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;
60 /* Record of a persistent search */
61 typedef struct syncops {
62 struct syncops *s_next;
63 struct berval s_base; /* ndn of search base */
64 ID s_eid; /* entryID of search base */
65 Operation *s_op; /* search op */
68 struct berval s_filterstr;
69 int s_flags; /* search status */
70 #define PS_IS_REFRESHING 0x01
71 #define PS_IS_DETACHED 0x02
72 #define PS_WROTE_BASE 0x04
73 #define PS_FIND_BASE 0x08
74 #define PS_FIX_FILTER 0x10
75 #define PS_TASK_QUEUED 0x20
77 int s_inuse; /* reference count */
78 struct syncres *s_res;
79 struct syncres *s_restail;
80 ldap_pvt_thread_mutex_t s_mutex;
83 /* A received sync control */
84 typedef struct sync_control {
85 struct sync_cookie sr_state;
89 #if 0 /* moved back to slap.h */
90 #define o_sync o_ctrlflag[slap_cids.sc_LDAPsync]
92 /* o_sync_mode uses data bits of o_sync */
93 #define o_sync_mode o_ctrlflag[slap_cids.sc_LDAPsync]
95 #define SLAP_SYNC_NONE (LDAP_SYNC_NONE<<SLAP_CONTROL_SHIFT)
96 #define SLAP_SYNC_REFRESH (LDAP_SYNC_REFRESH_ONLY<<SLAP_CONTROL_SHIFT)
97 #define SLAP_SYNC_PERSIST (LDAP_SYNC_RESERVED<<SLAP_CONTROL_SHIFT)
98 #define SLAP_SYNC_REFRESH_AND_PERSIST (LDAP_SYNC_REFRESH_AND_PERSIST<<SLAP_CONTROL_SHIFT)
100 /* Record of which searches matched at premodify step */
101 typedef struct syncmatches {
102 struct syncmatches *sm_next;
106 /* Session log data */
107 typedef struct slog_entry {
108 struct slog_entry *se_next;
109 struct berval se_uuid;
110 struct berval se_csn;
115 typedef struct sessionlog {
116 struct berval sl_mincsn;
121 ldap_pvt_thread_mutex_t sl_mutex;
124 /* The main state for this overlay */
125 typedef struct syncprov_info_t {
127 BerVarray si_ctxcsn; /* ldapsync context */
128 struct berval si_contextdn;
131 int si_chkops; /* checkpointing info */
133 int si_numops; /* number of ops since last checkpoint */
134 int si_nopres; /* Skip present phase */
135 int si_usehint; /* use reload hint */
136 time_t si_chklast; /* time of last checkpoint */
137 Avlnode *si_mods; /* entries being modified */
139 ldap_pvt_thread_rdwr_t si_csn_rwlock;
140 ldap_pvt_thread_mutex_t si_ops_mutex;
141 ldap_pvt_thread_mutex_t si_mods_mutex;
142 ldap_pvt_thread_mutex_t si_resp_mutex;
145 typedef struct opcookie {
147 syncmatches *smatches;
150 struct berval sdn; /* DN of entry, for deletes */
152 struct berval suuid; /* UUID of entry */
153 struct berval sctxcsn;
154 short osid; /* sid of op csn */
155 short rsid; /* sid of relay */
156 short sreference; /* Is the entry a reference? */
159 typedef struct mutexint {
160 ldap_pvt_thread_mutex_t mi_mutex;
164 typedef struct fbase_cookie {
165 struct berval *fdn; /* DN of a modified entry, for scope testing */
166 syncops *fss; /* persistent search we're testing against */
167 int fbase; /* if TRUE we found the search base and it's still valid */
168 int fscope; /* if TRUE then fdn is within the psearch scope */
171 static AttributeName csn_anlist[3];
172 static AttributeName uuid_anlist[2];
174 /* Build a LDAPsync intermediate state control */
180 int entry_sync_state,
184 struct berval *cookie )
189 BerElementBuffer berbuf;
190 BerElement *ber = (BerElement *)&berbuf;
192 struct berval entryuuid_bv = BER_BVNULL;
194 ber_init2( ber, 0, LBER_USE_DER );
195 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
197 ctrls[num_ctrls] = op->o_tmpalloc( sizeof ( LDAPControl ), op->o_tmpmemctx );
199 for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
200 AttributeDescription *desc = a->a_desc;
201 if ( desc == slap_schema.si_ad_entryUUID ) {
202 entryuuid_bv = a->a_nvals[0];
207 /* FIXME: what if entryuuid is NULL or empty ? */
209 if ( send_cookie && cookie ) {
210 ber_printf( ber, "{eOON}",
211 entry_sync_state, &entryuuid_bv, cookie );
213 ber_printf( ber, "{eON}",
214 entry_sync_state, &entryuuid_bv );
217 ctrls[num_ctrls]->ldctl_oid = LDAP_CONTROL_SYNC_STATE;
218 ctrls[num_ctrls]->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
219 ret = ber_flatten2( ber, &ctrls[num_ctrls]->ldctl_value, 1 );
224 Debug( LDAP_DEBUG_TRACE,
225 "slap_build_sync_ctrl: ber_flatten2 failed\n",
227 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
234 /* Build a LDAPsync final state control */
242 struct berval *cookie,
246 BerElementBuffer berbuf;
247 BerElement *ber = (BerElement *)&berbuf;
249 ber_init2( ber, NULL, LBER_USE_DER );
250 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
252 ctrls[num_ctrls] = op->o_tmpalloc( sizeof ( LDAPControl ), op->o_tmpmemctx );
254 ber_printf( ber, "{" );
255 if ( send_cookie && cookie ) {
256 ber_printf( ber, "O", cookie );
258 if ( refreshDeletes == LDAP_SYNC_REFRESH_DELETES ) {
259 ber_printf( ber, "b", refreshDeletes );
261 ber_printf( ber, "N}" );
263 ctrls[num_ctrls]->ldctl_oid = LDAP_CONTROL_SYNC_DONE;
264 ctrls[num_ctrls]->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
265 ret = ber_flatten2( ber, &ctrls[num_ctrls]->ldctl_value, 1 );
270 Debug( LDAP_DEBUG_TRACE,
271 "syncprov_done_ctrl: ber_flatten2 failed\n",
273 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
285 struct berval *cookie,
290 BerElementBuffer berbuf;
291 BerElement *ber = (BerElement *)&berbuf;
292 struct berval rspdata;
296 ber_init2( ber, NULL, LBER_USE_DER );
297 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
301 case LDAP_TAG_SYNC_NEW_COOKIE:
302 ber_printf( ber, "tO", type, cookie );
304 case LDAP_TAG_SYNC_REFRESH_DELETE:
305 case LDAP_TAG_SYNC_REFRESH_PRESENT:
306 ber_printf( ber, "t{", type );
308 ber_printf( ber, "O", cookie );
310 if ( refreshDone == 0 ) {
311 ber_printf( ber, "b", refreshDone );
313 ber_printf( ber, "N}" );
315 case LDAP_TAG_SYNC_ID_SET:
316 ber_printf( ber, "t{", type );
318 ber_printf( ber, "O", cookie );
320 if ( refreshDeletes == 1 ) {
321 ber_printf( ber, "b", refreshDeletes );
323 ber_printf( ber, "[W]", syncUUIDs );
324 ber_printf( ber, "N}" );
327 Debug( LDAP_DEBUG_TRACE,
328 "syncprov_sendinfo: invalid syncinfo type (%d)\n",
334 ret = ber_flatten2( ber, &rspdata, 0 );
337 Debug( LDAP_DEBUG_TRACE,
338 "syncprov_sendinfo: ber_flatten2 failed\n",
340 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
344 rs->sr_rspoid = LDAP_SYNC_INFO;
345 rs->sr_rspdata = &rspdata;
346 send_ldap_intermediate( op, rs );
347 rs->sr_rspdata = NULL;
353 /* Find a modtarget in an AVL tree */
355 sp_avl_cmp( const void *c1, const void *c2 )
357 const modtarget *m1, *m2;
361 rc = m1->mt_op->o_req_ndn.bv_len - m2->mt_op->o_req_ndn.bv_len;
364 return ber_bvcmp( &m1->mt_op->o_req_ndn, &m2->mt_op->o_req_ndn );
367 /* syncprov_findbase:
368 * finds the true DN of the base of a search (with alias dereferencing) and
369 * checks to make sure the base entry doesn't get replaced with a different
370 * entry (e.g., swapping trees via ModDN, or retargeting an alias). If a
371 * change is detected, any persistent search on this base must be terminated /
373 * On the first call, we just save the DN and entryID. On subsequent calls
374 * we compare the DN and entryID with the saved values.
377 findbase_cb( Operation *op, SlapReply *rs )
379 slap_callback *sc = op->o_callback;
381 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
382 fbase_cookie *fc = sc->sc_private;
384 /* If no entryID, we're looking for the first time.
385 * Just store whatever we got.
387 if ( fc->fss->s_eid == NOID ) {
389 fc->fss->s_eid = rs->sr_entry->e_id;
390 ber_dupbv( &fc->fss->s_base, &rs->sr_entry->e_nname );
392 } else if ( rs->sr_entry->e_id == fc->fss->s_eid &&
393 dn_match( &rs->sr_entry->e_nname, &fc->fss->s_base )) {
395 /* OK, the DN is the same and the entryID is the same. */
399 if ( rs->sr_err != LDAP_SUCCESS ) {
400 Debug( LDAP_DEBUG_ANY, "findbase failed! %d\n", rs->sr_err,0,0 );
405 static Filter generic_filter = { LDAP_FILTER_PRESENT, { 0 }, NULL };
406 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
409 syncprov_findbase( Operation *op, fbase_cookie *fc )
411 /* Use basic parameters from syncrepl search, but use
412 * current op's threadctx / tmpmemctx
414 ldap_pvt_thread_mutex_lock( &fc->fss->s_mutex );
415 if ( fc->fss->s_flags & PS_FIND_BASE ) {
416 slap_callback cb = {0};
418 SlapReply frs = { REP_RESULT };
421 fc->fss->s_flags ^= PS_FIND_BASE;
422 ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
424 fop = *fc->fss->s_op;
426 fop.o_bd = fop.o_bd->bd_self;
427 fop.o_hdr = op->o_hdr;
428 fop.o_time = op->o_time;
429 fop.o_tincr = op->o_tincr;
431 cb.sc_response = findbase_cb;
434 fop.o_sync_mode = 0; /* turn off sync mode */
435 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
436 fop.o_callback = &cb;
437 fop.o_tag = LDAP_REQ_SEARCH;
438 fop.ors_scope = LDAP_SCOPE_BASE;
439 fop.ors_limit = NULL;
441 fop.ors_tlimit = SLAP_NO_LIMIT;
442 fop.ors_attrs = slap_anlist_no_attrs;
443 fop.ors_attrsonly = 1;
444 fop.ors_filter = &generic_filter;
445 fop.ors_filterstr = generic_filterstr;
447 rc = fop.o_bd->be_search( &fop, &frs );
449 ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
453 /* After the first call, see if the fdn resides in the scope */
454 if ( fc->fbase == 1 ) {
455 switch ( fc->fss->s_op->ors_scope ) {
456 case LDAP_SCOPE_BASE:
457 fc->fscope = dn_match( fc->fdn, &fc->fss->s_base );
459 case LDAP_SCOPE_ONELEVEL: {
461 dnParent( fc->fdn, &pdn );
462 fc->fscope = dn_match( &pdn, &fc->fss->s_base );
464 case LDAP_SCOPE_SUBTREE:
465 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base );
467 case LDAP_SCOPE_SUBORDINATE:
468 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base ) &&
469 !dn_match( fc->fdn, &fc->fss->s_base );
477 /* If entryID has changed, then the base of this search has
478 * changed. Invalidate the psearch.
480 return LDAP_NO_SUCH_OBJECT;
484 * This function has three different purposes, but they all use a search
485 * that filters on entryCSN so they're combined here.
486 * 1: at startup time, after a contextCSN has been read from the database,
487 * we search for all entries with CSN >= contextCSN in case the contextCSN
488 * was not checkpointed at the previous shutdown.
490 * 2: when the current contextCSN is known and we have a sync cookie, we search
491 * for one entry with CSN = the cookie CSN. If not found, try <= cookie CSN.
492 * If an entry is found, the cookie CSN is valid, otherwise it is stale.
494 * 3: during a refresh phase, we search for all entries with CSN <= the cookie
495 * CSN, and generate Present records for them. We always collect this result
496 * in SyncID sets, even if there's only one match.
498 typedef enum find_csn_t {
505 findmax_cb( Operation *op, SlapReply *rs )
507 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
508 struct berval *maxcsn = op->o_callback->sc_private;
509 Attribute *a = attr_find( rs->sr_entry->e_attrs,
510 slap_schema.si_ad_entryCSN );
512 if ( a && ber_bvcmp( &a->a_vals[0], maxcsn ) > 0 &&
513 slap_parse_csn_sid( &a->a_vals[0] ) == slap_serverID ) {
514 maxcsn->bv_len = a->a_vals[0].bv_len;
515 strcpy( maxcsn->bv_val, a->a_vals[0].bv_val );
522 findcsn_cb( Operation *op, SlapReply *rs )
524 slap_callback *sc = op->o_callback;
526 /* We just want to know that at least one exists, so it's OK if
527 * we exceed the unchecked limit.
529 if ( rs->sr_err == LDAP_ADMINLIMIT_EXCEEDED ||
530 (rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS )) {
531 sc->sc_private = (void *)1;
536 /* Build a list of entryUUIDs for sending in a SyncID set */
540 typedef struct fpres_cookie {
547 findpres_cb( Operation *op, SlapReply *rs )
549 slap_callback *sc = op->o_callback;
550 fpres_cookie *pc = sc->sc_private;
552 int ret = SLAP_CB_CONTINUE;
554 switch ( rs->sr_type ) {
556 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
558 pc->uuids[pc->num].bv_val = pc->last;
559 AC_MEMCPY( pc->uuids[pc->num].bv_val, a->a_nvals[0].bv_val,
560 pc->uuids[pc->num].bv_len );
562 pc->last = pc->uuids[pc->num].bv_val;
563 pc->uuids[pc->num].bv_val = NULL;
566 if ( pc->num != SLAP_SYNCUUID_SET_SIZE )
572 ret = syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET, NULL,
574 pc->uuids[pc->num].bv_val = pc->last;
576 pc->last = pc->uuids[0].bv_val;
586 syncprov_findcsn( Operation *op, find_csn_t mode )
588 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
589 syncprov_info_t *si = on->on_bi.bi_private;
591 slap_callback cb = {0};
593 SlapReply frs = { REP_RESULT };
594 char buf[LDAP_PVT_CSNSTR_BUFSIZE + STRLENOF("(entryCSN<=)")];
595 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
596 struct berval maxcsn;
598 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
599 fpres_cookie pcookie;
600 sync_control *srs = NULL;
601 struct slap_limits_set fc_limits;
602 int i, rc = LDAP_SUCCESS, findcsn_retry = 1;
605 if ( mode != FIND_MAXCSN ) {
606 srs = op->o_controls[slap_cids.sc_LDAPsync];
610 fop.o_sync_mode &= SLAP_CONTROL_MASK; /* turn off sync_mode */
611 /* We want pure entries, not referrals */
612 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
615 cf.f_av_desc = slap_schema.si_ad_entryCSN;
616 BER_BVZERO( &cf.f_av_value );
619 fop.o_callback = &cb;
620 fop.ors_limit = NULL;
621 fop.ors_tlimit = SLAP_NO_LIMIT;
622 fop.ors_filter = &cf;
623 fop.ors_filterstr.bv_val = buf;
628 cf.f_choice = LDAP_FILTER_GE;
629 /* If there are multiple CSNs, use the one with our serverID */
630 for ( i=0; i<si->si_numcsns; i++) {
631 if ( slap_serverID == si->si_sids[i] ) {
636 if ( i == si->si_numcsns ) {
637 /* No match: this is multimaster, and none of the content in the DB
638 * originated locally. Treat like no CSN.
640 return LDAP_NO_SUCH_OBJECT;
642 cf.f_av_value = si->si_ctxcsn[maxid];
643 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
644 "(entryCSN>=%s)", cf.f_av_value.bv_val );
645 if ( fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
648 fop.ors_attrsonly = 0;
649 fop.ors_attrs = csn_anlist;
650 fop.ors_slimit = SLAP_NO_LIMIT;
651 cb.sc_private = &maxcsn;
652 cb.sc_response = findmax_cb;
653 strcpy( cbuf, cf.f_av_value.bv_val );
654 maxcsn.bv_val = cbuf;
655 maxcsn.bv_len = cf.f_av_value.bv_len;
658 if ( BER_BVISEMPTY( &cf.f_av_value )) {
659 cf.f_av_value = srs->sr_state.ctxcsn[0];
660 /* If there are multiple CSNs, use the smallest */
661 for ( i=1; i<srs->sr_state.numcsns; i++ ) {
662 if ( ber_bvcmp( &cf.f_av_value, &srs->sr_state.ctxcsn[i] )
664 cf.f_av_value = srs->sr_state.ctxcsn[i];
668 /* Look for exact match the first time */
669 if ( findcsn_retry ) {
670 cf.f_choice = LDAP_FILTER_EQUALITY;
671 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
672 "(entryCSN=%s)", cf.f_av_value.bv_val );
673 /* On retry, look for <= */
675 cf.f_choice = LDAP_FILTER_LE;
676 fop.ors_limit = &fc_limits;
677 memset( &fc_limits, 0, sizeof( fc_limits ));
678 fc_limits.lms_s_unchecked = 1;
679 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
680 "(entryCSN<=%s)", cf.f_av_value.bv_val );
682 if ( fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
685 fop.ors_attrsonly = 1;
686 fop.ors_attrs = slap_anlist_no_attrs;
688 cb.sc_private = NULL;
689 cb.sc_response = findcsn_cb;
692 fop.ors_filter = op->ors_filter;
693 fop.ors_filterstr = op->ors_filterstr;
694 fop.ors_attrsonly = 0;
695 fop.ors_attrs = uuid_anlist;
696 fop.ors_slimit = SLAP_NO_LIMIT;
697 cb.sc_private = &pcookie;
698 cb.sc_response = findpres_cb;
701 /* preallocate storage for a full set */
702 pcookie.uuids = op->o_tmpalloc( (SLAP_SYNCUUID_SET_SIZE+1) *
703 sizeof(struct berval) + SLAP_SYNCUUID_SET_SIZE * UUID_LEN,
705 pcookie.last = (char *)(pcookie.uuids + SLAP_SYNCUUID_SET_SIZE+1);
706 pcookie.uuids[0].bv_val = pcookie.last;
707 pcookie.uuids[0].bv_len = UUID_LEN;
708 for (i=1; i<SLAP_SYNCUUID_SET_SIZE; i++) {
709 pcookie.uuids[i].bv_val = pcookie.uuids[i-1].bv_val + UUID_LEN;
710 pcookie.uuids[i].bv_len = UUID_LEN;
715 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
716 fop.o_bd->be_search( &fop, &frs );
717 fop.o_bd->bd_info = (BackendInfo *)on;
721 if ( ber_bvcmp( &si->si_ctxcsn[maxid], &maxcsn )) {
723 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
724 assert( !syn->ssyn_validate( syn, &maxcsn ));
726 ber_bvreplace( &si->si_ctxcsn[maxid], &maxcsn );
727 si->si_numops++; /* ensure a checkpoint */
731 /* If matching CSN was not found, invalidate the context. */
732 if ( !cb.sc_private ) {
733 /* If we didn't find an exact match, then try for <= */
734 if ( findcsn_retry ) {
738 rc = LDAP_NO_SUCH_OBJECT;
742 op->o_tmpfree( pcookie.uuids, op->o_tmpmemctx );
749 /* Should find a place to cache these */
750 static mutexint *get_mutexint()
752 mutexint *mi = ch_malloc( sizeof( mutexint ));
753 ldap_pvt_thread_mutex_init( &mi->mi_mutex );
758 static void inc_mutexint( mutexint *mi )
760 ldap_pvt_thread_mutex_lock( &mi->mi_mutex );
762 ldap_pvt_thread_mutex_unlock( &mi->mi_mutex );
765 /* return resulting counter */
766 static int dec_mutexint( mutexint *mi )
769 ldap_pvt_thread_mutex_lock( &mi->mi_mutex );
771 ldap_pvt_thread_mutex_unlock( &mi->mi_mutex );
773 ldap_pvt_thread_mutex_destroy( &mi->mi_mutex );
780 syncprov_free_syncop( syncops *so )
782 syncres *sr, *srnext;
783 GroupAssertion *ga, *gnext;
785 ldap_pvt_thread_mutex_lock( &so->s_mutex );
786 /* already being freed, or still in use */
787 if ( !so->s_inuse || --so->s_inuse > 0 ) {
788 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
791 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
792 if ( so->s_flags & PS_IS_DETACHED ) {
793 filter_free( so->s_op->ors_filter );
794 for ( ga = so->s_op->o_groups; ga; ga=gnext ) {
800 ch_free( so->s_base.bv_val );
801 for ( sr=so->s_res; sr; sr=srnext ) {
804 if ( !dec_mutexint( sr->s_e->e_private )) {
805 sr->s_e->e_private = NULL;
806 entry_free( sr->s_e );
811 ldap_pvt_thread_mutex_destroy( &so->s_mutex );
815 /* Send a persistent search response */
817 syncprov_sendresp( Operation *op, opcookie *opc, syncops *so, int mode )
819 slap_overinst *on = opc->son;
821 SlapReply rs = { REP_SEARCH };
822 LDAPControl *ctrls[2];
823 struct berval cookie = BER_BVNULL, csns[2];
825 Attribute a_uuid = {0};
827 if ( so->s_op->o_abandon )
828 return SLAPD_ABANDON;
831 if ( !BER_BVISNULL( &opc->sctxcsn )) {
832 csns[0] = opc->sctxcsn;
833 BER_BVZERO( &csns[1] );
834 slap_compose_sync_cookie( op, &cookie, csns, so->s_rid, slap_serverID ? slap_serverID : -1 );
838 if ( so->s_sid > 0 ) {
839 Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: to=%03x, cookie=%s\n",
840 so->s_sid, cookie.bv_val ? cookie.bv_val : "", 0 );
842 Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: cookie=%s\n",
843 cookie.bv_val ? cookie.bv_val : "", 0, 0 );
847 e_uuid.e_attrs = &a_uuid;
848 a_uuid.a_desc = slap_schema.si_ad_entryUUID;
849 a_uuid.a_nvals = &opc->suuid;
850 rs.sr_err = syncprov_state_ctrl( op, &rs, &e_uuid,
851 mode, ctrls, 0, 1, &cookie );
852 if ( !BER_BVISNULL( &cookie )) {
853 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
857 rs.sr_entry = &e_uuid;
858 if ( mode == LDAP_SYNC_ADD || mode == LDAP_SYNC_MODIFY ) {
860 e_uuid.e_private = NULL;
865 if ( opc->sreference && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
866 rs.sr_ref = get_entry_referrals( op, rs.sr_entry );
867 rs.sr_err = send_search_reference( op, &rs );
868 ber_bvarray_free( rs.sr_ref );
872 case LDAP_SYNC_MODIFY:
873 rs.sr_attrs = op->ors_attrs;
874 rs.sr_err = send_search_entry( op, &rs );
876 case LDAP_SYNC_DELETE:
877 e_uuid.e_attrs = NULL;
878 e_uuid.e_name = opc->sdn;
879 e_uuid.e_nname = opc->sndn;
880 if ( opc->sreference && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
881 struct berval bv = BER_BVNULL;
883 rs.sr_err = send_search_reference( op, &rs );
885 rs.sr_err = send_search_entry( op, &rs );
891 /* In case someone else freed it already? */
894 for ( i=0; rs.sr_ctrls[i]; i++ ) {
895 if ( rs.sr_ctrls[i] == ctrls[0] ) {
896 op->o_tmpfree( ctrls[0]->ldctl_value.bv_val, op->o_tmpmemctx );
897 ctrls[0]->ldctl_value.bv_val = NULL;
908 syncprov_qstart( syncops *so );
910 /* Play back queued responses */
912 syncprov_qplay( Operation *op, syncops *so )
914 slap_overinst *on = LDAP_SLIST_FIRST(&so->s_op->o_extra)->oe_key;
923 ldap_pvt_thread_mutex_lock( &so->s_mutex );
926 so->s_res = sr->s_next;
928 so->s_restail = NULL;
929 /* Exit loop with mutex held */
930 if ( !sr || so->s_op->o_abandon )
932 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
934 if ( sr->s_mode == LDAP_SYNC_NEW_COOKIE ) {
935 SlapReply rs = { REP_INTERMEDIATE };
937 rc = syncprov_sendinfo( op, &rs, LDAP_TAG_SYNC_NEW_COOKIE,
938 &sr->s_csn, 0, NULL, 0 );
941 opc.sndn = sr->s_ndn;
942 opc.suuid = sr->s_uuid;
943 opc.sctxcsn = sr->s_csn;
944 opc.sreference = sr->s_isreference;
947 rc = syncprov_sendresp( op, &opc, so, sr->s_mode );
951 if ( !dec_mutexint( sr->s_e->e_private )) {
952 sr->s_e->e_private = NULL;
953 entry_free ( sr->s_e );
959 /* Exit loop with mutex held */
960 ldap_pvt_thread_mutex_lock( &so->s_mutex );
964 /* We now only send one change at a time, to prevent one
965 * psearch from hogging all the CPU. Resubmit this task if
966 * there are more responses queued and no errors occurred.
969 if ( rc == 0 && so->s_res ) {
970 syncprov_qstart( so );
972 so->s_flags ^= PS_TASK_QUEUED;
975 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
979 /* task for playing back queued responses */
981 syncprov_qtask( void *ctx, void *arg )
984 OperationBuffer opbuf;
991 op->o_hdr = &opbuf.ob_hdr;
992 op->o_controls = opbuf.ob_controls;
993 memset( op->o_controls, 0, sizeof(opbuf.ob_controls) );
995 *op->o_hdr = *so->s_op->o_hdr;
997 op->o_tmpmemctx = slap_sl_mem_create(SLAP_SLAB_SIZE, SLAP_SLAB_STACK, ctx, 1);
998 op->o_tmpmfuncs = &slap_sl_mfuncs;
999 op->o_threadctx = ctx;
1001 /* syncprov_qplay expects a fake db */
1002 be = *so->s_op->o_bd;
1003 be.be_flags |= SLAP_DBFLAG_OVERLAY;
1005 LDAP_SLIST_FIRST(&op->o_extra) = NULL;
1006 op->o_callback = NULL;
1008 rc = syncprov_qplay( op, so );
1010 /* decrement use count... */
1011 syncprov_free_syncop( so );
1016 /* Start the task to play back queued psearch responses */
1018 syncprov_qstart( syncops *so )
1020 so->s_flags |= PS_TASK_QUEUED;
1022 ldap_pvt_thread_pool_submit( &connection_pool,
1023 syncprov_qtask, so );
1026 /* Queue a persistent search response */
1028 syncprov_qresp( opcookie *opc, syncops *so, int mode )
1032 struct berval cookie = opc->sctxcsn;
1034 if ( mode == LDAP_SYNC_NEW_COOKIE ) {
1035 syncprov_info_t *si = opc->son->on_bi.bi_private;
1037 slap_compose_sync_cookie( NULL, &cookie, si->si_ctxcsn,
1038 so->s_rid, slap_serverID ? slap_serverID : -1);
1041 srsize = sizeof(syncres) + opc->suuid.bv_len + 1 +
1042 opc->sdn.bv_len + 1 + opc->sndn.bv_len + 1;
1043 if ( cookie.bv_len )
1044 srsize += cookie.bv_len + 1;
1045 sr = ch_malloc( srsize );
1048 /* bump refcount on this entry */
1050 inc_mutexint( opc->se->e_private );
1051 sr->s_dn.bv_val = (char *)(sr + 1);
1052 sr->s_dn.bv_len = opc->sdn.bv_len;
1054 sr->s_isreference = opc->sreference;
1055 sr->s_ndn.bv_val = lutil_strcopy( sr->s_dn.bv_val,
1056 opc->sdn.bv_val ) + 1;
1057 sr->s_ndn.bv_len = opc->sndn.bv_len;
1058 sr->s_uuid.bv_val = lutil_strcopy( sr->s_ndn.bv_val,
1059 opc->sndn.bv_val ) + 1;
1060 sr->s_uuid.bv_len = opc->suuid.bv_len;
1061 AC_MEMCPY( sr->s_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1062 if ( cookie.bv_len ) {
1063 sr->s_csn.bv_val = sr->s_uuid.bv_val + sr->s_uuid.bv_len + 1;
1064 strcpy( sr->s_csn.bv_val, cookie.bv_val );
1066 sr->s_csn.bv_val = NULL;
1068 sr->s_csn.bv_len = cookie.bv_len;
1070 if ( mode == LDAP_SYNC_NEW_COOKIE && cookie.bv_val ) {
1071 ch_free( cookie.bv_val );
1074 ldap_pvt_thread_mutex_lock( &so->s_mutex );
1078 so->s_restail->s_next = sr;
1082 /* If the base of the psearch was modified, check it next time round */
1083 if ( so->s_flags & PS_WROTE_BASE ) {
1084 so->s_flags ^= PS_WROTE_BASE;
1085 so->s_flags |= PS_FIND_BASE;
1087 if (( so->s_flags & (PS_IS_DETACHED|PS_TASK_QUEUED)) == PS_IS_DETACHED ) {
1088 syncprov_qstart( so );
1090 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
1091 return LDAP_SUCCESS;
1095 syncprov_drop_psearch( syncops *so, int lock )
1097 if ( so->s_flags & PS_IS_DETACHED ) {
1099 ldap_pvt_thread_mutex_lock( &so->s_op->o_conn->c_mutex );
1100 so->s_op->o_conn->c_n_ops_executing--;
1101 so->s_op->o_conn->c_n_ops_completed++;
1102 LDAP_STAILQ_REMOVE( &so->s_op->o_conn->c_ops, so->s_op, Operation,
1105 ldap_pvt_thread_mutex_unlock( &so->s_op->o_conn->c_mutex );
1107 syncprov_free_syncop( so );
1113 syncprov_ab_cleanup( Operation *op, SlapReply *rs )
1115 slap_callback *sc = op->o_callback;
1116 op->o_callback = sc->sc_next;
1117 syncprov_drop_psearch( op->o_callback->sc_private, 0 );
1118 op->o_tmpfree( sc, op->o_tmpmemctx );
1123 syncprov_op_abandon( Operation *op, SlapReply *rs )
1125 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1126 syncprov_info_t *si = on->on_bi.bi_private;
1127 syncops *so, *soprev;
1129 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1130 for ( so=si->si_ops, soprev = (syncops *)&si->si_ops; so;
1131 soprev=so, so=so->s_next ) {
1132 if ( so->s_op->o_connid == op->o_connid &&
1133 so->s_op->o_msgid == op->orn_msgid ) {
1134 so->s_op->o_abandon = 1;
1135 soprev->s_next = so->s_next;
1139 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1141 /* Is this really a Cancel exop? */
1142 if ( op->o_tag != LDAP_REQ_ABANDON ) {
1143 so->s_op->o_cancel = SLAP_CANCEL_ACK;
1144 rs->sr_err = LDAP_CANCELLED;
1145 send_ldap_result( so->s_op, rs );
1146 if ( so->s_flags & PS_IS_DETACHED ) {
1148 cb = op->o_tmpcalloc( 1, sizeof(slap_callback), op->o_tmpmemctx );
1149 cb->sc_cleanup = syncprov_ab_cleanup;
1150 cb->sc_next = op->o_callback;
1151 cb->sc_private = so;
1152 return SLAP_CB_CONTINUE;
1155 syncprov_drop_psearch( so, 0 );
1157 return SLAP_CB_CONTINUE;
1160 /* Find which persistent searches are affected by this operation */
1162 syncprov_matchops( Operation *op, opcookie *opc, int saveit )
1164 slap_overinst *on = opc->son;
1165 syncprov_info_t *si = on->on_bi.bi_private;
1168 syncops *ss, *sprev, *snext;
1172 struct berval newdn;
1174 BackendDB *b0 = op->o_bd, db;
1176 fc.fdn = &op->o_req_ndn;
1177 /* compute new DN */
1178 if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1180 if ( op->orr_nnewSup ) pdn = *op->orr_nnewSup;
1181 else dnParent( fc.fdn, &pdn );
1182 build_new_dn( &newdn, &pdn, &op->orr_nnewrdn, op->o_tmpmemctx );
1186 if ( op->o_tag != LDAP_REQ_ADD ) {
1187 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1191 rc = overlay_entry_get_ov( op, fc.fdn, NULL, NULL, 0, &e, on );
1192 /* If we're sending responses now, make a copy and unlock the DB */
1193 if ( e && !saveit ) {
1195 opc->se = entry_dup( e );
1196 opc->se->e_private = get_mutexint();
1198 overlay_entry_release_ov( op, e, 0, on );
1209 opc->se = entry_dup( e );
1210 opc->se->e_private = get_mutexint();
1216 if ( saveit || op->o_tag == LDAP_REQ_ADD ) {
1217 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1218 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1219 opc->sreference = is_entry_referral( e );
1220 a = attr_find( e->e_attrs, slap_schema.si_ad_entryUUID );
1222 ber_dupbv_x( &opc->suuid, &a->a_nvals[0], op->o_tmpmemctx );
1223 } else if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1224 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1225 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1226 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1227 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1230 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1231 for (ss = si->si_ops, sprev = (syncops *)&si->si_ops; ss;
1232 sprev = ss, ss=snext)
1240 if ( ss->s_op->o_abandon )
1243 /* Don't send ops back to the originator */
1244 if ( opc->osid > 0 && opc->osid == ss->s_sid ) {
1245 Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping original sid %03x\n",
1250 /* Don't send ops back to the messenger */
1251 if ( opc->rsid > 0 && opc->rsid == ss->s_sid ) {
1252 Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping relayed sid %03x\n",
1262 /* If the base of the search is missing, signal a refresh */
1263 rc = syncprov_findbase( op, &fc );
1264 if ( rc != LDAP_SUCCESS ) {
1265 SlapReply rs = {REP_RESULT};
1266 send_ldap_error( ss->s_op, &rs, LDAP_SYNC_REFRESH_REQUIRED,
1267 "search base has changed" );
1268 sprev->s_next = snext;
1269 syncprov_drop_psearch( ss, 1 );
1274 /* If we're sending results now, look for this op in old matches */
1278 /* Did we modify the search base? */
1279 if ( dn_match( &op->o_req_ndn, &ss->s_base )) {
1280 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1281 ss->s_flags |= PS_WROTE_BASE;
1282 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1285 for ( sm=opc->smatches, old=(syncmatches *)&opc->smatches; sm;
1286 old=sm, sm=sm->sm_next ) {
1287 if ( sm->sm_op == ss ) {
1289 old->sm_next = sm->sm_next;
1290 op->o_tmpfree( sm, op->o_tmpmemctx );
1299 oh.oh_conn = ss->s_op->o_conn;
1300 oh.oh_connid = ss->s_op->o_connid;
1301 op2.o_bd = op->o_bd->bd_self;
1303 op2.o_extra = op->o_extra;
1304 op2.o_callback = NULL;
1305 rc = test_filter( &op2, e, ss->s_op->ors_filter );
1308 Debug( LDAP_DEBUG_TRACE, "syncprov_matchops: sid %03x fscope %d rc %d\n",
1309 ss->s_sid, fc.fscope, rc );
1311 /* check if current o_req_dn is in scope and matches filter */
1312 if ( fc.fscope && rc == LDAP_COMPARE_TRUE ) {
1314 sm = op->o_tmpalloc( sizeof(syncmatches), op->o_tmpmemctx );
1315 sm->sm_next = opc->smatches;
1317 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1319 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1322 /* if found send UPDATE else send ADD */
1323 syncprov_qresp( opc, ss,
1324 found ? LDAP_SYNC_MODIFY : LDAP_SYNC_ADD );
1326 } else if ( !saveit && found ) {
1328 syncprov_qresp( opc, ss, LDAP_SYNC_DELETE );
1329 } else if ( !saveit ) {
1330 syncprov_qresp( opc, ss, LDAP_SYNC_NEW_COOKIE );
1332 if ( !saveit && found ) {
1333 /* Decrement s_inuse, was incremented when called
1334 * with saveit == TRUE
1336 syncprov_free_syncop( ss );
1339 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1341 if ( op->o_tag != LDAP_REQ_ADD && e ) {
1342 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1346 overlay_entry_release_ov( op, e, 0, on );
1349 if ( opc->se && !saveit ) {
1350 if ( !dec_mutexint( opc->se->e_private )) {
1351 opc->se->e_private = NULL;
1352 entry_free( opc->se );
1357 op->o_tmpfree( fc.fdn->bv_val, op->o_tmpmemctx );
1363 syncprov_op_cleanup( Operation *op, SlapReply *rs )
1365 slap_callback *cb = op->o_callback;
1366 opcookie *opc = cb->sc_private;
1367 slap_overinst *on = opc->son;
1368 syncprov_info_t *si = on->on_bi.bi_private;
1369 syncmatches *sm, *snext;
1370 modtarget *mt, mtdummy;
1372 for (sm = opc->smatches; sm; sm=snext) {
1373 snext = sm->sm_next;
1374 syncprov_free_syncop( sm->sm_op );
1375 op->o_tmpfree( sm, op->o_tmpmemctx );
1378 /* Remove op from lock table */
1381 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1382 mt->mt_mods = mt->mt_mods->mi_next;
1383 /* If there are more, promote the next one */
1384 if ( mt->mt_mods ) {
1385 mt->mt_op = mt->mt_mods->mi_op;
1386 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1388 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1389 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1390 avl_delete( &si->si_mods, mt, sp_avl_cmp );
1391 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1392 ldap_pvt_thread_mutex_destroy( &mt->mt_mutex );
1396 if ( !BER_BVISNULL( &opc->suuid ))
1397 op->o_tmpfree( opc->suuid.bv_val, op->o_tmpmemctx );
1398 if ( !BER_BVISNULL( &opc->sndn ))
1399 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1400 if ( !BER_BVISNULL( &opc->sdn ))
1401 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1402 op->o_callback = cb->sc_next;
1403 op->o_tmpfree(cb, op->o_tmpmemctx);
1409 syncprov_checkpoint( Operation *op, SlapReply *rs, slap_overinst *on )
1411 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
1414 SlapReply rsm = { 0 };
1415 slap_callback cb = {0};
1419 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1422 for ( i=0; i<si->si_numcsns; i++ ) {
1423 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1426 mod.sml_numvals = si->si_numcsns;
1427 mod.sml_values = si->si_ctxcsn;
1428 mod.sml_nvalues = NULL;
1429 mod.sml_desc = slap_schema.si_ad_contextCSN;
1430 mod.sml_op = LDAP_MOD_REPLACE;
1431 mod.sml_flags = SLAP_MOD_INTERNAL;
1432 mod.sml_next = NULL;
1434 cb.sc_response = slap_null_cb;
1436 opm.o_tag = LDAP_REQ_MODIFY;
1437 opm.o_callback = &cb;
1438 opm.orm_modlist = &mod;
1439 opm.orm_no_opattrs = 1;
1440 if ( SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1441 be = *on->on_info->oi_origdb;
1444 opm.o_req_dn = si->si_contextdn;
1445 opm.o_req_ndn = si->si_contextdn;
1446 opm.o_bd->bd_info = on->on_info->oi_orig;
1447 opm.o_managedsait = SLAP_CONTROL_NONCRITICAL;
1448 opm.o_no_schema_check = 1;
1449 opm.o_bd->be_modify( &opm, &rsm );
1451 if ( rsm.sr_err == LDAP_NO_SUCH_OBJECT &&
1452 SLAP_SYNC_SUBENTRY( opm.o_bd )) {
1454 char txtbuf[SLAP_TEXT_BUFLEN];
1455 size_t textlen = sizeof txtbuf;
1456 Entry *e = slap_create_context_csn_entry( opm.o_bd, NULL );
1457 slap_mods2entry( &mod, &e, 0, 1, &text, txtbuf, textlen);
1459 opm.o_bd->be_add( &opm, &rsm );
1460 if ( e == opm.ora_e )
1461 be_entry_release_w( &opm, opm.ora_e );
1464 if ( mod.sml_next != NULL ) {
1465 slap_mods_free( mod.sml_next, 1 );
1468 for ( i=0; i<si->si_numcsns; i++ ) {
1469 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1475 syncprov_add_slog( Operation *op )
1477 opcookie *opc = op->o_callback->sc_private;
1478 slap_overinst *on = opc->son;
1479 syncprov_info_t *si = on->on_bi.bi_private;
1485 /* Allocate a record. UUIDs are not NUL-terminated. */
1486 se = ch_malloc( sizeof( slog_entry ) + opc->suuid.bv_len +
1487 op->o_csn.bv_len + 1 );
1489 se->se_tag = op->o_tag;
1491 se->se_uuid.bv_val = (char *)(&se[1]);
1492 AC_MEMCPY( se->se_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1493 se->se_uuid.bv_len = opc->suuid.bv_len;
1495 se->se_csn.bv_val = se->se_uuid.bv_val + opc->suuid.bv_len;
1496 AC_MEMCPY( se->se_csn.bv_val, op->o_csn.bv_val, op->o_csn.bv_len );
1497 se->se_csn.bv_val[op->o_csn.bv_len] = '\0';
1498 se->se_csn.bv_len = op->o_csn.bv_len;
1499 se->se_sid = slap_parse_csn_sid( &se->se_csn );
1501 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1502 if ( sl->sl_head ) {
1503 sl->sl_tail->se_next = se;
1509 while ( sl->sl_num > sl->sl_size ) {
1511 sl->sl_head = se->se_next;
1512 strcpy( sl->sl_mincsn.bv_val, se->se_csn.bv_val );
1513 sl->sl_mincsn.bv_len = se->se_csn.bv_len;
1517 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1521 /* Just set a flag if we found the matching entry */
1523 playlog_cb( Operation *op, SlapReply *rs )
1525 if ( rs->sr_type == REP_SEARCH ) {
1526 op->o_callback->sc_private = (void *)1;
1531 /* enter with sl->sl_mutex locked, release before returning */
1533 syncprov_playlog( Operation *op, SlapReply *rs, sessionlog *sl,
1534 sync_control *srs, BerVarray ctxcsn, int numcsns, int *sids )
1536 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1538 int i, j, ndel, num, nmods, mmods;
1539 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
1541 struct berval delcsn[2];
1543 if ( !sl->sl_num ) {
1544 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1552 uuids = op->o_tmpalloc( (num+1) * sizeof( struct berval ) +
1553 num * UUID_LEN, op->o_tmpmemctx );
1554 uuids[0].bv_val = (char *)(uuids + num + 1);
1556 delcsn[0].bv_len = 0;
1557 delcsn[0].bv_val = cbuf;
1558 BER_BVZERO(&delcsn[1]);
1560 /* Make a copy of the relevant UUIDs. Put the Deletes up front
1561 * and everything else at the end. Do this first so we can
1562 * unlock the list mutex.
1564 Debug( LDAP_DEBUG_SYNC, "srs csn %s\n",
1565 srs->sr_state.ctxcsn[0].bv_val, 0, 0 );
1566 for ( se=sl->sl_head; se; se=se->se_next ) {
1568 Debug( LDAP_DEBUG_SYNC, "log csn %s\n", se->se_csn.bv_val, 0, 0 );
1570 for ( k=0; k<srs->sr_state.numcsns; k++ ) {
1571 if ( se->se_sid == srs->sr_state.sids[k] ) {
1572 ndel = ber_bvcmp( &se->se_csn, &srs->sr_state.ctxcsn[k] );
1577 Debug( LDAP_DEBUG_SYNC, "cmp %d, too old\n", ndel, 0, 0 );
1581 for ( k=0; k<numcsns; k++ ) {
1582 if ( se->se_sid == sids[k] ) {
1583 ndel = ber_bvcmp( &se->se_csn, &ctxcsn[k] );
1588 Debug( LDAP_DEBUG_SYNC, "cmp %d, too new\n", ndel, 0, 0 );
1591 if ( se->se_tag == LDAP_REQ_DELETE ) {
1594 AC_MEMCPY( cbuf, se->se_csn.bv_val, se->se_csn.bv_len );
1595 delcsn[0].bv_len = se->se_csn.bv_len;
1596 delcsn[0].bv_val[delcsn[0].bv_len] = '\0';
1601 uuids[j].bv_val = uuids[0].bv_val + (j * UUID_LEN);
1602 AC_MEMCPY(uuids[j].bv_val, se->se_uuid.bv_val, UUID_LEN);
1603 uuids[j].bv_len = UUID_LEN;
1605 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1609 /* Zero out unused slots */
1610 for ( i=ndel; i < num - nmods; i++ )
1611 uuids[i].bv_len = 0;
1613 /* Mods must be validated to see if they belong in this delete set.
1617 /* Strip any duplicates */
1618 for ( i=0; i<nmods; i++ ) {
1619 for ( j=0; j<ndel; j++ ) {
1620 if ( bvmatch( &uuids[j], &uuids[num - 1 - i] )) {
1621 uuids[num - 1 - i].bv_len = 0;
1626 if ( uuids[num - 1 - i].bv_len == 0 ) continue;
1627 for ( j=0; j<i; j++ ) {
1628 if ( bvmatch( &uuids[num - 1 - j], &uuids[num - 1 - i] )) {
1629 uuids[num - 1 - i].bv_len = 0;
1638 SlapReply frs = { REP_RESULT };
1641 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
1642 slap_callback cb = {0};
1646 fop.o_sync_mode = 0;
1647 fop.o_callback = &cb;
1648 fop.ors_limit = NULL;
1649 fop.ors_tlimit = SLAP_NO_LIMIT;
1650 fop.ors_attrs = slap_anlist_all_attributes;
1651 fop.ors_attrsonly = 0;
1652 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
1654 af.f_choice = LDAP_FILTER_AND;
1657 mf.f_choice = LDAP_FILTER_EQUALITY;
1659 mf.f_av_desc = slap_schema.si_ad_entryUUID;
1660 mf.f_next = fop.ors_filter;
1662 fop.ors_filter = ⁡
1664 cb.sc_response = playlog_cb;
1665 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
1667 for ( i=ndel; i<num; i++ ) {
1668 if ( uuids[i].bv_len == 0 ) continue;
1670 mf.f_av_value = uuids[i];
1671 cb.sc_private = NULL;
1673 frs.sr_nentries = 0;
1674 rc = fop.o_bd->be_search( &fop, &frs );
1676 /* If entry was not found, add to delete list */
1677 if ( !cb.sc_private ) {
1678 uuids[ndel++] = uuids[i];
1681 fop.o_bd->bd_info = (BackendInfo *)on;
1684 struct berval cookie;
1686 if ( delcsn[0].bv_len ) {
1687 slap_compose_sync_cookie( op, &cookie, delcsn, srs->sr_state.rid,
1688 slap_serverID ? slap_serverID : -1 );
1690 Debug( LDAP_DEBUG_SYNC, "syncprov_playlog: cookie=%s\n", cookie.bv_val, 0, 0 );
1693 uuids[ndel].bv_val = NULL;
1694 syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET,
1695 delcsn[0].bv_len ? &cookie : NULL, 0, uuids, 1 );
1696 if ( delcsn[0].bv_len ) {
1697 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
1700 op->o_tmpfree( uuids, op->o_tmpmemctx );
1704 syncprov_op_response( Operation *op, SlapReply *rs )
1706 opcookie *opc = op->o_callback->sc_private;
1707 slap_overinst *on = opc->son;
1708 syncprov_info_t *si = on->on_bi.bi_private;
1711 if ( rs->sr_err == LDAP_SUCCESS )
1713 struct berval maxcsn;
1714 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
1715 int do_check = 0, have_psearches, foundit, csn_changed = 0;
1717 ldap_pvt_thread_mutex_lock( &si->si_resp_mutex );
1719 /* Update our context CSN */
1721 maxcsn.bv_val = cbuf;
1722 maxcsn.bv_len = sizeof(cbuf);
1723 ldap_pvt_thread_rdwr_wlock( &si->si_csn_rwlock );
1725 slap_get_commit_csn( op, &maxcsn, &foundit );
1726 if ( BER_BVISEMPTY( &maxcsn ) && SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1727 /* syncrepl queues the CSN values in the db where
1728 * it is configured , not where the changes are made.
1729 * So look for a value in the glue db if we didn't
1730 * find any in this db.
1732 BackendDB *be = op->o_bd;
1733 op->o_bd = select_backend( &be->be_nsuffix[0], 1);
1734 maxcsn.bv_val = cbuf;
1735 maxcsn.bv_len = sizeof(cbuf);
1736 slap_get_commit_csn( op, &maxcsn, &foundit );
1739 if ( !BER_BVISEMPTY( &maxcsn ) ) {
1742 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1743 assert( !syn->ssyn_validate( syn, &maxcsn ));
1745 sid = slap_parse_csn_sid( &maxcsn );
1746 for ( i=0; i<si->si_numcsns; i++ ) {
1747 if ( sid == si->si_sids[i] ) {
1748 if ( ber_bvcmp( &maxcsn, &si->si_ctxcsn[i] ) > 0 ) {
1749 ber_bvreplace( &si->si_ctxcsn[i], &maxcsn );
1755 /* It's a new SID for us */
1756 if ( i == si->si_numcsns ) {
1757 value_add_one( &si->si_ctxcsn, &maxcsn );
1760 si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
1762 si->si_sids[i] = sid;
1766 /* Don't do any processing for consumer contextCSN updates */
1767 if ( op->o_dont_replicate ) {
1768 if ( op->o_tag == LDAP_REQ_MODIFY &&
1769 op->orm_modlist->sml_op == LDAP_MOD_REPLACE &&
1770 op->orm_modlist->sml_desc == slap_schema.si_ad_contextCSN ) {
1771 /* Catch contextCSN updates from syncrepl. We have to look at
1772 * all the attribute values, as there may be more than one csn
1773 * that changed, and only one can be passed in the csn queue.
1775 Modifications *mod = op->orm_modlist;
1778 for ( i=0; i<mod->sml_numvals; i++ ) {
1779 sid = slap_parse_csn_sid( &mod->sml_values[i] );
1780 for ( j=0; j<si->si_numcsns; j++ ) {
1781 if ( sid == si->si_sids[j] ) {
1782 if ( ber_bvcmp( &mod->sml_values[i], &si->si_ctxcsn[j] ) > 0 ) {
1783 ber_bvreplace( &si->si_ctxcsn[j], &mod->sml_values[i] );
1790 if ( j == si->si_numcsns ) {
1791 value_add_one( &si->si_ctxcsn, &mod->sml_values[i] );
1793 si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
1795 si->si_sids[j] = sid;
1799 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1801 if ( csn_changed ) {
1802 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1803 have_psearches = ( si->si_ops != NULL );
1804 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1806 if ( have_psearches ) {
1807 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1808 if ( sm->sm_op->s_op->o_abandon )
1810 syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_NEW_COOKIE );
1815 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1821 if ( si->si_chkops || si->si_chktime ) {
1822 /* Never checkpoint adding the context entry,
1825 if ( op->o_tag != LDAP_REQ_ADD ||
1826 !dn_match( &op->o_req_ndn, &si->si_contextdn )) {
1827 if ( si->si_chkops && si->si_numops >= si->si_chkops ) {
1831 if ( si->si_chktime &&
1832 (op->o_time - si->si_chklast >= si->si_chktime )) {
1833 if ( si->si_chklast ) {
1835 si->si_chklast = op->o_time;
1842 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1845 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1846 syncprov_checkpoint( op, rs, on );
1847 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1850 /* only update consumer ctx if this is a newer csn */
1851 if ( csn_changed ) {
1852 opc->sctxcsn = maxcsn;
1855 /* Handle any persistent searches */
1856 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1857 have_psearches = ( si->si_ops != NULL );
1858 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1859 if ( have_psearches ) {
1862 case LDAP_REQ_MODIFY:
1863 case LDAP_REQ_MODRDN:
1864 case LDAP_REQ_EXTENDED:
1865 syncprov_matchops( op, opc, 0 );
1867 case LDAP_REQ_DELETE:
1868 /* for each match in opc->smatches:
1871 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1872 if ( sm->sm_op->s_op->o_abandon )
1874 syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_DELETE );
1880 /* Add any log records */
1881 if ( si->si_logs && op->o_tag != LDAP_REQ_ADD ) {
1882 syncprov_add_slog( op );
1884 leave: ldap_pvt_thread_mutex_unlock( &si->si_resp_mutex );
1886 return SLAP_CB_CONTINUE;
1889 /* We don't use a subentry to store the context CSN any more.
1890 * We expose the current context CSN as an operational attribute
1891 * of the suffix entry.
1894 syncprov_op_compare( Operation *op, SlapReply *rs )
1896 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1897 syncprov_info_t *si = on->on_bi.bi_private;
1898 int rc = SLAP_CB_CONTINUE;
1900 if ( dn_match( &op->o_req_ndn, &si->si_contextdn ) &&
1901 op->oq_compare.rs_ava->aa_desc == slap_schema.si_ad_contextCSN )
1906 e.e_name = si->si_contextdn;
1907 e.e_nname = si->si_contextdn;
1910 a.a_desc = slap_schema.si_ad_contextCSN;
1912 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1914 a.a_vals = si->si_ctxcsn;
1915 a.a_nvals = a.a_vals;
1916 a.a_numvals = si->si_numcsns;
1918 rs->sr_err = access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc,
1919 &op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL );
1920 if ( ! rs->sr_err ) {
1921 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1922 goto return_results;
1925 if ( get_assert( op ) &&
1926 ( test_filter( op, &e, get_assertion( op ) ) != LDAP_COMPARE_TRUE ) )
1928 rs->sr_err = LDAP_ASSERTION_FAILED;
1929 goto return_results;
1933 rs->sr_err = LDAP_COMPARE_FALSE;
1935 if ( attr_valfind( &a,
1936 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
1937 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
1938 &op->oq_compare.rs_ava->aa_value, NULL, op->o_tmpmemctx ) == 0 )
1940 rs->sr_err = LDAP_COMPARE_TRUE;
1945 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1947 send_ldap_result( op, rs );
1949 if( rs->sr_err == LDAP_COMPARE_FALSE || rs->sr_err == LDAP_COMPARE_TRUE ) {
1950 rs->sr_err = LDAP_SUCCESS;
1959 syncprov_op_mod( Operation *op, SlapReply *rs )
1961 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1962 syncprov_info_t *si = on->on_bi.bi_private;
1965 int have_psearches, cbsize;
1967 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1968 have_psearches = ( si->si_ops != NULL );
1969 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1971 cbsize = sizeof(slap_callback) + sizeof(opcookie) +
1972 (have_psearches ? sizeof(modinst) : 0 );
1974 cb = op->o_tmpcalloc(1, cbsize, op->o_tmpmemctx);
1975 opc = (opcookie *)(cb+1);
1977 cb->sc_response = syncprov_op_response;
1978 cb->sc_cleanup = syncprov_op_cleanup;
1979 cb->sc_private = opc;
1980 cb->sc_next = op->o_callback;
1981 op->o_callback = cb;
1985 if ( op->o_csn.bv_val ) {
1986 opc->osid = slap_parse_csn_sid( &op->o_csn );
1988 if ( op->o_controls ) {
1989 struct sync_cookie *scook =
1990 op->o_controls[slap_cids.sc_LDAPsync];
1992 opc->rsid = scook->sid;
1995 /* If there are active persistent searches, lock this operation.
1996 * See seqmod.c for the locking logic on its own.
1998 if ( have_psearches ) {
1999 modtarget *mt, mtdummy;
2002 mi = (modinst *)(opc+1);
2005 /* See if we're already modifying this entry... */
2007 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
2008 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
2010 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
2011 if ( mt->mt_mods == NULL ) {
2012 /* Cannot reuse this mt, as another thread is about
2013 * to release it in syncprov_op_cleanup.
2015 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2020 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
2021 mt->mt_tail->mi_next = mi;
2023 /* wait for this op to get to head of list */
2024 while ( mt->mt_mods != mi ) {
2025 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2026 /* FIXME: if dynamic config can delete overlays or
2027 * databases we'll have to check for cleanup here.
2028 * Currently it's not an issue because there are
2029 * no dynamic config deletes...
2031 if ( slapd_shutdown )
2032 return SLAPD_ABANDON;
2034 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
2035 ldap_pvt_thread_yield();
2036 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
2038 /* clean up if the caller is giving up */
2039 if ( op->o_abandon ) {
2041 for ( m2 = mt->mt_mods; m2->mi_next != mi;
2043 m2->mi_next = mi->mi_next;
2044 if ( mt->mt_tail == mi ) mt->mt_tail = m2;
2045 op->o_tmpfree( cb, op->o_tmpmemctx );
2046 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2047 return SLAPD_ABANDON;
2050 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2052 /* Record that we're modifying this entry now */
2053 mt = ch_malloc( sizeof(modtarget) );
2056 mt->mt_op = mi->mi_op;
2057 ldap_pvt_thread_mutex_init( &mt->mt_mutex );
2058 avl_insert( &si->si_mods, mt, sp_avl_cmp, avl_dup_error );
2059 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
2064 if (( have_psearches || si->si_logs ) && op->o_tag != LDAP_REQ_ADD )
2065 syncprov_matchops( op, opc, 1 );
2067 return SLAP_CB_CONTINUE;
2071 syncprov_op_extended( Operation *op, SlapReply *rs )
2073 if ( exop_is_write( op ))
2074 return syncprov_op_mod( op, rs );
2076 return SLAP_CB_CONTINUE;
2079 typedef struct searchstate {
2080 slap_overinst *ss_on;
2082 BerVarray ss_ctxcsn;
2085 #define SS_PRESENT 0x01
2086 #define SS_CHANGED 0x02
2091 syncprov_search_cleanup( Operation *op, SlapReply *rs )
2093 if ( rs->sr_ctrls ) {
2094 op->o_tmpfree( rs->sr_ctrls[0], op->o_tmpmemctx );
2095 op->o_tmpfree( rs->sr_ctrls, op->o_tmpmemctx );
2096 rs->sr_ctrls = NULL;
2101 typedef struct SyncOperationBuffer {
2105 AttributeName sob_extra; /* not always present */
2106 /* Further data allocated here */
2107 } SyncOperationBuffer;
2110 syncprov_detach_op( Operation *op, syncops *so, slap_overinst *on )
2112 SyncOperationBuffer *sopbuf2;
2117 GroupAssertion *g1, *g2;
2119 /* count the search attrs */
2120 for (i=0; op->ors_attrs && !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2121 alen += op->ors_attrs[i].an_name.bv_len + 1;
2123 /* Make a new copy of the operation */
2124 size = offsetof( SyncOperationBuffer, sob_extra ) +
2125 (i ? ( (i+1) * sizeof(AttributeName) + alen) : 0) +
2126 op->o_req_dn.bv_len + 1 +
2127 op->o_req_ndn.bv_len + 1 +
2128 op->o_ndn.bv_len + 1 +
2129 so->s_filterstr.bv_len + 1;
2130 sopbuf2 = ch_calloc( 1, size );
2131 op2 = &sopbuf2->sob_op;
2132 op2->o_hdr = &sopbuf2->sob_hdr;
2133 LDAP_SLIST_FIRST(&op2->o_extra) = &sopbuf2->sob_oe;
2135 /* Copy the fields we care about explicitly, leave the rest alone */
2136 *op2->o_hdr = *op->o_hdr;
2137 op2->o_tag = op->o_tag;
2138 op2->o_time = op->o_time;
2139 op2->o_bd = on->on_info->oi_origdb;
2140 op2->o_request = op->o_request;
2141 op2->o_managedsait = op->o_managedsait;
2142 LDAP_SLIST_FIRST(&op2->o_extra)->oe_key = on;
2143 LDAP_SLIST_NEXT(LDAP_SLIST_FIRST(&op2->o_extra), oe_next) = NULL;
2145 ptr = (char *) sopbuf2 + offsetof( SyncOperationBuffer, sob_extra );
2147 op2->ors_attrs = (AttributeName *) ptr;
2148 ptr = (char *) &op2->ors_attrs[i+1];
2149 for (i=0; !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2150 op2->ors_attrs[i] = op->ors_attrs[i];
2151 op2->ors_attrs[i].an_name.bv_val = ptr;
2152 ptr = lutil_strcopy( ptr, op->ors_attrs[i].an_name.bv_val ) + 1;
2154 BER_BVZERO( &op2->ors_attrs[i].an_name );
2157 op2->o_authz = op->o_authz;
2158 op2->o_ndn.bv_val = ptr;
2159 ptr = lutil_strcopy(ptr, op->o_ndn.bv_val) + 1;
2160 op2->o_dn = op2->o_ndn;
2161 op2->o_req_dn.bv_len = op->o_req_dn.bv_len;
2162 op2->o_req_dn.bv_val = ptr;
2163 ptr = lutil_strcopy(ptr, op->o_req_dn.bv_val) + 1;
2164 op2->o_req_ndn.bv_len = op->o_req_ndn.bv_len;
2165 op2->o_req_ndn.bv_val = ptr;
2166 ptr = lutil_strcopy(ptr, op->o_req_ndn.bv_val) + 1;
2167 op2->ors_filterstr.bv_val = ptr;
2168 strcpy( ptr, so->s_filterstr.bv_val );
2169 op2->ors_filterstr.bv_len = so->s_filterstr.bv_len;
2171 /* Skip the AND/GE clause that we stuck on in front */
2172 if ( so->s_flags & PS_FIX_FILTER ) {
2173 op2->ors_filter = op->ors_filter->f_and->f_next;
2174 so->s_flags ^= PS_FIX_FILTER;
2176 op2->ors_filter = op->ors_filter;
2178 op2->ors_filter = filter_dup( op2->ors_filter, NULL );
2181 /* Copy any cached group ACLs individually */
2182 op2->o_groups = NULL;
2183 for ( g1=op->o_groups; g1; g1=g1->ga_next ) {
2184 g2 = ch_malloc( sizeof(GroupAssertion) + g1->ga_len );
2186 strcpy( g2->ga_ndn, g1->ga_ndn );
2187 g2->ga_next = op2->o_groups;
2190 /* Don't allow any further group caching */
2191 op2->o_do_not_cache = 1;
2193 /* Add op2 to conn so abandon will find us */
2194 op->o_conn->c_n_ops_executing++;
2195 op->o_conn->c_n_ops_completed--;
2196 LDAP_STAILQ_INSERT_TAIL( &op->o_conn->c_ops, op2, o_next );
2197 so->s_flags |= PS_IS_DETACHED;
2199 /* Prevent anyone else from trying to send a result for this op */
2204 syncprov_search_response( Operation *op, SlapReply *rs )
2206 searchstate *ss = op->o_callback->sc_private;
2207 slap_overinst *on = ss->ss_on;
2208 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2209 sync_control *srs = op->o_controls[slap_cids.sc_LDAPsync];
2211 if ( rs->sr_type == REP_SEARCH || rs->sr_type == REP_SEARCHREF ) {
2213 /* If we got a referral without a referral object, there's
2214 * something missing that we cannot replicate. Just ignore it.
2215 * The consumer will abort because we didn't send the expected
2218 if ( !rs->sr_entry ) {
2219 assert( rs->sr_entry != NULL );
2220 Debug( LDAP_DEBUG_ANY, "bogus referral in context\n",0,0,0 );
2221 return SLAP_CB_CONTINUE;
2223 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryCSN );
2224 if ( a == NULL && rs->sr_operational_attrs != NULL ) {
2225 a = attr_find( rs->sr_operational_attrs, slap_schema.si_ad_entryCSN );
2229 sid = slap_parse_csn_sid( &a->a_nvals[0] );
2231 /* Don't send changed entries back to the originator */
2232 if ( sid == srs->sr_state.sid && srs->sr_state.numcsns ) {
2233 Debug( LDAP_DEBUG_SYNC,
2234 "Entry %s changed by peer, ignored\n",
2235 rs->sr_entry->e_name.bv_val, 0, 0 );
2236 return LDAP_SUCCESS;
2239 /* If not a persistent search */
2241 /* Make sure entry is less than the snapshot'd contextCSN */
2242 for ( i=0; i<ss->ss_numcsns; i++ ) {
2243 if ( sid == ss->ss_sids[i] && ber_bvcmp( &a->a_nvals[0],
2244 &ss->ss_ctxcsn[i] ) > 0 ) {
2245 Debug( LDAP_DEBUG_SYNC,
2246 "Entry %s CSN %s greater than snapshot %s\n",
2247 rs->sr_entry->e_name.bv_val,
2248 a->a_nvals[0].bv_val,
2249 ss->ss_ctxcsn[i].bv_val );
2250 return LDAP_SUCCESS;
2255 /* Don't send old entries twice */
2256 if ( srs->sr_state.ctxcsn ) {
2257 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2258 if ( sid == srs->sr_state.sids[i] &&
2259 ber_bvcmp( &a->a_nvals[0],
2260 &srs->sr_state.ctxcsn[i] )<= 0 ) {
2261 Debug( LDAP_DEBUG_SYNC,
2262 "Entry %s CSN %s older or equal to ctx %s\n",
2263 rs->sr_entry->e_name.bv_val,
2264 a->a_nvals[0].bv_val,
2265 srs->sr_state.ctxcsn[i].bv_val );
2266 return LDAP_SUCCESS;
2271 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2273 rs->sr_ctrls[1] = NULL;
2274 /* If we're in delta-sync mode, always send a cookie */
2275 if ( si->si_nopres && si->si_usehint && a ) {
2276 struct berval cookie;
2277 slap_compose_sync_cookie( op, &cookie, a->a_nvals, srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
2278 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2279 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 1, &cookie );
2281 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2282 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 0, NULL );
2284 } else if ( rs->sr_type == REP_RESULT && rs->sr_err == LDAP_SUCCESS ) {
2285 struct berval cookie = BER_BVNULL;
2287 if ( ( ss->ss_flags & SS_CHANGED ) &&
2288 ss->ss_ctxcsn && !BER_BVISNULL( &ss->ss_ctxcsn[0] )) {
2289 slap_compose_sync_cookie( op, &cookie, ss->ss_ctxcsn,
2290 srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
2292 Debug( LDAP_DEBUG_SYNC, "syncprov_search_response: cookie=%s\n", cookie.bv_val, 0, 0 );
2295 /* Is this a regular refresh?
2296 * Note: refresh never gets here if there were no changes
2299 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2301 rs->sr_ctrls[1] = NULL;
2302 rs->sr_err = syncprov_done_ctrl( op, rs, rs->sr_ctrls,
2303 0, 1, &cookie, ( ss->ss_flags & SS_PRESENT ) ? LDAP_SYNC_REFRESH_PRESENTS :
2304 LDAP_SYNC_REFRESH_DELETES );
2305 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2307 /* It's RefreshAndPersist, transition to Persist phase */
2308 syncprov_sendinfo( op, rs, ( ss->ss_flags & SS_PRESENT ) ?
2309 LDAP_TAG_SYNC_REFRESH_PRESENT : LDAP_TAG_SYNC_REFRESH_DELETE,
2310 ( ss->ss_flags & SS_CHANGED ) ? &cookie : NULL,
2312 if ( !BER_BVISNULL( &cookie ))
2313 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2315 /* Detach this Op from frontend control */
2316 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
2318 /* But not if this connection was closed along the way */
2319 if ( op->o_abandon ) {
2320 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2321 /* syncprov_ab_cleanup will free this syncop */
2322 return SLAPD_ABANDON;
2325 ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex );
2326 /* Turn off the refreshing flag */
2327 ss->ss_so->s_flags ^= PS_IS_REFRESHING;
2329 syncprov_detach_op( op, ss->ss_so, on );
2331 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2333 /* If there are queued responses, fire them off */
2334 if ( ss->ss_so->s_res )
2335 syncprov_qstart( ss->ss_so );
2336 ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
2339 return LDAP_SUCCESS;
2343 return SLAP_CB_CONTINUE;
2347 syncprov_op_search( Operation *op, SlapReply *rs )
2349 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2350 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2352 int gotstate = 0, changed = 0, do_present = 0;
2353 syncops *sop = NULL;
2357 int i, *sids, numcsns;
2358 struct berval mincsn;
2360 if ( !(op->o_sync_mode & SLAP_SYNC_REFRESH) ) return SLAP_CB_CONTINUE;
2362 if ( op->ors_deref & LDAP_DEREF_SEARCHING ) {
2363 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR, "illegal value for derefAliases" );
2367 srs = op->o_controls[slap_cids.sc_LDAPsync];
2369 /* If this is a persistent search, set it up right away */
2370 if ( op->o_sync_mode & SLAP_SYNC_PERSIST ) {
2380 so.s_flags = PS_IS_REFRESHING | PS_FIND_BASE;
2381 /* syncprov_findbase expects to be called as a callback... */
2382 sc.sc_private = &opc;
2384 ldap_pvt_thread_mutex_init( &so.s_mutex );
2385 cb = op->o_callback;
2386 op->o_callback = ≻
2387 rs->sr_err = syncprov_findbase( op, &fc );
2388 op->o_callback = cb;
2389 ldap_pvt_thread_mutex_destroy( &so.s_mutex );
2391 if ( rs->sr_err != LDAP_SUCCESS ) {
2392 send_ldap_result( op, rs );
2395 sop = ch_malloc( sizeof( syncops ));
2397 ldap_pvt_thread_mutex_init( &sop->s_mutex );
2398 sop->s_rid = srs->sr_state.rid;
2399 sop->s_sid = srs->sr_state.sid;
2402 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2403 sop->s_next = si->si_ops;
2405 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2408 /* snapshot the ctxcsn */
2409 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2410 numcsns = si->si_numcsns;
2412 ber_bvarray_dup_x( &ctxcsn, si->si_ctxcsn, op->o_tmpmemctx );
2413 sids = op->o_tmpalloc( numcsns * sizeof(int), op->o_tmpmemctx );
2414 for ( i=0; i<numcsns; i++ )
2415 sids[i] = si->si_sids[i];
2420 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2422 /* If we have a cookie, handle the PRESENT lookups */
2423 if ( srs->sr_state.ctxcsn ) {
2427 /* If we don't have any CSN of our own yet, pretend nothing
2433 if ( !si->si_nopres )
2434 do_present = SS_PRESENT;
2436 /* If there are SIDs we don't recognize in the cookie, drop them */
2437 for (i=0; i<srs->sr_state.numcsns; ) {
2438 for (j=0; j<numcsns; j++) {
2439 if ( srs->sr_state.sids[i] == sids[j] ) {
2444 if ( j == numcsns ) {
2445 struct berval tmp = srs->sr_state.ctxcsn[i];
2446 j = srs->sr_state.numcsns - 1;
2447 srs->sr_state.ctxcsn[i] = srs->sr_state.ctxcsn[j];
2449 srs->sr_state.ctxcsn[j] = tmp;
2450 srs->sr_state.numcsns = j;
2451 srs->sr_state.sids[i] = srs->sr_state.sids[j];
2457 /* Find the smallest CSN */
2458 mincsn = srs->sr_state.ctxcsn[0];
2459 for ( i=1; i<srs->sr_state.numcsns; i++ ) {
2460 if ( ber_bvcmp( &mincsn, &srs->sr_state.ctxcsn[i] ) > 0 )
2461 mincsn = srs->sr_state.ctxcsn[i];
2464 /* If nothing has changed, shortcut it */
2465 if ( srs->sr_state.numcsns == numcsns ) {
2467 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2468 for ( j=0; j<numcsns; j++ ) {
2469 if ( srs->sr_state.sids[i] != sids[j] )
2471 newer = ber_bvcmp( &srs->sr_state.ctxcsn[i], &ctxcsn[j] );
2472 /* If our state is newer, tell consumer about changes */
2474 changed = SS_CHANGED;
2475 else if ( newer > 0 ) {
2476 /* our state is older, tell consumer nothing */
2477 rs->sr_err = LDAP_SUCCESS;
2480 syncops **sp = &si->si_ops;
2482 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2483 while ( *sp != sop )
2484 sp = &(*sp)->s_next;
2486 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2489 rs->sr_ctrls = NULL;
2490 send_ldap_result( op, rs );
2500 no_change: if ( !(op->o_sync_mode & SLAP_SYNC_PERSIST) ) {
2501 LDAPControl *ctrls[2];
2505 syncprov_done_ctrl( op, rs, ctrls, 0, 0,
2506 NULL, LDAP_SYNC_REFRESH_DELETES );
2507 rs->sr_ctrls = ctrls;
2508 rs->sr_err = LDAP_SUCCESS;
2509 send_ldap_result( op, rs );
2510 rs->sr_ctrls = NULL;
2516 /* consumer doesn't have the right number of CSNs */
2517 changed = SS_CHANGED;
2519 /* Do we have a sessionlog for this search? */
2522 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
2523 /* Are there any log entries, and is the consumer state
2524 * present in the session log?
2526 if ( sl->sl_num > 0 && ber_bvcmp( &mincsn, &sl->sl_mincsn ) >= 0 ) {
2528 /* mutex is unlocked in playlog */
2529 syncprov_playlog( op, rs, sl, srs, ctxcsn, numcsns, sids );
2531 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
2534 /* Is the CSN still present in the database? */
2535 if ( syncprov_findcsn( op, FIND_CSN ) != LDAP_SUCCESS ) {
2536 /* No, so a reload is required */
2537 /* the 2.2 consumer doesn't send this hint */
2538 if ( si->si_usehint && srs->sr_rhint == 0 ) {
2540 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2542 op->o_tmpfree( sids, op->o_tmpmemctx );
2543 rs->sr_err = LDAP_SYNC_REFRESH_REQUIRED;
2544 rs->sr_text = "sync cookie is stale";
2547 if ( srs->sr_state.ctxcsn ) {
2548 ber_bvarray_free_x( srs->sr_state.ctxcsn, op->o_tmpmemctx );
2549 srs->sr_state.ctxcsn = NULL;
2551 if ( srs->sr_state.sids ) {
2552 slap_sl_free( srs->sr_state.sids, op->o_tmpmemctx );
2553 srs->sr_state.sids = NULL;
2555 srs->sr_state.numcsns = 0;
2558 /* If changed and doing Present lookup, send Present UUIDs */
2559 if ( do_present && syncprov_findcsn( op, FIND_PRESENT ) !=
2562 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2564 op->o_tmpfree( sids, op->o_tmpmemctx );
2569 /* No consumer state, assume something has changed */
2570 changed = SS_CHANGED;
2574 /* Append CSN range to search filter, save original filter
2575 * for persistent search evaluation
2578 sop->s_filterstr= op->ors_filterstr;
2581 /* If something changed, find the changes */
2582 if ( gotstate && changed ) {
2583 Filter *fand, *fava;
2585 fand = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2586 fand->f_choice = LDAP_FILTER_AND;
2587 fand->f_next = NULL;
2588 fava = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2590 fava->f_choice = LDAP_FILTER_GE;
2591 fava->f_ava = op->o_tmpalloc( sizeof(AttributeAssertion), op->o_tmpmemctx );
2592 fava->f_ava->aa_desc = slap_schema.si_ad_entryCSN;
2593 #ifdef LDAP_COMP_MATCH
2594 fava->f_ava->aa_cf = NULL;
2596 ber_dupbv_x( &fava->f_ava->aa_value, &mincsn, op->o_tmpmemctx );
2597 fava->f_next = op->ors_filter;
2598 op->ors_filter = fand;
2599 filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2601 sop->s_flags |= PS_FIX_FILTER;
2604 /* Let our callback add needed info to returned entries */
2605 cb = op->o_tmpcalloc(1, sizeof(slap_callback)+sizeof(searchstate), op->o_tmpmemctx);
2606 ss = (searchstate *)(cb+1);
2609 ss->ss_flags = do_present | changed;
2610 ss->ss_ctxcsn = ctxcsn;
2611 ss->ss_numcsns = numcsns;
2613 cb->sc_response = syncprov_search_response;
2614 cb->sc_cleanup = syncprov_search_cleanup;
2615 cb->sc_private = ss;
2616 cb->sc_next = op->o_callback;
2617 op->o_callback = cb;
2619 /* If this is a persistent search and no changes were reported during
2620 * the refresh phase, just invoke the response callback to transition
2621 * us into persist phase
2624 rs->sr_err = LDAP_SUCCESS;
2625 rs->sr_nentries = 0;
2626 send_ldap_result( op, rs );
2629 return SLAP_CB_CONTINUE;
2633 syncprov_operational(
2637 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2638 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2640 /* This prevents generating unnecessarily; frontend will strip
2641 * any statically stored copy.
2643 if ( op->o_sync != SLAP_CONTROL_NONE )
2644 return SLAP_CB_CONTINUE;
2646 if ( rs->sr_entry &&
2647 dn_match( &rs->sr_entry->e_nname, &si->si_contextdn )) {
2649 if ( SLAP_OPATTRS( rs->sr_attr_flags ) ||
2650 ad_inlist( slap_schema.si_ad_contextCSN, rs->sr_attrs )) {
2651 Attribute *a, **ap = NULL;
2653 for ( a=rs->sr_entry->e_attrs; a; a=a->a_next ) {
2654 if ( a->a_desc == slap_schema.si_ad_contextCSN )
2658 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2659 if ( si->si_ctxcsn ) {
2661 for ( ap = &rs->sr_operational_attrs; *ap;
2662 ap=&(*ap)->a_next );
2664 a = attr_alloc( slap_schema.si_ad_contextCSN );
2669 if ( !(rs->sr_flags & REP_ENTRY_MODIFIABLE) ) {
2670 Entry *e = entry_dup( rs->sr_entry );
2671 if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
2672 overlay_entry_release_ov( op, rs->sr_entry, 0, on );
2673 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
2674 } else if ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) {
2675 entry_free( rs->sr_entry );
2679 REP_ENTRY_MODIFIABLE|REP_ENTRY_MUSTBEFREED;
2680 a = attr_find( rs->sr_entry->e_attrs,
2681 slap_schema.si_ad_contextCSN );
2683 if ( a->a_nvals != a->a_vals ) {
2684 ber_bvarray_free( a->a_nvals );
2687 ber_bvarray_free( a->a_vals );
2691 attr_valadd( a, si->si_ctxcsn, si->si_ctxcsn, si->si_numcsns );
2693 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2696 return SLAP_CB_CONTINUE;
2706 static ConfigDriver sp_cf_gen;
2708 static ConfigTable spcfg[] = {
2709 { "syncprov-checkpoint", "ops> <minutes", 3, 3, 0, ARG_MAGIC|SP_CHKPT,
2710 sp_cf_gen, "( OLcfgOvAt:1.1 NAME 'olcSpCheckpoint' "
2711 "DESC 'ContextCSN checkpoint interval in ops and minutes' "
2712 "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
2713 { "syncprov-sessionlog", "ops", 2, 2, 0, ARG_INT|ARG_MAGIC|SP_SESSL,
2714 sp_cf_gen, "( OLcfgOvAt:1.2 NAME 'olcSpSessionlog' "
2715 "DESC 'Session log size in ops' "
2716 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
2717 { "syncprov-nopresent", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_NOPRES,
2718 sp_cf_gen, "( OLcfgOvAt:1.3 NAME 'olcSpNoPresent' "
2719 "DESC 'Omit Present phase processing' "
2720 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2721 { "syncprov-reloadhint", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_USEHINT,
2722 sp_cf_gen, "( OLcfgOvAt:1.4 NAME 'olcSpReloadHint' "
2723 "DESC 'Observe Reload Hint in Request control' "
2724 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2725 { NULL, NULL, 0, 0, 0, ARG_IGNORED }
2728 static ConfigOCs spocs[] = {
2729 { "( OLcfgOvOc:1.1 "
2730 "NAME 'olcSyncProvConfig' "
2731 "DESC 'SyncRepl Provider configuration' "
2732 "SUP olcOverlayConfig "
2733 "MAY ( olcSpCheckpoint "
2734 "$ olcSpSessionlog "
2736 "$ olcSpReloadHint "
2738 Cft_Overlay, spcfg },
2743 sp_cf_gen(ConfigArgs *c)
2745 slap_overinst *on = (slap_overinst *)c->bi;
2746 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2749 if ( c->op == SLAP_CONFIG_EMIT ) {
2750 switch ( c->type ) {
2752 if ( si->si_chkops || si->si_chktime ) {
2754 /* we assume si_chktime is a multiple of 60
2755 * because the parsed value was originally
2756 * multiplied by 60 */
2757 bv.bv_len = snprintf( c->cr_msg, sizeof( c->cr_msg ),
2758 "%d %d", si->si_chkops, si->si_chktime/60 );
2759 if ( bv.bv_len >= sizeof( c->cr_msg ) ) {
2762 bv.bv_val = c->cr_msg;
2763 value_add_one( &c->rvalue_vals, &bv );
2770 if ( si->si_logs ) {
2771 c->value_int = si->si_logs->sl_size;
2777 if ( si->si_nopres ) {
2784 if ( si->si_usehint ) {
2792 } else if ( c->op == LDAP_MOD_DELETE ) {
2793 switch ( c->type ) {
2800 si->si_logs->sl_size = 0;
2802 rc = LDAP_NO_SUCH_ATTRIBUTE;
2805 if ( si->si_nopres )
2808 rc = LDAP_NO_SUCH_ATTRIBUTE;
2811 if ( si->si_usehint )
2814 rc = LDAP_NO_SUCH_ATTRIBUTE;
2819 switch ( c->type ) {
2821 if ( lutil_atoi( &si->si_chkops, c->argv[1] ) != 0 ) {
2822 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint ops # \"%s\"",
2823 c->argv[0], c->argv[1] );
2824 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2825 "%s: %s\n", c->log, c->cr_msg, 0 );
2826 return ARG_BAD_CONF;
2828 if ( si->si_chkops <= 0 ) {
2829 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint ops # \"%d\"",
2830 c->argv[0], si->si_chkops );
2831 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2832 "%s: %s\n", c->log, c->cr_msg, 0 );
2833 return ARG_BAD_CONF;
2835 if ( lutil_atoi( &si->si_chktime, c->argv[2] ) != 0 ) {
2836 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint time \"%s\"",
2837 c->argv[0], c->argv[1] );
2838 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2839 "%s: %s\n", c->log, c->cr_msg, 0 );
2840 return ARG_BAD_CONF;
2842 if ( si->si_chktime <= 0 ) {
2843 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint time \"%d\"",
2844 c->argv[0], si->si_chkops );
2845 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2846 "%s: %s\n", c->log, c->cr_msg, 0 );
2847 return ARG_BAD_CONF;
2849 si->si_chktime *= 60;
2853 int size = c->value_int;
2856 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s size %d is negative",
2858 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2859 "%s: %s\n", c->log, c->cr_msg, 0 );
2860 return ARG_BAD_CONF;
2864 sl = ch_malloc( sizeof( sessionlog ) + LDAP_PVT_CSNSTR_BUFSIZE );
2865 sl->sl_mincsn.bv_val = (char *)(sl+1);
2866 sl->sl_mincsn.bv_len = 0;
2868 sl->sl_head = sl->sl_tail = NULL;
2869 ldap_pvt_thread_mutex_init( &sl->sl_mutex );
2876 si->si_nopres = c->value_int;
2879 si->si_usehint = c->value_int;
2885 /* ITS#3456 we cannot run this search on the main thread, must use a
2886 * child thread in order to insure we have a big enough stack.
2893 syncprov_findcsn( ptr, FIND_MAXCSN );
2897 /* Read any existing contextCSN from the underlying db.
2898 * Then search for any entries newer than that. If no value exists,
2899 * just generate it. Cache whatever result.
2907 slap_overinst *on = (slap_overinst *) be->bd_info;
2908 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2910 Connection conn = { 0 };
2911 OperationBuffer opbuf;
2916 void *thrctx = NULL;
2918 if ( !SLAP_LASTMOD( be )) {
2919 Debug( LDAP_DEBUG_ANY,
2920 "syncprov_db_open: invalid config, lastmod must be enabled\n", 0, 0, 0 );
2924 if ( slapMode & SLAP_TOOL_MODE ) {
2928 rc = overlay_register_control( be, LDAP_CONTROL_SYNC );
2933 thrctx = ldap_pvt_thread_pool_context();
2934 connection_fake_init2( &conn, &opbuf, thrctx, 0 );
2937 op->o_dn = be->be_rootdn;
2938 op->o_ndn = be->be_rootndn;
2940 if ( SLAP_SYNC_SUBENTRY( be )) {
2941 build_new_dn( &si->si_contextdn, be->be_nsuffix,
2942 (struct berval *)&slap_ldapsync_cn_bv, NULL );
2944 si->si_contextdn = be->be_nsuffix[0];
2946 rc = overlay_entry_get_ov( op, &si->si_contextdn, NULL,
2947 slap_schema.si_ad_contextCSN, 0, &e, on );
2950 ldap_pvt_thread_t tid;
2952 a = attr_find( e->e_attrs, slap_schema.si_ad_contextCSN );
2954 ber_bvarray_dup_x( &si->si_ctxcsn, a->a_vals, NULL );
2955 si->si_numcsns = a->a_numvals;
2956 si->si_sids = slap_parse_csn_sids( si->si_ctxcsn, a->a_numvals, NULL );
2958 overlay_entry_release_ov( op, e, 0, on );
2959 if ( si->si_ctxcsn && !SLAP_DBCLEAN( be )) {
2960 op->o_req_dn = be->be_suffix[0];
2961 op->o_req_ndn = be->be_nsuffix[0];
2962 op->ors_scope = LDAP_SCOPE_SUBTREE;
2963 ldap_pvt_thread_create( &tid, 0, syncprov_db_otask, op );
2964 ldap_pvt_thread_join( tid, NULL );
2968 /* Didn't find a contextCSN, should we generate one? */
2969 if ( !si->si_ctxcsn ) {
2970 char csnbuf[ LDAP_PVT_CSNSTR_BUFSIZE ];
2973 if ( SLAP_SYNC_SHADOW( op->o_bd )) {
2974 /* If we're also a consumer, then don't generate anything.
2975 * Wait for our provider to send it to us, or for a local
2976 * modify if we have multimaster.
2980 csn.bv_val = csnbuf;
2981 csn.bv_len = sizeof( csnbuf );
2982 slap_get_csn( op, &csn, 0 );
2983 value_add_one( &si->si_ctxcsn, &csn );
2985 si->si_sids = ch_malloc( sizeof(int) );
2986 si->si_sids[0] = slap_serverID;
2988 /* make sure we do a checkpoint on close */
2993 op->o_bd->bd_info = (BackendInfo *)on;
2997 /* Write the current contextCSN into the underlying db.
3005 slap_overinst *on = (slap_overinst *) be->bd_info;
3006 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3008 if ( slapMode & SLAP_TOOL_MODE ) {
3011 if ( si->si_numops ) {
3012 Connection conn = {0};
3013 OperationBuffer opbuf;
3015 SlapReply rs = {REP_RESULT};
3018 thrctx = ldap_pvt_thread_pool_context();
3019 connection_fake_init2( &conn, &opbuf, thrctx, 0 );
3022 op->o_dn = be->be_rootdn;
3023 op->o_ndn = be->be_rootndn;
3024 syncprov_checkpoint( op, &rs, on );
3036 slap_overinst *on = (slap_overinst *)be->bd_info;
3037 syncprov_info_t *si;
3039 if ( SLAP_ISGLOBALOVERLAY( be ) ) {
3040 Debug( LDAP_DEBUG_ANY,
3041 "syncprov must be instantiated within a database.\n",
3046 si = ch_calloc(1, sizeof(syncprov_info_t));
3047 on->on_bi.bi_private = si;
3048 ldap_pvt_thread_rdwr_init( &si->si_csn_rwlock );
3049 ldap_pvt_thread_mutex_init( &si->si_ops_mutex );
3050 ldap_pvt_thread_mutex_init( &si->si_mods_mutex );
3051 ldap_pvt_thread_mutex_init( &si->si_resp_mutex );
3053 csn_anlist[0].an_desc = slap_schema.si_ad_entryCSN;
3054 csn_anlist[0].an_name = slap_schema.si_ad_entryCSN->ad_cname;
3055 csn_anlist[1].an_desc = slap_schema.si_ad_entryUUID;
3056 csn_anlist[1].an_name = slap_schema.si_ad_entryUUID->ad_cname;
3058 uuid_anlist[0].an_desc = slap_schema.si_ad_entryUUID;
3059 uuid_anlist[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
3065 syncprov_db_destroy(
3070 slap_overinst *on = (slap_overinst *)be->bd_info;
3071 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3074 if ( si->si_logs ) {
3075 slog_entry *se = si->si_logs->sl_head;
3078 slog_entry *se_next = se->se_next;
3083 ch_free( si->si_logs );
3085 if ( si->si_ctxcsn )
3086 ber_bvarray_free( si->si_ctxcsn );
3088 ch_free( si->si_sids );
3089 ldap_pvt_thread_mutex_destroy( &si->si_resp_mutex );
3090 ldap_pvt_thread_mutex_destroy( &si->si_mods_mutex );
3091 ldap_pvt_thread_mutex_destroy( &si->si_ops_mutex );
3092 ldap_pvt_thread_rdwr_destroy( &si->si_csn_rwlock );
3099 static int syncprov_parseCtrl (
3105 BerElementBuffer berbuf;
3106 BerElement *ber = (BerElement *)&berbuf;
3109 struct berval cookie = BER_BVNULL;
3113 if ( op->o_sync != SLAP_CONTROL_NONE ) {
3114 rs->sr_text = "Sync control specified multiple times";
3115 return LDAP_PROTOCOL_ERROR;
3118 if ( op->o_pagedresults != SLAP_CONTROL_NONE ) {
3119 rs->sr_text = "Sync control specified with pagedResults control";
3120 return LDAP_PROTOCOL_ERROR;
3123 if ( BER_BVISNULL( &ctrl->ldctl_value ) ) {
3124 rs->sr_text = "Sync control value is absent";
3125 return LDAP_PROTOCOL_ERROR;
3128 if ( BER_BVISEMPTY( &ctrl->ldctl_value ) ) {
3129 rs->sr_text = "Sync control value is empty";
3130 return LDAP_PROTOCOL_ERROR;
3133 /* Parse the control value
3134 * syncRequestValue ::= SEQUENCE {
3139 * refreshAndPersist (3)
3141 * cookie syncCookie OPTIONAL
3145 ber_init2( ber, &ctrl->ldctl_value, 0 );
3147 if ( (tag = ber_scanf( ber, "{i" /*}*/, &mode )) == LBER_ERROR ) {
3148 rs->sr_text = "Sync control : mode decoding error";
3149 return LDAP_PROTOCOL_ERROR;
3153 case LDAP_SYNC_REFRESH_ONLY:
3154 mode = SLAP_SYNC_REFRESH;
3156 case LDAP_SYNC_REFRESH_AND_PERSIST:
3157 mode = SLAP_SYNC_REFRESH_AND_PERSIST;
3160 rs->sr_text = "Sync control : unknown update mode";
3161 return LDAP_PROTOCOL_ERROR;
3164 tag = ber_peek_tag( ber, &len );
3166 if ( tag == LDAP_TAG_SYNC_COOKIE ) {
3167 if (( ber_scanf( ber, /*{*/ "m", &cookie )) == LBER_ERROR ) {
3168 rs->sr_text = "Sync control : cookie decoding error";
3169 return LDAP_PROTOCOL_ERROR;
3171 tag = ber_peek_tag( ber, &len );
3173 if ( tag == LDAP_TAG_RELOAD_HINT ) {
3174 if (( ber_scanf( ber, /*{*/ "b", &rhint )) == LBER_ERROR ) {
3175 rs->sr_text = "Sync control : rhint decoding error";
3176 return LDAP_PROTOCOL_ERROR;
3179 if (( ber_scanf( ber, /*{*/ "}")) == LBER_ERROR ) {
3180 rs->sr_text = "Sync control : decoding error";
3181 return LDAP_PROTOCOL_ERROR;
3183 sr = op->o_tmpcalloc( 1, sizeof(struct sync_control), op->o_tmpmemctx );
3184 sr->sr_rhint = rhint;
3185 if (!BER_BVISNULL(&cookie)) {
3186 ber_dupbv_x( &sr->sr_state.octet_str, &cookie, op->o_tmpmemctx );
3187 /* If parse fails, pretend no cookie was sent */
3188 if ( slap_parse_sync_cookie( &sr->sr_state, op->o_tmpmemctx ) ||
3189 sr->sr_state.rid == -1 ) {
3190 if ( sr->sr_state.ctxcsn ) {
3191 ber_bvarray_free_x( sr->sr_state.ctxcsn, op->o_tmpmemctx );
3192 sr->sr_state.ctxcsn = NULL;
3194 sr->sr_state.numcsns = 0;
3198 op->o_controls[slap_cids.sc_LDAPsync] = sr;
3200 op->o_sync = ctrl->ldctl_iscritical
3201 ? SLAP_CONTROL_CRITICAL
3202 : SLAP_CONTROL_NONCRITICAL;
3204 op->o_sync_mode |= mode; /* o_sync_mode shares o_sync */
3206 return LDAP_SUCCESS;
3209 /* This overlay is set up for dynamic loading via moduleload. For static
3210 * configuration, you'll need to arrange for the slap_overinst to be
3211 * initialized and registered by some other function inside slapd.
3214 static slap_overinst syncprov;
3217 syncprov_initialize()
3221 rc = register_supported_control( LDAP_CONTROL_SYNC,
3222 SLAP_CTRL_SEARCH, NULL,
3223 syncprov_parseCtrl, &slap_cids.sc_LDAPsync );
3224 if ( rc != LDAP_SUCCESS ) {
3225 Debug( LDAP_DEBUG_ANY,
3226 "syncprov_init: Failed to register control %d\n", rc, 0, 0 );
3230 syncprov.on_bi.bi_type = "syncprov";
3231 syncprov.on_bi.bi_db_init = syncprov_db_init;
3232 syncprov.on_bi.bi_db_destroy = syncprov_db_destroy;
3233 syncprov.on_bi.bi_db_open = syncprov_db_open;
3234 syncprov.on_bi.bi_db_close = syncprov_db_close;
3236 syncprov.on_bi.bi_op_abandon = syncprov_op_abandon;
3237 syncprov.on_bi.bi_op_cancel = syncprov_op_abandon;
3239 syncprov.on_bi.bi_op_add = syncprov_op_mod;
3240 syncprov.on_bi.bi_op_compare = syncprov_op_compare;
3241 syncprov.on_bi.bi_op_delete = syncprov_op_mod;
3242 syncprov.on_bi.bi_op_modify = syncprov_op_mod;
3243 syncprov.on_bi.bi_op_modrdn = syncprov_op_mod;
3244 syncprov.on_bi.bi_op_search = syncprov_op_search;
3245 syncprov.on_bi.bi_extended = syncprov_op_extended;
3246 syncprov.on_bi.bi_operational = syncprov_operational;
3248 syncprov.on_bi.bi_cf_ocs = spocs;
3250 generic_filter.f_desc = slap_schema.si_ad_objectClass;
3252 rc = config_register_schema( spcfg, spocs );
3253 if ( rc ) return rc;
3255 return overlay_register( &syncprov );
3258 #if SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC
3260 init_module( int argc, char *argv[] )
3262 return syncprov_initialize();
3264 #endif /* SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC */
3266 #endif /* defined(SLAPD_OVER_SYNCPROV) */