2 /* syncprov.c - syncrepl provider */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2004-2008 The OpenLDAP Foundation.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted only as authorized by the OpenLDAP
12 * A copy of this license is available in the file LICENSE in the
13 * top-level directory of the distribution or, alternatively, at
14 * <http://www.OpenLDAP.org/license.html>.
17 * This work was initially developed by Howard Chu for inclusion in
23 #ifdef SLAPD_OVER_SYNCPROV
25 #include <ac/string.h>
31 /* A modify request on a particular entry */
32 typedef struct modinst {
33 struct modinst *mi_next;
37 typedef struct modtarget {
38 struct modinst *mt_mods;
39 struct modinst *mt_tail;
41 ldap_pvt_thread_mutex_t mt_mutex;
44 /* A queued result of a persistent search */
45 typedef struct syncres {
46 struct syncres *s_next;
55 /* Record of a persistent search */
56 typedef struct syncops {
57 struct syncops *s_next;
58 struct berval s_base; /* ndn of search base */
59 ID s_eid; /* entryID of search base */
60 Operation *s_op; /* search op */
63 struct berval s_filterstr;
64 int s_flags; /* search status */
65 #define PS_IS_REFRESHING 0x01
66 #define PS_IS_DETACHED 0x02
67 #define PS_WROTE_BASE 0x04
68 #define PS_FIND_BASE 0x08
69 #define PS_FIX_FILTER 0x10
71 int s_inuse; /* reference count */
72 struct syncres *s_res;
73 struct syncres *s_restail;
74 struct re_s *s_qtask; /* task for playing psearch responses */
75 #define RUNQ_INTERVAL 36000 /* a long time */
76 ldap_pvt_thread_mutex_t s_mutex;
79 /* A received sync control */
80 typedef struct sync_control {
81 struct sync_cookie sr_state;
85 #if 0 /* moved back to slap.h */
86 #define o_sync o_ctrlflag[slap_cids.sc_LDAPsync]
88 /* o_sync_mode uses data bits of o_sync */
89 #define o_sync_mode o_ctrlflag[slap_cids.sc_LDAPsync]
91 #define SLAP_SYNC_NONE (LDAP_SYNC_NONE<<SLAP_CONTROL_SHIFT)
92 #define SLAP_SYNC_REFRESH (LDAP_SYNC_REFRESH_ONLY<<SLAP_CONTROL_SHIFT)
93 #define SLAP_SYNC_PERSIST (LDAP_SYNC_RESERVED<<SLAP_CONTROL_SHIFT)
94 #define SLAP_SYNC_REFRESH_AND_PERSIST (LDAP_SYNC_REFRESH_AND_PERSIST<<SLAP_CONTROL_SHIFT)
96 /* Record of which searches matched at premodify step */
97 typedef struct syncmatches {
98 struct syncmatches *sm_next;
102 /* Session log data */
103 typedef struct slog_entry {
104 struct slog_entry *se_next;
105 struct berval se_uuid;
106 struct berval se_csn;
111 typedef struct sessionlog {
112 struct berval sl_mincsn;
117 ldap_pvt_thread_mutex_t sl_mutex;
120 /* The main state for this overlay */
121 typedef struct syncprov_info_t {
123 BerVarray si_ctxcsn; /* ldapsync context */
126 int si_chkops; /* checkpointing info */
128 int si_numops; /* number of ops since last checkpoint */
129 int si_nopres; /* Skip present phase */
130 int si_usehint; /* use reload hint */
131 time_t si_chklast; /* time of last checkpoint */
132 Avlnode *si_mods; /* entries being modified */
134 ldap_pvt_thread_rdwr_t si_csn_rwlock;
135 ldap_pvt_thread_mutex_t si_ops_mutex;
136 ldap_pvt_thread_mutex_t si_mods_mutex;
139 typedef struct opcookie {
141 syncmatches *smatches;
142 struct berval sdn; /* DN of entry, for deletes */
144 struct berval suuid; /* UUID of entry */
145 struct berval sctxcsn;
146 int sreference; /* Is the entry a reference? */
149 typedef struct fbase_cookie {
150 struct berval *fdn; /* DN of a modified entry, for scope testing */
151 syncops *fss; /* persistent search we're testing against */
152 int fbase; /* if TRUE we found the search base and it's still valid */
153 int fscope; /* if TRUE then fdn is within the psearch scope */
156 static AttributeName csn_anlist[3];
157 static AttributeName uuid_anlist[2];
159 /* Build a LDAPsync intermediate state control */
165 int entry_sync_state,
169 struct berval *cookie )
174 BerElementBuffer berbuf;
175 BerElement *ber = (BerElement *)&berbuf;
177 struct berval entryuuid_bv = BER_BVNULL;
179 ber_init2( ber, 0, LBER_USE_DER );
180 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
182 ctrls[num_ctrls] = op->o_tmpalloc( sizeof ( LDAPControl ), op->o_tmpmemctx );
184 for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
185 AttributeDescription *desc = a->a_desc;
186 if ( desc == slap_schema.si_ad_entryUUID ) {
187 entryuuid_bv = a->a_nvals[0];
192 /* FIXME: what if entryuuid is NULL or empty ? */
194 if ( send_cookie && cookie ) {
195 ber_printf( ber, "{eOON}",
196 entry_sync_state, &entryuuid_bv, cookie );
198 ber_printf( ber, "{eON}",
199 entry_sync_state, &entryuuid_bv );
202 ctrls[num_ctrls]->ldctl_oid = LDAP_CONTROL_SYNC_STATE;
203 ctrls[num_ctrls]->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
204 ret = ber_flatten2( ber, &ctrls[num_ctrls]->ldctl_value, 1 );
209 Debug( LDAP_DEBUG_TRACE,
210 "slap_build_sync_ctrl: ber_flatten2 failed\n",
212 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
219 /* Build a LDAPsync final state control */
227 struct berval *cookie,
231 BerElementBuffer berbuf;
232 BerElement *ber = (BerElement *)&berbuf;
234 ber_init2( ber, NULL, LBER_USE_DER );
235 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
237 ctrls[num_ctrls] = op->o_tmpalloc( sizeof ( LDAPControl ), op->o_tmpmemctx );
239 ber_printf( ber, "{" );
240 if ( send_cookie && cookie ) {
241 ber_printf( ber, "O", cookie );
243 if ( refreshDeletes == LDAP_SYNC_REFRESH_DELETES ) {
244 ber_printf( ber, "b", refreshDeletes );
246 ber_printf( ber, "N}" );
248 ctrls[num_ctrls]->ldctl_oid = LDAP_CONTROL_SYNC_DONE;
249 ctrls[num_ctrls]->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
250 ret = ber_flatten2( ber, &ctrls[num_ctrls]->ldctl_value, 1 );
255 Debug( LDAP_DEBUG_TRACE,
256 "syncprov_done_ctrl: ber_flatten2 failed\n",
258 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
270 struct berval *cookie,
275 BerElementBuffer berbuf;
276 BerElement *ber = (BerElement *)&berbuf;
277 struct berval rspdata;
281 ber_init2( ber, NULL, LBER_USE_DER );
282 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
286 case LDAP_TAG_SYNC_NEW_COOKIE:
287 ber_printf( ber, "tO", type, cookie );
289 case LDAP_TAG_SYNC_REFRESH_DELETE:
290 case LDAP_TAG_SYNC_REFRESH_PRESENT:
291 ber_printf( ber, "t{", type );
293 ber_printf( ber, "O", cookie );
295 if ( refreshDone == 0 ) {
296 ber_printf( ber, "b", refreshDone );
298 ber_printf( ber, "N}" );
300 case LDAP_TAG_SYNC_ID_SET:
301 ber_printf( ber, "t{", type );
303 ber_printf( ber, "O", cookie );
305 if ( refreshDeletes == 1 ) {
306 ber_printf( ber, "b", refreshDeletes );
308 ber_printf( ber, "[W]", syncUUIDs );
309 ber_printf( ber, "N}" );
312 Debug( LDAP_DEBUG_TRACE,
313 "syncprov_sendinfo: invalid syncinfo type (%d)\n",
319 ret = ber_flatten2( ber, &rspdata, 0 );
322 Debug( LDAP_DEBUG_TRACE,
323 "syncprov_sendinfo: ber_flatten2 failed\n",
325 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
329 rs->sr_rspoid = LDAP_SYNC_INFO;
330 rs->sr_rspdata = &rspdata;
331 send_ldap_intermediate( op, rs );
332 rs->sr_rspdata = NULL;
338 /* Find a modtarget in an AVL tree */
340 sp_avl_cmp( const void *c1, const void *c2 )
342 const modtarget *m1, *m2;
346 rc = m1->mt_op->o_req_ndn.bv_len - m2->mt_op->o_req_ndn.bv_len;
349 return ber_bvcmp( &m1->mt_op->o_req_ndn, &m2->mt_op->o_req_ndn );
352 /* syncprov_findbase:
353 * finds the true DN of the base of a search (with alias dereferencing) and
354 * checks to make sure the base entry doesn't get replaced with a different
355 * entry (e.g., swapping trees via ModDN, or retargeting an alias). If a
356 * change is detected, any persistent search on this base must be terminated /
358 * On the first call, we just save the DN and entryID. On subsequent calls
359 * we compare the DN and entryID with the saved values.
362 findbase_cb( Operation *op, SlapReply *rs )
364 slap_callback *sc = op->o_callback;
366 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
367 fbase_cookie *fc = sc->sc_private;
369 /* If no entryID, we're looking for the first time.
370 * Just store whatever we got.
372 if ( fc->fss->s_eid == NOID ) {
374 fc->fss->s_eid = rs->sr_entry->e_id;
375 ber_dupbv( &fc->fss->s_base, &rs->sr_entry->e_nname );
377 } else if ( rs->sr_entry->e_id == fc->fss->s_eid &&
378 dn_match( &rs->sr_entry->e_nname, &fc->fss->s_base )) {
380 /* OK, the DN is the same and the entryID is the same. */
384 if ( rs->sr_err != LDAP_SUCCESS ) {
385 Debug( LDAP_DEBUG_ANY, "findbase failed! %d\n", rs->sr_err,0,0 );
390 static Filter generic_filter = { LDAP_FILTER_PRESENT, { 0 }, NULL };
391 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
394 syncprov_findbase( Operation *op, fbase_cookie *fc )
396 opcookie *opc = op->o_callback->sc_private;
397 slap_overinst *on = opc->son;
399 /* Use basic parameters from syncrepl search, but use
400 * current op's threadctx / tmpmemctx
402 ldap_pvt_thread_mutex_lock( &fc->fss->s_mutex );
403 if ( fc->fss->s_flags & PS_FIND_BASE ) {
404 slap_callback cb = {0};
406 SlapReply frs = { REP_RESULT };
409 fc->fss->s_flags ^= PS_FIND_BASE;
410 ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
412 fop = *fc->fss->s_op;
414 fop.o_bd = fop.o_bd->bd_self;
415 fop.o_hdr = op->o_hdr;
416 fop.o_time = op->o_time;
417 fop.o_tincr = op->o_tincr;
419 cb.sc_response = findbase_cb;
422 fop.o_sync_mode = 0; /* turn off sync mode */
423 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
424 fop.o_callback = &cb;
425 fop.o_tag = LDAP_REQ_SEARCH;
426 fop.ors_scope = LDAP_SCOPE_BASE;
427 fop.ors_limit = NULL;
429 fop.ors_tlimit = SLAP_NO_LIMIT;
430 fop.ors_attrs = slap_anlist_no_attrs;
431 fop.ors_attrsonly = 1;
432 fop.ors_filter = &generic_filter;
433 fop.ors_filterstr = generic_filterstr;
435 rc = fop.o_bd->be_search( &fop, &frs );
437 ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
441 /* After the first call, see if the fdn resides in the scope */
442 if ( fc->fbase == 1 ) {
443 switch ( fc->fss->s_op->ors_scope ) {
444 case LDAP_SCOPE_BASE:
445 fc->fscope = dn_match( fc->fdn, &fc->fss->s_base );
447 case LDAP_SCOPE_ONELEVEL: {
449 dnParent( fc->fdn, &pdn );
450 fc->fscope = dn_match( &pdn, &fc->fss->s_base );
452 case LDAP_SCOPE_SUBTREE:
453 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base );
455 case LDAP_SCOPE_SUBORDINATE:
456 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base ) &&
457 !dn_match( fc->fdn, &fc->fss->s_base );
465 /* If entryID has changed, then the base of this search has
466 * changed. Invalidate the psearch.
468 return LDAP_NO_SUCH_OBJECT;
472 * This function has three different purposes, but they all use a search
473 * that filters on entryCSN so they're combined here.
474 * 1: at startup time, after a contextCSN has been read from the database,
475 * we search for all entries with CSN >= contextCSN in case the contextCSN
476 * was not checkpointed at the previous shutdown.
478 * 2: when the current contextCSN is known and we have a sync cookie, we search
479 * for one entry with CSN = the cookie CSN. If not found, try <= cookie CSN.
480 * If an entry is found, the cookie CSN is valid, otherwise it is stale.
482 * 3: during a refresh phase, we search for all entries with CSN <= the cookie
483 * CSN, and generate Present records for them. We always collect this result
484 * in SyncID sets, even if there's only one match.
486 typedef enum find_csn_t {
493 findmax_cb( Operation *op, SlapReply *rs )
495 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
496 struct berval *maxcsn = op->o_callback->sc_private;
497 Attribute *a = attr_find( rs->sr_entry->e_attrs,
498 slap_schema.si_ad_entryCSN );
500 if ( a && ber_bvcmp( &a->a_vals[0], maxcsn ) > 0 &&
501 slap_parse_csn_sid( &a->a_vals[0] ) == slap_serverID ) {
502 maxcsn->bv_len = a->a_vals[0].bv_len;
503 strcpy( maxcsn->bv_val, a->a_vals[0].bv_val );
510 findcsn_cb( Operation *op, SlapReply *rs )
512 slap_callback *sc = op->o_callback;
514 /* We just want to know that at least one exists, so it's OK if
515 * we exceed the unchecked limit.
517 if ( rs->sr_err == LDAP_ADMINLIMIT_EXCEEDED ||
518 (rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS )) {
519 sc->sc_private = (void *)1;
524 /* Build a list of entryUUIDs for sending in a SyncID set */
528 typedef struct fpres_cookie {
535 findpres_cb( Operation *op, SlapReply *rs )
537 slap_callback *sc = op->o_callback;
538 fpres_cookie *pc = sc->sc_private;
540 int ret = SLAP_CB_CONTINUE;
542 switch ( rs->sr_type ) {
544 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
546 pc->uuids[pc->num].bv_val = pc->last;
547 AC_MEMCPY( pc->uuids[pc->num].bv_val, a->a_nvals[0].bv_val,
548 pc->uuids[pc->num].bv_len );
550 pc->last = pc->uuids[pc->num].bv_val;
551 pc->uuids[pc->num].bv_val = NULL;
554 if ( pc->num != SLAP_SYNCUUID_SET_SIZE )
560 ret = syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET, NULL,
562 pc->uuids[pc->num].bv_val = pc->last;
564 pc->last = pc->uuids[0].bv_val;
574 syncprov_findcsn( Operation *op, find_csn_t mode )
576 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
577 syncprov_info_t *si = on->on_bi.bi_private;
579 slap_callback cb = {0};
581 SlapReply frs = { REP_RESULT };
582 char buf[LDAP_LUTIL_CSNSTR_BUFSIZE + STRLENOF("(entryCSN<=)")];
583 char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
584 struct berval maxcsn;
586 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
587 fpres_cookie pcookie;
588 sync_control *srs = NULL;
589 struct slap_limits_set fc_limits;
590 int i, rc = LDAP_SUCCESS, findcsn_retry = 1;
593 if ( mode != FIND_MAXCSN ) {
594 srs = op->o_controls[slap_cids.sc_LDAPsync];
598 fop.o_sync_mode &= SLAP_CONTROL_MASK; /* turn off sync_mode */
599 /* We want pure entries, not referrals */
600 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
603 cf.f_av_desc = slap_schema.si_ad_entryCSN;
604 BER_BVZERO( &cf.f_av_value );
607 fop.o_callback = &cb;
608 fop.ors_limit = NULL;
609 fop.ors_tlimit = SLAP_NO_LIMIT;
610 fop.ors_filter = &cf;
611 fop.ors_filterstr.bv_val = buf;
616 cf.f_choice = LDAP_FILTER_GE;
617 /* If there are multiple CSNs, use the one with our serverID */
618 for ( i=0; i<si->si_numcsns; i++) {
619 if ( slap_serverID == si->si_sids[i] ) {
624 if ( i == si->si_numcsns ) {
625 /* No match: this is multimaster, and none of the content in the DB
626 * originated locally. Treat like no CSN.
628 return LDAP_NO_SUCH_OBJECT;
630 cf.f_av_value = si->si_ctxcsn[maxid];
631 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
632 "(entryCSN>=%s)", cf.f_av_value.bv_val );
633 if ( fop.ors_filterstr.bv_len < 0 || fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
636 fop.ors_attrsonly = 0;
637 fop.ors_attrs = csn_anlist;
638 fop.ors_slimit = SLAP_NO_LIMIT;
639 cb.sc_private = &maxcsn;
640 cb.sc_response = findmax_cb;
641 strcpy( cbuf, cf.f_av_value.bv_val );
642 maxcsn.bv_val = cbuf;
643 maxcsn.bv_len = cf.f_av_value.bv_len;
646 if ( BER_BVISEMPTY( &cf.f_av_value )) {
647 cf.f_av_value = srs->sr_state.ctxcsn[0];
648 /* If there are multiple CSNs, use the smallest */
649 for ( i=1; i<srs->sr_state.numcsns; i++ ) {
650 if ( ber_bvcmp( &cf.f_av_value, &srs->sr_state.ctxcsn[i] )
652 cf.f_av_value = srs->sr_state.ctxcsn[i];
656 /* Look for exact match the first time */
657 if ( findcsn_retry ) {
658 cf.f_choice = LDAP_FILTER_EQUALITY;
659 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
660 "(entryCSN=%s)", cf.f_av_value.bv_val );
661 /* On retry, look for <= */
663 cf.f_choice = LDAP_FILTER_LE;
664 fop.ors_limit = &fc_limits;
665 memset( &fc_limits, 0, sizeof( fc_limits ));
666 fc_limits.lms_s_unchecked = 1;
667 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
668 "(entryCSN<=%s)", cf.f_av_value.bv_val );
670 if ( fop.ors_filterstr.bv_len < 0 || fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
673 fop.ors_attrsonly = 1;
674 fop.ors_attrs = slap_anlist_no_attrs;
676 cb.sc_private = NULL;
677 cb.sc_response = findcsn_cb;
680 fop.ors_filter = op->ors_filter;
681 fop.ors_filterstr = op->ors_filterstr;
682 fop.ors_attrsonly = 0;
683 fop.ors_attrs = uuid_anlist;
684 fop.ors_slimit = SLAP_NO_LIMIT;
685 cb.sc_private = &pcookie;
686 cb.sc_response = findpres_cb;
689 /* preallocate storage for a full set */
690 pcookie.uuids = op->o_tmpalloc( (SLAP_SYNCUUID_SET_SIZE+1) *
691 sizeof(struct berval) + SLAP_SYNCUUID_SET_SIZE * UUID_LEN,
693 pcookie.last = (char *)(pcookie.uuids + SLAP_SYNCUUID_SET_SIZE+1);
694 pcookie.uuids[0].bv_val = pcookie.last;
695 pcookie.uuids[0].bv_len = UUID_LEN;
696 for (i=1; i<SLAP_SYNCUUID_SET_SIZE; i++) {
697 pcookie.uuids[i].bv_val = pcookie.uuids[i-1].bv_val + UUID_LEN;
698 pcookie.uuids[i].bv_len = UUID_LEN;
703 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
704 fop.o_bd->be_search( &fop, &frs );
705 fop.o_bd->bd_info = (BackendInfo *)on;
709 if ( ber_bvcmp( &si->si_ctxcsn[maxid], &maxcsn )) {
710 ber_bvreplace( &si->si_ctxcsn[maxid], &maxcsn );
711 si->si_numops++; /* ensure a checkpoint */
715 /* If matching CSN was not found, invalidate the context. */
716 if ( !cb.sc_private ) {
717 /* If we didn't find an exact match, then try for <= */
718 if ( findcsn_retry ) {
722 rc = LDAP_NO_SUCH_OBJECT;
726 op->o_tmpfree( pcookie.uuids, op->o_tmpmemctx );
734 syncprov_free_syncop( syncops *so )
736 syncres *sr, *srnext;
737 GroupAssertion *ga, *gnext;
739 ldap_pvt_thread_mutex_lock( &so->s_mutex );
740 if ( --so->s_inuse > 0 ) {
741 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
745 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
746 if ( ldap_pvt_runqueue_isrunning( &slapd_rq, so->s_qtask ) )
747 ldap_pvt_runqueue_stoptask( &slapd_rq, so->s_qtask );
748 ldap_pvt_runqueue_remove( &slapd_rq, so->s_qtask );
749 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
751 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
752 if ( so->s_flags & PS_IS_DETACHED ) {
753 filter_free( so->s_op->ors_filter );
754 for ( ga = so->s_op->o_groups; ga; ga=gnext ) {
760 ch_free( so->s_base.bv_val );
761 for ( sr=so->s_res; sr; sr=srnext ) {
765 ldap_pvt_thread_mutex_destroy( &so->s_mutex );
769 /* Send a persistent search response */
771 syncprov_sendresp( Operation *op, opcookie *opc, syncops *so,
772 Entry **e, int mode )
774 slap_overinst *on = opc->son;
776 SlapReply rs = { REP_SEARCH };
777 LDAPControl *ctrls[2];
778 struct berval cookie, csns[2];
780 Attribute a_uuid = {0};
782 if ( so->s_op->o_abandon )
783 return SLAPD_ABANDON;
786 csns[0] = opc->sctxcsn;
787 BER_BVZERO( &csns[1] );
788 slap_compose_sync_cookie( op, &cookie, csns, so->s_rid, so->s_sid );
790 Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: cookie=%s\n", cookie.bv_val, 0, 0 );
792 e_uuid.e_attrs = &a_uuid;
793 a_uuid.a_desc = slap_schema.si_ad_entryUUID;
794 a_uuid.a_nvals = &opc->suuid;
795 rs.sr_err = syncprov_state_ctrl( op, &rs, &e_uuid,
796 mode, ctrls, 0, 1, &cookie );
797 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
800 op->o_bd->bd_info = (BackendInfo *)on->on_info;
804 if ( rs.sr_entry->e_private )
805 rs.sr_flags = REP_ENTRY_MUSTRELEASE;
806 if ( opc->sreference ) {
807 rs.sr_ref = get_entry_referrals( op, rs.sr_entry );
808 rs.sr_err = send_search_reference( op, &rs );
809 ber_bvarray_free( rs.sr_ref );
815 case LDAP_SYNC_MODIFY:
817 if ( rs.sr_entry->e_private )
818 rs.sr_flags = REP_ENTRY_MUSTRELEASE;
819 rs.sr_attrs = op->ors_attrs;
820 rs.sr_err = send_search_entry( op, &rs );
824 case LDAP_SYNC_DELETE:
825 e_uuid.e_attrs = NULL;
826 e_uuid.e_name = opc->sdn;
827 e_uuid.e_nname = opc->sndn;
828 rs.sr_entry = &e_uuid;
829 if ( opc->sreference ) {
830 struct berval bv = BER_BVNULL;
832 rs.sr_err = send_search_reference( op, &rs );
834 rs.sr_err = send_search_entry( op, &rs );
840 /* In case someone else freed it already? */
842 op->o_tmpfree( rs.sr_ctrls[0], op->o_tmpmemctx );
849 /* Play back queued responses */
851 syncprov_qplay( Operation *op, struct re_s *rtask )
853 syncops *so = rtask->arg;
854 slap_overinst *on = LDAP_SLIST_FIRST(&so->s_op->o_extra)->oe_key;
863 ldap_pvt_thread_mutex_lock( &so->s_mutex );
866 so->s_res = sr->s_next;
868 so->s_restail = NULL;
869 /* Exit loop with mutex held */
870 if ( !sr || so->s_op->o_abandon )
872 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
875 opc.sndn = sr->s_ndn;
876 opc.suuid = sr->s_uuid;
877 opc.sctxcsn = sr->s_csn;
878 opc.sreference = sr->s_isreference;
881 if ( sr->s_mode != LDAP_SYNC_DELETE ) {
882 rc = overlay_entry_get_ov( op, &opc.sndn, NULL, NULL, 0, &e, on );
884 Debug( LDAP_DEBUG_SYNC, "syncprov_qplay: failed to get %s, "
885 "error (%d), ignoring...\n", opc.sndn.bv_val, rc, 0 );
891 rc = syncprov_sendresp( op, &opc, so, &e, sr->s_mode );
894 overlay_entry_release_ov( op, e, 0, on );
900 /* Exit loop with mutex held */
901 ldap_pvt_thread_mutex_lock( &so->s_mutex );
906 /* wait until we get explicitly scheduled again */
907 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
908 ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
910 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 1 );
912 /* bail out on any error */
913 ldap_pvt_runqueue_remove( &slapd_rq, rtask );
915 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
916 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
920 /* runqueue task for playing back queued responses */
922 syncprov_qtask( void *ctx, void *arg )
924 struct re_s *rtask = arg;
925 syncops *so = rtask->arg;
926 OperationBuffer opbuf;
933 op->o_hdr = &opbuf.ob_hdr;
934 op->o_controls = opbuf.ob_controls;
935 memset( op->o_controls, 0, sizeof(opbuf.ob_controls) );
937 *op->o_hdr = *so->s_op->o_hdr;
939 op->o_tmpmemctx = slap_sl_mem_create(SLAP_SLAB_SIZE, SLAP_SLAB_STACK, ctx, 1);
940 op->o_tmpmfuncs = &slap_sl_mfuncs;
941 op->o_threadctx = ctx;
943 /* syncprov_qplay expects a fake db */
944 be = *so->s_op->o_bd;
945 be.be_flags |= SLAP_DBFLAG_OVERLAY;
947 LDAP_SLIST_FIRST(&op->o_extra) = NULL;
948 op->o_callback = NULL;
950 rc = syncprov_qplay( op, rtask );
952 /* decrement use count... */
953 syncprov_free_syncop( so );
955 #if 0 /* FIXME: connection_close isn't exported from slapd.
959 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
960 if ( connection_state_closing( op->o_conn )) {
961 connection_close( op->o_conn );
963 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
969 /* Start the task to play back queued psearch responses */
971 syncprov_qstart( syncops *so )
974 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
975 if ( !so->s_qtask ) {
976 so->s_qtask = ldap_pvt_runqueue_insert( &slapd_rq, RUNQ_INTERVAL,
977 syncprov_qtask, so, "syncprov_qtask",
978 so->s_op->o_conn->c_peer_name.bv_val );
982 if (!ldap_pvt_runqueue_isrunning( &slapd_rq, so->s_qtask ) &&
983 !so->s_qtask->next_sched.tv_sec ) {
984 so->s_qtask->interval.tv_sec = 0;
985 ldap_pvt_runqueue_resched( &slapd_rq, so->s_qtask, 0 );
986 so->s_qtask->interval.tv_sec = RUNQ_INTERVAL;
991 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
993 slap_wake_listener();
996 /* Queue a persistent search response */
998 syncprov_qresp( opcookie *opc, syncops *so, int mode )
1003 /* Don't send changes back to their originator */
1004 sid = slap_parse_csn_sid( &opc->sctxcsn );
1005 if ( sid >= 0 && sid == so->s_sid )
1006 return LDAP_SUCCESS;
1008 srsize = sizeof(syncres) + opc->suuid.bv_len + 1 +
1009 opc->sdn.bv_len + 1 + opc->sndn.bv_len + 1;
1010 if ( opc->sctxcsn.bv_len )
1011 srsize += opc->sctxcsn.bv_len + 1;
1012 sr = ch_malloc( srsize );
1014 sr->s_dn.bv_val = (char *)(sr + 1);
1015 sr->s_dn.bv_len = opc->sdn.bv_len;
1017 sr->s_isreference = opc->sreference;
1018 sr->s_ndn.bv_val = lutil_strcopy( sr->s_dn.bv_val,
1019 opc->sdn.bv_val ) + 1;
1020 sr->s_ndn.bv_len = opc->sndn.bv_len;
1021 sr->s_uuid.bv_val = lutil_strcopy( sr->s_ndn.bv_val,
1022 opc->sndn.bv_val ) + 1;
1023 sr->s_uuid.bv_len = opc->suuid.bv_len;
1024 AC_MEMCPY( sr->s_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1025 if ( opc->sctxcsn.bv_len ) {
1026 sr->s_csn.bv_val = sr->s_uuid.bv_val + sr->s_uuid.bv_len + 1;
1027 strcpy( sr->s_csn.bv_val, opc->sctxcsn.bv_val );
1029 sr->s_csn.bv_val = NULL;
1031 sr->s_csn.bv_len = opc->sctxcsn.bv_len;
1033 ldap_pvt_thread_mutex_lock( &so->s_mutex );
1037 so->s_restail->s_next = sr;
1041 /* If the base of the psearch was modified, check it next time round */
1042 if ( so->s_flags & PS_WROTE_BASE ) {
1043 so->s_flags ^= PS_WROTE_BASE;
1044 so->s_flags |= PS_FIND_BASE;
1046 if ( so->s_flags & PS_IS_DETACHED ) {
1047 syncprov_qstart( so );
1049 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
1050 return LDAP_SUCCESS;
1054 syncprov_drop_psearch( syncops *so, int lock )
1056 if ( so->s_flags & PS_IS_DETACHED ) {
1058 ldap_pvt_thread_mutex_lock( &so->s_op->o_conn->c_mutex );
1059 so->s_op->o_conn->c_n_ops_executing--;
1060 so->s_op->o_conn->c_n_ops_completed++;
1061 LDAP_STAILQ_REMOVE( &so->s_op->o_conn->c_ops, so->s_op, Operation,
1064 ldap_pvt_thread_mutex_unlock( &so->s_op->o_conn->c_mutex );
1066 syncprov_free_syncop( so );
1072 syncprov_ab_cleanup( Operation *op, SlapReply *rs )
1074 slap_callback *sc = op->o_callback;
1075 op->o_callback = sc->sc_next;
1076 syncprov_drop_psearch( op->o_callback->sc_private, 0 );
1077 op->o_tmpfree( sc, op->o_tmpmemctx );
1082 syncprov_op_abandon( Operation *op, SlapReply *rs )
1084 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1085 syncprov_info_t *si = on->on_bi.bi_private;
1086 syncops *so, *soprev;
1088 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1089 for ( so=si->si_ops, soprev = (syncops *)&si->si_ops; so;
1090 soprev=so, so=so->s_next ) {
1091 if ( so->s_op->o_connid == op->o_connid &&
1092 so->s_op->o_msgid == op->orn_msgid ) {
1093 so->s_op->o_abandon = 1;
1094 soprev->s_next = so->s_next;
1098 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1100 /* Is this really a Cancel exop? */
1101 if ( op->o_tag != LDAP_REQ_ABANDON ) {
1102 so->s_op->o_cancel = SLAP_CANCEL_ACK;
1103 rs->sr_err = LDAP_CANCELLED;
1104 send_ldap_result( so->s_op, rs );
1105 if ( so->s_flags & PS_IS_DETACHED ) {
1107 cb = op->o_tmpcalloc( 1, sizeof(slap_callback), op->o_tmpmemctx );
1108 cb->sc_cleanup = syncprov_ab_cleanup;
1109 cb->sc_next = op->o_callback;
1110 cb->sc_private = so;
1111 return SLAP_CB_CONTINUE;
1114 syncprov_drop_psearch( so, 0 );
1116 return SLAP_CB_CONTINUE;
1119 /* Find which persistent searches are affected by this operation */
1121 syncprov_matchops( Operation *op, opcookie *opc, int saveit )
1123 slap_overinst *on = opc->son;
1124 syncprov_info_t *si = on->on_bi.bi_private;
1127 syncops *ss, *sprev, *snext;
1131 struct berval newdn;
1133 BackendDB *b0 = op->o_bd, db;
1135 fc.fdn = &op->o_req_ndn;
1136 /* compute new DN */
1137 if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1139 if ( op->orr_nnewSup ) pdn = *op->orr_nnewSup;
1140 else dnParent( fc.fdn, &pdn );
1141 build_new_dn( &newdn, &pdn, &op->orr_nnewrdn, op->o_tmpmemctx );
1145 if ( op->o_tag != LDAP_REQ_ADD ) {
1146 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1150 rc = overlay_entry_get_ov( op, fc.fdn, NULL, NULL, 0, &e, on );
1151 /* If we're sending responses now, make a copy and unlock the DB */
1152 if ( e && !saveit ) {
1153 Entry *e2 = entry_dup( e );
1154 overlay_entry_release_ov( op, e, 0, on );
1165 if ( saveit || op->o_tag == LDAP_REQ_ADD ) {
1166 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1167 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1168 opc->sreference = is_entry_referral( e );
1169 a = attr_find( e->e_attrs, slap_schema.si_ad_entryUUID );
1171 ber_dupbv_x( &opc->suuid, &a->a_nvals[0], op->o_tmpmemctx );
1172 } else if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1173 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1174 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1175 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1176 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1179 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1180 for (ss = si->si_ops, sprev = (syncops *)&si->si_ops; ss;
1181 sprev = ss, ss=snext)
1189 if ( ss->s_op->o_abandon )
1197 /* If the base of the search is missing, signal a refresh */
1198 rc = syncprov_findbase( op, &fc );
1199 if ( rc != LDAP_SUCCESS ) {
1200 SlapReply rs = {REP_RESULT};
1201 send_ldap_error( ss->s_op, &rs, LDAP_SYNC_REFRESH_REQUIRED,
1202 "search base has changed" );
1203 sprev->s_next = snext;
1204 syncprov_drop_psearch( ss, 1 );
1210 /* If we're sending results now, look for this op in old matches */
1214 /* Did we modify the search base? */
1215 if ( dn_match( &op->o_req_ndn, &ss->s_base )) {
1216 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1217 ss->s_flags |= PS_WROTE_BASE;
1218 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1221 for ( sm=opc->smatches, old=(syncmatches *)&opc->smatches; sm;
1222 old=sm, sm=sm->sm_next ) {
1223 if ( sm->sm_op == ss ) {
1225 old->sm_next = sm->sm_next;
1226 op->o_tmpfree( sm, op->o_tmpmemctx );
1235 oh.oh_conn = ss->s_op->o_conn;
1236 oh.oh_connid = ss->s_op->o_connid;
1238 op2.o_extra = op->o_extra;
1241 /* check if current o_req_dn is in scope and matches filter */
1242 if ( fc.fscope && test_filter( &op2, e, ss->s_op->ors_filter ) ==
1243 LDAP_COMPARE_TRUE ) {
1245 sm = op->o_tmpalloc( sizeof(syncmatches), op->o_tmpmemctx );
1246 sm->sm_next = opc->smatches;
1248 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1250 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1253 /* if found send UPDATE else send ADD */
1254 syncprov_qresp( opc, ss,
1255 found ? LDAP_SYNC_MODIFY : LDAP_SYNC_ADD );
1257 } else if ( !saveit && found ) {
1259 syncprov_qresp( opc, ss, LDAP_SYNC_DELETE );
1262 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1264 if ( op->o_tag != LDAP_REQ_ADD && e ) {
1265 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1268 overlay_entry_release_ov( op, e, 0, on );
1272 op->o_tmpfree( fc.fdn->bv_val, op->o_tmpmemctx );
1278 syncprov_op_cleanup( Operation *op, SlapReply *rs )
1280 slap_callback *cb = op->o_callback;
1281 opcookie *opc = cb->sc_private;
1282 slap_overinst *on = opc->son;
1283 syncprov_info_t *si = on->on_bi.bi_private;
1284 syncmatches *sm, *snext;
1285 modtarget *mt, mtdummy;
1287 for (sm = opc->smatches; sm; sm=snext) {
1288 snext = sm->sm_next;
1289 syncprov_free_syncop( sm->sm_op );
1290 op->o_tmpfree( sm, op->o_tmpmemctx );
1293 /* Remove op from lock table */
1295 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1296 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
1298 modinst *mi = mt->mt_mods;
1300 /* If there are more, promote the next one */
1301 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1302 if ( mi->mi_next ) {
1303 mt->mt_mods = mi->mi_next;
1304 mt->mt_op = mt->mt_mods->mi_op;
1305 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1307 avl_delete( &si->si_mods, mt, sp_avl_cmp );
1308 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1309 ldap_pvt_thread_mutex_destroy( &mt->mt_mutex );
1313 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1314 if ( !BER_BVISNULL( &opc->suuid ))
1315 op->o_tmpfree( opc->suuid.bv_val, op->o_tmpmemctx );
1316 if ( !BER_BVISNULL( &opc->sndn ))
1317 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1318 if ( !BER_BVISNULL( &opc->sdn ))
1319 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1320 op->o_callback = cb->sc_next;
1321 op->o_tmpfree(cb, op->o_tmpmemctx);
1327 syncprov_checkpoint( Operation *op, SlapReply *rs, slap_overinst *on )
1329 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
1332 SlapReply rsm = { 0 };
1333 slap_callback cb = {0};
1336 mod.sml_numvals = si->si_numcsns;
1337 mod.sml_values = si->si_ctxcsn;
1338 mod.sml_nvalues = NULL;
1339 mod.sml_desc = slap_schema.si_ad_contextCSN;
1340 mod.sml_op = LDAP_MOD_REPLACE;
1342 mod.sml_next = NULL;
1344 cb.sc_response = slap_null_cb;
1346 opm.o_tag = LDAP_REQ_MODIFY;
1347 opm.o_callback = &cb;
1348 opm.orm_modlist = &mod;
1349 opm.orm_no_opattrs = 1;
1350 if ( SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1351 be = *on->on_info->oi_origdb;
1354 opm.o_req_dn = opm.o_bd->be_suffix[0];
1355 opm.o_req_ndn = opm.o_bd->be_nsuffix[0];
1356 opm.o_bd->bd_info = on->on_info->oi_orig;
1357 opm.o_managedsait = SLAP_CONTROL_NONCRITICAL;
1358 opm.o_no_schema_check = 1;
1359 opm.o_bd->be_modify( &opm, &rsm );
1360 if ( mod.sml_next != NULL ) {
1361 slap_mods_free( mod.sml_next, 1 );
1366 syncprov_add_slog( Operation *op )
1368 opcookie *opc = op->o_callback->sc_private;
1369 slap_overinst *on = opc->son;
1370 syncprov_info_t *si = on->on_bi.bi_private;
1376 /* Allocate a record. UUIDs are not NUL-terminated. */
1377 se = ch_malloc( sizeof( slog_entry ) + opc->suuid.bv_len +
1378 op->o_csn.bv_len + 1 );
1380 se->se_tag = op->o_tag;
1382 se->se_uuid.bv_val = (char *)(&se[1]);
1383 AC_MEMCPY( se->se_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1384 se->se_uuid.bv_len = opc->suuid.bv_len;
1386 se->se_csn.bv_val = se->se_uuid.bv_val + opc->suuid.bv_len;
1387 AC_MEMCPY( se->se_csn.bv_val, op->o_csn.bv_val, op->o_csn.bv_len );
1388 se->se_csn.bv_val[op->o_csn.bv_len] = '\0';
1389 se->se_csn.bv_len = op->o_csn.bv_len;
1390 se->se_sid = slap_parse_csn_sid( &se->se_csn );
1392 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1393 if ( sl->sl_head ) {
1394 sl->sl_tail->se_next = se;
1400 while ( sl->sl_num > sl->sl_size ) {
1402 sl->sl_head = se->se_next;
1403 strcpy( sl->sl_mincsn.bv_val, se->se_csn.bv_val );
1404 sl->sl_mincsn.bv_len = se->se_csn.bv_len;
1408 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1412 /* Just set a flag if we found the matching entry */
1414 playlog_cb( Operation *op, SlapReply *rs )
1416 if ( rs->sr_type == REP_SEARCH ) {
1417 op->o_callback->sc_private = (void *)1;
1422 /* enter with sl->sl_mutex locked, release before returning */
1424 syncprov_playlog( Operation *op, SlapReply *rs, sessionlog *sl,
1425 sync_control *srs, BerVarray ctxcsn, int numcsns, int *sids )
1427 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1429 int i, j, ndel, num, nmods, mmods;
1430 char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
1432 struct berval delcsn[2];
1434 if ( !sl->sl_num ) {
1435 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1443 uuids = op->o_tmpalloc( (num+1) * sizeof( struct berval ) +
1444 num * UUID_LEN, op->o_tmpmemctx );
1445 uuids[0].bv_val = (char *)(uuids + num + 1);
1447 delcsn[0].bv_len = 0;
1448 delcsn[0].bv_val = cbuf;
1449 BER_BVZERO(&delcsn[1]);
1451 /* Make a copy of the relevant UUIDs. Put the Deletes up front
1452 * and everything else at the end. Do this first so we can
1453 * unlock the list mutex.
1455 Debug( LDAP_DEBUG_SYNC, "srs csn %s\n",
1456 srs->sr_state.ctxcsn[0].bv_val, 0, 0 );
1457 for ( se=sl->sl_head; se; se=se->se_next ) {
1459 Debug( LDAP_DEBUG_SYNC, "log csn %s\n", se->se_csn.bv_val, 0, 0 );
1461 for ( k=0; k<srs->sr_state.numcsns; k++ ) {
1462 if ( se->se_sid == srs->sr_state.sids[k] ) {
1463 ndel = ber_bvcmp( &se->se_csn, &srs->sr_state.ctxcsn[k] );
1468 Debug( LDAP_DEBUG_SYNC, "cmp %d, too old\n", ndel, 0, 0 );
1472 for ( k=0; k<numcsns; k++ ) {
1473 if ( se->se_sid == sids[k] ) {
1474 ndel = ber_bvcmp( &se->se_csn, &ctxcsn[k] );
1479 Debug( LDAP_DEBUG_SYNC, "cmp %d, too new\n", ndel, 0, 0 );
1482 if ( se->se_tag == LDAP_REQ_DELETE ) {
1485 AC_MEMCPY( cbuf, se->se_csn.bv_val, se->se_csn.bv_len );
1486 delcsn[0].bv_len = se->se_csn.bv_len;
1487 delcsn[0].bv_val[delcsn[0].bv_len] = '\0';
1492 uuids[j].bv_val = uuids[0].bv_val + (j * UUID_LEN);
1493 AC_MEMCPY(uuids[j].bv_val, se->se_uuid.bv_val, UUID_LEN);
1494 uuids[j].bv_len = UUID_LEN;
1496 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1500 /* Zero out unused slots */
1501 for ( i=ndel; i < num - nmods; i++ )
1502 uuids[i].bv_len = 0;
1504 /* Mods must be validated to see if they belong in this delete set.
1508 /* Strip any duplicates */
1509 for ( i=0; i<nmods; i++ ) {
1510 for ( j=0; j<ndel; j++ ) {
1511 if ( bvmatch( &uuids[j], &uuids[num - 1 - i] )) {
1512 uuids[num - 1 - i].bv_len = 0;
1517 if ( uuids[num - 1 - i].bv_len == 0 ) continue;
1518 for ( j=0; j<i; j++ ) {
1519 if ( bvmatch( &uuids[num - 1 - j], &uuids[num - 1 - i] )) {
1520 uuids[num - 1 - i].bv_len = 0;
1529 SlapReply frs = { REP_RESULT };
1532 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
1533 slap_callback cb = {0};
1537 fop.o_sync_mode = 0;
1538 fop.o_callback = &cb;
1539 fop.ors_limit = NULL;
1540 fop.ors_tlimit = SLAP_NO_LIMIT;
1541 fop.ors_attrs = slap_anlist_all_attributes;
1542 fop.ors_attrsonly = 0;
1543 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
1545 af.f_choice = LDAP_FILTER_AND;
1548 mf.f_choice = LDAP_FILTER_EQUALITY;
1550 mf.f_av_desc = slap_schema.si_ad_entryUUID;
1551 mf.f_next = fop.ors_filter;
1553 fop.ors_filter = ⁡
1555 cb.sc_response = playlog_cb;
1556 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
1558 for ( i=ndel; i<num; i++ ) {
1559 if ( uuids[i].bv_len == 0 ) continue;
1561 mf.f_av_value = uuids[i];
1562 cb.sc_private = NULL;
1564 frs.sr_nentries = 0;
1565 rc = fop.o_bd->be_search( &fop, &frs );
1567 /* If entry was not found, add to delete list */
1568 if ( !cb.sc_private ) {
1569 uuids[ndel++] = uuids[i];
1572 fop.o_bd->bd_info = (BackendInfo *)on;
1575 struct berval cookie;
1577 if ( delcsn[0].bv_len ) {
1578 slap_compose_sync_cookie( op, &cookie, delcsn, srs->sr_state.rid,
1579 srs->sr_state.sid );
1582 Debug( LDAP_DEBUG_SYNC, "syncprov_playlog: cookie=%s\n", cookie.bv_val, 0, 0 );
1584 uuids[ndel].bv_val = NULL;
1585 syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET,
1586 delcsn[0].bv_len ? &cookie : NULL, 0, uuids, 1 );
1587 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
1589 op->o_tmpfree( uuids, op->o_tmpmemctx );
1593 syncprov_op_response( Operation *op, SlapReply *rs )
1595 opcookie *opc = op->o_callback->sc_private;
1596 slap_overinst *on = opc->son;
1597 syncprov_info_t *si = on->on_bi.bi_private;
1600 if ( rs->sr_err == LDAP_SUCCESS )
1602 struct berval maxcsn = BER_BVNULL;
1603 char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
1604 int do_check = 0, have_psearches;
1606 /* Update our context CSN */
1608 ldap_pvt_thread_rdwr_wlock( &si->si_csn_rwlock );
1609 slap_get_commit_csn( op, &maxcsn );
1610 if ( BER_BVISNULL( &maxcsn ) && SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1611 /* syncrepl queues the CSN values in the db where
1612 * it is configured , not where the changes are made.
1613 * So look for a value in the glue db if we didn't
1614 * find any in this db.
1616 BackendDB *be = op->o_bd;
1617 op->o_bd = select_backend( &be->be_nsuffix[0], 1);
1618 slap_get_commit_csn( op, &maxcsn );
1621 if ( !BER_BVISNULL( &maxcsn ) ) {
1623 strcpy( cbuf, maxcsn.bv_val );
1624 sid = slap_parse_csn_sid( &maxcsn );
1625 for ( i=0; i<si->si_numcsns; i++ ) {
1626 if ( sid == si->si_sids[i] ) {
1627 if ( ber_bvcmp( &maxcsn, &si->si_ctxcsn[i] ) > 0 ) {
1628 ber_bvreplace( &si->si_ctxcsn[i], &maxcsn );
1633 /* It's a new SID for us */
1634 if ( i == si->si_numcsns ) {
1635 value_add_one( &si->si_ctxcsn, &maxcsn );
1637 si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
1639 si->si_sids[i] = sid;
1642 /* internal ops that aren't meant to be replicated */
1643 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1644 return SLAP_CB_CONTINUE;
1647 /* Don't do any processing for consumer contextCSN updates */
1648 if ( SLAP_SYNC_SHADOW( op->o_bd ) &&
1649 op->o_msgid == SLAP_SYNC_UPDATE_MSGID ) {
1650 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1651 return SLAP_CB_CONTINUE;
1655 if ( si->si_chkops || si->si_chktime ) {
1656 if ( si->si_chkops && si->si_numops >= si->si_chkops ) {
1660 if ( si->si_chktime &&
1661 (op->o_time - si->si_chklast >= si->si_chktime )) {
1662 if ( si->si_chklast ) {
1664 si->si_chklast = op->o_time;
1670 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1673 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1674 syncprov_checkpoint( op, rs, on );
1675 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1678 opc->sctxcsn.bv_len = maxcsn.bv_len;
1679 opc->sctxcsn.bv_val = cbuf;
1681 /* Handle any persistent searches */
1682 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1683 have_psearches = ( si->si_ops != NULL );
1684 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1685 if ( have_psearches ) {
1688 case LDAP_REQ_MODIFY:
1689 case LDAP_REQ_MODRDN:
1690 case LDAP_REQ_EXTENDED:
1691 syncprov_matchops( op, opc, 0 );
1693 case LDAP_REQ_DELETE:
1694 /* for each match in opc->smatches:
1697 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1698 if ( sm->sm_op->s_op->o_abandon )
1700 syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_DELETE );
1706 /* Add any log records */
1707 if ( si->si_logs && op->o_tag != LDAP_REQ_ADD ) {
1708 syncprov_add_slog( op );
1712 return SLAP_CB_CONTINUE;
1715 /* We don't use a subentry to store the context CSN any more.
1716 * We expose the current context CSN as an operational attribute
1717 * of the suffix entry.
1720 syncprov_op_compare( Operation *op, SlapReply *rs )
1722 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1723 syncprov_info_t *si = on->on_bi.bi_private;
1724 int rc = SLAP_CB_CONTINUE;
1726 if ( dn_match( &op->o_req_ndn, op->o_bd->be_nsuffix ) &&
1727 op->oq_compare.rs_ava->aa_desc == slap_schema.si_ad_contextCSN )
1732 e.e_name = op->o_bd->be_suffix[0];
1733 e.e_nname = op->o_bd->be_nsuffix[0];
1736 a.a_desc = slap_schema.si_ad_contextCSN;
1738 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1740 a.a_vals = si->si_ctxcsn;
1741 a.a_nvals = a.a_vals;
1743 rs->sr_err = access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc,
1744 &op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL );
1745 if ( ! rs->sr_err ) {
1746 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1747 goto return_results;
1750 if ( get_assert( op ) &&
1751 ( test_filter( op, &e, get_assertion( op ) ) != LDAP_COMPARE_TRUE ) )
1753 rs->sr_err = LDAP_ASSERTION_FAILED;
1754 goto return_results;
1758 rs->sr_err = LDAP_COMPARE_FALSE;
1760 if ( attr_valfind( &a,
1761 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
1762 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
1763 &op->oq_compare.rs_ava->aa_value, NULL, op->o_tmpmemctx ) == 0 )
1765 rs->sr_err = LDAP_COMPARE_TRUE;
1770 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1772 send_ldap_result( op, rs );
1774 if( rs->sr_err == LDAP_COMPARE_FALSE || rs->sr_err == LDAP_COMPARE_TRUE ) {
1775 rs->sr_err = LDAP_SUCCESS;
1784 syncprov_op_mod( Operation *op, SlapReply *rs )
1786 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1787 syncprov_info_t *si = on->on_bi.bi_private;
1790 int have_psearches, cbsize;
1792 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1793 have_psearches = ( si->si_ops != NULL );
1794 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1796 cbsize = sizeof(slap_callback) + sizeof(opcookie) +
1797 (have_psearches ? sizeof(modinst) : 0 );
1799 cb = op->o_tmpcalloc(1, cbsize, op->o_tmpmemctx);
1800 opc = (opcookie *)(cb+1);
1802 cb->sc_response = syncprov_op_response;
1803 cb->sc_cleanup = syncprov_op_cleanup;
1804 cb->sc_private = opc;
1805 cb->sc_next = op->o_callback;
1806 op->o_callback = cb;
1808 /* If there are active persistent searches, lock this operation.
1809 * See seqmod.c for the locking logic on its own.
1811 if ( have_psearches ) {
1812 modtarget *mt, mtdummy;
1815 mi = (modinst *)(opc+1);
1818 /* See if we're already modifying this entry... */
1820 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1821 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
1823 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1824 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1825 mt->mt_tail->mi_next = mi;
1827 /* wait for this op to get to head of list */
1828 while ( mt->mt_mods != mi ) {
1829 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1830 /* FIXME: if dynamic config can delete overlays or
1831 * databases we'll have to check for cleanup here.
1832 * Currently it's not an issue because there are
1833 * no dynamic config deletes...
1835 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
1836 ldap_pvt_thread_yield();
1837 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1839 /* clean up if the caller is giving up */
1840 if ( op->o_abandon ) {
1842 for ( m2 = mt->mt_mods; m2->mi_next != mi;
1844 m2->mi_next = mi->mi_next;
1845 if ( mt->mt_tail == mi ) mt->mt_tail = m2;
1846 op->o_tmpfree( cb, op->o_tmpmemctx );
1847 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1848 return SLAPD_ABANDON;
1851 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1853 /* Record that we're modifying this entry now */
1854 mt = ch_malloc( sizeof(modtarget) );
1857 mt->mt_op = mi->mi_op;
1858 ldap_pvt_thread_mutex_init( &mt->mt_mutex );
1859 avl_insert( &si->si_mods, mt, sp_avl_cmp, avl_dup_error );
1860 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1864 if (( have_psearches || si->si_logs ) && op->o_tag != LDAP_REQ_ADD )
1865 syncprov_matchops( op, opc, 1 );
1867 return SLAP_CB_CONTINUE;
1871 syncprov_op_extended( Operation *op, SlapReply *rs )
1873 if ( exop_is_write( op ))
1874 return syncprov_op_mod( op, rs );
1876 return SLAP_CB_CONTINUE;
1879 typedef struct searchstate {
1880 slap_overinst *ss_on;
1882 BerVarray ss_ctxcsn;
1885 #define SS_PRESENT 0x01
1886 #define SS_CHANGED 0x02
1891 syncprov_search_cleanup( Operation *op, SlapReply *rs )
1893 if ( rs->sr_ctrls ) {
1894 op->o_tmpfree( rs->sr_ctrls[0], op->o_tmpmemctx );
1895 op->o_tmpfree( rs->sr_ctrls, op->o_tmpmemctx );
1896 rs->sr_ctrls = NULL;
1901 typedef struct SyncOperationBuffer {
1905 AttributeName sob_extra; /* not always present */
1906 /* Further data allocated here */
1907 } SyncOperationBuffer;
1910 syncprov_detach_op( Operation *op, syncops *so, slap_overinst *on )
1912 SyncOperationBuffer *sopbuf2;
1917 GroupAssertion *g1, *g2;
1919 /* count the search attrs */
1920 for (i=0; op->ors_attrs && !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
1921 alen += op->ors_attrs[i].an_name.bv_len + 1;
1923 /* Make a new copy of the operation */
1924 size = offsetof( SyncOperationBuffer, sob_extra ) +
1925 (i ? ( (i+1) * sizeof(AttributeName) + alen) : 0) +
1926 op->o_req_dn.bv_len + 1 +
1927 op->o_req_ndn.bv_len + 1 +
1928 op->o_ndn.bv_len + 1 +
1929 so->s_filterstr.bv_len + 1;
1930 sopbuf2 = ch_calloc( 1, size );
1931 op2 = &sopbuf2->sob_op;
1932 op2->o_hdr = &sopbuf2->sob_hdr;
1933 LDAP_SLIST_FIRST(&op2->o_extra) = &sopbuf2->sob_oe;
1935 /* Copy the fields we care about explicitly, leave the rest alone */
1936 *op2->o_hdr = *op->o_hdr;
1937 op2->o_tag = op->o_tag;
1938 op2->o_time = op->o_time;
1939 op2->o_bd = on->on_info->oi_origdb;
1940 op2->o_request = op->o_request;
1941 LDAP_SLIST_FIRST(&op2->o_extra)->oe_key = on;
1942 LDAP_SLIST_NEXT(LDAP_SLIST_FIRST(&op2->o_extra), oe_next) = NULL;
1944 ptr = (char *) sopbuf2 + offsetof( SyncOperationBuffer, sob_extra );
1946 op2->ors_attrs = (AttributeName *) ptr;
1947 ptr = (char *) &op2->ors_attrs[i+1];
1948 for (i=0; !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
1949 op2->ors_attrs[i] = op->ors_attrs[i];
1950 op2->ors_attrs[i].an_name.bv_val = ptr;
1951 ptr = lutil_strcopy( ptr, op->ors_attrs[i].an_name.bv_val ) + 1;
1953 BER_BVZERO( &op2->ors_attrs[i].an_name );
1956 op2->o_authz = op->o_authz;
1957 op2->o_ndn.bv_val = ptr;
1958 ptr = lutil_strcopy(ptr, op->o_ndn.bv_val) + 1;
1959 op2->o_dn = op2->o_ndn;
1960 op2->o_req_dn.bv_len = op->o_req_dn.bv_len;
1961 op2->o_req_dn.bv_val = ptr;
1962 ptr = lutil_strcopy(ptr, op->o_req_dn.bv_val) + 1;
1963 op2->o_req_ndn.bv_len = op->o_req_ndn.bv_len;
1964 op2->o_req_ndn.bv_val = ptr;
1965 ptr = lutil_strcopy(ptr, op->o_req_ndn.bv_val) + 1;
1966 op2->ors_filterstr.bv_val = ptr;
1967 strcpy( ptr, so->s_filterstr.bv_val );
1968 op2->ors_filterstr.bv_len = so->s_filterstr.bv_len;
1970 /* Skip the AND/GE clause that we stuck on in front */
1971 if ( so->s_flags & PS_FIX_FILTER ) {
1972 op2->ors_filter = op->ors_filter->f_and->f_next;
1973 so->s_flags ^= PS_FIX_FILTER;
1975 op2->ors_filter = op->ors_filter;
1977 op2->ors_filter = filter_dup( op2->ors_filter, NULL );
1980 /* Copy any cached group ACLs individually */
1981 op2->o_groups = NULL;
1982 for ( g1=op->o_groups; g1; g1=g1->ga_next ) {
1983 g2 = ch_malloc( sizeof(GroupAssertion) + g1->ga_len );
1985 strcpy( g2->ga_ndn, g1->ga_ndn );
1986 g2->ga_next = op2->o_groups;
1989 /* Don't allow any further group caching */
1990 op2->o_do_not_cache = 1;
1992 /* Add op2 to conn so abandon will find us */
1993 op->o_conn->c_n_ops_executing++;
1994 op->o_conn->c_n_ops_completed--;
1995 LDAP_STAILQ_INSERT_TAIL( &op->o_conn->c_ops, op2, o_next );
1996 so->s_flags |= PS_IS_DETACHED;
1998 /* Prevent anyone else from trying to send a result for this op */
2003 syncprov_search_response( Operation *op, SlapReply *rs )
2005 searchstate *ss = op->o_callback->sc_private;
2006 slap_overinst *on = ss->ss_on;
2007 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2008 sync_control *srs = op->o_controls[slap_cids.sc_LDAPsync];
2010 if ( rs->sr_type == REP_SEARCH || rs->sr_type == REP_SEARCHREF ) {
2012 /* If we got a referral without a referral object, there's
2013 * something missing that we cannot replicate. Just ignore it.
2014 * The consumer will abort because we didn't send the expected
2017 if ( !rs->sr_entry ) {
2018 assert( rs->sr_entry != NULL );
2019 Debug( LDAP_DEBUG_ANY, "bogus referral in context\n",0,0,0 );
2020 return SLAP_CB_CONTINUE;
2022 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryCSN );
2023 if ( a == NULL && rs->sr_operational_attrs != NULL ) {
2024 a = attr_find( rs->sr_operational_attrs, slap_schema.si_ad_entryCSN );
2028 sid = slap_parse_csn_sid( &a->a_nvals[0] );
2030 /* Don't send changed entries back to the originator */
2031 if ( sid == srs->sr_state.sid && srs->sr_state.numcsns ) {
2032 Debug( LDAP_DEBUG_SYNC,
2033 "Entry %s changed by peer, ignored\n",
2034 rs->sr_entry->e_name.bv_val, 0, 0 );
2035 return LDAP_SUCCESS;
2038 /* If not a persistent search */
2040 /* Make sure entry is less than the snapshot'd contextCSN */
2041 for ( i=0; i<ss->ss_numcsns; i++ ) {
2042 if ( sid == ss->ss_sids[i] && ber_bvcmp( &a->a_nvals[0],
2043 &ss->ss_ctxcsn[i] ) > 0 ) {
2044 Debug( LDAP_DEBUG_SYNC,
2045 "Entry %s CSN %s greater than snapshot %s\n",
2046 rs->sr_entry->e_name.bv_val,
2047 a->a_nvals[0].bv_val,
2048 ss->ss_ctxcsn[i].bv_val );
2049 return LDAP_SUCCESS;
2054 /* Don't send old entries twice */
2055 if ( srs->sr_state.ctxcsn ) {
2056 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2057 if ( sid == srs->sr_state.sids[i] &&
2058 ber_bvcmp( &a->a_nvals[0],
2059 &srs->sr_state.ctxcsn[i] )<= 0 ) {
2060 Debug( LDAP_DEBUG_SYNC,
2061 "Entry %s CSN %s older or equal to ctx %s\n",
2062 rs->sr_entry->e_name.bv_val,
2063 a->a_nvals[0].bv_val,
2064 srs->sr_state.ctxcsn[i].bv_val );
2065 return LDAP_SUCCESS;
2070 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2072 rs->sr_ctrls[1] = NULL;
2073 /* If we're in delta-sync mode, always send a cookie */
2074 if ( si->si_nopres && si->si_usehint && a ) {
2075 struct berval cookie;
2076 slap_compose_sync_cookie( op, &cookie, a->a_nvals, srs->sr_state.rid, srs->sr_state.sid );
2077 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2078 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 1, &cookie );
2080 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2081 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 0, NULL );
2083 } else if ( rs->sr_type == REP_RESULT && rs->sr_err == LDAP_SUCCESS ) {
2084 struct berval cookie;
2086 if ( ss->ss_flags & SS_CHANGED ) {
2087 slap_compose_sync_cookie( op, &cookie, ss->ss_ctxcsn,
2088 srs->sr_state.rid, srs->sr_state.sid );
2090 Debug( LDAP_DEBUG_SYNC, "syncprov_search_response: cookie=%s\n", cookie.bv_val, 0, 0 );
2093 /* Is this a regular refresh?
2094 * Note: refresh never gets here if there were no changes
2097 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2099 rs->sr_ctrls[1] = NULL;
2100 rs->sr_err = syncprov_done_ctrl( op, rs, rs->sr_ctrls,
2101 0, 1, &cookie, ( ss->ss_flags & SS_PRESENT ) ? LDAP_SYNC_REFRESH_PRESENTS :
2102 LDAP_SYNC_REFRESH_DELETES );
2103 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2105 /* It's RefreshAndPersist, transition to Persist phase */
2106 syncprov_sendinfo( op, rs, ( ss->ss_flags & SS_PRESENT ) ?
2107 LDAP_TAG_SYNC_REFRESH_PRESENT : LDAP_TAG_SYNC_REFRESH_DELETE,
2108 ( ss->ss_flags & SS_CHANGED ) ? &cookie : NULL,
2110 if ( ss->ss_flags & SS_CHANGED )
2111 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2113 /* Detach this Op from frontend control */
2114 ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex );
2115 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
2117 /* But not if this connection was closed along the way */
2118 if ( op->o_abandon ) {
2119 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2120 ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
2121 /* syncprov_ab_cleanup will free this syncop */
2122 return SLAPD_ABANDON;
2125 /* Turn off the refreshing flag */
2126 ss->ss_so->s_flags ^= PS_IS_REFRESHING;
2128 syncprov_detach_op( op, ss->ss_so, on );
2130 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2132 /* If there are queued responses, fire them off */
2133 if ( ss->ss_so->s_res )
2134 syncprov_qstart( ss->ss_so );
2136 ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
2138 return LDAP_SUCCESS;
2142 return SLAP_CB_CONTINUE;
2146 syncprov_op_search( Operation *op, SlapReply *rs )
2148 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2149 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2151 int gotstate = 0, changed = 0, do_present = 0;
2152 syncops *sop = NULL;
2156 int i, *sids, numcsns;
2157 struct berval mincsn;
2159 if ( !(op->o_sync_mode & SLAP_SYNC_REFRESH) ) return SLAP_CB_CONTINUE;
2161 if ( op->ors_deref & LDAP_DEREF_SEARCHING ) {
2162 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR, "illegal value for derefAliases" );
2166 srs = op->o_controls[slap_cids.sc_LDAPsync];
2167 op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
2169 /* If this is a persistent search, set it up right away */
2170 if ( op->o_sync_mode & SLAP_SYNC_PERSIST ) {
2180 so.s_flags = PS_IS_REFRESHING | PS_FIND_BASE;
2181 /* syncprov_findbase expects to be called as a callback... */
2182 sc.sc_private = &opc;
2184 ldap_pvt_thread_mutex_init( &so.s_mutex );
2185 cb = op->o_callback;
2186 op->o_callback = ≻
2187 rs->sr_err = syncprov_findbase( op, &fc );
2188 op->o_callback = cb;
2189 ldap_pvt_thread_mutex_destroy( &so.s_mutex );
2191 if ( rs->sr_err != LDAP_SUCCESS ) {
2192 send_ldap_result( op, rs );
2195 sop = ch_malloc( sizeof( syncops ));
2197 ldap_pvt_thread_mutex_init( &sop->s_mutex );
2198 sop->s_rid = srs->sr_state.rid;
2199 sop->s_sid = srs->sr_state.sid;
2202 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2203 sop->s_next = si->si_ops;
2205 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2208 /* snapshot the ctxcsn */
2209 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2210 numcsns = si->si_numcsns;
2212 ber_bvarray_dup_x( &ctxcsn, si->si_ctxcsn, op->o_tmpmemctx );
2213 sids = op->o_tmpalloc( numcsns * sizeof(int), op->o_tmpmemctx );
2214 for ( i=0; i<numcsns; i++ )
2215 sids[i] = si->si_sids[i];
2220 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2222 /* If we have a cookie, handle the PRESENT lookups */
2223 if ( srs->sr_state.ctxcsn ) {
2227 /* If we don't have any CSN of our own yet, pretend nothing
2233 if ( !si->si_nopres )
2234 do_present = SS_PRESENT;
2236 /* If there are SIDs we don't recognize in the cookie, drop them */
2237 for (i=0; i<srs->sr_state.numcsns; ) {
2238 for (j=0; j<numcsns; j++) {
2239 if ( srs->sr_state.sids[i] == sids[j] ) {
2244 if ( j == numcsns ) {
2245 struct berval tmp = srs->sr_state.ctxcsn[i];
2246 j = srs->sr_state.numcsns - 1;
2247 srs->sr_state.ctxcsn[i] = srs->sr_state.ctxcsn[j];
2249 srs->sr_state.ctxcsn[j] = tmp;
2250 srs->sr_state.numcsns = j;
2251 srs->sr_state.sids[i] = srs->sr_state.sids[j];
2257 /* Find the smallest CSN */
2258 mincsn = srs->sr_state.ctxcsn[0];
2259 for ( i=1; i<srs->sr_state.numcsns; i++ ) {
2260 if ( ber_bvcmp( &mincsn, &srs->sr_state.ctxcsn[i] ) > 0 )
2261 mincsn = srs->sr_state.ctxcsn[i];
2264 /* If nothing has changed, shortcut it */
2265 if ( srs->sr_state.numcsns == numcsns ) {
2267 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2268 for ( j=0; j<numcsns; j++ ) {
2269 if ( srs->sr_state.sids[i] != sids[j] )
2271 if ( !bvmatch( &srs->sr_state.ctxcsn[i], &ctxcsn[j] ))
2272 changed = SS_CHANGED;
2280 no_change: if ( !(op->o_sync_mode & SLAP_SYNC_PERSIST) ) {
2281 LDAPControl *ctrls[2];
2285 syncprov_done_ctrl( op, rs, ctrls, 0, 0,
2286 NULL, LDAP_SYNC_REFRESH_DELETES );
2287 rs->sr_ctrls = ctrls;
2288 rs->sr_err = LDAP_SUCCESS;
2289 send_ldap_result( op, rs );
2290 rs->sr_ctrls = NULL;
2296 /* consumer doesn't have the right number of CSNs */
2297 changed = SS_CHANGED;
2299 /* Do we have a sessionlog for this search? */
2302 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
2303 /* Are there any log entries, and is the consumer state
2304 * present in the session log?
2306 if ( sl->sl_num > 0 && ber_bvcmp( &mincsn, &sl->sl_mincsn ) >= 0 ) {
2308 /* mutex is unlocked in playlog */
2309 syncprov_playlog( op, rs, sl, srs, ctxcsn, numcsns, sids );
2311 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
2314 /* Is the CSN still present in the database? */
2315 if ( syncprov_findcsn( op, FIND_CSN ) != LDAP_SUCCESS ) {
2316 /* No, so a reload is required */
2317 /* the 2.2 consumer doesn't send this hint */
2318 if ( si->si_usehint && srs->sr_rhint == 0 ) {
2320 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2322 op->o_tmpfree( sids, op->o_tmpmemctx );
2323 send_ldap_error( op, rs, LDAP_SYNC_REFRESH_REQUIRED, "sync cookie is stale" );
2328 /* If changed and doing Present lookup, send Present UUIDs */
2329 if ( do_present && syncprov_findcsn( op, FIND_PRESENT ) !=
2332 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2334 op->o_tmpfree( sids, op->o_tmpmemctx );
2335 send_ldap_result( op, rs );
2340 /* No consumer state, assume something has changed */
2341 changed = SS_CHANGED;
2345 /* Append CSN range to search filter, save original filter
2346 * for persistent search evaluation
2349 sop->s_filterstr= op->ors_filterstr;
2352 /* If something changed, find the changes */
2353 if ( gotstate && changed ) {
2354 Filter *fand, *fava;
2356 fand = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2357 fand->f_choice = LDAP_FILTER_AND;
2358 fand->f_next = NULL;
2359 fava = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2361 fava->f_choice = LDAP_FILTER_GE;
2362 fava->f_ava = op->o_tmpalloc( sizeof(AttributeAssertion), op->o_tmpmemctx );
2363 fava->f_ava->aa_desc = slap_schema.si_ad_entryCSN;
2364 #ifdef LDAP_COMP_MATCH
2365 fava->f_ava->aa_cf = NULL;
2367 ber_dupbv_x( &fava->f_ava->aa_value, &mincsn, op->o_tmpmemctx );
2368 fava->f_next = op->ors_filter;
2369 op->ors_filter = fand;
2370 filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2372 sop->s_flags |= PS_FIX_FILTER;
2375 /* Let our callback add needed info to returned entries */
2376 cb = op->o_tmpcalloc(1, sizeof(slap_callback)+sizeof(searchstate), op->o_tmpmemctx);
2377 ss = (searchstate *)(cb+1);
2380 ss->ss_flags = do_present | changed;
2381 ss->ss_ctxcsn = ctxcsn;
2382 ss->ss_numcsns = numcsns;
2384 cb->sc_response = syncprov_search_response;
2385 cb->sc_cleanup = syncprov_search_cleanup;
2386 cb->sc_private = ss;
2387 cb->sc_next = op->o_callback;
2388 op->o_callback = cb;
2390 /* If this is a persistent search and no changes were reported during
2391 * the refresh phase, just invoke the response callback to transition
2392 * us into persist phase
2395 rs->sr_err = LDAP_SUCCESS;
2396 rs->sr_nentries = 0;
2397 send_ldap_result( op, rs );
2400 return SLAP_CB_CONTINUE;
2404 syncprov_operational(
2408 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2409 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2411 /* This prevents generating unnecessarily; frontend will strip
2412 * any statically stored copy.
2414 if ( op->o_sync != SLAP_CONTROL_NONE )
2415 return SLAP_CB_CONTINUE;
2417 if ( rs->sr_entry &&
2418 dn_match( &rs->sr_entry->e_nname, op->o_bd->be_nsuffix )) {
2420 if ( SLAP_OPATTRS( rs->sr_attr_flags ) ||
2421 ad_inlist( slap_schema.si_ad_contextCSN, rs->sr_attrs )) {
2422 Attribute *a, **ap = NULL;
2424 for ( a=rs->sr_entry->e_attrs; a; a=a->a_next ) {
2425 if ( a->a_desc == slap_schema.si_ad_contextCSN )
2429 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2430 if ( si->si_ctxcsn ) {
2432 for ( ap = &rs->sr_operational_attrs; *ap;
2433 ap=&(*ap)->a_next );
2435 a = attr_alloc( slap_schema.si_ad_contextCSN );
2440 if ( !(rs->sr_flags & REP_ENTRY_MODIFIABLE) ) {
2441 Entry *e = entry_dup( rs->sr_entry );
2442 if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
2443 overlay_entry_release_ov( op, rs->sr_entry, 0, on );
2444 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
2445 } else if ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) {
2446 entry_free( rs->sr_entry );
2450 REP_ENTRY_MODIFIABLE|REP_ENTRY_MUSTBEFREED;
2451 a = attr_find( rs->sr_entry->e_attrs,
2452 slap_schema.si_ad_contextCSN );
2454 if ( a->a_nvals != a->a_vals ) {
2455 ber_bvarray_free( a->a_nvals );
2458 ber_bvarray_free( a->a_vals );
2462 attr_valadd( a, si->si_ctxcsn, si->si_ctxcsn, si->si_numcsns );
2464 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2467 return SLAP_CB_CONTINUE;
2477 static ConfigDriver sp_cf_gen;
2479 static ConfigTable spcfg[] = {
2480 { "syncprov-checkpoint", "ops> <minutes", 3, 3, 0, ARG_MAGIC|SP_CHKPT,
2481 sp_cf_gen, "( OLcfgOvAt:1.1 NAME 'olcSpCheckpoint' "
2482 "DESC 'ContextCSN checkpoint interval in ops and minutes' "
2483 "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
2484 { "syncprov-sessionlog", "ops", 2, 2, 0, ARG_INT|ARG_MAGIC|SP_SESSL,
2485 sp_cf_gen, "( OLcfgOvAt:1.2 NAME 'olcSpSessionlog' "
2486 "DESC 'Session log size in ops' "
2487 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
2488 { "syncprov-nopresent", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_NOPRES,
2489 sp_cf_gen, "( OLcfgOvAt:1.3 NAME 'olcSpNoPresent' "
2490 "DESC 'Omit Present phase processing' "
2491 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2492 { "syncprov-reloadhint", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_USEHINT,
2493 sp_cf_gen, "( OLcfgOvAt:1.4 NAME 'olcSpReloadHint' "
2494 "DESC 'Observe Reload Hint in Request control' "
2495 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2496 { NULL, NULL, 0, 0, 0, ARG_IGNORED }
2499 static ConfigOCs spocs[] = {
2500 { "( OLcfgOvOc:1.1 "
2501 "NAME 'olcSyncProvConfig' "
2502 "DESC 'SyncRepl Provider configuration' "
2503 "SUP olcOverlayConfig "
2504 "MAY ( olcSpCheckpoint $ olcSpSessionlog $ olcSpNoPresent ) )",
2505 Cft_Overlay, spcfg },
2510 sp_cf_gen(ConfigArgs *c)
2512 slap_overinst *on = (slap_overinst *)c->bi;
2513 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2516 if ( c->op == SLAP_CONFIG_EMIT ) {
2517 switch ( c->type ) {
2519 if ( si->si_chkops || si->si_chktime ) {
2521 bv.bv_len = snprintf( c->cr_msg, sizeof( c->cr_msg ),
2522 "%d %d", si->si_chkops, si->si_chktime );
2523 if ( bv.bv_len < 0 || bv.bv_len >= sizeof( c->cr_msg ) ) {
2526 bv.bv_val = c->cr_msg;
2527 value_add_one( &c->rvalue_vals, &bv );
2534 if ( si->si_logs ) {
2535 c->value_int = si->si_logs->sl_size;
2541 if ( si->si_nopres ) {
2548 if ( si->si_usehint ) {
2556 } else if ( c->op == LDAP_MOD_DELETE ) {
2557 switch ( c->type ) {
2564 si->si_logs->sl_size = 0;
2566 rc = LDAP_NO_SUCH_ATTRIBUTE;
2569 if ( si->si_nopres )
2572 rc = LDAP_NO_SUCH_ATTRIBUTE;
2575 if ( si->si_usehint )
2578 rc = LDAP_NO_SUCH_ATTRIBUTE;
2583 switch ( c->type ) {
2585 if ( lutil_atoi( &si->si_chkops, c->argv[1] ) != 0 ) {
2586 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint ops # \"%s\"",
2587 c->argv[0], c->argv[1] );
2588 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2589 "%s: %s\n", c->log, c->cr_msg, 0 );
2590 return ARG_BAD_CONF;
2592 if ( si->si_chkops <= 0 ) {
2593 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint ops # \"%d\"",
2594 c->argv[0], si->si_chkops );
2595 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2596 "%s: %s\n", c->log, c->cr_msg, 0 );
2597 return ARG_BAD_CONF;
2599 if ( lutil_atoi( &si->si_chktime, c->argv[2] ) != 0 ) {
2600 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint time \"%s\"",
2601 c->argv[0], c->argv[1] );
2602 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2603 "%s: %s\n", c->log, c->cr_msg, 0 );
2604 return ARG_BAD_CONF;
2606 if ( si->si_chktime <= 0 ) {
2607 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint time \"%d\"",
2608 c->argv[0], si->si_chkops );
2609 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2610 "%s: %s\n", c->log, c->cr_msg, 0 );
2611 return ARG_BAD_CONF;
2613 si->si_chktime *= 60;
2617 int size = c->value_int;
2620 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s size %d is negative",
2622 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2623 "%s: %s\n", c->log, c->cr_msg, 0 );
2624 return ARG_BAD_CONF;
2628 sl = ch_malloc( sizeof( sessionlog ) + LDAP_LUTIL_CSNSTR_BUFSIZE );
2629 sl->sl_mincsn.bv_val = (char *)(sl+1);
2630 sl->sl_mincsn.bv_len = 0;
2632 sl->sl_head = sl->sl_tail = NULL;
2633 ldap_pvt_thread_mutex_init( &sl->sl_mutex );
2640 si->si_nopres = c->value_int;
2643 si->si_usehint = c->value_int;
2649 /* ITS#3456 we cannot run this search on the main thread, must use a
2650 * child thread in order to insure we have a big enough stack.
2657 syncprov_findcsn( ptr, FIND_MAXCSN );
2661 /* Read any existing contextCSN from the underlying db.
2662 * Then search for any entries newer than that. If no value exists,
2663 * just generate it. Cache whatever result.
2671 slap_overinst *on = (slap_overinst *) be->bd_info;
2672 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2674 Connection conn = { 0 };
2675 OperationBuffer opbuf;
2680 void *thrctx = NULL;
2682 if ( !SLAP_LASTMOD( be )) {
2683 Debug( LDAP_DEBUG_ANY,
2684 "syncprov_db_open: invalid config, lastmod must be enabled\n", 0, 0, 0 );
2688 if ( slapMode & SLAP_TOOL_MODE ) {
2692 rc = overlay_register_control( be, LDAP_CONTROL_SYNC );
2697 thrctx = ldap_pvt_thread_pool_context();
2698 connection_fake_init( &conn, &opbuf, thrctx );
2701 op->o_dn = be->be_rootdn;
2702 op->o_ndn = be->be_rootndn;
2704 rc = overlay_entry_get_ov( op, be->be_nsuffix, NULL,
2705 slap_schema.si_ad_contextCSN, 0, &e, on );
2708 ldap_pvt_thread_t tid;
2710 a = attr_find( e->e_attrs, slap_schema.si_ad_contextCSN );
2712 ber_bvarray_dup_x( &si->si_ctxcsn, a->a_vals, NULL );
2713 si->si_numcsns = a->a_numvals;
2714 si->si_sids = slap_parse_csn_sids( si->si_ctxcsn, a->a_numvals, NULL );
2716 overlay_entry_release_ov( op, e, 0, on );
2717 if ( si->si_ctxcsn ) {
2718 op->o_req_dn = be->be_suffix[0];
2719 op->o_req_ndn = be->be_nsuffix[0];
2720 op->ors_scope = LDAP_SCOPE_SUBTREE;
2721 ldap_pvt_thread_create( &tid, 0, syncprov_db_otask, op );
2722 ldap_pvt_thread_join( tid, NULL );
2726 /* Didn't find a contextCSN, should we generate one? */
2727 if ( !si->si_ctxcsn ) {
2728 char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
2731 if ( SLAP_SYNC_SHADOW( op->o_bd )) {
2732 /* If we're also a consumer, then don't generate anything.
2733 * Wait for our provider to send it to us, or for a local
2734 * modify if we have multimaster.
2738 csn.bv_val = csnbuf;
2739 csn.bv_len = sizeof( csnbuf );
2740 slap_get_csn( op, &csn, 0 );
2741 value_add_one( &si->si_ctxcsn, &csn );
2743 si->si_sids = ch_malloc( sizeof(int) );
2744 si->si_sids[0] = slap_serverID;
2746 /* make sure we do a checkpoint on close */
2751 op->o_bd->bd_info = (BackendInfo *)on;
2755 /* Write the current contextCSN into the underlying db.
2763 slap_overinst *on = (slap_overinst *) be->bd_info;
2764 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2766 if ( slapMode & SLAP_TOOL_MODE ) {
2769 if ( si->si_numops ) {
2770 Connection conn = {0};
2771 OperationBuffer opbuf;
2773 SlapReply rs = {REP_RESULT};
2776 thrctx = ldap_pvt_thread_pool_context();
2777 connection_fake_init( &conn, &opbuf, thrctx );
2780 op->o_dn = be->be_rootdn;
2781 op->o_ndn = be->be_rootndn;
2782 syncprov_checkpoint( op, &rs, on );
2794 slap_overinst *on = (slap_overinst *)be->bd_info;
2795 syncprov_info_t *si;
2797 if ( SLAP_ISGLOBALOVERLAY( be ) ) {
2798 Debug( LDAP_DEBUG_ANY,
2799 "syncprov must be instantiated within a database.\n",
2804 si = ch_calloc(1, sizeof(syncprov_info_t));
2805 on->on_bi.bi_private = si;
2806 ldap_pvt_thread_rdwr_init( &si->si_csn_rwlock );
2807 ldap_pvt_thread_mutex_init( &si->si_ops_mutex );
2808 ldap_pvt_thread_mutex_init( &si->si_mods_mutex );
2810 csn_anlist[0].an_desc = slap_schema.si_ad_entryCSN;
2811 csn_anlist[0].an_name = slap_schema.si_ad_entryCSN->ad_cname;
2812 csn_anlist[1].an_desc = slap_schema.si_ad_entryUUID;
2813 csn_anlist[1].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2815 uuid_anlist[0].an_desc = slap_schema.si_ad_entryUUID;
2816 uuid_anlist[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2822 syncprov_db_destroy(
2827 slap_overinst *on = (slap_overinst *)be->bd_info;
2828 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2831 if ( si->si_logs ) {
2832 slog_entry *se = si->si_logs->sl_head;
2835 slog_entry *se_next = se->se_next;
2840 ch_free( si->si_logs );
2842 if ( si->si_ctxcsn )
2843 ber_bvarray_free( si->si_ctxcsn );
2845 ch_free( si->si_sids );
2846 ldap_pvt_thread_mutex_destroy( &si->si_mods_mutex );
2847 ldap_pvt_thread_mutex_destroy( &si->si_ops_mutex );
2848 ldap_pvt_thread_rdwr_destroy( &si->si_csn_rwlock );
2855 static int syncprov_parseCtrl (
2861 BerElementBuffer berbuf;
2862 BerElement *ber = (BerElement *)&berbuf;
2865 struct berval cookie = BER_BVNULL;
2869 if ( op->o_sync != SLAP_CONTROL_NONE ) {
2870 rs->sr_text = "Sync control specified multiple times";
2871 return LDAP_PROTOCOL_ERROR;
2874 if ( op->o_pagedresults != SLAP_CONTROL_NONE ) {
2875 rs->sr_text = "Sync control specified with pagedResults control";
2876 return LDAP_PROTOCOL_ERROR;
2879 if ( BER_BVISNULL( &ctrl->ldctl_value ) ) {
2880 rs->sr_text = "Sync control value is absent";
2881 return LDAP_PROTOCOL_ERROR;
2884 if ( BER_BVISEMPTY( &ctrl->ldctl_value ) ) {
2885 rs->sr_text = "Sync control value is empty";
2886 return LDAP_PROTOCOL_ERROR;
2889 /* Parse the control value
2890 * syncRequestValue ::= SEQUENCE {
2895 * refreshAndPersist (3)
2897 * cookie syncCookie OPTIONAL
2901 ber_init2( ber, &ctrl->ldctl_value, 0 );
2903 if ( (tag = ber_scanf( ber, "{i" /*}*/, &mode )) == LBER_ERROR ) {
2904 rs->sr_text = "Sync control : mode decoding error";
2905 return LDAP_PROTOCOL_ERROR;
2909 case LDAP_SYNC_REFRESH_ONLY:
2910 mode = SLAP_SYNC_REFRESH;
2912 case LDAP_SYNC_REFRESH_AND_PERSIST:
2913 mode = SLAP_SYNC_REFRESH_AND_PERSIST;
2916 rs->sr_text = "Sync control : unknown update mode";
2917 return LDAP_PROTOCOL_ERROR;
2920 tag = ber_peek_tag( ber, &len );
2922 if ( tag == LDAP_TAG_SYNC_COOKIE ) {
2923 if (( ber_scanf( ber, /*{*/ "m", &cookie )) == LBER_ERROR ) {
2924 rs->sr_text = "Sync control : cookie decoding error";
2925 return LDAP_PROTOCOL_ERROR;
2927 tag = ber_peek_tag( ber, &len );
2929 if ( tag == LDAP_TAG_RELOAD_HINT ) {
2930 if (( ber_scanf( ber, /*{*/ "b", &rhint )) == LBER_ERROR ) {
2931 rs->sr_text = "Sync control : rhint decoding error";
2932 return LDAP_PROTOCOL_ERROR;
2935 if (( ber_scanf( ber, /*{*/ "}")) == LBER_ERROR ) {
2936 rs->sr_text = "Sync control : decoding error";
2937 return LDAP_PROTOCOL_ERROR;
2939 sr = op->o_tmpcalloc( 1, sizeof(struct sync_control), op->o_tmpmemctx );
2940 sr->sr_rhint = rhint;
2941 if (!BER_BVISNULL(&cookie)) {
2942 ber_dupbv_x( &sr->sr_state.octet_str, &cookie, op->o_tmpmemctx );
2943 /* If parse fails, pretend no cookie was sent */
2944 if ( slap_parse_sync_cookie( &sr->sr_state, op->o_tmpmemctx ) ||
2945 sr->sr_state.rid == -1 ) {
2946 if ( sr->sr_state.ctxcsn ) {
2947 ber_bvarray_free_x( sr->sr_state.ctxcsn, op->o_tmpmemctx );
2948 sr->sr_state.ctxcsn = NULL;
2950 sr->sr_state.numcsns = 0;
2954 op->o_controls[slap_cids.sc_LDAPsync] = sr;
2956 op->o_sync = ctrl->ldctl_iscritical
2957 ? SLAP_CONTROL_CRITICAL
2958 : SLAP_CONTROL_NONCRITICAL;
2960 op->o_sync_mode |= mode; /* o_sync_mode shares o_sync */
2962 return LDAP_SUCCESS;
2965 /* This overlay is set up for dynamic loading via moduleload. For static
2966 * configuration, you'll need to arrange for the slap_overinst to be
2967 * initialized and registered by some other function inside slapd.
2970 static slap_overinst syncprov;
2973 syncprov_initialize()
2977 rc = register_supported_control( LDAP_CONTROL_SYNC,
2978 SLAP_CTRL_SEARCH, NULL,
2979 syncprov_parseCtrl, &slap_cids.sc_LDAPsync );
2980 if ( rc != LDAP_SUCCESS ) {
2981 Debug( LDAP_DEBUG_ANY,
2982 "syncprov_init: Failed to register control %d\n", rc, 0, 0 );
2986 syncprov.on_bi.bi_type = "syncprov";
2987 syncprov.on_bi.bi_db_init = syncprov_db_init;
2988 syncprov.on_bi.bi_db_destroy = syncprov_db_destroy;
2989 syncprov.on_bi.bi_db_open = syncprov_db_open;
2990 syncprov.on_bi.bi_db_close = syncprov_db_close;
2992 syncprov.on_bi.bi_op_abandon = syncprov_op_abandon;
2993 syncprov.on_bi.bi_op_cancel = syncprov_op_abandon;
2995 syncprov.on_bi.bi_op_add = syncprov_op_mod;
2996 syncprov.on_bi.bi_op_compare = syncprov_op_compare;
2997 syncprov.on_bi.bi_op_delete = syncprov_op_mod;
2998 syncprov.on_bi.bi_op_modify = syncprov_op_mod;
2999 syncprov.on_bi.bi_op_modrdn = syncprov_op_mod;
3000 syncprov.on_bi.bi_op_search = syncprov_op_search;
3001 syncprov.on_bi.bi_extended = syncprov_op_extended;
3002 syncprov.on_bi.bi_operational = syncprov_operational;
3004 syncprov.on_bi.bi_cf_ocs = spocs;
3006 generic_filter.f_desc = slap_schema.si_ad_objectClass;
3008 rc = config_register_schema( spcfg, spocs );
3009 if ( rc ) return rc;
3011 return overlay_register( &syncprov );
3014 #if SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC
3016 init_module( int argc, char *argv[] )
3018 return syncprov_initialize();
3020 #endif /* SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC */
3022 #endif /* defined(SLAPD_OVER_SYNCPROV) */