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 /* Use basic parameters from syncrepl search, but use
397 * current op's threadctx / tmpmemctx
399 ldap_pvt_thread_mutex_lock( &fc->fss->s_mutex );
400 if ( fc->fss->s_flags & PS_FIND_BASE ) {
401 slap_callback cb = {0};
403 SlapReply frs = { REP_RESULT };
406 fc->fss->s_flags ^= PS_FIND_BASE;
407 ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
409 fop = *fc->fss->s_op;
411 fop.o_bd = fop.o_bd->bd_self;
412 fop.o_hdr = op->o_hdr;
413 fop.o_time = op->o_time;
414 fop.o_tincr = op->o_tincr;
416 cb.sc_response = findbase_cb;
419 fop.o_sync_mode = 0; /* turn off sync mode */
420 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
421 fop.o_callback = &cb;
422 fop.o_tag = LDAP_REQ_SEARCH;
423 fop.ors_scope = LDAP_SCOPE_BASE;
424 fop.ors_limit = NULL;
426 fop.ors_tlimit = SLAP_NO_LIMIT;
427 fop.ors_attrs = slap_anlist_no_attrs;
428 fop.ors_attrsonly = 1;
429 fop.ors_filter = &generic_filter;
430 fop.ors_filterstr = generic_filterstr;
432 rc = fop.o_bd->be_search( &fop, &frs );
434 ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
438 /* After the first call, see if the fdn resides in the scope */
439 if ( fc->fbase == 1 ) {
440 switch ( fc->fss->s_op->ors_scope ) {
441 case LDAP_SCOPE_BASE:
442 fc->fscope = dn_match( fc->fdn, &fc->fss->s_base );
444 case LDAP_SCOPE_ONELEVEL: {
446 dnParent( fc->fdn, &pdn );
447 fc->fscope = dn_match( &pdn, &fc->fss->s_base );
449 case LDAP_SCOPE_SUBTREE:
450 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base );
452 case LDAP_SCOPE_SUBORDINATE:
453 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base ) &&
454 !dn_match( fc->fdn, &fc->fss->s_base );
462 /* If entryID has changed, then the base of this search has
463 * changed. Invalidate the psearch.
465 return LDAP_NO_SUCH_OBJECT;
469 * This function has three different purposes, but they all use a search
470 * that filters on entryCSN so they're combined here.
471 * 1: at startup time, after a contextCSN has been read from the database,
472 * we search for all entries with CSN >= contextCSN in case the contextCSN
473 * was not checkpointed at the previous shutdown.
475 * 2: when the current contextCSN is known and we have a sync cookie, we search
476 * for one entry with CSN = the cookie CSN. If not found, try <= cookie CSN.
477 * If an entry is found, the cookie CSN is valid, otherwise it is stale.
479 * 3: during a refresh phase, we search for all entries with CSN <= the cookie
480 * CSN, and generate Present records for them. We always collect this result
481 * in SyncID sets, even if there's only one match.
483 typedef enum find_csn_t {
490 findmax_cb( Operation *op, SlapReply *rs )
492 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
493 struct berval *maxcsn = op->o_callback->sc_private;
494 Attribute *a = attr_find( rs->sr_entry->e_attrs,
495 slap_schema.si_ad_entryCSN );
497 if ( a && ber_bvcmp( &a->a_vals[0], maxcsn ) > 0 &&
498 slap_parse_csn_sid( &a->a_vals[0] ) == slap_serverID ) {
499 maxcsn->bv_len = a->a_vals[0].bv_len;
500 strcpy( maxcsn->bv_val, a->a_vals[0].bv_val );
507 findcsn_cb( Operation *op, SlapReply *rs )
509 slap_callback *sc = op->o_callback;
511 /* We just want to know that at least one exists, so it's OK if
512 * we exceed the unchecked limit.
514 if ( rs->sr_err == LDAP_ADMINLIMIT_EXCEEDED ||
515 (rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS )) {
516 sc->sc_private = (void *)1;
521 /* Build a list of entryUUIDs for sending in a SyncID set */
525 typedef struct fpres_cookie {
532 findpres_cb( Operation *op, SlapReply *rs )
534 slap_callback *sc = op->o_callback;
535 fpres_cookie *pc = sc->sc_private;
537 int ret = SLAP_CB_CONTINUE;
539 switch ( rs->sr_type ) {
541 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
543 pc->uuids[pc->num].bv_val = pc->last;
544 AC_MEMCPY( pc->uuids[pc->num].bv_val, a->a_nvals[0].bv_val,
545 pc->uuids[pc->num].bv_len );
547 pc->last = pc->uuids[pc->num].bv_val;
548 pc->uuids[pc->num].bv_val = NULL;
551 if ( pc->num != SLAP_SYNCUUID_SET_SIZE )
557 ret = syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET, NULL,
559 pc->uuids[pc->num].bv_val = pc->last;
561 pc->last = pc->uuids[0].bv_val;
571 syncprov_findcsn( Operation *op, find_csn_t mode )
573 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
574 syncprov_info_t *si = on->on_bi.bi_private;
576 slap_callback cb = {0};
578 SlapReply frs = { REP_RESULT };
579 char buf[LDAP_LUTIL_CSNSTR_BUFSIZE + STRLENOF("(entryCSN<=)")];
580 char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
581 struct berval maxcsn;
583 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
584 fpres_cookie pcookie;
585 sync_control *srs = NULL;
586 struct slap_limits_set fc_limits;
587 int i, rc = LDAP_SUCCESS, findcsn_retry = 1;
590 if ( mode != FIND_MAXCSN ) {
591 srs = op->o_controls[slap_cids.sc_LDAPsync];
595 fop.o_sync_mode &= SLAP_CONTROL_MASK; /* turn off sync_mode */
596 /* We want pure entries, not referrals */
597 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
600 cf.f_av_desc = slap_schema.si_ad_entryCSN;
601 BER_BVZERO( &cf.f_av_value );
604 fop.o_callback = &cb;
605 fop.ors_limit = NULL;
606 fop.ors_tlimit = SLAP_NO_LIMIT;
607 fop.ors_filter = &cf;
608 fop.ors_filterstr.bv_val = buf;
613 cf.f_choice = LDAP_FILTER_GE;
614 /* If there are multiple CSNs, use the one with our serverID */
615 for ( i=0; i<si->si_numcsns; i++) {
616 if ( slap_serverID == si->si_sids[i] ) {
621 if ( i == si->si_numcsns ) {
622 /* No match: this is multimaster, and none of the content in the DB
623 * originated locally. Treat like no CSN.
625 return LDAP_NO_SUCH_OBJECT;
627 cf.f_av_value = si->si_ctxcsn[maxid];
628 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
629 "(entryCSN>=%s)", cf.f_av_value.bv_val );
630 if ( fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
633 fop.ors_attrsonly = 0;
634 fop.ors_attrs = csn_anlist;
635 fop.ors_slimit = SLAP_NO_LIMIT;
636 cb.sc_private = &maxcsn;
637 cb.sc_response = findmax_cb;
638 strcpy( cbuf, cf.f_av_value.bv_val );
639 maxcsn.bv_val = cbuf;
640 maxcsn.bv_len = cf.f_av_value.bv_len;
643 if ( BER_BVISEMPTY( &cf.f_av_value )) {
644 cf.f_av_value = srs->sr_state.ctxcsn[0];
645 /* If there are multiple CSNs, use the smallest */
646 for ( i=1; i<srs->sr_state.numcsns; i++ ) {
647 if ( ber_bvcmp( &cf.f_av_value, &srs->sr_state.ctxcsn[i] )
649 cf.f_av_value = srs->sr_state.ctxcsn[i];
653 /* Look for exact match the first time */
654 if ( findcsn_retry ) {
655 cf.f_choice = LDAP_FILTER_EQUALITY;
656 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
657 "(entryCSN=%s)", cf.f_av_value.bv_val );
658 /* On retry, look for <= */
660 cf.f_choice = LDAP_FILTER_LE;
661 fop.ors_limit = &fc_limits;
662 memset( &fc_limits, 0, sizeof( fc_limits ));
663 fc_limits.lms_s_unchecked = 1;
664 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
665 "(entryCSN<=%s)", cf.f_av_value.bv_val );
667 if ( fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
670 fop.ors_attrsonly = 1;
671 fop.ors_attrs = slap_anlist_no_attrs;
673 cb.sc_private = NULL;
674 cb.sc_response = findcsn_cb;
677 fop.ors_filter = op->ors_filter;
678 fop.ors_filterstr = op->ors_filterstr;
679 fop.ors_attrsonly = 0;
680 fop.ors_attrs = uuid_anlist;
681 fop.ors_slimit = SLAP_NO_LIMIT;
682 cb.sc_private = &pcookie;
683 cb.sc_response = findpres_cb;
686 /* preallocate storage for a full set */
687 pcookie.uuids = op->o_tmpalloc( (SLAP_SYNCUUID_SET_SIZE+1) *
688 sizeof(struct berval) + SLAP_SYNCUUID_SET_SIZE * UUID_LEN,
690 pcookie.last = (char *)(pcookie.uuids + SLAP_SYNCUUID_SET_SIZE+1);
691 pcookie.uuids[0].bv_val = pcookie.last;
692 pcookie.uuids[0].bv_len = UUID_LEN;
693 for (i=1; i<SLAP_SYNCUUID_SET_SIZE; i++) {
694 pcookie.uuids[i].bv_val = pcookie.uuids[i-1].bv_val + UUID_LEN;
695 pcookie.uuids[i].bv_len = UUID_LEN;
700 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
701 fop.o_bd->be_search( &fop, &frs );
702 fop.o_bd->bd_info = (BackendInfo *)on;
706 if ( ber_bvcmp( &si->si_ctxcsn[maxid], &maxcsn )) {
707 ber_bvreplace( &si->si_ctxcsn[maxid], &maxcsn );
708 si->si_numops++; /* ensure a checkpoint */
712 /* If matching CSN was not found, invalidate the context. */
713 if ( !cb.sc_private ) {
714 /* If we didn't find an exact match, then try for <= */
715 if ( findcsn_retry ) {
719 rc = LDAP_NO_SUCH_OBJECT;
723 op->o_tmpfree( pcookie.uuids, op->o_tmpmemctx );
731 syncprov_free_syncop( syncops *so )
733 syncres *sr, *srnext;
734 GroupAssertion *ga, *gnext;
736 ldap_pvt_thread_mutex_lock( &so->s_mutex );
737 if ( --so->s_inuse > 0 ) {
738 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
742 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
743 if ( ldap_pvt_runqueue_isrunning( &slapd_rq, so->s_qtask ) )
744 ldap_pvt_runqueue_stoptask( &slapd_rq, so->s_qtask );
745 ldap_pvt_runqueue_remove( &slapd_rq, so->s_qtask );
746 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
748 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
749 if ( so->s_flags & PS_IS_DETACHED ) {
750 filter_free( so->s_op->ors_filter );
751 for ( ga = so->s_op->o_groups; ga; ga=gnext ) {
757 ch_free( so->s_base.bv_val );
758 for ( sr=so->s_res; sr; sr=srnext ) {
762 ldap_pvt_thread_mutex_destroy( &so->s_mutex );
766 /* Send a persistent search response */
768 syncprov_sendresp( Operation *op, opcookie *opc, syncops *so,
769 Entry **e, int mode )
771 slap_overinst *on = opc->son;
773 SlapReply rs = { REP_SEARCH };
774 LDAPControl *ctrls[2];
775 struct berval cookie, csns[2];
777 Attribute a_uuid = {0};
779 if ( so->s_op->o_abandon )
780 return SLAPD_ABANDON;
783 csns[0] = opc->sctxcsn;
784 BER_BVZERO( &csns[1] );
785 slap_compose_sync_cookie( op, &cookie, csns, so->s_rid, so->s_sid );
787 Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: cookie=%s\n", cookie.bv_val, 0, 0 );
789 e_uuid.e_attrs = &a_uuid;
790 a_uuid.a_desc = slap_schema.si_ad_entryUUID;
791 a_uuid.a_nvals = &opc->suuid;
792 rs.sr_err = syncprov_state_ctrl( op, &rs, &e_uuid,
793 mode, ctrls, 0, 1, &cookie );
794 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
797 op->o_bd->bd_info = (BackendInfo *)on->on_info;
801 if ( rs.sr_entry->e_private )
802 rs.sr_flags = REP_ENTRY_MUSTRELEASE;
803 if ( opc->sreference ) {
804 rs.sr_ref = get_entry_referrals( op, rs.sr_entry );
805 rs.sr_err = send_search_reference( op, &rs );
806 ber_bvarray_free( rs.sr_ref );
812 case LDAP_SYNC_MODIFY:
814 if ( rs.sr_entry->e_private )
815 rs.sr_flags = REP_ENTRY_MUSTRELEASE;
816 rs.sr_attrs = op->ors_attrs;
817 rs.sr_err = send_search_entry( op, &rs );
821 case LDAP_SYNC_DELETE:
822 e_uuid.e_attrs = NULL;
823 e_uuid.e_name = opc->sdn;
824 e_uuid.e_nname = opc->sndn;
825 rs.sr_entry = &e_uuid;
826 if ( opc->sreference ) {
827 struct berval bv = BER_BVNULL;
829 rs.sr_err = send_search_reference( op, &rs );
831 rs.sr_err = send_search_entry( op, &rs );
837 /* In case someone else freed it already? */
839 op->o_tmpfree( rs.sr_ctrls[0], op->o_tmpmemctx );
846 /* Play back queued responses */
848 syncprov_qplay( Operation *op, struct re_s *rtask )
850 syncops *so = rtask->arg;
851 slap_overinst *on = LDAP_SLIST_FIRST(&so->s_op->o_extra)->oe_key;
860 ldap_pvt_thread_mutex_lock( &so->s_mutex );
863 so->s_res = sr->s_next;
865 so->s_restail = NULL;
866 /* Exit loop with mutex held */
867 if ( !sr || so->s_op->o_abandon )
869 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
872 opc.sndn = sr->s_ndn;
873 opc.suuid = sr->s_uuid;
874 opc.sctxcsn = sr->s_csn;
875 opc.sreference = sr->s_isreference;
878 if ( sr->s_mode != LDAP_SYNC_DELETE ) {
879 rc = overlay_entry_get_ov( op, &opc.sndn, NULL, NULL, 0, &e, on );
881 Debug( LDAP_DEBUG_SYNC, "syncprov_qplay: failed to get %s, "
882 "error (%d), ignoring...\n", opc.sndn.bv_val, rc, 0 );
888 rc = syncprov_sendresp( op, &opc, so, &e, sr->s_mode );
891 overlay_entry_release_ov( op, e, 0, on );
897 /* Exit loop with mutex held */
898 ldap_pvt_thread_mutex_lock( &so->s_mutex );
903 /* wait until we get explicitly scheduled again */
904 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
905 ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
907 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 1 );
909 /* bail out on any error */
910 ldap_pvt_runqueue_remove( &slapd_rq, rtask );
912 /* Prevent duplicate remove */
913 if ( so->s_qtask == rtask )
916 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
917 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
921 /* runqueue task for playing back queued responses */
923 syncprov_qtask( void *ctx, void *arg )
925 struct re_s *rtask = arg;
926 syncops *so = rtask->arg;
927 OperationBuffer opbuf;
934 op->o_hdr = &opbuf.ob_hdr;
935 op->o_controls = opbuf.ob_controls;
936 memset( op->o_controls, 0, sizeof(opbuf.ob_controls) );
938 *op->o_hdr = *so->s_op->o_hdr;
940 op->o_tmpmemctx = slap_sl_mem_create(SLAP_SLAB_SIZE, SLAP_SLAB_STACK, ctx, 1);
941 op->o_tmpmfuncs = &slap_sl_mfuncs;
942 op->o_threadctx = ctx;
944 /* syncprov_qplay expects a fake db */
945 be = *so->s_op->o_bd;
946 be.be_flags |= SLAP_DBFLAG_OVERLAY;
948 LDAP_SLIST_FIRST(&op->o_extra) = NULL;
949 op->o_callback = NULL;
951 rc = syncprov_qplay( op, rtask );
953 /* decrement use count... */
954 syncprov_free_syncop( so );
956 #if 0 /* FIXME: connection_close isn't exported from slapd.
960 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
961 if ( connection_state_closing( op->o_conn )) {
962 connection_close( op->o_conn );
964 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
970 /* Start the task to play back queued psearch responses */
972 syncprov_qstart( syncops *so )
975 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
976 if ( !so->s_qtask ) {
977 so->s_qtask = ldap_pvt_runqueue_insert( &slapd_rq, RUNQ_INTERVAL,
978 syncprov_qtask, so, "syncprov_qtask",
979 so->s_op->o_conn->c_peer_name.bv_val );
983 if (!ldap_pvt_runqueue_isrunning( &slapd_rq, so->s_qtask ) &&
984 !so->s_qtask->next_sched.tv_sec ) {
985 so->s_qtask->interval.tv_sec = 0;
986 ldap_pvt_runqueue_resched( &slapd_rq, so->s_qtask, 0 );
987 so->s_qtask->interval.tv_sec = RUNQ_INTERVAL;
992 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
994 slap_wake_listener();
997 /* Queue a persistent search response */
999 syncprov_qresp( opcookie *opc, syncops *so, int mode )
1004 /* Don't send changes back to their originator */
1005 sid = slap_parse_csn_sid( &opc->sctxcsn );
1006 if ( sid >= 0 && sid == so->s_sid )
1007 return LDAP_SUCCESS;
1009 srsize = sizeof(syncres) + opc->suuid.bv_len + 1 +
1010 opc->sdn.bv_len + 1 + opc->sndn.bv_len + 1;
1011 if ( opc->sctxcsn.bv_len )
1012 srsize += opc->sctxcsn.bv_len + 1;
1013 sr = ch_malloc( srsize );
1015 sr->s_dn.bv_val = (char *)(sr + 1);
1016 sr->s_dn.bv_len = opc->sdn.bv_len;
1018 sr->s_isreference = opc->sreference;
1019 sr->s_ndn.bv_val = lutil_strcopy( sr->s_dn.bv_val,
1020 opc->sdn.bv_val ) + 1;
1021 sr->s_ndn.bv_len = opc->sndn.bv_len;
1022 sr->s_uuid.bv_val = lutil_strcopy( sr->s_ndn.bv_val,
1023 opc->sndn.bv_val ) + 1;
1024 sr->s_uuid.bv_len = opc->suuid.bv_len;
1025 AC_MEMCPY( sr->s_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1026 if ( opc->sctxcsn.bv_len ) {
1027 sr->s_csn.bv_val = sr->s_uuid.bv_val + sr->s_uuid.bv_len + 1;
1028 strcpy( sr->s_csn.bv_val, opc->sctxcsn.bv_val );
1030 sr->s_csn.bv_val = NULL;
1032 sr->s_csn.bv_len = opc->sctxcsn.bv_len;
1034 ldap_pvt_thread_mutex_lock( &so->s_mutex );
1038 so->s_restail->s_next = sr;
1042 /* If the base of the psearch was modified, check it next time round */
1043 if ( so->s_flags & PS_WROTE_BASE ) {
1044 so->s_flags ^= PS_WROTE_BASE;
1045 so->s_flags |= PS_FIND_BASE;
1047 if ( so->s_flags & PS_IS_DETACHED ) {
1048 syncprov_qstart( so );
1050 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
1051 return LDAP_SUCCESS;
1055 syncprov_drop_psearch( syncops *so, int lock )
1057 if ( so->s_flags & PS_IS_DETACHED ) {
1059 ldap_pvt_thread_mutex_lock( &so->s_op->o_conn->c_mutex );
1060 so->s_op->o_conn->c_n_ops_executing--;
1061 so->s_op->o_conn->c_n_ops_completed++;
1062 LDAP_STAILQ_REMOVE( &so->s_op->o_conn->c_ops, so->s_op, Operation,
1065 ldap_pvt_thread_mutex_unlock( &so->s_op->o_conn->c_mutex );
1067 syncprov_free_syncop( so );
1073 syncprov_ab_cleanup( Operation *op, SlapReply *rs )
1075 slap_callback *sc = op->o_callback;
1076 op->o_callback = sc->sc_next;
1077 syncprov_drop_psearch( op->o_callback->sc_private, 0 );
1078 op->o_tmpfree( sc, op->o_tmpmemctx );
1083 syncprov_op_abandon( Operation *op, SlapReply *rs )
1085 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1086 syncprov_info_t *si = on->on_bi.bi_private;
1087 syncops *so, *soprev;
1089 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1090 for ( so=si->si_ops, soprev = (syncops *)&si->si_ops; so;
1091 soprev=so, so=so->s_next ) {
1092 if ( so->s_op->o_connid == op->o_connid &&
1093 so->s_op->o_msgid == op->orn_msgid ) {
1094 so->s_op->o_abandon = 1;
1095 soprev->s_next = so->s_next;
1099 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1101 /* Is this really a Cancel exop? */
1102 if ( op->o_tag != LDAP_REQ_ABANDON ) {
1103 so->s_op->o_cancel = SLAP_CANCEL_ACK;
1104 rs->sr_err = LDAP_CANCELLED;
1105 send_ldap_result( so->s_op, rs );
1106 if ( so->s_flags & PS_IS_DETACHED ) {
1108 cb = op->o_tmpcalloc( 1, sizeof(slap_callback), op->o_tmpmemctx );
1109 cb->sc_cleanup = syncprov_ab_cleanup;
1110 cb->sc_next = op->o_callback;
1111 cb->sc_private = so;
1112 return SLAP_CB_CONTINUE;
1115 syncprov_drop_psearch( so, 0 );
1117 return SLAP_CB_CONTINUE;
1120 /* Find which persistent searches are affected by this operation */
1122 syncprov_matchops( Operation *op, opcookie *opc, int saveit )
1124 slap_overinst *on = opc->son;
1125 syncprov_info_t *si = on->on_bi.bi_private;
1128 syncops *ss, *sprev, *snext;
1132 struct berval newdn;
1134 BackendDB *b0 = op->o_bd, db;
1136 fc.fdn = &op->o_req_ndn;
1137 /* compute new DN */
1138 if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1140 if ( op->orr_nnewSup ) pdn = *op->orr_nnewSup;
1141 else dnParent( fc.fdn, &pdn );
1142 build_new_dn( &newdn, &pdn, &op->orr_nnewrdn, op->o_tmpmemctx );
1146 if ( op->o_tag != LDAP_REQ_ADD ) {
1147 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1151 rc = overlay_entry_get_ov( op, fc.fdn, NULL, NULL, 0, &e, on );
1152 /* If we're sending responses now, make a copy and unlock the DB */
1153 if ( e && !saveit ) {
1154 Entry *e2 = entry_dup( e );
1155 overlay_entry_release_ov( op, e, 0, on );
1166 if ( saveit || op->o_tag == LDAP_REQ_ADD ) {
1167 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1168 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1169 opc->sreference = is_entry_referral( e );
1170 a = attr_find( e->e_attrs, slap_schema.si_ad_entryUUID );
1172 ber_dupbv_x( &opc->suuid, &a->a_nvals[0], op->o_tmpmemctx );
1173 } else if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1174 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1175 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1176 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1177 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1180 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1181 for (ss = si->si_ops, sprev = (syncops *)&si->si_ops; ss;
1182 sprev = ss, ss=snext)
1190 if ( ss->s_op->o_abandon )
1198 /* If the base of the search is missing, signal a refresh */
1199 rc = syncprov_findbase( op, &fc );
1200 if ( rc != LDAP_SUCCESS ) {
1201 SlapReply rs = {REP_RESULT};
1202 send_ldap_error( ss->s_op, &rs, LDAP_SYNC_REFRESH_REQUIRED,
1203 "search base has changed" );
1204 sprev->s_next = snext;
1205 syncprov_drop_psearch( ss, 1 );
1211 /* If we're sending results now, look for this op in old matches */
1215 /* Did we modify the search base? */
1216 if ( dn_match( &op->o_req_ndn, &ss->s_base )) {
1217 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1218 ss->s_flags |= PS_WROTE_BASE;
1219 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1222 for ( sm=opc->smatches, old=(syncmatches *)&opc->smatches; sm;
1223 old=sm, sm=sm->sm_next ) {
1224 if ( sm->sm_op == ss ) {
1226 old->sm_next = sm->sm_next;
1227 op->o_tmpfree( sm, op->o_tmpmemctx );
1236 oh.oh_conn = ss->s_op->o_conn;
1237 oh.oh_connid = ss->s_op->o_connid;
1239 op2.o_extra = op->o_extra;
1242 /* check if current o_req_dn is in scope and matches filter */
1243 if ( fc.fscope && test_filter( &op2, e, ss->s_op->ors_filter ) ==
1244 LDAP_COMPARE_TRUE ) {
1246 sm = op->o_tmpalloc( sizeof(syncmatches), op->o_tmpmemctx );
1247 sm->sm_next = opc->smatches;
1249 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1251 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1254 /* if found send UPDATE else send ADD */
1255 syncprov_qresp( opc, ss,
1256 found ? LDAP_SYNC_MODIFY : LDAP_SYNC_ADD );
1258 } else if ( !saveit && found ) {
1260 syncprov_qresp( opc, ss, LDAP_SYNC_DELETE );
1263 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1265 if ( op->o_tag != LDAP_REQ_ADD && e ) {
1266 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1269 overlay_entry_release_ov( op, e, 0, on );
1273 op->o_tmpfree( fc.fdn->bv_val, op->o_tmpmemctx );
1279 syncprov_op_cleanup( Operation *op, SlapReply *rs )
1281 slap_callback *cb = op->o_callback;
1282 opcookie *opc = cb->sc_private;
1283 slap_overinst *on = opc->son;
1284 syncprov_info_t *si = on->on_bi.bi_private;
1285 syncmatches *sm, *snext;
1286 modtarget *mt, mtdummy;
1288 for (sm = opc->smatches; sm; sm=snext) {
1289 snext = sm->sm_next;
1290 syncprov_free_syncop( sm->sm_op );
1291 op->o_tmpfree( sm, op->o_tmpmemctx );
1294 /* Remove op from lock table */
1296 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1297 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
1299 modinst *mi = mt->mt_mods;
1301 /* If there are more, promote the next one */
1302 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1303 if ( mi->mi_next ) {
1304 mt->mt_mods = mi->mi_next;
1305 mt->mt_op = mt->mt_mods->mi_op;
1306 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1308 avl_delete( &si->si_mods, mt, sp_avl_cmp );
1309 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1310 ldap_pvt_thread_mutex_destroy( &mt->mt_mutex );
1314 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1315 if ( !BER_BVISNULL( &opc->suuid ))
1316 op->o_tmpfree( opc->suuid.bv_val, op->o_tmpmemctx );
1317 if ( !BER_BVISNULL( &opc->sndn ))
1318 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1319 if ( !BER_BVISNULL( &opc->sdn ))
1320 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1321 op->o_callback = cb->sc_next;
1322 op->o_tmpfree(cb, op->o_tmpmemctx);
1328 syncprov_checkpoint( Operation *op, SlapReply *rs, slap_overinst *on )
1330 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
1333 SlapReply rsm = { 0 };
1334 slap_callback cb = {0};
1337 mod.sml_numvals = si->si_numcsns;
1338 mod.sml_values = si->si_ctxcsn;
1339 mod.sml_nvalues = NULL;
1340 mod.sml_desc = slap_schema.si_ad_contextCSN;
1341 mod.sml_op = LDAP_MOD_REPLACE;
1342 mod.sml_flags = SLAP_MOD_INTERNAL;
1343 mod.sml_next = NULL;
1345 cb.sc_response = slap_null_cb;
1347 opm.o_tag = LDAP_REQ_MODIFY;
1348 opm.o_callback = &cb;
1349 opm.orm_modlist = &mod;
1350 opm.orm_no_opattrs = 1;
1351 if ( SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1352 be = *on->on_info->oi_origdb;
1355 opm.o_req_dn = opm.o_bd->be_suffix[0];
1356 opm.o_req_ndn = opm.o_bd->be_nsuffix[0];
1357 opm.o_bd->bd_info = on->on_info->oi_orig;
1358 opm.o_managedsait = SLAP_CONTROL_NONCRITICAL;
1359 opm.o_no_schema_check = 1;
1360 opm.o_bd->be_modify( &opm, &rsm );
1361 if ( mod.sml_next != NULL ) {
1362 slap_mods_free( mod.sml_next, 1 );
1367 syncprov_add_slog( Operation *op )
1369 opcookie *opc = op->o_callback->sc_private;
1370 slap_overinst *on = opc->son;
1371 syncprov_info_t *si = on->on_bi.bi_private;
1377 /* Allocate a record. UUIDs are not NUL-terminated. */
1378 se = ch_malloc( sizeof( slog_entry ) + opc->suuid.bv_len +
1379 op->o_csn.bv_len + 1 );
1381 se->se_tag = op->o_tag;
1383 se->se_uuid.bv_val = (char *)(&se[1]);
1384 AC_MEMCPY( se->se_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1385 se->se_uuid.bv_len = opc->suuid.bv_len;
1387 se->se_csn.bv_val = se->se_uuid.bv_val + opc->suuid.bv_len;
1388 AC_MEMCPY( se->se_csn.bv_val, op->o_csn.bv_val, op->o_csn.bv_len );
1389 se->se_csn.bv_val[op->o_csn.bv_len] = '\0';
1390 se->se_csn.bv_len = op->o_csn.bv_len;
1391 se->se_sid = slap_parse_csn_sid( &se->se_csn );
1393 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1394 if ( sl->sl_head ) {
1395 sl->sl_tail->se_next = se;
1401 while ( sl->sl_num > sl->sl_size ) {
1403 sl->sl_head = se->se_next;
1404 strcpy( sl->sl_mincsn.bv_val, se->se_csn.bv_val );
1405 sl->sl_mincsn.bv_len = se->se_csn.bv_len;
1409 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1413 /* Just set a flag if we found the matching entry */
1415 playlog_cb( Operation *op, SlapReply *rs )
1417 if ( rs->sr_type == REP_SEARCH ) {
1418 op->o_callback->sc_private = (void *)1;
1423 /* enter with sl->sl_mutex locked, release before returning */
1425 syncprov_playlog( Operation *op, SlapReply *rs, sessionlog *sl,
1426 sync_control *srs, BerVarray ctxcsn, int numcsns, int *sids )
1428 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1430 int i, j, ndel, num, nmods, mmods;
1431 char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
1433 struct berval delcsn[2];
1435 if ( !sl->sl_num ) {
1436 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1444 uuids = op->o_tmpalloc( (num+1) * sizeof( struct berval ) +
1445 num * UUID_LEN, op->o_tmpmemctx );
1446 uuids[0].bv_val = (char *)(uuids + num + 1);
1448 delcsn[0].bv_len = 0;
1449 delcsn[0].bv_val = cbuf;
1450 BER_BVZERO(&delcsn[1]);
1452 /* Make a copy of the relevant UUIDs. Put the Deletes up front
1453 * and everything else at the end. Do this first so we can
1454 * unlock the list mutex.
1456 Debug( LDAP_DEBUG_SYNC, "srs csn %s\n",
1457 srs->sr_state.ctxcsn[0].bv_val, 0, 0 );
1458 for ( se=sl->sl_head; se; se=se->se_next ) {
1460 Debug( LDAP_DEBUG_SYNC, "log csn %s\n", se->se_csn.bv_val, 0, 0 );
1462 for ( k=0; k<srs->sr_state.numcsns; k++ ) {
1463 if ( se->se_sid == srs->sr_state.sids[k] ) {
1464 ndel = ber_bvcmp( &se->se_csn, &srs->sr_state.ctxcsn[k] );
1469 Debug( LDAP_DEBUG_SYNC, "cmp %d, too old\n", ndel, 0, 0 );
1473 for ( k=0; k<numcsns; k++ ) {
1474 if ( se->se_sid == sids[k] ) {
1475 ndel = ber_bvcmp( &se->se_csn, &ctxcsn[k] );
1480 Debug( LDAP_DEBUG_SYNC, "cmp %d, too new\n", ndel, 0, 0 );
1483 if ( se->se_tag == LDAP_REQ_DELETE ) {
1486 AC_MEMCPY( cbuf, se->se_csn.bv_val, se->se_csn.bv_len );
1487 delcsn[0].bv_len = se->se_csn.bv_len;
1488 delcsn[0].bv_val[delcsn[0].bv_len] = '\0';
1493 uuids[j].bv_val = uuids[0].bv_val + (j * UUID_LEN);
1494 AC_MEMCPY(uuids[j].bv_val, se->se_uuid.bv_val, UUID_LEN);
1495 uuids[j].bv_len = UUID_LEN;
1497 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1501 /* Zero out unused slots */
1502 for ( i=ndel; i < num - nmods; i++ )
1503 uuids[i].bv_len = 0;
1505 /* Mods must be validated to see if they belong in this delete set.
1509 /* Strip any duplicates */
1510 for ( i=0; i<nmods; i++ ) {
1511 for ( j=0; j<ndel; j++ ) {
1512 if ( bvmatch( &uuids[j], &uuids[num - 1 - i] )) {
1513 uuids[num - 1 - i].bv_len = 0;
1518 if ( uuids[num - 1 - i].bv_len == 0 ) continue;
1519 for ( j=0; j<i; j++ ) {
1520 if ( bvmatch( &uuids[num - 1 - j], &uuids[num - 1 - i] )) {
1521 uuids[num - 1 - i].bv_len = 0;
1530 SlapReply frs = { REP_RESULT };
1533 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
1534 slap_callback cb = {0};
1538 fop.o_sync_mode = 0;
1539 fop.o_callback = &cb;
1540 fop.ors_limit = NULL;
1541 fop.ors_tlimit = SLAP_NO_LIMIT;
1542 fop.ors_attrs = slap_anlist_all_attributes;
1543 fop.ors_attrsonly = 0;
1544 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
1546 af.f_choice = LDAP_FILTER_AND;
1549 mf.f_choice = LDAP_FILTER_EQUALITY;
1551 mf.f_av_desc = slap_schema.si_ad_entryUUID;
1552 mf.f_next = fop.ors_filter;
1554 fop.ors_filter = ⁡
1556 cb.sc_response = playlog_cb;
1557 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
1559 for ( i=ndel; i<num; i++ ) {
1560 if ( uuids[i].bv_len == 0 ) continue;
1562 mf.f_av_value = uuids[i];
1563 cb.sc_private = NULL;
1565 frs.sr_nentries = 0;
1566 rc = fop.o_bd->be_search( &fop, &frs );
1568 /* If entry was not found, add to delete list */
1569 if ( !cb.sc_private ) {
1570 uuids[ndel++] = uuids[i];
1573 fop.o_bd->bd_info = (BackendInfo *)on;
1576 struct berval cookie;
1578 if ( delcsn[0].bv_len ) {
1579 slap_compose_sync_cookie( op, &cookie, delcsn, srs->sr_state.rid,
1580 srs->sr_state.sid );
1582 Debug( LDAP_DEBUG_SYNC, "syncprov_playlog: cookie=%s\n", cookie.bv_val, 0, 0 );
1585 uuids[ndel].bv_val = NULL;
1586 syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET,
1587 delcsn[0].bv_len ? &cookie : NULL, 0, uuids, 1 );
1588 if ( delcsn[0].bv_len ) {
1589 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
1592 op->o_tmpfree( uuids, op->o_tmpmemctx );
1596 syncprov_op_response( Operation *op, SlapReply *rs )
1598 opcookie *opc = op->o_callback->sc_private;
1599 slap_overinst *on = opc->son;
1600 syncprov_info_t *si = on->on_bi.bi_private;
1603 if ( rs->sr_err == LDAP_SUCCESS )
1605 struct berval maxcsn = BER_BVNULL;
1606 char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
1607 int do_check = 0, have_psearches, foundit;
1609 /* Update our context CSN */
1611 ldap_pvt_thread_rdwr_wlock( &si->si_csn_rwlock );
1612 slap_get_commit_csn( op, &maxcsn, &foundit );
1613 if ( BER_BVISNULL( &maxcsn ) && SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1614 /* syncrepl queues the CSN values in the db where
1615 * it is configured , not where the changes are made.
1616 * So look for a value in the glue db if we didn't
1617 * find any in this db.
1619 BackendDB *be = op->o_bd;
1620 op->o_bd = select_backend( &be->be_nsuffix[0], 1);
1621 slap_get_commit_csn( op, &maxcsn, &foundit );
1624 if ( !BER_BVISNULL( &maxcsn ) ) {
1626 strcpy( cbuf, maxcsn.bv_val );
1627 sid = slap_parse_csn_sid( &maxcsn );
1628 for ( i=0; i<si->si_numcsns; i++ ) {
1629 if ( sid == si->si_sids[i] ) {
1630 if ( ber_bvcmp( &maxcsn, &si->si_ctxcsn[i] ) > 0 ) {
1631 ber_bvreplace( &si->si_ctxcsn[i], &maxcsn );
1636 /* It's a new SID for us */
1637 if ( i == si->si_numcsns ) {
1638 value_add_one( &si->si_ctxcsn, &maxcsn );
1640 si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
1642 si->si_sids[i] = sid;
1644 } else if ( !foundit ) {
1645 /* internal ops that aren't meant to be replicated */
1646 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1647 return SLAP_CB_CONTINUE;
1650 /* Don't do any processing for consumer contextCSN updates */
1651 if ( SLAP_SYNC_SHADOW( op->o_bd ) &&
1652 op->o_msgid == SLAP_SYNC_UPDATE_MSGID ) {
1653 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1654 return SLAP_CB_CONTINUE;
1658 if ( si->si_chkops || si->si_chktime ) {
1659 if ( si->si_chkops && si->si_numops >= si->si_chkops ) {
1663 if ( si->si_chktime &&
1664 (op->o_time - si->si_chklast >= si->si_chktime )) {
1665 if ( si->si_chklast ) {
1667 si->si_chklast = op->o_time;
1673 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1676 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1677 syncprov_checkpoint( op, rs, on );
1678 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1681 /* only update consumer ctx if this is the greatest csn */
1682 if ( bvmatch( &maxcsn, &op->o_csn )) {
1683 opc->sctxcsn.bv_len = maxcsn.bv_len;
1684 opc->sctxcsn.bv_val = cbuf;
1687 /* Handle any persistent searches */
1688 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1689 have_psearches = ( si->si_ops != NULL );
1690 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1691 if ( have_psearches ) {
1694 case LDAP_REQ_MODIFY:
1695 case LDAP_REQ_MODRDN:
1696 case LDAP_REQ_EXTENDED:
1697 syncprov_matchops( op, opc, 0 );
1699 case LDAP_REQ_DELETE:
1700 /* for each match in opc->smatches:
1703 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1704 if ( sm->sm_op->s_op->o_abandon )
1706 syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_DELETE );
1712 /* Add any log records */
1713 if ( si->si_logs && op->o_tag != LDAP_REQ_ADD ) {
1714 syncprov_add_slog( op );
1718 return SLAP_CB_CONTINUE;
1721 /* We don't use a subentry to store the context CSN any more.
1722 * We expose the current context CSN as an operational attribute
1723 * of the suffix entry.
1726 syncprov_op_compare( Operation *op, SlapReply *rs )
1728 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1729 syncprov_info_t *si = on->on_bi.bi_private;
1730 int rc = SLAP_CB_CONTINUE;
1732 if ( dn_match( &op->o_req_ndn, op->o_bd->be_nsuffix ) &&
1733 op->oq_compare.rs_ava->aa_desc == slap_schema.si_ad_contextCSN )
1738 e.e_name = op->o_bd->be_suffix[0];
1739 e.e_nname = op->o_bd->be_nsuffix[0];
1742 a.a_desc = slap_schema.si_ad_contextCSN;
1744 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1746 a.a_vals = si->si_ctxcsn;
1747 a.a_nvals = a.a_vals;
1749 rs->sr_err = access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc,
1750 &op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL );
1751 if ( ! rs->sr_err ) {
1752 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1753 goto return_results;
1756 if ( get_assert( op ) &&
1757 ( test_filter( op, &e, get_assertion( op ) ) != LDAP_COMPARE_TRUE ) )
1759 rs->sr_err = LDAP_ASSERTION_FAILED;
1760 goto return_results;
1764 rs->sr_err = LDAP_COMPARE_FALSE;
1766 if ( attr_valfind( &a,
1767 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
1768 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
1769 &op->oq_compare.rs_ava->aa_value, NULL, op->o_tmpmemctx ) == 0 )
1771 rs->sr_err = LDAP_COMPARE_TRUE;
1776 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1778 send_ldap_result( op, rs );
1780 if( rs->sr_err == LDAP_COMPARE_FALSE || rs->sr_err == LDAP_COMPARE_TRUE ) {
1781 rs->sr_err = LDAP_SUCCESS;
1790 syncprov_op_mod( Operation *op, SlapReply *rs )
1792 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1793 syncprov_info_t *si = on->on_bi.bi_private;
1796 int have_psearches, cbsize;
1798 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1799 have_psearches = ( si->si_ops != NULL );
1800 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1802 cbsize = sizeof(slap_callback) + sizeof(opcookie) +
1803 (have_psearches ? sizeof(modinst) : 0 );
1805 cb = op->o_tmpcalloc(1, cbsize, op->o_tmpmemctx);
1806 opc = (opcookie *)(cb+1);
1808 cb->sc_response = syncprov_op_response;
1809 cb->sc_cleanup = syncprov_op_cleanup;
1810 cb->sc_private = opc;
1811 cb->sc_next = op->o_callback;
1812 op->o_callback = cb;
1814 /* If there are active persistent searches, lock this operation.
1815 * See seqmod.c for the locking logic on its own.
1817 if ( have_psearches ) {
1818 modtarget *mt, mtdummy;
1821 mi = (modinst *)(opc+1);
1824 /* See if we're already modifying this entry... */
1826 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1827 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
1829 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1830 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1831 mt->mt_tail->mi_next = mi;
1833 /* wait for this op to get to head of list */
1834 while ( mt->mt_mods != mi ) {
1835 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1836 /* FIXME: if dynamic config can delete overlays or
1837 * databases we'll have to check for cleanup here.
1838 * Currently it's not an issue because there are
1839 * no dynamic config deletes...
1841 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
1842 ldap_pvt_thread_yield();
1843 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1845 /* clean up if the caller is giving up */
1846 if ( op->o_abandon ) {
1848 for ( m2 = mt->mt_mods; m2->mi_next != mi;
1850 m2->mi_next = mi->mi_next;
1851 if ( mt->mt_tail == mi ) mt->mt_tail = m2;
1852 op->o_tmpfree( cb, op->o_tmpmemctx );
1853 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1854 return SLAPD_ABANDON;
1857 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1859 /* Record that we're modifying this entry now */
1860 mt = ch_malloc( sizeof(modtarget) );
1863 mt->mt_op = mi->mi_op;
1864 ldap_pvt_thread_mutex_init( &mt->mt_mutex );
1865 avl_insert( &si->si_mods, mt, sp_avl_cmp, avl_dup_error );
1866 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1870 if (( have_psearches || si->si_logs ) && op->o_tag != LDAP_REQ_ADD )
1871 syncprov_matchops( op, opc, 1 );
1873 return SLAP_CB_CONTINUE;
1877 syncprov_op_extended( Operation *op, SlapReply *rs )
1879 if ( exop_is_write( op ))
1880 return syncprov_op_mod( op, rs );
1882 return SLAP_CB_CONTINUE;
1885 typedef struct searchstate {
1886 slap_overinst *ss_on;
1888 BerVarray ss_ctxcsn;
1891 #define SS_PRESENT 0x01
1892 #define SS_CHANGED 0x02
1897 syncprov_search_cleanup( Operation *op, SlapReply *rs )
1899 if ( rs->sr_ctrls ) {
1900 op->o_tmpfree( rs->sr_ctrls[0], op->o_tmpmemctx );
1901 op->o_tmpfree( rs->sr_ctrls, op->o_tmpmemctx );
1902 rs->sr_ctrls = NULL;
1907 typedef struct SyncOperationBuffer {
1911 AttributeName sob_extra; /* not always present */
1912 /* Further data allocated here */
1913 } SyncOperationBuffer;
1916 syncprov_detach_op( Operation *op, syncops *so, slap_overinst *on )
1918 SyncOperationBuffer *sopbuf2;
1923 GroupAssertion *g1, *g2;
1925 /* count the search attrs */
1926 for (i=0; op->ors_attrs && !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
1927 alen += op->ors_attrs[i].an_name.bv_len + 1;
1929 /* Make a new copy of the operation */
1930 size = offsetof( SyncOperationBuffer, sob_extra ) +
1931 (i ? ( (i+1) * sizeof(AttributeName) + alen) : 0) +
1932 op->o_req_dn.bv_len + 1 +
1933 op->o_req_ndn.bv_len + 1 +
1934 op->o_ndn.bv_len + 1 +
1935 so->s_filterstr.bv_len + 1;
1936 sopbuf2 = ch_calloc( 1, size );
1937 op2 = &sopbuf2->sob_op;
1938 op2->o_hdr = &sopbuf2->sob_hdr;
1939 LDAP_SLIST_FIRST(&op2->o_extra) = &sopbuf2->sob_oe;
1941 /* Copy the fields we care about explicitly, leave the rest alone */
1942 *op2->o_hdr = *op->o_hdr;
1943 op2->o_tag = op->o_tag;
1944 op2->o_time = op->o_time;
1945 op2->o_bd = on->on_info->oi_origdb;
1946 op2->o_request = op->o_request;
1947 LDAP_SLIST_FIRST(&op2->o_extra)->oe_key = on;
1948 LDAP_SLIST_NEXT(LDAP_SLIST_FIRST(&op2->o_extra), oe_next) = NULL;
1950 ptr = (char *) sopbuf2 + offsetof( SyncOperationBuffer, sob_extra );
1952 op2->ors_attrs = (AttributeName *) ptr;
1953 ptr = (char *) &op2->ors_attrs[i+1];
1954 for (i=0; !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
1955 op2->ors_attrs[i] = op->ors_attrs[i];
1956 op2->ors_attrs[i].an_name.bv_val = ptr;
1957 ptr = lutil_strcopy( ptr, op->ors_attrs[i].an_name.bv_val ) + 1;
1959 BER_BVZERO( &op2->ors_attrs[i].an_name );
1962 op2->o_authz = op->o_authz;
1963 op2->o_ndn.bv_val = ptr;
1964 ptr = lutil_strcopy(ptr, op->o_ndn.bv_val) + 1;
1965 op2->o_dn = op2->o_ndn;
1966 op2->o_req_dn.bv_len = op->o_req_dn.bv_len;
1967 op2->o_req_dn.bv_val = ptr;
1968 ptr = lutil_strcopy(ptr, op->o_req_dn.bv_val) + 1;
1969 op2->o_req_ndn.bv_len = op->o_req_ndn.bv_len;
1970 op2->o_req_ndn.bv_val = ptr;
1971 ptr = lutil_strcopy(ptr, op->o_req_ndn.bv_val) + 1;
1972 op2->ors_filterstr.bv_val = ptr;
1973 strcpy( ptr, so->s_filterstr.bv_val );
1974 op2->ors_filterstr.bv_len = so->s_filterstr.bv_len;
1976 /* Skip the AND/GE clause that we stuck on in front */
1977 if ( so->s_flags & PS_FIX_FILTER ) {
1978 op2->ors_filter = op->ors_filter->f_and->f_next;
1979 so->s_flags ^= PS_FIX_FILTER;
1981 op2->ors_filter = op->ors_filter;
1983 op2->ors_filter = filter_dup( op2->ors_filter, NULL );
1986 /* Copy any cached group ACLs individually */
1987 op2->o_groups = NULL;
1988 for ( g1=op->o_groups; g1; g1=g1->ga_next ) {
1989 g2 = ch_malloc( sizeof(GroupAssertion) + g1->ga_len );
1991 strcpy( g2->ga_ndn, g1->ga_ndn );
1992 g2->ga_next = op2->o_groups;
1995 /* Don't allow any further group caching */
1996 op2->o_do_not_cache = 1;
1998 /* Add op2 to conn so abandon will find us */
1999 op->o_conn->c_n_ops_executing++;
2000 op->o_conn->c_n_ops_completed--;
2001 LDAP_STAILQ_INSERT_TAIL( &op->o_conn->c_ops, op2, o_next );
2002 so->s_flags |= PS_IS_DETACHED;
2004 /* Prevent anyone else from trying to send a result for this op */
2009 syncprov_search_response( Operation *op, SlapReply *rs )
2011 searchstate *ss = op->o_callback->sc_private;
2012 slap_overinst *on = ss->ss_on;
2013 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2014 sync_control *srs = op->o_controls[slap_cids.sc_LDAPsync];
2016 if ( rs->sr_type == REP_SEARCH || rs->sr_type == REP_SEARCHREF ) {
2018 /* If we got a referral without a referral object, there's
2019 * something missing that we cannot replicate. Just ignore it.
2020 * The consumer will abort because we didn't send the expected
2023 if ( !rs->sr_entry ) {
2024 assert( rs->sr_entry != NULL );
2025 Debug( LDAP_DEBUG_ANY, "bogus referral in context\n",0,0,0 );
2026 return SLAP_CB_CONTINUE;
2028 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryCSN );
2029 if ( a == NULL && rs->sr_operational_attrs != NULL ) {
2030 a = attr_find( rs->sr_operational_attrs, slap_schema.si_ad_entryCSN );
2034 sid = slap_parse_csn_sid( &a->a_nvals[0] );
2036 /* Don't send changed entries back to the originator */
2037 if ( sid == srs->sr_state.sid && srs->sr_state.numcsns ) {
2038 Debug( LDAP_DEBUG_SYNC,
2039 "Entry %s changed by peer, ignored\n",
2040 rs->sr_entry->e_name.bv_val, 0, 0 );
2041 return LDAP_SUCCESS;
2044 /* If not a persistent search */
2046 /* Make sure entry is less than the snapshot'd contextCSN */
2047 for ( i=0; i<ss->ss_numcsns; i++ ) {
2048 if ( sid == ss->ss_sids[i] && ber_bvcmp( &a->a_nvals[0],
2049 &ss->ss_ctxcsn[i] ) > 0 ) {
2050 Debug( LDAP_DEBUG_SYNC,
2051 "Entry %s CSN %s greater than snapshot %s\n",
2052 rs->sr_entry->e_name.bv_val,
2053 a->a_nvals[0].bv_val,
2054 ss->ss_ctxcsn[i].bv_val );
2055 return LDAP_SUCCESS;
2060 /* Don't send old entries twice */
2061 if ( srs->sr_state.ctxcsn ) {
2062 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2063 if ( sid == srs->sr_state.sids[i] &&
2064 ber_bvcmp( &a->a_nvals[0],
2065 &srs->sr_state.ctxcsn[i] )<= 0 ) {
2066 Debug( LDAP_DEBUG_SYNC,
2067 "Entry %s CSN %s older or equal to ctx %s\n",
2068 rs->sr_entry->e_name.bv_val,
2069 a->a_nvals[0].bv_val,
2070 srs->sr_state.ctxcsn[i].bv_val );
2071 return LDAP_SUCCESS;
2076 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2078 rs->sr_ctrls[1] = NULL;
2079 /* If we're in delta-sync mode, always send a cookie */
2080 if ( si->si_nopres && si->si_usehint && a ) {
2081 struct berval cookie;
2082 slap_compose_sync_cookie( op, &cookie, a->a_nvals, srs->sr_state.rid, srs->sr_state.sid );
2083 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2084 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 1, &cookie );
2086 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2087 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 0, NULL );
2089 } else if ( rs->sr_type == REP_RESULT && rs->sr_err == LDAP_SUCCESS ) {
2090 struct berval cookie;
2092 if ( ss->ss_flags & SS_CHANGED ) {
2093 slap_compose_sync_cookie( op, &cookie, ss->ss_ctxcsn,
2094 srs->sr_state.rid, srs->sr_state.sid );
2096 Debug( LDAP_DEBUG_SYNC, "syncprov_search_response: cookie=%s\n", cookie.bv_val, 0, 0 );
2099 /* Is this a regular refresh?
2100 * Note: refresh never gets here if there were no changes
2103 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2105 rs->sr_ctrls[1] = NULL;
2106 rs->sr_err = syncprov_done_ctrl( op, rs, rs->sr_ctrls,
2107 0, 1, &cookie, ( ss->ss_flags & SS_PRESENT ) ? LDAP_SYNC_REFRESH_PRESENTS :
2108 LDAP_SYNC_REFRESH_DELETES );
2109 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2111 /* It's RefreshAndPersist, transition to Persist phase */
2112 syncprov_sendinfo( op, rs, ( ss->ss_flags & SS_PRESENT ) ?
2113 LDAP_TAG_SYNC_REFRESH_PRESENT : LDAP_TAG_SYNC_REFRESH_DELETE,
2114 ( ss->ss_flags & SS_CHANGED ) ? &cookie : NULL,
2116 if ( ss->ss_flags & SS_CHANGED )
2117 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2119 /* Detach this Op from frontend control */
2120 ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex );
2121 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
2123 /* But not if this connection was closed along the way */
2124 if ( op->o_abandon ) {
2125 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2126 ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
2127 /* syncprov_ab_cleanup will free this syncop */
2128 return SLAPD_ABANDON;
2131 /* Turn off the refreshing flag */
2132 ss->ss_so->s_flags ^= PS_IS_REFRESHING;
2134 syncprov_detach_op( op, ss->ss_so, on );
2136 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2138 /* If there are queued responses, fire them off */
2139 if ( ss->ss_so->s_res )
2140 syncprov_qstart( ss->ss_so );
2142 ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
2144 return LDAP_SUCCESS;
2148 return SLAP_CB_CONTINUE;
2152 syncprov_op_search( Operation *op, SlapReply *rs )
2154 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2155 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2157 int gotstate = 0, changed = 0, do_present = 0;
2158 syncops *sop = NULL;
2162 int i, *sids, numcsns;
2163 struct berval mincsn;
2165 if ( !(op->o_sync_mode & SLAP_SYNC_REFRESH) ) return SLAP_CB_CONTINUE;
2167 if ( op->ors_deref & LDAP_DEREF_SEARCHING ) {
2168 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR, "illegal value for derefAliases" );
2172 srs = op->o_controls[slap_cids.sc_LDAPsync];
2173 op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
2175 /* If this is a persistent search, set it up right away */
2176 if ( op->o_sync_mode & SLAP_SYNC_PERSIST ) {
2186 so.s_flags = PS_IS_REFRESHING | PS_FIND_BASE;
2187 /* syncprov_findbase expects to be called as a callback... */
2188 sc.sc_private = &opc;
2190 ldap_pvt_thread_mutex_init( &so.s_mutex );
2191 cb = op->o_callback;
2192 op->o_callback = ≻
2193 rs->sr_err = syncprov_findbase( op, &fc );
2194 op->o_callback = cb;
2195 ldap_pvt_thread_mutex_destroy( &so.s_mutex );
2197 if ( rs->sr_err != LDAP_SUCCESS ) {
2198 send_ldap_result( op, rs );
2201 sop = ch_malloc( sizeof( syncops ));
2203 ldap_pvt_thread_mutex_init( &sop->s_mutex );
2204 sop->s_rid = srs->sr_state.rid;
2205 sop->s_sid = srs->sr_state.sid;
2208 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2209 sop->s_next = si->si_ops;
2211 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2214 /* snapshot the ctxcsn */
2215 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2216 numcsns = si->si_numcsns;
2218 ber_bvarray_dup_x( &ctxcsn, si->si_ctxcsn, op->o_tmpmemctx );
2219 sids = op->o_tmpalloc( numcsns * sizeof(int), op->o_tmpmemctx );
2220 for ( i=0; i<numcsns; i++ )
2221 sids[i] = si->si_sids[i];
2226 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2228 /* If we have a cookie, handle the PRESENT lookups */
2229 if ( srs->sr_state.ctxcsn ) {
2233 /* If we don't have any CSN of our own yet, pretend nothing
2239 if ( !si->si_nopres )
2240 do_present = SS_PRESENT;
2242 /* If there are SIDs we don't recognize in the cookie, drop them */
2243 for (i=0; i<srs->sr_state.numcsns; ) {
2244 for (j=0; j<numcsns; j++) {
2245 if ( srs->sr_state.sids[i] == sids[j] ) {
2250 if ( j == numcsns ) {
2251 struct berval tmp = srs->sr_state.ctxcsn[i];
2252 j = srs->sr_state.numcsns - 1;
2253 srs->sr_state.ctxcsn[i] = srs->sr_state.ctxcsn[j];
2255 srs->sr_state.ctxcsn[j] = tmp;
2256 srs->sr_state.numcsns = j;
2257 srs->sr_state.sids[i] = srs->sr_state.sids[j];
2263 /* Find the smallest CSN */
2264 mincsn = srs->sr_state.ctxcsn[0];
2265 for ( i=1; i<srs->sr_state.numcsns; i++ ) {
2266 if ( ber_bvcmp( &mincsn, &srs->sr_state.ctxcsn[i] ) > 0 )
2267 mincsn = srs->sr_state.ctxcsn[i];
2270 /* If nothing has changed, shortcut it */
2271 if ( srs->sr_state.numcsns == numcsns ) {
2273 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2274 for ( j=0; j<numcsns; j++ ) {
2275 if ( srs->sr_state.sids[i] != sids[j] )
2277 if ( !bvmatch( &srs->sr_state.ctxcsn[i], &ctxcsn[j] ))
2278 changed = SS_CHANGED;
2286 no_change: if ( !(op->o_sync_mode & SLAP_SYNC_PERSIST) ) {
2287 LDAPControl *ctrls[2];
2291 syncprov_done_ctrl( op, rs, ctrls, 0, 0,
2292 NULL, LDAP_SYNC_REFRESH_DELETES );
2293 rs->sr_ctrls = ctrls;
2294 rs->sr_err = LDAP_SUCCESS;
2295 send_ldap_result( op, rs );
2296 rs->sr_ctrls = NULL;
2302 /* consumer doesn't have the right number of CSNs */
2303 changed = SS_CHANGED;
2305 /* Do we have a sessionlog for this search? */
2308 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
2309 /* Are there any log entries, and is the consumer state
2310 * present in the session log?
2312 if ( sl->sl_num > 0 && ber_bvcmp( &mincsn, &sl->sl_mincsn ) >= 0 ) {
2314 /* mutex is unlocked in playlog */
2315 syncprov_playlog( op, rs, sl, srs, ctxcsn, numcsns, sids );
2317 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
2320 /* Is the CSN still present in the database? */
2321 if ( syncprov_findcsn( op, FIND_CSN ) != LDAP_SUCCESS ) {
2322 /* No, so a reload is required */
2323 /* the 2.2 consumer doesn't send this hint */
2324 if ( si->si_usehint && srs->sr_rhint == 0 ) {
2326 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2328 op->o_tmpfree( sids, op->o_tmpmemctx );
2329 send_ldap_error( op, rs, LDAP_SYNC_REFRESH_REQUIRED, "sync cookie is stale" );
2332 if ( srs->sr_state.ctxcsn ) {
2333 ber_bvarray_free_x( srs->sr_state.ctxcsn, op->o_tmpmemctx );
2334 srs->sr_state.ctxcsn = NULL;
2336 if ( srs->sr_state.sids ) {
2337 slap_sl_free( srs->sr_state.sids, op->o_tmpmemctx );
2338 srs->sr_state.sids = NULL;
2340 srs->sr_state.numcsns = 0;
2343 /* If changed and doing Present lookup, send Present UUIDs */
2344 if ( do_present && syncprov_findcsn( op, FIND_PRESENT ) !=
2347 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2349 op->o_tmpfree( sids, op->o_tmpmemctx );
2350 send_ldap_result( op, rs );
2355 /* No consumer state, assume something has changed */
2356 changed = SS_CHANGED;
2360 /* Append CSN range to search filter, save original filter
2361 * for persistent search evaluation
2364 sop->s_filterstr= op->ors_filterstr;
2367 /* If something changed, find the changes */
2368 if ( gotstate && changed ) {
2369 Filter *fand, *fava;
2371 fand = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2372 fand->f_choice = LDAP_FILTER_AND;
2373 fand->f_next = NULL;
2374 fava = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2376 fava->f_choice = LDAP_FILTER_GE;
2377 fava->f_ava = op->o_tmpalloc( sizeof(AttributeAssertion), op->o_tmpmemctx );
2378 fava->f_ava->aa_desc = slap_schema.si_ad_entryCSN;
2379 #ifdef LDAP_COMP_MATCH
2380 fava->f_ava->aa_cf = NULL;
2382 ber_dupbv_x( &fava->f_ava->aa_value, &mincsn, op->o_tmpmemctx );
2383 fava->f_next = op->ors_filter;
2384 op->ors_filter = fand;
2385 filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2387 sop->s_flags |= PS_FIX_FILTER;
2390 /* Let our callback add needed info to returned entries */
2391 cb = op->o_tmpcalloc(1, sizeof(slap_callback)+sizeof(searchstate), op->o_tmpmemctx);
2392 ss = (searchstate *)(cb+1);
2395 ss->ss_flags = do_present | changed;
2396 ss->ss_ctxcsn = ctxcsn;
2397 ss->ss_numcsns = numcsns;
2399 cb->sc_response = syncprov_search_response;
2400 cb->sc_cleanup = syncprov_search_cleanup;
2401 cb->sc_private = ss;
2402 cb->sc_next = op->o_callback;
2403 op->o_callback = cb;
2405 /* If this is a persistent search and no changes were reported during
2406 * the refresh phase, just invoke the response callback to transition
2407 * us into persist phase
2410 rs->sr_err = LDAP_SUCCESS;
2411 rs->sr_nentries = 0;
2412 send_ldap_result( op, rs );
2415 return SLAP_CB_CONTINUE;
2419 syncprov_operational(
2423 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2424 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2426 /* This prevents generating unnecessarily; frontend will strip
2427 * any statically stored copy.
2429 if ( op->o_sync != SLAP_CONTROL_NONE )
2430 return SLAP_CB_CONTINUE;
2432 if ( rs->sr_entry &&
2433 dn_match( &rs->sr_entry->e_nname, op->o_bd->be_nsuffix )) {
2435 if ( SLAP_OPATTRS( rs->sr_attr_flags ) ||
2436 ad_inlist( slap_schema.si_ad_contextCSN, rs->sr_attrs )) {
2437 Attribute *a, **ap = NULL;
2439 for ( a=rs->sr_entry->e_attrs; a; a=a->a_next ) {
2440 if ( a->a_desc == slap_schema.si_ad_contextCSN )
2444 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2445 if ( si->si_ctxcsn ) {
2447 for ( ap = &rs->sr_operational_attrs; *ap;
2448 ap=&(*ap)->a_next );
2450 a = attr_alloc( slap_schema.si_ad_contextCSN );
2455 if ( !(rs->sr_flags & REP_ENTRY_MODIFIABLE) ) {
2456 Entry *e = entry_dup( rs->sr_entry );
2457 if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
2458 overlay_entry_release_ov( op, rs->sr_entry, 0, on );
2459 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
2460 } else if ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) {
2461 entry_free( rs->sr_entry );
2465 REP_ENTRY_MODIFIABLE|REP_ENTRY_MUSTBEFREED;
2466 a = attr_find( rs->sr_entry->e_attrs,
2467 slap_schema.si_ad_contextCSN );
2469 if ( a->a_nvals != a->a_vals ) {
2470 ber_bvarray_free( a->a_nvals );
2473 ber_bvarray_free( a->a_vals );
2477 attr_valadd( a, si->si_ctxcsn, si->si_ctxcsn, si->si_numcsns );
2479 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2482 return SLAP_CB_CONTINUE;
2492 static ConfigDriver sp_cf_gen;
2494 static ConfigTable spcfg[] = {
2495 { "syncprov-checkpoint", "ops> <minutes", 3, 3, 0, ARG_MAGIC|SP_CHKPT,
2496 sp_cf_gen, "( OLcfgOvAt:1.1 NAME 'olcSpCheckpoint' "
2497 "DESC 'ContextCSN checkpoint interval in ops and minutes' "
2498 "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
2499 { "syncprov-sessionlog", "ops", 2, 2, 0, ARG_INT|ARG_MAGIC|SP_SESSL,
2500 sp_cf_gen, "( OLcfgOvAt:1.2 NAME 'olcSpSessionlog' "
2501 "DESC 'Session log size in ops' "
2502 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
2503 { "syncprov-nopresent", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_NOPRES,
2504 sp_cf_gen, "( OLcfgOvAt:1.3 NAME 'olcSpNoPresent' "
2505 "DESC 'Omit Present phase processing' "
2506 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2507 { "syncprov-reloadhint", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_USEHINT,
2508 sp_cf_gen, "( OLcfgOvAt:1.4 NAME 'olcSpReloadHint' "
2509 "DESC 'Observe Reload Hint in Request control' "
2510 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2511 { NULL, NULL, 0, 0, 0, ARG_IGNORED }
2514 static ConfigOCs spocs[] = {
2515 { "( OLcfgOvOc:1.1 "
2516 "NAME 'olcSyncProvConfig' "
2517 "DESC 'SyncRepl Provider configuration' "
2518 "SUP olcOverlayConfig "
2519 "MAY ( olcSpCheckpoint "
2520 "$ olcSpSessionlog "
2522 "$ olcSpReloadHint "
2524 Cft_Overlay, spcfg },
2529 sp_cf_gen(ConfigArgs *c)
2531 slap_overinst *on = (slap_overinst *)c->bi;
2532 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2535 if ( c->op == SLAP_CONFIG_EMIT ) {
2536 switch ( c->type ) {
2538 if ( si->si_chkops || si->si_chktime ) {
2540 bv.bv_len = snprintf( c->cr_msg, sizeof( c->cr_msg ),
2541 "%d %d", si->si_chkops, si->si_chktime );
2542 if ( bv.bv_len >= sizeof( c->cr_msg ) ) {
2545 bv.bv_val = c->cr_msg;
2546 value_add_one( &c->rvalue_vals, &bv );
2553 if ( si->si_logs ) {
2554 c->value_int = si->si_logs->sl_size;
2560 if ( si->si_nopres ) {
2567 if ( si->si_usehint ) {
2575 } else if ( c->op == LDAP_MOD_DELETE ) {
2576 switch ( c->type ) {
2583 si->si_logs->sl_size = 0;
2585 rc = LDAP_NO_SUCH_ATTRIBUTE;
2588 if ( si->si_nopres )
2591 rc = LDAP_NO_SUCH_ATTRIBUTE;
2594 if ( si->si_usehint )
2597 rc = LDAP_NO_SUCH_ATTRIBUTE;
2602 switch ( c->type ) {
2604 if ( lutil_atoi( &si->si_chkops, c->argv[1] ) != 0 ) {
2605 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint ops # \"%s\"",
2606 c->argv[0], c->argv[1] );
2607 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2608 "%s: %s\n", c->log, c->cr_msg, 0 );
2609 return ARG_BAD_CONF;
2611 if ( si->si_chkops <= 0 ) {
2612 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint ops # \"%d\"",
2613 c->argv[0], si->si_chkops );
2614 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2615 "%s: %s\n", c->log, c->cr_msg, 0 );
2616 return ARG_BAD_CONF;
2618 if ( lutil_atoi( &si->si_chktime, c->argv[2] ) != 0 ) {
2619 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint time \"%s\"",
2620 c->argv[0], c->argv[1] );
2621 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2622 "%s: %s\n", c->log, c->cr_msg, 0 );
2623 return ARG_BAD_CONF;
2625 if ( si->si_chktime <= 0 ) {
2626 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint time \"%d\"",
2627 c->argv[0], si->si_chkops );
2628 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2629 "%s: %s\n", c->log, c->cr_msg, 0 );
2630 return ARG_BAD_CONF;
2632 si->si_chktime *= 60;
2636 int size = c->value_int;
2639 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s size %d is negative",
2641 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2642 "%s: %s\n", c->log, c->cr_msg, 0 );
2643 return ARG_BAD_CONF;
2647 sl = ch_malloc( sizeof( sessionlog ) + LDAP_LUTIL_CSNSTR_BUFSIZE );
2648 sl->sl_mincsn.bv_val = (char *)(sl+1);
2649 sl->sl_mincsn.bv_len = 0;
2651 sl->sl_head = sl->sl_tail = NULL;
2652 ldap_pvt_thread_mutex_init( &sl->sl_mutex );
2659 si->si_nopres = c->value_int;
2662 si->si_usehint = c->value_int;
2668 /* ITS#3456 we cannot run this search on the main thread, must use a
2669 * child thread in order to insure we have a big enough stack.
2676 syncprov_findcsn( ptr, FIND_MAXCSN );
2680 /* Read any existing contextCSN from the underlying db.
2681 * Then search for any entries newer than that. If no value exists,
2682 * just generate it. Cache whatever result.
2690 slap_overinst *on = (slap_overinst *) be->bd_info;
2691 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2693 Connection conn = { 0 };
2694 OperationBuffer opbuf;
2699 void *thrctx = NULL;
2701 if ( !SLAP_LASTMOD( be )) {
2702 Debug( LDAP_DEBUG_ANY,
2703 "syncprov_db_open: invalid config, lastmod must be enabled\n", 0, 0, 0 );
2707 if ( slapMode & SLAP_TOOL_MODE ) {
2711 rc = overlay_register_control( be, LDAP_CONTROL_SYNC );
2716 thrctx = ldap_pvt_thread_pool_context();
2717 connection_fake_init( &conn, &opbuf, thrctx );
2720 op->o_dn = be->be_rootdn;
2721 op->o_ndn = be->be_rootndn;
2723 rc = overlay_entry_get_ov( op, be->be_nsuffix, NULL,
2724 slap_schema.si_ad_contextCSN, 0, &e, on );
2727 ldap_pvt_thread_t tid;
2729 a = attr_find( e->e_attrs, slap_schema.si_ad_contextCSN );
2731 ber_bvarray_dup_x( &si->si_ctxcsn, a->a_vals, NULL );
2732 si->si_numcsns = a->a_numvals;
2733 si->si_sids = slap_parse_csn_sids( si->si_ctxcsn, a->a_numvals, NULL );
2735 overlay_entry_release_ov( op, e, 0, on );
2736 if ( si->si_ctxcsn ) {
2737 op->o_req_dn = be->be_suffix[0];
2738 op->o_req_ndn = be->be_nsuffix[0];
2739 op->ors_scope = LDAP_SCOPE_SUBTREE;
2740 ldap_pvt_thread_create( &tid, 0, syncprov_db_otask, op );
2741 ldap_pvt_thread_join( tid, NULL );
2745 /* Didn't find a contextCSN, should we generate one? */
2746 if ( !si->si_ctxcsn ) {
2747 char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
2750 if ( SLAP_SYNC_SHADOW( op->o_bd )) {
2751 /* If we're also a consumer, then don't generate anything.
2752 * Wait for our provider to send it to us, or for a local
2753 * modify if we have multimaster.
2757 csn.bv_val = csnbuf;
2758 csn.bv_len = sizeof( csnbuf );
2759 slap_get_csn( op, &csn, 0 );
2760 value_add_one( &si->si_ctxcsn, &csn );
2762 si->si_sids = ch_malloc( sizeof(int) );
2763 si->si_sids[0] = slap_serverID;
2765 /* make sure we do a checkpoint on close */
2770 op->o_bd->bd_info = (BackendInfo *)on;
2774 /* Write the current contextCSN into the underlying db.
2782 slap_overinst *on = (slap_overinst *) be->bd_info;
2783 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2785 if ( slapMode & SLAP_TOOL_MODE ) {
2788 if ( si->si_numops ) {
2789 Connection conn = {0};
2790 OperationBuffer opbuf;
2792 SlapReply rs = {REP_RESULT};
2795 thrctx = ldap_pvt_thread_pool_context();
2796 connection_fake_init( &conn, &opbuf, thrctx );
2799 op->o_dn = be->be_rootdn;
2800 op->o_ndn = be->be_rootndn;
2801 syncprov_checkpoint( op, &rs, on );
2813 slap_overinst *on = (slap_overinst *)be->bd_info;
2814 syncprov_info_t *si;
2816 if ( SLAP_ISGLOBALOVERLAY( be ) ) {
2817 Debug( LDAP_DEBUG_ANY,
2818 "syncprov must be instantiated within a database.\n",
2823 si = ch_calloc(1, sizeof(syncprov_info_t));
2824 on->on_bi.bi_private = si;
2825 ldap_pvt_thread_rdwr_init( &si->si_csn_rwlock );
2826 ldap_pvt_thread_mutex_init( &si->si_ops_mutex );
2827 ldap_pvt_thread_mutex_init( &si->si_mods_mutex );
2829 csn_anlist[0].an_desc = slap_schema.si_ad_entryCSN;
2830 csn_anlist[0].an_name = slap_schema.si_ad_entryCSN->ad_cname;
2831 csn_anlist[1].an_desc = slap_schema.si_ad_entryUUID;
2832 csn_anlist[1].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2834 uuid_anlist[0].an_desc = slap_schema.si_ad_entryUUID;
2835 uuid_anlist[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2841 syncprov_db_destroy(
2846 slap_overinst *on = (slap_overinst *)be->bd_info;
2847 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2850 if ( si->si_logs ) {
2851 slog_entry *se = si->si_logs->sl_head;
2854 slog_entry *se_next = se->se_next;
2859 ch_free( si->si_logs );
2861 if ( si->si_ctxcsn )
2862 ber_bvarray_free( si->si_ctxcsn );
2864 ch_free( si->si_sids );
2865 ldap_pvt_thread_mutex_destroy( &si->si_mods_mutex );
2866 ldap_pvt_thread_mutex_destroy( &si->si_ops_mutex );
2867 ldap_pvt_thread_rdwr_destroy( &si->si_csn_rwlock );
2874 static int syncprov_parseCtrl (
2880 BerElementBuffer berbuf;
2881 BerElement *ber = (BerElement *)&berbuf;
2884 struct berval cookie = BER_BVNULL;
2888 if ( op->o_sync != SLAP_CONTROL_NONE ) {
2889 rs->sr_text = "Sync control specified multiple times";
2890 return LDAP_PROTOCOL_ERROR;
2893 if ( op->o_pagedresults != SLAP_CONTROL_NONE ) {
2894 rs->sr_text = "Sync control specified with pagedResults control";
2895 return LDAP_PROTOCOL_ERROR;
2898 if ( BER_BVISNULL( &ctrl->ldctl_value ) ) {
2899 rs->sr_text = "Sync control value is absent";
2900 return LDAP_PROTOCOL_ERROR;
2903 if ( BER_BVISEMPTY( &ctrl->ldctl_value ) ) {
2904 rs->sr_text = "Sync control value is empty";
2905 return LDAP_PROTOCOL_ERROR;
2908 /* Parse the control value
2909 * syncRequestValue ::= SEQUENCE {
2914 * refreshAndPersist (3)
2916 * cookie syncCookie OPTIONAL
2920 ber_init2( ber, &ctrl->ldctl_value, 0 );
2922 if ( (tag = ber_scanf( ber, "{i" /*}*/, &mode )) == LBER_ERROR ) {
2923 rs->sr_text = "Sync control : mode decoding error";
2924 return LDAP_PROTOCOL_ERROR;
2928 case LDAP_SYNC_REFRESH_ONLY:
2929 mode = SLAP_SYNC_REFRESH;
2931 case LDAP_SYNC_REFRESH_AND_PERSIST:
2932 mode = SLAP_SYNC_REFRESH_AND_PERSIST;
2935 rs->sr_text = "Sync control : unknown update mode";
2936 return LDAP_PROTOCOL_ERROR;
2939 tag = ber_peek_tag( ber, &len );
2941 if ( tag == LDAP_TAG_SYNC_COOKIE ) {
2942 if (( ber_scanf( ber, /*{*/ "m", &cookie )) == LBER_ERROR ) {
2943 rs->sr_text = "Sync control : cookie decoding error";
2944 return LDAP_PROTOCOL_ERROR;
2946 tag = ber_peek_tag( ber, &len );
2948 if ( tag == LDAP_TAG_RELOAD_HINT ) {
2949 if (( ber_scanf( ber, /*{*/ "b", &rhint )) == LBER_ERROR ) {
2950 rs->sr_text = "Sync control : rhint decoding error";
2951 return LDAP_PROTOCOL_ERROR;
2954 if (( ber_scanf( ber, /*{*/ "}")) == LBER_ERROR ) {
2955 rs->sr_text = "Sync control : decoding error";
2956 return LDAP_PROTOCOL_ERROR;
2958 sr = op->o_tmpcalloc( 1, sizeof(struct sync_control), op->o_tmpmemctx );
2959 sr->sr_rhint = rhint;
2960 if (!BER_BVISNULL(&cookie)) {
2961 ber_dupbv_x( &sr->sr_state.octet_str, &cookie, op->o_tmpmemctx );
2962 /* If parse fails, pretend no cookie was sent */
2963 if ( slap_parse_sync_cookie( &sr->sr_state, op->o_tmpmemctx ) ||
2964 sr->sr_state.rid == -1 ) {
2965 if ( sr->sr_state.ctxcsn ) {
2966 ber_bvarray_free_x( sr->sr_state.ctxcsn, op->o_tmpmemctx );
2967 sr->sr_state.ctxcsn = NULL;
2969 sr->sr_state.numcsns = 0;
2973 op->o_controls[slap_cids.sc_LDAPsync] = sr;
2975 op->o_sync = ctrl->ldctl_iscritical
2976 ? SLAP_CONTROL_CRITICAL
2977 : SLAP_CONTROL_NONCRITICAL;
2979 op->o_sync_mode |= mode; /* o_sync_mode shares o_sync */
2981 return LDAP_SUCCESS;
2984 /* This overlay is set up for dynamic loading via moduleload. For static
2985 * configuration, you'll need to arrange for the slap_overinst to be
2986 * initialized and registered by some other function inside slapd.
2989 static slap_overinst syncprov;
2992 syncprov_initialize()
2996 rc = register_supported_control( LDAP_CONTROL_SYNC,
2997 SLAP_CTRL_SEARCH, NULL,
2998 syncprov_parseCtrl, &slap_cids.sc_LDAPsync );
2999 if ( rc != LDAP_SUCCESS ) {
3000 Debug( LDAP_DEBUG_ANY,
3001 "syncprov_init: Failed to register control %d\n", rc, 0, 0 );
3005 syncprov.on_bi.bi_type = "syncprov";
3006 syncprov.on_bi.bi_db_init = syncprov_db_init;
3007 syncprov.on_bi.bi_db_destroy = syncprov_db_destroy;
3008 syncprov.on_bi.bi_db_open = syncprov_db_open;
3009 syncprov.on_bi.bi_db_close = syncprov_db_close;
3011 syncprov.on_bi.bi_op_abandon = syncprov_op_abandon;
3012 syncprov.on_bi.bi_op_cancel = syncprov_op_abandon;
3014 syncprov.on_bi.bi_op_add = syncprov_op_mod;
3015 syncprov.on_bi.bi_op_compare = syncprov_op_compare;
3016 syncprov.on_bi.bi_op_delete = syncprov_op_mod;
3017 syncprov.on_bi.bi_op_modify = syncprov_op_mod;
3018 syncprov.on_bi.bi_op_modrdn = syncprov_op_mod;
3019 syncprov.on_bi.bi_op_search = syncprov_op_search;
3020 syncprov.on_bi.bi_extended = syncprov_op_extended;
3021 syncprov.on_bi.bi_operational = syncprov_operational;
3023 syncprov.on_bi.bi_cf_ocs = spocs;
3025 generic_filter.f_desc = slap_schema.si_ad_objectClass;
3027 rc = config_register_schema( spcfg, spocs );
3028 if ( rc ) return rc;
3030 return overlay_register( &syncprov );
3033 #if SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC
3035 init_module( int argc, char *argv[] )
3037 return syncprov_initialize();
3039 #endif /* SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC */
3041 #endif /* defined(SLAPD_OVER_SYNCPROV) */