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_LUTIL_CSNSTR_BUFSIZE + STRLENOF("(entryCSN<=)")];
588 char cbuf[LDAP_LUTIL_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_LUTIL_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_LUTIL_CSNSTR_BUFSIZE];
1664 int do_check = 0, have_psearches, foundit, csn_changed = 0;
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 slap_get_commit_csn( op, &maxcsn, &foundit );
1675 if ( BER_BVISEMPTY( &maxcsn ) && SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1676 /* syncrepl queues the CSN values in the db where
1677 * it is configured , not where the changes are made.
1678 * So look for a value in the glue db if we didn't
1679 * find any in this db.
1681 BackendDB *be = op->o_bd;
1682 op->o_bd = select_backend( &be->be_nsuffix[0], 1);
1683 maxcsn.bv_val = cbuf;
1684 maxcsn.bv_len = sizeof(cbuf);
1685 slap_get_commit_csn( op, &maxcsn, &foundit );
1688 if ( !BER_BVISEMPTY( &maxcsn ) ) {
1691 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1692 assert( !syn->ssyn_validate( syn, &maxcsn ));
1694 sid = slap_parse_csn_sid( &maxcsn );
1695 for ( i=0; i<si->si_numcsns; i++ ) {
1696 if ( sid == si->si_sids[i] ) {
1697 if ( ber_bvcmp( &maxcsn, &si->si_ctxcsn[i] ) > 0 ) {
1698 ber_bvreplace( &si->si_ctxcsn[i], &maxcsn );
1704 /* It's a new SID for us */
1705 if ( i == si->si_numcsns ) {
1706 value_add_one( &si->si_ctxcsn, &maxcsn );
1709 si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
1711 si->si_sids[i] = sid;
1715 /* Don't do any processing for consumer contextCSN updates */
1716 if ( op->o_dont_replicate ) {
1717 if ( op->o_tag == LDAP_REQ_MODIFY &&
1718 op->orm_modlist->sml_op == LDAP_MOD_REPLACE &&
1719 op->orm_modlist->sml_desc == slap_schema.si_ad_contextCSN ) {
1720 /* Catch contextCSN updates from syncrepl. We have to look at
1721 * all the attribute values, as there may be more than one csn
1722 * that changed, and only one can be passed in the csn queue.
1724 Modifications *mod = op->orm_modlist;
1727 for ( i=0; i<mod->sml_numvals; i++ ) {
1728 sid = slap_parse_csn_sid( &mod->sml_values[i] );
1729 for ( j=0; j<si->si_numcsns; j++ ) {
1730 if ( sid == si->si_sids[j] ) {
1731 if ( ber_bvcmp( &mod->sml_values[i], &si->si_ctxcsn[j] ) > 0 ) {
1732 ber_bvreplace( &si->si_ctxcsn[j], &mod->sml_values[i] );
1739 if ( j == si->si_numcsns ) {
1740 value_add_one( &si->si_ctxcsn, &mod->sml_values[i] );
1742 si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
1744 si->si_sids[j] = sid;
1748 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1750 if ( csn_changed ) {
1751 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1752 have_psearches = ( si->si_ops != NULL );
1753 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1755 if ( have_psearches ) {
1756 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1757 if ( sm->sm_op->s_op->o_abandon )
1759 syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_NEW_COOKIE );
1764 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1770 if ( si->si_chkops || si->si_chktime ) {
1771 /* Never checkpoint adding the context entry,
1774 if ( op->o_tag != LDAP_REQ_ADD ||
1775 !dn_match( &op->o_req_ndn, &si->si_contextdn )) {
1776 if ( si->si_chkops && si->si_numops >= si->si_chkops ) {
1780 if ( si->si_chktime &&
1781 (op->o_time - si->si_chklast >= si->si_chktime )) {
1782 if ( si->si_chklast ) {
1784 si->si_chklast = op->o_time;
1791 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1794 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1795 syncprov_checkpoint( op, rs, on );
1796 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1799 /* only update consumer ctx if this is a newer csn */
1800 if ( csn_changed ) {
1801 opc->sctxcsn = maxcsn;
1804 /* Handle any persistent searches */
1805 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1806 have_psearches = ( si->si_ops != NULL );
1807 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1808 if ( have_psearches ) {
1811 case LDAP_REQ_MODIFY:
1812 case LDAP_REQ_MODRDN:
1813 case LDAP_REQ_EXTENDED:
1814 syncprov_matchops( op, opc, 0 );
1816 case LDAP_REQ_DELETE:
1817 /* for each match in opc->smatches:
1820 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1821 if ( sm->sm_op->s_op->o_abandon )
1823 syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_DELETE );
1829 /* Add any log records */
1830 if ( si->si_logs && op->o_tag != LDAP_REQ_ADD ) {
1831 syncprov_add_slog( op );
1833 leave: ldap_pvt_thread_mutex_unlock( &si->si_resp_mutex );
1835 return SLAP_CB_CONTINUE;
1838 /* We don't use a subentry to store the context CSN any more.
1839 * We expose the current context CSN as an operational attribute
1840 * of the suffix entry.
1843 syncprov_op_compare( Operation *op, SlapReply *rs )
1845 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1846 syncprov_info_t *si = on->on_bi.bi_private;
1847 int rc = SLAP_CB_CONTINUE;
1849 if ( dn_match( &op->o_req_ndn, &si->si_contextdn ) &&
1850 op->oq_compare.rs_ava->aa_desc == slap_schema.si_ad_contextCSN )
1855 e.e_name = si->si_contextdn;
1856 e.e_nname = si->si_contextdn;
1859 a.a_desc = slap_schema.si_ad_contextCSN;
1861 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1863 a.a_vals = si->si_ctxcsn;
1864 a.a_nvals = a.a_vals;
1865 a.a_numvals = si->si_numcsns;
1867 rs->sr_err = access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc,
1868 &op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL );
1869 if ( ! rs->sr_err ) {
1870 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1871 goto return_results;
1874 if ( get_assert( op ) &&
1875 ( test_filter( op, &e, get_assertion( op ) ) != LDAP_COMPARE_TRUE ) )
1877 rs->sr_err = LDAP_ASSERTION_FAILED;
1878 goto return_results;
1882 rs->sr_err = LDAP_COMPARE_FALSE;
1884 if ( attr_valfind( &a,
1885 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
1886 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
1887 &op->oq_compare.rs_ava->aa_value, NULL, op->o_tmpmemctx ) == 0 )
1889 rs->sr_err = LDAP_COMPARE_TRUE;
1894 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1896 send_ldap_result( op, rs );
1898 if( rs->sr_err == LDAP_COMPARE_FALSE || rs->sr_err == LDAP_COMPARE_TRUE ) {
1899 rs->sr_err = LDAP_SUCCESS;
1908 syncprov_op_mod( Operation *op, SlapReply *rs )
1910 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1911 syncprov_info_t *si = on->on_bi.bi_private;
1914 int have_psearches, cbsize;
1916 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1917 have_psearches = ( si->si_ops != NULL );
1918 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1920 cbsize = sizeof(slap_callback) + sizeof(opcookie) +
1921 (have_psearches ? sizeof(modinst) : 0 );
1923 cb = op->o_tmpcalloc(1, cbsize, op->o_tmpmemctx);
1924 opc = (opcookie *)(cb+1);
1926 cb->sc_response = syncprov_op_response;
1927 cb->sc_cleanup = syncprov_op_cleanup;
1928 cb->sc_private = opc;
1929 cb->sc_next = op->o_callback;
1930 op->o_callback = cb;
1934 if ( op->o_csn.bv_val ) {
1935 opc->osid = slap_parse_csn_sid( &op->o_csn );
1937 if ( op->o_controls ) {
1938 struct sync_cookie *scook =
1939 op->o_controls[slap_cids.sc_LDAPsync];
1941 opc->rsid = scook->sid;
1944 /* If there are active persistent searches, lock this operation.
1945 * See seqmod.c for the locking logic on its own.
1947 if ( have_psearches ) {
1948 modtarget *mt, mtdummy;
1951 mi = (modinst *)(opc+1);
1954 /* See if we're already modifying this entry... */
1956 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1957 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
1959 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1960 if ( mt->mt_mods == NULL ) {
1961 /* Cannot reuse this mt, as another thread is about
1962 * to release it in syncprov_op_cleanup.
1964 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1969 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1970 mt->mt_tail->mi_next = mi;
1972 /* wait for this op to get to head of list */
1973 while ( mt->mt_mods != mi ) {
1974 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1975 /* FIXME: if dynamic config can delete overlays or
1976 * databases we'll have to check for cleanup here.
1977 * Currently it's not an issue because there are
1978 * no dynamic config deletes...
1980 if ( slapd_shutdown )
1981 return SLAPD_ABANDON;
1983 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
1984 ldap_pvt_thread_yield();
1985 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1987 /* clean up if the caller is giving up */
1988 if ( op->o_abandon ) {
1990 for ( m2 = mt->mt_mods; m2->mi_next != mi;
1992 m2->mi_next = mi->mi_next;
1993 if ( mt->mt_tail == mi ) mt->mt_tail = m2;
1994 op->o_tmpfree( cb, op->o_tmpmemctx );
1995 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1996 return SLAPD_ABANDON;
1999 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2001 /* Record that we're modifying this entry now */
2002 mt = ch_malloc( sizeof(modtarget) );
2005 mt->mt_op = mi->mi_op;
2006 ldap_pvt_thread_mutex_init( &mt->mt_mutex );
2007 avl_insert( &si->si_mods, mt, sp_avl_cmp, avl_dup_error );
2008 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
2013 if (( have_psearches || si->si_logs ) && op->o_tag != LDAP_REQ_ADD )
2014 syncprov_matchops( op, opc, 1 );
2016 return SLAP_CB_CONTINUE;
2020 syncprov_op_extended( Operation *op, SlapReply *rs )
2022 if ( exop_is_write( op ))
2023 return syncprov_op_mod( op, rs );
2025 return SLAP_CB_CONTINUE;
2028 typedef struct searchstate {
2029 slap_overinst *ss_on;
2031 BerVarray ss_ctxcsn;
2034 #define SS_PRESENT 0x01
2035 #define SS_CHANGED 0x02
2040 syncprov_search_cleanup( Operation *op, SlapReply *rs )
2042 if ( rs->sr_ctrls ) {
2043 op->o_tmpfree( rs->sr_ctrls[0], op->o_tmpmemctx );
2044 op->o_tmpfree( rs->sr_ctrls, op->o_tmpmemctx );
2045 rs->sr_ctrls = NULL;
2050 typedef struct SyncOperationBuffer {
2054 AttributeName sob_extra; /* not always present */
2055 /* Further data allocated here */
2056 } SyncOperationBuffer;
2059 syncprov_detach_op( Operation *op, syncops *so, slap_overinst *on )
2061 SyncOperationBuffer *sopbuf2;
2066 GroupAssertion *g1, *g2;
2068 /* count the search attrs */
2069 for (i=0; op->ors_attrs && !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2070 alen += op->ors_attrs[i].an_name.bv_len + 1;
2072 /* Make a new copy of the operation */
2073 size = offsetof( SyncOperationBuffer, sob_extra ) +
2074 (i ? ( (i+1) * sizeof(AttributeName) + alen) : 0) +
2075 op->o_req_dn.bv_len + 1 +
2076 op->o_req_ndn.bv_len + 1 +
2077 op->o_ndn.bv_len + 1 +
2078 so->s_filterstr.bv_len + 1;
2079 sopbuf2 = ch_calloc( 1, size );
2080 op2 = &sopbuf2->sob_op;
2081 op2->o_hdr = &sopbuf2->sob_hdr;
2082 LDAP_SLIST_FIRST(&op2->o_extra) = &sopbuf2->sob_oe;
2084 /* Copy the fields we care about explicitly, leave the rest alone */
2085 *op2->o_hdr = *op->o_hdr;
2086 op2->o_tag = op->o_tag;
2087 op2->o_time = op->o_time;
2088 op2->o_bd = on->on_info->oi_origdb;
2089 op2->o_request = op->o_request;
2090 op2->o_managedsait = op->o_managedsait;
2091 LDAP_SLIST_FIRST(&op2->o_extra)->oe_key = on;
2092 LDAP_SLIST_NEXT(LDAP_SLIST_FIRST(&op2->o_extra), oe_next) = NULL;
2094 ptr = (char *) sopbuf2 + offsetof( SyncOperationBuffer, sob_extra );
2096 op2->ors_attrs = (AttributeName *) ptr;
2097 ptr = (char *) &op2->ors_attrs[i+1];
2098 for (i=0; !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2099 op2->ors_attrs[i] = op->ors_attrs[i];
2100 op2->ors_attrs[i].an_name.bv_val = ptr;
2101 ptr = lutil_strcopy( ptr, op->ors_attrs[i].an_name.bv_val ) + 1;
2103 BER_BVZERO( &op2->ors_attrs[i].an_name );
2106 op2->o_authz = op->o_authz;
2107 op2->o_ndn.bv_val = ptr;
2108 ptr = lutil_strcopy(ptr, op->o_ndn.bv_val) + 1;
2109 op2->o_dn = op2->o_ndn;
2110 op2->o_req_dn.bv_len = op->o_req_dn.bv_len;
2111 op2->o_req_dn.bv_val = ptr;
2112 ptr = lutil_strcopy(ptr, op->o_req_dn.bv_val) + 1;
2113 op2->o_req_ndn.bv_len = op->o_req_ndn.bv_len;
2114 op2->o_req_ndn.bv_val = ptr;
2115 ptr = lutil_strcopy(ptr, op->o_req_ndn.bv_val) + 1;
2116 op2->ors_filterstr.bv_val = ptr;
2117 strcpy( ptr, so->s_filterstr.bv_val );
2118 op2->ors_filterstr.bv_len = so->s_filterstr.bv_len;
2120 /* Skip the AND/GE clause that we stuck on in front */
2121 if ( so->s_flags & PS_FIX_FILTER ) {
2122 op2->ors_filter = op->ors_filter->f_and->f_next;
2123 so->s_flags ^= PS_FIX_FILTER;
2125 op2->ors_filter = op->ors_filter;
2127 op2->ors_filter = filter_dup( op2->ors_filter, NULL );
2130 /* Copy any cached group ACLs individually */
2131 op2->o_groups = NULL;
2132 for ( g1=op->o_groups; g1; g1=g1->ga_next ) {
2133 g2 = ch_malloc( sizeof(GroupAssertion) + g1->ga_len );
2135 strcpy( g2->ga_ndn, g1->ga_ndn );
2136 g2->ga_next = op2->o_groups;
2139 /* Don't allow any further group caching */
2140 op2->o_do_not_cache = 1;
2142 /* Add op2 to conn so abandon will find us */
2143 op->o_conn->c_n_ops_executing++;
2144 op->o_conn->c_n_ops_completed--;
2145 LDAP_STAILQ_INSERT_TAIL( &op->o_conn->c_ops, op2, o_next );
2146 so->s_flags |= PS_IS_DETACHED;
2148 /* Prevent anyone else from trying to send a result for this op */
2153 syncprov_search_response( Operation *op, SlapReply *rs )
2155 searchstate *ss = op->o_callback->sc_private;
2156 slap_overinst *on = ss->ss_on;
2157 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2158 sync_control *srs = op->o_controls[slap_cids.sc_LDAPsync];
2160 if ( rs->sr_type == REP_SEARCH || rs->sr_type == REP_SEARCHREF ) {
2162 /* If we got a referral without a referral object, there's
2163 * something missing that we cannot replicate. Just ignore it.
2164 * The consumer will abort because we didn't send the expected
2167 if ( !rs->sr_entry ) {
2168 assert( rs->sr_entry != NULL );
2169 Debug( LDAP_DEBUG_ANY, "bogus referral in context\n",0,0,0 );
2170 return SLAP_CB_CONTINUE;
2172 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryCSN );
2173 if ( a == NULL && rs->sr_operational_attrs != NULL ) {
2174 a = attr_find( rs->sr_operational_attrs, slap_schema.si_ad_entryCSN );
2178 sid = slap_parse_csn_sid( &a->a_nvals[0] );
2180 /* Don't send changed entries back to the originator */
2181 if ( sid == srs->sr_state.sid && srs->sr_state.numcsns ) {
2182 Debug( LDAP_DEBUG_SYNC,
2183 "Entry %s changed by peer, ignored\n",
2184 rs->sr_entry->e_name.bv_val, 0, 0 );
2185 return LDAP_SUCCESS;
2188 /* If not a persistent search */
2190 /* Make sure entry is less than the snapshot'd contextCSN */
2191 for ( i=0; i<ss->ss_numcsns; i++ ) {
2192 if ( sid == ss->ss_sids[i] && ber_bvcmp( &a->a_nvals[0],
2193 &ss->ss_ctxcsn[i] ) > 0 ) {
2194 Debug( LDAP_DEBUG_SYNC,
2195 "Entry %s CSN %s greater than snapshot %s\n",
2196 rs->sr_entry->e_name.bv_val,
2197 a->a_nvals[0].bv_val,
2198 ss->ss_ctxcsn[i].bv_val );
2199 return LDAP_SUCCESS;
2204 /* Don't send old entries twice */
2205 if ( srs->sr_state.ctxcsn ) {
2206 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2207 if ( sid == srs->sr_state.sids[i] &&
2208 ber_bvcmp( &a->a_nvals[0],
2209 &srs->sr_state.ctxcsn[i] )<= 0 ) {
2210 Debug( LDAP_DEBUG_SYNC,
2211 "Entry %s CSN %s older or equal to ctx %s\n",
2212 rs->sr_entry->e_name.bv_val,
2213 a->a_nvals[0].bv_val,
2214 srs->sr_state.ctxcsn[i].bv_val );
2215 return LDAP_SUCCESS;
2220 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2222 rs->sr_ctrls[1] = NULL;
2223 /* If we're in delta-sync mode, always send a cookie */
2224 if ( si->si_nopres && si->si_usehint && a ) {
2225 struct berval cookie;
2226 slap_compose_sync_cookie( op, &cookie, a->a_nvals, srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
2227 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2228 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 1, &cookie );
2230 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2231 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 0, NULL );
2233 } else if ( rs->sr_type == REP_RESULT && rs->sr_err == LDAP_SUCCESS ) {
2234 struct berval cookie = BER_BVNULL;
2236 if ( ( ss->ss_flags & SS_CHANGED ) &&
2237 ss->ss_ctxcsn && !BER_BVISNULL( &ss->ss_ctxcsn[0] )) {
2238 slap_compose_sync_cookie( op, &cookie, ss->ss_ctxcsn,
2239 srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
2241 Debug( LDAP_DEBUG_SYNC, "syncprov_search_response: cookie=%s\n", cookie.bv_val, 0, 0 );
2244 /* Is this a regular refresh?
2245 * Note: refresh never gets here if there were no changes
2248 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2250 rs->sr_ctrls[1] = NULL;
2251 rs->sr_err = syncprov_done_ctrl( op, rs, rs->sr_ctrls,
2252 0, 1, &cookie, ( ss->ss_flags & SS_PRESENT ) ? LDAP_SYNC_REFRESH_PRESENTS :
2253 LDAP_SYNC_REFRESH_DELETES );
2254 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2256 /* It's RefreshAndPersist, transition to Persist phase */
2257 syncprov_sendinfo( op, rs, ( ss->ss_flags & SS_PRESENT ) ?
2258 LDAP_TAG_SYNC_REFRESH_PRESENT : LDAP_TAG_SYNC_REFRESH_DELETE,
2259 ( ss->ss_flags & SS_CHANGED ) ? &cookie : NULL,
2261 if ( !BER_BVISNULL( &cookie ))
2262 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2264 /* Detach this Op from frontend control */
2265 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
2267 /* But not if this connection was closed along the way */
2268 if ( op->o_abandon ) {
2269 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2270 /* syncprov_ab_cleanup will free this syncop */
2271 return SLAPD_ABANDON;
2274 ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex );
2275 /* Turn off the refreshing flag */
2276 ss->ss_so->s_flags ^= PS_IS_REFRESHING;
2278 syncprov_detach_op( op, ss->ss_so, on );
2280 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2282 /* If there are queued responses, fire them off */
2283 if ( ss->ss_so->s_res )
2284 syncprov_qstart( ss->ss_so );
2285 ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
2288 return LDAP_SUCCESS;
2292 return SLAP_CB_CONTINUE;
2296 syncprov_op_search( Operation *op, SlapReply *rs )
2298 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2299 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2301 int gotstate = 0, changed = 0, do_present = 0;
2302 syncops *sop = NULL;
2306 int i, *sids, numcsns;
2307 struct berval mincsn;
2309 if ( !(op->o_sync_mode & SLAP_SYNC_REFRESH) ) return SLAP_CB_CONTINUE;
2311 if ( op->ors_deref & LDAP_DEREF_SEARCHING ) {
2312 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR, "illegal value for derefAliases" );
2316 srs = op->o_controls[slap_cids.sc_LDAPsync];
2318 /* If this is a persistent search, set it up right away */
2319 if ( op->o_sync_mode & SLAP_SYNC_PERSIST ) {
2329 so.s_flags = PS_IS_REFRESHING | PS_FIND_BASE;
2330 /* syncprov_findbase expects to be called as a callback... */
2331 sc.sc_private = &opc;
2333 ldap_pvt_thread_mutex_init( &so.s_mutex );
2334 cb = op->o_callback;
2335 op->o_callback = ≻
2336 rs->sr_err = syncprov_findbase( op, &fc );
2337 op->o_callback = cb;
2338 ldap_pvt_thread_mutex_destroy( &so.s_mutex );
2340 if ( rs->sr_err != LDAP_SUCCESS ) {
2341 send_ldap_result( op, rs );
2344 sop = ch_malloc( sizeof( syncops ));
2346 ldap_pvt_thread_mutex_init( &sop->s_mutex );
2347 sop->s_rid = srs->sr_state.rid;
2348 sop->s_sid = srs->sr_state.sid;
2351 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2352 sop->s_next = si->si_ops;
2354 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2357 /* snapshot the ctxcsn */
2358 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2359 numcsns = si->si_numcsns;
2361 ber_bvarray_dup_x( &ctxcsn, si->si_ctxcsn, op->o_tmpmemctx );
2362 sids = op->o_tmpalloc( numcsns * sizeof(int), op->o_tmpmemctx );
2363 for ( i=0; i<numcsns; i++ )
2364 sids[i] = si->si_sids[i];
2369 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2371 /* If we have a cookie, handle the PRESENT lookups */
2372 if ( srs->sr_state.ctxcsn ) {
2376 /* If we don't have any CSN of our own yet, pretend nothing
2382 if ( !si->si_nopres )
2383 do_present = SS_PRESENT;
2385 /* If there are SIDs we don't recognize in the cookie, drop them */
2386 for (i=0; i<srs->sr_state.numcsns; ) {
2387 for (j=0; j<numcsns; j++) {
2388 if ( srs->sr_state.sids[i] == sids[j] ) {
2393 if ( j == numcsns ) {
2394 struct berval tmp = srs->sr_state.ctxcsn[i];
2395 j = srs->sr_state.numcsns - 1;
2396 srs->sr_state.ctxcsn[i] = srs->sr_state.ctxcsn[j];
2398 srs->sr_state.ctxcsn[j] = tmp;
2399 srs->sr_state.numcsns = j;
2400 srs->sr_state.sids[i] = srs->sr_state.sids[j];
2406 /* Find the smallest CSN */
2407 mincsn = srs->sr_state.ctxcsn[0];
2408 for ( i=1; i<srs->sr_state.numcsns; i++ ) {
2409 if ( ber_bvcmp( &mincsn, &srs->sr_state.ctxcsn[i] ) > 0 )
2410 mincsn = srs->sr_state.ctxcsn[i];
2413 /* If nothing has changed, shortcut it */
2414 if ( srs->sr_state.numcsns == numcsns ) {
2416 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2417 for ( j=0; j<numcsns; j++ ) {
2418 if ( srs->sr_state.sids[i] != sids[j] )
2420 newer = ber_bvcmp( &srs->sr_state.ctxcsn[i], &ctxcsn[j] );
2421 /* If our state is newer, tell consumer about changes */
2423 changed = SS_CHANGED;
2424 else if ( newer > 0 ) {
2425 /* our state is older, tell consumer nothing */
2427 syncops **sp = &si->si_ops;
2429 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2430 while ( *sp != sop )
2431 sp = &(*sp)->s_next;
2433 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2436 rs->sr_err = LDAP_SUCCESS;
2437 rs->sr_ctrls = NULL;
2438 send_ldap_result( op, rs );
2448 no_change: if ( !(op->o_sync_mode & SLAP_SYNC_PERSIST) ) {
2449 LDAPControl *ctrls[2];
2453 syncprov_done_ctrl( op, rs, ctrls, 0, 0,
2454 NULL, LDAP_SYNC_REFRESH_DELETES );
2455 rs->sr_ctrls = ctrls;
2456 rs->sr_err = LDAP_SUCCESS;
2457 send_ldap_result( op, rs );
2458 rs->sr_ctrls = NULL;
2464 /* consumer doesn't have the right number of CSNs */
2465 changed = SS_CHANGED;
2467 /* Do we have a sessionlog for this search? */
2470 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
2471 /* Are there any log entries, and is the consumer state
2472 * present in the session log?
2474 if ( sl->sl_num > 0 && ber_bvcmp( &mincsn, &sl->sl_mincsn ) >= 0 ) {
2476 /* mutex is unlocked in playlog */
2477 syncprov_playlog( op, rs, sl, srs, ctxcsn, numcsns, sids );
2479 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
2482 /* Is the CSN still present in the database? */
2483 if ( syncprov_findcsn( op, FIND_CSN ) != LDAP_SUCCESS ) {
2484 /* No, so a reload is required */
2485 /* the 2.2 consumer doesn't send this hint */
2486 if ( si->si_usehint && srs->sr_rhint == 0 ) {
2488 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2490 op->o_tmpfree( sids, op->o_tmpmemctx );
2491 send_ldap_error( op, rs, LDAP_SYNC_REFRESH_REQUIRED, "sync cookie is stale" );
2494 if ( srs->sr_state.ctxcsn ) {
2495 ber_bvarray_free_x( srs->sr_state.ctxcsn, op->o_tmpmemctx );
2496 srs->sr_state.ctxcsn = NULL;
2498 if ( srs->sr_state.sids ) {
2499 slap_sl_free( srs->sr_state.sids, op->o_tmpmemctx );
2500 srs->sr_state.sids = NULL;
2502 srs->sr_state.numcsns = 0;
2505 /* If changed and doing Present lookup, send Present UUIDs */
2506 if ( do_present && syncprov_findcsn( op, FIND_PRESENT ) !=
2509 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2511 op->o_tmpfree( sids, op->o_tmpmemctx );
2512 send_ldap_result( op, rs );
2517 /* No consumer state, assume something has changed */
2518 changed = SS_CHANGED;
2522 /* Append CSN range to search filter, save original filter
2523 * for persistent search evaluation
2526 sop->s_filterstr= op->ors_filterstr;
2529 /* If something changed, find the changes */
2530 if ( gotstate && changed ) {
2531 Filter *fand, *fava;
2533 fand = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2534 fand->f_choice = LDAP_FILTER_AND;
2535 fand->f_next = NULL;
2536 fava = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2538 fava->f_choice = LDAP_FILTER_GE;
2539 fava->f_ava = op->o_tmpalloc( sizeof(AttributeAssertion), op->o_tmpmemctx );
2540 fava->f_ava->aa_desc = slap_schema.si_ad_entryCSN;
2541 #ifdef LDAP_COMP_MATCH
2542 fava->f_ava->aa_cf = NULL;
2544 ber_dupbv_x( &fava->f_ava->aa_value, &mincsn, op->o_tmpmemctx );
2545 fava->f_next = op->ors_filter;
2546 op->ors_filter = fand;
2547 filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2549 sop->s_flags |= PS_FIX_FILTER;
2552 /* Let our callback add needed info to returned entries */
2553 cb = op->o_tmpcalloc(1, sizeof(slap_callback)+sizeof(searchstate), op->o_tmpmemctx);
2554 ss = (searchstate *)(cb+1);
2557 ss->ss_flags = do_present | changed;
2558 ss->ss_ctxcsn = ctxcsn;
2559 ss->ss_numcsns = numcsns;
2561 cb->sc_response = syncprov_search_response;
2562 cb->sc_cleanup = syncprov_search_cleanup;
2563 cb->sc_private = ss;
2564 cb->sc_next = op->o_callback;
2565 op->o_callback = cb;
2567 /* If this is a persistent search and no changes were reported during
2568 * the refresh phase, just invoke the response callback to transition
2569 * us into persist phase
2572 rs->sr_err = LDAP_SUCCESS;
2573 rs->sr_nentries = 0;
2574 send_ldap_result( op, rs );
2577 return SLAP_CB_CONTINUE;
2581 syncprov_operational(
2585 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2586 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2588 /* This prevents generating unnecessarily; frontend will strip
2589 * any statically stored copy.
2591 if ( op->o_sync != SLAP_CONTROL_NONE )
2592 return SLAP_CB_CONTINUE;
2594 if ( rs->sr_entry &&
2595 dn_match( &rs->sr_entry->e_nname, &si->si_contextdn )) {
2597 if ( SLAP_OPATTRS( rs->sr_attr_flags ) ||
2598 ad_inlist( slap_schema.si_ad_contextCSN, rs->sr_attrs )) {
2599 Attribute *a, **ap = NULL;
2601 for ( a=rs->sr_entry->e_attrs; a; a=a->a_next ) {
2602 if ( a->a_desc == slap_schema.si_ad_contextCSN )
2606 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2607 if ( si->si_ctxcsn ) {
2609 for ( ap = &rs->sr_operational_attrs; *ap;
2610 ap=&(*ap)->a_next );
2612 a = attr_alloc( slap_schema.si_ad_contextCSN );
2617 if ( !(rs->sr_flags & REP_ENTRY_MODIFIABLE) ) {
2618 Entry *e = entry_dup( rs->sr_entry );
2619 if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
2620 overlay_entry_release_ov( op, rs->sr_entry, 0, on );
2621 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
2622 } else if ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) {
2623 entry_free( rs->sr_entry );
2627 REP_ENTRY_MODIFIABLE|REP_ENTRY_MUSTBEFREED;
2628 a = attr_find( rs->sr_entry->e_attrs,
2629 slap_schema.si_ad_contextCSN );
2631 if ( a->a_nvals != a->a_vals ) {
2632 ber_bvarray_free( a->a_nvals );
2635 ber_bvarray_free( a->a_vals );
2639 attr_valadd( a, si->si_ctxcsn, si->si_ctxcsn, si->si_numcsns );
2641 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2644 return SLAP_CB_CONTINUE;
2654 static ConfigDriver sp_cf_gen;
2656 static ConfigTable spcfg[] = {
2657 { "syncprov-checkpoint", "ops> <minutes", 3, 3, 0, ARG_MAGIC|SP_CHKPT,
2658 sp_cf_gen, "( OLcfgOvAt:1.1 NAME 'olcSpCheckpoint' "
2659 "DESC 'ContextCSN checkpoint interval in ops and minutes' "
2660 "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
2661 { "syncprov-sessionlog", "ops", 2, 2, 0, ARG_INT|ARG_MAGIC|SP_SESSL,
2662 sp_cf_gen, "( OLcfgOvAt:1.2 NAME 'olcSpSessionlog' "
2663 "DESC 'Session log size in ops' "
2664 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
2665 { "syncprov-nopresent", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_NOPRES,
2666 sp_cf_gen, "( OLcfgOvAt:1.3 NAME 'olcSpNoPresent' "
2667 "DESC 'Omit Present phase processing' "
2668 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2669 { "syncprov-reloadhint", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_USEHINT,
2670 sp_cf_gen, "( OLcfgOvAt:1.4 NAME 'olcSpReloadHint' "
2671 "DESC 'Observe Reload Hint in Request control' "
2672 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2673 { NULL, NULL, 0, 0, 0, ARG_IGNORED }
2676 static ConfigOCs spocs[] = {
2677 { "( OLcfgOvOc:1.1 "
2678 "NAME 'olcSyncProvConfig' "
2679 "DESC 'SyncRepl Provider configuration' "
2680 "SUP olcOverlayConfig "
2681 "MAY ( olcSpCheckpoint "
2682 "$ olcSpSessionlog "
2684 "$ olcSpReloadHint "
2686 Cft_Overlay, spcfg },
2691 sp_cf_gen(ConfigArgs *c)
2693 slap_overinst *on = (slap_overinst *)c->bi;
2694 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2697 if ( c->op == SLAP_CONFIG_EMIT ) {
2698 switch ( c->type ) {
2700 if ( si->si_chkops || si->si_chktime ) {
2702 /* we assume si_chktime is a multiple of 60
2703 * because the parsed value was originally
2704 * multiplied by 60 */
2705 bv.bv_len = snprintf( c->cr_msg, sizeof( c->cr_msg ),
2706 "%d %d", si->si_chkops, si->si_chktime/60 );
2707 if ( bv.bv_len >= sizeof( c->cr_msg ) ) {
2710 bv.bv_val = c->cr_msg;
2711 value_add_one( &c->rvalue_vals, &bv );
2718 if ( si->si_logs ) {
2719 c->value_int = si->si_logs->sl_size;
2725 if ( si->si_nopres ) {
2732 if ( si->si_usehint ) {
2740 } else if ( c->op == LDAP_MOD_DELETE ) {
2741 switch ( c->type ) {
2748 si->si_logs->sl_size = 0;
2750 rc = LDAP_NO_SUCH_ATTRIBUTE;
2753 if ( si->si_nopres )
2756 rc = LDAP_NO_SUCH_ATTRIBUTE;
2759 if ( si->si_usehint )
2762 rc = LDAP_NO_SUCH_ATTRIBUTE;
2767 switch ( c->type ) {
2769 if ( lutil_atoi( &si->si_chkops, c->argv[1] ) != 0 ) {
2770 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint ops # \"%s\"",
2771 c->argv[0], c->argv[1] );
2772 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2773 "%s: %s\n", c->log, c->cr_msg, 0 );
2774 return ARG_BAD_CONF;
2776 if ( si->si_chkops <= 0 ) {
2777 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint ops # \"%d\"",
2778 c->argv[0], si->si_chkops );
2779 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2780 "%s: %s\n", c->log, c->cr_msg, 0 );
2781 return ARG_BAD_CONF;
2783 if ( lutil_atoi( &si->si_chktime, c->argv[2] ) != 0 ) {
2784 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint time \"%s\"",
2785 c->argv[0], c->argv[1] );
2786 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2787 "%s: %s\n", c->log, c->cr_msg, 0 );
2788 return ARG_BAD_CONF;
2790 if ( si->si_chktime <= 0 ) {
2791 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint time \"%d\"",
2792 c->argv[0], si->si_chkops );
2793 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2794 "%s: %s\n", c->log, c->cr_msg, 0 );
2795 return ARG_BAD_CONF;
2797 si->si_chktime *= 60;
2801 int size = c->value_int;
2804 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s size %d is negative",
2806 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2807 "%s: %s\n", c->log, c->cr_msg, 0 );
2808 return ARG_BAD_CONF;
2812 sl = ch_malloc( sizeof( sessionlog ) + LDAP_LUTIL_CSNSTR_BUFSIZE );
2813 sl->sl_mincsn.bv_val = (char *)(sl+1);
2814 sl->sl_mincsn.bv_len = 0;
2816 sl->sl_head = sl->sl_tail = NULL;
2817 ldap_pvt_thread_mutex_init( &sl->sl_mutex );
2824 si->si_nopres = c->value_int;
2827 si->si_usehint = c->value_int;
2833 /* ITS#3456 we cannot run this search on the main thread, must use a
2834 * child thread in order to insure we have a big enough stack.
2841 syncprov_findcsn( ptr, FIND_MAXCSN );
2845 /* Read any existing contextCSN from the underlying db.
2846 * Then search for any entries newer than that. If no value exists,
2847 * just generate it. Cache whatever result.
2855 slap_overinst *on = (slap_overinst *) be->bd_info;
2856 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2858 Connection conn = { 0 };
2859 OperationBuffer opbuf;
2864 void *thrctx = NULL;
2866 if ( !SLAP_LASTMOD( be )) {
2867 Debug( LDAP_DEBUG_ANY,
2868 "syncprov_db_open: invalid config, lastmod must be enabled\n", 0, 0, 0 );
2872 if ( slapMode & SLAP_TOOL_MODE ) {
2876 rc = overlay_register_control( be, LDAP_CONTROL_SYNC );
2881 thrctx = ldap_pvt_thread_pool_context();
2882 connection_fake_init2( &conn, &opbuf, thrctx, 0 );
2885 op->o_dn = be->be_rootdn;
2886 op->o_ndn = be->be_rootndn;
2888 if ( SLAP_SYNC_SUBENTRY( be )) {
2889 build_new_dn( &si->si_contextdn, be->be_nsuffix,
2890 (struct berval *)&slap_ldapsync_cn_bv, NULL );
2892 si->si_contextdn = be->be_nsuffix[0];
2894 rc = overlay_entry_get_ov( op, &si->si_contextdn, NULL,
2895 slap_schema.si_ad_contextCSN, 0, &e, on );
2898 ldap_pvt_thread_t tid;
2900 a = attr_find( e->e_attrs, slap_schema.si_ad_contextCSN );
2902 ber_bvarray_dup_x( &si->si_ctxcsn, a->a_vals, NULL );
2903 si->si_numcsns = a->a_numvals;
2904 si->si_sids = slap_parse_csn_sids( si->si_ctxcsn, a->a_numvals, NULL );
2906 overlay_entry_release_ov( op, e, 0, on );
2907 if ( si->si_ctxcsn && !SLAP_DBCLEAN( be )) {
2908 op->o_req_dn = be->be_suffix[0];
2909 op->o_req_ndn = be->be_nsuffix[0];
2910 op->ors_scope = LDAP_SCOPE_SUBTREE;
2911 ldap_pvt_thread_create( &tid, 0, syncprov_db_otask, op );
2912 ldap_pvt_thread_join( tid, NULL );
2916 /* Didn't find a contextCSN, should we generate one? */
2917 if ( !si->si_ctxcsn ) {
2918 char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
2921 if ( SLAP_SYNC_SHADOW( op->o_bd )) {
2922 /* If we're also a consumer, then don't generate anything.
2923 * Wait for our provider to send it to us, or for a local
2924 * modify if we have multimaster.
2928 csn.bv_val = csnbuf;
2929 csn.bv_len = sizeof( csnbuf );
2930 slap_get_csn( op, &csn, 0 );
2931 value_add_one( &si->si_ctxcsn, &csn );
2933 si->si_sids = ch_malloc( sizeof(int) );
2934 si->si_sids[0] = slap_serverID;
2936 /* make sure we do a checkpoint on close */
2941 op->o_bd->bd_info = (BackendInfo *)on;
2945 /* Write the current contextCSN into the underlying db.
2953 slap_overinst *on = (slap_overinst *) be->bd_info;
2954 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2956 if ( slapMode & SLAP_TOOL_MODE ) {
2959 if ( si->si_numops ) {
2960 Connection conn = {0};
2961 OperationBuffer opbuf;
2963 SlapReply rs = {REP_RESULT};
2966 thrctx = ldap_pvt_thread_pool_context();
2967 connection_fake_init2( &conn, &opbuf, thrctx, 0 );
2970 op->o_dn = be->be_rootdn;
2971 op->o_ndn = be->be_rootndn;
2972 syncprov_checkpoint( op, &rs, on );
2984 slap_overinst *on = (slap_overinst *)be->bd_info;
2985 syncprov_info_t *si;
2987 if ( SLAP_ISGLOBALOVERLAY( be ) ) {
2988 Debug( LDAP_DEBUG_ANY,
2989 "syncprov must be instantiated within a database.\n",
2994 si = ch_calloc(1, sizeof(syncprov_info_t));
2995 on->on_bi.bi_private = si;
2996 ldap_pvt_thread_rdwr_init( &si->si_csn_rwlock );
2997 ldap_pvt_thread_mutex_init( &si->si_ops_mutex );
2998 ldap_pvt_thread_mutex_init( &si->si_mods_mutex );
2999 ldap_pvt_thread_mutex_init( &si->si_resp_mutex );
3001 csn_anlist[0].an_desc = slap_schema.si_ad_entryCSN;
3002 csn_anlist[0].an_name = slap_schema.si_ad_entryCSN->ad_cname;
3003 csn_anlist[1].an_desc = slap_schema.si_ad_entryUUID;
3004 csn_anlist[1].an_name = slap_schema.si_ad_entryUUID->ad_cname;
3006 uuid_anlist[0].an_desc = slap_schema.si_ad_entryUUID;
3007 uuid_anlist[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
3013 syncprov_db_destroy(
3018 slap_overinst *on = (slap_overinst *)be->bd_info;
3019 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3022 if ( si->si_logs ) {
3023 slog_entry *se = si->si_logs->sl_head;
3026 slog_entry *se_next = se->se_next;
3031 ch_free( si->si_logs );
3033 if ( si->si_ctxcsn )
3034 ber_bvarray_free( si->si_ctxcsn );
3036 ch_free( si->si_sids );
3037 ldap_pvt_thread_mutex_destroy( &si->si_resp_mutex );
3038 ldap_pvt_thread_mutex_destroy( &si->si_mods_mutex );
3039 ldap_pvt_thread_mutex_destroy( &si->si_ops_mutex );
3040 ldap_pvt_thread_rdwr_destroy( &si->si_csn_rwlock );
3047 static int syncprov_parseCtrl (
3053 BerElementBuffer berbuf;
3054 BerElement *ber = (BerElement *)&berbuf;
3057 struct berval cookie = BER_BVNULL;
3061 if ( op->o_sync != SLAP_CONTROL_NONE ) {
3062 rs->sr_text = "Sync control specified multiple times";
3063 return LDAP_PROTOCOL_ERROR;
3066 if ( op->o_pagedresults != SLAP_CONTROL_NONE ) {
3067 rs->sr_text = "Sync control specified with pagedResults control";
3068 return LDAP_PROTOCOL_ERROR;
3071 if ( BER_BVISNULL( &ctrl->ldctl_value ) ) {
3072 rs->sr_text = "Sync control value is absent";
3073 return LDAP_PROTOCOL_ERROR;
3076 if ( BER_BVISEMPTY( &ctrl->ldctl_value ) ) {
3077 rs->sr_text = "Sync control value is empty";
3078 return LDAP_PROTOCOL_ERROR;
3081 /* Parse the control value
3082 * syncRequestValue ::= SEQUENCE {
3087 * refreshAndPersist (3)
3089 * cookie syncCookie OPTIONAL
3093 ber_init2( ber, &ctrl->ldctl_value, 0 );
3095 if ( (tag = ber_scanf( ber, "{i" /*}*/, &mode )) == LBER_ERROR ) {
3096 rs->sr_text = "Sync control : mode decoding error";
3097 return LDAP_PROTOCOL_ERROR;
3101 case LDAP_SYNC_REFRESH_ONLY:
3102 mode = SLAP_SYNC_REFRESH;
3104 case LDAP_SYNC_REFRESH_AND_PERSIST:
3105 mode = SLAP_SYNC_REFRESH_AND_PERSIST;
3108 rs->sr_text = "Sync control : unknown update mode";
3109 return LDAP_PROTOCOL_ERROR;
3112 tag = ber_peek_tag( ber, &len );
3114 if ( tag == LDAP_TAG_SYNC_COOKIE ) {
3115 if (( ber_scanf( ber, /*{*/ "m", &cookie )) == LBER_ERROR ) {
3116 rs->sr_text = "Sync control : cookie decoding error";
3117 return LDAP_PROTOCOL_ERROR;
3119 tag = ber_peek_tag( ber, &len );
3121 if ( tag == LDAP_TAG_RELOAD_HINT ) {
3122 if (( ber_scanf( ber, /*{*/ "b", &rhint )) == LBER_ERROR ) {
3123 rs->sr_text = "Sync control : rhint decoding error";
3124 return LDAP_PROTOCOL_ERROR;
3127 if (( ber_scanf( ber, /*{*/ "}")) == LBER_ERROR ) {
3128 rs->sr_text = "Sync control : decoding error";
3129 return LDAP_PROTOCOL_ERROR;
3131 sr = op->o_tmpcalloc( 1, sizeof(struct sync_control), op->o_tmpmemctx );
3132 sr->sr_rhint = rhint;
3133 if (!BER_BVISNULL(&cookie)) {
3134 ber_dupbv_x( &sr->sr_state.octet_str, &cookie, op->o_tmpmemctx );
3135 /* If parse fails, pretend no cookie was sent */
3136 if ( slap_parse_sync_cookie( &sr->sr_state, op->o_tmpmemctx ) ||
3137 sr->sr_state.rid == -1 ) {
3138 if ( sr->sr_state.ctxcsn ) {
3139 ber_bvarray_free_x( sr->sr_state.ctxcsn, op->o_tmpmemctx );
3140 sr->sr_state.ctxcsn = NULL;
3142 sr->sr_state.numcsns = 0;
3146 op->o_controls[slap_cids.sc_LDAPsync] = sr;
3148 op->o_sync = ctrl->ldctl_iscritical
3149 ? SLAP_CONTROL_CRITICAL
3150 : SLAP_CONTROL_NONCRITICAL;
3152 op->o_sync_mode |= mode; /* o_sync_mode shares o_sync */
3154 return LDAP_SUCCESS;
3157 /* This overlay is set up for dynamic loading via moduleload. For static
3158 * configuration, you'll need to arrange for the slap_overinst to be
3159 * initialized and registered by some other function inside slapd.
3162 static slap_overinst syncprov;
3165 syncprov_initialize()
3169 rc = register_supported_control( LDAP_CONTROL_SYNC,
3170 SLAP_CTRL_SEARCH, NULL,
3171 syncprov_parseCtrl, &slap_cids.sc_LDAPsync );
3172 if ( rc != LDAP_SUCCESS ) {
3173 Debug( LDAP_DEBUG_ANY,
3174 "syncprov_init: Failed to register control %d\n", rc, 0, 0 );
3178 syncprov.on_bi.bi_type = "syncprov";
3179 syncprov.on_bi.bi_db_init = syncprov_db_init;
3180 syncprov.on_bi.bi_db_destroy = syncprov_db_destroy;
3181 syncprov.on_bi.bi_db_open = syncprov_db_open;
3182 syncprov.on_bi.bi_db_close = syncprov_db_close;
3184 syncprov.on_bi.bi_op_abandon = syncprov_op_abandon;
3185 syncprov.on_bi.bi_op_cancel = syncprov_op_abandon;
3187 syncprov.on_bi.bi_op_add = syncprov_op_mod;
3188 syncprov.on_bi.bi_op_compare = syncprov_op_compare;
3189 syncprov.on_bi.bi_op_delete = syncprov_op_mod;
3190 syncprov.on_bi.bi_op_modify = syncprov_op_mod;
3191 syncprov.on_bi.bi_op_modrdn = syncprov_op_mod;
3192 syncprov.on_bi.bi_op_search = syncprov_op_search;
3193 syncprov.on_bi.bi_extended = syncprov_op_extended;
3194 syncprov.on_bi.bi_operational = syncprov_operational;
3196 syncprov.on_bi.bi_cf_ocs = spocs;
3198 generic_filter.f_desc = slap_schema.si_ad_objectClass;
3200 rc = config_register_schema( spcfg, spocs );
3201 if ( rc ) return rc;
3203 return overlay_register( &syncprov );
3206 #if SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC
3208 init_module( int argc, char *argv[] )
3210 return syncprov_initialize();
3212 #endif /* SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC */
3214 #endif /* defined(SLAPD_OVER_SYNCPROV) */