2 /* syncprov.c - syncrepl provider */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2004-2017 The OpenLDAP Foundation.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted only as authorized by the OpenLDAP
12 * A copy of this license is available in the file LICENSE in the
13 * top-level directory of the distribution or, alternatively, at
14 * <http://www.OpenLDAP.org/license.html>.
17 * This work was initially developed by Howard Chu for inclusion in
23 #ifdef SLAPD_OVER_SYNCPROV
25 #include <ac/string.h>
35 /* A modify request on a particular entry */
36 typedef struct modinst {
37 struct modinst *mi_next;
41 typedef struct modtarget {
42 struct modinst *mt_mods;
43 struct modinst *mt_tail;
45 ldap_pvt_thread_mutex_t mt_mutex;
48 /* All the info of a psearch result that's shared between
51 typedef struct resinfo {
52 struct syncres *ri_list;
56 struct berval ri_uuid;
58 struct berval ri_cookie;
60 ldap_pvt_thread_mutex_t ri_mutex;
63 /* A queued result of a persistent search */
64 typedef struct syncres {
65 struct syncres *s_next; /* list of results on this psearch queue */
66 struct syncres *s_rilist; /* list of psearches using this result */
71 /* Record of a persistent search */
72 typedef struct syncops {
73 struct syncops *s_next;
74 struct syncprov_info_t *s_si;
75 struct berval s_base; /* ndn of search base */
76 ID s_eid; /* entryID of search base */
77 Operation *s_op; /* search op */
80 struct berval s_filterstr;
81 int s_flags; /* search status */
82 #define PS_IS_REFRESHING 0x01
83 #define PS_IS_DETACHED 0x02
84 #define PS_WROTE_BASE 0x04
85 #define PS_FIND_BASE 0x08
86 #define PS_FIX_FILTER 0x10
87 #define PS_TASK_QUEUED 0x20
89 int s_inuse; /* reference count */
90 struct syncres *s_res;
91 struct syncres *s_restail;
93 ldap_pvt_thread_mutex_t s_mutex;
96 /* A received sync control */
97 typedef struct sync_control {
98 struct sync_cookie sr_state;
102 #if 0 /* moved back to slap.h */
103 #define o_sync o_ctrlflag[slap_cids.sc_LDAPsync]
105 /* o_sync_mode uses data bits of o_sync */
106 #define o_sync_mode o_ctrlflag[slap_cids.sc_LDAPsync]
108 #define SLAP_SYNC_NONE (LDAP_SYNC_NONE<<SLAP_CONTROL_SHIFT)
109 #define SLAP_SYNC_REFRESH (LDAP_SYNC_REFRESH_ONLY<<SLAP_CONTROL_SHIFT)
110 #define SLAP_SYNC_PERSIST (LDAP_SYNC_RESERVED<<SLAP_CONTROL_SHIFT)
111 #define SLAP_SYNC_REFRESH_AND_PERSIST (LDAP_SYNC_REFRESH_AND_PERSIST<<SLAP_CONTROL_SHIFT)
113 /* Record of which searches matched at premodify step */
114 typedef struct syncmatches {
115 struct syncmatches *sm_next;
119 /* Session log data */
120 typedef struct slog_entry {
121 struct slog_entry *se_next;
122 struct berval se_uuid;
123 struct berval se_csn;
128 typedef struct sessionlog {
136 ldap_pvt_thread_mutex_t sl_mutex;
139 /* The main state for this overlay */
140 typedef struct syncprov_info_t {
142 struct berval si_contextdn;
143 BerVarray si_ctxcsn; /* ldapsync context */
146 int si_chkops; /* checkpointing info */
148 int si_numops; /* number of ops since last checkpoint */
149 int si_nopres; /* Skip present phase */
150 int si_usehint; /* use reload hint */
151 int si_active; /* True if there are active mods */
152 int si_dirty; /* True if the context is dirty, i.e changes
153 * have been made without updating the csn. */
154 time_t si_chklast; /* time of last checkpoint */
155 Avlnode *si_mods; /* entries being modified */
157 ldap_pvt_thread_rdwr_t si_csn_rwlock;
158 ldap_pvt_thread_mutex_t si_ops_mutex;
159 ldap_pvt_thread_mutex_t si_mods_mutex;
160 ldap_pvt_thread_mutex_t si_resp_mutex;
163 typedef struct opcookie {
165 syncmatches *smatches;
168 struct berval sdn; /* DN of entry, for deletes */
170 struct berval suuid; /* UUID of entry */
171 struct berval sctxcsn;
172 short osid; /* sid of op csn */
173 short rsid; /* sid of relay */
174 short sreference; /* Is the entry a reference? */
178 typedef struct fbase_cookie {
179 struct berval *fdn; /* DN of a modified entry, for scope testing */
180 syncops *fss; /* persistent search we're testing against */
181 int fbase; /* if TRUE we found the search base and it's still valid */
182 int fscope; /* if TRUE then fdn is within the psearch scope */
185 static AttributeName csn_anlist[3];
186 static AttributeName uuid_anlist[2];
188 /* Build a LDAPsync intermediate state control */
194 int entry_sync_state,
198 struct berval *cookie )
203 BerElementBuffer berbuf;
204 BerElement *ber = (BerElement *)&berbuf;
207 struct berval entryuuid_bv = BER_BVNULL;
209 ber_init2( ber, 0, LBER_USE_DER );
210 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
212 for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
213 AttributeDescription *desc = a->a_desc;
214 if ( desc == slap_schema.si_ad_entryUUID ) {
215 entryuuid_bv = a->a_nvals[0];
220 /* FIXME: what if entryuuid is NULL or empty ? */
222 if ( send_cookie && cookie ) {
223 ber_printf( ber, "{eOON}",
224 entry_sync_state, &entryuuid_bv, cookie );
226 ber_printf( ber, "{eON}",
227 entry_sync_state, &entryuuid_bv );
230 ret = ber_flatten2( ber, &bv, 0 );
232 cp = op->o_tmpalloc( sizeof( LDAPControl ) + bv.bv_len, op->o_tmpmemctx );
233 cp->ldctl_oid = LDAP_CONTROL_SYNC_STATE;
234 cp->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
235 cp->ldctl_value.bv_val = (char *)&cp[1];
236 cp->ldctl_value.bv_len = bv.bv_len;
237 AC_MEMCPY( cp->ldctl_value.bv_val, bv.bv_val, bv.bv_len );
238 ctrls[num_ctrls] = cp;
243 Debug( LDAP_DEBUG_TRACE,
244 "slap_build_sync_ctrl: ber_flatten2 failed (%d)\n",
246 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
253 /* Build a LDAPsync final state control */
261 struct berval *cookie,
265 BerElementBuffer berbuf;
266 BerElement *ber = (BerElement *)&berbuf;
270 ber_init2( ber, NULL, LBER_USE_DER );
271 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
273 ber_printf( ber, "{" );
274 if ( send_cookie && cookie ) {
275 ber_printf( ber, "O", cookie );
277 if ( refreshDeletes == LDAP_SYNC_REFRESH_DELETES ) {
278 ber_printf( ber, "b", refreshDeletes );
280 ber_printf( ber, "N}" );
282 ret = ber_flatten2( ber, &bv, 0 );
284 cp = op->o_tmpalloc( sizeof( LDAPControl ) + bv.bv_len, op->o_tmpmemctx );
285 cp->ldctl_oid = LDAP_CONTROL_SYNC_DONE;
286 cp->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
287 cp->ldctl_value.bv_val = (char *)&cp[1];
288 cp->ldctl_value.bv_len = bv.bv_len;
289 AC_MEMCPY( cp->ldctl_value.bv_val, bv.bv_val, bv.bv_len );
290 ctrls[num_ctrls] = cp;
296 Debug( LDAP_DEBUG_TRACE,
297 "syncprov_done_ctrl: ber_flatten2 failed (%d)\n",
299 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
311 struct berval *cookie,
316 BerElementBuffer berbuf;
317 BerElement *ber = (BerElement *)&berbuf;
318 struct berval rspdata;
322 ber_init2( ber, NULL, LBER_USE_DER );
323 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
327 case LDAP_TAG_SYNC_NEW_COOKIE:
328 ber_printf( ber, "tO", type, cookie );
330 case LDAP_TAG_SYNC_REFRESH_DELETE:
331 case LDAP_TAG_SYNC_REFRESH_PRESENT:
332 ber_printf( ber, "t{", type );
334 ber_printf( ber, "O", cookie );
336 if ( refreshDone == 0 ) {
337 ber_printf( ber, "b", refreshDone );
339 ber_printf( ber, "N}" );
341 case LDAP_TAG_SYNC_ID_SET:
342 ber_printf( ber, "t{", type );
344 ber_printf( ber, "O", cookie );
346 if ( refreshDeletes == 1 ) {
347 ber_printf( ber, "b", refreshDeletes );
349 ber_printf( ber, "[W]", syncUUIDs );
350 ber_printf( ber, "N}" );
353 Debug( LDAP_DEBUG_TRACE,
354 "syncprov_sendinfo: invalid syncinfo type (%d)\n",
360 ret = ber_flatten2( ber, &rspdata, 0 );
363 Debug( LDAP_DEBUG_TRACE,
364 "syncprov_sendinfo: ber_flatten2 failed (%d)\n",
366 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
370 rs->sr_rspoid = LDAP_SYNC_INFO;
371 rs->sr_rspdata = &rspdata;
372 send_ldap_intermediate( op, rs );
373 rs->sr_rspdata = NULL;
379 /* Find a modtarget in an AVL tree */
381 sp_avl_cmp( const void *c1, const void *c2 )
383 const modtarget *m1, *m2;
387 rc = m1->mt_dn.bv_len - m2->mt_dn.bv_len;
390 return ber_bvcmp( &m1->mt_dn, &m2->mt_dn );
393 /* syncprov_findbase:
394 * finds the true DN of the base of a search (with alias dereferencing) and
395 * checks to make sure the base entry doesn't get replaced with a different
396 * entry (e.g., swapping trees via ModDN, or retargeting an alias). If a
397 * change is detected, any persistent search on this base must be terminated /
399 * On the first call, we just save the DN and entryID. On subsequent calls
400 * we compare the DN and entryID with the saved values.
403 findbase_cb( Operation *op, SlapReply *rs )
405 slap_callback *sc = op->o_callback;
407 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
408 fbase_cookie *fc = sc->sc_private;
410 /* If no entryID, we're looking for the first time.
411 * Just store whatever we got.
413 if ( fc->fss->s_eid == NOID ) {
415 fc->fss->s_eid = rs->sr_entry->e_id;
416 ber_dupbv( &fc->fss->s_base, &rs->sr_entry->e_nname );
418 } else if ( rs->sr_entry->e_id == fc->fss->s_eid &&
419 dn_match( &rs->sr_entry->e_nname, &fc->fss->s_base )) {
421 /* OK, the DN is the same and the entryID is the same. */
425 if ( rs->sr_err != LDAP_SUCCESS ) {
426 Debug( LDAP_DEBUG_ANY, "findbase failed! %d\n", rs->sr_err,0,0 );
431 static Filter generic_filter = { LDAP_FILTER_PRESENT, { 0 }, NULL };
432 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
435 syncprov_findbase( Operation *op, fbase_cookie *fc )
437 /* Use basic parameters from syncrepl search, but use
438 * current op's threadctx / tmpmemctx
440 ldap_pvt_thread_mutex_lock( &fc->fss->s_mutex );
441 if ( fc->fss->s_flags & PS_FIND_BASE ) {
442 slap_callback cb = {0};
444 SlapReply frs = { REP_RESULT };
447 fc->fss->s_flags ^= PS_FIND_BASE;
448 ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
450 fop = *fc->fss->s_op;
452 fop.o_bd = fop.o_bd->bd_self;
453 fop.o_hdr = op->o_hdr;
454 fop.o_time = op->o_time;
455 fop.o_tincr = op->o_tincr;
456 fop.o_extra = op->o_extra;
458 cb.sc_response = findbase_cb;
461 fop.o_sync_mode = 0; /* turn off sync mode */
462 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
463 fop.o_callback = &cb;
464 fop.o_tag = LDAP_REQ_SEARCH;
465 fop.ors_scope = LDAP_SCOPE_BASE;
466 fop.ors_limit = NULL;
468 fop.ors_tlimit = SLAP_NO_LIMIT;
469 fop.ors_attrs = slap_anlist_no_attrs;
470 fop.ors_attrsonly = 1;
471 fop.ors_filter = &generic_filter;
472 fop.ors_filterstr = generic_filterstr;
474 rc = fop.o_bd->be_search( &fop, &frs );
476 ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
480 /* After the first call, see if the fdn resides in the scope */
481 if ( fc->fbase == 1 ) {
482 switch ( fc->fss->s_op->ors_scope ) {
483 case LDAP_SCOPE_BASE:
484 fc->fscope = dn_match( fc->fdn, &fc->fss->s_base );
486 case LDAP_SCOPE_ONELEVEL: {
488 dnParent( fc->fdn, &pdn );
489 fc->fscope = dn_match( &pdn, &fc->fss->s_base );
491 case LDAP_SCOPE_SUBTREE:
492 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base );
494 case LDAP_SCOPE_SUBORDINATE:
495 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base ) &&
496 !dn_match( fc->fdn, &fc->fss->s_base );
504 /* If entryID has changed, then the base of this search has
505 * changed. Invalidate the psearch.
507 return LDAP_NO_SUCH_OBJECT;
511 * This function has three different purposes, but they all use a search
512 * that filters on entryCSN so they're combined here.
513 * 1: at startup time, after a contextCSN has been read from the database,
514 * we search for all entries with CSN >= contextCSN in case the contextCSN
515 * was not checkpointed at the previous shutdown.
517 * 2: when the current contextCSN is known and we have a sync cookie, we search
518 * for one entry with CSN = the cookie CSN. If not found, try <= cookie CSN.
519 * If an entry is found, the cookie CSN is valid, otherwise it is stale.
521 * 3: during a refresh phase, we search for all entries with CSN <= the cookie
522 * CSN, and generate Present records for them. We always collect this result
523 * in SyncID sets, even if there's only one match.
525 typedef enum find_csn_t {
532 findmax_cb( Operation *op, SlapReply *rs )
534 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
535 struct berval *maxcsn = op->o_callback->sc_private;
536 Attribute *a = attr_find( rs->sr_entry->e_attrs,
537 slap_schema.si_ad_entryCSN );
539 if ( a && ber_bvcmp( &a->a_vals[0], maxcsn ) > 0 &&
540 slap_parse_csn_sid( &a->a_vals[0] ) == slap_serverID ) {
541 maxcsn->bv_len = a->a_vals[0].bv_len;
542 strcpy( maxcsn->bv_val, a->a_vals[0].bv_val );
549 findcsn_cb( Operation *op, SlapReply *rs )
551 slap_callback *sc = op->o_callback;
553 /* We just want to know that at least one exists, so it's OK if
554 * we exceed the unchecked limit.
556 if ( rs->sr_err == LDAP_ADMINLIMIT_EXCEEDED ||
557 (rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS )) {
558 sc->sc_private = (void *)1;
563 /* Build a list of entryUUIDs for sending in a SyncID set */
567 typedef struct fpres_cookie {
574 findpres_cb( Operation *op, SlapReply *rs )
576 slap_callback *sc = op->o_callback;
577 fpres_cookie *pc = sc->sc_private;
579 int ret = SLAP_CB_CONTINUE;
581 switch ( rs->sr_type ) {
583 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
585 pc->uuids[pc->num].bv_val = pc->last;
586 AC_MEMCPY( pc->uuids[pc->num].bv_val, a->a_nvals[0].bv_val,
587 pc->uuids[pc->num].bv_len );
589 pc->last = pc->uuids[pc->num].bv_val;
590 pc->uuids[pc->num].bv_val = NULL;
593 if ( pc->num != SLAP_SYNCUUID_SET_SIZE )
599 ret = syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET, NULL,
601 pc->uuids[pc->num].bv_val = pc->last;
603 pc->last = pc->uuids[0].bv_val;
613 syncprov_findcsn( Operation *op, find_csn_t mode, struct berval *csn )
615 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
616 syncprov_info_t *si = on->on_bi.bi_private;
618 slap_callback cb = {0};
620 SlapReply frs = { REP_RESULT };
621 char buf[LDAP_PVT_CSNSTR_BUFSIZE + STRLENOF("(entryCSN<=)")];
622 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
623 struct berval maxcsn;
625 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
626 fpres_cookie pcookie;
627 sync_control *srs = NULL;
628 struct slap_limits_set fc_limits;
629 int i, rc = LDAP_SUCCESS, findcsn_retry = 1;
632 if ( mode != FIND_MAXCSN ) {
633 srs = op->o_controls[slap_cids.sc_LDAPsync];
637 fop.o_sync_mode &= SLAP_CONTROL_MASK; /* turn off sync_mode */
638 /* We want pure entries, not referrals */
639 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
642 cf.f_av_desc = slap_schema.si_ad_entryCSN;
643 BER_BVZERO( &cf.f_av_value );
646 fop.o_callback = &cb;
647 fop.ors_limit = NULL;
648 fop.ors_tlimit = SLAP_NO_LIMIT;
649 fop.ors_filter = &cf;
650 fop.ors_filterstr.bv_val = buf;
655 cf.f_choice = LDAP_FILTER_GE;
656 /* If there are multiple CSNs, use the one with our serverID */
657 for ( i=0; i<si->si_numcsns; i++) {
658 if ( slap_serverID == si->si_sids[i] ) {
663 if ( i == si->si_numcsns ) {
664 /* No match: this is multimaster, and none of the content in the DB
665 * originated locally. Treat like no CSN.
667 return LDAP_NO_SUCH_OBJECT;
669 cf.f_av_value = si->si_ctxcsn[maxid];
670 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
671 "(entryCSN>=%s)", cf.f_av_value.bv_val );
672 if ( fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
675 fop.ors_attrsonly = 0;
676 fop.ors_attrs = csn_anlist;
677 fop.ors_slimit = SLAP_NO_LIMIT;
678 cb.sc_private = &maxcsn;
679 cb.sc_response = findmax_cb;
680 strcpy( cbuf, cf.f_av_value.bv_val );
681 maxcsn.bv_val = cbuf;
682 maxcsn.bv_len = cf.f_av_value.bv_len;
685 if ( BER_BVISEMPTY( &cf.f_av_value )) {
686 cf.f_av_value = *csn;
688 fop.o_dn = op->o_bd->be_rootdn;
689 fop.o_ndn = op->o_bd->be_rootndn;
690 fop.o_req_dn = op->o_bd->be_suffix[0];
691 fop.o_req_ndn = op->o_bd->be_nsuffix[0];
692 /* Look for exact match the first time */
693 if ( findcsn_retry ) {
694 cf.f_choice = LDAP_FILTER_EQUALITY;
695 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
696 "(entryCSN=%s)", cf.f_av_value.bv_val );
697 /* On retry, look for <= */
699 cf.f_choice = LDAP_FILTER_LE;
700 fop.ors_limit = &fc_limits;
701 memset( &fc_limits, 0, sizeof( fc_limits ));
702 fc_limits.lms_s_unchecked = 1;
703 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
704 "(entryCSN<=%s)", cf.f_av_value.bv_val );
706 if ( fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
709 fop.ors_attrsonly = 1;
710 fop.ors_attrs = slap_anlist_no_attrs;
712 cb.sc_private = NULL;
713 cb.sc_response = findcsn_cb;
716 fop.ors_filter = op->ors_filter;
717 fop.ors_filterstr = op->ors_filterstr;
718 fop.ors_attrsonly = 0;
719 fop.ors_attrs = uuid_anlist;
720 fop.ors_slimit = SLAP_NO_LIMIT;
721 cb.sc_private = &pcookie;
722 cb.sc_response = findpres_cb;
725 /* preallocate storage for a full set */
726 pcookie.uuids = op->o_tmpalloc( (SLAP_SYNCUUID_SET_SIZE+1) *
727 sizeof(struct berval) + SLAP_SYNCUUID_SET_SIZE * UUID_LEN,
729 pcookie.last = (char *)(pcookie.uuids + SLAP_SYNCUUID_SET_SIZE+1);
730 pcookie.uuids[0].bv_val = pcookie.last;
731 pcookie.uuids[0].bv_len = UUID_LEN;
732 for (i=1; i<SLAP_SYNCUUID_SET_SIZE; i++) {
733 pcookie.uuids[i].bv_val = pcookie.uuids[i-1].bv_val + UUID_LEN;
734 pcookie.uuids[i].bv_len = UUID_LEN;
739 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
740 fop.o_bd->be_search( &fop, &frs );
741 fop.o_bd->bd_info = (BackendInfo *)on;
745 if ( ber_bvcmp( &si->si_ctxcsn[maxid], &maxcsn )) {
747 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
748 assert( !syn->ssyn_validate( syn, &maxcsn ));
750 ber_bvreplace( &si->si_ctxcsn[maxid], &maxcsn );
751 si->si_numops++; /* ensure a checkpoint */
755 /* If matching CSN was not found, invalidate the context. */
756 if ( !cb.sc_private ) {
757 /* If we didn't find an exact match, then try for <= */
758 if ( findcsn_retry ) {
760 rs_reinit( &frs, REP_RESULT );
763 rc = LDAP_NO_SUCH_OBJECT;
767 op->o_tmpfree( pcookie.uuids, op->o_tmpmemctx );
774 static void free_resinfo( syncres *sr )
778 ldap_pvt_thread_mutex_lock( &sr->s_info->ri_mutex );
779 for (st = &sr->s_info->ri_list; *st; st = &(*st)->s_rilist) {
785 if ( !sr->s_info->ri_list )
787 ldap_pvt_thread_mutex_unlock( &sr->s_info->ri_mutex );
789 ldap_pvt_thread_mutex_destroy( &sr->s_info->ri_mutex );
790 if ( sr->s_info->ri_e )
791 entry_free( sr->s_info->ri_e );
792 if ( !BER_BVISNULL( &sr->s_info->ri_cookie ))
793 ch_free( sr->s_info->ri_cookie.bv_val );
794 ch_free( sr->s_info );
802 syncprov_free_syncop( syncops *so, int flags )
804 syncres *sr, *srnext;
805 GroupAssertion *ga, *gnext;
807 if ( flags & FS_LOCK )
808 ldap_pvt_thread_mutex_lock( &so->s_mutex );
809 /* already being freed, or still in use */
810 if ( !so->s_inuse || --so->s_inuse > 0 ) {
811 if ( flags & FS_LOCK )
812 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
815 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
816 if (( flags & FS_UNLINK ) && so->s_si ) {
818 ldap_pvt_thread_mutex_lock( &so->s_si->si_ops_mutex );
819 for ( sop = &so->s_si->si_ops; *sop; sop = &(*sop)->s_next ) {
825 ldap_pvt_thread_mutex_unlock( &so->s_si->si_ops_mutex );
827 if ( so->s_flags & PS_IS_DETACHED ) {
828 filter_free( so->s_op->ors_filter );
829 for ( ga = so->s_op->o_groups; ga; ga=gnext ) {
835 ch_free( so->s_base.bv_val );
836 for ( sr=so->s_res; sr; sr=srnext ) {
841 ldap_pvt_thread_mutex_destroy( &so->s_mutex );
846 /* Send a persistent search response */
848 syncprov_sendresp( Operation *op, resinfo *ri, syncops *so, int mode )
850 SlapReply rs = { REP_SEARCH };
851 struct berval cookie, csns[2];
853 Attribute a_uuid = {0};
855 if ( so->s_op->o_abandon )
856 return SLAPD_ABANDON;
858 rs.sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2, op->o_tmpmemctx );
859 rs.sr_ctrls[1] = NULL;
860 rs.sr_flags = REP_CTRLS_MUSTBEFREED;
861 csns[0] = ri->ri_csn;
862 BER_BVZERO( &csns[1] );
863 slap_compose_sync_cookie( op, &cookie, csns, so->s_rid, slap_serverID ? slap_serverID : -1 );
866 if ( so->s_sid > 0 ) {
867 Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: to=%03x, cookie=%s\n",
868 so->s_sid, cookie.bv_val, 0 );
870 Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: cookie=%s\n",
871 cookie.bv_val, 0, 0 );
875 e_uuid.e_attrs = &a_uuid;
876 a_uuid.a_desc = slap_schema.si_ad_entryUUID;
877 a_uuid.a_nvals = &ri->ri_uuid;
878 rs.sr_err = syncprov_state_ctrl( op, &rs, &e_uuid,
879 mode, rs.sr_ctrls, 0, 1, &cookie );
880 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
882 rs.sr_entry = &e_uuid;
883 if ( mode == LDAP_SYNC_ADD || mode == LDAP_SYNC_MODIFY ) {
885 e_uuid.e_private = NULL;
890 if ( ri->ri_isref && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
891 rs.sr_ref = get_entry_referrals( op, rs.sr_entry );
892 rs.sr_err = send_search_reference( op, &rs );
893 ber_bvarray_free( rs.sr_ref );
897 case LDAP_SYNC_MODIFY:
898 rs.sr_attrs = op->ors_attrs;
899 rs.sr_err = send_search_entry( op, &rs );
901 case LDAP_SYNC_DELETE:
902 e_uuid.e_attrs = NULL;
903 e_uuid.e_name = ri->ri_dn;
904 e_uuid.e_nname = ri->ri_ndn;
905 if ( ri->ri_isref && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
906 struct berval bv = BER_BVNULL;
908 rs.sr_err = send_search_reference( op, &rs );
910 rs.sr_err = send_search_entry( op, &rs );
920 syncprov_qstart( syncops *so );
922 /* Play back queued responses */
924 syncprov_qplay( Operation *op, syncops *so )
930 ldap_pvt_thread_mutex_lock( &so->s_mutex );
932 /* Exit loop with mutex held */
935 so->s_res = sr->s_next;
937 so->s_restail = NULL;
938 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
940 if ( !so->s_op->o_abandon ) {
942 if ( sr->s_mode == LDAP_SYNC_NEW_COOKIE ) {
943 SlapReply rs = { REP_INTERMEDIATE };
945 rc = syncprov_sendinfo( op, &rs, LDAP_TAG_SYNC_NEW_COOKIE,
946 &sr->s_info->ri_cookie, 0, NULL, 0 );
948 rc = syncprov_sendresp( op, sr->s_info, so, sr->s_mode );
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 );
976 /* task for playing back queued responses */
978 syncprov_qtask( void *ctx, void *arg )
981 OperationBuffer opbuf;
988 op->o_hdr = &opbuf.ob_hdr;
989 op->o_controls = opbuf.ob_controls;
990 memset( op->o_controls, 0, sizeof(opbuf.ob_controls) );
991 op->o_sync = SLAP_CONTROL_IGNORED;
993 *op->o_hdr = *so->s_op->o_hdr;
995 op->o_tmpmemctx = slap_sl_mem_create(SLAP_SLAB_SIZE, SLAP_SLAB_STACK, ctx, 1);
996 op->o_tmpmfuncs = &slap_sl_mfuncs;
997 op->o_threadctx = ctx;
999 /* syncprov_qplay expects a fake db */
1000 be = *so->s_op->o_bd;
1001 be.be_flags |= SLAP_DBFLAG_OVERLAY;
1003 LDAP_SLIST_FIRST(&op->o_extra) = NULL;
1004 op->o_callback = NULL;
1006 rc = syncprov_qplay( op, so );
1008 /* if an error occurred, or no responses left, task is no longer queued */
1009 if ( !rc && !so->s_res )
1012 /* decrement use count... */
1013 if ( !syncprov_free_syncop( so, FS_UNLINK )) {
1015 /* if we didn't unlink, and task is no longer queued, clear flag */
1016 so->s_flags ^= PS_TASK_QUEUED;
1017 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
1023 /* Start the task to play back queued psearch responses */
1025 syncprov_qstart( syncops *so )
1027 so->s_flags |= PS_TASK_QUEUED;
1029 ldap_pvt_thread_pool_submit2( &connection_pool,
1030 syncprov_qtask, so, &so->s_pool_cookie );
1033 /* Queue a persistent search response */
1035 syncprov_qresp( opcookie *opc, syncops *so, int mode )
1040 struct berval csn = opc->sctxcsn;
1042 sr = ch_malloc( sizeof( syncres ));
1045 if ( !opc->ssres.s_info ) {
1047 srsize = sizeof( resinfo );
1049 srsize += csn.bv_len + 1;
1053 ri = ch_malloc( srsize );
1054 ri->ri_dn = opc->se->e_name;
1055 ri->ri_ndn = opc->se->e_nname;
1056 a = attr_find( opc->se->e_attrs, slap_schema.si_ad_entryUUID );
1058 ri->ri_uuid = a->a_nvals[0];
1060 ri->ri_uuid.bv_len = 0;
1062 ri->ri_csn.bv_val = (char *)(ri + 1);
1063 ri->ri_csn.bv_len = csn.bv_len;
1064 memcpy( ri->ri_csn.bv_val, csn.bv_val, csn.bv_len );
1065 ri->ri_csn.bv_val[csn.bv_len] = '\0';
1067 ri->ri_csn.bv_val = NULL;
1070 srsize += opc->suuid.bv_len +
1071 opc->sdn.bv_len + 1 + opc->sndn.bv_len + 1;
1072 ri = ch_malloc( srsize );
1073 ri->ri_dn.bv_val = (char *)(ri + 1);
1074 ri->ri_dn.bv_len = opc->sdn.bv_len;
1075 ri->ri_ndn.bv_val = lutil_strcopy( ri->ri_dn.bv_val,
1076 opc->sdn.bv_val ) + 1;
1077 ri->ri_ndn.bv_len = opc->sndn.bv_len;
1078 ri->ri_uuid.bv_val = lutil_strcopy( ri->ri_ndn.bv_val,
1079 opc->sndn.bv_val ) + 1;
1080 ri->ri_uuid.bv_len = opc->suuid.bv_len;
1081 AC_MEMCPY( ri->ri_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1083 ri->ri_csn.bv_val = ri->ri_uuid.bv_val + ri->ri_uuid.bv_len;
1084 memcpy( ri->ri_csn.bv_val, csn.bv_val, csn.bv_len );
1085 ri->ri_csn.bv_val[csn.bv_len] = '\0';
1087 ri->ri_csn.bv_val = NULL;
1090 ri->ri_list = &opc->ssres;
1092 ri->ri_csn.bv_len = csn.bv_len;
1093 ri->ri_isref = opc->sreference;
1094 BER_BVZERO( &ri->ri_cookie );
1095 ldap_pvt_thread_mutex_init( &ri->ri_mutex );
1097 opc->ssres.s_info = ri;
1099 ri = opc->ssres.s_info;
1101 ldap_pvt_thread_mutex_lock( &ri->ri_mutex );
1102 sr->s_rilist = ri->ri_list;
1104 if ( mode == LDAP_SYNC_NEW_COOKIE && BER_BVISNULL( &ri->ri_cookie )) {
1105 syncprov_info_t *si = opc->son->on_bi.bi_private;
1107 slap_compose_sync_cookie( NULL, &ri->ri_cookie, si->si_ctxcsn,
1108 so->s_rid, slap_serverID ? slap_serverID : -1);
1110 ldap_pvt_thread_mutex_unlock( &ri->ri_mutex );
1112 ldap_pvt_thread_mutex_lock( &so->s_mutex );
1116 so->s_restail->s_next = sr;
1120 /* If the base of the psearch was modified, check it next time round */
1121 if ( so->s_flags & PS_WROTE_BASE ) {
1122 so->s_flags ^= PS_WROTE_BASE;
1123 so->s_flags |= PS_FIND_BASE;
1125 if (( so->s_flags & (PS_IS_DETACHED|PS_TASK_QUEUED)) == PS_IS_DETACHED ) {
1126 syncprov_qstart( so );
1128 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
1129 return LDAP_SUCCESS;
1133 syncprov_drop_psearch( syncops *so, int lock )
1135 if ( so->s_flags & PS_IS_DETACHED ) {
1137 ldap_pvt_thread_mutex_lock( &so->s_op->o_conn->c_mutex );
1138 so->s_op->o_conn->c_n_ops_executing--;
1139 so->s_op->o_conn->c_n_ops_completed++;
1140 LDAP_STAILQ_REMOVE( &so->s_op->o_conn->c_ops, so->s_op, Operation,
1143 ldap_pvt_thread_mutex_unlock( &so->s_op->o_conn->c_mutex );
1145 return syncprov_free_syncop( so, FS_LOCK );
1149 syncprov_ab_cleanup( Operation *op, SlapReply *rs )
1151 slap_callback *sc = op->o_callback;
1152 op->o_callback = sc->sc_next;
1153 syncprov_drop_psearch( sc->sc_private, 0 );
1154 op->o_tmpfree( sc, op->o_tmpmemctx );
1159 syncprov_op_abandon( Operation *op, SlapReply *rs )
1161 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1162 syncprov_info_t *si = on->on_bi.bi_private;
1165 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1166 for ( sop=&si->si_ops; (so = *sop); sop = &(*sop)->s_next ) {
1167 if ( so->s_op->o_connid == op->o_connid &&
1168 so->s_op->o_msgid == op->orn_msgid ) {
1169 so->s_op->o_abandon = 1;
1174 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1176 /* Is this really a Cancel exop? */
1177 if ( op->o_tag != LDAP_REQ_ABANDON ) {
1178 so->s_op->o_cancel = SLAP_CANCEL_ACK;
1179 rs->sr_err = LDAP_CANCELLED;
1180 send_ldap_result( so->s_op, rs );
1181 if ( so->s_flags & PS_IS_DETACHED ) {
1183 cb = op->o_tmpcalloc( 1, sizeof(slap_callback), op->o_tmpmemctx );
1184 cb->sc_cleanup = syncprov_ab_cleanup;
1185 cb->sc_next = op->o_callback;
1186 cb->sc_private = so;
1187 op->o_callback = cb;
1188 return SLAP_CB_CONTINUE;
1191 syncprov_drop_psearch( so, 0 );
1193 return SLAP_CB_CONTINUE;
1196 /* Find which persistent searches are affected by this operation */
1198 syncprov_matchops( Operation *op, opcookie *opc, int saveit )
1200 slap_overinst *on = opc->son;
1201 syncprov_info_t *si = on->on_bi.bi_private;
1208 struct berval newdn;
1210 BackendDB *b0 = op->o_bd, db;
1212 fc.fdn = &op->o_req_ndn;
1213 /* compute new DN */
1214 if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1216 if ( op->orr_nnewSup ) pdn = *op->orr_nnewSup;
1217 else dnParent( fc.fdn, &pdn );
1218 build_new_dn( &newdn, &pdn, &op->orr_nnewrdn, op->o_tmpmemctx );
1222 if ( op->o_tag != LDAP_REQ_ADD ) {
1223 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1227 rc = overlay_entry_get_ov( op, fc.fdn, NULL, NULL, 0, &e, on );
1228 /* If we're sending responses now, make a copy and unlock the DB */
1229 if ( e && !saveit ) {
1231 opc->se = entry_dup( e );
1232 overlay_entry_release_ov( op, e, 0, on );
1243 opc->se = entry_dup( e );
1248 if ( saveit || op->o_tag == LDAP_REQ_ADD ) {
1249 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1250 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1251 opc->sreference = is_entry_referral( e );
1252 a = attr_find( e->e_attrs, slap_schema.si_ad_entryUUID );
1254 ber_dupbv_x( &opc->suuid, &a->a_nvals[0], op->o_tmpmemctx );
1255 } else if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1256 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1257 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1258 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1259 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1262 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1263 for (pss = &si->si_ops; *pss; pss = gonext ? &(*pss)->s_next : pss)
1269 syncops *snext, *ss = *pss;
1272 if ( ss->s_op->o_abandon )
1275 /* Don't send ops back to the originator */
1276 if ( opc->osid > 0 && opc->osid == ss->s_sid ) {
1277 Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping original sid %03x\n",
1282 /* Don't send ops back to the messenger */
1283 if ( opc->rsid > 0 && opc->rsid == ss->s_sid ) {
1284 Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping relayed sid %03x\n",
1294 /* If the base of the search is missing, signal a refresh */
1295 rc = syncprov_findbase( op, &fc );
1296 if ( rc != LDAP_SUCCESS ) {
1297 SlapReply rs = {REP_RESULT};
1298 send_ldap_error( ss->s_op, &rs, LDAP_SYNC_REFRESH_REQUIRED,
1299 "search base has changed" );
1301 if ( syncprov_drop_psearch( ss, 1 ) )
1307 /* If we're sending results now, look for this op in old matches */
1311 /* Did we modify the search base? */
1312 if ( dn_match( &op->o_req_ndn, &ss->s_base )) {
1313 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1314 ss->s_flags |= PS_WROTE_BASE;
1315 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1318 for ( sm=opc->smatches, old=(syncmatches *)&opc->smatches; sm;
1319 old=sm, sm=sm->sm_next ) {
1320 if ( sm->sm_op == ss ) {
1322 old->sm_next = sm->sm_next;
1323 op->o_tmpfree( sm, op->o_tmpmemctx );
1330 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1333 oh.oh_conn = ss->s_op->o_conn;
1334 oh.oh_connid = ss->s_op->o_connid;
1335 op2.o_bd = op->o_bd->bd_self;
1337 op2.o_extra = op->o_extra;
1338 op2.o_callback = NULL;
1339 if (ss->s_flags & PS_FIX_FILTER) {
1340 /* Skip the AND/GE clause that we stuck on in front. We
1341 would lose deletes/mods that happen during the refresh
1342 phase otherwise (ITS#6555) */
1343 op2.ors_filter = ss->s_op->ors_filter->f_and->f_next;
1345 rc = test_filter( &op2, e, op2.ors_filter );
1346 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1349 Debug( LDAP_DEBUG_TRACE, "syncprov_matchops: sid %03x fscope %d rc %d\n",
1350 ss->s_sid, fc.fscope, rc );
1352 /* check if current o_req_dn is in scope and matches filter */
1353 if ( fc.fscope && rc == LDAP_COMPARE_TRUE ) {
1355 sm = op->o_tmpalloc( sizeof(syncmatches), op->o_tmpmemctx );
1356 sm->sm_next = opc->smatches;
1358 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1360 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1363 /* if found send UPDATE else send ADD */
1364 syncprov_qresp( opc, ss,
1365 found ? LDAP_SYNC_MODIFY : LDAP_SYNC_ADD );
1367 } else if ( !saveit && found ) {
1369 syncprov_qresp( opc, ss, LDAP_SYNC_DELETE );
1370 } else if ( !saveit ) {
1371 syncprov_qresp( opc, ss, LDAP_SYNC_NEW_COOKIE );
1373 if ( !saveit && found ) {
1374 /* Decrement s_inuse, was incremented when called
1375 * with saveit == TRUE
1378 if ( syncprov_free_syncop( ss, FS_LOCK ) ) {
1384 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1386 if ( op->o_tag != LDAP_REQ_ADD && e ) {
1387 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1391 overlay_entry_release_ov( op, e, 0, on );
1395 if ( opc->ssres.s_info )
1396 free_resinfo( &opc->ssres );
1398 entry_free( opc->se );
1401 op->o_tmpfree( fc.fdn->bv_val, op->o_tmpmemctx );
1407 syncprov_op_cleanup( Operation *op, SlapReply *rs )
1409 slap_callback *cb = op->o_callback;
1410 opcookie *opc = cb->sc_private;
1411 slap_overinst *on = opc->son;
1412 syncprov_info_t *si = on->on_bi.bi_private;
1413 syncmatches *sm, *snext;
1416 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1417 if ( si->si_active )
1419 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1421 for (sm = opc->smatches; sm; sm=snext) {
1422 snext = sm->sm_next;
1423 syncprov_free_syncop( sm->sm_op, FS_LOCK|FS_UNLINK );
1424 op->o_tmpfree( sm, op->o_tmpmemctx );
1427 /* Remove op from lock table */
1430 modinst *mi = (modinst *)(opc+1), **m2;
1431 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1432 for (m2 = &mt->mt_mods; ; m2 = &(*m2)->mi_next) {
1435 if ( mt->mt_tail == mi )
1436 mt->mt_tail = ( m2 == &mt->mt_mods ) ? NULL : (modinst *)m2;
1440 /* If there are more, promote the next one */
1441 if ( mt->mt_mods ) {
1442 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1444 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1445 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1446 avl_delete( &si->si_mods, mt, sp_avl_cmp );
1447 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1448 ldap_pvt_thread_mutex_destroy( &mt->mt_mutex );
1449 ch_free( mt->mt_dn.bv_val );
1453 if ( !BER_BVISNULL( &opc->suuid ))
1454 op->o_tmpfree( opc->suuid.bv_val, op->o_tmpmemctx );
1455 if ( !BER_BVISNULL( &opc->sndn ))
1456 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1457 if ( !BER_BVISNULL( &opc->sdn ))
1458 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1459 op->o_callback = cb->sc_next;
1460 op->o_tmpfree(cb, op->o_tmpmemctx);
1466 syncprov_checkpoint( Operation *op, slap_overinst *on )
1468 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
1471 SlapReply rsm = {REP_RESULT};
1472 slap_callback cb = {0};
1477 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1480 for ( i=0; i<si->si_numcsns; i++ ) {
1481 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1484 mod.sml_numvals = si->si_numcsns;
1485 mod.sml_values = si->si_ctxcsn;
1486 mod.sml_nvalues = NULL;
1487 mod.sml_desc = slap_schema.si_ad_contextCSN;
1488 mod.sml_op = LDAP_MOD_REPLACE;
1489 mod.sml_flags = SLAP_MOD_INTERNAL;
1490 mod.sml_next = NULL;
1492 cb.sc_response = slap_null_cb;
1494 opm.o_tag = LDAP_REQ_MODIFY;
1495 opm.o_callback = &cb;
1496 opm.orm_modlist = &mod;
1497 opm.orm_no_opattrs = 1;
1498 if ( SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1499 be = *on->on_info->oi_origdb;
1502 opm.o_req_dn = si->si_contextdn;
1503 opm.o_req_ndn = si->si_contextdn;
1504 bi = opm.o_bd->bd_info;
1505 opm.o_bd->bd_info = on->on_info->oi_orig;
1506 opm.o_managedsait = SLAP_CONTROL_NONCRITICAL;
1507 opm.o_no_schema_check = 1;
1509 opm.o_bd->be_modify( &opm, &rsm );
1511 if ( rsm.sr_err == LDAP_NO_SUCH_OBJECT &&
1512 SLAP_SYNC_SUBENTRY( opm.o_bd )) {
1514 char txtbuf[SLAP_TEXT_BUFLEN];
1515 size_t textlen = sizeof txtbuf;
1516 Entry *e = slap_create_context_csn_entry( opm.o_bd, NULL );
1517 rs_reinit( &rsm, REP_RESULT );
1518 slap_mods2entry( &mod, &e, 0, 1, &text, txtbuf, textlen);
1520 opm.o_bd->be_add( &opm, &rsm );
1521 if ( e == opm.ora_e )
1522 be_entry_release_w( &opm, opm.ora_e );
1524 opm.o_bd->bd_info = bi;
1526 if ( mod.sml_next != NULL ) {
1527 slap_mods_free( mod.sml_next, 1 );
1530 for ( i=0; i<si->si_numcsns; i++ ) {
1531 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1537 syncprov_add_slog( Operation *op )
1539 opcookie *opc = op->o_callback->sc_private;
1540 slap_overinst *on = opc->son;
1541 syncprov_info_t *si = on->on_bi.bi_private;
1547 if ( BER_BVISEMPTY( &op->o_csn ) ) {
1548 /* During the syncrepl refresh phase we can receive operations
1549 * without a csn. We cannot reliably determine the consumers
1550 * state with respect to such operations, so we ignore them and
1551 * wipe out anything in the log if we see them.
1553 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1554 while ( se = sl->sl_head ) {
1555 sl->sl_head = se->se_next;
1560 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1564 /* Allocate a record. UUIDs are not NUL-terminated. */
1565 se = ch_malloc( sizeof( slog_entry ) + opc->suuid.bv_len +
1566 op->o_csn.bv_len + 1 );
1568 se->se_tag = op->o_tag;
1570 se->se_uuid.bv_val = (char *)(&se[1]);
1571 AC_MEMCPY( se->se_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1572 se->se_uuid.bv_len = opc->suuid.bv_len;
1574 se->se_csn.bv_val = se->se_uuid.bv_val + opc->suuid.bv_len;
1575 AC_MEMCPY( se->se_csn.bv_val, op->o_csn.bv_val, op->o_csn.bv_len );
1576 se->se_csn.bv_val[op->o_csn.bv_len] = '\0';
1577 se->se_csn.bv_len = op->o_csn.bv_len;
1578 se->se_sid = slap_parse_csn_sid( &se->se_csn );
1580 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1581 if ( sl->sl_head ) {
1582 /* Keep the list in csn order. */
1583 if ( ber_bvcmp( &sl->sl_tail->se_csn, &se->se_csn ) <= 0 ) {
1584 sl->sl_tail->se_next = se;
1589 for ( sep = &sl->sl_head; *sep; sep = &(*sep)->se_next ) {
1590 if ( ber_bvcmp( &se->se_csn, &(*sep)->se_csn ) < 0 ) {
1600 if ( !sl->sl_mincsn ) {
1602 sl->sl_mincsn = ch_malloc( 2*sizeof( struct berval ));
1603 sl->sl_sids = ch_malloc( sizeof( int ));
1604 sl->sl_sids[0] = se->se_sid;
1605 ber_dupbv( sl->sl_mincsn, &se->se_csn );
1606 BER_BVZERO( &sl->sl_mincsn[1] );
1610 while ( sl->sl_num > sl->sl_size ) {
1613 sl->sl_head = se->se_next;
1614 for ( i=0; i<sl->sl_numcsns; i++ )
1615 if ( sl->sl_sids[i] >= se->se_sid )
1617 if ( i == sl->sl_numcsns || sl->sl_sids[i] != se->se_sid ) {
1618 slap_insert_csn_sids( (struct sync_cookie *)sl,
1619 i, se->se_sid, &se->se_csn );
1621 ber_bvreplace( &sl->sl_mincsn[i], &se->se_csn );
1626 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1630 /* Just set a flag if we found the matching entry */
1632 playlog_cb( Operation *op, SlapReply *rs )
1634 if ( rs->sr_type == REP_SEARCH ) {
1635 op->o_callback->sc_private = (void *)1;
1640 /* enter with sl->sl_mutex locked, release before returning */
1642 syncprov_playlog( Operation *op, SlapReply *rs, sessionlog *sl,
1643 sync_control *srs, BerVarray ctxcsn, int numcsns, int *sids )
1645 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1647 int i, j, ndel, num, nmods, mmods;
1648 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
1650 struct berval delcsn[2];
1652 if ( !sl->sl_num ) {
1653 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1661 uuids = op->o_tmpalloc( (num+1) * sizeof( struct berval ) +
1662 num * UUID_LEN, op->o_tmpmemctx );
1663 uuids[0].bv_val = (char *)(uuids + num + 1);
1665 delcsn[0].bv_len = 0;
1666 delcsn[0].bv_val = cbuf;
1667 BER_BVZERO(&delcsn[1]);
1669 /* Make a copy of the relevant UUIDs. Put the Deletes up front
1670 * and everything else at the end. Do this first so we can
1671 * unlock the list mutex.
1673 Debug( LDAP_DEBUG_SYNC, "srs csn %s\n",
1674 srs->sr_state.ctxcsn[0].bv_val, 0, 0 );
1675 for ( se=sl->sl_head; se; se=se->se_next ) {
1677 Debug( LDAP_DEBUG_SYNC, "log csn %s\n", se->se_csn.bv_val, 0, 0 );
1679 for ( k=0; k<srs->sr_state.numcsns; k++ ) {
1680 if ( se->se_sid == srs->sr_state.sids[k] ) {
1681 ndel = ber_bvcmp( &se->se_csn, &srs->sr_state.ctxcsn[k] );
1686 Debug( LDAP_DEBUG_SYNC, "cmp %d, too old\n", ndel, 0, 0 );
1690 for ( k=0; k<numcsns; k++ ) {
1691 if ( se->se_sid == sids[k] ) {
1692 ndel = ber_bvcmp( &se->se_csn, &ctxcsn[k] );
1697 Debug( LDAP_DEBUG_SYNC, "cmp %d, too new\n", ndel, 0, 0 );
1700 if ( se->se_tag == LDAP_REQ_DELETE ) {
1703 AC_MEMCPY( cbuf, se->se_csn.bv_val, se->se_csn.bv_len );
1704 delcsn[0].bv_len = se->se_csn.bv_len;
1705 delcsn[0].bv_val[delcsn[0].bv_len] = '\0';
1707 if ( se->se_tag == LDAP_REQ_ADD )
1712 uuids[j].bv_val = uuids[0].bv_val + (j * UUID_LEN);
1713 AC_MEMCPY(uuids[j].bv_val, se->se_uuid.bv_val, UUID_LEN);
1714 uuids[j].bv_len = UUID_LEN;
1716 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1720 /* Zero out unused slots */
1721 for ( i=ndel; i < num - nmods; i++ )
1722 uuids[i].bv_len = 0;
1724 /* Mods must be validated to see if they belong in this delete set.
1728 /* Strip any duplicates */
1729 for ( i=0; i<nmods; i++ ) {
1730 for ( j=0; j<ndel; j++ ) {
1731 if ( bvmatch( &uuids[j], &uuids[num - 1 - i] )) {
1732 uuids[num - 1 - i].bv_len = 0;
1737 if ( uuids[num - 1 - i].bv_len == 0 ) continue;
1738 for ( j=0; j<i; j++ ) {
1739 if ( bvmatch( &uuids[num - 1 - j], &uuids[num - 1 - i] )) {
1740 uuids[num - 1 - i].bv_len = 0;
1751 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
1752 slap_callback cb = {0};
1756 fop.o_sync_mode = 0;
1757 fop.o_callback = &cb;
1758 fop.ors_limit = NULL;
1759 fop.ors_tlimit = SLAP_NO_LIMIT;
1760 fop.ors_attrs = slap_anlist_all_attributes;
1761 fop.ors_attrsonly = 0;
1762 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
1764 af.f_choice = LDAP_FILTER_AND;
1767 mf.f_choice = LDAP_FILTER_EQUALITY;
1769 mf.f_av_desc = slap_schema.si_ad_entryUUID;
1770 mf.f_next = fop.ors_filter;
1772 fop.ors_filter = ⁡
1774 cb.sc_response = playlog_cb;
1775 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
1777 for ( i=ndel; i<num; i++ ) {
1778 if ( uuids[i].bv_len != 0 ) {
1779 SlapReply frs = { REP_RESULT };
1781 mf.f_av_value = uuids[i];
1782 cb.sc_private = NULL;
1784 rc = fop.o_bd->be_search( &fop, &frs );
1786 /* If entry was not found, add to delete list */
1787 if ( !cb.sc_private ) {
1788 uuids[ndel++] = uuids[i];
1792 fop.o_bd->bd_info = (BackendInfo *)on;
1795 struct berval cookie;
1797 if ( delcsn[0].bv_len ) {
1798 slap_compose_sync_cookie( op, &cookie, delcsn, srs->sr_state.rid,
1799 slap_serverID ? slap_serverID : -1 );
1801 Debug( LDAP_DEBUG_SYNC, "syncprov_playlog: cookie=%s\n", cookie.bv_val, 0, 0 );
1804 uuids[ndel].bv_val = NULL;
1805 syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET,
1806 delcsn[0].bv_len ? &cookie : NULL, 0, uuids, 1 );
1807 if ( delcsn[0].bv_len ) {
1808 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
1811 op->o_tmpfree( uuids, op->o_tmpmemctx );
1815 syncprov_op_response( Operation *op, SlapReply *rs )
1817 opcookie *opc = op->o_callback->sc_private;
1818 slap_overinst *on = opc->son;
1819 syncprov_info_t *si = on->on_bi.bi_private;
1822 if ( rs->sr_err == LDAP_SUCCESS )
1824 struct berval maxcsn;
1825 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
1826 int do_check = 0, have_psearches, foundit, csn_changed = 0;
1828 ldap_pvt_thread_mutex_lock( &si->si_resp_mutex );
1830 /* Update our context CSN */
1832 maxcsn.bv_val = cbuf;
1833 maxcsn.bv_len = sizeof(cbuf);
1834 ldap_pvt_thread_rdwr_wlock( &si->si_csn_rwlock );
1836 slap_get_commit_csn( op, &maxcsn, &foundit );
1837 if ( BER_BVISEMPTY( &maxcsn ) && SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1838 /* syncrepl queues the CSN values in the db where
1839 * it is configured , not where the changes are made.
1840 * So look for a value in the glue db if we didn't
1841 * find any in this db.
1843 BackendDB *be = op->o_bd;
1844 op->o_bd = select_backend( &be->be_nsuffix[0], 1);
1845 maxcsn.bv_val = cbuf;
1846 maxcsn.bv_len = sizeof(cbuf);
1847 slap_get_commit_csn( op, &maxcsn, &foundit );
1850 if ( !BER_BVISEMPTY( &maxcsn ) ) {
1853 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1854 assert( !syn->ssyn_validate( syn, &maxcsn ));
1856 sid = slap_parse_csn_sid( &maxcsn );
1857 for ( i=0; i<si->si_numcsns; i++ ) {
1858 if ( sid < si->si_sids[i] )
1860 if ( sid == si->si_sids[i] ) {
1861 if ( ber_bvcmp( &maxcsn, &si->si_ctxcsn[i] ) > 0 ) {
1862 ber_bvreplace( &si->si_ctxcsn[i], &maxcsn );
1868 /* It's a new SID for us */
1869 if ( i == si->si_numcsns || sid != si->si_sids[i] ) {
1870 slap_insert_csn_sids((struct sync_cookie *)&(si->si_ctxcsn),
1876 /* Don't do any processing for consumer contextCSN updates */
1877 if ( op->o_dont_replicate ) {
1878 if ( op->o_tag == LDAP_REQ_MODIFY &&
1879 op->orm_modlist->sml_op == LDAP_MOD_REPLACE &&
1880 op->orm_modlist->sml_desc == slap_schema.si_ad_contextCSN ) {
1881 /* Catch contextCSN updates from syncrepl. We have to look at
1882 * all the attribute values, as there may be more than one csn
1883 * that changed, and only one can be passed in the csn queue.
1885 Modifications *mod = op->orm_modlist;
1889 for ( i=0; i<mod->sml_numvals; i++ ) {
1890 sid = slap_parse_csn_sid( &mod->sml_values[i] );
1891 for ( j=0; j<si->si_numcsns; j++ ) {
1892 if ( sid < si->si_sids[j] )
1894 if ( sid == si->si_sids[j] ) {
1895 if ( ber_bvcmp( &mod->sml_values[i], &si->si_ctxcsn[j] ) > 0 ) {
1896 ber_bvreplace( &si->si_ctxcsn[j], &mod->sml_values[i] );
1903 if ( j == si->si_numcsns || sid != si->si_sids[j] ) {
1904 slap_insert_csn_sids( (struct sync_cookie *)&si->si_ctxcsn,
1905 j, sid, &mod->sml_values[i] );
1911 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1913 if ( csn_changed ) {
1915 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1916 for ( ss = si->si_ops; ss; ss = ss->s_next ) {
1917 if ( ss->s_op->o_abandon )
1919 /* Send the updated csn to all syncrepl consumers,
1920 * including the server from which it originated.
1921 * The syncrepl consumer and syncprov provider on
1922 * the originating server may be configured to store
1923 * their csn values in different entries.
1925 syncprov_qresp( opc, ss, LDAP_SYNC_NEW_COOKIE );
1927 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1930 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1939 if ( si->si_chkops || si->si_chktime ) {
1940 /* Never checkpoint adding the context entry,
1943 if ( op->o_tag != LDAP_REQ_ADD ||
1944 !dn_match( &op->o_req_ndn, &si->si_contextdn )) {
1945 if ( si->si_chkops && si->si_numops >= si->si_chkops ) {
1949 if ( si->si_chktime &&
1950 (op->o_time - si->si_chklast >= si->si_chktime )) {
1951 if ( si->si_chklast ) {
1953 si->si_chklast = op->o_time;
1960 si->si_dirty = !csn_changed;
1961 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1964 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1965 syncprov_checkpoint( op, on );
1966 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1969 /* only update consumer ctx if this is a newer csn */
1970 if ( csn_changed ) {
1971 opc->sctxcsn = maxcsn;
1974 /* Handle any persistent searches */
1975 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1976 have_psearches = ( si->si_ops != NULL );
1977 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1978 if ( have_psearches ) {
1981 case LDAP_REQ_MODIFY:
1982 case LDAP_REQ_MODRDN:
1983 case LDAP_REQ_EXTENDED:
1984 syncprov_matchops( op, opc, 0 );
1986 case LDAP_REQ_DELETE:
1987 /* for each match in opc->smatches:
1990 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1991 if ( sm->sm_op->s_op->o_abandon )
1993 syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_DELETE );
1995 if ( opc->ssres.s_info )
1996 free_resinfo( &opc->ssres );
2001 /* Add any log records */
2002 if ( si->si_logs ) {
2003 syncprov_add_slog( op );
2005 leave: ldap_pvt_thread_mutex_unlock( &si->si_resp_mutex );
2007 return SLAP_CB_CONTINUE;
2010 /* We don't use a subentry to store the context CSN any more.
2011 * We expose the current context CSN as an operational attribute
2012 * of the suffix entry.
2015 syncprov_op_compare( Operation *op, SlapReply *rs )
2017 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2018 syncprov_info_t *si = on->on_bi.bi_private;
2019 int rc = SLAP_CB_CONTINUE;
2021 if ( dn_match( &op->o_req_ndn, &si->si_contextdn ) &&
2022 op->oq_compare.rs_ava->aa_desc == slap_schema.si_ad_contextCSN )
2027 e.e_name = si->si_contextdn;
2028 e.e_nname = si->si_contextdn;
2031 a.a_desc = slap_schema.si_ad_contextCSN;
2033 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2035 a.a_vals = si->si_ctxcsn;
2036 a.a_nvals = a.a_vals;
2037 a.a_numvals = si->si_numcsns;
2039 rs->sr_err = access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc,
2040 &op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL );
2041 if ( ! rs->sr_err ) {
2042 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
2043 goto return_results;
2046 if ( get_assert( op ) &&
2047 ( test_filter( op, &e, get_assertion( op ) ) != LDAP_COMPARE_TRUE ) )
2049 rs->sr_err = LDAP_ASSERTION_FAILED;
2050 goto return_results;
2054 rs->sr_err = LDAP_COMPARE_FALSE;
2056 if ( attr_valfind( &a,
2057 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
2058 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
2059 &op->oq_compare.rs_ava->aa_value, NULL, op->o_tmpmemctx ) == 0 )
2061 rs->sr_err = LDAP_COMPARE_TRUE;
2066 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2068 send_ldap_result( op, rs );
2070 if( rs->sr_err == LDAP_COMPARE_FALSE || rs->sr_err == LDAP_COMPARE_TRUE ) {
2071 rs->sr_err = LDAP_SUCCESS;
2080 syncprov_op_mod( Operation *op, SlapReply *rs )
2082 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2083 syncprov_info_t *si = on->on_bi.bi_private;
2086 int have_psearches, cbsize;
2088 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2089 have_psearches = ( si->si_ops != NULL );
2091 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2093 cbsize = sizeof(slap_callback) + sizeof(opcookie) +
2094 (have_psearches ? sizeof(modinst) : 0 );
2096 cb = op->o_tmpcalloc(1, cbsize, op->o_tmpmemctx);
2097 opc = (opcookie *)(cb+1);
2099 cb->sc_response = syncprov_op_response;
2100 cb->sc_cleanup = syncprov_op_cleanup;
2101 cb->sc_private = opc;
2102 cb->sc_next = op->o_callback;
2103 op->o_callback = cb;
2107 if ( op->o_csn.bv_val ) {
2108 opc->osid = slap_parse_csn_sid( &op->o_csn );
2110 if ( op->o_controls ) {
2111 struct sync_cookie *scook =
2112 op->o_controls[slap_cids.sc_LDAPsync];
2114 opc->rsid = scook->sid;
2117 if ( op->o_dont_replicate )
2118 return SLAP_CB_CONTINUE;
2120 /* If there are active persistent searches, lock this operation.
2121 * See seqmod.c for the locking logic on its own.
2123 if ( have_psearches ) {
2124 modtarget *mt, mtdummy;
2127 mi = (modinst *)(opc+1);
2130 /* See if we're already modifying this entry... */
2131 mtdummy.mt_dn = op->o_req_ndn;
2133 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
2134 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
2136 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
2137 if ( mt->mt_mods == NULL ) {
2138 /* Cannot reuse this mt, as another thread is about
2139 * to release it in syncprov_op_cleanup. Wait for them
2140 * to finish; our own insert is required to succeed.
2142 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2143 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
2144 ldap_pvt_thread_yield();
2149 mt->mt_tail->mi_next = mi;
2151 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
2152 /* wait for this op to get to head of list */
2153 while ( mt->mt_mods != mi ) {
2155 /* don't wait on other mods from the same thread */
2156 for ( m2 = mt->mt_mods; m2; m2 = m2->mi_next ) {
2157 if ( m2->mi_op->o_threadctx == op->o_threadctx ) {
2164 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2165 /* FIXME: if dynamic config can delete overlays or
2166 * databases we'll have to check for cleanup here.
2167 * Currently it's not an issue because there are
2168 * no dynamic config deletes...
2170 if ( slapd_shutdown )
2171 return SLAPD_ABANDON;
2173 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
2174 ldap_pvt_thread_yield();
2175 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
2177 /* clean up if the caller is giving up */
2178 if ( op->o_abandon ) {
2181 for (m2 = &mt->mt_mods; ; m2 = &(*m2)->mi_next) {
2184 if ( mt->mt_tail == mi )
2185 mt->mt_tail = ( m2 == &mt->mt_mods ) ? NULL : (modinst *)m2;
2189 for (sc = &op->o_callback; ; sc = &(*sc)->sc_next) {
2195 op->o_tmpfree( cb, op->o_tmpmemctx );
2196 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2197 return SLAPD_ABANDON;
2200 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2202 /* Record that we're modifying this entry now */
2203 mt = ch_malloc( sizeof(modtarget) );
2206 ber_dupbv( &mt->mt_dn, &mi->mi_op->o_req_ndn );
2207 ldap_pvt_thread_mutex_init( &mt->mt_mutex );
2208 avl_insert( &si->si_mods, mt, sp_avl_cmp, avl_dup_error );
2209 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
2214 if (( have_psearches || si->si_logs ) && op->o_tag != LDAP_REQ_ADD )
2215 syncprov_matchops( op, opc, 1 );
2217 return SLAP_CB_CONTINUE;
2221 syncprov_op_extended( Operation *op, SlapReply *rs )
2223 if ( exop_is_write( op ))
2224 return syncprov_op_mod( op, rs );
2226 return SLAP_CB_CONTINUE;
2229 typedef struct searchstate {
2230 slap_overinst *ss_on;
2232 BerVarray ss_ctxcsn;
2235 #define SS_PRESENT 0x01
2236 #define SS_CHANGED 0x02
2240 typedef struct SyncOperationBuffer {
2244 AttributeName sob_extra; /* not always present */
2245 /* Further data allocated here */
2246 } SyncOperationBuffer;
2249 syncprov_detach_op( Operation *op, syncops *so, slap_overinst *on )
2251 SyncOperationBuffer *sopbuf2;
2256 GroupAssertion *g1, *g2;
2258 /* count the search attrs */
2259 for (i=0; op->ors_attrs && !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2260 alen += op->ors_attrs[i].an_name.bv_len + 1;
2262 /* Make a new copy of the operation */
2263 size = offsetof( SyncOperationBuffer, sob_extra ) +
2264 (i ? ( (i+1) * sizeof(AttributeName) + alen) : 0) +
2265 op->o_req_dn.bv_len + 1 +
2266 op->o_req_ndn.bv_len + 1 +
2267 op->o_ndn.bv_len + 1 +
2268 so->s_filterstr.bv_len + 1;
2269 sopbuf2 = ch_calloc( 1, size );
2270 op2 = &sopbuf2->sob_op;
2271 op2->o_hdr = &sopbuf2->sob_hdr;
2272 LDAP_SLIST_FIRST(&op2->o_extra) = &sopbuf2->sob_oe;
2274 /* Copy the fields we care about explicitly, leave the rest alone */
2275 *op2->o_hdr = *op->o_hdr;
2276 op2->o_tag = op->o_tag;
2277 op2->o_time = op->o_time;
2278 op2->o_bd = on->on_info->oi_origdb;
2279 op2->o_request = op->o_request;
2280 op2->o_managedsait = op->o_managedsait;
2281 LDAP_SLIST_FIRST(&op2->o_extra)->oe_key = on;
2282 LDAP_SLIST_NEXT(LDAP_SLIST_FIRST(&op2->o_extra), oe_next) = NULL;
2284 ptr = (char *) sopbuf2 + offsetof( SyncOperationBuffer, sob_extra );
2286 op2->ors_attrs = (AttributeName *) ptr;
2287 ptr = (char *) &op2->ors_attrs[i+1];
2288 for (i=0; !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2289 op2->ors_attrs[i] = op->ors_attrs[i];
2290 op2->ors_attrs[i].an_name.bv_val = ptr;
2291 ptr = lutil_strcopy( ptr, op->ors_attrs[i].an_name.bv_val ) + 1;
2293 BER_BVZERO( &op2->ors_attrs[i].an_name );
2296 op2->o_authz = op->o_authz;
2297 op2->o_ndn.bv_val = ptr;
2298 ptr = lutil_strcopy(ptr, op->o_ndn.bv_val) + 1;
2299 op2->o_dn = op2->o_ndn;
2300 op2->o_req_dn.bv_len = op->o_req_dn.bv_len;
2301 op2->o_req_dn.bv_val = ptr;
2302 ptr = lutil_strcopy(ptr, op->o_req_dn.bv_val) + 1;
2303 op2->o_req_ndn.bv_len = op->o_req_ndn.bv_len;
2304 op2->o_req_ndn.bv_val = ptr;
2305 ptr = lutil_strcopy(ptr, op->o_req_ndn.bv_val) + 1;
2306 op2->ors_filterstr.bv_val = ptr;
2307 strcpy( ptr, so->s_filterstr.bv_val );
2308 op2->ors_filterstr.bv_len = so->s_filterstr.bv_len;
2310 /* Skip the AND/GE clause that we stuck on in front */
2311 if ( so->s_flags & PS_FIX_FILTER ) {
2312 op2->ors_filter = op->ors_filter->f_and->f_next;
2313 so->s_flags ^= PS_FIX_FILTER;
2315 op2->ors_filter = op->ors_filter;
2317 op2->ors_filter = filter_dup( op2->ors_filter, NULL );
2320 /* Copy any cached group ACLs individually */
2321 op2->o_groups = NULL;
2322 for ( g1=op->o_groups; g1; g1=g1->ga_next ) {
2323 g2 = ch_malloc( sizeof(GroupAssertion) + g1->ga_len );
2325 strcpy( g2->ga_ndn, g1->ga_ndn );
2326 g2->ga_next = op2->o_groups;
2329 /* Don't allow any further group caching */
2330 op2->o_do_not_cache = 1;
2332 /* Add op2 to conn so abandon will find us */
2333 op->o_conn->c_n_ops_executing++;
2334 op->o_conn->c_n_ops_completed--;
2335 LDAP_STAILQ_INSERT_TAIL( &op->o_conn->c_ops, op2, o_next );
2336 so->s_flags |= PS_IS_DETACHED;
2338 /* Prevent anyone else from trying to send a result for this op */
2343 syncprov_search_response( Operation *op, SlapReply *rs )
2345 searchstate *ss = op->o_callback->sc_private;
2346 slap_overinst *on = ss->ss_on;
2347 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2348 sync_control *srs = op->o_controls[slap_cids.sc_LDAPsync];
2350 if ( rs->sr_type == REP_SEARCH || rs->sr_type == REP_SEARCHREF ) {
2352 /* If we got a referral without a referral object, there's
2353 * something missing that we cannot replicate. Just ignore it.
2354 * The consumer will abort because we didn't send the expected
2357 if ( !rs->sr_entry ) {
2358 assert( rs->sr_entry != NULL );
2359 Debug( LDAP_DEBUG_ANY, "bogus referral in context\n",0,0,0 );
2360 return SLAP_CB_CONTINUE;
2362 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryCSN );
2363 if ( a == NULL && rs->sr_operational_attrs != NULL ) {
2364 a = attr_find( rs->sr_operational_attrs, slap_schema.si_ad_entryCSN );
2368 sid = slap_parse_csn_sid( &a->a_nvals[0] );
2370 /* Don't send changed entries back to the originator */
2371 if ( sid == srs->sr_state.sid && srs->sr_state.numcsns ) {
2372 Debug( LDAP_DEBUG_SYNC,
2373 "Entry %s changed by peer, ignored\n",
2374 rs->sr_entry->e_name.bv_val, 0, 0 );
2375 return LDAP_SUCCESS;
2378 /* If not a persistent search */
2380 /* Make sure entry is less than the snapshot'd contextCSN */
2381 for ( i=0; i<ss->ss_numcsns; i++ ) {
2382 if ( sid == ss->ss_sids[i] && ber_bvcmp( &a->a_nvals[0],
2383 &ss->ss_ctxcsn[i] ) > 0 ) {
2384 Debug( LDAP_DEBUG_SYNC,
2385 "Entry %s CSN %s greater than snapshot %s\n",
2386 rs->sr_entry->e_name.bv_val,
2387 a->a_nvals[0].bv_val,
2388 ss->ss_ctxcsn[i].bv_val );
2389 return LDAP_SUCCESS;
2394 /* Don't send old entries twice */
2395 if ( srs->sr_state.ctxcsn ) {
2396 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2397 if ( sid == srs->sr_state.sids[i] &&
2398 ber_bvcmp( &a->a_nvals[0],
2399 &srs->sr_state.ctxcsn[i] )<= 0 ) {
2400 Debug( LDAP_DEBUG_SYNC,
2401 "Entry %s CSN %s older or equal to ctx %s\n",
2402 rs->sr_entry->e_name.bv_val,
2403 a->a_nvals[0].bv_val,
2404 srs->sr_state.ctxcsn[i].bv_val );
2405 return LDAP_SUCCESS;
2410 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2412 rs->sr_ctrls[1] = NULL;
2413 rs->sr_flags |= REP_CTRLS_MUSTBEFREED;
2414 /* If we're in delta-sync mode, always send a cookie */
2415 if ( si->si_nopres && si->si_usehint && a ) {
2416 struct berval cookie;
2417 slap_compose_sync_cookie( op, &cookie, a->a_nvals, srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
2418 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2419 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 1, &cookie );
2420 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2422 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2423 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 0, NULL );
2425 } else if ( rs->sr_type == REP_RESULT && rs->sr_err == LDAP_SUCCESS ) {
2426 struct berval cookie = BER_BVNULL;
2428 if ( ( ss->ss_flags & SS_CHANGED ) &&
2429 ss->ss_ctxcsn && !BER_BVISNULL( &ss->ss_ctxcsn[0] )) {
2430 slap_compose_sync_cookie( op, &cookie, ss->ss_ctxcsn,
2431 srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
2433 Debug( LDAP_DEBUG_SYNC, "syncprov_search_response: cookie=%s\n", cookie.bv_val, 0, 0 );
2436 /* Is this a regular refresh?
2437 * Note: refresh never gets here if there were no changes
2440 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2442 rs->sr_ctrls[1] = NULL;
2443 rs->sr_flags |= REP_CTRLS_MUSTBEFREED;
2444 rs->sr_err = syncprov_done_ctrl( op, rs, rs->sr_ctrls,
2445 0, 1, &cookie, ( ss->ss_flags & SS_PRESENT ) ? LDAP_SYNC_REFRESH_PRESENTS :
2446 LDAP_SYNC_REFRESH_DELETES );
2447 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2449 /* It's RefreshAndPersist, transition to Persist phase */
2450 syncprov_sendinfo( op, rs, ( ss->ss_flags & SS_PRESENT ) ?
2451 LDAP_TAG_SYNC_REFRESH_PRESENT : LDAP_TAG_SYNC_REFRESH_DELETE,
2452 ( ss->ss_flags & SS_CHANGED ) ? &cookie : NULL,
2454 if ( !BER_BVISNULL( &cookie ))
2455 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2457 /* Detach this Op from frontend control */
2458 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
2460 /* But not if this connection was closed along the way */
2461 if ( op->o_abandon ) {
2462 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2463 /* syncprov_ab_cleanup will free this syncop */
2464 return SLAPD_ABANDON;
2467 ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex );
2468 /* Turn off the refreshing flag */
2469 ss->ss_so->s_flags ^= PS_IS_REFRESHING;
2471 syncprov_detach_op( op, ss->ss_so, on );
2473 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2475 /* If there are queued responses, fire them off */
2476 if ( ss->ss_so->s_res )
2477 syncprov_qstart( ss->ss_so );
2478 ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
2481 return LDAP_SUCCESS;
2485 return SLAP_CB_CONTINUE;
2489 syncprov_op_search( Operation *op, SlapReply *rs )
2491 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2492 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2494 int gotstate = 0, changed = 0, do_present = 0;
2495 syncops *sop = NULL;
2499 int i, *sids, numcsns;
2500 struct berval mincsn, maxcsn;
2504 if ( !(op->o_sync_mode & SLAP_SYNC_REFRESH) ) return SLAP_CB_CONTINUE;
2506 if ( op->ors_deref & LDAP_DEREF_SEARCHING ) {
2507 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR, "illegal value for derefAliases" );
2511 srs = op->o_controls[slap_cids.sc_LDAPsync];
2513 /* If this is a persistent search, set it up right away */
2514 if ( op->o_sync_mode & SLAP_SYNC_PERSIST ) {
2518 slap_callback sc = {0};
2524 so.s_flags = PS_IS_REFRESHING | PS_FIND_BASE;
2525 /* syncprov_findbase expects to be called as a callback... */
2526 sc.sc_private = &opc;
2528 ldap_pvt_thread_mutex_init( &so.s_mutex );
2529 cb = op->o_callback;
2530 op->o_callback = ≻
2531 rs->sr_err = syncprov_findbase( op, &fc );
2532 op->o_callback = cb;
2533 ldap_pvt_thread_mutex_destroy( &so.s_mutex );
2535 if ( rs->sr_err != LDAP_SUCCESS ) {
2536 send_ldap_result( op, rs );
2539 sop = ch_malloc( sizeof( syncops ));
2541 sop->s_rid = srs->sr_state.rid;
2542 sop->s_sid = srs->sr_state.sid;
2543 /* set refcount=2 to prevent being freed out from under us
2544 * by abandons that occur while we're running here
2548 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2549 while ( si->si_active ) {
2550 /* Wait for active mods to finish before proceeding, as they
2551 * may already have inspected the si_ops list looking for
2552 * consumers to replicate the change to. Using the log
2553 * doesn't help, as we may finish playing it before the
2554 * active mods gets added to it.
2556 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2557 if ( slapd_shutdown ) {
2559 return SLAPD_ABANDON;
2561 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
2562 ldap_pvt_thread_yield();
2563 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2565 if ( op->o_abandon ) {
2566 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2568 return SLAPD_ABANDON;
2570 ldap_pvt_thread_mutex_init( &sop->s_mutex );
2571 sop->s_next = si->si_ops;
2574 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2577 /* snapshot the ctxcsn
2578 * Note: this must not be done before the psearch setup. (ITS#8365)
2580 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2581 numcsns = si->si_numcsns;
2583 ber_bvarray_dup_x( &ctxcsn, si->si_ctxcsn, op->o_tmpmemctx );
2584 sids = op->o_tmpalloc( numcsns * sizeof(int), op->o_tmpmemctx );
2585 for ( i=0; i<numcsns; i++ )
2586 sids[i] = si->si_sids[i];
2591 dirty = si->si_dirty;
2592 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2594 /* If we have a cookie, handle the PRESENT lookups */
2595 if ( srs->sr_state.ctxcsn ) {
2599 /* If we don't have any CSN of our own yet, bail out.
2602 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
2603 rs->sr_text = "consumer has state info but provider doesn't!";
2607 if ( !si->si_nopres )
2608 do_present = SS_PRESENT;
2610 /* If there are SIDs we don't recognize in the cookie, drop them */
2611 for (i=0; i<srs->sr_state.numcsns; ) {
2612 for (j=i; j<numcsns; j++) {
2613 if ( srs->sr_state.sids[i] <= sids[j] ) {
2618 if ( j == numcsns || srs->sr_state.sids[i] != sids[j] ) {
2619 char *tmp = srs->sr_state.ctxcsn[i].bv_val;
2620 srs->sr_state.numcsns--;
2621 for ( j=i; j<srs->sr_state.numcsns; j++ ) {
2622 srs->sr_state.ctxcsn[j] = srs->sr_state.ctxcsn[j+1];
2623 srs->sr_state.sids[j] = srs->sr_state.sids[j+1];
2625 srs->sr_state.ctxcsn[j].bv_val = tmp;
2626 srs->sr_state.ctxcsn[j].bv_len = 0;
2632 if (srs->sr_state.numcsns != numcsns) {
2633 /* consumer doesn't have the right number of CSNs */
2634 changed = SS_CHANGED;
2635 if ( srs->sr_state.ctxcsn ) {
2636 ber_bvarray_free_x( srs->sr_state.ctxcsn, op->o_tmpmemctx );
2637 srs->sr_state.ctxcsn = NULL;
2639 if ( srs->sr_state.sids ) {
2640 slap_sl_free( srs->sr_state.sids, op->o_tmpmemctx );
2641 srs->sr_state.sids = NULL;
2643 srs->sr_state.numcsns = 0;
2647 /* Find the smallest CSN which differs from contextCSN */
2650 for ( i=0,j=0; i<srs->sr_state.numcsns; i++ ) {
2652 while ( srs->sr_state.sids[i] != sids[j] ) j++;
2653 if ( BER_BVISEMPTY( &maxcsn ) || ber_bvcmp( &maxcsn,
2654 &srs->sr_state.ctxcsn[i] ) < 0 ) {
2655 maxcsn = srs->sr_state.ctxcsn[i];
2658 newer = ber_bvcmp( &srs->sr_state.ctxcsn[i], &ctxcsn[j] );
2659 /* If our state is newer, tell consumer about changes */
2661 changed = SS_CHANGED;
2662 if ( BER_BVISEMPTY( &mincsn ) || ber_bvcmp( &mincsn,
2663 &srs->sr_state.ctxcsn[i] ) > 0 ) {
2664 mincsn = srs->sr_state.ctxcsn[i];
2667 } else if ( newer > 0 && sids[j] == slap_serverID ) {
2668 /* our state is older, complain to consumer */
2669 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
2670 rs->sr_text = "consumer state is newer than provider!";
2671 Log4( LDAP_DEBUG_SYNC, ldap_syslog_level,
2672 "consumer %d state %s is newer than provider %d state %s\n",
2673 sids[i], srs->sr_state.ctxcsn[i].bv_val, sids[j], /* == slap_serverID */
2677 syncops **sp = &si->si_ops;
2679 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2680 while ( *sp != sop )
2681 sp = &(*sp)->s_next;
2683 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2686 rs->sr_ctrls = NULL;
2687 send_ldap_result( op, rs );
2691 if ( BER_BVISEMPTY( &mincsn )) {
2696 /* If nothing has changed, shortcut it */
2697 if ( !changed && !dirty ) {
2699 no_change: if ( !(op->o_sync_mode & SLAP_SYNC_PERSIST) ) {
2700 LDAPControl *ctrls[2];
2704 syncprov_done_ctrl( op, rs, ctrls, 0, 0,
2705 NULL, LDAP_SYNC_REFRESH_DELETES );
2706 rs->sr_ctrls = ctrls;
2707 rs->sr_err = LDAP_SUCCESS;
2708 send_ldap_result( op, rs );
2709 rs->sr_ctrls = NULL;
2715 /* Do we have a sessionlog for this search? */
2719 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
2720 /* Are there any log entries, and is the consumer state
2721 * present in the session log?
2723 if ( sl->sl_num > 0 ) {
2725 for ( i=0; i<sl->sl_numcsns; i++ ) {
2726 /* SID not present == new enough */
2727 if ( minsid < sl->sl_sids[i] ) {
2732 if ( minsid == sl->sl_sids[i] ) {
2734 if ( ber_bvcmp( &mincsn, &sl->sl_mincsn[i] ) >= 0 )
2739 /* SID not present == new enough */
2740 if ( i == sl->sl_numcsns )
2745 /* mutex is unlocked in playlog */
2746 syncprov_playlog( op, rs, sl, srs, ctxcsn, numcsns, sids );
2748 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
2751 /* Is the CSN still present in the database? */
2752 if ( syncprov_findcsn( op, FIND_CSN, &mincsn ) != LDAP_SUCCESS ) {
2753 /* No, so a reload is required */
2754 /* the 2.2 consumer doesn't send this hint */
2755 if ( si->si_usehint && srs->sr_rhint == 0 ) {
2757 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2759 op->o_tmpfree( sids, op->o_tmpmemctx );
2760 rs->sr_err = LDAP_SYNC_REFRESH_REQUIRED;
2761 rs->sr_text = "sync cookie is stale";
2764 if ( srs->sr_state.ctxcsn ) {
2765 ber_bvarray_free_x( srs->sr_state.ctxcsn, op->o_tmpmemctx );
2766 srs->sr_state.ctxcsn = NULL;
2768 if ( srs->sr_state.sids ) {
2769 slap_sl_free( srs->sr_state.sids, op->o_tmpmemctx );
2770 srs->sr_state.sids = NULL;
2772 srs->sr_state.numcsns = 0;
2775 /* If changed and doing Present lookup, send Present UUIDs */
2776 if ( do_present && syncprov_findcsn( op, FIND_PRESENT, 0 ) !=
2779 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2781 op->o_tmpfree( sids, op->o_tmpmemctx );
2786 /* The consumer knows nothing, we know nothing. OK. */
2789 /* No consumer state, assume something has changed */
2790 changed = SS_CHANGED;
2794 /* Append CSN range to search filter, save original filter
2795 * for persistent search evaluation
2798 ldap_pvt_thread_mutex_lock( &sop->s_mutex );
2799 sop->s_filterstr = op->ors_filterstr;
2800 /* correct the refcount that was set to 2 before */
2804 /* If something changed, find the changes */
2805 if ( gotstate && ( changed || dirty ) ) {
2806 Filter *fand, *fava;
2808 fand = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2809 fand->f_choice = LDAP_FILTER_AND;
2810 fand->f_next = NULL;
2811 fava = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2813 fava->f_choice = LDAP_FILTER_GE;
2814 fava->f_ava = op->o_tmpalloc( sizeof(AttributeAssertion), op->o_tmpmemctx );
2815 fava->f_ava->aa_desc = slap_schema.si_ad_entryCSN;
2816 #ifdef LDAP_COMP_MATCH
2817 fava->f_ava->aa_cf = NULL;
2819 ber_dupbv_x( &fava->f_ava->aa_value, &mincsn, op->o_tmpmemctx );
2820 fava->f_next = op->ors_filter;
2821 op->ors_filter = fand;
2822 filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2824 sop->s_flags |= PS_FIX_FILTER;
2828 ldap_pvt_thread_mutex_unlock( &sop->s_mutex );
2831 /* Let our callback add needed info to returned entries */
2832 cb = op->o_tmpcalloc(1, sizeof(slap_callback)+sizeof(searchstate), op->o_tmpmemctx);
2833 ss = (searchstate *)(cb+1);
2836 ss->ss_flags = do_present | changed;
2837 ss->ss_ctxcsn = ctxcsn;
2838 ss->ss_numcsns = numcsns;
2840 cb->sc_response = syncprov_search_response;
2841 cb->sc_private = ss;
2842 cb->sc_next = op->o_callback;
2843 op->o_callback = cb;
2845 /* If this is a persistent search and no changes were reported during
2846 * the refresh phase, just invoke the response callback to transition
2847 * us into persist phase
2849 if ( !changed && !dirty ) {
2850 rs->sr_err = LDAP_SUCCESS;
2851 rs->sr_nentries = 0;
2852 send_ldap_result( op, rs );
2855 return SLAP_CB_CONTINUE;
2859 syncprov_operational(
2863 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2864 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2866 /* This prevents generating unnecessarily; frontend will strip
2867 * any statically stored copy.
2869 if ( op->o_sync != SLAP_CONTROL_NONE )
2870 return SLAP_CB_CONTINUE;
2872 if ( rs->sr_entry &&
2873 dn_match( &rs->sr_entry->e_nname, &si->si_contextdn )) {
2875 if ( SLAP_OPATTRS( rs->sr_attr_flags ) ||
2876 ad_inlist( slap_schema.si_ad_contextCSN, rs->sr_attrs )) {
2877 Attribute *a, **ap = NULL;
2879 for ( a=rs->sr_entry->e_attrs; a; a=a->a_next ) {
2880 if ( a->a_desc == slap_schema.si_ad_contextCSN )
2884 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2885 if ( si->si_ctxcsn ) {
2887 for ( ap = &rs->sr_operational_attrs; *ap;
2888 ap=&(*ap)->a_next );
2890 a = attr_alloc( slap_schema.si_ad_contextCSN );
2895 if ( rs_entry2modifiable( op, rs, on )) {
2896 a = attr_find( rs->sr_entry->e_attrs,
2897 slap_schema.si_ad_contextCSN );
2899 if ( a->a_nvals != a->a_vals ) {
2900 ber_bvarray_free( a->a_nvals );
2903 ber_bvarray_free( a->a_vals );
2907 attr_valadd( a, si->si_ctxcsn, si->si_ctxcsn, si->si_numcsns );
2909 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2912 return SLAP_CB_CONTINUE;
2922 static ConfigDriver sp_cf_gen;
2924 static ConfigTable spcfg[] = {
2925 { "syncprov-checkpoint", "ops> <minutes", 3, 3, 0, ARG_MAGIC|SP_CHKPT,
2926 sp_cf_gen, "( OLcfgOvAt:1.1 NAME 'olcSpCheckpoint' "
2927 "DESC 'ContextCSN checkpoint interval in ops and minutes' "
2928 "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
2929 { "syncprov-sessionlog", "ops", 2, 2, 0, ARG_INT|ARG_MAGIC|SP_SESSL,
2930 sp_cf_gen, "( OLcfgOvAt:1.2 NAME 'olcSpSessionlog' "
2931 "DESC 'Session log size in ops' "
2932 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
2933 { "syncprov-nopresent", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_NOPRES,
2934 sp_cf_gen, "( OLcfgOvAt:1.3 NAME 'olcSpNoPresent' "
2935 "DESC 'Omit Present phase processing' "
2936 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2937 { "syncprov-reloadhint", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_USEHINT,
2938 sp_cf_gen, "( OLcfgOvAt:1.4 NAME 'olcSpReloadHint' "
2939 "DESC 'Observe Reload Hint in Request control' "
2940 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2941 { NULL, NULL, 0, 0, 0, ARG_IGNORED }
2944 static ConfigOCs spocs[] = {
2945 { "( OLcfgOvOc:1.1 "
2946 "NAME 'olcSyncProvConfig' "
2947 "DESC 'SyncRepl Provider configuration' "
2948 "SUP olcOverlayConfig "
2949 "MAY ( olcSpCheckpoint "
2950 "$ olcSpSessionlog "
2952 "$ olcSpReloadHint "
2954 Cft_Overlay, spcfg },
2959 sp_cf_gen(ConfigArgs *c)
2961 slap_overinst *on = (slap_overinst *)c->bi;
2962 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2965 if ( c->op == SLAP_CONFIG_EMIT ) {
2966 switch ( c->type ) {
2968 if ( si->si_chkops || si->si_chktime ) {
2970 /* we assume si_chktime is a multiple of 60
2971 * because the parsed value was originally
2972 * multiplied by 60 */
2973 bv.bv_len = snprintf( c->cr_msg, sizeof( c->cr_msg ),
2974 "%d %d", si->si_chkops, si->si_chktime/60 );
2975 if ( bv.bv_len >= sizeof( c->cr_msg ) ) {
2978 bv.bv_val = c->cr_msg;
2979 value_add_one( &c->rvalue_vals, &bv );
2986 if ( si->si_logs ) {
2987 c->value_int = si->si_logs->sl_size;
2993 if ( si->si_nopres ) {
3000 if ( si->si_usehint ) {
3008 } else if ( c->op == LDAP_MOD_DELETE ) {
3009 switch ( c->type ) {
3016 si->si_logs->sl_size = 0;
3018 rc = LDAP_NO_SUCH_ATTRIBUTE;
3021 if ( si->si_nopres )
3024 rc = LDAP_NO_SUCH_ATTRIBUTE;
3027 if ( si->si_usehint )
3030 rc = LDAP_NO_SUCH_ATTRIBUTE;
3035 switch ( c->type ) {
3037 if ( lutil_atoi( &si->si_chkops, c->argv[1] ) != 0 ) {
3038 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint ops # \"%s\"",
3039 c->argv[0], c->argv[1] );
3040 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
3041 "%s: %s\n", c->log, c->cr_msg, 0 );
3042 return ARG_BAD_CONF;
3044 if ( si->si_chkops <= 0 ) {
3045 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint ops # \"%d\"",
3046 c->argv[0], si->si_chkops );
3047 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
3048 "%s: %s\n", c->log, c->cr_msg, 0 );
3049 return ARG_BAD_CONF;
3051 if ( lutil_atoi( &si->si_chktime, c->argv[2] ) != 0 ) {
3052 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint time \"%s\"",
3053 c->argv[0], c->argv[1] );
3054 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
3055 "%s: %s\n", c->log, c->cr_msg, 0 );
3056 return ARG_BAD_CONF;
3058 if ( si->si_chktime <= 0 ) {
3059 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint time \"%d\"",
3060 c->argv[0], si->si_chkops );
3061 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
3062 "%s: %s\n", c->log, c->cr_msg, 0 );
3063 return ARG_BAD_CONF;
3065 si->si_chktime *= 60;
3069 int size = c->value_int;
3072 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s size %d is negative",
3074 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
3075 "%s: %s\n", c->log, c->cr_msg, 0 );
3076 return ARG_BAD_CONF;
3080 sl = ch_malloc( sizeof( sessionlog ));
3081 sl->sl_mincsn = NULL;
3085 sl->sl_head = sl->sl_tail = NULL;
3086 ldap_pvt_thread_mutex_init( &sl->sl_mutex );
3093 si->si_nopres = c->value_int;
3096 si->si_usehint = c->value_int;
3102 /* ITS#3456 we cannot run this search on the main thread, must use a
3103 * child thread in order to insure we have a big enough stack.
3110 syncprov_findcsn( ptr, FIND_MAXCSN, 0 );
3115 /* Read any existing contextCSN from the underlying db.
3116 * Then search for any entries newer than that. If no value exists,
3117 * just generate it. Cache whatever result.
3125 slap_overinst *on = (slap_overinst *) be->bd_info;
3126 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3128 Connection conn = { 0 };
3129 OperationBuffer opbuf;
3134 void *thrctx = NULL;
3136 if ( !SLAP_LASTMOD( be )) {
3137 Debug( LDAP_DEBUG_ANY,
3138 "syncprov_db_open: invalid config, lastmod must be enabled\n", 0, 0, 0 );
3142 if ( slapMode & SLAP_TOOL_MODE ) {
3146 rc = overlay_register_control( be, LDAP_CONTROL_SYNC );
3151 thrctx = ldap_pvt_thread_pool_context();
3152 connection_fake_init2( &conn, &opbuf, thrctx, 0 );
3155 op->o_dn = be->be_rootdn;
3156 op->o_ndn = be->be_rootndn;
3158 if ( SLAP_SYNC_SUBENTRY( be )) {
3159 build_new_dn( &si->si_contextdn, be->be_nsuffix,
3160 (struct berval *)&slap_ldapsync_cn_bv, NULL );
3162 si->si_contextdn = be->be_nsuffix[0];
3164 rc = overlay_entry_get_ov( op, &si->si_contextdn, NULL,
3165 slap_schema.si_ad_contextCSN, 0, &e, on );
3168 ldap_pvt_thread_t tid;
3170 a = attr_find( e->e_attrs, slap_schema.si_ad_contextCSN );
3172 ber_bvarray_dup_x( &si->si_ctxcsn, a->a_vals, NULL );
3173 si->si_numcsns = a->a_numvals;
3174 si->si_sids = slap_parse_csn_sids( si->si_ctxcsn, a->a_numvals, NULL );
3175 slap_sort_csn_sids( si->si_ctxcsn, si->si_sids, si->si_numcsns, NULL );
3177 overlay_entry_release_ov( op, e, 0, on );
3178 if ( si->si_ctxcsn && !SLAP_DBCLEAN( be )) {
3179 op->o_tag = LDAP_REQ_SEARCH;
3180 op->o_req_dn = be->be_suffix[0];
3181 op->o_req_ndn = be->be_nsuffix[0];
3182 op->ors_scope = LDAP_SCOPE_SUBTREE;
3183 ldap_pvt_thread_create( &tid, 0, syncprov_db_otask, op );
3184 ldap_pvt_thread_join( tid, NULL );
3188 /* Didn't find a contextCSN, should we generate one? */
3189 if ( !si->si_ctxcsn ) {
3190 char csnbuf[ LDAP_PVT_CSNSTR_BUFSIZE ];
3193 if ( slap_serverID || SLAP_SYNC_SHADOW( op->o_bd )) {
3194 /* If we're also a consumer, then don't generate anything.
3195 * Wait for our provider to send it to us, or for a local
3196 * modify if we have multimaster.
3200 csn.bv_val = csnbuf;
3201 csn.bv_len = sizeof( csnbuf );
3202 slap_get_csn( op, &csn, 0 );
3203 value_add_one( &si->si_ctxcsn, &csn );
3205 si->si_sids = ch_malloc( sizeof(int) );
3206 si->si_sids[0] = slap_serverID;
3208 /* make sure we do a checkpoint on close */
3212 /* Initialize the sessionlog mincsn */
3213 if ( si->si_logs && si->si_numcsns ) {
3214 sessionlog *sl = si->si_logs;
3216 ber_bvarray_dup_x( &sl->sl_mincsn, si->si_ctxcsn, NULL );
3217 sl->sl_numcsns = si->si_numcsns;
3218 sl->sl_sids = ch_malloc( si->si_numcsns * sizeof(int) );
3219 for ( i=0; i < si->si_numcsns; i++ )
3220 sl->sl_sids[i] = si->si_sids[i];
3224 op->o_bd->bd_info = (BackendInfo *)on;
3228 /* Write the current contextCSN into the underlying db.
3236 slap_overinst *on = (slap_overinst *) be->bd_info;
3237 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3238 #ifdef SLAP_CONFIG_DELETE
3239 syncops *so, *sonext;
3240 #endif /* SLAP_CONFIG_DELETE */
3242 if ( slapMode & SLAP_TOOL_MODE ) {
3245 if ( si->si_numops ) {
3246 Connection conn = {0};
3247 OperationBuffer opbuf;
3251 thrctx = ldap_pvt_thread_pool_context();
3252 connection_fake_init2( &conn, &opbuf, thrctx, 0 );
3255 op->o_dn = be->be_rootdn;
3256 op->o_ndn = be->be_rootndn;
3257 syncprov_checkpoint( op, on );
3260 #ifdef SLAP_CONFIG_DELETE
3261 if ( !slapd_shutdown ) {
3262 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
3263 for ( so=si->si_ops, sonext=so; so; so=sonext ) {
3264 SlapReply rs = {REP_RESULT};
3265 rs.sr_err = LDAP_UNAVAILABLE;
3266 send_ldap_result( so->s_op, &rs );
3268 if ( so->s_flags & PS_TASK_QUEUED )
3269 ldap_pvt_thread_pool_retract( so->s_pool_cookie );
3270 if ( !syncprov_drop_psearch( so, 0 ))
3274 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
3276 overlay_unregister_control( be, LDAP_CONTROL_SYNC );
3277 #endif /* SLAP_CONFIG_DELETE */
3288 slap_overinst *on = (slap_overinst *)be->bd_info;
3289 syncprov_info_t *si;
3291 if ( SLAP_ISGLOBALOVERLAY( be ) ) {
3292 Debug( LDAP_DEBUG_ANY,
3293 "syncprov must be instantiated within a database.\n",
3298 si = ch_calloc(1, sizeof(syncprov_info_t));
3299 on->on_bi.bi_private = si;
3300 ldap_pvt_thread_rdwr_init( &si->si_csn_rwlock );
3301 ldap_pvt_thread_mutex_init( &si->si_ops_mutex );
3302 ldap_pvt_thread_mutex_init( &si->si_mods_mutex );
3303 ldap_pvt_thread_mutex_init( &si->si_resp_mutex );
3305 csn_anlist[0].an_desc = slap_schema.si_ad_entryCSN;
3306 csn_anlist[0].an_name = slap_schema.si_ad_entryCSN->ad_cname;
3307 csn_anlist[1].an_desc = slap_schema.si_ad_entryUUID;
3308 csn_anlist[1].an_name = slap_schema.si_ad_entryUUID->ad_cname;
3310 uuid_anlist[0].an_desc = slap_schema.si_ad_entryUUID;
3311 uuid_anlist[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
3317 syncprov_db_destroy(
3322 slap_overinst *on = (slap_overinst *)be->bd_info;
3323 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3326 if ( si->si_logs ) {
3327 sessionlog *sl = si->si_logs;
3328 slog_entry *se = sl->sl_head;
3331 slog_entry *se_next = se->se_next;
3335 if ( sl->sl_mincsn )
3336 ber_bvarray_free( sl->sl_mincsn );
3338 ch_free( sl->sl_sids );
3340 ldap_pvt_thread_mutex_destroy(&si->si_logs->sl_mutex);
3341 ch_free( si->si_logs );
3343 if ( si->si_ctxcsn )
3344 ber_bvarray_free( si->si_ctxcsn );
3346 ch_free( si->si_sids );
3347 ldap_pvt_thread_mutex_destroy( &si->si_resp_mutex );
3348 ldap_pvt_thread_mutex_destroy( &si->si_mods_mutex );
3349 ldap_pvt_thread_mutex_destroy( &si->si_ops_mutex );
3350 ldap_pvt_thread_rdwr_destroy( &si->si_csn_rwlock );
3357 static int syncprov_parseCtrl (
3363 BerElementBuffer berbuf;
3364 BerElement *ber = (BerElement *)&berbuf;
3367 struct berval cookie = BER_BVNULL;
3371 if ( op->o_sync != SLAP_CONTROL_NONE ) {
3372 rs->sr_text = "Sync control specified multiple times";
3373 return LDAP_PROTOCOL_ERROR;
3376 if ( op->o_pagedresults != SLAP_CONTROL_NONE ) {
3377 rs->sr_text = "Sync control specified with pagedResults control";
3378 return LDAP_PROTOCOL_ERROR;
3381 if ( BER_BVISNULL( &ctrl->ldctl_value ) ) {
3382 rs->sr_text = "Sync control value is absent";
3383 return LDAP_PROTOCOL_ERROR;
3386 if ( BER_BVISEMPTY( &ctrl->ldctl_value ) ) {
3387 rs->sr_text = "Sync control value is empty";
3388 return LDAP_PROTOCOL_ERROR;
3391 /* Parse the control value
3392 * syncRequestValue ::= SEQUENCE {
3397 * refreshAndPersist (3)
3399 * cookie syncCookie OPTIONAL
3403 ber_init2( ber, &ctrl->ldctl_value, 0 );
3405 if ( (tag = ber_scanf( ber, "{i" /*}*/, &mode )) == LBER_ERROR ) {
3406 rs->sr_text = "Sync control : mode decoding error";
3407 return LDAP_PROTOCOL_ERROR;
3411 case LDAP_SYNC_REFRESH_ONLY:
3412 mode = SLAP_SYNC_REFRESH;
3414 case LDAP_SYNC_REFRESH_AND_PERSIST:
3415 mode = SLAP_SYNC_REFRESH_AND_PERSIST;
3418 rs->sr_text = "Sync control : unknown update mode";
3419 return LDAP_PROTOCOL_ERROR;
3422 tag = ber_peek_tag( ber, &len );
3424 if ( tag == LDAP_TAG_SYNC_COOKIE ) {
3425 if (( ber_scanf( ber, /*{*/ "m", &cookie )) == LBER_ERROR ) {
3426 rs->sr_text = "Sync control : cookie decoding error";
3427 return LDAP_PROTOCOL_ERROR;
3429 tag = ber_peek_tag( ber, &len );
3431 if ( tag == LDAP_TAG_RELOAD_HINT ) {
3432 if (( ber_scanf( ber, /*{*/ "b", &rhint )) == LBER_ERROR ) {
3433 rs->sr_text = "Sync control : rhint decoding error";
3434 return LDAP_PROTOCOL_ERROR;
3437 if (( ber_scanf( ber, /*{*/ "}")) == LBER_ERROR ) {
3438 rs->sr_text = "Sync control : decoding error";
3439 return LDAP_PROTOCOL_ERROR;
3441 sr = op->o_tmpcalloc( 1, sizeof(struct sync_control), op->o_tmpmemctx );
3442 sr->sr_rhint = rhint;
3443 if (!BER_BVISNULL(&cookie)) {
3444 ber_dupbv_x( &sr->sr_state.octet_str, &cookie, op->o_tmpmemctx );
3445 /* If parse fails, pretend no cookie was sent */
3446 if ( slap_parse_sync_cookie( &sr->sr_state, op->o_tmpmemctx ) ||
3447 sr->sr_state.rid == -1 ) {
3448 if ( sr->sr_state.ctxcsn ) {
3449 ber_bvarray_free_x( sr->sr_state.ctxcsn, op->o_tmpmemctx );
3450 sr->sr_state.ctxcsn = NULL;
3452 sr->sr_state.numcsns = 0;
3456 op->o_controls[slap_cids.sc_LDAPsync] = sr;
3458 op->o_sync = ctrl->ldctl_iscritical
3459 ? SLAP_CONTROL_CRITICAL
3460 : SLAP_CONTROL_NONCRITICAL;
3462 op->o_sync_mode |= mode; /* o_sync_mode shares o_sync */
3464 return LDAP_SUCCESS;
3467 /* This overlay is set up for dynamic loading via moduleload. For static
3468 * configuration, you'll need to arrange for the slap_overinst to be
3469 * initialized and registered by some other function inside slapd.
3472 static slap_overinst syncprov;
3475 syncprov_initialize()
3479 rc = register_supported_control( LDAP_CONTROL_SYNC,
3480 SLAP_CTRL_SEARCH, NULL,
3481 syncprov_parseCtrl, &slap_cids.sc_LDAPsync );
3482 if ( rc != LDAP_SUCCESS ) {
3483 Debug( LDAP_DEBUG_ANY,
3484 "syncprov_init: Failed to register control %d\n", rc, 0, 0 );
3488 syncprov.on_bi.bi_type = "syncprov";
3489 syncprov.on_bi.bi_db_init = syncprov_db_init;
3490 syncprov.on_bi.bi_db_destroy = syncprov_db_destroy;
3491 syncprov.on_bi.bi_db_open = syncprov_db_open;
3492 syncprov.on_bi.bi_db_close = syncprov_db_close;
3494 syncprov.on_bi.bi_op_abandon = syncprov_op_abandon;
3495 syncprov.on_bi.bi_op_cancel = syncprov_op_abandon;
3497 syncprov.on_bi.bi_op_add = syncprov_op_mod;
3498 syncprov.on_bi.bi_op_compare = syncprov_op_compare;
3499 syncprov.on_bi.bi_op_delete = syncprov_op_mod;
3500 syncprov.on_bi.bi_op_modify = syncprov_op_mod;
3501 syncprov.on_bi.bi_op_modrdn = syncprov_op_mod;
3502 syncprov.on_bi.bi_op_search = syncprov_op_search;
3503 syncprov.on_bi.bi_extended = syncprov_op_extended;
3504 syncprov.on_bi.bi_operational = syncprov_operational;
3506 syncprov.on_bi.bi_cf_ocs = spocs;
3508 generic_filter.f_desc = slap_schema.si_ad_objectClass;
3510 rc = config_register_schema( spcfg, spocs );
3511 if ( rc ) return rc;
3513 return overlay_register( &syncprov );
3516 #if SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC
3518 init_module( int argc, char *argv[] )
3520 return syncprov_initialize();
3522 #endif /* SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC */
3524 #endif /* defined(SLAPD_OVER_SYNCPROV) */