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>
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 && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
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 && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
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 );
1262 if ( !saveit && found ) {
1263 /* Decrement s_inuse, was incremented when called
1264 * with saveit == TRUE
1266 syncprov_free_syncop( ss );
1269 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1271 if ( op->o_tag != LDAP_REQ_ADD && e ) {
1272 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1275 overlay_entry_release_ov( op, e, 0, on );
1279 op->o_tmpfree( fc.fdn->bv_val, op->o_tmpmemctx );
1285 syncprov_op_cleanup( Operation *op, SlapReply *rs )
1287 slap_callback *cb = op->o_callback;
1288 opcookie *opc = cb->sc_private;
1289 slap_overinst *on = opc->son;
1290 syncprov_info_t *si = on->on_bi.bi_private;
1291 syncmatches *sm, *snext;
1292 modtarget *mt, mtdummy;
1294 for (sm = opc->smatches; sm; sm=snext) {
1295 snext = sm->sm_next;
1296 syncprov_free_syncop( sm->sm_op );
1297 op->o_tmpfree( sm, op->o_tmpmemctx );
1300 /* Remove op from lock table */
1302 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1303 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
1305 modinst *mi = mt->mt_mods;
1307 /* If there are more, promote the next one */
1308 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1309 if ( mi->mi_next ) {
1310 mt->mt_mods = mi->mi_next;
1311 mt->mt_op = mt->mt_mods->mi_op;
1312 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1314 avl_delete( &si->si_mods, mt, sp_avl_cmp );
1315 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1316 ldap_pvt_thread_mutex_destroy( &mt->mt_mutex );
1320 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1321 if ( !BER_BVISNULL( &opc->suuid ))
1322 op->o_tmpfree( opc->suuid.bv_val, op->o_tmpmemctx );
1323 if ( !BER_BVISNULL( &opc->sndn ))
1324 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1325 if ( !BER_BVISNULL( &opc->sdn ))
1326 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1327 op->o_callback = cb->sc_next;
1328 op->o_tmpfree(cb, op->o_tmpmemctx);
1334 syncprov_checkpoint( Operation *op, SlapReply *rs, slap_overinst *on )
1336 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
1339 SlapReply rsm = { 0 };
1340 slap_callback cb = {0};
1343 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1346 for ( i=0; i<si->si_numcsns; i++ ) {
1347 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1350 mod.sml_numvals = si->si_numcsns;
1351 mod.sml_values = si->si_ctxcsn;
1352 mod.sml_nvalues = NULL;
1353 mod.sml_desc = slap_schema.si_ad_contextCSN;
1354 mod.sml_op = LDAP_MOD_REPLACE;
1355 mod.sml_flags = SLAP_MOD_INTERNAL;
1356 mod.sml_next = NULL;
1358 cb.sc_response = slap_null_cb;
1360 opm.o_tag = LDAP_REQ_MODIFY;
1361 opm.o_callback = &cb;
1362 opm.orm_modlist = &mod;
1363 opm.orm_no_opattrs = 1;
1364 if ( SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1365 be = *on->on_info->oi_origdb;
1368 opm.o_req_dn = opm.o_bd->be_suffix[0];
1369 opm.o_req_ndn = opm.o_bd->be_nsuffix[0];
1370 opm.o_bd->bd_info = on->on_info->oi_orig;
1371 opm.o_managedsait = SLAP_CONTROL_NONCRITICAL;
1372 opm.o_no_schema_check = 1;
1373 opm.o_bd->be_modify( &opm, &rsm );
1374 if ( mod.sml_next != NULL ) {
1375 slap_mods_free( mod.sml_next, 1 );
1378 for ( i=0; i<si->si_numcsns; i++ ) {
1379 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1385 syncprov_add_slog( Operation *op )
1387 opcookie *opc = op->o_callback->sc_private;
1388 slap_overinst *on = opc->son;
1389 syncprov_info_t *si = on->on_bi.bi_private;
1395 /* Allocate a record. UUIDs are not NUL-terminated. */
1396 se = ch_malloc( sizeof( slog_entry ) + opc->suuid.bv_len +
1397 op->o_csn.bv_len + 1 );
1399 se->se_tag = op->o_tag;
1401 se->se_uuid.bv_val = (char *)(&se[1]);
1402 AC_MEMCPY( se->se_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1403 se->se_uuid.bv_len = opc->suuid.bv_len;
1405 se->se_csn.bv_val = se->se_uuid.bv_val + opc->suuid.bv_len;
1406 AC_MEMCPY( se->se_csn.bv_val, op->o_csn.bv_val, op->o_csn.bv_len );
1407 se->se_csn.bv_val[op->o_csn.bv_len] = '\0';
1408 se->se_csn.bv_len = op->o_csn.bv_len;
1409 se->se_sid = slap_parse_csn_sid( &se->se_csn );
1411 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1412 if ( sl->sl_head ) {
1413 sl->sl_tail->se_next = se;
1419 while ( sl->sl_num > sl->sl_size ) {
1421 sl->sl_head = se->se_next;
1422 strcpy( sl->sl_mincsn.bv_val, se->se_csn.bv_val );
1423 sl->sl_mincsn.bv_len = se->se_csn.bv_len;
1427 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1431 /* Just set a flag if we found the matching entry */
1433 playlog_cb( Operation *op, SlapReply *rs )
1435 if ( rs->sr_type == REP_SEARCH ) {
1436 op->o_callback->sc_private = (void *)1;
1441 /* enter with sl->sl_mutex locked, release before returning */
1443 syncprov_playlog( Operation *op, SlapReply *rs, sessionlog *sl,
1444 sync_control *srs, BerVarray ctxcsn, int numcsns, int *sids )
1446 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1448 int i, j, ndel, num, nmods, mmods;
1449 char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
1451 struct berval delcsn[2];
1453 if ( !sl->sl_num ) {
1454 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1462 uuids = op->o_tmpalloc( (num+1) * sizeof( struct berval ) +
1463 num * UUID_LEN, op->o_tmpmemctx );
1464 uuids[0].bv_val = (char *)(uuids + num + 1);
1466 delcsn[0].bv_len = 0;
1467 delcsn[0].bv_val = cbuf;
1468 BER_BVZERO(&delcsn[1]);
1470 /* Make a copy of the relevant UUIDs. Put the Deletes up front
1471 * and everything else at the end. Do this first so we can
1472 * unlock the list mutex.
1474 Debug( LDAP_DEBUG_SYNC, "srs csn %s\n",
1475 srs->sr_state.ctxcsn[0].bv_val, 0, 0 );
1476 for ( se=sl->sl_head; se; se=se->se_next ) {
1478 Debug( LDAP_DEBUG_SYNC, "log csn %s\n", se->se_csn.bv_val, 0, 0 );
1480 for ( k=0; k<srs->sr_state.numcsns; k++ ) {
1481 if ( se->se_sid == srs->sr_state.sids[k] ) {
1482 ndel = ber_bvcmp( &se->se_csn, &srs->sr_state.ctxcsn[k] );
1487 Debug( LDAP_DEBUG_SYNC, "cmp %d, too old\n", ndel, 0, 0 );
1491 for ( k=0; k<numcsns; k++ ) {
1492 if ( se->se_sid == sids[k] ) {
1493 ndel = ber_bvcmp( &se->se_csn, &ctxcsn[k] );
1498 Debug( LDAP_DEBUG_SYNC, "cmp %d, too new\n", ndel, 0, 0 );
1501 if ( se->se_tag == LDAP_REQ_DELETE ) {
1504 AC_MEMCPY( cbuf, se->se_csn.bv_val, se->se_csn.bv_len );
1505 delcsn[0].bv_len = se->se_csn.bv_len;
1506 delcsn[0].bv_val[delcsn[0].bv_len] = '\0';
1511 uuids[j].bv_val = uuids[0].bv_val + (j * UUID_LEN);
1512 AC_MEMCPY(uuids[j].bv_val, se->se_uuid.bv_val, UUID_LEN);
1513 uuids[j].bv_len = UUID_LEN;
1515 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1519 /* Zero out unused slots */
1520 for ( i=ndel; i < num - nmods; i++ )
1521 uuids[i].bv_len = 0;
1523 /* Mods must be validated to see if they belong in this delete set.
1527 /* Strip any duplicates */
1528 for ( i=0; i<nmods; i++ ) {
1529 for ( j=0; j<ndel; j++ ) {
1530 if ( bvmatch( &uuids[j], &uuids[num - 1 - i] )) {
1531 uuids[num - 1 - i].bv_len = 0;
1536 if ( uuids[num - 1 - i].bv_len == 0 ) continue;
1537 for ( j=0; j<i; j++ ) {
1538 if ( bvmatch( &uuids[num - 1 - j], &uuids[num - 1 - i] )) {
1539 uuids[num - 1 - i].bv_len = 0;
1548 SlapReply frs = { REP_RESULT };
1551 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
1552 slap_callback cb = {0};
1556 fop.o_sync_mode = 0;
1557 fop.o_callback = &cb;
1558 fop.ors_limit = NULL;
1559 fop.ors_tlimit = SLAP_NO_LIMIT;
1560 fop.ors_attrs = slap_anlist_all_attributes;
1561 fop.ors_attrsonly = 0;
1562 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
1564 af.f_choice = LDAP_FILTER_AND;
1567 mf.f_choice = LDAP_FILTER_EQUALITY;
1569 mf.f_av_desc = slap_schema.si_ad_entryUUID;
1570 mf.f_next = fop.ors_filter;
1572 fop.ors_filter = ⁡
1574 cb.sc_response = playlog_cb;
1575 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
1577 for ( i=ndel; i<num; i++ ) {
1578 if ( uuids[i].bv_len == 0 ) continue;
1580 mf.f_av_value = uuids[i];
1581 cb.sc_private = NULL;
1583 frs.sr_nentries = 0;
1584 rc = fop.o_bd->be_search( &fop, &frs );
1586 /* If entry was not found, add to delete list */
1587 if ( !cb.sc_private ) {
1588 uuids[ndel++] = uuids[i];
1591 fop.o_bd->bd_info = (BackendInfo *)on;
1594 struct berval cookie;
1596 if ( delcsn[0].bv_len ) {
1597 slap_compose_sync_cookie( op, &cookie, delcsn, srs->sr_state.rid,
1598 srs->sr_state.sid );
1600 Debug( LDAP_DEBUG_SYNC, "syncprov_playlog: cookie=%s\n", cookie.bv_val, 0, 0 );
1603 uuids[ndel].bv_val = NULL;
1604 syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET,
1605 delcsn[0].bv_len ? &cookie : NULL, 0, uuids, 1 );
1606 if ( delcsn[0].bv_len ) {
1607 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
1610 op->o_tmpfree( uuids, op->o_tmpmemctx );
1614 syncprov_op_response( Operation *op, SlapReply *rs )
1616 opcookie *opc = op->o_callback->sc_private;
1617 slap_overinst *on = opc->son;
1618 syncprov_info_t *si = on->on_bi.bi_private;
1621 if ( rs->sr_err == LDAP_SUCCESS )
1623 struct berval maxcsn = BER_BVNULL;
1624 char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
1625 int do_check = 0, have_psearches, foundit;
1627 /* Update our context CSN */
1629 ldap_pvt_thread_rdwr_wlock( &si->si_csn_rwlock );
1630 slap_get_commit_csn( op, &maxcsn, &foundit );
1631 if ( BER_BVISNULL( &maxcsn ) && SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1632 /* syncrepl queues the CSN values in the db where
1633 * it is configured , not where the changes are made.
1634 * So look for a value in the glue db if we didn't
1635 * find any in this db.
1637 BackendDB *be = op->o_bd;
1638 op->o_bd = select_backend( &be->be_nsuffix[0], 1);
1639 slap_get_commit_csn( op, &maxcsn, &foundit );
1642 if ( !BER_BVISNULL( &maxcsn ) ) {
1644 strcpy( cbuf, maxcsn.bv_val );
1645 sid = slap_parse_csn_sid( &maxcsn );
1646 for ( i=0; i<si->si_numcsns; i++ ) {
1647 if ( sid == si->si_sids[i] ) {
1648 if ( ber_bvcmp( &maxcsn, &si->si_ctxcsn[i] ) > 0 ) {
1649 ber_bvreplace( &si->si_ctxcsn[i], &maxcsn );
1654 /* It's a new SID for us */
1655 if ( i == si->si_numcsns ) {
1656 value_add_one( &si->si_ctxcsn, &maxcsn );
1658 si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
1660 si->si_sids[i] = sid;
1662 } else if ( !foundit ) {
1663 /* internal ops that aren't meant to be replicated */
1664 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1665 return SLAP_CB_CONTINUE;
1668 /* Don't do any processing for consumer contextCSN updates */
1669 if ( op->o_dont_replicate ) {
1670 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1671 return SLAP_CB_CONTINUE;
1675 if ( si->si_chkops || si->si_chktime ) {
1676 if ( si->si_chkops && si->si_numops >= si->si_chkops ) {
1680 if ( si->si_chktime &&
1681 (op->o_time - si->si_chklast >= si->si_chktime )) {
1682 if ( si->si_chklast ) {
1684 si->si_chklast = op->o_time;
1690 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1693 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1694 syncprov_checkpoint( op, rs, on );
1695 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1698 /* only update consumer ctx if this is the greatest csn */
1699 if ( bvmatch( &maxcsn, &op->o_csn )) {
1700 opc->sctxcsn.bv_len = maxcsn.bv_len;
1701 opc->sctxcsn.bv_val = cbuf;
1704 /* Handle any persistent searches */
1705 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1706 have_psearches = ( si->si_ops != NULL );
1707 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1708 if ( have_psearches ) {
1711 case LDAP_REQ_MODIFY:
1712 case LDAP_REQ_MODRDN:
1713 case LDAP_REQ_EXTENDED:
1714 syncprov_matchops( op, opc, 0 );
1716 case LDAP_REQ_DELETE:
1717 /* for each match in opc->smatches:
1720 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1721 if ( sm->sm_op->s_op->o_abandon )
1723 syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_DELETE );
1729 /* Add any log records */
1730 if ( si->si_logs && op->o_tag != LDAP_REQ_ADD ) {
1731 syncprov_add_slog( op );
1735 return SLAP_CB_CONTINUE;
1738 /* We don't use a subentry to store the context CSN any more.
1739 * We expose the current context CSN as an operational attribute
1740 * of the suffix entry.
1743 syncprov_op_compare( Operation *op, SlapReply *rs )
1745 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1746 syncprov_info_t *si = on->on_bi.bi_private;
1747 int rc = SLAP_CB_CONTINUE;
1749 if ( dn_match( &op->o_req_ndn, op->o_bd->be_nsuffix ) &&
1750 op->oq_compare.rs_ava->aa_desc == slap_schema.si_ad_contextCSN )
1755 e.e_name = op->o_bd->be_suffix[0];
1756 e.e_nname = op->o_bd->be_nsuffix[0];
1759 a.a_desc = slap_schema.si_ad_contextCSN;
1761 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1763 a.a_vals = si->si_ctxcsn;
1764 a.a_nvals = a.a_vals;
1766 rs->sr_err = access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc,
1767 &op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL );
1768 if ( ! rs->sr_err ) {
1769 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1770 goto return_results;
1773 if ( get_assert( op ) &&
1774 ( test_filter( op, &e, get_assertion( op ) ) != LDAP_COMPARE_TRUE ) )
1776 rs->sr_err = LDAP_ASSERTION_FAILED;
1777 goto return_results;
1781 rs->sr_err = LDAP_COMPARE_FALSE;
1783 if ( attr_valfind( &a,
1784 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
1785 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
1786 &op->oq_compare.rs_ava->aa_value, NULL, op->o_tmpmemctx ) == 0 )
1788 rs->sr_err = LDAP_COMPARE_TRUE;
1793 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1795 send_ldap_result( op, rs );
1797 if( rs->sr_err == LDAP_COMPARE_FALSE || rs->sr_err == LDAP_COMPARE_TRUE ) {
1798 rs->sr_err = LDAP_SUCCESS;
1807 syncprov_op_mod( Operation *op, SlapReply *rs )
1809 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1810 syncprov_info_t *si = on->on_bi.bi_private;
1813 int have_psearches, cbsize;
1815 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1816 have_psearches = ( si->si_ops != NULL );
1817 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1819 cbsize = sizeof(slap_callback) + sizeof(opcookie) +
1820 (have_psearches ? sizeof(modinst) : 0 );
1822 cb = op->o_tmpcalloc(1, cbsize, op->o_tmpmemctx);
1823 opc = (opcookie *)(cb+1);
1825 cb->sc_response = syncprov_op_response;
1826 cb->sc_cleanup = syncprov_op_cleanup;
1827 cb->sc_private = opc;
1828 cb->sc_next = op->o_callback;
1829 op->o_callback = cb;
1831 /* If there are active persistent searches, lock this operation.
1832 * See seqmod.c for the locking logic on its own.
1834 if ( have_psearches ) {
1835 modtarget *mt, mtdummy;
1838 mi = (modinst *)(opc+1);
1841 /* See if we're already modifying this entry... */
1843 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1844 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
1846 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1847 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1848 mt->mt_tail->mi_next = mi;
1850 /* wait for this op to get to head of list */
1851 while ( mt->mt_mods != mi ) {
1852 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1853 /* FIXME: if dynamic config can delete overlays or
1854 * databases we'll have to check for cleanup here.
1855 * Currently it's not an issue because there are
1856 * no dynamic config deletes...
1858 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
1859 ldap_pvt_thread_yield();
1860 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1862 /* clean up if the caller is giving up */
1863 if ( op->o_abandon ) {
1865 for ( m2 = mt->mt_mods; m2->mi_next != mi;
1867 m2->mi_next = mi->mi_next;
1868 if ( mt->mt_tail == mi ) mt->mt_tail = m2;
1869 op->o_tmpfree( cb, op->o_tmpmemctx );
1870 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1871 return SLAPD_ABANDON;
1874 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1876 /* Record that we're modifying this entry now */
1877 mt = ch_malloc( sizeof(modtarget) );
1880 mt->mt_op = mi->mi_op;
1881 ldap_pvt_thread_mutex_init( &mt->mt_mutex );
1882 avl_insert( &si->si_mods, mt, sp_avl_cmp, avl_dup_error );
1883 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1887 if (( have_psearches || si->si_logs ) && op->o_tag != LDAP_REQ_ADD )
1888 syncprov_matchops( op, opc, 1 );
1890 return SLAP_CB_CONTINUE;
1894 syncprov_op_extended( Operation *op, SlapReply *rs )
1896 if ( exop_is_write( op ))
1897 return syncprov_op_mod( op, rs );
1899 return SLAP_CB_CONTINUE;
1902 typedef struct searchstate {
1903 slap_overinst *ss_on;
1905 BerVarray ss_ctxcsn;
1908 #define SS_PRESENT 0x01
1909 #define SS_CHANGED 0x02
1914 syncprov_search_cleanup( Operation *op, SlapReply *rs )
1916 if ( rs->sr_ctrls ) {
1917 op->o_tmpfree( rs->sr_ctrls[0], op->o_tmpmemctx );
1918 op->o_tmpfree( rs->sr_ctrls, op->o_tmpmemctx );
1919 rs->sr_ctrls = NULL;
1924 typedef struct SyncOperationBuffer {
1928 AttributeName sob_extra; /* not always present */
1929 /* Further data allocated here */
1930 } SyncOperationBuffer;
1933 syncprov_detach_op( Operation *op, syncops *so, slap_overinst *on )
1935 SyncOperationBuffer *sopbuf2;
1940 GroupAssertion *g1, *g2;
1942 /* count the search attrs */
1943 for (i=0; op->ors_attrs && !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
1944 alen += op->ors_attrs[i].an_name.bv_len + 1;
1946 /* Make a new copy of the operation */
1947 size = offsetof( SyncOperationBuffer, sob_extra ) +
1948 (i ? ( (i+1) * sizeof(AttributeName) + alen) : 0) +
1949 op->o_req_dn.bv_len + 1 +
1950 op->o_req_ndn.bv_len + 1 +
1951 op->o_ndn.bv_len + 1 +
1952 so->s_filterstr.bv_len + 1;
1953 sopbuf2 = ch_calloc( 1, size );
1954 op2 = &sopbuf2->sob_op;
1955 op2->o_hdr = &sopbuf2->sob_hdr;
1956 LDAP_SLIST_FIRST(&op2->o_extra) = &sopbuf2->sob_oe;
1958 /* Copy the fields we care about explicitly, leave the rest alone */
1959 *op2->o_hdr = *op->o_hdr;
1960 op2->o_tag = op->o_tag;
1961 op2->o_time = op->o_time;
1962 op2->o_bd = on->on_info->oi_origdb;
1963 op2->o_request = op->o_request;
1964 op2->o_managedsait = op->o_managedsait;
1965 LDAP_SLIST_FIRST(&op2->o_extra)->oe_key = on;
1966 LDAP_SLIST_NEXT(LDAP_SLIST_FIRST(&op2->o_extra), oe_next) = NULL;
1968 ptr = (char *) sopbuf2 + offsetof( SyncOperationBuffer, sob_extra );
1970 op2->ors_attrs = (AttributeName *) ptr;
1971 ptr = (char *) &op2->ors_attrs[i+1];
1972 for (i=0; !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
1973 op2->ors_attrs[i] = op->ors_attrs[i];
1974 op2->ors_attrs[i].an_name.bv_val = ptr;
1975 ptr = lutil_strcopy( ptr, op->ors_attrs[i].an_name.bv_val ) + 1;
1977 BER_BVZERO( &op2->ors_attrs[i].an_name );
1980 op2->o_authz = op->o_authz;
1981 op2->o_ndn.bv_val = ptr;
1982 ptr = lutil_strcopy(ptr, op->o_ndn.bv_val) + 1;
1983 op2->o_dn = op2->o_ndn;
1984 op2->o_req_dn.bv_len = op->o_req_dn.bv_len;
1985 op2->o_req_dn.bv_val = ptr;
1986 ptr = lutil_strcopy(ptr, op->o_req_dn.bv_val) + 1;
1987 op2->o_req_ndn.bv_len = op->o_req_ndn.bv_len;
1988 op2->o_req_ndn.bv_val = ptr;
1989 ptr = lutil_strcopy(ptr, op->o_req_ndn.bv_val) + 1;
1990 op2->ors_filterstr.bv_val = ptr;
1991 strcpy( ptr, so->s_filterstr.bv_val );
1992 op2->ors_filterstr.bv_len = so->s_filterstr.bv_len;
1994 /* Skip the AND/GE clause that we stuck on in front */
1995 if ( so->s_flags & PS_FIX_FILTER ) {
1996 op2->ors_filter = op->ors_filter->f_and->f_next;
1997 so->s_flags ^= PS_FIX_FILTER;
1999 op2->ors_filter = op->ors_filter;
2001 op2->ors_filter = filter_dup( op2->ors_filter, NULL );
2004 /* Copy any cached group ACLs individually */
2005 op2->o_groups = NULL;
2006 for ( g1=op->o_groups; g1; g1=g1->ga_next ) {
2007 g2 = ch_malloc( sizeof(GroupAssertion) + g1->ga_len );
2009 strcpy( g2->ga_ndn, g1->ga_ndn );
2010 g2->ga_next = op2->o_groups;
2013 /* Don't allow any further group caching */
2014 op2->o_do_not_cache = 1;
2016 /* Add op2 to conn so abandon will find us */
2017 op->o_conn->c_n_ops_executing++;
2018 op->o_conn->c_n_ops_completed--;
2019 LDAP_STAILQ_INSERT_TAIL( &op->o_conn->c_ops, op2, o_next );
2020 so->s_flags |= PS_IS_DETACHED;
2022 /* Prevent anyone else from trying to send a result for this op */
2027 syncprov_search_response( Operation *op, SlapReply *rs )
2029 searchstate *ss = op->o_callback->sc_private;
2030 slap_overinst *on = ss->ss_on;
2031 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2032 sync_control *srs = op->o_controls[slap_cids.sc_LDAPsync];
2034 if ( rs->sr_type == REP_SEARCH || rs->sr_type == REP_SEARCHREF ) {
2036 /* If we got a referral without a referral object, there's
2037 * something missing that we cannot replicate. Just ignore it.
2038 * The consumer will abort because we didn't send the expected
2041 if ( !rs->sr_entry ) {
2042 assert( rs->sr_entry != NULL );
2043 Debug( LDAP_DEBUG_ANY, "bogus referral in context\n",0,0,0 );
2044 return SLAP_CB_CONTINUE;
2046 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryCSN );
2047 if ( a == NULL && rs->sr_operational_attrs != NULL ) {
2048 a = attr_find( rs->sr_operational_attrs, slap_schema.si_ad_entryCSN );
2052 sid = slap_parse_csn_sid( &a->a_nvals[0] );
2054 /* Don't send changed entries back to the originator */
2055 if ( sid == srs->sr_state.sid && srs->sr_state.numcsns ) {
2056 Debug( LDAP_DEBUG_SYNC,
2057 "Entry %s changed by peer, ignored\n",
2058 rs->sr_entry->e_name.bv_val, 0, 0 );
2059 return LDAP_SUCCESS;
2062 /* If not a persistent search */
2064 /* Make sure entry is less than the snapshot'd contextCSN */
2065 for ( i=0; i<ss->ss_numcsns; i++ ) {
2066 if ( sid == ss->ss_sids[i] && ber_bvcmp( &a->a_nvals[0],
2067 &ss->ss_ctxcsn[i] ) > 0 ) {
2068 Debug( LDAP_DEBUG_SYNC,
2069 "Entry %s CSN %s greater than snapshot %s\n",
2070 rs->sr_entry->e_name.bv_val,
2071 a->a_nvals[0].bv_val,
2072 ss->ss_ctxcsn[i].bv_val );
2073 return LDAP_SUCCESS;
2078 /* Don't send old entries twice */
2079 if ( srs->sr_state.ctxcsn ) {
2080 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2081 if ( sid == srs->sr_state.sids[i] &&
2082 ber_bvcmp( &a->a_nvals[0],
2083 &srs->sr_state.ctxcsn[i] )<= 0 ) {
2084 Debug( LDAP_DEBUG_SYNC,
2085 "Entry %s CSN %s older or equal to ctx %s\n",
2086 rs->sr_entry->e_name.bv_val,
2087 a->a_nvals[0].bv_val,
2088 srs->sr_state.ctxcsn[i].bv_val );
2089 return LDAP_SUCCESS;
2094 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2096 rs->sr_ctrls[1] = NULL;
2097 /* If we're in delta-sync mode, always send a cookie */
2098 if ( si->si_nopres && si->si_usehint && a ) {
2099 struct berval cookie;
2100 slap_compose_sync_cookie( op, &cookie, a->a_nvals, srs->sr_state.rid, srs->sr_state.sid );
2101 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2102 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 1, &cookie );
2104 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2105 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 0, NULL );
2107 } else if ( rs->sr_type == REP_RESULT && rs->sr_err == LDAP_SUCCESS ) {
2108 struct berval cookie;
2110 if ( ss->ss_flags & SS_CHANGED ) {
2111 slap_compose_sync_cookie( op, &cookie, ss->ss_ctxcsn,
2112 srs->sr_state.rid, srs->sr_state.sid );
2114 Debug( LDAP_DEBUG_SYNC, "syncprov_search_response: cookie=%s\n", cookie.bv_val, 0, 0 );
2117 /* Is this a regular refresh?
2118 * Note: refresh never gets here if there were no changes
2121 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2123 rs->sr_ctrls[1] = NULL;
2124 rs->sr_err = syncprov_done_ctrl( op, rs, rs->sr_ctrls,
2125 0, 1, &cookie, ( ss->ss_flags & SS_PRESENT ) ? LDAP_SYNC_REFRESH_PRESENTS :
2126 LDAP_SYNC_REFRESH_DELETES );
2127 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2129 /* It's RefreshAndPersist, transition to Persist phase */
2130 syncprov_sendinfo( op, rs, ( ss->ss_flags & SS_PRESENT ) ?
2131 LDAP_TAG_SYNC_REFRESH_PRESENT : LDAP_TAG_SYNC_REFRESH_DELETE,
2132 ( ss->ss_flags & SS_CHANGED ) ? &cookie : NULL,
2134 if ( ss->ss_flags & SS_CHANGED )
2135 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2137 /* Detach this Op from frontend control */
2138 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
2140 /* But not if this connection was closed along the way */
2141 if ( op->o_abandon ) {
2142 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2143 /* syncprov_ab_cleanup will free this syncop */
2144 return SLAPD_ABANDON;
2147 ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex );
2148 /* Turn off the refreshing flag */
2149 ss->ss_so->s_flags ^= PS_IS_REFRESHING;
2151 syncprov_detach_op( op, ss->ss_so, on );
2153 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2155 /* If there are queued responses, fire them off */
2156 if ( ss->ss_so->s_res )
2157 syncprov_qstart( ss->ss_so );
2158 ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
2161 return LDAP_SUCCESS;
2165 return SLAP_CB_CONTINUE;
2169 syncprov_op_search( Operation *op, SlapReply *rs )
2171 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2172 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2174 int gotstate = 0, changed = 0, do_present = 0;
2175 syncops *sop = NULL;
2179 int i, *sids, numcsns;
2180 struct berval mincsn;
2182 if ( !(op->o_sync_mode & SLAP_SYNC_REFRESH) ) return SLAP_CB_CONTINUE;
2184 if ( op->ors_deref & LDAP_DEREF_SEARCHING ) {
2185 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR, "illegal value for derefAliases" );
2189 srs = op->o_controls[slap_cids.sc_LDAPsync];
2191 /* If this is a persistent search, set it up right away */
2192 if ( op->o_sync_mode & SLAP_SYNC_PERSIST ) {
2202 so.s_flags = PS_IS_REFRESHING | PS_FIND_BASE;
2203 /* syncprov_findbase expects to be called as a callback... */
2204 sc.sc_private = &opc;
2206 ldap_pvt_thread_mutex_init( &so.s_mutex );
2207 cb = op->o_callback;
2208 op->o_callback = ≻
2209 rs->sr_err = syncprov_findbase( op, &fc );
2210 op->o_callback = cb;
2211 ldap_pvt_thread_mutex_destroy( &so.s_mutex );
2213 if ( rs->sr_err != LDAP_SUCCESS ) {
2214 send_ldap_result( op, rs );
2217 sop = ch_malloc( sizeof( syncops ));
2219 ldap_pvt_thread_mutex_init( &sop->s_mutex );
2220 sop->s_rid = srs->sr_state.rid;
2221 sop->s_sid = srs->sr_state.sid;
2224 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2225 sop->s_next = si->si_ops;
2227 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2230 /* snapshot the ctxcsn */
2231 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2232 numcsns = si->si_numcsns;
2234 ber_bvarray_dup_x( &ctxcsn, si->si_ctxcsn, op->o_tmpmemctx );
2235 sids = op->o_tmpalloc( numcsns * sizeof(int), op->o_tmpmemctx );
2236 for ( i=0; i<numcsns; i++ )
2237 sids[i] = si->si_sids[i];
2242 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2244 /* If we have a cookie, handle the PRESENT lookups */
2245 if ( srs->sr_state.ctxcsn ) {
2249 /* If we don't have any CSN of our own yet, pretend nothing
2255 if ( !si->si_nopres )
2256 do_present = SS_PRESENT;
2258 /* If there are SIDs we don't recognize in the cookie, drop them */
2259 for (i=0; i<srs->sr_state.numcsns; ) {
2260 for (j=0; j<numcsns; j++) {
2261 if ( srs->sr_state.sids[i] == sids[j] ) {
2266 if ( j == numcsns ) {
2267 struct berval tmp = srs->sr_state.ctxcsn[i];
2268 j = srs->sr_state.numcsns - 1;
2269 srs->sr_state.ctxcsn[i] = srs->sr_state.ctxcsn[j];
2271 srs->sr_state.ctxcsn[j] = tmp;
2272 srs->sr_state.numcsns = j;
2273 srs->sr_state.sids[i] = srs->sr_state.sids[j];
2279 /* Find the smallest CSN */
2280 mincsn = srs->sr_state.ctxcsn[0];
2281 for ( i=1; i<srs->sr_state.numcsns; i++ ) {
2282 if ( ber_bvcmp( &mincsn, &srs->sr_state.ctxcsn[i] ) > 0 )
2283 mincsn = srs->sr_state.ctxcsn[i];
2286 /* If nothing has changed, shortcut it */
2287 if ( srs->sr_state.numcsns == numcsns ) {
2289 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2290 for ( j=0; j<numcsns; j++ ) {
2291 if ( srs->sr_state.sids[i] != sids[j] )
2293 if ( !bvmatch( &srs->sr_state.ctxcsn[i], &ctxcsn[j] ))
2294 changed = SS_CHANGED;
2302 no_change: if ( !(op->o_sync_mode & SLAP_SYNC_PERSIST) ) {
2303 LDAPControl *ctrls[2];
2307 syncprov_done_ctrl( op, rs, ctrls, 0, 0,
2308 NULL, LDAP_SYNC_REFRESH_DELETES );
2309 rs->sr_ctrls = ctrls;
2310 rs->sr_err = LDAP_SUCCESS;
2311 send_ldap_result( op, rs );
2312 rs->sr_ctrls = NULL;
2318 /* consumer doesn't have the right number of CSNs */
2319 changed = SS_CHANGED;
2321 /* Do we have a sessionlog for this search? */
2324 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
2325 /* Are there any log entries, and is the consumer state
2326 * present in the session log?
2328 if ( sl->sl_num > 0 && ber_bvcmp( &mincsn, &sl->sl_mincsn ) >= 0 ) {
2330 /* mutex is unlocked in playlog */
2331 syncprov_playlog( op, rs, sl, srs, ctxcsn, numcsns, sids );
2333 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
2336 /* Is the CSN still present in the database? */
2337 if ( syncprov_findcsn( op, FIND_CSN ) != LDAP_SUCCESS ) {
2338 /* No, so a reload is required */
2339 /* the 2.2 consumer doesn't send this hint */
2340 if ( si->si_usehint && srs->sr_rhint == 0 ) {
2342 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2344 op->o_tmpfree( sids, op->o_tmpmemctx );
2345 send_ldap_error( op, rs, LDAP_SYNC_REFRESH_REQUIRED, "sync cookie is stale" );
2348 if ( srs->sr_state.ctxcsn ) {
2349 ber_bvarray_free_x( srs->sr_state.ctxcsn, op->o_tmpmemctx );
2350 srs->sr_state.ctxcsn = NULL;
2352 if ( srs->sr_state.sids ) {
2353 slap_sl_free( srs->sr_state.sids, op->o_tmpmemctx );
2354 srs->sr_state.sids = NULL;
2356 srs->sr_state.numcsns = 0;
2359 /* If changed and doing Present lookup, send Present UUIDs */
2360 if ( do_present && syncprov_findcsn( op, FIND_PRESENT ) !=
2363 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2365 op->o_tmpfree( sids, op->o_tmpmemctx );
2366 send_ldap_result( op, rs );
2371 /* No consumer state, assume something has changed */
2372 changed = SS_CHANGED;
2376 /* Append CSN range to search filter, save original filter
2377 * for persistent search evaluation
2380 sop->s_filterstr= op->ors_filterstr;
2383 /* If something changed, find the changes */
2384 if ( gotstate && changed ) {
2385 Filter *fand, *fava;
2387 fand = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2388 fand->f_choice = LDAP_FILTER_AND;
2389 fand->f_next = NULL;
2390 fava = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2392 fava->f_choice = LDAP_FILTER_GE;
2393 fava->f_ava = op->o_tmpalloc( sizeof(AttributeAssertion), op->o_tmpmemctx );
2394 fava->f_ava->aa_desc = slap_schema.si_ad_entryCSN;
2395 #ifdef LDAP_COMP_MATCH
2396 fava->f_ava->aa_cf = NULL;
2398 ber_dupbv_x( &fava->f_ava->aa_value, &mincsn, op->o_tmpmemctx );
2399 fava->f_next = op->ors_filter;
2400 op->ors_filter = fand;
2401 filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2403 sop->s_flags |= PS_FIX_FILTER;
2406 /* Let our callback add needed info to returned entries */
2407 cb = op->o_tmpcalloc(1, sizeof(slap_callback)+sizeof(searchstate), op->o_tmpmemctx);
2408 ss = (searchstate *)(cb+1);
2411 ss->ss_flags = do_present | changed;
2412 ss->ss_ctxcsn = ctxcsn;
2413 ss->ss_numcsns = numcsns;
2415 cb->sc_response = syncprov_search_response;
2416 cb->sc_cleanup = syncprov_search_cleanup;
2417 cb->sc_private = ss;
2418 cb->sc_next = op->o_callback;
2419 op->o_callback = cb;
2421 /* If this is a persistent search and no changes were reported during
2422 * the refresh phase, just invoke the response callback to transition
2423 * us into persist phase
2426 rs->sr_err = LDAP_SUCCESS;
2427 rs->sr_nentries = 0;
2428 send_ldap_result( op, rs );
2431 return SLAP_CB_CONTINUE;
2435 syncprov_operational(
2439 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2440 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2442 /* This prevents generating unnecessarily; frontend will strip
2443 * any statically stored copy.
2445 if ( op->o_sync != SLAP_CONTROL_NONE )
2446 return SLAP_CB_CONTINUE;
2448 if ( rs->sr_entry &&
2449 dn_match( &rs->sr_entry->e_nname, op->o_bd->be_nsuffix )) {
2451 if ( SLAP_OPATTRS( rs->sr_attr_flags ) ||
2452 ad_inlist( slap_schema.si_ad_contextCSN, rs->sr_attrs )) {
2453 Attribute *a, **ap = NULL;
2455 for ( a=rs->sr_entry->e_attrs; a; a=a->a_next ) {
2456 if ( a->a_desc == slap_schema.si_ad_contextCSN )
2460 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2461 if ( si->si_ctxcsn ) {
2463 for ( ap = &rs->sr_operational_attrs; *ap;
2464 ap=&(*ap)->a_next );
2466 a = attr_alloc( slap_schema.si_ad_contextCSN );
2471 if ( !(rs->sr_flags & REP_ENTRY_MODIFIABLE) ) {
2472 Entry *e = entry_dup( rs->sr_entry );
2473 if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
2474 overlay_entry_release_ov( op, rs->sr_entry, 0, on );
2475 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
2476 } else if ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) {
2477 entry_free( rs->sr_entry );
2481 REP_ENTRY_MODIFIABLE|REP_ENTRY_MUSTBEFREED;
2482 a = attr_find( rs->sr_entry->e_attrs,
2483 slap_schema.si_ad_contextCSN );
2485 if ( a->a_nvals != a->a_vals ) {
2486 ber_bvarray_free( a->a_nvals );
2489 ber_bvarray_free( a->a_vals );
2493 attr_valadd( a, si->si_ctxcsn, si->si_ctxcsn, si->si_numcsns );
2495 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2498 return SLAP_CB_CONTINUE;
2508 static ConfigDriver sp_cf_gen;
2510 static ConfigTable spcfg[] = {
2511 { "syncprov-checkpoint", "ops> <minutes", 3, 3, 0, ARG_MAGIC|SP_CHKPT,
2512 sp_cf_gen, "( OLcfgOvAt:1.1 NAME 'olcSpCheckpoint' "
2513 "DESC 'ContextCSN checkpoint interval in ops and minutes' "
2514 "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
2515 { "syncprov-sessionlog", "ops", 2, 2, 0, ARG_INT|ARG_MAGIC|SP_SESSL,
2516 sp_cf_gen, "( OLcfgOvAt:1.2 NAME 'olcSpSessionlog' "
2517 "DESC 'Session log size in ops' "
2518 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
2519 { "syncprov-nopresent", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_NOPRES,
2520 sp_cf_gen, "( OLcfgOvAt:1.3 NAME 'olcSpNoPresent' "
2521 "DESC 'Omit Present phase processing' "
2522 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2523 { "syncprov-reloadhint", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_USEHINT,
2524 sp_cf_gen, "( OLcfgOvAt:1.4 NAME 'olcSpReloadHint' "
2525 "DESC 'Observe Reload Hint in Request control' "
2526 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2527 { NULL, NULL, 0, 0, 0, ARG_IGNORED }
2530 static ConfigOCs spocs[] = {
2531 { "( OLcfgOvOc:1.1 "
2532 "NAME 'olcSyncProvConfig' "
2533 "DESC 'SyncRepl Provider configuration' "
2534 "SUP olcOverlayConfig "
2535 "MAY ( olcSpCheckpoint "
2536 "$ olcSpSessionlog "
2538 "$ olcSpReloadHint "
2540 Cft_Overlay, spcfg },
2545 sp_cf_gen(ConfigArgs *c)
2547 slap_overinst *on = (slap_overinst *)c->bi;
2548 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2551 if ( c->op == SLAP_CONFIG_EMIT ) {
2552 switch ( c->type ) {
2554 if ( si->si_chkops || si->si_chktime ) {
2556 bv.bv_len = snprintf( c->cr_msg, sizeof( c->cr_msg ),
2557 "%d %d", si->si_chkops, si->si_chktime );
2558 if ( bv.bv_len >= sizeof( c->cr_msg ) ) {
2561 bv.bv_val = c->cr_msg;
2562 value_add_one( &c->rvalue_vals, &bv );
2569 if ( si->si_logs ) {
2570 c->value_int = si->si_logs->sl_size;
2576 if ( si->si_nopres ) {
2583 if ( si->si_usehint ) {
2591 } else if ( c->op == LDAP_MOD_DELETE ) {
2592 switch ( c->type ) {
2599 si->si_logs->sl_size = 0;
2601 rc = LDAP_NO_SUCH_ATTRIBUTE;
2604 if ( si->si_nopres )
2607 rc = LDAP_NO_SUCH_ATTRIBUTE;
2610 if ( si->si_usehint )
2613 rc = LDAP_NO_SUCH_ATTRIBUTE;
2618 switch ( c->type ) {
2620 if ( lutil_atoi( &si->si_chkops, c->argv[1] ) != 0 ) {
2621 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint ops # \"%s\"",
2622 c->argv[0], c->argv[1] );
2623 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2624 "%s: %s\n", c->log, c->cr_msg, 0 );
2625 return ARG_BAD_CONF;
2627 if ( si->si_chkops <= 0 ) {
2628 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint ops # \"%d\"",
2629 c->argv[0], si->si_chkops );
2630 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2631 "%s: %s\n", c->log, c->cr_msg, 0 );
2632 return ARG_BAD_CONF;
2634 if ( lutil_atoi( &si->si_chktime, c->argv[2] ) != 0 ) {
2635 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint time \"%s\"",
2636 c->argv[0], c->argv[1] );
2637 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2638 "%s: %s\n", c->log, c->cr_msg, 0 );
2639 return ARG_BAD_CONF;
2641 if ( si->si_chktime <= 0 ) {
2642 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint time \"%d\"",
2643 c->argv[0], si->si_chkops );
2644 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2645 "%s: %s\n", c->log, c->cr_msg, 0 );
2646 return ARG_BAD_CONF;
2648 si->si_chktime *= 60;
2652 int size = c->value_int;
2655 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s size %d is negative",
2657 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2658 "%s: %s\n", c->log, c->cr_msg, 0 );
2659 return ARG_BAD_CONF;
2663 sl = ch_malloc( sizeof( sessionlog ) + LDAP_LUTIL_CSNSTR_BUFSIZE );
2664 sl->sl_mincsn.bv_val = (char *)(sl+1);
2665 sl->sl_mincsn.bv_len = 0;
2667 sl->sl_head = sl->sl_tail = NULL;
2668 ldap_pvt_thread_mutex_init( &sl->sl_mutex );
2675 si->si_nopres = c->value_int;
2678 si->si_usehint = c->value_int;
2684 /* ITS#3456 we cannot run this search on the main thread, must use a
2685 * child thread in order to insure we have a big enough stack.
2692 syncprov_findcsn( ptr, FIND_MAXCSN );
2696 /* Read any existing contextCSN from the underlying db.
2697 * Then search for any entries newer than that. If no value exists,
2698 * just generate it. Cache whatever result.
2706 slap_overinst *on = (slap_overinst *) be->bd_info;
2707 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2709 Connection conn = { 0 };
2710 OperationBuffer opbuf;
2715 void *thrctx = NULL;
2717 if ( !SLAP_LASTMOD( be )) {
2718 Debug( LDAP_DEBUG_ANY,
2719 "syncprov_db_open: invalid config, lastmod must be enabled\n", 0, 0, 0 );
2723 if ( slapMode & SLAP_TOOL_MODE ) {
2727 rc = overlay_register_control( be, LDAP_CONTROL_SYNC );
2732 thrctx = ldap_pvt_thread_pool_context();
2733 connection_fake_init( &conn, &opbuf, thrctx );
2736 op->o_dn = be->be_rootdn;
2737 op->o_ndn = be->be_rootndn;
2739 rc = overlay_entry_get_ov( op, be->be_nsuffix, NULL,
2740 slap_schema.si_ad_contextCSN, 0, &e, on );
2743 ldap_pvt_thread_t tid;
2745 a = attr_find( e->e_attrs, slap_schema.si_ad_contextCSN );
2747 ber_bvarray_dup_x( &si->si_ctxcsn, a->a_vals, NULL );
2748 si->si_numcsns = a->a_numvals;
2749 si->si_sids = slap_parse_csn_sids( si->si_ctxcsn, a->a_numvals, NULL );
2751 overlay_entry_release_ov( op, e, 0, on );
2752 if ( si->si_ctxcsn && !SLAP_DBCLEAN( be )) {
2753 op->o_req_dn = be->be_suffix[0];
2754 op->o_req_ndn = be->be_nsuffix[0];
2755 op->ors_scope = LDAP_SCOPE_SUBTREE;
2756 ldap_pvt_thread_create( &tid, 0, syncprov_db_otask, op );
2757 ldap_pvt_thread_join( tid, NULL );
2761 /* Didn't find a contextCSN, should we generate one? */
2762 if ( !si->si_ctxcsn ) {
2763 char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
2766 if ( SLAP_SYNC_SHADOW( op->o_bd )) {
2767 /* If we're also a consumer, then don't generate anything.
2768 * Wait for our provider to send it to us, or for a local
2769 * modify if we have multimaster.
2773 csn.bv_val = csnbuf;
2774 csn.bv_len = sizeof( csnbuf );
2775 slap_get_csn( op, &csn, 0 );
2776 value_add_one( &si->si_ctxcsn, &csn );
2778 si->si_sids = ch_malloc( sizeof(int) );
2779 si->si_sids[0] = slap_serverID;
2781 /* make sure we do a checkpoint on close */
2786 op->o_bd->bd_info = (BackendInfo *)on;
2790 /* Write the current contextCSN into the underlying db.
2798 slap_overinst *on = (slap_overinst *) be->bd_info;
2799 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2801 if ( slapMode & SLAP_TOOL_MODE ) {
2804 if ( si->si_numops ) {
2805 Connection conn = {0};
2806 OperationBuffer opbuf;
2808 SlapReply rs = {REP_RESULT};
2811 thrctx = ldap_pvt_thread_pool_context();
2812 connection_fake_init( &conn, &opbuf, thrctx );
2815 op->o_dn = be->be_rootdn;
2816 op->o_ndn = be->be_rootndn;
2817 syncprov_checkpoint( op, &rs, on );
2829 slap_overinst *on = (slap_overinst *)be->bd_info;
2830 syncprov_info_t *si;
2832 if ( SLAP_ISGLOBALOVERLAY( be ) ) {
2833 Debug( LDAP_DEBUG_ANY,
2834 "syncprov must be instantiated within a database.\n",
2839 si = ch_calloc(1, sizeof(syncprov_info_t));
2840 on->on_bi.bi_private = si;
2841 ldap_pvt_thread_rdwr_init( &si->si_csn_rwlock );
2842 ldap_pvt_thread_mutex_init( &si->si_ops_mutex );
2843 ldap_pvt_thread_mutex_init( &si->si_mods_mutex );
2845 csn_anlist[0].an_desc = slap_schema.si_ad_entryCSN;
2846 csn_anlist[0].an_name = slap_schema.si_ad_entryCSN->ad_cname;
2847 csn_anlist[1].an_desc = slap_schema.si_ad_entryUUID;
2848 csn_anlist[1].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2850 uuid_anlist[0].an_desc = slap_schema.si_ad_entryUUID;
2851 uuid_anlist[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2857 syncprov_db_destroy(
2862 slap_overinst *on = (slap_overinst *)be->bd_info;
2863 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2866 if ( si->si_logs ) {
2867 slog_entry *se = si->si_logs->sl_head;
2870 slog_entry *se_next = se->se_next;
2875 ch_free( si->si_logs );
2877 if ( si->si_ctxcsn )
2878 ber_bvarray_free( si->si_ctxcsn );
2880 ch_free( si->si_sids );
2881 ldap_pvt_thread_mutex_destroy( &si->si_mods_mutex );
2882 ldap_pvt_thread_mutex_destroy( &si->si_ops_mutex );
2883 ldap_pvt_thread_rdwr_destroy( &si->si_csn_rwlock );
2890 static int syncprov_parseCtrl (
2896 BerElementBuffer berbuf;
2897 BerElement *ber = (BerElement *)&berbuf;
2900 struct berval cookie = BER_BVNULL;
2904 if ( op->o_sync != SLAP_CONTROL_NONE ) {
2905 rs->sr_text = "Sync control specified multiple times";
2906 return LDAP_PROTOCOL_ERROR;
2909 if ( op->o_pagedresults != SLAP_CONTROL_NONE ) {
2910 rs->sr_text = "Sync control specified with pagedResults control";
2911 return LDAP_PROTOCOL_ERROR;
2914 if ( BER_BVISNULL( &ctrl->ldctl_value ) ) {
2915 rs->sr_text = "Sync control value is absent";
2916 return LDAP_PROTOCOL_ERROR;
2919 if ( BER_BVISEMPTY( &ctrl->ldctl_value ) ) {
2920 rs->sr_text = "Sync control value is empty";
2921 return LDAP_PROTOCOL_ERROR;
2924 /* Parse the control value
2925 * syncRequestValue ::= SEQUENCE {
2930 * refreshAndPersist (3)
2932 * cookie syncCookie OPTIONAL
2936 ber_init2( ber, &ctrl->ldctl_value, 0 );
2938 if ( (tag = ber_scanf( ber, "{i" /*}*/, &mode )) == LBER_ERROR ) {
2939 rs->sr_text = "Sync control : mode decoding error";
2940 return LDAP_PROTOCOL_ERROR;
2944 case LDAP_SYNC_REFRESH_ONLY:
2945 mode = SLAP_SYNC_REFRESH;
2947 case LDAP_SYNC_REFRESH_AND_PERSIST:
2948 mode = SLAP_SYNC_REFRESH_AND_PERSIST;
2951 rs->sr_text = "Sync control : unknown update mode";
2952 return LDAP_PROTOCOL_ERROR;
2955 tag = ber_peek_tag( ber, &len );
2957 if ( tag == LDAP_TAG_SYNC_COOKIE ) {
2958 if (( ber_scanf( ber, /*{*/ "m", &cookie )) == LBER_ERROR ) {
2959 rs->sr_text = "Sync control : cookie decoding error";
2960 return LDAP_PROTOCOL_ERROR;
2962 tag = ber_peek_tag( ber, &len );
2964 if ( tag == LDAP_TAG_RELOAD_HINT ) {
2965 if (( ber_scanf( ber, /*{*/ "b", &rhint )) == LBER_ERROR ) {
2966 rs->sr_text = "Sync control : rhint decoding error";
2967 return LDAP_PROTOCOL_ERROR;
2970 if (( ber_scanf( ber, /*{*/ "}")) == LBER_ERROR ) {
2971 rs->sr_text = "Sync control : decoding error";
2972 return LDAP_PROTOCOL_ERROR;
2974 sr = op->o_tmpcalloc( 1, sizeof(struct sync_control), op->o_tmpmemctx );
2975 sr->sr_rhint = rhint;
2976 if (!BER_BVISNULL(&cookie)) {
2977 ber_dupbv_x( &sr->sr_state.octet_str, &cookie, op->o_tmpmemctx );
2978 /* If parse fails, pretend no cookie was sent */
2979 if ( slap_parse_sync_cookie( &sr->sr_state, op->o_tmpmemctx ) ||
2980 sr->sr_state.rid == -1 ) {
2981 if ( sr->sr_state.ctxcsn ) {
2982 ber_bvarray_free_x( sr->sr_state.ctxcsn, op->o_tmpmemctx );
2983 sr->sr_state.ctxcsn = NULL;
2985 sr->sr_state.numcsns = 0;
2989 op->o_controls[slap_cids.sc_LDAPsync] = sr;
2991 op->o_sync = ctrl->ldctl_iscritical
2992 ? SLAP_CONTROL_CRITICAL
2993 : SLAP_CONTROL_NONCRITICAL;
2995 op->o_sync_mode |= mode; /* o_sync_mode shares o_sync */
2997 return LDAP_SUCCESS;
3000 /* This overlay is set up for dynamic loading via moduleload. For static
3001 * configuration, you'll need to arrange for the slap_overinst to be
3002 * initialized and registered by some other function inside slapd.
3005 static slap_overinst syncprov;
3008 syncprov_initialize()
3012 rc = register_supported_control( LDAP_CONTROL_SYNC,
3013 SLAP_CTRL_SEARCH, NULL,
3014 syncprov_parseCtrl, &slap_cids.sc_LDAPsync );
3015 if ( rc != LDAP_SUCCESS ) {
3016 Debug( LDAP_DEBUG_ANY,
3017 "syncprov_init: Failed to register control %d\n", rc, 0, 0 );
3021 syncprov.on_bi.bi_type = "syncprov";
3022 syncprov.on_bi.bi_db_init = syncprov_db_init;
3023 syncprov.on_bi.bi_db_destroy = syncprov_db_destroy;
3024 syncprov.on_bi.bi_db_open = syncprov_db_open;
3025 syncprov.on_bi.bi_db_close = syncprov_db_close;
3027 syncprov.on_bi.bi_op_abandon = syncprov_op_abandon;
3028 syncprov.on_bi.bi_op_cancel = syncprov_op_abandon;
3030 syncprov.on_bi.bi_op_add = syncprov_op_mod;
3031 syncprov.on_bi.bi_op_compare = syncprov_op_compare;
3032 syncprov.on_bi.bi_op_delete = syncprov_op_mod;
3033 syncprov.on_bi.bi_op_modify = syncprov_op_mod;
3034 syncprov.on_bi.bi_op_modrdn = syncprov_op_mod;
3035 syncprov.on_bi.bi_op_search = syncprov_op_search;
3036 syncprov.on_bi.bi_extended = syncprov_op_extended;
3037 syncprov.on_bi.bi_operational = syncprov_operational;
3039 syncprov.on_bi.bi_cf_ocs = spocs;
3041 generic_filter.f_desc = slap_schema.si_ad_objectClass;
3043 rc = config_register_schema( spcfg, spocs );
3044 if ( rc ) return rc;
3046 return overlay_register( &syncprov );
3049 #if SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC
3051 init_module( int argc, char *argv[] )
3053 return syncprov_initialize();
3055 #endif /* SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC */
3057 #endif /* defined(SLAPD_OVER_SYNCPROV) */