2 /* syncprov.c - syncrepl provider */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2004-2014 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 {
123 ldap_pvt_thread_mutex_t sl_mutex;
126 /* The main state for this overlay */
127 typedef struct syncprov_info_t {
129 struct berval si_contextdn;
130 BerVarray si_ctxcsn; /* ldapsync context */
133 int si_chkops; /* checkpointing info */
135 int si_numops; /* number of ops since last checkpoint */
136 int si_nopres; /* Skip present phase */
137 int si_usehint; /* use reload hint */
138 int si_active; /* True if there are active mods */
139 int si_dirty; /* True if the context is dirty, i.e changes
140 * have been made without updating the csn. */
141 time_t si_chklast; /* time of last checkpoint */
142 Avlnode *si_mods; /* entries being modified */
144 ldap_pvt_thread_rdwr_t si_csn_rwlock;
145 ldap_pvt_thread_mutex_t si_ops_mutex;
146 ldap_pvt_thread_mutex_t si_mods_mutex;
147 ldap_pvt_thread_mutex_t si_resp_mutex;
150 typedef struct opcookie {
152 syncmatches *smatches;
155 struct berval sdn; /* DN of entry, for deletes */
157 struct berval suuid; /* UUID of entry */
158 struct berval sctxcsn;
159 short osid; /* sid of op csn */
160 short rsid; /* sid of relay */
161 short sreference; /* Is the entry a reference? */
164 typedef struct mutexint {
165 ldap_pvt_thread_mutex_t mi_mutex;
169 typedef struct fbase_cookie {
170 struct berval *fdn; /* DN of a modified entry, for scope testing */
171 syncops *fss; /* persistent search we're testing against */
172 int fbase; /* if TRUE we found the search base and it's still valid */
173 int fscope; /* if TRUE then fdn is within the psearch scope */
176 static AttributeName csn_anlist[3];
177 static AttributeName uuid_anlist[2];
179 /* Build a LDAPsync intermediate state control */
185 int entry_sync_state,
189 struct berval *cookie )
194 BerElementBuffer berbuf;
195 BerElement *ber = (BerElement *)&berbuf;
198 struct berval entryuuid_bv = BER_BVNULL;
200 ber_init2( ber, 0, LBER_USE_DER );
201 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
203 for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
204 AttributeDescription *desc = a->a_desc;
205 if ( desc == slap_schema.si_ad_entryUUID ) {
206 entryuuid_bv = a->a_nvals[0];
211 /* FIXME: what if entryuuid is NULL or empty ? */
213 if ( send_cookie && cookie ) {
214 ber_printf( ber, "{eOON}",
215 entry_sync_state, &entryuuid_bv, cookie );
217 ber_printf( ber, "{eON}",
218 entry_sync_state, &entryuuid_bv );
221 ret = ber_flatten2( ber, &bv, 0 );
223 cp = op->o_tmpalloc( sizeof( LDAPControl ) + bv.bv_len, op->o_tmpmemctx );
224 cp->ldctl_oid = LDAP_CONTROL_SYNC_STATE;
225 cp->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
226 cp->ldctl_value.bv_val = (char *)&cp[1];
227 cp->ldctl_value.bv_len = bv.bv_len;
228 AC_MEMCPY( cp->ldctl_value.bv_val, bv.bv_val, bv.bv_len );
229 ctrls[num_ctrls] = cp;
234 Debug( LDAP_DEBUG_TRACE,
235 "slap_build_sync_ctrl: ber_flatten2 failed (%d)\n",
237 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
244 /* Build a LDAPsync final state control */
252 struct berval *cookie,
256 BerElementBuffer berbuf;
257 BerElement *ber = (BerElement *)&berbuf;
261 ber_init2( ber, NULL, LBER_USE_DER );
262 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
264 ber_printf( ber, "{" );
265 if ( send_cookie && cookie ) {
266 ber_printf( ber, "O", cookie );
268 if ( refreshDeletes == LDAP_SYNC_REFRESH_DELETES ) {
269 ber_printf( ber, "b", refreshDeletes );
271 ber_printf( ber, "N}" );
273 ret = ber_flatten2( ber, &bv, 0 );
275 cp = op->o_tmpalloc( sizeof( LDAPControl ) + bv.bv_len, op->o_tmpmemctx );
276 cp->ldctl_oid = LDAP_CONTROL_SYNC_DONE;
277 cp->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
278 cp->ldctl_value.bv_val = (char *)&cp[1];
279 cp->ldctl_value.bv_len = bv.bv_len;
280 AC_MEMCPY( cp->ldctl_value.bv_val, bv.bv_val, bv.bv_len );
281 ctrls[num_ctrls] = cp;
287 Debug( LDAP_DEBUG_TRACE,
288 "syncprov_done_ctrl: ber_flatten2 failed (%d)\n",
290 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
302 struct berval *cookie,
307 BerElementBuffer berbuf;
308 BerElement *ber = (BerElement *)&berbuf;
309 struct berval rspdata;
313 ber_init2( ber, NULL, LBER_USE_DER );
314 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
318 case LDAP_TAG_SYNC_NEW_COOKIE:
319 ber_printf( ber, "tO", type, cookie );
321 case LDAP_TAG_SYNC_REFRESH_DELETE:
322 case LDAP_TAG_SYNC_REFRESH_PRESENT:
323 ber_printf( ber, "t{", type );
325 ber_printf( ber, "O", cookie );
327 if ( refreshDone == 0 ) {
328 ber_printf( ber, "b", refreshDone );
330 ber_printf( ber, "N}" );
332 case LDAP_TAG_SYNC_ID_SET:
333 ber_printf( ber, "t{", type );
335 ber_printf( ber, "O", cookie );
337 if ( refreshDeletes == 1 ) {
338 ber_printf( ber, "b", refreshDeletes );
340 ber_printf( ber, "[W]", syncUUIDs );
341 ber_printf( ber, "N}" );
344 Debug( LDAP_DEBUG_TRACE,
345 "syncprov_sendinfo: invalid syncinfo type (%d)\n",
351 ret = ber_flatten2( ber, &rspdata, 0 );
354 Debug( LDAP_DEBUG_TRACE,
355 "syncprov_sendinfo: ber_flatten2 failed (%d)\n",
357 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
361 rs->sr_rspoid = LDAP_SYNC_INFO;
362 rs->sr_rspdata = &rspdata;
363 send_ldap_intermediate( op, rs );
364 rs->sr_rspdata = NULL;
370 /* Find a modtarget in an AVL tree */
372 sp_avl_cmp( const void *c1, const void *c2 )
374 const modtarget *m1, *m2;
378 rc = m1->mt_dn.bv_len - m2->mt_dn.bv_len;
381 return ber_bvcmp( &m1->mt_dn, &m2->mt_dn );
384 /* syncprov_findbase:
385 * finds the true DN of the base of a search (with alias dereferencing) and
386 * checks to make sure the base entry doesn't get replaced with a different
387 * entry (e.g., swapping trees via ModDN, or retargeting an alias). If a
388 * change is detected, any persistent search on this base must be terminated /
390 * On the first call, we just save the DN and entryID. On subsequent calls
391 * we compare the DN and entryID with the saved values.
394 findbase_cb( Operation *op, SlapReply *rs )
396 slap_callback *sc = op->o_callback;
398 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
399 fbase_cookie *fc = sc->sc_private;
401 /* If no entryID, we're looking for the first time.
402 * Just store whatever we got.
404 if ( fc->fss->s_eid == NOID ) {
406 fc->fss->s_eid = rs->sr_entry->e_id;
407 ber_dupbv( &fc->fss->s_base, &rs->sr_entry->e_nname );
409 } else if ( rs->sr_entry->e_id == fc->fss->s_eid &&
410 dn_match( &rs->sr_entry->e_nname, &fc->fss->s_base )) {
412 /* OK, the DN is the same and the entryID is the same. */
416 if ( rs->sr_err != LDAP_SUCCESS ) {
417 Debug( LDAP_DEBUG_ANY, "findbase failed! %d\n", rs->sr_err,0,0 );
422 static Filter generic_filter = { LDAP_FILTER_PRESENT, { 0 }, NULL };
423 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
426 syncprov_findbase( Operation *op, fbase_cookie *fc )
428 /* Use basic parameters from syncrepl search, but use
429 * current op's threadctx / tmpmemctx
431 ldap_pvt_thread_mutex_lock( &fc->fss->s_mutex );
432 if ( fc->fss->s_flags & PS_FIND_BASE ) {
433 slap_callback cb = {0};
435 SlapReply frs = { REP_RESULT };
438 fc->fss->s_flags ^= PS_FIND_BASE;
439 ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
441 fop = *fc->fss->s_op;
443 fop.o_bd = fop.o_bd->bd_self;
444 fop.o_hdr = op->o_hdr;
445 fop.o_time = op->o_time;
446 fop.o_tincr = op->o_tincr;
447 fop.o_extra = op->o_extra;
449 cb.sc_response = findbase_cb;
452 fop.o_sync_mode = 0; /* turn off sync mode */
453 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
454 fop.o_callback = &cb;
455 fop.o_tag = LDAP_REQ_SEARCH;
456 fop.ors_scope = LDAP_SCOPE_BASE;
457 fop.ors_limit = NULL;
459 fop.ors_tlimit = SLAP_NO_LIMIT;
460 fop.ors_attrs = slap_anlist_no_attrs;
461 fop.ors_attrsonly = 1;
462 fop.ors_filter = &generic_filter;
463 fop.ors_filterstr = generic_filterstr;
465 rc = fop.o_bd->be_search( &fop, &frs );
467 ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
471 /* After the first call, see if the fdn resides in the scope */
472 if ( fc->fbase == 1 ) {
473 switch ( fc->fss->s_op->ors_scope ) {
474 case LDAP_SCOPE_BASE:
475 fc->fscope = dn_match( fc->fdn, &fc->fss->s_base );
477 case LDAP_SCOPE_ONELEVEL: {
479 dnParent( fc->fdn, &pdn );
480 fc->fscope = dn_match( &pdn, &fc->fss->s_base );
482 case LDAP_SCOPE_SUBTREE:
483 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base );
485 case LDAP_SCOPE_SUBORDINATE:
486 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base ) &&
487 !dn_match( fc->fdn, &fc->fss->s_base );
495 /* If entryID has changed, then the base of this search has
496 * changed. Invalidate the psearch.
498 return LDAP_NO_SUCH_OBJECT;
502 * This function has three different purposes, but they all use a search
503 * that filters on entryCSN so they're combined here.
504 * 1: at startup time, after a contextCSN has been read from the database,
505 * we search for all entries with CSN >= contextCSN in case the contextCSN
506 * was not checkpointed at the previous shutdown.
508 * 2: when the current contextCSN is known and we have a sync cookie, we search
509 * for one entry with CSN = the cookie CSN. If not found, try <= cookie CSN.
510 * If an entry is found, the cookie CSN is valid, otherwise it is stale.
512 * 3: during a refresh phase, we search for all entries with CSN <= the cookie
513 * CSN, and generate Present records for them. We always collect this result
514 * in SyncID sets, even if there's only one match.
516 typedef enum find_csn_t {
523 findmax_cb( Operation *op, SlapReply *rs )
525 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
526 struct berval *maxcsn = op->o_callback->sc_private;
527 Attribute *a = attr_find( rs->sr_entry->e_attrs,
528 slap_schema.si_ad_entryCSN );
530 if ( a && ber_bvcmp( &a->a_vals[0], maxcsn ) > 0 &&
531 slap_parse_csn_sid( &a->a_vals[0] ) == slap_serverID ) {
532 maxcsn->bv_len = a->a_vals[0].bv_len;
533 strcpy( maxcsn->bv_val, a->a_vals[0].bv_val );
540 findcsn_cb( Operation *op, SlapReply *rs )
542 slap_callback *sc = op->o_callback;
544 /* We just want to know that at least one exists, so it's OK if
545 * we exceed the unchecked limit.
547 if ( rs->sr_err == LDAP_ADMINLIMIT_EXCEEDED ||
548 (rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS )) {
549 sc->sc_private = (void *)1;
554 /* Build a list of entryUUIDs for sending in a SyncID set */
558 typedef struct fpres_cookie {
565 findpres_cb( Operation *op, SlapReply *rs )
567 slap_callback *sc = op->o_callback;
568 fpres_cookie *pc = sc->sc_private;
570 int ret = SLAP_CB_CONTINUE;
572 switch ( rs->sr_type ) {
574 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
576 pc->uuids[pc->num].bv_val = pc->last;
577 AC_MEMCPY( pc->uuids[pc->num].bv_val, a->a_nvals[0].bv_val,
578 pc->uuids[pc->num].bv_len );
580 pc->last = pc->uuids[pc->num].bv_val;
581 pc->uuids[pc->num].bv_val = NULL;
584 if ( pc->num != SLAP_SYNCUUID_SET_SIZE )
590 ret = syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET, NULL,
592 pc->uuids[pc->num].bv_val = pc->last;
594 pc->last = pc->uuids[0].bv_val;
604 syncprov_findcsn( Operation *op, find_csn_t mode, struct berval *csn )
606 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
607 syncprov_info_t *si = on->on_bi.bi_private;
609 slap_callback cb = {0};
611 SlapReply frs = { REP_RESULT };
612 char buf[LDAP_PVT_CSNSTR_BUFSIZE + STRLENOF("(entryCSN<=)")];
613 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
614 struct berval maxcsn;
616 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
617 fpres_cookie pcookie;
618 sync_control *srs = NULL;
619 struct slap_limits_set fc_limits;
620 int i, rc = LDAP_SUCCESS, findcsn_retry = 1;
623 if ( mode != FIND_MAXCSN ) {
624 srs = op->o_controls[slap_cids.sc_LDAPsync];
628 fop.o_sync_mode &= SLAP_CONTROL_MASK; /* turn off sync_mode */
629 /* We want pure entries, not referrals */
630 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
633 cf.f_av_desc = slap_schema.si_ad_entryCSN;
634 BER_BVZERO( &cf.f_av_value );
637 fop.o_callback = &cb;
638 fop.ors_limit = NULL;
639 fop.ors_tlimit = SLAP_NO_LIMIT;
640 fop.ors_filter = &cf;
641 fop.ors_filterstr.bv_val = buf;
646 cf.f_choice = LDAP_FILTER_GE;
647 /* If there are multiple CSNs, use the one with our serverID */
648 for ( i=0; i<si->si_numcsns; i++) {
649 if ( slap_serverID == si->si_sids[i] ) {
654 if ( i == si->si_numcsns ) {
655 /* No match: this is multimaster, and none of the content in the DB
656 * originated locally. Treat like no CSN.
658 return LDAP_NO_SUCH_OBJECT;
660 cf.f_av_value = si->si_ctxcsn[maxid];
661 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
662 "(entryCSN>=%s)", cf.f_av_value.bv_val );
663 if ( fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
666 fop.ors_attrsonly = 0;
667 fop.ors_attrs = csn_anlist;
668 fop.ors_slimit = SLAP_NO_LIMIT;
669 cb.sc_private = &maxcsn;
670 cb.sc_response = findmax_cb;
671 strcpy( cbuf, cf.f_av_value.bv_val );
672 maxcsn.bv_val = cbuf;
673 maxcsn.bv_len = cf.f_av_value.bv_len;
676 if ( BER_BVISEMPTY( &cf.f_av_value )) {
677 cf.f_av_value = *csn;
679 fop.o_dn = op->o_bd->be_rootdn;
680 fop.o_ndn = op->o_bd->be_rootndn;
681 fop.o_req_dn = op->o_bd->be_suffix[0];
682 fop.o_req_ndn = op->o_bd->be_nsuffix[0];
683 /* Look for exact match the first time */
684 if ( findcsn_retry ) {
685 cf.f_choice = LDAP_FILTER_EQUALITY;
686 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
687 "(entryCSN=%s)", cf.f_av_value.bv_val );
688 /* On retry, look for <= */
690 cf.f_choice = LDAP_FILTER_LE;
691 fop.ors_limit = &fc_limits;
692 memset( &fc_limits, 0, sizeof( fc_limits ));
693 fc_limits.lms_s_unchecked = 1;
694 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
695 "(entryCSN<=%s)", cf.f_av_value.bv_val );
697 if ( fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
700 fop.ors_attrsonly = 1;
701 fop.ors_attrs = slap_anlist_no_attrs;
703 cb.sc_private = NULL;
704 cb.sc_response = findcsn_cb;
707 fop.ors_filter = op->ors_filter;
708 fop.ors_filterstr = op->ors_filterstr;
709 fop.ors_attrsonly = 0;
710 fop.ors_attrs = uuid_anlist;
711 fop.ors_slimit = SLAP_NO_LIMIT;
712 cb.sc_private = &pcookie;
713 cb.sc_response = findpres_cb;
716 /* preallocate storage for a full set */
717 pcookie.uuids = op->o_tmpalloc( (SLAP_SYNCUUID_SET_SIZE+1) *
718 sizeof(struct berval) + SLAP_SYNCUUID_SET_SIZE * UUID_LEN,
720 pcookie.last = (char *)(pcookie.uuids + SLAP_SYNCUUID_SET_SIZE+1);
721 pcookie.uuids[0].bv_val = pcookie.last;
722 pcookie.uuids[0].bv_len = UUID_LEN;
723 for (i=1; i<SLAP_SYNCUUID_SET_SIZE; i++) {
724 pcookie.uuids[i].bv_val = pcookie.uuids[i-1].bv_val + UUID_LEN;
725 pcookie.uuids[i].bv_len = UUID_LEN;
730 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
731 fop.o_bd->be_search( &fop, &frs );
732 fop.o_bd->bd_info = (BackendInfo *)on;
736 if ( ber_bvcmp( &si->si_ctxcsn[maxid], &maxcsn )) {
738 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
739 assert( !syn->ssyn_validate( syn, &maxcsn ));
741 ber_bvreplace( &si->si_ctxcsn[maxid], &maxcsn );
742 si->si_numops++; /* ensure a checkpoint */
746 /* If matching CSN was not found, invalidate the context. */
747 if ( !cb.sc_private ) {
748 /* If we didn't find an exact match, then try for <= */
749 if ( findcsn_retry ) {
751 rs_reinit( &frs, REP_RESULT );
754 rc = LDAP_NO_SUCH_OBJECT;
758 op->o_tmpfree( pcookie.uuids, op->o_tmpmemctx );
765 /* Should find a place to cache these */
766 static mutexint *get_mutexint()
768 mutexint *mi = ch_malloc( sizeof( mutexint ));
769 ldap_pvt_thread_mutex_init( &mi->mi_mutex );
774 static void inc_mutexint( mutexint *mi )
776 ldap_pvt_thread_mutex_lock( &mi->mi_mutex );
778 ldap_pvt_thread_mutex_unlock( &mi->mi_mutex );
781 /* return resulting counter */
782 static int dec_mutexint( mutexint *mi )
785 ldap_pvt_thread_mutex_lock( &mi->mi_mutex );
787 ldap_pvt_thread_mutex_unlock( &mi->mi_mutex );
789 ldap_pvt_thread_mutex_destroy( &mi->mi_mutex );
796 syncprov_free_syncop( syncops *so )
798 syncres *sr, *srnext;
799 GroupAssertion *ga, *gnext;
801 ldap_pvt_thread_mutex_lock( &so->s_mutex );
802 /* already being freed, or still in use */
803 if ( !so->s_inuse || --so->s_inuse > 0 ) {
804 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
807 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
808 if ( so->s_flags & PS_IS_DETACHED ) {
809 filter_free( so->s_op->ors_filter );
810 for ( ga = so->s_op->o_groups; ga; ga=gnext ) {
816 ch_free( so->s_base.bv_val );
817 for ( sr=so->s_res; sr; sr=srnext ) {
820 if ( !dec_mutexint( sr->s_e->e_private )) {
821 sr->s_e->e_private = NULL;
822 entry_free( sr->s_e );
827 ldap_pvt_thread_mutex_destroy( &so->s_mutex );
832 /* Send a persistent search response */
834 syncprov_sendresp( Operation *op, opcookie *opc, syncops *so, int mode )
836 SlapReply rs = { REP_SEARCH };
837 struct berval cookie, csns[2];
839 Attribute a_uuid = {0};
841 if ( so->s_op->o_abandon )
842 return SLAPD_ABANDON;
844 rs.sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2, op->o_tmpmemctx );
845 rs.sr_ctrls[1] = NULL;
846 rs.sr_flags = REP_CTRLS_MUSTBEFREED;
847 csns[0] = opc->sctxcsn;
848 BER_BVZERO( &csns[1] );
849 slap_compose_sync_cookie( op, &cookie, csns, so->s_rid, slap_serverID ? slap_serverID : -1 );
852 if ( so->s_sid > 0 ) {
853 Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: to=%03x, cookie=%s\n",
854 so->s_sid, cookie.bv_val, 0 );
856 Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: cookie=%s\n",
857 cookie.bv_val, 0, 0 );
861 e_uuid.e_attrs = &a_uuid;
862 a_uuid.a_desc = slap_schema.si_ad_entryUUID;
863 a_uuid.a_nvals = &opc->suuid;
864 rs.sr_err = syncprov_state_ctrl( op, &rs, &e_uuid,
865 mode, rs.sr_ctrls, 0, 1, &cookie );
866 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
868 rs.sr_entry = &e_uuid;
869 if ( mode == LDAP_SYNC_ADD || mode == LDAP_SYNC_MODIFY ) {
871 e_uuid.e_private = NULL;
876 if ( opc->sreference && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
877 rs.sr_ref = get_entry_referrals( op, rs.sr_entry );
878 rs.sr_err = send_search_reference( op, &rs );
879 ber_bvarray_free( rs.sr_ref );
883 case LDAP_SYNC_MODIFY:
884 rs.sr_attrs = op->ors_attrs;
885 rs.sr_err = send_search_entry( op, &rs );
887 case LDAP_SYNC_DELETE:
888 e_uuid.e_attrs = NULL;
889 e_uuid.e_name = opc->sdn;
890 e_uuid.e_nname = opc->sndn;
891 if ( opc->sreference && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
892 struct berval bv = BER_BVNULL;
894 rs.sr_err = send_search_reference( op, &rs );
896 rs.sr_err = send_search_entry( op, &rs );
906 syncprov_qstart( syncops *so );
908 /* Play back queued responses */
910 syncprov_qplay( Operation *op, syncops *so )
912 slap_overinst *on = LDAP_SLIST_FIRST(&so->s_op->o_extra)->oe_key;
920 ldap_pvt_thread_mutex_lock( &so->s_mutex );
922 /* Exit loop with mutex held */
925 so->s_res = sr->s_next;
927 so->s_restail = NULL;
928 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
930 if ( !so->s_op->o_abandon ) {
932 if ( sr->s_mode == LDAP_SYNC_NEW_COOKIE ) {
933 SlapReply rs = { REP_INTERMEDIATE };
935 rc = syncprov_sendinfo( op, &rs, LDAP_TAG_SYNC_NEW_COOKIE,
936 &sr->s_csn, 0, NULL, 0 );
939 opc.sndn = sr->s_ndn;
940 opc.suuid = sr->s_uuid;
941 opc.sctxcsn = sr->s_csn;
942 opc.sreference = sr->s_isreference;
945 rc = syncprov_sendresp( op, &opc, so, sr->s_mode );
950 if ( !dec_mutexint( sr->s_e->e_private )) {
951 sr->s_e->e_private = NULL;
952 entry_free ( sr->s_e );
957 if ( so->s_op->o_abandon )
960 /* Exit loop with mutex held */
961 ldap_pvt_thread_mutex_lock( &so->s_mutex );
966 /* We now only send one change at a time, to prevent one
967 * psearch from hogging all the CPU. Resubmit this task if
968 * there are more responses queued and no errors occurred.
971 if ( rc == 0 && so->s_res ) {
972 syncprov_qstart( so );
974 so->s_flags ^= PS_TASK_QUEUED;
977 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
981 /* task for playing back queued responses */
983 syncprov_qtask( void *ctx, void *arg )
986 OperationBuffer opbuf;
993 op->o_hdr = &opbuf.ob_hdr;
994 op->o_controls = opbuf.ob_controls;
995 memset( op->o_controls, 0, sizeof(opbuf.ob_controls) );
996 op->o_sync = SLAP_CONTROL_IGNORED;
998 *op->o_hdr = *so->s_op->o_hdr;
1000 op->o_tmpmemctx = slap_sl_mem_create(SLAP_SLAB_SIZE, SLAP_SLAB_STACK, ctx, 1);
1001 op->o_tmpmfuncs = &slap_sl_mfuncs;
1002 op->o_threadctx = ctx;
1004 /* syncprov_qplay expects a fake db */
1005 be = *so->s_op->o_bd;
1006 be.be_flags |= SLAP_DBFLAG_OVERLAY;
1008 LDAP_SLIST_FIRST(&op->o_extra) = NULL;
1009 op->o_callback = NULL;
1011 rc = syncprov_qplay( op, so );
1013 /* decrement use count... */
1014 syncprov_free_syncop( so );
1019 /* Start the task to play back queued psearch responses */
1021 syncprov_qstart( syncops *so )
1023 so->s_flags |= PS_TASK_QUEUED;
1025 ldap_pvt_thread_pool_submit( &connection_pool,
1026 syncprov_qtask, so );
1029 /* Queue a persistent search response */
1031 syncprov_qresp( opcookie *opc, syncops *so, int mode )
1035 struct berval cookie = opc->sctxcsn;
1037 if ( mode == LDAP_SYNC_NEW_COOKIE ) {
1038 syncprov_info_t *si = opc->son->on_bi.bi_private;
1040 slap_compose_sync_cookie( NULL, &cookie, si->si_ctxcsn,
1041 so->s_rid, slap_serverID ? slap_serverID : -1);
1044 srsize = sizeof(syncres) + opc->suuid.bv_len + 1 +
1045 opc->sdn.bv_len + 1 + opc->sndn.bv_len + 1;
1046 if ( cookie.bv_len )
1047 srsize += cookie.bv_len + 1;
1048 sr = ch_malloc( srsize );
1051 /* bump refcount on this entry */
1053 inc_mutexint( opc->se->e_private );
1054 sr->s_dn.bv_val = (char *)(sr + 1);
1055 sr->s_dn.bv_len = opc->sdn.bv_len;
1057 sr->s_isreference = opc->sreference;
1058 sr->s_ndn.bv_val = lutil_strcopy( sr->s_dn.bv_val,
1059 opc->sdn.bv_val ) + 1;
1060 sr->s_ndn.bv_len = opc->sndn.bv_len;
1061 sr->s_uuid.bv_val = lutil_strcopy( sr->s_ndn.bv_val,
1062 opc->sndn.bv_val ) + 1;
1063 sr->s_uuid.bv_len = opc->suuid.bv_len;
1064 AC_MEMCPY( sr->s_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1065 if ( cookie.bv_len ) {
1066 sr->s_csn.bv_val = sr->s_uuid.bv_val + sr->s_uuid.bv_len + 1;
1067 strcpy( sr->s_csn.bv_val, cookie.bv_val );
1069 sr->s_csn.bv_val = NULL;
1071 sr->s_csn.bv_len = cookie.bv_len;
1073 if ( mode == LDAP_SYNC_NEW_COOKIE && cookie.bv_val ) {
1074 ch_free( cookie.bv_val );
1077 ldap_pvt_thread_mutex_lock( &so->s_mutex );
1081 so->s_restail->s_next = sr;
1085 /* If the base of the psearch was modified, check it next time round */
1086 if ( so->s_flags & PS_WROTE_BASE ) {
1087 so->s_flags ^= PS_WROTE_BASE;
1088 so->s_flags |= PS_FIND_BASE;
1090 if (( so->s_flags & (PS_IS_DETACHED|PS_TASK_QUEUED)) == PS_IS_DETACHED ) {
1091 syncprov_qstart( so );
1093 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
1094 return LDAP_SUCCESS;
1098 syncprov_drop_psearch( syncops *so, int lock )
1100 if ( so->s_flags & PS_IS_DETACHED ) {
1102 ldap_pvt_thread_mutex_lock( &so->s_op->o_conn->c_mutex );
1103 so->s_op->o_conn->c_n_ops_executing--;
1104 so->s_op->o_conn->c_n_ops_completed++;
1105 LDAP_STAILQ_REMOVE( &so->s_op->o_conn->c_ops, so->s_op, Operation,
1108 ldap_pvt_thread_mutex_unlock( &so->s_op->o_conn->c_mutex );
1110 return 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( sc->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 op->o_callback = cb;
1154 return SLAP_CB_CONTINUE;
1157 syncprov_drop_psearch( so, 0 );
1159 return SLAP_CB_CONTINUE;
1162 /* Find which persistent searches are affected by this operation */
1164 syncprov_matchops( Operation *op, opcookie *opc, int saveit )
1166 slap_overinst *on = opc->son;
1167 syncprov_info_t *si = on->on_bi.bi_private;
1174 struct berval newdn;
1176 BackendDB *b0 = op->o_bd, db;
1178 fc.fdn = &op->o_req_ndn;
1179 /* compute new DN */
1180 if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1182 if ( op->orr_nnewSup ) pdn = *op->orr_nnewSup;
1183 else dnParent( fc.fdn, &pdn );
1184 build_new_dn( &newdn, &pdn, &op->orr_nnewrdn, op->o_tmpmemctx );
1188 if ( op->o_tag != LDAP_REQ_ADD ) {
1189 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1193 rc = overlay_entry_get_ov( op, fc.fdn, NULL, NULL, 0, &e, on );
1194 /* If we're sending responses now, make a copy and unlock the DB */
1195 if ( e && !saveit ) {
1197 opc->se = entry_dup( e );
1198 opc->se->e_private = get_mutexint();
1200 overlay_entry_release_ov( op, e, 0, on );
1211 opc->se = entry_dup( e );
1212 opc->se->e_private = get_mutexint();
1218 if ( saveit || op->o_tag == LDAP_REQ_ADD ) {
1219 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1220 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1221 opc->sreference = is_entry_referral( e );
1222 a = attr_find( e->e_attrs, slap_schema.si_ad_entryUUID );
1224 ber_dupbv_x( &opc->suuid, &a->a_nvals[0], op->o_tmpmemctx );
1225 } else if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1226 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1227 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1228 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1229 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1232 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1233 for (pss = &si->si_ops; *pss; pss = gonext ? &(*pss)->s_next : pss)
1239 syncops *snext, *ss = *pss;
1242 if ( ss->s_op->o_abandon )
1245 /* Don't send ops back to the originator */
1246 if ( opc->osid > 0 && opc->osid == ss->s_sid ) {
1247 Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping original sid %03x\n",
1252 /* Don't send ops back to the messenger */
1253 if ( opc->rsid > 0 && opc->rsid == ss->s_sid ) {
1254 Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping relayed sid %03x\n",
1264 /* If the base of the search is missing, signal a refresh */
1265 rc = syncprov_findbase( op, &fc );
1266 if ( rc != LDAP_SUCCESS ) {
1267 SlapReply rs = {REP_RESULT};
1268 send_ldap_error( ss->s_op, &rs, LDAP_SYNC_REFRESH_REQUIRED,
1269 "search base has changed" );
1271 if ( syncprov_drop_psearch( ss, 1 ) )
1277 /* If we're sending results now, look for this op in old matches */
1281 /* Did we modify the search base? */
1282 if ( dn_match( &op->o_req_ndn, &ss->s_base )) {
1283 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1284 ss->s_flags |= PS_WROTE_BASE;
1285 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1288 for ( sm=opc->smatches, old=(syncmatches *)&opc->smatches; sm;
1289 old=sm, sm=sm->sm_next ) {
1290 if ( sm->sm_op == ss ) {
1292 old->sm_next = sm->sm_next;
1293 op->o_tmpfree( sm, op->o_tmpmemctx );
1300 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1303 oh.oh_conn = ss->s_op->o_conn;
1304 oh.oh_connid = ss->s_op->o_connid;
1305 op2.o_bd = op->o_bd->bd_self;
1307 op2.o_extra = op->o_extra;
1308 op2.o_callback = NULL;
1309 if (ss->s_flags & PS_FIX_FILTER) {
1310 /* Skip the AND/GE clause that we stuck on in front. We
1311 would lose deletes/mods that happen during the refresh
1312 phase otherwise (ITS#6555) */
1313 op2.ors_filter = ss->s_op->ors_filter->f_and->f_next;
1315 rc = test_filter( &op2, e, op2.ors_filter );
1316 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1319 Debug( LDAP_DEBUG_TRACE, "syncprov_matchops: sid %03x fscope %d rc %d\n",
1320 ss->s_sid, fc.fscope, rc );
1322 /* check if current o_req_dn is in scope and matches filter */
1323 if ( fc.fscope && rc == LDAP_COMPARE_TRUE ) {
1325 sm = op->o_tmpalloc( sizeof(syncmatches), op->o_tmpmemctx );
1326 sm->sm_next = opc->smatches;
1328 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1330 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1333 /* if found send UPDATE else send ADD */
1334 syncprov_qresp( opc, ss,
1335 found ? LDAP_SYNC_MODIFY : LDAP_SYNC_ADD );
1337 } else if ( !saveit && found ) {
1339 syncprov_qresp( opc, ss, LDAP_SYNC_DELETE );
1340 } else if ( !saveit ) {
1341 syncprov_qresp( opc, ss, LDAP_SYNC_NEW_COOKIE );
1343 if ( !saveit && found ) {
1344 /* Decrement s_inuse, was incremented when called
1345 * with saveit == TRUE
1348 if ( syncprov_free_syncop( ss ) ) {
1354 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1356 if ( op->o_tag != LDAP_REQ_ADD && e ) {
1357 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1361 overlay_entry_release_ov( op, e, 0, on );
1364 if ( opc->se && !saveit ) {
1365 if ( !dec_mutexint( opc->se->e_private )) {
1366 opc->se->e_private = NULL;
1367 entry_free( opc->se );
1372 op->o_tmpfree( fc.fdn->bv_val, op->o_tmpmemctx );
1378 syncprov_op_cleanup( Operation *op, SlapReply *rs )
1380 slap_callback *cb = op->o_callback;
1381 opcookie *opc = cb->sc_private;
1382 slap_overinst *on = opc->son;
1383 syncprov_info_t *si = on->on_bi.bi_private;
1384 syncmatches *sm, *snext;
1387 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1388 if ( si->si_active )
1390 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1392 for (sm = opc->smatches; sm; sm=snext) {
1393 snext = sm->sm_next;
1394 syncprov_free_syncop( sm->sm_op );
1395 op->o_tmpfree( sm, op->o_tmpmemctx );
1398 /* Remove op from lock table */
1401 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1402 mt->mt_mods = mt->mt_mods->mi_next;
1403 /* If there are more, promote the next one */
1404 if ( mt->mt_mods ) {
1405 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1407 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1408 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1409 avl_delete( &si->si_mods, mt, sp_avl_cmp );
1410 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1411 ldap_pvt_thread_mutex_destroy( &mt->mt_mutex );
1412 ch_free( mt->mt_dn.bv_val );
1416 if ( !BER_BVISNULL( &opc->suuid ))
1417 op->o_tmpfree( opc->suuid.bv_val, op->o_tmpmemctx );
1418 if ( !BER_BVISNULL( &opc->sndn ))
1419 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1420 if ( !BER_BVISNULL( &opc->sdn ))
1421 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1422 op->o_callback = cb->sc_next;
1423 op->o_tmpfree(cb, op->o_tmpmemctx);
1429 syncprov_checkpoint( Operation *op, slap_overinst *on )
1431 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
1434 SlapReply rsm = {REP_RESULT};
1435 slap_callback cb = {0};
1440 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1443 for ( i=0; i<si->si_numcsns; i++ ) {
1444 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1447 mod.sml_numvals = si->si_numcsns;
1448 mod.sml_values = si->si_ctxcsn;
1449 mod.sml_nvalues = NULL;
1450 mod.sml_desc = slap_schema.si_ad_contextCSN;
1451 mod.sml_op = LDAP_MOD_REPLACE;
1452 mod.sml_flags = SLAP_MOD_INTERNAL;
1453 mod.sml_next = NULL;
1455 cb.sc_response = slap_null_cb;
1457 opm.o_tag = LDAP_REQ_MODIFY;
1458 opm.o_callback = &cb;
1459 opm.orm_modlist = &mod;
1460 opm.orm_no_opattrs = 1;
1461 if ( SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1462 be = *on->on_info->oi_origdb;
1465 opm.o_req_dn = si->si_contextdn;
1466 opm.o_req_ndn = si->si_contextdn;
1467 bi = opm.o_bd->bd_info;
1468 opm.o_bd->bd_info = on->on_info->oi_orig;
1469 opm.o_managedsait = SLAP_CONTROL_NONCRITICAL;
1470 opm.o_no_schema_check = 1;
1471 opm.o_bd->be_modify( &opm, &rsm );
1473 if ( rsm.sr_err == LDAP_NO_SUCH_OBJECT &&
1474 SLAP_SYNC_SUBENTRY( opm.o_bd )) {
1476 char txtbuf[SLAP_TEXT_BUFLEN];
1477 size_t textlen = sizeof txtbuf;
1478 Entry *e = slap_create_context_csn_entry( opm.o_bd, NULL );
1479 rs_reinit( &rsm, REP_RESULT );
1480 slap_mods2entry( &mod, &e, 0, 1, &text, txtbuf, textlen);
1482 opm.o_bd->be_add( &opm, &rsm );
1483 if ( e == opm.ora_e )
1484 be_entry_release_w( &opm, opm.ora_e );
1486 opm.o_bd->bd_info = bi;
1488 if ( mod.sml_next != NULL ) {
1489 slap_mods_free( mod.sml_next, 1 );
1492 for ( i=0; i<si->si_numcsns; i++ ) {
1493 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1499 syncprov_add_slog( Operation *op )
1501 opcookie *opc = op->o_callback->sc_private;
1502 slap_overinst *on = opc->son;
1503 syncprov_info_t *si = on->on_bi.bi_private;
1509 if ( BER_BVISEMPTY( &op->o_csn ) ) {
1510 /* During the syncrepl refresh phase we can receive operations
1511 * without a csn. We cannot reliably determine the consumers
1512 * state with respect to such operations, so we ignore them and
1513 * wipe out anything in the log if we see them.
1515 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1516 while ( se = sl->sl_head ) {
1517 sl->sl_head = se->se_next;
1522 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1526 /* Allocate a record. UUIDs are not NUL-terminated. */
1527 se = ch_malloc( sizeof( slog_entry ) + opc->suuid.bv_len +
1528 op->o_csn.bv_len + 1 );
1530 se->se_tag = op->o_tag;
1532 se->se_uuid.bv_val = (char *)(&se[1]);
1533 AC_MEMCPY( se->se_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1534 se->se_uuid.bv_len = opc->suuid.bv_len;
1536 se->se_csn.bv_val = se->se_uuid.bv_val + opc->suuid.bv_len;
1537 AC_MEMCPY( se->se_csn.bv_val, op->o_csn.bv_val, op->o_csn.bv_len );
1538 se->se_csn.bv_val[op->o_csn.bv_len] = '\0';
1539 se->se_csn.bv_len = op->o_csn.bv_len;
1540 se->se_sid = slap_parse_csn_sid( &se->se_csn );
1542 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1543 if ( sl->sl_head ) {
1544 /* Keep the list in csn order. */
1545 if ( ber_bvcmp( &sl->sl_tail->se_csn, &se->se_csn ) <= 0 ) {
1546 sl->sl_tail->se_next = se;
1551 for ( sep = &sl->sl_head; *sep; sep = &(*sep)->se_next ) {
1552 if ( ber_bvcmp( &se->se_csn, &(*sep)->se_csn ) < 0 ) {
1562 if ( !sl->sl_mincsn ) {
1564 sl->sl_mincsn = ch_malloc( 2*sizeof( struct berval ));
1565 sl->sl_sids = ch_malloc( sizeof( int ));
1566 sl->sl_sids[0] = se->se_sid;
1567 ber_dupbv( sl->sl_mincsn, &se->se_csn );
1568 BER_BVZERO( &sl->sl_mincsn[1] );
1572 while ( sl->sl_num > sl->sl_size ) {
1575 sl->sl_head = se->se_next;
1576 for ( i=0; i<sl->sl_numcsns; i++ )
1577 if ( sl->sl_sids[i] >= se->se_sid )
1579 if ( i == sl->sl_numcsns || sl->sl_sids[i] != se->se_sid ) {
1580 slap_insert_csn_sids( (struct sync_cookie *)sl,
1581 i, se->se_sid, &se->se_csn );
1583 ber_bvreplace( &sl->sl_mincsn[i], &se->se_csn );
1588 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1592 /* Just set a flag if we found the matching entry */
1594 playlog_cb( Operation *op, SlapReply *rs )
1596 if ( rs->sr_type == REP_SEARCH ) {
1597 op->o_callback->sc_private = (void *)1;
1602 /* enter with sl->sl_mutex locked, release before returning */
1604 syncprov_playlog( Operation *op, SlapReply *rs, sessionlog *sl,
1605 sync_control *srs, BerVarray ctxcsn, int numcsns, int *sids )
1607 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1609 int i, j, ndel, num, nmods, mmods;
1610 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
1612 struct berval delcsn[2];
1614 if ( !sl->sl_num ) {
1615 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1623 uuids = op->o_tmpalloc( (num+1) * sizeof( struct berval ) +
1624 num * UUID_LEN, op->o_tmpmemctx );
1625 uuids[0].bv_val = (char *)(uuids + num + 1);
1627 delcsn[0].bv_len = 0;
1628 delcsn[0].bv_val = cbuf;
1629 BER_BVZERO(&delcsn[1]);
1631 /* Make a copy of the relevant UUIDs. Put the Deletes up front
1632 * and everything else at the end. Do this first so we can
1633 * unlock the list mutex.
1635 Debug( LDAP_DEBUG_SYNC, "srs csn %s\n",
1636 srs->sr_state.ctxcsn[0].bv_val, 0, 0 );
1637 for ( se=sl->sl_head; se; se=se->se_next ) {
1639 Debug( LDAP_DEBUG_SYNC, "log csn %s\n", se->se_csn.bv_val, 0, 0 );
1641 for ( k=0; k<srs->sr_state.numcsns; k++ ) {
1642 if ( se->se_sid == srs->sr_state.sids[k] ) {
1643 ndel = ber_bvcmp( &se->se_csn, &srs->sr_state.ctxcsn[k] );
1648 Debug( LDAP_DEBUG_SYNC, "cmp %d, too old\n", ndel, 0, 0 );
1652 for ( k=0; k<numcsns; k++ ) {
1653 if ( se->se_sid == sids[k] ) {
1654 ndel = ber_bvcmp( &se->se_csn, &ctxcsn[k] );
1659 Debug( LDAP_DEBUG_SYNC, "cmp %d, too new\n", ndel, 0, 0 );
1662 if ( se->se_tag == LDAP_REQ_DELETE ) {
1665 AC_MEMCPY( cbuf, se->se_csn.bv_val, se->se_csn.bv_len );
1666 delcsn[0].bv_len = se->se_csn.bv_len;
1667 delcsn[0].bv_val[delcsn[0].bv_len] = '\0';
1669 if ( se->se_tag == LDAP_REQ_ADD )
1674 uuids[j].bv_val = uuids[0].bv_val + (j * UUID_LEN);
1675 AC_MEMCPY(uuids[j].bv_val, se->se_uuid.bv_val, UUID_LEN);
1676 uuids[j].bv_len = UUID_LEN;
1678 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1682 /* Zero out unused slots */
1683 for ( i=ndel; i < num - nmods; i++ )
1684 uuids[i].bv_len = 0;
1686 /* Mods must be validated to see if they belong in this delete set.
1690 /* Strip any duplicates */
1691 for ( i=0; i<nmods; i++ ) {
1692 for ( j=0; j<ndel; j++ ) {
1693 if ( bvmatch( &uuids[j], &uuids[num - 1 - i] )) {
1694 uuids[num - 1 - i].bv_len = 0;
1699 if ( uuids[num - 1 - i].bv_len == 0 ) continue;
1700 for ( j=0; j<i; j++ ) {
1701 if ( bvmatch( &uuids[num - 1 - j], &uuids[num - 1 - i] )) {
1702 uuids[num - 1 - i].bv_len = 0;
1713 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
1714 slap_callback cb = {0};
1718 fop.o_sync_mode = 0;
1719 fop.o_callback = &cb;
1720 fop.ors_limit = NULL;
1721 fop.ors_tlimit = SLAP_NO_LIMIT;
1722 fop.ors_attrs = slap_anlist_all_attributes;
1723 fop.ors_attrsonly = 0;
1724 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
1726 af.f_choice = LDAP_FILTER_AND;
1729 mf.f_choice = LDAP_FILTER_EQUALITY;
1731 mf.f_av_desc = slap_schema.si_ad_entryUUID;
1732 mf.f_next = fop.ors_filter;
1734 fop.ors_filter = ⁡
1736 cb.sc_response = playlog_cb;
1737 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
1739 for ( i=ndel; i<num; i++ ) {
1740 if ( uuids[i].bv_len != 0 ) {
1741 SlapReply frs = { REP_RESULT };
1743 mf.f_av_value = uuids[i];
1744 cb.sc_private = NULL;
1746 rc = fop.o_bd->be_search( &fop, &frs );
1748 /* If entry was not found, add to delete list */
1749 if ( !cb.sc_private ) {
1750 uuids[ndel++] = uuids[i];
1754 fop.o_bd->bd_info = (BackendInfo *)on;
1757 struct berval cookie;
1759 if ( delcsn[0].bv_len ) {
1760 slap_compose_sync_cookie( op, &cookie, delcsn, srs->sr_state.rid,
1761 slap_serverID ? slap_serverID : -1 );
1763 Debug( LDAP_DEBUG_SYNC, "syncprov_playlog: cookie=%s\n", cookie.bv_val, 0, 0 );
1766 uuids[ndel].bv_val = NULL;
1767 syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET,
1768 delcsn[0].bv_len ? &cookie : NULL, 0, uuids, 1 );
1769 if ( delcsn[0].bv_len ) {
1770 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
1773 op->o_tmpfree( uuids, op->o_tmpmemctx );
1777 syncprov_op_response( Operation *op, SlapReply *rs )
1779 opcookie *opc = op->o_callback->sc_private;
1780 slap_overinst *on = opc->son;
1781 syncprov_info_t *si = on->on_bi.bi_private;
1784 if ( rs->sr_err == LDAP_SUCCESS )
1786 struct berval maxcsn;
1787 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
1788 int do_check = 0, have_psearches, foundit, csn_changed = 0;
1790 ldap_pvt_thread_mutex_lock( &si->si_resp_mutex );
1792 /* Update our context CSN */
1794 maxcsn.bv_val = cbuf;
1795 maxcsn.bv_len = sizeof(cbuf);
1796 ldap_pvt_thread_rdwr_wlock( &si->si_csn_rwlock );
1798 slap_get_commit_csn( op, &maxcsn, &foundit );
1799 if ( BER_BVISEMPTY( &maxcsn ) && SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1800 /* syncrepl queues the CSN values in the db where
1801 * it is configured , not where the changes are made.
1802 * So look for a value in the glue db if we didn't
1803 * find any in this db.
1805 BackendDB *be = op->o_bd;
1806 op->o_bd = select_backend( &be->be_nsuffix[0], 1);
1807 maxcsn.bv_val = cbuf;
1808 maxcsn.bv_len = sizeof(cbuf);
1809 slap_get_commit_csn( op, &maxcsn, &foundit );
1812 if ( !BER_BVISEMPTY( &maxcsn ) ) {
1815 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1816 assert( !syn->ssyn_validate( syn, &maxcsn ));
1818 sid = slap_parse_csn_sid( &maxcsn );
1819 for ( i=0; i<si->si_numcsns; i++ ) {
1820 if ( sid < si->si_sids[i] )
1822 if ( sid == si->si_sids[i] ) {
1823 if ( ber_bvcmp( &maxcsn, &si->si_ctxcsn[i] ) > 0 ) {
1824 ber_bvreplace( &si->si_ctxcsn[i], &maxcsn );
1830 /* It's a new SID for us */
1831 if ( i == si->si_numcsns || sid != si->si_sids[i] ) {
1832 slap_insert_csn_sids((struct sync_cookie *)&(si->si_ctxcsn),
1838 /* Don't do any processing for consumer contextCSN updates */
1839 if ( op->o_dont_replicate ) {
1840 if ( op->o_tag == LDAP_REQ_MODIFY &&
1841 op->orm_modlist->sml_op == LDAP_MOD_REPLACE &&
1842 op->orm_modlist->sml_desc == slap_schema.si_ad_contextCSN ) {
1843 /* Catch contextCSN updates from syncrepl. We have to look at
1844 * all the attribute values, as there may be more than one csn
1845 * that changed, and only one can be passed in the csn queue.
1847 Modifications *mod = op->orm_modlist;
1851 for ( i=0; i<mod->sml_numvals; i++ ) {
1852 sid = slap_parse_csn_sid( &mod->sml_values[i] );
1853 for ( j=0; j<si->si_numcsns; j++ ) {
1854 if ( sid < si->si_sids[j] )
1856 if ( sid == si->si_sids[j] ) {
1857 if ( ber_bvcmp( &mod->sml_values[i], &si->si_ctxcsn[j] ) > 0 ) {
1858 ber_bvreplace( &si->si_ctxcsn[j], &mod->sml_values[i] );
1865 if ( j == si->si_numcsns || sid != si->si_sids[j] ) {
1866 slap_insert_csn_sids( (struct sync_cookie *)&si->si_ctxcsn,
1867 j, sid, &mod->sml_values[i] );
1873 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1875 if ( csn_changed ) {
1877 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1878 for ( ss = si->si_ops; ss; ss = ss->s_next ) {
1879 if ( ss->s_op->o_abandon )
1881 /* Send the updated csn to all syncrepl consumers,
1882 * including the server from which it originated.
1883 * The syncrepl consumer and syncprov provider on
1884 * the originating server may be configured to store
1885 * their csn values in different entries.
1887 syncprov_qresp( opc, ss, LDAP_SYNC_NEW_COOKIE );
1889 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1892 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1898 if ( si->si_chkops || si->si_chktime ) {
1899 /* Never checkpoint adding the context entry,
1902 if ( op->o_tag != LDAP_REQ_ADD ||
1903 !dn_match( &op->o_req_ndn, &si->si_contextdn )) {
1904 if ( si->si_chkops && si->si_numops >= si->si_chkops ) {
1908 if ( si->si_chktime &&
1909 (op->o_time - si->si_chklast >= si->si_chktime )) {
1910 if ( si->si_chklast ) {
1912 si->si_chklast = op->o_time;
1919 si->si_dirty = !csn_changed;
1920 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1923 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1924 syncprov_checkpoint( op, on );
1925 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1928 /* only update consumer ctx if this is a newer csn */
1929 if ( csn_changed ) {
1930 opc->sctxcsn = maxcsn;
1933 /* Handle any persistent searches */
1934 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1935 have_psearches = ( si->si_ops != NULL );
1936 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1937 if ( have_psearches ) {
1940 case LDAP_REQ_MODIFY:
1941 case LDAP_REQ_MODRDN:
1942 case LDAP_REQ_EXTENDED:
1943 syncprov_matchops( op, opc, 0 );
1945 case LDAP_REQ_DELETE:
1946 /* for each match in opc->smatches:
1949 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1950 if ( sm->sm_op->s_op->o_abandon )
1952 syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_DELETE );
1958 /* Add any log records */
1959 if ( si->si_logs ) {
1960 syncprov_add_slog( op );
1962 leave: ldap_pvt_thread_mutex_unlock( &si->si_resp_mutex );
1964 return SLAP_CB_CONTINUE;
1967 /* We don't use a subentry to store the context CSN any more.
1968 * We expose the current context CSN as an operational attribute
1969 * of the suffix entry.
1972 syncprov_op_compare( Operation *op, SlapReply *rs )
1974 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1975 syncprov_info_t *si = on->on_bi.bi_private;
1976 int rc = SLAP_CB_CONTINUE;
1978 if ( dn_match( &op->o_req_ndn, &si->si_contextdn ) &&
1979 op->oq_compare.rs_ava->aa_desc == slap_schema.si_ad_contextCSN )
1984 e.e_name = si->si_contextdn;
1985 e.e_nname = si->si_contextdn;
1988 a.a_desc = slap_schema.si_ad_contextCSN;
1990 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1992 a.a_vals = si->si_ctxcsn;
1993 a.a_nvals = a.a_vals;
1994 a.a_numvals = si->si_numcsns;
1996 rs->sr_err = access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc,
1997 &op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL );
1998 if ( ! rs->sr_err ) {
1999 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
2000 goto return_results;
2003 if ( get_assert( op ) &&
2004 ( test_filter( op, &e, get_assertion( op ) ) != LDAP_COMPARE_TRUE ) )
2006 rs->sr_err = LDAP_ASSERTION_FAILED;
2007 goto return_results;
2011 rs->sr_err = LDAP_COMPARE_FALSE;
2013 if ( attr_valfind( &a,
2014 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
2015 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
2016 &op->oq_compare.rs_ava->aa_value, NULL, op->o_tmpmemctx ) == 0 )
2018 rs->sr_err = LDAP_COMPARE_TRUE;
2023 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2025 send_ldap_result( op, rs );
2027 if( rs->sr_err == LDAP_COMPARE_FALSE || rs->sr_err == LDAP_COMPARE_TRUE ) {
2028 rs->sr_err = LDAP_SUCCESS;
2037 syncprov_op_mod( Operation *op, SlapReply *rs )
2039 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2040 syncprov_info_t *si = on->on_bi.bi_private;
2043 int have_psearches, cbsize;
2045 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2046 have_psearches = ( si->si_ops != NULL );
2048 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2050 cbsize = sizeof(slap_callback) + sizeof(opcookie) +
2051 (have_psearches ? sizeof(modinst) : 0 );
2053 cb = op->o_tmpcalloc(1, cbsize, op->o_tmpmemctx);
2054 opc = (opcookie *)(cb+1);
2056 cb->sc_response = syncprov_op_response;
2057 cb->sc_cleanup = syncprov_op_cleanup;
2058 cb->sc_private = opc;
2059 cb->sc_next = op->o_callback;
2060 op->o_callback = cb;
2064 if ( op->o_csn.bv_val ) {
2065 opc->osid = slap_parse_csn_sid( &op->o_csn );
2067 if ( op->o_controls ) {
2068 struct sync_cookie *scook =
2069 op->o_controls[slap_cids.sc_LDAPsync];
2071 opc->rsid = scook->sid;
2074 if ( op->o_dont_replicate )
2075 return SLAP_CB_CONTINUE;
2077 /* If there are active persistent searches, lock this operation.
2078 * See seqmod.c for the locking logic on its own.
2080 if ( have_psearches ) {
2081 modtarget *mt, mtdummy;
2084 mi = (modinst *)(opc+1);
2087 /* See if we're already modifying this entry... */
2088 mtdummy.mt_dn = op->o_req_ndn;
2089 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
2090 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
2092 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
2093 if ( mt->mt_mods == NULL ) {
2094 /* Cannot reuse this mt, as another thread is about
2095 * to release it in syncprov_op_cleanup.
2097 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2102 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
2103 mt->mt_tail->mi_next = mi;
2105 /* wait for this op to get to head of list */
2106 while ( mt->mt_mods != mi ) {
2107 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2108 /* FIXME: if dynamic config can delete overlays or
2109 * databases we'll have to check for cleanup here.
2110 * Currently it's not an issue because there are
2111 * no dynamic config deletes...
2113 if ( slapd_shutdown )
2114 return SLAPD_ABANDON;
2116 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
2117 ldap_pvt_thread_yield();
2118 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
2120 /* clean up if the caller is giving up */
2121 if ( op->o_abandon ) {
2123 for ( m2 = mt->mt_mods; m2 && m2->mi_next != mi;
2126 m2->mi_next = mi->mi_next;
2127 if ( mt->mt_tail == mi ) mt->mt_tail = m2;
2129 op->o_tmpfree( cb, op->o_tmpmemctx );
2130 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2131 return SLAPD_ABANDON;
2134 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2136 /* Record that we're modifying this entry now */
2137 mt = ch_malloc( sizeof(modtarget) );
2140 ber_dupbv( &mt->mt_dn, &mi->mi_op->o_req_ndn );
2141 ldap_pvt_thread_mutex_init( &mt->mt_mutex );
2142 avl_insert( &si->si_mods, mt, sp_avl_cmp, avl_dup_error );
2143 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
2148 if (( have_psearches || si->si_logs ) && op->o_tag != LDAP_REQ_ADD )
2149 syncprov_matchops( op, opc, 1 );
2151 return SLAP_CB_CONTINUE;
2155 syncprov_op_extended( Operation *op, SlapReply *rs )
2157 if ( exop_is_write( op ))
2158 return syncprov_op_mod( op, rs );
2160 return SLAP_CB_CONTINUE;
2163 typedef struct searchstate {
2164 slap_overinst *ss_on;
2166 BerVarray ss_ctxcsn;
2169 #define SS_PRESENT 0x01
2170 #define SS_CHANGED 0x02
2174 typedef struct SyncOperationBuffer {
2178 AttributeName sob_extra; /* not always present */
2179 /* Further data allocated here */
2180 } SyncOperationBuffer;
2183 syncprov_detach_op( Operation *op, syncops *so, slap_overinst *on )
2185 SyncOperationBuffer *sopbuf2;
2190 GroupAssertion *g1, *g2;
2192 /* count the search attrs */
2193 for (i=0; op->ors_attrs && !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2194 alen += op->ors_attrs[i].an_name.bv_len + 1;
2196 /* Make a new copy of the operation */
2197 size = offsetof( SyncOperationBuffer, sob_extra ) +
2198 (i ? ( (i+1) * sizeof(AttributeName) + alen) : 0) +
2199 op->o_req_dn.bv_len + 1 +
2200 op->o_req_ndn.bv_len + 1 +
2201 op->o_ndn.bv_len + 1 +
2202 so->s_filterstr.bv_len + 1;
2203 sopbuf2 = ch_calloc( 1, size );
2204 op2 = &sopbuf2->sob_op;
2205 op2->o_hdr = &sopbuf2->sob_hdr;
2206 LDAP_SLIST_FIRST(&op2->o_extra) = &sopbuf2->sob_oe;
2208 /* Copy the fields we care about explicitly, leave the rest alone */
2209 *op2->o_hdr = *op->o_hdr;
2210 op2->o_tag = op->o_tag;
2211 op2->o_time = op->o_time;
2212 op2->o_bd = on->on_info->oi_origdb;
2213 op2->o_request = op->o_request;
2214 op2->o_managedsait = op->o_managedsait;
2215 LDAP_SLIST_FIRST(&op2->o_extra)->oe_key = on;
2216 LDAP_SLIST_NEXT(LDAP_SLIST_FIRST(&op2->o_extra), oe_next) = NULL;
2218 ptr = (char *) sopbuf2 + offsetof( SyncOperationBuffer, sob_extra );
2220 op2->ors_attrs = (AttributeName *) ptr;
2221 ptr = (char *) &op2->ors_attrs[i+1];
2222 for (i=0; !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2223 op2->ors_attrs[i] = op->ors_attrs[i];
2224 op2->ors_attrs[i].an_name.bv_val = ptr;
2225 ptr = lutil_strcopy( ptr, op->ors_attrs[i].an_name.bv_val ) + 1;
2227 BER_BVZERO( &op2->ors_attrs[i].an_name );
2230 op2->o_authz = op->o_authz;
2231 op2->o_ndn.bv_val = ptr;
2232 ptr = lutil_strcopy(ptr, op->o_ndn.bv_val) + 1;
2233 op2->o_dn = op2->o_ndn;
2234 op2->o_req_dn.bv_len = op->o_req_dn.bv_len;
2235 op2->o_req_dn.bv_val = ptr;
2236 ptr = lutil_strcopy(ptr, op->o_req_dn.bv_val) + 1;
2237 op2->o_req_ndn.bv_len = op->o_req_ndn.bv_len;
2238 op2->o_req_ndn.bv_val = ptr;
2239 ptr = lutil_strcopy(ptr, op->o_req_ndn.bv_val) + 1;
2240 op2->ors_filterstr.bv_val = ptr;
2241 strcpy( ptr, so->s_filterstr.bv_val );
2242 op2->ors_filterstr.bv_len = so->s_filterstr.bv_len;
2244 /* Skip the AND/GE clause that we stuck on in front */
2245 if ( so->s_flags & PS_FIX_FILTER ) {
2246 op2->ors_filter = op->ors_filter->f_and->f_next;
2247 so->s_flags ^= PS_FIX_FILTER;
2249 op2->ors_filter = op->ors_filter;
2251 op2->ors_filter = filter_dup( op2->ors_filter, NULL );
2254 /* Copy any cached group ACLs individually */
2255 op2->o_groups = NULL;
2256 for ( g1=op->o_groups; g1; g1=g1->ga_next ) {
2257 g2 = ch_malloc( sizeof(GroupAssertion) + g1->ga_len );
2259 strcpy( g2->ga_ndn, g1->ga_ndn );
2260 g2->ga_next = op2->o_groups;
2263 /* Don't allow any further group caching */
2264 op2->o_do_not_cache = 1;
2266 /* Add op2 to conn so abandon will find us */
2267 op->o_conn->c_n_ops_executing++;
2268 op->o_conn->c_n_ops_completed--;
2269 LDAP_STAILQ_INSERT_TAIL( &op->o_conn->c_ops, op2, o_next );
2270 so->s_flags |= PS_IS_DETACHED;
2272 /* Prevent anyone else from trying to send a result for this op */
2277 syncprov_search_response( Operation *op, SlapReply *rs )
2279 searchstate *ss = op->o_callback->sc_private;
2280 slap_overinst *on = ss->ss_on;
2281 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2282 sync_control *srs = op->o_controls[slap_cids.sc_LDAPsync];
2284 if ( rs->sr_type == REP_SEARCH || rs->sr_type == REP_SEARCHREF ) {
2286 /* If we got a referral without a referral object, there's
2287 * something missing that we cannot replicate. Just ignore it.
2288 * The consumer will abort because we didn't send the expected
2291 if ( !rs->sr_entry ) {
2292 assert( rs->sr_entry != NULL );
2293 Debug( LDAP_DEBUG_ANY, "bogus referral in context\n",0,0,0 );
2294 return SLAP_CB_CONTINUE;
2296 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryCSN );
2297 if ( a == NULL && rs->sr_operational_attrs != NULL ) {
2298 a = attr_find( rs->sr_operational_attrs, slap_schema.si_ad_entryCSN );
2302 sid = slap_parse_csn_sid( &a->a_nvals[0] );
2304 /* Don't send changed entries back to the originator */
2305 if ( sid == srs->sr_state.sid && srs->sr_state.numcsns ) {
2306 Debug( LDAP_DEBUG_SYNC,
2307 "Entry %s changed by peer, ignored\n",
2308 rs->sr_entry->e_name.bv_val, 0, 0 );
2309 return LDAP_SUCCESS;
2312 /* If not a persistent search */
2314 /* Make sure entry is less than the snapshot'd contextCSN */
2315 for ( i=0; i<ss->ss_numcsns; i++ ) {
2316 if ( sid == ss->ss_sids[i] && ber_bvcmp( &a->a_nvals[0],
2317 &ss->ss_ctxcsn[i] ) > 0 ) {
2318 Debug( LDAP_DEBUG_SYNC,
2319 "Entry %s CSN %s greater than snapshot %s\n",
2320 rs->sr_entry->e_name.bv_val,
2321 a->a_nvals[0].bv_val,
2322 ss->ss_ctxcsn[i].bv_val );
2323 return LDAP_SUCCESS;
2328 /* Don't send old entries twice */
2329 if ( srs->sr_state.ctxcsn ) {
2330 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2331 if ( sid == srs->sr_state.sids[i] &&
2332 ber_bvcmp( &a->a_nvals[0],
2333 &srs->sr_state.ctxcsn[i] )<= 0 ) {
2334 Debug( LDAP_DEBUG_SYNC,
2335 "Entry %s CSN %s older or equal to ctx %s\n",
2336 rs->sr_entry->e_name.bv_val,
2337 a->a_nvals[0].bv_val,
2338 srs->sr_state.ctxcsn[i].bv_val );
2339 return LDAP_SUCCESS;
2344 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2346 rs->sr_ctrls[1] = NULL;
2347 rs->sr_flags |= REP_CTRLS_MUSTBEFREED;
2348 /* If we're in delta-sync mode, always send a cookie */
2349 if ( si->si_nopres && si->si_usehint && a ) {
2350 struct berval cookie;
2351 slap_compose_sync_cookie( op, &cookie, a->a_nvals, srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
2352 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2353 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 1, &cookie );
2354 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2356 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2357 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 0, NULL );
2359 } else if ( rs->sr_type == REP_RESULT && rs->sr_err == LDAP_SUCCESS ) {
2360 struct berval cookie = BER_BVNULL;
2362 if ( ( ss->ss_flags & SS_CHANGED ) &&
2363 ss->ss_ctxcsn && !BER_BVISNULL( &ss->ss_ctxcsn[0] )) {
2364 slap_compose_sync_cookie( op, &cookie, ss->ss_ctxcsn,
2365 srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
2367 Debug( LDAP_DEBUG_SYNC, "syncprov_search_response: cookie=%s\n", cookie.bv_val, 0, 0 );
2370 /* Is this a regular refresh?
2371 * Note: refresh never gets here if there were no changes
2374 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2376 rs->sr_ctrls[1] = NULL;
2377 rs->sr_flags |= REP_CTRLS_MUSTBEFREED;
2378 rs->sr_err = syncprov_done_ctrl( op, rs, rs->sr_ctrls,
2379 0, 1, &cookie, ( ss->ss_flags & SS_PRESENT ) ? LDAP_SYNC_REFRESH_PRESENTS :
2380 LDAP_SYNC_REFRESH_DELETES );
2381 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2383 /* It's RefreshAndPersist, transition to Persist phase */
2384 syncprov_sendinfo( op, rs, ( ss->ss_flags & SS_PRESENT ) ?
2385 LDAP_TAG_SYNC_REFRESH_PRESENT : LDAP_TAG_SYNC_REFRESH_DELETE,
2386 ( ss->ss_flags & SS_CHANGED ) ? &cookie : NULL,
2388 if ( !BER_BVISNULL( &cookie ))
2389 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2391 /* Detach this Op from frontend control */
2392 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
2394 /* But not if this connection was closed along the way */
2395 if ( op->o_abandon ) {
2396 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2397 /* syncprov_ab_cleanup will free this syncop */
2398 return SLAPD_ABANDON;
2401 ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex );
2402 /* Turn off the refreshing flag */
2403 ss->ss_so->s_flags ^= PS_IS_REFRESHING;
2405 syncprov_detach_op( op, ss->ss_so, on );
2407 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2409 /* If there are queued responses, fire them off */
2410 if ( ss->ss_so->s_res )
2411 syncprov_qstart( ss->ss_so );
2412 ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
2415 return LDAP_SUCCESS;
2419 return SLAP_CB_CONTINUE;
2423 syncprov_op_search( Operation *op, SlapReply *rs )
2425 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2426 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2428 int gotstate = 0, changed = 0, do_present = 0;
2429 syncops *sop = NULL;
2433 int i, *sids, numcsns;
2434 struct berval mincsn, maxcsn;
2438 if ( !(op->o_sync_mode & SLAP_SYNC_REFRESH) ) return SLAP_CB_CONTINUE;
2440 if ( op->ors_deref & LDAP_DEREF_SEARCHING ) {
2441 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR, "illegal value for derefAliases" );
2445 srs = op->o_controls[slap_cids.sc_LDAPsync];
2447 /* If this is a persistent search, set it up right away */
2448 if ( op->o_sync_mode & SLAP_SYNC_PERSIST ) {
2458 so.s_flags = PS_IS_REFRESHING | PS_FIND_BASE;
2459 /* syncprov_findbase expects to be called as a callback... */
2460 sc.sc_private = &opc;
2462 ldap_pvt_thread_mutex_init( &so.s_mutex );
2463 cb = op->o_callback;
2464 op->o_callback = ≻
2465 rs->sr_err = syncprov_findbase( op, &fc );
2466 op->o_callback = cb;
2467 ldap_pvt_thread_mutex_destroy( &so.s_mutex );
2469 if ( rs->sr_err != LDAP_SUCCESS ) {
2470 send_ldap_result( op, rs );
2473 sop = ch_malloc( sizeof( syncops ));
2475 ldap_pvt_thread_mutex_init( &sop->s_mutex );
2476 sop->s_rid = srs->sr_state.rid;
2477 sop->s_sid = srs->sr_state.sid;
2478 /* set refcount=2 to prevent being freed out from under us
2479 * by abandons that occur while we're running here
2483 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2484 while ( si->si_active ) {
2485 /* Wait for active mods to finish before proceeding, as they
2486 * may already have inspected the si_ops list looking for
2487 * consumers to replicate the change to. Using the log
2488 * doesn't help, as we may finish playing it before the
2489 * active mods gets added to it.
2491 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2492 if ( slapd_shutdown ) {
2494 return SLAPD_ABANDON;
2496 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
2497 ldap_pvt_thread_yield();
2498 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2500 sop->s_next = si->si_ops;
2502 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2505 /* snapshot the ctxcsn */
2506 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2507 numcsns = si->si_numcsns;
2509 ber_bvarray_dup_x( &ctxcsn, si->si_ctxcsn, op->o_tmpmemctx );
2510 sids = op->o_tmpalloc( numcsns * sizeof(int), op->o_tmpmemctx );
2511 for ( i=0; i<numcsns; i++ )
2512 sids[i] = si->si_sids[i];
2517 dirty = si->si_dirty;
2518 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2520 /* If we have a cookie, handle the PRESENT lookups */
2521 if ( srs->sr_state.ctxcsn ) {
2525 /* If we don't have any CSN of our own yet, pretend nothing
2531 if ( !si->si_nopres )
2532 do_present = SS_PRESENT;
2534 /* If there are SIDs we don't recognize in the cookie, drop them */
2535 for (i=0; i<srs->sr_state.numcsns; ) {
2536 for (j=i; j<numcsns; j++) {
2537 if ( srs->sr_state.sids[i] <= sids[j] ) {
2542 if ( j == numcsns || srs->sr_state.sids[i] != sids[j] ) {
2543 char *tmp = srs->sr_state.ctxcsn[i].bv_val;
2544 srs->sr_state.numcsns--;
2545 for ( j=i; j<srs->sr_state.numcsns; j++ ) {
2546 srs->sr_state.ctxcsn[j] = srs->sr_state.ctxcsn[j+1];
2547 srs->sr_state.sids[j] = srs->sr_state.sids[j+1];
2549 srs->sr_state.ctxcsn[j].bv_val = tmp;
2550 srs->sr_state.ctxcsn[j].bv_len = 0;
2556 if (srs->sr_state.numcsns != numcsns) {
2557 /* consumer doesn't have the right number of CSNs */
2558 changed = SS_CHANGED;
2559 if ( srs->sr_state.ctxcsn ) {
2560 ber_bvarray_free_x( srs->sr_state.ctxcsn, op->o_tmpmemctx );
2561 srs->sr_state.ctxcsn = NULL;
2563 if ( srs->sr_state.sids ) {
2564 slap_sl_free( srs->sr_state.sids, op->o_tmpmemctx );
2565 srs->sr_state.sids = NULL;
2567 srs->sr_state.numcsns = 0;
2571 /* Find the smallest CSN which differs from contextCSN */
2574 for ( i=0,j=0; i<srs->sr_state.numcsns; i++ ) {
2576 while ( srs->sr_state.sids[i] != sids[j] ) j++;
2577 if ( BER_BVISEMPTY( &maxcsn ) || ber_bvcmp( &maxcsn,
2578 &srs->sr_state.ctxcsn[i] ) < 0 ) {
2579 maxcsn = srs->sr_state.ctxcsn[i];
2582 newer = ber_bvcmp( &srs->sr_state.ctxcsn[i], &ctxcsn[j] );
2583 /* If our state is newer, tell consumer about changes */
2585 changed = SS_CHANGED;
2586 if ( BER_BVISEMPTY( &mincsn ) || ber_bvcmp( &mincsn,
2587 &srs->sr_state.ctxcsn[i] ) > 0 ) {
2588 mincsn = srs->sr_state.ctxcsn[i];
2591 } else if ( newer > 0 && sids[j] == slap_serverID ) {
2592 /* our state is older, complain to consumer */
2593 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
2594 rs->sr_text = "consumer state is newer than provider!";
2597 syncops **sp = &si->si_ops;
2599 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2600 while ( *sp != sop )
2601 sp = &(*sp)->s_next;
2603 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2606 rs->sr_ctrls = NULL;
2607 send_ldap_result( op, rs );
2611 if ( BER_BVISEMPTY( &mincsn )) {
2616 /* If nothing has changed, shortcut it */
2617 if ( !changed && !dirty ) {
2619 no_change: if ( !(op->o_sync_mode & SLAP_SYNC_PERSIST) ) {
2620 LDAPControl *ctrls[2];
2624 syncprov_done_ctrl( op, rs, ctrls, 0, 0,
2625 NULL, LDAP_SYNC_REFRESH_DELETES );
2626 rs->sr_ctrls = ctrls;
2627 rs->sr_err = LDAP_SUCCESS;
2628 send_ldap_result( op, rs );
2629 rs->sr_ctrls = NULL;
2635 /* Do we have a sessionlog for this search? */
2639 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
2640 /* Are there any log entries, and is the consumer state
2641 * present in the session log?
2643 if ( sl->sl_num > 0 ) {
2645 for ( i=0; i<sl->sl_numcsns; i++ ) {
2646 /* SID not present == new enough */
2647 if ( minsid < sl->sl_sids[i] ) {
2652 if ( minsid == sl->sl_sids[i] ) {
2654 if ( ber_bvcmp( &mincsn, &sl->sl_mincsn[i] ) >= 0 )
2659 /* SID not present == new enough */
2660 if ( i == sl->sl_numcsns )
2665 /* mutex is unlocked in playlog */
2666 syncprov_playlog( op, rs, sl, srs, ctxcsn, numcsns, sids );
2668 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
2671 /* Is the CSN still present in the database? */
2672 if ( syncprov_findcsn( op, FIND_CSN, &mincsn ) != LDAP_SUCCESS ) {
2673 /* No, so a reload is required */
2674 /* the 2.2 consumer doesn't send this hint */
2675 if ( si->si_usehint && srs->sr_rhint == 0 ) {
2677 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2679 op->o_tmpfree( sids, op->o_tmpmemctx );
2680 rs->sr_err = LDAP_SYNC_REFRESH_REQUIRED;
2681 rs->sr_text = "sync cookie is stale";
2684 if ( srs->sr_state.ctxcsn ) {
2685 ber_bvarray_free_x( srs->sr_state.ctxcsn, op->o_tmpmemctx );
2686 srs->sr_state.ctxcsn = NULL;
2688 if ( srs->sr_state.sids ) {
2689 slap_sl_free( srs->sr_state.sids, op->o_tmpmemctx );
2690 srs->sr_state.sids = NULL;
2692 srs->sr_state.numcsns = 0;
2695 /* If changed and doing Present lookup, send Present UUIDs */
2696 if ( do_present && syncprov_findcsn( op, FIND_PRESENT, 0 ) !=
2699 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2701 op->o_tmpfree( sids, op->o_tmpmemctx );
2706 /* No consumer state, assume something has changed */
2707 changed = SS_CHANGED;
2711 /* Append CSN range to search filter, save original filter
2712 * for persistent search evaluation
2715 ldap_pvt_thread_mutex_lock( &sop->s_mutex );
2716 sop->s_filterstr = op->ors_filterstr;
2717 /* correct the refcount that was set to 2 before */
2721 /* If something changed, find the changes */
2722 if ( gotstate && ( changed || dirty ) ) {
2723 Filter *fand, *fava;
2725 fand = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2726 fand->f_choice = LDAP_FILTER_AND;
2727 fand->f_next = NULL;
2728 fava = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2730 fava->f_choice = LDAP_FILTER_GE;
2731 fava->f_ava = op->o_tmpalloc( sizeof(AttributeAssertion), op->o_tmpmemctx );
2732 fava->f_ava->aa_desc = slap_schema.si_ad_entryCSN;
2733 #ifdef LDAP_COMP_MATCH
2734 fava->f_ava->aa_cf = NULL;
2736 ber_dupbv_x( &fava->f_ava->aa_value, &mincsn, op->o_tmpmemctx );
2737 fava->f_next = op->ors_filter;
2738 op->ors_filter = fand;
2739 filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2741 sop->s_flags |= PS_FIX_FILTER;
2745 ldap_pvt_thread_mutex_unlock( &sop->s_mutex );
2748 /* Let our callback add needed info to returned entries */
2749 cb = op->o_tmpcalloc(1, sizeof(slap_callback)+sizeof(searchstate), op->o_tmpmemctx);
2750 ss = (searchstate *)(cb+1);
2753 ss->ss_flags = do_present | changed;
2754 ss->ss_ctxcsn = ctxcsn;
2755 ss->ss_numcsns = numcsns;
2757 cb->sc_response = syncprov_search_response;
2758 cb->sc_private = ss;
2759 cb->sc_next = op->o_callback;
2760 op->o_callback = cb;
2762 /* If this is a persistent search and no changes were reported during
2763 * the refresh phase, just invoke the response callback to transition
2764 * us into persist phase
2766 if ( !changed && !dirty ) {
2767 rs->sr_err = LDAP_SUCCESS;
2768 rs->sr_nentries = 0;
2769 send_ldap_result( op, rs );
2772 return SLAP_CB_CONTINUE;
2776 syncprov_operational(
2780 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2781 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2783 /* This prevents generating unnecessarily; frontend will strip
2784 * any statically stored copy.
2786 if ( op->o_sync != SLAP_CONTROL_NONE )
2787 return SLAP_CB_CONTINUE;
2789 if ( rs->sr_entry &&
2790 dn_match( &rs->sr_entry->e_nname, &si->si_contextdn )) {
2792 if ( SLAP_OPATTRS( rs->sr_attr_flags ) ||
2793 ad_inlist( slap_schema.si_ad_contextCSN, rs->sr_attrs )) {
2794 Attribute *a, **ap = NULL;
2796 for ( a=rs->sr_entry->e_attrs; a; a=a->a_next ) {
2797 if ( a->a_desc == slap_schema.si_ad_contextCSN )
2801 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2802 if ( si->si_ctxcsn ) {
2804 for ( ap = &rs->sr_operational_attrs; *ap;
2805 ap=&(*ap)->a_next );
2807 a = attr_alloc( slap_schema.si_ad_contextCSN );
2812 if ( rs_entry2modifiable( op, rs, on )) {
2813 a = attr_find( rs->sr_entry->e_attrs,
2814 slap_schema.si_ad_contextCSN );
2816 if ( a->a_nvals != a->a_vals ) {
2817 ber_bvarray_free( a->a_nvals );
2820 ber_bvarray_free( a->a_vals );
2824 attr_valadd( a, si->si_ctxcsn, si->si_ctxcsn, si->si_numcsns );
2826 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2829 return SLAP_CB_CONTINUE;
2839 static ConfigDriver sp_cf_gen;
2841 static ConfigTable spcfg[] = {
2842 { "syncprov-checkpoint", "ops> <minutes", 3, 3, 0, ARG_MAGIC|SP_CHKPT,
2843 sp_cf_gen, "( OLcfgOvAt:1.1 NAME 'olcSpCheckpoint' "
2844 "DESC 'ContextCSN checkpoint interval in ops and minutes' "
2845 "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
2846 { "syncprov-sessionlog", "ops", 2, 2, 0, ARG_INT|ARG_MAGIC|SP_SESSL,
2847 sp_cf_gen, "( OLcfgOvAt:1.2 NAME 'olcSpSessionlog' "
2848 "DESC 'Session log size in ops' "
2849 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
2850 { "syncprov-nopresent", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_NOPRES,
2851 sp_cf_gen, "( OLcfgOvAt:1.3 NAME 'olcSpNoPresent' "
2852 "DESC 'Omit Present phase processing' "
2853 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2854 { "syncprov-reloadhint", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_USEHINT,
2855 sp_cf_gen, "( OLcfgOvAt:1.4 NAME 'olcSpReloadHint' "
2856 "DESC 'Observe Reload Hint in Request control' "
2857 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2858 { NULL, NULL, 0, 0, 0, ARG_IGNORED }
2861 static ConfigOCs spocs[] = {
2862 { "( OLcfgOvOc:1.1 "
2863 "NAME 'olcSyncProvConfig' "
2864 "DESC 'SyncRepl Provider configuration' "
2865 "SUP olcOverlayConfig "
2866 "MAY ( olcSpCheckpoint "
2867 "$ olcSpSessionlog "
2869 "$ olcSpReloadHint "
2871 Cft_Overlay, spcfg },
2876 sp_cf_gen(ConfigArgs *c)
2878 slap_overinst *on = (slap_overinst *)c->bi;
2879 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2882 if ( c->op == SLAP_CONFIG_EMIT ) {
2883 switch ( c->type ) {
2885 if ( si->si_chkops || si->si_chktime ) {
2887 /* we assume si_chktime is a multiple of 60
2888 * because the parsed value was originally
2889 * multiplied by 60 */
2890 bv.bv_len = snprintf( c->cr_msg, sizeof( c->cr_msg ),
2891 "%d %d", si->si_chkops, si->si_chktime/60 );
2892 if ( bv.bv_len >= sizeof( c->cr_msg ) ) {
2895 bv.bv_val = c->cr_msg;
2896 value_add_one( &c->rvalue_vals, &bv );
2903 if ( si->si_logs ) {
2904 c->value_int = si->si_logs->sl_size;
2910 if ( si->si_nopres ) {
2917 if ( si->si_usehint ) {
2925 } else if ( c->op == LDAP_MOD_DELETE ) {
2926 switch ( c->type ) {
2933 si->si_logs->sl_size = 0;
2935 rc = LDAP_NO_SUCH_ATTRIBUTE;
2938 if ( si->si_nopres )
2941 rc = LDAP_NO_SUCH_ATTRIBUTE;
2944 if ( si->si_usehint )
2947 rc = LDAP_NO_SUCH_ATTRIBUTE;
2952 switch ( c->type ) {
2954 if ( lutil_atoi( &si->si_chkops, c->argv[1] ) != 0 ) {
2955 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint ops # \"%s\"",
2956 c->argv[0], c->argv[1] );
2957 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2958 "%s: %s\n", c->log, c->cr_msg, 0 );
2959 return ARG_BAD_CONF;
2961 if ( si->si_chkops <= 0 ) {
2962 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint ops # \"%d\"",
2963 c->argv[0], si->si_chkops );
2964 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2965 "%s: %s\n", c->log, c->cr_msg, 0 );
2966 return ARG_BAD_CONF;
2968 if ( lutil_atoi( &si->si_chktime, c->argv[2] ) != 0 ) {
2969 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint time \"%s\"",
2970 c->argv[0], c->argv[1] );
2971 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2972 "%s: %s\n", c->log, c->cr_msg, 0 );
2973 return ARG_BAD_CONF;
2975 if ( si->si_chktime <= 0 ) {
2976 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint time \"%d\"",
2977 c->argv[0], si->si_chkops );
2978 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2979 "%s: %s\n", c->log, c->cr_msg, 0 );
2980 return ARG_BAD_CONF;
2982 si->si_chktime *= 60;
2986 int size = c->value_int;
2989 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s size %d is negative",
2991 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2992 "%s: %s\n", c->log, c->cr_msg, 0 );
2993 return ARG_BAD_CONF;
2997 sl = ch_malloc( sizeof( sessionlog ));
2998 sl->sl_mincsn = NULL;
3002 sl->sl_head = sl->sl_tail = NULL;
3003 ldap_pvt_thread_mutex_init( &sl->sl_mutex );
3010 si->si_nopres = c->value_int;
3013 si->si_usehint = c->value_int;
3019 /* ITS#3456 we cannot run this search on the main thread, must use a
3020 * child thread in order to insure we have a big enough stack.
3027 syncprov_findcsn( ptr, FIND_MAXCSN, 0 );
3032 /* Read any existing contextCSN from the underlying db.
3033 * Then search for any entries newer than that. If no value exists,
3034 * just generate it. Cache whatever result.
3042 slap_overinst *on = (slap_overinst *) be->bd_info;
3043 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3045 Connection conn = { 0 };
3046 OperationBuffer opbuf;
3051 void *thrctx = NULL;
3053 if ( !SLAP_LASTMOD( be )) {
3054 Debug( LDAP_DEBUG_ANY,
3055 "syncprov_db_open: invalid config, lastmod must be enabled\n", 0, 0, 0 );
3059 if ( slapMode & SLAP_TOOL_MODE ) {
3063 rc = overlay_register_control( be, LDAP_CONTROL_SYNC );
3068 thrctx = ldap_pvt_thread_pool_context();
3069 connection_fake_init2( &conn, &opbuf, thrctx, 0 );
3072 op->o_dn = be->be_rootdn;
3073 op->o_ndn = be->be_rootndn;
3075 if ( SLAP_SYNC_SUBENTRY( be )) {
3076 build_new_dn( &si->si_contextdn, be->be_nsuffix,
3077 (struct berval *)&slap_ldapsync_cn_bv, NULL );
3079 si->si_contextdn = be->be_nsuffix[0];
3081 rc = overlay_entry_get_ov( op, &si->si_contextdn, NULL,
3082 slap_schema.si_ad_contextCSN, 0, &e, on );
3085 ldap_pvt_thread_t tid;
3087 a = attr_find( e->e_attrs, slap_schema.si_ad_contextCSN );
3089 ber_bvarray_dup_x( &si->si_ctxcsn, a->a_vals, NULL );
3090 si->si_numcsns = a->a_numvals;
3091 si->si_sids = slap_parse_csn_sids( si->si_ctxcsn, a->a_numvals, NULL );
3092 slap_sort_csn_sids( si->si_ctxcsn, si->si_sids, si->si_numcsns, NULL );
3094 overlay_entry_release_ov( op, e, 0, on );
3095 if ( si->si_ctxcsn && !SLAP_DBCLEAN( be )) {
3096 op->o_tag = LDAP_REQ_SEARCH;
3097 op->o_req_dn = be->be_suffix[0];
3098 op->o_req_ndn = be->be_nsuffix[0];
3099 op->ors_scope = LDAP_SCOPE_SUBTREE;
3100 ldap_pvt_thread_create( &tid, 0, syncprov_db_otask, op );
3101 ldap_pvt_thread_join( tid, NULL );
3105 /* Didn't find a contextCSN, should we generate one? */
3106 if ( !si->si_ctxcsn ) {
3107 char csnbuf[ LDAP_PVT_CSNSTR_BUFSIZE ];
3110 if ( SLAP_SYNC_SHADOW( op->o_bd )) {
3111 /* If we're also a consumer, then don't generate anything.
3112 * Wait for our provider to send it to us, or for a local
3113 * modify if we have multimaster.
3117 csn.bv_val = csnbuf;
3118 csn.bv_len = sizeof( csnbuf );
3119 slap_get_csn( op, &csn, 0 );
3120 value_add_one( &si->si_ctxcsn, &csn );
3122 si->si_sids = ch_malloc( sizeof(int) );
3123 si->si_sids[0] = slap_serverID;
3125 /* make sure we do a checkpoint on close */
3129 /* Initialize the sessionlog mincsn */
3130 if ( si->si_logs && si->si_numcsns ) {
3131 sessionlog *sl = si->si_logs;
3133 ber_bvarray_dup_x( &sl->sl_mincsn, si->si_ctxcsn, NULL );
3134 sl->sl_numcsns = si->si_numcsns;
3135 sl->sl_sids = ch_malloc( si->si_numcsns * sizeof(int) );
3136 for ( i=0; i < si->si_numcsns; i++ )
3137 sl->sl_sids[i] = si->si_sids[i];
3141 op->o_bd->bd_info = (BackendInfo *)on;
3145 /* Write the current contextCSN into the underlying db.
3153 slap_overinst *on = (slap_overinst *) be->bd_info;
3154 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3155 #ifdef SLAP_CONFIG_DELETE
3156 syncops *so, *sonext;
3157 #endif /* SLAP_CONFIG_DELETE */
3159 if ( slapMode & SLAP_TOOL_MODE ) {
3162 if ( si->si_numops ) {
3163 Connection conn = {0};
3164 OperationBuffer opbuf;
3168 thrctx = ldap_pvt_thread_pool_context();
3169 connection_fake_init2( &conn, &opbuf, thrctx, 0 );
3172 op->o_dn = be->be_rootdn;
3173 op->o_ndn = be->be_rootndn;
3174 syncprov_checkpoint( op, on );
3177 #ifdef SLAP_CONFIG_DELETE
3178 if ( !slapd_shutdown ) {
3179 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
3180 for ( so=si->si_ops, sonext=so; so; so=sonext ) {
3181 SlapReply rs = {REP_RESULT};
3182 rs.sr_err = LDAP_UNAVAILABLE;
3183 send_ldap_result( so->s_op, &rs );
3185 syncprov_drop_psearch( so, 0);
3188 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
3190 overlay_unregister_control( be, LDAP_CONTROL_SYNC );
3191 #endif /* SLAP_CONFIG_DELETE */
3202 slap_overinst *on = (slap_overinst *)be->bd_info;
3203 syncprov_info_t *si;
3205 if ( SLAP_ISGLOBALOVERLAY( be ) ) {
3206 Debug( LDAP_DEBUG_ANY,
3207 "syncprov must be instantiated within a database.\n",
3212 si = ch_calloc(1, sizeof(syncprov_info_t));
3213 on->on_bi.bi_private = si;
3214 ldap_pvt_thread_rdwr_init( &si->si_csn_rwlock );
3215 ldap_pvt_thread_mutex_init( &si->si_ops_mutex );
3216 ldap_pvt_thread_mutex_init( &si->si_mods_mutex );
3217 ldap_pvt_thread_mutex_init( &si->si_resp_mutex );
3219 csn_anlist[0].an_desc = slap_schema.si_ad_entryCSN;
3220 csn_anlist[0].an_name = slap_schema.si_ad_entryCSN->ad_cname;
3221 csn_anlist[1].an_desc = slap_schema.si_ad_entryUUID;
3222 csn_anlist[1].an_name = slap_schema.si_ad_entryUUID->ad_cname;
3224 uuid_anlist[0].an_desc = slap_schema.si_ad_entryUUID;
3225 uuid_anlist[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
3231 syncprov_db_destroy(
3236 slap_overinst *on = (slap_overinst *)be->bd_info;
3237 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3240 if ( si->si_logs ) {
3241 sessionlog *sl = si->si_logs;
3242 slog_entry *se = sl->sl_head;
3245 slog_entry *se_next = se->se_next;
3249 if ( sl->sl_mincsn )
3250 ber_bvarray_free( sl->sl_mincsn );
3252 ch_free( sl->sl_sids );
3254 ldap_pvt_thread_mutex_destroy(&si->si_logs->sl_mutex);
3255 ch_free( si->si_logs );
3257 if ( si->si_ctxcsn )
3258 ber_bvarray_free( si->si_ctxcsn );
3260 ch_free( si->si_sids );
3261 ldap_pvt_thread_mutex_destroy( &si->si_resp_mutex );
3262 ldap_pvt_thread_mutex_destroy( &si->si_mods_mutex );
3263 ldap_pvt_thread_mutex_destroy( &si->si_ops_mutex );
3264 ldap_pvt_thread_rdwr_destroy( &si->si_csn_rwlock );
3271 static int syncprov_parseCtrl (
3277 BerElementBuffer berbuf;
3278 BerElement *ber = (BerElement *)&berbuf;
3281 struct berval cookie = BER_BVNULL;
3285 if ( op->o_sync != SLAP_CONTROL_NONE ) {
3286 rs->sr_text = "Sync control specified multiple times";
3287 return LDAP_PROTOCOL_ERROR;
3290 if ( op->o_pagedresults != SLAP_CONTROL_NONE ) {
3291 rs->sr_text = "Sync control specified with pagedResults control";
3292 return LDAP_PROTOCOL_ERROR;
3295 if ( BER_BVISNULL( &ctrl->ldctl_value ) ) {
3296 rs->sr_text = "Sync control value is absent";
3297 return LDAP_PROTOCOL_ERROR;
3300 if ( BER_BVISEMPTY( &ctrl->ldctl_value ) ) {
3301 rs->sr_text = "Sync control value is empty";
3302 return LDAP_PROTOCOL_ERROR;
3305 /* Parse the control value
3306 * syncRequestValue ::= SEQUENCE {
3311 * refreshAndPersist (3)
3313 * cookie syncCookie OPTIONAL
3317 ber_init2( ber, &ctrl->ldctl_value, 0 );
3319 if ( (tag = ber_scanf( ber, "{i" /*}*/, &mode )) == LBER_ERROR ) {
3320 rs->sr_text = "Sync control : mode decoding error";
3321 return LDAP_PROTOCOL_ERROR;
3325 case LDAP_SYNC_REFRESH_ONLY:
3326 mode = SLAP_SYNC_REFRESH;
3328 case LDAP_SYNC_REFRESH_AND_PERSIST:
3329 mode = SLAP_SYNC_REFRESH_AND_PERSIST;
3332 rs->sr_text = "Sync control : unknown update mode";
3333 return LDAP_PROTOCOL_ERROR;
3336 tag = ber_peek_tag( ber, &len );
3338 if ( tag == LDAP_TAG_SYNC_COOKIE ) {
3339 if (( ber_scanf( ber, /*{*/ "m", &cookie )) == LBER_ERROR ) {
3340 rs->sr_text = "Sync control : cookie decoding error";
3341 return LDAP_PROTOCOL_ERROR;
3343 tag = ber_peek_tag( ber, &len );
3345 if ( tag == LDAP_TAG_RELOAD_HINT ) {
3346 if (( ber_scanf( ber, /*{*/ "b", &rhint )) == LBER_ERROR ) {
3347 rs->sr_text = "Sync control : rhint decoding error";
3348 return LDAP_PROTOCOL_ERROR;
3351 if (( ber_scanf( ber, /*{*/ "}")) == LBER_ERROR ) {
3352 rs->sr_text = "Sync control : decoding error";
3353 return LDAP_PROTOCOL_ERROR;
3355 sr = op->o_tmpcalloc( 1, sizeof(struct sync_control), op->o_tmpmemctx );
3356 sr->sr_rhint = rhint;
3357 if (!BER_BVISNULL(&cookie)) {
3358 ber_dupbv_x( &sr->sr_state.octet_str, &cookie, op->o_tmpmemctx );
3359 /* If parse fails, pretend no cookie was sent */
3360 if ( slap_parse_sync_cookie( &sr->sr_state, op->o_tmpmemctx ) ||
3361 sr->sr_state.rid == -1 ) {
3362 if ( sr->sr_state.ctxcsn ) {
3363 ber_bvarray_free_x( sr->sr_state.ctxcsn, op->o_tmpmemctx );
3364 sr->sr_state.ctxcsn = NULL;
3366 sr->sr_state.numcsns = 0;
3370 op->o_controls[slap_cids.sc_LDAPsync] = sr;
3372 op->o_sync = ctrl->ldctl_iscritical
3373 ? SLAP_CONTROL_CRITICAL
3374 : SLAP_CONTROL_NONCRITICAL;
3376 op->o_sync_mode |= mode; /* o_sync_mode shares o_sync */
3378 return LDAP_SUCCESS;
3381 /* This overlay is set up for dynamic loading via moduleload. For static
3382 * configuration, you'll need to arrange for the slap_overinst to be
3383 * initialized and registered by some other function inside slapd.
3386 static slap_overinst syncprov;
3389 syncprov_initialize()
3393 rc = register_supported_control( LDAP_CONTROL_SYNC,
3394 SLAP_CTRL_SEARCH, NULL,
3395 syncprov_parseCtrl, &slap_cids.sc_LDAPsync );
3396 if ( rc != LDAP_SUCCESS ) {
3397 Debug( LDAP_DEBUG_ANY,
3398 "syncprov_init: Failed to register control %d\n", rc, 0, 0 );
3402 syncprov.on_bi.bi_type = "syncprov";
3403 syncprov.on_bi.bi_db_init = syncprov_db_init;
3404 syncprov.on_bi.bi_db_destroy = syncprov_db_destroy;
3405 syncprov.on_bi.bi_db_open = syncprov_db_open;
3406 syncprov.on_bi.bi_db_close = syncprov_db_close;
3408 syncprov.on_bi.bi_op_abandon = syncprov_op_abandon;
3409 syncprov.on_bi.bi_op_cancel = syncprov_op_abandon;
3411 syncprov.on_bi.bi_op_add = syncprov_op_mod;
3412 syncprov.on_bi.bi_op_compare = syncprov_op_compare;
3413 syncprov.on_bi.bi_op_delete = syncprov_op_mod;
3414 syncprov.on_bi.bi_op_modify = syncprov_op_mod;
3415 syncprov.on_bi.bi_op_modrdn = syncprov_op_mod;
3416 syncprov.on_bi.bi_op_search = syncprov_op_search;
3417 syncprov.on_bi.bi_extended = syncprov_op_extended;
3418 syncprov.on_bi.bi_operational = syncprov_operational;
3420 syncprov.on_bi.bi_cf_ocs = spocs;
3422 generic_filter.f_desc = slap_schema.si_ad_objectClass;
3424 rc = config_register_schema( spcfg, spocs );
3425 if ( rc ) return rc;
3427 return overlay_register( &syncprov );
3430 #if SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC
3432 init_module( int argc, char *argv[] )
3434 return syncprov_initialize();
3436 #endif /* SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC */
3438 #endif /* defined(SLAPD_OVER_SYNCPROV) */