2 /* syncprov.c - syncrepl provider */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2004-2014 The OpenLDAP Foundation.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted only as authorized by the OpenLDAP
12 * A copy of this license is available in the file LICENSE in the
13 * top-level directory of the distribution or, alternatively, at
14 * <http://www.OpenLDAP.org/license.html>.
17 * This work was initially developed by Howard Chu for inclusion in
23 #ifdef SLAPD_OVER_SYNCPROV
25 #include <ac/string.h>
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 /* A queued result of a persistent search */
47 typedef struct syncres {
48 struct syncres *s_next;
58 /* Record of a persistent search */
59 typedef struct syncops {
60 struct syncops *s_next;
61 struct berval s_base; /* ndn of search base */
62 ID s_eid; /* entryID of search base */
63 Operation *s_op; /* search op */
66 struct berval s_filterstr;
67 int s_flags; /* search status */
68 #define PS_IS_REFRESHING 0x01
69 #define PS_IS_DETACHED 0x02
70 #define PS_WROTE_BASE 0x04
71 #define PS_FIND_BASE 0x08
72 #define PS_FIX_FILTER 0x10
73 #define PS_TASK_QUEUED 0x20
75 int s_inuse; /* reference count */
76 struct syncres *s_res;
77 struct syncres *s_restail;
78 ldap_pvt_thread_mutex_t s_mutex;
81 /* A received sync control */
82 typedef struct sync_control {
83 struct sync_cookie sr_state;
87 #if 0 /* moved back to slap.h */
88 #define o_sync o_ctrlflag[slap_cids.sc_LDAPsync]
90 /* o_sync_mode uses data bits of o_sync */
91 #define o_sync_mode o_ctrlflag[slap_cids.sc_LDAPsync]
93 #define SLAP_SYNC_NONE (LDAP_SYNC_NONE<<SLAP_CONTROL_SHIFT)
94 #define SLAP_SYNC_REFRESH (LDAP_SYNC_REFRESH_ONLY<<SLAP_CONTROL_SHIFT)
95 #define SLAP_SYNC_PERSIST (LDAP_SYNC_RESERVED<<SLAP_CONTROL_SHIFT)
96 #define SLAP_SYNC_REFRESH_AND_PERSIST (LDAP_SYNC_REFRESH_AND_PERSIST<<SLAP_CONTROL_SHIFT)
98 /* Record of which searches matched at premodify step */
99 typedef struct syncmatches {
100 struct syncmatches *sm_next;
104 /* Session log data */
105 typedef struct slog_entry {
106 struct slog_entry *se_next;
107 struct berval se_uuid;
108 struct berval se_csn;
113 typedef struct sessionlog {
121 ldap_pvt_thread_mutex_t sl_mutex;
124 /* The main state for this overlay */
125 typedef struct syncprov_info_t {
127 struct berval si_contextdn;
128 BerVarray si_ctxcsn; /* ldapsync context */
131 int si_chkops; /* checkpointing info */
133 int si_numops; /* number of ops since last checkpoint */
134 int si_nopres; /* Skip present phase */
135 int si_usehint; /* use reload hint */
136 int si_active; /* True if there are active mods */
137 int si_dirty; /* True if the context is dirty, i.e changes
138 * have been made without updating the csn. */
139 time_t si_chklast; /* time of last checkpoint */
140 Avlnode *si_mods; /* entries being modified */
142 ldap_pvt_thread_rdwr_t si_csn_rwlock;
143 ldap_pvt_thread_mutex_t si_ops_mutex;
144 ldap_pvt_thread_mutex_t si_mods_mutex;
145 ldap_pvt_thread_mutex_t si_resp_mutex;
148 typedef struct opcookie {
150 syncmatches *smatches;
153 struct berval sdn; /* DN of entry, for deletes */
155 struct berval suuid; /* UUID of entry */
156 struct berval sctxcsn;
157 short osid; /* sid of op csn */
158 short rsid; /* sid of relay */
159 short sreference; /* Is the entry a reference? */
162 typedef struct mutexint {
163 ldap_pvt_thread_mutex_t mi_mutex;
167 typedef struct fbase_cookie {
168 struct berval *fdn; /* DN of a modified entry, for scope testing */
169 syncops *fss; /* persistent search we're testing against */
170 int fbase; /* if TRUE we found the search base and it's still valid */
171 int fscope; /* if TRUE then fdn is within the psearch scope */
174 static AttributeName csn_anlist[3];
175 static AttributeName uuid_anlist[2];
177 /* Build a LDAPsync intermediate state control */
183 int entry_sync_state,
187 struct berval *cookie )
192 BerElementBuffer berbuf;
193 BerElement *ber = (BerElement *)&berbuf;
196 struct berval entryuuid_bv = BER_BVNULL;
198 ber_init2( ber, 0, LBER_USE_DER );
199 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &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 ret = ber_flatten2( ber, &bv, 0 );
221 cp = op->o_tmpalloc( sizeof( LDAPControl ) + bv.bv_len, op->o_tmpmemctx );
222 cp->ldctl_oid = LDAP_CONTROL_SYNC_STATE;
223 cp->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
224 cp->ldctl_value.bv_val = (char *)&cp[1];
225 cp->ldctl_value.bv_len = bv.bv_len;
226 AC_MEMCPY( cp->ldctl_value.bv_val, bv.bv_val, bv.bv_len );
227 ctrls[num_ctrls] = cp;
232 Debug( LDAP_DEBUG_TRACE,
233 "slap_build_sync_ctrl: ber_flatten2 failed (%d)\n",
235 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
242 /* Build a LDAPsync final state control */
250 struct berval *cookie,
254 BerElementBuffer berbuf;
255 BerElement *ber = (BerElement *)&berbuf;
259 ber_init2( ber, NULL, LBER_USE_DER );
260 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
262 ber_printf( ber, "{" );
263 if ( send_cookie && cookie ) {
264 ber_printf( ber, "O", cookie );
266 if ( refreshDeletes == LDAP_SYNC_REFRESH_DELETES ) {
267 ber_printf( ber, "b", refreshDeletes );
269 ber_printf( ber, "N}" );
271 ret = ber_flatten2( ber, &bv, 0 );
273 cp = op->o_tmpalloc( sizeof( LDAPControl ) + bv.bv_len, op->o_tmpmemctx );
274 cp->ldctl_oid = LDAP_CONTROL_SYNC_DONE;
275 cp->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
276 cp->ldctl_value.bv_val = (char *)&cp[1];
277 cp->ldctl_value.bv_len = bv.bv_len;
278 AC_MEMCPY( cp->ldctl_value.bv_val, bv.bv_val, bv.bv_len );
279 ctrls[num_ctrls] = cp;
285 Debug( LDAP_DEBUG_TRACE,
286 "syncprov_done_ctrl: ber_flatten2 failed (%d)\n",
288 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
300 struct berval *cookie,
305 BerElementBuffer berbuf;
306 BerElement *ber = (BerElement *)&berbuf;
307 struct berval rspdata;
311 ber_init2( ber, NULL, LBER_USE_DER );
312 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
316 case LDAP_TAG_SYNC_NEW_COOKIE:
317 ber_printf( ber, "tO", type, cookie );
319 case LDAP_TAG_SYNC_REFRESH_DELETE:
320 case LDAP_TAG_SYNC_REFRESH_PRESENT:
321 ber_printf( ber, "t{", type );
323 ber_printf( ber, "O", cookie );
325 if ( refreshDone == 0 ) {
326 ber_printf( ber, "b", refreshDone );
328 ber_printf( ber, "N}" );
330 case LDAP_TAG_SYNC_ID_SET:
331 ber_printf( ber, "t{", type );
333 ber_printf( ber, "O", cookie );
335 if ( refreshDeletes == 1 ) {
336 ber_printf( ber, "b", refreshDeletes );
338 ber_printf( ber, "[W]", syncUUIDs );
339 ber_printf( ber, "N}" );
342 Debug( LDAP_DEBUG_TRACE,
343 "syncprov_sendinfo: invalid syncinfo type (%d)\n",
349 ret = ber_flatten2( ber, &rspdata, 0 );
352 Debug( LDAP_DEBUG_TRACE,
353 "syncprov_sendinfo: ber_flatten2 failed (%d)\n",
355 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
359 rs->sr_rspoid = LDAP_SYNC_INFO;
360 rs->sr_rspdata = &rspdata;
361 send_ldap_intermediate( op, rs );
362 rs->sr_rspdata = NULL;
368 /* Find a modtarget in an AVL tree */
370 sp_avl_cmp( const void *c1, const void *c2 )
372 const modtarget *m1, *m2;
376 rc = m1->mt_dn.bv_len - m2->mt_dn.bv_len;
379 return ber_bvcmp( &m1->mt_dn, &m2->mt_dn );
382 /* syncprov_findbase:
383 * finds the true DN of the base of a search (with alias dereferencing) and
384 * checks to make sure the base entry doesn't get replaced with a different
385 * entry (e.g., swapping trees via ModDN, or retargeting an alias). If a
386 * change is detected, any persistent search on this base must be terminated /
388 * On the first call, we just save the DN and entryID. On subsequent calls
389 * we compare the DN and entryID with the saved values.
392 findbase_cb( Operation *op, SlapReply *rs )
394 slap_callback *sc = op->o_callback;
396 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
397 fbase_cookie *fc = sc->sc_private;
399 /* If no entryID, we're looking for the first time.
400 * Just store whatever we got.
402 if ( fc->fss->s_eid == NOID ) {
404 fc->fss->s_eid = rs->sr_entry->e_id;
405 ber_dupbv( &fc->fss->s_base, &rs->sr_entry->e_nname );
407 } else if ( rs->sr_entry->e_id == fc->fss->s_eid &&
408 dn_match( &rs->sr_entry->e_nname, &fc->fss->s_base )) {
410 /* OK, the DN is the same and the entryID is the same. */
414 if ( rs->sr_err != LDAP_SUCCESS ) {
415 Debug( LDAP_DEBUG_ANY, "findbase failed! %d\n", rs->sr_err,0,0 );
420 static Filter generic_filter = { LDAP_FILTER_PRESENT, { 0 }, NULL };
421 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
424 syncprov_findbase( Operation *op, fbase_cookie *fc )
426 /* Use basic parameters from syncrepl search, but use
427 * current op's threadctx / tmpmemctx
429 ldap_pvt_thread_mutex_lock( &fc->fss->s_mutex );
430 if ( fc->fss->s_flags & PS_FIND_BASE ) {
431 slap_callback cb = {0};
433 SlapReply frs = { REP_RESULT };
436 fc->fss->s_flags ^= PS_FIND_BASE;
437 ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
439 fop = *fc->fss->s_op;
441 fop.o_bd = fop.o_bd->bd_self;
442 fop.o_hdr = op->o_hdr;
443 fop.o_time = op->o_time;
444 fop.o_tincr = op->o_tincr;
445 fop.o_extra = op->o_extra;
447 cb.sc_response = findbase_cb;
450 fop.o_sync_mode = 0; /* turn off sync mode */
451 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
452 fop.o_callback = &cb;
453 fop.o_tag = LDAP_REQ_SEARCH;
454 fop.ors_scope = LDAP_SCOPE_BASE;
455 fop.ors_limit = NULL;
457 fop.ors_tlimit = SLAP_NO_LIMIT;
458 fop.ors_attrs = slap_anlist_no_attrs;
459 fop.ors_attrsonly = 1;
460 fop.ors_filter = &generic_filter;
461 fop.ors_filterstr = generic_filterstr;
463 rc = fop.o_bd->be_search( &fop, &frs );
465 ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
469 /* After the first call, see if the fdn resides in the scope */
470 if ( fc->fbase == 1 ) {
471 switch ( fc->fss->s_op->ors_scope ) {
472 case LDAP_SCOPE_BASE:
473 fc->fscope = dn_match( fc->fdn, &fc->fss->s_base );
475 case LDAP_SCOPE_ONELEVEL: {
477 dnParent( fc->fdn, &pdn );
478 fc->fscope = dn_match( &pdn, &fc->fss->s_base );
480 case LDAP_SCOPE_SUBTREE:
481 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base );
483 case LDAP_SCOPE_SUBORDINATE:
484 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base ) &&
485 !dn_match( fc->fdn, &fc->fss->s_base );
493 /* If entryID has changed, then the base of this search has
494 * changed. Invalidate the psearch.
496 return LDAP_NO_SUCH_OBJECT;
500 * This function has three different purposes, but they all use a search
501 * that filters on entryCSN so they're combined here.
502 * 1: at startup time, after a contextCSN has been read from the database,
503 * we search for all entries with CSN >= contextCSN in case the contextCSN
504 * was not checkpointed at the previous shutdown.
506 * 2: when the current contextCSN is known and we have a sync cookie, we search
507 * for one entry with CSN = the cookie CSN. If not found, try <= cookie CSN.
508 * If an entry is found, the cookie CSN is valid, otherwise it is stale.
510 * 3: during a refresh phase, we search for all entries with CSN <= the cookie
511 * CSN, and generate Present records for them. We always collect this result
512 * in SyncID sets, even if there's only one match.
514 typedef enum find_csn_t {
521 findmax_cb( Operation *op, SlapReply *rs )
523 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
524 struct berval *maxcsn = op->o_callback->sc_private;
525 Attribute *a = attr_find( rs->sr_entry->e_attrs,
526 slap_schema.si_ad_entryCSN );
528 if ( a && ber_bvcmp( &a->a_vals[0], maxcsn ) > 0 &&
529 slap_parse_csn_sid( &a->a_vals[0] ) == slap_serverID ) {
530 maxcsn->bv_len = a->a_vals[0].bv_len;
531 strcpy( maxcsn->bv_val, a->a_vals[0].bv_val );
538 findcsn_cb( Operation *op, SlapReply *rs )
540 slap_callback *sc = op->o_callback;
542 /* We just want to know that at least one exists, so it's OK if
543 * we exceed the unchecked limit.
545 if ( rs->sr_err == LDAP_ADMINLIMIT_EXCEEDED ||
546 (rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS )) {
547 sc->sc_private = (void *)1;
552 /* Build a list of entryUUIDs for sending in a SyncID set */
556 typedef struct fpres_cookie {
563 findpres_cb( Operation *op, SlapReply *rs )
565 slap_callback *sc = op->o_callback;
566 fpres_cookie *pc = sc->sc_private;
568 int ret = SLAP_CB_CONTINUE;
570 switch ( rs->sr_type ) {
572 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
574 pc->uuids[pc->num].bv_val = pc->last;
575 AC_MEMCPY( pc->uuids[pc->num].bv_val, a->a_nvals[0].bv_val,
576 pc->uuids[pc->num].bv_len );
578 pc->last = pc->uuids[pc->num].bv_val;
579 pc->uuids[pc->num].bv_val = NULL;
582 if ( pc->num != SLAP_SYNCUUID_SET_SIZE )
588 ret = syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET, NULL,
590 pc->uuids[pc->num].bv_val = pc->last;
592 pc->last = pc->uuids[0].bv_val;
602 syncprov_findcsn( Operation *op, find_csn_t mode, struct berval *csn )
604 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
605 syncprov_info_t *si = on->on_bi.bi_private;
607 slap_callback cb = {0};
609 SlapReply frs = { REP_RESULT };
610 char buf[LDAP_PVT_CSNSTR_BUFSIZE + STRLENOF("(entryCSN<=)")];
611 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
612 struct berval maxcsn;
614 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
615 fpres_cookie pcookie;
616 sync_control *srs = NULL;
617 struct slap_limits_set fc_limits;
618 int i, rc = LDAP_SUCCESS, findcsn_retry = 1;
621 if ( mode != FIND_MAXCSN ) {
622 srs = op->o_controls[slap_cids.sc_LDAPsync];
626 fop.o_sync_mode &= SLAP_CONTROL_MASK; /* turn off sync_mode */
627 /* We want pure entries, not referrals */
628 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
631 cf.f_av_desc = slap_schema.si_ad_entryCSN;
632 BER_BVZERO( &cf.f_av_value );
635 fop.o_callback = &cb;
636 fop.ors_limit = NULL;
637 fop.ors_tlimit = SLAP_NO_LIMIT;
638 fop.ors_filter = &cf;
639 fop.ors_filterstr.bv_val = buf;
644 cf.f_choice = LDAP_FILTER_GE;
645 /* If there are multiple CSNs, use the one with our serverID */
646 for ( i=0; i<si->si_numcsns; i++) {
647 if ( slap_serverID == si->si_sids[i] ) {
652 if ( i == si->si_numcsns ) {
653 /* No match: this is multimaster, and none of the content in the DB
654 * originated locally. Treat like no CSN.
656 return LDAP_NO_SUCH_OBJECT;
658 cf.f_av_value = si->si_ctxcsn[maxid];
659 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
660 "(entryCSN>=%s)", cf.f_av_value.bv_val );
661 if ( fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
664 fop.ors_attrsonly = 0;
665 fop.ors_attrs = csn_anlist;
666 fop.ors_slimit = SLAP_NO_LIMIT;
667 cb.sc_private = &maxcsn;
668 cb.sc_response = findmax_cb;
669 strcpy( cbuf, cf.f_av_value.bv_val );
670 maxcsn.bv_val = cbuf;
671 maxcsn.bv_len = cf.f_av_value.bv_len;
674 if ( BER_BVISEMPTY( &cf.f_av_value )) {
675 cf.f_av_value = *csn;
677 fop.o_dn = op->o_bd->be_rootdn;
678 fop.o_ndn = op->o_bd->be_rootndn;
679 fop.o_req_dn = op->o_bd->be_suffix[0];
680 fop.o_req_ndn = op->o_bd->be_nsuffix[0];
681 /* Look for exact match the first time */
682 if ( findcsn_retry ) {
683 cf.f_choice = LDAP_FILTER_EQUALITY;
684 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
685 "(entryCSN=%s)", cf.f_av_value.bv_val );
686 /* On retry, look for <= */
688 cf.f_choice = LDAP_FILTER_LE;
689 fop.ors_limit = &fc_limits;
690 memset( &fc_limits, 0, sizeof( fc_limits ));
691 fc_limits.lms_s_unchecked = 1;
692 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
693 "(entryCSN<=%s)", cf.f_av_value.bv_val );
695 if ( fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
698 fop.ors_attrsonly = 1;
699 fop.ors_attrs = slap_anlist_no_attrs;
701 cb.sc_private = NULL;
702 cb.sc_response = findcsn_cb;
705 fop.ors_filter = op->ors_filter;
706 fop.ors_filterstr = op->ors_filterstr;
707 fop.ors_attrsonly = 0;
708 fop.ors_attrs = uuid_anlist;
709 fop.ors_slimit = SLAP_NO_LIMIT;
710 cb.sc_private = &pcookie;
711 cb.sc_response = findpres_cb;
714 /* preallocate storage for a full set */
715 pcookie.uuids = op->o_tmpalloc( (SLAP_SYNCUUID_SET_SIZE+1) *
716 sizeof(struct berval) + SLAP_SYNCUUID_SET_SIZE * UUID_LEN,
718 pcookie.last = (char *)(pcookie.uuids + SLAP_SYNCUUID_SET_SIZE+1);
719 pcookie.uuids[0].bv_val = pcookie.last;
720 pcookie.uuids[0].bv_len = UUID_LEN;
721 for (i=1; i<SLAP_SYNCUUID_SET_SIZE; i++) {
722 pcookie.uuids[i].bv_val = pcookie.uuids[i-1].bv_val + UUID_LEN;
723 pcookie.uuids[i].bv_len = UUID_LEN;
728 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
729 fop.o_bd->be_search( &fop, &frs );
730 fop.o_bd->bd_info = (BackendInfo *)on;
734 if ( ber_bvcmp( &si->si_ctxcsn[maxid], &maxcsn )) {
736 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
737 assert( !syn->ssyn_validate( syn, &maxcsn ));
739 ber_bvreplace( &si->si_ctxcsn[maxid], &maxcsn );
740 si->si_numops++; /* ensure a checkpoint */
744 /* If matching CSN was not found, invalidate the context. */
745 if ( !cb.sc_private ) {
746 /* If we didn't find an exact match, then try for <= */
747 if ( findcsn_retry ) {
749 rs_reinit( &frs, REP_RESULT );
752 rc = LDAP_NO_SUCH_OBJECT;
756 op->o_tmpfree( pcookie.uuids, op->o_tmpmemctx );
763 /* Should find a place to cache these */
764 static mutexint *get_mutexint()
766 mutexint *mi = ch_malloc( sizeof( mutexint ));
767 ldap_pvt_thread_mutex_init( &mi->mi_mutex );
772 static void inc_mutexint( mutexint *mi )
774 ldap_pvt_thread_mutex_lock( &mi->mi_mutex );
776 ldap_pvt_thread_mutex_unlock( &mi->mi_mutex );
779 /* return resulting counter */
780 static int dec_mutexint( mutexint *mi )
783 ldap_pvt_thread_mutex_lock( &mi->mi_mutex );
785 ldap_pvt_thread_mutex_unlock( &mi->mi_mutex );
787 ldap_pvt_thread_mutex_destroy( &mi->mi_mutex );
794 syncprov_free_syncop( syncops *so )
796 syncres *sr, *srnext;
797 GroupAssertion *ga, *gnext;
799 ldap_pvt_thread_mutex_lock( &so->s_mutex );
800 /* already being freed, or still in use */
801 if ( !so->s_inuse || --so->s_inuse > 0 ) {
802 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
805 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
806 if ( so->s_flags & PS_IS_DETACHED ) {
807 filter_free( so->s_op->ors_filter );
808 for ( ga = so->s_op->o_groups; ga; ga=gnext ) {
814 ch_free( so->s_base.bv_val );
815 for ( sr=so->s_res; sr; sr=srnext ) {
818 if ( !dec_mutexint( sr->s_e->e_private )) {
819 sr->s_e->e_private = NULL;
820 entry_free( sr->s_e );
825 ldap_pvt_thread_mutex_destroy( &so->s_mutex );
829 /* Send a persistent search response */
831 syncprov_sendresp( Operation *op, opcookie *opc, syncops *so, int mode )
833 SlapReply rs = { REP_SEARCH };
834 struct berval cookie, csns[2];
836 Attribute a_uuid = {0};
838 if ( so->s_op->o_abandon )
839 return SLAPD_ABANDON;
841 rs.sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2, op->o_tmpmemctx );
842 rs.sr_ctrls[1] = NULL;
843 rs.sr_flags = REP_CTRLS_MUSTBEFREED;
844 csns[0] = opc->sctxcsn;
845 BER_BVZERO( &csns[1] );
846 slap_compose_sync_cookie( op, &cookie, csns, so->s_rid, slap_serverID ? slap_serverID : -1 );
849 if ( so->s_sid > 0 ) {
850 Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: to=%03x, cookie=%s\n",
851 so->s_sid, cookie.bv_val, 0 );
853 Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: cookie=%s\n",
854 cookie.bv_val, 0, 0 );
858 e_uuid.e_attrs = &a_uuid;
859 a_uuid.a_desc = slap_schema.si_ad_entryUUID;
860 a_uuid.a_nvals = &opc->suuid;
861 rs.sr_err = syncprov_state_ctrl( op, &rs, &e_uuid,
862 mode, rs.sr_ctrls, 0, 1, &cookie );
863 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
865 rs.sr_entry = &e_uuid;
866 if ( mode == LDAP_SYNC_ADD || mode == LDAP_SYNC_MODIFY ) {
868 e_uuid.e_private = NULL;
873 if ( opc->sreference && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
874 rs.sr_ref = get_entry_referrals( op, rs.sr_entry );
875 rs.sr_err = send_search_reference( op, &rs );
876 ber_bvarray_free( rs.sr_ref );
880 case LDAP_SYNC_MODIFY:
881 rs.sr_attrs = op->ors_attrs;
882 rs.sr_err = send_search_entry( op, &rs );
884 case LDAP_SYNC_DELETE:
885 e_uuid.e_attrs = NULL;
886 e_uuid.e_name = opc->sdn;
887 e_uuid.e_nname = opc->sndn;
888 if ( opc->sreference && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
889 struct berval bv = BER_BVNULL;
891 rs.sr_err = send_search_reference( op, &rs );
893 rs.sr_err = send_search_entry( op, &rs );
903 syncprov_qstart( syncops *so );
905 /* Play back queued responses */
907 syncprov_qplay( Operation *op, syncops *so )
909 slap_overinst *on = LDAP_SLIST_FIRST(&so->s_op->o_extra)->oe_key;
917 ldap_pvt_thread_mutex_lock( &so->s_mutex );
919 /* Exit loop with mutex held */
922 so->s_res = sr->s_next;
924 so->s_restail = NULL;
925 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
927 if ( !so->s_op->o_abandon ) {
929 if ( sr->s_mode == LDAP_SYNC_NEW_COOKIE ) {
930 SlapReply rs = { REP_INTERMEDIATE };
932 rc = syncprov_sendinfo( op, &rs, LDAP_TAG_SYNC_NEW_COOKIE,
933 &sr->s_csn, 0, NULL, 0 );
936 opc.sndn = sr->s_ndn;
937 opc.suuid = sr->s_uuid;
938 opc.sctxcsn = sr->s_csn;
939 opc.sreference = sr->s_isreference;
942 rc = syncprov_sendresp( op, &opc, so, sr->s_mode );
947 if ( !dec_mutexint( sr->s_e->e_private )) {
948 sr->s_e->e_private = NULL;
949 entry_free ( sr->s_e );
954 if ( so->s_op->o_abandon )
957 /* Exit loop with mutex held */
958 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) );
993 op->o_sync = SLAP_CONTROL_IGNORED;
995 *op->o_hdr = *so->s_op->o_hdr;
997 op->o_tmpmemctx = slap_sl_mem_create(SLAP_SLAB_SIZE, SLAP_SLAB_STACK, ctx, 1);
998 op->o_tmpmfuncs = &slap_sl_mfuncs;
999 op->o_threadctx = ctx;
1001 /* syncprov_qplay expects a fake db */
1002 be = *so->s_op->o_bd;
1003 be.be_flags |= SLAP_DBFLAG_OVERLAY;
1005 LDAP_SLIST_FIRST(&op->o_extra) = NULL;
1006 op->o_callback = NULL;
1008 rc = syncprov_qplay( op, so );
1010 /* decrement use count... */
1011 syncprov_free_syncop( so );
1016 /* Start the task to play back queued psearch responses */
1018 syncprov_qstart( syncops *so )
1020 so->s_flags |= PS_TASK_QUEUED;
1022 ldap_pvt_thread_pool_submit( &connection_pool,
1023 syncprov_qtask, so );
1026 /* Queue a persistent search response */
1028 syncprov_qresp( opcookie *opc, syncops *so, int mode )
1032 struct berval cookie = opc->sctxcsn;
1034 if ( mode == LDAP_SYNC_NEW_COOKIE ) {
1035 syncprov_info_t *si = opc->son->on_bi.bi_private;
1037 slap_compose_sync_cookie( NULL, &cookie, si->si_ctxcsn,
1038 so->s_rid, slap_serverID ? slap_serverID : -1);
1041 srsize = sizeof(syncres) + opc->suuid.bv_len + 1 +
1042 opc->sdn.bv_len + 1 + opc->sndn.bv_len + 1;
1043 if ( cookie.bv_len )
1044 srsize += cookie.bv_len + 1;
1045 sr = ch_malloc( srsize );
1048 /* bump refcount on this entry */
1050 inc_mutexint( opc->se->e_private );
1051 sr->s_dn.bv_val = (char *)(sr + 1);
1052 sr->s_dn.bv_len = opc->sdn.bv_len;
1054 sr->s_isreference = opc->sreference;
1055 sr->s_ndn.bv_val = lutil_strcopy( sr->s_dn.bv_val,
1056 opc->sdn.bv_val ) + 1;
1057 sr->s_ndn.bv_len = opc->sndn.bv_len;
1058 sr->s_uuid.bv_val = lutil_strcopy( sr->s_ndn.bv_val,
1059 opc->sndn.bv_val ) + 1;
1060 sr->s_uuid.bv_len = opc->suuid.bv_len;
1061 AC_MEMCPY( sr->s_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1062 if ( cookie.bv_len ) {
1063 sr->s_csn.bv_val = sr->s_uuid.bv_val + sr->s_uuid.bv_len + 1;
1064 strcpy( sr->s_csn.bv_val, cookie.bv_val );
1066 sr->s_csn.bv_val = NULL;
1068 sr->s_csn.bv_len = cookie.bv_len;
1070 if ( mode == LDAP_SYNC_NEW_COOKIE && cookie.bv_val ) {
1071 ch_free( cookie.bv_val );
1074 ldap_pvt_thread_mutex_lock( &so->s_mutex );
1078 so->s_restail->s_next = sr;
1082 /* If the base of the psearch was modified, check it next time round */
1083 if ( so->s_flags & PS_WROTE_BASE ) {
1084 so->s_flags ^= PS_WROTE_BASE;
1085 so->s_flags |= PS_FIND_BASE;
1087 if (( so->s_flags & (PS_IS_DETACHED|PS_TASK_QUEUED)) == PS_IS_DETACHED ) {
1088 syncprov_qstart( so );
1090 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
1091 return LDAP_SUCCESS;
1095 syncprov_drop_psearch( syncops *so, int lock )
1097 if ( so->s_flags & PS_IS_DETACHED ) {
1099 ldap_pvt_thread_mutex_lock( &so->s_op->o_conn->c_mutex );
1100 so->s_op->o_conn->c_n_ops_executing--;
1101 so->s_op->o_conn->c_n_ops_completed++;
1102 LDAP_STAILQ_REMOVE( &so->s_op->o_conn->c_ops, so->s_op, Operation,
1105 ldap_pvt_thread_mutex_unlock( &so->s_op->o_conn->c_mutex );
1107 syncprov_free_syncop( so );
1113 syncprov_ab_cleanup( Operation *op, SlapReply *rs )
1115 slap_callback *sc = op->o_callback;
1116 op->o_callback = sc->sc_next;
1117 syncprov_drop_psearch( op->o_callback->sc_private, 0 );
1118 op->o_tmpfree( sc, op->o_tmpmemctx );
1123 syncprov_op_abandon( Operation *op, SlapReply *rs )
1125 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1126 syncprov_info_t *si = on->on_bi.bi_private;
1127 syncops *so, *soprev;
1129 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1130 for ( so=si->si_ops, soprev = (syncops *)&si->si_ops; so;
1131 soprev=so, so=so->s_next ) {
1132 if ( so->s_op->o_connid == op->o_connid &&
1133 so->s_op->o_msgid == op->orn_msgid ) {
1134 so->s_op->o_abandon = 1;
1135 soprev->s_next = so->s_next;
1139 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1141 /* Is this really a Cancel exop? */
1142 if ( op->o_tag != LDAP_REQ_ABANDON ) {
1143 so->s_op->o_cancel = SLAP_CANCEL_ACK;
1144 rs->sr_err = LDAP_CANCELLED;
1145 send_ldap_result( so->s_op, rs );
1146 if ( so->s_flags & PS_IS_DETACHED ) {
1148 cb = op->o_tmpcalloc( 1, sizeof(slap_callback), op->o_tmpmemctx );
1149 cb->sc_cleanup = syncprov_ab_cleanup;
1150 cb->sc_next = op->o_callback;
1151 cb->sc_private = so;
1152 op->o_callback = cb;
1153 return SLAP_CB_CONTINUE;
1156 syncprov_drop_psearch( so, 0 );
1158 return SLAP_CB_CONTINUE;
1161 /* Find which persistent searches are affected by this operation */
1163 syncprov_matchops( Operation *op, opcookie *opc, int saveit )
1165 slap_overinst *on = opc->son;
1166 syncprov_info_t *si = on->on_bi.bi_private;
1169 syncops *ss, *sprev, *snext;
1173 struct berval newdn;
1175 BackendDB *b0 = op->o_bd, db;
1177 fc.fdn = &op->o_req_ndn;
1178 /* compute new DN */
1179 if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1181 if ( op->orr_nnewSup ) pdn = *op->orr_nnewSup;
1182 else dnParent( fc.fdn, &pdn );
1183 build_new_dn( &newdn, &pdn, &op->orr_nnewrdn, op->o_tmpmemctx );
1187 if ( op->o_tag != LDAP_REQ_ADD ) {
1188 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1192 rc = overlay_entry_get_ov( op, fc.fdn, NULL, NULL, 0, &e, on );
1193 /* If we're sending responses now, make a copy and unlock the DB */
1194 if ( e && !saveit ) {
1196 opc->se = entry_dup( e );
1197 opc->se->e_private = get_mutexint();
1199 overlay_entry_release_ov( op, e, 0, on );
1210 opc->se = entry_dup( e );
1211 opc->se->e_private = get_mutexint();
1217 if ( saveit || op->o_tag == LDAP_REQ_ADD ) {
1218 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1219 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1220 opc->sreference = is_entry_referral( e );
1221 a = attr_find( e->e_attrs, slap_schema.si_ad_entryUUID );
1223 ber_dupbv_x( &opc->suuid, &a->a_nvals[0], op->o_tmpmemctx );
1224 } else if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1225 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1226 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1227 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1228 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1231 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1232 for (ss = si->si_ops, sprev = (syncops *)&si->si_ops; ss;
1233 sprev = ss, ss=snext)
1241 if ( ss->s_op->o_abandon )
1244 /* Don't send ops back to the originator */
1245 if ( opc->osid > 0 && opc->osid == ss->s_sid ) {
1246 Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping original sid %03x\n",
1251 /* Don't send ops back to the messenger */
1252 if ( opc->rsid > 0 && opc->rsid == ss->s_sid ) {
1253 Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping relayed sid %03x\n",
1263 /* If the base of the search is missing, signal a refresh */
1264 rc = syncprov_findbase( op, &fc );
1265 if ( rc != LDAP_SUCCESS ) {
1266 SlapReply rs = {REP_RESULT};
1267 send_ldap_error( ss->s_op, &rs, LDAP_SYNC_REFRESH_REQUIRED,
1268 "search base has changed" );
1269 sprev->s_next = snext;
1270 syncprov_drop_psearch( ss, 1 );
1275 /* If we're sending results now, look for this op in old matches */
1279 /* Did we modify the search base? */
1280 if ( dn_match( &op->o_req_ndn, &ss->s_base )) {
1281 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1282 ss->s_flags |= PS_WROTE_BASE;
1283 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1286 for ( sm=opc->smatches, old=(syncmatches *)&opc->smatches; sm;
1287 old=sm, sm=sm->sm_next ) {
1288 if ( sm->sm_op == ss ) {
1290 old->sm_next = sm->sm_next;
1291 op->o_tmpfree( sm, op->o_tmpmemctx );
1298 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1301 oh.oh_conn = ss->s_op->o_conn;
1302 oh.oh_connid = ss->s_op->o_connid;
1303 op2.o_bd = op->o_bd->bd_self;
1305 op2.o_extra = op->o_extra;
1306 op2.o_callback = NULL;
1307 if (ss->s_flags & PS_FIX_FILTER) {
1308 /* Skip the AND/GE clause that we stuck on in front. We
1309 would lose deletes/mods that happen during the refresh
1310 phase otherwise (ITS#6555) */
1311 op2.ors_filter = ss->s_op->ors_filter->f_and->f_next;
1313 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1314 rc = test_filter( &op2, e, op2.ors_filter );
1317 Debug( LDAP_DEBUG_TRACE, "syncprov_matchops: sid %03x fscope %d rc %d\n",
1318 ss->s_sid, fc.fscope, rc );
1320 /* check if current o_req_dn is in scope and matches filter */
1321 if ( fc.fscope && rc == LDAP_COMPARE_TRUE ) {
1323 sm = op->o_tmpalloc( sizeof(syncmatches), op->o_tmpmemctx );
1324 sm->sm_next = opc->smatches;
1326 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1328 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1331 /* if found send UPDATE else send ADD */
1332 syncprov_qresp( opc, ss,
1333 found ? LDAP_SYNC_MODIFY : LDAP_SYNC_ADD );
1335 } else if ( !saveit && found ) {
1337 syncprov_qresp( opc, ss, LDAP_SYNC_DELETE );
1338 } else if ( !saveit ) {
1339 syncprov_qresp( opc, ss, LDAP_SYNC_NEW_COOKIE );
1341 if ( !saveit && found ) {
1342 /* Decrement s_inuse, was incremented when called
1343 * with saveit == TRUE
1345 syncprov_free_syncop( ss );
1348 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1350 if ( op->o_tag != LDAP_REQ_ADD && e ) {
1351 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1355 overlay_entry_release_ov( op, e, 0, on );
1358 if ( opc->se && !saveit ) {
1359 if ( !dec_mutexint( opc->se->e_private )) {
1360 opc->se->e_private = NULL;
1361 entry_free( opc->se );
1366 op->o_tmpfree( fc.fdn->bv_val, op->o_tmpmemctx );
1372 syncprov_op_cleanup( Operation *op, SlapReply *rs )
1374 slap_callback *cb = op->o_callback;
1375 opcookie *opc = cb->sc_private;
1376 slap_overinst *on = opc->son;
1377 syncprov_info_t *si = on->on_bi.bi_private;
1378 syncmatches *sm, *snext;
1381 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1382 if ( si->si_active )
1384 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1386 for (sm = opc->smatches; sm; sm=snext) {
1387 snext = sm->sm_next;
1388 syncprov_free_syncop( sm->sm_op );
1389 op->o_tmpfree( sm, op->o_tmpmemctx );
1392 /* Remove op from lock table */
1395 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1396 mt->mt_mods = mt->mt_mods->mi_next;
1397 /* If there are more, promote the next one */
1398 if ( mt->mt_mods ) {
1399 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1401 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1402 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1403 avl_delete( &si->si_mods, mt, sp_avl_cmp );
1404 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1405 ldap_pvt_thread_mutex_destroy( &mt->mt_mutex );
1406 ch_free( mt->mt_dn.bv_val );
1410 if ( !BER_BVISNULL( &opc->suuid ))
1411 op->o_tmpfree( opc->suuid.bv_val, op->o_tmpmemctx );
1412 if ( !BER_BVISNULL( &opc->sndn ))
1413 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1414 if ( !BER_BVISNULL( &opc->sdn ))
1415 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1416 op->o_callback = cb->sc_next;
1417 op->o_tmpfree(cb, op->o_tmpmemctx);
1423 syncprov_checkpoint( Operation *op, slap_overinst *on )
1425 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
1428 SlapReply rsm = {REP_RESULT};
1429 slap_callback cb = {0};
1434 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1437 for ( i=0; i<si->si_numcsns; i++ ) {
1438 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1441 mod.sml_numvals = si->si_numcsns;
1442 mod.sml_values = si->si_ctxcsn;
1443 mod.sml_nvalues = NULL;
1444 mod.sml_desc = slap_schema.si_ad_contextCSN;
1445 mod.sml_op = LDAP_MOD_REPLACE;
1446 mod.sml_flags = SLAP_MOD_INTERNAL;
1447 mod.sml_next = NULL;
1449 cb.sc_response = slap_null_cb;
1451 opm.o_tag = LDAP_REQ_MODIFY;
1452 opm.o_callback = &cb;
1453 opm.orm_modlist = &mod;
1454 opm.orm_no_opattrs = 1;
1455 if ( SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1456 be = *on->on_info->oi_origdb;
1459 opm.o_req_dn = si->si_contextdn;
1460 opm.o_req_ndn = si->si_contextdn;
1461 bi = opm.o_bd->bd_info;
1462 opm.o_bd->bd_info = on->on_info->oi_orig;
1463 opm.o_managedsait = SLAP_CONTROL_NONCRITICAL;
1464 opm.o_no_schema_check = 1;
1465 opm.o_bd->be_modify( &opm, &rsm );
1467 if ( rsm.sr_err == LDAP_NO_SUCH_OBJECT &&
1468 SLAP_SYNC_SUBENTRY( opm.o_bd )) {
1470 char txtbuf[SLAP_TEXT_BUFLEN];
1471 size_t textlen = sizeof txtbuf;
1472 Entry *e = slap_create_context_csn_entry( opm.o_bd, NULL );
1473 rs_reinit( &rsm, REP_RESULT );
1474 slap_mods2entry( &mod, &e, 0, 1, &text, txtbuf, textlen);
1476 opm.o_bd->be_add( &opm, &rsm );
1477 if ( e == opm.ora_e )
1478 be_entry_release_w( &opm, opm.ora_e );
1480 opm.o_bd->bd_info = bi;
1482 if ( mod.sml_next != NULL ) {
1483 slap_mods_free( mod.sml_next, 1 );
1486 for ( i=0; i<si->si_numcsns; i++ ) {
1487 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1493 syncprov_add_slog( Operation *op )
1495 opcookie *opc = op->o_callback->sc_private;
1496 slap_overinst *on = opc->son;
1497 syncprov_info_t *si = on->on_bi.bi_private;
1503 if ( BER_BVISEMPTY( &op->o_csn ) ) {
1504 /* During the syncrepl refresh phase we can receive operations
1505 * without a csn. We cannot reliably determine the consumers
1506 * state with respect to such operations, so we ignore them and
1507 * wipe out anything in the log if we see them.
1509 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1510 while ( se = sl->sl_head ) {
1511 sl->sl_head = se->se_next;
1516 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1520 /* Allocate a record. UUIDs are not NUL-terminated. */
1521 se = ch_malloc( sizeof( slog_entry ) + opc->suuid.bv_len +
1522 op->o_csn.bv_len + 1 );
1524 se->se_tag = op->o_tag;
1526 se->se_uuid.bv_val = (char *)(&se[1]);
1527 AC_MEMCPY( se->se_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1528 se->se_uuid.bv_len = opc->suuid.bv_len;
1530 se->se_csn.bv_val = se->se_uuid.bv_val + opc->suuid.bv_len;
1531 AC_MEMCPY( se->se_csn.bv_val, op->o_csn.bv_val, op->o_csn.bv_len );
1532 se->se_csn.bv_val[op->o_csn.bv_len] = '\0';
1533 se->se_csn.bv_len = op->o_csn.bv_len;
1534 se->se_sid = slap_parse_csn_sid( &se->se_csn );
1536 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1537 if ( sl->sl_head ) {
1538 /* Keep the list in csn order. */
1539 if ( ber_bvcmp( &sl->sl_tail->se_csn, &se->se_csn ) <= 0 ) {
1540 sl->sl_tail->se_next = se;
1545 for ( sep = &sl->sl_head; *sep; sep = &(*sep)->se_next ) {
1546 if ( ber_bvcmp( &se->se_csn, &(*sep)->se_csn ) < 0 ) {
1556 if ( !sl->sl_mincsn ) {
1558 sl->sl_mincsn = ch_malloc( 2*sizeof( struct berval ));
1559 sl->sl_sids = ch_malloc( sizeof( int ));
1560 sl->sl_sids[0] = se->se_sid;
1561 ber_dupbv( sl->sl_mincsn, &se->se_csn );
1562 BER_BVZERO( &sl->sl_mincsn[1] );
1566 while ( sl->sl_num > sl->sl_size ) {
1569 sl->sl_head = se->se_next;
1570 for ( i=0; i<sl->sl_numcsns; i++ )
1571 if ( sl->sl_sids[i] >= se->se_sid )
1573 if ( i == sl->sl_numcsns || sl->sl_sids[i] != se->se_sid ) {
1574 slap_insert_csn_sids( (struct sync_cookie *)sl,
1575 i, se->se_sid, &se->se_csn );
1577 ber_bvreplace( &sl->sl_mincsn[i], &se->se_csn );
1582 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1586 /* Just set a flag if we found the matching entry */
1588 playlog_cb( Operation *op, SlapReply *rs )
1590 if ( rs->sr_type == REP_SEARCH ) {
1591 op->o_callback->sc_private = (void *)1;
1596 /* enter with sl->sl_mutex locked, release before returning */
1598 syncprov_playlog( Operation *op, SlapReply *rs, sessionlog *sl,
1599 sync_control *srs, BerVarray ctxcsn, int numcsns, int *sids )
1601 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1603 int i, j, ndel, num, nmods, mmods;
1604 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
1606 struct berval delcsn[2];
1608 if ( !sl->sl_num ) {
1609 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1617 uuids = op->o_tmpalloc( (num+1) * sizeof( struct berval ) +
1618 num * UUID_LEN, op->o_tmpmemctx );
1619 uuids[0].bv_val = (char *)(uuids + num + 1);
1621 delcsn[0].bv_len = 0;
1622 delcsn[0].bv_val = cbuf;
1623 BER_BVZERO(&delcsn[1]);
1625 /* Make a copy of the relevant UUIDs. Put the Deletes up front
1626 * and everything else at the end. Do this first so we can
1627 * unlock the list mutex.
1629 Debug( LDAP_DEBUG_SYNC, "srs csn %s\n",
1630 srs->sr_state.ctxcsn[0].bv_val, 0, 0 );
1631 for ( se=sl->sl_head; se; se=se->se_next ) {
1633 Debug( LDAP_DEBUG_SYNC, "log csn %s\n", se->se_csn.bv_val, 0, 0 );
1635 for ( k=0; k<srs->sr_state.numcsns; k++ ) {
1636 if ( se->se_sid == srs->sr_state.sids[k] ) {
1637 ndel = ber_bvcmp( &se->se_csn, &srs->sr_state.ctxcsn[k] );
1642 Debug( LDAP_DEBUG_SYNC, "cmp %d, too old\n", ndel, 0, 0 );
1646 for ( k=0; k<numcsns; k++ ) {
1647 if ( se->se_sid == sids[k] ) {
1648 ndel = ber_bvcmp( &se->se_csn, &ctxcsn[k] );
1653 Debug( LDAP_DEBUG_SYNC, "cmp %d, too new\n", ndel, 0, 0 );
1656 if ( se->se_tag == LDAP_REQ_DELETE ) {
1659 AC_MEMCPY( cbuf, se->se_csn.bv_val, se->se_csn.bv_len );
1660 delcsn[0].bv_len = se->se_csn.bv_len;
1661 delcsn[0].bv_val[delcsn[0].bv_len] = '\0';
1663 if ( se->se_tag == LDAP_REQ_ADD )
1668 uuids[j].bv_val = uuids[0].bv_val + (j * UUID_LEN);
1669 AC_MEMCPY(uuids[j].bv_val, se->se_uuid.bv_val, UUID_LEN);
1670 uuids[j].bv_len = UUID_LEN;
1672 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1676 /* Zero out unused slots */
1677 for ( i=ndel; i < num - nmods; i++ )
1678 uuids[i].bv_len = 0;
1680 /* Mods must be validated to see if they belong in this delete set.
1684 /* Strip any duplicates */
1685 for ( i=0; i<nmods; i++ ) {
1686 for ( j=0; j<ndel; j++ ) {
1687 if ( bvmatch( &uuids[j], &uuids[num - 1 - i] )) {
1688 uuids[num - 1 - i].bv_len = 0;
1693 if ( uuids[num - 1 - i].bv_len == 0 ) continue;
1694 for ( j=0; j<i; j++ ) {
1695 if ( bvmatch( &uuids[num - 1 - j], &uuids[num - 1 - i] )) {
1696 uuids[num - 1 - i].bv_len = 0;
1707 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
1708 slap_callback cb = {0};
1712 fop.o_sync_mode = 0;
1713 fop.o_callback = &cb;
1714 fop.ors_limit = NULL;
1715 fop.ors_tlimit = SLAP_NO_LIMIT;
1716 fop.ors_attrs = slap_anlist_all_attributes;
1717 fop.ors_attrsonly = 0;
1718 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
1720 af.f_choice = LDAP_FILTER_AND;
1723 mf.f_choice = LDAP_FILTER_EQUALITY;
1725 mf.f_av_desc = slap_schema.si_ad_entryUUID;
1726 mf.f_next = fop.ors_filter;
1728 fop.ors_filter = ⁡
1730 cb.sc_response = playlog_cb;
1731 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
1733 for ( i=ndel; i<num; i++ ) {
1734 if ( uuids[i].bv_len != 0 ) {
1735 SlapReply frs = { REP_RESULT };
1737 mf.f_av_value = uuids[i];
1738 cb.sc_private = NULL;
1740 rc = fop.o_bd->be_search( &fop, &frs );
1742 /* If entry was not found, add to delete list */
1743 if ( !cb.sc_private ) {
1744 uuids[ndel++] = uuids[i];
1748 fop.o_bd->bd_info = (BackendInfo *)on;
1751 struct berval cookie;
1753 if ( delcsn[0].bv_len ) {
1754 slap_compose_sync_cookie( op, &cookie, delcsn, srs->sr_state.rid,
1755 slap_serverID ? slap_serverID : -1 );
1757 Debug( LDAP_DEBUG_SYNC, "syncprov_playlog: cookie=%s\n", cookie.bv_val, 0, 0 );
1760 uuids[ndel].bv_val = NULL;
1761 syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET,
1762 delcsn[0].bv_len ? &cookie : NULL, 0, uuids, 1 );
1763 if ( delcsn[0].bv_len ) {
1764 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
1767 op->o_tmpfree( uuids, op->o_tmpmemctx );
1771 syncprov_op_response( Operation *op, SlapReply *rs )
1773 opcookie *opc = op->o_callback->sc_private;
1774 slap_overinst *on = opc->son;
1775 syncprov_info_t *si = on->on_bi.bi_private;
1778 if ( rs->sr_err == LDAP_SUCCESS )
1780 struct berval maxcsn;
1781 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
1782 int do_check = 0, have_psearches, foundit, csn_changed = 0;
1784 ldap_pvt_thread_mutex_lock( &si->si_resp_mutex );
1786 /* Update our context CSN */
1788 maxcsn.bv_val = cbuf;
1789 maxcsn.bv_len = sizeof(cbuf);
1790 ldap_pvt_thread_rdwr_wlock( &si->si_csn_rwlock );
1792 slap_get_commit_csn( op, &maxcsn, &foundit );
1793 if ( BER_BVISEMPTY( &maxcsn ) && SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1794 /* syncrepl queues the CSN values in the db where
1795 * it is configured , not where the changes are made.
1796 * So look for a value in the glue db if we didn't
1797 * find any in this db.
1799 BackendDB *be = op->o_bd;
1800 op->o_bd = select_backend( &be->be_nsuffix[0], 1);
1801 maxcsn.bv_val = cbuf;
1802 maxcsn.bv_len = sizeof(cbuf);
1803 slap_get_commit_csn( op, &maxcsn, &foundit );
1806 if ( !BER_BVISEMPTY( &maxcsn ) ) {
1809 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1810 assert( !syn->ssyn_validate( syn, &maxcsn ));
1812 sid = slap_parse_csn_sid( &maxcsn );
1813 for ( i=0; i<si->si_numcsns; i++ ) {
1814 if ( sid < si->si_sids[i] )
1816 if ( sid == si->si_sids[i] ) {
1817 if ( ber_bvcmp( &maxcsn, &si->si_ctxcsn[i] ) > 0 ) {
1818 ber_bvreplace( &si->si_ctxcsn[i], &maxcsn );
1824 /* It's a new SID for us */
1825 if ( i == si->si_numcsns || sid != si->si_sids[i] ) {
1826 slap_insert_csn_sids((struct sync_cookie *)&(si->si_ctxcsn),
1832 /* Don't do any processing for consumer contextCSN updates */
1833 if ( op->o_dont_replicate ) {
1834 if ( op->o_tag == LDAP_REQ_MODIFY &&
1835 op->orm_modlist->sml_op == LDAP_MOD_REPLACE &&
1836 op->orm_modlist->sml_desc == slap_schema.si_ad_contextCSN ) {
1837 /* Catch contextCSN updates from syncrepl. We have to look at
1838 * all the attribute values, as there may be more than one csn
1839 * that changed, and only one can be passed in the csn queue.
1841 Modifications *mod = op->orm_modlist;
1845 for ( i=0; i<mod->sml_numvals; i++ ) {
1846 sid = slap_parse_csn_sid( &mod->sml_values[i] );
1847 for ( j=0; j<si->si_numcsns; j++ ) {
1848 if ( sid < si->si_sids[j] )
1850 if ( sid == si->si_sids[j] ) {
1851 if ( ber_bvcmp( &mod->sml_values[i], &si->si_ctxcsn[j] ) > 0 ) {
1852 ber_bvreplace( &si->si_ctxcsn[j], &mod->sml_values[i] );
1859 if ( j == si->si_numcsns || sid != si->si_sids[j] ) {
1860 slap_insert_csn_sids( (struct sync_cookie *)&si->si_ctxcsn,
1861 j, sid, &mod->sml_values[i] );
1867 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1869 if ( csn_changed ) {
1871 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1872 for ( ss = si->si_ops; ss; ss = ss->s_next ) {
1873 if ( ss->s_op->o_abandon )
1875 /* Send the updated csn to all syncrepl consumers,
1876 * including the server from which it originated.
1877 * The syncrepl consumer and syncprov provider on
1878 * the originating server may be configured to store
1879 * their csn values in different entries.
1881 syncprov_qresp( opc, ss, LDAP_SYNC_NEW_COOKIE );
1883 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1886 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1892 if ( si->si_chkops || si->si_chktime ) {
1893 /* Never checkpoint adding the context entry,
1896 if ( op->o_tag != LDAP_REQ_ADD ||
1897 !dn_match( &op->o_req_ndn, &si->si_contextdn )) {
1898 if ( si->si_chkops && si->si_numops >= si->si_chkops ) {
1902 if ( si->si_chktime &&
1903 (op->o_time - si->si_chklast >= si->si_chktime )) {
1904 if ( si->si_chklast ) {
1906 si->si_chklast = op->o_time;
1913 si->si_dirty = !csn_changed;
1914 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1917 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1918 syncprov_checkpoint( op, on );
1919 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1922 /* only update consumer ctx if this is a newer csn */
1923 if ( csn_changed ) {
1924 opc->sctxcsn = maxcsn;
1927 /* Handle any persistent searches */
1928 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1929 have_psearches = ( si->si_ops != NULL );
1930 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1931 if ( have_psearches ) {
1934 case LDAP_REQ_MODIFY:
1935 case LDAP_REQ_MODRDN:
1936 case LDAP_REQ_EXTENDED:
1937 syncprov_matchops( op, opc, 0 );
1939 case LDAP_REQ_DELETE:
1940 /* for each match in opc->smatches:
1943 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1944 if ( sm->sm_op->s_op->o_abandon )
1946 syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_DELETE );
1952 /* Add any log records */
1953 if ( si->si_logs ) {
1954 syncprov_add_slog( op );
1956 leave: ldap_pvt_thread_mutex_unlock( &si->si_resp_mutex );
1958 return SLAP_CB_CONTINUE;
1961 /* We don't use a subentry to store the context CSN any more.
1962 * We expose the current context CSN as an operational attribute
1963 * of the suffix entry.
1966 syncprov_op_compare( Operation *op, SlapReply *rs )
1968 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1969 syncprov_info_t *si = on->on_bi.bi_private;
1970 int rc = SLAP_CB_CONTINUE;
1972 if ( dn_match( &op->o_req_ndn, &si->si_contextdn ) &&
1973 op->oq_compare.rs_ava->aa_desc == slap_schema.si_ad_contextCSN )
1978 e.e_name = si->si_contextdn;
1979 e.e_nname = si->si_contextdn;
1982 a.a_desc = slap_schema.si_ad_contextCSN;
1984 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1986 a.a_vals = si->si_ctxcsn;
1987 a.a_nvals = a.a_vals;
1988 a.a_numvals = si->si_numcsns;
1990 rs->sr_err = access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc,
1991 &op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL );
1992 if ( ! rs->sr_err ) {
1993 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1994 goto return_results;
1997 if ( get_assert( op ) &&
1998 ( test_filter( op, &e, get_assertion( op ) ) != LDAP_COMPARE_TRUE ) )
2000 rs->sr_err = LDAP_ASSERTION_FAILED;
2001 goto return_results;
2005 rs->sr_err = LDAP_COMPARE_FALSE;
2007 if ( attr_valfind( &a,
2008 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
2009 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
2010 &op->oq_compare.rs_ava->aa_value, NULL, op->o_tmpmemctx ) == 0 )
2012 rs->sr_err = LDAP_COMPARE_TRUE;
2017 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2019 send_ldap_result( op, rs );
2021 if( rs->sr_err == LDAP_COMPARE_FALSE || rs->sr_err == LDAP_COMPARE_TRUE ) {
2022 rs->sr_err = LDAP_SUCCESS;
2031 syncprov_op_mod( Operation *op, SlapReply *rs )
2033 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2034 syncprov_info_t *si = on->on_bi.bi_private;
2037 int have_psearches, cbsize;
2039 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2040 have_psearches = ( si->si_ops != NULL );
2042 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2044 cbsize = sizeof(slap_callback) + sizeof(opcookie) +
2045 (have_psearches ? sizeof(modinst) : 0 );
2047 cb = op->o_tmpcalloc(1, cbsize, op->o_tmpmemctx);
2048 opc = (opcookie *)(cb+1);
2050 cb->sc_response = syncprov_op_response;
2051 cb->sc_cleanup = syncprov_op_cleanup;
2052 cb->sc_private = opc;
2053 cb->sc_next = op->o_callback;
2054 op->o_callback = cb;
2058 if ( op->o_csn.bv_val ) {
2059 opc->osid = slap_parse_csn_sid( &op->o_csn );
2061 if ( op->o_controls ) {
2062 struct sync_cookie *scook =
2063 op->o_controls[slap_cids.sc_LDAPsync];
2065 opc->rsid = scook->sid;
2068 if ( op->o_dont_replicate )
2069 return SLAP_CB_CONTINUE;
2071 /* If there are active persistent searches, lock this operation.
2072 * See seqmod.c for the locking logic on its own.
2074 if ( have_psearches ) {
2075 modtarget *mt, mtdummy;
2078 mi = (modinst *)(opc+1);
2081 /* See if we're already modifying this entry... */
2082 mtdummy.mt_dn = op->o_req_ndn;
2083 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
2084 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
2086 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
2087 if ( mt->mt_mods == NULL ) {
2088 /* Cannot reuse this mt, as another thread is about
2089 * to release it in syncprov_op_cleanup.
2091 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2096 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
2097 mt->mt_tail->mi_next = mi;
2099 /* wait for this op to get to head of list */
2100 while ( mt->mt_mods != mi ) {
2101 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2102 /* FIXME: if dynamic config can delete overlays or
2103 * databases we'll have to check for cleanup here.
2104 * Currently it's not an issue because there are
2105 * no dynamic config deletes...
2107 if ( slapd_shutdown )
2108 return SLAPD_ABANDON;
2110 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
2111 ldap_pvt_thread_yield();
2112 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
2114 /* clean up if the caller is giving up */
2115 if ( op->o_abandon ) {
2117 for ( m2 = mt->mt_mods; m2 && m2->mi_next != mi;
2120 m2->mi_next = mi->mi_next;
2121 if ( mt->mt_tail == mi ) mt->mt_tail = m2;
2123 op->o_tmpfree( cb, op->o_tmpmemctx );
2124 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2125 return SLAPD_ABANDON;
2128 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2130 /* Record that we're modifying this entry now */
2131 mt = ch_malloc( sizeof(modtarget) );
2134 ber_dupbv( &mt->mt_dn, &mi->mi_op->o_req_ndn );
2135 ldap_pvt_thread_mutex_init( &mt->mt_mutex );
2136 avl_insert( &si->si_mods, mt, sp_avl_cmp, avl_dup_error );
2137 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
2142 if (( have_psearches || si->si_logs ) && op->o_tag != LDAP_REQ_ADD )
2143 syncprov_matchops( op, opc, 1 );
2145 return SLAP_CB_CONTINUE;
2149 syncprov_op_extended( Operation *op, SlapReply *rs )
2151 if ( exop_is_write( op ))
2152 return syncprov_op_mod( op, rs );
2154 return SLAP_CB_CONTINUE;
2157 typedef struct searchstate {
2158 slap_overinst *ss_on;
2160 BerVarray ss_ctxcsn;
2163 #define SS_PRESENT 0x01
2164 #define SS_CHANGED 0x02
2168 typedef struct SyncOperationBuffer {
2172 AttributeName sob_extra; /* not always present */
2173 /* Further data allocated here */
2174 } SyncOperationBuffer;
2177 syncprov_detach_op( Operation *op, syncops *so, slap_overinst *on )
2179 SyncOperationBuffer *sopbuf2;
2184 GroupAssertion *g1, *g2;
2186 /* count the search attrs */
2187 for (i=0; op->ors_attrs && !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2188 alen += op->ors_attrs[i].an_name.bv_len + 1;
2190 /* Make a new copy of the operation */
2191 size = offsetof( SyncOperationBuffer, sob_extra ) +
2192 (i ? ( (i+1) * sizeof(AttributeName) + alen) : 0) +
2193 op->o_req_dn.bv_len + 1 +
2194 op->o_req_ndn.bv_len + 1 +
2195 op->o_ndn.bv_len + 1 +
2196 so->s_filterstr.bv_len + 1;
2197 sopbuf2 = ch_calloc( 1, size );
2198 op2 = &sopbuf2->sob_op;
2199 op2->o_hdr = &sopbuf2->sob_hdr;
2200 LDAP_SLIST_FIRST(&op2->o_extra) = &sopbuf2->sob_oe;
2202 /* Copy the fields we care about explicitly, leave the rest alone */
2203 *op2->o_hdr = *op->o_hdr;
2204 op2->o_tag = op->o_tag;
2205 op2->o_time = op->o_time;
2206 op2->o_bd = on->on_info->oi_origdb;
2207 op2->o_request = op->o_request;
2208 op2->o_managedsait = op->o_managedsait;
2209 LDAP_SLIST_FIRST(&op2->o_extra)->oe_key = on;
2210 LDAP_SLIST_NEXT(LDAP_SLIST_FIRST(&op2->o_extra), oe_next) = NULL;
2212 ptr = (char *) sopbuf2 + offsetof( SyncOperationBuffer, sob_extra );
2214 op2->ors_attrs = (AttributeName *) ptr;
2215 ptr = (char *) &op2->ors_attrs[i+1];
2216 for (i=0; !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2217 op2->ors_attrs[i] = op->ors_attrs[i];
2218 op2->ors_attrs[i].an_name.bv_val = ptr;
2219 ptr = lutil_strcopy( ptr, op->ors_attrs[i].an_name.bv_val ) + 1;
2221 BER_BVZERO( &op2->ors_attrs[i].an_name );
2224 op2->o_authz = op->o_authz;
2225 op2->o_ndn.bv_val = ptr;
2226 ptr = lutil_strcopy(ptr, op->o_ndn.bv_val) + 1;
2227 op2->o_dn = op2->o_ndn;
2228 op2->o_req_dn.bv_len = op->o_req_dn.bv_len;
2229 op2->o_req_dn.bv_val = ptr;
2230 ptr = lutil_strcopy(ptr, op->o_req_dn.bv_val) + 1;
2231 op2->o_req_ndn.bv_len = op->o_req_ndn.bv_len;
2232 op2->o_req_ndn.bv_val = ptr;
2233 ptr = lutil_strcopy(ptr, op->o_req_ndn.bv_val) + 1;
2234 op2->ors_filterstr.bv_val = ptr;
2235 strcpy( ptr, so->s_filterstr.bv_val );
2236 op2->ors_filterstr.bv_len = so->s_filterstr.bv_len;
2238 /* Skip the AND/GE clause that we stuck on in front */
2239 if ( so->s_flags & PS_FIX_FILTER ) {
2240 op2->ors_filter = op->ors_filter->f_and->f_next;
2241 so->s_flags ^= PS_FIX_FILTER;
2243 op2->ors_filter = op->ors_filter;
2245 op2->ors_filter = filter_dup( op2->ors_filter, NULL );
2248 /* Copy any cached group ACLs individually */
2249 op2->o_groups = NULL;
2250 for ( g1=op->o_groups; g1; g1=g1->ga_next ) {
2251 g2 = ch_malloc( sizeof(GroupAssertion) + g1->ga_len );
2253 strcpy( g2->ga_ndn, g1->ga_ndn );
2254 g2->ga_next = op2->o_groups;
2257 /* Don't allow any further group caching */
2258 op2->o_do_not_cache = 1;
2260 /* Add op2 to conn so abandon will find us */
2261 op->o_conn->c_n_ops_executing++;
2262 op->o_conn->c_n_ops_completed--;
2263 LDAP_STAILQ_INSERT_TAIL( &op->o_conn->c_ops, op2, o_next );
2264 so->s_flags |= PS_IS_DETACHED;
2266 /* Prevent anyone else from trying to send a result for this op */
2271 syncprov_search_response( Operation *op, SlapReply *rs )
2273 searchstate *ss = op->o_callback->sc_private;
2274 slap_overinst *on = ss->ss_on;
2275 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2276 sync_control *srs = op->o_controls[slap_cids.sc_LDAPsync];
2278 if ( rs->sr_type == REP_SEARCH || rs->sr_type == REP_SEARCHREF ) {
2280 /* If we got a referral without a referral object, there's
2281 * something missing that we cannot replicate. Just ignore it.
2282 * The consumer will abort because we didn't send the expected
2285 if ( !rs->sr_entry ) {
2286 assert( rs->sr_entry != NULL );
2287 Debug( LDAP_DEBUG_ANY, "bogus referral in context\n",0,0,0 );
2288 return SLAP_CB_CONTINUE;
2290 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryCSN );
2291 if ( a == NULL && rs->sr_operational_attrs != NULL ) {
2292 a = attr_find( rs->sr_operational_attrs, slap_schema.si_ad_entryCSN );
2296 sid = slap_parse_csn_sid( &a->a_nvals[0] );
2298 /* Don't send changed entries back to the originator */
2299 if ( sid == srs->sr_state.sid && srs->sr_state.numcsns ) {
2300 Debug( LDAP_DEBUG_SYNC,
2301 "Entry %s changed by peer, ignored\n",
2302 rs->sr_entry->e_name.bv_val, 0, 0 );
2303 return LDAP_SUCCESS;
2306 /* If not a persistent search */
2308 /* Make sure entry is less than the snapshot'd contextCSN */
2309 for ( i=0; i<ss->ss_numcsns; i++ ) {
2310 if ( sid == ss->ss_sids[i] && ber_bvcmp( &a->a_nvals[0],
2311 &ss->ss_ctxcsn[i] ) > 0 ) {
2312 Debug( LDAP_DEBUG_SYNC,
2313 "Entry %s CSN %s greater than snapshot %s\n",
2314 rs->sr_entry->e_name.bv_val,
2315 a->a_nvals[0].bv_val,
2316 ss->ss_ctxcsn[i].bv_val );
2317 return LDAP_SUCCESS;
2322 /* Don't send old entries twice */
2323 if ( srs->sr_state.ctxcsn ) {
2324 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2325 if ( sid == srs->sr_state.sids[i] &&
2326 ber_bvcmp( &a->a_nvals[0],
2327 &srs->sr_state.ctxcsn[i] )<= 0 ) {
2328 Debug( LDAP_DEBUG_SYNC,
2329 "Entry %s CSN %s older or equal to ctx %s\n",
2330 rs->sr_entry->e_name.bv_val,
2331 a->a_nvals[0].bv_val,
2332 srs->sr_state.ctxcsn[i].bv_val );
2333 return LDAP_SUCCESS;
2338 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2340 rs->sr_ctrls[1] = NULL;
2341 rs->sr_flags |= REP_CTRLS_MUSTBEFREED;
2342 /* If we're in delta-sync mode, always send a cookie */
2343 if ( si->si_nopres && si->si_usehint && a ) {
2344 struct berval cookie;
2345 slap_compose_sync_cookie( op, &cookie, a->a_nvals, srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
2346 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2347 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 1, &cookie );
2348 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2350 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2351 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 0, NULL );
2353 } else if ( rs->sr_type == REP_RESULT && rs->sr_err == LDAP_SUCCESS ) {
2354 struct berval cookie = BER_BVNULL;
2356 if ( ( ss->ss_flags & SS_CHANGED ) &&
2357 ss->ss_ctxcsn && !BER_BVISNULL( &ss->ss_ctxcsn[0] )) {
2358 slap_compose_sync_cookie( op, &cookie, ss->ss_ctxcsn,
2359 srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
2361 Debug( LDAP_DEBUG_SYNC, "syncprov_search_response: cookie=%s\n", cookie.bv_val, 0, 0 );
2364 /* Is this a regular refresh?
2365 * Note: refresh never gets here if there were no changes
2368 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2370 rs->sr_ctrls[1] = NULL;
2371 rs->sr_flags |= REP_CTRLS_MUSTBEFREED;
2372 rs->sr_err = syncprov_done_ctrl( op, rs, rs->sr_ctrls,
2373 0, 1, &cookie, ( ss->ss_flags & SS_PRESENT ) ? LDAP_SYNC_REFRESH_PRESENTS :
2374 LDAP_SYNC_REFRESH_DELETES );
2375 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2377 /* It's RefreshAndPersist, transition to Persist phase */
2378 syncprov_sendinfo( op, rs, ( ss->ss_flags & SS_PRESENT ) ?
2379 LDAP_TAG_SYNC_REFRESH_PRESENT : LDAP_TAG_SYNC_REFRESH_DELETE,
2380 ( ss->ss_flags & SS_CHANGED ) ? &cookie : NULL,
2382 if ( !BER_BVISNULL( &cookie ))
2383 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2385 /* Detach this Op from frontend control */
2386 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
2388 /* But not if this connection was closed along the way */
2389 if ( op->o_abandon ) {
2390 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2391 /* syncprov_ab_cleanup will free this syncop */
2392 return SLAPD_ABANDON;
2395 ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex );
2396 /* Turn off the refreshing flag */
2397 ss->ss_so->s_flags ^= PS_IS_REFRESHING;
2399 syncprov_detach_op( op, ss->ss_so, on );
2401 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2403 /* If there are queued responses, fire them off */
2404 if ( ss->ss_so->s_res )
2405 syncprov_qstart( ss->ss_so );
2406 ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
2409 return LDAP_SUCCESS;
2413 return SLAP_CB_CONTINUE;
2417 syncprov_op_search( Operation *op, SlapReply *rs )
2419 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2420 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2422 int gotstate = 0, changed = 0, do_present = 0;
2423 syncops *sop = NULL;
2427 int i, *sids, numcsns;
2428 struct berval mincsn, maxcsn;
2432 if ( !(op->o_sync_mode & SLAP_SYNC_REFRESH) ) return SLAP_CB_CONTINUE;
2434 if ( op->ors_deref & LDAP_DEREF_SEARCHING ) {
2435 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR, "illegal value for derefAliases" );
2439 srs = op->o_controls[slap_cids.sc_LDAPsync];
2441 /* If this is a persistent search, set it up right away */
2442 if ( op->o_sync_mode & SLAP_SYNC_PERSIST ) {
2452 so.s_flags = PS_IS_REFRESHING | PS_FIND_BASE;
2453 /* syncprov_findbase expects to be called as a callback... */
2454 sc.sc_private = &opc;
2456 ldap_pvt_thread_mutex_init( &so.s_mutex );
2457 cb = op->o_callback;
2458 op->o_callback = ≻
2459 rs->sr_err = syncprov_findbase( op, &fc );
2460 op->o_callback = cb;
2461 ldap_pvt_thread_mutex_destroy( &so.s_mutex );
2463 if ( rs->sr_err != LDAP_SUCCESS ) {
2464 send_ldap_result( op, rs );
2467 sop = ch_malloc( sizeof( syncops ));
2469 ldap_pvt_thread_mutex_init( &sop->s_mutex );
2470 sop->s_rid = srs->sr_state.rid;
2471 sop->s_sid = srs->sr_state.sid;
2472 /* set refcount=2 to prevent being freed out from under us
2473 * by abandons that occur while we're running here
2477 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2478 while ( si->si_active ) {
2479 /* Wait for active mods to finish before proceeding, as they
2480 * may already have inspected the si_ops list looking for
2481 * consumers to replicate the change to. Using the log
2482 * doesn't help, as we may finish playing it before the
2483 * active mods gets added to it.
2485 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2486 if ( slapd_shutdown ) {
2488 return SLAPD_ABANDON;
2490 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
2491 ldap_pvt_thread_yield();
2492 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2494 sop->s_next = si->si_ops;
2496 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2499 /* snapshot the ctxcsn */
2500 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2501 numcsns = si->si_numcsns;
2503 ber_bvarray_dup_x( &ctxcsn, si->si_ctxcsn, op->o_tmpmemctx );
2504 sids = op->o_tmpalloc( numcsns * sizeof(int), op->o_tmpmemctx );
2505 for ( i=0; i<numcsns; i++ )
2506 sids[i] = si->si_sids[i];
2511 dirty = si->si_dirty;
2512 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2514 /* If we have a cookie, handle the PRESENT lookups */
2515 if ( srs->sr_state.ctxcsn ) {
2519 /* If we don't have any CSN of our own yet, pretend nothing
2525 if ( !si->si_nopres )
2526 do_present = SS_PRESENT;
2528 /* If there are SIDs we don't recognize in the cookie, drop them */
2529 for (i=0; i<srs->sr_state.numcsns; ) {
2530 for (j=i; j<numcsns; j++) {
2531 if ( srs->sr_state.sids[i] <= sids[j] ) {
2536 if ( j == numcsns || srs->sr_state.sids[i] != sids[j] ) {
2537 char *tmp = srs->sr_state.ctxcsn[i].bv_val;
2538 srs->sr_state.numcsns--;
2539 for ( j=i; j<srs->sr_state.numcsns; j++ ) {
2540 srs->sr_state.ctxcsn[j] = srs->sr_state.ctxcsn[j+1];
2541 srs->sr_state.sids[j] = srs->sr_state.sids[j+1];
2543 srs->sr_state.ctxcsn[j].bv_val = tmp;
2544 srs->sr_state.ctxcsn[j].bv_len = 0;
2550 if (srs->sr_state.numcsns != numcsns) {
2551 /* consumer doesn't have the right number of CSNs */
2552 changed = SS_CHANGED;
2553 if ( srs->sr_state.ctxcsn ) {
2554 ber_bvarray_free_x( srs->sr_state.ctxcsn, op->o_tmpmemctx );
2555 srs->sr_state.ctxcsn = NULL;
2557 if ( srs->sr_state.sids ) {
2558 slap_sl_free( srs->sr_state.sids, op->o_tmpmemctx );
2559 srs->sr_state.sids = NULL;
2561 srs->sr_state.numcsns = 0;
2565 /* Find the smallest CSN which differs from contextCSN */
2568 for ( i=0,j=0; i<srs->sr_state.numcsns; i++ ) {
2570 while ( srs->sr_state.sids[i] != sids[j] ) j++;
2571 if ( BER_BVISEMPTY( &maxcsn ) || ber_bvcmp( &maxcsn,
2572 &srs->sr_state.ctxcsn[i] ) < 0 ) {
2573 maxcsn = srs->sr_state.ctxcsn[i];
2576 newer = ber_bvcmp( &srs->sr_state.ctxcsn[i], &ctxcsn[j] );
2577 /* If our state is newer, tell consumer about changes */
2579 changed = SS_CHANGED;
2580 if ( BER_BVISEMPTY( &mincsn ) || ber_bvcmp( &mincsn,
2581 &srs->sr_state.ctxcsn[i] ) > 0 ) {
2582 mincsn = srs->sr_state.ctxcsn[i];
2585 } else if ( newer > 0 && sids[j] == slap_serverID ) {
2586 /* our state is older, complain to consumer */
2587 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
2588 rs->sr_text = "consumer state is newer than provider!";
2591 syncops **sp = &si->si_ops;
2593 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2594 while ( *sp != sop )
2595 sp = &(*sp)->s_next;
2597 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2600 rs->sr_ctrls = NULL;
2601 send_ldap_result( op, rs );
2605 if ( BER_BVISEMPTY( &mincsn )) {
2610 /* If nothing has changed, shortcut it */
2611 if ( !changed && !dirty ) {
2613 no_change: if ( !(op->o_sync_mode & SLAP_SYNC_PERSIST) ) {
2614 LDAPControl *ctrls[2];
2618 syncprov_done_ctrl( op, rs, ctrls, 0, 0,
2619 NULL, LDAP_SYNC_REFRESH_DELETES );
2620 rs->sr_ctrls = ctrls;
2621 rs->sr_err = LDAP_SUCCESS;
2622 send_ldap_result( op, rs );
2623 rs->sr_ctrls = NULL;
2629 /* Do we have a sessionlog for this search? */
2633 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
2634 /* Are there any log entries, and is the consumer state
2635 * present in the session log?
2637 if ( sl->sl_num > 0 ) {
2639 for ( i=0; i<sl->sl_numcsns; i++ ) {
2640 /* SID not present == new enough */
2641 if ( minsid < sl->sl_sids[i] ) {
2646 if ( minsid == sl->sl_sids[i] ) {
2648 if ( ber_bvcmp( &mincsn, &sl->sl_mincsn[i] ) >= 0 )
2653 /* SID not present == new enough */
2654 if ( i == sl->sl_numcsns )
2659 /* mutex is unlocked in playlog */
2660 syncprov_playlog( op, rs, sl, srs, ctxcsn, numcsns, sids );
2662 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
2665 /* Is the CSN still present in the database? */
2666 if ( syncprov_findcsn( op, FIND_CSN, &mincsn ) != LDAP_SUCCESS ) {
2667 /* No, so a reload is required */
2668 /* the 2.2 consumer doesn't send this hint */
2669 if ( si->si_usehint && srs->sr_rhint == 0 ) {
2671 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2673 op->o_tmpfree( sids, op->o_tmpmemctx );
2674 rs->sr_err = LDAP_SYNC_REFRESH_REQUIRED;
2675 rs->sr_text = "sync cookie is stale";
2678 if ( srs->sr_state.ctxcsn ) {
2679 ber_bvarray_free_x( srs->sr_state.ctxcsn, op->o_tmpmemctx );
2680 srs->sr_state.ctxcsn = NULL;
2682 if ( srs->sr_state.sids ) {
2683 slap_sl_free( srs->sr_state.sids, op->o_tmpmemctx );
2684 srs->sr_state.sids = NULL;
2686 srs->sr_state.numcsns = 0;
2689 /* If changed and doing Present lookup, send Present UUIDs */
2690 if ( do_present && syncprov_findcsn( op, FIND_PRESENT, 0 ) !=
2693 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2695 op->o_tmpfree( sids, op->o_tmpmemctx );
2700 /* No consumer state, assume something has changed */
2701 changed = SS_CHANGED;
2705 /* Append CSN range to search filter, save original filter
2706 * for persistent search evaluation
2709 ldap_pvt_thread_mutex_lock( &sop->s_mutex );
2710 sop->s_filterstr = op->ors_filterstr;
2711 /* correct the refcount that was set to 2 before */
2715 /* If something changed, find the changes */
2716 if ( gotstate && ( changed || dirty ) ) {
2717 Filter *fand, *fava;
2719 fand = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2720 fand->f_choice = LDAP_FILTER_AND;
2721 fand->f_next = NULL;
2722 fava = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2724 fava->f_choice = LDAP_FILTER_GE;
2725 fava->f_ava = op->o_tmpalloc( sizeof(AttributeAssertion), op->o_tmpmemctx );
2726 fava->f_ava->aa_desc = slap_schema.si_ad_entryCSN;
2727 #ifdef LDAP_COMP_MATCH
2728 fava->f_ava->aa_cf = NULL;
2730 ber_dupbv_x( &fava->f_ava->aa_value, &mincsn, op->o_tmpmemctx );
2731 fava->f_next = op->ors_filter;
2732 op->ors_filter = fand;
2733 filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2735 sop->s_flags |= PS_FIX_FILTER;
2739 ldap_pvt_thread_mutex_unlock( &sop->s_mutex );
2742 /* Let our callback add needed info to returned entries */
2743 cb = op->o_tmpcalloc(1, sizeof(slap_callback)+sizeof(searchstate), op->o_tmpmemctx);
2744 ss = (searchstate *)(cb+1);
2747 ss->ss_flags = do_present | changed;
2748 ss->ss_ctxcsn = ctxcsn;
2749 ss->ss_numcsns = numcsns;
2751 cb->sc_response = syncprov_search_response;
2752 cb->sc_private = ss;
2753 cb->sc_next = op->o_callback;
2754 op->o_callback = cb;
2756 /* If this is a persistent search and no changes were reported during
2757 * the refresh phase, just invoke the response callback to transition
2758 * us into persist phase
2760 if ( !changed && !dirty ) {
2761 rs->sr_err = LDAP_SUCCESS;
2762 rs->sr_nentries = 0;
2763 send_ldap_result( op, rs );
2766 return SLAP_CB_CONTINUE;
2770 syncprov_operational(
2774 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2775 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2777 /* This prevents generating unnecessarily; frontend will strip
2778 * any statically stored copy.
2780 if ( op->o_sync != SLAP_CONTROL_NONE )
2781 return SLAP_CB_CONTINUE;
2783 if ( rs->sr_entry &&
2784 dn_match( &rs->sr_entry->e_nname, &si->si_contextdn )) {
2786 if ( SLAP_OPATTRS( rs->sr_attr_flags ) ||
2787 ad_inlist( slap_schema.si_ad_contextCSN, rs->sr_attrs )) {
2788 Attribute *a, **ap = NULL;
2790 for ( a=rs->sr_entry->e_attrs; a; a=a->a_next ) {
2791 if ( a->a_desc == slap_schema.si_ad_contextCSN )
2795 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2796 if ( si->si_ctxcsn ) {
2798 for ( ap = &rs->sr_operational_attrs; *ap;
2799 ap=&(*ap)->a_next );
2801 a = attr_alloc( slap_schema.si_ad_contextCSN );
2806 if ( rs_entry2modifiable( op, rs, on )) {
2807 a = attr_find( rs->sr_entry->e_attrs,
2808 slap_schema.si_ad_contextCSN );
2810 if ( a->a_nvals != a->a_vals ) {
2811 ber_bvarray_free( a->a_nvals );
2814 ber_bvarray_free( a->a_vals );
2818 attr_valadd( a, si->si_ctxcsn, si->si_ctxcsn, si->si_numcsns );
2820 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2823 return SLAP_CB_CONTINUE;
2833 static ConfigDriver sp_cf_gen;
2835 static ConfigTable spcfg[] = {
2836 { "syncprov-checkpoint", "ops> <minutes", 3, 3, 0, ARG_MAGIC|SP_CHKPT,
2837 sp_cf_gen, "( OLcfgOvAt:1.1 NAME 'olcSpCheckpoint' "
2838 "DESC 'ContextCSN checkpoint interval in ops and minutes' "
2839 "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
2840 { "syncprov-sessionlog", "ops", 2, 2, 0, ARG_INT|ARG_MAGIC|SP_SESSL,
2841 sp_cf_gen, "( OLcfgOvAt:1.2 NAME 'olcSpSessionlog' "
2842 "DESC 'Session log size in ops' "
2843 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
2844 { "syncprov-nopresent", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_NOPRES,
2845 sp_cf_gen, "( OLcfgOvAt:1.3 NAME 'olcSpNoPresent' "
2846 "DESC 'Omit Present phase processing' "
2847 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2848 { "syncprov-reloadhint", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_USEHINT,
2849 sp_cf_gen, "( OLcfgOvAt:1.4 NAME 'olcSpReloadHint' "
2850 "DESC 'Observe Reload Hint in Request control' "
2851 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2852 { NULL, NULL, 0, 0, 0, ARG_IGNORED }
2855 static ConfigOCs spocs[] = {
2856 { "( OLcfgOvOc:1.1 "
2857 "NAME 'olcSyncProvConfig' "
2858 "DESC 'SyncRepl Provider configuration' "
2859 "SUP olcOverlayConfig "
2860 "MAY ( olcSpCheckpoint "
2861 "$ olcSpSessionlog "
2863 "$ olcSpReloadHint "
2865 Cft_Overlay, spcfg },
2870 sp_cf_gen(ConfigArgs *c)
2872 slap_overinst *on = (slap_overinst *)c->bi;
2873 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2876 if ( c->op == SLAP_CONFIG_EMIT ) {
2877 switch ( c->type ) {
2879 if ( si->si_chkops || si->si_chktime ) {
2881 /* we assume si_chktime is a multiple of 60
2882 * because the parsed value was originally
2883 * multiplied by 60 */
2884 bv.bv_len = snprintf( c->cr_msg, sizeof( c->cr_msg ),
2885 "%d %d", si->si_chkops, si->si_chktime/60 );
2886 if ( bv.bv_len >= sizeof( c->cr_msg ) ) {
2889 bv.bv_val = c->cr_msg;
2890 value_add_one( &c->rvalue_vals, &bv );
2897 if ( si->si_logs ) {
2898 c->value_int = si->si_logs->sl_size;
2904 if ( si->si_nopres ) {
2911 if ( si->si_usehint ) {
2919 } else if ( c->op == LDAP_MOD_DELETE ) {
2920 switch ( c->type ) {
2927 si->si_logs->sl_size = 0;
2929 rc = LDAP_NO_SUCH_ATTRIBUTE;
2932 if ( si->si_nopres )
2935 rc = LDAP_NO_SUCH_ATTRIBUTE;
2938 if ( si->si_usehint )
2941 rc = LDAP_NO_SUCH_ATTRIBUTE;
2946 switch ( c->type ) {
2948 if ( lutil_atoi( &si->si_chkops, c->argv[1] ) != 0 ) {
2949 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint ops # \"%s\"",
2950 c->argv[0], c->argv[1] );
2951 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2952 "%s: %s\n", c->log, c->cr_msg, 0 );
2953 return ARG_BAD_CONF;
2955 if ( si->si_chkops <= 0 ) {
2956 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint ops # \"%d\"",
2957 c->argv[0], si->si_chkops );
2958 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2959 "%s: %s\n", c->log, c->cr_msg, 0 );
2960 return ARG_BAD_CONF;
2962 if ( lutil_atoi( &si->si_chktime, c->argv[2] ) != 0 ) {
2963 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint time \"%s\"",
2964 c->argv[0], c->argv[1] );
2965 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2966 "%s: %s\n", c->log, c->cr_msg, 0 );
2967 return ARG_BAD_CONF;
2969 if ( si->si_chktime <= 0 ) {
2970 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint time \"%d\"",
2971 c->argv[0], si->si_chkops );
2972 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2973 "%s: %s\n", c->log, c->cr_msg, 0 );
2974 return ARG_BAD_CONF;
2976 si->si_chktime *= 60;
2980 int size = c->value_int;
2983 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s size %d is negative",
2985 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2986 "%s: %s\n", c->log, c->cr_msg, 0 );
2987 return ARG_BAD_CONF;
2991 sl = ch_malloc( sizeof( sessionlog ));
2992 sl->sl_mincsn = NULL;
2996 sl->sl_head = sl->sl_tail = NULL;
2997 ldap_pvt_thread_mutex_init( &sl->sl_mutex );
3004 si->si_nopres = c->value_int;
3007 si->si_usehint = c->value_int;
3013 /* ITS#3456 we cannot run this search on the main thread, must use a
3014 * child thread in order to insure we have a big enough stack.
3021 syncprov_findcsn( ptr, FIND_MAXCSN, 0 );
3026 /* Read any existing contextCSN from the underlying db.
3027 * Then search for any entries newer than that. If no value exists,
3028 * just generate it. Cache whatever result.
3036 slap_overinst *on = (slap_overinst *) be->bd_info;
3037 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3039 Connection conn = { 0 };
3040 OperationBuffer opbuf;
3045 void *thrctx = NULL;
3047 if ( !SLAP_LASTMOD( be )) {
3048 Debug( LDAP_DEBUG_ANY,
3049 "syncprov_db_open: invalid config, lastmod must be enabled\n", 0, 0, 0 );
3053 if ( slapMode & SLAP_TOOL_MODE ) {
3057 rc = overlay_register_control( be, LDAP_CONTROL_SYNC );
3062 thrctx = ldap_pvt_thread_pool_context();
3063 connection_fake_init2( &conn, &opbuf, thrctx, 0 );
3066 op->o_dn = be->be_rootdn;
3067 op->o_ndn = be->be_rootndn;
3069 if ( SLAP_SYNC_SUBENTRY( be )) {
3070 build_new_dn( &si->si_contextdn, be->be_nsuffix,
3071 (struct berval *)&slap_ldapsync_cn_bv, NULL );
3073 si->si_contextdn = be->be_nsuffix[0];
3075 rc = overlay_entry_get_ov( op, &si->si_contextdn, NULL,
3076 slap_schema.si_ad_contextCSN, 0, &e, on );
3079 ldap_pvt_thread_t tid;
3081 a = attr_find( e->e_attrs, slap_schema.si_ad_contextCSN );
3083 ber_bvarray_dup_x( &si->si_ctxcsn, a->a_vals, NULL );
3084 si->si_numcsns = a->a_numvals;
3085 si->si_sids = slap_parse_csn_sids( si->si_ctxcsn, a->a_numvals, NULL );
3086 slap_sort_csn_sids( si->si_ctxcsn, si->si_sids, si->si_numcsns, NULL );
3088 overlay_entry_release_ov( op, e, 0, on );
3089 if ( si->si_ctxcsn && !SLAP_DBCLEAN( be )) {
3090 op->o_tag = LDAP_REQ_SEARCH;
3091 op->o_req_dn = be->be_suffix[0];
3092 op->o_req_ndn = be->be_nsuffix[0];
3093 op->ors_scope = LDAP_SCOPE_SUBTREE;
3094 ldap_pvt_thread_create( &tid, 0, syncprov_db_otask, op );
3095 ldap_pvt_thread_join( tid, NULL );
3099 /* Didn't find a contextCSN, should we generate one? */
3100 if ( !si->si_ctxcsn ) {
3101 char csnbuf[ LDAP_PVT_CSNSTR_BUFSIZE ];
3104 if ( SLAP_SYNC_SHADOW( op->o_bd )) {
3105 /* If we're also a consumer, then don't generate anything.
3106 * Wait for our provider to send it to us, or for a local
3107 * modify if we have multimaster.
3111 csn.bv_val = csnbuf;
3112 csn.bv_len = sizeof( csnbuf );
3113 slap_get_csn( op, &csn, 0 );
3114 value_add_one( &si->si_ctxcsn, &csn );
3116 si->si_sids = ch_malloc( sizeof(int) );
3117 si->si_sids[0] = slap_serverID;
3119 /* make sure we do a checkpoint on close */
3123 /* Initialize the sessionlog mincsn */
3124 if ( si->si_logs && si->si_numcsns ) {
3125 sessionlog *sl = si->si_logs;
3127 ber_bvarray_dup_x( &sl->sl_mincsn, si->si_ctxcsn, NULL );
3128 sl->sl_numcsns = si->si_numcsns;
3129 sl->sl_sids = ch_malloc( si->si_numcsns * sizeof(int) );
3130 for ( i=0; i < si->si_numcsns; i++ )
3131 sl->sl_sids[i] = si->si_sids[i];
3135 op->o_bd->bd_info = (BackendInfo *)on;
3139 /* Write the current contextCSN into the underlying db.
3147 slap_overinst *on = (slap_overinst *) be->bd_info;
3148 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3149 #ifdef SLAP_CONFIG_DELETE
3150 syncops *so, *sonext;
3151 #endif /* SLAP_CONFIG_DELETE */
3153 if ( slapMode & SLAP_TOOL_MODE ) {
3156 if ( si->si_numops ) {
3157 Connection conn = {0};
3158 OperationBuffer opbuf;
3162 thrctx = ldap_pvt_thread_pool_context();
3163 connection_fake_init2( &conn, &opbuf, thrctx, 0 );
3166 op->o_dn = be->be_rootdn;
3167 op->o_ndn = be->be_rootndn;
3168 syncprov_checkpoint( op, on );
3171 #ifdef SLAP_CONFIG_DELETE
3172 if ( !slapd_shutdown ) {
3173 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
3174 for ( so=si->si_ops, sonext=so; so; so=sonext ) {
3175 SlapReply rs = {REP_RESULT};
3176 rs.sr_err = LDAP_UNAVAILABLE;
3177 send_ldap_result( so->s_op, &rs );
3179 syncprov_drop_psearch( so, 0);
3182 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
3184 overlay_unregister_control( be, LDAP_CONTROL_SYNC );
3185 #endif /* SLAP_CONFIG_DELETE */
3196 slap_overinst *on = (slap_overinst *)be->bd_info;
3197 syncprov_info_t *si;
3199 if ( SLAP_ISGLOBALOVERLAY( be ) ) {
3200 Debug( LDAP_DEBUG_ANY,
3201 "syncprov must be instantiated within a database.\n",
3206 si = ch_calloc(1, sizeof(syncprov_info_t));
3207 on->on_bi.bi_private = si;
3208 ldap_pvt_thread_rdwr_init( &si->si_csn_rwlock );
3209 ldap_pvt_thread_mutex_init( &si->si_ops_mutex );
3210 ldap_pvt_thread_mutex_init( &si->si_mods_mutex );
3211 ldap_pvt_thread_mutex_init( &si->si_resp_mutex );
3213 csn_anlist[0].an_desc = slap_schema.si_ad_entryCSN;
3214 csn_anlist[0].an_name = slap_schema.si_ad_entryCSN->ad_cname;
3215 csn_anlist[1].an_desc = slap_schema.si_ad_entryUUID;
3216 csn_anlist[1].an_name = slap_schema.si_ad_entryUUID->ad_cname;
3218 uuid_anlist[0].an_desc = slap_schema.si_ad_entryUUID;
3219 uuid_anlist[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
3225 syncprov_db_destroy(
3230 slap_overinst *on = (slap_overinst *)be->bd_info;
3231 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3234 if ( si->si_logs ) {
3235 sessionlog *sl = si->si_logs;
3236 slog_entry *se = sl->sl_head;
3239 slog_entry *se_next = se->se_next;
3243 if ( sl->sl_mincsn )
3244 ber_bvarray_free( sl->sl_mincsn );
3246 ch_free( sl->sl_sids );
3248 ldap_pvt_thread_mutex_destroy(&si->si_logs->sl_mutex);
3249 ch_free( si->si_logs );
3251 if ( si->si_ctxcsn )
3252 ber_bvarray_free( si->si_ctxcsn );
3254 ch_free( si->si_sids );
3255 ldap_pvt_thread_mutex_destroy( &si->si_resp_mutex );
3256 ldap_pvt_thread_mutex_destroy( &si->si_mods_mutex );
3257 ldap_pvt_thread_mutex_destroy( &si->si_ops_mutex );
3258 ldap_pvt_thread_rdwr_destroy( &si->si_csn_rwlock );
3265 static int syncprov_parseCtrl (
3271 BerElementBuffer berbuf;
3272 BerElement *ber = (BerElement *)&berbuf;
3275 struct berval cookie = BER_BVNULL;
3279 if ( op->o_sync != SLAP_CONTROL_NONE ) {
3280 rs->sr_text = "Sync control specified multiple times";
3281 return LDAP_PROTOCOL_ERROR;
3284 if ( op->o_pagedresults != SLAP_CONTROL_NONE ) {
3285 rs->sr_text = "Sync control specified with pagedResults control";
3286 return LDAP_PROTOCOL_ERROR;
3289 if ( BER_BVISNULL( &ctrl->ldctl_value ) ) {
3290 rs->sr_text = "Sync control value is absent";
3291 return LDAP_PROTOCOL_ERROR;
3294 if ( BER_BVISEMPTY( &ctrl->ldctl_value ) ) {
3295 rs->sr_text = "Sync control value is empty";
3296 return LDAP_PROTOCOL_ERROR;
3299 /* Parse the control value
3300 * syncRequestValue ::= SEQUENCE {
3305 * refreshAndPersist (3)
3307 * cookie syncCookie OPTIONAL
3311 ber_init2( ber, &ctrl->ldctl_value, 0 );
3313 if ( (tag = ber_scanf( ber, "{i" /*}*/, &mode )) == LBER_ERROR ) {
3314 rs->sr_text = "Sync control : mode decoding error";
3315 return LDAP_PROTOCOL_ERROR;
3319 case LDAP_SYNC_REFRESH_ONLY:
3320 mode = SLAP_SYNC_REFRESH;
3322 case LDAP_SYNC_REFRESH_AND_PERSIST:
3323 mode = SLAP_SYNC_REFRESH_AND_PERSIST;
3326 rs->sr_text = "Sync control : unknown update mode";
3327 return LDAP_PROTOCOL_ERROR;
3330 tag = ber_peek_tag( ber, &len );
3332 if ( tag == LDAP_TAG_SYNC_COOKIE ) {
3333 if (( ber_scanf( ber, /*{*/ "m", &cookie )) == LBER_ERROR ) {
3334 rs->sr_text = "Sync control : cookie decoding error";
3335 return LDAP_PROTOCOL_ERROR;
3337 tag = ber_peek_tag( ber, &len );
3339 if ( tag == LDAP_TAG_RELOAD_HINT ) {
3340 if (( ber_scanf( ber, /*{*/ "b", &rhint )) == LBER_ERROR ) {
3341 rs->sr_text = "Sync control : rhint decoding error";
3342 return LDAP_PROTOCOL_ERROR;
3345 if (( ber_scanf( ber, /*{*/ "}")) == LBER_ERROR ) {
3346 rs->sr_text = "Sync control : decoding error";
3347 return LDAP_PROTOCOL_ERROR;
3349 sr = op->o_tmpcalloc( 1, sizeof(struct sync_control), op->o_tmpmemctx );
3350 sr->sr_rhint = rhint;
3351 if (!BER_BVISNULL(&cookie)) {
3352 ber_dupbv_x( &sr->sr_state.octet_str, &cookie, op->o_tmpmemctx );
3353 /* If parse fails, pretend no cookie was sent */
3354 if ( slap_parse_sync_cookie( &sr->sr_state, op->o_tmpmemctx ) ||
3355 sr->sr_state.rid == -1 ) {
3356 if ( sr->sr_state.ctxcsn ) {
3357 ber_bvarray_free_x( sr->sr_state.ctxcsn, op->o_tmpmemctx );
3358 sr->sr_state.ctxcsn = NULL;
3360 sr->sr_state.numcsns = 0;
3364 op->o_controls[slap_cids.sc_LDAPsync] = sr;
3366 op->o_sync = ctrl->ldctl_iscritical
3367 ? SLAP_CONTROL_CRITICAL
3368 : SLAP_CONTROL_NONCRITICAL;
3370 op->o_sync_mode |= mode; /* o_sync_mode shares o_sync */
3372 return LDAP_SUCCESS;
3375 /* This overlay is set up for dynamic loading via moduleload. For static
3376 * configuration, you'll need to arrange for the slap_overinst to be
3377 * initialized and registered by some other function inside slapd.
3380 static slap_overinst syncprov;
3383 syncprov_initialize()
3387 rc = register_supported_control( LDAP_CONTROL_SYNC,
3388 SLAP_CTRL_SEARCH, NULL,
3389 syncprov_parseCtrl, &slap_cids.sc_LDAPsync );
3390 if ( rc != LDAP_SUCCESS ) {
3391 Debug( LDAP_DEBUG_ANY,
3392 "syncprov_init: Failed to register control %d\n", rc, 0, 0 );
3396 syncprov.on_bi.bi_type = "syncprov";
3397 syncprov.on_bi.bi_db_init = syncprov_db_init;
3398 syncprov.on_bi.bi_db_destroy = syncprov_db_destroy;
3399 syncprov.on_bi.bi_db_open = syncprov_db_open;
3400 syncprov.on_bi.bi_db_close = syncprov_db_close;
3402 syncprov.on_bi.bi_op_abandon = syncprov_op_abandon;
3403 syncprov.on_bi.bi_op_cancel = syncprov_op_abandon;
3405 syncprov.on_bi.bi_op_add = syncprov_op_mod;
3406 syncprov.on_bi.bi_op_compare = syncprov_op_compare;
3407 syncprov.on_bi.bi_op_delete = syncprov_op_mod;
3408 syncprov.on_bi.bi_op_modify = syncprov_op_mod;
3409 syncprov.on_bi.bi_op_modrdn = syncprov_op_mod;
3410 syncprov.on_bi.bi_op_search = syncprov_op_search;
3411 syncprov.on_bi.bi_extended = syncprov_op_extended;
3412 syncprov.on_bi.bi_operational = syncprov_operational;
3414 syncprov.on_bi.bi_cf_ocs = spocs;
3416 generic_filter.f_desc = slap_schema.si_ad_objectClass;
3418 rc = config_register_schema( spcfg, spocs );
3419 if ( rc ) return rc;
3421 return overlay_register( &syncprov );
3424 #if SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC
3426 init_module( int argc, char *argv[] )
3428 return syncprov_initialize();
3430 #endif /* SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC */
3432 #endif /* defined(SLAPD_OVER_SYNCPROV) */