X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=servers%2Fslapd%2Fbackover.c;h=054edbe11ab1fbf3cdef36d4f3c903fd83e011e2;hb=c0e3958cefa412a5c2348c645957719c4c4622e9;hp=e1b31a50c1d6f6817afd4502e376361d11c2d112;hpb=65587fea65b84322c87182ecf4662d0ba59e3040;p=openldap

diff --git a/servers/slapd/backover.c b/servers/slapd/backover.c
index e1b31a50c1..054edbe11a 100644
--- a/servers/slapd/backover.c
+++ b/servers/slapd/backover.c
@@ -25,10 +25,16 @@
 
 #define SLAPD_TOOLS
 #include "slap.h"
+#include "config.h"
 
 static slap_overinst *overlays;
 
-enum db_which { db_open = 0, db_close, db_destroy };
+enum db_which {
+	db_open = 0,
+	db_close,
+	db_destroy,
+	db_last
+};
 
 static int
 over_db_func(
@@ -71,10 +77,13 @@ over_db_config(
 	slap_overinfo *oi = be->bd_info->bi_private;
 	slap_overinst *on = oi->oi_list;
 	BackendInfo *bi_orig = be->bd_info;
+	struct ConfigOCs *be_cf_ocs = be->be_cf_ocs;
+	ConfigArgs ca = {0};
 	int rc = 0;
 
 	if ( oi->oi_orig->bi_db_config ) {
 		be->bd_info = oi->oi_orig;
+		be->be_cf_ocs = oi->oi_orig->bi_cf_ocs;
 		rc = oi->oi_orig->bi_db_config( be, fname, lineno,
 			argc, argv );
 
@@ -123,8 +132,24 @@ over_db_config(
 		if ( rc != SLAP_CONF_UNKNOWN ) return rc;
 	}
 
+	ca.argv = argv;
+	ca.argc = argc;
+	ca.fname = fname;
+	ca.lineno = lineno;
+	ca.be = be;
 	for (; on; on=on->on_next) {
-		if (on->on_bi.bi_db_config) {
+		rc = SLAP_CONF_UNKNOWN;
+		if (on->on_bi.bi_cf_ocs) {
+			ConfigTable *ct;
+			ca.bi = &on->on_bi;
+			ct = config_find_keyword( on->on_bi.bi_cf_ocs->co_table, &ca );
+			if ( ct ) {
+				rc = config_add_vals( ct, &ca );
+				if ( rc != SLAP_CONF_UNKNOWN )
+					break;
+			}
+		}
+		if (on->on_bi.bi_db_config && rc == SLAP_CONF_UNKNOWN) {
 			be->bd_info = &on->on_bi;
 			rc = on->on_bi.bi_db_config( be, fname, lineno,
 				argc, argv );
@@ -132,6 +157,8 @@ over_db_config(
 		}
 	}
 	be->bd_info = bi_orig;
+	be->be_cf_ocs = be_cf_ocs;
+	
 	return rc;
 }
 
@@ -209,29 +236,218 @@ over_back_response ( Operation *op, SlapReply *rs )
 	return rc;
 }
 
-enum op_which {
-	op_bind = 0,
-	op_unbind,
-	op_search,
-	op_compare,
-	op_modify,
-	op_modrdn,
-	op_add,
-	op_delete,
-	op_abandon,
-	op_cancel,
-	op_extended,
-	op_aux_operational,
-	op_aux_chk_referrals,
-	op_aux_chk_controls,
-	op_last
-};
+#ifdef SLAP_OVERLAY_ACCESS
+static int
+over_access_allowed(
+	Operation		*op,
+	Entry			*e,
+	AttributeDescription	*desc,
+	struct berval		*val,
+	slap_access_t		access,
+	AccessControlState	*state,
+	slap_mask_t		*maskp )
+{
+	slap_overinfo *oi;
+	slap_overinst *on;
+	BackendInfo *bi = op->o_bd->bd_info;
+	BackendDB *be = op->o_bd, db;
+	int rc = SLAP_CB_CONTINUE;
+
+	/* FIXME: used to happen for instance during abandon
+	 * when global overlays are used... */
+	assert( op->o_bd != NULL );
+
+	oi = op->o_bd->bd_info->bi_private;
+	on = oi->oi_list;
+
+	for ( ; on; on = on->on_next ) {
+		if ( on->on_bi.bi_access_allowed ) {
+			/* NOTE: do not copy the structure until required */
+		 	if ( !SLAP_ISOVERLAY( op->o_bd ) ) {
+ 				db = *op->o_bd;
+				db.be_flags |= SLAP_DBFLAG_OVERLAY;
+				op->o_bd = &db;
+			}
+
+			op->o_bd->bd_info = (BackendInfo *)on;
+			rc = on->on_bi.bi_access_allowed( op, e,
+				desc, val, access, state, maskp );
+			if ( rc != SLAP_CB_CONTINUE ) break;
+		}
+	}
+
+	if ( rc == SLAP_CB_CONTINUE ) {
+		BI_access_allowed	*bi_access_allowed;
+
+		/* if the database structure was changed, o_bd points to a
+		 * copy of the structure; put the original bd_info in place */
+		if ( SLAP_ISOVERLAY( op->o_bd ) ) {
+			op->o_bd->bd_info = oi->oi_orig;
+		}
+
+		if ( oi->oi_orig->bi_access_allowed ) {
+			bi_access_allowed = oi->oi_orig->bi_access_allowed;
+		} else {
+			bi_access_allowed = slap_access_allowed;
+		}
+
+		rc = bi_access_allowed( op, e,
+			desc, val, access, state, maskp );
+	}
+	/* should not fall thru this far without anything happening... */
+	if ( rc == SLAP_CB_CONTINUE ) {
+		/* access not allowed */
+		rc = 0;
+	}
+
+	op->o_bd = be;
+	op->o_bd->bd_info = bi;
+
+	return rc;
+}
+
+static int
+over_acl_group(
+	Operation		*op,
+	Entry			*e,
+	struct berval		*gr_ndn,
+	struct berval		*op_ndn,
+	ObjectClass		*group_oc,
+	AttributeDescription	*group_at )
+{
+	slap_overinfo *oi;
+	slap_overinst *on;
+	BackendInfo *bi = op->o_bd->bd_info;
+	BackendDB *be = op->o_bd, db;
+	int rc = SLAP_CB_CONTINUE;
+
+	/* FIXME: used to happen for instance during abandon
+	 * when global overlays are used... */
+	assert( op->o_bd != NULL );
+
+	oi = op->o_bd->bd_info->bi_private;
+	on = oi->oi_list;
+
+	for ( ; on; on = on->on_next ) {
+		if ( on->on_bi.bi_acl_group ) {
+			/* NOTE: do not copy the structure until required */
+		 	if ( !SLAP_ISOVERLAY( op->o_bd ) ) {
+ 				db = *op->o_bd;
+				db.be_flags |= SLAP_DBFLAG_OVERLAY;
+				op->o_bd = &db;
+			}
+
+			op->o_bd->bd_info = (BackendInfo *)on;
+			rc = on->on_bi.bi_acl_group( op, e,
+				gr_ndn, op_ndn, group_oc, group_at );
+			if ( rc != SLAP_CB_CONTINUE ) break;
+		}
+	}
+
+	if ( rc == SLAP_CB_CONTINUE ) {
+		BI_acl_group		*bi_acl_group;
+
+		/* if the database structure was changed, o_bd points to a
+		 * copy of the structure; put the original bd_info in place */
+		if ( SLAP_ISOVERLAY( op->o_bd ) ) {
+			op->o_bd->bd_info = oi->oi_orig;
+		}
+
+		if ( oi->oi_orig->bi_acl_group ) {
+			bi_acl_group = oi->oi_orig->bi_acl_group;
+		} else {
+			bi_acl_group = backend_group;
+		}
+
+		rc = bi_acl_group( op, e,
+			gr_ndn, op_ndn, group_oc, group_at );
+	}
+	/* should not fall thru this far without anything happening... */
+	if ( rc == SLAP_CB_CONTINUE ) {
+		/* access not allowed */
+		rc = 0;
+	}
+
+	op->o_bd = be;
+	op->o_bd->bd_info = bi;
+
+	return rc;
+}
+
+static int
+over_acl_attribute(
+	Operation		*op,
+	Entry			*target,
+	struct berval		*entry_ndn,
+	AttributeDescription	*entry_at,
+	BerVarray		*vals,
+	slap_access_t		access )
+{
+	slap_overinfo *oi;
+	slap_overinst *on;
+	BackendInfo *bi = op->o_bd->bd_info;
+	BackendDB *be = op->o_bd, db;
+	int rc = SLAP_CB_CONTINUE;
+
+	/* FIXME: used to happen for instance during abandon
+	 * when global overlays are used... */
+	assert( op->o_bd != NULL );
+
+	oi = op->o_bd->bd_info->bi_private;
+	on = oi->oi_list;
+
+	for ( ; on; on = on->on_next ) {
+		if ( on->on_bi.bi_acl_attribute ) {
+			/* NOTE: do not copy the structure until required */
+		 	if ( !SLAP_ISOVERLAY( op->o_bd ) ) {
+ 				db = *op->o_bd;
+				db.be_flags |= SLAP_DBFLAG_OVERLAY;
+				op->o_bd = &db;
+			}
+
+			op->o_bd->bd_info = (BackendInfo *)on;
+			rc = on->on_bi.bi_acl_attribute( op, target,
+				entry_ndn, entry_at, vals, access );
+			if ( rc != SLAP_CB_CONTINUE ) break;
+		}
+	}
+
+	if ( rc == SLAP_CB_CONTINUE ) {
+		BI_acl_attribute		*bi_acl_attribute;
+
+		/* if the database structure was changed, o_bd points to a
+		 * copy of the structure; put the original bd_info in place */
+		if ( SLAP_ISOVERLAY( op->o_bd ) ) {
+			op->o_bd->bd_info = oi->oi_orig;
+		}
+
+		if ( oi->oi_orig->bi_acl_attribute ) {
+			bi_acl_attribute = oi->oi_orig->bi_acl_attribute;
+		} else {
+			bi_acl_attribute = backend_attribute;
+		}
+
+		rc = bi_acl_attribute( op, target,
+			entry_ndn, entry_at, vals, access );
+	}
+	/* should not fall thru this far without anything happening... */
+	if ( rc == SLAP_CB_CONTINUE ) {
+		/* access not allowed */
+		rc = 0;
+	}
+
+	op->o_bd = be;
+	op->o_bd->bd_info = bi;
+
+	return rc;
+}
+#endif /* SLAP_OVERLAY_ACCESS */
 
 /*
  * default return code in case of missing backend function
  * and overlay stack returning SLAP_CB_CONTINUE
  */
-static int op_rc[] = {
+static int op_rc[ op_last ] = {
 	LDAP_UNWILLING_TO_PERFORM,	/* bind */
 	LDAP_UNWILLING_TO_PERFORM,	/* unbind */
 	LDAP_UNWILLING_TO_PERFORM,	/* search */
@@ -248,36 +464,17 @@ static int op_rc[] = {
 	SLAP_CB_CONTINUE		/* aux_chk_controls; pass to frontend */
 };
 
-static int
-over_op_func(
+int overlay_op_walk(
 	Operation *op,
 	SlapReply *rs,
-	enum op_which which
+	slap_operation_t which,
+	slap_overinfo *oi,
+	slap_overinst *on
 )
 {
-	slap_overinfo *oi;
-	slap_overinst *on;
 	BI_op_bind **func;
-	BackendDB *be = op->o_bd, db;
-	slap_callback cb = {NULL, over_back_response, NULL, NULL};
 	int rc = SLAP_CB_CONTINUE;
 
-	/* FIXME: used to happen for instance during abandon
-	 * when global overlays are used... */
-	assert( op->o_bd != NULL );
-
-	oi = op->o_bd->bd_info->bi_private;
-	on = oi->oi_list;
-
- 	if ( !SLAP_ISOVERLAY( op->o_bd )) {
- 		db = *op->o_bd;
-		db.be_flags |= SLAP_DBFLAG_OVERLAY;
-		op->o_bd = &db;
-	}
-	cb.sc_next = op->o_callback;
-	cb.sc_private = oi;
-	op->o_callback = &cb;
-
 	for (; on; on=on->on_next ) {
 		func = &on->on_bi.bi_op_bind;
 		if ( func[which] ) {
@@ -302,14 +499,48 @@ over_op_func(
 	 */
 	if ( rc == LDAP_UNWILLING_TO_PERFORM ) {
 		slap_callback *sc_next;
-		for ( ; op->o_callback && op->o_callback != cb.sc_next; 
-			op->o_callback = sc_next ) {
+		for ( ; op->o_callback && op->o_callback->sc_response !=
+			over_back_response; op->o_callback = sc_next ) {
 			sc_next = op->o_callback->sc_next;
 			if ( op->o_callback->sc_cleanup ) {
 				op->o_callback->sc_cleanup( op, rs );
 			}
 		}
 	}
+	return rc;
+}
+
+static int
+over_op_func(
+	Operation *op,
+	SlapReply *rs,
+	slap_operation_t which
+)
+{
+	slap_overinfo *oi;
+	slap_overinst *on;
+	BackendDB *be = op->o_bd, db;
+	slap_callback cb = {NULL, over_back_response, NULL, NULL};
+	int rc = SLAP_CB_CONTINUE;
+
+	/* FIXME: used to happen for instance during abandon
+	 * when global overlays are used... */
+	assert( op->o_bd != NULL );
+
+	oi = op->o_bd->bd_info->bi_private;
+	on = oi->oi_list;
+
+ 	if ( !SLAP_ISOVERLAY( op->o_bd )) {
+ 		db = *op->o_bd;
+		db.be_flags |= SLAP_DBFLAG_OVERLAY;
+		op->o_bd = &db;
+	}
+	cb.sc_next = op->o_callback;
+	cb.sc_private = oi;
+	op->o_callback = &cb;
+
+	rc = overlay_op_walk( op, rs, which, oi, on );
+
 	op->o_bd = be;
 	op->o_callback = cb.sc_next;
 	return rc;
@@ -399,16 +630,24 @@ over_aux_chk_controls( Operation *op, SlapReply *rs )
 	return over_op_func( op, rs, op_aux_chk_controls );
 }
 
+enum conn_which {
+	conn_init = 0,
+	conn_destroy,
+	conn_last
+};
+
 static int
-over_connection_destroy(
+over_connection_func(
 	BackendDB	*bd,
-	Connection	*conn
+	Connection	*conn,
+	enum conn_which	which
 )
 {
-	slap_overinfo *oi;
-	slap_overinst *on;
-	BackendDB db;
-	int rc = SLAP_CB_CONTINUE;
+	slap_overinfo		*oi;
+	slap_overinst		*on;
+	BackendDB		db;
+	int			rc = SLAP_CB_CONTINUE;
+	BI_connection_init	**func;
 
 	/* FIXME: used to happen for instance during abandon
 	 * when global overlays are used... */
@@ -417,23 +656,25 @@ over_connection_destroy(
 	oi = bd->bd_info->bi_private;
 	on = oi->oi_list;
 
- 	if ( !SLAP_ISOVERLAY( bd )) {
+ 	if ( !SLAP_ISOVERLAY( bd ) ) {
  		db = *bd;
 		db.be_flags |= SLAP_DBFLAG_OVERLAY;
 		bd = &db;
 	}
 
-	for (; on; on=on->on_next ) {
-		if ( on->on_bi.bi_connection_destroy ) {
+	for ( ; on; on = on->on_next ) {
+		func = &on->on_bi.bi_connection_init;
+		if ( func[ which ] ) {
 			bd->bd_info = (BackendInfo *)on;
-			rc = on->on_bi.bi_connection_destroy( bd, conn );
+			rc = func[ which ]( bd, conn );
 			if ( rc != SLAP_CB_CONTINUE ) break;
 		}
 	}
 
-	if ( oi->oi_orig->bi_connection_destroy && rc == SLAP_CB_CONTINUE ) {
+	func = &oi->oi_orig->bi_connection_init;
+	if ( func[ which ] && rc == SLAP_CB_CONTINUE ) {
 		bd->bd_info = oi->oi_orig;
-		rc = oi->oi_orig->bi_connection_destroy( bd, conn );
+		rc = func[ which ]( bd, conn );
 	}
 	/* should not fall thru this far without anything happening... */
 	if ( rc == SLAP_CB_CONTINUE ) {
@@ -443,6 +684,24 @@ over_connection_destroy(
 	return rc;
 }
 
+static int
+over_connection_init(
+	BackendDB	*bd,
+	Connection	*conn
+)
+{
+	return over_connection_func( bd, conn, conn_init );
+}
+
+static int
+over_connection_destroy(
+	BackendDB	*bd,
+	Connection	*conn
+)
+{
+	return over_connection_func( bd, conn, conn_destroy );
+}
+
 int
 overlay_register(
 	slap_overinst *on
@@ -482,7 +741,7 @@ overlay_find( const char *over_type )
 {
 	slap_overinst *on = overlays;
 
-	assert( over_type );
+	assert( over_type != NULL );
 
 	for ( ; on; on = on->on_next ) {
 		if ( strcmp( on->on_bi.bi_type, over_type ) == 0 ) {
@@ -517,7 +776,7 @@ overlay_is_inst( BackendDB *be, const char *over_type )
 {
 	slap_overinst	*on;
 
-	assert( be );
+	assert( be != NULL );
 
 	if ( !overlay_is_over( be ) ) {
 		return 0;
@@ -545,12 +804,10 @@ overlay_register_control( BackendDB *be, const char *oid )
 	}
 
 	if ( SLAP_DBFLAGS( be ) & SLAP_DBFLAG_GLOBAL_OVERLAY ) {
-		int	i;
+		BackendDB *bd;
 		
 		/* add to all backends... */
-		for ( i = 0; i < nBackendDB; i++ ) {
-			BackendDB	*bd = &backendDB[i];
-			
+		LDAP_STAILQ_FOREACH( bd, &backendDB, be_next ) {
 			if ( be == bd ) {
 				gotit = 1;
 			}
@@ -569,6 +826,27 @@ overlay_register_control( BackendDB *be, const char *oid )
 	return rc;
 }
 
+void
+overlay_destroy_one( BackendDB *be, slap_overinst *on )
+{
+	slap_overinfo *oi = on->on_info;
+	slap_overinst **oidx;
+
+	for ( oidx = &oi->oi_list; *oidx; oidx = &(*oidx)->on_next ) {
+		if ( *oidx == on ) {
+			*oidx = on->on_next;
+			if ( on->on_bi.bi_db_destroy ) {
+				BackendInfo *bi_orig = be->bd_info;
+				be->bd_info = (BackendInfo *)on;
+				on->on_bi.bi_db_destroy( be );
+				be->bd_info = bi_orig;
+			}
+			free( on );
+			break;
+		}
+	}
+}
+
 /* add an overlay to a particular backend. */
 int
 overlay_config( BackendDB *be, const char *ov )
@@ -590,6 +868,7 @@ overlay_config( BackendDB *be, const char *ov )
 		oi = ch_malloc( sizeof( slap_overinfo ) );
 		oi->oi_orig = be->bd_info;
 		oi->oi_bi = *be->bd_info;
+		oi->oi_origdb = be;
 
 		/* NOTE: the first time a global overlay is configured,
 		 * frontendDB gets this flag; it is used later by overlays
@@ -633,7 +912,15 @@ overlay_config( BackendDB *be, const char *ov )
 		bi->bi_operational = over_aux_operational;
 		bi->bi_chk_referrals = over_aux_chk_referrals;
 		bi->bi_chk_controls = over_aux_chk_controls;
+
+#ifdef SLAP_OVERLAY_ACCESS
+		/* these have specific arglists */
+		bi->bi_access_allowed = over_access_allowed;
+		bi->bi_acl_group = over_acl_group;
+		bi->bi_acl_attribute = over_acl_attribute;
+#endif /* SLAP_OVERLAY_ACCESS */
 		
+		bi->bi_connection_init = over_connection_init;
 		bi->bi_connection_destroy = over_connection_destroy;
 
 		be->bd_info = bi;