git.sur5r.net Git - openldap/blob - servers/slapd/aclparse.c

   1 /* aclparse.c - routines to parse and check acl's */
   2 /* $OpenLDAP$ */
   3 /*
   4  * Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
   5  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   6  */
   7
   8 #include "portable.h"
   9
  10 #include <stdio.h>
  11
  12 #include <ac/ctype.h>
  13 #include <ac/regex.h>
  14 #include <ac/socket.h>
  15 #include <ac/string.h>
  16 #include <ac/unistd.h>
  17
  18 #include "slap.h"
  19 #include "lber_pvt.h"
  20
  21 static void             split(char *line, int splitchar, char **left, char **right);
  22 static void             access_append(Access **l, Access *a);
  23 static void             acl_usage(void) LDAP_GCCATTR((noreturn));
  24
  25 static void             acl_regex_normalized_dn(const char *src, struct berval *pat);
  26
  27 #ifdef LDAP_DEBUG
  28 static void             print_acl(Backend *be, AccessControl *a);
  29 static void             print_access(Access *b);
  30 #endif
  31
  32 static void
  33 regtest(const char *fname, int lineno, char *pat) {
  34         int e;
  35         regex_t re;
  36
  37         char buf[512];
  38         unsigned size;
  39
  40         char *sp;
  41         char *dp;
  42         int  flag;
  43
  44         sp = pat;
  45         dp = buf;
  46         size = 0;
  47         buf[0] = '\0';
  48
  49         for (size = 0, flag = 0; (size < sizeof(buf)) && *sp; sp++) {
  50                 if (flag) {
  51                         if (*sp == '$'|| (*sp >= '0' && *sp <= '9')) {
  52                                 *dp++ = *sp;
  53                                 size++;
  54                         }
  55                         flag = 0;
  56
  57                 } else {
  58                         if (*sp == '$') {
  59                                 flag = 1;
  60                         } else {
  61                                 *dp++ = *sp;
  62                                 size++;
  63                         }
  64                 }
  65         }
  66
  67         *dp = '\0';
  68         if ( size >= (sizeof(buf)-1) ) {
  69                 fprintf( stderr,
  70                         "%s: line %d: regular expression \"%s\" too large\n",
  71                         fname, lineno, pat );
  72                 acl_usage();
  73         }
  74
  75         if ((e = regcomp(&re, buf, REG_EXTENDED|REG_ICASE))) {
  76                 char error[512];
  77                 regerror(e, &re, error, sizeof(error));
  78                 fprintf( stderr,
  79                         "%s: line %d: regular expression \"%s\" bad because of %s\n",
  80                         fname, lineno, pat, error );
  81                 acl_usage();
  82         }
  83         regfree(&re);
  84 }
  85
  86 void
  87 parse_acl(
  88     Backend     *be,
  89     const char  *fname,
  90     int         lineno,
  91     int         argc,
  92     char        **argv
  93 )
  94 {
  95         int             i;
  96         char            *left, *right, *style;
  97         struct berval   bv;
  98         AccessControl   *a;
  99         Access  *b;
 100         int rc;
 101         const char *text;
 102
 103         a = NULL;
 104         for ( i = 1; i < argc; i++ ) {
 105                 /* to clause - select which entries are protected */
 106                 if ( strcasecmp( argv[i], "to" ) == 0 ) {
 107                         if ( a != NULL ) {
 108                                 fprintf( stderr,
 109                 "%s: line %d: only one to clause allowed in access line\n",
 110                                     fname, lineno );
 111                                 acl_usage();
 112                         }
 113                         a = (AccessControl *) ch_calloc( 1, sizeof(AccessControl) );
 114                         for ( ++i; i < argc; i++ ) {
 115                                 if ( strcasecmp( argv[i], "by" ) == 0 ) {
 116                                         i--;
 117                                         break;
 118                                 }
 119
 120                                 if ( strcasecmp( argv[i], "*" ) == 0 ) {
 121                                         if( a->acl_dn_pat.bv_len ||
 122                                                 ( a->acl_dn_style != ACL_STYLE_REGEX ) )
 123                                         {
 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                                                 ( a->acl_dn_style != ACL_STYLE_REGEX ) )
 149                                         {
 150                                                 fprintf( stderr,
 151                                                         "%s: line %d: dn pattern"
 152                                                         " already specified in to clause.\n",
 153                                                         fname, lineno );
 154                                                 acl_usage();
 155                                         }
 156
 157                                         if ( style == NULL || *style == '\0'
 158                                                 || strcasecmp( style, "regex" ) == 0 )
 159                                         {
 160                                                 a->acl_dn_style = ACL_STYLE_REGEX;
 161
 162                                                 if ( *right == '\0' ) {
 163                                                         /* empty regex should match empty DN */
 164                                                         a->acl_dn_style = ACL_STYLE_BASE;
 165                                                         ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 166
 167                                                 } else if ( strcmp(right, "*") == 0
 168                                                         || strcmp(right, ".*") == 0
 169                                                         || strcmp(right, ".*$") == 0
 170                                                         || strcmp(right, "^.*") == 0
 171                                                         || strcmp(right, "^.*$") == 0
 172                                                         || strcmp(right, ".*$$") == 0
 173                                                         || strcmp(right, "^.*$$") == 0 )
 174                                                 {
 175                                                         a->acl_dn_pat.bv_val = ch_strdup( "*" );
 176                                                         a->acl_dn_pat.bv_len = sizeof("*")-1;
 177
 178                                                 } else {
 179                                                         acl_regex_normalized_dn( right, &a->acl_dn_pat );
 180                                                 }
 181                                         } else if ( strcasecmp( style, "base" ) == 0 ) {
 182                                                 a->acl_dn_style = ACL_STYLE_BASE;
 183                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 184                                         } else if ( strcasecmp( style, "one" ) == 0 ) {
 185                                                 a->acl_dn_style = ACL_STYLE_ONE;
 186                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 187                                         } else if ( strcasecmp( style, "subtree" ) == 0 ) {
 188                                                 a->acl_dn_style = ACL_STYLE_SUBTREE;
 189                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 190                                         } else if ( strcasecmp( style, "children" ) == 0 ) {
 191                                                 a->acl_dn_style = ACL_STYLE_CHILDREN;
 192                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 193                                         } else {
 194                                                 fprintf( stderr,
 195         "%s: line %d: unknown dn style \"%s\" in to clause\n",
 196                                                     fname, lineno, style );
 197                                                 acl_usage();
 198                                         }
 199
 200                                         continue;
 201                                 }
 202
 203                                 if ( strcasecmp( left, "filter" ) == 0 ) {
 204                                         if ( (a->acl_filter = str2filter( 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                                 ( a->acl_dn_style != ACL_STYLE_REGEX ) )
 238                         {
 239                                 if ( a->acl_dn_style != ACL_STYLE_REGEX ) {
 240                                         struct berval bv;
 241                                         rc = dnNormalize2( NULL, &a->acl_dn_pat, &bv);
 242                                         if ( rc != LDAP_SUCCESS ) {
 243                                                 fprintf( stderr,
 244                                                         "%s: line %d: bad DN \"%s\"\n",
 245                                                         fname, lineno, a->acl_dn_pat.bv_val );
 246                                                 acl_usage();
 247                                         }
 248                                         free( a->acl_dn_pat.bv_val );
 249                                         a->acl_dn_pat = bv;
 250                                 } else {
 251                                         int e = regcomp( &a->acl_dn_re, a->acl_dn_pat.bv_val,
 252                                                 REG_EXTENDED | REG_ICASE );
 253                                         if ( e ) {
 254                                                 char buf[512];
 255                                                 regerror( e, &a->acl_dn_re, buf, sizeof(buf) );
 256                                                 fprintf( stderr, "%s: line %d: "
 257                                                         "regular expression \"%s\" bad because of %s\n",
 258                                                         fname, lineno, right, buf );
 259                                                 acl_usage();
 260                                         }
 261                                 }
 262                         }
 263
 264                 /* by clause - select who has what access to entries */
 265                 } else if ( strcasecmp( argv[i], "by" ) == 0 ) {
 266                         if ( a == NULL ) {
 267                                 fprintf( stderr,
 268                                         "%s: line %d: to clause required before by clause in access line\n",
 269                                     fname, lineno );
 270                                 acl_usage();
 271                         }
 272
 273                         /*
 274                          * by clause consists of <who> and <access>
 275                          */
 276
 277                         b = (Access *) ch_calloc( 1, sizeof(Access) );
 278
 279                         ACL_INVALIDATE( b->a_access_mask );
 280
 281                         if ( ++i == argc ) {
 282                                 fprintf( stderr,
 283                             "%s: line %d: premature eol: expecting <who>\n",
 284                                     fname, lineno );
 285                                 acl_usage();
 286                         }
 287
 288                         /* get <who> */
 289                         for ( ; i < argc; i++ ) {
 290                                 slap_style_t sty = ACL_STYLE_REGEX;
 291                                 char *style_modifier = NULL;
 292                                 int expand = 0;
 293
 294                                 split( argv[i], '=', &left, &right );
 295                                 split( left, '.', &left, &style );
 296                                 if ( style ) {
 297                                         split( style, ',', &style, &style_modifier);
 298                                 }
 299                                 if ( style == NULL || *style == '\0'
 300                                         || strcasecmp( style, "regex" ) == 0 )
 301                                 {
 302                                         sty = ACL_STYLE_REGEX;
 303                                 } else if ( strcasecmp( style, "exact" ) == 0 ) {
 304                                         sty = ACL_STYLE_EXACT;
 305                                 } else if ( strcasecmp( style, "base" ) == 0 ) {
 306                                         sty = ACL_STYLE_BASE;
 307                                 } else if ( strcasecmp( style, "one" ) == 0 ) {
 308                                         sty = ACL_STYLE_ONE;
 309                                 } else if ( strcasecmp( style, "subtree" ) == 0 ) {
 310                                         sty = ACL_STYLE_SUBTREE;
 311                                 } else if ( strcasecmp( style, "children" ) == 0 ) {
 312                                         sty = ACL_STYLE_CHILDREN;
 313                                 } else {
 314                                         fprintf( stderr,
 315                                                 "%s: line %d: unknown style \"%s\" in by clause\n",
 316                                             fname, lineno, style );
 317                                         acl_usage();
 318                                 }
 319
 320                                 if ( style_modifier && strcasecmp( style_modifier, "expand" ) == 0 ) {
 321                                         expand = 1;
 322                                 }
 323
 324                                 if ( strcasecmp( argv[i], "*" ) == 0 ) {
 325                                         bv.bv_val = ch_strdup( "*" );
 326                                         bv.bv_len = 1;
 327
 328                                 } else if ( strcasecmp( argv[i], "anonymous" ) == 0 ) {
 329                                         ber_str2bv("anonymous",
 330                                                 sizeof("anonymous")-1,
 331                                                 1, &bv);
 332
 333                                 } else if ( strcasecmp( argv[i], "self" ) == 0 ) {
 334                                         ber_str2bv("self",
 335                                                 sizeof("self")-1,
 336                                                 1, &bv);
 337
 338                                 } else if ( strcasecmp( argv[i], "users" ) == 0 ) {
 339                                         ber_str2bv("users",
 340                                                 sizeof("users")-1,
 341                                                 1, &bv);
 342
 343                                 } else if ( strcasecmp( left, "dn" ) == 0 ) {
 344                                         if ( sty == ACL_STYLE_REGEX ) {
 345                                                 b->a_dn_style = ACL_STYLE_REGEX;
 346                                                 if( right == NULL ) {
 347                                                         /* no '=' */
 348                                                         ber_str2bv("users",
 349                                                                 sizeof("users")-1,
 350                                                                 1, &bv);
 351                                                 } else if (*right == '\0' ) {
 352                                                         /* dn="" */
 353                                                         ber_str2bv("anonymous",
 354                                                                 sizeof("anonymous")-1,
 355                                                                 1, &bv);
 356                                                 } else if ( strcmp( right, "*" ) == 0 ) {
 357                                                         /* dn=* */
 358                                                         /* any or users?  users for now */
 359                                                         ber_str2bv("users",
 360                                                                 sizeof("users")-1,
 361                                                                 1, &bv);
 362                                                 } else if ( strcmp( right, ".+" ) == 0
 363                                                         || strcmp( right, "^.+" ) == 0
 364                                                         || strcmp( right, ".+$" ) == 0
 365                                                         || strcmp( right, "^.+$" ) == 0
 366                                                         || strcmp( right, ".+$$" ) == 0
 367                                                         || strcmp( right, "^.+$$" ) == 0 )
 368                                                 {
 369                                                         ber_str2bv("users",
 370                                                                 sizeof("users")-1,
 371                                                                 1, &bv);
 372                                                 } else if ( strcmp( right, ".*" ) == 0
 373                                                         || strcmp( right, "^.*" ) == 0
 374                                                         || strcmp( right, ".*$" ) == 0
 375                                                         || strcmp( right, "^.*$" ) == 0
 376                                                         || strcmp( right, ".*$$" ) == 0
 377                                                         || strcmp( right, "^.*$$" ) == 0 )
 378                                                 {
 379                                                         ber_str2bv("*",
 380                                                                 sizeof("*")-1,
 381                                                                 1, &bv);
 382
 383                                                 } else {
 384                                                         acl_regex_normalized_dn( right, &bv );
 385                                                         if ( !ber_bvccmp( &bv, '*' ) ) {
 386                                                                 regtest(fname, lineno, bv.bv_val);
 387                                                         }
 388                                                 }
 389                                         } else if ( right == NULL || *right == '\0' ) {
 390                                                 fprintf( stderr,
 391                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 392                                                     fname, lineno, left );
 393                                                 acl_usage();
 394
 395                                         } else {
 396                                                 ber_str2bv( right, 0, 1, &bv );
 397                                         }
 398
 399                                 } else {
 400                                         bv.bv_val = NULL;
 401                                 }
 402
 403                                 if( bv.bv_val != NULL ) {
 404                                         if( b->a_dn_pat.bv_len != 0 ) {
 405                                                 fprintf( stderr,
 406                                                     "%s: line %d: dn pattern already specified.\n",
 407                                                     fname, lineno );
 408                                                 acl_usage();
 409                                         }
 410
 411                                         if ( sty != ACL_STYLE_REGEX && expand == 0 ) {
 412                                                 rc = dnNormalize2(NULL, &bv, &b->a_dn_pat);
 413                                                 if ( rc != LDAP_SUCCESS ) {
 414                                                         fprintf( stderr,
 415                                                                 "%s: line %d: bad DN \"%s\"\n",
 416                                                                 fname, lineno, bv.bv_val );
 417                                                         acl_usage();
 418                                                 }
 419                                                 free(bv.bv_val);
 420                                         } else {
 421                                                 b->a_dn_pat = bv;
 422                                         }
 423                                         b->a_dn_style = sty;
 424                                         b->a_dn_expand = expand;
 425                                         continue;
 426                                 }
 427
 428                                 if ( strcasecmp( left, "dnattr" ) == 0 ) {
 429                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 430                                                 fprintf( stderr,
 431                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 432                                                         fname, lineno, left );
 433                                                 acl_usage();
 434                                         }
 435
 436                                         if( b->a_dn_at != NULL ) {
 437                                                 fprintf( stderr,
 438                                                         "%s: line %d: dnattr already specified.\n",
 439                                                         fname, lineno );
 440                                                 acl_usage();
 441                                         }
 442
 443                                         rc = slap_str2ad( right, &b->a_dn_at, &text );
 444
 445                                         if( rc != LDAP_SUCCESS ) {
 446                                                 fprintf( stderr,
 447                                                         "%s: line %d: dnattr \"%s\": %s\n",
 448                                                         fname, lineno, right, text );
 449                                                 acl_usage();
 450                                         }
 451
 452
 453                                         if( !is_at_syntax( b->a_dn_at->ad_type,
 454                                                 SLAPD_DN_SYNTAX ) &&
 455                                                 !is_at_syntax( b->a_dn_at->ad_type,
 456                                                 SLAPD_NAMEUID_SYNTAX ))
 457                                         {
 458                                                 fprintf( stderr,
 459                                                         "%s: line %d: dnattr \"%s\": "
 460                                                         "inappropriate syntax: %s\n",
 461                                                         fname, lineno, right,
 462                                                         b->a_dn_at->ad_type->sat_syntax_oid );
 463                                                 acl_usage();
 464                                         }
 465
 466                                         continue;
 467                                 }
 468
 469                                 if ( strncasecmp( left, "group", sizeof("group")-1 ) == 0 ) {
 470                                         char *name = NULL;
 471                                         char *value = NULL;
 472
 473                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 474                                                 fprintf( stderr,
 475                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 476                                                     fname, lineno, style );
 477                                                 acl_usage();
 478                                         }
 479
 480                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 481                                                 fprintf( stderr,
 482                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 483                                                         fname, lineno, left );
 484                                                 acl_usage();
 485                                         }
 486
 487                                         if( b->a_group_pat.bv_len ) {
 488                                                 fprintf( stderr,
 489                                                         "%s: line %d: group pattern already specified.\n",
 490                                                         fname, lineno );
 491                                                 acl_usage();
 492                                         }
 493
 494                                         /* format of string is "group/objectClassValue/groupAttrName" */
 495                                         if ((value = strchr(left, '/')) != NULL) {
 496                                                 *value++ = '\0';
 497                                                 if (*value
 498                                                         && (name = strchr(value, '/')) != NULL)
 499                                                 {
 500                                                         *name++ = '\0';
 501                                                 }
 502                                         }
 503
 504                                         b->a_group_style = sty;
 505                                         if (sty == ACL_STYLE_REGEX) {
 506                                                 acl_regex_normalized_dn( right, &bv );
 507                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 508                                                         regtest(fname, lineno, bv.bv_val);
 509                                                 }
 510                                                 b->a_group_pat = bv;
 511                                         } else {
 512                                                 ber_str2bv( right, 0, 0, &bv );
 513                                                 rc = dnNormalize2( NULL, &bv, &b->a_group_pat );
 514                                                 if ( rc != LDAP_SUCCESS ) {
 515                                                         fprintf( stderr,
 516                                                                 "%s: line %d: bad DN \"%s\"\n",
 517                                                                 fname, lineno, right );
 518                                                         acl_usage();
 519                                                 }
 520                                         }
 521
 522                                         if (value && *value) {
 523                                                 b->a_group_oc = oc_find( value );
 524                                                 *--value = '/';
 525
 526                                                 if( b->a_group_oc == NULL ) {
 527                                                         fprintf( stderr,
 528                                                                 "%s: line %d: group objectclass "
 529                                                                 "\"%s\" unknown\n",
 530                                                                 fname, lineno, value );
 531                                                         acl_usage();
 532                                                 }
 533                                         } else {
 534                                                 b->a_group_oc = oc_find(SLAPD_GROUP_CLASS);
 535
 536                                                 if( b->a_group_oc == NULL ) {
 537                                                         fprintf( stderr,
 538                                                                 "%s: line %d: group default objectclass "
 539                                                                 "\"%s\" unknown\n",
 540                                                                 fname, lineno, SLAPD_GROUP_CLASS );
 541                                                         acl_usage();
 542                                                 }
 543                                         }
 544
 545                                         if( is_object_subclass( slap_schema.si_oc_referral,
 546                                                 b->a_group_oc ))
 547                                         {
 548                                                 fprintf( stderr,
 549                                                         "%s: line %d: group objectclass \"%s\" "
 550                                                         "is subclass of referral\n",
 551                                                         fname, lineno, value );
 552                                                 acl_usage();
 553                                         }
 554
 555                                         if( is_object_subclass( slap_schema.si_oc_alias,
 556                                                 b->a_group_oc ))
 557                                         {
 558                                                 fprintf( stderr,
 559                                                         "%s: line %d: group objectclass \"%s\" "
 560                                                         "is subclass of alias\n",
 561                                                         fname, lineno, value );
 562                                                 acl_usage();
 563                                         }
 564
 565                                         if (name && *name) {
 566                                                 rc = slap_str2ad( name, &b->a_group_at, &text );
 567
 568                                                 if( rc != LDAP_SUCCESS ) {
 569                                                         fprintf( stderr,
 570                                                                 "%s: line %d: group \"%s\": %s\n",
 571                                                                 fname, lineno, right, text );
 572                                                         acl_usage();
 573                                                 }
 574                                                 *--name = '/';
 575                                         } else {
 576                                                 rc = slap_str2ad( SLAPD_GROUP_ATTR, &b->a_group_at, &text );
 577
 578                                                 if( rc != LDAP_SUCCESS ) {
 579                                                         fprintf( stderr,
 580                                                                 "%s: line %d: group \"%s\": %s\n",
 581                                                                 fname, lineno, SLAPD_GROUP_ATTR, text );
 582                                                         acl_usage();
 583                                                 }
 584                                         }
 585
 586                                         if( !is_at_syntax( b->a_group_at->ad_type,
 587                                                 SLAPD_DN_SYNTAX ) &&
 588                                             !is_at_syntax( b->a_group_at->ad_type,
 589                                                 SLAPD_NAMEUID_SYNTAX ) )
 590                                         {
 591                                                 fprintf( stderr,
 592                                                         "%s: line %d: group \"%s\": inappropriate syntax: %s\n",
 593                                                         fname, lineno, right,
 594                                                         b->a_group_at->ad_type->sat_syntax_oid );
 595                                                 acl_usage();
 596                                         }
 597
 598
 599                                         {
 600                                                 int rc;
 601                                                 struct berval vals[2];
 602
 603                                                 vals[0].bv_val = b->a_group_oc->soc_oid;
 604                                                 vals[0].bv_len = strlen(vals[0].bv_val);
 605                                                 vals[1].bv_val = NULL;
 606
 607
 608                                                 rc = oc_check_allowed( b->a_group_at->ad_type, vals, NULL );
 609
 610                                                 if( rc != 0 ) {
 611                                                         fprintf( stderr,
 612                                                                 "%s: line %d: group: \"%s\" not allowed by \"%s\"\n",
 613                                                                 fname, lineno,
 614                                                                 b->a_group_at->ad_cname.bv_val,
 615                                                                 b->a_group_oc->soc_oid );
 616                                                         acl_usage();
 617                                                 }
 618                                         }
 619                                         continue;
 620                                 }
 621
 622                                 if ( strcasecmp( left, "peername" ) == 0 ) {
 623                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 624                                                 fprintf( stderr,
 625                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 626                                                     fname, lineno, style );
 627                                                 acl_usage();
 628                                         }
 629
 630                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 631                                                 fprintf( stderr,
 632                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 633                                                         fname, lineno, left );
 634                                                 acl_usage();
 635                                         }
 636
 637                                         if( b->a_peername_pat.bv_len ) {
 638                                                 fprintf( stderr,
 639                                                         "%s: line %d: peername pattern already specified.\n",
 640                                                         fname, lineno );
 641                                                 acl_usage();
 642                                         }
 643
 644                                         b->a_peername_style = sty;
 645                                         if (sty == ACL_STYLE_REGEX) {
 646                                                 acl_regex_normalized_dn( right, &bv );
 647                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 648                                                         regtest(fname, lineno, bv.bv_val);
 649                                                 }
 650                                                 b->a_peername_pat = bv;
 651                                         } else {
 652                                                 ber_str2bv( right, 0, 1, &b->a_peername_pat );
 653                                         }
 654                                         continue;
 655                                 }
 656
 657                                 if ( strcasecmp( left, "sockname" ) == 0 ) {
 658                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 659                                                 fprintf( stderr,
 660                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 661                                                     fname, lineno, style );
 662                                                 acl_usage();
 663                                         }
 664
 665                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 666                                                 fprintf( stderr,
 667                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 668                                                         fname, lineno, left );
 669                                                 acl_usage();
 670                                         }
 671
 672                                         if( b->a_sockname_pat.bv_len ) {
 673                                                 fprintf( stderr,
 674                                                         "%s: line %d: sockname pattern already specified.\n",
 675                                                         fname, lineno );
 676                                                 acl_usage();
 677                                         }
 678
 679                                         b->a_sockname_style = sty;
 680                                         if (sty == ACL_STYLE_REGEX) {
 681                                                 acl_regex_normalized_dn( right, &bv );
 682                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 683                                                         regtest(fname, lineno, bv.bv_val);
 684                                                 }
 685                                                 b->a_sockname_pat = bv;
 686                                         } else {
 687                                                 ber_str2bv( right, 0, 1, &b->a_sockname_pat );
 688                                         }
 689                                         continue;
 690                                 }
 691
 692                                 if ( strcasecmp( left, "domain" ) == 0 ) {
 693                                         switch ( sty ) {
 694                                         case ACL_STYLE_REGEX:
 695                                         case ACL_STYLE_BASE:
 696                                         case ACL_STYLE_SUBTREE:
 697                                                 break;
 698
 699                                         default:
 700                                                 fprintf( stderr,
 701                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 702                                                     fname, lineno, style );
 703                                                 acl_usage();
 704                                         }
 705
 706                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 707                                                 fprintf( stderr,
 708                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 709                                                         fname, lineno, left );
 710                                                 acl_usage();
 711                                         }
 712
 713                                         if( b->a_domain_pat.bv_len ) {
 714                                                 fprintf( stderr,
 715                                                         "%s: line %d: domain pattern already specified.\n",
 716                                                         fname, lineno );
 717                                                 acl_usage();
 718                                         }
 719
 720                                         b->a_domain_style = sty;
 721                                         b->a_domain_expand = expand;
 722                                         if (sty == ACL_STYLE_REGEX) {
 723                                                 acl_regex_normalized_dn( right, &bv );
 724                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 725                                                         regtest(fname, lineno, bv.bv_val);
 726                                                 }
 727                                                 b->a_domain_pat = bv;
 728                                         } else {
 729                                                 ber_str2bv( right, 0, 1, &b->a_domain_pat );
 730                                         }
 731                                         continue;
 732                                 }
 733
 734                                 if ( strcasecmp( left, "sockurl" ) == 0 ) {
 735                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 736                                                 fprintf( stderr,
 737                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 738                                                     fname, lineno, style );
 739                                                 acl_usage();
 740                                         }
 741
 742                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 743                                                 fprintf( stderr,
 744                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 745                                                         fname, lineno, left );
 746                                                 acl_usage();
 747                                         }
 748
 749                                         if( b->a_sockurl_pat.bv_len ) {
 750                                                 fprintf( stderr,
 751                                                         "%s: line %d: sockurl pattern already specified.\n",
 752                                                         fname, lineno );
 753                                                 acl_usage();
 754                                         }
 755
 756                                         b->a_sockurl_style = sty;
 757                                         if (sty == ACL_STYLE_REGEX) {
 758                                                 acl_regex_normalized_dn( right, &bv );
 759                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 760                                                         regtest(fname, lineno, bv.bv_val);
 761                                                 }
 762                                                 b->a_sockurl_pat = bv;
 763                                         } else {
 764                                                 ber_str2bv( right, 0, 1, &b->a_sockurl_pat );
 765                                         }
 766                                         continue;
 767                                 }
 768
 769                                 if ( strcasecmp( left, "set" ) == 0 ) {
 770                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 771                                                 fprintf( stderr,
 772                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 773                                                     fname, lineno, style );
 774                                                 acl_usage();
 775                                         }
 776
 777                                         if( b->a_set_pat.bv_len != 0 ) {
 778                                                 fprintf( stderr,
 779                                                         "%s: line %d: set attribute already specified.\n",
 780                                                         fname, lineno );
 781                                                 acl_usage();
 782                                         }
 783
 784                                         if ( right == NULL || *right == '\0' ) {
 785                                                 fprintf( stderr,
 786                                                         "%s: line %d: no set is defined\n",
 787                                                         fname, lineno );
 788                                                 acl_usage();
 789                                         }
 790
 791                                         b->a_set_style = sty;
 792                                         ber_str2bv( right, 0, 1, &b->a_set_pat );
 793
 794                                         continue;
 795                                 }
 796
 797 #ifdef SLAPD_ACI_ENABLED
 798                                 if ( strcasecmp( left, "aci" ) == 0 ) {
 799                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 800                                                 fprintf( stderr,
 801                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 802                                                     fname, lineno, style );
 803                                                 acl_usage();
 804                                         }
 805
 806                                         if( b->a_aci_at != NULL ) {
 807                                                 fprintf( stderr,
 808                                                         "%s: line %d: aci attribute already specified.\n",
 809                                                         fname, lineno );
 810                                                 acl_usage();
 811                                         }
 812
 813                                         if ( right != NULL && *right != '\0' ) {
 814                                                 rc = slap_str2ad( right, &b->a_aci_at, &text );
 815
 816                                                 if( rc != LDAP_SUCCESS ) {
 817                                                         fprintf( stderr,
 818                                                                 "%s: line %d: aci \"%s\": %s\n",
 819                                                                 fname, lineno, right, text );
 820                                                         acl_usage();
 821                                                 }
 822
 823                                         } else {
 824                                                 b->a_aci_at = slap_schema.si_ad_aci;
 825                                         }
 826
 827                                         if( !is_at_syntax( b->a_aci_at->ad_type,
 828                                                 SLAPD_ACI_SYNTAX) )
 829                                         {
 830                                                 fprintf( stderr,
 831                                                         "%s: line %d: aci \"%s\": inappropriate syntax: %s\n",
 832                                                         fname, lineno, right,
 833                                                         b->a_aci_at->ad_type->sat_syntax_oid );
 834                                                 acl_usage();
 835                                         }
 836
 837                                         continue;
 838                                 }
 839 #endif /* SLAPD_ACI_ENABLED */
 840
 841                                 if ( strcasecmp( left, "ssf" ) == 0 ) {
 842                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 843                                                 fprintf( stderr,
 844                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 845                                                     fname, lineno, style );
 846                                                 acl_usage();
 847                                         }
 848
 849                                         if( b->a_authz.sai_ssf ) {
 850                                                 fprintf( stderr,
 851                                                         "%s: line %d: ssf attribute already specified.\n",
 852                                                         fname, lineno );
 853                                                 acl_usage();
 854                                         }
 855
 856                                         if ( right == NULL || *right == '\0' ) {
 857                                                 fprintf( stderr,
 858                                                         "%s: line %d: no ssf is defined\n",
 859                                                         fname, lineno );
 860                                                 acl_usage();
 861                                         }
 862
 863                                         b->a_authz.sai_ssf = atoi( right );
 864
 865                                         if( !b->a_authz.sai_ssf ) {
 866                                                 fprintf( stderr,
 867                                                         "%s: line %d: invalid ssf value (%s)\n",
 868                                                         fname, lineno, right );
 869                                                 acl_usage();
 870                                         }
 871                                         continue;
 872                                 }
 873
 874                                 if ( strcasecmp( left, "transport_ssf" ) == 0 ) {
 875                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 876                                                 fprintf( stderr,
 877                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 878                                                     fname, lineno, style );
 879                                                 acl_usage();
 880                                         }
 881
 882                                         if( b->a_authz.sai_transport_ssf ) {
 883                                                 fprintf( stderr,
 884                                                         "%s: line %d: transport_ssf attribute already specified.\n",
 885                                                         fname, lineno );
 886                                                 acl_usage();
 887                                         }
 888
 889                                         if ( right == NULL || *right == '\0' ) {
 890                                                 fprintf( stderr,
 891                                                         "%s: line %d: no transport_ssf is defined\n",
 892                                                         fname, lineno );
 893                                                 acl_usage();
 894                                         }
 895
 896                                         b->a_authz.sai_transport_ssf = atoi( right );
 897
 898                                         if( !b->a_authz.sai_transport_ssf ) {
 899                                                 fprintf( stderr,
 900                                                         "%s: line %d: invalid transport_ssf value (%s)\n",
 901                                                         fname, lineno, right );
 902                                                 acl_usage();
 903                                         }
 904                                         continue;
 905                                 }
 906
 907                                 if ( strcasecmp( left, "tls_ssf" ) == 0 ) {
 908                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 909                                                 fprintf( stderr,
 910                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 911                                                     fname, lineno, style );
 912                                                 acl_usage();
 913                                         }
 914
 915                                         if( b->a_authz.sai_tls_ssf ) {
 916                                                 fprintf( stderr,
 917                                                         "%s: line %d: tls_ssf attribute already specified.\n",
 918                                                         fname, lineno );
 919                                                 acl_usage();
 920                                         }
 921
 922                                         if ( right == NULL || *right == '\0' ) {
 923                                                 fprintf( stderr,
 924                                                         "%s: line %d: no tls_ssf is defined\n",
 925                                                         fname, lineno );
 926                                                 acl_usage();
 927                                         }
 928
 929                                         b->a_authz.sai_tls_ssf = atoi( right );
 930
 931                                         if( !b->a_authz.sai_tls_ssf ) {
 932                                                 fprintf( stderr,
 933                                                         "%s: line %d: invalid tls_ssf value (%s)\n",
 934                                                         fname, lineno, right );
 935                                                 acl_usage();
 936                                         }
 937                                         continue;
 938                                 }
 939
 940                                 if ( strcasecmp( left, "sasl_ssf" ) == 0 ) {
 941                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 942                                                 fprintf( stderr,
 943                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 944                                                     fname, lineno, style );
 945                                                 acl_usage();
 946                                         }
 947
 948                                         if( b->a_authz.sai_sasl_ssf ) {
 949                                                 fprintf( stderr,
 950                                                         "%s: line %d: sasl_ssf attribute already specified.\n",
 951                                                         fname, lineno );
 952                                                 acl_usage();
 953                                         }
 954
 955                                         if ( right == NULL || *right == '\0' ) {
 956                                                 fprintf( stderr,
 957                                                         "%s: line %d: no sasl_ssf is defined\n",
 958                                                         fname, lineno );
 959                                                 acl_usage();
 960                                         }
 961
 962                                         b->a_authz.sai_sasl_ssf = atoi( right );
 963
 964                                         if( !b->a_authz.sai_sasl_ssf ) {
 965                                                 fprintf( stderr,
 966                                                         "%s: line %d: invalid sasl_ssf value (%s)\n",
 967                                                         fname, lineno, right );
 968                                                 acl_usage();
 969                                         }
 970                                         continue;
 971                                 }
 972
 973                                 if( right != NULL ) {
 974                                         /* unsplit */
 975                                         right[-1] = '=';
 976                                 }
 977                                 break;
 978                         }
 979
 980                         if( i == argc || ( strcasecmp( left, "stop" ) == 0 )) {
 981                                 /* out of arguments or plain stop */
 982
 983                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
 984                                 b->a_type = ACL_STOP;
 985
 986                                 access_append( &a->acl_access, b );
 987                                 continue;
 988                         }
 989
 990                         if( strcasecmp( left, "continue" ) == 0 ) {
 991                                 /* plain continue */
 992
 993                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
 994                                 b->a_type = ACL_CONTINUE;
 995
 996                                 access_append( &a->acl_access, b );
 997                                 continue;
 998                         }
 999
1000                         if( strcasecmp( left, "break" ) == 0 ) {
1001                                 /* plain continue */
1002
1003                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
1004                                 b->a_type = ACL_BREAK;
1005
1006                                 access_append( &a->acl_access, b );
1007                                 continue;
1008                         }
1009
1010                         if ( strcasecmp( left, "by" ) == 0 ) {
1011                                 /* we've gone too far */
1012                                 --i;
1013                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
1014                                 b->a_type = ACL_STOP;
1015
1016                                 access_append( &a->acl_access, b );
1017                                 continue;
1018                         }
1019
1020                         /* get <access> */
1021                         if( strncasecmp( left, "self", 4 ) == 0 ) {
1022                                 b->a_dn_self = 1;
1023                                 ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( &left[4] ) );
1024
1025                         } else {
1026                                 ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( left ) );
1027                         }
1028
1029                         if( ACL_IS_INVALID( b->a_access_mask ) ) {
1030                                 fprintf( stderr,
1031                                         "%s: line %d: expecting <access> got \"%s\"\n",
1032                                         fname, lineno, left );
1033                                 acl_usage();
1034                         }
1035
1036                         b->a_type = ACL_STOP;
1037
1038                         if( ++i == argc ) {
1039                                 /* out of arguments or plain stop */
1040                                 access_append( &a->acl_access, b );
1041                                 continue;
1042                         }
1043
1044                         if( strcasecmp( argv[i], "continue" ) == 0 ) {
1045                                 /* plain continue */
1046                                 b->a_type = ACL_CONTINUE;
1047
1048                         } else if( strcasecmp( argv[i], "break" ) == 0 ) {
1049                                 /* plain continue */
1050                                 b->a_type = ACL_BREAK;
1051
1052                         } else if ( strcasecmp( argv[i], "stop" ) != 0 ) {
1053                                 /* gone to far */
1054                                 i--;
1055                         }
1056
1057                         access_append( &a->acl_access, b );
1058
1059                 } else {
1060                         fprintf( stderr,
1061                     "%s: line %d: expecting \"to\" or \"by\" got \"%s\"\n",
1062                             fname, lineno, argv[i] );
1063                         acl_usage();
1064                 }
1065         }
1066
1067         /* if we have no real access clause, complain and do nothing */
1068         if ( a == NULL ) {
1069                         fprintf( stderr,
1070                                 "%s: line %d: warning: no access clause(s) specified in access line\n",
1071                             fname, lineno );
1072
1073         } else {
1074 #ifdef LDAP_DEBUG
1075                 if (ldap_debug & LDAP_DEBUG_ACL)
1076                         print_acl(be, a);
1077 #endif
1078
1079                 if ( a->acl_access == NULL ) {
1080                         fprintf( stderr,
1081                         "%s: line %d: warning: no by clause(s) specified in access line\n",
1082                             fname, lineno );
1083                 }
1084
1085                 if ( be != NULL ) {
1086                         acl_append( &be->be_acl, a );
1087                 } else {
1088                         acl_append( &global_acl, a );
1089                 }
1090         }
1091 }
1092
1093 char *
1094 accessmask2str( slap_mask_t mask, char *buf )
1095 {
1096         int none=1;
1097         char *ptr = buf;
1098
1099         assert( buf != NULL );
1100
1101         if ( ACL_IS_INVALID( mask ) ) {
1102                 return "invalid";
1103         }
1104
1105         buf[0] = '\0';
1106
1107         if ( ACL_IS_LEVEL( mask ) ) {
1108                 if ( ACL_LVL_IS_NONE(mask) ) {
1109                         ptr = lutil_strcopy( ptr, "none" );
1110
1111                 } else if ( ACL_LVL_IS_AUTH(mask) ) {
1112                         ptr = lutil_strcopy( ptr, "auth" );
1113
1114                 } else if ( ACL_LVL_IS_COMPARE(mask) ) {
1115                         ptr = lutil_strcopy( ptr, "compare" );
1116
1117                 } else if ( ACL_LVL_IS_SEARCH(mask) ) {
1118                         ptr = lutil_strcopy( ptr, "search" );
1119
1120                 } else if ( ACL_LVL_IS_READ(mask) ) {
1121                         ptr = lutil_strcopy( ptr, "read" );
1122
1123                 } else if ( ACL_LVL_IS_WRITE(mask) ) {
1124                         ptr = lutil_strcopy( ptr, "write" );
1125                 } else {
1126                         ptr = lutil_strcopy( ptr, "unknown" );
1127                 }
1128
1129                 *ptr++ = '(';
1130         }
1131
1132         if( ACL_IS_ADDITIVE( mask ) ) {
1133                 *ptr++ = '+';
1134
1135         } else if( ACL_IS_SUBTRACTIVE( mask ) ) {
1136                 *ptr++ = '-';
1137
1138         } else {
1139                 *ptr++ = '=';
1140         }
1141
1142         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_WRITE) ) {
1143                 none = 0;
1144                 *ptr++ = 'w';
1145         }
1146
1147         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_READ) ) {
1148                 none = 0;
1149                 *ptr++ = 'r';
1150         }
1151
1152         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_SEARCH) ) {
1153                 none = 0;
1154                 *ptr++ = 's';
1155         }
1156
1157         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_COMPARE) ) {
1158                 none = 0;
1159                 *ptr++ = 'c';
1160         }
1161
1162         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_AUTH) ) {
1163                 none = 0;
1164                 *ptr++ = 'x';
1165         }
1166
1167         if ( none && ACL_PRIV_ISSET(mask, ACL_PRIV_NONE) ) {
1168                 none = 0;
1169                 *ptr++ = 'n';
1170         }
1171
1172         if ( none ) {
1173                 *ptr++ = '0';
1174         }
1175
1176         if ( ACL_IS_LEVEL( mask ) ) {
1177                 *ptr++ = ')';
1178         }
1179
1180         *ptr = '\0';
1181
1182         return buf;
1183 }
1184
1185 slap_mask_t
1186 str2accessmask( const char *str )
1187 {
1188         slap_mask_t     mask;
1189
1190         if( !ASCII_ALPHA(str[0]) ) {
1191                 int i;
1192
1193                 if ( str[0] == '=' ) {
1194                         ACL_INIT(mask);
1195
1196                 } else if( str[0] == '+' ) {
1197                         ACL_PRIV_ASSIGN(mask, ACL_PRIV_ADDITIVE);
1198
1199                 } else if( str[0] == '-' ) {
1200                         ACL_PRIV_ASSIGN(mask, ACL_PRIV_SUBSTRACTIVE);
1201
1202                 } else {
1203                         ACL_INVALIDATE(mask);
1204                         return mask;
1205                 }
1206
1207                 for( i=1; str[i] != '\0'; i++ ) {
1208                         if( TOLOWER((unsigned char) str[i]) == 'w' ) {
1209                                 ACL_PRIV_SET(mask, ACL_PRIV_WRITE);
1210
1211                         } else if( TOLOWER((unsigned char) str[i]) == 'r' ) {
1212                                 ACL_PRIV_SET(mask, ACL_PRIV_READ);
1213
1214                         } else if( TOLOWER((unsigned char) str[i]) == 's' ) {
1215                                 ACL_PRIV_SET(mask, ACL_PRIV_SEARCH);
1216
1217                         } else if( TOLOWER((unsigned char) str[i]) == 'c' ) {
1218                                 ACL_PRIV_SET(mask, ACL_PRIV_COMPARE);
1219
1220                         } else if( TOLOWER((unsigned char) str[i]) == 'x' ) {
1221                                 ACL_PRIV_SET(mask, ACL_PRIV_AUTH);
1222
1223                         } else if( str[i] != '0' ) {
1224                                 ACL_INVALIDATE(mask);
1225                                 return mask;
1226                         }
1227                 }
1228
1229                 return mask;
1230         }
1231
1232         if ( strcasecmp( str, "none" ) == 0 ) {
1233                 ACL_LVL_ASSIGN_NONE(mask);
1234
1235         } else if ( strcasecmp( str, "auth" ) == 0 ) {
1236                 ACL_LVL_ASSIGN_AUTH(mask);
1237
1238         } else if ( strcasecmp( str, "compare" ) == 0 ) {
1239                 ACL_LVL_ASSIGN_COMPARE(mask);
1240
1241         } else if ( strcasecmp( str, "search" ) == 0 ) {
1242                 ACL_LVL_ASSIGN_SEARCH(mask);
1243
1244         } else if ( strcasecmp( str, "read" ) == 0 ) {
1245                 ACL_LVL_ASSIGN_READ(mask);
1246
1247         } else if ( strcasecmp( str, "write" ) == 0 ) {
1248                 ACL_LVL_ASSIGN_WRITE(mask);
1249
1250         } else {
1251                 ACL_INVALIDATE( mask );
1252         }
1253
1254         return mask;
1255 }
1256
1257 static void
1258 acl_usage( void )
1259 {
1260         fprintf( stderr, "\n"
1261                 "<access clause> ::= access to <what> "
1262                                 "[ by <who> <access> [ <control> ] ]+ \n"
1263                 "<what> ::= * | [dn[.<dnstyle>]=<regex>] [filter=<ldapfilter>] [attrs=<attrlist>]\n"
1264                 "<attrlist> ::= <attr> | <attr> , <attrlist>\n"
1265                 "<attr> ::= <attrname> | entry | children\n"
1266                 "<who> ::= [ * | anonymous | users | self | dn[.<dnstyle>]=<regex> ]\n"
1267                         "\t[dnattr=<attrname>]\n"
1268                         "\t[group[/<objectclass>[/<attrname>]][.<style>]=<regex>]\n"
1269                         "\t[peername[.<style>]=<regex>] [sockname[.<style>]=<regex>]\n"
1270                         "\t[domain[.<style>]=<regex>] [sockurl[.<style>]=<regex>]\n"
1271 #ifdef SLAPD_ACI_ENABLED
1272                         "\t[aci=<attrname>]\n"
1273 #endif
1274                         "\t[ssf=<n>] [transport_ssf=<n>] [tls_ssf=<n>] [sasl_ssf=<n>]\n"
1275                 "<dnstyle> ::= regex | base | exact (alias of base) | one | sub | children\n"
1276                 "<style> ::= regex | base | exact (alias of base)\n"
1277                 "<groupflags> ::= R\n"
1278                 "<access> ::= [self]{<level>|<priv>}\n"
1279                 "<level> ::= none | auth | compare | search | read | write\n"
1280                 "<priv> ::= {=|+|-}{w|r|s|c|x}+\n"
1281                 "<control> ::= [ stop | continue | break ]\n"
1282                 );
1283         exit( EXIT_FAILURE );
1284 }
1285
1286 /*
1287  * Set pattern to a "normalized" DN from src.
1288  * At present it simply eats the (optional) space after
1289  * a RDN separator (,)
1290  * Eventually will evolve in a more complete normalization
1291  */
1292 static void
1293 acl_regex_normalized_dn(
1294         const char *src,
1295         struct berval *pattern
1296 )
1297 {
1298         char *str, *p;
1299         ber_len_t len;
1300
1301         str = ch_strdup( src );
1302         len = strlen( src );
1303
1304         for ( p = str; p && p[ 0 ]; p++ ) {
1305                 /* escape */
1306                 if ( p[ 0 ] == '\\' && p[ 1 ] ) {
1307                         /*
1308                          * if escaping a hex pair we should
1309                          * increment p twice; however, in that
1310                          * case the second hex number does
1311                          * no harm
1312                          */
1313                         p++;
1314                 }
1315
1316                 if ( p[ 0 ] == ',' ) {
1317                         if ( p[ 1 ] == ' ' ) {
1318                                 char *q;
1319
1320                                 /*
1321                                  * too much space should be
1322                                  * an error if we are pedantic
1323                                  */
1324                                 for ( q = &p[ 2 ]; q[ 0 ] == ' '; q++ ) {
1325                                         /* DO NOTHING */ ;
1326                                 }
1327                                 AC_MEMCPY( p+1, q, len-(q-str)+1);
1328                         }
1329                 }
1330         }
1331         pattern->bv_val = str;
1332         pattern->bv_len = p-str;
1333
1334         return;
1335 }
1336
1337 static void
1338 split(
1339     char        *line,
1340     int         splitchar,
1341     char        **left,
1342     char        **right
1343 )
1344 {
1345         *left = line;
1346         if ( (*right = strchr( line, splitchar )) != NULL ) {
1347                 *((*right)++) = '\0';
1348         }
1349 }
1350
1351 static void
1352 access_append( Access **l, Access *a )
1353 {
1354         for ( ; *l != NULL; l = &(*l)->a_next )
1355                 ;       /* NULL */
1356
1357         *l = a;
1358 }
1359
1360 void
1361 acl_append( AccessControl **l, AccessControl *a )
1362 {
1363         for ( ; *l != NULL; l = &(*l)->acl_next )
1364                 ;       /* NULL */
1365
1366         *l = a;
1367 }
1368
1369 static void
1370 access_free( Access *a )
1371 {
1372         if ( a->a_dn_pat.bv_val )
1373                 free ( a->a_dn_pat.bv_val );
1374         if ( a->a_peername_pat.bv_val )
1375                 free ( a->a_peername_pat.bv_val );
1376         if ( a->a_sockname_pat.bv_val )
1377                 free ( a->a_sockname_pat.bv_val );
1378         if ( a->a_domain_pat.bv_val )
1379                 free ( a->a_domain_pat.bv_val );
1380         if ( a->a_sockurl_pat.bv_val )
1381                 free ( a->a_sockurl_pat.bv_val );
1382         if ( a->a_set_pat.bv_len )
1383                 free ( a->a_set_pat.bv_val );
1384         if ( a->a_group_pat.bv_len )
1385                 free ( a->a_group_pat.bv_val );
1386         free( a );
1387 }
1388
1389 void
1390 acl_free( AccessControl *a )
1391 {
1392         Access *n;
1393         AttributeName *an;
1394
1395         if ( a->acl_filter )
1396                 filter_free( a->acl_filter );
1397         if ( a->acl_dn_pat.bv_len )
1398                 free ( a->acl_dn_pat.bv_val );
1399         if ( a->acl_attrs ) {
1400                 for ( an = a->acl_attrs; an->an_name.bv_val; an++ ) {
1401                         free( an->an_name.bv_val );
1402                 }
1403                 free( a->acl_attrs );
1404         }
1405         for (; a->acl_access; a->acl_access = n) {
1406                 n = a->acl_access->a_next;
1407                 access_free( a->acl_access );
1408         }
1409         free( a );
1410 }
1411
1412 /* Because backend_startup uses acl_append to tack on the global_acl to
1413  * the end of each backend's acl, we cannot just take one argument and
1414  * merrily free our way to the end of the list. backend_destroy calls us
1415  * with the be_acl in arg1, and global_acl in arg2 to give us a stopping
1416  * point. config_destroy calls us with global_acl in arg1 and NULL in
1417  * arg2, so we then proceed to polish off the global_acl.
1418  */
1419 void
1420 acl_destroy( AccessControl *a, AccessControl *end )
1421 {
1422         AccessControl *n;
1423
1424         for (; a && a!= end; a=n) {
1425                 n = a->acl_next;
1426                 acl_free( a );
1427         }
1428 }
1429
1430 char *
1431 access2str( slap_access_t access )
1432 {
1433         if ( access == ACL_NONE ) {
1434                 return "none";
1435
1436         } else if ( access == ACL_AUTH ) {
1437                 return "auth";
1438
1439         } else if ( access == ACL_COMPARE ) {
1440                 return "compare";
1441
1442         } else if ( access == ACL_SEARCH ) {
1443                 return "search";
1444
1445         } else if ( access == ACL_READ ) {
1446                 return "read";
1447
1448         } else if ( access == ACL_WRITE ) {
1449                 return "write";
1450         }
1451
1452         return "unknown";
1453 }
1454
1455 slap_access_t
1456 str2access( const char *str )
1457 {
1458         if ( strcasecmp( str, "none" ) == 0 ) {
1459                 return ACL_NONE;
1460
1461         } else if ( strcasecmp( str, "auth" ) == 0 ) {
1462                 return ACL_AUTH;
1463
1464         } else if ( strcasecmp( str, "compare" ) == 0 ) {
1465                 return ACL_COMPARE;
1466
1467         } else if ( strcasecmp( str, "search" ) == 0 ) {
1468                 return ACL_SEARCH;
1469
1470         } else if ( strcasecmp( str, "read" ) == 0 ) {
1471                 return ACL_READ;
1472
1473         } else if ( strcasecmp( str, "write" ) == 0 ) {
1474                 return ACL_WRITE;
1475         }
1476
1477         return( ACL_INVALID_ACCESS );
1478 }
1479
1480 #ifdef LDAP_DEBUG
1481
1482 static char *style_strings[5] = {
1483                         "regex",
1484                         "base",
1485                         "one",
1486                         "subtree",
1487                         "children"
1488                 };
1489
1490
1491 static void
1492 print_access( Access *b )
1493 {
1494         char maskbuf[ACCESSMASK_MAXLEN];
1495
1496         fprintf( stderr, "\tby" );
1497
1498         if ( b->a_dn_pat.bv_len != 0 ) {
1499                 if( strcmp(b->a_dn_pat.bv_val, "*") == 0
1500                         || strcmp(b->a_dn_pat.bv_val, "users") == 0
1501                         || strcmp(b->a_dn_pat.bv_val, "anonymous") == 0
1502                         || strcmp(b->a_dn_pat.bv_val, "self") == 0 )
1503                 {
1504                         fprintf( stderr, " %s", b->a_dn_pat.bv_val );
1505
1506                 } else {
1507                         fprintf( stderr, " dn.%s=%s",
1508                                 style_strings[b->a_dn_style], b->a_dn_pat.bv_val );
1509                 }
1510         }
1511
1512         if ( b->a_dn_at != NULL ) {
1513                 fprintf( stderr, " dnattr=%s", b->a_dn_at->ad_cname.bv_val );
1514         }
1515
1516         if ( b->a_group_pat.bv_len ) {
1517                 fprintf( stderr, " group=%s", b->a_group_pat.bv_val );
1518
1519                 if ( b->a_group_oc ) {
1520                         fprintf( stderr, " objectClass: %s",
1521                                 b->a_group_oc->soc_oclass.oc_oid );
1522
1523                         if ( b->a_group_at ) {
1524                                 fprintf( stderr, " attributeType: %s", b->a_group_at->ad_cname.bv_val );
1525                         }
1526                 }
1527     }
1528
1529         if ( b->a_peername_pat.bv_len != 0 ) {
1530                 fprintf( stderr, " peername=%s", b->a_peername_pat.bv_val );
1531         }
1532
1533         if ( b->a_sockname_pat.bv_len != 0 ) {
1534                 fprintf( stderr, " sockname=%s", b->a_sockname_pat.bv_val );
1535         }
1536
1537         if ( b->a_domain_pat.bv_len != 0 ) {
1538                 fprintf( stderr, " domain=%s", b->a_domain_pat.bv_val );
1539         }
1540
1541         if ( b->a_sockurl_pat.bv_len != 0 ) {
1542                 fprintf( stderr, " sockurl=%s", b->a_sockurl_pat.bv_val );
1543         }
1544
1545 #ifdef SLAPD_ACI_ENABLED
1546         if ( b->a_aci_at != NULL ) {
1547                 fprintf( stderr, " aci=%s", b->a_aci_at->ad_cname.bv_val );
1548         }
1549 #endif
1550
1551         /* Security Strength Factors */
1552         if ( b->a_authz.sai_ssf ) {
1553                 fprintf( stderr, " ssf=%u",
1554                         b->a_authz.sai_ssf );
1555         }
1556         if ( b->a_authz.sai_transport_ssf ) {
1557                 fprintf( stderr, " transport_ssf=%u",
1558                         b->a_authz.sai_transport_ssf );
1559         }
1560         if ( b->a_authz.sai_tls_ssf ) {
1561                 fprintf( stderr, " tls_ssf=%u",
1562                         b->a_authz.sai_tls_ssf );
1563         }
1564         if ( b->a_authz.sai_sasl_ssf ) {
1565                 fprintf( stderr, " sasl_ssf=%u",
1566                         b->a_authz.sai_sasl_ssf );
1567         }
1568
1569         fprintf( stderr, " %s%s",
1570                 b->a_dn_self ? "self" : "",
1571                 accessmask2str( b->a_access_mask, maskbuf ) );
1572
1573         if( b->a_type == ACL_BREAK ) {
1574                 fprintf( stderr, " break" );
1575
1576         } else if( b->a_type == ACL_CONTINUE ) {
1577                 fprintf( stderr, " continue" );
1578
1579         } else if( b->a_type != ACL_STOP ) {
1580                 fprintf( stderr, " unknown-control" );
1581         }
1582
1583         fprintf( stderr, "\n" );
1584 }
1585
1586
1587 static void
1588 print_acl( Backend *be, AccessControl *a )
1589 {
1590         int             to = 0;
1591         Access  *b;
1592
1593         fprintf( stderr, "%s ACL: access to",
1594                 be == NULL ? "Global" : "Backend" );
1595
1596         if ( a->acl_dn_pat.bv_len != 0 ) {
1597                 to++;
1598                 fprintf( stderr, " dn.%s=%s\n",
1599                         style_strings[a->acl_dn_style], a->acl_dn_pat.bv_val );
1600         }
1601
1602         if ( a->acl_filter != NULL ) {
1603                 struct berval bv = { 0, NULL };
1604                 to++;
1605                 filter2bv( a->acl_filter, &bv );
1606                 fprintf( stderr, " filter=%s\n", bv.bv_val );
1607                 ch_free( bv.bv_val );
1608         }
1609
1610         if ( a->acl_attrs != NULL ) {
1611                 int     first = 1;
1612                 AttributeName *an;
1613                 to++;
1614
1615                 fprintf( stderr, " attrs=" );
1616                 for ( an = a->acl_attrs; an && an->an_name.bv_val; an++ ) {
1617                         if ( ! first ) {
1618                                 fprintf( stderr, "," );
1619                         }
1620                         fputs( an->an_name.bv_val, stderr );
1621                         first = 0;
1622                 }
1623                 fprintf(  stderr, "\n" );
1624         }
1625
1626         if( !to ) {
1627                 fprintf( stderr, " *\n" );
1628         }
1629
1630         for ( b = a->acl_access; b != NULL; b = b->a_next ) {
1631                 print_access( b );
1632         }
1633
1634         fprintf( stderr, "\n" );
1635 }
1636
1637 #endif /* LDAP_DEBUG */