2 /* syncprov.c - syncrepl provider */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2004-2007 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_mutex_t si_csn_mutex;
135 ldap_pvt_thread_mutex_t si_ops_mutex;
136 ldap_pvt_thread_mutex_t si_mods_mutex;
139 typedef struct opcookie {
141 syncmatches *smatches;
142 struct berval sdn; /* DN of entry, for deletes */
144 struct berval suuid; /* UUID of entry */
145 struct berval sctxcsn;
146 int sreference; /* Is the entry a reference? */
149 typedef struct fbase_cookie {
150 struct berval *fdn; /* DN of a modified entry, for scope testing */
151 syncops *fss; /* persistent search we're testing against */
152 int fbase; /* if TRUE we found the search base and it's still valid */
153 int fscope; /* if TRUE then fdn is within the psearch scope */
156 static AttributeName csn_anlist[3];
157 static AttributeName uuid_anlist[2];
159 /* Build a LDAPsync intermediate state control */
165 int entry_sync_state,
169 struct berval *cookie )
174 BerElementBuffer berbuf;
175 BerElement *ber = (BerElement *)&berbuf;
177 struct berval entryuuid_bv = BER_BVNULL;
179 ber_init2( ber, 0, LBER_USE_DER );
180 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
182 ctrls[num_ctrls] = op->o_tmpalloc( sizeof ( LDAPControl ), op->o_tmpmemctx );
184 for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
185 AttributeDescription *desc = a->a_desc;
186 if ( desc == slap_schema.si_ad_entryUUID ) {
187 entryuuid_bv = a->a_nvals[0];
192 /* FIXME: what if entryuuid is NULL or empty ? */
194 if ( send_cookie && cookie ) {
195 ber_printf( ber, "{eOON}",
196 entry_sync_state, &entryuuid_bv, cookie );
198 ber_printf( ber, "{eON}",
199 entry_sync_state, &entryuuid_bv );
202 ctrls[num_ctrls]->ldctl_oid = LDAP_CONTROL_SYNC_STATE;
203 ctrls[num_ctrls]->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
204 ret = ber_flatten2( ber, &ctrls[num_ctrls]->ldctl_value, 1 );
209 Debug( LDAP_DEBUG_TRACE,
210 "slap_build_sync_ctrl: ber_flatten2 failed\n",
212 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
219 /* Build a LDAPsync final state control */
227 struct berval *cookie,
231 BerElementBuffer berbuf;
232 BerElement *ber = (BerElement *)&berbuf;
234 ber_init2( ber, NULL, LBER_USE_DER );
235 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
237 ctrls[num_ctrls] = op->o_tmpalloc( sizeof ( LDAPControl ), op->o_tmpmemctx );
239 ber_printf( ber, "{" );
240 if ( send_cookie && cookie ) {
241 ber_printf( ber, "O", cookie );
243 if ( refreshDeletes == LDAP_SYNC_REFRESH_DELETES ) {
244 ber_printf( ber, "b", refreshDeletes );
246 ber_printf( ber, "N}" );
248 ctrls[num_ctrls]->ldctl_oid = LDAP_CONTROL_SYNC_DONE;
249 ctrls[num_ctrls]->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
250 ret = ber_flatten2( ber, &ctrls[num_ctrls]->ldctl_value, 1 );
255 Debug( LDAP_DEBUG_TRACE,
256 "syncprov_done_ctrl: ber_flatten2 failed\n",
258 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
270 struct berval *cookie,
275 BerElementBuffer berbuf;
276 BerElement *ber = (BerElement *)&berbuf;
277 struct berval rspdata;
281 ber_init2( ber, NULL, LBER_USE_DER );
282 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
286 case LDAP_TAG_SYNC_NEW_COOKIE:
287 ber_printf( ber, "tO", type, cookie );
289 case LDAP_TAG_SYNC_REFRESH_DELETE:
290 case LDAP_TAG_SYNC_REFRESH_PRESENT:
291 ber_printf( ber, "t{", type );
293 ber_printf( ber, "O", cookie );
295 if ( refreshDone == 0 ) {
296 ber_printf( ber, "b", refreshDone );
298 ber_printf( ber, "N}" );
300 case LDAP_TAG_SYNC_ID_SET:
301 ber_printf( ber, "t{", type );
303 ber_printf( ber, "O", cookie );
305 if ( refreshDeletes == 1 ) {
306 ber_printf( ber, "b", refreshDeletes );
308 ber_printf( ber, "[W]", syncUUIDs );
309 ber_printf( ber, "N}" );
312 Debug( LDAP_DEBUG_TRACE,
313 "syncprov_sendinfo: invalid syncinfo type (%d)\n",
319 ret = ber_flatten2( ber, &rspdata, 0 );
322 Debug( LDAP_DEBUG_TRACE,
323 "syncprov_sendinfo: ber_flatten2 failed\n",
325 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
329 rs->sr_rspoid = LDAP_SYNC_INFO;
330 rs->sr_rspdata = &rspdata;
331 send_ldap_intermediate( op, rs );
332 rs->sr_rspdata = NULL;
338 /* Find a modtarget in an AVL tree */
340 sp_avl_cmp( const void *c1, const void *c2 )
342 const modtarget *m1, *m2;
346 rc = m1->mt_op->o_req_ndn.bv_len - m2->mt_op->o_req_ndn.bv_len;
349 return ber_bvcmp( &m1->mt_op->o_req_ndn, &m2->mt_op->o_req_ndn );
352 /* syncprov_findbase:
353 * finds the true DN of the base of a search (with alias dereferencing) and
354 * checks to make sure the base entry doesn't get replaced with a different
355 * entry (e.g., swapping trees via ModDN, or retargeting an alias). If a
356 * change is detected, any persistent search on this base must be terminated /
358 * On the first call, we just save the DN and entryID. On subsequent calls
359 * we compare the DN and entryID with the saved values.
362 findbase_cb( Operation *op, SlapReply *rs )
364 slap_callback *sc = op->o_callback;
366 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
367 fbase_cookie *fc = sc->sc_private;
369 /* If no entryID, we're looking for the first time.
370 * Just store whatever we got.
372 if ( fc->fss->s_eid == NOID ) {
374 fc->fss->s_eid = rs->sr_entry->e_id;
375 ber_dupbv( &fc->fss->s_base, &rs->sr_entry->e_nname );
377 } else if ( rs->sr_entry->e_id == fc->fss->s_eid &&
378 dn_match( &rs->sr_entry->e_nname, &fc->fss->s_base )) {
380 /* OK, the DN is the same and the entryID is the same. */
384 if ( rs->sr_err != LDAP_SUCCESS ) {
385 Debug( LDAP_DEBUG_ANY, "findbase failed! %d\n", rs->sr_err,0,0 );
390 static Filter generic_filter = { LDAP_FILTER_PRESENT, { 0 }, NULL };
391 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
394 syncprov_findbase( Operation *op, fbase_cookie *fc )
396 opcookie *opc = op->o_callback->sc_private;
397 slap_overinst *on = opc->son;
399 /* Use basic parameters from syncrepl search, but use
400 * current op's threadctx / tmpmemctx
402 ldap_pvt_thread_mutex_lock( &fc->fss->s_mutex );
403 if ( fc->fss->s_flags & PS_FIND_BASE ) {
404 slap_callback cb = {0};
406 SlapReply frs = { REP_RESULT };
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_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 fop.o_bd->bd_info = on->on_info->oi_orig;
436 rc = fop.o_bd->be_search( &fop, &frs );
437 fop.o_bd->bd_info = (BackendInfo *)on;
439 ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
443 /* After the first call, see if the fdn resides in the scope */
444 if ( fc->fbase == 1 ) {
445 switch ( fc->fss->s_op->ors_scope ) {
446 case LDAP_SCOPE_BASE:
447 fc->fscope = dn_match( fc->fdn, &fc->fss->s_base );
449 case LDAP_SCOPE_ONELEVEL: {
451 dnParent( fc->fdn, &pdn );
452 fc->fscope = dn_match( &pdn, &fc->fss->s_base );
454 case LDAP_SCOPE_SUBTREE:
455 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base );
457 case LDAP_SCOPE_SUBORDINATE:
458 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base ) &&
459 !dn_match( fc->fdn, &fc->fss->s_base );
467 /* If entryID has changed, then the base of this search has
468 * changed. Invalidate the psearch.
470 return LDAP_NO_SUCH_OBJECT;
474 * This function has three different purposes, but they all use a search
475 * that filters on entryCSN so they're combined here.
476 * 1: at startup time, after a contextCSN has been read from the database,
477 * we search for all entries with CSN >= contextCSN in case the contextCSN
478 * was not checkpointed at the previous shutdown.
480 * 2: when the current contextCSN is known and we have a sync cookie, we search
481 * for one entry with CSN = the cookie CSN. If not found, try <= cookie CSN.
482 * If an entry is found, the cookie CSN is valid, otherwise it is stale.
484 * 3: during a refresh phase, we search for all entries with CSN <= the cookie
485 * CSN, and generate Present records for them. We always collect this result
486 * in SyncID sets, even if there's only one match.
488 typedef enum find_csn_t {
495 findmax_cb( Operation *op, SlapReply *rs )
497 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
498 struct berval *maxcsn = op->o_callback->sc_private;
499 Attribute *a = attr_find( rs->sr_entry->e_attrs,
500 slap_schema.si_ad_entryCSN );
502 if ( a && ber_bvcmp( &a->a_vals[0], maxcsn ) > 0 ) {
503 maxcsn->bv_len = a->a_vals[0].bv_len;
504 strcpy( maxcsn->bv_val, a->a_vals[0].bv_val );
511 findcsn_cb( Operation *op, SlapReply *rs )
513 slap_callback *sc = op->o_callback;
515 /* We just want to know that at least one exists, so it's OK if
516 * we exceed the unchecked limit.
518 if ( rs->sr_err == LDAP_ADMINLIMIT_EXCEEDED ||
519 (rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS )) {
520 sc->sc_private = (void *)1;
525 /* Build a list of entryUUIDs for sending in a SyncID set */
529 typedef struct fpres_cookie {
536 findpres_cb( Operation *op, SlapReply *rs )
538 slap_callback *sc = op->o_callback;
539 fpres_cookie *pc = sc->sc_private;
541 int ret = SLAP_CB_CONTINUE;
543 switch ( rs->sr_type ) {
545 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
547 pc->uuids[pc->num].bv_val = pc->last;
548 AC_MEMCPY( pc->uuids[pc->num].bv_val, a->a_nvals[0].bv_val,
549 pc->uuids[pc->num].bv_len );
551 pc->last = pc->uuids[pc->num].bv_val;
552 pc->uuids[pc->num].bv_val = NULL;
555 if ( pc->num != SLAP_SYNCUUID_SET_SIZE )
561 ret = syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET, NULL,
563 pc->uuids[pc->num].bv_val = pc->last;
565 pc->last = pc->uuids[0].bv_val;
575 syncprov_findcsn( Operation *op, find_csn_t mode )
577 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
578 syncprov_info_t *si = on->on_bi.bi_private;
580 slap_callback cb = {0};
582 SlapReply frs = { REP_RESULT };
583 char buf[LDAP_LUTIL_CSNSTR_BUFSIZE + STRLENOF("(entryCSN<=)")];
584 char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
585 struct berval maxcsn;
587 #ifdef LDAP_COMP_MATCH
588 AttributeAssertion eq = { NULL, BER_BVNULL, NULL };
590 AttributeAssertion eq = { NULL, BER_BVNULL };
592 fpres_cookie pcookie;
593 sync_control *srs = NULL;
594 struct slap_limits_set fc_limits;
595 int i, rc = LDAP_SUCCESS, findcsn_retry = 1;
598 if ( mode != FIND_MAXCSN ) {
599 srs = op->o_controls[slap_cids.sc_LDAPsync];
603 fop.o_sync_mode &= SLAP_CONTROL_MASK; /* turn off sync_mode */
604 /* We want pure entries, not referrals */
605 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
608 cf.f_av_desc = slap_schema.si_ad_entryCSN;
609 BER_BVZERO( &cf.f_av_value );
612 fop.o_callback = &cb;
613 fop.ors_limit = NULL;
614 fop.ors_tlimit = SLAP_NO_LIMIT;
615 fop.ors_filter = &cf;
616 fop.ors_filterstr.bv_val = buf;
621 cf.f_choice = LDAP_FILTER_GE;
622 cf.f_av_value = si->si_ctxcsn[0];
623 /* If there are multiple CSNs, use the largest */
624 for ( i=1; i<si->si_numcsns; i++) {
625 if ( ber_bvcmp( &cf.f_av_value, &si->si_ctxcsn[i] ) < 0 ) {
626 cf.f_av_value = si->si_ctxcsn[i];
630 fop.ors_filterstr.bv_len = sprintf( buf, "(entryCSN>=%s)",
631 cf.f_av_value.bv_val );
632 fop.ors_attrsonly = 0;
633 fop.ors_attrs = csn_anlist;
634 fop.ors_slimit = SLAP_NO_LIMIT;
635 cb.sc_private = &maxcsn;
636 cb.sc_response = findmax_cb;
637 strcpy( cbuf, cf.f_av_value.bv_val );
638 maxcsn.bv_val = cbuf;
639 maxcsn.bv_len = cf.f_av_value.bv_len;
642 if ( BER_BVISEMPTY( &cf.f_av_value )) {
643 cf.f_av_value = srs->sr_state.ctxcsn[0];
644 /* If there are multiple CSNs, use the smallest */
645 for ( i=1; i<srs->sr_state.numcsns; i++ ) {
646 if ( ber_bvcmp( &cf.f_av_value, &srs->sr_state.ctxcsn[i] )
648 cf.f_av_value = srs->sr_state.ctxcsn[i];
652 /* Look for exact match the first time */
653 if ( findcsn_retry ) {
654 cf.f_choice = LDAP_FILTER_EQUALITY;
655 fop.ors_filterstr.bv_len = sprintf( buf, "(entryCSN=%s)",
656 cf.f_av_value.bv_val );
657 /* On retry, look for <= */
659 cf.f_choice = LDAP_FILTER_LE;
660 fop.ors_limit = &fc_limits;
661 fc_limits.lms_s_unchecked = 1;
662 fop.ors_filterstr.bv_len = sprintf( buf, "(entryCSN<=%s)",
663 cf.f_av_value.bv_val );
665 fop.ors_attrsonly = 1;
666 fop.ors_attrs = slap_anlist_no_attrs;
668 cb.sc_private = NULL;
669 cb.sc_response = findcsn_cb;
672 fop.ors_filter = op->ors_filter;
673 fop.ors_filterstr = op->ors_filterstr;
674 fop.ors_attrsonly = 0;
675 fop.ors_attrs = uuid_anlist;
676 fop.ors_slimit = SLAP_NO_LIMIT;
677 cb.sc_private = &pcookie;
678 cb.sc_response = findpres_cb;
681 /* preallocate storage for a full set */
682 pcookie.uuids = op->o_tmpalloc( (SLAP_SYNCUUID_SET_SIZE+1) *
683 sizeof(struct berval) + SLAP_SYNCUUID_SET_SIZE * UUID_LEN,
685 pcookie.last = (char *)(pcookie.uuids + SLAP_SYNCUUID_SET_SIZE+1);
686 pcookie.uuids[0].bv_val = pcookie.last;
687 pcookie.uuids[0].bv_len = UUID_LEN;
688 for (i=1; i<SLAP_SYNCUUID_SET_SIZE; i++) {
689 pcookie.uuids[i].bv_val = pcookie.uuids[i-1].bv_val + UUID_LEN;
690 pcookie.uuids[i].bv_len = UUID_LEN;
695 fop.o_bd->bd_info = on->on_info->oi_orig;
696 fop.o_bd->be_search( &fop, &frs );
697 fop.o_bd->bd_info = (BackendInfo *)on;
701 if ( ber_bvcmp( &si->si_ctxcsn[maxid], &maxcsn )) {
702 ber_bvreplace( &si->si_ctxcsn[maxid], &maxcsn );
703 si->si_numops++; /* ensure a checkpoint */
707 /* If matching CSN was not found, invalidate the context. */
708 if ( !cb.sc_private ) {
709 /* If we didn't find an exact match, then try for <= */
710 if ( findcsn_retry ) {
714 rc = LDAP_NO_SUCH_OBJECT;
718 op->o_tmpfree( pcookie.uuids, op->o_tmpmemctx );
726 syncprov_free_syncop( syncops *so )
728 syncres *sr, *srnext;
729 GroupAssertion *ga, *gnext;
731 ldap_pvt_thread_mutex_lock( &so->s_mutex );
732 if ( --so->s_inuse > 0 ) {
733 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
736 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
737 if ( so->s_flags & PS_IS_DETACHED ) {
738 filter_free( so->s_op->ors_filter );
739 for ( ga = so->s_op->o_groups; ga; ga=gnext ) {
745 ch_free( so->s_base.bv_val );
746 for ( sr=so->s_res; sr; sr=srnext ) {
750 ldap_pvt_thread_mutex_destroy( &so->s_mutex );
754 /* Send a persistent search response */
756 syncprov_sendresp( Operation *op, opcookie *opc, syncops *so,
757 Entry **e, int mode )
759 slap_overinst *on = opc->son;
761 SlapReply rs = { REP_SEARCH };
762 LDAPControl *ctrls[2];
763 struct berval cookie, csns[2];
765 Attribute a_uuid = {0};
767 if ( so->s_op->o_abandon )
768 return SLAPD_ABANDON;
771 csns[0] = opc->sctxcsn;
772 BER_BVZERO( &csns[1] );
773 slap_compose_sync_cookie( op, &cookie, csns, so->s_rid, so->s_sid );
775 e_uuid.e_attrs = &a_uuid;
776 a_uuid.a_desc = slap_schema.si_ad_entryUUID;
777 a_uuid.a_nvals = &opc->suuid;
778 rs.sr_err = syncprov_state_ctrl( op, &rs, &e_uuid,
779 mode, ctrls, 0, 1, &cookie );
780 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
783 op->o_bd->bd_info = (BackendInfo *)on->on_info;
787 if ( rs.sr_entry->e_private )
788 rs.sr_flags = REP_ENTRY_MUSTRELEASE;
789 if ( opc->sreference ) {
790 rs.sr_ref = get_entry_referrals( op, rs.sr_entry );
791 rs.sr_err = send_search_reference( op, &rs );
792 ber_bvarray_free( rs.sr_ref );
798 case LDAP_SYNC_MODIFY:
800 if ( rs.sr_entry->e_private )
801 rs.sr_flags = REP_ENTRY_MUSTRELEASE;
802 rs.sr_attrs = op->ors_attrs;
803 rs.sr_err = send_search_entry( op, &rs );
807 case LDAP_SYNC_DELETE:
808 e_uuid.e_attrs = NULL;
809 e_uuid.e_name = opc->sdn;
810 e_uuid.e_nname = opc->sndn;
811 rs.sr_entry = &e_uuid;
812 if ( opc->sreference ) {
813 struct berval bv = BER_BVNULL;
815 rs.sr_err = send_search_reference( op, &rs );
817 rs.sr_err = send_search_entry( op, &rs );
823 /* In case someone else freed it already? */
825 op->o_tmpfree( rs.sr_ctrls[0], op->o_tmpmemctx );
832 /* Play back queued responses */
834 syncprov_qplay( Operation *op, slap_overinst *on, syncops *so )
842 op->o_bd->bd_info = (BackendInfo *)on->on_info;
845 ldap_pvt_thread_mutex_lock( &so->s_mutex );
848 so->s_res = sr->s_next;
850 so->s_restail = NULL;
851 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
853 if ( !sr || so->s_op->o_abandon )
857 opc.sndn = sr->s_ndn;
858 opc.suuid = sr->s_uuid;
859 opc.sctxcsn = sr->s_csn;
860 opc.sreference = sr->s_isreference;
863 if ( sr->s_mode != LDAP_SYNC_DELETE ) {
864 rc = be_entry_get_rw( op, &opc.sndn, NULL, NULL, 0, &e );
866 Debug( LDAP_DEBUG_SYNC, "syncprov_qplay: failed to get %s, "
867 "error (%d), ignoring...\n", opc.sndn.bv_val, rc, 0 );
873 rc = syncprov_sendresp( op, &opc, so, &e, sr->s_mode );
876 be_entry_release_rw( op, e, 0 );
884 op->o_bd->bd_info = (BackendInfo *)on;
888 /* runqueue task for playing back queued responses */
890 syncprov_qtask( void *ctx, void *arg )
892 struct re_s *rtask = arg;
893 syncops *so = rtask->arg;
894 slap_overinst *on = so->s_op->o_private;
895 OperationBuffer opbuf;
900 op = (Operation *) &opbuf;
902 op->o_hdr = (Opheader *)(op+1);
903 op->o_controls = (void **)(op->o_hdr+1);
904 memset( op->o_controls, 0, SLAP_MAX_CIDS * sizeof(void *));
906 *op->o_hdr = *so->s_op->o_hdr;
908 op->o_tmpmemctx = slap_sl_mem_create(SLAP_SLAB_SIZE, SLAP_SLAB_STACK, ctx);
909 op->o_tmpmfuncs = &slap_sl_mfuncs;
910 op->o_threadctx = ctx;
912 /* syncprov_qplay expects a fake db */
913 be = *so->s_op->o_bd;
914 be.be_flags |= SLAP_DBFLAG_OVERLAY;
916 op->o_private = NULL;
917 op->o_callback = NULL;
919 rc = syncprov_qplay( op, on, so );
921 /* decrement use count... */
922 syncprov_free_syncop( so );
924 /* wait until we get explicitly scheduled again */
925 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
926 ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
928 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 1 );
930 /* bail out on any error */
931 ldap_pvt_runqueue_remove( &slapd_rq, rtask );
933 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
935 #if 0 /* FIXME: connection_close isn't exported from slapd.
939 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
940 if ( connection_state_closing( op->o_conn )) {
941 connection_close( op->o_conn );
943 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
949 /* Start the task to play back queued psearch responses */
951 syncprov_qstart( syncops *so )
954 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
955 if ( !so->s_qtask ) {
956 so->s_qtask = ldap_pvt_runqueue_insert( &slapd_rq, RUNQ_INTERVAL,
957 syncprov_qtask, so, "syncprov_qtask",
958 so->s_op->o_conn->c_peer_name.bv_val );
962 if (!ldap_pvt_runqueue_isrunning( &slapd_rq, so->s_qtask ) &&
963 !so->s_qtask->next_sched.tv_sec ) {
964 so->s_qtask->interval.tv_sec = 0;
965 ldap_pvt_runqueue_resched( &slapd_rq, so->s_qtask, 0 );
966 so->s_qtask->interval.tv_sec = RUNQ_INTERVAL;
971 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
973 slap_wake_listener();
976 /* Queue a persistent search response */
978 syncprov_qresp( opcookie *opc, syncops *so, int mode )
983 /* Don't send changes back to their originator */
984 sid = slap_parse_csn_sid( &opc->sctxcsn );
985 if ( sid == so->s_sid )
988 sr = ch_malloc(sizeof(syncres) + opc->suuid.bv_len + 1 +
989 opc->sdn.bv_len + 1 + opc->sndn.bv_len + 1 + opc->sctxcsn.bv_len + 1 );
991 sr->s_dn.bv_val = (char *)(sr + 1);
992 sr->s_dn.bv_len = opc->sdn.bv_len;
994 sr->s_isreference = opc->sreference;
995 sr->s_ndn.bv_val = lutil_strcopy( sr->s_dn.bv_val,
996 opc->sdn.bv_val ) + 1;
997 sr->s_ndn.bv_len = opc->sndn.bv_len;
998 sr->s_uuid.bv_val = lutil_strcopy( sr->s_ndn.bv_val,
999 opc->sndn.bv_val ) + 1;
1000 sr->s_uuid.bv_len = opc->suuid.bv_len;
1001 AC_MEMCPY( sr->s_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1002 sr->s_csn.bv_val = sr->s_uuid.bv_val + sr->s_uuid.bv_len + 1;
1003 sr->s_csn.bv_len = opc->sctxcsn.bv_len;
1004 strcpy( sr->s_csn.bv_val, opc->sctxcsn.bv_val );
1006 ldap_pvt_thread_mutex_lock( &so->s_mutex );
1010 so->s_restail->s_next = sr;
1014 /* If the base of the psearch was modified, check it next time round */
1015 if ( so->s_flags & PS_WROTE_BASE ) {
1016 so->s_flags ^= PS_WROTE_BASE;
1017 so->s_flags |= PS_FIND_BASE;
1019 if ( so->s_flags & PS_IS_DETACHED ) {
1020 syncprov_qstart( so );
1022 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
1023 return LDAP_SUCCESS;
1027 syncprov_drop_psearch( syncops *so, int lock )
1029 if ( so->s_flags & PS_IS_DETACHED ) {
1031 ldap_pvt_thread_mutex_lock( &so->s_op->o_conn->c_mutex );
1032 so->s_op->o_conn->c_n_ops_executing--;
1033 so->s_op->o_conn->c_n_ops_completed++;
1034 LDAP_STAILQ_REMOVE( &so->s_op->o_conn->c_ops, so->s_op, slap_op,
1037 ldap_pvt_thread_mutex_unlock( &so->s_op->o_conn->c_mutex );
1039 syncprov_free_syncop( so );
1045 syncprov_ab_cleanup( Operation *op, SlapReply *rs )
1047 slap_callback *sc = op->o_callback;
1048 op->o_callback = sc->sc_next;
1049 syncprov_drop_psearch( op->o_callback->sc_private, 0 );
1050 op->o_tmpfree( sc, op->o_tmpmemctx );
1055 syncprov_op_abandon( Operation *op, SlapReply *rs )
1057 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1058 syncprov_info_t *si = on->on_bi.bi_private;
1059 syncops *so, *soprev;
1061 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1062 for ( so=si->si_ops, soprev = (syncops *)&si->si_ops; so;
1063 soprev=so, so=so->s_next ) {
1064 if ( so->s_op->o_connid == op->o_connid &&
1065 so->s_op->o_msgid == op->orn_msgid ) {
1066 so->s_op->o_abandon = 1;
1067 soprev->s_next = so->s_next;
1071 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1073 /* Is this really a Cancel exop? */
1074 if ( op->o_tag != LDAP_REQ_ABANDON ) {
1075 so->s_op->o_cancel = SLAP_CANCEL_ACK;
1076 rs->sr_err = LDAP_CANCELLED;
1077 send_ldap_result( so->s_op, rs );
1078 if ( so->s_flags & PS_IS_DETACHED ) {
1080 cb = op->o_tmpcalloc( 1, sizeof(slap_callback), op->o_tmpmemctx );
1081 cb->sc_cleanup = syncprov_ab_cleanup;
1082 cb->sc_next = op->o_callback;
1083 cb->sc_private = so;
1084 return SLAP_CB_CONTINUE;
1087 syncprov_drop_psearch( so, 0 );
1089 return SLAP_CB_CONTINUE;
1092 /* Find which persistent searches are affected by this operation */
1094 syncprov_matchops( Operation *op, opcookie *opc, int saveit )
1096 slap_overinst *on = opc->son;
1097 syncprov_info_t *si = on->on_bi.bi_private;
1100 syncops *ss, *sprev, *snext;
1104 struct berval newdn;
1106 BackendDB *b0 = op->o_bd, db;
1108 fc.fdn = &op->o_req_ndn;
1109 /* compute new DN */
1110 if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1112 if ( op->orr_nnewSup ) pdn = *op->orr_nnewSup;
1113 else dnParent( fc.fdn, &pdn );
1114 build_new_dn( &newdn, &pdn, &op->orr_nnewrdn, op->o_tmpmemctx );
1118 if ( op->o_tag != LDAP_REQ_ADD ) {
1119 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1123 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1124 rc = be_entry_get_rw( op, fc.fdn, NULL, NULL, 0, &e );
1125 /* If we're sending responses now, make a copy and unlock the DB */
1126 if ( e && !saveit ) {
1127 Entry *e2 = entry_dup( e );
1128 be_entry_release_rw( op, e, 0 );
1131 op->o_bd->bd_info = (BackendInfo *)on;
1140 if ( saveit || op->o_tag == LDAP_REQ_ADD ) {
1141 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1142 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1143 opc->sreference = is_entry_referral( e );
1144 a = attr_find( e->e_attrs, slap_schema.si_ad_entryUUID );
1146 ber_dupbv_x( &opc->suuid, &a->a_nvals[0], op->o_tmpmemctx );
1147 } else if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1148 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1149 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1150 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1151 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1154 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1155 for (ss = si->si_ops, sprev = (syncops *)&si->si_ops; ss;
1156 sprev = ss, ss=snext)
1167 /* If the base of the search is missing, signal a refresh */
1168 rc = syncprov_findbase( op, &fc );
1169 if ( rc != LDAP_SUCCESS ) {
1170 SlapReply rs = {REP_RESULT};
1171 send_ldap_error( ss->s_op, &rs, LDAP_SYNC_REFRESH_REQUIRED,
1172 "search base has changed" );
1173 sprev->s_next = snext;
1174 syncprov_drop_psearch( ss, 1 );
1180 /* If we're sending results now, look for this op in old matches */
1184 /* Did we modify the search base? */
1185 if ( dn_match( &op->o_req_ndn, &ss->s_base )) {
1186 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1187 ss->s_flags |= PS_WROTE_BASE;
1188 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1191 for ( sm=opc->smatches, old=(syncmatches *)&opc->smatches; sm;
1192 old=sm, sm=sm->sm_next ) {
1193 if ( sm->sm_op == ss ) {
1195 old->sm_next = sm->sm_next;
1196 op->o_tmpfree( sm, op->o_tmpmemctx );
1202 /* check if current o_req_dn is in scope and matches filter */
1203 if ( fc.fscope && test_filter( op, e, ss->s_op->ors_filter ) ==
1204 LDAP_COMPARE_TRUE ) {
1206 sm = op->o_tmpalloc( sizeof(syncmatches), op->o_tmpmemctx );
1207 sm->sm_next = opc->smatches;
1209 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1211 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1214 /* if found send UPDATE else send ADD */
1215 syncprov_qresp( opc, ss,
1216 found ? LDAP_SYNC_MODIFY : LDAP_SYNC_ADD );
1218 } else if ( !saveit && found ) {
1220 syncprov_qresp( opc, ss, LDAP_SYNC_DELETE );
1223 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1225 if ( op->o_tag != LDAP_REQ_ADD && e ) {
1226 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1227 be_entry_release_rw( op, e, 0 );
1228 op->o_bd->bd_info = (BackendInfo *)on;
1231 op->o_tmpfree( fc.fdn->bv_val, op->o_tmpmemctx );
1237 syncprov_op_cleanup( Operation *op, SlapReply *rs )
1239 slap_callback *cb = op->o_callback;
1240 opcookie *opc = cb->sc_private;
1241 slap_overinst *on = opc->son;
1242 syncprov_info_t *si = on->on_bi.bi_private;
1243 syncmatches *sm, *snext;
1244 modtarget *mt, mtdummy;
1246 for (sm = opc->smatches; sm; sm=snext) {
1247 snext = sm->sm_next;
1248 syncprov_free_syncop( sm->sm_op );
1249 op->o_tmpfree( sm, op->o_tmpmemctx );
1252 /* Remove op from lock table */
1254 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1255 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
1257 modinst *mi = mt->mt_mods;
1259 /* If there are more, promote the next one */
1260 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1261 if ( mi->mi_next ) {
1262 mt->mt_mods = mi->mi_next;
1263 mt->mt_op = mt->mt_mods->mi_op;
1264 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1266 avl_delete( &si->si_mods, mt, sp_avl_cmp );
1267 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1268 ldap_pvt_thread_mutex_destroy( &mt->mt_mutex );
1272 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1273 if ( !BER_BVISNULL( &opc->suuid ))
1274 op->o_tmpfree( opc->suuid.bv_val, op->o_tmpmemctx );
1275 if ( !BER_BVISNULL( &opc->sndn ))
1276 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1277 if ( !BER_BVISNULL( &opc->sdn ))
1278 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1279 op->o_callback = cb->sc_next;
1280 op->o_tmpfree(cb, op->o_tmpmemctx);
1286 syncprov_checkpoint( Operation *op, SlapReply *rs, slap_overinst *on )
1288 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
1291 SlapReply rsm = { 0 };
1292 slap_callback cb = {0};
1294 mod.sml_values = si->si_ctxcsn;
1295 mod.sml_nvalues = NULL;
1296 mod.sml_desc = slap_schema.si_ad_contextCSN;
1297 mod.sml_op = LDAP_MOD_REPLACE;
1299 mod.sml_next = NULL;
1301 cb.sc_response = slap_null_cb;
1303 opm.o_tag = LDAP_REQ_MODIFY;
1304 opm.o_callback = &cb;
1305 opm.orm_modlist = &mod;
1306 opm.orm_no_opattrs = 1;
1307 opm.o_req_dn = op->o_bd->be_suffix[0];
1308 opm.o_req_ndn = op->o_bd->be_nsuffix[0];
1309 opm.o_bd->bd_info = on->on_info->oi_orig;
1310 opm.o_managedsait = SLAP_CONTROL_NONCRITICAL;
1311 opm.o_bd->be_modify( &opm, &rsm );
1312 if ( mod.sml_next != NULL ) {
1313 slap_mods_free( mod.sml_next, 1 );
1318 syncprov_add_slog( Operation *op )
1320 opcookie *opc = op->o_callback->sc_private;
1321 slap_overinst *on = opc->son;
1322 syncprov_info_t *si = on->on_bi.bi_private;
1328 /* Allocate a record. UUIDs are not NUL-terminated. */
1329 se = ch_malloc( sizeof( slog_entry ) + opc->suuid.bv_len +
1330 op->o_csn.bv_len + 1 );
1332 se->se_tag = op->o_tag;
1334 se->se_uuid.bv_val = (char *)(&se[1]);
1335 AC_MEMCPY( se->se_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1336 se->se_uuid.bv_len = opc->suuid.bv_len;
1338 se->se_csn.bv_val = se->se_uuid.bv_val + opc->suuid.bv_len;
1339 AC_MEMCPY( se->se_csn.bv_val, op->o_csn.bv_val, op->o_csn.bv_len );
1340 se->se_csn.bv_val[op->o_csn.bv_len] = '\0';
1341 se->se_csn.bv_len = op->o_csn.bv_len;
1342 se->se_sid = slap_parse_csn_sid( &se->se_csn );
1344 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1345 if ( sl->sl_head ) {
1346 sl->sl_tail->se_next = se;
1352 while ( sl->sl_num > sl->sl_size ) {
1354 sl->sl_head = se->se_next;
1355 strcpy( sl->sl_mincsn.bv_val, se->se_csn.bv_val );
1356 sl->sl_mincsn.bv_len = se->se_csn.bv_len;
1360 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1364 /* Just set a flag if we found the matching entry */
1366 playlog_cb( Operation *op, SlapReply *rs )
1368 if ( rs->sr_type == REP_SEARCH ) {
1369 op->o_callback->sc_private = (void *)1;
1374 /* enter with sl->sl_mutex locked, release before returning */
1376 syncprov_playlog( Operation *op, SlapReply *rs, sessionlog *sl,
1377 sync_control *srs, BerVarray ctxcsn, int numcsns, int *sids )
1379 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1381 int i, j, ndel, num, nmods, mmods;
1382 char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
1384 struct berval delcsn[2];
1386 if ( !sl->sl_num ) {
1387 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1395 uuids = op->o_tmpalloc( (num+1) * sizeof( struct berval ) +
1396 num * UUID_LEN, op->o_tmpmemctx );
1397 uuids[0].bv_val = (char *)(uuids + num + 1);
1399 delcsn[0].bv_len = 0;
1400 delcsn[0].bv_val = cbuf;
1401 BER_BVZERO(&delcsn[1]);
1403 /* Make a copy of the relevant UUIDs. Put the Deletes up front
1404 * and everything else at the end. Do this first so we can
1405 * unlock the list mutex.
1407 Debug( LDAP_DEBUG_SYNC, "srs csn %s\n",
1408 srs->sr_state.ctxcsn[0].bv_val, 0, 0 );
1409 for ( se=sl->sl_head; se; se=se->se_next ) {
1411 Debug( LDAP_DEBUG_SYNC, "log csn %s\n", se->se_csn.bv_val, 0, 0 );
1413 for ( k=0; k<srs->sr_state.numcsns; k++ ) {
1414 if ( se->se_sid == srs->sr_state.sids[k] ) {
1415 ndel = ber_bvcmp( &se->se_csn, &srs->sr_state.ctxcsn[k] );
1420 Debug( LDAP_DEBUG_SYNC, "cmp %d, too old\n", ndel, 0, 0 );
1424 for ( k=0; k<numcsns; k++ ) {
1425 if ( se->se_sid == sids[k] ) {
1426 ndel = ber_bvcmp( &se->se_csn, &ctxcsn[k] );
1431 Debug( LDAP_DEBUG_SYNC, "cmp %d, too new\n", ndel, 0, 0 );
1434 if ( se->se_tag == LDAP_REQ_DELETE ) {
1437 AC_MEMCPY( cbuf, se->se_csn.bv_val, se->se_csn.bv_len );
1438 delcsn[0].bv_len = se->se_csn.bv_len;
1439 delcsn[0].bv_val[delcsn[0].bv_len] = '\0';
1444 uuids[j].bv_val = uuids[0].bv_val + (j * UUID_LEN);
1445 AC_MEMCPY(uuids[j].bv_val, se->se_uuid.bv_val, UUID_LEN);
1446 uuids[j].bv_len = UUID_LEN;
1448 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1452 /* Zero out unused slots */
1453 for ( i=ndel; i < num - nmods; i++ )
1454 uuids[i].bv_len = 0;
1456 /* Mods must be validated to see if they belong in this delete set.
1460 /* Strip any duplicates */
1461 for ( i=0; i<nmods; i++ ) {
1462 for ( j=0; j<ndel; j++ ) {
1463 if ( bvmatch( &uuids[j], &uuids[num - 1 - i] )) {
1464 uuids[num - 1 - i].bv_len = 0;
1469 if ( uuids[num - 1 - i].bv_len == 0 ) continue;
1470 for ( j=0; j<i; j++ ) {
1471 if ( bvmatch( &uuids[num - 1 - j], &uuids[num - 1 - i] )) {
1472 uuids[num - 1 - i].bv_len = 0;
1481 SlapReply frs = { REP_RESULT };
1484 #ifdef LDAP_COMP_MATCH
1485 AttributeAssertion eq = { NULL, BER_BVNULL, NULL };
1487 AttributeAssertion eq;
1489 slap_callback cb = {0};
1493 fop.o_sync_mode = 0;
1494 fop.o_callback = &cb;
1495 fop.ors_limit = NULL;
1496 fop.ors_tlimit = SLAP_NO_LIMIT;
1497 fop.ors_attrs = slap_anlist_all_attributes;
1498 fop.ors_attrsonly = 0;
1499 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
1501 af.f_choice = LDAP_FILTER_AND;
1504 mf.f_choice = LDAP_FILTER_EQUALITY;
1506 mf.f_av_desc = slap_schema.si_ad_entryUUID;
1507 mf.f_next = fop.ors_filter;
1509 fop.ors_filter = ⁡
1511 cb.sc_response = playlog_cb;
1512 fop.o_bd->bd_info = on->on_info->oi_orig;
1514 for ( i=ndel; i<num; i++ ) {
1515 if ( uuids[i].bv_len == 0 ) continue;
1517 mf.f_av_value = uuids[i];
1518 cb.sc_private = NULL;
1520 frs.sr_nentries = 0;
1521 rc = fop.o_bd->be_search( &fop, &frs );
1523 /* If entry was not found, add to delete list */
1524 if ( !cb.sc_private ) {
1525 uuids[ndel++] = uuids[i];
1528 fop.o_bd->bd_info = (BackendInfo *)on;
1531 struct berval cookie;
1533 slap_compose_sync_cookie( op, &cookie, delcsn, srs->sr_state.rid,
1534 srs->sr_state.sid );
1535 uuids[ndel].bv_val = NULL;
1536 syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET, &cookie, 0, uuids, 1 );
1537 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
1539 op->o_tmpfree( uuids, op->o_tmpmemctx );
1543 syncprov_op_response( Operation *op, SlapReply *rs )
1545 opcookie *opc = op->o_callback->sc_private;
1546 slap_overinst *on = opc->son;
1547 syncprov_info_t *si = on->on_bi.bi_private;
1550 if ( rs->sr_err == LDAP_SUCCESS )
1552 struct berval maxcsn = BER_BVNULL;
1553 char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
1556 /* Update our context CSN */
1558 ldap_pvt_thread_mutex_lock( &si->si_csn_mutex );
1559 slap_get_commit_csn( op, &maxcsn );
1560 if ( !BER_BVISNULL( &maxcsn ) ) {
1562 strcpy( cbuf, maxcsn.bv_val );
1563 sid = slap_parse_csn_sid( &maxcsn );
1564 for ( i=0; i<si->si_numcsns; i++ ) {
1565 if ( sid == si->si_sids[i] ) {
1566 if ( ber_bvcmp( &maxcsn, &si->si_ctxcsn[i] ) > 0 ) {
1567 ber_bvreplace( &si->si_ctxcsn[i], &maxcsn );
1572 /* It's a new SID for us */
1573 if ( i == si->si_numcsns ) {
1574 value_add_one( &si->si_ctxcsn, &maxcsn );
1576 si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
1578 si->si_sids[i] = sid;
1582 /* Don't do any processing for consumer contextCSN updates */
1583 if ( SLAP_SYNC_SHADOW( op->o_bd ) &&
1584 op->o_msgid == SLAP_SYNC_UPDATE_MSGID ) {
1585 ldap_pvt_thread_mutex_unlock( &si->si_csn_mutex );
1586 return SLAP_CB_CONTINUE;
1590 if ( si->si_chkops || si->si_chktime ) {
1591 if ( si->si_chkops && si->si_numops >= si->si_chkops ) {
1595 if ( si->si_chktime &&
1596 (op->o_time - si->si_chklast >= si->si_chktime )) {
1598 si->si_chklast = op->o_time;
1601 ldap_pvt_thread_mutex_unlock( &si->si_csn_mutex );
1603 opc->sctxcsn.bv_len = maxcsn.bv_len;
1604 opc->sctxcsn.bv_val = cbuf;
1607 syncprov_checkpoint( op, rs, on );
1610 /* Handle any persistent searches */
1614 case LDAP_REQ_MODIFY:
1615 case LDAP_REQ_MODRDN:
1616 case LDAP_REQ_EXTENDED:
1617 syncprov_matchops( op, opc, 0 );
1619 case LDAP_REQ_DELETE:
1620 /* for each match in opc->smatches:
1623 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1624 if ( sm->sm_op->s_op->o_abandon )
1626 syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_DELETE );
1632 /* Add any log records */
1633 if ( si->si_logs && op->o_tag != LDAP_REQ_ADD ) {
1634 syncprov_add_slog( op );
1638 return SLAP_CB_CONTINUE;
1641 /* We don't use a subentry to store the context CSN any more.
1642 * We expose the current context CSN as an operational attribute
1643 * of the suffix entry.
1646 syncprov_op_compare( Operation *op, SlapReply *rs )
1648 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1649 syncprov_info_t *si = on->on_bi.bi_private;
1650 int rc = SLAP_CB_CONTINUE;
1652 if ( dn_match( &op->o_req_ndn, op->o_bd->be_nsuffix ) &&
1653 op->oq_compare.rs_ava->aa_desc == slap_schema.si_ad_contextCSN )
1658 e.e_name = op->o_bd->be_suffix[0];
1659 e.e_nname = op->o_bd->be_nsuffix[0];
1662 a.a_desc = slap_schema.si_ad_contextCSN;
1664 ldap_pvt_thread_mutex_lock( &si->si_csn_mutex );
1666 a.a_vals = si->si_ctxcsn;
1667 a.a_nvals = a.a_vals;
1669 rs->sr_err = access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc,
1670 &op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL );
1671 if ( ! rs->sr_err ) {
1672 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1673 goto return_results;
1676 if ( get_assert( op ) &&
1677 ( test_filter( op, &e, get_assertion( op ) ) != LDAP_COMPARE_TRUE ) )
1679 rs->sr_err = LDAP_ASSERTION_FAILED;
1680 goto return_results;
1684 rs->sr_err = LDAP_COMPARE_FALSE;
1686 if ( value_find_ex( op->oq_compare.rs_ava->aa_desc,
1687 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
1688 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
1689 a.a_nvals, &op->oq_compare.rs_ava->aa_value, op->o_tmpmemctx ) == 0 )
1691 rs->sr_err = LDAP_COMPARE_TRUE;
1696 ldap_pvt_thread_mutex_unlock( &si->si_csn_mutex );
1698 send_ldap_result( op, rs );
1700 if( rs->sr_err == LDAP_COMPARE_FALSE || rs->sr_err == LDAP_COMPARE_TRUE ) {
1701 rs->sr_err = LDAP_SUCCESS;
1710 syncprov_op_mod( Operation *op, SlapReply *rs )
1712 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1713 syncprov_info_t *si = on->on_bi.bi_private;
1715 slap_callback *cb = op->o_tmpcalloc(1, sizeof(slap_callback)+
1717 (si->si_ops ? sizeof(modinst) : 0 ),
1719 opcookie *opc = (opcookie *)(cb+1);
1721 cb->sc_response = syncprov_op_response;
1722 cb->sc_cleanup = syncprov_op_cleanup;
1723 cb->sc_private = opc;
1724 cb->sc_next = op->o_callback;
1725 op->o_callback = cb;
1727 /* If there are active persistent searches, lock this operation.
1728 * See seqmod.c for the locking logic on its own.
1731 modtarget *mt, mtdummy;
1734 mi = (modinst *)(opc+1);
1737 /* See if we're already modifying this entry... */
1739 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1740 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
1742 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1743 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1744 mt->mt_tail->mi_next = mi;
1746 /* wait for this op to get to head of list */
1747 while ( mt->mt_mods != mi ) {
1748 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1749 ldap_pvt_thread_yield();
1750 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1752 /* clean up if the caller is giving up */
1753 if ( op->o_abandon ) {
1755 for ( m2 = mt->mt_mods; m2->mi_next != mi;
1757 m2->mi_next = mi->mi_next;
1758 if ( mt->mt_tail == mi ) mt->mt_tail = m2;
1759 op->o_tmpfree( cb, op->o_tmpmemctx );
1760 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1761 return SLAPD_ABANDON;
1764 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1766 /* Record that we're modifying this entry now */
1767 mt = ch_malloc( sizeof(modtarget) );
1770 mt->mt_op = mi->mi_op;
1771 ldap_pvt_thread_mutex_init( &mt->mt_mutex );
1772 avl_insert( &si->si_mods, mt, sp_avl_cmp, avl_dup_error );
1773 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1777 if (( si->si_ops || si->si_logs ) && op->o_tag != LDAP_REQ_ADD )
1778 syncprov_matchops( op, opc, 1 );
1780 return SLAP_CB_CONTINUE;
1784 syncprov_op_extended( Operation *op, SlapReply *rs )
1786 if ( exop_is_write( op ))
1787 return syncprov_op_mod( op, rs );
1789 return SLAP_CB_CONTINUE;
1792 typedef struct searchstate {
1793 slap_overinst *ss_on;
1795 BerVarray ss_ctxcsn;
1802 syncprov_search_cleanup( Operation *op, SlapReply *rs )
1804 if ( rs->sr_ctrls ) {
1805 op->o_tmpfree( rs->sr_ctrls[0], op->o_tmpmemctx );
1806 op->o_tmpfree( rs->sr_ctrls, op->o_tmpmemctx );
1807 rs->sr_ctrls = NULL;
1813 syncprov_detach_op( Operation *op, syncops *so, slap_overinst *on )
1819 GroupAssertion *g1, *g2;
1821 /* count the search attrs */
1822 for (i=0; op->ors_attrs && !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
1823 alen += op->ors_attrs[i].an_name.bv_len + 1;
1825 /* Make a new copy of the operation */
1826 size = sizeof(Operation) + sizeof(Opheader) +
1827 (i ? ( (i+1) * sizeof(AttributeName) + alen) : 0) +
1828 op->o_req_dn.bv_len + 1 +
1829 op->o_req_ndn.bv_len + 1 +
1830 op->o_ndn.bv_len + 1 +
1831 so->s_filterstr.bv_len + 1;
1832 op2 = (Operation *)ch_calloc( 1, size );
1833 op2->o_hdr = (Opheader *)(op2+1);
1835 /* Copy the fields we care about explicitly, leave the rest alone */
1836 *op2->o_hdr = *op->o_hdr;
1837 op2->o_tag = op->o_tag;
1838 op2->o_time = op->o_time;
1839 op2->o_bd = on->on_info->oi_origdb;
1840 op2->o_request = op->o_request;
1841 op2->o_private = on;
1844 op2->ors_attrs = (AttributeName *)(op2->o_hdr + 1);
1845 ptr = (char *)(op2->ors_attrs+i+1);
1846 for (i=0; !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
1847 op2->ors_attrs[i] = op->ors_attrs[i];
1848 op2->ors_attrs[i].an_name.bv_val = ptr;
1849 ptr = lutil_strcopy( ptr, op->ors_attrs[i].an_name.bv_val ) + 1;
1851 BER_BVZERO( &op2->ors_attrs[i].an_name );
1853 ptr = (char *)(op2->o_hdr + 1);
1855 op2->o_authz = op->o_authz;
1856 op2->o_ndn.bv_val = ptr;
1857 ptr = lutil_strcopy(ptr, op->o_ndn.bv_val) + 1;
1858 op2->o_dn = op2->o_ndn;
1859 op2->o_req_dn.bv_len = op->o_req_dn.bv_len;
1860 op2->o_req_dn.bv_val = ptr;
1861 ptr = lutil_strcopy(ptr, op->o_req_dn.bv_val) + 1;
1862 op2->o_req_ndn.bv_len = op->o_req_ndn.bv_len;
1863 op2->o_req_ndn.bv_val = ptr;
1864 ptr = lutil_strcopy(ptr, op->o_req_ndn.bv_val) + 1;
1865 op2->ors_filterstr.bv_val = ptr;
1866 strcpy( ptr, so->s_filterstr.bv_val );
1867 op2->ors_filterstr.bv_len = so->s_filterstr.bv_len;
1869 /* Skip the AND/GE clause that we stuck on in front */
1870 if ( so->s_flags & PS_FIX_FILTER ) {
1871 op2->ors_filter = op->ors_filter->f_and->f_next;
1872 so->s_flags ^= PS_FIX_FILTER;
1874 op2->ors_filter = op->ors_filter;
1876 op2->ors_filter = filter_dup( op2->ors_filter, NULL );
1879 /* Copy any cached group ACLs individually */
1880 op2->o_groups = NULL;
1881 for ( g1=op->o_groups; g1; g1=g1->ga_next ) {
1882 g2 = ch_malloc( sizeof(GroupAssertion) + g1->ga_len );
1884 strcpy( g2->ga_ndn, g1->ga_ndn );
1885 g2->ga_next = op2->o_groups;
1888 /* Don't allow any further group caching */
1889 op2->o_do_not_cache = 1;
1891 /* Add op2 to conn so abandon will find us */
1892 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
1893 op->o_conn->c_n_ops_executing++;
1894 op->o_conn->c_n_ops_completed--;
1895 LDAP_STAILQ_INSERT_TAIL( &op->o_conn->c_ops, op2, o_next );
1896 so->s_flags |= PS_IS_DETACHED;
1897 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
1899 /* Prevent anyone else from trying to send a result for this op */
1904 syncprov_search_response( Operation *op, SlapReply *rs )
1906 searchstate *ss = op->o_callback->sc_private;
1907 slap_overinst *on = ss->ss_on;
1908 sync_control *srs = op->o_controls[slap_cids.sc_LDAPsync];
1910 if ( rs->sr_type == REP_SEARCH || rs->sr_type == REP_SEARCHREF ) {
1912 /* If we got a referral without a referral object, there's
1913 * something missing that we cannot replicate. Just ignore it.
1914 * The consumer will abort because we didn't send the expected
1917 if ( !rs->sr_entry ) {
1918 assert( rs->sr_entry != NULL );
1919 Debug( LDAP_DEBUG_ANY, "bogus referral in context\n",0,0,0 );
1920 return SLAP_CB_CONTINUE;
1922 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryCSN );
1923 if ( a == NULL && rs->sr_operational_attrs != NULL ) {
1924 a = attr_find( rs->sr_operational_attrs, slap_schema.si_ad_entryCSN );
1928 sid = slap_parse_csn_sid( &a->a_nvals[0] );
1930 /* Don't send changed entries back to the originator */
1931 if ( sid == srs->sr_state.sid && srs->sr_state.numcsns ) {
1932 Debug( LDAP_DEBUG_SYNC,
1933 "Entry %s changed by peer, ignored\n",
1934 rs->sr_entry->e_name.bv_val, 0, 0 );
1935 return LDAP_SUCCESS;
1937 /* Make sure entry is less than the snapshot'd contextCSN */
1938 for ( i=0; i<ss->ss_numcsns; i++ ) {
1939 if ( sid == ss->ss_sids[i] && ber_bvcmp( &a->a_nvals[0],
1940 &ss->ss_ctxcsn[i] ) > 0 ) {
1941 Debug( LDAP_DEBUG_SYNC,
1942 "Entry %s CSN %s greater than snapshot %s\n",
1943 rs->sr_entry->e_name.bv_val,
1944 a->a_nvals[0].bv_val,
1945 ss->ss_ctxcsn[i].bv_val );
1946 return LDAP_SUCCESS;
1950 /* Don't send old entries twice */
1951 if ( srs->sr_state.ctxcsn ) {
1952 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
1953 if ( sid == srs->sr_state.sids[i] &&
1954 ber_bvcmp( &a->a_nvals[0],
1955 &srs->sr_state.ctxcsn[i] )<= 0 ) {
1956 Debug( LDAP_DEBUG_SYNC,
1957 "Entry %s CSN %s older or equal to ctx %s\n",
1958 rs->sr_entry->e_name.bv_val,
1959 a->a_nvals[0].bv_val,
1960 srs->sr_state.ctxcsn[i].bv_val );
1961 return LDAP_SUCCESS;
1966 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
1968 rs->sr_ctrls[1] = NULL;
1969 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
1970 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 0, NULL );
1971 } else if ( rs->sr_type == REP_RESULT && rs->sr_err == LDAP_SUCCESS ) {
1972 struct berval cookie;
1974 slap_compose_sync_cookie( op, &cookie, ss->ss_ctxcsn,
1975 srs->sr_state.rid, srs->sr_state.sid );
1977 /* Is this a regular refresh? */
1979 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
1981 rs->sr_ctrls[1] = NULL;
1982 rs->sr_err = syncprov_done_ctrl( op, rs, rs->sr_ctrls,
1983 0, 1, &cookie, ss->ss_present ? LDAP_SYNC_REFRESH_PRESENTS :
1984 LDAP_SYNC_REFRESH_DELETES );
1985 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
1987 /* It's RefreshAndPersist, transition to Persist phase */
1988 syncprov_sendinfo( op, rs, ss->ss_present ?
1989 LDAP_TAG_SYNC_REFRESH_PRESENT : LDAP_TAG_SYNC_REFRESH_DELETE,
1990 &cookie, 1, NULL, 0 );
1991 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
1993 /* Detach this Op from frontend control */
1994 ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex );
1996 /* Turn off the refreshing flag */
1997 ss->ss_so->s_flags ^= PS_IS_REFRESHING;
1999 syncprov_detach_op( op, ss->ss_so, on );
2001 /* If there are queued responses, fire them off */
2002 if ( ss->ss_so->s_res )
2003 syncprov_qstart( ss->ss_so );
2004 ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
2006 return LDAP_SUCCESS;
2010 return SLAP_CB_CONTINUE;
2014 syncprov_op_search( Operation *op, SlapReply *rs )
2016 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2017 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2019 int gotstate = 0, nochange = 0, do_present;
2020 syncops *sop = NULL;
2024 int i, *sids, numcsns;
2025 struct berval mincsn;
2027 if ( !(op->o_sync_mode & SLAP_SYNC_REFRESH) ) return SLAP_CB_CONTINUE;
2029 if ( op->ors_deref & LDAP_DEREF_SEARCHING ) {
2030 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR, "illegal value for derefAliases" );
2034 do_present = si->si_nopres ? 0 : 1;
2036 srs = op->o_controls[slap_cids.sc_LDAPsync];
2037 op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
2039 /* If this is a persistent search, set it up right away */
2040 if ( op->o_sync_mode & SLAP_SYNC_PERSIST ) {
2050 so.s_flags = PS_IS_REFRESHING | PS_FIND_BASE;
2051 /* syncprov_findbase expects to be called as a callback... */
2052 sc.sc_private = &opc;
2054 ldap_pvt_thread_mutex_init( &so.s_mutex );
2055 cb = op->o_callback;
2056 op->o_callback = ≻
2057 rs->sr_err = syncprov_findbase( op, &fc );
2058 op->o_callback = cb;
2059 ldap_pvt_thread_mutex_destroy( &so.s_mutex );
2061 if ( rs->sr_err != LDAP_SUCCESS ) {
2062 send_ldap_result( op, rs );
2065 sop = ch_malloc( sizeof( syncops ));
2067 ldap_pvt_thread_mutex_init( &sop->s_mutex );
2068 sop->s_rid = srs->sr_state.rid;
2069 sop->s_rid = srs->sr_state.sid;
2072 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2073 sop->s_next = si->si_ops;
2075 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2078 /* snapshot the ctxcsn */
2079 ldap_pvt_thread_mutex_lock( &si->si_csn_mutex );
2080 numcsns = si->si_numcsns;
2082 ber_bvarray_dup_x( &ctxcsn, si->si_ctxcsn, op->o_tmpmemctx );
2083 sids = op->o_tmpalloc( numcsns * sizeof(int), op->o_tmpmemctx );
2084 for ( i=0; i<numcsns; i++ )
2085 sids[i] = si->si_sids[i];
2090 ldap_pvt_thread_mutex_unlock( &si->si_csn_mutex );
2092 /* If we have a cookie, handle the PRESENT lookups */
2093 if ( srs->sr_state.ctxcsn ) {
2097 /* If we don't have any CSN of our own yet, pretend nothing
2103 /* If there are SIDs we don't recognize in the cookie, drop them */
2104 for (i=0; i<srs->sr_state.numcsns; ) {
2105 for (j=0; j<numcsns; j++) {
2106 if ( srs->sr_state.sids[i] == sids[j] ) {
2111 if ( j == numcsns ) {
2112 struct berval tmp = srs->sr_state.ctxcsn[i];
2113 j = srs->sr_state.numcsns - 1;
2114 srs->sr_state.ctxcsn[i] = srs->sr_state.ctxcsn[j];
2116 srs->sr_state.ctxcsn[j] = tmp;
2117 srs->sr_state.numcsns = j;
2118 srs->sr_state.sids[i] = srs->sr_state.sids[j];
2124 /* Find the smallest CSN */
2125 mincsn = srs->sr_state.ctxcsn[0];
2126 for ( i=1; i<srs->sr_state.numcsns; i++ ) {
2127 if ( ber_bvcmp( &mincsn, &srs->sr_state.ctxcsn[i] ) > 0 )
2128 mincsn = srs->sr_state.ctxcsn[i];
2131 /* If nothing has changed, shortcut it */
2132 if ( srs->sr_state.numcsns == numcsns ) {
2133 int i, j, changed = 0;
2134 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2135 for ( j=0; j<numcsns; j++ ) {
2136 if ( srs->sr_state.sids[i] != sids[j] )
2138 if ( !bvmatch( &srs->sr_state.ctxcsn[i], &ctxcsn[j] ))
2146 no_change: nochange = 1;
2147 if ( !(op->o_sync_mode & SLAP_SYNC_PERSIST) ) {
2148 LDAPControl *ctrls[2];
2152 syncprov_done_ctrl( op, rs, ctrls, 0, 0,
2153 NULL, LDAP_SYNC_REFRESH_DELETES );
2154 rs->sr_ctrls = ctrls;
2155 rs->sr_err = LDAP_SUCCESS;
2156 send_ldap_result( op, rs );
2157 rs->sr_ctrls = NULL;
2163 /* Do we have a sessionlog for this search? */
2166 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
2167 /* Are there any log entries, and is the consumer state
2168 * present in the session log?
2170 if ( sl->sl_num > 0 && ber_bvcmp( &mincsn, &sl->sl_mincsn ) >= 0 ) {
2172 /* mutex is unlocked in playlog */
2173 syncprov_playlog( op, rs, sl, srs, ctxcsn, numcsns, sids );
2175 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
2178 /* Is the CSN still present in the database? */
2179 if ( syncprov_findcsn( op, FIND_CSN ) != LDAP_SUCCESS ) {
2180 /* No, so a reload is required */
2181 /* the 2.2 consumer doesn't send this hint */
2182 if ( si->si_usehint && srs->sr_rhint == 0 ) {
2183 send_ldap_error( op, rs, LDAP_SYNC_REFRESH_REQUIRED, "sync cookie is stale" );
2188 /* If changed and doing Present lookup, send Present UUIDs */
2189 if ( do_present && syncprov_findcsn( op, FIND_PRESENT ) !=
2191 send_ldap_result( op, rs );
2198 /* Append CSN range to search filter, save original filter
2199 * for persistent search evaluation
2202 sop->s_filterstr= op->ors_filterstr;
2205 /* If something changed, find the changes */
2206 if ( gotstate && !nochange ) {
2207 Filter *fand, *fava;
2209 fand = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2210 fand->f_choice = LDAP_FILTER_AND;
2211 fand->f_next = NULL;
2212 fava = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2214 fava->f_choice = LDAP_FILTER_GE;
2215 fava->f_ava = op->o_tmpalloc( sizeof(AttributeAssertion), op->o_tmpmemctx );
2216 fava->f_ava->aa_desc = slap_schema.si_ad_entryCSN;
2217 #ifdef LDAP_COMP_MATCH
2218 fava->f_ava->aa_cf = NULL;
2220 ber_dupbv_x( &fava->f_ava->aa_value, &mincsn, op->o_tmpmemctx );
2221 fava->f_next = op->ors_filter;
2222 op->ors_filter = fand;
2223 filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2225 sop->s_flags |= PS_FIX_FILTER;
2228 /* Let our callback add needed info to returned entries */
2229 cb = op->o_tmpcalloc(1, sizeof(slap_callback)+sizeof(searchstate), op->o_tmpmemctx);
2230 ss = (searchstate *)(cb+1);
2233 ss->ss_present = do_present;
2234 ss->ss_ctxcsn = ctxcsn;
2235 ss->ss_numcsns = numcsns;
2237 cb->sc_response = syncprov_search_response;
2238 cb->sc_cleanup = syncprov_search_cleanup;
2239 cb->sc_private = ss;
2240 cb->sc_next = op->o_callback;
2241 op->o_callback = cb;
2243 /* If this is a persistent search and no changes were reported during
2244 * the refresh phase, just invoke the response callback to transition
2245 * us into persist phase
2248 rs->sr_err = LDAP_SUCCESS;
2249 rs->sr_nentries = 0;
2250 send_ldap_result( op, rs );
2253 return SLAP_CB_CONTINUE;
2257 syncprov_operational(
2261 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2262 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2264 if ( rs->sr_entry &&
2265 dn_match( &rs->sr_entry->e_nname, op->o_bd->be_nsuffix )) {
2267 if ( SLAP_OPATTRS( rs->sr_attr_flags ) ||
2268 ad_inlist( slap_schema.si_ad_contextCSN, rs->sr_attrs )) {
2269 Attribute *a, **ap = NULL;
2271 for ( a=rs->sr_entry->e_attrs; a; a=a->a_next ) {
2272 if ( a->a_desc == slap_schema.si_ad_contextCSN )
2276 ldap_pvt_thread_mutex_lock( &si->si_csn_mutex );
2277 if ( si->si_ctxcsn ) {
2279 for ( ap = &rs->sr_operational_attrs; *ap;
2280 ap=&(*ap)->a_next );
2282 a = attr_alloc( slap_schema.si_ad_contextCSN );
2287 if ( !rs->sr_flags & REP_ENTRY_MODIFIABLE ) {
2288 rs->sr_entry = entry_dup( rs->sr_entry );
2290 REP_ENTRY_MODIFIABLE|REP_ENTRY_MUSTBEFREED;
2291 a = attr_find( rs->sr_entry->e_attrs,
2292 slap_schema.si_ad_contextCSN );
2296 ber_bvarray_dup_x( &a->a_vals, si->si_ctxcsn, NULL );
2297 a->a_nvals = a->a_vals;
2299 ldap_pvt_thread_mutex_unlock( &si->si_csn_mutex );
2302 return SLAP_CB_CONTINUE;
2312 static ConfigDriver sp_cf_gen;
2314 static ConfigTable spcfg[] = {
2315 { "syncprov-checkpoint", "ops> <minutes", 3, 3, 0, ARG_MAGIC|SP_CHKPT,
2316 sp_cf_gen, "( OLcfgOvAt:1.1 NAME 'olcSpCheckpoint' "
2317 "DESC 'ContextCSN checkpoint interval in ops and minutes' "
2318 "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
2319 { "syncprov-sessionlog", "ops", 2, 2, 0, ARG_INT|ARG_MAGIC|SP_SESSL,
2320 sp_cf_gen, "( OLcfgOvAt:1.2 NAME 'olcSpSessionlog' "
2321 "DESC 'Session log size in ops' "
2322 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
2323 { "syncprov-nopresent", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_NOPRES,
2324 sp_cf_gen, "( OLcfgOvAt:1.3 NAME 'olcSpNoPresent' "
2325 "DESC 'Omit Present phase processing' "
2326 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2327 { "syncprov-reloadhint", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_USEHINT,
2328 sp_cf_gen, "( OLcfgOvAt:1.4 NAME 'olcSpReloadHint' "
2329 "DESC 'Observe Reload Hint in Request control' "
2330 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2331 { NULL, NULL, 0, 0, 0, ARG_IGNORED }
2334 static ConfigOCs spocs[] = {
2335 { "( OLcfgOvOc:1.1 "
2336 "NAME 'olcSyncProvConfig' "
2337 "DESC 'SyncRepl Provider configuration' "
2338 "SUP olcOverlayConfig "
2339 "MAY ( olcSpCheckpoint $ olcSpSessionlog $ olcSpNoPresent ) )",
2340 Cft_Overlay, spcfg },
2345 sp_cf_gen(ConfigArgs *c)
2347 slap_overinst *on = (slap_overinst *)c->bi;
2348 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2351 if ( c->op == SLAP_CONFIG_EMIT ) {
2352 switch ( c->type ) {
2354 if ( si->si_chkops || si->si_chktime ) {
2356 bv.bv_len = sprintf( c->msg, "%d %d",
2357 si->si_chkops, si->si_chktime );
2359 value_add_one( &c->rvalue_vals, &bv );
2365 if ( si->si_logs ) {
2366 c->value_int = si->si_logs->sl_size;
2372 if ( si->si_nopres ) {
2379 if ( si->si_usehint ) {
2387 } else if ( c->op == LDAP_MOD_DELETE ) {
2388 switch ( c->type ) {
2395 si->si_logs->sl_size = 0;
2397 rc = LDAP_NO_SUCH_ATTRIBUTE;
2400 if ( si->si_nopres )
2403 rc = LDAP_NO_SUCH_ATTRIBUTE;
2406 if ( si->si_usehint )
2409 rc = LDAP_NO_SUCH_ATTRIBUTE;
2414 switch ( c->type ) {
2416 if ( lutil_atoi( &si->si_chkops, c->argv[1] ) != 0 ) {
2417 snprintf( c->msg, sizeof( c->msg ), "%s unable to parse checkpoint ops # \"%s\"",
2418 c->argv[0], c->argv[1] );
2419 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2420 "%s: %s\n", c->log, c->msg, 0 );
2421 return ARG_BAD_CONF;
2423 if ( si->si_chkops <= 0 ) {
2424 snprintf( c->msg, sizeof( c->msg ), "%s invalid checkpoint ops # \"%d\"",
2425 c->argv[0], si->si_chkops );
2426 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2427 "%s: %s\n", c->log, c->msg, 0 );
2428 return ARG_BAD_CONF;
2430 if ( lutil_atoi( &si->si_chktime, c->argv[2] ) != 0 ) {
2431 snprintf( c->msg, sizeof( c->msg ), "%s unable to parse checkpoint time \"%s\"",
2432 c->argv[0], c->argv[1] );
2433 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2434 "%s: %s\n", c->log, c->msg, 0 );
2435 return ARG_BAD_CONF;
2437 if ( si->si_chktime <= 0 ) {
2438 snprintf( c->msg, sizeof( c->msg ), "%s invalid checkpoint time \"%d\"",
2439 c->argv[0], si->si_chkops );
2440 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2441 "%s: %s\n", c->log, c->msg, 0 );
2442 return ARG_BAD_CONF;
2444 si->si_chktime *= 60;
2448 int size = c->value_int;
2451 snprintf( c->msg, sizeof( c->msg ), "%s size %d is negative",
2453 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2454 "%s: %s\n", c->log, c->msg, 0 );
2455 return ARG_BAD_CONF;
2459 sl = ch_malloc( sizeof( sessionlog ) + LDAP_LUTIL_CSNSTR_BUFSIZE );
2460 sl->sl_mincsn.bv_val = (char *)(sl+1);
2461 sl->sl_mincsn.bv_len = 0;
2463 sl->sl_head = sl->sl_tail = NULL;
2464 ldap_pvt_thread_mutex_init( &sl->sl_mutex );
2471 si->si_nopres = c->value_int;
2474 si->si_usehint = c->value_int;
2480 /* ITS#3456 we cannot run this search on the main thread, must use a
2481 * child thread in order to insure we have a big enough stack.
2488 syncprov_findcsn( ptr, FIND_MAXCSN );
2492 /* Read any existing contextCSN from the underlying db.
2493 * Then search for any entries newer than that. If no value exists,
2494 * just generate it. Cache whatever result.
2501 slap_overinst *on = (slap_overinst *) be->bd_info;
2502 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2504 Connection conn = { 0 };
2505 OperationBuffer opbuf = { 0 };
2506 Operation *op = (Operation *) &opbuf;
2510 void *thrctx = NULL;
2512 if ( !SLAP_LASTMOD( be )) {
2513 Debug( LDAP_DEBUG_ANY,
2514 "syncprov_db_open: invalid config, lastmod must be enabled\n", 0, 0, 0 );
2518 if ( slapMode & SLAP_TOOL_MODE ) {
2522 rc = overlay_register_control( be, LDAP_CONTROL_SYNC );
2527 thrctx = ldap_pvt_thread_pool_context();
2528 connection_fake_init( &conn, op, thrctx );
2530 op->o_dn = be->be_rootdn;
2531 op->o_ndn = be->be_rootndn;
2533 op->o_bd->bd_info = on->on_info->oi_orig;
2534 rc = be_entry_get_rw( op, be->be_nsuffix, NULL,
2535 slap_schema.si_ad_contextCSN, 0, &e );
2538 ldap_pvt_thread_t tid;
2540 a = attr_find( e->e_attrs, slap_schema.si_ad_contextCSN );
2543 ber_bvarray_dup_x( &si->si_ctxcsn, a->a_vals, NULL );
2544 for ( i=0; !BER_BVISEMPTY( &a->a_vals[i] ); i++ );
2546 si->si_sids = slap_parse_csn_sids( si->si_ctxcsn, i );
2548 be_entry_release_rw( op, e, 0 );
2549 if ( si->si_ctxcsn ) {
2550 op->o_bd->bd_info = (BackendInfo *)on;
2551 op->o_req_dn = be->be_suffix[0];
2552 op->o_req_ndn = be->be_nsuffix[0];
2553 op->ors_scope = LDAP_SCOPE_SUBTREE;
2554 ldap_pvt_thread_create( &tid, 0, syncprov_db_otask, op );
2555 ldap_pvt_thread_join( tid, NULL );
2559 /* Didn't find a contextCSN, should we generate one? */
2560 if ( !si->si_ctxcsn ) {
2561 char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
2564 if ( SLAP_SYNC_SHADOW( op->o_bd )) {
2565 /* If we're also a consumer, then don't generate anything.
2566 * Wait for our provider to send it to us, or for a local
2567 * modify if we have multimaster.
2571 csn.bv_val = csnbuf;
2572 csn.bv_len = sizeof( csnbuf );
2573 slap_get_csn( op, &csn, 0 );
2574 value_add_one( &si->si_ctxcsn, &csn );
2576 si->si_sids = ch_malloc( sizeof(int) );
2577 si->si_sids[0] = slap_serverID;
2579 /* make sure we do a checkpoint on close */
2584 op->o_bd->bd_info = (BackendInfo *)on;
2588 /* Write the current contextCSN into the underlying db.
2595 slap_overinst *on = (slap_overinst *) be->bd_info;
2596 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2598 if ( slapMode & SLAP_TOOL_MODE ) {
2601 if ( si->si_numops ) {
2603 OperationBuffer opbuf;
2604 Operation *op = (Operation *) &opbuf;
2605 SlapReply rs = {REP_RESULT};
2608 thrctx = ldap_pvt_thread_pool_context();
2609 connection_fake_init( &conn, op, thrctx );
2611 op->o_dn = be->be_rootdn;
2612 op->o_ndn = be->be_rootndn;
2613 syncprov_checkpoint( op, &rs, on );
2624 slap_overinst *on = (slap_overinst *)be->bd_info;
2625 syncprov_info_t *si;
2627 if ( SLAP_ISGLOBALOVERLAY( be ) ) {
2628 Debug( LDAP_DEBUG_ANY,
2629 "syncprov must be instantiated within a database.\n",
2634 si = ch_calloc(1, sizeof(syncprov_info_t));
2635 on->on_bi.bi_private = si;
2636 ldap_pvt_thread_mutex_init( &si->si_csn_mutex );
2637 ldap_pvt_thread_mutex_init( &si->si_ops_mutex );
2638 ldap_pvt_thread_mutex_init( &si->si_mods_mutex );
2640 csn_anlist[0].an_desc = slap_schema.si_ad_entryCSN;
2641 csn_anlist[0].an_name = slap_schema.si_ad_entryCSN->ad_cname;
2642 csn_anlist[1].an_desc = slap_schema.si_ad_entryUUID;
2643 csn_anlist[1].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2645 uuid_anlist[0].an_desc = slap_schema.si_ad_entryUUID;
2646 uuid_anlist[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2652 syncprov_db_destroy(
2656 slap_overinst *on = (slap_overinst *)be->bd_info;
2657 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2660 if ( si->si_logs ) {
2661 slog_entry *se = si->si_logs->sl_head;
2664 slog_entry *se_next = se->se_next;
2669 ch_free( si->si_logs );
2671 ldap_pvt_thread_mutex_destroy( &si->si_mods_mutex );
2672 ldap_pvt_thread_mutex_destroy( &si->si_ops_mutex );
2673 ldap_pvt_thread_mutex_destroy( &si->si_csn_mutex );
2680 static int syncprov_parseCtrl (
2686 BerElementBuffer berbuf;
2687 BerElement *ber = (BerElement *)&berbuf;
2690 struct berval cookie = BER_BVNULL;
2694 if ( op->o_sync != SLAP_CONTROL_NONE ) {
2695 rs->sr_text = "Sync control specified multiple times";
2696 return LDAP_PROTOCOL_ERROR;
2699 if ( op->o_pagedresults != SLAP_CONTROL_NONE ) {
2700 rs->sr_text = "Sync control specified with pagedResults control";
2701 return LDAP_PROTOCOL_ERROR;
2704 if ( BER_BVISEMPTY( &ctrl->ldctl_value ) ) {
2705 rs->sr_text = "Sync control value is empty (or absent)";
2706 return LDAP_PROTOCOL_ERROR;
2709 /* Parse the control value
2710 * syncRequestValue ::= SEQUENCE {
2715 * refreshAndPersist (3)
2717 * cookie syncCookie OPTIONAL
2721 ber_init2( ber, &ctrl->ldctl_value, 0 );
2723 if ( (tag = ber_scanf( ber, "{i" /*}*/, &mode )) == LBER_ERROR ) {
2724 rs->sr_text = "Sync control : mode decoding error";
2725 return LDAP_PROTOCOL_ERROR;
2729 case LDAP_SYNC_REFRESH_ONLY:
2730 mode = SLAP_SYNC_REFRESH;
2732 case LDAP_SYNC_REFRESH_AND_PERSIST:
2733 mode = SLAP_SYNC_REFRESH_AND_PERSIST;
2736 rs->sr_text = "Sync control : unknown update mode";
2737 return LDAP_PROTOCOL_ERROR;
2740 tag = ber_peek_tag( ber, &len );
2742 if ( tag == LDAP_TAG_SYNC_COOKIE ) {
2743 if (( ber_scanf( ber, /*{*/ "m", &cookie )) == LBER_ERROR ) {
2744 rs->sr_text = "Sync control : cookie decoding error";
2745 return LDAP_PROTOCOL_ERROR;
2747 tag = ber_peek_tag( ber, &len );
2749 if ( tag == LDAP_TAG_RELOAD_HINT ) {
2750 if (( ber_scanf( ber, /*{*/ "b", &rhint )) == LBER_ERROR ) {
2751 rs->sr_text = "Sync control : rhint decoding error";
2752 return LDAP_PROTOCOL_ERROR;
2755 if (( ber_scanf( ber, /*{*/ "}")) == LBER_ERROR ) {
2756 rs->sr_text = "Sync control : decoding error";
2757 return LDAP_PROTOCOL_ERROR;
2759 sr = op->o_tmpcalloc( 1, sizeof(struct sync_control), op->o_tmpmemctx );
2760 sr->sr_rhint = rhint;
2761 if (!BER_BVISNULL(&cookie)) {
2762 ber_dupbv_x( &sr->sr_state.octet_str, &cookie, op->o_tmpmemctx );
2763 slap_parse_sync_cookie( &sr->sr_state, op->o_tmpmemctx );
2764 if ( sr->sr_state.rid == -1 ) {
2765 rs->sr_text = "Sync control : cookie parsing error";
2766 return LDAP_PROTOCOL_ERROR;
2770 op->o_controls[slap_cids.sc_LDAPsync] = sr;
2772 op->o_sync = ctrl->ldctl_iscritical
2773 ? SLAP_CONTROL_CRITICAL
2774 : SLAP_CONTROL_NONCRITICAL;
2776 op->o_sync_mode |= mode; /* o_sync_mode shares o_sync */
2778 return LDAP_SUCCESS;
2781 /* This overlay is set up for dynamic loading via moduleload. For static
2782 * configuration, you'll need to arrange for the slap_overinst to be
2783 * initialized and registered by some other function inside slapd.
2786 static slap_overinst syncprov;
2789 syncprov_initialize()
2793 rc = register_supported_control( LDAP_CONTROL_SYNC,
2794 SLAP_CTRL_SEARCH, NULL,
2795 syncprov_parseCtrl, &slap_cids.sc_LDAPsync );
2796 if ( rc != LDAP_SUCCESS ) {
2797 Debug( LDAP_DEBUG_ANY,
2798 "syncprov_init: Failed to register control %d\n", rc, 0, 0 );
2802 syncprov.on_bi.bi_type = "syncprov";
2803 syncprov.on_bi.bi_db_init = syncprov_db_init;
2804 syncprov.on_bi.bi_db_destroy = syncprov_db_destroy;
2805 syncprov.on_bi.bi_db_open = syncprov_db_open;
2806 syncprov.on_bi.bi_db_close = syncprov_db_close;
2808 syncprov.on_bi.bi_op_abandon = syncprov_op_abandon;
2809 syncprov.on_bi.bi_op_cancel = syncprov_op_abandon;
2811 syncprov.on_bi.bi_op_add = syncprov_op_mod;
2812 syncprov.on_bi.bi_op_compare = syncprov_op_compare;
2813 syncprov.on_bi.bi_op_delete = syncprov_op_mod;
2814 syncprov.on_bi.bi_op_modify = syncprov_op_mod;
2815 syncprov.on_bi.bi_op_modrdn = syncprov_op_mod;
2816 syncprov.on_bi.bi_op_search = syncprov_op_search;
2817 syncprov.on_bi.bi_extended = syncprov_op_extended;
2818 syncprov.on_bi.bi_operational = syncprov_operational;
2820 syncprov.on_bi.bi_cf_ocs = spocs;
2822 generic_filter.f_desc = slap_schema.si_ad_objectClass;
2824 rc = config_register_schema( spcfg, spocs );
2825 if ( rc ) return rc;
2827 return overlay_register( &syncprov );
2830 #if SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC
2832 init_module( int argc, char *argv[] )
2834 return syncprov_initialize();
2836 #endif /* SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC */
2838 #endif /* defined(SLAPD_OVER_SYNCPROV) */