1 /* $NetBSD: back-meta.h,v 1.1.1.3 2010/03/08 02:14:20 lukem Exp $ */ 2 3 /* OpenLDAP: pkg/ldap/servers/slapd/back-meta/back-meta.h,v 1.64.2.15 2009/08/26 00:50:20 quanah Exp */ 4 /* This work is part of OpenLDAP Software <http://www.openldap.org/>. 5 * 6 * Copyright 1999-2009 The OpenLDAP Foundation. 7 * Portions Copyright 2001-2003 Pierangelo Masarati. 8 * Portions Copyright 1999-2003 Howard Chu. 9 * All rights reserved. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted only as authorized by the OpenLDAP 13 * Public License. 14 * 15 * A copy of this license is available in the file LICENSE in the 16 * top-level directory of the distribution or, alternatively, at 17 * <http://www.OpenLDAP.org/license.html>. 18 */ 19 /* ACKNOWLEDGEMENTS: 20 * This work was initially developed by the Howard Chu for inclusion 21 * in OpenLDAP Software and subsequently enhanced by Pierangelo 22 * Masarati. 23 */ 24 25 #ifndef SLAPD_LDAP_H 26 #error "include servers/slapd/back-ldap/back-ldap.h before this file!" 27 #endif /* SLAPD_LDAP_H */ 28 29 #ifndef SLAPD_META_H 30 #define SLAPD_META_H 31 32 #include "proto-meta.h" 33 34 /* String rewrite library */ 35 #include "rewrite.h" 36 37 LDAP_BEGIN_DECL 38 39 /* 40 * Set META_BACK_PRINT_CONNTREE larger than 0 to dump the connection tree (debug only) 41 */ 42 #ifndef META_BACK_PRINT_CONNTREE 43 #define META_BACK_PRINT_CONNTREE 0 44 #endif /* !META_BACK_PRINT_CONNTREE */ 45 46 /* from back-ldap.h before rwm removal */ 47 struct ldapmap { 48 int drop_missing; 49 50 Avlnode *map; 51 Avlnode *remap; 52 }; 53 54 struct ldapmapping { 55 struct berval src; 56 struct berval dst; 57 }; 58 59 struct ldaprwmap { 60 /* 61 * DN rewriting 62 */ 63 #ifdef ENABLE_REWRITE 64 struct rewrite_info *rwm_rw; 65 #else /* !ENABLE_REWRITE */ 66 /* some time the suffix massaging without librewrite 67 * will be disabled */ 68 BerVarray rwm_suffix_massage; 69 #endif /* !ENABLE_REWRITE */ 70 71 /* 72 * Attribute/objectClass mapping 73 */ 74 struct ldapmap rwm_oc; 75 struct ldapmap rwm_at; 76 }; 77 78 /* Whatever context ldap_back_dn_massage needs... */ 79 typedef struct dncookie { 80 struct metatarget_t *target; 81 82 #ifdef ENABLE_REWRITE 83 Connection *conn; 84 char *ctx; 85 SlapReply *rs; 86 #else 87 int normalized; 88 int tofrom; 89 #endif 90 } dncookie; 91 92 int ldap_back_dn_massage(dncookie *dc, struct berval *dn, 93 struct berval *res); 94 95 extern int ldap_back_conn_cmp( const void *c1, const void *c2); 96 extern int ldap_back_conn_dup( void *c1, void *c2 ); 97 extern void ldap_back_conn_free( void *c ); 98 99 /* attributeType/objectClass mapping */ 100 int mapping_cmp (const void *, const void *); 101 int mapping_dup (void *, void *); 102 103 void ldap_back_map_init ( struct ldapmap *lm, struct ldapmapping ** ); 104 int ldap_back_mapping ( struct ldapmap *map, struct berval *s, 105 struct ldapmapping **m, int remap ); 106 void ldap_back_map ( struct ldapmap *map, struct berval *s, struct berval *m, 107 int remap ); 108 #define BACKLDAP_MAP 0 109 #define BACKLDAP_REMAP 1 110 char * 111 ldap_back_map_filter( 112 struct ldapmap *at_map, 113 struct ldapmap *oc_map, 114 struct berval *f, 115 int remap ); 116 117 int 118 ldap_back_map_attrs( 119 struct ldapmap *at_map, 120 AttributeName *a, 121 int remap, 122 char ***mapped_attrs ); 123 124 extern int ldap_back_map_config( 125 struct ldapmap *oc_map, 126 struct ldapmap *at_map, 127 const char *fname, 128 int lineno, 129 int argc, 130 char **argv ); 131 132 extern int 133 ldap_back_filter_map_rewrite( 134 dncookie *dc, 135 Filter *f, 136 struct berval *fstr, 137 int remap ); 138 139 /* suffix massaging by means of librewrite */ 140 #ifdef ENABLE_REWRITE 141 extern int 142 suffix_massage_config( struct rewrite_info *info, 143 struct berval *pvnc, 144 struct berval *nvnc, 145 struct berval *prnc, 146 struct berval *nrnc ); 147 #endif /* ENABLE_REWRITE */ 148 extern int 149 ldap_back_referral_result_rewrite( 150 dncookie *dc, 151 BerVarray a_vals ); 152 extern int 153 ldap_dnattr_rewrite( 154 dncookie *dc, 155 BerVarray a_vals ); 156 extern int 157 ldap_dnattr_result_rewrite( 158 dncookie *dc, 159 BerVarray a_vals ); 160 161 /* (end of) from back-ldap.h before rwm removal */ 162 163 /* 164 * A metasingleconn_t can be in the following, mutually exclusive states: 165 * 166 * - none (0x0U) 167 * - creating META_BACK_FCONN_CREATING 168 * - initialized META_BACK_FCONN_INITED 169 * - binding LDAP_BACK_FCONN_BINDING 170 * - bound/anonymous LDAP_BACK_FCONN_ISBOUND/LDAP_BACK_FCONN_ISANON 171 * 172 * possible modifiers are: 173 * 174 * - privileged LDAP_BACK_FCONN_ISPRIV 175 * - privileged, TLS LDAP_BACK_FCONN_ISTLS 176 * - subjected to idassert LDAP_BACK_FCONN_ISIDASR 177 * - tainted LDAP_BACK_FCONN_TAINTED 178 */ 179 180 #define META_BACK_FCONN_INITED (0x00100000U) 181 #define META_BACK_FCONN_CREATING (0x00200000U) 182 183 #define META_BACK_CONN_INITED(lc) LDAP_BACK_CONN_ISSET((lc), META_BACK_FCONN_INITED) 184 #define META_BACK_CONN_INITED_SET(lc) LDAP_BACK_CONN_SET((lc), META_BACK_FCONN_INITED) 185 #define META_BACK_CONN_INITED_CLEAR(lc) LDAP_BACK_CONN_CLEAR((lc), META_BACK_FCONN_INITED) 186 #define META_BACK_CONN_INITED_CPY(lc, mlc) LDAP_BACK_CONN_CPY((lc), META_BACK_FCONN_INITED, (mlc)) 187 #define META_BACK_CONN_CREATING(lc) LDAP_BACK_CONN_ISSET((lc), META_BACK_FCONN_CREATING) 188 #define META_BACK_CONN_CREATING_SET(lc) LDAP_BACK_CONN_SET((lc), META_BACK_FCONN_CREATING) 189 #define META_BACK_CONN_CREATING_CLEAR(lc) LDAP_BACK_CONN_CLEAR((lc), META_BACK_FCONN_CREATING) 190 #define META_BACK_CONN_CREATING_CPY(lc, mlc) LDAP_BACK_CONN_CPY((lc), META_BACK_FCONN_CREATING, (mlc)) 191 192 struct metainfo_t; 193 194 #define META_NOT_CANDIDATE ((ber_tag_t)0x0) 195 #define META_CANDIDATE ((ber_tag_t)0x1) 196 #define META_BINDING ((ber_tag_t)0x2) 197 #define META_RETRYING ((ber_tag_t)0x4) 198 199 typedef struct metasingleconn_t { 200 #define META_CND_ISSET(rs,f) ( ( (rs)->sr_tag & (f) ) == (f) ) 201 #define META_CND_SET(rs,f) ( (rs)->sr_tag |= (f) ) 202 #define META_CND_CLEAR(rs,f) ( (rs)->sr_tag &= ~(f) ) 203 204 #define META_CANDIDATE_RESET(rs) ( (rs)->sr_tag = 0 ) 205 #define META_IS_CANDIDATE(rs) META_CND_ISSET( (rs), META_CANDIDATE ) 206 #define META_CANDIDATE_SET(rs) META_CND_SET( (rs), META_CANDIDATE ) 207 #define META_CANDIDATE_CLEAR(rs) META_CND_CLEAR( (rs), META_CANDIDATE ) 208 #define META_IS_BINDING(rs) META_CND_ISSET( (rs), META_BINDING ) 209 #define META_BINDING_SET(rs) META_CND_SET( (rs), META_BINDING ) 210 #define META_BINDING_CLEAR(rs) META_CND_CLEAR( (rs), META_BINDING ) 211 #define META_IS_RETRYING(rs) META_CND_ISSET( (rs), META_RETRYING ) 212 #define META_RETRYING_SET(rs) META_CND_SET( (rs), META_RETRYING ) 213 #define META_RETRYING_CLEAR(rs) META_CND_CLEAR( (rs), META_RETRYING ) 214 215 LDAP *msc_ld; 216 time_t msc_time; 217 struct berval msc_bound_ndn; 218 struct berval msc_cred; 219 unsigned msc_mscflags; 220 /* NOTE: lc_lcflags is redefined to msc_mscflags to reuse the macros 221 * defined for back-ldap */ 222 #define lc_lcflags msc_mscflags 223 } metasingleconn_t; 224 225 typedef struct metaconn_t { 226 ldapconn_base_t lc_base; 227 #define mc_base lc_base 228 #define mc_conn mc_base.lcb_conn 229 #define mc_local_ndn mc_base.lcb_local_ndn 230 #define mc_refcnt mc_base.lcb_refcnt 231 #define mc_create_time mc_base.lcb_create_time 232 #define mc_time mc_base.lcb_time 233 234 LDAP_TAILQ_ENTRY(metaconn_t) mc_q; 235 236 /* NOTE: msc_mscflags is used to recycle the #define 237 * in metasingleconn_t */ 238 unsigned msc_mscflags; 239 240 /* 241 * means that the connection is bound; 242 * of course only one target actually is ... 243 */ 244 int mc_authz_target; 245 #define META_BOUND_NONE (-1) 246 #define META_BOUND_ALL (-2) 247 248 struct metainfo_t *mc_info; 249 250 /* supersedes the connection stuff */ 251 metasingleconn_t mc_conns[ 1 ]; 252 /* NOTE: mc_conns must be last, because 253 * the required number of conns is malloc'ed 254 * in one block with the metaconn_t structure */ 255 } metaconn_t; 256 257 typedef struct metatarget_t { 258 char *mt_uri; 259 ldap_pvt_thread_mutex_t mt_uri_mutex; 260 261 /* TODO: we might want to enable different strategies 262 * for different targets */ 263 LDAP_REBIND_PROC *mt_rebind_f; 264 LDAP_URLLIST_PROC *mt_urllist_f; 265 void *mt_urllist_p; 266 267 BerVarray mt_subtree_exclude; 268 int mt_scope; 269 270 struct berval mt_psuffix; /* pretty suffix */ 271 struct berval mt_nsuffix; /* normalized suffix */ 272 273 struct berval mt_binddn; 274 struct berval mt_bindpw; 275 276 slap_idassert_t mt_idassert; 277 #define mt_idassert_mode mt_idassert.si_mode 278 #define mt_idassert_authcID mt_idassert.si_bc.sb_authcId 279 #define mt_idassert_authcDN mt_idassert.si_bc.sb_binddn 280 #define mt_idassert_passwd mt_idassert.si_bc.sb_cred 281 #define mt_idassert_authzID mt_idassert.si_bc.sb_authzId 282 #define mt_idassert_authmethod mt_idassert.si_bc.sb_method 283 #define mt_idassert_sasl_mech mt_idassert.si_bc.sb_saslmech 284 #define mt_idassert_sasl_realm mt_idassert.si_bc.sb_realm 285 #define mt_idassert_secprops mt_idassert.si_bc.sb_secprops 286 #define mt_idassert_tls mt_idassert.si_bc.sb_tls 287 #define mt_idassert_flags mt_idassert.si_flags 288 #define mt_idassert_authz mt_idassert.si_authz 289 290 int mt_nretries; 291 #define META_RETRY_UNDEFINED (-2) 292 #define META_RETRY_FOREVER (-1) 293 #define META_RETRY_NEVER (0) 294 #define META_RETRY_DEFAULT (10) 295 296 struct ldaprwmap mt_rwmap; 297 298 sig_atomic_t mt_isquarantined; 299 slap_retry_info_t mt_quarantine; 300 ldap_pvt_thread_mutex_t mt_quarantine_mutex; 301 302 unsigned mt_flags; 303 #define META_BACK_TGT_ISSET(mt,f) ( ( (mt)->mt_flags & (f) ) == (f) ) 304 #define META_BACK_TGT_ISMASK(mt,m,f) ( ( (mt)->mt_flags & (m) ) == (f) ) 305 306 #define META_BACK_TGT_SAVECRED(mt) META_BACK_TGT_ISSET( (mt), LDAP_BACK_F_SAVECRED ) 307 308 #define META_BACK_TGT_USE_TLS(mt) META_BACK_TGT_ISSET( (mt), LDAP_BACK_F_USE_TLS ) 309 #define META_BACK_TGT_PROPAGATE_TLS(mt) META_BACK_TGT_ISSET( (mt), LDAP_BACK_F_PROPAGATE_TLS ) 310 #define META_BACK_TGT_TLS_CRITICAL(mt) META_BACK_TGT_ISSET( (mt), LDAP_BACK_F_TLS_CRITICAL ) 311 312 #define META_BACK_TGT_CHASE_REFERRALS(mt) META_BACK_TGT_ISSET( (mt), LDAP_BACK_F_CHASE_REFERRALS ) 313 314 #define META_BACK_TGT_T_F(mt) META_BACK_TGT_ISMASK( (mt), LDAP_BACK_F_T_F_MASK, LDAP_BACK_F_T_F ) 315 #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 ) 316 317 #define META_BACK_TGT_ABANDON(mt) META_BACK_TGT_ISMASK( (mt), LDAP_BACK_F_CANCEL_MASK, LDAP_BACK_F_CANCEL_ABANDON ) 318 #define META_BACK_TGT_IGNORE(mt) META_BACK_TGT_ISMASK( (mt), LDAP_BACK_F_CANCEL_MASK, LDAP_BACK_F_CANCEL_IGNORE ) 319 #define META_BACK_TGT_CANCEL(mt) META_BACK_TGT_ISMASK( (mt), LDAP_BACK_F_CANCEL_MASK, LDAP_BACK_F_CANCEL_EXOP ) 320 #define META_BACK_TGT_CANCEL_DISCOVER(mt) META_BACK_TGT_ISMASK( (mt), LDAP_BACK_F_CANCEL_MASK2, LDAP_BACK_F_CANCEL_EXOP_DISCOVER ) 321 #define META_BACK_TGT_QUARANTINE(mt) META_BACK_TGT_ISSET( (mt), LDAP_BACK_F_QUARANTINE ) 322 323 #ifdef SLAP_CONTROL_X_SESSION_TRACKING 324 #define META_BACK_TGT_ST_REQUEST(mt) META_BACK_TGT_ISSET( (mt), LDAP_BACK_F_ST_REQUEST ) 325 #define META_BACK_TGT_ST_RESPONSE(mt) META_BACK_TGT_ISSET( (mt), LDAP_BACK_F_ST_RESPONSE ) 326 #endif /* SLAP_CONTROL_X_SESSION_TRACKING */ 327 328 #define META_BACK_TGT_NOREFS(mt) META_BACK_TGT_ISSET( (mt), LDAP_BACK_F_NOREFS ) 329 #define META_BACK_TGT_NOUNDEFFILTER(mt) META_BACK_TGT_ISSET( (mt), LDAP_BACK_F_NOUNDEFFILTER ) 330 331 slap_mask_t mt_rep_flags; 332 333 int mt_version; 334 time_t mt_network_timeout; 335 struct timeval mt_bind_timeout; 336 #define META_BIND_TIMEOUT LDAP_BACK_RESULT_UTIMEOUT 337 time_t mt_timeout[ SLAP_OP_LAST ]; 338 } metatarget_t; 339 340 typedef struct metadncache_t { 341 ldap_pvt_thread_mutex_t mutex; 342 Avlnode *tree; 343 344 #define META_DNCACHE_DISABLED (0) 345 #define META_DNCACHE_FOREVER ((time_t)(-1)) 346 time_t ttl; /* seconds; 0: no cache, -1: no expiry */ 347 } metadncache_t; 348 349 typedef struct metacandidates_t { 350 int mc_ntargets; 351 SlapReply *mc_candidates; 352 } metacandidates_t; 353 354 /* 355 * Hook to allow mucking with metainfo_t/metatarget_t when quarantine is over 356 */ 357 typedef int (*meta_back_quarantine_f)( struct metainfo_t *, int target, void * ); 358 359 typedef struct metainfo_t { 360 int mi_ntargets; 361 int mi_defaulttarget; 362 #define META_DEFAULT_TARGET_NONE (-1) 363 int mi_nretries; 364 365 metatarget_t **mi_targets; 366 metacandidates_t *mi_candidates; 367 368 LDAP_REBIND_PROC *mi_rebind_f; 369 LDAP_URLLIST_PROC *mi_urllist_f; 370 371 metadncache_t mi_cache; 372 373 /* cached connections; 374 * special conns are in tailq rather than in tree */ 375 ldap_avl_info_t mi_conninfo; 376 struct { 377 int mic_num; 378 LDAP_TAILQ_HEAD(mc_conn_priv_q, metaconn_t) mic_priv; 379 } mi_conn_priv[ LDAP_BACK_PCONN_LAST ]; 380 int mi_conn_priv_max; 381 382 /* NOTE: quarantine uses the connection mutex */ 383 slap_retry_info_t mi_quarantine; 384 meta_back_quarantine_f mi_quarantine_f; 385 void *mi_quarantine_p; 386 387 unsigned mi_flags; 388 #define li_flags mi_flags 389 /* uses flags as defined in <back-ldap/back-ldap.h> */ 390 #define META_BACK_F_ONERR_STOP (0x01000000U) 391 #define META_BACK_F_ONERR_REPORT (0x02000000U) 392 #define META_BACK_F_ONERR_MASK (META_BACK_F_ONERR_STOP|META_BACK_F_ONERR_REPORT) 393 #define META_BACK_F_DEFER_ROOTDN_BIND (0x04000000U) 394 #define META_BACK_F_PROXYAUTHZ_ALWAYS (0x08000000U) /* users always proxyauthz */ 395 #define META_BACK_F_PROXYAUTHZ_ANON (0x10000000U) /* anonymous always proxyauthz */ 396 #define META_BACK_F_PROXYAUTHZ_NOANON (0x20000000U) /* anonymous remains anonymous */ 397 398 #define META_BACK_ONERR_STOP(mi) LDAP_BACK_ISSET( (mi), META_BACK_F_ONERR_STOP ) 399 #define META_BACK_ONERR_REPORT(mi) LDAP_BACK_ISSET( (mi), META_BACK_F_ONERR_REPORT ) 400 #define META_BACK_ONERR_CONTINUE(mi) ( !LDAP_BACK_ISSET( (mi), META_BACK_F_ONERR_MASK ) ) 401 402 #define META_BACK_DEFER_ROOTDN_BIND(mi) LDAP_BACK_ISSET( (mi), META_BACK_F_DEFER_ROOTDN_BIND ) 403 #define META_BACK_PROXYAUTHZ_ALWAYS(mi) LDAP_BACK_ISSET( (mi), META_BACK_F_PROXYAUTHZ_ALWAYS ) 404 #define META_BACK_PROXYAUTHZ_ANON(mi) LDAP_BACK_ISSET( (mi), META_BACK_F_PROXYAUTHZ_ANON ) 405 #define META_BACK_PROXYAUTHZ_NOANON(mi) LDAP_BACK_ISSET( (mi), META_BACK_F_PROXYAUTHZ_NOANON ) 406 407 #define META_BACK_QUARANTINE(mi) LDAP_BACK_ISSET( (mi), LDAP_BACK_F_QUARANTINE ) 408 409 int mi_version; 410 time_t mi_network_timeout; 411 time_t mi_conn_ttl; 412 time_t mi_idle_timeout; 413 struct timeval mi_bind_timeout; 414 time_t mi_timeout[ SLAP_OP_LAST ]; 415 416 ldap_extra_t *mi_ldap_extra; 417 418 } metainfo_t; 419 420 typedef enum meta_op_type { 421 META_OP_ALLOW_MULTIPLE = 0, 422 META_OP_REQUIRE_SINGLE, 423 META_OP_REQUIRE_ALL 424 } meta_op_type; 425 426 SlapReply * 427 meta_back_candidates_get( Operation *op ); 428 429 extern metaconn_t * 430 meta_back_getconn( 431 Operation *op, 432 SlapReply *rs, 433 int *candidate, 434 ldap_back_send_t sendok ); 435 436 extern void 437 meta_back_release_conn_lock( 438 metainfo_t *mi, 439 metaconn_t *mc, 440 int dolock ); 441 #define meta_back_release_conn(mi, mc) meta_back_release_conn_lock( (mi), (mc), 1 ) 442 443 extern int 444 meta_back_retry( 445 Operation *op, 446 SlapReply *rs, 447 metaconn_t **mcp, 448 int candidate, 449 ldap_back_send_t sendok ); 450 451 extern void 452 meta_back_conn_free( 453 void *v_mc ); 454 455 #if META_BACK_PRINT_CONNTREE > 0 456 extern void 457 meta_back_print_conntree( 458 metainfo_t *mi, 459 char *msg ); 460 #endif 461 462 extern int 463 meta_back_init_one_conn( 464 Operation *op, 465 SlapReply *rs, 466 metaconn_t *mc, 467 int candidate, 468 int ispriv, 469 ldap_back_send_t sendok, 470 int dolock ); 471 472 extern void 473 meta_back_quarantine( 474 Operation *op, 475 SlapReply *rs, 476 int candidate ); 477 478 extern int 479 meta_back_dobind( 480 Operation *op, 481 SlapReply *rs, 482 metaconn_t *mc, 483 ldap_back_send_t sendok ); 484 485 extern int 486 meta_back_single_dobind( 487 Operation *op, 488 SlapReply *rs, 489 metaconn_t **mcp, 490 int candidate, 491 ldap_back_send_t sendok, 492 int retries, 493 int dolock ); 494 495 extern int 496 meta_back_proxy_authz_cred( 497 metaconn_t *mc, 498 int candidate, 499 Operation *op, 500 SlapReply *rs, 501 ldap_back_send_t sendok, 502 struct berval *binddn, 503 struct berval *bindcred, 504 int *method ); 505 506 extern int 507 meta_back_cancel( 508 metaconn_t *mc, 509 Operation *op, 510 SlapReply *rs, 511 ber_int_t msgid, 512 int candidate, 513 ldap_back_send_t sendok ); 514 515 extern int 516 meta_back_op_result( 517 metaconn_t *mc, 518 Operation *op, 519 SlapReply *rs, 520 int candidate, 521 ber_int_t msgid, 522 time_t timeout, 523 ldap_back_send_t sendok ); 524 525 extern int 526 meta_back_controls_add( 527 Operation *op, 528 SlapReply *rs, 529 metaconn_t *mc, 530 int candidate, 531 LDAPControl ***pctrls ); 532 533 extern int 534 back_meta_LTX_init_module( 535 int argc, 536 char *argv[] ); 537 538 extern int 539 meta_back_conn_cmp( 540 const void *c1, 541 const void *c2 ); 542 543 extern int 544 meta_back_conndn_cmp( 545 const void *c1, 546 const void *c2 ); 547 548 extern int 549 meta_back_conndn_dup( 550 void *c1, 551 void *c2 ); 552 553 /* 554 * Candidate stuff 555 */ 556 extern int 557 meta_back_is_candidate( 558 metatarget_t *mt, 559 struct berval *ndn, 560 int scope ); 561 562 extern int 563 meta_back_select_unique_candidate( 564 metainfo_t *mi, 565 struct berval *ndn ); 566 567 extern int 568 meta_clear_unused_candidates( 569 Operation *op, 570 int candidate ); 571 572 extern int 573 meta_clear_one_candidate( 574 Operation *op, 575 metaconn_t *mc, 576 int candidate ); 577 578 /* 579 * Dn cache stuff (experimental) 580 */ 581 extern int 582 meta_dncache_cmp( 583 const void *c1, 584 const void *c2 ); 585 586 extern int 587 meta_dncache_dup( 588 void *c1, 589 void *c2 ); 590 591 #define META_TARGET_NONE (-1) 592 #define META_TARGET_MULTIPLE (-2) 593 extern int 594 meta_dncache_get_target( 595 metadncache_t *cache, 596 struct berval *ndn ); 597 598 extern int 599 meta_dncache_update_entry( 600 metadncache_t *cache, 601 struct berval *ndn, 602 int target ); 603 604 extern int 605 meta_dncache_delete_entry( 606 metadncache_t *cache, 607 struct berval *ndn ); 608 609 extern void 610 meta_dncache_free( void *entry ); 611 612 extern LDAP_REBIND_PROC meta_back_default_rebind; 613 extern LDAP_URLLIST_PROC meta_back_default_urllist; 614 615 LDAP_END_DECL 616 617 #endif /* SLAPD_META_H */ 618 619