git.sur5r.net Git - openldap/blob - servers/slapd/back-ldap/config.c

   1 /* config.c - ldap backend configuration file routine */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2003-2006 The OpenLDAP Foundation.
   6  * Portions Copyright 1999-2003 Howard Chu.
   7  * Portions Copyright 2000-2003 Pierangelo Masarati.
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted only as authorized by the OpenLDAP
  12  * Public License.
  13  *
  14  * A copy of this license is available in the file LICENSE in the
  15  * top-level directory of the distribution or, alternatively, at
  16  * <http://www.OpenLDAP.org/license.html>.
  17  */
  18 /* ACKNOWLEDGEMENTS:
  19  * This work was initially developed by the Howard Chu for inclusion
  20  * in OpenLDAP Software and subsequently enhanced by Pierangelo
  21  * Masarati.
  22  */
  23
  24 #include "portable.h"
  25
  26 #include <stdio.h>
  27
  28 #include <ac/string.h>
  29 #include <ac/ctype.h>
  30 #include <ac/socket.h>
  31
  32 #include "slap.h"
  33 #include "config.h"
  34 #include "back-ldap.h"
  35 #include "lutil.h"
  36 #include "ldif.h"
  37 #undef ldap_debug
  38 /* for advanced URL parsing */
  39 #include "../../../libraries/libldap/ldap-int.h"
  40
  41 static SLAP_EXTOP_MAIN_FN ldap_back_exop_whoami;
  42
  43 static ConfigDriver ldap_back_cf_gen;
  44
  45 enum {
  46         LDAP_BACK_CFG_URI = 1,
  47         LDAP_BACK_CFG_TLS,
  48         LDAP_BACK_CFG_ACL_AUTHCDN,
  49         LDAP_BACK_CFG_ACL_PASSWD,
  50         LDAP_BACK_CFG_ACL_METHOD,
  51         LDAP_BACK_CFG_ACL_BIND,
  52         LDAP_BACK_CFG_IDASSERT_MODE,
  53         LDAP_BACK_CFG_IDASSERT_AUTHCDN,
  54         LDAP_BACK_CFG_IDASSERT_PASSWD,
  55         LDAP_BACK_CFG_IDASSERT_AUTHZFROM,
  56         LDAP_BACK_CFG_IDASSERT_METHOD,
  57         LDAP_BACK_CFG_IDASSERT_BIND,
  58         LDAP_BACK_CFG_REBIND,
  59         LDAP_BACK_CFG_CHASE,
  60         LDAP_BACK_CFG_T_F,
  61         LDAP_BACK_CFG_WHOAMI,
  62         LDAP_BACK_CFG_TIMEOUT,
  63         LDAP_BACK_CFG_IDLE_TIMEOUT,
  64         LDAP_BACK_CFG_CONN_TTL,
  65         LDAP_BACK_CFG_NETWORK_TIMEOUT,
  66         LDAP_BACK_CFG_VERSION,
  67         LDAP_BACK_CFG_SINGLECONN,
  68         LDAP_BACK_CFG_REWRITE,
  69
  70         LDAP_BACK_CFG_LAST
  71 };
  72
  73 static ConfigTable ldapcfg[] = {
  74         { "uri", "uri", 2, 2, 0,
  75                 ARG_MAGIC|LDAP_BACK_CFG_URI,
  76                 ldap_back_cf_gen, "( OLcfgDbAt:0.14 "
  77                         "NAME 'olcDbURI' "
  78                         "DESC 'URI (list) for remote DSA' "
  79                         "SYNTAX OMsDirectoryString "
  80                         "SINGLE-VALUE )",
  81                 NULL, NULL },
  82         { "tls", "what", 2, 2, 0,
  83                 ARG_MAGIC|LDAP_BACK_CFG_TLS,
  84                 ldap_back_cf_gen, "( OLcfgDbAt:3.1 "
  85                         "NAME 'olcDbStartTLS' "
  86                         "DESC 'StartTLS' "
  87                         "SYNTAX OMsDirectoryString "
  88                         "SINGLE-VALUE )",
  89                 NULL, NULL },
  90         { "acl-authcDN", "DN", 2, 2, 0,
  91                 ARG_DN|ARG_MAGIC|LDAP_BACK_CFG_ACL_AUTHCDN,
  92                 ldap_back_cf_gen, "( OLcfgDbAt:3.2 "
  93                         "NAME 'olcDbACLAuthcDn' "
  94                         "DESC 'Remote ACL administrative identity' "
  95                         "OBSOLETE "
  96                         "SYNTAX OMsDN "
  97                         "SINGLE-VALUE )",
  98                 NULL, NULL },
  99         /* deprecated, will be removed; aliases "acl-authcDN" */
 100         { "binddn", "DN", 2, 2, 0,
 101                 ARG_DN|ARG_MAGIC|LDAP_BACK_CFG_ACL_AUTHCDN,
 102                 ldap_back_cf_gen, NULL, NULL, NULL },
 103         { "acl-passwd", "cred", 2, 2, 0,
 104                 ARG_MAGIC|LDAP_BACK_CFG_ACL_PASSWD,
 105                 ldap_back_cf_gen, "( OLcfgDbAt:3.3 "
 106                         "NAME 'olcDbACLPasswd' "
 107                         "DESC 'Remote ACL administrative identity credentials' "
 108                         "OBSOLETE "
 109                         "SYNTAX OMsDirectoryString "
 110                         "SINGLE-VALUE )",
 111                 NULL, NULL },
 112         /* deprecated, will be removed; aliases "acl-passwd" */
 113         { "bindpw", "cred", 2, 2, 0,
 114                 ARG_MAGIC|LDAP_BACK_CFG_ACL_PASSWD,
 115                 ldap_back_cf_gen, NULL, NULL, NULL },
 116         /* deprecated, will be removed; aliases "acl-bind" */
 117         { "acl-method", "args", 2, 0, 0,
 118                 ARG_MAGIC|LDAP_BACK_CFG_ACL_METHOD,
 119                 ldap_back_cf_gen, NULL, NULL, NULL },
 120         { "acl-bind", "args", 2, 0, 0,
 121                 ARG_MAGIC|LDAP_BACK_CFG_ACL_BIND,
 122                 ldap_back_cf_gen, "( OLcfgDbAt:3.4 "
 123                         "NAME 'olcDbACLBind' "
 124                         "DESC 'Remote ACL administrative identity auth bind configuration' "
 125                         "SYNTAX OMsDirectoryString "
 126                         "SINGLE-VALUE )",
 127                 NULL, NULL },
 128         { "idassert-authcDN", "DN", 2, 2, 0,
 129                 ARG_DN|ARG_MAGIC|LDAP_BACK_CFG_IDASSERT_AUTHCDN,
 130                 ldap_back_cf_gen, "( OLcfgDbAt:3.5 "
 131                         "NAME 'olcDbIDAssertAuthcDn' "
 132                         "DESC 'Remote Identity Assertion administrative identity' "
 133                         "OBSOLETE "
 134                         "SYNTAX OMsDN "
 135                         "SINGLE-VALUE )",
 136                 NULL, NULL },
 137         /* deprecated, will be removed; partially aliases "idassert-authcDN" */
 138         { "proxyauthzdn", "DN", 2, 2, 0,
 139                 ARG_DN|ARG_MAGIC|LDAP_BACK_CFG_IDASSERT_AUTHCDN,
 140                 ldap_back_cf_gen, NULL, NULL, NULL },
 141         { "idassert-passwd", "cred", 2, 2, 0,
 142                 ARG_MAGIC|LDAP_BACK_CFG_IDASSERT_PASSWD,
 143                 ldap_back_cf_gen, "( OLcfgDbAt:3.6 "
 144                         "NAME 'olcDbIDAssertPasswd' "
 145                         "DESC 'Remote Identity Assertion administrative identity credentials' "
 146                         "OBSOLETE "
 147                         "SYNTAX OMsDirectoryString "
 148                         "SINGLE-VALUE )",
 149                 NULL, NULL },
 150         /* deprecated, will be removed; partially aliases "idassert-passwd" */
 151         { "proxyauthzpw", "cred", 2, 2, 0,
 152                 ARG_MAGIC|LDAP_BACK_CFG_IDASSERT_PASSWD,
 153                 ldap_back_cf_gen, NULL, NULL, NULL },
 154         { "idassert-bind", "args", 2, 0, 0,
 155                 ARG_MAGIC|LDAP_BACK_CFG_IDASSERT_BIND,
 156                 ldap_back_cf_gen, "( OLcfgDbAt:3.7 "
 157                         "NAME 'olcDbIDAssertBind' "
 158                         "DESC 'Remote Identity Assertion administrative identity auth bind configuration' "
 159                         "SYNTAX OMsDirectoryString "
 160                         "SINGLE-VALUE )",
 161                 NULL, NULL },
 162         { "idassert-method", "args", 2, 0, 0,
 163                 ARG_MAGIC|LDAP_BACK_CFG_IDASSERT_METHOD,
 164                 ldap_back_cf_gen, NULL, NULL, NULL },
 165         { "idassert-mode", "mode>|u:<user>|[dn:]<DN", 2, 0, 0,
 166                 ARG_STRING|ARG_MAGIC|LDAP_BACK_CFG_IDASSERT_MODE,
 167                 ldap_back_cf_gen, "( OLcfgDbAt:3.8 "
 168                         "NAME 'olcDbIDAssertMode' "
 169                         "DESC 'Remote Identity Assertion mode' "
 170                         "OBSOLETE "
 171                         "SYNTAX OMsDirectoryString "
 172                         "SINGLE-VALUE)",
 173                 NULL, NULL },
 174         { "idassert-authzFrom", "authzRule", 2, 2, 0,
 175                 ARG_MAGIC|LDAP_BACK_CFG_IDASSERT_AUTHZFROM,
 176                 ldap_back_cf_gen, "( OLcfgDbAt:3.9 "
 177                         "NAME 'olcDbIDAssertAuthzFrom' "
 178                         "DESC 'Remote Identity Assertion authz rules' "
 179                         "SYNTAX OMsDirectoryString "
 180                         "X-ORDERED 'VALUES' )",
 181                 NULL, NULL },
 182         { "rebind-as-user", "NO|yes", 1, 2, 0,
 183                 ARG_MAGIC|ARG_ON_OFF|LDAP_BACK_CFG_REBIND,
 184                 ldap_back_cf_gen, "( OLcfgDbAt:3.10 "
 185                         "NAME 'olcDbRebindAsUser' "
 186                         "DESC 'Rebind as user' "
 187                         "SYNTAX OMsBoolean "
 188                         "SINGLE-VALUE )",
 189                 NULL, NULL },
 190         { "chase-referrals", "YES|no", 2, 2, 0,
 191                 ARG_MAGIC|ARG_ON_OFF|LDAP_BACK_CFG_CHASE,
 192                 ldap_back_cf_gen, "( OLcfgDbAt:3.11 "
 193                         "NAME 'olcDbChaseReferrals' "
 194                         "DESC 'Chase referrals' "
 195                         "SYNTAX OMsBoolean "
 196                         "SINGLE-VALUE )",
 197                 NULL, NULL },
 198         { "t-f-support", "NO|yes|discover", 2, 2, 0,
 199                 ARG_MAGIC|LDAP_BACK_CFG_T_F,
 200                 ldap_back_cf_gen, "( OLcfgDbAt:3.12 "
 201                         "NAME 'olcDbTFSupport' "
 202                         "DESC 'Absolute filters support' "
 203                         "SYNTAX OMsDirectoryString "
 204                         "SINGLE-VALUE )",
 205                 NULL, NULL },
 206         { "proxy-whoami", "NO|yes", 1, 2, 0,
 207                 ARG_MAGIC|ARG_ON_OFF|LDAP_BACK_CFG_WHOAMI,
 208                 ldap_back_cf_gen, "( OLcfgDbAt:3.13 "
 209                         "NAME 'olcDbProxyWhoAmI' "
 210                         "DESC 'Proxy whoAmI exop' "
 211                         "SYNTAX OMsBoolean "
 212                         "SINGLE-VALUE )",
 213                 NULL, NULL },
 214         { "timeout", "timeout(list)", 2, 0, 0,
 215                 ARG_MAGIC|LDAP_BACK_CFG_TIMEOUT,
 216                 ldap_back_cf_gen, "( OLcfgDbAt:3.14 "
 217                         "NAME 'olcDbTimeout' "
 218                         "DESC 'Per-operation timeouts' "
 219                         "SYNTAX OMsDirectoryString "
 220                         "SINGLE-VALUE )",
 221                 NULL, NULL },
 222         { "idle-timeout", "timeout", 2, 0, 0,
 223                 ARG_MAGIC|LDAP_BACK_CFG_IDLE_TIMEOUT,
 224                 ldap_back_cf_gen, "( OLcfgDbAt:3.15 "
 225                         "NAME 'olcDbIdleTimeout' "
 226                         "DESC 'connection idle timeout' "
 227                         "SYNTAX OMsDirectoryString "
 228                         "SINGLE-VALUE )",
 229                 NULL, NULL },
 230         { "conn-ttl", "ttl", 2, 0, 0,
 231                 ARG_MAGIC|LDAP_BACK_CFG_CONN_TTL,
 232                 ldap_back_cf_gen, "( OLcfgDbAt:3.16 "
 233                         "NAME 'olcDbConnTtl' "
 234                         "DESC 'connection ttl' "
 235                         "SYNTAX OMsDirectoryString "
 236                         "SINGLE-VALUE )",
 237                 NULL, NULL },
 238         { "network-timeout", "timeout", 2, 0, 0,
 239                 ARG_MAGIC|LDAP_BACK_CFG_NETWORK_TIMEOUT,
 240                 ldap_back_cf_gen, "( OLcfgDbAt:3.17 "
 241                         "NAME 'olcDbNetworkTimeout' "
 242                         "DESC 'connection network timeout' "
 243                         "SYNTAX OMsDirectoryString "
 244                         "SINGLE-VALUE )",
 245                 NULL, NULL },
 246         { "protocol-version", "version", 2, 0, 0,
 247                 ARG_MAGIC|ARG_INT|LDAP_BACK_CFG_VERSION,
 248                 ldap_back_cf_gen, "( OLcfgDbAt:3.18 "
 249                         "NAME 'olcDbProtocolVersion' "
 250                         "DESC 'protocol version' "
 251                         "SYNTAX OMsInteger "
 252                         "SINGLE-VALUE )",
 253                 NULL, NULL },
 254         { "single-conn", "TRUE/FALSE", 2, 0, 0,
 255                 ARG_MAGIC|ARG_ON_OFF|LDAP_BACK_CFG_SINGLECONN,
 256                 ldap_back_cf_gen, "( OLcfgDbAt:3.19 "
 257                         "NAME 'olcDbSingleConn' "
 258                         "DESC 'cache a single connection per identity' "
 259                         "SYNTAX OMsBoolean "
 260                         "SINGLE-VALUE )",
 261                 NULL, NULL },
 262         { "suffixmassage", "[virtual]> <real", 2, 3, 0,
 263                 ARG_STRING|ARG_MAGIC|LDAP_BACK_CFG_REWRITE,
 264                 ldap_back_cf_gen, NULL, NULL, NULL },
 265         { "map", "attribute|objectClass> [*|<local>] *|<remote", 3, 4, 0,
 266                 ARG_STRING|ARG_MAGIC|LDAP_BACK_CFG_REWRITE,
 267                 ldap_back_cf_gen, NULL, NULL, NULL },
 268         { "rewrite", "<arglist>", 2, 4, STRLENOF( "rewrite" ),
 269                 ARG_STRING|ARG_MAGIC|LDAP_BACK_CFG_REWRITE,
 270                 ldap_back_cf_gen, NULL, NULL, NULL },
 271         { NULL, NULL, 0, 0, 0, ARG_IGNORED,
 272                 NULL, NULL, NULL, NULL }
 273 };
 274
 275 static ConfigOCs ldapocs[] = {
 276         { "( OLcfgDbOc:3.1 "
 277                 "NAME 'olcLDAPConfig' "
 278                 "DESC 'LDAP backend configuration' "
 279                 "SUP olcDatabaseConfig "
 280                 "MUST olcDbURI "
 281                 "MAY ( olcDbStartTLS "
 282                         "$ olcDbACLAuthcDn "
 283                         "$ olcDbACLPasswd "
 284                         "$ olcDbACLBind "
 285                         "$ olcDbIDAssertAuthcDn "
 286                         "$ olcDbIDAssertPasswd "
 287                         "$ olcDbIDAssertBind "
 288                         "$ olcDbIDAssertMode "
 289                         "$ olcDbIDAssertAuthzFrom "
 290                         "$ olcDbRebindAsUser "
 291                         "$ olcDbChaseReferrals "
 292                         "$ olcDbTFSupport "
 293                         "$ olcDbProxyWhoAmI "
 294                         "$ olcDbTimeout "
 295                         "$ olcDbIdleTimeout "
 296                         "$ olcDbSingleConn "
 297                 ") )",
 298                         Cft_Database, ldapcfg},
 299         { NULL, 0, NULL }
 300 };
 301
 302 static slap_verbmasks idassert_mode[] = {
 303         { BER_BVC("self"),              LDAP_BACK_IDASSERT_SELF },
 304         { BER_BVC("anonymous"),         LDAP_BACK_IDASSERT_ANONYMOUS },
 305         { BER_BVC("none"),              LDAP_BACK_IDASSERT_NOASSERT },
 306         { BER_BVC("legacy"),            LDAP_BACK_IDASSERT_LEGACY },
 307         { BER_BVNULL,                   0 }
 308 };
 309
 310 static slap_verbmasks tls_mode[] = {
 311         { BER_BVC( "propagate" ),       LDAP_BACK_F_TLS_PROPAGATE_MASK },
 312         { BER_BVC( "try-propagate" ),   LDAP_BACK_F_PROPAGATE_TLS },
 313         { BER_BVC( "start" ),           LDAP_BACK_F_TLS_USE_MASK },
 314         { BER_BVC( "try-start" ),       LDAP_BACK_F_USE_TLS },
 315         { BER_BVC( "none" ),            LDAP_BACK_F_NONE },
 316         { BER_BVNULL,                   0 }
 317 };
 318
 319 static slap_verbmasks t_f_mode[] = {
 320         { BER_BVC( "yes" ),             LDAP_BACK_F_SUPPORT_T_F },
 321         { BER_BVC( "discover" ),        LDAP_BACK_F_SUPPORT_T_F_DISCOVER },
 322         { BER_BVC( "no" ),              LDAP_BACK_F_NONE },
 323         { BER_BVNULL,                   0 }
 324 };
 325
 326 static slap_cf_aux_table timeout_table[] = {
 327         { BER_BVC("add="), 0 * sizeof( time_t ), 'u', 0, NULL },
 328         { BER_BVC("delete="), 1 * sizeof( time_t ), 'u', 0, NULL },
 329         { BER_BVC("modify="), 2 * sizeof( time_t ), 'u', 0, NULL },
 330         { BER_BVC("modrdn="), 3 * sizeof( time_t ), 'u', 0, NULL },
 331         { BER_BVNULL, 0, 0, 0, NULL }
 332 };
 333
 334 static int
 335 ldap_back_cf_gen( ConfigArgs *c )
 336 {
 337         ldapinfo_t      *li = ( ldapinfo_t * )c->be->be_private;
 338         int             rc;
 339         int             i;
 340
 341         if ( c->op == SLAP_CONFIG_EMIT ) {
 342                 struct berval   bv = BER_BVNULL;
 343                 rc = 0;
 344
 345                 if ( li == NULL ) {
 346                         return 1;
 347                 }
 348
 349                 switch( c->type ) {
 350                 case LDAP_BACK_CFG_URI:
 351                         if ( li->li_uri != NULL ) {
 352                                 struct berval   bv;
 353
 354                                 ber_str2bv( li->li_uri, 0, 0, &bv );
 355                                 value_add_one( &c->rvalue_vals, &bv );
 356
 357                         } else {
 358                                 rc = 1;
 359                         }
 360                         break;
 361
 362                 case LDAP_BACK_CFG_TLS:
 363                         enum_to_verb( tls_mode, ( li->li_flags & LDAP_BACK_F_TLS_MASK ), &bv );
 364                         assert( !BER_BVISNULL( &bv ) );
 365                         value_add_one( &c->rvalue_vals, &bv );
 366                         break;
 367
 368                 case LDAP_BACK_CFG_ACL_AUTHCDN:
 369                 case LDAP_BACK_CFG_ACL_PASSWD:
 370                 case LDAP_BACK_CFG_ACL_METHOD:
 371                         /* handled by LDAP_BACK_CFG_ACL_BIND */
 372                         rc = 1;
 373                         break;
 374
 375                 case LDAP_BACK_CFG_ACL_BIND: {
 376                         int     i;
 377
 378                         if ( li->li_acl_authmethod == LDAP_AUTH_NONE ) {
 379                                 return 1;
 380                         }
 381
 382                         bindconf_unparse( &li->li_acl, &bv );
 383
 384                         for ( i = 0; isspace( (unsigned char) bv.bv_val[ i ] ); i++ )
 385                                 /* count spaces */ ;
 386
 387                         if ( i ) {
 388                                 bv.bv_len -= i;
 389                                 AC_MEMCPY( bv.bv_val, &bv.bv_val[ i ],
 390                                         bv.bv_len + 1 );
 391                         }
 392
 393                         ber_bvarray_add( &c->rvalue_vals, &bv );
 394                         break;
 395                 }
 396
 397                 case LDAP_BACK_CFG_IDASSERT_MODE:
 398                 case LDAP_BACK_CFG_IDASSERT_AUTHCDN:
 399                 case LDAP_BACK_CFG_IDASSERT_PASSWD:
 400                 case LDAP_BACK_CFG_IDASSERT_METHOD:
 401                         /* handled by LDAP_BACK_CFG_IDASSERT_BIND */
 402                         rc = 1;
 403                         break;
 404
 405                 case LDAP_BACK_CFG_IDASSERT_AUTHZFROM: {
 406                         int             i;
 407
 408                         if ( li->li_idassert_authz == NULL ) {
 409                                 rc = 1;
 410                                 break;
 411                         }
 412
 413                         for ( i = 0; !BER_BVISNULL( &li->li_idassert_authz[ i ] ); i++ )
 414                         {
 415                                 value_add_one( &c->rvalue_vals, &li->li_idassert_authz[ i ] );
 416                         }
 417                         break;
 418                 }
 419
 420                 case LDAP_BACK_CFG_IDASSERT_BIND: {
 421                         int             i;
 422                         struct berval   bc = BER_BVNULL;
 423                         char            *ptr;
 424
 425                         if ( li->li_idassert_authmethod == LDAP_AUTH_NONE ) {
 426                                 return 1;
 427                         }
 428
 429                         if ( li->li_idassert_authmethod != LDAP_AUTH_NONE ) {
 430                                 ber_len_t       len;
 431
 432                                 switch ( li->li_idassert_mode ) {
 433                                 case LDAP_BACK_IDASSERT_OTHERID:
 434                                 case LDAP_BACK_IDASSERT_OTHERDN:
 435                                         break;
 436
 437                                 default: {
 438                                         struct berval   mode = BER_BVNULL;
 439
 440                                         enum_to_verb( idassert_mode, li->li_idassert_mode, &mode );
 441                                         if ( BER_BVISNULL( &mode ) ) {
 442                                                 /* there's something wrong... */
 443                                                 assert( 0 );
 444                                                 rc = 1;
 445
 446                                         } else {
 447                                                 bv.bv_len = STRLENOF( "mode=" ) + mode.bv_len;
 448                                                 bv.bv_val = ch_malloc( bv.bv_len + 1 );
 449
 450                                                 ptr = lutil_strcopy( bv.bv_val, "mode=" );
 451                                                 ptr = lutil_strcopy( ptr, mode.bv_val );
 452                                         }
 453                                         break;
 454                                 }
 455                                 }
 456
 457                                 if ( li->li_idassert_flags & LDAP_BACK_AUTH_NATIVE_AUTHZ ) {
 458                                         len = bv.bv_len + STRLENOF( "authz=native" );
 459
 460                                         if ( !BER_BVISEMPTY( &bv ) ) {
 461                                                 len += STRLENOF( " " );
 462                                         }
 463
 464                                         bv.bv_val = ch_realloc( bv.bv_val, len + 1 );
 465
 466                                         ptr = &bv.bv_val[ bv.bv_len ];
 467
 468                                         if ( !BER_BVISEMPTY( &bv ) ) {
 469                                                 ptr = lutil_strcopy( ptr, " " );
 470                                         }
 471
 472                                         (void)lutil_strcopy( ptr, "authz=native" );
 473                                 }
 474
 475                                 len = bv.bv_len + STRLENOF( "flags=non-prescriptive,override,obsolete-encoding-workaround" );
 476                                 /* flags */
 477                                 if ( !BER_BVISEMPTY( &bv ) ) {
 478                                         len += STRLENOF( " " );
 479                                 }
 480
 481                                 bv.bv_val = ch_realloc( bv.bv_val, len + 1 );
 482
 483                                 ptr = &bv.bv_val[ bv.bv_len ];
 484
 485                                 if ( !BER_BVISEMPTY( &bv ) ) {
 486                                         ptr = lutil_strcopy( ptr, " " );
 487                                 }
 488
 489                                 ptr = lutil_strcopy( ptr, "flags=" );
 490
 491                                 if ( li->li_idassert_flags & LDAP_BACK_AUTH_PRESCRIPTIVE ) {
 492                                         ptr = lutil_strcopy( ptr, "prescriptive" );
 493                                 } else {
 494                                         ptr = lutil_strcopy( ptr, "non-prescriptive" );
 495                                 }
 496
 497                                 if ( li->li_idassert_flags & LDAP_BACK_AUTH_OVERRIDE ) {
 498                                         ptr = lutil_strcopy( ptr, ",override" );
 499                                 }
 500
 501                                 if ( li->li_idassert_flags & LDAP_BACK_AUTH_OBSOLETE_PROXY_AUTHZ ) {
 502                                         ptr = lutil_strcopy( ptr, ",obsolete-proxy-authz" );
 503
 504                                 } else if ( li->li_idassert_flags & LDAP_BACK_AUTH_OBSOLETE_ENCODING_WORKAROUND ) {
 505                                         ptr = lutil_strcopy( ptr, ",obsolete-encoding-workaround" );
 506                                 }
 507
 508                                 bv.bv_len = ( ptr - bv.bv_val );
 509                                 /* end-of-flags */
 510                         }
 511
 512                         bindconf_unparse( &li->li_idassert, &bc );
 513
 514                         if ( !BER_BVISNULL( &bv ) ) {
 515                                 ber_len_t       len = bv.bv_len + bc.bv_len;
 516
 517                                 bv.bv_val = ch_realloc( bv.bv_val, len + 1 );
 518
 519                                 assert( bc.bv_val[ 0 ] == ' ' );
 520
 521                                 ptr = lutil_strcopy( &bv.bv_val[ bv.bv_len ], bc.bv_val );
 522                                 free( bc.bv_val );
 523                                 bv.bv_len = ptr - bv.bv_val;
 524
 525                         } else {
 526                                 for ( i = 0; isspace( (unsigned char) bc.bv_val[ i ] ); i++ )
 527                                         /* count spaces */ ;
 528
 529                                 if ( i ) {
 530                                         bc.bv_len -= i;
 531                                         AC_MEMCPY( bc.bv_val, &bc.bv_val[ i ], bc.bv_len + 1 );
 532                                 }
 533
 534                                 bv = bc;
 535                         }
 536
 537                         ber_bvarray_add( &c->rvalue_vals, &bv );
 538
 539                         break;
 540                 }
 541
 542                 case LDAP_BACK_CFG_REBIND:
 543                         c->value_int = LDAP_BACK_SAVECRED( li );
 544                         break;
 545
 546                 case LDAP_BACK_CFG_CHASE:
 547                         c->value_int = LDAP_BACK_CHASE_REFERRALS( li );
 548                         break;
 549
 550                 case LDAP_BACK_CFG_T_F:
 551                         enum_to_verb( t_f_mode, (li->li_flags & LDAP_BACK_F_SUPPORT_T_F_MASK), &bv );
 552                         if ( BER_BVISNULL( &bv ) ) {
 553                                 /* there's something wrong... */
 554                                 assert( 0 );
 555                                 rc = 1;
 556
 557                         } else {
 558                                 value_add_one( &c->rvalue_vals, &bv );
 559                         }
 560                         break;
 561
 562                 case LDAP_BACK_CFG_WHOAMI:
 563                         c->value_int = LDAP_BACK_PROXY_WHOAMI( li );
 564                         break;
 565
 566                 case LDAP_BACK_CFG_TIMEOUT:
 567                         BER_BVZERO( &bv );
 568
 569                         for ( i = 0; i < LDAP_BACK_OP_LAST; i++ ) {
 570                                 if ( li->li_timeout[ i ] != 0 ) {
 571                                         break;
 572                                 }
 573                         }
 574
 575                         if ( i == LDAP_BACK_OP_LAST ) {
 576                                 return 1;
 577                         }
 578
 579                         slap_cf_aux_table_unparse( li->li_timeout, &bv, timeout_table );
 580
 581                         if ( BER_BVISNULL( &bv ) ) {
 582                                 return 1;
 583                         }
 584
 585                         for ( i = 0; isspace( (unsigned char) bv.bv_val[ i ] ); i++ )
 586                                 /* count spaces */ ;
 587
 588                         if ( i ) {
 589                                 bv.bv_len -= i;
 590                                 AC_MEMCPY( bv.bv_val, &bv.bv_val[ i ],
 591                                         bv.bv_len + 1 );
 592                         }
 593
 594                         ber_bvarray_add( &c->rvalue_vals, &bv );
 595                         break;
 596
 597                 case LDAP_BACK_CFG_IDLE_TIMEOUT: {
 598                         char    buf[ SLAP_TEXT_BUFLEN ];
 599
 600                         if ( li->li_idle_timeout == 0 ) {
 601                                 return 1;
 602                         }
 603
 604                         lutil_unparse_time( buf, sizeof( buf ), li->li_idle_timeout );
 605                         ber_str2bv( buf, 0, 0, &bv );
 606                         value_add_one( &c->rvalue_vals, &bv );
 607                         } break;
 608
 609                 case LDAP_BACK_CFG_CONN_TTL: {
 610                         char    buf[ SLAP_TEXT_BUFLEN ];
 611
 612                         if ( li->li_conn_ttl == 0 ) {
 613                                 return 1;
 614                         }
 615
 616                         lutil_unparse_time( buf, sizeof( buf ), li->li_conn_ttl );
 617                         ber_str2bv( buf, 0, 0, &bv );
 618                         value_add_one( &c->rvalue_vals, &bv );
 619                         } break;
 620
 621                 case LDAP_BACK_CFG_NETWORK_TIMEOUT: {
 622                         char    buf[ SLAP_TEXT_BUFLEN ];
 623
 624                         if ( li->li_network_timeout == 0 ) {
 625                                 return 1;
 626                         }
 627
 628                         snprintf( buf, sizeof( buf ), "%ld",
 629                                 (long)li->li_network_timeout );
 630                         ber_str2bv( buf, 0, 0, &bv );
 631                         value_add_one( &c->rvalue_vals, &bv );
 632                         } break;
 633
 634                 case LDAP_BACK_CFG_VERSION:
 635                         if ( li->li_version == 0 ) {
 636                                 return 1;
 637                         }
 638
 639                         c->value_int = li->li_version;
 640                         break;
 641
 642                 case LDAP_BACK_CFG_SINGLECONN:
 643                         c->value_int = LDAP_BACK_SINGLECONN( li );
 644                         break;
 645
 646                 default:
 647                         /* FIXME: we need to handle all... */
 648                         assert( 0 );
 649                         break;
 650                 }
 651                 return rc;
 652
 653         } else if ( c->op == LDAP_MOD_DELETE ) {
 654                 rc = 0;
 655                 switch( c->type ) {
 656                 case LDAP_BACK_CFG_URI:
 657                         if ( li->li_uri != NULL ) {
 658                                 ch_free( li->li_uri );
 659                                 li->li_uri = NULL;
 660
 661                                 assert( li->li_bvuri != NULL );
 662                                 ber_bvarray_free( li->li_bvuri );
 663                                 li->li_bvuri = NULL;
 664                         }
 665
 666                         /* better cleanup the cached connections... */
 667                         /* NOTE: don't worry about locking: if we got here,
 668                          * other threads are suspended. */
 669                         if ( li->li_conninfo.lai_tree != NULL ) {
 670                                 avl_free( li->li_conninfo.lai_tree, ldap_back_conn_free );
 671                                 li->li_conninfo.lai_tree = NULL;
 672                         }
 673
 674                         break;
 675
 676                 case LDAP_BACK_CFG_TLS:
 677                         rc = 1;
 678                         break;
 679
 680                 case LDAP_BACK_CFG_ACL_AUTHCDN:
 681                 case LDAP_BACK_CFG_ACL_PASSWD:
 682                 case LDAP_BACK_CFG_ACL_METHOD:
 683                         /* handled by LDAP_BACK_CFG_ACL_BIND */
 684                         rc = 1;
 685                         break;
 686
 687                 case LDAP_BACK_CFG_ACL_BIND:
 688                         bindconf_free( &li->li_acl );
 689                         break;
 690
 691                 case LDAP_BACK_CFG_IDASSERT_MODE:
 692                 case LDAP_BACK_CFG_IDASSERT_AUTHCDN:
 693                 case LDAP_BACK_CFG_IDASSERT_PASSWD:
 694                 case LDAP_BACK_CFG_IDASSERT_METHOD:
 695                         /* handled by LDAP_BACK_CFG_IDASSERT_BIND */
 696                         rc = 1;
 697                         break;
 698
 699                 case LDAP_BACK_CFG_IDASSERT_AUTHZFROM:
 700                         if ( li->li_idassert_authz != NULL ) {
 701                                 ber_bvarray_free( li->li_idassert_authz );
 702                                 li->li_idassert_authz = NULL;
 703                         }
 704                         break;
 705
 706                 case LDAP_BACK_CFG_IDASSERT_BIND:
 707                         bindconf_free( &li->li_idassert );
 708                         break;
 709
 710                 case LDAP_BACK_CFG_REBIND:
 711                 case LDAP_BACK_CFG_CHASE:
 712                 case LDAP_BACK_CFG_T_F:
 713                 case LDAP_BACK_CFG_WHOAMI:
 714                         rc = 1;
 715                         break;
 716
 717                 case LDAP_BACK_CFG_TIMEOUT:
 718                         for ( i = 0; i < LDAP_BACK_OP_LAST; i++ ) {
 719                                 li->li_timeout[ i ] = 0;
 720                         }
 721                         break;
 722
 723                 case LDAP_BACK_CFG_IDLE_TIMEOUT:
 724                         li->li_idle_timeout = 0;
 725                         break;
 726
 727                 case LDAP_BACK_CFG_CONN_TTL:
 728                         li->li_conn_ttl = 0;
 729                         break;
 730
 731                 case LDAP_BACK_CFG_NETWORK_TIMEOUT:
 732                         li->li_network_timeout = 0;
 733                         break;
 734
 735                 case LDAP_BACK_CFG_VERSION:
 736                         li->li_version = 0;
 737                         break;
 738
 739                 case LDAP_BACK_CFG_SINGLECONN:
 740                         li->li_flags &= ~LDAP_BACK_F_SINGLECONN;
 741                         break;
 742
 743                 default:
 744                         /* FIXME: we need to handle all... */
 745                         assert( 0 );
 746                         break;
 747                 }
 748                 return rc;
 749
 750         }
 751
 752         switch( c->type ) {
 753         case LDAP_BACK_CFG_URI: {
 754                 LDAPURLDesc     *tmpludp, *lud;
 755                 char            **urllist = NULL;
 756                 int             urlrc = LDAP_URL_SUCCESS, i;
 757
 758                 if ( li->li_uri != NULL ) {
 759                         ch_free( li->li_uri );
 760                         li->li_uri = NULL;
 761
 762                         assert( li->li_bvuri != NULL );
 763                         ber_bvarray_free( li->li_bvuri );
 764                         li->li_bvuri = NULL;
 765                 }
 766
 767                 /* PARANOID: DN and more are not required nor allowed */
 768                 urlrc = ldap_url_parselist_ext( &lud, c->argv[ 1 ], ", \t", LDAP_PVT_URL_PARSE_NONE );
 769                 if ( urlrc != LDAP_URL_SUCCESS ) {
 770                         char    *why;
 771
 772                         switch ( urlrc ) {
 773                         case LDAP_URL_ERR_MEM:
 774                                 why = "no memory";
 775                                 break;
 776                         case LDAP_URL_ERR_PARAM:
 777                                 why = "parameter is bad";
 778                                 break;
 779                         case LDAP_URL_ERR_BADSCHEME:
 780                                 why = "URL doesn't begin with \"[c]ldap[si]://\"";
 781                                 break;
 782                         case LDAP_URL_ERR_BADENCLOSURE:
 783                                 why = "URL is missing trailing \">\"";
 784                                 break;
 785                         case LDAP_URL_ERR_BADURL:
 786                                 why = "URL is bad";
 787                                 break;
 788                         case LDAP_URL_ERR_BADHOST:
 789                                 why = "host/port is bad";
 790                                 break;
 791                         case LDAP_URL_ERR_BADATTRS:
 792                                 why = "bad (or missing) attributes";
 793                                 break;
 794                         case LDAP_URL_ERR_BADSCOPE:
 795                                 why = "scope string is invalid (or missing)";
 796                                 break;
 797                         case LDAP_URL_ERR_BADFILTER:
 798                                 why = "bad or missing filter";
 799                                 break;
 800                         case LDAP_URL_ERR_BADEXTS:
 801                                 why = "bad or missing extensions";
 802                                 break;
 803                         default:
 804                                 why = "unknown reason";
 805                                 break;
 806                         }
 807                         snprintf( c->msg, sizeof( c->msg),
 808                                         "unable to parse uri \"%s\" "
 809                                         "in \"uri <uri>\" line: %s",
 810                                         c->value_string, why );
 811                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
 812                         urlrc = 1;
 813                         goto done_url;
 814                 }
 815
 816                 for ( i = 0, tmpludp = lud;
 817                                 tmpludp;
 818                                 i++, tmpludp = tmpludp->lud_next )
 819                 {
 820                         if ( ( tmpludp->lud_dn != NULL
 821                                                 && tmpludp->lud_dn[0] != '\0' )
 822                                         || tmpludp->lud_attrs != NULL
 823                                         /* || tmpludp->lud_scope != LDAP_SCOPE_DEFAULT */
 824                                         || tmpludp->lud_filter != NULL
 825                                         || tmpludp->lud_exts != NULL )
 826                         {
 827                                 snprintf( c->msg, sizeof( c->msg ),
 828                                                 "warning, only protocol, "
 829                                                 "host and port allowed "
 830                                                 "in \"uri <uri>\" statement "
 831                                                 "for uri #%d of \"%s\"",
 832                                                 i, c->argv[ 1 ] );
 833                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
 834                         }
 835                 }
 836
 837                 for ( i = 0, tmpludp = lud;
 838                                 tmpludp;
 839                                 i++, tmpludp = tmpludp->lud_next )
 840                         /* just count */
 841                         ;
 842                 urllist = ch_calloc( sizeof( char * ), i + 1 );
 843
 844                 for ( i = 0, tmpludp = lud;
 845                                 tmpludp;
 846                                 i++, tmpludp = tmpludp->lud_next )
 847                 {
 848                         LDAPURLDesc     tmplud;
 849
 850                         tmplud = *tmpludp;
 851                         tmplud.lud_dn = "";
 852                         tmplud.lud_attrs = NULL;
 853                         tmplud.lud_filter = NULL;
 854                         if ( !ldap_is_ldapi_url( tmplud.lud_scheme ) ) {
 855                                 tmplud.lud_exts = NULL;
 856                                 tmplud.lud_crit_exts = 0;
 857                         }
 858
 859                         urllist[ i ]  = ldap_url_desc2str( &tmplud );
 860
 861                         if ( urllist[ i ] == NULL ) {
 862                                 snprintf( c->msg, sizeof( c->msg),
 863                                         "unable to rebuild uri "
 864                                         "in \"uri <uri>\" statement "
 865                                         "for \"%s\"",
 866                                         c->argv[ 1 ] );
 867                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
 868                                 urlrc = 1;
 869                                 goto done_url;
 870                         }
 871                 }
 872
 873                 li->li_uri = ldap_charray2str( urllist, " " );
 874                 for ( i = 0; urllist[ i ] != NULL; i++ ) {
 875                         struct berval   bv;
 876
 877                         ber_str2bv( urllist[ i ], 0, 0, &bv );
 878                         ber_bvarray_add( &li->li_bvuri, &bv );
 879                         urllist[ i ] = NULL;
 880                 }
 881                 ldap_memfree( urllist );
 882                 urllist = NULL;
 883
 884 done_url:;
 885                 if ( urllist ) {
 886                         ldap_charray_free( urllist );
 887                 }
 888                 if ( lud ) {
 889                         ldap_free_urllist( lud );
 890                 }
 891                 if ( urlrc != LDAP_URL_SUCCESS ) {
 892                         return 1;
 893                 }
 894                 break;
 895         }
 896
 897         case LDAP_BACK_CFG_TLS:
 898                 i = verb_to_mask( c->argv[1], tls_mode );
 899                 if ( BER_BVISNULL( &tls_mode[i].word ) ) {
 900                         return 1;
 901                 }
 902                 li->li_flags &= ~LDAP_BACK_F_TLS_MASK;
 903                 li->li_flags |= tls_mode[i].mask;
 904                 break;
 905
 906         case LDAP_BACK_CFG_ACL_AUTHCDN:
 907                 switch ( li->li_acl_authmethod ) {
 908                 case LDAP_AUTH_NONE:
 909                         li->li_acl_authmethod = LDAP_AUTH_SIMPLE;
 910                         break;
 911
 912                 case LDAP_AUTH_SIMPLE:
 913                         break;
 914
 915                 default:
 916                         snprintf( c->msg, sizeof( c->msg),
 917                                 "\"acl-authcDN <DN>\" incompatible "
 918                                 "with auth method %d",
 919                                 li->li_acl_authmethod );
 920                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
 921                         return 1;
 922                 }
 923                 if ( !BER_BVISNULL( &li->li_acl_authcDN ) ) {
 924                         free( li->li_acl_authcDN.bv_val );
 925                 }
 926                 ber_memfree_x( c->value_dn.bv_val, NULL );
 927                 li->li_acl_authcDN = c->value_ndn;
 928                 BER_BVZERO( &c->value_dn );
 929                 BER_BVZERO( &c->value_ndn );
 930                 break;
 931
 932         case LDAP_BACK_CFG_ACL_PASSWD:
 933                 switch ( li->li_acl_authmethod ) {
 934                 case LDAP_AUTH_NONE:
 935                         li->li_acl_authmethod = LDAP_AUTH_SIMPLE;
 936                         break;
 937
 938                 case LDAP_AUTH_SIMPLE:
 939                         break;
 940
 941                 default:
 942                         snprintf( c->msg, sizeof( c->msg ),
 943                                 "\"acl-passwd <cred>\" incompatible "
 944                                 "with auth method %d",
 945                                 li->li_acl_authmethod );
 946                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
 947                         return 1;
 948                 }
 949                 if ( !BER_BVISNULL( &li->li_acl_passwd ) ) {
 950                         free( li->li_acl_passwd.bv_val );
 951                 }
 952                 ber_str2bv( c->argv[ 1 ], 0, 1, &li->li_acl_passwd );
 953                 break;
 954
 955         case LDAP_BACK_CFG_ACL_METHOD:
 956         case LDAP_BACK_CFG_ACL_BIND:
 957                 for ( i = 1; i < c->argc; i++ ) {
 958                         if ( bindconf_parse( c->argv[ i ], &li->li_acl ) ) {
 959                                 return 1;
 960                         }
 961                 }
 962                 break;
 963
 964         case LDAP_BACK_CFG_IDASSERT_MODE:
 965                 i = verb_to_mask( c->argv[1], idassert_mode );
 966                 if ( BER_BVISNULL( &idassert_mode[i].word ) ) {
 967                         if ( strncasecmp( c->argv[1], "u:", STRLENOF( "u:" ) ) == 0 ) {
 968                                 li->li_idassert_mode = LDAP_BACK_IDASSERT_OTHERID;
 969                                 ber_str2bv( c->argv[1], 0, 1, &li->li_idassert_authzID );
 970                                 li->li_idassert_authzID.bv_val[ 0 ] = 'u';
 971
 972                         } else {
 973                                 struct berval   id, ndn;
 974
 975                                 ber_str2bv( c->argv[1], 0, 0, &id );
 976
 977                                 if ( strncasecmp( c->argv[1], "dn:", STRLENOF( "dn:" ) ) == 0 ) {
 978                                         id.bv_val += STRLENOF( "dn:" );
 979                                         id.bv_len -= STRLENOF( "dn:" );
 980                                 }
 981
 982                                 rc = dnNormalize( 0, NULL, NULL, &id, &ndn, NULL );
 983                                 if ( rc != LDAP_SUCCESS ) {
 984                                         Debug( LDAP_DEBUG_ANY,
 985                                                 "%s: line %d: idassert ID \"%s\" is not a valid DN\n",
 986                                                 c->fname, c->lineno, c->argv[1] );
 987                                         return 1;
 988                                 }
 989
 990                                 li->li_idassert_authzID.bv_len = STRLENOF( "dn:" ) + ndn.bv_len;
 991                                 li->li_idassert_authzID.bv_val = ch_malloc( li->li_idassert_authzID.bv_len + 1 );
 992                                 AC_MEMCPY( li->li_idassert_authzID.bv_val, "dn:", STRLENOF( "dn:" ) );
 993                                 AC_MEMCPY( &li->li_idassert_authzID.bv_val[ STRLENOF( "dn:" ) ], ndn.bv_val, ndn.bv_len + 1 );
 994                                 ch_free( ndn.bv_val );
 995
 996                                 li->li_idassert_mode = LDAP_BACK_IDASSERT_OTHERDN;
 997                         }
 998
 999                 } else {
1000                         li->li_idassert_mode = idassert_mode[i].mask;
1001                 }
1002
1003                 if ( c->argc > 2 ) {
1004                         int     i;
1005
1006                         for ( i = 2; i < c->argc; i++ ) {
1007                                 if ( strcasecmp( c->argv[ i ], "override" ) == 0 ) {
1008                                         li->li_idassert_flags |= LDAP_BACK_AUTH_OVERRIDE;
1009
1010                                 } else if ( strcasecmp( c->argv[ i ], "prescriptive" ) == 0 ) {
1011                                         li->li_idassert_flags |= LDAP_BACK_AUTH_PRESCRIPTIVE;
1012
1013                                 } else if ( strcasecmp( c->argv[ i ], "non-prescriptive" ) == 0 ) {
1014                                         li->li_idassert_flags &= ( ~LDAP_BACK_AUTH_PRESCRIPTIVE );
1015
1016                                 } else if ( strcasecmp( c->argv[ i ], "obsolete-proxy-authz" ) == 0 ) {
1017                                         if ( li->li_idassert_flags & LDAP_BACK_AUTH_OBSOLETE_ENCODING_WORKAROUND ) {
1018                                                 Debug( LDAP_DEBUG_ANY,
1019                                                         "%s: line %d: \"obsolete-proxy-authz\" flag "
1020                                                         "in \"idassert-mode <args>\" "
1021                                                         "incompatible with previously issued \"obsolete-encoding-workaround\" flag.\n",
1022                                                         c->fname, c->lineno, 0 );
1023                                                 return 1;
1024                                         }
1025                                         li->li_idassert_flags |= LDAP_BACK_AUTH_OBSOLETE_PROXY_AUTHZ;
1026
1027                                 } else if ( strcasecmp( c->argv[ i ], "obsolete-encoding-workaround" ) == 0 ) {
1028                                         if ( li->li_idassert_flags & LDAP_BACK_AUTH_OBSOLETE_PROXY_AUTHZ ) {
1029                                                 Debug( LDAP_DEBUG_ANY,
1030                                                         "%s: line %d: \"obsolete-encoding-workaround\" flag "
1031                                                         "in \"idassert-mode <args>\" "
1032                                                         "incompatible with previously issued \"obsolete-proxy-authz\" flag.\n",
1033                                                         c->fname, c->lineno, 0 );
1034                                                 return 1;
1035                                         }
1036                                         li->li_idassert_flags |= LDAP_BACK_AUTH_OBSOLETE_ENCODING_WORKAROUND;
1037
1038                                 } else {
1039                                         Debug( LDAP_DEBUG_ANY,
1040                                                 "%s: line %d: unknown flag #%d "
1041                                                 "in \"idassert-mode <args> "
1042                                                 "[<flags>]\" line.\n",
1043                                                 c->fname, c->lineno, i - 2 );
1044                                         return 1;
1045                                 }
1046                         }
1047                 }
1048                 break;
1049
1050         case LDAP_BACK_CFG_IDASSERT_AUTHCDN:
1051                 switch ( li->li_idassert_authmethod ) {
1052                 case LDAP_AUTH_NONE:
1053                         li->li_idassert_authmethod = LDAP_AUTH_SIMPLE;
1054                         break;
1055
1056                 case LDAP_AUTH_SIMPLE:
1057                         break;
1058
1059                 default:
1060                         snprintf( c->msg, sizeof( c->msg ),
1061                                 "\"idassert-authcDN <DN>\" incompatible "
1062                                 "with auth method %d",
1063                                 li->li_idassert_authmethod );
1064                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
1065                         return 1;
1066                 }
1067                 if ( !BER_BVISNULL( &li->li_idassert_authcDN ) ) {
1068                         free( li->li_idassert_authcDN.bv_val );
1069                 }
1070                 ber_memfree_x( c->value_dn.bv_val, NULL );
1071                 li->li_idassert_authcDN = c->value_ndn;
1072                 BER_BVZERO( &c->value_dn );
1073                 BER_BVZERO( &c->value_ndn );
1074                 break;
1075
1076         case LDAP_BACK_CFG_IDASSERT_PASSWD:
1077                 switch ( li->li_idassert_authmethod ) {
1078                 case LDAP_AUTH_NONE:
1079                         li->li_idassert_authmethod = LDAP_AUTH_SIMPLE;
1080                         break;
1081
1082                 case LDAP_AUTH_SIMPLE:
1083                         break;
1084
1085                 default:
1086                         snprintf( c->msg, sizeof( c->msg ),
1087                                 "\"idassert-passwd <cred>\" incompatible "
1088                                 "with auth method %d",
1089                                 li->li_idassert_authmethod );
1090                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
1091                         return 1;
1092                 }
1093                 if ( !BER_BVISNULL( &li->li_idassert_passwd ) ) {
1094                         free( li->li_idassert_passwd.bv_val );
1095                 }
1096                 ber_str2bv( c->argv[ 1 ], 0, 1, &li->li_idassert_passwd );
1097                 break;
1098
1099         case LDAP_BACK_CFG_IDASSERT_AUTHZFROM: {
1100                 struct berval   bv;
1101                 struct berval   in;
1102                 int             rc;
1103
1104                 ber_str2bv( c->argv[ 1 ], 0, 0, &in );
1105                 rc = authzNormalize( 0, NULL, NULL, &in, &bv, NULL );
1106                 if ( rc != LDAP_SUCCESS ) {
1107                         snprintf( c->msg, sizeof( c->msg ),
1108                                 "\"idassert-authzFrom <authz>\": "
1109                                 "invalid syntax" );
1110                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
1111                         return 1;
1112                 }
1113                 ber_bvarray_add( &li->li_idassert_authz, &bv );
1114                 } break;
1115
1116         case LDAP_BACK_CFG_IDASSERT_METHOD:
1117                 /* no longer supported */
1118                 snprintf( c->msg, sizeof( c->msg ),
1119                         "\"idassert-method <args>\": "
1120                         "no longer supported; use \"idassert-bind\"" );
1121                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
1122                 return 1;
1123
1124         case LDAP_BACK_CFG_IDASSERT_BIND:
1125                 for ( i = 1; i < c->argc; i++ ) {
1126                         if ( strncasecmp( c->argv[ i ], "mode=", STRLENOF( "mode=" ) ) == 0 ) {
1127                                 char    *argvi = c->argv[ i ] + STRLENOF( "mode=" );
1128                                 int     j;
1129
1130                                 j = verb_to_mask( argvi, idassert_mode );
1131                                 if ( BER_BVISNULL( &idassert_mode[ j ].word ) ) {
1132                                         snprintf( c->msg, sizeof( c->msg ),
1133                                                 "\"idassert-bind <args>\": "
1134                                                 "unknown mode \"%s\"",
1135                                                 argvi );
1136                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
1137                                         return 1;
1138                                 }
1139
1140                                 li->li_idassert_mode = idassert_mode[ j ].mask;
1141
1142                         } else if ( strncasecmp( c->argv[ i ], "authz=", STRLENOF( "authz=" ) ) == 0 ) {
1143                                 char    *argvi = c->argv[ i ] + STRLENOF( "authz=" );
1144
1145                                 if ( strcasecmp( argvi, "native" ) == 0 ) {
1146                                         if ( li->li_idassert_authmethod != LDAP_AUTH_SASL ) {
1147                                                 snprintf( c->msg, sizeof( c->msg ),
1148                                                         "\"idassert-bind <args>\": "
1149                                                         "authz=\"native\" incompatible "
1150                                                         "with auth method" );
1151                                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
1152                                                 return 1;
1153                                         }
1154                                         li->li_idassert_flags |= LDAP_BACK_AUTH_NATIVE_AUTHZ;
1155
1156                                 } else if ( strcasecmp( argvi, "proxyAuthz" ) == 0 ) {
1157                                         li->li_idassert_flags &= ~LDAP_BACK_AUTH_NATIVE_AUTHZ;
1158
1159                                 } else {
1160                                         snprintf( c->msg, sizeof( c->msg ),
1161                                                 "\"idassert-bind <args>\": "
1162                                                 "unknown authz \"%s\"",
1163                                                 argvi );
1164                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
1165                                         return 1;
1166                                 }
1167
1168                         } else if ( strncasecmp( c->argv[ i ], "flags=", STRLENOF( "flags=" ) ) == 0 ) {
1169                                 char    *argvi = c->argv[ i ] + STRLENOF( "flags=" );
1170                                 char    **flags = ldap_str2charray( argvi, "," );
1171                                 int     j, err = 0;
1172
1173                                 if ( flags == NULL ) {
1174                                         snprintf( c->msg, sizeof( c->msg ),
1175                                                 "\"idassert-bind <args>\": "
1176                                                 "unable to parse flags \"%s\"",
1177                                                 argvi );
1178                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
1179                                         return 1;
1180                                 }
1181
1182                                 for ( j = 0; flags[ j ] != NULL; j++ ) {
1183
1184                                         if ( strcasecmp( flags[ j ], "override" ) == 0 ) {
1185                                                 li->li_idassert_flags |= LDAP_BACK_AUTH_OVERRIDE;
1186
1187                                         } else if ( strcasecmp( flags[ j ], "prescriptive" ) == 0 ) {
1188                                                 li->li_idassert_flags |= LDAP_BACK_AUTH_PRESCRIPTIVE;
1189
1190                                         } else if ( strcasecmp( flags[ j ], "non-prescriptive" ) == 0 ) {
1191                                                 li->li_idassert_flags &= ( ~LDAP_BACK_AUTH_PRESCRIPTIVE );
1192
1193                                         } else if ( strcasecmp( flags[ j ], "obsolete-proxy-authz" ) == 0 ) {
1194                                                 if ( li->li_idassert_flags & LDAP_BACK_AUTH_OBSOLETE_ENCODING_WORKAROUND ) {
1195                                                         Debug( LDAP_DEBUG_ANY,
1196                                                                 "%s: line %d: \"obsolete-proxy-authz\" flag "
1197                                                                 "in \"idassert-mode <args>\" "
1198                                                                 "incompatible with previously issued \"obsolete-encoding-workaround\" flag.\n",
1199                                                                 c->fname, c->lineno, 0 );
1200                                                         err = 1;
1201                                                         break;
1202
1203                                                 } else {
1204                                                         li->li_idassert_flags |= LDAP_BACK_AUTH_OBSOLETE_PROXY_AUTHZ;
1205                                                 }
1206
1207                                         } else if ( strcasecmp( flags[ j ], "obsolete-encoding-workaround" ) == 0 ) {
1208                                                 if ( li->li_idassert_flags & LDAP_BACK_AUTH_OBSOLETE_PROXY_AUTHZ ) {
1209                                                         Debug( LDAP_DEBUG_ANY,
1210                                                                 "%s: line %d: \"obsolete-encoding-workaround\" flag "
1211                                                                 "in \"idassert-mode <args>\" "
1212                                                                 "incompatible with previously issued \"obsolete-proxy-authz\" flag.\n",
1213                                                                 c->fname, c->lineno, 0 );
1214                                                         err = 1;
1215                                                         break;
1216
1217                                                 } else {
1218                                                         li->li_idassert_flags |= LDAP_BACK_AUTH_OBSOLETE_ENCODING_WORKAROUND;
1219                                                 }
1220
1221                                         } else {
1222                                                 snprintf( c->msg, sizeof( c->msg ),
1223                                                         "\"idassert-bind <args>\": "
1224                                                         "unknown flag \"%s\"",
1225                                                         flags[ j ] );
1226                                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
1227                                                 err = 1;
1228                                                 break;
1229                                         }
1230                                 }
1231
1232                                 ldap_charray_free( flags );
1233                                 if ( err ) {
1234                                         return 1;
1235                                 }
1236
1237                         } else if ( bindconf_parse( c->argv[ i ], &li->li_idassert ) ) {
1238                                 return 1;
1239                         }
1240                 }
1241                 break;
1242
1243         case LDAP_BACK_CFG_REBIND:
1244                 if ( c->argc == 1 || c->value_int ) {
1245                         li->li_flags |= LDAP_BACK_F_SAVECRED;
1246
1247                 } else {
1248                         li->li_flags &= ~LDAP_BACK_F_SAVECRED;
1249                 }
1250                 break;
1251
1252         case LDAP_BACK_CFG_CHASE:
1253                 if ( c->argc == 1 || c->value_int ) {
1254                         li->li_flags |= LDAP_BACK_F_CHASE_REFERRALS;
1255
1256                 } else {
1257                         li->li_flags &= ~LDAP_BACK_F_CHASE_REFERRALS;
1258                 }
1259                 break;
1260
1261         case LDAP_BACK_CFG_T_F:
1262                 i = verb_to_mask( c->argv[1], t_f_mode );
1263                 if ( BER_BVISNULL( &t_f_mode[i].word ) ) {
1264                         return 1;
1265                 }
1266                 li->li_flags &= ~LDAP_BACK_F_SUPPORT_T_F_MASK;
1267                 li->li_flags |= t_f_mode[i].mask;
1268                 break;
1269
1270         case LDAP_BACK_CFG_WHOAMI:
1271                 if ( c->argc == 1 || c->value_int ) {
1272                         li->li_flags |= LDAP_BACK_F_PROXY_WHOAMI;
1273                         load_extop( (struct berval *)&slap_EXOP_WHOAMI,
1274                                         0, ldap_back_exop_whoami );
1275
1276                 } else {
1277                         li->li_flags &= ~LDAP_BACK_F_PROXY_WHOAMI;
1278                 }
1279                 break;
1280
1281         case LDAP_BACK_CFG_TIMEOUT:
1282                 for ( i = 1; i < c->argc; i++ ) {
1283                         if ( isdigit( (unsigned char) c->argv[ i ][ 0 ] ) ) {
1284                                 int             j;
1285                                 unsigned        u;
1286
1287                                 if ( lutil_atoux( &u, c->argv[ i ], 0 ) != 0 ) {
1288                                         return 1;
1289                                 }
1290
1291                                 for ( j = 0; j < LDAP_BACK_OP_LAST; j++ ) {
1292                                         li->li_timeout[ j ] = u;
1293                                 }
1294
1295                                 continue;
1296                         }
1297
1298                         if ( slap_cf_aux_table_parse( c->argv[ i ], li->li_timeout, timeout_table, "slapd-ldap timeout" ) ) {
1299                                 return 1;
1300                         }
1301                 }
1302                 break;
1303
1304         case LDAP_BACK_CFG_IDLE_TIMEOUT: {
1305                 unsigned long   t;
1306
1307                 if ( lutil_parse_time( c->argv[ 1 ], &t ) != 0 ) {
1308                         snprintf( c->msg, sizeof( c->msg),
1309                                 "unable to parse idle timeout \"%s\"",
1310                                 c->argv[ 1 ] );
1311                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
1312                         return 1;
1313                 }
1314                 li->li_idle_timeout = (time_t)t;
1315                 } break;
1316
1317         case LDAP_BACK_CFG_CONN_TTL: {
1318                 unsigned long   t;
1319
1320                 if ( lutil_parse_time( c->argv[ 1 ], &t ) != 0 ) {
1321                         snprintf( c->msg, sizeof( c->msg),
1322                                 "unable to parse conn ttl\"%s\"",
1323                                 c->argv[ 1 ] );
1324                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
1325                         return 1;
1326                 }
1327                 li->li_conn_ttl = (time_t)t;
1328                 } break;
1329
1330         case LDAP_BACK_CFG_NETWORK_TIMEOUT: {
1331                 unsigned long   t;
1332
1333                 if ( lutil_parse_time( c->argv[ 1 ], &t ) != 0 ) {
1334                         snprintf( c->msg, sizeof( c->msg),
1335                                 "unable to parse network timeout \"%s\"",
1336                                 c->argv[ 1 ] );
1337                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
1338                         return 1;
1339                 }
1340                 li->li_network_timeout = (time_t)t;
1341                 } break;
1342
1343         case LDAP_BACK_CFG_VERSION:
1344                 if ( c->value_int != 0 && ( c->value_int < LDAP_VERSION_MIN || c->value_int > LDAP_VERSION_MAX ) ) {
1345                         snprintf( c->msg, sizeof( c->msg ),
1346                                 "unsupported version \"%s\" "
1347                                 "in \"protocol-version <version>\"",
1348                                 c->argv[ 1 ] );
1349                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
1350                         return 1;
1351                 }
1352
1353                 li->li_version = c->value_int;
1354                 break;
1355
1356         case LDAP_BACK_CFG_SINGLECONN:
1357                 if ( c->value_int ) {
1358                         li->li_flags |= LDAP_BACK_F_SINGLECONN;
1359
1360                 } else {
1361                         li->li_flags &= ~LDAP_BACK_F_SINGLECONN;
1362                 }
1363                 break;
1364
1365         case LDAP_BACK_CFG_REWRITE:
1366                 snprintf( c->msg, sizeof( c->msg ),
1367                         "rewrite/remap capabilities have been moved "
1368                         "to the \"rwm\" overlay; see slapo-rwm(5) "
1369                         "for details (hint: add \"overlay rwm\" "
1370                         "and prefix all directives with \"rwm-\")" );
1371                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
1372                 return 1;
1373
1374         default:
1375                 /* FIXME: try to catch inconsistencies */
1376                 assert( 0 );
1377                 break;
1378         }
1379
1380         return 0;
1381 }
1382
1383 int
1384 ldap_back_init_cf( BackendInfo *bi )
1385 {
1386         int                     rc;
1387         AttributeDescription    *ad = NULL;
1388         const char              *text;
1389
1390         /* Make sure we don't exceed the bits reserved for userland */
1391         config_check_userland( LDAP_BACK_CFG_LAST );
1392
1393         bi->bi_cf_ocs = ldapocs;
1394
1395         rc = config_register_schema( ldapcfg, ldapocs );
1396         if ( rc ) {
1397                 return rc;
1398         }
1399
1400         /* setup olcDbAclPasswd and olcDbIDAssertPasswd
1401          * to be base64-encoded when written in LDIF form;
1402          * basically, we don't care if it fails */
1403         rc = slap_str2ad( "olcDbACLPasswd", &ad, &text );
1404         if ( rc ) {
1405                 Debug( LDAP_DEBUG_ANY, "config_back_initialize: "
1406                         "warning, unable to get \"olcDbACLPasswd\" "
1407                         "attribute description: %d: %s\n",
1408                         rc, text, 0 );
1409         } else {
1410                 (void)ldif_must_b64_encode_register( ad->ad_cname.bv_val,
1411                         ad->ad_type->sat_oid );
1412         }
1413
1414         ad = NULL;
1415         rc = slap_str2ad( "olcDbIDAssertPasswd", &ad, &text );
1416         if ( rc ) {
1417                 Debug( LDAP_DEBUG_ANY, "config_back_initialize: "
1418                         "warning, unable to get \"olcDbIDAssertPasswd\" "
1419                         "attribute description: %d: %s\n",
1420                         rc, text, 0 );
1421         } else {
1422                 (void)ldif_must_b64_encode_register( ad->ad_cname.bv_val,
1423                         ad->ad_type->sat_oid );
1424         }
1425
1426         return 0;
1427 }
1428
1429
1430 static int
1431 ldap_back_exop_whoami(
1432                 Operation       *op,
1433                 SlapReply       *rs )
1434 {
1435         struct berval *bv = NULL;
1436
1437         if ( op->oq_extended.rs_reqdata != NULL ) {
1438                 /* no request data should be provided */
1439                 rs->sr_text = "no request data expected";
1440                 return rs->sr_err = LDAP_PROTOCOL_ERROR;
1441         }
1442
1443         Statslog( LDAP_DEBUG_STATS, "%s WHOAMI\n",
1444             op->o_log_prefix, 0, 0, 0, 0 );
1445
1446         rs->sr_err = backend_check_restrictions( op, rs,
1447                         (struct berval *)&slap_EXOP_WHOAMI );
1448         if( rs->sr_err != LDAP_SUCCESS ) return rs->sr_err;
1449
1450         /* if auth'd by back-ldap and request is proxied, forward it */
1451         if ( op->o_conn->c_authz_backend
1452                 && !strcmp( op->o_conn->c_authz_backend->be_type, "ldap" )
1453                 && !dn_match( &op->o_ndn, &op->o_conn->c_ndn ) )
1454         {
1455                 ldapconn_t      *lc;
1456                 LDAPControl c, *ctrls[2] = {NULL, NULL};
1457                 LDAPMessage *res;
1458                 Operation op2 = *op;
1459                 ber_int_t msgid;
1460                 int doretry = 1;
1461                 char *ptr;
1462
1463                 ctrls[0] = &c;
1464                 op2.o_ndn = op->o_conn->c_ndn;
1465                 lc = ldap_back_getconn(&op2, rs, LDAP_BACK_SENDERR);
1466                 if ( !lc || !ldap_back_dobind( lc, op, rs, LDAP_BACK_SENDERR ) ) {
1467                         return -1;
1468                 }
1469                 c.ldctl_oid = LDAP_CONTROL_PROXY_AUTHZ;
1470                 c.ldctl_iscritical = 1;
1471                 c.ldctl_value.bv_val = op->o_tmpalloc(
1472                         op->o_ndn.bv_len + STRLENOF( "dn:" ) + 1,
1473                         op->o_tmpmemctx );
1474                 c.ldctl_value.bv_len = op->o_ndn.bv_len + 3;
1475                 ptr = c.ldctl_value.bv_val;
1476                 ptr = lutil_strcopy( ptr, "dn:" );
1477                 ptr = lutil_strncopy( ptr, op->o_ndn.bv_val, op->o_ndn.bv_len );
1478                 ptr[ 0 ] = '\0';
1479
1480 retry:
1481                 rs->sr_err = ldap_whoami( lc->lc_ld, ctrls, NULL, &msgid );
1482                 if ( rs->sr_err == LDAP_SUCCESS ) {
1483                         if ( ldap_result( lc->lc_ld, msgid, LDAP_MSG_ALL, NULL, &res ) == -1 ) {
1484                                 ldap_get_option( lc->lc_ld, LDAP_OPT_ERROR_NUMBER,
1485                                         &rs->sr_err );
1486                                 if ( rs->sr_err == LDAP_SERVER_DOWN && doretry ) {
1487                                         doretry = 0;
1488                                         if ( ldap_back_retry( &lc, op, rs, LDAP_BACK_SENDERR ) ) {
1489                                                 goto retry;
1490                                         }
1491                                 }
1492
1493                         } else {
1494                                 /* NOTE: are we sure "bv" will be malloc'ed
1495                                  * with the appropriate memory? */
1496                                 rs->sr_err = ldap_parse_whoami( lc->lc_ld, res, &bv );
1497                                 ldap_msgfree(res);
1498                         }
1499                 }
1500                 op->o_tmpfree( c.ldctl_value.bv_val, op->o_tmpmemctx );
1501                 if ( rs->sr_err != LDAP_SUCCESS ) {
1502                         rs->sr_err = slap_map_api2result( rs );
1503                 }
1504
1505                 if ( lc != NULL ) {
1506                         ldap_back_release_conn( &op2, rs, lc );
1507                 }
1508
1509         } else {
1510                 /* else just do the same as before */
1511                 bv = (struct berval *) ch_malloc( sizeof( struct berval ) );
1512                 if ( !BER_BVISEMPTY( &op->o_dn ) ) {
1513                         bv->bv_len = op->o_dn.bv_len + STRLENOF( "dn:" );
1514                         bv->bv_val = ch_malloc( bv->bv_len + 1 );
1515                         AC_MEMCPY( bv->bv_val, "dn:", STRLENOF( "dn:" ) );
1516                         AC_MEMCPY( &bv->bv_val[ STRLENOF( "dn:" ) ], op->o_dn.bv_val,
1517                                 op->o_dn.bv_len );
1518                         bv->bv_val[ bv->bv_len ] = '\0';
1519
1520                 } else {
1521                         bv->bv_len = 0;
1522                         bv->bv_val = NULL;
1523                 }
1524         }
1525
1526         rs->sr_rspdata = bv;
1527         return rs->sr_err;
1528 }
1529
1530