X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=servers%2Fslapd%2Fback-null%2Fnull.c;h=eb4f3c71c9c3d4829534979a8c7fdeb3ef906163;hb=e229b7c3984c026a8b5b84dfe8355801d21f4a3b;hp=94c097d3418a1f95add08d7c2db0917de78cd1fa;hpb=0f447a75c415dbf4eabe5e54cf827b89d2741690;p=openldap

diff --git a/servers/slapd/back-null/null.c b/servers/slapd/back-null/null.c
index 94c097d341..eb4f3c71c9 100644
--- a/servers/slapd/back-null/null.c
+++ b/servers/slapd/back-null/null.c
@@ -2,7 +2,7 @@
 /* $OpenLDAP$ */
 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
  *
- * Copyright 2002-2003 The OpenLDAP Foundation.
+ * Copyright 2002-2009 The OpenLDAP Foundation.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -14,7 +14,7 @@
  * <http://www.OpenLDAP.org/license.html>.
  */
 /* ACKNOWLEDGEMENTS:
- * This work was originally developed by Howard Chu for inclusion
+ * This work was originally developed by Hallvard Furuseth for inclusion
  * in OpenLDAP Software.
  */
 
@@ -24,52 +24,272 @@
 #include <ac/string.h>
 
 #include "slap.h"
-#include "external.h"
+#include "config.h"
 
 struct null_info {
-	int bind_allowed;
+	int	ni_bind_allowed;
+	ID	ni_nextid;
 };
 
-int
+
+/* LDAP operations */
+
+static int
 null_back_bind( Operation *op, SlapReply *rs )
 {
 	struct null_info *ni = (struct null_info *) op->o_bd->be_private;
 
-	if ( ni->bind_allowed ) {
+	if ( ni->ni_bind_allowed || be_isroot_pw( op ) ) {
 		/* front end will send result on success (0) */
-		return 0;
+		return LDAP_SUCCESS;
 	}
 
 	rs->sr_err = LDAP_INVALID_CREDENTIALS;
 	send_ldap_result( op, rs );
 
-	return 1;
+	return rs->sr_err;
+}
+
+
+static int
+null_back_respond( Operation *op, SlapReply *rs, int rc )
+{
+	LDAPControl ctrl[SLAP_MAX_RESPONSE_CONTROLS], *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
+	int c = 0;
+
+	BerElementBuffer	ps_berbuf;
+	BerElement		*ps_ber = NULL;
+	LDAPControl		**preread_ctrl = NULL,
+				**postread_ctrl = NULL;
+
+	rs->sr_err = LDAP_OTHER;
+
+	/* this comes first, as in case of assertion failure
+	 * any further processing must stop */
+	if ( get_assert( op ) ) {
+		rs->sr_err = LDAP_ASSERTION_FAILED;
+		goto respond;
+	}
+
+	if ( op->o_preread ) {
+		Entry		e = { 0 };
+
+		switch ( op->o_tag ) {
+		case LDAP_REQ_MODIFY:
+		case LDAP_REQ_RENAME:
+		case LDAP_REQ_DELETE:
+			e.e_name = op->o_req_dn;
+			e.e_nname = op->o_req_ndn;
+
+			preread_ctrl = &ctrls[c];
+			*preread_ctrl = NULL;
+
+			if ( slap_read_controls( op, rs, &e,
+				&slap_pre_read_bv, preread_ctrl ) )
+			{
+				preread_ctrl = NULL;
+
+				Debug( LDAP_DEBUG_TRACE,
+					"<=- null_back_respond: pre-read "
+					"failed!\n", 0, 0, 0 );
+
+				if ( op->o_preread & SLAP_CONTROL_CRITICAL ) {
+					/* FIXME: is it correct to abort
+					 * operation if control fails? */
+					goto respond;
+				}
+
+			} else {
+				c++;
+			}
+			break;
+		}
+	}
+
+	if ( op->o_postread ) {
+		Entry		e = { 0 };
+
+		switch ( op->o_tag ) {
+		case LDAP_REQ_ADD:
+		case LDAP_REQ_MODIFY:
+		case LDAP_REQ_RENAME:
+			if ( op->o_tag == LDAP_REQ_ADD ) {
+				e.e_name = op->ora_e->e_name;
+				e.e_nname = op->ora_e->e_nname;
+
+			} else {
+				e.e_name = op->o_req_dn;
+				e.e_nname = op->o_req_ndn;
+			}
+
+			postread_ctrl = &ctrls[c];
+			*postread_ctrl = NULL;
+
+			if ( slap_read_controls( op, rs, &e,
+				&slap_post_read_bv, postread_ctrl ) )
+			{
+				postread_ctrl = NULL;
+
+				Debug( LDAP_DEBUG_TRACE,
+					"<=- null_back_respond: post-read "
+					"failed!\n", 0, 0, 0 );
+
+				if ( op->o_postread & SLAP_CONTROL_CRITICAL ) {
+					/* FIXME: is it correct to abort
+					 * operation if control fails? */
+					goto respond;
+				}
+
+			} else {
+				c++;
+			}
+			break;
+		}
+	}
+
+	if ( op->o_noop ) {
+		switch ( op->o_tag ) {
+		case LDAP_REQ_ADD:
+		case LDAP_REQ_MODIFY:
+		case LDAP_REQ_RENAME:
+		case LDAP_REQ_DELETE:
+		case LDAP_REQ_EXTENDED:
+			rc = LDAP_X_NO_OPERATION;
+			break;
+		}
+	}
+
+	if ( get_pagedresults( op ) > SLAP_CONTROL_IGNORED ) {
+		struct berval		cookie = BER_BVC( "" );
+
+		/* should not be here... */
+		assert( op->o_tag == LDAP_REQ_SEARCH );
+
+		ctrl[c].ldctl_oid = LDAP_CONTROL_PAGEDRESULTS;
+		ctrl[c].ldctl_iscritical = 0;
+
+		ps_ber = (BerElement *)&ps_berbuf;
+		ber_init2( ps_ber, NULL, LBER_USE_DER );
+
+		/* return size of 0 -- no estimate */
+		ber_printf( ps_ber, "{iO}", 0, &cookie ); 
+
+		if ( ber_flatten2( ps_ber, &ctrl[c].ldctl_value, 0 ) == -1 ) {
+			goto done;
+		}
+		
+		ctrls[c] = &ctrl[c];
+		c++;
+	}
+
+	/* terminate controls array */
+	ctrls[c] = NULL;
+	rs->sr_ctrls = ctrls;
+	rs->sr_err = rc;
+
+respond:;
+	send_ldap_result( op, rs );
+	rs->sr_ctrls = NULL;
+
+done:;
+	if ( ps_ber != NULL ) {
+		(void) ber_free_buf( ps_ber );
+	}
+
+	if( preread_ctrl != NULL && (*preread_ctrl) != NULL ) {
+		slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
+		slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
+	}
+
+	if( postread_ctrl != NULL && (*postread_ctrl) != NULL ) {
+		slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
+		slap_sl_free( *postread_ctrl, op->o_tmpmemctx );
+	}
+
+	return rs->sr_err;
 }
 
 /* add, delete, modify, modrdn, search */
-int
+static int
 null_back_success( Operation *op, SlapReply *rs )
 {
-	rs->sr_err = LDAP_SUCCESS;
-	send_ldap_result( op, rs );
-	return 0;
+	return null_back_respond( op, rs, LDAP_SUCCESS );
 }
 
 /* compare */
-int
+static int
 null_back_false( Operation *op, SlapReply *rs )
 {
-	rs->sr_err = LDAP_COMPARE_FALSE;
-	send_ldap_result( op, rs );
+	return null_back_respond( op, rs, LDAP_COMPARE_FALSE );
+}
+
+
+/* for overlays */
+static int
+null_back_entry_get(
+	Operation *op,
+	struct berval *ndn,
+	ObjectClass *oc,
+	AttributeDescription *at,
+	int rw,
+	Entry **ent )
+{
+	assert( *ent == NULL );
+
+	/* don't admit the object isn't there */
+	return oc || at ? LDAP_NO_SUCH_ATTRIBUTE : LDAP_BUSY;
+}
+
+
+/* Slap tools */
+
+static int
+null_tool_entry_open( BackendDB *be, int mode )
+{
 	return 0;
 }
 
-int
+static int
+null_tool_entry_close( BackendDB *be )
+{
+	assert( be != NULL );
+	return 0;
+}
+
+static ID
+null_tool_entry_next( BackendDB *be )
+{
+	return NOID;
+}
+
+static Entry *
+null_tool_entry_get( BackendDB *be, ID id )
+{
+	assert( slapMode & SLAP_TOOL_MODE );
+	return NULL;
+}
+
+static ID
+null_tool_entry_put( BackendDB *be, Entry *e, struct berval *text )
+{
+	assert( slapMode & SLAP_TOOL_MODE );
+	assert( text != NULL );
+	assert( text->bv_val != NULL );
+	assert( text->bv_val[0] == '\0' );	/* overconservative? */
+
+	e->e_id = ((struct null_info *) be->be_private)->ni_nextid++;
+	return e->e_id;
+}
+
+
+/* Setup */
+
+static int
 null_back_db_config(
 	BackendDB	*be,
 	const char	*fname,
-	int			lineno,
-	int			argc,
+	int		lineno,
+	int		argc,
 	char		**argv )
 {
 	struct null_info *ni = (struct null_info *) be->be_private;
@@ -88,34 +308,28 @@ null_back_db_config(
 			         fname, lineno );
 			return 1;
 		}
-		ni->bind_allowed = strcasecmp( argv[1], "off" );
+		ni->ni_bind_allowed = strcasecmp( argv[1], "off" );
 
 	/* anything else */
 	} else {
-		fprintf( stderr,
-"%s: line %d: unknown directive \"%s\" in null database definition (ignored)\n",
-		         fname, lineno, argv[0] );
+		return SLAP_CONF_UNKNOWN;
 	}
 
 	return 0;
 }
 
-
-int
-null_back_db_init( BackendDB *be )
+static int
+null_back_db_init( BackendDB *be, ConfigReply *cr )
 {
-	struct null_info *ni;
-
-	ni = ch_calloc( 1, sizeof(struct null_info) );
-	ni->bind_allowed = 0;
+	struct null_info *ni = ch_calloc( 1, sizeof(struct null_info) );
+	ni->ni_bind_allowed = 0;
+	ni->ni_nextid = 1;
 	be->be_private = ni;
 	return 0;
 }
 
-int
-null_back_db_destroy(
-    Backend	*be
-)
+static int
+null_back_db_destroy( Backend *be, ConfigReply *cr )
 {
 	free( be->be_private );
 	return 0;
@@ -123,10 +337,31 @@ null_back_db_destroy(
 
 
 int
-null_back_initialize(
-    BackendInfo	*bi
-)
+null_back_initialize( BackendInfo *bi )
 {
+	static char *controls[] = {
+		LDAP_CONTROL_ASSERT,
+		LDAP_CONTROL_MANAGEDSAIT,
+		LDAP_CONTROL_NOOP,
+		LDAP_CONTROL_PAGEDRESULTS,
+		LDAP_CONTROL_SUBENTRIES,
+		LDAP_CONTROL_PRE_READ,
+		LDAP_CONTROL_POST_READ,
+		LDAP_CONTROL_X_PERMISSIVE_MODIFY,
+		NULL
+	};
+
+	Debug( LDAP_DEBUG_TRACE,
+		"null_back_initialize: initialize null backend\n", 0, 0, 0 );
+
+	bi->bi_flags |=
+		SLAP_BFLAG_INCREMENT |
+		SLAP_BFLAG_SUBENTRIES |
+		SLAP_BFLAG_ALIASES |
+		SLAP_BFLAG_REFERRALS;
+
+	bi->bi_controls = controls;
+
 	bi->bi_open = 0;
 	bi->bi_close = 0;
 	bi->bi_config = 0;
@@ -155,21 +390,21 @@ null_back_initialize(
 	bi->bi_connection_init = 0;
 	bi->bi_connection_destroy = 0;
 
+	bi->bi_entry_get_rw = null_back_entry_get;
+
+	bi->bi_tool_entry_open = null_tool_entry_open;
+	bi->bi_tool_entry_close = null_tool_entry_close;
+	bi->bi_tool_entry_first = null_tool_entry_next;
+	bi->bi_tool_entry_next = null_tool_entry_next;
+	bi->bi_tool_entry_get = null_tool_entry_get;
+	bi->bi_tool_entry_put = null_tool_entry_put;
+
 	return 0;
 }
 
-#ifdef SLAPD_NULL_DYNAMIC
-int back_null_LTX_init_module(
-	int argc,
-	char *argv[] )
-{
-    BackendInfo bi;
+#if SLAPD_NULL == SLAPD_MOD_DYNAMIC
 
-    memset( &bi, '\0', sizeof(bi) );
-    bi.bi_type = "null";
-    bi.bi_init = null_back_initialize;
+/* conditionally define the init_module() function */
+SLAP_BACKEND_INIT_MODULE( null )
 
-    backend_add(&bi);
-    return 0;
-}
-#endif /* SLAPD_NULL_DYNAMIC */
+#endif /* SLAPD_NULL == SLAPD_MOD_DYNAMIC */