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Diffstat (limited to 'servers/slapd/back-meta/back-meta.h')
| -rw-r--r-- | servers/slapd/back-meta/back-meta.h | 690 |
1 files changed, 690 insertions, 0 deletions
diff --git a/servers/slapd/back-meta/back-meta.h b/servers/slapd/back-meta/back-meta.h new file mode 100644 index 0000000..82b2105 --- /dev/null +++ b/servers/slapd/back-meta/back-meta.h @@ -0,0 +1,690 @@ +/* $OpenLDAP$ */ +/* This work is part of OpenLDAP Software <http://www.openldap.org/>. + * + * Copyright 1999-2022 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 + +#define SLAPD_META_CLIENT_PR 1 + +#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 + */ + struct rewrite_info *rwm_rw; + 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; + + Connection *conn; + char *ctx; + SlapReply *rs; +} 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 */ +extern int +suffix_massage_config( struct rewrite_info *info, + struct berval *pvnc, + struct berval *nvnc, + struct berval *prnc, + struct berval *nrnc ); +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 */ + |