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 );
830 /* Send a persistent search response */
832 syncprov_sendresp( Operation *op, opcookie *opc, syncops *so, int mode )
834 SlapReply rs = { REP_SEARCH };
835 struct berval cookie, csns[2];
837 Attribute a_uuid = {0};
839 if ( so->s_op->o_abandon )
840 return SLAPD_ABANDON;
842 rs.sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2, op->o_tmpmemctx );
843 rs.sr_ctrls[1] = NULL;
844 rs.sr_flags = REP_CTRLS_MUSTBEFREED;
845 csns[0] = opc->sctxcsn;
846 BER_BVZERO( &csns[1] );
847 slap_compose_sync_cookie( op, &cookie, csns, so->s_rid, slap_serverID ? slap_serverID : -1 );
850 if ( so->s_sid > 0 ) {
851 Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: to=%03x, cookie=%s\n",
852 so->s_sid, cookie.bv_val, 0 );
854 Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: cookie=%s\n",
855 cookie.bv_val, 0, 0 );
859 e_uuid.e_attrs = &a_uuid;
860 a_uuid.a_desc = slap_schema.si_ad_entryUUID;
861 a_uuid.a_nvals = &opc->suuid;
862 rs.sr_err = syncprov_state_ctrl( op, &rs, &e_uuid,
863 mode, rs.sr_ctrls, 0, 1, &cookie );
864 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
866 rs.sr_entry = &e_uuid;
867 if ( mode == LDAP_SYNC_ADD || mode == LDAP_SYNC_MODIFY ) {
869 e_uuid.e_private = NULL;
874 if ( opc->sreference && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
875 rs.sr_ref = get_entry_referrals( op, rs.sr_entry );
876 rs.sr_err = send_search_reference( op, &rs );
877 ber_bvarray_free( rs.sr_ref );
881 case LDAP_SYNC_MODIFY:
882 rs.sr_attrs = op->ors_attrs;
883 rs.sr_err = send_search_entry( op, &rs );
885 case LDAP_SYNC_DELETE:
886 e_uuid.e_attrs = NULL;
887 e_uuid.e_name = opc->sdn;
888 e_uuid.e_nname = opc->sndn;
889 if ( opc->sreference && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
890 struct berval bv = BER_BVNULL;
892 rs.sr_err = send_search_reference( op, &rs );
894 rs.sr_err = send_search_entry( op, &rs );
904 syncprov_qstart( syncops *so );
906 /* Play back queued responses */
908 syncprov_qplay( Operation *op, syncops *so )
910 slap_overinst *on = LDAP_SLIST_FIRST(&so->s_op->o_extra)->oe_key;
918 ldap_pvt_thread_mutex_lock( &so->s_mutex );
920 /* Exit loop with mutex held */
923 so->s_res = sr->s_next;
925 so->s_restail = NULL;
926 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
928 if ( !so->s_op->o_abandon ) {
930 if ( sr->s_mode == LDAP_SYNC_NEW_COOKIE ) {
931 SlapReply rs = { REP_INTERMEDIATE };
933 rc = syncprov_sendinfo( op, &rs, LDAP_TAG_SYNC_NEW_COOKIE,
934 &sr->s_csn, 0, NULL, 0 );
937 opc.sndn = sr->s_ndn;
938 opc.suuid = sr->s_uuid;
939 opc.sctxcsn = sr->s_csn;
940 opc.sreference = sr->s_isreference;
943 rc = syncprov_sendresp( op, &opc, so, sr->s_mode );
948 if ( !dec_mutexint( sr->s_e->e_private )) {
949 sr->s_e->e_private = NULL;
950 entry_free ( sr->s_e );
955 if ( so->s_op->o_abandon )
958 /* Exit loop with mutex held */
959 ldap_pvt_thread_mutex_lock( &so->s_mutex );
964 /* We now only send one change at a time, to prevent one
965 * psearch from hogging all the CPU. Resubmit this task if
966 * there are more responses queued and no errors occurred.
969 if ( rc == 0 && so->s_res ) {
970 syncprov_qstart( so );
972 so->s_flags ^= PS_TASK_QUEUED;
975 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
979 /* task for playing back queued responses */
981 syncprov_qtask( void *ctx, void *arg )
984 OperationBuffer opbuf;
991 op->o_hdr = &opbuf.ob_hdr;
992 op->o_controls = opbuf.ob_controls;
993 memset( op->o_controls, 0, sizeof(opbuf.ob_controls) );
994 op->o_sync = SLAP_CONTROL_IGNORED;
996 *op->o_hdr = *so->s_op->o_hdr;
998 op->o_tmpmemctx = slap_sl_mem_create(SLAP_SLAB_SIZE, SLAP_SLAB_STACK, ctx, 1);
999 op->o_tmpmfuncs = &slap_sl_mfuncs;
1000 op->o_threadctx = ctx;
1002 /* syncprov_qplay expects a fake db */
1003 be = *so->s_op->o_bd;
1004 be.be_flags |= SLAP_DBFLAG_OVERLAY;
1006 LDAP_SLIST_FIRST(&op->o_extra) = NULL;
1007 op->o_callback = NULL;
1009 rc = syncprov_qplay( op, so );
1011 /* decrement use count... */
1012 syncprov_free_syncop( so );
1017 /* Start the task to play back queued psearch responses */
1019 syncprov_qstart( syncops *so )
1021 so->s_flags |= PS_TASK_QUEUED;
1023 ldap_pvt_thread_pool_submit( &connection_pool,
1024 syncprov_qtask, so );
1027 /* Queue a persistent search response */
1029 syncprov_qresp( opcookie *opc, syncops *so, int mode )
1033 struct berval cookie = opc->sctxcsn;
1035 if ( mode == LDAP_SYNC_NEW_COOKIE ) {
1036 syncprov_info_t *si = opc->son->on_bi.bi_private;
1038 slap_compose_sync_cookie( NULL, &cookie, si->si_ctxcsn,
1039 so->s_rid, slap_serverID ? slap_serverID : -1);
1042 srsize = sizeof(syncres) + opc->suuid.bv_len + 1 +
1043 opc->sdn.bv_len + 1 + opc->sndn.bv_len + 1;
1044 if ( cookie.bv_len )
1045 srsize += cookie.bv_len + 1;
1046 sr = ch_malloc( srsize );
1049 /* bump refcount on this entry */
1051 inc_mutexint( opc->se->e_private );
1052 sr->s_dn.bv_val = (char *)(sr + 1);
1053 sr->s_dn.bv_len = opc->sdn.bv_len;
1055 sr->s_isreference = opc->sreference;
1056 sr->s_ndn.bv_val = lutil_strcopy( sr->s_dn.bv_val,
1057 opc->sdn.bv_val ) + 1;
1058 sr->s_ndn.bv_len = opc->sndn.bv_len;
1059 sr->s_uuid.bv_val = lutil_strcopy( sr->s_ndn.bv_val,
1060 opc->sndn.bv_val ) + 1;
1061 sr->s_uuid.bv_len = opc->suuid.bv_len;
1062 AC_MEMCPY( sr->s_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1063 if ( cookie.bv_len ) {
1064 sr->s_csn.bv_val = sr->s_uuid.bv_val + sr->s_uuid.bv_len + 1;
1065 strcpy( sr->s_csn.bv_val, cookie.bv_val );
1067 sr->s_csn.bv_val = NULL;
1069 sr->s_csn.bv_len = cookie.bv_len;
1071 if ( mode == LDAP_SYNC_NEW_COOKIE && cookie.bv_val ) {
1072 ch_free( cookie.bv_val );
1075 ldap_pvt_thread_mutex_lock( &so->s_mutex );
1079 so->s_restail->s_next = sr;
1083 /* If the base of the psearch was modified, check it next time round */
1084 if ( so->s_flags & PS_WROTE_BASE ) {
1085 so->s_flags ^= PS_WROTE_BASE;
1086 so->s_flags |= PS_FIND_BASE;
1088 if (( so->s_flags & (PS_IS_DETACHED|PS_TASK_QUEUED)) == PS_IS_DETACHED ) {
1089 syncprov_qstart( so );
1091 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
1092 return LDAP_SUCCESS;
1096 syncprov_drop_psearch( syncops *so, int lock )
1098 if ( so->s_flags & PS_IS_DETACHED ) {
1100 ldap_pvt_thread_mutex_lock( &so->s_op->o_conn->c_mutex );
1101 so->s_op->o_conn->c_n_ops_executing--;
1102 so->s_op->o_conn->c_n_ops_completed++;
1103 LDAP_STAILQ_REMOVE( &so->s_op->o_conn->c_ops, so->s_op, Operation,
1106 ldap_pvt_thread_mutex_unlock( &so->s_op->o_conn->c_mutex );
1108 return 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( sc->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 op->o_callback = cb;
1152 return SLAP_CB_CONTINUE;
1155 syncprov_drop_psearch( so, 0 );
1157 return SLAP_CB_CONTINUE;
1160 /* Find which persistent searches are affected by this operation */
1162 syncprov_matchops( Operation *op, opcookie *opc, int saveit )
1164 slap_overinst *on = opc->son;
1165 syncprov_info_t *si = on->on_bi.bi_private;
1172 struct berval newdn;
1174 BackendDB *b0 = op->o_bd, db;
1176 fc.fdn = &op->o_req_ndn;
1177 /* compute new DN */
1178 if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1180 if ( op->orr_nnewSup ) pdn = *op->orr_nnewSup;
1181 else dnParent( fc.fdn, &pdn );
1182 build_new_dn( &newdn, &pdn, &op->orr_nnewrdn, op->o_tmpmemctx );
1186 if ( op->o_tag != LDAP_REQ_ADD ) {
1187 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1191 rc = overlay_entry_get_ov( op, fc.fdn, NULL, NULL, 0, &e, on );
1192 /* If we're sending responses now, make a copy and unlock the DB */
1193 if ( e && !saveit ) {
1195 opc->se = entry_dup( e );
1196 opc->se->e_private = get_mutexint();
1198 overlay_entry_release_ov( op, e, 0, on );
1209 opc->se = entry_dup( e );
1210 opc->se->e_private = get_mutexint();
1216 if ( saveit || op->o_tag == LDAP_REQ_ADD ) {
1217 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1218 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1219 opc->sreference = is_entry_referral( e );
1220 a = attr_find( e->e_attrs, slap_schema.si_ad_entryUUID );
1222 ber_dupbv_x( &opc->suuid, &a->a_nvals[0], op->o_tmpmemctx );
1223 } else if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1224 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1225 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1226 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1227 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1230 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1231 for (pss = &si->si_ops; *pss; pss = gonext ? &(*pss)->s_next : pss)
1237 syncops *snext, *ss = *pss;
1240 if ( ss->s_op->o_abandon )
1243 /* Don't send ops back to the originator */
1244 if ( opc->osid > 0 && opc->osid == ss->s_sid ) {
1245 Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping original sid %03x\n",
1250 /* Don't send ops back to the messenger */
1251 if ( opc->rsid > 0 && opc->rsid == ss->s_sid ) {
1252 Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping relayed sid %03x\n",
1262 /* If the base of the search is missing, signal a refresh */
1263 rc = syncprov_findbase( op, &fc );
1264 if ( rc != LDAP_SUCCESS ) {
1265 SlapReply rs = {REP_RESULT};
1266 send_ldap_error( ss->s_op, &rs, LDAP_SYNC_REFRESH_REQUIRED,
1267 "search base has changed" );
1269 if ( 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 rc = test_filter( &op2, e, op2.ors_filter );
1314 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
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
1346 if ( syncprov_free_syncop( ss ) ) {
1352 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1354 if ( op->o_tag != LDAP_REQ_ADD && e ) {
1355 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1359 overlay_entry_release_ov( op, e, 0, on );
1362 if ( opc->se && !saveit ) {
1363 if ( !dec_mutexint( opc->se->e_private )) {
1364 opc->se->e_private = NULL;
1365 entry_free( opc->se );
1370 op->o_tmpfree( fc.fdn->bv_val, op->o_tmpmemctx );
1376 syncprov_op_cleanup( Operation *op, SlapReply *rs )
1378 slap_callback *cb = op->o_callback;
1379 opcookie *opc = cb->sc_private;
1380 slap_overinst *on = opc->son;
1381 syncprov_info_t *si = on->on_bi.bi_private;
1382 syncmatches *sm, *snext;
1385 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1386 if ( si->si_active )
1388 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1390 for (sm = opc->smatches; sm; sm=snext) {
1391 snext = sm->sm_next;
1392 syncprov_free_syncop( sm->sm_op );
1393 op->o_tmpfree( sm, op->o_tmpmemctx );
1396 /* Remove op from lock table */
1399 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1400 mt->mt_mods = mt->mt_mods->mi_next;
1401 /* If there are more, promote the next one */
1402 if ( mt->mt_mods ) {
1403 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1405 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1406 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1407 avl_delete( &si->si_mods, mt, sp_avl_cmp );
1408 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1409 ldap_pvt_thread_mutex_destroy( &mt->mt_mutex );
1410 ch_free( mt->mt_dn.bv_val );
1414 if ( !BER_BVISNULL( &opc->suuid ))
1415 op->o_tmpfree( opc->suuid.bv_val, op->o_tmpmemctx );
1416 if ( !BER_BVISNULL( &opc->sndn ))
1417 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1418 if ( !BER_BVISNULL( &opc->sdn ))
1419 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1420 op->o_callback = cb->sc_next;
1421 op->o_tmpfree(cb, op->o_tmpmemctx);
1427 syncprov_checkpoint( Operation *op, slap_overinst *on )
1429 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
1432 SlapReply rsm = {REP_RESULT};
1433 slap_callback cb = {0};
1438 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1441 for ( i=0; i<si->si_numcsns; i++ ) {
1442 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1445 mod.sml_numvals = si->si_numcsns;
1446 mod.sml_values = si->si_ctxcsn;
1447 mod.sml_nvalues = NULL;
1448 mod.sml_desc = slap_schema.si_ad_contextCSN;
1449 mod.sml_op = LDAP_MOD_REPLACE;
1450 mod.sml_flags = SLAP_MOD_INTERNAL;
1451 mod.sml_next = NULL;
1453 cb.sc_response = slap_null_cb;
1455 opm.o_tag = LDAP_REQ_MODIFY;
1456 opm.o_callback = &cb;
1457 opm.orm_modlist = &mod;
1458 opm.orm_no_opattrs = 1;
1459 if ( SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1460 be = *on->on_info->oi_origdb;
1463 opm.o_req_dn = si->si_contextdn;
1464 opm.o_req_ndn = si->si_contextdn;
1465 bi = opm.o_bd->bd_info;
1466 opm.o_bd->bd_info = on->on_info->oi_orig;
1467 opm.o_managedsait = SLAP_CONTROL_NONCRITICAL;
1468 opm.o_no_schema_check = 1;
1469 opm.o_bd->be_modify( &opm, &rsm );
1471 if ( rsm.sr_err == LDAP_NO_SUCH_OBJECT &&
1472 SLAP_SYNC_SUBENTRY( opm.o_bd )) {
1474 char txtbuf[SLAP_TEXT_BUFLEN];
1475 size_t textlen = sizeof txtbuf;
1476 Entry *e = slap_create_context_csn_entry( opm.o_bd, NULL );
1477 rs_reinit( &rsm, REP_RESULT );
1478 slap_mods2entry( &mod, &e, 0, 1, &text, txtbuf, textlen);
1480 opm.o_bd->be_add( &opm, &rsm );
1481 if ( e == opm.ora_e )
1482 be_entry_release_w( &opm, opm.ora_e );
1484 opm.o_bd->bd_info = bi;
1486 if ( mod.sml_next != NULL ) {
1487 slap_mods_free( mod.sml_next, 1 );
1490 for ( i=0; i<si->si_numcsns; i++ ) {
1491 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1497 syncprov_add_slog( Operation *op )
1499 opcookie *opc = op->o_callback->sc_private;
1500 slap_overinst *on = opc->son;
1501 syncprov_info_t *si = on->on_bi.bi_private;
1507 if ( BER_BVISEMPTY( &op->o_csn ) ) {
1508 /* During the syncrepl refresh phase we can receive operations
1509 * without a csn. We cannot reliably determine the consumers
1510 * state with respect to such operations, so we ignore them and
1511 * wipe out anything in the log if we see them.
1513 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1514 while ( se = sl->sl_head ) {
1515 sl->sl_head = se->se_next;
1520 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1524 /* Allocate a record. UUIDs are not NUL-terminated. */
1525 se = ch_malloc( sizeof( slog_entry ) + opc->suuid.bv_len +
1526 op->o_csn.bv_len + 1 );
1528 se->se_tag = op->o_tag;
1530 se->se_uuid.bv_val = (char *)(&se[1]);
1531 AC_MEMCPY( se->se_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1532 se->se_uuid.bv_len = opc->suuid.bv_len;
1534 se->se_csn.bv_val = se->se_uuid.bv_val + opc->suuid.bv_len;
1535 AC_MEMCPY( se->se_csn.bv_val, op->o_csn.bv_val, op->o_csn.bv_len );
1536 se->se_csn.bv_val[op->o_csn.bv_len] = '\0';
1537 se->se_csn.bv_len = op->o_csn.bv_len;
1538 se->se_sid = slap_parse_csn_sid( &se->se_csn );
1540 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1541 if ( sl->sl_head ) {
1542 /* Keep the list in csn order. */
1543 if ( ber_bvcmp( &sl->sl_tail->se_csn, &se->se_csn ) <= 0 ) {
1544 sl->sl_tail->se_next = se;
1549 for ( sep = &sl->sl_head; *sep; sep = &(*sep)->se_next ) {
1550 if ( ber_bvcmp( &se->se_csn, &(*sep)->se_csn ) < 0 ) {
1560 if ( !sl->sl_mincsn ) {
1562 sl->sl_mincsn = ch_malloc( 2*sizeof( struct berval ));
1563 sl->sl_sids = ch_malloc( sizeof( int ));
1564 sl->sl_sids[0] = se->se_sid;
1565 ber_dupbv( sl->sl_mincsn, &se->se_csn );
1566 BER_BVZERO( &sl->sl_mincsn[1] );
1570 while ( sl->sl_num > sl->sl_size ) {
1573 sl->sl_head = se->se_next;
1574 for ( i=0; i<sl->sl_numcsns; i++ )
1575 if ( sl->sl_sids[i] >= se->se_sid )
1577 if ( i == sl->sl_numcsns || sl->sl_sids[i] != se->se_sid ) {
1578 slap_insert_csn_sids( (struct sync_cookie *)sl,
1579 i, se->se_sid, &se->se_csn );
1581 ber_bvreplace( &sl->sl_mincsn[i], &se->se_csn );
1586 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1590 /* Just set a flag if we found the matching entry */
1592 playlog_cb( Operation *op, SlapReply *rs )
1594 if ( rs->sr_type == REP_SEARCH ) {
1595 op->o_callback->sc_private = (void *)1;
1600 /* enter with sl->sl_mutex locked, release before returning */
1602 syncprov_playlog( Operation *op, SlapReply *rs, sessionlog *sl,
1603 sync_control *srs, BerVarray ctxcsn, int numcsns, int *sids )
1605 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1607 int i, j, ndel, num, nmods, mmods;
1608 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
1610 struct berval delcsn[2];
1612 if ( !sl->sl_num ) {
1613 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1621 uuids = op->o_tmpalloc( (num+1) * sizeof( struct berval ) +
1622 num * UUID_LEN, op->o_tmpmemctx );
1623 uuids[0].bv_val = (char *)(uuids + num + 1);
1625 delcsn[0].bv_len = 0;
1626 delcsn[0].bv_val = cbuf;
1627 BER_BVZERO(&delcsn[1]);
1629 /* Make a copy of the relevant UUIDs. Put the Deletes up front
1630 * and everything else at the end. Do this first so we can
1631 * unlock the list mutex.
1633 Debug( LDAP_DEBUG_SYNC, "srs csn %s\n",
1634 srs->sr_state.ctxcsn[0].bv_val, 0, 0 );
1635 for ( se=sl->sl_head; se; se=se->se_next ) {
1637 Debug( LDAP_DEBUG_SYNC, "log csn %s\n", se->se_csn.bv_val, 0, 0 );
1639 for ( k=0; k<srs->sr_state.numcsns; k++ ) {
1640 if ( se->se_sid == srs->sr_state.sids[k] ) {
1641 ndel = ber_bvcmp( &se->se_csn, &srs->sr_state.ctxcsn[k] );
1646 Debug( LDAP_DEBUG_SYNC, "cmp %d, too old\n", ndel, 0, 0 );
1650 for ( k=0; k<numcsns; k++ ) {
1651 if ( se->se_sid == sids[k] ) {
1652 ndel = ber_bvcmp( &se->se_csn, &ctxcsn[k] );
1657 Debug( LDAP_DEBUG_SYNC, "cmp %d, too new\n", ndel, 0, 0 );
1660 if ( se->se_tag == LDAP_REQ_DELETE ) {
1663 AC_MEMCPY( cbuf, se->se_csn.bv_val, se->se_csn.bv_len );
1664 delcsn[0].bv_len = se->se_csn.bv_len;
1665 delcsn[0].bv_val[delcsn[0].bv_len] = '\0';
1667 if ( se->se_tag == LDAP_REQ_ADD )
1672 uuids[j].bv_val = uuids[0].bv_val + (j * UUID_LEN);
1673 AC_MEMCPY(uuids[j].bv_val, se->se_uuid.bv_val, UUID_LEN);
1674 uuids[j].bv_len = UUID_LEN;
1676 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1680 /* Zero out unused slots */
1681 for ( i=ndel; i < num - nmods; i++ )
1682 uuids[i].bv_len = 0;
1684 /* Mods must be validated to see if they belong in this delete set.
1688 /* Strip any duplicates */
1689 for ( i=0; i<nmods; i++ ) {
1690 for ( j=0; j<ndel; j++ ) {
1691 if ( bvmatch( &uuids[j], &uuids[num - 1 - i] )) {
1692 uuids[num - 1 - i].bv_len = 0;
1697 if ( uuids[num - 1 - i].bv_len == 0 ) continue;
1698 for ( j=0; j<i; j++ ) {
1699 if ( bvmatch( &uuids[num - 1 - j], &uuids[num - 1 - i] )) {
1700 uuids[num - 1 - i].bv_len = 0;
1711 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
1712 slap_callback cb = {0};
1716 fop.o_sync_mode = 0;
1717 fop.o_callback = &cb;
1718 fop.ors_limit = NULL;
1719 fop.ors_tlimit = SLAP_NO_LIMIT;
1720 fop.ors_attrs = slap_anlist_all_attributes;
1721 fop.ors_attrsonly = 0;
1722 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
1724 af.f_choice = LDAP_FILTER_AND;
1727 mf.f_choice = LDAP_FILTER_EQUALITY;
1729 mf.f_av_desc = slap_schema.si_ad_entryUUID;
1730 mf.f_next = fop.ors_filter;
1732 fop.ors_filter = ⁡
1734 cb.sc_response = playlog_cb;
1735 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
1737 for ( i=ndel; i<num; i++ ) {
1738 if ( uuids[i].bv_len != 0 ) {
1739 SlapReply frs = { REP_RESULT };
1741 mf.f_av_value = uuids[i];
1742 cb.sc_private = NULL;
1744 rc = fop.o_bd->be_search( &fop, &frs );
1746 /* If entry was not found, add to delete list */
1747 if ( !cb.sc_private ) {
1748 uuids[ndel++] = uuids[i];
1752 fop.o_bd->bd_info = (BackendInfo *)on;
1755 struct berval cookie;
1757 if ( delcsn[0].bv_len ) {
1758 slap_compose_sync_cookie( op, &cookie, delcsn, srs->sr_state.rid,
1759 slap_serverID ? slap_serverID : -1 );
1761 Debug( LDAP_DEBUG_SYNC, "syncprov_playlog: cookie=%s\n", cookie.bv_val, 0, 0 );
1764 uuids[ndel].bv_val = NULL;
1765 syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET,
1766 delcsn[0].bv_len ? &cookie : NULL, 0, uuids, 1 );
1767 if ( delcsn[0].bv_len ) {
1768 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
1771 op->o_tmpfree( uuids, op->o_tmpmemctx );
1775 syncprov_op_response( Operation *op, SlapReply *rs )
1777 opcookie *opc = op->o_callback->sc_private;
1778 slap_overinst *on = opc->son;
1779 syncprov_info_t *si = on->on_bi.bi_private;
1782 if ( rs->sr_err == LDAP_SUCCESS )
1784 struct berval maxcsn;
1785 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
1786 int do_check = 0, have_psearches, foundit, csn_changed = 0;
1788 ldap_pvt_thread_mutex_lock( &si->si_resp_mutex );
1790 /* Update our context CSN */
1792 maxcsn.bv_val = cbuf;
1793 maxcsn.bv_len = sizeof(cbuf);
1794 ldap_pvt_thread_rdwr_wlock( &si->si_csn_rwlock );
1796 slap_get_commit_csn( op, &maxcsn, &foundit );
1797 if ( BER_BVISEMPTY( &maxcsn ) && SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1798 /* syncrepl queues the CSN values in the db where
1799 * it is configured , not where the changes are made.
1800 * So look for a value in the glue db if we didn't
1801 * find any in this db.
1803 BackendDB *be = op->o_bd;
1804 op->o_bd = select_backend( &be->be_nsuffix[0], 1);
1805 maxcsn.bv_val = cbuf;
1806 maxcsn.bv_len = sizeof(cbuf);
1807 slap_get_commit_csn( op, &maxcsn, &foundit );
1810 if ( !BER_BVISEMPTY( &maxcsn ) ) {
1813 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1814 assert( !syn->ssyn_validate( syn, &maxcsn ));
1816 sid = slap_parse_csn_sid( &maxcsn );
1817 for ( i=0; i<si->si_numcsns; i++ ) {
1818 if ( sid < si->si_sids[i] )
1820 if ( sid == si->si_sids[i] ) {
1821 if ( ber_bvcmp( &maxcsn, &si->si_ctxcsn[i] ) > 0 ) {
1822 ber_bvreplace( &si->si_ctxcsn[i], &maxcsn );
1828 /* It's a new SID for us */
1829 if ( i == si->si_numcsns || sid != si->si_sids[i] ) {
1830 slap_insert_csn_sids((struct sync_cookie *)&(si->si_ctxcsn),
1836 /* Don't do any processing for consumer contextCSN updates */
1837 if ( op->o_dont_replicate ) {
1838 if ( op->o_tag == LDAP_REQ_MODIFY &&
1839 op->orm_modlist->sml_op == LDAP_MOD_REPLACE &&
1840 op->orm_modlist->sml_desc == slap_schema.si_ad_contextCSN ) {
1841 /* Catch contextCSN updates from syncrepl. We have to look at
1842 * all the attribute values, as there may be more than one csn
1843 * that changed, and only one can be passed in the csn queue.
1845 Modifications *mod = op->orm_modlist;
1849 for ( i=0; i<mod->sml_numvals; i++ ) {
1850 sid = slap_parse_csn_sid( &mod->sml_values[i] );
1851 for ( j=0; j<si->si_numcsns; j++ ) {
1852 if ( sid < si->si_sids[j] )
1854 if ( sid == si->si_sids[j] ) {
1855 if ( ber_bvcmp( &mod->sml_values[i], &si->si_ctxcsn[j] ) > 0 ) {
1856 ber_bvreplace( &si->si_ctxcsn[j], &mod->sml_values[i] );
1863 if ( j == si->si_numcsns || sid != si->si_sids[j] ) {
1864 slap_insert_csn_sids( (struct sync_cookie *)&si->si_ctxcsn,
1865 j, sid, &mod->sml_values[i] );
1871 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1873 if ( csn_changed ) {
1875 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1876 for ( ss = si->si_ops; ss; ss = ss->s_next ) {
1877 if ( ss->s_op->o_abandon )
1879 /* Send the updated csn to all syncrepl consumers,
1880 * including the server from which it originated.
1881 * The syncrepl consumer and syncprov provider on
1882 * the originating server may be configured to store
1883 * their csn values in different entries.
1885 syncprov_qresp( opc, ss, LDAP_SYNC_NEW_COOKIE );
1887 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1890 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1896 if ( si->si_chkops || si->si_chktime ) {
1897 /* Never checkpoint adding the context entry,
1900 if ( op->o_tag != LDAP_REQ_ADD ||
1901 !dn_match( &op->o_req_ndn, &si->si_contextdn )) {
1902 if ( si->si_chkops && si->si_numops >= si->si_chkops ) {
1906 if ( si->si_chktime &&
1907 (op->o_time - si->si_chklast >= si->si_chktime )) {
1908 if ( si->si_chklast ) {
1910 si->si_chklast = op->o_time;
1917 si->si_dirty = !csn_changed;
1918 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1921 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1922 syncprov_checkpoint( op, on );
1923 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1926 /* only update consumer ctx if this is a newer csn */
1927 if ( csn_changed ) {
1928 opc->sctxcsn = maxcsn;
1931 /* Handle any persistent searches */
1932 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1933 have_psearches = ( si->si_ops != NULL );
1934 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1935 if ( have_psearches ) {
1938 case LDAP_REQ_MODIFY:
1939 case LDAP_REQ_MODRDN:
1940 case LDAP_REQ_EXTENDED:
1941 syncprov_matchops( op, opc, 0 );
1943 case LDAP_REQ_DELETE:
1944 /* for each match in opc->smatches:
1947 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1948 if ( sm->sm_op->s_op->o_abandon )
1950 syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_DELETE );
1956 /* Add any log records */
1957 if ( si->si_logs ) {
1958 syncprov_add_slog( op );
1960 leave: ldap_pvt_thread_mutex_unlock( &si->si_resp_mutex );
1962 return SLAP_CB_CONTINUE;
1965 /* We don't use a subentry to store the context CSN any more.
1966 * We expose the current context CSN as an operational attribute
1967 * of the suffix entry.
1970 syncprov_op_compare( Operation *op, SlapReply *rs )
1972 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1973 syncprov_info_t *si = on->on_bi.bi_private;
1974 int rc = SLAP_CB_CONTINUE;
1976 if ( dn_match( &op->o_req_ndn, &si->si_contextdn ) &&
1977 op->oq_compare.rs_ava->aa_desc == slap_schema.si_ad_contextCSN )
1982 e.e_name = si->si_contextdn;
1983 e.e_nname = si->si_contextdn;
1986 a.a_desc = slap_schema.si_ad_contextCSN;
1988 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1990 a.a_vals = si->si_ctxcsn;
1991 a.a_nvals = a.a_vals;
1992 a.a_numvals = si->si_numcsns;
1994 rs->sr_err = access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc,
1995 &op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL );
1996 if ( ! rs->sr_err ) {
1997 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1998 goto return_results;
2001 if ( get_assert( op ) &&
2002 ( test_filter( op, &e, get_assertion( op ) ) != LDAP_COMPARE_TRUE ) )
2004 rs->sr_err = LDAP_ASSERTION_FAILED;
2005 goto return_results;
2009 rs->sr_err = LDAP_COMPARE_FALSE;
2011 if ( attr_valfind( &a,
2012 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
2013 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
2014 &op->oq_compare.rs_ava->aa_value, NULL, op->o_tmpmemctx ) == 0 )
2016 rs->sr_err = LDAP_COMPARE_TRUE;
2021 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2023 send_ldap_result( op, rs );
2025 if( rs->sr_err == LDAP_COMPARE_FALSE || rs->sr_err == LDAP_COMPARE_TRUE ) {
2026 rs->sr_err = LDAP_SUCCESS;
2035 syncprov_op_mod( Operation *op, SlapReply *rs )
2037 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2038 syncprov_info_t *si = on->on_bi.bi_private;
2041 int have_psearches, cbsize;
2043 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2044 have_psearches = ( si->si_ops != NULL );
2046 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2048 cbsize = sizeof(slap_callback) + sizeof(opcookie) +
2049 (have_psearches ? sizeof(modinst) : 0 );
2051 cb = op->o_tmpcalloc(1, cbsize, op->o_tmpmemctx);
2052 opc = (opcookie *)(cb+1);
2054 cb->sc_response = syncprov_op_response;
2055 cb->sc_cleanup = syncprov_op_cleanup;
2056 cb->sc_private = opc;
2057 cb->sc_next = op->o_callback;
2058 op->o_callback = cb;
2062 if ( op->o_csn.bv_val ) {
2063 opc->osid = slap_parse_csn_sid( &op->o_csn );
2065 if ( op->o_controls ) {
2066 struct sync_cookie *scook =
2067 op->o_controls[slap_cids.sc_LDAPsync];
2069 opc->rsid = scook->sid;
2072 if ( op->o_dont_replicate )
2073 return SLAP_CB_CONTINUE;
2075 /* If there are active persistent searches, lock this operation.
2076 * See seqmod.c for the locking logic on its own.
2078 if ( have_psearches ) {
2079 modtarget *mt, mtdummy;
2082 mi = (modinst *)(opc+1);
2085 /* See if we're already modifying this entry... */
2086 mtdummy.mt_dn = op->o_req_ndn;
2087 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
2088 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
2090 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
2091 if ( mt->mt_mods == NULL ) {
2092 /* Cannot reuse this mt, as another thread is about
2093 * to release it in syncprov_op_cleanup.
2095 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2100 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
2101 mt->mt_tail->mi_next = mi;
2103 /* wait for this op to get to head of list */
2104 while ( mt->mt_mods != mi ) {
2105 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2106 /* FIXME: if dynamic config can delete overlays or
2107 * databases we'll have to check for cleanup here.
2108 * Currently it's not an issue because there are
2109 * no dynamic config deletes...
2111 if ( slapd_shutdown )
2112 return SLAPD_ABANDON;
2114 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
2115 ldap_pvt_thread_yield();
2116 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
2118 /* clean up if the caller is giving up */
2119 if ( op->o_abandon ) {
2121 for ( m2 = mt->mt_mods; m2 && m2->mi_next != mi;
2124 m2->mi_next = mi->mi_next;
2125 if ( mt->mt_tail == mi ) mt->mt_tail = m2;
2127 op->o_tmpfree( cb, op->o_tmpmemctx );
2128 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2129 return SLAPD_ABANDON;
2132 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2134 /* Record that we're modifying this entry now */
2135 mt = ch_malloc( sizeof(modtarget) );
2138 ber_dupbv( &mt->mt_dn, &mi->mi_op->o_req_ndn );
2139 ldap_pvt_thread_mutex_init( &mt->mt_mutex );
2140 avl_insert( &si->si_mods, mt, sp_avl_cmp, avl_dup_error );
2141 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
2146 if (( have_psearches || si->si_logs ) && op->o_tag != LDAP_REQ_ADD )
2147 syncprov_matchops( op, opc, 1 );
2149 return SLAP_CB_CONTINUE;
2153 syncprov_op_extended( Operation *op, SlapReply *rs )
2155 if ( exop_is_write( op ))
2156 return syncprov_op_mod( op, rs );
2158 return SLAP_CB_CONTINUE;
2161 typedef struct searchstate {
2162 slap_overinst *ss_on;
2164 BerVarray ss_ctxcsn;
2167 #define SS_PRESENT 0x01
2168 #define SS_CHANGED 0x02
2172 typedef struct SyncOperationBuffer {
2176 AttributeName sob_extra; /* not always present */
2177 /* Further data allocated here */
2178 } SyncOperationBuffer;
2181 syncprov_detach_op( Operation *op, syncops *so, slap_overinst *on )
2183 SyncOperationBuffer *sopbuf2;
2188 GroupAssertion *g1, *g2;
2190 /* count the search attrs */
2191 for (i=0; op->ors_attrs && !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2192 alen += op->ors_attrs[i].an_name.bv_len + 1;
2194 /* Make a new copy of the operation */
2195 size = offsetof( SyncOperationBuffer, sob_extra ) +
2196 (i ? ( (i+1) * sizeof(AttributeName) + alen) : 0) +
2197 op->o_req_dn.bv_len + 1 +
2198 op->o_req_ndn.bv_len + 1 +
2199 op->o_ndn.bv_len + 1 +
2200 so->s_filterstr.bv_len + 1;
2201 sopbuf2 = ch_calloc( 1, size );
2202 op2 = &sopbuf2->sob_op;
2203 op2->o_hdr = &sopbuf2->sob_hdr;
2204 LDAP_SLIST_FIRST(&op2->o_extra) = &sopbuf2->sob_oe;
2206 /* Copy the fields we care about explicitly, leave the rest alone */
2207 *op2->o_hdr = *op->o_hdr;
2208 op2->o_tag = op->o_tag;
2209 op2->o_time = op->o_time;
2210 op2->o_bd = on->on_info->oi_origdb;
2211 op2->o_request = op->o_request;
2212 op2->o_managedsait = op->o_managedsait;
2213 LDAP_SLIST_FIRST(&op2->o_extra)->oe_key = on;
2214 LDAP_SLIST_NEXT(LDAP_SLIST_FIRST(&op2->o_extra), oe_next) = NULL;
2216 ptr = (char *) sopbuf2 + offsetof( SyncOperationBuffer, sob_extra );
2218 op2->ors_attrs = (AttributeName *) ptr;
2219 ptr = (char *) &op2->ors_attrs[i+1];
2220 for (i=0; !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2221 op2->ors_attrs[i] = op->ors_attrs[i];
2222 op2->ors_attrs[i].an_name.bv_val = ptr;
2223 ptr = lutil_strcopy( ptr, op->ors_attrs[i].an_name.bv_val ) + 1;
2225 BER_BVZERO( &op2->ors_attrs[i].an_name );
2228 op2->o_authz = op->o_authz;
2229 op2->o_ndn.bv_val = ptr;
2230 ptr = lutil_strcopy(ptr, op->o_ndn.bv_val) + 1;
2231 op2->o_dn = op2->o_ndn;
2232 op2->o_req_dn.bv_len = op->o_req_dn.bv_len;
2233 op2->o_req_dn.bv_val = ptr;
2234 ptr = lutil_strcopy(ptr, op->o_req_dn.bv_val) + 1;
2235 op2->o_req_ndn.bv_len = op->o_req_ndn.bv_len;
2236 op2->o_req_ndn.bv_val = ptr;
2237 ptr = lutil_strcopy(ptr, op->o_req_ndn.bv_val) + 1;
2238 op2->ors_filterstr.bv_val = ptr;
2239 strcpy( ptr, so->s_filterstr.bv_val );
2240 op2->ors_filterstr.bv_len = so->s_filterstr.bv_len;
2242 /* Skip the AND/GE clause that we stuck on in front */
2243 if ( so->s_flags & PS_FIX_FILTER ) {
2244 op2->ors_filter = op->ors_filter->f_and->f_next;
2245 so->s_flags ^= PS_FIX_FILTER;
2247 op2->ors_filter = op->ors_filter;
2249 op2->ors_filter = filter_dup( op2->ors_filter, NULL );
2252 /* Copy any cached group ACLs individually */
2253 op2->o_groups = NULL;
2254 for ( g1=op->o_groups; g1; g1=g1->ga_next ) {
2255 g2 = ch_malloc( sizeof(GroupAssertion) + g1->ga_len );
2257 strcpy( g2->ga_ndn, g1->ga_ndn );
2258 g2->ga_next = op2->o_groups;
2261 /* Don't allow any further group caching */
2262 op2->o_do_not_cache = 1;
2264 /* Add op2 to conn so abandon will find us */
2265 op->o_conn->c_n_ops_executing++;
2266 op->o_conn->c_n_ops_completed--;
2267 LDAP_STAILQ_INSERT_TAIL( &op->o_conn->c_ops, op2, o_next );
2268 so->s_flags |= PS_IS_DETACHED;
2270 /* Prevent anyone else from trying to send a result for this op */
2275 syncprov_search_response( Operation *op, SlapReply *rs )
2277 searchstate *ss = op->o_callback->sc_private;
2278 slap_overinst *on = ss->ss_on;
2279 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2280 sync_control *srs = op->o_controls[slap_cids.sc_LDAPsync];
2282 if ( rs->sr_type == REP_SEARCH || rs->sr_type == REP_SEARCHREF ) {
2284 /* If we got a referral without a referral object, there's
2285 * something missing that we cannot replicate. Just ignore it.
2286 * The consumer will abort because we didn't send the expected
2289 if ( !rs->sr_entry ) {
2290 assert( rs->sr_entry != NULL );
2291 Debug( LDAP_DEBUG_ANY, "bogus referral in context\n",0,0,0 );
2292 return SLAP_CB_CONTINUE;
2294 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryCSN );
2295 if ( a == NULL && rs->sr_operational_attrs != NULL ) {
2296 a = attr_find( rs->sr_operational_attrs, slap_schema.si_ad_entryCSN );
2300 sid = slap_parse_csn_sid( &a->a_nvals[0] );
2302 /* Don't send changed entries back to the originator */
2303 if ( sid == srs->sr_state.sid && srs->sr_state.numcsns ) {
2304 Debug( LDAP_DEBUG_SYNC,
2305 "Entry %s changed by peer, ignored\n",
2306 rs->sr_entry->e_name.bv_val, 0, 0 );
2307 return LDAP_SUCCESS;
2310 /* If not a persistent search */
2312 /* Make sure entry is less than the snapshot'd contextCSN */
2313 for ( i=0; i<ss->ss_numcsns; i++ ) {
2314 if ( sid == ss->ss_sids[i] && ber_bvcmp( &a->a_nvals[0],
2315 &ss->ss_ctxcsn[i] ) > 0 ) {
2316 Debug( LDAP_DEBUG_SYNC,
2317 "Entry %s CSN %s greater than snapshot %s\n",
2318 rs->sr_entry->e_name.bv_val,
2319 a->a_nvals[0].bv_val,
2320 ss->ss_ctxcsn[i].bv_val );
2321 return LDAP_SUCCESS;
2326 /* Don't send old entries twice */
2327 if ( srs->sr_state.ctxcsn ) {
2328 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2329 if ( sid == srs->sr_state.sids[i] &&
2330 ber_bvcmp( &a->a_nvals[0],
2331 &srs->sr_state.ctxcsn[i] )<= 0 ) {
2332 Debug( LDAP_DEBUG_SYNC,
2333 "Entry %s CSN %s older or equal to ctx %s\n",
2334 rs->sr_entry->e_name.bv_val,
2335 a->a_nvals[0].bv_val,
2336 srs->sr_state.ctxcsn[i].bv_val );
2337 return LDAP_SUCCESS;
2342 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2344 rs->sr_ctrls[1] = NULL;
2345 rs->sr_flags |= REP_CTRLS_MUSTBEFREED;
2346 /* If we're in delta-sync mode, always send a cookie */
2347 if ( si->si_nopres && si->si_usehint && a ) {
2348 struct berval cookie;
2349 slap_compose_sync_cookie( op, &cookie, a->a_nvals, srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
2350 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2351 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 1, &cookie );
2352 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2354 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2355 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 0, NULL );
2357 } else if ( rs->sr_type == REP_RESULT && rs->sr_err == LDAP_SUCCESS ) {
2358 struct berval cookie = BER_BVNULL;
2360 if ( ( ss->ss_flags & SS_CHANGED ) &&
2361 ss->ss_ctxcsn && !BER_BVISNULL( &ss->ss_ctxcsn[0] )) {
2362 slap_compose_sync_cookie( op, &cookie, ss->ss_ctxcsn,
2363 srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
2365 Debug( LDAP_DEBUG_SYNC, "syncprov_search_response: cookie=%s\n", cookie.bv_val, 0, 0 );
2368 /* Is this a regular refresh?
2369 * Note: refresh never gets here if there were no changes
2372 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2374 rs->sr_ctrls[1] = NULL;
2375 rs->sr_flags |= REP_CTRLS_MUSTBEFREED;
2376 rs->sr_err = syncprov_done_ctrl( op, rs, rs->sr_ctrls,
2377 0, 1, &cookie, ( ss->ss_flags & SS_PRESENT ) ? LDAP_SYNC_REFRESH_PRESENTS :
2378 LDAP_SYNC_REFRESH_DELETES );
2379 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2381 /* It's RefreshAndPersist, transition to Persist phase */
2382 syncprov_sendinfo( op, rs, ( ss->ss_flags & SS_PRESENT ) ?
2383 LDAP_TAG_SYNC_REFRESH_PRESENT : LDAP_TAG_SYNC_REFRESH_DELETE,
2384 ( ss->ss_flags & SS_CHANGED ) ? &cookie : NULL,
2386 if ( !BER_BVISNULL( &cookie ))
2387 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2389 /* Detach this Op from frontend control */
2390 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
2392 /* But not if this connection was closed along the way */
2393 if ( op->o_abandon ) {
2394 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2395 /* syncprov_ab_cleanup will free this syncop */
2396 return SLAPD_ABANDON;
2399 ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex );
2400 /* Turn off the refreshing flag */
2401 ss->ss_so->s_flags ^= PS_IS_REFRESHING;
2403 syncprov_detach_op( op, ss->ss_so, on );
2405 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2407 /* If there are queued responses, fire them off */
2408 if ( ss->ss_so->s_res )
2409 syncprov_qstart( ss->ss_so );
2410 ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
2413 return LDAP_SUCCESS;
2417 return SLAP_CB_CONTINUE;
2421 syncprov_op_search( Operation *op, SlapReply *rs )
2423 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2424 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2426 int gotstate = 0, changed = 0, do_present = 0;
2427 syncops *sop = NULL;
2431 int i, *sids, numcsns;
2432 struct berval mincsn, maxcsn;
2436 if ( !(op->o_sync_mode & SLAP_SYNC_REFRESH) ) return SLAP_CB_CONTINUE;
2438 if ( op->ors_deref & LDAP_DEREF_SEARCHING ) {
2439 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR, "illegal value for derefAliases" );
2443 srs = op->o_controls[slap_cids.sc_LDAPsync];
2445 /* If this is a persistent search, set it up right away */
2446 if ( op->o_sync_mode & SLAP_SYNC_PERSIST ) {
2456 so.s_flags = PS_IS_REFRESHING | PS_FIND_BASE;
2457 /* syncprov_findbase expects to be called as a callback... */
2458 sc.sc_private = &opc;
2460 ldap_pvt_thread_mutex_init( &so.s_mutex );
2461 cb = op->o_callback;
2462 op->o_callback = ≻
2463 rs->sr_err = syncprov_findbase( op, &fc );
2464 op->o_callback = cb;
2465 ldap_pvt_thread_mutex_destroy( &so.s_mutex );
2467 if ( rs->sr_err != LDAP_SUCCESS ) {
2468 send_ldap_result( op, rs );
2471 sop = ch_malloc( sizeof( syncops ));
2473 ldap_pvt_thread_mutex_init( &sop->s_mutex );
2474 sop->s_rid = srs->sr_state.rid;
2475 sop->s_sid = srs->sr_state.sid;
2476 /* set refcount=2 to prevent being freed out from under us
2477 * by abandons that occur while we're running here
2481 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2482 while ( si->si_active ) {
2483 /* Wait for active mods to finish before proceeding, as they
2484 * may already have inspected the si_ops list looking for
2485 * consumers to replicate the change to. Using the log
2486 * doesn't help, as we may finish playing it before the
2487 * active mods gets added to it.
2489 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2490 if ( slapd_shutdown ) {
2492 return SLAPD_ABANDON;
2494 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
2495 ldap_pvt_thread_yield();
2496 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2498 sop->s_next = si->si_ops;
2500 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2503 /* snapshot the ctxcsn */
2504 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2505 numcsns = si->si_numcsns;
2507 ber_bvarray_dup_x( &ctxcsn, si->si_ctxcsn, op->o_tmpmemctx );
2508 sids = op->o_tmpalloc( numcsns * sizeof(int), op->o_tmpmemctx );
2509 for ( i=0; i<numcsns; i++ )
2510 sids[i] = si->si_sids[i];
2515 dirty = si->si_dirty;
2516 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2518 /* If we have a cookie, handle the PRESENT lookups */
2519 if ( srs->sr_state.ctxcsn ) {
2523 /* If we don't have any CSN of our own yet, pretend nothing
2529 if ( !si->si_nopres )
2530 do_present = SS_PRESENT;
2532 /* If there are SIDs we don't recognize in the cookie, drop them */
2533 for (i=0; i<srs->sr_state.numcsns; ) {
2534 for (j=i; j<numcsns; j++) {
2535 if ( srs->sr_state.sids[i] <= sids[j] ) {
2540 if ( j == numcsns || srs->sr_state.sids[i] != sids[j] ) {
2541 char *tmp = srs->sr_state.ctxcsn[i].bv_val;
2542 srs->sr_state.numcsns--;
2543 for ( j=i; j<srs->sr_state.numcsns; j++ ) {
2544 srs->sr_state.ctxcsn[j] = srs->sr_state.ctxcsn[j+1];
2545 srs->sr_state.sids[j] = srs->sr_state.sids[j+1];
2547 srs->sr_state.ctxcsn[j].bv_val = tmp;
2548 srs->sr_state.ctxcsn[j].bv_len = 0;
2554 if (srs->sr_state.numcsns != numcsns) {
2555 /* consumer doesn't have the right number of CSNs */
2556 changed = SS_CHANGED;
2557 if ( srs->sr_state.ctxcsn ) {
2558 ber_bvarray_free_x( srs->sr_state.ctxcsn, op->o_tmpmemctx );
2559 srs->sr_state.ctxcsn = NULL;
2561 if ( srs->sr_state.sids ) {
2562 slap_sl_free( srs->sr_state.sids, op->o_tmpmemctx );
2563 srs->sr_state.sids = NULL;
2565 srs->sr_state.numcsns = 0;
2569 /* Find the smallest CSN which differs from contextCSN */
2572 for ( i=0,j=0; i<srs->sr_state.numcsns; i++ ) {
2574 while ( srs->sr_state.sids[i] != sids[j] ) j++;
2575 if ( BER_BVISEMPTY( &maxcsn ) || ber_bvcmp( &maxcsn,
2576 &srs->sr_state.ctxcsn[i] ) < 0 ) {
2577 maxcsn = srs->sr_state.ctxcsn[i];
2580 newer = ber_bvcmp( &srs->sr_state.ctxcsn[i], &ctxcsn[j] );
2581 /* If our state is newer, tell consumer about changes */
2583 changed = SS_CHANGED;
2584 if ( BER_BVISEMPTY( &mincsn ) || ber_bvcmp( &mincsn,
2585 &srs->sr_state.ctxcsn[i] ) > 0 ) {
2586 mincsn = srs->sr_state.ctxcsn[i];
2589 } else if ( newer > 0 && sids[j] == slap_serverID ) {
2590 /* our state is older, complain to consumer */
2591 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
2592 rs->sr_text = "consumer state is newer than provider!";
2595 syncops **sp = &si->si_ops;
2597 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2598 while ( *sp != sop )
2599 sp = &(*sp)->s_next;
2601 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2604 rs->sr_ctrls = NULL;
2605 send_ldap_result( op, rs );
2609 if ( BER_BVISEMPTY( &mincsn )) {
2614 /* If nothing has changed, shortcut it */
2615 if ( !changed && !dirty ) {
2617 no_change: if ( !(op->o_sync_mode & SLAP_SYNC_PERSIST) ) {
2618 LDAPControl *ctrls[2];
2622 syncprov_done_ctrl( op, rs, ctrls, 0, 0,
2623 NULL, LDAP_SYNC_REFRESH_DELETES );
2624 rs->sr_ctrls = ctrls;
2625 rs->sr_err = LDAP_SUCCESS;
2626 send_ldap_result( op, rs );
2627 rs->sr_ctrls = NULL;
2633 /* Do we have a sessionlog for this search? */
2637 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
2638 /* Are there any log entries, and is the consumer state
2639 * present in the session log?
2641 if ( sl->sl_num > 0 ) {
2643 for ( i=0; i<sl->sl_numcsns; i++ ) {
2644 /* SID not present == new enough */
2645 if ( minsid < sl->sl_sids[i] ) {
2650 if ( minsid == sl->sl_sids[i] ) {
2652 if ( ber_bvcmp( &mincsn, &sl->sl_mincsn[i] ) >= 0 )
2657 /* SID not present == new enough */
2658 if ( i == sl->sl_numcsns )
2663 /* mutex is unlocked in playlog */
2664 syncprov_playlog( op, rs, sl, srs, ctxcsn, numcsns, sids );
2666 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
2669 /* Is the CSN still present in the database? */
2670 if ( syncprov_findcsn( op, FIND_CSN, &mincsn ) != LDAP_SUCCESS ) {
2671 /* No, so a reload is required */
2672 /* the 2.2 consumer doesn't send this hint */
2673 if ( si->si_usehint && srs->sr_rhint == 0 ) {
2675 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2677 op->o_tmpfree( sids, op->o_tmpmemctx );
2678 rs->sr_err = LDAP_SYNC_REFRESH_REQUIRED;
2679 rs->sr_text = "sync cookie is stale";
2682 if ( srs->sr_state.ctxcsn ) {
2683 ber_bvarray_free_x( srs->sr_state.ctxcsn, op->o_tmpmemctx );
2684 srs->sr_state.ctxcsn = NULL;
2686 if ( srs->sr_state.sids ) {
2687 slap_sl_free( srs->sr_state.sids, op->o_tmpmemctx );
2688 srs->sr_state.sids = NULL;
2690 srs->sr_state.numcsns = 0;
2693 /* If changed and doing Present lookup, send Present UUIDs */
2694 if ( do_present && syncprov_findcsn( op, FIND_PRESENT, 0 ) !=
2697 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2699 op->o_tmpfree( sids, op->o_tmpmemctx );
2704 /* No consumer state, assume something has changed */
2705 changed = SS_CHANGED;
2709 /* Append CSN range to search filter, save original filter
2710 * for persistent search evaluation
2713 ldap_pvt_thread_mutex_lock( &sop->s_mutex );
2714 sop->s_filterstr = op->ors_filterstr;
2715 /* correct the refcount that was set to 2 before */
2719 /* If something changed, find the changes */
2720 if ( gotstate && ( changed || dirty ) ) {
2721 Filter *fand, *fava;
2723 fand = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2724 fand->f_choice = LDAP_FILTER_AND;
2725 fand->f_next = NULL;
2726 fava = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2728 fava->f_choice = LDAP_FILTER_GE;
2729 fava->f_ava = op->o_tmpalloc( sizeof(AttributeAssertion), op->o_tmpmemctx );
2730 fava->f_ava->aa_desc = slap_schema.si_ad_entryCSN;
2731 #ifdef LDAP_COMP_MATCH
2732 fava->f_ava->aa_cf = NULL;
2734 ber_dupbv_x( &fava->f_ava->aa_value, &mincsn, op->o_tmpmemctx );
2735 fava->f_next = op->ors_filter;
2736 op->ors_filter = fand;
2737 filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2739 sop->s_flags |= PS_FIX_FILTER;
2743 ldap_pvt_thread_mutex_unlock( &sop->s_mutex );
2746 /* Let our callback add needed info to returned entries */
2747 cb = op->o_tmpcalloc(1, sizeof(slap_callback)+sizeof(searchstate), op->o_tmpmemctx);
2748 ss = (searchstate *)(cb+1);
2751 ss->ss_flags = do_present | changed;
2752 ss->ss_ctxcsn = ctxcsn;
2753 ss->ss_numcsns = numcsns;
2755 cb->sc_response = syncprov_search_response;
2756 cb->sc_private = ss;
2757 cb->sc_next = op->o_callback;
2758 op->o_callback = cb;
2760 /* If this is a persistent search and no changes were reported during
2761 * the refresh phase, just invoke the response callback to transition
2762 * us into persist phase
2764 if ( !changed && !dirty ) {
2765 rs->sr_err = LDAP_SUCCESS;
2766 rs->sr_nentries = 0;
2767 send_ldap_result( op, rs );
2770 return SLAP_CB_CONTINUE;
2774 syncprov_operational(
2778 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2779 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2781 /* This prevents generating unnecessarily; frontend will strip
2782 * any statically stored copy.
2784 if ( op->o_sync != SLAP_CONTROL_NONE )
2785 return SLAP_CB_CONTINUE;
2787 if ( rs->sr_entry &&
2788 dn_match( &rs->sr_entry->e_nname, &si->si_contextdn )) {
2790 if ( SLAP_OPATTRS( rs->sr_attr_flags ) ||
2791 ad_inlist( slap_schema.si_ad_contextCSN, rs->sr_attrs )) {
2792 Attribute *a, **ap = NULL;
2794 for ( a=rs->sr_entry->e_attrs; a; a=a->a_next ) {
2795 if ( a->a_desc == slap_schema.si_ad_contextCSN )
2799 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2800 if ( si->si_ctxcsn ) {
2802 for ( ap = &rs->sr_operational_attrs; *ap;
2803 ap=&(*ap)->a_next );
2805 a = attr_alloc( slap_schema.si_ad_contextCSN );
2810 if ( rs_entry2modifiable( op, rs, on )) {
2811 a = attr_find( rs->sr_entry->e_attrs,
2812 slap_schema.si_ad_contextCSN );
2814 if ( a->a_nvals != a->a_vals ) {
2815 ber_bvarray_free( a->a_nvals );
2818 ber_bvarray_free( a->a_vals );
2822 attr_valadd( a, si->si_ctxcsn, si->si_ctxcsn, si->si_numcsns );
2824 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2827 return SLAP_CB_CONTINUE;
2837 static ConfigDriver sp_cf_gen;
2839 static ConfigTable spcfg[] = {
2840 { "syncprov-checkpoint", "ops> <minutes", 3, 3, 0, ARG_MAGIC|SP_CHKPT,
2841 sp_cf_gen, "( OLcfgOvAt:1.1 NAME 'olcSpCheckpoint' "
2842 "DESC 'ContextCSN checkpoint interval in ops and minutes' "
2843 "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
2844 { "syncprov-sessionlog", "ops", 2, 2, 0, ARG_INT|ARG_MAGIC|SP_SESSL,
2845 sp_cf_gen, "( OLcfgOvAt:1.2 NAME 'olcSpSessionlog' "
2846 "DESC 'Session log size in ops' "
2847 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
2848 { "syncprov-nopresent", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_NOPRES,
2849 sp_cf_gen, "( OLcfgOvAt:1.3 NAME 'olcSpNoPresent' "
2850 "DESC 'Omit Present phase processing' "
2851 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2852 { "syncprov-reloadhint", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_USEHINT,
2853 sp_cf_gen, "( OLcfgOvAt:1.4 NAME 'olcSpReloadHint' "
2854 "DESC 'Observe Reload Hint in Request control' "
2855 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2856 { NULL, NULL, 0, 0, 0, ARG_IGNORED }
2859 static ConfigOCs spocs[] = {
2860 { "( OLcfgOvOc:1.1 "
2861 "NAME 'olcSyncProvConfig' "
2862 "DESC 'SyncRepl Provider configuration' "
2863 "SUP olcOverlayConfig "
2864 "MAY ( olcSpCheckpoint "
2865 "$ olcSpSessionlog "
2867 "$ olcSpReloadHint "
2869 Cft_Overlay, spcfg },
2874 sp_cf_gen(ConfigArgs *c)
2876 slap_overinst *on = (slap_overinst *)c->bi;
2877 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2880 if ( c->op == SLAP_CONFIG_EMIT ) {
2881 switch ( c->type ) {
2883 if ( si->si_chkops || si->si_chktime ) {
2885 /* we assume si_chktime is a multiple of 60
2886 * because the parsed value was originally
2887 * multiplied by 60 */
2888 bv.bv_len = snprintf( c->cr_msg, sizeof( c->cr_msg ),
2889 "%d %d", si->si_chkops, si->si_chktime/60 );
2890 if ( bv.bv_len >= sizeof( c->cr_msg ) ) {
2893 bv.bv_val = c->cr_msg;
2894 value_add_one( &c->rvalue_vals, &bv );
2901 if ( si->si_logs ) {
2902 c->value_int = si->si_logs->sl_size;
2908 if ( si->si_nopres ) {
2915 if ( si->si_usehint ) {
2923 } else if ( c->op == LDAP_MOD_DELETE ) {
2924 switch ( c->type ) {
2931 si->si_logs->sl_size = 0;
2933 rc = LDAP_NO_SUCH_ATTRIBUTE;
2936 if ( si->si_nopres )
2939 rc = LDAP_NO_SUCH_ATTRIBUTE;
2942 if ( si->si_usehint )
2945 rc = LDAP_NO_SUCH_ATTRIBUTE;
2950 switch ( c->type ) {
2952 if ( lutil_atoi( &si->si_chkops, c->argv[1] ) != 0 ) {
2953 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint ops # \"%s\"",
2954 c->argv[0], c->argv[1] );
2955 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2956 "%s: %s\n", c->log, c->cr_msg, 0 );
2957 return ARG_BAD_CONF;
2959 if ( si->si_chkops <= 0 ) {
2960 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint ops # \"%d\"",
2961 c->argv[0], si->si_chkops );
2962 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2963 "%s: %s\n", c->log, c->cr_msg, 0 );
2964 return ARG_BAD_CONF;
2966 if ( lutil_atoi( &si->si_chktime, c->argv[2] ) != 0 ) {
2967 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint time \"%s\"",
2968 c->argv[0], c->argv[1] );
2969 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2970 "%s: %s\n", c->log, c->cr_msg, 0 );
2971 return ARG_BAD_CONF;
2973 if ( si->si_chktime <= 0 ) {
2974 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint time \"%d\"",
2975 c->argv[0], si->si_chkops );
2976 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2977 "%s: %s\n", c->log, c->cr_msg, 0 );
2978 return ARG_BAD_CONF;
2980 si->si_chktime *= 60;
2984 int size = c->value_int;
2987 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s size %d is negative",
2989 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2990 "%s: %s\n", c->log, c->cr_msg, 0 );
2991 return ARG_BAD_CONF;
2995 sl = ch_malloc( sizeof( sessionlog ));
2996 sl->sl_mincsn = NULL;
3000 sl->sl_head = sl->sl_tail = NULL;
3001 ldap_pvt_thread_mutex_init( &sl->sl_mutex );
3008 si->si_nopres = c->value_int;
3011 si->si_usehint = c->value_int;
3017 /* ITS#3456 we cannot run this search on the main thread, must use a
3018 * child thread in order to insure we have a big enough stack.
3025 syncprov_findcsn( ptr, FIND_MAXCSN, 0 );
3030 /* Read any existing contextCSN from the underlying db.
3031 * Then search for any entries newer than that. If no value exists,
3032 * just generate it. Cache whatever result.
3040 slap_overinst *on = (slap_overinst *) be->bd_info;
3041 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3043 Connection conn = { 0 };
3044 OperationBuffer opbuf;
3049 void *thrctx = NULL;
3051 if ( !SLAP_LASTMOD( be )) {
3052 Debug( LDAP_DEBUG_ANY,
3053 "syncprov_db_open: invalid config, lastmod must be enabled\n", 0, 0, 0 );
3057 if ( slapMode & SLAP_TOOL_MODE ) {
3061 rc = overlay_register_control( be, LDAP_CONTROL_SYNC );
3066 thrctx = ldap_pvt_thread_pool_context();
3067 connection_fake_init2( &conn, &opbuf, thrctx, 0 );
3070 op->o_dn = be->be_rootdn;
3071 op->o_ndn = be->be_rootndn;
3073 if ( SLAP_SYNC_SUBENTRY( be )) {
3074 build_new_dn( &si->si_contextdn, be->be_nsuffix,
3075 (struct berval *)&slap_ldapsync_cn_bv, NULL );
3077 si->si_contextdn = be->be_nsuffix[0];
3079 rc = overlay_entry_get_ov( op, &si->si_contextdn, NULL,
3080 slap_schema.si_ad_contextCSN, 0, &e, on );
3083 ldap_pvt_thread_t tid;
3085 a = attr_find( e->e_attrs, slap_schema.si_ad_contextCSN );
3087 ber_bvarray_dup_x( &si->si_ctxcsn, a->a_vals, NULL );
3088 si->si_numcsns = a->a_numvals;
3089 si->si_sids = slap_parse_csn_sids( si->si_ctxcsn, a->a_numvals, NULL );
3090 slap_sort_csn_sids( si->si_ctxcsn, si->si_sids, si->si_numcsns, NULL );
3092 overlay_entry_release_ov( op, e, 0, on );
3093 if ( si->si_ctxcsn && !SLAP_DBCLEAN( be )) {
3094 op->o_tag = LDAP_REQ_SEARCH;
3095 op->o_req_dn = be->be_suffix[0];
3096 op->o_req_ndn = be->be_nsuffix[0];
3097 op->ors_scope = LDAP_SCOPE_SUBTREE;
3098 ldap_pvt_thread_create( &tid, 0, syncprov_db_otask, op );
3099 ldap_pvt_thread_join( tid, NULL );
3103 /* Didn't find a contextCSN, should we generate one? */
3104 if ( !si->si_ctxcsn ) {
3105 char csnbuf[ LDAP_PVT_CSNSTR_BUFSIZE ];
3108 if ( SLAP_SYNC_SHADOW( op->o_bd )) {
3109 /* If we're also a consumer, then don't generate anything.
3110 * Wait for our provider to send it to us, or for a local
3111 * modify if we have multimaster.
3115 csn.bv_val = csnbuf;
3116 csn.bv_len = sizeof( csnbuf );
3117 slap_get_csn( op, &csn, 0 );
3118 value_add_one( &si->si_ctxcsn, &csn );
3120 si->si_sids = ch_malloc( sizeof(int) );
3121 si->si_sids[0] = slap_serverID;
3123 /* make sure we do a checkpoint on close */
3127 /* Initialize the sessionlog mincsn */
3128 if ( si->si_logs && si->si_numcsns ) {
3129 sessionlog *sl = si->si_logs;
3131 ber_bvarray_dup_x( &sl->sl_mincsn, si->si_ctxcsn, NULL );
3132 sl->sl_numcsns = si->si_numcsns;
3133 sl->sl_sids = ch_malloc( si->si_numcsns * sizeof(int) );
3134 for ( i=0; i < si->si_numcsns; i++ )
3135 sl->sl_sids[i] = si->si_sids[i];
3139 op->o_bd->bd_info = (BackendInfo *)on;
3143 /* Write the current contextCSN into the underlying db.
3151 slap_overinst *on = (slap_overinst *) be->bd_info;
3152 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3153 #ifdef SLAP_CONFIG_DELETE
3154 syncops *so, *sonext;
3155 #endif /* SLAP_CONFIG_DELETE */
3157 if ( slapMode & SLAP_TOOL_MODE ) {
3160 if ( si->si_numops ) {
3161 Connection conn = {0};
3162 OperationBuffer opbuf;
3166 thrctx = ldap_pvt_thread_pool_context();
3167 connection_fake_init2( &conn, &opbuf, thrctx, 0 );
3170 op->o_dn = be->be_rootdn;
3171 op->o_ndn = be->be_rootndn;
3172 syncprov_checkpoint( op, on );
3175 #ifdef SLAP_CONFIG_DELETE
3176 if ( !slapd_shutdown ) {
3177 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
3178 for ( so=si->si_ops, sonext=so; so; so=sonext ) {
3179 SlapReply rs = {REP_RESULT};
3180 rs.sr_err = LDAP_UNAVAILABLE;
3181 send_ldap_result( so->s_op, &rs );
3183 syncprov_drop_psearch( so, 0);
3186 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
3188 overlay_unregister_control( be, LDAP_CONTROL_SYNC );
3189 #endif /* SLAP_CONFIG_DELETE */
3200 slap_overinst *on = (slap_overinst *)be->bd_info;
3201 syncprov_info_t *si;
3203 if ( SLAP_ISGLOBALOVERLAY( be ) ) {
3204 Debug( LDAP_DEBUG_ANY,
3205 "syncprov must be instantiated within a database.\n",
3210 si = ch_calloc(1, sizeof(syncprov_info_t));
3211 on->on_bi.bi_private = si;
3212 ldap_pvt_thread_rdwr_init( &si->si_csn_rwlock );
3213 ldap_pvt_thread_mutex_init( &si->si_ops_mutex );
3214 ldap_pvt_thread_mutex_init( &si->si_mods_mutex );
3215 ldap_pvt_thread_mutex_init( &si->si_resp_mutex );
3217 csn_anlist[0].an_desc = slap_schema.si_ad_entryCSN;
3218 csn_anlist[0].an_name = slap_schema.si_ad_entryCSN->ad_cname;
3219 csn_anlist[1].an_desc = slap_schema.si_ad_entryUUID;
3220 csn_anlist[1].an_name = slap_schema.si_ad_entryUUID->ad_cname;
3222 uuid_anlist[0].an_desc = slap_schema.si_ad_entryUUID;
3223 uuid_anlist[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
3229 syncprov_db_destroy(
3234 slap_overinst *on = (slap_overinst *)be->bd_info;
3235 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3238 if ( si->si_logs ) {
3239 sessionlog *sl = si->si_logs;
3240 slog_entry *se = sl->sl_head;
3243 slog_entry *se_next = se->se_next;
3247 if ( sl->sl_mincsn )
3248 ber_bvarray_free( sl->sl_mincsn );
3250 ch_free( sl->sl_sids );
3252 ldap_pvt_thread_mutex_destroy(&si->si_logs->sl_mutex);
3253 ch_free( si->si_logs );
3255 if ( si->si_ctxcsn )
3256 ber_bvarray_free( si->si_ctxcsn );
3258 ch_free( si->si_sids );
3259 ldap_pvt_thread_mutex_destroy( &si->si_resp_mutex );
3260 ldap_pvt_thread_mutex_destroy( &si->si_mods_mutex );
3261 ldap_pvt_thread_mutex_destroy( &si->si_ops_mutex );
3262 ldap_pvt_thread_rdwr_destroy( &si->si_csn_rwlock );
3269 static int syncprov_parseCtrl (
3275 BerElementBuffer berbuf;
3276 BerElement *ber = (BerElement *)&berbuf;
3279 struct berval cookie = BER_BVNULL;
3283 if ( op->o_sync != SLAP_CONTROL_NONE ) {
3284 rs->sr_text = "Sync control specified multiple times";
3285 return LDAP_PROTOCOL_ERROR;
3288 if ( op->o_pagedresults != SLAP_CONTROL_NONE ) {
3289 rs->sr_text = "Sync control specified with pagedResults control";
3290 return LDAP_PROTOCOL_ERROR;
3293 if ( BER_BVISNULL( &ctrl->ldctl_value ) ) {
3294 rs->sr_text = "Sync control value is absent";
3295 return LDAP_PROTOCOL_ERROR;
3298 if ( BER_BVISEMPTY( &ctrl->ldctl_value ) ) {
3299 rs->sr_text = "Sync control value is empty";
3300 return LDAP_PROTOCOL_ERROR;
3303 /* Parse the control value
3304 * syncRequestValue ::= SEQUENCE {
3309 * refreshAndPersist (3)
3311 * cookie syncCookie OPTIONAL
3315 ber_init2( ber, &ctrl->ldctl_value, 0 );
3317 if ( (tag = ber_scanf( ber, "{i" /*}*/, &mode )) == LBER_ERROR ) {
3318 rs->sr_text = "Sync control : mode decoding error";
3319 return LDAP_PROTOCOL_ERROR;
3323 case LDAP_SYNC_REFRESH_ONLY:
3324 mode = SLAP_SYNC_REFRESH;
3326 case LDAP_SYNC_REFRESH_AND_PERSIST:
3327 mode = SLAP_SYNC_REFRESH_AND_PERSIST;
3330 rs->sr_text = "Sync control : unknown update mode";
3331 return LDAP_PROTOCOL_ERROR;
3334 tag = ber_peek_tag( ber, &len );
3336 if ( tag == LDAP_TAG_SYNC_COOKIE ) {
3337 if (( ber_scanf( ber, /*{*/ "m", &cookie )) == LBER_ERROR ) {
3338 rs->sr_text = "Sync control : cookie decoding error";
3339 return LDAP_PROTOCOL_ERROR;
3341 tag = ber_peek_tag( ber, &len );
3343 if ( tag == LDAP_TAG_RELOAD_HINT ) {
3344 if (( ber_scanf( ber, /*{*/ "b", &rhint )) == LBER_ERROR ) {
3345 rs->sr_text = "Sync control : rhint decoding error";
3346 return LDAP_PROTOCOL_ERROR;
3349 if (( ber_scanf( ber, /*{*/ "}")) == LBER_ERROR ) {
3350 rs->sr_text = "Sync control : decoding error";
3351 return LDAP_PROTOCOL_ERROR;
3353 sr = op->o_tmpcalloc( 1, sizeof(struct sync_control), op->o_tmpmemctx );
3354 sr->sr_rhint = rhint;
3355 if (!BER_BVISNULL(&cookie)) {
3356 ber_dupbv_x( &sr->sr_state.octet_str, &cookie, op->o_tmpmemctx );
3357 /* If parse fails, pretend no cookie was sent */
3358 if ( slap_parse_sync_cookie( &sr->sr_state, op->o_tmpmemctx ) ||
3359 sr->sr_state.rid == -1 ) {
3360 if ( sr->sr_state.ctxcsn ) {
3361 ber_bvarray_free_x( sr->sr_state.ctxcsn, op->o_tmpmemctx );
3362 sr->sr_state.ctxcsn = NULL;
3364 sr->sr_state.numcsns = 0;
3368 op->o_controls[slap_cids.sc_LDAPsync] = sr;
3370 op->o_sync = ctrl->ldctl_iscritical
3371 ? SLAP_CONTROL_CRITICAL
3372 : SLAP_CONTROL_NONCRITICAL;
3374 op->o_sync_mode |= mode; /* o_sync_mode shares o_sync */
3376 return LDAP_SUCCESS;
3379 /* This overlay is set up for dynamic loading via moduleload. For static
3380 * configuration, you'll need to arrange for the slap_overinst to be
3381 * initialized and registered by some other function inside slapd.
3384 static slap_overinst syncprov;
3387 syncprov_initialize()
3391 rc = register_supported_control( LDAP_CONTROL_SYNC,
3392 SLAP_CTRL_SEARCH, NULL,
3393 syncprov_parseCtrl, &slap_cids.sc_LDAPsync );
3394 if ( rc != LDAP_SUCCESS ) {
3395 Debug( LDAP_DEBUG_ANY,
3396 "syncprov_init: Failed to register control %d\n", rc, 0, 0 );
3400 syncprov.on_bi.bi_type = "syncprov";
3401 syncprov.on_bi.bi_db_init = syncprov_db_init;
3402 syncprov.on_bi.bi_db_destroy = syncprov_db_destroy;
3403 syncprov.on_bi.bi_db_open = syncprov_db_open;
3404 syncprov.on_bi.bi_db_close = syncprov_db_close;
3406 syncprov.on_bi.bi_op_abandon = syncprov_op_abandon;
3407 syncprov.on_bi.bi_op_cancel = syncprov_op_abandon;
3409 syncprov.on_bi.bi_op_add = syncprov_op_mod;
3410 syncprov.on_bi.bi_op_compare = syncprov_op_compare;
3411 syncprov.on_bi.bi_op_delete = syncprov_op_mod;
3412 syncprov.on_bi.bi_op_modify = syncprov_op_mod;
3413 syncprov.on_bi.bi_op_modrdn = syncprov_op_mod;
3414 syncprov.on_bi.bi_op_search = syncprov_op_search;
3415 syncprov.on_bi.bi_extended = syncprov_op_extended;
3416 syncprov.on_bi.bi_operational = syncprov_operational;
3418 syncprov.on_bi.bi_cf_ocs = spocs;
3420 generic_filter.f_desc = slap_schema.si_ad_objectClass;
3422 rc = config_register_schema( spcfg, spocs );
3423 if ( rc ) return rc;
3425 return overlay_register( &syncprov );
3428 #if SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC
3430 init_module( int argc, char *argv[] )
3432 return syncprov_initialize();
3434 #endif /* SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC */
3436 #endif /* defined(SLAPD_OVER_SYNCPROV) */