2 /* syncprov.c - syncrepl provider */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2004-2009 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>
35 /* A modify request on a particular entry */
36 typedef struct modinst {
37 struct modinst *mi_next;
41 typedef struct modtarget {
42 struct modinst *mt_mods;
43 struct modinst *mt_tail;
45 ldap_pvt_thread_mutex_t mt_mutex;
48 /* A queued result of a persistent search */
49 typedef struct syncres {
50 struct syncres *s_next;
59 /* Record of a persistent search */
60 typedef struct syncops {
61 struct syncops *s_next;
62 struct berval s_base; /* ndn of search base */
63 ID s_eid; /* entryID of search base */
64 Operation *s_op; /* search op */
67 struct berval s_filterstr;
68 int s_flags; /* search status */
69 #define PS_IS_REFRESHING 0x01
70 #define PS_IS_DETACHED 0x02
71 #define PS_WROTE_BASE 0x04
72 #define PS_FIND_BASE 0x08
73 #define PS_FIX_FILTER 0x10
75 int s_inuse; /* reference count */
76 struct syncres *s_res;
77 struct syncres *s_restail;
78 struct re_s *s_qtask; /* task for playing psearch responses */
79 #define RUNQ_INTERVAL 36000 /* a long time */
80 ldap_pvt_thread_mutex_t s_mutex;
83 /* A received sync control */
84 typedef struct sync_control {
85 struct sync_cookie sr_state;
89 #if 0 /* moved back to slap.h */
90 #define o_sync o_ctrlflag[slap_cids.sc_LDAPsync]
92 /* o_sync_mode uses data bits of o_sync */
93 #define o_sync_mode o_ctrlflag[slap_cids.sc_LDAPsync]
95 #define SLAP_SYNC_NONE (LDAP_SYNC_NONE<<SLAP_CONTROL_SHIFT)
96 #define SLAP_SYNC_REFRESH (LDAP_SYNC_REFRESH_ONLY<<SLAP_CONTROL_SHIFT)
97 #define SLAP_SYNC_PERSIST (LDAP_SYNC_RESERVED<<SLAP_CONTROL_SHIFT)
98 #define SLAP_SYNC_REFRESH_AND_PERSIST (LDAP_SYNC_REFRESH_AND_PERSIST<<SLAP_CONTROL_SHIFT)
100 /* Record of which searches matched at premodify step */
101 typedef struct syncmatches {
102 struct syncmatches *sm_next;
106 /* Session log data */
107 typedef struct slog_entry {
108 struct slog_entry *se_next;
109 struct berval se_uuid;
110 struct berval se_csn;
115 typedef struct sessionlog {
116 struct berval sl_mincsn;
121 ldap_pvt_thread_mutex_t sl_mutex;
124 /* The main state for this overlay */
125 typedef struct syncprov_info_t {
127 BerVarray si_ctxcsn; /* ldapsync context */
130 int si_chkops; /* checkpointing info */
132 int si_numops; /* number of ops since last checkpoint */
133 int si_nopres; /* Skip present phase */
134 int si_usehint; /* use reload hint */
135 time_t si_chklast; /* time of last checkpoint */
136 Avlnode *si_mods; /* entries being modified */
138 ldap_pvt_thread_rdwr_t si_csn_rwlock;
139 ldap_pvt_thread_mutex_t si_ops_mutex;
140 ldap_pvt_thread_mutex_t si_mods_mutex;
143 typedef struct opcookie {
145 syncmatches *smatches;
146 struct berval sdn; /* DN of entry, for deletes */
148 struct berval suuid; /* UUID of entry */
149 struct berval sctxcsn;
150 int sreference; /* Is the entry a reference? */
153 typedef struct fbase_cookie {
154 struct berval *fdn; /* DN of a modified entry, for scope testing */
155 syncops *fss; /* persistent search we're testing against */
156 int fbase; /* if TRUE we found the search base and it's still valid */
157 int fscope; /* if TRUE then fdn is within the psearch scope */
160 static AttributeName csn_anlist[3];
161 static AttributeName uuid_anlist[2];
163 /* Build a LDAPsync intermediate state control */
169 int entry_sync_state,
173 struct berval *cookie )
178 BerElementBuffer berbuf;
179 BerElement *ber = (BerElement *)&berbuf;
181 struct berval entryuuid_bv = BER_BVNULL;
183 ber_init2( ber, 0, LBER_USE_DER );
184 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
186 ctrls[num_ctrls] = op->o_tmpalloc( sizeof ( LDAPControl ), op->o_tmpmemctx );
188 for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
189 AttributeDescription *desc = a->a_desc;
190 if ( desc == slap_schema.si_ad_entryUUID ) {
191 entryuuid_bv = a->a_nvals[0];
196 /* FIXME: what if entryuuid is NULL or empty ? */
198 if ( send_cookie && cookie ) {
199 ber_printf( ber, "{eOON}",
200 entry_sync_state, &entryuuid_bv, cookie );
202 ber_printf( ber, "{eON}",
203 entry_sync_state, &entryuuid_bv );
206 ctrls[num_ctrls]->ldctl_oid = LDAP_CONTROL_SYNC_STATE;
207 ctrls[num_ctrls]->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
208 ret = ber_flatten2( ber, &ctrls[num_ctrls]->ldctl_value, 1 );
213 Debug( LDAP_DEBUG_TRACE,
214 "slap_build_sync_ctrl: ber_flatten2 failed\n",
216 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
223 /* Build a LDAPsync final state control */
231 struct berval *cookie,
235 BerElementBuffer berbuf;
236 BerElement *ber = (BerElement *)&berbuf;
238 ber_init2( ber, NULL, LBER_USE_DER );
239 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
241 ctrls[num_ctrls] = op->o_tmpalloc( sizeof ( LDAPControl ), op->o_tmpmemctx );
243 ber_printf( ber, "{" );
244 if ( send_cookie && cookie ) {
245 ber_printf( ber, "O", cookie );
247 if ( refreshDeletes == LDAP_SYNC_REFRESH_DELETES ) {
248 ber_printf( ber, "b", refreshDeletes );
250 ber_printf( ber, "N}" );
252 ctrls[num_ctrls]->ldctl_oid = LDAP_CONTROL_SYNC_DONE;
253 ctrls[num_ctrls]->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
254 ret = ber_flatten2( ber, &ctrls[num_ctrls]->ldctl_value, 1 );
259 Debug( LDAP_DEBUG_TRACE,
260 "syncprov_done_ctrl: ber_flatten2 failed\n",
262 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
274 struct berval *cookie,
279 BerElementBuffer berbuf;
280 BerElement *ber = (BerElement *)&berbuf;
281 struct berval rspdata;
285 ber_init2( ber, NULL, LBER_USE_DER );
286 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
290 case LDAP_TAG_SYNC_NEW_COOKIE:
291 ber_printf( ber, "tO", type, cookie );
293 case LDAP_TAG_SYNC_REFRESH_DELETE:
294 case LDAP_TAG_SYNC_REFRESH_PRESENT:
295 ber_printf( ber, "t{", type );
297 ber_printf( ber, "O", cookie );
299 if ( refreshDone == 0 ) {
300 ber_printf( ber, "b", refreshDone );
302 ber_printf( ber, "N}" );
304 case LDAP_TAG_SYNC_ID_SET:
305 ber_printf( ber, "t{", type );
307 ber_printf( ber, "O", cookie );
309 if ( refreshDeletes == 1 ) {
310 ber_printf( ber, "b", refreshDeletes );
312 ber_printf( ber, "[W]", syncUUIDs );
313 ber_printf( ber, "N}" );
316 Debug( LDAP_DEBUG_TRACE,
317 "syncprov_sendinfo: invalid syncinfo type (%d)\n",
323 ret = ber_flatten2( ber, &rspdata, 0 );
326 Debug( LDAP_DEBUG_TRACE,
327 "syncprov_sendinfo: ber_flatten2 failed\n",
329 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
333 rs->sr_rspoid = LDAP_SYNC_INFO;
334 rs->sr_rspdata = &rspdata;
335 send_ldap_intermediate( op, rs );
336 rs->sr_rspdata = NULL;
342 /* Find a modtarget in an AVL tree */
344 sp_avl_cmp( const void *c1, const void *c2 )
346 const modtarget *m1, *m2;
350 rc = m1->mt_op->o_req_ndn.bv_len - m2->mt_op->o_req_ndn.bv_len;
353 return ber_bvcmp( &m1->mt_op->o_req_ndn, &m2->mt_op->o_req_ndn );
356 /* syncprov_findbase:
357 * finds the true DN of the base of a search (with alias dereferencing) and
358 * checks to make sure the base entry doesn't get replaced with a different
359 * entry (e.g., swapping trees via ModDN, or retargeting an alias). If a
360 * change is detected, any persistent search on this base must be terminated /
362 * On the first call, we just save the DN and entryID. On subsequent calls
363 * we compare the DN and entryID with the saved values.
366 findbase_cb( Operation *op, SlapReply *rs )
368 slap_callback *sc = op->o_callback;
370 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
371 fbase_cookie *fc = sc->sc_private;
373 /* If no entryID, we're looking for the first time.
374 * Just store whatever we got.
376 if ( fc->fss->s_eid == NOID ) {
378 fc->fss->s_eid = rs->sr_entry->e_id;
379 ber_dupbv( &fc->fss->s_base, &rs->sr_entry->e_nname );
381 } else if ( rs->sr_entry->e_id == fc->fss->s_eid &&
382 dn_match( &rs->sr_entry->e_nname, &fc->fss->s_base )) {
384 /* OK, the DN is the same and the entryID is the same. */
388 if ( rs->sr_err != LDAP_SUCCESS ) {
389 Debug( LDAP_DEBUG_ANY, "findbase failed! %d\n", rs->sr_err,0,0 );
394 static Filter generic_filter = { LDAP_FILTER_PRESENT, { 0 }, NULL };
395 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
398 syncprov_findbase( Operation *op, fbase_cookie *fc )
400 /* Use basic parameters from syncrepl search, but use
401 * current op's threadctx / tmpmemctx
403 ldap_pvt_thread_mutex_lock( &fc->fss->s_mutex );
404 if ( fc->fss->s_flags & PS_FIND_BASE ) {
405 slap_callback cb = {0};
407 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_bd = fop.o_bd->bd_self;
416 fop.o_hdr = op->o_hdr;
417 fop.o_time = op->o_time;
418 fop.o_tincr = op->o_tincr;
420 cb.sc_response = findbase_cb;
423 fop.o_sync_mode = 0; /* turn off sync mode */
424 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
425 fop.o_callback = &cb;
426 fop.o_tag = LDAP_REQ_SEARCH;
427 fop.ors_scope = LDAP_SCOPE_BASE;
428 fop.ors_limit = NULL;
430 fop.ors_tlimit = SLAP_NO_LIMIT;
431 fop.ors_attrs = slap_anlist_no_attrs;
432 fop.ors_attrsonly = 1;
433 fop.ors_filter = &generic_filter;
434 fop.ors_filterstr = generic_filterstr;
436 rc = fop.o_bd->be_search( &fop, &frs );
438 ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
442 /* After the first call, see if the fdn resides in the scope */
443 if ( fc->fbase == 1 ) {
444 switch ( fc->fss->s_op->ors_scope ) {
445 case LDAP_SCOPE_BASE:
446 fc->fscope = dn_match( fc->fdn, &fc->fss->s_base );
448 case LDAP_SCOPE_ONELEVEL: {
450 dnParent( fc->fdn, &pdn );
451 fc->fscope = dn_match( &pdn, &fc->fss->s_base );
453 case LDAP_SCOPE_SUBTREE:
454 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base );
456 case LDAP_SCOPE_SUBORDINATE:
457 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base ) &&
458 !dn_match( fc->fdn, &fc->fss->s_base );
466 /* If entryID has changed, then the base of this search has
467 * changed. Invalidate the psearch.
469 return LDAP_NO_SUCH_OBJECT;
473 * This function has three different purposes, but they all use a search
474 * that filters on entryCSN so they're combined here.
475 * 1: at startup time, after a contextCSN has been read from the database,
476 * we search for all entries with CSN >= contextCSN in case the contextCSN
477 * was not checkpointed at the previous shutdown.
479 * 2: when the current contextCSN is known and we have a sync cookie, we search
480 * for one entry with CSN = the cookie CSN. If not found, try <= cookie CSN.
481 * If an entry is found, the cookie CSN is valid, otherwise it is stale.
483 * 3: during a refresh phase, we search for all entries with CSN <= the cookie
484 * CSN, and generate Present records for them. We always collect this result
485 * in SyncID sets, even if there's only one match.
487 typedef enum find_csn_t {
494 findmax_cb( Operation *op, SlapReply *rs )
496 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
497 struct berval *maxcsn = op->o_callback->sc_private;
498 Attribute *a = attr_find( rs->sr_entry->e_attrs,
499 slap_schema.si_ad_entryCSN );
501 if ( a && ber_bvcmp( &a->a_vals[0], maxcsn ) > 0 &&
502 slap_parse_csn_sid( &a->a_vals[0] ) == slap_serverID ) {
503 maxcsn->bv_len = a->a_vals[0].bv_len;
504 strcpy( maxcsn->bv_val, a->a_vals[0].bv_val );
511 findcsn_cb( Operation *op, SlapReply *rs )
513 slap_callback *sc = op->o_callback;
515 /* We just want to know that at least one exists, so it's OK if
516 * we exceed the unchecked limit.
518 if ( rs->sr_err == LDAP_ADMINLIMIT_EXCEEDED ||
519 (rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS )) {
520 sc->sc_private = (void *)1;
525 /* Build a list of entryUUIDs for sending in a SyncID set */
529 typedef struct fpres_cookie {
536 findpres_cb( Operation *op, SlapReply *rs )
538 slap_callback *sc = op->o_callback;
539 fpres_cookie *pc = sc->sc_private;
541 int ret = SLAP_CB_CONTINUE;
543 switch ( rs->sr_type ) {
545 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
547 pc->uuids[pc->num].bv_val = pc->last;
548 AC_MEMCPY( pc->uuids[pc->num].bv_val, a->a_nvals[0].bv_val,
549 pc->uuids[pc->num].bv_len );
551 pc->last = pc->uuids[pc->num].bv_val;
552 pc->uuids[pc->num].bv_val = NULL;
555 if ( pc->num != SLAP_SYNCUUID_SET_SIZE )
561 ret = syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET, NULL,
563 pc->uuids[pc->num].bv_val = pc->last;
565 pc->last = pc->uuids[0].bv_val;
575 syncprov_findcsn( Operation *op, find_csn_t mode )
577 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
578 syncprov_info_t *si = on->on_bi.bi_private;
580 slap_callback cb = {0};
582 SlapReply frs = { REP_RESULT };
583 char buf[LDAP_LUTIL_CSNSTR_BUFSIZE + STRLENOF("(entryCSN<=)")];
584 char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
585 struct berval maxcsn;
587 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
588 fpres_cookie pcookie;
589 sync_control *srs = NULL;
590 struct slap_limits_set fc_limits;
591 int i, rc = LDAP_SUCCESS, findcsn_retry = 1;
594 if ( mode != FIND_MAXCSN ) {
595 srs = op->o_controls[slap_cids.sc_LDAPsync];
599 fop.o_sync_mode &= SLAP_CONTROL_MASK; /* turn off sync_mode */
600 /* We want pure entries, not referrals */
601 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
604 cf.f_av_desc = slap_schema.si_ad_entryCSN;
605 BER_BVZERO( &cf.f_av_value );
608 fop.o_callback = &cb;
609 fop.ors_limit = NULL;
610 fop.ors_tlimit = SLAP_NO_LIMIT;
611 fop.ors_filter = &cf;
612 fop.ors_filterstr.bv_val = buf;
617 cf.f_choice = LDAP_FILTER_GE;
618 /* If there are multiple CSNs, use the one with our serverID */
619 for ( i=0; i<si->si_numcsns; i++) {
620 if ( slap_serverID == si->si_sids[i] ) {
625 if ( i == si->si_numcsns ) {
626 /* No match: this is multimaster, and none of the content in the DB
627 * originated locally. Treat like no CSN.
629 return LDAP_NO_SUCH_OBJECT;
631 cf.f_av_value = si->si_ctxcsn[maxid];
632 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
633 "(entryCSN>=%s)", cf.f_av_value.bv_val );
634 if ( fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
637 fop.ors_attrsonly = 0;
638 fop.ors_attrs = csn_anlist;
639 fop.ors_slimit = SLAP_NO_LIMIT;
640 cb.sc_private = &maxcsn;
641 cb.sc_response = findmax_cb;
642 strcpy( cbuf, cf.f_av_value.bv_val );
643 maxcsn.bv_val = cbuf;
644 maxcsn.bv_len = cf.f_av_value.bv_len;
647 if ( BER_BVISEMPTY( &cf.f_av_value )) {
648 cf.f_av_value = srs->sr_state.ctxcsn[0];
649 /* If there are multiple CSNs, use the smallest */
650 for ( i=1; i<srs->sr_state.numcsns; i++ ) {
651 if ( ber_bvcmp( &cf.f_av_value, &srs->sr_state.ctxcsn[i] )
653 cf.f_av_value = srs->sr_state.ctxcsn[i];
657 /* Look for exact match the first time */
658 if ( findcsn_retry ) {
659 cf.f_choice = LDAP_FILTER_EQUALITY;
660 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
661 "(entryCSN=%s)", cf.f_av_value.bv_val );
662 /* On retry, look for <= */
664 cf.f_choice = LDAP_FILTER_LE;
665 fop.ors_limit = &fc_limits;
666 memset( &fc_limits, 0, sizeof( fc_limits ));
667 fc_limits.lms_s_unchecked = 1;
668 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
669 "(entryCSN<=%s)", cf.f_av_value.bv_val );
671 if ( fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
674 fop.ors_attrsonly = 1;
675 fop.ors_attrs = slap_anlist_no_attrs;
677 cb.sc_private = NULL;
678 cb.sc_response = findcsn_cb;
681 fop.ors_filter = op->ors_filter;
682 fop.ors_filterstr = op->ors_filterstr;
683 fop.ors_attrsonly = 0;
684 fop.ors_attrs = uuid_anlist;
685 fop.ors_slimit = SLAP_NO_LIMIT;
686 cb.sc_private = &pcookie;
687 cb.sc_response = findpres_cb;
690 /* preallocate storage for a full set */
691 pcookie.uuids = op->o_tmpalloc( (SLAP_SYNCUUID_SET_SIZE+1) *
692 sizeof(struct berval) + SLAP_SYNCUUID_SET_SIZE * UUID_LEN,
694 pcookie.last = (char *)(pcookie.uuids + SLAP_SYNCUUID_SET_SIZE+1);
695 pcookie.uuids[0].bv_val = pcookie.last;
696 pcookie.uuids[0].bv_len = UUID_LEN;
697 for (i=1; i<SLAP_SYNCUUID_SET_SIZE; i++) {
698 pcookie.uuids[i].bv_val = pcookie.uuids[i-1].bv_val + UUID_LEN;
699 pcookie.uuids[i].bv_len = UUID_LEN;
704 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
705 fop.o_bd->be_search( &fop, &frs );
706 fop.o_bd->bd_info = (BackendInfo *)on;
710 if ( ber_bvcmp( &si->si_ctxcsn[maxid], &maxcsn )) {
712 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
713 assert( !syn->ssyn_validate( syn, &maxcsn ));
715 ber_bvreplace( &si->si_ctxcsn[maxid], &maxcsn );
716 si->si_numops++; /* ensure a checkpoint */
720 /* If matching CSN was not found, invalidate the context. */
721 if ( !cb.sc_private ) {
722 /* If we didn't find an exact match, then try for <= */
723 if ( findcsn_retry ) {
727 rc = LDAP_NO_SUCH_OBJECT;
731 op->o_tmpfree( pcookie.uuids, op->o_tmpmemctx );
739 syncprov_free_syncop( syncops *so )
741 syncres *sr, *srnext;
742 GroupAssertion *ga, *gnext;
744 ldap_pvt_thread_mutex_lock( &so->s_mutex );
745 if ( --so->s_inuse > 0 ) {
746 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
750 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
751 if ( ldap_pvt_runqueue_isrunning( &slapd_rq, so->s_qtask ) )
752 ldap_pvt_runqueue_stoptask( &slapd_rq, so->s_qtask );
753 ldap_pvt_runqueue_remove( &slapd_rq, so->s_qtask );
754 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
756 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
757 if ( so->s_flags & PS_IS_DETACHED ) {
758 filter_free( so->s_op->ors_filter );
759 for ( ga = so->s_op->o_groups; ga; ga=gnext ) {
765 ch_free( so->s_base.bv_val );
766 for ( sr=so->s_res; sr; sr=srnext ) {
770 ldap_pvt_thread_mutex_destroy( &so->s_mutex );
774 /* Send a persistent search response */
776 syncprov_sendresp( Operation *op, opcookie *opc, syncops *so,
777 Entry **e, int mode )
779 slap_overinst *on = opc->son;
781 SlapReply rs = { REP_SEARCH };
782 LDAPControl *ctrls[2];
783 struct berval cookie, csns[2];
785 Attribute a_uuid = {0};
787 if ( so->s_op->o_abandon )
788 return SLAPD_ABANDON;
791 csns[0] = opc->sctxcsn;
792 BER_BVZERO( &csns[1] );
793 slap_compose_sync_cookie( op, &cookie, csns, so->s_rid, so->s_sid );
795 Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: cookie=%s\n", cookie.bv_val, 0, 0 );
797 e_uuid.e_attrs = &a_uuid;
798 a_uuid.a_desc = slap_schema.si_ad_entryUUID;
799 a_uuid.a_nvals = &opc->suuid;
800 rs.sr_err = syncprov_state_ctrl( op, &rs, &e_uuid,
801 mode, ctrls, 0, 1, &cookie );
802 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
805 op->o_bd->bd_info = (BackendInfo *)on->on_info;
809 if ( rs.sr_entry->e_private )
810 rs.sr_flags = REP_ENTRY_MUSTRELEASE;
811 if ( opc->sreference && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
812 rs.sr_ref = get_entry_referrals( op, rs.sr_entry );
813 rs.sr_err = send_search_reference( op, &rs );
814 ber_bvarray_free( rs.sr_ref );
820 case LDAP_SYNC_MODIFY:
822 if ( rs.sr_entry->e_private )
823 rs.sr_flags = REP_ENTRY_MUSTRELEASE;
824 rs.sr_attrs = op->ors_attrs;
825 rs.sr_err = send_search_entry( op, &rs );
829 case LDAP_SYNC_DELETE:
830 e_uuid.e_attrs = NULL;
831 e_uuid.e_name = opc->sdn;
832 e_uuid.e_nname = opc->sndn;
833 rs.sr_entry = &e_uuid;
834 if ( opc->sreference && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
835 struct berval bv = BER_BVNULL;
837 rs.sr_err = send_search_reference( op, &rs );
839 rs.sr_err = send_search_entry( op, &rs );
845 /* In case someone else freed it already? */
847 op->o_tmpfree( rs.sr_ctrls[0], op->o_tmpmemctx );
854 /* Play back queued responses */
856 syncprov_qplay( Operation *op, struct re_s *rtask )
858 syncops *so = rtask->arg;
859 slap_overinst *on = LDAP_SLIST_FIRST(&so->s_op->o_extra)->oe_key;
868 ldap_pvt_thread_mutex_lock( &so->s_mutex );
871 so->s_res = sr->s_next;
873 so->s_restail = NULL;
874 /* Exit loop with mutex held */
875 if ( !sr || so->s_op->o_abandon )
877 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
880 opc.sndn = sr->s_ndn;
881 opc.suuid = sr->s_uuid;
882 opc.sctxcsn = sr->s_csn;
883 opc.sreference = sr->s_isreference;
886 if ( sr->s_mode != LDAP_SYNC_DELETE ) {
887 rc = overlay_entry_get_ov( op, &opc.sndn, NULL, NULL, 0, &e, on );
889 Debug( LDAP_DEBUG_SYNC, "syncprov_qplay: failed to get %s, "
890 "error (%d), ignoring...\n", opc.sndn.bv_val, rc, 0 );
896 rc = syncprov_sendresp( op, &opc, so, &e, sr->s_mode );
899 overlay_entry_release_ov( op, e, 0, on );
905 /* Exit loop with mutex held */
906 ldap_pvt_thread_mutex_lock( &so->s_mutex );
911 /* wait until we get explicitly scheduled again */
912 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
913 ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
915 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 1 );
917 /* bail out on any error */
918 ldap_pvt_runqueue_remove( &slapd_rq, rtask );
920 /* Prevent duplicate remove */
921 if ( so->s_qtask == rtask )
924 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
925 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
929 /* runqueue task for playing back queued responses */
931 syncprov_qtask( void *ctx, void *arg )
933 struct re_s *rtask = arg;
934 syncops *so = rtask->arg;
935 OperationBuffer opbuf;
942 op->o_hdr = &opbuf.ob_hdr;
943 op->o_controls = opbuf.ob_controls;
944 memset( op->o_controls, 0, sizeof(opbuf.ob_controls) );
946 *op->o_hdr = *so->s_op->o_hdr;
948 op->o_tmpmemctx = slap_sl_mem_create(SLAP_SLAB_SIZE, SLAP_SLAB_STACK, ctx, 1);
949 op->o_tmpmfuncs = &slap_sl_mfuncs;
950 op->o_threadctx = ctx;
952 /* syncprov_qplay expects a fake db */
953 be = *so->s_op->o_bd;
954 be.be_flags |= SLAP_DBFLAG_OVERLAY;
956 LDAP_SLIST_FIRST(&op->o_extra) = NULL;
957 op->o_callback = NULL;
959 rc = syncprov_qplay( op, rtask );
961 /* decrement use count... */
962 syncprov_free_syncop( so );
964 #if 0 /* FIXME: connection_close isn't exported from slapd.
968 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
969 if ( connection_state_closing( op->o_conn )) {
970 connection_close( op->o_conn );
972 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
978 /* Start the task to play back queued psearch responses */
980 syncprov_qstart( syncops *so )
983 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
984 if ( !so->s_qtask ) {
985 so->s_qtask = ldap_pvt_runqueue_insert( &slapd_rq, RUNQ_INTERVAL,
986 syncprov_qtask, so, "syncprov_qtask",
987 so->s_op->o_conn->c_peer_name.bv_val );
991 if (!ldap_pvt_runqueue_isrunning( &slapd_rq, so->s_qtask ) &&
992 !so->s_qtask->next_sched.tv_sec ) {
993 so->s_qtask->interval.tv_sec = 0;
994 ldap_pvt_runqueue_resched( &slapd_rq, so->s_qtask, 0 );
995 so->s_qtask->interval.tv_sec = RUNQ_INTERVAL;
1000 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
1002 slap_wake_listener();
1005 /* Queue a persistent search response */
1007 syncprov_qresp( opcookie *opc, syncops *so, int mode )
1012 /* Don't send changes back to their originator */
1013 sid = slap_parse_csn_sid( &opc->sctxcsn );
1014 if ( sid >= 0 && sid == so->s_sid )
1015 return LDAP_SUCCESS;
1017 srsize = sizeof(syncres) + opc->suuid.bv_len + 1 +
1018 opc->sdn.bv_len + 1 + opc->sndn.bv_len + 1;
1019 if ( opc->sctxcsn.bv_len )
1020 srsize += opc->sctxcsn.bv_len + 1;
1021 sr = ch_malloc( srsize );
1023 sr->s_dn.bv_val = (char *)(sr + 1);
1024 sr->s_dn.bv_len = opc->sdn.bv_len;
1026 sr->s_isreference = opc->sreference;
1027 sr->s_ndn.bv_val = lutil_strcopy( sr->s_dn.bv_val,
1028 opc->sdn.bv_val ) + 1;
1029 sr->s_ndn.bv_len = opc->sndn.bv_len;
1030 sr->s_uuid.bv_val = lutil_strcopy( sr->s_ndn.bv_val,
1031 opc->sndn.bv_val ) + 1;
1032 sr->s_uuid.bv_len = opc->suuid.bv_len;
1033 AC_MEMCPY( sr->s_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1034 if ( opc->sctxcsn.bv_len ) {
1035 sr->s_csn.bv_val = sr->s_uuid.bv_val + sr->s_uuid.bv_len + 1;
1036 strcpy( sr->s_csn.bv_val, opc->sctxcsn.bv_val );
1038 sr->s_csn.bv_val = NULL;
1040 sr->s_csn.bv_len = opc->sctxcsn.bv_len;
1042 ldap_pvt_thread_mutex_lock( &so->s_mutex );
1046 so->s_restail->s_next = sr;
1050 /* If the base of the psearch was modified, check it next time round */
1051 if ( so->s_flags & PS_WROTE_BASE ) {
1052 so->s_flags ^= PS_WROTE_BASE;
1053 so->s_flags |= PS_FIND_BASE;
1055 if ( so->s_flags & PS_IS_DETACHED ) {
1056 syncprov_qstart( so );
1058 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
1059 return LDAP_SUCCESS;
1063 syncprov_drop_psearch( syncops *so, int lock )
1065 if ( so->s_flags & PS_IS_DETACHED ) {
1067 ldap_pvt_thread_mutex_lock( &so->s_op->o_conn->c_mutex );
1068 so->s_op->o_conn->c_n_ops_executing--;
1069 so->s_op->o_conn->c_n_ops_completed++;
1070 LDAP_STAILQ_REMOVE( &so->s_op->o_conn->c_ops, so->s_op, Operation,
1073 ldap_pvt_thread_mutex_unlock( &so->s_op->o_conn->c_mutex );
1075 syncprov_free_syncop( so );
1081 syncprov_ab_cleanup( Operation *op, SlapReply *rs )
1083 slap_callback *sc = op->o_callback;
1084 op->o_callback = sc->sc_next;
1085 syncprov_drop_psearch( op->o_callback->sc_private, 0 );
1086 op->o_tmpfree( sc, op->o_tmpmemctx );
1091 syncprov_op_abandon( Operation *op, SlapReply *rs )
1093 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1094 syncprov_info_t *si = on->on_bi.bi_private;
1095 syncops *so, *soprev;
1097 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1098 for ( so=si->si_ops, soprev = (syncops *)&si->si_ops; so;
1099 soprev=so, so=so->s_next ) {
1100 if ( so->s_op->o_connid == op->o_connid &&
1101 so->s_op->o_msgid == op->orn_msgid ) {
1102 so->s_op->o_abandon = 1;
1103 soprev->s_next = so->s_next;
1107 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1109 /* Is this really a Cancel exop? */
1110 if ( op->o_tag != LDAP_REQ_ABANDON ) {
1111 so->s_op->o_cancel = SLAP_CANCEL_ACK;
1112 rs->sr_err = LDAP_CANCELLED;
1113 send_ldap_result( so->s_op, rs );
1114 if ( so->s_flags & PS_IS_DETACHED ) {
1116 cb = op->o_tmpcalloc( 1, sizeof(slap_callback), op->o_tmpmemctx );
1117 cb->sc_cleanup = syncprov_ab_cleanup;
1118 cb->sc_next = op->o_callback;
1119 cb->sc_private = so;
1120 return SLAP_CB_CONTINUE;
1123 syncprov_drop_psearch( so, 0 );
1125 return SLAP_CB_CONTINUE;
1128 /* Find which persistent searches are affected by this operation */
1130 syncprov_matchops( Operation *op, opcookie *opc, int saveit )
1132 slap_overinst *on = opc->son;
1133 syncprov_info_t *si = on->on_bi.bi_private;
1136 syncops *ss, *sprev, *snext;
1140 struct berval newdn;
1142 BackendDB *b0 = op->o_bd, db;
1144 fc.fdn = &op->o_req_ndn;
1145 /* compute new DN */
1146 if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1148 if ( op->orr_nnewSup ) pdn = *op->orr_nnewSup;
1149 else dnParent( fc.fdn, &pdn );
1150 build_new_dn( &newdn, &pdn, &op->orr_nnewrdn, op->o_tmpmemctx );
1154 if ( op->o_tag != LDAP_REQ_ADD ) {
1155 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1159 rc = overlay_entry_get_ov( op, fc.fdn, NULL, NULL, 0, &e, on );
1160 /* If we're sending responses now, make a copy and unlock the DB */
1161 if ( e && !saveit ) {
1162 Entry *e2 = entry_dup( e );
1163 overlay_entry_release_ov( op, e, 0, on );
1174 if ( saveit || op->o_tag == LDAP_REQ_ADD ) {
1175 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1176 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1177 opc->sreference = is_entry_referral( e );
1178 a = attr_find( e->e_attrs, slap_schema.si_ad_entryUUID );
1180 ber_dupbv_x( &opc->suuid, &a->a_nvals[0], op->o_tmpmemctx );
1181 } else if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1182 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1183 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1184 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1185 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1188 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1189 for (ss = si->si_ops, sprev = (syncops *)&si->si_ops; ss;
1190 sprev = ss, ss=snext)
1198 if ( ss->s_op->o_abandon )
1206 /* If the base of the search is missing, signal a refresh */
1207 rc = syncprov_findbase( op, &fc );
1208 if ( rc != LDAP_SUCCESS ) {
1209 SlapReply rs = {REP_RESULT};
1210 send_ldap_error( ss->s_op, &rs, LDAP_SYNC_REFRESH_REQUIRED,
1211 "search base has changed" );
1212 sprev->s_next = snext;
1213 syncprov_drop_psearch( ss, 1 );
1219 /* If we're sending results now, look for this op in old matches */
1223 /* Did we modify the search base? */
1224 if ( dn_match( &op->o_req_ndn, &ss->s_base )) {
1225 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1226 ss->s_flags |= PS_WROTE_BASE;
1227 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1230 for ( sm=opc->smatches, old=(syncmatches *)&opc->smatches; sm;
1231 old=sm, sm=sm->sm_next ) {
1232 if ( sm->sm_op == ss ) {
1234 old->sm_next = sm->sm_next;
1235 op->o_tmpfree( sm, op->o_tmpmemctx );
1244 oh.oh_conn = ss->s_op->o_conn;
1245 oh.oh_connid = ss->s_op->o_connid;
1247 op2.o_extra = op->o_extra;
1250 /* check if current o_req_dn is in scope and matches filter */
1251 if ( fc.fscope && test_filter( &op2, e, ss->s_op->ors_filter ) ==
1252 LDAP_COMPARE_TRUE ) {
1254 sm = op->o_tmpalloc( sizeof(syncmatches), op->o_tmpmemctx );
1255 sm->sm_next = opc->smatches;
1257 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1259 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1262 /* if found send UPDATE else send ADD */
1263 syncprov_qresp( opc, ss,
1264 found ? LDAP_SYNC_MODIFY : LDAP_SYNC_ADD );
1266 } else if ( !saveit && found ) {
1268 syncprov_qresp( opc, ss, LDAP_SYNC_DELETE );
1270 if ( !saveit && found ) {
1271 /* Decrement s_inuse, was incremented when called
1272 * with saveit == TRUE
1274 syncprov_free_syncop( ss );
1277 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1279 if ( op->o_tag != LDAP_REQ_ADD && e ) {
1280 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1283 overlay_entry_release_ov( op, e, 0, on );
1287 op->o_tmpfree( fc.fdn->bv_val, op->o_tmpmemctx );
1293 syncprov_op_cleanup( Operation *op, SlapReply *rs )
1295 slap_callback *cb = op->o_callback;
1296 opcookie *opc = cb->sc_private;
1297 slap_overinst *on = opc->son;
1298 syncprov_info_t *si = on->on_bi.bi_private;
1299 syncmatches *sm, *snext;
1300 modtarget *mt, mtdummy;
1302 for (sm = opc->smatches; sm; sm=snext) {
1303 snext = sm->sm_next;
1304 syncprov_free_syncop( sm->sm_op );
1305 op->o_tmpfree( sm, op->o_tmpmemctx );
1308 /* Remove op from lock table */
1310 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1311 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
1313 modinst *mi = mt->mt_mods;
1315 /* If there are more, promote the next one */
1316 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1317 if ( mi->mi_next ) {
1318 mt->mt_mods = mi->mi_next;
1319 mt->mt_op = mt->mt_mods->mi_op;
1320 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1322 avl_delete( &si->si_mods, mt, sp_avl_cmp );
1323 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1324 ldap_pvt_thread_mutex_destroy( &mt->mt_mutex );
1328 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1329 if ( !BER_BVISNULL( &opc->suuid ))
1330 op->o_tmpfree( opc->suuid.bv_val, op->o_tmpmemctx );
1331 if ( !BER_BVISNULL( &opc->sndn ))
1332 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1333 if ( !BER_BVISNULL( &opc->sdn ))
1334 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1335 op->o_callback = cb->sc_next;
1336 op->o_tmpfree(cb, op->o_tmpmemctx);
1342 syncprov_checkpoint( Operation *op, SlapReply *rs, slap_overinst *on )
1344 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
1347 SlapReply rsm = { 0 };
1348 slap_callback cb = {0};
1351 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1354 for ( i=0; i<si->si_numcsns; i++ ) {
1355 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1358 mod.sml_numvals = si->si_numcsns;
1359 mod.sml_values = si->si_ctxcsn;
1360 mod.sml_nvalues = NULL;
1361 mod.sml_desc = slap_schema.si_ad_contextCSN;
1362 mod.sml_op = LDAP_MOD_REPLACE;
1363 mod.sml_flags = SLAP_MOD_INTERNAL;
1364 mod.sml_next = NULL;
1366 cb.sc_response = slap_null_cb;
1368 opm.o_tag = LDAP_REQ_MODIFY;
1369 opm.o_callback = &cb;
1370 opm.orm_modlist = &mod;
1371 opm.orm_no_opattrs = 1;
1372 if ( SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1373 be = *on->on_info->oi_origdb;
1376 opm.o_req_dn = opm.o_bd->be_suffix[0];
1377 opm.o_req_ndn = opm.o_bd->be_nsuffix[0];
1378 opm.o_bd->bd_info = on->on_info->oi_orig;
1379 opm.o_managedsait = SLAP_CONTROL_NONCRITICAL;
1380 opm.o_no_schema_check = 1;
1381 opm.o_bd->be_modify( &opm, &rsm );
1382 if ( mod.sml_next != NULL ) {
1383 slap_mods_free( mod.sml_next, 1 );
1386 for ( i=0; i<si->si_numcsns; i++ ) {
1387 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1393 syncprov_add_slog( Operation *op )
1395 opcookie *opc = op->o_callback->sc_private;
1396 slap_overinst *on = opc->son;
1397 syncprov_info_t *si = on->on_bi.bi_private;
1403 /* Allocate a record. UUIDs are not NUL-terminated. */
1404 se = ch_malloc( sizeof( slog_entry ) + opc->suuid.bv_len +
1405 op->o_csn.bv_len + 1 );
1407 se->se_tag = op->o_tag;
1409 se->se_uuid.bv_val = (char *)(&se[1]);
1410 AC_MEMCPY( se->se_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1411 se->se_uuid.bv_len = opc->suuid.bv_len;
1413 se->se_csn.bv_val = se->se_uuid.bv_val + opc->suuid.bv_len;
1414 AC_MEMCPY( se->se_csn.bv_val, op->o_csn.bv_val, op->o_csn.bv_len );
1415 se->se_csn.bv_val[op->o_csn.bv_len] = '\0';
1416 se->se_csn.bv_len = op->o_csn.bv_len;
1417 se->se_sid = slap_parse_csn_sid( &se->se_csn );
1419 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1420 if ( sl->sl_head ) {
1421 sl->sl_tail->se_next = se;
1427 while ( sl->sl_num > sl->sl_size ) {
1429 sl->sl_head = se->se_next;
1430 strcpy( sl->sl_mincsn.bv_val, se->se_csn.bv_val );
1431 sl->sl_mincsn.bv_len = se->se_csn.bv_len;
1435 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1439 /* Just set a flag if we found the matching entry */
1441 playlog_cb( Operation *op, SlapReply *rs )
1443 if ( rs->sr_type == REP_SEARCH ) {
1444 op->o_callback->sc_private = (void *)1;
1449 /* enter with sl->sl_mutex locked, release before returning */
1451 syncprov_playlog( Operation *op, SlapReply *rs, sessionlog *sl,
1452 sync_control *srs, BerVarray ctxcsn, int numcsns, int *sids )
1454 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1456 int i, j, ndel, num, nmods, mmods;
1457 char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
1459 struct berval delcsn[2];
1461 if ( !sl->sl_num ) {
1462 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1470 uuids = op->o_tmpalloc( (num+1) * sizeof( struct berval ) +
1471 num * UUID_LEN, op->o_tmpmemctx );
1472 uuids[0].bv_val = (char *)(uuids + num + 1);
1474 delcsn[0].bv_len = 0;
1475 delcsn[0].bv_val = cbuf;
1476 BER_BVZERO(&delcsn[1]);
1478 /* Make a copy of the relevant UUIDs. Put the Deletes up front
1479 * and everything else at the end. Do this first so we can
1480 * unlock the list mutex.
1482 Debug( LDAP_DEBUG_SYNC, "srs csn %s\n",
1483 srs->sr_state.ctxcsn[0].bv_val, 0, 0 );
1484 for ( se=sl->sl_head; se; se=se->se_next ) {
1486 Debug( LDAP_DEBUG_SYNC, "log csn %s\n", se->se_csn.bv_val, 0, 0 );
1488 for ( k=0; k<srs->sr_state.numcsns; k++ ) {
1489 if ( se->se_sid == srs->sr_state.sids[k] ) {
1490 ndel = ber_bvcmp( &se->se_csn, &srs->sr_state.ctxcsn[k] );
1495 Debug( LDAP_DEBUG_SYNC, "cmp %d, too old\n", ndel, 0, 0 );
1499 for ( k=0; k<numcsns; k++ ) {
1500 if ( se->se_sid == sids[k] ) {
1501 ndel = ber_bvcmp( &se->se_csn, &ctxcsn[k] );
1506 Debug( LDAP_DEBUG_SYNC, "cmp %d, too new\n", ndel, 0, 0 );
1509 if ( se->se_tag == LDAP_REQ_DELETE ) {
1512 AC_MEMCPY( cbuf, se->se_csn.bv_val, se->se_csn.bv_len );
1513 delcsn[0].bv_len = se->se_csn.bv_len;
1514 delcsn[0].bv_val[delcsn[0].bv_len] = '\0';
1519 uuids[j].bv_val = uuids[0].bv_val + (j * UUID_LEN);
1520 AC_MEMCPY(uuids[j].bv_val, se->se_uuid.bv_val, UUID_LEN);
1521 uuids[j].bv_len = UUID_LEN;
1523 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1527 /* Zero out unused slots */
1528 for ( i=ndel; i < num - nmods; i++ )
1529 uuids[i].bv_len = 0;
1531 /* Mods must be validated to see if they belong in this delete set.
1535 /* Strip any duplicates */
1536 for ( i=0; i<nmods; i++ ) {
1537 for ( j=0; j<ndel; j++ ) {
1538 if ( bvmatch( &uuids[j], &uuids[num - 1 - i] )) {
1539 uuids[num - 1 - i].bv_len = 0;
1544 if ( uuids[num - 1 - i].bv_len == 0 ) continue;
1545 for ( j=0; j<i; j++ ) {
1546 if ( bvmatch( &uuids[num - 1 - j], &uuids[num - 1 - i] )) {
1547 uuids[num - 1 - i].bv_len = 0;
1556 SlapReply frs = { REP_RESULT };
1559 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
1560 slap_callback cb = {0};
1564 fop.o_sync_mode = 0;
1565 fop.o_callback = &cb;
1566 fop.ors_limit = NULL;
1567 fop.ors_tlimit = SLAP_NO_LIMIT;
1568 fop.ors_attrs = slap_anlist_all_attributes;
1569 fop.ors_attrsonly = 0;
1570 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
1572 af.f_choice = LDAP_FILTER_AND;
1575 mf.f_choice = LDAP_FILTER_EQUALITY;
1577 mf.f_av_desc = slap_schema.si_ad_entryUUID;
1578 mf.f_next = fop.ors_filter;
1580 fop.ors_filter = ⁡
1582 cb.sc_response = playlog_cb;
1583 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
1585 for ( i=ndel; i<num; i++ ) {
1586 if ( uuids[i].bv_len == 0 ) continue;
1588 mf.f_av_value = uuids[i];
1589 cb.sc_private = NULL;
1591 frs.sr_nentries = 0;
1592 rc = fop.o_bd->be_search( &fop, &frs );
1594 /* If entry was not found, add to delete list */
1595 if ( !cb.sc_private ) {
1596 uuids[ndel++] = uuids[i];
1599 fop.o_bd->bd_info = (BackendInfo *)on;
1602 struct berval cookie;
1604 if ( delcsn[0].bv_len ) {
1605 slap_compose_sync_cookie( op, &cookie, delcsn, srs->sr_state.rid,
1606 srs->sr_state.sid );
1608 Debug( LDAP_DEBUG_SYNC, "syncprov_playlog: cookie=%s\n", cookie.bv_val, 0, 0 );
1611 uuids[ndel].bv_val = NULL;
1612 syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET,
1613 delcsn[0].bv_len ? &cookie : NULL, 0, uuids, 1 );
1614 if ( delcsn[0].bv_len ) {
1615 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
1618 op->o_tmpfree( uuids, op->o_tmpmemctx );
1622 syncprov_op_response( Operation *op, SlapReply *rs )
1624 opcookie *opc = op->o_callback->sc_private;
1625 slap_overinst *on = opc->son;
1626 syncprov_info_t *si = on->on_bi.bi_private;
1629 if ( rs->sr_err == LDAP_SUCCESS )
1631 struct berval maxcsn;
1632 char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
1633 int do_check = 0, have_psearches, foundit;
1635 /* Update our context CSN */
1637 maxcsn.bv_val = cbuf;
1638 maxcsn.bv_len = sizeof(cbuf);
1639 ldap_pvt_thread_rdwr_wlock( &si->si_csn_rwlock );
1640 slap_get_commit_csn( op, &maxcsn, &foundit );
1641 if ( BER_BVISEMPTY( &maxcsn ) && SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1642 /* syncrepl queues the CSN values in the db where
1643 * it is configured , not where the changes are made.
1644 * So look for a value in the glue db if we didn't
1645 * find any in this db.
1647 BackendDB *be = op->o_bd;
1648 op->o_bd = select_backend( &be->be_nsuffix[0], 1);
1649 maxcsn.bv_val = cbuf;
1650 maxcsn.bv_len = sizeof(cbuf);
1651 slap_get_commit_csn( op, &maxcsn, &foundit );
1654 if ( !BER_BVISEMPTY( &maxcsn ) ) {
1657 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1658 assert( !syn->ssyn_validate( syn, &maxcsn ));
1660 sid = slap_parse_csn_sid( &maxcsn );
1661 for ( i=0; i<si->si_numcsns; i++ ) {
1662 if ( sid == si->si_sids[i] ) {
1663 if ( ber_bvcmp( &maxcsn, &si->si_ctxcsn[i] ) > 0 ) {
1664 ber_bvreplace( &si->si_ctxcsn[i], &maxcsn );
1669 /* It's a new SID for us */
1670 if ( i == si->si_numcsns ) {
1671 value_add_one( &si->si_ctxcsn, &maxcsn );
1673 si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
1675 si->si_sids[i] = sid;
1677 } else if ( !foundit ) {
1678 /* internal ops that aren't meant to be replicated */
1679 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1680 return SLAP_CB_CONTINUE;
1683 /* Don't do any processing for consumer contextCSN updates */
1684 if ( op->o_dont_replicate ) {
1685 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1686 return SLAP_CB_CONTINUE;
1690 if ( si->si_chkops || si->si_chktime ) {
1691 if ( si->si_chkops && si->si_numops >= si->si_chkops ) {
1695 if ( si->si_chktime &&
1696 (op->o_time - si->si_chklast >= si->si_chktime )) {
1697 if ( si->si_chklast ) {
1699 si->si_chklast = op->o_time;
1705 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1708 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1709 syncprov_checkpoint( op, rs, on );
1710 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1713 /* only update consumer ctx if this is the greatest csn */
1714 if ( bvmatch( &maxcsn, &op->o_csn )) {
1715 opc->sctxcsn = maxcsn;
1718 /* Handle any persistent searches */
1719 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1720 have_psearches = ( si->si_ops != NULL );
1721 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1722 if ( have_psearches ) {
1725 case LDAP_REQ_MODIFY:
1726 case LDAP_REQ_MODRDN:
1727 case LDAP_REQ_EXTENDED:
1728 syncprov_matchops( op, opc, 0 );
1730 case LDAP_REQ_DELETE:
1731 /* for each match in opc->smatches:
1734 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1735 if ( sm->sm_op->s_op->o_abandon )
1737 syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_DELETE );
1743 /* Add any log records */
1744 if ( si->si_logs && op->o_tag != LDAP_REQ_ADD ) {
1745 syncprov_add_slog( op );
1749 return SLAP_CB_CONTINUE;
1752 /* We don't use a subentry to store the context CSN any more.
1753 * We expose the current context CSN as an operational attribute
1754 * of the suffix entry.
1757 syncprov_op_compare( Operation *op, SlapReply *rs )
1759 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1760 syncprov_info_t *si = on->on_bi.bi_private;
1761 int rc = SLAP_CB_CONTINUE;
1763 if ( dn_match( &op->o_req_ndn, op->o_bd->be_nsuffix ) &&
1764 op->oq_compare.rs_ava->aa_desc == slap_schema.si_ad_contextCSN )
1769 e.e_name = op->o_bd->be_suffix[0];
1770 e.e_nname = op->o_bd->be_nsuffix[0];
1773 a.a_desc = slap_schema.si_ad_contextCSN;
1775 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1777 a.a_vals = si->si_ctxcsn;
1778 a.a_nvals = a.a_vals;
1779 a.a_numvals = si->si_numcsns;
1781 rs->sr_err = access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc,
1782 &op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL );
1783 if ( ! rs->sr_err ) {
1784 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1785 goto return_results;
1788 if ( get_assert( op ) &&
1789 ( test_filter( op, &e, get_assertion( op ) ) != LDAP_COMPARE_TRUE ) )
1791 rs->sr_err = LDAP_ASSERTION_FAILED;
1792 goto return_results;
1796 rs->sr_err = LDAP_COMPARE_FALSE;
1798 if ( attr_valfind( &a,
1799 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
1800 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
1801 &op->oq_compare.rs_ava->aa_value, NULL, op->o_tmpmemctx ) == 0 )
1803 rs->sr_err = LDAP_COMPARE_TRUE;
1808 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1810 send_ldap_result( op, rs );
1812 if( rs->sr_err == LDAP_COMPARE_FALSE || rs->sr_err == LDAP_COMPARE_TRUE ) {
1813 rs->sr_err = LDAP_SUCCESS;
1822 syncprov_op_mod( Operation *op, SlapReply *rs )
1824 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1825 syncprov_info_t *si = on->on_bi.bi_private;
1828 int have_psearches, cbsize;
1830 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1831 have_psearches = ( si->si_ops != NULL );
1832 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1834 cbsize = sizeof(slap_callback) + sizeof(opcookie) +
1835 (have_psearches ? sizeof(modinst) : 0 );
1837 cb = op->o_tmpcalloc(1, cbsize, op->o_tmpmemctx);
1838 opc = (opcookie *)(cb+1);
1840 cb->sc_response = syncprov_op_response;
1841 cb->sc_cleanup = syncprov_op_cleanup;
1842 cb->sc_private = opc;
1843 cb->sc_next = op->o_callback;
1844 op->o_callback = cb;
1846 /* If there are active persistent searches, lock this operation.
1847 * See seqmod.c for the locking logic on its own.
1849 if ( have_psearches ) {
1850 modtarget *mt, mtdummy;
1853 mi = (modinst *)(opc+1);
1856 /* See if we're already modifying this entry... */
1858 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1859 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
1861 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1862 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1863 mt->mt_tail->mi_next = mi;
1865 /* wait for this op to get to head of list */
1866 while ( mt->mt_mods != mi ) {
1867 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1868 /* FIXME: if dynamic config can delete overlays or
1869 * databases we'll have to check for cleanup here.
1870 * Currently it's not an issue because there are
1871 * no dynamic config deletes...
1873 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
1874 ldap_pvt_thread_yield();
1875 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1877 /* clean up if the caller is giving up */
1878 if ( op->o_abandon ) {
1880 for ( m2 = mt->mt_mods; m2->mi_next != mi;
1882 m2->mi_next = mi->mi_next;
1883 if ( mt->mt_tail == mi ) mt->mt_tail = m2;
1884 op->o_tmpfree( cb, op->o_tmpmemctx );
1885 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1886 return SLAPD_ABANDON;
1889 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1891 /* Record that we're modifying this entry now */
1892 mt = ch_malloc( sizeof(modtarget) );
1895 mt->mt_op = mi->mi_op;
1896 ldap_pvt_thread_mutex_init( &mt->mt_mutex );
1897 avl_insert( &si->si_mods, mt, sp_avl_cmp, avl_dup_error );
1898 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1902 if (( have_psearches || si->si_logs ) && op->o_tag != LDAP_REQ_ADD )
1903 syncprov_matchops( op, opc, 1 );
1905 return SLAP_CB_CONTINUE;
1909 syncprov_op_extended( Operation *op, SlapReply *rs )
1911 if ( exop_is_write( op ))
1912 return syncprov_op_mod( op, rs );
1914 return SLAP_CB_CONTINUE;
1917 typedef struct searchstate {
1918 slap_overinst *ss_on;
1920 BerVarray ss_ctxcsn;
1923 #define SS_PRESENT 0x01
1924 #define SS_CHANGED 0x02
1929 syncprov_search_cleanup( Operation *op, SlapReply *rs )
1931 if ( rs->sr_ctrls ) {
1932 op->o_tmpfree( rs->sr_ctrls[0], op->o_tmpmemctx );
1933 op->o_tmpfree( rs->sr_ctrls, op->o_tmpmemctx );
1934 rs->sr_ctrls = NULL;
1939 typedef struct SyncOperationBuffer {
1943 AttributeName sob_extra; /* not always present */
1944 /* Further data allocated here */
1945 } SyncOperationBuffer;
1948 syncprov_detach_op( Operation *op, syncops *so, slap_overinst *on )
1950 SyncOperationBuffer *sopbuf2;
1955 GroupAssertion *g1, *g2;
1957 /* count the search attrs */
1958 for (i=0; op->ors_attrs && !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
1959 alen += op->ors_attrs[i].an_name.bv_len + 1;
1961 /* Make a new copy of the operation */
1962 size = offsetof( SyncOperationBuffer, sob_extra ) +
1963 (i ? ( (i+1) * sizeof(AttributeName) + alen) : 0) +
1964 op->o_req_dn.bv_len + 1 +
1965 op->o_req_ndn.bv_len + 1 +
1966 op->o_ndn.bv_len + 1 +
1967 so->s_filterstr.bv_len + 1;
1968 sopbuf2 = ch_calloc( 1, size );
1969 op2 = &sopbuf2->sob_op;
1970 op2->o_hdr = &sopbuf2->sob_hdr;
1971 LDAP_SLIST_FIRST(&op2->o_extra) = &sopbuf2->sob_oe;
1973 /* Copy the fields we care about explicitly, leave the rest alone */
1974 *op2->o_hdr = *op->o_hdr;
1975 op2->o_tag = op->o_tag;
1976 op2->o_time = op->o_time;
1977 op2->o_bd = on->on_info->oi_origdb;
1978 op2->o_request = op->o_request;
1979 op2->o_managedsait = op->o_managedsait;
1980 LDAP_SLIST_FIRST(&op2->o_extra)->oe_key = on;
1981 LDAP_SLIST_NEXT(LDAP_SLIST_FIRST(&op2->o_extra), oe_next) = NULL;
1983 ptr = (char *) sopbuf2 + offsetof( SyncOperationBuffer, sob_extra );
1985 op2->ors_attrs = (AttributeName *) ptr;
1986 ptr = (char *) &op2->ors_attrs[i+1];
1987 for (i=0; !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
1988 op2->ors_attrs[i] = op->ors_attrs[i];
1989 op2->ors_attrs[i].an_name.bv_val = ptr;
1990 ptr = lutil_strcopy( ptr, op->ors_attrs[i].an_name.bv_val ) + 1;
1992 BER_BVZERO( &op2->ors_attrs[i].an_name );
1995 op2->o_authz = op->o_authz;
1996 op2->o_ndn.bv_val = ptr;
1997 ptr = lutil_strcopy(ptr, op->o_ndn.bv_val) + 1;
1998 op2->o_dn = op2->o_ndn;
1999 op2->o_req_dn.bv_len = op->o_req_dn.bv_len;
2000 op2->o_req_dn.bv_val = ptr;
2001 ptr = lutil_strcopy(ptr, op->o_req_dn.bv_val) + 1;
2002 op2->o_req_ndn.bv_len = op->o_req_ndn.bv_len;
2003 op2->o_req_ndn.bv_val = ptr;
2004 ptr = lutil_strcopy(ptr, op->o_req_ndn.bv_val) + 1;
2005 op2->ors_filterstr.bv_val = ptr;
2006 strcpy( ptr, so->s_filterstr.bv_val );
2007 op2->ors_filterstr.bv_len = so->s_filterstr.bv_len;
2009 /* Skip the AND/GE clause that we stuck on in front */
2010 if ( so->s_flags & PS_FIX_FILTER ) {
2011 op2->ors_filter = op->ors_filter->f_and->f_next;
2012 so->s_flags ^= PS_FIX_FILTER;
2014 op2->ors_filter = op->ors_filter;
2016 op2->ors_filter = filter_dup( op2->ors_filter, NULL );
2019 /* Copy any cached group ACLs individually */
2020 op2->o_groups = NULL;
2021 for ( g1=op->o_groups; g1; g1=g1->ga_next ) {
2022 g2 = ch_malloc( sizeof(GroupAssertion) + g1->ga_len );
2024 strcpy( g2->ga_ndn, g1->ga_ndn );
2025 g2->ga_next = op2->o_groups;
2028 /* Don't allow any further group caching */
2029 op2->o_do_not_cache = 1;
2031 /* Add op2 to conn so abandon will find us */
2032 op->o_conn->c_n_ops_executing++;
2033 op->o_conn->c_n_ops_completed--;
2034 LDAP_STAILQ_INSERT_TAIL( &op->o_conn->c_ops, op2, o_next );
2035 so->s_flags |= PS_IS_DETACHED;
2037 /* Prevent anyone else from trying to send a result for this op */
2042 syncprov_search_response( Operation *op, SlapReply *rs )
2044 searchstate *ss = op->o_callback->sc_private;
2045 slap_overinst *on = ss->ss_on;
2046 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2047 sync_control *srs = op->o_controls[slap_cids.sc_LDAPsync];
2049 if ( rs->sr_type == REP_SEARCH || rs->sr_type == REP_SEARCHREF ) {
2051 /* If we got a referral without a referral object, there's
2052 * something missing that we cannot replicate. Just ignore it.
2053 * The consumer will abort because we didn't send the expected
2056 if ( !rs->sr_entry ) {
2057 assert( rs->sr_entry != NULL );
2058 Debug( LDAP_DEBUG_ANY, "bogus referral in context\n",0,0,0 );
2059 return SLAP_CB_CONTINUE;
2061 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryCSN );
2062 if ( a == NULL && rs->sr_operational_attrs != NULL ) {
2063 a = attr_find( rs->sr_operational_attrs, slap_schema.si_ad_entryCSN );
2067 sid = slap_parse_csn_sid( &a->a_nvals[0] );
2069 /* Don't send changed entries back to the originator */
2070 if ( sid == srs->sr_state.sid && srs->sr_state.numcsns ) {
2071 Debug( LDAP_DEBUG_SYNC,
2072 "Entry %s changed by peer, ignored\n",
2073 rs->sr_entry->e_name.bv_val, 0, 0 );
2074 return LDAP_SUCCESS;
2077 /* If not a persistent search */
2079 /* Make sure entry is less than the snapshot'd contextCSN */
2080 for ( i=0; i<ss->ss_numcsns; i++ ) {
2081 if ( sid == ss->ss_sids[i] && ber_bvcmp( &a->a_nvals[0],
2082 &ss->ss_ctxcsn[i] ) > 0 ) {
2083 Debug( LDAP_DEBUG_SYNC,
2084 "Entry %s CSN %s greater than snapshot %s\n",
2085 rs->sr_entry->e_name.bv_val,
2086 a->a_nvals[0].bv_val,
2087 ss->ss_ctxcsn[i].bv_val );
2088 return LDAP_SUCCESS;
2093 /* Don't send old entries twice */
2094 if ( srs->sr_state.ctxcsn ) {
2095 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2096 if ( sid == srs->sr_state.sids[i] &&
2097 ber_bvcmp( &a->a_nvals[0],
2098 &srs->sr_state.ctxcsn[i] )<= 0 ) {
2099 Debug( LDAP_DEBUG_SYNC,
2100 "Entry %s CSN %s older or equal to ctx %s\n",
2101 rs->sr_entry->e_name.bv_val,
2102 a->a_nvals[0].bv_val,
2103 srs->sr_state.ctxcsn[i].bv_val );
2104 return LDAP_SUCCESS;
2109 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2111 rs->sr_ctrls[1] = NULL;
2112 /* If we're in delta-sync mode, always send a cookie */
2113 if ( si->si_nopres && si->si_usehint && a ) {
2114 struct berval cookie;
2115 slap_compose_sync_cookie( op, &cookie, a->a_nvals, srs->sr_state.rid, srs->sr_state.sid );
2116 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2117 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 1, &cookie );
2119 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2120 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 0, NULL );
2122 } else if ( rs->sr_type == REP_RESULT && rs->sr_err == LDAP_SUCCESS ) {
2123 struct berval cookie;
2125 if ( ss->ss_flags & SS_CHANGED ) {
2126 slap_compose_sync_cookie( op, &cookie, ss->ss_ctxcsn,
2127 srs->sr_state.rid, srs->sr_state.sid );
2129 Debug( LDAP_DEBUG_SYNC, "syncprov_search_response: cookie=%s\n", cookie.bv_val, 0, 0 );
2132 /* Is this a regular refresh?
2133 * Note: refresh never gets here if there were no changes
2136 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2138 rs->sr_ctrls[1] = NULL;
2139 rs->sr_err = syncprov_done_ctrl( op, rs, rs->sr_ctrls,
2140 0, 1, &cookie, ( ss->ss_flags & SS_PRESENT ) ? LDAP_SYNC_REFRESH_PRESENTS :
2141 LDAP_SYNC_REFRESH_DELETES );
2142 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2144 /* It's RefreshAndPersist, transition to Persist phase */
2145 syncprov_sendinfo( op, rs, ( ss->ss_flags & SS_PRESENT ) ?
2146 LDAP_TAG_SYNC_REFRESH_PRESENT : LDAP_TAG_SYNC_REFRESH_DELETE,
2147 ( ss->ss_flags & SS_CHANGED ) ? &cookie : NULL,
2149 if ( ss->ss_flags & SS_CHANGED )
2150 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2152 /* Detach this Op from frontend control */
2153 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
2155 /* But not if this connection was closed along the way */
2156 if ( op->o_abandon ) {
2157 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2158 /* syncprov_ab_cleanup will free this syncop */
2159 return SLAPD_ABANDON;
2162 ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex );
2163 /* Turn off the refreshing flag */
2164 ss->ss_so->s_flags ^= PS_IS_REFRESHING;
2166 syncprov_detach_op( op, ss->ss_so, on );
2168 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2170 /* If there are queued responses, fire them off */
2171 if ( ss->ss_so->s_res )
2172 syncprov_qstart( ss->ss_so );
2173 ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
2176 return LDAP_SUCCESS;
2180 return SLAP_CB_CONTINUE;
2184 syncprov_op_search( Operation *op, SlapReply *rs )
2186 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2187 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2189 int gotstate = 0, changed = 0, do_present = 0;
2190 syncops *sop = NULL;
2194 int i, *sids, numcsns;
2195 struct berval mincsn;
2197 if ( !(op->o_sync_mode & SLAP_SYNC_REFRESH) ) return SLAP_CB_CONTINUE;
2199 if ( op->ors_deref & LDAP_DEREF_SEARCHING ) {
2200 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR, "illegal value for derefAliases" );
2204 srs = op->o_controls[slap_cids.sc_LDAPsync];
2206 /* If this is a persistent search, set it up right away */
2207 if ( op->o_sync_mode & SLAP_SYNC_PERSIST ) {
2217 so.s_flags = PS_IS_REFRESHING | PS_FIND_BASE;
2218 /* syncprov_findbase expects to be called as a callback... */
2219 sc.sc_private = &opc;
2221 ldap_pvt_thread_mutex_init( &so.s_mutex );
2222 cb = op->o_callback;
2223 op->o_callback = ≻
2224 rs->sr_err = syncprov_findbase( op, &fc );
2225 op->o_callback = cb;
2226 ldap_pvt_thread_mutex_destroy( &so.s_mutex );
2228 if ( rs->sr_err != LDAP_SUCCESS ) {
2229 send_ldap_result( op, rs );
2232 sop = ch_malloc( sizeof( syncops ));
2234 ldap_pvt_thread_mutex_init( &sop->s_mutex );
2235 sop->s_rid = srs->sr_state.rid;
2236 sop->s_sid = srs->sr_state.sid;
2239 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2240 sop->s_next = si->si_ops;
2242 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2245 /* snapshot the ctxcsn */
2246 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2247 numcsns = si->si_numcsns;
2249 ber_bvarray_dup_x( &ctxcsn, si->si_ctxcsn, op->o_tmpmemctx );
2250 sids = op->o_tmpalloc( numcsns * sizeof(int), op->o_tmpmemctx );
2251 for ( i=0; i<numcsns; i++ )
2252 sids[i] = si->si_sids[i];
2257 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2259 /* If we have a cookie, handle the PRESENT lookups */
2260 if ( srs->sr_state.ctxcsn ) {
2264 /* If we don't have any CSN of our own yet, pretend nothing
2270 if ( !si->si_nopres )
2271 do_present = SS_PRESENT;
2273 /* If there are SIDs we don't recognize in the cookie, drop them */
2274 for (i=0; i<srs->sr_state.numcsns; ) {
2275 for (j=0; j<numcsns; j++) {
2276 if ( srs->sr_state.sids[i] == sids[j] ) {
2281 if ( j == numcsns ) {
2282 struct berval tmp = srs->sr_state.ctxcsn[i];
2283 j = srs->sr_state.numcsns - 1;
2284 srs->sr_state.ctxcsn[i] = srs->sr_state.ctxcsn[j];
2286 srs->sr_state.ctxcsn[j] = tmp;
2287 srs->sr_state.numcsns = j;
2288 srs->sr_state.sids[i] = srs->sr_state.sids[j];
2294 /* Find the smallest CSN */
2295 mincsn = srs->sr_state.ctxcsn[0];
2296 for ( i=1; i<srs->sr_state.numcsns; i++ ) {
2297 if ( ber_bvcmp( &mincsn, &srs->sr_state.ctxcsn[i] ) > 0 )
2298 mincsn = srs->sr_state.ctxcsn[i];
2301 /* If nothing has changed, shortcut it */
2302 if ( srs->sr_state.numcsns == numcsns ) {
2304 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2305 for ( j=0; j<numcsns; j++ ) {
2306 if ( srs->sr_state.sids[i] != sids[j] )
2308 if ( !bvmatch( &srs->sr_state.ctxcsn[i], &ctxcsn[j] ))
2309 changed = SS_CHANGED;
2317 no_change: if ( !(op->o_sync_mode & SLAP_SYNC_PERSIST) ) {
2318 LDAPControl *ctrls[2];
2322 syncprov_done_ctrl( op, rs, ctrls, 0, 0,
2323 NULL, LDAP_SYNC_REFRESH_DELETES );
2324 rs->sr_ctrls = ctrls;
2325 rs->sr_err = LDAP_SUCCESS;
2326 send_ldap_result( op, rs );
2327 rs->sr_ctrls = NULL;
2333 /* consumer doesn't have the right number of CSNs */
2334 changed = SS_CHANGED;
2336 /* Do we have a sessionlog for this search? */
2339 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
2340 /* Are there any log entries, and is the consumer state
2341 * present in the session log?
2343 if ( sl->sl_num > 0 && ber_bvcmp( &mincsn, &sl->sl_mincsn ) >= 0 ) {
2345 /* mutex is unlocked in playlog */
2346 syncprov_playlog( op, rs, sl, srs, ctxcsn, numcsns, sids );
2348 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
2351 /* Is the CSN still present in the database? */
2352 if ( syncprov_findcsn( op, FIND_CSN ) != LDAP_SUCCESS ) {
2353 /* No, so a reload is required */
2354 /* the 2.2 consumer doesn't send this hint */
2355 if ( si->si_usehint && srs->sr_rhint == 0 ) {
2357 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2359 op->o_tmpfree( sids, op->o_tmpmemctx );
2360 send_ldap_error( op, rs, LDAP_SYNC_REFRESH_REQUIRED, "sync cookie is stale" );
2363 if ( srs->sr_state.ctxcsn ) {
2364 ber_bvarray_free_x( srs->sr_state.ctxcsn, op->o_tmpmemctx );
2365 srs->sr_state.ctxcsn = NULL;
2367 if ( srs->sr_state.sids ) {
2368 slap_sl_free( srs->sr_state.sids, op->o_tmpmemctx );
2369 srs->sr_state.sids = NULL;
2371 srs->sr_state.numcsns = 0;
2374 /* If changed and doing Present lookup, send Present UUIDs */
2375 if ( do_present && syncprov_findcsn( op, FIND_PRESENT ) !=
2378 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2380 op->o_tmpfree( sids, op->o_tmpmemctx );
2381 send_ldap_result( op, rs );
2386 /* No consumer state, assume something has changed */
2387 changed = SS_CHANGED;
2391 /* Append CSN range to search filter, save original filter
2392 * for persistent search evaluation
2395 sop->s_filterstr= op->ors_filterstr;
2398 /* If something changed, find the changes */
2399 if ( gotstate && changed ) {
2400 Filter *fand, *fava;
2402 fand = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2403 fand->f_choice = LDAP_FILTER_AND;
2404 fand->f_next = NULL;
2405 fava = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2407 fava->f_choice = LDAP_FILTER_GE;
2408 fava->f_ava = op->o_tmpalloc( sizeof(AttributeAssertion), op->o_tmpmemctx );
2409 fava->f_ava->aa_desc = slap_schema.si_ad_entryCSN;
2410 #ifdef LDAP_COMP_MATCH
2411 fava->f_ava->aa_cf = NULL;
2413 ber_dupbv_x( &fava->f_ava->aa_value, &mincsn, op->o_tmpmemctx );
2414 fava->f_next = op->ors_filter;
2415 op->ors_filter = fand;
2416 filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2418 sop->s_flags |= PS_FIX_FILTER;
2421 /* Let our callback add needed info to returned entries */
2422 cb = op->o_tmpcalloc(1, sizeof(slap_callback)+sizeof(searchstate), op->o_tmpmemctx);
2423 ss = (searchstate *)(cb+1);
2426 ss->ss_flags = do_present | changed;
2427 ss->ss_ctxcsn = ctxcsn;
2428 ss->ss_numcsns = numcsns;
2430 cb->sc_response = syncprov_search_response;
2431 cb->sc_cleanup = syncprov_search_cleanup;
2432 cb->sc_private = ss;
2433 cb->sc_next = op->o_callback;
2434 op->o_callback = cb;
2436 /* If this is a persistent search and no changes were reported during
2437 * the refresh phase, just invoke the response callback to transition
2438 * us into persist phase
2441 rs->sr_err = LDAP_SUCCESS;
2442 rs->sr_nentries = 0;
2443 send_ldap_result( op, rs );
2446 return SLAP_CB_CONTINUE;
2450 syncprov_operational(
2454 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2455 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2457 /* This prevents generating unnecessarily; frontend will strip
2458 * any statically stored copy.
2460 if ( op->o_sync != SLAP_CONTROL_NONE )
2461 return SLAP_CB_CONTINUE;
2463 if ( rs->sr_entry &&
2464 dn_match( &rs->sr_entry->e_nname, op->o_bd->be_nsuffix )) {
2466 if ( SLAP_OPATTRS( rs->sr_attr_flags ) ||
2467 ad_inlist( slap_schema.si_ad_contextCSN, rs->sr_attrs )) {
2468 Attribute *a, **ap = NULL;
2470 for ( a=rs->sr_entry->e_attrs; a; a=a->a_next ) {
2471 if ( a->a_desc == slap_schema.si_ad_contextCSN )
2475 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2476 if ( si->si_ctxcsn ) {
2478 for ( ap = &rs->sr_operational_attrs; *ap;
2479 ap=&(*ap)->a_next );
2481 a = attr_alloc( slap_schema.si_ad_contextCSN );
2486 if ( !(rs->sr_flags & REP_ENTRY_MODIFIABLE) ) {
2487 Entry *e = entry_dup( rs->sr_entry );
2488 if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
2489 overlay_entry_release_ov( op, rs->sr_entry, 0, on );
2490 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
2491 } else if ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) {
2492 entry_free( rs->sr_entry );
2496 REP_ENTRY_MODIFIABLE|REP_ENTRY_MUSTBEFREED;
2497 a = attr_find( rs->sr_entry->e_attrs,
2498 slap_schema.si_ad_contextCSN );
2500 if ( a->a_nvals != a->a_vals ) {
2501 ber_bvarray_free( a->a_nvals );
2504 ber_bvarray_free( a->a_vals );
2508 attr_valadd( a, si->si_ctxcsn, si->si_ctxcsn, si->si_numcsns );
2510 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2513 return SLAP_CB_CONTINUE;
2523 static ConfigDriver sp_cf_gen;
2525 static ConfigTable spcfg[] = {
2526 { "syncprov-checkpoint", "ops> <minutes", 3, 3, 0, ARG_MAGIC|SP_CHKPT,
2527 sp_cf_gen, "( OLcfgOvAt:1.1 NAME 'olcSpCheckpoint' "
2528 "DESC 'ContextCSN checkpoint interval in ops and minutes' "
2529 "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
2530 { "syncprov-sessionlog", "ops", 2, 2, 0, ARG_INT|ARG_MAGIC|SP_SESSL,
2531 sp_cf_gen, "( OLcfgOvAt:1.2 NAME 'olcSpSessionlog' "
2532 "DESC 'Session log size in ops' "
2533 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
2534 { "syncprov-nopresent", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_NOPRES,
2535 sp_cf_gen, "( OLcfgOvAt:1.3 NAME 'olcSpNoPresent' "
2536 "DESC 'Omit Present phase processing' "
2537 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2538 { "syncprov-reloadhint", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_USEHINT,
2539 sp_cf_gen, "( OLcfgOvAt:1.4 NAME 'olcSpReloadHint' "
2540 "DESC 'Observe Reload Hint in Request control' "
2541 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2542 { NULL, NULL, 0, 0, 0, ARG_IGNORED }
2545 static ConfigOCs spocs[] = {
2546 { "( OLcfgOvOc:1.1 "
2547 "NAME 'olcSyncProvConfig' "
2548 "DESC 'SyncRepl Provider configuration' "
2549 "SUP olcOverlayConfig "
2550 "MAY ( olcSpCheckpoint "
2551 "$ olcSpSessionlog "
2553 "$ olcSpReloadHint "
2555 Cft_Overlay, spcfg },
2560 sp_cf_gen(ConfigArgs *c)
2562 slap_overinst *on = (slap_overinst *)c->bi;
2563 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2566 if ( c->op == SLAP_CONFIG_EMIT ) {
2567 switch ( c->type ) {
2569 if ( si->si_chkops || si->si_chktime ) {
2571 bv.bv_len = snprintf( c->cr_msg, sizeof( c->cr_msg ),
2572 "%d %d", si->si_chkops, si->si_chktime );
2573 if ( bv.bv_len >= sizeof( c->cr_msg ) ) {
2576 bv.bv_val = c->cr_msg;
2577 value_add_one( &c->rvalue_vals, &bv );
2584 if ( si->si_logs ) {
2585 c->value_int = si->si_logs->sl_size;
2591 if ( si->si_nopres ) {
2598 if ( si->si_usehint ) {
2606 } else if ( c->op == LDAP_MOD_DELETE ) {
2607 switch ( c->type ) {
2614 si->si_logs->sl_size = 0;
2616 rc = LDAP_NO_SUCH_ATTRIBUTE;
2619 if ( si->si_nopres )
2622 rc = LDAP_NO_SUCH_ATTRIBUTE;
2625 if ( si->si_usehint )
2628 rc = LDAP_NO_SUCH_ATTRIBUTE;
2633 switch ( c->type ) {
2635 if ( lutil_atoi( &si->si_chkops, c->argv[1] ) != 0 ) {
2636 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint ops # \"%s\"",
2637 c->argv[0], c->argv[1] );
2638 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2639 "%s: %s\n", c->log, c->cr_msg, 0 );
2640 return ARG_BAD_CONF;
2642 if ( si->si_chkops <= 0 ) {
2643 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint ops # \"%d\"",
2644 c->argv[0], si->si_chkops );
2645 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2646 "%s: %s\n", c->log, c->cr_msg, 0 );
2647 return ARG_BAD_CONF;
2649 if ( lutil_atoi( &si->si_chktime, c->argv[2] ) != 0 ) {
2650 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint time \"%s\"",
2651 c->argv[0], c->argv[1] );
2652 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2653 "%s: %s\n", c->log, c->cr_msg, 0 );
2654 return ARG_BAD_CONF;
2656 if ( si->si_chktime <= 0 ) {
2657 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint time \"%d\"",
2658 c->argv[0], si->si_chkops );
2659 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2660 "%s: %s\n", c->log, c->cr_msg, 0 );
2661 return ARG_BAD_CONF;
2663 si->si_chktime *= 60;
2667 int size = c->value_int;
2670 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s size %d is negative",
2672 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2673 "%s: %s\n", c->log, c->cr_msg, 0 );
2674 return ARG_BAD_CONF;
2678 sl = ch_malloc( sizeof( sessionlog ) + LDAP_LUTIL_CSNSTR_BUFSIZE );
2679 sl->sl_mincsn.bv_val = (char *)(sl+1);
2680 sl->sl_mincsn.bv_len = 0;
2682 sl->sl_head = sl->sl_tail = NULL;
2683 ldap_pvt_thread_mutex_init( &sl->sl_mutex );
2690 si->si_nopres = c->value_int;
2693 si->si_usehint = c->value_int;
2699 /* ITS#3456 we cannot run this search on the main thread, must use a
2700 * child thread in order to insure we have a big enough stack.
2707 syncprov_findcsn( ptr, FIND_MAXCSN );
2711 /* Read any existing contextCSN from the underlying db.
2712 * Then search for any entries newer than that. If no value exists,
2713 * just generate it. Cache whatever result.
2721 slap_overinst *on = (slap_overinst *) be->bd_info;
2722 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2724 Connection conn = { 0 };
2725 OperationBuffer opbuf;
2730 void *thrctx = NULL;
2732 if ( !SLAP_LASTMOD( be )) {
2733 Debug( LDAP_DEBUG_ANY,
2734 "syncprov_db_open: invalid config, lastmod must be enabled\n", 0, 0, 0 );
2738 if ( slapMode & SLAP_TOOL_MODE ) {
2742 rc = overlay_register_control( be, LDAP_CONTROL_SYNC );
2747 thrctx = ldap_pvt_thread_pool_context();
2748 connection_fake_init( &conn, &opbuf, thrctx );
2751 op->o_dn = be->be_rootdn;
2752 op->o_ndn = be->be_rootndn;
2754 rc = overlay_entry_get_ov( op, be->be_nsuffix, NULL,
2755 slap_schema.si_ad_contextCSN, 0, &e, on );
2758 ldap_pvt_thread_t tid;
2760 a = attr_find( e->e_attrs, slap_schema.si_ad_contextCSN );
2762 ber_bvarray_dup_x( &si->si_ctxcsn, a->a_vals, NULL );
2763 si->si_numcsns = a->a_numvals;
2764 si->si_sids = slap_parse_csn_sids( si->si_ctxcsn, a->a_numvals, NULL );
2766 overlay_entry_release_ov( op, e, 0, on );
2767 if ( si->si_ctxcsn && !SLAP_DBCLEAN( be )) {
2768 op->o_req_dn = be->be_suffix[0];
2769 op->o_req_ndn = be->be_nsuffix[0];
2770 op->ors_scope = LDAP_SCOPE_SUBTREE;
2771 ldap_pvt_thread_create( &tid, 0, syncprov_db_otask, op );
2772 ldap_pvt_thread_join( tid, NULL );
2776 /* Didn't find a contextCSN, should we generate one? */
2777 if ( !si->si_ctxcsn ) {
2778 char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
2781 if ( SLAP_SYNC_SHADOW( op->o_bd )) {
2782 /* If we're also a consumer, then don't generate anything.
2783 * Wait for our provider to send it to us, or for a local
2784 * modify if we have multimaster.
2788 csn.bv_val = csnbuf;
2789 csn.bv_len = sizeof( csnbuf );
2790 slap_get_csn( op, &csn, 0 );
2791 value_add_one( &si->si_ctxcsn, &csn );
2793 si->si_sids = ch_malloc( sizeof(int) );
2794 si->si_sids[0] = slap_serverID;
2796 /* make sure we do a checkpoint on close */
2801 op->o_bd->bd_info = (BackendInfo *)on;
2805 /* Write the current contextCSN into the underlying db.
2813 slap_overinst *on = (slap_overinst *) be->bd_info;
2814 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2816 if ( slapMode & SLAP_TOOL_MODE ) {
2819 if ( si->si_numops ) {
2820 Connection conn = {0};
2821 OperationBuffer opbuf;
2823 SlapReply rs = {REP_RESULT};
2826 thrctx = ldap_pvt_thread_pool_context();
2827 connection_fake_init( &conn, &opbuf, thrctx );
2830 op->o_dn = be->be_rootdn;
2831 op->o_ndn = be->be_rootndn;
2832 syncprov_checkpoint( op, &rs, on );
2844 slap_overinst *on = (slap_overinst *)be->bd_info;
2845 syncprov_info_t *si;
2847 if ( SLAP_ISGLOBALOVERLAY( be ) ) {
2848 Debug( LDAP_DEBUG_ANY,
2849 "syncprov must be instantiated within a database.\n",
2854 si = ch_calloc(1, sizeof(syncprov_info_t));
2855 on->on_bi.bi_private = si;
2856 ldap_pvt_thread_rdwr_init( &si->si_csn_rwlock );
2857 ldap_pvt_thread_mutex_init( &si->si_ops_mutex );
2858 ldap_pvt_thread_mutex_init( &si->si_mods_mutex );
2860 csn_anlist[0].an_desc = slap_schema.si_ad_entryCSN;
2861 csn_anlist[0].an_name = slap_schema.si_ad_entryCSN->ad_cname;
2862 csn_anlist[1].an_desc = slap_schema.si_ad_entryUUID;
2863 csn_anlist[1].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2865 uuid_anlist[0].an_desc = slap_schema.si_ad_entryUUID;
2866 uuid_anlist[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2872 syncprov_db_destroy(
2877 slap_overinst *on = (slap_overinst *)be->bd_info;
2878 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2881 if ( si->si_logs ) {
2882 slog_entry *se = si->si_logs->sl_head;
2885 slog_entry *se_next = se->se_next;
2890 ch_free( si->si_logs );
2892 if ( si->si_ctxcsn )
2893 ber_bvarray_free( si->si_ctxcsn );
2895 ch_free( si->si_sids );
2896 ldap_pvt_thread_mutex_destroy( &si->si_mods_mutex );
2897 ldap_pvt_thread_mutex_destroy( &si->si_ops_mutex );
2898 ldap_pvt_thread_rdwr_destroy( &si->si_csn_rwlock );
2905 static int syncprov_parseCtrl (
2911 BerElementBuffer berbuf;
2912 BerElement *ber = (BerElement *)&berbuf;
2915 struct berval cookie = BER_BVNULL;
2919 if ( op->o_sync != SLAP_CONTROL_NONE ) {
2920 rs->sr_text = "Sync control specified multiple times";
2921 return LDAP_PROTOCOL_ERROR;
2924 if ( op->o_pagedresults != SLAP_CONTROL_NONE ) {
2925 rs->sr_text = "Sync control specified with pagedResults control";
2926 return LDAP_PROTOCOL_ERROR;
2929 if ( BER_BVISNULL( &ctrl->ldctl_value ) ) {
2930 rs->sr_text = "Sync control value is absent";
2931 return LDAP_PROTOCOL_ERROR;
2934 if ( BER_BVISEMPTY( &ctrl->ldctl_value ) ) {
2935 rs->sr_text = "Sync control value is empty";
2936 return LDAP_PROTOCOL_ERROR;
2939 /* Parse the control value
2940 * syncRequestValue ::= SEQUENCE {
2945 * refreshAndPersist (3)
2947 * cookie syncCookie OPTIONAL
2951 ber_init2( ber, &ctrl->ldctl_value, 0 );
2953 if ( (tag = ber_scanf( ber, "{i" /*}*/, &mode )) == LBER_ERROR ) {
2954 rs->sr_text = "Sync control : mode decoding error";
2955 return LDAP_PROTOCOL_ERROR;
2959 case LDAP_SYNC_REFRESH_ONLY:
2960 mode = SLAP_SYNC_REFRESH;
2962 case LDAP_SYNC_REFRESH_AND_PERSIST:
2963 mode = SLAP_SYNC_REFRESH_AND_PERSIST;
2966 rs->sr_text = "Sync control : unknown update mode";
2967 return LDAP_PROTOCOL_ERROR;
2970 tag = ber_peek_tag( ber, &len );
2972 if ( tag == LDAP_TAG_SYNC_COOKIE ) {
2973 if (( ber_scanf( ber, /*{*/ "m", &cookie )) == LBER_ERROR ) {
2974 rs->sr_text = "Sync control : cookie decoding error";
2975 return LDAP_PROTOCOL_ERROR;
2977 tag = ber_peek_tag( ber, &len );
2979 if ( tag == LDAP_TAG_RELOAD_HINT ) {
2980 if (( ber_scanf( ber, /*{*/ "b", &rhint )) == LBER_ERROR ) {
2981 rs->sr_text = "Sync control : rhint decoding error";
2982 return LDAP_PROTOCOL_ERROR;
2985 if (( ber_scanf( ber, /*{*/ "}")) == LBER_ERROR ) {
2986 rs->sr_text = "Sync control : decoding error";
2987 return LDAP_PROTOCOL_ERROR;
2989 sr = op->o_tmpcalloc( 1, sizeof(struct sync_control), op->o_tmpmemctx );
2990 sr->sr_rhint = rhint;
2991 if (!BER_BVISNULL(&cookie)) {
2992 ber_dupbv_x( &sr->sr_state.octet_str, &cookie, op->o_tmpmemctx );
2993 /* If parse fails, pretend no cookie was sent */
2994 if ( slap_parse_sync_cookie( &sr->sr_state, op->o_tmpmemctx ) ||
2995 sr->sr_state.rid == -1 ) {
2996 if ( sr->sr_state.ctxcsn ) {
2997 ber_bvarray_free_x( sr->sr_state.ctxcsn, op->o_tmpmemctx );
2998 sr->sr_state.ctxcsn = NULL;
3000 sr->sr_state.numcsns = 0;
3004 op->o_controls[slap_cids.sc_LDAPsync] = sr;
3006 op->o_sync = ctrl->ldctl_iscritical
3007 ? SLAP_CONTROL_CRITICAL
3008 : SLAP_CONTROL_NONCRITICAL;
3010 op->o_sync_mode |= mode; /* o_sync_mode shares o_sync */
3012 return LDAP_SUCCESS;
3015 /* This overlay is set up for dynamic loading via moduleload. For static
3016 * configuration, you'll need to arrange for the slap_overinst to be
3017 * initialized and registered by some other function inside slapd.
3020 static slap_overinst syncprov;
3023 syncprov_initialize()
3027 rc = register_supported_control( LDAP_CONTROL_SYNC,
3028 SLAP_CTRL_SEARCH, NULL,
3029 syncprov_parseCtrl, &slap_cids.sc_LDAPsync );
3030 if ( rc != LDAP_SUCCESS ) {
3031 Debug( LDAP_DEBUG_ANY,
3032 "syncprov_init: Failed to register control %d\n", rc, 0, 0 );
3036 syncprov.on_bi.bi_type = "syncprov";
3037 syncprov.on_bi.bi_db_init = syncprov_db_init;
3038 syncprov.on_bi.bi_db_destroy = syncprov_db_destroy;
3039 syncprov.on_bi.bi_db_open = syncprov_db_open;
3040 syncprov.on_bi.bi_db_close = syncprov_db_close;
3042 syncprov.on_bi.bi_op_abandon = syncprov_op_abandon;
3043 syncprov.on_bi.bi_op_cancel = syncprov_op_abandon;
3045 syncprov.on_bi.bi_op_add = syncprov_op_mod;
3046 syncprov.on_bi.bi_op_compare = syncprov_op_compare;
3047 syncprov.on_bi.bi_op_delete = syncprov_op_mod;
3048 syncprov.on_bi.bi_op_modify = syncprov_op_mod;
3049 syncprov.on_bi.bi_op_modrdn = syncprov_op_mod;
3050 syncprov.on_bi.bi_op_search = syncprov_op_search;
3051 syncprov.on_bi.bi_extended = syncprov_op_extended;
3052 syncprov.on_bi.bi_operational = syncprov_operational;
3054 syncprov.on_bi.bi_cf_ocs = spocs;
3056 generic_filter.f_desc = slap_schema.si_ad_objectClass;
3058 rc = config_register_schema( spcfg, spocs );
3059 if ( rc ) return rc;
3061 return overlay_register( &syncprov );
3064 #if SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC
3066 init_module( int argc, char *argv[] )
3068 return syncprov_initialize();
3070 #endif /* SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC */
3072 #endif /* defined(SLAPD_OVER_SYNCPROV) */