2 /* syncprov.c - syncrepl provider */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2004-2011 The OpenLDAP Foundation.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted only as authorized by the OpenLDAP
12 * A copy of this license is available in the file LICENSE in the
13 * top-level directory of the distribution or, alternatively, at
14 * <http://www.OpenLDAP.org/license.html>.
17 * This work was initially developed by Howard Chu for inclusion in
23 #ifdef SLAPD_OVER_SYNCPROV
25 #include <ac/string.h>
35 /* A modify request on a particular entry */
36 typedef struct modinst {
37 struct modinst *mi_next;
41 typedef struct modtarget {
42 struct modinst *mt_mods;
43 struct modinst *mt_tail;
45 ldap_pvt_thread_mutex_t mt_mutex;
48 /* A queued result of a persistent search */
49 typedef struct syncres {
50 struct syncres *s_next;
60 /* Record of a persistent search */
61 typedef struct syncops {
62 struct syncops *s_next;
63 struct berval s_base; /* ndn of search base */
64 ID s_eid; /* entryID of search base */
65 Operation *s_op; /* search op */
68 struct berval s_filterstr;
69 int s_flags; /* search status */
70 #define PS_IS_REFRESHING 0x01
71 #define PS_IS_DETACHED 0x02
72 #define PS_WROTE_BASE 0x04
73 #define PS_FIND_BASE 0x08
74 #define PS_FIX_FILTER 0x10
75 #define PS_TASK_QUEUED 0x20
77 int s_inuse; /* reference count */
78 struct syncres *s_res;
79 struct syncres *s_restail;
80 ldap_pvt_thread_mutex_t s_mutex;
83 /* A received sync control */
84 typedef struct sync_control {
85 struct sync_cookie sr_state;
89 #if 0 /* moved back to slap.h */
90 #define o_sync o_ctrlflag[slap_cids.sc_LDAPsync]
92 /* o_sync_mode uses data bits of o_sync */
93 #define o_sync_mode o_ctrlflag[slap_cids.sc_LDAPsync]
95 #define SLAP_SYNC_NONE (LDAP_SYNC_NONE<<SLAP_CONTROL_SHIFT)
96 #define SLAP_SYNC_REFRESH (LDAP_SYNC_REFRESH_ONLY<<SLAP_CONTROL_SHIFT)
97 #define SLAP_SYNC_PERSIST (LDAP_SYNC_RESERVED<<SLAP_CONTROL_SHIFT)
98 #define SLAP_SYNC_REFRESH_AND_PERSIST (LDAP_SYNC_REFRESH_AND_PERSIST<<SLAP_CONTROL_SHIFT)
100 /* Record of which searches matched at premodify step */
101 typedef struct syncmatches {
102 struct syncmatches *sm_next;
106 /* Session log data */
107 typedef struct slog_entry {
108 struct slog_entry *se_next;
109 struct berval se_uuid;
110 struct berval se_csn;
115 typedef struct sessionlog {
116 struct berval sl_mincsn;
121 ldap_pvt_thread_mutex_t sl_mutex;
124 /* The main state for this overlay */
125 typedef struct syncprov_info_t {
127 BerVarray si_ctxcsn; /* ldapsync context */
128 struct berval si_contextdn;
131 int si_chkops; /* checkpointing info */
133 int si_numops; /* number of ops since last checkpoint */
134 int si_nopres; /* Skip present phase */
135 int si_usehint; /* use reload hint */
136 int si_active; /* True if there are active mods */
137 int si_dirty; /* True if the context is dirty, i.e changes
138 * have been made without updating the csn. */
139 time_t si_chklast; /* time of last checkpoint */
140 Avlnode *si_mods; /* entries being modified */
142 ldap_pvt_thread_rdwr_t si_csn_rwlock;
143 ldap_pvt_thread_mutex_t si_ops_mutex;
144 ldap_pvt_thread_mutex_t si_mods_mutex;
145 ldap_pvt_thread_mutex_t si_resp_mutex;
148 typedef struct opcookie {
150 syncmatches *smatches;
153 struct berval sdn; /* DN of entry, for deletes */
155 struct berval suuid; /* UUID of entry */
156 struct berval sctxcsn;
157 short osid; /* sid of op csn */
158 short rsid; /* sid of relay */
159 short sreference; /* Is the entry a reference? */
162 typedef struct mutexint {
163 ldap_pvt_thread_mutex_t mi_mutex;
167 typedef struct fbase_cookie {
168 struct berval *fdn; /* DN of a modified entry, for scope testing */
169 syncops *fss; /* persistent search we're testing against */
170 int fbase; /* if TRUE we found the search base and it's still valid */
171 int fscope; /* if TRUE then fdn is within the psearch scope */
174 static AttributeName csn_anlist[3];
175 static AttributeName uuid_anlist[2];
177 /* Build a LDAPsync intermediate state control */
183 int entry_sync_state,
187 struct berval *cookie )
192 BerElementBuffer berbuf;
193 BerElement *ber = (BerElement *)&berbuf;
195 struct berval entryuuid_bv = BER_BVNULL;
197 ber_init2( ber, 0, LBER_USE_DER );
198 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
200 ctrls[num_ctrls] = op->o_tmpalloc( sizeof ( LDAPControl ), op->o_tmpmemctx );
202 for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
203 AttributeDescription *desc = a->a_desc;
204 if ( desc == slap_schema.si_ad_entryUUID ) {
205 entryuuid_bv = a->a_nvals[0];
210 /* FIXME: what if entryuuid is NULL or empty ? */
212 if ( send_cookie && cookie ) {
213 ber_printf( ber, "{eOON}",
214 entry_sync_state, &entryuuid_bv, cookie );
216 ber_printf( ber, "{eON}",
217 entry_sync_state, &entryuuid_bv );
220 ctrls[num_ctrls]->ldctl_oid = LDAP_CONTROL_SYNC_STATE;
221 ctrls[num_ctrls]->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
222 ret = ber_flatten2( ber, &ctrls[num_ctrls]->ldctl_value, 1 );
227 Debug( LDAP_DEBUG_TRACE,
228 "slap_build_sync_ctrl: ber_flatten2 failed\n",
230 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
237 /* Build a LDAPsync final state control */
245 struct berval *cookie,
249 BerElementBuffer berbuf;
250 BerElement *ber = (BerElement *)&berbuf;
252 ber_init2( ber, NULL, LBER_USE_DER );
253 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
255 ctrls[num_ctrls] = op->o_tmpalloc( sizeof ( LDAPControl ), op->o_tmpmemctx );
257 ber_printf( ber, "{" );
258 if ( send_cookie && cookie ) {
259 ber_printf( ber, "O", cookie );
261 if ( refreshDeletes == LDAP_SYNC_REFRESH_DELETES ) {
262 ber_printf( ber, "b", refreshDeletes );
264 ber_printf( ber, "N}" );
266 ctrls[num_ctrls]->ldctl_oid = LDAP_CONTROL_SYNC_DONE;
267 ctrls[num_ctrls]->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
268 ret = ber_flatten2( ber, &ctrls[num_ctrls]->ldctl_value, 1 );
273 Debug( LDAP_DEBUG_TRACE,
274 "syncprov_done_ctrl: ber_flatten2 failed\n",
276 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
288 struct berval *cookie,
293 BerElementBuffer berbuf;
294 BerElement *ber = (BerElement *)&berbuf;
295 struct berval rspdata;
299 ber_init2( ber, NULL, LBER_USE_DER );
300 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
304 case LDAP_TAG_SYNC_NEW_COOKIE:
305 ber_printf( ber, "tO", type, cookie );
307 case LDAP_TAG_SYNC_REFRESH_DELETE:
308 case LDAP_TAG_SYNC_REFRESH_PRESENT:
309 ber_printf( ber, "t{", type );
311 ber_printf( ber, "O", cookie );
313 if ( refreshDone == 0 ) {
314 ber_printf( ber, "b", refreshDone );
316 ber_printf( ber, "N}" );
318 case LDAP_TAG_SYNC_ID_SET:
319 ber_printf( ber, "t{", type );
321 ber_printf( ber, "O", cookie );
323 if ( refreshDeletes == 1 ) {
324 ber_printf( ber, "b", refreshDeletes );
326 ber_printf( ber, "[W]", syncUUIDs );
327 ber_printf( ber, "N}" );
330 Debug( LDAP_DEBUG_TRACE,
331 "syncprov_sendinfo: invalid syncinfo type (%d)\n",
337 ret = ber_flatten2( ber, &rspdata, 0 );
340 Debug( LDAP_DEBUG_TRACE,
341 "syncprov_sendinfo: ber_flatten2 failed\n",
343 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
347 rs->sr_rspoid = LDAP_SYNC_INFO;
348 rs->sr_rspdata = &rspdata;
349 send_ldap_intermediate( op, rs );
350 rs->sr_rspdata = NULL;
356 /* Find a modtarget in an AVL tree */
358 sp_avl_cmp( const void *c1, const void *c2 )
360 const modtarget *m1, *m2;
364 rc = m1->mt_op->o_req_ndn.bv_len - m2->mt_op->o_req_ndn.bv_len;
367 return ber_bvcmp( &m1->mt_op->o_req_ndn, &m2->mt_op->o_req_ndn );
370 /* syncprov_findbase:
371 * finds the true DN of the base of a search (with alias dereferencing) and
372 * checks to make sure the base entry doesn't get replaced with a different
373 * entry (e.g., swapping trees via ModDN, or retargeting an alias). If a
374 * change is detected, any persistent search on this base must be terminated /
376 * On the first call, we just save the DN and entryID. On subsequent calls
377 * we compare the DN and entryID with the saved values.
380 findbase_cb( Operation *op, SlapReply *rs )
382 slap_callback *sc = op->o_callback;
384 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
385 fbase_cookie *fc = sc->sc_private;
387 /* If no entryID, we're looking for the first time.
388 * Just store whatever we got.
390 if ( fc->fss->s_eid == NOID ) {
392 fc->fss->s_eid = rs->sr_entry->e_id;
393 ber_dupbv( &fc->fss->s_base, &rs->sr_entry->e_nname );
395 } else if ( rs->sr_entry->e_id == fc->fss->s_eid &&
396 dn_match( &rs->sr_entry->e_nname, &fc->fss->s_base )) {
398 /* OK, the DN is the same and the entryID is the same. */
402 if ( rs->sr_err != LDAP_SUCCESS ) {
403 Debug( LDAP_DEBUG_ANY, "findbase failed! %d\n", rs->sr_err,0,0 );
408 static Filter generic_filter = { LDAP_FILTER_PRESENT, { 0 }, NULL };
409 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
412 syncprov_findbase( Operation *op, fbase_cookie *fc )
414 /* Use basic parameters from syncrepl search, but use
415 * current op's threadctx / tmpmemctx
417 ldap_pvt_thread_mutex_lock( &fc->fss->s_mutex );
418 if ( fc->fss->s_flags & PS_FIND_BASE ) {
419 slap_callback cb = {0};
421 SlapReply frs = { REP_RESULT };
424 fc->fss->s_flags ^= PS_FIND_BASE;
425 ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
427 fop = *fc->fss->s_op;
429 fop.o_bd = fop.o_bd->bd_self;
430 fop.o_hdr = op->o_hdr;
431 fop.o_time = op->o_time;
432 fop.o_tincr = op->o_tincr;
434 cb.sc_response = findbase_cb;
437 fop.o_sync_mode = 0; /* turn off sync mode */
438 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
439 fop.o_callback = &cb;
440 fop.o_tag = LDAP_REQ_SEARCH;
441 fop.ors_scope = LDAP_SCOPE_BASE;
442 fop.ors_limit = NULL;
444 fop.ors_tlimit = SLAP_NO_LIMIT;
445 fop.ors_attrs = slap_anlist_no_attrs;
446 fop.ors_attrsonly = 1;
447 fop.ors_filter = &generic_filter;
448 fop.ors_filterstr = generic_filterstr;
450 rc = fop.o_bd->be_search( &fop, &frs );
452 ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
456 /* After the first call, see if the fdn resides in the scope */
457 if ( fc->fbase == 1 ) {
458 switch ( fc->fss->s_op->ors_scope ) {
459 case LDAP_SCOPE_BASE:
460 fc->fscope = dn_match( fc->fdn, &fc->fss->s_base );
462 case LDAP_SCOPE_ONELEVEL: {
464 dnParent( fc->fdn, &pdn );
465 fc->fscope = dn_match( &pdn, &fc->fss->s_base );
467 case LDAP_SCOPE_SUBTREE:
468 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base );
470 case LDAP_SCOPE_SUBORDINATE:
471 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base ) &&
472 !dn_match( fc->fdn, &fc->fss->s_base );
480 /* If entryID has changed, then the base of this search has
481 * changed. Invalidate the psearch.
483 return LDAP_NO_SUCH_OBJECT;
487 * This function has three different purposes, but they all use a search
488 * that filters on entryCSN so they're combined here.
489 * 1: at startup time, after a contextCSN has been read from the database,
490 * we search for all entries with CSN >= contextCSN in case the contextCSN
491 * was not checkpointed at the previous shutdown.
493 * 2: when the current contextCSN is known and we have a sync cookie, we search
494 * for one entry with CSN = the cookie CSN. If not found, try <= cookie CSN.
495 * If an entry is found, the cookie CSN is valid, otherwise it is stale.
497 * 3: during a refresh phase, we search for all entries with CSN <= the cookie
498 * CSN, and generate Present records for them. We always collect this result
499 * in SyncID sets, even if there's only one match.
501 typedef enum find_csn_t {
508 findmax_cb( Operation *op, SlapReply *rs )
510 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
511 struct berval *maxcsn = op->o_callback->sc_private;
512 Attribute *a = attr_find( rs->sr_entry->e_attrs,
513 slap_schema.si_ad_entryCSN );
515 if ( a && ber_bvcmp( &a->a_vals[0], maxcsn ) > 0 &&
516 slap_parse_csn_sid( &a->a_vals[0] ) == slap_serverID ) {
517 maxcsn->bv_len = a->a_vals[0].bv_len;
518 strcpy( maxcsn->bv_val, a->a_vals[0].bv_val );
525 findcsn_cb( Operation *op, SlapReply *rs )
527 slap_callback *sc = op->o_callback;
529 /* We just want to know that at least one exists, so it's OK if
530 * we exceed the unchecked limit.
532 if ( rs->sr_err == LDAP_ADMINLIMIT_EXCEEDED ||
533 (rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS )) {
534 sc->sc_private = (void *)1;
539 /* Build a list of entryUUIDs for sending in a SyncID set */
543 typedef struct fpres_cookie {
550 findpres_cb( Operation *op, SlapReply *rs )
552 slap_callback *sc = op->o_callback;
553 fpres_cookie *pc = sc->sc_private;
555 int ret = SLAP_CB_CONTINUE;
557 switch ( rs->sr_type ) {
559 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
561 pc->uuids[pc->num].bv_val = pc->last;
562 AC_MEMCPY( pc->uuids[pc->num].bv_val, a->a_nvals[0].bv_val,
563 pc->uuids[pc->num].bv_len );
565 pc->last = pc->uuids[pc->num].bv_val;
566 pc->uuids[pc->num].bv_val = NULL;
569 if ( pc->num != SLAP_SYNCUUID_SET_SIZE )
575 ret = syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET, NULL,
577 pc->uuids[pc->num].bv_val = pc->last;
579 pc->last = pc->uuids[0].bv_val;
589 syncprov_findcsn( Operation *op, find_csn_t mode )
591 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
592 syncprov_info_t *si = on->on_bi.bi_private;
594 slap_callback cb = {0};
596 SlapReply frs = { REP_RESULT };
597 char buf[LDAP_PVT_CSNSTR_BUFSIZE + STRLENOF("(entryCSN<=)")];
598 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
599 struct berval maxcsn;
601 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
602 fpres_cookie pcookie;
603 sync_control *srs = NULL;
604 struct slap_limits_set fc_limits;
605 int i, rc = LDAP_SUCCESS, findcsn_retry = 1;
608 if ( mode != FIND_MAXCSN ) {
609 srs = op->o_controls[slap_cids.sc_LDAPsync];
613 fop.o_sync_mode &= SLAP_CONTROL_MASK; /* turn off sync_mode */
614 /* We want pure entries, not referrals */
615 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
618 cf.f_av_desc = slap_schema.si_ad_entryCSN;
619 BER_BVZERO( &cf.f_av_value );
622 fop.o_callback = &cb;
623 fop.ors_limit = NULL;
624 fop.ors_tlimit = SLAP_NO_LIMIT;
625 fop.ors_filter = &cf;
626 fop.ors_filterstr.bv_val = buf;
631 cf.f_choice = LDAP_FILTER_GE;
632 /* If there are multiple CSNs, use the one with our serverID */
633 for ( i=0; i<si->si_numcsns; i++) {
634 if ( slap_serverID == si->si_sids[i] ) {
639 if ( i == si->si_numcsns ) {
640 /* No match: this is multimaster, and none of the content in the DB
641 * originated locally. Treat like no CSN.
643 return LDAP_NO_SUCH_OBJECT;
645 cf.f_av_value = si->si_ctxcsn[maxid];
646 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
647 "(entryCSN>=%s)", cf.f_av_value.bv_val );
648 if ( fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
651 fop.ors_attrsonly = 0;
652 fop.ors_attrs = csn_anlist;
653 fop.ors_slimit = SLAP_NO_LIMIT;
654 cb.sc_private = &maxcsn;
655 cb.sc_response = findmax_cb;
656 strcpy( cbuf, cf.f_av_value.bv_val );
657 maxcsn.bv_val = cbuf;
658 maxcsn.bv_len = cf.f_av_value.bv_len;
661 if ( BER_BVISEMPTY( &cf.f_av_value )) {
662 cf.f_av_value = srs->sr_state.ctxcsn[0];
663 /* If there are multiple CSNs, use the smallest */
664 for ( i=1; i<srs->sr_state.numcsns; i++ ) {
665 if ( ber_bvcmp( &cf.f_av_value, &srs->sr_state.ctxcsn[i] )
667 cf.f_av_value = srs->sr_state.ctxcsn[i];
671 /* Look for exact match the first time */
672 if ( findcsn_retry ) {
673 cf.f_choice = LDAP_FILTER_EQUALITY;
674 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
675 "(entryCSN=%s)", cf.f_av_value.bv_val );
676 /* On retry, look for <= */
678 cf.f_choice = LDAP_FILTER_LE;
679 fop.ors_limit = &fc_limits;
680 memset( &fc_limits, 0, sizeof( fc_limits ));
681 fc_limits.lms_s_unchecked = 1;
682 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
683 "(entryCSN<=%s)", cf.f_av_value.bv_val );
685 if ( fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
688 fop.ors_attrsonly = 1;
689 fop.ors_attrs = slap_anlist_no_attrs;
691 cb.sc_private = NULL;
692 cb.sc_response = findcsn_cb;
695 fop.ors_filter = op->ors_filter;
696 fop.ors_filterstr = op->ors_filterstr;
697 fop.ors_attrsonly = 0;
698 fop.ors_attrs = uuid_anlist;
699 fop.ors_slimit = SLAP_NO_LIMIT;
700 cb.sc_private = &pcookie;
701 cb.sc_response = findpres_cb;
704 /* preallocate storage for a full set */
705 pcookie.uuids = op->o_tmpalloc( (SLAP_SYNCUUID_SET_SIZE+1) *
706 sizeof(struct berval) + SLAP_SYNCUUID_SET_SIZE * UUID_LEN,
708 pcookie.last = (char *)(pcookie.uuids + SLAP_SYNCUUID_SET_SIZE+1);
709 pcookie.uuids[0].bv_val = pcookie.last;
710 pcookie.uuids[0].bv_len = UUID_LEN;
711 for (i=1; i<SLAP_SYNCUUID_SET_SIZE; i++) {
712 pcookie.uuids[i].bv_val = pcookie.uuids[i-1].bv_val + UUID_LEN;
713 pcookie.uuids[i].bv_len = UUID_LEN;
718 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
719 fop.o_bd->be_search( &fop, &frs );
720 fop.o_bd->bd_info = (BackendInfo *)on;
724 if ( ber_bvcmp( &si->si_ctxcsn[maxid], &maxcsn )) {
726 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
727 assert( !syn->ssyn_validate( syn, &maxcsn ));
729 ber_bvreplace( &si->si_ctxcsn[maxid], &maxcsn );
730 si->si_numops++; /* ensure a checkpoint */
734 /* If matching CSN was not found, invalidate the context. */
735 if ( !cb.sc_private ) {
736 /* If we didn't find an exact match, then try for <= */
737 if ( findcsn_retry ) {
739 rs_reinit( &frs, REP_RESULT );
742 rc = LDAP_NO_SUCH_OBJECT;
746 op->o_tmpfree( pcookie.uuids, op->o_tmpmemctx );
753 /* Should find a place to cache these */
754 static mutexint *get_mutexint()
756 mutexint *mi = ch_malloc( sizeof( mutexint ));
757 ldap_pvt_thread_mutex_init( &mi->mi_mutex );
762 static void inc_mutexint( mutexint *mi )
764 ldap_pvt_thread_mutex_lock( &mi->mi_mutex );
766 ldap_pvt_thread_mutex_unlock( &mi->mi_mutex );
769 /* return resulting counter */
770 static int dec_mutexint( mutexint *mi )
773 ldap_pvt_thread_mutex_lock( &mi->mi_mutex );
775 ldap_pvt_thread_mutex_unlock( &mi->mi_mutex );
777 ldap_pvt_thread_mutex_destroy( &mi->mi_mutex );
784 syncprov_free_syncop( syncops *so )
786 syncres *sr, *srnext;
787 GroupAssertion *ga, *gnext;
789 ldap_pvt_thread_mutex_lock( &so->s_mutex );
790 /* already being freed, or still in use */
791 if ( !so->s_inuse || --so->s_inuse > 0 ) {
792 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
795 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
796 if ( so->s_flags & PS_IS_DETACHED ) {
797 filter_free( so->s_op->ors_filter );
798 for ( ga = so->s_op->o_groups; ga; ga=gnext ) {
804 ch_free( so->s_base.bv_val );
805 for ( sr=so->s_res; sr; sr=srnext ) {
808 if ( !dec_mutexint( sr->s_e->e_private )) {
809 sr->s_e->e_private = NULL;
810 entry_free( sr->s_e );
815 ldap_pvt_thread_mutex_destroy( &so->s_mutex );
819 /* Send a persistent search response */
821 syncprov_sendresp( Operation *op, opcookie *opc, syncops *so, int mode )
823 SlapReply rs = { REP_SEARCH };
824 LDAPControl *ctrls[2];
825 struct berval cookie = BER_BVNULL, csns[2];
827 Attribute a_uuid = {0};
829 if ( so->s_op->o_abandon )
830 return SLAPD_ABANDON;
833 if ( !BER_BVISNULL( &opc->sctxcsn )) {
834 csns[0] = opc->sctxcsn;
835 BER_BVZERO( &csns[1] );
836 slap_compose_sync_cookie( op, &cookie, csns, so->s_rid, slap_serverID ? slap_serverID : -1 );
840 if ( so->s_sid > 0 ) {
841 Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: to=%03x, cookie=%s\n",
842 so->s_sid, cookie.bv_val ? cookie.bv_val : "", 0 );
844 Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: cookie=%s\n",
845 cookie.bv_val ? cookie.bv_val : "", 0, 0 );
849 e_uuid.e_attrs = &a_uuid;
850 a_uuid.a_desc = slap_schema.si_ad_entryUUID;
851 a_uuid.a_nvals = &opc->suuid;
852 rs.sr_err = syncprov_state_ctrl( op, &rs, &e_uuid,
853 mode, ctrls, 0, 1, &cookie );
854 if ( !BER_BVISNULL( &cookie )) {
855 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
859 rs.sr_entry = &e_uuid;
860 if ( mode == LDAP_SYNC_ADD || mode == LDAP_SYNC_MODIFY ) {
862 e_uuid.e_private = NULL;
867 if ( opc->sreference && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
868 rs.sr_ref = get_entry_referrals( op, rs.sr_entry );
869 rs.sr_err = send_search_reference( op, &rs );
870 ber_bvarray_free( rs.sr_ref );
874 case LDAP_SYNC_MODIFY:
875 rs.sr_attrs = op->ors_attrs;
876 rs.sr_err = send_search_entry( op, &rs );
878 case LDAP_SYNC_DELETE:
879 e_uuid.e_attrs = NULL;
880 e_uuid.e_name = opc->sdn;
881 e_uuid.e_nname = opc->sndn;
882 if ( opc->sreference && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
883 struct berval bv = BER_BVNULL;
885 rs.sr_err = send_search_reference( op, &rs );
887 rs.sr_err = send_search_entry( op, &rs );
893 /* In case someone else freed it already? */
896 for ( i=0; rs.sr_ctrls[i]; i++ ) {
897 if ( rs.sr_ctrls[i] == ctrls[0] ) {
898 op->o_tmpfree( ctrls[0]->ldctl_value.bv_val, op->o_tmpmemctx );
899 ctrls[0]->ldctl_value.bv_val = NULL;
910 syncprov_qstart( syncops *so );
912 /* Play back queued responses */
914 syncprov_qplay( Operation *op, syncops *so )
916 slap_overinst *on = LDAP_SLIST_FIRST(&so->s_op->o_extra)->oe_key;
924 ldap_pvt_thread_mutex_lock( &so->s_mutex );
927 so->s_res = sr->s_next;
929 so->s_restail = NULL;
930 /* Exit loop with mutex held */
931 if ( !sr || so->s_op->o_abandon )
933 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
935 if ( sr->s_mode == LDAP_SYNC_NEW_COOKIE ) {
936 SlapReply rs = { REP_INTERMEDIATE };
938 rc = syncprov_sendinfo( op, &rs, LDAP_TAG_SYNC_NEW_COOKIE,
939 &sr->s_csn, 0, NULL, 0 );
942 opc.sndn = sr->s_ndn;
943 opc.suuid = sr->s_uuid;
944 opc.sctxcsn = sr->s_csn;
945 opc.sreference = sr->s_isreference;
948 rc = syncprov_sendresp( op, &opc, so, sr->s_mode );
952 if ( !dec_mutexint( sr->s_e->e_private )) {
953 sr->s_e->e_private = NULL;
954 entry_free ( sr->s_e );
960 /* Exit loop with mutex held */
961 ldap_pvt_thread_mutex_lock( &so->s_mutex );
965 /* We now only send one change at a time, to prevent one
966 * psearch from hogging all the CPU. Resubmit this task if
967 * there are more responses queued and no errors occurred.
970 if ( rc == 0 && so->s_res ) {
971 syncprov_qstart( so );
973 so->s_flags ^= PS_TASK_QUEUED;
976 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
980 /* task for playing back queued responses */
982 syncprov_qtask( void *ctx, void *arg )
985 OperationBuffer opbuf;
992 op->o_hdr = &opbuf.ob_hdr;
993 op->o_controls = opbuf.ob_controls;
994 memset( op->o_controls, 0, sizeof(opbuf.ob_controls) );
996 *op->o_hdr = *so->s_op->o_hdr;
998 op->o_tmpmemctx = slap_sl_mem_create(SLAP_SLAB_SIZE, SLAP_SLAB_STACK, ctx, 1);
999 op->o_tmpmfuncs = &slap_sl_mfuncs;
1000 op->o_threadctx = ctx;
1002 /* syncprov_qplay expects a fake db */
1003 be = *so->s_op->o_bd;
1004 be.be_flags |= SLAP_DBFLAG_OVERLAY;
1006 LDAP_SLIST_FIRST(&op->o_extra) = NULL;
1007 op->o_callback = NULL;
1009 rc = syncprov_qplay( op, so );
1011 /* decrement use count... */
1012 syncprov_free_syncop( so );
1017 /* Start the task to play back queued psearch responses */
1019 syncprov_qstart( syncops *so )
1021 so->s_flags |= PS_TASK_QUEUED;
1023 ldap_pvt_thread_pool_submit( &connection_pool,
1024 syncprov_qtask, so );
1027 /* Queue a persistent search response */
1029 syncprov_qresp( opcookie *opc, syncops *so, int mode )
1033 struct berval cookie = opc->sctxcsn;
1035 if ( mode == LDAP_SYNC_NEW_COOKIE ) {
1036 syncprov_info_t *si = opc->son->on_bi.bi_private;
1038 slap_compose_sync_cookie( NULL, &cookie, si->si_ctxcsn,
1039 so->s_rid, slap_serverID ? slap_serverID : -1);
1042 srsize = sizeof(syncres) + opc->suuid.bv_len + 1 +
1043 opc->sdn.bv_len + 1 + opc->sndn.bv_len + 1;
1044 if ( cookie.bv_len )
1045 srsize += cookie.bv_len + 1;
1046 sr = ch_malloc( srsize );
1049 /* bump refcount on this entry */
1051 inc_mutexint( opc->se->e_private );
1052 sr->s_dn.bv_val = (char *)(sr + 1);
1053 sr->s_dn.bv_len = opc->sdn.bv_len;
1055 sr->s_isreference = opc->sreference;
1056 sr->s_ndn.bv_val = lutil_strcopy( sr->s_dn.bv_val,
1057 opc->sdn.bv_val ) + 1;
1058 sr->s_ndn.bv_len = opc->sndn.bv_len;
1059 sr->s_uuid.bv_val = lutil_strcopy( sr->s_ndn.bv_val,
1060 opc->sndn.bv_val ) + 1;
1061 sr->s_uuid.bv_len = opc->suuid.bv_len;
1062 AC_MEMCPY( sr->s_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1063 if ( cookie.bv_len ) {
1064 sr->s_csn.bv_val = sr->s_uuid.bv_val + sr->s_uuid.bv_len + 1;
1065 strcpy( sr->s_csn.bv_val, cookie.bv_val );
1067 sr->s_csn.bv_val = NULL;
1069 sr->s_csn.bv_len = cookie.bv_len;
1071 if ( mode == LDAP_SYNC_NEW_COOKIE && cookie.bv_val ) {
1072 ch_free( cookie.bv_val );
1075 ldap_pvt_thread_mutex_lock( &so->s_mutex );
1079 so->s_restail->s_next = sr;
1083 /* If the base of the psearch was modified, check it next time round */
1084 if ( so->s_flags & PS_WROTE_BASE ) {
1085 so->s_flags ^= PS_WROTE_BASE;
1086 so->s_flags |= PS_FIND_BASE;
1088 if (( so->s_flags & (PS_IS_DETACHED|PS_TASK_QUEUED)) == PS_IS_DETACHED ) {
1089 syncprov_qstart( so );
1091 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
1092 return LDAP_SUCCESS;
1096 syncprov_drop_psearch( syncops *so, int lock )
1098 if ( so->s_flags & PS_IS_DETACHED ) {
1100 ldap_pvt_thread_mutex_lock( &so->s_op->o_conn->c_mutex );
1101 so->s_op->o_conn->c_n_ops_executing--;
1102 so->s_op->o_conn->c_n_ops_completed++;
1103 LDAP_STAILQ_REMOVE( &so->s_op->o_conn->c_ops, so->s_op, Operation,
1106 ldap_pvt_thread_mutex_unlock( &so->s_op->o_conn->c_mutex );
1108 syncprov_free_syncop( so );
1114 syncprov_ab_cleanup( Operation *op, SlapReply *rs )
1116 slap_callback *sc = op->o_callback;
1117 op->o_callback = sc->sc_next;
1118 syncprov_drop_psearch( op->o_callback->sc_private, 0 );
1119 op->o_tmpfree( sc, op->o_tmpmemctx );
1124 syncprov_op_abandon( Operation *op, SlapReply *rs )
1126 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1127 syncprov_info_t *si = on->on_bi.bi_private;
1128 syncops *so, *soprev;
1130 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1131 for ( so=si->si_ops, soprev = (syncops *)&si->si_ops; so;
1132 soprev=so, so=so->s_next ) {
1133 if ( so->s_op->o_connid == op->o_connid &&
1134 so->s_op->o_msgid == op->orn_msgid ) {
1135 so->s_op->o_abandon = 1;
1136 soprev->s_next = so->s_next;
1140 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1142 /* Is this really a Cancel exop? */
1143 if ( op->o_tag != LDAP_REQ_ABANDON ) {
1144 so->s_op->o_cancel = SLAP_CANCEL_ACK;
1145 rs->sr_err = LDAP_CANCELLED;
1146 send_ldap_result( so->s_op, rs );
1147 if ( so->s_flags & PS_IS_DETACHED ) {
1149 cb = op->o_tmpcalloc( 1, sizeof(slap_callback), op->o_tmpmemctx );
1150 cb->sc_cleanup = syncprov_ab_cleanup;
1151 cb->sc_next = op->o_callback;
1152 cb->sc_private = so;
1153 return SLAP_CB_CONTINUE;
1156 syncprov_drop_psearch( so, 0 );
1158 return SLAP_CB_CONTINUE;
1161 /* Find which persistent searches are affected by this operation */
1163 syncprov_matchops( Operation *op, opcookie *opc, int saveit )
1165 slap_overinst *on = opc->son;
1166 syncprov_info_t *si = on->on_bi.bi_private;
1169 syncops *ss, *sprev, *snext;
1173 struct berval newdn;
1175 BackendDB *b0 = op->o_bd, db;
1177 fc.fdn = &op->o_req_ndn;
1178 /* compute new DN */
1179 if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1181 if ( op->orr_nnewSup ) pdn = *op->orr_nnewSup;
1182 else dnParent( fc.fdn, &pdn );
1183 build_new_dn( &newdn, &pdn, &op->orr_nnewrdn, op->o_tmpmemctx );
1187 if ( op->o_tag != LDAP_REQ_ADD ) {
1188 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1192 rc = overlay_entry_get_ov( op, fc.fdn, NULL, NULL, 0, &e, on );
1193 /* If we're sending responses now, make a copy and unlock the DB */
1194 if ( e && !saveit ) {
1196 opc->se = entry_dup( e );
1197 opc->se->e_private = get_mutexint();
1199 overlay_entry_release_ov( op, e, 0, on );
1210 opc->se = entry_dup( e );
1211 opc->se->e_private = get_mutexint();
1217 if ( saveit || op->o_tag == LDAP_REQ_ADD ) {
1218 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1219 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1220 opc->sreference = is_entry_referral( e );
1221 a = attr_find( e->e_attrs, slap_schema.si_ad_entryUUID );
1223 ber_dupbv_x( &opc->suuid, &a->a_nvals[0], op->o_tmpmemctx );
1224 } else if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1225 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1226 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1227 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1228 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1231 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1232 for (ss = si->si_ops, sprev = (syncops *)&si->si_ops; ss;
1233 sprev = ss, ss=snext)
1241 if ( ss->s_op->o_abandon )
1244 /* Don't send ops back to the originator */
1245 if ( opc->osid > 0 && opc->osid == ss->s_sid ) {
1246 Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping original sid %03x\n",
1251 /* Don't send ops back to the messenger */
1252 if ( opc->rsid > 0 && opc->rsid == ss->s_sid ) {
1253 Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping relayed sid %03x\n",
1263 /* If the base of the search is missing, signal a refresh */
1264 rc = syncprov_findbase( op, &fc );
1265 if ( rc != LDAP_SUCCESS ) {
1266 SlapReply rs = {REP_RESULT};
1267 send_ldap_error( ss->s_op, &rs, LDAP_SYNC_REFRESH_REQUIRED,
1268 "search base has changed" );
1269 sprev->s_next = snext;
1270 syncprov_drop_psearch( ss, 1 );
1275 /* If we're sending results now, look for this op in old matches */
1279 /* Did we modify the search base? */
1280 if ( dn_match( &op->o_req_ndn, &ss->s_base )) {
1281 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1282 ss->s_flags |= PS_WROTE_BASE;
1283 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1286 for ( sm=opc->smatches, old=(syncmatches *)&opc->smatches; sm;
1287 old=sm, sm=sm->sm_next ) {
1288 if ( sm->sm_op == ss ) {
1290 old->sm_next = sm->sm_next;
1291 op->o_tmpfree( sm, op->o_tmpmemctx );
1298 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1301 oh.oh_conn = ss->s_op->o_conn;
1302 oh.oh_connid = ss->s_op->o_connid;
1303 op2.o_bd = op->o_bd->bd_self;
1305 op2.o_extra = op->o_extra;
1306 op2.o_callback = NULL;
1307 if (ss->s_flags & PS_FIX_FILTER) {
1308 /* Skip the AND/GE clause that we stuck on in front. We
1309 would lose deletes/mods that happen during the refresh
1310 phase otherwise (ITS#6555) */
1311 op2.ors_filter = ss->s_op->ors_filter->f_and->f_next;
1313 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1314 rc = test_filter( &op2, e, op2.ors_filter );
1317 Debug( LDAP_DEBUG_TRACE, "syncprov_matchops: sid %03x fscope %d rc %d\n",
1318 ss->s_sid, fc.fscope, rc );
1320 /* check if current o_req_dn is in scope and matches filter */
1321 if ( fc.fscope && rc == LDAP_COMPARE_TRUE ) {
1323 sm = op->o_tmpalloc( sizeof(syncmatches), op->o_tmpmemctx );
1324 sm->sm_next = opc->smatches;
1326 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1328 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1331 /* if found send UPDATE else send ADD */
1332 syncprov_qresp( opc, ss,
1333 found ? LDAP_SYNC_MODIFY : LDAP_SYNC_ADD );
1335 } else if ( !saveit && found ) {
1337 syncprov_qresp( opc, ss, LDAP_SYNC_DELETE );
1338 } else if ( !saveit ) {
1339 syncprov_qresp( opc, ss, LDAP_SYNC_NEW_COOKIE );
1341 if ( !saveit && found ) {
1342 /* Decrement s_inuse, was incremented when called
1343 * with saveit == TRUE
1345 syncprov_free_syncop( ss );
1348 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1350 if ( op->o_tag != LDAP_REQ_ADD && e ) {
1351 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1355 overlay_entry_release_ov( op, e, 0, on );
1358 if ( opc->se && !saveit ) {
1359 if ( !dec_mutexint( opc->se->e_private )) {
1360 opc->se->e_private = NULL;
1361 entry_free( opc->se );
1366 op->o_tmpfree( fc.fdn->bv_val, op->o_tmpmemctx );
1372 syncprov_op_cleanup( Operation *op, SlapReply *rs )
1374 slap_callback *cb = op->o_callback;
1375 opcookie *opc = cb->sc_private;
1376 slap_overinst *on = opc->son;
1377 syncprov_info_t *si = on->on_bi.bi_private;
1378 syncmatches *sm, *snext;
1381 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1382 if ( si->si_active )
1384 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1386 for (sm = opc->smatches; sm; sm=snext) {
1387 snext = sm->sm_next;
1388 syncprov_free_syncop( sm->sm_op );
1389 op->o_tmpfree( sm, op->o_tmpmemctx );
1392 /* Remove op from lock table */
1395 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1396 mt->mt_mods = mt->mt_mods->mi_next;
1397 /* If there are more, promote the next one */
1398 if ( mt->mt_mods ) {
1399 mt->mt_op = mt->mt_mods->mi_op;
1400 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1402 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1403 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1404 avl_delete( &si->si_mods, mt, sp_avl_cmp );
1405 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1406 ldap_pvt_thread_mutex_destroy( &mt->mt_mutex );
1410 if ( !BER_BVISNULL( &opc->suuid ))
1411 op->o_tmpfree( opc->suuid.bv_val, op->o_tmpmemctx );
1412 if ( !BER_BVISNULL( &opc->sndn ))
1413 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1414 if ( !BER_BVISNULL( &opc->sdn ))
1415 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1416 op->o_callback = cb->sc_next;
1417 op->o_tmpfree(cb, op->o_tmpmemctx);
1423 syncprov_checkpoint( Operation *op, slap_overinst *on )
1425 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
1428 SlapReply rsm = {REP_RESULT};
1429 slap_callback cb = {0};
1434 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1437 for ( i=0; i<si->si_numcsns; i++ ) {
1438 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1441 mod.sml_numvals = si->si_numcsns;
1442 mod.sml_values = si->si_ctxcsn;
1443 mod.sml_nvalues = NULL;
1444 mod.sml_desc = slap_schema.si_ad_contextCSN;
1445 mod.sml_op = LDAP_MOD_REPLACE;
1446 mod.sml_flags = SLAP_MOD_INTERNAL;
1447 mod.sml_next = NULL;
1449 cb.sc_response = slap_null_cb;
1451 opm.o_tag = LDAP_REQ_MODIFY;
1452 opm.o_callback = &cb;
1453 opm.orm_modlist = &mod;
1454 opm.orm_no_opattrs = 1;
1455 if ( SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1456 be = *on->on_info->oi_origdb;
1459 opm.o_req_dn = si->si_contextdn;
1460 opm.o_req_ndn = si->si_contextdn;
1461 bi = opm.o_bd->bd_info;
1462 opm.o_bd->bd_info = on->on_info->oi_orig;
1463 opm.o_managedsait = SLAP_CONTROL_NONCRITICAL;
1464 opm.o_no_schema_check = 1;
1465 opm.o_bd->be_modify( &opm, &rsm );
1467 if ( rsm.sr_err == LDAP_NO_SUCH_OBJECT &&
1468 SLAP_SYNC_SUBENTRY( opm.o_bd )) {
1470 char txtbuf[SLAP_TEXT_BUFLEN];
1471 size_t textlen = sizeof txtbuf;
1472 Entry *e = slap_create_context_csn_entry( opm.o_bd, NULL );
1473 rs_reinit( &rsm, REP_RESULT );
1474 slap_mods2entry( &mod, &e, 0, 1, &text, txtbuf, textlen);
1476 opm.o_bd->be_add( &opm, &rsm );
1477 if ( e == opm.ora_e )
1478 be_entry_release_w( &opm, opm.ora_e );
1480 opm.o_bd->bd_info = bi;
1482 if ( mod.sml_next != NULL ) {
1483 slap_mods_free( mod.sml_next, 1 );
1486 for ( i=0; i<si->si_numcsns; i++ ) {
1487 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1493 syncprov_add_slog( Operation *op )
1495 opcookie *opc = op->o_callback->sc_private;
1496 slap_overinst *on = opc->son;
1497 syncprov_info_t *si = on->on_bi.bi_private;
1503 if ( BER_BVISEMPTY( &op->o_csn ) ) {
1504 /* During the syncrepl refresh phase we can receive operations
1505 * without a csn. We cannot reliably determine the consumers
1506 * state with respect to such operations, so we ignore them and
1507 * wipe out anything in the log if we see them.
1509 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1510 while ( se = sl->sl_head ) {
1511 sl->sl_head = se->se_next;
1516 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1520 /* Allocate a record. UUIDs are not NUL-terminated. */
1521 se = ch_malloc( sizeof( slog_entry ) + opc->suuid.bv_len +
1522 op->o_csn.bv_len + 1 );
1524 se->se_tag = op->o_tag;
1526 se->se_uuid.bv_val = (char *)(&se[1]);
1527 AC_MEMCPY( se->se_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1528 se->se_uuid.bv_len = opc->suuid.bv_len;
1530 se->se_csn.bv_val = se->se_uuid.bv_val + opc->suuid.bv_len;
1531 AC_MEMCPY( se->se_csn.bv_val, op->o_csn.bv_val, op->o_csn.bv_len );
1532 se->se_csn.bv_val[op->o_csn.bv_len] = '\0';
1533 se->se_csn.bv_len = op->o_csn.bv_len;
1534 se->se_sid = slap_parse_csn_sid( &se->se_csn );
1536 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1537 if ( sl->sl_head ) {
1538 /* Keep the list in csn order. */
1539 if ( ber_bvcmp( &sl->sl_tail->se_csn, &se->se_csn ) <= 0 ) {
1540 sl->sl_tail->se_next = se;
1545 for ( sep = &sl->sl_head; *sep; sep = &(*sep)->se_next ) {
1546 if ( ber_bvcmp( &se->se_csn, &(*sep)->se_csn ) < 0 ) {
1558 while ( sl->sl_num > sl->sl_size ) {
1560 sl->sl_head = se->se_next;
1561 AC_MEMCPY( sl->sl_mincsn.bv_val, se->se_csn.bv_val, se->se_csn.bv_len );
1562 sl->sl_mincsn.bv_len = se->se_csn.bv_len;
1566 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1570 /* Just set a flag if we found the matching entry */
1572 playlog_cb( Operation *op, SlapReply *rs )
1574 if ( rs->sr_type == REP_SEARCH ) {
1575 op->o_callback->sc_private = (void *)1;
1580 /* enter with sl->sl_mutex locked, release before returning */
1582 syncprov_playlog( Operation *op, SlapReply *rs, sessionlog *sl,
1583 sync_control *srs, BerVarray ctxcsn, int numcsns, int *sids )
1585 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1587 int i, j, ndel, num, nmods, mmods;
1588 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
1590 struct berval delcsn[2];
1592 if ( !sl->sl_num ) {
1593 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1601 uuids = op->o_tmpalloc( (num+1) * sizeof( struct berval ) +
1602 num * UUID_LEN, op->o_tmpmemctx );
1603 uuids[0].bv_val = (char *)(uuids + num + 1);
1605 delcsn[0].bv_len = 0;
1606 delcsn[0].bv_val = cbuf;
1607 BER_BVZERO(&delcsn[1]);
1609 /* Make a copy of the relevant UUIDs. Put the Deletes up front
1610 * and everything else at the end. Do this first so we can
1611 * unlock the list mutex.
1613 Debug( LDAP_DEBUG_SYNC, "srs csn %s\n",
1614 srs->sr_state.ctxcsn[0].bv_val, 0, 0 );
1615 for ( se=sl->sl_head; se; se=se->se_next ) {
1617 Debug( LDAP_DEBUG_SYNC, "log csn %s\n", se->se_csn.bv_val, 0, 0 );
1619 for ( k=0; k<srs->sr_state.numcsns; k++ ) {
1620 if ( se->se_sid == srs->sr_state.sids[k] ) {
1621 ndel = ber_bvcmp( &se->se_csn, &srs->sr_state.ctxcsn[k] );
1626 Debug( LDAP_DEBUG_SYNC, "cmp %d, too old\n", ndel, 0, 0 );
1630 for ( k=0; k<numcsns; k++ ) {
1631 if ( se->se_sid == sids[k] ) {
1632 ndel = ber_bvcmp( &se->se_csn, &ctxcsn[k] );
1637 Debug( LDAP_DEBUG_SYNC, "cmp %d, too new\n", ndel, 0, 0 );
1640 if ( se->se_tag == LDAP_REQ_DELETE ) {
1643 AC_MEMCPY( cbuf, se->se_csn.bv_val, se->se_csn.bv_len );
1644 delcsn[0].bv_len = se->se_csn.bv_len;
1645 delcsn[0].bv_val[delcsn[0].bv_len] = '\0';
1647 if ( se->se_tag == LDAP_REQ_ADD )
1652 uuids[j].bv_val = uuids[0].bv_val + (j * UUID_LEN);
1653 AC_MEMCPY(uuids[j].bv_val, se->se_uuid.bv_val, UUID_LEN);
1654 uuids[j].bv_len = UUID_LEN;
1656 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1660 /* Zero out unused slots */
1661 for ( i=ndel; i < num - nmods; i++ )
1662 uuids[i].bv_len = 0;
1664 /* Mods must be validated to see if they belong in this delete set.
1668 /* Strip any duplicates */
1669 for ( i=0; i<nmods; i++ ) {
1670 for ( j=0; j<ndel; j++ ) {
1671 if ( bvmatch( &uuids[j], &uuids[num - 1 - i] )) {
1672 uuids[num - 1 - i].bv_len = 0;
1677 if ( uuids[num - 1 - i].bv_len == 0 ) continue;
1678 for ( j=0; j<i; j++ ) {
1679 if ( bvmatch( &uuids[num - 1 - j], &uuids[num - 1 - i] )) {
1680 uuids[num - 1 - i].bv_len = 0;
1691 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
1692 slap_callback cb = {0};
1696 fop.o_sync_mode = 0;
1697 fop.o_callback = &cb;
1698 fop.ors_limit = NULL;
1699 fop.ors_tlimit = SLAP_NO_LIMIT;
1700 fop.ors_attrs = slap_anlist_all_attributes;
1701 fop.ors_attrsonly = 0;
1702 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
1704 af.f_choice = LDAP_FILTER_AND;
1707 mf.f_choice = LDAP_FILTER_EQUALITY;
1709 mf.f_av_desc = slap_schema.si_ad_entryUUID;
1710 mf.f_next = fop.ors_filter;
1712 fop.ors_filter = ⁡
1714 cb.sc_response = playlog_cb;
1715 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
1717 for ( i=ndel; i<num; i++ ) {
1718 if ( uuids[i].bv_len != 0 ) {
1719 SlapReply frs = { REP_RESULT };
1721 mf.f_av_value = uuids[i];
1722 cb.sc_private = NULL;
1724 rc = fop.o_bd->be_search( &fop, &frs );
1726 /* If entry was not found, add to delete list */
1727 if ( !cb.sc_private ) {
1728 uuids[ndel++] = uuids[i];
1732 fop.o_bd->bd_info = (BackendInfo *)on;
1735 struct berval cookie;
1737 if ( delcsn[0].bv_len ) {
1738 slap_compose_sync_cookie( op, &cookie, delcsn, srs->sr_state.rid,
1739 slap_serverID ? slap_serverID : -1 );
1741 Debug( LDAP_DEBUG_SYNC, "syncprov_playlog: cookie=%s\n", cookie.bv_val, 0, 0 );
1744 uuids[ndel].bv_val = NULL;
1745 syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET,
1746 delcsn[0].bv_len ? &cookie : NULL, 0, uuids, 1 );
1747 if ( delcsn[0].bv_len ) {
1748 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
1751 op->o_tmpfree( uuids, op->o_tmpmemctx );
1755 syncprov_op_response( Operation *op, SlapReply *rs )
1757 opcookie *opc = op->o_callback->sc_private;
1758 slap_overinst *on = opc->son;
1759 syncprov_info_t *si = on->on_bi.bi_private;
1762 if ( rs->sr_err == LDAP_SUCCESS )
1764 struct berval maxcsn;
1765 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
1766 int do_check = 0, have_psearches, foundit, csn_changed = 0;
1768 ldap_pvt_thread_mutex_lock( &si->si_resp_mutex );
1770 /* Update our context CSN */
1772 maxcsn.bv_val = cbuf;
1773 maxcsn.bv_len = sizeof(cbuf);
1774 ldap_pvt_thread_rdwr_wlock( &si->si_csn_rwlock );
1776 slap_get_commit_csn( op, &maxcsn, &foundit );
1777 if ( BER_BVISEMPTY( &maxcsn ) && SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1778 /* syncrepl queues the CSN values in the db where
1779 * it is configured , not where the changes are made.
1780 * So look for a value in the glue db if we didn't
1781 * find any in this db.
1783 BackendDB *be = op->o_bd;
1784 op->o_bd = select_backend( &be->be_nsuffix[0], 1);
1785 maxcsn.bv_val = cbuf;
1786 maxcsn.bv_len = sizeof(cbuf);
1787 slap_get_commit_csn( op, &maxcsn, &foundit );
1790 if ( !BER_BVISEMPTY( &maxcsn ) ) {
1793 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1794 assert( !syn->ssyn_validate( syn, &maxcsn ));
1796 sid = slap_parse_csn_sid( &maxcsn );
1797 for ( i=0; i<si->si_numcsns; i++ ) {
1798 if ( sid == si->si_sids[i] ) {
1799 if ( ber_bvcmp( &maxcsn, &si->si_ctxcsn[i] ) > 0 ) {
1800 ber_bvreplace( &si->si_ctxcsn[i], &maxcsn );
1806 /* It's a new SID for us */
1807 if ( i == si->si_numcsns ) {
1808 value_add_one( &si->si_ctxcsn, &maxcsn );
1811 si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
1813 si->si_sids[i] = sid;
1817 /* Don't do any processing for consumer contextCSN updates */
1818 if ( op->o_dont_replicate ) {
1819 if ( op->o_tag == LDAP_REQ_MODIFY &&
1820 op->orm_modlist->sml_op == LDAP_MOD_REPLACE &&
1821 op->orm_modlist->sml_desc == slap_schema.si_ad_contextCSN ) {
1822 /* Catch contextCSN updates from syncrepl. We have to look at
1823 * all the attribute values, as there may be more than one csn
1824 * that changed, and only one can be passed in the csn queue.
1826 Modifications *mod = op->orm_modlist;
1830 for ( i=0; i<mod->sml_numvals; i++ ) {
1831 sid = slap_parse_csn_sid( &mod->sml_values[i] );
1832 for ( j=0; j<si->si_numcsns; j++ ) {
1833 if ( sid == si->si_sids[j] ) {
1834 if ( ber_bvcmp( &mod->sml_values[i], &si->si_ctxcsn[j] ) > 0 ) {
1835 ber_bvreplace( &si->si_ctxcsn[j], &mod->sml_values[i] );
1842 if ( j == si->si_numcsns ) {
1843 value_add_one( &si->si_ctxcsn, &mod->sml_values[i] );
1845 si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
1847 si->si_sids[j] = sid;
1853 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1855 if ( csn_changed ) {
1857 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1858 for ( ss = si->si_ops; ss; ss = ss->s_next ) {
1859 if ( ss->s_op->o_abandon )
1861 /* Send the updated csn to all syncrepl consumers,
1862 * including the server from which it originated.
1863 * The syncrepl consumer and syncprov provider on
1864 * the originating server may be configured to store
1865 * their csn values in different entries.
1867 syncprov_qresp( opc, ss, LDAP_SYNC_NEW_COOKIE );
1869 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1872 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1878 if ( si->si_chkops || si->si_chktime ) {
1879 /* Never checkpoint adding the context entry,
1882 if ( op->o_tag != LDAP_REQ_ADD ||
1883 !dn_match( &op->o_req_ndn, &si->si_contextdn )) {
1884 if ( si->si_chkops && si->si_numops >= si->si_chkops ) {
1888 if ( si->si_chktime &&
1889 (op->o_time - si->si_chklast >= si->si_chktime )) {
1890 if ( si->si_chklast ) {
1892 si->si_chklast = op->o_time;
1899 si->si_dirty = !csn_changed;
1900 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1903 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1904 syncprov_checkpoint( op, on );
1905 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1908 /* only update consumer ctx if this is a newer csn */
1909 if ( csn_changed ) {
1910 opc->sctxcsn = maxcsn;
1913 /* Handle any persistent searches */
1914 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1915 have_psearches = ( si->si_ops != NULL );
1916 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1917 if ( have_psearches ) {
1920 case LDAP_REQ_MODIFY:
1921 case LDAP_REQ_MODRDN:
1922 case LDAP_REQ_EXTENDED:
1923 syncprov_matchops( op, opc, 0 );
1925 case LDAP_REQ_DELETE:
1926 /* for each match in opc->smatches:
1929 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1930 if ( sm->sm_op->s_op->o_abandon )
1932 syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_DELETE );
1938 /* Add any log records */
1939 if ( si->si_logs ) {
1940 syncprov_add_slog( op );
1942 leave: ldap_pvt_thread_mutex_unlock( &si->si_resp_mutex );
1944 return SLAP_CB_CONTINUE;
1947 /* We don't use a subentry to store the context CSN any more.
1948 * We expose the current context CSN as an operational attribute
1949 * of the suffix entry.
1952 syncprov_op_compare( Operation *op, SlapReply *rs )
1954 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1955 syncprov_info_t *si = on->on_bi.bi_private;
1956 int rc = SLAP_CB_CONTINUE;
1958 if ( dn_match( &op->o_req_ndn, &si->si_contextdn ) &&
1959 op->oq_compare.rs_ava->aa_desc == slap_schema.si_ad_contextCSN )
1964 e.e_name = si->si_contextdn;
1965 e.e_nname = si->si_contextdn;
1968 a.a_desc = slap_schema.si_ad_contextCSN;
1970 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1972 a.a_vals = si->si_ctxcsn;
1973 a.a_nvals = a.a_vals;
1974 a.a_numvals = si->si_numcsns;
1976 rs->sr_err = access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc,
1977 &op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL );
1978 if ( ! rs->sr_err ) {
1979 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1980 goto return_results;
1983 if ( get_assert( op ) &&
1984 ( test_filter( op, &e, get_assertion( op ) ) != LDAP_COMPARE_TRUE ) )
1986 rs->sr_err = LDAP_ASSERTION_FAILED;
1987 goto return_results;
1991 rs->sr_err = LDAP_COMPARE_FALSE;
1993 if ( attr_valfind( &a,
1994 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
1995 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
1996 &op->oq_compare.rs_ava->aa_value, NULL, op->o_tmpmemctx ) == 0 )
1998 rs->sr_err = LDAP_COMPARE_TRUE;
2003 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2005 send_ldap_result( op, rs );
2007 if( rs->sr_err == LDAP_COMPARE_FALSE || rs->sr_err == LDAP_COMPARE_TRUE ) {
2008 rs->sr_err = LDAP_SUCCESS;
2017 syncprov_op_mod( Operation *op, SlapReply *rs )
2019 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2020 syncprov_info_t *si = on->on_bi.bi_private;
2023 int have_psearches, cbsize;
2025 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2026 have_psearches = ( si->si_ops != NULL );
2028 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2030 cbsize = sizeof(slap_callback) + sizeof(opcookie) +
2031 (have_psearches ? sizeof(modinst) : 0 );
2033 cb = op->o_tmpcalloc(1, cbsize, op->o_tmpmemctx);
2034 opc = (opcookie *)(cb+1);
2036 cb->sc_response = syncprov_op_response;
2037 cb->sc_cleanup = syncprov_op_cleanup;
2038 cb->sc_private = opc;
2039 cb->sc_next = op->o_callback;
2040 op->o_callback = cb;
2044 if ( op->o_csn.bv_val ) {
2045 opc->osid = slap_parse_csn_sid( &op->o_csn );
2047 if ( op->o_controls ) {
2048 struct sync_cookie *scook =
2049 op->o_controls[slap_cids.sc_LDAPsync];
2051 opc->rsid = scook->sid;
2054 /* If there are active persistent searches, lock this operation.
2055 * See seqmod.c for the locking logic on its own.
2057 if ( have_psearches ) {
2058 modtarget *mt, mtdummy;
2061 mi = (modinst *)(opc+1);
2064 /* See if we're already modifying this entry... */
2066 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
2067 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
2069 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
2070 if ( mt->mt_mods == NULL ) {
2071 /* Cannot reuse this mt, as another thread is about
2072 * to release it in syncprov_op_cleanup.
2074 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2079 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
2080 mt->mt_tail->mi_next = mi;
2082 /* wait for this op to get to head of list */
2083 while ( mt->mt_mods != mi ) {
2084 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2085 /* FIXME: if dynamic config can delete overlays or
2086 * databases we'll have to check for cleanup here.
2087 * Currently it's not an issue because there are
2088 * no dynamic config deletes...
2090 if ( slapd_shutdown )
2091 return SLAPD_ABANDON;
2093 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
2094 ldap_pvt_thread_yield();
2095 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
2097 /* clean up if the caller is giving up */
2098 if ( op->o_abandon ) {
2100 for ( m2 = mt->mt_mods; m2->mi_next != mi;
2102 m2->mi_next = mi->mi_next;
2103 if ( mt->mt_tail == mi ) mt->mt_tail = m2;
2104 op->o_tmpfree( cb, op->o_tmpmemctx );
2105 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2106 return SLAPD_ABANDON;
2109 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2111 /* Record that we're modifying this entry now */
2112 mt = ch_malloc( sizeof(modtarget) );
2115 mt->mt_op = mi->mi_op;
2116 ldap_pvt_thread_mutex_init( &mt->mt_mutex );
2117 avl_insert( &si->si_mods, mt, sp_avl_cmp, avl_dup_error );
2118 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
2123 if (( have_psearches || si->si_logs ) && op->o_tag != LDAP_REQ_ADD )
2124 syncprov_matchops( op, opc, 1 );
2126 return SLAP_CB_CONTINUE;
2130 syncprov_op_extended( Operation *op, SlapReply *rs )
2132 if ( exop_is_write( op ))
2133 return syncprov_op_mod( op, rs );
2135 return SLAP_CB_CONTINUE;
2138 typedef struct searchstate {
2139 slap_overinst *ss_on;
2141 BerVarray ss_ctxcsn;
2144 #define SS_PRESENT 0x01
2145 #define SS_CHANGED 0x02
2150 syncprov_search_cleanup( Operation *op, SlapReply *rs )
2152 if ( rs->sr_ctrls ) {
2153 op->o_tmpfree( rs->sr_ctrls[0], op->o_tmpmemctx );
2154 op->o_tmpfree( rs->sr_ctrls, op->o_tmpmemctx );
2155 rs->sr_ctrls = NULL;
2160 typedef struct SyncOperationBuffer {
2164 AttributeName sob_extra; /* not always present */
2165 /* Further data allocated here */
2166 } SyncOperationBuffer;
2169 syncprov_detach_op( Operation *op, syncops *so, slap_overinst *on )
2171 SyncOperationBuffer *sopbuf2;
2176 GroupAssertion *g1, *g2;
2178 /* count the search attrs */
2179 for (i=0; op->ors_attrs && !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2180 alen += op->ors_attrs[i].an_name.bv_len + 1;
2182 /* Make a new copy of the operation */
2183 size = offsetof( SyncOperationBuffer, sob_extra ) +
2184 (i ? ( (i+1) * sizeof(AttributeName) + alen) : 0) +
2185 op->o_req_dn.bv_len + 1 +
2186 op->o_req_ndn.bv_len + 1 +
2187 op->o_ndn.bv_len + 1 +
2188 so->s_filterstr.bv_len + 1;
2189 sopbuf2 = ch_calloc( 1, size );
2190 op2 = &sopbuf2->sob_op;
2191 op2->o_hdr = &sopbuf2->sob_hdr;
2192 LDAP_SLIST_FIRST(&op2->o_extra) = &sopbuf2->sob_oe;
2194 /* Copy the fields we care about explicitly, leave the rest alone */
2195 *op2->o_hdr = *op->o_hdr;
2196 op2->o_tag = op->o_tag;
2197 op2->o_time = op->o_time;
2198 op2->o_bd = on->on_info->oi_origdb;
2199 op2->o_request = op->o_request;
2200 op2->o_managedsait = op->o_managedsait;
2201 LDAP_SLIST_FIRST(&op2->o_extra)->oe_key = on;
2202 LDAP_SLIST_NEXT(LDAP_SLIST_FIRST(&op2->o_extra), oe_next) = NULL;
2204 ptr = (char *) sopbuf2 + offsetof( SyncOperationBuffer, sob_extra );
2206 op2->ors_attrs = (AttributeName *) ptr;
2207 ptr = (char *) &op2->ors_attrs[i+1];
2208 for (i=0; !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2209 op2->ors_attrs[i] = op->ors_attrs[i];
2210 op2->ors_attrs[i].an_name.bv_val = ptr;
2211 ptr = lutil_strcopy( ptr, op->ors_attrs[i].an_name.bv_val ) + 1;
2213 BER_BVZERO( &op2->ors_attrs[i].an_name );
2216 op2->o_authz = op->o_authz;
2217 op2->o_ndn.bv_val = ptr;
2218 ptr = lutil_strcopy(ptr, op->o_ndn.bv_val) + 1;
2219 op2->o_dn = op2->o_ndn;
2220 op2->o_req_dn.bv_len = op->o_req_dn.bv_len;
2221 op2->o_req_dn.bv_val = ptr;
2222 ptr = lutil_strcopy(ptr, op->o_req_dn.bv_val) + 1;
2223 op2->o_req_ndn.bv_len = op->o_req_ndn.bv_len;
2224 op2->o_req_ndn.bv_val = ptr;
2225 ptr = lutil_strcopy(ptr, op->o_req_ndn.bv_val) + 1;
2226 op2->ors_filterstr.bv_val = ptr;
2227 strcpy( ptr, so->s_filterstr.bv_val );
2228 op2->ors_filterstr.bv_len = so->s_filterstr.bv_len;
2230 /* Skip the AND/GE clause that we stuck on in front */
2231 if ( so->s_flags & PS_FIX_FILTER ) {
2232 op2->ors_filter = op->ors_filter->f_and->f_next;
2233 so->s_flags ^= PS_FIX_FILTER;
2235 op2->ors_filter = op->ors_filter;
2237 op2->ors_filter = filter_dup( op2->ors_filter, NULL );
2240 /* Copy any cached group ACLs individually */
2241 op2->o_groups = NULL;
2242 for ( g1=op->o_groups; g1; g1=g1->ga_next ) {
2243 g2 = ch_malloc( sizeof(GroupAssertion) + g1->ga_len );
2245 strcpy( g2->ga_ndn, g1->ga_ndn );
2246 g2->ga_next = op2->o_groups;
2249 /* Don't allow any further group caching */
2250 op2->o_do_not_cache = 1;
2252 /* Add op2 to conn so abandon will find us */
2253 op->o_conn->c_n_ops_executing++;
2254 op->o_conn->c_n_ops_completed--;
2255 LDAP_STAILQ_INSERT_TAIL( &op->o_conn->c_ops, op2, o_next );
2256 so->s_flags |= PS_IS_DETACHED;
2258 /* Prevent anyone else from trying to send a result for this op */
2263 syncprov_search_response( Operation *op, SlapReply *rs )
2265 searchstate *ss = op->o_callback->sc_private;
2266 slap_overinst *on = ss->ss_on;
2267 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2268 sync_control *srs = op->o_controls[slap_cids.sc_LDAPsync];
2270 if ( rs->sr_type == REP_SEARCH || rs->sr_type == REP_SEARCHREF ) {
2272 /* If we got a referral without a referral object, there's
2273 * something missing that we cannot replicate. Just ignore it.
2274 * The consumer will abort because we didn't send the expected
2277 if ( !rs->sr_entry ) {
2278 assert( rs->sr_entry != NULL );
2279 Debug( LDAP_DEBUG_ANY, "bogus referral in context\n",0,0,0 );
2280 return SLAP_CB_CONTINUE;
2282 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryCSN );
2283 if ( a == NULL && rs->sr_operational_attrs != NULL ) {
2284 a = attr_find( rs->sr_operational_attrs, slap_schema.si_ad_entryCSN );
2288 sid = slap_parse_csn_sid( &a->a_nvals[0] );
2290 /* Don't send changed entries back to the originator */
2291 if ( sid == srs->sr_state.sid && srs->sr_state.numcsns ) {
2292 Debug( LDAP_DEBUG_SYNC,
2293 "Entry %s changed by peer, ignored\n",
2294 rs->sr_entry->e_name.bv_val, 0, 0 );
2295 return LDAP_SUCCESS;
2298 /* If not a persistent search */
2300 /* Make sure entry is less than the snapshot'd contextCSN */
2301 for ( i=0; i<ss->ss_numcsns; i++ ) {
2302 if ( sid == ss->ss_sids[i] && ber_bvcmp( &a->a_nvals[0],
2303 &ss->ss_ctxcsn[i] ) > 0 ) {
2304 Debug( LDAP_DEBUG_SYNC,
2305 "Entry %s CSN %s greater than snapshot %s\n",
2306 rs->sr_entry->e_name.bv_val,
2307 a->a_nvals[0].bv_val,
2308 ss->ss_ctxcsn[i].bv_val );
2309 return LDAP_SUCCESS;
2314 /* Don't send old entries twice */
2315 if ( srs->sr_state.ctxcsn ) {
2316 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2317 if ( sid == srs->sr_state.sids[i] &&
2318 ber_bvcmp( &a->a_nvals[0],
2319 &srs->sr_state.ctxcsn[i] )<= 0 ) {
2320 Debug( LDAP_DEBUG_SYNC,
2321 "Entry %s CSN %s older or equal to ctx %s\n",
2322 rs->sr_entry->e_name.bv_val,
2323 a->a_nvals[0].bv_val,
2324 srs->sr_state.ctxcsn[i].bv_val );
2325 return LDAP_SUCCESS;
2330 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2332 rs->sr_ctrls[1] = NULL;
2333 rs->sr_flags |= REP_CTRLS_MUSTBEFREED;
2334 /* If we're in delta-sync mode, always send a cookie */
2335 if ( si->si_nopres && si->si_usehint && a ) {
2336 struct berval cookie;
2337 slap_compose_sync_cookie( op, &cookie, a->a_nvals, srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
2338 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2339 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 1, &cookie );
2341 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2342 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 0, NULL );
2344 } else if ( rs->sr_type == REP_RESULT && rs->sr_err == LDAP_SUCCESS ) {
2345 struct berval cookie = BER_BVNULL;
2347 if ( ( ss->ss_flags & SS_CHANGED ) &&
2348 ss->ss_ctxcsn && !BER_BVISNULL( &ss->ss_ctxcsn[0] )) {
2349 slap_compose_sync_cookie( op, &cookie, ss->ss_ctxcsn,
2350 srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
2352 Debug( LDAP_DEBUG_SYNC, "syncprov_search_response: cookie=%s\n", cookie.bv_val, 0, 0 );
2355 /* Is this a regular refresh?
2356 * Note: refresh never gets here if there were no changes
2359 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2361 rs->sr_ctrls[1] = NULL;
2362 rs->sr_err = syncprov_done_ctrl( op, rs, rs->sr_ctrls,
2363 0, 1, &cookie, ( ss->ss_flags & SS_PRESENT ) ? LDAP_SYNC_REFRESH_PRESENTS :
2364 LDAP_SYNC_REFRESH_DELETES );
2365 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2367 /* It's RefreshAndPersist, transition to Persist phase */
2368 syncprov_sendinfo( op, rs, ( ss->ss_flags & SS_PRESENT ) ?
2369 LDAP_TAG_SYNC_REFRESH_PRESENT : LDAP_TAG_SYNC_REFRESH_DELETE,
2370 ( ss->ss_flags & SS_CHANGED ) ? &cookie : NULL,
2372 if ( !BER_BVISNULL( &cookie ))
2373 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2375 /* Detach this Op from frontend control */
2376 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
2378 /* But not if this connection was closed along the way */
2379 if ( op->o_abandon ) {
2380 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2381 /* syncprov_ab_cleanup will free this syncop */
2382 return SLAPD_ABANDON;
2385 ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex );
2386 /* Turn off the refreshing flag */
2387 ss->ss_so->s_flags ^= PS_IS_REFRESHING;
2389 syncprov_detach_op( op, ss->ss_so, on );
2391 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2393 /* If there are queued responses, fire them off */
2394 if ( ss->ss_so->s_res )
2395 syncprov_qstart( ss->ss_so );
2396 ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
2399 return LDAP_SUCCESS;
2403 return SLAP_CB_CONTINUE;
2407 syncprov_op_search( Operation *op, SlapReply *rs )
2409 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2410 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2412 int gotstate = 0, changed = 0, do_present = 0;
2413 syncops *sop = NULL;
2417 int i, *sids, numcsns;
2418 struct berval mincsn, maxcsn;
2421 if ( !(op->o_sync_mode & SLAP_SYNC_REFRESH) ) return SLAP_CB_CONTINUE;
2423 if ( op->ors_deref & LDAP_DEREF_SEARCHING ) {
2424 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR, "illegal value for derefAliases" );
2428 srs = op->o_controls[slap_cids.sc_LDAPsync];
2430 /* If this is a persistent search, set it up right away */
2431 if ( op->o_sync_mode & SLAP_SYNC_PERSIST ) {
2441 so.s_flags = PS_IS_REFRESHING | PS_FIND_BASE;
2442 /* syncprov_findbase expects to be called as a callback... */
2443 sc.sc_private = &opc;
2445 ldap_pvt_thread_mutex_init( &so.s_mutex );
2446 cb = op->o_callback;
2447 op->o_callback = ≻
2448 rs->sr_err = syncprov_findbase( op, &fc );
2449 op->o_callback = cb;
2450 ldap_pvt_thread_mutex_destroy( &so.s_mutex );
2452 if ( rs->sr_err != LDAP_SUCCESS ) {
2453 send_ldap_result( op, rs );
2456 sop = ch_malloc( sizeof( syncops ));
2458 ldap_pvt_thread_mutex_init( &sop->s_mutex );
2459 sop->s_rid = srs->sr_state.rid;
2460 sop->s_sid = srs->sr_state.sid;
2463 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2464 while ( si->si_active ) {
2465 /* Wait for active mods to finish before proceeding, as they
2466 * may already have inspected the si_ops list looking for
2467 * consumers to replicate the change to. Using the log
2468 * doesn't help, as we may finish playing it before the
2469 * active mods gets added to it.
2471 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2472 if ( slapd_shutdown )
2473 return SLAPD_ABANDON;
2474 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
2475 ldap_pvt_thread_yield();
2476 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2478 sop->s_next = si->si_ops;
2480 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2483 /* snapshot the ctxcsn */
2484 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2485 numcsns = si->si_numcsns;
2487 ber_bvarray_dup_x( &ctxcsn, si->si_ctxcsn, op->o_tmpmemctx );
2488 sids = op->o_tmpalloc( numcsns * sizeof(int), op->o_tmpmemctx );
2489 for ( i=0; i<numcsns; i++ )
2490 sids[i] = si->si_sids[i];
2495 dirty = si->si_dirty;
2496 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2498 /* If we have a cookie, handle the PRESENT lookups */
2499 if ( srs->sr_state.ctxcsn ) {
2503 /* If we don't have any CSN of our own yet, pretend nothing
2509 if ( !si->si_nopres )
2510 do_present = SS_PRESENT;
2512 /* If there are SIDs we don't recognize in the cookie, drop them */
2513 for (i=0; i<srs->sr_state.numcsns; ) {
2514 for (j=0; j<numcsns; j++) {
2515 if ( srs->sr_state.sids[i] == sids[j] ) {
2520 if ( j == numcsns ) {
2521 struct berval tmp = srs->sr_state.ctxcsn[i];
2522 j = srs->sr_state.numcsns - 1;
2523 srs->sr_state.ctxcsn[i] = srs->sr_state.ctxcsn[j];
2525 srs->sr_state.ctxcsn[j] = tmp;
2526 srs->sr_state.numcsns = j;
2527 srs->sr_state.sids[i] = srs->sr_state.sids[j];
2533 /* Find the smallest CSN which differs from contextCSN */
2536 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2537 for ( j=0; j<numcsns; j++ ) {
2538 if ( srs->sr_state.sids[i] != sids[j] )
2540 if ( BER_BVISEMPTY( &maxcsn ) || ber_bvcmp( &maxcsn,
2541 &srs->sr_state.ctxcsn[i] ) < 0 ) {
2542 maxcsn = srs->sr_state.ctxcsn[i];
2544 if ( ber_bvcmp( &srs->sr_state.ctxcsn[i], &ctxcsn[j] ) < 0) {
2545 if ( BER_BVISEMPTY( &mincsn ) || ber_bvcmp( &mincsn,
2546 &srs->sr_state.ctxcsn[i] ) > 0 ) {
2547 mincsn = srs->sr_state.ctxcsn[i];
2552 if ( BER_BVISEMPTY( &mincsn ))
2555 /* If nothing has changed, shortcut it */
2556 if ( srs->sr_state.numcsns == numcsns ) {
2558 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2559 for ( j=0; j<numcsns; j++ ) {
2560 if ( srs->sr_state.sids[i] != sids[j] )
2562 newer = ber_bvcmp( &srs->sr_state.ctxcsn[i], &ctxcsn[j] );
2563 /* If our state is newer, tell consumer about changes */
2565 changed = SS_CHANGED;
2566 else if ( newer > 0 ) {
2567 /* our state is older, complain to consumer */
2568 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
2569 rs->sr_text = "consumer state is newer than provider!";
2572 syncops **sp = &si->si_ops;
2574 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2575 while ( *sp != sop )
2576 sp = &(*sp)->s_next;
2578 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2581 rs->sr_ctrls = NULL;
2582 send_ldap_result( op, rs );
2590 if ( !changed && !dirty ) {
2592 no_change: if ( !(op->o_sync_mode & SLAP_SYNC_PERSIST) ) {
2593 LDAPControl *ctrls[2];
2597 syncprov_done_ctrl( op, rs, ctrls, 0, 0,
2598 NULL, LDAP_SYNC_REFRESH_DELETES );
2599 rs->sr_ctrls = ctrls;
2600 rs->sr_err = LDAP_SUCCESS;
2601 send_ldap_result( op, rs );
2602 rs->sr_ctrls = NULL;
2608 /* consumer doesn't have the right number of CSNs */
2609 changed = SS_CHANGED;
2611 /* Do we have a sessionlog for this search? */
2614 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
2615 /* Are there any log entries, and is the consumer state
2616 * present in the session log?
2618 if ( sl->sl_num > 0 && ber_bvcmp( &mincsn, &sl->sl_mincsn ) >= 0 ) {
2620 /* mutex is unlocked in playlog */
2621 syncprov_playlog( op, rs, sl, srs, ctxcsn, numcsns, sids );
2623 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
2626 /* Is the CSN still present in the database? */
2627 if ( syncprov_findcsn( op, FIND_CSN ) != LDAP_SUCCESS ) {
2628 /* No, so a reload is required */
2629 /* the 2.2 consumer doesn't send this hint */
2630 if ( si->si_usehint && srs->sr_rhint == 0 ) {
2632 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2634 op->o_tmpfree( sids, op->o_tmpmemctx );
2635 rs->sr_err = LDAP_SYNC_REFRESH_REQUIRED;
2636 rs->sr_text = "sync cookie is stale";
2639 if ( srs->sr_state.ctxcsn ) {
2640 ber_bvarray_free_x( srs->sr_state.ctxcsn, op->o_tmpmemctx );
2641 srs->sr_state.ctxcsn = NULL;
2643 if ( srs->sr_state.sids ) {
2644 slap_sl_free( srs->sr_state.sids, op->o_tmpmemctx );
2645 srs->sr_state.sids = NULL;
2647 srs->sr_state.numcsns = 0;
2650 /* If changed and doing Present lookup, send Present UUIDs */
2651 if ( do_present && syncprov_findcsn( op, FIND_PRESENT ) !=
2654 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2656 op->o_tmpfree( sids, op->o_tmpmemctx );
2661 /* No consumer state, assume something has changed */
2662 changed = SS_CHANGED;
2666 /* Append CSN range to search filter, save original filter
2667 * for persistent search evaluation
2670 sop->s_filterstr= op->ors_filterstr;
2673 /* If something changed, find the changes */
2674 if ( gotstate && ( changed || dirty ) ) {
2675 Filter *fand, *fava;
2677 fand = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2678 fand->f_choice = LDAP_FILTER_AND;
2679 fand->f_next = NULL;
2680 fava = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2682 fava->f_choice = LDAP_FILTER_GE;
2683 fava->f_ava = op->o_tmpalloc( sizeof(AttributeAssertion), op->o_tmpmemctx );
2684 fava->f_ava->aa_desc = slap_schema.si_ad_entryCSN;
2685 #ifdef LDAP_COMP_MATCH
2686 fava->f_ava->aa_cf = NULL;
2688 ber_dupbv_x( &fava->f_ava->aa_value, &mincsn, op->o_tmpmemctx );
2689 fava->f_next = op->ors_filter;
2691 ldap_pvt_thread_mutex_lock( &sop->s_mutex );
2692 op->ors_filter = fand;
2693 filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2695 sop->s_flags |= PS_FIX_FILTER;
2696 ldap_pvt_thread_mutex_unlock( &sop->s_mutex );
2700 /* Let our callback add needed info to returned entries */
2701 cb = op->o_tmpcalloc(1, sizeof(slap_callback)+sizeof(searchstate), op->o_tmpmemctx);
2702 ss = (searchstate *)(cb+1);
2705 ss->ss_flags = do_present | changed;
2706 ss->ss_ctxcsn = ctxcsn;
2707 ss->ss_numcsns = numcsns;
2709 cb->sc_response = syncprov_search_response;
2710 cb->sc_cleanup = syncprov_search_cleanup;
2711 cb->sc_private = ss;
2712 cb->sc_next = op->o_callback;
2713 op->o_callback = cb;
2715 /* If this is a persistent search and no changes were reported during
2716 * the refresh phase, just invoke the response callback to transition
2717 * us into persist phase
2719 if ( !changed && !dirty ) {
2720 rs->sr_err = LDAP_SUCCESS;
2721 rs->sr_nentries = 0;
2722 send_ldap_result( op, rs );
2725 return SLAP_CB_CONTINUE;
2729 syncprov_operational(
2733 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2734 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2736 /* This prevents generating unnecessarily; frontend will strip
2737 * any statically stored copy.
2739 if ( op->o_sync != SLAP_CONTROL_NONE )
2740 return SLAP_CB_CONTINUE;
2742 if ( rs->sr_entry &&
2743 dn_match( &rs->sr_entry->e_nname, &si->si_contextdn )) {
2745 if ( SLAP_OPATTRS( rs->sr_attr_flags ) ||
2746 ad_inlist( slap_schema.si_ad_contextCSN, rs->sr_attrs )) {
2747 Attribute *a, **ap = NULL;
2749 for ( a=rs->sr_entry->e_attrs; a; a=a->a_next ) {
2750 if ( a->a_desc == slap_schema.si_ad_contextCSN )
2754 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2755 if ( si->si_ctxcsn ) {
2757 for ( ap = &rs->sr_operational_attrs; *ap;
2758 ap=&(*ap)->a_next );
2760 a = attr_alloc( slap_schema.si_ad_contextCSN );
2765 if ( rs_ensure_entry_modifiable( op, rs, on )) {
2766 a = attr_find( rs->sr_entry->e_attrs,
2767 slap_schema.si_ad_contextCSN );
2769 if ( a->a_nvals != a->a_vals ) {
2770 ber_bvarray_free( a->a_nvals );
2773 ber_bvarray_free( a->a_vals );
2777 attr_valadd( a, si->si_ctxcsn, si->si_ctxcsn, si->si_numcsns );
2779 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2782 return SLAP_CB_CONTINUE;
2792 static ConfigDriver sp_cf_gen;
2794 static ConfigTable spcfg[] = {
2795 { "syncprov-checkpoint", "ops> <minutes", 3, 3, 0, ARG_MAGIC|SP_CHKPT,
2796 sp_cf_gen, "( OLcfgOvAt:1.1 NAME 'olcSpCheckpoint' "
2797 "DESC 'ContextCSN checkpoint interval in ops and minutes' "
2798 "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
2799 { "syncprov-sessionlog", "ops", 2, 2, 0, ARG_INT|ARG_MAGIC|SP_SESSL,
2800 sp_cf_gen, "( OLcfgOvAt:1.2 NAME 'olcSpSessionlog' "
2801 "DESC 'Session log size in ops' "
2802 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
2803 { "syncprov-nopresent", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_NOPRES,
2804 sp_cf_gen, "( OLcfgOvAt:1.3 NAME 'olcSpNoPresent' "
2805 "DESC 'Omit Present phase processing' "
2806 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2807 { "syncprov-reloadhint", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_USEHINT,
2808 sp_cf_gen, "( OLcfgOvAt:1.4 NAME 'olcSpReloadHint' "
2809 "DESC 'Observe Reload Hint in Request control' "
2810 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2811 { NULL, NULL, 0, 0, 0, ARG_IGNORED }
2814 static ConfigOCs spocs[] = {
2815 { "( OLcfgOvOc:1.1 "
2816 "NAME 'olcSyncProvConfig' "
2817 "DESC 'SyncRepl Provider configuration' "
2818 "SUP olcOverlayConfig "
2819 "MAY ( olcSpCheckpoint "
2820 "$ olcSpSessionlog "
2822 "$ olcSpReloadHint "
2824 Cft_Overlay, spcfg },
2829 sp_cf_gen(ConfigArgs *c)
2831 slap_overinst *on = (slap_overinst *)c->bi;
2832 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2835 if ( c->op == SLAP_CONFIG_EMIT ) {
2836 switch ( c->type ) {
2838 if ( si->si_chkops || si->si_chktime ) {
2840 /* we assume si_chktime is a multiple of 60
2841 * because the parsed value was originally
2842 * multiplied by 60 */
2843 bv.bv_len = snprintf( c->cr_msg, sizeof( c->cr_msg ),
2844 "%d %d", si->si_chkops, si->si_chktime/60 );
2845 if ( bv.bv_len >= sizeof( c->cr_msg ) ) {
2848 bv.bv_val = c->cr_msg;
2849 value_add_one( &c->rvalue_vals, &bv );
2856 if ( si->si_logs ) {
2857 c->value_int = si->si_logs->sl_size;
2863 if ( si->si_nopres ) {
2870 if ( si->si_usehint ) {
2878 } else if ( c->op == LDAP_MOD_DELETE ) {
2879 switch ( c->type ) {
2886 si->si_logs->sl_size = 0;
2888 rc = LDAP_NO_SUCH_ATTRIBUTE;
2891 if ( si->si_nopres )
2894 rc = LDAP_NO_SUCH_ATTRIBUTE;
2897 if ( si->si_usehint )
2900 rc = LDAP_NO_SUCH_ATTRIBUTE;
2905 switch ( c->type ) {
2907 if ( lutil_atoi( &si->si_chkops, c->argv[1] ) != 0 ) {
2908 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint ops # \"%s\"",
2909 c->argv[0], c->argv[1] );
2910 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2911 "%s: %s\n", c->log, c->cr_msg, 0 );
2912 return ARG_BAD_CONF;
2914 if ( si->si_chkops <= 0 ) {
2915 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint ops # \"%d\"",
2916 c->argv[0], si->si_chkops );
2917 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2918 "%s: %s\n", c->log, c->cr_msg, 0 );
2919 return ARG_BAD_CONF;
2921 if ( lutil_atoi( &si->si_chktime, c->argv[2] ) != 0 ) {
2922 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint time \"%s\"",
2923 c->argv[0], c->argv[1] );
2924 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2925 "%s: %s\n", c->log, c->cr_msg, 0 );
2926 return ARG_BAD_CONF;
2928 if ( si->si_chktime <= 0 ) {
2929 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint time \"%d\"",
2930 c->argv[0], si->si_chkops );
2931 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2932 "%s: %s\n", c->log, c->cr_msg, 0 );
2933 return ARG_BAD_CONF;
2935 si->si_chktime *= 60;
2939 int size = c->value_int;
2942 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s size %d is negative",
2944 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2945 "%s: %s\n", c->log, c->cr_msg, 0 );
2946 return ARG_BAD_CONF;
2950 sl = ch_malloc( sizeof( sessionlog ) + LDAP_PVT_CSNSTR_BUFSIZE );
2951 sl->sl_mincsn.bv_val = (char *)(sl+1);
2952 sl->sl_mincsn.bv_len = 0;
2954 sl->sl_head = sl->sl_tail = NULL;
2955 ldap_pvt_thread_mutex_init( &sl->sl_mutex );
2962 si->si_nopres = c->value_int;
2965 si->si_usehint = c->value_int;
2971 /* ITS#3456 we cannot run this search on the main thread, must use a
2972 * child thread in order to insure we have a big enough stack.
2979 syncprov_findcsn( ptr, FIND_MAXCSN );
2983 /* Read any existing contextCSN from the underlying db.
2984 * Then search for any entries newer than that. If no value exists,
2985 * just generate it. Cache whatever result.
2993 slap_overinst *on = (slap_overinst *) be->bd_info;
2994 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2996 Connection conn = { 0 };
2997 OperationBuffer opbuf;
3002 void *thrctx = NULL;
3004 if ( !SLAP_LASTMOD( be )) {
3005 Debug( LDAP_DEBUG_ANY,
3006 "syncprov_db_open: invalid config, lastmod must be enabled\n", 0, 0, 0 );
3010 if ( slapMode & SLAP_TOOL_MODE ) {
3014 rc = overlay_register_control( be, LDAP_CONTROL_SYNC );
3019 thrctx = ldap_pvt_thread_pool_context();
3020 connection_fake_init2( &conn, &opbuf, thrctx, 0 );
3023 op->o_dn = be->be_rootdn;
3024 op->o_ndn = be->be_rootndn;
3026 if ( SLAP_SYNC_SUBENTRY( be )) {
3027 build_new_dn( &si->si_contextdn, be->be_nsuffix,
3028 (struct berval *)&slap_ldapsync_cn_bv, NULL );
3030 si->si_contextdn = be->be_nsuffix[0];
3032 rc = overlay_entry_get_ov( op, &si->si_contextdn, NULL,
3033 slap_schema.si_ad_contextCSN, 0, &e, on );
3036 ldap_pvt_thread_t tid;
3038 a = attr_find( e->e_attrs, slap_schema.si_ad_contextCSN );
3040 ber_bvarray_dup_x( &si->si_ctxcsn, a->a_vals, NULL );
3041 si->si_numcsns = a->a_numvals;
3042 si->si_sids = slap_parse_csn_sids( si->si_ctxcsn, a->a_numvals, NULL );
3044 overlay_entry_release_ov( op, e, 0, on );
3045 if ( si->si_ctxcsn && !SLAP_DBCLEAN( be )) {
3046 op->o_req_dn = be->be_suffix[0];
3047 op->o_req_ndn = be->be_nsuffix[0];
3048 op->ors_scope = LDAP_SCOPE_SUBTREE;
3049 ldap_pvt_thread_create( &tid, 0, syncprov_db_otask, op );
3050 ldap_pvt_thread_join( tid, NULL );
3054 /* Didn't find a contextCSN, should we generate one? */
3055 if ( !si->si_ctxcsn ) {
3056 char csnbuf[ LDAP_PVT_CSNSTR_BUFSIZE ];
3059 if ( SLAP_SYNC_SHADOW( op->o_bd )) {
3060 /* If we're also a consumer, then don't generate anything.
3061 * Wait for our provider to send it to us, or for a local
3062 * modify if we have multimaster.
3066 csn.bv_val = csnbuf;
3067 csn.bv_len = sizeof( csnbuf );
3068 slap_get_csn( op, &csn, 0 );
3069 value_add_one( &si->si_ctxcsn, &csn );
3071 si->si_sids = ch_malloc( sizeof(int) );
3072 si->si_sids[0] = slap_serverID;
3074 /* make sure we do a checkpoint on close */
3078 /* Initialize the sessionlog mincsn */
3079 if ( si->si_logs && si->si_numcsns ) {
3080 sessionlog *sl = si->si_logs;
3082 /* If there are multiple, find the newest */
3083 for ( i=0; i < si->si_numcsns; i++ ) {
3084 if ( ber_bvcmp( &sl->sl_mincsn, &si->si_ctxcsn[i] ) < 0 ) {
3085 AC_MEMCPY( sl->sl_mincsn.bv_val, si->si_ctxcsn[i].bv_val,
3086 si->si_ctxcsn[i].bv_len );
3087 sl->sl_mincsn.bv_len = si->si_ctxcsn[i].bv_len;
3093 op->o_bd->bd_info = (BackendInfo *)on;
3097 /* Write the current contextCSN into the underlying db.
3105 slap_overinst *on = (slap_overinst *) be->bd_info;
3106 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3107 #ifdef SLAP_CONFIG_DELETE
3108 syncops *so, *sonext;
3109 #endif /* SLAP_CONFIG_DELETE */
3111 if ( slapMode & SLAP_TOOL_MODE ) {
3114 if ( si->si_numops ) {
3115 Connection conn = {0};
3116 OperationBuffer opbuf;
3120 thrctx = ldap_pvt_thread_pool_context();
3121 connection_fake_init2( &conn, &opbuf, thrctx, 0 );
3124 op->o_dn = be->be_rootdn;
3125 op->o_ndn = be->be_rootndn;
3126 syncprov_checkpoint( op, on );
3129 #ifdef SLAP_CONFIG_DELETE
3130 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
3131 for ( so=si->si_ops, sonext=so; so; so=sonext ) {
3132 SlapReply rs = {REP_RESULT};
3133 rs.sr_err = LDAP_UNAVAILABLE;
3134 send_ldap_result( so->s_op, &rs );
3136 syncprov_drop_psearch( so, 0);
3139 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
3140 overlay_unregister_control( be, LDAP_CONTROL_SYNC );
3141 #endif /* SLAP_CONFIG_DELETE */
3152 slap_overinst *on = (slap_overinst *)be->bd_info;
3153 syncprov_info_t *si;
3155 if ( SLAP_ISGLOBALOVERLAY( be ) ) {
3156 Debug( LDAP_DEBUG_ANY,
3157 "syncprov must be instantiated within a database.\n",
3162 si = ch_calloc(1, sizeof(syncprov_info_t));
3163 on->on_bi.bi_private = si;
3164 ldap_pvt_thread_rdwr_init( &si->si_csn_rwlock );
3165 ldap_pvt_thread_mutex_init( &si->si_ops_mutex );
3166 ldap_pvt_thread_mutex_init( &si->si_mods_mutex );
3167 ldap_pvt_thread_mutex_init( &si->si_resp_mutex );
3169 csn_anlist[0].an_desc = slap_schema.si_ad_entryCSN;
3170 csn_anlist[0].an_name = slap_schema.si_ad_entryCSN->ad_cname;
3171 csn_anlist[1].an_desc = slap_schema.si_ad_entryUUID;
3172 csn_anlist[1].an_name = slap_schema.si_ad_entryUUID->ad_cname;
3174 uuid_anlist[0].an_desc = slap_schema.si_ad_entryUUID;
3175 uuid_anlist[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
3181 syncprov_db_destroy(
3186 slap_overinst *on = (slap_overinst *)be->bd_info;
3187 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3190 if ( si->si_logs ) {
3191 slog_entry *se = si->si_logs->sl_head;
3194 slog_entry *se_next = se->se_next;
3199 ldap_pvt_thread_mutex_destroy(&si->si_logs->sl_mutex);
3200 ch_free( si->si_logs );
3202 if ( si->si_ctxcsn )
3203 ber_bvarray_free( si->si_ctxcsn );
3205 ch_free( si->si_sids );
3206 ldap_pvt_thread_mutex_destroy( &si->si_resp_mutex );
3207 ldap_pvt_thread_mutex_destroy( &si->si_mods_mutex );
3208 ldap_pvt_thread_mutex_destroy( &si->si_ops_mutex );
3209 ldap_pvt_thread_rdwr_destroy( &si->si_csn_rwlock );
3216 static int syncprov_parseCtrl (
3222 BerElementBuffer berbuf;
3223 BerElement *ber = (BerElement *)&berbuf;
3226 struct berval cookie = BER_BVNULL;
3230 if ( op->o_sync != SLAP_CONTROL_NONE ) {
3231 rs->sr_text = "Sync control specified multiple times";
3232 return LDAP_PROTOCOL_ERROR;
3235 if ( op->o_pagedresults != SLAP_CONTROL_NONE ) {
3236 rs->sr_text = "Sync control specified with pagedResults control";
3237 return LDAP_PROTOCOL_ERROR;
3240 if ( BER_BVISNULL( &ctrl->ldctl_value ) ) {
3241 rs->sr_text = "Sync control value is absent";
3242 return LDAP_PROTOCOL_ERROR;
3245 if ( BER_BVISEMPTY( &ctrl->ldctl_value ) ) {
3246 rs->sr_text = "Sync control value is empty";
3247 return LDAP_PROTOCOL_ERROR;
3250 /* Parse the control value
3251 * syncRequestValue ::= SEQUENCE {
3256 * refreshAndPersist (3)
3258 * cookie syncCookie OPTIONAL
3262 ber_init2( ber, &ctrl->ldctl_value, 0 );
3264 if ( (tag = ber_scanf( ber, "{i" /*}*/, &mode )) == LBER_ERROR ) {
3265 rs->sr_text = "Sync control : mode decoding error";
3266 return LDAP_PROTOCOL_ERROR;
3270 case LDAP_SYNC_REFRESH_ONLY:
3271 mode = SLAP_SYNC_REFRESH;
3273 case LDAP_SYNC_REFRESH_AND_PERSIST:
3274 mode = SLAP_SYNC_REFRESH_AND_PERSIST;
3277 rs->sr_text = "Sync control : unknown update mode";
3278 return LDAP_PROTOCOL_ERROR;
3281 tag = ber_peek_tag( ber, &len );
3283 if ( tag == LDAP_TAG_SYNC_COOKIE ) {
3284 if (( ber_scanf( ber, /*{*/ "m", &cookie )) == LBER_ERROR ) {
3285 rs->sr_text = "Sync control : cookie decoding error";
3286 return LDAP_PROTOCOL_ERROR;
3288 tag = ber_peek_tag( ber, &len );
3290 if ( tag == LDAP_TAG_RELOAD_HINT ) {
3291 if (( ber_scanf( ber, /*{*/ "b", &rhint )) == LBER_ERROR ) {
3292 rs->sr_text = "Sync control : rhint decoding error";
3293 return LDAP_PROTOCOL_ERROR;
3296 if (( ber_scanf( ber, /*{*/ "}")) == LBER_ERROR ) {
3297 rs->sr_text = "Sync control : decoding error";
3298 return LDAP_PROTOCOL_ERROR;
3300 sr = op->o_tmpcalloc( 1, sizeof(struct sync_control), op->o_tmpmemctx );
3301 sr->sr_rhint = rhint;
3302 if (!BER_BVISNULL(&cookie)) {
3303 ber_dupbv_x( &sr->sr_state.octet_str, &cookie, op->o_tmpmemctx );
3304 /* If parse fails, pretend no cookie was sent */
3305 if ( slap_parse_sync_cookie( &sr->sr_state, op->o_tmpmemctx ) ||
3306 sr->sr_state.rid == -1 ) {
3307 if ( sr->sr_state.ctxcsn ) {
3308 ber_bvarray_free_x( sr->sr_state.ctxcsn, op->o_tmpmemctx );
3309 sr->sr_state.ctxcsn = NULL;
3311 sr->sr_state.numcsns = 0;
3315 op->o_controls[slap_cids.sc_LDAPsync] = sr;
3317 op->o_sync = ctrl->ldctl_iscritical
3318 ? SLAP_CONTROL_CRITICAL
3319 : SLAP_CONTROL_NONCRITICAL;
3321 op->o_sync_mode |= mode; /* o_sync_mode shares o_sync */
3323 return LDAP_SUCCESS;
3326 /* This overlay is set up for dynamic loading via moduleload. For static
3327 * configuration, you'll need to arrange for the slap_overinst to be
3328 * initialized and registered by some other function inside slapd.
3331 static slap_overinst syncprov;
3334 syncprov_initialize()
3338 rc = register_supported_control( LDAP_CONTROL_SYNC,
3339 SLAP_CTRL_SEARCH, NULL,
3340 syncprov_parseCtrl, &slap_cids.sc_LDAPsync );
3341 if ( rc != LDAP_SUCCESS ) {
3342 Debug( LDAP_DEBUG_ANY,
3343 "syncprov_init: Failed to register control %d\n", rc, 0, 0 );
3347 syncprov.on_bi.bi_type = "syncprov";
3348 syncprov.on_bi.bi_db_init = syncprov_db_init;
3349 syncprov.on_bi.bi_db_destroy = syncprov_db_destroy;
3350 syncprov.on_bi.bi_db_open = syncprov_db_open;
3351 syncprov.on_bi.bi_db_close = syncprov_db_close;
3353 syncprov.on_bi.bi_op_abandon = syncprov_op_abandon;
3354 syncprov.on_bi.bi_op_cancel = syncprov_op_abandon;
3356 syncprov.on_bi.bi_op_add = syncprov_op_mod;
3357 syncprov.on_bi.bi_op_compare = syncprov_op_compare;
3358 syncprov.on_bi.bi_op_delete = syncprov_op_mod;
3359 syncprov.on_bi.bi_op_modify = syncprov_op_mod;
3360 syncprov.on_bi.bi_op_modrdn = syncprov_op_mod;
3361 syncprov.on_bi.bi_op_search = syncprov_op_search;
3362 syncprov.on_bi.bi_extended = syncprov_op_extended;
3363 syncprov.on_bi.bi_operational = syncprov_operational;
3365 syncprov.on_bi.bi_cf_ocs = spocs;
3367 generic_filter.f_desc = slap_schema.si_ad_objectClass;
3369 rc = config_register_schema( spcfg, spocs );
3370 if ( rc ) return rc;
3372 return overlay_register( &syncprov );
3375 #if SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC
3377 init_module( int argc, char *argv[] )
3379 return syncprov_initialize();
3381 #endif /* SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC */
3383 #endif /* defined(SLAPD_OVER_SYNCPROV) */