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 = str2anlist( 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 vals[2];
 556
 557                                                 vals[0].bv_val = b->a_group_oc->soc_oid;
 558                                                 vals[0].bv_len = strlen(vals[0].bv_val);
 559                                                 vals[1].bv_val = NULL;
 560
 561
 562                                                 rc = oc_check_allowed( b->a_group_at->ad_type, vals, NULL );
 563
 564                                                 if( rc != 0 ) {
 565                                                         fprintf( stderr,
 566                                                                 "%s: line %d: group: \"%s\" not allowed by \"%s\"\n",
 567                                                                 fname, lineno,
 568                                                                 b->a_group_at->ad_cname.bv_val,
 569                                                                 b->a_group_oc->soc_oid );
 570                                                         acl_usage();
 571                                                 }
 572                                         }
 573                                         continue;
 574                                 }
 575
 576                                 if ( strcasecmp( left, "peername" ) == 0 ) {
 577                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 578                                                 fprintf( stderr,
 579                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 580                                                         fname, lineno, left );
 581                                                 acl_usage();
 582                                         }
 583
 584                                         if( b->a_peername_pat != NULL ) {
 585                                                 fprintf( stderr,
 586                                                         "%s: line %d: peername pattern already specified.\n",
 587                                                         fname, lineno );
 588                                                 acl_usage();
 589                                         }
 590
 591                                         b->a_peername_style = sty;
 592                                         if (sty == ACL_STYLE_REGEX) {
 593                                                 bv.bv_val = right;
 594                                                 acl_regex_normalized_dn( &bv );
 595                                                 regtest(fname, lineno, bv.bv_val);
 596                                                 b->a_peername_pat = bv.bv_val;
 597                                         } else {
 598                                                 b->a_peername_pat = ch_strdup( right );
 599                                         }
 600                                         continue;
 601                                 }
 602
 603                                 if ( strcasecmp( left, "sockname" ) == 0 ) {
 604                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 605                                                 fprintf( stderr,
 606                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 607                                                         fname, lineno, left );
 608                                                 acl_usage();
 609                                         }
 610
 611                                         if( b->a_sockname_pat != NULL ) {
 612                                                 fprintf( stderr,
 613                                                         "%s: line %d: sockname pattern already specified.\n",
 614                                                         fname, lineno );
 615                                                 acl_usage();
 616                                         }
 617
 618                                         b->a_sockname_style = sty;
 619                                         if (sty == ACL_STYLE_REGEX) {
 620                                                 bv.bv_val = right;
 621                                                 acl_regex_normalized_dn( &bv );
 622                                                 regtest(fname, lineno, bv.bv_val);
 623                                                 b->a_sockname_pat = bv.bv_val;
 624                                         } else {
 625                                                 b->a_sockname_pat = ch_strdup( right );
 626                                         }
 627                                         continue;
 628                                 }
 629
 630                                 if ( strcasecmp( left, "domain" ) == 0 ) {
 631                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 632                                                 fprintf( stderr,
 633                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 634                                                         fname, lineno, left );
 635                                                 acl_usage();
 636                                         }
 637
 638                                         if( b->a_domain_pat != NULL ) {
 639                                                 fprintf( stderr,
 640                                                         "%s: line %d: domain pattern already specified.\n",
 641                                                         fname, lineno );
 642                                                 acl_usage();
 643                                         }
 644
 645                                         b->a_domain_style = sty;
 646                                         if (sty == ACL_STYLE_REGEX) {
 647                                                 bv.bv_val = right;
 648                                                 acl_regex_normalized_dn( &bv );
 649                                                 regtest(fname, lineno, bv.bv_val);
 650                                                 b->a_domain_pat = bv.bv_val;
 651                                         } else {
 652                                                 b->a_domain_pat = ch_strdup( right );
 653                                         }
 654                                         continue;
 655                                 }
 656
 657                                 if ( strcasecmp( left, "sockurl" ) == 0 ) {
 658                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 659                                                 fprintf( stderr,
 660                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 661                                                         fname, lineno, left );
 662                                                 acl_usage();
 663                                         }
 664
 665                                         if( b->a_sockurl_pat != NULL ) {
 666                                                 fprintf( stderr,
 667                                                         "%s: line %d: sockurl pattern already specified.\n",
 668                                                         fname, lineno );
 669                                                 acl_usage();
 670                                         }
 671
 672                                         b->a_sockurl_style = sty;
 673                                         if (sty == ACL_STYLE_REGEX) {
 674                                                 bv.bv_val = right;
 675                                                 acl_regex_normalized_dn( &bv );
 676                                                 regtest(fname, lineno, bv.bv_val);
 677                                                 b->a_sockurl_pat = bv.bv_val;
 678                                         } else {
 679                                                 b->a_sockurl_pat = ch_strdup( right );
 680                                         }
 681                                         continue;
 682                                 }
 683
 684                                 if ( strcasecmp( left, "set" ) == 0 ) {
 685                                         if( b->a_set_pat.bv_len != 0 ) {
 686                                                 fprintf( stderr,
 687                                                         "%s: line %d: set attribute already specified.\n",
 688                                                         fname, lineno );
 689                                                 acl_usage();
 690                                         }
 691
 692                                         if ( right == NULL || *right == '\0' ) {
 693                                                 fprintf( stderr,
 694                                                         "%s: line %d: no set is defined\n",
 695                                                         fname, lineno );
 696                                                 acl_usage();
 697                                         }
 698
 699                                         b->a_set_style = sty;
 700                                         ber_str2bv( right, 0, 1, &b->a_set_pat );
 701
 702                                         continue;
 703                                 }
 704
 705 #ifdef SLAPD_ACI_ENABLED
 706                                 if ( strcasecmp( left, "aci" ) == 0 ) {
 707                                         if( b->a_aci_at != NULL ) {
 708                                                 fprintf( stderr,
 709                                                         "%s: line %d: aci attribute already specified.\n",
 710                                                         fname, lineno );
 711                                                 acl_usage();
 712                                         }
 713
 714                                         if ( right != NULL && *right != '\0' ) {
 715                                                 rc = slap_str2ad( right, &b->a_aci_at, &text );
 716
 717                                                 if( rc != LDAP_SUCCESS ) {
 718                                                         fprintf( stderr,
 719                                                                 "%s: line %d: aci \"%s\": %s\n",
 720                                                                 fname, lineno, right, text );
 721                                                         acl_usage();
 722                                                 }
 723
 724                                         } else {
 725                                                 rc = slap_str2ad( SLAPD_ACI_ATTR, &b->a_aci_at, &text );
 726
 727                                                 if( rc != LDAP_SUCCESS ) {
 728                                                         fprintf( stderr,
 729                                                                 "%s: line %d: aci \"%s\": %s\n",
 730                                                                 fname, lineno, SLAPD_ACI_ATTR, text );
 731                                                         acl_usage();
 732                                                 }
 733                                         }
 734
 735                                         if( !is_at_syntax( b->a_aci_at->ad_type,
 736                                                 SLAPD_ACI_SYNTAX) )
 737                                         {
 738                                                 fprintf( stderr,
 739                                                         "%s: line %d: aci \"%s\": inappropriate syntax: %s\n",
 740                                                         fname, lineno, right,
 741                                                         b->a_aci_at->ad_type->sat_syntax_oid );
 742                                                 acl_usage();
 743                                         }
 744
 745                                         continue;
 746                                 }
 747 #endif /* SLAPD_ACI_ENABLED */
 748
 749                                 if ( strcasecmp( left, "ssf" ) == 0 ) {
 750                                         if( b->a_authz.sai_ssf ) {
 751                                                 fprintf( stderr,
 752                                                         "%s: line %d: ssf attribute already specified.\n",
 753                                                         fname, lineno );
 754                                                 acl_usage();
 755                                         }
 756
 757                                         if ( right == NULL || *right == '\0' ) {
 758                                                 fprintf( stderr,
 759                                                         "%s: line %d: no ssf is defined\n",
 760                                                         fname, lineno );
 761                                                 acl_usage();
 762                                         }
 763
 764                                         b->a_authz.sai_ssf = atoi( right );
 765
 766                                         if( !b->a_authz.sai_ssf ) {
 767                                                 fprintf( stderr,
 768                                                         "%s: line %d: invalid ssf value (%s)\n",
 769                                                         fname, lineno, right );
 770                                                 acl_usage();
 771                                         }
 772                                         continue;
 773                                 }
 774
 775                                 if ( strcasecmp( left, "transport_ssf" ) == 0 ) {
 776                                         if( b->a_authz.sai_transport_ssf ) {
 777                                                 fprintf( stderr,
 778                                                         "%s: line %d: transport_ssf attribute already specified.\n",
 779                                                         fname, lineno );
 780                                                 acl_usage();
 781                                         }
 782
 783                                         if ( right == NULL || *right == '\0' ) {
 784                                                 fprintf( stderr,
 785                                                         "%s: line %d: no transport_ssf is defined\n",
 786                                                         fname, lineno );
 787                                                 acl_usage();
 788                                         }
 789
 790                                         b->a_authz.sai_transport_ssf = atoi( right );
 791
 792                                         if( !b->a_authz.sai_transport_ssf ) {
 793                                                 fprintf( stderr,
 794                                                         "%s: line %d: invalid transport_ssf value (%s)\n",
 795                                                         fname, lineno, right );
 796                                                 acl_usage();
 797                                         }
 798                                         continue;
 799                                 }
 800
 801                                 if ( strcasecmp( left, "tls_ssf" ) == 0 ) {
 802                                         if( b->a_authz.sai_tls_ssf ) {
 803                                                 fprintf( stderr,
 804                                                         "%s: line %d: tls_ssf attribute already specified.\n",
 805                                                         fname, lineno );
 806                                                 acl_usage();
 807                                         }
 808
 809                                         if ( right == NULL || *right == '\0' ) {
 810                                                 fprintf( stderr,
 811                                                         "%s: line %d: no tls_ssf is defined\n",
 812                                                         fname, lineno );
 813                                                 acl_usage();
 814                                         }
 815
 816                                         b->a_authz.sai_tls_ssf = atoi( right );
 817
 818                                         if( !b->a_authz.sai_tls_ssf ) {
 819                                                 fprintf( stderr,
 820                                                         "%s: line %d: invalid tls_ssf value (%s)\n",
 821                                                         fname, lineno, right );
 822                                                 acl_usage();
 823                                         }
 824                                         continue;
 825                                 }
 826
 827                                 if ( strcasecmp( left, "sasl_ssf" ) == 0 ) {
 828                                         if( b->a_authz.sai_sasl_ssf ) {
 829                                                 fprintf( stderr,
 830                                                         "%s: line %d: sasl_ssf attribute already specified.\n",
 831                                                         fname, lineno );
 832                                                 acl_usage();
 833                                         }
 834
 835                                         if ( right == NULL || *right == '\0' ) {
 836                                                 fprintf( stderr,
 837                                                         "%s: line %d: no sasl_ssf is defined\n",
 838                                                         fname, lineno );
 839                                                 acl_usage();
 840                                         }
 841
 842                                         b->a_authz.sai_sasl_ssf = atoi( right );
 843
 844                                         if( !b->a_authz.sai_sasl_ssf ) {
 845                                                 fprintf( stderr,
 846                                                         "%s: line %d: invalid sasl_ssf value (%s)\n",
 847                                                         fname, lineno, right );
 848                                                 acl_usage();
 849                                         }
 850                                         continue;
 851                                 }
 852
 853                                 if( right != NULL ) {
 854                                         /* unsplit */
 855                                         right[-1] = '=';
 856                                 }
 857                                 break;
 858                         }
 859
 860                         if( i == argc || ( strcasecmp( left, "stop" ) == 0 )) {
 861                                 /* out of arguments or plain stop */
 862
 863                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
 864                                 b->a_type = ACL_STOP;
 865
 866                                 access_append( &a->acl_access, b );
 867                                 continue;
 868                         }
 869
 870                         if( strcasecmp( left, "continue" ) == 0 ) {
 871                                 /* plain continue */
 872
 873                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
 874                                 b->a_type = ACL_CONTINUE;
 875
 876                                 access_append( &a->acl_access, b );
 877                                 continue;
 878                         }
 879
 880                         if( strcasecmp( left, "break" ) == 0 ) {
 881                                 /* plain continue */
 882
 883                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
 884                                 b->a_type = ACL_BREAK;
 885
 886                                 access_append( &a->acl_access, b );
 887                                 continue;
 888                         }
 889
 890                         if ( strcasecmp( left, "by" ) == 0 ) {
 891                                 /* we've gone too far */
 892                                 --i;
 893                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
 894                                 b->a_type = ACL_STOP;
 895
 896                                 access_append( &a->acl_access, b );
 897                                 continue;
 898                         }
 899
 900                         /* get <access> */
 901                         if( strncasecmp( left, "self", 4 ) == 0 ) {
 902                                 b->a_dn_self = 1;
 903                                 ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( &left[4] ) );
 904
 905                         } else {
 906                                 ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( left ) );
 907                         }
 908
 909                         if( ACL_IS_INVALID( b->a_access_mask ) ) {
 910                                 fprintf( stderr,
 911                                         "%s: line %d: expecting <access> got \"%s\"\n",
 912                                         fname, lineno, left );
 913                                 acl_usage();
 914                         }
 915
 916                         b->a_type = ACL_STOP;
 917
 918                         if( ++i == argc ) {
 919                                 /* out of arguments or plain stop */
 920                                 access_append( &a->acl_access, b );
 921                                 continue;
 922                         }
 923
 924                         if( strcasecmp( argv[i], "continue" ) == 0 ) {
 925                                 /* plain continue */
 926                                 b->a_type = ACL_CONTINUE;
 927
 928                         } else if( strcasecmp( argv[i], "break" ) == 0 ) {
 929                                 /* plain continue */
 930                                 b->a_type = ACL_BREAK;
 931
 932                         } else if ( strcasecmp( argv[i], "stop" ) != 0 ) {
 933                                 /* gone to far */
 934                                 i--;
 935                         }
 936
 937                         access_append( &a->acl_access, b );
 938
 939                 } else {
 940                         fprintf( stderr,
 941                     "%s: line %d: expecting \"to\" or \"by\" got \"%s\"\n",
 942                             fname, lineno, argv[i] );
 943                         acl_usage();
 944                 }
 945         }
 946
 947         /* if we have no real access clause, complain and do nothing */
 948         if ( a == NULL ) {
 949                         fprintf( stderr,
 950                                 "%s: line %d: warning: no access clause(s) specified in access line\n",
 951                             fname, lineno );
 952
 953         } else {
 954 #ifdef LDAP_DEBUG
 955                 if (ldap_debug & LDAP_DEBUG_ACL)
 956                         print_acl(be, a);
 957 #endif
 958
 959                 if ( a->acl_access == NULL ) {
 960                         fprintf( stderr,
 961                         "%s: line %d: warning: no by clause(s) specified in access line\n",
 962                             fname, lineno );
 963                 }
 964
 965                 if ( be != NULL ) {
 966                         acl_append( &be->be_acl, a );
 967                 } else {
 968                         acl_append( &global_acl, a );
 969                 }
 970         }
 971 }
 972
 973 char *
 974 accessmask2str( slap_mask_t mask, char *buf )
 975 {
 976         int none=1;
 977         char *ptr = buf;
 978
 979         assert( buf != NULL );
 980
 981         if ( ACL_IS_INVALID( mask ) ) {
 982                 return "invalid";
 983         }
 984
 985         buf[0] = '\0';
 986
 987         if ( ACL_IS_LEVEL( mask ) ) {
 988                 if ( ACL_LVL_IS_NONE(mask) ) {
 989                         ptr = slap_strcopy( ptr, "none" );
 990
 991                 } else if ( ACL_LVL_IS_AUTH(mask) ) {
 992                         ptr = slap_strcopy( ptr, "auth" );
 993
 994                 } else if ( ACL_LVL_IS_COMPARE(mask) ) {
 995                         ptr = slap_strcopy( ptr, "compare" );
 996
 997                 } else if ( ACL_LVL_IS_SEARCH(mask) ) {
 998                         ptr = slap_strcopy( ptr, "search" );
 999
1000                 } else if ( ACL_LVL_IS_READ(mask) ) {
1001                         ptr = slap_strcopy( ptr, "read" );
1002
1003                 } else if ( ACL_LVL_IS_WRITE(mask) ) {
1004                         ptr = slap_strcopy( ptr, "write" );
1005                 } else {
1006                         ptr = slap_strcopy( ptr, "unknown" );
1007                 }
1008
1009                 *ptr++ = '(';
1010         }
1011
1012         if( ACL_IS_ADDITIVE( mask ) ) {
1013                 *ptr++ = '+';
1014
1015         } else if( ACL_IS_SUBTRACTIVE( mask ) ) {
1016                 *ptr++ = '-';
1017
1018         } else {
1019                 *ptr++ = '=';
1020         }
1021
1022         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_WRITE) ) {
1023                 none = 0;
1024                 *ptr++ = 'w';
1025         }
1026
1027         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_READ) ) {
1028                 none = 0;
1029                 *ptr++ = 'r';
1030         }
1031
1032         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_SEARCH) ) {
1033                 none = 0;
1034                 *ptr++ = 's';
1035         }
1036
1037         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_COMPARE) ) {
1038                 none = 0;
1039                 *ptr++ = 'c';
1040         }
1041
1042         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_AUTH) ) {
1043                 none = 0;
1044                 *ptr++ = 'x';
1045         }
1046
1047         if ( none && ACL_PRIV_ISSET(mask, ACL_PRIV_NONE) ) {
1048                 none = 0;
1049                 *ptr++ = 'n';
1050         }
1051
1052         if ( none ) {
1053                 *ptr++ = '0';
1054         }
1055
1056         if ( ACL_IS_LEVEL( mask ) ) {
1057                 *ptr++ = ')';
1058         }
1059
1060         *ptr = '\0';
1061
1062         return buf;
1063 }
1064
1065 slap_mask_t
1066 str2accessmask( const char *str )
1067 {
1068         slap_mask_t     mask;
1069
1070         if( !ASCII_ALPHA(str[0]) ) {
1071                 int i;
1072
1073                 if ( str[0] == '=' ) {
1074                         ACL_INIT(mask);
1075
1076                 } else if( str[0] == '+' ) {
1077                         ACL_PRIV_ASSIGN(mask, ACL_PRIV_ADDITIVE);
1078
1079                 } else if( str[0] == '-' ) {
1080                         ACL_PRIV_ASSIGN(mask, ACL_PRIV_SUBSTRACTIVE);
1081
1082                 } else {
1083                         ACL_INVALIDATE(mask);
1084                         return mask;
1085                 }
1086
1087                 for( i=1; str[i] != '\0'; i++ ) {
1088                         if( TOLOWER(str[i]) == 'w' ) {
1089                                 ACL_PRIV_SET(mask, ACL_PRIV_WRITE);
1090
1091                         } else if( TOLOWER(str[i]) == 'r' ) {
1092                                 ACL_PRIV_SET(mask, ACL_PRIV_READ);
1093
1094                         } else if( TOLOWER(str[i]) == 's' ) {
1095                                 ACL_PRIV_SET(mask, ACL_PRIV_SEARCH);
1096
1097                         } else if( TOLOWER(str[i]) == 'c' ) {
1098                                 ACL_PRIV_SET(mask, ACL_PRIV_COMPARE);
1099
1100                         } else if( TOLOWER(str[i]) == 'x' ) {
1101                                 ACL_PRIV_SET(mask, ACL_PRIV_AUTH);
1102
1103                         } else if( str[i] != '0' ) {
1104                                 ACL_INVALIDATE(mask);
1105                                 return mask;
1106                         }
1107                 }
1108
1109                 return mask;
1110         }
1111
1112         if ( strcasecmp( str, "none" ) == 0 ) {
1113                 ACL_LVL_ASSIGN_NONE(mask);
1114
1115         } else if ( strcasecmp( str, "auth" ) == 0 ) {
1116                 ACL_LVL_ASSIGN_AUTH(mask);
1117
1118         } else if ( strcasecmp( str, "compare" ) == 0 ) {
1119                 ACL_LVL_ASSIGN_COMPARE(mask);
1120
1121         } else if ( strcasecmp( str, "search" ) == 0 ) {
1122                 ACL_LVL_ASSIGN_SEARCH(mask);
1123
1124         } else if ( strcasecmp( str, "read" ) == 0 ) {
1125                 ACL_LVL_ASSIGN_READ(mask);
1126
1127         } else if ( strcasecmp( str, "write" ) == 0 ) {
1128                 ACL_LVL_ASSIGN_WRITE(mask);
1129
1130         } else {
1131                 ACL_INVALIDATE( mask );
1132         }
1133
1134         return mask;
1135 }
1136
1137 static void
1138 acl_usage( void )
1139 {
1140         fprintf( stderr, "\n"
1141                 "<access clause> ::= access to <what> "
1142                                 "[ by <who> <access> [ <control> ] ]+ \n"
1143                 "<what> ::= * | [dn[.<dnstyle>]=<regex>] [filter=<ldapfilter>] [attrs=<attrlist>]\n"
1144                 "<attrlist> ::= <attr> | <attr> , <attrlist>\n"
1145                 "<attr> ::= <attrname> | entry | children\n"
1146                 "<who> ::= [ * | anonymous | users | self | dn[.<dnstyle>]=<regex> ]\n"
1147                         "\t[dnattr=<attrname>]\n"
1148                         "\t[group[/<objectclass>[/<attrname>]][.<style>]=<regex>]\n"
1149                         "\t[peername[.<style>]=<regex>] [sockname[.<style>]=<regex>]\n"
1150                         "\t[domain[.<style>]=<regex>] [sockurl[.<style>]=<regex>]\n"
1151 #ifdef SLAPD_ACI_ENABLED
1152                         "\t[aci=<attrname>]\n"
1153 #endif
1154                         "\t[ssf=<n>] [transport_ssf=<n>] [tls_ssf=<n>] [sasl_ssf=<n>]\n"
1155                 "<dnstyle> ::= regex | base | exact (alias of base) | one | sub | children\n"
1156                 "<style> ::= regex | base | exact (alias of base)\n"
1157                 "<groupflags> ::= R\n"
1158                 "<access> ::= [self]{<level>|<priv>}\n"
1159                 "<level> ::= none | auth | compare | search | read | write\n"
1160                 "<priv> ::= {=|+|-}{w|r|s|c|x}+\n"
1161                 "<control> ::= [ stop | continue | break ]\n"
1162                 );
1163         exit( EXIT_FAILURE );
1164 }
1165
1166 /*
1167  * At present it simply eats the (optional) space after
1168  * a RDN separator (,)
1169  * Eventually will evolve in a more complete normalization
1170  *
1171  * Note that the input berval only needs bv_val, it ignores
1172  * the input bv_len and sets it on return.
1173  */
1174 static void
1175 acl_regex_normalized_dn(
1176         struct berval *pattern
1177 )
1178 {
1179         char *str, *p;
1180
1181         str = ch_strdup( pattern->bv_val );
1182
1183         for ( p = str; p && p[ 0 ]; p++ ) {
1184                 /* escape */
1185                 if ( p[ 0 ] == '\\' ) {
1186                         /*
1187                          * if escaping a hex pair we should
1188                          * increment p twice; however, in that
1189                          * case the second hex number does
1190                          * no harm
1191                          */
1192                         p++;
1193                 }
1194
1195                 if ( p[ 0 ] == ',' ) {
1196                         if ( p[ 1 ] == ' ' ) {
1197                                 char *q;
1198
1199                                 /*
1200                                  * too much space should be
1201                                  * an error if we are pedantic
1202                                  */
1203                                 for ( q = &p[ 2 ]; q[ 0 ] == ' '; q++ ) {
1204                                         /* DO NOTHING */ ;
1205                                 }
1206                                 AC_MEMCPY( p+1, q, pattern->bv_len-(q-str)+1);
1207                         }
1208                 }
1209         }
1210         pattern->bv_val = str;
1211         pattern->bv_len = p-str;
1212
1213         return;
1214 }
1215
1216 static void
1217 split(
1218     char        *line,
1219     int         splitchar,
1220     char        **left,
1221     char        **right
1222 )
1223 {
1224         *left = line;
1225         if ( (*right = strchr( line, splitchar )) != NULL ) {
1226                 *((*right)++) = '\0';
1227         }
1228 }
1229
1230 static void
1231 access_append( Access **l, Access *a )
1232 {
1233         for ( ; *l != NULL; l = &(*l)->a_next )
1234                 ;       /* NULL */
1235
1236         *l = a;
1237 }
1238
1239 void
1240 acl_append( AccessControl **l, AccessControl *a )
1241 {
1242         for ( ; *l != NULL; l = &(*l)->acl_next )
1243                 ;       /* NULL */
1244
1245         *l = a;
1246 }
1247
1248 static void
1249 access_free( Access *a )
1250 {
1251         if ( a->a_dn_pat.bv_val )
1252                 free ( a->a_dn_pat.bv_val );
1253         if ( a->a_peername_pat )
1254                 free ( a->a_peername_pat );
1255         if ( a->a_sockname_pat )
1256                 free ( a->a_sockname_pat );
1257         if ( a->a_domain_pat )
1258                 free ( a->a_domain_pat );
1259         if ( a->a_sockurl_pat )
1260                 free ( a->a_sockurl_pat );
1261         if ( a->a_set_pat.bv_len )
1262                 free ( a->a_set_pat.bv_val );
1263         if ( a->a_group_pat.bv_len )
1264                 free ( a->a_group_pat.bv_val );
1265         free( a );
1266 }
1267
1268 void
1269 acl_free( AccessControl *a )
1270 {
1271         Access *n;
1272         AttributeName *an;
1273
1274         if ( a->acl_filter )
1275                 filter_free( a->acl_filter );
1276         if ( a->acl_dn_pat.bv_len )
1277                 free ( a->acl_dn_pat.bv_val );
1278         for (; a->acl_attrs; a->acl_attrs = an) {
1279                 an = a->acl_attrs->an_next;
1280                 free( a->acl_attrs->an_name.bv_val );
1281                 free( a->acl_attrs );
1282         }
1283         for (; a->acl_access; a->acl_access = n) {
1284                 n = a->acl_access->a_next;
1285                 access_free( a->acl_access );
1286         }
1287         free( a );
1288 }
1289
1290 /* Because backend_startup uses acl_append to tack on the global_acl to
1291  * the end of each backend's acl, we cannot just take one argument and
1292  * merrily free our way to the end of the list. backend_destroy calls us
1293  * with the be_acl in arg1, and global_acl in arg2 to give us a stopping
1294  * point. config_destroy calls us with global_acl in arg1 and NULL in
1295  * arg2, so we then proceed to polish off the global_acl.
1296  */
1297 void
1298 acl_destroy( AccessControl *a, AccessControl *end )
1299 {
1300         AccessControl *n;
1301
1302         for (; a && a!= end; a=n) {
1303                 n = a->acl_next;
1304                 acl_free( a );
1305         }
1306 }
1307
1308 char *
1309 access2str( slap_access_t access )
1310 {
1311         if ( access == ACL_NONE ) {
1312                 return "none";
1313
1314         } else if ( access == ACL_AUTH ) {
1315                 return "auth";
1316
1317         } else if ( access == ACL_COMPARE ) {
1318                 return "compare";
1319
1320         } else if ( access == ACL_SEARCH ) {
1321                 return "search";
1322
1323         } else if ( access == ACL_READ ) {
1324                 return "read";
1325
1326         } else if ( access == ACL_WRITE ) {
1327                 return "write";
1328         }
1329
1330         return "unknown";
1331 }
1332
1333 slap_access_t
1334 str2access( const char *str )
1335 {
1336         if ( strcasecmp( str, "none" ) == 0 ) {
1337                 return ACL_NONE;
1338
1339         } else if ( strcasecmp( str, "auth" ) == 0 ) {
1340                 return ACL_AUTH;
1341
1342         } else if ( strcasecmp( str, "compare" ) == 0 ) {
1343                 return ACL_COMPARE;
1344
1345         } else if ( strcasecmp( str, "search" ) == 0 ) {
1346                 return ACL_SEARCH;
1347
1348         } else if ( strcasecmp( str, "read" ) == 0 ) {
1349                 return ACL_READ;
1350
1351         } else if ( strcasecmp( str, "write" ) == 0 ) {
1352                 return ACL_WRITE;
1353         }
1354
1355         return( ACL_INVALID_ACCESS );
1356 }
1357
1358 #ifdef LDAP_DEBUG
1359
1360 static char *style_strings[5] = {
1361                         "regex",
1362                         "base",
1363                         "one",
1364                         "subtree",
1365                         "children"
1366                 };
1367
1368
1369 static void
1370 print_access( Access *b )
1371 {
1372         char maskbuf[ACCESSMASK_MAXLEN];
1373
1374         fprintf( stderr, "\tby" );
1375
1376         if ( b->a_dn_pat.bv_len != 0 ) {
1377                 if( strcmp(b->a_dn_pat.bv_val, "*") == 0
1378                         || strcmp(b->a_dn_pat.bv_val, "users") == 0
1379                         || strcmp(b->a_dn_pat.bv_val, "anonymous") == 0
1380                         || strcmp(b->a_dn_pat.bv_val, "self") == 0 )
1381                 {
1382                         fprintf( stderr, " %s", b->a_dn_pat.bv_val );
1383
1384                 } else {
1385                         fprintf( stderr, " dn.%s=%s", style_strings[b->a_dn_style], b->a_dn_pat.bv_val );
1386                 }
1387         }
1388
1389         if ( b->a_dn_at != NULL ) {
1390                 fprintf( stderr, " dnattr=%s", b->a_dn_at->ad_cname.bv_val );
1391         }
1392
1393         if ( b->a_group_pat.bv_len ) {
1394                 fprintf( stderr, " group=%s", b->a_group_pat.bv_val );
1395
1396                 if ( b->a_group_oc ) {
1397                         fprintf( stderr, " objectClass: %s",
1398                                 b->a_group_oc->soc_oclass.oc_oid );
1399
1400                         if ( b->a_group_at ) {
1401                                 fprintf( stderr, " attributeType: %s", b->a_group_at->ad_cname.bv_val );
1402                         }
1403                 }
1404     }
1405
1406         if ( b->a_peername_pat != NULL ) {
1407                 fprintf( stderr, " peername=%s", b->a_peername_pat );
1408         }
1409
1410         if ( b->a_sockname_pat != NULL ) {
1411                 fprintf( stderr, " sockname=%s", b->a_sockname_pat );
1412         }
1413
1414         if ( b->a_domain_pat != NULL ) {
1415                 fprintf( stderr, " domain=%s", b->a_domain_pat );
1416         }
1417
1418         if ( b->a_sockurl_pat != NULL ) {
1419                 fprintf( stderr, " sockurl=%s", b->a_sockurl_pat );
1420         }
1421
1422 #ifdef SLAPD_ACI_ENABLED
1423         if ( b->a_aci_at != NULL ) {
1424                 fprintf( stderr, " aci=%s", b->a_aci_at->ad_cname.bv_val );
1425         }
1426 #endif
1427
1428         /* Security Strength Factors */
1429         if ( b->a_authz.sai_ssf ) {
1430                 fprintf( stderr, " ssf=%u",
1431                         b->a_authz.sai_ssf );
1432         }
1433         if ( b->a_authz.sai_transport_ssf ) {
1434                 fprintf( stderr, " transport_ssf=%u",
1435                         b->a_authz.sai_transport_ssf );
1436         }
1437         if ( b->a_authz.sai_tls_ssf ) {
1438                 fprintf( stderr, " tls_ssf=%u",
1439                         b->a_authz.sai_tls_ssf );
1440         }
1441         if ( b->a_authz.sai_sasl_ssf ) {
1442                 fprintf( stderr, " sasl_ssf=%u",
1443                         b->a_authz.sai_sasl_ssf );
1444         }
1445
1446         fprintf( stderr, " %s%s",
1447                 b->a_dn_self ? "self" : "",
1448                 accessmask2str( b->a_access_mask, maskbuf ) );
1449
1450         if( b->a_type == ACL_BREAK ) {
1451                 fprintf( stderr, " break" );
1452
1453         } else if( b->a_type == ACL_CONTINUE ) {
1454                 fprintf( stderr, " continue" );
1455
1456         } else if( b->a_type != ACL_STOP ) {
1457                 fprintf( stderr, " unknown-control" );
1458         }
1459
1460         fprintf( stderr, "\n" );
1461 }
1462
1463
1464 static void
1465 print_acl( Backend *be, AccessControl *a )
1466 {
1467         int             to = 0;
1468         Access  *b;
1469
1470         fprintf( stderr, "%s ACL: access to",
1471                 be == NULL ? "Global" : "Backend" );
1472
1473         if ( a->acl_dn_pat.bv_len != 0 ) {
1474                 to++;
1475                 fprintf( stderr, " dn.%s=%s\n",
1476                         style_strings[a->acl_dn_style], a->acl_dn_pat.bv_val );
1477         }
1478
1479         if ( a->acl_filter != NULL ) {
1480                 to++;
1481                 fprintf( stderr, " filter=" );
1482                 filter_print( a->acl_filter );
1483                 fprintf( stderr, "\n" );
1484         }
1485
1486         if ( a->acl_attrs != NULL ) {
1487                 int     first = 1;
1488                 AttributeName *an;
1489                 to++;
1490
1491                 fprintf( stderr, " attrs=" );
1492                 for ( an = a->acl_attrs; an; an=an->an_next ) {
1493                         if ( ! first ) {
1494                                 fprintf( stderr, "," );
1495                         }
1496                         fputs( an->an_name.bv_val, stderr );
1497                         first = 0;
1498                 }
1499                 fprintf(  stderr, "\n" );
1500         }
1501
1502         if( !to ) {
1503                 fprintf( stderr, " *\n" );
1504         }
1505
1506         for ( b = a->acl_access; b != NULL; b = b->a_next ) {
1507                 print_access( b );
1508         }
1509
1510         fprintf( stderr, "\n" );
1511 }
1512
1513 #endif /* LDAP_DEBUG */