2 /* syncprov.c - syncrepl provider */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2004-2015 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>
33 /* A modify request on a particular entry */
34 typedef struct modinst {
35 struct modinst *mi_next;
39 typedef struct modtarget {
40 struct modinst *mt_mods;
41 struct modinst *mt_tail;
43 ldap_pvt_thread_mutex_t mt_mutex;
46 /* All the info of a psearch result that's shared between
49 typedef struct resinfo {
50 struct syncres *ri_list;
54 struct berval ri_uuid;
56 struct berval ri_cookie;
58 ldap_pvt_thread_mutex_t ri_mutex;
61 /* A queued result of a persistent search */
62 typedef struct syncres {
63 struct syncres *s_next; /* list of results on this psearch queue */
64 struct syncres *s_rilist; /* list of psearches using this result */
69 /* Record of a persistent search */
70 typedef struct syncops {
71 struct syncops *s_next;
72 struct syncprov_info_t *s_si;
73 struct berval s_base; /* ndn of search base */
74 ID s_eid; /* entryID of search base */
75 Operation *s_op; /* search op */
78 struct berval s_filterstr;
79 int s_flags; /* search status */
80 #define PS_IS_REFRESHING 0x01
81 #define PS_IS_DETACHED 0x02
82 #define PS_WROTE_BASE 0x04
83 #define PS_FIND_BASE 0x08
84 #define PS_FIX_FILTER 0x10
85 #define PS_TASK_QUEUED 0x20
87 int s_inuse; /* reference count */
88 struct syncres *s_res;
89 struct syncres *s_restail;
90 ldap_pvt_thread_mutex_t s_mutex;
93 /* A received sync control */
94 typedef struct sync_control {
95 struct sync_cookie sr_state;
99 #if 0 /* moved back to slap.h */
100 #define o_sync o_ctrlflag[slap_cids.sc_LDAPsync]
102 /* o_sync_mode uses data bits of o_sync */
103 #define o_sync_mode o_ctrlflag[slap_cids.sc_LDAPsync]
105 #define SLAP_SYNC_NONE (LDAP_SYNC_NONE<<SLAP_CONTROL_SHIFT)
106 #define SLAP_SYNC_REFRESH (LDAP_SYNC_REFRESH_ONLY<<SLAP_CONTROL_SHIFT)
107 #define SLAP_SYNC_PERSIST (LDAP_SYNC_RESERVED<<SLAP_CONTROL_SHIFT)
108 #define SLAP_SYNC_REFRESH_AND_PERSIST (LDAP_SYNC_REFRESH_AND_PERSIST<<SLAP_CONTROL_SHIFT)
110 /* Record of which searches matched at premodify step */
111 typedef struct syncmatches {
112 struct syncmatches *sm_next;
116 /* Session log data */
117 typedef struct slog_entry {
118 struct slog_entry *se_next;
119 struct berval se_uuid;
120 struct berval se_csn;
125 typedef struct sessionlog {
133 ldap_pvt_thread_mutex_t sl_mutex;
136 /* The main state for this overlay */
137 typedef struct syncprov_info_t {
139 struct berval si_contextdn;
140 BerVarray si_ctxcsn; /* ldapsync context */
143 int si_chkops; /* checkpointing info */
145 int si_numops; /* number of ops since last checkpoint */
146 int si_nopres; /* Skip present phase */
147 int si_usehint; /* use reload hint */
148 int si_active; /* True if there are active mods */
149 int si_dirty; /* True if the context is dirty, i.e changes
150 * have been made without updating the csn. */
151 time_t si_chklast; /* time of last checkpoint */
152 Avlnode *si_mods; /* entries being modified */
154 ldap_pvt_thread_rdwr_t si_csn_rwlock;
155 ldap_pvt_thread_mutex_t si_ops_mutex;
156 ldap_pvt_thread_mutex_t si_mods_mutex;
157 ldap_pvt_thread_mutex_t si_resp_mutex;
160 typedef struct opcookie {
162 syncmatches *smatches;
165 struct berval sdn; /* DN of entry, for deletes */
167 struct berval suuid; /* UUID of entry */
168 struct berval sctxcsn;
169 short osid; /* sid of op csn */
170 short rsid; /* sid of relay */
171 short sreference; /* Is the entry a reference? */
175 typedef struct fbase_cookie {
176 struct berval *fdn; /* DN of a modified entry, for scope testing */
177 syncops *fss; /* persistent search we're testing against */
178 int fbase; /* if TRUE we found the search base and it's still valid */
179 int fscope; /* if TRUE then fdn is within the psearch scope */
182 static AttributeName csn_anlist[3];
183 static AttributeName uuid_anlist[2];
185 /* Build a LDAPsync intermediate state control */
191 int entry_sync_state,
195 struct berval *cookie )
200 BerElementBuffer berbuf;
201 BerElement *ber = (BerElement *)&berbuf;
204 struct berval entryuuid_bv = BER_BVNULL;
206 ber_init2( ber, 0, LBER_USE_DER );
207 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
209 for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
210 AttributeDescription *desc = a->a_desc;
211 if ( desc == slap_schema.si_ad_entryUUID ) {
212 entryuuid_bv = a->a_nvals[0];
217 /* FIXME: what if entryuuid is NULL or empty ? */
219 if ( send_cookie && cookie ) {
220 ber_printf( ber, "{eOON}",
221 entry_sync_state, &entryuuid_bv, cookie );
223 ber_printf( ber, "{eON}",
224 entry_sync_state, &entryuuid_bv );
227 ret = ber_flatten2( ber, &bv, 0 );
229 cp = op->o_tmpalloc( sizeof( LDAPControl ) + bv.bv_len, op->o_tmpmemctx );
230 cp->ldctl_oid = LDAP_CONTROL_SYNC_STATE;
231 cp->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
232 cp->ldctl_value.bv_val = (char *)&cp[1];
233 cp->ldctl_value.bv_len = bv.bv_len;
234 AC_MEMCPY( cp->ldctl_value.bv_val, bv.bv_val, bv.bv_len );
235 ctrls[num_ctrls] = cp;
240 Debug( LDAP_DEBUG_TRACE,
241 "slap_build_sync_ctrl: ber_flatten2 failed (%d)\n",
243 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
250 /* Build a LDAPsync final state control */
258 struct berval *cookie,
262 BerElementBuffer berbuf;
263 BerElement *ber = (BerElement *)&berbuf;
267 ber_init2( ber, NULL, LBER_USE_DER );
268 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
270 ber_printf( ber, "{" );
271 if ( send_cookie && cookie ) {
272 ber_printf( ber, "O", cookie );
274 if ( refreshDeletes == LDAP_SYNC_REFRESH_DELETES ) {
275 ber_printf( ber, "b", refreshDeletes );
277 ber_printf( ber, "N}" );
279 ret = ber_flatten2( ber, &bv, 0 );
281 cp = op->o_tmpalloc( sizeof( LDAPControl ) + bv.bv_len, op->o_tmpmemctx );
282 cp->ldctl_oid = LDAP_CONTROL_SYNC_DONE;
283 cp->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
284 cp->ldctl_value.bv_val = (char *)&cp[1];
285 cp->ldctl_value.bv_len = bv.bv_len;
286 AC_MEMCPY( cp->ldctl_value.bv_val, bv.bv_val, bv.bv_len );
287 ctrls[num_ctrls] = cp;
293 Debug( LDAP_DEBUG_TRACE,
294 "syncprov_done_ctrl: ber_flatten2 failed (%d)\n",
296 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
308 struct berval *cookie,
313 BerElementBuffer berbuf;
314 BerElement *ber = (BerElement *)&berbuf;
315 struct berval rspdata;
319 ber_init2( ber, NULL, LBER_USE_DER );
320 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
324 case LDAP_TAG_SYNC_NEW_COOKIE:
325 ber_printf( ber, "tO", type, cookie );
327 case LDAP_TAG_SYNC_REFRESH_DELETE:
328 case LDAP_TAG_SYNC_REFRESH_PRESENT:
329 ber_printf( ber, "t{", type );
331 ber_printf( ber, "O", cookie );
333 if ( refreshDone == 0 ) {
334 ber_printf( ber, "b", refreshDone );
336 ber_printf( ber, "N}" );
338 case LDAP_TAG_SYNC_ID_SET:
339 ber_printf( ber, "t{", type );
341 ber_printf( ber, "O", cookie );
343 if ( refreshDeletes == 1 ) {
344 ber_printf( ber, "b", refreshDeletes );
346 ber_printf( ber, "[W]", syncUUIDs );
347 ber_printf( ber, "N}" );
350 Debug( LDAP_DEBUG_TRACE,
351 "syncprov_sendinfo: invalid syncinfo type (%d)\n",
357 ret = ber_flatten2( ber, &rspdata, 0 );
360 Debug( LDAP_DEBUG_TRACE,
361 "syncprov_sendinfo: ber_flatten2 failed (%d)\n",
363 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
367 rs->sr_rspoid = LDAP_SYNC_INFO;
368 rs->sr_rspdata = &rspdata;
369 send_ldap_intermediate( op, rs );
370 rs->sr_rspdata = NULL;
376 /* Find a modtarget in an AVL tree */
378 sp_avl_cmp( const void *c1, const void *c2 )
380 const modtarget *m1, *m2;
384 rc = m1->mt_dn.bv_len - m2->mt_dn.bv_len;
387 return ber_bvcmp( &m1->mt_dn, &m2->mt_dn );
390 /* syncprov_findbase:
391 * finds the true DN of the base of a search (with alias dereferencing) and
392 * checks to make sure the base entry doesn't get replaced with a different
393 * entry (e.g., swapping trees via ModDN, or retargeting an alias). If a
394 * change is detected, any persistent search on this base must be terminated /
396 * On the first call, we just save the DN and entryID. On subsequent calls
397 * we compare the DN and entryID with the saved values.
400 findbase_cb( Operation *op, SlapReply *rs )
402 slap_callback *sc = op->o_callback;
404 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
405 fbase_cookie *fc = sc->sc_private;
407 /* If no entryID, we're looking for the first time.
408 * Just store whatever we got.
410 if ( fc->fss->s_eid == NOID ) {
412 fc->fss->s_eid = rs->sr_entry->e_id;
413 ber_dupbv( &fc->fss->s_base, &rs->sr_entry->e_nname );
415 } else if ( rs->sr_entry->e_id == fc->fss->s_eid &&
416 dn_match( &rs->sr_entry->e_nname, &fc->fss->s_base )) {
418 /* OK, the DN is the same and the entryID is the same. */
422 if ( rs->sr_err != LDAP_SUCCESS ) {
423 Debug( LDAP_DEBUG_ANY, "findbase failed! %d\n", rs->sr_err,0,0 );
428 static Filter generic_filter = { LDAP_FILTER_PRESENT, { 0 }, NULL };
429 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
432 syncprov_findbase( Operation *op, fbase_cookie *fc )
434 /* Use basic parameters from syncrepl search, but use
435 * current op's threadctx / tmpmemctx
437 ldap_pvt_thread_mutex_lock( &fc->fss->s_mutex );
438 if ( fc->fss->s_flags & PS_FIND_BASE ) {
439 slap_callback cb = {0};
441 SlapReply frs = { REP_RESULT };
444 fc->fss->s_flags ^= PS_FIND_BASE;
445 ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
447 fop = *fc->fss->s_op;
449 fop.o_bd = fop.o_bd->bd_self;
450 fop.o_hdr = op->o_hdr;
451 fop.o_time = op->o_time;
452 fop.o_tincr = op->o_tincr;
453 fop.o_extra = op->o_extra;
455 cb.sc_response = findbase_cb;
458 fop.o_sync_mode = 0; /* turn off sync mode */
459 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
460 fop.o_callback = &cb;
461 fop.o_tag = LDAP_REQ_SEARCH;
462 fop.ors_scope = LDAP_SCOPE_BASE;
463 fop.ors_limit = NULL;
465 fop.ors_tlimit = SLAP_NO_LIMIT;
466 fop.ors_attrs = slap_anlist_no_attrs;
467 fop.ors_attrsonly = 1;
468 fop.ors_filter = &generic_filter;
469 fop.ors_filterstr = generic_filterstr;
471 rc = fop.o_bd->be_search( &fop, &frs );
473 ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
477 /* After the first call, see if the fdn resides in the scope */
478 if ( fc->fbase == 1 ) {
479 switch ( fc->fss->s_op->ors_scope ) {
480 case LDAP_SCOPE_BASE:
481 fc->fscope = dn_match( fc->fdn, &fc->fss->s_base );
483 case LDAP_SCOPE_ONELEVEL: {
485 dnParent( fc->fdn, &pdn );
486 fc->fscope = dn_match( &pdn, &fc->fss->s_base );
488 case LDAP_SCOPE_SUBTREE:
489 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base );
491 case LDAP_SCOPE_SUBORDINATE:
492 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base ) &&
493 !dn_match( fc->fdn, &fc->fss->s_base );
501 /* If entryID has changed, then the base of this search has
502 * changed. Invalidate the psearch.
504 return LDAP_NO_SUCH_OBJECT;
508 * This function has three different purposes, but they all use a search
509 * that filters on entryCSN so they're combined here.
510 * 1: at startup time, after a contextCSN has been read from the database,
511 * we search for all entries with CSN >= contextCSN in case the contextCSN
512 * was not checkpointed at the previous shutdown.
514 * 2: when the current contextCSN is known and we have a sync cookie, we search
515 * for one entry with CSN = the cookie CSN. If not found, try <= cookie CSN.
516 * If an entry is found, the cookie CSN is valid, otherwise it is stale.
518 * 3: during a refresh phase, we search for all entries with CSN <= the cookie
519 * CSN, and generate Present records for them. We always collect this result
520 * in SyncID sets, even if there's only one match.
522 typedef enum find_csn_t {
529 findmax_cb( Operation *op, SlapReply *rs )
531 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
532 struct berval *maxcsn = op->o_callback->sc_private;
533 Attribute *a = attr_find( rs->sr_entry->e_attrs,
534 slap_schema.si_ad_entryCSN );
536 if ( a && ber_bvcmp( &a->a_vals[0], maxcsn ) > 0 &&
537 slap_parse_csn_sid( &a->a_vals[0] ) == slap_serverID ) {
538 maxcsn->bv_len = a->a_vals[0].bv_len;
539 strcpy( maxcsn->bv_val, a->a_vals[0].bv_val );
546 findcsn_cb( Operation *op, SlapReply *rs )
548 slap_callback *sc = op->o_callback;
550 /* We just want to know that at least one exists, so it's OK if
551 * we exceed the unchecked limit.
553 if ( rs->sr_err == LDAP_ADMINLIMIT_EXCEEDED ||
554 (rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS )) {
555 sc->sc_private = (void *)1;
560 /* Build a list of entryUUIDs for sending in a SyncID set */
564 typedef struct fpres_cookie {
571 findpres_cb( Operation *op, SlapReply *rs )
573 slap_callback *sc = op->o_callback;
574 fpres_cookie *pc = sc->sc_private;
576 int ret = SLAP_CB_CONTINUE;
578 switch ( rs->sr_type ) {
580 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
582 pc->uuids[pc->num].bv_val = pc->last;
583 AC_MEMCPY( pc->uuids[pc->num].bv_val, a->a_nvals[0].bv_val,
584 pc->uuids[pc->num].bv_len );
586 pc->last = pc->uuids[pc->num].bv_val;
587 pc->uuids[pc->num].bv_val = NULL;
590 if ( pc->num != SLAP_SYNCUUID_SET_SIZE )
596 ret = syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET, NULL,
598 pc->uuids[pc->num].bv_val = pc->last;
600 pc->last = pc->uuids[0].bv_val;
610 syncprov_findcsn( Operation *op, find_csn_t mode, struct berval *csn )
612 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
613 syncprov_info_t *si = on->on_bi.bi_private;
615 slap_callback cb = {0};
617 SlapReply frs = { REP_RESULT };
618 char buf[LDAP_PVT_CSNSTR_BUFSIZE + STRLENOF("(entryCSN<=)")];
619 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
620 struct berval maxcsn;
622 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
623 fpres_cookie pcookie;
624 sync_control *srs = NULL;
625 struct slap_limits_set fc_limits;
626 int i, rc = LDAP_SUCCESS, findcsn_retry = 1;
629 if ( mode != FIND_MAXCSN ) {
630 srs = op->o_controls[slap_cids.sc_LDAPsync];
634 fop.o_sync_mode &= SLAP_CONTROL_MASK; /* turn off sync_mode */
635 /* We want pure entries, not referrals */
636 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
639 cf.f_av_desc = slap_schema.si_ad_entryCSN;
640 BER_BVZERO( &cf.f_av_value );
643 fop.o_callback = &cb;
644 fop.ors_limit = NULL;
645 fop.ors_tlimit = SLAP_NO_LIMIT;
646 fop.ors_filter = &cf;
647 fop.ors_filterstr.bv_val = buf;
652 cf.f_choice = LDAP_FILTER_GE;
653 /* If there are multiple CSNs, use the one with our serverID */
654 for ( i=0; i<si->si_numcsns; i++) {
655 if ( slap_serverID == si->si_sids[i] ) {
660 if ( i == si->si_numcsns ) {
661 /* No match: this is multimaster, and none of the content in the DB
662 * originated locally. Treat like no CSN.
664 return LDAP_NO_SUCH_OBJECT;
666 cf.f_av_value = si->si_ctxcsn[maxid];
667 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
668 "(entryCSN>=%s)", cf.f_av_value.bv_val );
669 if ( fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
672 fop.ors_attrsonly = 0;
673 fop.ors_attrs = csn_anlist;
674 fop.ors_slimit = SLAP_NO_LIMIT;
675 cb.sc_private = &maxcsn;
676 cb.sc_response = findmax_cb;
677 strcpy( cbuf, cf.f_av_value.bv_val );
678 maxcsn.bv_val = cbuf;
679 maxcsn.bv_len = cf.f_av_value.bv_len;
682 if ( BER_BVISEMPTY( &cf.f_av_value )) {
683 cf.f_av_value = *csn;
685 fop.o_dn = op->o_bd->be_rootdn;
686 fop.o_ndn = op->o_bd->be_rootndn;
687 fop.o_req_dn = op->o_bd->be_suffix[0];
688 fop.o_req_ndn = op->o_bd->be_nsuffix[0];
689 /* Look for exact match the first time */
690 if ( findcsn_retry ) {
691 cf.f_choice = LDAP_FILTER_EQUALITY;
692 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
693 "(entryCSN=%s)", cf.f_av_value.bv_val );
694 /* On retry, look for <= */
696 cf.f_choice = LDAP_FILTER_LE;
697 fop.ors_limit = &fc_limits;
698 memset( &fc_limits, 0, sizeof( fc_limits ));
699 fc_limits.lms_s_unchecked = 1;
700 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
701 "(entryCSN<=%s)", cf.f_av_value.bv_val );
703 if ( fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
706 fop.ors_attrsonly = 1;
707 fop.ors_attrs = slap_anlist_no_attrs;
709 cb.sc_private = NULL;
710 cb.sc_response = findcsn_cb;
713 fop.ors_filter = op->ors_filter;
714 fop.ors_filterstr = op->ors_filterstr;
715 fop.ors_attrsonly = 0;
716 fop.ors_attrs = uuid_anlist;
717 fop.ors_slimit = SLAP_NO_LIMIT;
718 cb.sc_private = &pcookie;
719 cb.sc_response = findpres_cb;
722 /* preallocate storage for a full set */
723 pcookie.uuids = op->o_tmpalloc( (SLAP_SYNCUUID_SET_SIZE+1) *
724 sizeof(struct berval) + SLAP_SYNCUUID_SET_SIZE * UUID_LEN,
726 pcookie.last = (char *)(pcookie.uuids + SLAP_SYNCUUID_SET_SIZE+1);
727 pcookie.uuids[0].bv_val = pcookie.last;
728 pcookie.uuids[0].bv_len = UUID_LEN;
729 for (i=1; i<SLAP_SYNCUUID_SET_SIZE; i++) {
730 pcookie.uuids[i].bv_val = pcookie.uuids[i-1].bv_val + UUID_LEN;
731 pcookie.uuids[i].bv_len = UUID_LEN;
736 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
737 fop.o_bd->be_search( &fop, &frs );
738 fop.o_bd->bd_info = (BackendInfo *)on;
742 if ( ber_bvcmp( &si->si_ctxcsn[maxid], &maxcsn )) {
744 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
745 assert( !syn->ssyn_validate( syn, &maxcsn ));
747 ber_bvreplace( &si->si_ctxcsn[maxid], &maxcsn );
748 si->si_numops++; /* ensure a checkpoint */
752 /* If matching CSN was not found, invalidate the context. */
753 if ( !cb.sc_private ) {
754 /* If we didn't find an exact match, then try for <= */
755 if ( findcsn_retry ) {
757 rs_reinit( &frs, REP_RESULT );
760 rc = LDAP_NO_SUCH_OBJECT;
764 op->o_tmpfree( pcookie.uuids, op->o_tmpmemctx );
771 static void free_resinfo( syncres *sr )
775 ldap_pvt_thread_mutex_lock( &sr->s_info->ri_mutex );
776 for (st = &sr->s_info->ri_list; *st; st = &(*st)->s_rilist) {
782 if ( !sr->s_info->ri_list )
784 ldap_pvt_thread_mutex_unlock( &sr->s_info->ri_mutex );
786 ldap_pvt_thread_mutex_destroy( &sr->s_info->ri_mutex );
787 if ( sr->s_info->ri_e )
788 entry_free( sr->s_info->ri_e );
789 if ( !BER_BVISNULL( &sr->s_info->ri_cookie ))
790 ch_free( sr->s_info->ri_cookie.bv_val );
791 ch_free( sr->s_info );
796 syncprov_free_syncop( syncops *so, int unlink )
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 );
810 ldap_pvt_thread_mutex_lock( &so->s_si->si_ops_mutex );
811 for ( sop = &so->s_si->si_ops; *sop; sop = &(*sop)->s_next ) {
817 ldap_pvt_thread_mutex_unlock( &so->s_si->si_ops_mutex );
819 if ( so->s_flags & PS_IS_DETACHED ) {
820 filter_free( so->s_op->ors_filter );
821 for ( ga = so->s_op->o_groups; ga; ga=gnext ) {
827 ch_free( so->s_base.bv_val );
828 for ( sr=so->s_res; sr; sr=srnext ) {
833 ldap_pvt_thread_mutex_destroy( &so->s_mutex );
838 /* Send a persistent search response */
840 syncprov_sendresp( Operation *op, resinfo *ri, syncops *so, int mode )
842 SlapReply rs = { REP_SEARCH };
843 struct berval cookie, csns[2];
845 Attribute a_uuid = {0};
847 if ( so->s_op->o_abandon )
848 return SLAPD_ABANDON;
850 rs.sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2, op->o_tmpmemctx );
851 rs.sr_ctrls[1] = NULL;
852 rs.sr_flags = REP_CTRLS_MUSTBEFREED;
853 csns[0] = ri->ri_csn;
854 BER_BVZERO( &csns[1] );
855 slap_compose_sync_cookie( op, &cookie, csns, so->s_rid, slap_serverID ? slap_serverID : -1 );
858 if ( so->s_sid > 0 ) {
859 Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: to=%03x, cookie=%s\n",
860 so->s_sid, cookie.bv_val, 0 );
862 Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: cookie=%s\n",
863 cookie.bv_val, 0, 0 );
867 e_uuid.e_attrs = &a_uuid;
868 a_uuid.a_desc = slap_schema.si_ad_entryUUID;
869 a_uuid.a_nvals = &ri->ri_uuid;
870 rs.sr_err = syncprov_state_ctrl( op, &rs, &e_uuid,
871 mode, rs.sr_ctrls, 0, 1, &cookie );
872 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
874 rs.sr_entry = &e_uuid;
875 if ( mode == LDAP_SYNC_ADD || mode == LDAP_SYNC_MODIFY ) {
877 e_uuid.e_private = NULL;
882 if ( ri->ri_isref && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
883 rs.sr_ref = get_entry_referrals( op, rs.sr_entry );
884 rs.sr_err = send_search_reference( op, &rs );
885 ber_bvarray_free( rs.sr_ref );
889 case LDAP_SYNC_MODIFY:
890 rs.sr_attrs = op->ors_attrs;
891 rs.sr_err = send_search_entry( op, &rs );
893 case LDAP_SYNC_DELETE:
894 e_uuid.e_attrs = NULL;
895 e_uuid.e_name = ri->ri_dn;
896 e_uuid.e_nname = ri->ri_ndn;
897 if ( ri->ri_isref && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
898 struct berval bv = BER_BVNULL;
900 rs.sr_err = send_search_reference( op, &rs );
902 rs.sr_err = send_search_entry( op, &rs );
912 syncprov_qstart( syncops *so );
914 /* Play back queued responses */
916 syncprov_qplay( Operation *op, syncops *so )
918 slap_overinst *on = LDAP_SLIST_FIRST(&so->s_op->o_extra)->oe_key;
923 ldap_pvt_thread_mutex_lock( &so->s_mutex );
925 /* Exit loop with mutex held */
928 so->s_res = sr->s_next;
930 so->s_restail = NULL;
931 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
933 if ( !so->s_op->o_abandon ) {
935 if ( sr->s_mode == LDAP_SYNC_NEW_COOKIE ) {
936 SlapReply rs = { REP_INTERMEDIATE };
938 rc = syncprov_sendinfo( op, &rs, LDAP_TAG_SYNC_NEW_COOKIE,
939 &sr->s_info->ri_cookie, 0, NULL, 0 );
941 rc = syncprov_sendresp( op, sr->s_info, so, sr->s_mode );
948 if ( so->s_op->o_abandon )
951 /* Exit loop with mutex held */
952 ldap_pvt_thread_mutex_lock( &so->s_mutex );
957 /* We now only send one change at a time, to prevent one
958 * psearch from hogging all the CPU. Resubmit this task if
959 * there are more responses queued and no errors occurred.
962 if ( rc == 0 && so->s_res ) {
963 syncprov_qstart( so );
965 so->s_flags ^= PS_TASK_QUEUED;
968 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
972 /* task for playing back queued responses */
974 syncprov_qtask( void *ctx, void *arg )
977 OperationBuffer opbuf;
984 op->o_hdr = &opbuf.ob_hdr;
985 op->o_controls = opbuf.ob_controls;
986 memset( op->o_controls, 0, sizeof(opbuf.ob_controls) );
987 op->o_sync = SLAP_CONTROL_IGNORED;
989 *op->o_hdr = *so->s_op->o_hdr;
991 op->o_tmpmemctx = slap_sl_mem_create(SLAP_SLAB_SIZE, SLAP_SLAB_STACK, ctx, 1);
992 op->o_tmpmfuncs = &slap_sl_mfuncs;
993 op->o_threadctx = ctx;
995 /* syncprov_qplay expects a fake db */
996 be = *so->s_op->o_bd;
997 be.be_flags |= SLAP_DBFLAG_OVERLAY;
999 LDAP_SLIST_FIRST(&op->o_extra) = NULL;
1000 op->o_callback = NULL;
1002 rc = syncprov_qplay( op, so );
1004 /* decrement use count... */
1005 syncprov_free_syncop( so, 1 );
1010 /* Start the task to play back queued psearch responses */
1012 syncprov_qstart( syncops *so )
1014 so->s_flags |= PS_TASK_QUEUED;
1016 ldap_pvt_thread_pool_submit( &connection_pool,
1017 syncprov_qtask, so );
1020 /* Queue a persistent search response */
1022 syncprov_qresp( opcookie *opc, syncops *so, int mode )
1027 struct berval csn = opc->sctxcsn;
1029 sr = ch_malloc( sizeof( syncres ));
1032 if ( !opc->ssres.s_info ) {
1034 srsize = sizeof( resinfo );
1036 srsize += csn.bv_len + 1;
1040 ri = ch_malloc( srsize );
1041 ri->ri_dn = opc->se->e_name;
1042 ri->ri_ndn = opc->se->e_nname;
1043 a = attr_find( opc->se->e_attrs, slap_schema.si_ad_entryUUID );
1045 ri->ri_uuid = a->a_nvals[0];
1047 ri->ri_uuid.bv_len = 0;
1049 ri->ri_csn.bv_val = (char *)(ri + 1);
1050 ri->ri_csn.bv_len = csn.bv_len;
1051 memcpy( ri->ri_csn.bv_val, csn.bv_val, csn.bv_len );
1052 ri->ri_csn.bv_val[csn.bv_len] = '\0';
1054 ri->ri_csn.bv_val = NULL;
1057 srsize += opc->suuid.bv_len +
1058 opc->sdn.bv_len + 1 + opc->sndn.bv_len + 1;
1059 ri = ch_malloc( srsize );
1060 ri->ri_dn.bv_val = (char *)(ri + 1);
1061 ri->ri_dn.bv_len = opc->sdn.bv_len;
1062 ri->ri_ndn.bv_val = lutil_strcopy( ri->ri_dn.bv_val,
1063 opc->sdn.bv_val ) + 1;
1064 ri->ri_ndn.bv_len = opc->sndn.bv_len;
1065 ri->ri_uuid.bv_val = lutil_strcopy( ri->ri_ndn.bv_val,
1066 opc->sndn.bv_val ) + 1;
1067 ri->ri_uuid.bv_len = opc->suuid.bv_len;
1068 AC_MEMCPY( ri->ri_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1070 ri->ri_csn.bv_val = ri->ri_uuid.bv_val + ri->ri_uuid.bv_len;
1071 memcpy( ri->ri_csn.bv_val, csn.bv_val, csn.bv_len );
1072 ri->ri_csn.bv_val[csn.bv_len] = '\0';
1074 ri->ri_csn.bv_val = NULL;
1077 ri->ri_list = &opc->ssres;
1079 ri->ri_csn.bv_len = csn.bv_len;
1080 ri->ri_isref = opc->sreference;
1081 BER_BVZERO( &ri->ri_cookie );
1082 ldap_pvt_thread_mutex_init( &ri->ri_mutex );
1084 opc->ssres.s_info = ri;
1086 ri = opc->ssres.s_info;
1088 ldap_pvt_thread_mutex_lock( &ri->ri_mutex );
1089 sr->s_rilist = ri->ri_list;
1091 if ( mode == LDAP_SYNC_NEW_COOKIE && BER_BVISNULL( &ri->ri_cookie )) {
1092 syncprov_info_t *si = opc->son->on_bi.bi_private;
1094 slap_compose_sync_cookie( NULL, &ri->ri_cookie, si->si_ctxcsn,
1095 so->s_rid, slap_serverID ? slap_serverID : -1);
1097 ldap_pvt_thread_mutex_unlock( &ri->ri_mutex );
1099 ldap_pvt_thread_mutex_lock( &so->s_mutex );
1103 so->s_restail->s_next = sr;
1107 /* If the base of the psearch was modified, check it next time round */
1108 if ( so->s_flags & PS_WROTE_BASE ) {
1109 so->s_flags ^= PS_WROTE_BASE;
1110 so->s_flags |= PS_FIND_BASE;
1112 if (( so->s_flags & (PS_IS_DETACHED|PS_TASK_QUEUED)) == PS_IS_DETACHED ) {
1113 syncprov_qstart( so );
1115 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
1116 return LDAP_SUCCESS;
1120 syncprov_drop_psearch( syncops *so, int lock )
1122 if ( so->s_flags & PS_IS_DETACHED ) {
1124 ldap_pvt_thread_mutex_lock( &so->s_op->o_conn->c_mutex );
1125 so->s_op->o_conn->c_n_ops_executing--;
1126 so->s_op->o_conn->c_n_ops_completed++;
1127 LDAP_STAILQ_REMOVE( &so->s_op->o_conn->c_ops, so->s_op, Operation,
1130 ldap_pvt_thread_mutex_unlock( &so->s_op->o_conn->c_mutex );
1132 return syncprov_free_syncop( so, 0 );
1136 syncprov_ab_cleanup( Operation *op, SlapReply *rs )
1138 slap_callback *sc = op->o_callback;
1139 op->o_callback = sc->sc_next;
1140 syncprov_drop_psearch( sc->sc_private, 0 );
1141 op->o_tmpfree( sc, op->o_tmpmemctx );
1146 syncprov_op_abandon( Operation *op, SlapReply *rs )
1148 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1149 syncprov_info_t *si = on->on_bi.bi_private;
1152 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1153 for ( sop=&si->si_ops; (so = *sop); sop = &(*sop)->s_next ) {
1154 if ( so->s_op->o_connid == op->o_connid &&
1155 so->s_op->o_msgid == op->orn_msgid ) {
1156 so->s_op->o_abandon = 1;
1161 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1163 /* Is this really a Cancel exop? */
1164 if ( op->o_tag != LDAP_REQ_ABANDON ) {
1165 so->s_op->o_cancel = SLAP_CANCEL_ACK;
1166 rs->sr_err = LDAP_CANCELLED;
1167 send_ldap_result( so->s_op, rs );
1168 if ( so->s_flags & PS_IS_DETACHED ) {
1170 cb = op->o_tmpcalloc( 1, sizeof(slap_callback), op->o_tmpmemctx );
1171 cb->sc_cleanup = syncprov_ab_cleanup;
1172 cb->sc_next = op->o_callback;
1173 cb->sc_private = so;
1174 op->o_callback = cb;
1175 return SLAP_CB_CONTINUE;
1178 syncprov_drop_psearch( so, 0 );
1180 return SLAP_CB_CONTINUE;
1183 /* Find which persistent searches are affected by this operation */
1185 syncprov_matchops( Operation *op, opcookie *opc, int saveit )
1187 slap_overinst *on = opc->son;
1188 syncprov_info_t *si = on->on_bi.bi_private;
1195 struct berval newdn;
1197 BackendDB *b0 = op->o_bd, db;
1199 fc.fdn = &op->o_req_ndn;
1200 /* compute new DN */
1201 if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1203 if ( op->orr_nnewSup ) pdn = *op->orr_nnewSup;
1204 else dnParent( fc.fdn, &pdn );
1205 build_new_dn( &newdn, &pdn, &op->orr_nnewrdn, op->o_tmpmemctx );
1209 if ( op->o_tag != LDAP_REQ_ADD ) {
1210 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1214 rc = overlay_entry_get_ov( op, fc.fdn, NULL, NULL, 0, &e, on );
1215 /* If we're sending responses now, make a copy and unlock the DB */
1216 if ( e && !saveit ) {
1218 opc->se = entry_dup( e );
1219 overlay_entry_release_ov( op, e, 0, on );
1230 opc->se = entry_dup( e );
1235 if ( saveit || op->o_tag == LDAP_REQ_ADD ) {
1236 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1237 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1238 opc->sreference = is_entry_referral( e );
1239 a = attr_find( e->e_attrs, slap_schema.si_ad_entryUUID );
1241 ber_dupbv_x( &opc->suuid, &a->a_nvals[0], op->o_tmpmemctx );
1242 } else if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1243 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1244 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1245 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1246 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1249 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1250 for (pss = &si->si_ops; *pss; pss = gonext ? &(*pss)->s_next : pss)
1256 syncops *snext, *ss = *pss;
1259 if ( ss->s_op->o_abandon )
1262 /* Don't send ops back to the originator */
1263 if ( opc->osid > 0 && opc->osid == ss->s_sid ) {
1264 Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping original sid %03x\n",
1269 /* Don't send ops back to the messenger */
1270 if ( opc->rsid > 0 && opc->rsid == ss->s_sid ) {
1271 Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping relayed sid %03x\n",
1281 /* If the base of the search is missing, signal a refresh */
1282 rc = syncprov_findbase( op, &fc );
1283 if ( rc != LDAP_SUCCESS ) {
1284 SlapReply rs = {REP_RESULT};
1285 send_ldap_error( ss->s_op, &rs, LDAP_SYNC_REFRESH_REQUIRED,
1286 "search base has changed" );
1288 if ( syncprov_drop_psearch( ss, 1 ) )
1294 /* If we're sending results now, look for this op in old matches */
1298 /* Did we modify the search base? */
1299 if ( dn_match( &op->o_req_ndn, &ss->s_base )) {
1300 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1301 ss->s_flags |= PS_WROTE_BASE;
1302 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1305 for ( sm=opc->smatches, old=(syncmatches *)&opc->smatches; sm;
1306 old=sm, sm=sm->sm_next ) {
1307 if ( sm->sm_op == ss ) {
1309 old->sm_next = sm->sm_next;
1310 op->o_tmpfree( sm, op->o_tmpmemctx );
1317 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1320 oh.oh_conn = ss->s_op->o_conn;
1321 oh.oh_connid = ss->s_op->o_connid;
1322 op2.o_bd = op->o_bd->bd_self;
1324 op2.o_extra = op->o_extra;
1325 op2.o_callback = NULL;
1326 if (ss->s_flags & PS_FIX_FILTER) {
1327 /* Skip the AND/GE clause that we stuck on in front. We
1328 would lose deletes/mods that happen during the refresh
1329 phase otherwise (ITS#6555) */
1330 op2.ors_filter = ss->s_op->ors_filter->f_and->f_next;
1332 rc = test_filter( &op2, e, op2.ors_filter );
1333 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1336 Debug( LDAP_DEBUG_TRACE, "syncprov_matchops: sid %03x fscope %d rc %d\n",
1337 ss->s_sid, fc.fscope, rc );
1339 /* check if current o_req_dn is in scope and matches filter */
1340 if ( fc.fscope && rc == LDAP_COMPARE_TRUE ) {
1342 sm = op->o_tmpalloc( sizeof(syncmatches), op->o_tmpmemctx );
1343 sm->sm_next = opc->smatches;
1345 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1347 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1350 /* if found send UPDATE else send ADD */
1351 syncprov_qresp( opc, ss,
1352 found ? LDAP_SYNC_MODIFY : LDAP_SYNC_ADD );
1354 } else if ( !saveit && found ) {
1356 syncprov_qresp( opc, ss, LDAP_SYNC_DELETE );
1357 } else if ( !saveit ) {
1358 syncprov_qresp( opc, ss, LDAP_SYNC_NEW_COOKIE );
1360 if ( !saveit && found ) {
1361 /* Decrement s_inuse, was incremented when called
1362 * with saveit == TRUE
1365 if ( syncprov_free_syncop( ss, 0 ) ) {
1371 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1373 if ( op->o_tag != LDAP_REQ_ADD && e ) {
1374 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1378 overlay_entry_release_ov( op, e, 0, on );
1382 if ( opc->ssres.s_info )
1383 free_resinfo( &opc->ssres );
1385 entry_free( opc->se );
1388 op->o_tmpfree( fc.fdn->bv_val, op->o_tmpmemctx );
1394 syncprov_op_cleanup( Operation *op, SlapReply *rs )
1396 slap_callback *cb = op->o_callback;
1397 opcookie *opc = cb->sc_private;
1398 slap_overinst *on = opc->son;
1399 syncprov_info_t *si = on->on_bi.bi_private;
1400 syncmatches *sm, *snext;
1403 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1404 if ( si->si_active )
1406 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1408 for (sm = opc->smatches; sm; sm=snext) {
1409 snext = sm->sm_next;
1410 syncprov_free_syncop( sm->sm_op, 1 );
1411 op->o_tmpfree( sm, op->o_tmpmemctx );
1414 /* Remove op from lock table */
1417 modinst *mi = (modinst *)(opc+1), **m2;
1418 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1419 for (m2 = &mt->mt_mods; ; m2 = &(*m2)->mi_next) {
1422 if ( mt->mt_tail == mi )
1423 mt->mt_tail = ( m2 == &mt->mt_mods ) ? NULL : (modinst *)m2;
1427 /* If there are more, promote the next one */
1428 if ( mt->mt_mods ) {
1429 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1431 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1432 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1433 avl_delete( &si->si_mods, mt, sp_avl_cmp );
1434 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1435 ldap_pvt_thread_mutex_destroy( &mt->mt_mutex );
1436 ch_free( mt->mt_dn.bv_val );
1440 if ( !BER_BVISNULL( &opc->suuid ))
1441 op->o_tmpfree( opc->suuid.bv_val, op->o_tmpmemctx );
1442 if ( !BER_BVISNULL( &opc->sndn ))
1443 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1444 if ( !BER_BVISNULL( &opc->sdn ))
1445 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1446 op->o_callback = cb->sc_next;
1447 op->o_tmpfree(cb, op->o_tmpmemctx);
1453 syncprov_checkpoint( Operation *op, slap_overinst *on )
1455 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
1458 SlapReply rsm = {REP_RESULT};
1459 slap_callback cb = {0};
1464 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1467 for ( i=0; i<si->si_numcsns; i++ ) {
1468 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1471 mod.sml_numvals = si->si_numcsns;
1472 mod.sml_values = si->si_ctxcsn;
1473 mod.sml_nvalues = NULL;
1474 mod.sml_desc = slap_schema.si_ad_contextCSN;
1475 mod.sml_op = LDAP_MOD_REPLACE;
1476 mod.sml_flags = SLAP_MOD_INTERNAL;
1477 mod.sml_next = NULL;
1479 cb.sc_response = slap_null_cb;
1481 opm.o_tag = LDAP_REQ_MODIFY;
1482 opm.o_callback = &cb;
1483 opm.orm_modlist = &mod;
1484 opm.orm_no_opattrs = 1;
1485 if ( SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1486 be = *on->on_info->oi_origdb;
1489 opm.o_req_dn = si->si_contextdn;
1490 opm.o_req_ndn = si->si_contextdn;
1491 bi = opm.o_bd->bd_info;
1492 opm.o_bd->bd_info = on->on_info->oi_orig;
1493 opm.o_managedsait = SLAP_CONTROL_NONCRITICAL;
1494 opm.o_no_schema_check = 1;
1495 opm.o_bd->be_modify( &opm, &rsm );
1497 if ( rsm.sr_err == LDAP_NO_SUCH_OBJECT &&
1498 SLAP_SYNC_SUBENTRY( opm.o_bd )) {
1500 char txtbuf[SLAP_TEXT_BUFLEN];
1501 size_t textlen = sizeof txtbuf;
1502 Entry *e = slap_create_context_csn_entry( opm.o_bd, NULL );
1503 rs_reinit( &rsm, REP_RESULT );
1504 slap_mods2entry( &mod, &e, 0, 1, &text, txtbuf, textlen);
1506 opm.o_bd->be_add( &opm, &rsm );
1507 if ( e == opm.ora_e )
1508 be_entry_release_w( &opm, opm.ora_e );
1510 opm.o_bd->bd_info = bi;
1512 if ( mod.sml_next != NULL ) {
1513 slap_mods_free( mod.sml_next, 1 );
1516 for ( i=0; i<si->si_numcsns; i++ ) {
1517 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1523 syncprov_add_slog( Operation *op )
1525 opcookie *opc = op->o_callback->sc_private;
1526 slap_overinst *on = opc->son;
1527 syncprov_info_t *si = on->on_bi.bi_private;
1533 if ( BER_BVISEMPTY( &op->o_csn ) ) {
1534 /* During the syncrepl refresh phase we can receive operations
1535 * without a csn. We cannot reliably determine the consumers
1536 * state with respect to such operations, so we ignore them and
1537 * wipe out anything in the log if we see them.
1539 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1540 while ( se = sl->sl_head ) {
1541 sl->sl_head = se->se_next;
1546 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1550 /* Allocate a record. UUIDs are not NUL-terminated. */
1551 se = ch_malloc( sizeof( slog_entry ) + opc->suuid.bv_len +
1552 op->o_csn.bv_len + 1 );
1554 se->se_tag = op->o_tag;
1556 se->se_uuid.bv_val = (char *)(&se[1]);
1557 AC_MEMCPY( se->se_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1558 se->se_uuid.bv_len = opc->suuid.bv_len;
1560 se->se_csn.bv_val = se->se_uuid.bv_val + opc->suuid.bv_len;
1561 AC_MEMCPY( se->se_csn.bv_val, op->o_csn.bv_val, op->o_csn.bv_len );
1562 se->se_csn.bv_val[op->o_csn.bv_len] = '\0';
1563 se->se_csn.bv_len = op->o_csn.bv_len;
1564 se->se_sid = slap_parse_csn_sid( &se->se_csn );
1566 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1567 if ( sl->sl_head ) {
1568 /* Keep the list in csn order. */
1569 if ( ber_bvcmp( &sl->sl_tail->se_csn, &se->se_csn ) <= 0 ) {
1570 sl->sl_tail->se_next = se;
1575 for ( sep = &sl->sl_head; *sep; sep = &(*sep)->se_next ) {
1576 if ( ber_bvcmp( &se->se_csn, &(*sep)->se_csn ) < 0 ) {
1586 if ( !sl->sl_mincsn ) {
1588 sl->sl_mincsn = ch_malloc( 2*sizeof( struct berval ));
1589 sl->sl_sids = ch_malloc( sizeof( int ));
1590 sl->sl_sids[0] = se->se_sid;
1591 ber_dupbv( sl->sl_mincsn, &se->se_csn );
1592 BER_BVZERO( &sl->sl_mincsn[1] );
1596 while ( sl->sl_num > sl->sl_size ) {
1599 sl->sl_head = se->se_next;
1600 for ( i=0; i<sl->sl_numcsns; i++ )
1601 if ( sl->sl_sids[i] >= se->se_sid )
1603 if ( i == sl->sl_numcsns || sl->sl_sids[i] != se->se_sid ) {
1604 slap_insert_csn_sids( (struct sync_cookie *)sl,
1605 i, se->se_sid, &se->se_csn );
1607 ber_bvreplace( &sl->sl_mincsn[i], &se->se_csn );
1612 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1616 /* Just set a flag if we found the matching entry */
1618 playlog_cb( Operation *op, SlapReply *rs )
1620 if ( rs->sr_type == REP_SEARCH ) {
1621 op->o_callback->sc_private = (void *)1;
1626 /* enter with sl->sl_mutex locked, release before returning */
1628 syncprov_playlog( Operation *op, SlapReply *rs, sessionlog *sl,
1629 sync_control *srs, BerVarray ctxcsn, int numcsns, int *sids )
1631 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1633 int i, j, ndel, num, nmods, mmods;
1634 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
1636 struct berval delcsn[2];
1638 if ( !sl->sl_num ) {
1639 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1647 uuids = op->o_tmpalloc( (num+1) * sizeof( struct berval ) +
1648 num * UUID_LEN, op->o_tmpmemctx );
1649 uuids[0].bv_val = (char *)(uuids + num + 1);
1651 delcsn[0].bv_len = 0;
1652 delcsn[0].bv_val = cbuf;
1653 BER_BVZERO(&delcsn[1]);
1655 /* Make a copy of the relevant UUIDs. Put the Deletes up front
1656 * and everything else at the end. Do this first so we can
1657 * unlock the list mutex.
1659 Debug( LDAP_DEBUG_SYNC, "srs csn %s\n",
1660 srs->sr_state.ctxcsn[0].bv_val, 0, 0 );
1661 for ( se=sl->sl_head; se; se=se->se_next ) {
1663 Debug( LDAP_DEBUG_SYNC, "log csn %s\n", se->se_csn.bv_val, 0, 0 );
1665 for ( k=0; k<srs->sr_state.numcsns; k++ ) {
1666 if ( se->se_sid == srs->sr_state.sids[k] ) {
1667 ndel = ber_bvcmp( &se->se_csn, &srs->sr_state.ctxcsn[k] );
1672 Debug( LDAP_DEBUG_SYNC, "cmp %d, too old\n", ndel, 0, 0 );
1676 for ( k=0; k<numcsns; k++ ) {
1677 if ( se->se_sid == sids[k] ) {
1678 ndel = ber_bvcmp( &se->se_csn, &ctxcsn[k] );
1683 Debug( LDAP_DEBUG_SYNC, "cmp %d, too new\n", ndel, 0, 0 );
1686 if ( se->se_tag == LDAP_REQ_DELETE ) {
1689 AC_MEMCPY( cbuf, se->se_csn.bv_val, se->se_csn.bv_len );
1690 delcsn[0].bv_len = se->se_csn.bv_len;
1691 delcsn[0].bv_val[delcsn[0].bv_len] = '\0';
1693 if ( se->se_tag == LDAP_REQ_ADD )
1698 uuids[j].bv_val = uuids[0].bv_val + (j * UUID_LEN);
1699 AC_MEMCPY(uuids[j].bv_val, se->se_uuid.bv_val, UUID_LEN);
1700 uuids[j].bv_len = UUID_LEN;
1702 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1706 /* Zero out unused slots */
1707 for ( i=ndel; i < num - nmods; i++ )
1708 uuids[i].bv_len = 0;
1710 /* Mods must be validated to see if they belong in this delete set.
1714 /* Strip any duplicates */
1715 for ( i=0; i<nmods; i++ ) {
1716 for ( j=0; j<ndel; j++ ) {
1717 if ( bvmatch( &uuids[j], &uuids[num - 1 - i] )) {
1718 uuids[num - 1 - i].bv_len = 0;
1723 if ( uuids[num - 1 - i].bv_len == 0 ) continue;
1724 for ( j=0; j<i; j++ ) {
1725 if ( bvmatch( &uuids[num - 1 - j], &uuids[num - 1 - i] )) {
1726 uuids[num - 1 - i].bv_len = 0;
1737 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
1738 slap_callback cb = {0};
1742 fop.o_sync_mode = 0;
1743 fop.o_callback = &cb;
1744 fop.ors_limit = NULL;
1745 fop.ors_tlimit = SLAP_NO_LIMIT;
1746 fop.ors_attrs = slap_anlist_all_attributes;
1747 fop.ors_attrsonly = 0;
1748 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
1750 af.f_choice = LDAP_FILTER_AND;
1753 mf.f_choice = LDAP_FILTER_EQUALITY;
1755 mf.f_av_desc = slap_schema.si_ad_entryUUID;
1756 mf.f_next = fop.ors_filter;
1758 fop.ors_filter = ⁡
1760 cb.sc_response = playlog_cb;
1761 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
1763 for ( i=ndel; i<num; i++ ) {
1764 if ( uuids[i].bv_len != 0 ) {
1765 SlapReply frs = { REP_RESULT };
1767 mf.f_av_value = uuids[i];
1768 cb.sc_private = NULL;
1770 rc = fop.o_bd->be_search( &fop, &frs );
1772 /* If entry was not found, add to delete list */
1773 if ( !cb.sc_private ) {
1774 uuids[ndel++] = uuids[i];
1778 fop.o_bd->bd_info = (BackendInfo *)on;
1781 struct berval cookie;
1783 if ( delcsn[0].bv_len ) {
1784 slap_compose_sync_cookie( op, &cookie, delcsn, srs->sr_state.rid,
1785 slap_serverID ? slap_serverID : -1 );
1787 Debug( LDAP_DEBUG_SYNC, "syncprov_playlog: cookie=%s\n", cookie.bv_val, 0, 0 );
1790 uuids[ndel].bv_val = NULL;
1791 syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET,
1792 delcsn[0].bv_len ? &cookie : NULL, 0, uuids, 1 );
1793 if ( delcsn[0].bv_len ) {
1794 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
1797 op->o_tmpfree( uuids, op->o_tmpmemctx );
1801 syncprov_op_response( Operation *op, SlapReply *rs )
1803 opcookie *opc = op->o_callback->sc_private;
1804 slap_overinst *on = opc->son;
1805 syncprov_info_t *si = on->on_bi.bi_private;
1808 if ( rs->sr_err == LDAP_SUCCESS )
1810 struct berval maxcsn;
1811 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
1812 int do_check = 0, have_psearches, foundit, csn_changed = 0;
1814 ldap_pvt_thread_mutex_lock( &si->si_resp_mutex );
1816 /* Update our context CSN */
1818 maxcsn.bv_val = cbuf;
1819 maxcsn.bv_len = sizeof(cbuf);
1820 ldap_pvt_thread_rdwr_wlock( &si->si_csn_rwlock );
1822 slap_get_commit_csn( op, &maxcsn, &foundit );
1823 if ( BER_BVISEMPTY( &maxcsn ) && SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1824 /* syncrepl queues the CSN values in the db where
1825 * it is configured , not where the changes are made.
1826 * So look for a value in the glue db if we didn't
1827 * find any in this db.
1829 BackendDB *be = op->o_bd;
1830 op->o_bd = select_backend( &be->be_nsuffix[0], 1);
1831 maxcsn.bv_val = cbuf;
1832 maxcsn.bv_len = sizeof(cbuf);
1833 slap_get_commit_csn( op, &maxcsn, &foundit );
1836 if ( !BER_BVISEMPTY( &maxcsn ) ) {
1839 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1840 assert( !syn->ssyn_validate( syn, &maxcsn ));
1842 sid = slap_parse_csn_sid( &maxcsn );
1843 for ( i=0; i<si->si_numcsns; i++ ) {
1844 if ( sid < si->si_sids[i] )
1846 if ( sid == si->si_sids[i] ) {
1847 if ( ber_bvcmp( &maxcsn, &si->si_ctxcsn[i] ) > 0 ) {
1848 ber_bvreplace( &si->si_ctxcsn[i], &maxcsn );
1854 /* It's a new SID for us */
1855 if ( i == si->si_numcsns || sid != si->si_sids[i] ) {
1856 slap_insert_csn_sids((struct sync_cookie *)&(si->si_ctxcsn),
1862 /* Don't do any processing for consumer contextCSN updates */
1863 if ( op->o_dont_replicate ) {
1864 if ( op->o_tag == LDAP_REQ_MODIFY &&
1865 op->orm_modlist->sml_op == LDAP_MOD_REPLACE &&
1866 op->orm_modlist->sml_desc == slap_schema.si_ad_contextCSN ) {
1867 /* Catch contextCSN updates from syncrepl. We have to look at
1868 * all the attribute values, as there may be more than one csn
1869 * that changed, and only one can be passed in the csn queue.
1871 Modifications *mod = op->orm_modlist;
1875 for ( i=0; i<mod->sml_numvals; i++ ) {
1876 sid = slap_parse_csn_sid( &mod->sml_values[i] );
1877 for ( j=0; j<si->si_numcsns; j++ ) {
1878 if ( sid < si->si_sids[j] )
1880 if ( sid == si->si_sids[j] ) {
1881 if ( ber_bvcmp( &mod->sml_values[i], &si->si_ctxcsn[j] ) > 0 ) {
1882 ber_bvreplace( &si->si_ctxcsn[j], &mod->sml_values[i] );
1889 if ( j == si->si_numcsns || sid != si->si_sids[j] ) {
1890 slap_insert_csn_sids( (struct sync_cookie *)&si->si_ctxcsn,
1891 j, sid, &mod->sml_values[i] );
1897 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1899 if ( csn_changed ) {
1901 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1902 for ( ss = si->si_ops; ss; ss = ss->s_next ) {
1903 if ( ss->s_op->o_abandon )
1905 /* Send the updated csn to all syncrepl consumers,
1906 * including the server from which it originated.
1907 * The syncrepl consumer and syncprov provider on
1908 * the originating server may be configured to store
1909 * their csn values in different entries.
1911 syncprov_qresp( opc, ss, LDAP_SYNC_NEW_COOKIE );
1913 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1916 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1925 if ( si->si_chkops || si->si_chktime ) {
1926 /* Never checkpoint adding the context entry,
1929 if ( op->o_tag != LDAP_REQ_ADD ||
1930 !dn_match( &op->o_req_ndn, &si->si_contextdn )) {
1931 if ( si->si_chkops && si->si_numops >= si->si_chkops ) {
1935 if ( si->si_chktime &&
1936 (op->o_time - si->si_chklast >= si->si_chktime )) {
1937 if ( si->si_chklast ) {
1939 si->si_chklast = op->o_time;
1946 si->si_dirty = !csn_changed;
1947 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1950 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1951 syncprov_checkpoint( op, on );
1952 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1955 /* only update consumer ctx if this is a newer csn */
1956 if ( csn_changed ) {
1957 opc->sctxcsn = maxcsn;
1960 /* Handle any persistent searches */
1961 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1962 have_psearches = ( si->si_ops != NULL );
1963 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1964 if ( have_psearches ) {
1967 case LDAP_REQ_MODIFY:
1968 case LDAP_REQ_MODRDN:
1969 case LDAP_REQ_EXTENDED:
1970 syncprov_matchops( op, opc, 0 );
1972 case LDAP_REQ_DELETE:
1973 /* for each match in opc->smatches:
1976 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1977 if ( sm->sm_op->s_op->o_abandon )
1979 syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_DELETE );
1985 /* Add any log records */
1986 if ( si->si_logs ) {
1987 syncprov_add_slog( op );
1989 leave: ldap_pvt_thread_mutex_unlock( &si->si_resp_mutex );
1991 return SLAP_CB_CONTINUE;
1994 /* We don't use a subentry to store the context CSN any more.
1995 * We expose the current context CSN as an operational attribute
1996 * of the suffix entry.
1999 syncprov_op_compare( Operation *op, SlapReply *rs )
2001 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2002 syncprov_info_t *si = on->on_bi.bi_private;
2003 int rc = SLAP_CB_CONTINUE;
2005 if ( dn_match( &op->o_req_ndn, &si->si_contextdn ) &&
2006 op->oq_compare.rs_ava->aa_desc == slap_schema.si_ad_contextCSN )
2011 e.e_name = si->si_contextdn;
2012 e.e_nname = si->si_contextdn;
2015 a.a_desc = slap_schema.si_ad_contextCSN;
2017 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2019 a.a_vals = si->si_ctxcsn;
2020 a.a_nvals = a.a_vals;
2021 a.a_numvals = si->si_numcsns;
2023 rs->sr_err = access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc,
2024 &op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL );
2025 if ( ! rs->sr_err ) {
2026 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
2027 goto return_results;
2030 if ( get_assert( op ) &&
2031 ( test_filter( op, &e, get_assertion( op ) ) != LDAP_COMPARE_TRUE ) )
2033 rs->sr_err = LDAP_ASSERTION_FAILED;
2034 goto return_results;
2038 rs->sr_err = LDAP_COMPARE_FALSE;
2040 if ( attr_valfind( &a,
2041 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
2042 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
2043 &op->oq_compare.rs_ava->aa_value, NULL, op->o_tmpmemctx ) == 0 )
2045 rs->sr_err = LDAP_COMPARE_TRUE;
2050 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2052 send_ldap_result( op, rs );
2054 if( rs->sr_err == LDAP_COMPARE_FALSE || rs->sr_err == LDAP_COMPARE_TRUE ) {
2055 rs->sr_err = LDAP_SUCCESS;
2064 syncprov_op_mod( Operation *op, SlapReply *rs )
2066 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2067 syncprov_info_t *si = on->on_bi.bi_private;
2070 int have_psearches, cbsize;
2072 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2073 have_psearches = ( si->si_ops != NULL );
2075 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2077 cbsize = sizeof(slap_callback) + sizeof(opcookie) +
2078 (have_psearches ? sizeof(modinst) : 0 );
2080 cb = op->o_tmpcalloc(1, cbsize, op->o_tmpmemctx);
2081 opc = (opcookie *)(cb+1);
2083 cb->sc_response = syncprov_op_response;
2084 cb->sc_cleanup = syncprov_op_cleanup;
2085 cb->sc_private = opc;
2086 cb->sc_next = op->o_callback;
2087 op->o_callback = cb;
2091 if ( op->o_csn.bv_val ) {
2092 opc->osid = slap_parse_csn_sid( &op->o_csn );
2094 if ( op->o_controls ) {
2095 struct sync_cookie *scook =
2096 op->o_controls[slap_cids.sc_LDAPsync];
2098 opc->rsid = scook->sid;
2101 if ( op->o_dont_replicate )
2102 return SLAP_CB_CONTINUE;
2104 /* If there are active persistent searches, lock this operation.
2105 * See seqmod.c for the locking logic on its own.
2107 if ( have_psearches ) {
2108 modtarget *mt, mtdummy;
2111 mi = (modinst *)(opc+1);
2114 /* See if we're already modifying this entry... */
2115 mtdummy.mt_dn = op->o_req_ndn;
2117 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
2118 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
2120 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
2121 if ( mt->mt_mods == NULL ) {
2122 /* Cannot reuse this mt, as another thread is about
2123 * to release it in syncprov_op_cleanup. Wait for them
2124 * to finish; our own insert is required to succeed.
2126 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2127 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
2128 ldap_pvt_thread_yield();
2133 mt->mt_tail->mi_next = mi;
2135 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
2136 /* wait for this op to get to head of list */
2137 while ( mt->mt_mods != mi ) {
2139 /* don't wait on other mods from the same thread */
2140 for ( m2 = mt->mt_mods; m2; m2 = m2->mi_next ) {
2141 if ( m2->mi_op->o_threadctx == op->o_threadctx ) {
2148 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2149 /* FIXME: if dynamic config can delete overlays or
2150 * databases we'll have to check for cleanup here.
2151 * Currently it's not an issue because there are
2152 * no dynamic config deletes...
2154 if ( slapd_shutdown )
2155 return SLAPD_ABANDON;
2157 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
2158 ldap_pvt_thread_yield();
2159 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
2161 /* clean up if the caller is giving up */
2162 if ( op->o_abandon ) {
2165 for (m2 = &mt->mt_mods; ; m2 = &(*m2)->mi_next) {
2168 if ( mt->mt_tail == mi )
2169 mt->mt_tail = ( m2 == &mt->mt_mods ) ? NULL : (modinst *)m2;
2173 for (sc = &op->o_callback; ; sc = &(*sc)->sc_next) {
2179 op->o_tmpfree( cb, op->o_tmpmemctx );
2180 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2181 return SLAPD_ABANDON;
2184 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2186 /* Record that we're modifying this entry now */
2187 mt = ch_malloc( sizeof(modtarget) );
2190 ber_dupbv( &mt->mt_dn, &mi->mi_op->o_req_ndn );
2191 ldap_pvt_thread_mutex_init( &mt->mt_mutex );
2192 avl_insert( &si->si_mods, mt, sp_avl_cmp, avl_dup_error );
2193 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
2198 if (( have_psearches || si->si_logs ) && op->o_tag != LDAP_REQ_ADD )
2199 syncprov_matchops( op, opc, 1 );
2201 return SLAP_CB_CONTINUE;
2205 syncprov_op_extended( Operation *op, SlapReply *rs )
2207 if ( exop_is_write( op ))
2208 return syncprov_op_mod( op, rs );
2210 return SLAP_CB_CONTINUE;
2213 typedef struct searchstate {
2214 slap_overinst *ss_on;
2216 BerVarray ss_ctxcsn;
2219 #define SS_PRESENT 0x01
2220 #define SS_CHANGED 0x02
2224 typedef struct SyncOperationBuffer {
2228 AttributeName sob_extra; /* not always present */
2229 /* Further data allocated here */
2230 } SyncOperationBuffer;
2233 syncprov_detach_op( Operation *op, syncops *so, slap_overinst *on )
2235 SyncOperationBuffer *sopbuf2;
2240 GroupAssertion *g1, *g2;
2242 /* count the search attrs */
2243 for (i=0; op->ors_attrs && !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2244 alen += op->ors_attrs[i].an_name.bv_len + 1;
2246 /* Make a new copy of the operation */
2247 size = offsetof( SyncOperationBuffer, sob_extra ) +
2248 (i ? ( (i+1) * sizeof(AttributeName) + alen) : 0) +
2249 op->o_req_dn.bv_len + 1 +
2250 op->o_req_ndn.bv_len + 1 +
2251 op->o_ndn.bv_len + 1 +
2252 so->s_filterstr.bv_len + 1;
2253 sopbuf2 = ch_calloc( 1, size );
2254 op2 = &sopbuf2->sob_op;
2255 op2->o_hdr = &sopbuf2->sob_hdr;
2256 LDAP_SLIST_FIRST(&op2->o_extra) = &sopbuf2->sob_oe;
2258 /* Copy the fields we care about explicitly, leave the rest alone */
2259 *op2->o_hdr = *op->o_hdr;
2260 op2->o_tag = op->o_tag;
2261 op2->o_time = op->o_time;
2262 op2->o_bd = on->on_info->oi_origdb;
2263 op2->o_request = op->o_request;
2264 op2->o_managedsait = op->o_managedsait;
2265 LDAP_SLIST_FIRST(&op2->o_extra)->oe_key = on;
2266 LDAP_SLIST_NEXT(LDAP_SLIST_FIRST(&op2->o_extra), oe_next) = NULL;
2268 ptr = (char *) sopbuf2 + offsetof( SyncOperationBuffer, sob_extra );
2270 op2->ors_attrs = (AttributeName *) ptr;
2271 ptr = (char *) &op2->ors_attrs[i+1];
2272 for (i=0; !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2273 op2->ors_attrs[i] = op->ors_attrs[i];
2274 op2->ors_attrs[i].an_name.bv_val = ptr;
2275 ptr = lutil_strcopy( ptr, op->ors_attrs[i].an_name.bv_val ) + 1;
2277 BER_BVZERO( &op2->ors_attrs[i].an_name );
2280 op2->o_authz = op->o_authz;
2281 op2->o_ndn.bv_val = ptr;
2282 ptr = lutil_strcopy(ptr, op->o_ndn.bv_val) + 1;
2283 op2->o_dn = op2->o_ndn;
2284 op2->o_req_dn.bv_len = op->o_req_dn.bv_len;
2285 op2->o_req_dn.bv_val = ptr;
2286 ptr = lutil_strcopy(ptr, op->o_req_dn.bv_val) + 1;
2287 op2->o_req_ndn.bv_len = op->o_req_ndn.bv_len;
2288 op2->o_req_ndn.bv_val = ptr;
2289 ptr = lutil_strcopy(ptr, op->o_req_ndn.bv_val) + 1;
2290 op2->ors_filterstr.bv_val = ptr;
2291 strcpy( ptr, so->s_filterstr.bv_val );
2292 op2->ors_filterstr.bv_len = so->s_filterstr.bv_len;
2294 /* Skip the AND/GE clause that we stuck on in front */
2295 if ( so->s_flags & PS_FIX_FILTER ) {
2296 op2->ors_filter = op->ors_filter->f_and->f_next;
2297 so->s_flags ^= PS_FIX_FILTER;
2299 op2->ors_filter = op->ors_filter;
2301 op2->ors_filter = filter_dup( op2->ors_filter, NULL );
2304 /* Copy any cached group ACLs individually */
2305 op2->o_groups = NULL;
2306 for ( g1=op->o_groups; g1; g1=g1->ga_next ) {
2307 g2 = ch_malloc( sizeof(GroupAssertion) + g1->ga_len );
2309 strcpy( g2->ga_ndn, g1->ga_ndn );
2310 g2->ga_next = op2->o_groups;
2313 /* Don't allow any further group caching */
2314 op2->o_do_not_cache = 1;
2316 /* Add op2 to conn so abandon will find us */
2317 op->o_conn->c_n_ops_executing++;
2318 op->o_conn->c_n_ops_completed--;
2319 LDAP_STAILQ_INSERT_TAIL( &op->o_conn->c_ops, op2, o_next );
2320 so->s_flags |= PS_IS_DETACHED;
2322 /* Prevent anyone else from trying to send a result for this op */
2327 syncprov_search_response( Operation *op, SlapReply *rs )
2329 searchstate *ss = op->o_callback->sc_private;
2330 slap_overinst *on = ss->ss_on;
2331 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2332 sync_control *srs = op->o_controls[slap_cids.sc_LDAPsync];
2334 if ( rs->sr_type == REP_SEARCH || rs->sr_type == REP_SEARCHREF ) {
2336 /* If we got a referral without a referral object, there's
2337 * something missing that we cannot replicate. Just ignore it.
2338 * The consumer will abort because we didn't send the expected
2341 if ( !rs->sr_entry ) {
2342 assert( rs->sr_entry != NULL );
2343 Debug( LDAP_DEBUG_ANY, "bogus referral in context\n",0,0,0 );
2344 return SLAP_CB_CONTINUE;
2346 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryCSN );
2347 if ( a == NULL && rs->sr_operational_attrs != NULL ) {
2348 a = attr_find( rs->sr_operational_attrs, slap_schema.si_ad_entryCSN );
2352 sid = slap_parse_csn_sid( &a->a_nvals[0] );
2354 /* Don't send changed entries back to the originator */
2355 if ( sid == srs->sr_state.sid && srs->sr_state.numcsns ) {
2356 Debug( LDAP_DEBUG_SYNC,
2357 "Entry %s changed by peer, ignored\n",
2358 rs->sr_entry->e_name.bv_val, 0, 0 );
2359 return LDAP_SUCCESS;
2362 /* If not a persistent search */
2364 /* Make sure entry is less than the snapshot'd contextCSN */
2365 for ( i=0; i<ss->ss_numcsns; i++ ) {
2366 if ( sid == ss->ss_sids[i] && ber_bvcmp( &a->a_nvals[0],
2367 &ss->ss_ctxcsn[i] ) > 0 ) {
2368 Debug( LDAP_DEBUG_SYNC,
2369 "Entry %s CSN %s greater than snapshot %s\n",
2370 rs->sr_entry->e_name.bv_val,
2371 a->a_nvals[0].bv_val,
2372 ss->ss_ctxcsn[i].bv_val );
2373 return LDAP_SUCCESS;
2378 /* Don't send old entries twice */
2379 if ( srs->sr_state.ctxcsn ) {
2380 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2381 if ( sid == srs->sr_state.sids[i] &&
2382 ber_bvcmp( &a->a_nvals[0],
2383 &srs->sr_state.ctxcsn[i] )<= 0 ) {
2384 Debug( LDAP_DEBUG_SYNC,
2385 "Entry %s CSN %s older or equal to ctx %s\n",
2386 rs->sr_entry->e_name.bv_val,
2387 a->a_nvals[0].bv_val,
2388 srs->sr_state.ctxcsn[i].bv_val );
2389 return LDAP_SUCCESS;
2394 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2396 rs->sr_ctrls[1] = NULL;
2397 rs->sr_flags |= REP_CTRLS_MUSTBEFREED;
2398 /* If we're in delta-sync mode, always send a cookie */
2399 if ( si->si_nopres && si->si_usehint && a ) {
2400 struct berval cookie;
2401 slap_compose_sync_cookie( op, &cookie, a->a_nvals, srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
2402 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2403 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 1, &cookie );
2404 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2406 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2407 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 0, NULL );
2409 } else if ( rs->sr_type == REP_RESULT && rs->sr_err == LDAP_SUCCESS ) {
2410 struct berval cookie = BER_BVNULL;
2412 if ( ( ss->ss_flags & SS_CHANGED ) &&
2413 ss->ss_ctxcsn && !BER_BVISNULL( &ss->ss_ctxcsn[0] )) {
2414 slap_compose_sync_cookie( op, &cookie, ss->ss_ctxcsn,
2415 srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
2417 Debug( LDAP_DEBUG_SYNC, "syncprov_search_response: cookie=%s\n", cookie.bv_val, 0, 0 );
2420 /* Is this a regular refresh?
2421 * Note: refresh never gets here if there were no changes
2424 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2426 rs->sr_ctrls[1] = NULL;
2427 rs->sr_flags |= REP_CTRLS_MUSTBEFREED;
2428 rs->sr_err = syncprov_done_ctrl( op, rs, rs->sr_ctrls,
2429 0, 1, &cookie, ( ss->ss_flags & SS_PRESENT ) ? LDAP_SYNC_REFRESH_PRESENTS :
2430 LDAP_SYNC_REFRESH_DELETES );
2431 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2433 /* It's RefreshAndPersist, transition to Persist phase */
2434 syncprov_sendinfo( op, rs, ( ss->ss_flags & SS_PRESENT ) ?
2435 LDAP_TAG_SYNC_REFRESH_PRESENT : LDAP_TAG_SYNC_REFRESH_DELETE,
2436 ( ss->ss_flags & SS_CHANGED ) ? &cookie : NULL,
2438 if ( !BER_BVISNULL( &cookie ))
2439 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2441 /* Detach this Op from frontend control */
2442 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
2444 /* But not if this connection was closed along the way */
2445 if ( op->o_abandon ) {
2446 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2447 /* syncprov_ab_cleanup will free this syncop */
2448 return SLAPD_ABANDON;
2451 ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex );
2452 /* Turn off the refreshing flag */
2453 ss->ss_so->s_flags ^= PS_IS_REFRESHING;
2455 syncprov_detach_op( op, ss->ss_so, on );
2457 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2459 /* If there are queued responses, fire them off */
2460 if ( ss->ss_so->s_res )
2461 syncprov_qstart( ss->ss_so );
2462 ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
2465 return LDAP_SUCCESS;
2469 return SLAP_CB_CONTINUE;
2473 syncprov_op_search( Operation *op, SlapReply *rs )
2475 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2476 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2478 int gotstate = 0, changed = 0, do_present = 0;
2479 syncops *sop = NULL;
2483 int i, *sids, numcsns;
2484 struct berval mincsn, maxcsn;
2488 if ( !(op->o_sync_mode & SLAP_SYNC_REFRESH) ) return SLAP_CB_CONTINUE;
2490 if ( op->ors_deref & LDAP_DEREF_SEARCHING ) {
2491 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR, "illegal value for derefAliases" );
2495 /* snapshot the ctxcsn */
2496 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2497 numcsns = si->si_numcsns;
2499 ber_bvarray_dup_x( &ctxcsn, si->si_ctxcsn, op->o_tmpmemctx );
2500 sids = op->o_tmpalloc( numcsns * sizeof(int), op->o_tmpmemctx );
2501 for ( i=0; i<numcsns; i++ )
2502 sids[i] = si->si_sids[i];
2507 dirty = si->si_dirty;
2508 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2510 /* We know nothing - do nothing */
2512 rs->sr_err = LDAP_SUCCESS;
2513 send_ldap_result( op, rs );
2517 srs = op->o_controls[slap_cids.sc_LDAPsync];
2519 /* If this is a persistent search, set it up right away */
2520 if ( op->o_sync_mode & SLAP_SYNC_PERSIST ) {
2530 so.s_flags = PS_IS_REFRESHING | PS_FIND_BASE;
2531 /* syncprov_findbase expects to be called as a callback... */
2532 sc.sc_private = &opc;
2534 ldap_pvt_thread_mutex_init( &so.s_mutex );
2535 cb = op->o_callback;
2536 op->o_callback = ≻
2537 rs->sr_err = syncprov_findbase( op, &fc );
2538 op->o_callback = cb;
2539 ldap_pvt_thread_mutex_destroy( &so.s_mutex );
2541 if ( rs->sr_err != LDAP_SUCCESS ) {
2542 send_ldap_result( op, rs );
2545 sop = ch_malloc( sizeof( syncops ));
2547 sop->s_rid = srs->sr_state.rid;
2548 sop->s_sid = srs->sr_state.sid;
2549 /* set refcount=2 to prevent being freed out from under us
2550 * by abandons that occur while we're running here
2554 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2555 while ( si->si_active ) {
2556 /* Wait for active mods to finish before proceeding, as they
2557 * may already have inspected the si_ops list looking for
2558 * consumers to replicate the change to. Using the log
2559 * doesn't help, as we may finish playing it before the
2560 * active mods gets added to it.
2562 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2563 if ( slapd_shutdown ) {
2565 return SLAPD_ABANDON;
2567 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
2568 ldap_pvt_thread_yield();
2569 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2571 if ( op->o_abandon ) {
2572 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2574 return SLAPD_ABANDON;
2576 ldap_pvt_thread_mutex_init( &sop->s_mutex );
2577 sop->s_next = si->si_ops;
2580 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2583 /* If we have a cookie, handle the PRESENT lookups */
2584 if ( srs->sr_state.ctxcsn ) {
2588 /* If we don't have any CSN of our own yet, pretend nothing
2594 if ( !si->si_nopres )
2595 do_present = SS_PRESENT;
2597 /* If there are SIDs we don't recognize in the cookie, drop them */
2598 for (i=0; i<srs->sr_state.numcsns; ) {
2599 for (j=i; j<numcsns; j++) {
2600 if ( srs->sr_state.sids[i] <= sids[j] ) {
2605 if ( j == numcsns || srs->sr_state.sids[i] != sids[j] ) {
2606 char *tmp = srs->sr_state.ctxcsn[i].bv_val;
2607 srs->sr_state.numcsns--;
2608 for ( j=i; j<srs->sr_state.numcsns; j++ ) {
2609 srs->sr_state.ctxcsn[j] = srs->sr_state.ctxcsn[j+1];
2610 srs->sr_state.sids[j] = srs->sr_state.sids[j+1];
2612 srs->sr_state.ctxcsn[j].bv_val = tmp;
2613 srs->sr_state.ctxcsn[j].bv_len = 0;
2619 if (srs->sr_state.numcsns != numcsns) {
2620 /* consumer doesn't have the right number of CSNs */
2621 changed = SS_CHANGED;
2622 if ( srs->sr_state.ctxcsn ) {
2623 ber_bvarray_free_x( srs->sr_state.ctxcsn, op->o_tmpmemctx );
2624 srs->sr_state.ctxcsn = NULL;
2626 if ( srs->sr_state.sids ) {
2627 slap_sl_free( srs->sr_state.sids, op->o_tmpmemctx );
2628 srs->sr_state.sids = NULL;
2630 srs->sr_state.numcsns = 0;
2634 /* Find the smallest CSN which differs from contextCSN */
2637 for ( i=0,j=0; i<srs->sr_state.numcsns; i++ ) {
2639 while ( srs->sr_state.sids[i] != sids[j] ) j++;
2640 if ( BER_BVISEMPTY( &maxcsn ) || ber_bvcmp( &maxcsn,
2641 &srs->sr_state.ctxcsn[i] ) < 0 ) {
2642 maxcsn = srs->sr_state.ctxcsn[i];
2645 newer = ber_bvcmp( &srs->sr_state.ctxcsn[i], &ctxcsn[j] );
2646 /* If our state is newer, tell consumer about changes */
2648 changed = SS_CHANGED;
2649 if ( BER_BVISEMPTY( &mincsn ) || ber_bvcmp( &mincsn,
2650 &srs->sr_state.ctxcsn[i] ) > 0 ) {
2651 mincsn = srs->sr_state.ctxcsn[i];
2654 } else if ( newer > 0 && sids[j] == slap_serverID ) {
2655 /* our state is older, complain to consumer */
2656 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
2657 rs->sr_text = "consumer state is newer than provider!";
2660 syncops **sp = &si->si_ops;
2662 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2663 while ( *sp != sop )
2664 sp = &(*sp)->s_next;
2666 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2669 rs->sr_ctrls = NULL;
2670 send_ldap_result( op, rs );
2674 if ( BER_BVISEMPTY( &mincsn )) {
2679 /* If nothing has changed, shortcut it */
2680 if ( !changed && !dirty ) {
2682 no_change: if ( !(op->o_sync_mode & SLAP_SYNC_PERSIST) ) {
2683 LDAPControl *ctrls[2];
2687 syncprov_done_ctrl( op, rs, ctrls, 0, 0,
2688 NULL, LDAP_SYNC_REFRESH_DELETES );
2689 rs->sr_ctrls = ctrls;
2690 rs->sr_err = LDAP_SUCCESS;
2691 send_ldap_result( op, rs );
2692 rs->sr_ctrls = NULL;
2698 /* Do we have a sessionlog for this search? */
2702 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
2703 /* Are there any log entries, and is the consumer state
2704 * present in the session log?
2706 if ( sl->sl_num > 0 ) {
2708 for ( i=0; i<sl->sl_numcsns; i++ ) {
2709 /* SID not present == new enough */
2710 if ( minsid < sl->sl_sids[i] ) {
2715 if ( minsid == sl->sl_sids[i] ) {
2717 if ( ber_bvcmp( &mincsn, &sl->sl_mincsn[i] ) >= 0 )
2722 /* SID not present == new enough */
2723 if ( i == sl->sl_numcsns )
2728 /* mutex is unlocked in playlog */
2729 syncprov_playlog( op, rs, sl, srs, ctxcsn, numcsns, sids );
2731 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
2734 /* Is the CSN still present in the database? */
2735 if ( syncprov_findcsn( op, FIND_CSN, &mincsn ) != LDAP_SUCCESS ) {
2736 /* No, so a reload is required */
2737 /* the 2.2 consumer doesn't send this hint */
2738 if ( si->si_usehint && srs->sr_rhint == 0 ) {
2740 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2742 op->o_tmpfree( sids, op->o_tmpmemctx );
2743 rs->sr_err = LDAP_SYNC_REFRESH_REQUIRED;
2744 rs->sr_text = "sync cookie is stale";
2747 if ( srs->sr_state.ctxcsn ) {
2748 ber_bvarray_free_x( srs->sr_state.ctxcsn, op->o_tmpmemctx );
2749 srs->sr_state.ctxcsn = NULL;
2751 if ( srs->sr_state.sids ) {
2752 slap_sl_free( srs->sr_state.sids, op->o_tmpmemctx );
2753 srs->sr_state.sids = NULL;
2755 srs->sr_state.numcsns = 0;
2758 /* If changed and doing Present lookup, send Present UUIDs */
2759 if ( do_present && syncprov_findcsn( op, FIND_PRESENT, 0 ) !=
2762 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2764 op->o_tmpfree( sids, op->o_tmpmemctx );
2769 /* No consumer state, assume something has changed */
2770 changed = SS_CHANGED;
2774 /* Append CSN range to search filter, save original filter
2775 * for persistent search evaluation
2778 ldap_pvt_thread_mutex_lock( &sop->s_mutex );
2779 sop->s_filterstr = op->ors_filterstr;
2780 /* correct the refcount that was set to 2 before */
2784 /* If something changed, find the changes */
2785 if ( gotstate && ( changed || dirty ) ) {
2786 Filter *fand, *fava;
2788 fand = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2789 fand->f_choice = LDAP_FILTER_AND;
2790 fand->f_next = NULL;
2791 fava = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2793 fava->f_choice = LDAP_FILTER_GE;
2794 fava->f_ava = op->o_tmpalloc( sizeof(AttributeAssertion), op->o_tmpmemctx );
2795 fava->f_ava->aa_desc = slap_schema.si_ad_entryCSN;
2796 #ifdef LDAP_COMP_MATCH
2797 fava->f_ava->aa_cf = NULL;
2799 ber_dupbv_x( &fava->f_ava->aa_value, &mincsn, op->o_tmpmemctx );
2800 fava->f_next = op->ors_filter;
2801 op->ors_filter = fand;
2802 filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2804 sop->s_flags |= PS_FIX_FILTER;
2808 ldap_pvt_thread_mutex_unlock( &sop->s_mutex );
2811 /* Let our callback add needed info to returned entries */
2812 cb = op->o_tmpcalloc(1, sizeof(slap_callback)+sizeof(searchstate), op->o_tmpmemctx);
2813 ss = (searchstate *)(cb+1);
2816 ss->ss_flags = do_present | changed;
2817 ss->ss_ctxcsn = ctxcsn;
2818 ss->ss_numcsns = numcsns;
2820 cb->sc_response = syncprov_search_response;
2821 cb->sc_private = ss;
2822 cb->sc_next = op->o_callback;
2823 op->o_callback = cb;
2825 /* If this is a persistent search and no changes were reported during
2826 * the refresh phase, just invoke the response callback to transition
2827 * us into persist phase
2829 if ( !changed && !dirty ) {
2830 rs->sr_err = LDAP_SUCCESS;
2831 rs->sr_nentries = 0;
2832 send_ldap_result( op, rs );
2835 return SLAP_CB_CONTINUE;
2839 syncprov_operational(
2843 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2844 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2846 /* This prevents generating unnecessarily; frontend will strip
2847 * any statically stored copy.
2849 if ( op->o_sync != SLAP_CONTROL_NONE )
2850 return SLAP_CB_CONTINUE;
2852 if ( rs->sr_entry &&
2853 dn_match( &rs->sr_entry->e_nname, &si->si_contextdn )) {
2855 if ( SLAP_OPATTRS( rs->sr_attr_flags ) ||
2856 ad_inlist( slap_schema.si_ad_contextCSN, rs->sr_attrs )) {
2857 Attribute *a, **ap = NULL;
2859 for ( a=rs->sr_entry->e_attrs; a; a=a->a_next ) {
2860 if ( a->a_desc == slap_schema.si_ad_contextCSN )
2864 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2865 if ( si->si_ctxcsn ) {
2867 for ( ap = &rs->sr_operational_attrs; *ap;
2868 ap=&(*ap)->a_next );
2870 a = attr_alloc( slap_schema.si_ad_contextCSN );
2875 if ( rs_entry2modifiable( op, rs, on )) {
2876 a = attr_find( rs->sr_entry->e_attrs,
2877 slap_schema.si_ad_contextCSN );
2879 if ( a->a_nvals != a->a_vals ) {
2880 ber_bvarray_free( a->a_nvals );
2883 ber_bvarray_free( a->a_vals );
2887 attr_valadd( a, si->si_ctxcsn, si->si_ctxcsn, si->si_numcsns );
2889 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2892 return SLAP_CB_CONTINUE;
2902 static ConfigDriver sp_cf_gen;
2904 static ConfigTable spcfg[] = {
2905 { "syncprov-checkpoint", "ops> <minutes", 3, 3, 0, ARG_MAGIC|SP_CHKPT,
2906 sp_cf_gen, "( OLcfgOvAt:1.1 NAME 'olcSpCheckpoint' "
2907 "DESC 'ContextCSN checkpoint interval in ops and minutes' "
2908 "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
2909 { "syncprov-sessionlog", "ops", 2, 2, 0, ARG_INT|ARG_MAGIC|SP_SESSL,
2910 sp_cf_gen, "( OLcfgOvAt:1.2 NAME 'olcSpSessionlog' "
2911 "DESC 'Session log size in ops' "
2912 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
2913 { "syncprov-nopresent", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_NOPRES,
2914 sp_cf_gen, "( OLcfgOvAt:1.3 NAME 'olcSpNoPresent' "
2915 "DESC 'Omit Present phase processing' "
2916 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2917 { "syncprov-reloadhint", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_USEHINT,
2918 sp_cf_gen, "( OLcfgOvAt:1.4 NAME 'olcSpReloadHint' "
2919 "DESC 'Observe Reload Hint in Request control' "
2920 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2921 { NULL, NULL, 0, 0, 0, ARG_IGNORED }
2924 static ConfigOCs spocs[] = {
2925 { "( OLcfgOvOc:1.1 "
2926 "NAME 'olcSyncProvConfig' "
2927 "DESC 'SyncRepl Provider configuration' "
2928 "SUP olcOverlayConfig "
2929 "MAY ( olcSpCheckpoint "
2930 "$ olcSpSessionlog "
2932 "$ olcSpReloadHint "
2934 Cft_Overlay, spcfg },
2939 sp_cf_gen(ConfigArgs *c)
2941 slap_overinst *on = (slap_overinst *)c->bi;
2942 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2945 if ( c->op == SLAP_CONFIG_EMIT ) {
2946 switch ( c->type ) {
2948 if ( si->si_chkops || si->si_chktime ) {
2950 /* we assume si_chktime is a multiple of 60
2951 * because the parsed value was originally
2952 * multiplied by 60 */
2953 bv.bv_len = snprintf( c->cr_msg, sizeof( c->cr_msg ),
2954 "%d %d", si->si_chkops, si->si_chktime/60 );
2955 if ( bv.bv_len >= sizeof( c->cr_msg ) ) {
2958 bv.bv_val = c->cr_msg;
2959 value_add_one( &c->rvalue_vals, &bv );
2966 if ( si->si_logs ) {
2967 c->value_int = si->si_logs->sl_size;
2973 if ( si->si_nopres ) {
2980 if ( si->si_usehint ) {
2988 } else if ( c->op == LDAP_MOD_DELETE ) {
2989 switch ( c->type ) {
2996 si->si_logs->sl_size = 0;
2998 rc = LDAP_NO_SUCH_ATTRIBUTE;
3001 if ( si->si_nopres )
3004 rc = LDAP_NO_SUCH_ATTRIBUTE;
3007 if ( si->si_usehint )
3010 rc = LDAP_NO_SUCH_ATTRIBUTE;
3015 switch ( c->type ) {
3017 if ( lutil_atoi( &si->si_chkops, c->argv[1] ) != 0 ) {
3018 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint ops # \"%s\"",
3019 c->argv[0], c->argv[1] );
3020 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
3021 "%s: %s\n", c->log, c->cr_msg, 0 );
3022 return ARG_BAD_CONF;
3024 if ( si->si_chkops <= 0 ) {
3025 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint ops # \"%d\"",
3026 c->argv[0], si->si_chkops );
3027 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
3028 "%s: %s\n", c->log, c->cr_msg, 0 );
3029 return ARG_BAD_CONF;
3031 if ( lutil_atoi( &si->si_chktime, c->argv[2] ) != 0 ) {
3032 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint time \"%s\"",
3033 c->argv[0], c->argv[1] );
3034 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
3035 "%s: %s\n", c->log, c->cr_msg, 0 );
3036 return ARG_BAD_CONF;
3038 if ( si->si_chktime <= 0 ) {
3039 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint time \"%d\"",
3040 c->argv[0], si->si_chkops );
3041 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
3042 "%s: %s\n", c->log, c->cr_msg, 0 );
3043 return ARG_BAD_CONF;
3045 si->si_chktime *= 60;
3049 int size = c->value_int;
3052 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s size %d is negative",
3054 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
3055 "%s: %s\n", c->log, c->cr_msg, 0 );
3056 return ARG_BAD_CONF;
3060 sl = ch_malloc( sizeof( sessionlog ));
3061 sl->sl_mincsn = NULL;
3065 sl->sl_head = sl->sl_tail = NULL;
3066 ldap_pvt_thread_mutex_init( &sl->sl_mutex );
3073 si->si_nopres = c->value_int;
3076 si->si_usehint = c->value_int;
3082 /* ITS#3456 we cannot run this search on the main thread, must use a
3083 * child thread in order to insure we have a big enough stack.
3090 syncprov_findcsn( ptr, FIND_MAXCSN, 0 );
3095 /* Read any existing contextCSN from the underlying db.
3096 * Then search for any entries newer than that. If no value exists,
3097 * just generate it. Cache whatever result.
3105 slap_overinst *on = (slap_overinst *) be->bd_info;
3106 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3108 Connection conn = { 0 };
3109 OperationBuffer opbuf;
3114 void *thrctx = NULL;
3116 if ( !SLAP_LASTMOD( be )) {
3117 Debug( LDAP_DEBUG_ANY,
3118 "syncprov_db_open: invalid config, lastmod must be enabled\n", 0, 0, 0 );
3122 if ( slapMode & SLAP_TOOL_MODE ) {
3126 rc = overlay_register_control( be, LDAP_CONTROL_SYNC );
3131 thrctx = ldap_pvt_thread_pool_context();
3132 connection_fake_init2( &conn, &opbuf, thrctx, 0 );
3135 op->o_dn = be->be_rootdn;
3136 op->o_ndn = be->be_rootndn;
3138 if ( SLAP_SYNC_SUBENTRY( be )) {
3139 build_new_dn( &si->si_contextdn, be->be_nsuffix,
3140 (struct berval *)&slap_ldapsync_cn_bv, NULL );
3142 si->si_contextdn = be->be_nsuffix[0];
3144 rc = overlay_entry_get_ov( op, &si->si_contextdn, NULL,
3145 slap_schema.si_ad_contextCSN, 0, &e, on );
3148 ldap_pvt_thread_t tid;
3150 a = attr_find( e->e_attrs, slap_schema.si_ad_contextCSN );
3152 ber_bvarray_dup_x( &si->si_ctxcsn, a->a_vals, NULL );
3153 si->si_numcsns = a->a_numvals;
3154 si->si_sids = slap_parse_csn_sids( si->si_ctxcsn, a->a_numvals, NULL );
3155 slap_sort_csn_sids( si->si_ctxcsn, si->si_sids, si->si_numcsns, NULL );
3157 overlay_entry_release_ov( op, e, 0, on );
3158 if ( si->si_ctxcsn && !SLAP_DBCLEAN( be )) {
3159 op->o_tag = LDAP_REQ_SEARCH;
3160 op->o_req_dn = be->be_suffix[0];
3161 op->o_req_ndn = be->be_nsuffix[0];
3162 op->ors_scope = LDAP_SCOPE_SUBTREE;
3163 ldap_pvt_thread_create( &tid, 0, syncprov_db_otask, op );
3164 ldap_pvt_thread_join( tid, NULL );
3168 /* Didn't find a contextCSN, should we generate one? */
3169 if ( !si->si_ctxcsn ) {
3170 char csnbuf[ LDAP_PVT_CSNSTR_BUFSIZE ];
3173 if ( slap_serverID || SLAP_SYNC_SHADOW( op->o_bd )) {
3174 /* If we're also a consumer, then don't generate anything.
3175 * Wait for our provider to send it to us, or for a local
3176 * modify if we have multimaster.
3180 csn.bv_val = csnbuf;
3181 csn.bv_len = sizeof( csnbuf );
3182 slap_get_csn( op, &csn, 0 );
3183 value_add_one( &si->si_ctxcsn, &csn );
3185 si->si_sids = ch_malloc( sizeof(int) );
3186 si->si_sids[0] = slap_serverID;
3188 /* make sure we do a checkpoint on close */
3192 /* Initialize the sessionlog mincsn */
3193 if ( si->si_logs && si->si_numcsns ) {
3194 sessionlog *sl = si->si_logs;
3196 ber_bvarray_dup_x( &sl->sl_mincsn, si->si_ctxcsn, NULL );
3197 sl->sl_numcsns = si->si_numcsns;
3198 sl->sl_sids = ch_malloc( si->si_numcsns * sizeof(int) );
3199 for ( i=0; i < si->si_numcsns; i++ )
3200 sl->sl_sids[i] = si->si_sids[i];
3204 op->o_bd->bd_info = (BackendInfo *)on;
3208 /* Write the current contextCSN into the underlying db.
3216 slap_overinst *on = (slap_overinst *) be->bd_info;
3217 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3218 #ifdef SLAP_CONFIG_DELETE
3219 syncops *so, *sonext;
3220 #endif /* SLAP_CONFIG_DELETE */
3222 if ( slapMode & SLAP_TOOL_MODE ) {
3225 if ( si->si_numops ) {
3226 Connection conn = {0};
3227 OperationBuffer opbuf;
3231 thrctx = ldap_pvt_thread_pool_context();
3232 connection_fake_init2( &conn, &opbuf, thrctx, 0 );
3235 op->o_dn = be->be_rootdn;
3236 op->o_ndn = be->be_rootndn;
3237 syncprov_checkpoint( op, on );
3240 #ifdef SLAP_CONFIG_DELETE
3241 if ( !slapd_shutdown ) {
3242 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
3243 for ( so=si->si_ops, sonext=so; so; so=sonext ) {
3244 SlapReply rs = {REP_RESULT};
3245 rs.sr_err = LDAP_UNAVAILABLE;
3246 send_ldap_result( so->s_op, &rs );
3248 syncprov_drop_psearch( so, 0);
3251 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
3253 overlay_unregister_control( be, LDAP_CONTROL_SYNC );
3254 #endif /* SLAP_CONFIG_DELETE */
3265 slap_overinst *on = (slap_overinst *)be->bd_info;
3266 syncprov_info_t *si;
3268 if ( SLAP_ISGLOBALOVERLAY( be ) ) {
3269 Debug( LDAP_DEBUG_ANY,
3270 "syncprov must be instantiated within a database.\n",
3275 si = ch_calloc(1, sizeof(syncprov_info_t));
3276 on->on_bi.bi_private = si;
3277 ldap_pvt_thread_rdwr_init( &si->si_csn_rwlock );
3278 ldap_pvt_thread_mutex_init( &si->si_ops_mutex );
3279 ldap_pvt_thread_mutex_init( &si->si_mods_mutex );
3280 ldap_pvt_thread_mutex_init( &si->si_resp_mutex );
3282 csn_anlist[0].an_desc = slap_schema.si_ad_entryCSN;
3283 csn_anlist[0].an_name = slap_schema.si_ad_entryCSN->ad_cname;
3284 csn_anlist[1].an_desc = slap_schema.si_ad_entryUUID;
3285 csn_anlist[1].an_name = slap_schema.si_ad_entryUUID->ad_cname;
3287 uuid_anlist[0].an_desc = slap_schema.si_ad_entryUUID;
3288 uuid_anlist[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
3294 syncprov_db_destroy(
3299 slap_overinst *on = (slap_overinst *)be->bd_info;
3300 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3303 if ( si->si_logs ) {
3304 sessionlog *sl = si->si_logs;
3305 slog_entry *se = sl->sl_head;
3308 slog_entry *se_next = se->se_next;
3312 if ( sl->sl_mincsn )
3313 ber_bvarray_free( sl->sl_mincsn );
3315 ch_free( sl->sl_sids );
3317 ldap_pvt_thread_mutex_destroy(&si->si_logs->sl_mutex);
3318 ch_free( si->si_logs );
3320 if ( si->si_ctxcsn )
3321 ber_bvarray_free( si->si_ctxcsn );
3323 ch_free( si->si_sids );
3324 ldap_pvt_thread_mutex_destroy( &si->si_resp_mutex );
3325 ldap_pvt_thread_mutex_destroy( &si->si_mods_mutex );
3326 ldap_pvt_thread_mutex_destroy( &si->si_ops_mutex );
3327 ldap_pvt_thread_rdwr_destroy( &si->si_csn_rwlock );
3334 static int syncprov_parseCtrl (
3340 BerElementBuffer berbuf;
3341 BerElement *ber = (BerElement *)&berbuf;
3344 struct berval cookie = BER_BVNULL;
3348 if ( op->o_sync != SLAP_CONTROL_NONE ) {
3349 rs->sr_text = "Sync control specified multiple times";
3350 return LDAP_PROTOCOL_ERROR;
3353 if ( op->o_pagedresults != SLAP_CONTROL_NONE ) {
3354 rs->sr_text = "Sync control specified with pagedResults control";
3355 return LDAP_PROTOCOL_ERROR;
3358 if ( BER_BVISNULL( &ctrl->ldctl_value ) ) {
3359 rs->sr_text = "Sync control value is absent";
3360 return LDAP_PROTOCOL_ERROR;
3363 if ( BER_BVISEMPTY( &ctrl->ldctl_value ) ) {
3364 rs->sr_text = "Sync control value is empty";
3365 return LDAP_PROTOCOL_ERROR;
3368 /* Parse the control value
3369 * syncRequestValue ::= SEQUENCE {
3374 * refreshAndPersist (3)
3376 * cookie syncCookie OPTIONAL
3380 ber_init2( ber, &ctrl->ldctl_value, 0 );
3382 if ( (tag = ber_scanf( ber, "{i" /*}*/, &mode )) == LBER_ERROR ) {
3383 rs->sr_text = "Sync control : mode decoding error";
3384 return LDAP_PROTOCOL_ERROR;
3388 case LDAP_SYNC_REFRESH_ONLY:
3389 mode = SLAP_SYNC_REFRESH;
3391 case LDAP_SYNC_REFRESH_AND_PERSIST:
3392 mode = SLAP_SYNC_REFRESH_AND_PERSIST;
3395 rs->sr_text = "Sync control : unknown update mode";
3396 return LDAP_PROTOCOL_ERROR;
3399 tag = ber_peek_tag( ber, &len );
3401 if ( tag == LDAP_TAG_SYNC_COOKIE ) {
3402 if (( ber_scanf( ber, /*{*/ "m", &cookie )) == LBER_ERROR ) {
3403 rs->sr_text = "Sync control : cookie decoding error";
3404 return LDAP_PROTOCOL_ERROR;
3406 tag = ber_peek_tag( ber, &len );
3408 if ( tag == LDAP_TAG_RELOAD_HINT ) {
3409 if (( ber_scanf( ber, /*{*/ "b", &rhint )) == LBER_ERROR ) {
3410 rs->sr_text = "Sync control : rhint decoding error";
3411 return LDAP_PROTOCOL_ERROR;
3414 if (( ber_scanf( ber, /*{*/ "}")) == LBER_ERROR ) {
3415 rs->sr_text = "Sync control : decoding error";
3416 return LDAP_PROTOCOL_ERROR;
3418 sr = op->o_tmpcalloc( 1, sizeof(struct sync_control), op->o_tmpmemctx );
3419 sr->sr_rhint = rhint;
3420 if (!BER_BVISNULL(&cookie)) {
3421 ber_dupbv_x( &sr->sr_state.octet_str, &cookie, op->o_tmpmemctx );
3422 /* If parse fails, pretend no cookie was sent */
3423 if ( slap_parse_sync_cookie( &sr->sr_state, op->o_tmpmemctx ) ||
3424 sr->sr_state.rid == -1 ) {
3425 if ( sr->sr_state.ctxcsn ) {
3426 ber_bvarray_free_x( sr->sr_state.ctxcsn, op->o_tmpmemctx );
3427 sr->sr_state.ctxcsn = NULL;
3429 sr->sr_state.numcsns = 0;
3433 op->o_controls[slap_cids.sc_LDAPsync] = sr;
3435 op->o_sync = ctrl->ldctl_iscritical
3436 ? SLAP_CONTROL_CRITICAL
3437 : SLAP_CONTROL_NONCRITICAL;
3439 op->o_sync_mode |= mode; /* o_sync_mode shares o_sync */
3441 return LDAP_SUCCESS;
3444 /* This overlay is set up for dynamic loading via moduleload. For static
3445 * configuration, you'll need to arrange for the slap_overinst to be
3446 * initialized and registered by some other function inside slapd.
3449 static slap_overinst syncprov;
3452 syncprov_initialize()
3456 rc = register_supported_control( LDAP_CONTROL_SYNC,
3457 SLAP_CTRL_SEARCH, NULL,
3458 syncprov_parseCtrl, &slap_cids.sc_LDAPsync );
3459 if ( rc != LDAP_SUCCESS ) {
3460 Debug( LDAP_DEBUG_ANY,
3461 "syncprov_init: Failed to register control %d\n", rc, 0, 0 );
3465 syncprov.on_bi.bi_type = "syncprov";
3466 syncprov.on_bi.bi_db_init = syncprov_db_init;
3467 syncprov.on_bi.bi_db_destroy = syncprov_db_destroy;
3468 syncprov.on_bi.bi_db_open = syncprov_db_open;
3469 syncprov.on_bi.bi_db_close = syncprov_db_close;
3471 syncprov.on_bi.bi_op_abandon = syncprov_op_abandon;
3472 syncprov.on_bi.bi_op_cancel = syncprov_op_abandon;
3474 syncprov.on_bi.bi_op_add = syncprov_op_mod;
3475 syncprov.on_bi.bi_op_compare = syncprov_op_compare;
3476 syncprov.on_bi.bi_op_delete = syncprov_op_mod;
3477 syncprov.on_bi.bi_op_modify = syncprov_op_mod;
3478 syncprov.on_bi.bi_op_modrdn = syncprov_op_mod;
3479 syncprov.on_bi.bi_op_search = syncprov_op_search;
3480 syncprov.on_bi.bi_extended = syncprov_op_extended;
3481 syncprov.on_bi.bi_operational = syncprov_operational;
3483 syncprov.on_bi.bi_cf_ocs = spocs;
3485 generic_filter.f_desc = slap_schema.si_ad_objectClass;
3487 rc = config_register_schema( spcfg, spocs );
3488 if ( rc ) return rc;
3490 return overlay_register( &syncprov );
3493 #if SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC
3495 init_module( int argc, char *argv[] )
3497 return syncprov_initialize();
3499 #endif /* SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC */
3501 #endif /* defined(SLAPD_OVER_SYNCPROV) */