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 #include "lber_pvt.h"
  20
  21 static void             split(char *line, int splitchar, char **left, char **right);
  22 static void             access_append(Access **l, Access *a);
  23 static void             acl_usage(void) LDAP_GCCATTR((noreturn));
  24
  25 static void             acl_regex_normalized_dn(const char *src, struct berval *pat);
  26
  27 #ifdef LDAP_DEBUG
  28 static void             print_acl(Backend *be, AccessControl *a);
  29 static void             print_access(Access *b);
  30 #endif
  31
  32 static void
  33 regtest(const char *fname, int lineno, char *pat) {
  34         int e;
  35         regex_t re;
  36
  37         char buf[512];
  38         unsigned size;
  39
  40         char *sp;
  41         char *dp;
  42         int  flag;
  43
  44         sp = pat;
  45         dp = buf;
  46         size = 0;
  47         buf[0] = '\0';
  48
  49         for (size = 0, flag = 0; (size < sizeof(buf)) && *sp; sp++) {
  50                 if (flag) {
  51                         if (*sp == '$'|| (*sp >= '0' && *sp <= '9')) {
  52                                 *dp++ = *sp;
  53                                 size++;
  54                         }
  55                         flag = 0;
  56
  57                 } else {
  58                         if (*sp == '$') {
  59                                 flag = 1;
  60                         } else {
  61                                 *dp++ = *sp;
  62                                 size++;
  63                         }
  64                 }
  65         }
  66
  67         *dp = '\0';
  68         if ( size >= (sizeof(buf)-1) ) {
  69                 fprintf( stderr,
  70                         "%s: line %d: regular expression \"%s\" too large\n",
  71                         fname, lineno, pat );
  72                 acl_usage();
  73         }
  74
  75         if ((e = regcomp(&re, buf, REG_EXTENDED|REG_ICASE))) {
  76                 char error[512];
  77                 regerror(e, &re, error, sizeof(error));
  78                 fprintf( stderr,
  79                         "%s: line %d: regular expression \"%s\" bad because of %s\n",
  80                         fname, lineno, pat, error );
  81                 acl_usage();
  82         }
  83         regfree(&re);
  84 }
  85
  86 void
  87 parse_acl(
  88     Backend     *be,
  89     const char  *fname,
  90     int         lineno,
  91     int         argc,
  92     char        **argv
  93 )
  94 {
  95         int             i;
  96         char            *left, *right, *style;
  97         struct berval   bv;
  98         AccessControl   *a;
  99         Access  *b;
 100         int rc;
 101         const char *text;
 102
 103         a = NULL;
 104         for ( i = 1; i < argc; i++ ) {
 105                 /* to clause - select which entries are protected */
 106                 if ( strcasecmp( argv[i], "to" ) == 0 ) {
 107                         if ( a != NULL ) {
 108                                 fprintf( stderr,
 109                 "%s: line %d: only one to clause allowed in access line\n",
 110                                     fname, lineno );
 111                                 acl_usage();
 112                         }
 113                         a = (AccessControl *) ch_calloc( 1, sizeof(AccessControl) );
 114                         for ( ++i; i < argc; i++ ) {
 115                                 if ( strcasecmp( argv[i], "by" ) == 0 ) {
 116                                         i--;
 117                                         break;
 118                                 }
 119
 120                                 if ( strcasecmp( argv[i], "*" ) == 0 ) {
 121                                         if( a->acl_dn_pat.bv_len != 0 ) {
 122                                                 fprintf( stderr,
 123                                                         "%s: line %d: dn pattern"
 124                                                         " already specified in to clause.\n",
 125                                                         fname, lineno );
 126                                                 acl_usage();
 127                                         }
 128
 129                                         a->acl_dn_pat.bv_val = ch_strdup( "*" );
 130                                         a->acl_dn_pat.bv_len = 1;
 131                                         continue;
 132                                 }
 133
 134                                 split( argv[i], '=', &left, &right );
 135                                 split( left, '.', &left, &style );
 136
 137                                 if ( right == NULL ) {
 138                                         fprintf( stderr,
 139         "%s: line %d: missing \"=\" in \"%s\" in to clause\n",
 140                                             fname, lineno, left );
 141                                         acl_usage();
 142                                 }
 143
 144                                 if ( strcasecmp( left, "dn" ) == 0 ) {
 145                                         if( a->acl_dn_pat.bv_len != 0 ) {
 146                                                 fprintf( stderr,
 147                                                         "%s: line %d: dn pattern"
 148                                                         " already specified in to clause.\n",
 149                                                         fname, lineno );
 150                                                 acl_usage();
 151                                         }
 152
 153                                         if ( style == NULL || *style == '\0'
 154                                                 || strcasecmp( style, "regex" ) == 0 )
 155                                         {
 156                                                 a->acl_dn_style = ACL_STYLE_REGEX;
 157
 158                                                 if ( *right == '\0' ) {
 159                                                         /* empty regex should match empty DN */
 160                                                         a->acl_dn_style = ACL_STYLE_BASE;
 161                                                         ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 162
 163                                                 } else if ( strcmp(right, "*") == 0
 164                                                         || strcmp(right, ".*") == 0
 165                                                         || strcmp(right, ".*$") == 0
 166                                                         || strcmp(right, "^.*") == 0
 167                                                         || strcmp(right, "^.*$") == 0
 168                                                         || strcmp(right, ".*$$") == 0
 169                                                         || strcmp(right, "^.*$$") == 0 )
 170                                                 {
 171                                                         a->acl_dn_pat.bv_val = ch_strdup( "*" );
 172                                                         a->acl_dn_pat.bv_len = sizeof("*")-1;
 173
 174                                                 } else {
 175                                                         acl_regex_normalized_dn( right, &a->acl_dn_pat );
 176                                                 }
 177                                         } else if ( strcasecmp( style, "base" ) == 0 ) {
 178                                                 a->acl_dn_style = ACL_STYLE_BASE;
 179                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 180                                         } else if ( strcasecmp( style, "one" ) == 0 ) {
 181                                                 a->acl_dn_style = ACL_STYLE_ONE;
 182                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 183                                         } else if ( strcasecmp( style, "subtree" ) == 0 ) {
 184                                                 a->acl_dn_style = ACL_STYLE_SUBTREE;
 185                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 186                                         } else if ( strcasecmp( style, "children" ) == 0 ) {
 187                                                 a->acl_dn_style = ACL_STYLE_CHILDREN;
 188                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 189                                         } else {
 190                                                 fprintf( stderr,
 191         "%s: line %d: unknown dn style \"%s\" in to clause\n",
 192                                                     fname, lineno, style );
 193                                                 acl_usage();
 194                                         }
 195
 196                                         continue;
 197                                 }
 198
 199                                 if ( strcasecmp( left, "filter" ) == 0 ) {
 200                                         if ( (a->acl_filter = str2filter(
 201                                             right )) == NULL ) {
 202                                                 fprintf( stderr,
 203                                 "%s: line %d: bad filter \"%s\" in to clause\n",
 204                                                     fname, lineno, right );
 205                                                 acl_usage();
 206                                         }
 207
 208                                 } else if ( strncasecmp( left, "attr", 4 ) == 0 ) {
 209                                         a->acl_attrs = str2anlist( a->acl_attrs,
 210                                                 right, "," );
 211                                         if ( a->acl_attrs == NULL ) {
 212                                                 fprintf( stderr,
 213                                 "%s: line %d: unknown attr \"%s\" in to clause\n",
 214                                                     fname, lineno, right );
 215                                                 acl_usage();
 216                                         }
 217                                 } else {
 218                                         fprintf( stderr,
 219                                                 "%s: line %d: expecting <what> got \"%s\"\n",
 220                                             fname, lineno, left );
 221                                         acl_usage();
 222                                 }
 223                         }
 224
 225                         if ( a->acl_dn_pat.bv_len != 0 &&
 226                                 strcmp(a->acl_dn_pat.bv_val, "*") == 0)
 227                         {
 228                                 free( a->acl_dn_pat.bv_val );
 229                                 a->acl_dn_pat.bv_val = NULL;
 230                                 a->acl_dn_pat.bv_len = 0;
 231                         }
 232
 233                         if( a->acl_dn_pat.bv_len != 0 ) {
 234                                 if ( a->acl_dn_style != ACL_STYLE_REGEX ) {
 235                                         struct berval bv;
 236                                         rc = dnNormalize2( NULL, &a->acl_dn_pat, &bv);
 237                                         if ( rc != LDAP_SUCCESS ) {
 238                                                 fprintf( stderr,
 239                                                         "%s: line %d: bad DN \"%s\"\n",
 240                                                         fname, lineno, a->acl_dn_pat.bv_val );
 241                                                 acl_usage();
 242                                         }
 243                                         free( a->acl_dn_pat.bv_val );
 244                                         a->acl_dn_pat = bv;
 245                                 } else {
 246                                         int e = regcomp( &a->acl_dn_re, a->acl_dn_pat.bv_val,
 247                                                 REG_EXTENDED | REG_ICASE );
 248                                         if ( e ) {
 249                                                 char buf[512];
 250                                                 regerror( e, &a->acl_dn_re, buf, sizeof(buf) );
 251                                                 fprintf( stderr, "%s: line %d: "
 252                                                         "regular expression \"%s\" bad because of %s\n",
 253                                                         fname, lineno, right, buf );
 254                                                 acl_usage();
 255                                         }
 256                                 }
 257                         }
 258
 259                 /* by clause - select who has what access to entries */
 260                 } else if ( strcasecmp( argv[i], "by" ) == 0 ) {
 261                         if ( a == NULL ) {
 262                                 fprintf( stderr,
 263                                         "%s: line %d: to clause required before by clause in access line\n",
 264                                     fname, lineno );
 265                                 acl_usage();
 266                         }
 267
 268                         /*
 269                          * by clause consists of <who> and <access>
 270                          */
 271
 272                         b = (Access *) ch_calloc( 1, sizeof(Access) );
 273
 274                         ACL_INVALIDATE( b->a_access_mask );
 275
 276                         if ( ++i == argc ) {
 277                                 fprintf( stderr,
 278                             "%s: line %d: premature eol: expecting <who>\n",
 279                                     fname, lineno );
 280                                 acl_usage();
 281                         }
 282
 283                         /* get <who> */
 284                         for ( ; i < argc; i++ ) {
 285                                 slap_style_t sty = ACL_STYLE_REGEX;
 286                                 char *style_modifier = NULL;
 287                                 int expand = 0;
 288
 289                                 split( argv[i], '=', &left, &right );
 290                                 split( left, '.', &left, &style );
 291                                 if ( style ) {
 292                                         split( style, ',', &style, &style_modifier);
 293                                 }
 294                                 if ( style == NULL || *style == '\0'
 295                                         || strcasecmp( style, "regex" ) == 0 )
 296                                 {
 297                                         sty = ACL_STYLE_REGEX;
 298                                 } else if ( strcasecmp( style, "exact" ) == 0 ) {
 299                                         sty = ACL_STYLE_EXACT;
 300                                 } else if ( strcasecmp( style, "base" ) == 0 ) {
 301                                         sty = ACL_STYLE_BASE;
 302                                 } else if ( strcasecmp( style, "one" ) == 0 ) {
 303                                         sty = ACL_STYLE_ONE;
 304                                 } else if ( strcasecmp( style, "subtree" ) == 0 ) {
 305                                         sty = ACL_STYLE_SUBTREE;
 306                                 } else if ( strcasecmp( style, "children" ) == 0 ) {
 307                                         sty = ACL_STYLE_CHILDREN;
 308                                 } else {
 309                                         fprintf( stderr,
 310                                                 "%s: line %d: unknown style \"%s\" in by clause\n",
 311                                             fname, lineno, style );
 312                                         acl_usage();
 313                                 }
 314
 315                                 if ( style_modifier && strcasecmp( style_modifier, "expand" ) == 0 ) {
 316                                         expand = 1;
 317                                 }
 318
 319                                 if ( strcasecmp( argv[i], "*" ) == 0 ) {
 320                                         bv.bv_val = ch_strdup( "*" );
 321                                         bv.bv_len = 1;
 322
 323                                 } else if ( strcasecmp( argv[i], "anonymous" ) == 0 ) {
 324                                         ber_str2bv("anonymous",
 325                                                 sizeof("anonymous")-1,
 326                                                 1, &bv);
 327
 328                                 } else if ( strcasecmp( argv[i], "self" ) == 0 ) {
 329                                         ber_str2bv("self",
 330                                                 sizeof("self")-1,
 331                                                 1, &bv);
 332
 333                                 } else if ( strcasecmp( argv[i], "users" ) == 0 ) {
 334                                         ber_str2bv("users",
 335                                                 sizeof("users")-1,
 336                                                 1, &bv);
 337
 338                                 } else if ( strcasecmp( left, "dn" ) == 0 ) {
 339                                         if ( sty == ACL_STYLE_REGEX ) {
 340                                                 b->a_dn_style = ACL_STYLE_REGEX;
 341                                                 if( right == NULL ) {
 342                                                         /* no '=' */
 343                                                         ber_str2bv("users",
 344                                                                 sizeof("users")-1,
 345                                                                 1, &bv);
 346                                                 } else if (*right == '\0' ) {
 347                                                         /* dn="" */
 348                                                         ber_str2bv("anonymous",
 349                                                                 sizeof("anonymous")-1,
 350                                                                 1, &bv);
 351                                                 } else if ( strcmp( right, "*" ) == 0 ) {
 352                                                         /* dn=* */
 353                                                         /* any or users?  users for now */
 354                                                         ber_str2bv("users",
 355                                                                 sizeof("users")-1,
 356                                                                 1, &bv);
 357                                                 } else if ( strcmp( right, ".+" ) == 0
 358                                                         || strcmp( right, "^.+" ) == 0
 359                                                         || strcmp( right, ".+$" ) == 0
 360                                                         || strcmp( right, "^.+$" ) == 0
 361                                                         || strcmp( right, ".+$$" ) == 0
 362                                                         || strcmp( right, "^.+$$" ) == 0 )
 363                                                 {
 364                                                         ber_str2bv("users",
 365                                                                 sizeof("users")-1,
 366                                                                 1, &bv);
 367                                                 } else if ( strcmp( right, ".*" ) == 0
 368                                                         || strcmp( right, "^.*" ) == 0
 369                                                         || strcmp( right, ".*$" ) == 0
 370                                                         || strcmp( right, "^.*$" ) == 0
 371                                                         || strcmp( right, ".*$$" ) == 0
 372                                                         || strcmp( right, "^.*$$" ) == 0 )
 373                                                 {
 374                                                         ber_str2bv("*",
 375                                                                 sizeof("*")-1,
 376                                                                 1, &bv);
 377
 378                                                 } else {
 379                                                         acl_regex_normalized_dn( right, &bv );
 380                                                         if ( !ber_bvccmp( &bv, '*' ) ) {
 381                                                                 regtest(fname, lineno, bv.bv_val);
 382                                                         }
 383                                                 }
 384                                         } else if ( right == NULL || *right == '\0' ) {
 385                                                 fprintf( stderr,
 386                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 387                                                     fname, lineno, left );
 388                                                 acl_usage();
 389
 390                                         } else {
 391                                                 ber_str2bv( right, 0, 1, &bv );
 392                                         }
 393
 394                                 } else {
 395                                         bv.bv_val = NULL;
 396                                 }
 397
 398                                 if( bv.bv_val != NULL ) {
 399                                         if( b->a_dn_pat.bv_len != 0 ) {
 400                                                 fprintf( stderr,
 401                                                     "%s: line %d: dn pattern already specified.\n",
 402                                                     fname, lineno );
 403                                                 acl_usage();
 404                                         }
 405
 406                                         if ( sty != ACL_STYLE_REGEX && expand == 0 ) {
 407                                                 rc = dnNormalize2(NULL, &bv, &b->a_dn_pat);
 408                                                 if ( rc != LDAP_SUCCESS ) {
 409                                                         fprintf( stderr,
 410                                                                 "%s: line %d: bad DN \"%s\"\n",
 411                                                                 fname, lineno, bv.bv_val );
 412                                                         acl_usage();
 413                                                 }
 414                                                 free(bv.bv_val);
 415                                         } else {
 416                                                 b->a_dn_pat = bv;
 417                                         }
 418                                         b->a_dn_style = sty;
 419                                         b->a_dn_expand = expand;
 420                                         continue;
 421                                 }
 422
 423                                 if ( strcasecmp( left, "dnattr" ) == 0 ) {
 424                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 425                                                 fprintf( stderr,
 426                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 427                                                         fname, lineno, left );
 428                                                 acl_usage();
 429                                         }
 430
 431                                         if( b->a_dn_at != NULL ) {
 432                                                 fprintf( stderr,
 433                                                         "%s: line %d: dnattr already specified.\n",
 434                                                         fname, lineno );
 435                                                 acl_usage();
 436                                         }
 437
 438                                         rc = slap_str2ad( right, &b->a_dn_at, &text );
 439
 440                                         if( rc != LDAP_SUCCESS ) {
 441                                                 fprintf( stderr,
 442                                                         "%s: line %d: dnattr \"%s\": %s\n",
 443                                                         fname, lineno, right, text );
 444                                                 acl_usage();
 445                                         }
 446
 447
 448                                         if( !is_at_syntax( b->a_dn_at->ad_type,
 449                                                 SLAPD_DN_SYNTAX ) &&
 450                                                 !is_at_syntax( b->a_dn_at->ad_type,
 451                                                 SLAPD_NAMEUID_SYNTAX ))
 452                                         {
 453                                                 fprintf( stderr,
 454                                                         "%s: line %d: dnattr \"%s\": "
 455                                                         "inappropriate syntax: %s\n",
 456                                                         fname, lineno, right,
 457                                                         b->a_dn_at->ad_type->sat_syntax_oid );
 458                                                 acl_usage();
 459                                         }
 460
 461                                         continue;
 462                                 }
 463
 464                                 if ( strncasecmp( left, "group", sizeof("group")-1 ) == 0 ) {
 465                                         char *name = NULL;
 466                                         char *value = NULL;
 467
 468                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 469                                                 fprintf( stderr,
 470                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 471                                                     fname, lineno, style );
 472                                                 acl_usage();
 473                                         }
 474
 475                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 476                                                 fprintf( stderr,
 477                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 478                                                         fname, lineno, left );
 479                                                 acl_usage();
 480                                         }
 481
 482                                         if( b->a_group_pat.bv_len ) {
 483                                                 fprintf( stderr,
 484                                                         "%s: line %d: group pattern already specified.\n",
 485                                                         fname, lineno );
 486                                                 acl_usage();
 487                                         }
 488
 489                                         /* format of string is "group/objectClassValue/groupAttrName" */
 490                                         if ((value = strchr(left, '/')) != NULL) {
 491                                                 *value++ = '\0';
 492                                                 if (*value
 493                                                         && (name = strchr(value, '/')) != NULL)
 494                                                 {
 495                                                         *name++ = '\0';
 496                                                 }
 497                                         }
 498
 499                                         b->a_group_style = sty;
 500                                         if (sty == ACL_STYLE_REGEX) {
 501                                                 acl_regex_normalized_dn( right, &bv );
 502                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 503                                                         regtest(fname, lineno, bv.bv_val);
 504                                                 }
 505                                                 b->a_group_pat = bv;
 506                                         } else {
 507                                                 ber_str2bv( right, 0, 0, &bv );
 508                                                 rc = dnNormalize2( NULL, &bv, &b->a_group_pat );
 509                                                 if ( rc != LDAP_SUCCESS ) {
 510                                                         fprintf( stderr,
 511                                                                 "%s: line %d: bad DN \"%s\"\n",
 512                                                                 fname, lineno, right );
 513                                                         acl_usage();
 514                                                 }
 515                                         }
 516
 517                                         if (value && *value) {
 518                                                 b->a_group_oc = oc_find( value );
 519                                                 *--value = '/';
 520
 521                                                 if( b->a_group_oc == NULL ) {
 522                                                         fprintf( stderr,
 523                                                                 "%s: line %d: group objectclass "
 524                                                                 "\"%s\" unknown\n",
 525                                                                 fname, lineno, value );
 526                                                         acl_usage();
 527                                                 }
 528                                         } else {
 529                                                 b->a_group_oc = oc_find(SLAPD_GROUP_CLASS);
 530
 531                                                 if( b->a_group_oc == NULL ) {
 532                                                         fprintf( stderr,
 533                                                                 "%s: line %d: group default objectclass "
 534                                                                 "\"%s\" unknown\n",
 535                                                                 fname, lineno, SLAPD_GROUP_CLASS );
 536                                                         acl_usage();
 537                                                 }
 538                                         }
 539
 540                                         if( is_object_subclass( slap_schema.si_oc_referral,
 541                                                 b->a_group_oc ))
 542                                         {
 543                                                 fprintf( stderr,
 544                                                         "%s: line %d: group objectclass \"%s\" "
 545                                                         "is subclass of referral\n",
 546                                                         fname, lineno, value );
 547                                                 acl_usage();
 548                                         }
 549
 550                                         if( is_object_subclass( slap_schema.si_oc_alias,
 551                                                 b->a_group_oc ))
 552                                         {
 553                                                 fprintf( stderr,
 554                                                         "%s: line %d: group objectclass \"%s\" "
 555                                                         "is subclass of alias\n",
 556                                                         fname, lineno, value );
 557                                                 acl_usage();
 558                                         }
 559
 560                                         if (name && *name) {
 561                                                 rc = slap_str2ad( name, &b->a_group_at, &text );
 562
 563                                                 if( rc != LDAP_SUCCESS ) {
 564                                                         fprintf( stderr,
 565                                                                 "%s: line %d: group \"%s\": %s\n",
 566                                                                 fname, lineno, right, text );
 567                                                         acl_usage();
 568                                                 }
 569                                                 *--name = '/';
 570                                         } else {
 571                                                 rc = slap_str2ad( SLAPD_GROUP_ATTR, &b->a_group_at, &text );
 572
 573                                                 if( rc != LDAP_SUCCESS ) {
 574                                                         fprintf( stderr,
 575                                                                 "%s: line %d: group \"%s\": %s\n",
 576                                                                 fname, lineno, SLAPD_GROUP_ATTR, text );
 577                                                         acl_usage();
 578                                                 }
 579                                         }
 580
 581                                         if( !is_at_syntax( b->a_group_at->ad_type,
 582                                                 SLAPD_DN_SYNTAX ) &&
 583                                             !is_at_syntax( b->a_group_at->ad_type,
 584                                                 SLAPD_NAMEUID_SYNTAX ) )
 585                                         {
 586                                                 fprintf( stderr,
 587                                                         "%s: line %d: group \"%s\": inappropriate syntax: %s\n",
 588                                                         fname, lineno, right,
 589                                                         b->a_group_at->ad_type->sat_syntax_oid );
 590                                                 acl_usage();
 591                                         }
 592
 593
 594                                         {
 595                                                 int rc;
 596                                                 struct berval vals[2];
 597
 598                                                 vals[0].bv_val = b->a_group_oc->soc_oid;
 599                                                 vals[0].bv_len = strlen(vals[0].bv_val);
 600                                                 vals[1].bv_val = NULL;
 601
 602
 603                                                 rc = oc_check_allowed( b->a_group_at->ad_type, vals, NULL );
 604
 605                                                 if( rc != 0 ) {
 606                                                         fprintf( stderr,
 607                                                                 "%s: line %d: group: \"%s\" not allowed by \"%s\"\n",
 608                                                                 fname, lineno,
 609                                                                 b->a_group_at->ad_cname.bv_val,
 610                                                                 b->a_group_oc->soc_oid );
 611                                                         acl_usage();
 612                                                 }
 613                                         }
 614                                         continue;
 615                                 }
 616
 617                                 if ( strcasecmp( left, "peername" ) == 0 ) {
 618                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 619                                                 fprintf( stderr,
 620                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 621                                                     fname, lineno, style );
 622                                                 acl_usage();
 623                                         }
 624
 625                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 626                                                 fprintf( stderr,
 627                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 628                                                         fname, lineno, left );
 629                                                 acl_usage();
 630                                         }
 631
 632                                         if( b->a_peername_pat.bv_len ) {
 633                                                 fprintf( stderr,
 634                                                         "%s: line %d: peername pattern already specified.\n",
 635                                                         fname, lineno );
 636                                                 acl_usage();
 637                                         }
 638
 639                                         b->a_peername_style = sty;
 640                                         if (sty == ACL_STYLE_REGEX) {
 641                                                 acl_regex_normalized_dn( right, &bv );
 642                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 643                                                         regtest(fname, lineno, bv.bv_val);
 644                                                 }
 645                                                 b->a_peername_pat = bv;
 646                                         } else {
 647                                                 ber_str2bv( right, 0, 1, &b->a_peername_pat );
 648                                         }
 649                                         continue;
 650                                 }
 651
 652                                 if ( strcasecmp( left, "sockname" ) == 0 ) {
 653                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 654                                                 fprintf( stderr,
 655                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 656                                                     fname, lineno, style );
 657                                                 acl_usage();
 658                                         }
 659
 660                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 661                                                 fprintf( stderr,
 662                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 663                                                         fname, lineno, left );
 664                                                 acl_usage();
 665                                         }
 666
 667                                         if( b->a_sockname_pat.bv_len ) {
 668                                                 fprintf( stderr,
 669                                                         "%s: line %d: sockname pattern already specified.\n",
 670                                                         fname, lineno );
 671                                                 acl_usage();
 672                                         }
 673
 674                                         b->a_sockname_style = sty;
 675                                         if (sty == ACL_STYLE_REGEX) {
 676                                                 acl_regex_normalized_dn( right, &bv );
 677                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 678                                                         regtest(fname, lineno, bv.bv_val);
 679                                                 }
 680                                                 b->a_sockname_pat = bv;
 681                                         } else {
 682                                                 ber_str2bv( right, 0, 1, &b->a_sockname_pat );
 683                                         }
 684                                         continue;
 685                                 }
 686
 687                                 if ( strcasecmp( left, "domain" ) == 0 ) {
 688                                         switch ( sty ) {
 689                                         case ACL_STYLE_REGEX:
 690                                         case ACL_STYLE_BASE:
 691                                         case ACL_STYLE_SUBTREE:
 692                                                 break;
 693
 694                                         default:
 695                                                 fprintf( stderr,
 696                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 697                                                     fname, lineno, style );
 698                                                 acl_usage();
 699                                         }
 700
 701                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 702                                                 fprintf( stderr,
 703                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 704                                                         fname, lineno, left );
 705                                                 acl_usage();
 706                                         }
 707
 708                                         if( b->a_domain_pat.bv_len ) {
 709                                                 fprintf( stderr,
 710                                                         "%s: line %d: domain pattern already specified.\n",
 711                                                         fname, lineno );
 712                                                 acl_usage();
 713                                         }
 714
 715                                         b->a_domain_style = sty;
 716                                         b->a_domain_expand = expand;
 717                                         if (sty == ACL_STYLE_REGEX) {
 718                                                 acl_regex_normalized_dn( right, &bv );
 719                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 720                                                         regtest(fname, lineno, bv.bv_val);
 721                                                 }
 722                                                 b->a_domain_pat = bv;
 723                                         } else {
 724                                                 ber_str2bv( right, 0, 1, &b->a_domain_pat );
 725                                         }
 726                                         continue;
 727                                 }
 728
 729                                 if ( strcasecmp( left, "sockurl" ) == 0 ) {
 730                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 731                                                 fprintf( stderr,
 732                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 733                                                     fname, lineno, style );
 734                                                 acl_usage();
 735                                         }
 736
 737                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 738                                                 fprintf( stderr,
 739                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 740                                                         fname, lineno, left );
 741                                                 acl_usage();
 742                                         }
 743
 744                                         if( b->a_sockurl_pat.bv_len ) {
 745                                                 fprintf( stderr,
 746                                                         "%s: line %d: sockurl pattern already specified.\n",
 747                                                         fname, lineno );
 748                                                 acl_usage();
 749                                         }
 750
 751                                         b->a_sockurl_style = sty;
 752                                         if (sty == ACL_STYLE_REGEX) {
 753                                                 acl_regex_normalized_dn( right, &bv );
 754                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 755                                                         regtest(fname, lineno, bv.bv_val);
 756                                                 }
 757                                                 b->a_sockurl_pat = bv;
 758                                         } else {
 759                                                 ber_str2bv( right, 0, 1, &b->a_sockurl_pat );
 760                                         }
 761                                         continue;
 762                                 }
 763
 764                                 if ( strcasecmp( left, "set" ) == 0 ) {
 765                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 766                                                 fprintf( stderr,
 767                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 768                                                     fname, lineno, style );
 769                                                 acl_usage();
 770                                         }
 771
 772                                         if( b->a_set_pat.bv_len != 0 ) {
 773                                                 fprintf( stderr,
 774                                                         "%s: line %d: set attribute already specified.\n",
 775                                                         fname, lineno );
 776                                                 acl_usage();
 777                                         }
 778
 779                                         if ( right == NULL || *right == '\0' ) {
 780                                                 fprintf( stderr,
 781                                                         "%s: line %d: no set is defined\n",
 782                                                         fname, lineno );
 783                                                 acl_usage();
 784                                         }
 785
 786                                         b->a_set_style = sty;
 787                                         ber_str2bv( right, 0, 1, &b->a_set_pat );
 788
 789                                         continue;
 790                                 }
 791
 792 #ifdef SLAPD_ACI_ENABLED
 793                                 if ( strcasecmp( left, "aci" ) == 0 ) {
 794                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 795                                                 fprintf( stderr,
 796                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 797                                                     fname, lineno, style );
 798                                                 acl_usage();
 799                                         }
 800
 801                                         if( b->a_aci_at != NULL ) {
 802                                                 fprintf( stderr,
 803                                                         "%s: line %d: aci attribute already specified.\n",
 804                                                         fname, lineno );
 805                                                 acl_usage();
 806                                         }
 807
 808                                         if ( right != NULL && *right != '\0' ) {
 809                                                 rc = slap_str2ad( right, &b->a_aci_at, &text );
 810
 811                                                 if( rc != LDAP_SUCCESS ) {
 812                                                         fprintf( stderr,
 813                                                                 "%s: line %d: aci \"%s\": %s\n",
 814                                                                 fname, lineno, right, text );
 815                                                         acl_usage();
 816                                                 }
 817
 818                                         } else {
 819                                                 b->a_aci_at = slap_schema.si_ad_aci;
 820                                         }
 821
 822                                         if( !is_at_syntax( b->a_aci_at->ad_type,
 823                                                 SLAPD_ACI_SYNTAX) )
 824                                         {
 825                                                 fprintf( stderr,
 826                                                         "%s: line %d: aci \"%s\": inappropriate syntax: %s\n",
 827                                                         fname, lineno, right,
 828                                                         b->a_aci_at->ad_type->sat_syntax_oid );
 829                                                 acl_usage();
 830                                         }
 831
 832                                         continue;
 833                                 }
 834 #endif /* SLAPD_ACI_ENABLED */
 835
 836                                 if ( strcasecmp( left, "ssf" ) == 0 ) {
 837                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 838                                                 fprintf( stderr,
 839                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 840                                                     fname, lineno, style );
 841                                                 acl_usage();
 842                                         }
 843
 844                                         if( b->a_authz.sai_ssf ) {
 845                                                 fprintf( stderr,
 846                                                         "%s: line %d: ssf attribute already specified.\n",
 847                                                         fname, lineno );
 848                                                 acl_usage();
 849                                         }
 850
 851                                         if ( right == NULL || *right == '\0' ) {
 852                                                 fprintf( stderr,
 853                                                         "%s: line %d: no ssf is defined\n",
 854                                                         fname, lineno );
 855                                                 acl_usage();
 856                                         }
 857
 858                                         b->a_authz.sai_ssf = atoi( right );
 859
 860                                         if( !b->a_authz.sai_ssf ) {
 861                                                 fprintf( stderr,
 862                                                         "%s: line %d: invalid ssf value (%s)\n",
 863                                                         fname, lineno, right );
 864                                                 acl_usage();
 865                                         }
 866                                         continue;
 867                                 }
 868
 869                                 if ( strcasecmp( left, "transport_ssf" ) == 0 ) {
 870                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 871                                                 fprintf( stderr,
 872                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 873                                                     fname, lineno, style );
 874                                                 acl_usage();
 875                                         }
 876
 877                                         if( b->a_authz.sai_transport_ssf ) {
 878                                                 fprintf( stderr,
 879                                                         "%s: line %d: transport_ssf attribute already specified.\n",
 880                                                         fname, lineno );
 881                                                 acl_usage();
 882                                         }
 883
 884                                         if ( right == NULL || *right == '\0' ) {
 885                                                 fprintf( stderr,
 886                                                         "%s: line %d: no transport_ssf is defined\n",
 887                                                         fname, lineno );
 888                                                 acl_usage();
 889                                         }
 890
 891                                         b->a_authz.sai_transport_ssf = atoi( right );
 892
 893                                         if( !b->a_authz.sai_transport_ssf ) {
 894                                                 fprintf( stderr,
 895                                                         "%s: line %d: invalid transport_ssf value (%s)\n",
 896                                                         fname, lineno, right );
 897                                                 acl_usage();
 898                                         }
 899                                         continue;
 900                                 }
 901
 902                                 if ( strcasecmp( left, "tls_ssf" ) == 0 ) {
 903                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 904                                                 fprintf( stderr,
 905                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 906                                                     fname, lineno, style );
 907                                                 acl_usage();
 908                                         }
 909
 910                                         if( b->a_authz.sai_tls_ssf ) {
 911                                                 fprintf( stderr,
 912                                                         "%s: line %d: tls_ssf attribute already specified.\n",
 913                                                         fname, lineno );
 914                                                 acl_usage();
 915                                         }
 916
 917                                         if ( right == NULL || *right == '\0' ) {
 918                                                 fprintf( stderr,
 919                                                         "%s: line %d: no tls_ssf is defined\n",
 920                                                         fname, lineno );
 921                                                 acl_usage();
 922                                         }
 923
 924                                         b->a_authz.sai_tls_ssf = atoi( right );
 925
 926                                         if( !b->a_authz.sai_tls_ssf ) {
 927                                                 fprintf( stderr,
 928                                                         "%s: line %d: invalid tls_ssf value (%s)\n",
 929                                                         fname, lineno, right );
 930                                                 acl_usage();
 931                                         }
 932                                         continue;
 933                                 }
 934
 935                                 if ( strcasecmp( left, "sasl_ssf" ) == 0 ) {
 936                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 937                                                 fprintf( stderr,
 938                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 939                                                     fname, lineno, style );
 940                                                 acl_usage();
 941                                         }
 942
 943                                         if( b->a_authz.sai_sasl_ssf ) {
 944                                                 fprintf( stderr,
 945                                                         "%s: line %d: sasl_ssf attribute already specified.\n",
 946                                                         fname, lineno );
 947                                                 acl_usage();
 948                                         }
 949
 950                                         if ( right == NULL || *right == '\0' ) {
 951                                                 fprintf( stderr,
 952                                                         "%s: line %d: no sasl_ssf is defined\n",
 953                                                         fname, lineno );
 954                                                 acl_usage();
 955                                         }
 956
 957                                         b->a_authz.sai_sasl_ssf = atoi( right );
 958
 959                                         if( !b->a_authz.sai_sasl_ssf ) {
 960                                                 fprintf( stderr,
 961                                                         "%s: line %d: invalid sasl_ssf value (%s)\n",
 962                                                         fname, lineno, right );
 963                                                 acl_usage();
 964                                         }
 965                                         continue;
 966                                 }
 967
 968                                 if( right != NULL ) {
 969                                         /* unsplit */
 970                                         right[-1] = '=';
 971                                 }
 972                                 break;
 973                         }
 974
 975                         if( i == argc || ( strcasecmp( left, "stop" ) == 0 )) {
 976                                 /* out of arguments or plain stop */
 977
 978                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
 979                                 b->a_type = ACL_STOP;
 980
 981                                 access_append( &a->acl_access, b );
 982                                 continue;
 983                         }
 984
 985                         if( strcasecmp( left, "continue" ) == 0 ) {
 986                                 /* plain continue */
 987
 988                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
 989                                 b->a_type = ACL_CONTINUE;
 990
 991                                 access_append( &a->acl_access, b );
 992                                 continue;
 993                         }
 994
 995                         if( strcasecmp( left, "break" ) == 0 ) {
 996                                 /* plain continue */
 997
 998                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
 999                                 b->a_type = ACL_BREAK;
1000
1001                                 access_append( &a->acl_access, b );
1002                                 continue;
1003                         }
1004
1005                         if ( strcasecmp( left, "by" ) == 0 ) {
1006                                 /* we've gone too far */
1007                                 --i;
1008                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
1009                                 b->a_type = ACL_STOP;
1010
1011                                 access_append( &a->acl_access, b );
1012                                 continue;
1013                         }
1014
1015                         /* get <access> */
1016                         if( strncasecmp( left, "self", 4 ) == 0 ) {
1017                                 b->a_dn_self = 1;
1018                                 ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( &left[4] ) );
1019
1020                         } else {
1021                                 ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( left ) );
1022                         }
1023
1024                         if( ACL_IS_INVALID( b->a_access_mask ) ) {
1025                                 fprintf( stderr,
1026                                         "%s: line %d: expecting <access> got \"%s\"\n",
1027                                         fname, lineno, left );
1028                                 acl_usage();
1029                         }
1030
1031                         b->a_type = ACL_STOP;
1032
1033                         if( ++i == argc ) {
1034                                 /* out of arguments or plain stop */
1035                                 access_append( &a->acl_access, b );
1036                                 continue;
1037                         }
1038
1039                         if( strcasecmp( argv[i], "continue" ) == 0 ) {
1040                                 /* plain continue */
1041                                 b->a_type = ACL_CONTINUE;
1042
1043                         } else if( strcasecmp( argv[i], "break" ) == 0 ) {
1044                                 /* plain continue */
1045                                 b->a_type = ACL_BREAK;
1046
1047                         } else if ( strcasecmp( argv[i], "stop" ) != 0 ) {
1048                                 /* gone to far */
1049                                 i--;
1050                         }
1051
1052                         access_append( &a->acl_access, b );
1053
1054                 } else {
1055                         fprintf( stderr,
1056                     "%s: line %d: expecting \"to\" or \"by\" got \"%s\"\n",
1057                             fname, lineno, argv[i] );
1058                         acl_usage();
1059                 }
1060         }
1061
1062         /* if we have no real access clause, complain and do nothing */
1063         if ( a == NULL ) {
1064                         fprintf( stderr,
1065                                 "%s: line %d: warning: no access clause(s) specified in access line\n",
1066                             fname, lineno );
1067
1068         } else {
1069 #ifdef LDAP_DEBUG
1070                 if (ldap_debug & LDAP_DEBUG_ACL)
1071                         print_acl(be, a);
1072 #endif
1073
1074                 if ( a->acl_access == NULL ) {
1075                         fprintf( stderr,
1076                         "%s: line %d: warning: no by clause(s) specified in access line\n",
1077                             fname, lineno );
1078                 }
1079
1080                 if ( be != NULL ) {
1081                         acl_append( &be->be_acl, a );
1082                 } else {
1083                         acl_append( &global_acl, a );
1084                 }
1085         }
1086 }
1087
1088 char *
1089 accessmask2str( slap_mask_t mask, char *buf )
1090 {
1091         int none=1;
1092         char *ptr = buf;
1093
1094         assert( buf != NULL );
1095
1096         if ( ACL_IS_INVALID( mask ) ) {
1097                 return "invalid";
1098         }
1099
1100         buf[0] = '\0';
1101
1102         if ( ACL_IS_LEVEL( mask ) ) {
1103                 if ( ACL_LVL_IS_NONE(mask) ) {
1104                         ptr = slap_strcopy( ptr, "none" );
1105
1106                 } else if ( ACL_LVL_IS_AUTH(mask) ) {
1107                         ptr = slap_strcopy( ptr, "auth" );
1108
1109                 } else if ( ACL_LVL_IS_COMPARE(mask) ) {
1110                         ptr = slap_strcopy( ptr, "compare" );
1111
1112                 } else if ( ACL_LVL_IS_SEARCH(mask) ) {
1113                         ptr = slap_strcopy( ptr, "search" );
1114
1115                 } else if ( ACL_LVL_IS_READ(mask) ) {
1116                         ptr = slap_strcopy( ptr, "read" );
1117
1118                 } else if ( ACL_LVL_IS_WRITE(mask) ) {
1119                         ptr = slap_strcopy( ptr, "write" );
1120                 } else {
1121                         ptr = slap_strcopy( ptr, "unknown" );
1122                 }
1123
1124                 *ptr++ = '(';
1125         }
1126
1127         if( ACL_IS_ADDITIVE( mask ) ) {
1128                 *ptr++ = '+';
1129
1130         } else if( ACL_IS_SUBTRACTIVE( mask ) ) {
1131                 *ptr++ = '-';
1132
1133         } else {
1134                 *ptr++ = '=';
1135         }
1136
1137         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_WRITE) ) {
1138                 none = 0;
1139                 *ptr++ = 'w';
1140         }
1141
1142         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_READ) ) {
1143                 none = 0;
1144                 *ptr++ = 'r';
1145         }
1146
1147         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_SEARCH) ) {
1148                 none = 0;
1149                 *ptr++ = 's';
1150         }
1151
1152         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_COMPARE) ) {
1153                 none = 0;
1154                 *ptr++ = 'c';
1155         }
1156
1157         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_AUTH) ) {
1158                 none = 0;
1159                 *ptr++ = 'x';
1160         }
1161
1162         if ( none && ACL_PRIV_ISSET(mask, ACL_PRIV_NONE) ) {
1163                 none = 0;
1164                 *ptr++ = 'n';
1165         }
1166
1167         if ( none ) {
1168                 *ptr++ = '0';
1169         }
1170
1171         if ( ACL_IS_LEVEL( mask ) ) {
1172                 *ptr++ = ')';
1173         }
1174
1175         *ptr = '\0';
1176
1177         return buf;
1178 }
1179
1180 slap_mask_t
1181 str2accessmask( const char *str )
1182 {
1183         slap_mask_t     mask;
1184
1185         if( !ASCII_ALPHA(str[0]) ) {
1186                 int i;
1187
1188                 if ( str[0] == '=' ) {
1189                         ACL_INIT(mask);
1190
1191                 } else if( str[0] == '+' ) {
1192                         ACL_PRIV_ASSIGN(mask, ACL_PRIV_ADDITIVE);
1193
1194                 } else if( str[0] == '-' ) {
1195                         ACL_PRIV_ASSIGN(mask, ACL_PRIV_SUBSTRACTIVE);
1196
1197                 } else {
1198                         ACL_INVALIDATE(mask);
1199                         return mask;
1200                 }
1201
1202                 for( i=1; str[i] != '\0'; i++ ) {
1203                         if( TOLOWER((unsigned char) str[i]) == 'w' ) {
1204                                 ACL_PRIV_SET(mask, ACL_PRIV_WRITE);
1205
1206                         } else if( TOLOWER((unsigned char) str[i]) == 'r' ) {
1207                                 ACL_PRIV_SET(mask, ACL_PRIV_READ);
1208
1209                         } else if( TOLOWER((unsigned char) str[i]) == 's' ) {
1210                                 ACL_PRIV_SET(mask, ACL_PRIV_SEARCH);
1211
1212                         } else if( TOLOWER((unsigned char) str[i]) == 'c' ) {
1213                                 ACL_PRIV_SET(mask, ACL_PRIV_COMPARE);
1214
1215                         } else if( TOLOWER((unsigned char) str[i]) == 'x' ) {
1216                                 ACL_PRIV_SET(mask, ACL_PRIV_AUTH);
1217
1218                         } else if( str[i] != '0' ) {
1219                                 ACL_INVALIDATE(mask);
1220                                 return mask;
1221                         }
1222                 }
1223
1224                 return mask;
1225         }
1226
1227         if ( strcasecmp( str, "none" ) == 0 ) {
1228                 ACL_LVL_ASSIGN_NONE(mask);
1229
1230         } else if ( strcasecmp( str, "auth" ) == 0 ) {
1231                 ACL_LVL_ASSIGN_AUTH(mask);
1232
1233         } else if ( strcasecmp( str, "compare" ) == 0 ) {
1234                 ACL_LVL_ASSIGN_COMPARE(mask);
1235
1236         } else if ( strcasecmp( str, "search" ) == 0 ) {
1237                 ACL_LVL_ASSIGN_SEARCH(mask);
1238
1239         } else if ( strcasecmp( str, "read" ) == 0 ) {
1240                 ACL_LVL_ASSIGN_READ(mask);
1241
1242         } else if ( strcasecmp( str, "write" ) == 0 ) {
1243                 ACL_LVL_ASSIGN_WRITE(mask);
1244
1245         } else {
1246                 ACL_INVALIDATE( mask );
1247         }
1248
1249         return mask;
1250 }
1251
1252 static void
1253 acl_usage( void )
1254 {
1255         fprintf( stderr, "\n"
1256                 "<access clause> ::= access to <what> "
1257                                 "[ by <who> <access> [ <control> ] ]+ \n"
1258                 "<what> ::= * | [dn[.<dnstyle>]=<regex>] [filter=<ldapfilter>] [attrs=<attrlist>]\n"
1259                 "<attrlist> ::= <attr> | <attr> , <attrlist>\n"
1260                 "<attr> ::= <attrname> | entry | children\n"
1261                 "<who> ::= [ * | anonymous | users | self | dn[.<dnstyle>]=<regex> ]\n"
1262                         "\t[dnattr=<attrname>]\n"
1263                         "\t[group[/<objectclass>[/<attrname>]][.<style>]=<regex>]\n"
1264                         "\t[peername[.<style>]=<regex>] [sockname[.<style>]=<regex>]\n"
1265                         "\t[domain[.<style>]=<regex>] [sockurl[.<style>]=<regex>]\n"
1266 #ifdef SLAPD_ACI_ENABLED
1267                         "\t[aci=<attrname>]\n"
1268 #endif
1269                         "\t[ssf=<n>] [transport_ssf=<n>] [tls_ssf=<n>] [sasl_ssf=<n>]\n"
1270                 "<dnstyle> ::= regex | base | exact (alias of base) | one | sub | children\n"
1271                 "<style> ::= regex | base | exact (alias of base)\n"
1272                 "<groupflags> ::= R\n"
1273                 "<access> ::= [self]{<level>|<priv>}\n"
1274                 "<level> ::= none | auth | compare | search | read | write\n"
1275                 "<priv> ::= {=|+|-}{w|r|s|c|x}+\n"
1276                 "<control> ::= [ stop | continue | break ]\n"
1277                 );
1278         exit( EXIT_FAILURE );
1279 }
1280
1281 /*
1282  * Set pattern to a "normalized" DN from src.
1283  * At present it simply eats the (optional) space after
1284  * a RDN separator (,)
1285  * Eventually will evolve in a more complete normalization
1286  */
1287 static void
1288 acl_regex_normalized_dn(
1289         const char *src,
1290         struct berval *pattern
1291 )
1292 {
1293         char *str, *p;
1294         ber_len_t len;
1295
1296         str = ch_strdup( src );
1297         len = strlen( src );
1298
1299         for ( p = str; p && p[ 0 ]; p++ ) {
1300                 /* escape */
1301                 if ( p[ 0 ] == '\\' && p[ 1 ] ) {
1302                         /*
1303                          * if escaping a hex pair we should
1304                          * increment p twice; however, in that
1305                          * case the second hex number does
1306                          * no harm
1307                          */
1308                         p++;
1309                 }
1310
1311                 if ( p[ 0 ] == ',' ) {
1312                         if ( p[ 1 ] == ' ' ) {
1313                                 char *q;
1314
1315                                 /*
1316                                  * too much space should be
1317                                  * an error if we are pedantic
1318                                  */
1319                                 for ( q = &p[ 2 ]; q[ 0 ] == ' '; q++ ) {
1320                                         /* DO NOTHING */ ;
1321                                 }
1322                                 AC_MEMCPY( p+1, q, len-(q-str)+1);
1323                         }
1324                 }
1325         }
1326         pattern->bv_val = str;
1327         pattern->bv_len = p-str;
1328
1329         return;
1330 }
1331
1332 static void
1333 split(
1334     char        *line,
1335     int         splitchar,
1336     char        **left,
1337     char        **right
1338 )
1339 {
1340         *left = line;
1341         if ( (*right = strchr( line, splitchar )) != NULL ) {
1342                 *((*right)++) = '\0';
1343         }
1344 }
1345
1346 static void
1347 access_append( Access **l, Access *a )
1348 {
1349         for ( ; *l != NULL; l = &(*l)->a_next )
1350                 ;       /* NULL */
1351
1352         *l = a;
1353 }
1354
1355 void
1356 acl_append( AccessControl **l, AccessControl *a )
1357 {
1358         for ( ; *l != NULL; l = &(*l)->acl_next )
1359                 ;       /* NULL */
1360
1361         *l = a;
1362 }
1363
1364 static void
1365 access_free( Access *a )
1366 {
1367         if ( a->a_dn_pat.bv_val )
1368                 free ( a->a_dn_pat.bv_val );
1369         if ( a->a_peername_pat.bv_val )
1370                 free ( a->a_peername_pat.bv_val );
1371         if ( a->a_sockname_pat.bv_val )
1372                 free ( a->a_sockname_pat.bv_val );
1373         if ( a->a_domain_pat.bv_val )
1374                 free ( a->a_domain_pat.bv_val );
1375         if ( a->a_sockurl_pat.bv_val )
1376                 free ( a->a_sockurl_pat.bv_val );
1377         if ( a->a_set_pat.bv_len )
1378                 free ( a->a_set_pat.bv_val );
1379         if ( a->a_group_pat.bv_len )
1380                 free ( a->a_group_pat.bv_val );
1381         free( a );
1382 }
1383
1384 void
1385 acl_free( AccessControl *a )
1386 {
1387         Access *n;
1388         AttributeName *an;
1389
1390         if ( a->acl_filter )
1391                 filter_free( a->acl_filter );
1392         if ( a->acl_dn_pat.bv_len )
1393                 free ( a->acl_dn_pat.bv_val );
1394         if ( a->acl_attrs ) {
1395                 for ( an = a->acl_attrs; an->an_name.bv_val; an++ ) {
1396                         free( an->an_name.bv_val );
1397                 }
1398                 free( a->acl_attrs );
1399         }
1400         for (; a->acl_access; a->acl_access = n) {
1401                 n = a->acl_access->a_next;
1402                 access_free( a->acl_access );
1403         }
1404         free( a );
1405 }
1406
1407 /* Because backend_startup uses acl_append to tack on the global_acl to
1408  * the end of each backend's acl, we cannot just take one argument and
1409  * merrily free our way to the end of the list. backend_destroy calls us
1410  * with the be_acl in arg1, and global_acl in arg2 to give us a stopping
1411  * point. config_destroy calls us with global_acl in arg1 and NULL in
1412  * arg2, so we then proceed to polish off the global_acl.
1413  */
1414 void
1415 acl_destroy( AccessControl *a, AccessControl *end )
1416 {
1417         AccessControl *n;
1418
1419         for (; a && a!= end; a=n) {
1420                 n = a->acl_next;
1421                 acl_free( a );
1422         }
1423 }
1424
1425 char *
1426 access2str( slap_access_t access )
1427 {
1428         if ( access == ACL_NONE ) {
1429                 return "none";
1430
1431         } else if ( access == ACL_AUTH ) {
1432                 return "auth";
1433
1434         } else if ( access == ACL_COMPARE ) {
1435                 return "compare";
1436
1437         } else if ( access == ACL_SEARCH ) {
1438                 return "search";
1439
1440         } else if ( access == ACL_READ ) {
1441                 return "read";
1442
1443         } else if ( access == ACL_WRITE ) {
1444                 return "write";
1445         }
1446
1447         return "unknown";
1448 }
1449
1450 slap_access_t
1451 str2access( const char *str )
1452 {
1453         if ( strcasecmp( str, "none" ) == 0 ) {
1454                 return ACL_NONE;
1455
1456         } else if ( strcasecmp( str, "auth" ) == 0 ) {
1457                 return ACL_AUTH;
1458
1459         } else if ( strcasecmp( str, "compare" ) == 0 ) {
1460                 return ACL_COMPARE;
1461
1462         } else if ( strcasecmp( str, "search" ) == 0 ) {
1463                 return ACL_SEARCH;
1464
1465         } else if ( strcasecmp( str, "read" ) == 0 ) {
1466                 return ACL_READ;
1467
1468         } else if ( strcasecmp( str, "write" ) == 0 ) {
1469                 return ACL_WRITE;
1470         }
1471
1472         return( ACL_INVALID_ACCESS );
1473 }
1474
1475 #ifdef LDAP_DEBUG
1476
1477 static char *style_strings[5] = {
1478                         "regex",
1479                         "base",
1480                         "one",
1481                         "subtree",
1482                         "children"
1483                 };
1484
1485
1486 static void
1487 print_access( Access *b )
1488 {
1489         char maskbuf[ACCESSMASK_MAXLEN];
1490
1491         fprintf( stderr, "\tby" );
1492
1493         if ( b->a_dn_pat.bv_len != 0 ) {
1494                 if( strcmp(b->a_dn_pat.bv_val, "*") == 0
1495                         || strcmp(b->a_dn_pat.bv_val, "users") == 0
1496                         || strcmp(b->a_dn_pat.bv_val, "anonymous") == 0
1497                         || strcmp(b->a_dn_pat.bv_val, "self") == 0 )
1498                 {
1499                         fprintf( stderr, " %s", b->a_dn_pat.bv_val );
1500
1501                 } else {
1502                         fprintf( stderr, " dn.%s=%s",
1503                                 style_strings[b->a_dn_style], b->a_dn_pat.bv_val );
1504                 }
1505         }
1506
1507         if ( b->a_dn_at != NULL ) {
1508                 fprintf( stderr, " dnattr=%s", b->a_dn_at->ad_cname.bv_val );
1509         }
1510
1511         if ( b->a_group_pat.bv_len ) {
1512                 fprintf( stderr, " group=%s", b->a_group_pat.bv_val );
1513
1514                 if ( b->a_group_oc ) {
1515                         fprintf( stderr, " objectClass: %s",
1516                                 b->a_group_oc->soc_oclass.oc_oid );
1517
1518                         if ( b->a_group_at ) {
1519                                 fprintf( stderr, " attributeType: %s", b->a_group_at->ad_cname.bv_val );
1520                         }
1521                 }
1522     }
1523
1524         if ( b->a_peername_pat.bv_len != 0 ) {
1525                 fprintf( stderr, " peername=%s", b->a_peername_pat.bv_val );
1526         }
1527
1528         if ( b->a_sockname_pat.bv_len != 0 ) {
1529                 fprintf( stderr, " sockname=%s", b->a_sockname_pat.bv_val );
1530         }
1531
1532         if ( b->a_domain_pat.bv_len != 0 ) {
1533                 fprintf( stderr, " domain=%s", b->a_domain_pat.bv_val );
1534         }
1535
1536         if ( b->a_sockurl_pat.bv_len != 0 ) {
1537                 fprintf( stderr, " sockurl=%s", b->a_sockurl_pat.bv_val );
1538         }
1539
1540 #ifdef SLAPD_ACI_ENABLED
1541         if ( b->a_aci_at != NULL ) {
1542                 fprintf( stderr, " aci=%s", b->a_aci_at->ad_cname.bv_val );
1543         }
1544 #endif
1545
1546         /* Security Strength Factors */
1547         if ( b->a_authz.sai_ssf ) {
1548                 fprintf( stderr, " ssf=%u",
1549                         b->a_authz.sai_ssf );
1550         }
1551         if ( b->a_authz.sai_transport_ssf ) {
1552                 fprintf( stderr, " transport_ssf=%u",
1553                         b->a_authz.sai_transport_ssf );
1554         }
1555         if ( b->a_authz.sai_tls_ssf ) {
1556                 fprintf( stderr, " tls_ssf=%u",
1557                         b->a_authz.sai_tls_ssf );
1558         }
1559         if ( b->a_authz.sai_sasl_ssf ) {
1560                 fprintf( stderr, " sasl_ssf=%u",
1561                         b->a_authz.sai_sasl_ssf );
1562         }
1563
1564         fprintf( stderr, " %s%s",
1565                 b->a_dn_self ? "self" : "",
1566                 accessmask2str( b->a_access_mask, maskbuf ) );
1567
1568         if( b->a_type == ACL_BREAK ) {
1569                 fprintf( stderr, " break" );
1570
1571         } else if( b->a_type == ACL_CONTINUE ) {
1572                 fprintf( stderr, " continue" );
1573
1574         } else if( b->a_type != ACL_STOP ) {
1575                 fprintf( stderr, " unknown-control" );
1576         }
1577
1578         fprintf( stderr, "\n" );
1579 }
1580
1581
1582 static void
1583 print_acl( Backend *be, AccessControl *a )
1584 {
1585         int             to = 0;
1586         Access  *b;
1587
1588         fprintf( stderr, "%s ACL: access to",
1589                 be == NULL ? "Global" : "Backend" );
1590
1591         if ( a->acl_dn_pat.bv_len != 0 ) {
1592                 to++;
1593                 fprintf( stderr, " dn.%s=%s\n",
1594                         style_strings[a->acl_dn_style], a->acl_dn_pat.bv_val );
1595         }
1596
1597         if ( a->acl_filter != NULL ) {
1598                 struct berval bv = { 0, NULL };
1599                 to++;
1600                 filter2bv( a->acl_filter, &bv );
1601                 fprintf( stderr, " filter=%s\n", bv.bv_val );
1602                 ch_free( bv.bv_val );
1603         }
1604
1605         if ( a->acl_attrs != NULL ) {
1606                 int     first = 1;
1607                 AttributeName *an;
1608                 to++;
1609
1610                 fprintf( stderr, " attrs=" );
1611                 for ( an = a->acl_attrs; an && an->an_name.bv_val; an++ ) {
1612                         if ( ! first ) {
1613                                 fprintf( stderr, "," );
1614                         }
1615                         fputs( an->an_name.bv_val, stderr );
1616                         first = 0;
1617                 }
1618                 fprintf(  stderr, "\n" );
1619         }
1620
1621         if( !to ) {
1622                 fprintf( stderr, " *\n" );
1623         }
1624
1625         for ( b = a->acl_access; b != NULL; b = b->a_next ) {
1626                 print_access( b );
1627         }
1628
1629         fprintf( stderr, "\n" );
1630 }
1631
1632 #endif /* LDAP_DEBUG */