2 /* syncprov.c - syncrepl provider */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2004-2013 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 LDAP_SLIST_INIT( &fop.o_extra );
454 fop.o_tag = LDAP_REQ_SEARCH;
455 fop.ors_scope = LDAP_SCOPE_BASE;
456 fop.ors_limit = NULL;
458 fop.ors_tlimit = SLAP_NO_LIMIT;
459 fop.ors_attrs = slap_anlist_no_attrs;
460 fop.ors_attrsonly = 1;
461 fop.ors_filter = &generic_filter;
462 fop.ors_filterstr = generic_filterstr;
464 rc = fop.o_bd->be_search( &fop, &frs );
466 ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
470 /* After the first call, see if the fdn resides in the scope */
471 if ( fc->fbase == 1 ) {
472 switch ( fc->fss->s_op->ors_scope ) {
473 case LDAP_SCOPE_BASE:
474 fc->fscope = dn_match( fc->fdn, &fc->fss->s_base );
476 case LDAP_SCOPE_ONELEVEL: {
478 dnParent( fc->fdn, &pdn );
479 fc->fscope = dn_match( &pdn, &fc->fss->s_base );
481 case LDAP_SCOPE_SUBTREE:
482 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base );
484 case LDAP_SCOPE_SUBORDINATE:
485 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base ) &&
486 !dn_match( fc->fdn, &fc->fss->s_base );
494 /* If entryID has changed, then the base of this search has
495 * changed. Invalidate the psearch.
497 return LDAP_NO_SUCH_OBJECT;
501 * This function has three different purposes, but they all use a search
502 * that filters on entryCSN so they're combined here.
503 * 1: at startup time, after a contextCSN has been read from the database,
504 * we search for all entries with CSN >= contextCSN in case the contextCSN
505 * was not checkpointed at the previous shutdown.
507 * 2: when the current contextCSN is known and we have a sync cookie, we search
508 * for one entry with CSN = the cookie CSN. If not found, try <= cookie CSN.
509 * If an entry is found, the cookie CSN is valid, otherwise it is stale.
511 * 3: during a refresh phase, we search for all entries with CSN <= the cookie
512 * CSN, and generate Present records for them. We always collect this result
513 * in SyncID sets, even if there's only one match.
515 typedef enum find_csn_t {
522 findmax_cb( Operation *op, SlapReply *rs )
524 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
525 struct berval *maxcsn = op->o_callback->sc_private;
526 Attribute *a = attr_find( rs->sr_entry->e_attrs,
527 slap_schema.si_ad_entryCSN );
529 if ( a && ber_bvcmp( &a->a_vals[0], maxcsn ) > 0 &&
530 slap_parse_csn_sid( &a->a_vals[0] ) == slap_serverID ) {
531 maxcsn->bv_len = a->a_vals[0].bv_len;
532 strcpy( maxcsn->bv_val, a->a_vals[0].bv_val );
539 findcsn_cb( Operation *op, SlapReply *rs )
541 slap_callback *sc = op->o_callback;
543 /* We just want to know that at least one exists, so it's OK if
544 * we exceed the unchecked limit.
546 if ( rs->sr_err == LDAP_ADMINLIMIT_EXCEEDED ||
547 (rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS )) {
548 sc->sc_private = (void *)1;
553 /* Build a list of entryUUIDs for sending in a SyncID set */
557 typedef struct fpres_cookie {
564 findpres_cb( Operation *op, SlapReply *rs )
566 slap_callback *sc = op->o_callback;
567 fpres_cookie *pc = sc->sc_private;
569 int ret = SLAP_CB_CONTINUE;
571 switch ( rs->sr_type ) {
573 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
575 pc->uuids[pc->num].bv_val = pc->last;
576 AC_MEMCPY( pc->uuids[pc->num].bv_val, a->a_nvals[0].bv_val,
577 pc->uuids[pc->num].bv_len );
579 pc->last = pc->uuids[pc->num].bv_val;
580 pc->uuids[pc->num].bv_val = NULL;
583 if ( pc->num != SLAP_SYNCUUID_SET_SIZE )
589 ret = syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET, NULL,
591 pc->uuids[pc->num].bv_val = pc->last;
593 pc->last = pc->uuids[0].bv_val;
603 syncprov_findcsn( Operation *op, find_csn_t mode, struct berval *csn )
605 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
606 syncprov_info_t *si = on->on_bi.bi_private;
608 slap_callback cb = {0};
610 SlapReply frs = { REP_RESULT };
611 char buf[LDAP_PVT_CSNSTR_BUFSIZE + STRLENOF("(entryCSN<=)")];
612 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
613 struct berval maxcsn;
615 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
616 fpres_cookie pcookie;
617 sync_control *srs = NULL;
618 struct slap_limits_set fc_limits;
619 int i, rc = LDAP_SUCCESS, findcsn_retry = 1;
622 if ( mode != FIND_MAXCSN ) {
623 srs = op->o_controls[slap_cids.sc_LDAPsync];
627 fop.o_sync_mode &= SLAP_CONTROL_MASK; /* turn off sync_mode */
628 /* We want pure entries, not referrals */
629 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
632 cf.f_av_desc = slap_schema.si_ad_entryCSN;
633 BER_BVZERO( &cf.f_av_value );
636 fop.o_callback = &cb;
637 fop.ors_limit = NULL;
638 fop.ors_tlimit = SLAP_NO_LIMIT;
639 fop.ors_filter = &cf;
640 fop.ors_filterstr.bv_val = buf;
645 cf.f_choice = LDAP_FILTER_GE;
646 /* If there are multiple CSNs, use the one with our serverID */
647 for ( i=0; i<si->si_numcsns; i++) {
648 if ( slap_serverID == si->si_sids[i] ) {
653 if ( i == si->si_numcsns ) {
654 /* No match: this is multimaster, and none of the content in the DB
655 * originated locally. Treat like no CSN.
657 return LDAP_NO_SUCH_OBJECT;
659 cf.f_av_value = si->si_ctxcsn[maxid];
660 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
661 "(entryCSN>=%s)", cf.f_av_value.bv_val );
662 if ( fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
665 fop.ors_attrsonly = 0;
666 fop.ors_attrs = csn_anlist;
667 fop.ors_slimit = SLAP_NO_LIMIT;
668 cb.sc_private = &maxcsn;
669 cb.sc_response = findmax_cb;
670 strcpy( cbuf, cf.f_av_value.bv_val );
671 maxcsn.bv_val = cbuf;
672 maxcsn.bv_len = cf.f_av_value.bv_len;
675 if ( BER_BVISEMPTY( &cf.f_av_value )) {
676 cf.f_av_value = *csn;
678 fop.o_dn = op->o_bd->be_rootdn;
679 fop.o_ndn = op->o_bd->be_rootndn;
680 fop.o_req_dn = op->o_bd->be_suffix[0];
681 fop.o_req_ndn = op->o_bd->be_nsuffix[0];
682 /* Look for exact match the first time */
683 if ( findcsn_retry ) {
684 cf.f_choice = LDAP_FILTER_EQUALITY;
685 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
686 "(entryCSN=%s)", cf.f_av_value.bv_val );
687 /* On retry, look for <= */
689 cf.f_choice = LDAP_FILTER_LE;
690 fop.ors_limit = &fc_limits;
691 memset( &fc_limits, 0, sizeof( fc_limits ));
692 fc_limits.lms_s_unchecked = 1;
693 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
694 "(entryCSN<=%s)", cf.f_av_value.bv_val );
696 if ( fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
699 fop.ors_attrsonly = 1;
700 fop.ors_attrs = slap_anlist_no_attrs;
702 cb.sc_private = NULL;
703 cb.sc_response = findcsn_cb;
706 fop.ors_filter = op->ors_filter;
707 fop.ors_filterstr = op->ors_filterstr;
708 fop.ors_attrsonly = 0;
709 fop.ors_attrs = uuid_anlist;
710 fop.ors_slimit = SLAP_NO_LIMIT;
711 cb.sc_private = &pcookie;
712 cb.sc_response = findpres_cb;
715 /* preallocate storage for a full set */
716 pcookie.uuids = op->o_tmpalloc( (SLAP_SYNCUUID_SET_SIZE+1) *
717 sizeof(struct berval) + SLAP_SYNCUUID_SET_SIZE * UUID_LEN,
719 pcookie.last = (char *)(pcookie.uuids + SLAP_SYNCUUID_SET_SIZE+1);
720 pcookie.uuids[0].bv_val = pcookie.last;
721 pcookie.uuids[0].bv_len = UUID_LEN;
722 for (i=1; i<SLAP_SYNCUUID_SET_SIZE; i++) {
723 pcookie.uuids[i].bv_val = pcookie.uuids[i-1].bv_val + UUID_LEN;
724 pcookie.uuids[i].bv_len = UUID_LEN;
729 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
730 fop.o_bd->be_search( &fop, &frs );
731 fop.o_bd->bd_info = (BackendInfo *)on;
735 if ( ber_bvcmp( &si->si_ctxcsn[maxid], &maxcsn )) {
737 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
738 assert( !syn->ssyn_validate( syn, &maxcsn ));
740 ber_bvreplace( &si->si_ctxcsn[maxid], &maxcsn );
741 si->si_numops++; /* ensure a checkpoint */
745 /* If matching CSN was not found, invalidate the context. */
746 if ( !cb.sc_private ) {
747 /* If we didn't find an exact match, then try for <= */
748 if ( findcsn_retry ) {
750 rs_reinit( &frs, REP_RESULT );
753 rc = LDAP_NO_SUCH_OBJECT;
757 op->o_tmpfree( pcookie.uuids, op->o_tmpmemctx );
764 /* Should find a place to cache these */
765 static mutexint *get_mutexint()
767 mutexint *mi = ch_malloc( sizeof( mutexint ));
768 ldap_pvt_thread_mutex_init( &mi->mi_mutex );
773 static void inc_mutexint( mutexint *mi )
775 ldap_pvt_thread_mutex_lock( &mi->mi_mutex );
777 ldap_pvt_thread_mutex_unlock( &mi->mi_mutex );
780 /* return resulting counter */
781 static int dec_mutexint( mutexint *mi )
784 ldap_pvt_thread_mutex_lock( &mi->mi_mutex );
786 ldap_pvt_thread_mutex_unlock( &mi->mi_mutex );
788 ldap_pvt_thread_mutex_destroy( &mi->mi_mutex );
795 syncprov_free_syncop( syncops *so )
797 syncres *sr, *srnext;
798 GroupAssertion *ga, *gnext;
800 ldap_pvt_thread_mutex_lock( &so->s_mutex );
801 /* already being freed, or still in use */
802 if ( !so->s_inuse || --so->s_inuse > 0 ) {
803 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
806 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
807 if ( so->s_flags & PS_IS_DETACHED ) {
808 filter_free( so->s_op->ors_filter );
809 for ( ga = so->s_op->o_groups; ga; ga=gnext ) {
815 ch_free( so->s_base.bv_val );
816 for ( sr=so->s_res; sr; sr=srnext ) {
819 if ( !dec_mutexint( sr->s_e->e_private )) {
820 sr->s_e->e_private = NULL;
821 entry_free( sr->s_e );
826 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 syncprov_free_syncop( so );
1114 syncprov_ab_cleanup( Operation *op, SlapReply *rs )
1116 slap_callback *sc = op->o_callback;
1117 op->o_callback = sc->sc_next;
1118 syncprov_drop_psearch( op->o_callback->sc_private, 0 );
1119 op->o_tmpfree( sc, op->o_tmpmemctx );
1124 syncprov_op_abandon( Operation *op, SlapReply *rs )
1126 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1127 syncprov_info_t *si = on->on_bi.bi_private;
1128 syncops *so, *soprev;
1130 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1131 for ( so=si->si_ops, soprev = (syncops *)&si->si_ops; so;
1132 soprev=so, so=so->s_next ) {
1133 if ( so->s_op->o_connid == op->o_connid &&
1134 so->s_op->o_msgid == op->orn_msgid ) {
1135 so->s_op->o_abandon = 1;
1136 soprev->s_next = so->s_next;
1140 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1142 /* Is this really a Cancel exop? */
1143 if ( op->o_tag != LDAP_REQ_ABANDON ) {
1144 so->s_op->o_cancel = SLAP_CANCEL_ACK;
1145 rs->sr_err = LDAP_CANCELLED;
1146 send_ldap_result( so->s_op, rs );
1147 if ( so->s_flags & PS_IS_DETACHED ) {
1149 cb = op->o_tmpcalloc( 1, sizeof(slap_callback), op->o_tmpmemctx );
1150 cb->sc_cleanup = syncprov_ab_cleanup;
1151 cb->sc_next = op->o_callback;
1152 cb->sc_private = so;
1153 op->o_callback = cb;
1154 return SLAP_CB_CONTINUE;
1157 syncprov_drop_psearch( so, 0 );
1159 return SLAP_CB_CONTINUE;
1162 /* Find which persistent searches are affected by this operation */
1164 syncprov_matchops( Operation *op, opcookie *opc, int saveit )
1166 slap_overinst *on = opc->son;
1167 syncprov_info_t *si = on->on_bi.bi_private;
1170 syncops *ss, *sprev, *snext;
1174 struct berval newdn;
1176 BackendDB *b0 = op->o_bd, db;
1178 fc.fdn = &op->o_req_ndn;
1179 /* compute new DN */
1180 if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1182 if ( op->orr_nnewSup ) pdn = *op->orr_nnewSup;
1183 else dnParent( fc.fdn, &pdn );
1184 build_new_dn( &newdn, &pdn, &op->orr_nnewrdn, op->o_tmpmemctx );
1188 if ( op->o_tag != LDAP_REQ_ADD ) {
1189 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1193 rc = overlay_entry_get_ov( op, fc.fdn, NULL, NULL, 0, &e, on );
1194 /* If we're sending responses now, make a copy and unlock the DB */
1195 if ( e && !saveit ) {
1197 opc->se = entry_dup( e );
1198 opc->se->e_private = get_mutexint();
1200 overlay_entry_release_ov( op, e, 0, on );
1211 opc->se = entry_dup( e );
1212 opc->se->e_private = get_mutexint();
1218 if ( saveit || op->o_tag == LDAP_REQ_ADD ) {
1219 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1220 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1221 opc->sreference = is_entry_referral( e );
1222 a = attr_find( e->e_attrs, slap_schema.si_ad_entryUUID );
1224 ber_dupbv_x( &opc->suuid, &a->a_nvals[0], op->o_tmpmemctx );
1225 } else if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1226 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1227 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1228 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1229 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1232 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1233 for (ss = si->si_ops, sprev = (syncops *)&si->si_ops; ss;
1234 sprev = ss, ss=snext)
1242 if ( ss->s_op->o_abandon )
1245 /* Don't send ops back to the originator */
1246 if ( opc->osid > 0 && opc->osid == ss->s_sid ) {
1247 Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping original sid %03x\n",
1252 /* Don't send ops back to the messenger */
1253 if ( opc->rsid > 0 && opc->rsid == ss->s_sid ) {
1254 Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping relayed sid %03x\n",
1264 /* If the base of the search is missing, signal a refresh */
1265 rc = syncprov_findbase( op, &fc );
1266 if ( rc != LDAP_SUCCESS ) {
1267 SlapReply rs = {REP_RESULT};
1268 send_ldap_error( ss->s_op, &rs, LDAP_SYNC_REFRESH_REQUIRED,
1269 "search base has changed" );
1270 sprev->s_next = snext;
1271 syncprov_drop_psearch( ss, 1 );
1276 /* If we're sending results now, look for this op in old matches */
1280 /* Did we modify the search base? */
1281 if ( dn_match( &op->o_req_ndn, &ss->s_base )) {
1282 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1283 ss->s_flags |= PS_WROTE_BASE;
1284 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1287 for ( sm=opc->smatches, old=(syncmatches *)&opc->smatches; sm;
1288 old=sm, sm=sm->sm_next ) {
1289 if ( sm->sm_op == ss ) {
1291 old->sm_next = sm->sm_next;
1292 op->o_tmpfree( sm, op->o_tmpmemctx );
1299 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1302 oh.oh_conn = ss->s_op->o_conn;
1303 oh.oh_connid = ss->s_op->o_connid;
1304 op2.o_bd = op->o_bd->bd_self;
1306 op2.o_extra = op->o_extra;
1307 op2.o_callback = NULL;
1308 if (ss->s_flags & PS_FIX_FILTER) {
1309 /* Skip the AND/GE clause that we stuck on in front. We
1310 would lose deletes/mods that happen during the refresh
1311 phase otherwise (ITS#6555) */
1312 op2.ors_filter = ss->s_op->ors_filter->f_and->f_next;
1314 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1315 rc = test_filter( &op2, e, op2.ors_filter );
1318 Debug( LDAP_DEBUG_TRACE, "syncprov_matchops: sid %03x fscope %d rc %d\n",
1319 ss->s_sid, fc.fscope, rc );
1321 /* check if current o_req_dn is in scope and matches filter */
1322 if ( fc.fscope && rc == LDAP_COMPARE_TRUE ) {
1324 sm = op->o_tmpalloc( sizeof(syncmatches), op->o_tmpmemctx );
1325 sm->sm_next = opc->smatches;
1327 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1329 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1332 /* if found send UPDATE else send ADD */
1333 syncprov_qresp( opc, ss,
1334 found ? LDAP_SYNC_MODIFY : LDAP_SYNC_ADD );
1336 } else if ( !saveit && found ) {
1338 syncprov_qresp( opc, ss, LDAP_SYNC_DELETE );
1339 } else if ( !saveit ) {
1340 syncprov_qresp( opc, ss, LDAP_SYNC_NEW_COOKIE );
1342 if ( !saveit && found ) {
1343 /* Decrement s_inuse, was incremented when called
1344 * with saveit == TRUE
1346 syncprov_free_syncop( ss );
1349 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1351 if ( op->o_tag != LDAP_REQ_ADD && e ) {
1352 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1356 overlay_entry_release_ov( op, e, 0, on );
1359 if ( opc->se && !saveit ) {
1360 if ( !dec_mutexint( opc->se->e_private )) {
1361 opc->se->e_private = NULL;
1362 entry_free( opc->se );
1367 op->o_tmpfree( fc.fdn->bv_val, op->o_tmpmemctx );
1373 syncprov_op_cleanup( Operation *op, SlapReply *rs )
1375 slap_callback *cb = op->o_callback;
1376 opcookie *opc = cb->sc_private;
1377 slap_overinst *on = opc->son;
1378 syncprov_info_t *si = on->on_bi.bi_private;
1379 syncmatches *sm, *snext;
1382 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1383 if ( si->si_active )
1385 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1387 for (sm = opc->smatches; sm; sm=snext) {
1388 snext = sm->sm_next;
1389 syncprov_free_syncop( sm->sm_op );
1390 op->o_tmpfree( sm, op->o_tmpmemctx );
1393 /* Remove op from lock table */
1396 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1397 mt->mt_mods = mt->mt_mods->mi_next;
1398 /* If there are more, promote the next one */
1399 if ( mt->mt_mods ) {
1400 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1402 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1403 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1404 avl_delete( &si->si_mods, mt, sp_avl_cmp );
1405 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1406 ldap_pvt_thread_mutex_destroy( &mt->mt_mutex );
1407 ch_free( mt->mt_dn.bv_val );
1411 if ( !BER_BVISNULL( &opc->suuid ))
1412 op->o_tmpfree( opc->suuid.bv_val, op->o_tmpmemctx );
1413 if ( !BER_BVISNULL( &opc->sndn ))
1414 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1415 if ( !BER_BVISNULL( &opc->sdn ))
1416 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1417 op->o_callback = cb->sc_next;
1418 op->o_tmpfree(cb, op->o_tmpmemctx);
1424 syncprov_checkpoint( Operation *op, slap_overinst *on )
1426 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
1429 SlapReply rsm = {REP_RESULT};
1430 slap_callback cb = {0};
1435 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1438 for ( i=0; i<si->si_numcsns; i++ ) {
1439 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1442 mod.sml_numvals = si->si_numcsns;
1443 mod.sml_values = si->si_ctxcsn;
1444 mod.sml_nvalues = NULL;
1445 mod.sml_desc = slap_schema.si_ad_contextCSN;
1446 mod.sml_op = LDAP_MOD_REPLACE;
1447 mod.sml_flags = SLAP_MOD_INTERNAL;
1448 mod.sml_next = NULL;
1450 cb.sc_response = slap_null_cb;
1452 opm.o_tag = LDAP_REQ_MODIFY;
1453 opm.o_callback = &cb;
1454 opm.orm_modlist = &mod;
1455 opm.orm_no_opattrs = 1;
1456 if ( SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1457 be = *on->on_info->oi_origdb;
1460 opm.o_req_dn = si->si_contextdn;
1461 opm.o_req_ndn = si->si_contextdn;
1462 bi = opm.o_bd->bd_info;
1463 opm.o_bd->bd_info = on->on_info->oi_orig;
1464 opm.o_managedsait = SLAP_CONTROL_NONCRITICAL;
1465 opm.o_no_schema_check = 1;
1466 opm.o_bd->be_modify( &opm, &rsm );
1468 if ( rsm.sr_err == LDAP_NO_SUCH_OBJECT &&
1469 SLAP_SYNC_SUBENTRY( opm.o_bd )) {
1471 char txtbuf[SLAP_TEXT_BUFLEN];
1472 size_t textlen = sizeof txtbuf;
1473 Entry *e = slap_create_context_csn_entry( opm.o_bd, NULL );
1474 rs_reinit( &rsm, REP_RESULT );
1475 slap_mods2entry( &mod, &e, 0, 1, &text, txtbuf, textlen);
1477 opm.o_bd->be_add( &opm, &rsm );
1478 if ( e == opm.ora_e )
1479 be_entry_release_w( &opm, opm.ora_e );
1481 opm.o_bd->bd_info = bi;
1483 if ( mod.sml_next != NULL ) {
1484 slap_mods_free( mod.sml_next, 1 );
1487 for ( i=0; i<si->si_numcsns; i++ ) {
1488 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1494 syncprov_add_slog( Operation *op )
1496 opcookie *opc = op->o_callback->sc_private;
1497 slap_overinst *on = opc->son;
1498 syncprov_info_t *si = on->on_bi.bi_private;
1504 if ( BER_BVISEMPTY( &op->o_csn ) ) {
1505 /* During the syncrepl refresh phase we can receive operations
1506 * without a csn. We cannot reliably determine the consumers
1507 * state with respect to such operations, so we ignore them and
1508 * wipe out anything in the log if we see them.
1510 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1511 while ( se = sl->sl_head ) {
1512 sl->sl_head = se->se_next;
1517 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1521 /* Allocate a record. UUIDs are not NUL-terminated. */
1522 se = ch_malloc( sizeof( slog_entry ) + opc->suuid.bv_len +
1523 op->o_csn.bv_len + 1 );
1525 se->se_tag = op->o_tag;
1527 se->se_uuid.bv_val = (char *)(&se[1]);
1528 AC_MEMCPY( se->se_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1529 se->se_uuid.bv_len = opc->suuid.bv_len;
1531 se->se_csn.bv_val = se->se_uuid.bv_val + opc->suuid.bv_len;
1532 AC_MEMCPY( se->se_csn.bv_val, op->o_csn.bv_val, op->o_csn.bv_len );
1533 se->se_csn.bv_val[op->o_csn.bv_len] = '\0';
1534 se->se_csn.bv_len = op->o_csn.bv_len;
1535 se->se_sid = slap_parse_csn_sid( &se->se_csn );
1537 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1538 if ( sl->sl_head ) {
1539 /* Keep the list in csn order. */
1540 if ( ber_bvcmp( &sl->sl_tail->se_csn, &se->se_csn ) <= 0 ) {
1541 sl->sl_tail->se_next = se;
1546 for ( sep = &sl->sl_head; *sep; sep = &(*sep)->se_next ) {
1547 if ( ber_bvcmp( &se->se_csn, &(*sep)->se_csn ) < 0 ) {
1557 if ( !sl->sl_mincsn ) {
1559 sl->sl_mincsn = ch_malloc( 2*sizeof( struct berval ));
1560 sl->sl_sids = ch_malloc( sizeof( int ));
1561 sl->sl_sids[0] = se->se_sid;
1562 ber_dupbv( sl->sl_mincsn, &se->se_csn );
1563 BER_BVZERO( &sl->sl_mincsn[1] );
1567 while ( sl->sl_num > sl->sl_size ) {
1570 sl->sl_head = se->se_next;
1571 for ( i=0; i<sl->sl_numcsns; i++ )
1572 if ( sl->sl_sids[i] >= se->se_sid )
1574 if ( i == sl->sl_numcsns || sl->sl_sids[i] != se->se_sid ) {
1575 slap_insert_csn_sids( (struct sync_cookie *)sl,
1576 i, se->se_sid, &se->se_csn );
1578 ber_bvreplace( &sl->sl_mincsn[i], &se->se_csn );
1583 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1587 /* Just set a flag if we found the matching entry */
1589 playlog_cb( Operation *op, SlapReply *rs )
1591 if ( rs->sr_type == REP_SEARCH ) {
1592 op->o_callback->sc_private = (void *)1;
1597 /* enter with sl->sl_mutex locked, release before returning */
1599 syncprov_playlog( Operation *op, SlapReply *rs, sessionlog *sl,
1600 sync_control *srs, BerVarray ctxcsn, int numcsns, int *sids )
1602 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1604 int i, j, ndel, num, nmods, mmods;
1605 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
1607 struct berval delcsn[2];
1609 if ( !sl->sl_num ) {
1610 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1618 uuids = op->o_tmpalloc( (num+1) * sizeof( struct berval ) +
1619 num * UUID_LEN, op->o_tmpmemctx );
1620 uuids[0].bv_val = (char *)(uuids + num + 1);
1622 delcsn[0].bv_len = 0;
1623 delcsn[0].bv_val = cbuf;
1624 BER_BVZERO(&delcsn[1]);
1626 /* Make a copy of the relevant UUIDs. Put the Deletes up front
1627 * and everything else at the end. Do this first so we can
1628 * unlock the list mutex.
1630 Debug( LDAP_DEBUG_SYNC, "srs csn %s\n",
1631 srs->sr_state.ctxcsn[0].bv_val, 0, 0 );
1632 for ( se=sl->sl_head; se; se=se->se_next ) {
1634 Debug( LDAP_DEBUG_SYNC, "log csn %s\n", se->se_csn.bv_val, 0, 0 );
1636 for ( k=0; k<srs->sr_state.numcsns; k++ ) {
1637 if ( se->se_sid == srs->sr_state.sids[k] ) {
1638 ndel = ber_bvcmp( &se->se_csn, &srs->sr_state.ctxcsn[k] );
1643 Debug( LDAP_DEBUG_SYNC, "cmp %d, too old\n", ndel, 0, 0 );
1647 for ( k=0; k<numcsns; k++ ) {
1648 if ( se->se_sid == sids[k] ) {
1649 ndel = ber_bvcmp( &se->se_csn, &ctxcsn[k] );
1654 Debug( LDAP_DEBUG_SYNC, "cmp %d, too new\n", ndel, 0, 0 );
1657 if ( se->se_tag == LDAP_REQ_DELETE ) {
1660 AC_MEMCPY( cbuf, se->se_csn.bv_val, se->se_csn.bv_len );
1661 delcsn[0].bv_len = se->se_csn.bv_len;
1662 delcsn[0].bv_val[delcsn[0].bv_len] = '\0';
1664 if ( se->se_tag == LDAP_REQ_ADD )
1669 uuids[j].bv_val = uuids[0].bv_val + (j * UUID_LEN);
1670 AC_MEMCPY(uuids[j].bv_val, se->se_uuid.bv_val, UUID_LEN);
1671 uuids[j].bv_len = UUID_LEN;
1673 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1677 /* Zero out unused slots */
1678 for ( i=ndel; i < num - nmods; i++ )
1679 uuids[i].bv_len = 0;
1681 /* Mods must be validated to see if they belong in this delete set.
1685 /* Strip any duplicates */
1686 for ( i=0; i<nmods; i++ ) {
1687 for ( j=0; j<ndel; j++ ) {
1688 if ( bvmatch( &uuids[j], &uuids[num - 1 - i] )) {
1689 uuids[num - 1 - i].bv_len = 0;
1694 if ( uuids[num - 1 - i].bv_len == 0 ) continue;
1695 for ( j=0; j<i; j++ ) {
1696 if ( bvmatch( &uuids[num - 1 - j], &uuids[num - 1 - i] )) {
1697 uuids[num - 1 - i].bv_len = 0;
1708 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
1709 slap_callback cb = {0};
1713 fop.o_sync_mode = 0;
1714 fop.o_callback = &cb;
1715 fop.ors_limit = NULL;
1716 fop.ors_tlimit = SLAP_NO_LIMIT;
1717 fop.ors_attrs = slap_anlist_all_attributes;
1718 fop.ors_attrsonly = 0;
1719 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
1721 af.f_choice = LDAP_FILTER_AND;
1724 mf.f_choice = LDAP_FILTER_EQUALITY;
1726 mf.f_av_desc = slap_schema.si_ad_entryUUID;
1727 mf.f_next = fop.ors_filter;
1729 fop.ors_filter = ⁡
1731 cb.sc_response = playlog_cb;
1732 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
1734 for ( i=ndel; i<num; i++ ) {
1735 if ( uuids[i].bv_len != 0 ) {
1736 SlapReply frs = { REP_RESULT };
1738 mf.f_av_value = uuids[i];
1739 cb.sc_private = NULL;
1741 rc = fop.o_bd->be_search( &fop, &frs );
1743 /* If entry was not found, add to delete list */
1744 if ( !cb.sc_private ) {
1745 uuids[ndel++] = uuids[i];
1749 fop.o_bd->bd_info = (BackendInfo *)on;
1752 struct berval cookie;
1754 if ( delcsn[0].bv_len ) {
1755 slap_compose_sync_cookie( op, &cookie, delcsn, srs->sr_state.rid,
1756 slap_serverID ? slap_serverID : -1 );
1758 Debug( LDAP_DEBUG_SYNC, "syncprov_playlog: cookie=%s\n", cookie.bv_val, 0, 0 );
1761 uuids[ndel].bv_val = NULL;
1762 syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET,
1763 delcsn[0].bv_len ? &cookie : NULL, 0, uuids, 1 );
1764 if ( delcsn[0].bv_len ) {
1765 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
1768 op->o_tmpfree( uuids, op->o_tmpmemctx );
1772 syncprov_op_response( Operation *op, SlapReply *rs )
1774 opcookie *opc = op->o_callback->sc_private;
1775 slap_overinst *on = opc->son;
1776 syncprov_info_t *si = on->on_bi.bi_private;
1779 if ( rs->sr_err == LDAP_SUCCESS )
1781 struct berval maxcsn;
1782 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
1783 int do_check = 0, have_psearches, foundit, csn_changed = 0;
1785 ldap_pvt_thread_mutex_lock( &si->si_resp_mutex );
1787 /* Update our context CSN */
1789 maxcsn.bv_val = cbuf;
1790 maxcsn.bv_len = sizeof(cbuf);
1791 ldap_pvt_thread_rdwr_wlock( &si->si_csn_rwlock );
1793 slap_get_commit_csn( op, &maxcsn, &foundit );
1794 if ( BER_BVISEMPTY( &maxcsn ) && SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1795 /* syncrepl queues the CSN values in the db where
1796 * it is configured , not where the changes are made.
1797 * So look for a value in the glue db if we didn't
1798 * find any in this db.
1800 BackendDB *be = op->o_bd;
1801 op->o_bd = select_backend( &be->be_nsuffix[0], 1);
1802 maxcsn.bv_val = cbuf;
1803 maxcsn.bv_len = sizeof(cbuf);
1804 slap_get_commit_csn( op, &maxcsn, &foundit );
1807 if ( !BER_BVISEMPTY( &maxcsn ) ) {
1810 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1811 assert( !syn->ssyn_validate( syn, &maxcsn ));
1813 sid = slap_parse_csn_sid( &maxcsn );
1814 for ( i=0; i<si->si_numcsns; i++ ) {
1815 if ( sid < si->si_sids[i] )
1817 if ( sid == si->si_sids[i] ) {
1818 if ( ber_bvcmp( &maxcsn, &si->si_ctxcsn[i] ) > 0 ) {
1819 ber_bvreplace( &si->si_ctxcsn[i], &maxcsn );
1825 /* It's a new SID for us */
1826 if ( i == si->si_numcsns || sid != si->si_sids[i] ) {
1827 slap_insert_csn_sids((struct sync_cookie *)&(si->si_ctxcsn),
1833 /* Don't do any processing for consumer contextCSN updates */
1834 if ( op->o_dont_replicate ) {
1835 if ( op->o_tag == LDAP_REQ_MODIFY &&
1836 op->orm_modlist->sml_op == LDAP_MOD_REPLACE &&
1837 op->orm_modlist->sml_desc == slap_schema.si_ad_contextCSN ) {
1838 /* Catch contextCSN updates from syncrepl. We have to look at
1839 * all the attribute values, as there may be more than one csn
1840 * that changed, and only one can be passed in the csn queue.
1842 Modifications *mod = op->orm_modlist;
1846 for ( i=0; i<mod->sml_numvals; i++ ) {
1847 sid = slap_parse_csn_sid( &mod->sml_values[i] );
1848 for ( j=0; j<si->si_numcsns; j++ ) {
1849 if ( sid < si->si_sids[j] )
1851 if ( sid == si->si_sids[j] ) {
1852 if ( ber_bvcmp( &mod->sml_values[i], &si->si_ctxcsn[j] ) > 0 ) {
1853 ber_bvreplace( &si->si_ctxcsn[j], &mod->sml_values[i] );
1860 if ( j == si->si_numcsns || sid != si->si_sids[j] ) {
1861 slap_insert_csn_sids( (struct sync_cookie *)&si->si_ctxcsn,
1862 j, sid, &mod->sml_values[i] );
1868 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1870 if ( csn_changed ) {
1872 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1873 for ( ss = si->si_ops; ss; ss = ss->s_next ) {
1874 if ( ss->s_op->o_abandon )
1876 /* Send the updated csn to all syncrepl consumers,
1877 * including the server from which it originated.
1878 * The syncrepl consumer and syncprov provider on
1879 * the originating server may be configured to store
1880 * their csn values in different entries.
1882 syncprov_qresp( opc, ss, LDAP_SYNC_NEW_COOKIE );
1884 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1887 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1893 if ( si->si_chkops || si->si_chktime ) {
1894 /* Never checkpoint adding the context entry,
1897 if ( op->o_tag != LDAP_REQ_ADD ||
1898 !dn_match( &op->o_req_ndn, &si->si_contextdn )) {
1899 if ( si->si_chkops && si->si_numops >= si->si_chkops ) {
1903 if ( si->si_chktime &&
1904 (op->o_time - si->si_chklast >= si->si_chktime )) {
1905 if ( si->si_chklast ) {
1907 si->si_chklast = op->o_time;
1914 si->si_dirty = !csn_changed;
1915 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1918 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1919 syncprov_checkpoint( op, on );
1920 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1923 /* only update consumer ctx if this is a newer csn */
1924 if ( csn_changed ) {
1925 opc->sctxcsn = maxcsn;
1928 /* Handle any persistent searches */
1929 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1930 have_psearches = ( si->si_ops != NULL );
1931 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1932 if ( have_psearches ) {
1935 case LDAP_REQ_MODIFY:
1936 case LDAP_REQ_MODRDN:
1937 case LDAP_REQ_EXTENDED:
1938 syncprov_matchops( op, opc, 0 );
1940 case LDAP_REQ_DELETE:
1941 /* for each match in opc->smatches:
1944 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1945 if ( sm->sm_op->s_op->o_abandon )
1947 syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_DELETE );
1953 /* Add any log records */
1954 if ( si->si_logs ) {
1955 syncprov_add_slog( op );
1957 leave: ldap_pvt_thread_mutex_unlock( &si->si_resp_mutex );
1959 return SLAP_CB_CONTINUE;
1962 /* We don't use a subentry to store the context CSN any more.
1963 * We expose the current context CSN as an operational attribute
1964 * of the suffix entry.
1967 syncprov_op_compare( Operation *op, SlapReply *rs )
1969 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1970 syncprov_info_t *si = on->on_bi.bi_private;
1971 int rc = SLAP_CB_CONTINUE;
1973 if ( dn_match( &op->o_req_ndn, &si->si_contextdn ) &&
1974 op->oq_compare.rs_ava->aa_desc == slap_schema.si_ad_contextCSN )
1979 e.e_name = si->si_contextdn;
1980 e.e_nname = si->si_contextdn;
1983 a.a_desc = slap_schema.si_ad_contextCSN;
1985 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1987 a.a_vals = si->si_ctxcsn;
1988 a.a_nvals = a.a_vals;
1989 a.a_numvals = si->si_numcsns;
1991 rs->sr_err = access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc,
1992 &op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL );
1993 if ( ! rs->sr_err ) {
1994 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1995 goto return_results;
1998 if ( get_assert( op ) &&
1999 ( test_filter( op, &e, get_assertion( op ) ) != LDAP_COMPARE_TRUE ) )
2001 rs->sr_err = LDAP_ASSERTION_FAILED;
2002 goto return_results;
2006 rs->sr_err = LDAP_COMPARE_FALSE;
2008 if ( attr_valfind( &a,
2009 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
2010 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
2011 &op->oq_compare.rs_ava->aa_value, NULL, op->o_tmpmemctx ) == 0 )
2013 rs->sr_err = LDAP_COMPARE_TRUE;
2018 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2020 send_ldap_result( op, rs );
2022 if( rs->sr_err == LDAP_COMPARE_FALSE || rs->sr_err == LDAP_COMPARE_TRUE ) {
2023 rs->sr_err = LDAP_SUCCESS;
2032 syncprov_op_mod( Operation *op, SlapReply *rs )
2034 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2035 syncprov_info_t *si = on->on_bi.bi_private;
2038 int have_psearches, cbsize;
2040 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2041 have_psearches = ( si->si_ops != NULL );
2043 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2045 cbsize = sizeof(slap_callback) + sizeof(opcookie) +
2046 (have_psearches ? sizeof(modinst) : 0 );
2048 cb = op->o_tmpcalloc(1, cbsize, op->o_tmpmemctx);
2049 opc = (opcookie *)(cb+1);
2051 cb->sc_response = syncprov_op_response;
2052 cb->sc_cleanup = syncprov_op_cleanup;
2053 cb->sc_private = opc;
2054 cb->sc_next = op->o_callback;
2055 op->o_callback = cb;
2059 if ( op->o_csn.bv_val ) {
2060 opc->osid = slap_parse_csn_sid( &op->o_csn );
2062 if ( op->o_controls ) {
2063 struct sync_cookie *scook =
2064 op->o_controls[slap_cids.sc_LDAPsync];
2066 opc->rsid = scook->sid;
2069 if ( op->o_dont_replicate )
2070 return SLAP_CB_CONTINUE;
2072 /* If there are active persistent searches, lock this operation.
2073 * See seqmod.c for the locking logic on its own.
2075 if ( have_psearches ) {
2076 modtarget *mt, mtdummy;
2079 mi = (modinst *)(opc+1);
2082 /* See if we're already modifying this entry... */
2083 mtdummy.mt_dn = op->o_req_ndn;
2084 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
2085 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
2087 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
2088 if ( mt->mt_mods == NULL ) {
2089 /* Cannot reuse this mt, as another thread is about
2090 * to release it in syncprov_op_cleanup.
2092 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2097 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
2098 mt->mt_tail->mi_next = mi;
2100 /* wait for this op to get to head of list */
2101 while ( mt->mt_mods != mi ) {
2102 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2103 /* FIXME: if dynamic config can delete overlays or
2104 * databases we'll have to check for cleanup here.
2105 * Currently it's not an issue because there are
2106 * no dynamic config deletes...
2108 if ( slapd_shutdown )
2109 return SLAPD_ABANDON;
2111 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
2112 ldap_pvt_thread_yield();
2113 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
2115 /* clean up if the caller is giving up */
2116 if ( op->o_abandon ) {
2118 for ( m2 = mt->mt_mods; m2 && m2->mi_next != mi;
2121 m2->mi_next = mi->mi_next;
2122 if ( mt->mt_tail == mi ) mt->mt_tail = m2;
2124 op->o_tmpfree( cb, op->o_tmpmemctx );
2125 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2126 return SLAPD_ABANDON;
2129 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2131 /* Record that we're modifying this entry now */
2132 mt = ch_malloc( sizeof(modtarget) );
2135 ber_dupbv( &mt->mt_dn, &mi->mi_op->o_req_ndn );
2136 ldap_pvt_thread_mutex_init( &mt->mt_mutex );
2137 avl_insert( &si->si_mods, mt, sp_avl_cmp, avl_dup_error );
2138 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
2143 if (( have_psearches || si->si_logs ) && op->o_tag != LDAP_REQ_ADD )
2144 syncprov_matchops( op, opc, 1 );
2146 return SLAP_CB_CONTINUE;
2150 syncprov_op_extended( Operation *op, SlapReply *rs )
2152 if ( exop_is_write( op ))
2153 return syncprov_op_mod( op, rs );
2155 return SLAP_CB_CONTINUE;
2158 typedef struct searchstate {
2159 slap_overinst *ss_on;
2161 BerVarray ss_ctxcsn;
2164 #define SS_PRESENT 0x01
2165 #define SS_CHANGED 0x02
2169 typedef struct SyncOperationBuffer {
2173 AttributeName sob_extra; /* not always present */
2174 /* Further data allocated here */
2175 } SyncOperationBuffer;
2178 syncprov_detach_op( Operation *op, syncops *so, slap_overinst *on )
2180 SyncOperationBuffer *sopbuf2;
2185 GroupAssertion *g1, *g2;
2187 /* count the search attrs */
2188 for (i=0; op->ors_attrs && !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2189 alen += op->ors_attrs[i].an_name.bv_len + 1;
2191 /* Make a new copy of the operation */
2192 size = offsetof( SyncOperationBuffer, sob_extra ) +
2193 (i ? ( (i+1) * sizeof(AttributeName) + alen) : 0) +
2194 op->o_req_dn.bv_len + 1 +
2195 op->o_req_ndn.bv_len + 1 +
2196 op->o_ndn.bv_len + 1 +
2197 so->s_filterstr.bv_len + 1;
2198 sopbuf2 = ch_calloc( 1, size );
2199 op2 = &sopbuf2->sob_op;
2200 op2->o_hdr = &sopbuf2->sob_hdr;
2201 LDAP_SLIST_FIRST(&op2->o_extra) = &sopbuf2->sob_oe;
2203 /* Copy the fields we care about explicitly, leave the rest alone */
2204 *op2->o_hdr = *op->o_hdr;
2205 op2->o_tag = op->o_tag;
2206 op2->o_time = op->o_time;
2207 op2->o_bd = on->on_info->oi_origdb;
2208 op2->o_request = op->o_request;
2209 op2->o_managedsait = op->o_managedsait;
2210 LDAP_SLIST_FIRST(&op2->o_extra)->oe_key = on;
2211 LDAP_SLIST_NEXT(LDAP_SLIST_FIRST(&op2->o_extra), oe_next) = NULL;
2213 ptr = (char *) sopbuf2 + offsetof( SyncOperationBuffer, sob_extra );
2215 op2->ors_attrs = (AttributeName *) ptr;
2216 ptr = (char *) &op2->ors_attrs[i+1];
2217 for (i=0; !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2218 op2->ors_attrs[i] = op->ors_attrs[i];
2219 op2->ors_attrs[i].an_name.bv_val = ptr;
2220 ptr = lutil_strcopy( ptr, op->ors_attrs[i].an_name.bv_val ) + 1;
2222 BER_BVZERO( &op2->ors_attrs[i].an_name );
2225 op2->o_authz = op->o_authz;
2226 op2->o_ndn.bv_val = ptr;
2227 ptr = lutil_strcopy(ptr, op->o_ndn.bv_val) + 1;
2228 op2->o_dn = op2->o_ndn;
2229 op2->o_req_dn.bv_len = op->o_req_dn.bv_len;
2230 op2->o_req_dn.bv_val = ptr;
2231 ptr = lutil_strcopy(ptr, op->o_req_dn.bv_val) + 1;
2232 op2->o_req_ndn.bv_len = op->o_req_ndn.bv_len;
2233 op2->o_req_ndn.bv_val = ptr;
2234 ptr = lutil_strcopy(ptr, op->o_req_ndn.bv_val) + 1;
2235 op2->ors_filterstr.bv_val = ptr;
2236 strcpy( ptr, so->s_filterstr.bv_val );
2237 op2->ors_filterstr.bv_len = so->s_filterstr.bv_len;
2239 /* Skip the AND/GE clause that we stuck on in front */
2240 if ( so->s_flags & PS_FIX_FILTER ) {
2241 op2->ors_filter = op->ors_filter->f_and->f_next;
2242 so->s_flags ^= PS_FIX_FILTER;
2244 op2->ors_filter = op->ors_filter;
2246 op2->ors_filter = filter_dup( op2->ors_filter, NULL );
2249 /* Copy any cached group ACLs individually */
2250 op2->o_groups = NULL;
2251 for ( g1=op->o_groups; g1; g1=g1->ga_next ) {
2252 g2 = ch_malloc( sizeof(GroupAssertion) + g1->ga_len );
2254 strcpy( g2->ga_ndn, g1->ga_ndn );
2255 g2->ga_next = op2->o_groups;
2258 /* Don't allow any further group caching */
2259 op2->o_do_not_cache = 1;
2261 /* Add op2 to conn so abandon will find us */
2262 op->o_conn->c_n_ops_executing++;
2263 op->o_conn->c_n_ops_completed--;
2264 LDAP_STAILQ_INSERT_TAIL( &op->o_conn->c_ops, op2, o_next );
2265 so->s_flags |= PS_IS_DETACHED;
2267 /* Prevent anyone else from trying to send a result for this op */
2272 syncprov_search_response( Operation *op, SlapReply *rs )
2274 searchstate *ss = op->o_callback->sc_private;
2275 slap_overinst *on = ss->ss_on;
2276 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2277 sync_control *srs = op->o_controls[slap_cids.sc_LDAPsync];
2279 if ( rs->sr_type == REP_SEARCH || rs->sr_type == REP_SEARCHREF ) {
2281 /* If we got a referral without a referral object, there's
2282 * something missing that we cannot replicate. Just ignore it.
2283 * The consumer will abort because we didn't send the expected
2286 if ( !rs->sr_entry ) {
2287 assert( rs->sr_entry != NULL );
2288 Debug( LDAP_DEBUG_ANY, "bogus referral in context\n",0,0,0 );
2289 return SLAP_CB_CONTINUE;
2291 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryCSN );
2292 if ( a == NULL && rs->sr_operational_attrs != NULL ) {
2293 a = attr_find( rs->sr_operational_attrs, slap_schema.si_ad_entryCSN );
2297 sid = slap_parse_csn_sid( &a->a_nvals[0] );
2299 /* Don't send changed entries back to the originator */
2300 if ( sid == srs->sr_state.sid && srs->sr_state.numcsns ) {
2301 Debug( LDAP_DEBUG_SYNC,
2302 "Entry %s changed by peer, ignored\n",
2303 rs->sr_entry->e_name.bv_val, 0, 0 );
2304 return LDAP_SUCCESS;
2307 /* If not a persistent search */
2309 /* Make sure entry is less than the snapshot'd contextCSN */
2310 for ( i=0; i<ss->ss_numcsns; i++ ) {
2311 if ( sid == ss->ss_sids[i] && ber_bvcmp( &a->a_nvals[0],
2312 &ss->ss_ctxcsn[i] ) > 0 ) {
2313 Debug( LDAP_DEBUG_SYNC,
2314 "Entry %s CSN %s greater than snapshot %s\n",
2315 rs->sr_entry->e_name.bv_val,
2316 a->a_nvals[0].bv_val,
2317 ss->ss_ctxcsn[i].bv_val );
2318 return LDAP_SUCCESS;
2323 /* Don't send old entries twice */
2324 if ( srs->sr_state.ctxcsn ) {
2325 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2326 if ( sid == srs->sr_state.sids[i] &&
2327 ber_bvcmp( &a->a_nvals[0],
2328 &srs->sr_state.ctxcsn[i] )<= 0 ) {
2329 Debug( LDAP_DEBUG_SYNC,
2330 "Entry %s CSN %s older or equal to ctx %s\n",
2331 rs->sr_entry->e_name.bv_val,
2332 a->a_nvals[0].bv_val,
2333 srs->sr_state.ctxcsn[i].bv_val );
2334 return LDAP_SUCCESS;
2339 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2341 rs->sr_ctrls[1] = NULL;
2342 rs->sr_flags |= REP_CTRLS_MUSTBEFREED;
2343 /* If we're in delta-sync mode, always send a cookie */
2344 if ( si->si_nopres && si->si_usehint && a ) {
2345 struct berval cookie;
2346 slap_compose_sync_cookie( op, &cookie, a->a_nvals, srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
2347 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2348 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 1, &cookie );
2349 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2351 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2352 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 0, NULL );
2354 } else if ( rs->sr_type == REP_RESULT && rs->sr_err == LDAP_SUCCESS ) {
2355 struct berval cookie = BER_BVNULL;
2357 if ( ( ss->ss_flags & SS_CHANGED ) &&
2358 ss->ss_ctxcsn && !BER_BVISNULL( &ss->ss_ctxcsn[0] )) {
2359 slap_compose_sync_cookie( op, &cookie, ss->ss_ctxcsn,
2360 srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
2362 Debug( LDAP_DEBUG_SYNC, "syncprov_search_response: cookie=%s\n", cookie.bv_val, 0, 0 );
2365 /* Is this a regular refresh?
2366 * Note: refresh never gets here if there were no changes
2369 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2371 rs->sr_ctrls[1] = NULL;
2372 rs->sr_flags |= REP_CTRLS_MUSTBEFREED;
2373 rs->sr_err = syncprov_done_ctrl( op, rs, rs->sr_ctrls,
2374 0, 1, &cookie, ( ss->ss_flags & SS_PRESENT ) ? LDAP_SYNC_REFRESH_PRESENTS :
2375 LDAP_SYNC_REFRESH_DELETES );
2376 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2378 /* It's RefreshAndPersist, transition to Persist phase */
2379 syncprov_sendinfo( op, rs, ( ss->ss_flags & SS_PRESENT ) ?
2380 LDAP_TAG_SYNC_REFRESH_PRESENT : LDAP_TAG_SYNC_REFRESH_DELETE,
2381 ( ss->ss_flags & SS_CHANGED ) ? &cookie : NULL,
2383 if ( !BER_BVISNULL( &cookie ))
2384 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2386 /* Detach this Op from frontend control */
2387 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
2389 /* But not if this connection was closed along the way */
2390 if ( op->o_abandon ) {
2391 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2392 /* syncprov_ab_cleanup will free this syncop */
2393 return SLAPD_ABANDON;
2396 ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex );
2397 /* Turn off the refreshing flag */
2398 ss->ss_so->s_flags ^= PS_IS_REFRESHING;
2400 syncprov_detach_op( op, ss->ss_so, on );
2402 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2404 /* If there are queued responses, fire them off */
2405 if ( ss->ss_so->s_res )
2406 syncprov_qstart( ss->ss_so );
2407 ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
2410 return LDAP_SUCCESS;
2414 return SLAP_CB_CONTINUE;
2418 syncprov_op_search( Operation *op, SlapReply *rs )
2420 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2421 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2423 int gotstate = 0, changed = 0, do_present = 0;
2424 syncops *sop = NULL;
2428 int i, *sids, numcsns;
2429 struct berval mincsn, maxcsn;
2433 if ( !(op->o_sync_mode & SLAP_SYNC_REFRESH) ) return SLAP_CB_CONTINUE;
2435 if ( op->ors_deref & LDAP_DEREF_SEARCHING ) {
2436 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR, "illegal value for derefAliases" );
2440 srs = op->o_controls[slap_cids.sc_LDAPsync];
2442 /* If this is a persistent search, set it up right away */
2443 if ( op->o_sync_mode & SLAP_SYNC_PERSIST ) {
2453 so.s_flags = PS_IS_REFRESHING | PS_FIND_BASE;
2454 /* syncprov_findbase expects to be called as a callback... */
2455 sc.sc_private = &opc;
2457 ldap_pvt_thread_mutex_init( &so.s_mutex );
2458 cb = op->o_callback;
2459 op->o_callback = ≻
2460 rs->sr_err = syncprov_findbase( op, &fc );
2461 op->o_callback = cb;
2462 ldap_pvt_thread_mutex_destroy( &so.s_mutex );
2464 if ( rs->sr_err != LDAP_SUCCESS ) {
2465 send_ldap_result( op, rs );
2468 sop = ch_malloc( sizeof( syncops ));
2470 ldap_pvt_thread_mutex_init( &sop->s_mutex );
2471 sop->s_rid = srs->sr_state.rid;
2472 sop->s_sid = srs->sr_state.sid;
2473 /* set refcount=2 to prevent being freed out from under us
2474 * by abandons that occur while we're running here
2478 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2479 while ( si->si_active ) {
2480 /* Wait for active mods to finish before proceeding, as they
2481 * may already have inspected the si_ops list looking for
2482 * consumers to replicate the change to. Using the log
2483 * doesn't help, as we may finish playing it before the
2484 * active mods gets added to it.
2486 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2487 if ( slapd_shutdown ) {
2489 return SLAPD_ABANDON;
2491 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
2492 ldap_pvt_thread_yield();
2493 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2495 sop->s_next = si->si_ops;
2497 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2500 /* snapshot the ctxcsn */
2501 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2502 numcsns = si->si_numcsns;
2504 ber_bvarray_dup_x( &ctxcsn, si->si_ctxcsn, op->o_tmpmemctx );
2505 sids = op->o_tmpalloc( numcsns * sizeof(int), op->o_tmpmemctx );
2506 for ( i=0; i<numcsns; i++ )
2507 sids[i] = si->si_sids[i];
2512 dirty = si->si_dirty;
2513 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2515 /* If we have a cookie, handle the PRESENT lookups */
2516 if ( srs->sr_state.ctxcsn ) {
2520 /* If we don't have any CSN of our own yet, pretend nothing
2526 if ( !si->si_nopres )
2527 do_present = SS_PRESENT;
2529 /* If there are SIDs we don't recognize in the cookie, drop them */
2530 for (i=0; i<srs->sr_state.numcsns; ) {
2531 for (j=i; j<numcsns; j++) {
2532 if ( srs->sr_state.sids[i] <= sids[j] ) {
2537 if ( j == numcsns || srs->sr_state.sids[i] != sids[j] ) {
2538 char *tmp = srs->sr_state.ctxcsn[i].bv_val;
2539 srs->sr_state.numcsns--;
2540 for ( j=i; j<srs->sr_state.numcsns; j++ ) {
2541 srs->sr_state.ctxcsn[j] = srs->sr_state.ctxcsn[j+1];
2542 srs->sr_state.sids[j] = srs->sr_state.sids[j+1];
2544 srs->sr_state.ctxcsn[j].bv_val = tmp;
2545 srs->sr_state.ctxcsn[j].bv_len = 0;
2551 if (srs->sr_state.numcsns != numcsns) {
2552 /* consumer doesn't have the right number of CSNs */
2553 changed = SS_CHANGED;
2554 if ( srs->sr_state.ctxcsn ) {
2555 ber_bvarray_free_x( srs->sr_state.ctxcsn, op->o_tmpmemctx );
2556 srs->sr_state.ctxcsn = NULL;
2558 if ( srs->sr_state.sids ) {
2559 slap_sl_free( srs->sr_state.sids, op->o_tmpmemctx );
2560 srs->sr_state.sids = NULL;
2562 srs->sr_state.numcsns = 0;
2566 /* Find the smallest CSN which differs from contextCSN */
2569 for ( i=0,j=0; i<srs->sr_state.numcsns; i++ ) {
2571 while ( srs->sr_state.sids[i] != sids[j] ) j++;
2572 if ( BER_BVISEMPTY( &maxcsn ) || ber_bvcmp( &maxcsn,
2573 &srs->sr_state.ctxcsn[i] ) < 0 ) {
2574 maxcsn = srs->sr_state.ctxcsn[i];
2577 newer = ber_bvcmp( &srs->sr_state.ctxcsn[i], &ctxcsn[j] );
2578 /* If our state is newer, tell consumer about changes */
2580 changed = SS_CHANGED;
2581 if ( BER_BVISEMPTY( &mincsn ) || ber_bvcmp( &mincsn,
2582 &srs->sr_state.ctxcsn[i] ) > 0 ) {
2583 mincsn = srs->sr_state.ctxcsn[i];
2586 } else if ( newer > 0 && sids[j] == slap_serverID ) {
2587 /* our state is older, complain to consumer */
2588 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
2589 rs->sr_text = "consumer state is newer than provider!";
2592 syncops **sp = &si->si_ops;
2594 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2595 while ( *sp != sop )
2596 sp = &(*sp)->s_next;
2598 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2601 rs->sr_ctrls = NULL;
2602 send_ldap_result( op, rs );
2606 if ( BER_BVISEMPTY( &mincsn )) {
2611 /* If nothing has changed, shortcut it */
2612 if ( !changed && !dirty ) {
2614 no_change: if ( !(op->o_sync_mode & SLAP_SYNC_PERSIST) ) {
2615 LDAPControl *ctrls[2];
2619 syncprov_done_ctrl( op, rs, ctrls, 0, 0,
2620 NULL, LDAP_SYNC_REFRESH_DELETES );
2621 rs->sr_ctrls = ctrls;
2622 rs->sr_err = LDAP_SUCCESS;
2623 send_ldap_result( op, rs );
2624 rs->sr_ctrls = NULL;
2630 /* Do we have a sessionlog for this search? */
2634 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
2635 /* Are there any log entries, and is the consumer state
2636 * present in the session log?
2638 if ( sl->sl_num > 0 ) {
2640 for ( i=0; i<sl->sl_numcsns; i++ ) {
2641 /* SID not present == new enough */
2642 if ( minsid < sl->sl_sids[i] ) {
2647 if ( minsid == sl->sl_sids[i] ) {
2649 if ( ber_bvcmp( &mincsn, &sl->sl_mincsn[i] ) >= 0 )
2654 /* SID not present == new enough */
2655 if ( i == sl->sl_numcsns )
2660 /* mutex is unlocked in playlog */
2661 syncprov_playlog( op, rs, sl, srs, ctxcsn, numcsns, sids );
2663 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
2666 /* Is the CSN still present in the database? */
2667 if ( syncprov_findcsn( op, FIND_CSN, &mincsn ) != LDAP_SUCCESS ) {
2668 /* No, so a reload is required */
2669 /* the 2.2 consumer doesn't send this hint */
2670 if ( si->si_usehint && srs->sr_rhint == 0 ) {
2672 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2674 op->o_tmpfree( sids, op->o_tmpmemctx );
2675 rs->sr_err = LDAP_SYNC_REFRESH_REQUIRED;
2676 rs->sr_text = "sync cookie is stale";
2679 if ( srs->sr_state.ctxcsn ) {
2680 ber_bvarray_free_x( srs->sr_state.ctxcsn, op->o_tmpmemctx );
2681 srs->sr_state.ctxcsn = NULL;
2683 if ( srs->sr_state.sids ) {
2684 slap_sl_free( srs->sr_state.sids, op->o_tmpmemctx );
2685 srs->sr_state.sids = NULL;
2687 srs->sr_state.numcsns = 0;
2690 /* If changed and doing Present lookup, send Present UUIDs */
2691 if ( do_present && syncprov_findcsn( op, FIND_PRESENT, 0 ) !=
2694 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2696 op->o_tmpfree( sids, op->o_tmpmemctx );
2701 /* No consumer state, assume something has changed */
2702 changed = SS_CHANGED;
2706 /* Append CSN range to search filter, save original filter
2707 * for persistent search evaluation
2710 ldap_pvt_thread_mutex_lock( &sop->s_mutex );
2711 sop->s_filterstr = op->ors_filterstr;
2712 /* correct the refcount that was set to 2 before */
2716 /* If something changed, find the changes */
2717 if ( gotstate && ( changed || dirty ) ) {
2718 Filter *fand, *fava;
2720 fand = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2721 fand->f_choice = LDAP_FILTER_AND;
2722 fand->f_next = NULL;
2723 fava = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2725 fava->f_choice = LDAP_FILTER_GE;
2726 fava->f_ava = op->o_tmpalloc( sizeof(AttributeAssertion), op->o_tmpmemctx );
2727 fava->f_ava->aa_desc = slap_schema.si_ad_entryCSN;
2728 #ifdef LDAP_COMP_MATCH
2729 fava->f_ava->aa_cf = NULL;
2731 ber_dupbv_x( &fava->f_ava->aa_value, &mincsn, op->o_tmpmemctx );
2732 fava->f_next = op->ors_filter;
2733 op->ors_filter = fand;
2734 filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2736 sop->s_flags |= PS_FIX_FILTER;
2740 ldap_pvt_thread_mutex_unlock( &sop->s_mutex );
2743 /* Let our callback add needed info to returned entries */
2744 cb = op->o_tmpcalloc(1, sizeof(slap_callback)+sizeof(searchstate), op->o_tmpmemctx);
2745 ss = (searchstate *)(cb+1);
2748 ss->ss_flags = do_present | changed;
2749 ss->ss_ctxcsn = ctxcsn;
2750 ss->ss_numcsns = numcsns;
2752 cb->sc_response = syncprov_search_response;
2753 cb->sc_private = ss;
2754 cb->sc_next = op->o_callback;
2755 op->o_callback = cb;
2757 /* If this is a persistent search and no changes were reported during
2758 * the refresh phase, just invoke the response callback to transition
2759 * us into persist phase
2761 if ( !changed && !dirty ) {
2762 rs->sr_err = LDAP_SUCCESS;
2763 rs->sr_nentries = 0;
2764 send_ldap_result( op, rs );
2767 return SLAP_CB_CONTINUE;
2771 syncprov_operational(
2775 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2776 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2778 /* This prevents generating unnecessarily; frontend will strip
2779 * any statically stored copy.
2781 if ( op->o_sync != SLAP_CONTROL_NONE )
2782 return SLAP_CB_CONTINUE;
2784 if ( rs->sr_entry &&
2785 dn_match( &rs->sr_entry->e_nname, &si->si_contextdn )) {
2787 if ( SLAP_OPATTRS( rs->sr_attr_flags ) ||
2788 ad_inlist( slap_schema.si_ad_contextCSN, rs->sr_attrs )) {
2789 Attribute *a, **ap = NULL;
2791 for ( a=rs->sr_entry->e_attrs; a; a=a->a_next ) {
2792 if ( a->a_desc == slap_schema.si_ad_contextCSN )
2796 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2797 if ( si->si_ctxcsn ) {
2799 for ( ap = &rs->sr_operational_attrs; *ap;
2800 ap=&(*ap)->a_next );
2802 a = attr_alloc( slap_schema.si_ad_contextCSN );
2807 if ( rs_entry2modifiable( op, rs, on )) {
2808 a = attr_find( rs->sr_entry->e_attrs,
2809 slap_schema.si_ad_contextCSN );
2811 if ( a->a_nvals != a->a_vals ) {
2812 ber_bvarray_free( a->a_nvals );
2815 ber_bvarray_free( a->a_vals );
2819 attr_valadd( a, si->si_ctxcsn, si->si_ctxcsn, si->si_numcsns );
2821 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2824 return SLAP_CB_CONTINUE;
2834 static ConfigDriver sp_cf_gen;
2836 static ConfigTable spcfg[] = {
2837 { "syncprov-checkpoint", "ops> <minutes", 3, 3, 0, ARG_MAGIC|SP_CHKPT,
2838 sp_cf_gen, "( OLcfgOvAt:1.1 NAME 'olcSpCheckpoint' "
2839 "DESC 'ContextCSN checkpoint interval in ops and minutes' "
2840 "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
2841 { "syncprov-sessionlog", "ops", 2, 2, 0, ARG_INT|ARG_MAGIC|SP_SESSL,
2842 sp_cf_gen, "( OLcfgOvAt:1.2 NAME 'olcSpSessionlog' "
2843 "DESC 'Session log size in ops' "
2844 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
2845 { "syncprov-nopresent", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_NOPRES,
2846 sp_cf_gen, "( OLcfgOvAt:1.3 NAME 'olcSpNoPresent' "
2847 "DESC 'Omit Present phase processing' "
2848 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2849 { "syncprov-reloadhint", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_USEHINT,
2850 sp_cf_gen, "( OLcfgOvAt:1.4 NAME 'olcSpReloadHint' "
2851 "DESC 'Observe Reload Hint in Request control' "
2852 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2853 { NULL, NULL, 0, 0, 0, ARG_IGNORED }
2856 static ConfigOCs spocs[] = {
2857 { "( OLcfgOvOc:1.1 "
2858 "NAME 'olcSyncProvConfig' "
2859 "DESC 'SyncRepl Provider configuration' "
2860 "SUP olcOverlayConfig "
2861 "MAY ( olcSpCheckpoint "
2862 "$ olcSpSessionlog "
2864 "$ olcSpReloadHint "
2866 Cft_Overlay, spcfg },
2871 sp_cf_gen(ConfigArgs *c)
2873 slap_overinst *on = (slap_overinst *)c->bi;
2874 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2877 if ( c->op == SLAP_CONFIG_EMIT ) {
2878 switch ( c->type ) {
2880 if ( si->si_chkops || si->si_chktime ) {
2882 /* we assume si_chktime is a multiple of 60
2883 * because the parsed value was originally
2884 * multiplied by 60 */
2885 bv.bv_len = snprintf( c->cr_msg, sizeof( c->cr_msg ),
2886 "%d %d", si->si_chkops, si->si_chktime/60 );
2887 if ( bv.bv_len >= sizeof( c->cr_msg ) ) {
2890 bv.bv_val = c->cr_msg;
2891 value_add_one( &c->rvalue_vals, &bv );
2898 if ( si->si_logs ) {
2899 c->value_int = si->si_logs->sl_size;
2905 if ( si->si_nopres ) {
2912 if ( si->si_usehint ) {
2920 } else if ( c->op == LDAP_MOD_DELETE ) {
2921 switch ( c->type ) {
2928 si->si_logs->sl_size = 0;
2930 rc = LDAP_NO_SUCH_ATTRIBUTE;
2933 if ( si->si_nopres )
2936 rc = LDAP_NO_SUCH_ATTRIBUTE;
2939 if ( si->si_usehint )
2942 rc = LDAP_NO_SUCH_ATTRIBUTE;
2947 switch ( c->type ) {
2949 if ( lutil_atoi( &si->si_chkops, c->argv[1] ) != 0 ) {
2950 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint ops # \"%s\"",
2951 c->argv[0], c->argv[1] );
2952 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2953 "%s: %s\n", c->log, c->cr_msg, 0 );
2954 return ARG_BAD_CONF;
2956 if ( si->si_chkops <= 0 ) {
2957 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint ops # \"%d\"",
2958 c->argv[0], si->si_chkops );
2959 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2960 "%s: %s\n", c->log, c->cr_msg, 0 );
2961 return ARG_BAD_CONF;
2963 if ( lutil_atoi( &si->si_chktime, c->argv[2] ) != 0 ) {
2964 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint time \"%s\"",
2965 c->argv[0], c->argv[1] );
2966 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2967 "%s: %s\n", c->log, c->cr_msg, 0 );
2968 return ARG_BAD_CONF;
2970 if ( si->si_chktime <= 0 ) {
2971 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint time \"%d\"",
2972 c->argv[0], si->si_chkops );
2973 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2974 "%s: %s\n", c->log, c->cr_msg, 0 );
2975 return ARG_BAD_CONF;
2977 si->si_chktime *= 60;
2981 int size = c->value_int;
2984 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s size %d is negative",
2986 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2987 "%s: %s\n", c->log, c->cr_msg, 0 );
2988 return ARG_BAD_CONF;
2992 sl = ch_malloc( sizeof( sessionlog ));
2993 sl->sl_mincsn = NULL;
2997 sl->sl_head = sl->sl_tail = NULL;
2998 ldap_pvt_thread_mutex_init( &sl->sl_mutex );
3005 si->si_nopres = c->value_int;
3008 si->si_usehint = c->value_int;
3014 /* ITS#3456 we cannot run this search on the main thread, must use a
3015 * child thread in order to insure we have a big enough stack.
3022 syncprov_findcsn( ptr, FIND_MAXCSN, 0 );
3027 /* Read any existing contextCSN from the underlying db.
3028 * Then search for any entries newer than that. If no value exists,
3029 * just generate it. Cache whatever result.
3037 slap_overinst *on = (slap_overinst *) be->bd_info;
3038 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3040 Connection conn = { 0 };
3041 OperationBuffer opbuf;
3046 void *thrctx = NULL;
3048 if ( !SLAP_LASTMOD( be )) {
3049 Debug( LDAP_DEBUG_ANY,
3050 "syncprov_db_open: invalid config, lastmod must be enabled\n", 0, 0, 0 );
3054 if ( slapMode & SLAP_TOOL_MODE ) {
3058 rc = overlay_register_control( be, LDAP_CONTROL_SYNC );
3063 thrctx = ldap_pvt_thread_pool_context();
3064 connection_fake_init2( &conn, &opbuf, thrctx, 0 );
3067 op->o_dn = be->be_rootdn;
3068 op->o_ndn = be->be_rootndn;
3070 if ( SLAP_SYNC_SUBENTRY( be )) {
3071 build_new_dn( &si->si_contextdn, be->be_nsuffix,
3072 (struct berval *)&slap_ldapsync_cn_bv, NULL );
3074 si->si_contextdn = be->be_nsuffix[0];
3076 rc = overlay_entry_get_ov( op, &si->si_contextdn, NULL,
3077 slap_schema.si_ad_contextCSN, 0, &e, on );
3080 ldap_pvt_thread_t tid;
3082 a = attr_find( e->e_attrs, slap_schema.si_ad_contextCSN );
3084 ber_bvarray_dup_x( &si->si_ctxcsn, a->a_vals, NULL );
3085 si->si_numcsns = a->a_numvals;
3086 si->si_sids = slap_parse_csn_sids( si->si_ctxcsn, a->a_numvals, NULL );
3087 slap_sort_csn_sids( si->si_ctxcsn, si->si_sids, si->si_numcsns, NULL );
3089 overlay_entry_release_ov( op, e, 0, on );
3090 if ( si->si_ctxcsn && !SLAP_DBCLEAN( be )) {
3091 op->o_tag = LDAP_REQ_SEARCH;
3092 op->o_req_dn = be->be_suffix[0];
3093 op->o_req_ndn = be->be_nsuffix[0];
3094 op->ors_scope = LDAP_SCOPE_SUBTREE;
3095 ldap_pvt_thread_create( &tid, 0, syncprov_db_otask, op );
3096 ldap_pvt_thread_join( tid, NULL );
3100 /* Didn't find a contextCSN, should we generate one? */
3101 if ( !si->si_ctxcsn ) {
3102 char csnbuf[ LDAP_PVT_CSNSTR_BUFSIZE ];
3105 if ( SLAP_SYNC_SHADOW( op->o_bd )) {
3106 /* If we're also a consumer, then don't generate anything.
3107 * Wait for our provider to send it to us, or for a local
3108 * modify if we have multimaster.
3112 csn.bv_val = csnbuf;
3113 csn.bv_len = sizeof( csnbuf );
3114 slap_get_csn( op, &csn, 0 );
3115 value_add_one( &si->si_ctxcsn, &csn );
3117 si->si_sids = ch_malloc( sizeof(int) );
3118 si->si_sids[0] = slap_serverID;
3120 /* make sure we do a checkpoint on close */
3124 /* Initialize the sessionlog mincsn */
3125 if ( si->si_logs && si->si_numcsns ) {
3126 sessionlog *sl = si->si_logs;
3128 ber_bvarray_dup_x( &sl->sl_mincsn, si->si_ctxcsn, NULL );
3129 sl->sl_numcsns = si->si_numcsns;
3130 sl->sl_sids = ch_malloc( si->si_numcsns * sizeof(int) );
3131 for ( i=0; i < si->si_numcsns; i++ )
3132 sl->sl_sids[i] = si->si_sids[i];
3136 op->o_bd->bd_info = (BackendInfo *)on;
3140 /* Write the current contextCSN into the underlying db.
3148 slap_overinst *on = (slap_overinst *) be->bd_info;
3149 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3150 #ifdef SLAP_CONFIG_DELETE
3151 syncops *so, *sonext;
3152 #endif /* SLAP_CONFIG_DELETE */
3154 if ( slapMode & SLAP_TOOL_MODE ) {
3157 if ( si->si_numops ) {
3158 Connection conn = {0};
3159 OperationBuffer opbuf;
3163 thrctx = ldap_pvt_thread_pool_context();
3164 connection_fake_init2( &conn, &opbuf, thrctx, 0 );
3167 op->o_dn = be->be_rootdn;
3168 op->o_ndn = be->be_rootndn;
3169 syncprov_checkpoint( op, on );
3172 #ifdef SLAP_CONFIG_DELETE
3173 if ( !slapd_shutdown ) {
3174 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
3175 for ( so=si->si_ops, sonext=so; so; so=sonext ) {
3176 SlapReply rs = {REP_RESULT};
3177 rs.sr_err = LDAP_UNAVAILABLE;
3178 send_ldap_result( so->s_op, &rs );
3180 syncprov_drop_psearch( so, 0);
3183 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
3185 overlay_unregister_control( be, LDAP_CONTROL_SYNC );
3186 #endif /* SLAP_CONFIG_DELETE */
3197 slap_overinst *on = (slap_overinst *)be->bd_info;
3198 syncprov_info_t *si;
3200 if ( SLAP_ISGLOBALOVERLAY( be ) ) {
3201 Debug( LDAP_DEBUG_ANY,
3202 "syncprov must be instantiated within a database.\n",
3207 si = ch_calloc(1, sizeof(syncprov_info_t));
3208 on->on_bi.bi_private = si;
3209 ldap_pvt_thread_rdwr_init( &si->si_csn_rwlock );
3210 ldap_pvt_thread_mutex_init( &si->si_ops_mutex );
3211 ldap_pvt_thread_mutex_init( &si->si_mods_mutex );
3212 ldap_pvt_thread_mutex_init( &si->si_resp_mutex );
3214 csn_anlist[0].an_desc = slap_schema.si_ad_entryCSN;
3215 csn_anlist[0].an_name = slap_schema.si_ad_entryCSN->ad_cname;
3216 csn_anlist[1].an_desc = slap_schema.si_ad_entryUUID;
3217 csn_anlist[1].an_name = slap_schema.si_ad_entryUUID->ad_cname;
3219 uuid_anlist[0].an_desc = slap_schema.si_ad_entryUUID;
3220 uuid_anlist[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
3226 syncprov_db_destroy(
3231 slap_overinst *on = (slap_overinst *)be->bd_info;
3232 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3235 if ( si->si_logs ) {
3236 sessionlog *sl = si->si_logs;
3237 slog_entry *se = sl->sl_head;
3240 slog_entry *se_next = se->se_next;
3244 if ( sl->sl_mincsn )
3245 ber_bvarray_free( sl->sl_mincsn );
3247 ch_free( sl->sl_sids );
3249 ldap_pvt_thread_mutex_destroy(&si->si_logs->sl_mutex);
3250 ch_free( si->si_logs );
3252 if ( si->si_ctxcsn )
3253 ber_bvarray_free( si->si_ctxcsn );
3255 ch_free( si->si_sids );
3256 ldap_pvt_thread_mutex_destroy( &si->si_resp_mutex );
3257 ldap_pvt_thread_mutex_destroy( &si->si_mods_mutex );
3258 ldap_pvt_thread_mutex_destroy( &si->si_ops_mutex );
3259 ldap_pvt_thread_rdwr_destroy( &si->si_csn_rwlock );
3266 static int syncprov_parseCtrl (
3272 BerElementBuffer berbuf;
3273 BerElement *ber = (BerElement *)&berbuf;
3276 struct berval cookie = BER_BVNULL;
3280 if ( op->o_sync != SLAP_CONTROL_NONE ) {
3281 rs->sr_text = "Sync control specified multiple times";
3282 return LDAP_PROTOCOL_ERROR;
3285 if ( op->o_pagedresults != SLAP_CONTROL_NONE ) {
3286 rs->sr_text = "Sync control specified with pagedResults control";
3287 return LDAP_PROTOCOL_ERROR;
3290 if ( BER_BVISNULL( &ctrl->ldctl_value ) ) {
3291 rs->sr_text = "Sync control value is absent";
3292 return LDAP_PROTOCOL_ERROR;
3295 if ( BER_BVISEMPTY( &ctrl->ldctl_value ) ) {
3296 rs->sr_text = "Sync control value is empty";
3297 return LDAP_PROTOCOL_ERROR;
3300 /* Parse the control value
3301 * syncRequestValue ::= SEQUENCE {
3306 * refreshAndPersist (3)
3308 * cookie syncCookie OPTIONAL
3312 ber_init2( ber, &ctrl->ldctl_value, 0 );
3314 if ( (tag = ber_scanf( ber, "{i" /*}*/, &mode )) == LBER_ERROR ) {
3315 rs->sr_text = "Sync control : mode decoding error";
3316 return LDAP_PROTOCOL_ERROR;
3320 case LDAP_SYNC_REFRESH_ONLY:
3321 mode = SLAP_SYNC_REFRESH;
3323 case LDAP_SYNC_REFRESH_AND_PERSIST:
3324 mode = SLAP_SYNC_REFRESH_AND_PERSIST;
3327 rs->sr_text = "Sync control : unknown update mode";
3328 return LDAP_PROTOCOL_ERROR;
3331 tag = ber_peek_tag( ber, &len );
3333 if ( tag == LDAP_TAG_SYNC_COOKIE ) {
3334 if (( ber_scanf( ber, /*{*/ "m", &cookie )) == LBER_ERROR ) {
3335 rs->sr_text = "Sync control : cookie decoding error";
3336 return LDAP_PROTOCOL_ERROR;
3338 tag = ber_peek_tag( ber, &len );
3340 if ( tag == LDAP_TAG_RELOAD_HINT ) {
3341 if (( ber_scanf( ber, /*{*/ "b", &rhint )) == LBER_ERROR ) {
3342 rs->sr_text = "Sync control : rhint decoding error";
3343 return LDAP_PROTOCOL_ERROR;
3346 if (( ber_scanf( ber, /*{*/ "}")) == LBER_ERROR ) {
3347 rs->sr_text = "Sync control : decoding error";
3348 return LDAP_PROTOCOL_ERROR;
3350 sr = op->o_tmpcalloc( 1, sizeof(struct sync_control), op->o_tmpmemctx );
3351 sr->sr_rhint = rhint;
3352 if (!BER_BVISNULL(&cookie)) {
3353 ber_dupbv_x( &sr->sr_state.octet_str, &cookie, op->o_tmpmemctx );
3354 /* If parse fails, pretend no cookie was sent */
3355 if ( slap_parse_sync_cookie( &sr->sr_state, op->o_tmpmemctx ) ||
3356 sr->sr_state.rid == -1 ) {
3357 if ( sr->sr_state.ctxcsn ) {
3358 ber_bvarray_free_x( sr->sr_state.ctxcsn, op->o_tmpmemctx );
3359 sr->sr_state.ctxcsn = NULL;
3361 sr->sr_state.numcsns = 0;
3365 op->o_controls[slap_cids.sc_LDAPsync] = sr;
3367 op->o_sync = ctrl->ldctl_iscritical
3368 ? SLAP_CONTROL_CRITICAL
3369 : SLAP_CONTROL_NONCRITICAL;
3371 op->o_sync_mode |= mode; /* o_sync_mode shares o_sync */
3373 return LDAP_SUCCESS;
3376 /* This overlay is set up for dynamic loading via moduleload. For static
3377 * configuration, you'll need to arrange for the slap_overinst to be
3378 * initialized and registered by some other function inside slapd.
3381 static slap_overinst syncprov;
3384 syncprov_initialize()
3388 rc = register_supported_control( LDAP_CONTROL_SYNC,
3389 SLAP_CTRL_SEARCH, NULL,
3390 syncprov_parseCtrl, &slap_cids.sc_LDAPsync );
3391 if ( rc != LDAP_SUCCESS ) {
3392 Debug( LDAP_DEBUG_ANY,
3393 "syncprov_init: Failed to register control %d\n", rc, 0, 0 );
3397 syncprov.on_bi.bi_type = "syncprov";
3398 syncprov.on_bi.bi_db_init = syncprov_db_init;
3399 syncprov.on_bi.bi_db_destroy = syncprov_db_destroy;
3400 syncprov.on_bi.bi_db_open = syncprov_db_open;
3401 syncprov.on_bi.bi_db_close = syncprov_db_close;
3403 syncprov.on_bi.bi_op_abandon = syncprov_op_abandon;
3404 syncprov.on_bi.bi_op_cancel = syncprov_op_abandon;
3406 syncprov.on_bi.bi_op_add = syncprov_op_mod;
3407 syncprov.on_bi.bi_op_compare = syncprov_op_compare;
3408 syncprov.on_bi.bi_op_delete = syncprov_op_mod;
3409 syncprov.on_bi.bi_op_modify = syncprov_op_mod;
3410 syncprov.on_bi.bi_op_modrdn = syncprov_op_mod;
3411 syncprov.on_bi.bi_op_search = syncprov_op_search;
3412 syncprov.on_bi.bi_extended = syncprov_op_extended;
3413 syncprov.on_bi.bi_operational = syncprov_operational;
3415 syncprov.on_bi.bi_cf_ocs = spocs;
3417 generic_filter.f_desc = slap_schema.si_ad_objectClass;
3419 rc = config_register_schema( spcfg, spocs );
3420 if ( rc ) return rc;
3422 return overlay_register( &syncprov );
3425 #if SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC
3427 init_module( int argc, char *argv[] )
3429 return syncprov_initialize();
3431 #endif /* SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC */
3433 #endif /* defined(SLAPD_OVER_SYNCPROV) */