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