2 /* syncprov.c - syncrepl provider */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2004-2010 The OpenLDAP Foundation.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted only as authorized by the OpenLDAP
12 * A copy of this license is available in the file LICENSE in the
13 * top-level directory of the distribution or, alternatively, at
14 * <http://www.OpenLDAP.org/license.html>.
17 * This work was initially developed by Howard Chu for inclusion in
23 #ifdef SLAPD_OVER_SYNCPROV
25 #include <ac/string.h>
35 /* A modify request on a particular entry */
36 typedef struct modinst {
37 struct modinst *mi_next;
41 typedef struct modtarget {
42 struct modinst *mt_mods;
43 struct modinst *mt_tail;
45 ldap_pvt_thread_mutex_t mt_mutex;
48 /* A queued result of a persistent search */
49 typedef struct syncres {
50 struct syncres *s_next;
60 /* Record of a persistent search */
61 typedef struct syncops {
62 struct syncops *s_next;
63 struct berval s_base; /* ndn of search base */
64 ID s_eid; /* entryID of search base */
65 Operation *s_op; /* search op */
68 struct berval s_filterstr;
69 int s_flags; /* search status */
70 #define PS_IS_REFRESHING 0x01
71 #define PS_IS_DETACHED 0x02
72 #define PS_WROTE_BASE 0x04
73 #define PS_FIND_BASE 0x08
74 #define PS_FIX_FILTER 0x10
75 #define PS_TASK_QUEUED 0x20
77 int s_inuse; /* reference count */
78 struct syncres *s_res;
79 struct syncres *s_restail;
80 ldap_pvt_thread_mutex_t s_mutex;
83 /* A received sync control */
84 typedef struct sync_control {
85 struct sync_cookie sr_state;
89 #if 0 /* moved back to slap.h */
90 #define o_sync o_ctrlflag[slap_cids.sc_LDAPsync]
92 /* o_sync_mode uses data bits of o_sync */
93 #define o_sync_mode o_ctrlflag[slap_cids.sc_LDAPsync]
95 #define SLAP_SYNC_NONE (LDAP_SYNC_NONE<<SLAP_CONTROL_SHIFT)
96 #define SLAP_SYNC_REFRESH (LDAP_SYNC_REFRESH_ONLY<<SLAP_CONTROL_SHIFT)
97 #define SLAP_SYNC_PERSIST (LDAP_SYNC_RESERVED<<SLAP_CONTROL_SHIFT)
98 #define SLAP_SYNC_REFRESH_AND_PERSIST (LDAP_SYNC_REFRESH_AND_PERSIST<<SLAP_CONTROL_SHIFT)
100 /* Record of which searches matched at premodify step */
101 typedef struct syncmatches {
102 struct syncmatches *sm_next;
106 /* Session log data */
107 typedef struct slog_entry {
108 struct slog_entry *se_next;
109 struct berval se_uuid;
110 struct berval se_csn;
115 typedef struct sessionlog {
120 ldap_pvt_thread_mutex_t sl_mutex;
123 /* The main state for this overlay */
124 typedef struct syncprov_info_t {
126 BerVarray si_ctxcsn; /* ldapsync context */
127 struct berval si_contextdn;
130 int si_chkops; /* checkpointing info */
132 int si_numops; /* number of ops since last checkpoint */
133 int si_nopres; /* Skip present phase */
134 int si_usehint; /* use reload hint */
135 int si_active; /* True if there are active mods */
136 int si_dirty; /* True if the context is dirty, i.e changes
137 * have been made without updating the csn. */
138 time_t si_chklast; /* time of last checkpoint */
139 Avlnode *si_mods; /* entries being modified */
141 ldap_pvt_thread_rdwr_t si_csn_rwlock;
142 ldap_pvt_thread_mutex_t si_ops_mutex;
143 ldap_pvt_thread_mutex_t si_mods_mutex;
144 ldap_pvt_thread_mutex_t si_resp_mutex;
147 typedef struct opcookie {
149 syncmatches *smatches;
152 struct berval sdn; /* DN of entry, for deletes */
154 struct berval suuid; /* UUID of entry */
155 struct berval sctxcsn;
156 short osid; /* sid of op csn */
157 short rsid; /* sid of relay */
158 short sreference; /* Is the entry a reference? */
161 typedef struct mutexint {
162 ldap_pvt_thread_mutex_t mi_mutex;
166 typedef struct fbase_cookie {
167 struct berval *fdn; /* DN of a modified entry, for scope testing */
168 syncops *fss; /* persistent search we're testing against */
169 int fbase; /* if TRUE we found the search base and it's still valid */
170 int fscope; /* if TRUE then fdn is within the psearch scope */
173 static AttributeName csn_anlist[3];
174 static AttributeName uuid_anlist[2];
176 /* Build a LDAPsync intermediate state control */
182 int entry_sync_state,
186 struct berval *cookie )
191 BerElementBuffer berbuf;
192 BerElement *ber = (BerElement *)&berbuf;
194 struct berval entryuuid_bv = BER_BVNULL;
196 ber_init2( ber, 0, LBER_USE_DER );
197 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
199 ctrls[num_ctrls] = op->o_tmpalloc( sizeof ( LDAPControl ), op->o_tmpmemctx );
201 for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
202 AttributeDescription *desc = a->a_desc;
203 if ( desc == slap_schema.si_ad_entryUUID ) {
204 entryuuid_bv = a->a_nvals[0];
209 /* FIXME: what if entryuuid is NULL or empty ? */
211 if ( send_cookie && cookie ) {
212 ber_printf( ber, "{eOON}",
213 entry_sync_state, &entryuuid_bv, cookie );
215 ber_printf( ber, "{eON}",
216 entry_sync_state, &entryuuid_bv );
219 ctrls[num_ctrls]->ldctl_oid = LDAP_CONTROL_SYNC_STATE;
220 ctrls[num_ctrls]->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
221 ret = ber_flatten2( ber, &ctrls[num_ctrls]->ldctl_value, 1 );
226 Debug( LDAP_DEBUG_TRACE,
227 "slap_build_sync_ctrl: ber_flatten2 failed\n",
229 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
236 /* Build a LDAPsync final state control */
244 struct berval *cookie,
248 BerElementBuffer berbuf;
249 BerElement *ber = (BerElement *)&berbuf;
251 ber_init2( ber, NULL, LBER_USE_DER );
252 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
254 ctrls[num_ctrls] = op->o_tmpalloc( sizeof ( LDAPControl ), op->o_tmpmemctx );
256 ber_printf( ber, "{" );
257 if ( send_cookie && cookie ) {
258 ber_printf( ber, "O", cookie );
260 if ( refreshDeletes == LDAP_SYNC_REFRESH_DELETES ) {
261 ber_printf( ber, "b", refreshDeletes );
263 ber_printf( ber, "N}" );
265 ctrls[num_ctrls]->ldctl_oid = LDAP_CONTROL_SYNC_DONE;
266 ctrls[num_ctrls]->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
267 ret = ber_flatten2( ber, &ctrls[num_ctrls]->ldctl_value, 1 );
272 Debug( LDAP_DEBUG_TRACE,
273 "syncprov_done_ctrl: ber_flatten2 failed\n",
275 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
287 struct berval *cookie,
292 BerElementBuffer berbuf;
293 BerElement *ber = (BerElement *)&berbuf;
294 struct berval rspdata;
298 ber_init2( ber, NULL, LBER_USE_DER );
299 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
303 case LDAP_TAG_SYNC_NEW_COOKIE:
304 ber_printf( ber, "tO", type, cookie );
306 case LDAP_TAG_SYNC_REFRESH_DELETE:
307 case LDAP_TAG_SYNC_REFRESH_PRESENT:
308 ber_printf( ber, "t{", type );
310 ber_printf( ber, "O", cookie );
312 if ( refreshDone == 0 ) {
313 ber_printf( ber, "b", refreshDone );
315 ber_printf( ber, "N}" );
317 case LDAP_TAG_SYNC_ID_SET:
318 ber_printf( ber, "t{", type );
320 ber_printf( ber, "O", cookie );
322 if ( refreshDeletes == 1 ) {
323 ber_printf( ber, "b", refreshDeletes );
325 ber_printf( ber, "[W]", syncUUIDs );
326 ber_printf( ber, "N}" );
329 Debug( LDAP_DEBUG_TRACE,
330 "syncprov_sendinfo: invalid syncinfo type (%d)\n",
336 ret = ber_flatten2( ber, &rspdata, 0 );
339 Debug( LDAP_DEBUG_TRACE,
340 "syncprov_sendinfo: ber_flatten2 failed\n",
342 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
346 rs->sr_rspoid = LDAP_SYNC_INFO;
347 rs->sr_rspdata = &rspdata;
348 send_ldap_intermediate( op, rs );
349 rs->sr_rspdata = NULL;
355 /* Find a modtarget in an AVL tree */
357 sp_avl_cmp( const void *c1, const void *c2 )
359 const modtarget *m1, *m2;
363 rc = m1->mt_op->o_req_ndn.bv_len - m2->mt_op->o_req_ndn.bv_len;
366 return ber_bvcmp( &m1->mt_op->o_req_ndn, &m2->mt_op->o_req_ndn );
369 /* syncprov_findbase:
370 * finds the true DN of the base of a search (with alias dereferencing) and
371 * checks to make sure the base entry doesn't get replaced with a different
372 * entry (e.g., swapping trees via ModDN, or retargeting an alias). If a
373 * change is detected, any persistent search on this base must be terminated /
375 * On the first call, we just save the DN and entryID. On subsequent calls
376 * we compare the DN and entryID with the saved values.
379 findbase_cb( Operation *op, SlapReply *rs )
381 slap_callback *sc = op->o_callback;
383 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
384 fbase_cookie *fc = sc->sc_private;
386 /* If no entryID, we're looking for the first time.
387 * Just store whatever we got.
389 if ( fc->fss->s_eid == NOID ) {
391 fc->fss->s_eid = rs->sr_entry->e_id;
392 ber_dupbv( &fc->fss->s_base, &rs->sr_entry->e_nname );
394 } else if ( rs->sr_entry->e_id == fc->fss->s_eid &&
395 dn_match( &rs->sr_entry->e_nname, &fc->fss->s_base )) {
397 /* OK, the DN is the same and the entryID is the same. */
401 if ( rs->sr_err != LDAP_SUCCESS ) {
402 Debug( LDAP_DEBUG_ANY, "findbase failed! %d\n", rs->sr_err,0,0 );
407 static Filter generic_filter = { LDAP_FILTER_PRESENT, { 0 }, NULL };
408 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
411 syncprov_findbase( Operation *op, fbase_cookie *fc )
413 /* Use basic parameters from syncrepl search, but use
414 * current op's threadctx / tmpmemctx
416 ldap_pvt_thread_mutex_lock( &fc->fss->s_mutex );
417 if ( fc->fss->s_flags & PS_FIND_BASE ) {
418 slap_callback cb = {0};
420 SlapReply frs = { REP_RESULT };
423 fc->fss->s_flags ^= PS_FIND_BASE;
424 ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
426 fop = *fc->fss->s_op;
428 fop.o_bd = fop.o_bd->bd_self;
429 fop.o_hdr = op->o_hdr;
430 fop.o_time = op->o_time;
431 fop.o_tincr = op->o_tincr;
433 cb.sc_response = findbase_cb;
436 fop.o_sync_mode = 0; /* turn off sync mode */
437 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
438 fop.o_callback = &cb;
439 fop.o_tag = LDAP_REQ_SEARCH;
440 fop.ors_scope = LDAP_SCOPE_BASE;
441 fop.ors_limit = NULL;
443 fop.ors_tlimit = SLAP_NO_LIMIT;
444 fop.ors_attrs = slap_anlist_no_attrs;
445 fop.ors_attrsonly = 1;
446 fop.ors_filter = &generic_filter;
447 fop.ors_filterstr = generic_filterstr;
449 rc = fop.o_bd->be_search( &fop, &frs );
451 ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
455 /* After the first call, see if the fdn resides in the scope */
456 if ( fc->fbase == 1 ) {
457 switch ( fc->fss->s_op->ors_scope ) {
458 case LDAP_SCOPE_BASE:
459 fc->fscope = dn_match( fc->fdn, &fc->fss->s_base );
461 case LDAP_SCOPE_ONELEVEL: {
463 dnParent( fc->fdn, &pdn );
464 fc->fscope = dn_match( &pdn, &fc->fss->s_base );
466 case LDAP_SCOPE_SUBTREE:
467 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base );
469 case LDAP_SCOPE_SUBORDINATE:
470 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base ) &&
471 !dn_match( fc->fdn, &fc->fss->s_base );
479 /* If entryID has changed, then the base of this search has
480 * changed. Invalidate the psearch.
482 return LDAP_NO_SUCH_OBJECT;
486 * This function has three different purposes, but they all use a search
487 * that filters on entryCSN so they're combined here.
488 * 1: at startup time, after a contextCSN has been read from the database,
489 * we search for all entries with CSN >= contextCSN in case the contextCSN
490 * was not checkpointed at the previous shutdown.
492 * 2: when the current contextCSN is known and we have a sync cookie, we search
493 * for one entry with CSN = the cookie CSN. If not found, try <= cookie CSN.
494 * If an entry is found, the cookie CSN is valid, otherwise it is stale.
496 * 3: during a refresh phase, we search for all entries with CSN <= the cookie
497 * CSN, and generate Present records for them. We always collect this result
498 * in SyncID sets, even if there's only one match.
500 typedef enum find_csn_t {
507 findmax_cb( Operation *op, SlapReply *rs )
509 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
510 struct berval *maxcsn = op->o_callback->sc_private;
511 Attribute *a = attr_find( rs->sr_entry->e_attrs,
512 slap_schema.si_ad_entryCSN );
514 if ( a && ber_bvcmp( &a->a_vals[0], maxcsn ) > 0 &&
515 slap_parse_csn_sid( &a->a_vals[0] ) == slap_serverID ) {
516 maxcsn->bv_len = a->a_vals[0].bv_len;
517 strcpy( maxcsn->bv_val, a->a_vals[0].bv_val );
524 findcsn_cb( Operation *op, SlapReply *rs )
526 slap_callback *sc = op->o_callback;
528 /* We just want to know that at least one exists, so it's OK if
529 * we exceed the unchecked limit.
531 if ( rs->sr_err == LDAP_ADMINLIMIT_EXCEEDED ||
532 (rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS )) {
533 sc->sc_private = (void *)1;
538 /* Build a list of entryUUIDs for sending in a SyncID set */
542 typedef struct fpres_cookie {
549 findpres_cb( Operation *op, SlapReply *rs )
551 slap_callback *sc = op->o_callback;
552 fpres_cookie *pc = sc->sc_private;
554 int ret = SLAP_CB_CONTINUE;
556 switch ( rs->sr_type ) {
558 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
560 pc->uuids[pc->num].bv_val = pc->last;
561 AC_MEMCPY( pc->uuids[pc->num].bv_val, a->a_nvals[0].bv_val,
562 pc->uuids[pc->num].bv_len );
564 pc->last = pc->uuids[pc->num].bv_val;
565 pc->uuids[pc->num].bv_val = NULL;
568 if ( pc->num != SLAP_SYNCUUID_SET_SIZE )
574 ret = syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET, NULL,
576 pc->uuids[pc->num].bv_val = pc->last;
578 pc->last = pc->uuids[0].bv_val;
588 syncprov_findcsn( Operation *op, find_csn_t mode )
590 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
591 syncprov_info_t *si = on->on_bi.bi_private;
593 slap_callback cb = {0};
595 SlapReply frs = { REP_RESULT };
596 char buf[LDAP_PVT_CSNSTR_BUFSIZE + STRLENOF("(entryCSN<=)")];
597 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
598 struct berval maxcsn;
600 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
601 fpres_cookie pcookie;
602 sync_control *srs = NULL;
603 struct slap_limits_set fc_limits;
604 int i, rc = LDAP_SUCCESS, findcsn_retry = 1;
607 if ( mode != FIND_MAXCSN ) {
608 srs = op->o_controls[slap_cids.sc_LDAPsync];
612 fop.o_sync_mode &= SLAP_CONTROL_MASK; /* turn off sync_mode */
613 /* We want pure entries, not referrals */
614 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
617 cf.f_av_desc = slap_schema.si_ad_entryCSN;
618 BER_BVZERO( &cf.f_av_value );
621 fop.o_callback = &cb;
622 fop.ors_limit = NULL;
623 fop.ors_tlimit = SLAP_NO_LIMIT;
624 fop.ors_filter = &cf;
625 fop.ors_filterstr.bv_val = buf;
630 cf.f_choice = LDAP_FILTER_GE;
631 /* If there are multiple CSNs, use the one with our serverID */
632 for ( i=0; i<si->si_numcsns; i++) {
633 if ( slap_serverID == si->si_sids[i] ) {
638 if ( i == si->si_numcsns ) {
639 /* No match: this is multimaster, and none of the content in the DB
640 * originated locally. Treat like no CSN.
642 return LDAP_NO_SUCH_OBJECT;
644 cf.f_av_value = si->si_ctxcsn[maxid];
645 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
646 "(entryCSN>=%s)", cf.f_av_value.bv_val );
647 if ( fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
650 fop.ors_attrsonly = 0;
651 fop.ors_attrs = csn_anlist;
652 fop.ors_slimit = SLAP_NO_LIMIT;
653 cb.sc_private = &maxcsn;
654 cb.sc_response = findmax_cb;
655 strcpy( cbuf, cf.f_av_value.bv_val );
656 maxcsn.bv_val = cbuf;
657 maxcsn.bv_len = cf.f_av_value.bv_len;
660 if ( BER_BVISEMPTY( &cf.f_av_value )) {
661 cf.f_av_value = srs->sr_state.ctxcsn[0];
662 /* If there are multiple CSNs, use the smallest */
663 for ( i=1; i<srs->sr_state.numcsns; i++ ) {
664 if ( ber_bvcmp( &cf.f_av_value, &srs->sr_state.ctxcsn[i] )
666 cf.f_av_value = srs->sr_state.ctxcsn[i];
670 /* Look for exact match the first time */
671 if ( findcsn_retry ) {
672 cf.f_choice = LDAP_FILTER_EQUALITY;
673 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
674 "(entryCSN=%s)", cf.f_av_value.bv_val );
675 /* On retry, look for <= */
677 cf.f_choice = LDAP_FILTER_LE;
678 fop.ors_limit = &fc_limits;
679 memset( &fc_limits, 0, sizeof( fc_limits ));
680 fc_limits.lms_s_unchecked = 1;
681 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
682 "(entryCSN<=%s)", cf.f_av_value.bv_val );
684 if ( fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
687 fop.ors_attrsonly = 1;
688 fop.ors_attrs = slap_anlist_no_attrs;
690 cb.sc_private = NULL;
691 cb.sc_response = findcsn_cb;
694 fop.ors_filter = op->ors_filter;
695 fop.ors_filterstr = op->ors_filterstr;
696 fop.ors_attrsonly = 0;
697 fop.ors_attrs = uuid_anlist;
698 fop.ors_slimit = SLAP_NO_LIMIT;
699 cb.sc_private = &pcookie;
700 cb.sc_response = findpres_cb;
703 /* preallocate storage for a full set */
704 pcookie.uuids = op->o_tmpalloc( (SLAP_SYNCUUID_SET_SIZE+1) *
705 sizeof(struct berval) + SLAP_SYNCUUID_SET_SIZE * UUID_LEN,
707 pcookie.last = (char *)(pcookie.uuids + SLAP_SYNCUUID_SET_SIZE+1);
708 pcookie.uuids[0].bv_val = pcookie.last;
709 pcookie.uuids[0].bv_len = UUID_LEN;
710 for (i=1; i<SLAP_SYNCUUID_SET_SIZE; i++) {
711 pcookie.uuids[i].bv_val = pcookie.uuids[i-1].bv_val + UUID_LEN;
712 pcookie.uuids[i].bv_len = UUID_LEN;
717 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
718 fop.o_bd->be_search( &fop, &frs );
719 fop.o_bd->bd_info = (BackendInfo *)on;
723 if ( ber_bvcmp( &si->si_ctxcsn[maxid], &maxcsn )) {
725 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
726 assert( !syn->ssyn_validate( syn, &maxcsn ));
728 ber_bvreplace( &si->si_ctxcsn[maxid], &maxcsn );
729 si->si_numops++; /* ensure a checkpoint */
733 /* If matching CSN was not found, invalidate the context. */
734 if ( !cb.sc_private ) {
735 /* If we didn't find an exact match, then try for <= */
736 if ( findcsn_retry ) {
740 rc = LDAP_NO_SUCH_OBJECT;
744 op->o_tmpfree( pcookie.uuids, op->o_tmpmemctx );
751 /* Should find a place to cache these */
752 static mutexint *get_mutexint()
754 mutexint *mi = ch_malloc( sizeof( mutexint ));
755 ldap_pvt_thread_mutex_init( &mi->mi_mutex );
760 static void inc_mutexint( mutexint *mi )
762 ldap_pvt_thread_mutex_lock( &mi->mi_mutex );
764 ldap_pvt_thread_mutex_unlock( &mi->mi_mutex );
767 /* return resulting counter */
768 static int dec_mutexint( mutexint *mi )
771 ldap_pvt_thread_mutex_lock( &mi->mi_mutex );
773 ldap_pvt_thread_mutex_unlock( &mi->mi_mutex );
775 ldap_pvt_thread_mutex_destroy( &mi->mi_mutex );
782 syncprov_free_syncop( syncops *so )
784 syncres *sr, *srnext;
785 GroupAssertion *ga, *gnext;
787 ldap_pvt_thread_mutex_lock( &so->s_mutex );
788 /* already being freed, or still in use */
789 if ( !so->s_inuse || --so->s_inuse > 0 ) {
790 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
793 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
794 if ( so->s_flags & PS_IS_DETACHED ) {
795 filter_free( so->s_op->ors_filter );
796 for ( ga = so->s_op->o_groups; ga; ga=gnext ) {
802 ch_free( so->s_base.bv_val );
803 for ( sr=so->s_res; sr; sr=srnext ) {
806 if ( !dec_mutexint( sr->s_e->e_private )) {
807 sr->s_e->e_private = NULL;
808 entry_free( sr->s_e );
813 ldap_pvt_thread_mutex_destroy( &so->s_mutex );
817 /* Send a persistent search response */
819 syncprov_sendresp( Operation *op, opcookie *opc, syncops *so, int mode )
821 SlapReply rs = { REP_SEARCH };
822 LDAPControl *ctrls[2];
823 struct berval cookie = BER_BVNULL, csns[2];
825 Attribute a_uuid = {0};
827 if ( so->s_op->o_abandon )
828 return SLAPD_ABANDON;
831 if ( !BER_BVISNULL( &opc->sctxcsn )) {
832 csns[0] = opc->sctxcsn;
833 BER_BVZERO( &csns[1] );
834 slap_compose_sync_cookie( op, &cookie, csns, so->s_rid, slap_serverID ? slap_serverID : -1 );
838 if ( so->s_sid > 0 ) {
839 Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: to=%03x, cookie=%s\n",
840 so->s_sid, cookie.bv_val ? cookie.bv_val : "", 0 );
842 Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: cookie=%s\n",
843 cookie.bv_val ? cookie.bv_val : "", 0, 0 );
847 e_uuid.e_attrs = &a_uuid;
848 a_uuid.a_desc = slap_schema.si_ad_entryUUID;
849 a_uuid.a_nvals = &opc->suuid;
850 rs.sr_err = syncprov_state_ctrl( op, &rs, &e_uuid,
851 mode, ctrls, 0, 1, &cookie );
852 if ( !BER_BVISNULL( &cookie )) {
853 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
857 rs.sr_entry = &e_uuid;
858 if ( mode == LDAP_SYNC_ADD || mode == LDAP_SYNC_MODIFY ) {
860 e_uuid.e_private = NULL;
865 if ( opc->sreference && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
866 rs.sr_ref = get_entry_referrals( op, rs.sr_entry );
867 rs.sr_err = send_search_reference( op, &rs );
868 ber_bvarray_free( rs.sr_ref );
872 case LDAP_SYNC_MODIFY:
873 rs.sr_attrs = op->ors_attrs;
874 rs.sr_err = send_search_entry( op, &rs );
876 case LDAP_SYNC_DELETE:
877 e_uuid.e_attrs = NULL;
878 e_uuid.e_name = opc->sdn;
879 e_uuid.e_nname = opc->sndn;
880 if ( opc->sreference && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
881 struct berval bv = BER_BVNULL;
883 rs.sr_err = send_search_reference( op, &rs );
885 rs.sr_err = send_search_entry( op, &rs );
891 /* In case someone else freed it already? */
894 for ( i=0; rs.sr_ctrls[i]; i++ ) {
895 if ( rs.sr_ctrls[i] == ctrls[0] ) {
896 op->o_tmpfree( ctrls[0]->ldctl_value.bv_val, op->o_tmpmemctx );
897 ctrls[0]->ldctl_value.bv_val = NULL;
908 syncprov_qstart( syncops *so );
910 /* Play back queued responses */
912 syncprov_qplay( Operation *op, syncops *so )
914 slap_overinst *on = LDAP_SLIST_FIRST(&so->s_op->o_extra)->oe_key;
922 ldap_pvt_thread_mutex_lock( &so->s_mutex );
925 so->s_res = sr->s_next;
927 so->s_restail = NULL;
928 /* Exit loop with mutex held */
929 if ( !sr || so->s_op->o_abandon )
931 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
933 if ( sr->s_mode == LDAP_SYNC_NEW_COOKIE ) {
934 SlapReply rs = { REP_INTERMEDIATE };
936 rc = syncprov_sendinfo( op, &rs, LDAP_TAG_SYNC_NEW_COOKIE,
937 &sr->s_csn, 0, NULL, 0 );
940 opc.sndn = sr->s_ndn;
941 opc.suuid = sr->s_uuid;
942 opc.sctxcsn = sr->s_csn;
943 opc.sreference = sr->s_isreference;
946 rc = syncprov_sendresp( op, &opc, so, sr->s_mode );
950 if ( !dec_mutexint( sr->s_e->e_private )) {
951 sr->s_e->e_private = NULL;
952 entry_free ( sr->s_e );
958 /* Exit loop with mutex held */
959 ldap_pvt_thread_mutex_lock( &so->s_mutex );
963 /* We now only send one change at a time, to prevent one
964 * psearch from hogging all the CPU. Resubmit this task if
965 * there are more responses queued and no errors occurred.
968 if ( rc == 0 && so->s_res ) {
969 syncprov_qstart( so );
971 so->s_flags ^= PS_TASK_QUEUED;
974 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
978 /* task for playing back queued responses */
980 syncprov_qtask( void *ctx, void *arg )
983 OperationBuffer opbuf;
990 op->o_hdr = &opbuf.ob_hdr;
991 op->o_controls = opbuf.ob_controls;
992 memset( op->o_controls, 0, sizeof(opbuf.ob_controls) );
994 *op->o_hdr = *so->s_op->o_hdr;
996 op->o_tmpmemctx = slap_sl_mem_create(SLAP_SLAB_SIZE, SLAP_SLAB_STACK, ctx, 1);
997 op->o_tmpmfuncs = &slap_sl_mfuncs;
998 op->o_threadctx = ctx;
1000 /* syncprov_qplay expects a fake db */
1001 be = *so->s_op->o_bd;
1002 be.be_flags |= SLAP_DBFLAG_OVERLAY;
1004 LDAP_SLIST_FIRST(&op->o_extra) = NULL;
1005 op->o_callback = NULL;
1007 rc = syncprov_qplay( op, so );
1009 /* decrement use count... */
1010 syncprov_free_syncop( so );
1015 /* Start the task to play back queued psearch responses */
1017 syncprov_qstart( syncops *so )
1019 so->s_flags |= PS_TASK_QUEUED;
1021 ldap_pvt_thread_pool_submit( &connection_pool,
1022 syncprov_qtask, so );
1025 /* Queue a persistent search response */
1027 syncprov_qresp( opcookie *opc, syncops *so, int mode )
1031 struct berval cookie = opc->sctxcsn;
1033 if ( mode == LDAP_SYNC_NEW_COOKIE ) {
1034 syncprov_info_t *si = opc->son->on_bi.bi_private;
1036 slap_compose_sync_cookie( NULL, &cookie, si->si_ctxcsn,
1037 so->s_rid, slap_serverID ? slap_serverID : -1);
1040 srsize = sizeof(syncres) + opc->suuid.bv_len + 1 +
1041 opc->sdn.bv_len + 1 + opc->sndn.bv_len + 1;
1042 if ( cookie.bv_len )
1043 srsize += cookie.bv_len + 1;
1044 sr = ch_malloc( srsize );
1047 /* bump refcount on this entry */
1049 inc_mutexint( opc->se->e_private );
1050 sr->s_dn.bv_val = (char *)(sr + 1);
1051 sr->s_dn.bv_len = opc->sdn.bv_len;
1053 sr->s_isreference = opc->sreference;
1054 sr->s_ndn.bv_val = lutil_strcopy( sr->s_dn.bv_val,
1055 opc->sdn.bv_val ) + 1;
1056 sr->s_ndn.bv_len = opc->sndn.bv_len;
1057 sr->s_uuid.bv_val = lutil_strcopy( sr->s_ndn.bv_val,
1058 opc->sndn.bv_val ) + 1;
1059 sr->s_uuid.bv_len = opc->suuid.bv_len;
1060 AC_MEMCPY( sr->s_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1061 if ( cookie.bv_len ) {
1062 sr->s_csn.bv_val = sr->s_uuid.bv_val + sr->s_uuid.bv_len + 1;
1063 strcpy( sr->s_csn.bv_val, cookie.bv_val );
1065 sr->s_csn.bv_val = NULL;
1067 sr->s_csn.bv_len = cookie.bv_len;
1069 if ( mode == LDAP_SYNC_NEW_COOKIE && cookie.bv_val ) {
1070 ch_free( cookie.bv_val );
1073 ldap_pvt_thread_mutex_lock( &so->s_mutex );
1077 so->s_restail->s_next = sr;
1081 /* If the base of the psearch was modified, check it next time round */
1082 if ( so->s_flags & PS_WROTE_BASE ) {
1083 so->s_flags ^= PS_WROTE_BASE;
1084 so->s_flags |= PS_FIND_BASE;
1086 if (( so->s_flags & (PS_IS_DETACHED|PS_TASK_QUEUED)) == PS_IS_DETACHED ) {
1087 syncprov_qstart( so );
1089 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
1090 return LDAP_SUCCESS;
1094 syncprov_drop_psearch( syncops *so, int lock )
1096 if ( so->s_flags & PS_IS_DETACHED ) {
1098 ldap_pvt_thread_mutex_lock( &so->s_op->o_conn->c_mutex );
1099 so->s_op->o_conn->c_n_ops_executing--;
1100 so->s_op->o_conn->c_n_ops_completed++;
1101 LDAP_STAILQ_REMOVE( &so->s_op->o_conn->c_ops, so->s_op, Operation,
1104 ldap_pvt_thread_mutex_unlock( &so->s_op->o_conn->c_mutex );
1106 syncprov_free_syncop( so );
1112 syncprov_ab_cleanup( Operation *op, SlapReply *rs )
1114 slap_callback *sc = op->o_callback;
1115 op->o_callback = sc->sc_next;
1116 syncprov_drop_psearch( op->o_callback->sc_private, 0 );
1117 op->o_tmpfree( sc, op->o_tmpmemctx );
1122 syncprov_op_abandon( Operation *op, SlapReply *rs )
1124 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1125 syncprov_info_t *si = on->on_bi.bi_private;
1126 syncops *so, *soprev;
1128 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1129 for ( so=si->si_ops, soprev = (syncops *)&si->si_ops; so;
1130 soprev=so, so=so->s_next ) {
1131 if ( so->s_op->o_connid == op->o_connid &&
1132 so->s_op->o_msgid == op->orn_msgid ) {
1133 so->s_op->o_abandon = 1;
1134 soprev->s_next = so->s_next;
1138 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1140 /* Is this really a Cancel exop? */
1141 if ( op->o_tag != LDAP_REQ_ABANDON ) {
1142 so->s_op->o_cancel = SLAP_CANCEL_ACK;
1143 rs->sr_err = LDAP_CANCELLED;
1144 send_ldap_result( so->s_op, rs );
1145 if ( so->s_flags & PS_IS_DETACHED ) {
1147 cb = op->o_tmpcalloc( 1, sizeof(slap_callback), op->o_tmpmemctx );
1148 cb->sc_cleanup = syncprov_ab_cleanup;
1149 cb->sc_next = op->o_callback;
1150 cb->sc_private = so;
1151 return SLAP_CB_CONTINUE;
1154 syncprov_drop_psearch( so, 0 );
1156 return SLAP_CB_CONTINUE;
1159 /* Find which persistent searches are affected by this operation */
1161 syncprov_matchops( Operation *op, opcookie *opc, int saveit )
1163 slap_overinst *on = opc->son;
1164 syncprov_info_t *si = on->on_bi.bi_private;
1167 syncops *ss, *sprev, *snext;
1171 struct berval newdn;
1173 BackendDB *b0 = op->o_bd, db;
1175 fc.fdn = &op->o_req_ndn;
1176 /* compute new DN */
1177 if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1179 if ( op->orr_nnewSup ) pdn = *op->orr_nnewSup;
1180 else dnParent( fc.fdn, &pdn );
1181 build_new_dn( &newdn, &pdn, &op->orr_nnewrdn, op->o_tmpmemctx );
1185 if ( op->o_tag != LDAP_REQ_ADD ) {
1186 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1190 rc = overlay_entry_get_ov( op, fc.fdn, NULL, NULL, 0, &e, on );
1191 /* If we're sending responses now, make a copy and unlock the DB */
1192 if ( e && !saveit ) {
1194 opc->se = entry_dup( e );
1195 opc->se->e_private = get_mutexint();
1197 overlay_entry_release_ov( op, e, 0, on );
1208 opc->se = entry_dup( e );
1209 opc->se->e_private = get_mutexint();
1215 if ( saveit || op->o_tag == LDAP_REQ_ADD ) {
1216 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1217 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1218 opc->sreference = is_entry_referral( e );
1219 a = attr_find( e->e_attrs, slap_schema.si_ad_entryUUID );
1221 ber_dupbv_x( &opc->suuid, &a->a_nvals[0], op->o_tmpmemctx );
1222 } else if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1223 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1224 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1225 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1226 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1229 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1230 for (ss = si->si_ops, sprev = (syncops *)&si->si_ops; ss;
1231 sprev = ss, ss=snext)
1239 if ( ss->s_op->o_abandon )
1242 /* Don't send ops back to the originator */
1243 if ( opc->osid > 0 && opc->osid == ss->s_sid ) {
1244 Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping original sid %03x\n",
1249 /* Don't send ops back to the messenger */
1250 if ( opc->rsid > 0 && opc->rsid == ss->s_sid ) {
1251 Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping relayed sid %03x\n",
1261 /* If the base of the search is missing, signal a refresh */
1262 rc = syncprov_findbase( op, &fc );
1263 if ( rc != LDAP_SUCCESS ) {
1264 SlapReply rs = {REP_RESULT};
1265 send_ldap_error( ss->s_op, &rs, LDAP_SYNC_REFRESH_REQUIRED,
1266 "search base has changed" );
1267 sprev->s_next = snext;
1268 syncprov_drop_psearch( ss, 1 );
1273 /* If we're sending results now, look for this op in old matches */
1277 /* Did we modify the search base? */
1278 if ( dn_match( &op->o_req_ndn, &ss->s_base )) {
1279 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1280 ss->s_flags |= PS_WROTE_BASE;
1281 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1284 for ( sm=opc->smatches, old=(syncmatches *)&opc->smatches; sm;
1285 old=sm, sm=sm->sm_next ) {
1286 if ( sm->sm_op == ss ) {
1288 old->sm_next = sm->sm_next;
1289 op->o_tmpfree( sm, op->o_tmpmemctx );
1296 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1299 oh.oh_conn = ss->s_op->o_conn;
1300 oh.oh_connid = ss->s_op->o_connid;
1301 op2.o_bd = op->o_bd->bd_self;
1303 op2.o_extra = op->o_extra;
1304 op2.o_callback = NULL;
1305 if (ss->s_flags & PS_FIX_FILTER) {
1306 /* Skip the AND/GE clause that we stuck on in front. We
1307 would lose deletes/mods that happen during the refresh
1308 phase otherwise (ITS#6555) */
1309 op2.ors_filter = ss->s_op->ors_filter->f_and->f_next;
1311 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1312 rc = test_filter( &op2, e, op2.ors_filter );
1315 Debug( LDAP_DEBUG_TRACE, "syncprov_matchops: sid %03x fscope %d rc %d\n",
1316 ss->s_sid, fc.fscope, rc );
1318 /* check if current o_req_dn is in scope and matches filter */
1319 if ( fc.fscope && rc == LDAP_COMPARE_TRUE ) {
1321 sm = op->o_tmpalloc( sizeof(syncmatches), op->o_tmpmemctx );
1322 sm->sm_next = opc->smatches;
1324 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1326 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1329 /* if found send UPDATE else send ADD */
1330 syncprov_qresp( opc, ss,
1331 found ? LDAP_SYNC_MODIFY : LDAP_SYNC_ADD );
1333 } else if ( !saveit && found ) {
1335 syncprov_qresp( opc, ss, LDAP_SYNC_DELETE );
1336 } else if ( !saveit ) {
1337 syncprov_qresp( opc, ss, LDAP_SYNC_NEW_COOKIE );
1339 if ( !saveit && found ) {
1340 /* Decrement s_inuse, was incremented when called
1341 * with saveit == TRUE
1343 syncprov_free_syncop( ss );
1346 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1348 if ( op->o_tag != LDAP_REQ_ADD && e ) {
1349 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1353 overlay_entry_release_ov( op, e, 0, on );
1356 if ( opc->se && !saveit ) {
1357 if ( !dec_mutexint( opc->se->e_private )) {
1358 opc->se->e_private = NULL;
1359 entry_free( opc->se );
1364 op->o_tmpfree( fc.fdn->bv_val, op->o_tmpmemctx );
1370 syncprov_op_cleanup( Operation *op, SlapReply *rs )
1372 slap_callback *cb = op->o_callback;
1373 opcookie *opc = cb->sc_private;
1374 slap_overinst *on = opc->son;
1375 syncprov_info_t *si = on->on_bi.bi_private;
1376 syncmatches *sm, *snext;
1379 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1380 if ( si->si_active )
1382 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1384 for (sm = opc->smatches; sm; sm=snext) {
1385 snext = sm->sm_next;
1386 syncprov_free_syncop( sm->sm_op );
1387 op->o_tmpfree( sm, op->o_tmpmemctx );
1390 /* Remove op from lock table */
1393 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1394 mt->mt_mods = mt->mt_mods->mi_next;
1395 /* If there are more, promote the next one */
1396 if ( mt->mt_mods ) {
1397 mt->mt_op = mt->mt_mods->mi_op;
1398 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1400 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1401 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1402 avl_delete( &si->si_mods, mt, sp_avl_cmp );
1403 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1404 ldap_pvt_thread_mutex_destroy( &mt->mt_mutex );
1408 if ( !BER_BVISNULL( &opc->suuid ))
1409 op->o_tmpfree( opc->suuid.bv_val, op->o_tmpmemctx );
1410 if ( !BER_BVISNULL( &opc->sndn ))
1411 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1412 if ( !BER_BVISNULL( &opc->sdn ))
1413 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1414 op->o_callback = cb->sc_next;
1415 op->o_tmpfree(cb, op->o_tmpmemctx);
1421 syncprov_checkpoint( Operation *op, slap_overinst *on )
1423 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
1426 SlapReply rsm = { 0 };
1427 slap_callback cb = {0};
1432 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1435 for ( i=0; i<si->si_numcsns; i++ ) {
1436 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1439 mod.sml_numvals = si->si_numcsns;
1440 mod.sml_values = si->si_ctxcsn;
1441 mod.sml_nvalues = NULL;
1442 mod.sml_desc = slap_schema.si_ad_contextCSN;
1443 mod.sml_op = LDAP_MOD_REPLACE;
1444 mod.sml_flags = SLAP_MOD_INTERNAL;
1445 mod.sml_next = NULL;
1447 cb.sc_response = slap_null_cb;
1449 opm.o_tag = LDAP_REQ_MODIFY;
1450 opm.o_callback = &cb;
1451 opm.orm_modlist = &mod;
1452 opm.orm_no_opattrs = 1;
1453 if ( SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1454 be = *on->on_info->oi_origdb;
1457 opm.o_req_dn = si->si_contextdn;
1458 opm.o_req_ndn = si->si_contextdn;
1459 bi = opm.o_bd->bd_info;
1460 opm.o_bd->bd_info = on->on_info->oi_orig;
1461 opm.o_managedsait = SLAP_CONTROL_NONCRITICAL;
1462 opm.o_no_schema_check = 1;
1463 opm.o_bd->be_modify( &opm, &rsm );
1465 if ( rsm.sr_err == LDAP_NO_SUCH_OBJECT &&
1466 SLAP_SYNC_SUBENTRY( opm.o_bd )) {
1468 char txtbuf[SLAP_TEXT_BUFLEN];
1469 size_t textlen = sizeof txtbuf;
1470 Entry *e = slap_create_context_csn_entry( opm.o_bd, NULL );
1471 slap_mods2entry( &mod, &e, 0, 1, &text, txtbuf, textlen);
1473 opm.o_bd->be_add( &opm, &rsm );
1474 if ( e == opm.ora_e )
1475 be_entry_release_w( &opm, opm.ora_e );
1477 opm.o_bd->bd_info = bi;
1479 if ( mod.sml_next != NULL ) {
1480 slap_mods_free( mod.sml_next, 1 );
1483 for ( i=0; i<si->si_numcsns; i++ ) {
1484 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1490 syncprov_add_slog( Operation *op )
1492 opcookie *opc = op->o_callback->sc_private;
1493 slap_overinst *on = opc->son;
1494 syncprov_info_t *si = on->on_bi.bi_private;
1500 if ( BER_BVISEMPTY( &op->o_csn ) ) {
1501 /* During the syncrepl refresh phase we can receive operations
1502 * without a csn. We cannot reliably determine the consumers
1503 * state with respect to such operations, so we ignore them and
1504 * wipe out anything in the log if we see them.
1506 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1507 while ( se = sl->sl_head ) {
1508 sl->sl_head = se->se_next;
1513 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1517 /* Allocate a record. UUIDs are not NUL-terminated. */
1518 se = ch_malloc( sizeof( slog_entry ) + opc->suuid.bv_len +
1519 op->o_csn.bv_len + 1 );
1521 se->se_tag = op->o_tag;
1523 se->se_uuid.bv_val = (char *)(&se[1]);
1524 AC_MEMCPY( se->se_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1525 se->se_uuid.bv_len = opc->suuid.bv_len;
1527 se->se_csn.bv_val = se->se_uuid.bv_val + opc->suuid.bv_len;
1528 AC_MEMCPY( se->se_csn.bv_val, op->o_csn.bv_val, op->o_csn.bv_len );
1529 se->se_csn.bv_val[op->o_csn.bv_len] = '\0';
1530 se->se_csn.bv_len = op->o_csn.bv_len;
1531 se->se_sid = slap_parse_csn_sid( &se->se_csn );
1533 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1534 if ( sl->sl_head ) {
1535 /* Keep the list in csn order. */
1536 if ( ber_bvcmp( &sl->sl_tail->se_csn, &se->se_csn ) <= 0 ) {
1537 sl->sl_tail->se_next = se;
1542 for ( sep = &sl->sl_head; *sep; sep = &(*sep)->se_next ) {
1543 if ( ber_bvcmp( &se->se_csn, &(*sep)->se_csn ) < 0 ) {
1555 while ( sl->sl_num > sl->sl_size ) {
1557 sl->sl_head = se->se_next;
1561 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1565 /* Just set a flag if we found the matching entry */
1567 playlog_cb( Operation *op, SlapReply *rs )
1569 if ( rs->sr_type == REP_SEARCH ) {
1570 op->o_callback->sc_private = (void *)1;
1575 /* enter with sl->sl_mutex locked, release before returning */
1577 syncprov_playlog( Operation *op, SlapReply *rs, sessionlog *sl,
1578 sync_control *srs, BerVarray ctxcsn, int numcsns, int *sids )
1580 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1582 int i, j, ndel, num, nmods, mmods;
1583 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
1585 struct berval delcsn[2];
1587 if ( !sl->sl_num ) {
1588 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1596 uuids = op->o_tmpalloc( (num+1) * sizeof( struct berval ) +
1597 num * UUID_LEN, op->o_tmpmemctx );
1598 uuids[0].bv_val = (char *)(uuids + num + 1);
1600 delcsn[0].bv_len = 0;
1601 delcsn[0].bv_val = cbuf;
1602 BER_BVZERO(&delcsn[1]);
1604 /* Make a copy of the relevant UUIDs. Put the Deletes up front
1605 * and everything else at the end. Do this first so we can
1606 * unlock the list mutex.
1608 Debug( LDAP_DEBUG_SYNC, "srs csn %s\n",
1609 srs->sr_state.ctxcsn[0].bv_val, 0, 0 );
1610 for ( se=sl->sl_head; se; se=se->se_next ) {
1612 Debug( LDAP_DEBUG_SYNC, "log csn %s\n", se->se_csn.bv_val, 0, 0 );
1614 for ( k=0; k<srs->sr_state.numcsns; k++ ) {
1615 if ( se->se_sid == srs->sr_state.sids[k] ) {
1616 ndel = ber_bvcmp( &se->se_csn, &srs->sr_state.ctxcsn[k] );
1621 Debug( LDAP_DEBUG_SYNC, "cmp %d, too old\n", ndel, 0, 0 );
1625 for ( k=0; k<numcsns; k++ ) {
1626 if ( se->se_sid == sids[k] ) {
1627 ndel = ber_bvcmp( &se->se_csn, &ctxcsn[k] );
1632 Debug( LDAP_DEBUG_SYNC, "cmp %d, too new\n", ndel, 0, 0 );
1635 if ( se->se_tag == LDAP_REQ_DELETE ) {
1638 AC_MEMCPY( cbuf, se->se_csn.bv_val, se->se_csn.bv_len );
1639 delcsn[0].bv_len = se->se_csn.bv_len;
1640 delcsn[0].bv_val[delcsn[0].bv_len] = '\0';
1645 uuids[j].bv_val = uuids[0].bv_val + (j * UUID_LEN);
1646 AC_MEMCPY(uuids[j].bv_val, se->se_uuid.bv_val, UUID_LEN);
1647 uuids[j].bv_len = UUID_LEN;
1649 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1653 /* Zero out unused slots */
1654 for ( i=ndel; i < num - nmods; i++ )
1655 uuids[i].bv_len = 0;
1657 /* Mods must be validated to see if they belong in this delete set.
1661 /* Strip any duplicates */
1662 for ( i=0; i<nmods; i++ ) {
1663 for ( j=0; j<ndel; j++ ) {
1664 if ( bvmatch( &uuids[j], &uuids[num - 1 - i] )) {
1665 uuids[num - 1 - i].bv_len = 0;
1670 if ( uuids[num - 1 - i].bv_len == 0 ) continue;
1671 for ( j=0; j<i; j++ ) {
1672 if ( bvmatch( &uuids[num - 1 - j], &uuids[num - 1 - i] )) {
1673 uuids[num - 1 - i].bv_len = 0;
1682 SlapReply frs = { REP_RESULT };
1685 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
1686 slap_callback cb = {0};
1690 fop.o_sync_mode = 0;
1691 fop.o_callback = &cb;
1692 fop.ors_limit = NULL;
1693 fop.ors_tlimit = SLAP_NO_LIMIT;
1694 fop.ors_attrs = slap_anlist_all_attributes;
1695 fop.ors_attrsonly = 0;
1696 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
1698 af.f_choice = LDAP_FILTER_AND;
1701 mf.f_choice = LDAP_FILTER_EQUALITY;
1703 mf.f_av_desc = slap_schema.si_ad_entryUUID;
1704 mf.f_next = fop.ors_filter;
1706 fop.ors_filter = ⁡
1708 cb.sc_response = playlog_cb;
1709 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
1711 for ( i=ndel; i<num; i++ ) {
1712 if ( uuids[i].bv_len != 0 ) {
1714 mf.f_av_value = uuids[i];
1715 cb.sc_private = NULL;
1717 frs.sr_nentries = 0;
1718 rc = fop.o_bd->be_search( &fop, &frs );
1720 /* If entry was not found, add to delete list */
1721 if ( !cb.sc_private ) {
1722 uuids[ndel++] = uuids[i];
1726 fop.o_bd->bd_info = (BackendInfo *)on;
1729 struct berval cookie;
1731 if ( delcsn[0].bv_len ) {
1732 slap_compose_sync_cookie( op, &cookie, delcsn, srs->sr_state.rid,
1733 slap_serverID ? slap_serverID : -1 );
1735 Debug( LDAP_DEBUG_SYNC, "syncprov_playlog: cookie=%s\n", cookie.bv_val, 0, 0 );
1738 uuids[ndel].bv_val = NULL;
1739 syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET,
1740 delcsn[0].bv_len ? &cookie : NULL, 0, uuids, 1 );
1741 if ( delcsn[0].bv_len ) {
1742 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
1745 op->o_tmpfree( uuids, op->o_tmpmemctx );
1749 syncprov_op_response( Operation *op, SlapReply *rs )
1751 opcookie *opc = op->o_callback->sc_private;
1752 slap_overinst *on = opc->son;
1753 syncprov_info_t *si = on->on_bi.bi_private;
1756 if ( rs->sr_err == LDAP_SUCCESS )
1758 struct berval maxcsn;
1759 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
1760 int do_check = 0, have_psearches, foundit, csn_changed = 0;
1762 ldap_pvt_thread_mutex_lock( &si->si_resp_mutex );
1764 /* Update our context CSN */
1766 maxcsn.bv_val = cbuf;
1767 maxcsn.bv_len = sizeof(cbuf);
1768 ldap_pvt_thread_rdwr_wlock( &si->si_csn_rwlock );
1770 slap_get_commit_csn( op, &maxcsn, &foundit );
1771 if ( BER_BVISEMPTY( &maxcsn ) && SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1772 /* syncrepl queues the CSN values in the db where
1773 * it is configured , not where the changes are made.
1774 * So look for a value in the glue db if we didn't
1775 * find any in this db.
1777 BackendDB *be = op->o_bd;
1778 op->o_bd = select_backend( &be->be_nsuffix[0], 1);
1779 maxcsn.bv_val = cbuf;
1780 maxcsn.bv_len = sizeof(cbuf);
1781 slap_get_commit_csn( op, &maxcsn, &foundit );
1784 if ( !BER_BVISEMPTY( &maxcsn ) ) {
1787 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1788 assert( !syn->ssyn_validate( syn, &maxcsn ));
1790 sid = slap_parse_csn_sid( &maxcsn );
1791 for ( i=0; i<si->si_numcsns; i++ ) {
1792 if ( sid == si->si_sids[i] ) {
1793 if ( ber_bvcmp( &maxcsn, &si->si_ctxcsn[i] ) > 0 ) {
1794 ber_bvreplace( &si->si_ctxcsn[i], &maxcsn );
1800 /* It's a new SID for us */
1801 if ( i == si->si_numcsns ) {
1802 value_add_one( &si->si_ctxcsn, &maxcsn );
1805 si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
1807 si->si_sids[i] = sid;
1811 /* Don't do any processing for consumer contextCSN updates */
1812 if ( op->o_dont_replicate ) {
1813 if ( op->o_tag == LDAP_REQ_MODIFY &&
1814 op->orm_modlist->sml_op == LDAP_MOD_REPLACE &&
1815 op->orm_modlist->sml_desc == slap_schema.si_ad_contextCSN ) {
1816 /* Catch contextCSN updates from syncrepl. We have to look at
1817 * all the attribute values, as there may be more than one csn
1818 * that changed, and only one can be passed in the csn queue.
1820 Modifications *mod = op->orm_modlist;
1823 for ( i=0; i<mod->sml_numvals; i++ ) {
1824 sid = slap_parse_csn_sid( &mod->sml_values[i] );
1825 for ( j=0; j<si->si_numcsns; j++ ) {
1826 if ( sid == si->si_sids[j] ) {
1827 if ( ber_bvcmp( &mod->sml_values[i], &si->si_ctxcsn[j] ) > 0 ) {
1828 ber_bvreplace( &si->si_ctxcsn[j], &mod->sml_values[i] );
1835 if ( j == si->si_numcsns ) {
1836 value_add_one( &si->si_ctxcsn, &mod->sml_values[i] );
1838 si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
1840 si->si_sids[j] = sid;
1846 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1848 if ( csn_changed ) {
1850 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1851 for ( ss = si->si_ops; ss; ss = ss->s_next ) {
1852 if ( ss->s_op->o_abandon )
1854 /* Send the updated csn to all syncrepl consumers,
1855 * including the server from which it originated.
1856 * The syncrepl consumer and syncprov provider on
1857 * the originating server may be configured to store
1858 * their csn values in different entries.
1860 syncprov_qresp( opc, ss, LDAP_SYNC_NEW_COOKIE );
1862 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1865 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1871 if ( si->si_chkops || si->si_chktime ) {
1872 /* Never checkpoint adding the context entry,
1875 if ( op->o_tag != LDAP_REQ_ADD ||
1876 !dn_match( &op->o_req_ndn, &si->si_contextdn )) {
1877 if ( si->si_chkops && si->si_numops >= si->si_chkops ) {
1881 if ( si->si_chktime &&
1882 (op->o_time - si->si_chklast >= si->si_chktime )) {
1883 if ( si->si_chklast ) {
1885 si->si_chklast = op->o_time;
1892 si->si_dirty = !csn_changed;
1893 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1896 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1897 syncprov_checkpoint( op, on );
1898 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1901 /* only update consumer ctx if this is a newer csn */
1902 if ( csn_changed ) {
1903 opc->sctxcsn = maxcsn;
1906 /* Handle any persistent searches */
1907 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1908 have_psearches = ( si->si_ops != NULL );
1909 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1910 if ( have_psearches ) {
1913 case LDAP_REQ_MODIFY:
1914 case LDAP_REQ_MODRDN:
1915 case LDAP_REQ_EXTENDED:
1916 syncprov_matchops( op, opc, 0 );
1918 case LDAP_REQ_DELETE:
1919 /* for each match in opc->smatches:
1922 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1923 if ( sm->sm_op->s_op->o_abandon )
1925 syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_DELETE );
1931 /* Add any log records */
1932 if ( si->si_logs && op->o_tag != LDAP_REQ_ADD ) {
1933 syncprov_add_slog( op );
1935 leave: ldap_pvt_thread_mutex_unlock( &si->si_resp_mutex );
1937 return SLAP_CB_CONTINUE;
1940 /* We don't use a subentry to store the context CSN any more.
1941 * We expose the current context CSN as an operational attribute
1942 * of the suffix entry.
1945 syncprov_op_compare( Operation *op, SlapReply *rs )
1947 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1948 syncprov_info_t *si = on->on_bi.bi_private;
1949 int rc = SLAP_CB_CONTINUE;
1951 if ( dn_match( &op->o_req_ndn, &si->si_contextdn ) &&
1952 op->oq_compare.rs_ava->aa_desc == slap_schema.si_ad_contextCSN )
1957 e.e_name = si->si_contextdn;
1958 e.e_nname = si->si_contextdn;
1961 a.a_desc = slap_schema.si_ad_contextCSN;
1963 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1965 a.a_vals = si->si_ctxcsn;
1966 a.a_nvals = a.a_vals;
1967 a.a_numvals = si->si_numcsns;
1969 rs->sr_err = access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc,
1970 &op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL );
1971 if ( ! rs->sr_err ) {
1972 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1973 goto return_results;
1976 if ( get_assert( op ) &&
1977 ( test_filter( op, &e, get_assertion( op ) ) != LDAP_COMPARE_TRUE ) )
1979 rs->sr_err = LDAP_ASSERTION_FAILED;
1980 goto return_results;
1984 rs->sr_err = LDAP_COMPARE_FALSE;
1986 if ( attr_valfind( &a,
1987 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
1988 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
1989 &op->oq_compare.rs_ava->aa_value, NULL, op->o_tmpmemctx ) == 0 )
1991 rs->sr_err = LDAP_COMPARE_TRUE;
1996 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1998 send_ldap_result( op, rs );
2000 if( rs->sr_err == LDAP_COMPARE_FALSE || rs->sr_err == LDAP_COMPARE_TRUE ) {
2001 rs->sr_err = LDAP_SUCCESS;
2010 syncprov_op_mod( Operation *op, SlapReply *rs )
2012 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2013 syncprov_info_t *si = on->on_bi.bi_private;
2016 int have_psearches, cbsize;
2018 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2019 have_psearches = ( si->si_ops != NULL );
2021 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2023 cbsize = sizeof(slap_callback) + sizeof(opcookie) +
2024 (have_psearches ? sizeof(modinst) : 0 );
2026 cb = op->o_tmpcalloc(1, cbsize, op->o_tmpmemctx);
2027 opc = (opcookie *)(cb+1);
2029 cb->sc_response = syncprov_op_response;
2030 cb->sc_cleanup = syncprov_op_cleanup;
2031 cb->sc_private = opc;
2032 cb->sc_next = op->o_callback;
2033 op->o_callback = cb;
2037 if ( op->o_csn.bv_val ) {
2038 opc->osid = slap_parse_csn_sid( &op->o_csn );
2040 if ( op->o_controls ) {
2041 struct sync_cookie *scook =
2042 op->o_controls[slap_cids.sc_LDAPsync];
2044 opc->rsid = scook->sid;
2047 /* If there are active persistent searches, lock this operation.
2048 * See seqmod.c for the locking logic on its own.
2050 if ( have_psearches ) {
2051 modtarget *mt, mtdummy;
2054 mi = (modinst *)(opc+1);
2057 /* See if we're already modifying this entry... */
2059 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
2060 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
2062 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
2063 if ( mt->mt_mods == NULL ) {
2064 /* Cannot reuse this mt, as another thread is about
2065 * to release it in syncprov_op_cleanup.
2067 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2072 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
2073 mt->mt_tail->mi_next = mi;
2075 /* wait for this op to get to head of list */
2076 while ( mt->mt_mods != mi ) {
2077 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2078 /* FIXME: if dynamic config can delete overlays or
2079 * databases we'll have to check for cleanup here.
2080 * Currently it's not an issue because there are
2081 * no dynamic config deletes...
2083 if ( slapd_shutdown )
2084 return SLAPD_ABANDON;
2086 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
2087 ldap_pvt_thread_yield();
2088 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
2090 /* clean up if the caller is giving up */
2091 if ( op->o_abandon ) {
2093 for ( m2 = mt->mt_mods; m2->mi_next != mi;
2095 m2->mi_next = mi->mi_next;
2096 if ( mt->mt_tail == mi ) mt->mt_tail = m2;
2097 op->o_tmpfree( cb, op->o_tmpmemctx );
2098 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2099 return SLAPD_ABANDON;
2102 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2104 /* Record that we're modifying this entry now */
2105 mt = ch_malloc( sizeof(modtarget) );
2108 mt->mt_op = mi->mi_op;
2109 ldap_pvt_thread_mutex_init( &mt->mt_mutex );
2110 avl_insert( &si->si_mods, mt, sp_avl_cmp, avl_dup_error );
2111 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
2116 if (( have_psearches || si->si_logs ) && op->o_tag != LDAP_REQ_ADD )
2117 syncprov_matchops( op, opc, 1 );
2119 return SLAP_CB_CONTINUE;
2123 syncprov_op_extended( Operation *op, SlapReply *rs )
2125 if ( exop_is_write( op ))
2126 return syncprov_op_mod( op, rs );
2128 return SLAP_CB_CONTINUE;
2131 typedef struct searchstate {
2132 slap_overinst *ss_on;
2134 BerVarray ss_ctxcsn;
2137 #define SS_PRESENT 0x01
2138 #define SS_CHANGED 0x02
2143 syncprov_search_cleanup( Operation *op, SlapReply *rs )
2145 if ( rs->sr_ctrls ) {
2146 op->o_tmpfree( rs->sr_ctrls[0], op->o_tmpmemctx );
2147 op->o_tmpfree( rs->sr_ctrls, op->o_tmpmemctx );
2148 rs->sr_ctrls = NULL;
2153 typedef struct SyncOperationBuffer {
2157 AttributeName sob_extra; /* not always present */
2158 /* Further data allocated here */
2159 } SyncOperationBuffer;
2162 syncprov_detach_op( Operation *op, syncops *so, slap_overinst *on )
2164 SyncOperationBuffer *sopbuf2;
2169 GroupAssertion *g1, *g2;
2171 /* count the search attrs */
2172 for (i=0; op->ors_attrs && !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2173 alen += op->ors_attrs[i].an_name.bv_len + 1;
2175 /* Make a new copy of the operation */
2176 size = offsetof( SyncOperationBuffer, sob_extra ) +
2177 (i ? ( (i+1) * sizeof(AttributeName) + alen) : 0) +
2178 op->o_req_dn.bv_len + 1 +
2179 op->o_req_ndn.bv_len + 1 +
2180 op->o_ndn.bv_len + 1 +
2181 so->s_filterstr.bv_len + 1;
2182 sopbuf2 = ch_calloc( 1, size );
2183 op2 = &sopbuf2->sob_op;
2184 op2->o_hdr = &sopbuf2->sob_hdr;
2185 LDAP_SLIST_FIRST(&op2->o_extra) = &sopbuf2->sob_oe;
2187 /* Copy the fields we care about explicitly, leave the rest alone */
2188 *op2->o_hdr = *op->o_hdr;
2189 op2->o_tag = op->o_tag;
2190 op2->o_time = op->o_time;
2191 op2->o_bd = on->on_info->oi_origdb;
2192 op2->o_request = op->o_request;
2193 op2->o_managedsait = op->o_managedsait;
2194 LDAP_SLIST_FIRST(&op2->o_extra)->oe_key = on;
2195 LDAP_SLIST_NEXT(LDAP_SLIST_FIRST(&op2->o_extra), oe_next) = NULL;
2197 ptr = (char *) sopbuf2 + offsetof( SyncOperationBuffer, sob_extra );
2199 op2->ors_attrs = (AttributeName *) ptr;
2200 ptr = (char *) &op2->ors_attrs[i+1];
2201 for (i=0; !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2202 op2->ors_attrs[i] = op->ors_attrs[i];
2203 op2->ors_attrs[i].an_name.bv_val = ptr;
2204 ptr = lutil_strcopy( ptr, op->ors_attrs[i].an_name.bv_val ) + 1;
2206 BER_BVZERO( &op2->ors_attrs[i].an_name );
2209 op2->o_authz = op->o_authz;
2210 op2->o_ndn.bv_val = ptr;
2211 ptr = lutil_strcopy(ptr, op->o_ndn.bv_val) + 1;
2212 op2->o_dn = op2->o_ndn;
2213 op2->o_req_dn.bv_len = op->o_req_dn.bv_len;
2214 op2->o_req_dn.bv_val = ptr;
2215 ptr = lutil_strcopy(ptr, op->o_req_dn.bv_val) + 1;
2216 op2->o_req_ndn.bv_len = op->o_req_ndn.bv_len;
2217 op2->o_req_ndn.bv_val = ptr;
2218 ptr = lutil_strcopy(ptr, op->o_req_ndn.bv_val) + 1;
2219 op2->ors_filterstr.bv_val = ptr;
2220 strcpy( ptr, so->s_filterstr.bv_val );
2221 op2->ors_filterstr.bv_len = so->s_filterstr.bv_len;
2223 /* Skip the AND/GE clause that we stuck on in front */
2224 if ( so->s_flags & PS_FIX_FILTER ) {
2225 op2->ors_filter = op->ors_filter->f_and->f_next;
2226 so->s_flags ^= PS_FIX_FILTER;
2228 op2->ors_filter = op->ors_filter;
2230 op2->ors_filter = filter_dup( op2->ors_filter, NULL );
2233 /* Copy any cached group ACLs individually */
2234 op2->o_groups = NULL;
2235 for ( g1=op->o_groups; g1; g1=g1->ga_next ) {
2236 g2 = ch_malloc( sizeof(GroupAssertion) + g1->ga_len );
2238 strcpy( g2->ga_ndn, g1->ga_ndn );
2239 g2->ga_next = op2->o_groups;
2242 /* Don't allow any further group caching */
2243 op2->o_do_not_cache = 1;
2245 /* Add op2 to conn so abandon will find us */
2246 op->o_conn->c_n_ops_executing++;
2247 op->o_conn->c_n_ops_completed--;
2248 LDAP_STAILQ_INSERT_TAIL( &op->o_conn->c_ops, op2, o_next );
2249 so->s_flags |= PS_IS_DETACHED;
2251 /* Prevent anyone else from trying to send a result for this op */
2256 syncprov_search_response( Operation *op, SlapReply *rs )
2258 searchstate *ss = op->o_callback->sc_private;
2259 slap_overinst *on = ss->ss_on;
2260 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2261 sync_control *srs = op->o_controls[slap_cids.sc_LDAPsync];
2263 if ( rs->sr_type == REP_SEARCH || rs->sr_type == REP_SEARCHREF ) {
2265 /* If we got a referral without a referral object, there's
2266 * something missing that we cannot replicate. Just ignore it.
2267 * The consumer will abort because we didn't send the expected
2270 if ( !rs->sr_entry ) {
2271 assert( rs->sr_entry != NULL );
2272 Debug( LDAP_DEBUG_ANY, "bogus referral in context\n",0,0,0 );
2273 return SLAP_CB_CONTINUE;
2275 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryCSN );
2276 if ( a == NULL && rs->sr_operational_attrs != NULL ) {
2277 a = attr_find( rs->sr_operational_attrs, slap_schema.si_ad_entryCSN );
2281 sid = slap_parse_csn_sid( &a->a_nvals[0] );
2283 /* Don't send changed entries back to the originator */
2284 if ( sid == srs->sr_state.sid && srs->sr_state.numcsns ) {
2285 Debug( LDAP_DEBUG_SYNC,
2286 "Entry %s changed by peer, ignored\n",
2287 rs->sr_entry->e_name.bv_val, 0, 0 );
2288 return LDAP_SUCCESS;
2291 /* If not a persistent search */
2293 /* Make sure entry is less than the snapshot'd contextCSN */
2294 for ( i=0; i<ss->ss_numcsns; i++ ) {
2295 if ( sid == ss->ss_sids[i] && ber_bvcmp( &a->a_nvals[0],
2296 &ss->ss_ctxcsn[i] ) > 0 ) {
2297 Debug( LDAP_DEBUG_SYNC,
2298 "Entry %s CSN %s greater than snapshot %s\n",
2299 rs->sr_entry->e_name.bv_val,
2300 a->a_nvals[0].bv_val,
2301 ss->ss_ctxcsn[i].bv_val );
2302 return LDAP_SUCCESS;
2307 /* Don't send old entries twice */
2308 if ( srs->sr_state.ctxcsn ) {
2309 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2310 if ( sid == srs->sr_state.sids[i] &&
2311 ber_bvcmp( &a->a_nvals[0],
2312 &srs->sr_state.ctxcsn[i] )<= 0 ) {
2313 Debug( LDAP_DEBUG_SYNC,
2314 "Entry %s CSN %s older or equal to ctx %s\n",
2315 rs->sr_entry->e_name.bv_val,
2316 a->a_nvals[0].bv_val,
2317 srs->sr_state.ctxcsn[i].bv_val );
2318 return LDAP_SUCCESS;
2323 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2325 rs->sr_ctrls[1] = NULL;
2326 /* If we're in delta-sync mode, always send a cookie */
2327 if ( si->si_nopres && si->si_usehint && a ) {
2328 struct berval cookie;
2329 slap_compose_sync_cookie( op, &cookie, a->a_nvals, srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
2330 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2331 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 1, &cookie );
2333 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2334 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 0, NULL );
2336 } else if ( rs->sr_type == REP_RESULT && rs->sr_err == LDAP_SUCCESS ) {
2337 struct berval cookie = BER_BVNULL;
2339 if ( ( ss->ss_flags & SS_CHANGED ) &&
2340 ss->ss_ctxcsn && !BER_BVISNULL( &ss->ss_ctxcsn[0] )) {
2341 slap_compose_sync_cookie( op, &cookie, ss->ss_ctxcsn,
2342 srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
2344 Debug( LDAP_DEBUG_SYNC, "syncprov_search_response: cookie=%s\n", cookie.bv_val, 0, 0 );
2347 /* Is this a regular refresh?
2348 * Note: refresh never gets here if there were no changes
2351 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2353 rs->sr_ctrls[1] = NULL;
2354 rs->sr_err = syncprov_done_ctrl( op, rs, rs->sr_ctrls,
2355 0, 1, &cookie, ( ss->ss_flags & SS_PRESENT ) ? LDAP_SYNC_REFRESH_PRESENTS :
2356 LDAP_SYNC_REFRESH_DELETES );
2357 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2359 /* It's RefreshAndPersist, transition to Persist phase */
2360 syncprov_sendinfo( op, rs, ( ss->ss_flags & SS_PRESENT ) ?
2361 LDAP_TAG_SYNC_REFRESH_PRESENT : LDAP_TAG_SYNC_REFRESH_DELETE,
2362 ( ss->ss_flags & SS_CHANGED ) ? &cookie : NULL,
2364 if ( !BER_BVISNULL( &cookie ))
2365 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2367 /* Detach this Op from frontend control */
2368 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
2370 /* But not if this connection was closed along the way */
2371 if ( op->o_abandon ) {
2372 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2373 /* syncprov_ab_cleanup will free this syncop */
2374 return SLAPD_ABANDON;
2377 ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex );
2378 /* Turn off the refreshing flag */
2379 ss->ss_so->s_flags ^= PS_IS_REFRESHING;
2381 syncprov_detach_op( op, ss->ss_so, on );
2383 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2385 /* If there are queued responses, fire them off */
2386 if ( ss->ss_so->s_res )
2387 syncprov_qstart( ss->ss_so );
2388 ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
2391 return LDAP_SUCCESS;
2395 return SLAP_CB_CONTINUE;
2399 syncprov_op_search( Operation *op, SlapReply *rs )
2401 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2402 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2404 int gotstate = 0, changed = 0, do_present = 0;
2405 syncops *sop = NULL;
2409 int i, *sids, numcsns;
2410 struct berval mincsn;
2413 if ( !(op->o_sync_mode & SLAP_SYNC_REFRESH) ) return SLAP_CB_CONTINUE;
2415 if ( op->ors_deref & LDAP_DEREF_SEARCHING ) {
2416 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR, "illegal value for derefAliases" );
2420 srs = op->o_controls[slap_cids.sc_LDAPsync];
2422 /* If this is a persistent search, set it up right away */
2423 if ( op->o_sync_mode & SLAP_SYNC_PERSIST ) {
2433 so.s_flags = PS_IS_REFRESHING | PS_FIND_BASE;
2434 /* syncprov_findbase expects to be called as a callback... */
2435 sc.sc_private = &opc;
2437 ldap_pvt_thread_mutex_init( &so.s_mutex );
2438 cb = op->o_callback;
2439 op->o_callback = ≻
2440 rs->sr_err = syncprov_findbase( op, &fc );
2441 op->o_callback = cb;
2442 ldap_pvt_thread_mutex_destroy( &so.s_mutex );
2444 if ( rs->sr_err != LDAP_SUCCESS ) {
2445 send_ldap_result( op, rs );
2448 sop = ch_malloc( sizeof( syncops ));
2450 ldap_pvt_thread_mutex_init( &sop->s_mutex );
2451 sop->s_rid = srs->sr_state.rid;
2452 sop->s_sid = srs->sr_state.sid;
2455 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2456 while ( si->si_active ) {
2457 /* Wait for active mods to finish before proceeding, as they
2458 * may already have inspected the si_ops list looking for
2459 * consumers to replicate the change to. Using the log
2460 * doesn't help, as we may finish playing it before the
2461 * active mods gets added to it.
2463 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2464 if ( slapd_shutdown )
2465 return SLAPD_ABANDON;
2466 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
2467 ldap_pvt_thread_yield();
2468 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2470 sop->s_next = si->si_ops;
2472 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2475 /* snapshot the ctxcsn */
2476 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2477 numcsns = si->si_numcsns;
2479 ber_bvarray_dup_x( &ctxcsn, si->si_ctxcsn, op->o_tmpmemctx );
2480 sids = op->o_tmpalloc( numcsns * sizeof(int), op->o_tmpmemctx );
2481 for ( i=0; i<numcsns; i++ )
2482 sids[i] = si->si_sids[i];
2487 dirty = si->si_dirty;
2488 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2490 /* If we have a cookie, handle the PRESENT lookups */
2491 if ( srs->sr_state.ctxcsn ) {
2495 /* If we don't have any CSN of our own yet, pretend nothing
2501 if ( !si->si_nopres )
2502 do_present = SS_PRESENT;
2504 /* If there are SIDs we don't recognize in the cookie, drop them */
2505 for (i=0; i<srs->sr_state.numcsns; ) {
2506 for (j=0; j<numcsns; j++) {
2507 if ( srs->sr_state.sids[i] == sids[j] ) {
2512 if ( j == numcsns ) {
2513 struct berval tmp = srs->sr_state.ctxcsn[i];
2514 j = srs->sr_state.numcsns - 1;
2515 srs->sr_state.ctxcsn[i] = srs->sr_state.ctxcsn[j];
2517 srs->sr_state.ctxcsn[j] = tmp;
2518 srs->sr_state.numcsns = j;
2519 srs->sr_state.sids[i] = srs->sr_state.sids[j];
2525 /* Find the smallest CSN */
2526 mincsn = srs->sr_state.ctxcsn[0];
2527 for ( i=1; i<srs->sr_state.numcsns; i++ ) {
2528 if ( ber_bvcmp( &mincsn, &srs->sr_state.ctxcsn[i] ) > 0 )
2529 mincsn = srs->sr_state.ctxcsn[i];
2532 /* If nothing has changed, shortcut it */
2533 if ( srs->sr_state.numcsns == numcsns ) {
2535 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2536 for ( j=0; j<numcsns; j++ ) {
2537 if ( srs->sr_state.sids[i] != sids[j] )
2539 newer = ber_bvcmp( &srs->sr_state.ctxcsn[i], &ctxcsn[j] );
2540 /* If our state is newer, tell consumer about changes */
2542 changed = SS_CHANGED;
2543 else if ( newer > 0 ) {
2544 /* our state is older, complain to consumer */
2545 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
2546 rs->sr_text = "consumer state is newer than provider!";
2549 syncops **sp = &si->si_ops;
2551 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2552 while ( *sp != sop )
2553 sp = &(*sp)->s_next;
2555 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2558 rs->sr_ctrls = NULL;
2559 send_ldap_result( op, rs );
2567 if ( !changed && !dirty ) {
2569 no_change: if ( !(op->o_sync_mode & SLAP_SYNC_PERSIST) ) {
2570 LDAPControl *ctrls[2];
2574 syncprov_done_ctrl( op, rs, ctrls, 0, 0,
2575 NULL, LDAP_SYNC_REFRESH_DELETES );
2576 rs->sr_ctrls = ctrls;
2577 rs->sr_err = LDAP_SUCCESS;
2578 send_ldap_result( op, rs );
2579 rs->sr_ctrls = NULL;
2585 /* consumer doesn't have the right number of CSNs */
2586 changed = SS_CHANGED;
2588 /* Do we have a sessionlog for this search? */
2591 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
2592 /* Are there any log entries, and is the consumer state
2593 * present in the session log?
2595 if ( sl->sl_num > 0 && ber_bvcmp( &mincsn, &sl->sl_head->se_csn ) >= 0 ) {
2597 /* mutex is unlocked in playlog */
2598 syncprov_playlog( op, rs, sl, srs, ctxcsn, numcsns, sids );
2600 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
2603 /* Is the CSN still present in the database? */
2604 if ( syncprov_findcsn( op, FIND_CSN ) != LDAP_SUCCESS ) {
2605 /* No, so a reload is required */
2606 /* the 2.2 consumer doesn't send this hint */
2607 if ( si->si_usehint && srs->sr_rhint == 0 ) {
2609 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2611 op->o_tmpfree( sids, op->o_tmpmemctx );
2612 rs->sr_err = LDAP_SYNC_REFRESH_REQUIRED;
2613 rs->sr_text = "sync cookie is stale";
2616 if ( srs->sr_state.ctxcsn ) {
2617 ber_bvarray_free_x( srs->sr_state.ctxcsn, op->o_tmpmemctx );
2618 srs->sr_state.ctxcsn = NULL;
2620 if ( srs->sr_state.sids ) {
2621 slap_sl_free( srs->sr_state.sids, op->o_tmpmemctx );
2622 srs->sr_state.sids = NULL;
2624 srs->sr_state.numcsns = 0;
2627 /* If changed and doing Present lookup, send Present UUIDs */
2628 if ( do_present && syncprov_findcsn( op, FIND_PRESENT ) !=
2631 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2633 op->o_tmpfree( sids, op->o_tmpmemctx );
2638 /* No consumer state, assume something has changed */
2639 changed = SS_CHANGED;
2643 /* Append CSN range to search filter, save original filter
2644 * for persistent search evaluation
2647 sop->s_filterstr= op->ors_filterstr;
2650 /* If something changed, find the changes */
2651 if ( gotstate && ( changed || dirty ) ) {
2652 Filter *fand, *fava;
2654 fand = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2655 fand->f_choice = LDAP_FILTER_AND;
2656 fand->f_next = NULL;
2657 fava = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2659 fava->f_choice = LDAP_FILTER_GE;
2660 fava->f_ava = op->o_tmpalloc( sizeof(AttributeAssertion), op->o_tmpmemctx );
2661 fava->f_ava->aa_desc = slap_schema.si_ad_entryCSN;
2662 #ifdef LDAP_COMP_MATCH
2663 fava->f_ava->aa_cf = NULL;
2665 ber_dupbv_x( &fava->f_ava->aa_value, &mincsn, op->o_tmpmemctx );
2666 fava->f_next = op->ors_filter;
2668 ldap_pvt_thread_mutex_lock( &sop->s_mutex );
2669 op->ors_filter = fand;
2670 filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2672 sop->s_flags |= PS_FIX_FILTER;
2673 ldap_pvt_thread_mutex_unlock( &sop->s_mutex );
2677 /* Let our callback add needed info to returned entries */
2678 cb = op->o_tmpcalloc(1, sizeof(slap_callback)+sizeof(searchstate), op->o_tmpmemctx);
2679 ss = (searchstate *)(cb+1);
2682 ss->ss_flags = do_present | changed;
2683 ss->ss_ctxcsn = ctxcsn;
2684 ss->ss_numcsns = numcsns;
2686 cb->sc_response = syncprov_search_response;
2687 cb->sc_cleanup = syncprov_search_cleanup;
2688 cb->sc_private = ss;
2689 cb->sc_next = op->o_callback;
2690 op->o_callback = cb;
2692 /* If this is a persistent search and no changes were reported during
2693 * the refresh phase, just invoke the response callback to transition
2694 * us into persist phase
2696 if ( !changed && !dirty ) {
2697 rs->sr_err = LDAP_SUCCESS;
2698 rs->sr_nentries = 0;
2699 send_ldap_result( op, rs );
2702 return SLAP_CB_CONTINUE;
2706 syncprov_operational(
2710 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2711 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2713 /* This prevents generating unnecessarily; frontend will strip
2714 * any statically stored copy.
2716 if ( op->o_sync != SLAP_CONTROL_NONE )
2717 return SLAP_CB_CONTINUE;
2719 if ( rs->sr_entry &&
2720 dn_match( &rs->sr_entry->e_nname, &si->si_contextdn )) {
2722 if ( SLAP_OPATTRS( rs->sr_attr_flags ) ||
2723 ad_inlist( slap_schema.si_ad_contextCSN, rs->sr_attrs )) {
2724 Attribute *a, **ap = NULL;
2726 for ( a=rs->sr_entry->e_attrs; a; a=a->a_next ) {
2727 if ( a->a_desc == slap_schema.si_ad_contextCSN )
2731 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2732 if ( si->si_ctxcsn ) {
2734 for ( ap = &rs->sr_operational_attrs; *ap;
2735 ap=&(*ap)->a_next );
2737 a = attr_alloc( slap_schema.si_ad_contextCSN );
2742 if ( !(rs->sr_flags & REP_ENTRY_MODIFIABLE) ) {
2743 Entry *e = entry_dup( rs->sr_entry );
2744 if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
2745 overlay_entry_release_ov( op, rs->sr_entry, 0, on );
2746 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
2747 } else if ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) {
2748 entry_free( rs->sr_entry );
2752 REP_ENTRY_MODIFIABLE|REP_ENTRY_MUSTBEFREED;
2753 a = attr_find( rs->sr_entry->e_attrs,
2754 slap_schema.si_ad_contextCSN );
2756 if ( a->a_nvals != a->a_vals ) {
2757 ber_bvarray_free( a->a_nvals );
2760 ber_bvarray_free( a->a_vals );
2764 attr_valadd( a, si->si_ctxcsn, si->si_ctxcsn, si->si_numcsns );
2766 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2769 return SLAP_CB_CONTINUE;
2779 static ConfigDriver sp_cf_gen;
2781 static ConfigTable spcfg[] = {
2782 { "syncprov-checkpoint", "ops> <minutes", 3, 3, 0, ARG_MAGIC|SP_CHKPT,
2783 sp_cf_gen, "( OLcfgOvAt:1.1 NAME 'olcSpCheckpoint' "
2784 "DESC 'ContextCSN checkpoint interval in ops and minutes' "
2785 "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
2786 { "syncprov-sessionlog", "ops", 2, 2, 0, ARG_INT|ARG_MAGIC|SP_SESSL,
2787 sp_cf_gen, "( OLcfgOvAt:1.2 NAME 'olcSpSessionlog' "
2788 "DESC 'Session log size in ops' "
2789 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
2790 { "syncprov-nopresent", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_NOPRES,
2791 sp_cf_gen, "( OLcfgOvAt:1.3 NAME 'olcSpNoPresent' "
2792 "DESC 'Omit Present phase processing' "
2793 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2794 { "syncprov-reloadhint", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_USEHINT,
2795 sp_cf_gen, "( OLcfgOvAt:1.4 NAME 'olcSpReloadHint' "
2796 "DESC 'Observe Reload Hint in Request control' "
2797 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2798 { NULL, NULL, 0, 0, 0, ARG_IGNORED }
2801 static ConfigOCs spocs[] = {
2802 { "( OLcfgOvOc:1.1 "
2803 "NAME 'olcSyncProvConfig' "
2804 "DESC 'SyncRepl Provider configuration' "
2805 "SUP olcOverlayConfig "
2806 "MAY ( olcSpCheckpoint "
2807 "$ olcSpSessionlog "
2809 "$ olcSpReloadHint "
2811 Cft_Overlay, spcfg },
2816 sp_cf_gen(ConfigArgs *c)
2818 slap_overinst *on = (slap_overinst *)c->bi;
2819 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2822 if ( c->op == SLAP_CONFIG_EMIT ) {
2823 switch ( c->type ) {
2825 if ( si->si_chkops || si->si_chktime ) {
2827 /* we assume si_chktime is a multiple of 60
2828 * because the parsed value was originally
2829 * multiplied by 60 */
2830 bv.bv_len = snprintf( c->cr_msg, sizeof( c->cr_msg ),
2831 "%d %d", si->si_chkops, si->si_chktime/60 );
2832 if ( bv.bv_len >= sizeof( c->cr_msg ) ) {
2835 bv.bv_val = c->cr_msg;
2836 value_add_one( &c->rvalue_vals, &bv );
2843 if ( si->si_logs ) {
2844 c->value_int = si->si_logs->sl_size;
2850 if ( si->si_nopres ) {
2857 if ( si->si_usehint ) {
2865 } else if ( c->op == LDAP_MOD_DELETE ) {
2866 switch ( c->type ) {
2873 si->si_logs->sl_size = 0;
2875 rc = LDAP_NO_SUCH_ATTRIBUTE;
2878 if ( si->si_nopres )
2881 rc = LDAP_NO_SUCH_ATTRIBUTE;
2884 if ( si->si_usehint )
2887 rc = LDAP_NO_SUCH_ATTRIBUTE;
2892 switch ( c->type ) {
2894 if ( lutil_atoi( &si->si_chkops, c->argv[1] ) != 0 ) {
2895 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint ops # \"%s\"",
2896 c->argv[0], c->argv[1] );
2897 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2898 "%s: %s\n", c->log, c->cr_msg, 0 );
2899 return ARG_BAD_CONF;
2901 if ( si->si_chkops <= 0 ) {
2902 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint ops # \"%d\"",
2903 c->argv[0], si->si_chkops );
2904 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2905 "%s: %s\n", c->log, c->cr_msg, 0 );
2906 return ARG_BAD_CONF;
2908 if ( lutil_atoi( &si->si_chktime, c->argv[2] ) != 0 ) {
2909 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint time \"%s\"",
2910 c->argv[0], c->argv[1] );
2911 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2912 "%s: %s\n", c->log, c->cr_msg, 0 );
2913 return ARG_BAD_CONF;
2915 if ( si->si_chktime <= 0 ) {
2916 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint time \"%d\"",
2917 c->argv[0], si->si_chkops );
2918 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2919 "%s: %s\n", c->log, c->cr_msg, 0 );
2920 return ARG_BAD_CONF;
2922 si->si_chktime *= 60;
2926 int size = c->value_int;
2929 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s size %d is negative",
2931 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2932 "%s: %s\n", c->log, c->cr_msg, 0 );
2933 return ARG_BAD_CONF;
2937 sl = ch_malloc( sizeof( sessionlog ) );
2939 sl->sl_head = sl->sl_tail = NULL;
2940 ldap_pvt_thread_mutex_init( &sl->sl_mutex );
2947 si->si_nopres = c->value_int;
2950 si->si_usehint = c->value_int;
2956 /* ITS#3456 we cannot run this search on the main thread, must use a
2957 * child thread in order to insure we have a big enough stack.
2964 syncprov_findcsn( ptr, FIND_MAXCSN );
2968 /* Read any existing contextCSN from the underlying db.
2969 * Then search for any entries newer than that. If no value exists,
2970 * just generate it. Cache whatever result.
2978 slap_overinst *on = (slap_overinst *) be->bd_info;
2979 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2981 Connection conn = { 0 };
2982 OperationBuffer opbuf;
2987 void *thrctx = NULL;
2989 if ( !SLAP_LASTMOD( be )) {
2990 Debug( LDAP_DEBUG_ANY,
2991 "syncprov_db_open: invalid config, lastmod must be enabled\n", 0, 0, 0 );
2995 if ( slapMode & SLAP_TOOL_MODE ) {
2999 rc = overlay_register_control( be, LDAP_CONTROL_SYNC );
3004 thrctx = ldap_pvt_thread_pool_context();
3005 connection_fake_init2( &conn, &opbuf, thrctx, 0 );
3008 op->o_dn = be->be_rootdn;
3009 op->o_ndn = be->be_rootndn;
3011 if ( SLAP_SYNC_SUBENTRY( be )) {
3012 build_new_dn( &si->si_contextdn, be->be_nsuffix,
3013 (struct berval *)&slap_ldapsync_cn_bv, NULL );
3015 si->si_contextdn = be->be_nsuffix[0];
3017 rc = overlay_entry_get_ov( op, &si->si_contextdn, NULL,
3018 slap_schema.si_ad_contextCSN, 0, &e, on );
3021 ldap_pvt_thread_t tid;
3023 a = attr_find( e->e_attrs, slap_schema.si_ad_contextCSN );
3025 ber_bvarray_dup_x( &si->si_ctxcsn, a->a_vals, NULL );
3026 si->si_numcsns = a->a_numvals;
3027 si->si_sids = slap_parse_csn_sids( si->si_ctxcsn, a->a_numvals, NULL );
3029 overlay_entry_release_ov( op, e, 0, on );
3030 if ( si->si_ctxcsn && !SLAP_DBCLEAN( be )) {
3031 op->o_req_dn = be->be_suffix[0];
3032 op->o_req_ndn = be->be_nsuffix[0];
3033 op->ors_scope = LDAP_SCOPE_SUBTREE;
3034 ldap_pvt_thread_create( &tid, 0, syncprov_db_otask, op );
3035 ldap_pvt_thread_join( tid, NULL );
3039 /* Didn't find a contextCSN, should we generate one? */
3040 if ( !si->si_ctxcsn ) {
3041 char csnbuf[ LDAP_PVT_CSNSTR_BUFSIZE ];
3044 if ( SLAP_SYNC_SHADOW( op->o_bd )) {
3045 /* If we're also a consumer, then don't generate anything.
3046 * Wait for our provider to send it to us, or for a local
3047 * modify if we have multimaster.
3051 csn.bv_val = csnbuf;
3052 csn.bv_len = sizeof( csnbuf );
3053 slap_get_csn( op, &csn, 0 );
3054 value_add_one( &si->si_ctxcsn, &csn );
3056 si->si_sids = ch_malloc( sizeof(int) );
3057 si->si_sids[0] = slap_serverID;
3059 /* make sure we do a checkpoint on close */
3064 op->o_bd->bd_info = (BackendInfo *)on;
3068 /* Write the current contextCSN into the underlying db.
3076 slap_overinst *on = (slap_overinst *) be->bd_info;
3077 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3078 #ifdef SLAP_CONFIG_DELETE
3079 syncops *so, *sonext;
3080 #endif /* SLAP_CONFIG_DELETE */
3082 if ( slapMode & SLAP_TOOL_MODE ) {
3085 if ( si->si_numops ) {
3086 Connection conn = {0};
3087 OperationBuffer opbuf;
3091 thrctx = ldap_pvt_thread_pool_context();
3092 connection_fake_init2( &conn, &opbuf, thrctx, 0 );
3095 op->o_dn = be->be_rootdn;
3096 op->o_ndn = be->be_rootndn;
3097 syncprov_checkpoint( op, on );
3100 #ifdef SLAP_CONFIG_DELETE
3101 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
3102 for ( so=si->si_ops, sonext=so; so; so=sonext ) {
3103 SlapReply rs = {REP_RESULT};
3104 rs.sr_err = LDAP_UNAVAILABLE;
3105 send_ldap_result( so->s_op, &rs );
3107 syncprov_drop_psearch( so, 0);
3110 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
3111 overlay_unregister_control( be, LDAP_CONTROL_SYNC );
3112 #endif /* SLAP_CONFIG_DELETE */
3123 slap_overinst *on = (slap_overinst *)be->bd_info;
3124 syncprov_info_t *si;
3126 if ( SLAP_ISGLOBALOVERLAY( be ) ) {
3127 Debug( LDAP_DEBUG_ANY,
3128 "syncprov must be instantiated within a database.\n",
3133 si = ch_calloc(1, sizeof(syncprov_info_t));
3134 on->on_bi.bi_private = si;
3135 ldap_pvt_thread_rdwr_init( &si->si_csn_rwlock );
3136 ldap_pvt_thread_mutex_init( &si->si_ops_mutex );
3137 ldap_pvt_thread_mutex_init( &si->si_mods_mutex );
3138 ldap_pvt_thread_mutex_init( &si->si_resp_mutex );
3140 csn_anlist[0].an_desc = slap_schema.si_ad_entryCSN;
3141 csn_anlist[0].an_name = slap_schema.si_ad_entryCSN->ad_cname;
3142 csn_anlist[1].an_desc = slap_schema.si_ad_entryUUID;
3143 csn_anlist[1].an_name = slap_schema.si_ad_entryUUID->ad_cname;
3145 uuid_anlist[0].an_desc = slap_schema.si_ad_entryUUID;
3146 uuid_anlist[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
3152 syncprov_db_destroy(
3157 slap_overinst *on = (slap_overinst *)be->bd_info;
3158 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3161 if ( si->si_logs ) {
3162 slog_entry *se = si->si_logs->sl_head;
3165 slog_entry *se_next = se->se_next;
3170 ldap_pvt_thread_mutex_destroy(&si->si_logs->sl_mutex);
3171 ch_free( si->si_logs );
3173 if ( si->si_ctxcsn )
3174 ber_bvarray_free( si->si_ctxcsn );
3176 ch_free( si->si_sids );
3177 ldap_pvt_thread_mutex_destroy( &si->si_resp_mutex );
3178 ldap_pvt_thread_mutex_destroy( &si->si_mods_mutex );
3179 ldap_pvt_thread_mutex_destroy( &si->si_ops_mutex );
3180 ldap_pvt_thread_rdwr_destroy( &si->si_csn_rwlock );
3187 static int syncprov_parseCtrl (
3193 BerElementBuffer berbuf;
3194 BerElement *ber = (BerElement *)&berbuf;
3197 struct berval cookie = BER_BVNULL;
3201 if ( op->o_sync != SLAP_CONTROL_NONE ) {
3202 rs->sr_text = "Sync control specified multiple times";
3203 return LDAP_PROTOCOL_ERROR;
3206 if ( op->o_pagedresults != SLAP_CONTROL_NONE ) {
3207 rs->sr_text = "Sync control specified with pagedResults control";
3208 return LDAP_PROTOCOL_ERROR;
3211 if ( BER_BVISNULL( &ctrl->ldctl_value ) ) {
3212 rs->sr_text = "Sync control value is absent";
3213 return LDAP_PROTOCOL_ERROR;
3216 if ( BER_BVISEMPTY( &ctrl->ldctl_value ) ) {
3217 rs->sr_text = "Sync control value is empty";
3218 return LDAP_PROTOCOL_ERROR;
3221 /* Parse the control value
3222 * syncRequestValue ::= SEQUENCE {
3227 * refreshAndPersist (3)
3229 * cookie syncCookie OPTIONAL
3233 ber_init2( ber, &ctrl->ldctl_value, 0 );
3235 if ( (tag = ber_scanf( ber, "{i" /*}*/, &mode )) == LBER_ERROR ) {
3236 rs->sr_text = "Sync control : mode decoding error";
3237 return LDAP_PROTOCOL_ERROR;
3241 case LDAP_SYNC_REFRESH_ONLY:
3242 mode = SLAP_SYNC_REFRESH;
3244 case LDAP_SYNC_REFRESH_AND_PERSIST:
3245 mode = SLAP_SYNC_REFRESH_AND_PERSIST;
3248 rs->sr_text = "Sync control : unknown update mode";
3249 return LDAP_PROTOCOL_ERROR;
3252 tag = ber_peek_tag( ber, &len );
3254 if ( tag == LDAP_TAG_SYNC_COOKIE ) {
3255 if (( ber_scanf( ber, /*{*/ "m", &cookie )) == LBER_ERROR ) {
3256 rs->sr_text = "Sync control : cookie decoding error";
3257 return LDAP_PROTOCOL_ERROR;
3259 tag = ber_peek_tag( ber, &len );
3261 if ( tag == LDAP_TAG_RELOAD_HINT ) {
3262 if (( ber_scanf( ber, /*{*/ "b", &rhint )) == LBER_ERROR ) {
3263 rs->sr_text = "Sync control : rhint decoding error";
3264 return LDAP_PROTOCOL_ERROR;
3267 if (( ber_scanf( ber, /*{*/ "}")) == LBER_ERROR ) {
3268 rs->sr_text = "Sync control : decoding error";
3269 return LDAP_PROTOCOL_ERROR;
3271 sr = op->o_tmpcalloc( 1, sizeof(struct sync_control), op->o_tmpmemctx );
3272 sr->sr_rhint = rhint;
3273 if (!BER_BVISNULL(&cookie)) {
3274 ber_dupbv_x( &sr->sr_state.octet_str, &cookie, op->o_tmpmemctx );
3275 /* If parse fails, pretend no cookie was sent */
3276 if ( slap_parse_sync_cookie( &sr->sr_state, op->o_tmpmemctx ) ||
3277 sr->sr_state.rid == -1 ) {
3278 if ( sr->sr_state.ctxcsn ) {
3279 ber_bvarray_free_x( sr->sr_state.ctxcsn, op->o_tmpmemctx );
3280 sr->sr_state.ctxcsn = NULL;
3282 sr->sr_state.numcsns = 0;
3286 op->o_controls[slap_cids.sc_LDAPsync] = sr;
3288 op->o_sync = ctrl->ldctl_iscritical
3289 ? SLAP_CONTROL_CRITICAL
3290 : SLAP_CONTROL_NONCRITICAL;
3292 op->o_sync_mode |= mode; /* o_sync_mode shares o_sync */
3294 return LDAP_SUCCESS;
3297 /* This overlay is set up for dynamic loading via moduleload. For static
3298 * configuration, you'll need to arrange for the slap_overinst to be
3299 * initialized and registered by some other function inside slapd.
3302 static slap_overinst syncprov;
3305 syncprov_initialize()
3309 rc = register_supported_control( LDAP_CONTROL_SYNC,
3310 SLAP_CTRL_SEARCH, NULL,
3311 syncprov_parseCtrl, &slap_cids.sc_LDAPsync );
3312 if ( rc != LDAP_SUCCESS ) {
3313 Debug( LDAP_DEBUG_ANY,
3314 "syncprov_init: Failed to register control %d\n", rc, 0, 0 );
3318 syncprov.on_bi.bi_type = "syncprov";
3319 syncprov.on_bi.bi_db_init = syncprov_db_init;
3320 syncprov.on_bi.bi_db_destroy = syncprov_db_destroy;
3321 syncprov.on_bi.bi_db_open = syncprov_db_open;
3322 syncprov.on_bi.bi_db_close = syncprov_db_close;
3324 syncprov.on_bi.bi_op_abandon = syncprov_op_abandon;
3325 syncprov.on_bi.bi_op_cancel = syncprov_op_abandon;
3327 syncprov.on_bi.bi_op_add = syncprov_op_mod;
3328 syncprov.on_bi.bi_op_compare = syncprov_op_compare;
3329 syncprov.on_bi.bi_op_delete = syncprov_op_mod;
3330 syncprov.on_bi.bi_op_modify = syncprov_op_mod;
3331 syncprov.on_bi.bi_op_modrdn = syncprov_op_mod;
3332 syncprov.on_bi.bi_op_search = syncprov_op_search;
3333 syncprov.on_bi.bi_extended = syncprov_op_extended;
3334 syncprov.on_bi.bi_operational = syncprov_operational;
3336 syncprov.on_bi.bi_cf_ocs = spocs;
3338 generic_filter.f_desc = slap_schema.si_ad_objectClass;
3340 rc = config_register_schema( spcfg, spocs );
3341 if ( rc ) return rc;
3343 return overlay_register( &syncprov );
3346 #if SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC
3348 init_module( int argc, char *argv[] )
3350 return syncprov_initialize();
3352 #endif /* SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC */
3354 #endif /* defined(SLAPD_OVER_SYNCPROV) */