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 1998-2002 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
 159                                                 if ( *right == '\0' ) {
 160                                                         /* empty regex should match empty DN */
 161                                                         a->acl_dn_style = ACL_STYLE_BASE;
 162                                                         ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 163
 164                                                 } else if ( strcmp(right, "*") == 0
 165                                                         || strcmp(right, ".*") == 0
 166                                                         || strcmp(right, ".*$") == 0
 167                                                         || strcmp(right, "^.*") == 0
 168                                                         || strcmp(right, "^.*$$") == 0
 169                                                         || strcmp(right, ".*$$") == 0
 170                                                         || strcmp(right, "^.*$$") == 0 )
 171                                                 {
 172                                                         a->acl_dn_pat.bv_val = ch_strdup( "*" );
 173                                                         a->acl_dn_pat.bv_len = sizeof("*")-1;
 174
 175                                                 } else {
 176                                                         a->acl_dn_pat.bv_val = right;
 177                                                         acl_regex_normalized_dn( &a->acl_dn_pat );
 178                                                 }
 179                                         } else if ( strcasecmp( style, "base" ) == 0 ) {
 180                                                 a->acl_dn_style = ACL_STYLE_BASE;
 181                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 182                                         } else if ( strcasecmp( style, "one" ) == 0 ) {
 183                                                 a->acl_dn_style = ACL_STYLE_ONE;
 184                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 185                                         } else if ( strcasecmp( style, "subtree" ) == 0 ) {
 186                                                 a->acl_dn_style = ACL_STYLE_SUBTREE;
 187                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 188                                         } else if ( strcasecmp( style, "children" ) == 0 ) {
 189                                                 a->acl_dn_style = ACL_STYLE_CHILDREN;
 190                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 191                                         } else {
 192                                                 fprintf( stderr,
 193         "%s: line %d: unknown dn style \"%s\" in to clause\n",
 194                                                     fname, lineno, style );
 195                                                 acl_usage();
 196                                         }
 197
 198                                         continue;
 199                                 }
 200
 201                                 if ( strcasecmp( left, "filter" ) == 0 ) {
 202                                         if ( (a->acl_filter = str2filter(
 203                                             right )) == NULL ) {
 204                                                 fprintf( stderr,
 205                                 "%s: line %d: bad filter \"%s\" in to clause\n",
 206                                                     fname, lineno, right );
 207                                                 acl_usage();
 208                                         }
 209
 210                                 } else if ( strncasecmp( left, "attr", 4 ) == 0 ) {
 211                                         a->acl_attrs = str2anlist( a->acl_attrs,
 212                                                 right, "," );
 213                                         if ( a->acl_attrs == NULL ) {
 214                                                 fprintf( stderr,
 215                                 "%s: line %d: unknown attr \"%s\" in to clause\n",
 216                                                     fname, lineno, right );
 217                                                 acl_usage();
 218                                         }
 219                                 } else {
 220                                         fprintf( stderr,
 221                                                 "%s: line %d: expecting <what> got \"%s\"\n",
 222                                             fname, lineno, left );
 223                                         acl_usage();
 224                                 }
 225                         }
 226
 227                         if ( a->acl_dn_pat.bv_len != 0 &&
 228                                 strcmp(a->acl_dn_pat.bv_val, "*") == 0)
 229                         {
 230                                 free( a->acl_dn_pat.bv_val );
 231                                 a->acl_dn_pat.bv_val = NULL;
 232                                 a->acl_dn_pat.bv_len = 0;
 233                         }
 234
 235                         if( a->acl_dn_pat.bv_len != 0 ) {
 236                                 if ( a->acl_dn_style != ACL_STYLE_REGEX ) {
 237                                         struct berval bv;
 238                                         dnNormalize2( NULL, &a->acl_dn_pat, &bv);
 239                                         free( a->acl_dn_pat.bv_val );
 240                                         a->acl_dn_pat = bv;
 241                                 } else {
 242                                         int e = regcomp( &a->acl_dn_re, a->acl_dn_pat.bv_val,
 243                                                 REG_EXTENDED | REG_ICASE );
 244                                         if ( e ) {
 245                                                 char buf[512];
 246                                                 regerror( e, &a->acl_dn_re, buf, sizeof(buf) );
 247                                                 fprintf( stderr, "%s: line %d: "
 248                                                         "regular expression \"%s\" bad because of %s\n",
 249                                                         fname, lineno, right, buf );
 250                                                 acl_usage();
 251                                         }
 252                                 }
 253                         }
 254
 255                 /* by clause - select who has what access to entries */
 256                 } else if ( strcasecmp( argv[i], "by" ) == 0 ) {
 257                         if ( a == NULL ) {
 258                                 fprintf( stderr,
 259                                         "%s: line %d: to clause required before by clause in access line\n",
 260                                     fname, lineno );
 261                                 acl_usage();
 262                         }
 263
 264                         /*
 265                          * by clause consists of <who> and <access>
 266                          */
 267
 268                         b = (Access *) ch_calloc( 1, sizeof(Access) );
 269
 270                         ACL_INVALIDATE( b->a_access_mask );
 271
 272                         if ( ++i == argc ) {
 273                                 fprintf( stderr,
 274                             "%s: line %d: premature eol: expecting <who>\n",
 275                                     fname, lineno );
 276                                 acl_usage();
 277                         }
 278
 279                         /* get <who> */
 280                         for ( ; i < argc; i++ ) {
 281                                 slap_style_t sty = ACL_STYLE_REGEX;
 282
 283                                 split( argv[i], '=', &left, &right );
 284                                 split( left, '.', &left, &style );
 285                                 if ( style == NULL || *style == '\0'
 286                                         || strcasecmp( style, "regex" ) == 0 )
 287                                 {
 288                                         sty = ACL_STYLE_REGEX;
 289                                 } else if ( strcasecmp( style, "exact" ) == 0 ) {
 290                                         sty = ACL_STYLE_EXACT;
 291                                 } else if ( strcasecmp( style, "base" ) == 0 ) {
 292                                         sty = ACL_STYLE_BASE;
 293                                 } else if ( strcasecmp( style, "one" ) == 0 ) {
 294                                         sty = ACL_STYLE_ONE;
 295                                 } else if ( strcasecmp( style, "subtree" ) == 0 ) {
 296                                         sty = ACL_STYLE_SUBTREE;
 297                                 } else if ( strcasecmp( style, "children" ) == 0 ) {
 298                                         sty = ACL_STYLE_CHILDREN;
 299                                 } else {
 300                                         fprintf( stderr,
 301                                                 "%s: line %d: unknown style \"%s\" in by clause\n",
 302                                             fname, lineno, style );
 303                                         acl_usage();
 304                                 }
 305
 306                                 if ( strcasecmp( argv[i], "*" ) == 0 ) {
 307                                         bv.bv_val = ch_strdup( "*" );
 308                                         bv.bv_len = 1;
 309
 310                                 } else if ( strcasecmp( argv[i], "anonymous" ) == 0 ) {
 311                                         ber_str2bv("anonymous",
 312                                                 sizeof("anonymous")-1,
 313                                                 1, &bv);
 314
 315                                 } else if ( strcasecmp( argv[i], "self" ) == 0 ) {
 316                                         ber_str2bv("self",
 317                                                 sizeof("self")-1,
 318                                                 1, &bv);
 319
 320                                 } else if ( strcasecmp( argv[i], "users" ) == 0 ) {
 321                                         ber_str2bv("users",
 322                                                 sizeof("users")-1,
 323                                                 1, &bv);
 324
 325                                 } else if ( strcasecmp( left, "dn" ) == 0 ) {
 326                                         if ( sty == ACL_STYLE_REGEX ) {
 327                                                 b->a_dn_style = ACL_STYLE_REGEX;
 328                                                 if( right == NULL ) {
 329                                                         /* no '=' */
 330                                                         ber_str2bv("users",
 331                                                                 sizeof("users")-1,
 332                                                                 1, &bv);
 333                                                 } else if (*right == '\0' ) {
 334                                                         /* dn="" */
 335                                                         ber_str2bv("anonymous",
 336                                                                 sizeof("anonymous")-1,
 337                                                                 1, &bv);
 338                                                 } else if ( strcmp( right, "*" ) == 0 ) {
 339                                                         /* dn=* */
 340                                                         /* any or users?  users for now */
 341                                                         ber_str2bv("users",
 342                                                                 sizeof("users")-1,
 343                                                                 1, &bv);
 344                                                 } else if ( strcmp( right, ".+" ) == 0
 345                                                         || strcmp( right, "^.+" ) == 0
 346                                                         || strcmp( right, ".+$" ) == 0
 347                                                         || strcmp( right, "^.+$" ) == 0
 348                                                         || strcmp( right, ".+$$" ) == 0
 349                                                         || strcmp( right, "^.+$$" ) == 0 )
 350                                                 {
 351                                                         ber_str2bv("users",
 352                                                                 sizeof("users")-1,
 353                                                                 1, &bv);
 354                                                 } else if ( strcmp( right, ".*" ) == 0
 355                                                         || strcmp( right, "^.*" ) == 0
 356                                                         || strcmp( right, ".*$" ) == 0
 357                                                         || strcmp( right, "^.*$" ) == 0
 358                                                         || strcmp( right, ".*$$" ) == 0
 359                                                         || strcmp( right, "^.*$$" ) == 0 )
 360                                                 {
 361                                                         ber_str2bv("*",
 362                                                                 sizeof("*")-1,
 363                                                                 1, &bv);
 364
 365                                                 } else {
 366                                                         bv.bv_val = right;
 367                                                         acl_regex_normalized_dn( &bv );
 368                                                         regtest(fname, lineno, bv.bv_val);
 369                                                 }
 370                                         } else if ( right == NULL || *right == '\0' ) {
 371                                                 fprintf( stderr,
 372                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 373                                                     fname, lineno, left );
 374                                                 acl_usage();
 375
 376                                         } else {
 377                                                 ber_str2bv( right, 0, 1, &bv );
 378                                         }
 379
 380                                 } else {
 381                                         bv.bv_val = NULL;
 382                                 }
 383
 384                                 if( bv.bv_val != NULL ) {
 385                                         if( b->a_dn_pat.bv_len != 0 ) {
 386                                                 fprintf( stderr,
 387                                                     "%s: line %d: dn pattern already specified.\n",
 388                                                     fname, lineno );
 389                                                 acl_usage();
 390                                         }
 391
 392                                         if ( sty != ACL_STYLE_REGEX ) {
 393                                                 dnNormalize2(NULL, &bv, &b->a_dn_pat);
 394                                                 free(bv.bv_val);
 395                                         } else {
 396                                                 b->a_dn_pat = bv;
 397                                         }
 398                                         b->a_dn_style = sty;
 399                                         continue;
 400                                 }
 401
 402                                 if ( strcasecmp( left, "dnattr" ) == 0 ) {
 403                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 404                                                 fprintf( stderr,
 405                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 406                                                         fname, lineno, left );
 407                                                 acl_usage();
 408                                         }
 409
 410                                         if( b->a_dn_at != NULL ) {
 411                                                 fprintf( stderr,
 412                                                         "%s: line %d: dnattr already specified.\n",
 413                                                         fname, lineno );
 414                                                 acl_usage();
 415                                         }
 416
 417                                         rc = slap_str2ad( right, &b->a_dn_at, &text );
 418
 419                                         if( rc != LDAP_SUCCESS ) {
 420                                                 fprintf( stderr,
 421                                                         "%s: line %d: dnattr \"%s\": %s\n",
 422                                                         fname, lineno, right, text );
 423                                                 acl_usage();
 424                                         }
 425
 426
 427                                         if( !is_at_syntax( b->a_dn_at->ad_type,
 428                                                 SLAPD_DN_SYNTAX ) &&
 429                                                 !is_at_syntax( b->a_dn_at->ad_type,
 430                                                 SLAPD_NAMEUID_SYNTAX ))
 431                                         {
 432                                                 fprintf( stderr,
 433                                                         "%s: line %d: dnattr \"%s\": "
 434                                                         "inappropriate syntax: %s\n",
 435                                                         fname, lineno, right,
 436                                                         b->a_dn_at->ad_type->sat_syntax_oid );
 437                                                 acl_usage();
 438                                         }
 439
 440                                         continue;
 441                                 }
 442
 443                                 if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 444                                         fprintf( stderr,
 445                                                 "%s: line %d: inappropriate style \"%s\" in by clause\n",
 446                                             fname, lineno, style );
 447                                         acl_usage();
 448                                 }
 449
 450                                 if ( strncasecmp( left, "group", sizeof("group")-1 ) == 0 ) {
 451                                         char *name = NULL;
 452                                         char *value = NULL;
 453
 454                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 455                                                 fprintf( stderr,
 456                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 457                                                         fname, lineno, left );
 458                                                 acl_usage();
 459                                         }
 460
 461                                         if( b->a_group_pat.bv_len ) {
 462                                                 fprintf( stderr,
 463                                                         "%s: line %d: group pattern already specified.\n",
 464                                                         fname, lineno );
 465                                                 acl_usage();
 466                                         }
 467
 468                                         /* format of string is "group/objectClassValue/groupAttrName" */
 469                                         if ((value = strchr(left, '/')) != NULL) {
 470                                                 *value++ = '\0';
 471                                                 if (*value
 472                                                         && (name = strchr(value, '/')) != NULL)
 473                                                 {
 474                                                         *name++ = '\0';
 475                                                 }
 476                                         }
 477
 478                                         b->a_group_style = sty;
 479                                         if (sty == ACL_STYLE_REGEX) {
 480                                                 bv.bv_val = right;
 481                                                 acl_regex_normalized_dn( &bv );
 482                                                 regtest(fname, lineno, bv.bv_val);
 483                                                 b->a_group_pat = bv;
 484                                         } else {
 485                                                 ber_str2bv( right, 0, 0, &bv );
 486                                                 dnNormalize2( NULL, &bv, &b->a_group_pat );
 487                                         }
 488
 489                                         if (value && *value) {
 490                                                 b->a_group_oc = oc_find( value );
 491                                                 *--value = '/';
 492
 493                                                 if( b->a_group_oc == NULL ) {
 494                                                         fprintf( stderr,
 495                                                                 "%s: line %d: group objectclass "
 496                                                                 "\"%s\" unknown\n",
 497                                                                 fname, lineno, value );
 498                                                         acl_usage();
 499                                                 }
 500                                         } else {
 501                                                 b->a_group_oc = oc_find(SLAPD_GROUP_CLASS);
 502
 503                                                 if( b->a_group_oc == NULL ) {
 504                                                         fprintf( stderr,
 505                                                                 "%s: line %d: group default objectclass "
 506                                                                 "\"%s\" unknown\n",
 507                                                                 fname, lineno, SLAPD_GROUP_CLASS );
 508                                                         acl_usage();
 509                                                 }
 510                                         }
 511
 512                                         if( is_object_subclass( b->a_group_oc,
 513                                                 slap_schema.si_oc_referral ) )
 514                                         {
 515                                                 fprintf( stderr,
 516                                                         "%s: line %d: group objectclass \"%s\" "
 517                                                         "is subclass of referral\n",
 518                                                         fname, lineno, value );
 519                                                 acl_usage();
 520                                         }
 521
 522                                         if( is_object_subclass( b->a_group_oc,
 523                                                 slap_schema.si_oc_alias ) )
 524                                         {
 525                                                 fprintf( stderr,
 526                                                         "%s: line %d: group objectclass \"%s\" "
 527                                                         "is subclass of alias\n",
 528                                                         fname, lineno, value );
 529                                                 acl_usage();
 530                                         }
 531
 532                                         if (name && *name) {
 533                                                 rc = slap_str2ad( name, &b->a_group_at, &text );
 534
 535                                                 if( rc != LDAP_SUCCESS ) {
 536                                                         fprintf( stderr,
 537                                                                 "%s: line %d: group \"%s\": %s\n",
 538                                                                 fname, lineno, right, text );
 539                                                         acl_usage();
 540                                                 }
 541                                                 *--name = '/';
 542                                         } else {
 543                                                 rc = slap_str2ad( SLAPD_GROUP_ATTR, &b->a_group_at, &text );
 544
 545                                                 if( rc != LDAP_SUCCESS ) {
 546                                                         fprintf( stderr,
 547                                                                 "%s: line %d: group \"%s\": %s\n",
 548                                                                 fname, lineno, SLAPD_GROUP_ATTR, text );
 549                                                         acl_usage();
 550                                                 }
 551                                         }
 552
 553                                         if( !is_at_syntax( b->a_group_at->ad_type,
 554                                                 SLAPD_DN_SYNTAX ) &&
 555                                             !is_at_syntax( b->a_group_at->ad_type,
 556                                                 SLAPD_NAMEUID_SYNTAX ) )
 557                                         {
 558                                                 fprintf( stderr,
 559                                                         "%s: line %d: group \"%s\": inappropriate syntax: %s\n",
 560                                                         fname, lineno, right,
 561                                                         b->a_group_at->ad_type->sat_syntax_oid );
 562                                                 acl_usage();
 563                                         }
 564
 565
 566                                         {
 567                                                 int rc;
 568                                                 struct berval vals[2];
 569
 570                                                 vals[0].bv_val = b->a_group_oc->soc_oid;
 571                                                 vals[0].bv_len = strlen(vals[0].bv_val);
 572                                                 vals[1].bv_val = NULL;
 573
 574
 575                                                 rc = oc_check_allowed( b->a_group_at->ad_type, vals, NULL );
 576
 577                                                 if( rc != 0 ) {
 578                                                         fprintf( stderr,
 579                                                                 "%s: line %d: group: \"%s\" not allowed by \"%s\"\n",
 580                                                                 fname, lineno,
 581                                                                 b->a_group_at->ad_cname.bv_val,
 582                                                                 b->a_group_oc->soc_oid );
 583                                                         acl_usage();
 584                                                 }
 585                                         }
 586                                         continue;
 587                                 }
 588
 589                                 if ( strcasecmp( left, "peername" ) == 0 ) {
 590                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 591                                                 fprintf( stderr,
 592                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 593                                                         fname, lineno, left );
 594                                                 acl_usage();
 595                                         }
 596
 597                                         if( b->a_peername_pat.bv_len ) {
 598                                                 fprintf( stderr,
 599                                                         "%s: line %d: peername pattern already specified.\n",
 600                                                         fname, lineno );
 601                                                 acl_usage();
 602                                         }
 603
 604                                         b->a_peername_style = sty;
 605                                         if (sty == ACL_STYLE_REGEX) {
 606                                                 bv.bv_val = right;
 607                                                 acl_regex_normalized_dn( &bv );
 608                                                 regtest(fname, lineno, bv.bv_val);
 609                                                 b->a_peername_pat = bv;
 610                                         } else {
 611                                                 ber_str2bv( right, 0, 1, &b->a_peername_pat );
 612                                         }
 613                                         continue;
 614                                 }
 615
 616                                 if ( strcasecmp( left, "sockname" ) == 0 ) {
 617                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 618                                                 fprintf( stderr,
 619                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 620                                                         fname, lineno, left );
 621                                                 acl_usage();
 622                                         }
 623
 624                                         if( b->a_sockname_pat.bv_len ) {
 625                                                 fprintf( stderr,
 626                                                         "%s: line %d: sockname pattern already specified.\n",
 627                                                         fname, lineno );
 628                                                 acl_usage();
 629                                         }
 630
 631                                         b->a_sockname_style = sty;
 632                                         if (sty == ACL_STYLE_REGEX) {
 633                                                 bv.bv_val = right;
 634                                                 acl_regex_normalized_dn( &bv );
 635                                                 regtest(fname, lineno, bv.bv_val);
 636                                                 b->a_sockname_pat = bv;
 637                                         } else {
 638                                                 ber_str2bv( right, 0, 1, &b->a_sockname_pat );
 639                                         }
 640                                         continue;
 641                                 }
 642
 643                                 if ( strcasecmp( left, "domain" ) == 0 ) {
 644                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 645                                                 fprintf( stderr,
 646                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 647                                                         fname, lineno, left );
 648                                                 acl_usage();
 649                                         }
 650
 651                                         if( b->a_domain_pat.bv_len ) {
 652                                                 fprintf( stderr,
 653                                                         "%s: line %d: domain pattern already specified.\n",
 654                                                         fname, lineno );
 655                                                 acl_usage();
 656                                         }
 657
 658                                         b->a_domain_style = sty;
 659                                         if (sty == ACL_STYLE_REGEX) {
 660                                                 bv.bv_val = right;
 661                                                 acl_regex_normalized_dn( &bv );
 662                                                 regtest(fname, lineno, bv.bv_val);
 663                                                 b->a_domain_pat = bv;
 664                                         } else {
 665                                                 ber_str2bv( right, 0, 1, &b->a_domain_pat );
 666                                         }
 667                                         continue;
 668                                 }
 669
 670                                 if ( strcasecmp( left, "sockurl" ) == 0 ) {
 671                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 672                                                 fprintf( stderr,
 673                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 674                                                         fname, lineno, left );
 675                                                 acl_usage();
 676                                         }
 677
 678                                         if( b->a_sockurl_pat.bv_len ) {
 679                                                 fprintf( stderr,
 680                                                         "%s: line %d: sockurl pattern already specified.\n",
 681                                                         fname, lineno );
 682                                                 acl_usage();
 683                                         }
 684
 685                                         b->a_sockurl_style = sty;
 686                                         if (sty == ACL_STYLE_REGEX) {
 687                                                 bv.bv_val = right;
 688                                                 acl_regex_normalized_dn( &bv );
 689                                                 regtest(fname, lineno, bv.bv_val);
 690                                                 b->a_sockurl_pat = bv;
 691                                         } else {
 692                                                 ber_str2bv( right, 0, 1, &b->a_sockurl_pat );
 693                                         }
 694                                         continue;
 695                                 }
 696
 697                                 if ( strcasecmp( left, "set" ) == 0 ) {
 698                                         if( b->a_set_pat.bv_len != 0 ) {
 699                                                 fprintf( stderr,
 700                                                         "%s: line %d: set attribute already specified.\n",
 701                                                         fname, lineno );
 702                                                 acl_usage();
 703                                         }
 704
 705                                         if ( right == NULL || *right == '\0' ) {
 706                                                 fprintf( stderr,
 707                                                         "%s: line %d: no set is defined\n",
 708                                                         fname, lineno );
 709                                                 acl_usage();
 710                                         }
 711
 712                                         b->a_set_style = sty;
 713                                         ber_str2bv( right, 0, 1, &b->a_set_pat );
 714
 715                                         continue;
 716                                 }
 717
 718 #ifdef SLAPD_ACI_ENABLED
 719                                 if ( strcasecmp( left, "aci" ) == 0 ) {
 720                                         if( b->a_aci_at != NULL ) {
 721                                                 fprintf( stderr,
 722                                                         "%s: line %d: aci attribute already specified.\n",
 723                                                         fname, lineno );
 724                                                 acl_usage();
 725                                         }
 726
 727                                         if ( right != NULL && *right != '\0' ) {
 728                                                 rc = slap_str2ad( right, &b->a_aci_at, &text );
 729
 730                                                 if( rc != LDAP_SUCCESS ) {
 731                                                         fprintf( stderr,
 732                                                                 "%s: line %d: aci \"%s\": %s\n",
 733                                                                 fname, lineno, right, text );
 734                                                         acl_usage();
 735                                                 }
 736
 737                                         } else {
 738                                                 b->a_aci_at = slap_schema.si_ad_aci;
 739                                         }
 740
 741                                         if( !is_at_syntax( b->a_aci_at->ad_type,
 742                                                 SLAPD_ACI_SYNTAX) )
 743                                         {
 744                                                 fprintf( stderr,
 745                                                         "%s: line %d: aci \"%s\": inappropriate syntax: %s\n",
 746                                                         fname, lineno, right,
 747                                                         b->a_aci_at->ad_type->sat_syntax_oid );
 748                                                 acl_usage();
 749                                         }
 750
 751                                         continue;
 752                                 }
 753 #endif /* SLAPD_ACI_ENABLED */
 754
 755                                 if ( strcasecmp( left, "ssf" ) == 0 ) {
 756                                         if( b->a_authz.sai_ssf ) {
 757                                                 fprintf( stderr,
 758                                                         "%s: line %d: ssf attribute already specified.\n",
 759                                                         fname, lineno );
 760                                                 acl_usage();
 761                                         }
 762
 763                                         if ( right == NULL || *right == '\0' ) {
 764                                                 fprintf( stderr,
 765                                                         "%s: line %d: no ssf is defined\n",
 766                                                         fname, lineno );
 767                                                 acl_usage();
 768                                         }
 769
 770                                         b->a_authz.sai_ssf = atoi( right );
 771
 772                                         if( !b->a_authz.sai_ssf ) {
 773                                                 fprintf( stderr,
 774                                                         "%s: line %d: invalid ssf value (%s)\n",
 775                                                         fname, lineno, right );
 776                                                 acl_usage();
 777                                         }
 778                                         continue;
 779                                 }
 780
 781                                 if ( strcasecmp( left, "transport_ssf" ) == 0 ) {
 782                                         if( b->a_authz.sai_transport_ssf ) {
 783                                                 fprintf( stderr,
 784                                                         "%s: line %d: transport_ssf attribute already specified.\n",
 785                                                         fname, lineno );
 786                                                 acl_usage();
 787                                         }
 788
 789                                         if ( right == NULL || *right == '\0' ) {
 790                                                 fprintf( stderr,
 791                                                         "%s: line %d: no transport_ssf is defined\n",
 792                                                         fname, lineno );
 793                                                 acl_usage();
 794                                         }
 795
 796                                         b->a_authz.sai_transport_ssf = atoi( right );
 797
 798                                         if( !b->a_authz.sai_transport_ssf ) {
 799                                                 fprintf( stderr,
 800                                                         "%s: line %d: invalid transport_ssf value (%s)\n",
 801                                                         fname, lineno, right );
 802                                                 acl_usage();
 803                                         }
 804                                         continue;
 805                                 }
 806
 807                                 if ( strcasecmp( left, "tls_ssf" ) == 0 ) {
 808                                         if( b->a_authz.sai_tls_ssf ) {
 809                                                 fprintf( stderr,
 810                                                         "%s: line %d: tls_ssf attribute already specified.\n",
 811                                                         fname, lineno );
 812                                                 acl_usage();
 813                                         }
 814
 815                                         if ( right == NULL || *right == '\0' ) {
 816                                                 fprintf( stderr,
 817                                                         "%s: line %d: no tls_ssf is defined\n",
 818                                                         fname, lineno );
 819                                                 acl_usage();
 820                                         }
 821
 822                                         b->a_authz.sai_tls_ssf = atoi( right );
 823
 824                                         if( !b->a_authz.sai_tls_ssf ) {
 825                                                 fprintf( stderr,
 826                                                         "%s: line %d: invalid tls_ssf value (%s)\n",
 827                                                         fname, lineno, right );
 828                                                 acl_usage();
 829                                         }
 830                                         continue;
 831                                 }
 832
 833                                 if ( strcasecmp( left, "sasl_ssf" ) == 0 ) {
 834                                         if( b->a_authz.sai_sasl_ssf ) {
 835                                                 fprintf( stderr,
 836                                                         "%s: line %d: sasl_ssf attribute already specified.\n",
 837                                                         fname, lineno );
 838                                                 acl_usage();
 839                                         }
 840
 841                                         if ( right == NULL || *right == '\0' ) {
 842                                                 fprintf( stderr,
 843                                                         "%s: line %d: no sasl_ssf is defined\n",
 844                                                         fname, lineno );
 845                                                 acl_usage();
 846                                         }
 847
 848                                         b->a_authz.sai_sasl_ssf = atoi( right );
 849
 850                                         if( !b->a_authz.sai_sasl_ssf ) {
 851                                                 fprintf( stderr,
 852                                                         "%s: line %d: invalid sasl_ssf value (%s)\n",
 853                                                         fname, lineno, right );
 854                                                 acl_usage();
 855                                         }
 856                                         continue;
 857                                 }
 858
 859                                 if( right != NULL ) {
 860                                         /* unsplit */
 861                                         right[-1] = '=';
 862                                 }
 863                                 break;
 864                         }
 865
 866                         if( i == argc || ( strcasecmp( left, "stop" ) == 0 )) {
 867                                 /* out of arguments or plain stop */
 868
 869                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
 870                                 b->a_type = ACL_STOP;
 871
 872                                 access_append( &a->acl_access, b );
 873                                 continue;
 874                         }
 875
 876                         if( strcasecmp( left, "continue" ) == 0 ) {
 877                                 /* plain continue */
 878
 879                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
 880                                 b->a_type = ACL_CONTINUE;
 881
 882                                 access_append( &a->acl_access, b );
 883                                 continue;
 884                         }
 885
 886                         if( strcasecmp( left, "break" ) == 0 ) {
 887                                 /* plain continue */
 888
 889                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
 890                                 b->a_type = ACL_BREAK;
 891
 892                                 access_append( &a->acl_access, b );
 893                                 continue;
 894                         }
 895
 896                         if ( strcasecmp( left, "by" ) == 0 ) {
 897                                 /* we've gone too far */
 898                                 --i;
 899                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
 900                                 b->a_type = ACL_STOP;
 901
 902                                 access_append( &a->acl_access, b );
 903                                 continue;
 904                         }
 905
 906                         /* get <access> */
 907                         if( strncasecmp( left, "self", 4 ) == 0 ) {
 908                                 b->a_dn_self = 1;
 909                                 ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( &left[4] ) );
 910
 911                         } else {
 912                                 ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( left ) );
 913                         }
 914
 915                         if( ACL_IS_INVALID( b->a_access_mask ) ) {
 916                                 fprintf( stderr,
 917                                         "%s: line %d: expecting <access> got \"%s\"\n",
 918                                         fname, lineno, left );
 919                                 acl_usage();
 920                         }
 921
 922                         b->a_type = ACL_STOP;
 923
 924                         if( ++i == argc ) {
 925                                 /* out of arguments or plain stop */
 926                                 access_append( &a->acl_access, b );
 927                                 continue;
 928                         }
 929
 930                         if( strcasecmp( argv[i], "continue" ) == 0 ) {
 931                                 /* plain continue */
 932                                 b->a_type = ACL_CONTINUE;
 933
 934                         } else if( strcasecmp( argv[i], "break" ) == 0 ) {
 935                                 /* plain continue */
 936                                 b->a_type = ACL_BREAK;
 937
 938                         } else if ( strcasecmp( argv[i], "stop" ) != 0 ) {
 939                                 /* gone to far */
 940                                 i--;
 941                         }
 942
 943                         access_append( &a->acl_access, b );
 944
 945                 } else {
 946                         fprintf( stderr,
 947                     "%s: line %d: expecting \"to\" or \"by\" got \"%s\"\n",
 948                             fname, lineno, argv[i] );
 949                         acl_usage();
 950                 }
 951         }
 952
 953         /* if we have no real access clause, complain and do nothing */
 954         if ( a == NULL ) {
 955                         fprintf( stderr,
 956                                 "%s: line %d: warning: no access clause(s) specified in access line\n",
 957                             fname, lineno );
 958
 959         } else {
 960 #ifdef LDAP_DEBUG
 961                 if (ldap_debug & LDAP_DEBUG_ACL)
 962                         print_acl(be, a);
 963 #endif
 964
 965                 if ( a->acl_access == NULL ) {
 966                         fprintf( stderr,
 967                         "%s: line %d: warning: no by clause(s) specified in access line\n",
 968                             fname, lineno );
 969                 }
 970
 971                 if ( be != NULL ) {
 972                         acl_append( &be->be_acl, a );
 973                 } else {
 974                         acl_append( &global_acl, a );
 975                 }
 976         }
 977 }
 978
 979 char *
 980 accessmask2str( slap_mask_t mask, char *buf )
 981 {
 982         int none=1;
 983         char *ptr = buf;
 984
 985         assert( buf != NULL );
 986
 987         if ( ACL_IS_INVALID( mask ) ) {
 988                 return "invalid";
 989         }
 990
 991         buf[0] = '\0';
 992
 993         if ( ACL_IS_LEVEL( mask ) ) {
 994                 if ( ACL_LVL_IS_NONE(mask) ) {
 995                         ptr = slap_strcopy( ptr, "none" );
 996
 997                 } else if ( ACL_LVL_IS_AUTH(mask) ) {
 998                         ptr = slap_strcopy( ptr, "auth" );
 999
1000                 } else if ( ACL_LVL_IS_COMPARE(mask) ) {
1001                         ptr = slap_strcopy( ptr, "compare" );
1002
1003                 } else if ( ACL_LVL_IS_SEARCH(mask) ) {
1004                         ptr = slap_strcopy( ptr, "search" );
1005
1006                 } else if ( ACL_LVL_IS_READ(mask) ) {
1007                         ptr = slap_strcopy( ptr, "read" );
1008
1009                 } else if ( ACL_LVL_IS_WRITE(mask) ) {
1010                         ptr = slap_strcopy( ptr, "write" );
1011                 } else {
1012                         ptr = slap_strcopy( ptr, "unknown" );
1013                 }
1014
1015                 *ptr++ = '(';
1016         }
1017
1018         if( ACL_IS_ADDITIVE( mask ) ) {
1019                 *ptr++ = '+';
1020
1021         } else if( ACL_IS_SUBTRACTIVE( mask ) ) {
1022                 *ptr++ = '-';
1023
1024         } else {
1025                 *ptr++ = '=';
1026         }
1027
1028         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_WRITE) ) {
1029                 none = 0;
1030                 *ptr++ = 'w';
1031         }
1032
1033         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_READ) ) {
1034                 none = 0;
1035                 *ptr++ = 'r';
1036         }
1037
1038         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_SEARCH) ) {
1039                 none = 0;
1040                 *ptr++ = 's';
1041         }
1042
1043         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_COMPARE) ) {
1044                 none = 0;
1045                 *ptr++ = 'c';
1046         }
1047
1048         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_AUTH) ) {
1049                 none = 0;
1050                 *ptr++ = 'x';
1051         }
1052
1053         if ( none && ACL_PRIV_ISSET(mask, ACL_PRIV_NONE) ) {
1054                 none = 0;
1055                 *ptr++ = 'n';
1056         }
1057
1058         if ( none ) {
1059                 *ptr++ = '0';
1060         }
1061
1062         if ( ACL_IS_LEVEL( mask ) ) {
1063                 *ptr++ = ')';
1064         }
1065
1066         *ptr = '\0';
1067
1068         return buf;
1069 }
1070
1071 slap_mask_t
1072 str2accessmask( const char *str )
1073 {
1074         slap_mask_t     mask;
1075
1076         if( !ASCII_ALPHA(str[0]) ) {
1077                 int i;
1078
1079                 if ( str[0] == '=' ) {
1080                         ACL_INIT(mask);
1081
1082                 } else if( str[0] == '+' ) {
1083                         ACL_PRIV_ASSIGN(mask, ACL_PRIV_ADDITIVE);
1084
1085                 } else if( str[0] == '-' ) {
1086                         ACL_PRIV_ASSIGN(mask, ACL_PRIV_SUBSTRACTIVE);
1087
1088                 } else {
1089                         ACL_INVALIDATE(mask);
1090                         return mask;
1091                 }
1092
1093                 for( i=1; str[i] != '\0'; i++ ) {
1094                         if( TOLOWER(str[i]) == 'w' ) {
1095                                 ACL_PRIV_SET(mask, ACL_PRIV_WRITE);
1096
1097                         } else if( TOLOWER(str[i]) == 'r' ) {
1098                                 ACL_PRIV_SET(mask, ACL_PRIV_READ);
1099
1100                         } else if( TOLOWER(str[i]) == 's' ) {
1101                                 ACL_PRIV_SET(mask, ACL_PRIV_SEARCH);
1102
1103                         } else if( TOLOWER(str[i]) == 'c' ) {
1104                                 ACL_PRIV_SET(mask, ACL_PRIV_COMPARE);
1105
1106                         } else if( TOLOWER(str[i]) == 'x' ) {
1107                                 ACL_PRIV_SET(mask, ACL_PRIV_AUTH);
1108
1109                         } else if( str[i] != '0' ) {
1110                                 ACL_INVALIDATE(mask);
1111                                 return mask;
1112                         }
1113                 }
1114
1115                 return mask;
1116         }
1117
1118         if ( strcasecmp( str, "none" ) == 0 ) {
1119                 ACL_LVL_ASSIGN_NONE(mask);
1120
1121         } else if ( strcasecmp( str, "auth" ) == 0 ) {
1122                 ACL_LVL_ASSIGN_AUTH(mask);
1123
1124         } else if ( strcasecmp( str, "compare" ) == 0 ) {
1125                 ACL_LVL_ASSIGN_COMPARE(mask);
1126
1127         } else if ( strcasecmp( str, "search" ) == 0 ) {
1128                 ACL_LVL_ASSIGN_SEARCH(mask);
1129
1130         } else if ( strcasecmp( str, "read" ) == 0 ) {
1131                 ACL_LVL_ASSIGN_READ(mask);
1132
1133         } else if ( strcasecmp( str, "write" ) == 0 ) {
1134                 ACL_LVL_ASSIGN_WRITE(mask);
1135
1136         } else {
1137                 ACL_INVALIDATE( mask );
1138         }
1139
1140         return mask;
1141 }
1142
1143 static void
1144 acl_usage( void )
1145 {
1146         fprintf( stderr, "\n"
1147                 "<access clause> ::= access to <what> "
1148                                 "[ by <who> <access> [ <control> ] ]+ \n"
1149                 "<what> ::= * | [dn[.<dnstyle>]=<regex>] [filter=<ldapfilter>] [attrs=<attrlist>]\n"
1150                 "<attrlist> ::= <attr> | <attr> , <attrlist>\n"
1151                 "<attr> ::= <attrname> | entry | children\n"
1152                 "<who> ::= [ * | anonymous | users | self | dn[.<dnstyle>]=<regex> ]\n"
1153                         "\t[dnattr=<attrname>]\n"
1154                         "\t[group[/<objectclass>[/<attrname>]][.<style>]=<regex>]\n"
1155                         "\t[peername[.<style>]=<regex>] [sockname[.<style>]=<regex>]\n"
1156                         "\t[domain[.<style>]=<regex>] [sockurl[.<style>]=<regex>]\n"
1157 #ifdef SLAPD_ACI_ENABLED
1158                         "\t[aci=<attrname>]\n"
1159 #endif
1160                         "\t[ssf=<n>] [transport_ssf=<n>] [tls_ssf=<n>] [sasl_ssf=<n>]\n"
1161                 "<dnstyle> ::= regex | base | exact (alias of base) | one | sub | children\n"
1162                 "<style> ::= regex | base | exact (alias of base)\n"
1163                 "<groupflags> ::= R\n"
1164                 "<access> ::= [self]{<level>|<priv>}\n"
1165                 "<level> ::= none | auth | compare | search | read | write\n"
1166                 "<priv> ::= {=|+|-}{w|r|s|c|x}+\n"
1167                 "<control> ::= [ stop | continue | break ]\n"
1168                 );
1169         exit( EXIT_FAILURE );
1170 }
1171
1172 /*
1173  * At present it simply eats the (optional) space after
1174  * a RDN separator (,)
1175  * Eventually will evolve in a more complete normalization
1176  *
1177  * Note that the input berval only needs bv_val, it ignores
1178  * the input bv_len and sets it on return.
1179  */
1180 static void
1181 acl_regex_normalized_dn(
1182         struct berval *pattern
1183 )
1184 {
1185         char *str, *p;
1186
1187         str = ch_strdup( pattern->bv_val );
1188
1189         for ( p = str; p && p[ 0 ]; p++ ) {
1190                 /* escape */
1191                 if ( p[ 0 ] == '\\' ) {
1192                         /*
1193                          * if escaping a hex pair we should
1194                          * increment p twice; however, in that
1195                          * case the second hex number does
1196                          * no harm
1197                          */
1198                         p++;
1199                 }
1200
1201                 if ( p[ 0 ] == ',' ) {
1202                         if ( p[ 1 ] == ' ' ) {
1203                                 char *q;
1204
1205                                 /*
1206                                  * too much space should be
1207                                  * an error if we are pedantic
1208                                  */
1209                                 for ( q = &p[ 2 ]; q[ 0 ] == ' '; q++ ) {
1210                                         /* DO NOTHING */ ;
1211                                 }
1212                                 AC_MEMCPY( p+1, q, pattern->bv_len-(q-str)+1);
1213                         }
1214                 }
1215         }
1216         pattern->bv_val = str;
1217         pattern->bv_len = p-str;
1218
1219         return;
1220 }
1221
1222 static void
1223 split(
1224     char        *line,
1225     int         splitchar,
1226     char        **left,
1227     char        **right
1228 )
1229 {
1230         *left = line;
1231         if ( (*right = strchr( line, splitchar )) != NULL ) {
1232                 *((*right)++) = '\0';
1233         }
1234 }
1235
1236 static void
1237 access_append( Access **l, Access *a )
1238 {
1239         for ( ; *l != NULL; l = &(*l)->a_next )
1240                 ;       /* NULL */
1241
1242         *l = a;
1243 }
1244
1245 void
1246 acl_append( AccessControl **l, AccessControl *a )
1247 {
1248         for ( ; *l != NULL; l = &(*l)->acl_next )
1249                 ;       /* NULL */
1250
1251         *l = a;
1252 }
1253
1254 static void
1255 access_free( Access *a )
1256 {
1257         if ( a->a_dn_pat.bv_val )
1258                 free ( a->a_dn_pat.bv_val );
1259         if ( a->a_peername_pat.bv_val )
1260                 free ( a->a_peername_pat.bv_val );
1261         if ( a->a_sockname_pat.bv_val )
1262                 free ( a->a_sockname_pat.bv_val );
1263         if ( a->a_domain_pat.bv_val )
1264                 free ( a->a_domain_pat.bv_val );
1265         if ( a->a_sockurl_pat.bv_val )
1266                 free ( a->a_sockurl_pat.bv_val );
1267         if ( a->a_set_pat.bv_len )
1268                 free ( a->a_set_pat.bv_val );
1269         if ( a->a_group_pat.bv_len )
1270                 free ( a->a_group_pat.bv_val );
1271         free( a );
1272 }
1273
1274 void
1275 acl_free( AccessControl *a )
1276 {
1277         Access *n;
1278         AttributeName *an;
1279
1280         if ( a->acl_filter )
1281                 filter_free( a->acl_filter );
1282         if ( a->acl_dn_pat.bv_len )
1283                 free ( a->acl_dn_pat.bv_val );
1284         if ( a->acl_attrs ) {
1285                 for ( an = a->acl_attrs; an->an_name.bv_val; an++ ) {
1286                         free( an->an_name.bv_val );
1287                 }
1288                 free( a->acl_attrs );
1289         }
1290         for (; a->acl_access; a->acl_access = n) {
1291                 n = a->acl_access->a_next;
1292                 access_free( a->acl_access );
1293         }
1294         free( a );
1295 }
1296
1297 /* Because backend_startup uses acl_append to tack on the global_acl to
1298  * the end of each backend's acl, we cannot just take one argument and
1299  * merrily free our way to the end of the list. backend_destroy calls us
1300  * with the be_acl in arg1, and global_acl in arg2 to give us a stopping
1301  * point. config_destroy calls us with global_acl in arg1 and NULL in
1302  * arg2, so we then proceed to polish off the global_acl.
1303  */
1304 void
1305 acl_destroy( AccessControl *a, AccessControl *end )
1306 {
1307         AccessControl *n;
1308
1309         for (; a && a!= end; a=n) {
1310                 n = a->acl_next;
1311                 acl_free( a );
1312         }
1313 }
1314
1315 char *
1316 access2str( slap_access_t access )
1317 {
1318         if ( access == ACL_NONE ) {
1319                 return "none";
1320
1321         } else if ( access == ACL_AUTH ) {
1322                 return "auth";
1323
1324         } else if ( access == ACL_COMPARE ) {
1325                 return "compare";
1326
1327         } else if ( access == ACL_SEARCH ) {
1328                 return "search";
1329
1330         } else if ( access == ACL_READ ) {
1331                 return "read";
1332
1333         } else if ( access == ACL_WRITE ) {
1334                 return "write";
1335         }
1336
1337         return "unknown";
1338 }
1339
1340 slap_access_t
1341 str2access( const char *str )
1342 {
1343         if ( strcasecmp( str, "none" ) == 0 ) {
1344                 return ACL_NONE;
1345
1346         } else if ( strcasecmp( str, "auth" ) == 0 ) {
1347                 return ACL_AUTH;
1348
1349         } else if ( strcasecmp( str, "compare" ) == 0 ) {
1350                 return ACL_COMPARE;
1351
1352         } else if ( strcasecmp( str, "search" ) == 0 ) {
1353                 return ACL_SEARCH;
1354
1355         } else if ( strcasecmp( str, "read" ) == 0 ) {
1356                 return ACL_READ;
1357
1358         } else if ( strcasecmp( str, "write" ) == 0 ) {
1359                 return ACL_WRITE;
1360         }
1361
1362         return( ACL_INVALID_ACCESS );
1363 }
1364
1365 #ifdef LDAP_DEBUG
1366
1367 static char *style_strings[5] = {
1368                         "regex",
1369                         "base",
1370                         "one",
1371                         "subtree",
1372                         "children"
1373                 };
1374
1375
1376 static void
1377 print_access( Access *b )
1378 {
1379         char maskbuf[ACCESSMASK_MAXLEN];
1380
1381         fprintf( stderr, "\tby" );
1382
1383         if ( b->a_dn_pat.bv_len != 0 ) {
1384                 if( strcmp(b->a_dn_pat.bv_val, "*") == 0
1385                         || strcmp(b->a_dn_pat.bv_val, "users") == 0
1386                         || strcmp(b->a_dn_pat.bv_val, "anonymous") == 0
1387                         || strcmp(b->a_dn_pat.bv_val, "self") == 0 )
1388                 {
1389                         fprintf( stderr, " %s", b->a_dn_pat.bv_val );
1390
1391                 } else {
1392                         fprintf( stderr, " dn.%s=%s",
1393                                 style_strings[b->a_dn_style], b->a_dn_pat.bv_val );
1394                 }
1395         }
1396
1397         if ( b->a_dn_at != NULL ) {
1398                 fprintf( stderr, " dnattr=%s", b->a_dn_at->ad_cname.bv_val );
1399         }
1400
1401         if ( b->a_group_pat.bv_len ) {
1402                 fprintf( stderr, " group=%s", b->a_group_pat.bv_val );
1403
1404                 if ( b->a_group_oc ) {
1405                         fprintf( stderr, " objectClass: %s",
1406                                 b->a_group_oc->soc_oclass.oc_oid );
1407
1408                         if ( b->a_group_at ) {
1409                                 fprintf( stderr, " attributeType: %s", b->a_group_at->ad_cname.bv_val );
1410                         }
1411                 }
1412     }
1413
1414         if ( b->a_peername_pat.bv_len != 0 ) {
1415                 fprintf( stderr, " peername=%s", b->a_peername_pat.bv_val );
1416         }
1417
1418         if ( b->a_sockname_pat.bv_len != 0 ) {
1419                 fprintf( stderr, " sockname=%s", b->a_sockname_pat.bv_val );
1420         }
1421
1422         if ( b->a_domain_pat.bv_len != 0 ) {
1423                 fprintf( stderr, " domain=%s", b->a_domain_pat.bv_val );
1424         }
1425
1426         if ( b->a_sockurl_pat.bv_len != 0 ) {
1427                 fprintf( stderr, " sockurl=%s", b->a_sockurl_pat.bv_val );
1428         }
1429
1430 #ifdef SLAPD_ACI_ENABLED
1431         if ( b->a_aci_at != NULL ) {
1432                 fprintf( stderr, " aci=%s", b->a_aci_at->ad_cname.bv_val );
1433         }
1434 #endif
1435
1436         /* Security Strength Factors */
1437         if ( b->a_authz.sai_ssf ) {
1438                 fprintf( stderr, " ssf=%u",
1439                         b->a_authz.sai_ssf );
1440         }
1441         if ( b->a_authz.sai_transport_ssf ) {
1442                 fprintf( stderr, " transport_ssf=%u",
1443                         b->a_authz.sai_transport_ssf );
1444         }
1445         if ( b->a_authz.sai_tls_ssf ) {
1446                 fprintf( stderr, " tls_ssf=%u",
1447                         b->a_authz.sai_tls_ssf );
1448         }
1449         if ( b->a_authz.sai_sasl_ssf ) {
1450                 fprintf( stderr, " sasl_ssf=%u",
1451                         b->a_authz.sai_sasl_ssf );
1452         }
1453
1454         fprintf( stderr, " %s%s",
1455                 b->a_dn_self ? "self" : "",
1456                 accessmask2str( b->a_access_mask, maskbuf ) );
1457
1458         if( b->a_type == ACL_BREAK ) {
1459                 fprintf( stderr, " break" );
1460
1461         } else if( b->a_type == ACL_CONTINUE ) {
1462                 fprintf( stderr, " continue" );
1463
1464         } else if( b->a_type != ACL_STOP ) {
1465                 fprintf( stderr, " unknown-control" );
1466         }
1467
1468         fprintf( stderr, "\n" );
1469 }
1470
1471
1472 static void
1473 print_acl( Backend *be, AccessControl *a )
1474 {
1475         int             to = 0;
1476         Access  *b;
1477
1478         fprintf( stderr, "%s ACL: access to",
1479                 be == NULL ? "Global" : "Backend" );
1480
1481         if ( a->acl_dn_pat.bv_len != 0 ) {
1482                 to++;
1483                 fprintf( stderr, " dn.%s=%s\n",
1484                         style_strings[a->acl_dn_style], a->acl_dn_pat.bv_val );
1485         }
1486
1487         if ( a->acl_filter != NULL ) {
1488                 to++;
1489                 fprintf( stderr, " filter=" );
1490                 filter_print( a->acl_filter );
1491                 fprintf( stderr, "\n" );
1492         }
1493
1494         if ( a->acl_attrs != NULL ) {
1495                 int     first = 1;
1496                 AttributeName *an;
1497                 to++;
1498
1499                 fprintf( stderr, " attrs=" );
1500                 for ( an = a->acl_attrs; an && an->an_name.bv_val; an++ ) {
1501                         if ( ! first ) {
1502                                 fprintf( stderr, "," );
1503                         }
1504                         fputs( an->an_name.bv_val, stderr );
1505                         first = 0;
1506                 }
1507                 fprintf(  stderr, "\n" );
1508         }
1509
1510         if( !to ) {
1511                 fprintf( stderr, " *\n" );
1512         }
1513
1514         for ( b = a->acl_access; b != NULL; b = b->a_next ) {
1515                 print_access( b );
1516         }
1517
1518         fprintf( stderr, "\n" );
1519 }
1520
1521 #endif /* LDAP_DEBUG */