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 */
127 struct berval si_contextdn;
130 int si_chkops; /* checkpointing info */
132 int si_numops; /* number of ops since last checkpoint */
133 int si_nopres; /* Skip present phase */
134 int si_usehint; /* use reload hint */
135 time_t si_chklast; /* time of last checkpoint */
136 Avlnode *si_mods; /* entries being modified */
138 ldap_pvt_thread_rdwr_t si_csn_rwlock;
139 ldap_pvt_thread_mutex_t si_ops_mutex;
140 ldap_pvt_thread_mutex_t si_mods_mutex;
141 ldap_pvt_thread_mutex_t si_resp_mutex;
144 typedef struct opcookie {
146 syncmatches *smatches;
148 struct berval sdn; /* DN of entry, for deletes */
150 struct berval suuid; /* UUID of entry */
151 struct berval sctxcsn;
152 short osid; /* sid of op csn */
153 short rsid; /* sid of relay */
154 short sreference; /* Is the entry a reference? */
157 typedef struct fbase_cookie {
158 struct berval *fdn; /* DN of a modified entry, for scope testing */
159 syncops *fss; /* persistent search we're testing against */
160 int fbase; /* if TRUE we found the search base and it's still valid */
161 int fscope; /* if TRUE then fdn is within the psearch scope */
164 static AttributeName csn_anlist[3];
165 static AttributeName uuid_anlist[2];
167 /* Build a LDAPsync intermediate state control */
173 int entry_sync_state,
177 struct berval *cookie )
182 BerElementBuffer berbuf;
183 BerElement *ber = (BerElement *)&berbuf;
185 struct berval entryuuid_bv = BER_BVNULL;
187 ber_init2( ber, 0, LBER_USE_DER );
188 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
190 ctrls[num_ctrls] = op->o_tmpalloc( sizeof ( LDAPControl ), op->o_tmpmemctx );
192 for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
193 AttributeDescription *desc = a->a_desc;
194 if ( desc == slap_schema.si_ad_entryUUID ) {
195 entryuuid_bv = a->a_nvals[0];
200 /* FIXME: what if entryuuid is NULL or empty ? */
202 if ( send_cookie && cookie ) {
203 ber_printf( ber, "{eOON}",
204 entry_sync_state, &entryuuid_bv, cookie );
206 ber_printf( ber, "{eON}",
207 entry_sync_state, &entryuuid_bv );
210 ctrls[num_ctrls]->ldctl_oid = LDAP_CONTROL_SYNC_STATE;
211 ctrls[num_ctrls]->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
212 ret = ber_flatten2( ber, &ctrls[num_ctrls]->ldctl_value, 1 );
217 Debug( LDAP_DEBUG_TRACE,
218 "slap_build_sync_ctrl: ber_flatten2 failed\n",
220 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
227 /* Build a LDAPsync final state control */
235 struct berval *cookie,
239 BerElementBuffer berbuf;
240 BerElement *ber = (BerElement *)&berbuf;
242 ber_init2( ber, NULL, LBER_USE_DER );
243 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
245 ctrls[num_ctrls] = op->o_tmpalloc( sizeof ( LDAPControl ), op->o_tmpmemctx );
247 ber_printf( ber, "{" );
248 if ( send_cookie && cookie ) {
249 ber_printf( ber, "O", cookie );
251 if ( refreshDeletes == LDAP_SYNC_REFRESH_DELETES ) {
252 ber_printf( ber, "b", refreshDeletes );
254 ber_printf( ber, "N}" );
256 ctrls[num_ctrls]->ldctl_oid = LDAP_CONTROL_SYNC_DONE;
257 ctrls[num_ctrls]->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
258 ret = ber_flatten2( ber, &ctrls[num_ctrls]->ldctl_value, 1 );
263 Debug( LDAP_DEBUG_TRACE,
264 "syncprov_done_ctrl: ber_flatten2 failed\n",
266 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
278 struct berval *cookie,
283 BerElementBuffer berbuf;
284 BerElement *ber = (BerElement *)&berbuf;
285 struct berval rspdata;
289 ber_init2( ber, NULL, LBER_USE_DER );
290 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
294 case LDAP_TAG_SYNC_NEW_COOKIE:
295 ber_printf( ber, "tO", type, cookie );
297 case LDAP_TAG_SYNC_REFRESH_DELETE:
298 case LDAP_TAG_SYNC_REFRESH_PRESENT:
299 ber_printf( ber, "t{", type );
301 ber_printf( ber, "O", cookie );
303 if ( refreshDone == 0 ) {
304 ber_printf( ber, "b", refreshDone );
306 ber_printf( ber, "N}" );
308 case LDAP_TAG_SYNC_ID_SET:
309 ber_printf( ber, "t{", type );
311 ber_printf( ber, "O", cookie );
313 if ( refreshDeletes == 1 ) {
314 ber_printf( ber, "b", refreshDeletes );
316 ber_printf( ber, "[W]", syncUUIDs );
317 ber_printf( ber, "N}" );
320 Debug( LDAP_DEBUG_TRACE,
321 "syncprov_sendinfo: invalid syncinfo type (%d)\n",
327 ret = ber_flatten2( ber, &rspdata, 0 );
330 Debug( LDAP_DEBUG_TRACE,
331 "syncprov_sendinfo: ber_flatten2 failed\n",
333 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
337 rs->sr_rspoid = LDAP_SYNC_INFO;
338 rs->sr_rspdata = &rspdata;
339 send_ldap_intermediate( op, rs );
340 rs->sr_rspdata = NULL;
346 /* Find a modtarget in an AVL tree */
348 sp_avl_cmp( const void *c1, const void *c2 )
350 const modtarget *m1, *m2;
354 rc = m1->mt_op->o_req_ndn.bv_len - m2->mt_op->o_req_ndn.bv_len;
357 return ber_bvcmp( &m1->mt_op->o_req_ndn, &m2->mt_op->o_req_ndn );
360 /* syncprov_findbase:
361 * finds the true DN of the base of a search (with alias dereferencing) and
362 * checks to make sure the base entry doesn't get replaced with a different
363 * entry (e.g., swapping trees via ModDN, or retargeting an alias). If a
364 * change is detected, any persistent search on this base must be terminated /
366 * On the first call, we just save the DN and entryID. On subsequent calls
367 * we compare the DN and entryID with the saved values.
370 findbase_cb( Operation *op, SlapReply *rs )
372 slap_callback *sc = op->o_callback;
374 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
375 fbase_cookie *fc = sc->sc_private;
377 /* If no entryID, we're looking for the first time.
378 * Just store whatever we got.
380 if ( fc->fss->s_eid == NOID ) {
382 fc->fss->s_eid = rs->sr_entry->e_id;
383 ber_dupbv( &fc->fss->s_base, &rs->sr_entry->e_nname );
385 } else if ( rs->sr_entry->e_id == fc->fss->s_eid &&
386 dn_match( &rs->sr_entry->e_nname, &fc->fss->s_base )) {
388 /* OK, the DN is the same and the entryID is the same. */
392 if ( rs->sr_err != LDAP_SUCCESS ) {
393 Debug( LDAP_DEBUG_ANY, "findbase failed! %d\n", rs->sr_err,0,0 );
398 static Filter generic_filter = { LDAP_FILTER_PRESENT, { 0 }, NULL };
399 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
402 syncprov_findbase( Operation *op, fbase_cookie *fc )
404 /* Use basic parameters from syncrepl search, but use
405 * current op's threadctx / tmpmemctx
407 ldap_pvt_thread_mutex_lock( &fc->fss->s_mutex );
408 if ( fc->fss->s_flags & PS_FIND_BASE ) {
409 slap_callback cb = {0};
411 SlapReply frs = { REP_RESULT };
414 fc->fss->s_flags ^= PS_FIND_BASE;
415 ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
417 fop = *fc->fss->s_op;
419 fop.o_bd = fop.o_bd->bd_self;
420 fop.o_hdr = op->o_hdr;
421 fop.o_time = op->o_time;
422 fop.o_tincr = op->o_tincr;
424 cb.sc_response = findbase_cb;
427 fop.o_sync_mode = 0; /* turn off sync mode */
428 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
429 fop.o_callback = &cb;
430 fop.o_tag = LDAP_REQ_SEARCH;
431 fop.ors_scope = LDAP_SCOPE_BASE;
432 fop.ors_limit = NULL;
434 fop.ors_tlimit = SLAP_NO_LIMIT;
435 fop.ors_attrs = slap_anlist_no_attrs;
436 fop.ors_attrsonly = 1;
437 fop.ors_filter = &generic_filter;
438 fop.ors_filterstr = generic_filterstr;
440 rc = fop.o_bd->be_search( &fop, &frs );
442 ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
446 /* After the first call, see if the fdn resides in the scope */
447 if ( fc->fbase == 1 ) {
448 switch ( fc->fss->s_op->ors_scope ) {
449 case LDAP_SCOPE_BASE:
450 fc->fscope = dn_match( fc->fdn, &fc->fss->s_base );
452 case LDAP_SCOPE_ONELEVEL: {
454 dnParent( fc->fdn, &pdn );
455 fc->fscope = dn_match( &pdn, &fc->fss->s_base );
457 case LDAP_SCOPE_SUBTREE:
458 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base );
460 case LDAP_SCOPE_SUBORDINATE:
461 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base ) &&
462 !dn_match( fc->fdn, &fc->fss->s_base );
470 /* If entryID has changed, then the base of this search has
471 * changed. Invalidate the psearch.
473 return LDAP_NO_SUCH_OBJECT;
477 * This function has three different purposes, but they all use a search
478 * that filters on entryCSN so they're combined here.
479 * 1: at startup time, after a contextCSN has been read from the database,
480 * we search for all entries with CSN >= contextCSN in case the contextCSN
481 * was not checkpointed at the previous shutdown.
483 * 2: when the current contextCSN is known and we have a sync cookie, we search
484 * for one entry with CSN = the cookie CSN. If not found, try <= cookie CSN.
485 * If an entry is found, the cookie CSN is valid, otherwise it is stale.
487 * 3: during a refresh phase, we search for all entries with CSN <= the cookie
488 * CSN, and generate Present records for them. We always collect this result
489 * in SyncID sets, even if there's only one match.
491 typedef enum find_csn_t {
498 findmax_cb( Operation *op, SlapReply *rs )
500 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
501 struct berval *maxcsn = op->o_callback->sc_private;
502 Attribute *a = attr_find( rs->sr_entry->e_attrs,
503 slap_schema.si_ad_entryCSN );
505 if ( a && ber_bvcmp( &a->a_vals[0], maxcsn ) > 0 &&
506 slap_parse_csn_sid( &a->a_vals[0] ) == slap_serverID ) {
507 maxcsn->bv_len = a->a_vals[0].bv_len;
508 strcpy( maxcsn->bv_val, a->a_vals[0].bv_val );
515 findcsn_cb( Operation *op, SlapReply *rs )
517 slap_callback *sc = op->o_callback;
519 /* We just want to know that at least one exists, so it's OK if
520 * we exceed the unchecked limit.
522 if ( rs->sr_err == LDAP_ADMINLIMIT_EXCEEDED ||
523 (rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS )) {
524 sc->sc_private = (void *)1;
529 /* Build a list of entryUUIDs for sending in a SyncID set */
533 typedef struct fpres_cookie {
540 findpres_cb( Operation *op, SlapReply *rs )
542 slap_callback *sc = op->o_callback;
543 fpres_cookie *pc = sc->sc_private;
545 int ret = SLAP_CB_CONTINUE;
547 switch ( rs->sr_type ) {
549 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
551 pc->uuids[pc->num].bv_val = pc->last;
552 AC_MEMCPY( pc->uuids[pc->num].bv_val, a->a_nvals[0].bv_val,
553 pc->uuids[pc->num].bv_len );
555 pc->last = pc->uuids[pc->num].bv_val;
556 pc->uuids[pc->num].bv_val = NULL;
559 if ( pc->num != SLAP_SYNCUUID_SET_SIZE )
565 ret = syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET, NULL,
567 pc->uuids[pc->num].bv_val = pc->last;
569 pc->last = pc->uuids[0].bv_val;
579 syncprov_findcsn( Operation *op, find_csn_t mode )
581 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
582 syncprov_info_t *si = on->on_bi.bi_private;
584 slap_callback cb = {0};
586 SlapReply frs = { REP_RESULT };
587 char buf[LDAP_PVT_CSNSTR_BUFSIZE + STRLENOF("(entryCSN<=)")];
588 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
589 struct berval maxcsn;
591 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
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 /* If there are multiple CSNs, use the one with our serverID */
623 for ( i=0; i<si->si_numcsns; i++) {
624 if ( slap_serverID == si->si_sids[i] ) {
629 if ( i == si->si_numcsns ) {
630 /* No match: this is multimaster, and none of the content in the DB
631 * originated locally. Treat like no CSN.
633 return LDAP_NO_SUCH_OBJECT;
635 cf.f_av_value = si->si_ctxcsn[maxid];
636 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
637 "(entryCSN>=%s)", cf.f_av_value.bv_val );
638 if ( fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
641 fop.ors_attrsonly = 0;
642 fop.ors_attrs = csn_anlist;
643 fop.ors_slimit = SLAP_NO_LIMIT;
644 cb.sc_private = &maxcsn;
645 cb.sc_response = findmax_cb;
646 strcpy( cbuf, cf.f_av_value.bv_val );
647 maxcsn.bv_val = cbuf;
648 maxcsn.bv_len = cf.f_av_value.bv_len;
651 if ( BER_BVISEMPTY( &cf.f_av_value )) {
652 cf.f_av_value = srs->sr_state.ctxcsn[0];
653 /* If there are multiple CSNs, use the smallest */
654 for ( i=1; i<srs->sr_state.numcsns; i++ ) {
655 if ( ber_bvcmp( &cf.f_av_value, &srs->sr_state.ctxcsn[i] )
657 cf.f_av_value = srs->sr_state.ctxcsn[i];
661 /* Look for exact match the first time */
662 if ( findcsn_retry ) {
663 cf.f_choice = LDAP_FILTER_EQUALITY;
664 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
665 "(entryCSN=%s)", cf.f_av_value.bv_val );
666 /* On retry, look for <= */
668 cf.f_choice = LDAP_FILTER_LE;
669 fop.ors_limit = &fc_limits;
670 memset( &fc_limits, 0, sizeof( fc_limits ));
671 fc_limits.lms_s_unchecked = 1;
672 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
673 "(entryCSN<=%s)", cf.f_av_value.bv_val );
675 if ( fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
678 fop.ors_attrsonly = 1;
679 fop.ors_attrs = slap_anlist_no_attrs;
681 cb.sc_private = NULL;
682 cb.sc_response = findcsn_cb;
685 fop.ors_filter = op->ors_filter;
686 fop.ors_filterstr = op->ors_filterstr;
687 fop.ors_attrsonly = 0;
688 fop.ors_attrs = uuid_anlist;
689 fop.ors_slimit = SLAP_NO_LIMIT;
690 cb.sc_private = &pcookie;
691 cb.sc_response = findpres_cb;
694 /* preallocate storage for a full set */
695 pcookie.uuids = op->o_tmpalloc( (SLAP_SYNCUUID_SET_SIZE+1) *
696 sizeof(struct berval) + SLAP_SYNCUUID_SET_SIZE * UUID_LEN,
698 pcookie.last = (char *)(pcookie.uuids + SLAP_SYNCUUID_SET_SIZE+1);
699 pcookie.uuids[0].bv_val = pcookie.last;
700 pcookie.uuids[0].bv_len = UUID_LEN;
701 for (i=1; i<SLAP_SYNCUUID_SET_SIZE; i++) {
702 pcookie.uuids[i].bv_val = pcookie.uuids[i-1].bv_val + UUID_LEN;
703 pcookie.uuids[i].bv_len = UUID_LEN;
708 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
709 fop.o_bd->be_search( &fop, &frs );
710 fop.o_bd->bd_info = (BackendInfo *)on;
714 if ( ber_bvcmp( &si->si_ctxcsn[maxid], &maxcsn )) {
716 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
717 assert( !syn->ssyn_validate( syn, &maxcsn ));
719 ber_bvreplace( &si->si_ctxcsn[maxid], &maxcsn );
720 si->si_numops++; /* ensure a checkpoint */
724 /* If matching CSN was not found, invalidate the context. */
725 if ( !cb.sc_private ) {
726 /* If we didn't find an exact match, then try for <= */
727 if ( findcsn_retry ) {
731 rc = LDAP_NO_SUCH_OBJECT;
735 op->o_tmpfree( pcookie.uuids, op->o_tmpmemctx );
743 syncprov_free_syncop( syncops *so )
745 syncres *sr, *srnext;
746 GroupAssertion *ga, *gnext;
748 ldap_pvt_thread_mutex_lock( &so->s_mutex );
749 if ( --so->s_inuse > 0 ) {
750 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
753 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
754 if ( so->s_flags & PS_IS_DETACHED ) {
755 filter_free( so->s_op->ors_filter );
756 for ( ga = so->s_op->o_groups; ga; ga=gnext ) {
762 ch_free( so->s_base.bv_val );
763 for ( sr=so->s_res; sr; sr=srnext ) {
767 ldap_pvt_thread_mutex_destroy( &so->s_mutex );
771 /* Send a persistent search response */
773 syncprov_sendresp( Operation *op, opcookie *opc, syncops *so,
774 Entry **e, int mode )
776 slap_overinst *on = opc->son;
778 SlapReply rs = { REP_SEARCH };
779 LDAPControl *ctrls[2];
780 struct berval cookie = BER_BVNULL, csns[2];
782 Attribute a_uuid = {0};
784 if ( so->s_op->o_abandon )
785 return SLAPD_ABANDON;
788 if ( !BER_BVISNULL( &opc->sctxcsn )) {
789 csns[0] = opc->sctxcsn;
790 BER_BVZERO( &csns[1] );
791 slap_compose_sync_cookie( op, &cookie, csns, so->s_rid, slap_serverID ? slap_serverID : -1 );
795 if ( so->s_sid > 0 ) {
796 Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: to=%03x, cookie=%s\n",
797 so->s_sid, cookie.bv_val ? cookie.bv_val : "", 0 );
799 Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: cookie=%s\n",
800 cookie.bv_val ? cookie.bv_val : "", 0, 0 );
804 e_uuid.e_attrs = &a_uuid;
805 a_uuid.a_desc = slap_schema.si_ad_entryUUID;
806 a_uuid.a_nvals = &opc->suuid;
807 rs.sr_err = syncprov_state_ctrl( op, &rs, &e_uuid,
808 mode, ctrls, 0, 1, &cookie );
809 if ( !BER_BVISNULL( &cookie )) {
810 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
814 op->o_bd->bd_info = (BackendInfo *)on->on_info;
818 if ( rs.sr_entry->e_private )
819 rs.sr_flags = REP_ENTRY_MUSTRELEASE;
820 if ( opc->sreference && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
821 rs.sr_ref = get_entry_referrals( op, rs.sr_entry );
822 rs.sr_err = send_search_reference( op, &rs );
823 ber_bvarray_free( rs.sr_ref );
829 case LDAP_SYNC_MODIFY:
831 if ( rs.sr_entry->e_private )
832 rs.sr_flags = REP_ENTRY_MUSTRELEASE;
833 rs.sr_attrs = op->ors_attrs;
834 rs.sr_err = send_search_entry( op, &rs );
838 case LDAP_SYNC_DELETE:
839 e_uuid.e_attrs = NULL;
840 e_uuid.e_name = opc->sdn;
841 e_uuid.e_nname = opc->sndn;
842 rs.sr_entry = &e_uuid;
843 if ( opc->sreference && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
844 struct berval bv = BER_BVNULL;
846 rs.sr_err = send_search_reference( op, &rs );
848 rs.sr_err = send_search_entry( op, &rs );
854 /* In case someone else freed it already? */
857 for ( i=0; rs.sr_ctrls[i]; i++ ) {
858 if ( rs.sr_ctrls[i] == ctrls[0] ) {
859 op->o_tmpfree( ctrls[0]->ldctl_value.bv_val, op->o_tmpmemctx );
860 ctrls[0]->ldctl_value.bv_val = NULL;
871 syncprov_qstart( syncops *so );
873 /* Play back queued responses */
875 syncprov_qplay( Operation *op, syncops *so )
877 slap_overinst *on = LDAP_SLIST_FIRST(&so->s_op->o_extra)->oe_key;
886 ldap_pvt_thread_mutex_lock( &so->s_mutex );
889 so->s_res = sr->s_next;
891 so->s_restail = NULL;
892 /* Exit loop with mutex held */
893 if ( !sr || so->s_op->o_abandon )
895 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
897 if ( sr->s_mode == LDAP_SYNC_NEW_COOKIE ) {
898 SlapReply rs = { REP_INTERMEDIATE };
900 rc = syncprov_sendinfo( op, &rs, LDAP_TAG_SYNC_NEW_COOKIE,
901 &sr->s_csn, 0, NULL, 0 );
904 opc.sndn = sr->s_ndn;
905 opc.suuid = sr->s_uuid;
906 opc.sctxcsn = sr->s_csn;
907 opc.sreference = sr->s_isreference;
910 if ( sr->s_mode != LDAP_SYNC_DELETE ) {
911 rc = overlay_entry_get_ov( op, &opc.sndn, NULL, NULL, 0, &e, on );
913 Debug( LDAP_DEBUG_SYNC, "syncprov_qplay: failed to get %s, "
914 "error (%d), ignoring...\n", opc.sndn.bv_val, rc, 0 );
920 rc = syncprov_sendresp( op, &opc, so, &e, sr->s_mode );
923 overlay_entry_release_ov( op, e, 0, on );
929 /* Exit loop with mutex held */
930 ldap_pvt_thread_mutex_lock( &so->s_mutex );
934 /* We now only send one change at a time, to prevent one
935 * psearch from hogging all the CPU. Resubmit this task if
936 * there are more responses queued and no errors occurred.
939 if ( rc == 0 && so->s_res ) {
940 syncprov_qstart( so );
942 so->s_flags ^= PS_TASK_QUEUED;
945 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
949 /* task for playing back queued responses */
951 syncprov_qtask( void *ctx, void *arg )
954 OperationBuffer opbuf;
961 op->o_hdr = &opbuf.ob_hdr;
962 op->o_controls = opbuf.ob_controls;
963 memset( op->o_controls, 0, sizeof(opbuf.ob_controls) );
965 *op->o_hdr = *so->s_op->o_hdr;
967 op->o_tmpmemctx = slap_sl_mem_create(SLAP_SLAB_SIZE, SLAP_SLAB_STACK, ctx, 1);
968 op->o_tmpmfuncs = &slap_sl_mfuncs;
969 op->o_threadctx = ctx;
971 /* syncprov_qplay expects a fake db */
972 be = *so->s_op->o_bd;
973 be.be_flags |= SLAP_DBFLAG_OVERLAY;
975 LDAP_SLIST_FIRST(&op->o_extra) = NULL;
976 op->o_callback = NULL;
978 rc = syncprov_qplay( op, so );
980 /* decrement use count... */
981 syncprov_free_syncop( so );
986 /* Start the task to play back queued psearch responses */
988 syncprov_qstart( syncops *so )
990 so->s_flags |= PS_TASK_QUEUED;
992 ldap_pvt_thread_pool_submit( &connection_pool,
993 syncprov_qtask, so );
996 /* Queue a persistent search response */
998 syncprov_qresp( opcookie *opc, syncops *so, int mode )
1002 struct berval cookie = opc->sctxcsn;
1004 if ( mode == LDAP_SYNC_NEW_COOKIE ) {
1005 syncprov_info_t *si = opc->son->on_bi.bi_private;
1007 slap_compose_sync_cookie( NULL, &cookie, si->si_ctxcsn,
1008 so->s_rid, slap_serverID ? slap_serverID : -1);
1011 srsize = sizeof(syncres) + opc->suuid.bv_len + 1 +
1012 opc->sdn.bv_len + 1 + opc->sndn.bv_len + 1;
1013 if ( cookie.bv_len )
1014 srsize += cookie.bv_len + 1;
1015 sr = ch_malloc( srsize );
1017 sr->s_dn.bv_val = (char *)(sr + 1);
1018 sr->s_dn.bv_len = opc->sdn.bv_len;
1020 sr->s_isreference = opc->sreference;
1021 sr->s_ndn.bv_val = lutil_strcopy( sr->s_dn.bv_val,
1022 opc->sdn.bv_val ) + 1;
1023 sr->s_ndn.bv_len = opc->sndn.bv_len;
1024 sr->s_uuid.bv_val = lutil_strcopy( sr->s_ndn.bv_val,
1025 opc->sndn.bv_val ) + 1;
1026 sr->s_uuid.bv_len = opc->suuid.bv_len;
1027 AC_MEMCPY( sr->s_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1028 if ( cookie.bv_len ) {
1029 sr->s_csn.bv_val = sr->s_uuid.bv_val + sr->s_uuid.bv_len + 1;
1030 strcpy( sr->s_csn.bv_val, cookie.bv_val );
1032 sr->s_csn.bv_val = NULL;
1034 sr->s_csn.bv_len = cookie.bv_len;
1036 if ( mode == LDAP_SYNC_NEW_COOKIE && cookie.bv_val ) {
1037 ch_free( cookie.bv_val );
1040 ldap_pvt_thread_mutex_lock( &so->s_mutex );
1044 so->s_restail->s_next = sr;
1048 /* If the base of the psearch was modified, check it next time round */
1049 if ( so->s_flags & PS_WROTE_BASE ) {
1050 so->s_flags ^= PS_WROTE_BASE;
1051 so->s_flags |= PS_FIND_BASE;
1053 if (( so->s_flags & (PS_IS_DETACHED|PS_TASK_QUEUED)) == PS_IS_DETACHED ) {
1054 syncprov_qstart( so );
1056 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
1057 return LDAP_SUCCESS;
1061 syncprov_drop_psearch( syncops *so, int lock )
1063 if ( so->s_flags & PS_IS_DETACHED ) {
1065 ldap_pvt_thread_mutex_lock( &so->s_op->o_conn->c_mutex );
1066 so->s_op->o_conn->c_n_ops_executing--;
1067 so->s_op->o_conn->c_n_ops_completed++;
1068 LDAP_STAILQ_REMOVE( &so->s_op->o_conn->c_ops, so->s_op, Operation,
1071 ldap_pvt_thread_mutex_unlock( &so->s_op->o_conn->c_mutex );
1073 syncprov_free_syncop( so );
1079 syncprov_ab_cleanup( Operation *op, SlapReply *rs )
1081 slap_callback *sc = op->o_callback;
1082 op->o_callback = sc->sc_next;
1083 syncprov_drop_psearch( op->o_callback->sc_private, 0 );
1084 op->o_tmpfree( sc, op->o_tmpmemctx );
1089 syncprov_op_abandon( Operation *op, SlapReply *rs )
1091 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1092 syncprov_info_t *si = on->on_bi.bi_private;
1093 syncops *so, *soprev;
1095 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1096 for ( so=si->si_ops, soprev = (syncops *)&si->si_ops; so;
1097 soprev=so, so=so->s_next ) {
1098 if ( so->s_op->o_connid == op->o_connid &&
1099 so->s_op->o_msgid == op->orn_msgid ) {
1100 so->s_op->o_abandon = 1;
1101 soprev->s_next = so->s_next;
1105 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1107 /* Is this really a Cancel exop? */
1108 if ( op->o_tag != LDAP_REQ_ABANDON ) {
1109 so->s_op->o_cancel = SLAP_CANCEL_ACK;
1110 rs->sr_err = LDAP_CANCELLED;
1111 send_ldap_result( so->s_op, rs );
1112 if ( so->s_flags & PS_IS_DETACHED ) {
1114 cb = op->o_tmpcalloc( 1, sizeof(slap_callback), op->o_tmpmemctx );
1115 cb->sc_cleanup = syncprov_ab_cleanup;
1116 cb->sc_next = op->o_callback;
1117 cb->sc_private = so;
1118 return SLAP_CB_CONTINUE;
1121 syncprov_drop_psearch( so, 0 );
1123 return SLAP_CB_CONTINUE;
1126 /* Find which persistent searches are affected by this operation */
1128 syncprov_matchops( Operation *op, opcookie *opc, int saveit )
1130 slap_overinst *on = opc->son;
1131 syncprov_info_t *si = on->on_bi.bi_private;
1134 syncops *ss, *sprev, *snext;
1138 struct berval newdn;
1140 BackendDB *b0 = op->o_bd, db;
1142 fc.fdn = &op->o_req_ndn;
1143 /* compute new DN */
1144 if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1146 if ( op->orr_nnewSup ) pdn = *op->orr_nnewSup;
1147 else dnParent( fc.fdn, &pdn );
1148 build_new_dn( &newdn, &pdn, &op->orr_nnewrdn, op->o_tmpmemctx );
1152 if ( op->o_tag != LDAP_REQ_ADD ) {
1153 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1157 rc = overlay_entry_get_ov( op, fc.fdn, NULL, NULL, 0, &e, on );
1158 /* If we're sending responses now, make a copy and unlock the DB */
1159 if ( e && !saveit ) {
1160 Entry *e2 = entry_dup( e );
1161 overlay_entry_release_ov( op, e, 0, on );
1172 if ( saveit || op->o_tag == LDAP_REQ_ADD ) {
1173 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1174 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1175 opc->sreference = is_entry_referral( e );
1176 a = attr_find( e->e_attrs, slap_schema.si_ad_entryUUID );
1178 ber_dupbv_x( &opc->suuid, &a->a_nvals[0], op->o_tmpmemctx );
1179 } else if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1180 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1181 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1182 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1183 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1186 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1187 for (ss = si->si_ops, sprev = (syncops *)&si->si_ops; ss;
1188 sprev = ss, ss=snext)
1196 if ( ss->s_op->o_abandon )
1199 /* Don't send ops back to the originator */
1200 if ( opc->osid > 0 && opc->osid == ss->s_sid ) {
1201 Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping original sid %03x\n",
1206 /* Don't send ops back to the messenger */
1207 if ( opc->rsid > 0 && opc->rsid == ss->s_sid ) {
1208 Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping relayed sid %03x\n",
1218 /* If the base of the search is missing, signal a refresh */
1219 rc = syncprov_findbase( op, &fc );
1220 if ( rc != LDAP_SUCCESS ) {
1221 SlapReply rs = {REP_RESULT};
1222 send_ldap_error( ss->s_op, &rs, LDAP_SYNC_REFRESH_REQUIRED,
1223 "search base has changed" );
1224 sprev->s_next = snext;
1225 syncprov_drop_psearch( ss, 1 );
1231 /* If we're sending results now, look for this op in old matches */
1235 /* Did we modify the search base? */
1236 if ( dn_match( &op->o_req_ndn, &ss->s_base )) {
1237 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1238 ss->s_flags |= PS_WROTE_BASE;
1239 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1242 for ( sm=opc->smatches, old=(syncmatches *)&opc->smatches; sm;
1243 old=sm, sm=sm->sm_next ) {
1244 if ( sm->sm_op == ss ) {
1246 old->sm_next = sm->sm_next;
1247 op->o_tmpfree( sm, op->o_tmpmemctx );
1256 oh.oh_conn = ss->s_op->o_conn;
1257 oh.oh_connid = ss->s_op->o_connid;
1258 op2.o_bd = op->o_bd->bd_self;
1260 op2.o_extra = op->o_extra;
1261 op2.o_callback = NULL;
1262 rc = test_filter( &op2, e, ss->s_op->ors_filter );
1265 Debug( LDAP_DEBUG_TRACE, "syncprov_matchops: sid %03x fscope %d rc %d\n",
1266 ss->s_sid, fc.fscope, rc );
1268 /* check if current o_req_dn is in scope and matches filter */
1269 if ( fc.fscope && rc == LDAP_COMPARE_TRUE ) {
1271 sm = op->o_tmpalloc( sizeof(syncmatches), op->o_tmpmemctx );
1272 sm->sm_next = opc->smatches;
1274 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1276 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1279 /* if found send UPDATE else send ADD */
1280 syncprov_qresp( opc, ss,
1281 found ? LDAP_SYNC_MODIFY : LDAP_SYNC_ADD );
1283 } else if ( !saveit && found ) {
1285 syncprov_qresp( opc, ss, LDAP_SYNC_DELETE );
1286 } else if ( !saveit ) {
1287 syncprov_qresp( opc, ss, LDAP_SYNC_NEW_COOKIE );
1289 if ( !saveit && found ) {
1290 /* Decrement s_inuse, was incremented when called
1291 * with saveit == TRUE
1293 syncprov_free_syncop( ss );
1296 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1298 if ( op->o_tag != LDAP_REQ_ADD && e ) {
1299 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1302 overlay_entry_release_ov( op, e, 0, on );
1306 op->o_tmpfree( fc.fdn->bv_val, op->o_tmpmemctx );
1312 syncprov_op_cleanup( Operation *op, SlapReply *rs )
1314 slap_callback *cb = op->o_callback;
1315 opcookie *opc = cb->sc_private;
1316 slap_overinst *on = opc->son;
1317 syncprov_info_t *si = on->on_bi.bi_private;
1318 syncmatches *sm, *snext;
1319 modtarget *mt, mtdummy;
1321 for (sm = opc->smatches; sm; sm=snext) {
1322 snext = sm->sm_next;
1323 syncprov_free_syncop( sm->sm_op );
1324 op->o_tmpfree( sm, op->o_tmpmemctx );
1327 /* Remove op from lock table */
1330 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1331 mt->mt_mods = mt->mt_mods->mi_next;
1332 /* If there are more, promote the next one */
1333 if ( mt->mt_mods ) {
1334 mt->mt_op = mt->mt_mods->mi_op;
1335 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1337 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1338 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1339 avl_delete( &si->si_mods, mt, sp_avl_cmp );
1340 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1341 ldap_pvt_thread_mutex_destroy( &mt->mt_mutex );
1345 if ( !BER_BVISNULL( &opc->suuid ))
1346 op->o_tmpfree( opc->suuid.bv_val, op->o_tmpmemctx );
1347 if ( !BER_BVISNULL( &opc->sndn ))
1348 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1349 if ( !BER_BVISNULL( &opc->sdn ))
1350 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1351 op->o_callback = cb->sc_next;
1352 op->o_tmpfree(cb, op->o_tmpmemctx);
1358 syncprov_checkpoint( Operation *op, SlapReply *rs, slap_overinst *on )
1360 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
1363 SlapReply rsm = { 0 };
1364 slap_callback cb = {0};
1368 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1371 for ( i=0; i<si->si_numcsns; i++ ) {
1372 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1375 mod.sml_numvals = si->si_numcsns;
1376 mod.sml_values = si->si_ctxcsn;
1377 mod.sml_nvalues = NULL;
1378 mod.sml_desc = slap_schema.si_ad_contextCSN;
1379 mod.sml_op = LDAP_MOD_REPLACE;
1380 mod.sml_flags = SLAP_MOD_INTERNAL;
1381 mod.sml_next = NULL;
1383 cb.sc_response = slap_null_cb;
1385 opm.o_tag = LDAP_REQ_MODIFY;
1386 opm.o_callback = &cb;
1387 opm.orm_modlist = &mod;
1388 opm.orm_no_opattrs = 1;
1389 if ( SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1390 be = *on->on_info->oi_origdb;
1393 opm.o_req_dn = si->si_contextdn;
1394 opm.o_req_ndn = si->si_contextdn;
1395 opm.o_bd->bd_info = on->on_info->oi_orig;
1396 opm.o_managedsait = SLAP_CONTROL_NONCRITICAL;
1397 opm.o_no_schema_check = 1;
1398 opm.o_bd->be_modify( &opm, &rsm );
1400 if ( rsm.sr_err == LDAP_NO_SUCH_OBJECT &&
1401 SLAP_SYNC_SUBENTRY( opm.o_bd )) {
1403 char txtbuf[SLAP_TEXT_BUFLEN];
1404 size_t textlen = sizeof txtbuf;
1405 Entry *e = slap_create_context_csn_entry( opm.o_bd, NULL );
1406 slap_mods2entry( &mod, &e, 0, 1, &text, txtbuf, textlen);
1408 opm.o_bd->be_add( &opm, &rsm );
1409 if ( e == opm.ora_e )
1410 be_entry_release_w( &opm, opm.ora_e );
1413 if ( mod.sml_next != NULL ) {
1414 slap_mods_free( mod.sml_next, 1 );
1417 for ( i=0; i<si->si_numcsns; i++ ) {
1418 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1424 syncprov_add_slog( Operation *op )
1426 opcookie *opc = op->o_callback->sc_private;
1427 slap_overinst *on = opc->son;
1428 syncprov_info_t *si = on->on_bi.bi_private;
1434 /* Allocate a record. UUIDs are not NUL-terminated. */
1435 se = ch_malloc( sizeof( slog_entry ) + opc->suuid.bv_len +
1436 op->o_csn.bv_len + 1 );
1438 se->se_tag = op->o_tag;
1440 se->se_uuid.bv_val = (char *)(&se[1]);
1441 AC_MEMCPY( se->se_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1442 se->se_uuid.bv_len = opc->suuid.bv_len;
1444 se->se_csn.bv_val = se->se_uuid.bv_val + opc->suuid.bv_len;
1445 AC_MEMCPY( se->se_csn.bv_val, op->o_csn.bv_val, op->o_csn.bv_len );
1446 se->se_csn.bv_val[op->o_csn.bv_len] = '\0';
1447 se->se_csn.bv_len = op->o_csn.bv_len;
1448 se->se_sid = slap_parse_csn_sid( &se->se_csn );
1450 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1451 if ( sl->sl_head ) {
1452 sl->sl_tail->se_next = se;
1458 while ( sl->sl_num > sl->sl_size ) {
1460 sl->sl_head = se->se_next;
1461 strcpy( sl->sl_mincsn.bv_val, se->se_csn.bv_val );
1462 sl->sl_mincsn.bv_len = se->se_csn.bv_len;
1466 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1470 /* Just set a flag if we found the matching entry */
1472 playlog_cb( Operation *op, SlapReply *rs )
1474 if ( rs->sr_type == REP_SEARCH ) {
1475 op->o_callback->sc_private = (void *)1;
1480 /* enter with sl->sl_mutex locked, release before returning */
1482 syncprov_playlog( Operation *op, SlapReply *rs, sessionlog *sl,
1483 sync_control *srs, BerVarray ctxcsn, int numcsns, int *sids )
1485 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1487 int i, j, ndel, num, nmods, mmods;
1488 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
1490 struct berval delcsn[2];
1492 if ( !sl->sl_num ) {
1493 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1501 uuids = op->o_tmpalloc( (num+1) * sizeof( struct berval ) +
1502 num * UUID_LEN, op->o_tmpmemctx );
1503 uuids[0].bv_val = (char *)(uuids + num + 1);
1505 delcsn[0].bv_len = 0;
1506 delcsn[0].bv_val = cbuf;
1507 BER_BVZERO(&delcsn[1]);
1509 /* Make a copy of the relevant UUIDs. Put the Deletes up front
1510 * and everything else at the end. Do this first so we can
1511 * unlock the list mutex.
1513 Debug( LDAP_DEBUG_SYNC, "srs csn %s\n",
1514 srs->sr_state.ctxcsn[0].bv_val, 0, 0 );
1515 for ( se=sl->sl_head; se; se=se->se_next ) {
1517 Debug( LDAP_DEBUG_SYNC, "log csn %s\n", se->se_csn.bv_val, 0, 0 );
1519 for ( k=0; k<srs->sr_state.numcsns; k++ ) {
1520 if ( se->se_sid == srs->sr_state.sids[k] ) {
1521 ndel = ber_bvcmp( &se->se_csn, &srs->sr_state.ctxcsn[k] );
1526 Debug( LDAP_DEBUG_SYNC, "cmp %d, too old\n", ndel, 0, 0 );
1530 for ( k=0; k<numcsns; k++ ) {
1531 if ( se->se_sid == sids[k] ) {
1532 ndel = ber_bvcmp( &se->se_csn, &ctxcsn[k] );
1537 Debug( LDAP_DEBUG_SYNC, "cmp %d, too new\n", ndel, 0, 0 );
1540 if ( se->se_tag == LDAP_REQ_DELETE ) {
1543 AC_MEMCPY( cbuf, se->se_csn.bv_val, se->se_csn.bv_len );
1544 delcsn[0].bv_len = se->se_csn.bv_len;
1545 delcsn[0].bv_val[delcsn[0].bv_len] = '\0';
1550 uuids[j].bv_val = uuids[0].bv_val + (j * UUID_LEN);
1551 AC_MEMCPY(uuids[j].bv_val, se->se_uuid.bv_val, UUID_LEN);
1552 uuids[j].bv_len = UUID_LEN;
1554 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1558 /* Zero out unused slots */
1559 for ( i=ndel; i < num - nmods; i++ )
1560 uuids[i].bv_len = 0;
1562 /* Mods must be validated to see if they belong in this delete set.
1566 /* Strip any duplicates */
1567 for ( i=0; i<nmods; i++ ) {
1568 for ( j=0; j<ndel; j++ ) {
1569 if ( bvmatch( &uuids[j], &uuids[num - 1 - i] )) {
1570 uuids[num - 1 - i].bv_len = 0;
1575 if ( uuids[num - 1 - i].bv_len == 0 ) continue;
1576 for ( j=0; j<i; j++ ) {
1577 if ( bvmatch( &uuids[num - 1 - j], &uuids[num - 1 - i] )) {
1578 uuids[num - 1 - i].bv_len = 0;
1587 SlapReply frs = { REP_RESULT };
1590 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
1591 slap_callback cb = {0};
1595 fop.o_sync_mode = 0;
1596 fop.o_callback = &cb;
1597 fop.ors_limit = NULL;
1598 fop.ors_tlimit = SLAP_NO_LIMIT;
1599 fop.ors_attrs = slap_anlist_all_attributes;
1600 fop.ors_attrsonly = 0;
1601 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
1603 af.f_choice = LDAP_FILTER_AND;
1606 mf.f_choice = LDAP_FILTER_EQUALITY;
1608 mf.f_av_desc = slap_schema.si_ad_entryUUID;
1609 mf.f_next = fop.ors_filter;
1611 fop.ors_filter = ⁡
1613 cb.sc_response = playlog_cb;
1614 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
1616 for ( i=ndel; i<num; i++ ) {
1617 if ( uuids[i].bv_len == 0 ) continue;
1619 mf.f_av_value = uuids[i];
1620 cb.sc_private = NULL;
1622 frs.sr_nentries = 0;
1623 rc = fop.o_bd->be_search( &fop, &frs );
1625 /* If entry was not found, add to delete list */
1626 if ( !cb.sc_private ) {
1627 uuids[ndel++] = uuids[i];
1630 fop.o_bd->bd_info = (BackendInfo *)on;
1633 struct berval cookie;
1635 if ( delcsn[0].bv_len ) {
1636 slap_compose_sync_cookie( op, &cookie, delcsn, srs->sr_state.rid,
1637 slap_serverID ? slap_serverID : -1 );
1639 Debug( LDAP_DEBUG_SYNC, "syncprov_playlog: cookie=%s\n", cookie.bv_val, 0, 0 );
1642 uuids[ndel].bv_val = NULL;
1643 syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET,
1644 delcsn[0].bv_len ? &cookie : NULL, 0, uuids, 1 );
1645 if ( delcsn[0].bv_len ) {
1646 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
1649 op->o_tmpfree( uuids, op->o_tmpmemctx );
1653 syncprov_op_response( Operation *op, SlapReply *rs )
1655 opcookie *opc = op->o_callback->sc_private;
1656 slap_overinst *on = opc->son;
1657 syncprov_info_t *si = on->on_bi.bi_private;
1660 if ( rs->sr_err == LDAP_SUCCESS )
1662 struct berval maxcsn;
1663 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
1664 int do_check = 0, have_psearches;
1666 ldap_pvt_thread_mutex_lock( &si->si_resp_mutex );
1668 /* Update our context CSN */
1670 maxcsn.bv_val = cbuf;
1671 maxcsn.bv_len = sizeof(cbuf);
1672 ldap_pvt_thread_rdwr_wlock( &si->si_csn_rwlock );
1674 if ( op->o_dont_replicate && op->o_tag == LDAP_REQ_MODIFY &&
1675 op->orm_modlist->sml_op == LDAP_MOD_REPLACE &&
1676 op->orm_modlist->sml_desc == slap_schema.si_ad_contextCSN ) {
1677 /* Catch contextCSN updates from syncrepl. We have to look at
1678 * all the attribute values, as there may be more than one csn
1679 * that changed, and only one can be passed in the csn queue.
1681 Modifications *mod = op->orm_modlist;
1682 int i, j, sid, csn_changed = 0;
1684 for ( i=0; i<mod->sml_numvals; i++ ) {
1685 sid = slap_parse_csn_sid( &mod->sml_values[i] );
1687 for ( j=0; j<si->si_numcsns; j++ ) {
1688 if ( sid == si->si_sids[j] ) {
1689 if ( ber_bvcmp( &mod->sml_values[i], &si->si_ctxcsn[j] ) > 0 ) {
1690 ber_bvreplace( &si->si_ctxcsn[j], &mod->sml_values[i] );
1697 if ( j == si->si_numcsns ) {
1698 value_add_one( &si->si_ctxcsn, &mod->sml_values[i] );
1700 si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
1702 si->si_sids[j] = sid;
1706 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1708 if ( csn_changed ) {
1709 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1710 have_psearches = ( si->si_ops != NULL );
1711 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1713 if ( have_psearches ) {
1714 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1715 if ( sm->sm_op->s_op->o_abandon )
1717 syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_NEW_COOKIE );
1725 if ( !BER_BVISEMPTY( &maxcsn ) ) {
1728 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1729 assert( !syn->ssyn_validate( syn, &maxcsn ));
1731 sid = slap_parse_csn_sid( &maxcsn );
1732 for ( i=0; i<si->si_numcsns; i++ ) {
1733 if ( sid == si->si_sids[i] ) {
1734 if ( ber_bvcmp( &maxcsn, &si->si_ctxcsn[i] ) > 0 ) {
1735 ber_bvreplace( &si->si_ctxcsn[i], &maxcsn );
1740 /* It's a new SID for us */
1741 if ( i == si->si_numcsns ) {
1742 value_add_one( &si->si_ctxcsn, &maxcsn );
1744 si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
1746 si->si_sids[i] = sid;
1750 /* Don't do any processing for consumer contextCSN updates */
1751 if ( op->o_dont_replicate ) {
1752 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1757 if ( si->si_chkops || si->si_chktime ) {
1758 /* Never checkpoint adding the context entry,
1761 if ( op->o_tag != LDAP_REQ_ADD ||
1762 !dn_match( &op->o_req_ndn, &si->si_contextdn )) {
1763 if ( si->si_chkops && si->si_numops >= si->si_chkops ) {
1767 if ( si->si_chktime &&
1768 (op->o_time - si->si_chklast >= si->si_chktime )) {
1769 if ( si->si_chklast ) {
1771 si->si_chklast = op->o_time;
1778 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1781 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1782 syncprov_checkpoint( op, rs, on );
1783 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1786 /* always update consumer ctx even if this is an old csn */
1787 opc->sctxcsn = maxcsn;
1789 /* Handle any persistent searches */
1790 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1791 have_psearches = ( si->si_ops != NULL );
1792 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1793 if ( have_psearches ) {
1796 case LDAP_REQ_MODIFY:
1797 case LDAP_REQ_MODRDN:
1798 case LDAP_REQ_EXTENDED:
1799 syncprov_matchops( op, opc, 0 );
1801 case LDAP_REQ_DELETE:
1802 /* for each match in opc->smatches:
1805 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1806 if ( sm->sm_op->s_op->o_abandon )
1808 syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_DELETE );
1814 /* Add any log records */
1815 if ( si->si_logs && op->o_tag != LDAP_REQ_ADD ) {
1816 syncprov_add_slog( op );
1818 leave: ldap_pvt_thread_mutex_unlock( &si->si_resp_mutex );
1820 return SLAP_CB_CONTINUE;
1823 /* We don't use a subentry to store the context CSN any more.
1824 * We expose the current context CSN as an operational attribute
1825 * of the suffix entry.
1828 syncprov_op_compare( Operation *op, SlapReply *rs )
1830 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1831 syncprov_info_t *si = on->on_bi.bi_private;
1832 int rc = SLAP_CB_CONTINUE;
1834 if ( dn_match( &op->o_req_ndn, &si->si_contextdn ) &&
1835 op->oq_compare.rs_ava->aa_desc == slap_schema.si_ad_contextCSN )
1840 e.e_name = si->si_contextdn;
1841 e.e_nname = si->si_contextdn;
1844 a.a_desc = slap_schema.si_ad_contextCSN;
1846 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1848 a.a_vals = si->si_ctxcsn;
1849 a.a_nvals = a.a_vals;
1850 a.a_numvals = si->si_numcsns;
1852 rs->sr_err = access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc,
1853 &op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL );
1854 if ( ! rs->sr_err ) {
1855 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1856 goto return_results;
1859 if ( get_assert( op ) &&
1860 ( test_filter( op, &e, get_assertion( op ) ) != LDAP_COMPARE_TRUE ) )
1862 rs->sr_err = LDAP_ASSERTION_FAILED;
1863 goto return_results;
1867 rs->sr_err = LDAP_COMPARE_FALSE;
1869 if ( attr_valfind( &a,
1870 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
1871 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
1872 &op->oq_compare.rs_ava->aa_value, NULL, op->o_tmpmemctx ) == 0 )
1874 rs->sr_err = LDAP_COMPARE_TRUE;
1879 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1881 send_ldap_result( op, rs );
1883 if( rs->sr_err == LDAP_COMPARE_FALSE || rs->sr_err == LDAP_COMPARE_TRUE ) {
1884 rs->sr_err = LDAP_SUCCESS;
1893 syncprov_op_mod( Operation *op, SlapReply *rs )
1895 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1896 syncprov_info_t *si = on->on_bi.bi_private;
1899 int have_psearches, cbsize;
1901 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1902 have_psearches = ( si->si_ops != NULL );
1903 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1905 cbsize = sizeof(slap_callback) + sizeof(opcookie) +
1906 (have_psearches ? sizeof(modinst) : 0 );
1908 cb = op->o_tmpcalloc(1, cbsize, op->o_tmpmemctx);
1909 opc = (opcookie *)(cb+1);
1911 cb->sc_response = syncprov_op_response;
1912 cb->sc_cleanup = syncprov_op_cleanup;
1913 cb->sc_private = opc;
1914 cb->sc_next = op->o_callback;
1915 op->o_callback = cb;
1919 if ( op->o_csn.bv_val ) {
1920 opc->osid = slap_parse_csn_sid( &op->o_csn );
1922 if ( op->o_controls ) {
1923 struct sync_cookie *scook =
1924 op->o_controls[slap_cids.sc_LDAPsync];
1926 opc->rsid = scook->sid;
1929 /* If there are active persistent searches, lock this operation.
1930 * See seqmod.c for the locking logic on its own.
1932 if ( have_psearches ) {
1933 modtarget *mt, mtdummy;
1936 mi = (modinst *)(opc+1);
1939 /* See if we're already modifying this entry... */
1941 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1942 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
1944 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1945 if ( mt->mt_mods == NULL ) {
1946 /* Cannot reuse this mt, as another thread is about
1947 * to release it in syncprov_op_cleanup.
1949 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1954 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1955 mt->mt_tail->mi_next = mi;
1957 /* wait for this op to get to head of list */
1958 while ( mt->mt_mods != mi ) {
1959 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1960 /* FIXME: if dynamic config can delete overlays or
1961 * databases we'll have to check for cleanup here.
1962 * Currently it's not an issue because there are
1963 * no dynamic config deletes...
1965 if ( slapd_shutdown )
1966 return SLAPD_ABANDON;
1968 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
1969 ldap_pvt_thread_yield();
1970 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1972 /* clean up if the caller is giving up */
1973 if ( op->o_abandon ) {
1975 for ( m2 = mt->mt_mods; m2->mi_next != mi;
1977 m2->mi_next = mi->mi_next;
1978 if ( mt->mt_tail == mi ) mt->mt_tail = m2;
1979 op->o_tmpfree( cb, op->o_tmpmemctx );
1980 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1981 return SLAPD_ABANDON;
1984 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1986 /* Record that we're modifying this entry now */
1987 mt = ch_malloc( sizeof(modtarget) );
1990 mt->mt_op = mi->mi_op;
1991 ldap_pvt_thread_mutex_init( &mt->mt_mutex );
1992 avl_insert( &si->si_mods, mt, sp_avl_cmp, avl_dup_error );
1993 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1998 if (( have_psearches || si->si_logs ) && op->o_tag != LDAP_REQ_ADD )
1999 syncprov_matchops( op, opc, 1 );
2001 return SLAP_CB_CONTINUE;
2005 syncprov_op_extended( Operation *op, SlapReply *rs )
2007 if ( exop_is_write( op ))
2008 return syncprov_op_mod( op, rs );
2010 return SLAP_CB_CONTINUE;
2013 typedef struct searchstate {
2014 slap_overinst *ss_on;
2016 BerVarray ss_ctxcsn;
2019 #define SS_PRESENT 0x01
2020 #define SS_CHANGED 0x02
2025 syncprov_search_cleanup( Operation *op, SlapReply *rs )
2027 if ( rs->sr_ctrls ) {
2028 op->o_tmpfree( rs->sr_ctrls[0], op->o_tmpmemctx );
2029 op->o_tmpfree( rs->sr_ctrls, op->o_tmpmemctx );
2030 rs->sr_ctrls = NULL;
2035 typedef struct SyncOperationBuffer {
2039 AttributeName sob_extra; /* not always present */
2040 /* Further data allocated here */
2041 } SyncOperationBuffer;
2044 syncprov_detach_op( Operation *op, syncops *so, slap_overinst *on )
2046 SyncOperationBuffer *sopbuf2;
2051 GroupAssertion *g1, *g2;
2053 /* count the search attrs */
2054 for (i=0; op->ors_attrs && !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2055 alen += op->ors_attrs[i].an_name.bv_len + 1;
2057 /* Make a new copy of the operation */
2058 size = offsetof( SyncOperationBuffer, sob_extra ) +
2059 (i ? ( (i+1) * sizeof(AttributeName) + alen) : 0) +
2060 op->o_req_dn.bv_len + 1 +
2061 op->o_req_ndn.bv_len + 1 +
2062 op->o_ndn.bv_len + 1 +
2063 so->s_filterstr.bv_len + 1;
2064 sopbuf2 = ch_calloc( 1, size );
2065 op2 = &sopbuf2->sob_op;
2066 op2->o_hdr = &sopbuf2->sob_hdr;
2067 LDAP_SLIST_FIRST(&op2->o_extra) = &sopbuf2->sob_oe;
2069 /* Copy the fields we care about explicitly, leave the rest alone */
2070 *op2->o_hdr = *op->o_hdr;
2071 op2->o_tag = op->o_tag;
2072 op2->o_time = op->o_time;
2073 op2->o_bd = on->on_info->oi_origdb;
2074 op2->o_request = op->o_request;
2075 op2->o_managedsait = op->o_managedsait;
2076 LDAP_SLIST_FIRST(&op2->o_extra)->oe_key = on;
2077 LDAP_SLIST_NEXT(LDAP_SLIST_FIRST(&op2->o_extra), oe_next) = NULL;
2079 ptr = (char *) sopbuf2 + offsetof( SyncOperationBuffer, sob_extra );
2081 op2->ors_attrs = (AttributeName *) ptr;
2082 ptr = (char *) &op2->ors_attrs[i+1];
2083 for (i=0; !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2084 op2->ors_attrs[i] = op->ors_attrs[i];
2085 op2->ors_attrs[i].an_name.bv_val = ptr;
2086 ptr = lutil_strcopy( ptr, op->ors_attrs[i].an_name.bv_val ) + 1;
2088 BER_BVZERO( &op2->ors_attrs[i].an_name );
2091 op2->o_authz = op->o_authz;
2092 op2->o_ndn.bv_val = ptr;
2093 ptr = lutil_strcopy(ptr, op->o_ndn.bv_val) + 1;
2094 op2->o_dn = op2->o_ndn;
2095 op2->o_req_dn.bv_len = op->o_req_dn.bv_len;
2096 op2->o_req_dn.bv_val = ptr;
2097 ptr = lutil_strcopy(ptr, op->o_req_dn.bv_val) + 1;
2098 op2->o_req_ndn.bv_len = op->o_req_ndn.bv_len;
2099 op2->o_req_ndn.bv_val = ptr;
2100 ptr = lutil_strcopy(ptr, op->o_req_ndn.bv_val) + 1;
2101 op2->ors_filterstr.bv_val = ptr;
2102 strcpy( ptr, so->s_filterstr.bv_val );
2103 op2->ors_filterstr.bv_len = so->s_filterstr.bv_len;
2105 /* Skip the AND/GE clause that we stuck on in front */
2106 if ( so->s_flags & PS_FIX_FILTER ) {
2107 op2->ors_filter = op->ors_filter->f_and->f_next;
2108 so->s_flags ^= PS_FIX_FILTER;
2110 op2->ors_filter = op->ors_filter;
2112 op2->ors_filter = filter_dup( op2->ors_filter, NULL );
2115 /* Copy any cached group ACLs individually */
2116 op2->o_groups = NULL;
2117 for ( g1=op->o_groups; g1; g1=g1->ga_next ) {
2118 g2 = ch_malloc( sizeof(GroupAssertion) + g1->ga_len );
2120 strcpy( g2->ga_ndn, g1->ga_ndn );
2121 g2->ga_next = op2->o_groups;
2124 /* Don't allow any further group caching */
2125 op2->o_do_not_cache = 1;
2127 /* Add op2 to conn so abandon will find us */
2128 op->o_conn->c_n_ops_executing++;
2129 op->o_conn->c_n_ops_completed--;
2130 LDAP_STAILQ_INSERT_TAIL( &op->o_conn->c_ops, op2, o_next );
2131 so->s_flags |= PS_IS_DETACHED;
2133 /* Prevent anyone else from trying to send a result for this op */
2138 syncprov_search_response( Operation *op, SlapReply *rs )
2140 searchstate *ss = op->o_callback->sc_private;
2141 slap_overinst *on = ss->ss_on;
2142 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2143 sync_control *srs = op->o_controls[slap_cids.sc_LDAPsync];
2145 if ( rs->sr_type == REP_SEARCH || rs->sr_type == REP_SEARCHREF ) {
2147 /* If we got a referral without a referral object, there's
2148 * something missing that we cannot replicate. Just ignore it.
2149 * The consumer will abort because we didn't send the expected
2152 if ( !rs->sr_entry ) {
2153 assert( rs->sr_entry != NULL );
2154 Debug( LDAP_DEBUG_ANY, "bogus referral in context\n",0,0,0 );
2155 return SLAP_CB_CONTINUE;
2157 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryCSN );
2158 if ( a == NULL && rs->sr_operational_attrs != NULL ) {
2159 a = attr_find( rs->sr_operational_attrs, slap_schema.si_ad_entryCSN );
2163 sid = slap_parse_csn_sid( &a->a_nvals[0] );
2165 /* Don't send changed entries back to the originator */
2166 if ( sid == srs->sr_state.sid && srs->sr_state.numcsns ) {
2167 Debug( LDAP_DEBUG_SYNC,
2168 "Entry %s changed by peer, ignored\n",
2169 rs->sr_entry->e_name.bv_val, 0, 0 );
2170 return LDAP_SUCCESS;
2173 /* If not a persistent search */
2175 /* Make sure entry is less than the snapshot'd contextCSN */
2176 for ( i=0; i<ss->ss_numcsns; i++ ) {
2177 if ( sid == ss->ss_sids[i] && ber_bvcmp( &a->a_nvals[0],
2178 &ss->ss_ctxcsn[i] ) > 0 ) {
2179 Debug( LDAP_DEBUG_SYNC,
2180 "Entry %s CSN %s greater than snapshot %s\n",
2181 rs->sr_entry->e_name.bv_val,
2182 a->a_nvals[0].bv_val,
2183 ss->ss_ctxcsn[i].bv_val );
2184 return LDAP_SUCCESS;
2189 /* Don't send old entries twice */
2190 if ( srs->sr_state.ctxcsn ) {
2191 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2192 if ( sid == srs->sr_state.sids[i] &&
2193 ber_bvcmp( &a->a_nvals[0],
2194 &srs->sr_state.ctxcsn[i] )<= 0 ) {
2195 Debug( LDAP_DEBUG_SYNC,
2196 "Entry %s CSN %s older or equal to ctx %s\n",
2197 rs->sr_entry->e_name.bv_val,
2198 a->a_nvals[0].bv_val,
2199 srs->sr_state.ctxcsn[i].bv_val );
2200 return LDAP_SUCCESS;
2205 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2207 rs->sr_ctrls[1] = NULL;
2208 /* If we're in delta-sync mode, always send a cookie */
2209 if ( si->si_nopres && si->si_usehint && a ) {
2210 struct berval cookie;
2211 slap_compose_sync_cookie( op, &cookie, a->a_nvals, srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
2212 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2213 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 1, &cookie );
2215 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2216 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 0, NULL );
2218 } else if ( rs->sr_type == REP_RESULT && rs->sr_err == LDAP_SUCCESS ) {
2219 struct berval cookie = BER_BVNULL;
2221 if ( ( ss->ss_flags & SS_CHANGED ) &&
2222 ss->ss_ctxcsn && !BER_BVISNULL( &ss->ss_ctxcsn[0] )) {
2223 slap_compose_sync_cookie( op, &cookie, ss->ss_ctxcsn,
2224 srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
2226 Debug( LDAP_DEBUG_SYNC, "syncprov_search_response: cookie=%s\n", cookie.bv_val, 0, 0 );
2229 /* Is this a regular refresh?
2230 * Note: refresh never gets here if there were no changes
2233 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2235 rs->sr_ctrls[1] = NULL;
2236 rs->sr_err = syncprov_done_ctrl( op, rs, rs->sr_ctrls,
2237 0, 1, &cookie, ( ss->ss_flags & SS_PRESENT ) ? LDAP_SYNC_REFRESH_PRESENTS :
2238 LDAP_SYNC_REFRESH_DELETES );
2239 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2241 /* It's RefreshAndPersist, transition to Persist phase */
2242 syncprov_sendinfo( op, rs, ( ss->ss_flags & SS_PRESENT ) ?
2243 LDAP_TAG_SYNC_REFRESH_PRESENT : LDAP_TAG_SYNC_REFRESH_DELETE,
2244 ( ss->ss_flags & SS_CHANGED ) ? &cookie : NULL,
2246 if ( !BER_BVISNULL( &cookie ))
2247 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2249 /* Detach this Op from frontend control */
2250 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
2252 /* But not if this connection was closed along the way */
2253 if ( op->o_abandon ) {
2254 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2255 /* syncprov_ab_cleanup will free this syncop */
2256 return SLAPD_ABANDON;
2259 ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex );
2260 /* Turn off the refreshing flag */
2261 ss->ss_so->s_flags ^= PS_IS_REFRESHING;
2263 syncprov_detach_op( op, ss->ss_so, on );
2265 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2267 /* If there are queued responses, fire them off */
2268 if ( ss->ss_so->s_res )
2269 syncprov_qstart( ss->ss_so );
2270 ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
2273 return LDAP_SUCCESS;
2277 return SLAP_CB_CONTINUE;
2281 syncprov_op_search( Operation *op, SlapReply *rs )
2283 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2284 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2286 int gotstate = 0, changed = 0, do_present = 0;
2287 syncops *sop = NULL;
2291 int i, *sids, numcsns;
2292 struct berval mincsn;
2294 if ( !(op->o_sync_mode & SLAP_SYNC_REFRESH) ) return SLAP_CB_CONTINUE;
2296 if ( op->ors_deref & LDAP_DEREF_SEARCHING ) {
2297 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR, "illegal value for derefAliases" );
2301 srs = op->o_controls[slap_cids.sc_LDAPsync];
2303 /* If this is a persistent search, set it up right away */
2304 if ( op->o_sync_mode & SLAP_SYNC_PERSIST ) {
2314 so.s_flags = PS_IS_REFRESHING | PS_FIND_BASE;
2315 /* syncprov_findbase expects to be called as a callback... */
2316 sc.sc_private = &opc;
2318 ldap_pvt_thread_mutex_init( &so.s_mutex );
2319 cb = op->o_callback;
2320 op->o_callback = ≻
2321 rs->sr_err = syncprov_findbase( op, &fc );
2322 op->o_callback = cb;
2323 ldap_pvt_thread_mutex_destroy( &so.s_mutex );
2325 if ( rs->sr_err != LDAP_SUCCESS ) {
2326 send_ldap_result( op, rs );
2329 sop = ch_malloc( sizeof( syncops ));
2331 ldap_pvt_thread_mutex_init( &sop->s_mutex );
2332 sop->s_rid = srs->sr_state.rid;
2333 sop->s_sid = srs->sr_state.sid;
2336 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2337 sop->s_next = si->si_ops;
2339 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2342 /* snapshot the ctxcsn */
2343 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2344 numcsns = si->si_numcsns;
2346 ber_bvarray_dup_x( &ctxcsn, si->si_ctxcsn, op->o_tmpmemctx );
2347 sids = op->o_tmpalloc( numcsns * sizeof(int), op->o_tmpmemctx );
2348 for ( i=0; i<numcsns; i++ )
2349 sids[i] = si->si_sids[i];
2354 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2356 /* If we have a cookie, handle the PRESENT lookups */
2357 if ( srs->sr_state.ctxcsn ) {
2361 /* If we don't have any CSN of our own yet, pretend nothing
2367 if ( !si->si_nopres )
2368 do_present = SS_PRESENT;
2370 /* If there are SIDs we don't recognize in the cookie, drop them */
2371 for (i=0; i<srs->sr_state.numcsns; ) {
2372 for (j=0; j<numcsns; j++) {
2373 if ( srs->sr_state.sids[i] == sids[j] ) {
2378 if ( j == numcsns ) {
2379 struct berval tmp = srs->sr_state.ctxcsn[i];
2380 j = srs->sr_state.numcsns - 1;
2381 srs->sr_state.ctxcsn[i] = srs->sr_state.ctxcsn[j];
2383 srs->sr_state.ctxcsn[j] = tmp;
2384 srs->sr_state.numcsns = j;
2385 srs->sr_state.sids[i] = srs->sr_state.sids[j];
2391 /* Find the smallest CSN */
2392 mincsn = srs->sr_state.ctxcsn[0];
2393 for ( i=1; i<srs->sr_state.numcsns; i++ ) {
2394 if ( ber_bvcmp( &mincsn, &srs->sr_state.ctxcsn[i] ) > 0 )
2395 mincsn = srs->sr_state.ctxcsn[i];
2398 /* If nothing has changed, shortcut it */
2399 if ( srs->sr_state.numcsns == numcsns ) {
2401 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2402 for ( j=0; j<numcsns; j++ ) {
2403 if ( srs->sr_state.sids[i] != sids[j] )
2405 newer = ber_bvcmp( &srs->sr_state.ctxcsn[i], &ctxcsn[j] );
2406 /* If our state is newer, tell consumer about changes */
2408 changed = SS_CHANGED;
2409 else if ( newer > 0 ) {
2410 /* our state is older, tell consumer nothing */
2412 syncops **sp = &si->si_ops;
2414 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2415 while ( *sp != sop )
2416 sp = &(*sp)->s_next;
2418 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2421 rs->sr_err = LDAP_SUCCESS;
2422 rs->sr_ctrls = NULL;
2423 send_ldap_result( op, rs );
2433 no_change: if ( !(op->o_sync_mode & SLAP_SYNC_PERSIST) ) {
2434 LDAPControl *ctrls[2];
2438 syncprov_done_ctrl( op, rs, ctrls, 0, 0,
2439 NULL, LDAP_SYNC_REFRESH_DELETES );
2440 rs->sr_ctrls = ctrls;
2441 rs->sr_err = LDAP_SUCCESS;
2442 send_ldap_result( op, rs );
2443 rs->sr_ctrls = NULL;
2449 /* consumer doesn't have the right number of CSNs */
2450 changed = SS_CHANGED;
2452 /* Do we have a sessionlog for this search? */
2455 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
2456 /* Are there any log entries, and is the consumer state
2457 * present in the session log?
2459 if ( sl->sl_num > 0 && ber_bvcmp( &mincsn, &sl->sl_mincsn ) >= 0 ) {
2461 /* mutex is unlocked in playlog */
2462 syncprov_playlog( op, rs, sl, srs, ctxcsn, numcsns, sids );
2464 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
2467 /* Is the CSN still present in the database? */
2468 if ( syncprov_findcsn( op, FIND_CSN ) != LDAP_SUCCESS ) {
2469 /* No, so a reload is required */
2470 /* the 2.2 consumer doesn't send this hint */
2471 if ( si->si_usehint && srs->sr_rhint == 0 ) {
2473 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2475 op->o_tmpfree( sids, op->o_tmpmemctx );
2476 send_ldap_error( op, rs, LDAP_SYNC_REFRESH_REQUIRED, "sync cookie is stale" );
2479 if ( srs->sr_state.ctxcsn ) {
2480 ber_bvarray_free_x( srs->sr_state.ctxcsn, op->o_tmpmemctx );
2481 srs->sr_state.ctxcsn = NULL;
2483 if ( srs->sr_state.sids ) {
2484 slap_sl_free( srs->sr_state.sids, op->o_tmpmemctx );
2485 srs->sr_state.sids = NULL;
2487 srs->sr_state.numcsns = 0;
2490 /* If changed and doing Present lookup, send Present UUIDs */
2491 if ( do_present && syncprov_findcsn( op, FIND_PRESENT ) !=
2494 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2496 op->o_tmpfree( sids, op->o_tmpmemctx );
2497 send_ldap_result( op, rs );
2502 /* No consumer state, assume something has changed */
2503 changed = SS_CHANGED;
2507 /* Append CSN range to search filter, save original filter
2508 * for persistent search evaluation
2511 sop->s_filterstr= op->ors_filterstr;
2514 /* If something changed, find the changes */
2515 if ( gotstate && changed ) {
2516 Filter *fand, *fava;
2518 fand = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2519 fand->f_choice = LDAP_FILTER_AND;
2520 fand->f_next = NULL;
2521 fava = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2523 fava->f_choice = LDAP_FILTER_GE;
2524 fava->f_ava = op->o_tmpalloc( sizeof(AttributeAssertion), op->o_tmpmemctx );
2525 fava->f_ava->aa_desc = slap_schema.si_ad_entryCSN;
2526 #ifdef LDAP_COMP_MATCH
2527 fava->f_ava->aa_cf = NULL;
2529 ber_dupbv_x( &fava->f_ava->aa_value, &mincsn, op->o_tmpmemctx );
2530 fava->f_next = op->ors_filter;
2531 op->ors_filter = fand;
2532 filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2534 sop->s_flags |= PS_FIX_FILTER;
2537 /* Let our callback add needed info to returned entries */
2538 cb = op->o_tmpcalloc(1, sizeof(slap_callback)+sizeof(searchstate), op->o_tmpmemctx);
2539 ss = (searchstate *)(cb+1);
2542 ss->ss_flags = do_present | changed;
2543 ss->ss_ctxcsn = ctxcsn;
2544 ss->ss_numcsns = numcsns;
2546 cb->sc_response = syncprov_search_response;
2547 cb->sc_cleanup = syncprov_search_cleanup;
2548 cb->sc_private = ss;
2549 cb->sc_next = op->o_callback;
2550 op->o_callback = cb;
2552 /* If this is a persistent search and no changes were reported during
2553 * the refresh phase, just invoke the response callback to transition
2554 * us into persist phase
2557 rs->sr_err = LDAP_SUCCESS;
2558 rs->sr_nentries = 0;
2559 send_ldap_result( op, rs );
2562 return SLAP_CB_CONTINUE;
2566 syncprov_operational(
2570 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2571 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2573 /* This prevents generating unnecessarily; frontend will strip
2574 * any statically stored copy.
2576 if ( op->o_sync != SLAP_CONTROL_NONE )
2577 return SLAP_CB_CONTINUE;
2579 if ( rs->sr_entry &&
2580 dn_match( &rs->sr_entry->e_nname, &si->si_contextdn )) {
2582 if ( SLAP_OPATTRS( rs->sr_attr_flags ) ||
2583 ad_inlist( slap_schema.si_ad_contextCSN, rs->sr_attrs )) {
2584 Attribute *a, **ap = NULL;
2586 for ( a=rs->sr_entry->e_attrs; a; a=a->a_next ) {
2587 if ( a->a_desc == slap_schema.si_ad_contextCSN )
2591 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2592 if ( si->si_ctxcsn ) {
2594 for ( ap = &rs->sr_operational_attrs; *ap;
2595 ap=&(*ap)->a_next );
2597 a = attr_alloc( slap_schema.si_ad_contextCSN );
2602 if ( !(rs->sr_flags & REP_ENTRY_MODIFIABLE) ) {
2603 Entry *e = entry_dup( rs->sr_entry );
2604 if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
2605 overlay_entry_release_ov( op, rs->sr_entry, 0, on );
2606 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
2607 } else if ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) {
2608 entry_free( rs->sr_entry );
2612 REP_ENTRY_MODIFIABLE|REP_ENTRY_MUSTBEFREED;
2613 a = attr_find( rs->sr_entry->e_attrs,
2614 slap_schema.si_ad_contextCSN );
2616 if ( a->a_nvals != a->a_vals ) {
2617 ber_bvarray_free( a->a_nvals );
2620 ber_bvarray_free( a->a_vals );
2624 attr_valadd( a, si->si_ctxcsn, si->si_ctxcsn, si->si_numcsns );
2626 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2629 return SLAP_CB_CONTINUE;
2639 static ConfigDriver sp_cf_gen;
2641 static ConfigTable spcfg[] = {
2642 { "syncprov-checkpoint", "ops> <minutes", 3, 3, 0, ARG_MAGIC|SP_CHKPT,
2643 sp_cf_gen, "( OLcfgOvAt:1.1 NAME 'olcSpCheckpoint' "
2644 "DESC 'ContextCSN checkpoint interval in ops and minutes' "
2645 "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
2646 { "syncprov-sessionlog", "ops", 2, 2, 0, ARG_INT|ARG_MAGIC|SP_SESSL,
2647 sp_cf_gen, "( OLcfgOvAt:1.2 NAME 'olcSpSessionlog' "
2648 "DESC 'Session log size in ops' "
2649 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
2650 { "syncprov-nopresent", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_NOPRES,
2651 sp_cf_gen, "( OLcfgOvAt:1.3 NAME 'olcSpNoPresent' "
2652 "DESC 'Omit Present phase processing' "
2653 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2654 { "syncprov-reloadhint", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_USEHINT,
2655 sp_cf_gen, "( OLcfgOvAt:1.4 NAME 'olcSpReloadHint' "
2656 "DESC 'Observe Reload Hint in Request control' "
2657 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2658 { NULL, NULL, 0, 0, 0, ARG_IGNORED }
2661 static ConfigOCs spocs[] = {
2662 { "( OLcfgOvOc:1.1 "
2663 "NAME 'olcSyncProvConfig' "
2664 "DESC 'SyncRepl Provider configuration' "
2665 "SUP olcOverlayConfig "
2666 "MAY ( olcSpCheckpoint "
2667 "$ olcSpSessionlog "
2669 "$ olcSpReloadHint "
2671 Cft_Overlay, spcfg },
2676 sp_cf_gen(ConfigArgs *c)
2678 slap_overinst *on = (slap_overinst *)c->bi;
2679 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2682 if ( c->op == SLAP_CONFIG_EMIT ) {
2683 switch ( c->type ) {
2685 if ( si->si_chkops || si->si_chktime ) {
2687 /* we assume si_chktime is a multiple of 60
2688 * because the parsed value was originally
2689 * multiplied by 60 */
2690 bv.bv_len = snprintf( c->cr_msg, sizeof( c->cr_msg ),
2691 "%d %d", si->si_chkops, si->si_chktime/60 );
2692 if ( bv.bv_len >= sizeof( c->cr_msg ) ) {
2695 bv.bv_val = c->cr_msg;
2696 value_add_one( &c->rvalue_vals, &bv );
2703 if ( si->si_logs ) {
2704 c->value_int = si->si_logs->sl_size;
2710 if ( si->si_nopres ) {
2717 if ( si->si_usehint ) {
2725 } else if ( c->op == LDAP_MOD_DELETE ) {
2726 switch ( c->type ) {
2733 si->si_logs->sl_size = 0;
2735 rc = LDAP_NO_SUCH_ATTRIBUTE;
2738 if ( si->si_nopres )
2741 rc = LDAP_NO_SUCH_ATTRIBUTE;
2744 if ( si->si_usehint )
2747 rc = LDAP_NO_SUCH_ATTRIBUTE;
2752 switch ( c->type ) {
2754 if ( lutil_atoi( &si->si_chkops, c->argv[1] ) != 0 ) {
2755 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint ops # \"%s\"",
2756 c->argv[0], c->argv[1] );
2757 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2758 "%s: %s\n", c->log, c->cr_msg, 0 );
2759 return ARG_BAD_CONF;
2761 if ( si->si_chkops <= 0 ) {
2762 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint ops # \"%d\"",
2763 c->argv[0], si->si_chkops );
2764 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2765 "%s: %s\n", c->log, c->cr_msg, 0 );
2766 return ARG_BAD_CONF;
2768 if ( lutil_atoi( &si->si_chktime, c->argv[2] ) != 0 ) {
2769 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint time \"%s\"",
2770 c->argv[0], c->argv[1] );
2771 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2772 "%s: %s\n", c->log, c->cr_msg, 0 );
2773 return ARG_BAD_CONF;
2775 if ( si->si_chktime <= 0 ) {
2776 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint time \"%d\"",
2777 c->argv[0], si->si_chkops );
2778 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2779 "%s: %s\n", c->log, c->cr_msg, 0 );
2780 return ARG_BAD_CONF;
2782 si->si_chktime *= 60;
2786 int size = c->value_int;
2789 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s size %d is negative",
2791 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2792 "%s: %s\n", c->log, c->cr_msg, 0 );
2793 return ARG_BAD_CONF;
2797 sl = ch_malloc( sizeof( sessionlog ) + LDAP_PVT_CSNSTR_BUFSIZE );
2798 sl->sl_mincsn.bv_val = (char *)(sl+1);
2799 sl->sl_mincsn.bv_len = 0;
2801 sl->sl_head = sl->sl_tail = NULL;
2802 ldap_pvt_thread_mutex_init( &sl->sl_mutex );
2809 si->si_nopres = c->value_int;
2812 si->si_usehint = c->value_int;
2818 /* ITS#3456 we cannot run this search on the main thread, must use a
2819 * child thread in order to insure we have a big enough stack.
2826 syncprov_findcsn( ptr, FIND_MAXCSN );
2830 /* Read any existing contextCSN from the underlying db.
2831 * Then search for any entries newer than that. If no value exists,
2832 * just generate it. Cache whatever result.
2840 slap_overinst *on = (slap_overinst *) be->bd_info;
2841 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2843 Connection conn = { 0 };
2844 OperationBuffer opbuf;
2849 void *thrctx = NULL;
2851 if ( !SLAP_LASTMOD( be )) {
2852 Debug( LDAP_DEBUG_ANY,
2853 "syncprov_db_open: invalid config, lastmod must be enabled\n", 0, 0, 0 );
2857 if ( slapMode & SLAP_TOOL_MODE ) {
2861 rc = overlay_register_control( be, LDAP_CONTROL_SYNC );
2866 thrctx = ldap_pvt_thread_pool_context();
2867 connection_fake_init2( &conn, &opbuf, thrctx, 0 );
2870 op->o_dn = be->be_rootdn;
2871 op->o_ndn = be->be_rootndn;
2873 if ( SLAP_SYNC_SUBENTRY( be )) {
2874 build_new_dn( &si->si_contextdn, be->be_nsuffix,
2875 (struct berval *)&slap_ldapsync_cn_bv, NULL );
2877 si->si_contextdn = be->be_nsuffix[0];
2879 rc = overlay_entry_get_ov( op, &si->si_contextdn, NULL,
2880 slap_schema.si_ad_contextCSN, 0, &e, on );
2883 ldap_pvt_thread_t tid;
2885 a = attr_find( e->e_attrs, slap_schema.si_ad_contextCSN );
2887 ber_bvarray_dup_x( &si->si_ctxcsn, a->a_vals, NULL );
2888 si->si_numcsns = a->a_numvals;
2889 si->si_sids = slap_parse_csn_sids( si->si_ctxcsn, a->a_numvals, NULL );
2891 overlay_entry_release_ov( op, e, 0, on );
2892 if ( si->si_ctxcsn && !SLAP_DBCLEAN( be )) {
2893 op->o_req_dn = be->be_suffix[0];
2894 op->o_req_ndn = be->be_nsuffix[0];
2895 op->ors_scope = LDAP_SCOPE_SUBTREE;
2896 ldap_pvt_thread_create( &tid, 0, syncprov_db_otask, op );
2897 ldap_pvt_thread_join( tid, NULL );
2901 /* Didn't find a contextCSN, should we generate one? */
2902 if ( !si->si_ctxcsn ) {
2903 char csnbuf[ LDAP_PVT_CSNSTR_BUFSIZE ];
2906 if ( SLAP_SYNC_SHADOW( op->o_bd )) {
2907 /* If we're also a consumer, then don't generate anything.
2908 * Wait for our provider to send it to us, or for a local
2909 * modify if we have multimaster.
2913 csn.bv_val = csnbuf;
2914 csn.bv_len = sizeof( csnbuf );
2915 slap_get_csn( op, &csn, 0 );
2916 value_add_one( &si->si_ctxcsn, &csn );
2918 si->si_sids = ch_malloc( sizeof(int) );
2919 si->si_sids[0] = slap_serverID;
2921 /* make sure we do a checkpoint on close */
2926 op->o_bd->bd_info = (BackendInfo *)on;
2930 /* Write the current contextCSN into the underlying db.
2938 slap_overinst *on = (slap_overinst *) be->bd_info;
2939 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2941 if ( slapMode & SLAP_TOOL_MODE ) {
2944 if ( si->si_numops ) {
2945 Connection conn = {0};
2946 OperationBuffer opbuf;
2948 SlapReply rs = {REP_RESULT};
2951 thrctx = ldap_pvt_thread_pool_context();
2952 connection_fake_init2( &conn, &opbuf, thrctx, 0 );
2955 op->o_dn = be->be_rootdn;
2956 op->o_ndn = be->be_rootndn;
2957 syncprov_checkpoint( op, &rs, on );
2969 slap_overinst *on = (slap_overinst *)be->bd_info;
2970 syncprov_info_t *si;
2972 if ( SLAP_ISGLOBALOVERLAY( be ) ) {
2973 Debug( LDAP_DEBUG_ANY,
2974 "syncprov must be instantiated within a database.\n",
2979 si = ch_calloc(1, sizeof(syncprov_info_t));
2980 on->on_bi.bi_private = si;
2981 ldap_pvt_thread_rdwr_init( &si->si_csn_rwlock );
2982 ldap_pvt_thread_mutex_init( &si->si_ops_mutex );
2983 ldap_pvt_thread_mutex_init( &si->si_mods_mutex );
2984 ldap_pvt_thread_mutex_init( &si->si_resp_mutex );
2986 csn_anlist[0].an_desc = slap_schema.si_ad_entryCSN;
2987 csn_anlist[0].an_name = slap_schema.si_ad_entryCSN->ad_cname;
2988 csn_anlist[1].an_desc = slap_schema.si_ad_entryUUID;
2989 csn_anlist[1].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2991 uuid_anlist[0].an_desc = slap_schema.si_ad_entryUUID;
2992 uuid_anlist[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2998 syncprov_db_destroy(
3003 slap_overinst *on = (slap_overinst *)be->bd_info;
3004 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3007 if ( si->si_logs ) {
3008 slog_entry *se = si->si_logs->sl_head;
3011 slog_entry *se_next = se->se_next;
3016 ch_free( si->si_logs );
3018 if ( si->si_ctxcsn )
3019 ber_bvarray_free( si->si_ctxcsn );
3021 ch_free( si->si_sids );
3022 ldap_pvt_thread_mutex_destroy( &si->si_resp_mutex );
3023 ldap_pvt_thread_mutex_destroy( &si->si_mods_mutex );
3024 ldap_pvt_thread_mutex_destroy( &si->si_ops_mutex );
3025 ldap_pvt_thread_rdwr_destroy( &si->si_csn_rwlock );
3032 static int syncprov_parseCtrl (
3038 BerElementBuffer berbuf;
3039 BerElement *ber = (BerElement *)&berbuf;
3042 struct berval cookie = BER_BVNULL;
3046 if ( op->o_sync != SLAP_CONTROL_NONE ) {
3047 rs->sr_text = "Sync control specified multiple times";
3048 return LDAP_PROTOCOL_ERROR;
3051 if ( op->o_pagedresults != SLAP_CONTROL_NONE ) {
3052 rs->sr_text = "Sync control specified with pagedResults control";
3053 return LDAP_PROTOCOL_ERROR;
3056 if ( BER_BVISNULL( &ctrl->ldctl_value ) ) {
3057 rs->sr_text = "Sync control value is absent";
3058 return LDAP_PROTOCOL_ERROR;
3061 if ( BER_BVISEMPTY( &ctrl->ldctl_value ) ) {
3062 rs->sr_text = "Sync control value is empty";
3063 return LDAP_PROTOCOL_ERROR;
3066 /* Parse the control value
3067 * syncRequestValue ::= SEQUENCE {
3072 * refreshAndPersist (3)
3074 * cookie syncCookie OPTIONAL
3078 ber_init2( ber, &ctrl->ldctl_value, 0 );
3080 if ( (tag = ber_scanf( ber, "{i" /*}*/, &mode )) == LBER_ERROR ) {
3081 rs->sr_text = "Sync control : mode decoding error";
3082 return LDAP_PROTOCOL_ERROR;
3086 case LDAP_SYNC_REFRESH_ONLY:
3087 mode = SLAP_SYNC_REFRESH;
3089 case LDAP_SYNC_REFRESH_AND_PERSIST:
3090 mode = SLAP_SYNC_REFRESH_AND_PERSIST;
3093 rs->sr_text = "Sync control : unknown update mode";
3094 return LDAP_PROTOCOL_ERROR;
3097 tag = ber_peek_tag( ber, &len );
3099 if ( tag == LDAP_TAG_SYNC_COOKIE ) {
3100 if (( ber_scanf( ber, /*{*/ "m", &cookie )) == LBER_ERROR ) {
3101 rs->sr_text = "Sync control : cookie decoding error";
3102 return LDAP_PROTOCOL_ERROR;
3104 tag = ber_peek_tag( ber, &len );
3106 if ( tag == LDAP_TAG_RELOAD_HINT ) {
3107 if (( ber_scanf( ber, /*{*/ "b", &rhint )) == LBER_ERROR ) {
3108 rs->sr_text = "Sync control : rhint decoding error";
3109 return LDAP_PROTOCOL_ERROR;
3112 if (( ber_scanf( ber, /*{*/ "}")) == LBER_ERROR ) {
3113 rs->sr_text = "Sync control : decoding error";
3114 return LDAP_PROTOCOL_ERROR;
3116 sr = op->o_tmpcalloc( 1, sizeof(struct sync_control), op->o_tmpmemctx );
3117 sr->sr_rhint = rhint;
3118 if (!BER_BVISNULL(&cookie)) {
3119 ber_dupbv_x( &sr->sr_state.octet_str, &cookie, op->o_tmpmemctx );
3120 /* If parse fails, pretend no cookie was sent */
3121 if ( slap_parse_sync_cookie( &sr->sr_state, op->o_tmpmemctx ) ||
3122 sr->sr_state.rid == -1 ) {
3123 if ( sr->sr_state.ctxcsn ) {
3124 ber_bvarray_free_x( sr->sr_state.ctxcsn, op->o_tmpmemctx );
3125 sr->sr_state.ctxcsn = NULL;
3127 sr->sr_state.numcsns = 0;
3131 op->o_controls[slap_cids.sc_LDAPsync] = sr;
3133 op->o_sync = ctrl->ldctl_iscritical
3134 ? SLAP_CONTROL_CRITICAL
3135 : SLAP_CONTROL_NONCRITICAL;
3137 op->o_sync_mode |= mode; /* o_sync_mode shares o_sync */
3139 return LDAP_SUCCESS;
3142 /* This overlay is set up for dynamic loading via moduleload. For static
3143 * configuration, you'll need to arrange for the slap_overinst to be
3144 * initialized and registered by some other function inside slapd.
3147 static slap_overinst syncprov;
3150 syncprov_initialize()
3154 rc = register_supported_control( LDAP_CONTROL_SYNC,
3155 SLAP_CTRL_SEARCH, NULL,
3156 syncprov_parseCtrl, &slap_cids.sc_LDAPsync );
3157 if ( rc != LDAP_SUCCESS ) {
3158 Debug( LDAP_DEBUG_ANY,
3159 "syncprov_init: Failed to register control %d\n", rc, 0, 0 );
3163 syncprov.on_bi.bi_type = "syncprov";
3164 syncprov.on_bi.bi_db_init = syncprov_db_init;
3165 syncprov.on_bi.bi_db_destroy = syncprov_db_destroy;
3166 syncprov.on_bi.bi_db_open = syncprov_db_open;
3167 syncprov.on_bi.bi_db_close = syncprov_db_close;
3169 syncprov.on_bi.bi_op_abandon = syncprov_op_abandon;
3170 syncprov.on_bi.bi_op_cancel = syncprov_op_abandon;
3172 syncprov.on_bi.bi_op_add = syncprov_op_mod;
3173 syncprov.on_bi.bi_op_compare = syncprov_op_compare;
3174 syncprov.on_bi.bi_op_delete = syncprov_op_mod;
3175 syncprov.on_bi.bi_op_modify = syncprov_op_mod;
3176 syncprov.on_bi.bi_op_modrdn = syncprov_op_mod;
3177 syncprov.on_bi.bi_op_search = syncprov_op_search;
3178 syncprov.on_bi.bi_extended = syncprov_op_extended;
3179 syncprov.on_bi.bi_operational = syncprov_operational;
3181 syncprov.on_bi.bi_cf_ocs = spocs;
3183 generic_filter.f_desc = slap_schema.si_ad_objectClass;
3185 rc = config_register_schema( spcfg, spocs );
3186 if ( rc ) return rc;
3188 return overlay_register( &syncprov );
3191 #if SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC
3193 init_module( int argc, char *argv[] )
3195 return syncprov_initialize();
3197 #endif /* SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC */
3199 #endif /* defined(SLAPD_OVER_SYNCPROV) */