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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 11:11:40 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 11:11:40 +0000
commit7731832751ab9f3c6ddeb66f186d3d7fa1934a6d (patch)
treee91015872543a59be2aad26c2fea02e41b57005d /servers/slapd/back-meta/back-meta.h
parentInitial commit. (diff)
downloadopenldap-7731832751ab9f3c6ddeb66f186d3d7fa1934a6d.tar.xz
openldap-7731832751ab9f3c6ddeb66f186d3d7fa1934a6d.zip
Adding upstream version 2.4.57+dfsg.upstream/2.4.57+dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'servers/slapd/back-meta/back-meta.h')
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diff --git a/servers/slapd/back-meta/back-meta.h b/servers/slapd/back-meta/back-meta.h
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+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1999-2021 The OpenLDAP Foundation.
+ * Portions Copyright 2001-2003 Pierangelo Masarati.
+ * Portions Copyright 1999-2003 Howard Chu.
+ * 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>.
+ */
+/* ACKNOWLEDGEMENTS:
+ * This work was initially developed by the Howard Chu for inclusion
+ * in OpenLDAP Software and subsequently enhanced by Pierangelo
+ * Masarati.
+ */
+
+#ifndef SLAPD_LDAP_H
+#error "include servers/slapd/back-ldap/back-ldap.h before this file!"
+#endif /* SLAPD_LDAP_H */
+
+#ifndef SLAPD_META_H
+#define SLAPD_META_H
+
+#ifdef LDAP_DEVEL
+#define SLAPD_META_CLIENT_PR 1
+#endif /* LDAP_DEVEL */
+
+#include "proto-meta.h"
+
+/* String rewrite library */
+#include "rewrite.h"
+
+LDAP_BEGIN_DECL
+
+/*
+ * Set META_BACK_PRINT_CONNTREE larger than 0 to dump the connection tree (debug only)
+ */
+#ifndef META_BACK_PRINT_CONNTREE
+#define META_BACK_PRINT_CONNTREE 0
+#endif /* !META_BACK_PRINT_CONNTREE */
+
+/* from back-ldap.h before rwm removal */
+struct ldapmap {
+ int drop_missing;
+
+ Avlnode *map;
+ Avlnode *remap;
+};
+
+struct ldapmapping {
+ struct berval src;
+ struct berval dst;
+};
+
+struct ldaprwmap {
+ /*
+ * DN rewriting
+ */
+#ifdef ENABLE_REWRITE
+ struct rewrite_info *rwm_rw;
+#else /* !ENABLE_REWRITE */
+ /* some time the suffix massaging without librewrite
+ * will be disabled */
+ BerVarray rwm_suffix_massage;
+#endif /* !ENABLE_REWRITE */
+ BerVarray rwm_bva_rewrite;
+
+ /*
+ * Attribute/objectClass mapping
+ */
+ struct ldapmap rwm_oc;
+ struct ldapmap rwm_at;
+ BerVarray rwm_bva_map;
+};
+
+/* Whatever context ldap_back_dn_massage needs... */
+typedef struct dncookie {
+ struct metatarget_t *target;
+
+#ifdef ENABLE_REWRITE
+ Connection *conn;
+ char *ctx;
+ SlapReply *rs;
+#else
+ int normalized;
+ int tofrom;
+#endif
+} dncookie;
+
+int ldap_back_dn_massage(dncookie *dc, struct berval *dn,
+ struct berval *res);
+
+extern int ldap_back_conn_cmp( const void *c1, const void *c2);
+extern int ldap_back_conn_dup( void *c1, void *c2 );
+extern void ldap_back_conn_free( void *c );
+
+/* attributeType/objectClass mapping */
+int mapping_cmp (const void *, const void *);
+int mapping_dup (void *, void *);
+
+void ldap_back_map_init ( struct ldapmap *lm, struct ldapmapping ** );
+int ldap_back_mapping ( struct ldapmap *map, struct berval *s,
+ struct ldapmapping **m, int remap );
+void ldap_back_map ( struct ldapmap *map, struct berval *s, struct berval *m,
+ int remap );
+#define BACKLDAP_MAP 0
+#define BACKLDAP_REMAP 1
+char *
+ldap_back_map_filter(
+ struct ldapmap *at_map,
+ struct ldapmap *oc_map,
+ struct berval *f,
+ int remap );
+
+int
+ldap_back_map_attrs(
+ Operation *op,
+ struct ldapmap *at_map,
+ AttributeName *a,
+ int remap,
+ char ***mapped_attrs );
+
+extern int
+ldap_back_filter_map_rewrite(
+ dncookie *dc,
+ Filter *f,
+ struct berval *fstr,
+ int remap,
+ void *memctx );
+
+/* suffix massaging by means of librewrite */
+#ifdef ENABLE_REWRITE
+extern int
+suffix_massage_config( struct rewrite_info *info,
+ struct berval *pvnc,
+ struct berval *nvnc,
+ struct berval *prnc,
+ struct berval *nrnc );
+#endif /* ENABLE_REWRITE */
+extern int
+ldap_back_referral_result_rewrite(
+ dncookie *dc,
+ BerVarray a_vals,
+ void *memctx );
+extern int
+ldap_dnattr_rewrite(
+ dncookie *dc,
+ BerVarray a_vals );
+extern int
+ldap_dnattr_result_rewrite(
+ dncookie *dc,
+ BerVarray a_vals );
+
+/* (end of) from back-ldap.h before rwm removal */
+
+/*
+ * A metasingleconn_t can be in the following, mutually exclusive states:
+ *
+ * - none (0x0U)
+ * - creating META_BACK_FCONN_CREATING
+ * - initialized META_BACK_FCONN_INITED
+ * - binding LDAP_BACK_FCONN_BINDING
+ * - bound/anonymous LDAP_BACK_FCONN_ISBOUND/LDAP_BACK_FCONN_ISANON
+ *
+ * possible modifiers are:
+ *
+ * - privileged LDAP_BACK_FCONN_ISPRIV
+ * - privileged, TLS LDAP_BACK_FCONN_ISTLS
+ * - subjected to idassert LDAP_BACK_FCONN_ISIDASR
+ * - tainted LDAP_BACK_FCONN_TAINTED
+ */
+
+#define META_BACK_FCONN_INITED (0x00100000U)
+#define META_BACK_FCONN_CREATING (0x00200000U)
+
+#define META_BACK_CONN_INITED(lc) LDAP_BACK_CONN_ISSET((lc), META_BACK_FCONN_INITED)
+#define META_BACK_CONN_INITED_SET(lc) LDAP_BACK_CONN_SET((lc), META_BACK_FCONN_INITED)
+#define META_BACK_CONN_INITED_CLEAR(lc) LDAP_BACK_CONN_CLEAR((lc), META_BACK_FCONN_INITED)
+#define META_BACK_CONN_INITED_CPY(lc, mlc) LDAP_BACK_CONN_CPY((lc), META_BACK_FCONN_INITED, (mlc))
+#define META_BACK_CONN_CREATING(lc) LDAP_BACK_CONN_ISSET((lc), META_BACK_FCONN_CREATING)
+#define META_BACK_CONN_CREATING_SET(lc) LDAP_BACK_CONN_SET((lc), META_BACK_FCONN_CREATING)
+#define META_BACK_CONN_CREATING_CLEAR(lc) LDAP_BACK_CONN_CLEAR((lc), META_BACK_FCONN_CREATING)
+#define META_BACK_CONN_CREATING_CPY(lc, mlc) LDAP_BACK_CONN_CPY((lc), META_BACK_FCONN_CREATING, (mlc))
+
+struct metainfo_t;
+
+#define META_NOT_CANDIDATE ((ber_tag_t)0x0)
+#define META_CANDIDATE ((ber_tag_t)0x1)
+#define META_BINDING ((ber_tag_t)0x2)
+#define META_RETRYING ((ber_tag_t)0x4)
+
+typedef struct metasingleconn_t {
+#define META_CND_ISSET(rs,f) ( ( (rs)->sr_tag & (f) ) == (f) )
+#define META_CND_SET(rs,f) ( (rs)->sr_tag |= (f) )
+#define META_CND_CLEAR(rs,f) ( (rs)->sr_tag &= ~(f) )
+
+#define META_CANDIDATE_RESET(rs) ( (rs)->sr_tag = 0 )
+#define META_IS_CANDIDATE(rs) META_CND_ISSET( (rs), META_CANDIDATE )
+#define META_CANDIDATE_SET(rs) META_CND_SET( (rs), META_CANDIDATE )
+#define META_CANDIDATE_CLEAR(rs) META_CND_CLEAR( (rs), META_CANDIDATE )
+#define META_IS_BINDING(rs) META_CND_ISSET( (rs), META_BINDING )
+#define META_BINDING_SET(rs) META_CND_SET( (rs), META_BINDING )
+#define META_BINDING_CLEAR(rs) META_CND_CLEAR( (rs), META_BINDING )
+#define META_IS_RETRYING(rs) META_CND_ISSET( (rs), META_RETRYING )
+#define META_RETRYING_SET(rs) META_CND_SET( (rs), META_RETRYING )
+#define META_RETRYING_CLEAR(rs) META_CND_CLEAR( (rs), META_RETRYING )
+
+ LDAP *msc_ld;
+ time_t msc_time;
+ struct berval msc_bound_ndn;
+ struct berval msc_cred;
+ unsigned msc_mscflags;
+ /* NOTE: lc_lcflags is redefined to msc_mscflags to reuse the macros
+ * defined for back-ldap */
+#define lc_lcflags msc_mscflags
+} metasingleconn_t;
+
+typedef struct metaconn_t {
+ ldapconn_base_t lc_base;
+#define mc_base lc_base
+#define mc_conn mc_base.lcb_conn
+#define mc_local_ndn mc_base.lcb_local_ndn
+#define mc_refcnt mc_base.lcb_refcnt
+#define mc_create_time mc_base.lcb_create_time
+#define mc_time mc_base.lcb_time
+
+ LDAP_TAILQ_ENTRY(metaconn_t) mc_q;
+
+ /* NOTE: msc_mscflags is used to recycle the #define
+ * in metasingleconn_t */
+ unsigned msc_mscflags;
+
+ /*
+ * means that the connection is bound;
+ * of course only one target actually is ...
+ */
+ int mc_authz_target;
+#define META_BOUND_NONE (-1)
+#define META_BOUND_ALL (-2)
+
+ struct metainfo_t *mc_info;
+
+ /* supersedes the connection stuff */
+ metasingleconn_t mc_conns[ 1 ];
+ /* NOTE: mc_conns must be last, because
+ * the required number of conns is malloc'ed
+ * in one block with the metaconn_t structure */
+} metaconn_t;
+
+typedef enum meta_st_t {
+#if 0 /* todo */
+ META_ST_EXACT = LDAP_SCOPE_BASE,
+#endif
+ META_ST_SUBTREE = LDAP_SCOPE_SUBTREE,
+ META_ST_SUBORDINATE = LDAP_SCOPE_SUBORDINATE,
+ META_ST_REGEX /* last + 1 */
+} meta_st_t;
+
+typedef struct metasubtree_t {
+ meta_st_t ms_type;
+ union {
+ struct berval msu_dn;
+ struct {
+ struct berval msr_regex_pattern;
+ regex_t msr_regex;
+ } msu_regex;
+ } ms_un;
+#define ms_dn ms_un.msu_dn
+#define ms_regex ms_un.msu_regex.msr_regex
+#define ms_regex_pattern ms_un.msu_regex.msr_regex_pattern
+
+ struct metasubtree_t *ms_next;
+} metasubtree_t;
+
+typedef struct metafilter_t {
+ struct metafilter_t *mf_next;
+ struct berval mf_regex_pattern;
+ regex_t mf_regex;
+} metafilter_t;
+
+typedef struct metacommon_t {
+ int mc_version;
+ int mc_nretries;
+#define META_RETRY_UNDEFINED (-2)
+#define META_RETRY_FOREVER (-1)
+#define META_RETRY_NEVER (0)
+#define META_RETRY_DEFAULT (10)
+
+ unsigned mc_flags;
+#define META_BACK_CMN_ISSET(mc,f) ( ( (mc)->mc_flags & (f) ) == (f) )
+#define META_BACK_CMN_QUARANTINE(mc) META_BACK_CMN_ISSET( (mc), LDAP_BACK_F_QUARANTINE )
+#define META_BACK_CMN_CHASE_REFERRALS(mc) META_BACK_CMN_ISSET( (mc), LDAP_BACK_F_CHASE_REFERRALS )
+#define META_BACK_CMN_NOREFS(mc) META_BACK_CMN_ISSET( (mc), LDAP_BACK_F_NOREFS )
+#define META_BACK_CMN_NOUNDEFFILTER(mc) META_BACK_CMN_ISSET( (mc), LDAP_BACK_F_NOUNDEFFILTER )
+#define META_BACK_CMN_SAVECRED(mc) META_BACK_CMN_ISSET( (mc), LDAP_BACK_F_SAVECRED )
+#define META_BACK_CMN_ST_REQUEST(mc) META_BACK_CMN_ISSET( (mc), LDAP_BACK_F_ST_REQUEST )
+
+#ifdef SLAPD_META_CLIENT_PR
+ /*
+ * client-side paged results:
+ * -1: accept unsolicited paged results responses
+ * 0: off
+ * >0: always request paged results with size == mt_ps
+ */
+#define META_CLIENT_PR_DISABLE (0)
+#define META_CLIENT_PR_ACCEPT_UNSOLICITED (-1)
+ ber_int_t mc_ps;
+#endif /* SLAPD_META_CLIENT_PR */
+
+ slap_retry_info_t mc_quarantine;
+ time_t mc_network_timeout;
+ struct timeval mc_bind_timeout;
+#define META_BIND_TIMEOUT LDAP_BACK_RESULT_UTIMEOUT
+ time_t mc_timeout[ SLAP_OP_LAST ];
+} metacommon_t;
+
+typedef struct metatarget_t {
+ char *mt_uri;
+ ldap_pvt_thread_mutex_t mt_uri_mutex;
+
+ /* TODO: we might want to enable different strategies
+ * for different targets */
+ LDAP_REBIND_PROC *mt_rebind_f;
+ LDAP_URLLIST_PROC *mt_urllist_f;
+ void *mt_urllist_p;
+
+ metafilter_t *mt_filter;
+ metasubtree_t *mt_subtree;
+ /* F: subtree-include; T: subtree-exclude */
+ int mt_subtree_exclude;
+
+ int mt_scope;
+
+ struct berval mt_psuffix; /* pretty suffix */
+ struct berval mt_nsuffix; /* normalized suffix */
+
+ struct berval mt_binddn;
+ struct berval mt_bindpw;
+
+ /* we only care about the TLS options here */
+ slap_bindconf mt_tls;
+
+ slap_idassert_t mt_idassert;
+#define mt_idassert_mode mt_idassert.si_mode
+#define mt_idassert_authcID mt_idassert.si_bc.sb_authcId
+#define mt_idassert_authcDN mt_idassert.si_bc.sb_binddn
+#define mt_idassert_passwd mt_idassert.si_bc.sb_cred
+#define mt_idassert_authzID mt_idassert.si_bc.sb_authzId
+#define mt_idassert_authmethod mt_idassert.si_bc.sb_method
+#define mt_idassert_sasl_mech mt_idassert.si_bc.sb_saslmech
+#define mt_idassert_sasl_realm mt_idassert.si_bc.sb_realm
+#define mt_idassert_secprops mt_idassert.si_bc.sb_secprops
+#define mt_idassert_tls mt_idassert.si_bc.sb_tls
+#define mt_idassert_flags mt_idassert.si_flags
+#define mt_idassert_authz mt_idassert.si_authz
+
+ struct ldaprwmap mt_rwmap;
+
+ sig_atomic_t mt_isquarantined;
+ ldap_pvt_thread_mutex_t mt_quarantine_mutex;
+
+ metacommon_t mt_mc;
+#define mt_nretries mt_mc.mc_nretries
+#define mt_flags mt_mc.mc_flags
+#define mt_version mt_mc.mc_version
+#define mt_ps mt_mc.mc_ps
+#define mt_network_timeout mt_mc.mc_network_timeout
+#define mt_bind_timeout mt_mc.mc_bind_timeout
+#define mt_timeout mt_mc.mc_timeout
+#define mt_quarantine mt_mc.mc_quarantine
+
+#define META_BACK_TGT_ISSET(mt,f) ( ( (mt)->mt_flags & (f) ) == (f) )
+#define META_BACK_TGT_ISMASK(mt,m,f) ( ( (mt)->mt_flags & (m) ) == (f) )
+
+#define META_BACK_TGT_SAVECRED(mt) META_BACK_TGT_ISSET( (mt), LDAP_BACK_F_SAVECRED )
+
+#define META_BACK_TGT_USE_TLS(mt) META_BACK_TGT_ISSET( (mt), LDAP_BACK_F_USE_TLS )
+#define META_BACK_TGT_PROPAGATE_TLS(mt) META_BACK_TGT_ISSET( (mt), LDAP_BACK_F_PROPAGATE_TLS )
+#define META_BACK_TGT_TLS_CRITICAL(mt) META_BACK_TGT_ISSET( (mt), LDAP_BACK_F_TLS_CRITICAL )
+
+#define META_BACK_TGT_CHASE_REFERRALS(mt) META_BACK_TGT_ISSET( (mt), LDAP_BACK_F_CHASE_REFERRALS )
+
+#define META_BACK_TGT_T_F(mt) META_BACK_TGT_ISMASK( (mt), LDAP_BACK_F_T_F_MASK, LDAP_BACK_F_T_F )
+#define META_BACK_TGT_T_F_DISCOVER(mt) META_BACK_TGT_ISMASK( (mt), LDAP_BACK_F_T_F_MASK2, LDAP_BACK_F_T_F_DISCOVER )
+
+#define META_BACK_TGT_ABANDON(mt) META_BACK_TGT_ISMASK( (mt), LDAP_BACK_F_CANCEL_MASK, LDAP_BACK_F_CANCEL_ABANDON )
+#define META_BACK_TGT_IGNORE(mt) META_BACK_TGT_ISMASK( (mt), LDAP_BACK_F_CANCEL_MASK, LDAP_BACK_F_CANCEL_IGNORE )
+#define META_BACK_TGT_CANCEL(mt) META_BACK_TGT_ISMASK( (mt), LDAP_BACK_F_CANCEL_MASK, LDAP_BACK_F_CANCEL_EXOP )
+#define META_BACK_TGT_CANCEL_DISCOVER(mt) META_BACK_TGT_ISMASK( (mt), LDAP_BACK_F_CANCEL_MASK2, LDAP_BACK_F_CANCEL_EXOP_DISCOVER )
+#define META_BACK_TGT_QUARANTINE(mt) META_BACK_TGT_ISSET( (mt), LDAP_BACK_F_QUARANTINE )
+
+#ifdef SLAP_CONTROL_X_SESSION_TRACKING
+#define META_BACK_TGT_ST_REQUEST(mt) META_BACK_TGT_ISSET( (mt), LDAP_BACK_F_ST_REQUEST )
+#define META_BACK_TGT_ST_RESPONSE(mt) META_BACK_TGT_ISSET( (mt), LDAP_BACK_F_ST_RESPONSE )
+#endif /* SLAP_CONTROL_X_SESSION_TRACKING */
+
+#define META_BACK_TGT_NOREFS(mt) META_BACK_TGT_ISSET( (mt), LDAP_BACK_F_NOREFS )
+#define META_BACK_TGT_NOUNDEFFILTER(mt) META_BACK_TGT_ISSET( (mt), LDAP_BACK_F_NOUNDEFFILTER )
+
+ slap_mask_t mt_rep_flags;
+
+} metatarget_t;
+
+typedef struct metadncache_t {
+ ldap_pvt_thread_mutex_t mutex;
+ Avlnode *tree;
+
+#define META_DNCACHE_DISABLED (0)
+#define META_DNCACHE_FOREVER ((time_t)(-1))
+ time_t ttl; /* seconds; 0: no cache, -1: no expiry */
+} metadncache_t;
+
+typedef struct metacandidates_t {
+ int mc_ntargets;
+ SlapReply *mc_candidates;
+} metacandidates_t;
+
+/*
+ * Hook to allow mucking with metainfo_t/metatarget_t when quarantine is over
+ */
+typedef int (*meta_back_quarantine_f)( struct metainfo_t *, int target, void * );
+
+typedef struct metainfo_t {
+ int mi_ntargets;
+ int mi_defaulttarget;
+#define META_DEFAULT_TARGET_NONE (-1)
+
+#define mi_nretries mi_mc.mc_nretries
+#define mi_flags mi_mc.mc_flags
+#define mi_version mi_mc.mc_version
+#define mi_ps mi_mc.mc_ps
+#define mi_network_timeout mi_mc.mc_network_timeout
+#define mi_bind_timeout mi_mc.mc_bind_timeout
+#define mi_timeout mi_mc.mc_timeout
+#define mi_quarantine mi_mc.mc_quarantine
+
+ metatarget_t **mi_targets;
+ metacandidates_t *mi_candidates;
+
+ LDAP_REBIND_PROC *mi_rebind_f;
+ LDAP_URLLIST_PROC *mi_urllist_f;
+
+ metadncache_t mi_cache;
+
+ /* cached connections;
+ * special conns are in tailq rather than in tree */
+ ldap_avl_info_t mi_conninfo;
+ struct {
+ int mic_num;
+ LDAP_TAILQ_HEAD(mc_conn_priv_q, metaconn_t) mic_priv;
+ } mi_conn_priv[ LDAP_BACK_PCONN_LAST ];
+ int mi_conn_priv_max;
+
+ /* NOTE: quarantine uses the connection mutex */
+ meta_back_quarantine_f mi_quarantine_f;
+ void *mi_quarantine_p;
+
+#define li_flags mi_flags
+/* uses flags as defined in <back-ldap/back-ldap.h> */
+#define META_BACK_F_ONERR_STOP LDAP_BACK_F_ONERR_STOP
+#define META_BACK_F_ONERR_REPORT (0x02000000U)
+#define META_BACK_F_ONERR_MASK (META_BACK_F_ONERR_STOP|META_BACK_F_ONERR_REPORT)
+#define META_BACK_F_DEFER_ROOTDN_BIND (0x04000000U)
+#define META_BACK_F_PROXYAUTHZ_ALWAYS (0x08000000U) /* users always proxyauthz */
+#define META_BACK_F_PROXYAUTHZ_ANON (0x10000000U) /* anonymous always proxyauthz */
+#define META_BACK_F_PROXYAUTHZ_NOANON (0x20000000U) /* anonymous remains anonymous */
+
+#define META_BACK_ONERR_STOP(mi) LDAP_BACK_ISSET( (mi), META_BACK_F_ONERR_STOP )
+#define META_BACK_ONERR_REPORT(mi) LDAP_BACK_ISSET( (mi), META_BACK_F_ONERR_REPORT )
+#define META_BACK_ONERR_CONTINUE(mi) ( !LDAP_BACK_ISSET( (mi), META_BACK_F_ONERR_MASK ) )
+
+#define META_BACK_DEFER_ROOTDN_BIND(mi) LDAP_BACK_ISSET( (mi), META_BACK_F_DEFER_ROOTDN_BIND )
+#define META_BACK_PROXYAUTHZ_ALWAYS(mi) LDAP_BACK_ISSET( (mi), META_BACK_F_PROXYAUTHZ_ALWAYS )
+#define META_BACK_PROXYAUTHZ_ANON(mi) LDAP_BACK_ISSET( (mi), META_BACK_F_PROXYAUTHZ_ANON )
+#define META_BACK_PROXYAUTHZ_NOANON(mi) LDAP_BACK_ISSET( (mi), META_BACK_F_PROXYAUTHZ_NOANON )
+
+#define META_BACK_QUARANTINE(mi) LDAP_BACK_ISSET( (mi), LDAP_BACK_F_QUARANTINE )
+
+ time_t mi_conn_ttl;
+ time_t mi_idle_timeout;
+
+ metacommon_t mi_mc;
+ ldap_extra_t *mi_ldap_extra;
+
+} metainfo_t;
+
+typedef enum meta_op_type {
+ META_OP_ALLOW_MULTIPLE = 0,
+ META_OP_REQUIRE_SINGLE,
+ META_OP_REQUIRE_ALL
+} meta_op_type;
+
+SlapReply *
+meta_back_candidates_get( Operation *op );
+
+extern metaconn_t *
+meta_back_getconn(
+ Operation *op,
+ SlapReply *rs,
+ int *candidate,
+ ldap_back_send_t sendok );
+
+extern void
+meta_back_release_conn_lock(
+ metainfo_t *mi,
+ metaconn_t *mc,
+ int dolock );
+#define meta_back_release_conn(mi, mc) meta_back_release_conn_lock( (mi), (mc), 1 )
+
+extern int
+meta_back_retry(
+ Operation *op,
+ SlapReply *rs,
+ metaconn_t **mcp,
+ int candidate,
+ ldap_back_send_t sendok );
+
+extern void
+meta_back_conn_free(
+ void *v_mc );
+
+#if META_BACK_PRINT_CONNTREE > 0
+extern void
+meta_back_print_conntree(
+ metainfo_t *mi,
+ char *msg );
+#endif
+
+extern int
+meta_back_init_one_conn(
+ Operation *op,
+ SlapReply *rs,
+ metaconn_t *mc,
+ int candidate,
+ int ispriv,
+ ldap_back_send_t sendok,
+ int dolock );
+
+extern void
+meta_back_quarantine(
+ Operation *op,
+ SlapReply *rs,
+ int candidate );
+
+extern int
+meta_back_dobind(
+ Operation *op,
+ SlapReply *rs,
+ metaconn_t *mc,
+ ldap_back_send_t sendok );
+
+extern int
+meta_back_single_dobind(
+ Operation *op,
+ SlapReply *rs,
+ metaconn_t **mcp,
+ int candidate,
+ ldap_back_send_t sendok,
+ int retries,
+ int dolock );
+
+extern int
+meta_back_proxy_authz_cred(
+ metaconn_t *mc,
+ int candidate,
+ Operation *op,
+ SlapReply *rs,
+ ldap_back_send_t sendok,
+ struct berval *binddn,
+ struct berval *bindcred,
+ int *method );
+
+extern int
+meta_back_cancel(
+ metaconn_t *mc,
+ Operation *op,
+ SlapReply *rs,
+ ber_int_t msgid,
+ int candidate,
+ ldap_back_send_t sendok );
+
+extern int
+meta_back_op_result(
+ metaconn_t *mc,
+ Operation *op,
+ SlapReply *rs,
+ int candidate,
+ ber_int_t msgid,
+ time_t timeout,
+ ldap_back_send_t sendok );
+
+extern int
+meta_back_controls_add(
+ Operation *op,
+ SlapReply *rs,
+ metaconn_t *mc,
+ int candidate,
+ LDAPControl ***pctrls );
+
+extern int
+back_meta_LTX_init_module(
+ int argc,
+ char *argv[] );
+
+extern int
+meta_back_conn_cmp(
+ const void *c1,
+ const void *c2 );
+
+extern int
+meta_back_conndn_cmp(
+ const void *c1,
+ const void *c2 );
+
+extern int
+meta_back_conndn_dup(
+ void *c1,
+ void *c2 );
+
+/*
+ * Candidate stuff
+ */
+extern int
+meta_back_is_candidate(
+ metatarget_t *mt,
+ struct berval *ndn,
+ int scope );
+
+extern int
+meta_back_select_unique_candidate(
+ metainfo_t *mi,
+ struct berval *ndn );
+
+extern int
+meta_clear_unused_candidates(
+ Operation *op,
+ int candidate );
+
+extern int
+meta_clear_one_candidate(
+ Operation *op,
+ metaconn_t *mc,
+ int candidate );
+
+/*
+ * Dn cache stuff (experimental)
+ */
+extern int
+meta_dncache_cmp(
+ const void *c1,
+ const void *c2 );
+
+extern int
+meta_dncache_dup(
+ void *c1,
+ void *c2 );
+
+#define META_TARGET_NONE (-1)
+#define META_TARGET_MULTIPLE (-2)
+extern int
+meta_dncache_get_target(
+ metadncache_t *cache,
+ struct berval *ndn );
+
+extern int
+meta_dncache_update_entry(
+ metadncache_t *cache,
+ struct berval *ndn,
+ int target );
+
+extern int
+meta_dncache_delete_entry(
+ metadncache_t *cache,
+ struct berval *ndn );
+
+extern void
+meta_dncache_free( void *entry );
+
+extern void
+meta_back_map_free( struct ldapmap *lm );
+
+extern int
+meta_subtree_destroy( metasubtree_t *ms );
+
+extern void
+meta_filter_destroy( metafilter_t *mf );
+
+extern int
+meta_target_finish( metainfo_t *mi, metatarget_t *mt,
+ const char *log, char *msg, size_t msize
+);
+
+extern LDAP_REBIND_PROC meta_back_default_rebind;
+extern LDAP_URLLIST_PROC meta_back_default_urllist;
+
+LDAP_END_DECL
+
+#endif /* SLAPD_META_H */
+