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 char *style_strings[] = { "regex",
  42         "base", "one", "subtree", "children", NULL };
  43
  44 static void             split(char *line, int splitchar, char **left, char **right);
  45 static void             access_append(Access **l, Access *a);
  46 static void             acl_usage(void) LDAP_GCCATTR((noreturn));
  47
  48 static void             acl_regex_normalized_dn(const char *src, struct berval *pat);
  49
  50 #ifdef LDAP_DEBUG
  51 static void             print_acl(Backend *be, AccessControl *a);
  52 static void             print_access(Access *b);
  53 #endif
  54
  55 static void
  56 regtest(const char *fname, int lineno, char *pat) {
  57         int e;
  58         regex_t re;
  59
  60         char buf[512];
  61         unsigned size;
  62
  63         char *sp;
  64         char *dp;
  65         int  flag;
  66
  67         sp = pat;
  68         dp = buf;
  69         size = 0;
  70         buf[0] = '\0';
  71
  72         for (size = 0, flag = 0; (size < sizeof(buf)) && *sp; sp++) {
  73                 if (flag) {
  74                         if (*sp == '$'|| (*sp >= '0' && *sp <= '9')) {
  75                                 *dp++ = *sp;
  76                                 size++;
  77                         }
  78                         flag = 0;
  79
  80                 } else {
  81                         if (*sp == '$') {
  82                                 flag = 1;
  83                         } else {
  84                                 *dp++ = *sp;
  85                                 size++;
  86                         }
  87                 }
  88         }
  89
  90         *dp = '\0';
  91         if ( size >= (sizeof(buf)-1) ) {
  92                 fprintf( stderr,
  93                         "%s: line %d: regular expression \"%s\" too large\n",
  94                         fname, lineno, pat );
  95                 acl_usage();
  96         }
  97
  98         if ((e = regcomp(&re, buf, REG_EXTENDED|REG_ICASE))) {
  99                 char error[512];
 100                 regerror(e, &re, error, sizeof(error));
 101                 fprintf( stderr,
 102                         "%s: line %d: regular expression \"%s\" bad because of %s\n",
 103                         fname, lineno, pat, error );
 104                 acl_usage();
 105         }
 106         regfree(&re);
 107 }
 108
 109 void
 110 parse_acl(
 111     Backend     *be,
 112     const char  *fname,
 113     int         lineno,
 114     int         argc,
 115     char        **argv
 116 )
 117 {
 118         int             i;
 119         char            *left, *right, *style;
 120         struct berval   bv;
 121         AccessControl   *a;
 122         Access  *b;
 123         int rc;
 124         const char *text;
 125
 126         a = NULL;
 127         for ( i = 1; i < argc; i++ ) {
 128                 /* to clause - select which entries are protected */
 129                 if ( strcasecmp( argv[i], "to" ) == 0 ) {
 130                         if ( a != NULL ) {
 131                                 fprintf( stderr, "%s: line %d: "
 132                                         "only one to clause allowed in access line\n",
 133                                     fname, lineno );
 134                                 acl_usage();
 135                         }
 136                         a = (AccessControl *) ch_calloc( 1, sizeof(AccessControl) );
 137                         for ( ++i; i < argc; i++ ) {
 138                                 if ( strcasecmp( argv[i], "by" ) == 0 ) {
 139                                         i--;
 140                                         break;
 141                                 }
 142
 143                                 if ( strcasecmp( argv[i], "*" ) == 0 ) {
 144                                         if( a->acl_dn_pat.bv_len ||
 145                                                 ( a->acl_dn_style != ACL_STYLE_REGEX ) )
 146                                         {
 147                                                 fprintf( stderr,
 148                                                         "%s: line %d: dn pattern"
 149                                                         " already specified in to clause.\n",
 150                                                         fname, lineno );
 151                                                 acl_usage();
 152                                         }
 153
 154                                         a->acl_dn_pat.bv_val = ch_strdup( "*" );
 155                                         a->acl_dn_pat.bv_len = 1;
 156                                         continue;
 157                                 }
 158
 159                                 split( argv[i], '=', &left, &right );
 160                                 split( left, '.', &left, &style );
 161
 162                                 if ( right == NULL ) {
 163                                         fprintf( stderr, "%s: line %d: "
 164                                                 "missing \"=\" in \"%s\" in to clause\n",
 165                                             fname, lineno, left );
 166                                         acl_usage();
 167                                 }
 168
 169                                 if ( strcasecmp( left, "dn" ) == 0 ) {
 170                                         if( a->acl_dn_pat.bv_len != 0 ||
 171                                                 ( a->acl_dn_style != ACL_STYLE_REGEX ) )
 172                                         {
 173                                                 fprintf( stderr,
 174                                                         "%s: line %d: dn pattern"
 175                                                         " already specified in to clause.\n",
 176                                                         fname, lineno );
 177                                                 acl_usage();
 178                                         }
 179
 180                                         if ( style == NULL || *style == '\0' ||
 181                                                 ( strcasecmp( style, "base" ) == 0 ) ||
 182                                                 ( strcasecmp( style, "exact" ) == 0 ))
 183                                         {
 184                                                 a->acl_dn_style = ACL_STYLE_BASE;
 185                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 186
 187                                         } else if ( strcasecmp( style, "one" ) == 0 ) {
 188                                                 a->acl_dn_style = ACL_STYLE_ONE;
 189                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 190
 191                                         } else if ( strcasecmp( style, "subtree" ) == 0
 192                                                 || strcasecmp( style, "sub" ) == 0 )
 193                                         {
 194                                                 if( *right == '\0' ) {
 195                                                         a->acl_dn_pat.bv_val = ch_strdup( "*" );
 196                                                         a->acl_dn_pat.bv_len = 1;
 197
 198                                                 } else {
 199                                                         a->acl_dn_style = ACL_STYLE_SUBTREE;
 200                                                         ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 201                                                 }
 202
 203                                         } else if ( strcasecmp( style, "children" ) == 0 ) {
 204                                                 a->acl_dn_style = ACL_STYLE_CHILDREN;
 205                                                 ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 206
 207                                         } else if ( strcasecmp( style, "regex" ) == 0 ) {
 208                                                 a->acl_dn_style = ACL_STYLE_REGEX;
 209
 210                                                 if ( *right == '\0' ) {
 211                                                         /* empty regex should match empty DN */
 212                                                         a->acl_dn_style = ACL_STYLE_BASE;
 213                                                         ber_str2bv( right, 0, 1, &a->acl_dn_pat );
 214
 215                                                 } else if ( strcmp(right, "*") == 0
 216                                                         || strcmp(right, ".*") == 0
 217                                                         || strcmp(right, ".*$") == 0
 218                                                         || strcmp(right, "^.*") == 0
 219                                                         || strcmp(right, "^.*$") == 0
 220                                                         || strcmp(right, ".*$$") == 0
 221                                                         || strcmp(right, "^.*$$") == 0 )
 222                                                 {
 223                                                         a->acl_dn_pat.bv_val = ch_strdup( "*" );
 224                                                         a->acl_dn_pat.bv_len = sizeof("*")-1;
 225
 226                                                 } else {
 227                                                         acl_regex_normalized_dn( right, &a->acl_dn_pat );
 228                                                 }
 229
 230                                         } else {
 231                                                 fprintf( stderr, "%s: line %d: "
 232                                                         "unknown dn style \"%s\" in to clause\n",
 233                                                     fname, lineno, style );
 234                                                 acl_usage();
 235                                         }
 236
 237                                         continue;
 238                                 }
 239
 240                                 if ( strcasecmp( left, "filter" ) == 0 ) {
 241                                         if ( (a->acl_filter = str2filter( right )) == NULL ) {
 242                                                 fprintf( stderr,
 243                                 "%s: line %d: bad filter \"%s\" in to clause\n",
 244                                                     fname, lineno, right );
 245                                                 acl_usage();
 246                                         }
 247
 248                                 } else if ( strncasecmp( left, "attr", 4 ) == 0 ) {
 249                                         a->acl_attrs = str2anlist( a->acl_attrs,
 250                                                 right, "," );
 251                                         if ( a->acl_attrs == NULL ) {
 252                                                 fprintf( stderr,
 253                                 "%s: line %d: unknown attr \"%s\" in to clause\n",
 254                                                     fname, lineno, right );
 255                                                 acl_usage();
 256                                         }
 257
 258                                 } else if ( strncasecmp( left, "val", 3 ) == 0 ) {
 259                                         if ( a->acl_attrval.bv_len ) {
 260                                                 fprintf( stderr,
 261                                 "%s: line %d: attr val already specified in to clause.\n",
 262                                                         fname, lineno );
 263                                                 acl_usage();
 264                                         }
 265                                         if ( a->acl_attrs == NULL || a->acl_attrs[1].an_name.bv_val ) {
 266                                                 fprintf( stderr,
 267                                 "%s: line %d: attr val requires a single attribute.\n",
 268                                                         fname, lineno );
 269                                                 acl_usage();
 270                                         }
 271                                         ber_str2bv( right, 0, 1, &a->acl_attrval );
 272                                         if ( style && strcasecmp( style, "regex" ) == 0 ) {
 273                                                 int e = regcomp( &a->acl_attrval_re, a->acl_attrval.bv_val,
 274                                                         REG_EXTENDED | REG_ICASE | REG_NOSUB );
 275                                                 if ( e ) {
 276                                                         char buf[512];
 277                                                         regerror( e, &a->acl_attrval_re, buf, sizeof(buf) );
 278                                                         fprintf( stderr, "%s: line %d: "
 279                                                                 "regular expression \"%s\" bad because of %s\n",
 280                                                                 fname, lineno, right, buf );
 281                                                         acl_usage();
 282                                                 }
 283                                                 a->acl_attrval_style = ACL_STYLE_REGEX;
 284                                         } else {
 285                                                 /* FIXME: if the attribute has DN syntax,
 286                                                  * we might allow one, subtree and children styles as well */
 287                                                 if ( !strcasecmp( style, "exact" ) ) {
 288                                                         a->acl_attrval_style = ACL_STYLE_BASE;
 289
 290                                                 } else if ( a->acl_attrs[0].an_desc->ad_type->sat_syntax == slap_schema.si_syn_distinguishedName ) {
 291                                                         if ( !strcasecmp( style, "base" ) ) {
 292                                                                 a->acl_attrval_style = ACL_STYLE_BASE;
 293                                                         } else if ( !strcasecmp( style, "onelevel" ) || !strcasecmp( style, "one" ) ) {
 294                                                                 a->acl_attrval_style = ACL_STYLE_ONE;
 295                                                         } else if ( !strcasecmp( style, "subtree" ) || !strcasecmp( style, "sub" ) ) {
 296                                                                 a->acl_attrval_style = ACL_STYLE_SUBTREE;
 297                                                         } else if ( !strcasecmp( style, "children" ) ) {
 298                                                                 a->acl_attrval_style = ACL_STYLE_CHILDREN;
 299                                                         } else {
 300                                                                 fprintf( stderr,
 301                                                                         "%s: line %d: unknown val.<style> \"%s\" "
 302                                                                         "for attributeType \"%s\" with DN syntax; using \"base\"\n",
 303                                                                         fname, lineno, style,
 304                                                                         a->acl_attrs[0].an_desc->ad_cname.bv_val );
 305                                                                 a->acl_attrval_style = ACL_STYLE_BASE;
 306                                                         }
 307
 308                                                 } else {
 309                                                         fprintf( stderr,
 310                                                                 "%s: line %d: unknown val.<style> \"%s\" "
 311                                                                 "for attributeType \"%s\"; using \"exact\"\n",
 312                                                                 fname, lineno, style,
 313                                                                 a->acl_attrs[0].an_desc->ad_cname.bv_val );
 314                                                         a->acl_attrval_style = ACL_STYLE_BASE;
 315                                                 }
 316                                         }
 317
 318                                 } else {
 319                                         fprintf( stderr,
 320                                                 "%s: line %d: expecting <what> got \"%s\"\n",
 321                                             fname, lineno, left );
 322                                         acl_usage();
 323                                 }
 324                         }
 325
 326                         if ( a->acl_dn_pat.bv_len != 0 &&
 327                                 strcmp(a->acl_dn_pat.bv_val, "*") == 0 )
 328                         {
 329                                 free( a->acl_dn_pat.bv_val );
 330                                 a->acl_dn_pat.bv_val = NULL;
 331                                 a->acl_dn_pat.bv_len = 0;
 332                         }
 333
 334                         if( a->acl_dn_pat.bv_len != 0 ||
 335                                 ( a->acl_dn_style != ACL_STYLE_REGEX ) )
 336                         {
 337                                 if ( a->acl_dn_style != ACL_STYLE_REGEX ) {
 338                                         struct berval bv;
 339                                         rc = dnNormalize( 0, NULL, NULL, &a->acl_dn_pat, &bv, NULL);
 340                                         if ( rc != LDAP_SUCCESS ) {
 341                                                 fprintf( stderr,
 342                                                         "%s: line %d: bad DN \"%s\" in to DN clause\n",
 343                                                         fname, lineno, a->acl_dn_pat.bv_val );
 344                                                 acl_usage();
 345                                         }
 346                                         free( a->acl_dn_pat.bv_val );
 347                                         a->acl_dn_pat = bv;
 348                                 } else {
 349                                         int e = regcomp( &a->acl_dn_re, a->acl_dn_pat.bv_val,
 350                                                 REG_EXTENDED | REG_ICASE );
 351                                         if ( e ) {
 352                                                 char buf[512];
 353                                                 regerror( e, &a->acl_dn_re, buf, sizeof(buf) );
 354                                                 fprintf( stderr, "%s: line %d: "
 355                                                         "regular expression \"%s\" bad because of %s\n",
 356                                                         fname, lineno, right, buf );
 357                                                 acl_usage();
 358                                         }
 359                                 }
 360                         }
 361
 362                 /* by clause - select who has what access to entries */
 363                 } else if ( strcasecmp( argv[i], "by" ) == 0 ) {
 364                         if ( a == NULL ) {
 365                                 fprintf( stderr, "%s: line %d: "
 366                                         "to clause required before by clause in access line\n",
 367                                     fname, lineno );
 368                                 acl_usage();
 369                         }
 370
 371                         /*
 372                          * by clause consists of <who> and <access>
 373                          */
 374
 375                         b = (Access *) ch_calloc( 1, sizeof(Access) );
 376
 377                         ACL_INVALIDATE( b->a_access_mask );
 378
 379                         if ( ++i == argc ) {
 380                                 fprintf( stderr,
 381                             "%s: line %d: premature eol: expecting <who>\n",
 382                                     fname, lineno );
 383                                 acl_usage();
 384                         }
 385
 386                         /* get <who> */
 387                         for ( ; i < argc; i++ ) {
 388                                 slap_style_t sty = ACL_STYLE_REGEX;
 389                                 char *style_modifier = NULL;
 390                                 int expand = 0;
 391
 392                                 split( argv[i], '=', &left, &right );
 393                                 split( left, '.', &left, &style );
 394                                 if ( style ) {
 395                                         split( style, ',', &style, &style_modifier);
 396                                 }
 397
 398                                 if ( style == NULL || *style == '\0' ||
 399                                         strcasecmp( style, "exact" ) == 0 ||
 400                                         strcasecmp( style, "base" ) == 0 )
 401                                 {
 402                                         sty = ACL_STYLE_BASE;
 403
 404                                 } else if ( strcasecmp( style, "one" ) == 0 ) {
 405                                         sty = ACL_STYLE_ONE;
 406
 407                                 } else if ( strcasecmp( style, "subtree" ) == 0 ||
 408                                         strcasecmp( style, "sub" ) == 0 )
 409                                 {
 410                                         sty = ACL_STYLE_SUBTREE;
 411
 412                                 } else if ( strcasecmp( style, "children" ) == 0 ) {
 413                                         sty = ACL_STYLE_CHILDREN;
 414
 415                                 } else if ( strcasecmp( style, "regex" ) == 0 ) {
 416                                         sty = ACL_STYLE_REGEX;
 417
 418                                 } else {
 419                                         fprintf( stderr,
 420                                                 "%s: line %d: unknown style \"%s\" in by clause\n",
 421                                             fname, lineno, style );
 422                                         acl_usage();
 423                                 }
 424
 425                                 if ( style_modifier &&
 426                                         strcasecmp( style_modifier, "expand" ) == 0 )
 427                                 {
 428                                         expand = 1;
 429                                 }
 430
 431                                 if ( strcasecmp( argv[i], "*" ) == 0 ) {
 432                                         bv.bv_val = ch_strdup( "*" );
 433                                         bv.bv_len = 1;
 434                                         sty = ACL_STYLE_REGEX;
 435
 436                                 } else if ( strcasecmp( argv[i], "anonymous" ) == 0 ) {
 437                                         ber_str2bv("anonymous", sizeof("anonymous")-1, 1, &bv);
 438                                         sty = ACL_STYLE_REGEX;
 439
 440                                 } else if ( strcasecmp( argv[i], "self" ) == 0 ) {
 441                                         ber_str2bv("self", sizeof("self")-1, 1, &bv);
 442                                         sty = ACL_STYLE_REGEX;
 443
 444                                 } else if ( strcasecmp( argv[i], "users" ) == 0 ) {
 445                                         ber_str2bv("users", sizeof("users")-1, 1, &bv);
 446                                         sty = ACL_STYLE_REGEX;
 447
 448                                 } else if ( strcasecmp( left, "dn" ) == 0 ) {
 449                                         if ( sty == ACL_STYLE_REGEX ) {
 450                                                 b->a_dn_style = ACL_STYLE_REGEX;
 451                                                 if( right == NULL ) {
 452                                                         /* no '=' */
 453                                                         ber_str2bv("users",
 454                                                                 sizeof("users")-1,
 455                                                                 1, &bv);
 456                                                 } else if (*right == '\0' ) {
 457                                                         /* dn="" */
 458                                                         ber_str2bv("anonymous",
 459                                                                 sizeof("anonymous")-1,
 460                                                                 1, &bv);
 461                                                 } else if ( strcmp( right, "*" ) == 0 ) {
 462                                                         /* dn=* */
 463                                                         /* any or users?  users for now */
 464                                                         ber_str2bv("users",
 465                                                                 sizeof("users")-1,
 466                                                                 1, &bv);
 467                                                 } else if ( strcmp( right, ".+" ) == 0
 468                                                         || strcmp( right, "^.+" ) == 0
 469                                                         || strcmp( right, ".+$" ) == 0
 470                                                         || strcmp( right, "^.+$" ) == 0
 471                                                         || strcmp( right, ".+$$" ) == 0
 472                                                         || strcmp( right, "^.+$$" ) == 0 )
 473                                                 {
 474                                                         ber_str2bv("users",
 475                                                                 sizeof("users")-1,
 476                                                                 1, &bv);
 477                                                 } else if ( strcmp( right, ".*" ) == 0
 478                                                         || strcmp( right, "^.*" ) == 0
 479                                                         || strcmp( right, ".*$" ) == 0
 480                                                         || strcmp( right, "^.*$" ) == 0
 481                                                         || strcmp( right, ".*$$" ) == 0
 482                                                         || strcmp( right, "^.*$$" ) == 0 )
 483                                                 {
 484                                                         ber_str2bv("*",
 485                                                                 sizeof("*")-1,
 486                                                                 1, &bv);
 487
 488                                                 } else {
 489                                                         acl_regex_normalized_dn( right, &bv );
 490                                                         if ( !ber_bvccmp( &bv, '*' ) ) {
 491                                                                 regtest(fname, lineno, bv.bv_val);
 492                                                         }
 493                                                 }
 494                                         } else if ( right == NULL || *right == '\0' ) {
 495                                                 fprintf( stderr, "%s: line %d: "
 496                                                         "missing \"=\" in (or value after) \"%s\" "
 497                                                         "in by clause\n",
 498                                                     fname, lineno, left );
 499                                                 acl_usage();
 500
 501                                         } else {
 502                                                 ber_str2bv( right, 0, 1, &bv );
 503                                         }
 504
 505                                 } else {
 506                                         bv.bv_val = NULL;
 507                                 }
 508
 509                                 if( bv.bv_val != NULL ) {
 510                                         if( b->a_dn_pat.bv_len != 0 ) {
 511                                                 fprintf( stderr,
 512                                                     "%s: line %d: dn pattern already specified.\n",
 513                                                     fname, lineno );
 514                                                 acl_usage();
 515                                         }
 516
 517                                         if ( sty != ACL_STYLE_REGEX && expand == 0 ) {
 518                                                 rc = dnNormalize(0, NULL, NULL,
 519                                                         &bv, &b->a_dn_pat, NULL);
 520                                                 if ( rc != LDAP_SUCCESS ) {
 521                                                         fprintf( stderr,
 522                                                                 "%s: line %d: bad DN \"%s\" in by DN clause\n",
 523                                                                 fname, lineno, bv.bv_val );
 524                                                         acl_usage();
 525                                                 }
 526                                                 free(bv.bv_val);
 527                                         } else {
 528                                                 b->a_dn_pat = bv;
 529                                         }
 530                                         b->a_dn_style = sty;
 531                                         b->a_dn_expand = expand;
 532                                         continue;
 533                                 }
 534
 535                                 if ( strcasecmp( left, "dnattr" ) == 0 ) {
 536                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 537                                                 fprintf( stderr,
 538                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 539                                                         fname, lineno, left );
 540                                                 acl_usage();
 541                                         }
 542
 543                                         if( b->a_dn_at != NULL ) {
 544                                                 fprintf( stderr,
 545                                                         "%s: line %d: dnattr already specified.\n",
 546                                                         fname, lineno );
 547                                                 acl_usage();
 548                                         }
 549
 550                                         rc = slap_str2ad( right, &b->a_dn_at, &text );
 551
 552                                         if( rc != LDAP_SUCCESS ) {
 553                                                 fprintf( stderr,
 554                                                         "%s: line %d: dnattr \"%s\": %s\n",
 555                                                         fname, lineno, right, text );
 556                                                 acl_usage();
 557                                         }
 558
 559
 560                                         if( !is_at_syntax( b->a_dn_at->ad_type,
 561                                                 SLAPD_DN_SYNTAX ) &&
 562                                                 !is_at_syntax( b->a_dn_at->ad_type,
 563                                                 SLAPD_NAMEUID_SYNTAX ))
 564                                         {
 565                                                 fprintf( stderr,
 566                                                         "%s: line %d: dnattr \"%s\": "
 567                                                         "inappropriate syntax: %s\n",
 568                                                         fname, lineno, right,
 569                                                         b->a_dn_at->ad_type->sat_syntax_oid );
 570                                                 acl_usage();
 571                                         }
 572
 573                                         if( b->a_dn_at->ad_type->sat_equality == NULL ) {
 574                                                 fprintf( stderr,
 575                                                         "%s: line %d: dnattr \"%s\": "
 576                                                         "inappropriate matching (no EQUALITY)\n",
 577                                                         fname, lineno, right );
 578                                                 acl_usage();
 579                                         }
 580
 581                                         continue;
 582                                 }
 583
 584                                 if ( strncasecmp( left, "group", sizeof("group")-1 ) == 0 ) {
 585                                         char *name = NULL;
 586                                         char *value = NULL;
 587
 588                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 589                                                 fprintf( stderr, "%s: line %d: "
 590                                                         "inappropriate style \"%s\" in by clause\n",
 591                                                     fname, lineno, style );
 592                                                 acl_usage();
 593                                         }
 594
 595                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 596                                                 fprintf( stderr, "%s: line %d: "
 597                                                         "missing \"=\" in (or value after) \"%s\" "
 598                                                         "in by clause\n",
 599                                                         fname, lineno, left );
 600                                                 acl_usage();
 601                                         }
 602
 603                                         if( b->a_group_pat.bv_len ) {
 604                                                 fprintf( stderr,
 605                                                         "%s: line %d: group pattern already specified.\n",
 606                                                         fname, lineno );
 607                                                 acl_usage();
 608                                         }
 609
 610                                         /* format of string is
 611                                                 "group/objectClassValue/groupAttrName" */
 612                                         if ((value = strchr(left, '/')) != NULL) {
 613                                                 *value++ = '\0';
 614                                                 if (*value && (name = strchr(value, '/')) != NULL) {
 615                                                         *name++ = '\0';
 616                                                 }
 617                                         }
 618
 619                                         b->a_group_style = sty;
 620                                         if (sty == ACL_STYLE_REGEX) {
 621                                                 acl_regex_normalized_dn( right, &bv );
 622                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 623                                                         regtest(fname, lineno, bv.bv_val);
 624                                                 }
 625                                                 b->a_group_pat = bv;
 626                                         } else {
 627                                                 ber_str2bv( right, 0, 0, &bv );
 628                                                 rc = dnNormalize( 0, NULL, NULL, &bv,
 629                                                         &b->a_group_pat, NULL );
 630                                                 if ( rc != LDAP_SUCCESS ) {
 631                                                         fprintf( stderr,
 632                                                                 "%s: line %d: bad DN \"%s\"\n",
 633                                                                 fname, lineno, right );
 634                                                         acl_usage();
 635                                                 }
 636                                         }
 637
 638                                         if (value && *value) {
 639                                                 b->a_group_oc = oc_find( value );
 640                                                 *--value = '/';
 641
 642                                                 if( b->a_group_oc == NULL ) {
 643                                                         fprintf( stderr,
 644                                                                 "%s: line %d: group objectclass "
 645                                                                 "\"%s\" unknown\n",
 646                                                                 fname, lineno, value );
 647                                                         acl_usage();
 648                                                 }
 649                                         } else {
 650                                                 b->a_group_oc = oc_find(SLAPD_GROUP_CLASS);
 651
 652                                                 if( b->a_group_oc == NULL ) {
 653                                                         fprintf( stderr,
 654                                                                 "%s: line %d: group default objectclass "
 655                                                                 "\"%s\" unknown\n",
 656                                                                 fname, lineno, SLAPD_GROUP_CLASS );
 657                                                         acl_usage();
 658                                                 }
 659                                         }
 660
 661                                         if( is_object_subclass( slap_schema.si_oc_referral,
 662                                                 b->a_group_oc ))
 663                                         {
 664                                                 fprintf( stderr,
 665                                                         "%s: line %d: group objectclass \"%s\" "
 666                                                         "is subclass of referral\n",
 667                                                         fname, lineno, value );
 668                                                 acl_usage();
 669                                         }
 670
 671                                         if( is_object_subclass( slap_schema.si_oc_alias,
 672                                                 b->a_group_oc ))
 673                                         {
 674                                                 fprintf( stderr,
 675                                                         "%s: line %d: group objectclass \"%s\" "
 676                                                         "is subclass of alias\n",
 677                                                         fname, lineno, value );
 678                                                 acl_usage();
 679                                         }
 680
 681                                         if (name && *name) {
 682                                                 rc = slap_str2ad( name, &b->a_group_at, &text );
 683
 684                                                 if( rc != LDAP_SUCCESS ) {
 685                                                         fprintf( stderr,
 686                                                                 "%s: line %d: group \"%s\": %s\n",
 687                                                                 fname, lineno, right, text );
 688                                                         acl_usage();
 689                                                 }
 690                                                 *--name = '/';
 691                                         } else {
 692                                                 rc = slap_str2ad( SLAPD_GROUP_ATTR, &b->a_group_at, &text );
 693
 694                                                 if( rc != LDAP_SUCCESS ) {
 695                                                         fprintf( stderr,
 696                                                                 "%s: line %d: group \"%s\": %s\n",
 697                                                                 fname, lineno, SLAPD_GROUP_ATTR, text );
 698                                                         acl_usage();
 699                                                 }
 700                                         }
 701
 702                                         if( !is_at_syntax( b->a_group_at->ad_type,
 703                                                 SLAPD_DN_SYNTAX ) &&
 704                                             !is_at_syntax( b->a_group_at->ad_type,
 705                                                 SLAPD_NAMEUID_SYNTAX ) &&
 706                                                 !is_at_subtype( b->a_group_at->ad_type, slap_schema.si_ad_labeledURI->ad_type ))
 707                                         {
 708                                                 fprintf( stderr,
 709                                                         "%s: line %d: group \"%s\": inappropriate syntax: %s\n",
 710                                                         fname, lineno, right,
 711                                                         b->a_group_at->ad_type->sat_syntax_oid );
 712                                                 acl_usage();
 713                                         }
 714
 715
 716                                         {
 717                                                 int rc;
 718                                                 struct berval vals[2];
 719
 720                                                 vals[0].bv_val = b->a_group_oc->soc_oid;
 721                                                 vals[0].bv_len = strlen(vals[0].bv_val);
 722                                                 vals[1].bv_val = NULL;
 723
 724
 725                                                 rc = oc_check_allowed( b->a_group_at->ad_type,
 726                                                         vals, NULL );
 727
 728                                                 if( rc != 0 ) {
 729                                                         fprintf( stderr, "%s: line %d: "
 730                                                                 "group: \"%s\" not allowed by \"%s\"\n",
 731                                                                 fname, lineno,
 732                                                                 b->a_group_at->ad_cname.bv_val,
 733                                                                 b->a_group_oc->soc_oid );
 734                                                         acl_usage();
 735                                                 }
 736                                         }
 737                                         continue;
 738                                 }
 739
 740                                 if ( strcasecmp( left, "peername" ) == 0 ) {
 741                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 742                                                 fprintf( stderr, "%s: line %d: "
 743                                                         "inappropriate style \"%s\" in by clause\n",
 744                                                     fname, lineno, style );
 745                                                 acl_usage();
 746                                         }
 747
 748                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 749                                                 fprintf( stderr, "%s: line %d: "
 750                                                         "missing \"=\" in (or value after) \"%s\" "
 751                                                         "in by clause\n",
 752                                                         fname, lineno, left );
 753                                                 acl_usage();
 754                                         }
 755
 756                                         if( b->a_peername_pat.bv_len ) {
 757                                                 fprintf( stderr, "%s: line %d: "
 758                                                         "peername pattern already specified.\n",
 759                                                         fname, lineno );
 760                                                 acl_usage();
 761                                         }
 762
 763                                         b->a_peername_style = sty;
 764                                         if (sty == ACL_STYLE_REGEX) {
 765                                                 acl_regex_normalized_dn( right, &bv );
 766                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 767                                                         regtest(fname, lineno, bv.bv_val);
 768                                                 }
 769                                                 b->a_peername_pat = bv;
 770                                         } else {
 771                                                 ber_str2bv( right, 0, 1, &b->a_peername_pat );
 772                                         }
 773                                         continue;
 774                                 }
 775
 776                                 if ( strcasecmp( left, "sockname" ) == 0 ) {
 777                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 778                                                 fprintf( stderr, "%s: line %d: "
 779                                                         "inappropriate style \"%s\" in by clause\n",
 780                                                     fname, lineno, style );
 781                                                 acl_usage();
 782                                         }
 783
 784                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 785                                                 fprintf( stderr, "%s: line %d: "
 786                                                         "missing \"=\" in (or value after) \"%s\" "
 787                                                         "in by clause\n",
 788                                                         fname, lineno, left );
 789                                                 acl_usage();
 790                                         }
 791
 792                                         if( b->a_sockname_pat.bv_len ) {
 793                                                 fprintf( stderr, "%s: line %d: "
 794                                                         "sockname pattern already specified.\n",
 795                                                         fname, lineno );
 796                                                 acl_usage();
 797                                         }
 798
 799                                         b->a_sockname_style = sty;
 800                                         if (sty == ACL_STYLE_REGEX) {
 801                                                 acl_regex_normalized_dn( right, &bv );
 802                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 803                                                         regtest(fname, lineno, bv.bv_val);
 804                                                 }
 805                                                 b->a_sockname_pat = bv;
 806                                         } else {
 807                                                 ber_str2bv( right, 0, 1, &b->a_sockname_pat );
 808                                         }
 809                                         continue;
 810                                 }
 811
 812                                 if ( strcasecmp( left, "domain" ) == 0 ) {
 813                                         switch ( sty ) {
 814                                         case ACL_STYLE_REGEX:
 815                                         case ACL_STYLE_BASE:
 816                                         case ACL_STYLE_SUBTREE:
 817                                                 break;
 818
 819                                         default:
 820                                                 fprintf( stderr,
 821                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 822                                                     fname, lineno, style );
 823                                                 acl_usage();
 824                                         }
 825
 826                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 827                                                 fprintf( stderr,
 828                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 829                                                         fname, lineno, left );
 830                                                 acl_usage();
 831                                         }
 832
 833                                         if( b->a_domain_pat.bv_len ) {
 834                                                 fprintf( stderr,
 835                                                         "%s: line %d: domain pattern already specified.\n",
 836                                                         fname, lineno );
 837                                                 acl_usage();
 838                                         }
 839
 840                                         b->a_domain_style = sty;
 841                                         b->a_domain_expand = expand;
 842                                         if (sty == ACL_STYLE_REGEX) {
 843                                                 acl_regex_normalized_dn( right, &bv );
 844                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 845                                                         regtest(fname, lineno, bv.bv_val);
 846                                                 }
 847                                                 b->a_domain_pat = bv;
 848                                         } else {
 849                                                 ber_str2bv( right, 0, 1, &b->a_domain_pat );
 850                                         }
 851                                         continue;
 852                                 }
 853
 854                                 if ( strcasecmp( left, "sockurl" ) == 0 ) {
 855                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 856                                                 fprintf( stderr,
 857                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 858                                                     fname, lineno, style );
 859                                                 acl_usage();
 860                                         }
 861
 862                                         if ( right == NULL || right[ 0 ] == '\0' ) {
 863                                                 fprintf( stderr,
 864                                                         "%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
 865                                                         fname, lineno, left );
 866                                                 acl_usage();
 867                                         }
 868
 869                                         if( b->a_sockurl_pat.bv_len ) {
 870                                                 fprintf( stderr,
 871                                                         "%s: line %d: sockurl pattern already specified.\n",
 872                                                         fname, lineno );
 873                                                 acl_usage();
 874                                         }
 875
 876                                         b->a_sockurl_style = sty;
 877                                         if (sty == ACL_STYLE_REGEX) {
 878                                                 acl_regex_normalized_dn( right, &bv );
 879                                                 if ( !ber_bvccmp( &bv, '*' ) ) {
 880                                                         regtest(fname, lineno, bv.bv_val);
 881                                                 }
 882                                                 b->a_sockurl_pat = bv;
 883                                         } else {
 884                                                 ber_str2bv( right, 0, 1, &b->a_sockurl_pat );
 885                                         }
 886                                         continue;
 887                                 }
 888
 889                                 if ( strcasecmp( left, "set" ) == 0 ) {
 890                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 891                                                 fprintf( stderr,
 892                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 893                                                     fname, lineno, style );
 894                                                 acl_usage();
 895                                         }
 896
 897                                         if( b->a_set_pat.bv_len != 0 ) {
 898                                                 fprintf( stderr,
 899                                                         "%s: line %d: set attribute already specified.\n",
 900                                                         fname, lineno );
 901                                                 acl_usage();
 902                                         }
 903
 904                                         if ( right == NULL || *right == '\0' ) {
 905                                                 fprintf( stderr,
 906                                                         "%s: line %d: no set is defined\n",
 907                                                         fname, lineno );
 908                                                 acl_usage();
 909                                         }
 910
 911                                         b->a_set_style = sty;
 912                                         ber_str2bv( right, 0, 1, &b->a_set_pat );
 913
 914                                         continue;
 915                                 }
 916
 917 #ifdef SLAPD_ACI_ENABLED
 918                                 if ( strcasecmp( left, "aci" ) == 0 ) {
 919                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 920                                                 fprintf( stderr,
 921                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 922                                                     fname, lineno, style );
 923                                                 acl_usage();
 924                                         }
 925
 926                                         if( b->a_aci_at != NULL ) {
 927                                                 fprintf( stderr,
 928                                                         "%s: line %d: aci attribute already specified.\n",
 929                                                         fname, lineno );
 930                                                 acl_usage();
 931                                         }
 932
 933                                         if ( right != NULL && *right != '\0' ) {
 934                                                 rc = slap_str2ad( right, &b->a_aci_at, &text );
 935
 936                                                 if( rc != LDAP_SUCCESS ) {
 937                                                         fprintf( stderr,
 938                                                                 "%s: line %d: aci \"%s\": %s\n",
 939                                                                 fname, lineno, right, text );
 940                                                         acl_usage();
 941                                                 }
 942
 943                                         } else {
 944                                                 b->a_aci_at = slap_schema.si_ad_aci;
 945                                         }
 946
 947                                         if( !is_at_syntax( b->a_aci_at->ad_type,
 948                                                 SLAPD_ACI_SYNTAX) )
 949                                         {
 950                                                 fprintf( stderr,
 951                                                         "%s: line %d: aci \"%s\": inappropriate syntax: %s\n",
 952                                                         fname, lineno, right,
 953                                                         b->a_aci_at->ad_type->sat_syntax_oid );
 954                                                 acl_usage();
 955                                         }
 956
 957                                         continue;
 958                                 }
 959 #endif /* SLAPD_ACI_ENABLED */
 960
 961                                 if ( strcasecmp( left, "ssf" ) == 0 ) {
 962                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 963                                                 fprintf( stderr,
 964                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 965                                                     fname, lineno, style );
 966                                                 acl_usage();
 967                                         }
 968
 969                                         if( b->a_authz.sai_ssf ) {
 970                                                 fprintf( stderr,
 971                                                         "%s: line %d: ssf attribute already specified.\n",
 972                                                         fname, lineno );
 973                                                 acl_usage();
 974                                         }
 975
 976                                         if ( right == NULL || *right == '\0' ) {
 977                                                 fprintf( stderr,
 978                                                         "%s: line %d: no ssf is defined\n",
 979                                                         fname, lineno );
 980                                                 acl_usage();
 981                                         }
 982
 983                                         b->a_authz.sai_ssf = atoi( right );
 984
 985                                         if( !b->a_authz.sai_ssf ) {
 986                                                 fprintf( stderr,
 987                                                         "%s: line %d: invalid ssf value (%s)\n",
 988                                                         fname, lineno, right );
 989                                                 acl_usage();
 990                                         }
 991                                         continue;
 992                                 }
 993
 994                                 if ( strcasecmp( left, "transport_ssf" ) == 0 ) {
 995                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
 996                                                 fprintf( stderr,
 997                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
 998                                                     fname, lineno, style );
 999                                                 acl_usage();
1000                                         }
1001
1002                                         if( b->a_authz.sai_transport_ssf ) {
1003                                                 fprintf( stderr,
1004                                                         "%s: line %d: transport_ssf attribute already specified.\n",
1005                                                         fname, lineno );
1006                                                 acl_usage();
1007                                         }
1008
1009                                         if ( right == NULL || *right == '\0' ) {
1010                                                 fprintf( stderr,
1011                                                         "%s: line %d: no transport_ssf is defined\n",
1012                                                         fname, lineno );
1013                                                 acl_usage();
1014                                         }
1015
1016                                         b->a_authz.sai_transport_ssf = atoi( right );
1017
1018                                         if( !b->a_authz.sai_transport_ssf ) {
1019                                                 fprintf( stderr,
1020                                                         "%s: line %d: invalid transport_ssf value (%s)\n",
1021                                                         fname, lineno, right );
1022                                                 acl_usage();
1023                                         }
1024                                         continue;
1025                                 }
1026
1027                                 if ( strcasecmp( left, "tls_ssf" ) == 0 ) {
1028                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
1029                                                 fprintf( stderr,
1030                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
1031                                                     fname, lineno, style );
1032                                                 acl_usage();
1033                                         }
1034
1035                                         if( b->a_authz.sai_tls_ssf ) {
1036                                                 fprintf( stderr,
1037                                                         "%s: line %d: tls_ssf attribute already specified.\n",
1038                                                         fname, lineno );
1039                                                 acl_usage();
1040                                         }
1041
1042                                         if ( right == NULL || *right == '\0' ) {
1043                                                 fprintf( stderr,
1044                                                         "%s: line %d: no tls_ssf is defined\n",
1045                                                         fname, lineno );
1046                                                 acl_usage();
1047                                         }
1048
1049                                         b->a_authz.sai_tls_ssf = atoi( right );
1050
1051                                         if( !b->a_authz.sai_tls_ssf ) {
1052                                                 fprintf( stderr,
1053                                                         "%s: line %d: invalid tls_ssf value (%s)\n",
1054                                                         fname, lineno, right );
1055                                                 acl_usage();
1056                                         }
1057                                         continue;
1058                                 }
1059
1060                                 if ( strcasecmp( left, "sasl_ssf" ) == 0 ) {
1061                                         if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
1062                                                 fprintf( stderr,
1063                                                         "%s: line %d: inappropriate style \"%s\" in by clause\n",
1064                                                     fname, lineno, style );
1065                                                 acl_usage();
1066                                         }
1067
1068                                         if( b->a_authz.sai_sasl_ssf ) {
1069                                                 fprintf( stderr,
1070                                                         "%s: line %d: sasl_ssf attribute already specified.\n",
1071                                                         fname, lineno );
1072                                                 acl_usage();
1073                                         }
1074
1075                                         if ( right == NULL || *right == '\0' ) {
1076                                                 fprintf( stderr,
1077                                                         "%s: line %d: no sasl_ssf is defined\n",
1078                                                         fname, lineno );
1079                                                 acl_usage();
1080                                         }
1081
1082                                         b->a_authz.sai_sasl_ssf = atoi( right );
1083
1084                                         if( !b->a_authz.sai_sasl_ssf ) {
1085                                                 fprintf( stderr,
1086                                                         "%s: line %d: invalid sasl_ssf value (%s)\n",
1087                                                         fname, lineno, right );
1088                                                 acl_usage();
1089                                         }
1090                                         continue;
1091                                 }
1092
1093                                 if( right != NULL ) {
1094                                         /* unsplit */
1095                                         right[-1] = '=';
1096                                 }
1097                                 break;
1098                         }
1099
1100                         if( i == argc || ( strcasecmp( left, "stop" ) == 0 )) {
1101                                 /* out of arguments or plain stop */
1102
1103                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
1104                                 b->a_type = ACL_STOP;
1105
1106                                 access_append( &a->acl_access, b );
1107                                 continue;
1108                         }
1109
1110                         if( strcasecmp( left, "continue" ) == 0 ) {
1111                                 /* plain continue */
1112
1113                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
1114                                 b->a_type = ACL_CONTINUE;
1115
1116                                 access_append( &a->acl_access, b );
1117                                 continue;
1118                         }
1119
1120                         if( strcasecmp( left, "break" ) == 0 ) {
1121                                 /* plain continue */
1122
1123                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
1124                                 b->a_type = ACL_BREAK;
1125
1126                                 access_append( &a->acl_access, b );
1127                                 continue;
1128                         }
1129
1130                         if ( strcasecmp( left, "by" ) == 0 ) {
1131                                 /* we've gone too far */
1132                                 --i;
1133                                 ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
1134                                 b->a_type = ACL_STOP;
1135
1136                                 access_append( &a->acl_access, b );
1137                                 continue;
1138                         }
1139
1140                         /* get <access> */
1141                         if( strncasecmp( left, "self", 4 ) == 0 ) {
1142                                 b->a_dn_self = 1;
1143                                 ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( &left[4] ) );
1144
1145                         } else {
1146                                 ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( left ) );
1147                         }
1148
1149                         if( ACL_IS_INVALID( b->a_access_mask ) ) {
1150                                 fprintf( stderr,
1151                                         "%s: line %d: expecting <access> got \"%s\"\n",
1152                                         fname, lineno, left );
1153                                 acl_usage();
1154                         }
1155
1156                         b->a_type = ACL_STOP;
1157
1158                         if( ++i == argc ) {
1159                                 /* out of arguments or plain stop */
1160                                 access_append( &a->acl_access, b );
1161                                 continue;
1162                         }
1163
1164                         if( strcasecmp( argv[i], "continue" ) == 0 ) {
1165                                 /* plain continue */
1166                                 b->a_type = ACL_CONTINUE;
1167
1168                         } else if( strcasecmp( argv[i], "break" ) == 0 ) {
1169                                 /* plain continue */
1170                                 b->a_type = ACL_BREAK;
1171
1172                         } else if ( strcasecmp( argv[i], "stop" ) != 0 ) {
1173                                 /* gone to far */
1174                                 i--;
1175                         }
1176
1177                         access_append( &a->acl_access, b );
1178
1179                 } else {
1180                         fprintf( stderr,
1181                     "%s: line %d: expecting \"to\" or \"by\" got \"%s\"\n",
1182                             fname, lineno, argv[i] );
1183                         acl_usage();
1184                 }
1185         }
1186
1187         /* if we have no real access clause, complain and do nothing */
1188         if ( a == NULL ) {
1189                         fprintf( stderr,
1190                                 "%s: line %d: warning: no access clause(s) specified in access line\n",
1191                             fname, lineno );
1192
1193         } else {
1194 #ifdef LDAP_DEBUG
1195                 if (ldap_debug & LDAP_DEBUG_ACL)
1196                         print_acl(be, a);
1197 #endif
1198
1199                 if ( a->acl_access == NULL ) {
1200                         fprintf( stderr,
1201                         "%s: line %d: warning: no by clause(s) specified in access line\n",
1202                             fname, lineno );
1203                 }
1204
1205                 if ( be != NULL ) {
1206                         acl_append( &be->be_acl, a );
1207                 } else {
1208                         acl_append( &global_acl, a );
1209                 }
1210         }
1211 }
1212
1213 char *
1214 accessmask2str( slap_mask_t mask, char *buf )
1215 {
1216         int none=1;
1217         char *ptr = buf;
1218
1219         assert( buf != NULL );
1220
1221         if ( ACL_IS_INVALID( mask ) ) {
1222                 return "invalid";
1223         }
1224
1225         buf[0] = '\0';
1226
1227         if ( ACL_IS_LEVEL( mask ) ) {
1228                 if ( ACL_LVL_IS_NONE(mask) ) {
1229                         ptr = lutil_strcopy( ptr, "none" );
1230
1231                 } else if ( ACL_LVL_IS_AUTH(mask) ) {
1232                         ptr = lutil_strcopy( ptr, "auth" );
1233
1234                 } else if ( ACL_LVL_IS_COMPARE(mask) ) {
1235                         ptr = lutil_strcopy( ptr, "compare" );
1236
1237                 } else if ( ACL_LVL_IS_SEARCH(mask) ) {
1238                         ptr = lutil_strcopy( ptr, "search" );
1239
1240                 } else if ( ACL_LVL_IS_READ(mask) ) {
1241                         ptr = lutil_strcopy( ptr, "read" );
1242
1243                 } else if ( ACL_LVL_IS_WRITE(mask) ) {
1244                         ptr = lutil_strcopy( ptr, "write" );
1245                 } else {
1246                         ptr = lutil_strcopy( ptr, "unknown" );
1247                 }
1248
1249                 *ptr++ = '(';
1250         }
1251
1252         if( ACL_IS_ADDITIVE( mask ) ) {
1253                 *ptr++ = '+';
1254
1255         } else if( ACL_IS_SUBTRACTIVE( mask ) ) {
1256                 *ptr++ = '-';
1257
1258         } else {
1259                 *ptr++ = '=';
1260         }
1261
1262         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_WRITE) ) {
1263                 none = 0;
1264                 *ptr++ = 'w';
1265         }
1266
1267         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_READ) ) {
1268                 none = 0;
1269                 *ptr++ = 'r';
1270         }
1271
1272         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_SEARCH) ) {
1273                 none = 0;
1274                 *ptr++ = 's';
1275         }
1276
1277         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_COMPARE) ) {
1278                 none = 0;
1279                 *ptr++ = 'c';
1280         }
1281
1282         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_AUTH) ) {
1283                 none = 0;
1284                 *ptr++ = 'x';
1285         }
1286
1287         if ( none && ACL_PRIV_ISSET(mask, ACL_PRIV_NONE) ) {
1288                 none = 0;
1289                 *ptr++ = 'n';
1290         }
1291
1292         if ( none ) {
1293                 *ptr++ = '0';
1294         }
1295
1296         if ( ACL_IS_LEVEL( mask ) ) {
1297                 *ptr++ = ')';
1298         }
1299
1300         *ptr = '\0';
1301
1302         return buf;
1303 }
1304
1305 slap_mask_t
1306 str2accessmask( const char *str )
1307 {
1308         slap_mask_t     mask;
1309
1310         if( !ASCII_ALPHA(str[0]) ) {
1311                 int i;
1312
1313                 if ( str[0] == '=' ) {
1314                         ACL_INIT(mask);
1315
1316                 } else if( str[0] == '+' ) {
1317                         ACL_PRIV_ASSIGN(mask, ACL_PRIV_ADDITIVE);
1318
1319                 } else if( str[0] == '-' ) {
1320                         ACL_PRIV_ASSIGN(mask, ACL_PRIV_SUBSTRACTIVE);
1321
1322                 } else {
1323                         ACL_INVALIDATE(mask);
1324                         return mask;
1325                 }
1326
1327                 for( i=1; str[i] != '\0'; i++ ) {
1328                         if( TOLOWER((unsigned char) str[i]) == 'w' ) {
1329                                 ACL_PRIV_SET(mask, ACL_PRIV_WRITE);
1330
1331                         } else if( TOLOWER((unsigned char) str[i]) == 'r' ) {
1332                                 ACL_PRIV_SET(mask, ACL_PRIV_READ);
1333
1334                         } else if( TOLOWER((unsigned char) str[i]) == 's' ) {
1335                                 ACL_PRIV_SET(mask, ACL_PRIV_SEARCH);
1336
1337                         } else if( TOLOWER((unsigned char) str[i]) == 'c' ) {
1338                                 ACL_PRIV_SET(mask, ACL_PRIV_COMPARE);
1339
1340                         } else if( TOLOWER((unsigned char) str[i]) == 'x' ) {
1341                                 ACL_PRIV_SET(mask, ACL_PRIV_AUTH);
1342
1343                         } else if( str[i] != '0' ) {
1344                                 ACL_INVALIDATE(mask);
1345                                 return mask;
1346                         }
1347                 }
1348
1349                 return mask;
1350         }
1351
1352         if ( strcasecmp( str, "none" ) == 0 ) {
1353                 ACL_LVL_ASSIGN_NONE(mask);
1354
1355         } else if ( strcasecmp( str, "auth" ) == 0 ) {
1356                 ACL_LVL_ASSIGN_AUTH(mask);
1357
1358         } else if ( strcasecmp( str, "compare" ) == 0 ) {
1359                 ACL_LVL_ASSIGN_COMPARE(mask);
1360
1361         } else if ( strcasecmp( str, "search" ) == 0 ) {
1362                 ACL_LVL_ASSIGN_SEARCH(mask);
1363
1364         } else if ( strcasecmp( str, "read" ) == 0 ) {
1365                 ACL_LVL_ASSIGN_READ(mask);
1366
1367         } else if ( strcasecmp( str, "write" ) == 0 ) {
1368                 ACL_LVL_ASSIGN_WRITE(mask);
1369
1370         } else {
1371                 ACL_INVALIDATE( mask );
1372         }
1373
1374         return mask;
1375 }
1376
1377 static void
1378 acl_usage( void )
1379 {
1380         fprintf( stderr, "%s%s\n",
1381                 "<access clause> ::= access to <what> "
1382                                 "[ by <who> <access> [ <control> ] ]+ \n"
1383                 "<what> ::= * | [dn[.<dnstyle>]=<DN>] [filter=<filter>] [attrs=<attrlist>]\n"
1384                 "<attrlist> ::= <attr> [val[.<style>]=<value>] | <attr> , <attrlist>\n"
1385                 "<attr> ::= <attrname> | entry | children\n"
1386                 "<who> ::= [ * | anonymous | users | self | dn[.<dnstyle>]=<DN> ]\n"
1387                         "\t[dnattr=<attrname>]\n"
1388                         "\t[group[/<objectclass>[/<attrname>]][.<style>]=<group>]\n"
1389                         "\t[peername[.<style>]=<peer>] [sockname[.<style>]=<name>]\n",
1390                         "\t[domain[.<style>]=<domain>] [sockurl[.<style>]=<url>]\n"
1391 #ifdef SLAPD_ACI_ENABLED
1392                         "\t[aci=<attrname>]\n"
1393 #endif
1394                         "\t[ssf=<n>] [transport_ssf=<n>] [tls_ssf=<n>] [sasl_ssf=<n>]\n"
1395                 "<dnstyle> ::= base | exact | one | subtree | children | regex\n"
1396                 "<style> ::= regex | base | exact\n"
1397                 "<access> ::= [self]{<level>|<priv>}\n"
1398                 "<level> ::= none | auth | compare | search | read | write\n"
1399                 "<priv> ::= {=|+|-}{w|r|s|c|x}+\n"
1400                 "<control> ::= [ stop | continue | break ]\n"
1401         );
1402         exit( EXIT_FAILURE );
1403 }
1404
1405 /*
1406  * Set pattern to a "normalized" DN from src.
1407  * At present it simply eats the (optional) space after
1408  * a RDN separator (,)
1409  * Eventually will evolve in a more complete normalization
1410  */
1411 static void
1412 acl_regex_normalized_dn(
1413         const char *src,
1414         struct berval *pattern
1415 )
1416 {
1417         char *str, *p;
1418         ber_len_t len;
1419
1420         str = ch_strdup( src );
1421         len = strlen( src );
1422
1423         for ( p = str; p && p[ 0 ]; p++ ) {
1424                 /* escape */
1425                 if ( p[ 0 ] == '\\' && p[ 1 ] ) {
1426                         /*
1427                          * if escaping a hex pair we should
1428                          * increment p twice; however, in that
1429                          * case the second hex number does
1430                          * no harm
1431                          */
1432                         p++;
1433                 }
1434
1435                 if ( p[ 0 ] == ',' ) {
1436                         if ( p[ 1 ] == ' ' ) {
1437                                 char *q;
1438
1439                                 /*
1440                                  * too much space should be
1441                                  * an error if we are pedantic
1442                                  */
1443                                 for ( q = &p[ 2 ]; q[ 0 ] == ' '; q++ ) {
1444                                         /* DO NOTHING */ ;
1445                                 }
1446                                 AC_MEMCPY( p+1, q, len-(q-str)+1);
1447                         }
1448                 }
1449         }
1450         pattern->bv_val = str;
1451         pattern->bv_len = p-str;
1452
1453         return;
1454 }
1455
1456 static void
1457 split(
1458     char        *line,
1459     int         splitchar,
1460     char        **left,
1461     char        **right
1462 )
1463 {
1464         *left = line;
1465         if ( (*right = strchr( line, splitchar )) != NULL ) {
1466                 *((*right)++) = '\0';
1467         }
1468 }
1469
1470 static void
1471 access_append( Access **l, Access *a )
1472 {
1473         for ( ; *l != NULL; l = &(*l)->a_next )
1474                 ;       /* NULL */
1475
1476         *l = a;
1477 }
1478
1479 void
1480 acl_append( AccessControl **l, AccessControl *a )
1481 {
1482         for ( ; *l != NULL; l = &(*l)->acl_next )
1483                 ;       /* NULL */
1484
1485         *l = a;
1486 }
1487
1488 static void
1489 access_free( Access *a )
1490 {
1491         if ( a->a_dn_pat.bv_val )
1492                 free ( a->a_dn_pat.bv_val );
1493         if ( a->a_peername_pat.bv_val )
1494                 free ( a->a_peername_pat.bv_val );
1495         if ( a->a_sockname_pat.bv_val )
1496                 free ( a->a_sockname_pat.bv_val );
1497         if ( a->a_domain_pat.bv_val )
1498                 free ( a->a_domain_pat.bv_val );
1499         if ( a->a_sockurl_pat.bv_val )
1500                 free ( a->a_sockurl_pat.bv_val );
1501         if ( a->a_set_pat.bv_len )
1502                 free ( a->a_set_pat.bv_val );
1503         if ( a->a_group_pat.bv_len )
1504                 free ( a->a_group_pat.bv_val );
1505         free( a );
1506 }
1507
1508 void
1509 acl_free( AccessControl *a )
1510 {
1511         Access *n;
1512         AttributeName *an;
1513
1514         if ( a->acl_filter )
1515                 filter_free( a->acl_filter );
1516         if ( a->acl_dn_pat.bv_len )
1517                 free ( a->acl_dn_pat.bv_val );
1518         if ( a->acl_attrs ) {
1519                 for ( an = a->acl_attrs; an->an_name.bv_val; an++ ) {
1520                         free( an->an_name.bv_val );
1521                 }
1522                 free( a->acl_attrs );
1523         }
1524         for (; a->acl_access; a->acl_access = n) {
1525                 n = a->acl_access->a_next;
1526                 access_free( a->acl_access );
1527         }
1528         free( a );
1529 }
1530
1531 /* Because backend_startup uses acl_append to tack on the global_acl to
1532  * the end of each backend's acl, we cannot just take one argument and
1533  * merrily free our way to the end of the list. backend_destroy calls us
1534  * with the be_acl in arg1, and global_acl in arg2 to give us a stopping
1535  * point. config_destroy calls us with global_acl in arg1 and NULL in
1536  * arg2, so we then proceed to polish off the global_acl.
1537  */
1538 void
1539 acl_destroy( AccessControl *a, AccessControl *end )
1540 {
1541         AccessControl *n;
1542
1543         for (; a && a!= end; a=n) {
1544                 n = a->acl_next;
1545                 acl_free( a );
1546         }
1547 }
1548
1549 char *
1550 access2str( slap_access_t access )
1551 {
1552         if ( access == ACL_NONE ) {
1553                 return "none";
1554
1555         } else if ( access == ACL_AUTH ) {
1556                 return "auth";
1557
1558         } else if ( access == ACL_COMPARE ) {
1559                 return "compare";
1560
1561         } else if ( access == ACL_SEARCH ) {
1562                 return "search";
1563
1564         } else if ( access == ACL_READ ) {
1565                 return "read";
1566
1567         } else if ( access == ACL_WRITE ) {
1568                 return "write";
1569         }
1570
1571         return "unknown";
1572 }
1573
1574 slap_access_t
1575 str2access( const char *str )
1576 {
1577         if ( strcasecmp( str, "none" ) == 0 ) {
1578                 return ACL_NONE;
1579
1580         } else if ( strcasecmp( str, "auth" ) == 0 ) {
1581                 return ACL_AUTH;
1582
1583         } else if ( strcasecmp( str, "compare" ) == 0 ) {
1584                 return ACL_COMPARE;
1585
1586         } else if ( strcasecmp( str, "search" ) == 0 ) {
1587                 return ACL_SEARCH;
1588
1589         } else if ( strcasecmp( str, "read" ) == 0 ) {
1590                 return ACL_READ;
1591
1592         } else if ( strcasecmp( str, "write" ) == 0 ) {
1593                 return ACL_WRITE;
1594         }
1595
1596         return( ACL_INVALID_ACCESS );
1597 }
1598
1599 #ifdef LDAP_DEBUG
1600
1601 static void
1602 print_access( Access *b )
1603 {
1604         char maskbuf[ACCESSMASK_MAXLEN];
1605
1606         fprintf( stderr, "\tby" );
1607
1608         if ( b->a_dn_pat.bv_len != 0 ) {
1609                 if( strcmp(b->a_dn_pat.bv_val, "*") == 0
1610                         || strcmp(b->a_dn_pat.bv_val, "users") == 0
1611                         || strcmp(b->a_dn_pat.bv_val, "anonymous") == 0
1612                         || strcmp(b->a_dn_pat.bv_val, "self") == 0 )
1613                 {
1614                         fprintf( stderr, " %s", b->a_dn_pat.bv_val );
1615
1616                 } else {
1617                         fprintf( stderr, " dn.%s=\"%s\"",
1618                                 style_strings[b->a_dn_style], b->a_dn_pat.bv_val );
1619                 }
1620         }
1621
1622         if ( b->a_dn_at != NULL ) {
1623                 fprintf( stderr, " dnattr=%s", b->a_dn_at->ad_cname.bv_val );
1624         }
1625
1626         if ( b->a_group_pat.bv_len ) {
1627                 fprintf( stderr, " group/%s/%s.%s=\"%s\"",
1628                         b->a_group_oc ? b->a_group_oc->soc_cname.bv_val : "groupOfNames",
1629                         b->a_group_at ? b->a_group_at->ad_cname.bv_val : "member",
1630                         style_strings[b->a_group_style],
1631                         b->a_group_pat.bv_val );
1632     }
1633
1634         if ( b->a_peername_pat.bv_len != 0 ) {
1635                 fprintf( stderr, " peername=\"%s\"", b->a_peername_pat.bv_val );
1636         }
1637
1638         if ( b->a_sockname_pat.bv_len != 0 ) {
1639                 fprintf( stderr, " sockname=\"%s\"", b->a_sockname_pat.bv_val );
1640         }
1641
1642         if ( b->a_domain_pat.bv_len != 0 ) {
1643                 fprintf( stderr, " domain=%s", b->a_domain_pat.bv_val );
1644         }
1645
1646         if ( b->a_sockurl_pat.bv_len != 0 ) {
1647                 fprintf( stderr, " sockurl=\"%s\"", b->a_sockurl_pat.bv_val );
1648         }
1649
1650 #ifdef SLAPD_ACI_ENABLED
1651         if ( b->a_aci_at != NULL ) {
1652                 fprintf( stderr, " aci=%s", b->a_aci_at->ad_cname.bv_val );
1653         }
1654 #endif
1655
1656         /* Security Strength Factors */
1657         if ( b->a_authz.sai_ssf ) {
1658                 fprintf( stderr, " ssf=%u",
1659                         b->a_authz.sai_ssf );
1660         }
1661         if ( b->a_authz.sai_transport_ssf ) {
1662                 fprintf( stderr, " transport_ssf=%u",
1663                         b->a_authz.sai_transport_ssf );
1664         }
1665         if ( b->a_authz.sai_tls_ssf ) {
1666                 fprintf( stderr, " tls_ssf=%u",
1667                         b->a_authz.sai_tls_ssf );
1668         }
1669         if ( b->a_authz.sai_sasl_ssf ) {
1670                 fprintf( stderr, " sasl_ssf=%u",
1671                         b->a_authz.sai_sasl_ssf );
1672         }
1673
1674         fprintf( stderr, " %s%s",
1675                 b->a_dn_self ? "self" : "",
1676                 accessmask2str( b->a_access_mask, maskbuf ) );
1677
1678         if( b->a_type == ACL_BREAK ) {
1679                 fprintf( stderr, " break" );
1680
1681         } else if( b->a_type == ACL_CONTINUE ) {
1682                 fprintf( stderr, " continue" );
1683
1684         } else if( b->a_type != ACL_STOP ) {
1685                 fprintf( stderr, " unknown-control" );
1686         }
1687
1688         fprintf( stderr, "\n" );
1689 }
1690
1691
1692 static void
1693 print_acl( Backend *be, AccessControl *a )
1694 {
1695         int             to = 0;
1696         Access  *b;
1697
1698         fprintf( stderr, "%s ACL: access to",
1699                 be == NULL ? "Global" : "Backend" );
1700
1701         if ( a->acl_dn_pat.bv_len != 0 ) {
1702                 to++;
1703                 fprintf( stderr, " dn.%s=\"%s\"\n",
1704                         style_strings[a->acl_dn_style], a->acl_dn_pat.bv_val );
1705         }
1706
1707         if ( a->acl_filter != NULL ) {
1708                 struct berval bv = { 0, NULL };
1709                 to++;
1710                 filter2bv( a->acl_filter, &bv );
1711                 fprintf( stderr, " filter=%s\n", bv.bv_val );
1712                 ch_free( bv.bv_val );
1713         }
1714
1715         if ( a->acl_attrs != NULL ) {
1716                 int     first = 1;
1717                 AttributeName *an;
1718                 to++;
1719
1720                 fprintf( stderr, " attrs=" );
1721                 for ( an = a->acl_attrs; an && an->an_name.bv_val; an++ ) {
1722                         if ( ! first ) {
1723                                 fprintf( stderr, "," );
1724                         }
1725                         if (an->an_oc) {
1726                                 fputc( an->an_oc_exclude ? '!' : '@', stderr);
1727                         }
1728                         fputs( an->an_name.bv_val, stderr );
1729                         first = 0;
1730                 }
1731                 fprintf(  stderr, "\n" );
1732         }
1733
1734         if ( a->acl_attrval.bv_len != 0 ) {
1735                 to++;
1736                 fprintf( stderr, " val.%s=\"%s\"\n",
1737                         style_strings[a->acl_attrval_style], a->acl_attrval.bv_val );
1738
1739         }
1740
1741         if( !to ) {
1742                 fprintf( stderr, " *\n" );
1743         }
1744
1745         for ( b = a->acl_access; b != NULL; b = b->a_next ) {
1746                 print_access( b );
1747         }
1748
1749         fprintf( stderr, "\n" );
1750 }
1751
1752 #endif /* LDAP_DEBUG */