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