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, "%s: line %d: "
 110                                         "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, "%s: line %d: "
 142                                                 "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, "base" ) == 0 ) ||
 160                                                 ( strcasecmp( style, "exact" ) == 0 ))
 161                                         {
 162                                                 a->acl_dn_style = ACL_STYLE_BASE;
 163                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 164
 165                                         } else if ( strcasecmp( style, "one" ) == 0 ) {
 166                                                 a->acl_dn_style = ACL_STYLE_ONE;
 167                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 168
 169                                         } else if ( strcasecmp( style, "subtree" ) == 0
 170                                                 || strcasecmp( style, "sub" ) == 0 )
 171                                         {
 172                                                 if( *right == '\0' ) {
 173                                                         a->acl_dn_pat.bv_val = ch_strdup( "*" );
 174                                                         a->acl_dn_pat.bv_len = 1;
 175
 176                                                 } else {
 177                                                         a->acl_dn_style = ACL_STYLE_SUBTREE;
 178                                                         ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 179                                                 }
 180
 181                                         } else if ( strcasecmp( style, "children" ) == 0 ) {
 182                                                 a->acl_dn_style = ACL_STYLE_CHILDREN;
 183                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 184
 185                                         } else if ( strcasecmp( style, "regex" ) == 0 ) {
 186                                                 a->acl_dn_style = ACL_STYLE_REGEX;
 187
 188                                                 if ( *right == '\0' ) {
 189                                                         /* empty regex should match empty DN */
 190                                                         a->acl_dn_style = ACL_STYLE_BASE;
 191                                                         ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 192
 193                                                 } else if ( strcmp(right, "*") == 0
 194                                                         || strcmp(right, ".*") == 0
 195                                                         || strcmp(right, ".*$") == 0
 196                                                         || strcmp(right, "^.*") == 0
 197                                                         || strcmp(right, "^.*$") == 0
 198                                                         || strcmp(right, ".*$$") == 0
 199                                                         || strcmp(right, "^.*$$") == 0 )
 200                                                 {
 201                                                         a->acl_dn_pat.bv_val = ch_strdup( "*" );
 202                                                         a->acl_dn_pat.bv_len = sizeof("*")-1;
 203
 204                                                 } else {
 205                                                         acl_regex_normalized_dn( right, &a->acl_dn_pat );
 206                                                 }
 207
 208                                         } else {
 209                                                 fprintf( stderr, "%s: line %d: "
 210                                                         "unknown dn style \"%s\" in to clause\n",
 211                                                     fname, lineno, style );
 212                                                 acl_usage();
 213                                         }
 214
 215                                         continue;
 216                                 }
 217
 218                                 if ( strcasecmp( left, "filter" ) == 0 ) {
 219                                         if ( (a->acl_filter = str2filter( right )) == NULL ) {
 220                                                 fprintf( stderr,
 221                                 "%s: line %d: bad filter \"%s\" in to clause\n",
 222                                                     fname, lineno, right );
 223                                                 acl_usage();
 224                                         }
 225
 226                                 } else if ( strncasecmp( left, "attr", 4 ) == 0 ) {
 227                                         a->acl_attrs = str2anlist( a->acl_attrs,
 228                                                 right, "," );
 229                                         if ( a->acl_attrs == NULL ) {
 230                                                 fprintf( stderr,
 231                                 "%s: line %d: unknown attr \"%s\" in to clause\n",
 232                                                     fname, lineno, right );
 233                                                 acl_usage();
 234                                         }
 235
 236                                 } else if ( strncasecmp( left, "val", 3 ) == 0 ) {
 237                                         if ( a->acl_attrval.bv_len ) {
 238                                                 fprintf( stderr,
 239                                 "%s: line %d: attr val already specified in to clause.\n",
 240                                                         fname, lineno );
 241                                                 acl_usage();
 242                                         }
 243                                         if ( a->acl_attrs == NULL || a->acl_attrs[1].an_name.bv_val ) {
 244                                                 fprintf( stderr,
 245                                 "%s: line %d: attr val requires a single attribute.\n",
 246                                                         fname, lineno );
 247                                                 acl_usage();
 248                                         }
 249                                         ber_str2bv( right, 0, 1, &a->acl_attrval );
 250                                         if ( style && strcasecmp( style, "regex" ) == 0 ) {
 251                                                 int e = regcomp( &a->acl_attrval_re, a->acl_attrval.bv_val,
 252                                                         REG_EXTENDED | REG_ICASE | REG_NOSUB );
 253                                                 if ( e ) {
 254                                                         char buf[512];
 255                                                         regerror( e, &a->acl_attrval_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                                                 a->acl_attrval_style = ACL_STYLE_REGEX;
 262                                         } else {
 263                                                 a->acl_attrval_style = ACL_STYLE_BASE;
 264                                         }
 265
 266                                 } else {
 267                                         fprintf( stderr,
 268                                                 "%s: line %d: expecting <what> got \"%s\"\n",
 269                                             fname, lineno, left );
 270                                         acl_usage();
 271                                 }
 272                         }
 273
 274                         if ( a->acl_dn_pat.bv_len != 0 &&
 275                                 strcmp(a->acl_dn_pat.bv_val, "*") == 0 )
 276                         {
 277                                 free( a->acl_dn_pat.bv_val );
 278                                 a->acl_dn_pat.bv_val = NULL;
 279                                 a->acl_dn_pat.bv_len = 0;
 280                         }
 281
 282                         if( a->acl_dn_pat.bv_len != 0 ||
 283                                 ( a->acl_dn_style != ACL_STYLE_REGEX ) )
 284                         {
 285                                 if ( a->acl_dn_style != ACL_STYLE_REGEX ) {
 286                                         struct berval bv;
 287                                         rc = dnNormalize( 0, NULL, NULL, &a->acl_dn_pat, &bv, NULL);
 288                                         if ( rc != LDAP_SUCCESS ) {
 289                                                 fprintf( stderr,
 290                                                         "%s: line %d: bad DN \"%s\" in to DN clause\n",
 291                                                         fname, lineno, a->acl_dn_pat.bv_val );
 292                                                 acl_usage();
 293                                         }
 294                                         free( a->acl_dn_pat.bv_val );
 295                                         a->acl_dn_pat = bv;
 296                                 } else {
 297                                         int e = regcomp( &a->acl_dn_re, a->acl_dn_pat.bv_val,
 298                                                 REG_EXTENDED | REG_ICASE );
 299                                         if ( e ) {
 300                                                 char buf[512];
 301                                                 regerror( e, &a->acl_dn_re, buf, sizeof(buf) );
 302                                                 fprintf( stderr, "%s: line %d: "
 303                                                         "regular expression \"%s\" bad because of %s\n",
 304                                                         fname, lineno, right, buf );
 305                                                 acl_usage();
 306                                         }
 307                                 }
 308                         }
 309
 310                 /* by clause - select who has what access to entries */
 311                 } else if ( strcasecmp( argv[i], "by" ) == 0 ) {
 312                         if ( a == NULL ) {
 313                                 fprintf( stderr, "%s: line %d: "
 314                                         "to clause required before by clause in access line\n",
 315                                     fname, lineno );
 316                                 acl_usage();
 317                         }
 318
 319                         /*
 320                          * by clause consists of <who> and <access>
 321                          */
 322
 323                         b = (Access *) ch_calloc( 1, sizeof(Access) );
 324
 325                         ACL_INVALIDATE( b->a_access_mask );
 326
 327                         if ( ++i == argc ) {
 328                                 fprintf( stderr,
 329                             "%s: line %d: premature eol: expecting <who>\n",
 330                                     fname, lineno );
 331                                 acl_usage();
 332                         }
 333
 334                         /* get <who> */
 335                         for ( ; i < argc; i++ ) {
 336                                 slap_style_t sty = ACL_STYLE_REGEX;
 337                                 char *style_modifier = NULL;
 338                                 int expand = 0;
 339
 340                                 split( argv[i], '=', &left, &right );
 341                                 split( left, '.', &left, &style );
 342                                 if ( style ) {
 343                                         split( style, ',', &style, &style_modifier);
 344                                 }
 345
 346                                 if ( style == NULL || *style == '\0' ||
 347                                         strcasecmp( style, "exact" ) == 0 ||
 348                                         strcasecmp( style, "base" ) == 0 )
 349                                 {
 350                                         sty = ACL_STYLE_BASE;
 351
 352                                 } else if ( strcasecmp( style, "one" ) == 0 ) {
 353                                         sty = ACL_STYLE_ONE;
 354
 355                                 } else if ( strcasecmp( style, "subtree" ) == 0 ||
 356                                         strcasecmp( style, "sub" ) == 0 )
 357                                 {
 358                                         sty = ACL_STYLE_SUBTREE;
 359
 360                                 } else if ( strcasecmp( style, "children" ) == 0 ) {
 361                                         sty = ACL_STYLE_CHILDREN;
 362
 363                                 } else if ( strcasecmp( style, "regex" ) == 0 ) {
 364                                         sty = ACL_STYLE_REGEX;
 365
 366                                 } else {
 367                                         fprintf( stderr,
 368                                                 "%s: line %d: unknown style \"%s\" in by clause\n",
 369                                             fname, lineno, style );
 370                                         acl_usage();
 371                                 }
 372
 373                                 if ( style_modifier &&
 374                                         strcasecmp( style_modifier, "expand" ) == 0 )
 375                                 {
 376                                         expand = 1;
 377                                 }
 378
 379                                 if ( strcasecmp( argv[i], "*" ) == 0 ) {
 380                                         bv.bv_val = ch_strdup( "*" );
 381                                         bv.bv_len = 1;
 382                                         sty = ACL_STYLE_REGEX;
 383
 384                                 } else if ( strcasecmp( argv[i], "anonymous" ) == 0 ) {
 385                                         ber_str2bv("anonymous", sizeof("anonymous")-1, 1, &bv);
 386                                         sty = ACL_STYLE_REGEX;
 387
 388                                 } else if ( strcasecmp( argv[i], "self" ) == 0 ) {
 389                                         ber_str2bv("self", sizeof("self")-1, 1, &bv);
 390                                         sty = ACL_STYLE_REGEX;
 391
 392                                 } else if ( strcasecmp( argv[i], "users" ) == 0 ) {
 393                                         ber_str2bv("users", sizeof("users")-1, 1, &bv);
 394                                         sty = ACL_STYLE_REGEX;
 395
 396                                 } else if ( strcasecmp( left, "dn" ) == 0 ) {
 397                                         if ( sty == ACL_STYLE_REGEX ) {
 398                                                 b->a_dn_style = ACL_STYLE_REGEX;
 399                                                 if( right == NULL ) {
 400                                                         /* no '=' */
 401                                                         ber_str2bv("users",
 402                                                                 sizeof("users")-1,
 403                                                                 1, &bv);
 404                                                 } else if (*right == '\0' ) {
 405                                                         /* dn="" */
 406                                                         ber_str2bv("anonymous",
 407                                                                 sizeof("anonymous")-1,
 408                                                                 1, &bv);
 409                                                 } else if ( strcmp( right, "*" ) == 0 ) {
 410                                                         /* dn=* */
 411                                                         /* any or users?  users for now */
 412                                                         ber_str2bv("users",
 413                                                                 sizeof("users")-1,
 414                                                                 1, &bv);
 415                                                 } else if ( strcmp( right, ".+" ) == 0
 416                                                         || strcmp( right, "^.+" ) == 0
 417                                                         || strcmp( right, ".+$" ) == 0
 418                                                         || strcmp( right, "^.+$" ) == 0
 419                                                         || strcmp( right, ".+$$" ) == 0
 420                                                         || strcmp( right, "^.+$$" ) == 0 )
 421                                                 {
 422                                                         ber_str2bv("users",
 423                                                                 sizeof("users")-1,
 424                                                                 1, &bv);
 425                                                 } else if ( strcmp( right, ".*" ) == 0
 426                                                         || strcmp( right, "^.*" ) == 0
 427                                                         || strcmp( right, ".*$" ) == 0
 428                                                         || strcmp( right, "^.*$" ) == 0
 429                                                         || strcmp( right, ".*$$" ) == 0
 430                                                         || strcmp( right, "^.*$$" ) == 0 )
 431                                                 {
 432                                                         ber_str2bv("*",
 433                                                                 sizeof("*")-1,
 434                                                                 1, &bv);
 435
 436                                                 } else {
 437                                                         acl_regex_normalized_dn( right, &bv );
 438                                                         if ( !ber_bvccmp( &bv, '*' ) ) {
 439                                                                 regtest(fname, lineno, bv.bv_val);
 440                                                         }
 441                                                 }
 442                                         } else if ( right == NULL || *right == '\0' ) {
 443                                                 fprintf( stderr, "%s: line %d: "
 444                                                         "missing \"=\" in (or value after) \"%s\" "
 445                                                         "in by clause\n",
 446                                                     fname, lineno, left );
 447                                                 acl_usage();
 448
 449                                         } else {
 450                                                 ber_str2bv( right, 0, 1, &bv );
 451                                         }
 452
 453                                 } else {
 454                                         bv.bv_val = NULL;
 455                                 }
 456
 457                                 if( bv.bv_val != NULL ) {
 458                                         if( b->a_dn_pat.bv_len != 0 ) {
 459                                                 fprintf( stderr,
 460                                                     "%s: line %d: dn pattern already specified.\n",
 461                                                     fname, lineno );
 462                                                 acl_usage();
 463                                         }
 464
 465                                         if ( sty != ACL_STYLE_REGEX && expand == 0 ) {
 466                                                 rc = dnNormalize(0, NULL, NULL,
 467                                                         &bv, &b->a_dn_pat, NULL);
 468                                                 if ( rc != LDAP_SUCCESS ) {
 469                                                         fprintf( stderr,
 470                                                                 "%s: line %d: bad DN \"%s\" in by DN clause\n",
 471                                                                 fname, lineno, bv.bv_val );
 472                                                         acl_usage();
 473                                                 }
 474                                                 free(bv.bv_val);
 475                                         } else {
 476                                                 b->a_dn_pat = bv;
 477                                         }
 478                                         b->a_dn_style = sty;
 479                                         b->a_dn_expand = expand;
 480                                         continue;
 481                                 }
 482
 483                                 if ( strcasecmp( left, "dnattr" ) == 0 ) {
 484                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 485                                                 fprintf( stderr,
 486                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 487                                                         fname, lineno, left );
 488                                                 acl_usage();
 489                                         }
 490
 491                                         if( b->a_dn_at != NULL ) {
 492                                                 fprintf( stderr,
 493                                                         "%s: line %d: dnattr already specified.\n",
 494                                                         fname, lineno );
 495                                                 acl_usage();
 496                                         }
 497
 498                                         rc = slap_str2ad( right, &b->a_dn_at, &text );
 499
 500                                         if( rc != LDAP_SUCCESS ) {
 501                                                 fprintf( stderr,
 502                                                         "%s: line %d: dnattr \"%s\": %s\n",
 503                                                         fname, lineno, right, text );
 504                                                 acl_usage();
 505                                         }
 506
 507
 508                                         if( !is_at_syntax( b->a_dn_at->ad_type,
 509                                                 SLAPD_DN_SYNTAX ) &&
 510                                                 !is_at_syntax( b->a_dn_at->ad_type,
 511                                                 SLAPD_NAMEUID_SYNTAX ))
 512                                         {
 513                                                 fprintf( stderr,
 514                                                         "%s: line %d: dnattr \"%s\": "
 515                                                         "inappropriate syntax: %s\n",
 516                                                         fname, lineno, right,
 517                                                         b->a_dn_at->ad_type->sat_syntax_oid );
 518                                                 acl_usage();
 519                                         }
 520
 521                                         if( b->a_dn_at->ad_type->sat_equality == NULL ) {
 522                                                 fprintf( stderr,
 523                                                         "%s: line %d: dnattr \"%s\": "
 524                                                         "inappropriate matching (no EQUALITY)\n",
 525                                                         fname, lineno, right );
 526                                                 acl_usage();
 527                                         }
 528
 529                                         continue;
 530                                 }
 531
 532                                 if ( strncasecmp( left, "group", sizeof("group")-1 ) == 0 ) {
 533                                         char *name = NULL;
 534                                         char *value = NULL;
 535
 536                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 537                                                 fprintf( stderr, "%s: line %d: "
 538                                                         "inappropriate style \"%s\" in by clause\n",
 539                                                     fname, lineno, style );
 540                                                 acl_usage();
 541                                         }
 542
 543                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 544                                                 fprintf( stderr, "%s: line %d: "
 545                                                         "missing \"=\" in (or value after) \"%s\" "
 546                                                         "in by clause\n",
 547                                                         fname, lineno, left );
 548                                                 acl_usage();
 549                                         }
 550
 551                                         if( b->a_group_pat.bv_len ) {
 552                                                 fprintf( stderr,
 553                                                         "%s: line %d: group pattern already specified.\n",
 554                                                         fname, lineno );
 555                                                 acl_usage();
 556                                         }
 557
 558                                         /* format of string is
 559                                                 "group/objectClassValue/groupAttrName" */
 560                                         if ((value = strchr(left, '/')) != NULL) {
 561                                                 *value++ = '\0';
 562                                                 if (*value && (name = strchr(value, '/')) != NULL) {
 563                                                         *name++ = '\0';
 564                                                 }
 565                                         }
 566
 567                                         b->a_group_style = sty;
 568                                         if (sty == ACL_STYLE_REGEX) {
 569                                                 acl_regex_normalized_dn( right, &bv );
 570                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 571                                                         regtest(fname, lineno, bv.bv_val);
 572                                                 }
 573                                                 b->a_group_pat = bv;
 574                                         } else {
 575                                                 ber_str2bv( right, 0, 0, &bv );
 576                                                 rc = dnNormalize( 0, NULL, NULL, &bv,
 577                                                         &b->a_group_pat, NULL );
 578                                                 if ( rc != LDAP_SUCCESS ) {
 579                                                         fprintf( stderr,
 580                                                                 "%s: line %d: bad DN \"%s\"\n",
 581                                                                 fname, lineno, right );
 582                                                         acl_usage();
 583                                                 }
 584                                         }
 585
 586                                         if (value && *value) {
 587                                                 b->a_group_oc = oc_find( value );
 588                                                 *--value = '/';
 589
 590                                                 if( b->a_group_oc == NULL ) {
 591                                                         fprintf( stderr,
 592                                                                 "%s: line %d: group objectclass "
 593                                                                 "\"%s\" unknown\n",
 594                                                                 fname, lineno, value );
 595                                                         acl_usage();
 596                                                 }
 597                                         } else {
 598                                                 b->a_group_oc = oc_find(SLAPD_GROUP_CLASS);
 599
 600                                                 if( b->a_group_oc == NULL ) {
 601                                                         fprintf( stderr,
 602                                                                 "%s: line %d: group default objectclass "
 603                                                                 "\"%s\" unknown\n",
 604                                                                 fname, lineno, SLAPD_GROUP_CLASS );
 605                                                         acl_usage();
 606                                                 }
 607                                         }
 608
 609                                         if( is_object_subclass( slap_schema.si_oc_referral,
 610                                                 b->a_group_oc ))
 611                                         {
 612                                                 fprintf( stderr,
 613                                                         "%s: line %d: group objectclass \"%s\" "
 614                                                         "is subclass of referral\n",
 615                                                         fname, lineno, value );
 616                                                 acl_usage();
 617                                         }
 618
 619                                         if( is_object_subclass( slap_schema.si_oc_alias,
 620                                                 b->a_group_oc ))
 621                                         {
 622                                                 fprintf( stderr,
 623                                                         "%s: line %d: group objectclass \"%s\" "
 624                                                         "is subclass of alias\n",
 625                                                         fname, lineno, value );
 626                                                 acl_usage();
 627                                         }
 628
 629                                         if (name && *name) {
 630                                                 rc = slap_str2ad( name, &b->a_group_at, &text );
 631
 632                                                 if( rc != LDAP_SUCCESS ) {
 633                                                         fprintf( stderr,
 634                                                                 "%s: line %d: group \"%s\": %s\n",
 635                                                                 fname, lineno, right, text );
 636                                                         acl_usage();
 637                                                 }
 638                                                 *--name = '/';
 639                                         } else {
 640                                                 rc = slap_str2ad( SLAPD_GROUP_ATTR, &b->a_group_at, &text );
 641
 642                                                 if( rc != LDAP_SUCCESS ) {
 643                                                         fprintf( stderr,
 644                                                                 "%s: line %d: group \"%s\": %s\n",
 645                                                                 fname, lineno, SLAPD_GROUP_ATTR, text );
 646                                                         acl_usage();
 647                                                 }
 648                                         }
 649
 650                                         if( !is_at_syntax( b->a_group_at->ad_type,
 651                                                 SLAPD_DN_SYNTAX ) &&
 652                                             !is_at_syntax( b->a_group_at->ad_type,
 653                                                 SLAPD_NAMEUID_SYNTAX ) )
 654                                         {
 655                                                 fprintf( stderr,
 656                                                         "%s: line %d: group \"%s\": inappropriate syntax: %s\n",
 657                                                         fname, lineno, right,
 658                                                         b->a_group_at->ad_type->sat_syntax_oid );
 659                                                 acl_usage();
 660                                         }
 661
 662
 663                                         {
 664                                                 int rc;
 665                                                 struct berval vals[2];
 666
 667                                                 vals[0].bv_val = b->a_group_oc->soc_oid;
 668                                                 vals[0].bv_len = strlen(vals[0].bv_val);
 669                                                 vals[1].bv_val = NULL;
 670
 671
 672                                                 rc = oc_check_allowed( b->a_group_at->ad_type,
 673                                                         vals, NULL );
 674
 675                                                 if( rc != 0 ) {
 676                                                         fprintf( stderr, "%s: line %d: "
 677                                                                 "group: \"%s\" not allowed by \"%s\"\n",
 678                                                                 fname, lineno,
 679                                                                 b->a_group_at->ad_cname.bv_val,
 680                                                                 b->a_group_oc->soc_oid );
 681                                                         acl_usage();
 682                                                 }
 683                                         }
 684                                         continue;
 685                                 }
 686
 687                                 if ( strcasecmp( left, "peername" ) == 0 ) {
 688                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 689                                                 fprintf( stderr, "%s: line %d: "
 690                                                         "inappropriate style \"%s\" in by clause\n",
 691                                                     fname, lineno, style );
 692                                                 acl_usage();
 693                                         }
 694
 695                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 696                                                 fprintf( stderr, "%s: line %d: "
 697                                                         "missing \"=\" in (or value after) \"%s\" "
 698                                                         "in by clause\n",
 699                                                         fname, lineno, left );
 700                                                 acl_usage();
 701                                         }
 702
 703                                         if( b->a_peername_pat.bv_len ) {
 704                                                 fprintf( stderr, "%s: line %d: "
 705                                                         "peername pattern already specified.\n",
 706                                                         fname, lineno );
 707                                                 acl_usage();
 708                                         }
 709
 710                                         b->a_peername_style = sty;
 711                                         if (sty == ACL_STYLE_REGEX) {
 712                                                 acl_regex_normalized_dn( right, &bv );
 713                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 714                                                         regtest(fname, lineno, bv.bv_val);
 715                                                 }
 716                                                 b->a_peername_pat = bv;
 717                                         } else {
 718                                                 ber_str2bv( right, 0, 1, &b->a_peername_pat );
 719                                         }
 720                                         continue;
 721                                 }
 722
 723                                 if ( strcasecmp( left, "sockname" ) == 0 ) {
 724                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 725                                                 fprintf( stderr, "%s: line %d: "
 726                                                         "inappropriate style \"%s\" in by clause\n",
 727                                                     fname, lineno, style );
 728                                                 acl_usage();
 729                                         }
 730
 731                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 732                                                 fprintf( stderr, "%s: line %d: "
 733                                                         "missing \"=\" in (or value after) \"%s\" "
 734                                                         "in by clause\n",
 735                                                         fname, lineno, left );
 736                                                 acl_usage();
 737                                         }
 738
 739                                         if( b->a_sockname_pat.bv_len ) {
 740                                                 fprintf( stderr, "%s: line %d: "
 741                                                         "sockname pattern already specified.\n",
 742                                                         fname, lineno );
 743                                                 acl_usage();
 744                                         }
 745
 746                                         b->a_sockname_style = sty;
 747                                         if (sty == ACL_STYLE_REGEX) {
 748                                                 acl_regex_normalized_dn( right, &bv );
 749                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 750                                                         regtest(fname, lineno, bv.bv_val);
 751                                                 }
 752                                                 b->a_sockname_pat = bv;
 753                                         } else {
 754                                                 ber_str2bv( right, 0, 1, &b->a_sockname_pat );
 755                                         }
 756                                         continue;
 757                                 }
 758
 759                                 if ( strcasecmp( left, "domain" ) == 0 ) {
 760                                         switch ( sty ) {
 761                                         case ACL_STYLE_REGEX:
 762                                         case ACL_STYLE_BASE:
 763                                         case ACL_STYLE_SUBTREE:
 764                                                 break;
 765
 766                                         default:
 767                                                 fprintf( stderr,
 768                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 769                                                     fname, lineno, style );
 770                                                 acl_usage();
 771                                         }
 772
 773                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 774                                                 fprintf( stderr,
 775                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 776                                                         fname, lineno, left );
 777                                                 acl_usage();
 778                                         }
 779
 780                                         if( b->a_domain_pat.bv_len ) {
 781                                                 fprintf( stderr,
 782                                                         "%s: line %d: domain pattern already specified.\n",
 783                                                         fname, lineno );
 784                                                 acl_usage();
 785                                         }
 786
 787                                         b->a_domain_style = sty;
 788                                         b->a_domain_expand = expand;
 789                                         if (sty == ACL_STYLE_REGEX) {
 790                                                 acl_regex_normalized_dn( right, &bv );
 791                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 792                                                         regtest(fname, lineno, bv.bv_val);
 793                                                 }
 794                                                 b->a_domain_pat = bv;
 795                                         } else {
 796                                                 ber_str2bv( right, 0, 1, &b->a_domain_pat );
 797                                         }
 798                                         continue;
 799                                 }
 800
 801                                 if ( strcasecmp( left, "sockurl" ) == 0 ) {
 802                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 803                                                 fprintf( stderr,
 804                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 805                                                     fname, lineno, style );
 806                                                 acl_usage();
 807                                         }
 808
 809                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 810                                                 fprintf( stderr,
 811                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 812                                                         fname, lineno, left );
 813                                                 acl_usage();
 814                                         }
 815
 816                                         if( b->a_sockurl_pat.bv_len ) {
 817                                                 fprintf( stderr,
 818                                                         "%s: line %d: sockurl pattern already specified.\n",
 819                                                         fname, lineno );
 820                                                 acl_usage();
 821                                         }
 822
 823                                         b->a_sockurl_style = sty;
 824                                         if (sty == ACL_STYLE_REGEX) {
 825                                                 acl_regex_normalized_dn( right, &bv );
 826                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 827                                                         regtest(fname, lineno, bv.bv_val);
 828                                                 }
 829                                                 b->a_sockurl_pat = bv;
 830                                         } else {
 831                                                 ber_str2bv( right, 0, 1, &b->a_sockurl_pat );
 832                                         }
 833                                         continue;
 834                                 }
 835
 836                                 if ( strcasecmp( left, "set" ) == 0 ) {
 837                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 838                                                 fprintf( stderr,
 839                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 840                                                     fname, lineno, style );
 841                                                 acl_usage();
 842                                         }
 843
 844                                         if( b->a_set_pat.bv_len != 0 ) {
 845                                                 fprintf( stderr,
 846                                                         "%s: line %d: set attribute already specified.\n",
 847                                                         fname, lineno );
 848                                                 acl_usage();
 849                                         }
 850
 851                                         if ( right == NULL || *right == '\0' ) {
 852                                                 fprintf( stderr,
 853                                                         "%s: line %d: no set is defined\n",
 854                                                         fname, lineno );
 855                                                 acl_usage();
 856                                         }
 857
 858                                         b->a_set_style = sty;
 859                                         ber_str2bv( right, 0, 1, &b->a_set_pat );
 860
 861                                         continue;
 862                                 }
 863
 864 #ifdef SLAPD_ACI_ENABLED
 865                                 if ( strcasecmp( left, "aci" ) == 0 ) {
 866                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 867                                                 fprintf( stderr,
 868                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 869                                                     fname, lineno, style );
 870                                                 acl_usage();
 871                                         }
 872
 873                                         if( b->a_aci_at != NULL ) {
 874                                                 fprintf( stderr,
 875                                                         "%s: line %d: aci attribute already specified.\n",
 876                                                         fname, lineno );
 877                                                 acl_usage();
 878                                         }
 879
 880                                         if ( right != NULL && *right != '\0' ) {
 881                                                 rc = slap_str2ad( right, &b->a_aci_at, &text );
 882
 883                                                 if( rc != LDAP_SUCCESS ) {
 884                                                         fprintf( stderr,
 885                                                                 "%s: line %d: aci \"%s\": %s\n",
 886                                                                 fname, lineno, right, text );
 887                                                         acl_usage();
 888                                                 }
 889
 890                                         } else {
 891                                                 b->a_aci_at = slap_schema.si_ad_aci;
 892                                         }
 893
 894                                         if( !is_at_syntax( b->a_aci_at->ad_type,
 895                                                 SLAPD_ACI_SYNTAX) )
 896                                         {
 897                                                 fprintf( stderr,
 898                                                         "%s: line %d: aci \"%s\": inappropriate syntax: %s\n",
 899                                                         fname, lineno, right,
 900                                                         b->a_aci_at->ad_type->sat_syntax_oid );
 901                                                 acl_usage();
 902                                         }
 903
 904                                         continue;
 905                                 }
 906 #endif /* SLAPD_ACI_ENABLED */
 907
 908                                 if ( strcasecmp( left, "ssf" ) == 0 ) {
 909                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 910                                                 fprintf( stderr,
 911                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 912                                                     fname, lineno, style );
 913                                                 acl_usage();
 914                                         }
 915
 916                                         if( b->a_authz.sai_ssf ) {
 917                                                 fprintf( stderr,
 918                                                         "%s: line %d: ssf attribute already specified.\n",
 919                                                         fname, lineno );
 920                                                 acl_usage();
 921                                         }
 922
 923                                         if ( right == NULL || *right == '\0' ) {
 924                                                 fprintf( stderr,
 925                                                         "%s: line %d: no ssf is defined\n",
 926                                                         fname, lineno );
 927                                                 acl_usage();
 928                                         }
 929
 930                                         b->a_authz.sai_ssf = atoi( right );
 931
 932                                         if( !b->a_authz.sai_ssf ) {
 933                                                 fprintf( stderr,
 934                                                         "%s: line %d: invalid ssf value (%s)\n",
 935                                                         fname, lineno, right );
 936                                                 acl_usage();
 937                                         }
 938                                         continue;
 939                                 }
 940
 941                                 if ( strcasecmp( left, "transport_ssf" ) == 0 ) {
 942                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 943                                                 fprintf( stderr,
 944                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 945                                                     fname, lineno, style );
 946                                                 acl_usage();
 947                                         }
 948
 949                                         if( b->a_authz.sai_transport_ssf ) {
 950                                                 fprintf( stderr,
 951                                                         "%s: line %d: transport_ssf attribute already specified.\n",
 952                                                         fname, lineno );
 953                                                 acl_usage();
 954                                         }
 955
 956                                         if ( right == NULL || *right == '\0' ) {
 957                                                 fprintf( stderr,
 958                                                         "%s: line %d: no transport_ssf is defined\n",
 959                                                         fname, lineno );
 960                                                 acl_usage();
 961                                         }
 962
 963                                         b->a_authz.sai_transport_ssf = atoi( right );
 964
 965                                         if( !b->a_authz.sai_transport_ssf ) {
 966                                                 fprintf( stderr,
 967                                                         "%s: line %d: invalid transport_ssf value (%s)\n",
 968                                                         fname, lineno, right );
 969                                                 acl_usage();
 970                                         }
 971                                         continue;
 972                                 }
 973
 974                                 if ( strcasecmp( left, "tls_ssf" ) == 0 ) {
 975                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 976                                                 fprintf( stderr,
 977                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 978                                                     fname, lineno, style );
 979                                                 acl_usage();
 980                                         }
 981
 982                                         if( b->a_authz.sai_tls_ssf ) {
 983                                                 fprintf( stderr,
 984                                                         "%s: line %d: tls_ssf attribute already specified.\n",
 985                                                         fname, lineno );
 986                                                 acl_usage();
 987                                         }
 988
 989                                         if ( right == NULL || *right == '\0' ) {
 990                                                 fprintf( stderr,
 991                                                         "%s: line %d: no tls_ssf is defined\n",
 992                                                         fname, lineno );
 993                                                 acl_usage();
 994                                         }
 995
 996                                         b->a_authz.sai_tls_ssf = atoi( right );
 997
 998                                         if( !b->a_authz.sai_tls_ssf ) {
 999                                                 fprintf( stderr,
1000                                                         "%s: line %d: invalid tls_ssf value (%s)\n",
1001                                                         fname, lineno, right );
1002                                                 acl_usage();
1003                                         }
1004                                         continue;
1005                                 }
1006
1007                                 if ( strcasecmp( left, "sasl_ssf" ) == 0 ) {
1008                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
1009                                                 fprintf( stderr,
1010                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
1011                                                     fname, lineno, style );
1012                                                 acl_usage();
1013                                         }
1014
1015                                         if( b->a_authz.sai_sasl_ssf ) {
1016                                                 fprintf( stderr,
1017                                                         "%s: line %d: sasl_ssf attribute already specified.\n",
1018                                                         fname, lineno );
1019                                                 acl_usage();
1020                                         }
1021
1022                                         if ( right == NULL || *right == '\0' ) {
1023                                                 fprintf( stderr,
1024                                                         "%s: line %d: no sasl_ssf is defined\n",
1025                                                         fname, lineno );
1026                                                 acl_usage();
1027                                         }
1028
1029                                         b->a_authz.sai_sasl_ssf = atoi( right );
1030
1031                                         if( !b->a_authz.sai_sasl_ssf ) {
1032                                                 fprintf( stderr,
1033                                                         "%s: line %d: invalid sasl_ssf value (%s)\n",
1034                                                         fname, lineno, right );
1035                                                 acl_usage();
1036                                         }
1037                                         continue;
1038                                 }
1039
1040                                 if( right != NULL ) {
1041                                         /* unsplit */
1042                                         right[-1] = '=';
1043                                 }
1044                                 break;
1045                         }
1046
1047                         if( i == argc || ( strcasecmp( left, "stop" ) == 0 )) {
1048                                 /* out of arguments or plain stop */
1049
1050                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
1051                                 b->a_type = ACL_STOP;
1052
1053                                 access_append( &a->acl_access, b );
1054                                 continue;
1055                         }
1056
1057                         if( strcasecmp( left, "continue" ) == 0 ) {
1058                                 /* plain continue */
1059
1060                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
1061                                 b->a_type = ACL_CONTINUE;
1062
1063                                 access_append( &a->acl_access, b );
1064                                 continue;
1065                         }
1066
1067                         if( strcasecmp( left, "break" ) == 0 ) {
1068                                 /* plain continue */
1069
1070                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
1071                                 b->a_type = ACL_BREAK;
1072
1073                                 access_append( &a->acl_access, b );
1074                                 continue;
1075                         }
1076
1077                         if ( strcasecmp( left, "by" ) == 0 ) {
1078                                 /* we've gone too far */
1079                                 --i;
1080                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
1081                                 b->a_type = ACL_STOP;
1082
1083                                 access_append( &a->acl_access, b );
1084                                 continue;
1085                         }
1086
1087                         /* get <access> */
1088                         if( strncasecmp( left, "self", 4 ) == 0 ) {
1089                                 b->a_dn_self = 1;
1090                                 ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( &left[4] ) );
1091
1092                         } else {
1093                                 ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( left ) );
1094                         }
1095
1096                         if( ACL_IS_INVALID( b->a_access_mask ) ) {
1097                                 fprintf( stderr,
1098                                         "%s: line %d: expecting <access> got \"%s\"\n",
1099                                         fname, lineno, left );
1100                                 acl_usage();
1101                         }
1102
1103                         b->a_type = ACL_STOP;
1104
1105                         if( ++i == argc ) {
1106                                 /* out of arguments or plain stop */
1107                                 access_append( &a->acl_access, b );
1108                                 continue;
1109                         }
1110
1111                         if( strcasecmp( argv[i], "continue" ) == 0 ) {
1112                                 /* plain continue */
1113                                 b->a_type = ACL_CONTINUE;
1114
1115                         } else if( strcasecmp( argv[i], "break" ) == 0 ) {
1116                                 /* plain continue */
1117                                 b->a_type = ACL_BREAK;
1118
1119                         } else if ( strcasecmp( argv[i], "stop" ) != 0 ) {
1120                                 /* gone to far */
1121                                 i--;
1122                         }
1123
1124                         access_append( &a->acl_access, b );
1125
1126                 } else {
1127                         fprintf( stderr,
1128                     "%s: line %d: expecting \"to\" or \"by\" got \"%s\"\n",
1129                             fname, lineno, argv[i] );
1130                         acl_usage();
1131                 }
1132         }
1133
1134         /* if we have no real access clause, complain and do nothing */
1135         if ( a == NULL ) {
1136                         fprintf( stderr,
1137                                 "%s: line %d: warning: no access clause(s) specified in access line\n",
1138                             fname, lineno );
1139
1140         } else {
1141 #ifdef LDAP_DEBUG
1142                 if (ldap_debug & LDAP_DEBUG_ACL)
1143                         print_acl(be, a);
1144 #endif
1145
1146                 if ( a->acl_access == NULL ) {
1147                         fprintf( stderr,
1148                         "%s: line %d: warning: no by clause(s) specified in access line\n",
1149                             fname, lineno );
1150                 }
1151
1152                 if ( be != NULL ) {
1153                         acl_append( &be->be_acl, a );
1154                 } else {
1155                         acl_append( &global_acl, a );
1156                 }
1157         }
1158 }
1159
1160 char *
1161 accessmask2str( slap_mask_t mask, char *buf )
1162 {
1163         int none=1;
1164         char *ptr = buf;
1165
1166         assert( buf != NULL );
1167
1168         if ( ACL_IS_INVALID( mask ) ) {
1169                 return "invalid";
1170         }
1171
1172         buf[0] = '\0';
1173
1174         if ( ACL_IS_LEVEL( mask ) ) {
1175                 if ( ACL_LVL_IS_NONE(mask) ) {
1176                         ptr = lutil_strcopy( ptr, "none" );
1177
1178                 } else if ( ACL_LVL_IS_AUTH(mask) ) {
1179                         ptr = lutil_strcopy( ptr, "auth" );
1180
1181                 } else if ( ACL_LVL_IS_COMPARE(mask) ) {
1182                         ptr = lutil_strcopy( ptr, "compare" );
1183
1184                 } else if ( ACL_LVL_IS_SEARCH(mask) ) {
1185                         ptr = lutil_strcopy( ptr, "search" );
1186
1187                 } else if ( ACL_LVL_IS_READ(mask) ) {
1188                         ptr = lutil_strcopy( ptr, "read" );
1189
1190                 } else if ( ACL_LVL_IS_WRITE(mask) ) {
1191                         ptr = lutil_strcopy( ptr, "write" );
1192                 } else {
1193                         ptr = lutil_strcopy( ptr, "unknown" );
1194                 }
1195
1196                 *ptr++ = '(';
1197         }
1198
1199         if( ACL_IS_ADDITIVE( mask ) ) {
1200                 *ptr++ = '+';
1201
1202         } else if( ACL_IS_SUBTRACTIVE( mask ) ) {
1203                 *ptr++ = '-';
1204
1205         } else {
1206                 *ptr++ = '=';
1207         }
1208
1209         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_WRITE) ) {
1210                 none = 0;
1211                 *ptr++ = 'w';
1212         }
1213
1214         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_READ) ) {
1215                 none = 0;
1216                 *ptr++ = 'r';
1217         }
1218
1219         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_SEARCH) ) {
1220                 none = 0;
1221                 *ptr++ = 's';
1222         }
1223
1224         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_COMPARE) ) {
1225                 none = 0;
1226                 *ptr++ = 'c';
1227         }
1228
1229         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_AUTH) ) {
1230                 none = 0;
1231                 *ptr++ = 'x';
1232         }
1233
1234         if ( none && ACL_PRIV_ISSET(mask, ACL_PRIV_NONE) ) {
1235                 none = 0;
1236                 *ptr++ = 'n';
1237         }
1238
1239         if ( none ) {
1240                 *ptr++ = '0';
1241         }
1242
1243         if ( ACL_IS_LEVEL( mask ) ) {
1244                 *ptr++ = ')';
1245         }
1246
1247         *ptr = '\0';
1248
1249         return buf;
1250 }
1251
1252 slap_mask_t
1253 str2accessmask( const char *str )
1254 {
1255         slap_mask_t     mask;
1256
1257         if( !ASCII_ALPHA(str[0]) ) {
1258                 int i;
1259
1260                 if ( str[0] == '=' ) {
1261                         ACL_INIT(mask);
1262
1263                 } else if( str[0] == '+' ) {
1264                         ACL_PRIV_ASSIGN(mask, ACL_PRIV_ADDITIVE);
1265
1266                 } else if( str[0] == '-' ) {
1267                         ACL_PRIV_ASSIGN(mask, ACL_PRIV_SUBSTRACTIVE);
1268
1269                 } else {
1270                         ACL_INVALIDATE(mask);
1271                         return mask;
1272                 }
1273
1274                 for( i=1; str[i] != '\0'; i++ ) {
1275                         if( TOLOWER((unsigned char) str[i]) == 'w' ) {
1276                                 ACL_PRIV_SET(mask, ACL_PRIV_WRITE);
1277
1278                         } else if( TOLOWER((unsigned char) str[i]) == 'r' ) {
1279                                 ACL_PRIV_SET(mask, ACL_PRIV_READ);
1280
1281                         } else if( TOLOWER((unsigned char) str[i]) == 's' ) {
1282                                 ACL_PRIV_SET(mask, ACL_PRIV_SEARCH);
1283
1284                         } else if( TOLOWER((unsigned char) str[i]) == 'c' ) {
1285                                 ACL_PRIV_SET(mask, ACL_PRIV_COMPARE);
1286
1287                         } else if( TOLOWER((unsigned char) str[i]) == 'x' ) {
1288                                 ACL_PRIV_SET(mask, ACL_PRIV_AUTH);
1289
1290                         } else if( str[i] != '0' ) {
1291                                 ACL_INVALIDATE(mask);
1292                                 return mask;
1293                         }
1294                 }
1295
1296                 return mask;
1297         }
1298
1299         if ( strcasecmp( str, "none" ) == 0 ) {
1300                 ACL_LVL_ASSIGN_NONE(mask);
1301
1302         } else if ( strcasecmp( str, "auth" ) == 0 ) {
1303                 ACL_LVL_ASSIGN_AUTH(mask);
1304
1305         } else if ( strcasecmp( str, "compare" ) == 0 ) {
1306                 ACL_LVL_ASSIGN_COMPARE(mask);
1307
1308         } else if ( strcasecmp( str, "search" ) == 0 ) {
1309                 ACL_LVL_ASSIGN_SEARCH(mask);
1310
1311         } else if ( strcasecmp( str, "read" ) == 0 ) {
1312                 ACL_LVL_ASSIGN_READ(mask);
1313
1314         } else if ( strcasecmp( str, "write" ) == 0 ) {
1315                 ACL_LVL_ASSIGN_WRITE(mask);
1316
1317         } else {
1318                 ACL_INVALIDATE( mask );
1319         }
1320
1321         return mask;
1322 }
1323
1324 static void
1325 acl_usage( void )
1326 {
1327         fprintf( stderr, "%s%s\n",
1328                 "<access clause> ::= access to <what> "
1329                                 "[ by <who> <access> [ <control> ] ]+ \n"
1330                 "<what> ::= * | [dn[.<dnstyle>]=<DN>] [filter=<filter>] [attrs=<attrlist>]\n"
1331                 "<attrlist> ::= <attr> [val[.<style>]=<value>] | <attr> , <attrlist>\n"
1332                 "<attr> ::= <attrname> | entry | children\n"
1333                 "<who> ::= [ * | anonymous | users | self | dn[.<dnstyle>]=<DN> ]\n"
1334                         "\t[dnattr=<attrname>]\n"
1335                         "\t[group[/<objectclass>[/<attrname>]][.<style>]=<group>]\n"
1336                         "\t[peername[.<style>]=<peer>] [sockname[.<style>]=<name>]\n",
1337                         "\t[domain[.<style>]=<domain>] [sockurl[.<style>]=<url>]\n"
1338 #ifdef SLAPD_ACI_ENABLED
1339                         "\t[aci=<attrname>]\n"
1340 #endif
1341                         "\t[ssf=<n>] [transport_ssf=<n>] [tls_ssf=<n>] [sasl_ssf=<n>]\n"
1342                 "<dnstyle> ::= base | exact | one | subtree | children | regex\n"
1343                 "<style> ::= regex | base | exact\n"
1344                 "<access> ::= [self]{<level>|<priv>}\n"
1345                 "<level> ::= none | auth | compare | search | read | write\n"
1346                 "<priv> ::= {=|+|-}{w|r|s|c|x}+\n"
1347                 "<control> ::= [ stop | continue | break ]\n"
1348         );
1349         exit( EXIT_FAILURE );
1350 }
1351
1352 /*
1353  * Set pattern to a "normalized" DN from src.
1354  * At present it simply eats the (optional) space after
1355  * a RDN separator (,)
1356  * Eventually will evolve in a more complete normalization
1357  */
1358 static void
1359 acl_regex_normalized_dn(
1360         const char *src,
1361         struct berval *pattern
1362 )
1363 {
1364         char *str, *p;
1365         ber_len_t len;
1366
1367         str = ch_strdup( src );
1368         len = strlen( src );
1369
1370         for ( p = str; p && p[ 0 ]; p++ ) {
1371                 /* escape */
1372                 if ( p[ 0 ] == '\\' && p[ 1 ] ) {
1373                         /*
1374                          * if escaping a hex pair we should
1375                          * increment p twice; however, in that
1376                          * case the second hex number does
1377                          * no harm
1378                          */
1379                         p++;
1380                 }
1381
1382                 if ( p[ 0 ] == ',' ) {
1383                         if ( p[ 1 ] == ' ' ) {
1384                                 char *q;
1385
1386                                 /*
1387                                  * too much space should be
1388                                  * an error if we are pedantic
1389                                  */
1390                                 for ( q = &p[ 2 ]; q[ 0 ] == ' '; q++ ) {
1391                                         /* DO NOTHING */ ;
1392                                 }
1393                                 AC_MEMCPY( p+1, q, len-(q-str)+1);
1394                         }
1395                 }
1396         }
1397         pattern->bv_val = str;
1398         pattern->bv_len = p-str;
1399
1400         return;
1401 }
1402
1403 static void
1404 split(
1405     char        *line,
1406     int         splitchar,
1407     char        **left,
1408     char        **right
1409 )
1410 {
1411         *left = line;
1412         if ( (*right = strchr( line, splitchar )) != NULL ) {
1413                 *((*right)++) = '\0';
1414         }
1415 }
1416
1417 static void
1418 access_append( Access **l, Access *a )
1419 {
1420         for ( ; *l != NULL; l = &(*l)->a_next )
1421                 ;       /* NULL */
1422
1423         *l = a;
1424 }
1425
1426 void
1427 acl_append( AccessControl **l, AccessControl *a )
1428 {
1429         for ( ; *l != NULL; l = &(*l)->acl_next )
1430                 ;       /* NULL */
1431
1432         *l = a;
1433 }
1434
1435 static void
1436 access_free( Access *a )
1437 {
1438         if ( a->a_dn_pat.bv_val )
1439                 free ( a->a_dn_pat.bv_val );
1440         if ( a->a_peername_pat.bv_val )
1441                 free ( a->a_peername_pat.bv_val );
1442         if ( a->a_sockname_pat.bv_val )
1443                 free ( a->a_sockname_pat.bv_val );
1444         if ( a->a_domain_pat.bv_val )
1445                 free ( a->a_domain_pat.bv_val );
1446         if ( a->a_sockurl_pat.bv_val )
1447                 free ( a->a_sockurl_pat.bv_val );
1448         if ( a->a_set_pat.bv_len )
1449                 free ( a->a_set_pat.bv_val );
1450         if ( a->a_group_pat.bv_len )
1451                 free ( a->a_group_pat.bv_val );
1452         free( a );
1453 }
1454
1455 void
1456 acl_free( AccessControl *a )
1457 {
1458         Access *n;
1459         AttributeName *an;
1460
1461         if ( a->acl_filter )
1462                 filter_free( a->acl_filter );
1463         if ( a->acl_dn_pat.bv_len )
1464                 free ( a->acl_dn_pat.bv_val );
1465         if ( a->acl_attrs ) {
1466                 for ( an = a->acl_attrs; an->an_name.bv_val; an++ ) {
1467                         free( an->an_name.bv_val );
1468                 }
1469                 free( a->acl_attrs );
1470         }
1471         for (; a->acl_access; a->acl_access = n) {
1472                 n = a->acl_access->a_next;
1473                 access_free( a->acl_access );
1474         }
1475         free( a );
1476 }
1477
1478 /* Because backend_startup uses acl_append to tack on the global_acl to
1479  * the end of each backend's acl, we cannot just take one argument and
1480  * merrily free our way to the end of the list. backend_destroy calls us
1481  * with the be_acl in arg1, and global_acl in arg2 to give us a stopping
1482  * point. config_destroy calls us with global_acl in arg1 and NULL in
1483  * arg2, so we then proceed to polish off the global_acl.
1484  */
1485 void
1486 acl_destroy( AccessControl *a, AccessControl *end )
1487 {
1488         AccessControl *n;
1489
1490         for (; a && a!= end; a=n) {
1491                 n = a->acl_next;
1492                 acl_free( a );
1493         }
1494 }
1495
1496 char *
1497 access2str( slap_access_t access )
1498 {
1499         if ( access == ACL_NONE ) {
1500                 return "none";
1501
1502         } else if ( access == ACL_AUTH ) {
1503                 return "auth";
1504
1505         } else if ( access == ACL_COMPARE ) {
1506                 return "compare";
1507
1508         } else if ( access == ACL_SEARCH ) {
1509                 return "search";
1510
1511         } else if ( access == ACL_READ ) {
1512                 return "read";
1513
1514         } else if ( access == ACL_WRITE ) {
1515                 return "write";
1516         }
1517
1518         return "unknown";
1519 }
1520
1521 slap_access_t
1522 str2access( const char *str )
1523 {
1524         if ( strcasecmp( str, "none" ) == 0 ) {
1525                 return ACL_NONE;
1526
1527         } else if ( strcasecmp( str, "auth" ) == 0 ) {
1528                 return ACL_AUTH;
1529
1530         } else if ( strcasecmp( str, "compare" ) == 0 ) {
1531                 return ACL_COMPARE;
1532
1533         } else if ( strcasecmp( str, "search" ) == 0 ) {
1534                 return ACL_SEARCH;
1535
1536         } else if ( strcasecmp( str, "read" ) == 0 ) {
1537                 return ACL_READ;
1538
1539         } else if ( strcasecmp( str, "write" ) == 0 ) {
1540                 return ACL_WRITE;
1541         }
1542
1543         return( ACL_INVALID_ACCESS );
1544 }
1545
1546 #ifdef LDAP_DEBUG
1547
1548 static char *style_strings[5] = { "regex",
1549         "base", "one", "subtree", "children" };
1550
1551 static void
1552 print_access( Access *b )
1553 {
1554         char maskbuf[ACCESSMASK_MAXLEN];
1555
1556         fprintf( stderr, "\tby" );
1557
1558         if ( b->a_dn_pat.bv_len != 0 ) {
1559                 if( strcmp(b->a_dn_pat.bv_val, "*") == 0
1560                         || strcmp(b->a_dn_pat.bv_val, "users") == 0
1561                         || strcmp(b->a_dn_pat.bv_val, "anonymous") == 0
1562                         || strcmp(b->a_dn_pat.bv_val, "self") == 0 )
1563                 {
1564                         fprintf( stderr, " %s", b->a_dn_pat.bv_val );
1565
1566                 } else {
1567                         fprintf( stderr, " dn.%s=%s",
1568                                 style_strings[b->a_dn_style], b->a_dn_pat.bv_val );
1569                 }
1570         }
1571
1572         if ( b->a_dn_at != NULL ) {
1573                 fprintf( stderr, " dnattr=%s", b->a_dn_at->ad_cname.bv_val );
1574         }
1575
1576         if ( b->a_group_pat.bv_len ) {
1577                 fprintf( stderr, " group=%s", b->a_group_pat.bv_val );
1578
1579                 if ( b->a_group_oc ) {
1580                         fprintf( stderr, " objectClass: %s",
1581                                 b->a_group_oc->soc_oclass.oc_oid );
1582
1583                         if ( b->a_group_at ) {
1584                                 fprintf( stderr, " attributeType: %s",
1585                                         b->a_group_at->ad_cname.bv_val );
1586                         }
1587                 }
1588     }
1589
1590         if ( b->a_peername_pat.bv_len != 0 ) {
1591                 fprintf( stderr, " peername=%s", b->a_peername_pat.bv_val );
1592         }
1593
1594         if ( b->a_sockname_pat.bv_len != 0 ) {
1595                 fprintf( stderr, " sockname=%s", b->a_sockname_pat.bv_val );
1596         }
1597
1598         if ( b->a_domain_pat.bv_len != 0 ) {
1599                 fprintf( stderr, " domain=%s", b->a_domain_pat.bv_val );
1600         }
1601
1602         if ( b->a_sockurl_pat.bv_len != 0 ) {
1603                 fprintf( stderr, " sockurl=%s", b->a_sockurl_pat.bv_val );
1604         }
1605
1606 #ifdef SLAPD_ACI_ENABLED
1607         if ( b->a_aci_at != NULL ) {
1608                 fprintf( stderr, " aci=%s", b->a_aci_at->ad_cname.bv_val );
1609         }
1610 #endif
1611
1612         /* Security Strength Factors */
1613         if ( b->a_authz.sai_ssf ) {
1614                 fprintf( stderr, " ssf=%u",
1615                         b->a_authz.sai_ssf );
1616         }
1617         if ( b->a_authz.sai_transport_ssf ) {
1618                 fprintf( stderr, " transport_ssf=%u",
1619                         b->a_authz.sai_transport_ssf );
1620         }
1621         if ( b->a_authz.sai_tls_ssf ) {
1622                 fprintf( stderr, " tls_ssf=%u",
1623                         b->a_authz.sai_tls_ssf );
1624         }
1625         if ( b->a_authz.sai_sasl_ssf ) {
1626                 fprintf( stderr, " sasl_ssf=%u",
1627                         b->a_authz.sai_sasl_ssf );
1628         }
1629
1630         fprintf( stderr, " %s%s",
1631                 b->a_dn_self ? "self" : "",
1632                 accessmask2str( b->a_access_mask, maskbuf ) );
1633
1634         if( b->a_type == ACL_BREAK ) {
1635                 fprintf( stderr, " break" );
1636
1637         } else if( b->a_type == ACL_CONTINUE ) {
1638                 fprintf( stderr, " continue" );
1639
1640         } else if( b->a_type != ACL_STOP ) {
1641                 fprintf( stderr, " unknown-control" );
1642         }
1643
1644         fprintf( stderr, "\n" );
1645 }
1646
1647
1648 static void
1649 print_acl( Backend *be, AccessControl *a )
1650 {
1651         int             to = 0;
1652         Access  *b;
1653
1654         fprintf( stderr, "%s ACL: access to",
1655                 be == NULL ? "Global" : "Backend" );
1656
1657         if ( a->acl_dn_pat.bv_len != 0 ) {
1658                 to++;
1659                 fprintf( stderr, " dn.%s=%s\n",
1660                         style_strings[a->acl_dn_style], a->acl_dn_pat.bv_val );
1661         }
1662
1663         if ( a->acl_filter != NULL ) {
1664                 struct berval bv = { 0, NULL };
1665                 to++;
1666                 filter2bv( a->acl_filter, &bv );
1667                 fprintf( stderr, " filter=%s\n", bv.bv_val );
1668                 ch_free( bv.bv_val );
1669         }
1670
1671         if ( a->acl_attrs != NULL ) {
1672                 int     first = 1;
1673                 AttributeName *an;
1674                 to++;
1675
1676                 fprintf( stderr, " attrs=" );
1677                 for ( an = a->acl_attrs; an && an->an_name.bv_val; an++ ) {
1678                         if ( ! first ) {
1679                                 fprintf( stderr, "," );
1680                         }
1681                         fputs( an->an_name.bv_val, stderr );
1682                         first = 0;
1683                 }
1684                 fprintf(  stderr, "\n" );
1685         }
1686
1687         if ( a->acl_attrval.bv_len != 0 ) {
1688                 to++;
1689                 fprintf( stderr, " val.%s=%s\n",
1690                         style_strings[a->acl_attrval_style], a->acl_attrval.bv_val );
1691
1692         }
1693
1694         if( !to ) {
1695                 fprintf( stderr, " *\n" );
1696         }
1697
1698         for ( b = a->acl_access; b != NULL; b = b->a_next ) {
1699                 print_access( b );
1700         }
1701
1702         fprintf( stderr, "\n" );
1703 }
1704
1705 #endif /* LDAP_DEBUG */