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 1998-2005 The OpenLDAP Foundation.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in the file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16 /* Portions Copyright (c) 1995 Regents of the University of Michigan.
  17  * All rights reserved.
  18  *
  19  * Redistribution and use in source and binary forms are permitted
  20  * provided that this notice is preserved and that due credit is given
  21  * to the University of Michigan at Ann Arbor. The name of the University
  22  * may not be used to endorse or promote products derived from this
  23  * software without specific prior written permission. This software
  24  * is provided ``as is'' without express or implied warranty.
  25  */
  26
  27 #include "portable.h"
  28
  29 #include <stdio.h>
  30
  31 #include <ac/ctype.h>
  32 #include <ac/regex.h>
  33 #include <ac/socket.h>
  34 #include <ac/string.h>
  35 #include <ac/unistd.h>
  36
  37 #include "slap.h"
  38 #include "lber_pvt.h"
  39 #include "lutil.h"
  40
  41 static const char style_base[] = "base";
  42 char *style_strings[] = {
  43         "regex",
  44         "expand",
  45         "exact",
  46         "one",
  47         "subtree",
  48         "children",
  49         "level",
  50         "attrof",
  51         "anonymous",
  52         "users",
  53         "self",
  54         "ip",
  55         "path",
  56         NULL
  57 };
  58
  59 static void             split(char *line, int splitchar, char **left, char **right);
  60 static void             access_append(Access **l, Access *a);
  61 static void             acl_usage(void) LDAP_GCCATTR((noreturn));
  62
  63 static void             acl_regex_normalized_dn(const char *src, struct berval *pat);
  64
  65 #ifdef LDAP_DEBUG
  66 static void             print_acl(Backend *be, AccessControl *a);
  67 #endif
  68
  69 static int              check_scope( BackendDB *be, AccessControl *a );
  70
  71 #ifdef SLAP_DYNACL
  72 static int
  73 slap_dynacl_config(
  74         const char *fname,
  75         int lineno,
  76         Access *b,
  77         const char *name,
  78         const char *opts,
  79         slap_style_t sty,
  80         const char *right )
  81 {
  82         slap_dynacl_t   *da, *tmp;
  83         int             rc = 0;
  84
  85         for ( da = b->a_dynacl; da; da = da->da_next ) {
  86                 if ( strcasecmp( da->da_name, name ) == 0 ) {
  87                         Debug( LDAP_DEBUG_ANY,
  88                                 "%s: line %d: dynacl \"%s\" already specified.\n",
  89                                 fname, lineno, name );
  90                         acl_usage();
  91                 }
  92         }
  93
  94         da = slap_dynacl_get( name );
  95         if ( da == NULL ) {
  96                 return -1;
  97         }
  98
  99         tmp = ch_malloc( sizeof( slap_dynacl_t ) );
 100         *tmp = *da;
 101
 102         if ( tmp->da_parse ) {
 103                 rc = ( *tmp->da_parse )( fname, lineno, opts, sty, right, &tmp->da_private );
 104                 if ( rc ) {
 105                         ch_free( tmp );
 106                         return rc;
 107                 }
 108         }
 109
 110         tmp->da_next = b->a_dynacl;
 111         b->a_dynacl = tmp;
 112
 113         return 0;
 114 }
 115 #endif /* SLAP_DYNACL */
 116
 117 static void
 118 regtest(const char *fname, int lineno, char *pat) {
 119         int e;
 120         regex_t re;
 121
 122         char            buf[ SLAP_TEXT_BUFLEN ];
 123         unsigned        size;
 124
 125         char *sp;
 126         char *dp;
 127         int  flag;
 128
 129         sp = pat;
 130         dp = buf;
 131         size = 0;
 132         buf[0] = '\0';
 133
 134         for (size = 0, flag = 0; (size < sizeof(buf)) && *sp; sp++) {
 135                 if (flag) {
 136                         if (*sp == '$'|| (*sp >= '0' && *sp <= '9')) {
 137                                 *dp++ = *sp;
 138                                 size++;
 139                         }
 140                         flag = 0;
 141
 142                 } else {
 143                         if (*sp == '$') {
 144                                 flag = 1;
 145                         } else {
 146                                 *dp++ = *sp;
 147                                 size++;
 148                         }
 149                 }
 150         }
 151
 152         *dp = '\0';
 153         if ( size >= (sizeof(buf) - 1) ) {
 154                 Debug( LDAP_DEBUG_ANY,
 155                         "%s: line %d: regular expression \"%s\" too large\n",
 156                         fname, lineno, pat );
 157                 acl_usage();
 158         }
 159
 160         if ((e = regcomp(&re, buf, REG_EXTENDED|REG_ICASE))) {
 161                 char error[ SLAP_TEXT_BUFLEN ];
 162
 163                 regerror(e, &re, error, sizeof(error));
 164
 165                 snprintf( buf, sizeof( buf ),
 166                         "regular expression \"%s\" bad because of %s",
 167                         pat, error );
 168                 Debug( LDAP_DEBUG_ANY,
 169                         "%s: line %d: %s\n",
 170                         fname, lineno, buf );
 171                 acl_usage();
 172         }
 173         regfree(&re);
 174 }
 175
 176 /*
 177  * Experimental
 178  *
 179  * Check if the pattern of an ACL, if any, matches the scope
 180  * of the backend it is defined within.
 181  */
 182 #define ACL_SCOPE_UNKNOWN       (-2)
 183 #define ACL_SCOPE_ERR           (-1)
 184 #define ACL_SCOPE_OK            (0)
 185 #define ACL_SCOPE_PARTIAL       (1)
 186 #define ACL_SCOPE_WARN          (2)
 187
 188 static int
 189 check_scope( BackendDB *be, AccessControl *a )
 190 {
 191         ber_len_t       patlen;
 192         struct berval   dn;
 193
 194         dn = be->be_nsuffix[0];
 195
 196         if ( BER_BVISEMPTY( &dn ) ) {
 197                 return ACL_SCOPE_OK;
 198         }
 199
 200         if ( !BER_BVISEMPTY( &a->acl_dn_pat ) ||
 201                         a->acl_dn_style != ACL_STYLE_REGEX )
 202         {
 203                 slap_style_t    style = a->acl_dn_style;
 204
 205                 if ( style == ACL_STYLE_REGEX ) {
 206                         char            dnbuf[SLAP_LDAPDN_MAXLEN + 2];
 207                         char            rebuf[SLAP_LDAPDN_MAXLEN + 1];
 208                         ber_len_t       rebuflen;
 209                         regex_t         re;
 210                         int             rc;
 211
 212                         /* add trailing '$' to database suffix to form
 213                          * a simple trial regex pattern "<suffix>$" */
 214                         AC_MEMCPY( dnbuf, be->be_nsuffix[0].bv_val,
 215                                 be->be_nsuffix[0].bv_len );
 216                         dnbuf[be->be_nsuffix[0].bv_len] = '$';
 217                         dnbuf[be->be_nsuffix[0].bv_len + 1] = '\0';
 218
 219                         if ( regcomp( &re, dnbuf, REG_EXTENDED|REG_ICASE ) ) {
 220                                 return ACL_SCOPE_WARN;
 221                         }
 222
 223                         /* remove trailing ')$', if any, from original
 224                          * regex pattern */
 225                         rebuflen = a->acl_dn_pat.bv_len;
 226                         AC_MEMCPY( rebuf, a->acl_dn_pat.bv_val, rebuflen + 1 );
 227                         if ( rebuf[rebuflen - 1] == '$' ) {
 228                                 rebuf[--rebuflen] = '\0';
 229                         }
 230                         while ( rebuflen > be->be_nsuffix[0].bv_len && rebuf[rebuflen - 1] == ')' ) {
 231                                 rebuf[--rebuflen] = '\0';
 232                         }
 233                         if ( rebuflen == be->be_nsuffix[0].bv_len ) {
 234                                 rc = ACL_SCOPE_WARN;
 235                                 goto regex_done;
 236                         }
 237
 238                         /* not a clear indication of scoping error, though */
 239                         rc = regexec( &re, rebuf, 0, NULL, 0 )
 240                                 ? ACL_SCOPE_WARN : ACL_SCOPE_OK;
 241
 242 regex_done:;
 243                         regfree( &re );
 244                         return rc;
 245                 }
 246
 247                 patlen = a->acl_dn_pat.bv_len;
 248                 /* If backend suffix is longer than pattern,
 249                  * it is a potential mismatch (in the sense
 250                  * that a superior naming context could
 251                  * match */
 252                 if ( dn.bv_len > patlen ) {
 253                         /* base is blatantly wrong */
 254                         if ( style == ACL_STYLE_BASE ) return ACL_SCOPE_ERR;
 255
 256                         /* a style of one can be wrong if there is
 257                          * more than one level between the suffix
 258                          * and the pattern */
 259                         if ( style == ACL_STYLE_ONE ) {
 260                                 ber_len_t       rdnlen = 0;
 261                                 int             sep = 0;
 262
 263                                 if ( patlen > 0 ) {
 264                                         if ( !DN_SEPARATOR( dn.bv_val[dn.bv_len - patlen - 1] )) {
 265                                                 return ACL_SCOPE_ERR;
 266                                         }
 267                                         sep = 1;
 268                                 }
 269
 270                                 rdnlen = dn_rdnlen( NULL, &dn );
 271                                 if ( rdnlen != dn.bv_len - patlen - sep )
 272                                         return ACL_SCOPE_ERR;
 273                         }
 274
 275                         /* if the trailing part doesn't match,
 276                          * then it's an error */
 277                         if ( strcmp( a->acl_dn_pat.bv_val,
 278                                 &dn.bv_val[dn.bv_len - patlen] ) != 0 )
 279                         {
 280                                 return ACL_SCOPE_ERR;
 281                         }
 282
 283                         return ACL_SCOPE_PARTIAL;
 284                 }
 285
 286                 switch ( style ) {
 287                 case ACL_STYLE_BASE:
 288                 case ACL_STYLE_ONE:
 289                 case ACL_STYLE_CHILDREN:
 290                 case ACL_STYLE_SUBTREE:
 291                         break;
 292
 293                 default:
 294                         assert( 0 );
 295                         break;
 296                 }
 297
 298                 if ( dn.bv_len < patlen &&
 299                         !DN_SEPARATOR( a->acl_dn_pat.bv_val[patlen - dn.bv_len - 1] ))
 300                 {
 301                         return ACL_SCOPE_ERR;
 302                 }
 303
 304                 if ( strcmp( &a->acl_dn_pat.bv_val[patlen - dn.bv_len], dn.bv_val )
 305                         != 0 )
 306                 {
 307                         return ACL_SCOPE_ERR;
 308                 }
 309
 310                 return ACL_SCOPE_OK;
 311         }
 312
 313         return ACL_SCOPE_UNKNOWN;
 314 }
 315
 316 void
 317 parse_acl(
 318     Backend     *be,
 319     const char  *fname,
 320     int         lineno,
 321     int         argc,
 322     char        **argv,
 323         int             pos )
 324 {
 325         int             i;
 326         char            *left, *right, *style, *next;
 327         struct berval   bv;
 328         AccessControl   *a;
 329         Access  *b;
 330         int rc;
 331         const char *text;
 332
 333         a = NULL;
 334         for ( i = 1; i < argc; i++ ) {
 335                 /* to clause - select which entries are protected */
 336                 if ( strcasecmp( argv[i], "to" ) == 0 ) {
 337                         if ( a != NULL ) {
 338                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 339                                         "only one to clause allowed in access line\n",
 340                                     fname, lineno, 0 );
 341                                 acl_usage();
 342                         }
 343                         a = (AccessControl *) ch_calloc( 1, sizeof(AccessControl) );
 344                         for ( ++i; i < argc; i++ ) {
 345                                 if ( strcasecmp( argv[i], "by" ) == 0 ) {
 346                                         i--;
 347                                         break;
 348                                 }
 349
 350                                 if ( strcasecmp( argv[i], "*" ) == 0 ) {
 351                                         if ( !BER_BVISEMPTY( &a->acl_dn_pat ) ||
 352                                                 a->acl_dn_style != ACL_STYLE_REGEX )
 353                                         {
 354                                                 Debug( LDAP_DEBUG_ANY,
 355                                                         "%s: line %d: dn pattern"
 356                                                         " already specified in to clause.\n",
 357                                                         fname, lineno, 0 );
 358                                                 acl_usage();
 359                                         }
 360
 361                                         ber_str2bv( "*", STRLENOF( "*" ), 1, &a->acl_dn_pat );
 362                                         continue;
 363                                 }
 364
 365                                 split( argv[i], '=', &left, &right );
 366                                 split( left, '.', &left, &style );
 367
 368                                 if ( right == NULL ) {
 369                                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 370                                                 "missing \"=\" in \"%s\" in to clause\n",
 371                                             fname, lineno, left );
 372                                         acl_usage();
 373                                 }
 374
 375                                 if ( strcasecmp( left, "dn" ) == 0 ) {
 376                                         if ( !BER_BVISEMPTY( &a->acl_dn_pat ) ||
 377                                                 a->acl_dn_style != ACL_STYLE_REGEX )
 378                                         {
 379                                                 Debug( LDAP_DEBUG_ANY,
 380                                                         "%s: line %d: dn pattern"
 381                                                         " already specified in to clause.\n",
 382                                                         fname, lineno, 0 );
 383                                                 acl_usage();
 384                                         }
 385
 386                                         if ( style == NULL || *style == '\0' ||
 387                                                 strcasecmp( style, "baseObject" ) == 0 ||
 388                                                 strcasecmp( style, "base" ) == 0 ||
 389                                                 strcasecmp( style, "exact" ) == 0 )
 390                                         {
 391                                                 a->acl_dn_style = ACL_STYLE_BASE;
 392                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 393
 394                                         } else if ( strcasecmp( style, "oneLevel" ) == 0 ||
 395                                                 strcasecmp( style, "one" ) == 0 )
 396                                         {
 397                                                 a->acl_dn_style = ACL_STYLE_ONE;
 398                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 399
 400                                         } else if ( strcasecmp( style, "subtree" ) == 0 ||
 401                                                 strcasecmp( style, "sub" ) == 0 )
 402                                         {
 403                                                 if( *right == '\0' ) {
 404                                                         ber_str2bv( "*", STRLENOF( "*" ), 1, &a->acl_dn_pat );
 405
 406                                                 } else {
 407                                                         a->acl_dn_style = ACL_STYLE_SUBTREE;
 408                                                         ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 409                                                 }
 410
 411                                         } else if ( strcasecmp( style, "children" ) == 0 ) {
 412                                                 a->acl_dn_style = ACL_STYLE_CHILDREN;
 413                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 414
 415                                         } else if ( strcasecmp( style, "regex" ) == 0 ) {
 416                                                 a->acl_dn_style = ACL_STYLE_REGEX;
 417
 418                                                 if ( *right == '\0' ) {
 419                                                         /* empty regex should match empty DN */
 420                                                         a->acl_dn_style = ACL_STYLE_BASE;
 421                                                         ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 422
 423                                                 } else if ( strcmp(right, "*") == 0
 424                                                         || strcmp(right, ".*") == 0
 425                                                         || strcmp(right, ".*$") == 0
 426                                                         || strcmp(right, "^.*") == 0
 427                                                         || strcmp(right, "^.*$") == 0
 428                                                         || strcmp(right, ".*$$") == 0
 429                                                         || strcmp(right, "^.*$$") == 0 )
 430                                                 {
 431                                                         ber_str2bv( "*", STRLENOF("*"), 1, &a->acl_dn_pat );
 432
 433                                                 } else {
 434                                                         acl_regex_normalized_dn( right, &a->acl_dn_pat );
 435                                                 }
 436
 437                                         } else {
 438                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 439                                                         "unknown dn style \"%s\" in to clause\n",
 440                                                     fname, lineno, style );
 441                                                 acl_usage();
 442                                         }
 443
 444                                         continue;
 445                                 }
 446
 447                                 if ( strcasecmp( left, "filter" ) == 0 ) {
 448                                         if ( (a->acl_filter = str2filter( right )) == NULL ) {
 449                                                 Debug( LDAP_DEBUG_ANY,
 450                                 "%s: line %d: bad filter \"%s\" in to clause\n",
 451                                                     fname, lineno, right );
 452                                                 acl_usage();
 453                                         }
 454
 455                                 } else if ( strcasecmp( left, "attr" ) == 0             /* TOLERATED */
 456                                                 || strcasecmp( left, "attrs" ) == 0 )   /* DOCUMENTED */
 457                                 {
 458                                         a->acl_attrs = str2anlist( a->acl_attrs,
 459                                                 right, "," );
 460                                         if ( a->acl_attrs == NULL ) {
 461                                                 Debug( LDAP_DEBUG_ANY,
 462                                 "%s: line %d: unknown attr \"%s\" in to clause\n",
 463                                                     fname, lineno, right );
 464                                                 acl_usage();
 465                                         }
 466
 467                                 } else if ( strncasecmp( left, "val", 3 ) == 0 ) {
 468                                         char    *mr;
 469
 470                                         if ( !BER_BVISEMPTY( &a->acl_attrval ) ) {
 471                                                 Debug( LDAP_DEBUG_ANY,
 472                                 "%s: line %d: attr val already specified in to clause.\n",
 473                                                         fname, lineno, 0 );
 474                                                 acl_usage();
 475                                         }
 476                                         if ( a->acl_attrs == NULL || !BER_BVISEMPTY( &a->acl_attrs[1].an_name ) )
 477                                         {
 478                                                 Debug( LDAP_DEBUG_ANY,
 479                                 "%s: line %d: attr val requires a single attribute.\n",
 480                                                         fname, lineno, 0 );
 481                                                 acl_usage();
 482                                         }
 483
 484                                         ber_str2bv( right, 0, 1, &a->acl_attrval );
 485                                         a->acl_attrval_style = ACL_STYLE_BASE;
 486
 487                                         mr = strchr( left, '/' );
 488                                         if ( mr != NULL ) {
 489                                                 mr[ 0 ] = '\0';
 490                                                 mr++;
 491
 492                                                 a->acl_attrval_mr = mr_find( mr );
 493                                                 if ( a->acl_attrval_mr == NULL ) {
 494                                                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 495                                                                 "invalid matching rule \"%s\".\n",
 496                                                                 fname, lineno, mr );
 497                                                         acl_usage();
 498                                                 }
 499
 500                                                 if( !mr_usable_with_at( a->acl_attrval_mr, a->acl_attrs[ 0 ].an_desc->ad_type ) )
 501                                                 {
 502                                                         char    buf[ SLAP_TEXT_BUFLEN ];
 503
 504                                                         snprintf( buf, sizeof( buf ),
 505                                                                 "matching rule \"%s\" use "
 506                                                                 "with attr \"%s\" not appropriate.",
 507                                                                 mr, a->acl_attrs[ 0 ].an_name.bv_val );
 508
 509
 510                                                         Debug( LDAP_DEBUG_ANY, "%s: line %d: %s\n",
 511                                                                 fname, lineno, buf );
 512                                                         acl_usage();
 513                                                 }
 514                                         }
 515
 516                                         if ( style != NULL ) {
 517                                                 if ( strcasecmp( style, "regex" ) == 0 ) {
 518                                                         int e = regcomp( &a->acl_attrval_re, a->acl_attrval.bv_val,
 519                                                                 REG_EXTENDED | REG_ICASE | REG_NOSUB );
 520                                                         if ( e ) {
 521                                                                 char    err[SLAP_TEXT_BUFLEN],
 522                                                                         buf[ SLAP_TEXT_BUFLEN ];
 523
 524                                                                 regerror( e, &a->acl_attrval_re, err, sizeof( err ) );
 525
 526                                                                 snprintf( buf, sizeof( buf ),
 527                                                                         "regular expression \"%s\" bad because of %s",
 528                                                                         right, err );
 529
 530                                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: %s\n",
 531                                                                         fname, lineno, buf );
 532                                                                 acl_usage();
 533                                                         }
 534                                                         a->acl_attrval_style = ACL_STYLE_REGEX;
 535
 536                                                 } else {
 537                                                         /* FIXME: if the attribute has DN syntax, we might
 538                                                          * allow one, subtree and children styles as well */
 539                                                         if ( !strcasecmp( style, "base" ) ||
 540                                                                 !strcasecmp( style, "exact" ) ) {
 541                                                                 a->acl_attrval_style = ACL_STYLE_BASE;
 542
 543                                                         } else if ( a->acl_attrs[0].an_desc->ad_type->
 544                                                                 sat_syntax == slap_schema.si_syn_distinguishedName )
 545                                                         {
 546                                                                 struct berval   bv;
 547
 548                                                                 if ( !strcasecmp( style, "baseObject" ) ||
 549                                                                         !strcasecmp( style, "base" ) )
 550                                                                 {
 551                                                                         a->acl_attrval_style = ACL_STYLE_BASE;
 552                                                                 } else if ( !strcasecmp( style, "onelevel" ) ||
 553                                                                         !strcasecmp( style, "one" ) )
 554                                                                 {
 555                                                                         a->acl_attrval_style = ACL_STYLE_ONE;
 556                                                                 } else if ( !strcasecmp( style, "subtree" ) ||
 557                                                                         !strcasecmp( style, "sub" ) )
 558                                                                 {
 559                                                                         a->acl_attrval_style = ACL_STYLE_SUBTREE;
 560                                                                 } else if ( !strcasecmp( style, "children" ) ) {
 561                                                                         a->acl_attrval_style = ACL_STYLE_CHILDREN;
 562                                                                 } else {
 563                                                                         char    buf[ SLAP_TEXT_BUFLEN ];
 564
 565                                                                         /* FIXME: should be an error */
 566
 567                                                                         snprintf( buf, sizeof( buf ),
 568                                                                                 "unknown val.<style> \"%s\" "
 569                                                                                 "for attributeType \"%s\" with DN syntax; "
 570                                                                                 "using \"base\""
 571                                                                                 SLAPD_CONF_UNKNOWN_IGNORED ".",
 572                                                                                 style,
 573                                                                                 a->acl_attrs[0].an_desc->ad_cname.bv_val );
 574
 575                                                                         Debug( LDAP_DEBUG_CONFIG | LDAP_DEBUG_ACL,
 576                                                                                 "%s: line %d: %s\n",
 577                                                                                 fname, lineno, buf );
 578 #ifdef SLAPD_CONF_UNKNOWN_BAILOUT
 579                                                                         acl_usage();
 580 #endif /* SLAPD_CONF_UNKNOWN_BAILOUT */
 581                                                                         a->acl_attrval_style = ACL_STYLE_BASE;
 582                                                                 }
 583
 584                                                                 bv = a->acl_attrval;
 585                                                                 rc = dnNormalize( 0, NULL, NULL, &bv, &a->acl_attrval, NULL );
 586                                                                 if ( rc != LDAP_SUCCESS ) {
 587                                                                         char    buf[ SLAP_TEXT_BUFLEN ];
 588
 589                                                                         snprintf( buf, sizeof( buf ),
 590                                                                                 "unable to normalize DN \"%s\" "
 591                                                                                 "for attributeType \"%s\" (%d).",
 592                                                                                 bv.bv_val,
 593                                                                                 a->acl_attrs[0].an_desc->ad_cname.bv_val,
 594                                                                                 rc );
 595                                                                         Debug( LDAP_DEBUG_ANY,
 596                                                                                 "%s: line %d: %s\n",
 597                                                                                 fname, lineno, buf );
 598                                                                         acl_usage();
 599                                                                 }
 600                                                                 ber_memfree( bv.bv_val );
 601
 602                                                         } else {
 603                                                                 char    buf[ SLAP_TEXT_BUFLEN ];
 604
 605                                                                 /* FIXME: should be an error */
 606
 607                                                                 snprintf( buf, sizeof( buf ),
 608                                                                         "unknown val.<style> \"%s\" "
 609                                                                         "for attributeType \"%s\"; using \"exact\""
 610                                                                         SLAPD_CONF_UNKNOWN_IGNORED ".",
 611                                                                         style, a->acl_attrs[0].an_desc->ad_cname.bv_val );
 612                                                                 Debug( LDAP_DEBUG_CONFIG | LDAP_DEBUG_ACL,
 613                                                                         "%s: line %d: %s\n",
 614                                                                         fname, lineno, buf );
 615 #ifdef SLAPD_CONF_UNKNOWN_BAILOUT
 616                                                                 acl_usage();
 617 #endif /* SLAPD_CONF_UNKNOWN_BAILOUT */
 618                                                                 a->acl_attrval_style = ACL_STYLE_BASE;
 619                                                         }
 620                                                 }
 621                                         }
 622
 623                                         /* Check for appropriate matching rule */
 624                                         if ( a->acl_attrval_style != ACL_STYLE_REGEX ) {
 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\" must have an EQUALITY matching rule.\n",
 632                                                                 fname, lineno, a->acl_attrs[ 0 ].an_name.bv_val );
 633                                                         acl_usage();
 634                                                 }
 635                                         }
 636
 637                                 } else {
 638                                         Debug( LDAP_DEBUG_ANY,
 639                                                 "%s: line %d: expecting <what> got \"%s\"\n",
 640                                             fname, lineno, left );
 641                                         acl_usage();
 642                                 }
 643                         }
 644
 645                         if ( !BER_BVISNULL( &a->acl_dn_pat ) &&
 646                                         ber_bvccmp( &a->acl_dn_pat, '*' ) )
 647                         {
 648                                 free( a->acl_dn_pat.bv_val );
 649                                 BER_BVZERO( &a->acl_dn_pat );
 650                                 a->acl_dn_style = ACL_STYLE_REGEX;
 651                         }
 652
 653                         if ( !BER_BVISEMPTY( &a->acl_dn_pat ) ||
 654                                         a->acl_dn_style != ACL_STYLE_REGEX )
 655                         {
 656                                 if ( a->acl_dn_style != ACL_STYLE_REGEX ) {
 657                                         struct berval bv;
 658                                         rc = dnNormalize( 0, NULL, NULL, &a->acl_dn_pat, &bv, NULL);
 659                                         if ( rc != LDAP_SUCCESS ) {
 660                                                 Debug( LDAP_DEBUG_ANY,
 661                                                         "%s: line %d: bad DN \"%s\" in to DN clause\n",
 662                                                         fname, lineno, a->acl_dn_pat.bv_val );
 663                                                 acl_usage();
 664                                         }
 665                                         free( a->acl_dn_pat.bv_val );
 666                                         a->acl_dn_pat = bv;
 667
 668                                 } else {
 669                                         int e = regcomp( &a->acl_dn_re, a->acl_dn_pat.bv_val,
 670                                                 REG_EXTENDED | REG_ICASE );
 671                                         if ( e ) {
 672                                                 char    err[ SLAP_TEXT_BUFLEN ],
 673                                                         buf[ SLAP_TEXT_BUFLEN ];
 674
 675                                                 regerror( e, &a->acl_dn_re, err, sizeof( err ) );
 676                                                 snprintf( buf, sizeof( buf ),
 677                                                         "regular expression \"%s\" bad because of %s",
 678                                                         right, err );
 679                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: %s\n",
 680                                                         fname, lineno, buf );
 681                                                 acl_usage();
 682                                         }
 683                                 }
 684                         }
 685
 686                 /* by clause - select who has what access to entries */
 687                 } else if ( strcasecmp( argv[i], "by" ) == 0 ) {
 688                         if ( a == NULL ) {
 689                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 690                                         "to clause required before by clause in access line\n",
 691                                         fname, lineno, 0 );
 692                                 acl_usage();
 693                         }
 694
 695                         /*
 696                          * by clause consists of <who> and <access>
 697                          */
 698
 699                         b = (Access *) ch_calloc( 1, sizeof(Access) );
 700
 701                         ACL_INVALIDATE( b->a_access_mask );
 702
 703                         if ( ++i == argc ) {
 704                                 Debug( LDAP_DEBUG_ANY,
 705                                         "%s: line %d: premature EOL: expecting <who>\n",
 706                                         fname, lineno, 0 );
 707                                 acl_usage();
 708                         }
 709
 710                         /* get <who> */
 711                         for ( ; i < argc; i++ ) {
 712                                 slap_style_t    sty = ACL_STYLE_REGEX;
 713                                 char            *style_modifier = NULL;
 714                                 char            *style_level = NULL;
 715                                 int             level = 0;
 716                                 int             expand = 0;
 717                                 slap_dn_access  *bdn = &b->a_dn;
 718                                 int             is_realdn = 0;
 719
 720                                 split( argv[i], '=', &left, &right );
 721                                 split( left, '.', &left, &style );
 722                                 if ( style ) {
 723                                         split( style, ',', &style, &style_modifier );
 724
 725                                         if ( strncasecmp( style, "level", STRLENOF( "level" ) ) == 0 ) {
 726                                                 split( style, '{', &style, &style_level );
 727                                                 if ( style_level != NULL ) {
 728                                                         char *p = strchr( style_level, '}' );
 729                                                         if ( p == NULL ) {
 730                                                                 Debug( LDAP_DEBUG_ANY,
 731                                                                         "%s: line %d: premature eol: "
 732                                                                         "expecting closing '}' in \"level{n}\"\n",
 733                                                                         fname, lineno, 0 );
 734                                                                 acl_usage();
 735                                                         } else if ( p == style_level ) {
 736                                                                 Debug( LDAP_DEBUG_ANY,
 737                                                                         "%s: line %d: empty level "
 738                                                                         "in \"level{n}\"\n",
 739                                                                         fname, lineno, 0 );
 740                                                                 acl_usage();
 741                                                         }
 742                                                         p[0] = '\0';
 743                                                 }
 744                                         }
 745                                 }
 746
 747                                 if ( style == NULL || *style == '\0' ||
 748                                         strcasecmp( style, "exact" ) == 0 ||
 749                                         strcasecmp( style, "baseObject" ) == 0 ||
 750                                         strcasecmp( style, "base" ) == 0 )
 751                                 {
 752                                         sty = ACL_STYLE_BASE;
 753
 754                                 } else if ( strcasecmp( style, "onelevel" ) == 0 ||
 755                                         strcasecmp( style, "one" ) == 0 )
 756                                 {
 757                                         sty = ACL_STYLE_ONE;
 758
 759                                 } else if ( strcasecmp( style, "subtree" ) == 0 ||
 760                                         strcasecmp( style, "sub" ) == 0 )
 761                                 {
 762                                         sty = ACL_STYLE_SUBTREE;
 763
 764                                 } else if ( strcasecmp( style, "children" ) == 0 ) {
 765                                         sty = ACL_STYLE_CHILDREN;
 766
 767                                 } else if ( strcasecmp( style, "level" ) == 0 )
 768                                 {
 769                                         char    *next;
 770
 771                                         level = strtol( style_level, &next, 10 );
 772                                         if ( next[0] != '\0' ) {
 773                                                 Debug( LDAP_DEBUG_ANY,
 774                                                         "%s: line %d: unable to parse level "
 775                                                         "in \"level{n}\"\n",
 776                                                         fname, lineno, 0 );
 777                                                 acl_usage();
 778                                         }
 779
 780                                         sty = ACL_STYLE_LEVEL;
 781
 782                                 } else if ( strcasecmp( style, "regex" ) == 0 ) {
 783                                         sty = ACL_STYLE_REGEX;
 784
 785                                 } else if ( strcasecmp( style, "expand" ) == 0 ) {
 786                                         sty = ACL_STYLE_EXPAND;
 787
 788                                 } else if ( strcasecmp( style, "ip" ) == 0 ) {
 789                                         sty = ACL_STYLE_IP;
 790
 791                                 } else if ( strcasecmp( style, "path" ) == 0 ) {
 792                                         sty = ACL_STYLE_PATH;
 793 #ifndef LDAP_PF_LOCAL
 794                                         Debug( LDAP_DEBUG_CONFIG | LDAP_DEBUG_ACL,
 795                                                 "%s: line %d: "
 796                                                 "\"path\" style modifier is useless without local"
 797                                                 SLAPD_CONF_UNKNOWN_IGNORED ".\n",
 798                                                 fname, lineno, 0 );
 799 #ifdef SLAPD_CONF_UNKNOWN_BAILOUT
 800                                         acl_usage();
 801 #endif /* SLAPD_CONF_UNKNOWN_BAILOUT */
 802 #endif /* LDAP_PF_LOCAL */
 803
 804                                 } else {
 805                                         Debug( LDAP_DEBUG_ANY,
 806                                                 "%s: line %d: unknown style \"%s\" in by clause\n",
 807                                                 fname, lineno, style );
 808                                         acl_usage();
 809                                 }
 810
 811                                 if ( style_modifier &&
 812                                         strcasecmp( style_modifier, "expand" ) == 0 )
 813                                 {
 814                                         switch ( sty ) {
 815                                         case ACL_STYLE_REGEX:
 816                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 817                                                         "\"regex\" style implies "
 818                                                         "\"expand\" modifier"
 819                                                         SLAPD_CONF_UNKNOWN_IGNORED ".\n",
 820                                                         fname, lineno, 0 );
 821 #ifdef SLAPD_CONF_UNKNOWN_BAILOUT
 822                                                 acl_usage();
 823 #endif /* SLAPD_CONF_UNKNOWN_BAILOUT */
 824                                                 break;
 825
 826                                         case ACL_STYLE_EXPAND:
 827                                                 break;
 828
 829                                         default:
 830                                                 /* we'll see later if it's pertinent */
 831                                                 expand = 1;
 832                                                 break;
 833                                         }
 834                                 }
 835
 836                                 /* expand in <who> needs regex in <what> */
 837                                 if ( ( sty == ACL_STYLE_EXPAND || expand )
 838                                                 && a->acl_dn_style != ACL_STYLE_REGEX )
 839                                 {
 840                                         Debug( LDAP_DEBUG_CONFIG | LDAP_DEBUG_ACL, "%s: line %d: "
 841                                                 "\"expand\" style or modifier used "
 842                                                 "in conjunction with "
 843                                                 "a non-regex <what> clause"
 844                                                 SLAPD_CONF_UNKNOWN_IGNORED ".\n",
 845                                                 fname, lineno, 0 );
 846 #ifdef SLAPD_CONF_UNKNOWN_BAILOUT
 847                                                 acl_usage();
 848 #endif /* SLAPD_CONF_UNKNOWN_BAILOUT */
 849                                 }
 850
 851                                 if ( strncasecmp( left, "real", STRLENOF( "real" ) ) == 0 ) {
 852                                         is_realdn = 1;
 853                                         bdn = &b->a_realdn;
 854                                         left += STRLENOF( "real" );
 855                                 }
 856
 857                                 if ( strcasecmp( left, "*" ) == 0 ) {
 858                                         if ( is_realdn ) {
 859                                                 acl_usage();
 860                                         }
 861
 862                                         ber_str2bv( "*", STRLENOF( "*" ), 1, &bv );
 863                                         sty = ACL_STYLE_REGEX;
 864
 865                                 } else if ( strcasecmp( left, "anonymous" ) == 0 ) {
 866                                         ber_str2bv("anonymous", STRLENOF( "anonymous" ), 1, &bv);
 867                                         sty = ACL_STYLE_ANONYMOUS;
 868
 869                                 } else if ( strcasecmp( left, "users" ) == 0 ) {
 870                                         ber_str2bv("users", STRLENOF( "users" ), 1, &bv);
 871                                         sty = ACL_STYLE_USERS;
 872
 873                                 } else if ( strcasecmp( left, "self" ) == 0 ) {
 874                                         ber_str2bv("self", STRLENOF( "self" ), 1, &bv);
 875                                         sty = ACL_STYLE_SELF;
 876
 877                                 } else if ( strcasecmp( left, "dn" ) == 0 ) {
 878                                         if ( sty == ACL_STYLE_REGEX ) {
 879                                                 bdn->a_style = ACL_STYLE_REGEX;
 880                                                 if ( right == NULL ) {
 881                                                         /* no '=' */
 882                                                         ber_str2bv("users",
 883                                                                 STRLENOF( "users" ),
 884                                                                 1, &bv);
 885                                                         bdn->a_style = ACL_STYLE_USERS;
 886
 887                                                 } else if (*right == '\0' ) {
 888                                                         /* dn="" */
 889                                                         ber_str2bv("anonymous",
 890                                                                 STRLENOF( "anonymous" ),
 891                                                                 1, &bv);
 892                                                         bdn->a_style = ACL_STYLE_ANONYMOUS;
 893
 894                                                 } else if ( strcmp( right, "*" ) == 0 ) {
 895                                                         /* dn=* */
 896                                                         /* any or users?  users for now */
 897                                                         ber_str2bv("users",
 898                                                                 STRLENOF( "users" ),
 899                                                                 1, &bv);
 900                                                         bdn->a_style = ACL_STYLE_USERS;
 901
 902                                                 } else if ( strcmp( right, ".+" ) == 0
 903                                                         || strcmp( right, "^.+" ) == 0
 904                                                         || strcmp( right, ".+$" ) == 0
 905                                                         || strcmp( right, "^.+$" ) == 0
 906                                                         || strcmp( right, ".+$$" ) == 0
 907                                                         || strcmp( right, "^.+$$" ) == 0 )
 908                                                 {
 909                                                         ber_str2bv("users",
 910                                                                 STRLENOF( "users" ),
 911                                                                 1, &bv);
 912                                                         bdn->a_style = ACL_STYLE_USERS;
 913
 914                                                 } else if ( strcmp( right, ".*" ) == 0
 915                                                         || strcmp( right, "^.*" ) == 0
 916                                                         || strcmp( right, ".*$" ) == 0
 917                                                         || strcmp( right, "^.*$" ) == 0
 918                                                         || strcmp( right, ".*$$" ) == 0
 919                                                         || strcmp( right, "^.*$$" ) == 0 )
 920                                                 {
 921                                                         ber_str2bv("*",
 922                                                                 STRLENOF( "*" ),
 923                                                                 1, &bv);
 924
 925                                                 } else {
 926                                                         acl_regex_normalized_dn( right, &bv );
 927                                                         if ( !ber_bvccmp( &bv, '*' ) ) {
 928                                                                 regtest( fname, lineno, bv.bv_val );
 929                                                         }
 930                                                 }
 931
 932                                         } else if ( right == NULL || *right == '\0' ) {
 933                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 934                                                         "missing \"=\" in (or value after) \"%s\" "
 935                                                         "in by clause\n",
 936                                                         fname, lineno, left );
 937                                                 acl_usage();
 938
 939                                         } else {
 940                                                 ber_str2bv( right, 0, 1, &bv );
 941                                         }
 942
 943                                 } else {
 944                                         BER_BVZERO( &bv );
 945                                 }
 946
 947                                 if ( !BER_BVISNULL( &bv ) ) {
 948                                         if ( !BER_BVISEMPTY( &bdn->a_pat ) ) {
 949                                                 Debug( LDAP_DEBUG_ANY,
 950                                                         "%s: line %d: dn pattern already specified.\n",
 951                                                         fname, lineno, 0 );
 952                                                 acl_usage();
 953                                         }
 954
 955                                         if ( sty != ACL_STYLE_REGEX &&
 956                                                         sty != ACL_STYLE_ANONYMOUS &&
 957                                                         sty != ACL_STYLE_USERS &&
 958                                                         sty != ACL_STYLE_SELF &&
 959                                                         expand == 0 )
 960                                         {
 961                                                 rc = dnNormalize(0, NULL, NULL,
 962                                                         &bv, &bdn->a_pat, NULL);
 963                                                 if ( rc != LDAP_SUCCESS ) {
 964                                                         Debug( LDAP_DEBUG_ANY,
 965                                                                 "%s: line %d: bad DN \"%s\" in by DN clause\n",
 966                                                                 fname, lineno, bv.bv_val );
 967                                                         acl_usage();
 968                                                 }
 969                                                 free( bv.bv_val );
 970
 971                                         } else {
 972                                                 bdn->a_pat = bv;
 973                                         }
 974                                         bdn->a_style = sty;
 975                                         if ( expand ) {
 976                                                 char    *exp;
 977                                                 int     gotit = 0;
 978
 979                                                 for ( exp = strchr( bdn->a_pat.bv_val, '$' );
 980                                                                 exp && (ber_len_t)(exp - bdn->a_pat.bv_val)
 981                                                                         < bdn->a_pat.bv_len;
 982                                                                 exp = strchr( exp, '$' ) )
 983                                                 {
 984                                                         if ( isdigit( exp[ 1 ] ) ) {
 985                                                                 gotit = 1;
 986                                                                 break;
 987                                                         }
 988                                                 }
 989
 990                                                 if ( gotit == 1 ) {
 991                                                         bdn->a_expand = expand;
 992
 993                                                 } else {
 994                                                         Debug( LDAP_DEBUG_ANY,
 995                                                                 "%s: line %d: \"expand\" used "
 996                                                                 "with no expansions in \"pattern\""
 997                                                                 SLAPD_CONF_UNKNOWN_IGNORED ".\n",
 998                                                                 fname, lineno, 0 );
 999 #ifdef SLAPD_CONF_UNKNOWN_BAILOUT
1000                                                         acl_usage();
1001 #endif /* SLAPD_CONF_UNKNOWN_BAILOUT */
1002                                                 }
1003                                         }
1004                                         if ( sty == ACL_STYLE_SELF ) {
1005                                                 bdn->a_self_level = level;
1006
1007                                         } else {
1008                                                 if ( level < 0 ) {
1009                                                         Debug( LDAP_DEBUG_ANY,
1010                                                                 "%s: line %d: bad negative level \"%d\" "
1011                                                                 "in by DN clause\n",
1012                                                                 fname, lineno, level );
1013                                                         acl_usage();
1014                                                 } else if ( level == 1 ) {
1015                                                         Debug( LDAP_DEBUG_ANY,
1016                                                                 "%s: line %d: \"onelevel\" should be used "
1017                                                                 "instead of \"level{1}\" in by DN clause\n",
1018                                                                 fname, lineno, 0 );
1019                                                 } else if ( level == 0 && sty == ACL_STYLE_LEVEL ) {
1020                                                         Debug( LDAP_DEBUG_ANY,
1021                                                                 "%s: line %d: \"base\" should be used "
1022                                                                 "instead of \"level{0}\" in by DN clause\n",
1023                                                                 fname, lineno, 0 );
1024                                                 }
1025
1026                                                 bdn->a_level = level;
1027                                         }
1028                                         continue;
1029                                 }
1030
1031                                 if ( strcasecmp( left, "dnattr" ) == 0 ) {
1032                                         if ( right == NULL || right[0] == '\0' ) {
1033                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1034                                                         "missing \"=\" in (or value after) \"%s\" "
1035                                                         "in by clause\n",
1036                                                         fname, lineno, left );
1037                                                 acl_usage();
1038                                         }
1039
1040                                         if( bdn->a_at != NULL ) {
1041                                                 Debug( LDAP_DEBUG_ANY,
1042                                                         "%s: line %d: dnattr already specified.\n",
1043                                                         fname, lineno, 0 );
1044                                                 acl_usage();
1045                                         }
1046
1047                                         rc = slap_str2ad( right, &bdn->a_at, &text );
1048
1049                                         if( rc != LDAP_SUCCESS ) {
1050                                                 char    buf[ SLAP_TEXT_BUFLEN ];
1051
1052                                                 snprintf( buf, sizeof( buf ),
1053                                                         "dnattr \"%s\": %s",
1054                                                         right, text );
1055                                                 Debug( LDAP_DEBUG_ANY,
1056                                                         "%s: line %d: %s\n",
1057                                                         fname, lineno, buf );
1058                                                 acl_usage();
1059                                         }
1060
1061
1062                                         if( !is_at_syntax( bdn->a_at->ad_type,
1063                                                 SLAPD_DN_SYNTAX ) &&
1064                                                 !is_at_syntax( bdn->a_at->ad_type,
1065                                                 SLAPD_NAMEUID_SYNTAX ))
1066                                         {
1067                                                 char    buf[ SLAP_TEXT_BUFLEN ];
1068
1069                                                 snprintf( buf, sizeof( buf ),
1070                                                         "dnattr \"%s\": "
1071                                                         "inappropriate syntax: %s\n",
1072                                                         right,
1073                                                         bdn->a_at->ad_type->sat_syntax_oid );
1074                                                 Debug( LDAP_DEBUG_ANY,
1075                                                         "%s: line %d: %s\n",
1076                                                         fname, lineno, buf );
1077                                                 acl_usage();
1078                                         }
1079
1080                                         if( bdn->a_at->ad_type->sat_equality == NULL ) {
1081                                                 Debug( LDAP_DEBUG_ANY,
1082                                                         "%s: line %d: dnattr \"%s\": "
1083                                                         "inappropriate matching (no EQUALITY)\n",
1084                                                         fname, lineno, right );
1085                                                 acl_usage();
1086                                         }
1087
1088                                         continue;
1089                                 }
1090
1091                                 if ( strncasecmp( left, "group", STRLENOF( "group" ) ) == 0 ) {
1092                                         char *name = NULL;
1093                                         char *value = NULL;
1094
1095                                         switch ( sty ) {
1096                                         case ACL_STYLE_REGEX:
1097                                                 /* legacy, tolerated */
1098                                                 Debug( LDAP_DEBUG_CONFIG | LDAP_DEBUG_ACL,
1099                                                         "%s: line %d: "
1100                                                         "deprecated group style \"regex\"; "
1101                                                         "use \"expand\" instead.\n",
1102                                                         fname, lineno, 0 );
1103                                                 sty = ACL_STYLE_EXPAND;
1104                                                 break;
1105
1106                                         case ACL_STYLE_BASE:
1107                                                 /* legal, traditional */
1108                                         case ACL_STYLE_EXPAND:
1109                                                 /* legal, substring expansion; supersedes regex */
1110                                                 break;
1111
1112                                         default:
1113                                                 /* unknown */
1114                                                 Debug( LDAP_DEBUG_ANY,
1115                                                         "%s: line %d: "
1116                                                         "inappropriate style \"%s\" in by clause.\n",
1117                                                         fname, lineno, style );
1118                                                 acl_usage();
1119                                         }
1120
1121                                         if ( right == NULL || right[0] == '\0' ) {
1122                                                 Debug( LDAP_DEBUG_ANY,
1123                                                         "%s: line %d: "
1124                                                         "missing \"=\" in (or value after) \"%s\" "
1125                                                         "in by clause.\n",
1126                                                         fname, lineno, left );
1127                                                 acl_usage();
1128                                         }
1129
1130                                         if ( !BER_BVISEMPTY( &b->a_group_pat ) ) {
1131                                                 Debug( LDAP_DEBUG_ANY,
1132                                                         "%s: line %d: group pattern already specified.\n",
1133                                                         fname, lineno, 0 );
1134                                                 acl_usage();
1135                                         }
1136
1137                                         /* format of string is
1138                                                 "group/objectClassValue/groupAttrName" */
1139                                         if ( ( value = strchr(left, '/') ) != NULL ) {
1140                                                 *value++ = '\0';
1141                                                 if ( *value && ( name = strchr( value, '/' ) ) != NULL ) {
1142                                                         *name++ = '\0';
1143                                                 }
1144                                         }
1145
1146                                         b->a_group_style = sty;
1147                                         if ( sty == ACL_STYLE_EXPAND ) {
1148                                                 acl_regex_normalized_dn( right, &bv );
1149                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
1150                                                         regtest( fname, lineno, bv.bv_val );
1151                                                 }
1152                                                 b->a_group_pat = bv;
1153
1154                                         } else {
1155                                                 ber_str2bv( right, 0, 0, &bv );
1156                                                 rc = dnNormalize( 0, NULL, NULL, &bv,
1157                                                         &b->a_group_pat, NULL );
1158                                                 if ( rc != LDAP_SUCCESS ) {
1159                                                         Debug( LDAP_DEBUG_ANY,
1160                                                                 "%s: line %d: bad DN \"%s\".\n",
1161                                                                 fname, lineno, right );
1162                                                         acl_usage();
1163                                                 }
1164                                         }
1165
1166                                         if ( value && *value ) {
1167                                                 b->a_group_oc = oc_find( value );
1168                                                 *--value = '/';
1169
1170                                                 if ( b->a_group_oc == NULL ) {
1171                                                         Debug( LDAP_DEBUG_ANY,
1172                                                                 "%s: line %d: group objectclass "
1173                                                                 "\"%s\" unknown.\n",
1174                                                                 fname, lineno, value );
1175                                                         acl_usage();
1176                                                 }
1177
1178                                         } else {
1179                                                 b->a_group_oc = oc_find( SLAPD_GROUP_CLASS );
1180
1181                                                 if( b->a_group_oc == NULL ) {
1182                                                         Debug( LDAP_DEBUG_ANY,
1183                                                                 "%s: line %d: group default objectclass "
1184                                                                 "\"%s\" unknown.\n",
1185                                                                 fname, lineno, SLAPD_GROUP_CLASS );
1186                                                         acl_usage();
1187                                                 }
1188                                         }
1189
1190                                         if ( is_object_subclass( slap_schema.si_oc_referral,
1191                                                 b->a_group_oc ) )
1192                                         {
1193                                                 Debug( LDAP_DEBUG_ANY,
1194                                                         "%s: line %d: group objectclass \"%s\" "
1195                                                         "is subclass of referral.\n",
1196                                                         fname, lineno, value );
1197                                                 acl_usage();
1198                                         }
1199
1200                                         if ( is_object_subclass( slap_schema.si_oc_alias,
1201                                                 b->a_group_oc ) )
1202                                         {
1203                                                 Debug( LDAP_DEBUG_ANY,
1204                                                         "%s: line %d: group objectclass \"%s\" "
1205                                                         "is subclass of alias.\n",
1206                                                         fname, lineno, value );
1207                                                 acl_usage();
1208                                         }
1209
1210                                         if ( name && *name ) {
1211                                                 rc = slap_str2ad( name, &b->a_group_at, &text );
1212
1213                                                 if( rc != LDAP_SUCCESS ) {
1214                                                         char    buf[ SLAP_TEXT_BUFLEN ];
1215
1216                                                         snprintf( buf, sizeof( buf ),
1217                                                                 "group \"%s\": %s.",
1218                                                                 right, text );
1219                                                         Debug( LDAP_DEBUG_ANY,
1220                                                                 "%s: line %d: %s\n",
1221                                                                 fname, lineno, buf );
1222                                                         acl_usage();
1223                                                 }
1224                                                 *--name = '/';
1225
1226                                         } else {
1227                                                 rc = slap_str2ad( SLAPD_GROUP_ATTR, &b->a_group_at, &text );
1228
1229                                                 if ( rc != LDAP_SUCCESS ) {
1230                                                         char    buf[ SLAP_TEXT_BUFLEN ];
1231
1232                                                         snprintf( buf, sizeof( buf ),
1233                                                                 "group \"%s\": %s.",
1234                                                                 SLAPD_GROUP_ATTR, text );
1235                                                         Debug( LDAP_DEBUG_ANY,
1236                                                                 "%s: line %d: %s\n",
1237                                                                 fname, lineno, buf );
1238                                                         acl_usage();
1239                                                 }
1240                                         }
1241
1242                                         if ( !is_at_syntax( b->a_group_at->ad_type,
1243                                                 SLAPD_DN_SYNTAX ) &&
1244                                                 !is_at_syntax( b->a_group_at->ad_type,
1245                                                 SLAPD_NAMEUID_SYNTAX ) &&
1246                                                 !is_at_subtype( b->a_group_at->ad_type, slap_schema.si_ad_labeledURI->ad_type ) )
1247                                         {
1248                                                 char    buf[ SLAP_TEXT_BUFLEN ];
1249
1250                                                 snprintf( buf, sizeof( buf ),
1251                                                         "group \"%s\": inappropriate syntax: %s.",
1252                                                         right,
1253                                                         b->a_group_at->ad_type->sat_syntax_oid );
1254                                                 Debug( LDAP_DEBUG_ANY,
1255                                                         "%s: line %d: %s\n",
1256                                                         fname, lineno, buf );
1257                                                 acl_usage();
1258                                         }
1259
1260
1261                                         {
1262                                                 int rc;
1263                                                 struct berval vals[2];
1264
1265                                                 ber_str2bv( b->a_group_oc->soc_oid, 0, 0, &vals[0] );
1266                                                 BER_BVZERO( &vals[1] );
1267
1268                                                 rc = oc_check_allowed( b->a_group_at->ad_type,
1269                                                         vals, NULL );
1270
1271                                                 if( rc != 0 ) {
1272                                                         char    buf[ SLAP_TEXT_BUFLEN ];
1273
1274                                                         snprintf( buf, sizeof( buf ),
1275                                                                 "group: \"%s\" not allowed by \"%s\".",
1276                                                                 b->a_group_at->ad_cname.bv_val,
1277                                                                 b->a_group_oc->soc_oid );
1278                                                         Debug( LDAP_DEBUG_ANY, "%s: line %d: %s\n",
1279                                                                 fname, lineno, buf );
1280                                                         acl_usage();
1281                                                 }
1282                                         }
1283                                         continue;
1284                                 }
1285
1286                                 if ( strcasecmp( left, "peername" ) == 0 ) {
1287                                         switch ( sty ) {
1288                                         case ACL_STYLE_REGEX:
1289                                         case ACL_STYLE_BASE:
1290                                                 /* legal, traditional */
1291                                         case ACL_STYLE_EXPAND:
1292                                                 /* cheap replacement to regex for simple expansion */
1293                                         case ACL_STYLE_IP:
1294                                         case ACL_STYLE_PATH:
1295                                                 /* legal, peername specific */
1296                                                 break;
1297
1298                                         default:
1299                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1300                                                         "inappropriate style \"%s\" in by clause.\n",
1301                                                     fname, lineno, style );
1302                                                 acl_usage();
1303                                         }
1304
1305                                         if ( right == NULL || right[0] == '\0' ) {
1306                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1307                                                         "missing \"=\" in (or value after) \"%s\" "
1308                                                         "in by clause.\n",
1309                                                         fname, lineno, left );
1310                                                 acl_usage();
1311                                         }
1312
1313                                         if ( !BER_BVISEMPTY( &b->a_peername_pat ) ) {
1314                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1315                                                         "peername pattern already specified.\n",
1316                                                         fname, lineno, 0 );
1317                                                 acl_usage();
1318                                         }
1319
1320                                         b->a_peername_style = sty;
1321                                         if ( sty == ACL_STYLE_REGEX ) {
1322                                                 acl_regex_normalized_dn( right, &bv );
1323                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
1324                                                         regtest( fname, lineno, bv.bv_val );
1325                                                 }
1326                                                 b->a_peername_pat = bv;
1327
1328                                         } else {
1329                                                 ber_str2bv( right, 0, 1, &b->a_peername_pat );
1330
1331                                                 if ( sty == ACL_STYLE_IP ) {
1332                                                         char            *addr = NULL,
1333                                                                         *mask = NULL,
1334                                                                         *port = NULL;
1335
1336                                                         split( right, '{', &addr, &port );
1337                                                         split( addr, '%', &addr, &mask );
1338
1339                                                         b->a_peername_addr = inet_addr( addr );
1340                                                         if ( b->a_peername_addr == (unsigned long)(-1) ) {
1341                                                                 /* illegal address */
1342                                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1343                                                                         "illegal peername address \"%s\".\n",
1344                                                                         fname, lineno, addr );
1345                                                                 acl_usage();
1346                                                         }
1347
1348                                                         b->a_peername_mask = (unsigned long)(-1);
1349                                                         if ( mask != NULL ) {
1350                                                                 b->a_peername_mask = inet_addr( mask );
1351                                                                 if ( b->a_peername_mask ==
1352                                                                         (unsigned long)(-1) )
1353                                                                 {
1354                                                                         /* illegal mask */
1355                                                                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1356                                                                                 "illegal peername address mask "
1357                                                                                 "\"%s\".\n",
1358                                                                                 fname, lineno, mask );
1359                                                                         acl_usage();
1360                                                                 }
1361                                                         }
1362
1363                                                         b->a_peername_port = -1;
1364                                                         if ( port ) {
1365                                                                 char    *end = NULL;
1366
1367                                                                 b->a_peername_port = strtol( port, &end, 10 );
1368                                                                 if ( end[0] != '}' ) {
1369                                                                         /* illegal port */
1370                                                                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1371                                                                                 "illegal peername port specification "
1372                                                                                 "\"{%s}\".\n",
1373                                                                                 fname, lineno, port );
1374                                                                         acl_usage();
1375                                                                 }
1376                                                         }
1377                                                 }
1378                                         }
1379                                         continue;
1380                                 }
1381
1382                                 if ( strcasecmp( left, "sockname" ) == 0 ) {
1383                                         switch ( sty ) {
1384                                         case ACL_STYLE_REGEX:
1385                                         case ACL_STYLE_BASE:
1386                                                 /* legal, traditional */
1387                                         case ACL_STYLE_EXPAND:
1388                                                 /* cheap replacement to regex for simple expansion */
1389                                                 break;
1390
1391                                         default:
1392                                                 /* unknown */
1393                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1394                                                         "inappropriate style \"%s\" in by clause\n",
1395                                                     fname, lineno, style );
1396                                                 acl_usage();
1397                                         }
1398
1399                                         if ( right == NULL || right[0] == '\0' ) {
1400                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1401                                                         "missing \"=\" in (or value after) \"%s\" "
1402                                                         "in by clause\n",
1403                                                         fname, lineno, left );
1404                                                 acl_usage();
1405                                         }
1406
1407                                         if ( !BER_BVISNULL( &b->a_sockname_pat ) ) {
1408                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1409                                                         "sockname pattern already specified.\n",
1410                                                         fname, lineno, 0 );
1411                                                 acl_usage();
1412                                         }
1413
1414                                         b->a_sockname_style = sty;
1415                                         if ( sty == ACL_STYLE_REGEX ) {
1416                                                 acl_regex_normalized_dn( right, &bv );
1417                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
1418                                                         regtest( fname, lineno, bv.bv_val );
1419                                                 }
1420                                                 b->a_sockname_pat = bv;
1421
1422                                         } else {
1423                                                 ber_str2bv( right, 0, 1, &b->a_sockname_pat );
1424                                         }
1425                                         continue;
1426                                 }
1427
1428                                 if ( strcasecmp( left, "domain" ) == 0 ) {
1429                                         switch ( sty ) {
1430                                         case ACL_STYLE_REGEX:
1431                                         case ACL_STYLE_BASE:
1432                                         case ACL_STYLE_SUBTREE:
1433                                                 /* legal, traditional */
1434                                                 break;
1435
1436                                         case ACL_STYLE_EXPAND:
1437                                                 /* tolerated: means exact,expand */
1438                                                 if ( expand ) {
1439                                                         Debug( LDAP_DEBUG_ANY,
1440                                                                 "%s: line %d: "
1441                                                                 "\"expand\" modifier "
1442                                                                 "with \"expand\" style.\n",
1443                                                                 fname, lineno, 0 );
1444                                                 }
1445                                                 sty = ACL_STYLE_BASE;
1446                                                 expand = 1;
1447                                                 break;
1448
1449                                         default:
1450                                                 /* unknown */
1451                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1452                                                         "inappropriate style \"%s\" in by clause.\n",
1453                                                     fname, lineno, style );
1454                                                 acl_usage();
1455                                         }
1456
1457                                         if ( right == NULL || right[0] == '\0' ) {
1458                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1459                                                         "missing \"=\" in (or value after) \"%s\" "
1460                                                         "in by clause.\n",
1461                                                         fname, lineno, left );
1462                                                 acl_usage();
1463                                         }
1464
1465                                         if ( !BER_BVISEMPTY( &b->a_domain_pat ) ) {
1466                                                 Debug( LDAP_DEBUG_ANY,
1467                                                         "%s: line %d: domain pattern already specified.\n",
1468                                                         fname, lineno, 0 );
1469                                                 acl_usage();
1470                                         }
1471
1472                                         b->a_domain_style = sty;
1473                                         b->a_domain_expand = expand;
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_domain_pat = bv;
1480
1481                                         } else {
1482                                                 ber_str2bv( right, 0, 1, &b->a_domain_pat );
1483                                         }
1484                                         continue;
1485                                 }
1486
1487                                 if ( strcasecmp( left, "sockurl" ) == 0 ) {
1488                                         switch ( sty ) {
1489                                         case ACL_STYLE_REGEX:
1490                                         case ACL_STYLE_BASE:
1491                                                 /* legal, traditional */
1492                                         case ACL_STYLE_EXPAND:
1493                                                 /* cheap replacement to regex for simple expansion */
1494                                                 break;
1495
1496                                         default:
1497                                                 /* unknown */
1498                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1499                                                         "inappropriate style \"%s\" in by clause.\n",
1500                                                     fname, lineno, style );
1501                                                 acl_usage();
1502                                         }
1503
1504                                         if ( right == NULL || right[0] == '\0' ) {
1505                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1506                                                         "missing \"=\" in (or value after) \"%s\" "
1507                                                         "in by clause.\n",
1508                                                         fname, lineno, left );
1509                                                 acl_usage();
1510                                         }
1511
1512                                         if ( !BER_BVISEMPTY( &b->a_sockurl_pat ) ) {
1513                                                 Debug( LDAP_DEBUG_ANY,
1514                                                         "%s: line %d: sockurl pattern already specified.\n",
1515                                                         fname, lineno, 0 );
1516                                                 acl_usage();
1517                                         }
1518
1519                                         b->a_sockurl_style = sty;
1520                                         if ( sty == ACL_STYLE_REGEX ) {
1521                                                 acl_regex_normalized_dn( right, &bv );
1522                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
1523                                                         regtest( fname, lineno, bv.bv_val );
1524                                                 }
1525                                                 b->a_sockurl_pat = bv;
1526
1527                                         } else {
1528                                                 ber_str2bv( right, 0, 1, &b->a_sockurl_pat );
1529                                         }
1530                                         continue;
1531                                 }
1532
1533                                 if ( strcasecmp( left, "set" ) == 0 ) {
1534                                         switch ( sty ) {
1535                                                 /* deprecated */
1536                                         case ACL_STYLE_REGEX:
1537                                                 Debug( LDAP_DEBUG_CONFIG | LDAP_DEBUG_ACL,
1538                                                         "%s: line %d: "
1539                                                         "deprecated set style "
1540                                                         "\"regex\" in <by> clause; "
1541                                                         "use \"expand\" instead.\n",
1542                                                         fname, lineno, 0 );
1543                                                 sty = ACL_STYLE_EXPAND;
1544                                                 /* FALLTHRU */
1545
1546                                         case ACL_STYLE_BASE:
1547                                         case ACL_STYLE_EXPAND:
1548                                                 break;
1549
1550                                         default:
1551                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1552                                                         "inappropriate style \"%s\" in by clause.\n",
1553                                                         fname, lineno, style );
1554                                                 acl_usage();
1555                                         }
1556
1557                                         if ( !BER_BVISEMPTY( &b->a_set_pat ) ) {
1558                                                 Debug( LDAP_DEBUG_ANY,
1559                                                         "%s: line %d: set attribute already specified.\n",
1560                                                         fname, lineno, 0 );
1561                                                 acl_usage();
1562                                         }
1563
1564                                         if ( right == NULL || *right == '\0' ) {
1565                                                 Debug( LDAP_DEBUG_ANY,
1566                                                         "%s: line %d: no set is defined.\n",
1567                                                         fname, lineno, 0 );
1568                                                 acl_usage();
1569                                         }
1570
1571                                         b->a_set_style = sty;
1572                                         ber_str2bv( right, 0, 1, &b->a_set_pat );
1573
1574                                         continue;
1575                                 }
1576
1577 #ifdef SLAP_DYNACL
1578                                 {
1579                                         char            *name = NULL,
1580                                                         *opts = NULL;
1581
1582                                         if ( strcasecmp( left, "aci" ) == 0 ) {
1583                                                 name = "aci";
1584
1585                                         } else if ( strncasecmp( left, "dynacl/", STRLENOF( "dynacl/" ) ) == 0 ) {
1586                                                 name = &left[ STRLENOF( "dynacl/" ) ];
1587                                                 opts = strchr( name, '/' );
1588                                                 if ( opts ) {
1589                                                         opts[ 0 ] = '\0';
1590                                                         opts++;
1591                                                 }
1592                                         }
1593
1594                                         if ( name ) {
1595                                                 if ( slap_dynacl_config( fname, lineno, b, name, opts, sty, right ) ) {
1596                                                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1597                                                                 "unable to configure dynacl \"%s\".\n",
1598                                                                 fname, lineno, name );
1599                                                         acl_usage();
1600                                                 }
1601
1602                                                 continue;
1603                                         }
1604                                 }
1605 #else /* ! SLAP_DYNACL */
1606
1607 #ifdef SLAPD_ACI_ENABLED
1608                                 if ( strcasecmp( left, "aci" ) == 0 ) {
1609                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
1610                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1611                                                         "inappropriate style \"%s\" in by clause.\n",
1612                                                     fname, lineno, style );
1613                                                 acl_usage();
1614                                         }
1615
1616                                         if( b->a_aci_at != NULL ) {
1617                                                 Debug( LDAP_DEBUG_ANY,
1618                                                         "%s: line %d: ACI attribute already specified.\n",
1619                                                         fname, lineno, 0 );
1620                                                 acl_usage();
1621                                         }
1622
1623                                         if ( right != NULL && *right != '\0' ) {
1624                                                 rc = slap_str2ad( right, &b->a_aci_at, &text );
1625
1626                                                 if( rc != LDAP_SUCCESS ) {
1627                                                         char    buf[ SLAP_TEXT_BUFLEN ];
1628
1629                                                         snprintf( buf, sizeof( buf ),
1630                                                                 "aci \"%s\": %s.",
1631                                                                 right, text );
1632                                                         Debug( LDAP_DEBUG_ANY,
1633                                                                 "%s: line %d: %s\n",
1634                                                                 fname, lineno, buf );
1635                                                         acl_usage();
1636                                                 }
1637
1638                                         } else {
1639                                                 b->a_aci_at = slap_ad_aci;
1640                                         }
1641
1642                                         if( !is_at_syntax( b->a_aci_at->ad_type,
1643                                                 SLAPD_ACI_SYNTAX) )
1644                                         {
1645                                                 char    buf[ SLAP_TEXT_BUFLEN ];
1646
1647                                                 snprintf( buf, sizeof( buf ),
1648                                                         "ACI \"%s\": inappropriate syntax: %s.",
1649                                                         right,
1650                                                         b->a_aci_at->ad_type->sat_syntax_oid );
1651                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: %s\n",
1652                                                         fname, lineno, buf );
1653                                                 acl_usage();
1654                                         }
1655
1656                                         continue;
1657                                 }
1658 #endif /* SLAPD_ACI_ENABLED */
1659 #endif /* ! SLAP_DYNACL */
1660
1661                                 if ( strcasecmp( left, "ssf" ) == 0 ) {
1662                                         if ( sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE ) {
1663                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1664                                                         "inappropriate style \"%s\" in by clause.\n",
1665                                                     fname, lineno, style );
1666                                                 acl_usage();
1667                                         }
1668
1669                                         if ( b->a_authz.sai_ssf ) {
1670                                                 Debug( LDAP_DEBUG_ANY,
1671                                                         "%s: line %d: ssf attribute already specified.\n",
1672                                                         fname, lineno, 0 );
1673                                                 acl_usage();
1674                                         }
1675
1676                                         if ( right == NULL || *right == '\0' ) {
1677                                                 Debug( LDAP_DEBUG_ANY,
1678                                                         "%s: line %d: no ssf is defined.\n",
1679                                                         fname, lineno, 0 );
1680                                                 acl_usage();
1681                                         }
1682
1683                                         b->a_authz.sai_ssf = strtol( right, &next, 10 );
1684                                         if ( next == NULL || next[0] != '\0' ) {
1685                                                 Debug( LDAP_DEBUG_ANY,
1686                                                         "%s: line %d: unable to parse ssf value (%s).\n",
1687                                                         fname, lineno, right );
1688                                                 acl_usage();
1689                                         }
1690
1691                                         if ( !b->a_authz.sai_ssf ) {
1692                                                 Debug( LDAP_DEBUG_ANY,
1693                                                         "%s: line %d: invalid ssf value (%s).\n",
1694                                                         fname, lineno, right );
1695                                                 acl_usage();
1696                                         }
1697                                         continue;
1698                                 }
1699
1700                                 if ( strcasecmp( left, "transport_ssf" ) == 0 ) {
1701                                         if ( sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE ) {
1702                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1703                                                         "inappropriate style \"%s\" in by clause.\n",
1704                                                         fname, lineno, style );
1705                                                 acl_usage();
1706                                         }
1707
1708                                         if ( b->a_authz.sai_transport_ssf ) {
1709                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1710                                                         "transport_ssf attribute already specified.\n",
1711                                                         fname, lineno, 0 );
1712                                                 acl_usage();
1713                                         }
1714
1715                                         if ( right == NULL || *right == '\0' ) {
1716                                                 Debug( LDAP_DEBUG_ANY,
1717                                                         "%s: line %d: no transport_ssf is defined.\n",
1718                                                         fname, lineno, 0 );
1719                                                 acl_usage();
1720                                         }
1721
1722                                         b->a_authz.sai_transport_ssf = strtol( right, &next, 10 );
1723                                         if ( next == NULL || next[0] != '\0' ) {
1724                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1725                                                         "unable to parse transport_ssf value (%s).\n",
1726                                                         fname, lineno, right );
1727                                                 acl_usage();
1728                                         }
1729
1730                                         if ( !b->a_authz.sai_transport_ssf ) {
1731                                                 Debug( LDAP_DEBUG_ANY,
1732                                                         "%s: line %d: invalid transport_ssf value (%s).\n",
1733                                                         fname, lineno, right );
1734                                                 acl_usage();
1735                                         }
1736                                         continue;
1737                                 }
1738
1739                                 if ( strcasecmp( left, "tls_ssf" ) == 0 ) {
1740                                         if ( sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE ) {
1741                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1742                                                         "inappropriate style \"%s\" in by clause.\n",
1743                                                         fname, lineno, style );
1744                                                 acl_usage();
1745                                         }
1746
1747                                         if ( b->a_authz.sai_tls_ssf ) {
1748                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1749                                                         "tls_ssf attribute already specified.\n",
1750                                                         fname, lineno, 0 );
1751                                                 acl_usage();
1752                                         }
1753
1754                                         if ( right == NULL || *right == '\0' ) {
1755                                                 Debug( LDAP_DEBUG_ANY,
1756                                                         "%s: line %d: no tls_ssf is defined\n",
1757                                                         fname, lineno, 0 );
1758                                                 acl_usage();
1759                                         }
1760
1761                                         b->a_authz.sai_tls_ssf = strtol( right, &next, 10 );
1762                                         if ( next == NULL || next[0] != '\0' ) {
1763                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1764                                                         "unable to parse tls_ssf value (%s).\n",
1765                                                         fname, lineno, right );
1766                                                 acl_usage();
1767                                         }
1768
1769                                         if ( !b->a_authz.sai_tls_ssf ) {
1770                                                 Debug( LDAP_DEBUG_ANY,
1771                                                         "%s: line %d: invalid tls_ssf value (%s).\n",
1772                                                         fname, lineno, right );
1773                                                 acl_usage();
1774                                         }
1775                                         continue;
1776                                 }
1777
1778                                 if ( strcasecmp( left, "sasl_ssf" ) == 0 ) {
1779                                         if ( sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE ) {
1780                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1781                                                         "inappropriate style \"%s\" in by clause.\n",
1782                                                         fname, lineno, style );
1783                                                 acl_usage();
1784                                         }
1785
1786                                         if ( b->a_authz.sai_sasl_ssf ) {
1787                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1788                                                         "sasl_ssf attribute already specified.\n",
1789                                                         fname, lineno, 0 );
1790                                                 acl_usage();
1791                                         }
1792
1793                                         if ( right == NULL || *right == '\0' ) {
1794                                                 Debug( LDAP_DEBUG_ANY,
1795                                                         "%s: line %d: no sasl_ssf is defined.\n",
1796                                                         fname, lineno, 0 );
1797                                                 acl_usage();
1798                                         }
1799
1800                                         b->a_authz.sai_sasl_ssf = strtol( right, &next, 10 );
1801                                         if ( next == NULL || next[0] != '\0' ) {
1802                                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1803                                                         "unable to parse sasl_ssf value (%s).\n",
1804                                                         fname, lineno, right );
1805                                                 acl_usage();
1806                                         }
1807
1808                                         if ( !b->a_authz.sai_sasl_ssf ) {
1809                                                 Debug( LDAP_DEBUG_ANY,
1810                                                         "%s: line %d: invalid sasl_ssf value (%s).\n",
1811                                                         fname, lineno, right );
1812                                                 acl_usage();
1813                                         }
1814                                         continue;
1815                                 }
1816
1817                                 if ( right != NULL ) {
1818                                         /* unsplit */
1819                                         right[-1] = '=';
1820                                 }
1821                                 break;
1822                         }
1823
1824                         if ( i == argc || ( strcasecmp( left, "stop" ) == 0 ) ) {
1825                                 /* out of arguments or plain stop */
1826
1827                                 ACL_PRIV_ASSIGN( b->a_access_mask, ACL_PRIV_ADDITIVE );
1828                                 b->a_type = ACL_STOP;
1829
1830                                 access_append( &a->acl_access, b );
1831                                 continue;
1832                         }
1833
1834                         if ( strcasecmp( left, "continue" ) == 0 ) {
1835                                 /* plain continue */
1836
1837                                 ACL_PRIV_ASSIGN( b->a_access_mask, ACL_PRIV_ADDITIVE );
1838                                 b->a_type = ACL_CONTINUE;
1839
1840                                 access_append( &a->acl_access, b );
1841                                 continue;
1842                         }
1843
1844                         if ( strcasecmp( left, "break" ) == 0 ) {
1845                                 /* plain continue */
1846
1847                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
1848                                 b->a_type = ACL_BREAK;
1849
1850                                 access_append( &a->acl_access, b );
1851                                 continue;
1852                         }
1853
1854                         if ( strcasecmp( left, "by" ) == 0 ) {
1855                                 /* we've gone too far */
1856                                 --i;
1857                                 ACL_PRIV_ASSIGN( b->a_access_mask, ACL_PRIV_ADDITIVE );
1858                                 b->a_type = ACL_STOP;
1859
1860                                 access_append( &a->acl_access, b );
1861                                 continue;
1862                         }
1863
1864                         /* get <access> */
1865                         if ( strncasecmp( left, "self", STRLENOF( "self" ) ) == 0 ) {
1866                                 b->a_dn_self = 1;
1867                                 ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( &left[ STRLENOF( "self" ) ] ) );
1868
1869                         } else if ( strncasecmp( left, "realself", STRLENOF( "realself" ) ) == 0 ) {
1870                                 b->a_realdn_self = 1;
1871                                 ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( &left[ STRLENOF( "realself" ) ] ) );
1872
1873                         } else {
1874                                 ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( left ) );
1875                         }
1876
1877                         if ( ACL_IS_INVALID( b->a_access_mask ) ) {
1878                                 Debug( LDAP_DEBUG_ANY,
1879                                         "%s: line %d: expecting <access> got \"%s\".\n",
1880                                         fname, lineno, left );
1881                                 acl_usage();
1882                         }
1883
1884                         b->a_type = ACL_STOP;
1885
1886                         if ( ++i == argc ) {
1887                                 /* out of arguments or plain stop */
1888                                 access_append( &a->acl_access, b );
1889                                 continue;
1890                         }
1891
1892                         if ( strcasecmp( argv[i], "continue" ) == 0 ) {
1893                                 /* plain continue */
1894                                 b->a_type = ACL_CONTINUE;
1895
1896                         } else if ( strcasecmp( argv[i], "break" ) == 0 ) {
1897                                 /* plain continue */
1898                                 b->a_type = ACL_BREAK;
1899
1900                         } else if ( strcasecmp( argv[i], "stop" ) != 0 ) {
1901                                 /* gone to far */
1902                                 i--;
1903                         }
1904
1905                         access_append( &a->acl_access, b );
1906
1907                 } else {
1908                         Debug( LDAP_DEBUG_ANY,
1909                                 "%s: line %d: expecting \"to\" "
1910                                 "or \"by\" got \"%s\"\n",
1911                                 fname, lineno, argv[i] );
1912                         acl_usage();
1913                 }
1914         }
1915
1916         /* if we have no real access clause, complain and do nothing */
1917         if ( a == NULL ) {
1918                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1919                         "warning: no access clause(s) "
1920                         "specified in access line"
1921                         SLAPD_CONF_UNKNOWN_IGNORED ".\n",
1922                         fname, lineno, 0 );
1923 #ifdef SLAPD_CONF_UNKNOWN_BAILOUT
1924                 acl_usage();
1925 #endif /* SLAPD_CONF_UNKNOWN_BAILOUT */
1926
1927         } else {
1928 #ifdef LDAP_DEBUG
1929                 if ( ldap_debug & LDAP_DEBUG_ACL ) {
1930                         print_acl( be, a );
1931                 }
1932 #endif
1933
1934                 if ( a->acl_access == NULL ) {
1935                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1936                                 "warning: no by clause(s) "
1937                                 "specified in access line"
1938                                 SLAPD_CONF_UNKNOWN_IGNORED ".\n",
1939                                 fname, lineno, 0 );
1940 #ifdef SLAPD_CONF_UNKNOWN_BAILOUT
1941                         acl_usage();
1942 #endif /* SLAPD_CONF_UNKNOWN_BAILOUT */
1943                 }
1944
1945                 if ( be != NULL ) {
1946                         if ( !BER_BVISNULL( &be->be_nsuffix[ 1 ] ) ) {
1947                                 Debug( LDAP_DEBUG_ACL, "%s: line %d: warning: "
1948                                         "scope checking only applies to single-valued "
1949                                         "suffix databases\n",
1950                                         fname, lineno, 0 );
1951                                 /* go ahead, since checking is not authoritative */
1952                         }
1953
1954                         switch ( check_scope( be, a ) ) {
1955                         case ACL_SCOPE_UNKNOWN:
1956                                 Debug( LDAP_DEBUG_ACL, "%s: line %d: warning: "
1957                                         "cannot assess the validity of the ACL scope within "
1958                                         "backend naming context\n",
1959                                         fname, lineno, 0 );
1960                                 break;
1961
1962                         case ACL_SCOPE_WARN:
1963                                 Debug( LDAP_DEBUG_ACL, "%s: line %d: warning: "
1964                                         "ACL could be out of scope within backend naming context\n",
1965                                         fname, lineno, 0 );
1966                                 break;
1967
1968                         case ACL_SCOPE_PARTIAL:
1969                                 Debug( LDAP_DEBUG_ACL, "%s: line %d: warning: "
1970                                         "ACL appears to be partially out of scope within "
1971                                         "backend naming context\n",
1972                                         fname, lineno, 0 );
1973                                 break;
1974
1975                         case ACL_SCOPE_ERR:
1976                                 Debug( LDAP_DEBUG_ACL, "%s: line %d: warning: "
1977                                         "ACL appears to be out of scope within "
1978                                         "backend naming context\n",
1979                                         fname, lineno, 0 );
1980                                 break;
1981
1982                         default:
1983                                 break;
1984                         }
1985                         acl_append( &be->be_acl, a, pos );
1986
1987                 } else {
1988                         acl_append( &frontendDB->be_acl, a, pos );
1989                 }
1990         }
1991 }
1992
1993 char *
1994 accessmask2str( slap_mask_t mask, char *buf, int debug )
1995 {
1996         int     none = 1;
1997         char    *ptr = buf;
1998
1999         assert( buf != NULL );
2000
2001         if ( ACL_IS_INVALID( mask ) ) {
2002                 return "invalid";
2003         }
2004
2005         buf[0] = '\0';
2006
2007         if ( ACL_IS_LEVEL( mask ) ) {
2008                 if ( ACL_LVL_IS_NONE(mask) ) {
2009                         ptr = lutil_strcopy( ptr, "none" );
2010
2011                 } else if ( ACL_LVL_IS_DISCLOSE(mask) ) {
2012                         ptr = lutil_strcopy( ptr, "disclose" );
2013
2014                 } else if ( ACL_LVL_IS_AUTH(mask) ) {
2015                         ptr = lutil_strcopy( ptr, "auth" );
2016
2017                 } else if ( ACL_LVL_IS_COMPARE(mask) ) {
2018                         ptr = lutil_strcopy( ptr, "compare" );
2019
2020                 } else if ( ACL_LVL_IS_SEARCH(mask) ) {
2021                         ptr = lutil_strcopy( ptr, "search" );
2022
2023                 } else if ( ACL_LVL_IS_READ(mask) ) {
2024                         ptr = lutil_strcopy( ptr, "read" );
2025
2026                 } else if ( ACL_LVL_IS_WRITE(mask) ) {
2027                         ptr = lutil_strcopy( ptr, "write" );
2028
2029                 } else if ( ACL_LVL_IS_WADD(mask) ) {
2030                         ptr = lutil_strcopy( ptr, "add" );
2031
2032                 } else if ( ACL_LVL_IS_WDEL(mask) ) {
2033                         ptr = lutil_strcopy( ptr, "delete" );
2034
2035                 } else if ( ACL_LVL_IS_MANAGE(mask) ) {
2036                         ptr = lutil_strcopy( ptr, "manage" );
2037
2038                 } else {
2039                         ptr = lutil_strcopy( ptr, "unknown" );
2040                 }
2041
2042                 if ( !debug ) {
2043                         *ptr = '\0';
2044                         return buf;
2045                 }
2046                 *ptr++ = '(';
2047         }
2048
2049         if( ACL_IS_ADDITIVE( mask ) ) {
2050                 *ptr++ = '+';
2051
2052         } else if( ACL_IS_SUBTRACTIVE( mask ) ) {
2053                 *ptr++ = '-';
2054
2055         } else {
2056                 *ptr++ = '=';
2057         }
2058
2059         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_MANAGE) ) {
2060                 none = 0;
2061                 *ptr++ = 'm';
2062         }
2063
2064         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_WRITE) ) {
2065                 none = 0;
2066                 *ptr++ = 'w';
2067
2068         } else if ( ACL_PRIV_ISSET(mask, ACL_PRIV_WADD) ) {
2069                 none = 0;
2070                 *ptr++ = 'a';
2071
2072         } else if ( ACL_PRIV_ISSET(mask, ACL_PRIV_WDEL) ) {
2073                 none = 0;
2074                 *ptr++ = 'z';
2075         }
2076
2077         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_READ) ) {
2078                 none = 0;
2079                 *ptr++ = 'r';
2080         }
2081
2082         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_SEARCH) ) {
2083                 none = 0;
2084                 *ptr++ = 's';
2085         }
2086
2087         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_COMPARE) ) {
2088                 none = 0;
2089                 *ptr++ = 'c';
2090         }
2091
2092         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_AUTH) ) {
2093                 none = 0;
2094                 *ptr++ = 'x';
2095         }
2096
2097         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_DISCLOSE) ) {
2098                 none = 0;
2099                 *ptr++ = 'd';
2100         }
2101
2102         if ( none && ACL_PRIV_ISSET(mask, ACL_PRIV_NONE) ) {
2103                 none = 0;
2104                 *ptr++ = '0';
2105         }
2106
2107         if ( none ) {
2108                 ptr = buf;
2109         }
2110
2111         if ( ACL_IS_LEVEL( mask ) ) {
2112                 *ptr++ = ')';
2113         }
2114
2115         *ptr = '\0';
2116
2117         return buf;
2118 }
2119
2120 slap_mask_t
2121 str2accessmask( const char *str )
2122 {
2123         slap_mask_t     mask;
2124
2125         if( !ASCII_ALPHA(str[0]) ) {
2126                 int i;
2127
2128                 if ( str[0] == '=' ) {
2129                         ACL_INIT(mask);
2130
2131                 } else if( str[0] == '+' ) {
2132                         ACL_PRIV_ASSIGN(mask, ACL_PRIV_ADDITIVE);
2133
2134                 } else if( str[0] == '-' ) {
2135                         ACL_PRIV_ASSIGN(mask, ACL_PRIV_SUBSTRACTIVE);
2136
2137                 } else {
2138                         ACL_INVALIDATE(mask);
2139                         return mask;
2140                 }
2141
2142                 for( i=1; str[i] != '\0'; i++ ) {
2143                         if( TOLOWER((unsigned char) str[i]) == 'm' ) {
2144                                 ACL_PRIV_SET(mask, ACL_PRIV_MANAGE);
2145
2146                         } else if( TOLOWER((unsigned char) str[i]) == 'w' ) {
2147                                 ACL_PRIV_SET(mask, ACL_PRIV_WRITE);
2148
2149                         } else if( TOLOWER((unsigned char) str[i]) == 'a' ) {
2150                                 ACL_PRIV_SET(mask, ACL_PRIV_WADD);
2151
2152                         } else if( TOLOWER((unsigned char) str[i]) == 'z' ) {
2153                                 ACL_PRIV_SET(mask, ACL_PRIV_WDEL);
2154
2155                         } else if( TOLOWER((unsigned char) str[i]) == 'r' ) {
2156                                 ACL_PRIV_SET(mask, ACL_PRIV_READ);
2157
2158                         } else if( TOLOWER((unsigned char) str[i]) == 's' ) {
2159                                 ACL_PRIV_SET(mask, ACL_PRIV_SEARCH);
2160
2161                         } else if( TOLOWER((unsigned char) str[i]) == 'c' ) {
2162                                 ACL_PRIV_SET(mask, ACL_PRIV_COMPARE);
2163
2164                         } else if( TOLOWER((unsigned char) str[i]) == 'x' ) {
2165                                 ACL_PRIV_SET(mask, ACL_PRIV_AUTH);
2166
2167                         } else if( TOLOWER((unsigned char) str[i]) == 'd' ) {
2168                                 ACL_PRIV_SET(mask, ACL_PRIV_DISCLOSE);
2169
2170                         } else if( str[i] != '0' ) {
2171                                 ACL_INVALIDATE(mask);
2172                                 return mask;
2173                         }
2174                 }
2175
2176                 return mask;
2177         }
2178
2179         if ( strcasecmp( str, "none" ) == 0 ) {
2180                 ACL_LVL_ASSIGN_NONE(mask);
2181
2182         } else if ( strcasecmp( str, "disclose" ) == 0 ) {
2183                 ACL_LVL_ASSIGN_DISCLOSE(mask);
2184
2185         } else if ( strcasecmp( str, "auth" ) == 0 ) {
2186                 ACL_LVL_ASSIGN_AUTH(mask);
2187
2188         } else if ( strcasecmp( str, "compare" ) == 0 ) {
2189                 ACL_LVL_ASSIGN_COMPARE(mask);
2190
2191         } else if ( strcasecmp( str, "search" ) == 0 ) {
2192                 ACL_LVL_ASSIGN_SEARCH(mask);
2193
2194         } else if ( strcasecmp( str, "read" ) == 0 ) {
2195                 ACL_LVL_ASSIGN_READ(mask);
2196
2197         } else if ( strcasecmp( str, "add" ) == 0 ) {
2198                 ACL_LVL_ASSIGN_WADD(mask);
2199
2200         } else if ( strcasecmp( str, "delete" ) == 0 ) {
2201                 ACL_LVL_ASSIGN_WDEL(mask);
2202
2203         } else if ( strcasecmp( str, "write" ) == 0 ) {
2204                 ACL_LVL_ASSIGN_WRITE(mask);
2205
2206         } else if ( strcasecmp( str, "manage" ) == 0 ) {
2207                 ACL_LVL_ASSIGN_MANAGE(mask);
2208
2209         } else {
2210                 ACL_INVALIDATE( mask );
2211         }
2212
2213         return mask;
2214 }
2215
2216 static void
2217 acl_usage( void )
2218 {
2219         Debug( LDAP_DEBUG_ANY, "%s%s%s\n",
2220                 "<access clause> ::= access to <what> "
2221                                 "[ by <who> <access> [ <control> ] ]+ \n"
2222                 "<what> ::= * | [dn[.<dnstyle>]=<DN>] [filter=<filter>] [attrs=<attrlist>]\n"
2223                 "<attrlist> ::= <attr> [val[/matchingRule][.<attrstyle>]=<value>] | <attr> , <attrlist>\n"
2224                 "<attr> ::= <attrname> | entry | children\n",
2225                 "<who> ::= [ * | anonymous | users | self | dn[.<dnstyle>]=<DN> ]\n"
2226                         "\t[ realanonymous | realusers | realself | realdn[.<dnstyle>]=<DN> ]\n"
2227                         "\t[dnattr=<attrname>]\n"
2228                         "\t[realdnattr=<attrname>]\n"
2229                         "\t[group[/<objectclass>[/<attrname>]][.<style>]=<group>]\n"
2230                         "\t[peername[.<peernamestyle>]=<peer>] [sockname[.<style>]=<name>]\n"
2231                         "\t[domain[.<domainstyle>]=<domain>] [sockurl[.<style>]=<url>]\n"
2232 #ifdef SLAP_DYNACL
2233                         "\t[dynacl/<name>[/<options>][.<dynstyle>][=<pattern>]]\n"
2234 #else /* ! SLAP_DYNACL */
2235 #ifdef SLAPD_ACI_ENABLED
2236                         "\t[aci[=<attrname>]]\n"
2237 #endif /* SLAPD_ACI_ENABLED */
2238 #endif /* ! SLAP_DYNACL */
2239                         "\t[ssf=<n>] [transport_ssf=<n>] [tls_ssf=<n>] [sasl_ssf=<n>]\n",
2240                 "<style> ::= exact | regex | base(Object)\n"
2241                 "<dnstyle> ::= base(Object) | one(level) | sub(tree) | children | "
2242                         "exact | regex\n"
2243                 "<attrstyle> ::= exact | regex | base(Object) | one(level) | "
2244                         "sub(tree) | children\n"
2245                 "<peernamestyle> ::= exact | regex | ip | path\n"
2246                 "<domainstyle> ::= exact | regex | base(Object) | sub(tree)\n"
2247                 "<access> ::= [[real]self]{<level>|<priv>}\n"
2248                 "<level> ::= none|disclose|auth|compare|search|read|{write|add|delete}|manage\n"
2249                 "<priv> ::= {=|+|-}{0|d|x|c|s|r|{w|a|z}|m}+\n"
2250                 "<control> ::= [ stop | continue | break ]\n"
2251 #ifdef SLAP_DYNACL
2252 #ifdef SLAPD_ACI_ENABLED
2253                 "dynacl:\n"
2254                 "\t<name>=ACI\t<pattern>=<attrname>\n"
2255 #endif /* SLAPD_ACI_ENABLED */
2256 #endif /* ! SLAP_DYNACL */
2257         );
2258         exit( EXIT_FAILURE );
2259 }
2260
2261 /*
2262  * Set pattern to a "normalized" DN from src.
2263  * At present it simply eats the (optional) space after
2264  * a RDN separator (,)
2265  * Eventually will evolve in a more complete normalization
2266  */
2267 static void
2268 acl_regex_normalized_dn(
2269         const char *src,
2270         struct berval *pattern )
2271 {
2272         char *str, *p;
2273         ber_len_t len;
2274
2275         str = ch_strdup( src );
2276         len = strlen( src );
2277
2278         for ( p = str; p && p[0]; p++ ) {
2279                 /* escape */
2280                 if ( p[0] == '\\' && p[1] ) {
2281                         /*
2282                          * if escaping a hex pair we should
2283                          * increment p twice; however, in that
2284                          * case the second hex number does
2285                          * no harm
2286                          */
2287                         p++;
2288                 }
2289
2290                 if ( p[0] == ',' && p[1] == ' ' ) {
2291                         char *q;
2292
2293                         /*
2294                          * too much space should be an error if we are pedantic
2295                          */
2296                         for ( q = &p[2]; q[0] == ' '; q++ ) {
2297                                 /* DO NOTHING */ ;
2298                         }
2299                         AC_MEMCPY( p+1, q, len-(q-str)+1);
2300                 }
2301         }
2302         pattern->bv_val = str;
2303         pattern->bv_len = p - str;
2304
2305         return;
2306 }
2307
2308 static void
2309 split(
2310     char        *line,
2311     int         splitchar,
2312     char        **left,
2313     char        **right )
2314 {
2315         *left = line;
2316         if ( (*right = strchr( line, splitchar )) != NULL ) {
2317                 *((*right)++) = '\0';
2318         }
2319 }
2320
2321 static void
2322 access_append( Access **l, Access *a )
2323 {
2324         for ( ; *l != NULL; l = &(*l)->a_next ) {
2325                 ;       /* Empty */
2326         }
2327
2328         *l = a;
2329 }
2330
2331 void
2332 acl_append( AccessControl **l, AccessControl *a, int pos )
2333 {
2334         int i;
2335
2336         for (i=0 ; i != pos && *l != NULL; l = &(*l)->acl_next, i++ ) {
2337                 ;       /* Empty */
2338         }
2339         if ( *l && a )
2340                 a->acl_next = *l;
2341         *l = a;
2342 }
2343
2344 static void
2345 access_free( Access *a )
2346 {
2347         if ( !BER_BVISNULL( &a->a_dn_pat ) ) {
2348                 free( a->a_dn_pat.bv_val );
2349         }
2350         if ( !BER_BVISNULL( &a->a_realdn_pat ) ) {
2351                 free( a->a_realdn_pat.bv_val );
2352         }
2353         if ( !BER_BVISNULL( &a->a_peername_pat ) ) {
2354                 free( a->a_peername_pat.bv_val );
2355         }
2356         if ( !BER_BVISNULL( &a->a_sockname_pat ) ) {
2357                 free( a->a_sockname_pat.bv_val );
2358         }
2359         if ( !BER_BVISNULL( &a->a_domain_pat ) ) {
2360                 free( a->a_domain_pat.bv_val );
2361         }
2362         if ( !BER_BVISNULL( &a->a_sockurl_pat ) ) {
2363                 free( a->a_sockurl_pat.bv_val );
2364         }
2365         if ( !BER_BVISNULL( &a->a_set_pat ) ) {
2366                 free( a->a_set_pat.bv_val );
2367         }
2368         if ( !BER_BVISNULL( &a->a_group_pat ) ) {
2369                 free( a->a_group_pat.bv_val );
2370         }
2371 #ifdef SLAP_DYNACL
2372         if ( a->a_dynacl != NULL ) {
2373                 slap_dynacl_t   *da;
2374                 for ( da = a->a_dynacl; da; ) {
2375                         slap_dynacl_t   *tmp = da;
2376
2377                         da = da->da_next;
2378
2379                         if ( tmp->da_destroy ) {
2380                                 tmp->da_destroy( tmp->da_private );
2381                         }
2382
2383                         ch_free( tmp );
2384                 }
2385         }
2386 #endif /* SLAP_DYNACL */
2387         free( a );
2388 }
2389
2390 void
2391 acl_free( AccessControl *a )
2392 {
2393         Access *n;
2394         AttributeName *an;
2395
2396         if ( a->acl_filter ) {
2397                 filter_free( a->acl_filter );
2398         }
2399         if ( !BER_BVISNULL( &a->acl_dn_pat ) ) {
2400                 if ( a->acl_dn_style == ACL_STYLE_REGEX ) {
2401                         regfree( &a->acl_dn_re );
2402                 }
2403                 free ( a->acl_dn_pat.bv_val );
2404         }
2405         if ( a->acl_attrs ) {
2406                 for ( an = a->acl_attrs; !BER_BVISNULL( &an->an_name ); an++ ) {
2407                         free( an->an_name.bv_val );
2408                 }
2409                 free( a->acl_attrs );
2410         }
2411         for ( ; a->acl_access; a->acl_access = n ) {
2412                 n = a->acl_access->a_next;
2413                 access_free( a->acl_access );
2414         }
2415         free( a );
2416 }
2417
2418 /* Because backend_startup uses acl_append to tack on the global_acl to
2419  * the end of each backend's acl, we cannot just take one argument and
2420  * merrily free our way to the end of the list. backend_destroy calls us
2421  * with the be_acl in arg1, and global_acl in arg2 to give us a stopping
2422  * point. config_destroy calls us with global_acl in arg1 and NULL in
2423  * arg2, so we then proceed to polish off the global_acl.
2424  */
2425 void
2426 acl_destroy( AccessControl *a, AccessControl *end )
2427 {
2428         AccessControl *n;
2429
2430         for ( ; a && a != end; a = n ) {
2431                 n = a->acl_next;
2432                 acl_free( a );
2433         }
2434 }
2435
2436 char *
2437 access2str( slap_access_t access )
2438 {
2439         if ( access == ACL_NONE ) {
2440                 return "none";
2441
2442         } else if ( access == ACL_DISCLOSE ) {
2443                 return "disclose";
2444
2445         } else if ( access == ACL_AUTH ) {
2446                 return "auth";
2447
2448         } else if ( access == ACL_COMPARE ) {
2449                 return "compare";
2450
2451         } else if ( access == ACL_SEARCH ) {
2452                 return "search";
2453
2454         } else if ( access == ACL_READ ) {
2455                 return "read";
2456
2457         } else if ( access == ACL_WRITE ) {
2458                 return "write";
2459
2460         } else if ( access == ACL_WADD ) {
2461                 return "add";
2462
2463         } else if ( access == ACL_WDEL ) {
2464                 return "delete";
2465
2466         } else if ( access == ACL_MANAGE ) {
2467                 return "manage";
2468
2469         }
2470
2471         return "unknown";
2472 }
2473
2474 slap_access_t
2475 str2access( const char *str )
2476 {
2477         if ( strcasecmp( str, "none" ) == 0 ) {
2478                 return ACL_NONE;
2479
2480         } else if ( strcasecmp( str, "disclose" ) == 0 ) {
2481 #ifndef SLAP_ACL_HONOR_DISCLOSE
2482                 Debug( LDAP_DEBUG_ACL, "str2access: warning, "
2483                         "\"disclose\" privilege disabled.\n",
2484                 0, 0, 0 );
2485 #endif /* SLAP_ACL_HONOR_DISCLOSE */
2486                 return ACL_DISCLOSE;
2487
2488         } else if ( strcasecmp( str, "auth" ) == 0 ) {
2489                 return ACL_AUTH;
2490
2491         } else if ( strcasecmp( str, "compare" ) == 0 ) {
2492                 return ACL_COMPARE;
2493
2494         } else if ( strcasecmp( str, "search" ) == 0 ) {
2495                 return ACL_SEARCH;
2496
2497         } else if ( strcasecmp( str, "read" ) == 0 ) {
2498                 return ACL_READ;
2499
2500         } else if ( strcasecmp( str, "write" ) == 0 ) {
2501                 return ACL_WRITE;
2502
2503         } else if ( strcasecmp( str, "add" ) == 0 ) {
2504                 return ACL_WADD;
2505
2506         } else if ( strcasecmp( str, "delete" ) == 0 ) {
2507                 return ACL_WDEL;
2508
2509         } else if ( strcasecmp( str, "manage" ) == 0 ) {
2510                 return ACL_MANAGE;
2511         }
2512
2513         return( ACL_INVALID_ACCESS );
2514 }
2515
2516 #define ACLBUF_MAXLEN   8192
2517
2518 static char aclbuf[ACLBUF_MAXLEN];
2519
2520 static char *
2521 dnaccess2text( slap_dn_access *bdn, char *ptr, int is_realdn )
2522 {
2523         *ptr++ = ' ';
2524
2525         if ( is_realdn ) {
2526                 ptr = lutil_strcopy( ptr, "real" );
2527         }
2528
2529         if ( ber_bvccmp( &bdn->a_pat, '*' ) ||
2530                 bdn->a_style == ACL_STYLE_ANONYMOUS ||
2531                 bdn->a_style == ACL_STYLE_USERS ||
2532                 bdn->a_style == ACL_STYLE_SELF )
2533         {
2534                 if ( is_realdn ) {
2535                         assert( ! ber_bvccmp( &bdn->a_pat, '*' ) );
2536                 }
2537
2538                 ptr = lutil_strcopy( ptr, bdn->a_pat.bv_val );
2539                 if ( bdn->a_style == ACL_STYLE_SELF && bdn->a_self_level != 0 ) {
2540                         int n = sprintf( ptr, ".level{%d}", bdn->a_self_level );
2541                         if ( n > 0 ) {
2542                                 ptr += n;
2543                         } /* else ? */
2544                 }
2545
2546         } else {
2547                 ptr = lutil_strcopy( ptr, "dn." );
2548                 if ( bdn->a_style == ACL_STYLE_BASE )
2549                         ptr = lutil_strcopy( ptr, style_base );
2550                 else
2551                         ptr = lutil_strcopy( ptr, style_strings[bdn->a_style] );
2552                 if ( bdn->a_style == ACL_STYLE_LEVEL ) {
2553                         int n = sprintf( ptr, "{%d}", bdn->a_level );
2554                         if ( n > 0 ) {
2555                                 ptr += n;
2556                         } /* else ? */
2557                 }
2558                 if ( bdn->a_expand ) {
2559                         ptr = lutil_strcopy( ptr, ",expand" );
2560                 }
2561                 *ptr++ = '=';
2562                 *ptr++ = '"';
2563                 ptr = lutil_strcopy( ptr, bdn->a_pat.bv_val );
2564                 *ptr++ = '"';
2565         }
2566         return ptr;
2567 }
2568
2569 static char *
2570 access2text( Access *b, char *ptr )
2571 {
2572         char maskbuf[ACCESSMASK_MAXLEN];
2573
2574         ptr = lutil_strcopy( ptr, "\tby" );
2575
2576         if ( !BER_BVISEMPTY( &b->a_dn_pat ) ) {
2577                 ptr = dnaccess2text( &b->a_dn, ptr, 0 );
2578         }
2579         if ( b->a_dn_at ) {
2580                 ptr = lutil_strcopy( ptr, " dnattr=" );
2581                 ptr = lutil_strcopy( ptr, b->a_dn_at->ad_cname.bv_val );
2582         }
2583
2584         if ( !BER_BVISEMPTY( &b->a_realdn_pat ) ) {
2585                 ptr = dnaccess2text( &b->a_realdn, ptr, 1 );
2586         }
2587         if ( b->a_realdn_at ) {
2588                 ptr = lutil_strcopy( ptr, " realdnattr=" );
2589                 ptr = lutil_strcopy( ptr, b->a_realdn_at->ad_cname.bv_val );
2590         }
2591
2592         if ( !BER_BVISEMPTY( &b->a_group_pat ) ) {
2593                 ptr = lutil_strcopy( ptr, " group/" );
2594                 ptr = lutil_strcopy( ptr, b->a_group_oc ?
2595                         b->a_group_oc->soc_cname.bv_val : SLAPD_GROUP_CLASS );
2596                 *ptr++ = '/';
2597                 ptr = lutil_strcopy( ptr, b->a_group_at ?
2598                         b->a_group_at->ad_cname.bv_val : SLAPD_GROUP_ATTR );
2599                 *ptr++ = '.';
2600                 ptr = lutil_strcopy( ptr, style_strings[b->a_group_style] );
2601                 *ptr++ = '=';
2602                 *ptr++ = '"';
2603                 ptr = lutil_strcopy( ptr, b->a_group_pat.bv_val );
2604                 *ptr++ = '"';
2605         }
2606
2607         if ( !BER_BVISEMPTY( &b->a_peername_pat ) ) {
2608                 ptr = lutil_strcopy( ptr, " peername" );
2609                 *ptr++ = '.';
2610                 ptr = lutil_strcopy( ptr, style_strings[b->a_peername_style] );
2611                 *ptr++ = '=';
2612                 *ptr++ = '"';
2613                 ptr = lutil_strcopy( ptr, b->a_peername_pat.bv_val );
2614                 *ptr++ = '"';
2615         }
2616
2617         if ( !BER_BVISEMPTY( &b->a_sockname_pat ) ) {
2618                 ptr = lutil_strcopy( ptr, " sockname" );
2619                 *ptr++ = '.';
2620                 ptr = lutil_strcopy( ptr, style_strings[b->a_sockname_style] );
2621                 *ptr++ = '=';
2622                 *ptr++ = '"';
2623                 ptr = lutil_strcopy( ptr, b->a_sockname_pat.bv_val );
2624                 *ptr++ = '"';
2625         }
2626
2627         if ( !BER_BVISEMPTY( &b->a_domain_pat ) ) {
2628                 ptr = lutil_strcopy( ptr, " domain" );
2629                 *ptr++ = '.';
2630                 ptr = lutil_strcopy( ptr, style_strings[b->a_domain_style] );
2631                 if ( b->a_domain_expand ) {
2632                         ptr = lutil_strcopy( ptr, ",expand" );
2633                 }
2634                 *ptr++ = '=';
2635                 ptr = lutil_strcopy( ptr, b->a_domain_pat.bv_val );
2636         }
2637
2638         if ( !BER_BVISEMPTY( &b->a_sockurl_pat ) ) {
2639                 ptr = lutil_strcopy( ptr, " sockurl" );
2640                 *ptr++ = '.';
2641                 ptr = lutil_strcopy( ptr, style_strings[b->a_sockurl_style] );
2642                 *ptr++ = '=';
2643                 *ptr++ = '"';
2644                 ptr = lutil_strcopy( ptr, b->a_sockurl_pat.bv_val );
2645                 *ptr++ = '"';
2646         }
2647
2648         if ( !BER_BVISEMPTY( &b->a_set_pat ) ) {
2649                 ptr = lutil_strcopy( ptr, " set" );
2650                 *ptr++ = '.';
2651                 ptr = lutil_strcopy( ptr, style_strings[b->a_set_style] );
2652                 *ptr++ = '=';
2653                 *ptr++ = '"';
2654                 ptr = lutil_strcopy( ptr, b->a_set_pat.bv_val );
2655                 *ptr++ = '"';
2656         }
2657
2658 #ifdef SLAP_DYNACL
2659         if ( b->a_dynacl ) {
2660                 slap_dynacl_t   *da;
2661
2662                 for ( da = b->a_dynacl; da; da = da->da_next ) {
2663                         if ( da->da_unparse ) {
2664                                 struct berval bv = BER_BVNULL;
2665                                 (void)( *da->da_unparse )( da->da_private, &bv );
2666                                 assert( !BER_BVISNULL( &bv ) );
2667                                 ptr = lutil_strcopy( ptr, bv.bv_val );
2668                                 ch_free( bv.bv_val );
2669                         }
2670                 }
2671         }
2672 #else /* ! SLAP_DYNACL */
2673 #ifdef SLAPD_ACI_ENABLED
2674         if ( b->a_aci_at != NULL ) {
2675                 ptr = lutil_strcopy( ptr, " aci=" );
2676                 ptr = lutil_strcopy( ptr, b->a_aci_at->ad_cname.bv_val );
2677         }
2678 #endif
2679 #endif /* SLAP_DYNACL */
2680
2681         /* Security Strength Factors */
2682         if ( b->a_authz.sai_ssf ) {
2683                 ptr += sprintf( ptr, " ssf=%u",
2684                         b->a_authz.sai_ssf );
2685         }
2686         if ( b->a_authz.sai_transport_ssf ) {
2687                 ptr += sprintf( ptr, " transport_ssf=%u",
2688                         b->a_authz.sai_transport_ssf );
2689         }
2690         if ( b->a_authz.sai_tls_ssf ) {
2691                 ptr += sprintf( ptr, " tls_ssf=%u",
2692                         b->a_authz.sai_tls_ssf );
2693         }
2694         if ( b->a_authz.sai_sasl_ssf ) {
2695                 ptr += sprintf( ptr, " sasl_ssf=%u",
2696                         b->a_authz.sai_sasl_ssf );
2697         }
2698
2699         *ptr++ = ' ';
2700         if ( b->a_dn_self ) {
2701                 ptr = lutil_strcopy( ptr, "self" );
2702         } else if ( b->a_realdn_self ) {
2703                 ptr = lutil_strcopy( ptr, "realself" );
2704         }
2705         ptr = lutil_strcopy( ptr, accessmask2str( b->a_access_mask, maskbuf, 0 ));
2706         if ( !maskbuf[0] ) ptr--;
2707
2708         if( b->a_type == ACL_BREAK ) {
2709                 ptr = lutil_strcopy( ptr, " break" );
2710
2711         } else if( b->a_type == ACL_CONTINUE ) {
2712                 ptr = lutil_strcopy( ptr, " continue" );
2713
2714         } else if( b->a_type != ACL_STOP ) {
2715                 ptr = lutil_strcopy( ptr, " unknown-control" );
2716         } else {
2717                 if ( !maskbuf[0] ) ptr = lutil_strcopy( ptr, " stop" );
2718         }
2719         *ptr++ = '\n';
2720
2721         return ptr;
2722 }
2723
2724 void
2725 acl_unparse( AccessControl *a, struct berval *bv )
2726 {
2727         Access  *b;
2728         char    *ptr;
2729         int     to = 0;
2730
2731         bv->bv_val = aclbuf;
2732         bv->bv_len = 0;
2733
2734         ptr = bv->bv_val;
2735
2736         ptr = lutil_strcopy( ptr, "to" );
2737         if ( !BER_BVISNULL( &a->acl_dn_pat ) ) {
2738                 to++;
2739                 ptr = lutil_strcopy( ptr, " dn." );
2740                 if ( a->acl_dn_style == ACL_STYLE_BASE )
2741                         ptr = lutil_strcopy( ptr, style_base );
2742                 else
2743                         ptr = lutil_strcopy( ptr, style_strings[a->acl_dn_style] );
2744                 *ptr++ = '=';
2745                 *ptr++ = '"';
2746                 ptr = lutil_strcopy( ptr, a->acl_dn_pat.bv_val );
2747                 ptr = lutil_strcopy( ptr, "\"\n" );
2748         }
2749
2750         if ( a->acl_filter != NULL ) {
2751                 struct berval   bv = BER_BVNULL;
2752
2753                 to++;
2754                 filter2bv( a->acl_filter, &bv );
2755                 ptr = lutil_strcopy( ptr, " filter=\"" );
2756                 ptr = lutil_strcopy( ptr, bv.bv_val );
2757                 *ptr++ = '"';
2758                 *ptr++ = '\n';
2759                 ch_free( bv.bv_val );
2760         }
2761
2762         if ( a->acl_attrs != NULL ) {
2763                 int     first = 1;
2764                 AttributeName *an;
2765                 to++;
2766
2767                 ptr = lutil_strcopy( ptr, " attrs=" );
2768                 for ( an = a->acl_attrs; an && !BER_BVISNULL( &an->an_name ); an++ ) {
2769                         if ( ! first ) *ptr++ = ',';
2770                         if (an->an_oc) {
2771                                 *ptr++ = an->an_oc_exclude ? '!' : '@';
2772                                 ptr = lutil_strcopy( ptr, an->an_oc->soc_cname.bv_val );
2773
2774                         } else {
2775                                 ptr = lutil_strcopy( ptr, an->an_name.bv_val );
2776                         }
2777                         first = 0;
2778                 }
2779                 *ptr++ = '\n';
2780         }
2781
2782         if ( !BER_BVISEMPTY( &a->acl_attrval ) ) {
2783                 to++;
2784                 ptr = lutil_strcopy( ptr, " val." );
2785                 if ( a->acl_attrval_style == ACL_STYLE_BASE &&
2786                         a->acl_attrs[0].an_desc->ad_type->sat_syntax ==
2787                                 slap_schema.si_syn_distinguishedName )
2788                         ptr = lutil_strcopy( ptr, style_base );
2789                 else
2790                         ptr = lutil_strcopy( ptr, style_strings[a->acl_attrval_style] );
2791                 *ptr++ = '=';
2792                 *ptr++ = '"';
2793                 ptr = lutil_strcopy( ptr, a->acl_attrval.bv_val );
2794                 *ptr++ = '"';
2795                 *ptr++ = '\n';
2796         }
2797
2798         if( !to ) {
2799                 ptr = lutil_strcopy( ptr, " *\n" );
2800         }
2801
2802         for ( b = a->acl_access; b != NULL; b = b->a_next ) {
2803                 ptr = access2text( b, ptr );
2804         }
2805         *ptr = '\0';
2806         bv->bv_len = ptr - bv->bv_val;
2807 }
2808
2809 #ifdef LDAP_DEBUG
2810 static void
2811 print_acl( Backend *be, AccessControl *a )
2812 {
2813         struct berval bv;
2814
2815         acl_unparse( a, &bv );
2816         fprintf( stderr, "%s ACL: access %s\n",
2817                 be == NULL ? "Global" : "Backend", bv.bv_val );
2818 }
2819 #endif /* LDAP_DEBUG */