From 01385acc2a4265ac03bff0cc141cb37211b07b10 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Julio=20S=C3=A1nchez=20Fern=C3=A1ndez?=
 <jsanchez@openldap.org>
Date: Mon, 19 Apr 1999 18:21:53 +0000
Subject: [PATCH] Beginning of ROOT DSE support

---
 servers/slapd/Makefile.in  |  6 ++--
 servers/slapd/proto-slap.h |  1 +
 servers/slapd/root_dse.c   | 70 ++++++++++++++++++++++++++++++++++++++
 servers/slapd/search.c     |  4 +++
 4 files changed, 79 insertions(+), 2 deletions(-)
 create mode 100644 servers/slapd/root_dse.c

diff --git a/servers/slapd/Makefile.in b/servers/slapd/Makefile.in
index 11030fac1a..2a9a0fbe17 100644
--- a/servers/slapd/Makefile.in
+++ b/servers/slapd/Makefile.in
@@ -10,14 +10,16 @@ SRCS	= main.c daemon.c connection.c search.c filter.c add.c charray.c \
 		value.c ava.c bind.c unbind.c abandon.c filterentry.c \
 		phonetic.c acl.c str2filter.c aclparse.c init.c user.c \
 		repl.c lock.c \
-		suffixalias.c schema.c schemaparse.c monitor.c configinfo.c
+		suffixalias.c schema.c schemaparse.c monitor.c configinfo.c \
+		root_dse.c
 OBJS	= main.o daemon.o connection.o search.o filter.o add.o charray.o \
 		attr.o entry.o config.o backend.o result.o operation.o \
 		dn.o compare.o modify.o delete.o modrdn.o ch_malloc.o \
 		value.o ava.o bind.o unbind.o abandon.o filterentry.o \
 		phonetic.o acl.o str2filter.o aclparse.o init.o user.o \
 		repl.o lock.o \
-		suffixalias.o schema.o schemaparse.o monitor.o configinfo.o
+		suffixalias.o schema.o schemaparse.o monitor.o configinfo.o \
+		root_dse.o
 
 LDAP_INCDIR= ../../include
 LDAP_LIBDIR= ../../libraries
diff --git a/servers/slapd/proto-slap.h b/servers/slapd/proto-slap.h
index aeb502a41c..696691dd18 100644
--- a/servers/slapd/proto-slap.h
+++ b/servers/slapd/proto-slap.h
@@ -329,6 +329,7 @@ extern void	slap_set_shutdown LDAP_P((int sig));
 extern void	slap_do_nothing   LDAP_P((int sig));
 
 extern void	config_info LDAP_P((Connection *conn, Operation *op));
+extern void	root_dse_info LDAP_P((Connection *conn, Operation *op));
 extern void	do_abandon LDAP_P((Connection *conn, Operation *op));
 extern void	do_add LDAP_P((Connection *conn, Operation *op));
 extern void	do_bind LDAP_P((Connection *conn, Operation *op));
diff --git a/servers/slapd/root_dse.c b/servers/slapd/root_dse.c
new file mode 100644
index 0000000000..56cc7ad593
--- /dev/null
+++ b/servers/slapd/root_dse.c
@@ -0,0 +1,70 @@
+/* root_dse.c - Provides the ROOT DSA-Specific Entry
+ *
+ * Copyright 1999 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted only
+ * as authorized by the OpenLDAP Public License.  A copy of this
+ * license is available at http://www.OpenLDAP.org/license.html or
+ * in file LICENSE in the top-level directory of the distribution.
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+
+#include "ldapconfig.h"
+#include "slap.h"
+
+void
+root_dse_info( Connection *conn, Operation *op )
+{
+	Entry		*e;
+	char		buf[BUFSIZ];
+	struct berval	val;
+	struct berval	*vals[2];
+	int		i, j;
+
+	vals[0] = &val;
+	vals[1] = NULL;
+
+	e = (Entry *) ch_calloc( 1, sizeof(Entry) );
+
+	e->e_attrs = NULL;
+	e->e_dn = ch_strdup( LDAP_ROOT_DSE );
+	e->e_ndn = dn_normalize_case( ch_strdup( LDAP_ROOT_DSE ));
+	e->e_private = NULL;
+
+	for ( i = 0; i < nbackends; i++ ) {
+		for ( j = 0; backends[i].be_suffix[j] != NULL; j++ ) {
+			strcpy( buf, backends[i].be_suffix[j] );
+			val.bv_val = buf;
+			val.bv_len = strlen( buf );
+			attr_merge( e, "namingContexts", vals );
+		}
+	}
+
+#if defined( SLAPD_SCHEMA_DN )
+	val.bv_val = ch_strdup( SLAPD_SCHEMA_DN );
+	val.bv_len = strlen( va.bv_val );
+	attr_merge( e, "subschemaSubentry", vals );
+	ldap_memfree( val.bv_val );
+#endif
+
+	/* altServer unsupported */
+	/* supportedExtension: no extensions supported */
+	/* supportedControl: no controls supported */
+
+	for ( i=LDAP_VERSION_MIN; i<=LDAP_VERSION_MAX; i++ ) {
+		sprintf(buf,"%d",i);
+		val.bv_val = buf;
+		val.bv_len = strlen( buf );
+		attr_merge( e, "supportedLDAPVersion", vals );
+	}
+	
+	send_search_entry( &backends[0], conn, op, e, NULL, 0 );
+	send_ldap_search_result( conn, op, LDAP_SUCCESS, NULL, NULL, 1 );
+
+	entry_free( e );
+}
+
diff --git a/servers/slapd/search.c b/servers/slapd/search.c
index 3c1bce5336..0b76e934db 100644
--- a/servers/slapd/search.c
+++ b/servers/slapd/search.c
@@ -126,6 +126,10 @@ do_search(
 			goto return_results;
 		}
 #endif
+		if ( strcmp( base, LDAP_ROOT_DSE ) == 0 ) {
+			root_dse_info( conn, op );
+			goto return_results;
+		}
 	}
 #endif /* monitor or config or schema dn */
 
-- 
2.39.5