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

   1 /* aclparse.c - routines to parse and check acl's */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 1998-2003 The OpenLDAP Foundation.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in the file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16 /* Portions Copyright (c) 1995 Regents of the University of Michigan.
  17  * All rights reserved.
  18  *
  19  * Redistribution and use in source and binary forms are permitted
  20  * provided that this notice is preserved and that due credit is given
  21  * to the University of Michigan at Ann Arbor. The name of the University
  22  * may not be used to endorse or promote products derived from this
  23  * software without specific prior written permission. This software
  24  * is provided ``as is'' without express or implied warranty.
  25  */
  26
  27 #include "portable.h"
  28
  29 #include <stdio.h>
  30
  31 #include <ac/ctype.h>
  32 #include <ac/regex.h>
  33 #include <ac/socket.h>
  34 #include <ac/string.h>
  35 #include <ac/unistd.h>
  36
  37 #include "slap.h"
  38 #include "lber_pvt.h"
  39 #include "lutil.h"
  40
  41 static void             split(char *line, int splitchar, char **left, char **right);
  42 static void             access_append(Access **l, Access *a);
  43 static void             acl_usage(void) LDAP_GCCATTR((noreturn));
  44
  45 static void             acl_regex_normalized_dn(const char *src, struct berval *pat);
  46
  47 #ifdef LDAP_DEBUG
  48 static void             print_acl(Backend *be, AccessControl *a);
  49 static void             print_access(Access *b);
  50 #endif
  51
  52 static void
  53 regtest(const char *fname, int lineno, char *pat) {
  54         int e;
  55         regex_t re;
  56
  57         char buf[512];
  58         unsigned size;
  59
  60         char *sp;
  61         char *dp;
  62         int  flag;
  63
  64         sp = pat;
  65         dp = buf;
  66         size = 0;
  67         buf[0] = '\0';
  68
  69         for (size = 0, flag = 0; (size < sizeof(buf)) && *sp; sp++) {
  70                 if (flag) {
  71                         if (*sp == '$'|| (*sp >= '0' && *sp <= '9')) {
  72                                 *dp++ = *sp;
  73                                 size++;
  74                         }
  75                         flag = 0;
  76
  77                 } else {
  78                         if (*sp == '$') {
  79                                 flag = 1;
  80                         } else {
  81                                 *dp++ = *sp;
  82                                 size++;
  83                         }
  84                 }
  85         }
  86
  87         *dp = '\0';
  88         if ( size >= (sizeof(buf)-1) ) {
  89                 fprintf( stderr,
  90                         "%s: line %d: regular expression \"%s\" too large\n",
  91                         fname, lineno, pat );
  92                 acl_usage();
  93         }
  94
  95         if ((e = regcomp(&re, buf, REG_EXTENDED|REG_ICASE))) {
  96                 char error[512];
  97                 regerror(e, &re, error, sizeof(error));
  98                 fprintf( stderr,
  99                         "%s: line %d: regular expression \"%s\" bad because of %s\n",
 100                         fname, lineno, pat, error );
 101                 acl_usage();
 102         }
 103         regfree(&re);
 104 }
 105
 106 void
 107 parse_acl(
 108     Backend     *be,
 109     const char  *fname,
 110     int         lineno,
 111     int         argc,
 112     char        **argv
 113 )
 114 {
 115         int             i;
 116         char            *left, *right, *style;
 117         struct berval   bv;
 118         AccessControl   *a;
 119         Access  *b;
 120         int rc;
 121         const char *text;
 122
 123         a = NULL;
 124         for ( i = 1; i < argc; i++ ) {
 125                 /* to clause - select which entries are protected */
 126                 if ( strcasecmp( argv[i], "to" ) == 0 ) {
 127                         if ( a != NULL ) {
 128                                 fprintf( stderr, "%s: line %d: "
 129                                         "only one to clause allowed in access line\n",
 130                                     fname, lineno );
 131                                 acl_usage();
 132                         }
 133                         a = (AccessControl *) ch_calloc( 1, sizeof(AccessControl) );
 134                         for ( ++i; i < argc; i++ ) {
 135                                 if ( strcasecmp( argv[i], "by" ) == 0 ) {
 136                                         i--;
 137                                         break;
 138                                 }
 139
 140                                 if ( strcasecmp( argv[i], "*" ) == 0 ) {
 141                                         if( a->acl_dn_pat.bv_len ||
 142                                                 ( a->acl_dn_style != ACL_STYLE_REGEX ) )
 143                                         {
 144                                                 fprintf( stderr,
 145                                                         "%s: line %d: dn pattern"
 146                                                         " already specified in to clause.\n",
 147                                                         fname, lineno );
 148                                                 acl_usage();
 149                                         }
 150
 151                                         a->acl_dn_pat.bv_val = ch_strdup( "*" );
 152                                         a->acl_dn_pat.bv_len = 1;
 153                                         continue;
 154                                 }
 155
 156                                 split( argv[i], '=', &left, &right );
 157                                 split( left, '.', &left, &style );
 158
 159                                 if ( right == NULL ) {
 160                                         fprintf( stderr, "%s: line %d: "
 161                                                 "missing \"=\" in \"%s\" in to clause\n",
 162                                             fname, lineno, left );
 163                                         acl_usage();
 164                                 }
 165
 166                                 if ( strcasecmp( left, "dn" ) == 0 ) {
 167                                         if( a->acl_dn_pat.bv_len != 0 ||
 168                                                 ( a->acl_dn_style != ACL_STYLE_REGEX ) )
 169                                         {
 170                                                 fprintf( stderr,
 171                                                         "%s: line %d: dn pattern"
 172                                                         " already specified in to clause.\n",
 173                                                         fname, lineno );
 174                                                 acl_usage();
 175                                         }
 176
 177                                         if ( style == NULL || *style == '\0' ||
 178                                                 ( strcasecmp( style, "base" ) == 0 ) ||
 179                                                 ( strcasecmp( style, "exact" ) == 0 ))
 180                                         {
 181                                                 a->acl_dn_style = ACL_STYLE_BASE;
 182                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 183
 184                                         } else if ( strcasecmp( style, "one" ) == 0 ) {
 185                                                 a->acl_dn_style = ACL_STYLE_ONE;
 186                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 187
 188                                         } else if ( strcasecmp( style, "subtree" ) == 0
 189                                                 || strcasecmp( style, "sub" ) == 0 )
 190                                         {
 191                                                 if( *right == '\0' ) {
 192                                                         a->acl_dn_pat.bv_val = ch_strdup( "*" );
 193                                                         a->acl_dn_pat.bv_len = 1;
 194
 195                                                 } else {
 196                                                         a->acl_dn_style = ACL_STYLE_SUBTREE;
 197                                                         ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 198                                                 }
 199
 200                                         } else if ( strcasecmp( style, "children" ) == 0 ) {
 201                                                 a->acl_dn_style = ACL_STYLE_CHILDREN;
 202                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 203
 204                                         } else if ( strcasecmp( style, "regex" ) == 0 ) {
 205                                                 a->acl_dn_style = ACL_STYLE_REGEX;
 206
 207                                                 if ( *right == '\0' ) {
 208                                                         /* empty regex should match empty DN */
 209                                                         a->acl_dn_style = ACL_STYLE_BASE;
 210                                                         ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 211
 212                                                 } else if ( strcmp(right, "*") == 0
 213                                                         || strcmp(right, ".*") == 0
 214                                                         || strcmp(right, ".*$") == 0
 215                                                         || strcmp(right, "^.*") == 0
 216                                                         || strcmp(right, "^.*$") == 0
 217                                                         || strcmp(right, ".*$$") == 0
 218                                                         || strcmp(right, "^.*$$") == 0 )
 219                                                 {
 220                                                         a->acl_dn_pat.bv_val = ch_strdup( "*" );
 221                                                         a->acl_dn_pat.bv_len = sizeof("*")-1;
 222
 223                                                 } else {
 224                                                         acl_regex_normalized_dn( right, &a->acl_dn_pat );
 225                                                 }
 226
 227                                         } else {
 228                                                 fprintf( stderr, "%s: line %d: "
 229                                                         "unknown dn style \"%s\" in to clause\n",
 230                                                     fname, lineno, style );
 231                                                 acl_usage();
 232                                         }
 233
 234                                         continue;
 235                                 }
 236
 237                                 if ( strcasecmp( left, "filter" ) == 0 ) {
 238                                         if ( (a->acl_filter = str2filter( right )) == NULL ) {
 239                                                 fprintf( stderr,
 240                                 "%s: line %d: bad filter \"%s\" in to clause\n",
 241                                                     fname, lineno, right );
 242                                                 acl_usage();
 243                                         }
 244
 245                                 } else if ( strncasecmp( left, "attr", 4 ) == 0 ) {
 246                                         a->acl_attrs = str2anlist( a->acl_attrs,
 247                                                 right, "," );
 248                                         if ( a->acl_attrs == NULL ) {
 249                                                 fprintf( stderr,
 250                                 "%s: line %d: unknown attr \"%s\" in to clause\n",
 251                                                     fname, lineno, right );
 252                                                 acl_usage();
 253                                         }
 254
 255                                 } else if ( strncasecmp( left, "val", 3 ) == 0 ) {
 256                                         if ( a->acl_attrval.bv_len ) {
 257                                                 fprintf( stderr,
 258                                 "%s: line %d: attr val already specified in to clause.\n",
 259                                                         fname, lineno );
 260                                                 acl_usage();
 261                                         }
 262                                         if ( a->acl_attrs == NULL || a->acl_attrs[1].an_name.bv_val ) {
 263                                                 fprintf( stderr,
 264                                 "%s: line %d: attr val requires a single attribute.\n",
 265                                                         fname, lineno );
 266                                                 acl_usage();
 267                                         }
 268                                         ber_str2bv( right, 0, 1, &a->acl_attrval );
 269                                         if ( style && strcasecmp( style, "regex" ) == 0 ) {
 270                                                 int e = regcomp( &a->acl_attrval_re, a->acl_attrval.bv_val,
 271                                                         REG_EXTENDED | REG_ICASE | REG_NOSUB );
 272                                                 if ( e ) {
 273                                                         char buf[512];
 274                                                         regerror( e, &a->acl_attrval_re, buf, sizeof(buf) );
 275                                                         fprintf( stderr, "%s: line %d: "
 276                                                                 "regular expression \"%s\" bad because of %s\n",
 277                                                                 fname, lineno, right, buf );
 278                                                         acl_usage();
 279                                                 }
 280                                                 a->acl_attrval_style = ACL_STYLE_REGEX;
 281                                         } else {
 282                                                 /* FIXME: if the attribute has DN syntax,
 283                                                  * we might allow subtree and children styles as well */
 284                                                 if ( !strcasecmp( style, "exact" ) ) {
 285                                                         a->acl_attrval_style = ACL_STYLE_BASE;
 286
 287                                                 } else if ( a->acl_attrs[0].an_desc->ad_type->sat_syntax == slap_schema.si_syn_distinguishedName ) {
 288                                                         if ( !strcasecmp( style, "base" ) ) {
 289                                                                 a->acl_attrval_style = ACL_STYLE_BASE;
 290                                                         } else if ( !strcasecmp( style, "children" ) ) {
 291                                                                 a->acl_attrval_style = ACL_STYLE_CHILDREN;
 292                                                         } else if ( !strcasecmp( style, "onelevel" ) || !strcasecmp( style, "one" ) ) {
 293                                                                 a->acl_attrval_style = ACL_STYLE_ONE;
 294                                                         } else if ( !strcasecmp( style, "subtree" ) || !strcasecmp( style, "sub" ) ) {
 295                                                                 a->acl_attrval_style = ACL_STYLE_SUBTREE;
 296                                                         } else {
 297                                                                 fprintf( stderr,
 298                                                                         "%s: line %d: unknown val.<style>, got \"%s\" (ignored)\n",
 299                                                                             fname, lineno, style );
 300                                                                 a->acl_attrval_style = ACL_STYLE_BASE;
 301                                                         }
 302
 303                                                 } else {
 304                                                         fprintf( stderr,
 305                                                                 "%s: line %d: unknown val.<style>, got \"%s\" (ignored)\n",
 306                                                                     fname, lineno, style );
 307                                                         a->acl_attrval_style = ACL_STYLE_BASE;
 308                                                 }
 309                                         }
 310
 311                                 } else {
 312                                         fprintf( stderr,
 313                                                 "%s: line %d: expecting <what> got \"%s\"\n",
 314                                             fname, lineno, left );
 315                                         acl_usage();
 316                                 }
 317                         }
 318
 319                         if ( a->acl_dn_pat.bv_len != 0 &&
 320                                 strcmp(a->acl_dn_pat.bv_val, "*") == 0 )
 321                         {
 322                                 free( a->acl_dn_pat.bv_val );
 323                                 a->acl_dn_pat.bv_val = NULL;
 324                                 a->acl_dn_pat.bv_len = 0;
 325                         }
 326
 327                         if( a->acl_dn_pat.bv_len != 0 ||
 328                                 ( a->acl_dn_style != ACL_STYLE_REGEX ) )
 329                         {
 330                                 if ( a->acl_dn_style != ACL_STYLE_REGEX ) {
 331                                         struct berval bv;
 332                                         rc = dnNormalize( 0, NULL, NULL, &a->acl_dn_pat, &bv, NULL);
 333                                         if ( rc != LDAP_SUCCESS ) {
 334                                                 fprintf( stderr,
 335                                                         "%s: line %d: bad DN \"%s\" in to DN clause\n",
 336                                                         fname, lineno, a->acl_dn_pat.bv_val );
 337                                                 acl_usage();
 338                                         }
 339                                         free( a->acl_dn_pat.bv_val );
 340                                         a->acl_dn_pat = bv;
 341                                 } else {
 342                                         int e = regcomp( &a->acl_dn_re, a->acl_dn_pat.bv_val,
 343                                                 REG_EXTENDED | REG_ICASE );
 344                                         if ( e ) {
 345                                                 char buf[512];
 346                                                 regerror( e, &a->acl_dn_re, buf, sizeof(buf) );
 347                                                 fprintf( stderr, "%s: line %d: "
 348                                                         "regular expression \"%s\" bad because of %s\n",
 349                                                         fname, lineno, right, buf );
 350                                                 acl_usage();
 351                                         }
 352                                 }
 353                         }
 354
 355                 /* by clause - select who has what access to entries */
 356                 } else if ( strcasecmp( argv[i], "by" ) == 0 ) {
 357                         if ( a == NULL ) {
 358                                 fprintf( stderr, "%s: line %d: "
 359                                         "to clause required before by clause in access line\n",
 360                                     fname, lineno );
 361                                 acl_usage();
 362                         }
 363
 364                         /*
 365                          * by clause consists of <who> and <access>
 366                          */
 367
 368                         b = (Access *) ch_calloc( 1, sizeof(Access) );
 369
 370                         ACL_INVALIDATE( b->a_access_mask );
 371
 372                         if ( ++i == argc ) {
 373                                 fprintf( stderr,
 374                             "%s: line %d: premature eol: expecting <who>\n",
 375                                     fname, lineno );
 376                                 acl_usage();
 377                         }
 378
 379                         /* get <who> */
 380                         for ( ; i < argc; i++ ) {
 381                                 slap_style_t sty = ACL_STYLE_REGEX;
 382                                 char *style_modifier = NULL;
 383                                 int expand = 0;
 384
 385                                 split( argv[i], '=', &left, &right );
 386                                 split( left, '.', &left, &style );
 387                                 if ( style ) {
 388                                         split( style, ',', &style, &style_modifier);
 389                                 }
 390
 391                                 if ( style == NULL || *style == '\0' ||
 392                                         strcasecmp( style, "exact" ) == 0 ||
 393                                         strcasecmp( style, "base" ) == 0 )
 394                                 {
 395                                         sty = ACL_STYLE_BASE;
 396
 397                                 } else if ( strcasecmp( style, "one" ) == 0 ) {
 398                                         sty = ACL_STYLE_ONE;
 399
 400                                 } else if ( strcasecmp( style, "subtree" ) == 0 ||
 401                                         strcasecmp( style, "sub" ) == 0 )
 402                                 {
 403                                         sty = ACL_STYLE_SUBTREE;
 404
 405                                 } else if ( strcasecmp( style, "children" ) == 0 ) {
 406                                         sty = ACL_STYLE_CHILDREN;
 407
 408                                 } else if ( strcasecmp( style, "regex" ) == 0 ) {
 409                                         sty = ACL_STYLE_REGEX;
 410
 411                                 } else {
 412                                         fprintf( stderr,
 413                                                 "%s: line %d: unknown style \"%s\" in by clause\n",
 414                                             fname, lineno, style );
 415                                         acl_usage();
 416                                 }
 417
 418                                 if ( style_modifier &&
 419                                         strcasecmp( style_modifier, "expand" ) == 0 )
 420                                 {
 421                                         expand = 1;
 422                                 }
 423
 424                                 if ( strcasecmp( argv[i], "*" ) == 0 ) {
 425                                         bv.bv_val = ch_strdup( "*" );
 426                                         bv.bv_len = 1;
 427                                         sty = ACL_STYLE_REGEX;
 428
 429                                 } else if ( strcasecmp( argv[i], "anonymous" ) == 0 ) {
 430                                         ber_str2bv("anonymous", sizeof("anonymous")-1, 1, &bv);
 431                                         sty = ACL_STYLE_REGEX;
 432
 433                                 } else if ( strcasecmp( argv[i], "self" ) == 0 ) {
 434                                         ber_str2bv("self", sizeof("self")-1, 1, &bv);
 435                                         sty = ACL_STYLE_REGEX;
 436
 437                                 } else if ( strcasecmp( argv[i], "users" ) == 0 ) {
 438                                         ber_str2bv("users", sizeof("users")-1, 1, &bv);
 439                                         sty = ACL_STYLE_REGEX;
 440
 441                                 } else if ( strcasecmp( left, "dn" ) == 0 ) {
 442                                         if ( sty == ACL_STYLE_REGEX ) {
 443                                                 b->a_dn_style = ACL_STYLE_REGEX;
 444                                                 if( right == NULL ) {
 445                                                         /* no '=' */
 446                                                         ber_str2bv("users",
 447                                                                 sizeof("users")-1,
 448                                                                 1, &bv);
 449                                                 } else if (*right == '\0' ) {
 450                                                         /* dn="" */
 451                                                         ber_str2bv("anonymous",
 452                                                                 sizeof("anonymous")-1,
 453                                                                 1, &bv);
 454                                                 } else if ( strcmp( right, "*" ) == 0 ) {
 455                                                         /* dn=* */
 456                                                         /* any or users?  users for now */
 457                                                         ber_str2bv("users",
 458                                                                 sizeof("users")-1,
 459                                                                 1, &bv);
 460                                                 } else if ( strcmp( right, ".+" ) == 0
 461                                                         || strcmp( right, "^.+" ) == 0
 462                                                         || strcmp( right, ".+$" ) == 0
 463                                                         || strcmp( right, "^.+$" ) == 0
 464                                                         || strcmp( right, ".+$$" ) == 0
 465                                                         || strcmp( right, "^.+$$" ) == 0 )
 466                                                 {
 467                                                         ber_str2bv("users",
 468                                                                 sizeof("users")-1,
 469                                                                 1, &bv);
 470                                                 } else if ( strcmp( right, ".*" ) == 0
 471                                                         || strcmp( right, "^.*" ) == 0
 472                                                         || strcmp( right, ".*$" ) == 0
 473                                                         || strcmp( right, "^.*$" ) == 0
 474                                                         || strcmp( right, ".*$$" ) == 0
 475                                                         || strcmp( right, "^.*$$" ) == 0 )
 476                                                 {
 477                                                         ber_str2bv("*",
 478                                                                 sizeof("*")-1,
 479                                                                 1, &bv);
 480
 481                                                 } else {
 482                                                         acl_regex_normalized_dn( right, &bv );
 483                                                         if ( !ber_bvccmp( &bv, '*' ) ) {
 484                                                                 regtest(fname, lineno, bv.bv_val);
 485                                                         }
 486                                                 }
 487                                         } else if ( right == NULL || *right == '\0' ) {
 488                                                 fprintf( stderr, "%s: line %d: "
 489                                                         "missing \"=\" in (or value after) \"%s\" "
 490                                                         "in by clause\n",
 491                                                     fname, lineno, left );
 492                                                 acl_usage();
 493
 494                                         } else {
 495                                                 ber_str2bv( right, 0, 1, &bv );
 496                                         }
 497
 498                                 } else {
 499                                         bv.bv_val = NULL;
 500                                 }
 501
 502                                 if( bv.bv_val != NULL ) {
 503                                         if( b->a_dn_pat.bv_len != 0 ) {
 504                                                 fprintf( stderr,
 505                                                     "%s: line %d: dn pattern already specified.\n",
 506                                                     fname, lineno );
 507                                                 acl_usage();
 508                                         }
 509
 510                                         if ( sty != ACL_STYLE_REGEX && expand == 0 ) {
 511                                                 rc = dnNormalize(0, NULL, NULL,
 512                                                         &bv, &b->a_dn_pat, NULL);
 513                                                 if ( rc != LDAP_SUCCESS ) {
 514                                                         fprintf( stderr,
 515                                                                 "%s: line %d: bad DN \"%s\" in by DN clause\n",
 516                                                                 fname, lineno, bv.bv_val );
 517                                                         acl_usage();
 518                                                 }
 519                                                 free(bv.bv_val);
 520                                         } else {
 521                                                 b->a_dn_pat = bv;
 522                                         }
 523                                         b->a_dn_style = sty;
 524                                         b->a_dn_expand = expand;
 525                                         continue;
 526                                 }
 527
 528                                 if ( strcasecmp( left, "dnattr" ) == 0 ) {
 529                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 530                                                 fprintf( stderr,
 531                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 532                                                         fname, lineno, left );
 533                                                 acl_usage();
 534                                         }
 535
 536                                         if( b->a_dn_at != NULL ) {
 537                                                 fprintf( stderr,
 538                                                         "%s: line %d: dnattr already specified.\n",
 539                                                         fname, lineno );
 540                                                 acl_usage();
 541                                         }
 542
 543                                         rc = slap_str2ad( right, &b->a_dn_at, &text );
 544
 545                                         if( rc != LDAP_SUCCESS ) {
 546                                                 fprintf( stderr,
 547                                                         "%s: line %d: dnattr \"%s\": %s\n",
 548                                                         fname, lineno, right, text );
 549                                                 acl_usage();
 550                                         }
 551
 552
 553                                         if( !is_at_syntax( b->a_dn_at->ad_type,
 554                                                 SLAPD_DN_SYNTAX ) &&
 555                                                 !is_at_syntax( b->a_dn_at->ad_type,
 556                                                 SLAPD_NAMEUID_SYNTAX ))
 557                                         {
 558                                                 fprintf( stderr,
 559                                                         "%s: line %d: dnattr \"%s\": "
 560                                                         "inappropriate syntax: %s\n",
 561                                                         fname, lineno, right,
 562                                                         b->a_dn_at->ad_type->sat_syntax_oid );
 563                                                 acl_usage();
 564                                         }
 565
 566                                         if( b->a_dn_at->ad_type->sat_equality == NULL ) {
 567                                                 fprintf( stderr,
 568                                                         "%s: line %d: dnattr \"%s\": "
 569                                                         "inappropriate matching (no EQUALITY)\n",
 570                                                         fname, lineno, right );
 571                                                 acl_usage();
 572                                         }
 573
 574                                         continue;
 575                                 }
 576
 577                                 if ( strncasecmp( left, "group", sizeof("group")-1 ) == 0 ) {
 578                                         char *name = NULL;
 579                                         char *value = NULL;
 580
 581                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 582                                                 fprintf( stderr, "%s: line %d: "
 583                                                         "inappropriate style \"%s\" in by clause\n",
 584                                                     fname, lineno, style );
 585                                                 acl_usage();
 586                                         }
 587
 588                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 589                                                 fprintf( stderr, "%s: line %d: "
 590                                                         "missing \"=\" in (or value after) \"%s\" "
 591                                                         "in by clause\n",
 592                                                         fname, lineno, left );
 593                                                 acl_usage();
 594                                         }
 595
 596                                         if( b->a_group_pat.bv_len ) {
 597                                                 fprintf( stderr,
 598                                                         "%s: line %d: group pattern already specified.\n",
 599                                                         fname, lineno );
 600                                                 acl_usage();
 601                                         }
 602
 603                                         /* format of string is
 604                                                 "group/objectClassValue/groupAttrName" */
 605                                         if ((value = strchr(left, '/')) != NULL) {
 606                                                 *value++ = '\0';
 607                                                 if (*value && (name = strchr(value, '/')) != NULL) {
 608                                                         *name++ = '\0';
 609                                                 }
 610                                         }
 611
 612                                         b->a_group_style = sty;
 613                                         if (sty == ACL_STYLE_REGEX) {
 614                                                 acl_regex_normalized_dn( right, &bv );
 615                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 616                                                         regtest(fname, lineno, bv.bv_val);
 617                                                 }
 618                                                 b->a_group_pat = bv;
 619                                         } else {
 620                                                 ber_str2bv( right, 0, 0, &bv );
 621                                                 rc = dnNormalize( 0, NULL, NULL, &bv,
 622                                                         &b->a_group_pat, NULL );
 623                                                 if ( rc != LDAP_SUCCESS ) {
 624                                                         fprintf( stderr,
 625                                                                 "%s: line %d: bad DN \"%s\"\n",
 626                                                                 fname, lineno, right );
 627                                                         acl_usage();
 628                                                 }
 629                                         }
 630
 631                                         if (value && *value) {
 632                                                 b->a_group_oc = oc_find( value );
 633                                                 *--value = '/';
 634
 635                                                 if( b->a_group_oc == NULL ) {
 636                                                         fprintf( stderr,
 637                                                                 "%s: line %d: group objectclass "
 638                                                                 "\"%s\" unknown\n",
 639                                                                 fname, lineno, value );
 640                                                         acl_usage();
 641                                                 }
 642                                         } else {
 643                                                 b->a_group_oc = oc_find(SLAPD_GROUP_CLASS);
 644
 645                                                 if( b->a_group_oc == NULL ) {
 646                                                         fprintf( stderr,
 647                                                                 "%s: line %d: group default objectclass "
 648                                                                 "\"%s\" unknown\n",
 649                                                                 fname, lineno, SLAPD_GROUP_CLASS );
 650                                                         acl_usage();
 651                                                 }
 652                                         }
 653
 654                                         if( is_object_subclass( slap_schema.si_oc_referral,
 655                                                 b->a_group_oc ))
 656                                         {
 657                                                 fprintf( stderr,
 658                                                         "%s: line %d: group objectclass \"%s\" "
 659                                                         "is subclass of referral\n",
 660                                                         fname, lineno, value );
 661                                                 acl_usage();
 662                                         }
 663
 664                                         if( is_object_subclass( slap_schema.si_oc_alias,
 665                                                 b->a_group_oc ))
 666                                         {
 667                                                 fprintf( stderr,
 668                                                         "%s: line %d: group objectclass \"%s\" "
 669                                                         "is subclass of alias\n",
 670                                                         fname, lineno, value );
 671                                                 acl_usage();
 672                                         }
 673
 674                                         if (name && *name) {
 675                                                 rc = slap_str2ad( name, &b->a_group_at, &text );
 676
 677                                                 if( rc != LDAP_SUCCESS ) {
 678                                                         fprintf( stderr,
 679                                                                 "%s: line %d: group \"%s\": %s\n",
 680                                                                 fname, lineno, right, text );
 681                                                         acl_usage();
 682                                                 }
 683                                                 *--name = '/';
 684                                         } else {
 685                                                 rc = slap_str2ad( SLAPD_GROUP_ATTR, &b->a_group_at, &text );
 686
 687                                                 if( rc != LDAP_SUCCESS ) {
 688                                                         fprintf( stderr,
 689                                                                 "%s: line %d: group \"%s\": %s\n",
 690                                                                 fname, lineno, SLAPD_GROUP_ATTR, text );
 691                                                         acl_usage();
 692                                                 }
 693                                         }
 694
 695                                         if( !is_at_syntax( b->a_group_at->ad_type,
 696                                                 SLAPD_DN_SYNTAX ) &&
 697                                             !is_at_syntax( b->a_group_at->ad_type,
 698                                                 SLAPD_NAMEUID_SYNTAX ) &&
 699                                                 !is_at_subtype( b->a_group_at->ad_type, slap_schema.si_ad_labeledURI->ad_type ))
 700                                         {
 701                                                 fprintf( stderr,
 702                                                         "%s: line %d: group \"%s\": inappropriate syntax: %s\n",
 703                                                         fname, lineno, right,
 704                                                         b->a_group_at->ad_type->sat_syntax_oid );
 705                                                 acl_usage();
 706                                         }
 707
 708
 709                                         {
 710                                                 int rc;
 711                                                 struct berval vals[2];
 712
 713                                                 vals[0].bv_val = b->a_group_oc->soc_oid;
 714                                                 vals[0].bv_len = strlen(vals[0].bv_val);
 715                                                 vals[1].bv_val = NULL;
 716
 717
 718                                                 rc = oc_check_allowed( b->a_group_at->ad_type,
 719                                                         vals, NULL );
 720
 721                                                 if( rc != 0 ) {
 722                                                         fprintf( stderr, "%s: line %d: "
 723                                                                 "group: \"%s\" not allowed by \"%s\"\n",
 724                                                                 fname, lineno,
 725                                                                 b->a_group_at->ad_cname.bv_val,
 726                                                                 b->a_group_oc->soc_oid );
 727                                                         acl_usage();
 728                                                 }
 729                                         }
 730                                         continue;
 731                                 }
 732
 733                                 if ( strcasecmp( left, "peername" ) == 0 ) {
 734                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 735                                                 fprintf( stderr, "%s: line %d: "
 736                                                         "inappropriate style \"%s\" in by clause\n",
 737                                                     fname, lineno, style );
 738                                                 acl_usage();
 739                                         }
 740
 741                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 742                                                 fprintf( stderr, "%s: line %d: "
 743                                                         "missing \"=\" in (or value after) \"%s\" "
 744                                                         "in by clause\n",
 745                                                         fname, lineno, left );
 746                                                 acl_usage();
 747                                         }
 748
 749                                         if( b->a_peername_pat.bv_len ) {
 750                                                 fprintf( stderr, "%s: line %d: "
 751                                                         "peername pattern already specified.\n",
 752                                                         fname, lineno );
 753                                                 acl_usage();
 754                                         }
 755
 756                                         b->a_peername_style = sty;
 757                                         if (sty == ACL_STYLE_REGEX) {
 758                                                 acl_regex_normalized_dn( right, &bv );
 759                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 760                                                         regtest(fname, lineno, bv.bv_val);
 761                                                 }
 762                                                 b->a_peername_pat = bv;
 763                                         } else {
 764                                                 ber_str2bv( right, 0, 1, &b->a_peername_pat );
 765                                         }
 766                                         continue;
 767                                 }
 768
 769                                 if ( strcasecmp( left, "sockname" ) == 0 ) {
 770                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 771                                                 fprintf( stderr, "%s: line %d: "
 772                                                         "inappropriate style \"%s\" in by clause\n",
 773                                                     fname, lineno, style );
 774                                                 acl_usage();
 775                                         }
 776
 777                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 778                                                 fprintf( stderr, "%s: line %d: "
 779                                                         "missing \"=\" in (or value after) \"%s\" "
 780                                                         "in by clause\n",
 781                                                         fname, lineno, left );
 782                                                 acl_usage();
 783                                         }
 784
 785                                         if( b->a_sockname_pat.bv_len ) {
 786                                                 fprintf( stderr, "%s: line %d: "
 787                                                         "sockname pattern already specified.\n",
 788                                                         fname, lineno );
 789                                                 acl_usage();
 790                                         }
 791
 792                                         b->a_sockname_style = sty;
 793                                         if (sty == ACL_STYLE_REGEX) {
 794                                                 acl_regex_normalized_dn( right, &bv );
 795                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 796                                                         regtest(fname, lineno, bv.bv_val);
 797                                                 }
 798                                                 b->a_sockname_pat = bv;
 799                                         } else {
 800                                                 ber_str2bv( right, 0, 1, &b->a_sockname_pat );
 801                                         }
 802                                         continue;
 803                                 }
 804
 805                                 if ( strcasecmp( left, "domain" ) == 0 ) {
 806                                         switch ( sty ) {
 807                                         case ACL_STYLE_REGEX:
 808                                         case ACL_STYLE_BASE:
 809                                         case ACL_STYLE_SUBTREE:
 810                                                 break;
 811
 812                                         default:
 813                                                 fprintf( stderr,
 814                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 815                                                     fname, lineno, style );
 816                                                 acl_usage();
 817                                         }
 818
 819                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 820                                                 fprintf( stderr,
 821                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 822                                                         fname, lineno, left );
 823                                                 acl_usage();
 824                                         }
 825
 826                                         if( b->a_domain_pat.bv_len ) {
 827                                                 fprintf( stderr,
 828                                                         "%s: line %d: domain pattern already specified.\n",
 829                                                         fname, lineno );
 830                                                 acl_usage();
 831                                         }
 832
 833                                         b->a_domain_style = sty;
 834                                         b->a_domain_expand = expand;
 835                                         if (sty == ACL_STYLE_REGEX) {
 836                                                 acl_regex_normalized_dn( right, &bv );
 837                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 838                                                         regtest(fname, lineno, bv.bv_val);
 839                                                 }
 840                                                 b->a_domain_pat = bv;
 841                                         } else {
 842                                                 ber_str2bv( right, 0, 1, &b->a_domain_pat );
 843                                         }
 844                                         continue;
 845                                 }
 846
 847                                 if ( strcasecmp( left, "sockurl" ) == 0 ) {
 848                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 849                                                 fprintf( stderr,
 850                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 851                                                     fname, lineno, style );
 852                                                 acl_usage();
 853                                         }
 854
 855                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 856                                                 fprintf( stderr,
 857                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 858                                                         fname, lineno, left );
 859                                                 acl_usage();
 860                                         }
 861
 862                                         if( b->a_sockurl_pat.bv_len ) {
 863                                                 fprintf( stderr,
 864                                                         "%s: line %d: sockurl pattern already specified.\n",
 865                                                         fname, lineno );
 866                                                 acl_usage();
 867                                         }
 868
 869                                         b->a_sockurl_style = sty;
 870                                         if (sty == ACL_STYLE_REGEX) {
 871                                                 acl_regex_normalized_dn( right, &bv );
 872                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 873                                                         regtest(fname, lineno, bv.bv_val);
 874                                                 }
 875                                                 b->a_sockurl_pat = bv;
 876                                         } else {
 877                                                 ber_str2bv( right, 0, 1, &b->a_sockurl_pat );
 878                                         }
 879                                         continue;
 880                                 }
 881
 882                                 if ( strcasecmp( left, "set" ) == 0 ) {
 883                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 884                                                 fprintf( stderr,
 885                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 886                                                     fname, lineno, style );
 887                                                 acl_usage();
 888                                         }
 889
 890                                         if( b->a_set_pat.bv_len != 0 ) {
 891                                                 fprintf( stderr,
 892                                                         "%s: line %d: set attribute already specified.\n",
 893                                                         fname, lineno );
 894                                                 acl_usage();
 895                                         }
 896
 897                                         if ( right == NULL || *right == '\0' ) {
 898                                                 fprintf( stderr,
 899                                                         "%s: line %d: no set is defined\n",
 900                                                         fname, lineno );
 901                                                 acl_usage();
 902                                         }
 903
 904                                         b->a_set_style = sty;
 905                                         ber_str2bv( right, 0, 1, &b->a_set_pat );
 906
 907                                         continue;
 908                                 }
 909
 910 #ifdef SLAPD_ACI_ENABLED
 911                                 if ( strcasecmp( left, "aci" ) == 0 ) {
 912                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 913                                                 fprintf( stderr,
 914                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 915                                                     fname, lineno, style );
 916                                                 acl_usage();
 917                                         }
 918
 919                                         if( b->a_aci_at != NULL ) {
 920                                                 fprintf( stderr,
 921                                                         "%s: line %d: aci attribute already specified.\n",
 922                                                         fname, lineno );
 923                                                 acl_usage();
 924                                         }
 925
 926                                         if ( right != NULL && *right != '\0' ) {
 927                                                 rc = slap_str2ad( right, &b->a_aci_at, &text );
 928
 929                                                 if( rc != LDAP_SUCCESS ) {
 930                                                         fprintf( stderr,
 931                                                                 "%s: line %d: aci \"%s\": %s\n",
 932                                                                 fname, lineno, right, text );
 933                                                         acl_usage();
 934                                                 }
 935
 936                                         } else {
 937                                                 b->a_aci_at = slap_schema.si_ad_aci;
 938                                         }
 939
 940                                         if( !is_at_syntax( b->a_aci_at->ad_type,
 941                                                 SLAPD_ACI_SYNTAX) )
 942                                         {
 943                                                 fprintf( stderr,
 944                                                         "%s: line %d: aci \"%s\": inappropriate syntax: %s\n",
 945                                                         fname, lineno, right,
 946                                                         b->a_aci_at->ad_type->sat_syntax_oid );
 947                                                 acl_usage();
 948                                         }
 949
 950                                         continue;
 951                                 }
 952 #endif /* SLAPD_ACI_ENABLED */
 953
 954                                 if ( strcasecmp( left, "ssf" ) == 0 ) {
 955                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 956                                                 fprintf( stderr,
 957                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 958                                                     fname, lineno, style );
 959                                                 acl_usage();
 960                                         }
 961
 962                                         if( b->a_authz.sai_ssf ) {
 963                                                 fprintf( stderr,
 964                                                         "%s: line %d: ssf attribute already specified.\n",
 965                                                         fname, lineno );
 966                                                 acl_usage();
 967                                         }
 968
 969                                         if ( right == NULL || *right == '\0' ) {
 970                                                 fprintf( stderr,
 971                                                         "%s: line %d: no ssf is defined\n",
 972                                                         fname, lineno );
 973                                                 acl_usage();
 974                                         }
 975
 976                                         b->a_authz.sai_ssf = atoi( right );
 977
 978                                         if( !b->a_authz.sai_ssf ) {
 979                                                 fprintf( stderr,
 980                                                         "%s: line %d: invalid ssf value (%s)\n",
 981                                                         fname, lineno, right );
 982                                                 acl_usage();
 983                                         }
 984                                         continue;
 985                                 }
 986
 987                                 if ( strcasecmp( left, "transport_ssf" ) == 0 ) {
 988                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 989                                                 fprintf( stderr,
 990                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 991                                                     fname, lineno, style );
 992                                                 acl_usage();
 993                                         }
 994
 995                                         if( b->a_authz.sai_transport_ssf ) {
 996                                                 fprintf( stderr,
 997                                                         "%s: line %d: transport_ssf attribute already specified.\n",
 998                                                         fname, lineno );
 999                                                 acl_usage();
1000                                         }
1001
1002                                         if ( right == NULL || *right == '\0' ) {
1003                                                 fprintf( stderr,
1004                                                         "%s: line %d: no transport_ssf is defined\n",
1005                                                         fname, lineno );
1006                                                 acl_usage();
1007                                         }
1008
1009                                         b->a_authz.sai_transport_ssf = atoi( right );
1010
1011                                         if( !b->a_authz.sai_transport_ssf ) {
1012                                                 fprintf( stderr,
1013                                                         "%s: line %d: invalid transport_ssf value (%s)\n",
1014                                                         fname, lineno, right );
1015                                                 acl_usage();
1016                                         }
1017                                         continue;
1018                                 }
1019
1020                                 if ( strcasecmp( left, "tls_ssf" ) == 0 ) {
1021                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
1022                                                 fprintf( stderr,
1023                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
1024                                                     fname, lineno, style );
1025                                                 acl_usage();
1026                                         }
1027
1028                                         if( b->a_authz.sai_tls_ssf ) {
1029                                                 fprintf( stderr,
1030                                                         "%s: line %d: tls_ssf attribute already specified.\n",
1031                                                         fname, lineno );
1032                                                 acl_usage();
1033                                         }
1034
1035                                         if ( right == NULL || *right == '\0' ) {
1036                                                 fprintf( stderr,
1037                                                         "%s: line %d: no tls_ssf is defined\n",
1038                                                         fname, lineno );
1039                                                 acl_usage();
1040                                         }
1041
1042                                         b->a_authz.sai_tls_ssf = atoi( right );
1043
1044                                         if( !b->a_authz.sai_tls_ssf ) {
1045                                                 fprintf( stderr,
1046                                                         "%s: line %d: invalid tls_ssf value (%s)\n",
1047                                                         fname, lineno, right );
1048                                                 acl_usage();
1049                                         }
1050                                         continue;
1051                                 }
1052
1053                                 if ( strcasecmp( left, "sasl_ssf" ) == 0 ) {
1054                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
1055                                                 fprintf( stderr,
1056                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
1057                                                     fname, lineno, style );
1058                                                 acl_usage();
1059                                         }
1060
1061                                         if( b->a_authz.sai_sasl_ssf ) {
1062                                                 fprintf( stderr,
1063                                                         "%s: line %d: sasl_ssf attribute already specified.\n",
1064                                                         fname, lineno );
1065                                                 acl_usage();
1066                                         }
1067
1068                                         if ( right == NULL || *right == '\0' ) {
1069                                                 fprintf( stderr,
1070                                                         "%s: line %d: no sasl_ssf is defined\n",
1071                                                         fname, lineno );
1072                                                 acl_usage();
1073                                         }
1074
1075                                         b->a_authz.sai_sasl_ssf = atoi( right );
1076
1077                                         if( !b->a_authz.sai_sasl_ssf ) {
1078                                                 fprintf( stderr,
1079                                                         "%s: line %d: invalid sasl_ssf value (%s)\n",
1080                                                         fname, lineno, right );
1081                                                 acl_usage();
1082                                         }
1083                                         continue;
1084                                 }
1085
1086                                 if( right != NULL ) {
1087                                         /* unsplit */
1088                                         right[-1] = '=';
1089                                 }
1090                                 break;
1091                         }
1092
1093                         if( i == argc || ( strcasecmp( left, "stop" ) == 0 )) {
1094                                 /* out of arguments or plain stop */
1095
1096                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
1097                                 b->a_type = ACL_STOP;
1098
1099                                 access_append( &a->acl_access, b );
1100                                 continue;
1101                         }
1102
1103                         if( strcasecmp( left, "continue" ) == 0 ) {
1104                                 /* plain continue */
1105
1106                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
1107                                 b->a_type = ACL_CONTINUE;
1108
1109                                 access_append( &a->acl_access, b );
1110                                 continue;
1111                         }
1112
1113                         if( strcasecmp( left, "break" ) == 0 ) {
1114                                 /* plain continue */
1115
1116                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
1117                                 b->a_type = ACL_BREAK;
1118
1119                                 access_append( &a->acl_access, b );
1120                                 continue;
1121                         }
1122
1123                         if ( strcasecmp( left, "by" ) == 0 ) {
1124                                 /* we've gone too far */
1125                                 --i;
1126                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
1127                                 b->a_type = ACL_STOP;
1128
1129                                 access_append( &a->acl_access, b );
1130                                 continue;
1131                         }
1132
1133                         /* get <access> */
1134                         if( strncasecmp( left, "self", 4 ) == 0 ) {
1135                                 b->a_dn_self = 1;
1136                                 ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( &left[4] ) );
1137
1138                         } else {
1139                                 ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( left ) );
1140                         }
1141
1142                         if( ACL_IS_INVALID( b->a_access_mask ) ) {
1143                                 fprintf( stderr,
1144                                         "%s: line %d: expecting <access> got \"%s\"\n",
1145                                         fname, lineno, left );
1146                                 acl_usage();
1147                         }
1148
1149                         b->a_type = ACL_STOP;
1150
1151                         if( ++i == argc ) {
1152                                 /* out of arguments or plain stop */
1153                                 access_append( &a->acl_access, b );
1154                                 continue;
1155                         }
1156
1157                         if( strcasecmp( argv[i], "continue" ) == 0 ) {
1158                                 /* plain continue */
1159                                 b->a_type = ACL_CONTINUE;
1160
1161                         } else if( strcasecmp( argv[i], "break" ) == 0 ) {
1162                                 /* plain continue */
1163                                 b->a_type = ACL_BREAK;
1164
1165                         } else if ( strcasecmp( argv[i], "stop" ) != 0 ) {
1166                                 /* gone to far */
1167                                 i--;
1168                         }
1169
1170                         access_append( &a->acl_access, b );
1171
1172                 } else {
1173                         fprintf( stderr,
1174                     "%s: line %d: expecting \"to\" or \"by\" got \"%s\"\n",
1175                             fname, lineno, argv[i] );
1176                         acl_usage();
1177                 }
1178         }
1179
1180         /* if we have no real access clause, complain and do nothing */
1181         if ( a == NULL ) {
1182                         fprintf( stderr,
1183                                 "%s: line %d: warning: no access clause(s) specified in access line\n",
1184                             fname, lineno );
1185
1186         } else {
1187 #ifdef LDAP_DEBUG
1188                 if (ldap_debug & LDAP_DEBUG_ACL)
1189                         print_acl(be, a);
1190 #endif
1191
1192                 if ( a->acl_access == NULL ) {
1193                         fprintf( stderr,
1194                         "%s: line %d: warning: no by clause(s) specified in access line\n",
1195                             fname, lineno );
1196                 }
1197
1198                 if ( be != NULL ) {
1199                         acl_append( &be->be_acl, a );
1200                 } else {
1201                         acl_append( &global_acl, a );
1202                 }
1203         }
1204 }
1205
1206 char *
1207 accessmask2str( slap_mask_t mask, char *buf )
1208 {
1209         int none=1;
1210         char *ptr = buf;
1211
1212         assert( buf != NULL );
1213
1214         if ( ACL_IS_INVALID( mask ) ) {
1215                 return "invalid";
1216         }
1217
1218         buf[0] = '\0';
1219
1220         if ( ACL_IS_LEVEL( mask ) ) {
1221                 if ( ACL_LVL_IS_NONE(mask) ) {
1222                         ptr = lutil_strcopy( ptr, "none" );
1223
1224                 } else if ( ACL_LVL_IS_AUTH(mask) ) {
1225                         ptr = lutil_strcopy( ptr, "auth" );
1226
1227                 } else if ( ACL_LVL_IS_COMPARE(mask) ) {
1228                         ptr = lutil_strcopy( ptr, "compare" );
1229
1230                 } else if ( ACL_LVL_IS_SEARCH(mask) ) {
1231                         ptr = lutil_strcopy( ptr, "search" );
1232
1233                 } else if ( ACL_LVL_IS_READ(mask) ) {
1234                         ptr = lutil_strcopy( ptr, "read" );
1235
1236                 } else if ( ACL_LVL_IS_WRITE(mask) ) {
1237                         ptr = lutil_strcopy( ptr, "write" );
1238                 } else {
1239                         ptr = lutil_strcopy( ptr, "unknown" );
1240                 }
1241
1242                 *ptr++ = '(';
1243         }
1244
1245         if( ACL_IS_ADDITIVE( mask ) ) {
1246                 *ptr++ = '+';
1247
1248         } else if( ACL_IS_SUBTRACTIVE( mask ) ) {
1249                 *ptr++ = '-';
1250
1251         } else {
1252                 *ptr++ = '=';
1253         }
1254
1255         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_WRITE) ) {
1256                 none = 0;
1257                 *ptr++ = 'w';
1258         }
1259
1260         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_READ) ) {
1261                 none = 0;
1262                 *ptr++ = 'r';
1263         }
1264
1265         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_SEARCH) ) {
1266                 none = 0;
1267                 *ptr++ = 's';
1268         }
1269
1270         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_COMPARE) ) {
1271                 none = 0;
1272                 *ptr++ = 'c';
1273         }
1274
1275         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_AUTH) ) {
1276                 none = 0;
1277                 *ptr++ = 'x';
1278         }
1279
1280         if ( none && ACL_PRIV_ISSET(mask, ACL_PRIV_NONE) ) {
1281                 none = 0;
1282                 *ptr++ = 'n';
1283         }
1284
1285         if ( none ) {
1286                 *ptr++ = '0';
1287         }
1288
1289         if ( ACL_IS_LEVEL( mask ) ) {
1290                 *ptr++ = ')';
1291         }
1292
1293         *ptr = '\0';
1294
1295         return buf;
1296 }
1297
1298 slap_mask_t
1299 str2accessmask( const char *str )
1300 {
1301         slap_mask_t     mask;
1302
1303         if( !ASCII_ALPHA(str[0]) ) {
1304                 int i;
1305
1306                 if ( str[0] == '=' ) {
1307                         ACL_INIT(mask);
1308
1309                 } else if( str[0] == '+' ) {
1310                         ACL_PRIV_ASSIGN(mask, ACL_PRIV_ADDITIVE);
1311
1312                 } else if( str[0] == '-' ) {
1313                         ACL_PRIV_ASSIGN(mask, ACL_PRIV_SUBSTRACTIVE);
1314
1315                 } else {
1316                         ACL_INVALIDATE(mask);
1317                         return mask;
1318                 }
1319
1320                 for( i=1; str[i] != '\0'; i++ ) {
1321                         if( TOLOWER((unsigned char) str[i]) == 'w' ) {
1322                                 ACL_PRIV_SET(mask, ACL_PRIV_WRITE);
1323
1324                         } else if( TOLOWER((unsigned char) str[i]) == 'r' ) {
1325                                 ACL_PRIV_SET(mask, ACL_PRIV_READ);
1326
1327                         } else if( TOLOWER((unsigned char) str[i]) == 's' ) {
1328                                 ACL_PRIV_SET(mask, ACL_PRIV_SEARCH);
1329
1330                         } else if( TOLOWER((unsigned char) str[i]) == 'c' ) {
1331                                 ACL_PRIV_SET(mask, ACL_PRIV_COMPARE);
1332
1333                         } else if( TOLOWER((unsigned char) str[i]) == 'x' ) {
1334                                 ACL_PRIV_SET(mask, ACL_PRIV_AUTH);
1335
1336                         } else if( str[i] != '0' ) {
1337                                 ACL_INVALIDATE(mask);
1338                                 return mask;
1339                         }
1340                 }
1341
1342                 return mask;
1343         }
1344
1345         if ( strcasecmp( str, "none" ) == 0 ) {
1346                 ACL_LVL_ASSIGN_NONE(mask);
1347
1348         } else if ( strcasecmp( str, "auth" ) == 0 ) {
1349                 ACL_LVL_ASSIGN_AUTH(mask);
1350
1351         } else if ( strcasecmp( str, "compare" ) == 0 ) {
1352                 ACL_LVL_ASSIGN_COMPARE(mask);
1353
1354         } else if ( strcasecmp( str, "search" ) == 0 ) {
1355                 ACL_LVL_ASSIGN_SEARCH(mask);
1356
1357         } else if ( strcasecmp( str, "read" ) == 0 ) {
1358                 ACL_LVL_ASSIGN_READ(mask);
1359
1360         } else if ( strcasecmp( str, "write" ) == 0 ) {
1361                 ACL_LVL_ASSIGN_WRITE(mask);
1362
1363         } else {
1364                 ACL_INVALIDATE( mask );
1365         }
1366
1367         return mask;
1368 }
1369
1370 static void
1371 acl_usage( void )
1372 {
1373         fprintf( stderr, "%s%s\n",
1374                 "<access clause> ::= access to <what> "
1375                                 "[ by <who> <access> [ <control> ] ]+ \n"
1376                 "<what> ::= * | [dn[.<dnstyle>]=<DN>] [filter=<filter>] [attrs=<attrlist>]\n"
1377                 "<attrlist> ::= <attr> [val[.<style>]=<value>] | <attr> , <attrlist>\n"
1378                 "<attr> ::= <attrname> | entry | children\n"
1379                 "<who> ::= [ * | anonymous | users | self | dn[.<dnstyle>]=<DN> ]\n"
1380                         "\t[dnattr=<attrname>]\n"
1381                         "\t[group[/<objectclass>[/<attrname>]][.<style>]=<group>]\n"
1382                         "\t[peername[.<style>]=<peer>] [sockname[.<style>]=<name>]\n",
1383                         "\t[domain[.<style>]=<domain>] [sockurl[.<style>]=<url>]\n"
1384 #ifdef SLAPD_ACI_ENABLED
1385                         "\t[aci=<attrname>]\n"
1386 #endif
1387                         "\t[ssf=<n>] [transport_ssf=<n>] [tls_ssf=<n>] [sasl_ssf=<n>]\n"
1388                 "<dnstyle> ::= base | exact | one | subtree | children | regex\n"
1389                 "<style> ::= regex | base | exact\n"
1390                 "<access> ::= [self]{<level>|<priv>}\n"
1391                 "<level> ::= none | auth | compare | search | read | write\n"
1392                 "<priv> ::= {=|+|-}{w|r|s|c|x}+\n"
1393                 "<control> ::= [ stop | continue | break ]\n"
1394         );
1395         exit( EXIT_FAILURE );
1396 }
1397
1398 /*
1399  * Set pattern to a "normalized" DN from src.
1400  * At present it simply eats the (optional) space after
1401  * a RDN separator (,)
1402  * Eventually will evolve in a more complete normalization
1403  */
1404 static void
1405 acl_regex_normalized_dn(
1406         const char *src,
1407         struct berval *pattern
1408 )
1409 {
1410         char *str, *p;
1411         ber_len_t len;
1412
1413         str = ch_strdup( src );
1414         len = strlen( src );
1415
1416         for ( p = str; p && p[ 0 ]; p++ ) {
1417                 /* escape */
1418                 if ( p[ 0 ] == '\\' && p[ 1 ] ) {
1419                         /*
1420                          * if escaping a hex pair we should
1421                          * increment p twice; however, in that
1422                          * case the second hex number does
1423                          * no harm
1424                          */
1425                         p++;
1426                 }
1427
1428                 if ( p[ 0 ] == ',' ) {
1429                         if ( p[ 1 ] == ' ' ) {
1430                                 char *q;
1431
1432                                 /*
1433                                  * too much space should be
1434                                  * an error if we are pedantic
1435                                  */
1436                                 for ( q = &p[ 2 ]; q[ 0 ] == ' '; q++ ) {
1437                                         /* DO NOTHING */ ;
1438                                 }
1439                                 AC_MEMCPY( p+1, q, len-(q-str)+1);
1440                         }
1441                 }
1442         }
1443         pattern->bv_val = str;
1444         pattern->bv_len = p-str;
1445
1446         return;
1447 }
1448
1449 static void
1450 split(
1451     char        *line,
1452     int         splitchar,
1453     char        **left,
1454     char        **right
1455 )
1456 {
1457         *left = line;
1458         if ( (*right = strchr( line, splitchar )) != NULL ) {
1459                 *((*right)++) = '\0';
1460         }
1461 }
1462
1463 static void
1464 access_append( Access **l, Access *a )
1465 {
1466         for ( ; *l != NULL; l = &(*l)->a_next )
1467                 ;       /* NULL */
1468
1469         *l = a;
1470 }
1471
1472 void
1473 acl_append( AccessControl **l, AccessControl *a )
1474 {
1475         for ( ; *l != NULL; l = &(*l)->acl_next )
1476                 ;       /* NULL */
1477
1478         *l = a;
1479 }
1480
1481 static void
1482 access_free( Access *a )
1483 {
1484         if ( a->a_dn_pat.bv_val )
1485                 free ( a->a_dn_pat.bv_val );
1486         if ( a->a_peername_pat.bv_val )
1487                 free ( a->a_peername_pat.bv_val );
1488         if ( a->a_sockname_pat.bv_val )
1489                 free ( a->a_sockname_pat.bv_val );
1490         if ( a->a_domain_pat.bv_val )
1491                 free ( a->a_domain_pat.bv_val );
1492         if ( a->a_sockurl_pat.bv_val )
1493                 free ( a->a_sockurl_pat.bv_val );
1494         if ( a->a_set_pat.bv_len )
1495                 free ( a->a_set_pat.bv_val );
1496         if ( a->a_group_pat.bv_len )
1497                 free ( a->a_group_pat.bv_val );
1498         free( a );
1499 }
1500
1501 void
1502 acl_free( AccessControl *a )
1503 {
1504         Access *n;
1505         AttributeName *an;
1506
1507         if ( a->acl_filter )
1508                 filter_free( a->acl_filter );
1509         if ( a->acl_dn_pat.bv_len )
1510                 free ( a->acl_dn_pat.bv_val );
1511         if ( a->acl_attrs ) {
1512                 for ( an = a->acl_attrs; an->an_name.bv_val; an++ ) {
1513                         free( an->an_name.bv_val );
1514                 }
1515                 free( a->acl_attrs );
1516         }
1517         for (; a->acl_access; a->acl_access = n) {
1518                 n = a->acl_access->a_next;
1519                 access_free( a->acl_access );
1520         }
1521         free( a );
1522 }
1523
1524 /* Because backend_startup uses acl_append to tack on the global_acl to
1525  * the end of each backend's acl, we cannot just take one argument and
1526  * merrily free our way to the end of the list. backend_destroy calls us
1527  * with the be_acl in arg1, and global_acl in arg2 to give us a stopping
1528  * point. config_destroy calls us with global_acl in arg1 and NULL in
1529  * arg2, so we then proceed to polish off the global_acl.
1530  */
1531 void
1532 acl_destroy( AccessControl *a, AccessControl *end )
1533 {
1534         AccessControl *n;
1535
1536         for (; a && a!= end; a=n) {
1537                 n = a->acl_next;
1538                 acl_free( a );
1539         }
1540 }
1541
1542 char *
1543 access2str( slap_access_t access )
1544 {
1545         if ( access == ACL_NONE ) {
1546                 return "none";
1547
1548         } else if ( access == ACL_AUTH ) {
1549                 return "auth";
1550
1551         } else if ( access == ACL_COMPARE ) {
1552                 return "compare";
1553
1554         } else if ( access == ACL_SEARCH ) {
1555                 return "search";
1556
1557         } else if ( access == ACL_READ ) {
1558                 return "read";
1559
1560         } else if ( access == ACL_WRITE ) {
1561                 return "write";
1562         }
1563
1564         return "unknown";
1565 }
1566
1567 slap_access_t
1568 str2access( const char *str )
1569 {
1570         if ( strcasecmp( str, "none" ) == 0 ) {
1571                 return ACL_NONE;
1572
1573         } else if ( strcasecmp( str, "auth" ) == 0 ) {
1574                 return ACL_AUTH;
1575
1576         } else if ( strcasecmp( str, "compare" ) == 0 ) {
1577                 return ACL_COMPARE;
1578
1579         } else if ( strcasecmp( str, "search" ) == 0 ) {
1580                 return ACL_SEARCH;
1581
1582         } else if ( strcasecmp( str, "read" ) == 0 ) {
1583                 return ACL_READ;
1584
1585         } else if ( strcasecmp( str, "write" ) == 0 ) {
1586                 return ACL_WRITE;
1587         }
1588
1589         return( ACL_INVALID_ACCESS );
1590 }
1591
1592 #ifdef LDAP_DEBUG
1593
1594 static char *style_strings[5] = { "regex",
1595         "base", "one", "subtree", "children" };
1596
1597 static void
1598 print_access( Access *b )
1599 {
1600         char maskbuf[ACCESSMASK_MAXLEN];
1601
1602         fprintf( stderr, "\tby" );
1603
1604         if ( b->a_dn_pat.bv_len != 0 ) {
1605                 if( strcmp(b->a_dn_pat.bv_val, "*") == 0
1606                         || strcmp(b->a_dn_pat.bv_val, "users") == 0
1607                         || strcmp(b->a_dn_pat.bv_val, "anonymous") == 0
1608                         || strcmp(b->a_dn_pat.bv_val, "self") == 0 )
1609                 {
1610                         fprintf( stderr, " %s", b->a_dn_pat.bv_val );
1611
1612                 } else {
1613                         fprintf( stderr, " dn.%s=\"%s\"",
1614                                 style_strings[b->a_dn_style], b->a_dn_pat.bv_val );
1615                 }
1616         }
1617
1618         if ( b->a_dn_at != NULL ) {
1619                 fprintf( stderr, " dnattr=%s", b->a_dn_at->ad_cname.bv_val );
1620         }
1621
1622         if ( b->a_group_pat.bv_len ) {
1623                 fprintf( stderr, " group/%s/%s.%s=\"%s\"",
1624                         b->a_group_oc ? b->a_group_oc->soc_cname.bv_val : "groupOfNames",
1625                         b->a_group_at ? b->a_group_at->ad_cname.bv_val : "member",
1626                         style_strings[b->a_group_style],
1627                         b->a_group_pat.bv_val );
1628     }
1629
1630         if ( b->a_peername_pat.bv_len != 0 ) {
1631                 fprintf( stderr, " peername=\"%s\"", b->a_peername_pat.bv_val );
1632         }
1633
1634         if ( b->a_sockname_pat.bv_len != 0 ) {
1635                 fprintf( stderr, " sockname=\"%s\"", b->a_sockname_pat.bv_val );
1636         }
1637
1638         if ( b->a_domain_pat.bv_len != 0 ) {
1639                 fprintf( stderr, " domain=%s", b->a_domain_pat.bv_val );
1640         }
1641
1642         if ( b->a_sockurl_pat.bv_len != 0 ) {
1643                 fprintf( stderr, " sockurl=\"%s\"", b->a_sockurl_pat.bv_val );
1644         }
1645
1646 #ifdef SLAPD_ACI_ENABLED
1647         if ( b->a_aci_at != NULL ) {
1648                 fprintf( stderr, " aci=%s", b->a_aci_at->ad_cname.bv_val );
1649         }
1650 #endif
1651
1652         /* Security Strength Factors */
1653         if ( b->a_authz.sai_ssf ) {
1654                 fprintf( stderr, " ssf=%u",
1655                         b->a_authz.sai_ssf );
1656         }
1657         if ( b->a_authz.sai_transport_ssf ) {
1658                 fprintf( stderr, " transport_ssf=%u",
1659                         b->a_authz.sai_transport_ssf );
1660         }
1661         if ( b->a_authz.sai_tls_ssf ) {
1662                 fprintf( stderr, " tls_ssf=%u",
1663                         b->a_authz.sai_tls_ssf );
1664         }
1665         if ( b->a_authz.sai_sasl_ssf ) {
1666                 fprintf( stderr, " sasl_ssf=%u",
1667                         b->a_authz.sai_sasl_ssf );
1668         }
1669
1670         fprintf( stderr, " %s%s",
1671                 b->a_dn_self ? "self" : "",
1672                 accessmask2str( b->a_access_mask, maskbuf ) );
1673
1674         if( b->a_type == ACL_BREAK ) {
1675                 fprintf( stderr, " break" );
1676
1677         } else if( b->a_type == ACL_CONTINUE ) {
1678                 fprintf( stderr, " continue" );
1679
1680         } else if( b->a_type != ACL_STOP ) {
1681                 fprintf( stderr, " unknown-control" );
1682         }
1683
1684         fprintf( stderr, "\n" );
1685 }
1686
1687
1688 static void
1689 print_acl( Backend *be, AccessControl *a )
1690 {
1691         int             to = 0;
1692         Access  *b;
1693
1694         fprintf( stderr, "%s ACL: access to",
1695                 be == NULL ? "Global" : "Backend" );
1696
1697         if ( a->acl_dn_pat.bv_len != 0 ) {
1698                 to++;
1699                 fprintf( stderr, " dn.%s=\"%s\"\n",
1700                         style_strings[a->acl_dn_style], a->acl_dn_pat.bv_val );
1701         }
1702
1703         if ( a->acl_filter != NULL ) {
1704                 struct berval bv = { 0, NULL };
1705                 to++;
1706                 filter2bv( a->acl_filter, &bv );
1707                 fprintf( stderr, " filter=%s\n", bv.bv_val );
1708                 ch_free( bv.bv_val );
1709         }
1710
1711         if ( a->acl_attrs != NULL ) {
1712                 int     first = 1;
1713                 AttributeName *an;
1714                 to++;
1715
1716                 fprintf( stderr, " attrs=" );
1717                 for ( an = a->acl_attrs; an && an->an_name.bv_val; an++ ) {
1718                         if ( ! first ) {
1719                                 fprintf( stderr, "," );
1720                         }
1721                         if (an->an_oc) {
1722                                 fputc( an->an_oc_exclude ? '!' : '@', stderr);
1723                         }
1724                         fputs( an->an_name.bv_val, stderr );
1725                         first = 0;
1726                 }
1727                 fprintf(  stderr, "\n" );
1728         }
1729
1730         if ( a->acl_attrval.bv_len != 0 ) {
1731                 to++;
1732                 fprintf( stderr, " val.%s=\"%s\"\n",
1733                         style_strings[a->acl_attrval_style], a->acl_attrval.bv_val );
1734
1735         }
1736
1737         if( !to ) {
1738                 fprintf( stderr, " *\n" );
1739         }
1740
1741         for ( b = a->acl_access; b != NULL; b = b->a_next ) {
1742                 print_access( b );
1743         }
1744
1745         fprintf( stderr, "\n" );
1746 }
1747
1748 #endif /* LDAP_DEBUG */