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 };
410 fc->fss->s_flags ^= PS_FIND_BASE;
411 ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
413 fop = *fc->fss->s_op;
415 fop.o_hdr = op->o_hdr;
417 fop.o_time = op->o_time;
418 fop.o_tincr = op->o_tincr;
419 bi = op->o_bd->bd_info;
421 cb.sc_response = findbase_cb;
424 fop.o_sync_mode = 0; /* turn off sync mode */
425 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
426 fop.o_callback = &cb;
427 fop.o_tag = LDAP_REQ_SEARCH;
428 fop.ors_scope = LDAP_SCOPE_BASE;
429 fop.ors_limit = NULL;
431 fop.ors_tlimit = SLAP_NO_LIMIT;
432 fop.ors_attrs = slap_anlist_no_attrs;
433 fop.ors_attrsonly = 1;
434 fop.ors_filter = &generic_filter;
435 fop.ors_filterstr = generic_filterstr;
437 rc = overlay_op_walk( &fop, &frs, op_search, on->on_info, on );
438 op->o_bd->bd_info = bi;
440 ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
444 /* After the first call, see if the fdn resides in the scope */
445 if ( fc->fbase == 1 ) {
446 switch ( fc->fss->s_op->ors_scope ) {
447 case LDAP_SCOPE_BASE:
448 fc->fscope = dn_match( fc->fdn, &fc->fss->s_base );
450 case LDAP_SCOPE_ONELEVEL: {
452 dnParent( fc->fdn, &pdn );
453 fc->fscope = dn_match( &pdn, &fc->fss->s_base );
455 case LDAP_SCOPE_SUBTREE:
456 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base );
458 case LDAP_SCOPE_SUBORDINATE:
459 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base ) &&
460 !dn_match( fc->fdn, &fc->fss->s_base );
468 /* If entryID has changed, then the base of this search has
469 * changed. Invalidate the psearch.
471 return LDAP_NO_SUCH_OBJECT;
475 * This function has three different purposes, but they all use a search
476 * that filters on entryCSN so they're combined here.
477 * 1: at startup time, after a contextCSN has been read from the database,
478 * we search for all entries with CSN >= contextCSN in case the contextCSN
479 * was not checkpointed at the previous shutdown.
481 * 2: when the current contextCSN is known and we have a sync cookie, we search
482 * for one entry with CSN = the cookie CSN. If not found, try <= cookie CSN.
483 * If an entry is found, the cookie CSN is valid, otherwise it is stale.
485 * 3: during a refresh phase, we search for all entries with CSN <= the cookie
486 * CSN, and generate Present records for them. We always collect this result
487 * in SyncID sets, even if there's only one match.
489 typedef enum find_csn_t {
496 findmax_cb( Operation *op, SlapReply *rs )
498 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
499 struct berval *maxcsn = op->o_callback->sc_private;
500 Attribute *a = attr_find( rs->sr_entry->e_attrs,
501 slap_schema.si_ad_entryCSN );
503 if ( a && ber_bvcmp( &a->a_vals[0], maxcsn ) > 0 ) {
504 maxcsn->bv_len = a->a_vals[0].bv_len;
505 strcpy( maxcsn->bv_val, a->a_vals[0].bv_val );
512 findcsn_cb( Operation *op, SlapReply *rs )
514 slap_callback *sc = op->o_callback;
516 /* We just want to know that at least one exists, so it's OK if
517 * we exceed the unchecked limit.
519 if ( rs->sr_err == LDAP_ADMINLIMIT_EXCEEDED ||
520 (rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS )) {
521 sc->sc_private = (void *)1;
526 /* Build a list of entryUUIDs for sending in a SyncID set */
530 typedef struct fpres_cookie {
537 findpres_cb( Operation *op, SlapReply *rs )
539 slap_callback *sc = op->o_callback;
540 fpres_cookie *pc = sc->sc_private;
542 int ret = SLAP_CB_CONTINUE;
544 switch ( rs->sr_type ) {
546 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
548 pc->uuids[pc->num].bv_val = pc->last;
549 AC_MEMCPY( pc->uuids[pc->num].bv_val, a->a_nvals[0].bv_val,
550 pc->uuids[pc->num].bv_len );
552 pc->last = pc->uuids[pc->num].bv_val;
553 pc->uuids[pc->num].bv_val = NULL;
556 if ( pc->num != SLAP_SYNCUUID_SET_SIZE )
562 ret = syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET, NULL,
564 pc->uuids[pc->num].bv_val = pc->last;
566 pc->last = pc->uuids[0].bv_val;
576 syncprov_findcsn( Operation *op, find_csn_t mode )
578 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
579 syncprov_info_t *si = on->on_bi.bi_private;
581 slap_callback cb = {0};
583 SlapReply frs = { REP_RESULT };
584 char buf[LDAP_LUTIL_CSNSTR_BUFSIZE + STRLENOF("(entryCSN<=)")];
585 char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
586 struct berval maxcsn;
588 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
589 fpres_cookie pcookie;
590 sync_control *srs = NULL;
591 struct slap_limits_set fc_limits;
592 int i, rc = LDAP_SUCCESS, findcsn_retry = 1;
595 if ( mode != FIND_MAXCSN ) {
596 srs = op->o_controls[slap_cids.sc_LDAPsync];
600 fop.o_sync_mode &= SLAP_CONTROL_MASK; /* turn off sync_mode */
601 /* We want pure entries, not referrals */
602 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
605 cf.f_av_desc = slap_schema.si_ad_entryCSN;
606 BER_BVZERO( &cf.f_av_value );
609 fop.o_callback = &cb;
610 fop.ors_limit = NULL;
611 fop.ors_tlimit = SLAP_NO_LIMIT;
612 fop.ors_filter = &cf;
613 fop.ors_filterstr.bv_val = buf;
618 cf.f_choice = LDAP_FILTER_GE;
619 cf.f_av_value = si->si_ctxcsn[0];
620 /* If there are multiple CSNs, use the largest */
621 for ( i=1; i<si->si_numcsns; i++) {
622 if ( ber_bvcmp( &cf.f_av_value, &si->si_ctxcsn[i] ) < 0 ) {
623 cf.f_av_value = si->si_ctxcsn[i];
627 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
628 "(entryCSN>=%s)", cf.f_av_value.bv_val );
629 if ( fop.ors_filterstr.bv_len < 0 || fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
632 fop.ors_attrsonly = 0;
633 fop.ors_attrs = csn_anlist;
634 fop.ors_slimit = SLAP_NO_LIMIT;
635 cb.sc_private = &maxcsn;
636 cb.sc_response = findmax_cb;
637 strcpy( cbuf, cf.f_av_value.bv_val );
638 maxcsn.bv_val = cbuf;
639 maxcsn.bv_len = cf.f_av_value.bv_len;
642 if ( BER_BVISEMPTY( &cf.f_av_value )) {
643 cf.f_av_value = srs->sr_state.ctxcsn[0];
644 /* If there are multiple CSNs, use the smallest */
645 for ( i=1; i<srs->sr_state.numcsns; i++ ) {
646 if ( ber_bvcmp( &cf.f_av_value, &srs->sr_state.ctxcsn[i] )
648 cf.f_av_value = srs->sr_state.ctxcsn[i];
652 /* Look for exact match the first time */
653 if ( findcsn_retry ) {
654 cf.f_choice = LDAP_FILTER_EQUALITY;
655 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
656 "(entryCSN=%s)", cf.f_av_value.bv_val );
657 /* On retry, look for <= */
659 cf.f_choice = LDAP_FILTER_LE;
660 fop.ors_limit = &fc_limits;
661 memset( &fc_limits, 0, sizeof( fc_limits ));
662 fc_limits.lms_s_unchecked = 1;
663 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
664 "(entryCSN<=%s)", cf.f_av_value.bv_val );
666 if ( fop.ors_filterstr.bv_len < 0 || fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
669 fop.ors_attrsonly = 1;
670 fop.ors_attrs = slap_anlist_no_attrs;
672 cb.sc_private = NULL;
673 cb.sc_response = findcsn_cb;
676 fop.ors_filter = op->ors_filter;
677 fop.ors_filterstr = op->ors_filterstr;
678 fop.ors_attrsonly = 0;
679 fop.ors_attrs = uuid_anlist;
680 fop.ors_slimit = SLAP_NO_LIMIT;
681 cb.sc_private = &pcookie;
682 cb.sc_response = findpres_cb;
685 /* preallocate storage for a full set */
686 pcookie.uuids = op->o_tmpalloc( (SLAP_SYNCUUID_SET_SIZE+1) *
687 sizeof(struct berval) + SLAP_SYNCUUID_SET_SIZE * UUID_LEN,
689 pcookie.last = (char *)(pcookie.uuids + SLAP_SYNCUUID_SET_SIZE+1);
690 pcookie.uuids[0].bv_val = pcookie.last;
691 pcookie.uuids[0].bv_len = UUID_LEN;
692 for (i=1; i<SLAP_SYNCUUID_SET_SIZE; i++) {
693 pcookie.uuids[i].bv_val = pcookie.uuids[i-1].bv_val + UUID_LEN;
694 pcookie.uuids[i].bv_len = UUID_LEN;
699 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
700 fop.o_bd->be_search( &fop, &frs );
701 fop.o_bd->bd_info = (BackendInfo *)on;
705 if ( ber_bvcmp( &si->si_ctxcsn[maxid], &maxcsn )) {
706 ber_bvreplace( &si->si_ctxcsn[maxid], &maxcsn );
707 si->si_numops++; /* ensure a checkpoint */
711 /* If matching CSN was not found, invalidate the context. */
712 if ( !cb.sc_private ) {
713 /* If we didn't find an exact match, then try for <= */
714 if ( findcsn_retry ) {
718 rc = LDAP_NO_SUCH_OBJECT;
722 op->o_tmpfree( pcookie.uuids, op->o_tmpmemctx );
730 syncprov_free_syncop( syncops *so )
732 syncres *sr, *srnext;
733 GroupAssertion *ga, *gnext;
735 ldap_pvt_thread_mutex_lock( &so->s_mutex );
736 if ( --so->s_inuse > 0 ) {
737 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
741 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
742 if ( ldap_pvt_runqueue_isrunning( &slapd_rq, so->s_qtask ) )
743 ldap_pvt_runqueue_stoptask( &slapd_rq, so->s_qtask );
744 ldap_pvt_runqueue_remove( &slapd_rq, so->s_qtask );
745 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
747 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
748 if ( so->s_flags & PS_IS_DETACHED ) {
749 filter_free( so->s_op->ors_filter );
750 for ( ga = so->s_op->o_groups; ga; ga=gnext ) {
756 ch_free( so->s_base.bv_val );
757 for ( sr=so->s_res; sr; sr=srnext ) {
761 ldap_pvt_thread_mutex_destroy( &so->s_mutex );
765 /* Send a persistent search response */
767 syncprov_sendresp( Operation *op, opcookie *opc, syncops *so,
768 Entry **e, int mode )
770 slap_overinst *on = opc->son;
772 SlapReply rs = { REP_SEARCH };
773 LDAPControl *ctrls[2];
774 struct berval cookie, csns[2];
776 Attribute a_uuid = {0};
778 if ( so->s_op->o_abandon )
779 return SLAPD_ABANDON;
782 csns[0] = opc->sctxcsn;
783 BER_BVZERO( &csns[1] );
784 slap_compose_sync_cookie( op, &cookie, csns, so->s_rid, so->s_sid );
786 Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: cookie=%s\n", cookie.bv_val, 0, 0 );
788 e_uuid.e_attrs = &a_uuid;
789 a_uuid.a_desc = slap_schema.si_ad_entryUUID;
790 a_uuid.a_nvals = &opc->suuid;
791 rs.sr_err = syncprov_state_ctrl( op, &rs, &e_uuid,
792 mode, ctrls, 0, 1, &cookie );
793 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
796 op->o_bd->bd_info = (BackendInfo *)on->on_info;
800 if ( rs.sr_entry->e_private )
801 rs.sr_flags = REP_ENTRY_MUSTRELEASE;
802 if ( opc->sreference ) {
803 rs.sr_ref = get_entry_referrals( op, rs.sr_entry );
804 rs.sr_err = send_search_reference( op, &rs );
805 ber_bvarray_free( rs.sr_ref );
811 case LDAP_SYNC_MODIFY:
813 if ( rs.sr_entry->e_private )
814 rs.sr_flags = REP_ENTRY_MUSTRELEASE;
815 rs.sr_attrs = op->ors_attrs;
816 rs.sr_err = send_search_entry( op, &rs );
820 case LDAP_SYNC_DELETE:
821 e_uuid.e_attrs = NULL;
822 e_uuid.e_name = opc->sdn;
823 e_uuid.e_nname = opc->sndn;
824 rs.sr_entry = &e_uuid;
825 if ( opc->sreference ) {
826 struct berval bv = BER_BVNULL;
828 rs.sr_err = send_search_reference( op, &rs );
830 rs.sr_err = send_search_entry( op, &rs );
836 /* In case someone else freed it already? */
838 op->o_tmpfree( rs.sr_ctrls[0], op->o_tmpmemctx );
845 /* Play back queued responses */
847 syncprov_qplay( Operation *op, struct re_s *rtask )
849 syncops *so = rtask->arg;
850 slap_overinst *on = LDAP_SLIST_FIRST(&so->s_op->o_extra)->oe_key;
859 ldap_pvt_thread_mutex_lock( &so->s_mutex );
862 so->s_res = sr->s_next;
864 so->s_restail = NULL;
865 /* Exit loop with mutex held */
866 if ( !sr || so->s_op->o_abandon )
868 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
871 opc.sndn = sr->s_ndn;
872 opc.suuid = sr->s_uuid;
873 opc.sctxcsn = sr->s_csn;
874 opc.sreference = sr->s_isreference;
877 if ( sr->s_mode != LDAP_SYNC_DELETE ) {
878 rc = overlay_entry_get_ov( op, &opc.sndn, NULL, NULL, 0, &e, on );
880 Debug( LDAP_DEBUG_SYNC, "syncprov_qplay: failed to get %s, "
881 "error (%d), ignoring...\n", opc.sndn.bv_val, rc, 0 );
887 rc = syncprov_sendresp( op, &opc, so, &e, sr->s_mode );
890 overlay_entry_release_ov( op, e, 0, on );
896 /* Exit loop with mutex held */
897 ldap_pvt_thread_mutex_lock( &so->s_mutex );
902 /* wait until we get explicitly scheduled again */
903 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
904 ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
906 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 1 );
908 /* bail out on any error */
909 ldap_pvt_runqueue_remove( &slapd_rq, rtask );
911 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
912 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
916 /* runqueue task for playing back queued responses */
918 syncprov_qtask( void *ctx, void *arg )
920 struct re_s *rtask = arg;
921 syncops *so = rtask->arg;
922 OperationBuffer opbuf;
929 op->o_hdr = &opbuf.ob_hdr;
930 op->o_controls = opbuf.ob_controls;
931 memset( op->o_controls, 0, sizeof(opbuf.ob_controls) );
933 *op->o_hdr = *so->s_op->o_hdr;
935 op->o_tmpmemctx = slap_sl_mem_create(SLAP_SLAB_SIZE, SLAP_SLAB_STACK, ctx, 1);
936 op->o_tmpmfuncs = &slap_sl_mfuncs;
937 op->o_threadctx = ctx;
939 /* syncprov_qplay expects a fake db */
940 be = *so->s_op->o_bd;
941 be.be_flags |= SLAP_DBFLAG_OVERLAY;
943 LDAP_SLIST_FIRST(&op->o_extra) = NULL;
944 op->o_callback = NULL;
946 rc = syncprov_qplay( op, rtask );
948 /* decrement use count... */
949 syncprov_free_syncop( so );
951 #if 0 /* FIXME: connection_close isn't exported from slapd.
955 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
956 if ( connection_state_closing( op->o_conn )) {
957 connection_close( op->o_conn );
959 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
965 /* Start the task to play back queued psearch responses */
967 syncprov_qstart( syncops *so )
970 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
971 if ( !so->s_qtask ) {
972 so->s_qtask = ldap_pvt_runqueue_insert( &slapd_rq, RUNQ_INTERVAL,
973 syncprov_qtask, so, "syncprov_qtask",
974 so->s_op->o_conn->c_peer_name.bv_val );
978 if (!ldap_pvt_runqueue_isrunning( &slapd_rq, so->s_qtask ) &&
979 !so->s_qtask->next_sched.tv_sec ) {
980 so->s_qtask->interval.tv_sec = 0;
981 ldap_pvt_runqueue_resched( &slapd_rq, so->s_qtask, 0 );
982 so->s_qtask->interval.tv_sec = RUNQ_INTERVAL;
987 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
989 slap_wake_listener();
992 /* Queue a persistent search response */
994 syncprov_qresp( opcookie *opc, syncops *so, int mode )
999 /* Don't send changes back to their originator */
1000 sid = slap_parse_csn_sid( &opc->sctxcsn );
1001 if ( sid >= 0 && sid == so->s_sid )
1002 return LDAP_SUCCESS;
1004 srsize = sizeof(syncres) + opc->suuid.bv_len + 1 +
1005 opc->sdn.bv_len + 1 + opc->sndn.bv_len + 1;
1006 if ( opc->sctxcsn.bv_len )
1007 srsize += opc->sctxcsn.bv_len + 1;
1008 sr = ch_malloc( srsize );
1010 sr->s_dn.bv_val = (char *)(sr + 1);
1011 sr->s_dn.bv_len = opc->sdn.bv_len;
1013 sr->s_isreference = opc->sreference;
1014 sr->s_ndn.bv_val = lutil_strcopy( sr->s_dn.bv_val,
1015 opc->sdn.bv_val ) + 1;
1016 sr->s_ndn.bv_len = opc->sndn.bv_len;
1017 sr->s_uuid.bv_val = lutil_strcopy( sr->s_ndn.bv_val,
1018 opc->sndn.bv_val ) + 1;
1019 sr->s_uuid.bv_len = opc->suuid.bv_len;
1020 AC_MEMCPY( sr->s_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1021 if ( opc->sctxcsn.bv_len ) {
1022 sr->s_csn.bv_val = sr->s_uuid.bv_val + sr->s_uuid.bv_len + 1;
1023 strcpy( sr->s_csn.bv_val, opc->sctxcsn.bv_val );
1025 sr->s_csn.bv_val = NULL;
1027 sr->s_csn.bv_len = opc->sctxcsn.bv_len;
1029 ldap_pvt_thread_mutex_lock( &so->s_mutex );
1033 so->s_restail->s_next = sr;
1037 /* If the base of the psearch was modified, check it next time round */
1038 if ( so->s_flags & PS_WROTE_BASE ) {
1039 so->s_flags ^= PS_WROTE_BASE;
1040 so->s_flags |= PS_FIND_BASE;
1042 if ( so->s_flags & PS_IS_DETACHED ) {
1043 syncprov_qstart( so );
1045 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
1046 return LDAP_SUCCESS;
1050 syncprov_drop_psearch( syncops *so, int lock )
1052 if ( so->s_flags & PS_IS_DETACHED ) {
1054 ldap_pvt_thread_mutex_lock( &so->s_op->o_conn->c_mutex );
1055 so->s_op->o_conn->c_n_ops_executing--;
1056 so->s_op->o_conn->c_n_ops_completed++;
1057 LDAP_STAILQ_REMOVE( &so->s_op->o_conn->c_ops, so->s_op, Operation,
1060 ldap_pvt_thread_mutex_unlock( &so->s_op->o_conn->c_mutex );
1062 syncprov_free_syncop( so );
1068 syncprov_ab_cleanup( Operation *op, SlapReply *rs )
1070 slap_callback *sc = op->o_callback;
1071 op->o_callback = sc->sc_next;
1072 syncprov_drop_psearch( op->o_callback->sc_private, 0 );
1073 op->o_tmpfree( sc, op->o_tmpmemctx );
1078 syncprov_op_abandon( Operation *op, SlapReply *rs )
1080 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1081 syncprov_info_t *si = on->on_bi.bi_private;
1082 syncops *so, *soprev;
1084 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1085 for ( so=si->si_ops, soprev = (syncops *)&si->si_ops; so;
1086 soprev=so, so=so->s_next ) {
1087 if ( so->s_op->o_connid == op->o_connid &&
1088 so->s_op->o_msgid == op->orn_msgid ) {
1089 so->s_op->o_abandon = 1;
1090 soprev->s_next = so->s_next;
1094 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1096 /* Is this really a Cancel exop? */
1097 if ( op->o_tag != LDAP_REQ_ABANDON ) {
1098 so->s_op->o_cancel = SLAP_CANCEL_ACK;
1099 rs->sr_err = LDAP_CANCELLED;
1100 send_ldap_result( so->s_op, rs );
1101 if ( so->s_flags & PS_IS_DETACHED ) {
1103 cb = op->o_tmpcalloc( 1, sizeof(slap_callback), op->o_tmpmemctx );
1104 cb->sc_cleanup = syncprov_ab_cleanup;
1105 cb->sc_next = op->o_callback;
1106 cb->sc_private = so;
1107 return SLAP_CB_CONTINUE;
1110 syncprov_drop_psearch( so, 0 );
1112 return SLAP_CB_CONTINUE;
1115 /* Find which persistent searches are affected by this operation */
1117 syncprov_matchops( Operation *op, opcookie *opc, int saveit )
1119 slap_overinst *on = opc->son;
1120 syncprov_info_t *si = on->on_bi.bi_private;
1123 syncops *ss, *sprev, *snext;
1127 struct berval newdn;
1129 BackendDB *b0 = op->o_bd, db;
1131 fc.fdn = &op->o_req_ndn;
1132 /* compute new DN */
1133 if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1135 if ( op->orr_nnewSup ) pdn = *op->orr_nnewSup;
1136 else dnParent( fc.fdn, &pdn );
1137 build_new_dn( &newdn, &pdn, &op->orr_nnewrdn, op->o_tmpmemctx );
1141 if ( op->o_tag != LDAP_REQ_ADD ) {
1142 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1146 rc = overlay_entry_get_ov( op, fc.fdn, NULL, NULL, 0, &e, on );
1147 /* If we're sending responses now, make a copy and unlock the DB */
1148 if ( e && !saveit ) {
1149 Entry *e2 = entry_dup( e );
1150 overlay_entry_release_ov( op, e, 0, on );
1161 if ( saveit || op->o_tag == LDAP_REQ_ADD ) {
1162 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1163 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1164 opc->sreference = is_entry_referral( e );
1165 a = attr_find( e->e_attrs, slap_schema.si_ad_entryUUID );
1167 ber_dupbv_x( &opc->suuid, &a->a_nvals[0], op->o_tmpmemctx );
1168 } else if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1169 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1170 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1171 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1172 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1175 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1176 for (ss = si->si_ops, sprev = (syncops *)&si->si_ops; ss;
1177 sprev = ss, ss=snext)
1184 if ( ss->s_op->o_abandon )
1192 /* If the base of the search is missing, signal a refresh */
1193 rc = syncprov_findbase( op, &fc );
1194 if ( rc != LDAP_SUCCESS ) {
1195 SlapReply rs = {REP_RESULT};
1196 send_ldap_error( ss->s_op, &rs, LDAP_SYNC_REFRESH_REQUIRED,
1197 "search base has changed" );
1198 sprev->s_next = snext;
1199 syncprov_drop_psearch( ss, 1 );
1205 /* If we're sending results now, look for this op in old matches */
1209 /* Did we modify the search base? */
1210 if ( dn_match( &op->o_req_ndn, &ss->s_base )) {
1211 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1212 ss->s_flags |= PS_WROTE_BASE;
1213 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1216 for ( sm=opc->smatches, old=(syncmatches *)&opc->smatches; sm;
1217 old=sm, sm=sm->sm_next ) {
1218 if ( sm->sm_op == ss ) {
1220 old->sm_next = sm->sm_next;
1221 op->o_tmpfree( sm, op->o_tmpmemctx );
1229 op2.o_hdr = op->o_hdr;
1230 op2.o_extra = op->o_extra;
1233 /* check if current o_req_dn is in scope and matches filter */
1234 if ( fc.fscope && test_filter( &op2, e, ss->s_op->ors_filter ) ==
1235 LDAP_COMPARE_TRUE ) {
1237 sm = op->o_tmpalloc( sizeof(syncmatches), op->o_tmpmemctx );
1238 sm->sm_next = opc->smatches;
1240 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1242 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1245 /* if found send UPDATE else send ADD */
1246 syncprov_qresp( opc, ss,
1247 found ? LDAP_SYNC_MODIFY : LDAP_SYNC_ADD );
1249 } else if ( !saveit && found ) {
1251 syncprov_qresp( opc, ss, LDAP_SYNC_DELETE );
1254 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1256 if ( op->o_tag != LDAP_REQ_ADD && e ) {
1257 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1260 overlay_entry_release_ov( op, e, 0, on );
1264 op->o_tmpfree( fc.fdn->bv_val, op->o_tmpmemctx );
1270 syncprov_op_cleanup( Operation *op, SlapReply *rs )
1272 slap_callback *cb = op->o_callback;
1273 opcookie *opc = cb->sc_private;
1274 slap_overinst *on = opc->son;
1275 syncprov_info_t *si = on->on_bi.bi_private;
1276 syncmatches *sm, *snext;
1277 modtarget *mt, mtdummy;
1279 for (sm = opc->smatches; sm; sm=snext) {
1280 snext = sm->sm_next;
1281 syncprov_free_syncop( sm->sm_op );
1282 op->o_tmpfree( sm, op->o_tmpmemctx );
1285 /* Remove op from lock table */
1287 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1288 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
1290 modinst *mi = mt->mt_mods;
1292 /* If there are more, promote the next one */
1293 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1294 if ( mi->mi_next ) {
1295 mt->mt_mods = mi->mi_next;
1296 mt->mt_op = mt->mt_mods->mi_op;
1297 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1299 avl_delete( &si->si_mods, mt, sp_avl_cmp );
1300 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1301 ldap_pvt_thread_mutex_destroy( &mt->mt_mutex );
1305 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1306 if ( !BER_BVISNULL( &opc->suuid ))
1307 op->o_tmpfree( opc->suuid.bv_val, op->o_tmpmemctx );
1308 if ( !BER_BVISNULL( &opc->sndn ))
1309 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1310 if ( !BER_BVISNULL( &opc->sdn ))
1311 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1312 op->o_callback = cb->sc_next;
1313 op->o_tmpfree(cb, op->o_tmpmemctx);
1319 syncprov_checkpoint( Operation *op, SlapReply *rs, slap_overinst *on )
1321 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
1324 SlapReply rsm = { 0 };
1325 slap_callback cb = {0};
1328 mod.sml_numvals = si->si_numcsns;
1329 mod.sml_values = si->si_ctxcsn;
1330 mod.sml_nvalues = NULL;
1331 mod.sml_desc = slap_schema.si_ad_contextCSN;
1332 mod.sml_op = LDAP_MOD_REPLACE;
1334 mod.sml_next = NULL;
1336 cb.sc_response = slap_null_cb;
1338 opm.o_tag = LDAP_REQ_MODIFY;
1339 opm.o_callback = &cb;
1340 opm.orm_modlist = &mod;
1341 opm.orm_no_opattrs = 1;
1342 if ( SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1343 be = *on->on_info->oi_origdb;
1346 opm.o_req_dn = opm.o_bd->be_suffix[0];
1347 opm.o_req_ndn = opm.o_bd->be_nsuffix[0];
1348 opm.o_bd->bd_info = on->on_info->oi_orig;
1349 opm.o_managedsait = SLAP_CONTROL_NONCRITICAL;
1350 opm.o_no_schema_check = 1;
1351 opm.o_bd->be_modify( &opm, &rsm );
1352 if ( mod.sml_next != NULL ) {
1353 slap_mods_free( mod.sml_next, 1 );
1358 syncprov_add_slog( Operation *op )
1360 opcookie *opc = op->o_callback->sc_private;
1361 slap_overinst *on = opc->son;
1362 syncprov_info_t *si = on->on_bi.bi_private;
1368 /* Allocate a record. UUIDs are not NUL-terminated. */
1369 se = ch_malloc( sizeof( slog_entry ) + opc->suuid.bv_len +
1370 op->o_csn.bv_len + 1 );
1372 se->se_tag = op->o_tag;
1374 se->se_uuid.bv_val = (char *)(&se[1]);
1375 AC_MEMCPY( se->se_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1376 se->se_uuid.bv_len = opc->suuid.bv_len;
1378 se->se_csn.bv_val = se->se_uuid.bv_val + opc->suuid.bv_len;
1379 AC_MEMCPY( se->se_csn.bv_val, op->o_csn.bv_val, op->o_csn.bv_len );
1380 se->se_csn.bv_val[op->o_csn.bv_len] = '\0';
1381 se->se_csn.bv_len = op->o_csn.bv_len;
1382 se->se_sid = slap_parse_csn_sid( &se->se_csn );
1384 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1385 if ( sl->sl_head ) {
1386 sl->sl_tail->se_next = se;
1392 while ( sl->sl_num > sl->sl_size ) {
1394 sl->sl_head = se->se_next;
1395 strcpy( sl->sl_mincsn.bv_val, se->se_csn.bv_val );
1396 sl->sl_mincsn.bv_len = se->se_csn.bv_len;
1400 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1404 /* Just set a flag if we found the matching entry */
1406 playlog_cb( Operation *op, SlapReply *rs )
1408 if ( rs->sr_type == REP_SEARCH ) {
1409 op->o_callback->sc_private = (void *)1;
1414 /* enter with sl->sl_mutex locked, release before returning */
1416 syncprov_playlog( Operation *op, SlapReply *rs, sessionlog *sl,
1417 sync_control *srs, BerVarray ctxcsn, int numcsns, int *sids )
1419 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1421 int i, j, ndel, num, nmods, mmods;
1422 char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
1424 struct berval delcsn[2];
1426 if ( !sl->sl_num ) {
1427 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1435 uuids = op->o_tmpalloc( (num+1) * sizeof( struct berval ) +
1436 num * UUID_LEN, op->o_tmpmemctx );
1437 uuids[0].bv_val = (char *)(uuids + num + 1);
1439 delcsn[0].bv_len = 0;
1440 delcsn[0].bv_val = cbuf;
1441 BER_BVZERO(&delcsn[1]);
1443 /* Make a copy of the relevant UUIDs. Put the Deletes up front
1444 * and everything else at the end. Do this first so we can
1445 * unlock the list mutex.
1447 Debug( LDAP_DEBUG_SYNC, "srs csn %s\n",
1448 srs->sr_state.ctxcsn[0].bv_val, 0, 0 );
1449 for ( se=sl->sl_head; se; se=se->se_next ) {
1451 Debug( LDAP_DEBUG_SYNC, "log csn %s\n", se->se_csn.bv_val, 0, 0 );
1453 for ( k=0; k<srs->sr_state.numcsns; k++ ) {
1454 if ( se->se_sid == srs->sr_state.sids[k] ) {
1455 ndel = ber_bvcmp( &se->se_csn, &srs->sr_state.ctxcsn[k] );
1460 Debug( LDAP_DEBUG_SYNC, "cmp %d, too old\n", ndel, 0, 0 );
1464 for ( k=0; k<numcsns; k++ ) {
1465 if ( se->se_sid == sids[k] ) {
1466 ndel = ber_bvcmp( &se->se_csn, &ctxcsn[k] );
1471 Debug( LDAP_DEBUG_SYNC, "cmp %d, too new\n", ndel, 0, 0 );
1474 if ( se->se_tag == LDAP_REQ_DELETE ) {
1477 AC_MEMCPY( cbuf, se->se_csn.bv_val, se->se_csn.bv_len );
1478 delcsn[0].bv_len = se->se_csn.bv_len;
1479 delcsn[0].bv_val[delcsn[0].bv_len] = '\0';
1484 uuids[j].bv_val = uuids[0].bv_val + (j * UUID_LEN);
1485 AC_MEMCPY(uuids[j].bv_val, se->se_uuid.bv_val, UUID_LEN);
1486 uuids[j].bv_len = UUID_LEN;
1488 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1492 /* Zero out unused slots */
1493 for ( i=ndel; i < num - nmods; i++ )
1494 uuids[i].bv_len = 0;
1496 /* Mods must be validated to see if they belong in this delete set.
1500 /* Strip any duplicates */
1501 for ( i=0; i<nmods; i++ ) {
1502 for ( j=0; j<ndel; j++ ) {
1503 if ( bvmatch( &uuids[j], &uuids[num - 1 - i] )) {
1504 uuids[num - 1 - i].bv_len = 0;
1509 if ( uuids[num - 1 - i].bv_len == 0 ) continue;
1510 for ( j=0; j<i; j++ ) {
1511 if ( bvmatch( &uuids[num - 1 - j], &uuids[num - 1 - i] )) {
1512 uuids[num - 1 - i].bv_len = 0;
1521 SlapReply frs = { REP_RESULT };
1524 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
1525 slap_callback cb = {0};
1529 fop.o_sync_mode = 0;
1530 fop.o_callback = &cb;
1531 fop.ors_limit = NULL;
1532 fop.ors_tlimit = SLAP_NO_LIMIT;
1533 fop.ors_attrs = slap_anlist_all_attributes;
1534 fop.ors_attrsonly = 0;
1535 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
1537 af.f_choice = LDAP_FILTER_AND;
1540 mf.f_choice = LDAP_FILTER_EQUALITY;
1542 mf.f_av_desc = slap_schema.si_ad_entryUUID;
1543 mf.f_next = fop.ors_filter;
1545 fop.ors_filter = ⁡
1547 cb.sc_response = playlog_cb;
1548 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
1550 for ( i=ndel; i<num; i++ ) {
1551 if ( uuids[i].bv_len == 0 ) continue;
1553 mf.f_av_value = uuids[i];
1554 cb.sc_private = NULL;
1556 frs.sr_nentries = 0;
1557 rc = fop.o_bd->be_search( &fop, &frs );
1559 /* If entry was not found, add to delete list */
1560 if ( !cb.sc_private ) {
1561 uuids[ndel++] = uuids[i];
1564 fop.o_bd->bd_info = (BackendInfo *)on;
1567 struct berval cookie;
1569 if ( delcsn[0].bv_len ) {
1570 slap_compose_sync_cookie( op, &cookie, delcsn, srs->sr_state.rid,
1571 srs->sr_state.sid );
1574 Debug( LDAP_DEBUG_SYNC, "syncprov_playlog: cookie=%s\n", cookie.bv_val, 0, 0 );
1576 uuids[ndel].bv_val = NULL;
1577 syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET,
1578 delcsn[0].bv_len ? &cookie : NULL, 0, uuids, 1 );
1579 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
1581 op->o_tmpfree( uuids, op->o_tmpmemctx );
1585 syncprov_op_response( Operation *op, SlapReply *rs )
1587 opcookie *opc = op->o_callback->sc_private;
1588 slap_overinst *on = opc->son;
1589 syncprov_info_t *si = on->on_bi.bi_private;
1592 if ( rs->sr_err == LDAP_SUCCESS )
1594 struct berval maxcsn = BER_BVNULL;
1595 char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
1596 int do_check = 0, have_psearches;
1598 /* Update our context CSN */
1600 ldap_pvt_thread_rdwr_wlock( &si->si_csn_rwlock );
1601 slap_get_commit_csn( op, &maxcsn );
1602 if ( !BER_BVISNULL( &maxcsn ) ) {
1604 strcpy( cbuf, maxcsn.bv_val );
1605 sid = slap_parse_csn_sid( &maxcsn );
1606 for ( i=0; i<si->si_numcsns; i++ ) {
1607 if ( sid == si->si_sids[i] ) {
1608 if ( ber_bvcmp( &maxcsn, &si->si_ctxcsn[i] ) > 0 ) {
1609 ber_bvreplace( &si->si_ctxcsn[i], &maxcsn );
1614 /* It's a new SID for us */
1615 if ( i == si->si_numcsns ) {
1616 value_add_one( &si->si_ctxcsn, &maxcsn );
1618 si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
1620 si->si_sids[i] = sid;
1623 /* internal ops that aren't meant to be replicated */
1624 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1625 return SLAP_CB_CONTINUE;
1628 /* Don't do any processing for consumer contextCSN updates */
1629 if ( SLAP_SYNC_SHADOW( op->o_bd ) &&
1630 op->o_msgid == SLAP_SYNC_UPDATE_MSGID ) {
1631 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1632 return SLAP_CB_CONTINUE;
1636 if ( si->si_chkops || si->si_chktime ) {
1637 if ( si->si_chkops && si->si_numops >= si->si_chkops ) {
1641 if ( si->si_chktime &&
1642 (op->o_time - si->si_chklast >= si->si_chktime )) {
1643 if ( si->si_chklast ) {
1645 si->si_chklast = op->o_time;
1651 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1654 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1655 syncprov_checkpoint( op, rs, on );
1656 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1659 opc->sctxcsn.bv_len = maxcsn.bv_len;
1660 opc->sctxcsn.bv_val = cbuf;
1662 /* Handle any persistent searches */
1663 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1664 have_psearches = ( si->si_ops != NULL );
1665 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1666 if ( have_psearches ) {
1669 case LDAP_REQ_MODIFY:
1670 case LDAP_REQ_MODRDN:
1671 case LDAP_REQ_EXTENDED:
1672 syncprov_matchops( op, opc, 0 );
1674 case LDAP_REQ_DELETE:
1675 /* for each match in opc->smatches:
1678 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1679 if ( sm->sm_op->s_op->o_abandon )
1681 syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_DELETE );
1687 /* Add any log records */
1688 if ( si->si_logs && op->o_tag != LDAP_REQ_ADD ) {
1689 syncprov_add_slog( op );
1693 return SLAP_CB_CONTINUE;
1696 /* We don't use a subentry to store the context CSN any more.
1697 * We expose the current context CSN as an operational attribute
1698 * of the suffix entry.
1701 syncprov_op_compare( Operation *op, SlapReply *rs )
1703 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1704 syncprov_info_t *si = on->on_bi.bi_private;
1705 int rc = SLAP_CB_CONTINUE;
1707 if ( dn_match( &op->o_req_ndn, op->o_bd->be_nsuffix ) &&
1708 op->oq_compare.rs_ava->aa_desc == slap_schema.si_ad_contextCSN )
1713 e.e_name = op->o_bd->be_suffix[0];
1714 e.e_nname = op->o_bd->be_nsuffix[0];
1717 a.a_desc = slap_schema.si_ad_contextCSN;
1719 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1721 a.a_vals = si->si_ctxcsn;
1722 a.a_nvals = a.a_vals;
1724 rs->sr_err = access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc,
1725 &op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL );
1726 if ( ! rs->sr_err ) {
1727 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1728 goto return_results;
1731 if ( get_assert( op ) &&
1732 ( test_filter( op, &e, get_assertion( op ) ) != LDAP_COMPARE_TRUE ) )
1734 rs->sr_err = LDAP_ASSERTION_FAILED;
1735 goto return_results;
1739 rs->sr_err = LDAP_COMPARE_FALSE;
1741 if ( attr_valfind( &a,
1742 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
1743 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
1744 &op->oq_compare.rs_ava->aa_value, NULL, op->o_tmpmemctx ) == 0 )
1746 rs->sr_err = LDAP_COMPARE_TRUE;
1751 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1753 send_ldap_result( op, rs );
1755 if( rs->sr_err == LDAP_COMPARE_FALSE || rs->sr_err == LDAP_COMPARE_TRUE ) {
1756 rs->sr_err = LDAP_SUCCESS;
1765 syncprov_op_mod( Operation *op, SlapReply *rs )
1767 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1768 syncprov_info_t *si = on->on_bi.bi_private;
1771 int have_psearches, cbsize;
1773 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1774 have_psearches = ( si->si_ops != NULL );
1775 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1777 cbsize = sizeof(slap_callback) + sizeof(opcookie) +
1778 (have_psearches ? sizeof(modinst) : 0 );
1780 cb = op->o_tmpcalloc(1, cbsize, op->o_tmpmemctx);
1781 opc = (opcookie *)(cb+1);
1783 cb->sc_response = syncprov_op_response;
1784 cb->sc_cleanup = syncprov_op_cleanup;
1785 cb->sc_private = opc;
1786 cb->sc_next = op->o_callback;
1787 op->o_callback = cb;
1789 /* If there are active persistent searches, lock this operation.
1790 * See seqmod.c for the locking logic on its own.
1792 if ( have_psearches ) {
1793 modtarget *mt, mtdummy;
1796 mi = (modinst *)(opc+1);
1799 /* See if we're already modifying this entry... */
1801 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1802 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
1804 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1805 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1806 mt->mt_tail->mi_next = mi;
1808 /* wait for this op to get to head of list */
1809 while ( mt->mt_mods != mi ) {
1810 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1811 /* FIXME: if dynamic config can delete overlays or
1812 * databases we'll have to check for cleanup here.
1813 * Currently it's not an issue because there are
1814 * no dynamic config deletes...
1816 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
1817 ldap_pvt_thread_yield();
1818 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1820 /* clean up if the caller is giving up */
1821 if ( op->o_abandon ) {
1823 for ( m2 = mt->mt_mods; m2->mi_next != mi;
1825 m2->mi_next = mi->mi_next;
1826 if ( mt->mt_tail == mi ) mt->mt_tail = m2;
1827 op->o_tmpfree( cb, op->o_tmpmemctx );
1828 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1829 return SLAPD_ABANDON;
1832 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1834 /* Record that we're modifying this entry now */
1835 mt = ch_malloc( sizeof(modtarget) );
1838 mt->mt_op = mi->mi_op;
1839 ldap_pvt_thread_mutex_init( &mt->mt_mutex );
1840 avl_insert( &si->si_mods, mt, sp_avl_cmp, avl_dup_error );
1841 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1845 if (( have_psearches || si->si_logs ) && op->o_tag != LDAP_REQ_ADD )
1846 syncprov_matchops( op, opc, 1 );
1848 return SLAP_CB_CONTINUE;
1852 syncprov_op_extended( Operation *op, SlapReply *rs )
1854 if ( exop_is_write( op ))
1855 return syncprov_op_mod( op, rs );
1857 return SLAP_CB_CONTINUE;
1860 typedef struct searchstate {
1861 slap_overinst *ss_on;
1863 BerVarray ss_ctxcsn;
1866 #define SS_PRESENT 0x01
1867 #define SS_CHANGED 0x02
1872 syncprov_search_cleanup( Operation *op, SlapReply *rs )
1874 if ( rs->sr_ctrls ) {
1875 op->o_tmpfree( rs->sr_ctrls[0], op->o_tmpmemctx );
1876 op->o_tmpfree( rs->sr_ctrls, op->o_tmpmemctx );
1877 rs->sr_ctrls = NULL;
1882 typedef struct SyncOperationBuffer {
1886 AttributeName sob_extra; /* not always present */
1887 /* Further data allocated here */
1888 } SyncOperationBuffer;
1891 syncprov_detach_op( Operation *op, syncops *so, slap_overinst *on )
1893 SyncOperationBuffer *sopbuf2;
1898 GroupAssertion *g1, *g2;
1900 /* count the search attrs */
1901 for (i=0; op->ors_attrs && !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
1902 alen += op->ors_attrs[i].an_name.bv_len + 1;
1904 /* Make a new copy of the operation */
1905 size = offsetof( SyncOperationBuffer, sob_extra ) +
1906 (i ? ( (i+1) * sizeof(AttributeName) + alen) : 0) +
1907 op->o_req_dn.bv_len + 1 +
1908 op->o_req_ndn.bv_len + 1 +
1909 op->o_ndn.bv_len + 1 +
1910 so->s_filterstr.bv_len + 1;
1911 sopbuf2 = ch_calloc( 1, size );
1912 op2 = &sopbuf2->sob_op;
1913 op2->o_hdr = &sopbuf2->sob_hdr;
1914 LDAP_SLIST_FIRST(&op2->o_extra) = &sopbuf2->sob_oe;
1916 /* Copy the fields we care about explicitly, leave the rest alone */
1917 *op2->o_hdr = *op->o_hdr;
1918 op2->o_tag = op->o_tag;
1919 op2->o_time = op->o_time;
1920 op2->o_bd = on->on_info->oi_origdb;
1921 op2->o_request = op->o_request;
1922 LDAP_SLIST_FIRST(&op2->o_extra)->oe_key = on;
1923 LDAP_SLIST_NEXT(LDAP_SLIST_FIRST(&op2->o_extra), oe_next) = NULL;
1925 ptr = (char *) sopbuf2 + offsetof( SyncOperationBuffer, sob_extra );
1927 op2->ors_attrs = (AttributeName *) ptr;
1928 ptr = (char *) &op2->ors_attrs[i+1];
1929 for (i=0; !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
1930 op2->ors_attrs[i] = op->ors_attrs[i];
1931 op2->ors_attrs[i].an_name.bv_val = ptr;
1932 ptr = lutil_strcopy( ptr, op->ors_attrs[i].an_name.bv_val ) + 1;
1934 BER_BVZERO( &op2->ors_attrs[i].an_name );
1937 op2->o_authz = op->o_authz;
1938 op2->o_ndn.bv_val = ptr;
1939 ptr = lutil_strcopy(ptr, op->o_ndn.bv_val) + 1;
1940 op2->o_dn = op2->o_ndn;
1941 op2->o_req_dn.bv_len = op->o_req_dn.bv_len;
1942 op2->o_req_dn.bv_val = ptr;
1943 ptr = lutil_strcopy(ptr, op->o_req_dn.bv_val) + 1;
1944 op2->o_req_ndn.bv_len = op->o_req_ndn.bv_len;
1945 op2->o_req_ndn.bv_val = ptr;
1946 ptr = lutil_strcopy(ptr, op->o_req_ndn.bv_val) + 1;
1947 op2->ors_filterstr.bv_val = ptr;
1948 strcpy( ptr, so->s_filterstr.bv_val );
1949 op2->ors_filterstr.bv_len = so->s_filterstr.bv_len;
1951 /* Skip the AND/GE clause that we stuck on in front */
1952 if ( so->s_flags & PS_FIX_FILTER ) {
1953 op2->ors_filter = op->ors_filter->f_and->f_next;
1954 so->s_flags ^= PS_FIX_FILTER;
1956 op2->ors_filter = op->ors_filter;
1958 op2->ors_filter = filter_dup( op2->ors_filter, NULL );
1961 /* Copy any cached group ACLs individually */
1962 op2->o_groups = NULL;
1963 for ( g1=op->o_groups; g1; g1=g1->ga_next ) {
1964 g2 = ch_malloc( sizeof(GroupAssertion) + g1->ga_len );
1966 strcpy( g2->ga_ndn, g1->ga_ndn );
1967 g2->ga_next = op2->o_groups;
1970 /* Don't allow any further group caching */
1971 op2->o_do_not_cache = 1;
1973 /* Add op2 to conn so abandon will find us */
1974 op->o_conn->c_n_ops_executing++;
1975 op->o_conn->c_n_ops_completed--;
1976 LDAP_STAILQ_INSERT_TAIL( &op->o_conn->c_ops, op2, o_next );
1977 so->s_flags |= PS_IS_DETACHED;
1979 /* Prevent anyone else from trying to send a result for this op */
1984 syncprov_search_response( Operation *op, SlapReply *rs )
1986 searchstate *ss = op->o_callback->sc_private;
1987 slap_overinst *on = ss->ss_on;
1988 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
1989 sync_control *srs = op->o_controls[slap_cids.sc_LDAPsync];
1991 if ( rs->sr_type == REP_SEARCH || rs->sr_type == REP_SEARCHREF ) {
1993 /* If we got a referral without a referral object, there's
1994 * something missing that we cannot replicate. Just ignore it.
1995 * The consumer will abort because we didn't send the expected
1998 if ( !rs->sr_entry ) {
1999 assert( rs->sr_entry != NULL );
2000 Debug( LDAP_DEBUG_ANY, "bogus referral in context\n",0,0,0 );
2001 return SLAP_CB_CONTINUE;
2003 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryCSN );
2004 if ( a == NULL && rs->sr_operational_attrs != NULL ) {
2005 a = attr_find( rs->sr_operational_attrs, slap_schema.si_ad_entryCSN );
2009 sid = slap_parse_csn_sid( &a->a_nvals[0] );
2011 /* Don't send changed entries back to the originator */
2012 if ( sid == srs->sr_state.sid && srs->sr_state.numcsns ) {
2013 Debug( LDAP_DEBUG_SYNC,
2014 "Entry %s changed by peer, ignored\n",
2015 rs->sr_entry->e_name.bv_val, 0, 0 );
2016 return LDAP_SUCCESS;
2019 /* If not a persistent search */
2021 /* Make sure entry is less than the snapshot'd contextCSN */
2022 for ( i=0; i<ss->ss_numcsns; i++ ) {
2023 if ( sid == ss->ss_sids[i] && ber_bvcmp( &a->a_nvals[0],
2024 &ss->ss_ctxcsn[i] ) > 0 ) {
2025 Debug( LDAP_DEBUG_SYNC,
2026 "Entry %s CSN %s greater than snapshot %s\n",
2027 rs->sr_entry->e_name.bv_val,
2028 a->a_nvals[0].bv_val,
2029 ss->ss_ctxcsn[i].bv_val );
2030 return LDAP_SUCCESS;
2035 /* Don't send old entries twice */
2036 if ( srs->sr_state.ctxcsn ) {
2037 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2038 if ( sid == srs->sr_state.sids[i] &&
2039 ber_bvcmp( &a->a_nvals[0],
2040 &srs->sr_state.ctxcsn[i] )<= 0 ) {
2041 Debug( LDAP_DEBUG_SYNC,
2042 "Entry %s CSN %s older or equal to ctx %s\n",
2043 rs->sr_entry->e_name.bv_val,
2044 a->a_nvals[0].bv_val,
2045 srs->sr_state.ctxcsn[i].bv_val );
2046 return LDAP_SUCCESS;
2051 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2053 rs->sr_ctrls[1] = NULL;
2054 /* If we're in delta-sync mode, always send a cookie */
2055 if ( si->si_nopres && si->si_usehint && a ) {
2056 struct berval cookie;
2057 slap_compose_sync_cookie( op, &cookie, a->a_nvals, srs->sr_state.rid, srs->sr_state.sid );
2058 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2059 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 1, &cookie );
2061 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2062 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 0, NULL );
2064 } else if ( rs->sr_type == REP_RESULT && rs->sr_err == LDAP_SUCCESS ) {
2065 struct berval cookie;
2067 if ( ss->ss_flags & SS_CHANGED ) {
2068 slap_compose_sync_cookie( op, &cookie, ss->ss_ctxcsn,
2069 srs->sr_state.rid, srs->sr_state.sid );
2071 Debug( LDAP_DEBUG_SYNC, "syncprov_search_response: cookie=%s\n", cookie.bv_val, 0, 0 );
2074 /* Is this a regular refresh?
2075 * Note: refresh never gets here if there were no changes
2078 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2080 rs->sr_ctrls[1] = NULL;
2081 rs->sr_err = syncprov_done_ctrl( op, rs, rs->sr_ctrls,
2082 0, 1, &cookie, ( ss->ss_flags & SS_PRESENT ) ? LDAP_SYNC_REFRESH_PRESENTS :
2083 LDAP_SYNC_REFRESH_DELETES );
2084 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2086 /* It's RefreshAndPersist, transition to Persist phase */
2087 syncprov_sendinfo( op, rs, ( ss->ss_flags & SS_PRESENT ) ?
2088 LDAP_TAG_SYNC_REFRESH_PRESENT : LDAP_TAG_SYNC_REFRESH_DELETE,
2089 ( ss->ss_flags & SS_CHANGED ) ? &cookie : NULL,
2091 if ( ss->ss_flags & SS_CHANGED )
2092 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2094 /* Detach this Op from frontend control */
2095 ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex );
2096 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
2098 /* But not if this connection was closed along the way */
2099 if ( op->o_abandon ) {
2100 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2101 ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
2102 syncprov_free_syncop( ss->ss_so );
2103 return SLAPD_ABANDON;
2106 /* Turn off the refreshing flag */
2107 ss->ss_so->s_flags ^= PS_IS_REFRESHING;
2109 syncprov_detach_op( op, ss->ss_so, on );
2111 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2113 /* If there are queued responses, fire them off */
2114 if ( ss->ss_so->s_res )
2115 syncprov_qstart( ss->ss_so );
2117 ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
2119 return LDAP_SUCCESS;
2123 return SLAP_CB_CONTINUE;
2127 syncprov_op_search( Operation *op, SlapReply *rs )
2129 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2130 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2132 int gotstate = 0, changed = 0, do_present = 0;
2133 syncops *sop = NULL;
2137 int i, *sids, numcsns;
2138 struct berval mincsn;
2140 if ( !(op->o_sync_mode & SLAP_SYNC_REFRESH) ) return SLAP_CB_CONTINUE;
2142 if ( op->ors_deref & LDAP_DEREF_SEARCHING ) {
2143 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR, "illegal value for derefAliases" );
2147 srs = op->o_controls[slap_cids.sc_LDAPsync];
2148 op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
2150 /* If this is a persistent search, set it up right away */
2151 if ( op->o_sync_mode & SLAP_SYNC_PERSIST ) {
2161 so.s_flags = PS_IS_REFRESHING | PS_FIND_BASE;
2162 /* syncprov_findbase expects to be called as a callback... */
2163 sc.sc_private = &opc;
2165 ldap_pvt_thread_mutex_init( &so.s_mutex );
2166 cb = op->o_callback;
2167 op->o_callback = ≻
2168 rs->sr_err = syncprov_findbase( op, &fc );
2169 op->o_callback = cb;
2170 ldap_pvt_thread_mutex_destroy( &so.s_mutex );
2172 if ( rs->sr_err != LDAP_SUCCESS ) {
2173 send_ldap_result( op, rs );
2176 sop = ch_malloc( sizeof( syncops ));
2178 ldap_pvt_thread_mutex_init( &sop->s_mutex );
2179 sop->s_rid = srs->sr_state.rid;
2180 sop->s_sid = srs->sr_state.sid;
2183 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2184 sop->s_next = si->si_ops;
2186 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2189 /* snapshot the ctxcsn */
2190 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2191 numcsns = si->si_numcsns;
2193 ber_bvarray_dup_x( &ctxcsn, si->si_ctxcsn, op->o_tmpmemctx );
2194 sids = op->o_tmpalloc( numcsns * sizeof(int), op->o_tmpmemctx );
2195 for ( i=0; i<numcsns; i++ )
2196 sids[i] = si->si_sids[i];
2201 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2203 /* If we have a cookie, handle the PRESENT lookups */
2204 if ( srs->sr_state.ctxcsn ) {
2208 /* If we don't have any CSN of our own yet, pretend nothing
2214 if ( !si->si_nopres )
2215 do_present = SS_PRESENT;
2217 /* If there are SIDs we don't recognize in the cookie, drop them */
2218 for (i=0; i<srs->sr_state.numcsns; ) {
2219 for (j=0; j<numcsns; j++) {
2220 if ( srs->sr_state.sids[i] == sids[j] ) {
2225 if ( j == numcsns ) {
2226 struct berval tmp = srs->sr_state.ctxcsn[i];
2227 j = srs->sr_state.numcsns - 1;
2228 srs->sr_state.ctxcsn[i] = srs->sr_state.ctxcsn[j];
2230 srs->sr_state.ctxcsn[j] = tmp;
2231 srs->sr_state.numcsns = j;
2232 srs->sr_state.sids[i] = srs->sr_state.sids[j];
2238 /* Find the smallest CSN */
2239 mincsn = srs->sr_state.ctxcsn[0];
2240 for ( i=1; i<srs->sr_state.numcsns; i++ ) {
2241 if ( ber_bvcmp( &mincsn, &srs->sr_state.ctxcsn[i] ) > 0 )
2242 mincsn = srs->sr_state.ctxcsn[i];
2245 /* If nothing has changed, shortcut it */
2246 if ( srs->sr_state.numcsns == numcsns ) {
2248 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2249 for ( j=0; j<numcsns; j++ ) {
2250 if ( srs->sr_state.sids[i] != sids[j] )
2252 if ( !bvmatch( &srs->sr_state.ctxcsn[i], &ctxcsn[j] ))
2253 changed = SS_CHANGED;
2261 no_change: if ( !(op->o_sync_mode & SLAP_SYNC_PERSIST) ) {
2262 LDAPControl *ctrls[2];
2266 syncprov_done_ctrl( op, rs, ctrls, 0, 0,
2267 NULL, LDAP_SYNC_REFRESH_DELETES );
2268 rs->sr_ctrls = ctrls;
2269 rs->sr_err = LDAP_SUCCESS;
2270 send_ldap_result( op, rs );
2271 rs->sr_ctrls = NULL;
2277 /* consumer doesn't have the right number of CSNs */
2278 changed = SS_CHANGED;
2280 /* Do we have a sessionlog for this search? */
2283 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
2284 /* Are there any log entries, and is the consumer state
2285 * present in the session log?
2287 if ( sl->sl_num > 0 && ber_bvcmp( &mincsn, &sl->sl_mincsn ) >= 0 ) {
2289 /* mutex is unlocked in playlog */
2290 syncprov_playlog( op, rs, sl, srs, ctxcsn, numcsns, sids );
2292 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
2295 /* Is the CSN still present in the database? */
2296 if ( syncprov_findcsn( op, FIND_CSN ) != LDAP_SUCCESS ) {
2297 /* No, so a reload is required */
2298 /* the 2.2 consumer doesn't send this hint */
2299 if ( si->si_usehint && srs->sr_rhint == 0 ) {
2301 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2303 op->o_tmpfree( sids, op->o_tmpmemctx );
2304 send_ldap_error( op, rs, LDAP_SYNC_REFRESH_REQUIRED, "sync cookie is stale" );
2309 /* If changed and doing Present lookup, send Present UUIDs */
2310 if ( do_present && syncprov_findcsn( op, FIND_PRESENT ) !=
2313 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2315 op->o_tmpfree( sids, op->o_tmpmemctx );
2316 send_ldap_result( op, rs );
2321 /* No consumer state, assume something has changed */
2322 changed = SS_CHANGED;
2326 /* Append CSN range to search filter, save original filter
2327 * for persistent search evaluation
2330 sop->s_filterstr= op->ors_filterstr;
2333 /* If something changed, find the changes */
2334 if ( gotstate && changed ) {
2335 Filter *fand, *fava;
2337 fand = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2338 fand->f_choice = LDAP_FILTER_AND;
2339 fand->f_next = NULL;
2340 fava = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2342 fava->f_choice = LDAP_FILTER_GE;
2343 fava->f_ava = op->o_tmpalloc( sizeof(AttributeAssertion), op->o_tmpmemctx );
2344 fava->f_ava->aa_desc = slap_schema.si_ad_entryCSN;
2345 #ifdef LDAP_COMP_MATCH
2346 fava->f_ava->aa_cf = NULL;
2348 ber_dupbv_x( &fava->f_ava->aa_value, &mincsn, op->o_tmpmemctx );
2349 fava->f_next = op->ors_filter;
2350 op->ors_filter = fand;
2351 filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2353 sop->s_flags |= PS_FIX_FILTER;
2356 /* Let our callback add needed info to returned entries */
2357 cb = op->o_tmpcalloc(1, sizeof(slap_callback)+sizeof(searchstate), op->o_tmpmemctx);
2358 ss = (searchstate *)(cb+1);
2361 ss->ss_flags = do_present | changed;
2362 ss->ss_ctxcsn = ctxcsn;
2363 ss->ss_numcsns = numcsns;
2365 cb->sc_response = syncprov_search_response;
2366 cb->sc_cleanup = syncprov_search_cleanup;
2367 cb->sc_private = ss;
2368 cb->sc_next = op->o_callback;
2369 op->o_callback = cb;
2371 /* If this is a persistent search and no changes were reported during
2372 * the refresh phase, just invoke the response callback to transition
2373 * us into persist phase
2376 rs->sr_err = LDAP_SUCCESS;
2377 rs->sr_nentries = 0;
2378 send_ldap_result( op, rs );
2381 return SLAP_CB_CONTINUE;
2385 syncprov_operational(
2389 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2390 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2392 /* This prevents generating unnecessarily; frontend will strip
2393 * any statically stored copy.
2395 if ( op->o_sync != SLAP_CONTROL_NONE )
2396 return SLAP_CB_CONTINUE;
2398 if ( rs->sr_entry &&
2399 dn_match( &rs->sr_entry->e_nname, op->o_bd->be_nsuffix )) {
2401 if ( SLAP_OPATTRS( rs->sr_attr_flags ) ||
2402 ad_inlist( slap_schema.si_ad_contextCSN, rs->sr_attrs )) {
2403 Attribute *a, **ap = NULL;
2405 for ( a=rs->sr_entry->e_attrs; a; a=a->a_next ) {
2406 if ( a->a_desc == slap_schema.si_ad_contextCSN )
2410 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2411 if ( si->si_ctxcsn ) {
2413 for ( ap = &rs->sr_operational_attrs; *ap;
2414 ap=&(*ap)->a_next );
2416 a = attr_alloc( slap_schema.si_ad_contextCSN );
2421 if ( !(rs->sr_flags & REP_ENTRY_MODIFIABLE) ) {
2422 Entry *e = entry_dup( rs->sr_entry );
2423 if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
2424 overlay_entry_release_ov( op, rs->sr_entry, 0, on );
2425 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
2426 } else if ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) {
2427 entry_free( rs->sr_entry );
2431 REP_ENTRY_MODIFIABLE|REP_ENTRY_MUSTBEFREED;
2432 a = attr_find( rs->sr_entry->e_attrs,
2433 slap_schema.si_ad_contextCSN );
2435 if ( a->a_nvals != a->a_vals ) {
2436 ber_bvarray_free( a->a_nvals );
2439 ber_bvarray_free( a->a_vals );
2443 attr_valadd( a, si->si_ctxcsn, si->si_ctxcsn, si->si_numcsns );
2445 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2448 return SLAP_CB_CONTINUE;
2458 static ConfigDriver sp_cf_gen;
2460 static ConfigTable spcfg[] = {
2461 { "syncprov-checkpoint", "ops> <minutes", 3, 3, 0, ARG_MAGIC|SP_CHKPT,
2462 sp_cf_gen, "( OLcfgOvAt:1.1 NAME 'olcSpCheckpoint' "
2463 "DESC 'ContextCSN checkpoint interval in ops and minutes' "
2464 "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
2465 { "syncprov-sessionlog", "ops", 2, 2, 0, ARG_INT|ARG_MAGIC|SP_SESSL,
2466 sp_cf_gen, "( OLcfgOvAt:1.2 NAME 'olcSpSessionlog' "
2467 "DESC 'Session log size in ops' "
2468 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
2469 { "syncprov-nopresent", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_NOPRES,
2470 sp_cf_gen, "( OLcfgOvAt:1.3 NAME 'olcSpNoPresent' "
2471 "DESC 'Omit Present phase processing' "
2472 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2473 { "syncprov-reloadhint", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_USEHINT,
2474 sp_cf_gen, "( OLcfgOvAt:1.4 NAME 'olcSpReloadHint' "
2475 "DESC 'Observe Reload Hint in Request control' "
2476 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2477 { NULL, NULL, 0, 0, 0, ARG_IGNORED }
2480 static ConfigOCs spocs[] = {
2481 { "( OLcfgOvOc:1.1 "
2482 "NAME 'olcSyncProvConfig' "
2483 "DESC 'SyncRepl Provider configuration' "
2484 "SUP olcOverlayConfig "
2485 "MAY ( olcSpCheckpoint $ olcSpSessionlog $ olcSpNoPresent ) )",
2486 Cft_Overlay, spcfg },
2491 sp_cf_gen(ConfigArgs *c)
2493 slap_overinst *on = (slap_overinst *)c->bi;
2494 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2497 if ( c->op == SLAP_CONFIG_EMIT ) {
2498 switch ( c->type ) {
2500 if ( si->si_chkops || si->si_chktime ) {
2502 bv.bv_len = snprintf( c->cr_msg, sizeof( c->cr_msg ),
2503 "%d %d", si->si_chkops, si->si_chktime );
2504 if ( bv.bv_len < 0 || bv.bv_len >= sizeof( c->cr_msg ) ) {
2507 bv.bv_val = c->cr_msg;
2508 value_add_one( &c->rvalue_vals, &bv );
2515 if ( si->si_logs ) {
2516 c->value_int = si->si_logs->sl_size;
2522 if ( si->si_nopres ) {
2529 if ( si->si_usehint ) {
2537 } else if ( c->op == LDAP_MOD_DELETE ) {
2538 switch ( c->type ) {
2545 si->si_logs->sl_size = 0;
2547 rc = LDAP_NO_SUCH_ATTRIBUTE;
2550 if ( si->si_nopres )
2553 rc = LDAP_NO_SUCH_ATTRIBUTE;
2556 if ( si->si_usehint )
2559 rc = LDAP_NO_SUCH_ATTRIBUTE;
2564 switch ( c->type ) {
2566 if ( lutil_atoi( &si->si_chkops, c->argv[1] ) != 0 ) {
2567 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint ops # \"%s\"",
2568 c->argv[0], c->argv[1] );
2569 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2570 "%s: %s\n", c->log, c->cr_msg, 0 );
2571 return ARG_BAD_CONF;
2573 if ( si->si_chkops <= 0 ) {
2574 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint ops # \"%d\"",
2575 c->argv[0], si->si_chkops );
2576 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2577 "%s: %s\n", c->log, c->cr_msg, 0 );
2578 return ARG_BAD_CONF;
2580 if ( lutil_atoi( &si->si_chktime, c->argv[2] ) != 0 ) {
2581 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint time \"%s\"",
2582 c->argv[0], c->argv[1] );
2583 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2584 "%s: %s\n", c->log, c->cr_msg, 0 );
2585 return ARG_BAD_CONF;
2587 if ( si->si_chktime <= 0 ) {
2588 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint time \"%d\"",
2589 c->argv[0], si->si_chkops );
2590 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2591 "%s: %s\n", c->log, c->cr_msg, 0 );
2592 return ARG_BAD_CONF;
2594 si->si_chktime *= 60;
2598 int size = c->value_int;
2601 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s size %d is negative",
2603 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2604 "%s: %s\n", c->log, c->cr_msg, 0 );
2605 return ARG_BAD_CONF;
2609 sl = ch_malloc( sizeof( sessionlog ) + LDAP_LUTIL_CSNSTR_BUFSIZE );
2610 sl->sl_mincsn.bv_val = (char *)(sl+1);
2611 sl->sl_mincsn.bv_len = 0;
2613 sl->sl_head = sl->sl_tail = NULL;
2614 ldap_pvt_thread_mutex_init( &sl->sl_mutex );
2621 si->si_nopres = c->value_int;
2624 si->si_usehint = c->value_int;
2630 /* ITS#3456 we cannot run this search on the main thread, must use a
2631 * child thread in order to insure we have a big enough stack.
2638 syncprov_findcsn( ptr, FIND_MAXCSN );
2642 /* Read any existing contextCSN from the underlying db.
2643 * Then search for any entries newer than that. If no value exists,
2644 * just generate it. Cache whatever result.
2652 slap_overinst *on = (slap_overinst *) be->bd_info;
2653 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2655 Connection conn = { 0 };
2656 OperationBuffer opbuf;
2661 void *thrctx = NULL;
2663 if ( !SLAP_LASTMOD( be )) {
2664 Debug( LDAP_DEBUG_ANY,
2665 "syncprov_db_open: invalid config, lastmod must be enabled\n", 0, 0, 0 );
2669 if ( slapMode & SLAP_TOOL_MODE ) {
2673 rc = overlay_register_control( be, LDAP_CONTROL_SYNC );
2678 thrctx = ldap_pvt_thread_pool_context();
2679 connection_fake_init( &conn, &opbuf, thrctx );
2682 op->o_dn = be->be_rootdn;
2683 op->o_ndn = be->be_rootndn;
2685 rc = overlay_entry_get_ov( op, be->be_nsuffix, NULL,
2686 slap_schema.si_ad_contextCSN, 0, &e, on );
2689 ldap_pvt_thread_t tid;
2691 a = attr_find( e->e_attrs, slap_schema.si_ad_contextCSN );
2693 ber_bvarray_dup_x( &si->si_ctxcsn, a->a_vals, NULL );
2694 si->si_numcsns = a->a_numvals;
2695 si->si_sids = slap_parse_csn_sids( si->si_ctxcsn, a->a_numvals, NULL );
2697 overlay_entry_release_ov( op, e, 0, on );
2698 if ( si->si_ctxcsn ) {
2699 op->o_req_dn = be->be_suffix[0];
2700 op->o_req_ndn = be->be_nsuffix[0];
2701 op->ors_scope = LDAP_SCOPE_SUBTREE;
2702 ldap_pvt_thread_create( &tid, 0, syncprov_db_otask, op );
2703 ldap_pvt_thread_join( tid, NULL );
2707 /* Didn't find a contextCSN, should we generate one? */
2708 if ( !si->si_ctxcsn ) {
2709 char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
2712 if ( SLAP_SYNC_SHADOW( op->o_bd )) {
2713 /* If we're also a consumer, then don't generate anything.
2714 * Wait for our provider to send it to us, or for a local
2715 * modify if we have multimaster.
2719 csn.bv_val = csnbuf;
2720 csn.bv_len = sizeof( csnbuf );
2721 slap_get_csn( op, &csn, 0 );
2722 value_add_one( &si->si_ctxcsn, &csn );
2724 si->si_sids = ch_malloc( sizeof(int) );
2725 si->si_sids[0] = slap_serverID;
2727 /* make sure we do a checkpoint on close */
2732 op->o_bd->bd_info = (BackendInfo *)on;
2736 /* Write the current contextCSN into the underlying db.
2744 slap_overinst *on = (slap_overinst *) be->bd_info;
2745 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2747 if ( slapMode & SLAP_TOOL_MODE ) {
2750 if ( si->si_numops ) {
2751 Connection conn = {0};
2752 OperationBuffer opbuf;
2754 SlapReply rs = {REP_RESULT};
2757 thrctx = ldap_pvt_thread_pool_context();
2758 connection_fake_init( &conn, &opbuf, thrctx );
2761 op->o_dn = be->be_rootdn;
2762 op->o_ndn = be->be_rootndn;
2763 syncprov_checkpoint( op, &rs, on );
2775 slap_overinst *on = (slap_overinst *)be->bd_info;
2776 syncprov_info_t *si;
2778 if ( SLAP_ISGLOBALOVERLAY( be ) ) {
2779 Debug( LDAP_DEBUG_ANY,
2780 "syncprov must be instantiated within a database.\n",
2785 si = ch_calloc(1, sizeof(syncprov_info_t));
2786 on->on_bi.bi_private = si;
2787 ldap_pvt_thread_rdwr_init( &si->si_csn_rwlock );
2788 ldap_pvt_thread_mutex_init( &si->si_ops_mutex );
2789 ldap_pvt_thread_mutex_init( &si->si_mods_mutex );
2791 csn_anlist[0].an_desc = slap_schema.si_ad_entryCSN;
2792 csn_anlist[0].an_name = slap_schema.si_ad_entryCSN->ad_cname;
2793 csn_anlist[1].an_desc = slap_schema.si_ad_entryUUID;
2794 csn_anlist[1].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2796 uuid_anlist[0].an_desc = slap_schema.si_ad_entryUUID;
2797 uuid_anlist[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2803 syncprov_db_destroy(
2808 slap_overinst *on = (slap_overinst *)be->bd_info;
2809 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2812 if ( si->si_logs ) {
2813 slog_entry *se = si->si_logs->sl_head;
2816 slog_entry *se_next = se->se_next;
2821 ch_free( si->si_logs );
2823 if ( si->si_ctxcsn )
2824 ber_bvarray_free( si->si_ctxcsn );
2826 ch_free( si->si_sids );
2827 ldap_pvt_thread_mutex_destroy( &si->si_mods_mutex );
2828 ldap_pvt_thread_mutex_destroy( &si->si_ops_mutex );
2829 ldap_pvt_thread_rdwr_destroy( &si->si_csn_rwlock );
2836 static int syncprov_parseCtrl (
2842 BerElementBuffer berbuf;
2843 BerElement *ber = (BerElement *)&berbuf;
2846 struct berval cookie = BER_BVNULL;
2850 if ( op->o_sync != SLAP_CONTROL_NONE ) {
2851 rs->sr_text = "Sync control specified multiple times";
2852 return LDAP_PROTOCOL_ERROR;
2855 if ( op->o_pagedresults != SLAP_CONTROL_NONE ) {
2856 rs->sr_text = "Sync control specified with pagedResults control";
2857 return LDAP_PROTOCOL_ERROR;
2860 if ( BER_BVISNULL( &ctrl->ldctl_value ) ) {
2861 rs->sr_text = "Sync control value is absent";
2862 return LDAP_PROTOCOL_ERROR;
2865 if ( BER_BVISEMPTY( &ctrl->ldctl_value ) ) {
2866 rs->sr_text = "Sync control value is empty";
2867 return LDAP_PROTOCOL_ERROR;
2870 /* Parse the control value
2871 * syncRequestValue ::= SEQUENCE {
2876 * refreshAndPersist (3)
2878 * cookie syncCookie OPTIONAL
2882 ber_init2( ber, &ctrl->ldctl_value, 0 );
2884 if ( (tag = ber_scanf( ber, "{i" /*}*/, &mode )) == LBER_ERROR ) {
2885 rs->sr_text = "Sync control : mode decoding error";
2886 return LDAP_PROTOCOL_ERROR;
2890 case LDAP_SYNC_REFRESH_ONLY:
2891 mode = SLAP_SYNC_REFRESH;
2893 case LDAP_SYNC_REFRESH_AND_PERSIST:
2894 mode = SLAP_SYNC_REFRESH_AND_PERSIST;
2897 rs->sr_text = "Sync control : unknown update mode";
2898 return LDAP_PROTOCOL_ERROR;
2901 tag = ber_peek_tag( ber, &len );
2903 if ( tag == LDAP_TAG_SYNC_COOKIE ) {
2904 if (( ber_scanf( ber, /*{*/ "m", &cookie )) == LBER_ERROR ) {
2905 rs->sr_text = "Sync control : cookie decoding error";
2906 return LDAP_PROTOCOL_ERROR;
2908 tag = ber_peek_tag( ber, &len );
2910 if ( tag == LDAP_TAG_RELOAD_HINT ) {
2911 if (( ber_scanf( ber, /*{*/ "b", &rhint )) == LBER_ERROR ) {
2912 rs->sr_text = "Sync control : rhint decoding error";
2913 return LDAP_PROTOCOL_ERROR;
2916 if (( ber_scanf( ber, /*{*/ "}")) == LBER_ERROR ) {
2917 rs->sr_text = "Sync control : decoding error";
2918 return LDAP_PROTOCOL_ERROR;
2920 sr = op->o_tmpcalloc( 1, sizeof(struct sync_control), op->o_tmpmemctx );
2921 sr->sr_rhint = rhint;
2922 if (!BER_BVISNULL(&cookie)) {
2923 ber_dupbv_x( &sr->sr_state.octet_str, &cookie, op->o_tmpmemctx );
2924 /* If parse fails, pretend no cookie was sent */
2925 if ( slap_parse_sync_cookie( &sr->sr_state, op->o_tmpmemctx ) ||
2926 sr->sr_state.rid == -1 ) {
2927 if ( sr->sr_state.ctxcsn ) {
2928 ber_bvarray_free_x( sr->sr_state.ctxcsn, op->o_tmpmemctx );
2929 sr->sr_state.ctxcsn = NULL;
2931 sr->sr_state.numcsns = 0;
2935 op->o_controls[slap_cids.sc_LDAPsync] = sr;
2937 op->o_sync = ctrl->ldctl_iscritical
2938 ? SLAP_CONTROL_CRITICAL
2939 : SLAP_CONTROL_NONCRITICAL;
2941 op->o_sync_mode |= mode; /* o_sync_mode shares o_sync */
2943 return LDAP_SUCCESS;
2946 /* This overlay is set up for dynamic loading via moduleload. For static
2947 * configuration, you'll need to arrange for the slap_overinst to be
2948 * initialized and registered by some other function inside slapd.
2951 static slap_overinst syncprov;
2954 syncprov_initialize()
2958 rc = register_supported_control( LDAP_CONTROL_SYNC,
2959 SLAP_CTRL_SEARCH, NULL,
2960 syncprov_parseCtrl, &slap_cids.sc_LDAPsync );
2961 if ( rc != LDAP_SUCCESS ) {
2962 Debug( LDAP_DEBUG_ANY,
2963 "syncprov_init: Failed to register control %d\n", rc, 0, 0 );
2967 syncprov.on_bi.bi_type = "syncprov";
2968 syncprov.on_bi.bi_db_init = syncprov_db_init;
2969 syncprov.on_bi.bi_db_destroy = syncprov_db_destroy;
2970 syncprov.on_bi.bi_db_open = syncprov_db_open;
2971 syncprov.on_bi.bi_db_close = syncprov_db_close;
2973 syncprov.on_bi.bi_op_abandon = syncprov_op_abandon;
2974 syncprov.on_bi.bi_op_cancel = syncprov_op_abandon;
2976 syncprov.on_bi.bi_op_add = syncprov_op_mod;
2977 syncprov.on_bi.bi_op_compare = syncprov_op_compare;
2978 syncprov.on_bi.bi_op_delete = syncprov_op_mod;
2979 syncprov.on_bi.bi_op_modify = syncprov_op_mod;
2980 syncprov.on_bi.bi_op_modrdn = syncprov_op_mod;
2981 syncprov.on_bi.bi_op_search = syncprov_op_search;
2982 syncprov.on_bi.bi_extended = syncprov_op_extended;
2983 syncprov.on_bi.bi_operational = syncprov_operational;
2985 syncprov.on_bi.bi_cf_ocs = spocs;
2987 generic_filter.f_desc = slap_schema.si_ad_objectClass;
2989 rc = config_register_schema( spcfg, spocs );
2990 if ( rc ) return rc;
2992 return overlay_register( &syncprov );
2995 #if SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC
2997 init_module( int argc, char *argv[] )
2999 return syncprov_initialize();
3001 #endif /* SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC */
3003 #endif /* defined(SLAPD_OVER_SYNCPROV) */