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
74 #define PS_TASK_QUEUED 0x20
76 int s_inuse; /* reference count */
77 struct syncres *s_res;
78 struct syncres *s_restail;
79 ldap_pvt_thread_mutex_t s_mutex;
82 /* A received sync control */
83 typedef struct sync_control {
84 struct sync_cookie sr_state;
88 #if 0 /* moved back to slap.h */
89 #define o_sync o_ctrlflag[slap_cids.sc_LDAPsync]
91 /* o_sync_mode uses data bits of o_sync */
92 #define o_sync_mode o_ctrlflag[slap_cids.sc_LDAPsync]
94 #define SLAP_SYNC_NONE (LDAP_SYNC_NONE<<SLAP_CONTROL_SHIFT)
95 #define SLAP_SYNC_REFRESH (LDAP_SYNC_REFRESH_ONLY<<SLAP_CONTROL_SHIFT)
96 #define SLAP_SYNC_PERSIST (LDAP_SYNC_RESERVED<<SLAP_CONTROL_SHIFT)
97 #define SLAP_SYNC_REFRESH_AND_PERSIST (LDAP_SYNC_REFRESH_AND_PERSIST<<SLAP_CONTROL_SHIFT)
99 /* Record of which searches matched at premodify step */
100 typedef struct syncmatches {
101 struct syncmatches *sm_next;
105 /* Session log data */
106 typedef struct slog_entry {
107 struct slog_entry *se_next;
108 struct berval se_uuid;
109 struct berval se_csn;
114 typedef struct sessionlog {
115 struct berval sl_mincsn;
120 ldap_pvt_thread_mutex_t sl_mutex;
123 /* The main state for this overlay */
124 typedef struct syncprov_info_t {
126 BerVarray si_ctxcsn; /* ldapsync context */
129 int si_chkops; /* checkpointing info */
131 int si_numops; /* number of ops since last checkpoint */
132 int si_nopres; /* Skip present phase */
133 int si_usehint; /* use reload hint */
134 time_t si_chklast; /* time of last checkpoint */
135 Avlnode *si_mods; /* entries being modified */
137 ldap_pvt_thread_rdwr_t si_csn_rwlock;
138 ldap_pvt_thread_mutex_t si_ops_mutex;
139 ldap_pvt_thread_mutex_t si_mods_mutex;
142 typedef struct opcookie {
144 syncmatches *smatches;
145 struct berval sdn; /* DN of entry, for deletes */
147 struct berval suuid; /* UUID of entry */
148 struct berval sctxcsn;
149 int sreference; /* Is the entry a reference? */
152 typedef struct fbase_cookie {
153 struct berval *fdn; /* DN of a modified entry, for scope testing */
154 syncops *fss; /* persistent search we're testing against */
155 int fbase; /* if TRUE we found the search base and it's still valid */
156 int fscope; /* if TRUE then fdn is within the psearch scope */
159 static AttributeName csn_anlist[3];
160 static AttributeName uuid_anlist[2];
162 /* Build a LDAPsync intermediate state control */
168 int entry_sync_state,
172 struct berval *cookie )
177 BerElementBuffer berbuf;
178 BerElement *ber = (BerElement *)&berbuf;
180 struct berval entryuuid_bv = BER_BVNULL;
182 ber_init2( ber, 0, LBER_USE_DER );
183 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
185 ctrls[num_ctrls] = op->o_tmpalloc( sizeof ( LDAPControl ), op->o_tmpmemctx );
187 for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
188 AttributeDescription *desc = a->a_desc;
189 if ( desc == slap_schema.si_ad_entryUUID ) {
190 entryuuid_bv = a->a_nvals[0];
195 /* FIXME: what if entryuuid is NULL or empty ? */
197 if ( send_cookie && cookie ) {
198 ber_printf( ber, "{eOON}",
199 entry_sync_state, &entryuuid_bv, cookie );
201 ber_printf( ber, "{eON}",
202 entry_sync_state, &entryuuid_bv );
205 ctrls[num_ctrls]->ldctl_oid = LDAP_CONTROL_SYNC_STATE;
206 ctrls[num_ctrls]->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
207 ret = ber_flatten2( ber, &ctrls[num_ctrls]->ldctl_value, 1 );
212 Debug( LDAP_DEBUG_TRACE,
213 "slap_build_sync_ctrl: ber_flatten2 failed\n",
215 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
222 /* Build a LDAPsync final state control */
230 struct berval *cookie,
234 BerElementBuffer berbuf;
235 BerElement *ber = (BerElement *)&berbuf;
237 ber_init2( ber, NULL, LBER_USE_DER );
238 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
240 ctrls[num_ctrls] = op->o_tmpalloc( sizeof ( LDAPControl ), op->o_tmpmemctx );
242 ber_printf( ber, "{" );
243 if ( send_cookie && cookie ) {
244 ber_printf( ber, "O", cookie );
246 if ( refreshDeletes == LDAP_SYNC_REFRESH_DELETES ) {
247 ber_printf( ber, "b", refreshDeletes );
249 ber_printf( ber, "N}" );
251 ctrls[num_ctrls]->ldctl_oid = LDAP_CONTROL_SYNC_DONE;
252 ctrls[num_ctrls]->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
253 ret = ber_flatten2( ber, &ctrls[num_ctrls]->ldctl_value, 1 );
258 Debug( LDAP_DEBUG_TRACE,
259 "syncprov_done_ctrl: ber_flatten2 failed\n",
261 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
273 struct berval *cookie,
278 BerElementBuffer berbuf;
279 BerElement *ber = (BerElement *)&berbuf;
280 struct berval rspdata;
284 ber_init2( ber, NULL, LBER_USE_DER );
285 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
289 case LDAP_TAG_SYNC_NEW_COOKIE:
290 ber_printf( ber, "tO", type, cookie );
292 case LDAP_TAG_SYNC_REFRESH_DELETE:
293 case LDAP_TAG_SYNC_REFRESH_PRESENT:
294 ber_printf( ber, "t{", type );
296 ber_printf( ber, "O", cookie );
298 if ( refreshDone == 0 ) {
299 ber_printf( ber, "b", refreshDone );
301 ber_printf( ber, "N}" );
303 case LDAP_TAG_SYNC_ID_SET:
304 ber_printf( ber, "t{", type );
306 ber_printf( ber, "O", cookie );
308 if ( refreshDeletes == 1 ) {
309 ber_printf( ber, "b", refreshDeletes );
311 ber_printf( ber, "[W]", syncUUIDs );
312 ber_printf( ber, "N}" );
315 Debug( LDAP_DEBUG_TRACE,
316 "syncprov_sendinfo: invalid syncinfo type (%d)\n",
322 ret = ber_flatten2( ber, &rspdata, 0 );
325 Debug( LDAP_DEBUG_TRACE,
326 "syncprov_sendinfo: ber_flatten2 failed\n",
328 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
332 rs->sr_rspoid = LDAP_SYNC_INFO;
333 rs->sr_rspdata = &rspdata;
334 send_ldap_intermediate( op, rs );
335 rs->sr_rspdata = NULL;
341 /* Find a modtarget in an AVL tree */
343 sp_avl_cmp( const void *c1, const void *c2 )
345 const modtarget *m1, *m2;
349 rc = m1->mt_op->o_req_ndn.bv_len - m2->mt_op->o_req_ndn.bv_len;
352 return ber_bvcmp( &m1->mt_op->o_req_ndn, &m2->mt_op->o_req_ndn );
355 /* syncprov_findbase:
356 * finds the true DN of the base of a search (with alias dereferencing) and
357 * checks to make sure the base entry doesn't get replaced with a different
358 * entry (e.g., swapping trees via ModDN, or retargeting an alias). If a
359 * change is detected, any persistent search on this base must be terminated /
361 * On the first call, we just save the DN and entryID. On subsequent calls
362 * we compare the DN and entryID with the saved values.
365 findbase_cb( Operation *op, SlapReply *rs )
367 slap_callback *sc = op->o_callback;
369 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
370 fbase_cookie *fc = sc->sc_private;
372 /* If no entryID, we're looking for the first time.
373 * Just store whatever we got.
375 if ( fc->fss->s_eid == NOID ) {
377 fc->fss->s_eid = rs->sr_entry->e_id;
378 ber_dupbv( &fc->fss->s_base, &rs->sr_entry->e_nname );
380 } else if ( rs->sr_entry->e_id == fc->fss->s_eid &&
381 dn_match( &rs->sr_entry->e_nname, &fc->fss->s_base )) {
383 /* OK, the DN is the same and the entryID is the same. */
387 if ( rs->sr_err != LDAP_SUCCESS ) {
388 Debug( LDAP_DEBUG_ANY, "findbase failed! %d\n", rs->sr_err,0,0 );
393 static Filter generic_filter = { LDAP_FILTER_PRESENT, { 0 }, NULL };
394 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
397 syncprov_findbase( Operation *op, fbase_cookie *fc )
399 /* Use basic parameters from syncrepl search, but use
400 * current op's threadctx / tmpmemctx
402 ldap_pvt_thread_mutex_lock( &fc->fss->s_mutex );
403 if ( fc->fss->s_flags & PS_FIND_BASE ) {
404 slap_callback cb = {0};
406 SlapReply frs = { REP_RESULT };
409 fc->fss->s_flags ^= PS_FIND_BASE;
410 ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
412 fop = *fc->fss->s_op;
414 fop.o_bd = fop.o_bd->bd_self;
415 fop.o_hdr = op->o_hdr;
416 fop.o_time = op->o_time;
417 fop.o_tincr = op->o_tincr;
419 cb.sc_response = findbase_cb;
422 fop.o_sync_mode = 0; /* turn off sync mode */
423 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
424 fop.o_callback = &cb;
425 fop.o_tag = LDAP_REQ_SEARCH;
426 fop.ors_scope = LDAP_SCOPE_BASE;
427 fop.ors_limit = NULL;
429 fop.ors_tlimit = SLAP_NO_LIMIT;
430 fop.ors_attrs = slap_anlist_no_attrs;
431 fop.ors_attrsonly = 1;
432 fop.ors_filter = &generic_filter;
433 fop.ors_filterstr = generic_filterstr;
435 rc = fop.o_bd->be_search( &fop, &frs );
437 ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
441 /* After the first call, see if the fdn resides in the scope */
442 if ( fc->fbase == 1 ) {
443 switch ( fc->fss->s_op->ors_scope ) {
444 case LDAP_SCOPE_BASE:
445 fc->fscope = dn_match( fc->fdn, &fc->fss->s_base );
447 case LDAP_SCOPE_ONELEVEL: {
449 dnParent( fc->fdn, &pdn );
450 fc->fscope = dn_match( &pdn, &fc->fss->s_base );
452 case LDAP_SCOPE_SUBTREE:
453 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base );
455 case LDAP_SCOPE_SUBORDINATE:
456 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base ) &&
457 !dn_match( fc->fdn, &fc->fss->s_base );
465 /* If entryID has changed, then the base of this search has
466 * changed. Invalidate the psearch.
468 return LDAP_NO_SUCH_OBJECT;
472 * This function has three different purposes, but they all use a search
473 * that filters on entryCSN so they're combined here.
474 * 1: at startup time, after a contextCSN has been read from the database,
475 * we search for all entries with CSN >= contextCSN in case the contextCSN
476 * was not checkpointed at the previous shutdown.
478 * 2: when the current contextCSN is known and we have a sync cookie, we search
479 * for one entry with CSN = the cookie CSN. If not found, try <= cookie CSN.
480 * If an entry is found, the cookie CSN is valid, otherwise it is stale.
482 * 3: during a refresh phase, we search for all entries with CSN <= the cookie
483 * CSN, and generate Present records for them. We always collect this result
484 * in SyncID sets, even if there's only one match.
486 typedef enum find_csn_t {
493 findmax_cb( Operation *op, SlapReply *rs )
495 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
496 struct berval *maxcsn = op->o_callback->sc_private;
497 Attribute *a = attr_find( rs->sr_entry->e_attrs,
498 slap_schema.si_ad_entryCSN );
500 if ( a && ber_bvcmp( &a->a_vals[0], maxcsn ) > 0 &&
501 slap_parse_csn_sid( &a->a_vals[0] ) == slap_serverID ) {
502 maxcsn->bv_len = a->a_vals[0].bv_len;
503 strcpy( maxcsn->bv_val, a->a_vals[0].bv_val );
510 findcsn_cb( Operation *op, SlapReply *rs )
512 slap_callback *sc = op->o_callback;
514 /* We just want to know that at least one exists, so it's OK if
515 * we exceed the unchecked limit.
517 if ( rs->sr_err == LDAP_ADMINLIMIT_EXCEEDED ||
518 (rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS )) {
519 sc->sc_private = (void *)1;
524 /* Build a list of entryUUIDs for sending in a SyncID set */
528 typedef struct fpres_cookie {
535 findpres_cb( Operation *op, SlapReply *rs )
537 slap_callback *sc = op->o_callback;
538 fpres_cookie *pc = sc->sc_private;
540 int ret = SLAP_CB_CONTINUE;
542 switch ( rs->sr_type ) {
544 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
546 pc->uuids[pc->num].bv_val = pc->last;
547 AC_MEMCPY( pc->uuids[pc->num].bv_val, a->a_nvals[0].bv_val,
548 pc->uuids[pc->num].bv_len );
550 pc->last = pc->uuids[pc->num].bv_val;
551 pc->uuids[pc->num].bv_val = NULL;
554 if ( pc->num != SLAP_SYNCUUID_SET_SIZE )
560 ret = syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET, NULL,
562 pc->uuids[pc->num].bv_val = pc->last;
564 pc->last = pc->uuids[0].bv_val;
574 syncprov_findcsn( Operation *op, find_csn_t mode )
576 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
577 syncprov_info_t *si = on->on_bi.bi_private;
579 slap_callback cb = {0};
581 SlapReply frs = { REP_RESULT };
582 char buf[LDAP_LUTIL_CSNSTR_BUFSIZE + STRLENOF("(entryCSN<=)")];
583 char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
584 struct berval maxcsn;
586 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
587 fpres_cookie pcookie;
588 sync_control *srs = NULL;
589 struct slap_limits_set fc_limits;
590 int i, rc = LDAP_SUCCESS, findcsn_retry = 1;
593 if ( mode != FIND_MAXCSN ) {
594 srs = op->o_controls[slap_cids.sc_LDAPsync];
598 fop.o_sync_mode &= SLAP_CONTROL_MASK; /* turn off sync_mode */
599 /* We want pure entries, not referrals */
600 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
603 cf.f_av_desc = slap_schema.si_ad_entryCSN;
604 BER_BVZERO( &cf.f_av_value );
607 fop.o_callback = &cb;
608 fop.ors_limit = NULL;
609 fop.ors_tlimit = SLAP_NO_LIMIT;
610 fop.ors_filter = &cf;
611 fop.ors_filterstr.bv_val = buf;
616 cf.f_choice = LDAP_FILTER_GE;
617 /* If there are multiple CSNs, use the one with our serverID */
618 for ( i=0; i<si->si_numcsns; i++) {
619 if ( slap_serverID == si->si_sids[i] ) {
624 if ( i == si->si_numcsns ) {
625 /* No match: this is multimaster, and none of the content in the DB
626 * originated locally. Treat like no CSN.
628 return LDAP_NO_SUCH_OBJECT;
630 cf.f_av_value = si->si_ctxcsn[maxid];
631 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
632 "(entryCSN>=%s)", cf.f_av_value.bv_val );
633 if ( fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
636 fop.ors_attrsonly = 0;
637 fop.ors_attrs = csn_anlist;
638 fop.ors_slimit = SLAP_NO_LIMIT;
639 cb.sc_private = &maxcsn;
640 cb.sc_response = findmax_cb;
641 strcpy( cbuf, cf.f_av_value.bv_val );
642 maxcsn.bv_val = cbuf;
643 maxcsn.bv_len = cf.f_av_value.bv_len;
646 if ( BER_BVISEMPTY( &cf.f_av_value )) {
647 cf.f_av_value = srs->sr_state.ctxcsn[0];
648 /* If there are multiple CSNs, use the smallest */
649 for ( i=1; i<srs->sr_state.numcsns; i++ ) {
650 if ( ber_bvcmp( &cf.f_av_value, &srs->sr_state.ctxcsn[i] )
652 cf.f_av_value = srs->sr_state.ctxcsn[i];
656 /* Look for exact match the first time */
657 if ( findcsn_retry ) {
658 cf.f_choice = LDAP_FILTER_EQUALITY;
659 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
660 "(entryCSN=%s)", cf.f_av_value.bv_val );
661 /* On retry, look for <= */
663 cf.f_choice = LDAP_FILTER_LE;
664 fop.ors_limit = &fc_limits;
665 memset( &fc_limits, 0, sizeof( fc_limits ));
666 fc_limits.lms_s_unchecked = 1;
667 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
668 "(entryCSN<=%s)", cf.f_av_value.bv_val );
670 if ( fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
673 fop.ors_attrsonly = 1;
674 fop.ors_attrs = slap_anlist_no_attrs;
676 cb.sc_private = NULL;
677 cb.sc_response = findcsn_cb;
680 fop.ors_filter = op->ors_filter;
681 fop.ors_filterstr = op->ors_filterstr;
682 fop.ors_attrsonly = 0;
683 fop.ors_attrs = uuid_anlist;
684 fop.ors_slimit = SLAP_NO_LIMIT;
685 cb.sc_private = &pcookie;
686 cb.sc_response = findpres_cb;
689 /* preallocate storage for a full set */
690 pcookie.uuids = op->o_tmpalloc( (SLAP_SYNCUUID_SET_SIZE+1) *
691 sizeof(struct berval) + SLAP_SYNCUUID_SET_SIZE * UUID_LEN,
693 pcookie.last = (char *)(pcookie.uuids + SLAP_SYNCUUID_SET_SIZE+1);
694 pcookie.uuids[0].bv_val = pcookie.last;
695 pcookie.uuids[0].bv_len = UUID_LEN;
696 for (i=1; i<SLAP_SYNCUUID_SET_SIZE; i++) {
697 pcookie.uuids[i].bv_val = pcookie.uuids[i-1].bv_val + UUID_LEN;
698 pcookie.uuids[i].bv_len = UUID_LEN;
703 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
704 fop.o_bd->be_search( &fop, &frs );
705 fop.o_bd->bd_info = (BackendInfo *)on;
709 if ( ber_bvcmp( &si->si_ctxcsn[maxid], &maxcsn )) {
711 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
712 assert( !syn->ssyn_validate( syn, &maxcsn ));
714 ber_bvreplace( &si->si_ctxcsn[maxid], &maxcsn );
715 si->si_numops++; /* ensure a checkpoint */
719 /* If matching CSN was not found, invalidate the context. */
720 if ( !cb.sc_private ) {
721 /* If we didn't find an exact match, then try for <= */
722 if ( findcsn_retry ) {
726 rc = LDAP_NO_SUCH_OBJECT;
730 op->o_tmpfree( pcookie.uuids, op->o_tmpmemctx );
738 syncprov_free_syncop( syncops *so )
740 syncres *sr, *srnext;
741 GroupAssertion *ga, *gnext;
743 ldap_pvt_thread_mutex_lock( &so->s_mutex );
744 if ( --so->s_inuse > 0 ) {
745 ldap_pvt_thread_mutex_unlock( &so->s_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 );
847 syncprov_qstart( syncops *so );
849 /* Play back queued responses */
851 syncprov_qplay( Operation *op, syncops *so )
853 slap_overinst *on = LDAP_SLIST_FIRST(&so->s_op->o_extra)->oe_key;
862 ldap_pvt_thread_mutex_lock( &so->s_mutex );
865 so->s_res = sr->s_next;
867 so->s_restail = NULL;
868 /* Exit loop with mutex held */
869 if ( !sr || so->s_op->o_abandon )
871 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
873 if ( sr->s_mode == LDAP_SYNC_NEW_COOKIE ) {
874 SlapReply rs = { REP_INTERMEDIATE };
876 rc = syncprov_sendinfo( op, &rs, LDAP_TAG_SYNC_NEW_COOKIE,
877 &sr->s_csn, 0, NULL, 0 );
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 );
910 /* We now only send one change at a time, to prevent one
911 * psearch from hogging all the CPU. Resubmit this task if
912 * there are more responses queued and no errors occurred.
915 if ( rc == 0 && so->s_res ) {
916 syncprov_qstart( so );
918 so->s_flags ^= PS_TASK_QUEUED;
921 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
925 /* task for playing back queued responses */
927 syncprov_qtask( void *ctx, void *arg )
930 OperationBuffer opbuf;
937 op->o_hdr = &opbuf.ob_hdr;
938 op->o_controls = opbuf.ob_controls;
939 memset( op->o_controls, 0, sizeof(opbuf.ob_controls) );
941 *op->o_hdr = *so->s_op->o_hdr;
943 op->o_tmpmemctx = slap_sl_mem_create(SLAP_SLAB_SIZE, SLAP_SLAB_STACK, ctx, 1);
944 op->o_tmpmfuncs = &slap_sl_mfuncs;
945 op->o_threadctx = ctx;
947 /* syncprov_qplay expects a fake db */
948 be = *so->s_op->o_bd;
949 be.be_flags |= SLAP_DBFLAG_OVERLAY;
951 LDAP_SLIST_FIRST(&op->o_extra) = NULL;
952 op->o_callback = NULL;
954 rc = syncprov_qplay( op, so );
956 /* decrement use count... */
957 syncprov_free_syncop( so );
962 /* Start the task to play back queued psearch responses */
964 syncprov_qstart( syncops *so )
966 so->s_flags |= PS_TASK_QUEUED;
968 ldap_pvt_thread_pool_submit( &connection_pool,
969 syncprov_qtask, so );
972 /* Queue a persistent search response */
974 syncprov_qresp( opcookie *opc, syncops *so, int mode )
978 struct berval cookie = opc->sctxcsn;
980 if ( mode == LDAP_SYNC_NEW_COOKIE ) {
981 syncprov_info_t *si = opc->son->on_bi.bi_private;
983 slap_compose_sync_cookie( NULL, &cookie, si->si_ctxcsn,
984 so->s_rid, so->s_sid);
985 } else if ( opc->sctxcsn.bv_len ) {
986 /* Don't send changes back to their originator */
987 int sid = slap_parse_csn_sid( &opc->sctxcsn );
988 if ( sid >= 0 && sid == so->s_sid )
992 srsize = sizeof(syncres) + opc->suuid.bv_len + 1 +
993 opc->sdn.bv_len + 1 + opc->sndn.bv_len + 1;
995 srsize += cookie.bv_len + 1;
996 sr = ch_malloc( srsize );
998 sr->s_dn.bv_val = (char *)(sr + 1);
999 sr->s_dn.bv_len = opc->sdn.bv_len;
1001 sr->s_isreference = opc->sreference;
1002 sr->s_ndn.bv_val = lutil_strcopy( sr->s_dn.bv_val,
1003 opc->sdn.bv_val ) + 1;
1004 sr->s_ndn.bv_len = opc->sndn.bv_len;
1005 sr->s_uuid.bv_val = lutil_strcopy( sr->s_ndn.bv_val,
1006 opc->sndn.bv_val ) + 1;
1007 sr->s_uuid.bv_len = opc->suuid.bv_len;
1008 AC_MEMCPY( sr->s_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1009 if ( cookie.bv_len ) {
1010 sr->s_csn.bv_val = sr->s_uuid.bv_val + sr->s_uuid.bv_len + 1;
1011 strcpy( sr->s_csn.bv_val, cookie.bv_val );
1013 sr->s_csn.bv_val = NULL;
1015 sr->s_csn.bv_len = cookie.bv_len;
1017 if ( mode == LDAP_SYNC_NEW_COOKIE && cookie.bv_val ) {
1018 ch_free( cookie.bv_val );
1021 ldap_pvt_thread_mutex_lock( &so->s_mutex );
1025 so->s_restail->s_next = sr;
1029 /* If the base of the psearch was modified, check it next time round */
1030 if ( so->s_flags & PS_WROTE_BASE ) {
1031 so->s_flags ^= PS_WROTE_BASE;
1032 so->s_flags |= PS_FIND_BASE;
1034 if (( so->s_flags & (PS_IS_DETACHED|PS_TASK_QUEUED)) == PS_IS_DETACHED ) {
1035 syncprov_qstart( so );
1037 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
1038 return LDAP_SUCCESS;
1042 syncprov_drop_psearch( syncops *so, int lock )
1044 if ( so->s_flags & PS_IS_DETACHED ) {
1046 ldap_pvt_thread_mutex_lock( &so->s_op->o_conn->c_mutex );
1047 so->s_op->o_conn->c_n_ops_executing--;
1048 so->s_op->o_conn->c_n_ops_completed++;
1049 LDAP_STAILQ_REMOVE( &so->s_op->o_conn->c_ops, so->s_op, Operation,
1052 ldap_pvt_thread_mutex_unlock( &so->s_op->o_conn->c_mutex );
1054 syncprov_free_syncop( so );
1060 syncprov_ab_cleanup( Operation *op, SlapReply *rs )
1062 slap_callback *sc = op->o_callback;
1063 op->o_callback = sc->sc_next;
1064 syncprov_drop_psearch( op->o_callback->sc_private, 0 );
1065 op->o_tmpfree( sc, op->o_tmpmemctx );
1070 syncprov_op_abandon( Operation *op, SlapReply *rs )
1072 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1073 syncprov_info_t *si = on->on_bi.bi_private;
1074 syncops *so, *soprev;
1076 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1077 for ( so=si->si_ops, soprev = (syncops *)&si->si_ops; so;
1078 soprev=so, so=so->s_next ) {
1079 if ( so->s_op->o_connid == op->o_connid &&
1080 so->s_op->o_msgid == op->orn_msgid ) {
1081 so->s_op->o_abandon = 1;
1082 soprev->s_next = so->s_next;
1086 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1088 /* Is this really a Cancel exop? */
1089 if ( op->o_tag != LDAP_REQ_ABANDON ) {
1090 so->s_op->o_cancel = SLAP_CANCEL_ACK;
1091 rs->sr_err = LDAP_CANCELLED;
1092 send_ldap_result( so->s_op, rs );
1093 if ( so->s_flags & PS_IS_DETACHED ) {
1095 cb = op->o_tmpcalloc( 1, sizeof(slap_callback), op->o_tmpmemctx );
1096 cb->sc_cleanup = syncprov_ab_cleanup;
1097 cb->sc_next = op->o_callback;
1098 cb->sc_private = so;
1099 return SLAP_CB_CONTINUE;
1102 syncprov_drop_psearch( so, 0 );
1104 return SLAP_CB_CONTINUE;
1107 /* Find which persistent searches are affected by this operation */
1109 syncprov_matchops( Operation *op, opcookie *opc, int saveit )
1111 slap_overinst *on = opc->son;
1112 syncprov_info_t *si = on->on_bi.bi_private;
1115 syncops *ss, *sprev, *snext;
1119 struct berval newdn;
1121 BackendDB *b0 = op->o_bd, db;
1123 fc.fdn = &op->o_req_ndn;
1124 /* compute new DN */
1125 if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1127 if ( op->orr_nnewSup ) pdn = *op->orr_nnewSup;
1128 else dnParent( fc.fdn, &pdn );
1129 build_new_dn( &newdn, &pdn, &op->orr_nnewrdn, op->o_tmpmemctx );
1133 if ( op->o_tag != LDAP_REQ_ADD ) {
1134 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1138 rc = overlay_entry_get_ov( op, fc.fdn, NULL, NULL, 0, &e, on );
1139 /* If we're sending responses now, make a copy and unlock the DB */
1140 if ( e && !saveit ) {
1141 Entry *e2 = entry_dup( e );
1142 overlay_entry_release_ov( op, e, 0, on );
1153 if ( saveit || op->o_tag == LDAP_REQ_ADD ) {
1154 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1155 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1156 opc->sreference = is_entry_referral( e );
1157 a = attr_find( e->e_attrs, slap_schema.si_ad_entryUUID );
1159 ber_dupbv_x( &opc->suuid, &a->a_nvals[0], op->o_tmpmemctx );
1160 } else if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1161 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1162 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1163 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1164 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1167 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1168 for (ss = si->si_ops, sprev = (syncops *)&si->si_ops; ss;
1169 sprev = ss, ss=snext)
1177 if ( ss->s_op->o_abandon )
1185 /* If the base of the search is missing, signal a refresh */
1186 rc = syncprov_findbase( op, &fc );
1187 if ( rc != LDAP_SUCCESS ) {
1188 SlapReply rs = {REP_RESULT};
1189 send_ldap_error( ss->s_op, &rs, LDAP_SYNC_REFRESH_REQUIRED,
1190 "search base has changed" );
1191 sprev->s_next = snext;
1192 syncprov_drop_psearch( ss, 1 );
1198 /* If we're sending results now, look for this op in old matches */
1202 /* Did we modify the search base? */
1203 if ( dn_match( &op->o_req_ndn, &ss->s_base )) {
1204 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1205 ss->s_flags |= PS_WROTE_BASE;
1206 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1209 for ( sm=opc->smatches, old=(syncmatches *)&opc->smatches; sm;
1210 old=sm, sm=sm->sm_next ) {
1211 if ( sm->sm_op == ss ) {
1213 old->sm_next = sm->sm_next;
1214 op->o_tmpfree( sm, op->o_tmpmemctx );
1223 oh.oh_conn = ss->s_op->o_conn;
1224 oh.oh_connid = ss->s_op->o_connid;
1226 op2.o_extra = op->o_extra;
1229 /* check if current o_req_dn is in scope and matches filter */
1230 if ( fc.fscope && test_filter( &op2, e, ss->s_op->ors_filter ) ==
1231 LDAP_COMPARE_TRUE ) {
1233 sm = op->o_tmpalloc( sizeof(syncmatches), op->o_tmpmemctx );
1234 sm->sm_next = opc->smatches;
1236 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1238 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1241 /* if found send UPDATE else send ADD */
1242 syncprov_qresp( opc, ss,
1243 found ? LDAP_SYNC_MODIFY : LDAP_SYNC_ADD );
1245 } else if ( !saveit && found ) {
1247 syncprov_qresp( opc, ss, LDAP_SYNC_DELETE );
1248 } else if ( !saveit ) {
1249 syncprov_qresp( opc, ss, LDAP_SYNC_NEW_COOKIE );
1251 if ( !saveit && found ) {
1252 /* Decrement s_inuse, was incremented when called
1253 * with saveit == TRUE
1255 syncprov_free_syncop( ss );
1258 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1260 if ( op->o_tag != LDAP_REQ_ADD && e ) {
1261 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1264 overlay_entry_release_ov( op, e, 0, on );
1268 op->o_tmpfree( fc.fdn->bv_val, op->o_tmpmemctx );
1274 syncprov_op_cleanup( Operation *op, SlapReply *rs )
1276 slap_callback *cb = op->o_callback;
1277 opcookie *opc = cb->sc_private;
1278 slap_overinst *on = opc->son;
1279 syncprov_info_t *si = on->on_bi.bi_private;
1280 syncmatches *sm, *snext;
1281 modtarget *mt, mtdummy;
1283 for (sm = opc->smatches; sm; sm=snext) {
1284 snext = sm->sm_next;
1285 syncprov_free_syncop( sm->sm_op );
1286 op->o_tmpfree( sm, op->o_tmpmemctx );
1289 /* Remove op from lock table */
1291 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1292 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
1294 modinst *mi = mt->mt_mods;
1296 /* If there are more, promote the next one */
1297 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1298 if ( mi->mi_next ) {
1299 mt->mt_mods = mi->mi_next;
1300 mt->mt_op = mt->mt_mods->mi_op;
1301 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1303 avl_delete( &si->si_mods, mt, sp_avl_cmp );
1304 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1305 ldap_pvt_thread_mutex_destroy( &mt->mt_mutex );
1309 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1310 if ( !BER_BVISNULL( &opc->suuid ))
1311 op->o_tmpfree( opc->suuid.bv_val, op->o_tmpmemctx );
1312 if ( !BER_BVISNULL( &opc->sndn ))
1313 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1314 if ( !BER_BVISNULL( &opc->sdn ))
1315 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1316 op->o_callback = cb->sc_next;
1317 op->o_tmpfree(cb, op->o_tmpmemctx);
1323 syncprov_checkpoint( Operation *op, SlapReply *rs, slap_overinst *on )
1325 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
1328 SlapReply rsm = { 0 };
1329 slap_callback cb = {0};
1332 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1335 for ( i=0; i<si->si_numcsns; i++ ) {
1336 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1339 mod.sml_numvals = si->si_numcsns;
1340 mod.sml_values = si->si_ctxcsn;
1341 mod.sml_nvalues = NULL;
1342 mod.sml_desc = slap_schema.si_ad_contextCSN;
1343 mod.sml_op = LDAP_MOD_REPLACE;
1344 mod.sml_flags = SLAP_MOD_INTERNAL;
1345 mod.sml_next = NULL;
1347 cb.sc_response = slap_null_cb;
1349 opm.o_tag = LDAP_REQ_MODIFY;
1350 opm.o_callback = &cb;
1351 opm.orm_modlist = &mod;
1352 opm.orm_no_opattrs = 1;
1353 if ( SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1354 be = *on->on_info->oi_origdb;
1357 opm.o_req_dn = opm.o_bd->be_suffix[0];
1358 opm.o_req_ndn = opm.o_bd->be_nsuffix[0];
1359 opm.o_bd->bd_info = on->on_info->oi_orig;
1360 opm.o_managedsait = SLAP_CONTROL_NONCRITICAL;
1361 opm.o_no_schema_check = 1;
1362 opm.o_bd->be_modify( &opm, &rsm );
1363 if ( mod.sml_next != NULL ) {
1364 slap_mods_free( mod.sml_next, 1 );
1367 for ( i=0; i<si->si_numcsns; i++ ) {
1368 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1374 syncprov_add_slog( Operation *op )
1376 opcookie *opc = op->o_callback->sc_private;
1377 slap_overinst *on = opc->son;
1378 syncprov_info_t *si = on->on_bi.bi_private;
1384 /* Allocate a record. UUIDs are not NUL-terminated. */
1385 se = ch_malloc( sizeof( slog_entry ) + opc->suuid.bv_len +
1386 op->o_csn.bv_len + 1 );
1388 se->se_tag = op->o_tag;
1390 se->se_uuid.bv_val = (char *)(&se[1]);
1391 AC_MEMCPY( se->se_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1392 se->se_uuid.bv_len = opc->suuid.bv_len;
1394 se->se_csn.bv_val = se->se_uuid.bv_val + opc->suuid.bv_len;
1395 AC_MEMCPY( se->se_csn.bv_val, op->o_csn.bv_val, op->o_csn.bv_len );
1396 se->se_csn.bv_val[op->o_csn.bv_len] = '\0';
1397 se->se_csn.bv_len = op->o_csn.bv_len;
1398 se->se_sid = slap_parse_csn_sid( &se->se_csn );
1400 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1401 if ( sl->sl_head ) {
1402 sl->sl_tail->se_next = se;
1408 while ( sl->sl_num > sl->sl_size ) {
1410 sl->sl_head = se->se_next;
1411 strcpy( sl->sl_mincsn.bv_val, se->se_csn.bv_val );
1412 sl->sl_mincsn.bv_len = se->se_csn.bv_len;
1416 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1420 /* Just set a flag if we found the matching entry */
1422 playlog_cb( Operation *op, SlapReply *rs )
1424 if ( rs->sr_type == REP_SEARCH ) {
1425 op->o_callback->sc_private = (void *)1;
1430 /* enter with sl->sl_mutex locked, release before returning */
1432 syncprov_playlog( Operation *op, SlapReply *rs, sessionlog *sl,
1433 sync_control *srs, BerVarray ctxcsn, int numcsns, int *sids )
1435 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1437 int i, j, ndel, num, nmods, mmods;
1438 char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
1440 struct berval delcsn[2];
1442 if ( !sl->sl_num ) {
1443 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1451 uuids = op->o_tmpalloc( (num+1) * sizeof( struct berval ) +
1452 num * UUID_LEN, op->o_tmpmemctx );
1453 uuids[0].bv_val = (char *)(uuids + num + 1);
1455 delcsn[0].bv_len = 0;
1456 delcsn[0].bv_val = cbuf;
1457 BER_BVZERO(&delcsn[1]);
1459 /* Make a copy of the relevant UUIDs. Put the Deletes up front
1460 * and everything else at the end. Do this first so we can
1461 * unlock the list mutex.
1463 Debug( LDAP_DEBUG_SYNC, "srs csn %s\n",
1464 srs->sr_state.ctxcsn[0].bv_val, 0, 0 );
1465 for ( se=sl->sl_head; se; se=se->se_next ) {
1467 Debug( LDAP_DEBUG_SYNC, "log csn %s\n", se->se_csn.bv_val, 0, 0 );
1469 for ( k=0; k<srs->sr_state.numcsns; k++ ) {
1470 if ( se->se_sid == srs->sr_state.sids[k] ) {
1471 ndel = ber_bvcmp( &se->se_csn, &srs->sr_state.ctxcsn[k] );
1476 Debug( LDAP_DEBUG_SYNC, "cmp %d, too old\n", ndel, 0, 0 );
1480 for ( k=0; k<numcsns; k++ ) {
1481 if ( se->se_sid == sids[k] ) {
1482 ndel = ber_bvcmp( &se->se_csn, &ctxcsn[k] );
1487 Debug( LDAP_DEBUG_SYNC, "cmp %d, too new\n", ndel, 0, 0 );
1490 if ( se->se_tag == LDAP_REQ_DELETE ) {
1493 AC_MEMCPY( cbuf, se->se_csn.bv_val, se->se_csn.bv_len );
1494 delcsn[0].bv_len = se->se_csn.bv_len;
1495 delcsn[0].bv_val[delcsn[0].bv_len] = '\0';
1500 uuids[j].bv_val = uuids[0].bv_val + (j * UUID_LEN);
1501 AC_MEMCPY(uuids[j].bv_val, se->se_uuid.bv_val, UUID_LEN);
1502 uuids[j].bv_len = UUID_LEN;
1504 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1508 /* Zero out unused slots */
1509 for ( i=ndel; i < num - nmods; i++ )
1510 uuids[i].bv_len = 0;
1512 /* Mods must be validated to see if they belong in this delete set.
1516 /* Strip any duplicates */
1517 for ( i=0; i<nmods; i++ ) {
1518 for ( j=0; j<ndel; j++ ) {
1519 if ( bvmatch( &uuids[j], &uuids[num - 1 - i] )) {
1520 uuids[num - 1 - i].bv_len = 0;
1525 if ( uuids[num - 1 - i].bv_len == 0 ) continue;
1526 for ( j=0; j<i; j++ ) {
1527 if ( bvmatch( &uuids[num - 1 - j], &uuids[num - 1 - i] )) {
1528 uuids[num - 1 - i].bv_len = 0;
1537 SlapReply frs = { REP_RESULT };
1540 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
1541 slap_callback cb = {0};
1545 fop.o_sync_mode = 0;
1546 fop.o_callback = &cb;
1547 fop.ors_limit = NULL;
1548 fop.ors_tlimit = SLAP_NO_LIMIT;
1549 fop.ors_attrs = slap_anlist_all_attributes;
1550 fop.ors_attrsonly = 0;
1551 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
1553 af.f_choice = LDAP_FILTER_AND;
1556 mf.f_choice = LDAP_FILTER_EQUALITY;
1558 mf.f_av_desc = slap_schema.si_ad_entryUUID;
1559 mf.f_next = fop.ors_filter;
1561 fop.ors_filter = ⁡
1563 cb.sc_response = playlog_cb;
1564 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
1566 for ( i=ndel; i<num; i++ ) {
1567 if ( uuids[i].bv_len == 0 ) continue;
1569 mf.f_av_value = uuids[i];
1570 cb.sc_private = NULL;
1572 frs.sr_nentries = 0;
1573 rc = fop.o_bd->be_search( &fop, &frs );
1575 /* If entry was not found, add to delete list */
1576 if ( !cb.sc_private ) {
1577 uuids[ndel++] = uuids[i];
1580 fop.o_bd->bd_info = (BackendInfo *)on;
1583 struct berval cookie;
1585 if ( delcsn[0].bv_len ) {
1586 slap_compose_sync_cookie( op, &cookie, delcsn, srs->sr_state.rid,
1587 srs->sr_state.sid );
1589 Debug( LDAP_DEBUG_SYNC, "syncprov_playlog: cookie=%s\n", cookie.bv_val, 0, 0 );
1592 uuids[ndel].bv_val = NULL;
1593 syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET,
1594 delcsn[0].bv_len ? &cookie : NULL, 0, uuids, 1 );
1595 if ( delcsn[0].bv_len ) {
1596 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
1599 op->o_tmpfree( uuids, op->o_tmpmemctx );
1603 syncprov_op_response( Operation *op, SlapReply *rs )
1605 opcookie *opc = op->o_callback->sc_private;
1606 slap_overinst *on = opc->son;
1607 syncprov_info_t *si = on->on_bi.bi_private;
1610 if ( rs->sr_err == LDAP_SUCCESS )
1612 struct berval maxcsn;
1613 char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
1614 int do_check = 0, have_psearches, foundit, csn_changed = 0;
1616 /* Update our context CSN */
1618 maxcsn.bv_val = cbuf;
1619 maxcsn.bv_len = sizeof(cbuf);
1620 ldap_pvt_thread_rdwr_wlock( &si->si_csn_rwlock );
1622 if ( op->o_dont_replicate &&
1623 op->orm_modlist->sml_op == LDAP_MOD_REPLACE &&
1624 op->orm_modlist->sml_desc == slap_schema.si_ad_contextCSN ) {
1625 /* Catch contextCSN updates from syncrepl. We have to look at
1626 * all the attribute values, as there may be more than one csn
1627 * that changed, and only one can be passed in the csn queue.
1629 Modifications *mod = op->orm_modlist;
1632 for ( i=0; i<mod->sml_numvals; i++ ) {
1633 sid = slap_parse_csn_sid( &mod->sml_values[i] );
1635 for ( j=0; j<si->si_numcsns; j++ ) {
1636 if ( sid == si->si_sids[j] ) {
1637 if ( ber_bvcmp( &mod->sml_values[i], &si->si_ctxcsn[j] ) > 0 ) {
1638 ber_bvreplace( &si->si_ctxcsn[j], &mod->sml_values[i] );
1645 if ( j == si->si_numcsns ) {
1646 value_add_one( &si->si_ctxcsn, &mod->sml_values[i] );
1648 si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
1650 si->si_sids[j] = sid;
1654 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1656 if ( csn_changed ) {
1657 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1658 have_psearches = ( si->si_ops != NULL );
1659 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1661 if ( have_psearches ) {
1662 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1663 if ( sm->sm_op->s_op->o_abandon )
1665 syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_NEW_COOKIE );
1669 return SLAP_CB_CONTINUE;
1672 slap_get_commit_csn( op, &maxcsn, &foundit );
1673 if ( BER_BVISEMPTY( &maxcsn ) && SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1674 /* syncrepl queues the CSN values in the db where
1675 * it is configured , not where the changes are made.
1676 * So look for a value in the glue db if we didn't
1677 * find any in this db.
1679 BackendDB *be = op->o_bd;
1680 op->o_bd = select_backend( &be->be_nsuffix[0], 1);
1681 maxcsn.bv_val = cbuf;
1682 maxcsn.bv_len = sizeof(cbuf);
1683 slap_get_commit_csn( op, &maxcsn, &foundit );
1686 if ( !BER_BVISEMPTY( &maxcsn ) ) {
1689 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1690 assert( !syn->ssyn_validate( syn, &maxcsn ));
1692 sid = slap_parse_csn_sid( &maxcsn );
1693 for ( i=0; i<si->si_numcsns; i++ ) {
1694 if ( sid == si->si_sids[i] ) {
1695 if ( ber_bvcmp( &maxcsn, &si->si_ctxcsn[i] ) > 0 ) {
1696 ber_bvreplace( &si->si_ctxcsn[i], &maxcsn );
1702 /* It's a new SID for us */
1703 if ( i == si->si_numcsns ) {
1704 value_add_one( &si->si_ctxcsn, &maxcsn );
1707 si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
1709 si->si_sids[i] = sid;
1711 } else if ( !foundit ) {
1712 /* internal ops that aren't meant to be replicated */
1713 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1714 return SLAP_CB_CONTINUE;
1717 /* Don't do any processing for consumer contextCSN updates */
1718 if ( op->o_dont_replicate ) {
1719 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1720 return SLAP_CB_CONTINUE;
1724 if ( si->si_chkops || si->si_chktime ) {
1725 if ( si->si_chkops && si->si_numops >= si->si_chkops ) {
1729 if ( si->si_chktime &&
1730 (op->o_time - si->si_chklast >= si->si_chktime )) {
1731 if ( si->si_chklast ) {
1733 si->si_chklast = op->o_time;
1739 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1742 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1743 syncprov_checkpoint( op, rs, on );
1744 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1747 /* only update consumer ctx if this is a newer csn */
1748 if ( csn_changed ) {
1749 opc->sctxcsn = maxcsn;
1752 /* Handle any persistent searches */
1753 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1754 have_psearches = ( si->si_ops != NULL );
1755 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1756 if ( have_psearches ) {
1759 case LDAP_REQ_MODIFY:
1760 case LDAP_REQ_MODRDN:
1761 case LDAP_REQ_EXTENDED:
1762 syncprov_matchops( op, opc, 0 );
1764 case LDAP_REQ_DELETE:
1765 /* for each match in opc->smatches:
1768 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1769 if ( sm->sm_op->s_op->o_abandon )
1771 syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_DELETE );
1777 /* Add any log records */
1778 if ( si->si_logs && op->o_tag != LDAP_REQ_ADD ) {
1779 syncprov_add_slog( op );
1783 return SLAP_CB_CONTINUE;
1786 /* We don't use a subentry to store the context CSN any more.
1787 * We expose the current context CSN as an operational attribute
1788 * of the suffix entry.
1791 syncprov_op_compare( Operation *op, SlapReply *rs )
1793 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1794 syncprov_info_t *si = on->on_bi.bi_private;
1795 int rc = SLAP_CB_CONTINUE;
1797 if ( dn_match( &op->o_req_ndn, op->o_bd->be_nsuffix ) &&
1798 op->oq_compare.rs_ava->aa_desc == slap_schema.si_ad_contextCSN )
1803 e.e_name = op->o_bd->be_suffix[0];
1804 e.e_nname = op->o_bd->be_nsuffix[0];
1807 a.a_desc = slap_schema.si_ad_contextCSN;
1809 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1811 a.a_vals = si->si_ctxcsn;
1812 a.a_nvals = a.a_vals;
1813 a.a_numvals = si->si_numcsns;
1815 rs->sr_err = access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc,
1816 &op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL );
1817 if ( ! rs->sr_err ) {
1818 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1819 goto return_results;
1822 if ( get_assert( op ) &&
1823 ( test_filter( op, &e, get_assertion( op ) ) != LDAP_COMPARE_TRUE ) )
1825 rs->sr_err = LDAP_ASSERTION_FAILED;
1826 goto return_results;
1830 rs->sr_err = LDAP_COMPARE_FALSE;
1832 if ( attr_valfind( &a,
1833 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
1834 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
1835 &op->oq_compare.rs_ava->aa_value, NULL, op->o_tmpmemctx ) == 0 )
1837 rs->sr_err = LDAP_COMPARE_TRUE;
1842 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1844 send_ldap_result( op, rs );
1846 if( rs->sr_err == LDAP_COMPARE_FALSE || rs->sr_err == LDAP_COMPARE_TRUE ) {
1847 rs->sr_err = LDAP_SUCCESS;
1856 syncprov_op_mod( Operation *op, SlapReply *rs )
1858 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1859 syncprov_info_t *si = on->on_bi.bi_private;
1862 int have_psearches, cbsize;
1864 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1865 have_psearches = ( si->si_ops != NULL );
1866 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1868 cbsize = sizeof(slap_callback) + sizeof(opcookie) +
1869 (have_psearches ? sizeof(modinst) : 0 );
1871 cb = op->o_tmpcalloc(1, cbsize, op->o_tmpmemctx);
1872 opc = (opcookie *)(cb+1);
1874 cb->sc_response = syncprov_op_response;
1875 cb->sc_cleanup = syncprov_op_cleanup;
1876 cb->sc_private = opc;
1877 cb->sc_next = op->o_callback;
1878 op->o_callback = cb;
1880 /* If there are active persistent searches, lock this operation.
1881 * See seqmod.c for the locking logic on its own.
1883 if ( have_psearches ) {
1884 modtarget *mt, mtdummy;
1887 mi = (modinst *)(opc+1);
1890 /* See if we're already modifying this entry... */
1892 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1893 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
1895 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1896 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1897 mt->mt_tail->mi_next = mi;
1899 /* wait for this op to get to head of list */
1900 while ( mt->mt_mods != mi ) {
1901 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1902 /* FIXME: if dynamic config can delete overlays or
1903 * databases we'll have to check for cleanup here.
1904 * Currently it's not an issue because there are
1905 * no dynamic config deletes...
1907 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
1908 ldap_pvt_thread_yield();
1909 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1911 /* clean up if the caller is giving up */
1912 if ( op->o_abandon ) {
1914 for ( m2 = mt->mt_mods; m2->mi_next != mi;
1916 m2->mi_next = mi->mi_next;
1917 if ( mt->mt_tail == mi ) mt->mt_tail = m2;
1918 op->o_tmpfree( cb, op->o_tmpmemctx );
1919 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1920 return SLAPD_ABANDON;
1923 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1925 /* Record that we're modifying this entry now */
1926 mt = ch_malloc( sizeof(modtarget) );
1929 mt->mt_op = mi->mi_op;
1930 ldap_pvt_thread_mutex_init( &mt->mt_mutex );
1931 avl_insert( &si->si_mods, mt, sp_avl_cmp, avl_dup_error );
1932 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1936 if (( have_psearches || si->si_logs ) && op->o_tag != LDAP_REQ_ADD )
1937 syncprov_matchops( op, opc, 1 );
1939 return SLAP_CB_CONTINUE;
1943 syncprov_op_extended( Operation *op, SlapReply *rs )
1945 if ( exop_is_write( op ))
1946 return syncprov_op_mod( op, rs );
1948 return SLAP_CB_CONTINUE;
1951 typedef struct searchstate {
1952 slap_overinst *ss_on;
1954 BerVarray ss_ctxcsn;
1957 #define SS_PRESENT 0x01
1958 #define SS_CHANGED 0x02
1963 syncprov_search_cleanup( Operation *op, SlapReply *rs )
1965 if ( rs->sr_ctrls ) {
1966 op->o_tmpfree( rs->sr_ctrls[0], op->o_tmpmemctx );
1967 op->o_tmpfree( rs->sr_ctrls, op->o_tmpmemctx );
1968 rs->sr_ctrls = NULL;
1973 typedef struct SyncOperationBuffer {
1977 AttributeName sob_extra; /* not always present */
1978 /* Further data allocated here */
1979 } SyncOperationBuffer;
1982 syncprov_detach_op( Operation *op, syncops *so, slap_overinst *on )
1984 SyncOperationBuffer *sopbuf2;
1989 GroupAssertion *g1, *g2;
1991 /* count the search attrs */
1992 for (i=0; op->ors_attrs && !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
1993 alen += op->ors_attrs[i].an_name.bv_len + 1;
1995 /* Make a new copy of the operation */
1996 size = offsetof( SyncOperationBuffer, sob_extra ) +
1997 (i ? ( (i+1) * sizeof(AttributeName) + alen) : 0) +
1998 op->o_req_dn.bv_len + 1 +
1999 op->o_req_ndn.bv_len + 1 +
2000 op->o_ndn.bv_len + 1 +
2001 so->s_filterstr.bv_len + 1;
2002 sopbuf2 = ch_calloc( 1, size );
2003 op2 = &sopbuf2->sob_op;
2004 op2->o_hdr = &sopbuf2->sob_hdr;
2005 LDAP_SLIST_FIRST(&op2->o_extra) = &sopbuf2->sob_oe;
2007 /* Copy the fields we care about explicitly, leave the rest alone */
2008 *op2->o_hdr = *op->o_hdr;
2009 op2->o_tag = op->o_tag;
2010 op2->o_time = op->o_time;
2011 op2->o_bd = on->on_info->oi_origdb;
2012 op2->o_request = op->o_request;
2013 op2->o_managedsait = op->o_managedsait;
2014 LDAP_SLIST_FIRST(&op2->o_extra)->oe_key = on;
2015 LDAP_SLIST_NEXT(LDAP_SLIST_FIRST(&op2->o_extra), oe_next) = NULL;
2017 ptr = (char *) sopbuf2 + offsetof( SyncOperationBuffer, sob_extra );
2019 op2->ors_attrs = (AttributeName *) ptr;
2020 ptr = (char *) &op2->ors_attrs[i+1];
2021 for (i=0; !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2022 op2->ors_attrs[i] = op->ors_attrs[i];
2023 op2->ors_attrs[i].an_name.bv_val = ptr;
2024 ptr = lutil_strcopy( ptr, op->ors_attrs[i].an_name.bv_val ) + 1;
2026 BER_BVZERO( &op2->ors_attrs[i].an_name );
2029 op2->o_authz = op->o_authz;
2030 op2->o_ndn.bv_val = ptr;
2031 ptr = lutil_strcopy(ptr, op->o_ndn.bv_val) + 1;
2032 op2->o_dn = op2->o_ndn;
2033 op2->o_req_dn.bv_len = op->o_req_dn.bv_len;
2034 op2->o_req_dn.bv_val = ptr;
2035 ptr = lutil_strcopy(ptr, op->o_req_dn.bv_val) + 1;
2036 op2->o_req_ndn.bv_len = op->o_req_ndn.bv_len;
2037 op2->o_req_ndn.bv_val = ptr;
2038 ptr = lutil_strcopy(ptr, op->o_req_ndn.bv_val) + 1;
2039 op2->ors_filterstr.bv_val = ptr;
2040 strcpy( ptr, so->s_filterstr.bv_val );
2041 op2->ors_filterstr.bv_len = so->s_filterstr.bv_len;
2043 /* Skip the AND/GE clause that we stuck on in front */
2044 if ( so->s_flags & PS_FIX_FILTER ) {
2045 op2->ors_filter = op->ors_filter->f_and->f_next;
2046 so->s_flags ^= PS_FIX_FILTER;
2048 op2->ors_filter = op->ors_filter;
2050 op2->ors_filter = filter_dup( op2->ors_filter, NULL );
2053 /* Copy any cached group ACLs individually */
2054 op2->o_groups = NULL;
2055 for ( g1=op->o_groups; g1; g1=g1->ga_next ) {
2056 g2 = ch_malloc( sizeof(GroupAssertion) + g1->ga_len );
2058 strcpy( g2->ga_ndn, g1->ga_ndn );
2059 g2->ga_next = op2->o_groups;
2062 /* Don't allow any further group caching */
2063 op2->o_do_not_cache = 1;
2065 /* Add op2 to conn so abandon will find us */
2066 op->o_conn->c_n_ops_executing++;
2067 op->o_conn->c_n_ops_completed--;
2068 LDAP_STAILQ_INSERT_TAIL( &op->o_conn->c_ops, op2, o_next );
2069 so->s_flags |= PS_IS_DETACHED;
2071 /* Prevent anyone else from trying to send a result for this op */
2076 syncprov_search_response( Operation *op, SlapReply *rs )
2078 searchstate *ss = op->o_callback->sc_private;
2079 slap_overinst *on = ss->ss_on;
2080 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2081 sync_control *srs = op->o_controls[slap_cids.sc_LDAPsync];
2083 if ( rs->sr_type == REP_SEARCH || rs->sr_type == REP_SEARCHREF ) {
2085 /* If we got a referral without a referral object, there's
2086 * something missing that we cannot replicate. Just ignore it.
2087 * The consumer will abort because we didn't send the expected
2090 if ( !rs->sr_entry ) {
2091 assert( rs->sr_entry != NULL );
2092 Debug( LDAP_DEBUG_ANY, "bogus referral in context\n",0,0,0 );
2093 return SLAP_CB_CONTINUE;
2095 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryCSN );
2096 if ( a == NULL && rs->sr_operational_attrs != NULL ) {
2097 a = attr_find( rs->sr_operational_attrs, slap_schema.si_ad_entryCSN );
2101 sid = slap_parse_csn_sid( &a->a_nvals[0] );
2103 /* Don't send changed entries back to the originator */
2104 if ( sid == srs->sr_state.sid && srs->sr_state.numcsns ) {
2105 Debug( LDAP_DEBUG_SYNC,
2106 "Entry %s changed by peer, ignored\n",
2107 rs->sr_entry->e_name.bv_val, 0, 0 );
2108 return LDAP_SUCCESS;
2111 /* If not a persistent search */
2113 /* Make sure entry is less than the snapshot'd contextCSN */
2114 for ( i=0; i<ss->ss_numcsns; i++ ) {
2115 if ( sid == ss->ss_sids[i] && ber_bvcmp( &a->a_nvals[0],
2116 &ss->ss_ctxcsn[i] ) > 0 ) {
2117 Debug( LDAP_DEBUG_SYNC,
2118 "Entry %s CSN %s greater than snapshot %s\n",
2119 rs->sr_entry->e_name.bv_val,
2120 a->a_nvals[0].bv_val,
2121 ss->ss_ctxcsn[i].bv_val );
2122 return LDAP_SUCCESS;
2127 /* Don't send old entries twice */
2128 if ( srs->sr_state.ctxcsn ) {
2129 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2130 if ( sid == srs->sr_state.sids[i] &&
2131 ber_bvcmp( &a->a_nvals[0],
2132 &srs->sr_state.ctxcsn[i] )<= 0 ) {
2133 Debug( LDAP_DEBUG_SYNC,
2134 "Entry %s CSN %s older or equal to ctx %s\n",
2135 rs->sr_entry->e_name.bv_val,
2136 a->a_nvals[0].bv_val,
2137 srs->sr_state.ctxcsn[i].bv_val );
2138 return LDAP_SUCCESS;
2143 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2145 rs->sr_ctrls[1] = NULL;
2146 /* If we're in delta-sync mode, always send a cookie */
2147 if ( si->si_nopres && si->si_usehint && a ) {
2148 struct berval cookie;
2149 slap_compose_sync_cookie( op, &cookie, a->a_nvals, srs->sr_state.rid, srs->sr_state.sid );
2150 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2151 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 1, &cookie );
2153 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2154 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 0, NULL );
2156 } else if ( rs->sr_type == REP_RESULT && rs->sr_err == LDAP_SUCCESS ) {
2157 struct berval cookie;
2159 if ( ss->ss_flags & SS_CHANGED ) {
2160 slap_compose_sync_cookie( op, &cookie, ss->ss_ctxcsn,
2161 srs->sr_state.rid, srs->sr_state.sid );
2163 Debug( LDAP_DEBUG_SYNC, "syncprov_search_response: cookie=%s\n", cookie.bv_val, 0, 0 );
2166 /* Is this a regular refresh?
2167 * Note: refresh never gets here if there were no changes
2170 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2172 rs->sr_ctrls[1] = NULL;
2173 rs->sr_err = syncprov_done_ctrl( op, rs, rs->sr_ctrls,
2174 0, 1, &cookie, ( ss->ss_flags & SS_PRESENT ) ? LDAP_SYNC_REFRESH_PRESENTS :
2175 LDAP_SYNC_REFRESH_DELETES );
2176 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2178 /* It's RefreshAndPersist, transition to Persist phase */
2179 syncprov_sendinfo( op, rs, ( ss->ss_flags & SS_PRESENT ) ?
2180 LDAP_TAG_SYNC_REFRESH_PRESENT : LDAP_TAG_SYNC_REFRESH_DELETE,
2181 ( ss->ss_flags & SS_CHANGED ) ? &cookie : NULL,
2183 if ( ss->ss_flags & SS_CHANGED )
2184 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2186 /* Detach this Op from frontend control */
2187 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
2189 /* But not if this connection was closed along the way */
2190 if ( op->o_abandon ) {
2191 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2192 /* syncprov_ab_cleanup will free this syncop */
2193 return SLAPD_ABANDON;
2196 ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex );
2197 /* Turn off the refreshing flag */
2198 ss->ss_so->s_flags ^= PS_IS_REFRESHING;
2200 syncprov_detach_op( op, ss->ss_so, on );
2202 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2204 /* If there are queued responses, fire them off */
2205 if ( ss->ss_so->s_res )
2206 syncprov_qstart( ss->ss_so );
2207 ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
2210 return LDAP_SUCCESS;
2214 return SLAP_CB_CONTINUE;
2218 syncprov_op_search( Operation *op, SlapReply *rs )
2220 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2221 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2223 int gotstate = 0, changed = 0, do_present = 0;
2224 syncops *sop = NULL;
2228 int i, *sids, numcsns;
2229 struct berval mincsn;
2231 if ( !(op->o_sync_mode & SLAP_SYNC_REFRESH) ) return SLAP_CB_CONTINUE;
2233 if ( op->ors_deref & LDAP_DEREF_SEARCHING ) {
2234 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR, "illegal value for derefAliases" );
2238 srs = op->o_controls[slap_cids.sc_LDAPsync];
2240 /* If this is a persistent search, set it up right away */
2241 if ( op->o_sync_mode & SLAP_SYNC_PERSIST ) {
2251 so.s_flags = PS_IS_REFRESHING | PS_FIND_BASE;
2252 /* syncprov_findbase expects to be called as a callback... */
2253 sc.sc_private = &opc;
2255 ldap_pvt_thread_mutex_init( &so.s_mutex );
2256 cb = op->o_callback;
2257 op->o_callback = ≻
2258 rs->sr_err = syncprov_findbase( op, &fc );
2259 op->o_callback = cb;
2260 ldap_pvt_thread_mutex_destroy( &so.s_mutex );
2262 if ( rs->sr_err != LDAP_SUCCESS ) {
2263 send_ldap_result( op, rs );
2266 sop = ch_malloc( sizeof( syncops ));
2268 ldap_pvt_thread_mutex_init( &sop->s_mutex );
2269 sop->s_rid = srs->sr_state.rid;
2270 sop->s_sid = srs->sr_state.sid;
2273 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2274 sop->s_next = si->si_ops;
2276 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2279 /* snapshot the ctxcsn */
2280 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2281 numcsns = si->si_numcsns;
2283 ber_bvarray_dup_x( &ctxcsn, si->si_ctxcsn, op->o_tmpmemctx );
2284 sids = op->o_tmpalloc( numcsns * sizeof(int), op->o_tmpmemctx );
2285 for ( i=0; i<numcsns; i++ )
2286 sids[i] = si->si_sids[i];
2291 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2293 /* If we have a cookie, handle the PRESENT lookups */
2294 if ( srs->sr_state.ctxcsn ) {
2298 /* If we don't have any CSN of our own yet, pretend nothing
2304 if ( !si->si_nopres )
2305 do_present = SS_PRESENT;
2307 /* If there are SIDs we don't recognize in the cookie, drop them */
2308 for (i=0; i<srs->sr_state.numcsns; ) {
2309 for (j=0; j<numcsns; j++) {
2310 if ( srs->sr_state.sids[i] == sids[j] ) {
2315 if ( j == numcsns ) {
2316 struct berval tmp = srs->sr_state.ctxcsn[i];
2317 j = srs->sr_state.numcsns - 1;
2318 srs->sr_state.ctxcsn[i] = srs->sr_state.ctxcsn[j];
2320 srs->sr_state.ctxcsn[j] = tmp;
2321 srs->sr_state.numcsns = j;
2322 srs->sr_state.sids[i] = srs->sr_state.sids[j];
2328 /* Find the smallest CSN */
2329 mincsn = srs->sr_state.ctxcsn[0];
2330 for ( i=1; i<srs->sr_state.numcsns; i++ ) {
2331 if ( ber_bvcmp( &mincsn, &srs->sr_state.ctxcsn[i] ) > 0 )
2332 mincsn = srs->sr_state.ctxcsn[i];
2335 /* If nothing has changed, shortcut it */
2336 if ( srs->sr_state.numcsns == numcsns ) {
2338 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2339 for ( j=0; j<numcsns; j++ ) {
2340 if ( srs->sr_state.sids[i] != sids[j] )
2342 if ( !bvmatch( &srs->sr_state.ctxcsn[i], &ctxcsn[j] ))
2343 changed = SS_CHANGED;
2351 no_change: if ( !(op->o_sync_mode & SLAP_SYNC_PERSIST) ) {
2352 LDAPControl *ctrls[2];
2356 syncprov_done_ctrl( op, rs, ctrls, 0, 0,
2357 NULL, LDAP_SYNC_REFRESH_DELETES );
2358 rs->sr_ctrls = ctrls;
2359 rs->sr_err = LDAP_SUCCESS;
2360 send_ldap_result( op, rs );
2361 rs->sr_ctrls = NULL;
2367 /* consumer doesn't have the right number of CSNs */
2368 changed = SS_CHANGED;
2370 /* Do we have a sessionlog for this search? */
2373 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
2374 /* Are there any log entries, and is the consumer state
2375 * present in the session log?
2377 if ( sl->sl_num > 0 && ber_bvcmp( &mincsn, &sl->sl_mincsn ) >= 0 ) {
2379 /* mutex is unlocked in playlog */
2380 syncprov_playlog( op, rs, sl, srs, ctxcsn, numcsns, sids );
2382 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
2385 /* Is the CSN still present in the database? */
2386 if ( syncprov_findcsn( op, FIND_CSN ) != LDAP_SUCCESS ) {
2387 /* No, so a reload is required */
2388 /* the 2.2 consumer doesn't send this hint */
2389 if ( si->si_usehint && srs->sr_rhint == 0 ) {
2391 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2393 op->o_tmpfree( sids, op->o_tmpmemctx );
2394 send_ldap_error( op, rs, LDAP_SYNC_REFRESH_REQUIRED, "sync cookie is stale" );
2397 if ( srs->sr_state.ctxcsn ) {
2398 ber_bvarray_free_x( srs->sr_state.ctxcsn, op->o_tmpmemctx );
2399 srs->sr_state.ctxcsn = NULL;
2401 if ( srs->sr_state.sids ) {
2402 slap_sl_free( srs->sr_state.sids, op->o_tmpmemctx );
2403 srs->sr_state.sids = NULL;
2405 srs->sr_state.numcsns = 0;
2408 /* If changed and doing Present lookup, send Present UUIDs */
2409 if ( do_present && syncprov_findcsn( op, FIND_PRESENT ) !=
2412 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2414 op->o_tmpfree( sids, op->o_tmpmemctx );
2415 send_ldap_result( op, rs );
2420 /* No consumer state, assume something has changed */
2421 changed = SS_CHANGED;
2425 /* Append CSN range to search filter, save original filter
2426 * for persistent search evaluation
2429 sop->s_filterstr= op->ors_filterstr;
2432 /* If something changed, find the changes */
2433 if ( gotstate && changed ) {
2434 Filter *fand, *fava;
2436 fand = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2437 fand->f_choice = LDAP_FILTER_AND;
2438 fand->f_next = NULL;
2439 fava = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2441 fava->f_choice = LDAP_FILTER_GE;
2442 fava->f_ava = op->o_tmpalloc( sizeof(AttributeAssertion), op->o_tmpmemctx );
2443 fava->f_ava->aa_desc = slap_schema.si_ad_entryCSN;
2444 #ifdef LDAP_COMP_MATCH
2445 fava->f_ava->aa_cf = NULL;
2447 ber_dupbv_x( &fava->f_ava->aa_value, &mincsn, op->o_tmpmemctx );
2448 fava->f_next = op->ors_filter;
2449 op->ors_filter = fand;
2450 filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2452 sop->s_flags |= PS_FIX_FILTER;
2455 /* Let our callback add needed info to returned entries */
2456 cb = op->o_tmpcalloc(1, sizeof(slap_callback)+sizeof(searchstate), op->o_tmpmemctx);
2457 ss = (searchstate *)(cb+1);
2460 ss->ss_flags = do_present | changed;
2461 ss->ss_ctxcsn = ctxcsn;
2462 ss->ss_numcsns = numcsns;
2464 cb->sc_response = syncprov_search_response;
2465 cb->sc_cleanup = syncprov_search_cleanup;
2466 cb->sc_private = ss;
2467 cb->sc_next = op->o_callback;
2468 op->o_callback = cb;
2470 /* If this is a persistent search and no changes were reported during
2471 * the refresh phase, just invoke the response callback to transition
2472 * us into persist phase
2475 rs->sr_err = LDAP_SUCCESS;
2476 rs->sr_nentries = 0;
2477 send_ldap_result( op, rs );
2480 return SLAP_CB_CONTINUE;
2484 syncprov_operational(
2488 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2489 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2491 /* This prevents generating unnecessarily; frontend will strip
2492 * any statically stored copy.
2494 if ( op->o_sync != SLAP_CONTROL_NONE )
2495 return SLAP_CB_CONTINUE;
2497 if ( rs->sr_entry &&
2498 dn_match( &rs->sr_entry->e_nname, op->o_bd->be_nsuffix )) {
2500 if ( SLAP_OPATTRS( rs->sr_attr_flags ) ||
2501 ad_inlist( slap_schema.si_ad_contextCSN, rs->sr_attrs )) {
2502 Attribute *a, **ap = NULL;
2504 for ( a=rs->sr_entry->e_attrs; a; a=a->a_next ) {
2505 if ( a->a_desc == slap_schema.si_ad_contextCSN )
2509 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2510 if ( si->si_ctxcsn ) {
2512 for ( ap = &rs->sr_operational_attrs; *ap;
2513 ap=&(*ap)->a_next );
2515 a = attr_alloc( slap_schema.si_ad_contextCSN );
2520 if ( !(rs->sr_flags & REP_ENTRY_MODIFIABLE) ) {
2521 Entry *e = entry_dup( rs->sr_entry );
2522 if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
2523 overlay_entry_release_ov( op, rs->sr_entry, 0, on );
2524 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
2525 } else if ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) {
2526 entry_free( rs->sr_entry );
2530 REP_ENTRY_MODIFIABLE|REP_ENTRY_MUSTBEFREED;
2531 a = attr_find( rs->sr_entry->e_attrs,
2532 slap_schema.si_ad_contextCSN );
2534 if ( a->a_nvals != a->a_vals ) {
2535 ber_bvarray_free( a->a_nvals );
2538 ber_bvarray_free( a->a_vals );
2542 attr_valadd( a, si->si_ctxcsn, si->si_ctxcsn, si->si_numcsns );
2544 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2547 return SLAP_CB_CONTINUE;
2557 static ConfigDriver sp_cf_gen;
2559 static ConfigTable spcfg[] = {
2560 { "syncprov-checkpoint", "ops> <minutes", 3, 3, 0, ARG_MAGIC|SP_CHKPT,
2561 sp_cf_gen, "( OLcfgOvAt:1.1 NAME 'olcSpCheckpoint' "
2562 "DESC 'ContextCSN checkpoint interval in ops and minutes' "
2563 "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
2564 { "syncprov-sessionlog", "ops", 2, 2, 0, ARG_INT|ARG_MAGIC|SP_SESSL,
2565 sp_cf_gen, "( OLcfgOvAt:1.2 NAME 'olcSpSessionlog' "
2566 "DESC 'Session log size in ops' "
2567 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
2568 { "syncprov-nopresent", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_NOPRES,
2569 sp_cf_gen, "( OLcfgOvAt:1.3 NAME 'olcSpNoPresent' "
2570 "DESC 'Omit Present phase processing' "
2571 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2572 { "syncprov-reloadhint", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_USEHINT,
2573 sp_cf_gen, "( OLcfgOvAt:1.4 NAME 'olcSpReloadHint' "
2574 "DESC 'Observe Reload Hint in Request control' "
2575 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2576 { NULL, NULL, 0, 0, 0, ARG_IGNORED }
2579 static ConfigOCs spocs[] = {
2580 { "( OLcfgOvOc:1.1 "
2581 "NAME 'olcSyncProvConfig' "
2582 "DESC 'SyncRepl Provider configuration' "
2583 "SUP olcOverlayConfig "
2584 "MAY ( olcSpCheckpoint "
2585 "$ olcSpSessionlog "
2587 "$ olcSpReloadHint "
2589 Cft_Overlay, spcfg },
2594 sp_cf_gen(ConfigArgs *c)
2596 slap_overinst *on = (slap_overinst *)c->bi;
2597 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2600 if ( c->op == SLAP_CONFIG_EMIT ) {
2601 switch ( c->type ) {
2603 if ( si->si_chkops || si->si_chktime ) {
2605 bv.bv_len = snprintf( c->cr_msg, sizeof( c->cr_msg ),
2606 "%d %d", si->si_chkops, si->si_chktime );
2607 if ( bv.bv_len >= sizeof( c->cr_msg ) ) {
2610 bv.bv_val = c->cr_msg;
2611 value_add_one( &c->rvalue_vals, &bv );
2618 if ( si->si_logs ) {
2619 c->value_int = si->si_logs->sl_size;
2625 if ( si->si_nopres ) {
2632 if ( si->si_usehint ) {
2640 } else if ( c->op == LDAP_MOD_DELETE ) {
2641 switch ( c->type ) {
2648 si->si_logs->sl_size = 0;
2650 rc = LDAP_NO_SUCH_ATTRIBUTE;
2653 if ( si->si_nopres )
2656 rc = LDAP_NO_SUCH_ATTRIBUTE;
2659 if ( si->si_usehint )
2662 rc = LDAP_NO_SUCH_ATTRIBUTE;
2667 switch ( c->type ) {
2669 if ( lutil_atoi( &si->si_chkops, c->argv[1] ) != 0 ) {
2670 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint ops # \"%s\"",
2671 c->argv[0], c->argv[1] );
2672 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2673 "%s: %s\n", c->log, c->cr_msg, 0 );
2674 return ARG_BAD_CONF;
2676 if ( si->si_chkops <= 0 ) {
2677 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint ops # \"%d\"",
2678 c->argv[0], si->si_chkops );
2679 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2680 "%s: %s\n", c->log, c->cr_msg, 0 );
2681 return ARG_BAD_CONF;
2683 if ( lutil_atoi( &si->si_chktime, c->argv[2] ) != 0 ) {
2684 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint time \"%s\"",
2685 c->argv[0], c->argv[1] );
2686 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2687 "%s: %s\n", c->log, c->cr_msg, 0 );
2688 return ARG_BAD_CONF;
2690 if ( si->si_chktime <= 0 ) {
2691 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint time \"%d\"",
2692 c->argv[0], si->si_chkops );
2693 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2694 "%s: %s\n", c->log, c->cr_msg, 0 );
2695 return ARG_BAD_CONF;
2697 si->si_chktime *= 60;
2701 int size = c->value_int;
2704 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s size %d is negative",
2706 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2707 "%s: %s\n", c->log, c->cr_msg, 0 );
2708 return ARG_BAD_CONF;
2712 sl = ch_malloc( sizeof( sessionlog ) + LDAP_LUTIL_CSNSTR_BUFSIZE );
2713 sl->sl_mincsn.bv_val = (char *)(sl+1);
2714 sl->sl_mincsn.bv_len = 0;
2716 sl->sl_head = sl->sl_tail = NULL;
2717 ldap_pvt_thread_mutex_init( &sl->sl_mutex );
2724 si->si_nopres = c->value_int;
2727 si->si_usehint = c->value_int;
2733 /* ITS#3456 we cannot run this search on the main thread, must use a
2734 * child thread in order to insure we have a big enough stack.
2741 syncprov_findcsn( ptr, FIND_MAXCSN );
2745 /* Read any existing contextCSN from the underlying db.
2746 * Then search for any entries newer than that. If no value exists,
2747 * just generate it. Cache whatever result.
2755 slap_overinst *on = (slap_overinst *) be->bd_info;
2756 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2758 Connection conn = { 0 };
2759 OperationBuffer opbuf;
2764 void *thrctx = NULL;
2766 if ( !SLAP_LASTMOD( be )) {
2767 Debug( LDAP_DEBUG_ANY,
2768 "syncprov_db_open: invalid config, lastmod must be enabled\n", 0, 0, 0 );
2772 if ( slapMode & SLAP_TOOL_MODE ) {
2776 rc = overlay_register_control( be, LDAP_CONTROL_SYNC );
2781 thrctx = ldap_pvt_thread_pool_context();
2782 connection_fake_init( &conn, &opbuf, thrctx );
2785 op->o_dn = be->be_rootdn;
2786 op->o_ndn = be->be_rootndn;
2788 rc = overlay_entry_get_ov( op, be->be_nsuffix, NULL,
2789 slap_schema.si_ad_contextCSN, 0, &e, on );
2792 ldap_pvt_thread_t tid;
2794 a = attr_find( e->e_attrs, slap_schema.si_ad_contextCSN );
2796 ber_bvarray_dup_x( &si->si_ctxcsn, a->a_vals, NULL );
2797 si->si_numcsns = a->a_numvals;
2798 si->si_sids = slap_parse_csn_sids( si->si_ctxcsn, a->a_numvals, NULL );
2800 overlay_entry_release_ov( op, e, 0, on );
2801 if ( si->si_ctxcsn && !SLAP_DBCLEAN( be )) {
2802 op->o_req_dn = be->be_suffix[0];
2803 op->o_req_ndn = be->be_nsuffix[0];
2804 op->ors_scope = LDAP_SCOPE_SUBTREE;
2805 ldap_pvt_thread_create( &tid, 0, syncprov_db_otask, op );
2806 ldap_pvt_thread_join( tid, NULL );
2810 /* Didn't find a contextCSN, should we generate one? */
2811 if ( !si->si_ctxcsn ) {
2812 char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
2815 if ( SLAP_SYNC_SHADOW( op->o_bd )) {
2816 /* If we're also a consumer, then don't generate anything.
2817 * Wait for our provider to send it to us, or for a local
2818 * modify if we have multimaster.
2822 csn.bv_val = csnbuf;
2823 csn.bv_len = sizeof( csnbuf );
2824 slap_get_csn( op, &csn, 0 );
2825 value_add_one( &si->si_ctxcsn, &csn );
2827 si->si_sids = ch_malloc( sizeof(int) );
2828 si->si_sids[0] = slap_serverID;
2830 /* make sure we do a checkpoint on close */
2835 op->o_bd->bd_info = (BackendInfo *)on;
2839 /* Write the current contextCSN into the underlying db.
2847 slap_overinst *on = (slap_overinst *) be->bd_info;
2848 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2850 if ( slapMode & SLAP_TOOL_MODE ) {
2853 if ( si->si_numops ) {
2854 Connection conn = {0};
2855 OperationBuffer opbuf;
2857 SlapReply rs = {REP_RESULT};
2860 thrctx = ldap_pvt_thread_pool_context();
2861 connection_fake_init( &conn, &opbuf, thrctx );
2864 op->o_dn = be->be_rootdn;
2865 op->o_ndn = be->be_rootndn;
2866 syncprov_checkpoint( op, &rs, on );
2878 slap_overinst *on = (slap_overinst *)be->bd_info;
2879 syncprov_info_t *si;
2881 if ( SLAP_ISGLOBALOVERLAY( be ) ) {
2882 Debug( LDAP_DEBUG_ANY,
2883 "syncprov must be instantiated within a database.\n",
2888 si = ch_calloc(1, sizeof(syncprov_info_t));
2889 on->on_bi.bi_private = si;
2890 ldap_pvt_thread_rdwr_init( &si->si_csn_rwlock );
2891 ldap_pvt_thread_mutex_init( &si->si_ops_mutex );
2892 ldap_pvt_thread_mutex_init( &si->si_mods_mutex );
2894 csn_anlist[0].an_desc = slap_schema.si_ad_entryCSN;
2895 csn_anlist[0].an_name = slap_schema.si_ad_entryCSN->ad_cname;
2896 csn_anlist[1].an_desc = slap_schema.si_ad_entryUUID;
2897 csn_anlist[1].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2899 uuid_anlist[0].an_desc = slap_schema.si_ad_entryUUID;
2900 uuid_anlist[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2906 syncprov_db_destroy(
2911 slap_overinst *on = (slap_overinst *)be->bd_info;
2912 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2915 if ( si->si_logs ) {
2916 slog_entry *se = si->si_logs->sl_head;
2919 slog_entry *se_next = se->se_next;
2924 ch_free( si->si_logs );
2926 if ( si->si_ctxcsn )
2927 ber_bvarray_free( si->si_ctxcsn );
2929 ch_free( si->si_sids );
2930 ldap_pvt_thread_mutex_destroy( &si->si_mods_mutex );
2931 ldap_pvt_thread_mutex_destroy( &si->si_ops_mutex );
2932 ldap_pvt_thread_rdwr_destroy( &si->si_csn_rwlock );
2939 static int syncprov_parseCtrl (
2945 BerElementBuffer berbuf;
2946 BerElement *ber = (BerElement *)&berbuf;
2949 struct berval cookie = BER_BVNULL;
2953 if ( op->o_sync != SLAP_CONTROL_NONE ) {
2954 rs->sr_text = "Sync control specified multiple times";
2955 return LDAP_PROTOCOL_ERROR;
2958 if ( op->o_pagedresults != SLAP_CONTROL_NONE ) {
2959 rs->sr_text = "Sync control specified with pagedResults control";
2960 return LDAP_PROTOCOL_ERROR;
2963 if ( BER_BVISNULL( &ctrl->ldctl_value ) ) {
2964 rs->sr_text = "Sync control value is absent";
2965 return LDAP_PROTOCOL_ERROR;
2968 if ( BER_BVISEMPTY( &ctrl->ldctl_value ) ) {
2969 rs->sr_text = "Sync control value is empty";
2970 return LDAP_PROTOCOL_ERROR;
2973 /* Parse the control value
2974 * syncRequestValue ::= SEQUENCE {
2979 * refreshAndPersist (3)
2981 * cookie syncCookie OPTIONAL
2985 ber_init2( ber, &ctrl->ldctl_value, 0 );
2987 if ( (tag = ber_scanf( ber, "{i" /*}*/, &mode )) == LBER_ERROR ) {
2988 rs->sr_text = "Sync control : mode decoding error";
2989 return LDAP_PROTOCOL_ERROR;
2993 case LDAP_SYNC_REFRESH_ONLY:
2994 mode = SLAP_SYNC_REFRESH;
2996 case LDAP_SYNC_REFRESH_AND_PERSIST:
2997 mode = SLAP_SYNC_REFRESH_AND_PERSIST;
3000 rs->sr_text = "Sync control : unknown update mode";
3001 return LDAP_PROTOCOL_ERROR;
3004 tag = ber_peek_tag( ber, &len );
3006 if ( tag == LDAP_TAG_SYNC_COOKIE ) {
3007 if (( ber_scanf( ber, /*{*/ "m", &cookie )) == LBER_ERROR ) {
3008 rs->sr_text = "Sync control : cookie decoding error";
3009 return LDAP_PROTOCOL_ERROR;
3011 tag = ber_peek_tag( ber, &len );
3013 if ( tag == LDAP_TAG_RELOAD_HINT ) {
3014 if (( ber_scanf( ber, /*{*/ "b", &rhint )) == LBER_ERROR ) {
3015 rs->sr_text = "Sync control : rhint decoding error";
3016 return LDAP_PROTOCOL_ERROR;
3019 if (( ber_scanf( ber, /*{*/ "}")) == LBER_ERROR ) {
3020 rs->sr_text = "Sync control : decoding error";
3021 return LDAP_PROTOCOL_ERROR;
3023 sr = op->o_tmpcalloc( 1, sizeof(struct sync_control), op->o_tmpmemctx );
3024 sr->sr_rhint = rhint;
3025 if (!BER_BVISNULL(&cookie)) {
3026 ber_dupbv_x( &sr->sr_state.octet_str, &cookie, op->o_tmpmemctx );
3027 /* If parse fails, pretend no cookie was sent */
3028 if ( slap_parse_sync_cookie( &sr->sr_state, op->o_tmpmemctx ) ||
3029 sr->sr_state.rid == -1 ) {
3030 if ( sr->sr_state.ctxcsn ) {
3031 ber_bvarray_free_x( sr->sr_state.ctxcsn, op->o_tmpmemctx );
3032 sr->sr_state.ctxcsn = NULL;
3034 sr->sr_state.numcsns = 0;
3038 op->o_controls[slap_cids.sc_LDAPsync] = sr;
3040 op->o_sync = ctrl->ldctl_iscritical
3041 ? SLAP_CONTROL_CRITICAL
3042 : SLAP_CONTROL_NONCRITICAL;
3044 op->o_sync_mode |= mode; /* o_sync_mode shares o_sync */
3046 return LDAP_SUCCESS;
3049 /* This overlay is set up for dynamic loading via moduleload. For static
3050 * configuration, you'll need to arrange for the slap_overinst to be
3051 * initialized and registered by some other function inside slapd.
3054 static slap_overinst syncprov;
3057 syncprov_initialize()
3061 rc = register_supported_control( LDAP_CONTROL_SYNC,
3062 SLAP_CTRL_SEARCH, NULL,
3063 syncprov_parseCtrl, &slap_cids.sc_LDAPsync );
3064 if ( rc != LDAP_SUCCESS ) {
3065 Debug( LDAP_DEBUG_ANY,
3066 "syncprov_init: Failed to register control %d\n", rc, 0, 0 );
3070 syncprov.on_bi.bi_type = "syncprov";
3071 syncprov.on_bi.bi_db_init = syncprov_db_init;
3072 syncprov.on_bi.bi_db_destroy = syncprov_db_destroy;
3073 syncprov.on_bi.bi_db_open = syncprov_db_open;
3074 syncprov.on_bi.bi_db_close = syncprov_db_close;
3076 syncprov.on_bi.bi_op_abandon = syncprov_op_abandon;
3077 syncprov.on_bi.bi_op_cancel = syncprov_op_abandon;
3079 syncprov.on_bi.bi_op_add = syncprov_op_mod;
3080 syncprov.on_bi.bi_op_compare = syncprov_op_compare;
3081 syncprov.on_bi.bi_op_delete = syncprov_op_mod;
3082 syncprov.on_bi.bi_op_modify = syncprov_op_mod;
3083 syncprov.on_bi.bi_op_modrdn = syncprov_op_mod;
3084 syncprov.on_bi.bi_op_search = syncprov_op_search;
3085 syncprov.on_bi.bi_extended = syncprov_op_extended;
3086 syncprov.on_bi.bi_operational = syncprov_operational;
3088 syncprov.on_bi.bi_cf_ocs = spocs;
3090 generic_filter.f_desc = slap_schema.si_ad_objectClass;
3092 rc = config_register_schema( spcfg, spocs );
3093 if ( rc ) return rc;
3095 return overlay_register( &syncprov );
3098 #if SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC
3100 init_module( int argc, char *argv[] )
3102 return syncprov_initialize();
3104 #endif /* SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC */
3106 #endif /* defined(SLAPD_OVER_SYNCPROV) */