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 1998-2003 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 || strcasecmp( style, "sub" ) == 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 = dnNormalize( 0, NULL, NULL, &a->acl_dn_pat, &bv, NULL);
 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 || strcasecmp( style, "sub" ) == 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 = dnNormalize(0, NULL, NULL, &bv, &b->a_dn_pat, NULL);
 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                                         if( b->a_dn_at->ad_type->sat_equality == NULL )
 468                                         {
 469                                                 fprintf( stderr,
 470                                                         "%s: line %d: dnattr \"%s\": "
 471                                                         "inappropriate matching (no EQUALITY)\n",
 472                                                         fname, lineno, right );
 473                                                 acl_usage();
 474                                         }
 475
 476                                         continue;
 477                                 }
 478
 479                                 if ( strncasecmp( left, "group", sizeof("group")-1 ) == 0 ) {
 480                                         char *name = NULL;
 481                                         char *value = NULL;
 482
 483                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 484                                                 fprintf( stderr,
 485                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 486                                                     fname, lineno, style );
 487                                                 acl_usage();
 488                                         }
 489
 490                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 491                                                 fprintf( stderr,
 492                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 493                                                         fname, lineno, left );
 494                                                 acl_usage();
 495                                         }
 496
 497                                         if( b->a_group_pat.bv_len ) {
 498                                                 fprintf( stderr,
 499                                                         "%s: line %d: group pattern already specified.\n",
 500                                                         fname, lineno );
 501                                                 acl_usage();
 502                                         }
 503
 504                                         /* format of string is "group/objectClassValue/groupAttrName" */
 505                                         if ((value = strchr(left, '/')) != NULL) {
 506                                                 *value++ = '\0';
 507                                                 if (*value
 508                                                         && (name = strchr(value, '/')) != NULL)
 509                                                 {
 510                                                         *name++ = '\0';
 511                                                 }
 512                                         }
 513
 514                                         b->a_group_style = sty;
 515                                         if (sty == ACL_STYLE_REGEX) {
 516                                                 acl_regex_normalized_dn( right, &bv );
 517                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 518                                                         regtest(fname, lineno, bv.bv_val);
 519                                                 }
 520                                                 b->a_group_pat = bv;
 521                                         } else {
 522                                                 ber_str2bv( right, 0, 0, &bv );
 523                                                 rc = dnNormalize( 0, NULL, NULL, &bv, &b->a_group_pat, NULL );
 524                                                 if ( rc != LDAP_SUCCESS ) {
 525                                                         fprintf( stderr,
 526                                                                 "%s: line %d: bad DN \"%s\"\n",
 527                                                                 fname, lineno, right );
 528                                                         acl_usage();
 529                                                 }
 530                                         }
 531
 532                                         if (value && *value) {
 533                                                 b->a_group_oc = oc_find( value );
 534                                                 *--value = '/';
 535
 536                                                 if( b->a_group_oc == NULL ) {
 537                                                         fprintf( stderr,
 538                                                                 "%s: line %d: group objectclass "
 539                                                                 "\"%s\" unknown\n",
 540                                                                 fname, lineno, value );
 541                                                         acl_usage();
 542                                                 }
 543                                         } else {
 544                                                 b->a_group_oc = oc_find(SLAPD_GROUP_CLASS);
 545
 546                                                 if( b->a_group_oc == NULL ) {
 547                                                         fprintf( stderr,
 548                                                                 "%s: line %d: group default objectclass "
 549                                                                 "\"%s\" unknown\n",
 550                                                                 fname, lineno, SLAPD_GROUP_CLASS );
 551                                                         acl_usage();
 552                                                 }
 553                                         }
 554
 555                                         if( is_object_subclass( slap_schema.si_oc_referral,
 556                                                 b->a_group_oc ))
 557                                         {
 558                                                 fprintf( stderr,
 559                                                         "%s: line %d: group objectclass \"%s\" "
 560                                                         "is subclass of referral\n",
 561                                                         fname, lineno, value );
 562                                                 acl_usage();
 563                                         }
 564
 565                                         if( is_object_subclass( slap_schema.si_oc_alias,
 566                                                 b->a_group_oc ))
 567                                         {
 568                                                 fprintf( stderr,
 569                                                         "%s: line %d: group objectclass \"%s\" "
 570                                                         "is subclass of alias\n",
 571                                                         fname, lineno, value );
 572                                                 acl_usage();
 573                                         }
 574
 575                                         if (name && *name) {
 576                                                 rc = slap_str2ad( name, &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, right, text );
 582                                                         acl_usage();
 583                                                 }
 584                                                 *--name = '/';
 585                                         } else {
 586                                                 rc = slap_str2ad( SLAPD_GROUP_ATTR, &b->a_group_at, &text );
 587
 588                                                 if( rc != LDAP_SUCCESS ) {
 589                                                         fprintf( stderr,
 590                                                                 "%s: line %d: group \"%s\": %s\n",
 591                                                                 fname, lineno, SLAPD_GROUP_ATTR, text );
 592                                                         acl_usage();
 593                                                 }
 594                                         }
 595
 596                                         if( !is_at_syntax( b->a_group_at->ad_type,
 597                                                 SLAPD_DN_SYNTAX ) &&
 598                                             !is_at_syntax( b->a_group_at->ad_type,
 599                                                 SLAPD_NAMEUID_SYNTAX ) )
 600                                         {
 601                                                 fprintf( stderr,
 602                                                         "%s: line %d: group \"%s\": inappropriate syntax: %s\n",
 603                                                         fname, lineno, right,
 604                                                         b->a_group_at->ad_type->sat_syntax_oid );
 605                                                 acl_usage();
 606                                         }
 607
 608
 609                                         {
 610                                                 int rc;
 611                                                 struct berval vals[2];
 612
 613                                                 vals[0].bv_val = b->a_group_oc->soc_oid;
 614                                                 vals[0].bv_len = strlen(vals[0].bv_val);
 615                                                 vals[1].bv_val = NULL;
 616
 617
 618                                                 rc = oc_check_allowed( b->a_group_at->ad_type, vals, NULL );
 619
 620                                                 if( rc != 0 ) {
 621                                                         fprintf( stderr,
 622                                                                 "%s: line %d: group: \"%s\" not allowed by \"%s\"\n",
 623                                                                 fname, lineno,
 624                                                                 b->a_group_at->ad_cname.bv_val,
 625                                                                 b->a_group_oc->soc_oid );
 626                                                         acl_usage();
 627                                                 }
 628                                         }
 629                                         continue;
 630                                 }
 631
 632                                 if ( strcasecmp( left, "peername" ) == 0 ) {
 633                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 634                                                 fprintf( stderr,
 635                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 636                                                     fname, lineno, style );
 637                                                 acl_usage();
 638                                         }
 639
 640                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 641                                                 fprintf( stderr,
 642                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 643                                                         fname, lineno, left );
 644                                                 acl_usage();
 645                                         }
 646
 647                                         if( b->a_peername_pat.bv_len ) {
 648                                                 fprintf( stderr,
 649                                                         "%s: line %d: peername pattern already specified.\n",
 650                                                         fname, lineno );
 651                                                 acl_usage();
 652                                         }
 653
 654                                         b->a_peername_style = sty;
 655                                         if (sty == ACL_STYLE_REGEX) {
 656                                                 acl_regex_normalized_dn( right, &bv );
 657                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 658                                                         regtest(fname, lineno, bv.bv_val);
 659                                                 }
 660                                                 b->a_peername_pat = bv;
 661                                         } else {
 662                                                 ber_str2bv( right, 0, 1, &b->a_peername_pat );
 663                                         }
 664                                         continue;
 665                                 }
 666
 667                                 if ( strcasecmp( left, "sockname" ) == 0 ) {
 668                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 669                                                 fprintf( stderr,
 670                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 671                                                     fname, lineno, style );
 672                                                 acl_usage();
 673                                         }
 674
 675                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 676                                                 fprintf( stderr,
 677                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 678                                                         fname, lineno, left );
 679                                                 acl_usage();
 680                                         }
 681
 682                                         if( b->a_sockname_pat.bv_len ) {
 683                                                 fprintf( stderr,
 684                                                         "%s: line %d: sockname pattern already specified.\n",
 685                                                         fname, lineno );
 686                                                 acl_usage();
 687                                         }
 688
 689                                         b->a_sockname_style = sty;
 690                                         if (sty == ACL_STYLE_REGEX) {
 691                                                 acl_regex_normalized_dn( right, &bv );
 692                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 693                                                         regtest(fname, lineno, bv.bv_val);
 694                                                 }
 695                                                 b->a_sockname_pat = bv;
 696                                         } else {
 697                                                 ber_str2bv( right, 0, 1, &b->a_sockname_pat );
 698                                         }
 699                                         continue;
 700                                 }
 701
 702                                 if ( strcasecmp( left, "domain" ) == 0 ) {
 703                                         switch ( sty ) {
 704                                         case ACL_STYLE_REGEX:
 705                                         case ACL_STYLE_BASE:
 706                                         case ACL_STYLE_SUBTREE:
 707                                                 break;
 708
 709                                         default:
 710                                                 fprintf( stderr,
 711                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 712                                                     fname, lineno, style );
 713                                                 acl_usage();
 714                                         }
 715
 716                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 717                                                 fprintf( stderr,
 718                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 719                                                         fname, lineno, left );
 720                                                 acl_usage();
 721                                         }
 722
 723                                         if( b->a_domain_pat.bv_len ) {
 724                                                 fprintf( stderr,
 725                                                         "%s: line %d: domain pattern already specified.\n",
 726                                                         fname, lineno );
 727                                                 acl_usage();
 728                                         }
 729
 730                                         b->a_domain_style = sty;
 731                                         b->a_domain_expand = expand;
 732                                         if (sty == ACL_STYLE_REGEX) {
 733                                                 acl_regex_normalized_dn( right, &bv );
 734                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 735                                                         regtest(fname, lineno, bv.bv_val);
 736                                                 }
 737                                                 b->a_domain_pat = bv;
 738                                         } else {
 739                                                 ber_str2bv( right, 0, 1, &b->a_domain_pat );
 740                                         }
 741                                         continue;
 742                                 }
 743
 744                                 if ( strcasecmp( left, "sockurl" ) == 0 ) {
 745                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 746                                                 fprintf( stderr,
 747                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 748                                                     fname, lineno, style );
 749                                                 acl_usage();
 750                                         }
 751
 752                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 753                                                 fprintf( stderr,
 754                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 755                                                         fname, lineno, left );
 756                                                 acl_usage();
 757                                         }
 758
 759                                         if( b->a_sockurl_pat.bv_len ) {
 760                                                 fprintf( stderr,
 761                                                         "%s: line %d: sockurl pattern already specified.\n",
 762                                                         fname, lineno );
 763                                                 acl_usage();
 764                                         }
 765
 766                                         b->a_sockurl_style = sty;
 767                                         if (sty == ACL_STYLE_REGEX) {
 768                                                 acl_regex_normalized_dn( right, &bv );
 769                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 770                                                         regtest(fname, lineno, bv.bv_val);
 771                                                 }
 772                                                 b->a_sockurl_pat = bv;
 773                                         } else {
 774                                                 ber_str2bv( right, 0, 1, &b->a_sockurl_pat );
 775                                         }
 776                                         continue;
 777                                 }
 778
 779                                 if ( strcasecmp( left, "set" ) == 0 ) {
 780                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 781                                                 fprintf( stderr,
 782                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 783                                                     fname, lineno, style );
 784                                                 acl_usage();
 785                                         }
 786
 787                                         if( b->a_set_pat.bv_len != 0 ) {
 788                                                 fprintf( stderr,
 789                                                         "%s: line %d: set attribute already specified.\n",
 790                                                         fname, lineno );
 791                                                 acl_usage();
 792                                         }
 793
 794                                         if ( right == NULL || *right == '\0' ) {
 795                                                 fprintf( stderr,
 796                                                         "%s: line %d: no set is defined\n",
 797                                                         fname, lineno );
 798                                                 acl_usage();
 799                                         }
 800
 801                                         b->a_set_style = sty;
 802                                         ber_str2bv( right, 0, 1, &b->a_set_pat );
 803
 804                                         continue;
 805                                 }
 806
 807 #ifdef SLAPD_ACI_ENABLED
 808                                 if ( strcasecmp( left, "aci" ) == 0 ) {
 809                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 810                                                 fprintf( stderr,
 811                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 812                                                     fname, lineno, style );
 813                                                 acl_usage();
 814                                         }
 815
 816                                         if( b->a_aci_at != NULL ) {
 817                                                 fprintf( stderr,
 818                                                         "%s: line %d: aci attribute already specified.\n",
 819                                                         fname, lineno );
 820                                                 acl_usage();
 821                                         }
 822
 823                                         if ( right != NULL && *right != '\0' ) {
 824                                                 rc = slap_str2ad( right, &b->a_aci_at, &text );
 825
 826                                                 if( rc != LDAP_SUCCESS ) {
 827                                                         fprintf( stderr,
 828                                                                 "%s: line %d: aci \"%s\": %s\n",
 829                                                                 fname, lineno, right, text );
 830                                                         acl_usage();
 831                                                 }
 832
 833                                         } else {
 834                                                 b->a_aci_at = slap_schema.si_ad_aci;
 835                                         }
 836
 837                                         if( !is_at_syntax( b->a_aci_at->ad_type,
 838                                                 SLAPD_ACI_SYNTAX) )
 839                                         {
 840                                                 fprintf( stderr,
 841                                                         "%s: line %d: aci \"%s\": inappropriate syntax: %s\n",
 842                                                         fname, lineno, right,
 843                                                         b->a_aci_at->ad_type->sat_syntax_oid );
 844                                                 acl_usage();
 845                                         }
 846
 847                                         continue;
 848                                 }
 849 #endif /* SLAPD_ACI_ENABLED */
 850
 851                                 if ( strcasecmp( left, "ssf" ) == 0 ) {
 852                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 853                                                 fprintf( stderr,
 854                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 855                                                     fname, lineno, style );
 856                                                 acl_usage();
 857                                         }
 858
 859                                         if( b->a_authz.sai_ssf ) {
 860                                                 fprintf( stderr,
 861                                                         "%s: line %d: ssf attribute already specified.\n",
 862                                                         fname, lineno );
 863                                                 acl_usage();
 864                                         }
 865
 866                                         if ( right == NULL || *right == '\0' ) {
 867                                                 fprintf( stderr,
 868                                                         "%s: line %d: no ssf is defined\n",
 869                                                         fname, lineno );
 870                                                 acl_usage();
 871                                         }
 872
 873                                         b->a_authz.sai_ssf = atoi( right );
 874
 875                                         if( !b->a_authz.sai_ssf ) {
 876                                                 fprintf( stderr,
 877                                                         "%s: line %d: invalid ssf value (%s)\n",
 878                                                         fname, lineno, right );
 879                                                 acl_usage();
 880                                         }
 881                                         continue;
 882                                 }
 883
 884                                 if ( strcasecmp( left, "transport_ssf" ) == 0 ) {
 885                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 886                                                 fprintf( stderr,
 887                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 888                                                     fname, lineno, style );
 889                                                 acl_usage();
 890                                         }
 891
 892                                         if( b->a_authz.sai_transport_ssf ) {
 893                                                 fprintf( stderr,
 894                                                         "%s: line %d: transport_ssf attribute already specified.\n",
 895                                                         fname, lineno );
 896                                                 acl_usage();
 897                                         }
 898
 899                                         if ( right == NULL || *right == '\0' ) {
 900                                                 fprintf( stderr,
 901                                                         "%s: line %d: no transport_ssf is defined\n",
 902                                                         fname, lineno );
 903                                                 acl_usage();
 904                                         }
 905
 906                                         b->a_authz.sai_transport_ssf = atoi( right );
 907
 908                                         if( !b->a_authz.sai_transport_ssf ) {
 909                                                 fprintf( stderr,
 910                                                         "%s: line %d: invalid transport_ssf value (%s)\n",
 911                                                         fname, lineno, right );
 912                                                 acl_usage();
 913                                         }
 914                                         continue;
 915                                 }
 916
 917                                 if ( strcasecmp( left, "tls_ssf" ) == 0 ) {
 918                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 919                                                 fprintf( stderr,
 920                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 921                                                     fname, lineno, style );
 922                                                 acl_usage();
 923                                         }
 924
 925                                         if( b->a_authz.sai_tls_ssf ) {
 926                                                 fprintf( stderr,
 927                                                         "%s: line %d: tls_ssf attribute already specified.\n",
 928                                                         fname, lineno );
 929                                                 acl_usage();
 930                                         }
 931
 932                                         if ( right == NULL || *right == '\0' ) {
 933                                                 fprintf( stderr,
 934                                                         "%s: line %d: no tls_ssf is defined\n",
 935                                                         fname, lineno );
 936                                                 acl_usage();
 937                                         }
 938
 939                                         b->a_authz.sai_tls_ssf = atoi( right );
 940
 941                                         if( !b->a_authz.sai_tls_ssf ) {
 942                                                 fprintf( stderr,
 943                                                         "%s: line %d: invalid tls_ssf value (%s)\n",
 944                                                         fname, lineno, right );
 945                                                 acl_usage();
 946                                         }
 947                                         continue;
 948                                 }
 949
 950                                 if ( strcasecmp( left, "sasl_ssf" ) == 0 ) {
 951                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 952                                                 fprintf( stderr,
 953                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 954                                                     fname, lineno, style );
 955                                                 acl_usage();
 956                                         }
 957
 958                                         if( b->a_authz.sai_sasl_ssf ) {
 959                                                 fprintf( stderr,
 960                                                         "%s: line %d: sasl_ssf attribute already specified.\n",
 961                                                         fname, lineno );
 962                                                 acl_usage();
 963                                         }
 964
 965                                         if ( right == NULL || *right == '\0' ) {
 966                                                 fprintf( stderr,
 967                                                         "%s: line %d: no sasl_ssf is defined\n",
 968                                                         fname, lineno );
 969                                                 acl_usage();
 970                                         }
 971
 972                                         b->a_authz.sai_sasl_ssf = atoi( right );
 973
 974                                         if( !b->a_authz.sai_sasl_ssf ) {
 975                                                 fprintf( stderr,
 976                                                         "%s: line %d: invalid sasl_ssf value (%s)\n",
 977                                                         fname, lineno, right );
 978                                                 acl_usage();
 979                                         }
 980                                         continue;
 981                                 }
 982
 983                                 if( right != NULL ) {
 984                                         /* unsplit */
 985                                         right[-1] = '=';
 986                                 }
 987                                 break;
 988                         }
 989
 990                         if( i == argc || ( strcasecmp( left, "stop" ) == 0 )) {
 991                                 /* out of arguments or plain stop */
 992
 993                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
 994                                 b->a_type = ACL_STOP;
 995
 996                                 access_append( &a->acl_access, b );
 997                                 continue;
 998                         }
 999
1000                         if( strcasecmp( left, "continue" ) == 0 ) {
1001                                 /* plain continue */
1002
1003                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
1004                                 b->a_type = ACL_CONTINUE;
1005
1006                                 access_append( &a->acl_access, b );
1007                                 continue;
1008                         }
1009
1010                         if( strcasecmp( left, "break" ) == 0 ) {
1011                                 /* plain continue */
1012
1013                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
1014                                 b->a_type = ACL_BREAK;
1015
1016                                 access_append( &a->acl_access, b );
1017                                 continue;
1018                         }
1019
1020                         if ( strcasecmp( left, "by" ) == 0 ) {
1021                                 /* we've gone too far */
1022                                 --i;
1023                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
1024                                 b->a_type = ACL_STOP;
1025
1026                                 access_append( &a->acl_access, b );
1027                                 continue;
1028                         }
1029
1030                         /* get <access> */
1031                         if( strncasecmp( left, "self", 4 ) == 0 ) {
1032                                 b->a_dn_self = 1;
1033                                 ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( &left[4] ) );
1034
1035                         } else {
1036                                 ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( left ) );
1037                         }
1038
1039                         if( ACL_IS_INVALID( b->a_access_mask ) ) {
1040                                 fprintf( stderr,
1041                                         "%s: line %d: expecting <access> got \"%s\"\n",
1042                                         fname, lineno, left );
1043                                 acl_usage();
1044                         }
1045
1046                         b->a_type = ACL_STOP;
1047
1048                         if( ++i == argc ) {
1049                                 /* out of arguments or plain stop */
1050                                 access_append( &a->acl_access, b );
1051                                 continue;
1052                         }
1053
1054                         if( strcasecmp( argv[i], "continue" ) == 0 ) {
1055                                 /* plain continue */
1056                                 b->a_type = ACL_CONTINUE;
1057
1058                         } else if( strcasecmp( argv[i], "break" ) == 0 ) {
1059                                 /* plain continue */
1060                                 b->a_type = ACL_BREAK;
1061
1062                         } else if ( strcasecmp( argv[i], "stop" ) != 0 ) {
1063                                 /* gone to far */
1064                                 i--;
1065                         }
1066
1067                         access_append( &a->acl_access, b );
1068
1069                 } else {
1070                         fprintf( stderr,
1071                     "%s: line %d: expecting \"to\" or \"by\" got \"%s\"\n",
1072                             fname, lineno, argv[i] );
1073                         acl_usage();
1074                 }
1075         }
1076
1077         /* if we have no real access clause, complain and do nothing */
1078         if ( a == NULL ) {
1079                         fprintf( stderr,
1080                                 "%s: line %d: warning: no access clause(s) specified in access line\n",
1081                             fname, lineno );
1082
1083         } else {
1084 #ifdef LDAP_DEBUG
1085                 if (ldap_debug & LDAP_DEBUG_ACL)
1086                         print_acl(be, a);
1087 #endif
1088
1089                 if ( a->acl_access == NULL ) {
1090                         fprintf( stderr,
1091                         "%s: line %d: warning: no by clause(s) specified in access line\n",
1092                             fname, lineno );
1093                 }
1094
1095                 if ( be != NULL ) {
1096                         acl_append( &be->be_acl, a );
1097                 } else {
1098                         acl_append( &global_acl, a );
1099                 }
1100         }
1101 }
1102
1103 char *
1104 accessmask2str( slap_mask_t mask, char *buf )
1105 {
1106         int none=1;
1107         char *ptr = buf;
1108
1109         assert( buf != NULL );
1110
1111         if ( ACL_IS_INVALID( mask ) ) {
1112                 return "invalid";
1113         }
1114
1115         buf[0] = '\0';
1116
1117         if ( ACL_IS_LEVEL( mask ) ) {
1118                 if ( ACL_LVL_IS_NONE(mask) ) {
1119                         ptr = lutil_strcopy( ptr, "none" );
1120
1121                 } else if ( ACL_LVL_IS_AUTH(mask) ) {
1122                         ptr = lutil_strcopy( ptr, "auth" );
1123
1124                 } else if ( ACL_LVL_IS_COMPARE(mask) ) {
1125                         ptr = lutil_strcopy( ptr, "compare" );
1126
1127                 } else if ( ACL_LVL_IS_SEARCH(mask) ) {
1128                         ptr = lutil_strcopy( ptr, "search" );
1129
1130                 } else if ( ACL_LVL_IS_READ(mask) ) {
1131                         ptr = lutil_strcopy( ptr, "read" );
1132
1133                 } else if ( ACL_LVL_IS_WRITE(mask) ) {
1134                         ptr = lutil_strcopy( ptr, "write" );
1135                 } else {
1136                         ptr = lutil_strcopy( ptr, "unknown" );
1137                 }
1138
1139                 *ptr++ = '(';
1140         }
1141
1142         if( ACL_IS_ADDITIVE( mask ) ) {
1143                 *ptr++ = '+';
1144
1145         } else if( ACL_IS_SUBTRACTIVE( mask ) ) {
1146                 *ptr++ = '-';
1147
1148         } else {
1149                 *ptr++ = '=';
1150         }
1151
1152         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_WRITE) ) {
1153                 none = 0;
1154                 *ptr++ = 'w';
1155         }
1156
1157         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_READ) ) {
1158                 none = 0;
1159                 *ptr++ = 'r';
1160         }
1161
1162         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_SEARCH) ) {
1163                 none = 0;
1164                 *ptr++ = 's';
1165         }
1166
1167         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_COMPARE) ) {
1168                 none = 0;
1169                 *ptr++ = 'c';
1170         }
1171
1172         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_AUTH) ) {
1173                 none = 0;
1174                 *ptr++ = 'x';
1175         }
1176
1177         if ( none && ACL_PRIV_ISSET(mask, ACL_PRIV_NONE) ) {
1178                 none = 0;
1179                 *ptr++ = 'n';
1180         }
1181
1182         if ( none ) {
1183                 *ptr++ = '0';
1184         }
1185
1186         if ( ACL_IS_LEVEL( mask ) ) {
1187                 *ptr++ = ')';
1188         }
1189
1190         *ptr = '\0';
1191
1192         return buf;
1193 }
1194
1195 slap_mask_t
1196 str2accessmask( const char *str )
1197 {
1198         slap_mask_t     mask;
1199
1200         if( !ASCII_ALPHA(str[0]) ) {
1201                 int i;
1202
1203                 if ( str[0] == '=' ) {
1204                         ACL_INIT(mask);
1205
1206                 } else if( str[0] == '+' ) {
1207                         ACL_PRIV_ASSIGN(mask, ACL_PRIV_ADDITIVE);
1208
1209                 } else if( str[0] == '-' ) {
1210                         ACL_PRIV_ASSIGN(mask, ACL_PRIV_SUBSTRACTIVE);
1211
1212                 } else {
1213                         ACL_INVALIDATE(mask);
1214                         return mask;
1215                 }
1216
1217                 for( i=1; str[i] != '\0'; i++ ) {
1218                         if( TOLOWER((unsigned char) str[i]) == 'w' ) {
1219                                 ACL_PRIV_SET(mask, ACL_PRIV_WRITE);
1220
1221                         } else if( TOLOWER((unsigned char) str[i]) == 'r' ) {
1222                                 ACL_PRIV_SET(mask, ACL_PRIV_READ);
1223
1224                         } else if( TOLOWER((unsigned char) str[i]) == 's' ) {
1225                                 ACL_PRIV_SET(mask, ACL_PRIV_SEARCH);
1226
1227                         } else if( TOLOWER((unsigned char) str[i]) == 'c' ) {
1228                                 ACL_PRIV_SET(mask, ACL_PRIV_COMPARE);
1229
1230                         } else if( TOLOWER((unsigned char) str[i]) == 'x' ) {
1231                                 ACL_PRIV_SET(mask, ACL_PRIV_AUTH);
1232
1233                         } else if( str[i] != '0' ) {
1234                                 ACL_INVALIDATE(mask);
1235                                 return mask;
1236                         }
1237                 }
1238
1239                 return mask;
1240         }
1241
1242         if ( strcasecmp( str, "none" ) == 0 ) {
1243                 ACL_LVL_ASSIGN_NONE(mask);
1244
1245         } else if ( strcasecmp( str, "auth" ) == 0 ) {
1246                 ACL_LVL_ASSIGN_AUTH(mask);
1247
1248         } else if ( strcasecmp( str, "compare" ) == 0 ) {
1249                 ACL_LVL_ASSIGN_COMPARE(mask);
1250
1251         } else if ( strcasecmp( str, "search" ) == 0 ) {
1252                 ACL_LVL_ASSIGN_SEARCH(mask);
1253
1254         } else if ( strcasecmp( str, "read" ) == 0 ) {
1255                 ACL_LVL_ASSIGN_READ(mask);
1256
1257         } else if ( strcasecmp( str, "write" ) == 0 ) {
1258                 ACL_LVL_ASSIGN_WRITE(mask);
1259
1260         } else {
1261                 ACL_INVALIDATE( mask );
1262         }
1263
1264         return mask;
1265 }
1266
1267 static void
1268 acl_usage( void )
1269 {
1270         fprintf( stderr, "\n"
1271                 "<access clause> ::= access to <what> "
1272                                 "[ by <who> <access> [ <control> ] ]+ \n"
1273                 "<what> ::= * | [dn[.<dnstyle>]=<regex>] [filter=<ldapfilter>] [attrs=<attrlist>]\n"
1274                 "<attrlist> ::= <attr> | <attr> , <attrlist>\n"
1275                 "<attr> ::= <attrname> | entry | children\n"
1276                 "<who> ::= [ * | anonymous | users | self | dn[.<dnstyle>]=<regex> ]\n"
1277                         "\t[dnattr=<attrname>]\n"
1278                         "\t[group[/<objectclass>[/<attrname>]][.<style>]=<regex>]\n"
1279                         "\t[peername[.<style>]=<regex>] [sockname[.<style>]=<regex>]\n"
1280                         "\t[domain[.<style>]=<regex>] [sockurl[.<style>]=<regex>]\n"
1281 #ifdef SLAPD_ACI_ENABLED
1282                         "\t[aci=<attrname>]\n"
1283 #endif
1284                         "\t[ssf=<n>] [transport_ssf=<n>] [tls_ssf=<n>] [sasl_ssf=<n>]\n"
1285                 "<dnstyle> ::= regex | base | exact (alias of base) | one | subtree | children\n"
1286                 "<style> ::= regex | base | exact (alias of base)\n"
1287                 "<groupflags> ::= R\n"
1288                 "<access> ::= [self]{<level>|<priv>}\n"
1289                 "<level> ::= none | auth | compare | search | read | write\n"
1290                 "<priv> ::= {=|+|-}{w|r|s|c|x}+\n"
1291                 "<control> ::= [ stop | continue | break ]\n"
1292                 );
1293         exit( EXIT_FAILURE );
1294 }
1295
1296 /*
1297  * Set pattern to a "normalized" DN from src.
1298  * At present it simply eats the (optional) space after
1299  * a RDN separator (,)
1300  * Eventually will evolve in a more complete normalization
1301  */
1302 static void
1303 acl_regex_normalized_dn(
1304         const char *src,
1305         struct berval *pattern
1306 )
1307 {
1308         char *str, *p;
1309         ber_len_t len;
1310
1311         str = ch_strdup( src );
1312         len = strlen( src );
1313
1314         for ( p = str; p && p[ 0 ]; p++ ) {
1315                 /* escape */
1316                 if ( p[ 0 ] == '\\' && p[ 1 ] ) {
1317                         /*
1318                          * if escaping a hex pair we should
1319                          * increment p twice; however, in that
1320                          * case the second hex number does
1321                          * no harm
1322                          */
1323                         p++;
1324                 }
1325
1326                 if ( p[ 0 ] == ',' ) {
1327                         if ( p[ 1 ] == ' ' ) {
1328                                 char *q;
1329
1330                                 /*
1331                                  * too much space should be
1332                                  * an error if we are pedantic
1333                                  */
1334                                 for ( q = &p[ 2 ]; q[ 0 ] == ' '; q++ ) {
1335                                         /* DO NOTHING */ ;
1336                                 }
1337                                 AC_MEMCPY( p+1, q, len-(q-str)+1);
1338                         }
1339                 }
1340         }
1341         pattern->bv_val = str;
1342         pattern->bv_len = p-str;
1343
1344         return;
1345 }
1346
1347 static void
1348 split(
1349     char        *line,
1350     int         splitchar,
1351     char        **left,
1352     char        **right
1353 )
1354 {
1355         *left = line;
1356         if ( (*right = strchr( line, splitchar )) != NULL ) {
1357                 *((*right)++) = '\0';
1358         }
1359 }
1360
1361 static void
1362 access_append( Access **l, Access *a )
1363 {
1364         for ( ; *l != NULL; l = &(*l)->a_next )
1365                 ;       /* NULL */
1366
1367         *l = a;
1368 }
1369
1370 void
1371 acl_append( AccessControl **l, AccessControl *a )
1372 {
1373         for ( ; *l != NULL; l = &(*l)->acl_next )
1374                 ;       /* NULL */
1375
1376         *l = a;
1377 }
1378
1379 static void
1380 access_free( Access *a )
1381 {
1382         if ( a->a_dn_pat.bv_val )
1383                 free ( a->a_dn_pat.bv_val );
1384         if ( a->a_peername_pat.bv_val )
1385                 free ( a->a_peername_pat.bv_val );
1386         if ( a->a_sockname_pat.bv_val )
1387                 free ( a->a_sockname_pat.bv_val );
1388         if ( a->a_domain_pat.bv_val )
1389                 free ( a->a_domain_pat.bv_val );
1390         if ( a->a_sockurl_pat.bv_val )
1391                 free ( a->a_sockurl_pat.bv_val );
1392         if ( a->a_set_pat.bv_len )
1393                 free ( a->a_set_pat.bv_val );
1394         if ( a->a_group_pat.bv_len )
1395                 free ( a->a_group_pat.bv_val );
1396         free( a );
1397 }
1398
1399 void
1400 acl_free( AccessControl *a )
1401 {
1402         Access *n;
1403         AttributeName *an;
1404
1405         if ( a->acl_filter )
1406                 filter_free( a->acl_filter );
1407         if ( a->acl_dn_pat.bv_len )
1408                 free ( a->acl_dn_pat.bv_val );
1409         if ( a->acl_attrs ) {
1410                 for ( an = a->acl_attrs; an->an_name.bv_val; an++ ) {
1411                         free( an->an_name.bv_val );
1412                 }
1413                 free( a->acl_attrs );
1414         }
1415         for (; a->acl_access; a->acl_access = n) {
1416                 n = a->acl_access->a_next;
1417                 access_free( a->acl_access );
1418         }
1419         free( a );
1420 }
1421
1422 /* Because backend_startup uses acl_append to tack on the global_acl to
1423  * the end of each backend's acl, we cannot just take one argument and
1424  * merrily free our way to the end of the list. backend_destroy calls us
1425  * with the be_acl in arg1, and global_acl in arg2 to give us a stopping
1426  * point. config_destroy calls us with global_acl in arg1 and NULL in
1427  * arg2, so we then proceed to polish off the global_acl.
1428  */
1429 void
1430 acl_destroy( AccessControl *a, AccessControl *end )
1431 {
1432         AccessControl *n;
1433
1434         for (; a && a!= end; a=n) {
1435                 n = a->acl_next;
1436                 acl_free( a );
1437         }
1438 }
1439
1440 char *
1441 access2str( slap_access_t access )
1442 {
1443         if ( access == ACL_NONE ) {
1444                 return "none";
1445
1446         } else if ( access == ACL_AUTH ) {
1447                 return "auth";
1448
1449         } else if ( access == ACL_COMPARE ) {
1450                 return "compare";
1451
1452         } else if ( access == ACL_SEARCH ) {
1453                 return "search";
1454
1455         } else if ( access == ACL_READ ) {
1456                 return "read";
1457
1458         } else if ( access == ACL_WRITE ) {
1459                 return "write";
1460         }
1461
1462         return "unknown";
1463 }
1464
1465 slap_access_t
1466 str2access( const char *str )
1467 {
1468         if ( strcasecmp( str, "none" ) == 0 ) {
1469                 return ACL_NONE;
1470
1471         } else if ( strcasecmp( str, "auth" ) == 0 ) {
1472                 return ACL_AUTH;
1473
1474         } else if ( strcasecmp( str, "compare" ) == 0 ) {
1475                 return ACL_COMPARE;
1476
1477         } else if ( strcasecmp( str, "search" ) == 0 ) {
1478                 return ACL_SEARCH;
1479
1480         } else if ( strcasecmp( str, "read" ) == 0 ) {
1481                 return ACL_READ;
1482
1483         } else if ( strcasecmp( str, "write" ) == 0 ) {
1484                 return ACL_WRITE;
1485         }
1486
1487         return( ACL_INVALID_ACCESS );
1488 }
1489
1490 #ifdef LDAP_DEBUG
1491
1492 static char *style_strings[5] = {
1493                         "regex",
1494                         "base",
1495                         "one",
1496                         "subtree",
1497                         "children"
1498                 };
1499
1500
1501 static void
1502 print_access( Access *b )
1503 {
1504         char maskbuf[ACCESSMASK_MAXLEN];
1505
1506         fprintf( stderr, "\tby" );
1507
1508         if ( b->a_dn_pat.bv_len != 0 ) {
1509                 if( strcmp(b->a_dn_pat.bv_val, "*") == 0
1510                         || strcmp(b->a_dn_pat.bv_val, "users") == 0
1511                         || strcmp(b->a_dn_pat.bv_val, "anonymous") == 0
1512                         || strcmp(b->a_dn_pat.bv_val, "self") == 0 )
1513                 {
1514                         fprintf( stderr, " %s", b->a_dn_pat.bv_val );
1515
1516                 } else {
1517                         fprintf( stderr, " dn.%s=%s",
1518                                 style_strings[b->a_dn_style], b->a_dn_pat.bv_val );
1519                 }
1520         }
1521
1522         if ( b->a_dn_at != NULL ) {
1523                 fprintf( stderr, " dnattr=%s", b->a_dn_at->ad_cname.bv_val );
1524         }
1525
1526         if ( b->a_group_pat.bv_len ) {
1527                 fprintf( stderr, " group=%s", b->a_group_pat.bv_val );
1528
1529                 if ( b->a_group_oc ) {
1530                         fprintf( stderr, " objectClass: %s",
1531                                 b->a_group_oc->soc_oclass.oc_oid );
1532
1533                         if ( b->a_group_at ) {
1534                                 fprintf( stderr, " attributeType: %s", b->a_group_at->ad_cname.bv_val );
1535                         }
1536                 }
1537     }
1538
1539         if ( b->a_peername_pat.bv_len != 0 ) {
1540                 fprintf( stderr, " peername=%s", b->a_peername_pat.bv_val );
1541         }
1542
1543         if ( b->a_sockname_pat.bv_len != 0 ) {
1544                 fprintf( stderr, " sockname=%s", b->a_sockname_pat.bv_val );
1545         }
1546
1547         if ( b->a_domain_pat.bv_len != 0 ) {
1548                 fprintf( stderr, " domain=%s", b->a_domain_pat.bv_val );
1549         }
1550
1551         if ( b->a_sockurl_pat.bv_len != 0 ) {
1552                 fprintf( stderr, " sockurl=%s", b->a_sockurl_pat.bv_val );
1553         }
1554
1555 #ifdef SLAPD_ACI_ENABLED
1556         if ( b->a_aci_at != NULL ) {
1557                 fprintf( stderr, " aci=%s", b->a_aci_at->ad_cname.bv_val );
1558         }
1559 #endif
1560
1561         /* Security Strength Factors */
1562         if ( b->a_authz.sai_ssf ) {
1563                 fprintf( stderr, " ssf=%u",
1564                         b->a_authz.sai_ssf );
1565         }
1566         if ( b->a_authz.sai_transport_ssf ) {
1567                 fprintf( stderr, " transport_ssf=%u",
1568                         b->a_authz.sai_transport_ssf );
1569         }
1570         if ( b->a_authz.sai_tls_ssf ) {
1571                 fprintf( stderr, " tls_ssf=%u",
1572                         b->a_authz.sai_tls_ssf );
1573         }
1574         if ( b->a_authz.sai_sasl_ssf ) {
1575                 fprintf( stderr, " sasl_ssf=%u",
1576                         b->a_authz.sai_sasl_ssf );
1577         }
1578
1579         fprintf( stderr, " %s%s",
1580                 b->a_dn_self ? "self" : "",
1581                 accessmask2str( b->a_access_mask, maskbuf ) );
1582
1583         if( b->a_type == ACL_BREAK ) {
1584                 fprintf( stderr, " break" );
1585
1586         } else if( b->a_type == ACL_CONTINUE ) {
1587                 fprintf( stderr, " continue" );
1588
1589         } else if( b->a_type != ACL_STOP ) {
1590                 fprintf( stderr, " unknown-control" );
1591         }
1592
1593         fprintf( stderr, "\n" );
1594 }
1595
1596
1597 static void
1598 print_acl( Backend *be, AccessControl *a )
1599 {
1600         int             to = 0;
1601         Access  *b;
1602
1603         fprintf( stderr, "%s ACL: access to",
1604                 be == NULL ? "Global" : "Backend" );
1605
1606         if ( a->acl_dn_pat.bv_len != 0 ) {
1607                 to++;
1608                 fprintf( stderr, " dn.%s=%s\n",
1609                         style_strings[a->acl_dn_style], a->acl_dn_pat.bv_val );
1610         }
1611
1612         if ( a->acl_filter != NULL ) {
1613                 struct berval bv = { 0, NULL };
1614                 to++;
1615                 filter2bv( a->acl_filter, &bv );
1616                 fprintf( stderr, " filter=%s\n", bv.bv_val );
1617                 ch_free( bv.bv_val );
1618         }
1619
1620         if ( a->acl_attrs != NULL ) {
1621                 int     first = 1;
1622                 AttributeName *an;
1623                 to++;
1624
1625                 fprintf( stderr, " attrs=" );
1626                 for ( an = a->acl_attrs; an && an->an_name.bv_val; an++ ) {
1627                         if ( ! first ) {
1628                                 fprintf( stderr, "," );
1629                         }
1630                         fputs( an->an_name.bv_val, stderr );
1631                         first = 0;
1632                 }
1633                 fprintf(  stderr, "\n" );
1634         }
1635
1636         if( !to ) {
1637                 fprintf( stderr, " *\n" );
1638         }
1639
1640         for ( b = a->acl_access; b != NULL; b = b->a_next ) {
1641                 print_access( b );
1642         }
1643
1644         fprintf( stderr, "\n" );
1645 }
1646
1647 #endif /* LDAP_DEBUG */