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