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                                                 a->acl_dn_style = ACL_STYLE_SUBTREE;
 173                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 174
 175                                         } else if ( strcasecmp( style, "children" ) == 0 ) {
 176                                                 a->acl_dn_style = ACL_STYLE_CHILDREN;
 177                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 178
 179                                         } else if ( strcasecmp( style, "regex" ) == 0 ) {
 180                                                 a->acl_dn_style = ACL_STYLE_REGEX;
 181
 182                                                 if ( *right == '\0' ) {
 183                                                         /* empty regex should match empty DN */
 184                                                         a->acl_dn_style = ACL_STYLE_BASE;
 185                                                         ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 186
 187                                                 } else if ( strcmp(right, "*") == 0
 188                                                         || strcmp(right, ".*") == 0
 189                                                         || strcmp(right, ".*$") == 0
 190                                                         || strcmp(right, "^.*") == 0
 191                                                         || strcmp(right, "^.*$") == 0
 192                                                         || strcmp(right, ".*$$") == 0
 193                                                         || strcmp(right, "^.*$$") == 0 )
 194                                                 {
 195                                                         a->acl_dn_pat.bv_val = ch_strdup( "*" );
 196                                                         a->acl_dn_pat.bv_len = sizeof("*")-1;
 197
 198                                                 } else {
 199                                                         acl_regex_normalized_dn( right, &a->acl_dn_pat );
 200                                                 }
 201
 202                                         } else {
 203                                                 fprintf( stderr, "%s: line %d: "
 204                                                         "unknown dn style \"%s\" in to clause\n",
 205                                                     fname, lineno, style );
 206                                                 acl_usage();
 207                                         }
 208
 209                                         continue;
 210                                 }
 211
 212                                 if ( strcasecmp( left, "filter" ) == 0 ) {
 213                                         if ( (a->acl_filter = str2filter( right )) == NULL ) {
 214                                                 fprintf( stderr,
 215                                 "%s: line %d: bad filter \"%s\" in to clause\n",
 216                                                     fname, lineno, right );
 217                                                 acl_usage();
 218                                         }
 219
 220                                 } else if ( strncasecmp( left, "attr", 4 ) == 0 ) {
 221                                         a->acl_attrs = str2anlist( a->acl_attrs,
 222                                                 right, "," );
 223                                         if ( a->acl_attrs == NULL ) {
 224                                                 fprintf( stderr,
 225                                 "%s: line %d: unknown attr \"%s\" in to clause\n",
 226                                                     fname, lineno, right );
 227                                                 acl_usage();
 228                                         }
 229
 230                                 } else {
 231                                         fprintf( stderr,
 232                                                 "%s: line %d: expecting <what> got \"%s\"\n",
 233                                             fname, lineno, left );
 234                                         acl_usage();
 235                                 }
 236                         }
 237
 238                         if ( a->acl_dn_pat.bv_len != 0 &&
 239                                 strcmp(a->acl_dn_pat.bv_val, "*") == 0 )
 240                         {
 241                                 free( a->acl_dn_pat.bv_val );
 242                                 a->acl_dn_pat.bv_val = NULL;
 243                                 a->acl_dn_pat.bv_len = 0;
 244                         }
 245
 246                         if( a->acl_dn_pat.bv_len != 0 ||
 247                                 ( a->acl_dn_style != ACL_STYLE_REGEX ) )
 248                         {
 249                                 if ( a->acl_dn_style != ACL_STYLE_REGEX ) {
 250                                         struct berval bv;
 251                                         rc = dnNormalize( 0, NULL, NULL, &a->acl_dn_pat, &bv, NULL);
 252                                         if ( rc != LDAP_SUCCESS ) {
 253                                                 fprintf( stderr,
 254                                                         "%s: line %d: bad DN \"%s\" in to DN clause\n",
 255                                                         fname, lineno, a->acl_dn_pat.bv_val );
 256                                                 acl_usage();
 257                                         }
 258                                         free( a->acl_dn_pat.bv_val );
 259                                         a->acl_dn_pat = bv;
 260                                 } else {
 261                                         int e = regcomp( &a->acl_dn_re, a->acl_dn_pat.bv_val,
 262                                                 REG_EXTENDED | REG_ICASE );
 263                                         if ( e ) {
 264                                                 char buf[512];
 265                                                 regerror( e, &a->acl_dn_re, buf, sizeof(buf) );
 266                                                 fprintf( stderr, "%s: line %d: "
 267                                                         "regular expression \"%s\" bad because of %s\n",
 268                                                         fname, lineno, right, buf );
 269                                                 acl_usage();
 270                                         }
 271                                 }
 272                         }
 273
 274                 /* by clause - select who has what access to entries */
 275                 } else if ( strcasecmp( argv[i], "by" ) == 0 ) {
 276                         if ( a == NULL ) {
 277                                 fprintf( stderr, "%s: line %d: "
 278                                         "to clause required before by clause in access line\n",
 279                                     fname, lineno );
 280                                 acl_usage();
 281                         }
 282
 283                         /*
 284                          * by clause consists of <who> and <access>
 285                          */
 286
 287                         b = (Access *) ch_calloc( 1, sizeof(Access) );
 288
 289                         ACL_INVALIDATE( b->a_access_mask );
 290
 291                         if ( ++i == argc ) {
 292                                 fprintf( stderr,
 293                             "%s: line %d: premature eol: expecting <who>\n",
 294                                     fname, lineno );
 295                                 acl_usage();
 296                         }
 297
 298                         /* get <who> */
 299                         for ( ; i < argc; i++ ) {
 300                                 slap_style_t sty = ACL_STYLE_REGEX;
 301                                 char *style_modifier = NULL;
 302                                 int expand = 0;
 303
 304                                 split( argv[i], '=', &left, &right );
 305                                 split( left, '.', &left, &style );
 306                                 if ( style ) {
 307                                         split( style, ',', &style, &style_modifier);
 308                                 }
 309
 310                                 if ( style == NULL || *style == '\0' ||
 311                                         strcasecmp( style, "exact" ) == 0 ||
 312                                         strcasecmp( style, "base" ) == 0 )
 313                                 {
 314                                         sty = ACL_STYLE_BASE;
 315
 316                                 } else if ( strcasecmp( style, "one" ) == 0 ) {
 317                                         sty = ACL_STYLE_ONE;
 318
 319                                 } else if ( strcasecmp( style, "subtree" ) == 0 ||
 320                                         strcasecmp( style, "sub" ) == 0 )
 321                                 {
 322                                         sty = ACL_STYLE_SUBTREE;
 323
 324                                 } else if ( strcasecmp( style, "children" ) == 0 ) {
 325                                         sty = ACL_STYLE_CHILDREN;
 326
 327                                 } else if ( strcasecmp( style, "regex" ) == 0 ) {
 328                                         sty = ACL_STYLE_REGEX;
 329
 330                                 } else {
 331                                         fprintf( stderr,
 332                                                 "%s: line %d: unknown style \"%s\" in by clause\n",
 333                                             fname, lineno, style );
 334                                         acl_usage();
 335                                 }
 336
 337                                 if ( style_modifier &&
 338                                         strcasecmp( style_modifier, "expand" ) == 0 )
 339                                 {
 340                                         expand = 1;
 341                                 }
 342
 343                                 if ( strcasecmp( argv[i], "*" ) == 0 ) {
 344                                         bv.bv_val = ch_strdup( "*" );
 345                                         bv.bv_len = 1;
 346                                         sty = ACL_STYLE_REGEX;
 347
 348                                 } else if ( strcasecmp( argv[i], "anonymous" ) == 0 ) {
 349                                         ber_str2bv("anonymous", sizeof("anonymous")-1, 1, &bv);
 350                                         sty = ACL_STYLE_REGEX;
 351
 352                                 } else if ( strcasecmp( argv[i], "self" ) == 0 ) {
 353                                         ber_str2bv("self", sizeof("self")-1, 1, &bv);
 354                                         sty = ACL_STYLE_REGEX;
 355
 356                                 } else if ( strcasecmp( argv[i], "users" ) == 0 ) {
 357                                         ber_str2bv("users", sizeof("users")-1, 1, &bv);
 358                                         sty = ACL_STYLE_REGEX;
 359
 360                                 } else if ( strcasecmp( left, "dn" ) == 0 ) {
 361                                         if ( sty == ACL_STYLE_REGEX ) {
 362                                                 b->a_dn_style = ACL_STYLE_REGEX;
 363                                                 if( right == NULL ) {
 364                                                         /* no '=' */
 365                                                         ber_str2bv("users",
 366                                                                 sizeof("users")-1,
 367                                                                 1, &bv);
 368                                                 } else if (*right == '\0' ) {
 369                                                         /* dn="" */
 370                                                         ber_str2bv("anonymous",
 371                                                                 sizeof("anonymous")-1,
 372                                                                 1, &bv);
 373                                                 } else if ( strcmp( right, "*" ) == 0 ) {
 374                                                         /* dn=* */
 375                                                         /* any or users?  users for now */
 376                                                         ber_str2bv("users",
 377                                                                 sizeof("users")-1,
 378                                                                 1, &bv);
 379                                                 } else if ( strcmp( right, ".+" ) == 0
 380                                                         || strcmp( right, "^.+" ) == 0
 381                                                         || strcmp( right, ".+$" ) == 0
 382                                                         || strcmp( right, "^.+$" ) == 0
 383                                                         || strcmp( right, ".+$$" ) == 0
 384                                                         || strcmp( right, "^.+$$" ) == 0 )
 385                                                 {
 386                                                         ber_str2bv("users",
 387                                                                 sizeof("users")-1,
 388                                                                 1, &bv);
 389                                                 } else if ( strcmp( right, ".*" ) == 0
 390                                                         || strcmp( right, "^.*" ) == 0
 391                                                         || strcmp( right, ".*$" ) == 0
 392                                                         || strcmp( right, "^.*$" ) == 0
 393                                                         || strcmp( right, ".*$$" ) == 0
 394                                                         || strcmp( right, "^.*$$" ) == 0 )
 395                                                 {
 396                                                         ber_str2bv("*",
 397                                                                 sizeof("*")-1,
 398                                                                 1, &bv);
 399
 400                                                 } else {
 401                                                         acl_regex_normalized_dn( right, &bv );
 402                                                         if ( !ber_bvccmp( &bv, '*' ) ) {
 403                                                                 regtest(fname, lineno, bv.bv_val);
 404                                                         }
 405                                                 }
 406                                         } else if ( right == NULL || *right == '\0' ) {
 407                                                 fprintf( stderr, "%s: line %d: "
 408                                                         "missing \"=\" in (or value after) \"%s\" "
 409                                                         "in by clause\n",
 410                                                     fname, lineno, left );
 411                                                 acl_usage();
 412
 413                                         } else {
 414                                                 ber_str2bv( right, 0, 1, &bv );
 415                                         }
 416
 417                                 } else {
 418                                         bv.bv_val = NULL;
 419                                 }
 420
 421                                 if( bv.bv_val != NULL ) {
 422                                         if( b->a_dn_pat.bv_len != 0 ) {
 423                                                 fprintf( stderr,
 424                                                     "%s: line %d: dn pattern already specified.\n",
 425                                                     fname, lineno );
 426                                                 acl_usage();
 427                                         }
 428
 429                                         if ( sty != ACL_STYLE_REGEX && expand == 0 ) {
 430                                                 rc = dnNormalize(0, NULL, NULL,
 431                                                         &bv, &b->a_dn_pat, NULL);
 432                                                 if ( rc != LDAP_SUCCESS ) {
 433                                                         fprintf( stderr,
 434                                                                 "%s: line %d: bad DN \"%s\" in by DN clause\n",
 435                                                                 fname, lineno, bv.bv_val );
 436                                                         acl_usage();
 437                                                 }
 438                                                 free(bv.bv_val);
 439                                         } else {
 440                                                 b->a_dn_pat = bv;
 441                                         }
 442                                         b->a_dn_style = sty;
 443                                         b->a_dn_expand = expand;
 444                                         continue;
 445                                 }
 446
 447                                 if ( strcasecmp( left, "dnattr" ) == 0 ) {
 448                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 449                                                 fprintf( stderr,
 450                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 451                                                         fname, lineno, left );
 452                                                 acl_usage();
 453                                         }
 454
 455                                         if( b->a_dn_at != NULL ) {
 456                                                 fprintf( stderr,
 457                                                         "%s: line %d: dnattr already specified.\n",
 458                                                         fname, lineno );
 459                                                 acl_usage();
 460                                         }
 461
 462                                         rc = slap_str2ad( right, &b->a_dn_at, &text );
 463
 464                                         if( rc != LDAP_SUCCESS ) {
 465                                                 fprintf( stderr,
 466                                                         "%s: line %d: dnattr \"%s\": %s\n",
 467                                                         fname, lineno, right, text );
 468                                                 acl_usage();
 469                                         }
 470
 471
 472                                         if( !is_at_syntax( b->a_dn_at->ad_type,
 473                                                 SLAPD_DN_SYNTAX ) &&
 474                                                 !is_at_syntax( b->a_dn_at->ad_type,
 475                                                 SLAPD_NAMEUID_SYNTAX ))
 476                                         {
 477                                                 fprintf( stderr,
 478                                                         "%s: line %d: dnattr \"%s\": "
 479                                                         "inappropriate syntax: %s\n",
 480                                                         fname, lineno, right,
 481                                                         b->a_dn_at->ad_type->sat_syntax_oid );
 482                                                 acl_usage();
 483                                         }
 484
 485                                         if( b->a_dn_at->ad_type->sat_equality == NULL ) {
 486                                                 fprintf( stderr,
 487                                                         "%s: line %d: dnattr \"%s\": "
 488                                                         "inappropriate matching (no EQUALITY)\n",
 489                                                         fname, lineno, right );
 490                                                 acl_usage();
 491                                         }
 492
 493                                         continue;
 494                                 }
 495
 496                                 if ( strncasecmp( left, "group", sizeof("group")-1 ) == 0 ) {
 497                                         char *name = NULL;
 498                                         char *value = NULL;
 499
 500                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 501                                                 fprintf( stderr, "%s: line %d: "
 502                                                         "inappropriate style \"%s\" in by clause\n",
 503                                                     fname, lineno, style );
 504                                                 acl_usage();
 505                                         }
 506
 507                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 508                                                 fprintf( stderr, "%s: line %d: "
 509                                                         "missing \"=\" in (or value after) \"%s\" "
 510                                                         "in by clause\n",
 511                                                         fname, lineno, left );
 512                                                 acl_usage();
 513                                         }
 514
 515                                         if( b->a_group_pat.bv_len ) {
 516                                                 fprintf( stderr,
 517                                                         "%s: line %d: group pattern already specified.\n",
 518                                                         fname, lineno );
 519                                                 acl_usage();
 520                                         }
 521
 522                                         /* format of string is
 523                                                 "group/objectClassValue/groupAttrName" */
 524                                         if ((value = strchr(left, '/')) != NULL) {
 525                                                 *value++ = '\0';
 526                                                 if (*value && (name = strchr(value, '/')) != NULL) {
 527                                                         *name++ = '\0';
 528                                                 }
 529                                         }
 530
 531                                         b->a_group_style = sty;
 532                                         if (sty == ACL_STYLE_REGEX) {
 533                                                 acl_regex_normalized_dn( right, &bv );
 534                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 535                                                         regtest(fname, lineno, bv.bv_val);
 536                                                 }
 537                                                 b->a_group_pat = bv;
 538                                         } else {
 539                                                 ber_str2bv( right, 0, 0, &bv );
 540                                                 rc = dnNormalize( 0, NULL, NULL, &bv,
 541                                                         &b->a_group_pat, NULL );
 542                                                 if ( rc != LDAP_SUCCESS ) {
 543                                                         fprintf( stderr,
 544                                                                 "%s: line %d: bad DN \"%s\"\n",
 545                                                                 fname, lineno, right );
 546                                                         acl_usage();
 547                                                 }
 548                                         }
 549
 550                                         if (value && *value) {
 551                                                 b->a_group_oc = oc_find( value );
 552                                                 *--value = '/';
 553
 554                                                 if( b->a_group_oc == NULL ) {
 555                                                         fprintf( stderr,
 556                                                                 "%s: line %d: group objectclass "
 557                                                                 "\"%s\" unknown\n",
 558                                                                 fname, lineno, value );
 559                                                         acl_usage();
 560                                                 }
 561                                         } else {
 562                                                 b->a_group_oc = oc_find(SLAPD_GROUP_CLASS);
 563
 564                                                 if( b->a_group_oc == NULL ) {
 565                                                         fprintf( stderr,
 566                                                                 "%s: line %d: group default objectclass "
 567                                                                 "\"%s\" unknown\n",
 568                                                                 fname, lineno, SLAPD_GROUP_CLASS );
 569                                                         acl_usage();
 570                                                 }
 571                                         }
 572
 573                                         if( is_object_subclass( slap_schema.si_oc_referral,
 574                                                 b->a_group_oc ))
 575                                         {
 576                                                 fprintf( stderr,
 577                                                         "%s: line %d: group objectclass \"%s\" "
 578                                                         "is subclass of referral\n",
 579                                                         fname, lineno, value );
 580                                                 acl_usage();
 581                                         }
 582
 583                                         if( is_object_subclass( slap_schema.si_oc_alias,
 584                                                 b->a_group_oc ))
 585                                         {
 586                                                 fprintf( stderr,
 587                                                         "%s: line %d: group objectclass \"%s\" "
 588                                                         "is subclass of alias\n",
 589                                                         fname, lineno, value );
 590                                                 acl_usage();
 591                                         }
 592
 593                                         if (name && *name) {
 594                                                 rc = slap_str2ad( name, &b->a_group_at, &text );
 595
 596                                                 if( rc != LDAP_SUCCESS ) {
 597                                                         fprintf( stderr,
 598                                                                 "%s: line %d: group \"%s\": %s\n",
 599                                                                 fname, lineno, right, text );
 600                                                         acl_usage();
 601                                                 }
 602                                                 *--name = '/';
 603                                         } else {
 604                                                 rc = slap_str2ad( SLAPD_GROUP_ATTR, &b->a_group_at, &text );
 605
 606                                                 if( rc != LDAP_SUCCESS ) {
 607                                                         fprintf( stderr,
 608                                                                 "%s: line %d: group \"%s\": %s\n",
 609                                                                 fname, lineno, SLAPD_GROUP_ATTR, text );
 610                                                         acl_usage();
 611                                                 }
 612                                         }
 613
 614                                         if( !is_at_syntax( b->a_group_at->ad_type,
 615                                                 SLAPD_DN_SYNTAX ) &&
 616                                             !is_at_syntax( b->a_group_at->ad_type,
 617                                                 SLAPD_NAMEUID_SYNTAX ) )
 618                                         {
 619                                                 fprintf( stderr,
 620                                                         "%s: line %d: group \"%s\": inappropriate syntax: %s\n",
 621                                                         fname, lineno, right,
 622                                                         b->a_group_at->ad_type->sat_syntax_oid );
 623                                                 acl_usage();
 624                                         }
 625
 626
 627                                         {
 628                                                 int rc;
 629                                                 struct berval vals[2];
 630
 631                                                 vals[0].bv_val = b->a_group_oc->soc_oid;
 632                                                 vals[0].bv_len = strlen(vals[0].bv_val);
 633                                                 vals[1].bv_val = NULL;
 634
 635
 636                                                 rc = oc_check_allowed( b->a_group_at->ad_type,
 637                                                         vals, NULL );
 638
 639                                                 if( rc != 0 ) {
 640                                                         fprintf( stderr, "%s: line %d: "
 641                                                                 "group: \"%s\" not allowed by \"%s\"\n",
 642                                                                 fname, lineno,
 643                                                                 b->a_group_at->ad_cname.bv_val,
 644                                                                 b->a_group_oc->soc_oid );
 645                                                         acl_usage();
 646                                                 }
 647                                         }
 648                                         continue;
 649                                 }
 650
 651                                 if ( strcasecmp( left, "peername" ) == 0 ) {
 652                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 653                                                 fprintf( stderr, "%s: line %d: "
 654                                                         "inappropriate style \"%s\" in by clause\n",
 655                                                     fname, lineno, style );
 656                                                 acl_usage();
 657                                         }
 658
 659                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 660                                                 fprintf( stderr, "%s: line %d: "
 661                                                         "missing \"=\" in (or value after) \"%s\" "
 662                                                         "in by clause\n",
 663                                                         fname, lineno, left );
 664                                                 acl_usage();
 665                                         }
 666
 667                                         if( b->a_peername_pat.bv_len ) {
 668                                                 fprintf( stderr, "%s: line %d: "
 669                                                         "peername pattern already specified.\n",
 670                                                         fname, lineno );
 671                                                 acl_usage();
 672                                         }
 673
 674                                         b->a_peername_style = sty;
 675                                         if (sty == ACL_STYLE_REGEX) {
 676                                                 acl_regex_normalized_dn( right, &bv );
 677                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 678                                                         regtest(fname, lineno, bv.bv_val);
 679                                                 }
 680                                                 b->a_peername_pat = bv;
 681                                         } else {
 682                                                 ber_str2bv( right, 0, 1, &b->a_peername_pat );
 683                                         }
 684                                         continue;
 685                                 }
 686
 687                                 if ( strcasecmp( left, "sockname" ) == 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_sockname_pat.bv_len ) {
 704                                                 fprintf( stderr, "%s: line %d: "
 705                                                         "sockname pattern already specified.\n",
 706                                                         fname, lineno );
 707                                                 acl_usage();
 708                                         }
 709
 710                                         b->a_sockname_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_sockname_pat = bv;
 717                                         } else {
 718                                                 ber_str2bv( right, 0, 1, &b->a_sockname_pat );
 719                                         }
 720                                         continue;
 721                                 }
 722
 723                                 if ( strcasecmp( left, "domain" ) == 0 ) {
 724                                         switch ( sty ) {
 725                                         case ACL_STYLE_REGEX:
 726                                         case ACL_STYLE_BASE:
 727                                         case ACL_STYLE_SUBTREE:
 728                                                 break;
 729
 730                                         default:
 731                                                 fprintf( stderr,
 732                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 733                                                     fname, lineno, style );
 734                                                 acl_usage();
 735                                         }
 736
 737                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 738                                                 fprintf( stderr,
 739                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 740                                                         fname, lineno, left );
 741                                                 acl_usage();
 742                                         }
 743
 744                                         if( b->a_domain_pat.bv_len ) {
 745                                                 fprintf( stderr,
 746                                                         "%s: line %d: domain pattern already specified.\n",
 747                                                         fname, lineno );
 748                                                 acl_usage();
 749                                         }
 750
 751                                         b->a_domain_style = sty;
 752                                         b->a_domain_expand = expand;
 753                                         if (sty == ACL_STYLE_REGEX) {
 754                                                 acl_regex_normalized_dn( right, &bv );
 755                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 756                                                         regtest(fname, lineno, bv.bv_val);
 757                                                 }
 758                                                 b->a_domain_pat = bv;
 759                                         } else {
 760                                                 ber_str2bv( right, 0, 1, &b->a_domain_pat );
 761                                         }
 762                                         continue;
 763                                 }
 764
 765                                 if ( strcasecmp( left, "sockurl" ) == 0 ) {
 766                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 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_sockurl_pat.bv_len ) {
 781                                                 fprintf( stderr,
 782                                                         "%s: line %d: sockurl pattern already specified.\n",
 783                                                         fname, lineno );
 784                                                 acl_usage();
 785                                         }
 786
 787                                         b->a_sockurl_style = sty;
 788                                         if (sty == ACL_STYLE_REGEX) {
 789                                                 acl_regex_normalized_dn( right, &bv );
 790                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 791                                                         regtest(fname, lineno, bv.bv_val);
 792                                                 }
 793                                                 b->a_sockurl_pat = bv;
 794                                         } else {
 795                                                 ber_str2bv( right, 0, 1, &b->a_sockurl_pat );
 796                                         }
 797                                         continue;
 798                                 }
 799
 800                                 if ( strcasecmp( left, "set" ) == 0 ) {
 801                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 802                                                 fprintf( stderr,
 803                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 804                                                     fname, lineno, style );
 805                                                 acl_usage();
 806                                         }
 807
 808                                         if( b->a_set_pat.bv_len != 0 ) {
 809                                                 fprintf( stderr,
 810                                                         "%s: line %d: set attribute already specified.\n",
 811                                                         fname, lineno );
 812                                                 acl_usage();
 813                                         }
 814
 815                                         if ( right == NULL || *right == '\0' ) {
 816                                                 fprintf( stderr,
 817                                                         "%s: line %d: no set is defined\n",
 818                                                         fname, lineno );
 819                                                 acl_usage();
 820                                         }
 821
 822                                         b->a_set_style = sty;
 823                                         ber_str2bv( right, 0, 1, &b->a_set_pat );
 824
 825                                         continue;
 826                                 }
 827
 828 #ifdef SLAPD_ACI_ENABLED
 829                                 if ( strcasecmp( left, "aci" ) == 0 ) {
 830                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 831                                                 fprintf( stderr,
 832                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 833                                                     fname, lineno, style );
 834                                                 acl_usage();
 835                                         }
 836
 837                                         if( b->a_aci_at != NULL ) {
 838                                                 fprintf( stderr,
 839                                                         "%s: line %d: aci attribute already specified.\n",
 840                                                         fname, lineno );
 841                                                 acl_usage();
 842                                         }
 843
 844                                         if ( right != NULL && *right != '\0' ) {
 845                                                 rc = slap_str2ad( right, &b->a_aci_at, &text );
 846
 847                                                 if( rc != LDAP_SUCCESS ) {
 848                                                         fprintf( stderr,
 849                                                                 "%s: line %d: aci \"%s\": %s\n",
 850                                                                 fname, lineno, right, text );
 851                                                         acl_usage();
 852                                                 }
 853
 854                                         } else {
 855                                                 b->a_aci_at = slap_schema.si_ad_aci;
 856                                         }
 857
 858                                         if( !is_at_syntax( b->a_aci_at->ad_type,
 859                                                 SLAPD_ACI_SYNTAX) )
 860                                         {
 861                                                 fprintf( stderr,
 862                                                         "%s: line %d: aci \"%s\": inappropriate syntax: %s\n",
 863                                                         fname, lineno, right,
 864                                                         b->a_aci_at->ad_type->sat_syntax_oid );
 865                                                 acl_usage();
 866                                         }
 867
 868                                         continue;
 869                                 }
 870 #endif /* SLAPD_ACI_ENABLED */
 871
 872                                 if ( strcasecmp( left, "ssf" ) == 0 ) {
 873                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 874                                                 fprintf( stderr,
 875                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 876                                                     fname, lineno, style );
 877                                                 acl_usage();
 878                                         }
 879
 880                                         if( b->a_authz.sai_ssf ) {
 881                                                 fprintf( stderr,
 882                                                         "%s: line %d: ssf attribute already specified.\n",
 883                                                         fname, lineno );
 884                                                 acl_usage();
 885                                         }
 886
 887                                         if ( right == NULL || *right == '\0' ) {
 888                                                 fprintf( stderr,
 889                                                         "%s: line %d: no ssf is defined\n",
 890                                                         fname, lineno );
 891                                                 acl_usage();
 892                                         }
 893
 894                                         b->a_authz.sai_ssf = atoi( right );
 895
 896                                         if( !b->a_authz.sai_ssf ) {
 897                                                 fprintf( stderr,
 898                                                         "%s: line %d: invalid ssf value (%s)\n",
 899                                                         fname, lineno, right );
 900                                                 acl_usage();
 901                                         }
 902                                         continue;
 903                                 }
 904
 905                                 if ( strcasecmp( left, "transport_ssf" ) == 0 ) {
 906                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 907                                                 fprintf( stderr,
 908                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 909                                                     fname, lineno, style );
 910                                                 acl_usage();
 911                                         }
 912
 913                                         if( b->a_authz.sai_transport_ssf ) {
 914                                                 fprintf( stderr,
 915                                                         "%s: line %d: transport_ssf attribute already specified.\n",
 916                                                         fname, lineno );
 917                                                 acl_usage();
 918                                         }
 919
 920                                         if ( right == NULL || *right == '\0' ) {
 921                                                 fprintf( stderr,
 922                                                         "%s: line %d: no transport_ssf is defined\n",
 923                                                         fname, lineno );
 924                                                 acl_usage();
 925                                         }
 926
 927                                         b->a_authz.sai_transport_ssf = atoi( right );
 928
 929                                         if( !b->a_authz.sai_transport_ssf ) {
 930                                                 fprintf( stderr,
 931                                                         "%s: line %d: invalid transport_ssf value (%s)\n",
 932                                                         fname, lineno, right );
 933                                                 acl_usage();
 934                                         }
 935                                         continue;
 936                                 }
 937
 938                                 if ( strcasecmp( left, "tls_ssf" ) == 0 ) {
 939                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 940                                                 fprintf( stderr,
 941                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 942                                                     fname, lineno, style );
 943                                                 acl_usage();
 944                                         }
 945
 946                                         if( b->a_authz.sai_tls_ssf ) {
 947                                                 fprintf( stderr,
 948                                                         "%s: line %d: tls_ssf attribute already specified.\n",
 949                                                         fname, lineno );
 950                                                 acl_usage();
 951                                         }
 952
 953                                         if ( right == NULL || *right == '\0' ) {
 954                                                 fprintf( stderr,
 955                                                         "%s: line %d: no tls_ssf is defined\n",
 956                                                         fname, lineno );
 957                                                 acl_usage();
 958                                         }
 959
 960                                         b->a_authz.sai_tls_ssf = atoi( right );
 961
 962                                         if( !b->a_authz.sai_tls_ssf ) {
 963                                                 fprintf( stderr,
 964                                                         "%s: line %d: invalid tls_ssf value (%s)\n",
 965                                                         fname, lineno, right );
 966                                                 acl_usage();
 967                                         }
 968                                         continue;
 969                                 }
 970
 971                                 if ( strcasecmp( left, "sasl_ssf" ) == 0 ) {
 972                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 973                                                 fprintf( stderr,
 974                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 975                                                     fname, lineno, style );
 976                                                 acl_usage();
 977                                         }
 978
 979                                         if( b->a_authz.sai_sasl_ssf ) {
 980                                                 fprintf( stderr,
 981                                                         "%s: line %d: sasl_ssf attribute already specified.\n",
 982                                                         fname, lineno );
 983                                                 acl_usage();
 984                                         }
 985
 986                                         if ( right == NULL || *right == '\0' ) {
 987                                                 fprintf( stderr,
 988                                                         "%s: line %d: no sasl_ssf is defined\n",
 989                                                         fname, lineno );
 990                                                 acl_usage();
 991                                         }
 992
 993                                         b->a_authz.sai_sasl_ssf = atoi( right );
 994
 995                                         if( !b->a_authz.sai_sasl_ssf ) {
 996                                                 fprintf( stderr,
 997                                                         "%s: line %d: invalid sasl_ssf value (%s)\n",
 998                                                         fname, lineno, right );
 999                                                 acl_usage();
1000                                         }
1001                                         continue;
1002                                 }
1003
1004                                 if( right != NULL ) {
1005                                         /* unsplit */
1006                                         right[-1] = '=';
1007                                 }
1008                                 break;
1009                         }
1010
1011                         if( i == argc || ( strcasecmp( left, "stop" ) == 0 )) {
1012                                 /* out of arguments or plain stop */
1013
1014                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
1015                                 b->a_type = ACL_STOP;
1016
1017                                 access_append( &a->acl_access, b );
1018                                 continue;
1019                         }
1020
1021                         if( strcasecmp( left, "continue" ) == 0 ) {
1022                                 /* plain continue */
1023
1024                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
1025                                 b->a_type = ACL_CONTINUE;
1026
1027                                 access_append( &a->acl_access, b );
1028                                 continue;
1029                         }
1030
1031                         if( strcasecmp( left, "break" ) == 0 ) {
1032                                 /* plain continue */
1033
1034                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
1035                                 b->a_type = ACL_BREAK;
1036
1037                                 access_append( &a->acl_access, b );
1038                                 continue;
1039                         }
1040
1041                         if ( strcasecmp( left, "by" ) == 0 ) {
1042                                 /* we've gone too far */
1043                                 --i;
1044                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
1045                                 b->a_type = ACL_STOP;
1046
1047                                 access_append( &a->acl_access, b );
1048                                 continue;
1049                         }
1050
1051                         /* get <access> */
1052                         if( strncasecmp( left, "self", 4 ) == 0 ) {
1053                                 b->a_dn_self = 1;
1054                                 ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( &left[4] ) );
1055
1056                         } else {
1057                                 ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( left ) );
1058                         }
1059
1060                         if( ACL_IS_INVALID( b->a_access_mask ) ) {
1061                                 fprintf( stderr,
1062                                         "%s: line %d: expecting <access> got \"%s\"\n",
1063                                         fname, lineno, left );
1064                                 acl_usage();
1065                         }
1066
1067                         b->a_type = ACL_STOP;
1068
1069                         if( ++i == argc ) {
1070                                 /* out of arguments or plain stop */
1071                                 access_append( &a->acl_access, b );
1072                                 continue;
1073                         }
1074
1075                         if( strcasecmp( argv[i], "continue" ) == 0 ) {
1076                                 /* plain continue */
1077                                 b->a_type = ACL_CONTINUE;
1078
1079                         } else if( strcasecmp( argv[i], "break" ) == 0 ) {
1080                                 /* plain continue */
1081                                 b->a_type = ACL_BREAK;
1082
1083                         } else if ( strcasecmp( argv[i], "stop" ) != 0 ) {
1084                                 /* gone to far */
1085                                 i--;
1086                         }
1087
1088                         access_append( &a->acl_access, b );
1089
1090                 } else {
1091                         fprintf( stderr,
1092                     "%s: line %d: expecting \"to\" or \"by\" got \"%s\"\n",
1093                             fname, lineno, argv[i] );
1094                         acl_usage();
1095                 }
1096         }
1097
1098         /* if we have no real access clause, complain and do nothing */
1099         if ( a == NULL ) {
1100                         fprintf( stderr,
1101                                 "%s: line %d: warning: no access clause(s) specified in access line\n",
1102                             fname, lineno );
1103
1104         } else {
1105 #ifdef LDAP_DEBUG
1106                 if (ldap_debug & LDAP_DEBUG_ACL)
1107                         print_acl(be, a);
1108 #endif
1109
1110                 if ( a->acl_access == NULL ) {
1111                         fprintf( stderr,
1112                         "%s: line %d: warning: no by clause(s) specified in access line\n",
1113                             fname, lineno );
1114                 }
1115
1116                 if ( be != NULL ) {
1117                         acl_append( &be->be_acl, a );
1118                 } else {
1119                         acl_append( &global_acl, a );
1120                 }
1121         }
1122 }
1123
1124 char *
1125 accessmask2str( slap_mask_t mask, char *buf )
1126 {
1127         int none=1;
1128         char *ptr = buf;
1129
1130         assert( buf != NULL );
1131
1132         if ( ACL_IS_INVALID( mask ) ) {
1133                 return "invalid";
1134         }
1135
1136         buf[0] = '\0';
1137
1138         if ( ACL_IS_LEVEL( mask ) ) {
1139                 if ( ACL_LVL_IS_NONE(mask) ) {
1140                         ptr = lutil_strcopy( ptr, "none" );
1141
1142                 } else if ( ACL_LVL_IS_AUTH(mask) ) {
1143                         ptr = lutil_strcopy( ptr, "auth" );
1144
1145                 } else if ( ACL_LVL_IS_COMPARE(mask) ) {
1146                         ptr = lutil_strcopy( ptr, "compare" );
1147
1148                 } else if ( ACL_LVL_IS_SEARCH(mask) ) {
1149                         ptr = lutil_strcopy( ptr, "search" );
1150
1151                 } else if ( ACL_LVL_IS_READ(mask) ) {
1152                         ptr = lutil_strcopy( ptr, "read" );
1153
1154                 } else if ( ACL_LVL_IS_WRITE(mask) ) {
1155                         ptr = lutil_strcopy( ptr, "write" );
1156                 } else {
1157                         ptr = lutil_strcopy( ptr, "unknown" );
1158                 }
1159
1160                 *ptr++ = '(';
1161         }
1162
1163         if( ACL_IS_ADDITIVE( mask ) ) {
1164                 *ptr++ = '+';
1165
1166         } else if( ACL_IS_SUBTRACTIVE( mask ) ) {
1167                 *ptr++ = '-';
1168
1169         } else {
1170                 *ptr++ = '=';
1171         }
1172
1173         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_WRITE) ) {
1174                 none = 0;
1175                 *ptr++ = 'w';
1176         }
1177
1178         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_READ) ) {
1179                 none = 0;
1180                 *ptr++ = 'r';
1181         }
1182
1183         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_SEARCH) ) {
1184                 none = 0;
1185                 *ptr++ = 's';
1186         }
1187
1188         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_COMPARE) ) {
1189                 none = 0;
1190                 *ptr++ = 'c';
1191         }
1192
1193         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_AUTH) ) {
1194                 none = 0;
1195                 *ptr++ = 'x';
1196         }
1197
1198         if ( none && ACL_PRIV_ISSET(mask, ACL_PRIV_NONE) ) {
1199                 none = 0;
1200                 *ptr++ = 'n';
1201         }
1202
1203         if ( none ) {
1204                 *ptr++ = '0';
1205         }
1206
1207         if ( ACL_IS_LEVEL( mask ) ) {
1208                 *ptr++ = ')';
1209         }
1210
1211         *ptr = '\0';
1212
1213         return buf;
1214 }
1215
1216 slap_mask_t
1217 str2accessmask( const char *str )
1218 {
1219         slap_mask_t     mask;
1220
1221         if( !ASCII_ALPHA(str[0]) ) {
1222                 int i;
1223
1224                 if ( str[0] == '=' ) {
1225                         ACL_INIT(mask);
1226
1227                 } else if( str[0] == '+' ) {
1228                         ACL_PRIV_ASSIGN(mask, ACL_PRIV_ADDITIVE);
1229
1230                 } else if( str[0] == '-' ) {
1231                         ACL_PRIV_ASSIGN(mask, ACL_PRIV_SUBSTRACTIVE);
1232
1233                 } else {
1234                         ACL_INVALIDATE(mask);
1235                         return mask;
1236                 }
1237
1238                 for( i=1; str[i] != '\0'; i++ ) {
1239                         if( TOLOWER((unsigned char) str[i]) == 'w' ) {
1240                                 ACL_PRIV_SET(mask, ACL_PRIV_WRITE);
1241
1242                         } else if( TOLOWER((unsigned char) str[i]) == 'r' ) {
1243                                 ACL_PRIV_SET(mask, ACL_PRIV_READ);
1244
1245                         } else if( TOLOWER((unsigned char) str[i]) == 's' ) {
1246                                 ACL_PRIV_SET(mask, ACL_PRIV_SEARCH);
1247
1248                         } else if( TOLOWER((unsigned char) str[i]) == 'c' ) {
1249                                 ACL_PRIV_SET(mask, ACL_PRIV_COMPARE);
1250
1251                         } else if( TOLOWER((unsigned char) str[i]) == 'x' ) {
1252                                 ACL_PRIV_SET(mask, ACL_PRIV_AUTH);
1253
1254                         } else if( str[i] != '0' ) {
1255                                 ACL_INVALIDATE(mask);
1256                                 return mask;
1257                         }
1258                 }
1259
1260                 return mask;
1261         }
1262
1263         if ( strcasecmp( str, "none" ) == 0 ) {
1264                 ACL_LVL_ASSIGN_NONE(mask);
1265
1266         } else if ( strcasecmp( str, "auth" ) == 0 ) {
1267                 ACL_LVL_ASSIGN_AUTH(mask);
1268
1269         } else if ( strcasecmp( str, "compare" ) == 0 ) {
1270                 ACL_LVL_ASSIGN_COMPARE(mask);
1271
1272         } else if ( strcasecmp( str, "search" ) == 0 ) {
1273                 ACL_LVL_ASSIGN_SEARCH(mask);
1274
1275         } else if ( strcasecmp( str, "read" ) == 0 ) {
1276                 ACL_LVL_ASSIGN_READ(mask);
1277
1278         } else if ( strcasecmp( str, "write" ) == 0 ) {
1279                 ACL_LVL_ASSIGN_WRITE(mask);
1280
1281         } else {
1282                 ACL_INVALIDATE( mask );
1283         }
1284
1285         return mask;
1286 }
1287
1288 static void
1289 acl_usage( void )
1290 {
1291         fprintf( stderr, "%s%s\n",
1292                 "<access clause> ::= access to <what> "
1293                                 "[ by <who> <access> [ <control> ] ]+ \n"
1294                 "<what> ::= * | [dn[.<dnstyle>]=<DN>] [filter=<filter>] [attrs=<attrlist>]\n"
1295                 "<attrlist> ::= <attr> | <attr> , <attrlist>\n"
1296                 "<attr> ::= <attrname> | entry | children\n"
1297                 "<who> ::= [ * | anonymous | users | self | dn[.<dnstyle>]=<DN> ]\n"
1298                         "\t[dnattr=<attrname>]\n"
1299                         "\t[group[/<objectclass>[/<attrname>]][.<style>]=<group>]\n"
1300                         "\t[peername[.<style>]=<peer>] [sockname[.<style>]=<name>]\n",
1301                         "\t[domain[.<style>]=<domain>] [sockurl[.<style>]=<url>]\n"
1302 #ifdef SLAPD_ACI_ENABLED
1303                         "\t[aci=<attrname>]\n"
1304 #endif
1305                         "\t[ssf=<n>] [transport_ssf=<n>] [tls_ssf=<n>] [sasl_ssf=<n>]\n"
1306                 "<dnstyle> ::= base | exact | one | subtree | children | regex\n"
1307                 "<style> ::= regex | base | exact\n"
1308                 "<access> ::= [self]{<level>|<priv>}\n"
1309                 "<level> ::= none | auth | compare | search | read | write\n"
1310                 "<priv> ::= {=|+|-}{w|r|s|c|x}+\n"
1311                 "<control> ::= [ stop | continue | break ]\n"
1312         );
1313         exit( EXIT_FAILURE );
1314 }
1315
1316 /*
1317  * Set pattern to a "normalized" DN from src.
1318  * At present it simply eats the (optional) space after
1319  * a RDN separator (,)
1320  * Eventually will evolve in a more complete normalization
1321  */
1322 static void
1323 acl_regex_normalized_dn(
1324         const char *src,
1325         struct berval *pattern
1326 )
1327 {
1328         char *str, *p;
1329         ber_len_t len;
1330
1331         str = ch_strdup( src );
1332         len = strlen( src );
1333
1334         for ( p = str; p && p[ 0 ]; p++ ) {
1335                 /* escape */
1336                 if ( p[ 0 ] == '\\' && p[ 1 ] ) {
1337                         /*
1338                          * if escaping a hex pair we should
1339                          * increment p twice; however, in that
1340                          * case the second hex number does
1341                          * no harm
1342                          */
1343                         p++;
1344                 }
1345
1346                 if ( p[ 0 ] == ',' ) {
1347                         if ( p[ 1 ] == ' ' ) {
1348                                 char *q;
1349
1350                                 /*
1351                                  * too much space should be
1352                                  * an error if we are pedantic
1353                                  */
1354                                 for ( q = &p[ 2 ]; q[ 0 ] == ' '; q++ ) {
1355                                         /* DO NOTHING */ ;
1356                                 }
1357                                 AC_MEMCPY( p+1, q, len-(q-str)+1);
1358                         }
1359                 }
1360         }
1361         pattern->bv_val = str;
1362         pattern->bv_len = p-str;
1363
1364         return;
1365 }
1366
1367 static void
1368 split(
1369     char        *line,
1370     int         splitchar,
1371     char        **left,
1372     char        **right
1373 )
1374 {
1375         *left = line;
1376         if ( (*right = strchr( line, splitchar )) != NULL ) {
1377                 *((*right)++) = '\0';
1378         }
1379 }
1380
1381 static void
1382 access_append( Access **l, Access *a )
1383 {
1384         for ( ; *l != NULL; l = &(*l)->a_next )
1385                 ;       /* NULL */
1386
1387         *l = a;
1388 }
1389
1390 void
1391 acl_append( AccessControl **l, AccessControl *a )
1392 {
1393         for ( ; *l != NULL; l = &(*l)->acl_next )
1394                 ;       /* NULL */
1395
1396         *l = a;
1397 }
1398
1399 static void
1400 access_free( Access *a )
1401 {
1402         if ( a->a_dn_pat.bv_val )
1403                 free ( a->a_dn_pat.bv_val );
1404         if ( a->a_peername_pat.bv_val )
1405                 free ( a->a_peername_pat.bv_val );
1406         if ( a->a_sockname_pat.bv_val )
1407                 free ( a->a_sockname_pat.bv_val );
1408         if ( a->a_domain_pat.bv_val )
1409                 free ( a->a_domain_pat.bv_val );
1410         if ( a->a_sockurl_pat.bv_val )
1411                 free ( a->a_sockurl_pat.bv_val );
1412         if ( a->a_set_pat.bv_len )
1413                 free ( a->a_set_pat.bv_val );
1414         if ( a->a_group_pat.bv_len )
1415                 free ( a->a_group_pat.bv_val );
1416         free( a );
1417 }
1418
1419 void
1420 acl_free( AccessControl *a )
1421 {
1422         Access *n;
1423         AttributeName *an;
1424
1425         if ( a->acl_filter )
1426                 filter_free( a->acl_filter );
1427         if ( a->acl_dn_pat.bv_len )
1428                 free ( a->acl_dn_pat.bv_val );
1429         if ( a->acl_attrs ) {
1430                 for ( an = a->acl_attrs; an->an_name.bv_val; an++ ) {
1431                         free( an->an_name.bv_val );
1432                 }
1433                 free( a->acl_attrs );
1434         }
1435         for (; a->acl_access; a->acl_access = n) {
1436                 n = a->acl_access->a_next;
1437                 access_free( a->acl_access );
1438         }
1439         free( a );
1440 }
1441
1442 /* Because backend_startup uses acl_append to tack on the global_acl to
1443  * the end of each backend's acl, we cannot just take one argument and
1444  * merrily free our way to the end of the list. backend_destroy calls us
1445  * with the be_acl in arg1, and global_acl in arg2 to give us a stopping
1446  * point. config_destroy calls us with global_acl in arg1 and NULL in
1447  * arg2, so we then proceed to polish off the global_acl.
1448  */
1449 void
1450 acl_destroy( AccessControl *a, AccessControl *end )
1451 {
1452         AccessControl *n;
1453
1454         for (; a && a!= end; a=n) {
1455                 n = a->acl_next;
1456                 acl_free( a );
1457         }
1458 }
1459
1460 char *
1461 access2str( slap_access_t access )
1462 {
1463         if ( access == ACL_NONE ) {
1464                 return "none";
1465
1466         } else if ( access == ACL_AUTH ) {
1467                 return "auth";
1468
1469         } else if ( access == ACL_COMPARE ) {
1470                 return "compare";
1471
1472         } else if ( access == ACL_SEARCH ) {
1473                 return "search";
1474
1475         } else if ( access == ACL_READ ) {
1476                 return "read";
1477
1478         } else if ( access == ACL_WRITE ) {
1479                 return "write";
1480         }
1481
1482         return "unknown";
1483 }
1484
1485 slap_access_t
1486 str2access( const char *str )
1487 {
1488         if ( strcasecmp( str, "none" ) == 0 ) {
1489                 return ACL_NONE;
1490
1491         } else if ( strcasecmp( str, "auth" ) == 0 ) {
1492                 return ACL_AUTH;
1493
1494         } else if ( strcasecmp( str, "compare" ) == 0 ) {
1495                 return ACL_COMPARE;
1496
1497         } else if ( strcasecmp( str, "search" ) == 0 ) {
1498                 return ACL_SEARCH;
1499
1500         } else if ( strcasecmp( str, "read" ) == 0 ) {
1501                 return ACL_READ;
1502
1503         } else if ( strcasecmp( str, "write" ) == 0 ) {
1504                 return ACL_WRITE;
1505         }
1506
1507         return( ACL_INVALID_ACCESS );
1508 }
1509
1510 #ifdef LDAP_DEBUG
1511
1512 static char *style_strings[5] = { "regex",
1513         "base", "one", "subtree", "children" };
1514
1515 static void
1516 print_access( Access *b )
1517 {
1518         char maskbuf[ACCESSMASK_MAXLEN];
1519
1520         fprintf( stderr, "\tby" );
1521
1522         if ( b->a_dn_pat.bv_len != 0 ) {
1523                 if( strcmp(b->a_dn_pat.bv_val, "*") == 0
1524                         || strcmp(b->a_dn_pat.bv_val, "users") == 0
1525                         || strcmp(b->a_dn_pat.bv_val, "anonymous") == 0
1526                         || strcmp(b->a_dn_pat.bv_val, "self") == 0 )
1527                 {
1528                         fprintf( stderr, " %s", b->a_dn_pat.bv_val );
1529
1530                 } else {
1531                         fprintf( stderr, " dn.%s=%s",
1532                                 style_strings[b->a_dn_style], b->a_dn_pat.bv_val );
1533                 }
1534         }
1535
1536         if ( b->a_dn_at != NULL ) {
1537                 fprintf( stderr, " dnattr=%s", b->a_dn_at->ad_cname.bv_val );
1538         }
1539
1540         if ( b->a_group_pat.bv_len ) {
1541                 fprintf( stderr, " group=%s", b->a_group_pat.bv_val );
1542
1543                 if ( b->a_group_oc ) {
1544                         fprintf( stderr, " objectClass: %s",
1545                                 b->a_group_oc->soc_oclass.oc_oid );
1546
1547                         if ( b->a_group_at ) {
1548                                 fprintf( stderr, " attributeType: %s",
1549                                         b->a_group_at->ad_cname.bv_val );
1550                         }
1551                 }
1552     }
1553
1554         if ( b->a_peername_pat.bv_len != 0 ) {
1555                 fprintf( stderr, " peername=%s", b->a_peername_pat.bv_val );
1556         }
1557
1558         if ( b->a_sockname_pat.bv_len != 0 ) {
1559                 fprintf( stderr, " sockname=%s", b->a_sockname_pat.bv_val );
1560         }
1561
1562         if ( b->a_domain_pat.bv_len != 0 ) {
1563                 fprintf( stderr, " domain=%s", b->a_domain_pat.bv_val );
1564         }
1565
1566         if ( b->a_sockurl_pat.bv_len != 0 ) {
1567                 fprintf( stderr, " sockurl=%s", b->a_sockurl_pat.bv_val );
1568         }
1569
1570 #ifdef SLAPD_ACI_ENABLED
1571         if ( b->a_aci_at != NULL ) {
1572                 fprintf( stderr, " aci=%s", b->a_aci_at->ad_cname.bv_val );
1573         }
1574 #endif
1575
1576         /* Security Strength Factors */
1577         if ( b->a_authz.sai_ssf ) {
1578                 fprintf( stderr, " ssf=%u",
1579                         b->a_authz.sai_ssf );
1580         }
1581         if ( b->a_authz.sai_transport_ssf ) {
1582                 fprintf( stderr, " transport_ssf=%u",
1583                         b->a_authz.sai_transport_ssf );
1584         }
1585         if ( b->a_authz.sai_tls_ssf ) {
1586                 fprintf( stderr, " tls_ssf=%u",
1587                         b->a_authz.sai_tls_ssf );
1588         }
1589         if ( b->a_authz.sai_sasl_ssf ) {
1590                 fprintf( stderr, " sasl_ssf=%u",
1591                         b->a_authz.sai_sasl_ssf );
1592         }
1593
1594         fprintf( stderr, " %s%s",
1595                 b->a_dn_self ? "self" : "",
1596                 accessmask2str( b->a_access_mask, maskbuf ) );
1597
1598         if( b->a_type == ACL_BREAK ) {
1599                 fprintf( stderr, " break" );
1600
1601         } else if( b->a_type == ACL_CONTINUE ) {
1602                 fprintf( stderr, " continue" );
1603
1604         } else if( b->a_type != ACL_STOP ) {
1605                 fprintf( stderr, " unknown-control" );
1606         }
1607
1608         fprintf( stderr, "\n" );
1609 }
1610
1611
1612 static void
1613 print_acl( Backend *be, AccessControl *a )
1614 {
1615         int             to = 0;
1616         Access  *b;
1617
1618         fprintf( stderr, "%s ACL: access to",
1619                 be == NULL ? "Global" : "Backend" );
1620
1621         if ( a->acl_dn_pat.bv_len != 0 ) {
1622                 to++;
1623                 fprintf( stderr, " dn.%s=%s\n",
1624                         style_strings[a->acl_dn_style], a->acl_dn_pat.bv_val );
1625         }
1626
1627         if ( a->acl_filter != NULL ) {
1628                 struct berval bv = { 0, NULL };
1629                 to++;
1630                 filter2bv( a->acl_filter, &bv );
1631                 fprintf( stderr, " filter=%s\n", bv.bv_val );
1632                 ch_free( bv.bv_val );
1633         }
1634
1635         if ( a->acl_attrs != NULL ) {
1636                 int     first = 1;
1637                 AttributeName *an;
1638                 to++;
1639
1640                 fprintf( stderr, " attrs=" );
1641                 for ( an = a->acl_attrs; an && an->an_name.bv_val; an++ ) {
1642                         if ( ! first ) {
1643                                 fprintf( stderr, "," );
1644                         }
1645                         fputs( an->an_name.bv_val, stderr );
1646                         first = 0;
1647                 }
1648                 fprintf(  stderr, "\n" );
1649         }
1650
1651         if( !to ) {
1652                 fprintf( stderr, " *\n" );
1653         }
1654
1655         for ( b = a->acl_access; b != NULL; b = b->a_next ) {
1656                 print_access( b );
1657         }
1658
1659         fprintf( stderr, "\n" );
1660 }
1661
1662 #endif /* LDAP_DEBUG */