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openldap/servers/lloadd/proto-lload.h
Ondřej Kuzník 003a35c62f SASL bind support 
Introduces pinned operations. When SASL bind finishes, we might still
have to maintain a link between the client an an upstream for future
bind operations if we got a SASL Bind in Progress result code. We zero
out the msgids and remember a server-unique identifer on the client and
the relevant operation that lets us retrieve that link again. This
operation is reclaimed just like anything else when connections drop.

Hopefully, this should work for LDAP TXN and VC Exop support with SASL
later as well since it allows for many-to-many links to exist.
2020-11-17 17:58:14 +00:00

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/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright 1998-2015 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.
*/
#ifndef PROTO_LLOAD_H
#define PROTO_LLOAD_H
#include <ldap_cdefs.h>
#include "ldap_pvt.h"
#include <event2/event.h>
LDAP_BEGIN_DECL
struct config_args_s; /* config.h */
struct config_reply_s; /* config.h */
/*
* backend.c
*/
LDAP_SLAPD_F (void) backend_connect( evutil_socket_t s, short what, void *arg );
LDAP_SLAPD_F (void *) backend_connect_task( void *ctx, void *arg );
LDAP_SLAPD_F (void) backend_retry( LloadBackend *b );
LDAP_SLAPD_F (LloadConnection *) backend_select( LloadOperation *op, int *res );
LDAP_SLAPD_F (void) backends_destroy( void );
/*
* bind.c
*/
LDAP_SLAPD_F (int) request_bind( LloadConnection *c, LloadOperation *op );
LDAP_SLAPD_F (int) handle_bind_response( LloadConnection *client, LloadOperation *op, BerElement *ber );
LDAP_SLAPD_F (int) handle_vc_bind_response( LloadConnection *client, LloadOperation *op, BerElement *ber );
/*
* client.c
*/
LDAP_SLAPD_F (int) request_abandon( LloadConnection *c, LloadOperation *op );
LDAP_SLAPD_F (int) request_process( LloadConnection *c, LloadOperation *op );
LDAP_SLAPD_F (int) handle_one_request( LloadConnection *c );
LDAP_SLAPD_F (void) client_tls_handshake_cb( evutil_socket_t s, short what, void *arg );
LDAP_SLAPD_F (LloadConnection *) client_init( ber_socket_t s, LloadListener *url, const char *peername, struct event_base *base, int use_tls );
LDAP_SLAPD_F (void) client_reset( LloadConnection *c );
LDAP_SLAPD_F (void) client_destroy( LloadConnection *c );
LDAP_SLAPD_F (void) clients_destroy( void );
/*
* config.c
*/
LDAP_SLAPD_F (int) lload_read_config( const char *fname, const char *dir );
LDAP_SLAPD_F (void) lload_config_destroy( void );
LDAP_SLAPD_F (int) verb_to_mask( const char *word, slap_verbmasks *v );
LDAP_SLAPD_F (int) lload_tls_get_config( LDAP *ld, int opt, char **val );
LDAP_SLAPD_F (void) lload_bindconf_tls_defaults( slap_bindconf *bc );
LDAP_SLAPD_F (int) lload_backend_parse( const char *word, LloadBackend *b );
LDAP_SLAPD_F (int) lload_bindconf_parse( const char *word, slap_bindconf *bc );
LDAP_SLAPD_F (int) lload_bindconf_unparse( slap_bindconf *bc, struct berval *bv );
LDAP_SLAPD_F (int) lload_bindconf_tls_set( slap_bindconf *bc, LDAP *ld );
LDAP_SLAPD_F (void) lload_bindconf_free( slap_bindconf *bc );
/*
* connection.c
*/
LDAP_SLAPD_V (ldap_pvt_thread_mutex_t) clients_mutex;
LDAP_SLAPD_F (void) connection_write_cb( evutil_socket_t s, short what, void *arg );
LDAP_SLAPD_F (void) connection_read_cb( evutil_socket_t s, short what, void *arg );
LDAP_SLAPD_F (LloadConnection *) lload_connection_init( ber_socket_t s, const char *peername, int use_tls );
LDAP_SLAPD_F (void) connection_destroy( LloadConnection *c );
/*
* daemon.c
*/
LDAP_SLAPD_F (int) lloadd_daemon_init( const char *urls );
LDAP_SLAPD_F (int) lloadd_daemon_destroy( void );
LDAP_SLAPD_F (int) lloadd_daemon( struct event_base *daemon_base );
LDAP_SLAPD_F (LloadListener **) lloadd_get_listeners( void );
LDAP_SLAPD_F (void) listeners_reactivate( void );
LDAP_SLAPD_F (struct event_base *) lload_get_base( ber_socket_t s );
LDAP_SLAPD_V (int) lload_daemon_threads;
LDAP_SLAPD_V (int) lload_daemon_mask;
LDAP_SLAPD_F (void) lload_sig_shutdown( evutil_socket_t sig, short what, void *arg );
LDAP_SLAPD_V (struct evdns_base *) dnsbase;
LDAP_SLAPD_V (volatile sig_atomic_t) slapd_shutdown;
LDAP_SLAPD_V (int) lloadd_inited;
LDAP_SLAPD_V (struct event *) lload_timeout_event;
LDAP_SLAPD_V (LDAP *) lload_tls_backend_ld;
LDAP_SLAPD_V (LDAP *) lload_tls_ld;
LDAP_SLAPD_V (void *) lload_tls_ctx;
/*
* extended.c
*/
LDAP_SLAPD_V (Avlnode *) lload_exop_handlers;
LDAP_SLAPD_F (int) exop_handler_cmp( const void *l, const void *r );
LDAP_SLAPD_F (int) request_extended( LloadConnection *c, LloadOperation *op );
LDAP_SLAPD_F (int) lload_exop_init( void );
/*
* init.c
*/
LDAP_SLAPD_F (int) lload_init( int mode, const char *name );
LDAP_SLAPD_F (int) lload_destroy( void );
/*
* libevent_support.c
*/
LDAP_SLAPD_F (int) lload_libevent_init( void );
LDAP_SLAPD_F (void) lload_libevent_destroy( void );
/*
* operation.c
*/
LDAP_SLAPD_V (ldap_pvt_thread_mutex_t) lload_pin_mutex;
LDAP_SLAPD_V (unsigned long) lload_next_pin;
LDAP_SLAPD_F (const char *) lload_msgtype2str( ber_tag_t tag );
LDAP_SLAPD_F (int) operation_upstream_cmp( const void *l, const void *r );
LDAP_SLAPD_F (int) operation_client_cmp( const void *l, const void *r );
LDAP_SLAPD_F (LloadOperation *) operation_init( LloadConnection *c, BerElement *ber );
LDAP_SLAPD_F (int) operation_send_abandon( LloadOperation *op );
LDAP_SLAPD_F (void) operation_abandon( LloadOperation *op );
LDAP_SLAPD_F (void) operation_send_reject( LloadOperation *op, int result, const char *msg, int send_anyway );
LDAP_SLAPD_F (int) operation_send_reject_locked( LloadOperation *op, int result, const char *msg, int send_anyway );
LDAP_SLAPD_F (void) operation_lost_upstream( LloadOperation *op );
LDAP_SLAPD_F (void) operation_destroy_from_client( LloadOperation *op );
LDAP_SLAPD_F (void) operation_destroy_from_upstream( LloadOperation *op );
LDAP_SLAPD_F (void) operations_timeout( evutil_socket_t s, short what, void *arg );
/*
* upstream.c
*/
LDAP_SLAPD_F (int) forward_final_response( LloadConnection *client, LloadOperation *op, BerElement *ber );
LDAP_SLAPD_F (int) forward_response( LloadConnection *client, LloadOperation *op, BerElement *ber );
LDAP_SLAPD_F (LloadConnection *) upstream_init( ber_socket_t s, LloadBackend *b );
LDAP_SLAPD_F (void) upstream_destroy( LloadConnection *c );
LDAP_SLAPD_V (ber_len_t) sockbuf_max_incoming_client;
LDAP_SLAPD_V (ber_len_t) sockbuf_max_incoming_upstream;
LDAP_SLAPD_V (int) lload_conn_max_pdus_per_cycle;
LDAP_SLAPD_V (lload_features_t) lload_features;
LDAP_SLAPD_V (slap_mask_t) global_allows;
LDAP_SLAPD_V (slap_mask_t) global_disallows;
LDAP_SLAPD_V (const char) Versionstr[];
LDAP_SLAPD_V (int) global_gentlehup;
LDAP_SLAPD_V (int) global_idletimeout;
LDAP_SLAPD_V (struct timeval *) lload_timeout_api;
LDAP_SLAPD_V (struct timeval *) lload_timeout_net;
LDAP_SLAPD_V (struct timeval *) lload_write_timeout;
LDAP_SLAPD_V (char *) global_host;
LDAP_SLAPD_V (int) lber_debug;
LDAP_SLAPD_V (int) ldap_syslog;
LDAP_END_DECL
#endif /* PROTO_LLOAD_H */
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