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? */
859 for ( i=0; rs.sr_ctrls[i]; i++ ) {
860 if ( rs.sr_ctrls[i] == ctrls[0] ) {
861 op->o_tmpfree( ctrls[0]->ldctl_value.bv_val, op->o_tmpmemctx );
862 ctrls[0]->ldctl_value.bv_val = NULL;
866 slap_free_ctrls( op, rs.sr_ctrls );
874 syncprov_qstart( syncops *so );
876 /* Play back queued responses */
878 syncprov_qplay( Operation *op, syncops *so )
880 slap_overinst *on = LDAP_SLIST_FIRST(&so->s_op->o_extra)->oe_key;
889 ldap_pvt_thread_mutex_lock( &so->s_mutex );
892 so->s_res = sr->s_next;
894 so->s_restail = NULL;
895 /* Exit loop with mutex held */
896 if ( !sr || so->s_op->o_abandon )
898 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
900 if ( sr->s_mode == LDAP_SYNC_NEW_COOKIE ) {
901 SlapReply rs = { REP_INTERMEDIATE };
903 rc = syncprov_sendinfo( op, &rs, LDAP_TAG_SYNC_NEW_COOKIE,
904 &sr->s_csn, 0, NULL, 0 );
907 opc.sndn = sr->s_ndn;
908 opc.suuid = sr->s_uuid;
909 opc.sctxcsn = sr->s_csn;
910 opc.sreference = sr->s_isreference;
913 if ( sr->s_mode != LDAP_SYNC_DELETE ) {
914 rc = overlay_entry_get_ov( op, &opc.sndn, NULL, NULL, 0, &e, on );
916 Debug( LDAP_DEBUG_SYNC, "syncprov_qplay: failed to get %s, "
917 "error (%d), ignoring...\n", opc.sndn.bv_val, rc, 0 );
923 rc = syncprov_sendresp( op, &opc, so, &e, sr->s_mode );
926 overlay_entry_release_ov( op, e, 0, on );
932 /* Exit loop with mutex held */
933 ldap_pvt_thread_mutex_lock( &so->s_mutex );
937 /* We now only send one change at a time, to prevent one
938 * psearch from hogging all the CPU. Resubmit this task if
939 * there are more responses queued and no errors occurred.
942 if ( rc == 0 && so->s_res ) {
943 syncprov_qstart( so );
945 so->s_flags ^= PS_TASK_QUEUED;
948 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
952 /* task for playing back queued responses */
954 syncprov_qtask( void *ctx, void *arg )
957 OperationBuffer opbuf;
964 op->o_hdr = &opbuf.ob_hdr;
965 op->o_controls = opbuf.ob_controls;
966 memset( op->o_controls, 0, sizeof(opbuf.ob_controls) );
968 *op->o_hdr = *so->s_op->o_hdr;
970 op->o_tmpmemctx = slap_sl_mem_create(SLAP_SLAB_SIZE, SLAP_SLAB_STACK, ctx, 1);
971 op->o_tmpmfuncs = &slap_sl_mfuncs;
972 op->o_threadctx = ctx;
974 /* syncprov_qplay expects a fake db */
975 be = *so->s_op->o_bd;
976 be.be_flags |= SLAP_DBFLAG_OVERLAY;
978 LDAP_SLIST_FIRST(&op->o_extra) = NULL;
979 op->o_callback = NULL;
981 rc = syncprov_qplay( op, so );
983 /* decrement use count... */
984 syncprov_free_syncop( so );
989 /* Start the task to play back queued psearch responses */
991 syncprov_qstart( syncops *so )
993 so->s_flags |= PS_TASK_QUEUED;
995 ldap_pvt_thread_pool_submit( &connection_pool,
996 syncprov_qtask, so );
999 /* Queue a persistent search response */
1001 syncprov_qresp( opcookie *opc, syncops *so, int mode )
1005 struct berval cookie = opc->sctxcsn;
1007 if ( mode == LDAP_SYNC_NEW_COOKIE ) {
1008 syncprov_info_t *si = opc->son->on_bi.bi_private;
1010 slap_compose_sync_cookie( NULL, &cookie, si->si_ctxcsn,
1011 so->s_rid, slap_serverID ? slap_serverID : -1);
1014 srsize = sizeof(syncres) + opc->suuid.bv_len + 1 +
1015 opc->sdn.bv_len + 1 + opc->sndn.bv_len + 1;
1016 if ( cookie.bv_len )
1017 srsize += cookie.bv_len + 1;
1018 sr = ch_malloc( srsize );
1020 sr->s_dn.bv_val = (char *)(sr + 1);
1021 sr->s_dn.bv_len = opc->sdn.bv_len;
1023 sr->s_isreference = opc->sreference;
1024 sr->s_ndn.bv_val = lutil_strcopy( sr->s_dn.bv_val,
1025 opc->sdn.bv_val ) + 1;
1026 sr->s_ndn.bv_len = opc->sndn.bv_len;
1027 sr->s_uuid.bv_val = lutil_strcopy( sr->s_ndn.bv_val,
1028 opc->sndn.bv_val ) + 1;
1029 sr->s_uuid.bv_len = opc->suuid.bv_len;
1030 AC_MEMCPY( sr->s_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1031 if ( cookie.bv_len ) {
1032 sr->s_csn.bv_val = sr->s_uuid.bv_val + sr->s_uuid.bv_len + 1;
1033 strcpy( sr->s_csn.bv_val, cookie.bv_val );
1035 sr->s_csn.bv_val = NULL;
1037 sr->s_csn.bv_len = cookie.bv_len;
1039 if ( mode == LDAP_SYNC_NEW_COOKIE && cookie.bv_val ) {
1040 ch_free( cookie.bv_val );
1043 ldap_pvt_thread_mutex_lock( &so->s_mutex );
1047 so->s_restail->s_next = sr;
1051 /* If the base of the psearch was modified, check it next time round */
1052 if ( so->s_flags & PS_WROTE_BASE ) {
1053 so->s_flags ^= PS_WROTE_BASE;
1054 so->s_flags |= PS_FIND_BASE;
1056 if (( so->s_flags & (PS_IS_DETACHED|PS_TASK_QUEUED)) == PS_IS_DETACHED ) {
1057 syncprov_qstart( so );
1059 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
1060 return LDAP_SUCCESS;
1064 syncprov_drop_psearch( syncops *so, int lock )
1066 if ( so->s_flags & PS_IS_DETACHED ) {
1068 ldap_pvt_thread_mutex_lock( &so->s_op->o_conn->c_mutex );
1069 so->s_op->o_conn->c_n_ops_executing--;
1070 so->s_op->o_conn->c_n_ops_completed++;
1071 LDAP_STAILQ_REMOVE( &so->s_op->o_conn->c_ops, so->s_op, Operation,
1074 ldap_pvt_thread_mutex_unlock( &so->s_op->o_conn->c_mutex );
1076 syncprov_free_syncop( so );
1082 syncprov_ab_cleanup( Operation *op, SlapReply *rs )
1084 slap_callback *sc = op->o_callback;
1085 op->o_callback = sc->sc_next;
1086 syncprov_drop_psearch( op->o_callback->sc_private, 0 );
1087 op->o_tmpfree( sc, op->o_tmpmemctx );
1092 syncprov_op_abandon( Operation *op, SlapReply *rs )
1094 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1095 syncprov_info_t *si = on->on_bi.bi_private;
1096 syncops *so, *soprev;
1098 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1099 for ( so=si->si_ops, soprev = (syncops *)&si->si_ops; so;
1100 soprev=so, so=so->s_next ) {
1101 if ( so->s_op->o_connid == op->o_connid &&
1102 so->s_op->o_msgid == op->orn_msgid ) {
1103 so->s_op->o_abandon = 1;
1104 soprev->s_next = so->s_next;
1108 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1110 /* Is this really a Cancel exop? */
1111 if ( op->o_tag != LDAP_REQ_ABANDON ) {
1112 so->s_op->o_cancel = SLAP_CANCEL_ACK;
1113 rs->sr_err = LDAP_CANCELLED;
1114 send_ldap_result( so->s_op, rs );
1115 if ( so->s_flags & PS_IS_DETACHED ) {
1117 cb = op->o_tmpcalloc( 1, sizeof(slap_callback), op->o_tmpmemctx );
1118 cb->sc_cleanup = syncprov_ab_cleanup;
1119 cb->sc_next = op->o_callback;
1120 cb->sc_private = so;
1121 return SLAP_CB_CONTINUE;
1124 syncprov_drop_psearch( so, 0 );
1126 return SLAP_CB_CONTINUE;
1129 /* Find which persistent searches are affected by this operation */
1131 syncprov_matchops( Operation *op, opcookie *opc, int saveit )
1133 slap_overinst *on = opc->son;
1134 syncprov_info_t *si = on->on_bi.bi_private;
1137 syncops *ss, *sprev, *snext;
1141 struct berval newdn;
1143 BackendDB *b0 = op->o_bd, db;
1145 fc.fdn = &op->o_req_ndn;
1146 /* compute new DN */
1147 if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1149 if ( op->orr_nnewSup ) pdn = *op->orr_nnewSup;
1150 else dnParent( fc.fdn, &pdn );
1151 build_new_dn( &newdn, &pdn, &op->orr_nnewrdn, op->o_tmpmemctx );
1155 if ( op->o_tag != LDAP_REQ_ADD ) {
1156 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1160 rc = overlay_entry_get_ov( op, fc.fdn, NULL, NULL, 0, &e, on );
1161 /* If we're sending responses now, make a copy and unlock the DB */
1162 if ( e && !saveit ) {
1163 Entry *e2 = entry_dup( e );
1164 overlay_entry_release_ov( op, e, 0, on );
1175 if ( saveit || op->o_tag == LDAP_REQ_ADD ) {
1176 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1177 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1178 opc->sreference = is_entry_referral( e );
1179 a = attr_find( e->e_attrs, slap_schema.si_ad_entryUUID );
1181 ber_dupbv_x( &opc->suuid, &a->a_nvals[0], op->o_tmpmemctx );
1182 } else if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1183 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1184 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1185 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1186 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1189 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1190 for (ss = si->si_ops, sprev = (syncops *)&si->si_ops; ss;
1191 sprev = ss, ss=snext)
1199 if ( ss->s_op->o_abandon )
1202 /* First time thru, check for possible skips */
1203 if ( saveit || op->o_tag == LDAP_REQ_ADD ) {
1205 /* Don't send ops back to the originator */
1206 if ( opc->osid > 0 && opc->osid == ss->s_sid ) {
1207 Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping original sid %03x\n",
1212 /* Don't send ops back to the messenger */
1213 if ( opc->rsid > 0 && opc->rsid == ss->s_sid ) {
1214 Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping relayed sid %03x\n",
1225 /* If the base of the search is missing, signal a refresh */
1226 rc = syncprov_findbase( op, &fc );
1227 if ( rc != LDAP_SUCCESS ) {
1228 SlapReply rs = {REP_RESULT};
1229 send_ldap_error( ss->s_op, &rs, LDAP_SYNC_REFRESH_REQUIRED,
1230 "search base has changed" );
1231 sprev->s_next = snext;
1232 syncprov_drop_psearch( ss, 1 );
1238 /* If we're sending results now, look for this op in old matches */
1242 /* Did we modify the search base? */
1243 if ( dn_match( &op->o_req_ndn, &ss->s_base )) {
1244 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1245 ss->s_flags |= PS_WROTE_BASE;
1246 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1249 for ( sm=opc->smatches, old=(syncmatches *)&opc->smatches; sm;
1250 old=sm, sm=sm->sm_next ) {
1251 if ( sm->sm_op == ss ) {
1253 old->sm_next = sm->sm_next;
1254 op->o_tmpfree( sm, op->o_tmpmemctx );
1263 oh.oh_conn = ss->s_op->o_conn;
1264 oh.oh_connid = ss->s_op->o_connid;
1265 op2.o_bd = op->o_bd->bd_self;
1267 op2.o_extra = op->o_extra;
1268 op2.o_callback = NULL;
1269 rc = test_filter( &op2, e, ss->s_op->ors_filter );
1272 Debug( LDAP_DEBUG_TRACE, "syncprov_matchops: sid %03x fscope %d rc %d\n",
1273 ss->s_sid, fc.fscope, rc );
1275 /* check if current o_req_dn is in scope and matches filter */
1276 if ( fc.fscope && rc == LDAP_COMPARE_TRUE ) {
1278 sm = op->o_tmpalloc( sizeof(syncmatches), op->o_tmpmemctx );
1279 sm->sm_next = opc->smatches;
1281 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1283 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1286 /* if found send UPDATE else send ADD */
1287 syncprov_qresp( opc, ss,
1288 found ? LDAP_SYNC_MODIFY : LDAP_SYNC_ADD );
1290 } else if ( !saveit && found ) {
1292 syncprov_qresp( opc, ss, LDAP_SYNC_DELETE );
1293 } else if ( !saveit ) {
1294 syncprov_qresp( opc, ss, LDAP_SYNC_NEW_COOKIE );
1296 if ( !saveit && found ) {
1297 /* Decrement s_inuse, was incremented when called
1298 * with saveit == TRUE
1300 syncprov_free_syncop( ss );
1303 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1305 if ( op->o_tag != LDAP_REQ_ADD && e ) {
1306 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1309 overlay_entry_release_ov( op, e, 0, on );
1313 op->o_tmpfree( fc.fdn->bv_val, op->o_tmpmemctx );
1319 syncprov_op_cleanup( Operation *op, SlapReply *rs )
1321 slap_callback *cb = op->o_callback;
1322 opcookie *opc = cb->sc_private;
1323 slap_overinst *on = opc->son;
1324 syncprov_info_t *si = on->on_bi.bi_private;
1325 syncmatches *sm, *snext;
1326 modtarget *mt, mtdummy;
1328 for (sm = opc->smatches; sm; sm=snext) {
1329 snext = sm->sm_next;
1330 syncprov_free_syncop( sm->sm_op );
1331 op->o_tmpfree( sm, op->o_tmpmemctx );
1334 /* Remove op from lock table */
1337 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1338 mt->mt_mods = mt->mt_mods->mi_next;
1339 /* If there are more, promote the next one */
1340 if ( mt->mt_mods ) {
1341 mt->mt_op = mt->mt_mods->mi_op;
1342 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1344 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1345 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1346 avl_delete( &si->si_mods, mt, sp_avl_cmp );
1347 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1348 ldap_pvt_thread_mutex_destroy( &mt->mt_mutex );
1352 if ( !BER_BVISNULL( &opc->suuid ))
1353 op->o_tmpfree( opc->suuid.bv_val, op->o_tmpmemctx );
1354 if ( !BER_BVISNULL( &opc->sndn ))
1355 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1356 if ( !BER_BVISNULL( &opc->sdn ))
1357 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1358 op->o_callback = cb->sc_next;
1359 op->o_tmpfree(cb, op->o_tmpmemctx);
1365 syncprov_checkpoint( Operation *op, SlapReply *rs, slap_overinst *on )
1367 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
1370 SlapReply rsm = { 0 };
1371 slap_callback cb = {0};
1373 struct berval ctxdn;
1376 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1379 for ( i=0; i<si->si_numcsns; i++ ) {
1380 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1383 mod.sml_numvals = si->si_numcsns;
1384 mod.sml_values = si->si_ctxcsn;
1385 mod.sml_nvalues = NULL;
1386 mod.sml_desc = slap_schema.si_ad_contextCSN;
1387 mod.sml_op = LDAP_MOD_REPLACE;
1388 mod.sml_flags = SLAP_MOD_INTERNAL;
1389 mod.sml_next = NULL;
1391 cb.sc_response = slap_null_cb;
1393 opm.o_tag = LDAP_REQ_MODIFY;
1394 opm.o_callback = &cb;
1395 opm.orm_modlist = &mod;
1396 opm.orm_no_opattrs = 1;
1397 if ( SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1398 be = *on->on_info->oi_origdb;
1400 ctxdn = be.be_nsuffix[0];
1402 ctxdn = si->si_contextdn;
1404 opm.o_req_dn = ctxdn;
1405 opm.o_req_ndn = ctxdn;
1406 opm.o_bd->bd_info = on->on_info->oi_orig;
1407 opm.o_managedsait = SLAP_CONTROL_NONCRITICAL;
1408 opm.o_no_schema_check = 1;
1409 opm.o_bd->be_modify( &opm, &rsm );
1411 if ( rsm.sr_err == LDAP_NO_SUCH_OBJECT &&
1412 SLAP_SYNC_SUBENTRY( opm.o_bd )) {
1414 char txtbuf[SLAP_TEXT_BUFLEN];
1415 size_t textlen = sizeof txtbuf;
1416 Entry *e = slap_create_context_csn_entry( opm.o_bd, NULL );
1417 slap_mods2entry( &mod, &e, 0, 1, &text, txtbuf, textlen);
1419 opm.o_bd->be_add( &opm, &rsm );
1420 if ( e == opm.ora_e )
1421 be_entry_release_w( &opm, opm.ora_e );
1424 if ( mod.sml_next != NULL ) {
1425 slap_mods_free( mod.sml_next, 1 );
1428 for ( i=0; i<si->si_numcsns; i++ ) {
1429 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1435 syncprov_add_slog( Operation *op )
1437 opcookie *opc = op->o_callback->sc_private;
1438 slap_overinst *on = opc->son;
1439 syncprov_info_t *si = on->on_bi.bi_private;
1445 /* Allocate a record. UUIDs are not NUL-terminated. */
1446 se = ch_malloc( sizeof( slog_entry ) + opc->suuid.bv_len +
1447 op->o_csn.bv_len + 1 );
1449 se->se_tag = op->o_tag;
1451 se->se_uuid.bv_val = (char *)(&se[1]);
1452 AC_MEMCPY( se->se_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1453 se->se_uuid.bv_len = opc->suuid.bv_len;
1455 se->se_csn.bv_val = se->se_uuid.bv_val + opc->suuid.bv_len;
1456 AC_MEMCPY( se->se_csn.bv_val, op->o_csn.bv_val, op->o_csn.bv_len );
1457 se->se_csn.bv_val[op->o_csn.bv_len] = '\0';
1458 se->se_csn.bv_len = op->o_csn.bv_len;
1459 se->se_sid = slap_parse_csn_sid( &se->se_csn );
1461 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1462 if ( sl->sl_head ) {
1463 sl->sl_tail->se_next = se;
1469 while ( sl->sl_num > sl->sl_size ) {
1471 sl->sl_head = se->se_next;
1472 strcpy( sl->sl_mincsn.bv_val, se->se_csn.bv_val );
1473 sl->sl_mincsn.bv_len = se->se_csn.bv_len;
1477 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1481 /* Just set a flag if we found the matching entry */
1483 playlog_cb( Operation *op, SlapReply *rs )
1485 if ( rs->sr_type == REP_SEARCH ) {
1486 op->o_callback->sc_private = (void *)1;
1491 /* enter with sl->sl_mutex locked, release before returning */
1493 syncprov_playlog( Operation *op, SlapReply *rs, sessionlog *sl,
1494 sync_control *srs, BerVarray ctxcsn, int numcsns, int *sids )
1496 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1498 int i, j, ndel, num, nmods, mmods;
1499 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
1501 struct berval delcsn[2];
1503 if ( !sl->sl_num ) {
1504 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1512 uuids = op->o_tmpalloc( (num+1) * sizeof( struct berval ) +
1513 num * UUID_LEN, op->o_tmpmemctx );
1514 uuids[0].bv_val = (char *)(uuids + num + 1);
1516 delcsn[0].bv_len = 0;
1517 delcsn[0].bv_val = cbuf;
1518 BER_BVZERO(&delcsn[1]);
1520 /* Make a copy of the relevant UUIDs. Put the Deletes up front
1521 * and everything else at the end. Do this first so we can
1522 * unlock the list mutex.
1524 Debug( LDAP_DEBUG_SYNC, "srs csn %s\n",
1525 srs->sr_state.ctxcsn[0].bv_val, 0, 0 );
1526 for ( se=sl->sl_head; se; se=se->se_next ) {
1528 Debug( LDAP_DEBUG_SYNC, "log csn %s\n", se->se_csn.bv_val, 0, 0 );
1530 for ( k=0; k<srs->sr_state.numcsns; k++ ) {
1531 if ( se->se_sid == srs->sr_state.sids[k] ) {
1532 ndel = ber_bvcmp( &se->se_csn, &srs->sr_state.ctxcsn[k] );
1537 Debug( LDAP_DEBUG_SYNC, "cmp %d, too old\n", ndel, 0, 0 );
1541 for ( k=0; k<numcsns; k++ ) {
1542 if ( se->se_sid == sids[k] ) {
1543 ndel = ber_bvcmp( &se->se_csn, &ctxcsn[k] );
1548 Debug( LDAP_DEBUG_SYNC, "cmp %d, too new\n", ndel, 0, 0 );
1551 if ( se->se_tag == LDAP_REQ_DELETE ) {
1554 AC_MEMCPY( cbuf, se->se_csn.bv_val, se->se_csn.bv_len );
1555 delcsn[0].bv_len = se->se_csn.bv_len;
1556 delcsn[0].bv_val[delcsn[0].bv_len] = '\0';
1561 uuids[j].bv_val = uuids[0].bv_val + (j * UUID_LEN);
1562 AC_MEMCPY(uuids[j].bv_val, se->se_uuid.bv_val, UUID_LEN);
1563 uuids[j].bv_len = UUID_LEN;
1565 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1569 /* Zero out unused slots */
1570 for ( i=ndel; i < num - nmods; i++ )
1571 uuids[i].bv_len = 0;
1573 /* Mods must be validated to see if they belong in this delete set.
1577 /* Strip any duplicates */
1578 for ( i=0; i<nmods; i++ ) {
1579 for ( j=0; j<ndel; j++ ) {
1580 if ( bvmatch( &uuids[j], &uuids[num - 1 - i] )) {
1581 uuids[num - 1 - i].bv_len = 0;
1586 if ( uuids[num - 1 - i].bv_len == 0 ) continue;
1587 for ( j=0; j<i; j++ ) {
1588 if ( bvmatch( &uuids[num - 1 - j], &uuids[num - 1 - i] )) {
1589 uuids[num - 1 - i].bv_len = 0;
1598 SlapReply frs = { REP_RESULT };
1601 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
1602 slap_callback cb = {0};
1606 fop.o_sync_mode = 0;
1607 fop.o_callback = &cb;
1608 fop.ors_limit = NULL;
1609 fop.ors_tlimit = SLAP_NO_LIMIT;
1610 fop.ors_attrs = slap_anlist_all_attributes;
1611 fop.ors_attrsonly = 0;
1612 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
1614 af.f_choice = LDAP_FILTER_AND;
1617 mf.f_choice = LDAP_FILTER_EQUALITY;
1619 mf.f_av_desc = slap_schema.si_ad_entryUUID;
1620 mf.f_next = fop.ors_filter;
1622 fop.ors_filter = ⁡
1624 cb.sc_response = playlog_cb;
1625 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
1627 for ( i=ndel; i<num; i++ ) {
1628 if ( uuids[i].bv_len == 0 ) continue;
1630 mf.f_av_value = uuids[i];
1631 cb.sc_private = NULL;
1633 frs.sr_nentries = 0;
1634 rc = fop.o_bd->be_search( &fop, &frs );
1636 /* If entry was not found, add to delete list */
1637 if ( !cb.sc_private ) {
1638 uuids[ndel++] = uuids[i];
1641 fop.o_bd->bd_info = (BackendInfo *)on;
1644 struct berval cookie;
1646 if ( delcsn[0].bv_len ) {
1647 slap_compose_sync_cookie( op, &cookie, delcsn, srs->sr_state.rid,
1648 slap_serverID ? slap_serverID : -1 );
1650 Debug( LDAP_DEBUG_SYNC, "syncprov_playlog: cookie=%s\n", cookie.bv_val, 0, 0 );
1653 uuids[ndel].bv_val = NULL;
1654 syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET,
1655 delcsn[0].bv_len ? &cookie : NULL, 0, uuids, 1 );
1656 if ( delcsn[0].bv_len ) {
1657 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
1660 op->o_tmpfree( uuids, op->o_tmpmemctx );
1664 syncprov_op_response( Operation *op, SlapReply *rs )
1666 opcookie *opc = op->o_callback->sc_private;
1667 slap_overinst *on = opc->son;
1668 syncprov_info_t *si = on->on_bi.bi_private;
1671 if ( rs->sr_err == LDAP_SUCCESS )
1673 struct berval maxcsn;
1674 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
1675 int do_check = 0, have_psearches, foundit, csn_changed = 0;
1677 ldap_pvt_thread_mutex_lock( &si->si_resp_mutex );
1679 /* Update our context CSN */
1681 maxcsn.bv_val = cbuf;
1682 maxcsn.bv_len = sizeof(cbuf);
1683 ldap_pvt_thread_rdwr_wlock( &si->si_csn_rwlock );
1685 if ( op->o_dont_replicate && op->o_tag == LDAP_REQ_MODIFY &&
1686 op->orm_modlist->sml_op == LDAP_MOD_REPLACE &&
1687 op->orm_modlist->sml_desc == slap_schema.si_ad_contextCSN ) {
1688 /* Catch contextCSN updates from syncrepl. We have to look at
1689 * all the attribute values, as there may be more than one csn
1690 * that changed, and only one can be passed in the csn queue.
1692 Modifications *mod = op->orm_modlist;
1695 for ( i=0; i<mod->sml_numvals; i++ ) {
1696 sid = slap_parse_csn_sid( &mod->sml_values[i] );
1698 for ( j=0; j<si->si_numcsns; j++ ) {
1699 if ( sid == si->si_sids[j] ) {
1700 if ( ber_bvcmp( &mod->sml_values[i], &si->si_ctxcsn[j] ) > 0 ) {
1701 ber_bvreplace( &si->si_ctxcsn[j], &mod->sml_values[i] );
1708 if ( j == si->si_numcsns ) {
1709 value_add_one( &si->si_ctxcsn, &mod->sml_values[i] );
1711 si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
1713 si->si_sids[j] = sid;
1717 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1719 if ( csn_changed ) {
1720 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1721 have_psearches = ( si->si_ops != NULL );
1722 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1724 if ( have_psearches ) {
1725 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1726 if ( sm->sm_op->s_op->o_abandon )
1728 syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_NEW_COOKIE );
1735 slap_get_commit_csn( op, &maxcsn, &foundit );
1736 if ( BER_BVISEMPTY( &maxcsn ) && SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1737 /* syncrepl queues the CSN values in the db where
1738 * it is configured , not where the changes are made.
1739 * So look for a value in the glue db if we didn't
1740 * find any in this db.
1742 BackendDB *be = op->o_bd;
1743 op->o_bd = select_backend( &be->be_nsuffix[0], 1);
1744 maxcsn.bv_val = cbuf;
1745 maxcsn.bv_len = sizeof(cbuf);
1746 slap_get_commit_csn( op, &maxcsn, &foundit );
1749 if ( !BER_BVISEMPTY( &maxcsn ) ) {
1752 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1753 assert( !syn->ssyn_validate( syn, &maxcsn ));
1755 sid = slap_parse_csn_sid( &maxcsn );
1756 for ( i=0; i<si->si_numcsns; i++ ) {
1757 if ( sid == si->si_sids[i] ) {
1758 if ( ber_bvcmp( &maxcsn, &si->si_ctxcsn[i] ) > 0 ) {
1759 ber_bvreplace( &si->si_ctxcsn[i], &maxcsn );
1765 /* It's a new SID for us */
1766 if ( i == si->si_numcsns ) {
1767 value_add_one( &si->si_ctxcsn, &maxcsn );
1770 si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
1772 si->si_sids[i] = sid;
1775 } else if ( !foundit ) {
1776 /* internal ops that aren't meant to be replicated */
1777 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1778 return SLAP_CB_CONTINUE;
1782 /* Don't do any processing for consumer contextCSN updates */
1783 if ( op->o_dont_replicate ) {
1784 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1789 if ( si->si_chkops || si->si_chktime ) {
1790 /* Never checkpoint adding the context entry,
1793 if ( op->o_tag != LDAP_REQ_ADD ||
1794 !dn_match( &op->o_req_ndn, &si->si_contextdn )) {
1795 if ( si->si_chkops && si->si_numops >= si->si_chkops ) {
1799 if ( si->si_chktime &&
1800 (op->o_time - si->si_chklast >= si->si_chktime )) {
1801 if ( si->si_chklast ) {
1803 si->si_chklast = op->o_time;
1810 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1813 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1814 syncprov_checkpoint( op, rs, on );
1815 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1818 /* only update consumer ctx if this is a newer csn */
1819 if ( csn_changed ) {
1820 opc->sctxcsn = maxcsn;
1823 /* Handle any persistent searches */
1824 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1825 have_psearches = ( si->si_ops != NULL );
1826 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1827 if ( have_psearches ) {
1830 case LDAP_REQ_MODIFY:
1831 case LDAP_REQ_MODRDN:
1832 case LDAP_REQ_EXTENDED:
1833 syncprov_matchops( op, opc, 0 );
1835 case LDAP_REQ_DELETE:
1836 /* for each match in opc->smatches:
1839 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1840 if ( sm->sm_op->s_op->o_abandon )
1842 syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_DELETE );
1848 /* Add any log records */
1849 if ( si->si_logs && op->o_tag != LDAP_REQ_ADD ) {
1850 syncprov_add_slog( op );
1852 leave: ldap_pvt_thread_mutex_unlock( &si->si_resp_mutex );
1854 return SLAP_CB_CONTINUE;
1857 /* We don't use a subentry to store the context CSN any more.
1858 * We expose the current context CSN as an operational attribute
1859 * of the suffix entry.
1862 syncprov_op_compare( Operation *op, SlapReply *rs )
1864 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1865 syncprov_info_t *si = on->on_bi.bi_private;
1866 int rc = SLAP_CB_CONTINUE;
1868 if ( dn_match( &op->o_req_ndn, &si->si_contextdn ) &&
1869 op->oq_compare.rs_ava->aa_desc == slap_schema.si_ad_contextCSN )
1874 e.e_name = si->si_contextdn;
1875 e.e_nname = si->si_contextdn;
1878 a.a_desc = slap_schema.si_ad_contextCSN;
1880 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1882 a.a_vals = si->si_ctxcsn;
1883 a.a_nvals = a.a_vals;
1884 a.a_numvals = si->si_numcsns;
1886 rs->sr_err = access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc,
1887 &op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL );
1888 if ( ! rs->sr_err ) {
1889 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1890 goto return_results;
1893 if ( get_assert( op ) &&
1894 ( test_filter( op, &e, get_assertion( op ) ) != LDAP_COMPARE_TRUE ) )
1896 rs->sr_err = LDAP_ASSERTION_FAILED;
1897 goto return_results;
1901 rs->sr_err = LDAP_COMPARE_FALSE;
1903 if ( attr_valfind( &a,
1904 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
1905 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
1906 &op->oq_compare.rs_ava->aa_value, NULL, op->o_tmpmemctx ) == 0 )
1908 rs->sr_err = LDAP_COMPARE_TRUE;
1913 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1915 send_ldap_result( op, rs );
1917 if( rs->sr_err == LDAP_COMPARE_FALSE || rs->sr_err == LDAP_COMPARE_TRUE ) {
1918 rs->sr_err = LDAP_SUCCESS;
1927 syncprov_op_mod( Operation *op, SlapReply *rs )
1929 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1930 syncprov_info_t *si = on->on_bi.bi_private;
1933 int have_psearches, cbsize;
1935 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1936 have_psearches = ( si->si_ops != NULL );
1937 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1939 cbsize = sizeof(slap_callback) + sizeof(opcookie) +
1940 (have_psearches ? sizeof(modinst) : 0 );
1942 cb = op->o_tmpcalloc(1, cbsize, op->o_tmpmemctx);
1943 opc = (opcookie *)(cb+1);
1945 cb->sc_response = syncprov_op_response;
1946 cb->sc_cleanup = syncprov_op_cleanup;
1947 cb->sc_private = opc;
1948 cb->sc_next = op->o_callback;
1949 op->o_callback = cb;
1953 if ( op->o_csn.bv_val ) {
1954 opc->osid = slap_parse_csn_sid( &op->o_csn );
1956 if ( op->o_controls ) {
1957 struct sync_cookie *scook =
1958 op->o_controls[slap_cids.sc_LDAPsync];
1960 opc->rsid = scook->sid;
1963 /* If there are active persistent searches, lock this operation.
1964 * See seqmod.c for the locking logic on its own.
1966 if ( have_psearches ) {
1967 modtarget *mt, mtdummy;
1970 mi = (modinst *)(opc+1);
1973 /* See if we're already modifying this entry... */
1975 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1976 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
1978 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1979 if ( mt->mt_mods == NULL ) {
1980 /* Cannot reuse this mt, as another thread is about
1981 * to release it in syncprov_op_cleanup.
1983 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1988 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1989 mt->mt_tail->mi_next = mi;
1991 /* wait for this op to get to head of list */
1992 while ( mt->mt_mods != mi ) {
1993 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1994 /* FIXME: if dynamic config can delete overlays or
1995 * databases we'll have to check for cleanup here.
1996 * Currently it's not an issue because there are
1997 * no dynamic config deletes...
1999 if ( slapd_shutdown )
2000 return SLAPD_ABANDON;
2002 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
2003 ldap_pvt_thread_yield();
2004 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
2006 /* clean up if the caller is giving up */
2007 if ( op->o_abandon ) {
2009 for ( m2 = mt->mt_mods; m2->mi_next != mi;
2011 m2->mi_next = mi->mi_next;
2012 if ( mt->mt_tail == mi ) mt->mt_tail = m2;
2013 op->o_tmpfree( cb, op->o_tmpmemctx );
2014 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2015 return SLAPD_ABANDON;
2018 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2020 /* Record that we're modifying this entry now */
2021 mt = ch_malloc( sizeof(modtarget) );
2024 mt->mt_op = mi->mi_op;
2025 ldap_pvt_thread_mutex_init( &mt->mt_mutex );
2026 avl_insert( &si->si_mods, mt, sp_avl_cmp, avl_dup_error );
2027 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
2032 if (( have_psearches || si->si_logs ) && op->o_tag != LDAP_REQ_ADD )
2033 syncprov_matchops( op, opc, 1 );
2035 return SLAP_CB_CONTINUE;
2039 syncprov_op_extended( Operation *op, SlapReply *rs )
2041 if ( exop_is_write( op ))
2042 return syncprov_op_mod( op, rs );
2044 return SLAP_CB_CONTINUE;
2047 typedef struct searchstate {
2048 slap_overinst *ss_on;
2050 BerVarray ss_ctxcsn;
2053 #define SS_PRESENT 0x01
2054 #define SS_CHANGED 0x02
2059 syncprov_search_cleanup( Operation *op, SlapReply *rs )
2061 if ( rs->sr_ctrls ) {
2062 op->o_tmpfree( rs->sr_ctrls[0], op->o_tmpmemctx );
2063 op->o_tmpfree( rs->sr_ctrls, op->o_tmpmemctx );
2064 rs->sr_ctrls = NULL;
2069 typedef struct SyncOperationBuffer {
2073 AttributeName sob_extra; /* not always present */
2074 /* Further data allocated here */
2075 } SyncOperationBuffer;
2078 syncprov_detach_op( Operation *op, syncops *so, slap_overinst *on )
2080 SyncOperationBuffer *sopbuf2;
2085 GroupAssertion *g1, *g2;
2087 /* count the search attrs */
2088 for (i=0; op->ors_attrs && !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2089 alen += op->ors_attrs[i].an_name.bv_len + 1;
2091 /* Make a new copy of the operation */
2092 size = offsetof( SyncOperationBuffer, sob_extra ) +
2093 (i ? ( (i+1) * sizeof(AttributeName) + alen) : 0) +
2094 op->o_req_dn.bv_len + 1 +
2095 op->o_req_ndn.bv_len + 1 +
2096 op->o_ndn.bv_len + 1 +
2097 so->s_filterstr.bv_len + 1;
2098 sopbuf2 = ch_calloc( 1, size );
2099 op2 = &sopbuf2->sob_op;
2100 op2->o_hdr = &sopbuf2->sob_hdr;
2101 LDAP_SLIST_FIRST(&op2->o_extra) = &sopbuf2->sob_oe;
2103 /* Copy the fields we care about explicitly, leave the rest alone */
2104 *op2->o_hdr = *op->o_hdr;
2105 op2->o_tag = op->o_tag;
2106 op2->o_time = op->o_time;
2107 op2->o_bd = on->on_info->oi_origdb;
2108 op2->o_request = op->o_request;
2109 op2->o_managedsait = op->o_managedsait;
2110 LDAP_SLIST_FIRST(&op2->o_extra)->oe_key = on;
2111 LDAP_SLIST_NEXT(LDAP_SLIST_FIRST(&op2->o_extra), oe_next) = NULL;
2113 ptr = (char *) sopbuf2 + offsetof( SyncOperationBuffer, sob_extra );
2115 op2->ors_attrs = (AttributeName *) ptr;
2116 ptr = (char *) &op2->ors_attrs[i+1];
2117 for (i=0; !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2118 op2->ors_attrs[i] = op->ors_attrs[i];
2119 op2->ors_attrs[i].an_name.bv_val = ptr;
2120 ptr = lutil_strcopy( ptr, op->ors_attrs[i].an_name.bv_val ) + 1;
2122 BER_BVZERO( &op2->ors_attrs[i].an_name );
2125 op2->o_authz = op->o_authz;
2126 op2->o_ndn.bv_val = ptr;
2127 ptr = lutil_strcopy(ptr, op->o_ndn.bv_val) + 1;
2128 op2->o_dn = op2->o_ndn;
2129 op2->o_req_dn.bv_len = op->o_req_dn.bv_len;
2130 op2->o_req_dn.bv_val = ptr;
2131 ptr = lutil_strcopy(ptr, op->o_req_dn.bv_val) + 1;
2132 op2->o_req_ndn.bv_len = op->o_req_ndn.bv_len;
2133 op2->o_req_ndn.bv_val = ptr;
2134 ptr = lutil_strcopy(ptr, op->o_req_ndn.bv_val) + 1;
2135 op2->ors_filterstr.bv_val = ptr;
2136 strcpy( ptr, so->s_filterstr.bv_val );
2137 op2->ors_filterstr.bv_len = so->s_filterstr.bv_len;
2139 /* Skip the AND/GE clause that we stuck on in front */
2140 if ( so->s_flags & PS_FIX_FILTER ) {
2141 op2->ors_filter = op->ors_filter->f_and->f_next;
2142 so->s_flags ^= PS_FIX_FILTER;
2144 op2->ors_filter = op->ors_filter;
2146 op2->ors_filter = filter_dup( op2->ors_filter, NULL );
2149 /* Copy any cached group ACLs individually */
2150 op2->o_groups = NULL;
2151 for ( g1=op->o_groups; g1; g1=g1->ga_next ) {
2152 g2 = ch_malloc( sizeof(GroupAssertion) + g1->ga_len );
2154 strcpy( g2->ga_ndn, g1->ga_ndn );
2155 g2->ga_next = op2->o_groups;
2158 /* Don't allow any further group caching */
2159 op2->o_do_not_cache = 1;
2161 /* Add op2 to conn so abandon will find us */
2162 op->o_conn->c_n_ops_executing++;
2163 op->o_conn->c_n_ops_completed--;
2164 LDAP_STAILQ_INSERT_TAIL( &op->o_conn->c_ops, op2, o_next );
2165 so->s_flags |= PS_IS_DETACHED;
2167 /* Prevent anyone else from trying to send a result for this op */
2172 syncprov_search_response( Operation *op, SlapReply *rs )
2174 searchstate *ss = op->o_callback->sc_private;
2175 slap_overinst *on = ss->ss_on;
2176 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2177 sync_control *srs = op->o_controls[slap_cids.sc_LDAPsync];
2179 if ( rs->sr_type == REP_SEARCH || rs->sr_type == REP_SEARCHREF ) {
2181 /* If we got a referral without a referral object, there's
2182 * something missing that we cannot replicate. Just ignore it.
2183 * The consumer will abort because we didn't send the expected
2186 if ( !rs->sr_entry ) {
2187 assert( rs->sr_entry != NULL );
2188 Debug( LDAP_DEBUG_ANY, "bogus referral in context\n",0,0,0 );
2189 return SLAP_CB_CONTINUE;
2191 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryCSN );
2192 if ( a == NULL && rs->sr_operational_attrs != NULL ) {
2193 a = attr_find( rs->sr_operational_attrs, slap_schema.si_ad_entryCSN );
2197 sid = slap_parse_csn_sid( &a->a_nvals[0] );
2199 /* Don't send changed entries back to the originator */
2200 if ( sid == srs->sr_state.sid && srs->sr_state.numcsns ) {
2201 Debug( LDAP_DEBUG_SYNC,
2202 "Entry %s changed by peer, ignored\n",
2203 rs->sr_entry->e_name.bv_val, 0, 0 );
2204 return LDAP_SUCCESS;
2207 /* If not a persistent search */
2209 /* Make sure entry is less than the snapshot'd contextCSN */
2210 for ( i=0; i<ss->ss_numcsns; i++ ) {
2211 if ( sid == ss->ss_sids[i] && ber_bvcmp( &a->a_nvals[0],
2212 &ss->ss_ctxcsn[i] ) > 0 ) {
2213 Debug( LDAP_DEBUG_SYNC,
2214 "Entry %s CSN %s greater than snapshot %s\n",
2215 rs->sr_entry->e_name.bv_val,
2216 a->a_nvals[0].bv_val,
2217 ss->ss_ctxcsn[i].bv_val );
2218 return LDAP_SUCCESS;
2223 /* Don't send old entries twice */
2224 if ( srs->sr_state.ctxcsn ) {
2225 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2226 if ( sid == srs->sr_state.sids[i] &&
2227 ber_bvcmp( &a->a_nvals[0],
2228 &srs->sr_state.ctxcsn[i] )<= 0 ) {
2229 Debug( LDAP_DEBUG_SYNC,
2230 "Entry %s CSN %s older or equal to ctx %s\n",
2231 rs->sr_entry->e_name.bv_val,
2232 a->a_nvals[0].bv_val,
2233 srs->sr_state.ctxcsn[i].bv_val );
2234 return LDAP_SUCCESS;
2239 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2241 rs->sr_ctrls[1] = NULL;
2242 /* If we're in delta-sync mode, always send a cookie */
2243 if ( si->si_nopres && si->si_usehint && a ) {
2244 struct berval cookie;
2245 slap_compose_sync_cookie( op, &cookie, a->a_nvals, srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
2246 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2247 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 1, &cookie );
2249 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2250 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 0, NULL );
2252 } else if ( rs->sr_type == REP_RESULT && rs->sr_err == LDAP_SUCCESS ) {
2253 struct berval cookie = BER_BVNULL;
2255 if ( ( ss->ss_flags & SS_CHANGED ) &&
2256 ss->ss_ctxcsn && !BER_BVISNULL( &ss->ss_ctxcsn[0] )) {
2257 slap_compose_sync_cookie( op, &cookie, ss->ss_ctxcsn,
2258 srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
2260 Debug( LDAP_DEBUG_SYNC, "syncprov_search_response: cookie=%s\n", cookie.bv_val, 0, 0 );
2263 /* Is this a regular refresh?
2264 * Note: refresh never gets here if there were no changes
2267 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2269 rs->sr_ctrls[1] = NULL;
2270 rs->sr_err = syncprov_done_ctrl( op, rs, rs->sr_ctrls,
2271 0, 1, &cookie, ( ss->ss_flags & SS_PRESENT ) ? LDAP_SYNC_REFRESH_PRESENTS :
2272 LDAP_SYNC_REFRESH_DELETES );
2273 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2275 /* It's RefreshAndPersist, transition to Persist phase */
2276 syncprov_sendinfo( op, rs, ( ss->ss_flags & SS_PRESENT ) ?
2277 LDAP_TAG_SYNC_REFRESH_PRESENT : LDAP_TAG_SYNC_REFRESH_DELETE,
2278 ( ss->ss_flags & SS_CHANGED ) ? &cookie : NULL,
2280 if ( !BER_BVISNULL( &cookie ))
2281 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2283 /* Detach this Op from frontend control */
2284 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
2286 /* But not if this connection was closed along the way */
2287 if ( op->o_abandon ) {
2288 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2289 /* syncprov_ab_cleanup will free this syncop */
2290 return SLAPD_ABANDON;
2293 ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex );
2294 /* Turn off the refreshing flag */
2295 ss->ss_so->s_flags ^= PS_IS_REFRESHING;
2297 syncprov_detach_op( op, ss->ss_so, on );
2299 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2301 /* If there are queued responses, fire them off */
2302 if ( ss->ss_so->s_res )
2303 syncprov_qstart( ss->ss_so );
2304 ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
2307 return LDAP_SUCCESS;
2311 return SLAP_CB_CONTINUE;
2315 syncprov_op_search( Operation *op, SlapReply *rs )
2317 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2318 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2320 int gotstate = 0, changed = 0, do_present = 0;
2321 syncops *sop = NULL;
2325 int i, *sids, numcsns;
2326 struct berval mincsn;
2328 if ( !(op->o_sync_mode & SLAP_SYNC_REFRESH) ) return SLAP_CB_CONTINUE;
2330 if ( op->ors_deref & LDAP_DEREF_SEARCHING ) {
2331 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR, "illegal value for derefAliases" );
2335 srs = op->o_controls[slap_cids.sc_LDAPsync];
2337 /* If this is a persistent search, set it up right away */
2338 if ( op->o_sync_mode & SLAP_SYNC_PERSIST ) {
2348 so.s_flags = PS_IS_REFRESHING | PS_FIND_BASE;
2349 /* syncprov_findbase expects to be called as a callback... */
2350 sc.sc_private = &opc;
2352 ldap_pvt_thread_mutex_init( &so.s_mutex );
2353 cb = op->o_callback;
2354 op->o_callback = ≻
2355 rs->sr_err = syncprov_findbase( op, &fc );
2356 op->o_callback = cb;
2357 ldap_pvt_thread_mutex_destroy( &so.s_mutex );
2359 if ( rs->sr_err != LDAP_SUCCESS ) {
2360 send_ldap_result( op, rs );
2363 sop = ch_malloc( sizeof( syncops ));
2365 ldap_pvt_thread_mutex_init( &sop->s_mutex );
2366 sop->s_rid = srs->sr_state.rid;
2367 sop->s_sid = srs->sr_state.sid;
2370 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2371 sop->s_next = si->si_ops;
2373 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2376 /* snapshot the ctxcsn */
2377 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2378 numcsns = si->si_numcsns;
2380 ber_bvarray_dup_x( &ctxcsn, si->si_ctxcsn, op->o_tmpmemctx );
2381 sids = op->o_tmpalloc( numcsns * sizeof(int), op->o_tmpmemctx );
2382 for ( i=0; i<numcsns; i++ )
2383 sids[i] = si->si_sids[i];
2388 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2390 /* If we have a cookie, handle the PRESENT lookups */
2391 if ( srs->sr_state.ctxcsn ) {
2395 /* If we don't have any CSN of our own yet, pretend nothing
2401 if ( !si->si_nopres )
2402 do_present = SS_PRESENT;
2404 /* If there are SIDs we don't recognize in the cookie, drop them */
2405 for (i=0; i<srs->sr_state.numcsns; ) {
2406 for (j=0; j<numcsns; j++) {
2407 if ( srs->sr_state.sids[i] == sids[j] ) {
2412 if ( j == numcsns ) {
2413 struct berval tmp = srs->sr_state.ctxcsn[i];
2414 j = srs->sr_state.numcsns - 1;
2415 srs->sr_state.ctxcsn[i] = srs->sr_state.ctxcsn[j];
2417 srs->sr_state.ctxcsn[j] = tmp;
2418 srs->sr_state.numcsns = j;
2419 srs->sr_state.sids[i] = srs->sr_state.sids[j];
2425 /* Find the smallest CSN */
2426 mincsn = srs->sr_state.ctxcsn[0];
2427 for ( i=1; i<srs->sr_state.numcsns; i++ ) {
2428 if ( ber_bvcmp( &mincsn, &srs->sr_state.ctxcsn[i] ) > 0 )
2429 mincsn = srs->sr_state.ctxcsn[i];
2432 /* If nothing has changed, shortcut it */
2433 if ( srs->sr_state.numcsns == numcsns ) {
2435 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2436 for ( j=0; j<numcsns; j++ ) {
2437 if ( srs->sr_state.sids[i] != sids[j] )
2439 newer = ber_bvcmp( &srs->sr_state.ctxcsn[i], &ctxcsn[j] );
2440 /* If our state is newer, tell consumer about changes */
2442 changed = SS_CHANGED;
2443 else if ( newer > 0 ) {
2444 /* our state is older, tell consumer nothing */
2446 syncops **sp = &si->si_ops;
2448 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2449 while ( *sp != sop )
2450 sp = &(*sp)->s_next;
2452 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2455 rs->sr_err = LDAP_SUCCESS;
2456 rs->sr_ctrls = NULL;
2457 send_ldap_result( op, rs );
2467 no_change: if ( !(op->o_sync_mode & SLAP_SYNC_PERSIST) ) {
2468 LDAPControl *ctrls[2];
2472 syncprov_done_ctrl( op, rs, ctrls, 0, 0,
2473 NULL, LDAP_SYNC_REFRESH_DELETES );
2474 rs->sr_ctrls = ctrls;
2475 rs->sr_err = LDAP_SUCCESS;
2476 send_ldap_result( op, rs );
2477 rs->sr_ctrls = NULL;
2483 /* consumer doesn't have the right number of CSNs */
2484 changed = SS_CHANGED;
2486 /* Do we have a sessionlog for this search? */
2489 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
2490 /* Are there any log entries, and is the consumer state
2491 * present in the session log?
2493 if ( sl->sl_num > 0 && ber_bvcmp( &mincsn, &sl->sl_mincsn ) >= 0 ) {
2495 /* mutex is unlocked in playlog */
2496 syncprov_playlog( op, rs, sl, srs, ctxcsn, numcsns, sids );
2498 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
2501 /* Is the CSN still present in the database? */
2502 if ( syncprov_findcsn( op, FIND_CSN ) != LDAP_SUCCESS ) {
2503 /* No, so a reload is required */
2504 /* the 2.2 consumer doesn't send this hint */
2505 if ( si->si_usehint && srs->sr_rhint == 0 ) {
2507 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2509 op->o_tmpfree( sids, op->o_tmpmemctx );
2510 send_ldap_error( op, rs, LDAP_SYNC_REFRESH_REQUIRED, "sync cookie is stale" );
2513 if ( srs->sr_state.ctxcsn ) {
2514 ber_bvarray_free_x( srs->sr_state.ctxcsn, op->o_tmpmemctx );
2515 srs->sr_state.ctxcsn = NULL;
2517 if ( srs->sr_state.sids ) {
2518 slap_sl_free( srs->sr_state.sids, op->o_tmpmemctx );
2519 srs->sr_state.sids = NULL;
2521 srs->sr_state.numcsns = 0;
2524 /* If changed and doing Present lookup, send Present UUIDs */
2525 if ( do_present && syncprov_findcsn( op, FIND_PRESENT ) !=
2528 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2530 op->o_tmpfree( sids, op->o_tmpmemctx );
2531 send_ldap_result( op, rs );
2536 /* No consumer state, assume something has changed */
2537 changed = SS_CHANGED;
2541 /* Append CSN range to search filter, save original filter
2542 * for persistent search evaluation
2545 sop->s_filterstr= op->ors_filterstr;
2548 /* If something changed, find the changes */
2549 if ( gotstate && changed ) {
2550 Filter *fand, *fava;
2552 fand = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2553 fand->f_choice = LDAP_FILTER_AND;
2554 fand->f_next = NULL;
2555 fava = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2557 fava->f_choice = LDAP_FILTER_GE;
2558 fava->f_ava = op->o_tmpalloc( sizeof(AttributeAssertion), op->o_tmpmemctx );
2559 fava->f_ava->aa_desc = slap_schema.si_ad_entryCSN;
2560 #ifdef LDAP_COMP_MATCH
2561 fava->f_ava->aa_cf = NULL;
2563 ber_dupbv_x( &fava->f_ava->aa_value, &mincsn, op->o_tmpmemctx );
2564 fava->f_next = op->ors_filter;
2565 op->ors_filter = fand;
2566 filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2568 sop->s_flags |= PS_FIX_FILTER;
2571 /* Let our callback add needed info to returned entries */
2572 cb = op->o_tmpcalloc(1, sizeof(slap_callback)+sizeof(searchstate), op->o_tmpmemctx);
2573 ss = (searchstate *)(cb+1);
2576 ss->ss_flags = do_present | changed;
2577 ss->ss_ctxcsn = ctxcsn;
2578 ss->ss_numcsns = numcsns;
2580 cb->sc_response = syncprov_search_response;
2581 cb->sc_cleanup = syncprov_search_cleanup;
2582 cb->sc_private = ss;
2583 cb->sc_next = op->o_callback;
2584 op->o_callback = cb;
2586 /* If this is a persistent search and no changes were reported during
2587 * the refresh phase, just invoke the response callback to transition
2588 * us into persist phase
2591 rs->sr_err = LDAP_SUCCESS;
2592 rs->sr_nentries = 0;
2593 send_ldap_result( op, rs );
2596 return SLAP_CB_CONTINUE;
2600 syncprov_operational(
2604 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2605 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2607 /* This prevents generating unnecessarily; frontend will strip
2608 * any statically stored copy.
2610 if ( op->o_sync != SLAP_CONTROL_NONE )
2611 return SLAP_CB_CONTINUE;
2613 if ( rs->sr_entry &&
2614 dn_match( &rs->sr_entry->e_nname, &si->si_contextdn )) {
2616 if ( SLAP_OPATTRS( rs->sr_attr_flags ) ||
2617 ad_inlist( slap_schema.si_ad_contextCSN, rs->sr_attrs )) {
2618 Attribute *a, **ap = NULL;
2620 for ( a=rs->sr_entry->e_attrs; a; a=a->a_next ) {
2621 if ( a->a_desc == slap_schema.si_ad_contextCSN )
2625 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2626 if ( si->si_ctxcsn ) {
2628 for ( ap = &rs->sr_operational_attrs; *ap;
2629 ap=&(*ap)->a_next );
2631 a = attr_alloc( slap_schema.si_ad_contextCSN );
2636 if ( !(rs->sr_flags & REP_ENTRY_MODIFIABLE) ) {
2637 Entry *e = entry_dup( rs->sr_entry );
2638 if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
2639 overlay_entry_release_ov( op, rs->sr_entry, 0, on );
2640 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
2641 } else if ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) {
2642 entry_free( rs->sr_entry );
2646 REP_ENTRY_MODIFIABLE|REP_ENTRY_MUSTBEFREED;
2647 a = attr_find( rs->sr_entry->e_attrs,
2648 slap_schema.si_ad_contextCSN );
2650 if ( a->a_nvals != a->a_vals ) {
2651 ber_bvarray_free( a->a_nvals );
2654 ber_bvarray_free( a->a_vals );
2658 attr_valadd( a, si->si_ctxcsn, si->si_ctxcsn, si->si_numcsns );
2660 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2663 return SLAP_CB_CONTINUE;
2673 static ConfigDriver sp_cf_gen;
2675 static ConfigTable spcfg[] = {
2676 { "syncprov-checkpoint", "ops> <minutes", 3, 3, 0, ARG_MAGIC|SP_CHKPT,
2677 sp_cf_gen, "( OLcfgOvAt:1.1 NAME 'olcSpCheckpoint' "
2678 "DESC 'ContextCSN checkpoint interval in ops and minutes' "
2679 "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
2680 { "syncprov-sessionlog", "ops", 2, 2, 0, ARG_INT|ARG_MAGIC|SP_SESSL,
2681 sp_cf_gen, "( OLcfgOvAt:1.2 NAME 'olcSpSessionlog' "
2682 "DESC 'Session log size in ops' "
2683 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
2684 { "syncprov-nopresent", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_NOPRES,
2685 sp_cf_gen, "( OLcfgOvAt:1.3 NAME 'olcSpNoPresent' "
2686 "DESC 'Omit Present phase processing' "
2687 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2688 { "syncprov-reloadhint", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_USEHINT,
2689 sp_cf_gen, "( OLcfgOvAt:1.4 NAME 'olcSpReloadHint' "
2690 "DESC 'Observe Reload Hint in Request control' "
2691 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2692 { NULL, NULL, 0, 0, 0, ARG_IGNORED }
2695 static ConfigOCs spocs[] = {
2696 { "( OLcfgOvOc:1.1 "
2697 "NAME 'olcSyncProvConfig' "
2698 "DESC 'SyncRepl Provider configuration' "
2699 "SUP olcOverlayConfig "
2700 "MAY ( olcSpCheckpoint "
2701 "$ olcSpSessionlog "
2703 "$ olcSpReloadHint "
2705 Cft_Overlay, spcfg },
2710 sp_cf_gen(ConfigArgs *c)
2712 slap_overinst *on = (slap_overinst *)c->bi;
2713 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2716 if ( c->op == SLAP_CONFIG_EMIT ) {
2717 switch ( c->type ) {
2719 if ( si->si_chkops || si->si_chktime ) {
2721 /* we assume si_chktime is a multiple of 60
2722 * because the parsed value was originally
2723 * multiplied by 60 */
2724 bv.bv_len = snprintf( c->cr_msg, sizeof( c->cr_msg ),
2725 "%d %d", si->si_chkops, si->si_chktime/60 );
2726 if ( bv.bv_len >= sizeof( c->cr_msg ) ) {
2729 bv.bv_val = c->cr_msg;
2730 value_add_one( &c->rvalue_vals, &bv );
2737 if ( si->si_logs ) {
2738 c->value_int = si->si_logs->sl_size;
2744 if ( si->si_nopres ) {
2751 if ( si->si_usehint ) {
2759 } else if ( c->op == LDAP_MOD_DELETE ) {
2760 switch ( c->type ) {
2767 si->si_logs->sl_size = 0;
2769 rc = LDAP_NO_SUCH_ATTRIBUTE;
2772 if ( si->si_nopres )
2775 rc = LDAP_NO_SUCH_ATTRIBUTE;
2778 if ( si->si_usehint )
2781 rc = LDAP_NO_SUCH_ATTRIBUTE;
2786 switch ( c->type ) {
2788 if ( lutil_atoi( &si->si_chkops, c->argv[1] ) != 0 ) {
2789 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint ops # \"%s\"",
2790 c->argv[0], c->argv[1] );
2791 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2792 "%s: %s\n", c->log, c->cr_msg, 0 );
2793 return ARG_BAD_CONF;
2795 if ( si->si_chkops <= 0 ) {
2796 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint ops # \"%d\"",
2797 c->argv[0], si->si_chkops );
2798 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2799 "%s: %s\n", c->log, c->cr_msg, 0 );
2800 return ARG_BAD_CONF;
2802 if ( lutil_atoi( &si->si_chktime, c->argv[2] ) != 0 ) {
2803 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint time \"%s\"",
2804 c->argv[0], c->argv[1] );
2805 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2806 "%s: %s\n", c->log, c->cr_msg, 0 );
2807 return ARG_BAD_CONF;
2809 if ( si->si_chktime <= 0 ) {
2810 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint time \"%d\"",
2811 c->argv[0], si->si_chkops );
2812 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2813 "%s: %s\n", c->log, c->cr_msg, 0 );
2814 return ARG_BAD_CONF;
2816 si->si_chktime *= 60;
2820 int size = c->value_int;
2823 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s size %d is negative",
2825 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2826 "%s: %s\n", c->log, c->cr_msg, 0 );
2827 return ARG_BAD_CONF;
2831 sl = ch_malloc( sizeof( sessionlog ) + LDAP_PVT_CSNSTR_BUFSIZE );
2832 sl->sl_mincsn.bv_val = (char *)(sl+1);
2833 sl->sl_mincsn.bv_len = 0;
2835 sl->sl_head = sl->sl_tail = NULL;
2836 ldap_pvt_thread_mutex_init( &sl->sl_mutex );
2843 si->si_nopres = c->value_int;
2846 si->si_usehint = c->value_int;
2852 /* ITS#3456 we cannot run this search on the main thread, must use a
2853 * child thread in order to insure we have a big enough stack.
2860 syncprov_findcsn( ptr, FIND_MAXCSN );
2864 /* Read any existing contextCSN from the underlying db.
2865 * Then search for any entries newer than that. If no value exists,
2866 * just generate it. Cache whatever result.
2874 slap_overinst *on = (slap_overinst *) be->bd_info;
2875 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2877 Connection conn = { 0 };
2878 OperationBuffer opbuf;
2883 void *thrctx = NULL;
2885 if ( !SLAP_LASTMOD( be )) {
2886 Debug( LDAP_DEBUG_ANY,
2887 "syncprov_db_open: invalid config, lastmod must be enabled\n", 0, 0, 0 );
2891 if ( slapMode & SLAP_TOOL_MODE ) {
2895 rc = overlay_register_control( be, LDAP_CONTROL_SYNC );
2900 thrctx = ldap_pvt_thread_pool_context();
2901 connection_fake_init( &conn, &opbuf, thrctx );
2904 op->o_dn = be->be_rootdn;
2905 op->o_ndn = be->be_rootndn;
2907 if ( SLAP_SYNC_SUBENTRY( be )) {
2908 build_new_dn( &si->si_contextdn, be->be_nsuffix,
2909 (struct berval *)&slap_ldapsync_cn_bv, NULL );
2911 si->si_contextdn = be->be_nsuffix[0];
2913 rc = overlay_entry_get_ov( op, &si->si_contextdn, NULL,
2914 slap_schema.si_ad_contextCSN, 0, &e, on );
2917 ldap_pvt_thread_t tid;
2919 a = attr_find( e->e_attrs, slap_schema.si_ad_contextCSN );
2921 ber_bvarray_dup_x( &si->si_ctxcsn, a->a_vals, NULL );
2922 si->si_numcsns = a->a_numvals;
2923 si->si_sids = slap_parse_csn_sids( si->si_ctxcsn, a->a_numvals, NULL );
2925 overlay_entry_release_ov( op, e, 0, on );
2926 if ( si->si_ctxcsn && !SLAP_DBCLEAN( be )) {
2927 op->o_req_dn = be->be_suffix[0];
2928 op->o_req_ndn = be->be_nsuffix[0];
2929 op->ors_scope = LDAP_SCOPE_SUBTREE;
2930 ldap_pvt_thread_create( &tid, 0, syncprov_db_otask, op );
2931 ldap_pvt_thread_join( tid, NULL );
2935 /* Didn't find a contextCSN, should we generate one? */
2936 if ( !si->si_ctxcsn ) {
2937 char csnbuf[ LDAP_PVT_CSNSTR_BUFSIZE ];
2940 if ( SLAP_SYNC_SHADOW( op->o_bd )) {
2941 /* If we're also a consumer, then don't generate anything.
2942 * Wait for our provider to send it to us, or for a local
2943 * modify if we have multimaster.
2947 csn.bv_val = csnbuf;
2948 csn.bv_len = sizeof( csnbuf );
2949 slap_get_csn( op, &csn, 0 );
2950 value_add_one( &si->si_ctxcsn, &csn );
2952 si->si_sids = ch_malloc( sizeof(int) );
2953 si->si_sids[0] = slap_serverID;
2955 /* make sure we do a checkpoint on close */
2960 op->o_bd->bd_info = (BackendInfo *)on;
2964 /* Write the current contextCSN into the underlying db.
2972 slap_overinst *on = (slap_overinst *) be->bd_info;
2973 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2975 if ( slapMode & SLAP_TOOL_MODE ) {
2978 if ( si->si_numops ) {
2979 Connection conn = {0};
2980 OperationBuffer opbuf;
2982 SlapReply rs = {REP_RESULT};
2985 thrctx = ldap_pvt_thread_pool_context();
2986 connection_fake_init( &conn, &opbuf, thrctx );
2989 op->o_dn = be->be_rootdn;
2990 op->o_ndn = be->be_rootndn;
2991 syncprov_checkpoint( op, &rs, on );
3003 slap_overinst *on = (slap_overinst *)be->bd_info;
3004 syncprov_info_t *si;
3006 if ( SLAP_ISGLOBALOVERLAY( be ) ) {
3007 Debug( LDAP_DEBUG_ANY,
3008 "syncprov must be instantiated within a database.\n",
3013 si = ch_calloc(1, sizeof(syncprov_info_t));
3014 on->on_bi.bi_private = si;
3015 ldap_pvt_thread_rdwr_init( &si->si_csn_rwlock );
3016 ldap_pvt_thread_mutex_init( &si->si_ops_mutex );
3017 ldap_pvt_thread_mutex_init( &si->si_mods_mutex );
3018 ldap_pvt_thread_mutex_init( &si->si_resp_mutex );
3020 csn_anlist[0].an_desc = slap_schema.si_ad_entryCSN;
3021 csn_anlist[0].an_name = slap_schema.si_ad_entryCSN->ad_cname;
3022 csn_anlist[1].an_desc = slap_schema.si_ad_entryUUID;
3023 csn_anlist[1].an_name = slap_schema.si_ad_entryUUID->ad_cname;
3025 uuid_anlist[0].an_desc = slap_schema.si_ad_entryUUID;
3026 uuid_anlist[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
3032 syncprov_db_destroy(
3037 slap_overinst *on = (slap_overinst *)be->bd_info;
3038 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3041 if ( si->si_logs ) {
3042 slog_entry *se = si->si_logs->sl_head;
3045 slog_entry *se_next = se->se_next;
3050 ch_free( si->si_logs );
3052 if ( si->si_ctxcsn )
3053 ber_bvarray_free( si->si_ctxcsn );
3055 ch_free( si->si_sids );
3056 ldap_pvt_thread_mutex_destroy( &si->si_resp_mutex );
3057 ldap_pvt_thread_mutex_destroy( &si->si_mods_mutex );
3058 ldap_pvt_thread_mutex_destroy( &si->si_ops_mutex );
3059 ldap_pvt_thread_rdwr_destroy( &si->si_csn_rwlock );
3066 static int syncprov_parseCtrl (
3072 BerElementBuffer berbuf;
3073 BerElement *ber = (BerElement *)&berbuf;
3076 struct berval cookie = BER_BVNULL;
3080 if ( op->o_sync != SLAP_CONTROL_NONE ) {
3081 rs->sr_text = "Sync control specified multiple times";
3082 return LDAP_PROTOCOL_ERROR;
3085 if ( op->o_pagedresults != SLAP_CONTROL_NONE ) {
3086 rs->sr_text = "Sync control specified with pagedResults control";
3087 return LDAP_PROTOCOL_ERROR;
3090 if ( BER_BVISNULL( &ctrl->ldctl_value ) ) {
3091 rs->sr_text = "Sync control value is absent";
3092 return LDAP_PROTOCOL_ERROR;
3095 if ( BER_BVISEMPTY( &ctrl->ldctl_value ) ) {
3096 rs->sr_text = "Sync control value is empty";
3097 return LDAP_PROTOCOL_ERROR;
3100 /* Parse the control value
3101 * syncRequestValue ::= SEQUENCE {
3106 * refreshAndPersist (3)
3108 * cookie syncCookie OPTIONAL
3112 ber_init2( ber, &ctrl->ldctl_value, 0 );
3114 if ( (tag = ber_scanf( ber, "{i" /*}*/, &mode )) == LBER_ERROR ) {
3115 rs->sr_text = "Sync control : mode decoding error";
3116 return LDAP_PROTOCOL_ERROR;
3120 case LDAP_SYNC_REFRESH_ONLY:
3121 mode = SLAP_SYNC_REFRESH;
3123 case LDAP_SYNC_REFRESH_AND_PERSIST:
3124 mode = SLAP_SYNC_REFRESH_AND_PERSIST;
3127 rs->sr_text = "Sync control : unknown update mode";
3128 return LDAP_PROTOCOL_ERROR;
3131 tag = ber_peek_tag( ber, &len );
3133 if ( tag == LDAP_TAG_SYNC_COOKIE ) {
3134 if (( ber_scanf( ber, /*{*/ "m", &cookie )) == LBER_ERROR ) {
3135 rs->sr_text = "Sync control : cookie decoding error";
3136 return LDAP_PROTOCOL_ERROR;
3138 tag = ber_peek_tag( ber, &len );
3140 if ( tag == LDAP_TAG_RELOAD_HINT ) {
3141 if (( ber_scanf( ber, /*{*/ "b", &rhint )) == LBER_ERROR ) {
3142 rs->sr_text = "Sync control : rhint decoding error";
3143 return LDAP_PROTOCOL_ERROR;
3146 if (( ber_scanf( ber, /*{*/ "}")) == LBER_ERROR ) {
3147 rs->sr_text = "Sync control : decoding error";
3148 return LDAP_PROTOCOL_ERROR;
3150 sr = op->o_tmpcalloc( 1, sizeof(struct sync_control), op->o_tmpmemctx );
3151 sr->sr_rhint = rhint;
3152 if (!BER_BVISNULL(&cookie)) {
3153 ber_dupbv_x( &sr->sr_state.octet_str, &cookie, op->o_tmpmemctx );
3154 /* If parse fails, pretend no cookie was sent */
3155 if ( slap_parse_sync_cookie( &sr->sr_state, op->o_tmpmemctx ) ||
3156 sr->sr_state.rid == -1 ) {
3157 if ( sr->sr_state.ctxcsn ) {
3158 ber_bvarray_free_x( sr->sr_state.ctxcsn, op->o_tmpmemctx );
3159 sr->sr_state.ctxcsn = NULL;
3161 sr->sr_state.numcsns = 0;
3165 op->o_controls[slap_cids.sc_LDAPsync] = sr;
3167 op->o_sync = ctrl->ldctl_iscritical
3168 ? SLAP_CONTROL_CRITICAL
3169 : SLAP_CONTROL_NONCRITICAL;
3171 op->o_sync_mode |= mode; /* o_sync_mode shares o_sync */
3173 return LDAP_SUCCESS;
3176 /* This overlay is set up for dynamic loading via moduleload. For static
3177 * configuration, you'll need to arrange for the slap_overinst to be
3178 * initialized and registered by some other function inside slapd.
3181 static slap_overinst syncprov;
3184 syncprov_initialize()
3188 rc = register_supported_control( LDAP_CONTROL_SYNC,
3189 SLAP_CTRL_SEARCH, NULL,
3190 syncprov_parseCtrl, &slap_cids.sc_LDAPsync );
3191 if ( rc != LDAP_SUCCESS ) {
3192 Debug( LDAP_DEBUG_ANY,
3193 "syncprov_init: Failed to register control %d\n", rc, 0, 0 );
3197 syncprov.on_bi.bi_type = "syncprov";
3198 syncprov.on_bi.bi_db_init = syncprov_db_init;
3199 syncprov.on_bi.bi_db_destroy = syncprov_db_destroy;
3200 syncprov.on_bi.bi_db_open = syncprov_db_open;
3201 syncprov.on_bi.bi_db_close = syncprov_db_close;
3203 syncprov.on_bi.bi_op_abandon = syncprov_op_abandon;
3204 syncprov.on_bi.bi_op_cancel = syncprov_op_abandon;
3206 syncprov.on_bi.bi_op_add = syncprov_op_mod;
3207 syncprov.on_bi.bi_op_compare = syncprov_op_compare;
3208 syncprov.on_bi.bi_op_delete = syncprov_op_mod;
3209 syncprov.on_bi.bi_op_modify = syncprov_op_mod;
3210 syncprov.on_bi.bi_op_modrdn = syncprov_op_mod;
3211 syncprov.on_bi.bi_op_search = syncprov_op_search;
3212 syncprov.on_bi.bi_extended = syncprov_op_extended;
3213 syncprov.on_bi.bi_operational = syncprov_operational;
3215 syncprov.on_bi.bi_cf_ocs = spocs;
3217 generic_filter.f_desc = slap_schema.si_ad_objectClass;
3219 rc = config_register_schema( spcfg, spocs );
3220 if ( rc ) return rc;
3222 return overlay_register( &syncprov );
3225 #if SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC
3227 init_module( int argc, char *argv[] )
3229 return syncprov_initialize();
3231 #endif /* SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC */
3233 #endif /* defined(SLAPD_OVER_SYNCPROV) */