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

   1 /* aclparse.c - routines to parse and check acl's */
   2 /* $OpenLDAP$ */
   3 /*
   4  * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
   5  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   6  */
   7
   8 #include "portable.h"
   9
  10 #include <stdio.h>
  11
  12 #include <ac/ctype.h>
  13 #include <ac/regex.h>
  14 #include <ac/socket.h>
  15 #include <ac/string.h>
  16 #include <ac/unistd.h>
  17
  18 #include "slap.h"
  19
  20 static void             split(char *line, int splitchar, char **left, char **right);
  21 static void             access_append(Access **l, Access *a);
  22 static void             acl_usage(void) LDAP_GCCATTR((noreturn));
  23
  24 static void             acl_regex_normalized_dn(struct berval *pattern);
  25
  26 #ifdef LDAP_DEBUG
  27 static void             print_acl(Backend *be, AccessControl *a);
  28 static void             print_access(Access *b);
  29 #endif
  30
  31 static int
  32 regtest(const char *fname, int lineno, char *pat) {
  33         int e;
  34         regex_t re;
  35
  36         char buf[512];
  37         unsigned size;
  38
  39         char *sp;
  40         char *dp;
  41         int  flag;
  42
  43         sp = pat;
  44         dp = buf;
  45         size = 0;
  46         buf[0] = '\0';
  47
  48         for (size = 0, flag = 0; (size < sizeof(buf)) && *sp; sp++) {
  49                 if (flag) {
  50                         if (*sp == '$'|| (*sp >= '0' && *sp <= '9')) {
  51                                 *dp++ = *sp;
  52                                 size++;
  53                         }
  54                         flag = 0;
  55
  56                 } else {
  57                         if (*sp == '$') {
  58                                 flag = 1;
  59                         } else {
  60                                 *dp++ = *sp;
  61                                 size++;
  62                         }
  63                 }
  64         }
  65
  66         *dp = '\0';
  67         if ( size >= (sizeof(buf)-1) ) {
  68                 fprintf( stderr,
  69                         "%s: line %d: regular expression \"%s\" too large\n",
  70                         fname, lineno, pat );
  71                 acl_usage();
  72         }
  73
  74         if ((e = regcomp(&re, buf, REG_EXTENDED|REG_ICASE))) {
  75                 char error[512];
  76                 regerror(e, &re, error, sizeof(error));
  77                 fprintf( stderr,
  78                         "%s: line %d: regular expression \"%s\" bad because of %s\n",
  79                         fname, lineno, pat, error );
  80                 acl_usage();
  81                 return(0);
  82         }
  83         regfree(&re);
  84         return(1);
  85 }
  86
  87 void
  88 parse_acl(
  89     Backend     *be,
  90     const char  *fname,
  91     int         lineno,
  92     int         argc,
  93     char        **argv
  94 )
  95 {
  96         int             i;
  97         char            *left, *right, *style;
  98         struct berval   bv;
  99         AccessControl   *a;
 100         Access  *b;
 101         int rc;
 102         const char *text;
 103
 104         a = NULL;
 105         for ( i = 1; i < argc; i++ ) {
 106                 /* to clause - select which entries are protected */
 107                 if ( strcasecmp( argv[i], "to" ) == 0 ) {
 108                         if ( a != NULL ) {
 109                                 fprintf( stderr,
 110                 "%s: line %d: only one to clause allowed in access line\n",
 111                                     fname, lineno );
 112                                 acl_usage();
 113                         }
 114                         a = (AccessControl *) ch_calloc( 1, sizeof(AccessControl) );
 115                         for ( ++i; i < argc; i++ ) {
 116                                 if ( strcasecmp( argv[i], "by" ) == 0 ) {
 117                                         i--;
 118                                         break;
 119                                 }
 120
 121                                 if ( strcasecmp( argv[i], "*" ) == 0 ) {
 122                                         if( a->acl_dn_pat.bv_len != 0 ) {
 123                                                 fprintf( stderr,
 124                                                         "%s: line %d: dn pattern"
 125                                                         " already specified in to clause.\n",
 126                                                         fname, lineno );
 127                                                 acl_usage();
 128                                         }
 129
 130                                         a->acl_dn_pat.bv_val = ch_strdup( "*" );
 131                                         a->acl_dn_pat.bv_len = 1;
 132                                         continue;
 133                                 }
 134
 135                                 split( argv[i], '=', &left, &right );
 136                                 split( left, '.', &left, &style );
 137
 138                                 if ( right == NULL ) {
 139                                         fprintf( stderr,
 140         "%s: line %d: missing \"=\" in \"%s\" in to clause\n",
 141                                             fname, lineno, left );
 142                                         acl_usage();
 143                                 }
 144
 145                                 if ( strcasecmp( left, "dn" ) == 0 ) {
 146                                         if( a->acl_dn_pat.bv_len != 0 ) {
 147                                                 fprintf( stderr,
 148                                                         "%s: line %d: dn pattern"
 149                                                         " already specified in to clause.\n",
 150                                                         fname, lineno );
 151                                                 acl_usage();
 152                                         }
 153
 154                                         if ( style == NULL || *style == '\0'
 155                                                 || strcasecmp( style, "regex" ) == 0 )
 156                                         {
 157                                                 a->acl_dn_style = ACL_STYLE_REGEX;
 158                                                 if ( strcmp(right, "*") == 0
 159                                                         || strcmp(right, ".*") == 0
 160                                                         || strcmp(right, ".*$") == 0
 161                                                         || strcmp(right, "^.*") == 0
 162                                                         || strcmp(right, "^.*$$") == 0
 163                                                         || strcmp(right, ".*$$") == 0
 164                                                         || strcmp(right, "^.*$$") == 0 )
 165                                                 {
 166                                                         a->acl_dn_pat.bv_val = ch_strdup( "*" );
 167                                                         a->acl_dn_pat.bv_len = 1;
 168
 169                                                 } else {
 170                                                         a->acl_dn_pat.bv_val = right;
 171                                                         acl_regex_normalized_dn( &a->acl_dn_pat );
 172                                                 }
 173                                         } else if ( strcasecmp( style, "base" ) == 0 ) {
 174                                                 a->acl_dn_style = ACL_STYLE_BASE;
 175                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 176                                         } else if ( strcasecmp( style, "one" ) == 0 ) {
 177                                                 a->acl_dn_style = ACL_STYLE_ONE;
 178                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 179                                         } else if ( strcasecmp( style, "subtree" ) == 0 ) {
 180                                                 a->acl_dn_style = ACL_STYLE_SUBTREE;
 181                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 182                                         } else if ( strcasecmp( style, "children" ) == 0 ) {
 183                                                 a->acl_dn_style = ACL_STYLE_CHILDREN;
 184                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 185                                         } else {
 186                                                 fprintf( stderr,
 187         "%s: line %d: unknown dn style \"%s\" in to clause\n",
 188                                                     fname, lineno, style );
 189                                                 acl_usage();
 190                                         }
 191
 192                                         continue;
 193                                 }
 194
 195                                 if ( strcasecmp( left, "filter" ) == 0 ) {
 196                                         if ( (a->acl_filter = str2filter(
 197                                             right )) == NULL ) {
 198                                                 fprintf( stderr,
 199                                 "%s: line %d: bad filter \"%s\" in to clause\n",
 200                                                     fname, lineno, right );
 201                                                 acl_usage();
 202                                         }
 203
 204                                 } else if ( strncasecmp( left, "attr", 4 ) == 0 ) {
 205                                         a->acl_attrs = str2bvec( a->acl_attrs,
 206                                                 right, "," );
 207                                 } else {
 208                                         fprintf( stderr,
 209                                                 "%s: line %d: expecting <what> got \"%s\"\n",
 210                                             fname, lineno, left );
 211                                         acl_usage();
 212                                 }
 213                         }
 214
 215                         if ( a->acl_dn_pat.bv_len != 0 && strcmp(a->acl_dn_pat.bv_val, "*") == 0) {
 216                                 free( a->acl_dn_pat.bv_val );
 217                                 a->acl_dn_pat.bv_val = NULL;
 218                                 a->acl_dn_pat.bv_len = 0;
 219                         }
 220
 221                         if( a->acl_dn_pat.bv_len != 0 ) {
 222                                 if ( a->acl_dn_style != ACL_STYLE_REGEX )
 223                                 {
 224                                         struct berval *bv = NULL;
 225                                         dnNormalize( NULL, &a->acl_dn_pat, &bv);
 226                                         free( a->acl_dn_pat.bv_val );
 227                                         a->acl_dn_pat = *bv;
 228                                         free( bv );
 229                                 } else {
 230                                         int e = regcomp( &a->acl_dn_re, a->acl_dn_pat.bv_val,
 231                                                          REG_EXTENDED | REG_ICASE );
 232                                         if ( e ) {
 233                                                 char buf[512];
 234                                                 regerror( e, &a->acl_dn_re, buf, sizeof(buf) );
 235                                                 fprintf( stderr,
 236                                         "%s: line %d: regular expression \"%s\" bad because of %s\n",
 237                                                          fname, lineno, right, buf );
 238                                                 acl_usage();
 239                                         }
 240                                 }
 241                         }
 242
 243                 /* by clause - select who has what access to entries */
 244                 } else if ( strcasecmp( argv[i], "by" ) == 0 ) {
 245                         if ( a == NULL ) {
 246                                 fprintf( stderr,
 247                                         "%s: line %d: to clause required before by clause in access line\n",
 248                                     fname, lineno );
 249                                 acl_usage();
 250                         }
 251
 252                         /*
 253                          * by clause consists of <who> and <access>
 254                          */
 255
 256                         b = (Access *) ch_calloc( 1, sizeof(Access) );
 257
 258                         ACL_INVALIDATE( b->a_access_mask );
 259
 260                         if ( ++i == argc ) {
 261                                 fprintf( stderr,
 262                             "%s: line %d: premature eol: expecting <who>\n",
 263                                     fname, lineno );
 264                                 acl_usage();
 265                         }
 266
 267                         /* get <who> */
 268                         for ( ; i < argc; i++ ) {
 269                                 slap_style_t sty = ACL_STYLE_REGEX;
 270
 271                                 split( argv[i], '=', &left, &right );
 272                                 split( left, '.', &left, &style );
 273                                 if ( style == NULL || *style == '\0'
 274                                         || strcasecmp( style, "regex" ) == 0 )
 275                                 {
 276                                         sty = ACL_STYLE_REGEX;
 277                                 } else if ( strcasecmp( style, "exact" ) == 0 ) {
 278                                         sty = ACL_STYLE_EXACT;
 279                                 } else if ( strcasecmp( style, "base" ) == 0 ) {
 280                                         sty = ACL_STYLE_BASE;
 281                                 } else if ( strcasecmp( style, "one" ) == 0 ) {
 282                                         sty = ACL_STYLE_ONE;
 283                                 } else if ( strcasecmp( style, "subtree" ) == 0 ) {
 284                                         sty = ACL_STYLE_SUBTREE;
 285                                 } else if ( strcasecmp( style, "children" ) == 0 ) {
 286                                         sty = ACL_STYLE_CHILDREN;
 287                                 } else {
 288                                         fprintf( stderr,
 289                                                 "%s: line %d: unknown style \"%s\" in by clause\n",
 290                                             fname, lineno, style );
 291                                         acl_usage();
 292                                 }
 293
 294                                 if ( strcasecmp( argv[i], "*" ) == 0 ) {
 295                                         bv.bv_val = ch_strdup( "*" );
 296                                         bv.bv_len = 1;
 297
 298                                 } else if ( strcasecmp( argv[i], "anonymous" ) == 0 ) {
 299                                         ber_str2bv("anonymous",
 300                                                 sizeof("anonymous")-1,
 301                                                 1, &bv);
 302
 303                                 } else if ( strcasecmp( argv[i], "self" ) == 0 ) {
 304                                         ber_str2bv("self",
 305                                                 sizeof("self")-1,
 306                                                 1, &bv);
 307
 308                                 } else if ( strcasecmp( argv[i], "users" ) == 0 ) {
 309                                         ber_str2bv("users",
 310                                                 sizeof("users")-1,
 311                                                 1, &bv);
 312
 313                                 } else if ( strcasecmp( left, "dn" ) == 0 ) {
 314                                         if ( sty == ACL_STYLE_REGEX ) {
 315                                                 b->a_dn_style = ACL_STYLE_REGEX;
 316                                                 if( right == NULL ) {
 317                                                         /* no '=' */
 318                                                         ber_str2bv("users",
 319                                                                 sizeof("users")-1,
 320                                                                 1, &bv);
 321                                                 } else if (*right == '\0' ) {
 322                                                         /* dn="" */
 323                                                         ber_str2bv("anonymous",
 324                                                                 sizeof("anonymous")-1,
 325                                                                 1, &bv);
 326                                                 } else if ( strcmp( right, "*" ) == 0 ) {
 327                                                         /* dn=* */
 328                                                         /* any or users?  users for now */
 329                                                         ber_str2bv("users",
 330                                                                 sizeof("users")-1,
 331                                                                 1, &bv);
 332                                                 } else if ( strcmp( right, ".+" ) == 0
 333                                                         || strcmp( right, "^.+" ) == 0
 334                                                         || strcmp( right, ".+$" ) == 0
 335                                                         || strcmp( right, "^.+$" ) == 0
 336                                                         || strcmp( right, ".+$$" ) == 0
 337                                                         || strcmp( right, "^.+$$" ) == 0 )
 338                                                 {
 339                                                         ber_str2bv("users",
 340                                                                 sizeof("users")-1,
 341                                                                 1, &bv);
 342                                                 } else if ( strcmp( right, ".*" ) == 0
 343                                                         || strcmp( right, "^.*" ) == 0
 344                                                         || strcmp( right, ".*$" ) == 0
 345                                                         || strcmp( right, "^.*$" ) == 0
 346                                                         || strcmp( right, ".*$$" ) == 0
 347                                                         || strcmp( right, "^.*$$" ) == 0 )
 348                                                 {
 349                                                         ber_str2bv("*",
 350                                                                 sizeof("*")-1,
 351                                                                 1, &bv);
 352
 353                                                 } else {
 354                                                         bv.bv_val = right;
 355                                                         acl_regex_normalized_dn( &bv );
 356                                                         regtest(fname, lineno, bv.bv_val);
 357                                                 }
 358                                         } else if ( right == NULL || *right == '\0' ) {
 359                                                 fprintf( stderr,
 360                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 361                                                     fname, lineno, left );
 362                                                 acl_usage();
 363
 364                                         } else {
 365                                                 ber_str2bv( right, 0, 1, &bv );
 366                                         }
 367
 368                                 } else {
 369                                         bv.bv_val = NULL;
 370                                 }
 371
 372                                 if( bv.bv_val != NULL ) {
 373                                         if( b->a_dn_pat.bv_len != 0 ) {
 374                                                 fprintf( stderr,
 375                                                     "%s: line %d: dn pattern already specified.\n",
 376                                                     fname, lineno );
 377                                                 acl_usage();
 378                                         }
 379
 380                                         if ( sty != ACL_STYLE_REGEX ) {
 381                                                 struct berval *ndn = NULL;
 382                                                 dnNormalize(NULL, &bv, &ndn);
 383                                                 b->a_dn_pat = *ndn;
 384                                                 free(ndn);
 385                                                 free(bv.bv_val);
 386                                         } else {
 387                                                 b->a_dn_pat = bv;
 388                                         }
 389                                         b->a_dn_style = sty;
 390                                         continue;
 391                                 }
 392
 393                                 if ( strcasecmp( left, "dnattr" ) == 0 ) {
 394                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 395                                                 fprintf( stderr,
 396                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 397                                                         fname, lineno, left );
 398                                                 acl_usage();
 399                                         }
 400
 401                                         if( b->a_dn_at != NULL ) {
 402                                                 fprintf( stderr,
 403                                                         "%s: line %d: dnattr already specified.\n",
 404                                                         fname, lineno );
 405                                                 acl_usage();
 406                                         }
 407
 408                                         rc = slap_str2ad( right, &b->a_dn_at, &text );
 409
 410                                         if( rc != LDAP_SUCCESS ) {
 411                                                 fprintf( stderr,
 412                                                         "%s: line %d: dnattr \"%s\": %s\n",
 413                                                         fname, lineno, right, text );
 414                                                 acl_usage();
 415                                         }
 416
 417
 418                                         if( !is_at_syntax( b->a_dn_at->ad_type,
 419                                                 SLAPD_DN_SYNTAX ) &&
 420                                                 !is_at_syntax( b->a_dn_at->ad_type,
 421                                                 SLAPD_NAMEUID_SYNTAX ))
 422                                         {
 423                                                 fprintf( stderr,
 424                                                         "%s: line %d: dnattr \"%s\": "
 425                                                         "inappropriate syntax: %s\n",
 426                                                         fname, lineno, right,
 427                                                         b->a_dn_at->ad_type->sat_syntax_oid );
 428                                                 acl_usage();
 429                                         }
 430
 431                                         continue;
 432                                 }
 433
 434                                 if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 435                                         fprintf( stderr,
 436                                                 "%s: line %d: inappropriate style \"%s\" in by clause\n",
 437                                             fname, lineno, style );
 438                                         acl_usage();
 439                                 }
 440
 441                                 if ( strncasecmp( left, "group", sizeof("group")-1 ) == 0 ) {
 442                                         char *name = NULL;
 443                                         char *value = NULL;
 444
 445                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 446                                                 fprintf( stderr,
 447                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 448                                                         fname, lineno, left );
 449                                                 acl_usage();
 450                                         }
 451
 452                                         if( b->a_group_pat.bv_len ) {
 453                                                 fprintf( stderr,
 454                                                         "%s: line %d: group pattern already specified.\n",
 455                                                         fname, lineno );
 456                                                 acl_usage();
 457                                         }
 458
 459                                         /* format of string is "group/objectClassValue/groupAttrName" */
 460                                         if ((value = strchr(left, '/')) != NULL) {
 461                                                 *value++ = '\0';
 462                                                 if (*value
 463                                                         && (name = strchr(value, '/')) != NULL)
 464                                                 {
 465                                                         *name++ = '\0';
 466                                                 }
 467                                         }
 468
 469                                         b->a_group_style = sty;
 470                                         if (sty == ACL_STYLE_REGEX) {
 471                                                 bv.bv_val = right;
 472                                                 acl_regex_normalized_dn( &bv );
 473                                                 regtest(fname, lineno, bv.bv_val);
 474                                                 b->a_group_pat = bv;
 475                                         } else {
 476                                                 struct berval *ndn = NULL;
 477                                                 ber_str2bv( right, 0, 0, &bv );
 478                                                 dnNormalize( NULL, &bv, &ndn );
 479                                                 b->a_group_pat = *ndn;
 480                                                 free(ndn);
 481                                         }
 482
 483                                         if (value && *value) {
 484                                                 b->a_group_oc = oc_find( value );
 485                                                 *--value = '/';
 486
 487                                                 if( b->a_group_oc == NULL ) {
 488                                                         fprintf( stderr,
 489                                                                 "%s: line %d: group objectclass "
 490                                                                 "\"%s\" unknown\n",
 491                                                                 fname, lineno, value );
 492                                                         acl_usage();
 493                                                 }
 494                                         } else {
 495                                                 b->a_group_oc = oc_find(SLAPD_GROUP_CLASS);
 496
 497                                                 if( b->a_group_oc == NULL ) {
 498                                                         fprintf( stderr,
 499                                                                 "%s: line %d: group default objectclass "
 500                                                                 "\"%s\" unknown\n",
 501                                                                 fname, lineno, SLAPD_GROUP_CLASS );
 502                                                         acl_usage();
 503                                                 }
 504                                         }
 505
 506                                         if( is_object_subclass( b->a_group_oc,
 507                                                 slap_schema.si_oc_referral ) )
 508                                         {
 509                                                 fprintf( stderr,
 510                                                         "%s: line %d: group objectclass \"%s\" "
 511                                                         "is subclass of referral\n",
 512                                                         fname, lineno, value );
 513                                                 acl_usage();
 514                                         }
 515
 516                                         if( is_object_subclass( b->a_group_oc,
 517                                                 slap_schema.si_oc_alias ) )
 518                                         {
 519                                                 fprintf( stderr,
 520                                                         "%s: line %d: group objectclass \"%s\" "
 521                                                         "is subclass of alias\n",
 522                                                         fname, lineno, value );
 523                                                 acl_usage();
 524                                         }
 525
 526                                         if (name && *name) {
 527                                                 rc = slap_str2ad( name, &b->a_group_at, &text );
 528
 529                                                 if( rc != LDAP_SUCCESS ) {
 530                                                         fprintf( stderr,
 531                                                                 "%s: line %d: group \"%s\": %s\n",
 532                                                                 fname, lineno, right, text );
 533                                                         acl_usage();
 534                                                 }
 535                                                 *--name = '/';
 536                                         } else {
 537                                                 rc = slap_str2ad( SLAPD_GROUP_ATTR, &b->a_group_at, &text );
 538
 539                                                 if( rc != LDAP_SUCCESS ) {
 540                                                         fprintf( stderr,
 541                                                                 "%s: line %d: group \"%s\": %s\n",
 542                                                                 fname, lineno, SLAPD_GROUP_ATTR, text );
 543                                                         acl_usage();
 544                                                 }
 545                                         }
 546
 547                                         if( !is_at_syntax( b->a_group_at->ad_type,
 548                                                 SLAPD_DN_SYNTAX ) &&
 549                                             !is_at_syntax( b->a_group_at->ad_type,
 550                                                 SLAPD_NAMEUID_SYNTAX ) )
 551                                         {
 552                                                 fprintf( stderr,
 553                                                         "%s: line %d: group \"%s\": inappropriate syntax: %s\n",
 554                                                         fname, lineno, right,
 555                                                         b->a_group_at->ad_type->sat_syntax_oid );
 556                                                 acl_usage();
 557                                         }
 558
 559
 560                                         {
 561                                                 int rc;
 562                                                 struct berval val;
 563                                                 struct berval *vals[2];
 564
 565                                                 val.bv_val = b->a_group_oc->soc_oid;
 566                                                 val.bv_len = strlen(val.bv_val);
 567                                                 vals[0] = &val;
 568                                                 vals[1] = NULL;
 569
 570
 571                                                 rc = oc_check_allowed( b->a_group_at->ad_type, vals, NULL );
 572
 573                                                 if( rc != 0 ) {
 574                                                         fprintf( stderr,
 575                                                                 "%s: line %d: group: \"%s\" not allowed by \"%s\"\n",
 576                                                                 fname, lineno,
 577                                                                 b->a_group_at->ad_cname.bv_val,
 578                                                                 b->a_group_oc->soc_oid );
 579                                                         acl_usage();
 580                                                 }
 581                                         }
 582                                         continue;
 583                                 }
 584
 585                                 if ( strcasecmp( left, "peername" ) == 0 ) {
 586                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 587                                                 fprintf( stderr,
 588                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 589                                                         fname, lineno, left );
 590                                                 acl_usage();
 591                                         }
 592
 593                                         if( b->a_peername_pat != NULL ) {
 594                                                 fprintf( stderr,
 595                                                         "%s: line %d: peername pattern already specified.\n",
 596                                                         fname, lineno );
 597                                                 acl_usage();
 598                                         }
 599
 600                                         b->a_peername_style = sty;
 601                                         if (sty == ACL_STYLE_REGEX) {
 602                                                 bv.bv_val = right;
 603                                                 acl_regex_normalized_dn( &bv );
 604                                                 regtest(fname, lineno, bv.bv_val);
 605                                                 b->a_peername_pat = bv.bv_val;
 606                                         } else {
 607                                                 b->a_peername_pat = ch_strdup( right );
 608                                         }
 609                                         continue;
 610                                 }
 611
 612                                 if ( strcasecmp( left, "sockname" ) == 0 ) {
 613                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 614                                                 fprintf( stderr,
 615                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 616                                                         fname, lineno, left );
 617                                                 acl_usage();
 618                                         }
 619
 620                                         if( b->a_sockname_pat != NULL ) {
 621                                                 fprintf( stderr,
 622                                                         "%s: line %d: sockname pattern already specified.\n",
 623                                                         fname, lineno );
 624                                                 acl_usage();
 625                                         }
 626
 627                                         b->a_sockname_style = sty;
 628                                         if (sty == ACL_STYLE_REGEX) {
 629                                                 bv.bv_val = right;
 630                                                 acl_regex_normalized_dn( &bv );
 631                                                 regtest(fname, lineno, bv.bv_val);
 632                                                 b->a_sockname_pat = bv.bv_val;
 633                                         } else {
 634                                                 b->a_sockname_pat = ch_strdup( right );
 635                                         }
 636                                         continue;
 637                                 }
 638
 639                                 if ( strcasecmp( left, "domain" ) == 0 ) {
 640                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 641                                                 fprintf( stderr,
 642                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 643                                                         fname, lineno, left );
 644                                                 acl_usage();
 645                                         }
 646
 647                                         if( b->a_domain_pat != NULL ) {
 648                                                 fprintf( stderr,
 649                                                         "%s: line %d: domain pattern already specified.\n",
 650                                                         fname, lineno );
 651                                                 acl_usage();
 652                                         }
 653
 654                                         b->a_domain_style = sty;
 655                                         if (sty == ACL_STYLE_REGEX) {
 656                                                 bv.bv_val = right;
 657                                                 acl_regex_normalized_dn( &bv );
 658                                                 regtest(fname, lineno, bv.bv_val);
 659                                                 b->a_domain_pat = bv.bv_val;
 660                                         } else {
 661                                                 b->a_domain_pat = ch_strdup( right );
 662                                         }
 663                                         continue;
 664                                 }
 665
 666                                 if ( strcasecmp( left, "sockurl" ) == 0 ) {
 667                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 668                                                 fprintf( stderr,
 669                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 670                                                         fname, lineno, left );
 671                                                 acl_usage();
 672                                         }
 673
 674                                         if( b->a_sockurl_pat != NULL ) {
 675                                                 fprintf( stderr,
 676                                                         "%s: line %d: sockurl pattern already specified.\n",
 677                                                         fname, lineno );
 678                                                 acl_usage();
 679                                         }
 680
 681                                         b->a_sockurl_style = sty;
 682                                         if (sty == ACL_STYLE_REGEX) {
 683                                                 bv.bv_val = right;
 684                                                 acl_regex_normalized_dn( &bv );
 685                                                 regtest(fname, lineno, bv.bv_val);
 686                                                 b->a_sockurl_pat = bv.bv_val;
 687                                         } else {
 688                                                 b->a_sockurl_pat = ch_strdup( right );
 689                                         }
 690                                         continue;
 691                                 }
 692
 693                                 if ( strcasecmp( left, "set" ) == 0 ) {
 694                                         if( b->a_set_pat.bv_len != 0 ) {
 695                                                 fprintf( stderr,
 696                                                         "%s: line %d: set attribute already specified.\n",
 697                                                         fname, lineno );
 698                                                 acl_usage();
 699                                         }
 700
 701                                         if ( right == NULL || *right == '\0' ) {
 702                                                 fprintf( stderr,
 703                                                         "%s: line %d: no set is defined\n",
 704                                                         fname, lineno );
 705                                                 acl_usage();
 706                                         }
 707
 708                                         b->a_set_style = sty;
 709                                         ber_str2bv( right, 0, 1, &b->a_set_pat );
 710
 711                                         continue;
 712                                 }
 713
 714 #ifdef SLAPD_ACI_ENABLED
 715                                 if ( strcasecmp( left, "aci" ) == 0 ) {
 716                                         if( b->a_aci_at != NULL ) {
 717                                                 fprintf( stderr,
 718                                                         "%s: line %d: aci attribute already specified.\n",
 719                                                         fname, lineno );
 720                                                 acl_usage();
 721                                         }
 722
 723                                         if ( right != NULL && *right != '\0' ) {
 724                                                 rc = slap_str2ad( right, &b->a_aci_at, &text );
 725
 726                                                 if( rc != LDAP_SUCCESS ) {
 727                                                         fprintf( stderr,
 728                                                                 "%s: line %d: aci \"%s\": %s\n",
 729                                                                 fname, lineno, right, text );
 730                                                         acl_usage();
 731                                                 }
 732
 733                                         } else {
 734                                                 rc = slap_str2ad( SLAPD_ACI_ATTR, &b->a_aci_at, &text );
 735
 736                                                 if( rc != LDAP_SUCCESS ) {
 737                                                         fprintf( stderr,
 738                                                                 "%s: line %d: aci \"%s\": %s\n",
 739                                                                 fname, lineno, SLAPD_ACI_ATTR, text );
 740                                                         acl_usage();
 741                                                 }
 742                                         }
 743
 744                                         if( !is_at_syntax( b->a_aci_at->ad_type,
 745                                                 SLAPD_ACI_SYNTAX) )
 746                                         {
 747                                                 fprintf( stderr,
 748                                                         "%s: line %d: aci \"%s\": inappropriate syntax: %s\n",
 749                                                         fname, lineno, right,
 750                                                         b->a_aci_at->ad_type->sat_syntax_oid );
 751                                                 acl_usage();
 752                                         }
 753
 754                                         continue;
 755                                 }
 756 #endif /* SLAPD_ACI_ENABLED */
 757
 758                                 if ( strcasecmp( left, "ssf" ) == 0 ) {
 759                                         if( b->a_authz.sai_ssf ) {
 760                                                 fprintf( stderr,
 761                                                         "%s: line %d: ssf attribute already specified.\n",
 762                                                         fname, lineno );
 763                                                 acl_usage();
 764                                         }
 765
 766                                         if ( right == NULL || *right == '\0' ) {
 767                                                 fprintf( stderr,
 768                                                         "%s: line %d: no ssf is defined\n",
 769                                                         fname, lineno );
 770                                                 acl_usage();
 771                                         }
 772
 773                                         b->a_authz.sai_ssf = atoi( right );
 774
 775                                         if( !b->a_authz.sai_ssf ) {
 776                                                 fprintf( stderr,
 777                                                         "%s: line %d: invalid ssf value (%s)\n",
 778                                                         fname, lineno, right );
 779                                                 acl_usage();
 780                                         }
 781                                         continue;
 782                                 }
 783
 784                                 if ( strcasecmp( left, "transport_ssf" ) == 0 ) {
 785                                         if( b->a_authz.sai_transport_ssf ) {
 786                                                 fprintf( stderr,
 787                                                         "%s: line %d: transport_ssf attribute already specified.\n",
 788                                                         fname, lineno );
 789                                                 acl_usage();
 790                                         }
 791
 792                                         if ( right == NULL || *right == '\0' ) {
 793                                                 fprintf( stderr,
 794                                                         "%s: line %d: no transport_ssf is defined\n",
 795                                                         fname, lineno );
 796                                                 acl_usage();
 797                                         }
 798
 799                                         b->a_authz.sai_transport_ssf = atoi( right );
 800
 801                                         if( !b->a_authz.sai_transport_ssf ) {
 802                                                 fprintf( stderr,
 803                                                         "%s: line %d: invalid transport_ssf value (%s)\n",
 804                                                         fname, lineno, right );
 805                                                 acl_usage();
 806                                         }
 807                                         continue;
 808                                 }
 809
 810                                 if ( strcasecmp( left, "tls_ssf" ) == 0 ) {
 811                                         if( b->a_authz.sai_tls_ssf ) {
 812                                                 fprintf( stderr,
 813                                                         "%s: line %d: tls_ssf attribute already specified.\n",
 814                                                         fname, lineno );
 815                                                 acl_usage();
 816                                         }
 817
 818                                         if ( right == NULL || *right == '\0' ) {
 819                                                 fprintf( stderr,
 820                                                         "%s: line %d: no tls_ssf is defined\n",
 821                                                         fname, lineno );
 822                                                 acl_usage();
 823                                         }
 824
 825                                         b->a_authz.sai_tls_ssf = atoi( right );
 826
 827                                         if( !b->a_authz.sai_tls_ssf ) {
 828                                                 fprintf( stderr,
 829                                                         "%s: line %d: invalid tls_ssf value (%s)\n",
 830                                                         fname, lineno, right );
 831                                                 acl_usage();
 832                                         }
 833                                         continue;
 834                                 }
 835
 836                                 if ( strcasecmp( left, "sasl_ssf" ) == 0 ) {
 837                                         if( b->a_authz.sai_sasl_ssf ) {
 838                                                 fprintf( stderr,
 839                                                         "%s: line %d: sasl_ssf attribute already specified.\n",
 840                                                         fname, lineno );
 841                                                 acl_usage();
 842                                         }
 843
 844                                         if ( right == NULL || *right == '\0' ) {
 845                                                 fprintf( stderr,
 846                                                         "%s: line %d: no sasl_ssf is defined\n",
 847                                                         fname, lineno );
 848                                                 acl_usage();
 849                                         }
 850
 851                                         b->a_authz.sai_sasl_ssf = atoi( right );
 852
 853                                         if( !b->a_authz.sai_sasl_ssf ) {
 854                                                 fprintf( stderr,
 855                                                         "%s: line %d: invalid sasl_ssf value (%s)\n",
 856                                                         fname, lineno, right );
 857                                                 acl_usage();
 858                                         }
 859                                         continue;
 860                                 }
 861
 862                                 if( right != NULL ) {
 863                                         /* unsplit */
 864                                         right[-1] = '=';
 865                                 }
 866                                 break;
 867                         }
 868
 869                         if( i == argc || ( strcasecmp( left, "stop" ) == 0 )) {
 870                                 /* out of arguments or plain stop */
 871
 872                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
 873                                 b->a_type = ACL_STOP;
 874
 875                                 access_append( &a->acl_access, b );
 876                                 continue;
 877                         }
 878
 879                         if( strcasecmp( left, "continue" ) == 0 ) {
 880                                 /* plain continue */
 881
 882                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
 883                                 b->a_type = ACL_CONTINUE;
 884
 885                                 access_append( &a->acl_access, b );
 886                                 continue;
 887                         }
 888
 889                         if( strcasecmp( left, "break" ) == 0 ) {
 890                                 /* plain continue */
 891
 892                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
 893                                 b->a_type = ACL_BREAK;
 894
 895                                 access_append( &a->acl_access, b );
 896                                 continue;
 897                         }
 898
 899                         if ( strcasecmp( left, "by" ) == 0 ) {
 900                                 /* we've gone too far */
 901                                 --i;
 902                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
 903                                 b->a_type = ACL_STOP;
 904
 905                                 access_append( &a->acl_access, b );
 906                                 continue;
 907                         }
 908
 909                         /* get <access> */
 910                         if( strncasecmp( left, "self", 4 ) == 0 ) {
 911                                 b->a_dn_self = 1;
 912                                 ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( &left[4] ) );
 913
 914                         } else {
 915                                 ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( left ) );
 916                         }
 917
 918                         if( ACL_IS_INVALID( b->a_access_mask ) ) {
 919                                 fprintf( stderr,
 920                                         "%s: line %d: expecting <access> got \"%s\"\n",
 921                                         fname, lineno, left );
 922                                 acl_usage();
 923                         }
 924
 925                         b->a_type = ACL_STOP;
 926
 927                         if( ++i == argc ) {
 928                                 /* out of arguments or plain stop */
 929                                 access_append( &a->acl_access, b );
 930                                 continue;
 931                         }
 932
 933                         if( strcasecmp( argv[i], "continue" ) == 0 ) {
 934                                 /* plain continue */
 935                                 b->a_type = ACL_CONTINUE;
 936
 937                         } else if( strcasecmp( argv[i], "break" ) == 0 ) {
 938                                 /* plain continue */
 939                                 b->a_type = ACL_BREAK;
 940
 941                         } else if ( strcasecmp( argv[i], "stop" ) != 0 ) {
 942                                 /* gone to far */
 943                                 i--;
 944                         }
 945
 946                         access_append( &a->acl_access, b );
 947
 948                 } else {
 949                         fprintf( stderr,
 950                     "%s: line %d: expecting \"to\" or \"by\" got \"%s\"\n",
 951                             fname, lineno, argv[i] );
 952                         acl_usage();
 953                 }
 954         }
 955
 956         /* if we have no real access clause, complain and do nothing */
 957         if ( a == NULL ) {
 958                         fprintf( stderr,
 959                                 "%s: line %d: warning: no access clause(s) specified in access line\n",
 960                             fname, lineno );
 961
 962         } else {
 963 #ifdef LDAP_DEBUG
 964                 if (ldap_debug & LDAP_DEBUG_ACL)
 965                         print_acl(be, a);
 966 #endif
 967
 968                 if ( a->acl_access == NULL ) {
 969                         fprintf( stderr,
 970                         "%s: line %d: warning: no by clause(s) specified in access line\n",
 971                             fname, lineno );
 972                 }
 973
 974                 if ( be != NULL ) {
 975                         acl_append( &be->be_acl, a );
 976                 } else {
 977                         acl_append( &global_acl, a );
 978                 }
 979         }
 980 }
 981
 982 char *
 983 accessmask2str( slap_mask_t mask, char *buf )
 984 {
 985         int none=1;
 986         char *ptr = buf;
 987
 988         assert( buf != NULL );
 989
 990         if ( ACL_IS_INVALID( mask ) ) {
 991                 return "invalid";
 992         }
 993
 994         buf[0] = '\0';
 995
 996         if ( ACL_IS_LEVEL( mask ) ) {
 997                 if ( ACL_LVL_IS_NONE(mask) ) {
 998                         ptr = slap_strcopy( ptr, "none" );
 999
1000                 } else if ( ACL_LVL_IS_AUTH(mask) ) {
1001                         ptr = slap_strcopy( ptr, "auth" );
1002
1003                 } else if ( ACL_LVL_IS_COMPARE(mask) ) {
1004                         ptr = slap_strcopy( ptr, "compare" );
1005
1006                 } else if ( ACL_LVL_IS_SEARCH(mask) ) {
1007                         ptr = slap_strcopy( ptr, "search" );
1008
1009                 } else if ( ACL_LVL_IS_READ(mask) ) {
1010                         ptr = slap_strcopy( ptr, "read" );
1011
1012                 } else if ( ACL_LVL_IS_WRITE(mask) ) {
1013                         ptr = slap_strcopy( ptr, "write" );
1014                 } else {
1015                         ptr = slap_strcopy( ptr, "unknown" );
1016                 }
1017
1018                 *ptr++ = '(';
1019         }
1020
1021         if( ACL_IS_ADDITIVE( mask ) ) {
1022                 *ptr++ = '+';
1023
1024         } else if( ACL_IS_SUBTRACTIVE( mask ) ) {
1025                 *ptr++ = '-';
1026
1027         } else {
1028                 *ptr++ = '=';
1029         }
1030
1031         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_WRITE) ) {
1032                 none = 0;
1033                 *ptr++ = 'w';
1034         }
1035
1036         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_READ) ) {
1037                 none = 0;
1038                 *ptr++ = 'r';
1039         }
1040
1041         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_SEARCH) ) {
1042                 none = 0;
1043                 *ptr++ = 's';
1044         }
1045
1046         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_COMPARE) ) {
1047                 none = 0;
1048                 *ptr++ = 'c';
1049         }
1050
1051         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_AUTH) ) {
1052                 none = 0;
1053                 *ptr++ = 'x';
1054         }
1055
1056         if ( none && ACL_PRIV_ISSET(mask, ACL_PRIV_NONE) ) {
1057                 none = 0;
1058                 *ptr++ = 'n';
1059         }
1060
1061         if ( none ) {
1062                 *ptr++ = '0';
1063         }
1064
1065         if ( ACL_IS_LEVEL( mask ) ) {
1066                 *ptr = ')';
1067         }
1068         return buf;
1069 }
1070
1071 slap_mask_t
1072 str2accessmask( const char *str )
1073 {
1074         slap_mask_t     mask;
1075
1076         if( !ASCII_ALPHA(str[0]) ) {
1077                 int i;
1078
1079                 if ( str[0] == '=' ) {
1080                         ACL_INIT(mask);
1081
1082                 } else if( str[0] == '+' ) {
1083                         ACL_PRIV_ASSIGN(mask, ACL_PRIV_ADDITIVE);
1084
1085                 } else if( str[0] == '-' ) {
1086                         ACL_PRIV_ASSIGN(mask, ACL_PRIV_SUBSTRACTIVE);
1087
1088                 } else {
1089                         ACL_INVALIDATE(mask);
1090                         return mask;
1091                 }
1092
1093                 for( i=1; str[i] != '\0'; i++ ) {
1094                         if( TOLOWER(str[i]) == 'w' ) {
1095                                 ACL_PRIV_SET(mask, ACL_PRIV_WRITE);
1096
1097                         } else if( TOLOWER(str[i]) == 'r' ) {
1098                                 ACL_PRIV_SET(mask, ACL_PRIV_READ);
1099
1100                         } else if( TOLOWER(str[i]) == 's' ) {
1101                                 ACL_PRIV_SET(mask, ACL_PRIV_SEARCH);
1102
1103                         } else if( TOLOWER(str[i]) == 'c' ) {
1104                                 ACL_PRIV_SET(mask, ACL_PRIV_COMPARE);
1105
1106                         } else if( TOLOWER(str[i]) == 'x' ) {
1107                                 ACL_PRIV_SET(mask, ACL_PRIV_AUTH);
1108
1109                         } else if( str[i] != '0' ) {
1110                                 ACL_INVALIDATE(mask);
1111                                 return mask;
1112                         }
1113                 }
1114
1115                 return mask;
1116         }
1117
1118         if ( strcasecmp( str, "none" ) == 0 ) {
1119                 ACL_LVL_ASSIGN_NONE(mask);
1120
1121         } else if ( strcasecmp( str, "auth" ) == 0 ) {
1122                 ACL_LVL_ASSIGN_AUTH(mask);
1123
1124         } else if ( strcasecmp( str, "compare" ) == 0 ) {
1125                 ACL_LVL_ASSIGN_COMPARE(mask);
1126
1127         } else if ( strcasecmp( str, "search" ) == 0 ) {
1128                 ACL_LVL_ASSIGN_SEARCH(mask);
1129
1130         } else if ( strcasecmp( str, "read" ) == 0 ) {
1131                 ACL_LVL_ASSIGN_READ(mask);
1132
1133         } else if ( strcasecmp( str, "write" ) == 0 ) {
1134                 ACL_LVL_ASSIGN_WRITE(mask);
1135
1136         } else {
1137                 ACL_INVALIDATE( mask );
1138         }
1139
1140         return mask;
1141 }
1142
1143 static void
1144 acl_usage( void )
1145 {
1146         fprintf( stderr, "\n"
1147                 "<access clause> ::= access to <what> "
1148                                 "[ by <who> <access> [ <control> ] ]+ \n"
1149                 "<what> ::= * | [dn[.<dnstyle>]=<regex>] [filter=<ldapfilter>] [attrs=<attrlist>]\n"
1150                 "<attrlist> ::= <attr> | <attr> , <attrlist>\n"
1151                 "<attr> ::= <attrname> | entry | children\n"
1152                 "<who> ::= [ * | anonymous | users | self | dn[.<dnstyle>]=<regex> ]\n"
1153                         "\t[dnattr=<attrname>]\n"
1154                         "\t[group[/<objectclass>[/<attrname>]][.<style>]=<regex>]\n"
1155                         "\t[peername[.<style>]=<regex>] [sockname[.<style>]=<regex>]\n"
1156                         "\t[domain[.<style>]=<regex>] [sockurl[.<style>]=<regex>]\n"
1157 #ifdef SLAPD_ACI_ENABLED
1158                         "\t[aci=<attrname>]\n"
1159 #endif
1160                         "\t[ssf=<n>] [transport_ssf=<n>] [tls_ssf=<n>] [sasl_ssf=<n>]\n"
1161                 "<dnstyle> ::= regex | base | exact (alias of base) | one | sub | children\n"
1162                 "<style> ::= regex | base | exact (alias of base)\n"
1163                 "<groupflags> ::= R\n"
1164                 "<access> ::= [self]{<level>|<priv>}\n"
1165                 "<level> ::= none | auth | compare | search | read | write\n"
1166                 "<priv> ::= {=|+|-}{w|r|s|c|x}+\n"
1167                 "<control> ::= [ stop | continue | break ]\n"
1168                 );
1169         exit( EXIT_FAILURE );
1170 }
1171
1172 /*
1173  * At present it simply eats the (optional) space after
1174  * a RDN separator (,)
1175  * Eventually will evolve in a more complete normalization
1176  *
1177  * Note that the input berval only needs bv_val, it ignores
1178  * the input bv_len and sets it on return.
1179  */
1180 static void
1181 acl_regex_normalized_dn(
1182         struct berval *pattern
1183 )
1184 {
1185         char *str, *p;
1186
1187         str = ch_strdup( pattern->bv_val );
1188
1189         for ( p = str; p && p[ 0 ]; p++ ) {
1190                 /* escape */
1191                 if ( p[ 0 ] == '\\' ) {
1192                         p++;
1193                 }
1194
1195                 if ( p[ 0 ] == ',' ) {
1196                         if ( p[ 1 ] == ' ' ) {
1197                                 char *q;
1198
1199                                 for ( q = &p[ 2 ]; q[ 0 ] == ' '; q++ ) {
1200                                         /* DO NOTHING */ ;
1201                                 }
1202                                 AC_MEMCPY( p+1, q, pattern->bv_len-(q-str)+1);
1203                         }
1204                 }
1205         }
1206         pattern->bv_val = str;
1207         pattern->bv_len = p-str;
1208
1209         return;
1210 }
1211
1212 static void
1213 split(
1214     char        *line,
1215     int         splitchar,
1216     char        **left,
1217     char        **right
1218 )
1219 {
1220         *left = line;
1221         if ( (*right = strchr( line, splitchar )) != NULL ) {
1222                 *((*right)++) = '\0';
1223         }
1224 }
1225
1226 static void
1227 access_append( Access **l, Access *a )
1228 {
1229         for ( ; *l != NULL; l = &(*l)->a_next )
1230                 ;       /* NULL */
1231
1232         *l = a;
1233 }
1234
1235 void
1236 acl_append( AccessControl **l, AccessControl *a )
1237 {
1238         for ( ; *l != NULL; l = &(*l)->acl_next )
1239                 ;       /* NULL */
1240
1241         *l = a;
1242 }
1243
1244 static void
1245 access_free( Access *a )
1246 {
1247         if ( a->a_dn_pat.bv_val )
1248                 free ( a->a_dn_pat.bv_val );
1249         if ( a->a_peername_pat )
1250                 free ( a->a_peername_pat );
1251         if ( a->a_sockname_pat )
1252                 free ( a->a_sockname_pat );
1253         if ( a->a_domain_pat )
1254                 free ( a->a_domain_pat );
1255         if ( a->a_sockurl_pat )
1256                 free ( a->a_sockurl_pat );
1257         if ( a->a_set_pat.bv_len )
1258                 free ( a->a_set_pat.bv_val );
1259         if ( a->a_group_pat.bv_len )
1260                 free ( a->a_group_pat.bv_val );
1261         free( a );
1262 }
1263
1264 void
1265 acl_free( AccessControl *a )
1266 {
1267         Access *n;
1268
1269         if ( a->acl_filter )
1270                 filter_free( a->acl_filter );
1271         if ( a->acl_dn_pat.bv_len )
1272                 free ( a->acl_dn_pat.bv_val );
1273         if ( a->acl_attrs )
1274                 ber_bvecfree( a->acl_attrs );
1275         for (; a->acl_access; a->acl_access = n) {
1276                 n = a->acl_access->a_next;
1277                 access_free( a->acl_access );
1278         }
1279         free( a );
1280 }
1281
1282 /* Because backend_startup uses acl_append to tack on the global_acl to
1283  * the end of each backend's acl, we cannot just take one argument and
1284  * merrily free our way to the end of the list. backend_destroy calls us
1285  * with the be_acl in arg1, and global_acl in arg2 to give us a stopping
1286  * point. config_destroy calls us with global_acl in arg1 and NULL in
1287  * arg2, so we then proceed to polish off the global_acl.
1288  */
1289 void
1290 acl_destroy( AccessControl *a, AccessControl *end )
1291 {
1292         AccessControl *n;
1293
1294         for (; a && a!= end; a=n) {
1295                 n = a->acl_next;
1296                 acl_free( a );
1297         }
1298 }
1299
1300 char *
1301 access2str( slap_access_t access )
1302 {
1303         if ( access == ACL_NONE ) {
1304                 return "none";
1305
1306         } else if ( access == ACL_AUTH ) {
1307                 return "auth";
1308
1309         } else if ( access == ACL_COMPARE ) {
1310                 return "compare";
1311
1312         } else if ( access == ACL_SEARCH ) {
1313                 return "search";
1314
1315         } else if ( access == ACL_READ ) {
1316                 return "read";
1317
1318         } else if ( access == ACL_WRITE ) {
1319                 return "write";
1320         }
1321
1322         return "unknown";
1323 }
1324
1325 slap_access_t
1326 str2access( const char *str )
1327 {
1328         if ( strcasecmp( str, "none" ) == 0 ) {
1329                 return ACL_NONE;
1330
1331         } else if ( strcasecmp( str, "auth" ) == 0 ) {
1332                 return ACL_AUTH;
1333
1334         } else if ( strcasecmp( str, "compare" ) == 0 ) {
1335                 return ACL_COMPARE;
1336
1337         } else if ( strcasecmp( str, "search" ) == 0 ) {
1338                 return ACL_SEARCH;
1339
1340         } else if ( strcasecmp( str, "read" ) == 0 ) {
1341                 return ACL_READ;
1342
1343         } else if ( strcasecmp( str, "write" ) == 0 ) {
1344                 return ACL_WRITE;
1345         }
1346
1347         return( ACL_INVALID_ACCESS );
1348 }
1349
1350 #ifdef LDAP_DEBUG
1351
1352 static char *style_strings[5] = {
1353                         "regex",
1354                         "base",
1355                         "one",
1356                         "subtree",
1357                         "children"
1358                 };
1359
1360
1361 static void
1362 print_access( Access *b )
1363 {
1364         char maskbuf[ACCESSMASK_MAXLEN];
1365
1366         fprintf( stderr, "\tby" );
1367
1368         if ( b->a_dn_pat.bv_len != 0 ) {
1369                 if( strcmp(b->a_dn_pat.bv_val, "*") == 0
1370                         || strcmp(b->a_dn_pat.bv_val, "users") == 0
1371                         || strcmp(b->a_dn_pat.bv_val, "anonymous") == 0
1372                         || strcmp(b->a_dn_pat.bv_val, "self") == 0 )
1373                 {
1374                         fprintf( stderr, " %s", b->a_dn_pat.bv_val );
1375
1376                 } else {
1377                         fprintf( stderr, " dn.%s=%s", style_strings[b->a_dn_style], b->a_dn_pat.bv_val );
1378                 }
1379         }
1380
1381         if ( b->a_dn_at != NULL ) {
1382                 fprintf( stderr, " dnattr=%s", b->a_dn_at->ad_cname.bv_val );
1383         }
1384
1385         if ( b->a_group_pat.bv_len ) {
1386                 fprintf( stderr, " group=%s", b->a_group_pat.bv_val );
1387
1388                 if ( b->a_group_oc ) {
1389                         fprintf( stderr, " objectClass: %s",
1390                                 b->a_group_oc->soc_oclass.oc_oid );
1391
1392                         if ( b->a_group_at ) {
1393                                 fprintf( stderr, " attributeType: %s", b->a_group_at->ad_cname.bv_val );
1394                         }
1395                 }
1396     }
1397
1398         if ( b->a_peername_pat != NULL ) {
1399                 fprintf( stderr, " peername=%s", b->a_peername_pat );
1400         }
1401
1402         if ( b->a_sockname_pat != NULL ) {
1403                 fprintf( stderr, " sockname=%s", b->a_sockname_pat );
1404         }
1405
1406         if ( b->a_domain_pat != NULL ) {
1407                 fprintf( stderr, " domain=%s", b->a_domain_pat );
1408         }
1409
1410         if ( b->a_sockurl_pat != NULL ) {
1411                 fprintf( stderr, " sockurl=%s", b->a_sockurl_pat );
1412         }
1413
1414 #ifdef SLAPD_ACI_ENABLED
1415         if ( b->a_aci_at != NULL ) {
1416                 fprintf( stderr, " aci=%s", b->a_aci_at->ad_cname.bv_val );
1417         }
1418 #endif
1419
1420         /* Security Strength Factors */
1421         if ( b->a_authz.sai_ssf ) {
1422                 fprintf( stderr, " ssf=%u",
1423                         b->a_authz.sai_ssf );
1424         }
1425         if ( b->a_authz.sai_transport_ssf ) {
1426                 fprintf( stderr, " transport_ssf=%u",
1427                         b->a_authz.sai_transport_ssf );
1428         }
1429         if ( b->a_authz.sai_tls_ssf ) {
1430                 fprintf( stderr, " tls_ssf=%u",
1431                         b->a_authz.sai_tls_ssf );
1432         }
1433         if ( b->a_authz.sai_sasl_ssf ) {
1434                 fprintf( stderr, " sasl_ssf=%u",
1435                         b->a_authz.sai_sasl_ssf );
1436         }
1437
1438         fprintf( stderr, " %s%s",
1439                 b->a_dn_self ? "self" : "",
1440                 accessmask2str( b->a_access_mask, maskbuf ) );
1441
1442         if( b->a_type == ACL_BREAK ) {
1443                 fprintf( stderr, " break" );
1444
1445         } else if( b->a_type == ACL_CONTINUE ) {
1446                 fprintf( stderr, " continue" );
1447
1448         } else if( b->a_type != ACL_STOP ) {
1449                 fprintf( stderr, " unknown-control" );
1450         }
1451
1452         fprintf( stderr, "\n" );
1453 }
1454
1455
1456 static void
1457 print_acl( Backend *be, AccessControl *a )
1458 {
1459         int             to = 0;
1460         Access  *b;
1461
1462         fprintf( stderr, "%s ACL: access to",
1463                 be == NULL ? "Global" : "Backend" );
1464
1465         if ( a->acl_dn_pat.bv_len != 0 ) {
1466                 to++;
1467                 fprintf( stderr, " dn.%s=%s\n",
1468                         style_strings[a->acl_dn_style], a->acl_dn_pat.bv_val );
1469         }
1470
1471         if ( a->acl_filter != NULL ) {
1472                 to++;
1473                 fprintf( stderr, " filter=" );
1474                 filter_print( a->acl_filter );
1475                 fprintf( stderr, "\n" );
1476         }
1477
1478         if ( a->acl_attrs != NULL ) {
1479                 int     i, first = 1;
1480                 to++;
1481
1482                 fprintf( stderr, " attrs=" );
1483                 for ( i = 0; a->acl_attrs[i] != NULL; i++ ) {
1484                         if ( ! first ) {
1485                                 fprintf( stderr, "," );
1486                         }
1487                         fputs( a->acl_attrs[i]->bv_val, stderr );
1488                         first = 0;
1489                 }
1490                 fprintf(  stderr, "\n" );
1491         }
1492
1493         if( !to ) {
1494                 fprintf( stderr, " *\n" );
1495         }
1496
1497         for ( b = a->acl_access; b != NULL; b = b->a_next ) {
1498                 print_access( b );
1499         }
1500
1501         fprintf( stderr, "\n" );
1502 }
1503
1504 #endif /* LDAP_DEBUG */