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

   1 /* config.c - relay backend configuration file routine */
   2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   3  *
   4  * Copyright 2004-2006 The OpenLDAP Foundation.
   5  * Portions Copyright 2004 Pierangelo Masarati.
   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 /* ACKNOWLEDGEMENTS:
  17  * This work was initially developed by Pierangelo Masaratifor inclusion
  18  * in OpenLDAP Software.
  19  */
  20
  21 #include "portable.h"
  22
  23 #include <stdio.h>
  24
  25 #include "slap.h"
  26 #include "back-relay.h"
  27
  28 int
  29 relay_back_db_config(
  30         BackendDB       *be,
  31         const char      *fname,
  32         int             lineno,
  33         int             argc,
  34         char            **argv )
  35 {
  36         relay_back_info *ri = (struct relay_back_info *)be->be_private;
  37
  38         if ( ri == NULL ) {
  39                 Log2( LDAP_DEBUG_ANY, LDAP_LEVEL_ERR,
  40                         "%s: line %d: relay backend info is null.\n",
  41                         fname, lineno );
  42                 return 1;
  43         }
  44
  45         /* real naming context */
  46         if ( strcasecmp( argv[ 0 ], "relay" ) == 0 ) {
  47                 struct berval   dn, ndn, pdn;
  48                 int             rc;
  49                 BackendDB       *bd;
  50
  51                 switch ( argc ) {
  52                 case 3:
  53                         if ( strcmp( argv[ 2 ], "massage" ) != 0 ) {
  54                                 Log3( LDAP_DEBUG_ANY, LDAP_LEVEL_ERR,
  55                                         "%s: line %d: "
  56                                         "unknown arg[#2]=\"%s\" "
  57                                         "in \"relay <dn> [massage]\" line\n",
  58                                         fname, lineno, argv[ 2 ] );
  59                                 return 1;
  60                         }
  61
  62                         if ( be->be_nsuffix == NULL ) {
  63                                 Log2( LDAP_DEBUG_ANY, LDAP_LEVEL_ERR,
  64                                         "%s: line %d: "
  65                                         "\"relay\" directive "
  66                                         "must appear after \"suffix\".\n",
  67                                         fname, lineno );
  68                                 return 1;
  69                         }
  70
  71                         if ( !BER_BVISNULL( &be->be_nsuffix[ 1 ] ) ) {
  72                                 Log2( LDAP_DEBUG_ANY, LDAP_LEVEL_ERR,
  73                                         "%s: line %d: "
  74                                         "relayng of multiple suffix "
  75                                         "database not supported.\n",
  76                                         fname, lineno );
  77                                 return 1;
  78                         }
  79                         /* fallthru */
  80
  81                 case 2:
  82                         break;
  83
  84                 case 1:
  85                         Log2( LDAP_DEBUG_ANY, LDAP_LEVEL_ERR,
  86                                 "%s: line %d: missing relay suffix "
  87                                 "in \"relay <dn> [massage]\" line.\n",
  88                                 fname, lineno );
  89                         return 1;
  90
  91                 default:
  92                         Log2( LDAP_DEBUG_ANY, LDAP_LEVEL_ERR,
  93                                 "%s: line %d: extra cruft "
  94                                 "in \"relay <dn> [massage]\" line.\n",
  95                                 fname, lineno );
  96                         return 1;
  97                 }
  98
  99                 if ( !BER_BVISNULL( &ri->ri_realsuffix ) ) {
 100                         Log2( LDAP_DEBUG_ANY, LDAP_LEVEL_ERR,
 101                                 "%s: line %d: "
 102                                 "relay dn already specified.\n",
 103                                 fname, lineno );
 104                         return 1;
 105                 }
 106
 107                 /* The man page says that the "relay" directive
 108                  * automatically instantiates slapo-rwm; I don't
 109                  * like this very much any more, I'd prefer to
 110                  * have automatic instantiation only when "massage"
 111                  * is specified, so one has better control on
 112                  * where the overlay gets instantiated, but this
 113                  * would break compatibility.  One can still control
 114                  * where the overlay is instantiated by moving
 115                  * around the "relay" directive, although this could
 116                  * make slapd.conf a bit confusing. */
 117                 if ( overlay_config( be, "rwm" ) ) {
 118                         Log2( LDAP_DEBUG_ANY, LDAP_LEVEL_ERR,
 119                                 "%s: line %d: unable to install "
 120                                 "rwm overlay "
 121                                 "in \"relay <dn> [massage]\" line\n",
 122                                 fname, lineno );
 123                         return 1;
 124                 }
 125
 126                 dn.bv_val = argv[ 1 ];
 127                 dn.bv_len = strlen( argv[ 1 ] );
 128                 rc = dnPrettyNormal( NULL, &dn, &pdn, &ndn, NULL );
 129                 if ( rc != LDAP_SUCCESS ) {
 130                         Log3( LDAP_DEBUG_ANY, LDAP_LEVEL_ERR,
 131                                 "%s: line %d: "
 132                                 "relay dn \"%s\" is invalid "
 133                                 "in \"relay <dn> [massage]\" line\n",
 134                                 fname, lineno, argv[ 1 ] );
 135                         return 1;
 136                 }
 137
 138                 bd = select_backend( &ndn, 0, 1 );
 139                 if ( bd == NULL ) {
 140                         Log3( LDAP_DEBUG_ANY, LDAP_LEVEL_ERR,
 141                                 "%s: line %d: "
 142                                 "cannot find database "
 143                                 "of relay dn \"%s\" "
 144                                 "in \"relay <dn> [massage]\" line\n",
 145                                 fname, lineno, argv[ 1 ] );
 146                         rc = 1;
 147                         goto relay_done;
 148
 149                 } else if ( bd->be_private == be->be_private ) {
 150                         Log3( LDAP_DEBUG_ANY, LDAP_LEVEL_ERR,
 151                                 "%s: line %d: "
 152                                 "relay dn \"%s\" would call self "
 153                                 "in \"relay <dn> [massage]\" line\n",
 154                                 fname, lineno, pdn.bv_val );
 155                         rc = 1;
 156                         goto relay_done;
 157                 }
 158
 159                 ri->ri_realsuffix = ndn;
 160
 161                 if ( argc == 3 ) {
 162                         char    *cargv[ 4 ];
 163
 164                         cargv[ 0 ] = "rwm-suffixmassage";
 165                         cargv[ 1 ] = be->be_suffix[0].bv_val;
 166                         cargv[ 2 ] = pdn.bv_val;
 167                         cargv[ 3 ] = NULL;
 168
 169                         rc = be->be_config( be, fname, lineno, 3, cargv );
 170                 }
 171
 172 relay_done:;
 173                 ch_free( pdn.bv_val );
 174
 175                 return rc;
 176         }
 177
 178         /* anything else */
 179         return SLAP_CONF_UNKNOWN;
 180 }
 181