2 /* syncprov.c - syncrepl provider */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2004-2009 The OpenLDAP Foundation.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted only as authorized by the OpenLDAP
12 * A copy of this license is available in the file LICENSE in the
13 * top-level directory of the distribution or, alternatively, at
14 * <http://www.OpenLDAP.org/license.html>.
17 * This work was initially developed by Howard Chu for inclusion in
23 #ifdef SLAPD_OVER_SYNCPROV
25 #include <ac/string.h>
35 /* A modify request on a particular entry */
36 typedef struct modinst {
37 struct modinst *mi_next;
41 typedef struct modtarget {
42 struct modinst *mt_mods;
43 struct modinst *mt_tail;
45 ldap_pvt_thread_mutex_t mt_mutex;
48 /* A queued result of a persistent search */
49 typedef struct syncres {
50 struct syncres *s_next;
59 /* Record of a persistent search */
60 typedef struct syncops {
61 struct syncops *s_next;
62 struct berval s_base; /* ndn of search base */
63 ID s_eid; /* entryID of search base */
64 Operation *s_op; /* search op */
67 struct berval s_filterstr;
68 int s_flags; /* search status */
69 #define PS_IS_REFRESHING 0x01
70 #define PS_IS_DETACHED 0x02
71 #define PS_WROTE_BASE 0x04
72 #define PS_FIND_BASE 0x08
73 #define PS_FIX_FILTER 0x10
74 #define PS_TASK_QUEUED 0x20
76 int s_inuse; /* reference count */
77 struct syncres *s_res;
78 struct syncres *s_restail;
79 ldap_pvt_thread_mutex_t s_mutex;
82 /* A received sync control */
83 typedef struct sync_control {
84 struct sync_cookie sr_state;
88 #if 0 /* moved back to slap.h */
89 #define o_sync o_ctrlflag[slap_cids.sc_LDAPsync]
91 /* o_sync_mode uses data bits of o_sync */
92 #define o_sync_mode o_ctrlflag[slap_cids.sc_LDAPsync]
94 #define SLAP_SYNC_NONE (LDAP_SYNC_NONE<<SLAP_CONTROL_SHIFT)
95 #define SLAP_SYNC_REFRESH (LDAP_SYNC_REFRESH_ONLY<<SLAP_CONTROL_SHIFT)
96 #define SLAP_SYNC_PERSIST (LDAP_SYNC_RESERVED<<SLAP_CONTROL_SHIFT)
97 #define SLAP_SYNC_REFRESH_AND_PERSIST (LDAP_SYNC_REFRESH_AND_PERSIST<<SLAP_CONTROL_SHIFT)
99 /* Record of which searches matched at premodify step */
100 typedef struct syncmatches {
101 struct syncmatches *sm_next;
105 /* Session log data */
106 typedef struct slog_entry {
107 struct slog_entry *se_next;
108 struct berval se_uuid;
109 struct berval se_csn;
114 typedef struct sessionlog {
115 struct berval sl_mincsn;
120 ldap_pvt_thread_mutex_t sl_mutex;
123 /* The main state for this overlay */
124 typedef struct syncprov_info_t {
126 BerVarray si_ctxcsn; /* ldapsync context */
129 int si_chkops; /* checkpointing info */
131 int si_numops; /* number of ops since last checkpoint */
132 int si_nopres; /* Skip present phase */
133 int si_usehint; /* use reload hint */
134 time_t si_chklast; /* time of last checkpoint */
135 Avlnode *si_mods; /* entries being modified */
137 ldap_pvt_thread_rdwr_t si_csn_rwlock;
138 ldap_pvt_thread_mutex_t si_ops_mutex;
139 ldap_pvt_thread_mutex_t si_mods_mutex;
140 ldap_pvt_thread_mutex_t si_resp_mutex;
143 typedef struct opcookie {
145 syncmatches *smatches;
147 struct berval sdn; /* DN of entry, for deletes */
149 struct berval suuid; /* UUID of entry */
150 struct berval sctxcsn;
151 short osid; /* sid of op csn */
152 short rsid; /* sid of relay */
153 short sreference; /* Is the entry a reference? */
156 typedef struct fbase_cookie {
157 struct berval *fdn; /* DN of a modified entry, for scope testing */
158 syncops *fss; /* persistent search we're testing against */
159 int fbase; /* if TRUE we found the search base and it's still valid */
160 int fscope; /* if TRUE then fdn is within the psearch scope */
163 static AttributeName csn_anlist[3];
164 static AttributeName uuid_anlist[2];
166 /* Build a LDAPsync intermediate state control */
172 int entry_sync_state,
176 struct berval *cookie )
181 BerElementBuffer berbuf;
182 BerElement *ber = (BerElement *)&berbuf;
184 struct berval entryuuid_bv = BER_BVNULL;
186 ber_init2( ber, 0, LBER_USE_DER );
187 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
189 ctrls[num_ctrls] = op->o_tmpalloc( sizeof ( LDAPControl ), op->o_tmpmemctx );
191 for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
192 AttributeDescription *desc = a->a_desc;
193 if ( desc == slap_schema.si_ad_entryUUID ) {
194 entryuuid_bv = a->a_nvals[0];
199 /* FIXME: what if entryuuid is NULL or empty ? */
201 if ( send_cookie && cookie ) {
202 ber_printf( ber, "{eOON}",
203 entry_sync_state, &entryuuid_bv, cookie );
205 ber_printf( ber, "{eON}",
206 entry_sync_state, &entryuuid_bv );
209 ctrls[num_ctrls]->ldctl_oid = LDAP_CONTROL_SYNC_STATE;
210 ctrls[num_ctrls]->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
211 ret = ber_flatten2( ber, &ctrls[num_ctrls]->ldctl_value, 1 );
216 Debug( LDAP_DEBUG_TRACE,
217 "slap_build_sync_ctrl: ber_flatten2 failed\n",
219 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
226 /* Build a LDAPsync final state control */
234 struct berval *cookie,
238 BerElementBuffer berbuf;
239 BerElement *ber = (BerElement *)&berbuf;
241 ber_init2( ber, NULL, LBER_USE_DER );
242 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
244 ctrls[num_ctrls] = op->o_tmpalloc( sizeof ( LDAPControl ), op->o_tmpmemctx );
246 ber_printf( ber, "{" );
247 if ( send_cookie && cookie ) {
248 ber_printf( ber, "O", cookie );
250 if ( refreshDeletes == LDAP_SYNC_REFRESH_DELETES ) {
251 ber_printf( ber, "b", refreshDeletes );
253 ber_printf( ber, "N}" );
255 ctrls[num_ctrls]->ldctl_oid = LDAP_CONTROL_SYNC_DONE;
256 ctrls[num_ctrls]->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
257 ret = ber_flatten2( ber, &ctrls[num_ctrls]->ldctl_value, 1 );
262 Debug( LDAP_DEBUG_TRACE,
263 "syncprov_done_ctrl: ber_flatten2 failed\n",
265 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
277 struct berval *cookie,
282 BerElementBuffer berbuf;
283 BerElement *ber = (BerElement *)&berbuf;
284 struct berval rspdata;
288 ber_init2( ber, NULL, LBER_USE_DER );
289 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
293 case LDAP_TAG_SYNC_NEW_COOKIE:
294 ber_printf( ber, "tO", type, cookie );
296 case LDAP_TAG_SYNC_REFRESH_DELETE:
297 case LDAP_TAG_SYNC_REFRESH_PRESENT:
298 ber_printf( ber, "t{", type );
300 ber_printf( ber, "O", cookie );
302 if ( refreshDone == 0 ) {
303 ber_printf( ber, "b", refreshDone );
305 ber_printf( ber, "N}" );
307 case LDAP_TAG_SYNC_ID_SET:
308 ber_printf( ber, "t{", type );
310 ber_printf( ber, "O", cookie );
312 if ( refreshDeletes == 1 ) {
313 ber_printf( ber, "b", refreshDeletes );
315 ber_printf( ber, "[W]", syncUUIDs );
316 ber_printf( ber, "N}" );
319 Debug( LDAP_DEBUG_TRACE,
320 "syncprov_sendinfo: invalid syncinfo type (%d)\n",
326 ret = ber_flatten2( ber, &rspdata, 0 );
329 Debug( LDAP_DEBUG_TRACE,
330 "syncprov_sendinfo: ber_flatten2 failed\n",
332 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
336 rs->sr_rspoid = LDAP_SYNC_INFO;
337 rs->sr_rspdata = &rspdata;
338 send_ldap_intermediate( op, rs );
339 rs->sr_rspdata = NULL;
345 /* Find a modtarget in an AVL tree */
347 sp_avl_cmp( const void *c1, const void *c2 )
349 const modtarget *m1, *m2;
353 rc = m1->mt_op->o_req_ndn.bv_len - m2->mt_op->o_req_ndn.bv_len;
356 return ber_bvcmp( &m1->mt_op->o_req_ndn, &m2->mt_op->o_req_ndn );
359 /* syncprov_findbase:
360 * finds the true DN of the base of a search (with alias dereferencing) and
361 * checks to make sure the base entry doesn't get replaced with a different
362 * entry (e.g., swapping trees via ModDN, or retargeting an alias). If a
363 * change is detected, any persistent search on this base must be terminated /
365 * On the first call, we just save the DN and entryID. On subsequent calls
366 * we compare the DN and entryID with the saved values.
369 findbase_cb( Operation *op, SlapReply *rs )
371 slap_callback *sc = op->o_callback;
373 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
374 fbase_cookie *fc = sc->sc_private;
376 /* If no entryID, we're looking for the first time.
377 * Just store whatever we got.
379 if ( fc->fss->s_eid == NOID ) {
381 fc->fss->s_eid = rs->sr_entry->e_id;
382 ber_dupbv( &fc->fss->s_base, &rs->sr_entry->e_nname );
384 } else if ( rs->sr_entry->e_id == fc->fss->s_eid &&
385 dn_match( &rs->sr_entry->e_nname, &fc->fss->s_base )) {
387 /* OK, the DN is the same and the entryID is the same. */
391 if ( rs->sr_err != LDAP_SUCCESS ) {
392 Debug( LDAP_DEBUG_ANY, "findbase failed! %d\n", rs->sr_err,0,0 );
397 static Filter generic_filter = { LDAP_FILTER_PRESENT, { 0 }, NULL };
398 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
401 syncprov_findbase( Operation *op, fbase_cookie *fc )
403 /* Use basic parameters from syncrepl search, but use
404 * current op's threadctx / tmpmemctx
406 ldap_pvt_thread_mutex_lock( &fc->fss->s_mutex );
407 if ( fc->fss->s_flags & PS_FIND_BASE ) {
408 slap_callback cb = {0};
410 SlapReply frs = { REP_RESULT };
413 fc->fss->s_flags ^= PS_FIND_BASE;
414 ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
416 fop = *fc->fss->s_op;
418 fop.o_bd = fop.o_bd->bd_self;
419 fop.o_hdr = op->o_hdr;
420 fop.o_time = op->o_time;
421 fop.o_tincr = op->o_tincr;
423 cb.sc_response = findbase_cb;
426 fop.o_sync_mode = 0; /* turn off sync mode */
427 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
428 fop.o_callback = &cb;
429 fop.o_tag = LDAP_REQ_SEARCH;
430 fop.ors_scope = LDAP_SCOPE_BASE;
431 fop.ors_limit = NULL;
433 fop.ors_tlimit = SLAP_NO_LIMIT;
434 fop.ors_attrs = slap_anlist_no_attrs;
435 fop.ors_attrsonly = 1;
436 fop.ors_filter = &generic_filter;
437 fop.ors_filterstr = generic_filterstr;
439 rc = fop.o_bd->be_search( &fop, &frs );
441 ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
445 /* After the first call, see if the fdn resides in the scope */
446 if ( fc->fbase == 1 ) {
447 switch ( fc->fss->s_op->ors_scope ) {
448 case LDAP_SCOPE_BASE:
449 fc->fscope = dn_match( fc->fdn, &fc->fss->s_base );
451 case LDAP_SCOPE_ONELEVEL: {
453 dnParent( fc->fdn, &pdn );
454 fc->fscope = dn_match( &pdn, &fc->fss->s_base );
456 case LDAP_SCOPE_SUBTREE:
457 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base );
459 case LDAP_SCOPE_SUBORDINATE:
460 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base ) &&
461 !dn_match( fc->fdn, &fc->fss->s_base );
469 /* If entryID has changed, then the base of this search has
470 * changed. Invalidate the psearch.
472 return LDAP_NO_SUCH_OBJECT;
476 * This function has three different purposes, but they all use a search
477 * that filters on entryCSN so they're combined here.
478 * 1: at startup time, after a contextCSN has been read from the database,
479 * we search for all entries with CSN >= contextCSN in case the contextCSN
480 * was not checkpointed at the previous shutdown.
482 * 2: when the current contextCSN is known and we have a sync cookie, we search
483 * for one entry with CSN = the cookie CSN. If not found, try <= cookie CSN.
484 * If an entry is found, the cookie CSN is valid, otherwise it is stale.
486 * 3: during a refresh phase, we search for all entries with CSN <= the cookie
487 * CSN, and generate Present records for them. We always collect this result
488 * in SyncID sets, even if there's only one match.
490 typedef enum find_csn_t {
497 findmax_cb( Operation *op, SlapReply *rs )
499 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
500 struct berval *maxcsn = op->o_callback->sc_private;
501 Attribute *a = attr_find( rs->sr_entry->e_attrs,
502 slap_schema.si_ad_entryCSN );
504 if ( a && ber_bvcmp( &a->a_vals[0], maxcsn ) > 0 &&
505 slap_parse_csn_sid( &a->a_vals[0] ) == slap_serverID ) {
506 maxcsn->bv_len = a->a_vals[0].bv_len;
507 strcpy( maxcsn->bv_val, a->a_vals[0].bv_val );
514 findcsn_cb( Operation *op, SlapReply *rs )
516 slap_callback *sc = op->o_callback;
518 /* We just want to know that at least one exists, so it's OK if
519 * we exceed the unchecked limit.
521 if ( rs->sr_err == LDAP_ADMINLIMIT_EXCEEDED ||
522 (rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS )) {
523 sc->sc_private = (void *)1;
528 /* Build a list of entryUUIDs for sending in a SyncID set */
532 typedef struct fpres_cookie {
539 findpres_cb( Operation *op, SlapReply *rs )
541 slap_callback *sc = op->o_callback;
542 fpres_cookie *pc = sc->sc_private;
544 int ret = SLAP_CB_CONTINUE;
546 switch ( rs->sr_type ) {
548 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
550 pc->uuids[pc->num].bv_val = pc->last;
551 AC_MEMCPY( pc->uuids[pc->num].bv_val, a->a_nvals[0].bv_val,
552 pc->uuids[pc->num].bv_len );
554 pc->last = pc->uuids[pc->num].bv_val;
555 pc->uuids[pc->num].bv_val = NULL;
558 if ( pc->num != SLAP_SYNCUUID_SET_SIZE )
564 ret = syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET, NULL,
566 pc->uuids[pc->num].bv_val = pc->last;
568 pc->last = pc->uuids[0].bv_val;
578 syncprov_findcsn( Operation *op, find_csn_t mode )
580 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
581 syncprov_info_t *si = on->on_bi.bi_private;
583 slap_callback cb = {0};
585 SlapReply frs = { REP_RESULT };
586 char buf[LDAP_LUTIL_CSNSTR_BUFSIZE + STRLENOF("(entryCSN<=)")];
587 char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
588 struct berval maxcsn;
590 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
591 fpres_cookie pcookie;
592 sync_control *srs = NULL;
593 struct slap_limits_set fc_limits;
594 int i, rc = LDAP_SUCCESS, findcsn_retry = 1;
597 if ( mode != FIND_MAXCSN ) {
598 srs = op->o_controls[slap_cids.sc_LDAPsync];
602 fop.o_sync_mode &= SLAP_CONTROL_MASK; /* turn off sync_mode */
603 /* We want pure entries, not referrals */
604 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
607 cf.f_av_desc = slap_schema.si_ad_entryCSN;
608 BER_BVZERO( &cf.f_av_value );
611 fop.o_callback = &cb;
612 fop.ors_limit = NULL;
613 fop.ors_tlimit = SLAP_NO_LIMIT;
614 fop.ors_filter = &cf;
615 fop.ors_filterstr.bv_val = buf;
620 cf.f_choice = LDAP_FILTER_GE;
621 /* If there are multiple CSNs, use the one with our serverID */
622 for ( i=0; i<si->si_numcsns; i++) {
623 if ( slap_serverID == si->si_sids[i] ) {
628 if ( i == si->si_numcsns ) {
629 /* No match: this is multimaster, and none of the content in the DB
630 * originated locally. Treat like no CSN.
632 return LDAP_NO_SUCH_OBJECT;
634 cf.f_av_value = si->si_ctxcsn[maxid];
635 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
636 "(entryCSN>=%s)", cf.f_av_value.bv_val );
637 if ( fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
640 fop.ors_attrsonly = 0;
641 fop.ors_attrs = csn_anlist;
642 fop.ors_slimit = SLAP_NO_LIMIT;
643 cb.sc_private = &maxcsn;
644 cb.sc_response = findmax_cb;
645 strcpy( cbuf, cf.f_av_value.bv_val );
646 maxcsn.bv_val = cbuf;
647 maxcsn.bv_len = cf.f_av_value.bv_len;
650 if ( BER_BVISEMPTY( &cf.f_av_value )) {
651 cf.f_av_value = srs->sr_state.ctxcsn[0];
652 /* If there are multiple CSNs, use the smallest */
653 for ( i=1; i<srs->sr_state.numcsns; i++ ) {
654 if ( ber_bvcmp( &cf.f_av_value, &srs->sr_state.ctxcsn[i] )
656 cf.f_av_value = srs->sr_state.ctxcsn[i];
660 /* Look for exact match the first time */
661 if ( findcsn_retry ) {
662 cf.f_choice = LDAP_FILTER_EQUALITY;
663 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
664 "(entryCSN=%s)", cf.f_av_value.bv_val );
665 /* On retry, look for <= */
667 cf.f_choice = LDAP_FILTER_LE;
668 fop.ors_limit = &fc_limits;
669 memset( &fc_limits, 0, sizeof( fc_limits ));
670 fc_limits.lms_s_unchecked = 1;
671 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
672 "(entryCSN<=%s)", cf.f_av_value.bv_val );
674 if ( fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
677 fop.ors_attrsonly = 1;
678 fop.ors_attrs = slap_anlist_no_attrs;
680 cb.sc_private = NULL;
681 cb.sc_response = findcsn_cb;
684 fop.ors_filter = op->ors_filter;
685 fop.ors_filterstr = op->ors_filterstr;
686 fop.ors_attrsonly = 0;
687 fop.ors_attrs = uuid_anlist;
688 fop.ors_slimit = SLAP_NO_LIMIT;
689 cb.sc_private = &pcookie;
690 cb.sc_response = findpres_cb;
693 /* preallocate storage for a full set */
694 pcookie.uuids = op->o_tmpalloc( (SLAP_SYNCUUID_SET_SIZE+1) *
695 sizeof(struct berval) + SLAP_SYNCUUID_SET_SIZE * UUID_LEN,
697 pcookie.last = (char *)(pcookie.uuids + SLAP_SYNCUUID_SET_SIZE+1);
698 pcookie.uuids[0].bv_val = pcookie.last;
699 pcookie.uuids[0].bv_len = UUID_LEN;
700 for (i=1; i<SLAP_SYNCUUID_SET_SIZE; i++) {
701 pcookie.uuids[i].bv_val = pcookie.uuids[i-1].bv_val + UUID_LEN;
702 pcookie.uuids[i].bv_len = UUID_LEN;
707 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
708 fop.o_bd->be_search( &fop, &frs );
709 fop.o_bd->bd_info = (BackendInfo *)on;
713 if ( ber_bvcmp( &si->si_ctxcsn[maxid], &maxcsn )) {
715 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
716 assert( !syn->ssyn_validate( syn, &maxcsn ));
718 ber_bvreplace( &si->si_ctxcsn[maxid], &maxcsn );
719 si->si_numops++; /* ensure a checkpoint */
723 /* If matching CSN was not found, invalidate the context. */
724 if ( !cb.sc_private ) {
725 /* If we didn't find an exact match, then try for <= */
726 if ( findcsn_retry ) {
730 rc = LDAP_NO_SUCH_OBJECT;
734 op->o_tmpfree( pcookie.uuids, op->o_tmpmemctx );
742 syncprov_free_syncop( syncops *so )
744 syncres *sr, *srnext;
745 GroupAssertion *ga, *gnext;
747 ldap_pvt_thread_mutex_lock( &so->s_mutex );
748 if ( --so->s_inuse > 0 ) {
749 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
752 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
753 if ( so->s_flags & PS_IS_DETACHED ) {
754 filter_free( so->s_op->ors_filter );
755 for ( ga = so->s_op->o_groups; ga; ga=gnext ) {
761 ch_free( so->s_base.bv_val );
762 for ( sr=so->s_res; sr; sr=srnext ) {
766 ldap_pvt_thread_mutex_destroy( &so->s_mutex );
770 /* Send a persistent search response */
772 syncprov_sendresp( Operation *op, opcookie *opc, syncops *so,
773 Entry **e, int mode )
775 slap_overinst *on = opc->son;
777 SlapReply rs = { REP_SEARCH };
778 LDAPControl *ctrls[2];
779 struct berval cookie = BER_BVNULL, csns[2];
781 Attribute a_uuid = {0};
783 if ( so->s_op->o_abandon )
784 return SLAPD_ABANDON;
787 if ( !BER_BVISNULL( &opc->sctxcsn )) {
788 csns[0] = opc->sctxcsn;
789 BER_BVZERO( &csns[1] );
790 slap_compose_sync_cookie( op, &cookie, csns, so->s_rid, slap_serverID ? slap_serverID : -1 );
794 if ( !BER_BVISNULL( &cookie )) {
795 if ( so->s_sid > 0 ) {
796 Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: to=%03x, cookie=%s\n",
797 so->s_sid, cookie.bv_val , 0 );
799 Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: cookie=%s\n",
800 cookie.bv_val, 0, 0 );
805 e_uuid.e_attrs = &a_uuid;
806 a_uuid.a_desc = slap_schema.si_ad_entryUUID;
807 a_uuid.a_nvals = &opc->suuid;
808 rs.sr_err = syncprov_state_ctrl( op, &rs, &e_uuid,
809 mode, ctrls, 0, 1, &cookie );
810 if ( !BER_BVISNULL( &cookie )) {
811 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
815 op->o_bd->bd_info = (BackendInfo *)on->on_info;
819 if ( rs.sr_entry->e_private )
820 rs.sr_flags = REP_ENTRY_MUSTRELEASE;
821 if ( opc->sreference && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
822 rs.sr_ref = get_entry_referrals( op, rs.sr_entry );
823 rs.sr_err = send_search_reference( op, &rs );
824 ber_bvarray_free( rs.sr_ref );
830 case LDAP_SYNC_MODIFY:
832 if ( rs.sr_entry->e_private )
833 rs.sr_flags = REP_ENTRY_MUSTRELEASE;
834 rs.sr_attrs = op->ors_attrs;
835 rs.sr_err = send_search_entry( op, &rs );
839 case LDAP_SYNC_DELETE:
840 e_uuid.e_attrs = NULL;
841 e_uuid.e_name = opc->sdn;
842 e_uuid.e_nname = opc->sndn;
843 rs.sr_entry = &e_uuid;
844 if ( opc->sreference && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
845 struct berval bv = BER_BVNULL;
847 rs.sr_err = send_search_reference( op, &rs );
849 rs.sr_err = send_search_entry( op, &rs );
855 /* In case someone else freed it already? */
857 op->o_tmpfree( rs.sr_ctrls[0], op->o_tmpmemctx );
865 syncprov_qstart( syncops *so );
867 /* Play back queued responses */
869 syncprov_qplay( Operation *op, syncops *so )
871 slap_overinst *on = LDAP_SLIST_FIRST(&so->s_op->o_extra)->oe_key;
880 ldap_pvt_thread_mutex_lock( &so->s_mutex );
883 so->s_res = sr->s_next;
885 so->s_restail = NULL;
886 /* Exit loop with mutex held */
887 if ( !sr || so->s_op->o_abandon )
889 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
891 if ( sr->s_mode == LDAP_SYNC_NEW_COOKIE ) {
892 SlapReply rs = { REP_INTERMEDIATE };
894 rc = syncprov_sendinfo( op, &rs, LDAP_TAG_SYNC_NEW_COOKIE,
895 &sr->s_csn, 0, NULL, 0 );
898 opc.sndn = sr->s_ndn;
899 opc.suuid = sr->s_uuid;
900 opc.sctxcsn = sr->s_csn;
901 opc.sreference = sr->s_isreference;
904 if ( sr->s_mode != LDAP_SYNC_DELETE ) {
905 rc = overlay_entry_get_ov( op, &opc.sndn, NULL, NULL, 0, &e, on );
907 Debug( LDAP_DEBUG_SYNC, "syncprov_qplay: failed to get %s, "
908 "error (%d), ignoring...\n", opc.sndn.bv_val, rc, 0 );
914 rc = syncprov_sendresp( op, &opc, so, &e, sr->s_mode );
917 overlay_entry_release_ov( op, e, 0, on );
923 /* Exit loop with mutex held */
924 ldap_pvt_thread_mutex_lock( &so->s_mutex );
928 /* We now only send one change at a time, to prevent one
929 * psearch from hogging all the CPU. Resubmit this task if
930 * there are more responses queued and no errors occurred.
933 if ( rc == 0 && so->s_res ) {
934 syncprov_qstart( so );
936 so->s_flags ^= PS_TASK_QUEUED;
939 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
943 /* task for playing back queued responses */
945 syncprov_qtask( void *ctx, void *arg )
948 OperationBuffer opbuf;
955 op->o_hdr = &opbuf.ob_hdr;
956 op->o_controls = opbuf.ob_controls;
957 memset( op->o_controls, 0, sizeof(opbuf.ob_controls) );
959 *op->o_hdr = *so->s_op->o_hdr;
961 op->o_tmpmemctx = slap_sl_mem_create(SLAP_SLAB_SIZE, SLAP_SLAB_STACK, ctx, 1);
962 op->o_tmpmfuncs = &slap_sl_mfuncs;
963 op->o_threadctx = ctx;
965 /* syncprov_qplay expects a fake db */
966 be = *so->s_op->o_bd;
967 be.be_flags |= SLAP_DBFLAG_OVERLAY;
969 LDAP_SLIST_FIRST(&op->o_extra) = NULL;
970 op->o_callback = NULL;
972 rc = syncprov_qplay( op, so );
974 /* decrement use count... */
975 syncprov_free_syncop( so );
980 /* Start the task to play back queued psearch responses */
982 syncprov_qstart( syncops *so )
984 so->s_flags |= PS_TASK_QUEUED;
986 ldap_pvt_thread_pool_submit( &connection_pool,
987 syncprov_qtask, so );
990 /* Queue a persistent search response */
992 syncprov_qresp( opcookie *opc, syncops *so, int mode )
996 struct berval cookie = opc->sctxcsn;
998 if ( mode == LDAP_SYNC_NEW_COOKIE ) {
999 syncprov_info_t *si = opc->son->on_bi.bi_private;
1001 slap_compose_sync_cookie( NULL, &cookie, si->si_ctxcsn,
1002 so->s_rid, slap_serverID ? slap_serverID : -1);
1005 srsize = sizeof(syncres) + opc->suuid.bv_len + 1 +
1006 opc->sdn.bv_len + 1 + opc->sndn.bv_len + 1;
1007 if ( cookie.bv_len )
1008 srsize += cookie.bv_len + 1;
1009 sr = ch_malloc( srsize );
1011 sr->s_dn.bv_val = (char *)(sr + 1);
1012 sr->s_dn.bv_len = opc->sdn.bv_len;
1014 sr->s_isreference = opc->sreference;
1015 sr->s_ndn.bv_val = lutil_strcopy( sr->s_dn.bv_val,
1016 opc->sdn.bv_val ) + 1;
1017 sr->s_ndn.bv_len = opc->sndn.bv_len;
1018 sr->s_uuid.bv_val = lutil_strcopy( sr->s_ndn.bv_val,
1019 opc->sndn.bv_val ) + 1;
1020 sr->s_uuid.bv_len = opc->suuid.bv_len;
1021 AC_MEMCPY( sr->s_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1022 if ( cookie.bv_len ) {
1023 sr->s_csn.bv_val = sr->s_uuid.bv_val + sr->s_uuid.bv_len + 1;
1024 strcpy( sr->s_csn.bv_val, cookie.bv_val );
1026 sr->s_csn.bv_val = NULL;
1028 sr->s_csn.bv_len = cookie.bv_len;
1030 if ( mode == LDAP_SYNC_NEW_COOKIE && cookie.bv_val ) {
1031 ch_free( cookie.bv_val );
1034 ldap_pvt_thread_mutex_lock( &so->s_mutex );
1038 so->s_restail->s_next = sr;
1042 /* If the base of the psearch was modified, check it next time round */
1043 if ( so->s_flags & PS_WROTE_BASE ) {
1044 so->s_flags ^= PS_WROTE_BASE;
1045 so->s_flags |= PS_FIND_BASE;
1047 if (( so->s_flags & (PS_IS_DETACHED|PS_TASK_QUEUED)) == PS_IS_DETACHED ) {
1048 syncprov_qstart( so );
1050 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
1051 return LDAP_SUCCESS;
1055 syncprov_drop_psearch( syncops *so, int lock )
1057 if ( so->s_flags & PS_IS_DETACHED ) {
1059 ldap_pvt_thread_mutex_lock( &so->s_op->o_conn->c_mutex );
1060 so->s_op->o_conn->c_n_ops_executing--;
1061 so->s_op->o_conn->c_n_ops_completed++;
1062 LDAP_STAILQ_REMOVE( &so->s_op->o_conn->c_ops, so->s_op, Operation,
1065 ldap_pvt_thread_mutex_unlock( &so->s_op->o_conn->c_mutex );
1067 syncprov_free_syncop( so );
1073 syncprov_ab_cleanup( Operation *op, SlapReply *rs )
1075 slap_callback *sc = op->o_callback;
1076 op->o_callback = sc->sc_next;
1077 syncprov_drop_psearch( op->o_callback->sc_private, 0 );
1078 op->o_tmpfree( sc, op->o_tmpmemctx );
1083 syncprov_op_abandon( Operation *op, SlapReply *rs )
1085 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1086 syncprov_info_t *si = on->on_bi.bi_private;
1087 syncops *so, *soprev;
1089 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1090 for ( so=si->si_ops, soprev = (syncops *)&si->si_ops; so;
1091 soprev=so, so=so->s_next ) {
1092 if ( so->s_op->o_connid == op->o_connid &&
1093 so->s_op->o_msgid == op->orn_msgid ) {
1094 so->s_op->o_abandon = 1;
1095 soprev->s_next = so->s_next;
1099 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1101 /* Is this really a Cancel exop? */
1102 if ( op->o_tag != LDAP_REQ_ABANDON ) {
1103 so->s_op->o_cancel = SLAP_CANCEL_ACK;
1104 rs->sr_err = LDAP_CANCELLED;
1105 send_ldap_result( so->s_op, rs );
1106 if ( so->s_flags & PS_IS_DETACHED ) {
1108 cb = op->o_tmpcalloc( 1, sizeof(slap_callback), op->o_tmpmemctx );
1109 cb->sc_cleanup = syncprov_ab_cleanup;
1110 cb->sc_next = op->o_callback;
1111 cb->sc_private = so;
1112 return SLAP_CB_CONTINUE;
1115 syncprov_drop_psearch( so, 0 );
1117 return SLAP_CB_CONTINUE;
1120 /* Find which persistent searches are affected by this operation */
1122 syncprov_matchops( Operation *op, opcookie *opc, int saveit )
1124 slap_overinst *on = opc->son;
1125 syncprov_info_t *si = on->on_bi.bi_private;
1128 syncops *ss, *sprev, *snext;
1132 struct berval newdn;
1134 BackendDB *b0 = op->o_bd, db;
1136 fc.fdn = &op->o_req_ndn;
1137 /* compute new DN */
1138 if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1140 if ( op->orr_nnewSup ) pdn = *op->orr_nnewSup;
1141 else dnParent( fc.fdn, &pdn );
1142 build_new_dn( &newdn, &pdn, &op->orr_nnewrdn, op->o_tmpmemctx );
1146 if ( op->o_tag != LDAP_REQ_ADD ) {
1147 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1151 rc = overlay_entry_get_ov( op, fc.fdn, NULL, NULL, 0, &e, on );
1152 /* If we're sending responses now, make a copy and unlock the DB */
1153 if ( e && !saveit ) {
1154 Entry *e2 = entry_dup( e );
1155 overlay_entry_release_ov( op, e, 0, on );
1166 if ( saveit || op->o_tag == LDAP_REQ_ADD ) {
1167 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1168 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1169 opc->sreference = is_entry_referral( e );
1170 a = attr_find( e->e_attrs, slap_schema.si_ad_entryUUID );
1172 ber_dupbv_x( &opc->suuid, &a->a_nvals[0], op->o_tmpmemctx );
1173 } else if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1174 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1175 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1176 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1177 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1180 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1181 for (ss = si->si_ops, sprev = (syncops *)&si->si_ops; ss;
1182 sprev = ss, ss=snext)
1190 if ( ss->s_op->o_abandon )
1193 /* First time thru, check for possible skips */
1194 if ( saveit || op->o_tag == LDAP_REQ_ADD ) {
1196 /* Don't send ops back to the originator */
1197 if ( opc->osid > 0 && opc->osid == ss->s_sid ) {
1198 Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping original sid %03x\n",
1203 /* Don't send ops back to the messenger */
1204 if ( opc->rsid > 0 && opc->rsid == ss->s_sid ) {
1205 Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping relayed sid %03x\n",
1216 /* If the base of the search is missing, signal a refresh */
1217 rc = syncprov_findbase( op, &fc );
1218 if ( rc != LDAP_SUCCESS ) {
1219 SlapReply rs = {REP_RESULT};
1220 send_ldap_error( ss->s_op, &rs, LDAP_SYNC_REFRESH_REQUIRED,
1221 "search base has changed" );
1222 sprev->s_next = snext;
1223 syncprov_drop_psearch( ss, 1 );
1229 /* If we're sending results now, look for this op in old matches */
1233 /* Did we modify the search base? */
1234 if ( dn_match( &op->o_req_ndn, &ss->s_base )) {
1235 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1236 ss->s_flags |= PS_WROTE_BASE;
1237 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1240 for ( sm=opc->smatches, old=(syncmatches *)&opc->smatches; sm;
1241 old=sm, sm=sm->sm_next ) {
1242 if ( sm->sm_op == ss ) {
1244 old->sm_next = sm->sm_next;
1245 op->o_tmpfree( sm, op->o_tmpmemctx );
1254 oh.oh_conn = ss->s_op->o_conn;
1255 oh.oh_connid = ss->s_op->o_connid;
1256 op2.o_bd = op->o_bd->bd_self;
1258 op2.o_extra = op->o_extra;
1259 op2.o_callback = NULL;
1260 rc = test_filter( &op2, e, ss->s_op->ors_filter );
1263 Debug( LDAP_DEBUG_TRACE, "syncprov_matchops: sid %03x fscope %d rc %d\n",
1264 ss->s_sid, fc.fscope, rc );
1266 /* check if current o_req_dn is in scope and matches filter */
1267 if ( fc.fscope && rc == LDAP_COMPARE_TRUE ) {
1269 sm = op->o_tmpalloc( sizeof(syncmatches), op->o_tmpmemctx );
1270 sm->sm_next = opc->smatches;
1272 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1274 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1277 /* if found send UPDATE else send ADD */
1278 syncprov_qresp( opc, ss,
1279 found ? LDAP_SYNC_MODIFY : LDAP_SYNC_ADD );
1281 } else if ( !saveit && found ) {
1283 syncprov_qresp( opc, ss, LDAP_SYNC_DELETE );
1284 } else if ( !saveit ) {
1285 syncprov_qresp( opc, ss, LDAP_SYNC_NEW_COOKIE );
1287 if ( !saveit && found ) {
1288 /* Decrement s_inuse, was incremented when called
1289 * with saveit == TRUE
1291 syncprov_free_syncop( ss );
1294 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1296 if ( op->o_tag != LDAP_REQ_ADD && e ) {
1297 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1300 overlay_entry_release_ov( op, e, 0, on );
1304 op->o_tmpfree( fc.fdn->bv_val, op->o_tmpmemctx );
1310 syncprov_op_cleanup( Operation *op, SlapReply *rs )
1312 slap_callback *cb = op->o_callback;
1313 opcookie *opc = cb->sc_private;
1314 slap_overinst *on = opc->son;
1315 syncprov_info_t *si = on->on_bi.bi_private;
1316 syncmatches *sm, *snext;
1317 modtarget *mt, mtdummy;
1319 for (sm = opc->smatches; sm; sm=snext) {
1320 snext = sm->sm_next;
1321 syncprov_free_syncop( sm->sm_op );
1322 op->o_tmpfree( sm, op->o_tmpmemctx );
1325 /* Remove op from lock table */
1328 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1329 mt->mt_mods = mt->mt_mods->mi_next;
1330 /* If there are more, promote the next one */
1331 if ( mt->mt_mods ) {
1332 mt->mt_op = mt->mt_mods->mi_op;
1333 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1335 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1336 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1337 avl_delete( &si->si_mods, mt, sp_avl_cmp );
1338 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1339 ldap_pvt_thread_mutex_destroy( &mt->mt_mutex );
1343 if ( !BER_BVISNULL( &opc->suuid ))
1344 op->o_tmpfree( opc->suuid.bv_val, op->o_tmpmemctx );
1345 if ( !BER_BVISNULL( &opc->sndn ))
1346 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1347 if ( !BER_BVISNULL( &opc->sdn ))
1348 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1349 op->o_callback = cb->sc_next;
1350 op->o_tmpfree(cb, op->o_tmpmemctx);
1356 syncprov_checkpoint( Operation *op, SlapReply *rs, slap_overinst *on )
1358 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
1361 SlapReply rsm = { 0 };
1362 slap_callback cb = {0};
1365 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1368 for ( i=0; i<si->si_numcsns; i++ ) {
1369 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1372 mod.sml_numvals = si->si_numcsns;
1373 mod.sml_values = si->si_ctxcsn;
1374 mod.sml_nvalues = NULL;
1375 mod.sml_desc = slap_schema.si_ad_contextCSN;
1376 mod.sml_op = LDAP_MOD_REPLACE;
1377 mod.sml_flags = SLAP_MOD_INTERNAL;
1378 mod.sml_next = NULL;
1380 cb.sc_response = slap_null_cb;
1382 opm.o_tag = LDAP_REQ_MODIFY;
1383 opm.o_callback = &cb;
1384 opm.orm_modlist = &mod;
1385 opm.orm_no_opattrs = 1;
1386 if ( SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1387 be = *on->on_info->oi_origdb;
1390 opm.o_req_dn = opm.o_bd->be_suffix[0];
1391 opm.o_req_ndn = opm.o_bd->be_nsuffix[0];
1392 opm.o_bd->bd_info = on->on_info->oi_orig;
1393 opm.o_managedsait = SLAP_CONTROL_NONCRITICAL;
1394 opm.o_no_schema_check = 1;
1395 opm.o_bd->be_modify( &opm, &rsm );
1396 if ( mod.sml_next != NULL ) {
1397 slap_mods_free( mod.sml_next, 1 );
1400 for ( i=0; i<si->si_numcsns; i++ ) {
1401 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1407 syncprov_add_slog( Operation *op )
1409 opcookie *opc = op->o_callback->sc_private;
1410 slap_overinst *on = opc->son;
1411 syncprov_info_t *si = on->on_bi.bi_private;
1417 /* Allocate a record. UUIDs are not NUL-terminated. */
1418 se = ch_malloc( sizeof( slog_entry ) + opc->suuid.bv_len +
1419 op->o_csn.bv_len + 1 );
1421 se->se_tag = op->o_tag;
1423 se->se_uuid.bv_val = (char *)(&se[1]);
1424 AC_MEMCPY( se->se_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1425 se->se_uuid.bv_len = opc->suuid.bv_len;
1427 se->se_csn.bv_val = se->se_uuid.bv_val + opc->suuid.bv_len;
1428 AC_MEMCPY( se->se_csn.bv_val, op->o_csn.bv_val, op->o_csn.bv_len );
1429 se->se_csn.bv_val[op->o_csn.bv_len] = '\0';
1430 se->se_csn.bv_len = op->o_csn.bv_len;
1431 se->se_sid = slap_parse_csn_sid( &se->se_csn );
1433 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1434 if ( sl->sl_head ) {
1435 sl->sl_tail->se_next = se;
1441 while ( sl->sl_num > sl->sl_size ) {
1443 sl->sl_head = se->se_next;
1444 strcpy( sl->sl_mincsn.bv_val, se->se_csn.bv_val );
1445 sl->sl_mincsn.bv_len = se->se_csn.bv_len;
1449 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1453 /* Just set a flag if we found the matching entry */
1455 playlog_cb( Operation *op, SlapReply *rs )
1457 if ( rs->sr_type == REP_SEARCH ) {
1458 op->o_callback->sc_private = (void *)1;
1463 /* enter with sl->sl_mutex locked, release before returning */
1465 syncprov_playlog( Operation *op, SlapReply *rs, sessionlog *sl,
1466 sync_control *srs, BerVarray ctxcsn, int numcsns, int *sids )
1468 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1470 int i, j, ndel, num, nmods, mmods;
1471 char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
1473 struct berval delcsn[2];
1475 if ( !sl->sl_num ) {
1476 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1484 uuids = op->o_tmpalloc( (num+1) * sizeof( struct berval ) +
1485 num * UUID_LEN, op->o_tmpmemctx );
1486 uuids[0].bv_val = (char *)(uuids + num + 1);
1488 delcsn[0].bv_len = 0;
1489 delcsn[0].bv_val = cbuf;
1490 BER_BVZERO(&delcsn[1]);
1492 /* Make a copy of the relevant UUIDs. Put the Deletes up front
1493 * and everything else at the end. Do this first so we can
1494 * unlock the list mutex.
1496 Debug( LDAP_DEBUG_SYNC, "srs csn %s\n",
1497 srs->sr_state.ctxcsn[0].bv_val, 0, 0 );
1498 for ( se=sl->sl_head; se; se=se->se_next ) {
1500 Debug( LDAP_DEBUG_SYNC, "log csn %s\n", se->se_csn.bv_val, 0, 0 );
1502 for ( k=0; k<srs->sr_state.numcsns; k++ ) {
1503 if ( se->se_sid == srs->sr_state.sids[k] ) {
1504 ndel = ber_bvcmp( &se->se_csn, &srs->sr_state.ctxcsn[k] );
1509 Debug( LDAP_DEBUG_SYNC, "cmp %d, too old\n", ndel, 0, 0 );
1513 for ( k=0; k<numcsns; k++ ) {
1514 if ( se->se_sid == sids[k] ) {
1515 ndel = ber_bvcmp( &se->se_csn, &ctxcsn[k] );
1520 Debug( LDAP_DEBUG_SYNC, "cmp %d, too new\n", ndel, 0, 0 );
1523 if ( se->se_tag == LDAP_REQ_DELETE ) {
1526 AC_MEMCPY( cbuf, se->se_csn.bv_val, se->se_csn.bv_len );
1527 delcsn[0].bv_len = se->se_csn.bv_len;
1528 delcsn[0].bv_val[delcsn[0].bv_len] = '\0';
1533 uuids[j].bv_val = uuids[0].bv_val + (j * UUID_LEN);
1534 AC_MEMCPY(uuids[j].bv_val, se->se_uuid.bv_val, UUID_LEN);
1535 uuids[j].bv_len = UUID_LEN;
1537 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1541 /* Zero out unused slots */
1542 for ( i=ndel; i < num - nmods; i++ )
1543 uuids[i].bv_len = 0;
1545 /* Mods must be validated to see if they belong in this delete set.
1549 /* Strip any duplicates */
1550 for ( i=0; i<nmods; i++ ) {
1551 for ( j=0; j<ndel; j++ ) {
1552 if ( bvmatch( &uuids[j], &uuids[num - 1 - i] )) {
1553 uuids[num - 1 - i].bv_len = 0;
1558 if ( uuids[num - 1 - i].bv_len == 0 ) continue;
1559 for ( j=0; j<i; j++ ) {
1560 if ( bvmatch( &uuids[num - 1 - j], &uuids[num - 1 - i] )) {
1561 uuids[num - 1 - i].bv_len = 0;
1570 SlapReply frs = { REP_RESULT };
1573 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
1574 slap_callback cb = {0};
1578 fop.o_sync_mode = 0;
1579 fop.o_callback = &cb;
1580 fop.ors_limit = NULL;
1581 fop.ors_tlimit = SLAP_NO_LIMIT;
1582 fop.ors_attrs = slap_anlist_all_attributes;
1583 fop.ors_attrsonly = 0;
1584 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
1586 af.f_choice = LDAP_FILTER_AND;
1589 mf.f_choice = LDAP_FILTER_EQUALITY;
1591 mf.f_av_desc = slap_schema.si_ad_entryUUID;
1592 mf.f_next = fop.ors_filter;
1594 fop.ors_filter = ⁡
1596 cb.sc_response = playlog_cb;
1597 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
1599 for ( i=ndel; i<num; i++ ) {
1600 if ( uuids[i].bv_len == 0 ) continue;
1602 mf.f_av_value = uuids[i];
1603 cb.sc_private = NULL;
1605 frs.sr_nentries = 0;
1606 rc = fop.o_bd->be_search( &fop, &frs );
1608 /* If entry was not found, add to delete list */
1609 if ( !cb.sc_private ) {
1610 uuids[ndel++] = uuids[i];
1613 fop.o_bd->bd_info = (BackendInfo *)on;
1616 struct berval cookie;
1618 if ( delcsn[0].bv_len ) {
1619 slap_compose_sync_cookie( op, &cookie, delcsn, srs->sr_state.rid,
1620 slap_serverID ? slap_serverID : -1 );
1622 Debug( LDAP_DEBUG_SYNC, "syncprov_playlog: cookie=%s\n", cookie.bv_val, 0, 0 );
1625 uuids[ndel].bv_val = NULL;
1626 syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET,
1627 delcsn[0].bv_len ? &cookie : NULL, 0, uuids, 1 );
1628 if ( delcsn[0].bv_len ) {
1629 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
1632 op->o_tmpfree( uuids, op->o_tmpmemctx );
1636 syncprov_op_response( Operation *op, SlapReply *rs )
1638 opcookie *opc = op->o_callback->sc_private;
1639 slap_overinst *on = opc->son;
1640 syncprov_info_t *si = on->on_bi.bi_private;
1643 if ( rs->sr_err == LDAP_SUCCESS )
1645 struct berval maxcsn;
1646 char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
1647 int do_check = 0, have_psearches, foundit, csn_changed = 0;
1649 ldap_pvt_thread_mutex_lock( &si->si_resp_mutex );
1651 /* Update our context CSN */
1653 maxcsn.bv_val = cbuf;
1654 maxcsn.bv_len = sizeof(cbuf);
1655 ldap_pvt_thread_rdwr_wlock( &si->si_csn_rwlock );
1657 if ( op->o_dont_replicate && op->o_tag == LDAP_REQ_MODIFY &&
1658 op->orm_modlist->sml_op == LDAP_MOD_REPLACE &&
1659 op->orm_modlist->sml_desc == slap_schema.si_ad_contextCSN ) {
1660 /* Catch contextCSN updates from syncrepl. We have to look at
1661 * all the attribute values, as there may be more than one csn
1662 * that changed, and only one can be passed in the csn queue.
1664 Modifications *mod = op->orm_modlist;
1667 for ( i=0; i<mod->sml_numvals; i++ ) {
1668 sid = slap_parse_csn_sid( &mod->sml_values[i] );
1670 for ( j=0; j<si->si_numcsns; j++ ) {
1671 if ( sid == si->si_sids[j] ) {
1672 if ( ber_bvcmp( &mod->sml_values[i], &si->si_ctxcsn[j] ) > 0 ) {
1673 ber_bvreplace( &si->si_ctxcsn[j], &mod->sml_values[i] );
1680 if ( j == si->si_numcsns ) {
1681 value_add_one( &si->si_ctxcsn, &mod->sml_values[i] );
1683 si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
1685 si->si_sids[j] = sid;
1689 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1691 if ( csn_changed ) {
1692 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1693 have_psearches = ( si->si_ops != NULL );
1694 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1696 if ( have_psearches ) {
1697 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1698 if ( sm->sm_op->s_op->o_abandon )
1700 syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_NEW_COOKIE );
1707 slap_get_commit_csn( op, &maxcsn, &foundit );
1708 if ( BER_BVISEMPTY( &maxcsn ) && SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1709 /* syncrepl queues the CSN values in the db where
1710 * it is configured , not where the changes are made.
1711 * So look for a value in the glue db if we didn't
1712 * find any in this db.
1714 BackendDB *be = op->o_bd;
1715 op->o_bd = select_backend( &be->be_nsuffix[0], 1);
1716 maxcsn.bv_val = cbuf;
1717 maxcsn.bv_len = sizeof(cbuf);
1718 slap_get_commit_csn( op, &maxcsn, &foundit );
1721 if ( !BER_BVISEMPTY( &maxcsn ) ) {
1724 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1725 assert( !syn->ssyn_validate( syn, &maxcsn ));
1727 sid = slap_parse_csn_sid( &maxcsn );
1728 for ( i=0; i<si->si_numcsns; i++ ) {
1729 if ( sid == si->si_sids[i] ) {
1730 if ( ber_bvcmp( &maxcsn, &si->si_ctxcsn[i] ) > 0 ) {
1731 ber_bvreplace( &si->si_ctxcsn[i], &maxcsn );
1737 /* It's a new SID for us */
1738 if ( i == si->si_numcsns ) {
1739 value_add_one( &si->si_ctxcsn, &maxcsn );
1742 si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
1744 si->si_sids[i] = sid;
1747 } else if ( !foundit ) {
1748 /* internal ops that aren't meant to be replicated */
1749 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1750 return SLAP_CB_CONTINUE;
1754 /* Don't do any processing for consumer contextCSN updates */
1755 if ( op->o_dont_replicate ) {
1756 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1761 if ( si->si_chkops || si->si_chktime ) {
1762 /* Never checkpoint adding the context entry,
1765 if ( op->o_tag != LDAP_REQ_ADD ||
1766 !dn_match( &op->o_req_ndn, &op->o_bd->be_nsuffix[0] )) {
1767 if ( si->si_chkops && si->si_numops >= si->si_chkops ) {
1771 if ( si->si_chktime &&
1772 (op->o_time - si->si_chklast >= si->si_chktime )) {
1773 if ( si->si_chklast ) {
1775 si->si_chklast = op->o_time;
1782 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1785 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1786 syncprov_checkpoint( op, rs, on );
1787 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1790 /* only update consumer ctx if this is a newer csn */
1791 if ( csn_changed ) {
1792 opc->sctxcsn = maxcsn;
1795 /* Handle any persistent searches */
1796 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1797 have_psearches = ( si->si_ops != NULL );
1798 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1799 if ( have_psearches ) {
1802 case LDAP_REQ_MODIFY:
1803 case LDAP_REQ_MODRDN:
1804 case LDAP_REQ_EXTENDED:
1805 syncprov_matchops( op, opc, 0 );
1807 case LDAP_REQ_DELETE:
1808 /* for each match in opc->smatches:
1811 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1812 if ( sm->sm_op->s_op->o_abandon )
1814 syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_DELETE );
1820 /* Add any log records */
1821 if ( si->si_logs && op->o_tag != LDAP_REQ_ADD ) {
1822 syncprov_add_slog( op );
1824 leave: ldap_pvt_thread_mutex_unlock( &si->si_resp_mutex );
1826 return SLAP_CB_CONTINUE;
1829 /* We don't use a subentry to store the context CSN any more.
1830 * We expose the current context CSN as an operational attribute
1831 * of the suffix entry.
1834 syncprov_op_compare( Operation *op, SlapReply *rs )
1836 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1837 syncprov_info_t *si = on->on_bi.bi_private;
1838 int rc = SLAP_CB_CONTINUE;
1840 if ( dn_match( &op->o_req_ndn, op->o_bd->be_nsuffix ) &&
1841 op->oq_compare.rs_ava->aa_desc == slap_schema.si_ad_contextCSN )
1846 e.e_name = op->o_bd->be_suffix[0];
1847 e.e_nname = op->o_bd->be_nsuffix[0];
1850 a.a_desc = slap_schema.si_ad_contextCSN;
1852 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1854 a.a_vals = si->si_ctxcsn;
1855 a.a_nvals = a.a_vals;
1856 a.a_numvals = si->si_numcsns;
1858 rs->sr_err = access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc,
1859 &op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL );
1860 if ( ! rs->sr_err ) {
1861 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1862 goto return_results;
1865 if ( get_assert( op ) &&
1866 ( test_filter( op, &e, get_assertion( op ) ) != LDAP_COMPARE_TRUE ) )
1868 rs->sr_err = LDAP_ASSERTION_FAILED;
1869 goto return_results;
1873 rs->sr_err = LDAP_COMPARE_FALSE;
1875 if ( attr_valfind( &a,
1876 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
1877 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
1878 &op->oq_compare.rs_ava->aa_value, NULL, op->o_tmpmemctx ) == 0 )
1880 rs->sr_err = LDAP_COMPARE_TRUE;
1885 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1887 send_ldap_result( op, rs );
1889 if( rs->sr_err == LDAP_COMPARE_FALSE || rs->sr_err == LDAP_COMPARE_TRUE ) {
1890 rs->sr_err = LDAP_SUCCESS;
1899 syncprov_op_mod( Operation *op, SlapReply *rs )
1901 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1902 syncprov_info_t *si = on->on_bi.bi_private;
1905 int have_psearches, cbsize;
1907 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1908 have_psearches = ( si->si_ops != NULL );
1909 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1911 cbsize = sizeof(slap_callback) + sizeof(opcookie) +
1912 (have_psearches ? sizeof(modinst) : 0 );
1914 cb = op->o_tmpcalloc(1, cbsize, op->o_tmpmemctx);
1915 opc = (opcookie *)(cb+1);
1917 cb->sc_response = syncprov_op_response;
1918 cb->sc_cleanup = syncprov_op_cleanup;
1919 cb->sc_private = opc;
1920 cb->sc_next = op->o_callback;
1921 op->o_callback = cb;
1925 if ( op->o_csn.bv_val ) {
1926 opc->osid = slap_parse_csn_sid( &op->o_csn );
1928 if ( op->o_controls ) {
1929 struct sync_cookie *scook =
1930 op->o_controls[slap_cids.sc_LDAPsync];
1932 opc->rsid = scook->sid;
1935 /* If there are active persistent searches, lock this operation.
1936 * See seqmod.c for the locking logic on its own.
1938 if ( have_psearches ) {
1939 modtarget *mt, mtdummy;
1942 mi = (modinst *)(opc+1);
1945 /* See if we're already modifying this entry... */
1947 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1948 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
1950 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1951 if ( mt->mt_mods == NULL ) {
1952 /* Cannot reuse this mt, as another thread is about
1953 * to release it in syncprov_op_cleanup.
1955 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1960 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1961 mt->mt_tail->mi_next = mi;
1963 /* wait for this op to get to head of list */
1964 while ( mt->mt_mods != mi ) {
1965 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1966 /* FIXME: if dynamic config can delete overlays or
1967 * databases we'll have to check for cleanup here.
1968 * Currently it's not an issue because there are
1969 * no dynamic config deletes...
1971 if ( slapd_shutdown )
1972 return SLAPD_ABANDON;
1974 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
1975 ldap_pvt_thread_yield();
1976 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1978 /* clean up if the caller is giving up */
1979 if ( op->o_abandon ) {
1981 for ( m2 = mt->mt_mods; m2->mi_next != mi;
1983 m2->mi_next = mi->mi_next;
1984 if ( mt->mt_tail == mi ) mt->mt_tail = m2;
1985 op->o_tmpfree( cb, op->o_tmpmemctx );
1986 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1987 return SLAPD_ABANDON;
1990 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1992 /* Record that we're modifying this entry now */
1993 mt = ch_malloc( sizeof(modtarget) );
1996 mt->mt_op = mi->mi_op;
1997 ldap_pvt_thread_mutex_init( &mt->mt_mutex );
1998 avl_insert( &si->si_mods, mt, sp_avl_cmp, avl_dup_error );
1999 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
2004 if (( have_psearches || si->si_logs ) && op->o_tag != LDAP_REQ_ADD )
2005 syncprov_matchops( op, opc, 1 );
2007 return SLAP_CB_CONTINUE;
2011 syncprov_op_extended( Operation *op, SlapReply *rs )
2013 if ( exop_is_write( op ))
2014 return syncprov_op_mod( op, rs );
2016 return SLAP_CB_CONTINUE;
2019 typedef struct searchstate {
2020 slap_overinst *ss_on;
2022 BerVarray ss_ctxcsn;
2025 #define SS_PRESENT 0x01
2026 #define SS_CHANGED 0x02
2031 syncprov_search_cleanup( Operation *op, SlapReply *rs )
2033 if ( rs->sr_ctrls ) {
2034 op->o_tmpfree( rs->sr_ctrls[0], op->o_tmpmemctx );
2035 op->o_tmpfree( rs->sr_ctrls, op->o_tmpmemctx );
2036 rs->sr_ctrls = NULL;
2041 typedef struct SyncOperationBuffer {
2045 AttributeName sob_extra; /* not always present */
2046 /* Further data allocated here */
2047 } SyncOperationBuffer;
2050 syncprov_detach_op( Operation *op, syncops *so, slap_overinst *on )
2052 SyncOperationBuffer *sopbuf2;
2057 GroupAssertion *g1, *g2;
2059 /* count the search attrs */
2060 for (i=0; op->ors_attrs && !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2061 alen += op->ors_attrs[i].an_name.bv_len + 1;
2063 /* Make a new copy of the operation */
2064 size = offsetof( SyncOperationBuffer, sob_extra ) +
2065 (i ? ( (i+1) * sizeof(AttributeName) + alen) : 0) +
2066 op->o_req_dn.bv_len + 1 +
2067 op->o_req_ndn.bv_len + 1 +
2068 op->o_ndn.bv_len + 1 +
2069 so->s_filterstr.bv_len + 1;
2070 sopbuf2 = ch_calloc( 1, size );
2071 op2 = &sopbuf2->sob_op;
2072 op2->o_hdr = &sopbuf2->sob_hdr;
2073 LDAP_SLIST_FIRST(&op2->o_extra) = &sopbuf2->sob_oe;
2075 /* Copy the fields we care about explicitly, leave the rest alone */
2076 *op2->o_hdr = *op->o_hdr;
2077 op2->o_tag = op->o_tag;
2078 op2->o_time = op->o_time;
2079 op2->o_bd = on->on_info->oi_origdb;
2080 op2->o_request = op->o_request;
2081 op2->o_managedsait = op->o_managedsait;
2082 LDAP_SLIST_FIRST(&op2->o_extra)->oe_key = on;
2083 LDAP_SLIST_NEXT(LDAP_SLIST_FIRST(&op2->o_extra), oe_next) = NULL;
2085 ptr = (char *) sopbuf2 + offsetof( SyncOperationBuffer, sob_extra );
2087 op2->ors_attrs = (AttributeName *) ptr;
2088 ptr = (char *) &op2->ors_attrs[i+1];
2089 for (i=0; !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2090 op2->ors_attrs[i] = op->ors_attrs[i];
2091 op2->ors_attrs[i].an_name.bv_val = ptr;
2092 ptr = lutil_strcopy( ptr, op->ors_attrs[i].an_name.bv_val ) + 1;
2094 BER_BVZERO( &op2->ors_attrs[i].an_name );
2097 op2->o_authz = op->o_authz;
2098 op2->o_ndn.bv_val = ptr;
2099 ptr = lutil_strcopy(ptr, op->o_ndn.bv_val) + 1;
2100 op2->o_dn = op2->o_ndn;
2101 op2->o_req_dn.bv_len = op->o_req_dn.bv_len;
2102 op2->o_req_dn.bv_val = ptr;
2103 ptr = lutil_strcopy(ptr, op->o_req_dn.bv_val) + 1;
2104 op2->o_req_ndn.bv_len = op->o_req_ndn.bv_len;
2105 op2->o_req_ndn.bv_val = ptr;
2106 ptr = lutil_strcopy(ptr, op->o_req_ndn.bv_val) + 1;
2107 op2->ors_filterstr.bv_val = ptr;
2108 strcpy( ptr, so->s_filterstr.bv_val );
2109 op2->ors_filterstr.bv_len = so->s_filterstr.bv_len;
2111 /* Skip the AND/GE clause that we stuck on in front */
2112 if ( so->s_flags & PS_FIX_FILTER ) {
2113 op2->ors_filter = op->ors_filter->f_and->f_next;
2114 so->s_flags ^= PS_FIX_FILTER;
2116 op2->ors_filter = op->ors_filter;
2118 op2->ors_filter = filter_dup( op2->ors_filter, NULL );
2121 /* Copy any cached group ACLs individually */
2122 op2->o_groups = NULL;
2123 for ( g1=op->o_groups; g1; g1=g1->ga_next ) {
2124 g2 = ch_malloc( sizeof(GroupAssertion) + g1->ga_len );
2126 strcpy( g2->ga_ndn, g1->ga_ndn );
2127 g2->ga_next = op2->o_groups;
2130 /* Don't allow any further group caching */
2131 op2->o_do_not_cache = 1;
2133 /* Add op2 to conn so abandon will find us */
2134 op->o_conn->c_n_ops_executing++;
2135 op->o_conn->c_n_ops_completed--;
2136 LDAP_STAILQ_INSERT_TAIL( &op->o_conn->c_ops, op2, o_next );
2137 so->s_flags |= PS_IS_DETACHED;
2139 /* Prevent anyone else from trying to send a result for this op */
2144 syncprov_search_response( Operation *op, SlapReply *rs )
2146 searchstate *ss = op->o_callback->sc_private;
2147 slap_overinst *on = ss->ss_on;
2148 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2149 sync_control *srs = op->o_controls[slap_cids.sc_LDAPsync];
2151 if ( rs->sr_type == REP_SEARCH || rs->sr_type == REP_SEARCHREF ) {
2153 /* If we got a referral without a referral object, there's
2154 * something missing that we cannot replicate. Just ignore it.
2155 * The consumer will abort because we didn't send the expected
2158 if ( !rs->sr_entry ) {
2159 assert( rs->sr_entry != NULL );
2160 Debug( LDAP_DEBUG_ANY, "bogus referral in context\n",0,0,0 );
2161 return SLAP_CB_CONTINUE;
2163 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryCSN );
2164 if ( a == NULL && rs->sr_operational_attrs != NULL ) {
2165 a = attr_find( rs->sr_operational_attrs, slap_schema.si_ad_entryCSN );
2169 sid = slap_parse_csn_sid( &a->a_nvals[0] );
2171 /* Don't send changed entries back to the originator */
2172 if ( sid == srs->sr_state.sid && srs->sr_state.numcsns ) {
2173 Debug( LDAP_DEBUG_SYNC,
2174 "Entry %s changed by peer, ignored\n",
2175 rs->sr_entry->e_name.bv_val, 0, 0 );
2176 return LDAP_SUCCESS;
2179 /* If not a persistent search */
2181 /* Make sure entry is less than the snapshot'd contextCSN */
2182 for ( i=0; i<ss->ss_numcsns; i++ ) {
2183 if ( sid == ss->ss_sids[i] && ber_bvcmp( &a->a_nvals[0],
2184 &ss->ss_ctxcsn[i] ) > 0 ) {
2185 Debug( LDAP_DEBUG_SYNC,
2186 "Entry %s CSN %s greater than snapshot %s\n",
2187 rs->sr_entry->e_name.bv_val,
2188 a->a_nvals[0].bv_val,
2189 ss->ss_ctxcsn[i].bv_val );
2190 return LDAP_SUCCESS;
2195 /* Don't send old entries twice */
2196 if ( srs->sr_state.ctxcsn ) {
2197 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2198 if ( sid == srs->sr_state.sids[i] &&
2199 ber_bvcmp( &a->a_nvals[0],
2200 &srs->sr_state.ctxcsn[i] )<= 0 ) {
2201 Debug( LDAP_DEBUG_SYNC,
2202 "Entry %s CSN %s older or equal to ctx %s\n",
2203 rs->sr_entry->e_name.bv_val,
2204 a->a_nvals[0].bv_val,
2205 srs->sr_state.ctxcsn[i].bv_val );
2206 return LDAP_SUCCESS;
2211 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2213 rs->sr_ctrls[1] = NULL;
2214 /* If we're in delta-sync mode, always send a cookie */
2215 if ( si->si_nopres && si->si_usehint && a ) {
2216 struct berval cookie;
2217 slap_compose_sync_cookie( op, &cookie, a->a_nvals, srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
2218 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2219 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 1, &cookie );
2221 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2222 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 0, NULL );
2224 } else if ( rs->sr_type == REP_RESULT && rs->sr_err == LDAP_SUCCESS ) {
2225 struct berval cookie = BER_BVNULL;
2227 if ( ( ss->ss_flags & SS_CHANGED ) &&
2228 ss->ss_ctxcsn && !BER_BVISNULL( &ss->ss_ctxcsn[0] )) {
2229 slap_compose_sync_cookie( op, &cookie, ss->ss_ctxcsn,
2230 srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
2232 Debug( LDAP_DEBUG_SYNC, "syncprov_search_response: cookie=%s\n", cookie.bv_val, 0, 0 );
2235 /* Is this a regular refresh?
2236 * Note: refresh never gets here if there were no changes
2239 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2241 rs->sr_ctrls[1] = NULL;
2242 rs->sr_err = syncprov_done_ctrl( op, rs, rs->sr_ctrls,
2243 0, 1, &cookie, ( ss->ss_flags & SS_PRESENT ) ? LDAP_SYNC_REFRESH_PRESENTS :
2244 LDAP_SYNC_REFRESH_DELETES );
2245 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2247 /* It's RefreshAndPersist, transition to Persist phase */
2248 syncprov_sendinfo( op, rs, ( ss->ss_flags & SS_PRESENT ) ?
2249 LDAP_TAG_SYNC_REFRESH_PRESENT : LDAP_TAG_SYNC_REFRESH_DELETE,
2250 ( ss->ss_flags & SS_CHANGED ) ? &cookie : NULL,
2252 if ( !BER_BVISNULL( &cookie ))
2253 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2255 /* Detach this Op from frontend control */
2256 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
2258 /* But not if this connection was closed along the way */
2259 if ( op->o_abandon ) {
2260 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2261 /* syncprov_ab_cleanup will free this syncop */
2262 return SLAPD_ABANDON;
2265 ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex );
2266 /* Turn off the refreshing flag */
2267 ss->ss_so->s_flags ^= PS_IS_REFRESHING;
2269 syncprov_detach_op( op, ss->ss_so, on );
2271 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2273 /* If there are queued responses, fire them off */
2274 if ( ss->ss_so->s_res )
2275 syncprov_qstart( ss->ss_so );
2276 ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
2279 return LDAP_SUCCESS;
2283 return SLAP_CB_CONTINUE;
2287 syncprov_op_search( Operation *op, SlapReply *rs )
2289 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2290 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2292 int gotstate = 0, changed = 0, do_present = 0;
2293 syncops *sop = NULL;
2297 int i, *sids, numcsns;
2298 struct berval mincsn;
2300 if ( !(op->o_sync_mode & SLAP_SYNC_REFRESH) ) return SLAP_CB_CONTINUE;
2302 if ( op->ors_deref & LDAP_DEREF_SEARCHING ) {
2303 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR, "illegal value for derefAliases" );
2307 srs = op->o_controls[slap_cids.sc_LDAPsync];
2309 /* If this is a persistent search, set it up right away */
2310 if ( op->o_sync_mode & SLAP_SYNC_PERSIST ) {
2320 so.s_flags = PS_IS_REFRESHING | PS_FIND_BASE;
2321 /* syncprov_findbase expects to be called as a callback... */
2322 sc.sc_private = &opc;
2324 ldap_pvt_thread_mutex_init( &so.s_mutex );
2325 cb = op->o_callback;
2326 op->o_callback = ≻
2327 rs->sr_err = syncprov_findbase( op, &fc );
2328 op->o_callback = cb;
2329 ldap_pvt_thread_mutex_destroy( &so.s_mutex );
2331 if ( rs->sr_err != LDAP_SUCCESS ) {
2332 send_ldap_result( op, rs );
2335 sop = ch_malloc( sizeof( syncops ));
2337 ldap_pvt_thread_mutex_init( &sop->s_mutex );
2338 sop->s_rid = srs->sr_state.rid;
2339 sop->s_sid = srs->sr_state.sid;
2342 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2343 sop->s_next = si->si_ops;
2345 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2348 /* snapshot the ctxcsn */
2349 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2350 numcsns = si->si_numcsns;
2352 ber_bvarray_dup_x( &ctxcsn, si->si_ctxcsn, op->o_tmpmemctx );
2353 sids = op->o_tmpalloc( numcsns * sizeof(int), op->o_tmpmemctx );
2354 for ( i=0; i<numcsns; i++ )
2355 sids[i] = si->si_sids[i];
2360 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2362 /* If we have a cookie, handle the PRESENT lookups */
2363 if ( srs->sr_state.ctxcsn ) {
2367 /* If we don't have any CSN of our own yet, pretend nothing
2373 if ( !si->si_nopres )
2374 do_present = SS_PRESENT;
2376 /* If there are SIDs we don't recognize in the cookie, drop them */
2377 for (i=0; i<srs->sr_state.numcsns; ) {
2378 for (j=0; j<numcsns; j++) {
2379 if ( srs->sr_state.sids[i] == sids[j] ) {
2384 if ( j == numcsns ) {
2385 struct berval tmp = srs->sr_state.ctxcsn[i];
2386 j = srs->sr_state.numcsns - 1;
2387 srs->sr_state.ctxcsn[i] = srs->sr_state.ctxcsn[j];
2389 srs->sr_state.ctxcsn[j] = tmp;
2390 srs->sr_state.numcsns = j;
2391 srs->sr_state.sids[i] = srs->sr_state.sids[j];
2397 /* Find the smallest CSN */
2398 mincsn = srs->sr_state.ctxcsn[0];
2399 for ( i=1; i<srs->sr_state.numcsns; i++ ) {
2400 if ( ber_bvcmp( &mincsn, &srs->sr_state.ctxcsn[i] ) > 0 )
2401 mincsn = srs->sr_state.ctxcsn[i];
2404 /* If nothing has changed, shortcut it */
2405 if ( srs->sr_state.numcsns == numcsns ) {
2407 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2408 for ( j=0; j<numcsns; j++ ) {
2409 if ( srs->sr_state.sids[i] != sids[j] )
2411 newer = ber_bvcmp( &srs->sr_state.ctxcsn[i], &ctxcsn[j] );
2412 /* If our state is newer, tell consumer about changes */
2414 changed = SS_CHANGED;
2415 else if ( newer > 0 ) {
2416 /* our state is older, tell consumer nothing */
2418 syncops **sp = &si->si_ops;
2420 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2421 while ( *sp != sop )
2422 sp = &(*sp)->s_next;
2424 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2427 rs->sr_err = LDAP_SUCCESS;
2428 rs->sr_ctrls = NULL;
2429 send_ldap_result( op, rs );
2439 no_change: if ( !(op->o_sync_mode & SLAP_SYNC_PERSIST) ) {
2440 LDAPControl *ctrls[2];
2444 syncprov_done_ctrl( op, rs, ctrls, 0, 0,
2445 NULL, LDAP_SYNC_REFRESH_DELETES );
2446 rs->sr_ctrls = ctrls;
2447 rs->sr_err = LDAP_SUCCESS;
2448 send_ldap_result( op, rs );
2449 rs->sr_ctrls = NULL;
2455 /* consumer doesn't have the right number of CSNs */
2456 changed = SS_CHANGED;
2458 /* Do we have a sessionlog for this search? */
2461 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
2462 /* Are there any log entries, and is the consumer state
2463 * present in the session log?
2465 if ( sl->sl_num > 0 && ber_bvcmp( &mincsn, &sl->sl_mincsn ) >= 0 ) {
2467 /* mutex is unlocked in playlog */
2468 syncprov_playlog( op, rs, sl, srs, ctxcsn, numcsns, sids );
2470 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
2473 /* Is the CSN still present in the database? */
2474 if ( syncprov_findcsn( op, FIND_CSN ) != LDAP_SUCCESS ) {
2475 /* No, so a reload is required */
2476 /* the 2.2 consumer doesn't send this hint */
2477 if ( si->si_usehint && srs->sr_rhint == 0 ) {
2479 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2481 op->o_tmpfree( sids, op->o_tmpmemctx );
2482 send_ldap_error( op, rs, LDAP_SYNC_REFRESH_REQUIRED, "sync cookie is stale" );
2485 if ( srs->sr_state.ctxcsn ) {
2486 ber_bvarray_free_x( srs->sr_state.ctxcsn, op->o_tmpmemctx );
2487 srs->sr_state.ctxcsn = NULL;
2489 if ( srs->sr_state.sids ) {
2490 slap_sl_free( srs->sr_state.sids, op->o_tmpmemctx );
2491 srs->sr_state.sids = NULL;
2493 srs->sr_state.numcsns = 0;
2496 /* If changed and doing Present lookup, send Present UUIDs */
2497 if ( do_present && syncprov_findcsn( op, FIND_PRESENT ) !=
2500 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2502 op->o_tmpfree( sids, op->o_tmpmemctx );
2503 send_ldap_result( op, rs );
2508 /* No consumer state, assume something has changed */
2509 changed = SS_CHANGED;
2513 /* Append CSN range to search filter, save original filter
2514 * for persistent search evaluation
2517 sop->s_filterstr= op->ors_filterstr;
2520 /* If something changed, find the changes */
2521 if ( gotstate && changed ) {
2522 Filter *fand, *fava;
2524 fand = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2525 fand->f_choice = LDAP_FILTER_AND;
2526 fand->f_next = NULL;
2527 fava = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2529 fava->f_choice = LDAP_FILTER_GE;
2530 fava->f_ava = op->o_tmpalloc( sizeof(AttributeAssertion), op->o_tmpmemctx );
2531 fava->f_ava->aa_desc = slap_schema.si_ad_entryCSN;
2532 #ifdef LDAP_COMP_MATCH
2533 fava->f_ava->aa_cf = NULL;
2535 ber_dupbv_x( &fava->f_ava->aa_value, &mincsn, op->o_tmpmemctx );
2536 fava->f_next = op->ors_filter;
2537 op->ors_filter = fand;
2538 filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2540 sop->s_flags |= PS_FIX_FILTER;
2543 /* Let our callback add needed info to returned entries */
2544 cb = op->o_tmpcalloc(1, sizeof(slap_callback)+sizeof(searchstate), op->o_tmpmemctx);
2545 ss = (searchstate *)(cb+1);
2548 ss->ss_flags = do_present | changed;
2549 ss->ss_ctxcsn = ctxcsn;
2550 ss->ss_numcsns = numcsns;
2552 cb->sc_response = syncprov_search_response;
2553 cb->sc_cleanup = syncprov_search_cleanup;
2554 cb->sc_private = ss;
2555 cb->sc_next = op->o_callback;
2556 op->o_callback = cb;
2558 /* If this is a persistent search and no changes were reported during
2559 * the refresh phase, just invoke the response callback to transition
2560 * us into persist phase
2563 rs->sr_err = LDAP_SUCCESS;
2564 rs->sr_nentries = 0;
2565 send_ldap_result( op, rs );
2568 return SLAP_CB_CONTINUE;
2572 syncprov_operational(
2576 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2577 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2579 /* This prevents generating unnecessarily; frontend will strip
2580 * any statically stored copy.
2582 if ( op->o_sync != SLAP_CONTROL_NONE )
2583 return SLAP_CB_CONTINUE;
2585 if ( rs->sr_entry &&
2586 dn_match( &rs->sr_entry->e_nname, op->o_bd->be_nsuffix )) {
2588 if ( SLAP_OPATTRS( rs->sr_attr_flags ) ||
2589 ad_inlist( slap_schema.si_ad_contextCSN, rs->sr_attrs )) {
2590 Attribute *a, **ap = NULL;
2592 for ( a=rs->sr_entry->e_attrs; a; a=a->a_next ) {
2593 if ( a->a_desc == slap_schema.si_ad_contextCSN )
2597 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2598 if ( si->si_ctxcsn ) {
2600 for ( ap = &rs->sr_operational_attrs; *ap;
2601 ap=&(*ap)->a_next );
2603 a = attr_alloc( slap_schema.si_ad_contextCSN );
2608 if ( !(rs->sr_flags & REP_ENTRY_MODIFIABLE) ) {
2609 Entry *e = entry_dup( rs->sr_entry );
2610 if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
2611 overlay_entry_release_ov( op, rs->sr_entry, 0, on );
2612 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
2613 } else if ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) {
2614 entry_free( rs->sr_entry );
2618 REP_ENTRY_MODIFIABLE|REP_ENTRY_MUSTBEFREED;
2619 a = attr_find( rs->sr_entry->e_attrs,
2620 slap_schema.si_ad_contextCSN );
2622 if ( a->a_nvals != a->a_vals ) {
2623 ber_bvarray_free( a->a_nvals );
2626 ber_bvarray_free( a->a_vals );
2630 attr_valadd( a, si->si_ctxcsn, si->si_ctxcsn, si->si_numcsns );
2632 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2635 return SLAP_CB_CONTINUE;
2645 static ConfigDriver sp_cf_gen;
2647 static ConfigTable spcfg[] = {
2648 { "syncprov-checkpoint", "ops> <minutes", 3, 3, 0, ARG_MAGIC|SP_CHKPT,
2649 sp_cf_gen, "( OLcfgOvAt:1.1 NAME 'olcSpCheckpoint' "
2650 "DESC 'ContextCSN checkpoint interval in ops and minutes' "
2651 "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
2652 { "syncprov-sessionlog", "ops", 2, 2, 0, ARG_INT|ARG_MAGIC|SP_SESSL,
2653 sp_cf_gen, "( OLcfgOvAt:1.2 NAME 'olcSpSessionlog' "
2654 "DESC 'Session log size in ops' "
2655 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
2656 { "syncprov-nopresent", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_NOPRES,
2657 sp_cf_gen, "( OLcfgOvAt:1.3 NAME 'olcSpNoPresent' "
2658 "DESC 'Omit Present phase processing' "
2659 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2660 { "syncprov-reloadhint", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_USEHINT,
2661 sp_cf_gen, "( OLcfgOvAt:1.4 NAME 'olcSpReloadHint' "
2662 "DESC 'Observe Reload Hint in Request control' "
2663 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2664 { NULL, NULL, 0, 0, 0, ARG_IGNORED }
2667 static ConfigOCs spocs[] = {
2668 { "( OLcfgOvOc:1.1 "
2669 "NAME 'olcSyncProvConfig' "
2670 "DESC 'SyncRepl Provider configuration' "
2671 "SUP olcOverlayConfig "
2672 "MAY ( olcSpCheckpoint "
2673 "$ olcSpSessionlog "
2675 "$ olcSpReloadHint "
2677 Cft_Overlay, spcfg },
2682 sp_cf_gen(ConfigArgs *c)
2684 slap_overinst *on = (slap_overinst *)c->bi;
2685 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2688 if ( c->op == SLAP_CONFIG_EMIT ) {
2689 switch ( c->type ) {
2691 if ( si->si_chkops || si->si_chktime ) {
2693 /* we assume si_chktime is a multiple of 60
2694 * because the parsed value was originally
2695 * multiplied by 60 */
2696 bv.bv_len = snprintf( c->cr_msg, sizeof( c->cr_msg ),
2697 "%d %d", si->si_chkops, si->si_chktime/60 );
2698 if ( bv.bv_len >= sizeof( c->cr_msg ) ) {
2701 bv.bv_val = c->cr_msg;
2702 value_add_one( &c->rvalue_vals, &bv );
2709 if ( si->si_logs ) {
2710 c->value_int = si->si_logs->sl_size;
2716 if ( si->si_nopres ) {
2723 if ( si->si_usehint ) {
2731 } else if ( c->op == LDAP_MOD_DELETE ) {
2732 switch ( c->type ) {
2739 si->si_logs->sl_size = 0;
2741 rc = LDAP_NO_SUCH_ATTRIBUTE;
2744 if ( si->si_nopres )
2747 rc = LDAP_NO_SUCH_ATTRIBUTE;
2750 if ( si->si_usehint )
2753 rc = LDAP_NO_SUCH_ATTRIBUTE;
2758 switch ( c->type ) {
2760 if ( lutil_atoi( &si->si_chkops, c->argv[1] ) != 0 ) {
2761 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint ops # \"%s\"",
2762 c->argv[0], c->argv[1] );
2763 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2764 "%s: %s\n", c->log, c->cr_msg, 0 );
2765 return ARG_BAD_CONF;
2767 if ( si->si_chkops <= 0 ) {
2768 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint ops # \"%d\"",
2769 c->argv[0], si->si_chkops );
2770 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2771 "%s: %s\n", c->log, c->cr_msg, 0 );
2772 return ARG_BAD_CONF;
2774 if ( lutil_atoi( &si->si_chktime, c->argv[2] ) != 0 ) {
2775 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint time \"%s\"",
2776 c->argv[0], c->argv[1] );
2777 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2778 "%s: %s\n", c->log, c->cr_msg, 0 );
2779 return ARG_BAD_CONF;
2781 if ( si->si_chktime <= 0 ) {
2782 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint time \"%d\"",
2783 c->argv[0], si->si_chkops );
2784 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2785 "%s: %s\n", c->log, c->cr_msg, 0 );
2786 return ARG_BAD_CONF;
2788 si->si_chktime *= 60;
2792 int size = c->value_int;
2795 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s size %d is negative",
2797 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2798 "%s: %s\n", c->log, c->cr_msg, 0 );
2799 return ARG_BAD_CONF;
2803 sl = ch_malloc( sizeof( sessionlog ) + LDAP_LUTIL_CSNSTR_BUFSIZE );
2804 sl->sl_mincsn.bv_val = (char *)(sl+1);
2805 sl->sl_mincsn.bv_len = 0;
2807 sl->sl_head = sl->sl_tail = NULL;
2808 ldap_pvt_thread_mutex_init( &sl->sl_mutex );
2815 si->si_nopres = c->value_int;
2818 si->si_usehint = c->value_int;
2824 /* ITS#3456 we cannot run this search on the main thread, must use a
2825 * child thread in order to insure we have a big enough stack.
2832 syncprov_findcsn( ptr, FIND_MAXCSN );
2836 /* Read any existing contextCSN from the underlying db.
2837 * Then search for any entries newer than that. If no value exists,
2838 * just generate it. Cache whatever result.
2846 slap_overinst *on = (slap_overinst *) be->bd_info;
2847 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2849 Connection conn = { 0 };
2850 OperationBuffer opbuf;
2855 void *thrctx = NULL;
2857 if ( !SLAP_LASTMOD( be )) {
2858 Debug( LDAP_DEBUG_ANY,
2859 "syncprov_db_open: invalid config, lastmod must be enabled\n", 0, 0, 0 );
2863 if ( slapMode & SLAP_TOOL_MODE ) {
2867 rc = overlay_register_control( be, LDAP_CONTROL_SYNC );
2872 thrctx = ldap_pvt_thread_pool_context();
2873 connection_fake_init( &conn, &opbuf, thrctx );
2876 op->o_dn = be->be_rootdn;
2877 op->o_ndn = be->be_rootndn;
2879 rc = overlay_entry_get_ov( op, be->be_nsuffix, NULL,
2880 slap_schema.si_ad_contextCSN, 0, &e, on );
2883 ldap_pvt_thread_t tid;
2885 a = attr_find( e->e_attrs, slap_schema.si_ad_contextCSN );
2887 ber_bvarray_dup_x( &si->si_ctxcsn, a->a_vals, NULL );
2888 si->si_numcsns = a->a_numvals;
2889 si->si_sids = slap_parse_csn_sids( si->si_ctxcsn, a->a_numvals, NULL );
2891 overlay_entry_release_ov( op, e, 0, on );
2892 if ( si->si_ctxcsn && !SLAP_DBCLEAN( be )) {
2893 op->o_req_dn = be->be_suffix[0];
2894 op->o_req_ndn = be->be_nsuffix[0];
2895 op->ors_scope = LDAP_SCOPE_SUBTREE;
2896 ldap_pvt_thread_create( &tid, 0, syncprov_db_otask, op );
2897 ldap_pvt_thread_join( tid, NULL );
2901 /* Didn't find a contextCSN, should we generate one? */
2902 if ( !si->si_ctxcsn ) {
2903 char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
2906 if ( SLAP_SYNC_SHADOW( op->o_bd )) {
2907 /* If we're also a consumer, then don't generate anything.
2908 * Wait for our provider to send it to us, or for a local
2909 * modify if we have multimaster.
2913 csn.bv_val = csnbuf;
2914 csn.bv_len = sizeof( csnbuf );
2915 slap_get_csn( op, &csn, 0 );
2916 value_add_one( &si->si_ctxcsn, &csn );
2918 si->si_sids = ch_malloc( sizeof(int) );
2919 si->si_sids[0] = slap_serverID;
2921 /* make sure we do a checkpoint on close */
2926 op->o_bd->bd_info = (BackendInfo *)on;
2930 /* Write the current contextCSN into the underlying db.
2938 slap_overinst *on = (slap_overinst *) be->bd_info;
2939 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2941 if ( slapMode & SLAP_TOOL_MODE ) {
2944 if ( si->si_numops ) {
2945 Connection conn = {0};
2946 OperationBuffer opbuf;
2948 SlapReply rs = {REP_RESULT};
2951 thrctx = ldap_pvt_thread_pool_context();
2952 connection_fake_init( &conn, &opbuf, thrctx );
2955 op->o_dn = be->be_rootdn;
2956 op->o_ndn = be->be_rootndn;
2957 syncprov_checkpoint( op, &rs, on );
2969 slap_overinst *on = (slap_overinst *)be->bd_info;
2970 syncprov_info_t *si;
2972 if ( SLAP_ISGLOBALOVERLAY( be ) ) {
2973 Debug( LDAP_DEBUG_ANY,
2974 "syncprov must be instantiated within a database.\n",
2979 si = ch_calloc(1, sizeof(syncprov_info_t));
2980 on->on_bi.bi_private = si;
2981 ldap_pvt_thread_rdwr_init( &si->si_csn_rwlock );
2982 ldap_pvt_thread_mutex_init( &si->si_ops_mutex );
2983 ldap_pvt_thread_mutex_init( &si->si_mods_mutex );
2984 ldap_pvt_thread_mutex_init( &si->si_resp_mutex );
2986 csn_anlist[0].an_desc = slap_schema.si_ad_entryCSN;
2987 csn_anlist[0].an_name = slap_schema.si_ad_entryCSN->ad_cname;
2988 csn_anlist[1].an_desc = slap_schema.si_ad_entryUUID;
2989 csn_anlist[1].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2991 uuid_anlist[0].an_desc = slap_schema.si_ad_entryUUID;
2992 uuid_anlist[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2998 syncprov_db_destroy(
3003 slap_overinst *on = (slap_overinst *)be->bd_info;
3004 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3007 if ( si->si_logs ) {
3008 slog_entry *se = si->si_logs->sl_head;
3011 slog_entry *se_next = se->se_next;
3016 ch_free( si->si_logs );
3018 if ( si->si_ctxcsn )
3019 ber_bvarray_free( si->si_ctxcsn );
3021 ch_free( si->si_sids );
3022 ldap_pvt_thread_mutex_destroy( &si->si_resp_mutex );
3023 ldap_pvt_thread_mutex_destroy( &si->si_mods_mutex );
3024 ldap_pvt_thread_mutex_destroy( &si->si_ops_mutex );
3025 ldap_pvt_thread_rdwr_destroy( &si->si_csn_rwlock );
3032 static int syncprov_parseCtrl (
3038 BerElementBuffer berbuf;
3039 BerElement *ber = (BerElement *)&berbuf;
3042 struct berval cookie = BER_BVNULL;
3046 if ( op->o_sync != SLAP_CONTROL_NONE ) {
3047 rs->sr_text = "Sync control specified multiple times";
3048 return LDAP_PROTOCOL_ERROR;
3051 if ( op->o_pagedresults != SLAP_CONTROL_NONE ) {
3052 rs->sr_text = "Sync control specified with pagedResults control";
3053 return LDAP_PROTOCOL_ERROR;
3056 if ( BER_BVISNULL( &ctrl->ldctl_value ) ) {
3057 rs->sr_text = "Sync control value is absent";
3058 return LDAP_PROTOCOL_ERROR;
3061 if ( BER_BVISEMPTY( &ctrl->ldctl_value ) ) {
3062 rs->sr_text = "Sync control value is empty";
3063 return LDAP_PROTOCOL_ERROR;
3066 /* Parse the control value
3067 * syncRequestValue ::= SEQUENCE {
3072 * refreshAndPersist (3)
3074 * cookie syncCookie OPTIONAL
3078 ber_init2( ber, &ctrl->ldctl_value, 0 );
3080 if ( (tag = ber_scanf( ber, "{i" /*}*/, &mode )) == LBER_ERROR ) {
3081 rs->sr_text = "Sync control : mode decoding error";
3082 return LDAP_PROTOCOL_ERROR;
3086 case LDAP_SYNC_REFRESH_ONLY:
3087 mode = SLAP_SYNC_REFRESH;
3089 case LDAP_SYNC_REFRESH_AND_PERSIST:
3090 mode = SLAP_SYNC_REFRESH_AND_PERSIST;
3093 rs->sr_text = "Sync control : unknown update mode";
3094 return LDAP_PROTOCOL_ERROR;
3097 tag = ber_peek_tag( ber, &len );
3099 if ( tag == LDAP_TAG_SYNC_COOKIE ) {
3100 if (( ber_scanf( ber, /*{*/ "m", &cookie )) == LBER_ERROR ) {
3101 rs->sr_text = "Sync control : cookie decoding error";
3102 return LDAP_PROTOCOL_ERROR;
3104 tag = ber_peek_tag( ber, &len );
3106 if ( tag == LDAP_TAG_RELOAD_HINT ) {
3107 if (( ber_scanf( ber, /*{*/ "b", &rhint )) == LBER_ERROR ) {
3108 rs->sr_text = "Sync control : rhint decoding error";
3109 return LDAP_PROTOCOL_ERROR;
3112 if (( ber_scanf( ber, /*{*/ "}")) == LBER_ERROR ) {
3113 rs->sr_text = "Sync control : decoding error";
3114 return LDAP_PROTOCOL_ERROR;
3116 sr = op->o_tmpcalloc( 1, sizeof(struct sync_control), op->o_tmpmemctx );
3117 sr->sr_rhint = rhint;
3118 if (!BER_BVISNULL(&cookie)) {
3119 ber_dupbv_x( &sr->sr_state.octet_str, &cookie, op->o_tmpmemctx );
3120 /* If parse fails, pretend no cookie was sent */
3121 if ( slap_parse_sync_cookie( &sr->sr_state, op->o_tmpmemctx ) ||
3122 sr->sr_state.rid == -1 ) {
3123 if ( sr->sr_state.ctxcsn ) {
3124 ber_bvarray_free_x( sr->sr_state.ctxcsn, op->o_tmpmemctx );
3125 sr->sr_state.ctxcsn = NULL;
3127 sr->sr_state.numcsns = 0;
3131 op->o_controls[slap_cids.sc_LDAPsync] = sr;
3133 op->o_sync = ctrl->ldctl_iscritical
3134 ? SLAP_CONTROL_CRITICAL
3135 : SLAP_CONTROL_NONCRITICAL;
3137 op->o_sync_mode |= mode; /* o_sync_mode shares o_sync */
3139 return LDAP_SUCCESS;
3142 /* This overlay is set up for dynamic loading via moduleload. For static
3143 * configuration, you'll need to arrange for the slap_overinst to be
3144 * initialized and registered by some other function inside slapd.
3147 static slap_overinst syncprov;
3150 syncprov_initialize()
3154 rc = register_supported_control( LDAP_CONTROL_SYNC,
3155 SLAP_CTRL_SEARCH, NULL,
3156 syncprov_parseCtrl, &slap_cids.sc_LDAPsync );
3157 if ( rc != LDAP_SUCCESS ) {
3158 Debug( LDAP_DEBUG_ANY,
3159 "syncprov_init: Failed to register control %d\n", rc, 0, 0 );
3163 syncprov.on_bi.bi_type = "syncprov";
3164 syncprov.on_bi.bi_db_init = syncprov_db_init;
3165 syncprov.on_bi.bi_db_destroy = syncprov_db_destroy;
3166 syncprov.on_bi.bi_db_open = syncprov_db_open;
3167 syncprov.on_bi.bi_db_close = syncprov_db_close;
3169 syncprov.on_bi.bi_op_abandon = syncprov_op_abandon;
3170 syncprov.on_bi.bi_op_cancel = syncprov_op_abandon;
3172 syncprov.on_bi.bi_op_add = syncprov_op_mod;
3173 syncprov.on_bi.bi_op_compare = syncprov_op_compare;
3174 syncprov.on_bi.bi_op_delete = syncprov_op_mod;
3175 syncprov.on_bi.bi_op_modify = syncprov_op_mod;
3176 syncprov.on_bi.bi_op_modrdn = syncprov_op_mod;
3177 syncprov.on_bi.bi_op_search = syncprov_op_search;
3178 syncprov.on_bi.bi_extended = syncprov_op_extended;
3179 syncprov.on_bi.bi_operational = syncprov_operational;
3181 syncprov.on_bi.bi_cf_ocs = spocs;
3183 generic_filter.f_desc = slap_schema.si_ad_objectClass;
3185 rc = config_register_schema( spcfg, spocs );
3186 if ( rc ) return rc;
3188 return overlay_register( &syncprov );
3191 #if SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC
3193 init_module( int argc, char *argv[] )
3195 return syncprov_initialize();
3197 #endif /* SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC */
3199 #endif /* defined(SLAPD_OVER_SYNCPROV) */