1 files changed, 330 insertions, 0 deletions
diff --git a/servers/slapd/init.c b/servers/slapd/init.c
new file mode 100644
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--- /dev/null
+++ b/servers/slapd/init.c
@@ -0,0 +1,330 @@
+/* init.c - initialize various things */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2022 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+/* Portions Copyright (c) 1995 Regents of the University of Michigan.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that this notice is preserved and that due credit is given
+ * to the University of Michigan at Ann Arbor. The name of the University
+ * may not be used to endorse or promote products derived from this
+ * software without specific prior written permission. This software
+ * is provided ``as is'' without express or implied warranty.
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+
+#include <ac/socket.h>
+#include <ac/string.h>
+#include <ac/time.h>
+
+#include "slap.h"
+#include "lber_pvt.h"
+
+#include "ldap_rq.h"
+
+/*
+ * read-only global variables or variables only written by the listener
+ * thread (after they are initialized) - no need to protect them with a mutex.
+ */
+int		slap_debug = 0;
+
+#ifdef LDAP_DEBUG
+int		ldap_syslog = LDAP_DEBUG_STATS;
+#else
+int		ldap_syslog;
+#endif
+
+#ifdef LOG_DEBUG
+int		ldap_syslog_level = LOG_DEBUG;
+#endif
+
+BerVarray default_referral = NULL;
+
+/*
+ * global variables that need mutex protection
+ */
+ldap_pvt_thread_pool_t	connection_pool;
+int		connection_pool_max = SLAP_MAX_WORKER_THREADS;
+int		connection_pool_queues = 1;
+int		slap_tool_thread_max = 1;
+
+slap_counters_t			slap_counters, *slap_counters_list;
+
+static const char* slap_name = NULL;
+int slapMode = SLAP_UNDEFINED_MODE;
+
+int
+slap_init( int mode, const char *name )
+{
+	int rc;
+
+	assert( mode );
+
+	if ( slapMode != SLAP_UNDEFINED_MODE ) {
+		/* Make sure we write something to stderr */
+		slap_debug |= LDAP_DEBUG_NONE;
+		Debug( LDAP_DEBUG_ANY,
+		 "%s init: init called twice (old=%d, new=%d)\n",
+		 name, slapMode, mode );
+
+		return 1;
+	}
+
+	slapMode = mode;
+
+	slap_op_init();
+
+	ldap_pvt_thread_mutex_init( &slapd_init_mutex );
+	ldap_pvt_thread_cond_init( &slapd_init_cond );
+
+#ifdef SLAPD_MODULES
+	if ( module_init() != 0 ) {
+		slap_debug |= LDAP_DEBUG_NONE;
+		Debug( LDAP_DEBUG_ANY,
+		    "%s: module_init failed\n",
+			name );
+		return 1;
+	}
+#endif
+
+	if ( slap_schema_init( ) != 0 ) {
+		slap_debug |= LDAP_DEBUG_NONE;
+		Debug( LDAP_DEBUG_ANY,
+		    "%s: slap_schema_init failed\n",
+		    name );
+		return 1;
+	}
+
+	if ( filter_init() != 0 ) {
+		slap_debug |= LDAP_DEBUG_NONE;
+		Debug( LDAP_DEBUG_ANY,
+		    "%s: filter_init failed\n",
+		    name );
+		return 1;
+	}
+
+	if ( entry_init() != 0 ) {
+		slap_debug |= LDAP_DEBUG_NONE;
+		Debug( LDAP_DEBUG_ANY,
+		    "%s: entry_init failed\n",
+		    name );
+		return 1;
+	}
+
+	switch ( slapMode & SLAP_MODE ) {
+	case SLAP_SERVER_MODE:
+		root_dse_init();
+
+		/* FALLTHRU */
+	case SLAP_TOOL_MODE:
+		Debug( LDAP_DEBUG_TRACE,
+			"%s init: initiated %s.\n",	name,
+			(mode & SLAP_MODE) == SLAP_TOOL_MODE ? "tool" : "server" );
+
+		slap_name = name;
+
+		ldap_pvt_thread_pool_init_q( &connection_pool,
+				connection_pool_max, 0, connection_pool_queues);
+
+		slap_counters_init( &slap_counters );
+
+		ldap_pvt_thread_mutex_init( &slapd_rq.rq_mutex );
+		LDAP_STAILQ_INIT( &slapd_rq.task_list );
+		LDAP_STAILQ_INIT( &slapd_rq.run_list );
+
+		slap_passwd_init();
+
+		rc = slap_sasl_init();
+
+		if( rc == 0 ) {
+			rc = backend_init( );
+		}
+		if ( rc )
+			return rc;
+
+		break;
+
+	default:
+		slap_debug |= LDAP_DEBUG_NONE;
+		Debug( LDAP_DEBUG_ANY,
+			"%s init: undefined mode (%d).\n", name, mode );
+
+		rc = 1;
+		break;
+	}
+
+	if ( slap_controls_init( ) != 0 ) {
+		slap_debug |= LDAP_DEBUG_NONE;
+		Debug( LDAP_DEBUG_ANY,
+		    "%s: slap_controls_init failed\n",
+		    name );
+		return 1;
+	}
+
+	if ( frontend_init() ) {
+		slap_debug |= LDAP_DEBUG_NONE;
+		Debug( LDAP_DEBUG_ANY,
+		    "%s: frontend_init failed\n",
+		    name );
+		return 1;
+	}
+
+	if ( overlay_init() ) {
+		slap_debug |= LDAP_DEBUG_NONE;
+		Debug( LDAP_DEBUG_ANY,
+		    "%s: overlay_init failed\n",
+		    name );
+		return 1;
+	}
+
+	if ( glue_sub_init() ) {
+		slap_debug |= LDAP_DEBUG_NONE;
+		Debug( LDAP_DEBUG_ANY,
+		    "%s: glue/subordinate init failed\n",
+		    name );
+
+		return 1;
+	}
+
+	if ( acl_init() ) {
+		slap_debug |= LDAP_DEBUG_NONE;
+		Debug( LDAP_DEBUG_ANY,
+		    "%s: acl_init failed\n",
+		    name );
+		return 1;
+	}
+
+	return rc;
+}
+
+int slap_startup( Backend *be )
+{
+	int rc;
+	Debug( LDAP_DEBUG_TRACE,
+		"%s startup: initiated.\n",
+		slap_name );
+
+	rc = backend_startup( be );
+	if ( !rc && ( slapMode & SLAP_SERVER_MODE ))
+		slapMode |= SLAP_SERVER_RUNNING;
+	return rc;
+}
+
+int slap_shutdown( Backend *be )
+{
+	Debug( LDAP_DEBUG_TRACE,
+		"%s shutdown: initiated\n",
+		slap_name );
+
+	/* Make sure the pool stops now even if we did not start up fully */
+	ldap_pvt_thread_pool_close( &connection_pool, 1 );
+
+	/* let backends do whatever cleanup they need to do */
+	return backend_shutdown( be ); 
+}
+
+int slap_destroy(void)
+{
+	int rc;
+
+	Debug( LDAP_DEBUG_TRACE,
+		"%s destroy: freeing system resources.\n",
+		slap_name );
+
+	if ( default_referral ) {
+		ber_bvarray_free( default_referral );
+	}
+
+	ldap_pvt_thread_pool_free( &connection_pool );
+
+	/* clear out any thread-keys for the main thread */
+	ldap_pvt_thread_pool_context_reset( ldap_pvt_thread_pool_context());
+
+	rc = backend_destroy();
+
+	slap_sasl_destroy();
+
+	/* rootdse destroy goes before entry_destroy()
+	 * because it may use entry_free() */
+	root_dse_destroy();
+	entry_destroy();
+
+	switch ( slapMode & SLAP_MODE ) {
+	case SLAP_SERVER_MODE:
+	case SLAP_TOOL_MODE:
+		slap_counters_destroy( &slap_counters );
+		break;
+
+	default:
+		Debug( LDAP_DEBUG_ANY,
+			"slap_destroy(): undefined mode (%d).\n", slapMode );
+
+		rc = 1;
+		break;
+
+	}
+
+	ldap_pvt_thread_mutex_destroy( &slapd_init_mutex );
+	ldap_pvt_thread_cond_destroy( &slapd_init_cond );
+
+	slap_op_destroy();
+
+	ldap_pvt_thread_destroy();
+
+	/* should destroy the above mutex */
+	return rc;
+}
+
+void slap_counters_init( slap_counters_t *sc )
+{
+	int i;
+
+	ldap_pvt_thread_mutex_init( &sc->sc_mutex );
+	ldap_pvt_mp_init( sc->sc_bytes );
+	ldap_pvt_mp_init( sc->sc_pdu );
+	ldap_pvt_mp_init( sc->sc_entries );
+	ldap_pvt_mp_init( sc->sc_refs );
+
+	ldap_pvt_mp_init( sc->sc_ops_initiated );
+	ldap_pvt_mp_init( sc->sc_ops_completed );
+
+	for ( i = 0; i < SLAP_OP_LAST; i++ ) {
+		ldap_pvt_mp_init( sc->sc_ops_initiated_[ i ] );
+		ldap_pvt_mp_init( sc->sc_ops_completed_[ i ] );
+	}
+}
+
+void slap_counters_destroy( slap_counters_t *sc )
+{
+	int i;
+
+	ldap_pvt_thread_mutex_destroy( &sc->sc_mutex );
+	ldap_pvt_mp_clear( sc->sc_bytes );
+	ldap_pvt_mp_clear( sc->sc_pdu );
+	ldap_pvt_mp_clear( sc->sc_entries );
+	ldap_pvt_mp_clear( sc->sc_refs );
+
+	ldap_pvt_mp_clear( sc->sc_ops_initiated );
+	ldap_pvt_mp_clear( sc->sc_ops_completed );
+
+	for ( i = 0; i < SLAP_OP_LAST; i++ ) {
+		ldap_pvt_mp_clear( sc->sc_ops_initiated_[ i ] );
+		ldap_pvt_mp_clear( sc->sc_ops_completed_[ i ] );
+	}
+}
+