2 /* syncprov.c - syncrepl provider */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2004-2005 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>
29 /* A modify request on a particular entry */
30 typedef struct modinst {
31 struct modinst *mi_next;
35 typedef struct modtarget {
36 struct modinst *mt_mods;
37 struct modinst *mt_tail;
39 ldap_pvt_thread_mutex_t mt_mutex;
42 /* A queued result of a persistent search */
43 typedef struct syncres {
44 struct syncres *s_next;
53 /* Record of a persistent search */
54 typedef struct syncops {
55 struct syncops *s_next;
56 struct berval s_base; /* ndn of search base */
57 ID s_eid; /* entryID of search base */
58 Operation *s_op; /* search op */
60 struct berval s_filterstr;
61 int s_flags; /* search status */
62 int s_inuse; /* reference count */
63 struct syncres *s_res;
64 struct syncres *s_restail;
65 ldap_pvt_thread_mutex_t s_mutex;
68 /* A received sync control */
69 typedef struct sync_control {
70 struct sync_cookie sr_state;
74 #if 0 /* moved back to slap.h */
75 #define o_sync o_ctrlflag[slap_cids.sc_LDAPsync]
77 /* o_sync_mode uses data bits of o_sync */
78 #define o_sync_mode o_ctrlflag[slap_cids.sc_LDAPsync]
80 #define SLAP_SYNC_NONE (LDAP_SYNC_NONE<<SLAP_CONTROL_SHIFT)
81 #define SLAP_SYNC_REFRESH (LDAP_SYNC_REFRESH_ONLY<<SLAP_CONTROL_SHIFT)
82 #define SLAP_SYNC_PERSIST (LDAP_SYNC_RESERVED<<SLAP_CONTROL_SHIFT)
83 #define SLAP_SYNC_REFRESH_AND_PERSIST (LDAP_SYNC_REFRESH_AND_PERSIST<<SLAP_CONTROL_SHIFT)
85 #define PS_IS_REFRESHING 0x01
86 #define PS_IS_DETACHED 0x02
88 /* Record of which searches matched at premodify step */
89 typedef struct syncmatches {
90 struct syncmatches *sm_next;
94 /* Session log data */
95 typedef struct slog_entry {
96 struct slog_entry *se_next;
97 struct berval se_uuid;
102 typedef struct sessionlog {
103 struct berval sl_mincsn;
108 ldap_pvt_thread_mutex_t sl_mutex;
111 /* The main state for this overlay */
112 typedef struct syncprov_info_t {
114 struct berval si_ctxcsn; /* ldapsync context */
115 int si_chkops; /* checkpointing info */
117 int si_numops; /* number of ops since last checkpoint */
118 time_t si_chklast; /* time of last checkpoint */
119 Avlnode *si_mods; /* entries being modified */
121 ldap_pvt_thread_mutex_t si_csn_mutex;
122 ldap_pvt_thread_mutex_t si_ops_mutex;
123 ldap_pvt_thread_mutex_t si_mods_mutex;
124 char si_ctxcsnbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
127 typedef struct opcookie {
129 syncmatches *smatches;
130 struct berval sdn; /* DN of entry, for deletes */
132 struct berval suuid; /* UUID of entry */
133 struct berval sctxcsn;
134 int sreference; /* Is the entry a reference? */
137 typedef struct fbase_cookie {
138 struct berval *fdn; /* DN of a modified entry, for scope testing */
139 syncops *fss; /* persistent search we're testing against */
140 int fbase; /* if TRUE we found the search base and it's still valid */
141 int fscope; /* if TRUE then fdn is within the psearch scope */
144 static AttributeName csn_anlist[2];
145 static AttributeName uuid_anlist[2];
147 /* Build a LDAPsync intermediate state control */
153 int entry_sync_state,
157 struct berval *cookie )
162 const char *text = NULL;
164 BerElementBuffer berbuf;
165 BerElement *ber = (BerElement *)&berbuf;
167 struct berval entryuuid_bv = BER_BVNULL;
169 ber_init2( ber, 0, LBER_USE_DER );
170 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
172 ctrls[num_ctrls] = op->o_tmpalloc( sizeof ( LDAPControl ), op->o_tmpmemctx );
174 for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
175 AttributeDescription *desc = a->a_desc;
176 if ( desc == slap_schema.si_ad_entryUUID ) {
177 entryuuid_bv = a->a_nvals[0];
182 if ( send_cookie && cookie ) {
183 ber_printf( ber, "{eOON}",
184 entry_sync_state, &entryuuid_bv, cookie );
186 ber_printf( ber, "{eON}",
187 entry_sync_state, &entryuuid_bv );
190 ctrls[num_ctrls]->ldctl_oid = LDAP_CONTROL_SYNC_STATE;
191 ctrls[num_ctrls]->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
192 ret = ber_flatten2( ber, &ctrls[num_ctrls]->ldctl_value, 1 );
197 Debug( LDAP_DEBUG_TRACE,
198 "slap_build_sync_ctrl: ber_flatten2 failed\n",
200 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
207 /* Build a LDAPsync final state control */
215 struct berval *cookie,
219 BerElementBuffer berbuf;
220 BerElement *ber = (BerElement *)&berbuf;
222 ber_init2( ber, NULL, LBER_USE_DER );
223 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
225 ctrls[num_ctrls] = op->o_tmpalloc( sizeof ( LDAPControl ), op->o_tmpmemctx );
227 ber_printf( ber, "{" );
228 if ( send_cookie && cookie ) {
229 ber_printf( ber, "O", cookie );
231 if ( refreshDeletes == LDAP_SYNC_REFRESH_DELETES ) {
232 ber_printf( ber, "b", refreshDeletes );
234 ber_printf( ber, "N}" );
236 ctrls[num_ctrls]->ldctl_oid = LDAP_CONTROL_SYNC_DONE;
237 ctrls[num_ctrls]->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
238 ret = ber_flatten2( ber, &ctrls[num_ctrls]->ldctl_value, 1 );
243 Debug( LDAP_DEBUG_TRACE,
244 "syncprov_done_ctrl: ber_flatten2 failed\n",
246 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
254 /* Generate state based on session log - not implemented yet */
256 syncprov_state_ctrl_from_slog(
259 struct slog_entry *slog_e,
260 int entry_sync_state,
264 struct berval *cookie)
269 const char *text = NULL;
271 BerElementBuffer berbuf;
272 BerElement *ber = (BerElement *)&berbuf;
274 struct berval entryuuid_bv = BER_BVNULL;
276 ber_init2( ber, NULL, LBER_USE_DER );
277 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
279 ctrls[num_ctrls] = ch_malloc ( sizeof ( LDAPControl ) );
281 entryuuid_bv = slog_e->sl_uuid;
283 if ( send_cookie && cookie ) {
284 ber_printf( ber, "{eOON}",
285 entry_sync_state, &entryuuid_bv, cookie );
287 ber_printf( ber, "{eON}",
288 entry_sync_state, &entryuuid_bv );
291 ctrls[num_ctrls]->ldctl_oid = LDAP_CONTROL_SYNC_STATE;
292 ctrls[num_ctrls]->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
293 ret = ber_flatten2( ber, &ctrls[num_ctrls]->ldctl_value, 1 );
298 Debug( LDAP_DEBUG_TRACE,
299 "slap_build_sync_ctrl: ber_flatten2 failed\n",
301 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
314 struct berval *cookie,
319 BerElementBuffer berbuf;
320 BerElement *ber = (BerElement *)&berbuf;
321 struct berval rspdata;
325 ber_init2( ber, NULL, LBER_USE_DER );
326 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
330 case LDAP_TAG_SYNC_NEW_COOKIE:
331 ber_printf( ber, "tO", type, cookie );
333 case LDAP_TAG_SYNC_REFRESH_DELETE:
334 case LDAP_TAG_SYNC_REFRESH_PRESENT:
335 ber_printf( ber, "t{", type );
337 ber_printf( ber, "O", cookie );
339 if ( refreshDone == 0 ) {
340 ber_printf( ber, "b", refreshDone );
342 ber_printf( ber, "N}" );
344 case LDAP_TAG_SYNC_ID_SET:
345 ber_printf( ber, "t{", type );
347 ber_printf( ber, "O", cookie );
349 if ( refreshDeletes == 1 ) {
350 ber_printf( ber, "b", refreshDeletes );
352 ber_printf( ber, "[W]", syncUUIDs );
353 ber_printf( ber, "N}" );
356 Debug( LDAP_DEBUG_TRACE,
357 "syncprov_sendinfo: invalid syncinfo type (%d)\n",
363 ret = ber_flatten2( ber, &rspdata, 0 );
366 Debug( LDAP_DEBUG_TRACE,
367 "syncprov_sendinfo: ber_flatten2 failed\n",
369 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
373 rs->sr_rspoid = LDAP_SYNC_INFO;
374 rs->sr_rspdata = &rspdata;
375 send_ldap_intermediate( op, rs );
376 rs->sr_rspdata = NULL;
382 /* Find a modtarget in an AVL tree */
384 sp_avl_cmp( const void *c1, const void *c2 )
386 const modtarget *m1, *m2;
390 rc = m1->mt_op->o_req_ndn.bv_len - m2->mt_op->o_req_ndn.bv_len;
393 return ber_bvcmp( &m1->mt_op->o_req_ndn, &m2->mt_op->o_req_ndn );
396 /* syncprov_findbase:
397 * finds the true DN of the base of a search (with alias dereferencing) and
398 * checks to make sure the base entry doesn't get replaced with a different
399 * entry (e.g., swapping trees via ModDN, or retargeting an alias). If a
400 * change is detected, any persistent search on this base must be terminated /
402 * On the first call, we just save the DN and entryID. On subsequent calls
403 * we compare the DN and entryID with the saved values.
406 findbase_cb( Operation *op, SlapReply *rs )
408 slap_callback *sc = op->o_callback;
410 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
411 fbase_cookie *fc = sc->sc_private;
413 /* If no entryID, we're looking for the first time.
414 * Just store whatever we got.
416 if ( fc->fss->s_eid == NOID ) {
418 fc->fss->s_eid = rs->sr_entry->e_id;
419 ber_dupbv( &fc->fss->s_base, &rs->sr_entry->e_nname );
421 } else if ( rs->sr_entry->e_id == fc->fss->s_eid &&
422 dn_match( &rs->sr_entry->e_nname, &fc->fss->s_base )) {
424 /* OK, the DN is the same and the entryID is the same. Now
425 * see if the fdn resides in the scope.
428 switch ( fc->fss->s_op->ors_scope ) {
429 case LDAP_SCOPE_BASE:
430 fc->fscope = dn_match( fc->fdn, &rs->sr_entry->e_nname );
432 case LDAP_SCOPE_ONELEVEL: {
434 dnParent( fc->fdn, &pdn );
435 fc->fscope = dn_match( &pdn, &rs->sr_entry->e_nname );
437 case LDAP_SCOPE_SUBTREE:
438 fc->fscope = dnIsSuffix( fc->fdn, &rs->sr_entry->e_nname );
440 #ifdef LDAP_SCOPE_SUBORDINATE
441 case LDAP_SCOPE_SUBORDINATE:
442 fc->fscope = dnIsSuffix( fc->fdn, &rs->sr_entry->e_nname ) &&
443 !dn_match( fc->fdn, &rs->sr_entry->e_nname );
449 if ( rs->sr_err != LDAP_SUCCESS ) {
450 Debug( LDAP_DEBUG_ANY, "findbase failed! %d\n", rs->sr_err,0,0 );
456 syncprov_findbase( Operation *op, fbase_cookie *fc )
458 opcookie *opc = op->o_callback->sc_private;
459 slap_overinst *on = opc->son;
460 syncprov_info_t *si = on->on_bi.bi_private;
462 slap_callback cb = {0};
464 SlapReply frs = { REP_RESULT };
469 cb.sc_response = findbase_cb;
472 fop.o_sync_mode &= SLAP_CONTROL_MASK; /* turn off sync mode */
473 fop.o_callback = &cb;
474 fop.o_tag = LDAP_REQ_SEARCH;
475 fop.ors_scope = LDAP_SCOPE_BASE;
476 fop.ors_deref = fc->fss->s_op->ors_deref;
477 fop.ors_limit = NULL;
479 fop.ors_tlimit = SLAP_NO_LIMIT;
480 fop.ors_attrs = slap_anlist_no_attrs;
481 fop.ors_attrsonly = 1;
482 fop.ors_filter = fc->fss->s_op->ors_filter;
483 fop.ors_filterstr = fc->fss->s_op->ors_filterstr;
485 fop.o_req_ndn = fc->fss->s_op->o_req_ndn;
487 fop.o_bd->bd_info = on->on_info->oi_orig;
488 rc = fop.o_bd->be_search( &fop, &frs );
489 fop.o_bd->bd_info = (BackendInfo *)on;
491 if ( fc->fbase ) return LDAP_SUCCESS;
493 /* If entryID has changed, then the base of this search has
494 * changed. Invalidate the psearch.
496 return LDAP_NO_SUCH_OBJECT;
500 * This function has three different purposes, but they all use a search
501 * that filters on entryCSN so they're combined here.
502 * 1: at startup time, after a contextCSN has been read from the database,
503 * we search for all entries with CSN >= contextCSN in case the contextCSN
504 * was not checkpointed at the previous shutdown.
506 * 2: when the current contextCSN is known and we have a sync cookie, we search
507 * for one entry with CSN <= the cookie CSN. (Used to search for =.) If an
508 * entry is found, the cookie CSN is valid, otherwise it is stale.
510 * 3: during a refresh phase, we search for all entries with CSN <= the cookie
511 * CSN, and generate Present records for them. We always collect this result
512 * in SyncID sets, even if there's only one match.
514 #define FIND_MAXCSN 1
516 #define FIND_PRESENT 3
519 findmax_cb( Operation *op, SlapReply *rs )
521 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
522 struct berval *maxcsn = op->o_callback->sc_private;
523 Attribute *a = attr_find( rs->sr_entry->e_attrs,
524 slap_schema.si_ad_entryCSN );
526 if ( a && ber_bvcmp( &a->a_vals[0], maxcsn ) > 0 ) {
527 maxcsn->bv_len = a->a_vals[0].bv_len;
528 strcpy( maxcsn->bv_val, a->a_vals[0].bv_val );
535 findcsn_cb( Operation *op, SlapReply *rs )
537 slap_callback *sc = op->o_callback;
539 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
540 sc->sc_private = (void *)1;
545 /* Build a list of entryUUIDs for sending in a SyncID set */
549 typedef struct fpres_cookie {
556 findpres_cb( Operation *op, SlapReply *rs )
558 slap_callback *sc = op->o_callback;
559 fpres_cookie *pc = sc->sc_private;
561 int ret = SLAP_CB_CONTINUE;
563 switch ( rs->sr_type ) {
565 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
567 pc->uuids[pc->num].bv_val = pc->last;
568 AC_MEMCPY( pc->uuids[pc->num].bv_val, a->a_nvals[0].bv_val,
569 pc->uuids[pc->num].bv_len );
571 pc->last = pc->uuids[pc->num].bv_val;
572 pc->uuids[pc->num].bv_val = NULL;
575 if ( pc->num != SLAP_SYNCUUID_SET_SIZE )
581 ret = syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET, NULL,
583 pc->uuids[pc->num].bv_val = pc->last;
585 pc->last = pc->uuids[0].bv_val;
595 syncprov_findcsn( Operation *op, int mode )
597 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
598 syncprov_info_t *si = on->on_bi.bi_private;
600 slap_callback cb = {0};
602 SlapReply frs = { REP_RESULT };
603 char buf[LDAP_LUTIL_CSNSTR_BUFSIZE + STRLENOF("(entryCSN<=)")];
604 char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
605 struct berval fbuf, maxcsn;
607 AttributeAssertion eq;
608 int i, rc = LDAP_SUCCESS;
609 fpres_cookie pcookie;
610 sync_control *srs = NULL;
612 if ( mode != FIND_MAXCSN ) {
613 srs = op->o_controls[slap_cids.sc_LDAPsync];
615 if ( srs->sr_state.ctxcsn.bv_len >= LDAP_LUTIL_CSNSTR_BUFSIZE ) {
621 fop.o_sync_mode &= SLAP_CONTROL_MASK; /* turn off sync_mode */
625 cf.f_av_desc = slap_schema.si_ad_entryCSN;
628 fop.o_callback = &cb;
629 fop.ors_limit = NULL;
630 fop.ors_tlimit = SLAP_NO_LIMIT;
631 fop.ors_filter = &cf;
632 fop.ors_filterstr = fbuf;
636 cf.f_choice = LDAP_FILTER_GE;
637 cf.f_av_value = si->si_ctxcsn;
638 fbuf.bv_len = sprintf( buf, "(entryCSN>=%s)",
639 cf.f_av_value.bv_val );
640 fop.ors_attrsonly = 0;
641 fop.ors_attrs = csn_anlist;
642 fop.ors_slimit = SLAP_NO_LIMIT;
643 cb.sc_private = &maxcsn;
644 cb.sc_response = findmax_cb;
645 strcpy( cbuf, si->si_ctxcsn.bv_val );
646 maxcsn.bv_val = cbuf;
647 maxcsn.bv_len = si->si_ctxcsn.bv_len;
650 cf.f_choice = LDAP_FILTER_LE;
651 cf.f_av_value = srs->sr_state.ctxcsn;
652 fbuf.bv_len = sprintf( buf, "(entryCSN<=%s)",
653 cf.f_av_value.bv_val );
654 fop.ors_attrsonly = 1;
655 fop.ors_attrs = slap_anlist_no_attrs;
657 cb.sc_private = NULL;
658 cb.sc_response = findcsn_cb;
661 af.f_choice = LDAP_FILTER_AND;
664 cf.f_choice = LDAP_FILTER_LE;
665 cf.f_av_value = srs->sr_state.ctxcsn;
666 cf.f_next = op->ors_filter;
667 fop.ors_filter = ⁡
668 filter2bv_x( &fop, fop.ors_filter, &fop.ors_filterstr );
669 fop.ors_attrsonly = 0;
670 fop.ors_attrs = uuid_anlist;
671 fop.ors_slimit = SLAP_NO_LIMIT;
672 /* We want pure entries, not referrals */
673 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
674 cb.sc_private = &pcookie;
675 cb.sc_response = findpres_cb;
678 /* preallocate storage for a full set */
679 pcookie.uuids = op->o_tmpalloc( (SLAP_SYNCUUID_SET_SIZE+1) *
680 sizeof(struct berval) + SLAP_SYNCUUID_SET_SIZE * UUID_LEN,
682 pcookie.last = (char *)(pcookie.uuids + SLAP_SYNCUUID_SET_SIZE+1);
683 pcookie.uuids[0].bv_val = pcookie.last;
684 pcookie.uuids[0].bv_len = UUID_LEN;
685 for (i=1; i<SLAP_SYNCUUID_SET_SIZE; i++) {
686 pcookie.uuids[i].bv_val = pcookie.uuids[i-1].bv_val + UUID_LEN;
687 pcookie.uuids[i].bv_len = UUID_LEN;
692 fop.o_bd->bd_info = on->on_info->oi_orig;
693 fop.o_bd->be_search( &fop, &frs );
694 fop.o_bd->bd_info = (BackendInfo *)on;
698 strcpy( si->si_ctxcsnbuf, maxcsn.bv_val );
699 si->si_ctxcsn.bv_len = maxcsn.bv_len;
702 /* If matching CSN was not found, invalidate the context. */
703 if ( !cb.sc_private ) rc = LDAP_NO_SUCH_OBJECT;
706 op->o_tmpfree( pcookie.uuids, op->o_tmpmemctx );
707 op->o_tmpfree( fop.ors_filterstr.bv_val, op->o_tmpmemctx );
714 /* Queue a persistent search response if still in Refresh stage */
716 syncprov_qresp( opcookie *opc, syncops *so, int mode )
720 sr = ch_malloc(sizeof(syncres) + opc->suuid.bv_len + 1 +
721 opc->sdn.bv_len + 1 + opc->sndn.bv_len + 1 + opc->sctxcsn.bv_len + 1 );
723 sr->s_dn.bv_val = (char *)(sr + 1);
725 sr->s_isreference = opc->sreference;
726 sr->s_ndn.bv_val = lutil_strcopy( sr->s_dn.bv_val, opc->sdn.bv_val );
727 *(sr->s_ndn.bv_val++) = '\0';
728 sr->s_uuid.bv_val = lutil_strcopy( sr->s_ndn.bv_val, opc->sndn.bv_val );
729 *(sr->s_uuid.bv_val++) = '\0';
730 sr->s_csn.bv_val = lutil_strcopy( sr->s_uuid.bv_val, opc->suuid.bv_val );
735 so->s_restail->s_next = sr;
738 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
742 /* Send a persistent search response */
744 syncprov_sendresp( Operation *op, opcookie *opc, syncops *so, Entry *e, int mode, int queue )
746 slap_overinst *on = opc->son;
747 syncprov_info_t *si = on->on_bi.bi_private;
749 SlapReply rs = { REP_SEARCH };
750 LDAPControl *ctrls[2];
751 struct berval cookie;
753 Attribute a_uuid = {0};
754 Operation sop = *so->s_op;
759 sop.o_tmpmemctx = op->o_tmpmemctx;
761 sop.o_controls = op->o_controls;
763 if ( queue && (so->s_flags & PS_IS_REFRESHING) ) {
764 ldap_pvt_thread_mutex_lock( &so->s_mutex );
765 if ( so->s_flags & PS_IS_REFRESHING )
766 return syncprov_qresp( opc, so, mode );
767 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
771 slap_compose_sync_cookie( op, &cookie, &opc->sctxcsn, so->s_rid );
773 e_uuid.e_attrs = &a_uuid;
774 a_uuid.a_desc = slap_schema.si_ad_entryUUID;
775 a_uuid.a_nvals = &opc->suuid;
776 rs.sr_err = syncprov_state_ctrl( &sop, &rs, &e_uuid,
777 mode, ctrls, 0, 1, &cookie );
783 if ( opc->sreference ) {
784 rs.sr_ref = get_entry_referrals( &sop, e );
785 send_search_reference( &sop, &rs );
786 ber_bvarray_free( rs.sr_ref );
790 case LDAP_SYNC_MODIFY:
791 rs.sr_attrs = sop.ors_attrs;
792 send_search_entry( &sop, &rs );
794 case LDAP_SYNC_DELETE:
795 e_uuid.e_attrs = NULL;
796 e_uuid.e_name = opc->sdn;
797 e_uuid.e_nname = opc->sndn;
798 rs.sr_entry = &e_uuid;
799 if ( opc->sreference ) {
800 struct berval bv = BER_BVNULL;
802 send_search_reference( &sop, &rs );
804 send_search_entry( &sop, &rs );
810 op->o_tmpfree( rs.sr_ctrls[0], op->o_tmpmemctx );
816 syncprov_free_syncop( syncops *so )
818 syncres *sr, *srnext;
819 GroupAssertion *ga, *gnext;
821 ldap_pvt_thread_mutex_lock( &so->s_mutex );
823 if ( so->s_inuse > 0 ) {
824 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
827 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
828 if ( so->s_flags & PS_IS_DETACHED ) {
829 filter_free( so->s_op->ors_filter );
830 for ( ga = so->s_op->o_groups; ga; ga=gnext ) {
836 ch_free( so->s_base.bv_val );
837 for ( sr=so->s_res; sr; sr=srnext ) {
841 ldap_pvt_thread_mutex_destroy( &so->s_mutex );
846 syncprov_drop_psearch( syncops *so, int lock )
848 if ( so->s_flags & PS_IS_DETACHED ) {
850 ldap_pvt_thread_mutex_lock( &so->s_op->o_conn->c_mutex );
851 so->s_op->o_conn->c_n_ops_executing--;
852 so->s_op->o_conn->c_n_ops_completed++;
853 LDAP_STAILQ_REMOVE( &so->s_op->o_conn->c_ops, so->s_op, slap_op,
856 ldap_pvt_thread_mutex_unlock( &so->s_op->o_conn->c_mutex );
858 syncprov_free_syncop( so );
864 syncprov_ab_cleanup( Operation *op, SlapReply *rs )
866 slap_callback *sc = op->o_callback;
867 op->o_callback = sc->sc_next;
868 syncprov_drop_psearch( op->o_callback->sc_private, 0 );
869 op->o_tmpfree( sc, op->o_tmpmemctx );
874 syncprov_op_abandon( Operation *op, SlapReply *rs )
876 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
877 syncprov_info_t *si = on->on_bi.bi_private;
878 syncops *so, *soprev;
880 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
881 for ( so=si->si_ops, soprev = (syncops *)&si->si_ops; so;
882 soprev=so, so=so->s_next ) {
883 if ( so->s_op->o_connid == op->o_connid &&
884 so->s_op->o_msgid == op->orn_msgid ) {
885 so->s_op->o_abandon = 1;
886 soprev->s_next = so->s_next;
890 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
892 /* Is this really a Cancel exop? */
893 if ( op->o_tag != LDAP_REQ_ABANDON ) {
894 so->s_op->o_cancel = SLAP_CANCEL_ACK;
895 rs->sr_err = LDAP_CANCELLED;
896 send_ldap_result( so->s_op, rs );
897 if ( so->s_flags & PS_IS_DETACHED ) {
899 cb = op->o_tmpcalloc( 1, sizeof(slap_callback), op->o_tmpmemctx );
900 cb->sc_cleanup = syncprov_ab_cleanup;
901 cb->sc_next = op->o_callback;
903 return SLAP_CB_CONTINUE;
906 syncprov_drop_psearch( so, 0 );
908 return SLAP_CB_CONTINUE;
911 /* Find which persistent searches are affected by this operation */
913 syncprov_matchops( Operation *op, opcookie *opc, int saveit )
915 slap_overinst *on = opc->son;
916 syncprov_info_t *si = on->on_bi.bi_private;
919 syncops *ss, *sprev, *snext;
926 fc.fdn = &op->o_req_ndn;
928 if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
930 if ( op->orr_nnewSup ) pdn = *op->orr_nnewSup;
931 else dnParent( fc.fdn, &pdn );
932 build_new_dn( &newdn, &pdn, &op->orr_nnewrdn, op->o_tmpmemctx );
936 if ( op->o_tag != LDAP_REQ_ADD ) {
937 op->o_bd->bd_info = (BackendInfo *)on->on_info;
938 rc = be_entry_get_rw( op, fc.fdn, NULL, NULL, 0, &e );
939 op->o_bd->bd_info = (BackendInfo *)on;
946 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
947 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
948 opc->sreference = is_entry_referral( e );
950 if ( saveit || op->o_tag == LDAP_REQ_ADD ) {
951 a = attr_find( e->e_attrs, slap_schema.si_ad_entryUUID );
953 ber_dupbv_x( &opc->suuid, &a->a_nvals[0], op->o_tmpmemctx );
956 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
957 for (ss = si->si_ops, sprev = (syncops *)&si->si_ops; ss;
958 sprev = ss, ss=snext)
969 /* If the base of the search is missing, signal a refresh */
970 rc = syncprov_findbase( op, &fc );
971 if ( rc != LDAP_SUCCESS ) {
972 SlapReply rs = {REP_RESULT};
973 send_ldap_error( ss->s_op, &rs, LDAP_SYNC_REFRESH_REQUIRED,
974 "search base has changed" );
975 sprev->s_next = snext;
976 syncprov_drop_psearch( ss, 1 );
980 /* If we're sending results now, look for this op in old matches */
983 for ( sm=opc->smatches, old=(syncmatches *)&opc->smatches; sm;
984 old=sm, sm=sm->sm_next ) {
985 if ( sm->sm_op == ss ) {
987 old->sm_next = sm->sm_next;
988 op->o_tmpfree( sm, op->o_tmpmemctx );
994 /* check if current o_req_dn is in scope and matches filter */
995 if ( fc.fscope && test_filter( op, e, ss->s_op->ors_filter ) ==
996 LDAP_COMPARE_TRUE ) {
998 sm = op->o_tmpalloc( sizeof(syncmatches), op->o_tmpmemctx );
999 sm->sm_next = opc->smatches;
1004 /* if found send UPDATE else send ADD */
1005 syncprov_sendresp( op, opc, ss, e,
1006 found ? LDAP_SYNC_MODIFY : LDAP_SYNC_ADD, 1 );
1008 } else if ( !saveit && found ) {
1010 syncprov_sendresp( op, opc, ss, NULL, LDAP_SYNC_DELETE, 1 );
1013 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1015 if ( op->o_tag != LDAP_REQ_ADD ) {
1016 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1017 be_entry_release_rw( op, e, 0 );
1018 op->o_bd->bd_info = (BackendInfo *)on;
1021 op->o_tmpfree( fc.fdn->bv_val, op->o_tmpmemctx );
1026 syncprov_op_cleanup( Operation *op, SlapReply *rs )
1028 slap_callback *cb = op->o_callback;
1029 opcookie *opc = cb->sc_private;
1030 slap_overinst *on = opc->son;
1031 syncprov_info_t *si = on->on_bi.bi_private;
1032 syncmatches *sm, *snext;
1033 modtarget *mt, mtdummy;
1035 for (sm = opc->smatches; sm; sm=snext) {
1036 snext = sm->sm_next;
1037 syncprov_free_syncop( sm->sm_op );
1038 op->o_tmpfree( sm, op->o_tmpmemctx );
1041 /* Remove op from lock table */
1043 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1044 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
1045 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1047 modinst *mi = mt->mt_mods;
1049 /* If there are more, promote the next one */
1050 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1051 if ( mi->mi_next ) {
1052 mt->mt_mods = mi->mi_next;
1053 mt->mt_op = mt->mt_mods->mi_op;
1054 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1056 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1057 avl_delete( &si->si_mods, mt, sp_avl_cmp );
1058 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1059 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1060 ldap_pvt_thread_mutex_destroy( &mt->mt_mutex );
1064 if ( !BER_BVISNULL( &opc->suuid ))
1065 op->o_tmpfree( opc->suuid.bv_val, op->o_tmpmemctx );
1066 if ( !BER_BVISNULL( &opc->sndn ))
1067 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1068 if ( !BER_BVISNULL( &opc->sdn ))
1069 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1070 op->o_callback = cb->sc_next;
1071 op->o_tmpfree(cb, op->o_tmpmemctx);
1077 syncprov_checkpoint( Operation *op, SlapReply *rs, slap_overinst *on )
1079 syncprov_info_t *si = on->on_bi.bi_private;
1082 struct berval bv[2];
1084 slap_callback cb = {0};
1086 mod.sml_values = bv;
1087 bv[1].bv_val = NULL;
1088 bv[0] = si->si_ctxcsn;
1089 mod.sml_nvalues = NULL;
1090 mod.sml_desc = slap_schema.si_ad_contextCSN;
1091 mod.sml_op = LDAP_MOD_REPLACE;
1092 mod.sml_next = NULL;
1094 cb.sc_response = slap_null_cb;
1096 opm.o_tag = LDAP_REQ_MODIFY;
1097 opm.o_callback = &cb;
1098 opm.orm_modlist = &mod;
1099 opm.o_req_dn = op->o_bd->be_suffix[0];
1100 opm.o_req_ndn = op->o_bd->be_nsuffix[0];
1101 orig = opm.o_bd->bd_info;
1102 opm.o_bd->bd_info = on->on_info->oi_orig;
1103 opm.o_bd->be_modify( &opm, rs );
1107 syncprov_add_slog( Operation *op, struct berval *csn )
1109 opcookie *opc = op->o_callback->sc_private;
1110 slap_overinst *on = opc->son;
1111 syncprov_info_t *si = on->on_bi.bi_private;
1117 /* Allocate a record. UUIDs are not NUL-terminated. */
1118 se = ch_malloc( sizeof( slog_entry ) + opc->suuid.bv_len +
1121 se->se_tag = op->o_tag;
1123 se->se_uuid.bv_val = (char *)(se+1);
1124 se->se_csn.bv_val = se->se_uuid.bv_val + opc->suuid.bv_len + 1;
1125 AC_MEMCPY( se->se_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1126 se->se_uuid.bv_len = opc->suuid.bv_len;
1128 AC_MEMCPY( se->se_csn.bv_val, csn->bv_val, csn->bv_len );
1129 se->se_csn.bv_val[csn->bv_len] = '\0';
1130 se->se_csn.bv_len = csn->bv_len;
1132 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1133 if ( sl->sl_head ) {
1134 sl->sl_tail->se_next = se;
1140 while ( sl->sl_num > sl->sl_size ) {
1142 sl->sl_head = se->se_next;
1143 strcpy( sl->sl_mincsn.bv_val, se->se_csn.bv_val );
1144 sl->sl_mincsn.bv_len = se->se_csn.bv_len;
1147 if ( !sl->sl_head ) {
1151 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1155 /* Just set a flag if we found the matching entry */
1157 playlog_cb( Operation *op, SlapReply *rs )
1159 if ( rs->sr_type == REP_SEARCH ) {
1160 op->o_callback->sc_private = (void *)1;
1165 /* enter with sl->sl_mutex locked, release before returning */
1167 syncprov_playlog( Operation *op, SlapReply *rs, sessionlog *sl,
1168 struct berval *oldcsn, struct berval *ctxcsn )
1170 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1171 syncprov_info_t *si = on->on_bi.bi_private;
1173 int i, j, ndel, num, nmods, mmods;
1176 if ( !sl->sl_num ) {
1177 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1185 uuids = op->o_tmpalloc( (num+1) * sizeof( struct berval ) +
1186 num * UUID_LEN, op->o_tmpmemctx );
1188 uuids[0].bv_val = (char *)(uuids + num + 1);
1190 /* Make a copy of the relevant UUIDs. Put the Deletes up front
1191 * and everything else at the end. Do this first so we can
1192 * unlock the list mutex.
1194 for ( se=sl->sl_head; se; se=se->se_next ) {
1195 if ( ber_bvcmp( &se->se_csn, oldcsn ) < 0 ) continue;
1196 if ( ber_bvcmp( &se->se_csn, ctxcsn ) > 0 ) break;
1197 if ( se->se_tag == LDAP_REQ_DELETE ) {
1204 uuids[j].bv_val = uuids[0].bv_val + (j * UUID_LEN);
1205 AC_MEMCPY(uuids[j].bv_val, se->se_uuid.bv_val, UUID_LEN);
1206 uuids[j].bv_len = UUID_LEN;
1208 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1212 /* Zero out unused slots */
1213 for ( i=ndel; i < num - nmods; i++ )
1214 uuids[i].bv_len = 0;
1216 /* Mods must be validated to see if they belong in this delete set.
1220 /* Strip any duplicates */
1221 for ( i=0; i<nmods; i++ ) {
1222 for ( j=0; j<ndel; j++ ) {
1223 if ( bvmatch( &uuids[j], &uuids[num - 1 - i] )) {
1224 uuids[num - 1 - i].bv_len = 0;
1229 if ( uuids[num - 1 - i].bv_len == 0 ) continue;
1230 for ( j=0; j<i; j++ ) {
1231 if ( bvmatch( &uuids[num - 1 - j], &uuids[num - 1 - i] )) {
1232 uuids[num - 1 - i].bv_len = 0;
1241 SlapReply frs = { REP_RESULT };
1244 AttributeAssertion eq;
1245 slap_callback cb = {0};
1249 fop.o_sync_mode = 0;
1250 fop.o_callback = &cb;
1251 fop.ors_limit = NULL;
1252 fop.ors_tlimit = SLAP_NO_LIMIT;
1253 fop.ors_attrs = slap_anlist_all_attributes;
1254 fop.ors_attrsonly = 0;
1255 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
1257 af.f_choice = LDAP_FILTER_AND;
1260 mf.f_choice = LDAP_FILTER_EQUALITY;
1262 mf.f_av_desc = slap_schema.si_ad_entryUUID;
1263 mf.f_next = fop.ors_filter;
1265 fop.ors_filter = ⁡
1267 cb.sc_response = playlog_cb;
1268 fop.o_bd->bd_info = on->on_info->oi_orig;
1270 for ( i=ndel; i<num; i++ ) {
1271 if ( uuids[i].bv_len == 0 ) continue;
1273 mf.f_av_value = uuids[i];
1274 cb.sc_private = NULL;
1276 rc = fop.o_bd->be_search( &fop, &frs );
1278 /* If entry was not found, add to delete list */
1279 if ( !cb.sc_private ) {
1280 uuids[ndel++] = uuids[i];
1283 fop.o_bd->bd_info = (BackendInfo *)on;
1286 uuids[ndel].bv_val = NULL;
1287 syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET, NULL, 0, uuids, 1 );
1292 syncprov_op_response( Operation *op, SlapReply *rs )
1294 opcookie *opc = op->o_callback->sc_private;
1295 slap_overinst *on = opc->son;
1296 syncprov_info_t *si = on->on_bi.bi_private;
1299 if ( rs->sr_err == LDAP_SUCCESS )
1301 struct berval maxcsn = BER_BVNULL, curcsn = BER_BVNULL;
1302 char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
1304 /* Update our context CSN */
1306 ldap_pvt_thread_mutex_lock( &si->si_csn_mutex );
1307 slap_get_commit_csn( op, &maxcsn, &curcsn );
1308 if ( !BER_BVISNULL( &maxcsn ) ) {
1309 strcpy( cbuf, maxcsn.bv_val );
1310 if ( ber_bvcmp( &maxcsn, &si->si_ctxcsn ) > 0 ) {
1311 strcpy( si->si_ctxcsnbuf, cbuf );
1312 si->si_ctxcsn.bv_len = maxcsn.bv_len;
1316 /* Don't do any processing for consumer contextCSN updates */
1317 if ( SLAP_SYNC_SHADOW( op->o_bd ) &&
1318 op->o_msgid == SLAP_SYNC_UPDATE_MSGID ) {
1319 ldap_pvt_thread_mutex_unlock( &si->si_csn_mutex );
1320 return SLAP_CB_CONTINUE;
1324 if ( si->si_chkops || si->si_chktime ) {
1326 if ( si->si_chkops && si->si_numops >= si->si_chkops ) {
1330 if ( si->si_chktime &&
1331 (op->o_time - si->si_chklast >= si->si_chktime )) {
1333 si->si_chklast = op->o_time;
1336 syncprov_checkpoint( op, rs, on );
1339 ldap_pvt_thread_mutex_unlock( &si->si_csn_mutex );
1341 opc->sctxcsn.bv_len = maxcsn.bv_len;
1342 opc->sctxcsn.bv_val = cbuf;
1344 /* Handle any persistent searches */
1348 case LDAP_REQ_MODIFY:
1349 case LDAP_REQ_MODRDN:
1350 case LDAP_REQ_EXTENDED:
1351 syncprov_matchops( op, opc, 0 );
1353 case LDAP_REQ_DELETE:
1354 /* for each match in opc->smatches:
1357 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1358 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1359 if ( sm->sm_op->s_op->o_abandon )
1361 syncprov_sendresp( op, opc, sm->sm_op, NULL,
1362 LDAP_SYNC_DELETE, 1 );
1364 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1369 /* Add any log records */
1370 if ( si->si_logs && op->o_tag != LDAP_REQ_ADD ) {
1371 syncprov_add_slog( op, &curcsn );
1375 return SLAP_CB_CONTINUE;
1378 /* We don't use a subentry to store the context CSN any more.
1379 * We expose the current context CSN as an operational attribute
1380 * of the suffix entry.
1383 syncprov_op_compare( Operation *op, SlapReply *rs )
1385 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1386 syncprov_info_t *si = on->on_bi.bi_private;
1387 int rc = SLAP_CB_CONTINUE;
1389 if ( dn_match( &op->o_req_ndn, op->o_bd->be_nsuffix ) &&
1390 op->oq_compare.rs_ava->aa_desc == slap_schema.si_ad_contextCSN )
1394 struct berval bv[2];
1396 e.e_name = op->o_bd->be_suffix[0];
1397 e.e_nname = op->o_bd->be_nsuffix[0];
1399 BER_BVZERO( &bv[1] );
1400 bv[0] = si->si_ctxcsn;
1402 a.a_desc = slap_schema.si_ad_contextCSN;
1404 a.a_nvals = a.a_vals;
1406 ldap_pvt_thread_mutex_lock( &si->si_csn_mutex );
1408 rs->sr_err = access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc,
1409 &op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL );
1410 if ( ! rs->sr_err ) {
1411 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1412 goto return_results;
1415 if ( get_assert( op ) &&
1416 ( test_filter( op, &e, get_assertion( op ) ) != LDAP_COMPARE_TRUE ) )
1418 rs->sr_err = LDAP_ASSERTION_FAILED;
1419 goto return_results;
1423 rs->sr_err = LDAP_COMPARE_FALSE;
1425 if ( value_find_ex( op->oq_compare.rs_ava->aa_desc,
1426 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
1427 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
1428 a.a_nvals, &op->oq_compare.rs_ava->aa_value, op->o_tmpmemctx ) == 0 )
1430 rs->sr_err = LDAP_COMPARE_TRUE;
1435 ldap_pvt_thread_mutex_unlock( &si->si_csn_mutex );
1437 send_ldap_result( op, rs );
1439 if( rs->sr_err == LDAP_COMPARE_FALSE || rs->sr_err == LDAP_COMPARE_TRUE ) {
1440 rs->sr_err = LDAP_SUCCESS;
1449 syncprov_op_mod( Operation *op, SlapReply *rs )
1451 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1452 syncprov_info_t *si = on->on_bi.bi_private;
1454 slap_callback *cb = op->o_tmpcalloc(1, sizeof(slap_callback)+
1456 (si->si_ops ? sizeof(modinst) : 0 ),
1458 opcookie *opc = (opcookie *)(cb+1);
1460 cb->sc_response = syncprov_op_response;
1461 cb->sc_cleanup = syncprov_op_cleanup;
1462 cb->sc_private = opc;
1463 cb->sc_next = op->o_callback;
1464 op->o_callback = cb;
1466 /* If there are active persistent searches, lock this operation.
1467 * See seqmod.c for the locking logic on its own.
1470 modtarget *mt, mtdummy;
1473 mi = (modinst *)(opc+1);
1476 /* See if we're already modifying this entry... */
1478 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1479 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
1481 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1482 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1483 mt->mt_tail->mi_next = mi;
1485 /* wait for this op to get to head of list */
1486 while ( mt->mt_mods != mi ) {
1487 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1488 ldap_pvt_thread_yield();
1489 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1491 /* clean up if the caller is giving up */
1492 if ( op->o_abandon ) {
1494 for ( m2 = mt->mt_mods; m2->mi_next != mi;
1496 m2->mi_next = mi->mi_next;
1497 if ( mt->mt_tail == mi ) mt->mt_tail = m2;
1498 op->o_tmpfree( cb, op->o_tmpmemctx );
1499 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1500 return SLAPD_ABANDON;
1503 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1505 /* Record that we're modifying this entry now */
1506 mt = ch_malloc( sizeof(modtarget) );
1509 mt->mt_op = mi->mi_op;
1510 ldap_pvt_thread_mutex_init( &mt->mt_mutex );
1511 avl_insert( &si->si_mods, mt, sp_avl_cmp, avl_dup_error );
1512 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1516 if (( si->si_ops || si->si_logs ) && op->o_tag != LDAP_REQ_ADD )
1517 syncprov_matchops( op, opc, 1 );
1520 return SLAP_CB_CONTINUE;
1524 syncprov_op_extended( Operation *op, SlapReply *rs )
1526 if ( exop_is_write( op ))
1527 return syncprov_op_mod( op, rs );
1529 return SLAP_CB_CONTINUE;
1532 typedef struct searchstate {
1533 slap_overinst *ss_on;
1539 syncprov_search_cleanup( Operation *op, SlapReply *rs )
1541 if ( rs->sr_ctrls ) {
1542 op->o_tmpfree( rs->sr_ctrls[0], op->o_tmpmemctx );
1543 op->o_tmpfree( rs->sr_ctrls, op->o_tmpmemctx );
1544 rs->sr_ctrls = NULL;
1550 syncprov_detach_op( Operation *op, syncops *so )
1556 GroupAssertion *g1, *g2;
1558 /* count the search attrs */
1559 for (i=0; op->ors_attrs && !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
1560 alen += op->ors_attrs[i].an_name.bv_len + 1;
1562 /* Make a new copy of the operation */
1563 size = sizeof(Operation) + sizeof(Opheader) +
1564 (i ? ( (i+1) * sizeof(AttributeName) + alen) : 0) +
1565 op->o_req_dn.bv_len + 1 +
1566 op->o_req_ndn.bv_len + 1 +
1567 op->o_ndn.bv_len + 1 +
1568 so->s_filterstr.bv_len + 1;
1569 op2 = (Operation *)ch_calloc( 1, size );
1570 op2->o_hdr = (Opheader *)(op2+1);
1572 /* Copy the fields we care about explicitly, leave the rest alone */
1573 *op2->o_hdr = *op->o_hdr;
1574 op2->o_tag = op->o_tag;
1575 op2->o_time = op->o_time;
1576 op2->o_bd = op->o_bd;
1577 op2->o_request = op->o_request;
1580 op2->ors_attrs = (AttributeName *)(op2->o_hdr + 1);
1581 ptr = (char *)(op2->ors_attrs+i+1);
1582 for (i=0; !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
1583 op2->ors_attrs[i] = op->ors_attrs[i];
1584 op2->ors_attrs[i].an_name.bv_val = ptr;
1585 ptr = lutil_strcopy( ptr, op->ors_attrs[i].an_name.bv_val ) + 1;
1587 BER_BVZERO( &op2->ors_attrs[i].an_name );
1589 ptr = (char *)(op2->o_hdr + 1);
1591 op2->o_authz = op->o_authz;
1592 op2->o_ndn.bv_val = ptr;
1593 ptr = lutil_strcopy(ptr, op->o_ndn.bv_val) + 1;
1594 op2->o_dn = op2->o_ndn;
1595 op2->o_req_dn.bv_len = op->o_req_dn.bv_len;
1596 op2->o_req_dn.bv_val = ptr;
1597 ptr = lutil_strcopy(ptr, op->o_req_dn.bv_val) + 1;
1598 op2->o_req_ndn.bv_len = op->o_req_ndn.bv_len;
1599 op2->o_req_ndn.bv_val = ptr;
1600 ptr = lutil_strcopy(ptr, op->o_req_ndn.bv_val) + 1;
1601 op2->ors_filterstr.bv_val = ptr;
1602 strcpy( ptr, so->s_filterstr.bv_val );
1603 op2->ors_filterstr.bv_len = so->s_filterstr.bv_len;
1604 op2->ors_filter = str2filter( ptr );
1607 /* Copy any cached group ACLs individually */
1608 op2->o_groups = NULL;
1609 for ( g1=op->o_groups; g1; g1=g1->ga_next ) {
1610 g2 = ch_malloc( sizeof(GroupAssertion) + g1->ga_len );
1612 strcpy( g2->ga_ndn, g1->ga_ndn );
1613 g2->ga_next = op2->o_groups;
1617 /* Add op2 to conn so abandon will find us */
1618 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
1619 op->o_conn->c_n_ops_executing++;
1620 op->o_conn->c_n_ops_completed--;
1621 LDAP_STAILQ_INSERT_TAIL( &op->o_conn->c_ops, op2, o_next );
1622 so->s_flags |= PS_IS_DETACHED;
1623 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
1627 syncprov_search_response( Operation *op, SlapReply *rs )
1629 searchstate *ss = op->o_callback->sc_private;
1630 slap_overinst *on = ss->ss_on;
1631 syncprov_info_t *si = on->on_bi.bi_private;
1632 sync_control *srs = op->o_controls[slap_cids.sc_LDAPsync];
1634 if ( rs->sr_type == REP_SEARCH || rs->sr_type == REP_SEARCHREF ) {
1636 /* If we got a referral without a referral object, there's
1637 * something missing that we cannot replicate. Just ignore it.
1638 * The consumer will abort because we didn't send the expected
1641 if ( !rs->sr_entry ) {
1642 assert( rs->sr_entry );
1643 Debug( LDAP_DEBUG_ANY, "bogus referral in context\n",0,0,0 );
1644 return SLAP_CB_CONTINUE;
1646 if ( !BER_BVISNULL( &srs->sr_state.ctxcsn )) {
1647 Attribute *a = attr_find( rs->sr_entry->e_attrs,
1648 slap_schema.si_ad_entryCSN );
1650 /* Don't send the ctx entry twice */
1651 if ( a && bvmatch( &a->a_nvals[0], &srs->sr_state.ctxcsn ) )
1652 return LDAP_SUCCESS;
1654 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
1656 rs->sr_ctrls[1] = NULL;
1657 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
1658 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 0, NULL );
1659 } else if ( rs->sr_type == REP_RESULT && rs->sr_err == LDAP_SUCCESS ) {
1660 struct berval cookie;
1662 slap_compose_sync_cookie( op, &cookie,
1663 &op->ors_filter->f_and->f_ava->aa_value,
1664 srs->sr_state.rid );
1666 /* Is this a regular refresh? */
1668 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
1670 rs->sr_ctrls[1] = NULL;
1671 rs->sr_err = syncprov_done_ctrl( op, rs, rs->sr_ctrls,
1672 0, 1, &cookie, ss->ss_present ? LDAP_SYNC_REFRESH_PRESENTS :
1673 LDAP_SYNC_REFRESH_DELETES );
1676 /* It's RefreshAndPersist, transition to Persist phase */
1677 syncprov_sendinfo( op, rs, ( ss->ss_present && rs->sr_nentries ) ?
1678 LDAP_TAG_SYNC_REFRESH_PRESENT : LDAP_TAG_SYNC_REFRESH_DELETE,
1679 &cookie, 1, NULL, 0 );
1680 /* Flush any queued persist messages */
1681 if ( ss->ss_so->s_res ) {
1682 syncres *sr, *srnext;
1687 ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex );
1689 for (sr = ss->ss_so->s_res; sr; sr=srnext) {
1690 int rc = LDAP_SUCCESS;
1691 srnext = sr->s_next;
1693 opc.sndn = sr->s_ndn;
1694 opc.suuid = sr->s_uuid;
1695 opc.sctxcsn = sr->s_csn;
1696 opc.sreference = sr->s_isreference;
1699 if ( sr->s_mode != LDAP_SYNC_DELETE ) {
1700 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1701 rc = be_entry_get_rw( op, &opc.sndn, NULL, NULL, 0, &e );
1702 op->o_bd->bd_info = (BackendInfo *)on;
1704 if ( rc == LDAP_SUCCESS )
1705 syncprov_sendresp( op, &opc, ss->ss_so, e,
1709 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1710 be_entry_release_rw( op, e, 0 );
1711 op->o_bd->bd_info = (BackendInfo *)on;
1715 ss->ss_so->s_res = NULL;
1716 ss->ss_so->s_restail = NULL;
1719 /* Turn off the refreshing flag */
1720 ss->ss_so->s_flags ^= PS_IS_REFRESHING;
1722 ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
1724 /* Detach this Op from frontend control */
1725 syncprov_detach_op( op, ss->ss_so );
1727 return LDAP_SUCCESS;
1731 return SLAP_CB_CONTINUE;
1735 syncprov_op_search( Operation *op, SlapReply *rs )
1737 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1738 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
1740 int gotstate = 0, nochange = 0, do_present = 1;
1741 Filter *fand, *fava;
1742 syncops *sop = NULL;
1745 struct berval ctxcsn;
1746 char csnbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
1748 if ( !(op->o_sync_mode & SLAP_SYNC_REFRESH) ) return SLAP_CB_CONTINUE;
1750 if ( op->ors_deref & LDAP_DEREF_SEARCHING ) {
1751 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR, "illegal value for derefAliases" );
1755 srs = op->o_controls[slap_cids.sc_LDAPsync];
1757 /* If this is a persistent search, set it up right away */
1758 if ( op->o_sync_mode & SLAP_SYNC_PERSIST ) {
1768 so.s_flags = PS_IS_REFRESHING;
1769 /* syncprov_findbase expects to be called as a callback... */
1770 sc.sc_private = &opc;
1772 cb = op->o_callback;
1773 op->o_callback = ≻
1774 rs->sr_err = syncprov_findbase( op, &fc );
1775 op->o_callback = cb;
1777 if ( rs->sr_err != LDAP_SUCCESS ) {
1778 send_ldap_result( op, rs );
1781 sop = ch_malloc( sizeof( syncops ));
1783 ldap_pvt_thread_mutex_init( &sop->s_mutex );
1784 sop->s_rid = srs->sr_state.rid;
1787 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1788 sop->s_next = si->si_ops;
1790 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1793 /* snapshot the ctxcsn */
1794 ldap_pvt_thread_mutex_lock( &si->si_csn_mutex );
1795 strcpy( csnbuf, si->si_ctxcsnbuf );
1796 ctxcsn.bv_len = si->si_ctxcsn.bv_len;
1797 ldap_pvt_thread_mutex_unlock( &si->si_csn_mutex );
1798 ctxcsn.bv_val = csnbuf;
1800 /* If we have a cookie, handle the PRESENT lookups */
1801 if ( !BER_BVISNULL( &srs->sr_state.ctxcsn )) {
1804 /* The cookie was validated when it was parsed, just use it */
1806 /* If just Refreshing and nothing has changed, shortcut it */
1807 if ( bvmatch( &srs->sr_state.ctxcsn, &ctxcsn )) {
1809 if ( !(op->o_sync_mode & SLAP_SYNC_PERSIST) ) {
1810 LDAPControl *ctrls[2];
1814 syncprov_done_ctrl( op, rs, ctrls, 0, 0,
1815 NULL, LDAP_SYNC_REFRESH_DELETES );
1816 rs->sr_ctrls = ctrls;
1817 rs->sr_err = LDAP_SUCCESS;
1818 send_ldap_result( op, rs );
1819 rs->sr_ctrls = NULL;
1824 /* Do we have a sessionlog for this search? */
1827 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1828 if ( ber_bvcmp( &srs->sr_state.ctxcsn, &sl->sl_mincsn ) >= 0 ) {
1830 /* mutex is unlocked in playlog */
1831 syncprov_playlog( op, rs, sl, &srs->sr_state.ctxcsn, &ctxcsn );
1833 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1836 /* Is the CSN still present in the database? */
1837 if ( syncprov_findcsn( op, FIND_CSN ) != LDAP_SUCCESS ) {
1838 /* No, so a reload is required */
1839 #if 0 /* the consumer doesn't seem to send this hint */
1840 if ( op->o_sync_rhint == 0 ) {
1841 send_ldap_error( op, rs, LDAP_SYNC_REFRESH_REQUIRED, "sync cookie is stale" );
1847 /* If changed and doing Present lookup, send Present UUIDs */
1848 if ( do_present && syncprov_findcsn( op, FIND_PRESENT ) !=
1850 send_ldap_result( op, rs );
1857 /* Append CSN range to search filter, save original filter
1858 * for persistent search evaluation
1861 sop->s_filterstr= op->ors_filterstr;
1864 fand = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
1865 fand->f_choice = LDAP_FILTER_AND;
1866 fand->f_next = NULL;
1867 fava = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
1868 fava->f_choice = LDAP_FILTER_LE;
1869 fava->f_ava = op->o_tmpalloc( sizeof(AttributeAssertion), op->o_tmpmemctx );
1870 fava->f_ava->aa_desc = slap_schema.si_ad_entryCSN;
1871 ber_dupbv_x( &fava->f_ava->aa_value, &ctxcsn, op->o_tmpmemctx );
1874 fava->f_next = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
1875 fava = fava->f_next;
1876 fava->f_choice = LDAP_FILTER_GE;
1877 fava->f_ava = op->o_tmpalloc( sizeof(AttributeAssertion), op->o_tmpmemctx );
1878 fava->f_ava->aa_desc = slap_schema.si_ad_entryCSN;
1879 ber_dupbv_x( &fava->f_ava->aa_value, &srs->sr_state.ctxcsn, op->o_tmpmemctx );
1881 fava->f_next = op->ors_filter;
1882 op->ors_filter = fand;
1883 filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
1885 /* Let our callback add needed info to returned entries */
1886 cb = op->o_tmpcalloc(1, sizeof(slap_callback)+sizeof(searchstate), op->o_tmpmemctx);
1887 ss = (searchstate *)(cb+1);
1890 ss->ss_present = do_present;
1891 cb->sc_response = syncprov_search_response;
1892 cb->sc_cleanup = syncprov_search_cleanup;
1893 cb->sc_private = ss;
1894 cb->sc_next = op->o_callback;
1895 op->o_callback = cb;
1897 #if 0 /* I don't think we need to shortcircuit back-bdb any more */
1898 op->o_sync_mode &= SLAP_CONTROL_MASK;
1901 /* If this is a persistent search and no changes were reported during
1902 * the refresh phase, just invoke the response callback to transition
1903 * us into persist phase
1906 rs->sr_err = LDAP_SUCCESS;
1907 rs->sr_nentries = 0;
1908 send_ldap_result( op, rs );
1911 return SLAP_CB_CONTINUE;
1915 syncprov_operational(
1919 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1920 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
1922 if ( rs->sr_entry &&
1923 dn_match( &rs->sr_entry->e_nname, op->o_bd->be_nsuffix )) {
1925 if ( SLAP_OPATTRS( rs->sr_attr_flags ) ||
1926 ad_inlist( slap_schema.si_ad_contextCSN, rs->sr_attrs )) {
1927 Attribute *a, **ap = NULL;
1929 for ( a=rs->sr_entry->e_attrs; a; a=a->a_next ) {
1930 if ( a->a_desc == slap_schema.si_ad_contextCSN )
1935 for ( ap = &rs->sr_operational_attrs; *ap; ap=&(*ap)->a_next );
1937 a = ch_malloc( sizeof(Attribute));
1938 a->a_desc = slap_schema.si_ad_contextCSN;
1939 a->a_vals = ch_malloc( 2 * sizeof(struct berval));
1940 a->a_vals[1].bv_val = NULL;
1941 a->a_nvals = a->a_vals;
1947 ldap_pvt_thread_mutex_lock( &si->si_csn_mutex );
1949 strcpy( a->a_vals[0].bv_val, si->si_ctxcsnbuf );
1951 ber_dupbv( &a->a_vals[0], &si->si_ctxcsn );
1953 ldap_pvt_thread_mutex_unlock( &si->si_csn_mutex );
1956 return SLAP_CB_CONTINUE;
1968 slap_overinst *on = (slap_overinst *)be->bd_info;
1969 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
1971 if ( strcasecmp( argv[ 0 ], "syncprov-checkpoint" ) == 0 ) {
1973 fprintf( stderr, "%s: line %d: wrong number of arguments in "
1974 "\"syncprov-checkpoint <ops> <minutes>\"\n", fname, lineno );
1977 si->si_chkops = atoi( argv[1] );
1978 si->si_chktime = atoi( argv[2] ) * 60;
1981 } else if ( strcasecmp( argv[0], "syncprov-sessionlog" ) == 0 ) {
1985 fprintf( stderr, "%s: line %d: wrong number of arguments in "
1986 "\"syncprov-sessionlog <size>\"\n", fname, lineno );
1989 size = atoi( argv[1] );
1992 "%s: line %d: session log size %d is negative\n",
1993 fname, lineno, size );
1998 sl = ch_malloc( sizeof( sessionlog ) + LDAP_LUTIL_CSNSTR_BUFSIZE );
1999 sl->sl_mincsn.bv_val = (char *)(sl+1);
2000 sl->sl_mincsn.bv_len = 0;
2002 sl->sl_head = sl->sl_tail = NULL;
2003 ldap_pvt_thread_mutex_init( &sl->sl_mutex );
2010 return SLAP_CONF_UNKNOWN;
2013 /* Cheating - we have no thread pool context for these functions,
2016 typedef struct thread_keys {
2019 ldap_pvt_thread_pool_keyfree_t *xfree;
2023 /* A fake thread context */
2024 static thread_keys thrctx[MAXKEYS];
2026 /* Read any existing contextCSN from the underlying db.
2027 * Then search for any entries newer than that. If no value exists,
2028 * just generate it. Cache whatever result.
2035 slap_overinst *on = (slap_overinst *) be->bd_info;
2036 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2039 char opbuf[OPERATION_BUFFER_SIZE];
2040 char ctxcsnbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
2041 Operation *op = (Operation *)opbuf;
2046 rc = overlay_register_control( be, LDAP_CONTROL_SYNC );
2051 connection_fake_init( &conn, op, thrctx );
2053 op->o_dn = be->be_rootdn;
2054 op->o_ndn = be->be_rootndn;
2056 ctxcsnbuf[0] = '\0';
2058 op->o_bd->bd_info = on->on_info->oi_orig;
2059 rc = be_entry_get_rw( op, be->be_nsuffix, NULL,
2060 slap_schema.si_ad_contextCSN, 0, &e );
2063 a = attr_find( e->e_attrs, slap_schema.si_ad_contextCSN );
2065 si->si_ctxcsn.bv_len = a->a_nvals[0].bv_len;
2066 if ( si->si_ctxcsn.bv_len >= sizeof(si->si_ctxcsnbuf ))
2067 si->si_ctxcsn.bv_len = sizeof(si->si_ctxcsnbuf)-1;
2068 strncpy( si->si_ctxcsnbuf, a->a_nvals[0].bv_val,
2069 si->si_ctxcsn.bv_len );
2070 si->si_ctxcsnbuf[si->si_ctxcsn.bv_len] = '\0';
2071 strcpy( ctxcsnbuf, si->si_ctxcsnbuf );
2073 be_entry_release_rw( op, e, 0 );
2074 op->o_bd->bd_info = (BackendInfo *)on;
2075 op->o_req_dn = be->be_suffix[0];
2076 op->o_req_ndn = be->be_nsuffix[0];
2077 op->ors_scope = LDAP_SCOPE_SUBTREE;
2078 syncprov_findcsn( op, FIND_MAXCSN );
2081 if ( BER_BVISEMPTY( &si->si_ctxcsn ) ) {
2082 slap_get_csn( op, si->si_ctxcsnbuf, sizeof(si->si_ctxcsnbuf),
2083 &si->si_ctxcsn, 0 );
2086 /* If our ctxcsn is different from what was read from the root
2087 * entry, write the new value out.
2089 if ( strcmp( si->si_ctxcsnbuf, ctxcsnbuf )) {
2090 SlapReply rs = {REP_RESULT};
2091 syncprov_checkpoint( op, &rs, on );
2094 op->o_bd->bd_info = (BackendInfo *)on;
2098 /* Write the current contextCSN into the underlying db.
2105 slap_overinst *on = (slap_overinst *) be->bd_info;
2106 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2109 if ( si->si_numops ) {
2111 char opbuf[OPERATION_BUFFER_SIZE];
2112 Operation *op = (Operation *)opbuf;
2113 SlapReply rs = {REP_RESULT};
2115 connection_fake_init( &conn, op, thrctx );
2117 op->o_dn = be->be_rootdn;
2118 op->o_ndn = be->be_rootndn;
2119 syncprov_checkpoint( op, &rs, on );
2121 for ( i=0; thrctx[i].key; i++) {
2122 if ( thrctx[i].xfree )
2123 thrctx[i].xfree( thrctx[i].key, thrctx[i].data );
2124 thrctx[i].key = NULL;
2135 slap_overinst *on = (slap_overinst *)be->bd_info;
2136 syncprov_info_t *si;
2138 si = ch_calloc(1, sizeof(syncprov_info_t));
2139 on->on_bi.bi_private = si;
2140 ldap_pvt_thread_mutex_init( &si->si_csn_mutex );
2141 ldap_pvt_thread_mutex_init( &si->si_ops_mutex );
2142 ldap_pvt_thread_mutex_init( &si->si_mods_mutex );
2143 si->si_ctxcsn.bv_val = si->si_ctxcsnbuf;
2145 csn_anlist[0].an_desc = slap_schema.si_ad_entryCSN;
2146 csn_anlist[0].an_name = slap_schema.si_ad_entryCSN->ad_cname;
2148 uuid_anlist[0].an_desc = slap_schema.si_ad_entryUUID;
2149 uuid_anlist[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2155 syncprov_db_destroy(
2159 slap_overinst *on = (slap_overinst *)be->bd_info;
2160 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2163 ldap_pvt_thread_mutex_destroy( &si->si_mods_mutex );
2164 ldap_pvt_thread_mutex_destroy( &si->si_ops_mutex );
2165 ldap_pvt_thread_mutex_destroy( &si->si_csn_mutex );
2172 static int syncprov_parseCtrl (
2181 struct berval cookie = BER_BVNULL;
2185 if ( op->o_sync != SLAP_CONTROL_NONE ) {
2186 rs->sr_text = "Sync control specified multiple times";
2187 return LDAP_PROTOCOL_ERROR;
2190 if ( op->o_pagedresults != SLAP_CONTROL_NONE ) {
2191 rs->sr_text = "Sync control specified with pagedResults control";
2192 return LDAP_PROTOCOL_ERROR;
2195 if ( BER_BVISEMPTY( &ctrl->ldctl_value ) ) {
2196 rs->sr_text = "Sync control value is empty (or absent)";
2197 return LDAP_PROTOCOL_ERROR;
2200 /* Parse the control value
2201 * syncRequestValue ::= SEQUENCE {
2206 * refreshAndPersist (3)
2208 * cookie syncCookie OPTIONAL
2212 ber = ber_init( &ctrl->ldctl_value );
2214 rs->sr_text = "internal error";
2218 if ( (tag = ber_scanf( ber, "{i" /*}*/, &mode )) == LBER_ERROR ) {
2219 rs->sr_text = "Sync control : mode decoding error";
2220 return LDAP_PROTOCOL_ERROR;
2224 case LDAP_SYNC_REFRESH_ONLY:
2225 mode = SLAP_SYNC_REFRESH;
2227 case LDAP_SYNC_REFRESH_AND_PERSIST:
2228 mode = SLAP_SYNC_REFRESH_AND_PERSIST;
2231 rs->sr_text = "Sync control : unknown update mode";
2232 return LDAP_PROTOCOL_ERROR;
2235 tag = ber_peek_tag( ber, &len );
2237 if ( tag == LDAP_TAG_SYNC_COOKIE ) {
2238 if (( ber_scanf( ber, /*{*/ "o", &cookie )) == LBER_ERROR ) {
2239 rs->sr_text = "Sync control : cookie decoding error";
2240 return LDAP_PROTOCOL_ERROR;
2243 if ( tag == LDAP_TAG_RELOAD_HINT ) {
2244 if (( ber_scanf( ber, /*{*/ "b", &rhint )) == LBER_ERROR ) {
2245 rs->sr_text = "Sync control : rhint decoding error";
2246 return LDAP_PROTOCOL_ERROR;
2249 if (( ber_scanf( ber, /*{*/ "}")) == LBER_ERROR ) {
2250 rs->sr_text = "Sync control : decoding error";
2251 return LDAP_PROTOCOL_ERROR;
2253 sr = op->o_tmpcalloc( 1, sizeof(struct sync_control), op->o_tmpmemctx );
2254 sr->sr_rhint = rhint;
2255 if (!BER_BVISNULL(&cookie)) {
2256 ber_dupbv( &sr->sr_state.octet_str, &cookie );
2257 slap_parse_sync_cookie( &sr->sr_state );
2260 op->o_controls[slap_cids.sc_LDAPsync] = sr;
2262 (void) ber_free( ber, 1 );
2264 op->o_sync = ctrl->ldctl_iscritical
2265 ? SLAP_CONTROL_CRITICAL
2266 : SLAP_CONTROL_NONCRITICAL;
2268 op->o_sync_mode |= mode; /* o_sync_mode shares o_sync */
2270 return LDAP_SUCCESS;
2273 /* This overlay is set up for dynamic loading via moduleload. For static
2274 * configuration, you'll need to arrange for the slap_overinst to be
2275 * initialized and registered by some other function inside slapd.
2278 static slap_overinst syncprov;
2285 rc = register_supported_control( LDAP_CONTROL_SYNC,
2286 SLAP_CTRL_HIDE|SLAP_CTRL_SEARCH, NULL,
2287 syncprov_parseCtrl, &slap_cids.sc_LDAPsync );
2288 if ( rc != LDAP_SUCCESS ) {
2289 fprintf( stderr, "Failed to register control %d\n", rc );
2293 syncprov.on_bi.bi_type = "syncprov";
2294 syncprov.on_bi.bi_db_init = syncprov_db_init;
2295 syncprov.on_bi.bi_db_config = syncprov_db_config;
2296 syncprov.on_bi.bi_db_destroy = syncprov_db_destroy;
2297 syncprov.on_bi.bi_db_open = syncprov_db_open;
2298 syncprov.on_bi.bi_db_close = syncprov_db_close;
2300 syncprov.on_bi.bi_op_abandon = syncprov_op_abandon;
2301 syncprov.on_bi.bi_op_cancel = syncprov_op_abandon;
2303 syncprov.on_bi.bi_op_add = syncprov_op_mod;
2304 syncprov.on_bi.bi_op_compare = syncprov_op_compare;
2305 syncprov.on_bi.bi_op_delete = syncprov_op_mod;
2306 syncprov.on_bi.bi_op_modify = syncprov_op_mod;
2307 syncprov.on_bi.bi_op_modrdn = syncprov_op_mod;
2308 syncprov.on_bi.bi_op_search = syncprov_op_search;
2309 syncprov.on_bi.bi_extended = syncprov_op_extended;
2310 syncprov.on_bi.bi_operational = syncprov_operational;
2312 return overlay_register( &syncprov );
2315 #if SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC
2317 init_module( int argc, char *argv[] )
2319 return syncprov_init();
2321 #endif /* SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC */
2323 #endif /* defined(SLAPD_OVER_SYNCPROV) */