1 /* syncprov.c - syncrepl provider */
2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
4 * Copyright 2004 The OpenLDAP Foundation.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted only as authorized by the OpenLDAP
11 * A copy of this license is available in the file LICENSE in the
12 * top-level directory of the distribution or, alternatively, at
13 * <http://www.OpenLDAP.org/license.html>.
16 * This work was initially developed by Howard Chu for inclusion in
22 #ifdef SLAPD_OVER_SYNCPROV
24 #include <ac/string.h>
28 /* A modify request on a particular entry */
29 typedef struct modinst {
30 struct modinst *mi_next;
34 typedef struct modtarget {
35 struct modinst *mt_mods;
36 struct modinst *mt_tail;
38 ldap_pvt_thread_mutex_t mt_mutex;
41 /* A queued result of a persistent search */
42 typedef struct syncres {
43 struct syncres *s_next;
52 /* Record of a persistent search */
53 typedef struct syncops {
54 struct syncops *s_next;
55 struct berval s_base; /* ndn of search base */
56 ID s_eid; /* entryID of search base */
57 Operation *s_op; /* search op */
60 struct berval s_filterstr;
61 int s_flags; /* search status */
62 int s_inuse; /* reference count */
63 struct syncres *s_res;
64 struct syncres *s_restail;
65 ldap_pvt_thread_mutex_t s_mutex;
70 /* A received sync control */
71 typedef struct sync_control {
72 struct sync_cookie sr_state;
76 /* o_sync_mode uses data bits of o_sync */
77 #define o_sync o_ctrlflag[sync_cid]
78 #define o_sync_mode o_ctrlflag[sync_cid]
80 #define SLAP_SYNC_NONE (LDAP_SYNC_NONE<<SLAP_CONTROL_SHIFT)
81 #define SLAP_SYNC_REFRESH (LDAP_SYNC_REFRESH_ONLY<<SLAP_CONTROL_SHIFT)
82 #define SLAP_SYNC_PERSIST (LDAP_SYNC_RESERVED<<SLAP_CONTROL_SHIFT)
83 #define SLAP_SYNC_REFRESH_AND_PERSIST (LDAP_SYNC_REFRESH_AND_PERSIST<<SLAP_CONTROL_SHIFT)
85 #define PS_IS_REFRESHING 0x01
87 /* Record of which searches matched at premodify step */
88 typedef struct syncmatches {
89 struct syncmatches *sm_next;
93 /* The main state for this overlay */
94 typedef struct syncprov_info_t {
96 struct berval si_ctxcsn; /* ldapsync context */
97 int si_gotcsn; /* is our ctxcsn up to date? */
98 Avlnode *si_mods; /* entries being modified */
99 ldap_pvt_thread_mutex_t si_csn_mutex;
100 ldap_pvt_thread_mutex_t si_ops_mutex;
101 ldap_pvt_thread_mutex_t si_mods_mutex;
102 char si_ctxcsnbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
105 typedef struct opcookie {
107 syncmatches *smatches;
108 struct berval sdn; /* DN of entry, for deletes */
110 struct berval suuid; /* UUID of entry */
111 struct berval sctxcsn;
112 int sreference; /* Is the entry a reference? */
115 typedef struct fbase_cookie {
116 struct berval *fdn; /* DN of a modified entry, for scope testing */
117 syncops *fss; /* persistent search we're testing against */
118 int fbase; /* if TRUE we found the search base and it's still valid */
119 int fscope; /* if TRUE then fdn is within the psearch scope */
122 static AttributeName csn_anlist[2];
123 static AttributeName uuid_anlist[2];
125 /* Build a LDAPsync intermediate state control */
131 int entry_sync_state,
135 struct berval *cookie)
140 const char *text = NULL;
142 BerElementBuffer berbuf;
143 BerElement *ber = (BerElement *)&berbuf;
145 struct berval entryuuid_bv = BER_BVNULL;
147 ber_init2( ber, 0, LBER_USE_DER );
148 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
150 ctrls[num_ctrls] = slap_sl_malloc ( sizeof ( LDAPControl ), op->o_tmpmemctx );
152 for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
153 AttributeDescription *desc = a->a_desc;
154 if ( desc == slap_schema.si_ad_entryUUID ) {
155 entryuuid_bv = a->a_nvals[0];
160 if ( send_cookie && cookie ) {
161 ber_printf( ber, "{eOON}",
162 entry_sync_state, &entryuuid_bv, cookie );
164 ber_printf( ber, "{eON}",
165 entry_sync_state, &entryuuid_bv );
168 ctrls[num_ctrls]->ldctl_oid = LDAP_CONTROL_SYNC_STATE;
169 ctrls[num_ctrls]->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
170 ret = ber_flatten2( ber, &ctrls[num_ctrls]->ldctl_value, 1 );
175 Debug( LDAP_DEBUG_TRACE,
176 "slap_build_sync_ctrl: ber_flatten2 failed\n",
178 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
185 /* Build a LDAPsync final state control */
193 struct berval *cookie,
197 BerElementBuffer berbuf;
198 BerElement *ber = (BerElement *)&berbuf;
200 ber_init2( ber, NULL, LBER_USE_DER );
201 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
203 ctrls[num_ctrls] = ch_malloc ( sizeof ( LDAPControl ) );
205 ber_printf( ber, "{" );
206 if ( send_cookie && cookie ) {
207 ber_printf( ber, "O", cookie );
209 if ( refreshDeletes == LDAP_SYNC_REFRESH_DELETES ) {
210 ber_printf( ber, "b", refreshDeletes );
212 ber_printf( ber, "N}" );
214 ctrls[num_ctrls]->ldctl_oid = LDAP_CONTROL_SYNC_DONE;
215 ctrls[num_ctrls]->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
216 ret = ber_flatten2( ber, &ctrls[num_ctrls]->ldctl_value, 1 );
221 Debug( LDAP_DEBUG_TRACE,
222 "syncprov_done_ctrl: ber_flatten2 failed\n",
224 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
232 /* Generate state based on session log - not implemented yet */
234 syncprov_state_ctrl_from_slog(
237 struct slog_entry *slog_e,
238 int entry_sync_state,
242 struct berval *cookie)
247 const char *text = NULL;
249 BerElementBuffer berbuf;
250 BerElement *ber = (BerElement *)&berbuf;
252 struct berval entryuuid_bv = BER_BVNULL;
254 ber_init2( ber, NULL, LBER_USE_DER );
255 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
257 ctrls[num_ctrls] = ch_malloc ( sizeof ( LDAPControl ) );
259 entryuuid_bv = slog_e->sl_uuid;
261 if ( send_cookie && cookie ) {
262 ber_printf( ber, "{eOON}",
263 entry_sync_state, &entryuuid_bv, cookie );
265 ber_printf( ber, "{eON}",
266 entry_sync_state, &entryuuid_bv );
269 ctrls[num_ctrls]->ldctl_oid = LDAP_CONTROL_SYNC_STATE;
270 ctrls[num_ctrls]->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
271 ret = ber_flatten2( ber, &ctrls[num_ctrls]->ldctl_value, 1 );
276 Debug( LDAP_DEBUG_TRACE,
277 "slap_build_sync_ctrl: ber_flatten2 failed\n",
279 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
292 struct berval *cookie,
297 BerElementBuffer berbuf;
298 BerElement *ber = (BerElement *)&berbuf;
299 struct berval rspdata;
303 ber_init2( ber, NULL, LBER_USE_DER );
304 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
308 case LDAP_TAG_SYNC_NEW_COOKIE:
309 ber_printf( ber, "tO", type, cookie );
311 case LDAP_TAG_SYNC_REFRESH_DELETE:
312 case LDAP_TAG_SYNC_REFRESH_PRESENT:
313 ber_printf( ber, "t{", type );
315 ber_printf( ber, "O", cookie );
317 if ( refreshDone == 0 ) {
318 ber_printf( ber, "b", refreshDone );
320 ber_printf( ber, "N}" );
322 case LDAP_TAG_SYNC_ID_SET:
323 ber_printf( ber, "t{", type );
325 ber_printf( ber, "O", cookie );
327 if ( refreshDeletes == 1 ) {
328 ber_printf( ber, "b", refreshDeletes );
330 ber_printf( ber, "[W]", syncUUIDs );
331 ber_printf( ber, "N}" );
334 Debug( LDAP_DEBUG_TRACE,
335 "syncprov_sendinfo: invalid syncinfo type (%d)\n",
341 ret = ber_flatten2( ber, &rspdata, 0 );
344 Debug( LDAP_DEBUG_TRACE,
345 "syncprov_sendinfo: ber_flatten2 failed\n",
347 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
351 rs->sr_rspoid = LDAP_SYNC_INFO;
352 rs->sr_rspdata = &rspdata;
353 send_ldap_intermediate( op, rs );
354 rs->sr_rspdata = NULL;
360 /* Find a modtarget in an AVL tree */
362 sp_avl_cmp( const void *c1, const void *c2 )
364 const modtarget *m1, *m2;
368 rc = m1->mt_op->o_req_ndn.bv_len - m2->mt_op->o_req_ndn.bv_len;
371 return ber_bvcmp( &m1->mt_op->o_req_ndn, &m2->mt_op->o_req_ndn );
374 /* syncprov_findbase:
375 * finds the true DN of the base of a search (with alias dereferencing) and
376 * checks to make sure the base entry doesn't get replaced with a different
377 * entry (e.g., swapping trees via ModDN, or retargeting an alias). If a
378 * change is detected, any persistent search on this base must be terminated /
380 * On the first call, we just save the DN and entryID. On subsequent calls
381 * we compare the DN and entryID with the saved values.
384 findbase_cb( Operation *op, SlapReply *rs )
386 slap_callback *sc = op->o_callback;
388 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
389 fbase_cookie *fc = sc->sc_private;
391 /* If no entryID, we're looking for the first time.
392 * Just store whatever we got.
394 if ( fc->fss->s_eid == NOID ) {
396 fc->fss->s_eid = rs->sr_entry->e_id;
397 ber_dupbv( &fc->fss->s_base, &rs->sr_entry->e_nname );
399 } else if ( rs->sr_entry->e_id == fc->fss->s_eid &&
400 dn_match( &rs->sr_entry->e_nname, &fc->fss->s_base )) {
402 /* OK, the DN is the same and the entryID is the same. Now
403 * see if the fdn resides in the scope.
406 switch ( fc->fss->s_op->ors_scope ) {
407 case LDAP_SCOPE_BASE:
408 fc->fscope = dn_match( fc->fdn, &rs->sr_entry->e_nname );
410 case LDAP_SCOPE_ONELEVEL: {
412 dnParent( fc->fdn, &pdn );
413 fc->fscope = dn_match( &pdn, &rs->sr_entry->e_nname );
415 case LDAP_SCOPE_SUBTREE:
416 fc->fscope = dnIsSuffix( fc->fdn, &rs->sr_entry->e_nname );
418 #ifdef LDAP_SCOPE_SUBORDINATE
419 case LDAP_SCOPE_SUBORDINATE:
420 fc->fscope = dnIsSuffix( fc->fdn, &rs->sr_entry->e_nname ) &&
421 !dn_match( fc->fdn, &rs->sr_entry->e_nname );
431 syncprov_findbase( Operation *op, fbase_cookie *fc )
433 opcookie *opc = op->o_callback->sc_private;
434 slap_overinst *on = opc->son;
435 syncprov_info_t *si = on->on_bi.bi_private;
437 slap_callback cb = {0};
439 SlapReply frs = { REP_RESULT };
444 cb.sc_response = findbase_cb;
447 fop.o_sync_mode &= SLAP_CONTROL_MASK; /* turn off sync mode */
448 fop.o_callback = &cb;
449 fop.o_tag = LDAP_REQ_SEARCH;
450 fop.ors_scope = LDAP_SCOPE_BASE;
451 fop.ors_deref = fc->fss->s_op->ors_deref;
453 fop.ors_tlimit = SLAP_NO_LIMIT;
454 fop.ors_attrs = slap_anlist_no_attrs;
455 fop.ors_attrsonly = 1;
456 fop.ors_filter = fc->fss->s_op->ors_filter;
457 fop.ors_filterstr = fc->fss->s_op->ors_filterstr;
459 fop.o_req_ndn = fc->fss->s_op->o_req_ndn;
461 fop.o_bd->bd_info = on->on_info->oi_orig;
462 rc = fop.o_bd->be_search( &fop, &frs );
463 fop.o_bd->bd_info = (BackendInfo *)on;
465 if ( fc->fbase ) return LDAP_SUCCESS;
467 /* If entryID has changed, then the base of this search has
468 * changed. Invalidate the psearch.
470 return LDAP_NO_SUCH_OBJECT;
474 * This function has three different purposes, but they all use a search
475 * that filters on entryCSN so they're combined here.
476 * 1: when the current contextCSN is unknown (i.e., at server start time)
477 * and a syncrepl search has arrived with a cookie, we search for all entries
478 * with CSN >= the cookie CSN, and store the maximum as our contextCSN. Also,
479 * we expect to find the cookie CSN in the search results, and note if we did
480 * or not. If not, we assume the cookie is stale. (This may be too restrictive,
483 * 2: when the current contextCSN is known and we have a sync cookie, we search
484 * for one entry with CSN <= the cookie CSN. (Used to search for =.) If an
485 * entry is found, the cookie CSN is valid, otherwise it is stale. Case 1 is
486 * considered a special case of case 2, and both are generally called the
489 * 3: during a refresh phase, we search for all entries with CSN <= the cookie
490 * CSN, and generate Present records for them. We always collect this result
491 * in SyncID sets, even if there's only one match.
494 #define FIND_PRESENT 2
496 typedef struct fcsn_cookie {
497 struct berval maxcsn;
502 findcsn_cb( Operation *op, SlapReply *rs )
504 slap_callback *sc = op->o_callback;
506 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
507 /* If the private pointer is set, it points to an fcsn_cookie
508 * and we want to record the maxcsn and match state.
510 if ( sc->sc_private ) {
512 fcsn_cookie *fc = sc->sc_private;
513 sync_control *srs = op->o_controls[sync_cid];
514 Attribute *a = attr_find(rs->sr_entry->e_attrs,
515 slap_schema.si_ad_entryCSN );
516 i = ber_bvcmp( &a->a_vals[0], srs->sr_state.ctxcsn );
517 if ( i == 0 ) fc->gotmatch = 1;
518 i = ber_bvcmp( &a->a_vals[0], &fc->maxcsn );
520 fc->maxcsn.bv_len = a->a_vals[0].bv_len;
521 strcpy(fc->maxcsn.bv_val, a->a_vals[0].bv_val );
524 /* Otherwise, if the private pointer is not set, we just
525 * want to know if any entry matched the filter.
527 sc->sc_private = (void *)1;
533 /* Build a list of entryUUIDs for sending in a SyncID set */
535 typedef struct fpres_cookie {
541 findpres_cb( Operation *op, SlapReply *rs )
543 slap_callback *sc = op->o_callback;
544 fpres_cookie *pc = sc->sc_private;
545 int ret = SLAP_CB_CONTINUE;
547 if ( rs->sr_type == REP_SEARCH ) {
548 ret = slap_build_syncUUID_set( op, &pc->uuids, rs->sr_entry );
552 if ( pc->num == SLAP_SYNCUUID_SET_SIZE ) {
553 ret = syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET, NULL,
555 ber_bvarray_free_x( pc->uuids, op->o_tmpmemctx );
562 } else if ( rs->sr_type == REP_RESULT ) {
565 ret = syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET, NULL,
567 ber_bvarray_free_x( pc->uuids, op->o_tmpmemctx );
577 syncprov_findcsn( Operation *op, int mode )
579 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
580 syncprov_info_t *si = on->on_bi.bi_private;
582 slap_callback cb = {0};
584 SlapReply frs = { REP_RESULT };
585 char buf[LDAP_LUTIL_CSNSTR_BUFSIZE + STRLENOF("(entryCSN<=)")];
586 char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
589 AttributeAssertion eq;
592 fpres_cookie pcookie;
594 sync_control *srs = op->o_controls[sync_cid];
596 if ( srs->sr_state.ctxcsn->bv_len >= LDAP_LUTIL_CSNSTR_BUFSIZE ) {
601 fop.o_sync_mode &= SLAP_CONTROL_MASK; /* turn off sync_mode */
604 if ( mode == FIND_CSN ) {
605 if ( !si->si_gotcsn ) {
606 /* If we don't know the current ctxcsn, find it */
607 ldap_pvt_thread_mutex_lock( &si->si_csn_mutex );
610 if ( !si->si_gotcsn ) {
611 cf.f_choice = LDAP_FILTER_GE;
612 fop.ors_attrsonly = 0;
613 fop.ors_attrs = csn_anlist;
614 fop.ors_slimit = SLAP_NO_LIMIT;
615 cb.sc_private = &fcookie;
616 fcookie.maxcsn.bv_val = cbuf;
617 fcookie.maxcsn.bv_len = 0;
618 fcookie.gotmatch = 0;
619 fbuf.bv_len = sprintf( buf, "(entryCSN>=%s)", srs->sr_state.ctxcsn->bv_val );
622 ldap_pvt_thread_mutex_unlock( &si->si_csn_mutex );
625 cf.f_choice = LDAP_FILTER_LE;
626 fop.ors_attrsonly = 1;
627 fop.ors_attrs = slap_anlist_no_attrs;
629 cb.sc_private = NULL;
630 fbuf.bv_len = sprintf( buf, "(entryCSN<=%s)", srs->sr_state.ctxcsn->bv_val );
632 cb.sc_response = findcsn_cb;
634 } else if ( mode == FIND_PRESENT ) {
635 cf.f_choice = LDAP_FILTER_LE;
636 fop.ors_attrsonly = 0;
637 fop.ors_attrs = uuid_anlist;
638 fop.ors_slimit = SLAP_NO_LIMIT;
639 /* We want pure entries, not referrals */
640 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
641 cb.sc_private = &pcookie;
642 cb.sc_response = findpres_cb;
644 pcookie.uuids = NULL;
645 fbuf.bv_len = sprintf( buf, "(entryCSN<=%s)", srs->sr_state.ctxcsn->bv_val );
648 cf.f_av_desc = slap_schema.si_ad_entryCSN;
649 cf.f_av_value = *srs->sr_state.ctxcsn;
652 fop.o_callback = &cb;
653 fop.ors_tlimit = SLAP_NO_LIMIT;
654 fop.ors_filter = &cf;
655 fop.ors_filterstr = fbuf;
657 fop.o_bd->bd_info = on->on_info->oi_orig;
658 rc = fop.o_bd->be_search( &fop, &frs );
659 fop.o_bd->bd_info = (BackendInfo *)on;
661 if ( mode == FIND_CSN ) {
662 if ( !si->si_gotcsn ) {
663 strcpy(si->si_ctxcsnbuf, fcookie.maxcsn.bv_val);
664 si->si_ctxcsn.bv_len = fcookie.maxcsn.bv_len;
666 ldap_pvt_thread_mutex_unlock( &si->si_csn_mutex );
667 if ( fcookie.gotmatch ) return LDAP_SUCCESS;
670 if ( cb.sc_private ) return LDAP_SUCCESS;
672 } else if ( mode == FIND_PRESENT ) {
676 /* If matching CSN was not found, invalidate the context. */
677 return LDAP_NO_SUCH_OBJECT;
680 /* Queue a persistent search response if still in Refresh stage */
682 syncprov_qresp( opcookie *opc, syncops *so, int mode )
686 sr = ch_malloc(sizeof(syncres) + opc->suuid.bv_len + 1 +
687 opc->sdn.bv_len + 1 + opc->sndn.bv_len + 1 + opc->sctxcsn.bv_len + 1 );
689 sr->s_dn.bv_val = (char *)(sr + 1);
691 sr->s_isreference = opc->sreference;
692 sr->s_ndn.bv_val = lutil_strcopy( sr->s_dn.bv_val, opc->sdn.bv_val );
693 *(sr->s_ndn.bv_val++) = '\0';
694 sr->s_uuid.bv_val = lutil_strcopy( sr->s_ndn.bv_val, opc->sndn.bv_val );
695 *(sr->s_uuid.bv_val++) = '\0';
696 sr->s_csn.bv_val = lutil_strcopy( sr->s_uuid.bv_val, opc->suuid.bv_val );
701 so->s_restail->s_next = sr;
704 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
708 /* Send a persistent search response */
710 syncprov_sendresp( Operation *op, opcookie *opc, syncops *so, Entry *e, int mode, int queue )
712 slap_overinst *on = opc->son;
713 syncprov_info_t *si = on->on_bi.bi_private;
715 SlapReply rs = { REP_SEARCH };
716 LDAPControl *ctrls[2];
717 struct berval cookie;
719 Attribute a_uuid = {0};
720 Operation sop = *so->s_op;
725 sop.o_tmpmemctx = op->o_tmpmemctx;
727 sop.o_controls = op->o_controls;
729 if ( queue && (so->s_flags & PS_IS_REFRESHING) ) {
730 ldap_pvt_thread_mutex_lock( &so->s_mutex );
731 if ( so->s_flags & PS_IS_REFRESHING )
732 return syncprov_qresp( opc, so, mode );
733 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
737 slap_compose_sync_cookie( op, &cookie, &opc->sctxcsn,
738 so->s_sid, so->s_rid );
740 e_uuid.e_attrs = &a_uuid;
741 a_uuid.a_desc = slap_schema.si_ad_entryUUID;
742 a_uuid.a_nvals = &opc->suuid;
743 rs.sr_err = syncprov_state_ctrl( &sop, &rs, &e_uuid,
744 mode, ctrls, 0, 1, &cookie );
750 if ( opc->sreference ) {
751 rs.sr_ref = get_entry_referrals( &sop, e );
752 send_search_reference( &sop, &rs );
753 ber_bvarray_free( rs.sr_ref );
757 case LDAP_SYNC_MODIFY:
758 rs.sr_attrs = sop.ors_attrs;
759 send_search_entry( &sop, &rs );
761 case LDAP_SYNC_DELETE:
762 e_uuid.e_attrs = NULL;
763 e_uuid.e_name = opc->sdn;
764 e_uuid.e_nname = opc->sndn;
765 rs.sr_entry = &e_uuid;
766 if ( opc->sreference ) {
771 send_search_reference( &sop, &rs );
773 send_search_entry( &sop, &rs );
779 free( rs.sr_ctrls[0] );
784 syncprov_free_syncop( syncops *so )
786 syncres *sr, *srnext;
788 ldap_pvt_thread_mutex_lock( &so->s_mutex );
790 if ( so->s_inuse > 0 ) {
791 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
794 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
795 filter_free( so->s_op->ors_filter );
797 ch_free( so->s_base.bv_val );
798 for ( sr=so->s_res; sr; sr=srnext ) {
802 ldap_pvt_thread_mutex_destroy( &so->s_mutex );
807 syncprov_drop_psearch( syncops *so )
809 ldap_pvt_thread_mutex_lock( &so->s_op->o_conn->c_mutex );
810 so->s_op->o_conn->c_n_ops_executing--;
811 so->s_op->o_conn->c_n_ops_completed++;
812 ldap_pvt_thread_mutex_unlock( &so->s_op->o_conn->c_mutex );
813 syncprov_free_syncop( so );
817 syncprov_op_abandon( Operation *op, SlapReply *rs )
819 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
820 syncprov_info_t *si = on->on_bi.bi_private;
821 syncops *so, *soprev;
823 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
824 for ( so=si->si_ops, soprev = (syncops *)&si->si_ops; so;
825 soprev=so, so=so->s_next ) {
826 if ( so->s_op->o_connid == op->o_connid &&
827 so->s_op->o_msgid == op->orn_msgid ) {
828 so->s_op->o_abandon = 1;
829 soprev->s_next = so->s_next;
833 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
835 /* Is this really a Cancel exop? */
836 if ( op->o_tag != LDAP_REQ_ABANDON ) {
837 rs->sr_err = LDAP_CANCELLED;
838 send_ldap_result( so->s_op, rs );
840 syncprov_drop_psearch( so );
842 return SLAP_CB_CONTINUE;
845 /* Find which persistent searches are affected by this operation */
847 syncprov_matchops( Operation *op, opcookie *opc, int saveit )
849 slap_overinst *on = opc->son;
850 syncprov_info_t *si = on->on_bi.bi_private;
853 syncops *ss, *sprev, *snext;
859 fc.fdn = &op->o_req_ndn;
861 if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
863 if ( op->orr_nnewSup ) pdn = *op->orr_nnewSup;
864 else dnParent( fc.fdn, &pdn );
865 build_new_dn( &newdn, &pdn, &op->orr_nnewrdn, op->o_tmpmemctx );
868 if ( op->o_tag != LDAP_REQ_ADD ) {
869 op->o_bd->bd_info = (BackendInfo *)on->on_info;
870 rc = be_entry_get_rw( op, fc.fdn, NULL, NULL, 0, &e );
871 op->o_bd->bd_info = (BackendInfo *)on;
878 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
879 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
880 opc->sreference = is_entry_referral( e );
882 if ( saveit || op->o_tag == LDAP_REQ_ADD ) {
883 a = attr_find( e->e_attrs, slap_schema.si_ad_entryUUID );
885 ber_dupbv_x( &opc->suuid, &a->a_nvals[0], op->o_tmpmemctx );
888 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
889 for (ss = si->si_ops, sprev = (syncops *)&si->si_ops; ss;
890 sprev = ss, ss=snext)
901 /* If the base of the search is missing, signal a refresh */
902 rc = syncprov_findbase( op, &fc );
903 if ( rc != LDAP_SUCCESS ) {
904 SlapReply rs = {REP_RESULT};
905 send_ldap_error( ss->s_op, &rs, LDAP_SYNC_REFRESH_REQUIRED,
906 "search base has changed" );
907 sprev->s_next = snext;
908 syncprov_drop_psearch( ss );
912 /* If we're sending results now, look for this op in old matches */
915 for ( sm=opc->smatches, old=(syncmatches *)&opc->smatches; sm;
916 old=sm, sm=sm->sm_next ) {
917 if ( sm->sm_op == ss ) {
919 old->sm_next = sm->sm_next;
920 op->o_tmpfree( sm, op->o_tmpmemctx );
926 /* check if current o_req_dn is in scope and matches filter */
927 if ( fc.fscope && test_filter( op, e, ss->s_op->ors_filter ) ==
928 LDAP_COMPARE_TRUE ) {
930 sm = op->o_tmpalloc( sizeof(syncmatches), op->o_tmpmemctx );
931 sm->sm_next = opc->smatches;
936 /* if found send UPDATE else send ADD */
937 syncprov_sendresp( op, opc, ss, e,
938 found ? LDAP_SYNC_MODIFY : LDAP_SYNC_ADD, 1 );
940 } else if ( !saveit && found ) {
942 syncprov_sendresp( op, opc, ss, NULL, LDAP_SYNC_DELETE, 1 );
945 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
946 if ( op->o_tag != LDAP_REQ_ADD ) {
947 op->o_bd->bd_info = (BackendInfo *)on->on_info;
948 be_entry_release_r( op, e );
949 op->o_bd->bd_info = (BackendInfo *)on;
954 syncprov_op_cleanup( Operation *op, SlapReply *rs )
956 slap_callback *cb = op->o_callback;
957 opcookie *opc = cb->sc_private;
958 slap_overinst *on = opc->son;
959 syncprov_info_t *si = on->on_bi.bi_private;
960 syncmatches *sm, *snext;
961 modtarget *mt, mtdummy;
963 for (sm = opc->smatches; sm; sm=snext) {
965 syncprov_free_syncop( sm->sm_op );
966 op->o_tmpfree( sm, op->o_tmpmemctx );
969 /* Remove op from lock table */
971 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
972 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
974 modinst *mi = mt->mt_mods;
976 /* If there are more, promote the next one */
977 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
979 mt->mt_mods = mi->mi_next;
980 mt->mt_op = mt->mt_mods->mi_op;
981 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
983 avl_delete( &si->si_mods, mt, sp_avl_cmp );
984 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
985 ldap_pvt_thread_mutex_destroy( &mt->mt_mutex );
989 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
990 op->o_callback = cb->sc_next;
991 op->o_tmpfree(cb, op->o_tmpmemctx);
995 syncprov_op_response( Operation *op, SlapReply *rs )
997 opcookie *opc = op->o_callback->sc_private;
998 slap_overinst *on = opc->son;
999 syncprov_info_t *si = on->on_bi.bi_private;
1002 if ( rs->sr_err == LDAP_SUCCESS )
1004 struct berval maxcsn;
1005 char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
1007 /* Update our context CSN */
1009 ldap_pvt_thread_mutex_lock( &si->si_csn_mutex );
1010 slap_get_commit_csn( op, &maxcsn );
1011 if ( maxcsn.bv_val ) {
1012 strcpy( cbuf, maxcsn.bv_val );
1013 if ( ber_bvcmp( &maxcsn, &si->si_ctxcsn ) > 0 ) {
1014 strcpy( si->si_ctxcsnbuf, cbuf );
1015 si->si_ctxcsn.bv_len = maxcsn.bv_len;
1019 ldap_pvt_thread_mutex_unlock( &si->si_csn_mutex );
1021 opc->sctxcsn.bv_len = maxcsn.bv_len;
1022 opc->sctxcsn.bv_val = cbuf;
1024 /* Handle any persistent searches */
1028 case LDAP_REQ_MODIFY:
1029 case LDAP_REQ_MODRDN:
1030 case LDAP_REQ_EXTENDED:
1031 syncprov_matchops( op, opc, 0 );
1033 case LDAP_REQ_DELETE:
1034 /* for each match in opc->smatches:
1037 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1038 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1039 if ( sm->sm_op->s_op->o_abandon )
1041 syncprov_sendresp( op, opc, sm->sm_op, NULL,
1042 LDAP_SYNC_DELETE, 1 );
1044 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1050 return SLAP_CB_CONTINUE;
1054 /* We don't use a subentry to store the context CSN any more. But
1055 * we ought to expose the current context CSN as an operational attribute
1056 * somewhere, like on the suffix entry.
1059 syncprov_op_compare( Operation *op, SlapReply *rs )
1061 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1062 syncprov_info_t *si = on->on_bi.bi_private;
1063 int rc = SLAP_CB_CONTINUE;
1065 if ( dn_match( &op->o_req_ndn, &si->si_e->e_nname ) )
1069 ldap_pvt_thread_mutex_lock( &si->si_e_mutex );
1071 if ( get_assert( op ) &&
1072 ( test_filter( op, si->si_e, get_assertion( op ) ) != LDAP_COMPARE_TRUE ) )
1074 rs->sr_err = LDAP_ASSERTION_FAILED;
1075 goto return_results;
1078 rs->sr_err = access_allowed( op, si->si_e, op->oq_compare.rs_ava->aa_desc,
1079 &op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL );
1080 if ( ! rs->sr_err ) {
1081 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1082 goto return_results;
1085 rs->sr_err = LDAP_NO_SUCH_ATTRIBUTE;
1087 for ( a = attr_find( si->si_e->e_attrs, op->oq_compare.rs_ava->aa_desc );
1089 a = attr_find( a->a_next, op->oq_compare.rs_ava->aa_desc ) )
1091 rs->sr_err = LDAP_COMPARE_FALSE;
1093 if ( value_find_ex( op->oq_compare.rs_ava->aa_desc,
1094 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
1095 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
1096 a->a_nvals, &op->oq_compare.rs_ava->aa_value, op->o_tmpmemctx ) == 0 )
1098 rs->sr_err = LDAP_COMPARE_TRUE;
1105 ldap_pvt_thread_mutex_unlock( &si->si_e_mutex );
1107 send_ldap_result( op, rs );
1109 if( rs->sr_err == LDAP_COMPARE_FALSE || rs->sr_err == LDAP_COMPARE_TRUE ) {
1110 rs->sr_err = LDAP_SUCCESS;
1115 return SLAP_CB_CONTINUE;
1120 syncprov_op_mod( Operation *op, SlapReply *rs )
1122 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1123 syncprov_info_t *si = on->on_bi.bi_private;
1125 slap_callback *cb = op->o_tmpcalloc(1, sizeof(slap_callback)+
1127 (si->si_ops ? sizeof(modinst) : 0 ),
1129 opcookie *opc = (opcookie *)(cb+1);
1131 cb->sc_response = syncprov_op_response;
1132 cb->sc_cleanup = syncprov_op_cleanup;
1133 cb->sc_private = opc;
1134 cb->sc_next = op->o_callback;
1135 op->o_callback = cb;
1137 /* If there are active persistent searches, lock this operation.
1138 * See seqmod.c for the locking logic on its own.
1141 modtarget *mt, mtdummy;
1144 mi = (modinst *)(opc+1);
1147 /* See if we're already modifying this entry... */
1149 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1150 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
1152 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1153 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1154 mt->mt_tail->mi_next = mi;
1156 /* wait for this op to get to head of list */
1157 while ( mt->mt_mods != mi ) {
1158 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1159 ldap_pvt_thread_yield();
1160 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1163 /* Record that we're modifying this entry now */
1164 mt = malloc( sizeof(modtarget) );
1167 mt->mt_op = mi->mi_op;
1168 ldap_pvt_thread_mutex_init( &mt->mt_mutex );
1169 avl_insert( &si->si_mods, mt, sp_avl_cmp, avl_dup_error );
1170 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1173 if ( op->o_tag != LDAP_REQ_ADD )
1174 syncprov_matchops( op, opc, 1 );
1177 return SLAP_CB_CONTINUE;
1181 syncprov_op_extended( Operation *op, SlapReply *rs )
1183 if ( exop_is_write( op ))
1184 return syncprov_op_mod( op, rs );
1186 return SLAP_CB_CONTINUE;
1189 typedef struct searchstate {
1190 slap_overinst *ss_on;
1195 syncprov_search_cleanup( Operation *op, SlapReply *rs )
1197 searchstate *ss = op->o_callback->sc_private;
1198 if ( rs->sr_ctrls ) {
1199 free( rs->sr_ctrls[0] );
1200 op->o_tmpfree( rs->sr_ctrls, op->o_tmpmemctx );
1206 syncprov_detach_op( Operation *op, syncops *so )
1213 /* count the search attrs */
1214 for (i=0; op->ors_attrs && op->ors_attrs[i].an_name.bv_val; i++) {
1215 alen += op->ors_attrs[i].an_name.bv_len + 1;
1217 /* Make a new copy of the operation */
1218 size = sizeof(Operation) + sizeof(Opheader) +
1219 (i ? ( (i+1) * sizeof(AttributeName) + alen) : 0) +
1220 op->o_req_dn.bv_len + 1 +
1221 op->o_req_ndn.bv_len + 1 +
1222 op->o_ndn.bv_len + 1 +
1223 so->s_filterstr.bv_len + 1;
1224 op2 = (Operation *)ch_malloc( size );
1226 op2->o_hdr = (Opheader *)(op2+1);
1227 *op2->o_hdr = *op->o_hdr;
1229 op2->ors_attrs = (AttributeName *)(op2->o_hdr + 1);
1230 ptr = (char *)(op2->ors_attrs+i+1);
1231 for (i=0; op->ors_attrs[i].an_name.bv_val; i++) {
1232 op2->ors_attrs[i] = op->ors_attrs[i];
1233 op2->ors_attrs[i].an_name.bv_val = ptr;
1234 ptr = lutil_strcopy( ptr, op->ors_attrs[i].an_name.bv_val ) + 1;
1236 op2->ors_attrs[i].an_name.bv_val = NULL;
1237 op2->ors_attrs[i].an_name.bv_len = 0;
1239 ptr = (char *)(op2->o_hdr + 1);
1241 op2->o_ndn.bv_val = ptr;
1242 ptr = lutil_strcopy(ptr, op->o_ndn.bv_val) + 1;
1243 op2->o_dn = op2->o_ndn;
1244 op2->o_req_dn.bv_val = ptr;
1245 ptr = lutil_strcopy(ptr, op->o_req_dn.bv_val) + 1;
1246 op2->o_req_ndn.bv_val = ptr;
1247 ptr = lutil_strcopy(ptr, op->o_req_ndn.bv_val) + 1;
1248 op2->ors_filterstr.bv_val = ptr;
1249 strcpy( ptr, so->s_filterstr.bv_val );
1250 op2->ors_filterstr.bv_len = so->s_filterstr.bv_len;
1251 op2->ors_filter = str2filter( ptr );
1252 op2->o_controls = NULL;
1253 op2->o_callback = NULL;
1256 /* Increment number of ops so that idletimeout ignores us */
1257 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
1258 op->o_conn->c_n_ops_executing++;
1259 op->o_conn->c_n_ops_completed--;
1260 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
1264 syncprov_search_response( Operation *op, SlapReply *rs )
1266 searchstate *ss = op->o_callback->sc_private;
1267 slap_overinst *on = ss->ss_on;
1268 syncprov_info_t *si = on->on_bi.bi_private;
1269 sync_control *srs = op->o_controls[sync_cid];
1271 if ( rs->sr_type == REP_SEARCH || rs->sr_type == REP_SEARCHREF ) {
1273 if ( srs->sr_state.ctxcsn ) {
1274 Attribute *a = attr_find( rs->sr_entry->e_attrs,
1275 slap_schema.si_ad_entryCSN );
1276 /* Don't send the ctx entry twice */
1277 if ( bvmatch( &a->a_nvals[0], srs->sr_state.ctxcsn ))
1278 return LDAP_SUCCESS;
1280 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
1282 rs->sr_ctrls[1] = NULL;
1283 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
1284 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 0, NULL );
1285 } else if ( rs->sr_type == REP_RESULT && rs->sr_err == LDAP_SUCCESS ) {
1286 struct berval cookie;
1288 slap_compose_sync_cookie( op, &cookie,
1289 &op->ors_filter->f_and->f_ava->aa_value,
1290 srs->sr_state.sid, srs->sr_state.rid );
1292 /* Is this a regular refresh? */
1294 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
1296 rs->sr_ctrls[1] = NULL;
1297 rs->sr_err = syncprov_done_ctrl( op, rs, rs->sr_ctrls,
1298 0, 1, &cookie, LDAP_SYNC_REFRESH_PRESENTS );
1301 /* It's RefreshAndPersist, transition to Persist phase */
1302 syncprov_sendinfo( op, rs, rs->sr_nentries ?
1303 LDAP_TAG_SYNC_REFRESH_PRESENT : LDAP_TAG_SYNC_REFRESH_DELETE,
1304 &cookie, 1, NULL, 0 );
1305 /* Flush any queued persist messages */
1306 if ( ss->ss_so->s_res ) {
1307 syncres *sr, *srnext;
1312 ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex );
1314 for (sr = ss->ss_so->s_res; sr; sr=srnext) {
1315 int rc = LDAP_SUCCESS;
1316 srnext = sr->s_next;
1318 opc.sndn = sr->s_ndn;
1319 opc.suuid = sr->s_uuid;
1320 opc.sctxcsn = sr->s_csn;
1321 opc.sreference = sr->s_isreference;
1324 if ( sr->s_mode != LDAP_SYNC_DELETE ) {
1325 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1326 rc = be_entry_get_rw( op, &opc.sndn, NULL, NULL, 0, &e );
1327 op->o_bd->bd_info = (BackendInfo *)on;
1329 if ( rc == LDAP_SUCCESS )
1330 syncprov_sendresp( op, &opc, ss->ss_so, e,
1334 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1335 be_entry_release_r( op, e );
1336 op->o_bd->bd_info = (BackendInfo *)on;
1340 ss->ss_so->s_res = NULL;
1341 ss->ss_so->s_restail = NULL;
1344 /* Turn off the refreshing flag */
1345 ss->ss_so->s_flags ^= PS_IS_REFRESHING;
1347 ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
1349 /* Detach this Op from frontend control */
1350 syncprov_detach_op( op, ss->ss_so );
1352 return LDAP_SUCCESS;
1356 return SLAP_CB_CONTINUE;
1360 syncprov_op_search( Operation *op, SlapReply *rs )
1362 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1363 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
1365 int gotstate = 0, nochange = 0;
1366 Filter *fand, *fava;
1367 syncops *sop = NULL;
1371 if ( !(op->o_sync_mode & SLAP_SYNC_REFRESH) ) return SLAP_CB_CONTINUE;
1373 if ( op->ors_deref & LDAP_DEREF_SEARCHING ) {
1374 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR, "illegal value for derefAliases" );
1378 srs = op->o_controls[sync_cid];
1380 /* If this is a persistent search, set it up right away */
1381 if ( op->o_sync_mode & SLAP_SYNC_PERSIST ) {
1391 so.s_flags = PS_IS_REFRESHING;
1392 /* syncprov_findbase expects to be called as a callback... */
1393 sc.sc_private = &opc;
1395 cb = op->o_callback;
1396 op->o_callback = ≻
1397 rs->sr_err = syncprov_findbase( op, &fc );
1398 op->o_callback = cb;
1400 if ( rs->sr_err != LDAP_SUCCESS ) {
1401 send_ldap_result( op, rs );
1404 sop = ch_malloc( sizeof( syncops ));
1406 ldap_pvt_thread_mutex_init( &sop->s_mutex );
1407 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1408 sop->s_sid = srs->sr_state.sid;
1409 sop->s_rid = srs->sr_state.rid;
1410 sop->s_next = si->si_ops;
1413 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1416 /* If we have a cookie, handle the PRESENT lookups
1418 if ( srs->sr_state.ctxcsn ) {
1419 /* Is the CSN in a valid format? */
1420 if ( srs->sr_state.ctxcsn->bv_len >= LDAP_LUTIL_CSNSTR_BUFSIZE ) {
1421 send_ldap_error( op, rs, LDAP_OTHER, "invalid sync cookie" );
1424 /* Is the CSN still present in the database? */
1425 if ( syncprov_findcsn( op, FIND_CSN ) != LDAP_SUCCESS ) {
1426 /* No, so a reload is required */
1427 #if 0 /* the consumer doesn't seem to send this hint */
1428 if ( op->o_sync_rhint == 0 ) {
1429 send_ldap_error( op, rs, LDAP_SYNC_REFRESH_REQUIRED, "sync cookie is stale" );
1435 /* If just Refreshing and nothing has changed, shortcut it */
1436 if ( bvmatch( srs->sr_state.ctxcsn, &si->si_ctxcsn )) {
1438 if ( !(op->o_sync_mode & SLAP_SYNC_PERSIST) ) {
1439 LDAPControl *ctrls[2];
1443 syncprov_done_ctrl( op, rs, ctrls, 0, 0,
1444 NULL, LDAP_SYNC_REFRESH_DELETES );
1445 rs->sr_ctrls = ctrls;
1446 rs->sr_err = LDAP_SUCCESS;
1447 send_ldap_result( op, rs );
1452 /* If context has changed, check for Present UUIDs */
1453 if ( syncprov_findcsn( op, FIND_PRESENT ) != LDAP_SUCCESS ) {
1454 send_ldap_result( op, rs );
1460 /* If we didn't get a cookie and we don't know our contextcsn, try to
1463 if ( !gotstate && !si->si_gotcsn ) {
1464 struct berval bv = BER_BVC("1"), *old;
1466 old = srs->sr_state.ctxcsn;
1467 srs->sr_state.ctxcsn = &bv;
1468 syncprov_findcsn( op, FIND_CSN );
1469 srs->sr_state.ctxcsn = old;
1472 /* Append CSN range to search filter, save original filter
1473 * for persistent search evaluation
1476 sop->s_filterstr= op->ors_filterstr;
1479 fand = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
1480 fand->f_choice = LDAP_FILTER_AND;
1481 fand->f_next = NULL;
1482 fava = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
1483 fava->f_choice = LDAP_FILTER_LE;
1484 fava->f_ava = op->o_tmpalloc( sizeof(AttributeAssertion), op->o_tmpmemctx );
1485 fava->f_ava->aa_desc = slap_schema.si_ad_entryCSN;
1486 ber_dupbv_x( &fava->f_ava->aa_value, &si->si_ctxcsn, op->o_tmpmemctx );
1489 fava->f_next = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
1490 fava = fava->f_next;
1491 fava->f_choice = LDAP_FILTER_GE;
1492 fava->f_ava = op->o_tmpalloc( sizeof(AttributeAssertion), op->o_tmpmemctx );
1493 fava->f_ava->aa_desc = slap_schema.si_ad_entryCSN;
1494 ber_dupbv_x( &fava->f_ava->aa_value, srs->sr_state.ctxcsn, op->o_tmpmemctx );
1496 fava->f_next = op->ors_filter;
1497 op->ors_filter = fand;
1498 filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
1501 /* Let our callback add needed info to returned entries */
1502 cb = op->o_tmpcalloc(1, sizeof(slap_callback)+sizeof(searchstate), op->o_tmpmemctx);
1503 ss = (searchstate *)(cb+1);
1506 cb->sc_response = syncprov_search_response;
1507 cb->sc_cleanup = syncprov_search_cleanup;
1508 cb->sc_private = ss;
1509 cb->sc_next = op->o_callback;
1510 op->o_callback = cb;
1512 op->o_sync_mode &= SLAP_CONTROL_MASK;
1514 /* If this is a persistent search and no changes were reported during
1515 * the refresh phase, just invoke the response callback to transition
1516 * us into persist phase
1519 rs->sr_err = LDAP_SUCCESS;
1520 rs->sr_nentries = 0;
1521 send_ldap_result( op, rs );
1524 return SLAP_CB_CONTINUE;
1536 slap_overinst *on = (slap_overinst *)be->bd_info;
1537 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
1540 if ( strcasecmp( argv[ 0 ], "syncprov-checkpoint" ) == 0 ) {
1542 fprintf( stderr, "%s: line %d: wrong number of arguments in "
1543 "\"syncprov-checkpoint <ops> <minutes>\"\n", fname, lineno );
1546 si->si_chkops = atoi( argv[1] );
1547 si->si_chktime = atoi( argv[2] ) * 60;
1550 return SLAP_CONF_UNKNOWN;
1554 return SLAP_CONF_UNKNOWN;
1562 slap_overinst *on = (slap_overinst *)be->bd_info;
1563 syncprov_info_t *si;
1565 si = ch_calloc(1, sizeof(syncprov_info_t));
1566 on->on_bi.bi_private = si;
1567 ldap_pvt_thread_mutex_init( &si->si_csn_mutex );
1568 ldap_pvt_thread_mutex_init( &si->si_ops_mutex );
1569 si->si_ctxcsn.bv_val = si->si_ctxcsnbuf;
1571 csn_anlist[0].an_desc = slap_schema.si_ad_entryCSN;
1572 csn_anlist[0].an_name = slap_schema.si_ad_entryCSN->ad_cname;
1574 uuid_anlist[0].an_desc = slap_schema.si_ad_entryUUID;
1575 uuid_anlist[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
1581 syncprov_db_destroy(
1585 slap_overinst *on = (slap_overinst *)be->bd_info;
1586 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
1589 ldap_pvt_thread_mutex_destroy( &si->si_ops_mutex );
1590 ldap_pvt_thread_mutex_destroy( &si->si_csn_mutex );
1597 static int syncprov_parseCtrl (
1606 struct berval cookie = BER_BVNULL;
1610 if ( op->o_sync != SLAP_CONTROL_NONE ) {
1611 rs->sr_text = "Sync control specified multiple times";
1612 return LDAP_PROTOCOL_ERROR;
1615 if ( op->o_pagedresults != SLAP_CONTROL_NONE ) {
1616 rs->sr_text = "Sync control specified with pagedResults control";
1617 return LDAP_PROTOCOL_ERROR;
1620 if ( ctrl->ldctl_value.bv_len == 0 ) {
1621 rs->sr_text = "Sync control value is empty (or absent)";
1622 return LDAP_PROTOCOL_ERROR;
1625 /* Parse the control value
1626 * syncRequestValue ::= SEQUENCE {
1631 * refreshAndPersist (3)
1633 * cookie syncCookie OPTIONAL
1637 ber = ber_init( &ctrl->ldctl_value );
1639 rs->sr_text = "internal error";
1643 if ( (tag = ber_scanf( ber, "{i" /*}*/, &mode )) == LBER_ERROR ) {
1644 rs->sr_text = "Sync control : mode decoding error";
1645 return LDAP_PROTOCOL_ERROR;
1649 case LDAP_SYNC_REFRESH_ONLY:
1650 mode = SLAP_SYNC_REFRESH;
1652 case LDAP_SYNC_REFRESH_AND_PERSIST:
1653 mode = SLAP_SYNC_REFRESH_AND_PERSIST;
1656 rs->sr_text = "Sync control : unknown update mode";
1657 return LDAP_PROTOCOL_ERROR;
1660 tag = ber_peek_tag( ber, &len );
1662 if ( tag == LDAP_TAG_SYNC_COOKIE ) {
1663 if (( ber_scanf( ber, /*{*/ "o", &cookie )) == LBER_ERROR ) {
1664 rs->sr_text = "Sync control : cookie decoding error";
1665 return LDAP_PROTOCOL_ERROR;
1668 if ( tag == LDAP_TAG_RELOAD_HINT ) {
1669 if (( ber_scanf( ber, /*{*/ "b", &rhint )) == LBER_ERROR ) {
1670 rs->sr_text = "Sync control : rhint decoding error";
1671 return LDAP_PROTOCOL_ERROR;
1674 if (( ber_scanf( ber, /*{*/ "}")) == LBER_ERROR ) {
1675 rs->sr_text = "Sync control : decoding error";
1676 return LDAP_PROTOCOL_ERROR;
1678 sr = op->o_tmpcalloc( 1, sizeof(struct sync_control), op->o_tmpmemctx );
1679 sr->sr_rhint = rhint;
1680 if (!BER_BVISNULL(&cookie)) {
1681 ber_bvarray_add( &sr->sr_state.octet_str, &cookie );
1682 slap_parse_sync_cookie( &sr->sr_state );
1685 op->o_controls[sync_cid] = sr;
1687 (void) ber_free( ber, 1 );
1689 op->o_sync = ctrl->ldctl_iscritical
1690 ? SLAP_CONTROL_CRITICAL
1691 : SLAP_CONTROL_NONCRITICAL;
1693 op->o_sync_mode |= mode; /* o_sync_mode shares o_sync */
1695 return LDAP_SUCCESS;
1698 /* This overlay is set up for dynamic loading via moduleload. For static
1699 * configuration, you'll need to arrange for the slap_overinst to be
1700 * initialized and registered by some other function inside slapd.
1703 static slap_overinst syncprov;
1710 rc = register_supported_control( LDAP_CONTROL_SYNC,
1711 SLAP_CTRL_HIDE|SLAP_CTRL_SEARCH, NULL,
1712 syncprov_parseCtrl, &sync_cid );
1713 if ( rc != LDAP_SUCCESS ) {
1714 fprintf( stderr, "Failed to register control %d\n", rc );
1718 syncprov.on_bi.bi_type = "syncprov";
1719 syncprov.on_bi.bi_db_init = syncprov_db_init;
1720 syncprov.on_bi.bi_db_config = syncprov_db_config;
1721 syncprov.on_bi.bi_db_destroy = syncprov_db_destroy;
1723 syncprov.on_bi.bi_op_abandon = syncprov_op_abandon;
1724 syncprov.on_bi.bi_op_cancel = syncprov_op_abandon;
1726 syncprov.on_bi.bi_op_add = syncprov_op_mod;
1728 syncprov.on_bi.bi_op_compare = syncprov_op_compare;
1730 syncprov.on_bi.bi_op_delete = syncprov_op_mod;
1731 syncprov.on_bi.bi_op_modify = syncprov_op_mod;
1732 syncprov.on_bi.bi_op_modrdn = syncprov_op_mod;
1733 syncprov.on_bi.bi_op_search = syncprov_op_search;
1734 syncprov.on_bi.bi_extended = syncprov_op_extended;
1737 syncprov.on_response = syncprov_response;
1740 return overlay_register( &syncprov );
1743 #if SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC
1745 init_module( int argc, char *argv[] )
1747 return syncprov_init();
1749 #endif /* SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC */
1751 #endif /* defined(SLAPD_OVER_SYNCPROV) */