]> git.sur5r.net Git - openldap/blobdiff - servers/slapd/root_dse.c
make additional checking optional (more on ITS#5860)
[openldap] / servers / slapd / root_dse.c
index 907affc302d4d0c842626bfb611d9fb26985eeb5..aa7437e9a2e4d5f9c0a06b7aa79c5a3304695e13 100644 (file)
@@ -2,7 +2,7 @@
 /* $OpenLDAP$ */
 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
  *
- * Copyright 1999-2005 The OpenLDAP Foundation.
+ * Copyright 1999-2008 The OpenLDAP Foundation.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
 #include "slapi/slapi.h"
 #endif
 
-static struct berval supportedFeatures[] = {
-       BER_BVC(LDAP_FEATURE_ALL_OP_ATTRS),                     /* All Op Attrs (+) */
+static struct berval   builtin_supportedFeatures[] = {
+       BER_BVC(LDAP_FEATURE_MODIFY_INCREMENT),         /* Modify/increment */
+       BER_BVC(LDAP_FEATURE_ALL_OP_ATTRS),             /* All Op Attrs (+) */
        BER_BVC(LDAP_FEATURE_OBJECTCLASS_ATTRS),        /* OCs in Attrs List (@class) */
        BER_BVC(LDAP_FEATURE_ABSOLUTE_FILTERS),         /* (&) and (|) search filters */
-       BER_BVC(LDAP_FEATURE_LANGUAGE_TAG_OPTIONS), /* Language Tag Options */
-       BER_BVC(LDAP_FEATURE_LANGUAGE_RANGE_OPTIONS),/* Language Range Options */
-#ifdef LDAP_FEATURE_SUBORDINATE_SCOPE
+       BER_BVC(LDAP_FEATURE_LANGUAGE_TAG_OPTIONS),     /* Language Tag Options */
+       BER_BVC(LDAP_FEATURE_LANGUAGE_RANGE_OPTIONS),   /* Language Range Options */
+#ifdef LDAP_DEVEL
        BER_BVC(LDAP_FEATURE_SUBORDINATE_SCOPE),        /* "children" search scope */
 #endif
-#ifdef LDAP_FEATURE_MODIFY_INCREMENT
-       BER_BVC(LDAP_FEATURE_MODIFY_INCREMENT),         /* Modify/increment */
-#endif
-       {0,NULL}
+       BER_BVNULL
 };
+static struct berval   *supportedFeatures;
 
 static Entry   *usr_attr = NULL;
 
+/*
+ * allow modules to register functions that muck with the root DSE entry
+ */
+
+typedef struct entry_info_t {
+       SLAP_ENTRY_INFO_FN      func;
+       void                    *arg;
+       struct entry_info_t     *next;
+} entry_info_t;
+
+static entry_info_t *extra_info;
+
+int
+entry_info_register( SLAP_ENTRY_INFO_FN func, void *arg )
+{
+       entry_info_t    *ei = ch_calloc( 1, sizeof( entry_info_t ) );
+
+       ei->func = func;
+       ei->arg = arg;
+
+       ei->next = extra_info;
+       extra_info = ei;
+
+       return 0;
+}
+
+int
+entry_info_unregister( SLAP_ENTRY_INFO_FN func, void *arg )
+{
+       entry_info_t    **eip;
+
+       for ( eip = &extra_info; *eip != NULL; eip = &(*eip)->next ) {
+               if ( (*eip)->func == func && (*eip)->arg == arg ) {
+                       entry_info_t    *ei = *eip;
+
+                       *eip = ei->next;
+
+                       ch_free( ei );
+
+                       return 0;
+               }
+       }
+
+       return -1;
+}
+
+void
+entry_info_destroy( void )
+{
+       entry_info_t    **eip;
+
+       for ( eip = &extra_info; *eip != NULL;  ) {
+               entry_info_t    *ei = *eip;
+
+               eip = &(*eip)->next;
+
+               ch_free( ei );
+       }
+}
+
+/*
+ * Allow modules to register supported features
+ */
+
+static int
+supported_feature_init( void )
+{
+       int             i;
+
+       if ( supportedFeatures != NULL ) {
+               return 0;
+       }
+
+       for ( i = 0; !BER_BVISNULL( &builtin_supportedFeatures[ i ] ); i++ )
+               ;
+
+       supportedFeatures = ch_calloc( sizeof( struct berval ), i + 1 );
+       if ( supportedFeatures == NULL ) {
+               return -1;
+       }
+
+       for ( i = 0; !BER_BVISNULL( &builtin_supportedFeatures[ i ] ); i++ ) {
+               ber_dupbv( &supportedFeatures[ i ], &builtin_supportedFeatures[ i ] );
+       }
+       BER_BVZERO( &supportedFeatures[ i ] );
+
+       return 0;
+}
+
+int
+supported_feature_destroy( void )
+{
+       int             i;
+
+       if ( supportedFeatures == NULL ) {
+               return 0;
+       }
+       
+       for ( i = 0; !BER_BVISNULL( &supportedFeatures[ i ] ); i++ ) {
+               ch_free( supportedFeatures[ i ].bv_val );
+       }
+
+       ch_free( supportedFeatures );
+       supportedFeatures = NULL;
+
+       return 0;
+}
+
+int
+supported_feature_load( struct berval *f )
+{
+       struct berval   *tmp;
+       int             i;
+
+       supported_feature_init();
+
+       for ( i = 0; !BER_BVISNULL( &supportedFeatures[ i ] ); i++ )
+               ;
+
+       tmp = ch_realloc( supportedFeatures, sizeof( struct berval ) * ( i + 2 ) );
+       if ( tmp == NULL ) {
+               return -1;
+       }
+       supportedFeatures = tmp;
+
+       ber_dupbv( &supportedFeatures[ i ], f );
+       BER_BVZERO( &supportedFeatures[ i + 1 ] );
+
+       return 0;
+}
+
 int
 root_dse_info(
        Connection *conn,
@@ -52,8 +182,10 @@ root_dse_info(
        const char **text )
 {
        Entry           *e;
-       struct berval val, *bv;
-       struct berval nval;
+       struct berval val;
+#ifdef LDAP_SLAPI
+       struct berval *bv;
+#endif
        int             i, j;
        char ** supportedSASLMechanisms;
        BackendDB *be;
@@ -64,8 +196,10 @@ root_dse_info(
                = slap_schema.si_ad_objectClass;
        AttributeDescription *ad_namingContexts
                = slap_schema.si_ad_namingContexts;
+#ifdef LDAP_SLAPI
        AttributeDescription *ad_supportedExtension
                = slap_schema.si_ad_supportedExtension;
+#endif
        AttributeDescription *ad_supportedLDAPVersion
                = slap_schema.si_ad_supportedLDAPVersion;
        AttributeDescription *ad_supportedSASLMechanisms
@@ -79,11 +213,10 @@ root_dse_info(
        AttributeDescription *ad_ref
                = slap_schema.si_ad_ref;
 
-       e = (Entry *) SLAP_CALLOC( 1, sizeof(Entry) );
-
+       e = entry_alloc();
        if( e == NULL ) {
                Debug( LDAP_DEBUG_ANY,
-                       "root_dse_info: SLAP_CALLOC failed", 0, 0, 0 );
+                       "root_dse_info: entry_alloc failed", 0, 0, 0 );
                return LDAP_OTHER;
        }
 
@@ -99,17 +232,20 @@ root_dse_info(
 
        e->e_private = NULL;
 
+       /* FIXME: is this really needed? */
        BER_BVSTR( &val, "top" );
        if( attr_merge_one( e, ad_objectClass, &val, NULL ) ) {
+fail:
+               entry_free( e );
                return LDAP_OTHER;
        }
 
        BER_BVSTR( &val, "OpenLDAProotDSE" );
        if( attr_merge_one( e, ad_objectClass, &val, NULL ) ) {
-               return LDAP_OTHER;
+               goto fail;
        }
        if( attr_merge_one( e, ad_structuralObjectClass, &val, NULL ) ) {
-               return LDAP_OTHER;
+               goto fail;
        }
 
        LDAP_STAILQ_FOREACH( be, &backendDB, be_next ) {
@@ -123,7 +259,7 @@ root_dse_info(
                                        &be->be_suffix[0],
                                        &be->be_nsuffix[0] ) )
                        {
-                               return LDAP_OTHER;
+                               goto fail;
                        }
                        continue;
                }
@@ -132,7 +268,7 @@ root_dse_info(
                                        &be->be_suffix[0],
                                        & be->be_nsuffix[0] ) )
                        {
-                               return LDAP_OTHER;
+                               goto fail;
                        }
                        continue;
                }
@@ -144,7 +280,7 @@ root_dse_info(
                                        &be->be_suffix[j],
                                        &be->be_nsuffix[0] ) )
                        {
-                               return LDAP_OTHER;
+                               goto fail;
                        }
                }
        }
@@ -153,26 +289,30 @@ root_dse_info(
 
        /* supportedControl */
        if ( controls_root_dse_info( e ) != 0 ) {
-               return LDAP_OTHER;
+               goto fail;
        }
 
        /* supportedExtension */
        if ( exop_root_dse_info( e ) != 0 ) {
-               return LDAP_OTHER;
+               goto fail;
        }
 
 #ifdef LDAP_SLAPI
        /* netscape supportedExtension */
        for ( i = 0; (bv = slapi_int_get_supported_extop(i)) != NULL; i++ ) {
                if( attr_merge_one( e, ad_supportedExtension, bv, NULL ) ) {
-                       return LDAP_OTHER;
+                       goto fail;
                }
        }
 #endif /* LDAP_SLAPI */
 
        /* supportedFeatures */
+       if ( supportedFeatures == NULL ) {
+               supported_feature_init();
+       }
+
        if( attr_merge( e, ad_supportedFeatures, supportedFeatures, NULL ) ) {
-               return LDAP_OTHER;
+               goto fail;
        }
 
        /* supportedLDAPVersion */
@@ -182,12 +322,12 @@ root_dse_info(
                 * clients.
                 */
        for ( i=LDAP_VERSION3; i<=LDAP_VERSION_MAX; i++ ) {
-               char buf[BUFSIZ];
+               char buf[sizeof("255")];
                snprintf(buf, sizeof buf, "%d", i);
                val.bv_val = buf;
                val.bv_len = strlen( val.bv_val );
                if( attr_merge_one( e, ad_supportedLDAPVersion, &val, NULL ) ) {
-                       return LDAP_OTHER;
+                       goto fail;
                }
        }
 
@@ -199,7 +339,8 @@ root_dse_info(
                        val.bv_val = supportedSASLMechanisms[i];
                        val.bv_len = strlen( val.bv_val );
                        if( attr_merge_one( e, ad_supportedSASLMechanisms, &val, NULL ) ) {
-                               return LDAP_OTHER;
+                               ldap_charray_free( supportedSASLMechanisms );
+                               goto fail;
                        }
                }
                ldap_charray_free( supportedSASLMechanisms );
@@ -207,7 +348,7 @@ root_dse_info(
 
        if ( default_referral != NULL ) {
                if( attr_merge( e, ad_ref, default_referral, NULL /* FIXME */ ) ) {
-                       return LDAP_OTHER;
+                       goto fail;
                }
        }
 
@@ -217,40 +358,66 @@ root_dse_info(
                        if( attr_merge( e, a->a_desc, a->a_vals,
                                (a->a_nvals == a->a_vals) ? NULL : a->a_nvals ) )
                        {
-                               return LDAP_OTHER;
+                               goto fail;
                        }
                }
        }
 
+       if ( extra_info ) {
+               entry_info_t    *ei = extra_info;
+
+               for ( ; ei; ei = ei->next ) {
+                       ei->func( ei->arg, e );
+               }
+       }
+
        *entry = e;
        return LDAP_SUCCESS;
 }
 
+int
+root_dse_init( void )
+{
+       return 0;
+}
+
+int
+root_dse_destroy( void )
+{
+       if ( usr_attr ) {
+               entry_free( usr_attr );
+               usr_attr = NULL;
+       }
+
+       return 0;
+}
+
 /*
  * Read the entries specified in fname and merge the attributes
  * to the user defined rootDSE. Note thaat if we find any errors
  * what so ever, we will discard the entire entries, print an
  * error message and return.
  */
-int read_root_dse_file( const char *fname )
+int
+root_dse_read_file( const char *fname )
 {
-       FILE    *fp;
+       struct LDIFFP   *fp;
        int rc = 0, lineno = 0, lmax = 0;
        char    *buf = NULL;
 
-       if ( (fp = fopen( fname, "r" )) == NULL ) {
+       if ( (fp = ldif_open( fname, "r" )) == NULL ) {
                Debug( LDAP_DEBUG_ANY,
-                       "could not open rootdse attr file \"%s\" - absolute path?\n",
+                       "root_dse_read_file: could not open rootdse attr file \"%s\" - absolute path?\n",
                        fname, 0, 0 );
                perror( fname );
                return EXIT_FAILURE;
        }
 
-       usr_attr = (Entry *) SLAP_CALLOC( 1, sizeof(Entry) );
+       usr_attr = entry_alloc();
        if( usr_attr == NULL ) {
                Debug( LDAP_DEBUG_ANY,
-                       "read_root_dse_file: SLAP_CALLOC failed", 0, 0, 0 );
-               fclose( fp );
+                       "root_dse_read_file: entry_alloc failed", 0, 0, 0 );
+               ldif_close( fp );
                return LDAP_OTHER;
        }
        usr_attr->e_attrs = NULL;
@@ -260,17 +427,19 @@ int read_root_dse_file( const char *fname )
                Attribute *a;
 
                if( e == NULL ) {
-                       fprintf( stderr, "root_dse: could not parse entry (line=%d)\n",
-                               lineno );
+                       Debug( LDAP_DEBUG_ANY, "root_dse_read_file: "
+                               "could not parse entry (file=\"%s\" line=%d)\n",
+                               fname, lineno, 0 );
                        rc = EXIT_FAILURE;
                        break;
                }
 
                /* make sure the DN is the empty DN */
                if( e->e_nname.bv_len ) {
-                       fprintf( stderr,
-                               "root_dse: invalid rootDSE - dn=\"%s\" (line=%d)\n",
-                               e->e_dn, lineno );
+                       Debug( LDAP_DEBUG_ANY,
+                               "root_dse_read_file: invalid rootDSE "
+                               "- dn=\"%s\" (file=\"%s\" line=%d)\n",
+                               e->e_dn, fname, lineno );
                        entry_free( e );
                        rc = EXIT_FAILURE;
                        break;
@@ -302,46 +471,31 @@ int read_root_dse_file( const char *fname )
 
        ch_free( buf );
 
-       fclose( fp );
+       ldif_close( fp );
 
-       Debug(LDAP_DEBUG_CONFIG, "rootDSE file %s read.\n", fname, 0, 0);
+       Debug(LDAP_DEBUG_CONFIG, "rootDSE file=\"%s\" read.\n", fname, 0, 0);
        return rc;
 }
 
 int
 slap_discover_feature(
-       const char      *uri,
-       int             version,
+       slap_bindconf   *sb,
        const char      *attr,
        const char      *val )
 {
-       LDAP            *ld;
+       LDAP            *ld = NULL;
        LDAPMessage     *res = NULL, *entry;
        int             rc, i;
-       struct berval   cred = BER_BVC( "" ),
-                       bv_val,
+       struct berval   bv_val,
                        **values = NULL;
        char            *attrs[ 2 ] = { NULL, NULL };
 
-       ber_str2bv( val, 0, 0, &bv_val );
-       attrs[ 0 ] = attr;
-
-       rc = ldap_initialize( &ld, uri );
-       if ( rc != LDAP_SUCCESS ) {
-               return rc;
-       }
-
-       rc = ldap_set_option( ld, LDAP_OPT_PROTOCOL_VERSION, &version );
-       if ( rc != LDAP_SUCCESS ) {
-               goto done;
-       }
-
-       rc = ldap_sasl_bind_s( ld, "", LDAP_SASL_SIMPLE,
-                       &cred, NULL, NULL, NULL );
+       rc = slap_client_connect( &ld, sb );
        if ( rc != LDAP_SUCCESS ) {
                goto done;
        }
 
+       attrs[ 0 ] = (char *) attr;
        rc = ldap_search_ext_s( ld, "", LDAP_SCOPE_BASE, "(objectClass=*)",
                        attrs, 0, NULL, NULL, NULL, 0, &res );
        if ( rc != LDAP_SUCCESS ) {
@@ -359,6 +513,7 @@ slap_discover_feature(
                goto done;
        }
 
+       ber_str2bv( val, 0, 0, &bv_val );
        for ( i = 0; values[ i ] != NULL; i++ ) {
                if ( bvmatch( &bv_val, values[ i ] ) ) {
                        rc = LDAP_COMPARE_TRUE;