if ( b->a_authz.sai_ssf ) {
2705                 ptr += sprintf( ptr, " ssf=%u",
2706                         b->a_authz.sai_ssf );
2707         }
2708         if ( b->a_authz.sai_transport_ssf ) {
2709                 ptr += sprintf( ptr, " transport_ssf=%u",
2710                         b->a_authz.sai_transport_ssf );
2711         }
2712         if ( b->a_authz.sai_tls_ssf ) {
2713                 ptr += sprintf( ptr, " tls_ssf=%u",
2714                         b->a_authz.sai_tls_ssf );
2715         }
2716         if ( b->a_authz.sai_sasl_ssf ) {
2717                 ptr += sprintf( ptr, " sasl_ssf=%u",
2718                         b->a_authz.sai_sasl_ssf );
2719         }
2720
2721         *ptr++ = ' ';
2722         if ( b->a_dn_self ) {
2723                 ptr = lutil_strcopy( ptr, "self" );
2724         } else if ( b->a_realdn_self ) {
2725                 ptr = lutil_strcopy( ptr, "realself" );
2726         }
2727         ptr = lutil_strcopy( ptr, accessmask2str( b->a_access_mask, maskbuf, 0 ));
2728         if ( !maskbuf[0] ) ptr--;
2729
2730         if( b->a_type == ACL_BREAK ) {
2731                 ptr = lutil_strcopy( ptr, " break" );
2732
2733         } else if( b->a_type == ACL_CONTINUE ) {
2734                 ptr = lutil_strcopy( ptr, " continue" );
2735
2736         } else if( b->a_type != ACL_STOP ) {
2737                 ptr = lutil_strcopy( ptr, " unknown-control" );
2738         } else {
2739                 if ( !maskbuf[0] ) ptr = lutil_strcopy( ptr, " stop" );
2740         }
2741         *ptr++ = '\n';
2742
2743         return ptr;
2744 }
2745
2746 void
2747 acl_unparse( AccessControl *a, struct berval *bv )
2748 {
2749         Access  *b;
2750         char    *ptr;
2751         int     to = 0;
2752
2753         bv->bv_val = aclbuf;
2754         bv->bv_len = 0;
2755
2756         ptr = bv->bv_val;
2757
2758         ptr = lutil_strcopy( ptr, "to" );
2759         if ( !BER_BVISNULL( &a->acl_dn_pat ) ) {
2760                 to++;
2761                 ptr = lutil_strcopy( ptr, " dn." );
2762                 if ( a->acl_dn_style == ACL_STYLE_BASE )
2763                         ptr = lutil_strcopy( ptr, style_base );
2764                 else
2765                         ptr = lutil_strcopy( ptr, style_strings[a->acl_dn_style] );
2766                 *ptr++ = '=';
2767                 *ptr++ = '"';
2768                 ptr = lutil_strcopy( ptr, a->acl_dn_pat.bv_val );
2769                 ptr = lutil_strcopy( ptr, "\"\n" );
2770         }
2771
2772         if ( a->acl_filter != NULL ) {
2773                 struct berval   bv = BER_BVNULL;
2774
2775                 to++;
2776                 filter2bv( a->acl_filter, &bv );
2777                 ptr = lutil_strcopy( ptr, " filter=\"" );
2778                 ptr = lutil_strcopy( ptr, bv.bv_val );
2779                 *ptr++ = '"';
2780                 *ptr++ = '\n';
2781                 ch_free( bv.bv_val );
2782         }
2783
2784         if ( a->acl_attrs != NULL ) {
2785                 int     first = 1;
2786                 AttributeName *an;
2787                 to++;
2788
2789                 ptr = lutil_strcopy( ptr, " attrs=" );
2790                 for ( an = a->acl_attrs; an && !BER_BVISNULL( &an->an_name ); an++ ) {
2791                         if ( ! first ) *ptr++ = ',';
2792                         if (an->an_oc) {
2793                                 *ptr++ = an->an_oc_exclude ? '!' : '@';
2794                                 ptr = lutil_strcopy( ptr, an->an_oc->soc_cname.bv_val );
2795
2796                         } else {
2797                                 ptr = lutil_strcopy( ptr, an->an_name.bv_val );
2798                         }
2799                         first = 0;
2800                 }
2801                 *ptr++ = '\n';
2802         }
2803
2804         if ( !BER_BVISEMPTY( &a->acl_attrval ) ) {
2805                 to++;
2806                 ptr = lutil_strcopy( ptr, " val." );
2807                 if ( a->acl_attrval_style == ACL_STYLE_BASE &&
2808                         a->acl_attrs[0].an_desc->ad_type->sat_syntax ==
2809                                 slap_schema.si_syn_distinguishedName )
2810                         ptr = lutil_strcopy( ptr, style_base );
2811                 else
2812                         ptr = lutil_strcopy( ptr, style_strings[a->acl_attrval_style] );
2813                 *ptr++ = '=';
2814                 *ptr++ = '"';
2815                 ptr = lutil_strcopy( ptr, a->acl_attrval.bv_val );
2816                 *ptr++ = '"';
2817                 *ptr++ = '\n';
2818         }
2819
2820         if( !to ) {
2821                 ptr = lutil_strcopy( ptr, " *\n" );
2822         }
2823
2824         for ( b = a->acl_access; b != NULL; b = b->a_next ) {
2825                 ptr = access2text( b, ptr );
2826         }
2827         *ptr = '\0';
2828         bv->bv_len = ptr - bv->bv_val;
2829 }
2830
2831 #ifdef LDAP_DEBUG
2832 static void
2833 print_acl( Backend *be, AccessControl *a )
2834 {
2835         struct berval bv;
2836
2837         acl_unparse( a, &bv );
2838         fprintf( stderr, "%s ACL: access %s\n",
2839                 be == NULL ? "Global" : "Backend", bv.bv_val );
2840 }
2841 #endif /* LDAP_DEBUG */