1/* $NetBSD: proto-lload.h,v 1.2 2021/08/14 16:14:58 christos Exp $ */ 2 3/* $OpenLDAP$ */ 4/* This work is part of OpenLDAP Software <http://www.openldap.org/>. 5 * 6 * Copyright 1998-2021 The OpenLDAP Foundation. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted only as authorized by the OpenLDAP 11 * Public License. 12 * 13 * A copy of this license is available in the file LICENSE in the 14 * top-level directory of the distribution or, alternatively, at 15 * <http://www.OpenLDAP.org/license.html>. 16 */ 17/* Portions Copyright (c) 1995 Regents of the University of Michigan. 18 * All rights reserved. 19 * 20 * Redistribution and use in source and binary forms are permitted 21 * provided that this notice is preserved and that due credit is given 22 * to the University of Michigan at Ann Arbor. The name of the University 23 * may not be used to endorse or promote products derived from this 24 * software without specific prior written permission. This software 25 * is provided ``as is'' without express or implied warranty. 26 */ 27 28#ifndef PROTO_LLOAD_H 29#define PROTO_LLOAD_H 30 31#include <ldap_cdefs.h> 32#include "ldap_pvt.h" 33 34#include <event2/event.h> 35 36LDAP_BEGIN_DECL 37 38/* 39 * backend.c 40 */ 41 42LDAP_SLAPD_F (void) backend_connect( evutil_socket_t s, short what, void *arg ); 43LDAP_SLAPD_F (void *) backend_connect_task( void *ctx, void *arg ); 44LDAP_SLAPD_F (void) backend_retry( LloadBackend *b ); 45LDAP_SLAPD_F (LloadConnection *) backend_select( LloadOperation *op, int *res ); 46LDAP_SLAPD_F (void) backend_reset( LloadBackend *b, int gentle ); 47LDAP_SLAPD_F (void) lload_backend_destroy( LloadBackend *b ); 48LDAP_SLAPD_F (void) lload_backends_destroy( void ); 49 50/* 51 * bind.c 52 */ 53LDAP_SLAPD_F (int) request_bind( LloadConnection *c, LloadOperation *op ); 54LDAP_SLAPD_F (int) handle_bind_response( LloadConnection *client, LloadOperation *op, BerElement *ber ); 55LDAP_SLAPD_F (int) handle_whoami_response( LloadConnection *client, LloadOperation *op, BerElement *ber ); 56LDAP_SLAPD_F (int) handle_vc_bind_response( LloadConnection *client, LloadOperation *op, BerElement *ber ); 57 58/* 59 * client.c 60 */ 61LDAP_SLAPD_F (int) request_abandon( LloadConnection *c, LloadOperation *op ); 62LDAP_SLAPD_F (int) request_process( LloadConnection *c, LloadOperation *op ); 63LDAP_SLAPD_F (int) handle_one_request( LloadConnection *c ); 64LDAP_SLAPD_F (void) client_tls_handshake_cb( evutil_socket_t s, short what, void *arg ); 65LDAP_SLAPD_F (LloadConnection *) client_init( ber_socket_t s, const char *peername, struct event_base *base, int use_tls ); 66LDAP_SLAPD_F (void) client_reset( LloadConnection *c ); 67LDAP_SLAPD_F (void) client_destroy( LloadConnection *c ); 68LDAP_SLAPD_F (void) clients_destroy( int gentle ); 69LDAP_SLAPD_V (long) lload_client_max_pending; 70 71/* 72 * config.c 73 */ 74LDAP_SLAPD_F (int) lload_read_config( const char *fname, const char *dir ); 75LDAP_SLAPD_F (void) lload_config_destroy( void ); 76LDAP_SLAPD_F (int) verb_to_mask( const char *word, slap_verbmasks *v ); 77LDAP_SLAPD_F (int) lload_tls_get_config( LDAP *ld, int opt, char **val ); 78LDAP_SLAPD_F (void) lload_bindconf_tls_defaults( slap_bindconf *bc ); 79LDAP_SLAPD_F (int) lload_backend_parse( const char *word, LloadBackend *b ); 80LDAP_SLAPD_F (int) lload_bindconf_parse( const char *word, slap_bindconf *bc ); 81LDAP_SLAPD_F (int) lload_bindconf_unparse( slap_bindconf *bc, struct berval *bv ); 82LDAP_SLAPD_F (int) lload_bindconf_tls_set( slap_bindconf *bc, LDAP *ld ); 83LDAP_SLAPD_F (void) lload_bindconf_free( slap_bindconf *bc ); 84#ifdef BALANCER_MODULE 85LDAP_SLAPD_F (int) lload_back_init_cf( BackendInfo *bi ); 86#endif 87 88/* 89 * connection.c 90 */ 91LDAP_SLAPD_V (ldap_pvt_thread_mutex_t) clients_mutex; 92LDAP_SLAPD_F (void *) handle_pdus( void *ctx, void *arg ); 93LDAP_SLAPD_F (void) connection_write_cb( evutil_socket_t s, short what, void *arg ); 94LDAP_SLAPD_F (void) connection_read_cb( evutil_socket_t s, short what, void *arg ); 95LDAP_SLAPD_F (int) lload_connection_close( LloadConnection *c, void *arg ); 96LDAP_SLAPD_F (LloadConnection *) lload_connection_init( ber_socket_t s, const char *peername, int use_tls ); 97LDAP_SLAPD_F (void) connection_destroy( LloadConnection *c ); 98LDAP_SLAPD_F (void) connections_walk_last( ldap_pvt_thread_mutex_t *cq_mutex, 99 lload_c_head *cq, 100 LloadConnection *cq_last, 101 CONNCB cb, 102 void *arg ); 103LDAP_SLAPD_F (void) connections_walk( ldap_pvt_thread_mutex_t *cq_mutex, lload_c_head *cq, CONNCB cb, void *arg ); 104 105/* 106 * daemon.c 107 */ 108LDAP_SLAPD_F (int) lload_open_new_listener( const char *urls, LDAPURLDesc *lud ); 109LDAP_SLAPD_F (int) lloadd_listeners_init( const char *urls ); 110LDAP_SLAPD_F (int) lloadd_daemon_destroy( void ); 111LDAP_SLAPD_F (int) lloadd_daemon( struct event_base *daemon_base ); 112LDAP_SLAPD_F (LloadListener **) lloadd_get_listeners( void ); 113LDAP_SLAPD_F (void) listeners_reactivate( void ); 114LDAP_SLAPD_F (struct event_base *) lload_get_base( ber_socket_t s ); 115LDAP_SLAPD_V (int) lload_daemon_threads; 116LDAP_SLAPD_V (int) lload_daemon_mask; 117 118LDAP_SLAPD_F (void) lload_sig_shutdown( evutil_socket_t sig, short what, void *arg ); 119 120LDAP_SLAPD_F (void) lload_pause_server( void ); 121LDAP_SLAPD_F (void) lload_unpause_server( void ); 122 123LDAP_SLAPD_V (struct event_base *) daemon_base; 124LDAP_SLAPD_V (struct evdns_base *) dnsbase; 125LDAP_SLAPD_V (volatile sig_atomic_t) slapd_shutdown; 126LDAP_SLAPD_V (volatile sig_atomic_t) slapd_gentle_shutdown; 127LDAP_SLAPD_V (int) lloadd_inited; 128LDAP_SLAPD_V (struct LloadChange) lload_change; 129 130LDAP_SLAPD_V (struct event *) lload_timeout_event; 131 132LDAP_SLAPD_V (LDAP *) lload_tls_backend_ld; 133LDAP_SLAPD_V (LDAP *) lload_tls_ld; 134LDAP_SLAPD_V (void *) lload_tls_ctx; 135#ifdef BALANCER_MODULE 136LDAP_SLAPD_V (int) lload_use_slap_tls_ctx; 137#endif /* BALANCER_MODULE */ 138 139/* 140 * extended.c 141 */ 142LDAP_SLAPD_V (Avlnode *) lload_exop_handlers; 143LDAP_SLAPD_F (int) exop_handler_cmp( const void *l, const void *r ); 144LDAP_SLAPD_F (int) request_extended( LloadConnection *c, LloadOperation *op ); 145LDAP_SLAPD_F (int) lload_exop_init( void ); 146 147/* 148 * init.c 149 */ 150LDAP_SLAPD_F (int) lload_global_init( void ); 151LDAP_SLAPD_F (int) lload_tls_init( void ); 152LDAP_SLAPD_F (int) lload_init( int mode, const char *name ); 153LDAP_SLAPD_F (int) lload_destroy( void ); 154LDAP_SLAPD_F (void) lload_counters_init( void ); 155 156/* 157 * libevent_support.c 158 */ 159LDAP_SLAPD_F (int) lload_libevent_init( void ); 160LDAP_SLAPD_F (void) lload_libevent_destroy( void ); 161 162#ifdef BALANCER_MODULE 163/* 164 * monitor.c 165 */ 166LDAP_SLAPD_F (int) lload_monitor_open( void ); 167LDAP_SLAPD_F (int) lload_monitor_backend_init( BackendInfo *bi, LloadBackend *b ); 168#endif /* BALANCER_MODULE */ 169 170/* 171 * operation.c 172 */ 173LDAP_SLAPD_V (ldap_pvt_thread_mutex_t) lload_pin_mutex; 174LDAP_SLAPD_V (unsigned long) lload_next_pin; 175LDAP_SLAPD_F (const char *) lload_msgtype2str( ber_tag_t tag ); 176LDAP_SLAPD_F (int) operation_upstream_cmp( const void *l, const void *r ); 177LDAP_SLAPD_F (int) operation_client_cmp( const void *l, const void *r ); 178LDAP_SLAPD_F (LloadOperation *) operation_init( LloadConnection *c, BerElement *ber ); 179LDAP_SLAPD_F (int) operation_send_abandon( LloadOperation *op, LloadConnection *c ); 180LDAP_SLAPD_F (void) operation_abandon( LloadOperation *op ); 181LDAP_SLAPD_F (void) operation_send_reject( LloadOperation *op, int result, const char *msg, int send_anyway ); 182LDAP_SLAPD_F (int) operation_send_reject_locked( LloadOperation *op, int result, const char *msg, int send_anyway ); 183LDAP_SLAPD_F (void) operation_lost_upstream( LloadOperation *op ); 184LDAP_SLAPD_F (void) operation_destroy( LloadOperation *op ); 185LDAP_SLAPD_F (int) operation_unlink( LloadOperation *op ); 186LDAP_SLAPD_F (int) operation_unlink_client( LloadOperation *op, LloadConnection *client ); 187LDAP_SLAPD_F (int) operation_unlink_upstream( LloadOperation *op, LloadConnection *upstream ); 188LDAP_SLAPD_F (void) operations_timeout( evutil_socket_t s, short what, void *arg ); 189LDAP_SLAPD_F (void) operation_update_conn_counters( LloadOperation *op, LloadConnection *upstream ); 190LDAP_SLAPD_F (void) operation_update_backend_counters( LloadOperation *op, LloadBackend *b ); 191LDAP_SLAPD_F (void) operation_update_global_rejected( LloadOperation *op ); 192/* 193 * upstream.c 194 */ 195LDAP_SLAPD_F (int) forward_final_response( LloadConnection *client, LloadOperation *op, BerElement *ber ); 196LDAP_SLAPD_F (int) forward_response( LloadConnection *client, LloadOperation *op, BerElement *ber ); 197LDAP_SLAPD_F (void *) upstream_bind( void *ctx, void *arg ); 198LDAP_SLAPD_F (LloadConnection *) upstream_init( ber_socket_t s, LloadBackend *b ); 199LDAP_SLAPD_F (void) upstream_destroy( LloadConnection *c ); 200 201LDAP_SLAPD_V (ber_len_t) sockbuf_max_incoming_client; 202LDAP_SLAPD_V (ber_len_t) sockbuf_max_incoming_upstream; 203LDAP_SLAPD_V (int) lload_conn_max_pdus_per_cycle; 204 205LDAP_SLAPD_V (lload_features_t) lload_features; 206 207LDAP_SLAPD_V (slap_mask_t) global_allows; 208LDAP_SLAPD_V (slap_mask_t) global_disallows; 209 210LDAP_SLAPD_V (const char) Versionstr[]; 211 212LDAP_SLAPD_V (int) global_gentlehup; 213LDAP_SLAPD_V (int) global_idletimeout; 214 215LDAP_SLAPD_V (struct timeval *) lload_timeout_api; 216LDAP_SLAPD_V (struct timeval *) lload_timeout_net; 217LDAP_SLAPD_V (struct timeval *) lload_write_timeout; 218 219LDAP_SLAPD_V (char *) global_host; 220LDAP_SLAPD_V (int) lber_debug; 221LDAP_SLAPD_V (int) ldap_syslog; 222 223LDAP_SLAPD_V (lload_global_stats_t) lload_stats; 224LDAP_SLAPD_V (char *) listeners_list; 225LDAP_END_DECL 226 227#endif /* PROTO_LLOAD_H */ 228