2 /* syncprov.c - syncrepl provider */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2004-2009 The OpenLDAP Foundation.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted only as authorized by the OpenLDAP
12 * A copy of this license is available in the file LICENSE in the
13 * top-level directory of the distribution or, alternatively, at
14 * <http://www.OpenLDAP.org/license.html>.
17 * This work was initially developed by Howard Chu for inclusion in
23 #ifdef SLAPD_OVER_SYNCPROV
25 #include <ac/string.h>
35 /* A modify request on a particular entry */
36 typedef struct modinst {
37 struct modinst *mi_next;
41 typedef struct modtarget {
42 struct modinst *mt_mods;
43 struct modinst *mt_tail;
45 ldap_pvt_thread_mutex_t mt_mutex;
48 /* A queued result of a persistent search */
49 typedef struct syncres {
50 struct syncres *s_next;
59 /* Record of a persistent search */
60 typedef struct syncops {
61 struct syncops *s_next;
62 struct berval s_base; /* ndn of search base */
63 ID s_eid; /* entryID of search base */
64 Operation *s_op; /* search op */
67 struct berval s_filterstr;
68 int s_flags; /* search status */
69 #define PS_IS_REFRESHING 0x01
70 #define PS_IS_DETACHED 0x02
71 #define PS_WROTE_BASE 0x04
72 #define PS_FIND_BASE 0x08
73 #define PS_FIX_FILTER 0x10
74 #define PS_TASK_QUEUED 0x20
76 int s_inuse; /* reference count */
77 struct syncres *s_res;
78 struct syncres *s_restail;
79 ldap_pvt_thread_mutex_t s_mutex;
82 /* A received sync control */
83 typedef struct sync_control {
84 struct sync_cookie sr_state;
88 #if 0 /* moved back to slap.h */
89 #define o_sync o_ctrlflag[slap_cids.sc_LDAPsync]
91 /* o_sync_mode uses data bits of o_sync */
92 #define o_sync_mode o_ctrlflag[slap_cids.sc_LDAPsync]
94 #define SLAP_SYNC_NONE (LDAP_SYNC_NONE<<SLAP_CONTROL_SHIFT)
95 #define SLAP_SYNC_REFRESH (LDAP_SYNC_REFRESH_ONLY<<SLAP_CONTROL_SHIFT)
96 #define SLAP_SYNC_PERSIST (LDAP_SYNC_RESERVED<<SLAP_CONTROL_SHIFT)
97 #define SLAP_SYNC_REFRESH_AND_PERSIST (LDAP_SYNC_REFRESH_AND_PERSIST<<SLAP_CONTROL_SHIFT)
99 /* Record of which searches matched at premodify step */
100 typedef struct syncmatches {
101 struct syncmatches *sm_next;
105 /* Session log data */
106 typedef struct slog_entry {
107 struct slog_entry *se_next;
108 struct berval se_uuid;
109 struct berval se_csn;
114 typedef struct sessionlog {
115 struct berval sl_mincsn;
120 ldap_pvt_thread_mutex_t sl_mutex;
123 /* The main state for this overlay */
124 typedef struct syncprov_info_t {
126 BerVarray si_ctxcsn; /* ldapsync context */
127 struct berval si_contextdn;
130 int si_chkops; /* checkpointing info */
132 int si_numops; /* number of ops since last checkpoint */
133 int si_nopres; /* Skip present phase */
134 int si_usehint; /* use reload hint */
135 time_t si_chklast; /* time of last checkpoint */
136 Avlnode *si_mods; /* entries being modified */
138 ldap_pvt_thread_rdwr_t si_csn_rwlock;
139 ldap_pvt_thread_mutex_t si_ops_mutex;
140 ldap_pvt_thread_mutex_t si_mods_mutex;
141 ldap_pvt_thread_mutex_t si_resp_mutex;
144 typedef struct opcookie {
146 syncmatches *smatches;
148 struct berval sdn; /* DN of entry, for deletes */
150 struct berval suuid; /* UUID of entry */
151 struct berval sctxcsn;
152 short osid; /* sid of op csn */
153 short rsid; /* sid of relay */
154 short sreference; /* Is the entry a reference? */
157 typedef struct fbase_cookie {
158 struct berval *fdn; /* DN of a modified entry, for scope testing */
159 syncops *fss; /* persistent search we're testing against */
160 int fbase; /* if TRUE we found the search base and it's still valid */
161 int fscope; /* if TRUE then fdn is within the psearch scope */
164 static AttributeName csn_anlist[3];
165 static AttributeName uuid_anlist[2];
167 /* Build a LDAPsync intermediate state control */
173 int entry_sync_state,
177 struct berval *cookie )
182 BerElementBuffer berbuf;
183 BerElement *ber = (BerElement *)&berbuf;
185 struct berval entryuuid_bv = BER_BVNULL;
187 ber_init2( ber, 0, LBER_USE_DER );
188 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
190 ctrls[num_ctrls] = op->o_tmpalloc( sizeof ( LDAPControl ), op->o_tmpmemctx );
192 for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
193 AttributeDescription *desc = a->a_desc;
194 if ( desc == slap_schema.si_ad_entryUUID ) {
195 entryuuid_bv = a->a_nvals[0];
200 /* FIXME: what if entryuuid is NULL or empty ? */
202 if ( send_cookie && cookie ) {
203 ber_printf( ber, "{eOON}",
204 entry_sync_state, &entryuuid_bv, cookie );
206 ber_printf( ber, "{eON}",
207 entry_sync_state, &entryuuid_bv );
210 ctrls[num_ctrls]->ldctl_oid = LDAP_CONTROL_SYNC_STATE;
211 ctrls[num_ctrls]->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
212 ret = ber_flatten2( ber, &ctrls[num_ctrls]->ldctl_value, 1 );
217 Debug( LDAP_DEBUG_TRACE,
218 "slap_build_sync_ctrl: ber_flatten2 failed\n",
220 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
227 /* Build a LDAPsync final state control */
235 struct berval *cookie,
239 BerElementBuffer berbuf;
240 BerElement *ber = (BerElement *)&berbuf;
242 ber_init2( ber, NULL, LBER_USE_DER );
243 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
245 ctrls[num_ctrls] = op->o_tmpalloc( sizeof ( LDAPControl ), op->o_tmpmemctx );
247 ber_printf( ber, "{" );
248 if ( send_cookie && cookie ) {
249 ber_printf( ber, "O", cookie );
251 if ( refreshDeletes == LDAP_SYNC_REFRESH_DELETES ) {
252 ber_printf( ber, "b", refreshDeletes );
254 ber_printf( ber, "N}" );
256 ctrls[num_ctrls]->ldctl_oid = LDAP_CONTROL_SYNC_DONE;
257 ctrls[num_ctrls]->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
258 ret = ber_flatten2( ber, &ctrls[num_ctrls]->ldctl_value, 1 );
263 Debug( LDAP_DEBUG_TRACE,
264 "syncprov_done_ctrl: ber_flatten2 failed\n",
266 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
278 struct berval *cookie,
283 BerElementBuffer berbuf;
284 BerElement *ber = (BerElement *)&berbuf;
285 struct berval rspdata;
289 ber_init2( ber, NULL, LBER_USE_DER );
290 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
294 case LDAP_TAG_SYNC_NEW_COOKIE:
295 ber_printf( ber, "tO", type, cookie );
297 case LDAP_TAG_SYNC_REFRESH_DELETE:
298 case LDAP_TAG_SYNC_REFRESH_PRESENT:
299 ber_printf( ber, "t{", type );
301 ber_printf( ber, "O", cookie );
303 if ( refreshDone == 0 ) {
304 ber_printf( ber, "b", refreshDone );
306 ber_printf( ber, "N}" );
308 case LDAP_TAG_SYNC_ID_SET:
309 ber_printf( ber, "t{", type );
311 ber_printf( ber, "O", cookie );
313 if ( refreshDeletes == 1 ) {
314 ber_printf( ber, "b", refreshDeletes );
316 ber_printf( ber, "[W]", syncUUIDs );
317 ber_printf( ber, "N}" );
320 Debug( LDAP_DEBUG_TRACE,
321 "syncprov_sendinfo: invalid syncinfo type (%d)\n",
327 ret = ber_flatten2( ber, &rspdata, 0 );
330 Debug( LDAP_DEBUG_TRACE,
331 "syncprov_sendinfo: ber_flatten2 failed\n",
333 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
337 rs->sr_rspoid = LDAP_SYNC_INFO;
338 rs->sr_rspdata = &rspdata;
339 send_ldap_intermediate( op, rs );
340 rs->sr_rspdata = NULL;
346 /* Find a modtarget in an AVL tree */
348 sp_avl_cmp( const void *c1, const void *c2 )
350 const modtarget *m1, *m2;
354 rc = m1->mt_op->o_req_ndn.bv_len - m2->mt_op->o_req_ndn.bv_len;
357 return ber_bvcmp( &m1->mt_op->o_req_ndn, &m2->mt_op->o_req_ndn );
360 /* syncprov_findbase:
361 * finds the true DN of the base of a search (with alias dereferencing) and
362 * checks to make sure the base entry doesn't get replaced with a different
363 * entry (e.g., swapping trees via ModDN, or retargeting an alias). If a
364 * change is detected, any persistent search on this base must be terminated /
366 * On the first call, we just save the DN and entryID. On subsequent calls
367 * we compare the DN and entryID with the saved values.
370 findbase_cb( Operation *op, SlapReply *rs )
372 slap_callback *sc = op->o_callback;
374 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
375 fbase_cookie *fc = sc->sc_private;
377 /* If no entryID, we're looking for the first time.
378 * Just store whatever we got.
380 if ( fc->fss->s_eid == NOID ) {
382 fc->fss->s_eid = rs->sr_entry->e_id;
383 ber_dupbv( &fc->fss->s_base, &rs->sr_entry->e_nname );
385 } else if ( rs->sr_entry->e_id == fc->fss->s_eid &&
386 dn_match( &rs->sr_entry->e_nname, &fc->fss->s_base )) {
388 /* OK, the DN is the same and the entryID is the same. */
392 if ( rs->sr_err != LDAP_SUCCESS ) {
393 Debug( LDAP_DEBUG_ANY, "findbase failed! %d\n", rs->sr_err,0,0 );
398 static Filter generic_filter = { LDAP_FILTER_PRESENT, { 0 }, NULL };
399 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
402 syncprov_findbase( Operation *op, fbase_cookie *fc )
404 /* Use basic parameters from syncrepl search, but use
405 * current op's threadctx / tmpmemctx
407 ldap_pvt_thread_mutex_lock( &fc->fss->s_mutex );
408 if ( fc->fss->s_flags & PS_FIND_BASE ) {
409 slap_callback cb = {0};
411 SlapReply frs = { REP_RESULT };
414 fc->fss->s_flags ^= PS_FIND_BASE;
415 ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
417 fop = *fc->fss->s_op;
419 fop.o_bd = fop.o_bd->bd_self;
420 fop.o_hdr = op->o_hdr;
421 fop.o_time = op->o_time;
422 fop.o_tincr = op->o_tincr;
424 cb.sc_response = findbase_cb;
427 fop.o_sync_mode = 0; /* turn off sync mode */
428 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
429 fop.o_callback = &cb;
430 fop.o_tag = LDAP_REQ_SEARCH;
431 fop.ors_scope = LDAP_SCOPE_BASE;
432 fop.ors_limit = NULL;
434 fop.ors_tlimit = SLAP_NO_LIMIT;
435 fop.ors_attrs = slap_anlist_no_attrs;
436 fop.ors_attrsonly = 1;
437 fop.ors_filter = &generic_filter;
438 fop.ors_filterstr = generic_filterstr;
440 rc = fop.o_bd->be_search( &fop, &frs );
442 ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
446 /* After the first call, see if the fdn resides in the scope */
447 if ( fc->fbase == 1 ) {
448 switch ( fc->fss->s_op->ors_scope ) {
449 case LDAP_SCOPE_BASE:
450 fc->fscope = dn_match( fc->fdn, &fc->fss->s_base );
452 case LDAP_SCOPE_ONELEVEL: {
454 dnParent( fc->fdn, &pdn );
455 fc->fscope = dn_match( &pdn, &fc->fss->s_base );
457 case LDAP_SCOPE_SUBTREE:
458 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base );
460 case LDAP_SCOPE_SUBORDINATE:
461 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base ) &&
462 !dn_match( fc->fdn, &fc->fss->s_base );
470 /* If entryID has changed, then the base of this search has
471 * changed. Invalidate the psearch.
473 return LDAP_NO_SUCH_OBJECT;
477 * This function has three different purposes, but they all use a search
478 * that filters on entryCSN so they're combined here.
479 * 1: at startup time, after a contextCSN has been read from the database,
480 * we search for all entries with CSN >= contextCSN in case the contextCSN
481 * was not checkpointed at the previous shutdown.
483 * 2: when the current contextCSN is known and we have a sync cookie, we search
484 * for one entry with CSN = the cookie CSN. If not found, try <= cookie CSN.
485 * If an entry is found, the cookie CSN is valid, otherwise it is stale.
487 * 3: during a refresh phase, we search for all entries with CSN <= the cookie
488 * CSN, and generate Present records for them. We always collect this result
489 * in SyncID sets, even if there's only one match.
491 typedef enum find_csn_t {
498 findmax_cb( Operation *op, SlapReply *rs )
500 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
501 struct berval *maxcsn = op->o_callback->sc_private;
502 Attribute *a = attr_find( rs->sr_entry->e_attrs,
503 slap_schema.si_ad_entryCSN );
505 if ( a && ber_bvcmp( &a->a_vals[0], maxcsn ) > 0 &&
506 slap_parse_csn_sid( &a->a_vals[0] ) == slap_serverID ) {
507 maxcsn->bv_len = a->a_vals[0].bv_len;
508 strcpy( maxcsn->bv_val, a->a_vals[0].bv_val );
515 findcsn_cb( Operation *op, SlapReply *rs )
517 slap_callback *sc = op->o_callback;
519 /* We just want to know that at least one exists, so it's OK if
520 * we exceed the unchecked limit.
522 if ( rs->sr_err == LDAP_ADMINLIMIT_EXCEEDED ||
523 (rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS )) {
524 sc->sc_private = (void *)1;
529 /* Build a list of entryUUIDs for sending in a SyncID set */
533 typedef struct fpres_cookie {
540 findpres_cb( Operation *op, SlapReply *rs )
542 slap_callback *sc = op->o_callback;
543 fpres_cookie *pc = sc->sc_private;
545 int ret = SLAP_CB_CONTINUE;
547 switch ( rs->sr_type ) {
549 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
551 pc->uuids[pc->num].bv_val = pc->last;
552 AC_MEMCPY( pc->uuids[pc->num].bv_val, a->a_nvals[0].bv_val,
553 pc->uuids[pc->num].bv_len );
555 pc->last = pc->uuids[pc->num].bv_val;
556 pc->uuids[pc->num].bv_val = NULL;
559 if ( pc->num != SLAP_SYNCUUID_SET_SIZE )
565 ret = syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET, NULL,
567 pc->uuids[pc->num].bv_val = pc->last;
569 pc->last = pc->uuids[0].bv_val;
579 syncprov_findcsn( Operation *op, find_csn_t mode )
581 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
582 syncprov_info_t *si = on->on_bi.bi_private;
584 slap_callback cb = {0};
586 SlapReply frs = { REP_RESULT };
587 char buf[LDAP_LUTIL_CSNSTR_BUFSIZE + STRLENOF("(entryCSN<=)")];
588 char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
589 struct berval maxcsn;
591 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
592 fpres_cookie pcookie;
593 sync_control *srs = NULL;
594 struct slap_limits_set fc_limits;
595 int i, rc = LDAP_SUCCESS, findcsn_retry = 1;
598 if ( mode != FIND_MAXCSN ) {
599 srs = op->o_controls[slap_cids.sc_LDAPsync];
603 fop.o_sync_mode &= SLAP_CONTROL_MASK; /* turn off sync_mode */
604 /* We want pure entries, not referrals */
605 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
608 cf.f_av_desc = slap_schema.si_ad_entryCSN;
609 BER_BVZERO( &cf.f_av_value );
612 fop.o_callback = &cb;
613 fop.ors_limit = NULL;
614 fop.ors_tlimit = SLAP_NO_LIMIT;
615 fop.ors_filter = &cf;
616 fop.ors_filterstr.bv_val = buf;
621 cf.f_choice = LDAP_FILTER_GE;
622 /* If there are multiple CSNs, use the one with our serverID */
623 for ( i=0; i<si->si_numcsns; i++) {
624 if ( slap_serverID == si->si_sids[i] ) {
629 if ( i == si->si_numcsns ) {
630 /* No match: this is multimaster, and none of the content in the DB
631 * originated locally. Treat like no CSN.
633 return LDAP_NO_SUCH_OBJECT;
635 cf.f_av_value = si->si_ctxcsn[maxid];
636 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
637 "(entryCSN>=%s)", cf.f_av_value.bv_val );
638 if ( fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
641 fop.ors_attrsonly = 0;
642 fop.ors_attrs = csn_anlist;
643 fop.ors_slimit = SLAP_NO_LIMIT;
644 cb.sc_private = &maxcsn;
645 cb.sc_response = findmax_cb;
646 strcpy( cbuf, cf.f_av_value.bv_val );
647 maxcsn.bv_val = cbuf;
648 maxcsn.bv_len = cf.f_av_value.bv_len;
651 if ( BER_BVISEMPTY( &cf.f_av_value )) {
652 cf.f_av_value = srs->sr_state.ctxcsn[0];
653 /* If there are multiple CSNs, use the smallest */
654 for ( i=1; i<srs->sr_state.numcsns; i++ ) {
655 if ( ber_bvcmp( &cf.f_av_value, &srs->sr_state.ctxcsn[i] )
657 cf.f_av_value = srs->sr_state.ctxcsn[i];
661 /* Look for exact match the first time */
662 if ( findcsn_retry ) {
663 cf.f_choice = LDAP_FILTER_EQUALITY;
664 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
665 "(entryCSN=%s)", cf.f_av_value.bv_val );
666 /* On retry, look for <= */
668 cf.f_choice = LDAP_FILTER_LE;
669 fop.ors_limit = &fc_limits;
670 memset( &fc_limits, 0, sizeof( fc_limits ));
671 fc_limits.lms_s_unchecked = 1;
672 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
673 "(entryCSN<=%s)", cf.f_av_value.bv_val );
675 if ( fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
678 fop.ors_attrsonly = 1;
679 fop.ors_attrs = slap_anlist_no_attrs;
681 cb.sc_private = NULL;
682 cb.sc_response = findcsn_cb;
685 fop.ors_filter = op->ors_filter;
686 fop.ors_filterstr = op->ors_filterstr;
687 fop.ors_attrsonly = 0;
688 fop.ors_attrs = uuid_anlist;
689 fop.ors_slimit = SLAP_NO_LIMIT;
690 cb.sc_private = &pcookie;
691 cb.sc_response = findpres_cb;
694 /* preallocate storage for a full set */
695 pcookie.uuids = op->o_tmpalloc( (SLAP_SYNCUUID_SET_SIZE+1) *
696 sizeof(struct berval) + SLAP_SYNCUUID_SET_SIZE * UUID_LEN,
698 pcookie.last = (char *)(pcookie.uuids + SLAP_SYNCUUID_SET_SIZE+1);
699 pcookie.uuids[0].bv_val = pcookie.last;
700 pcookie.uuids[0].bv_len = UUID_LEN;
701 for (i=1; i<SLAP_SYNCUUID_SET_SIZE; i++) {
702 pcookie.uuids[i].bv_val = pcookie.uuids[i-1].bv_val + UUID_LEN;
703 pcookie.uuids[i].bv_len = UUID_LEN;
708 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
709 fop.o_bd->be_search( &fop, &frs );
710 fop.o_bd->bd_info = (BackendInfo *)on;
714 if ( ber_bvcmp( &si->si_ctxcsn[maxid], &maxcsn )) {
716 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
717 assert( !syn->ssyn_validate( syn, &maxcsn ));
719 ber_bvreplace( &si->si_ctxcsn[maxid], &maxcsn );
720 si->si_numops++; /* ensure a checkpoint */
724 /* If matching CSN was not found, invalidate the context. */
725 if ( !cb.sc_private ) {
726 /* If we didn't find an exact match, then try for <= */
727 if ( findcsn_retry ) {
731 rc = LDAP_NO_SUCH_OBJECT;
735 op->o_tmpfree( pcookie.uuids, op->o_tmpmemctx );
743 syncprov_free_syncop( syncops *so )
745 syncres *sr, *srnext;
746 GroupAssertion *ga, *gnext;
748 ldap_pvt_thread_mutex_lock( &so->s_mutex );
749 if ( --so->s_inuse > 0 ) {
750 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
753 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
754 if ( so->s_flags & PS_IS_DETACHED ) {
755 filter_free( so->s_op->ors_filter );
756 for ( ga = so->s_op->o_groups; ga; ga=gnext ) {
762 ch_free( so->s_base.bv_val );
763 for ( sr=so->s_res; sr; sr=srnext ) {
767 ldap_pvt_thread_mutex_destroy( &so->s_mutex );
771 /* Send a persistent search response */
773 syncprov_sendresp( Operation *op, opcookie *opc, syncops *so,
774 Entry **e, int mode )
776 slap_overinst *on = opc->son;
778 SlapReply rs = { REP_SEARCH };
779 LDAPControl *ctrls[2];
780 struct berval cookie = BER_BVNULL, csns[2];
782 Attribute a_uuid = {0};
784 if ( so->s_op->o_abandon )
785 return SLAPD_ABANDON;
788 if ( !BER_BVISNULL( &opc->sctxcsn )) {
789 csns[0] = opc->sctxcsn;
790 BER_BVZERO( &csns[1] );
791 slap_compose_sync_cookie( op, &cookie, csns, so->s_rid, slap_serverID ? slap_serverID : -1 );
795 if ( so->s_sid > 0 ) {
796 Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: to=%03x, cookie=%s\n",
797 so->s_sid, cookie.bv_val ? cookie.bv_val : "", 0 );
799 Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: cookie=%s\n",
800 cookie.bv_val ? cookie.bv_val : "", 0, 0 );
804 e_uuid.e_attrs = &a_uuid;
805 a_uuid.a_desc = slap_schema.si_ad_entryUUID;
806 a_uuid.a_nvals = &opc->suuid;
807 rs.sr_err = syncprov_state_ctrl( op, &rs, &e_uuid,
808 mode, ctrls, 0, 1, &cookie );
809 if ( !BER_BVISNULL( &cookie )) {
810 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
814 op->o_bd->bd_info = (BackendInfo *)on->on_info;
818 if ( rs.sr_entry->e_private )
819 rs.sr_flags = REP_ENTRY_MUSTRELEASE;
820 if ( opc->sreference && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
821 rs.sr_ref = get_entry_referrals( op, rs.sr_entry );
822 rs.sr_err = send_search_reference( op, &rs );
823 ber_bvarray_free( rs.sr_ref );
829 case LDAP_SYNC_MODIFY:
831 if ( rs.sr_entry->e_private )
832 rs.sr_flags = REP_ENTRY_MUSTRELEASE;
833 rs.sr_attrs = op->ors_attrs;
834 rs.sr_err = send_search_entry( op, &rs );
838 case LDAP_SYNC_DELETE:
839 e_uuid.e_attrs = NULL;
840 e_uuid.e_name = opc->sdn;
841 e_uuid.e_nname = opc->sndn;
842 rs.sr_entry = &e_uuid;
843 if ( opc->sreference && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
844 struct berval bv = BER_BVNULL;
846 rs.sr_err = send_search_reference( op, &rs );
848 rs.sr_err = send_search_entry( op, &rs );
854 /* In case someone else freed it already? */
857 for ( i=0; rs.sr_ctrls[i]; i++ ) {
858 if ( rs.sr_ctrls[i] == ctrls[0] ) {
859 op->o_tmpfree( ctrls[0]->ldctl_value.bv_val, op->o_tmpmemctx );
860 ctrls[0]->ldctl_value.bv_val = NULL;
871 syncprov_qstart( syncops *so );
873 /* Play back queued responses */
875 syncprov_qplay( Operation *op, syncops *so )
877 slap_overinst *on = LDAP_SLIST_FIRST(&so->s_op->o_extra)->oe_key;
886 ldap_pvt_thread_mutex_lock( &so->s_mutex );
889 so->s_res = sr->s_next;
891 so->s_restail = NULL;
892 /* Exit loop with mutex held */
893 if ( !sr || so->s_op->o_abandon )
895 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
897 if ( sr->s_mode == LDAP_SYNC_NEW_COOKIE ) {
898 SlapReply rs = { REP_INTERMEDIATE };
900 rc = syncprov_sendinfo( op, &rs, LDAP_TAG_SYNC_NEW_COOKIE,
901 &sr->s_csn, 0, NULL, 0 );
904 opc.sndn = sr->s_ndn;
905 opc.suuid = sr->s_uuid;
906 opc.sctxcsn = sr->s_csn;
907 opc.sreference = sr->s_isreference;
910 if ( sr->s_mode != LDAP_SYNC_DELETE ) {
911 rc = overlay_entry_get_ov( op, &opc.sndn, NULL, NULL, 0, &e, on );
913 Debug( LDAP_DEBUG_SYNC, "syncprov_qplay: failed to get %s, "
914 "error (%d), ignoring...\n", opc.sndn.bv_val, rc, 0 );
920 rc = syncprov_sendresp( op, &opc, so, &e, sr->s_mode );
923 overlay_entry_release_ov( op, e, 0, on );
929 /* Exit loop with mutex held */
930 ldap_pvt_thread_mutex_lock( &so->s_mutex );
934 /* We now only send one change at a time, to prevent one
935 * psearch from hogging all the CPU. Resubmit this task if
936 * there are more responses queued and no errors occurred.
939 if ( rc == 0 && so->s_res ) {
940 syncprov_qstart( so );
942 so->s_flags ^= PS_TASK_QUEUED;
945 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
949 /* task for playing back queued responses */
951 syncprov_qtask( void *ctx, void *arg )
954 OperationBuffer opbuf;
961 op->o_hdr = &opbuf.ob_hdr;
962 op->o_controls = opbuf.ob_controls;
963 memset( op->o_controls, 0, sizeof(opbuf.ob_controls) );
965 *op->o_hdr = *so->s_op->o_hdr;
967 op->o_tmpmemctx = slap_sl_mem_create(SLAP_SLAB_SIZE, SLAP_SLAB_STACK, ctx, 1);
968 op->o_tmpmfuncs = &slap_sl_mfuncs;
969 op->o_threadctx = ctx;
971 /* syncprov_qplay expects a fake db */
972 be = *so->s_op->o_bd;
973 be.be_flags |= SLAP_DBFLAG_OVERLAY;
975 LDAP_SLIST_FIRST(&op->o_extra) = NULL;
976 op->o_callback = NULL;
978 rc = syncprov_qplay( op, so );
980 /* decrement use count... */
981 syncprov_free_syncop( so );
986 /* Start the task to play back queued psearch responses */
988 syncprov_qstart( syncops *so )
990 so->s_flags |= PS_TASK_QUEUED;
992 ldap_pvt_thread_pool_submit( &connection_pool,
993 syncprov_qtask, so );
996 /* Queue a persistent search response */
998 syncprov_qresp( opcookie *opc, syncops *so, int mode )
1002 struct berval cookie = opc->sctxcsn;
1004 if ( mode == LDAP_SYNC_NEW_COOKIE ) {
1005 syncprov_info_t *si = opc->son->on_bi.bi_private;
1007 slap_compose_sync_cookie( NULL, &cookie, si->si_ctxcsn,
1008 so->s_rid, slap_serverID ? slap_serverID : -1);
1011 srsize = sizeof(syncres) + opc->suuid.bv_len + 1 +
1012 opc->sdn.bv_len + 1 + opc->sndn.bv_len + 1;
1013 if ( cookie.bv_len )
1014 srsize += cookie.bv_len + 1;
1015 sr = ch_malloc( srsize );
1017 sr->s_dn.bv_val = (char *)(sr + 1);
1018 sr->s_dn.bv_len = opc->sdn.bv_len;
1020 sr->s_isreference = opc->sreference;
1021 sr->s_ndn.bv_val = lutil_strcopy( sr->s_dn.bv_val,
1022 opc->sdn.bv_val ) + 1;
1023 sr->s_ndn.bv_len = opc->sndn.bv_len;
1024 sr->s_uuid.bv_val = lutil_strcopy( sr->s_ndn.bv_val,
1025 opc->sndn.bv_val ) + 1;
1026 sr->s_uuid.bv_len = opc->suuid.bv_len;
1027 AC_MEMCPY( sr->s_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1028 if ( cookie.bv_len ) {
1029 sr->s_csn.bv_val = sr->s_uuid.bv_val + sr->s_uuid.bv_len + 1;
1030 strcpy( sr->s_csn.bv_val, cookie.bv_val );
1032 sr->s_csn.bv_val = NULL;
1034 sr->s_csn.bv_len = cookie.bv_len;
1036 if ( mode == LDAP_SYNC_NEW_COOKIE && cookie.bv_val ) {
1037 ch_free( cookie.bv_val );
1040 ldap_pvt_thread_mutex_lock( &so->s_mutex );
1044 so->s_restail->s_next = sr;
1048 /* If the base of the psearch was modified, check it next time round */
1049 if ( so->s_flags & PS_WROTE_BASE ) {
1050 so->s_flags ^= PS_WROTE_BASE;
1051 so->s_flags |= PS_FIND_BASE;
1053 if (( so->s_flags & (PS_IS_DETACHED|PS_TASK_QUEUED)) == PS_IS_DETACHED ) {
1054 syncprov_qstart( so );
1056 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
1057 return LDAP_SUCCESS;
1061 syncprov_drop_psearch( syncops *so, int lock )
1063 if ( so->s_flags & PS_IS_DETACHED ) {
1065 ldap_pvt_thread_mutex_lock( &so->s_op->o_conn->c_mutex );
1066 so->s_op->o_conn->c_n_ops_executing--;
1067 so->s_op->o_conn->c_n_ops_completed++;
1068 LDAP_STAILQ_REMOVE( &so->s_op->o_conn->c_ops, so->s_op, Operation,
1071 ldap_pvt_thread_mutex_unlock( &so->s_op->o_conn->c_mutex );
1073 syncprov_free_syncop( so );
1079 syncprov_ab_cleanup( Operation *op, SlapReply *rs )
1081 slap_callback *sc = op->o_callback;
1082 op->o_callback = sc->sc_next;
1083 syncprov_drop_psearch( op->o_callback->sc_private, 0 );
1084 op->o_tmpfree( sc, op->o_tmpmemctx );
1089 syncprov_op_abandon( Operation *op, SlapReply *rs )
1091 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1092 syncprov_info_t *si = on->on_bi.bi_private;
1093 syncops *so, *soprev;
1095 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1096 for ( so=si->si_ops, soprev = (syncops *)&si->si_ops; so;
1097 soprev=so, so=so->s_next ) {
1098 if ( so->s_op->o_connid == op->o_connid &&
1099 so->s_op->o_msgid == op->orn_msgid ) {
1100 so->s_op->o_abandon = 1;
1101 soprev->s_next = so->s_next;
1105 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1107 /* Is this really a Cancel exop? */
1108 if ( op->o_tag != LDAP_REQ_ABANDON ) {
1109 so->s_op->o_cancel = SLAP_CANCEL_ACK;
1110 rs->sr_err = LDAP_CANCELLED;
1111 send_ldap_result( so->s_op, rs );
1112 if ( so->s_flags & PS_IS_DETACHED ) {
1114 cb = op->o_tmpcalloc( 1, sizeof(slap_callback), op->o_tmpmemctx );
1115 cb->sc_cleanup = syncprov_ab_cleanup;
1116 cb->sc_next = op->o_callback;
1117 cb->sc_private = so;
1118 return SLAP_CB_CONTINUE;
1121 syncprov_drop_psearch( so, 0 );
1123 return SLAP_CB_CONTINUE;
1126 /* Find which persistent searches are affected by this operation */
1128 syncprov_matchops( Operation *op, opcookie *opc, int saveit )
1130 slap_overinst *on = opc->son;
1131 syncprov_info_t *si = on->on_bi.bi_private;
1134 syncops *ss, *sprev, *snext;
1138 struct berval newdn;
1140 BackendDB *b0 = op->o_bd, db;
1142 fc.fdn = &op->o_req_ndn;
1143 /* compute new DN */
1144 if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1146 if ( op->orr_nnewSup ) pdn = *op->orr_nnewSup;
1147 else dnParent( fc.fdn, &pdn );
1148 build_new_dn( &newdn, &pdn, &op->orr_nnewrdn, op->o_tmpmemctx );
1152 if ( op->o_tag != LDAP_REQ_ADD ) {
1153 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1157 rc = overlay_entry_get_ov( op, fc.fdn, NULL, NULL, 0, &e, on );
1158 /* If we're sending responses now, make a copy and unlock the DB */
1159 if ( e && !saveit ) {
1160 Entry *e2 = entry_dup( e );
1161 overlay_entry_release_ov( op, e, 0, on );
1172 if ( saveit || op->o_tag == LDAP_REQ_ADD ) {
1173 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1174 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1175 opc->sreference = is_entry_referral( e );
1176 a = attr_find( e->e_attrs, slap_schema.si_ad_entryUUID );
1178 ber_dupbv_x( &opc->suuid, &a->a_nvals[0], op->o_tmpmemctx );
1179 } else if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1180 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1181 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1182 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1183 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1186 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1187 for (ss = si->si_ops, sprev = (syncops *)&si->si_ops; ss;
1188 sprev = ss, ss=snext)
1196 if ( ss->s_op->o_abandon )
1199 /* Don't send ops back to the originator */
1200 if ( opc->osid > 0 && opc->osid == ss->s_sid ) {
1201 Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping original sid %03x\n",
1206 /* Don't send ops back to the messenger */
1207 if ( opc->rsid > 0 && opc->rsid == ss->s_sid ) {
1208 Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping relayed sid %03x\n",
1218 /* If the base of the search is missing, signal a refresh */
1219 rc = syncprov_findbase( op, &fc );
1220 if ( rc != LDAP_SUCCESS ) {
1221 SlapReply rs = {REP_RESULT};
1222 send_ldap_error( ss->s_op, &rs, LDAP_SYNC_REFRESH_REQUIRED,
1223 "search base has changed" );
1224 sprev->s_next = snext;
1225 syncprov_drop_psearch( ss, 1 );
1231 /* If we're sending results now, look for this op in old matches */
1235 /* Did we modify the search base? */
1236 if ( dn_match( &op->o_req_ndn, &ss->s_base )) {
1237 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1238 ss->s_flags |= PS_WROTE_BASE;
1239 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1242 for ( sm=opc->smatches, old=(syncmatches *)&opc->smatches; sm;
1243 old=sm, sm=sm->sm_next ) {
1244 if ( sm->sm_op == ss ) {
1246 old->sm_next = sm->sm_next;
1247 op->o_tmpfree( sm, op->o_tmpmemctx );
1256 oh.oh_conn = ss->s_op->o_conn;
1257 oh.oh_connid = ss->s_op->o_connid;
1258 op2.o_bd = op->o_bd->bd_self;
1260 op2.o_extra = op->o_extra;
1261 op2.o_callback = NULL;
1262 rc = test_filter( &op2, e, ss->s_op->ors_filter );
1265 Debug( LDAP_DEBUG_TRACE, "syncprov_matchops: sid %03x fscope %d rc %d\n",
1266 ss->s_sid, fc.fscope, rc );
1268 /* check if current o_req_dn is in scope and matches filter */
1269 if ( fc.fscope && rc == LDAP_COMPARE_TRUE ) {
1271 sm = op->o_tmpalloc( sizeof(syncmatches), op->o_tmpmemctx );
1272 sm->sm_next = opc->smatches;
1274 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1276 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1279 /* if found send UPDATE else send ADD */
1280 syncprov_qresp( opc, ss,
1281 found ? LDAP_SYNC_MODIFY : LDAP_SYNC_ADD );
1283 } else if ( !saveit && found ) {
1285 syncprov_qresp( opc, ss, LDAP_SYNC_DELETE );
1286 } else if ( !saveit ) {
1287 syncprov_qresp( opc, ss, LDAP_SYNC_NEW_COOKIE );
1289 if ( !saveit && found ) {
1290 /* Decrement s_inuse, was incremented when called
1291 * with saveit == TRUE
1293 syncprov_free_syncop( ss );
1296 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1298 if ( op->o_tag != LDAP_REQ_ADD && e ) {
1299 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1302 overlay_entry_release_ov( op, e, 0, on );
1306 op->o_tmpfree( fc.fdn->bv_val, op->o_tmpmemctx );
1312 syncprov_op_cleanup( Operation *op, SlapReply *rs )
1314 slap_callback *cb = op->o_callback;
1315 opcookie *opc = cb->sc_private;
1316 slap_overinst *on = opc->son;
1317 syncprov_info_t *si = on->on_bi.bi_private;
1318 syncmatches *sm, *snext;
1319 modtarget *mt, mtdummy;
1321 for (sm = opc->smatches; sm; sm=snext) {
1322 snext = sm->sm_next;
1323 syncprov_free_syncop( sm->sm_op );
1324 op->o_tmpfree( sm, op->o_tmpmemctx );
1327 /* Remove op from lock table */
1330 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1331 mt->mt_mods = mt->mt_mods->mi_next;
1332 /* If there are more, promote the next one */
1333 if ( mt->mt_mods ) {
1334 mt->mt_op = mt->mt_mods->mi_op;
1335 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1337 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1338 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1339 avl_delete( &si->si_mods, mt, sp_avl_cmp );
1340 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1341 ldap_pvt_thread_mutex_destroy( &mt->mt_mutex );
1345 if ( !BER_BVISNULL( &opc->suuid ))
1346 op->o_tmpfree( opc->suuid.bv_val, op->o_tmpmemctx );
1347 if ( !BER_BVISNULL( &opc->sndn ))
1348 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1349 if ( !BER_BVISNULL( &opc->sdn ))
1350 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1351 op->o_callback = cb->sc_next;
1352 op->o_tmpfree(cb, op->o_tmpmemctx);
1358 syncprov_checkpoint( Operation *op, SlapReply *rs, slap_overinst *on )
1360 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
1363 SlapReply rsm = { 0 };
1364 slap_callback cb = {0};
1368 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1371 for ( i=0; i<si->si_numcsns; i++ ) {
1372 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1375 mod.sml_numvals = si->si_numcsns;
1376 mod.sml_values = si->si_ctxcsn;
1377 mod.sml_nvalues = NULL;
1378 mod.sml_desc = slap_schema.si_ad_contextCSN;
1379 mod.sml_op = LDAP_MOD_REPLACE;
1380 mod.sml_flags = SLAP_MOD_INTERNAL;
1381 mod.sml_next = NULL;
1383 cb.sc_response = slap_null_cb;
1385 opm.o_tag = LDAP_REQ_MODIFY;
1386 opm.o_callback = &cb;
1387 opm.orm_modlist = &mod;
1388 opm.orm_no_opattrs = 1;
1389 if ( SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1390 be = *on->on_info->oi_origdb;
1393 opm.o_req_dn = si->si_contextdn;
1394 opm.o_req_ndn = si->si_contextdn;
1395 opm.o_bd->bd_info = on->on_info->oi_orig;
1396 opm.o_managedsait = SLAP_CONTROL_NONCRITICAL;
1397 opm.o_no_schema_check = 1;
1398 opm.o_bd->be_modify( &opm, &rsm );
1400 if ( rsm.sr_err == LDAP_NO_SUCH_OBJECT &&
1401 SLAP_SYNC_SUBENTRY( opm.o_bd )) {
1403 char txtbuf[SLAP_TEXT_BUFLEN];
1404 size_t textlen = sizeof txtbuf;
1405 Entry *e = slap_create_context_csn_entry( opm.o_bd, NULL );
1406 slap_mods2entry( &mod, &e, 0, 1, &text, txtbuf, textlen);
1408 opm.o_bd->be_add( &opm, &rsm );
1409 if ( e == opm.ora_e )
1410 be_entry_release_w( &opm, opm.ora_e );
1413 if ( mod.sml_next != NULL ) {
1414 slap_mods_free( mod.sml_next, 1 );
1417 for ( i=0; i<si->si_numcsns; i++ ) {
1418 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1424 syncprov_add_slog( Operation *op )
1426 opcookie *opc = op->o_callback->sc_private;
1427 slap_overinst *on = opc->son;
1428 syncprov_info_t *si = on->on_bi.bi_private;
1434 /* Allocate a record. UUIDs are not NUL-terminated. */
1435 se = ch_malloc( sizeof( slog_entry ) + opc->suuid.bv_len +
1436 op->o_csn.bv_len + 1 );
1438 se->se_tag = op->o_tag;
1440 se->se_uuid.bv_val = (char *)(&se[1]);
1441 AC_MEMCPY( se->se_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1442 se->se_uuid.bv_len = opc->suuid.bv_len;
1444 se->se_csn.bv_val = se->se_uuid.bv_val + opc->suuid.bv_len;
1445 AC_MEMCPY( se->se_csn.bv_val, op->o_csn.bv_val, op->o_csn.bv_len );
1446 se->se_csn.bv_val[op->o_csn.bv_len] = '\0';
1447 se->se_csn.bv_len = op->o_csn.bv_len;
1448 se->se_sid = slap_parse_csn_sid( &se->se_csn );
1450 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1451 if ( sl->sl_head ) {
1452 sl->sl_tail->se_next = se;
1458 while ( sl->sl_num > sl->sl_size ) {
1460 sl->sl_head = se->se_next;
1461 strcpy( sl->sl_mincsn.bv_val, se->se_csn.bv_val );
1462 sl->sl_mincsn.bv_len = se->se_csn.bv_len;
1466 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1470 /* Just set a flag if we found the matching entry */
1472 playlog_cb( Operation *op, SlapReply *rs )
1474 if ( rs->sr_type == REP_SEARCH ) {
1475 op->o_callback->sc_private = (void *)1;
1480 /* enter with sl->sl_mutex locked, release before returning */
1482 syncprov_playlog( Operation *op, SlapReply *rs, sessionlog *sl,
1483 sync_control *srs, BerVarray ctxcsn, int numcsns, int *sids )
1485 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1487 int i, j, ndel, num, nmods, mmods;
1488 char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
1490 struct berval delcsn[2];
1492 if ( !sl->sl_num ) {
1493 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1501 uuids = op->o_tmpalloc( (num+1) * sizeof( struct berval ) +
1502 num * UUID_LEN, op->o_tmpmemctx );
1503 uuids[0].bv_val = (char *)(uuids + num + 1);
1505 delcsn[0].bv_len = 0;
1506 delcsn[0].bv_val = cbuf;
1507 BER_BVZERO(&delcsn[1]);
1509 /* Make a copy of the relevant UUIDs. Put the Deletes up front
1510 * and everything else at the end. Do this first so we can
1511 * unlock the list mutex.
1513 Debug( LDAP_DEBUG_SYNC, "srs csn %s\n",
1514 srs->sr_state.ctxcsn[0].bv_val, 0, 0 );
1515 for ( se=sl->sl_head; se; se=se->se_next ) {
1517 Debug( LDAP_DEBUG_SYNC, "log csn %s\n", se->se_csn.bv_val, 0, 0 );
1519 for ( k=0; k<srs->sr_state.numcsns; k++ ) {
1520 if ( se->se_sid == srs->sr_state.sids[k] ) {
1521 ndel = ber_bvcmp( &se->se_csn, &srs->sr_state.ctxcsn[k] );
1526 Debug( LDAP_DEBUG_SYNC, "cmp %d, too old\n", ndel, 0, 0 );
1530 for ( k=0; k<numcsns; k++ ) {
1531 if ( se->se_sid == sids[k] ) {
1532 ndel = ber_bvcmp( &se->se_csn, &ctxcsn[k] );
1537 Debug( LDAP_DEBUG_SYNC, "cmp %d, too new\n", ndel, 0, 0 );
1540 if ( se->se_tag == LDAP_REQ_DELETE ) {
1543 AC_MEMCPY( cbuf, se->se_csn.bv_val, se->se_csn.bv_len );
1544 delcsn[0].bv_len = se->se_csn.bv_len;
1545 delcsn[0].bv_val[delcsn[0].bv_len] = '\0';
1550 uuids[j].bv_val = uuids[0].bv_val + (j * UUID_LEN);
1551 AC_MEMCPY(uuids[j].bv_val, se->se_uuid.bv_val, UUID_LEN);
1552 uuids[j].bv_len = UUID_LEN;
1554 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1558 /* Zero out unused slots */
1559 for ( i=ndel; i < num - nmods; i++ )
1560 uuids[i].bv_len = 0;
1562 /* Mods must be validated to see if they belong in this delete set.
1566 /* Strip any duplicates */
1567 for ( i=0; i<nmods; i++ ) {
1568 for ( j=0; j<ndel; j++ ) {
1569 if ( bvmatch( &uuids[j], &uuids[num - 1 - i] )) {
1570 uuids[num - 1 - i].bv_len = 0;
1575 if ( uuids[num - 1 - i].bv_len == 0 ) continue;
1576 for ( j=0; j<i; j++ ) {
1577 if ( bvmatch( &uuids[num - 1 - j], &uuids[num - 1 - i] )) {
1578 uuids[num - 1 - i].bv_len = 0;
1587 SlapReply frs = { REP_RESULT };
1590 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
1591 slap_callback cb = {0};
1595 fop.o_sync_mode = 0;
1596 fop.o_callback = &cb;
1597 fop.ors_limit = NULL;
1598 fop.ors_tlimit = SLAP_NO_LIMIT;
1599 fop.ors_attrs = slap_anlist_all_attributes;
1600 fop.ors_attrsonly = 0;
1601 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
1603 af.f_choice = LDAP_FILTER_AND;
1606 mf.f_choice = LDAP_FILTER_EQUALITY;
1608 mf.f_av_desc = slap_schema.si_ad_entryUUID;
1609 mf.f_next = fop.ors_filter;
1611 fop.ors_filter = ⁡
1613 cb.sc_response = playlog_cb;
1614 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
1616 for ( i=ndel; i<num; i++ ) {
1617 if ( uuids[i].bv_len == 0 ) continue;
1619 mf.f_av_value = uuids[i];
1620 cb.sc_private = NULL;
1622 frs.sr_nentries = 0;
1623 rc = fop.o_bd->be_search( &fop, &frs );
1625 /* If entry was not found, add to delete list */
1626 if ( !cb.sc_private ) {
1627 uuids[ndel++] = uuids[i];
1630 fop.o_bd->bd_info = (BackendInfo *)on;
1633 struct berval cookie;
1635 if ( delcsn[0].bv_len ) {
1636 slap_compose_sync_cookie( op, &cookie, delcsn, srs->sr_state.rid,
1637 slap_serverID ? slap_serverID : -1 );
1639 Debug( LDAP_DEBUG_SYNC, "syncprov_playlog: cookie=%s\n", cookie.bv_val, 0, 0 );
1642 uuids[ndel].bv_val = NULL;
1643 syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET,
1644 delcsn[0].bv_len ? &cookie : NULL, 0, uuids, 1 );
1645 if ( delcsn[0].bv_len ) {
1646 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
1649 op->o_tmpfree( uuids, op->o_tmpmemctx );
1653 syncprov_op_response( Operation *op, SlapReply *rs )
1655 opcookie *opc = op->o_callback->sc_private;
1656 slap_overinst *on = opc->son;
1657 syncprov_info_t *si = on->on_bi.bi_private;
1660 if ( rs->sr_err == LDAP_SUCCESS )
1662 struct berval maxcsn;
1663 char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
1664 int do_check = 0, have_psearches, foundit, csn_changed = 0;
1666 ldap_pvt_thread_mutex_lock( &si->si_resp_mutex );
1668 /* Update our context CSN */
1670 maxcsn.bv_val = cbuf;
1671 maxcsn.bv_len = sizeof(cbuf);
1672 ldap_pvt_thread_rdwr_wlock( &si->si_csn_rwlock );
1674 if ( op->o_dont_replicate && op->o_tag == LDAP_REQ_MODIFY &&
1675 op->orm_modlist->sml_op == LDAP_MOD_REPLACE &&
1676 op->orm_modlist->sml_desc == slap_schema.si_ad_contextCSN ) {
1677 /* Catch contextCSN updates from syncrepl. We have to look at
1678 * all the attribute values, as there may be more than one csn
1679 * that changed, and only one can be passed in the csn queue.
1681 Modifications *mod = op->orm_modlist;
1684 for ( i=0; i<mod->sml_numvals; i++ ) {
1685 sid = slap_parse_csn_sid( &mod->sml_values[i] );
1687 for ( j=0; j<si->si_numcsns; j++ ) {
1688 if ( sid == si->si_sids[j] ) {
1689 if ( ber_bvcmp( &mod->sml_values[i], &si->si_ctxcsn[j] ) > 0 ) {
1690 ber_bvreplace( &si->si_ctxcsn[j], &mod->sml_values[i] );
1697 if ( j == si->si_numcsns ) {
1698 value_add_one( &si->si_ctxcsn, &mod->sml_values[i] );
1700 si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
1702 si->si_sids[j] = sid;
1706 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1708 if ( csn_changed ) {
1709 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1710 have_psearches = ( si->si_ops != NULL );
1711 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1713 if ( have_psearches ) {
1714 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1715 if ( sm->sm_op->s_op->o_abandon )
1717 syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_NEW_COOKIE );
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;
1764 } else if ( !foundit ) {
1765 /* internal ops that aren't meant to be replicated */
1766 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1767 return SLAP_CB_CONTINUE;
1771 /* Don't do any processing for consumer contextCSN updates */
1772 if ( op->o_dont_replicate ) {
1773 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1778 if ( si->si_chkops || si->si_chktime ) {
1779 /* Never checkpoint adding the context entry,
1782 if ( op->o_tag != LDAP_REQ_ADD ||
1783 !dn_match( &op->o_req_ndn, &si->si_contextdn )) {
1784 if ( si->si_chkops && si->si_numops >= si->si_chkops ) {
1788 if ( si->si_chktime &&
1789 (op->o_time - si->si_chklast >= si->si_chktime )) {
1790 if ( si->si_chklast ) {
1792 si->si_chklast = op->o_time;
1799 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1802 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1803 syncprov_checkpoint( op, rs, on );
1804 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1807 /* only update consumer ctx if this is a newer csn */
1808 if ( csn_changed ) {
1809 opc->sctxcsn = maxcsn;
1812 /* Handle any persistent searches */
1813 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1814 have_psearches = ( si->si_ops != NULL );
1815 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1816 if ( have_psearches ) {
1819 case LDAP_REQ_MODIFY:
1820 case LDAP_REQ_MODRDN:
1821 case LDAP_REQ_EXTENDED:
1822 syncprov_matchops( op, opc, 0 );
1824 case LDAP_REQ_DELETE:
1825 /* for each match in opc->smatches:
1828 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1829 if ( sm->sm_op->s_op->o_abandon )
1831 syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_DELETE );
1837 /* Add any log records */
1838 if ( si->si_logs && op->o_tag != LDAP_REQ_ADD ) {
1839 syncprov_add_slog( op );
1841 leave: ldap_pvt_thread_mutex_unlock( &si->si_resp_mutex );
1843 return SLAP_CB_CONTINUE;
1846 /* We don't use a subentry to store the context CSN any more.
1847 * We expose the current context CSN as an operational attribute
1848 * of the suffix entry.
1851 syncprov_op_compare( Operation *op, SlapReply *rs )
1853 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1854 syncprov_info_t *si = on->on_bi.bi_private;
1855 int rc = SLAP_CB_CONTINUE;
1857 if ( dn_match( &op->o_req_ndn, &si->si_contextdn ) &&
1858 op->oq_compare.rs_ava->aa_desc == slap_schema.si_ad_contextCSN )
1863 e.e_name = si->si_contextdn;
1864 e.e_nname = si->si_contextdn;
1867 a.a_desc = slap_schema.si_ad_contextCSN;
1869 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1871 a.a_vals = si->si_ctxcsn;
1872 a.a_nvals = a.a_vals;
1873 a.a_numvals = si->si_numcsns;
1875 rs->sr_err = access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc,
1876 &op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL );
1877 if ( ! rs->sr_err ) {
1878 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1879 goto return_results;
1882 if ( get_assert( op ) &&
1883 ( test_filter( op, &e, get_assertion( op ) ) != LDAP_COMPARE_TRUE ) )
1885 rs->sr_err = LDAP_ASSERTION_FAILED;
1886 goto return_results;
1890 rs->sr_err = LDAP_COMPARE_FALSE;
1892 if ( attr_valfind( &a,
1893 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
1894 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
1895 &op->oq_compare.rs_ava->aa_value, NULL, op->o_tmpmemctx ) == 0 )
1897 rs->sr_err = LDAP_COMPARE_TRUE;
1902 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1904 send_ldap_result( op, rs );
1906 if( rs->sr_err == LDAP_COMPARE_FALSE || rs->sr_err == LDAP_COMPARE_TRUE ) {
1907 rs->sr_err = LDAP_SUCCESS;
1916 syncprov_op_mod( Operation *op, SlapReply *rs )
1918 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1919 syncprov_info_t *si = on->on_bi.bi_private;
1922 int have_psearches, cbsize;
1924 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1925 have_psearches = ( si->si_ops != NULL );
1926 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1928 cbsize = sizeof(slap_callback) + sizeof(opcookie) +
1929 (have_psearches ? sizeof(modinst) : 0 );
1931 cb = op->o_tmpcalloc(1, cbsize, op->o_tmpmemctx);
1932 opc = (opcookie *)(cb+1);
1934 cb->sc_response = syncprov_op_response;
1935 cb->sc_cleanup = syncprov_op_cleanup;
1936 cb->sc_private = opc;
1937 cb->sc_next = op->o_callback;
1938 op->o_callback = cb;
1942 if ( op->o_csn.bv_val ) {
1943 opc->osid = slap_parse_csn_sid( &op->o_csn );
1945 if ( op->o_controls ) {
1946 struct sync_cookie *scook =
1947 op->o_controls[slap_cids.sc_LDAPsync];
1949 opc->rsid = scook->sid;
1952 /* If there are active persistent searches, lock this operation.
1953 * See seqmod.c for the locking logic on its own.
1955 if ( have_psearches ) {
1956 modtarget *mt, mtdummy;
1959 mi = (modinst *)(opc+1);
1962 /* See if we're already modifying this entry... */
1964 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1965 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
1967 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1968 if ( mt->mt_mods == NULL ) {
1969 /* Cannot reuse this mt, as another thread is about
1970 * to release it in syncprov_op_cleanup.
1972 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1977 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1978 mt->mt_tail->mi_next = mi;
1980 /* wait for this op to get to head of list */
1981 while ( mt->mt_mods != mi ) {
1982 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1983 /* FIXME: if dynamic config can delete overlays or
1984 * databases we'll have to check for cleanup here.
1985 * Currently it's not an issue because there are
1986 * no dynamic config deletes...
1988 if ( slapd_shutdown )
1989 return SLAPD_ABANDON;
1991 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
1992 ldap_pvt_thread_yield();
1993 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1995 /* clean up if the caller is giving up */
1996 if ( op->o_abandon ) {
1998 for ( m2 = mt->mt_mods; m2->mi_next != mi;
2000 m2->mi_next = mi->mi_next;
2001 if ( mt->mt_tail == mi ) mt->mt_tail = m2;
2002 op->o_tmpfree( cb, op->o_tmpmemctx );
2003 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2004 return SLAPD_ABANDON;
2007 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2009 /* Record that we're modifying this entry now */
2010 mt = ch_malloc( sizeof(modtarget) );
2013 mt->mt_op = mi->mi_op;
2014 ldap_pvt_thread_mutex_init( &mt->mt_mutex );
2015 avl_insert( &si->si_mods, mt, sp_avl_cmp, avl_dup_error );
2016 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
2021 if (( have_psearches || si->si_logs ) && op->o_tag != LDAP_REQ_ADD )
2022 syncprov_matchops( op, opc, 1 );
2024 return SLAP_CB_CONTINUE;
2028 syncprov_op_extended( Operation *op, SlapReply *rs )
2030 if ( exop_is_write( op ))
2031 return syncprov_op_mod( op, rs );
2033 return SLAP_CB_CONTINUE;
2036 typedef struct searchstate {
2037 slap_overinst *ss_on;
2039 BerVarray ss_ctxcsn;
2042 #define SS_PRESENT 0x01
2043 #define SS_CHANGED 0x02
2048 syncprov_search_cleanup( Operation *op, SlapReply *rs )
2050 if ( rs->sr_ctrls ) {
2051 op->o_tmpfree( rs->sr_ctrls[0], op->o_tmpmemctx );
2052 op->o_tmpfree( rs->sr_ctrls, op->o_tmpmemctx );
2053 rs->sr_ctrls = NULL;
2058 typedef struct SyncOperationBuffer {
2062 AttributeName sob_extra; /* not always present */
2063 /* Further data allocated here */
2064 } SyncOperationBuffer;
2067 syncprov_detach_op( Operation *op, syncops *so, slap_overinst *on )
2069 SyncOperationBuffer *sopbuf2;
2074 GroupAssertion *g1, *g2;
2076 /* count the search attrs */
2077 for (i=0; op->ors_attrs && !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2078 alen += op->ors_attrs[i].an_name.bv_len + 1;
2080 /* Make a new copy of the operation */
2081 size = offsetof( SyncOperationBuffer, sob_extra ) +
2082 (i ? ( (i+1) * sizeof(AttributeName) + alen) : 0) +
2083 op->o_req_dn.bv_len + 1 +
2084 op->o_req_ndn.bv_len + 1 +
2085 op->o_ndn.bv_len + 1 +
2086 so->s_filterstr.bv_len + 1;
2087 sopbuf2 = ch_calloc( 1, size );
2088 op2 = &sopbuf2->sob_op;
2089 op2->o_hdr = &sopbuf2->sob_hdr;
2090 LDAP_SLIST_FIRST(&op2->o_extra) = &sopbuf2->sob_oe;
2092 /* Copy the fields we care about explicitly, leave the rest alone */
2093 *op2->o_hdr = *op->o_hdr;
2094 op2->o_tag = op->o_tag;
2095 op2->o_time = op->o_time;
2096 op2->o_bd = on->on_info->oi_origdb;
2097 op2->o_request = op->o_request;
2098 op2->o_managedsait = op->o_managedsait;
2099 LDAP_SLIST_FIRST(&op2->o_extra)->oe_key = on;
2100 LDAP_SLIST_NEXT(LDAP_SLIST_FIRST(&op2->o_extra), oe_next) = NULL;
2102 ptr = (char *) sopbuf2 + offsetof( SyncOperationBuffer, sob_extra );
2104 op2->ors_attrs = (AttributeName *) ptr;
2105 ptr = (char *) &op2->ors_attrs[i+1];
2106 for (i=0; !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2107 op2->ors_attrs[i] = op->ors_attrs[i];
2108 op2->ors_attrs[i].an_name.bv_val = ptr;
2109 ptr = lutil_strcopy( ptr, op->ors_attrs[i].an_name.bv_val ) + 1;
2111 BER_BVZERO( &op2->ors_attrs[i].an_name );
2114 op2->o_authz = op->o_authz;
2115 op2->o_ndn.bv_val = ptr;
2116 ptr = lutil_strcopy(ptr, op->o_ndn.bv_val) + 1;
2117 op2->o_dn = op2->o_ndn;
2118 op2->o_req_dn.bv_len = op->o_req_dn.bv_len;
2119 op2->o_req_dn.bv_val = ptr;
2120 ptr = lutil_strcopy(ptr, op->o_req_dn.bv_val) + 1;
2121 op2->o_req_ndn.bv_len = op->o_req_ndn.bv_len;
2122 op2->o_req_ndn.bv_val = ptr;
2123 ptr = lutil_strcopy(ptr, op->o_req_ndn.bv_val) + 1;
2124 op2->ors_filterstr.bv_val = ptr;
2125 strcpy( ptr, so->s_filterstr.bv_val );
2126 op2->ors_filterstr.bv_len = so->s_filterstr.bv_len;
2128 /* Skip the AND/GE clause that we stuck on in front */
2129 if ( so->s_flags & PS_FIX_FILTER ) {
2130 op2->ors_filter = op->ors_filter->f_and->f_next;
2131 so->s_flags ^= PS_FIX_FILTER;
2133 op2->ors_filter = op->ors_filter;
2135 op2->ors_filter = filter_dup( op2->ors_filter, NULL );
2138 /* Copy any cached group ACLs individually */
2139 op2->o_groups = NULL;
2140 for ( g1=op->o_groups; g1; g1=g1->ga_next ) {
2141 g2 = ch_malloc( sizeof(GroupAssertion) + g1->ga_len );
2143 strcpy( g2->ga_ndn, g1->ga_ndn );
2144 g2->ga_next = op2->o_groups;
2147 /* Don't allow any further group caching */
2148 op2->o_do_not_cache = 1;
2150 /* Add op2 to conn so abandon will find us */
2151 op->o_conn->c_n_ops_executing++;
2152 op->o_conn->c_n_ops_completed--;
2153 LDAP_STAILQ_INSERT_TAIL( &op->o_conn->c_ops, op2, o_next );
2154 so->s_flags |= PS_IS_DETACHED;
2156 /* Prevent anyone else from trying to send a result for this op */
2161 syncprov_search_response( Operation *op, SlapReply *rs )
2163 searchstate *ss = op->o_callback->sc_private;
2164 slap_overinst *on = ss->ss_on;
2165 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2166 sync_control *srs = op->o_controls[slap_cids.sc_LDAPsync];
2168 if ( rs->sr_type == REP_SEARCH || rs->sr_type == REP_SEARCHREF ) {
2170 /* If we got a referral without a referral object, there's
2171 * something missing that we cannot replicate. Just ignore it.
2172 * The consumer will abort because we didn't send the expected
2175 if ( !rs->sr_entry ) {
2176 assert( rs->sr_entry != NULL );
2177 Debug( LDAP_DEBUG_ANY, "bogus referral in context\n",0,0,0 );
2178 return SLAP_CB_CONTINUE;
2180 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryCSN );
2181 if ( a == NULL && rs->sr_operational_attrs != NULL ) {
2182 a = attr_find( rs->sr_operational_attrs, slap_schema.si_ad_entryCSN );
2186 sid = slap_parse_csn_sid( &a->a_nvals[0] );
2188 /* Don't send changed entries back to the originator */
2189 if ( sid == srs->sr_state.sid && srs->sr_state.numcsns ) {
2190 Debug( LDAP_DEBUG_SYNC,
2191 "Entry %s changed by peer, ignored\n",
2192 rs->sr_entry->e_name.bv_val, 0, 0 );
2193 return LDAP_SUCCESS;
2196 /* If not a persistent search */
2198 /* Make sure entry is less than the snapshot'd contextCSN */
2199 for ( i=0; i<ss->ss_numcsns; i++ ) {
2200 if ( sid == ss->ss_sids[i] && ber_bvcmp( &a->a_nvals[0],
2201 &ss->ss_ctxcsn[i] ) > 0 ) {
2202 Debug( LDAP_DEBUG_SYNC,
2203 "Entry %s CSN %s greater than snapshot %s\n",
2204 rs->sr_entry->e_name.bv_val,
2205 a->a_nvals[0].bv_val,
2206 ss->ss_ctxcsn[i].bv_val );
2207 return LDAP_SUCCESS;
2212 /* Don't send old entries twice */
2213 if ( srs->sr_state.ctxcsn ) {
2214 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2215 if ( sid == srs->sr_state.sids[i] &&
2216 ber_bvcmp( &a->a_nvals[0],
2217 &srs->sr_state.ctxcsn[i] )<= 0 ) {
2218 Debug( LDAP_DEBUG_SYNC,
2219 "Entry %s CSN %s older or equal to ctx %s\n",
2220 rs->sr_entry->e_name.bv_val,
2221 a->a_nvals[0].bv_val,
2222 srs->sr_state.ctxcsn[i].bv_val );
2223 return LDAP_SUCCESS;
2228 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2230 rs->sr_ctrls[1] = NULL;
2231 /* If we're in delta-sync mode, always send a cookie */
2232 if ( si->si_nopres && si->si_usehint && a ) {
2233 struct berval cookie;
2234 slap_compose_sync_cookie( op, &cookie, a->a_nvals, srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
2235 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2236 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 1, &cookie );
2238 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2239 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 0, NULL );
2241 } else if ( rs->sr_type == REP_RESULT && rs->sr_err == LDAP_SUCCESS ) {
2242 struct berval cookie = BER_BVNULL;
2244 if ( ( ss->ss_flags & SS_CHANGED ) &&
2245 ss->ss_ctxcsn && !BER_BVISNULL( &ss->ss_ctxcsn[0] )) {
2246 slap_compose_sync_cookie( op, &cookie, ss->ss_ctxcsn,
2247 srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
2249 Debug( LDAP_DEBUG_SYNC, "syncprov_search_response: cookie=%s\n", cookie.bv_val, 0, 0 );
2252 /* Is this a regular refresh?
2253 * Note: refresh never gets here if there were no changes
2256 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2258 rs->sr_ctrls[1] = NULL;
2259 rs->sr_err = syncprov_done_ctrl( op, rs, rs->sr_ctrls,
2260 0, 1, &cookie, ( ss->ss_flags & SS_PRESENT ) ? LDAP_SYNC_REFRESH_PRESENTS :
2261 LDAP_SYNC_REFRESH_DELETES );
2262 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2264 /* It's RefreshAndPersist, transition to Persist phase */
2265 syncprov_sendinfo( op, rs, ( ss->ss_flags & SS_PRESENT ) ?
2266 LDAP_TAG_SYNC_REFRESH_PRESENT : LDAP_TAG_SYNC_REFRESH_DELETE,
2267 ( ss->ss_flags & SS_CHANGED ) ? &cookie : NULL,
2269 if ( !BER_BVISNULL( &cookie ))
2270 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2272 /* Detach this Op from frontend control */
2273 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
2275 /* But not if this connection was closed along the way */
2276 if ( op->o_abandon ) {
2277 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2278 /* syncprov_ab_cleanup will free this syncop */
2279 return SLAPD_ABANDON;
2282 ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex );
2283 /* Turn off the refreshing flag */
2284 ss->ss_so->s_flags ^= PS_IS_REFRESHING;
2286 syncprov_detach_op( op, ss->ss_so, on );
2288 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2290 /* If there are queued responses, fire them off */
2291 if ( ss->ss_so->s_res )
2292 syncprov_qstart( ss->ss_so );
2293 ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
2296 return LDAP_SUCCESS;
2300 return SLAP_CB_CONTINUE;
2304 syncprov_op_search( Operation *op, SlapReply *rs )
2306 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2307 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2309 int gotstate = 0, changed = 0, do_present = 0;
2310 syncops *sop = NULL;
2314 int i, *sids, numcsns;
2315 struct berval mincsn;
2317 if ( !(op->o_sync_mode & SLAP_SYNC_REFRESH) ) return SLAP_CB_CONTINUE;
2319 if ( op->ors_deref & LDAP_DEREF_SEARCHING ) {
2320 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR, "illegal value for derefAliases" );
2324 srs = op->o_controls[slap_cids.sc_LDAPsync];
2326 /* If this is a persistent search, set it up right away */
2327 if ( op->o_sync_mode & SLAP_SYNC_PERSIST ) {
2337 so.s_flags = PS_IS_REFRESHING | PS_FIND_BASE;
2338 /* syncprov_findbase expects to be called as a callback... */
2339 sc.sc_private = &opc;
2341 ldap_pvt_thread_mutex_init( &so.s_mutex );
2342 cb = op->o_callback;
2343 op->o_callback = ≻
2344 rs->sr_err = syncprov_findbase( op, &fc );
2345 op->o_callback = cb;
2346 ldap_pvt_thread_mutex_destroy( &so.s_mutex );
2348 if ( rs->sr_err != LDAP_SUCCESS ) {
2349 send_ldap_result( op, rs );
2352 sop = ch_malloc( sizeof( syncops ));
2354 ldap_pvt_thread_mutex_init( &sop->s_mutex );
2355 sop->s_rid = srs->sr_state.rid;
2356 sop->s_sid = srs->sr_state.sid;
2359 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2360 sop->s_next = si->si_ops;
2362 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2365 /* snapshot the ctxcsn */
2366 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2367 numcsns = si->si_numcsns;
2369 ber_bvarray_dup_x( &ctxcsn, si->si_ctxcsn, op->o_tmpmemctx );
2370 sids = op->o_tmpalloc( numcsns * sizeof(int), op->o_tmpmemctx );
2371 for ( i=0; i<numcsns; i++ )
2372 sids[i] = si->si_sids[i];
2377 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2379 /* If we have a cookie, handle the PRESENT lookups */
2380 if ( srs->sr_state.ctxcsn ) {
2384 /* If we don't have any CSN of our own yet, pretend nothing
2390 if ( !si->si_nopres )
2391 do_present = SS_PRESENT;
2393 /* If there are SIDs we don't recognize in the cookie, drop them */
2394 for (i=0; i<srs->sr_state.numcsns; ) {
2395 for (j=0; j<numcsns; j++) {
2396 if ( srs->sr_state.sids[i] == sids[j] ) {
2401 if ( j == numcsns ) {
2402 struct berval tmp = srs->sr_state.ctxcsn[i];
2403 j = srs->sr_state.numcsns - 1;
2404 srs->sr_state.ctxcsn[i] = srs->sr_state.ctxcsn[j];
2406 srs->sr_state.ctxcsn[j] = tmp;
2407 srs->sr_state.numcsns = j;
2408 srs->sr_state.sids[i] = srs->sr_state.sids[j];
2414 /* Find the smallest CSN */
2415 mincsn = srs->sr_state.ctxcsn[0];
2416 for ( i=1; i<srs->sr_state.numcsns; i++ ) {
2417 if ( ber_bvcmp( &mincsn, &srs->sr_state.ctxcsn[i] ) > 0 )
2418 mincsn = srs->sr_state.ctxcsn[i];
2421 /* If nothing has changed, shortcut it */
2422 if ( srs->sr_state.numcsns == numcsns ) {
2424 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2425 for ( j=0; j<numcsns; j++ ) {
2426 if ( srs->sr_state.sids[i] != sids[j] )
2428 newer = ber_bvcmp( &srs->sr_state.ctxcsn[i], &ctxcsn[j] );
2429 /* If our state is newer, tell consumer about changes */
2431 changed = SS_CHANGED;
2432 else if ( newer > 0 ) {
2433 /* our state is older, tell consumer nothing */
2435 syncops **sp = &si->si_ops;
2437 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2438 while ( *sp != sop )
2439 sp = &(*sp)->s_next;
2441 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2444 rs->sr_err = LDAP_SUCCESS;
2445 rs->sr_ctrls = NULL;
2446 send_ldap_result( op, rs );
2456 no_change: if ( !(op->o_sync_mode & SLAP_SYNC_PERSIST) ) {
2457 LDAPControl *ctrls[2];
2461 syncprov_done_ctrl( op, rs, ctrls, 0, 0,
2462 NULL, LDAP_SYNC_REFRESH_DELETES );
2463 rs->sr_ctrls = ctrls;
2464 rs->sr_err = LDAP_SUCCESS;
2465 send_ldap_result( op, rs );
2466 rs->sr_ctrls = NULL;
2472 /* consumer doesn't have the right number of CSNs */
2473 changed = SS_CHANGED;
2475 /* Do we have a sessionlog for this search? */
2478 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
2479 /* Are there any log entries, and is the consumer state
2480 * present in the session log?
2482 if ( sl->sl_num > 0 && ber_bvcmp( &mincsn, &sl->sl_mincsn ) >= 0 ) {
2484 /* mutex is unlocked in playlog */
2485 syncprov_playlog( op, rs, sl, srs, ctxcsn, numcsns, sids );
2487 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
2490 /* Is the CSN still present in the database? */
2491 if ( syncprov_findcsn( op, FIND_CSN ) != LDAP_SUCCESS ) {
2492 /* No, so a reload is required */
2493 /* the 2.2 consumer doesn't send this hint */
2494 if ( si->si_usehint && srs->sr_rhint == 0 ) {
2496 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2498 op->o_tmpfree( sids, op->o_tmpmemctx );
2499 send_ldap_error( op, rs, LDAP_SYNC_REFRESH_REQUIRED, "sync cookie is stale" );
2502 if ( srs->sr_state.ctxcsn ) {
2503 ber_bvarray_free_x( srs->sr_state.ctxcsn, op->o_tmpmemctx );
2504 srs->sr_state.ctxcsn = NULL;
2506 if ( srs->sr_state.sids ) {
2507 slap_sl_free( srs->sr_state.sids, op->o_tmpmemctx );
2508 srs->sr_state.sids = NULL;
2510 srs->sr_state.numcsns = 0;
2513 /* If changed and doing Present lookup, send Present UUIDs */
2514 if ( do_present && syncprov_findcsn( op, FIND_PRESENT ) !=
2517 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2519 op->o_tmpfree( sids, op->o_tmpmemctx );
2520 send_ldap_result( op, rs );
2525 /* No consumer state, assume something has changed */
2526 changed = SS_CHANGED;
2530 /* Append CSN range to search filter, save original filter
2531 * for persistent search evaluation
2534 sop->s_filterstr= op->ors_filterstr;
2537 /* If something changed, find the changes */
2538 if ( gotstate && changed ) {
2539 Filter *fand, *fava;
2541 fand = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2542 fand->f_choice = LDAP_FILTER_AND;
2543 fand->f_next = NULL;
2544 fava = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2546 fava->f_choice = LDAP_FILTER_GE;
2547 fava->f_ava = op->o_tmpalloc( sizeof(AttributeAssertion), op->o_tmpmemctx );
2548 fava->f_ava->aa_desc = slap_schema.si_ad_entryCSN;
2549 #ifdef LDAP_COMP_MATCH
2550 fava->f_ava->aa_cf = NULL;
2552 ber_dupbv_x( &fava->f_ava->aa_value, &mincsn, op->o_tmpmemctx );
2553 fava->f_next = op->ors_filter;
2554 op->ors_filter = fand;
2555 filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2557 sop->s_flags |= PS_FIX_FILTER;
2560 /* Let our callback add needed info to returned entries */
2561 cb = op->o_tmpcalloc(1, sizeof(slap_callback)+sizeof(searchstate), op->o_tmpmemctx);
2562 ss = (searchstate *)(cb+1);
2565 ss->ss_flags = do_present | changed;
2566 ss->ss_ctxcsn = ctxcsn;
2567 ss->ss_numcsns = numcsns;
2569 cb->sc_response = syncprov_search_response;
2570 cb->sc_cleanup = syncprov_search_cleanup;
2571 cb->sc_private = ss;
2572 cb->sc_next = op->o_callback;
2573 op->o_callback = cb;
2575 /* If this is a persistent search and no changes were reported during
2576 * the refresh phase, just invoke the response callback to transition
2577 * us into persist phase
2580 rs->sr_err = LDAP_SUCCESS;
2581 rs->sr_nentries = 0;
2582 send_ldap_result( op, rs );
2585 return SLAP_CB_CONTINUE;
2589 syncprov_operational(
2593 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2594 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2596 /* This prevents generating unnecessarily; frontend will strip
2597 * any statically stored copy.
2599 if ( op->o_sync != SLAP_CONTROL_NONE )
2600 return SLAP_CB_CONTINUE;
2602 if ( rs->sr_entry &&
2603 dn_match( &rs->sr_entry->e_nname, &si->si_contextdn )) {
2605 if ( SLAP_OPATTRS( rs->sr_attr_flags ) ||
2606 ad_inlist( slap_schema.si_ad_contextCSN, rs->sr_attrs )) {
2607 Attribute *a, **ap = NULL;
2609 for ( a=rs->sr_entry->e_attrs; a; a=a->a_next ) {
2610 if ( a->a_desc == slap_schema.si_ad_contextCSN )
2614 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2615 if ( si->si_ctxcsn ) {
2617 for ( ap = &rs->sr_operational_attrs; *ap;
2618 ap=&(*ap)->a_next );
2620 a = attr_alloc( slap_schema.si_ad_contextCSN );
2625 if ( !(rs->sr_flags & REP_ENTRY_MODIFIABLE) ) {
2626 Entry *e = entry_dup( rs->sr_entry );
2627 if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
2628 overlay_entry_release_ov( op, rs->sr_entry, 0, on );
2629 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
2630 } else if ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) {
2631 entry_free( rs->sr_entry );
2635 REP_ENTRY_MODIFIABLE|REP_ENTRY_MUSTBEFREED;
2636 a = attr_find( rs->sr_entry->e_attrs,
2637 slap_schema.si_ad_contextCSN );
2639 if ( a->a_nvals != a->a_vals ) {
2640 ber_bvarray_free( a->a_nvals );
2643 ber_bvarray_free( a->a_vals );
2647 attr_valadd( a, si->si_ctxcsn, si->si_ctxcsn, si->si_numcsns );
2649 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2652 return SLAP_CB_CONTINUE;
2662 static ConfigDriver sp_cf_gen;
2664 static ConfigTable spcfg[] = {
2665 { "syncprov-checkpoint", "ops> <minutes", 3, 3, 0, ARG_MAGIC|SP_CHKPT,
2666 sp_cf_gen, "( OLcfgOvAt:1.1 NAME 'olcSpCheckpoint' "
2667 "DESC 'ContextCSN checkpoint interval in ops and minutes' "
2668 "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
2669 { "syncprov-sessionlog", "ops", 2, 2, 0, ARG_INT|ARG_MAGIC|SP_SESSL,
2670 sp_cf_gen, "( OLcfgOvAt:1.2 NAME 'olcSpSessionlog' "
2671 "DESC 'Session log size in ops' "
2672 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
2673 { "syncprov-nopresent", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_NOPRES,
2674 sp_cf_gen, "( OLcfgOvAt:1.3 NAME 'olcSpNoPresent' "
2675 "DESC 'Omit Present phase processing' "
2676 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2677 { "syncprov-reloadhint", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_USEHINT,
2678 sp_cf_gen, "( OLcfgOvAt:1.4 NAME 'olcSpReloadHint' "
2679 "DESC 'Observe Reload Hint in Request control' "
2680 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2681 { NULL, NULL, 0, 0, 0, ARG_IGNORED }
2684 static ConfigOCs spocs[] = {
2685 { "( OLcfgOvOc:1.1 "
2686 "NAME 'olcSyncProvConfig' "
2687 "DESC 'SyncRepl Provider configuration' "
2688 "SUP olcOverlayConfig "
2689 "MAY ( olcSpCheckpoint "
2690 "$ olcSpSessionlog "
2692 "$ olcSpReloadHint "
2694 Cft_Overlay, spcfg },
2699 sp_cf_gen(ConfigArgs *c)
2701 slap_overinst *on = (slap_overinst *)c->bi;
2702 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2705 if ( c->op == SLAP_CONFIG_EMIT ) {
2706 switch ( c->type ) {
2708 if ( si->si_chkops || si->si_chktime ) {
2710 /* we assume si_chktime is a multiple of 60
2711 * because the parsed value was originally
2712 * multiplied by 60 */
2713 bv.bv_len = snprintf( c->cr_msg, sizeof( c->cr_msg ),
2714 "%d %d", si->si_chkops, si->si_chktime/60 );
2715 if ( bv.bv_len >= sizeof( c->cr_msg ) ) {
2718 bv.bv_val = c->cr_msg;
2719 value_add_one( &c->rvalue_vals, &bv );
2726 if ( si->si_logs ) {
2727 c->value_int = si->si_logs->sl_size;
2733 if ( si->si_nopres ) {
2740 if ( si->si_usehint ) {
2748 } else if ( c->op == LDAP_MOD_DELETE ) {
2749 switch ( c->type ) {
2756 si->si_logs->sl_size = 0;
2758 rc = LDAP_NO_SUCH_ATTRIBUTE;
2761 if ( si->si_nopres )
2764 rc = LDAP_NO_SUCH_ATTRIBUTE;
2767 if ( si->si_usehint )
2770 rc = LDAP_NO_SUCH_ATTRIBUTE;
2775 switch ( c->type ) {
2777 if ( lutil_atoi( &si->si_chkops, c->argv[1] ) != 0 ) {
2778 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint ops # \"%s\"",
2779 c->argv[0], c->argv[1] );
2780 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2781 "%s: %s\n", c->log, c->cr_msg, 0 );
2782 return ARG_BAD_CONF;
2784 if ( si->si_chkops <= 0 ) {
2785 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint ops # \"%d\"",
2786 c->argv[0], si->si_chkops );
2787 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2788 "%s: %s\n", c->log, c->cr_msg, 0 );
2789 return ARG_BAD_CONF;
2791 if ( lutil_atoi( &si->si_chktime, c->argv[2] ) != 0 ) {
2792 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint time \"%s\"",
2793 c->argv[0], c->argv[1] );
2794 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2795 "%s: %s\n", c->log, c->cr_msg, 0 );
2796 return ARG_BAD_CONF;
2798 if ( si->si_chktime <= 0 ) {
2799 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint time \"%d\"",
2800 c->argv[0], si->si_chkops );
2801 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2802 "%s: %s\n", c->log, c->cr_msg, 0 );
2803 return ARG_BAD_CONF;
2805 si->si_chktime *= 60;
2809 int size = c->value_int;
2812 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s size %d is negative",
2814 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2815 "%s: %s\n", c->log, c->cr_msg, 0 );
2816 return ARG_BAD_CONF;
2820 sl = ch_malloc( sizeof( sessionlog ) + LDAP_LUTIL_CSNSTR_BUFSIZE );
2821 sl->sl_mincsn.bv_val = (char *)(sl+1);
2822 sl->sl_mincsn.bv_len = 0;
2824 sl->sl_head = sl->sl_tail = NULL;
2825 ldap_pvt_thread_mutex_init( &sl->sl_mutex );
2832 si->si_nopres = c->value_int;
2835 si->si_usehint = c->value_int;
2841 /* ITS#3456 we cannot run this search on the main thread, must use a
2842 * child thread in order to insure we have a big enough stack.
2849 syncprov_findcsn( ptr, FIND_MAXCSN );
2853 /* Read any existing contextCSN from the underlying db.
2854 * Then search for any entries newer than that. If no value exists,
2855 * just generate it. Cache whatever result.
2863 slap_overinst *on = (slap_overinst *) be->bd_info;
2864 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2866 Connection conn = { 0 };
2867 OperationBuffer opbuf;
2872 void *thrctx = NULL;
2874 if ( !SLAP_LASTMOD( be )) {
2875 Debug( LDAP_DEBUG_ANY,
2876 "syncprov_db_open: invalid config, lastmod must be enabled\n", 0, 0, 0 );
2880 if ( slapMode & SLAP_TOOL_MODE ) {
2884 rc = overlay_register_control( be, LDAP_CONTROL_SYNC );
2889 thrctx = ldap_pvt_thread_pool_context();
2890 connection_fake_init2( &conn, &opbuf, thrctx, 0 );
2893 op->o_dn = be->be_rootdn;
2894 op->o_ndn = be->be_rootndn;
2896 if ( SLAP_SYNC_SUBENTRY( be )) {
2897 build_new_dn( &si->si_contextdn, be->be_nsuffix,
2898 (struct berval *)&slap_ldapsync_cn_bv, NULL );
2900 si->si_contextdn = be->be_nsuffix[0];
2902 rc = overlay_entry_get_ov( op, &si->si_contextdn, NULL,
2903 slap_schema.si_ad_contextCSN, 0, &e, on );
2906 ldap_pvt_thread_t tid;
2908 a = attr_find( e->e_attrs, slap_schema.si_ad_contextCSN );
2910 ber_bvarray_dup_x( &si->si_ctxcsn, a->a_vals, NULL );
2911 si->si_numcsns = a->a_numvals;
2912 si->si_sids = slap_parse_csn_sids( si->si_ctxcsn, a->a_numvals, NULL );
2914 overlay_entry_release_ov( op, e, 0, on );
2915 if ( si->si_ctxcsn && !SLAP_DBCLEAN( be )) {
2916 op->o_req_dn = be->be_suffix[0];
2917 op->o_req_ndn = be->be_nsuffix[0];
2918 op->ors_scope = LDAP_SCOPE_SUBTREE;
2919 ldap_pvt_thread_create( &tid, 0, syncprov_db_otask, op );
2920 ldap_pvt_thread_join( tid, NULL );
2924 /* Didn't find a contextCSN, should we generate one? */
2925 if ( !si->si_ctxcsn ) {
2926 char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
2929 if ( SLAP_SYNC_SHADOW( op->o_bd )) {
2930 /* If we're also a consumer, then don't generate anything.
2931 * Wait for our provider to send it to us, or for a local
2932 * modify if we have multimaster.
2936 csn.bv_val = csnbuf;
2937 csn.bv_len = sizeof( csnbuf );
2938 slap_get_csn( op, &csn, 0 );
2939 value_add_one( &si->si_ctxcsn, &csn );
2941 si->si_sids = ch_malloc( sizeof(int) );
2942 si->si_sids[0] = slap_serverID;
2944 /* make sure we do a checkpoint on close */
2949 op->o_bd->bd_info = (BackendInfo *)on;
2953 /* Write the current contextCSN into the underlying db.
2961 slap_overinst *on = (slap_overinst *) be->bd_info;
2962 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2964 if ( slapMode & SLAP_TOOL_MODE ) {
2967 if ( si->si_numops ) {
2968 Connection conn = {0};
2969 OperationBuffer opbuf;
2971 SlapReply rs = {REP_RESULT};
2974 thrctx = ldap_pvt_thread_pool_context();
2975 connection_fake_init2( &conn, &opbuf, thrctx, 0 );
2978 op->o_dn = be->be_rootdn;
2979 op->o_ndn = be->be_rootndn;
2980 syncprov_checkpoint( op, &rs, on );
2992 slap_overinst *on = (slap_overinst *)be->bd_info;
2993 syncprov_info_t *si;
2995 if ( SLAP_ISGLOBALOVERLAY( be ) ) {
2996 Debug( LDAP_DEBUG_ANY,
2997 "syncprov must be instantiated within a database.\n",
3002 si = ch_calloc(1, sizeof(syncprov_info_t));
3003 on->on_bi.bi_private = si;
3004 ldap_pvt_thread_rdwr_init( &si->si_csn_rwlock );
3005 ldap_pvt_thread_mutex_init( &si->si_ops_mutex );
3006 ldap_pvt_thread_mutex_init( &si->si_mods_mutex );
3007 ldap_pvt_thread_mutex_init( &si->si_resp_mutex );
3009 csn_anlist[0].an_desc = slap_schema.si_ad_entryCSN;
3010 csn_anlist[0].an_name = slap_schema.si_ad_entryCSN->ad_cname;
3011 csn_anlist[1].an_desc = slap_schema.si_ad_entryUUID;
3012 csn_anlist[1].an_name = slap_schema.si_ad_entryUUID->ad_cname;
3014 uuid_anlist[0].an_desc = slap_schema.si_ad_entryUUID;
3015 uuid_anlist[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
3021 syncprov_db_destroy(
3026 slap_overinst *on = (slap_overinst *)be->bd_info;
3027 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3030 if ( si->si_logs ) {
3031 slog_entry *se = si->si_logs->sl_head;
3034 slog_entry *se_next = se->se_next;
3039 ch_free( si->si_logs );
3041 if ( si->si_ctxcsn )
3042 ber_bvarray_free( si->si_ctxcsn );
3044 ch_free( si->si_sids );
3045 ldap_pvt_thread_mutex_destroy( &si->si_resp_mutex );
3046 ldap_pvt_thread_mutex_destroy( &si->si_mods_mutex );
3047 ldap_pvt_thread_mutex_destroy( &si->si_ops_mutex );
3048 ldap_pvt_thread_rdwr_destroy( &si->si_csn_rwlock );
3055 static int syncprov_parseCtrl (
3061 BerElementBuffer berbuf;
3062 BerElement *ber = (BerElement *)&berbuf;
3065 struct berval cookie = BER_BVNULL;
3069 if ( op->o_sync != SLAP_CONTROL_NONE ) {
3070 rs->sr_text = "Sync control specified multiple times";
3071 return LDAP_PROTOCOL_ERROR;
3074 if ( op->o_pagedresults != SLAP_CONTROL_NONE ) {
3075 rs->sr_text = "Sync control specified with pagedResults control";
3076 return LDAP_PROTOCOL_ERROR;
3079 if ( BER_BVISNULL( &ctrl->ldctl_value ) ) {
3080 rs->sr_text = "Sync control value is absent";
3081 return LDAP_PROTOCOL_ERROR;
3084 if ( BER_BVISEMPTY( &ctrl->ldctl_value ) ) {
3085 rs->sr_text = "Sync control value is empty";
3086 return LDAP_PROTOCOL_ERROR;
3089 /* Parse the control value
3090 * syncRequestValue ::= SEQUENCE {
3095 * refreshAndPersist (3)
3097 * cookie syncCookie OPTIONAL
3101 ber_init2( ber, &ctrl->ldctl_value, 0 );
3103 if ( (tag = ber_scanf( ber, "{i" /*}*/, &mode )) == LBER_ERROR ) {
3104 rs->sr_text = "Sync control : mode decoding error";
3105 return LDAP_PROTOCOL_ERROR;
3109 case LDAP_SYNC_REFRESH_ONLY:
3110 mode = SLAP_SYNC_REFRESH;
3112 case LDAP_SYNC_REFRESH_AND_PERSIST:
3113 mode = SLAP_SYNC_REFRESH_AND_PERSIST;
3116 rs->sr_text = "Sync control : unknown update mode";
3117 return LDAP_PROTOCOL_ERROR;
3120 tag = ber_peek_tag( ber, &len );
3122 if ( tag == LDAP_TAG_SYNC_COOKIE ) {
3123 if (( ber_scanf( ber, /*{*/ "m", &cookie )) == LBER_ERROR ) {
3124 rs->sr_text = "Sync control : cookie decoding error";
3125 return LDAP_PROTOCOL_ERROR;
3127 tag = ber_peek_tag( ber, &len );
3129 if ( tag == LDAP_TAG_RELOAD_HINT ) {
3130 if (( ber_scanf( ber, /*{*/ "b", &rhint )) == LBER_ERROR ) {
3131 rs->sr_text = "Sync control : rhint decoding error";
3132 return LDAP_PROTOCOL_ERROR;
3135 if (( ber_scanf( ber, /*{*/ "}")) == LBER_ERROR ) {
3136 rs->sr_text = "Sync control : decoding error";
3137 return LDAP_PROTOCOL_ERROR;
3139 sr = op->o_tmpcalloc( 1, sizeof(struct sync_control), op->o_tmpmemctx );
3140 sr->sr_rhint = rhint;
3141 if (!BER_BVISNULL(&cookie)) {
3142 ber_dupbv_x( &sr->sr_state.octet_str, &cookie, op->o_tmpmemctx );
3143 /* If parse fails, pretend no cookie was sent */
3144 if ( slap_parse_sync_cookie( &sr->sr_state, op->o_tmpmemctx ) ||
3145 sr->sr_state.rid == -1 ) {
3146 if ( sr->sr_state.ctxcsn ) {
3147 ber_bvarray_free_x( sr->sr_state.ctxcsn, op->o_tmpmemctx );
3148 sr->sr_state.ctxcsn = NULL;
3150 sr->sr_state.numcsns = 0;
3154 op->o_controls[slap_cids.sc_LDAPsync] = sr;
3156 op->o_sync = ctrl->ldctl_iscritical
3157 ? SLAP_CONTROL_CRITICAL
3158 : SLAP_CONTROL_NONCRITICAL;
3160 op->o_sync_mode |= mode; /* o_sync_mode shares o_sync */
3162 return LDAP_SUCCESS;
3165 /* This overlay is set up for dynamic loading via moduleload. For static
3166 * configuration, you'll need to arrange for the slap_overinst to be
3167 * initialized and registered by some other function inside slapd.
3170 static slap_overinst syncprov;
3173 syncprov_initialize()
3177 rc = register_supported_control( LDAP_CONTROL_SYNC,
3178 SLAP_CTRL_SEARCH, NULL,
3179 syncprov_parseCtrl, &slap_cids.sc_LDAPsync );
3180 if ( rc != LDAP_SUCCESS ) {
3181 Debug( LDAP_DEBUG_ANY,
3182 "syncprov_init: Failed to register control %d\n", rc, 0, 0 );
3186 syncprov.on_bi.bi_type = "syncprov";
3187 syncprov.on_bi.bi_db_init = syncprov_db_init;
3188 syncprov.on_bi.bi_db_destroy = syncprov_db_destroy;
3189 syncprov.on_bi.bi_db_open = syncprov_db_open;
3190 syncprov.on_bi.bi_db_close = syncprov_db_close;
3192 syncprov.on_bi.bi_op_abandon = syncprov_op_abandon;
3193 syncprov.on_bi.bi_op_cancel = syncprov_op_abandon;
3195 syncprov.on_bi.bi_op_add = syncprov_op_mod;
3196 syncprov.on_bi.bi_op_compare = syncprov_op_compare;
3197 syncprov.on_bi.bi_op_delete = syncprov_op_mod;
3198 syncprov.on_bi.bi_op_modify = syncprov_op_mod;
3199 syncprov.on_bi.bi_op_modrdn = syncprov_op_mod;
3200 syncprov.on_bi.bi_op_search = syncprov_op_search;
3201 syncprov.on_bi.bi_extended = syncprov_op_extended;
3202 syncprov.on_bi.bi_operational = syncprov_operational;
3204 syncprov.on_bi.bi_cf_ocs = spocs;
3206 generic_filter.f_desc = slap_schema.si_ad_objectClass;
3208 rc = config_register_schema( spcfg, spocs );
3209 if ( rc ) return rc;
3211 return overlay_register( &syncprov );
3214 #if SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC
3216 init_module( int argc, char *argv[] )
3218 return syncprov_initialize();
3220 #endif /* SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC */
3222 #endif /* defined(SLAPD_OVER_SYNCPROV) */