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;
 225                                         dnNormalize2( NULL, &a->acl_dn_pat, &bv);
 226                                         free( a->acl_dn_pat.bv_val );
 227                                         a->acl_dn_pat = bv;
 228                                 } else {
 229                                         int e = regcomp( &a->acl_dn_re, a->acl_dn_pat.bv_val,
 230                                                          REG_EXTENDED | REG_ICASE );
 231                                         if ( e ) {
 232                                                 char buf[512];
 233                                                 regerror( e, &a->acl_dn_re, buf, sizeof(buf) );
 234                                                 fprintf( stderr,
 235                                         "%s: line %d: regular expression \"%s\" bad because of %s\n",
 236                                                          fname, lineno, right, buf );
 237                                                 acl_usage();
 238                                         }
 239                                 }
 240                         }
 241
 242                 /* by clause - select who has what access to entries */
 243                 } else if ( strcasecmp( argv[i], "by" ) == 0 ) {
 244                         if ( a == NULL ) {
 245                                 fprintf( stderr,
 246                                         "%s: line %d: to clause required before by clause in access line\n",
 247                                     fname, lineno );
 248                                 acl_usage();
 249                         }
 250
 251                         /*
 252                          * by clause consists of <who> and <access>
 253                          */
 254
 255                         b = (Access *) ch_calloc( 1, sizeof(Access) );
 256
 257                         ACL_INVALIDATE( b->a_access_mask );
 258
 259                         if ( ++i == argc ) {
 260                                 fprintf( stderr,
 261                             "%s: line %d: premature eol: expecting <who>\n",
 262                                     fname, lineno );
 263                                 acl_usage();
 264                         }
 265
 266                         /* get <who> */
 267                         for ( ; i < argc; i++ ) {
 268                                 slap_style_t sty = ACL_STYLE_REGEX;
 269
 270                                 split( argv[i], '=', &left, &right );
 271                                 split( left, '.', &left, &style );
 272                                 if ( style == NULL || *style == '\0'
 273                                         || strcasecmp( style, "regex" ) == 0 )
 274                                 {
 275                                         sty = ACL_STYLE_REGEX;
 276                                 } else if ( strcasecmp( style, "exact" ) == 0 ) {
 277                                         sty = ACL_STYLE_EXACT;
 278                                 } else if ( strcasecmp( style, "base" ) == 0 ) {
 279                                         sty = ACL_STYLE_BASE;
 280                                 } else if ( strcasecmp( style, "one" ) == 0 ) {
 281                                         sty = ACL_STYLE_ONE;
 282                                 } else if ( strcasecmp( style, "subtree" ) == 0 ) {
 283                                         sty = ACL_STYLE_SUBTREE;
 284                                 } else if ( strcasecmp( style, "children" ) == 0 ) {
 285                                         sty = ACL_STYLE_CHILDREN;
 286                                 } else {
 287                                         fprintf( stderr,
 288                                                 "%s: line %d: unknown style \"%s\" in by clause\n",
 289                                             fname, lineno, style );
 290                                         acl_usage();
 291                                 }
 292
 293                                 if ( strcasecmp( argv[i], "*" ) == 0 ) {
 294                                         bv.bv_val = ch_strdup( "*" );
 295                                         bv.bv_len = 1;
 296
 297                                 } else if ( strcasecmp( argv[i], "anonymous" ) == 0 ) {
 298                                         ber_str2bv("anonymous",
 299                                                 sizeof("anonymous")-1,
 300                                                 1, &bv);
 301
 302                                 } else if ( strcasecmp( argv[i], "self" ) == 0 ) {
 303                                         ber_str2bv("self",
 304                                                 sizeof("self")-1,
 305                                                 1, &bv);
 306
 307                                 } else if ( strcasecmp( argv[i], "users" ) == 0 ) {
 308                                         ber_str2bv("users",
 309                                                 sizeof("users")-1,
 310                                                 1, &bv);
 311
 312                                 } else if ( strcasecmp( left, "dn" ) == 0 ) {
 313                                         if ( sty == ACL_STYLE_REGEX ) {
 314                                                 b->a_dn_style = ACL_STYLE_REGEX;
 315                                                 if( right == NULL ) {
 316                                                         /* no '=' */
 317                                                         ber_str2bv("users",
 318                                                                 sizeof("users")-1,
 319                                                                 1, &bv);
 320                                                 } else if (*right == '\0' ) {
 321                                                         /* dn="" */
 322                                                         ber_str2bv("anonymous",
 323                                                                 sizeof("anonymous")-1,
 324                                                                 1, &bv);
 325                                                 } else if ( strcmp( right, "*" ) == 0 ) {
 326                                                         /* dn=* */
 327                                                         /* any or users?  users for now */
 328                                                         ber_str2bv("users",
 329                                                                 sizeof("users")-1,
 330                                                                 1, &bv);
 331                                                 } else if ( strcmp( right, ".+" ) == 0
 332                                                         || strcmp( right, "^.+" ) == 0
 333                                                         || strcmp( right, ".+$" ) == 0
 334                                                         || strcmp( right, "^.+$" ) == 0
 335                                                         || strcmp( right, ".+$$" ) == 0
 336                                                         || strcmp( right, "^.+$$" ) == 0 )
 337                                                 {
 338                                                         ber_str2bv("users",
 339                                                                 sizeof("users")-1,
 340                                                                 1, &bv);
 341                                                 } else if ( strcmp( right, ".*" ) == 0
 342                                                         || strcmp( right, "^.*" ) == 0
 343                                                         || strcmp( right, ".*$" ) == 0
 344                                                         || strcmp( right, "^.*$" ) == 0
 345                                                         || strcmp( right, ".*$$" ) == 0
 346                                                         || strcmp( right, "^.*$$" ) == 0 )
 347                                                 {
 348                                                         ber_str2bv("*",
 349                                                                 sizeof("*")-1,
 350                                                                 1, &bv);
 351
 352                                                 } else {
 353                                                         bv.bv_val = right;
 354                                                         acl_regex_normalized_dn( &bv );
 355                                                         regtest(fname, lineno, bv.bv_val);
 356                                                 }
 357                                         } else if ( right == NULL || *right == '\0' ) {
 358                                                 fprintf( stderr,
 359                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 360                                                     fname, lineno, left );
 361                                                 acl_usage();
 362
 363                                         } else {
 364                                                 ber_str2bv( right, 0, 1, &bv );
 365                                         }
 366
 367                                 } else {
 368                                         bv.bv_val = NULL;
 369                                 }
 370
 371                                 if( bv.bv_val != NULL ) {
 372                                         if( b->a_dn_pat.bv_len != 0 ) {
 373                                                 fprintf( stderr,
 374                                                     "%s: line %d: dn pattern already specified.\n",
 375                                                     fname, lineno );
 376                                                 acl_usage();
 377                                         }
 378
 379                                         if ( sty != ACL_STYLE_REGEX ) {
 380                                                 dnNormalize2(NULL, &bv, &b->a_dn_pat);
 381                                                 free(bv.bv_val);
 382                                         } else {
 383                                                 b->a_dn_pat = bv;
 384                                         }
 385                                         b->a_dn_style = sty;
 386                                         continue;
 387                                 }
 388
 389                                 if ( strcasecmp( left, "dnattr" ) == 0 ) {
 390                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 391                                                 fprintf( stderr,
 392                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 393                                                         fname, lineno, left );
 394                                                 acl_usage();
 395                                         }
 396
 397                                         if( b->a_dn_at != NULL ) {
 398                                                 fprintf( stderr,
 399                                                         "%s: line %d: dnattr already specified.\n",
 400                                                         fname, lineno );
 401                                                 acl_usage();
 402                                         }
 403
 404                                         rc = slap_str2ad( right, &b->a_dn_at, &text );
 405
 406                                         if( rc != LDAP_SUCCESS ) {
 407                                                 fprintf( stderr,
 408                                                         "%s: line %d: dnattr \"%s\": %s\n",
 409                                                         fname, lineno, right, text );
 410                                                 acl_usage();
 411                                         }
 412
 413
 414                                         if( !is_at_syntax( b->a_dn_at->ad_type,
 415                                                 SLAPD_DN_SYNTAX ) &&
 416                                                 !is_at_syntax( b->a_dn_at->ad_type,
 417                                                 SLAPD_NAMEUID_SYNTAX ))
 418                                         {
 419                                                 fprintf( stderr,
 420                                                         "%s: line %d: dnattr \"%s\": "
 421                                                         "inappropriate syntax: %s\n",
 422                                                         fname, lineno, right,
 423                                                         b->a_dn_at->ad_type->sat_syntax_oid );
 424                                                 acl_usage();
 425                                         }
 426
 427                                         continue;
 428                                 }
 429
 430                                 if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 431                                         fprintf( stderr,
 432                                                 "%s: line %d: inappropriate style \"%s\" in by clause\n",
 433                                             fname, lineno, style );
 434                                         acl_usage();
 435                                 }
 436
 437                                 if ( strncasecmp( left, "group", sizeof("group")-1 ) == 0 ) {
 438                                         char *name = NULL;
 439                                         char *value = NULL;
 440
 441                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 442                                                 fprintf( stderr,
 443                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 444                                                         fname, lineno, left );
 445                                                 acl_usage();
 446                                         }
 447
 448                                         if( b->a_group_pat.bv_len ) {
 449                                                 fprintf( stderr,
 450                                                         "%s: line %d: group pattern already specified.\n",
 451                                                         fname, lineno );
 452                                                 acl_usage();
 453                                         }
 454
 455                                         /* format of string is "group/objectClassValue/groupAttrName" */
 456                                         if ((value = strchr(left, '/')) != NULL) {
 457                                                 *value++ = '\0';
 458                                                 if (*value
 459                                                         && (name = strchr(value, '/')) != NULL)
 460                                                 {
 461                                                         *name++ = '\0';
 462                                                 }
 463                                         }
 464
 465                                         b->a_group_style = sty;
 466                                         if (sty == ACL_STYLE_REGEX) {
 467                                                 bv.bv_val = right;
 468                                                 acl_regex_normalized_dn( &bv );
 469                                                 regtest(fname, lineno, bv.bv_val);
 470                                                 b->a_group_pat = bv;
 471                                         } else {
 472                                                 ber_str2bv( right, 0, 0, &bv );
 473                                                 dnNormalize2( NULL, &bv, &b->a_group_pat );
 474                                         }
 475
 476                                         if (value && *value) {
 477                                                 b->a_group_oc = oc_find( value );
 478                                                 *--value = '/';
 479
 480                                                 if( b->a_group_oc == NULL ) {
 481                                                         fprintf( stderr,
 482                                                                 "%s: line %d: group objectclass "
 483                                                                 "\"%s\" unknown\n",
 484                                                                 fname, lineno, value );
 485                                                         acl_usage();
 486                                                 }
 487                                         } else {
 488                                                 b->a_group_oc = oc_find(SLAPD_GROUP_CLASS);
 489
 490                                                 if( b->a_group_oc == NULL ) {
 491                                                         fprintf( stderr,
 492                                                                 "%s: line %d: group default objectclass "
 493                                                                 "\"%s\" unknown\n",
 494                                                                 fname, lineno, SLAPD_GROUP_CLASS );
 495                                                         acl_usage();
 496                                                 }
 497                                         }
 498
 499                                         if( is_object_subclass( b->a_group_oc,
 500                                                 slap_schema.si_oc_referral ) )
 501                                         {
 502                                                 fprintf( stderr,
 503                                                         "%s: line %d: group objectclass \"%s\" "
 504                                                         "is subclass of referral\n",
 505                                                         fname, lineno, value );
 506                                                 acl_usage();
 507                                         }
 508
 509                                         if( is_object_subclass( b->a_group_oc,
 510                                                 slap_schema.si_oc_alias ) )
 511                                         {
 512                                                 fprintf( stderr,
 513                                                         "%s: line %d: group objectclass \"%s\" "
 514                                                         "is subclass of alias\n",
 515                                                         fname, lineno, value );
 516                                                 acl_usage();
 517                                         }
 518
 519                                         if (name && *name) {
 520                                                 rc = slap_str2ad( name, &b->a_group_at, &text );
 521
 522                                                 if( rc != LDAP_SUCCESS ) {
 523                                                         fprintf( stderr,
 524                                                                 "%s: line %d: group \"%s\": %s\n",
 525                                                                 fname, lineno, right, text );
 526                                                         acl_usage();
 527                                                 }
 528                                                 *--name = '/';
 529                                         } else {
 530                                                 rc = slap_str2ad( SLAPD_GROUP_ATTR, &b->a_group_at, &text );
 531
 532                                                 if( rc != LDAP_SUCCESS ) {
 533                                                         fprintf( stderr,
 534                                                                 "%s: line %d: group \"%s\": %s\n",
 535                                                                 fname, lineno, SLAPD_GROUP_ATTR, text );
 536                                                         acl_usage();
 537                                                 }
 538                                         }
 539
 540                                         if( !is_at_syntax( b->a_group_at->ad_type,
 541                                                 SLAPD_DN_SYNTAX ) &&
 542                                             !is_at_syntax( b->a_group_at->ad_type,
 543                                                 SLAPD_NAMEUID_SYNTAX ) )
 544                                         {
 545                                                 fprintf( stderr,
 546                                                         "%s: line %d: group \"%s\": inappropriate syntax: %s\n",
 547                                                         fname, lineno, right,
 548                                                         b->a_group_at->ad_type->sat_syntax_oid );
 549                                                 acl_usage();
 550                                         }
 551
 552
 553                                         {
 554                                                 int rc;
 555                                                 struct berval val;
 556                                                 struct berval *vals[2];
 557
 558                                                 val.bv_val = b->a_group_oc->soc_oid;
 559                                                 val.bv_len = strlen(val.bv_val);
 560                                                 vals[0] = &val;
 561                                                 vals[1] = NULL;
 562
 563
 564                                                 rc = oc_check_allowed( b->a_group_at->ad_type, vals, NULL );
 565
 566                                                 if( rc != 0 ) {
 567                                                         fprintf( stderr,
 568                                                                 "%s: line %d: group: \"%s\" not allowed by \"%s\"\n",
 569                                                                 fname, lineno,
 570                                                                 b->a_group_at->ad_cname.bv_val,
 571                                                                 b->a_group_oc->soc_oid );
 572                                                         acl_usage();
 573                                                 }
 574                                         }
 575                                         continue;
 576                                 }
 577
 578                                 if ( strcasecmp( left, "peername" ) == 0 ) {
 579                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 580                                                 fprintf( stderr,
 581                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 582                                                         fname, lineno, left );
 583                                                 acl_usage();
 584                                         }
 585
 586                                         if( b->a_peername_pat != NULL ) {
 587                                                 fprintf( stderr,
 588                                                         "%s: line %d: peername pattern already specified.\n",
 589                                                         fname, lineno );
 590                                                 acl_usage();
 591                                         }
 592
 593                                         b->a_peername_style = sty;
 594                                         if (sty == ACL_STYLE_REGEX) {
 595                                                 bv.bv_val = right;
 596                                                 acl_regex_normalized_dn( &bv );
 597                                                 regtest(fname, lineno, bv.bv_val);
 598                                                 b->a_peername_pat = bv.bv_val;
 599                                         } else {
 600                                                 b->a_peername_pat = ch_strdup( right );
 601                                         }
 602                                         continue;
 603                                 }
 604
 605                                 if ( strcasecmp( left, "sockname" ) == 0 ) {
 606                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 607                                                 fprintf( stderr,
 608                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 609                                                         fname, lineno, left );
 610                                                 acl_usage();
 611                                         }
 612
 613                                         if( b->a_sockname_pat != NULL ) {
 614                                                 fprintf( stderr,
 615                                                         "%s: line %d: sockname pattern already specified.\n",
 616                                                         fname, lineno );
 617                                                 acl_usage();
 618                                         }
 619
 620                                         b->a_sockname_style = sty;
 621                                         if (sty == ACL_STYLE_REGEX) {
 622                                                 bv.bv_val = right;
 623                                                 acl_regex_normalized_dn( &bv );
 624                                                 regtest(fname, lineno, bv.bv_val);
 625                                                 b->a_sockname_pat = bv.bv_val;
 626                                         } else {
 627                                                 b->a_sockname_pat = ch_strdup( right );
 628                                         }
 629                                         continue;
 630                                 }
 631
 632                                 if ( strcasecmp( left, "domain" ) == 0 ) {
 633                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 634                                                 fprintf( stderr,
 635                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 636                                                         fname, lineno, left );
 637                                                 acl_usage();
 638                                         }
 639
 640                                         if( b->a_domain_pat != NULL ) {
 641                                                 fprintf( stderr,
 642                                                         "%s: line %d: domain pattern already specified.\n",
 643                                                         fname, lineno );
 644                                                 acl_usage();
 645                                         }
 646
 647                                         b->a_domain_style = sty;
 648                                         if (sty == ACL_STYLE_REGEX) {
 649                                                 bv.bv_val = right;
 650                                                 acl_regex_normalized_dn( &bv );
 651                                                 regtest(fname, lineno, bv.bv_val);
 652                                                 b->a_domain_pat = bv.bv_val;
 653                                         } else {
 654                                                 b->a_domain_pat = ch_strdup( right );
 655                                         }
 656                                         continue;
 657                                 }
 658
 659                                 if ( strcasecmp( left, "sockurl" ) == 0 ) {
 660                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 661                                                 fprintf( stderr,
 662                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 663                                                         fname, lineno, left );
 664                                                 acl_usage();
 665                                         }
 666
 667                                         if( b->a_sockurl_pat != NULL ) {
 668                                                 fprintf( stderr,
 669                                                         "%s: line %d: sockurl pattern already specified.\n",
 670                                                         fname, lineno );
 671                                                 acl_usage();
 672                                         }
 673
 674                                         b->a_sockurl_style = sty;
 675                                         if (sty == ACL_STYLE_REGEX) {
 676                                                 bv.bv_val = right;
 677                                                 acl_regex_normalized_dn( &bv );
 678                                                 regtest(fname, lineno, bv.bv_val);
 679                                                 b->a_sockurl_pat = bv.bv_val;
 680                                         } else {
 681                                                 b->a_sockurl_pat = ch_strdup( right );
 682                                         }
 683                                         continue;
 684                                 }
 685
 686                                 if ( strcasecmp( left, "set" ) == 0 ) {
 687                                         if( b->a_set_pat.bv_len != 0 ) {
 688                                                 fprintf( stderr,
 689                                                         "%s: line %d: set attribute already specified.\n",
 690                                                         fname, lineno );
 691                                                 acl_usage();
 692                                         }
 693
 694                                         if ( right == NULL || *right == '\0' ) {
 695                                                 fprintf( stderr,
 696                                                         "%s: line %d: no set is defined\n",
 697                                                         fname, lineno );
 698                                                 acl_usage();
 699                                         }
 700
 701                                         b->a_set_style = sty;
 702                                         ber_str2bv( right, 0, 1, &b->a_set_pat );
 703
 704                                         continue;
 705                                 }
 706
 707 #ifdef SLAPD_ACI_ENABLED
 708                                 if ( strcasecmp( left, "aci" ) == 0 ) {
 709                                         if( b->a_aci_at != NULL ) {
 710                                                 fprintf( stderr,
 711                                                         "%s: line %d: aci attribute already specified.\n",
 712                                                         fname, lineno );
 713                                                 acl_usage();
 714                                         }
 715
 716                                         if ( right != NULL && *right != '\0' ) {
 717                                                 rc = slap_str2ad( right, &b->a_aci_at, &text );
 718
 719                                                 if( rc != LDAP_SUCCESS ) {
 720                                                         fprintf( stderr,
 721                                                                 "%s: line %d: aci \"%s\": %s\n",
 722                                                                 fname, lineno, right, text );
 723                                                         acl_usage();
 724                                                 }
 725
 726                                         } else {
 727                                                 rc = slap_str2ad( SLAPD_ACI_ATTR, &b->a_aci_at, &text );
 728
 729                                                 if( rc != LDAP_SUCCESS ) {
 730                                                         fprintf( stderr,
 731                                                                 "%s: line %d: aci \"%s\": %s\n",
 732                                                                 fname, lineno, SLAPD_ACI_ATTR, text );
 733                                                         acl_usage();
 734                                                 }
 735                                         }
 736
 737                                         if( !is_at_syntax( b->a_aci_at->ad_type,
 738                                                 SLAPD_ACI_SYNTAX) )
 739                                         {
 740                                                 fprintf( stderr,
 741                                                         "%s: line %d: aci \"%s\": inappropriate syntax: %s\n",
 742                                                         fname, lineno, right,
 743                                                         b->a_aci_at->ad_type->sat_syntax_oid );
 744                                                 acl_usage();
 745                                         }
 746
 747                                         continue;
 748                                 }
 749 #endif /* SLAPD_ACI_ENABLED */
 750
 751                                 if ( strcasecmp( left, "ssf" ) == 0 ) {
 752                                         if( b->a_authz.sai_ssf ) {
 753                                                 fprintf( stderr,
 754                                                         "%s: line %d: ssf attribute already specified.\n",
 755                                                         fname, lineno );
 756                                                 acl_usage();
 757                                         }
 758
 759                                         if ( right == NULL || *right == '\0' ) {
 760                                                 fprintf( stderr,
 761                                                         "%s: line %d: no ssf is defined\n",
 762                                                         fname, lineno );
 763                                                 acl_usage();
 764                                         }
 765
 766                                         b->a_authz.sai_ssf = atoi( right );
 767
 768                                         if( !b->a_authz.sai_ssf ) {
 769                                                 fprintf( stderr,
 770                                                         "%s: line %d: invalid ssf value (%s)\n",
 771                                                         fname, lineno, right );
 772                                                 acl_usage();
 773                                         }
 774                                         continue;
 775                                 }
 776
 777                                 if ( strcasecmp( left, "transport_ssf" ) == 0 ) {
 778                                         if( b->a_authz.sai_transport_ssf ) {
 779                                                 fprintf( stderr,
 780                                                         "%s: line %d: transport_ssf attribute already specified.\n",
 781                                                         fname, lineno );
 782                                                 acl_usage();
 783                                         }
 784
 785                                         if ( right == NULL || *right == '\0' ) {
 786                                                 fprintf( stderr,
 787                                                         "%s: line %d: no transport_ssf is defined\n",
 788                                                         fname, lineno );
 789                                                 acl_usage();
 790                                         }
 791
 792                                         b->a_authz.sai_transport_ssf = atoi( right );
 793
 794                                         if( !b->a_authz.sai_transport_ssf ) {
 795                                                 fprintf( stderr,
 796                                                         "%s: line %d: invalid transport_ssf value (%s)\n",
 797                                                         fname, lineno, right );
 798                                                 acl_usage();
 799                                         }
 800                                         continue;
 801                                 }
 802
 803                                 if ( strcasecmp( left, "tls_ssf" ) == 0 ) {
 804                                         if( b->a_authz.sai_tls_ssf ) {
 805                                                 fprintf( stderr,
 806                                                         "%s: line %d: tls_ssf attribute already specified.\n",
 807                                                         fname, lineno );
 808                                                 acl_usage();
 809                                         }
 810
 811                                         if ( right == NULL || *right == '\0' ) {
 812                                                 fprintf( stderr,
 813                                                         "%s: line %d: no tls_ssf is defined\n",
 814                                                         fname, lineno );
 815                                                 acl_usage();
 816                                         }
 817
 818                                         b->a_authz.sai_tls_ssf = atoi( right );
 819
 820                                         if( !b->a_authz.sai_tls_ssf ) {
 821                                                 fprintf( stderr,
 822                                                         "%s: line %d: invalid tls_ssf value (%s)\n",
 823                                                         fname, lineno, right );
 824                                                 acl_usage();
 825                                         }
 826                                         continue;
 827                                 }
 828
 829                                 if ( strcasecmp( left, "sasl_ssf" ) == 0 ) {
 830                                         if( b->a_authz.sai_sasl_ssf ) {
 831                                                 fprintf( stderr,
 832                                                         "%s: line %d: sasl_ssf attribute already specified.\n",
 833                                                         fname, lineno );
 834                                                 acl_usage();
 835                                         }
 836
 837                                         if ( right == NULL || *right == '\0' ) {
 838                                                 fprintf( stderr,
 839                                                         "%s: line %d: no sasl_ssf is defined\n",
 840                                                         fname, lineno );
 841                                                 acl_usage();
 842                                         }
 843
 844                                         b->a_authz.sai_sasl_ssf = atoi( right );
 845
 846                                         if( !b->a_authz.sai_sasl_ssf ) {
 847                                                 fprintf( stderr,
 848                                                         "%s: line %d: invalid sasl_ssf value (%s)\n",
 849                                                         fname, lineno, right );
 850                                                 acl_usage();
 851                                         }
 852                                         continue;
 853                                 }
 854
 855                                 if( right != NULL ) {
 856                                         /* unsplit */
 857                                         right[-1] = '=';
 858                                 }
 859                                 break;
 860                         }
 861
 862                         if( i == argc || ( strcasecmp( left, "stop" ) == 0 )) {
 863                                 /* out of arguments or plain stop */
 864
 865                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
 866                                 b->a_type = ACL_STOP;
 867
 868                                 access_append( &a->acl_access, b );
 869                                 continue;
 870                         }
 871
 872                         if( strcasecmp( left, "continue" ) == 0 ) {
 873                                 /* plain continue */
 874
 875                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
 876                                 b->a_type = ACL_CONTINUE;
 877
 878                                 access_append( &a->acl_access, b );
 879                                 continue;
 880                         }
 881
 882                         if( strcasecmp( left, "break" ) == 0 ) {
 883                                 /* plain continue */
 884
 885                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
 886                                 b->a_type = ACL_BREAK;
 887
 888                                 access_append( &a->acl_access, b );
 889                                 continue;
 890                         }
 891
 892                         if ( strcasecmp( left, "by" ) == 0 ) {
 893                                 /* we've gone too far */
 894                                 --i;
 895                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
 896                                 b->a_type = ACL_STOP;
 897
 898                                 access_append( &a->acl_access, b );
 899                                 continue;
 900                         }
 901
 902                         /* get <access> */
 903                         if( strncasecmp( left, "self", 4 ) == 0 ) {
 904                                 b->a_dn_self = 1;
 905                                 ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( &left[4] ) );
 906
 907                         } else {
 908                                 ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( left ) );
 909                         }
 910
 911                         if( ACL_IS_INVALID( b->a_access_mask ) ) {
 912                                 fprintf( stderr,
 913                                         "%s: line %d: expecting <access> got \"%s\"\n",
 914                                         fname, lineno, left );
 915                                 acl_usage();
 916                         }
 917
 918                         b->a_type = ACL_STOP;
 919
 920                         if( ++i == argc ) {
 921                                 /* out of arguments or plain stop */
 922                                 access_append( &a->acl_access, b );
 923                                 continue;
 924                         }
 925
 926                         if( strcasecmp( argv[i], "continue" ) == 0 ) {
 927                                 /* plain continue */
 928                                 b->a_type = ACL_CONTINUE;
 929
 930                         } else if( strcasecmp( argv[i], "break" ) == 0 ) {
 931                                 /* plain continue */
 932                                 b->a_type = ACL_BREAK;
 933
 934                         } else if ( strcasecmp( argv[i], "stop" ) != 0 ) {
 935                                 /* gone to far */
 936                                 i--;
 937                         }
 938
 939                         access_append( &a->acl_access, b );
 940
 941                 } else {
 942                         fprintf( stderr,
 943                     "%s: line %d: expecting \"to\" or \"by\" got \"%s\"\n",
 944                             fname, lineno, argv[i] );
 945                         acl_usage();
 946                 }
 947         }
 948
 949         /* if we have no real access clause, complain and do nothing */
 950         if ( a == NULL ) {
 951                         fprintf( stderr,
 952                                 "%s: line %d: warning: no access clause(s) specified in access line\n",
 953                             fname, lineno );
 954
 955         } else {
 956 #ifdef LDAP_DEBUG
 957                 if (ldap_debug & LDAP_DEBUG_ACL)
 958                         print_acl(be, a);
 959 #endif
 960
 961                 if ( a->acl_access == NULL ) {
 962                         fprintf( stderr,
 963                         "%s: line %d: warning: no by clause(s) specified in access line\n",
 964                             fname, lineno );
 965                 }
 966
 967                 if ( be != NULL ) {
 968                         acl_append( &be->be_acl, a );
 969                 } else {
 970                         acl_append( &global_acl, a );
 971                 }
 972         }
 973 }
 974
 975 char *
 976 accessmask2str( slap_mask_t mask, char *buf )
 977 {
 978         int none=1;
 979         char *ptr = buf;
 980
 981         assert( buf != NULL );
 982
 983         if ( ACL_IS_INVALID( mask ) ) {
 984                 return "invalid";
 985         }
 986
 987         buf[0] = '\0';
 988
 989         if ( ACL_IS_LEVEL( mask ) ) {
 990                 if ( ACL_LVL_IS_NONE(mask) ) {
 991                         ptr = slap_strcopy( ptr, "none" );
 992
 993                 } else if ( ACL_LVL_IS_AUTH(mask) ) {
 994                         ptr = slap_strcopy( ptr, "auth" );
 995
 996                 } else if ( ACL_LVL_IS_COMPARE(mask) ) {
 997                         ptr = slap_strcopy( ptr, "compare" );
 998
 999                 } else if ( ACL_LVL_IS_SEARCH(mask) ) {
1000                         ptr = slap_strcopy( ptr, "search" );
1001
1002                 } else if ( ACL_LVL_IS_READ(mask) ) {
1003                         ptr = slap_strcopy( ptr, "read" );
1004
1005                 } else if ( ACL_LVL_IS_WRITE(mask) ) {
1006                         ptr = slap_strcopy( ptr, "write" );
1007                 } else {
1008                         ptr = slap_strcopy( ptr, "unknown" );
1009                 }
1010
1011                 *ptr++ = '(';
1012         }
1013
1014         if( ACL_IS_ADDITIVE( mask ) ) {
1015                 *ptr++ = '+';
1016
1017         } else if( ACL_IS_SUBTRACTIVE( mask ) ) {
1018                 *ptr++ = '-';
1019
1020         } else {
1021                 *ptr++ = '=';
1022         }
1023
1024         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_WRITE) ) {
1025                 none = 0;
1026                 *ptr++ = 'w';
1027         }
1028
1029         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_READ) ) {
1030                 none = 0;
1031                 *ptr++ = 'r';
1032         }
1033
1034         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_SEARCH) ) {
1035                 none = 0;
1036                 *ptr++ = 's';
1037         }
1038
1039         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_COMPARE) ) {
1040                 none = 0;
1041                 *ptr++ = 'c';
1042         }
1043
1044         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_AUTH) ) {
1045                 none = 0;
1046                 *ptr++ = 'x';
1047         }
1048
1049         if ( none && ACL_PRIV_ISSET(mask, ACL_PRIV_NONE) ) {
1050                 none = 0;
1051                 *ptr++ = 'n';
1052         }
1053
1054         if ( none ) {
1055                 *ptr++ = '0';
1056         }
1057
1058         if ( ACL_IS_LEVEL( mask ) ) {
1059                 *ptr = ')';
1060         }
1061         return buf;
1062 }
1063
1064 slap_mask_t
1065 str2accessmask( const char *str )
1066 {
1067         slap_mask_t     mask;
1068
1069         if( !ASCII_ALPHA(str[0]) ) {
1070                 int i;
1071
1072                 if ( str[0] == '=' ) {
1073                         ACL_INIT(mask);
1074
1075                 } else if( str[0] == '+' ) {
1076                         ACL_PRIV_ASSIGN(mask, ACL_PRIV_ADDITIVE);
1077
1078                 } else if( str[0] == '-' ) {
1079                         ACL_PRIV_ASSIGN(mask, ACL_PRIV_SUBSTRACTIVE);
1080
1081                 } else {
1082                         ACL_INVALIDATE(mask);
1083                         return mask;
1084                 }
1085
1086                 for( i=1; str[i] != '\0'; i++ ) {
1087                         if( TOLOWER(str[i]) == 'w' ) {
1088                                 ACL_PRIV_SET(mask, ACL_PRIV_WRITE);
1089
1090                         } else if( TOLOWER(str[i]) == 'r' ) {
1091                                 ACL_PRIV_SET(mask, ACL_PRIV_READ);
1092
1093                         } else if( TOLOWER(str[i]) == 's' ) {
1094                                 ACL_PRIV_SET(mask, ACL_PRIV_SEARCH);
1095
1096                         } else if( TOLOWER(str[i]) == 'c' ) {
1097                                 ACL_PRIV_SET(mask, ACL_PRIV_COMPARE);
1098
1099                         } else if( TOLOWER(str[i]) == 'x' ) {
1100                                 ACL_PRIV_SET(mask, ACL_PRIV_AUTH);
1101
1102                         } else if( str[i] != '0' ) {
1103                                 ACL_INVALIDATE(mask);
1104                                 return mask;
1105                         }
1106                 }
1107
1108                 return mask;
1109         }
1110
1111         if ( strcasecmp( str, "none" ) == 0 ) {
1112                 ACL_LVL_ASSIGN_NONE(mask);
1113
1114         } else if ( strcasecmp( str, "auth" ) == 0 ) {
1115                 ACL_LVL_ASSIGN_AUTH(mask);
1116
1117         } else if ( strcasecmp( str, "compare" ) == 0 ) {
1118                 ACL_LVL_ASSIGN_COMPARE(mask);
1119
1120         } else if ( strcasecmp( str, "search" ) == 0 ) {
1121                 ACL_LVL_ASSIGN_SEARCH(mask);
1122
1123         } else if ( strcasecmp( str, "read" ) == 0 ) {
1124                 ACL_LVL_ASSIGN_READ(mask);
1125
1126         } else if ( strcasecmp( str, "write" ) == 0 ) {
1127                 ACL_LVL_ASSIGN_WRITE(mask);
1128
1129         } else {
1130                 ACL_INVALIDATE( mask );
1131         }
1132
1133         return mask;
1134 }
1135
1136 static void
1137 acl_usage( void )
1138 {
1139         fprintf( stderr, "\n"
1140                 "<access clause> ::= access to <what> "
1141                                 "[ by <who> <access> [ <control> ] ]+ \n"
1142                 "<what> ::= * | [dn[.<dnstyle>]=<regex>] [filter=<ldapfilter>] [attrs=<attrlist>]\n"
1143                 "<attrlist> ::= <attr> | <attr> , <attrlist>\n"
1144                 "<attr> ::= <attrname> | entry | children\n"
1145                 "<who> ::= [ * | anonymous | users | self | dn[.<dnstyle>]=<regex> ]\n"
1146                         "\t[dnattr=<attrname>]\n"
1147                         "\t[group[/<objectclass>[/<attrname>]][.<style>]=<regex>]\n"
1148                         "\t[peername[.<style>]=<regex>] [sockname[.<style>]=<regex>]\n"
1149                         "\t[domain[.<style>]=<regex>] [sockurl[.<style>]=<regex>]\n"
1150 #ifdef SLAPD_ACI_ENABLED
1151                         "\t[aci=<attrname>]\n"
1152 #endif
1153                         "\t[ssf=<n>] [transport_ssf=<n>] [tls_ssf=<n>] [sasl_ssf=<n>]\n"
1154                 "<dnstyle> ::= regex | base | exact (alias of base) | one | sub | children\n"
1155                 "<style> ::= regex | base | exact (alias of base)\n"
1156                 "<groupflags> ::= R\n"
1157                 "<access> ::= [self]{<level>|<priv>}\n"
1158                 "<level> ::= none | auth | compare | search | read | write\n"
1159                 "<priv> ::= {=|+|-}{w|r|s|c|x}+\n"
1160                 "<control> ::= [ stop | continue | break ]\n"
1161                 );
1162         exit( EXIT_FAILURE );
1163 }
1164
1165 /*
1166  * At present it simply eats the (optional) space after
1167  * a RDN separator (,)
1168  * Eventually will evolve in a more complete normalization
1169  *
1170  * Note that the input berval only needs bv_val, it ignores
1171  * the input bv_len and sets it on return.
1172  */
1173 static void
1174 acl_regex_normalized_dn(
1175         struct berval *pattern
1176 )
1177 {
1178         char *str, *p;
1179
1180         str = ch_strdup( pattern->bv_val );
1181
1182         for ( p = str; p && p[ 0 ]; p++ ) {
1183                 /* escape */
1184                 if ( p[ 0 ] == '\\' ) {
1185                         /*
1186                          * if escaping a hex pair we should
1187                          * increment p twice; however, in that
1188                          * case the second hex number does
1189                          * no harm
1190                          */
1191                         p++;
1192                 }
1193
1194                 if ( p[ 0 ] == ',' ) {
1195                         if ( p[ 1 ] == ' ' ) {
1196                                 char *q;
1197
1198                                 /*
1199                                  * too much space should be
1200                                  * an error if we are pedantic
1201                                  */
1202                                 for ( q = &p[ 2 ]; q[ 0 ] == ' '; q++ ) {
1203                                         /* DO NOTHING */ ;
1204                                 }
1205                                 AC_MEMCPY( p+1, q, pattern->bv_len-(q-str)+1);
1206                         }
1207                 }
1208         }
1209         pattern->bv_val = str;
1210         pattern->bv_len = p-str;
1211
1212         return;
1213 }
1214
1215 static void
1216 split(
1217     char        *line,
1218     int         splitchar,
1219     char        **left,
1220     char        **right
1221 )
1222 {
1223         *left = line;
1224         if ( (*right = strchr( line, splitchar )) != NULL ) {
1225                 *((*right)++) = '\0';
1226         }
1227 }
1228
1229 static void
1230 access_append( Access **l, Access *a )
1231 {
1232         for ( ; *l != NULL; l = &(*l)->a_next )
1233                 ;       /* NULL */
1234
1235         *l = a;
1236 }
1237
1238 void
1239 acl_append( AccessControl **l, AccessControl *a )
1240 {
1241         for ( ; *l != NULL; l = &(*l)->acl_next )
1242                 ;       /* NULL */
1243
1244         *l = a;
1245 }
1246
1247 static void
1248 access_free( Access *a )
1249 {
1250         if ( a->a_dn_pat.bv_val )
1251                 free ( a->a_dn_pat.bv_val );
1252         if ( a->a_peername_pat )
1253                 free ( a->a_peername_pat );
1254         if ( a->a_sockname_pat )
1255                 free ( a->a_sockname_pat );
1256         if ( a->a_domain_pat )
1257                 free ( a->a_domain_pat );
1258         if ( a->a_sockurl_pat )
1259                 free ( a->a_sockurl_pat );
1260         if ( a->a_set_pat.bv_len )
1261                 free ( a->a_set_pat.bv_val );
1262         if ( a->a_group_pat.bv_len )
1263                 free ( a->a_group_pat.bv_val );
1264         free( a );
1265 }
1266
1267 void
1268 acl_free( AccessControl *a )
1269 {
1270         Access *n;
1271
1272         if ( a->acl_filter )
1273                 filter_free( a->acl_filter );
1274         if ( a->acl_dn_pat.bv_len )
1275                 free ( a->acl_dn_pat.bv_val );
1276         if ( a->acl_attrs )
1277                 ber_bvecfree( a->acl_attrs );
1278         for (; a->acl_access; a->acl_access = n) {
1279                 n = a->acl_access->a_next;
1280                 access_free( a->acl_access );
1281         }
1282         free( a );
1283 }
1284
1285 /* Because backend_startup uses acl_append to tack on the global_acl to
1286  * the end of each backend's acl, we cannot just take one argument and
1287  * merrily free our way to the end of the list. backend_destroy calls us
1288  * with the be_acl in arg1, and global_acl in arg2 to give us a stopping
1289  * point. config_destroy calls us with global_acl in arg1 and NULL in
1290  * arg2, so we then proceed to polish off the global_acl.
1291  */
1292 void
1293 acl_destroy( AccessControl *a, AccessControl *end )
1294 {
1295         AccessControl *n;
1296
1297         for (; a && a!= end; a=n) {
1298                 n = a->acl_next;
1299                 acl_free( a );
1300         }
1301 }
1302
1303 char *
1304 access2str( slap_access_t access )
1305 {
1306         if ( access == ACL_NONE ) {
1307                 return "none";
1308
1309         } else if ( access == ACL_AUTH ) {
1310                 return "auth";
1311
1312         } else if ( access == ACL_COMPARE ) {
1313                 return "compare";
1314
1315         } else if ( access == ACL_SEARCH ) {
1316                 return "search";
1317
1318         } else if ( access == ACL_READ ) {
1319                 return "read";
1320
1321         } else if ( access == ACL_WRITE ) {
1322                 return "write";
1323         }
1324
1325         return "unknown";
1326 }
1327
1328 slap_access_t
1329 str2access( const char *str )
1330 {
1331         if ( strcasecmp( str, "none" ) == 0 ) {
1332                 return ACL_NONE;
1333
1334         } else if ( strcasecmp( str, "auth" ) == 0 ) {
1335                 return ACL_AUTH;
1336
1337         } else if ( strcasecmp( str, "compare" ) == 0 ) {
1338                 return ACL_COMPARE;
1339
1340         } else if ( strcasecmp( str, "search" ) == 0 ) {
1341                 return ACL_SEARCH;
1342
1343         } else if ( strcasecmp( str, "read" ) == 0 ) {
1344                 return ACL_READ;
1345
1346         } else if ( strcasecmp( str, "write" ) == 0 ) {
1347                 return ACL_WRITE;
1348         }
1349
1350         return( ACL_INVALID_ACCESS );
1351 }
1352
1353 #ifdef LDAP_DEBUG
1354
1355 static char *style_strings[5] = {
1356                         "regex",
1357                         "base",
1358                         "one",
1359                         "subtree",
1360                         "children"
1361                 };
1362
1363
1364 static void
1365 print_access( Access *b )
1366 {
1367         char maskbuf[ACCESSMASK_MAXLEN];
1368
1369         fprintf( stderr, "\tby" );
1370
1371         if ( b->a_dn_pat.bv_len != 0 ) {
1372                 if( strcmp(b->a_dn_pat.bv_val, "*") == 0
1373                         || strcmp(b->a_dn_pat.bv_val, "users") == 0
1374                         || strcmp(b->a_dn_pat.bv_val, "anonymous") == 0
1375                         || strcmp(b->a_dn_pat.bv_val, "self") == 0 )
1376                 {
1377                         fprintf( stderr, " %s", b->a_dn_pat.bv_val );
1378
1379                 } else {
1380                         fprintf( stderr, " dn.%s=%s", style_strings[b->a_dn_style], b->a_dn_pat.bv_val );
1381                 }
1382         }
1383
1384         if ( b->a_dn_at != NULL ) {
1385                 fprintf( stderr, " dnattr=%s", b->a_dn_at->ad_cname.bv_val );
1386         }
1387
1388         if ( b->a_group_pat.bv_len ) {
1389                 fprintf( stderr, " group=%s", b->a_group_pat.bv_val );
1390
1391                 if ( b->a_group_oc ) {
1392                         fprintf( stderr, " objectClass: %s",
1393                                 b->a_group_oc->soc_oclass.oc_oid );
1394
1395                         if ( b->a_group_at ) {
1396                                 fprintf( stderr, " attributeType: %s", b->a_group_at->ad_cname.bv_val );
1397                         }
1398                 }
1399     }
1400
1401         if ( b->a_peername_pat != NULL ) {
1402                 fprintf( stderr, " peername=%s", b->a_peername_pat );
1403         }
1404
1405         if ( b->a_sockname_pat != NULL ) {
1406                 fprintf( stderr, " sockname=%s", b->a_sockname_pat );
1407         }
1408
1409         if ( b->a_domain_pat != NULL ) {
1410                 fprintf( stderr, " domain=%s", b->a_domain_pat );
1411         }
1412
1413         if ( b->a_sockurl_pat != NULL ) {
1414                 fprintf( stderr, " sockurl=%s", b->a_sockurl_pat );
1415         }
1416
1417 #ifdef SLAPD_ACI_ENABLED
1418         if ( b->a_aci_at != NULL ) {
1419                 fprintf( stderr, " aci=%s", b->a_aci_at->ad_cname.bv_val );
1420         }
1421 #endif
1422
1423         /* Security Strength Factors */
1424         if ( b->a_authz.sai_ssf ) {
1425                 fprintf( stderr, " ssf=%u",
1426                         b->a_authz.sai_ssf );
1427         }
1428         if ( b->a_authz.sai_transport_ssf ) {
1429                 fprintf( stderr, " transport_ssf=%u",
1430                         b->a_authz.sai_transport_ssf );
1431         }
1432         if ( b->a_authz.sai_tls_ssf ) {
1433                 fprintf( stderr, " tls_ssf=%u",
1434                         b->a_authz.sai_tls_ssf );
1435         }
1436         if ( b->a_authz.sai_sasl_ssf ) {
1437                 fprintf( stderr, " sasl_ssf=%u",
1438                         b->a_authz.sai_sasl_ssf );
1439         }
1440
1441         fprintf( stderr, " %s%s",
1442                 b->a_dn_self ? "self" : "",
1443                 accessmask2str( b->a_access_mask, maskbuf ) );
1444
1445         if( b->a_type == ACL_BREAK ) {
1446                 fprintf( stderr, " break" );
1447
1448         } else if( b->a_type == ACL_CONTINUE ) {
1449                 fprintf( stderr, " continue" );
1450
1451         } else if( b->a_type != ACL_STOP ) {
1452                 fprintf( stderr, " unknown-control" );
1453         }
1454
1455         fprintf( stderr, "\n" );
1456 }
1457
1458
1459 static void
1460 print_acl( Backend *be, AccessControl *a )
1461 {
1462         int             to = 0;
1463         Access  *b;
1464
1465         fprintf( stderr, "%s ACL: access to",
1466                 be == NULL ? "Global" : "Backend" );
1467
1468         if ( a->acl_dn_pat.bv_len != 0 ) {
1469                 to++;
1470                 fprintf( stderr, " dn.%s=%s\n",
1471                         style_strings[a->acl_dn_style], a->acl_dn_pat.bv_val );
1472         }
1473
1474         if ( a->acl_filter != NULL ) {
1475                 to++;
1476                 fprintf( stderr, " filter=" );
1477                 filter_print( a->acl_filter );
1478                 fprintf( stderr, "\n" );
1479         }
1480
1481         if ( a->acl_attrs != NULL ) {
1482                 int     i, first = 1;
1483                 to++;
1484
1485                 fprintf( stderr, " attrs=" );
1486                 for ( i = 0; a->acl_attrs[i] != NULL; i++ ) {
1487                         if ( ! first ) {
1488                                 fprintf( stderr, "," );
1489                         }
1490                         fputs( a->acl_attrs[i]->bv_val, stderr );
1491                         first = 0;
1492                 }
1493                 fprintf(  stderr, "\n" );
1494         }
1495
1496         if( !to ) {
1497                 fprintf( stderr, " *\n" );
1498         }
1499
1500         for ( b = a->acl_access; b != NULL; b = b->a_next ) {
1501                 print_access( b );
1502         }
1503
1504         fprintf( stderr, "\n" );
1505 }
1506
1507 #endif /* LDAP_DEBUG */