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openldap/servers/slapd/back-asyncmeta/back-asyncmeta.h
Quanah Gibson-Mount f6ad222e41 Happy New Year!
2020-01-09 16:50:21 +00:00

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/* back-asyncmeta.h - main header file for back-asyncmeta module */
/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright 2016-2020 The OpenLDAP Foundation.
* Portions Copyright 2016 Symas Corporation.
* 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 developed by Symas Corporation
* based on back-meta module for inclusion in OpenLDAP Software.
* This work was sponsored by Ericsson. */
#ifndef SLAPD_LDAP_H
#error "include servers/slapd/back-ldap/back-ldap.h before this file!"
#endif /* SLAPD_LDAP_H */
#ifndef SLAPD_ASYNCMETA_H
#define SLAPD_ASYNCMETA_H
#ifdef LDAP_DEVEL
#define SLAPD_META_CLIENT_PR 1
#endif /* LDAP_DEVEL */
#include "proto-asyncmeta.h"
#include "ldap_rq.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 */
/*
* A 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_FCONN_INVALID (0x00400000U)
#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))
#define META_BACK_CONN_INVALID(lc) LDAP_BACK_CONN_ISSET((lc), META_BACK_FCONN_INVALID)
#define META_BACK_CONN_INVALID_SET(lc) LDAP_BACK_CONN_SET((lc), META_BACK_FCONN_INVALID)
#define META_BACK_CONN_INVALID_CLEAR(lc) LDAP_BACK_CONN_CLEAR((lc), META_BACK_FCONN_INVALID)
struct a_metainfo_t;
struct a_metaconn_t;
struct a_metatarget_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 bm_context_t {
LDAP_STAILQ_ENTRY(bm_context_t) bc_next;
struct a_metaconn_t *bc_mc;
time_t timeout;
time_t stoptime;
ldap_back_send_t sendok;
ldap_back_send_t retrying;
int candidate_match;
volatile int bc_active;
int searchtime; /* stoptime is a search timelimit */
int is_ok;
int is_root;
volatile sig_atomic_t bc_invalid;
SlapReply rs;
Operation *op;
Operation copy_op;
LDAPControl **ctrls;
int *msgids;
int *nretries; /* number of times to retry a failed send on an msc */
struct berval c_peer_name; /* peer name of original op->o_conn*/
SlapReply *candidates;
} bm_context_t;
typedef struct a_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;
LDAP *msc_ldr;
time_t msc_time;
time_t msc_binding_time;
time_t msc_result_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
volatile int msc_active;
/* Connection for the select */
Connection *conn;
} a_metasingleconn_t;
typedef struct a_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(a_metaconn_t) mc_q;
/* NOTE: msc_mscflags is used to recycle the #define
* in metasingleconn_t */
unsigned msc_mscflags;
int mc_active;
/*
* 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 a_metainfo_t *mc_info;
int pending_ops;
ldap_pvt_thread_mutex_t mc_om_mutex;
/* queue for pending operations */
LDAP_STAILQ_HEAD(BCList, bm_context_t) mc_om_list;
/* supersedes the connection stuff */
a_metasingleconn_t *mc_conns;
} a_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 a_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 a_metasubtree_t *ms_next;
} a_metasubtree_t;
typedef struct metafilter_t {
struct metafilter_t *mf_next;
struct berval mf_regex_pattern;
regex_t mf_regex;
} metafilter_t;
typedef struct a_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 (2)
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 ];
} a_metacommon_t;
typedef struct a_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;
a_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_lsuffixm; /* local suffix for massage */
struct berval mt_rsuffixm; /* remote suffix for massage */
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
sig_atomic_t mt_isquarantined;
ldap_pvt_thread_mutex_t mt_quarantine_mutex;
a_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 )
#define META_BACK_CFG_MAX_PENDING_OPS 0x80
#define META_BACK_CFG_MAX_TARGET_CONNS 0xFF
/* the interval of the timeout checking loop in microseconds
* possibly make this configurable? */
#define META_BACK_CFG_MAX_TIMEOUT_LOOP 0x70000
slap_mask_t mt_rep_flags;
int mt_timeout_ops;
} a_metatarget_t;
typedef struct a_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 */
} a_metadncache_t;
typedef struct a_metacandidates_t {
int mc_ntargets;
SlapReply *mc_candidates;
} a_metacandidates_t;
/*
* Hook to allow mucking with a_metainfo_t/a_metatarget_t when quarantine is over
*/
typedef int (*asyncmeta_quarantine_f)( struct a_metainfo_t *, int target, void * );
struct meta_out_message_t;
typedef struct a_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
a_metatarget_t **mi_targets;
a_metacandidates_t *mi_candidates;
LDAP_REBIND_PROC *mi_rebind_f;
LDAP_URLLIST_PROC *mi_urllist_f;
a_metadncache_t mi_cache;
struct {
int mic_num;
LDAP_TAILQ_HEAD(mc_conn_priv_q, a_metaconn_t) mic_priv;
} mi_conn_priv[ LDAP_BACK_PCONN_LAST ];
int mi_conn_priv_max;
/* NOTE: quarantine uses the connection mutex */
asyncmeta_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_idle_timeout;
struct re_s *mi_task;
a_metacommon_t mi_mc;
ldap_extra_t *mi_ldap_extra;
int mi_max_timeout_ops;
int mi_max_pending_ops;
int mi_max_target_conns;
/* mutex for access to the connection structures */
ldap_pvt_thread_mutex_t mi_mc_mutex;
int mi_num_conns;
int mi_next_conn;
a_metaconn_t *mi_conns;
struct berval mi_suffix;
} a_metainfo_t;
typedef enum meta_op_type {
META_OP_ALLOW_MULTIPLE = 0,
META_OP_REQUIRE_SINGLE,
META_OP_REQUIRE_ALL
} meta_op_type;
/* Whatever context asyncmeta_dn_massage needs... */
typedef struct a_dncookie {
Operation *op;
struct a_metatarget_t *target;
void *memctx;
int to_from;
} a_dncookie;
#define MASSAGE_REQ 0
#define MASSAGE_REP 1
extern void
asyncmeta_dn_massage(a_dncookie *dc, struct berval *dn,
struct berval *res);
extern void
asyncmeta_filter_map_rewrite(
a_dncookie *dc,
Filter *f,
struct berval *fstr );
extern void
asyncmeta_back_referral_result_rewrite(
a_dncookie *dc,
BerVarray a_vals );
extern a_metaconn_t *
asyncmeta_getconn(
Operation *op,
SlapReply *rs,
SlapReply *candidates,
int *candidate,
ldap_back_send_t sendok,
int alloc_new);
extern int
asyncmeta_init_one_conn(
Operation *op,
SlapReply *rs,
a_metaconn_t *mc,
int candidate,
int ispriv,
ldap_back_send_t sendok,
int dolock );
extern void
asyncmeta_quarantine(
Operation *op,
a_metainfo_t *mi,
SlapReply *rs,
int candidate );
extern int
asyncmeta_proxy_authz_cred(
a_metaconn_t *mc,
int candidate,
Operation *op,
SlapReply *rs,
ldap_back_send_t sendok,
struct berval *binddn,
struct berval *bindcred,
int *method );
extern int
asyncmeta_controls_add(
Operation *op,
SlapReply *rs,
a_metaconn_t *mc,
int candidate,
int isroot,
LDAPControl ***pctrls );
extern int
asyncmeta_LTX_init_module(
int argc,
char *argv[] );
/*
* Candidate stuff
*/
extern int
asyncmeta_is_candidate(
a_metatarget_t *mt,
struct berval *ndn,
int scope );
extern int
asyncmeta_select_unique_candidate(
a_metainfo_t *mi,
struct berval *ndn );
extern int
asyncmeta_clear_unused_candidates(
Operation *op,
int candidate,
a_metaconn_t *mc,
SlapReply *candidates);
/*
* Dn cache stuff (experimental)
*/
extern int
asyncmeta_dncache_cmp(
const void *c1,
const void *c2 );
extern int
asyncmeta_dncache_dup(
void *c1,
void *c2 );
#define META_TARGET_NONE (-1)
#define META_TARGET_MULTIPLE (-2)
extern int
asyncmeta_dncache_get_target(
a_metadncache_t *cache,
struct berval *ndn );
extern int
meta_dncache_update_entry(
a_metadncache_t *cache,
struct berval *ndn,
int target );
extern int
asyncmeta_dncache_delete_entry(
a_metadncache_t *cache,
struct berval *ndn );
extern void
asyncmeta_dncache_free( void *entry );
extern int
asyncmeta_subtree_destroy( a_metasubtree_t *ms );
extern void
asyncmeta_filter_destroy( metafilter_t *mf );
extern int
asyncmeta_target_finish( a_metainfo_t *mi, a_metatarget_t *mt,
const char *log, char *msg, size_t msize
);
extern LDAP_REBIND_PROC asyncmeta_back_default_rebind;
extern LDAP_URLLIST_PROC asyncmeta_back_default_urllist;
/* IGNORE means that target does not (no longer) participate
* in the search;
* NOTREADY means the search on that target has not been initialized yet
*/
#define META_MSGID_IGNORE (-1)
#define META_MSGID_NEED_BIND (-2)
#define META_MSGID_CONNECTING (-3)
#define META_MSGID_UNDEFINED (-4)
typedef enum meta_search_candidate_t {
META_SEARCH_UNDEFINED = -2,
META_SEARCH_ERR = -1,
META_SEARCH_NOT_CANDIDATE,
META_SEARCH_CANDIDATE,
META_SEARCH_BINDING,
META_SEARCH_NEED_BIND,
META_SEARCH_CONNECTING
} meta_search_candidate_t;
Operation* asyncmeta_copy_op(Operation *op);
void asyncmeta_clear_bm_context(bm_context_t *bc);
int asyncmeta_add_message_queue(a_metaconn_t *mc, bm_context_t *bc);
void asyncmeta_drop_bc(a_metaconn_t *mc, bm_context_t *bc);
void asyncmeta_drop_bc_from_fconn(bm_context_t *bc);
bm_context_t *
asyncmeta_find_message(ber_int_t msgid, a_metaconn_t *mc, int candidate);
void asyncmeta_memctx_toggle(void *thrctx);
void* asyncmeta_op_handle_result(void *ctx, void *arg);
int asyncmeta_back_cleanup( Operation *op, SlapReply *rs, bm_context_t *bm );
int
asyncmeta_clear_one_msc(
Operation *op,
a_metaconn_t *msc,
int candidate,
int unbind,
const char * caller);
a_metaconn_t *
asyncmeta_get_next_mc( a_metainfo_t *mi );
void* asyncmeta_timeout_loop(void *ctx, void *arg);
int
asyncmeta_start_timeout_loop(a_metatarget_t *mt, a_metainfo_t *mi);
void asyncmeta_set_msc_time(a_metasingleconn_t *msc);
int asyncmeta_back_cancel(
a_metaconn_t *mc,
Operation *op,
ber_int_t msgid,
int candidate );
void
asyncmeta_send_result(bm_context_t* bc, int error, char *text);
int asyncmeta_new_bm_context(Operation *op,
SlapReply *rs,
bm_context_t **new_bc,
int ntargets,
a_metainfo_t *mi);
int asyncmeta_start_listeners(a_metaconn_t *mc, SlapReply *candidates, bm_context_t *bc);
int asyncmeta_start_one_listener(a_metaconn_t *mc, SlapReply *candidates, bm_context_t *bc, int candidate);
meta_search_candidate_t
asyncmeta_back_search_start(
Operation *op,
SlapReply *rs,
a_metaconn_t *mc,
bm_context_t *bc,
int candidate,
struct berval *prcookie,
ber_int_t prsize,
int do_lock);
meta_search_candidate_t
asyncmeta_dobind_init(
Operation *op,
SlapReply *rs,
bm_context_t *bc,
a_metaconn_t *mc,
int candidate);
meta_search_candidate_t
asyncmeta_dobind_init_with_retry(
Operation *op,
SlapReply *rs,
bm_context_t *bc,
a_metaconn_t *mc,
int candidate);
meta_search_candidate_t
asyncmeta_back_add_start(Operation *op,
SlapReply *rs,
a_metaconn_t *mc,
bm_context_t *bc,
int candidate,
int do_lock);
meta_search_candidate_t
asyncmeta_back_modify_start(Operation *op,
SlapReply *rs,
a_metaconn_t *mc,
bm_context_t *bc,
int candidate,
int do_lock);
meta_search_candidate_t
asyncmeta_back_modrdn_start(Operation *op,
SlapReply *rs,
a_metaconn_t *mc,
bm_context_t *bc,
int candidate,
int do_lock);
meta_search_candidate_t
asyncmeta_back_delete_start(Operation *op,
SlapReply *rs,
a_metaconn_t *mc,
bm_context_t *bc,
int candidate,
int do_lock);
meta_search_candidate_t
asyncmeta_back_compare_start(Operation *op,
SlapReply *rs,
a_metaconn_t *mc,
bm_context_t *bc,
int candidate,
int do_lock);
bm_context_t *
asyncmeta_bc_in_queue(a_metaconn_t *mc,
bm_context_t *bc);
int
asyncmeta_error_cleanup(Operation *op,
SlapReply *rs,
bm_context_t *bc,
a_metaconn_t *mc,
int candidate);
int
asyncmeta_reset_msc(Operation *op,
a_metaconn_t *mc,
int candidate,
int unbind,
const char *caller);
void
asyncmeta_back_conn_free(
void *v_mc );
void asyncmeta_log_msc(a_metasingleconn_t *msc);
void asyncmeta_log_conns(a_metainfo_t *mi);
void asyncmeta_get_timestamp(char *buf);
int
asyncmeta_dncache_update_entry(a_metadncache_t *cache,
struct berval *ndn,
int target );
void
asyncmeta_dnattr_result_rewrite(a_dncookie *dc,
BerVarray a_vals);
void
asyncmeta_referral_result_rewrite(a_dncookie *dc,
BerVarray a_vals);
meta_search_candidate_t
asyncmeta_send_all_pending_ops(a_metaconn_t *mc,
int candidate,
void *ctx,
int dolock);
meta_search_candidate_t
asyncmeta_return_bind_errors(a_metaconn_t *mc,
int candidate,
SlapReply *bind_result,
void *ctx,
int dolock);
/* The the maximum time in seconds after a result has been received on a connection,
* after which it can be reset if a sender error occurs. Should this be configurable? */
#define META_BACK_RESULT_INTERVAL (2)
extern int asyncmeta_debug;
LDAP_END_DECL
#endif /* SLAPD_ASYNCMETA_H */
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