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 if ( --so->s_inuse > 0 ) {
787 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
790 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
791 if ( so->s_flags & PS_IS_DETACHED ) {
792 filter_free( so->s_op->ors_filter );
793 for ( ga = so->s_op->o_groups; ga; ga=gnext ) {
799 ch_free( so->s_base.bv_val );
800 for ( sr=so->s_res; sr; sr=srnext ) {
803 if ( !dec_mutexint( sr->s_e->e_private )) {
804 sr->s_e->e_private = NULL;
805 entry_free( sr->s_e );
810 ldap_pvt_thread_mutex_destroy( &so->s_mutex );
814 /* Send a persistent search response */
816 syncprov_sendresp( Operation *op, opcookie *opc, syncops *so, int mode )
818 slap_overinst *on = opc->son;
820 SlapReply rs = { REP_SEARCH };
821 LDAPControl *ctrls[2];
822 struct berval cookie = BER_BVNULL, csns[2];
824 Attribute a_uuid = {0};
826 if ( so->s_op->o_abandon )
827 return SLAPD_ABANDON;
830 if ( !BER_BVISNULL( &opc->sctxcsn )) {
831 csns[0] = opc->sctxcsn;
832 BER_BVZERO( &csns[1] );
833 slap_compose_sync_cookie( op, &cookie, csns, so->s_rid, slap_serverID ? slap_serverID : -1 );
837 if ( so->s_sid > 0 ) {
838 Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: to=%03x, cookie=%s\n",
839 so->s_sid, cookie.bv_val ? cookie.bv_val : "", 0 );
841 Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: cookie=%s\n",
842 cookie.bv_val ? cookie.bv_val : "", 0, 0 );
846 e_uuid.e_attrs = &a_uuid;
847 a_uuid.a_desc = slap_schema.si_ad_entryUUID;
848 a_uuid.a_nvals = &opc->suuid;
849 rs.sr_err = syncprov_state_ctrl( op, &rs, &e_uuid,
850 mode, ctrls, 0, 1, &cookie );
851 if ( !BER_BVISNULL( &cookie )) {
852 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
856 rs.sr_entry = &e_uuid;
857 if ( mode == LDAP_SYNC_ADD || mode == LDAP_SYNC_MODIFY ) {
859 e_uuid.e_private = NULL;
864 if ( opc->sreference && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
865 rs.sr_ref = get_entry_referrals( op, rs.sr_entry );
866 rs.sr_err = send_search_reference( op, &rs );
867 ber_bvarray_free( rs.sr_ref );
871 case LDAP_SYNC_MODIFY:
872 rs.sr_attrs = op->ors_attrs;
873 rs.sr_err = send_search_entry( op, &rs );
875 case LDAP_SYNC_DELETE:
876 e_uuid.e_attrs = NULL;
877 e_uuid.e_name = opc->sdn;
878 e_uuid.e_nname = opc->sndn;
879 if ( opc->sreference && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
880 struct berval bv = BER_BVNULL;
882 rs.sr_err = send_search_reference( op, &rs );
884 rs.sr_err = send_search_entry( op, &rs );
890 /* In case someone else freed it already? */
893 for ( i=0; rs.sr_ctrls[i]; i++ ) {
894 if ( rs.sr_ctrls[i] == ctrls[0] ) {
895 op->o_tmpfree( ctrls[0]->ldctl_value.bv_val, op->o_tmpmemctx );
896 ctrls[0]->ldctl_value.bv_val = NULL;
907 syncprov_qstart( syncops *so );
909 /* Play back queued responses */
911 syncprov_qplay( Operation *op, syncops *so )
913 slap_overinst *on = LDAP_SLIST_FIRST(&so->s_op->o_extra)->oe_key;
922 ldap_pvt_thread_mutex_lock( &so->s_mutex );
925 so->s_res = sr->s_next;
927 so->s_restail = NULL;
928 /* Exit loop with mutex held */
929 if ( !sr || so->s_op->o_abandon )
931 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
933 if ( sr->s_mode == LDAP_SYNC_NEW_COOKIE ) {
934 SlapReply rs = { REP_INTERMEDIATE };
936 rc = syncprov_sendinfo( op, &rs, LDAP_TAG_SYNC_NEW_COOKIE,
937 &sr->s_csn, 0, NULL, 0 );
940 opc.sndn = sr->s_ndn;
941 opc.suuid = sr->s_uuid;
942 opc.sctxcsn = sr->s_csn;
943 opc.sreference = sr->s_isreference;
946 rc = syncprov_sendresp( op, &opc, so, sr->s_mode );
949 if ( !dec_mutexint( opc.se->e_private )) {
950 opc.se->e_private = NULL;
951 entry_free ( opc.se );
958 /* Exit loop with mutex held */
959 ldap_pvt_thread_mutex_lock( &so->s_mutex );
963 /* We now only send one change at a time, to prevent one
964 * psearch from hogging all the CPU. Resubmit this task if
965 * there are more responses queued and no errors occurred.
968 if ( rc == 0 && so->s_res ) {
969 syncprov_qstart( so );
971 so->s_flags ^= PS_TASK_QUEUED;
974 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
978 /* task for playing back queued responses */
980 syncprov_qtask( void *ctx, void *arg )
983 OperationBuffer opbuf;
990 op->o_hdr = &opbuf.ob_hdr;
991 op->o_controls = opbuf.ob_controls;
992 memset( op->o_controls, 0, sizeof(opbuf.ob_controls) );
994 *op->o_hdr = *so->s_op->o_hdr;
996 op->o_tmpmemctx = slap_sl_mem_create(SLAP_SLAB_SIZE, SLAP_SLAB_STACK, ctx, 1);
997 op->o_tmpmfuncs = &slap_sl_mfuncs;
998 op->o_threadctx = ctx;
1000 /* syncprov_qplay expects a fake db */
1001 be = *so->s_op->o_bd;
1002 be.be_flags |= SLAP_DBFLAG_OVERLAY;
1004 LDAP_SLIST_FIRST(&op->o_extra) = NULL;
1005 op->o_callback = NULL;
1007 rc = syncprov_qplay( op, so );
1009 /* decrement use count... */
1010 syncprov_free_syncop( so );
1015 /* Start the task to play back queued psearch responses */
1017 syncprov_qstart( syncops *so )
1019 so->s_flags |= PS_TASK_QUEUED;
1021 ldap_pvt_thread_pool_submit( &connection_pool,
1022 syncprov_qtask, so );
1025 /* Queue a persistent search response */
1027 syncprov_qresp( opcookie *opc, syncops *so, int mode )
1031 struct berval cookie = opc->sctxcsn;
1033 if ( mode == LDAP_SYNC_NEW_COOKIE ) {
1034 syncprov_info_t *si = opc->son->on_bi.bi_private;
1036 slap_compose_sync_cookie( NULL, &cookie, si->si_ctxcsn,
1037 so->s_rid, slap_serverID ? slap_serverID : -1);
1040 srsize = sizeof(syncres) + opc->suuid.bv_len + 1 +
1041 opc->sdn.bv_len + 1 + opc->sndn.bv_len + 1;
1042 if ( cookie.bv_len )
1043 srsize += cookie.bv_len + 1;
1044 sr = ch_malloc( srsize );
1047 /* bump refcount on this entry */
1049 inc_mutexint( opc->se->e_private );
1050 sr->s_dn.bv_val = (char *)(sr + 1);
1051 sr->s_dn.bv_len = opc->sdn.bv_len;
1053 sr->s_isreference = opc->sreference;
1054 sr->s_ndn.bv_val = lutil_strcopy( sr->s_dn.bv_val,
1055 opc->sdn.bv_val ) + 1;
1056 sr->s_ndn.bv_len = opc->sndn.bv_len;
1057 sr->s_uuid.bv_val = lutil_strcopy( sr->s_ndn.bv_val,
1058 opc->sndn.bv_val ) + 1;
1059 sr->s_uuid.bv_len = opc->suuid.bv_len;
1060 AC_MEMCPY( sr->s_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1061 if ( cookie.bv_len ) {
1062 sr->s_csn.bv_val = sr->s_uuid.bv_val + sr->s_uuid.bv_len + 1;
1063 strcpy( sr->s_csn.bv_val, cookie.bv_val );
1065 sr->s_csn.bv_val = NULL;
1067 sr->s_csn.bv_len = cookie.bv_len;
1069 if ( mode == LDAP_SYNC_NEW_COOKIE && cookie.bv_val ) {
1070 ch_free( cookie.bv_val );
1073 ldap_pvt_thread_mutex_lock( &so->s_mutex );
1077 so->s_restail->s_next = sr;
1081 /* If the base of the psearch was modified, check it next time round */
1082 if ( so->s_flags & PS_WROTE_BASE ) {
1083 so->s_flags ^= PS_WROTE_BASE;
1084 so->s_flags |= PS_FIND_BASE;
1086 if (( so->s_flags & (PS_IS_DETACHED|PS_TASK_QUEUED)) == PS_IS_DETACHED ) {
1087 syncprov_qstart( so );
1089 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
1090 return LDAP_SUCCESS;
1094 syncprov_drop_psearch( syncops *so, int lock )
1096 if ( so->s_flags & PS_IS_DETACHED ) {
1098 ldap_pvt_thread_mutex_lock( &so->s_op->o_conn->c_mutex );
1099 so->s_op->o_conn->c_n_ops_executing--;
1100 so->s_op->o_conn->c_n_ops_completed++;
1101 LDAP_STAILQ_REMOVE( &so->s_op->o_conn->c_ops, so->s_op, Operation,
1104 ldap_pvt_thread_mutex_unlock( &so->s_op->o_conn->c_mutex );
1106 syncprov_free_syncop( so );
1112 syncprov_ab_cleanup( Operation *op, SlapReply *rs )
1114 slap_callback *sc = op->o_callback;
1115 op->o_callback = sc->sc_next;
1116 syncprov_drop_psearch( op->o_callback->sc_private, 0 );
1117 op->o_tmpfree( sc, op->o_tmpmemctx );
1122 syncprov_op_abandon( Operation *op, SlapReply *rs )
1124 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1125 syncprov_info_t *si = on->on_bi.bi_private;
1126 syncops *so, *soprev;
1128 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1129 for ( so=si->si_ops, soprev = (syncops *)&si->si_ops; so;
1130 soprev=so, so=so->s_next ) {
1131 if ( so->s_op->o_connid == op->o_connid &&
1132 so->s_op->o_msgid == op->orn_msgid ) {
1133 so->s_op->o_abandon = 1;
1134 soprev->s_next = so->s_next;
1138 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1140 /* Is this really a Cancel exop? */
1141 if ( op->o_tag != LDAP_REQ_ABANDON ) {
1142 so->s_op->o_cancel = SLAP_CANCEL_ACK;
1143 rs->sr_err = LDAP_CANCELLED;
1144 send_ldap_result( so->s_op, rs );
1145 if ( so->s_flags & PS_IS_DETACHED ) {
1147 cb = op->o_tmpcalloc( 1, sizeof(slap_callback), op->o_tmpmemctx );
1148 cb->sc_cleanup = syncprov_ab_cleanup;
1149 cb->sc_next = op->o_callback;
1150 cb->sc_private = so;
1151 return SLAP_CB_CONTINUE;
1154 syncprov_drop_psearch( so, 0 );
1156 return SLAP_CB_CONTINUE;
1159 /* Find which persistent searches are affected by this operation */
1161 syncprov_matchops( Operation *op, opcookie *opc, int saveit )
1163 slap_overinst *on = opc->son;
1164 syncprov_info_t *si = on->on_bi.bi_private;
1167 syncops *ss, *sprev, *snext;
1171 struct berval newdn;
1173 BackendDB *b0 = op->o_bd, db;
1175 fc.fdn = &op->o_req_ndn;
1176 /* compute new DN */
1177 if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1179 if ( op->orr_nnewSup ) pdn = *op->orr_nnewSup;
1180 else dnParent( fc.fdn, &pdn );
1181 build_new_dn( &newdn, &pdn, &op->orr_nnewrdn, op->o_tmpmemctx );
1185 if ( op->o_tag != LDAP_REQ_ADD ) {
1186 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1190 rc = overlay_entry_get_ov( op, fc.fdn, NULL, NULL, 0, &e, on );
1191 /* If we're sending responses now, make a copy and unlock the DB */
1192 if ( e && !saveit ) {
1194 opc->se = entry_dup( e );
1195 opc->se->e_private = get_mutexint();
1197 overlay_entry_release_ov( op, e, 0, on );
1208 opc->se = entry_dup( e );
1209 opc->se->e_private = get_mutexint();
1215 if ( saveit || op->o_tag == LDAP_REQ_ADD ) {
1216 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1217 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1218 opc->sreference = is_entry_referral( e );
1219 a = attr_find( e->e_attrs, slap_schema.si_ad_entryUUID );
1221 ber_dupbv_x( &opc->suuid, &a->a_nvals[0], op->o_tmpmemctx );
1222 } else if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1223 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1224 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1225 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1226 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1229 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1230 for (ss = si->si_ops, sprev = (syncops *)&si->si_ops; ss;
1231 sprev = ss, ss=snext)
1239 if ( ss->s_op->o_abandon )
1242 /* Don't send ops back to the originator */
1243 if ( opc->osid > 0 && opc->osid == ss->s_sid ) {
1244 Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping original sid %03x\n",
1249 /* Don't send ops back to the messenger */
1250 if ( opc->rsid > 0 && opc->rsid == ss->s_sid ) {
1251 Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping relayed sid %03x\n",
1261 /* If the base of the search is missing, signal a refresh */
1262 rc = syncprov_findbase( op, &fc );
1263 if ( rc != LDAP_SUCCESS ) {
1264 SlapReply rs = {REP_RESULT};
1265 send_ldap_error( ss->s_op, &rs, LDAP_SYNC_REFRESH_REQUIRED,
1266 "search base has changed" );
1267 sprev->s_next = snext;
1268 syncprov_drop_psearch( ss, 1 );
1273 /* If we're sending results now, look for this op in old matches */
1277 /* Did we modify the search base? */
1278 if ( dn_match( &op->o_req_ndn, &ss->s_base )) {
1279 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1280 ss->s_flags |= PS_WROTE_BASE;
1281 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1284 for ( sm=opc->smatches, old=(syncmatches *)&opc->smatches; sm;
1285 old=sm, sm=sm->sm_next ) {
1286 if ( sm->sm_op == ss ) {
1288 old->sm_next = sm->sm_next;
1289 op->o_tmpfree( sm, op->o_tmpmemctx );
1298 oh.oh_conn = ss->s_op->o_conn;
1299 oh.oh_connid = ss->s_op->o_connid;
1300 op2.o_bd = op->o_bd->bd_self;
1302 op2.o_extra = op->o_extra;
1303 op2.o_callback = NULL;
1304 rc = test_filter( &op2, e, ss->s_op->ors_filter );
1307 Debug( LDAP_DEBUG_TRACE, "syncprov_matchops: sid %03x fscope %d rc %d\n",
1308 ss->s_sid, fc.fscope, rc );
1310 /* check if current o_req_dn is in scope and matches filter */
1311 if ( fc.fscope && rc == LDAP_COMPARE_TRUE ) {
1313 sm = op->o_tmpalloc( sizeof(syncmatches), op->o_tmpmemctx );
1314 sm->sm_next = opc->smatches;
1316 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1318 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1321 /* if found send UPDATE else send ADD */
1322 syncprov_qresp( opc, ss,
1323 found ? LDAP_SYNC_MODIFY : LDAP_SYNC_ADD );
1325 } else if ( !saveit && found ) {
1327 syncprov_qresp( opc, ss, LDAP_SYNC_DELETE );
1328 } else if ( !saveit ) {
1329 syncprov_qresp( opc, ss, LDAP_SYNC_NEW_COOKIE );
1331 if ( !saveit && found ) {
1332 /* Decrement s_inuse, was incremented when called
1333 * with saveit == TRUE
1335 syncprov_free_syncop( ss );
1338 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1340 if ( op->o_tag != LDAP_REQ_ADD && e ) {
1341 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1345 overlay_entry_release_ov( op, e, 0, on );
1348 if ( opc->se && !saveit ) {
1349 if ( !dec_mutexint( opc->se->e_private )) {
1350 opc->se->e_private = NULL;
1351 entry_free( opc->se );
1356 op->o_tmpfree( fc.fdn->bv_val, op->o_tmpmemctx );
1362 syncprov_op_cleanup( Operation *op, SlapReply *rs )
1364 slap_callback *cb = op->o_callback;
1365 opcookie *opc = cb->sc_private;
1366 slap_overinst *on = opc->son;
1367 syncprov_info_t *si = on->on_bi.bi_private;
1368 syncmatches *sm, *snext;
1369 modtarget *mt, mtdummy;
1371 for (sm = opc->smatches; sm; sm=snext) {
1372 snext = sm->sm_next;
1373 syncprov_free_syncop( sm->sm_op );
1374 op->o_tmpfree( sm, op->o_tmpmemctx );
1377 /* Remove op from lock table */
1380 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1381 mt->mt_mods = mt->mt_mods->mi_next;
1382 /* If there are more, promote the next one */
1383 if ( mt->mt_mods ) {
1384 mt->mt_op = mt->mt_mods->mi_op;
1385 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1387 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1388 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1389 avl_delete( &si->si_mods, mt, sp_avl_cmp );
1390 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1391 ldap_pvt_thread_mutex_destroy( &mt->mt_mutex );
1395 if ( !BER_BVISNULL( &opc->suuid ))
1396 op->o_tmpfree( opc->suuid.bv_val, op->o_tmpmemctx );
1397 if ( !BER_BVISNULL( &opc->sndn ))
1398 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1399 if ( !BER_BVISNULL( &opc->sdn ))
1400 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1401 op->o_callback = cb->sc_next;
1402 op->o_tmpfree(cb, op->o_tmpmemctx);
1408 syncprov_checkpoint( Operation *op, SlapReply *rs, slap_overinst *on )
1410 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
1413 SlapReply rsm = { 0 };
1414 slap_callback cb = {0};
1418 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1421 for ( i=0; i<si->si_numcsns; i++ ) {
1422 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1425 mod.sml_numvals = si->si_numcsns;
1426 mod.sml_values = si->si_ctxcsn;
1427 mod.sml_nvalues = NULL;
1428 mod.sml_desc = slap_schema.si_ad_contextCSN;
1429 mod.sml_op = LDAP_MOD_REPLACE;
1430 mod.sml_flags = SLAP_MOD_INTERNAL;
1431 mod.sml_next = NULL;
1433 cb.sc_response = slap_null_cb;
1435 opm.o_tag = LDAP_REQ_MODIFY;
1436 opm.o_callback = &cb;
1437 opm.orm_modlist = &mod;
1438 opm.orm_no_opattrs = 1;
1439 if ( SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1440 be = *on->on_info->oi_origdb;
1443 opm.o_req_dn = si->si_contextdn;
1444 opm.o_req_ndn = si->si_contextdn;
1445 opm.o_bd->bd_info = on->on_info->oi_orig;
1446 opm.o_managedsait = SLAP_CONTROL_NONCRITICAL;
1447 opm.o_no_schema_check = 1;
1448 opm.o_bd->be_modify( &opm, &rsm );
1450 if ( rsm.sr_err == LDAP_NO_SUCH_OBJECT &&
1451 SLAP_SYNC_SUBENTRY( opm.o_bd )) {
1453 char txtbuf[SLAP_TEXT_BUFLEN];
1454 size_t textlen = sizeof txtbuf;
1455 Entry *e = slap_create_context_csn_entry( opm.o_bd, NULL );
1456 slap_mods2entry( &mod, &e, 0, 1, &text, txtbuf, textlen);
1458 opm.o_bd->be_add( &opm, &rsm );
1459 if ( e == opm.ora_e )
1460 be_entry_release_w( &opm, opm.ora_e );
1463 if ( mod.sml_next != NULL ) {
1464 slap_mods_free( mod.sml_next, 1 );
1467 for ( i=0; i<si->si_numcsns; i++ ) {
1468 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1474 syncprov_add_slog( Operation *op )
1476 opcookie *opc = op->o_callback->sc_private;
1477 slap_overinst *on = opc->son;
1478 syncprov_info_t *si = on->on_bi.bi_private;
1484 /* Allocate a record. UUIDs are not NUL-terminated. */
1485 se = ch_malloc( sizeof( slog_entry ) + opc->suuid.bv_len +
1486 op->o_csn.bv_len + 1 );
1488 se->se_tag = op->o_tag;
1490 se->se_uuid.bv_val = (char *)(&se[1]);
1491 AC_MEMCPY( se->se_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1492 se->se_uuid.bv_len = opc->suuid.bv_len;
1494 se->se_csn.bv_val = se->se_uuid.bv_val + opc->suuid.bv_len;
1495 AC_MEMCPY( se->se_csn.bv_val, op->o_csn.bv_val, op->o_csn.bv_len );
1496 se->se_csn.bv_val[op->o_csn.bv_len] = '\0';
1497 se->se_csn.bv_len = op->o_csn.bv_len;
1498 se->se_sid = slap_parse_csn_sid( &se->se_csn );
1500 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1501 if ( sl->sl_head ) {
1502 sl->sl_tail->se_next = se;
1508 while ( sl->sl_num > sl->sl_size ) {
1510 sl->sl_head = se->se_next;
1511 strcpy( sl->sl_mincsn.bv_val, se->se_csn.bv_val );
1512 sl->sl_mincsn.bv_len = se->se_csn.bv_len;
1516 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1520 /* Just set a flag if we found the matching entry */
1522 playlog_cb( Operation *op, SlapReply *rs )
1524 if ( rs->sr_type == REP_SEARCH ) {
1525 op->o_callback->sc_private = (void *)1;
1530 /* enter with sl->sl_mutex locked, release before returning */
1532 syncprov_playlog( Operation *op, SlapReply *rs, sessionlog *sl,
1533 sync_control *srs, BerVarray ctxcsn, int numcsns, int *sids )
1535 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1537 int i, j, ndel, num, nmods, mmods;
1538 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
1540 struct berval delcsn[2];
1542 if ( !sl->sl_num ) {
1543 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1551 uuids = op->o_tmpalloc( (num+1) * sizeof( struct berval ) +
1552 num * UUID_LEN, op->o_tmpmemctx );
1553 uuids[0].bv_val = (char *)(uuids + num + 1);
1555 delcsn[0].bv_len = 0;
1556 delcsn[0].bv_val = cbuf;
1557 BER_BVZERO(&delcsn[1]);
1559 /* Make a copy of the relevant UUIDs. Put the Deletes up front
1560 * and everything else at the end. Do this first so we can
1561 * unlock the list mutex.
1563 Debug( LDAP_DEBUG_SYNC, "srs csn %s\n",
1564 srs->sr_state.ctxcsn[0].bv_val, 0, 0 );
1565 for ( se=sl->sl_head; se; se=se->se_next ) {
1567 Debug( LDAP_DEBUG_SYNC, "log csn %s\n", se->se_csn.bv_val, 0, 0 );
1569 for ( k=0; k<srs->sr_state.numcsns; k++ ) {
1570 if ( se->se_sid == srs->sr_state.sids[k] ) {
1571 ndel = ber_bvcmp( &se->se_csn, &srs->sr_state.ctxcsn[k] );
1576 Debug( LDAP_DEBUG_SYNC, "cmp %d, too old\n", ndel, 0, 0 );
1580 for ( k=0; k<numcsns; k++ ) {
1581 if ( se->se_sid == sids[k] ) {
1582 ndel = ber_bvcmp( &se->se_csn, &ctxcsn[k] );
1587 Debug( LDAP_DEBUG_SYNC, "cmp %d, too new\n", ndel, 0, 0 );
1590 if ( se->se_tag == LDAP_REQ_DELETE ) {
1593 AC_MEMCPY( cbuf, se->se_csn.bv_val, se->se_csn.bv_len );
1594 delcsn[0].bv_len = se->se_csn.bv_len;
1595 delcsn[0].bv_val[delcsn[0].bv_len] = '\0';
1600 uuids[j].bv_val = uuids[0].bv_val + (j * UUID_LEN);
1601 AC_MEMCPY(uuids[j].bv_val, se->se_uuid.bv_val, UUID_LEN);
1602 uuids[j].bv_len = UUID_LEN;
1604 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1608 /* Zero out unused slots */
1609 for ( i=ndel; i < num - nmods; i++ )
1610 uuids[i].bv_len = 0;
1612 /* Mods must be validated to see if they belong in this delete set.
1616 /* Strip any duplicates */
1617 for ( i=0; i<nmods; i++ ) {
1618 for ( j=0; j<ndel; j++ ) {
1619 if ( bvmatch( &uuids[j], &uuids[num - 1 - i] )) {
1620 uuids[num - 1 - i].bv_len = 0;
1625 if ( uuids[num - 1 - i].bv_len == 0 ) continue;
1626 for ( j=0; j<i; j++ ) {
1627 if ( bvmatch( &uuids[num - 1 - j], &uuids[num - 1 - i] )) {
1628 uuids[num - 1 - i].bv_len = 0;
1637 SlapReply frs = { REP_RESULT };
1640 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
1641 slap_callback cb = {0};
1645 fop.o_sync_mode = 0;
1646 fop.o_callback = &cb;
1647 fop.ors_limit = NULL;
1648 fop.ors_tlimit = SLAP_NO_LIMIT;
1649 fop.ors_attrs = slap_anlist_all_attributes;
1650 fop.ors_attrsonly = 0;
1651 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
1653 af.f_choice = LDAP_FILTER_AND;
1656 mf.f_choice = LDAP_FILTER_EQUALITY;
1658 mf.f_av_desc = slap_schema.si_ad_entryUUID;
1659 mf.f_next = fop.ors_filter;
1661 fop.ors_filter = ⁡
1663 cb.sc_response = playlog_cb;
1664 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
1666 for ( i=ndel; i<num; i++ ) {
1667 if ( uuids[i].bv_len == 0 ) continue;
1669 mf.f_av_value = uuids[i];
1670 cb.sc_private = NULL;
1672 frs.sr_nentries = 0;
1673 rc = fop.o_bd->be_search( &fop, &frs );
1675 /* If entry was not found, add to delete list */
1676 if ( !cb.sc_private ) {
1677 uuids[ndel++] = uuids[i];
1680 fop.o_bd->bd_info = (BackendInfo *)on;
1683 struct berval cookie;
1685 if ( delcsn[0].bv_len ) {
1686 slap_compose_sync_cookie( op, &cookie, delcsn, srs->sr_state.rid,
1687 slap_serverID ? slap_serverID : -1 );
1689 Debug( LDAP_DEBUG_SYNC, "syncprov_playlog: cookie=%s\n", cookie.bv_val, 0, 0 );
1692 uuids[ndel].bv_val = NULL;
1693 syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET,
1694 delcsn[0].bv_len ? &cookie : NULL, 0, uuids, 1 );
1695 if ( delcsn[0].bv_len ) {
1696 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
1699 op->o_tmpfree( uuids, op->o_tmpmemctx );
1703 syncprov_op_response( Operation *op, SlapReply *rs )
1705 opcookie *opc = op->o_callback->sc_private;
1706 slap_overinst *on = opc->son;
1707 syncprov_info_t *si = on->on_bi.bi_private;
1710 if ( rs->sr_err == LDAP_SUCCESS )
1712 struct berval maxcsn;
1713 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
1714 int do_check = 0, have_psearches, foundit, csn_changed = 0;
1716 ldap_pvt_thread_mutex_lock( &si->si_resp_mutex );
1718 /* Update our context CSN */
1720 maxcsn.bv_val = cbuf;
1721 maxcsn.bv_len = sizeof(cbuf);
1722 ldap_pvt_thread_rdwr_wlock( &si->si_csn_rwlock );
1724 slap_get_commit_csn( op, &maxcsn, &foundit );
1725 if ( BER_BVISEMPTY( &maxcsn ) && SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1726 /* syncrepl queues the CSN values in the db where
1727 * it is configured , not where the changes are made.
1728 * So look for a value in the glue db if we didn't
1729 * find any in this db.
1731 BackendDB *be = op->o_bd;
1732 op->o_bd = select_backend( &be->be_nsuffix[0], 1);
1733 maxcsn.bv_val = cbuf;
1734 maxcsn.bv_len = sizeof(cbuf);
1735 slap_get_commit_csn( op, &maxcsn, &foundit );
1738 if ( !BER_BVISEMPTY( &maxcsn ) ) {
1741 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1742 assert( !syn->ssyn_validate( syn, &maxcsn ));
1744 sid = slap_parse_csn_sid( &maxcsn );
1745 for ( i=0; i<si->si_numcsns; i++ ) {
1746 if ( sid == si->si_sids[i] ) {
1747 if ( ber_bvcmp( &maxcsn, &si->si_ctxcsn[i] ) > 0 ) {
1748 ber_bvreplace( &si->si_ctxcsn[i], &maxcsn );
1754 /* It's a new SID for us */
1755 if ( i == si->si_numcsns ) {
1756 value_add_one( &si->si_ctxcsn, &maxcsn );
1759 si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
1761 si->si_sids[i] = sid;
1765 /* Don't do any processing for consumer contextCSN updates */
1766 if ( op->o_dont_replicate ) {
1767 if ( op->o_tag == LDAP_REQ_MODIFY &&
1768 op->orm_modlist->sml_op == LDAP_MOD_REPLACE &&
1769 op->orm_modlist->sml_desc == slap_schema.si_ad_contextCSN ) {
1770 /* Catch contextCSN updates from syncrepl. We have to look at
1771 * all the attribute values, as there may be more than one csn
1772 * that changed, and only one can be passed in the csn queue.
1774 Modifications *mod = op->orm_modlist;
1777 for ( i=0; i<mod->sml_numvals; i++ ) {
1778 sid = slap_parse_csn_sid( &mod->sml_values[i] );
1779 for ( j=0; j<si->si_numcsns; j++ ) {
1780 if ( sid == si->si_sids[j] ) {
1781 if ( ber_bvcmp( &mod->sml_values[i], &si->si_ctxcsn[j] ) > 0 ) {
1782 ber_bvreplace( &si->si_ctxcsn[j], &mod->sml_values[i] );
1789 if ( j == si->si_numcsns ) {
1790 value_add_one( &si->si_ctxcsn, &mod->sml_values[i] );
1792 si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
1794 si->si_sids[j] = sid;
1798 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1800 if ( csn_changed ) {
1801 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1802 have_psearches = ( si->si_ops != NULL );
1803 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1805 if ( have_psearches ) {
1806 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1807 if ( sm->sm_op->s_op->o_abandon )
1809 syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_NEW_COOKIE );
1814 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1820 if ( si->si_chkops || si->si_chktime ) {
1821 /* Never checkpoint adding the context entry,
1824 if ( op->o_tag != LDAP_REQ_ADD ||
1825 !dn_match( &op->o_req_ndn, &si->si_contextdn )) {
1826 if ( si->si_chkops && si->si_numops >= si->si_chkops ) {
1830 if ( si->si_chktime &&
1831 (op->o_time - si->si_chklast >= si->si_chktime )) {
1832 if ( si->si_chklast ) {
1834 si->si_chklast = op->o_time;
1841 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1844 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1845 syncprov_checkpoint( op, rs, on );
1846 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1849 /* only update consumer ctx if this is a newer csn */
1850 if ( csn_changed ) {
1851 opc->sctxcsn = maxcsn;
1854 /* Handle any persistent searches */
1855 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1856 have_psearches = ( si->si_ops != NULL );
1857 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1858 if ( have_psearches ) {
1861 case LDAP_REQ_MODIFY:
1862 case LDAP_REQ_MODRDN:
1863 case LDAP_REQ_EXTENDED:
1864 syncprov_matchops( op, opc, 0 );
1866 case LDAP_REQ_DELETE:
1867 /* for each match in opc->smatches:
1870 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1871 if ( sm->sm_op->s_op->o_abandon )
1873 syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_DELETE );
1879 /* Add any log records */
1880 if ( si->si_logs && op->o_tag != LDAP_REQ_ADD ) {
1881 syncprov_add_slog( op );
1883 leave: ldap_pvt_thread_mutex_unlock( &si->si_resp_mutex );
1885 return SLAP_CB_CONTINUE;
1888 /* We don't use a subentry to store the context CSN any more.
1889 * We expose the current context CSN as an operational attribute
1890 * of the suffix entry.
1893 syncprov_op_compare( Operation *op, SlapReply *rs )
1895 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1896 syncprov_info_t *si = on->on_bi.bi_private;
1897 int rc = SLAP_CB_CONTINUE;
1899 if ( dn_match( &op->o_req_ndn, &si->si_contextdn ) &&
1900 op->oq_compare.rs_ava->aa_desc == slap_schema.si_ad_contextCSN )
1905 e.e_name = si->si_contextdn;
1906 e.e_nname = si->si_contextdn;
1909 a.a_desc = slap_schema.si_ad_contextCSN;
1911 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1913 a.a_vals = si->si_ctxcsn;
1914 a.a_nvals = a.a_vals;
1915 a.a_numvals = si->si_numcsns;
1917 rs->sr_err = access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc,
1918 &op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL );
1919 if ( ! rs->sr_err ) {
1920 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1921 goto return_results;
1924 if ( get_assert( op ) &&
1925 ( test_filter( op, &e, get_assertion( op ) ) != LDAP_COMPARE_TRUE ) )
1927 rs->sr_err = LDAP_ASSERTION_FAILED;
1928 goto return_results;
1932 rs->sr_err = LDAP_COMPARE_FALSE;
1934 if ( attr_valfind( &a,
1935 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
1936 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
1937 &op->oq_compare.rs_ava->aa_value, NULL, op->o_tmpmemctx ) == 0 )
1939 rs->sr_err = LDAP_COMPARE_TRUE;
1944 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1946 send_ldap_result( op, rs );
1948 if( rs->sr_err == LDAP_COMPARE_FALSE || rs->sr_err == LDAP_COMPARE_TRUE ) {
1949 rs->sr_err = LDAP_SUCCESS;
1958 syncprov_op_mod( Operation *op, SlapReply *rs )
1960 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1961 syncprov_info_t *si = on->on_bi.bi_private;
1964 int have_psearches, cbsize;
1966 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1967 have_psearches = ( si->si_ops != NULL );
1968 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1970 cbsize = sizeof(slap_callback) + sizeof(opcookie) +
1971 (have_psearches ? sizeof(modinst) : 0 );
1973 cb = op->o_tmpcalloc(1, cbsize, op->o_tmpmemctx);
1974 opc = (opcookie *)(cb+1);
1976 cb->sc_response = syncprov_op_response;
1977 cb->sc_cleanup = syncprov_op_cleanup;
1978 cb->sc_private = opc;
1979 cb->sc_next = op->o_callback;
1980 op->o_callback = cb;
1984 if ( op->o_csn.bv_val ) {
1985 opc->osid = slap_parse_csn_sid( &op->o_csn );
1987 if ( op->o_controls ) {
1988 struct sync_cookie *scook =
1989 op->o_controls[slap_cids.sc_LDAPsync];
1991 opc->rsid = scook->sid;
1994 /* If there are active persistent searches, lock this operation.
1995 * See seqmod.c for the locking logic on its own.
1997 if ( have_psearches ) {
1998 modtarget *mt, mtdummy;
2001 mi = (modinst *)(opc+1);
2004 /* See if we're already modifying this entry... */
2006 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
2007 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
2009 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
2010 if ( mt->mt_mods == NULL ) {
2011 /* Cannot reuse this mt, as another thread is about
2012 * to release it in syncprov_op_cleanup.
2014 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2019 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
2020 mt->mt_tail->mi_next = mi;
2022 /* wait for this op to get to head of list */
2023 while ( mt->mt_mods != mi ) {
2024 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2025 /* FIXME: if dynamic config can delete overlays or
2026 * databases we'll have to check for cleanup here.
2027 * Currently it's not an issue because there are
2028 * no dynamic config deletes...
2030 if ( slapd_shutdown )
2031 return SLAPD_ABANDON;
2033 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
2034 ldap_pvt_thread_yield();
2035 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
2037 /* clean up if the caller is giving up */
2038 if ( op->o_abandon ) {
2040 for ( m2 = mt->mt_mods; m2->mi_next != mi;
2042 m2->mi_next = mi->mi_next;
2043 if ( mt->mt_tail == mi ) mt->mt_tail = m2;
2044 op->o_tmpfree( cb, op->o_tmpmemctx );
2045 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2046 return SLAPD_ABANDON;
2049 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2051 /* Record that we're modifying this entry now */
2052 mt = ch_malloc( sizeof(modtarget) );
2055 mt->mt_op = mi->mi_op;
2056 ldap_pvt_thread_mutex_init( &mt->mt_mutex );
2057 avl_insert( &si->si_mods, mt, sp_avl_cmp, avl_dup_error );
2058 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
2063 if (( have_psearches || si->si_logs ) && op->o_tag != LDAP_REQ_ADD )
2064 syncprov_matchops( op, opc, 1 );
2066 return SLAP_CB_CONTINUE;
2070 syncprov_op_extended( Operation *op, SlapReply *rs )
2072 if ( exop_is_write( op ))
2073 return syncprov_op_mod( op, rs );
2075 return SLAP_CB_CONTINUE;
2078 typedef struct searchstate {
2079 slap_overinst *ss_on;
2081 BerVarray ss_ctxcsn;
2084 #define SS_PRESENT 0x01
2085 #define SS_CHANGED 0x02
2090 syncprov_search_cleanup( Operation *op, SlapReply *rs )
2092 if ( rs->sr_ctrls ) {
2093 op->o_tmpfree( rs->sr_ctrls[0], op->o_tmpmemctx );
2094 op->o_tmpfree( rs->sr_ctrls, op->o_tmpmemctx );
2095 rs->sr_ctrls = NULL;
2100 typedef struct SyncOperationBuffer {
2104 AttributeName sob_extra; /* not always present */
2105 /* Further data allocated here */
2106 } SyncOperationBuffer;
2109 syncprov_detach_op( Operation *op, syncops *so, slap_overinst *on )
2111 SyncOperationBuffer *sopbuf2;
2116 GroupAssertion *g1, *g2;
2118 /* count the search attrs */
2119 for (i=0; op->ors_attrs && !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2120 alen += op->ors_attrs[i].an_name.bv_len + 1;
2122 /* Make a new copy of the operation */
2123 size = offsetof( SyncOperationBuffer, sob_extra ) +
2124 (i ? ( (i+1) * sizeof(AttributeName) + alen) : 0) +
2125 op->o_req_dn.bv_len + 1 +
2126 op->o_req_ndn.bv_len + 1 +
2127 op->o_ndn.bv_len + 1 +
2128 so->s_filterstr.bv_len + 1;
2129 sopbuf2 = ch_calloc( 1, size );
2130 op2 = &sopbuf2->sob_op;
2131 op2->o_hdr = &sopbuf2->sob_hdr;
2132 LDAP_SLIST_FIRST(&op2->o_extra) = &sopbuf2->sob_oe;
2134 /* Copy the fields we care about explicitly, leave the rest alone */
2135 *op2->o_hdr = *op->o_hdr;
2136 op2->o_tag = op->o_tag;
2137 op2->o_time = op->o_time;
2138 op2->o_bd = on->on_info->oi_origdb;
2139 op2->o_request = op->o_request;
2140 op2->o_managedsait = op->o_managedsait;
2141 LDAP_SLIST_FIRST(&op2->o_extra)->oe_key = on;
2142 LDAP_SLIST_NEXT(LDAP_SLIST_FIRST(&op2->o_extra), oe_next) = NULL;
2144 ptr = (char *) sopbuf2 + offsetof( SyncOperationBuffer, sob_extra );
2146 op2->ors_attrs = (AttributeName *) ptr;
2147 ptr = (char *) &op2->ors_attrs[i+1];
2148 for (i=0; !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2149 op2->ors_attrs[i] = op->ors_attrs[i];
2150 op2->ors_attrs[i].an_name.bv_val = ptr;
2151 ptr = lutil_strcopy( ptr, op->ors_attrs[i].an_name.bv_val ) + 1;
2153 BER_BVZERO( &op2->ors_attrs[i].an_name );
2156 op2->o_authz = op->o_authz;
2157 op2->o_ndn.bv_val = ptr;
2158 ptr = lutil_strcopy(ptr, op->o_ndn.bv_val) + 1;
2159 op2->o_dn = op2->o_ndn;
2160 op2->o_req_dn.bv_len = op->o_req_dn.bv_len;
2161 op2->o_req_dn.bv_val = ptr;
2162 ptr = lutil_strcopy(ptr, op->o_req_dn.bv_val) + 1;
2163 op2->o_req_ndn.bv_len = op->o_req_ndn.bv_len;
2164 op2->o_req_ndn.bv_val = ptr;
2165 ptr = lutil_strcopy(ptr, op->o_req_ndn.bv_val) + 1;
2166 op2->ors_filterstr.bv_val = ptr;
2167 strcpy( ptr, so->s_filterstr.bv_val );
2168 op2->ors_filterstr.bv_len = so->s_filterstr.bv_len;
2170 /* Skip the AND/GE clause that we stuck on in front */
2171 if ( so->s_flags & PS_FIX_FILTER ) {
2172 op2->ors_filter = op->ors_filter->f_and->f_next;
2173 so->s_flags ^= PS_FIX_FILTER;
2175 op2->ors_filter = op->ors_filter;
2177 op2->ors_filter = filter_dup( op2->ors_filter, NULL );
2180 /* Copy any cached group ACLs individually */
2181 op2->o_groups = NULL;
2182 for ( g1=op->o_groups; g1; g1=g1->ga_next ) {
2183 g2 = ch_malloc( sizeof(GroupAssertion) + g1->ga_len );
2185 strcpy( g2->ga_ndn, g1->ga_ndn );
2186 g2->ga_next = op2->o_groups;
2189 /* Don't allow any further group caching */
2190 op2->o_do_not_cache = 1;
2192 /* Add op2 to conn so abandon will find us */
2193 op->o_conn->c_n_ops_executing++;
2194 op->o_conn->c_n_ops_completed--;
2195 LDAP_STAILQ_INSERT_TAIL( &op->o_conn->c_ops, op2, o_next );
2196 so->s_flags |= PS_IS_DETACHED;
2198 /* Prevent anyone else from trying to send a result for this op */
2203 syncprov_search_response( Operation *op, SlapReply *rs )
2205 searchstate *ss = op->o_callback->sc_private;
2206 slap_overinst *on = ss->ss_on;
2207 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2208 sync_control *srs = op->o_controls[slap_cids.sc_LDAPsync];
2210 if ( rs->sr_type == REP_SEARCH || rs->sr_type == REP_SEARCHREF ) {
2212 /* If we got a referral without a referral object, there's
2213 * something missing that we cannot replicate. Just ignore it.
2214 * The consumer will abort because we didn't send the expected
2217 if ( !rs->sr_entry ) {
2218 assert( rs->sr_entry != NULL );
2219 Debug( LDAP_DEBUG_ANY, "bogus referral in context\n",0,0,0 );
2220 return SLAP_CB_CONTINUE;
2222 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryCSN );
2223 if ( a == NULL && rs->sr_operational_attrs != NULL ) {
2224 a = attr_find( rs->sr_operational_attrs, slap_schema.si_ad_entryCSN );
2228 sid = slap_parse_csn_sid( &a->a_nvals[0] );
2230 /* Don't send changed entries back to the originator */
2231 if ( sid == srs->sr_state.sid && srs->sr_state.numcsns ) {
2232 Debug( LDAP_DEBUG_SYNC,
2233 "Entry %s changed by peer, ignored\n",
2234 rs->sr_entry->e_name.bv_val, 0, 0 );
2235 return LDAP_SUCCESS;
2238 /* If not a persistent search */
2240 /* Make sure entry is less than the snapshot'd contextCSN */
2241 for ( i=0; i<ss->ss_numcsns; i++ ) {
2242 if ( sid == ss->ss_sids[i] && ber_bvcmp( &a->a_nvals[0],
2243 &ss->ss_ctxcsn[i] ) > 0 ) {
2244 Debug( LDAP_DEBUG_SYNC,
2245 "Entry %s CSN %s greater than snapshot %s\n",
2246 rs->sr_entry->e_name.bv_val,
2247 a->a_nvals[0].bv_val,
2248 ss->ss_ctxcsn[i].bv_val );
2249 return LDAP_SUCCESS;
2254 /* Don't send old entries twice */
2255 if ( srs->sr_state.ctxcsn ) {
2256 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2257 if ( sid == srs->sr_state.sids[i] &&
2258 ber_bvcmp( &a->a_nvals[0],
2259 &srs->sr_state.ctxcsn[i] )<= 0 ) {
2260 Debug( LDAP_DEBUG_SYNC,
2261 "Entry %s CSN %s older or equal to ctx %s\n",
2262 rs->sr_entry->e_name.bv_val,
2263 a->a_nvals[0].bv_val,
2264 srs->sr_state.ctxcsn[i].bv_val );
2265 return LDAP_SUCCESS;
2270 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2272 rs->sr_ctrls[1] = NULL;
2273 /* If we're in delta-sync mode, always send a cookie */
2274 if ( si->si_nopres && si->si_usehint && a ) {
2275 struct berval cookie;
2276 slap_compose_sync_cookie( op, &cookie, a->a_nvals, srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
2277 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2278 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 1, &cookie );
2280 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2281 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 0, NULL );
2283 } else if ( rs->sr_type == REP_RESULT && rs->sr_err == LDAP_SUCCESS ) {
2284 struct berval cookie = BER_BVNULL;
2286 if ( ( ss->ss_flags & SS_CHANGED ) &&
2287 ss->ss_ctxcsn && !BER_BVISNULL( &ss->ss_ctxcsn[0] )) {
2288 slap_compose_sync_cookie( op, &cookie, ss->ss_ctxcsn,
2289 srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
2291 Debug( LDAP_DEBUG_SYNC, "syncprov_search_response: cookie=%s\n", cookie.bv_val, 0, 0 );
2294 /* Is this a regular refresh?
2295 * Note: refresh never gets here if there were no changes
2298 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2300 rs->sr_ctrls[1] = NULL;
2301 rs->sr_err = syncprov_done_ctrl( op, rs, rs->sr_ctrls,
2302 0, 1, &cookie, ( ss->ss_flags & SS_PRESENT ) ? LDAP_SYNC_REFRESH_PRESENTS :
2303 LDAP_SYNC_REFRESH_DELETES );
2304 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2306 /* It's RefreshAndPersist, transition to Persist phase */
2307 syncprov_sendinfo( op, rs, ( ss->ss_flags & SS_PRESENT ) ?
2308 LDAP_TAG_SYNC_REFRESH_PRESENT : LDAP_TAG_SYNC_REFRESH_DELETE,
2309 ( ss->ss_flags & SS_CHANGED ) ? &cookie : NULL,
2311 if ( !BER_BVISNULL( &cookie ))
2312 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2314 /* Detach this Op from frontend control */
2315 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
2317 /* But not if this connection was closed along the way */
2318 if ( op->o_abandon ) {
2319 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2320 /* syncprov_ab_cleanup will free this syncop */
2321 return SLAPD_ABANDON;
2324 ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex );
2325 /* Turn off the refreshing flag */
2326 ss->ss_so->s_flags ^= PS_IS_REFRESHING;
2328 syncprov_detach_op( op, ss->ss_so, on );
2330 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2332 /* If there are queued responses, fire them off */
2333 if ( ss->ss_so->s_res )
2334 syncprov_qstart( ss->ss_so );
2335 ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
2338 return LDAP_SUCCESS;
2342 return SLAP_CB_CONTINUE;
2346 syncprov_op_search( Operation *op, SlapReply *rs )
2348 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2349 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2351 int gotstate = 0, changed = 0, do_present = 0;
2352 syncops *sop = NULL;
2356 int i, *sids, numcsns;
2357 struct berval mincsn;
2359 if ( !(op->o_sync_mode & SLAP_SYNC_REFRESH) ) return SLAP_CB_CONTINUE;
2361 if ( op->ors_deref & LDAP_DEREF_SEARCHING ) {
2362 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR, "illegal value for derefAliases" );
2366 srs = op->o_controls[slap_cids.sc_LDAPsync];
2368 /* If this is a persistent search, set it up right away */
2369 if ( op->o_sync_mode & SLAP_SYNC_PERSIST ) {
2379 so.s_flags = PS_IS_REFRESHING | PS_FIND_BASE;
2380 /* syncprov_findbase expects to be called as a callback... */
2381 sc.sc_private = &opc;
2383 ldap_pvt_thread_mutex_init( &so.s_mutex );
2384 cb = op->o_callback;
2385 op->o_callback = ≻
2386 rs->sr_err = syncprov_findbase( op, &fc );
2387 op->o_callback = cb;
2388 ldap_pvt_thread_mutex_destroy( &so.s_mutex );
2390 if ( rs->sr_err != LDAP_SUCCESS ) {
2391 send_ldap_result( op, rs );
2394 sop = ch_malloc( sizeof( syncops ));
2396 ldap_pvt_thread_mutex_init( &sop->s_mutex );
2397 sop->s_rid = srs->sr_state.rid;
2398 sop->s_sid = srs->sr_state.sid;
2401 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2402 sop->s_next = si->si_ops;
2404 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2407 /* snapshot the ctxcsn */
2408 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2409 numcsns = si->si_numcsns;
2411 ber_bvarray_dup_x( &ctxcsn, si->si_ctxcsn, op->o_tmpmemctx );
2412 sids = op->o_tmpalloc( numcsns * sizeof(int), op->o_tmpmemctx );
2413 for ( i=0; i<numcsns; i++ )
2414 sids[i] = si->si_sids[i];
2419 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2421 /* If we have a cookie, handle the PRESENT lookups */
2422 if ( srs->sr_state.ctxcsn ) {
2426 /* If we don't have any CSN of our own yet, pretend nothing
2432 if ( !si->si_nopres )
2433 do_present = SS_PRESENT;
2435 /* If there are SIDs we don't recognize in the cookie, drop them */
2436 for (i=0; i<srs->sr_state.numcsns; ) {
2437 for (j=0; j<numcsns; j++) {
2438 if ( srs->sr_state.sids[i] == sids[j] ) {
2443 if ( j == numcsns ) {
2444 struct berval tmp = srs->sr_state.ctxcsn[i];
2445 j = srs->sr_state.numcsns - 1;
2446 srs->sr_state.ctxcsn[i] = srs->sr_state.ctxcsn[j];
2448 srs->sr_state.ctxcsn[j] = tmp;
2449 srs->sr_state.numcsns = j;
2450 srs->sr_state.sids[i] = srs->sr_state.sids[j];
2456 /* Find the smallest CSN */
2457 mincsn = srs->sr_state.ctxcsn[0];
2458 for ( i=1; i<srs->sr_state.numcsns; i++ ) {
2459 if ( ber_bvcmp( &mincsn, &srs->sr_state.ctxcsn[i] ) > 0 )
2460 mincsn = srs->sr_state.ctxcsn[i];
2463 /* If nothing has changed, shortcut it */
2464 if ( srs->sr_state.numcsns == numcsns ) {
2466 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2467 for ( j=0; j<numcsns; j++ ) {
2468 if ( srs->sr_state.sids[i] != sids[j] )
2470 newer = ber_bvcmp( &srs->sr_state.ctxcsn[i], &ctxcsn[j] );
2471 /* If our state is newer, tell consumer about changes */
2473 changed = SS_CHANGED;
2474 else if ( newer > 0 ) {
2475 /* our state is older, tell consumer nothing */
2477 syncops **sp = &si->si_ops;
2479 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2480 while ( *sp != sop )
2481 sp = &(*sp)->s_next;
2483 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2486 rs->sr_err = LDAP_SUCCESS;
2487 rs->sr_ctrls = NULL;
2488 send_ldap_result( op, rs );
2498 no_change: if ( !(op->o_sync_mode & SLAP_SYNC_PERSIST) ) {
2499 LDAPControl *ctrls[2];
2503 syncprov_done_ctrl( op, rs, ctrls, 0, 0,
2504 NULL, LDAP_SYNC_REFRESH_DELETES );
2505 rs->sr_ctrls = ctrls;
2506 rs->sr_err = LDAP_SUCCESS;
2507 send_ldap_result( op, rs );
2508 rs->sr_ctrls = NULL;
2514 /* consumer doesn't have the right number of CSNs */
2515 changed = SS_CHANGED;
2517 /* Do we have a sessionlog for this search? */
2520 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
2521 /* Are there any log entries, and is the consumer state
2522 * present in the session log?
2524 if ( sl->sl_num > 0 && ber_bvcmp( &mincsn, &sl->sl_mincsn ) >= 0 ) {
2526 /* mutex is unlocked in playlog */
2527 syncprov_playlog( op, rs, sl, srs, ctxcsn, numcsns, sids );
2529 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
2532 /* Is the CSN still present in the database? */
2533 if ( syncprov_findcsn( op, FIND_CSN ) != LDAP_SUCCESS ) {
2534 /* No, so a reload is required */
2535 /* the 2.2 consumer doesn't send this hint */
2536 if ( si->si_usehint && srs->sr_rhint == 0 ) {
2538 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2540 op->o_tmpfree( sids, op->o_tmpmemctx );
2541 send_ldap_error( op, rs, LDAP_SYNC_REFRESH_REQUIRED, "sync cookie is stale" );
2544 if ( srs->sr_state.ctxcsn ) {
2545 ber_bvarray_free_x( srs->sr_state.ctxcsn, op->o_tmpmemctx );
2546 srs->sr_state.ctxcsn = NULL;
2548 if ( srs->sr_state.sids ) {
2549 slap_sl_free( srs->sr_state.sids, op->o_tmpmemctx );
2550 srs->sr_state.sids = NULL;
2552 srs->sr_state.numcsns = 0;
2555 /* If changed and doing Present lookup, send Present UUIDs */
2556 if ( do_present && syncprov_findcsn( op, FIND_PRESENT ) !=
2559 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2561 op->o_tmpfree( sids, op->o_tmpmemctx );
2562 send_ldap_result( op, rs );
2567 /* No consumer state, assume something has changed */
2568 changed = SS_CHANGED;
2572 /* Append CSN range to search filter, save original filter
2573 * for persistent search evaluation
2576 sop->s_filterstr= op->ors_filterstr;
2579 /* If something changed, find the changes */
2580 if ( gotstate && changed ) {
2581 Filter *fand, *fava;
2583 fand = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2584 fand->f_choice = LDAP_FILTER_AND;
2585 fand->f_next = NULL;
2586 fava = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2588 fava->f_choice = LDAP_FILTER_GE;
2589 fava->f_ava = op->o_tmpalloc( sizeof(AttributeAssertion), op->o_tmpmemctx );
2590 fava->f_ava->aa_desc = slap_schema.si_ad_entryCSN;
2591 #ifdef LDAP_COMP_MATCH
2592 fava->f_ava->aa_cf = NULL;
2594 ber_dupbv_x( &fava->f_ava->aa_value, &mincsn, op->o_tmpmemctx );
2595 fava->f_next = op->ors_filter;
2596 op->ors_filter = fand;
2597 filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2599 sop->s_flags |= PS_FIX_FILTER;
2602 /* Let our callback add needed info to returned entries */
2603 cb = op->o_tmpcalloc(1, sizeof(slap_callback)+sizeof(searchstate), op->o_tmpmemctx);
2604 ss = (searchstate *)(cb+1);
2607 ss->ss_flags = do_present | changed;
2608 ss->ss_ctxcsn = ctxcsn;
2609 ss->ss_numcsns = numcsns;
2611 cb->sc_response = syncprov_search_response;
2612 cb->sc_cleanup = syncprov_search_cleanup;
2613 cb->sc_private = ss;
2614 cb->sc_next = op->o_callback;
2615 op->o_callback = cb;
2617 /* If this is a persistent search and no changes were reported during
2618 * the refresh phase, just invoke the response callback to transition
2619 * us into persist phase
2622 rs->sr_err = LDAP_SUCCESS;
2623 rs->sr_nentries = 0;
2624 send_ldap_result( op, rs );
2627 return SLAP_CB_CONTINUE;
2631 syncprov_operational(
2635 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2636 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2638 /* This prevents generating unnecessarily; frontend will strip
2639 * any statically stored copy.
2641 if ( op->o_sync != SLAP_CONTROL_NONE )
2642 return SLAP_CB_CONTINUE;
2644 if ( rs->sr_entry &&
2645 dn_match( &rs->sr_entry->e_nname, &si->si_contextdn )) {
2647 if ( SLAP_OPATTRS( rs->sr_attr_flags ) ||
2648 ad_inlist( slap_schema.si_ad_contextCSN, rs->sr_attrs )) {
2649 Attribute *a, **ap = NULL;
2651 for ( a=rs->sr_entry->e_attrs; a; a=a->a_next ) {
2652 if ( a->a_desc == slap_schema.si_ad_contextCSN )
2656 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2657 if ( si->si_ctxcsn ) {
2659 for ( ap = &rs->sr_operational_attrs; *ap;
2660 ap=&(*ap)->a_next );
2662 a = attr_alloc( slap_schema.si_ad_contextCSN );
2667 if ( !(rs->sr_flags & REP_ENTRY_MODIFIABLE) ) {
2668 Entry *e = entry_dup( rs->sr_entry );
2669 if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
2670 overlay_entry_release_ov( op, rs->sr_entry, 0, on );
2671 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
2672 } else if ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) {
2673 entry_free( rs->sr_entry );
2677 REP_ENTRY_MODIFIABLE|REP_ENTRY_MUSTBEFREED;
2678 a = attr_find( rs->sr_entry->e_attrs,
2679 slap_schema.si_ad_contextCSN );
2681 if ( a->a_nvals != a->a_vals ) {
2682 ber_bvarray_free( a->a_nvals );
2685 ber_bvarray_free( a->a_vals );
2689 attr_valadd( a, si->si_ctxcsn, si->si_ctxcsn, si->si_numcsns );
2691 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2694 return SLAP_CB_CONTINUE;
2704 static ConfigDriver sp_cf_gen;
2706 static ConfigTable spcfg[] = {
2707 { "syncprov-checkpoint", "ops> <minutes", 3, 3, 0, ARG_MAGIC|SP_CHKPT,
2708 sp_cf_gen, "( OLcfgOvAt:1.1 NAME 'olcSpCheckpoint' "
2709 "DESC 'ContextCSN checkpoint interval in ops and minutes' "
2710 "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
2711 { "syncprov-sessionlog", "ops", 2, 2, 0, ARG_INT|ARG_MAGIC|SP_SESSL,
2712 sp_cf_gen, "( OLcfgOvAt:1.2 NAME 'olcSpSessionlog' "
2713 "DESC 'Session log size in ops' "
2714 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
2715 { "syncprov-nopresent", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_NOPRES,
2716 sp_cf_gen, "( OLcfgOvAt:1.3 NAME 'olcSpNoPresent' "
2717 "DESC 'Omit Present phase processing' "
2718 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2719 { "syncprov-reloadhint", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_USEHINT,
2720 sp_cf_gen, "( OLcfgOvAt:1.4 NAME 'olcSpReloadHint' "
2721 "DESC 'Observe Reload Hint in Request control' "
2722 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2723 { NULL, NULL, 0, 0, 0, ARG_IGNORED }
2726 static ConfigOCs spocs[] = {
2727 { "( OLcfgOvOc:1.1 "
2728 "NAME 'olcSyncProvConfig' "
2729 "DESC 'SyncRepl Provider configuration' "
2730 "SUP olcOverlayConfig "
2731 "MAY ( olcSpCheckpoint "
2732 "$ olcSpSessionlog "
2734 "$ olcSpReloadHint "
2736 Cft_Overlay, spcfg },
2741 sp_cf_gen(ConfigArgs *c)
2743 slap_overinst *on = (slap_overinst *)c->bi;
2744 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2747 if ( c->op == SLAP_CONFIG_EMIT ) {
2748 switch ( c->type ) {
2750 if ( si->si_chkops || si->si_chktime ) {
2752 /* we assume si_chktime is a multiple of 60
2753 * because the parsed value was originally
2754 * multiplied by 60 */
2755 bv.bv_len = snprintf( c->cr_msg, sizeof( c->cr_msg ),
2756 "%d %d", si->si_chkops, si->si_chktime/60 );
2757 if ( bv.bv_len >= sizeof( c->cr_msg ) ) {
2760 bv.bv_val = c->cr_msg;
2761 value_add_one( &c->rvalue_vals, &bv );
2768 if ( si->si_logs ) {
2769 c->value_int = si->si_logs->sl_size;
2775 if ( si->si_nopres ) {
2782 if ( si->si_usehint ) {
2790 } else if ( c->op == LDAP_MOD_DELETE ) {
2791 switch ( c->type ) {
2798 si->si_logs->sl_size = 0;
2800 rc = LDAP_NO_SUCH_ATTRIBUTE;
2803 if ( si->si_nopres )
2806 rc = LDAP_NO_SUCH_ATTRIBUTE;
2809 if ( si->si_usehint )
2812 rc = LDAP_NO_SUCH_ATTRIBUTE;
2817 switch ( c->type ) {
2819 if ( lutil_atoi( &si->si_chkops, c->argv[1] ) != 0 ) {
2820 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint ops # \"%s\"",
2821 c->argv[0], c->argv[1] );
2822 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2823 "%s: %s\n", c->log, c->cr_msg, 0 );
2824 return ARG_BAD_CONF;
2826 if ( si->si_chkops <= 0 ) {
2827 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint ops # \"%d\"",
2828 c->argv[0], si->si_chkops );
2829 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2830 "%s: %s\n", c->log, c->cr_msg, 0 );
2831 return ARG_BAD_CONF;
2833 if ( lutil_atoi( &si->si_chktime, c->argv[2] ) != 0 ) {
2834 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint time \"%s\"",
2835 c->argv[0], c->argv[1] );
2836 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2837 "%s: %s\n", c->log, c->cr_msg, 0 );
2838 return ARG_BAD_CONF;
2840 if ( si->si_chktime <= 0 ) {
2841 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint time \"%d\"",
2842 c->argv[0], si->si_chkops );
2843 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2844 "%s: %s\n", c->log, c->cr_msg, 0 );
2845 return ARG_BAD_CONF;
2847 si->si_chktime *= 60;
2851 int size = c->value_int;
2854 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s size %d is negative",
2856 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2857 "%s: %s\n", c->log, c->cr_msg, 0 );
2858 return ARG_BAD_CONF;
2862 sl = ch_malloc( sizeof( sessionlog ) + LDAP_PVT_CSNSTR_BUFSIZE );
2863 sl->sl_mincsn.bv_val = (char *)(sl+1);
2864 sl->sl_mincsn.bv_len = 0;
2866 sl->sl_head = sl->sl_tail = NULL;
2867 ldap_pvt_thread_mutex_init( &sl->sl_mutex );
2874 si->si_nopres = c->value_int;
2877 si->si_usehint = c->value_int;
2883 /* ITS#3456 we cannot run this search on the main thread, must use a
2884 * child thread in order to insure we have a big enough stack.
2891 syncprov_findcsn( ptr, FIND_MAXCSN );
2895 /* Read any existing contextCSN from the underlying db.
2896 * Then search for any entries newer than that. If no value exists,
2897 * just generate it. Cache whatever result.
2905 slap_overinst *on = (slap_overinst *) be->bd_info;
2906 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2908 Connection conn = { 0 };
2909 OperationBuffer opbuf;
2914 void *thrctx = NULL;
2916 if ( !SLAP_LASTMOD( be )) {
2917 Debug( LDAP_DEBUG_ANY,
2918 "syncprov_db_open: invalid config, lastmod must be enabled\n", 0, 0, 0 );
2922 if ( slapMode & SLAP_TOOL_MODE ) {
2926 rc = overlay_register_control( be, LDAP_CONTROL_SYNC );
2931 thrctx = ldap_pvt_thread_pool_context();
2932 connection_fake_init2( &conn, &opbuf, thrctx, 0 );
2935 op->o_dn = be->be_rootdn;
2936 op->o_ndn = be->be_rootndn;
2938 if ( SLAP_SYNC_SUBENTRY( be )) {
2939 build_new_dn( &si->si_contextdn, be->be_nsuffix,
2940 (struct berval *)&slap_ldapsync_cn_bv, NULL );
2942 si->si_contextdn = be->be_nsuffix[0];
2944 rc = overlay_entry_get_ov( op, &si->si_contextdn, NULL,
2945 slap_schema.si_ad_contextCSN, 0, &e, on );
2948 ldap_pvt_thread_t tid;
2950 a = attr_find( e->e_attrs, slap_schema.si_ad_contextCSN );
2952 ber_bvarray_dup_x( &si->si_ctxcsn, a->a_vals, NULL );
2953 si->si_numcsns = a->a_numvals;
2954 si->si_sids = slap_parse_csn_sids( si->si_ctxcsn, a->a_numvals, NULL );
2956 overlay_entry_release_ov( op, e, 0, on );
2957 if ( si->si_ctxcsn && !SLAP_DBCLEAN( be )) {
2958 op->o_req_dn = be->be_suffix[0];
2959 op->o_req_ndn = be->be_nsuffix[0];
2960 op->ors_scope = LDAP_SCOPE_SUBTREE;
2961 ldap_pvt_thread_create( &tid, 0, syncprov_db_otask, op );
2962 ldap_pvt_thread_join( tid, NULL );
2966 /* Didn't find a contextCSN, should we generate one? */
2967 if ( !si->si_ctxcsn ) {
2968 char csnbuf[ LDAP_PVT_CSNSTR_BUFSIZE ];
2971 if ( SLAP_SYNC_SHADOW( op->o_bd )) {
2972 /* If we're also a consumer, then don't generate anything.
2973 * Wait for our provider to send it to us, or for a local
2974 * modify if we have multimaster.
2978 csn.bv_val = csnbuf;
2979 csn.bv_len = sizeof( csnbuf );
2980 slap_get_csn( op, &csn, 0 );
2981 value_add_one( &si->si_ctxcsn, &csn );
2983 si->si_sids = ch_malloc( sizeof(int) );
2984 si->si_sids[0] = slap_serverID;
2986 /* make sure we do a checkpoint on close */
2991 op->o_bd->bd_info = (BackendInfo *)on;
2995 /* Write the current contextCSN into the underlying db.
3003 slap_overinst *on = (slap_overinst *) be->bd_info;
3004 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3006 if ( slapMode & SLAP_TOOL_MODE ) {
3009 if ( si->si_numops ) {
3010 Connection conn = {0};
3011 OperationBuffer opbuf;
3013 SlapReply rs = {REP_RESULT};
3016 thrctx = ldap_pvt_thread_pool_context();
3017 connection_fake_init2( &conn, &opbuf, thrctx, 0 );
3020 op->o_dn = be->be_rootdn;
3021 op->o_ndn = be->be_rootndn;
3022 syncprov_checkpoint( op, &rs, on );
3034 slap_overinst *on = (slap_overinst *)be->bd_info;
3035 syncprov_info_t *si;
3037 if ( SLAP_ISGLOBALOVERLAY( be ) ) {
3038 Debug( LDAP_DEBUG_ANY,
3039 "syncprov must be instantiated within a database.\n",
3044 si = ch_calloc(1, sizeof(syncprov_info_t));
3045 on->on_bi.bi_private = si;
3046 ldap_pvt_thread_rdwr_init( &si->si_csn_rwlock );
3047 ldap_pvt_thread_mutex_init( &si->si_ops_mutex );
3048 ldap_pvt_thread_mutex_init( &si->si_mods_mutex );
3049 ldap_pvt_thread_mutex_init( &si->si_resp_mutex );
3051 csn_anlist[0].an_desc = slap_schema.si_ad_entryCSN;
3052 csn_anlist[0].an_name = slap_schema.si_ad_entryCSN->ad_cname;
3053 csn_anlist[1].an_desc = slap_schema.si_ad_entryUUID;
3054 csn_anlist[1].an_name = slap_schema.si_ad_entryUUID->ad_cname;
3056 uuid_anlist[0].an_desc = slap_schema.si_ad_entryUUID;
3057 uuid_anlist[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
3063 syncprov_db_destroy(
3068 slap_overinst *on = (slap_overinst *)be->bd_info;
3069 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3072 if ( si->si_logs ) {
3073 slog_entry *se = si->si_logs->sl_head;
3076 slog_entry *se_next = se->se_next;
3081 ch_free( si->si_logs );
3083 if ( si->si_ctxcsn )
3084 ber_bvarray_free( si->si_ctxcsn );
3086 ch_free( si->si_sids );
3087 ldap_pvt_thread_mutex_destroy( &si->si_resp_mutex );
3088 ldap_pvt_thread_mutex_destroy( &si->si_mods_mutex );
3089 ldap_pvt_thread_mutex_destroy( &si->si_ops_mutex );
3090 ldap_pvt_thread_rdwr_destroy( &si->si_csn_rwlock );
3097 static int syncprov_parseCtrl (
3103 BerElementBuffer berbuf;
3104 BerElement *ber = (BerElement *)&berbuf;
3107 struct berval cookie = BER_BVNULL;
3111 if ( op->o_sync != SLAP_CONTROL_NONE ) {
3112 rs->sr_text = "Sync control specified multiple times";
3113 return LDAP_PROTOCOL_ERROR;
3116 if ( op->o_pagedresults != SLAP_CONTROL_NONE ) {
3117 rs->sr_text = "Sync control specified with pagedResults control";
3118 return LDAP_PROTOCOL_ERROR;
3121 if ( BER_BVISNULL( &ctrl->ldctl_value ) ) {
3122 rs->sr_text = "Sync control value is absent";
3123 return LDAP_PROTOCOL_ERROR;
3126 if ( BER_BVISEMPTY( &ctrl->ldctl_value ) ) {
3127 rs->sr_text = "Sync control value is empty";
3128 return LDAP_PROTOCOL_ERROR;
3131 /* Parse the control value
3132 * syncRequestValue ::= SEQUENCE {
3137 * refreshAndPersist (3)
3139 * cookie syncCookie OPTIONAL
3143 ber_init2( ber, &ctrl->ldctl_value, 0 );
3145 if ( (tag = ber_scanf( ber, "{i" /*}*/, &mode )) == LBER_ERROR ) {
3146 rs->sr_text = "Sync control : mode decoding error";
3147 return LDAP_PROTOCOL_ERROR;
3151 case LDAP_SYNC_REFRESH_ONLY:
3152 mode = SLAP_SYNC_REFRESH;
3154 case LDAP_SYNC_REFRESH_AND_PERSIST:
3155 mode = SLAP_SYNC_REFRESH_AND_PERSIST;
3158 rs->sr_text = "Sync control : unknown update mode";
3159 return LDAP_PROTOCOL_ERROR;
3162 tag = ber_peek_tag( ber, &len );
3164 if ( tag == LDAP_TAG_SYNC_COOKIE ) {
3165 if (( ber_scanf( ber, /*{*/ "m", &cookie )) == LBER_ERROR ) {
3166 rs->sr_text = "Sync control : cookie decoding error";
3167 return LDAP_PROTOCOL_ERROR;
3169 tag = ber_peek_tag( ber, &len );
3171 if ( tag == LDAP_TAG_RELOAD_HINT ) {
3172 if (( ber_scanf( ber, /*{*/ "b", &rhint )) == LBER_ERROR ) {
3173 rs->sr_text = "Sync control : rhint decoding error";
3174 return LDAP_PROTOCOL_ERROR;
3177 if (( ber_scanf( ber, /*{*/ "}")) == LBER_ERROR ) {
3178 rs->sr_text = "Sync control : decoding error";
3179 return LDAP_PROTOCOL_ERROR;
3181 sr = op->o_tmpcalloc( 1, sizeof(struct sync_control), op->o_tmpmemctx );
3182 sr->sr_rhint = rhint;
3183 if (!BER_BVISNULL(&cookie)) {
3184 ber_dupbv_x( &sr->sr_state.octet_str, &cookie, op->o_tmpmemctx );
3185 /* If parse fails, pretend no cookie was sent */
3186 if ( slap_parse_sync_cookie( &sr->sr_state, op->o_tmpmemctx ) ||
3187 sr->sr_state.rid == -1 ) {
3188 if ( sr->sr_state.ctxcsn ) {
3189 ber_bvarray_free_x( sr->sr_state.ctxcsn, op->o_tmpmemctx );
3190 sr->sr_state.ctxcsn = NULL;
3192 sr->sr_state.numcsns = 0;
3196 op->o_controls[slap_cids.sc_LDAPsync] = sr;
3198 op->o_sync = ctrl->ldctl_iscritical
3199 ? SLAP_CONTROL_CRITICAL
3200 : SLAP_CONTROL_NONCRITICAL;
3202 op->o_sync_mode |= mode; /* o_sync_mode shares o_sync */
3204 return LDAP_SUCCESS;
3207 /* This overlay is set up for dynamic loading via moduleload. For static
3208 * configuration, you'll need to arrange for the slap_overinst to be
3209 * initialized and registered by some other function inside slapd.
3212 static slap_overinst syncprov;
3215 syncprov_initialize()
3219 rc = register_supported_control( LDAP_CONTROL_SYNC,
3220 SLAP_CTRL_SEARCH, NULL,
3221 syncprov_parseCtrl, &slap_cids.sc_LDAPsync );
3222 if ( rc != LDAP_SUCCESS ) {
3223 Debug( LDAP_DEBUG_ANY,
3224 "syncprov_init: Failed to register control %d\n", rc, 0, 0 );
3228 syncprov.on_bi.bi_type = "syncprov";
3229 syncprov.on_bi.bi_db_init = syncprov_db_init;
3230 syncprov.on_bi.bi_db_destroy = syncprov_db_destroy;
3231 syncprov.on_bi.bi_db_open = syncprov_db_open;
3232 syncprov.on_bi.bi_db_close = syncprov_db_close;
3234 syncprov.on_bi.bi_op_abandon = syncprov_op_abandon;
3235 syncprov.on_bi.bi_op_cancel = syncprov_op_abandon;
3237 syncprov.on_bi.bi_op_add = syncprov_op_mod;
3238 syncprov.on_bi.bi_op_compare = syncprov_op_compare;
3239 syncprov.on_bi.bi_op_delete = syncprov_op_mod;
3240 syncprov.on_bi.bi_op_modify = syncprov_op_mod;
3241 syncprov.on_bi.bi_op_modrdn = syncprov_op_mod;
3242 syncprov.on_bi.bi_op_search = syncprov_op_search;
3243 syncprov.on_bi.bi_extended = syncprov_op_extended;
3244 syncprov.on_bi.bi_operational = syncprov_operational;
3246 syncprov.on_bi.bi_cf_ocs = spocs;
3248 generic_filter.f_desc = slap_schema.si_ad_objectClass;
3250 rc = config_register_schema( spcfg, spocs );
3251 if ( rc ) return rc;
3253 return overlay_register( &syncprov );
3256 #if SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC
3258 init_module( int argc, char *argv[] )
3260 return syncprov_initialize();
3262 #endif /* SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC */
3264 #endif /* defined(SLAPD_OVER_SYNCPROV) */