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 #include "lutil.h"
  21
  22 static void             split(char *line, int splitchar, char **left, char **right);
  23 static void             access_append(Access **l, Access *a);
  24 static void             acl_usage(void) LDAP_GCCATTR((noreturn));
  25
  26 static void             acl_regex_normalized_dn(const char *src, struct berval *pat);
  27
  28 #ifdef LDAP_DEBUG
  29 static void             print_acl(Backend *be, AccessControl *a);
  30 static void             print_access(Access *b);
  31 #endif
  32
  33 static void
  34 regtest(const char *fname, int lineno, char *pat) {
  35         int e;
  36         regex_t re;
  37
  38         char buf[512];
  39         unsigned size;
  40
  41         char *sp;
  42         char *dp;
  43         int  flag;
  44
  45         sp = pat;
  46         dp = buf;
  47         size = 0;
  48         buf[0] = '\0';
  49
  50         for (size = 0, flag = 0; (size < sizeof(buf)) && *sp; sp++) {
  51                 if (flag) {
  52                         if (*sp == '$'|| (*sp >= '0' && *sp <= '9')) {
  53                                 *dp++ = *sp;
  54                                 size++;
  55                         }
  56                         flag = 0;
  57
  58                 } else {
  59                         if (*sp == '$') {
  60                                 flag = 1;
  61                         } else {
  62                                 *dp++ = *sp;
  63                                 size++;
  64                         }
  65                 }
  66         }
  67
  68         *dp = '\0';
  69         if ( size >= (sizeof(buf)-1) ) {
  70                 fprintf( stderr,
  71                         "%s: line %d: regular expression \"%s\" too large\n",
  72                         fname, lineno, pat );
  73                 acl_usage();
  74         }
  75
  76         if ((e = regcomp(&re, buf, REG_EXTENDED|REG_ICASE))) {
  77                 char error[512];
  78                 regerror(e, &re, error, sizeof(error));
  79                 fprintf( stderr,
  80                         "%s: line %d: regular expression \"%s\" bad because of %s\n",
  81                         fname, lineno, pat, error );
  82                 acl_usage();
  83         }
  84         regfree(&re);
  85 }
  86
  87 void
  88 parse_acl(
  89     Backend     *be,
  90     const char  *fname,
  91     int         lineno,
  92     int         argc,
  93     char        **argv
  94 )
  95 {
  96         int             i;
  97         char            *left, *right, *style;
  98         struct berval   bv;
  99         AccessControl   *a;
 100         Access  *b;
 101         int rc;
 102         const char *text;
 103
 104         a = NULL;
 105         for ( i = 1; i < argc; i++ ) {
 106                 /* to clause - select which entries are protected */
 107                 if ( strcasecmp( argv[i], "to" ) == 0 ) {
 108                         if ( a != NULL ) {
 109                                 fprintf( stderr,
 110                 "%s: line %d: only one to clause allowed in access line\n",
 111                                     fname, lineno );
 112                                 acl_usage();
 113                         }
 114                         a = (AccessControl *) ch_calloc( 1, sizeof(AccessControl) );
 115                         for ( ++i; i < argc; i++ ) {
 116                                 if ( strcasecmp( argv[i], "by" ) == 0 ) {
 117                                         i--;
 118                                         break;
 119                                 }
 120
 121                                 if ( strcasecmp( argv[i], "*" ) == 0 ) {
 122                                         if( a->acl_dn_pat.bv_len ||
 123                                                 ( a->acl_dn_style != ACL_STYLE_REGEX ) )
 124                                         {
 125                                                 fprintf( stderr,
 126                                                         "%s: line %d: dn pattern"
 127                                                         " already specified in to clause.\n",
 128                                                         fname, lineno );
 129                                                 acl_usage();
 130                                         }
 131
 132                                         a->acl_dn_pat.bv_val = ch_strdup( "*" );
 133                                         a->acl_dn_pat.bv_len = 1;
 134                                         continue;
 135                                 }
 136
 137                                 split( argv[i], '=', &left, &right );
 138                                 split( left, '.', &left, &style );
 139
 140                                 if ( right == NULL ) {
 141                                         fprintf( stderr,
 142         "%s: line %d: missing \"=\" in \"%s\" in to clause\n",
 143                                             fname, lineno, left );
 144                                         acl_usage();
 145                                 }
 146
 147                                 if ( strcasecmp( left, "dn" ) == 0 ) {
 148                                         if( a->acl_dn_pat.bv_len != 0 ||
 149                                                 ( a->acl_dn_style != ACL_STYLE_REGEX ) )
 150                                         {
 151                                                 fprintf( stderr,
 152                                                         "%s: line %d: dn pattern"
 153                                                         " already specified in to clause.\n",
 154                                                         fname, lineno );
 155                                                 acl_usage();
 156                                         }
 157
 158                                         if ( style == NULL || *style == '\0'
 159                                                 || strcasecmp( style, "regex" ) == 0 )
 160                                         {
 161                                                 a->acl_dn_style = ACL_STYLE_REGEX;
 162
 163                                                 if ( *right == '\0' ) {
 164                                                         /* empty regex should match empty DN */
 165                                                         a->acl_dn_style = ACL_STYLE_BASE;
 166                                                         ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 167
 168                                                 } else if ( strcmp(right, "*") == 0
 169                                                         || strcmp(right, ".*") == 0
 170                                                         || strcmp(right, ".*$") == 0
 171                                                         || strcmp(right, "^.*") == 0
 172                                                         || strcmp(right, "^.*$") == 0
 173                                                         || strcmp(right, ".*$$") == 0
 174                                                         || strcmp(right, "^.*$$") == 0 )
 175                                                 {
 176                                                         a->acl_dn_pat.bv_val = ch_strdup( "*" );
 177                                                         a->acl_dn_pat.bv_len = sizeof("*")-1;
 178
 179                                                 } else {
 180                                                         acl_regex_normalized_dn( right, &a->acl_dn_pat );
 181                                                 }
 182                                         } else if ( strcasecmp( style, "base" ) == 0 ) {
 183                                                 a->acl_dn_style = ACL_STYLE_BASE;
 184                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 185                                         } else if ( strcasecmp( style, "one" ) == 0 ) {
 186                                                 a->acl_dn_style = ACL_STYLE_ONE;
 187                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 188                                         } else if ( strcasecmp( style, "subtree" ) == 0 ) {
 189                                                 a->acl_dn_style = ACL_STYLE_SUBTREE;
 190                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 191                                         } else if ( strcasecmp( style, "children" ) == 0 ) {
 192                                                 a->acl_dn_style = ACL_STYLE_CHILDREN;
 193                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 194                                         } else {
 195                                                 fprintf( stderr,
 196         "%s: line %d: unknown dn style \"%s\" in to clause\n",
 197                                                     fname, lineno, style );
 198                                                 acl_usage();
 199                                         }
 200
 201                                         continue;
 202                                 }
 203
 204                                 if ( strcasecmp( left, "filter" ) == 0 ) {
 205                                         if ( (a->acl_filter = str2filter( right )) == NULL ) {
 206                                                 fprintf( stderr,
 207                                 "%s: line %d: bad filter \"%s\" in to clause\n",
 208                                                     fname, lineno, right );
 209                                                 acl_usage();
 210                                         }
 211
 212                                 } else if ( strncasecmp( left, "attr", 4 ) == 0 ) {
 213                                         a->acl_attrs = str2anlist( a->acl_attrs,
 214                                                 right, "," );
 215                                         if ( a->acl_attrs == NULL ) {
 216                                                 fprintf( stderr,
 217                                 "%s: line %d: unknown attr \"%s\" in to clause\n",
 218                                                     fname, lineno, right );
 219                                                 acl_usage();
 220                                         }
 221                                 } else {
 222                                         fprintf( stderr,
 223                                                 "%s: line %d: expecting <what> got \"%s\"\n",
 224                                             fname, lineno, left );
 225                                         acl_usage();
 226                                 }
 227                         }
 228
 229                         if ( a->acl_dn_pat.bv_len != 0 &&
 230                                 strcmp(a->acl_dn_pat.bv_val, "*") == 0 )
 231                         {
 232                                 free( a->acl_dn_pat.bv_val );
 233                                 a->acl_dn_pat.bv_val = NULL;
 234                                 a->acl_dn_pat.bv_len = 0;
 235                         }
 236
 237                         if( a->acl_dn_pat.bv_len != 0 ||
 238                                 ( a->acl_dn_style != ACL_STYLE_REGEX ) )
 239                         {
 240                                 if ( a->acl_dn_style != ACL_STYLE_REGEX ) {
 241                                         struct berval bv;
 242                                         rc = dnNormalize2( NULL, &a->acl_dn_pat, &bv);
 243                                         if ( rc != LDAP_SUCCESS ) {
 244                                                 fprintf( stderr,
 245                                                         "%s: line %d: bad DN \"%s\"\n",
 246                                                         fname, lineno, a->acl_dn_pat.bv_val );
 247                                                 acl_usage();
 248                                         }
 249                                         free( a->acl_dn_pat.bv_val );
 250                                         a->acl_dn_pat = bv;
 251                                 } else {
 252                                         int e = regcomp( &a->acl_dn_re, a->acl_dn_pat.bv_val,
 253                                                 REG_EXTENDED | REG_ICASE );
 254                                         if ( e ) {
 255                                                 char buf[512];
 256                                                 regerror( e, &a->acl_dn_re, buf, sizeof(buf) );
 257                                                 fprintf( stderr, "%s: line %d: "
 258                                                         "regular expression \"%s\" bad because of %s\n",
 259                                                         fname, lineno, right, buf );
 260                                                 acl_usage();
 261                                         }
 262                                 }
 263                         }
 264
 265                 /* by clause - select who has what access to entries */
 266                 } else if ( strcasecmp( argv[i], "by" ) == 0 ) {
 267                         if ( a == NULL ) {
 268                                 fprintf( stderr,
 269                                         "%s: line %d: to clause required before by clause in access line\n",
 270                                     fname, lineno );
 271                                 acl_usage();
 272                         }
 273
 274                         /*
 275                          * by clause consists of <who> and <access>
 276                          */
 277
 278                         b = (Access *) ch_calloc( 1, sizeof(Access) );
 279
 280                         ACL_INVALIDATE( b->a_access_mask );
 281
 282                         if ( ++i == argc ) {
 283                                 fprintf( stderr,
 284                             "%s: line %d: premature eol: expecting <who>\n",
 285                                     fname, lineno );
 286                                 acl_usage();
 287                         }
 288
 289                         /* get <who> */
 290                         for ( ; i < argc; i++ ) {
 291                                 slap_style_t sty = ACL_STYLE_REGEX;
 292                                 char *style_modifier = NULL;
 293                                 int expand = 0;
 294
 295                                 split( argv[i], '=', &left, &right );
 296                                 split( left, '.', &left, &style );
 297                                 if ( style ) {
 298                                         split( style, ',', &style, &style_modifier);
 299                                 }
 300                                 if ( style == NULL || *style == '\0'
 301                                         || strcasecmp( style, "regex" ) == 0 )
 302                                 {
 303                                         sty = ACL_STYLE_REGEX;
 304                                 } else if ( strcasecmp( style, "exact" ) == 0 ) {
 305                                         sty = ACL_STYLE_EXACT;
 306                                 } else if ( strcasecmp( style, "base" ) == 0 ) {
 307                                         sty = ACL_STYLE_BASE;
 308                                 } else if ( strcasecmp( style, "one" ) == 0 ) {
 309                                         sty = ACL_STYLE_ONE;
 310                                 } else if ( strcasecmp( style, "subtree" ) == 0 ) {
 311                                         sty = ACL_STYLE_SUBTREE;
 312                                 } else if ( strcasecmp( style, "children" ) == 0 ) {
 313                                         sty = ACL_STYLE_CHILDREN;
 314                                 } else {
 315                                         fprintf( stderr,
 316                                                 "%s: line %d: unknown style \"%s\" in by clause\n",
 317                                             fname, lineno, style );
 318                                         acl_usage();
 319                                 }
 320
 321                                 if ( style_modifier && strcasecmp( style_modifier, "expand" ) == 0 ) {
 322                                         expand = 1;
 323                                 }
 324
 325                                 if ( strcasecmp( argv[i], "*" ) == 0 ) {
 326                                         bv.bv_val = ch_strdup( "*" );
 327                                         bv.bv_len = 1;
 328
 329                                 } else if ( strcasecmp( argv[i], "anonymous" ) == 0 ) {
 330                                         ber_str2bv("anonymous",
 331                                                 sizeof("anonymous")-1,
 332                                                 1, &bv);
 333
 334                                 } else if ( strcasecmp( argv[i], "self" ) == 0 ) {
 335                                         ber_str2bv("self",
 336                                                 sizeof("self")-1,
 337                                                 1, &bv);
 338
 339                                 } else if ( strcasecmp( argv[i], "users" ) == 0 ) {
 340                                         ber_str2bv("users",
 341                                                 sizeof("users")-1,
 342                                                 1, &bv);
 343
 344                                 } else if ( strcasecmp( left, "dn" ) == 0 ) {
 345                                         if ( sty == ACL_STYLE_REGEX ) {
 346                                                 b->a_dn_style = ACL_STYLE_REGEX;
 347                                                 if( right == NULL ) {
 348                                                         /* no '=' */
 349                                                         ber_str2bv("users",
 350                                                                 sizeof("users")-1,
 351                                                                 1, &bv);
 352                                                 } else if (*right == '\0' ) {
 353                                                         /* dn="" */
 354                                                         ber_str2bv("anonymous",
 355                                                                 sizeof("anonymous")-1,
 356                                                                 1, &bv);
 357                                                 } else if ( strcmp( right, "*" ) == 0 ) {
 358                                                         /* dn=* */
 359                                                         /* any or users?  users for now */
 360                                                         ber_str2bv("users",
 361                                                                 sizeof("users")-1,
 362                                                                 1, &bv);
 363                                                 } else if ( strcmp( right, ".+" ) == 0
 364                                                         || strcmp( right, "^.+" ) == 0
 365                                                         || strcmp( right, ".+$" ) == 0
 366                                                         || strcmp( right, "^.+$" ) == 0
 367                                                         || strcmp( right, ".+$$" ) == 0
 368                                                         || strcmp( right, "^.+$$" ) == 0 )
 369                                                 {
 370                                                         ber_str2bv("users",
 371                                                                 sizeof("users")-1,
 372                                                                 1, &bv);
 373                                                 } else if ( strcmp( right, ".*" ) == 0
 374                                                         || strcmp( right, "^.*" ) == 0
 375                                                         || strcmp( right, ".*$" ) == 0
 376                                                         || strcmp( right, "^.*$" ) == 0
 377                                                         || strcmp( right, ".*$$" ) == 0
 378                                                         || strcmp( right, "^.*$$" ) == 0 )
 379                                                 {
 380                                                         ber_str2bv("*",
 381                                                                 sizeof("*")-1,
 382                                                                 1, &bv);
 383
 384                                                 } else {
 385                                                         acl_regex_normalized_dn( right, &bv );
 386                                                         if ( !ber_bvccmp( &bv, '*' ) ) {
 387                                                                 regtest(fname, lineno, bv.bv_val);
 388                                                         }
 389                                                 }
 390                                         } else if ( right == NULL || *right == '\0' ) {
 391                                                 fprintf( stderr,
 392                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 393                                                     fname, lineno, left );
 394                                                 acl_usage();
 395
 396                                         } else {
 397                                                 ber_str2bv( right, 0, 1, &bv );
 398                                         }
 399
 400                                 } else {
 401                                         bv.bv_val = NULL;
 402                                 }
 403
 404                                 if( bv.bv_val != NULL ) {
 405                                         if( b->a_dn_pat.bv_len != 0 ) {
 406                                                 fprintf( stderr,
 407                                                     "%s: line %d: dn pattern already specified.\n",
 408                                                     fname, lineno );
 409                                                 acl_usage();
 410                                         }
 411
 412                                         if ( sty != ACL_STYLE_REGEX && expand == 0 ) {
 413                                                 rc = dnNormalize2(NULL, &bv, &b->a_dn_pat);
 414                                                 if ( rc != LDAP_SUCCESS ) {
 415                                                         fprintf( stderr,
 416                                                                 "%s: line %d: bad DN \"%s\"\n",
 417                                                                 fname, lineno, bv.bv_val );
 418                                                         acl_usage();
 419                                                 }
 420                                                 free(bv.bv_val);
 421                                         } else {
 422                                                 b->a_dn_pat = bv;
 423                                         }
 424                                         b->a_dn_style = sty;
 425                                         b->a_dn_expand = expand;
 426                                         continue;
 427                                 }
 428
 429                                 if ( strcasecmp( left, "dnattr" ) == 0 ) {
 430                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 431                                                 fprintf( stderr,
 432                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 433                                                         fname, lineno, left );
 434                                                 acl_usage();
 435                                         }
 436
 437                                         if( b->a_dn_at != NULL ) {
 438                                                 fprintf( stderr,
 439                                                         "%s: line %d: dnattr already specified.\n",
 440                                                         fname, lineno );
 441                                                 acl_usage();
 442                                         }
 443
 444                                         rc = slap_str2ad( right, &b->a_dn_at, &text );
 445
 446                                         if( rc != LDAP_SUCCESS ) {
 447                                                 fprintf( stderr,
 448                                                         "%s: line %d: dnattr \"%s\": %s\n",
 449                                                         fname, lineno, right, text );
 450                                                 acl_usage();
 451                                         }
 452
 453
 454                                         if( !is_at_syntax( b->a_dn_at->ad_type,
 455                                                 SLAPD_DN_SYNTAX ) &&
 456                                                 !is_at_syntax( b->a_dn_at->ad_type,
 457                                                 SLAPD_NAMEUID_SYNTAX ))
 458                                         {
 459                                                 fprintf( stderr,
 460                                                         "%s: line %d: dnattr \"%s\": "
 461                                                         "inappropriate syntax: %s\n",
 462                                                         fname, lineno, right,
 463                                                         b->a_dn_at->ad_type->sat_syntax_oid );
 464                                                 acl_usage();
 465                                         }
 466
 467                                         continue;
 468                                 }
 469
 470                                 if ( strncasecmp( left, "group", sizeof("group")-1 ) == 0 ) {
 471                                         char *name = NULL;
 472                                         char *value = NULL;
 473
 474                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 475                                                 fprintf( stderr,
 476                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 477                                                     fname, lineno, style );
 478                                                 acl_usage();
 479                                         }
 480
 481                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 482                                                 fprintf( stderr,
 483                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 484                                                         fname, lineno, left );
 485                                                 acl_usage();
 486                                         }
 487
 488                                         if( b->a_group_pat.bv_len ) {
 489                                                 fprintf( stderr,
 490                                                         "%s: line %d: group pattern already specified.\n",
 491                                                         fname, lineno );
 492                                                 acl_usage();
 493                                         }
 494
 495                                         /* format of string is "group/objectClassValue/groupAttrName" */
 496                                         if ((value = strchr(left, '/')) != NULL) {
 497                                                 *value++ = '\0';
 498                                                 if (*value
 499                                                         && (name = strchr(value, '/')) != NULL)
 500                                                 {
 501                                                         *name++ = '\0';
 502                                                 }
 503                                         }
 504
 505                                         b->a_group_style = sty;
 506                                         if (sty == ACL_STYLE_REGEX) {
 507                                                 acl_regex_normalized_dn( right, &bv );
 508                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 509                                                         regtest(fname, lineno, bv.bv_val);
 510                                                 }
 511                                                 b->a_group_pat = bv;
 512                                         } else {
 513                                                 ber_str2bv( right, 0, 0, &bv );
 514                                                 rc = dnNormalize2( NULL, &bv, &b->a_group_pat );
 515                                                 if ( rc != LDAP_SUCCESS ) {
 516                                                         fprintf( stderr,
 517                                                                 "%s: line %d: bad DN \"%s\"\n",
 518                                                                 fname, lineno, right );
 519                                                         acl_usage();
 520                                                 }
 521                                         }
 522
 523                                         if (value && *value) {
 524                                                 b->a_group_oc = oc_find( value );
 525                                                 *--value = '/';
 526
 527                                                 if( b->a_group_oc == NULL ) {
 528                                                         fprintf( stderr,
 529                                                                 "%s: line %d: group objectclass "
 530                                                                 "\"%s\" unknown\n",
 531                                                                 fname, lineno, value );
 532                                                         acl_usage();
 533                                                 }
 534                                         } else {
 535                                                 b->a_group_oc = oc_find(SLAPD_GROUP_CLASS);
 536
 537                                                 if( b->a_group_oc == NULL ) {
 538                                                         fprintf( stderr,
 539                                                                 "%s: line %d: group default objectclass "
 540                                                                 "\"%s\" unknown\n",
 541                                                                 fname, lineno, SLAPD_GROUP_CLASS );
 542                                                         acl_usage();
 543                                                 }
 544                                         }
 545
 546                                         if( is_object_subclass( slap_schema.si_oc_referral,
 547                                                 b->a_group_oc ))
 548                                         {
 549                                                 fprintf( stderr,
 550                                                         "%s: line %d: group objectclass \"%s\" "
 551                                                         "is subclass of referral\n",
 552                                                         fname, lineno, value );
 553                                                 acl_usage();
 554                                         }
 555
 556                                         if( is_object_subclass( slap_schema.si_oc_alias,
 557                                                 b->a_group_oc ))
 558                                         {
 559                                                 fprintf( stderr,
 560                                                         "%s: line %d: group objectclass \"%s\" "
 561                                                         "is subclass of alias\n",
 562                                                         fname, lineno, value );
 563                                                 acl_usage();
 564                                         }
 565
 566                                         if (name && *name) {
 567                                                 rc = slap_str2ad( name, &b->a_group_at, &text );
 568
 569                                                 if( rc != LDAP_SUCCESS ) {
 570                                                         fprintf( stderr,
 571                                                                 "%s: line %d: group \"%s\": %s\n",
 572                                                                 fname, lineno, right, text );
 573                                                         acl_usage();
 574                                                 }
 575                                                 *--name = '/';
 576                                         } else {
 577                                                 rc = slap_str2ad( SLAPD_GROUP_ATTR, &b->a_group_at, &text );
 578
 579                                                 if( rc != LDAP_SUCCESS ) {
 580                                                         fprintf( stderr,
 581                                                                 "%s: line %d: group \"%s\": %s\n",
 582                                                                 fname, lineno, SLAPD_GROUP_ATTR, text );
 583                                                         acl_usage();
 584                                                 }
 585                                         }
 586
 587                                         if( !is_at_syntax( b->a_group_at->ad_type,
 588                                                 SLAPD_DN_SYNTAX ) &&
 589                                             !is_at_syntax( b->a_group_at->ad_type,
 590                                                 SLAPD_NAMEUID_SYNTAX ) )
 591                                         {
 592                                                 fprintf( stderr,
 593                                                         "%s: line %d: group \"%s\": inappropriate syntax: %s\n",
 594                                                         fname, lineno, right,
 595                                                         b->a_group_at->ad_type->sat_syntax_oid );
 596                                                 acl_usage();
 597                                         }
 598
 599
 600                                         {
 601                                                 int rc;
 602                                                 struct berval vals[2];
 603
 604                                                 vals[0].bv_val = b->a_group_oc->soc_oid;
 605                                                 vals[0].bv_len = strlen(vals[0].bv_val);
 606                                                 vals[1].bv_val = NULL;
 607
 608
 609                                                 rc = oc_check_allowed( b->a_group_at->ad_type, vals, NULL );
 610
 611                                                 if( rc != 0 ) {
 612                                                         fprintf( stderr,
 613                                                                 "%s: line %d: group: \"%s\" not allowed by \"%s\"\n",
 614                                                                 fname, lineno,
 615                                                                 b->a_group_at->ad_cname.bv_val,
 616                                                                 b->a_group_oc->soc_oid );
 617                                                         acl_usage();
 618                                                 }
 619                                         }
 620                                         continue;
 621                                 }
 622
 623                                 if ( strcasecmp( left, "peername" ) == 0 ) {
 624                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 625                                                 fprintf( stderr,
 626                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 627                                                     fname, lineno, style );
 628                                                 acl_usage();
 629                                         }
 630
 631                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 632                                                 fprintf( stderr,
 633                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 634                                                         fname, lineno, left );
 635                                                 acl_usage();
 636                                         }
 637
 638                                         if( b->a_peername_pat.bv_len ) {
 639                                                 fprintf( stderr,
 640                                                         "%s: line %d: peername pattern already specified.\n",
 641                                                         fname, lineno );
 642                                                 acl_usage();
 643                                         }
 644
 645                                         b->a_peername_style = sty;
 646                                         if (sty == ACL_STYLE_REGEX) {
 647                                                 acl_regex_normalized_dn( right, &bv );
 648                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 649                                                         regtest(fname, lineno, bv.bv_val);
 650                                                 }
 651                                                 b->a_peername_pat = bv;
 652                                         } else {
 653                                                 ber_str2bv( right, 0, 1, &b->a_peername_pat );
 654                                         }
 655                                         continue;
 656                                 }
 657
 658                                 if ( strcasecmp( left, "sockname" ) == 0 ) {
 659                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 660                                                 fprintf( stderr,
 661                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 662                                                     fname, lineno, style );
 663                                                 acl_usage();
 664                                         }
 665
 666                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 667                                                 fprintf( stderr,
 668                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 669                                                         fname, lineno, left );
 670                                                 acl_usage();
 671                                         }
 672
 673                                         if( b->a_sockname_pat.bv_len ) {
 674                                                 fprintf( stderr,
 675                                                         "%s: line %d: sockname pattern already specified.\n",
 676                                                         fname, lineno );
 677                                                 acl_usage();
 678                                         }
 679
 680                                         b->a_sockname_style = sty;
 681                                         if (sty == ACL_STYLE_REGEX) {
 682                                                 acl_regex_normalized_dn( right, &bv );
 683                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 684                                                         regtest(fname, lineno, bv.bv_val);
 685                                                 }
 686                                                 b->a_sockname_pat = bv;
 687                                         } else {
 688                                                 ber_str2bv( right, 0, 1, &b->a_sockname_pat );
 689                                         }
 690                                         continue;
 691                                 }
 692
 693                                 if ( strcasecmp( left, "domain" ) == 0 ) {
 694                                         switch ( sty ) {
 695                                         case ACL_STYLE_REGEX:
 696                                         case ACL_STYLE_BASE:
 697                                         case ACL_STYLE_SUBTREE:
 698                                                 break;
 699
 700                                         default:
 701                                                 fprintf( stderr,
 702                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 703                                                     fname, lineno, style );
 704                                                 acl_usage();
 705                                         }
 706
 707                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 708                                                 fprintf( stderr,
 709                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 710                                                         fname, lineno, left );
 711                                                 acl_usage();
 712                                         }
 713
 714                                         if( b->a_domain_pat.bv_len ) {
 715                                                 fprintf( stderr,
 716                                                         "%s: line %d: domain pattern already specified.\n",
 717                                                         fname, lineno );
 718                                                 acl_usage();
 719                                         }
 720
 721                                         b->a_domain_style = sty;
 722                                         b->a_domain_expand = expand;
 723                                         if (sty == ACL_STYLE_REGEX) {
 724                                                 acl_regex_normalized_dn( right, &bv );
 725                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 726                                                         regtest(fname, lineno, bv.bv_val);
 727                                                 }
 728                                                 b->a_domain_pat = bv;
 729                                         } else {
 730                                                 ber_str2bv( right, 0, 1, &b->a_domain_pat );
 731                                         }
 732                                         continue;
 733                                 }
 734
 735                                 if ( strcasecmp( left, "sockurl" ) == 0 ) {
 736                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 737                                                 fprintf( stderr,
 738                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 739                                                     fname, lineno, style );
 740                                                 acl_usage();
 741                                         }
 742
 743                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 744                                                 fprintf( stderr,
 745                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 746                                                         fname, lineno, left );
 747                                                 acl_usage();
 748                                         }
 749
 750                                         if( b->a_sockurl_pat.bv_len ) {
 751                                                 fprintf( stderr,
 752                                                         "%s: line %d: sockurl pattern already specified.\n",
 753                                                         fname, lineno );
 754                                                 acl_usage();
 755                                         }
 756
 757                                         b->a_sockurl_style = sty;
 758                                         if (sty == ACL_STYLE_REGEX) {
 759                                                 acl_regex_normalized_dn( right, &bv );
 760                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 761                                                         regtest(fname, lineno, bv.bv_val);
 762                                                 }
 763                                                 b->a_sockurl_pat = bv;
 764                                         } else {
 765                                                 ber_str2bv( right, 0, 1, &b->a_sockurl_pat );
 766                                         }
 767                                         continue;
 768                                 }
 769
 770                                 if ( strcasecmp( left, "set" ) == 0 ) {
 771                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 772                                                 fprintf( stderr,
 773                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 774                                                     fname, lineno, style );
 775                                                 acl_usage();
 776                                         }
 777
 778                                         if( b->a_set_pat.bv_len != 0 ) {
 779                                                 fprintf( stderr,
 780                                                         "%s: line %d: set attribute already specified.\n",
 781                                                         fname, lineno );
 782                                                 acl_usage();
 783                                         }
 784
 785                                         if ( right == NULL || *right == '\0' ) {
 786                                                 fprintf( stderr,
 787                                                         "%s: line %d: no set is defined\n",
 788                                                         fname, lineno );
 789                                                 acl_usage();
 790                                         }
 791
 792                                         b->a_set_style = sty;
 793                                         ber_str2bv( right, 0, 1, &b->a_set_pat );
 794
 795                                         continue;
 796                                 }
 797
 798 #ifdef SLAPD_ACI_ENABLED
 799                                 if ( strcasecmp( left, "aci" ) == 0 ) {
 800                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 801                                                 fprintf( stderr,
 802                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 803                                                     fname, lineno, style );
 804                                                 acl_usage();
 805                                         }
 806
 807                                         if( b->a_aci_at != NULL ) {
 808                                                 fprintf( stderr,
 809                                                         "%s: line %d: aci attribute already specified.\n",
 810                                                         fname, lineno );
 811                                                 acl_usage();
 812                                         }
 813
 814                                         if ( right != NULL && *right != '\0' ) {
 815                                                 rc = slap_str2ad( right, &b->a_aci_at, &text );
 816
 817                                                 if( rc != LDAP_SUCCESS ) {
 818                                                         fprintf( stderr,
 819                                                                 "%s: line %d: aci \"%s\": %s\n",
 820                                                                 fname, lineno, right, text );
 821                                                         acl_usage();
 822                                                 }
 823
 824                                         } else {
 825                                                 b->a_aci_at = slap_schema.si_ad_aci;
 826                                         }
 827
 828                                         if( !is_at_syntax( b->a_aci_at->ad_type,
 829                                                 SLAPD_ACI_SYNTAX) )
 830                                         {
 831                                                 fprintf( stderr,
 832                                                         "%s: line %d: aci \"%s\": inappropriate syntax: %s\n",
 833                                                         fname, lineno, right,
 834                                                         b->a_aci_at->ad_type->sat_syntax_oid );
 835                                                 acl_usage();
 836                                         }
 837
 838                                         continue;
 839                                 }
 840 #endif /* SLAPD_ACI_ENABLED */
 841
 842                                 if ( strcasecmp( left, "ssf" ) == 0 ) {
 843                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 844                                                 fprintf( stderr,
 845                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 846                                                     fname, lineno, style );
 847                                                 acl_usage();
 848                                         }
 849
 850                                         if( b->a_authz.sai_ssf ) {
 851                                                 fprintf( stderr,
 852                                                         "%s: line %d: ssf attribute already specified.\n",
 853                                                         fname, lineno );
 854                                                 acl_usage();
 855                                         }
 856
 857                                         if ( right == NULL || *right == '\0' ) {
 858                                                 fprintf( stderr,
 859                                                         "%s: line %d: no ssf is defined\n",
 860                                                         fname, lineno );
 861                                                 acl_usage();
 862                                         }
 863
 864                                         b->a_authz.sai_ssf = atoi( right );
 865
 866                                         if( !b->a_authz.sai_ssf ) {
 867                                                 fprintf( stderr,
 868                                                         "%s: line %d: invalid ssf value (%s)\n",
 869                                                         fname, lineno, right );
 870                                                 acl_usage();
 871                                         }
 872                                         continue;
 873                                 }
 874
 875                                 if ( strcasecmp( left, "transport_ssf" ) == 0 ) {
 876                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 877                                                 fprintf( stderr,
 878                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 879                                                     fname, lineno, style );
 880                                                 acl_usage();
 881                                         }
 882
 883                                         if( b->a_authz.sai_transport_ssf ) {
 884                                                 fprintf( stderr,
 885                                                         "%s: line %d: transport_ssf attribute already specified.\n",
 886                                                         fname, lineno );
 887                                                 acl_usage();
 888                                         }
 889
 890                                         if ( right == NULL || *right == '\0' ) {
 891                                                 fprintf( stderr,
 892                                                         "%s: line %d: no transport_ssf is defined\n",
 893                                                         fname, lineno );
 894                                                 acl_usage();
 895                                         }
 896
 897                                         b->a_authz.sai_transport_ssf = atoi( right );
 898
 899                                         if( !b->a_authz.sai_transport_ssf ) {
 900                                                 fprintf( stderr,
 901                                                         "%s: line %d: invalid transport_ssf value (%s)\n",
 902                                                         fname, lineno, right );
 903                                                 acl_usage();
 904                                         }
 905                                         continue;
 906                                 }
 907
 908                                 if ( strcasecmp( left, "tls_ssf" ) == 0 ) {
 909                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 910                                                 fprintf( stderr,
 911                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 912                                                     fname, lineno, style );
 913                                                 acl_usage();
 914                                         }
 915
 916                                         if( b->a_authz.sai_tls_ssf ) {
 917                                                 fprintf( stderr,
 918                                                         "%s: line %d: tls_ssf attribute already specified.\n",
 919                                                         fname, lineno );
 920                                                 acl_usage();
 921                                         }
 922
 923                                         if ( right == NULL || *right == '\0' ) {
 924                                                 fprintf( stderr,
 925                                                         "%s: line %d: no tls_ssf is defined\n",
 926                                                         fname, lineno );
 927                                                 acl_usage();
 928                                         }
 929
 930                                         b->a_authz.sai_tls_ssf = atoi( right );
 931
 932                                         if( !b->a_authz.sai_tls_ssf ) {
 933                                                 fprintf( stderr,
 934                                                         "%s: line %d: invalid tls_ssf value (%s)\n",
 935                                                         fname, lineno, right );
 936                                                 acl_usage();
 937                                         }
 938                                         continue;
 939                                 }
 940
 941                                 if ( strcasecmp( left, "sasl_ssf" ) == 0 ) {
 942                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 943                                                 fprintf( stderr,
 944                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 945                                                     fname, lineno, style );
 946                                                 acl_usage();
 947                                         }
 948
 949                                         if( b->a_authz.sai_sasl_ssf ) {
 950                                                 fprintf( stderr,
 951                                                         "%s: line %d: sasl_ssf attribute already specified.\n",
 952                                                         fname, lineno );
 953                                                 acl_usage();
 954                                         }
 955
 956                                         if ( right == NULL || *right == '\0' ) {
 957                                                 fprintf( stderr,
 958                                                         "%s: line %d: no sasl_ssf is defined\n",
 959                                                         fname, lineno );
 960                                                 acl_usage();
 961                                         }
 962
 963                                         b->a_authz.sai_sasl_ssf = atoi( right );
 964
 965                                         if( !b->a_authz.sai_sasl_ssf ) {
 966                                                 fprintf( stderr,
 967                                                         "%s: line %d: invalid sasl_ssf value (%s)\n",
 968                                                         fname, lineno, right );
 969                                                 acl_usage();
 970                                         }
 971                                         continue;
 972                                 }
 973
 974                                 if( right != NULL ) {
 975                                         /* unsplit */
 976                                         right[-1] = '=';
 977                                 }
 978                                 break;
 979                         }
 980
 981                         if( i == argc || ( strcasecmp( left, "stop" ) == 0 )) {
 982                                 /* out of arguments or plain stop */
 983
 984                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
 985                                 b->a_type = ACL_STOP;
 986
 987                                 access_append( &a->acl_access, b );
 988                                 continue;
 989                         }
 990
 991                         if( strcasecmp( left, "continue" ) == 0 ) {
 992                                 /* plain continue */
 993
 994                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
 995                                 b->a_type = ACL_CONTINUE;
 996
 997                                 access_append( &a->acl_access, b );
 998                                 continue;
 999                         }
1000
1001                         if( strcasecmp( left, "break" ) == 0 ) {
1002                                 /* plain continue */
1003
1004                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
1005                                 b->a_type = ACL_BREAK;
1006
1007                                 access_append( &a->acl_access, b );
1008                                 continue;
1009                         }
1010
1011                         if ( strcasecmp( left, "by" ) == 0 ) {
1012                                 /* we've gone too far */
1013                                 --i;
1014                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
1015                                 b->a_type = ACL_STOP;
1016
1017                                 access_append( &a->acl_access, b );
1018                                 continue;
1019                         }
1020
1021                         /* get <access> */
1022                         if( strncasecmp( left, "self", 4 ) == 0 ) {
1023                                 b->a_dn_self = 1;
1024                                 ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( &left[4] ) );
1025
1026                         } else {
1027                                 ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( left ) );
1028                         }
1029
1030                         if( ACL_IS_INVALID( b->a_access_mask ) ) {
1031                                 fprintf( stderr,
1032                                         "%s: line %d: expecting <access> got \"%s\"\n",
1033                                         fname, lineno, left );
1034                                 acl_usage();
1035                         }
1036
1037                         b->a_type = ACL_STOP;
1038
1039                         if( ++i == argc ) {
1040                                 /* out of arguments or plain stop */
1041                                 access_append( &a->acl_access, b );
1042                                 continue;
1043                         }
1044
1045                         if( strcasecmp( argv[i], "continue" ) == 0 ) {
1046                                 /* plain continue */
1047                                 b->a_type = ACL_CONTINUE;
1048
1049                         } else if( strcasecmp( argv[i], "break" ) == 0 ) {
1050                                 /* plain continue */
1051                                 b->a_type = ACL_BREAK;
1052
1053                         } else if ( strcasecmp( argv[i], "stop" ) != 0 ) {
1054                                 /* gone to far */
1055                                 i--;
1056                         }
1057
1058                         access_append( &a->acl_access, b );
1059
1060                 } else {
1061                         fprintf( stderr,
1062                     "%s: line %d: expecting \"to\" or \"by\" got \"%s\"\n",
1063                             fname, lineno, argv[i] );
1064                         acl_usage();
1065                 }
1066         }
1067
1068         /* if we have no real access clause, complain and do nothing */
1069         if ( a == NULL ) {
1070                         fprintf( stderr,
1071                                 "%s: line %d: warning: no access clause(s) specified in access line\n",
1072                             fname, lineno );
1073
1074         } else {
1075 #ifdef LDAP_DEBUG
1076                 if (ldap_debug & LDAP_DEBUG_ACL)
1077                         print_acl(be, a);
1078 #endif
1079
1080                 if ( a->acl_access == NULL ) {
1081                         fprintf( stderr,
1082                         "%s: line %d: warning: no by clause(s) specified in access line\n",
1083                             fname, lineno );
1084                 }
1085
1086                 if ( be != NULL ) {
1087                         acl_append( &be->be_acl, a );
1088                 } else {
1089                         acl_append( &global_acl, a );
1090                 }
1091         }
1092 }
1093
1094 char *
1095 accessmask2str( slap_mask_t mask, char *buf )
1096 {
1097         int none=1;
1098         char *ptr = buf;
1099
1100         assert( buf != NULL );
1101
1102         if ( ACL_IS_INVALID( mask ) ) {
1103                 return "invalid";
1104         }
1105
1106         buf[0] = '\0';
1107
1108         if ( ACL_IS_LEVEL( mask ) ) {
1109                 if ( ACL_LVL_IS_NONE(mask) ) {
1110                         ptr = lutil_strcopy( ptr, "none" );
1111
1112                 } else if ( ACL_LVL_IS_AUTH(mask) ) {
1113                         ptr = lutil_strcopy( ptr, "auth" );
1114
1115                 } else if ( ACL_LVL_IS_COMPARE(mask) ) {
1116                         ptr = lutil_strcopy( ptr, "compare" );
1117
1118                 } else if ( ACL_LVL_IS_SEARCH(mask) ) {
1119                         ptr = lutil_strcopy( ptr, "search" );
1120
1121                 } else if ( ACL_LVL_IS_READ(mask) ) {
1122                         ptr = lutil_strcopy( ptr, "read" );
1123
1124                 } else if ( ACL_LVL_IS_WRITE(mask) ) {
1125                         ptr = lutil_strcopy( ptr, "write" );
1126                 } else {
1127                         ptr = lutil_strcopy( ptr, "unknown" );
1128                 }
1129
1130                 *ptr++ = '(';
1131         }
1132
1133         if( ACL_IS_ADDITIVE( mask ) ) {
1134                 *ptr++ = '+';
1135
1136         } else if( ACL_IS_SUBTRACTIVE( mask ) ) {
1137                 *ptr++ = '-';
1138
1139         } else {
1140                 *ptr++ = '=';
1141         }
1142
1143         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_WRITE) ) {
1144                 none = 0;
1145                 *ptr++ = 'w';
1146         }
1147
1148         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_READ) ) {
1149                 none = 0;
1150                 *ptr++ = 'r';
1151         }
1152
1153         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_SEARCH) ) {
1154                 none = 0;
1155                 *ptr++ = 's';
1156         }
1157
1158         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_COMPARE) ) {
1159                 none = 0;
1160                 *ptr++ = 'c';
1161         }
1162
1163         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_AUTH) ) {
1164                 none = 0;
1165                 *ptr++ = 'x';
1166         }
1167
1168         if ( none && ACL_PRIV_ISSET(mask, ACL_PRIV_NONE) ) {
1169                 none = 0;
1170                 *ptr++ = 'n';
1171         }
1172
1173         if ( none ) {
1174                 *ptr++ = '0';
1175         }
1176
1177         if ( ACL_IS_LEVEL( mask ) ) {
1178                 *ptr++ = ')';
1179         }
1180
1181         *ptr = '\0';
1182
1183         return buf;
1184 }
1185
1186 slap_mask_t
1187 str2accessmask( const char *str )
1188 {
1189         slap_mask_t     mask;
1190
1191         if( !ASCII_ALPHA(str[0]) ) {
1192                 int i;
1193
1194                 if ( str[0] == '=' ) {
1195                         ACL_INIT(mask);
1196
1197                 } else if( str[0] == '+' ) {
1198                         ACL_PRIV_ASSIGN(mask, ACL_PRIV_ADDITIVE);
1199
1200                 } else if( str[0] == '-' ) {
1201                         ACL_PRIV_ASSIGN(mask, ACL_PRIV_SUBSTRACTIVE);
1202
1203                 } else {
1204                         ACL_INVALIDATE(mask);
1205                         return mask;
1206                 }
1207
1208                 for( i=1; str[i] != '\0'; i++ ) {
1209                         if( TOLOWER((unsigned char) str[i]) == 'w' ) {
1210                                 ACL_PRIV_SET(mask, ACL_PRIV_WRITE);
1211
1212                         } else if( TOLOWER((unsigned char) str[i]) == 'r' ) {
1213                                 ACL_PRIV_SET(mask, ACL_PRIV_READ);
1214
1215                         } else if( TOLOWER((unsigned char) str[i]) == 's' ) {
1216                                 ACL_PRIV_SET(mask, ACL_PRIV_SEARCH);
1217
1218                         } else if( TOLOWER((unsigned char) str[i]) == 'c' ) {
1219                                 ACL_PRIV_SET(mask, ACL_PRIV_COMPARE);
1220
1221                         } else if( TOLOWER((unsigned char) str[i]) == 'x' ) {
1222                                 ACL_PRIV_SET(mask, ACL_PRIV_AUTH);
1223
1224                         } else if( str[i] != '0' ) {
1225                                 ACL_INVALIDATE(mask);
1226                                 return mask;
1227                         }
1228                 }
1229
1230                 return mask;
1231         }
1232
1233         if ( strcasecmp( str, "none" ) == 0 ) {
1234                 ACL_LVL_ASSIGN_NONE(mask);
1235
1236         } else if ( strcasecmp( str, "auth" ) == 0 ) {
1237                 ACL_LVL_ASSIGN_AUTH(mask);
1238
1239         } else if ( strcasecmp( str, "compare" ) == 0 ) {
1240                 ACL_LVL_ASSIGN_COMPARE(mask);
1241
1242         } else if ( strcasecmp( str, "search" ) == 0 ) {
1243                 ACL_LVL_ASSIGN_SEARCH(mask);
1244
1245         } else if ( strcasecmp( str, "read" ) == 0 ) {
1246                 ACL_LVL_ASSIGN_READ(mask);
1247
1248         } else if ( strcasecmp( str, "write" ) == 0 ) {
1249                 ACL_LVL_ASSIGN_WRITE(mask);
1250
1251         } else {
1252                 ACL_INVALIDATE( mask );
1253         }
1254
1255         return mask;
1256 }
1257
1258 static void
1259 acl_usage( void )
1260 {
1261         fprintf( stderr, "\n"
1262                 "<access clause> ::= access to <what> "
1263                                 "[ by <who> <access> [ <control> ] ]+ \n"
1264                 "<what> ::= * | [dn[.<dnstyle>]=<regex>] [filter=<ldapfilter>] [attrs=<attrlist>]\n"
1265                 "<attrlist> ::= <attr> | <attr> , <attrlist>\n"
1266                 "<attr> ::= <attrname> | entry | children\n"
1267                 "<who> ::= [ * | anonymous | users | self | dn[.<dnstyle>]=<regex> ]\n"
1268                         "\t[dnattr=<attrname>]\n"
1269                         "\t[group[/<objectclass>[/<attrname>]][.<style>]=<regex>]\n"
1270                         "\t[peername[.<style>]=<regex>] [sockname[.<style>]=<regex>]\n"
1271                         "\t[domain[.<style>]=<regex>] [sockurl[.<style>]=<regex>]\n"
1272 #ifdef SLAPD_ACI_ENABLED
1273                         "\t[aci=<attrname>]\n"
1274 #endif
1275                         "\t[ssf=<n>] [transport_ssf=<n>] [tls_ssf=<n>] [sasl_ssf=<n>]\n"
1276                 "<dnstyle> ::= regex | base | exact (alias of base) | one | sub | children\n"
1277                 "<style> ::= regex | base | exact (alias of base)\n"
1278                 "<groupflags> ::= R\n"
1279                 "<access> ::= [self]{<level>|<priv>}\n"
1280                 "<level> ::= none | auth | compare | search | read | write\n"
1281                 "<priv> ::= {=|+|-}{w|r|s|c|x}+\n"
1282                 "<control> ::= [ stop | continue | break ]\n"
1283                 );
1284         exit( EXIT_FAILURE );
1285 }
1286
1287 /*
1288  * Set pattern to a "normalized" DN from src.
1289  * At present it simply eats the (optional) space after
1290  * a RDN separator (,)
1291  * Eventually will evolve in a more complete normalization
1292  */
1293 static void
1294 acl_regex_normalized_dn(
1295         const char *src,
1296         struct berval *pattern
1297 )
1298 {
1299         char *str, *p;
1300         ber_len_t len;
1301
1302         str = ch_strdup( src );
1303         len = strlen( src );
1304
1305         for ( p = str; p && p[ 0 ]; p++ ) {
1306                 /* escape */
1307                 if ( p[ 0 ] == '\\' && p[ 1 ] ) {
1308                         /*
1309                          * if escaping a hex pair we should
1310                          * increment p twice; however, in that
1311                          * case the second hex number does
1312                          * no harm
1313                          */
1314                         p++;
1315                 }
1316
1317                 if ( p[ 0 ] == ',' ) {
1318                         if ( p[ 1 ] == ' ' ) {
1319                                 char *q;
1320
1321                                 /*
1322                                  * too much space should be
1323                                  * an error if we are pedantic
1324                                  */
1325                                 for ( q = &p[ 2 ]; q[ 0 ] == ' '; q++ ) {
1326                                         /* DO NOTHING */ ;
1327                                 }
1328                                 AC_MEMCPY( p+1, q, len-(q-str)+1);
1329                         }
1330                 }
1331         }
1332         pattern->bv_val = str;
1333         pattern->bv_len = p-str;
1334
1335         return;
1336 }
1337
1338 static void
1339 split(
1340     char        *line,
1341     int         splitchar,
1342     char        **left,
1343     char        **right
1344 )
1345 {
1346         *left = line;
1347         if ( (*right = strchr( line, splitchar )) != NULL ) {
1348                 *((*right)++) = '\0';
1349         }
1350 }
1351
1352 static void
1353 access_append( Access **l, Access *a )
1354 {
1355         for ( ; *l != NULL; l = &(*l)->a_next )
1356                 ;       /* NULL */
1357
1358         *l = a;
1359 }
1360
1361 void
1362 acl_append( AccessControl **l, AccessControl *a )
1363 {
1364         for ( ; *l != NULL; l = &(*l)->acl_next )
1365                 ;       /* NULL */
1366
1367         *l = a;
1368 }
1369
1370 static void
1371 access_free( Access *a )
1372 {
1373         if ( a->a_dn_pat.bv_val )
1374                 free ( a->a_dn_pat.bv_val );
1375         if ( a->a_peername_pat.bv_val )
1376                 free ( a->a_peername_pat.bv_val );
1377         if ( a->a_sockname_pat.bv_val )
1378                 free ( a->a_sockname_pat.bv_val );
1379         if ( a->a_domain_pat.bv_val )
1380                 free ( a->a_domain_pat.bv_val );
1381         if ( a->a_sockurl_pat.bv_val )
1382                 free ( a->a_sockurl_pat.bv_val );
1383         if ( a->a_set_pat.bv_len )
1384                 free ( a->a_set_pat.bv_val );
1385         if ( a->a_group_pat.bv_len )
1386                 free ( a->a_group_pat.bv_val );
1387         free( a );
1388 }
1389
1390 void
1391 acl_free( AccessControl *a )
1392 {
1393         Access *n;
1394         AttributeName *an;
1395
1396         if ( a->acl_filter )
1397                 filter_free( a->acl_filter );
1398         if ( a->acl_dn_pat.bv_len )
1399                 free ( a->acl_dn_pat.bv_val );
1400         if ( a->acl_attrs ) {
1401                 for ( an = a->acl_attrs; an->an_name.bv_val; an++ ) {
1402                         free( an->an_name.bv_val );
1403                 }
1404                 free( a->acl_attrs );
1405         }
1406         for (; a->acl_access; a->acl_access = n) {
1407                 n = a->acl_access->a_next;
1408                 access_free( a->acl_access );
1409         }
1410         free( a );
1411 }
1412
1413 /* Because backend_startup uses acl_append to tack on the global_acl to
1414  * the end of each backend's acl, we cannot just take one argument and
1415  * merrily free our way to the end of the list. backend_destroy calls us
1416  * with the be_acl in arg1, and global_acl in arg2 to give us a stopping
1417  * point. config_destroy calls us with global_acl in arg1 and NULL in
1418  * arg2, so we then proceed to polish off the global_acl.
1419  */
1420 void
1421 acl_destroy( AccessControl *a, AccessControl *end )
1422 {
1423         AccessControl *n;
1424
1425         for (; a && a!= end; a=n) {
1426                 n = a->acl_next;
1427                 acl_free( a );
1428         }
1429 }
1430
1431 char *
1432 access2str( slap_access_t access )
1433 {
1434         if ( access == ACL_NONE ) {
1435                 return "none";
1436
1437         } else if ( access == ACL_AUTH ) {
1438                 return "auth";
1439
1440         } else if ( access == ACL_COMPARE ) {
1441                 return "compare";
1442
1443         } else if ( access == ACL_SEARCH ) {
1444                 return "search";
1445
1446         } else if ( access == ACL_READ ) {
1447                 return "read";
1448
1449         } else if ( access == ACL_WRITE ) {
1450                 return "write";
1451         }
1452
1453         return "unknown";
1454 }
1455
1456 slap_access_t
1457 str2access( const char *str )
1458 {
1459         if ( strcasecmp( str, "none" ) == 0 ) {
1460                 return ACL_NONE;
1461
1462         } else if ( strcasecmp( str, "auth" ) == 0 ) {
1463                 return ACL_AUTH;
1464
1465         } else if ( strcasecmp( str, "compare" ) == 0 ) {
1466                 return ACL_COMPARE;
1467
1468         } else if ( strcasecmp( str, "search" ) == 0 ) {
1469                 return ACL_SEARCH;
1470
1471         } else if ( strcasecmp( str, "read" ) == 0 ) {
1472                 return ACL_READ;
1473
1474         } else if ( strcasecmp( str, "write" ) == 0 ) {
1475                 return ACL_WRITE;
1476         }
1477
1478         return( ACL_INVALID_ACCESS );
1479 }
1480
1481 #ifdef LDAP_DEBUG
1482
1483 static char *style_strings[5] = {
1484                         "regex",
1485                         "base",
1486                         "one",
1487                         "subtree",
1488                         "children"
1489                 };
1490
1491
1492 static void
1493 print_access( Access *b )
1494 {
1495         char maskbuf[ACCESSMASK_MAXLEN];
1496
1497         fprintf( stderr, "\tby" );
1498
1499         if ( b->a_dn_pat.bv_len != 0 ) {
1500                 if( strcmp(b->a_dn_pat.bv_val, "*") == 0
1501                         || strcmp(b->a_dn_pat.bv_val, "users") == 0
1502                         || strcmp(b->a_dn_pat.bv_val, "anonymous") == 0
1503                         || strcmp(b->a_dn_pat.bv_val, "self") == 0 )
1504                 {
1505                         fprintf( stderr, " %s", b->a_dn_pat.bv_val );
1506
1507                 } else {
1508                         fprintf( stderr, " dn.%s=%s",
1509                                 style_strings[b->a_dn_style], b->a_dn_pat.bv_val );
1510                 }
1511         }
1512
1513         if ( b->a_dn_at != NULL ) {
1514                 fprintf( stderr, " dnattr=%s", b->a_dn_at->ad_cname.bv_val );
1515         }
1516
1517         if ( b->a_group_pat.bv_len ) {
1518                 fprintf( stderr, " group=%s", b->a_group_pat.bv_val );
1519
1520                 if ( b->a_group_oc ) {
1521                         fprintf( stderr, " objectClass: %s",
1522                                 b->a_group_oc->soc_oclass.oc_oid );
1523
1524                         if ( b->a_group_at ) {
1525                                 fprintf( stderr, " attributeType: %s", b->a_group_at->ad_cname.bv_val );
1526                         }
1527                 }
1528     }
1529
1530         if ( b->a_peername_pat.bv_len != 0 ) {
1531                 fprintf( stderr, " peername=%s", b->a_peername_pat.bv_val );
1532         }
1533
1534         if ( b->a_sockname_pat.bv_len != 0 ) {
1535                 fprintf( stderr, " sockname=%s", b->a_sockname_pat.bv_val );
1536         }
1537
1538         if ( b->a_domain_pat.bv_len != 0 ) {
1539                 fprintf( stderr, " domain=%s", b->a_domain_pat.bv_val );
1540         }
1541
1542         if ( b->a_sockurl_pat.bv_len != 0 ) {
1543                 fprintf( stderr, " sockurl=%s", b->a_sockurl_pat.bv_val );
1544         }
1545
1546 #ifdef SLAPD_ACI_ENABLED
1547         if ( b->a_aci_at != NULL ) {
1548                 fprintf( stderr, " aci=%s", b->a_aci_at->ad_cname.bv_val );
1549         }
1550 #endif
1551
1552         /* Security Strength Factors */
1553         if ( b->a_authz.sai_ssf ) {
1554                 fprintf( stderr, " ssf=%u",
1555                         b->a_authz.sai_ssf );
1556         }
1557         if ( b->a_authz.sai_transport_ssf ) {
1558                 fprintf( stderr, " transport_ssf=%u",
1559                         b->a_authz.sai_transport_ssf );
1560         }
1561         if ( b->a_authz.sai_tls_ssf ) {
1562                 fprintf( stderr, " tls_ssf=%u",
1563                         b->a_authz.sai_tls_ssf );
1564         }
1565         if ( b->a_authz.sai_sasl_ssf ) {
1566                 fprintf( stderr, " sasl_ssf=%u",
1567                         b->a_authz.sai_sasl_ssf );
1568         }
1569
1570         fprintf( stderr, " %s%s",
1571                 b->a_dn_self ? "self" : "",
1572                 accessmask2str( b->a_access_mask, maskbuf ) );
1573
1574         if( b->a_type == ACL_BREAK ) {
1575                 fprintf( stderr, " break" );
1576
1577         } else if( b->a_type == ACL_CONTINUE ) {
1578                 fprintf( stderr, " continue" );
1579
1580         } else if( b->a_type != ACL_STOP ) {
1581                 fprintf( stderr, " unknown-control" );
1582         }
1583
1584         fprintf( stderr, "\n" );
1585 }
1586
1587
1588 static void
1589 print_acl( Backend *be, AccessControl *a )
1590 {
1591         int             to = 0;
1592         Access  *b;
1593
1594         fprintf( stderr, "%s ACL: access to",
1595                 be == NULL ? "Global" : "Backend" );
1596
1597         if ( a->acl_dn_pat.bv_len != 0 ) {
1598                 to++;
1599                 fprintf( stderr, " dn.%s=%s\n",
1600                         style_strings[a->acl_dn_style], a->acl_dn_pat.bv_val );
1601         }
1602
1603         if ( a->acl_filter != NULL ) {
1604                 struct berval bv = { 0, NULL };
1605                 to++;
1606                 filter2bv( a->acl_filter, &bv );
1607                 fprintf( stderr, " filter=%s\n", bv.bv_val );
1608                 ch_free( bv.bv_val );
1609         }
1610
1611         if ( a->acl_attrs != NULL ) {
1612                 int     first = 1;
1613                 AttributeName *an;
1614                 to++;
1615
1616                 fprintf( stderr, " attrs=" );
1617                 for ( an = a->acl_attrs; an && an->an_name.bv_val; an++ ) {
1618                         if ( ! first ) {
1619                                 fprintf( stderr, "," );
1620                         }
1621                         fputs( an->an_name.bv_val, stderr );
1622                         first = 0;
1623                 }
1624                 fprintf(  stderr, "\n" );
1625         }
1626
1627         if( !to ) {
1628                 fprintf( stderr, " *\n" );
1629         }
1630
1631         for ( b = a->acl_access; b != NULL; b = b->a_next ) {
1632                 print_access( b );
1633         }
1634
1635         fprintf( stderr, "\n" );
1636 }
1637
1638 #endif /* LDAP_DEBUG */