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 ( !BER_BVISNULL( &cookie )) {
796 if ( so->s_sid > 0 ) {
797 Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: to=%03x, cookie=%s\n",
798 so->s_sid, cookie.bv_val , 0 );
800 Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: cookie=%s\n",
801 cookie.bv_val, 0, 0 );
806 e_uuid.e_attrs = &a_uuid;
807 a_uuid.a_desc = slap_schema.si_ad_entryUUID;
808 a_uuid.a_nvals = &opc->suuid;
809 rs.sr_err = syncprov_state_ctrl( op, &rs, &e_uuid,
810 mode, ctrls, 0, 1, &cookie );
811 if ( !BER_BVISNULL( &cookie )) {
812 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
816 op->o_bd->bd_info = (BackendInfo *)on->on_info;
820 if ( rs.sr_entry->e_private )
821 rs.sr_flags = REP_ENTRY_MUSTRELEASE;
822 if ( opc->sreference && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
823 rs.sr_ref = get_entry_referrals( op, rs.sr_entry );
824 rs.sr_err = send_search_reference( op, &rs );
825 ber_bvarray_free( rs.sr_ref );
831 case LDAP_SYNC_MODIFY:
833 if ( rs.sr_entry->e_private )
834 rs.sr_flags = REP_ENTRY_MUSTRELEASE;
835 rs.sr_attrs = op->ors_attrs;
836 rs.sr_err = send_search_entry( op, &rs );
840 case LDAP_SYNC_DELETE:
841 e_uuid.e_attrs = NULL;
842 e_uuid.e_name = opc->sdn;
843 e_uuid.e_nname = opc->sndn;
844 rs.sr_entry = &e_uuid;
845 if ( opc->sreference && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
846 struct berval bv = BER_BVNULL;
848 rs.sr_err = send_search_reference( op, &rs );
850 rs.sr_err = send_search_entry( op, &rs );
856 /* In case someone else freed it already? */
858 op->o_tmpfree( rs.sr_ctrls[0], op->o_tmpmemctx );
866 syncprov_qstart( syncops *so );
868 /* Play back queued responses */
870 syncprov_qplay( Operation *op, syncops *so )
872 slap_overinst *on = LDAP_SLIST_FIRST(&so->s_op->o_extra)->oe_key;
881 ldap_pvt_thread_mutex_lock( &so->s_mutex );
884 so->s_res = sr->s_next;
886 so->s_restail = NULL;
887 /* Exit loop with mutex held */
888 if ( !sr || so->s_op->o_abandon )
890 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
892 if ( sr->s_mode == LDAP_SYNC_NEW_COOKIE ) {
893 SlapReply rs = { REP_INTERMEDIATE };
895 rc = syncprov_sendinfo( op, &rs, LDAP_TAG_SYNC_NEW_COOKIE,
896 &sr->s_csn, 0, NULL, 0 );
899 opc.sndn = sr->s_ndn;
900 opc.suuid = sr->s_uuid;
901 opc.sctxcsn = sr->s_csn;
902 opc.sreference = sr->s_isreference;
905 if ( sr->s_mode != LDAP_SYNC_DELETE ) {
906 rc = overlay_entry_get_ov( op, &opc.sndn, NULL, NULL, 0, &e, on );
908 Debug( LDAP_DEBUG_SYNC, "syncprov_qplay: failed to get %s, "
909 "error (%d), ignoring...\n", opc.sndn.bv_val, rc, 0 );
915 rc = syncprov_sendresp( op, &opc, so, &e, sr->s_mode );
918 overlay_entry_release_ov( op, e, 0, on );
924 /* Exit loop with mutex held */
925 ldap_pvt_thread_mutex_lock( &so->s_mutex );
929 /* We now only send one change at a time, to prevent one
930 * psearch from hogging all the CPU. Resubmit this task if
931 * there are more responses queued and no errors occurred.
934 if ( rc == 0 && so->s_res ) {
935 syncprov_qstart( so );
937 so->s_flags ^= PS_TASK_QUEUED;
940 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
944 /* task for playing back queued responses */
946 syncprov_qtask( void *ctx, void *arg )
949 OperationBuffer opbuf;
956 op->o_hdr = &opbuf.ob_hdr;
957 op->o_controls = opbuf.ob_controls;
958 memset( op->o_controls, 0, sizeof(opbuf.ob_controls) );
960 *op->o_hdr = *so->s_op->o_hdr;
962 op->o_tmpmemctx = slap_sl_mem_create(SLAP_SLAB_SIZE, SLAP_SLAB_STACK, ctx, 1);
963 op->o_tmpmfuncs = &slap_sl_mfuncs;
964 op->o_threadctx = ctx;
966 /* syncprov_qplay expects a fake db */
967 be = *so->s_op->o_bd;
968 be.be_flags |= SLAP_DBFLAG_OVERLAY;
970 LDAP_SLIST_FIRST(&op->o_extra) = NULL;
971 op->o_callback = NULL;
973 rc = syncprov_qplay( op, so );
975 /* decrement use count... */
976 syncprov_free_syncop( so );
981 /* Start the task to play back queued psearch responses */
983 syncprov_qstart( syncops *so )
985 so->s_flags |= PS_TASK_QUEUED;
987 ldap_pvt_thread_pool_submit( &connection_pool,
988 syncprov_qtask, so );
991 /* Queue a persistent search response */
993 syncprov_qresp( opcookie *opc, syncops *so, int mode )
997 struct berval cookie = opc->sctxcsn;
999 if ( mode == LDAP_SYNC_NEW_COOKIE ) {
1000 syncprov_info_t *si = opc->son->on_bi.bi_private;
1002 slap_compose_sync_cookie( NULL, &cookie, si->si_ctxcsn,
1003 so->s_rid, slap_serverID ? slap_serverID : -1);
1006 srsize = sizeof(syncres) + opc->suuid.bv_len + 1 +
1007 opc->sdn.bv_len + 1 + opc->sndn.bv_len + 1;
1008 if ( cookie.bv_len )
1009 srsize += cookie.bv_len + 1;
1010 sr = ch_malloc( srsize );
1012 sr->s_dn.bv_val = (char *)(sr + 1);
1013 sr->s_dn.bv_len = opc->sdn.bv_len;
1015 sr->s_isreference = opc->sreference;
1016 sr->s_ndn.bv_val = lutil_strcopy( sr->s_dn.bv_val,
1017 opc->sdn.bv_val ) + 1;
1018 sr->s_ndn.bv_len = opc->sndn.bv_len;
1019 sr->s_uuid.bv_val = lutil_strcopy( sr->s_ndn.bv_val,
1020 opc->sndn.bv_val ) + 1;
1021 sr->s_uuid.bv_len = opc->suuid.bv_len;
1022 AC_MEMCPY( sr->s_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1023 if ( cookie.bv_len ) {
1024 sr->s_csn.bv_val = sr->s_uuid.bv_val + sr->s_uuid.bv_len + 1;
1025 strcpy( sr->s_csn.bv_val, cookie.bv_val );
1027 sr->s_csn.bv_val = NULL;
1029 sr->s_csn.bv_len = cookie.bv_len;
1031 if ( mode == LDAP_SYNC_NEW_COOKIE && cookie.bv_val ) {
1032 ch_free( cookie.bv_val );
1035 ldap_pvt_thread_mutex_lock( &so->s_mutex );
1039 so->s_restail->s_next = sr;
1043 /* If the base of the psearch was modified, check it next time round */
1044 if ( so->s_flags & PS_WROTE_BASE ) {
1045 so->s_flags ^= PS_WROTE_BASE;
1046 so->s_flags |= PS_FIND_BASE;
1048 if (( so->s_flags & (PS_IS_DETACHED|PS_TASK_QUEUED)) == PS_IS_DETACHED ) {
1049 syncprov_qstart( so );
1051 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
1052 return LDAP_SUCCESS;
1056 syncprov_drop_psearch( syncops *so, int lock )
1058 if ( so->s_flags & PS_IS_DETACHED ) {
1060 ldap_pvt_thread_mutex_lock( &so->s_op->o_conn->c_mutex );
1061 so->s_op->o_conn->c_n_ops_executing--;
1062 so->s_op->o_conn->c_n_ops_completed++;
1063 LDAP_STAILQ_REMOVE( &so->s_op->o_conn->c_ops, so->s_op, Operation,
1066 ldap_pvt_thread_mutex_unlock( &so->s_op->o_conn->c_mutex );
1068 syncprov_free_syncop( so );
1074 syncprov_ab_cleanup( Operation *op, SlapReply *rs )
1076 slap_callback *sc = op->o_callback;
1077 op->o_callback = sc->sc_next;
1078 syncprov_drop_psearch( op->o_callback->sc_private, 0 );
1079 op->o_tmpfree( sc, op->o_tmpmemctx );
1084 syncprov_op_abandon( Operation *op, SlapReply *rs )
1086 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1087 syncprov_info_t *si = on->on_bi.bi_private;
1088 syncops *so, *soprev;
1090 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1091 for ( so=si->si_ops, soprev = (syncops *)&si->si_ops; so;
1092 soprev=so, so=so->s_next ) {
1093 if ( so->s_op->o_connid == op->o_connid &&
1094 so->s_op->o_msgid == op->orn_msgid ) {
1095 so->s_op->o_abandon = 1;
1096 soprev->s_next = so->s_next;
1100 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1102 /* Is this really a Cancel exop? */
1103 if ( op->o_tag != LDAP_REQ_ABANDON ) {
1104 so->s_op->o_cancel = SLAP_CANCEL_ACK;
1105 rs->sr_err = LDAP_CANCELLED;
1106 send_ldap_result( so->s_op, rs );
1107 if ( so->s_flags & PS_IS_DETACHED ) {
1109 cb = op->o_tmpcalloc( 1, sizeof(slap_callback), op->o_tmpmemctx );
1110 cb->sc_cleanup = syncprov_ab_cleanup;
1111 cb->sc_next = op->o_callback;
1112 cb->sc_private = so;
1113 return SLAP_CB_CONTINUE;
1116 syncprov_drop_psearch( so, 0 );
1118 return SLAP_CB_CONTINUE;
1121 /* Find which persistent searches are affected by this operation */
1123 syncprov_matchops( Operation *op, opcookie *opc, int saveit )
1125 slap_overinst *on = opc->son;
1126 syncprov_info_t *si = on->on_bi.bi_private;
1129 syncops *ss, *sprev, *snext;
1133 struct berval newdn;
1135 BackendDB *b0 = op->o_bd, db;
1137 fc.fdn = &op->o_req_ndn;
1138 /* compute new DN */
1139 if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1141 if ( op->orr_nnewSup ) pdn = *op->orr_nnewSup;
1142 else dnParent( fc.fdn, &pdn );
1143 build_new_dn( &newdn, &pdn, &op->orr_nnewrdn, op->o_tmpmemctx );
1147 if ( op->o_tag != LDAP_REQ_ADD ) {
1148 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1152 rc = overlay_entry_get_ov( op, fc.fdn, NULL, NULL, 0, &e, on );
1153 /* If we're sending responses now, make a copy and unlock the DB */
1154 if ( e && !saveit ) {
1155 Entry *e2 = entry_dup( e );
1156 overlay_entry_release_ov( op, e, 0, on );
1167 if ( saveit || op->o_tag == LDAP_REQ_ADD ) {
1168 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1169 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1170 opc->sreference = is_entry_referral( e );
1171 a = attr_find( e->e_attrs, slap_schema.si_ad_entryUUID );
1173 ber_dupbv_x( &opc->suuid, &a->a_nvals[0], op->o_tmpmemctx );
1174 } else if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1175 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1176 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1177 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1178 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1181 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1182 for (ss = si->si_ops, sprev = (syncops *)&si->si_ops; ss;
1183 sprev = ss, ss=snext)
1191 if ( ss->s_op->o_abandon )
1194 /* First time thru, check for possible skips */
1195 if ( saveit || op->o_tag == LDAP_REQ_ADD ) {
1197 /* Don't send ops back to the originator */
1198 if ( opc->osid > 0 && opc->osid == ss->s_sid ) {
1199 Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping original sid %03x\n",
1204 /* Don't send ops back to the messenger */
1205 if ( opc->rsid > 0 && opc->rsid == ss->s_sid ) {
1206 Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping relayed sid %03x\n",
1217 /* If the base of the search is missing, signal a refresh */
1218 rc = syncprov_findbase( op, &fc );
1219 if ( rc != LDAP_SUCCESS ) {
1220 SlapReply rs = {REP_RESULT};
1221 send_ldap_error( ss->s_op, &rs, LDAP_SYNC_REFRESH_REQUIRED,
1222 "search base has changed" );
1223 sprev->s_next = snext;
1224 syncprov_drop_psearch( ss, 1 );
1230 /* If we're sending results now, look for this op in old matches */
1234 /* Did we modify the search base? */
1235 if ( dn_match( &op->o_req_ndn, &ss->s_base )) {
1236 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1237 ss->s_flags |= PS_WROTE_BASE;
1238 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1241 for ( sm=opc->smatches, old=(syncmatches *)&opc->smatches; sm;
1242 old=sm, sm=sm->sm_next ) {
1243 if ( sm->sm_op == ss ) {
1245 old->sm_next = sm->sm_next;
1246 op->o_tmpfree( sm, op->o_tmpmemctx );
1255 oh.oh_conn = ss->s_op->o_conn;
1256 oh.oh_connid = ss->s_op->o_connid;
1257 op2.o_bd = op->o_bd->bd_self;
1259 op2.o_extra = op->o_extra;
1260 op2.o_callback = NULL;
1261 rc = test_filter( &op2, e, ss->s_op->ors_filter );
1264 Debug( LDAP_DEBUG_TRACE, "syncprov_matchops: sid %03x fscope %d rc %d\n",
1265 ss->s_sid, fc.fscope, rc );
1267 /* check if current o_req_dn is in scope and matches filter */
1268 if ( fc.fscope && rc == LDAP_COMPARE_TRUE ) {
1270 sm = op->o_tmpalloc( sizeof(syncmatches), op->o_tmpmemctx );
1271 sm->sm_next = opc->smatches;
1273 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1275 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1278 /* if found send UPDATE else send ADD */
1279 syncprov_qresp( opc, ss,
1280 found ? LDAP_SYNC_MODIFY : LDAP_SYNC_ADD );
1282 } else if ( !saveit && found ) {
1284 syncprov_qresp( opc, ss, LDAP_SYNC_DELETE );
1285 } else if ( !saveit ) {
1286 syncprov_qresp( opc, ss, LDAP_SYNC_NEW_COOKIE );
1288 if ( !saveit && found ) {
1289 /* Decrement s_inuse, was incremented when called
1290 * with saveit == TRUE
1292 syncprov_free_syncop( ss );
1295 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1297 if ( op->o_tag != LDAP_REQ_ADD && e ) {
1298 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1301 overlay_entry_release_ov( op, e, 0, on );
1305 op->o_tmpfree( fc.fdn->bv_val, op->o_tmpmemctx );
1311 syncprov_op_cleanup( Operation *op, SlapReply *rs )
1313 slap_callback *cb = op->o_callback;
1314 opcookie *opc = cb->sc_private;
1315 slap_overinst *on = opc->son;
1316 syncprov_info_t *si = on->on_bi.bi_private;
1317 syncmatches *sm, *snext;
1318 modtarget *mt, mtdummy;
1320 for (sm = opc->smatches; sm; sm=snext) {
1321 snext = sm->sm_next;
1322 syncprov_free_syncop( sm->sm_op );
1323 op->o_tmpfree( sm, op->o_tmpmemctx );
1326 /* Remove op from lock table */
1329 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1330 mt->mt_mods = mt->mt_mods->mi_next;
1331 /* If there are more, promote the next one */
1332 if ( mt->mt_mods ) {
1333 mt->mt_op = mt->mt_mods->mi_op;
1334 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1336 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1337 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1338 avl_delete( &si->si_mods, mt, sp_avl_cmp );
1339 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1340 ldap_pvt_thread_mutex_destroy( &mt->mt_mutex );
1344 if ( !BER_BVISNULL( &opc->suuid ))
1345 op->o_tmpfree( opc->suuid.bv_val, op->o_tmpmemctx );
1346 if ( !BER_BVISNULL( &opc->sndn ))
1347 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1348 if ( !BER_BVISNULL( &opc->sdn ))
1349 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1350 op->o_callback = cb->sc_next;
1351 op->o_tmpfree(cb, op->o_tmpmemctx);
1357 syncprov_checkpoint( Operation *op, SlapReply *rs, slap_overinst *on )
1359 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
1362 SlapReply rsm = { 0 };
1363 slap_callback cb = {0};
1365 struct berval ctxdn;
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;
1392 ctxdn = be.be_nsuffix[0];
1394 ctxdn = si->si_contextdn;
1396 opm.o_req_dn = ctxdn;
1397 opm.o_req_ndn = ctxdn;
1398 opm.o_bd->bd_info = on->on_info->oi_orig;
1399 opm.o_managedsait = SLAP_CONTROL_NONCRITICAL;
1400 opm.o_no_schema_check = 1;
1401 opm.o_bd->be_modify( &opm, &rsm );
1403 if ( rsm.sr_err == LDAP_NO_SUCH_OBJECT &&
1404 SLAP_SYNC_SUBENTRY( opm.o_bd )) {
1406 char txtbuf[SLAP_TEXT_BUFLEN];
1407 size_t textlen = sizeof txtbuf;
1408 Entry *e = slap_create_context_csn_entry( opm.o_bd, NULL );
1409 slap_mods2entry( &mod, &e, 0, 1, &text, txtbuf, textlen);
1411 opm.o_bd->be_add( &opm, &rsm );
1412 if ( e == opm.ora_e )
1413 be_entry_release_w( &opm, opm.ora_e );
1416 if ( mod.sml_next != NULL ) {
1417 slap_mods_free( mod.sml_next, 1 );
1420 for ( i=0; i<si->si_numcsns; i++ ) {
1421 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1427 syncprov_add_slog( Operation *op )
1429 opcookie *opc = op->o_callback->sc_private;
1430 slap_overinst *on = opc->son;
1431 syncprov_info_t *si = on->on_bi.bi_private;
1437 /* Allocate a record. UUIDs are not NUL-terminated. */
1438 se = ch_malloc( sizeof( slog_entry ) + opc->suuid.bv_len +
1439 op->o_csn.bv_len + 1 );
1441 se->se_tag = op->o_tag;
1443 se->se_uuid.bv_val = (char *)(&se[1]);
1444 AC_MEMCPY( se->se_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1445 se->se_uuid.bv_len = opc->suuid.bv_len;
1447 se->se_csn.bv_val = se->se_uuid.bv_val + opc->suuid.bv_len;
1448 AC_MEMCPY( se->se_csn.bv_val, op->o_csn.bv_val, op->o_csn.bv_len );
1449 se->se_csn.bv_val[op->o_csn.bv_len] = '\0';
1450 se->se_csn.bv_len = op->o_csn.bv_len;
1451 se->se_sid = slap_parse_csn_sid( &se->se_csn );
1453 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1454 if ( sl->sl_head ) {
1455 sl->sl_tail->se_next = se;
1461 while ( sl->sl_num > sl->sl_size ) {
1463 sl->sl_head = se->se_next;
1464 strcpy( sl->sl_mincsn.bv_val, se->se_csn.bv_val );
1465 sl->sl_mincsn.bv_len = se->se_csn.bv_len;
1469 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1473 /* Just set a flag if we found the matching entry */
1475 playlog_cb( Operation *op, SlapReply *rs )
1477 if ( rs->sr_type == REP_SEARCH ) {
1478 op->o_callback->sc_private = (void *)1;
1483 /* enter with sl->sl_mutex locked, release before returning */
1485 syncprov_playlog( Operation *op, SlapReply *rs, sessionlog *sl,
1486 sync_control *srs, BerVarray ctxcsn, int numcsns, int *sids )
1488 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1490 int i, j, ndel, num, nmods, mmods;
1491 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
1493 struct berval delcsn[2];
1495 if ( !sl->sl_num ) {
1496 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1504 uuids = op->o_tmpalloc( (num+1) * sizeof( struct berval ) +
1505 num * UUID_LEN, op->o_tmpmemctx );
1506 uuids[0].bv_val = (char *)(uuids + num + 1);
1508 delcsn[0].bv_len = 0;
1509 delcsn[0].bv_val = cbuf;
1510 BER_BVZERO(&delcsn[1]);
1512 /* Make a copy of the relevant UUIDs. Put the Deletes up front
1513 * and everything else at the end. Do this first so we can
1514 * unlock the list mutex.
1516 Debug( LDAP_DEBUG_SYNC, "srs csn %s\n",
1517 srs->sr_state.ctxcsn[0].bv_val, 0, 0 );
1518 for ( se=sl->sl_head; se; se=se->se_next ) {
1520 Debug( LDAP_DEBUG_SYNC, "log csn %s\n", se->se_csn.bv_val, 0, 0 );
1522 for ( k=0; k<srs->sr_state.numcsns; k++ ) {
1523 if ( se->se_sid == srs->sr_state.sids[k] ) {
1524 ndel = ber_bvcmp( &se->se_csn, &srs->sr_state.ctxcsn[k] );
1529 Debug( LDAP_DEBUG_SYNC, "cmp %d, too old\n", ndel, 0, 0 );
1533 for ( k=0; k<numcsns; k++ ) {
1534 if ( se->se_sid == sids[k] ) {
1535 ndel = ber_bvcmp( &se->se_csn, &ctxcsn[k] );
1540 Debug( LDAP_DEBUG_SYNC, "cmp %d, too new\n", ndel, 0, 0 );
1543 if ( se->se_tag == LDAP_REQ_DELETE ) {
1546 AC_MEMCPY( cbuf, se->se_csn.bv_val, se->se_csn.bv_len );
1547 delcsn[0].bv_len = se->se_csn.bv_len;
1548 delcsn[0].bv_val[delcsn[0].bv_len] = '\0';
1553 uuids[j].bv_val = uuids[0].bv_val + (j * UUID_LEN);
1554 AC_MEMCPY(uuids[j].bv_val, se->se_uuid.bv_val, UUID_LEN);
1555 uuids[j].bv_len = UUID_LEN;
1557 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1561 /* Zero out unused slots */
1562 for ( i=ndel; i < num - nmods; i++ )
1563 uuids[i].bv_len = 0;
1565 /* Mods must be validated to see if they belong in this delete set.
1569 /* Strip any duplicates */
1570 for ( i=0; i<nmods; i++ ) {
1571 for ( j=0; j<ndel; j++ ) {
1572 if ( bvmatch( &uuids[j], &uuids[num - 1 - i] )) {
1573 uuids[num - 1 - i].bv_len = 0;
1578 if ( uuids[num - 1 - i].bv_len == 0 ) continue;
1579 for ( j=0; j<i; j++ ) {
1580 if ( bvmatch( &uuids[num - 1 - j], &uuids[num - 1 - i] )) {
1581 uuids[num - 1 - i].bv_len = 0;
1590 SlapReply frs = { REP_RESULT };
1593 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
1594 slap_callback cb = {0};
1598 fop.o_sync_mode = 0;
1599 fop.o_callback = &cb;
1600 fop.ors_limit = NULL;
1601 fop.ors_tlimit = SLAP_NO_LIMIT;
1602 fop.ors_attrs = slap_anlist_all_attributes;
1603 fop.ors_attrsonly = 0;
1604 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
1606 af.f_choice = LDAP_FILTER_AND;
1609 mf.f_choice = LDAP_FILTER_EQUALITY;
1611 mf.f_av_desc = slap_schema.si_ad_entryUUID;
1612 mf.f_next = fop.ors_filter;
1614 fop.ors_filter = ⁡
1616 cb.sc_response = playlog_cb;
1617 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
1619 for ( i=ndel; i<num; i++ ) {
1620 if ( uuids[i].bv_len == 0 ) continue;
1622 mf.f_av_value = uuids[i];
1623 cb.sc_private = NULL;
1625 frs.sr_nentries = 0;
1626 rc = fop.o_bd->be_search( &fop, &frs );
1628 /* If entry was not found, add to delete list */
1629 if ( !cb.sc_private ) {
1630 uuids[ndel++] = uuids[i];
1633 fop.o_bd->bd_info = (BackendInfo *)on;
1636 struct berval cookie;
1638 if ( delcsn[0].bv_len ) {
1639 slap_compose_sync_cookie( op, &cookie, delcsn, srs->sr_state.rid,
1640 slap_serverID ? slap_serverID : -1 );
1642 Debug( LDAP_DEBUG_SYNC, "syncprov_playlog: cookie=%s\n", cookie.bv_val, 0, 0 );
1645 uuids[ndel].bv_val = NULL;
1646 syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET,
1647 delcsn[0].bv_len ? &cookie : NULL, 0, uuids, 1 );
1648 if ( delcsn[0].bv_len ) {
1649 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
1652 op->o_tmpfree( uuids, op->o_tmpmemctx );
1656 syncprov_op_response( Operation *op, SlapReply *rs )
1658 opcookie *opc = op->o_callback->sc_private;
1659 slap_overinst *on = opc->son;
1660 syncprov_info_t *si = on->on_bi.bi_private;
1663 if ( rs->sr_err == LDAP_SUCCESS )
1665 struct berval maxcsn;
1666 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
1667 int do_check = 0, have_psearches, foundit, csn_changed = 0;
1669 ldap_pvt_thread_mutex_lock( &si->si_resp_mutex );
1671 /* Update our context CSN */
1673 maxcsn.bv_val = cbuf;
1674 maxcsn.bv_len = sizeof(cbuf);
1675 ldap_pvt_thread_rdwr_wlock( &si->si_csn_rwlock );
1677 if ( op->o_dont_replicate && op->o_tag == LDAP_REQ_MODIFY &&
1678 op->orm_modlist->sml_op == LDAP_MOD_REPLACE &&
1679 op->orm_modlist->sml_desc == slap_schema.si_ad_contextCSN ) {
1680 /* Catch contextCSN updates from syncrepl. We have to look at
1681 * all the attribute values, as there may be more than one csn
1682 * that changed, and only one can be passed in the csn queue.
1684 Modifications *mod = op->orm_modlist;
1687 for ( i=0; i<mod->sml_numvals; i++ ) {
1688 sid = slap_parse_csn_sid( &mod->sml_values[i] );
1690 for ( j=0; j<si->si_numcsns; j++ ) {
1691 if ( sid == si->si_sids[j] ) {
1692 if ( ber_bvcmp( &mod->sml_values[i], &si->si_ctxcsn[j] ) > 0 ) {
1693 ber_bvreplace( &si->si_ctxcsn[j], &mod->sml_values[i] );
1700 if ( j == si->si_numcsns ) {
1701 value_add_one( &si->si_ctxcsn, &mod->sml_values[i] );
1703 si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
1705 si->si_sids[j] = sid;
1709 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1711 if ( csn_changed ) {
1712 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1713 have_psearches = ( si->si_ops != NULL );
1714 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1716 if ( have_psearches ) {
1717 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1718 if ( sm->sm_op->s_op->o_abandon )
1720 syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_NEW_COOKIE );
1727 slap_get_commit_csn( op, &maxcsn, &foundit );
1728 if ( BER_BVISEMPTY( &maxcsn ) && SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1729 /* syncrepl queues the CSN values in the db where
1730 * it is configured , not where the changes are made.
1731 * So look for a value in the glue db if we didn't
1732 * find any in this db.
1734 BackendDB *be = op->o_bd;
1735 op->o_bd = select_backend( &be->be_nsuffix[0], 1);
1736 maxcsn.bv_val = cbuf;
1737 maxcsn.bv_len = sizeof(cbuf);
1738 slap_get_commit_csn( op, &maxcsn, &foundit );
1741 if ( !BER_BVISEMPTY( &maxcsn ) ) {
1744 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1745 assert( !syn->ssyn_validate( syn, &maxcsn ));
1747 sid = slap_parse_csn_sid( &maxcsn );
1748 for ( i=0; i<si->si_numcsns; i++ ) {
1749 if ( sid == si->si_sids[i] ) {
1750 if ( ber_bvcmp( &maxcsn, &si->si_ctxcsn[i] ) > 0 ) {
1751 ber_bvreplace( &si->si_ctxcsn[i], &maxcsn );
1757 /* It's a new SID for us */
1758 if ( i == si->si_numcsns ) {
1759 value_add_one( &si->si_ctxcsn, &maxcsn );
1762 si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
1764 si->si_sids[i] = sid;
1767 } else if ( !foundit ) {
1768 /* internal ops that aren't meant to be replicated */
1769 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1770 return SLAP_CB_CONTINUE;
1774 /* Don't do any processing for consumer contextCSN updates */
1775 if ( op->o_dont_replicate ) {
1776 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1781 if ( si->si_chkops || si->si_chktime ) {
1782 /* Never checkpoint adding the context entry,
1785 if ( op->o_tag != LDAP_REQ_ADD ||
1786 !dn_match( &op->o_req_ndn, &si->si_contextdn )) {
1787 if ( si->si_chkops && si->si_numops >= si->si_chkops ) {
1791 if ( si->si_chktime &&
1792 (op->o_time - si->si_chklast >= si->si_chktime )) {
1793 if ( si->si_chklast ) {
1795 si->si_chklast = op->o_time;
1802 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1805 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1806 syncprov_checkpoint( op, rs, on );
1807 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1810 /* only update consumer ctx if this is a newer csn */
1811 if ( csn_changed ) {
1812 opc->sctxcsn = maxcsn;
1815 /* Handle any persistent searches */
1816 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1817 have_psearches = ( si->si_ops != NULL );
1818 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1819 if ( have_psearches ) {
1822 case LDAP_REQ_MODIFY:
1823 case LDAP_REQ_MODRDN:
1824 case LDAP_REQ_EXTENDED:
1825 syncprov_matchops( op, opc, 0 );
1827 case LDAP_REQ_DELETE:
1828 /* for each match in opc->smatches:
1831 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1832 if ( sm->sm_op->s_op->o_abandon )
1834 syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_DELETE );
1840 /* Add any log records */
1841 if ( si->si_logs && op->o_tag != LDAP_REQ_ADD ) {
1842 syncprov_add_slog( op );
1844 leave: ldap_pvt_thread_mutex_unlock( &si->si_resp_mutex );
1846 return SLAP_CB_CONTINUE;
1849 /* We don't use a subentry to store the context CSN any more.
1850 * We expose the current context CSN as an operational attribute
1851 * of the suffix entry.
1854 syncprov_op_compare( Operation *op, SlapReply *rs )
1856 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1857 syncprov_info_t *si = on->on_bi.bi_private;
1858 int rc = SLAP_CB_CONTINUE;
1860 if ( dn_match( &op->o_req_ndn, &si->si_contextdn ) &&
1861 op->oq_compare.rs_ava->aa_desc == slap_schema.si_ad_contextCSN )
1866 e.e_name = si->si_contextdn;
1867 e.e_nname = si->si_contextdn;
1870 a.a_desc = slap_schema.si_ad_contextCSN;
1872 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1874 a.a_vals = si->si_ctxcsn;
1875 a.a_nvals = a.a_vals;
1876 a.a_numvals = si->si_numcsns;
1878 rs->sr_err = access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc,
1879 &op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL );
1880 if ( ! rs->sr_err ) {
1881 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1882 goto return_results;
1885 if ( get_assert( op ) &&
1886 ( test_filter( op, &e, get_assertion( op ) ) != LDAP_COMPARE_TRUE ) )
1888 rs->sr_err = LDAP_ASSERTION_FAILED;
1889 goto return_results;
1893 rs->sr_err = LDAP_COMPARE_FALSE;
1895 if ( attr_valfind( &a,
1896 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
1897 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
1898 &op->oq_compare.rs_ava->aa_value, NULL, op->o_tmpmemctx ) == 0 )
1900 rs->sr_err = LDAP_COMPARE_TRUE;
1905 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1907 send_ldap_result( op, rs );
1909 if( rs->sr_err == LDAP_COMPARE_FALSE || rs->sr_err == LDAP_COMPARE_TRUE ) {
1910 rs->sr_err = LDAP_SUCCESS;
1919 syncprov_op_mod( Operation *op, SlapReply *rs )
1921 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1922 syncprov_info_t *si = on->on_bi.bi_private;
1925 int have_psearches, cbsize;
1927 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1928 have_psearches = ( si->si_ops != NULL );
1929 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1931 cbsize = sizeof(slap_callback) + sizeof(opcookie) +
1932 (have_psearches ? sizeof(modinst) : 0 );
1934 cb = op->o_tmpcalloc(1, cbsize, op->o_tmpmemctx);
1935 opc = (opcookie *)(cb+1);
1937 cb->sc_response = syncprov_op_response;
1938 cb->sc_cleanup = syncprov_op_cleanup;
1939 cb->sc_private = opc;
1940 cb->sc_next = op->o_callback;
1941 op->o_callback = cb;
1945 if ( op->o_csn.bv_val ) {
1946 opc->osid = slap_parse_csn_sid( &op->o_csn );
1948 if ( op->o_controls ) {
1949 struct sync_cookie *scook =
1950 op->o_controls[slap_cids.sc_LDAPsync];
1952 opc->rsid = scook->sid;
1955 /* If there are active persistent searches, lock this operation.
1956 * See seqmod.c for the locking logic on its own.
1958 if ( have_psearches ) {
1959 modtarget *mt, mtdummy;
1962 mi = (modinst *)(opc+1);
1965 /* See if we're already modifying this entry... */
1967 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1968 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
1970 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1971 if ( mt->mt_mods == NULL ) {
1972 /* Cannot reuse this mt, as another thread is about
1973 * to release it in syncprov_op_cleanup.
1975 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1980 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1981 mt->mt_tail->mi_next = mi;
1983 /* wait for this op to get to head of list */
1984 while ( mt->mt_mods != mi ) {
1985 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1986 /* FIXME: if dynamic config can delete overlays or
1987 * databases we'll have to check for cleanup here.
1988 * Currently it's not an issue because there are
1989 * no dynamic config deletes...
1991 if ( slapd_shutdown )
1992 return SLAPD_ABANDON;
1994 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
1995 ldap_pvt_thread_yield();
1996 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1998 /* clean up if the caller is giving up */
1999 if ( op->o_abandon ) {
2001 for ( m2 = mt->mt_mods; m2->mi_next != mi;
2003 m2->mi_next = mi->mi_next;
2004 if ( mt->mt_tail == mi ) mt->mt_tail = m2;
2005 op->o_tmpfree( cb, op->o_tmpmemctx );
2006 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2007 return SLAPD_ABANDON;
2010 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2012 /* Record that we're modifying this entry now */
2013 mt = ch_malloc( sizeof(modtarget) );
2016 mt->mt_op = mi->mi_op;
2017 ldap_pvt_thread_mutex_init( &mt->mt_mutex );
2018 avl_insert( &si->si_mods, mt, sp_avl_cmp, avl_dup_error );
2019 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
2024 if (( have_psearches || si->si_logs ) && op->o_tag != LDAP_REQ_ADD )
2025 syncprov_matchops( op, opc, 1 );
2027 return SLAP_CB_CONTINUE;
2031 syncprov_op_extended( Operation *op, SlapReply *rs )
2033 if ( exop_is_write( op ))
2034 return syncprov_op_mod( op, rs );
2036 return SLAP_CB_CONTINUE;
2039 typedef struct searchstate {
2040 slap_overinst *ss_on;
2042 BerVarray ss_ctxcsn;
2045 #define SS_PRESENT 0x01
2046 #define SS_CHANGED 0x02
2051 syncprov_search_cleanup( Operation *op, SlapReply *rs )
2053 if ( rs->sr_ctrls ) {
2054 op->o_tmpfree( rs->sr_ctrls[0], op->o_tmpmemctx );
2055 op->o_tmpfree( rs->sr_ctrls, op->o_tmpmemctx );
2056 rs->sr_ctrls = NULL;
2061 typedef struct SyncOperationBuffer {
2065 AttributeName sob_extra; /* not always present */
2066 /* Further data allocated here */
2067 } SyncOperationBuffer;
2070 syncprov_detach_op( Operation *op, syncops *so, slap_overinst *on )
2072 SyncOperationBuffer *sopbuf2;
2077 GroupAssertion *g1, *g2;
2079 /* count the search attrs */
2080 for (i=0; op->ors_attrs && !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2081 alen += op->ors_attrs[i].an_name.bv_len + 1;
2083 /* Make a new copy of the operation */
2084 size = offsetof( SyncOperationBuffer, sob_extra ) +
2085 (i ? ( (i+1) * sizeof(AttributeName) + alen) : 0) +
2086 op->o_req_dn.bv_len + 1 +
2087 op->o_req_ndn.bv_len + 1 +
2088 op->o_ndn.bv_len + 1 +
2089 so->s_filterstr.bv_len + 1;
2090 sopbuf2 = ch_calloc( 1, size );
2091 op2 = &sopbuf2->sob_op;
2092 op2->o_hdr = &sopbuf2->sob_hdr;
2093 LDAP_SLIST_FIRST(&op2->o_extra) = &sopbuf2->sob_oe;
2095 /* Copy the fields we care about explicitly, leave the rest alone */
2096 *op2->o_hdr = *op->o_hdr;
2097 op2->o_tag = op->o_tag;
2098 op2->o_time = op->o_time;
2099 op2->o_bd = on->on_info->oi_origdb;
2100 op2->o_request = op->o_request;
2101 op2->o_managedsait = op->o_managedsait;
2102 LDAP_SLIST_FIRST(&op2->o_extra)->oe_key = on;
2103 LDAP_SLIST_NEXT(LDAP_SLIST_FIRST(&op2->o_extra), oe_next) = NULL;
2105 ptr = (char *) sopbuf2 + offsetof( SyncOperationBuffer, sob_extra );
2107 op2->ors_attrs = (AttributeName *) ptr;
2108 ptr = (char *) &op2->ors_attrs[i+1];
2109 for (i=0; !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2110 op2->ors_attrs[i] = op->ors_attrs[i];
2111 op2->ors_attrs[i].an_name.bv_val = ptr;
2112 ptr = lutil_strcopy( ptr, op->ors_attrs[i].an_name.bv_val ) + 1;
2114 BER_BVZERO( &op2->ors_attrs[i].an_name );
2117 op2->o_authz = op->o_authz;
2118 op2->o_ndn.bv_val = ptr;
2119 ptr = lutil_strcopy(ptr, op->o_ndn.bv_val) + 1;
2120 op2->o_dn = op2->o_ndn;
2121 op2->o_req_dn.bv_len = op->o_req_dn.bv_len;
2122 op2->o_req_dn.bv_val = ptr;
2123 ptr = lutil_strcopy(ptr, op->o_req_dn.bv_val) + 1;
2124 op2->o_req_ndn.bv_len = op->o_req_ndn.bv_len;
2125 op2->o_req_ndn.bv_val = ptr;
2126 ptr = lutil_strcopy(ptr, op->o_req_ndn.bv_val) + 1;
2127 op2->ors_filterstr.bv_val = ptr;
2128 strcpy( ptr, so->s_filterstr.bv_val );
2129 op2->ors_filterstr.bv_len = so->s_filterstr.bv_len;
2131 /* Skip the AND/GE clause that we stuck on in front */
2132 if ( so->s_flags & PS_FIX_FILTER ) {
2133 op2->ors_filter = op->ors_filter->f_and->f_next;
2134 so->s_flags ^= PS_FIX_FILTER;
2136 op2->ors_filter = op->ors_filter;
2138 op2->ors_filter = filter_dup( op2->ors_filter, NULL );
2141 /* Copy any cached group ACLs individually */
2142 op2->o_groups = NULL;
2143 for ( g1=op->o_groups; g1; g1=g1->ga_next ) {
2144 g2 = ch_malloc( sizeof(GroupAssertion) + g1->ga_len );
2146 strcpy( g2->ga_ndn, g1->ga_ndn );
2147 g2->ga_next = op2->o_groups;
2150 /* Don't allow any further group caching */
2151 op2->o_do_not_cache = 1;
2153 /* Add op2 to conn so abandon will find us */
2154 op->o_conn->c_n_ops_executing++;
2155 op->o_conn->c_n_ops_completed--;
2156 LDAP_STAILQ_INSERT_TAIL( &op->o_conn->c_ops, op2, o_next );
2157 so->s_flags |= PS_IS_DETACHED;
2159 /* Prevent anyone else from trying to send a result for this op */
2164 syncprov_search_response( Operation *op, SlapReply *rs )
2166 searchstate *ss = op->o_callback->sc_private;
2167 slap_overinst *on = ss->ss_on;
2168 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2169 sync_control *srs = op->o_controls[slap_cids.sc_LDAPsync];
2171 if ( rs->sr_type == REP_SEARCH || rs->sr_type == REP_SEARCHREF ) {
2173 /* If we got a referral without a referral object, there's
2174 * something missing that we cannot replicate. Just ignore it.
2175 * The consumer will abort because we didn't send the expected
2178 if ( !rs->sr_entry ) {
2179 assert( rs->sr_entry != NULL );
2180 Debug( LDAP_DEBUG_ANY, "bogus referral in context\n",0,0,0 );
2181 return SLAP_CB_CONTINUE;
2183 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryCSN );
2184 if ( a == NULL && rs->sr_operational_attrs != NULL ) {
2185 a = attr_find( rs->sr_operational_attrs, slap_schema.si_ad_entryCSN );
2189 sid = slap_parse_csn_sid( &a->a_nvals[0] );
2191 /* Don't send changed entries back to the originator */
2192 if ( sid == srs->sr_state.sid && srs->sr_state.numcsns ) {
2193 Debug( LDAP_DEBUG_SYNC,
2194 "Entry %s changed by peer, ignored\n",
2195 rs->sr_entry->e_name.bv_val, 0, 0 );
2196 return LDAP_SUCCESS;
2199 /* If not a persistent search */
2201 /* Make sure entry is less than the snapshot'd contextCSN */
2202 for ( i=0; i<ss->ss_numcsns; i++ ) {
2203 if ( sid == ss->ss_sids[i] && ber_bvcmp( &a->a_nvals[0],
2204 &ss->ss_ctxcsn[i] ) > 0 ) {
2205 Debug( LDAP_DEBUG_SYNC,
2206 "Entry %s CSN %s greater than snapshot %s\n",
2207 rs->sr_entry->e_name.bv_val,
2208 a->a_nvals[0].bv_val,
2209 ss->ss_ctxcsn[i].bv_val );
2210 return LDAP_SUCCESS;
2215 /* Don't send old entries twice */
2216 if ( srs->sr_state.ctxcsn ) {
2217 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2218 if ( sid == srs->sr_state.sids[i] &&
2219 ber_bvcmp( &a->a_nvals[0],
2220 &srs->sr_state.ctxcsn[i] )<= 0 ) {
2221 Debug( LDAP_DEBUG_SYNC,
2222 "Entry %s CSN %s older or equal to ctx %s\n",
2223 rs->sr_entry->e_name.bv_val,
2224 a->a_nvals[0].bv_val,
2225 srs->sr_state.ctxcsn[i].bv_val );
2226 return LDAP_SUCCESS;
2231 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2233 rs->sr_ctrls[1] = NULL;
2234 /* If we're in delta-sync mode, always send a cookie */
2235 if ( si->si_nopres && si->si_usehint && a ) {
2236 struct berval cookie;
2237 slap_compose_sync_cookie( op, &cookie, a->a_nvals, srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
2238 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2239 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 1, &cookie );
2241 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2242 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 0, NULL );
2244 } else if ( rs->sr_type == REP_RESULT && rs->sr_err == LDAP_SUCCESS ) {
2245 struct berval cookie = BER_BVNULL;
2247 if ( ( ss->ss_flags & SS_CHANGED ) &&
2248 ss->ss_ctxcsn && !BER_BVISNULL( &ss->ss_ctxcsn[0] )) {
2249 slap_compose_sync_cookie( op, &cookie, ss->ss_ctxcsn,
2250 srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
2252 Debug( LDAP_DEBUG_SYNC, "syncprov_search_response: cookie=%s\n", cookie.bv_val, 0, 0 );
2255 /* Is this a regular refresh?
2256 * Note: refresh never gets here if there were no changes
2259 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2261 rs->sr_ctrls[1] = NULL;
2262 rs->sr_err = syncprov_done_ctrl( op, rs, rs->sr_ctrls,
2263 0, 1, &cookie, ( ss->ss_flags & SS_PRESENT ) ? LDAP_SYNC_REFRESH_PRESENTS :
2264 LDAP_SYNC_REFRESH_DELETES );
2265 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2267 /* It's RefreshAndPersist, transition to Persist phase */
2268 syncprov_sendinfo( op, rs, ( ss->ss_flags & SS_PRESENT ) ?
2269 LDAP_TAG_SYNC_REFRESH_PRESENT : LDAP_TAG_SYNC_REFRESH_DELETE,
2270 ( ss->ss_flags & SS_CHANGED ) ? &cookie : NULL,
2272 if ( !BER_BVISNULL( &cookie ))
2273 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2275 /* Detach this Op from frontend control */
2276 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
2278 /* But not if this connection was closed along the way */
2279 if ( op->o_abandon ) {
2280 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2281 /* syncprov_ab_cleanup will free this syncop */
2282 return SLAPD_ABANDON;
2285 ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex );
2286 /* Turn off the refreshing flag */
2287 ss->ss_so->s_flags ^= PS_IS_REFRESHING;
2289 syncprov_detach_op( op, ss->ss_so, on );
2291 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2293 /* If there are queued responses, fire them off */
2294 if ( ss->ss_so->s_res )
2295 syncprov_qstart( ss->ss_so );
2296 ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
2299 return LDAP_SUCCESS;
2303 return SLAP_CB_CONTINUE;
2307 syncprov_op_search( Operation *op, SlapReply *rs )
2309 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2310 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2312 int gotstate = 0, changed = 0, do_present = 0;
2313 syncops *sop = NULL;
2317 int i, *sids, numcsns;
2318 struct berval mincsn;
2320 if ( !(op->o_sync_mode & SLAP_SYNC_REFRESH) ) return SLAP_CB_CONTINUE;
2322 if ( op->ors_deref & LDAP_DEREF_SEARCHING ) {
2323 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR, "illegal value for derefAliases" );
2327 srs = op->o_controls[slap_cids.sc_LDAPsync];
2329 /* If this is a persistent search, set it up right away */
2330 if ( op->o_sync_mode & SLAP_SYNC_PERSIST ) {
2340 so.s_flags = PS_IS_REFRESHING | PS_FIND_BASE;
2341 /* syncprov_findbase expects to be called as a callback... */
2342 sc.sc_private = &opc;
2344 ldap_pvt_thread_mutex_init( &so.s_mutex );
2345 cb = op->o_callback;
2346 op->o_callback = ≻
2347 rs->sr_err = syncprov_findbase( op, &fc );
2348 op->o_callback = cb;
2349 ldap_pvt_thread_mutex_destroy( &so.s_mutex );
2351 if ( rs->sr_err != LDAP_SUCCESS ) {
2352 send_ldap_result( op, rs );
2355 sop = ch_malloc( sizeof( syncops ));
2357 ldap_pvt_thread_mutex_init( &sop->s_mutex );
2358 sop->s_rid = srs->sr_state.rid;
2359 sop->s_sid = srs->sr_state.sid;
2362 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2363 sop->s_next = si->si_ops;
2365 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2368 /* snapshot the ctxcsn */
2369 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2370 numcsns = si->si_numcsns;
2372 ber_bvarray_dup_x( &ctxcsn, si->si_ctxcsn, op->o_tmpmemctx );
2373 sids = op->o_tmpalloc( numcsns * sizeof(int), op->o_tmpmemctx );
2374 for ( i=0; i<numcsns; i++ )
2375 sids[i] = si->si_sids[i];
2380 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2382 /* If we have a cookie, handle the PRESENT lookups */
2383 if ( srs->sr_state.ctxcsn ) {
2387 /* If we don't have any CSN of our own yet, pretend nothing
2393 if ( !si->si_nopres )
2394 do_present = SS_PRESENT;
2396 /* If there are SIDs we don't recognize in the cookie, drop them */
2397 for (i=0; i<srs->sr_state.numcsns; ) {
2398 for (j=0; j<numcsns; j++) {
2399 if ( srs->sr_state.sids[i] == sids[j] ) {
2404 if ( j == numcsns ) {
2405 struct berval tmp = srs->sr_state.ctxcsn[i];
2406 j = srs->sr_state.numcsns - 1;
2407 srs->sr_state.ctxcsn[i] = srs->sr_state.ctxcsn[j];
2409 srs->sr_state.ctxcsn[j] = tmp;
2410 srs->sr_state.numcsns = j;
2411 srs->sr_state.sids[i] = srs->sr_state.sids[j];
2417 /* Find the smallest CSN */
2418 mincsn = srs->sr_state.ctxcsn[0];
2419 for ( i=1; i<srs->sr_state.numcsns; i++ ) {
2420 if ( ber_bvcmp( &mincsn, &srs->sr_state.ctxcsn[i] ) > 0 )
2421 mincsn = srs->sr_state.ctxcsn[i];
2424 /* If nothing has changed, shortcut it */
2425 if ( srs->sr_state.numcsns == numcsns ) {
2427 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2428 for ( j=0; j<numcsns; j++ ) {
2429 if ( srs->sr_state.sids[i] != sids[j] )
2431 newer = ber_bvcmp( &srs->sr_state.ctxcsn[i], &ctxcsn[j] );
2432 /* If our state is newer, tell consumer about changes */
2434 changed = SS_CHANGED;
2435 else if ( newer > 0 ) {
2436 /* our state is older, tell consumer nothing */
2438 syncops **sp = &si->si_ops;
2440 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2441 while ( *sp != sop )
2442 sp = &(*sp)->s_next;
2444 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2447 rs->sr_err = LDAP_SUCCESS;
2448 rs->sr_ctrls = NULL;
2449 send_ldap_result( op, rs );
2459 no_change: if ( !(op->o_sync_mode & SLAP_SYNC_PERSIST) ) {
2460 LDAPControl *ctrls[2];
2464 syncprov_done_ctrl( op, rs, ctrls, 0, 0,
2465 NULL, LDAP_SYNC_REFRESH_DELETES );
2466 rs->sr_ctrls = ctrls;
2467 rs->sr_err = LDAP_SUCCESS;
2468 send_ldap_result( op, rs );
2469 rs->sr_ctrls = NULL;
2475 /* consumer doesn't have the right number of CSNs */
2476 changed = SS_CHANGED;
2478 /* Do we have a sessionlog for this search? */
2481 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
2482 /* Are there any log entries, and is the consumer state
2483 * present in the session log?
2485 if ( sl->sl_num > 0 && ber_bvcmp( &mincsn, &sl->sl_mincsn ) >= 0 ) {
2487 /* mutex is unlocked in playlog */
2488 syncprov_playlog( op, rs, sl, srs, ctxcsn, numcsns, sids );
2490 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
2493 /* Is the CSN still present in the database? */
2494 if ( syncprov_findcsn( op, FIND_CSN ) != LDAP_SUCCESS ) {
2495 /* No, so a reload is required */
2496 /* the 2.2 consumer doesn't send this hint */
2497 if ( si->si_usehint && srs->sr_rhint == 0 ) {
2499 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2501 op->o_tmpfree( sids, op->o_tmpmemctx );
2502 send_ldap_error( op, rs, LDAP_SYNC_REFRESH_REQUIRED, "sync cookie is stale" );
2505 if ( srs->sr_state.ctxcsn ) {
2506 ber_bvarray_free_x( srs->sr_state.ctxcsn, op->o_tmpmemctx );
2507 srs->sr_state.ctxcsn = NULL;
2509 if ( srs->sr_state.sids ) {
2510 slap_sl_free( srs->sr_state.sids, op->o_tmpmemctx );
2511 srs->sr_state.sids = NULL;
2513 srs->sr_state.numcsns = 0;
2516 /* If changed and doing Present lookup, send Present UUIDs */
2517 if ( do_present && syncprov_findcsn( op, FIND_PRESENT ) !=
2520 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2522 op->o_tmpfree( sids, op->o_tmpmemctx );
2523 send_ldap_result( op, rs );
2528 /* No consumer state, assume something has changed */
2529 changed = SS_CHANGED;
2533 /* Append CSN range to search filter, save original filter
2534 * for persistent search evaluation
2537 sop->s_filterstr= op->ors_filterstr;
2540 /* If something changed, find the changes */
2541 if ( gotstate && changed ) {
2542 Filter *fand, *fava;
2544 fand = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2545 fand->f_choice = LDAP_FILTER_AND;
2546 fand->f_next = NULL;
2547 fava = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2549 fava->f_choice = LDAP_FILTER_GE;
2550 fava->f_ava = op->o_tmpalloc( sizeof(AttributeAssertion), op->o_tmpmemctx );
2551 fava->f_ava->aa_desc = slap_schema.si_ad_entryCSN;
2552 #ifdef LDAP_COMP_MATCH
2553 fava->f_ava->aa_cf = NULL;
2555 ber_dupbv_x( &fava->f_ava->aa_value, &mincsn, op->o_tmpmemctx );
2556 fava->f_next = op->ors_filter;
2557 op->ors_filter = fand;
2558 filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2560 sop->s_flags |= PS_FIX_FILTER;
2563 /* Let our callback add needed info to returned entries */
2564 cb = op->o_tmpcalloc(1, sizeof(slap_callback)+sizeof(searchstate), op->o_tmpmemctx);
2565 ss = (searchstate *)(cb+1);
2568 ss->ss_flags = do_present | changed;
2569 ss->ss_ctxcsn = ctxcsn;
2570 ss->ss_numcsns = numcsns;
2572 cb->sc_response = syncprov_search_response;
2573 cb->sc_cleanup = syncprov_search_cleanup;
2574 cb->sc_private = ss;
2575 cb->sc_next = op->o_callback;
2576 op->o_callback = cb;
2578 /* If this is a persistent search and no changes were reported during
2579 * the refresh phase, just invoke the response callback to transition
2580 * us into persist phase
2583 rs->sr_err = LDAP_SUCCESS;
2584 rs->sr_nentries = 0;
2585 send_ldap_result( op, rs );
2588 return SLAP_CB_CONTINUE;
2592 syncprov_operational(
2596 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2597 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2599 /* This prevents generating unnecessarily; frontend will strip
2600 * any statically stored copy.
2602 if ( op->o_sync != SLAP_CONTROL_NONE )
2603 return SLAP_CB_CONTINUE;
2605 if ( rs->sr_entry &&
2606 dn_match( &rs->sr_entry->e_nname, &si->si_contextdn )) {
2608 if ( SLAP_OPATTRS( rs->sr_attr_flags ) ||
2609 ad_inlist( slap_schema.si_ad_contextCSN, rs->sr_attrs )) {
2610 Attribute *a, **ap = NULL;
2612 for ( a=rs->sr_entry->e_attrs; a; a=a->a_next ) {
2613 if ( a->a_desc == slap_schema.si_ad_contextCSN )
2617 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2618 if ( si->si_ctxcsn ) {
2620 for ( ap = &rs->sr_operational_attrs; *ap;
2621 ap=&(*ap)->a_next );
2623 a = attr_alloc( slap_schema.si_ad_contextCSN );
2628 if ( !(rs->sr_flags & REP_ENTRY_MODIFIABLE) ) {
2629 Entry *e = entry_dup( rs->sr_entry );
2630 if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
2631 overlay_entry_release_ov( op, rs->sr_entry, 0, on );
2632 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
2633 } else if ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) {
2634 entry_free( rs->sr_entry );
2638 REP_ENTRY_MODIFIABLE|REP_ENTRY_MUSTBEFREED;
2639 a = attr_find( rs->sr_entry->e_attrs,
2640 slap_schema.si_ad_contextCSN );
2642 if ( a->a_nvals != a->a_vals ) {
2643 ber_bvarray_free( a->a_nvals );
2646 ber_bvarray_free( a->a_vals );
2650 attr_valadd( a, si->si_ctxcsn, si->si_ctxcsn, si->si_numcsns );
2652 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2655 return SLAP_CB_CONTINUE;
2665 static ConfigDriver sp_cf_gen;
2667 static ConfigTable spcfg[] = {
2668 { "syncprov-checkpoint", "ops> <minutes", 3, 3, 0, ARG_MAGIC|SP_CHKPT,
2669 sp_cf_gen, "( OLcfgOvAt:1.1 NAME 'olcSpCheckpoint' "
2670 "DESC 'ContextCSN checkpoint interval in ops and minutes' "
2671 "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
2672 { "syncprov-sessionlog", "ops", 2, 2, 0, ARG_INT|ARG_MAGIC|SP_SESSL,
2673 sp_cf_gen, "( OLcfgOvAt:1.2 NAME 'olcSpSessionlog' "
2674 "DESC 'Session log size in ops' "
2675 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
2676 { "syncprov-nopresent", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_NOPRES,
2677 sp_cf_gen, "( OLcfgOvAt:1.3 NAME 'olcSpNoPresent' "
2678 "DESC 'Omit Present phase processing' "
2679 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2680 { "syncprov-reloadhint", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_USEHINT,
2681 sp_cf_gen, "( OLcfgOvAt:1.4 NAME 'olcSpReloadHint' "
2682 "DESC 'Observe Reload Hint in Request control' "
2683 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2684 { NULL, NULL, 0, 0, 0, ARG_IGNORED }
2687 static ConfigOCs spocs[] = {
2688 { "( OLcfgOvOc:1.1 "
2689 "NAME 'olcSyncProvConfig' "
2690 "DESC 'SyncRepl Provider configuration' "
2691 "SUP olcOverlayConfig "
2692 "MAY ( olcSpCheckpoint "
2693 "$ olcSpSessionlog "
2695 "$ olcSpReloadHint "
2697 Cft_Overlay, spcfg },
2702 sp_cf_gen(ConfigArgs *c)
2704 slap_overinst *on = (slap_overinst *)c->bi;
2705 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2708 if ( c->op == SLAP_CONFIG_EMIT ) {
2709 switch ( c->type ) {
2711 if ( si->si_chkops || si->si_chktime ) {
2713 /* we assume si_chktime is a multiple of 60
2714 * because the parsed value was originally
2715 * multiplied by 60 */
2716 bv.bv_len = snprintf( c->cr_msg, sizeof( c->cr_msg ),
2717 "%d %d", si->si_chkops, si->si_chktime/60 );
2718 if ( bv.bv_len >= sizeof( c->cr_msg ) ) {
2721 bv.bv_val = c->cr_msg;
2722 value_add_one( &c->rvalue_vals, &bv );
2729 if ( si->si_logs ) {
2730 c->value_int = si->si_logs->sl_size;
2736 if ( si->si_nopres ) {
2743 if ( si->si_usehint ) {
2751 } else if ( c->op == LDAP_MOD_DELETE ) {
2752 switch ( c->type ) {
2759 si->si_logs->sl_size = 0;
2761 rc = LDAP_NO_SUCH_ATTRIBUTE;
2764 if ( si->si_nopres )
2767 rc = LDAP_NO_SUCH_ATTRIBUTE;
2770 if ( si->si_usehint )
2773 rc = LDAP_NO_SUCH_ATTRIBUTE;
2778 switch ( c->type ) {
2780 if ( lutil_atoi( &si->si_chkops, c->argv[1] ) != 0 ) {
2781 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint ops # \"%s\"",
2782 c->argv[0], c->argv[1] );
2783 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2784 "%s: %s\n", c->log, c->cr_msg, 0 );
2785 return ARG_BAD_CONF;
2787 if ( si->si_chkops <= 0 ) {
2788 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint ops # \"%d\"",
2789 c->argv[0], si->si_chkops );
2790 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2791 "%s: %s\n", c->log, c->cr_msg, 0 );
2792 return ARG_BAD_CONF;
2794 if ( lutil_atoi( &si->si_chktime, c->argv[2] ) != 0 ) {
2795 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint time \"%s\"",
2796 c->argv[0], c->argv[1] );
2797 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2798 "%s: %s\n", c->log, c->cr_msg, 0 );
2799 return ARG_BAD_CONF;
2801 if ( si->si_chktime <= 0 ) {
2802 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint time \"%d\"",
2803 c->argv[0], si->si_chkops );
2804 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2805 "%s: %s\n", c->log, c->cr_msg, 0 );
2806 return ARG_BAD_CONF;
2808 si->si_chktime *= 60;
2812 int size = c->value_int;
2815 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s size %d is negative",
2817 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2818 "%s: %s\n", c->log, c->cr_msg, 0 );
2819 return ARG_BAD_CONF;
2823 sl = ch_malloc( sizeof( sessionlog ) + LDAP_PVT_CSNSTR_BUFSIZE );
2824 sl->sl_mincsn.bv_val = (char *)(sl+1);
2825 sl->sl_mincsn.bv_len = 0;
2827 sl->sl_head = sl->sl_tail = NULL;
2828 ldap_pvt_thread_mutex_init( &sl->sl_mutex );
2835 si->si_nopres = c->value_int;
2838 si->si_usehint = c->value_int;
2844 /* ITS#3456 we cannot run this search on the main thread, must use a
2845 * child thread in order to insure we have a big enough stack.
2852 syncprov_findcsn( ptr, FIND_MAXCSN );
2856 /* Read any existing contextCSN from the underlying db.
2857 * Then search for any entries newer than that. If no value exists,
2858 * just generate it. Cache whatever result.
2866 slap_overinst *on = (slap_overinst *) be->bd_info;
2867 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2869 Connection conn = { 0 };
2870 OperationBuffer opbuf;
2875 void *thrctx = NULL;
2877 if ( !SLAP_LASTMOD( be )) {
2878 Debug( LDAP_DEBUG_ANY,
2879 "syncprov_db_open: invalid config, lastmod must be enabled\n", 0, 0, 0 );
2883 if ( slapMode & SLAP_TOOL_MODE ) {
2887 rc = overlay_register_control( be, LDAP_CONTROL_SYNC );
2892 thrctx = ldap_pvt_thread_pool_context();
2893 connection_fake_init( &conn, &opbuf, thrctx );
2896 op->o_dn = be->be_rootdn;
2897 op->o_ndn = be->be_rootndn;
2899 if ( SLAP_SYNC_SUBENTRY( be )) {
2900 build_new_dn( &si->si_contextdn, be->be_nsuffix,
2901 (struct berval *)&slap_ldapsync_cn_bv, NULL );
2903 si->si_contextdn = be->be_nsuffix[0];
2905 rc = overlay_entry_get_ov( op, &si->si_contextdn, NULL,
2906 slap_schema.si_ad_contextCSN, 0, &e, on );
2909 ldap_pvt_thread_t tid;
2911 a = attr_find( e->e_attrs, slap_schema.si_ad_contextCSN );
2913 ber_bvarray_dup_x( &si->si_ctxcsn, a->a_vals, NULL );
2914 si->si_numcsns = a->a_numvals;
2915 si->si_sids = slap_parse_csn_sids( si->si_ctxcsn, a->a_numvals, NULL );
2917 overlay_entry_release_ov( op, e, 0, on );
2918 if ( si->si_ctxcsn && !SLAP_DBCLEAN( be )) {
2919 op->o_req_dn = be->be_suffix[0];
2920 op->o_req_ndn = be->be_nsuffix[0];
2921 op->ors_scope = LDAP_SCOPE_SUBTREE;
2922 ldap_pvt_thread_create( &tid, 0, syncprov_db_otask, op );
2923 ldap_pvt_thread_join( tid, NULL );
2927 /* Didn't find a contextCSN, should we generate one? */
2928 if ( !si->si_ctxcsn ) {
2929 char csnbuf[ LDAP_PVT_CSNSTR_BUFSIZE ];
2932 if ( SLAP_SYNC_SHADOW( op->o_bd )) {
2933 /* If we're also a consumer, then don't generate anything.
2934 * Wait for our provider to send it to us, or for a local
2935 * modify if we have multimaster.
2939 csn.bv_val = csnbuf;
2940 csn.bv_len = sizeof( csnbuf );
2941 slap_get_csn( op, &csn, 0 );
2942 value_add_one( &si->si_ctxcsn, &csn );
2944 si->si_sids = ch_malloc( sizeof(int) );
2945 si->si_sids[0] = slap_serverID;
2947 /* make sure we do a checkpoint on close */
2952 op->o_bd->bd_info = (BackendInfo *)on;
2956 /* Write the current contextCSN into the underlying db.
2964 slap_overinst *on = (slap_overinst *) be->bd_info;
2965 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2967 if ( slapMode & SLAP_TOOL_MODE ) {
2970 if ( si->si_numops ) {
2971 Connection conn = {0};
2972 OperationBuffer opbuf;
2974 SlapReply rs = {REP_RESULT};
2977 thrctx = ldap_pvt_thread_pool_context();
2978 connection_fake_init( &conn, &opbuf, thrctx );
2981 op->o_dn = be->be_rootdn;
2982 op->o_ndn = be->be_rootndn;
2983 syncprov_checkpoint( op, &rs, on );
2995 slap_overinst *on = (slap_overinst *)be->bd_info;
2996 syncprov_info_t *si;
2998 if ( SLAP_ISGLOBALOVERLAY( be ) ) {
2999 Debug( LDAP_DEBUG_ANY,
3000 "syncprov must be instantiated within a database.\n",
3005 si = ch_calloc(1, sizeof(syncprov_info_t));
3006 on->on_bi.bi_private = si;
3007 ldap_pvt_thread_rdwr_init( &si->si_csn_rwlock );
3008 ldap_pvt_thread_mutex_init( &si->si_ops_mutex );
3009 ldap_pvt_thread_mutex_init( &si->si_mods_mutex );
3010 ldap_pvt_thread_mutex_init( &si->si_resp_mutex );
3012 csn_anlist[0].an_desc = slap_schema.si_ad_entryCSN;
3013 csn_anlist[0].an_name = slap_schema.si_ad_entryCSN->ad_cname;
3014 csn_anlist[1].an_desc = slap_schema.si_ad_entryUUID;
3015 csn_anlist[1].an_name = slap_schema.si_ad_entryUUID->ad_cname;
3017 uuid_anlist[0].an_desc = slap_schema.si_ad_entryUUID;
3018 uuid_anlist[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
3024 syncprov_db_destroy(
3029 slap_overinst *on = (slap_overinst *)be->bd_info;
3030 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3033 if ( si->si_logs ) {
3034 slog_entry *se = si->si_logs->sl_head;
3037 slog_entry *se_next = se->se_next;
3042 ch_free( si->si_logs );
3044 if ( si->si_ctxcsn )
3045 ber_bvarray_free( si->si_ctxcsn );
3047 ch_free( si->si_sids );
3048 ldap_pvt_thread_mutex_destroy( &si->si_resp_mutex );
3049 ldap_pvt_thread_mutex_destroy( &si->si_mods_mutex );
3050 ldap_pvt_thread_mutex_destroy( &si->si_ops_mutex );
3051 ldap_pvt_thread_rdwr_destroy( &si->si_csn_rwlock );
3058 static int syncprov_parseCtrl (
3064 BerElementBuffer berbuf;
3065 BerElement *ber = (BerElement *)&berbuf;
3068 struct berval cookie = BER_BVNULL;
3072 if ( op->o_sync != SLAP_CONTROL_NONE ) {
3073 rs->sr_text = "Sync control specified multiple times";
3074 return LDAP_PROTOCOL_ERROR;
3077 if ( op->o_pagedresults != SLAP_CONTROL_NONE ) {
3078 rs->sr_text = "Sync control specified with pagedResults control";
3079 return LDAP_PROTOCOL_ERROR;
3082 if ( BER_BVISNULL( &ctrl->ldctl_value ) ) {
3083 rs->sr_text = "Sync control value is absent";
3084 return LDAP_PROTOCOL_ERROR;
3087 if ( BER_BVISEMPTY( &ctrl->ldctl_value ) ) {
3088 rs->sr_text = "Sync control value is empty";
3089 return LDAP_PROTOCOL_ERROR;
3092 /* Parse the control value
3093 * syncRequestValue ::= SEQUENCE {
3098 * refreshAndPersist (3)
3100 * cookie syncCookie OPTIONAL
3104 ber_init2( ber, &ctrl->ldctl_value, 0 );
3106 if ( (tag = ber_scanf( ber, "{i" /*}*/, &mode )) == LBER_ERROR ) {
3107 rs->sr_text = "Sync control : mode decoding error";
3108 return LDAP_PROTOCOL_ERROR;
3112 case LDAP_SYNC_REFRESH_ONLY:
3113 mode = SLAP_SYNC_REFRESH;
3115 case LDAP_SYNC_REFRESH_AND_PERSIST:
3116 mode = SLAP_SYNC_REFRESH_AND_PERSIST;
3119 rs->sr_text = "Sync control : unknown update mode";
3120 return LDAP_PROTOCOL_ERROR;
3123 tag = ber_peek_tag( ber, &len );
3125 if ( tag == LDAP_TAG_SYNC_COOKIE ) {
3126 if (( ber_scanf( ber, /*{*/ "m", &cookie )) == LBER_ERROR ) {
3127 rs->sr_text = "Sync control : cookie decoding error";
3128 return LDAP_PROTOCOL_ERROR;
3130 tag = ber_peek_tag( ber, &len );
3132 if ( tag == LDAP_TAG_RELOAD_HINT ) {
3133 if (( ber_scanf( ber, /*{*/ "b", &rhint )) == LBER_ERROR ) {
3134 rs->sr_text = "Sync control : rhint decoding error";
3135 return LDAP_PROTOCOL_ERROR;
3138 if (( ber_scanf( ber, /*{*/ "}")) == LBER_ERROR ) {
3139 rs->sr_text = "Sync control : decoding error";
3140 return LDAP_PROTOCOL_ERROR;
3142 sr = op->o_tmpcalloc( 1, sizeof(struct sync_control), op->o_tmpmemctx );
3143 sr->sr_rhint = rhint;
3144 if (!BER_BVISNULL(&cookie)) {
3145 ber_dupbv_x( &sr->sr_state.octet_str, &cookie, op->o_tmpmemctx );
3146 /* If parse fails, pretend no cookie was sent */
3147 if ( slap_parse_sync_cookie( &sr->sr_state, op->o_tmpmemctx ) ||
3148 sr->sr_state.rid == -1 ) {
3149 if ( sr->sr_state.ctxcsn ) {
3150 ber_bvarray_free_x( sr->sr_state.ctxcsn, op->o_tmpmemctx );
3151 sr->sr_state.ctxcsn = NULL;
3153 sr->sr_state.numcsns = 0;
3157 op->o_controls[slap_cids.sc_LDAPsync] = sr;
3159 op->o_sync = ctrl->ldctl_iscritical
3160 ? SLAP_CONTROL_CRITICAL
3161 : SLAP_CONTROL_NONCRITICAL;
3163 op->o_sync_mode |= mode; /* o_sync_mode shares o_sync */
3165 return LDAP_SUCCESS;
3168 /* This overlay is set up for dynamic loading via moduleload. For static
3169 * configuration, you'll need to arrange for the slap_overinst to be
3170 * initialized and registered by some other function inside slapd.
3173 static slap_overinst syncprov;
3176 syncprov_initialize()
3180 rc = register_supported_control( LDAP_CONTROL_SYNC,
3181 SLAP_CTRL_SEARCH, NULL,
3182 syncprov_parseCtrl, &slap_cids.sc_LDAPsync );
3183 if ( rc != LDAP_SUCCESS ) {
3184 Debug( LDAP_DEBUG_ANY,
3185 "syncprov_init: Failed to register control %d\n", rc, 0, 0 );
3189 syncprov.on_bi.bi_type = "syncprov";
3190 syncprov.on_bi.bi_db_init = syncprov_db_init;
3191 syncprov.on_bi.bi_db_destroy = syncprov_db_destroy;
3192 syncprov.on_bi.bi_db_open = syncprov_db_open;
3193 syncprov.on_bi.bi_db_close = syncprov_db_close;
3195 syncprov.on_bi.bi_op_abandon = syncprov_op_abandon;
3196 syncprov.on_bi.bi_op_cancel = syncprov_op_abandon;
3198 syncprov.on_bi.bi_op_add = syncprov_op_mod;
3199 syncprov.on_bi.bi_op_compare = syncprov_op_compare;
3200 syncprov.on_bi.bi_op_delete = syncprov_op_mod;
3201 syncprov.on_bi.bi_op_modify = syncprov_op_mod;
3202 syncprov.on_bi.bi_op_modrdn = syncprov_op_mod;
3203 syncprov.on_bi.bi_op_search = syncprov_op_search;
3204 syncprov.on_bi.bi_extended = syncprov_op_extended;
3205 syncprov.on_bi.bi_operational = syncprov_operational;
3207 syncprov.on_bi.bi_cf_ocs = spocs;
3209 generic_filter.f_desc = slap_schema.si_ad_objectClass;
3211 rc = config_register_schema( spcfg, spocs );
3212 if ( rc ) return rc;
3214 return overlay_register( &syncprov );
3217 #if SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC
3219 init_module( int argc, char *argv[] )
3221 return syncprov_initialize();
3223 #endif /* SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC */
3225 #endif /* defined(SLAPD_OVER_SYNCPROV) */