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 maxcsn->bv_len = a->a_vals[0].bv_len;
502 strcpy( maxcsn->bv_val, a->a_vals[0].bv_val );
509 findcsn_cb( Operation *op, SlapReply *rs )
511 slap_callback *sc = op->o_callback;
513 /* We just want to know that at least one exists, so it's OK if
514 * we exceed the unchecked limit.
516 if ( rs->sr_err == LDAP_ADMINLIMIT_EXCEEDED ||
517 (rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS )) {
518 sc->sc_private = (void *)1;
523 /* Build a list of entryUUIDs for sending in a SyncID set */
527 typedef struct fpres_cookie {
534 findpres_cb( Operation *op, SlapReply *rs )
536 slap_callback *sc = op->o_callback;
537 fpres_cookie *pc = sc->sc_private;
539 int ret = SLAP_CB_CONTINUE;
541 switch ( rs->sr_type ) {
543 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
545 pc->uuids[pc->num].bv_val = pc->last;
546 AC_MEMCPY( pc->uuids[pc->num].bv_val, a->a_nvals[0].bv_val,
547 pc->uuids[pc->num].bv_len );
549 pc->last = pc->uuids[pc->num].bv_val;
550 pc->uuids[pc->num].bv_val = NULL;
553 if ( pc->num != SLAP_SYNCUUID_SET_SIZE )
559 ret = syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET, NULL,
561 pc->uuids[pc->num].bv_val = pc->last;
563 pc->last = pc->uuids[0].bv_val;
573 syncprov_findcsn( Operation *op, find_csn_t mode )
575 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
576 syncprov_info_t *si = on->on_bi.bi_private;
578 slap_callback cb = {0};
580 SlapReply frs = { REP_RESULT };
581 char buf[LDAP_LUTIL_CSNSTR_BUFSIZE + STRLENOF("(entryCSN<=)")];
582 char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
583 struct berval maxcsn;
585 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
586 fpres_cookie pcookie;
587 sync_control *srs = NULL;
588 struct slap_limits_set fc_limits;
589 int i, rc = LDAP_SUCCESS, findcsn_retry = 1;
592 if ( mode != FIND_MAXCSN ) {
593 srs = op->o_controls[slap_cids.sc_LDAPsync];
597 fop.o_sync_mode &= SLAP_CONTROL_MASK; /* turn off sync_mode */
598 /* We want pure entries, not referrals */
599 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
602 cf.f_av_desc = slap_schema.si_ad_entryCSN;
603 BER_BVZERO( &cf.f_av_value );
606 fop.o_callback = &cb;
607 fop.ors_limit = NULL;
608 fop.ors_tlimit = SLAP_NO_LIMIT;
609 fop.ors_filter = &cf;
610 fop.ors_filterstr.bv_val = buf;
615 cf.f_choice = LDAP_FILTER_GE;
616 cf.f_av_value = si->si_ctxcsn[0];
617 /* If there are multiple CSNs, use the largest */
618 for ( i=1; i<si->si_numcsns; i++) {
619 if ( ber_bvcmp( &cf.f_av_value, &si->si_ctxcsn[i] ) < 0 ) {
620 cf.f_av_value = si->si_ctxcsn[i];
624 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
625 "(entryCSN>=%s)", cf.f_av_value.bv_val );
626 if ( fop.ors_filterstr.bv_len < 0 || fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
629 fop.ors_attrsonly = 0;
630 fop.ors_attrs = csn_anlist;
631 fop.ors_slimit = SLAP_NO_LIMIT;
632 cb.sc_private = &maxcsn;
633 cb.sc_response = findmax_cb;
634 strcpy( cbuf, cf.f_av_value.bv_val );
635 maxcsn.bv_val = cbuf;
636 maxcsn.bv_len = cf.f_av_value.bv_len;
639 if ( BER_BVISEMPTY( &cf.f_av_value )) {
640 cf.f_av_value = srs->sr_state.ctxcsn[0];
641 /* If there are multiple CSNs, use the smallest */
642 for ( i=1; i<srs->sr_state.numcsns; i++ ) {
643 if ( ber_bvcmp( &cf.f_av_value, &srs->sr_state.ctxcsn[i] )
645 cf.f_av_value = srs->sr_state.ctxcsn[i];
649 /* Look for exact match the first time */
650 if ( findcsn_retry ) {
651 cf.f_choice = LDAP_FILTER_EQUALITY;
652 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
653 "(entryCSN=%s)", cf.f_av_value.bv_val );
654 /* On retry, look for <= */
656 cf.f_choice = LDAP_FILTER_LE;
657 fop.ors_limit = &fc_limits;
658 memset( &fc_limits, 0, sizeof( fc_limits ));
659 fc_limits.lms_s_unchecked = 1;
660 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
661 "(entryCSN<=%s)", cf.f_av_value.bv_val );
663 if ( fop.ors_filterstr.bv_len < 0 || fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
666 fop.ors_attrsonly = 1;
667 fop.ors_attrs = slap_anlist_no_attrs;
669 cb.sc_private = NULL;
670 cb.sc_response = findcsn_cb;
673 fop.ors_filter = op->ors_filter;
674 fop.ors_filterstr = op->ors_filterstr;
675 fop.ors_attrsonly = 0;
676 fop.ors_attrs = uuid_anlist;
677 fop.ors_slimit = SLAP_NO_LIMIT;
678 cb.sc_private = &pcookie;
679 cb.sc_response = findpres_cb;
682 /* preallocate storage for a full set */
683 pcookie.uuids = op->o_tmpalloc( (SLAP_SYNCUUID_SET_SIZE+1) *
684 sizeof(struct berval) + SLAP_SYNCUUID_SET_SIZE * UUID_LEN,
686 pcookie.last = (char *)(pcookie.uuids + SLAP_SYNCUUID_SET_SIZE+1);
687 pcookie.uuids[0].bv_val = pcookie.last;
688 pcookie.uuids[0].bv_len = UUID_LEN;
689 for (i=1; i<SLAP_SYNCUUID_SET_SIZE; i++) {
690 pcookie.uuids[i].bv_val = pcookie.uuids[i-1].bv_val + UUID_LEN;
691 pcookie.uuids[i].bv_len = UUID_LEN;
696 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
697 fop.o_bd->be_search( &fop, &frs );
698 fop.o_bd->bd_info = (BackendInfo *)on;
702 if ( ber_bvcmp( &si->si_ctxcsn[maxid], &maxcsn )) {
703 ber_bvreplace( &si->si_ctxcsn[maxid], &maxcsn );
704 si->si_numops++; /* ensure a checkpoint */
708 /* If matching CSN was not found, invalidate the context. */
709 if ( !cb.sc_private ) {
710 /* If we didn't find an exact match, then try for <= */
711 if ( findcsn_retry ) {
715 rc = LDAP_NO_SUCH_OBJECT;
719 op->o_tmpfree( pcookie.uuids, op->o_tmpmemctx );
727 syncprov_free_syncop( syncops *so )
729 syncres *sr, *srnext;
730 GroupAssertion *ga, *gnext;
732 ldap_pvt_thread_mutex_lock( &so->s_mutex );
733 if ( --so->s_inuse > 0 ) {
734 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
738 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
739 if ( ldap_pvt_runqueue_isrunning( &slapd_rq, so->s_qtask ) )
740 ldap_pvt_runqueue_stoptask( &slapd_rq, so->s_qtask );
741 ldap_pvt_runqueue_remove( &slapd_rq, so->s_qtask );
742 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
744 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
745 if ( so->s_flags & PS_IS_DETACHED ) {
746 filter_free( so->s_op->ors_filter );
747 for ( ga = so->s_op->o_groups; ga; ga=gnext ) {
753 ch_free( so->s_base.bv_val );
754 for ( sr=so->s_res; sr; sr=srnext ) {
758 ldap_pvt_thread_mutex_destroy( &so->s_mutex );
762 /* Send a persistent search response */
764 syncprov_sendresp( Operation *op, opcookie *opc, syncops *so,
765 Entry **e, int mode )
767 slap_overinst *on = opc->son;
769 SlapReply rs = { REP_SEARCH };
770 LDAPControl *ctrls[2];
771 struct berval cookie, csns[2];
773 Attribute a_uuid = {0};
775 if ( so->s_op->o_abandon )
776 return SLAPD_ABANDON;
779 csns[0] = opc->sctxcsn;
780 BER_BVZERO( &csns[1] );
781 slap_compose_sync_cookie( op, &cookie, csns, so->s_rid, so->s_sid );
783 Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: cookie=%s\n", cookie.bv_val, 0, 0 );
785 e_uuid.e_attrs = &a_uuid;
786 a_uuid.a_desc = slap_schema.si_ad_entryUUID;
787 a_uuid.a_nvals = &opc->suuid;
788 rs.sr_err = syncprov_state_ctrl( op, &rs, &e_uuid,
789 mode, ctrls, 0, 1, &cookie );
790 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
793 op->o_bd->bd_info = (BackendInfo *)on->on_info;
797 if ( rs.sr_entry->e_private )
798 rs.sr_flags = REP_ENTRY_MUSTRELEASE;
799 if ( opc->sreference ) {
800 rs.sr_ref = get_entry_referrals( op, rs.sr_entry );
801 rs.sr_err = send_search_reference( op, &rs );
802 ber_bvarray_free( rs.sr_ref );
808 case LDAP_SYNC_MODIFY:
810 if ( rs.sr_entry->e_private )
811 rs.sr_flags = REP_ENTRY_MUSTRELEASE;
812 rs.sr_attrs = op->ors_attrs;
813 rs.sr_err = send_search_entry( op, &rs );
817 case LDAP_SYNC_DELETE:
818 e_uuid.e_attrs = NULL;
819 e_uuid.e_name = opc->sdn;
820 e_uuid.e_nname = opc->sndn;
821 rs.sr_entry = &e_uuid;
822 if ( opc->sreference ) {
823 struct berval bv = BER_BVNULL;
825 rs.sr_err = send_search_reference( op, &rs );
827 rs.sr_err = send_search_entry( op, &rs );
833 /* In case someone else freed it already? */
835 op->o_tmpfree( rs.sr_ctrls[0], op->o_tmpmemctx );
842 /* Play back queued responses */
844 syncprov_qplay( Operation *op, struct re_s *rtask )
846 syncops *so = rtask->arg;
847 slap_overinst *on = LDAP_SLIST_FIRST(&so->s_op->o_extra)->oe_key;
856 ldap_pvt_thread_mutex_lock( &so->s_mutex );
859 so->s_res = sr->s_next;
861 so->s_restail = NULL;
862 /* Exit loop with mutex held */
863 if ( !sr || so->s_op->o_abandon )
865 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
868 opc.sndn = sr->s_ndn;
869 opc.suuid = sr->s_uuid;
870 opc.sctxcsn = sr->s_csn;
871 opc.sreference = sr->s_isreference;
874 if ( sr->s_mode != LDAP_SYNC_DELETE ) {
875 rc = overlay_entry_get_ov( op, &opc.sndn, NULL, NULL, 0, &e, on );
877 Debug( LDAP_DEBUG_SYNC, "syncprov_qplay: failed to get %s, "
878 "error (%d), ignoring...\n", opc.sndn.bv_val, rc, 0 );
884 rc = syncprov_sendresp( op, &opc, so, &e, sr->s_mode );
887 overlay_entry_release_ov( op, e, 0, on );
893 /* Exit loop with mutex held */
894 ldap_pvt_thread_mutex_lock( &so->s_mutex );
899 /* wait until we get explicitly scheduled again */
900 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
901 ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
903 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 1 );
905 /* bail out on any error */
906 ldap_pvt_runqueue_remove( &slapd_rq, rtask );
908 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
909 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
913 /* runqueue task for playing back queued responses */
915 syncprov_qtask( void *ctx, void *arg )
917 struct re_s *rtask = arg;
918 syncops *so = rtask->arg;
919 OperationBuffer opbuf;
926 op->o_hdr = &opbuf.ob_hdr;
927 op->o_controls = opbuf.ob_controls;
928 memset( op->o_controls, 0, sizeof(opbuf.ob_controls) );
930 *op->o_hdr = *so->s_op->o_hdr;
932 op->o_tmpmemctx = slap_sl_mem_create(SLAP_SLAB_SIZE, SLAP_SLAB_STACK, ctx, 1);
933 op->o_tmpmfuncs = &slap_sl_mfuncs;
934 op->o_threadctx = ctx;
936 /* syncprov_qplay expects a fake db */
937 be = *so->s_op->o_bd;
938 be.be_flags |= SLAP_DBFLAG_OVERLAY;
940 LDAP_SLIST_FIRST(&op->o_extra) = NULL;
941 op->o_callback = NULL;
943 rc = syncprov_qplay( op, rtask );
945 /* decrement use count... */
946 syncprov_free_syncop( so );
948 #if 0 /* FIXME: connection_close isn't exported from slapd.
952 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
953 if ( connection_state_closing( op->o_conn )) {
954 connection_close( op->o_conn );
956 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
962 /* Start the task to play back queued psearch responses */
964 syncprov_qstart( syncops *so )
967 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
968 if ( !so->s_qtask ) {
969 so->s_qtask = ldap_pvt_runqueue_insert( &slapd_rq, RUNQ_INTERVAL,
970 syncprov_qtask, so, "syncprov_qtask",
971 so->s_op->o_conn->c_peer_name.bv_val );
975 if (!ldap_pvt_runqueue_isrunning( &slapd_rq, so->s_qtask ) &&
976 !so->s_qtask->next_sched.tv_sec ) {
977 so->s_qtask->interval.tv_sec = 0;
978 ldap_pvt_runqueue_resched( &slapd_rq, so->s_qtask, 0 );
979 so->s_qtask->interval.tv_sec = RUNQ_INTERVAL;
984 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
986 slap_wake_listener();
989 /* Queue a persistent search response */
991 syncprov_qresp( opcookie *opc, syncops *so, int mode )
996 /* Don't send changes back to their originator */
997 sid = slap_parse_csn_sid( &opc->sctxcsn );
998 if ( sid >= 0 && sid == so->s_sid )
1001 srsize = sizeof(syncres) + opc->suuid.bv_len + 1 +
1002 opc->sdn.bv_len + 1 + opc->sndn.bv_len + 1;
1003 if ( opc->sctxcsn.bv_len )
1004 srsize += opc->sctxcsn.bv_len + 1;
1005 sr = ch_malloc( srsize );
1007 sr->s_dn.bv_val = (char *)(sr + 1);
1008 sr->s_dn.bv_len = opc->sdn.bv_len;
1010 sr->s_isreference = opc->sreference;
1011 sr->s_ndn.bv_val = lutil_strcopy( sr->s_dn.bv_val,
1012 opc->sdn.bv_val ) + 1;
1013 sr->s_ndn.bv_len = opc->sndn.bv_len;
1014 sr->s_uuid.bv_val = lutil_strcopy( sr->s_ndn.bv_val,
1015 opc->sndn.bv_val ) + 1;
1016 sr->s_uuid.bv_len = opc->suuid.bv_len;
1017 AC_MEMCPY( sr->s_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1018 if ( opc->sctxcsn.bv_len ) {
1019 sr->s_csn.bv_val = sr->s_uuid.bv_val + sr->s_uuid.bv_len + 1;
1020 strcpy( sr->s_csn.bv_val, opc->sctxcsn.bv_val );
1022 sr->s_csn.bv_val = NULL;
1024 sr->s_csn.bv_len = opc->sctxcsn.bv_len;
1026 ldap_pvt_thread_mutex_lock( &so->s_mutex );
1030 so->s_restail->s_next = sr;
1034 /* If the base of the psearch was modified, check it next time round */
1035 if ( so->s_flags & PS_WROTE_BASE ) {
1036 so->s_flags ^= PS_WROTE_BASE;
1037 so->s_flags |= PS_FIND_BASE;
1039 if ( so->s_flags & PS_IS_DETACHED ) {
1040 syncprov_qstart( so );
1042 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
1043 return LDAP_SUCCESS;
1047 syncprov_drop_psearch( syncops *so, int lock )
1049 if ( so->s_flags & PS_IS_DETACHED ) {
1051 ldap_pvt_thread_mutex_lock( &so->s_op->o_conn->c_mutex );
1052 so->s_op->o_conn->c_n_ops_executing--;
1053 so->s_op->o_conn->c_n_ops_completed++;
1054 LDAP_STAILQ_REMOVE( &so->s_op->o_conn->c_ops, so->s_op, Operation,
1057 ldap_pvt_thread_mutex_unlock( &so->s_op->o_conn->c_mutex );
1059 syncprov_free_syncop( so );
1065 syncprov_ab_cleanup( Operation *op, SlapReply *rs )
1067 slap_callback *sc = op->o_callback;
1068 op->o_callback = sc->sc_next;
1069 syncprov_drop_psearch( op->o_callback->sc_private, 0 );
1070 op->o_tmpfree( sc, op->o_tmpmemctx );
1075 syncprov_op_abandon( Operation *op, SlapReply *rs )
1077 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1078 syncprov_info_t *si = on->on_bi.bi_private;
1079 syncops *so, *soprev;
1081 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1082 for ( so=si->si_ops, soprev = (syncops *)&si->si_ops; so;
1083 soprev=so, so=so->s_next ) {
1084 if ( so->s_op->o_connid == op->o_connid &&
1085 so->s_op->o_msgid == op->orn_msgid ) {
1086 so->s_op->o_abandon = 1;
1087 soprev->s_next = so->s_next;
1091 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1093 /* Is this really a Cancel exop? */
1094 if ( op->o_tag != LDAP_REQ_ABANDON ) {
1095 so->s_op->o_cancel = SLAP_CANCEL_ACK;
1096 rs->sr_err = LDAP_CANCELLED;
1097 send_ldap_result( so->s_op, rs );
1098 if ( so->s_flags & PS_IS_DETACHED ) {
1100 cb = op->o_tmpcalloc( 1, sizeof(slap_callback), op->o_tmpmemctx );
1101 cb->sc_cleanup = syncprov_ab_cleanup;
1102 cb->sc_next = op->o_callback;
1103 cb->sc_private = so;
1104 return SLAP_CB_CONTINUE;
1107 syncprov_drop_psearch( so, 0 );
1109 return SLAP_CB_CONTINUE;
1112 /* Find which persistent searches are affected by this operation */
1114 syncprov_matchops( Operation *op, opcookie *opc, int saveit )
1116 slap_overinst *on = opc->son;
1117 syncprov_info_t *si = on->on_bi.bi_private;
1120 syncops *ss, *sprev, *snext;
1124 struct berval newdn;
1126 BackendDB *b0 = op->o_bd, db;
1128 fc.fdn = &op->o_req_ndn;
1129 /* compute new DN */
1130 if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1132 if ( op->orr_nnewSup ) pdn = *op->orr_nnewSup;
1133 else dnParent( fc.fdn, &pdn );
1134 build_new_dn( &newdn, &pdn, &op->orr_nnewrdn, op->o_tmpmemctx );
1138 if ( op->o_tag != LDAP_REQ_ADD ) {
1139 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1143 rc = overlay_entry_get_ov( op, fc.fdn, NULL, NULL, 0, &e, on );
1144 /* If we're sending responses now, make a copy and unlock the DB */
1145 if ( e && !saveit ) {
1146 Entry *e2 = entry_dup( e );
1147 overlay_entry_release_ov( op, e, 0, on );
1158 if ( saveit || op->o_tag == LDAP_REQ_ADD ) {
1159 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1160 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1161 opc->sreference = is_entry_referral( e );
1162 a = attr_find( e->e_attrs, slap_schema.si_ad_entryUUID );
1164 ber_dupbv_x( &opc->suuid, &a->a_nvals[0], op->o_tmpmemctx );
1165 } else if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1166 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1167 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1168 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1169 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1172 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1173 for (ss = si->si_ops, sprev = (syncops *)&si->si_ops; ss;
1174 sprev = ss, ss=snext)
1181 if ( ss->s_op->o_abandon )
1189 /* If the base of the search is missing, signal a refresh */
1190 rc = syncprov_findbase( op, &fc );
1191 if ( rc != LDAP_SUCCESS ) {
1192 SlapReply rs = {REP_RESULT};
1193 send_ldap_error( ss->s_op, &rs, LDAP_SYNC_REFRESH_REQUIRED,
1194 "search base has changed" );
1195 sprev->s_next = snext;
1196 syncprov_drop_psearch( ss, 1 );
1202 /* If we're sending results now, look for this op in old matches */
1206 /* Did we modify the search base? */
1207 if ( dn_match( &op->o_req_ndn, &ss->s_base )) {
1208 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1209 ss->s_flags |= PS_WROTE_BASE;
1210 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1213 for ( sm=opc->smatches, old=(syncmatches *)&opc->smatches; sm;
1214 old=sm, sm=sm->sm_next ) {
1215 if ( sm->sm_op == ss ) {
1217 old->sm_next = sm->sm_next;
1218 op->o_tmpfree( sm, op->o_tmpmemctx );
1226 op2.o_hdr = op->o_hdr;
1227 op2.o_extra = op->o_extra;
1230 /* check if current o_req_dn is in scope and matches filter */
1231 if ( fc.fscope && test_filter( &op2, e, ss->s_op->ors_filter ) ==
1232 LDAP_COMPARE_TRUE ) {
1234 sm = op->o_tmpalloc( sizeof(syncmatches), op->o_tmpmemctx );
1235 sm->sm_next = opc->smatches;
1237 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1239 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1242 /* if found send UPDATE else send ADD */
1243 syncprov_qresp( opc, ss,
1244 found ? LDAP_SYNC_MODIFY : LDAP_SYNC_ADD );
1246 } else if ( !saveit && found ) {
1248 syncprov_qresp( opc, ss, LDAP_SYNC_DELETE );
1251 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1253 if ( op->o_tag != LDAP_REQ_ADD && e ) {
1254 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1257 overlay_entry_release_ov( op, e, 0, on );
1261 op->o_tmpfree( fc.fdn->bv_val, op->o_tmpmemctx );
1267 syncprov_op_cleanup( Operation *op, SlapReply *rs )
1269 slap_callback *cb = op->o_callback;
1270 opcookie *opc = cb->sc_private;
1271 slap_overinst *on = opc->son;
1272 syncprov_info_t *si = on->on_bi.bi_private;
1273 syncmatches *sm, *snext;
1274 modtarget *mt, mtdummy;
1276 for (sm = opc->smatches; sm; sm=snext) {
1277 snext = sm->sm_next;
1278 syncprov_free_syncop( sm->sm_op );
1279 op->o_tmpfree( sm, op->o_tmpmemctx );
1282 /* Remove op from lock table */
1284 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1285 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
1287 modinst *mi = mt->mt_mods;
1289 /* If there are more, promote the next one */
1290 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1291 if ( mi->mi_next ) {
1292 mt->mt_mods = mi->mi_next;
1293 mt->mt_op = mt->mt_mods->mi_op;
1294 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1296 avl_delete( &si->si_mods, mt, sp_avl_cmp );
1297 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1298 ldap_pvt_thread_mutex_destroy( &mt->mt_mutex );
1302 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1303 if ( !BER_BVISNULL( &opc->suuid ))
1304 op->o_tmpfree( opc->suuid.bv_val, op->o_tmpmemctx );
1305 if ( !BER_BVISNULL( &opc->sndn ))
1306 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1307 if ( !BER_BVISNULL( &opc->sdn ))
1308 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1309 op->o_callback = cb->sc_next;
1310 op->o_tmpfree(cb, op->o_tmpmemctx);
1316 syncprov_checkpoint( Operation *op, SlapReply *rs, slap_overinst *on )
1318 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
1321 SlapReply rsm = { 0 };
1322 slap_callback cb = {0};
1325 mod.sml_numvals = si->si_numcsns;
1326 mod.sml_values = si->si_ctxcsn;
1327 mod.sml_nvalues = NULL;
1328 mod.sml_desc = slap_schema.si_ad_contextCSN;
1329 mod.sml_op = LDAP_MOD_REPLACE;
1331 mod.sml_next = NULL;
1333 cb.sc_response = slap_null_cb;
1335 opm.o_tag = LDAP_REQ_MODIFY;
1336 opm.o_callback = &cb;
1337 opm.orm_modlist = &mod;
1338 opm.orm_no_opattrs = 1;
1339 if ( SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1340 be = *on->on_info->oi_origdb;
1343 opm.o_req_dn = opm.o_bd->be_suffix[0];
1344 opm.o_req_ndn = opm.o_bd->be_nsuffix[0];
1345 opm.o_bd->bd_info = on->on_info->oi_orig;
1346 opm.o_managedsait = SLAP_CONTROL_NONCRITICAL;
1347 opm.o_no_schema_check = 1;
1348 opm.o_bd->be_modify( &opm, &rsm );
1349 if ( mod.sml_next != NULL ) {
1350 slap_mods_free( mod.sml_next, 1 );
1355 syncprov_add_slog( Operation *op )
1357 opcookie *opc = op->o_callback->sc_private;
1358 slap_overinst *on = opc->son;
1359 syncprov_info_t *si = on->on_bi.bi_private;
1365 /* Allocate a record. UUIDs are not NUL-terminated. */
1366 se = ch_malloc( sizeof( slog_entry ) + opc->suuid.bv_len +
1367 op->o_csn.bv_len + 1 );
1369 se->se_tag = op->o_tag;
1371 se->se_uuid.bv_val = (char *)(&se[1]);
1372 AC_MEMCPY( se->se_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1373 se->se_uuid.bv_len = opc->suuid.bv_len;
1375 se->se_csn.bv_val = se->se_uuid.bv_val + opc->suuid.bv_len;
1376 AC_MEMCPY( se->se_csn.bv_val, op->o_csn.bv_val, op->o_csn.bv_len );
1377 se->se_csn.bv_val[op->o_csn.bv_len] = '\0';
1378 se->se_csn.bv_len = op->o_csn.bv_len;
1379 se->se_sid = slap_parse_csn_sid( &se->se_csn );
1381 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1382 if ( sl->sl_head ) {
1383 sl->sl_tail->se_next = se;
1389 while ( sl->sl_num > sl->sl_size ) {
1391 sl->sl_head = se->se_next;
1392 strcpy( sl->sl_mincsn.bv_val, se->se_csn.bv_val );
1393 sl->sl_mincsn.bv_len = se->se_csn.bv_len;
1397 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1401 /* Just set a flag if we found the matching entry */
1403 playlog_cb( Operation *op, SlapReply *rs )
1405 if ( rs->sr_type == REP_SEARCH ) {
1406 op->o_callback->sc_private = (void *)1;
1411 /* enter with sl->sl_mutex locked, release before returning */
1413 syncprov_playlog( Operation *op, SlapReply *rs, sessionlog *sl,
1414 sync_control *srs, BerVarray ctxcsn, int numcsns, int *sids )
1416 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1418 int i, j, ndel, num, nmods, mmods;
1419 char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
1421 struct berval delcsn[2];
1423 if ( !sl->sl_num ) {
1424 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1432 uuids = op->o_tmpalloc( (num+1) * sizeof( struct berval ) +
1433 num * UUID_LEN, op->o_tmpmemctx );
1434 uuids[0].bv_val = (char *)(uuids + num + 1);
1436 delcsn[0].bv_len = 0;
1437 delcsn[0].bv_val = cbuf;
1438 BER_BVZERO(&delcsn[1]);
1440 /* Make a copy of the relevant UUIDs. Put the Deletes up front
1441 * and everything else at the end. Do this first so we can
1442 * unlock the list mutex.
1444 Debug( LDAP_DEBUG_SYNC, "srs csn %s\n",
1445 srs->sr_state.ctxcsn[0].bv_val, 0, 0 );
1446 for ( se=sl->sl_head; se; se=se->se_next ) {
1448 Debug( LDAP_DEBUG_SYNC, "log csn %s\n", se->se_csn.bv_val, 0, 0 );
1450 for ( k=0; k<srs->sr_state.numcsns; k++ ) {
1451 if ( se->se_sid == srs->sr_state.sids[k] ) {
1452 ndel = ber_bvcmp( &se->se_csn, &srs->sr_state.ctxcsn[k] );
1457 Debug( LDAP_DEBUG_SYNC, "cmp %d, too old\n", ndel, 0, 0 );
1461 for ( k=0; k<numcsns; k++ ) {
1462 if ( se->se_sid == sids[k] ) {
1463 ndel = ber_bvcmp( &se->se_csn, &ctxcsn[k] );
1468 Debug( LDAP_DEBUG_SYNC, "cmp %d, too new\n", ndel, 0, 0 );
1471 if ( se->se_tag == LDAP_REQ_DELETE ) {
1474 AC_MEMCPY( cbuf, se->se_csn.bv_val, se->se_csn.bv_len );
1475 delcsn[0].bv_len = se->se_csn.bv_len;
1476 delcsn[0].bv_val[delcsn[0].bv_len] = '\0';
1481 uuids[j].bv_val = uuids[0].bv_val + (j * UUID_LEN);
1482 AC_MEMCPY(uuids[j].bv_val, se->se_uuid.bv_val, UUID_LEN);
1483 uuids[j].bv_len = UUID_LEN;
1485 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1489 /* Zero out unused slots */
1490 for ( i=ndel; i < num - nmods; i++ )
1491 uuids[i].bv_len = 0;
1493 /* Mods must be validated to see if they belong in this delete set.
1497 /* Strip any duplicates */
1498 for ( i=0; i<nmods; i++ ) {
1499 for ( j=0; j<ndel; j++ ) {
1500 if ( bvmatch( &uuids[j], &uuids[num - 1 - i] )) {
1501 uuids[num - 1 - i].bv_len = 0;
1506 if ( uuids[num - 1 - i].bv_len == 0 ) continue;
1507 for ( j=0; j<i; j++ ) {
1508 if ( bvmatch( &uuids[num - 1 - j], &uuids[num - 1 - i] )) {
1509 uuids[num - 1 - i].bv_len = 0;
1518 SlapReply frs = { REP_RESULT };
1521 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
1522 slap_callback cb = {0};
1526 fop.o_sync_mode = 0;
1527 fop.o_callback = &cb;
1528 fop.ors_limit = NULL;
1529 fop.ors_tlimit = SLAP_NO_LIMIT;
1530 fop.ors_attrs = slap_anlist_all_attributes;
1531 fop.ors_attrsonly = 0;
1532 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
1534 af.f_choice = LDAP_FILTER_AND;
1537 mf.f_choice = LDAP_FILTER_EQUALITY;
1539 mf.f_av_desc = slap_schema.si_ad_entryUUID;
1540 mf.f_next = fop.ors_filter;
1542 fop.ors_filter = ⁡
1544 cb.sc_response = playlog_cb;
1545 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
1547 for ( i=ndel; i<num; i++ ) {
1548 if ( uuids[i].bv_len == 0 ) continue;
1550 mf.f_av_value = uuids[i];
1551 cb.sc_private = NULL;
1553 frs.sr_nentries = 0;
1554 rc = fop.o_bd->be_search( &fop, &frs );
1556 /* If entry was not found, add to delete list */
1557 if ( !cb.sc_private ) {
1558 uuids[ndel++] = uuids[i];
1561 fop.o_bd->bd_info = (BackendInfo *)on;
1564 struct berval cookie;
1566 if ( delcsn[0].bv_len ) {
1567 slap_compose_sync_cookie( op, &cookie, delcsn, srs->sr_state.rid,
1568 srs->sr_state.sid );
1571 Debug( LDAP_DEBUG_SYNC, "syncprov_playlog: cookie=%s\n", cookie.bv_val, 0, 0 );
1573 uuids[ndel].bv_val = NULL;
1574 syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET,
1575 delcsn[0].bv_len ? &cookie : NULL, 0, uuids, 1 );
1576 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
1578 op->o_tmpfree( uuids, op->o_tmpmemctx );
1582 syncprov_op_response( Operation *op, SlapReply *rs )
1584 opcookie *opc = op->o_callback->sc_private;
1585 slap_overinst *on = opc->son;
1586 syncprov_info_t *si = on->on_bi.bi_private;
1589 if ( rs->sr_err == LDAP_SUCCESS )
1591 struct berval maxcsn = BER_BVNULL;
1592 char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
1593 int do_check = 0, have_psearches;
1595 /* Update our context CSN */
1597 ldap_pvt_thread_rdwr_wlock( &si->si_csn_rwlock );
1598 slap_get_commit_csn( op, &maxcsn );
1599 if ( BER_BVISNULL( &maxcsn ) && SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1600 /* syncrepl queues the CSN values in the db where
1601 * it is configured , not where the changes are made.
1602 * So look for a value in the glue db if we didn't
1603 * find any in this db.
1605 BackendDB *be = op->o_bd;
1606 op->o_bd = select_backend( &be->be_nsuffix[0], 1);
1607 slap_get_commit_csn( op, &maxcsn );
1610 if ( !BER_BVISNULL( &maxcsn ) ) {
1612 strcpy( cbuf, maxcsn.bv_val );
1613 sid = slap_parse_csn_sid( &maxcsn );
1614 for ( i=0; i<si->si_numcsns; i++ ) {
1615 if ( sid == si->si_sids[i] ) {
1616 if ( ber_bvcmp( &maxcsn, &si->si_ctxcsn[i] ) > 0 ) {
1617 ber_bvreplace( &si->si_ctxcsn[i], &maxcsn );
1622 /* It's a new SID for us */
1623 if ( i == si->si_numcsns ) {
1624 value_add_one( &si->si_ctxcsn, &maxcsn );
1626 si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
1628 si->si_sids[i] = sid;
1631 /* internal ops that aren't meant to be replicated */
1632 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1633 return SLAP_CB_CONTINUE;
1636 /* Don't do any processing for consumer contextCSN updates */
1637 if ( SLAP_SYNC_SHADOW( op->o_bd ) &&
1638 op->o_msgid == SLAP_SYNC_UPDATE_MSGID ) {
1639 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1640 return SLAP_CB_CONTINUE;
1644 if ( si->si_chkops || si->si_chktime ) {
1645 if ( si->si_chkops && si->si_numops >= si->si_chkops ) {
1649 if ( si->si_chktime &&
1650 (op->o_time - si->si_chklast >= si->si_chktime )) {
1651 if ( si->si_chklast ) {
1653 si->si_chklast = op->o_time;
1659 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1662 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1663 syncprov_checkpoint( op, rs, on );
1664 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1667 opc->sctxcsn.bv_len = maxcsn.bv_len;
1668 opc->sctxcsn.bv_val = cbuf;
1670 /* Handle any persistent searches */
1671 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1672 have_psearches = ( si->si_ops != NULL );
1673 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1674 if ( have_psearches ) {
1677 case LDAP_REQ_MODIFY:
1678 case LDAP_REQ_MODRDN:
1679 case LDAP_REQ_EXTENDED:
1680 syncprov_matchops( op, opc, 0 );
1682 case LDAP_REQ_DELETE:
1683 /* for each match in opc->smatches:
1686 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1687 if ( sm->sm_op->s_op->o_abandon )
1689 syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_DELETE );
1695 /* Add any log records */
1696 if ( si->si_logs && op->o_tag != LDAP_REQ_ADD ) {
1697 syncprov_add_slog( op );
1701 return SLAP_CB_CONTINUE;
1704 /* We don't use a subentry to store the context CSN any more.
1705 * We expose the current context CSN as an operational attribute
1706 * of the suffix entry.
1709 syncprov_op_compare( Operation *op, SlapReply *rs )
1711 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1712 syncprov_info_t *si = on->on_bi.bi_private;
1713 int rc = SLAP_CB_CONTINUE;
1715 if ( dn_match( &op->o_req_ndn, op->o_bd->be_nsuffix ) &&
1716 op->oq_compare.rs_ava->aa_desc == slap_schema.si_ad_contextCSN )
1721 e.e_name = op->o_bd->be_suffix[0];
1722 e.e_nname = op->o_bd->be_nsuffix[0];
1725 a.a_desc = slap_schema.si_ad_contextCSN;
1727 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1729 a.a_vals = si->si_ctxcsn;
1730 a.a_nvals = a.a_vals;
1732 rs->sr_err = access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc,
1733 &op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL );
1734 if ( ! rs->sr_err ) {
1735 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1736 goto return_results;
1739 if ( get_assert( op ) &&
1740 ( test_filter( op, &e, get_assertion( op ) ) != LDAP_COMPARE_TRUE ) )
1742 rs->sr_err = LDAP_ASSERTION_FAILED;
1743 goto return_results;
1747 rs->sr_err = LDAP_COMPARE_FALSE;
1749 if ( attr_valfind( &a,
1750 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
1751 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
1752 &op->oq_compare.rs_ava->aa_value, NULL, op->o_tmpmemctx ) == 0 )
1754 rs->sr_err = LDAP_COMPARE_TRUE;
1759 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1761 send_ldap_result( op, rs );
1763 if( rs->sr_err == LDAP_COMPARE_FALSE || rs->sr_err == LDAP_COMPARE_TRUE ) {
1764 rs->sr_err = LDAP_SUCCESS;
1773 syncprov_op_mod( Operation *op, SlapReply *rs )
1775 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1776 syncprov_info_t *si = on->on_bi.bi_private;
1779 int have_psearches, cbsize;
1781 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1782 have_psearches = ( si->si_ops != NULL );
1783 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1785 cbsize = sizeof(slap_callback) + sizeof(opcookie) +
1786 (have_psearches ? sizeof(modinst) : 0 );
1788 cb = op->o_tmpcalloc(1, cbsize, op->o_tmpmemctx);
1789 opc = (opcookie *)(cb+1);
1791 cb->sc_response = syncprov_op_response;
1792 cb->sc_cleanup = syncprov_op_cleanup;
1793 cb->sc_private = opc;
1794 cb->sc_next = op->o_callback;
1795 op->o_callback = cb;
1797 /* If there are active persistent searches, lock this operation.
1798 * See seqmod.c for the locking logic on its own.
1800 if ( have_psearches ) {
1801 modtarget *mt, mtdummy;
1804 mi = (modinst *)(opc+1);
1807 /* See if we're already modifying this entry... */
1809 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1810 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
1812 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1813 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1814 mt->mt_tail->mi_next = mi;
1816 /* wait for this op to get to head of list */
1817 while ( mt->mt_mods != mi ) {
1818 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1819 /* FIXME: if dynamic config can delete overlays or
1820 * databases we'll have to check for cleanup here.
1821 * Currently it's not an issue because there are
1822 * no dynamic config deletes...
1824 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
1825 ldap_pvt_thread_yield();
1826 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1828 /* clean up if the caller is giving up */
1829 if ( op->o_abandon ) {
1831 for ( m2 = mt->mt_mods; m2->mi_next != mi;
1833 m2->mi_next = mi->mi_next;
1834 if ( mt->mt_tail == mi ) mt->mt_tail = m2;
1835 op->o_tmpfree( cb, op->o_tmpmemctx );
1836 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1837 return SLAPD_ABANDON;
1840 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1842 /* Record that we're modifying this entry now */
1843 mt = ch_malloc( sizeof(modtarget) );
1846 mt->mt_op = mi->mi_op;
1847 ldap_pvt_thread_mutex_init( &mt->mt_mutex );
1848 avl_insert( &si->si_mods, mt, sp_avl_cmp, avl_dup_error );
1849 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1853 if (( have_psearches || si->si_logs ) && op->o_tag != LDAP_REQ_ADD )
1854 syncprov_matchops( op, opc, 1 );
1856 return SLAP_CB_CONTINUE;
1860 syncprov_op_extended( Operation *op, SlapReply *rs )
1862 if ( exop_is_write( op ))
1863 return syncprov_op_mod( op, rs );
1865 return SLAP_CB_CONTINUE;
1868 typedef struct searchstate {
1869 slap_overinst *ss_on;
1871 BerVarray ss_ctxcsn;
1874 #define SS_PRESENT 0x01
1875 #define SS_CHANGED 0x02
1880 syncprov_search_cleanup( Operation *op, SlapReply *rs )
1882 if ( rs->sr_ctrls ) {
1883 op->o_tmpfree( rs->sr_ctrls[0], op->o_tmpmemctx );
1884 op->o_tmpfree( rs->sr_ctrls, op->o_tmpmemctx );
1885 rs->sr_ctrls = NULL;
1890 typedef struct SyncOperationBuffer {
1894 AttributeName sob_extra; /* not always present */
1895 /* Further data allocated here */
1896 } SyncOperationBuffer;
1899 syncprov_detach_op( Operation *op, syncops *so, slap_overinst *on )
1901 SyncOperationBuffer *sopbuf2;
1906 GroupAssertion *g1, *g2;
1908 /* count the search attrs */
1909 for (i=0; op->ors_attrs && !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
1910 alen += op->ors_attrs[i].an_name.bv_len + 1;
1912 /* Make a new copy of the operation */
1913 size = offsetof( SyncOperationBuffer, sob_extra ) +
1914 (i ? ( (i+1) * sizeof(AttributeName) + alen) : 0) +
1915 op->o_req_dn.bv_len + 1 +
1916 op->o_req_ndn.bv_len + 1 +
1917 op->o_ndn.bv_len + 1 +
1918 so->s_filterstr.bv_len + 1;
1919 sopbuf2 = ch_calloc( 1, size );
1920 op2 = &sopbuf2->sob_op;
1921 op2->o_hdr = &sopbuf2->sob_hdr;
1922 LDAP_SLIST_FIRST(&op2->o_extra) = &sopbuf2->sob_oe;
1924 /* Copy the fields we care about explicitly, leave the rest alone */
1925 *op2->o_hdr = *op->o_hdr;
1926 op2->o_tag = op->o_tag;
1927 op2->o_time = op->o_time;
1928 op2->o_bd = on->on_info->oi_origdb;
1929 op2->o_request = op->o_request;
1930 LDAP_SLIST_FIRST(&op2->o_extra)->oe_key = on;
1931 LDAP_SLIST_NEXT(LDAP_SLIST_FIRST(&op2->o_extra), oe_next) = NULL;
1933 ptr = (char *) sopbuf2 + offsetof( SyncOperationBuffer, sob_extra );
1935 op2->ors_attrs = (AttributeName *) ptr;
1936 ptr = (char *) &op2->ors_attrs[i+1];
1937 for (i=0; !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
1938 op2->ors_attrs[i] = op->ors_attrs[i];
1939 op2->ors_attrs[i].an_name.bv_val = ptr;
1940 ptr = lutil_strcopy( ptr, op->ors_attrs[i].an_name.bv_val ) + 1;
1942 BER_BVZERO( &op2->ors_attrs[i].an_name );
1945 op2->o_authz = op->o_authz;
1946 op2->o_ndn.bv_val = ptr;
1947 ptr = lutil_strcopy(ptr, op->o_ndn.bv_val) + 1;
1948 op2->o_dn = op2->o_ndn;
1949 op2->o_req_dn.bv_len = op->o_req_dn.bv_len;
1950 op2->o_req_dn.bv_val = ptr;
1951 ptr = lutil_strcopy(ptr, op->o_req_dn.bv_val) + 1;
1952 op2->o_req_ndn.bv_len = op->o_req_ndn.bv_len;
1953 op2->o_req_ndn.bv_val = ptr;
1954 ptr = lutil_strcopy(ptr, op->o_req_ndn.bv_val) + 1;
1955 op2->ors_filterstr.bv_val = ptr;
1956 strcpy( ptr, so->s_filterstr.bv_val );
1957 op2->ors_filterstr.bv_len = so->s_filterstr.bv_len;
1959 /* Skip the AND/GE clause that we stuck on in front */
1960 if ( so->s_flags & PS_FIX_FILTER ) {
1961 op2->ors_filter = op->ors_filter->f_and->f_next;
1962 so->s_flags ^= PS_FIX_FILTER;
1964 op2->ors_filter = op->ors_filter;
1966 op2->ors_filter = filter_dup( op2->ors_filter, NULL );
1969 /* Copy any cached group ACLs individually */
1970 op2->o_groups = NULL;
1971 for ( g1=op->o_groups; g1; g1=g1->ga_next ) {
1972 g2 = ch_malloc( sizeof(GroupAssertion) + g1->ga_len );
1974 strcpy( g2->ga_ndn, g1->ga_ndn );
1975 g2->ga_next = op2->o_groups;
1978 /* Don't allow any further group caching */
1979 op2->o_do_not_cache = 1;
1981 /* Add op2 to conn so abandon will find us */
1982 op->o_conn->c_n_ops_executing++;
1983 op->o_conn->c_n_ops_completed--;
1984 LDAP_STAILQ_INSERT_TAIL( &op->o_conn->c_ops, op2, o_next );
1985 so->s_flags |= PS_IS_DETACHED;
1987 /* Prevent anyone else from trying to send a result for this op */
1992 syncprov_search_response( Operation *op, SlapReply *rs )
1994 searchstate *ss = op->o_callback->sc_private;
1995 slap_overinst *on = ss->ss_on;
1996 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
1997 sync_control *srs = op->o_controls[slap_cids.sc_LDAPsync];
1999 if ( rs->sr_type == REP_SEARCH || rs->sr_type == REP_SEARCHREF ) {
2001 /* If we got a referral without a referral object, there's
2002 * something missing that we cannot replicate. Just ignore it.
2003 * The consumer will abort because we didn't send the expected
2006 if ( !rs->sr_entry ) {
2007 assert( rs->sr_entry != NULL );
2008 Debug( LDAP_DEBUG_ANY, "bogus referral in context\n",0,0,0 );
2009 return SLAP_CB_CONTINUE;
2011 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryCSN );
2012 if ( a == NULL && rs->sr_operational_attrs != NULL ) {
2013 a = attr_find( rs->sr_operational_attrs, slap_schema.si_ad_entryCSN );
2017 sid = slap_parse_csn_sid( &a->a_nvals[0] );
2019 /* Don't send changed entries back to the originator */
2020 if ( sid == srs->sr_state.sid && srs->sr_state.numcsns ) {
2021 Debug( LDAP_DEBUG_SYNC,
2022 "Entry %s changed by peer, ignored\n",
2023 rs->sr_entry->e_name.bv_val, 0, 0 );
2024 return LDAP_SUCCESS;
2027 /* If not a persistent search */
2029 /* Make sure entry is less than the snapshot'd contextCSN */
2030 for ( i=0; i<ss->ss_numcsns; i++ ) {
2031 if ( sid == ss->ss_sids[i] && ber_bvcmp( &a->a_nvals[0],
2032 &ss->ss_ctxcsn[i] ) > 0 ) {
2033 Debug( LDAP_DEBUG_SYNC,
2034 "Entry %s CSN %s greater than snapshot %s\n",
2035 rs->sr_entry->e_name.bv_val,
2036 a->a_nvals[0].bv_val,
2037 ss->ss_ctxcsn[i].bv_val );
2038 return LDAP_SUCCESS;
2043 /* Don't send old entries twice */
2044 if ( srs->sr_state.ctxcsn ) {
2045 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2046 if ( sid == srs->sr_state.sids[i] &&
2047 ber_bvcmp( &a->a_nvals[0],
2048 &srs->sr_state.ctxcsn[i] )<= 0 ) {
2049 Debug( LDAP_DEBUG_SYNC,
2050 "Entry %s CSN %s older or equal to ctx %s\n",
2051 rs->sr_entry->e_name.bv_val,
2052 a->a_nvals[0].bv_val,
2053 srs->sr_state.ctxcsn[i].bv_val );
2054 return LDAP_SUCCESS;
2059 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2061 rs->sr_ctrls[1] = NULL;
2062 /* If we're in delta-sync mode, always send a cookie */
2063 if ( si->si_nopres && si->si_usehint && a ) {
2064 struct berval cookie;
2065 slap_compose_sync_cookie( op, &cookie, a->a_nvals, srs->sr_state.rid, srs->sr_state.sid );
2066 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2067 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 1, &cookie );
2069 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2070 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 0, NULL );
2072 } else if ( rs->sr_type == REP_RESULT && rs->sr_err == LDAP_SUCCESS ) {
2073 struct berval cookie;
2075 if ( ss->ss_flags & SS_CHANGED ) {
2076 slap_compose_sync_cookie( op, &cookie, ss->ss_ctxcsn,
2077 srs->sr_state.rid, srs->sr_state.sid );
2079 Debug( LDAP_DEBUG_SYNC, "syncprov_search_response: cookie=%s\n", cookie.bv_val, 0, 0 );
2082 /* Is this a regular refresh?
2083 * Note: refresh never gets here if there were no changes
2086 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2088 rs->sr_ctrls[1] = NULL;
2089 rs->sr_err = syncprov_done_ctrl( op, rs, rs->sr_ctrls,
2090 0, 1, &cookie, ( ss->ss_flags & SS_PRESENT ) ? LDAP_SYNC_REFRESH_PRESENTS :
2091 LDAP_SYNC_REFRESH_DELETES );
2092 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2094 /* It's RefreshAndPersist, transition to Persist phase */
2095 syncprov_sendinfo( op, rs, ( ss->ss_flags & SS_PRESENT ) ?
2096 LDAP_TAG_SYNC_REFRESH_PRESENT : LDAP_TAG_SYNC_REFRESH_DELETE,
2097 ( ss->ss_flags & SS_CHANGED ) ? &cookie : NULL,
2099 if ( ss->ss_flags & SS_CHANGED )
2100 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2102 /* Detach this Op from frontend control */
2103 ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex );
2104 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
2106 /* But not if this connection was closed along the way */
2107 if ( op->o_abandon ) {
2108 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2109 ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
2110 syncprov_free_syncop( ss->ss_so );
2111 return SLAPD_ABANDON;
2114 /* Turn off the refreshing flag */
2115 ss->ss_so->s_flags ^= PS_IS_REFRESHING;
2117 syncprov_detach_op( op, ss->ss_so, on );
2119 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2121 /* If there are queued responses, fire them off */
2122 if ( ss->ss_so->s_res )
2123 syncprov_qstart( ss->ss_so );
2125 ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
2127 return LDAP_SUCCESS;
2131 return SLAP_CB_CONTINUE;
2135 syncprov_op_search( Operation *op, SlapReply *rs )
2137 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2138 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2140 int gotstate = 0, changed = 0, do_present = 0;
2141 syncops *sop = NULL;
2145 int i, *sids, numcsns;
2146 struct berval mincsn;
2148 if ( !(op->o_sync_mode & SLAP_SYNC_REFRESH) ) return SLAP_CB_CONTINUE;
2150 if ( op->ors_deref & LDAP_DEREF_SEARCHING ) {
2151 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR, "illegal value for derefAliases" );
2155 srs = op->o_controls[slap_cids.sc_LDAPsync];
2156 op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
2158 /* If this is a persistent search, set it up right away */
2159 if ( op->o_sync_mode & SLAP_SYNC_PERSIST ) {
2169 so.s_flags = PS_IS_REFRESHING | PS_FIND_BASE;
2170 /* syncprov_findbase expects to be called as a callback... */
2171 sc.sc_private = &opc;
2173 ldap_pvt_thread_mutex_init( &so.s_mutex );
2174 cb = op->o_callback;
2175 op->o_callback = ≻
2176 rs->sr_err = syncprov_findbase( op, &fc );
2177 op->o_callback = cb;
2178 ldap_pvt_thread_mutex_destroy( &so.s_mutex );
2180 if ( rs->sr_err != LDAP_SUCCESS ) {
2181 send_ldap_result( op, rs );
2184 sop = ch_malloc( sizeof( syncops ));
2186 ldap_pvt_thread_mutex_init( &sop->s_mutex );
2187 sop->s_rid = srs->sr_state.rid;
2188 sop->s_sid = srs->sr_state.sid;
2191 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2192 sop->s_next = si->si_ops;
2194 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2197 /* snapshot the ctxcsn */
2198 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2199 numcsns = si->si_numcsns;
2201 ber_bvarray_dup_x( &ctxcsn, si->si_ctxcsn, op->o_tmpmemctx );
2202 sids = op->o_tmpalloc( numcsns * sizeof(int), op->o_tmpmemctx );
2203 for ( i=0; i<numcsns; i++ )
2204 sids[i] = si->si_sids[i];
2209 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2211 /* If we have a cookie, handle the PRESENT lookups */
2212 if ( srs->sr_state.ctxcsn ) {
2216 /* If we don't have any CSN of our own yet, pretend nothing
2222 if ( !si->si_nopres )
2223 do_present = SS_PRESENT;
2225 /* If there are SIDs we don't recognize in the cookie, drop them */
2226 for (i=0; i<srs->sr_state.numcsns; ) {
2227 for (j=0; j<numcsns; j++) {
2228 if ( srs->sr_state.sids[i] == sids[j] ) {
2233 if ( j == numcsns ) {
2234 struct berval tmp = srs->sr_state.ctxcsn[i];
2235 j = srs->sr_state.numcsns - 1;
2236 srs->sr_state.ctxcsn[i] = srs->sr_state.ctxcsn[j];
2238 srs->sr_state.ctxcsn[j] = tmp;
2239 srs->sr_state.numcsns = j;
2240 srs->sr_state.sids[i] = srs->sr_state.sids[j];
2246 /* Find the smallest CSN */
2247 mincsn = srs->sr_state.ctxcsn[0];
2248 for ( i=1; i<srs->sr_state.numcsns; i++ ) {
2249 if ( ber_bvcmp( &mincsn, &srs->sr_state.ctxcsn[i] ) > 0 )
2250 mincsn = srs->sr_state.ctxcsn[i];
2253 /* If nothing has changed, shortcut it */
2254 if ( srs->sr_state.numcsns == numcsns ) {
2256 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2257 for ( j=0; j<numcsns; j++ ) {
2258 if ( srs->sr_state.sids[i] != sids[j] )
2260 if ( !bvmatch( &srs->sr_state.ctxcsn[i], &ctxcsn[j] ))
2261 changed = SS_CHANGED;
2269 no_change: if ( !(op->o_sync_mode & SLAP_SYNC_PERSIST) ) {
2270 LDAPControl *ctrls[2];
2274 syncprov_done_ctrl( op, rs, ctrls, 0, 0,
2275 NULL, LDAP_SYNC_REFRESH_DELETES );
2276 rs->sr_ctrls = ctrls;
2277 rs->sr_err = LDAP_SUCCESS;
2278 send_ldap_result( op, rs );
2279 rs->sr_ctrls = NULL;
2285 /* consumer doesn't have the right number of CSNs */
2286 changed = SS_CHANGED;
2288 /* Do we have a sessionlog for this search? */
2291 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
2292 /* Are there any log entries, and is the consumer state
2293 * present in the session log?
2295 if ( sl->sl_num > 0 && ber_bvcmp( &mincsn, &sl->sl_mincsn ) >= 0 ) {
2297 /* mutex is unlocked in playlog */
2298 syncprov_playlog( op, rs, sl, srs, ctxcsn, numcsns, sids );
2300 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
2303 /* Is the CSN still present in the database? */
2304 if ( syncprov_findcsn( op, FIND_CSN ) != LDAP_SUCCESS ) {
2305 /* No, so a reload is required */
2306 /* the 2.2 consumer doesn't send this hint */
2307 if ( si->si_usehint && srs->sr_rhint == 0 ) {
2309 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2311 op->o_tmpfree( sids, op->o_tmpmemctx );
2312 send_ldap_error( op, rs, LDAP_SYNC_REFRESH_REQUIRED, "sync cookie is stale" );
2317 /* If changed and doing Present lookup, send Present UUIDs */
2318 if ( do_present && syncprov_findcsn( op, FIND_PRESENT ) !=
2321 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2323 op->o_tmpfree( sids, op->o_tmpmemctx );
2324 send_ldap_result( op, rs );
2329 /* No consumer state, assume something has changed */
2330 changed = SS_CHANGED;
2334 /* Append CSN range to search filter, save original filter
2335 * for persistent search evaluation
2338 sop->s_filterstr= op->ors_filterstr;
2341 /* If something changed, find the changes */
2342 if ( gotstate && changed ) {
2343 Filter *fand, *fava;
2345 fand = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2346 fand->f_choice = LDAP_FILTER_AND;
2347 fand->f_next = NULL;
2348 fava = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2350 fava->f_choice = LDAP_FILTER_GE;
2351 fava->f_ava = op->o_tmpalloc( sizeof(AttributeAssertion), op->o_tmpmemctx );
2352 fava->f_ava->aa_desc = slap_schema.si_ad_entryCSN;
2353 #ifdef LDAP_COMP_MATCH
2354 fava->f_ava->aa_cf = NULL;
2356 ber_dupbv_x( &fava->f_ava->aa_value, &mincsn, op->o_tmpmemctx );
2357 fava->f_next = op->ors_filter;
2358 op->ors_filter = fand;
2359 filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2361 sop->s_flags |= PS_FIX_FILTER;
2364 /* Let our callback add needed info to returned entries */
2365 cb = op->o_tmpcalloc(1, sizeof(slap_callback)+sizeof(searchstate), op->o_tmpmemctx);
2366 ss = (searchstate *)(cb+1);
2369 ss->ss_flags = do_present | changed;
2370 ss->ss_ctxcsn = ctxcsn;
2371 ss->ss_numcsns = numcsns;
2373 cb->sc_response = syncprov_search_response;
2374 cb->sc_cleanup = syncprov_search_cleanup;
2375 cb->sc_private = ss;
2376 cb->sc_next = op->o_callback;
2377 op->o_callback = cb;
2379 /* If this is a persistent search and no changes were reported during
2380 * the refresh phase, just invoke the response callback to transition
2381 * us into persist phase
2384 rs->sr_err = LDAP_SUCCESS;
2385 rs->sr_nentries = 0;
2386 send_ldap_result( op, rs );
2389 return SLAP_CB_CONTINUE;
2393 syncprov_operational(
2397 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2398 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2400 /* This prevents generating unnecessarily; frontend will strip
2401 * any statically stored copy.
2403 if ( op->o_sync != SLAP_CONTROL_NONE )
2404 return SLAP_CB_CONTINUE;
2406 if ( rs->sr_entry &&
2407 dn_match( &rs->sr_entry->e_nname, op->o_bd->be_nsuffix )) {
2409 if ( SLAP_OPATTRS( rs->sr_attr_flags ) ||
2410 ad_inlist( slap_schema.si_ad_contextCSN, rs->sr_attrs )) {
2411 Attribute *a, **ap = NULL;
2413 for ( a=rs->sr_entry->e_attrs; a; a=a->a_next ) {
2414 if ( a->a_desc == slap_schema.si_ad_contextCSN )
2418 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2419 if ( si->si_ctxcsn ) {
2421 for ( ap = &rs->sr_operational_attrs; *ap;
2422 ap=&(*ap)->a_next );
2424 a = attr_alloc( slap_schema.si_ad_contextCSN );
2429 if ( !(rs->sr_flags & REP_ENTRY_MODIFIABLE) ) {
2430 Entry *e = entry_dup( rs->sr_entry );
2431 if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
2432 overlay_entry_release_ov( op, rs->sr_entry, 0, on );
2433 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
2434 } else if ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) {
2435 entry_free( rs->sr_entry );
2439 REP_ENTRY_MODIFIABLE|REP_ENTRY_MUSTBEFREED;
2440 a = attr_find( rs->sr_entry->e_attrs,
2441 slap_schema.si_ad_contextCSN );
2443 if ( a->a_nvals != a->a_vals ) {
2444 ber_bvarray_free( a->a_nvals );
2447 ber_bvarray_free( a->a_vals );
2451 attr_valadd( a, si->si_ctxcsn, si->si_ctxcsn, si->si_numcsns );
2453 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2456 return SLAP_CB_CONTINUE;
2466 static ConfigDriver sp_cf_gen;
2468 static ConfigTable spcfg[] = {
2469 { "syncprov-checkpoint", "ops> <minutes", 3, 3, 0, ARG_MAGIC|SP_CHKPT,
2470 sp_cf_gen, "( OLcfgOvAt:1.1 NAME 'olcSpCheckpoint' "
2471 "DESC 'ContextCSN checkpoint interval in ops and minutes' "
2472 "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
2473 { "syncprov-sessionlog", "ops", 2, 2, 0, ARG_INT|ARG_MAGIC|SP_SESSL,
2474 sp_cf_gen, "( OLcfgOvAt:1.2 NAME 'olcSpSessionlog' "
2475 "DESC 'Session log size in ops' "
2476 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
2477 { "syncprov-nopresent", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_NOPRES,
2478 sp_cf_gen, "( OLcfgOvAt:1.3 NAME 'olcSpNoPresent' "
2479 "DESC 'Omit Present phase processing' "
2480 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2481 { "syncprov-reloadhint", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_USEHINT,
2482 sp_cf_gen, "( OLcfgOvAt:1.4 NAME 'olcSpReloadHint' "
2483 "DESC 'Observe Reload Hint in Request control' "
2484 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2485 { NULL, NULL, 0, 0, 0, ARG_IGNORED }
2488 static ConfigOCs spocs[] = {
2489 { "( OLcfgOvOc:1.1 "
2490 "NAME 'olcSyncProvConfig' "
2491 "DESC 'SyncRepl Provider configuration' "
2492 "SUP olcOverlayConfig "
2493 "MAY ( olcSpCheckpoint $ olcSpSessionlog $ olcSpNoPresent ) )",
2494 Cft_Overlay, spcfg },
2499 sp_cf_gen(ConfigArgs *c)
2501 slap_overinst *on = (slap_overinst *)c->bi;
2502 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2505 if ( c->op == SLAP_CONFIG_EMIT ) {
2506 switch ( c->type ) {
2508 if ( si->si_chkops || si->si_chktime ) {
2510 bv.bv_len = snprintf( c->cr_msg, sizeof( c->cr_msg ),
2511 "%d %d", si->si_chkops, si->si_chktime );
2512 if ( bv.bv_len < 0 || bv.bv_len >= sizeof( c->cr_msg ) ) {
2515 bv.bv_val = c->cr_msg;
2516 value_add_one( &c->rvalue_vals, &bv );
2523 if ( si->si_logs ) {
2524 c->value_int = si->si_logs->sl_size;
2530 if ( si->si_nopres ) {
2537 if ( si->si_usehint ) {
2545 } else if ( c->op == LDAP_MOD_DELETE ) {
2546 switch ( c->type ) {
2553 si->si_logs->sl_size = 0;
2555 rc = LDAP_NO_SUCH_ATTRIBUTE;
2558 if ( si->si_nopres )
2561 rc = LDAP_NO_SUCH_ATTRIBUTE;
2564 if ( si->si_usehint )
2567 rc = LDAP_NO_SUCH_ATTRIBUTE;
2572 switch ( c->type ) {
2574 if ( lutil_atoi( &si->si_chkops, c->argv[1] ) != 0 ) {
2575 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint ops # \"%s\"",
2576 c->argv[0], c->argv[1] );
2577 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2578 "%s: %s\n", c->log, c->cr_msg, 0 );
2579 return ARG_BAD_CONF;
2581 if ( si->si_chkops <= 0 ) {
2582 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint ops # \"%d\"",
2583 c->argv[0], si->si_chkops );
2584 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2585 "%s: %s\n", c->log, c->cr_msg, 0 );
2586 return ARG_BAD_CONF;
2588 if ( lutil_atoi( &si->si_chktime, c->argv[2] ) != 0 ) {
2589 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint time \"%s\"",
2590 c->argv[0], c->argv[1] );
2591 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2592 "%s: %s\n", c->log, c->cr_msg, 0 );
2593 return ARG_BAD_CONF;
2595 if ( si->si_chktime <= 0 ) {
2596 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint time \"%d\"",
2597 c->argv[0], si->si_chkops );
2598 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2599 "%s: %s\n", c->log, c->cr_msg, 0 );
2600 return ARG_BAD_CONF;
2602 si->si_chktime *= 60;
2606 int size = c->value_int;
2609 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s size %d is negative",
2611 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2612 "%s: %s\n", c->log, c->cr_msg, 0 );
2613 return ARG_BAD_CONF;
2617 sl = ch_malloc( sizeof( sessionlog ) + LDAP_LUTIL_CSNSTR_BUFSIZE );
2618 sl->sl_mincsn.bv_val = (char *)(sl+1);
2619 sl->sl_mincsn.bv_len = 0;
2621 sl->sl_head = sl->sl_tail = NULL;
2622 ldap_pvt_thread_mutex_init( &sl->sl_mutex );
2629 si->si_nopres = c->value_int;
2632 si->si_usehint = c->value_int;
2638 /* ITS#3456 we cannot run this search on the main thread, must use a
2639 * child thread in order to insure we have a big enough stack.
2646 syncprov_findcsn( ptr, FIND_MAXCSN );
2650 /* Read any existing contextCSN from the underlying db.
2651 * Then search for any entries newer than that. If no value exists,
2652 * just generate it. Cache whatever result.
2660 slap_overinst *on = (slap_overinst *) be->bd_info;
2661 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2663 Connection conn = { 0 };
2664 OperationBuffer opbuf;
2669 void *thrctx = NULL;
2671 if ( !SLAP_LASTMOD( be )) {
2672 Debug( LDAP_DEBUG_ANY,
2673 "syncprov_db_open: invalid config, lastmod must be enabled\n", 0, 0, 0 );
2677 if ( slapMode & SLAP_TOOL_MODE ) {
2681 rc = overlay_register_control( be, LDAP_CONTROL_SYNC );
2686 thrctx = ldap_pvt_thread_pool_context();
2687 connection_fake_init( &conn, &opbuf, thrctx );
2690 op->o_dn = be->be_rootdn;
2691 op->o_ndn = be->be_rootndn;
2693 rc = overlay_entry_get_ov( op, be->be_nsuffix, NULL,
2694 slap_schema.si_ad_contextCSN, 0, &e, on );
2697 ldap_pvt_thread_t tid;
2699 a = attr_find( e->e_attrs, slap_schema.si_ad_contextCSN );
2701 ber_bvarray_dup_x( &si->si_ctxcsn, a->a_vals, NULL );
2702 si->si_numcsns = a->a_numvals;
2703 si->si_sids = slap_parse_csn_sids( si->si_ctxcsn, a->a_numvals, NULL );
2705 overlay_entry_release_ov( op, e, 0, on );
2706 if ( si->si_ctxcsn ) {
2707 op->o_req_dn = be->be_suffix[0];
2708 op->o_req_ndn = be->be_nsuffix[0];
2709 op->ors_scope = LDAP_SCOPE_SUBTREE;
2710 ldap_pvt_thread_create( &tid, 0, syncprov_db_otask, op );
2711 ldap_pvt_thread_join( tid, NULL );
2715 /* Didn't find a contextCSN, should we generate one? */
2716 if ( !si->si_ctxcsn ) {
2717 char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
2720 if ( SLAP_SYNC_SHADOW( op->o_bd )) {
2721 /* If we're also a consumer, then don't generate anything.
2722 * Wait for our provider to send it to us, or for a local
2723 * modify if we have multimaster.
2727 csn.bv_val = csnbuf;
2728 csn.bv_len = sizeof( csnbuf );
2729 slap_get_csn( op, &csn, 0 );
2730 value_add_one( &si->si_ctxcsn, &csn );
2732 si->si_sids = ch_malloc( sizeof(int) );
2733 si->si_sids[0] = slap_serverID;
2735 /* make sure we do a checkpoint on close */
2740 op->o_bd->bd_info = (BackendInfo *)on;
2744 /* Write the current contextCSN into the underlying db.
2752 slap_overinst *on = (slap_overinst *) be->bd_info;
2753 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2755 if ( slapMode & SLAP_TOOL_MODE ) {
2758 if ( si->si_numops ) {
2759 Connection conn = {0};
2760 OperationBuffer opbuf;
2762 SlapReply rs = {REP_RESULT};
2765 thrctx = ldap_pvt_thread_pool_context();
2766 connection_fake_init( &conn, &opbuf, thrctx );
2769 op->o_dn = be->be_rootdn;
2770 op->o_ndn = be->be_rootndn;
2771 syncprov_checkpoint( op, &rs, on );
2783 slap_overinst *on = (slap_overinst *)be->bd_info;
2784 syncprov_info_t *si;
2786 if ( SLAP_ISGLOBALOVERLAY( be ) ) {
2787 Debug( LDAP_DEBUG_ANY,
2788 "syncprov must be instantiated within a database.\n",
2793 si = ch_calloc(1, sizeof(syncprov_info_t));
2794 on->on_bi.bi_private = si;
2795 ldap_pvt_thread_rdwr_init( &si->si_csn_rwlock );
2796 ldap_pvt_thread_mutex_init( &si->si_ops_mutex );
2797 ldap_pvt_thread_mutex_init( &si->si_mods_mutex );
2799 csn_anlist[0].an_desc = slap_schema.si_ad_entryCSN;
2800 csn_anlist[0].an_name = slap_schema.si_ad_entryCSN->ad_cname;
2801 csn_anlist[1].an_desc = slap_schema.si_ad_entryUUID;
2802 csn_anlist[1].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2804 uuid_anlist[0].an_desc = slap_schema.si_ad_entryUUID;
2805 uuid_anlist[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2811 syncprov_db_destroy(
2816 slap_overinst *on = (slap_overinst *)be->bd_info;
2817 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2820 if ( si->si_logs ) {
2821 slog_entry *se = si->si_logs->sl_head;
2824 slog_entry *se_next = se->se_next;
2829 ch_free( si->si_logs );
2831 if ( si->si_ctxcsn )
2832 ber_bvarray_free( si->si_ctxcsn );
2834 ch_free( si->si_sids );
2835 ldap_pvt_thread_mutex_destroy( &si->si_mods_mutex );
2836 ldap_pvt_thread_mutex_destroy( &si->si_ops_mutex );
2837 ldap_pvt_thread_rdwr_destroy( &si->si_csn_rwlock );
2844 static int syncprov_parseCtrl (
2850 BerElementBuffer berbuf;
2851 BerElement *ber = (BerElement *)&berbuf;
2854 struct berval cookie = BER_BVNULL;
2858 if ( op->o_sync != SLAP_CONTROL_NONE ) {
2859 rs->sr_text = "Sync control specified multiple times";
2860 return LDAP_PROTOCOL_ERROR;
2863 if ( op->o_pagedresults != SLAP_CONTROL_NONE ) {
2864 rs->sr_text = "Sync control specified with pagedResults control";
2865 return LDAP_PROTOCOL_ERROR;
2868 if ( BER_BVISNULL( &ctrl->ldctl_value ) ) {
2869 rs->sr_text = "Sync control value is absent";
2870 return LDAP_PROTOCOL_ERROR;
2873 if ( BER_BVISEMPTY( &ctrl->ldctl_value ) ) {
2874 rs->sr_text = "Sync control value is empty";
2875 return LDAP_PROTOCOL_ERROR;
2878 /* Parse the control value
2879 * syncRequestValue ::= SEQUENCE {
2884 * refreshAndPersist (3)
2886 * cookie syncCookie OPTIONAL
2890 ber_init2( ber, &ctrl->ldctl_value, 0 );
2892 if ( (tag = ber_scanf( ber, "{i" /*}*/, &mode )) == LBER_ERROR ) {
2893 rs->sr_text = "Sync control : mode decoding error";
2894 return LDAP_PROTOCOL_ERROR;
2898 case LDAP_SYNC_REFRESH_ONLY:
2899 mode = SLAP_SYNC_REFRESH;
2901 case LDAP_SYNC_REFRESH_AND_PERSIST:
2902 mode = SLAP_SYNC_REFRESH_AND_PERSIST;
2905 rs->sr_text = "Sync control : unknown update mode";
2906 return LDAP_PROTOCOL_ERROR;
2909 tag = ber_peek_tag( ber, &len );
2911 if ( tag == LDAP_TAG_SYNC_COOKIE ) {
2912 if (( ber_scanf( ber, /*{*/ "m", &cookie )) == LBER_ERROR ) {
2913 rs->sr_text = "Sync control : cookie decoding error";
2914 return LDAP_PROTOCOL_ERROR;
2916 tag = ber_peek_tag( ber, &len );
2918 if ( tag == LDAP_TAG_RELOAD_HINT ) {
2919 if (( ber_scanf( ber, /*{*/ "b", &rhint )) == LBER_ERROR ) {
2920 rs->sr_text = "Sync control : rhint decoding error";
2921 return LDAP_PROTOCOL_ERROR;
2924 if (( ber_scanf( ber, /*{*/ "}")) == LBER_ERROR ) {
2925 rs->sr_text = "Sync control : decoding error";
2926 return LDAP_PROTOCOL_ERROR;
2928 sr = op->o_tmpcalloc( 1, sizeof(struct sync_control), op->o_tmpmemctx );
2929 sr->sr_rhint = rhint;
2930 if (!BER_BVISNULL(&cookie)) {
2931 ber_dupbv_x( &sr->sr_state.octet_str, &cookie, op->o_tmpmemctx );
2932 /* If parse fails, pretend no cookie was sent */
2933 if ( slap_parse_sync_cookie( &sr->sr_state, op->o_tmpmemctx ) ||
2934 sr->sr_state.rid == -1 ) {
2935 if ( sr->sr_state.ctxcsn ) {
2936 ber_bvarray_free_x( sr->sr_state.ctxcsn, op->o_tmpmemctx );
2937 sr->sr_state.ctxcsn = NULL;
2939 sr->sr_state.numcsns = 0;
2943 op->o_controls[slap_cids.sc_LDAPsync] = sr;
2945 op->o_sync = ctrl->ldctl_iscritical
2946 ? SLAP_CONTROL_CRITICAL
2947 : SLAP_CONTROL_NONCRITICAL;
2949 op->o_sync_mode |= mode; /* o_sync_mode shares o_sync */
2951 return LDAP_SUCCESS;
2954 /* This overlay is set up for dynamic loading via moduleload. For static
2955 * configuration, you'll need to arrange for the slap_overinst to be
2956 * initialized and registered by some other function inside slapd.
2959 static slap_overinst syncprov;
2962 syncprov_initialize()
2966 rc = register_supported_control( LDAP_CONTROL_SYNC,
2967 SLAP_CTRL_SEARCH, NULL,
2968 syncprov_parseCtrl, &slap_cids.sc_LDAPsync );
2969 if ( rc != LDAP_SUCCESS ) {
2970 Debug( LDAP_DEBUG_ANY,
2971 "syncprov_init: Failed to register control %d\n", rc, 0, 0 );
2975 syncprov.on_bi.bi_type = "syncprov";
2976 syncprov.on_bi.bi_db_init = syncprov_db_init;
2977 syncprov.on_bi.bi_db_destroy = syncprov_db_destroy;
2978 syncprov.on_bi.bi_db_open = syncprov_db_open;
2979 syncprov.on_bi.bi_db_close = syncprov_db_close;
2981 syncprov.on_bi.bi_op_abandon = syncprov_op_abandon;
2982 syncprov.on_bi.bi_op_cancel = syncprov_op_abandon;
2984 syncprov.on_bi.bi_op_add = syncprov_op_mod;
2985 syncprov.on_bi.bi_op_compare = syncprov_op_compare;
2986 syncprov.on_bi.bi_op_delete = syncprov_op_mod;
2987 syncprov.on_bi.bi_op_modify = syncprov_op_mod;
2988 syncprov.on_bi.bi_op_modrdn = syncprov_op_mod;
2989 syncprov.on_bi.bi_op_search = syncprov_op_search;
2990 syncprov.on_bi.bi_extended = syncprov_op_extended;
2991 syncprov.on_bi.bi_operational = syncprov_operational;
2993 syncprov.on_bi.bi_cf_ocs = spocs;
2995 generic_filter.f_desc = slap_schema.si_ad_objectClass;
2997 rc = config_register_schema( spcfg, spocs );
2998 if ( rc ) return rc;
3000 return overlay_register( &syncprov );
3003 #if SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC
3005 init_module( int argc, char *argv[] )
3007 return syncprov_initialize();
3009 #endif /* SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC */
3011 #endif /* defined(SLAPD_OVER_SYNCPROV) */