2 /* syncprov.c - syncrepl provider */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2004-2014 The OpenLDAP Foundation.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted only as authorized by the OpenLDAP
12 * A copy of this license is available in the file LICENSE in the
13 * top-level directory of the distribution or, alternatively, at
14 * <http://www.OpenLDAP.org/license.html>.
17 * This work was initially developed by Howard Chu for inclusion in
23 #ifdef SLAPD_OVER_SYNCPROV
25 #include <ac/string.h>
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;
92 ldap_pvt_thread_mutex_t s_mutex;
95 /* A received sync control */
96 typedef struct sync_control {
97 struct sync_cookie sr_state;
101 #if 0 /* moved back to slap.h */
102 #define o_sync o_ctrlflag[slap_cids.sc_LDAPsync]
104 /* o_sync_mode uses data bits of o_sync */
105 #define o_sync_mode o_ctrlflag[slap_cids.sc_LDAPsync]
107 #define SLAP_SYNC_NONE (LDAP_SYNC_NONE<<SLAP_CONTROL_SHIFT)
108 #define SLAP_SYNC_REFRESH (LDAP_SYNC_REFRESH_ONLY<<SLAP_CONTROL_SHIFT)
109 #define SLAP_SYNC_PERSIST (LDAP_SYNC_RESERVED<<SLAP_CONTROL_SHIFT)
110 #define SLAP_SYNC_REFRESH_AND_PERSIST (LDAP_SYNC_REFRESH_AND_PERSIST<<SLAP_CONTROL_SHIFT)
112 /* Record of which searches matched at premodify step */
113 typedef struct syncmatches {
114 struct syncmatches *sm_next;
118 /* Session log data */
119 typedef struct slog_entry {
120 struct slog_entry *se_next;
121 struct berval se_uuid;
122 struct berval se_csn;
127 typedef struct sessionlog {
135 ldap_pvt_thread_mutex_t sl_mutex;
138 /* The main state for this overlay */
139 typedef struct syncprov_info_t {
141 struct berval si_contextdn;
142 BerVarray si_ctxcsn; /* ldapsync context */
145 int si_chkops; /* checkpointing info */
147 int si_numops; /* number of ops since last checkpoint */
148 int si_nopres; /* Skip present phase */
149 int si_usehint; /* use reload hint */
150 int si_active; /* True if there are active mods */
151 int si_dirty; /* True if the context is dirty, i.e changes
152 * have been made without updating the csn. */
153 time_t si_chklast; /* time of last checkpoint */
154 Avlnode *si_mods; /* entries being modified */
156 ldap_pvt_thread_rdwr_t si_csn_rwlock;
157 ldap_pvt_thread_mutex_t si_ops_mutex;
158 ldap_pvt_thread_mutex_t si_mods_mutex;
159 ldap_pvt_thread_mutex_t si_resp_mutex;
162 typedef struct opcookie {
164 syncmatches *smatches;
167 struct berval sdn; /* DN of entry, for deletes */
169 struct berval suuid; /* UUID of entry */
170 struct berval sctxcsn;
171 short osid; /* sid of op csn */
172 short rsid; /* sid of relay */
173 short sreference; /* Is the entry a reference? */
177 typedef struct fbase_cookie {
178 struct berval *fdn; /* DN of a modified entry, for scope testing */
179 syncops *fss; /* persistent search we're testing against */
180 int fbase; /* if TRUE we found the search base and it's still valid */
181 int fscope; /* if TRUE then fdn is within the psearch scope */
184 static AttributeName csn_anlist[3];
185 static AttributeName uuid_anlist[2];
187 /* Build a LDAPsync intermediate state control */
193 int entry_sync_state,
197 struct berval *cookie )
202 BerElementBuffer berbuf;
203 BerElement *ber = (BerElement *)&berbuf;
206 struct berval entryuuid_bv = BER_BVNULL;
208 ber_init2( ber, 0, LBER_USE_DER );
209 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
211 for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
212 AttributeDescription *desc = a->a_desc;
213 if ( desc == slap_schema.si_ad_entryUUID ) {
214 entryuuid_bv = a->a_nvals[0];
219 /* FIXME: what if entryuuid is NULL or empty ? */
221 if ( send_cookie && cookie ) {
222 ber_printf( ber, "{eOON}",
223 entry_sync_state, &entryuuid_bv, cookie );
225 ber_printf( ber, "{eON}",
226 entry_sync_state, &entryuuid_bv );
229 ret = ber_flatten2( ber, &bv, 0 );
231 cp = op->o_tmpalloc( sizeof( LDAPControl ) + bv.bv_len, op->o_tmpmemctx );
232 cp->ldctl_oid = LDAP_CONTROL_SYNC_STATE;
233 cp->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
234 cp->ldctl_value.bv_val = (char *)&cp[1];
235 cp->ldctl_value.bv_len = bv.bv_len;
236 AC_MEMCPY( cp->ldctl_value.bv_val, bv.bv_val, bv.bv_len );
237 ctrls[num_ctrls] = cp;
242 Debug( LDAP_DEBUG_TRACE,
243 "slap_build_sync_ctrl: ber_flatten2 failed (%d)\n",
245 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
252 /* Build a LDAPsync final state control */
260 struct berval *cookie,
264 BerElementBuffer berbuf;
265 BerElement *ber = (BerElement *)&berbuf;
269 ber_init2( ber, NULL, LBER_USE_DER );
270 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
272 ber_printf( ber, "{" );
273 if ( send_cookie && cookie ) {
274 ber_printf( ber, "O", cookie );
276 if ( refreshDeletes == LDAP_SYNC_REFRESH_DELETES ) {
277 ber_printf( ber, "b", refreshDeletes );
279 ber_printf( ber, "N}" );
281 ret = ber_flatten2( ber, &bv, 0 );
283 cp = op->o_tmpalloc( sizeof( LDAPControl ) + bv.bv_len, op->o_tmpmemctx );
284 cp->ldctl_oid = LDAP_CONTROL_SYNC_DONE;
285 cp->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
286 cp->ldctl_value.bv_val = (char *)&cp[1];
287 cp->ldctl_value.bv_len = bv.bv_len;
288 AC_MEMCPY( cp->ldctl_value.bv_val, bv.bv_val, bv.bv_len );
289 ctrls[num_ctrls] = cp;
295 Debug( LDAP_DEBUG_TRACE,
296 "syncprov_done_ctrl: ber_flatten2 failed (%d)\n",
298 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
310 struct berval *cookie,
315 BerElementBuffer berbuf;
316 BerElement *ber = (BerElement *)&berbuf;
317 struct berval rspdata;
321 ber_init2( ber, NULL, LBER_USE_DER );
322 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
326 case LDAP_TAG_SYNC_NEW_COOKIE:
327 ber_printf( ber, "tO", type, cookie );
329 case LDAP_TAG_SYNC_REFRESH_DELETE:
330 case LDAP_TAG_SYNC_REFRESH_PRESENT:
331 ber_printf( ber, "t{", type );
333 ber_printf( ber, "O", cookie );
335 if ( refreshDone == 0 ) {
336 ber_printf( ber, "b", refreshDone );
338 ber_printf( ber, "N}" );
340 case LDAP_TAG_SYNC_ID_SET:
341 ber_printf( ber, "t{", type );
343 ber_printf( ber, "O", cookie );
345 if ( refreshDeletes == 1 ) {
346 ber_printf( ber, "b", refreshDeletes );
348 ber_printf( ber, "[W]", syncUUIDs );
349 ber_printf( ber, "N}" );
352 Debug( LDAP_DEBUG_TRACE,
353 "syncprov_sendinfo: invalid syncinfo type (%d)\n",
359 ret = ber_flatten2( ber, &rspdata, 0 );
362 Debug( LDAP_DEBUG_TRACE,
363 "syncprov_sendinfo: ber_flatten2 failed (%d)\n",
365 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
369 rs->sr_rspoid = LDAP_SYNC_INFO;
370 rs->sr_rspdata = &rspdata;
371 send_ldap_intermediate( op, rs );
372 rs->sr_rspdata = NULL;
378 /* Find a modtarget in an AVL tree */
380 sp_avl_cmp( const void *c1, const void *c2 )
382 const modtarget *m1, *m2;
386 rc = m1->mt_dn.bv_len - m2->mt_dn.bv_len;
389 return ber_bvcmp( &m1->mt_dn, &m2->mt_dn );
392 /* syncprov_findbase:
393 * finds the true DN of the base of a search (with alias dereferencing) and
394 * checks to make sure the base entry doesn't get replaced with a different
395 * entry (e.g., swapping trees via ModDN, or retargeting an alias). If a
396 * change is detected, any persistent search on this base must be terminated /
398 * On the first call, we just save the DN and entryID. On subsequent calls
399 * we compare the DN and entryID with the saved values.
402 findbase_cb( Operation *op, SlapReply *rs )
404 slap_callback *sc = op->o_callback;
406 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
407 fbase_cookie *fc = sc->sc_private;
409 /* If no entryID, we're looking for the first time.
410 * Just store whatever we got.
412 if ( fc->fss->s_eid == NOID ) {
414 fc->fss->s_eid = rs->sr_entry->e_id;
415 ber_dupbv( &fc->fss->s_base, &rs->sr_entry->e_nname );
417 } else if ( rs->sr_entry->e_id == fc->fss->s_eid &&
418 dn_match( &rs->sr_entry->e_nname, &fc->fss->s_base )) {
420 /* OK, the DN is the same and the entryID is the same. */
424 if ( rs->sr_err != LDAP_SUCCESS ) {
425 Debug( LDAP_DEBUG_ANY, "findbase failed! %d\n", rs->sr_err,0,0 );
430 static Filter generic_filter = { LDAP_FILTER_PRESENT, { 0 }, NULL };
431 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
434 syncprov_findbase( Operation *op, fbase_cookie *fc )
436 /* Use basic parameters from syncrepl search, but use
437 * current op's threadctx / tmpmemctx
439 ldap_pvt_thread_mutex_lock( &fc->fss->s_mutex );
440 if ( fc->fss->s_flags & PS_FIND_BASE ) {
441 slap_callback cb = {0};
443 SlapReply frs = { REP_RESULT };
446 fc->fss->s_flags ^= PS_FIND_BASE;
447 ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
449 fop = *fc->fss->s_op;
451 fop.o_bd = fop.o_bd->bd_self;
452 fop.o_hdr = op->o_hdr;
453 fop.o_time = op->o_time;
454 fop.o_tincr = op->o_tincr;
455 fop.o_extra = op->o_extra;
457 cb.sc_response = findbase_cb;
460 fop.o_sync_mode = 0; /* turn off sync mode */
461 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
462 fop.o_callback = &cb;
463 fop.o_tag = LDAP_REQ_SEARCH;
464 fop.ors_scope = LDAP_SCOPE_BASE;
465 fop.ors_limit = NULL;
467 fop.ors_tlimit = SLAP_NO_LIMIT;
468 fop.ors_attrs = slap_anlist_no_attrs;
469 fop.ors_attrsonly = 1;
470 fop.ors_filter = &generic_filter;
471 fop.ors_filterstr = generic_filterstr;
473 rc = fop.o_bd->be_search( &fop, &frs );
475 ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
479 /* After the first call, see if the fdn resides in the scope */
480 if ( fc->fbase == 1 ) {
481 switch ( fc->fss->s_op->ors_scope ) {
482 case LDAP_SCOPE_BASE:
483 fc->fscope = dn_match( fc->fdn, &fc->fss->s_base );
485 case LDAP_SCOPE_ONELEVEL: {
487 dnParent( fc->fdn, &pdn );
488 fc->fscope = dn_match( &pdn, &fc->fss->s_base );
490 case LDAP_SCOPE_SUBTREE:
491 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base );
493 case LDAP_SCOPE_SUBORDINATE:
494 fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base ) &&
495 !dn_match( fc->fdn, &fc->fss->s_base );
503 /* If entryID has changed, then the base of this search has
504 * changed. Invalidate the psearch.
506 return LDAP_NO_SUCH_OBJECT;
510 * This function has three different purposes, but they all use a search
511 * that filters on entryCSN so they're combined here.
512 * 1: at startup time, after a contextCSN has been read from the database,
513 * we search for all entries with CSN >= contextCSN in case the contextCSN
514 * was not checkpointed at the previous shutdown.
516 * 2: when the current contextCSN is known and we have a sync cookie, we search
517 * for one entry with CSN = the cookie CSN. If not found, try <= cookie CSN.
518 * If an entry is found, the cookie CSN is valid, otherwise it is stale.
520 * 3: during a refresh phase, we search for all entries with CSN <= the cookie
521 * CSN, and generate Present records for them. We always collect this result
522 * in SyncID sets, even if there's only one match.
524 typedef enum find_csn_t {
531 findmax_cb( Operation *op, SlapReply *rs )
533 if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
534 struct berval *maxcsn = op->o_callback->sc_private;
535 Attribute *a = attr_find( rs->sr_entry->e_attrs,
536 slap_schema.si_ad_entryCSN );
538 if ( a && ber_bvcmp( &a->a_vals[0], maxcsn ) > 0 &&
539 slap_parse_csn_sid( &a->a_vals[0] ) == slap_serverID ) {
540 maxcsn->bv_len = a->a_vals[0].bv_len;
541 strcpy( maxcsn->bv_val, a->a_vals[0].bv_val );
548 findcsn_cb( Operation *op, SlapReply *rs )
550 slap_callback *sc = op->o_callback;
552 /* We just want to know that at least one exists, so it's OK if
553 * we exceed the unchecked limit.
555 if ( rs->sr_err == LDAP_ADMINLIMIT_EXCEEDED ||
556 (rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS )) {
557 sc->sc_private = (void *)1;
562 /* Build a list of entryUUIDs for sending in a SyncID set */
566 typedef struct fpres_cookie {
573 findpres_cb( Operation *op, SlapReply *rs )
575 slap_callback *sc = op->o_callback;
576 fpres_cookie *pc = sc->sc_private;
578 int ret = SLAP_CB_CONTINUE;
580 switch ( rs->sr_type ) {
582 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
584 pc->uuids[pc->num].bv_val = pc->last;
585 AC_MEMCPY( pc->uuids[pc->num].bv_val, a->a_nvals[0].bv_val,
586 pc->uuids[pc->num].bv_len );
588 pc->last = pc->uuids[pc->num].bv_val;
589 pc->uuids[pc->num].bv_val = NULL;
592 if ( pc->num != SLAP_SYNCUUID_SET_SIZE )
598 ret = syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET, NULL,
600 pc->uuids[pc->num].bv_val = pc->last;
602 pc->last = pc->uuids[0].bv_val;
612 syncprov_findcsn( Operation *op, find_csn_t mode, struct berval *csn )
614 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
615 syncprov_info_t *si = on->on_bi.bi_private;
617 slap_callback cb = {0};
619 SlapReply frs = { REP_RESULT };
620 char buf[LDAP_PVT_CSNSTR_BUFSIZE + STRLENOF("(entryCSN<=)")];
621 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
622 struct berval maxcsn;
624 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
625 fpres_cookie pcookie;
626 sync_control *srs = NULL;
627 struct slap_limits_set fc_limits;
628 int i, rc = LDAP_SUCCESS, findcsn_retry = 1;
631 if ( mode != FIND_MAXCSN ) {
632 srs = op->o_controls[slap_cids.sc_LDAPsync];
636 fop.o_sync_mode &= SLAP_CONTROL_MASK; /* turn off sync_mode */
637 /* We want pure entries, not referrals */
638 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
641 cf.f_av_desc = slap_schema.si_ad_entryCSN;
642 BER_BVZERO( &cf.f_av_value );
645 fop.o_callback = &cb;
646 fop.ors_limit = NULL;
647 fop.ors_tlimit = SLAP_NO_LIMIT;
648 fop.ors_filter = &cf;
649 fop.ors_filterstr.bv_val = buf;
654 cf.f_choice = LDAP_FILTER_GE;
655 /* If there are multiple CSNs, use the one with our serverID */
656 for ( i=0; i<si->si_numcsns; i++) {
657 if ( slap_serverID == si->si_sids[i] ) {
662 if ( i == si->si_numcsns ) {
663 /* No match: this is multimaster, and none of the content in the DB
664 * originated locally. Treat like no CSN.
666 return LDAP_NO_SUCH_OBJECT;
668 cf.f_av_value = si->si_ctxcsn[maxid];
669 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
670 "(entryCSN>=%s)", cf.f_av_value.bv_val );
671 if ( fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
674 fop.ors_attrsonly = 0;
675 fop.ors_attrs = csn_anlist;
676 fop.ors_slimit = SLAP_NO_LIMIT;
677 cb.sc_private = &maxcsn;
678 cb.sc_response = findmax_cb;
679 strcpy( cbuf, cf.f_av_value.bv_val );
680 maxcsn.bv_val = cbuf;
681 maxcsn.bv_len = cf.f_av_value.bv_len;
684 if ( BER_BVISEMPTY( &cf.f_av_value )) {
685 cf.f_av_value = *csn;
687 fop.o_dn = op->o_bd->be_rootdn;
688 fop.o_ndn = op->o_bd->be_rootndn;
689 fop.o_req_dn = op->o_bd->be_suffix[0];
690 fop.o_req_ndn = op->o_bd->be_nsuffix[0];
691 /* Look for exact match the first time */
692 if ( findcsn_retry ) {
693 cf.f_choice = LDAP_FILTER_EQUALITY;
694 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
695 "(entryCSN=%s)", cf.f_av_value.bv_val );
696 /* On retry, look for <= */
698 cf.f_choice = LDAP_FILTER_LE;
699 fop.ors_limit = &fc_limits;
700 memset( &fc_limits, 0, sizeof( fc_limits ));
701 fc_limits.lms_s_unchecked = 1;
702 fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
703 "(entryCSN<=%s)", cf.f_av_value.bv_val );
705 if ( fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
708 fop.ors_attrsonly = 1;
709 fop.ors_attrs = slap_anlist_no_attrs;
711 cb.sc_private = NULL;
712 cb.sc_response = findcsn_cb;
715 fop.ors_filter = op->ors_filter;
716 fop.ors_filterstr = op->ors_filterstr;
717 fop.ors_attrsonly = 0;
718 fop.ors_attrs = uuid_anlist;
719 fop.ors_slimit = SLAP_NO_LIMIT;
720 cb.sc_private = &pcookie;
721 cb.sc_response = findpres_cb;
724 /* preallocate storage for a full set */
725 pcookie.uuids = op->o_tmpalloc( (SLAP_SYNCUUID_SET_SIZE+1) *
726 sizeof(struct berval) + SLAP_SYNCUUID_SET_SIZE * UUID_LEN,
728 pcookie.last = (char *)(pcookie.uuids + SLAP_SYNCUUID_SET_SIZE+1);
729 pcookie.uuids[0].bv_val = pcookie.last;
730 pcookie.uuids[0].bv_len = UUID_LEN;
731 for (i=1; i<SLAP_SYNCUUID_SET_SIZE; i++) {
732 pcookie.uuids[i].bv_val = pcookie.uuids[i-1].bv_val + UUID_LEN;
733 pcookie.uuids[i].bv_len = UUID_LEN;
738 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
739 fop.o_bd->be_search( &fop, &frs );
740 fop.o_bd->bd_info = (BackendInfo *)on;
744 if ( ber_bvcmp( &si->si_ctxcsn[maxid], &maxcsn )) {
746 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
747 assert( !syn->ssyn_validate( syn, &maxcsn ));
749 ber_bvreplace( &si->si_ctxcsn[maxid], &maxcsn );
750 si->si_numops++; /* ensure a checkpoint */
754 /* If matching CSN was not found, invalidate the context. */
755 if ( !cb.sc_private ) {
756 /* If we didn't find an exact match, then try for <= */
757 if ( findcsn_retry ) {
759 rs_reinit( &frs, REP_RESULT );
762 rc = LDAP_NO_SUCH_OBJECT;
766 op->o_tmpfree( pcookie.uuids, op->o_tmpmemctx );
773 static void free_resinfo( syncres *sr )
776 ldap_pvt_thread_mutex_lock( &sr->s_info->ri_mutex );
777 for (st = &sr->s_info->ri_list; *st; st = &(*st)->s_rilist) {
783 ldap_pvt_thread_mutex_unlock( &sr->s_info->ri_mutex );
784 if ( !sr->s_info->ri_list ) {
785 ldap_pvt_thread_mutex_destroy( &sr->s_info->ri_mutex );
786 if ( sr->s_info->ri_e )
787 entry_free( sr->s_info->ri_e );
788 if ( !BER_BVISNULL( &sr->s_info->ri_cookie ))
789 ch_free( sr->s_info->ri_cookie.bv_val );
790 ch_free( sr->s_info );
795 syncprov_free_syncop( syncops *so, int unlink )
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 );
809 ldap_pvt_thread_mutex_lock( &so->s_si->si_ops_mutex );
810 for ( sop = &so->s_si->si_ops; *sop; sop = &(*sop)->s_next ) {
816 ldap_pvt_thread_mutex_unlock( &so->s_si->si_ops_mutex );
818 if ( so->s_flags & PS_IS_DETACHED ) {
819 filter_free( so->s_op->ors_filter );
820 for ( ga = so->s_op->o_groups; ga; ga=gnext ) {
826 ch_free( so->s_base.bv_val );
827 for ( sr=so->s_res; sr; sr=srnext ) {
832 ldap_pvt_thread_mutex_destroy( &so->s_mutex );
837 /* Send a persistent search response */
839 syncprov_sendresp( Operation *op, resinfo *ri, syncops *so, int mode )
841 SlapReply rs = { REP_SEARCH };
842 struct berval cookie, csns[2];
844 Attribute a_uuid = {0};
846 if ( so->s_op->o_abandon )
847 return SLAPD_ABANDON;
849 rs.sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2, op->o_tmpmemctx );
850 rs.sr_ctrls[1] = NULL;
851 rs.sr_flags = REP_CTRLS_MUSTBEFREED;
852 csns[0] = ri->ri_csn;
853 BER_BVZERO( &csns[1] );
854 slap_compose_sync_cookie( op, &cookie, csns, so->s_rid, slap_serverID ? slap_serverID : -1 );
857 if ( so->s_sid > 0 ) {
858 Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: to=%03x, cookie=%s\n",
859 so->s_sid, cookie.bv_val, 0 );
861 Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: cookie=%s\n",
862 cookie.bv_val, 0, 0 );
866 e_uuid.e_attrs = &a_uuid;
867 a_uuid.a_desc = slap_schema.si_ad_entryUUID;
868 a_uuid.a_nvals = &ri->ri_uuid;
869 rs.sr_err = syncprov_state_ctrl( op, &rs, &e_uuid,
870 mode, rs.sr_ctrls, 0, 1, &cookie );
871 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
873 rs.sr_entry = &e_uuid;
874 if ( mode == LDAP_SYNC_ADD || mode == LDAP_SYNC_MODIFY ) {
876 e_uuid.e_private = NULL;
881 if ( ri->ri_isref && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
882 rs.sr_ref = get_entry_referrals( op, rs.sr_entry );
883 rs.sr_err = send_search_reference( op, &rs );
884 ber_bvarray_free( rs.sr_ref );
888 case LDAP_SYNC_MODIFY:
889 rs.sr_attrs = op->ors_attrs;
890 rs.sr_err = send_search_entry( op, &rs );
892 case LDAP_SYNC_DELETE:
893 e_uuid.e_attrs = NULL;
894 e_uuid.e_name = ri->ri_dn;
895 e_uuid.e_nname = ri->ri_ndn;
896 if ( ri->ri_isref && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
897 struct berval bv = BER_BVNULL;
899 rs.sr_err = send_search_reference( op, &rs );
901 rs.sr_err = send_search_entry( op, &rs );
911 syncprov_qstart( syncops *so );
913 /* Play back queued responses */
915 syncprov_qplay( Operation *op, syncops *so )
917 slap_overinst *on = LDAP_SLIST_FIRST(&so->s_op->o_extra)->oe_key;
922 ldap_pvt_thread_mutex_lock( &so->s_mutex );
924 /* Exit loop with mutex held */
927 so->s_res = sr->s_next;
929 so->s_restail = NULL;
930 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
932 if ( !so->s_op->o_abandon ) {
934 if ( sr->s_mode == LDAP_SYNC_NEW_COOKIE ) {
935 SlapReply rs = { REP_INTERMEDIATE };
937 rc = syncprov_sendinfo( op, &rs, LDAP_TAG_SYNC_NEW_COOKIE,
938 &sr->s_info->ri_cookie, 0, NULL, 0 );
940 rc = syncprov_sendresp( op, sr->s_info, so, sr->s_mode );
947 if ( so->s_op->o_abandon )
950 /* Exit loop with mutex held */
951 ldap_pvt_thread_mutex_lock( &so->s_mutex );
956 /* We now only send one change at a time, to prevent one
957 * psearch from hogging all the CPU. Resubmit this task if
958 * there are more responses queued and no errors occurred.
961 if ( rc == 0 && so->s_res ) {
962 syncprov_qstart( so );
964 so->s_flags ^= PS_TASK_QUEUED;
967 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
971 /* task for playing back queued responses */
973 syncprov_qtask( void *ctx, void *arg )
976 OperationBuffer opbuf;
983 op->o_hdr = &opbuf.ob_hdr;
984 op->o_controls = opbuf.ob_controls;
985 memset( op->o_controls, 0, sizeof(opbuf.ob_controls) );
986 op->o_sync = SLAP_CONTROL_IGNORED;
988 *op->o_hdr = *so->s_op->o_hdr;
990 op->o_tmpmemctx = slap_sl_mem_create(SLAP_SLAB_SIZE, SLAP_SLAB_STACK, ctx, 1);
991 op->o_tmpmfuncs = &slap_sl_mfuncs;
992 op->o_threadctx = ctx;
994 /* syncprov_qplay expects a fake db */
995 be = *so->s_op->o_bd;
996 be.be_flags |= SLAP_DBFLAG_OVERLAY;
998 LDAP_SLIST_FIRST(&op->o_extra) = NULL;
999 op->o_callback = NULL;
1001 rc = syncprov_qplay( op, so );
1003 /* decrement use count... */
1004 syncprov_free_syncop( so, 1 );
1009 /* Start the task to play back queued psearch responses */
1011 syncprov_qstart( syncops *so )
1013 so->s_flags |= PS_TASK_QUEUED;
1015 ldap_pvt_thread_pool_submit( &connection_pool,
1016 syncprov_qtask, so );
1019 /* Queue a persistent search response */
1021 syncprov_qresp( opcookie *opc, syncops *so, int mode )
1026 struct berval csn = opc->sctxcsn;
1028 sr = ch_malloc( sizeof( syncres ));
1031 if ( !opc->ssres.s_info ) {
1033 srsize = sizeof( resinfo );
1035 srsize += csn.bv_len + 1;
1039 ri = ch_malloc( srsize );
1040 ri->ri_dn = opc->se->e_name;
1041 ri->ri_ndn = opc->se->e_nname;
1042 a = attr_find( opc->se->e_attrs, slap_schema.si_ad_entryUUID );
1044 ri->ri_uuid = a->a_nvals[0];
1046 ri->ri_uuid.bv_len = 0;
1048 ri->ri_csn.bv_val = (char *)(ri + 1);
1049 ri->ri_csn.bv_len = csn.bv_len;
1050 memcpy( ri->ri_csn.bv_val, csn.bv_val, csn.bv_len );
1051 ri->ri_csn.bv_val[csn.bv_len] = '\0';
1053 ri->ri_csn.bv_val = NULL;
1056 srsize += opc->suuid.bv_len +
1057 opc->sdn.bv_len + 1 + opc->sndn.bv_len + 1;
1058 ri = ch_malloc( srsize );
1059 ri->ri_dn.bv_val = (char *)(ri + 1);
1060 ri->ri_dn.bv_len = opc->sdn.bv_len;
1061 ri->ri_ndn.bv_val = lutil_strcopy( ri->ri_dn.bv_val,
1062 opc->sdn.bv_val ) + 1;
1063 ri->ri_ndn.bv_len = opc->sndn.bv_len;
1064 ri->ri_uuid.bv_val = lutil_strcopy( ri->ri_ndn.bv_val,
1065 opc->sndn.bv_val ) + 1;
1066 ri->ri_uuid.bv_len = opc->suuid.bv_len;
1067 AC_MEMCPY( ri->ri_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1069 ri->ri_csn.bv_val = ri->ri_uuid.bv_val + ri->ri_uuid.bv_len;
1070 memcpy( ri->ri_csn.bv_val, csn.bv_val, csn.bv_len );
1071 ri->ri_csn.bv_val[csn.bv_len] = '\0';
1073 ri->ri_csn.bv_val = NULL;
1076 ri->ri_list = &opc->ssres;
1078 ri->ri_csn.bv_len = csn.bv_len;
1079 ri->ri_isref = opc->sreference;
1080 BER_BVZERO( &ri->ri_cookie );
1081 ldap_pvt_thread_mutex_init( &ri->ri_mutex );
1083 opc->ssres.s_info = ri;
1085 ri = opc->ssres.s_info;
1087 ldap_pvt_thread_mutex_lock( &ri->ri_mutex );
1088 sr->s_rilist = ri->ri_list;
1090 if ( mode == LDAP_SYNC_NEW_COOKIE && BER_BVISNULL( &ri->ri_cookie )) {
1091 syncprov_info_t *si = opc->son->on_bi.bi_private;
1093 slap_compose_sync_cookie( NULL, &ri->ri_cookie, si->si_ctxcsn,
1094 so->s_rid, slap_serverID ? slap_serverID : -1);
1096 ldap_pvt_thread_mutex_unlock( &ri->ri_mutex );
1098 ldap_pvt_thread_mutex_lock( &so->s_mutex );
1102 so->s_restail->s_next = sr;
1106 /* If the base of the psearch was modified, check it next time round */
1107 if ( so->s_flags & PS_WROTE_BASE ) {
1108 so->s_flags ^= PS_WROTE_BASE;
1109 so->s_flags |= PS_FIND_BASE;
1111 if (( so->s_flags & (PS_IS_DETACHED|PS_TASK_QUEUED)) == PS_IS_DETACHED ) {
1112 syncprov_qstart( so );
1114 ldap_pvt_thread_mutex_unlock( &so->s_mutex );
1115 return LDAP_SUCCESS;
1119 syncprov_drop_psearch( syncops *so, int lock )
1121 if ( so->s_flags & PS_IS_DETACHED ) {
1123 ldap_pvt_thread_mutex_lock( &so->s_op->o_conn->c_mutex );
1124 so->s_op->o_conn->c_n_ops_executing--;
1125 so->s_op->o_conn->c_n_ops_completed++;
1126 LDAP_STAILQ_REMOVE( &so->s_op->o_conn->c_ops, so->s_op, Operation,
1129 ldap_pvt_thread_mutex_unlock( &so->s_op->o_conn->c_mutex );
1131 return syncprov_free_syncop( so, 0 );
1135 syncprov_ab_cleanup( Operation *op, SlapReply *rs )
1137 slap_callback *sc = op->o_callback;
1138 op->o_callback = sc->sc_next;
1139 syncprov_drop_psearch( sc->sc_private, 0 );
1140 op->o_tmpfree( sc, op->o_tmpmemctx );
1145 syncprov_op_abandon( Operation *op, SlapReply *rs )
1147 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1148 syncprov_info_t *si = on->on_bi.bi_private;
1149 syncops *so = NULL, **sop;
1151 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1152 for ( sop=&si->si_ops; (so = *sop); sop = &(*sop)->s_next ) {
1153 if ( so->s_op->o_connid == op->o_connid &&
1154 so->s_op->o_msgid == op->orn_msgid ) {
1155 so->s_op->o_abandon = 1;
1160 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1162 /* Is this really a Cancel exop? */
1163 if ( op->o_tag != LDAP_REQ_ABANDON ) {
1164 so->s_op->o_cancel = SLAP_CANCEL_ACK;
1165 rs->sr_err = LDAP_CANCELLED;
1166 send_ldap_result( so->s_op, rs );
1167 if ( so->s_flags & PS_IS_DETACHED ) {
1169 cb = op->o_tmpcalloc( 1, sizeof(slap_callback), op->o_tmpmemctx );
1170 cb->sc_cleanup = syncprov_ab_cleanup;
1171 cb->sc_next = op->o_callback;
1172 cb->sc_private = so;
1173 op->o_callback = cb;
1174 return SLAP_CB_CONTINUE;
1177 syncprov_drop_psearch( so, 0 );
1179 return SLAP_CB_CONTINUE;
1182 /* Find which persistent searches are affected by this operation */
1184 syncprov_matchops( Operation *op, opcookie *opc, int saveit )
1186 slap_overinst *on = opc->son;
1187 syncprov_info_t *si = on->on_bi.bi_private;
1194 struct berval newdn;
1196 BackendDB *b0 = op->o_bd, db;
1198 fc.fdn = &op->o_req_ndn;
1199 /* compute new DN */
1200 if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1202 if ( op->orr_nnewSup ) pdn = *op->orr_nnewSup;
1203 else dnParent( fc.fdn, &pdn );
1204 build_new_dn( &newdn, &pdn, &op->orr_nnewrdn, op->o_tmpmemctx );
1208 if ( op->o_tag != LDAP_REQ_ADD ) {
1209 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1213 rc = overlay_entry_get_ov( op, fc.fdn, NULL, NULL, 0, &e, on );
1214 /* If we're sending responses now, make a copy and unlock the DB */
1215 if ( e && !saveit ) {
1217 opc->se = entry_dup( e );
1218 overlay_entry_release_ov( op, e, 0, on );
1229 opc->se = entry_dup( e );
1234 if ( saveit || op->o_tag == LDAP_REQ_ADD ) {
1235 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1236 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1237 opc->sreference = is_entry_referral( e );
1238 a = attr_find( e->e_attrs, slap_schema.si_ad_entryUUID );
1240 ber_dupbv_x( &opc->suuid, &a->a_nvals[0], op->o_tmpmemctx );
1241 } else if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
1242 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1243 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1244 ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
1245 ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
1248 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1249 for (pss = &si->si_ops; *pss; pss = gonext ? &(*pss)->s_next : pss)
1255 syncops *snext, *ss = *pss;
1258 if ( ss->s_op->o_abandon )
1261 /* Don't send ops back to the originator */
1262 if ( opc->osid > 0 && opc->osid == ss->s_sid ) {
1263 Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping original sid %03x\n",
1268 /* Don't send ops back to the messenger */
1269 if ( opc->rsid > 0 && opc->rsid == ss->s_sid ) {
1270 Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping relayed sid %03x\n",
1280 /* If the base of the search is missing, signal a refresh */
1281 rc = syncprov_findbase( op, &fc );
1282 if ( rc != LDAP_SUCCESS ) {
1283 SlapReply rs = {REP_RESULT};
1284 send_ldap_error( ss->s_op, &rs, LDAP_SYNC_REFRESH_REQUIRED,
1285 "search base has changed" );
1287 if ( syncprov_drop_psearch( ss, 1 ) )
1293 /* If we're sending results now, look for this op in old matches */
1297 /* Did we modify the search base? */
1298 if ( dn_match( &op->o_req_ndn, &ss->s_base )) {
1299 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1300 ss->s_flags |= PS_WROTE_BASE;
1301 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1304 for ( sm=opc->smatches, old=(syncmatches *)&opc->smatches; sm;
1305 old=sm, sm=sm->sm_next ) {
1306 if ( sm->sm_op == ss ) {
1308 old->sm_next = sm->sm_next;
1309 op->o_tmpfree( sm, op->o_tmpmemctx );
1316 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1319 oh.oh_conn = ss->s_op->o_conn;
1320 oh.oh_connid = ss->s_op->o_connid;
1321 op2.o_bd = op->o_bd->bd_self;
1323 op2.o_extra = op->o_extra;
1324 op2.o_callback = NULL;
1325 if (ss->s_flags & PS_FIX_FILTER) {
1326 /* Skip the AND/GE clause that we stuck on in front. We
1327 would lose deletes/mods that happen during the refresh
1328 phase otherwise (ITS#6555) */
1329 op2.ors_filter = ss->s_op->ors_filter->f_and->f_next;
1331 rc = test_filter( &op2, e, op2.ors_filter );
1332 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1335 Debug( LDAP_DEBUG_TRACE, "syncprov_matchops: sid %03x fscope %d rc %d\n",
1336 ss->s_sid, fc.fscope, rc );
1338 /* check if current o_req_dn is in scope and matches filter */
1339 if ( fc.fscope && rc == LDAP_COMPARE_TRUE ) {
1341 sm = op->o_tmpalloc( sizeof(syncmatches), op->o_tmpmemctx );
1342 sm->sm_next = opc->smatches;
1344 ldap_pvt_thread_mutex_lock( &ss->s_mutex );
1346 ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
1349 /* if found send UPDATE else send ADD */
1350 syncprov_qresp( opc, ss,
1351 found ? LDAP_SYNC_MODIFY : LDAP_SYNC_ADD );
1353 } else if ( !saveit && found ) {
1355 syncprov_qresp( opc, ss, LDAP_SYNC_DELETE );
1356 } else if ( !saveit ) {
1357 syncprov_qresp( opc, ss, LDAP_SYNC_NEW_COOKIE );
1359 if ( !saveit && found ) {
1360 /* Decrement s_inuse, was incremented when called
1361 * with saveit == TRUE
1364 if ( syncprov_free_syncop( ss, 0 ) ) {
1370 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1372 if ( op->o_tag != LDAP_REQ_ADD && e ) {
1373 if ( !SLAP_ISOVERLAY( op->o_bd )) {
1377 overlay_entry_release_ov( op, e, 0, on );
1381 if ( opc->ssres.s_info )
1382 free_resinfo( &opc->ssres );
1384 entry_free( opc->se );
1387 op->o_tmpfree( fc.fdn->bv_val, op->o_tmpmemctx );
1393 syncprov_op_cleanup( Operation *op, SlapReply *rs )
1395 slap_callback *cb = op->o_callback;
1396 opcookie *opc = cb->sc_private;
1397 slap_overinst *on = opc->son;
1398 syncprov_info_t *si = on->on_bi.bi_private;
1399 syncmatches *sm, *snext;
1402 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1403 if ( si->si_active )
1405 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1407 for (sm = opc->smatches; sm; sm=snext) {
1408 snext = sm->sm_next;
1409 syncprov_free_syncop( sm->sm_op, 1 );
1410 op->o_tmpfree( sm, op->o_tmpmemctx );
1413 /* Remove op from lock table */
1416 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
1417 mt->mt_mods = mt->mt_mods->mi_next;
1418 /* If there are more, promote the next one */
1419 if ( mt->mt_mods ) {
1420 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1422 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
1423 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
1424 avl_delete( &si->si_mods, mt, sp_avl_cmp );
1425 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
1426 ldap_pvt_thread_mutex_destroy( &mt->mt_mutex );
1427 ch_free( mt->mt_dn.bv_val );
1431 if ( !BER_BVISNULL( &opc->suuid ))
1432 op->o_tmpfree( opc->suuid.bv_val, op->o_tmpmemctx );
1433 if ( !BER_BVISNULL( &opc->sndn ))
1434 op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
1435 if ( !BER_BVISNULL( &opc->sdn ))
1436 op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
1437 op->o_callback = cb->sc_next;
1438 op->o_tmpfree(cb, op->o_tmpmemctx);
1444 syncprov_checkpoint( Operation *op, slap_overinst *on )
1446 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
1449 SlapReply rsm = {REP_RESULT};
1450 slap_callback cb = {0};
1455 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1458 for ( i=0; i<si->si_numcsns; i++ ) {
1459 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1462 mod.sml_numvals = si->si_numcsns;
1463 mod.sml_values = si->si_ctxcsn;
1464 mod.sml_nvalues = NULL;
1465 mod.sml_desc = slap_schema.si_ad_contextCSN;
1466 mod.sml_op = LDAP_MOD_REPLACE;
1467 mod.sml_flags = SLAP_MOD_INTERNAL;
1468 mod.sml_next = NULL;
1470 cb.sc_response = slap_null_cb;
1472 opm.o_tag = LDAP_REQ_MODIFY;
1473 opm.o_callback = &cb;
1474 opm.orm_modlist = &mod;
1475 opm.orm_no_opattrs = 1;
1476 if ( SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1477 be = *on->on_info->oi_origdb;
1480 opm.o_req_dn = si->si_contextdn;
1481 opm.o_req_ndn = si->si_contextdn;
1482 bi = opm.o_bd->bd_info;
1483 opm.o_bd->bd_info = on->on_info->oi_orig;
1484 opm.o_managedsait = SLAP_CONTROL_NONCRITICAL;
1485 opm.o_no_schema_check = 1;
1486 opm.o_bd->be_modify( &opm, &rsm );
1488 if ( rsm.sr_err == LDAP_NO_SUCH_OBJECT &&
1489 SLAP_SYNC_SUBENTRY( opm.o_bd )) {
1491 char txtbuf[SLAP_TEXT_BUFLEN];
1492 size_t textlen = sizeof txtbuf;
1493 Entry *e = slap_create_context_csn_entry( opm.o_bd, NULL );
1494 rs_reinit( &rsm, REP_RESULT );
1495 slap_mods2entry( &mod, &e, 0, 1, &text, txtbuf, textlen);
1497 opm.o_bd->be_add( &opm, &rsm );
1498 if ( e == opm.ora_e )
1499 be_entry_release_w( &opm, opm.ora_e );
1501 opm.o_bd->bd_info = bi;
1503 if ( mod.sml_next != NULL ) {
1504 slap_mods_free( mod.sml_next, 1 );
1507 for ( i=0; i<si->si_numcsns; i++ ) {
1508 assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
1514 syncprov_add_slog( Operation *op )
1516 opcookie *opc = op->o_callback->sc_private;
1517 slap_overinst *on = opc->son;
1518 syncprov_info_t *si = on->on_bi.bi_private;
1524 if ( BER_BVISEMPTY( &op->o_csn ) ) {
1525 /* During the syncrepl refresh phase we can receive operations
1526 * without a csn. We cannot reliably determine the consumers
1527 * state with respect to such operations, so we ignore them and
1528 * wipe out anything in the log if we see them.
1530 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1531 while ( se = sl->sl_head ) {
1532 sl->sl_head = se->se_next;
1537 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1541 /* Allocate a record. UUIDs are not NUL-terminated. */
1542 se = ch_malloc( sizeof( slog_entry ) + opc->suuid.bv_len +
1543 op->o_csn.bv_len + 1 );
1545 se->se_tag = op->o_tag;
1547 se->se_uuid.bv_val = (char *)(&se[1]);
1548 AC_MEMCPY( se->se_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
1549 se->se_uuid.bv_len = opc->suuid.bv_len;
1551 se->se_csn.bv_val = se->se_uuid.bv_val + opc->suuid.bv_len;
1552 AC_MEMCPY( se->se_csn.bv_val, op->o_csn.bv_val, op->o_csn.bv_len );
1553 se->se_csn.bv_val[op->o_csn.bv_len] = '\0';
1554 se->se_csn.bv_len = op->o_csn.bv_len;
1555 se->se_sid = slap_parse_csn_sid( &se->se_csn );
1557 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
1558 if ( sl->sl_head ) {
1559 /* Keep the list in csn order. */
1560 if ( ber_bvcmp( &sl->sl_tail->se_csn, &se->se_csn ) <= 0 ) {
1561 sl->sl_tail->se_next = se;
1566 for ( sep = &sl->sl_head; *sep; sep = &(*sep)->se_next ) {
1567 if ( ber_bvcmp( &se->se_csn, &(*sep)->se_csn ) < 0 ) {
1577 if ( !sl->sl_mincsn ) {
1579 sl->sl_mincsn = ch_malloc( 2*sizeof( struct berval ));
1580 sl->sl_sids = ch_malloc( sizeof( int ));
1581 sl->sl_sids[0] = se->se_sid;
1582 ber_dupbv( sl->sl_mincsn, &se->se_csn );
1583 BER_BVZERO( &sl->sl_mincsn[1] );
1587 while ( sl->sl_num > sl->sl_size ) {
1590 sl->sl_head = se->se_next;
1591 for ( i=0; i<sl->sl_numcsns; i++ )
1592 if ( sl->sl_sids[i] >= se->se_sid )
1594 if ( i == sl->sl_numcsns || sl->sl_sids[i] != se->se_sid ) {
1595 slap_insert_csn_sids( (struct sync_cookie *)sl,
1596 i, se->se_sid, &se->se_csn );
1598 ber_bvreplace( &sl->sl_mincsn[i], &se->se_csn );
1603 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1607 /* Just set a flag if we found the matching entry */
1609 playlog_cb( Operation *op, SlapReply *rs )
1611 if ( rs->sr_type == REP_SEARCH ) {
1612 op->o_callback->sc_private = (void *)1;
1617 /* enter with sl->sl_mutex locked, release before returning */
1619 syncprov_playlog( Operation *op, SlapReply *rs, sessionlog *sl,
1620 sync_control *srs, BerVarray ctxcsn, int numcsns, int *sids )
1622 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1624 int i, j, ndel, num, nmods, mmods;
1625 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
1627 struct berval delcsn[2];
1629 if ( !sl->sl_num ) {
1630 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1638 uuids = op->o_tmpalloc( (num+1) * sizeof( struct berval ) +
1639 num * UUID_LEN, op->o_tmpmemctx );
1640 uuids[0].bv_val = (char *)(uuids + num + 1);
1642 delcsn[0].bv_len = 0;
1643 delcsn[0].bv_val = cbuf;
1644 BER_BVZERO(&delcsn[1]);
1646 /* Make a copy of the relevant UUIDs. Put the Deletes up front
1647 * and everything else at the end. Do this first so we can
1648 * unlock the list mutex.
1650 Debug( LDAP_DEBUG_SYNC, "srs csn %s\n",
1651 srs->sr_state.ctxcsn[0].bv_val, 0, 0 );
1652 for ( se=sl->sl_head; se; se=se->se_next ) {
1654 Debug( LDAP_DEBUG_SYNC, "log csn %s\n", se->se_csn.bv_val, 0, 0 );
1656 for ( k=0; k<srs->sr_state.numcsns; k++ ) {
1657 if ( se->se_sid == srs->sr_state.sids[k] ) {
1658 ndel = ber_bvcmp( &se->se_csn, &srs->sr_state.ctxcsn[k] );
1663 Debug( LDAP_DEBUG_SYNC, "cmp %d, too old\n", ndel, 0, 0 );
1667 for ( k=0; k<numcsns; k++ ) {
1668 if ( se->se_sid == sids[k] ) {
1669 ndel = ber_bvcmp( &se->se_csn, &ctxcsn[k] );
1674 Debug( LDAP_DEBUG_SYNC, "cmp %d, too new\n", ndel, 0, 0 );
1677 if ( se->se_tag == LDAP_REQ_DELETE ) {
1680 AC_MEMCPY( cbuf, se->se_csn.bv_val, se->se_csn.bv_len );
1681 delcsn[0].bv_len = se->se_csn.bv_len;
1682 delcsn[0].bv_val[delcsn[0].bv_len] = '\0';
1684 if ( se->se_tag == LDAP_REQ_ADD )
1689 uuids[j].bv_val = uuids[0].bv_val + (j * UUID_LEN);
1690 AC_MEMCPY(uuids[j].bv_val, se->se_uuid.bv_val, UUID_LEN);
1691 uuids[j].bv_len = UUID_LEN;
1693 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
1697 /* Zero out unused slots */
1698 for ( i=ndel; i < num - nmods; i++ )
1699 uuids[i].bv_len = 0;
1701 /* Mods must be validated to see if they belong in this delete set.
1705 /* Strip any duplicates */
1706 for ( i=0; i<nmods; i++ ) {
1707 for ( j=0; j<ndel; j++ ) {
1708 if ( bvmatch( &uuids[j], &uuids[num - 1 - i] )) {
1709 uuids[num - 1 - i].bv_len = 0;
1714 if ( uuids[num - 1 - i].bv_len == 0 ) continue;
1715 for ( j=0; j<i; j++ ) {
1716 if ( bvmatch( &uuids[num - 1 - j], &uuids[num - 1 - i] )) {
1717 uuids[num - 1 - i].bv_len = 0;
1728 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
1729 slap_callback cb = {0};
1733 fop.o_sync_mode = 0;
1734 fop.o_callback = &cb;
1735 fop.ors_limit = NULL;
1736 fop.ors_tlimit = SLAP_NO_LIMIT;
1737 fop.ors_attrs = slap_anlist_all_attributes;
1738 fop.ors_attrsonly = 0;
1739 fop.o_managedsait = SLAP_CONTROL_CRITICAL;
1741 af.f_choice = LDAP_FILTER_AND;
1744 mf.f_choice = LDAP_FILTER_EQUALITY;
1746 mf.f_av_desc = slap_schema.si_ad_entryUUID;
1747 mf.f_next = fop.ors_filter;
1749 fop.ors_filter = ⁡
1751 cb.sc_response = playlog_cb;
1752 fop.o_bd->bd_info = (BackendInfo *)on->on_info;
1754 for ( i=ndel; i<num; i++ ) {
1755 if ( uuids[i].bv_len != 0 ) {
1756 SlapReply frs = { REP_RESULT };
1758 mf.f_av_value = uuids[i];
1759 cb.sc_private = NULL;
1761 rc = fop.o_bd->be_search( &fop, &frs );
1763 /* If entry was not found, add to delete list */
1764 if ( !cb.sc_private ) {
1765 uuids[ndel++] = uuids[i];
1769 fop.o_bd->bd_info = (BackendInfo *)on;
1772 struct berval cookie;
1774 if ( delcsn[0].bv_len ) {
1775 slap_compose_sync_cookie( op, &cookie, delcsn, srs->sr_state.rid,
1776 slap_serverID ? slap_serverID : -1 );
1778 Debug( LDAP_DEBUG_SYNC, "syncprov_playlog: cookie=%s\n", cookie.bv_val, 0, 0 );
1781 uuids[ndel].bv_val = NULL;
1782 syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET,
1783 delcsn[0].bv_len ? &cookie : NULL, 0, uuids, 1 );
1784 if ( delcsn[0].bv_len ) {
1785 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
1788 op->o_tmpfree( uuids, op->o_tmpmemctx );
1792 syncprov_op_response( Operation *op, SlapReply *rs )
1794 opcookie *opc = op->o_callback->sc_private;
1795 slap_overinst *on = opc->son;
1796 syncprov_info_t *si = on->on_bi.bi_private;
1799 if ( rs->sr_err == LDAP_SUCCESS )
1801 struct berval maxcsn;
1802 char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
1803 int do_check = 0, have_psearches, foundit, csn_changed = 0;
1805 ldap_pvt_thread_mutex_lock( &si->si_resp_mutex );
1807 /* Update our context CSN */
1809 maxcsn.bv_val = cbuf;
1810 maxcsn.bv_len = sizeof(cbuf);
1811 ldap_pvt_thread_rdwr_wlock( &si->si_csn_rwlock );
1813 slap_get_commit_csn( op, &maxcsn, &foundit );
1814 if ( BER_BVISEMPTY( &maxcsn ) && SLAP_GLUE_SUBORDINATE( op->o_bd )) {
1815 /* syncrepl queues the CSN values in the db where
1816 * it is configured , not where the changes are made.
1817 * So look for a value in the glue db if we didn't
1818 * find any in this db.
1820 BackendDB *be = op->o_bd;
1821 op->o_bd = select_backend( &be->be_nsuffix[0], 1);
1822 maxcsn.bv_val = cbuf;
1823 maxcsn.bv_len = sizeof(cbuf);
1824 slap_get_commit_csn( op, &maxcsn, &foundit );
1827 if ( !BER_BVISEMPTY( &maxcsn ) ) {
1830 Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
1831 assert( !syn->ssyn_validate( syn, &maxcsn ));
1833 sid = slap_parse_csn_sid( &maxcsn );
1834 for ( i=0; i<si->si_numcsns; i++ ) {
1835 if ( sid < si->si_sids[i] )
1837 if ( sid == si->si_sids[i] ) {
1838 if ( ber_bvcmp( &maxcsn, &si->si_ctxcsn[i] ) > 0 ) {
1839 ber_bvreplace( &si->si_ctxcsn[i], &maxcsn );
1845 /* It's a new SID for us */
1846 if ( i == si->si_numcsns || sid != si->si_sids[i] ) {
1847 slap_insert_csn_sids((struct sync_cookie *)&(si->si_ctxcsn),
1853 /* Don't do any processing for consumer contextCSN updates */
1854 if ( op->o_dont_replicate ) {
1855 if ( op->o_tag == LDAP_REQ_MODIFY &&
1856 op->orm_modlist->sml_op == LDAP_MOD_REPLACE &&
1857 op->orm_modlist->sml_desc == slap_schema.si_ad_contextCSN ) {
1858 /* Catch contextCSN updates from syncrepl. We have to look at
1859 * all the attribute values, as there may be more than one csn
1860 * that changed, and only one can be passed in the csn queue.
1862 Modifications *mod = op->orm_modlist;
1866 for ( i=0; i<mod->sml_numvals; i++ ) {
1867 sid = slap_parse_csn_sid( &mod->sml_values[i] );
1868 for ( j=0; j<si->si_numcsns; j++ ) {
1869 if ( sid < si->si_sids[j] )
1871 if ( sid == si->si_sids[j] ) {
1872 if ( ber_bvcmp( &mod->sml_values[i], &si->si_ctxcsn[j] ) > 0 ) {
1873 ber_bvreplace( &si->si_ctxcsn[j], &mod->sml_values[i] );
1880 if ( j == si->si_numcsns || sid != si->si_sids[j] ) {
1881 slap_insert_csn_sids( (struct sync_cookie *)&si->si_ctxcsn,
1882 j, sid, &mod->sml_values[i] );
1888 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1890 if ( csn_changed ) {
1892 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1893 for ( ss = si->si_ops; ss; ss = ss->s_next ) {
1894 if ( ss->s_op->o_abandon )
1896 /* Send the updated csn to all syncrepl consumers,
1897 * including the server from which it originated.
1898 * The syncrepl consumer and syncprov provider on
1899 * the originating server may be configured to store
1900 * their csn values in different entries.
1902 syncprov_qresp( opc, ss, LDAP_SYNC_NEW_COOKIE );
1904 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1907 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1913 if ( si->si_chkops || si->si_chktime ) {
1914 /* Never checkpoint adding the context entry,
1917 if ( op->o_tag != LDAP_REQ_ADD ||
1918 !dn_match( &op->o_req_ndn, &si->si_contextdn )) {
1919 if ( si->si_chkops && si->si_numops >= si->si_chkops ) {
1923 if ( si->si_chktime &&
1924 (op->o_time - si->si_chklast >= si->si_chktime )) {
1925 if ( si->si_chklast ) {
1927 si->si_chklast = op->o_time;
1934 si->si_dirty = !csn_changed;
1935 ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
1938 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
1939 syncprov_checkpoint( op, on );
1940 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
1943 /* only update consumer ctx if this is a newer csn */
1944 if ( csn_changed ) {
1945 opc->sctxcsn = maxcsn;
1948 /* Handle any persistent searches */
1949 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
1950 have_psearches = ( si->si_ops != NULL );
1951 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
1952 if ( have_psearches ) {
1955 case LDAP_REQ_MODIFY:
1956 case LDAP_REQ_MODRDN:
1957 case LDAP_REQ_EXTENDED:
1958 syncprov_matchops( op, opc, 0 );
1960 case LDAP_REQ_DELETE:
1961 /* for each match in opc->smatches:
1964 for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
1965 if ( sm->sm_op->s_op->o_abandon )
1967 syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_DELETE );
1973 /* Add any log records */
1974 if ( si->si_logs ) {
1975 syncprov_add_slog( op );
1977 leave: ldap_pvt_thread_mutex_unlock( &si->si_resp_mutex );
1979 return SLAP_CB_CONTINUE;
1982 /* We don't use a subentry to store the context CSN any more.
1983 * We expose the current context CSN as an operational attribute
1984 * of the suffix entry.
1987 syncprov_op_compare( Operation *op, SlapReply *rs )
1989 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1990 syncprov_info_t *si = on->on_bi.bi_private;
1991 int rc = SLAP_CB_CONTINUE;
1993 if ( dn_match( &op->o_req_ndn, &si->si_contextdn ) &&
1994 op->oq_compare.rs_ava->aa_desc == slap_schema.si_ad_contextCSN )
1999 e.e_name = si->si_contextdn;
2000 e.e_nname = si->si_contextdn;
2003 a.a_desc = slap_schema.si_ad_contextCSN;
2005 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2007 a.a_vals = si->si_ctxcsn;
2008 a.a_nvals = a.a_vals;
2009 a.a_numvals = si->si_numcsns;
2011 rs->sr_err = access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc,
2012 &op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL );
2013 if ( ! rs->sr_err ) {
2014 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
2015 goto return_results;
2018 if ( get_assert( op ) &&
2019 ( test_filter( op, &e, get_assertion( op ) ) != LDAP_COMPARE_TRUE ) )
2021 rs->sr_err = LDAP_ASSERTION_FAILED;
2022 goto return_results;
2026 rs->sr_err = LDAP_COMPARE_FALSE;
2028 if ( attr_valfind( &a,
2029 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
2030 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
2031 &op->oq_compare.rs_ava->aa_value, NULL, op->o_tmpmemctx ) == 0 )
2033 rs->sr_err = LDAP_COMPARE_TRUE;
2038 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2040 send_ldap_result( op, rs );
2042 if( rs->sr_err == LDAP_COMPARE_FALSE || rs->sr_err == LDAP_COMPARE_TRUE ) {
2043 rs->sr_err = LDAP_SUCCESS;
2052 syncprov_op_mod( Operation *op, SlapReply *rs )
2054 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2055 syncprov_info_t *si = on->on_bi.bi_private;
2058 int have_psearches, cbsize;
2060 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2061 have_psearches = ( si->si_ops != NULL );
2063 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2065 cbsize = sizeof(slap_callback) + sizeof(opcookie) +
2066 (have_psearches ? sizeof(modinst) : 0 );
2068 cb = op->o_tmpcalloc(1, cbsize, op->o_tmpmemctx);
2069 opc = (opcookie *)(cb+1);
2071 cb->sc_response = syncprov_op_response;
2072 cb->sc_cleanup = syncprov_op_cleanup;
2073 cb->sc_private = opc;
2074 cb->sc_next = op->o_callback;
2075 op->o_callback = cb;
2079 if ( op->o_csn.bv_val ) {
2080 opc->osid = slap_parse_csn_sid( &op->o_csn );
2082 if ( op->o_controls ) {
2083 struct sync_cookie *scook =
2084 op->o_controls[slap_cids.sc_LDAPsync];
2086 opc->rsid = scook->sid;
2089 if ( op->o_dont_replicate )
2090 return SLAP_CB_CONTINUE;
2092 /* If there are active persistent searches, lock this operation.
2093 * See seqmod.c for the locking logic on its own.
2095 if ( have_psearches ) {
2096 modtarget *mt, mtdummy;
2099 mi = (modinst *)(opc+1);
2102 /* See if we're already modifying this entry... */
2103 mtdummy.mt_dn = op->o_req_ndn;
2104 ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
2105 mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
2107 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
2108 if ( mt->mt_mods == NULL ) {
2109 /* Cannot reuse this mt, as another thread is about
2110 * to release it in syncprov_op_cleanup.
2112 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2117 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
2118 mt->mt_tail->mi_next = mi;
2120 /* wait for this op to get to head of list */
2121 while ( mt->mt_mods != mi ) {
2122 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2123 /* FIXME: if dynamic config can delete overlays or
2124 * databases we'll have to check for cleanup here.
2125 * Currently it's not an issue because there are
2126 * no dynamic config deletes...
2128 if ( slapd_shutdown )
2129 return SLAPD_ABANDON;
2131 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
2132 ldap_pvt_thread_yield();
2133 ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
2135 /* clean up if the caller is giving up */
2136 if ( op->o_abandon ) {
2138 for ( m2 = mt->mt_mods; m2 && m2->mi_next != mi;
2141 m2->mi_next = mi->mi_next;
2142 if ( mt->mt_tail == mi ) mt->mt_tail = m2;
2144 op->o_tmpfree( cb, op->o_tmpmemctx );
2145 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2146 return SLAPD_ABANDON;
2149 ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
2151 /* Record that we're modifying this entry now */
2152 mt = ch_malloc( sizeof(modtarget) );
2155 ber_dupbv( &mt->mt_dn, &mi->mi_op->o_req_ndn );
2156 ldap_pvt_thread_mutex_init( &mt->mt_mutex );
2157 avl_insert( &si->si_mods, mt, sp_avl_cmp, avl_dup_error );
2158 ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
2163 if (( have_psearches || si->si_logs ) && op->o_tag != LDAP_REQ_ADD )
2164 syncprov_matchops( op, opc, 1 );
2166 return SLAP_CB_CONTINUE;
2170 syncprov_op_extended( Operation *op, SlapReply *rs )
2172 if ( exop_is_write( op ))
2173 return syncprov_op_mod( op, rs );
2175 return SLAP_CB_CONTINUE;
2178 typedef struct searchstate {
2179 slap_overinst *ss_on;
2181 BerVarray ss_ctxcsn;
2184 #define SS_PRESENT 0x01
2185 #define SS_CHANGED 0x02
2189 typedef struct SyncOperationBuffer {
2193 AttributeName sob_extra; /* not always present */
2194 /* Further data allocated here */
2195 } SyncOperationBuffer;
2198 syncprov_detach_op( Operation *op, syncops *so, slap_overinst *on )
2200 SyncOperationBuffer *sopbuf2;
2205 GroupAssertion *g1, *g2;
2207 /* count the search attrs */
2208 for (i=0; op->ors_attrs && !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2209 alen += op->ors_attrs[i].an_name.bv_len + 1;
2211 /* Make a new copy of the operation */
2212 size = offsetof( SyncOperationBuffer, sob_extra ) +
2213 (i ? ( (i+1) * sizeof(AttributeName) + alen) : 0) +
2214 op->o_req_dn.bv_len + 1 +
2215 op->o_req_ndn.bv_len + 1 +
2216 op->o_ndn.bv_len + 1 +
2217 so->s_filterstr.bv_len + 1;
2218 sopbuf2 = ch_calloc( 1, size );
2219 op2 = &sopbuf2->sob_op;
2220 op2->o_hdr = &sopbuf2->sob_hdr;
2221 LDAP_SLIST_FIRST(&op2->o_extra) = &sopbuf2->sob_oe;
2223 /* Copy the fields we care about explicitly, leave the rest alone */
2224 *op2->o_hdr = *op->o_hdr;
2225 op2->o_tag = op->o_tag;
2226 op2->o_time = op->o_time;
2227 op2->o_bd = on->on_info->oi_origdb;
2228 op2->o_request = op->o_request;
2229 op2->o_managedsait = op->o_managedsait;
2230 LDAP_SLIST_FIRST(&op2->o_extra)->oe_key = on;
2231 LDAP_SLIST_NEXT(LDAP_SLIST_FIRST(&op2->o_extra), oe_next) = NULL;
2233 ptr = (char *) sopbuf2 + offsetof( SyncOperationBuffer, sob_extra );
2235 op2->ors_attrs = (AttributeName *) ptr;
2236 ptr = (char *) &op2->ors_attrs[i+1];
2237 for (i=0; !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
2238 op2->ors_attrs[i] = op->ors_attrs[i];
2239 op2->ors_attrs[i].an_name.bv_val = ptr;
2240 ptr = lutil_strcopy( ptr, op->ors_attrs[i].an_name.bv_val ) + 1;
2242 BER_BVZERO( &op2->ors_attrs[i].an_name );
2245 op2->o_authz = op->o_authz;
2246 op2->o_ndn.bv_val = ptr;
2247 ptr = lutil_strcopy(ptr, op->o_ndn.bv_val) + 1;
2248 op2->o_dn = op2->o_ndn;
2249 op2->o_req_dn.bv_len = op->o_req_dn.bv_len;
2250 op2->o_req_dn.bv_val = ptr;
2251 ptr = lutil_strcopy(ptr, op->o_req_dn.bv_val) + 1;
2252 op2->o_req_ndn.bv_len = op->o_req_ndn.bv_len;
2253 op2->o_req_ndn.bv_val = ptr;
2254 ptr = lutil_strcopy(ptr, op->o_req_ndn.bv_val) + 1;
2255 op2->ors_filterstr.bv_val = ptr;
2256 strcpy( ptr, so->s_filterstr.bv_val );
2257 op2->ors_filterstr.bv_len = so->s_filterstr.bv_len;
2259 /* Skip the AND/GE clause that we stuck on in front */
2260 if ( so->s_flags & PS_FIX_FILTER ) {
2261 op2->ors_filter = op->ors_filter->f_and->f_next;
2262 so->s_flags ^= PS_FIX_FILTER;
2264 op2->ors_filter = op->ors_filter;
2266 op2->ors_filter = filter_dup( op2->ors_filter, NULL );
2269 /* Copy any cached group ACLs individually */
2270 op2->o_groups = NULL;
2271 for ( g1=op->o_groups; g1; g1=g1->ga_next ) {
2272 g2 = ch_malloc( sizeof(GroupAssertion) + g1->ga_len );
2274 strcpy( g2->ga_ndn, g1->ga_ndn );
2275 g2->ga_next = op2->o_groups;
2278 /* Don't allow any further group caching */
2279 op2->o_do_not_cache = 1;
2281 /* Add op2 to conn so abandon will find us */
2282 op->o_conn->c_n_ops_executing++;
2283 op->o_conn->c_n_ops_completed--;
2284 LDAP_STAILQ_INSERT_TAIL( &op->o_conn->c_ops, op2, o_next );
2285 so->s_flags |= PS_IS_DETACHED;
2287 /* Prevent anyone else from trying to send a result for this op */
2292 syncprov_search_response( Operation *op, SlapReply *rs )
2294 searchstate *ss = op->o_callback->sc_private;
2295 slap_overinst *on = ss->ss_on;
2296 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2297 sync_control *srs = op->o_controls[slap_cids.sc_LDAPsync];
2299 if ( rs->sr_type == REP_SEARCH || rs->sr_type == REP_SEARCHREF ) {
2301 /* If we got a referral without a referral object, there's
2302 * something missing that we cannot replicate. Just ignore it.
2303 * The consumer will abort because we didn't send the expected
2306 if ( !rs->sr_entry ) {
2307 assert( rs->sr_entry != NULL );
2308 Debug( LDAP_DEBUG_ANY, "bogus referral in context\n",0,0,0 );
2309 return SLAP_CB_CONTINUE;
2311 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryCSN );
2312 if ( a == NULL && rs->sr_operational_attrs != NULL ) {
2313 a = attr_find( rs->sr_operational_attrs, slap_schema.si_ad_entryCSN );
2317 sid = slap_parse_csn_sid( &a->a_nvals[0] );
2319 /* Don't send changed entries back to the originator */
2320 if ( sid == srs->sr_state.sid && srs->sr_state.numcsns ) {
2321 Debug( LDAP_DEBUG_SYNC,
2322 "Entry %s changed by peer, ignored\n",
2323 rs->sr_entry->e_name.bv_val, 0, 0 );
2324 return LDAP_SUCCESS;
2327 /* If not a persistent search */
2329 /* Make sure entry is less than the snapshot'd contextCSN */
2330 for ( i=0; i<ss->ss_numcsns; i++ ) {
2331 if ( sid == ss->ss_sids[i] && ber_bvcmp( &a->a_nvals[0],
2332 &ss->ss_ctxcsn[i] ) > 0 ) {
2333 Debug( LDAP_DEBUG_SYNC,
2334 "Entry %s CSN %s greater than snapshot %s\n",
2335 rs->sr_entry->e_name.bv_val,
2336 a->a_nvals[0].bv_val,
2337 ss->ss_ctxcsn[i].bv_val );
2338 return LDAP_SUCCESS;
2343 /* Don't send old entries twice */
2344 if ( srs->sr_state.ctxcsn ) {
2345 for ( i=0; i<srs->sr_state.numcsns; i++ ) {
2346 if ( sid == srs->sr_state.sids[i] &&
2347 ber_bvcmp( &a->a_nvals[0],
2348 &srs->sr_state.ctxcsn[i] )<= 0 ) {
2349 Debug( LDAP_DEBUG_SYNC,
2350 "Entry %s CSN %s older or equal to ctx %s\n",
2351 rs->sr_entry->e_name.bv_val,
2352 a->a_nvals[0].bv_val,
2353 srs->sr_state.ctxcsn[i].bv_val );
2354 return LDAP_SUCCESS;
2359 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2361 rs->sr_ctrls[1] = NULL;
2362 rs->sr_flags |= REP_CTRLS_MUSTBEFREED;
2363 /* If we're in delta-sync mode, always send a cookie */
2364 if ( si->si_nopres && si->si_usehint && a ) {
2365 struct berval cookie;
2366 slap_compose_sync_cookie( op, &cookie, a->a_nvals, srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
2367 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2368 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 1, &cookie );
2369 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2371 rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
2372 LDAP_SYNC_ADD, rs->sr_ctrls, 0, 0, NULL );
2374 } else if ( rs->sr_type == REP_RESULT && rs->sr_err == LDAP_SUCCESS ) {
2375 struct berval cookie = BER_BVNULL;
2377 if ( ( ss->ss_flags & SS_CHANGED ) &&
2378 ss->ss_ctxcsn && !BER_BVISNULL( &ss->ss_ctxcsn[0] )) {
2379 slap_compose_sync_cookie( op, &cookie, ss->ss_ctxcsn,
2380 srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
2382 Debug( LDAP_DEBUG_SYNC, "syncprov_search_response: cookie=%s\n", cookie.bv_val, 0, 0 );
2385 /* Is this a regular refresh?
2386 * Note: refresh never gets here if there were no changes
2389 rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
2391 rs->sr_ctrls[1] = NULL;
2392 rs->sr_flags |= REP_CTRLS_MUSTBEFREED;
2393 rs->sr_err = syncprov_done_ctrl( op, rs, rs->sr_ctrls,
2394 0, 1, &cookie, ( ss->ss_flags & SS_PRESENT ) ? LDAP_SYNC_REFRESH_PRESENTS :
2395 LDAP_SYNC_REFRESH_DELETES );
2396 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2398 /* It's RefreshAndPersist, transition to Persist phase */
2399 syncprov_sendinfo( op, rs, ( ss->ss_flags & SS_PRESENT ) ?
2400 LDAP_TAG_SYNC_REFRESH_PRESENT : LDAP_TAG_SYNC_REFRESH_DELETE,
2401 ( ss->ss_flags & SS_CHANGED ) ? &cookie : NULL,
2403 if ( !BER_BVISNULL( &cookie ))
2404 op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
2406 /* Detach this Op from frontend control */
2407 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
2409 /* But not if this connection was closed along the way */
2410 if ( op->o_abandon ) {
2411 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2412 /* syncprov_ab_cleanup will free this syncop */
2413 return SLAPD_ABANDON;
2416 ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex );
2417 /* Turn off the refreshing flag */
2418 ss->ss_so->s_flags ^= PS_IS_REFRESHING;
2420 syncprov_detach_op( op, ss->ss_so, on );
2422 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
2424 /* If there are queued responses, fire them off */
2425 if ( ss->ss_so->s_res )
2426 syncprov_qstart( ss->ss_so );
2427 ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
2430 return LDAP_SUCCESS;
2434 return SLAP_CB_CONTINUE;
2438 syncprov_op_search( Operation *op, SlapReply *rs )
2440 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2441 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2443 int gotstate = 0, changed = 0, do_present = 0;
2444 syncops *sop = NULL;
2448 int i, *sids, numcsns;
2449 struct berval mincsn, maxcsn;
2453 if ( !(op->o_sync_mode & SLAP_SYNC_REFRESH) ) return SLAP_CB_CONTINUE;
2455 if ( op->ors_deref & LDAP_DEREF_SEARCHING ) {
2456 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR, "illegal value for derefAliases" );
2460 srs = op->o_controls[slap_cids.sc_LDAPsync];
2462 /* If this is a persistent search, set it up right away */
2463 if ( op->o_sync_mode & SLAP_SYNC_PERSIST ) {
2473 so.s_flags = PS_IS_REFRESHING | PS_FIND_BASE;
2474 /* syncprov_findbase expects to be called as a callback... */
2475 sc.sc_private = &opc;
2477 ldap_pvt_thread_mutex_init( &so.s_mutex );
2478 cb = op->o_callback;
2479 op->o_callback = ≻
2480 rs->sr_err = syncprov_findbase( op, &fc );
2481 op->o_callback = cb;
2482 ldap_pvt_thread_mutex_destroy( &so.s_mutex );
2484 if ( rs->sr_err != LDAP_SUCCESS ) {
2485 send_ldap_result( op, rs );
2488 sop = ch_malloc( sizeof( syncops ));
2490 ldap_pvt_thread_mutex_init( &sop->s_mutex );
2491 sop->s_rid = srs->sr_state.rid;
2492 sop->s_sid = srs->sr_state.sid;
2493 /* set refcount=2 to prevent being freed out from under us
2494 * by abandons that occur while we're running here
2498 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2499 while ( si->si_active ) {
2500 /* Wait for active mods to finish before proceeding, as they
2501 * may already have inspected the si_ops list looking for
2502 * consumers to replicate the change to. Using the log
2503 * doesn't help, as we may finish playing it before the
2504 * active mods gets added to it.
2506 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2507 if ( slapd_shutdown ) {
2509 return SLAPD_ABANDON;
2511 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
2512 ldap_pvt_thread_yield();
2513 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2515 sop->s_next = si->si_ops;
2518 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2521 /* snapshot the ctxcsn */
2522 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2523 numcsns = si->si_numcsns;
2525 ber_bvarray_dup_x( &ctxcsn, si->si_ctxcsn, op->o_tmpmemctx );
2526 sids = op->o_tmpalloc( numcsns * sizeof(int), op->o_tmpmemctx );
2527 for ( i=0; i<numcsns; i++ )
2528 sids[i] = si->si_sids[i];
2533 dirty = si->si_dirty;
2534 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2536 /* If we have a cookie, handle the PRESENT lookups */
2537 if ( srs->sr_state.ctxcsn ) {
2541 /* If we don't have any CSN of our own yet, pretend nothing
2547 if ( !si->si_nopres )
2548 do_present = SS_PRESENT;
2550 /* If there are SIDs we don't recognize in the cookie, drop them */
2551 for (i=0; i<srs->sr_state.numcsns; ) {
2552 for (j=i; j<numcsns; j++) {
2553 if ( srs->sr_state.sids[i] <= sids[j] ) {
2558 if ( j == numcsns || srs->sr_state.sids[i] != sids[j] ) {
2559 char *tmp = srs->sr_state.ctxcsn[i].bv_val;
2560 srs->sr_state.numcsns--;
2561 for ( j=i; j<srs->sr_state.numcsns; j++ ) {
2562 srs->sr_state.ctxcsn[j] = srs->sr_state.ctxcsn[j+1];
2563 srs->sr_state.sids[j] = srs->sr_state.sids[j+1];
2565 srs->sr_state.ctxcsn[j].bv_val = tmp;
2566 srs->sr_state.ctxcsn[j].bv_len = 0;
2572 if (srs->sr_state.numcsns != numcsns) {
2573 /* consumer doesn't have the right number of CSNs */
2574 changed = SS_CHANGED;
2575 if ( srs->sr_state.ctxcsn ) {
2576 ber_bvarray_free_x( srs->sr_state.ctxcsn, op->o_tmpmemctx );
2577 srs->sr_state.ctxcsn = NULL;
2579 if ( srs->sr_state.sids ) {
2580 slap_sl_free( srs->sr_state.sids, op->o_tmpmemctx );
2581 srs->sr_state.sids = NULL;
2583 srs->sr_state.numcsns = 0;
2587 /* Find the smallest CSN which differs from contextCSN */
2590 for ( i=0,j=0; i<srs->sr_state.numcsns; i++ ) {
2592 while ( srs->sr_state.sids[i] != sids[j] ) j++;
2593 if ( BER_BVISEMPTY( &maxcsn ) || ber_bvcmp( &maxcsn,
2594 &srs->sr_state.ctxcsn[i] ) < 0 ) {
2595 maxcsn = srs->sr_state.ctxcsn[i];
2598 newer = ber_bvcmp( &srs->sr_state.ctxcsn[i], &ctxcsn[j] );
2599 /* If our state is newer, tell consumer about changes */
2601 changed = SS_CHANGED;
2602 if ( BER_BVISEMPTY( &mincsn ) || ber_bvcmp( &mincsn,
2603 &srs->sr_state.ctxcsn[i] ) > 0 ) {
2604 mincsn = srs->sr_state.ctxcsn[i];
2607 } else if ( newer > 0 && sids[j] == slap_serverID ) {
2608 /* our state is older, complain to consumer */
2609 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
2610 rs->sr_text = "consumer state is newer than provider!";
2613 syncops **sp = &si->si_ops;
2615 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
2616 while ( *sp != sop )
2617 sp = &(*sp)->s_next;
2619 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
2622 rs->sr_ctrls = NULL;
2623 send_ldap_result( op, rs );
2627 if ( BER_BVISEMPTY( &mincsn )) {
2632 /* If nothing has changed, shortcut it */
2633 if ( !changed && !dirty ) {
2635 no_change: if ( !(op->o_sync_mode & SLAP_SYNC_PERSIST) ) {
2636 LDAPControl *ctrls[2];
2640 syncprov_done_ctrl( op, rs, ctrls, 0, 0,
2641 NULL, LDAP_SYNC_REFRESH_DELETES );
2642 rs->sr_ctrls = ctrls;
2643 rs->sr_err = LDAP_SUCCESS;
2644 send_ldap_result( op, rs );
2645 rs->sr_ctrls = NULL;
2651 /* Do we have a sessionlog for this search? */
2655 ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
2656 /* Are there any log entries, and is the consumer state
2657 * present in the session log?
2659 if ( sl->sl_num > 0 ) {
2661 for ( i=0; i<sl->sl_numcsns; i++ ) {
2662 /* SID not present == new enough */
2663 if ( minsid < sl->sl_sids[i] ) {
2668 if ( minsid == sl->sl_sids[i] ) {
2670 if ( ber_bvcmp( &mincsn, &sl->sl_mincsn[i] ) >= 0 )
2675 /* SID not present == new enough */
2676 if ( i == sl->sl_numcsns )
2681 /* mutex is unlocked in playlog */
2682 syncprov_playlog( op, rs, sl, srs, ctxcsn, numcsns, sids );
2684 ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
2687 /* Is the CSN still present in the database? */
2688 if ( syncprov_findcsn( op, FIND_CSN, &mincsn ) != LDAP_SUCCESS ) {
2689 /* No, so a reload is required */
2690 /* the 2.2 consumer doesn't send this hint */
2691 if ( si->si_usehint && srs->sr_rhint == 0 ) {
2693 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2695 op->o_tmpfree( sids, op->o_tmpmemctx );
2696 rs->sr_err = LDAP_SYNC_REFRESH_REQUIRED;
2697 rs->sr_text = "sync cookie is stale";
2700 if ( srs->sr_state.ctxcsn ) {
2701 ber_bvarray_free_x( srs->sr_state.ctxcsn, op->o_tmpmemctx );
2702 srs->sr_state.ctxcsn = NULL;
2704 if ( srs->sr_state.sids ) {
2705 slap_sl_free( srs->sr_state.sids, op->o_tmpmemctx );
2706 srs->sr_state.sids = NULL;
2708 srs->sr_state.numcsns = 0;
2711 /* If changed and doing Present lookup, send Present UUIDs */
2712 if ( do_present && syncprov_findcsn( op, FIND_PRESENT, 0 ) !=
2715 ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
2717 op->o_tmpfree( sids, op->o_tmpmemctx );
2722 /* No consumer state, assume something has changed */
2723 changed = SS_CHANGED;
2727 /* Append CSN range to search filter, save original filter
2728 * for persistent search evaluation
2731 ldap_pvt_thread_mutex_lock( &sop->s_mutex );
2732 sop->s_filterstr = op->ors_filterstr;
2733 /* correct the refcount that was set to 2 before */
2737 /* If something changed, find the changes */
2738 if ( gotstate && ( changed || dirty ) ) {
2739 Filter *fand, *fava;
2741 fand = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2742 fand->f_choice = LDAP_FILTER_AND;
2743 fand->f_next = NULL;
2744 fava = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
2746 fava->f_choice = LDAP_FILTER_GE;
2747 fava->f_ava = op->o_tmpalloc( sizeof(AttributeAssertion), op->o_tmpmemctx );
2748 fava->f_ava->aa_desc = slap_schema.si_ad_entryCSN;
2749 #ifdef LDAP_COMP_MATCH
2750 fava->f_ava->aa_cf = NULL;
2752 ber_dupbv_x( &fava->f_ava->aa_value, &mincsn, op->o_tmpmemctx );
2753 fava->f_next = op->ors_filter;
2754 op->ors_filter = fand;
2755 filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2757 sop->s_flags |= PS_FIX_FILTER;
2761 ldap_pvt_thread_mutex_unlock( &sop->s_mutex );
2764 /* Let our callback add needed info to returned entries */
2765 cb = op->o_tmpcalloc(1, sizeof(slap_callback)+sizeof(searchstate), op->o_tmpmemctx);
2766 ss = (searchstate *)(cb+1);
2769 ss->ss_flags = do_present | changed;
2770 ss->ss_ctxcsn = ctxcsn;
2771 ss->ss_numcsns = numcsns;
2773 cb->sc_response = syncprov_search_response;
2774 cb->sc_private = ss;
2775 cb->sc_next = op->o_callback;
2776 op->o_callback = cb;
2778 /* If this is a persistent search and no changes were reported during
2779 * the refresh phase, just invoke the response callback to transition
2780 * us into persist phase
2782 if ( !changed && !dirty ) {
2783 rs->sr_err = LDAP_SUCCESS;
2784 rs->sr_nentries = 0;
2785 send_ldap_result( op, rs );
2788 return SLAP_CB_CONTINUE;
2792 syncprov_operational(
2796 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
2797 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2799 /* This prevents generating unnecessarily; frontend will strip
2800 * any statically stored copy.
2802 if ( op->o_sync != SLAP_CONTROL_NONE )
2803 return SLAP_CB_CONTINUE;
2805 if ( rs->sr_entry &&
2806 dn_match( &rs->sr_entry->e_nname, &si->si_contextdn )) {
2808 if ( SLAP_OPATTRS( rs->sr_attr_flags ) ||
2809 ad_inlist( slap_schema.si_ad_contextCSN, rs->sr_attrs )) {
2810 Attribute *a, **ap = NULL;
2812 for ( a=rs->sr_entry->e_attrs; a; a=a->a_next ) {
2813 if ( a->a_desc == slap_schema.si_ad_contextCSN )
2817 ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
2818 if ( si->si_ctxcsn ) {
2820 for ( ap = &rs->sr_operational_attrs; *ap;
2821 ap=&(*ap)->a_next );
2823 a = attr_alloc( slap_schema.si_ad_contextCSN );
2828 if ( rs_entry2modifiable( op, rs, on )) {
2829 a = attr_find( rs->sr_entry->e_attrs,
2830 slap_schema.si_ad_contextCSN );
2832 if ( a->a_nvals != a->a_vals ) {
2833 ber_bvarray_free( a->a_nvals );
2836 ber_bvarray_free( a->a_vals );
2840 attr_valadd( a, si->si_ctxcsn, si->si_ctxcsn, si->si_numcsns );
2842 ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
2845 return SLAP_CB_CONTINUE;
2855 static ConfigDriver sp_cf_gen;
2857 static ConfigTable spcfg[] = {
2858 { "syncprov-checkpoint", "ops> <minutes", 3, 3, 0, ARG_MAGIC|SP_CHKPT,
2859 sp_cf_gen, "( OLcfgOvAt:1.1 NAME 'olcSpCheckpoint' "
2860 "DESC 'ContextCSN checkpoint interval in ops and minutes' "
2861 "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
2862 { "syncprov-sessionlog", "ops", 2, 2, 0, ARG_INT|ARG_MAGIC|SP_SESSL,
2863 sp_cf_gen, "( OLcfgOvAt:1.2 NAME 'olcSpSessionlog' "
2864 "DESC 'Session log size in ops' "
2865 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
2866 { "syncprov-nopresent", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_NOPRES,
2867 sp_cf_gen, "( OLcfgOvAt:1.3 NAME 'olcSpNoPresent' "
2868 "DESC 'Omit Present phase processing' "
2869 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2870 { "syncprov-reloadhint", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_USEHINT,
2871 sp_cf_gen, "( OLcfgOvAt:1.4 NAME 'olcSpReloadHint' "
2872 "DESC 'Observe Reload Hint in Request control' "
2873 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
2874 { NULL, NULL, 0, 0, 0, ARG_IGNORED }
2877 static ConfigOCs spocs[] = {
2878 { "( OLcfgOvOc:1.1 "
2879 "NAME 'olcSyncProvConfig' "
2880 "DESC 'SyncRepl Provider configuration' "
2881 "SUP olcOverlayConfig "
2882 "MAY ( olcSpCheckpoint "
2883 "$ olcSpSessionlog "
2885 "$ olcSpReloadHint "
2887 Cft_Overlay, spcfg },
2892 sp_cf_gen(ConfigArgs *c)
2894 slap_overinst *on = (slap_overinst *)c->bi;
2895 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
2898 if ( c->op == SLAP_CONFIG_EMIT ) {
2899 switch ( c->type ) {
2901 if ( si->si_chkops || si->si_chktime ) {
2903 /* we assume si_chktime is a multiple of 60
2904 * because the parsed value was originally
2905 * multiplied by 60 */
2906 bv.bv_len = snprintf( c->cr_msg, sizeof( c->cr_msg ),
2907 "%d %d", si->si_chkops, si->si_chktime/60 );
2908 if ( bv.bv_len >= sizeof( c->cr_msg ) ) {
2911 bv.bv_val = c->cr_msg;
2912 value_add_one( &c->rvalue_vals, &bv );
2919 if ( si->si_logs ) {
2920 c->value_int = si->si_logs->sl_size;
2926 if ( si->si_nopres ) {
2933 if ( si->si_usehint ) {
2941 } else if ( c->op == LDAP_MOD_DELETE ) {
2942 switch ( c->type ) {
2949 si->si_logs->sl_size = 0;
2951 rc = LDAP_NO_SUCH_ATTRIBUTE;
2954 if ( si->si_nopres )
2957 rc = LDAP_NO_SUCH_ATTRIBUTE;
2960 if ( si->si_usehint )
2963 rc = LDAP_NO_SUCH_ATTRIBUTE;
2968 switch ( c->type ) {
2970 if ( lutil_atoi( &si->si_chkops, c->argv[1] ) != 0 ) {
2971 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint ops # \"%s\"",
2972 c->argv[0], c->argv[1] );
2973 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2974 "%s: %s\n", c->log, c->cr_msg, 0 );
2975 return ARG_BAD_CONF;
2977 if ( si->si_chkops <= 0 ) {
2978 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint ops # \"%d\"",
2979 c->argv[0], si->si_chkops );
2980 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2981 "%s: %s\n", c->log, c->cr_msg, 0 );
2982 return ARG_BAD_CONF;
2984 if ( lutil_atoi( &si->si_chktime, c->argv[2] ) != 0 ) {
2985 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint time \"%s\"",
2986 c->argv[0], c->argv[1] );
2987 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2988 "%s: %s\n", c->log, c->cr_msg, 0 );
2989 return ARG_BAD_CONF;
2991 if ( si->si_chktime <= 0 ) {
2992 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint time \"%d\"",
2993 c->argv[0], si->si_chkops );
2994 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
2995 "%s: %s\n", c->log, c->cr_msg, 0 );
2996 return ARG_BAD_CONF;
2998 si->si_chktime *= 60;
3002 int size = c->value_int;
3005 snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s size %d is negative",
3007 Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
3008 "%s: %s\n", c->log, c->cr_msg, 0 );
3009 return ARG_BAD_CONF;
3013 sl = ch_malloc( sizeof( sessionlog ));
3014 sl->sl_mincsn = NULL;
3018 sl->sl_head = sl->sl_tail = NULL;
3019 ldap_pvt_thread_mutex_init( &sl->sl_mutex );
3026 si->si_nopres = c->value_int;
3029 si->si_usehint = c->value_int;
3035 /* ITS#3456 we cannot run this search on the main thread, must use a
3036 * child thread in order to insure we have a big enough stack.
3043 syncprov_findcsn( ptr, FIND_MAXCSN, 0 );
3048 /* Read any existing contextCSN from the underlying db.
3049 * Then search for any entries newer than that. If no value exists,
3050 * just generate it. Cache whatever result.
3058 slap_overinst *on = (slap_overinst *) be->bd_info;
3059 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3061 Connection conn = { 0 };
3062 OperationBuffer opbuf;
3067 void *thrctx = NULL;
3069 if ( !SLAP_LASTMOD( be )) {
3070 Debug( LDAP_DEBUG_ANY,
3071 "syncprov_db_open: invalid config, lastmod must be enabled\n", 0, 0, 0 );
3075 if ( slapMode & SLAP_TOOL_MODE ) {
3079 rc = overlay_register_control( be, LDAP_CONTROL_SYNC );
3084 thrctx = ldap_pvt_thread_pool_context();
3085 connection_fake_init2( &conn, &opbuf, thrctx, 0 );
3088 op->o_dn = be->be_rootdn;
3089 op->o_ndn = be->be_rootndn;
3091 if ( SLAP_SYNC_SUBENTRY( be )) {
3092 build_new_dn( &si->si_contextdn, be->be_nsuffix,
3093 (struct berval *)&slap_ldapsync_cn_bv, NULL );
3095 si->si_contextdn = be->be_nsuffix[0];
3097 rc = overlay_entry_get_ov( op, &si->si_contextdn, NULL,
3098 slap_schema.si_ad_contextCSN, 0, &e, on );
3101 ldap_pvt_thread_t tid;
3103 a = attr_find( e->e_attrs, slap_schema.si_ad_contextCSN );
3105 ber_bvarray_dup_x( &si->si_ctxcsn, a->a_vals, NULL );
3106 si->si_numcsns = a->a_numvals;
3107 si->si_sids = slap_parse_csn_sids( si->si_ctxcsn, a->a_numvals, NULL );
3108 slap_sort_csn_sids( si->si_ctxcsn, si->si_sids, si->si_numcsns, NULL );
3110 overlay_entry_release_ov( op, e, 0, on );
3111 if ( si->si_ctxcsn && !SLAP_DBCLEAN( be )) {
3112 op->o_tag = LDAP_REQ_SEARCH;
3113 op->o_req_dn = be->be_suffix[0];
3114 op->o_req_ndn = be->be_nsuffix[0];
3115 op->ors_scope = LDAP_SCOPE_SUBTREE;
3116 ldap_pvt_thread_create( &tid, 0, syncprov_db_otask, op );
3117 ldap_pvt_thread_join( tid, NULL );
3121 /* Didn't find a contextCSN, should we generate one? */
3122 if ( !si->si_ctxcsn ) {
3123 char csnbuf[ LDAP_PVT_CSNSTR_BUFSIZE ];
3126 if ( SLAP_SYNC_SHADOW( op->o_bd )) {
3127 /* If we're also a consumer, then don't generate anything.
3128 * Wait for our provider to send it to us, or for a local
3129 * modify if we have multimaster.
3133 csn.bv_val = csnbuf;
3134 csn.bv_len = sizeof( csnbuf );
3135 slap_get_csn( op, &csn, 0 );
3136 value_add_one( &si->si_ctxcsn, &csn );
3138 si->si_sids = ch_malloc( sizeof(int) );
3139 si->si_sids[0] = slap_serverID;
3141 /* make sure we do a checkpoint on close */
3145 /* Initialize the sessionlog mincsn */
3146 if ( si->si_logs && si->si_numcsns ) {
3147 sessionlog *sl = si->si_logs;
3149 ber_bvarray_dup_x( &sl->sl_mincsn, si->si_ctxcsn, NULL );
3150 sl->sl_numcsns = si->si_numcsns;
3151 sl->sl_sids = ch_malloc( si->si_numcsns * sizeof(int) );
3152 for ( i=0; i < si->si_numcsns; i++ )
3153 sl->sl_sids[i] = si->si_sids[i];
3157 op->o_bd->bd_info = (BackendInfo *)on;
3161 /* Write the current contextCSN into the underlying db.
3169 slap_overinst *on = (slap_overinst *) be->bd_info;
3170 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3171 #ifdef SLAP_CONFIG_DELETE
3172 syncops *so, *sonext;
3173 #endif /* SLAP_CONFIG_DELETE */
3175 if ( slapMode & SLAP_TOOL_MODE ) {
3178 if ( si->si_numops ) {
3179 Connection conn = {0};
3180 OperationBuffer opbuf;
3184 thrctx = ldap_pvt_thread_pool_context();
3185 connection_fake_init2( &conn, &opbuf, thrctx, 0 );
3188 op->o_dn = be->be_rootdn;
3189 op->o_ndn = be->be_rootndn;
3190 syncprov_checkpoint( op, on );
3193 #ifdef SLAP_CONFIG_DELETE
3194 if ( !slapd_shutdown ) {
3195 ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
3196 for ( so=si->si_ops, sonext=so; so; so=sonext ) {
3197 SlapReply rs = {REP_RESULT};
3198 rs.sr_err = LDAP_UNAVAILABLE;
3199 send_ldap_result( so->s_op, &rs );
3201 syncprov_drop_psearch( so, 0);
3204 ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
3206 overlay_unregister_control( be, LDAP_CONTROL_SYNC );
3207 #endif /* SLAP_CONFIG_DELETE */
3218 slap_overinst *on = (slap_overinst *)be->bd_info;
3219 syncprov_info_t *si;
3221 if ( SLAP_ISGLOBALOVERLAY( be ) ) {
3222 Debug( LDAP_DEBUG_ANY,
3223 "syncprov must be instantiated within a database.\n",
3228 si = ch_calloc(1, sizeof(syncprov_info_t));
3229 on->on_bi.bi_private = si;
3230 ldap_pvt_thread_rdwr_init( &si->si_csn_rwlock );
3231 ldap_pvt_thread_mutex_init( &si->si_ops_mutex );
3232 ldap_pvt_thread_mutex_init( &si->si_mods_mutex );
3233 ldap_pvt_thread_mutex_init( &si->si_resp_mutex );
3235 csn_anlist[0].an_desc = slap_schema.si_ad_entryCSN;
3236 csn_anlist[0].an_name = slap_schema.si_ad_entryCSN->ad_cname;
3237 csn_anlist[1].an_desc = slap_schema.si_ad_entryUUID;
3238 csn_anlist[1].an_name = slap_schema.si_ad_entryUUID->ad_cname;
3240 uuid_anlist[0].an_desc = slap_schema.si_ad_entryUUID;
3241 uuid_anlist[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
3247 syncprov_db_destroy(
3252 slap_overinst *on = (slap_overinst *)be->bd_info;
3253 syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
3256 if ( si->si_logs ) {
3257 sessionlog *sl = si->si_logs;
3258 slog_entry *se = sl->sl_head;
3261 slog_entry *se_next = se->se_next;
3265 if ( sl->sl_mincsn )
3266 ber_bvarray_free( sl->sl_mincsn );
3268 ch_free( sl->sl_sids );
3270 ldap_pvt_thread_mutex_destroy(&si->si_logs->sl_mutex);
3271 ch_free( si->si_logs );
3273 if ( si->si_ctxcsn )
3274 ber_bvarray_free( si->si_ctxcsn );
3276 ch_free( si->si_sids );
3277 ldap_pvt_thread_mutex_destroy( &si->si_resp_mutex );
3278 ldap_pvt_thread_mutex_destroy( &si->si_mods_mutex );
3279 ldap_pvt_thread_mutex_destroy( &si->si_ops_mutex );
3280 ldap_pvt_thread_rdwr_destroy( &si->si_csn_rwlock );
3287 static int syncprov_parseCtrl (
3293 BerElementBuffer berbuf;
3294 BerElement *ber = (BerElement *)&berbuf;
3297 struct berval cookie = BER_BVNULL;
3301 if ( op->o_sync != SLAP_CONTROL_NONE ) {
3302 rs->sr_text = "Sync control specified multiple times";
3303 return LDAP_PROTOCOL_ERROR;
3306 if ( op->o_pagedresults != SLAP_CONTROL_NONE ) {
3307 rs->sr_text = "Sync control specified with pagedResults control";
3308 return LDAP_PROTOCOL_ERROR;
3311 if ( BER_BVISNULL( &ctrl->ldctl_value ) ) {
3312 rs->sr_text = "Sync control value is absent";
3313 return LDAP_PROTOCOL_ERROR;
3316 if ( BER_BVISEMPTY( &ctrl->ldctl_value ) ) {
3317 rs->sr_text = "Sync control value is empty";
3318 return LDAP_PROTOCOL_ERROR;
3321 /* Parse the control value
3322 * syncRequestValue ::= SEQUENCE {
3327 * refreshAndPersist (3)
3329 * cookie syncCookie OPTIONAL
3333 ber_init2( ber, &ctrl->ldctl_value, 0 );
3335 if ( (tag = ber_scanf( ber, "{i" /*}*/, &mode )) == LBER_ERROR ) {
3336 rs->sr_text = "Sync control : mode decoding error";
3337 return LDAP_PROTOCOL_ERROR;
3341 case LDAP_SYNC_REFRESH_ONLY:
3342 mode = SLAP_SYNC_REFRESH;
3344 case LDAP_SYNC_REFRESH_AND_PERSIST:
3345 mode = SLAP_SYNC_REFRESH_AND_PERSIST;
3348 rs->sr_text = "Sync control : unknown update mode";
3349 return LDAP_PROTOCOL_ERROR;
3352 tag = ber_peek_tag( ber, &len );
3354 if ( tag == LDAP_TAG_SYNC_COOKIE ) {
3355 if (( ber_scanf( ber, /*{*/ "m", &cookie )) == LBER_ERROR ) {
3356 rs->sr_text = "Sync control : cookie decoding error";
3357 return LDAP_PROTOCOL_ERROR;
3359 tag = ber_peek_tag( ber, &len );
3361 if ( tag == LDAP_TAG_RELOAD_HINT ) {
3362 if (( ber_scanf( ber, /*{*/ "b", &rhint )) == LBER_ERROR ) {
3363 rs->sr_text = "Sync control : rhint decoding error";
3364 return LDAP_PROTOCOL_ERROR;
3367 if (( ber_scanf( ber, /*{*/ "}")) == LBER_ERROR ) {
3368 rs->sr_text = "Sync control : decoding error";
3369 return LDAP_PROTOCOL_ERROR;
3371 sr = op->o_tmpcalloc( 1, sizeof(struct sync_control), op->o_tmpmemctx );
3372 sr->sr_rhint = rhint;
3373 if (!BER_BVISNULL(&cookie)) {
3374 ber_dupbv_x( &sr->sr_state.octet_str, &cookie, op->o_tmpmemctx );
3375 /* If parse fails, pretend no cookie was sent */
3376 if ( slap_parse_sync_cookie( &sr->sr_state, op->o_tmpmemctx ) ||
3377 sr->sr_state.rid == -1 ) {
3378 if ( sr->sr_state.ctxcsn ) {
3379 ber_bvarray_free_x( sr->sr_state.ctxcsn, op->o_tmpmemctx );
3380 sr->sr_state.ctxcsn = NULL;
3382 sr->sr_state.numcsns = 0;
3386 op->o_controls[slap_cids.sc_LDAPsync] = sr;
3388 op->o_sync = ctrl->ldctl_iscritical
3389 ? SLAP_CONTROL_CRITICAL
3390 : SLAP_CONTROL_NONCRITICAL;
3392 op->o_sync_mode |= mode; /* o_sync_mode shares o_sync */
3394 return LDAP_SUCCESS;
3397 /* This overlay is set up for dynamic loading via moduleload. For static
3398 * configuration, you'll need to arrange for the slap_overinst to be
3399 * initialized and registered by some other function inside slapd.
3402 static slap_overinst syncprov;
3405 syncprov_initialize()
3409 rc = register_supported_control( LDAP_CONTROL_SYNC,
3410 SLAP_CTRL_SEARCH, NULL,
3411 syncprov_parseCtrl, &slap_cids.sc_LDAPsync );
3412 if ( rc != LDAP_SUCCESS ) {
3413 Debug( LDAP_DEBUG_ANY,
3414 "syncprov_init: Failed to register control %d\n", rc, 0, 0 );
3418 syncprov.on_bi.bi_type = "syncprov";
3419 syncprov.on_bi.bi_db_init = syncprov_db_init;
3420 syncprov.on_bi.bi_db_destroy = syncprov_db_destroy;
3421 syncprov.on_bi.bi_db_open = syncprov_db_open;
3422 syncprov.on_bi.bi_db_close = syncprov_db_close;
3424 syncprov.on_bi.bi_op_abandon = syncprov_op_abandon;
3425 syncprov.on_bi.bi_op_cancel = syncprov_op_abandon;
3427 syncprov.on_bi.bi_op_add = syncprov_op_mod;
3428 syncprov.on_bi.bi_op_compare = syncprov_op_compare;
3429 syncprov.on_bi.bi_op_delete = syncprov_op_mod;
3430 syncprov.on_bi.bi_op_modify = syncprov_op_mod;
3431 syncprov.on_bi.bi_op_modrdn = syncprov_op_mod;
3432 syncprov.on_bi.bi_op_search = syncprov_op_search;
3433 syncprov.on_bi.bi_extended = syncprov_op_extended;
3434 syncprov.on_bi.bi_operational = syncprov_operational;
3436 syncprov.on_bi.bi_cf_ocs = spocs;
3438 generic_filter.f_desc = slap_schema.si_ad_objectClass;
3440 rc = config_register_schema( spcfg, spocs );
3441 if ( rc ) return rc;
3443 return overlay_register( &syncprov );
3446 #if SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC
3448 init_module( int argc, char *argv[] )
3450 return syncprov_initialize();
3452 #endif /* SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC */
3454 #endif /* defined(SLAPD_OVER_SYNCPROV) */