servers/slapd/overlays/syncprov.c - diff

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Diff for /servers/slapd/overlays/syncprov.c between versions 1.56.2.42 and 1.224

version 1.56.2.42, 2007/02/07 01:51:36	version 1.224, 2008/03/20 23:09:24
Line 1	Line 1
/* $OpenLDAP: pkg/ldap/servers/slapd/overlays/syncprov.c,v 1.56.2.41 2007/01/25 12:06:09 hyc Exp $ */	/* $OpenLDAP: pkg/ldap/servers/slapd/overlays/syncprov.c,v 1.223 2008/03/19 23:31:42 hyc Exp $ */
/* syncprov.c - syncrepl provider */	/* syncprov.c - syncrepl provider */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.	/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*	*
* Copyright 2004-2007 The OpenLDAP Foundation.	* Copyright 2004-2008 The OpenLDAP Foundation.
* All rights reserved.	* All rights reserved.
*	*
* Redistribution and use in source and binary forms, with or without	* Redistribution and use in source and binary forms, with or without
Line 59 typedef struct syncops {	Line 59 typedef struct syncops {
ID s_eid; /* entryID of search base */	ID s_eid; /* entryID of search base */
Operation s_op; / search op */	Operation s_op; / search op */
int s_rid;	int s_rid;
	int s_sid;
struct berval s_filterstr;	struct berval s_filterstr;
int s_flags; /* search status */	int s_flags; /* search status */
#define PS_IS_REFRESHING 0x01	#define PS_IS_REFRESHING 0x01
Line 103 typedef struct slog_entry {	Line 104 typedef struct slog_entry {
struct slog_entry *se_next;	struct slog_entry *se_next;
struct berval se_uuid;	struct berval se_uuid;
struct berval se_csn;	struct berval se_csn;
	int se_sid;
ber_tag_t se_tag;	ber_tag_t se_tag;
} slog_entry;	} slog_entry;

Line 118 typedef struct sessionlog {	Line 120 typedef struct sessionlog {
/* The main state for this overlay */	/* The main state for this overlay */
typedef struct syncprov_info_t {	typedef struct syncprov_info_t {
syncops *si_ops;	syncops *si_ops;
struct berval si_ctxcsn; /* ldapsync context */	BerVarray si_ctxcsn; /* ldapsync context */
	int *si_sids;
	int si_numcsns;
int si_chkops; /* checkpointing info */	int si_chkops; /* checkpointing info */
int si_chktime;	int si_chktime;
int si_numops; /* number of ops since last checkpoint */	int si_numops; /* number of ops since last checkpoint */
Line 130 typedef struct syncprov_info_t {	Line 134 typedef struct syncprov_info_t {
ldap_pvt_thread_rdwr_t si_csn_rwlock;	ldap_pvt_thread_rdwr_t si_csn_rwlock;
ldap_pvt_thread_mutex_t si_ops_mutex;	ldap_pvt_thread_mutex_t si_ops_mutex;
ldap_pvt_thread_mutex_t si_mods_mutex;	ldap_pvt_thread_mutex_t si_mods_mutex;
char si_ctxcsnbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
} syncprov_info_t;	} syncprov_info_t;

typedef struct opcookie {	typedef struct opcookie {
Line 401 syncprov_findbase( Operation *op, fbase_	Line 404 syncprov_findbase( Operation *op, fbase_
slap_callback cb = {0};	slap_callback cb = {0};
Operation fop;	Operation fop;
SlapReply frs = { REP_RESULT };	SlapReply frs = { REP_RESULT };
	BackendInfo *bi;
int rc;	int rc;

fc->fss->s_flags ^= PS_FIND_BASE;	fc->fss->s_flags ^= PS_FIND_BASE;
Line 412 syncprov_findbase( Operation *op, fbase_	Line 416 syncprov_findbase( Operation *op, fbase_
fop.o_bd = op->o_bd;	fop.o_bd = op->o_bd;
fop.o_time = op->o_time;	fop.o_time = op->o_time;
fop.o_tincr = op->o_tincr;	fop.o_tincr = op->o_tincr;
	bi = op->o_bd->bd_info;

cb.sc_response = findbase_cb;	cb.sc_response = findbase_cb;
cb.sc_private = fc;	cb.sc_private = fc;
Line 429 syncprov_findbase( Operation *op, fbase_	Line 434 syncprov_findbase( Operation *op, fbase_
fop.ors_filter = &generic_filter;	fop.ors_filter = &generic_filter;
fop.ors_filterstr = generic_filterstr;	fop.ors_filterstr = generic_filterstr;

fop.o_bd->bd_info = on->on_info->oi_orig;	rc = overlay_op_walk( &fop, &frs, op_search, on->on_info, on );
rc = fop.o_bd->be_search( &fop, &frs );	op->o_bd->bd_info = bi;
fop.o_bd->bd_info = (BackendInfo *)on;
} else {	} else {
ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );	ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
fc->fbase = 1;	fc->fbase = 1;
Line 581 syncprov_findcsn( Operation *op, find_cs	Line 585 syncprov_findcsn( Operation *op, find_cs
char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];	char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
struct berval maxcsn;	struct berval maxcsn;
Filter cf;	Filter cf;
#ifdef LDAP_COMP_MATCH	AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
AttributeAssertion eq = { NULL, BER_BVNULL, NULL };
#else
AttributeAssertion eq = { NULL, BER_BVNULL };
#endif
fpres_cookie pcookie;	fpres_cookie pcookie;
sync_control *srs = NULL;	sync_control *srs = NULL;
struct slap_limits_set fc_limits;	struct slap_limits_set fc_limits;
int i, rc = LDAP_SUCCESS, findcsn_retry = 1;	int i, rc = LDAP_SUCCESS, findcsn_retry = 1;
	int maxid = 0;

if ( mode != FIND_MAXCSN ) {	if ( mode != FIND_MAXCSN ) {
srs = op->o_controls[slap_cids.sc_LDAPsync];	srs = op->o_controls[slap_cids.sc_LDAPsync];

if ( srs->sr_state.ctxcsn.bv_len >= LDAP_LUTIL_CSNSTR_BUFSIZE ) {
return LDAP_OTHER;
}
}	}

fop = *op;	fop = *op;
Line 606 syncprov_findcsn( Operation *op, find_cs	Line 603 syncprov_findcsn( Operation *op, find_cs

cf.f_ava = &eq;	cf.f_ava = &eq;
cf.f_av_desc = slap_schema.si_ad_entryCSN;	cf.f_av_desc = slap_schema.si_ad_entryCSN;
	BER_BVZERO( &cf.f_av_value );
cf.f_next = NULL;	cf.f_next = NULL;

fop.o_callback = &cb;	fop.o_callback = &cb;
Line 618 again:	Line 616 again:
switch( mode ) {	switch( mode ) {
case FIND_MAXCSN:	case FIND_MAXCSN:
cf.f_choice = LDAP_FILTER_GE;	cf.f_choice = LDAP_FILTER_GE;
cf.f_av_value = si->si_ctxcsn;	cf.f_av_value = si->si_ctxcsn[0];
fop.ors_filterstr.bv_len = sprintf( buf, "(entryCSN>=%s)",	/* If there are multiple CSNs, use the largest */
cf.f_av_value.bv_val );	for ( i=1; i<si->si_numcsns; i++) {
	if ( ber_bvcmp( &cf.f_av_value, &si->si_ctxcsn[i] ) < 0 ) {
	cf.f_av_value = si->si_ctxcsn[i];
	maxid = i;
	}
	}
	fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
	"(entryCSN>=%s)", cf.f_av_value.bv_val );
	if ( fop.ors_filterstr.bv_len < 0 \|\| fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
	return LDAP_OTHER;
	}
fop.ors_attrsonly = 0;	fop.ors_attrsonly = 0;
fop.ors_attrs = csn_anlist;	fop.ors_attrs = csn_anlist;
fop.ors_slimit = SLAP_NO_LIMIT;	fop.ors_slimit = SLAP_NO_LIMIT;
cb.sc_private = &maxcsn;	cb.sc_private = &maxcsn;
cb.sc_response = findmax_cb;	cb.sc_response = findmax_cb;
strcpy( cbuf, si->si_ctxcsn.bv_val );	strcpy( cbuf, cf.f_av_value.bv_val );
maxcsn.bv_val = cbuf;	maxcsn.bv_val = cbuf;
maxcsn.bv_len = si->si_ctxcsn.bv_len;	maxcsn.bv_len = cf.f_av_value.bv_len;
break;	break;
case FIND_CSN:	case FIND_CSN:
cf.f_av_value = srs->sr_state.ctxcsn;	if ( BER_BVISEMPTY( &cf.f_av_value )) {
	cf.f_av_value = srs->sr_state.ctxcsn[0];
	/* If there are multiple CSNs, use the smallest */
	for ( i=1; i<srs->sr_state.numcsns; i++ ) {
	if ( ber_bvcmp( &cf.f_av_value, &srs->sr_state.ctxcsn[i] )
	> 0 ) {
	cf.f_av_value = srs->sr_state.ctxcsn[i];
	}
	}
	}
/* Look for exact match the first time */	/* Look for exact match the first time */
if ( findcsn_retry ) {	if ( findcsn_retry ) {
cf.f_choice = LDAP_FILTER_EQUALITY;	cf.f_choice = LDAP_FILTER_EQUALITY;
fop.ors_filterstr.bv_len = sprintf( buf, "(entryCSN=%s)",	fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
cf.f_av_value.bv_val );	"(entryCSN=%s)", cf.f_av_value.bv_val );
/* On retry, look for <= */	/* On retry, look for <= */
} else {	} else {
cf.f_choice = LDAP_FILTER_LE;	cf.f_choice = LDAP_FILTER_LE;
fop.ors_limit = &fc_limits;	fop.ors_limit = &fc_limits;
	memset( &fc_limits, 0, sizeof( fc_limits ));
fc_limits.lms_s_unchecked = 1;	fc_limits.lms_s_unchecked = 1;
fop.ors_filterstr.bv_len = sprintf( buf, "(entryCSN<=%s)",	fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
cf.f_av_value.bv_val );	"(entryCSN<=%s)", cf.f_av_value.bv_val );
	}
	if ( fop.ors_filterstr.bv_len < 0 \|\| fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
	return LDAP_OTHER;
}	}
fop.ors_attrsonly = 1;	fop.ors_attrsonly = 1;
fop.ors_attrs = slap_anlist_no_attrs;	fop.ors_attrs = slap_anlist_no_attrs;
Line 675 again:	Line 696 again:
break;	break;
}	}

fop.o_bd->bd_info = on->on_info->oi_orig;	if ( on->on_next )
	fop.o_bd->bd_info = (BackendInfo *)on->on_next;
	else
	fop.o_bd->bd_info = on->on_info->oi_orig;
fop.o_bd->be_search( &fop, &frs );	fop.o_bd->be_search( &fop, &frs );
fop.o_bd->bd_info = (BackendInfo *)on;	fop.o_bd->bd_info = (BackendInfo *)on;

switch( mode ) {	switch( mode ) {
case FIND_MAXCSN:	case FIND_MAXCSN:
strcpy( si->si_ctxcsnbuf, maxcsn.bv_val );	if ( ber_bvcmp( &si->si_ctxcsn[maxid], &maxcsn )) {
si->si_ctxcsn.bv_len = maxcsn.bv_len;	ber_bvreplace( &si->si_ctxcsn[maxid], &maxcsn );
	si->si_numops++; /* ensure a checkpoint */
	}
break;	break;
case FIND_CSN:	case FIND_CSN:
/* If matching CSN was not found, invalidate the context. */	/* If matching CSN was not found, invalidate the context. */
Line 741 syncprov_sendresp( Operation *op, opcook	Line 767 syncprov_sendresp( Operation *op, opcook

SlapReply rs = { REP_SEARCH };	SlapReply rs = { REP_SEARCH };
LDAPControl *ctrls[2];	LDAPControl *ctrls[2];
struct berval cookie;	struct berval cookie, csns[2];
Entry e_uuid = {0};	Entry e_uuid = {0};
Attribute a_uuid = {0};	Attribute a_uuid = {0};

Line 749 syncprov_sendresp( Operation *op, opcook	Line 775 syncprov_sendresp( Operation *op, opcook
return SLAPD_ABANDON;	return SLAPD_ABANDON;

ctrls[1] = NULL;	ctrls[1] = NULL;
slap_compose_sync_cookie( op, &cookie, &opc->sctxcsn, so->s_rid );	csns[0] = opc->sctxcsn;
	BER_BVZERO( &csns[1] );
	slap_compose_sync_cookie( op, &cookie, csns, so->s_rid, so->s_sid );

	Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: cookie=%s\n", cookie.bv_val, 0, 0 );

e_uuid.e_attrs = &a_uuid;	e_uuid.e_attrs = &a_uuid;
a_uuid.a_desc = slap_schema.si_ad_entryUUID;	a_uuid.a_desc = slap_schema.si_ad_entryUUID;
Line 810 syncprov_sendresp( Operation *op, opcook	Line 840 syncprov_sendresp( Operation *op, opcook

/* Play back queued responses */	/* Play back queued responses */
static int	static int
syncprov_qplay( Operation op, slap_overinst on, syncops *so )	syncprov_qplay( Operation op, struct re_s rtask )
{	{
	syncops *so = rtask->arg;
	slap_overinst *on = LDAP_SLIST_FIRST(&so->s_op->o_extra)->oe_key;
syncres *sr;	syncres *sr;
Entry *e;	Entry *e;
opcookie opc;	opcookie opc;
int rc = 0;	int rc = 0;

opc.son = on;	opc.son = on;
op->o_bd->bd_info = (BackendInfo *)on->on_info;

for (;;) {	for (;;) {
ldap_pvt_thread_mutex_lock( &so->s_mutex );	ldap_pvt_thread_mutex_lock( &so->s_mutex );
Line 827 syncprov_qplay( Operation *op, slap_over	Line 858 syncprov_qplay( Operation *op, slap_over
so->s_res = sr->s_next;	so->s_res = sr->s_next;
if ( !so->s_res )	if ( !so->s_res )
so->s_restail = NULL;	so->s_restail = NULL;
ldap_pvt_thread_mutex_unlock( &so->s_mutex );	/* Exit loop with mutex held */

if ( !sr \|\| so->s_op->o_abandon )	if ( !sr \|\| so->s_op->o_abandon )
break;	break;
	ldap_pvt_thread_mutex_unlock( &so->s_mutex );

opc.sdn = sr->s_dn;	opc.sdn = sr->s_dn;
opc.sndn = sr->s_ndn;	opc.sndn = sr->s_ndn;
Line 840 syncprov_qplay( Operation *op, slap_over	Line 871 syncprov_qplay( Operation *op, slap_over
e = NULL;	e = NULL;

if ( sr->s_mode != LDAP_SYNC_DELETE ) {	if ( sr->s_mode != LDAP_SYNC_DELETE ) {
rc = be_entry_get_rw( op, &opc.sndn, NULL, NULL, 0, &e );	rc = overlay_entry_get_ov( op, &opc.sndn, NULL, NULL, 0, &e, on );
if ( rc ) {	if ( rc ) {
Debug( LDAP_DEBUG_SYNC, "syncprov_qplay: failed to get %s, "	Debug( LDAP_DEBUG_SYNC, "syncprov_qplay: failed to get %s, "
"error (%d), ignoring...\n", opc.sndn.bv_val, rc, 0 );	"error (%d), ignoring...\n", opc.sndn.bv_val, rc, 0 );
Line 852 syncprov_qplay( Operation *op, slap_over	Line 883 syncprov_qplay( Operation *op, slap_over
rc = syncprov_sendresp( op, &opc, so, &e, sr->s_mode );	rc = syncprov_sendresp( op, &opc, so, &e, sr->s_mode );

if ( e ) {	if ( e ) {
be_entry_release_rw( op, e, 0 );	overlay_entry_release_ov( op, e, 0, on );
}	}

ch_free( sr );	ch_free( sr );

if ( rc )	if ( rc ) {
	/* Exit loop with mutex held */
	ldap_pvt_thread_mutex_lock( &so->s_mutex );
break;	break;
	}
}	}
op->o_bd->bd_info = (BackendInfo *)on;
	/* wait until we get explicitly scheduled again */
	ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
	ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
	if ( rc == 0 ) {
	ldap_pvt_runqueue_resched( &slapd_rq, rtask, 1 );
	} else {
	/* bail out on any error */
	ldap_pvt_runqueue_remove( &slapd_rq, rtask );
	}
	ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
	ldap_pvt_thread_mutex_unlock( &so->s_mutex );
return rc;	return rc;
}	}

Line 870 syncprov_qtask( void ctx, void arg )	Line 915 syncprov_qtask( void ctx, void arg )
{	{
struct re_s *rtask = arg;	struct re_s *rtask = arg;
syncops *so = rtask->arg;	syncops *so = rtask->arg;
slap_overinst *on = so->s_op->o_private;
OperationBuffer opbuf;	OperationBuffer opbuf;
Operation *op;	Operation *op;
BackendDB be;	BackendDB be;
int rc;	int rc;

op = (Operation *) &opbuf;	op = &opbuf.ob_op;
op = so->s_op;	op = so->s_op;
op->o_hdr = (Opheader *)(op+1);	op->o_hdr = &opbuf.ob_hdr;
op->o_controls = (void **)(op->o_hdr+1);	op->o_controls = opbuf.ob_controls;
memset( op->o_controls, 0, SLAP_MAX_CIDS * sizeof(void *));	memset( op->o_controls, 0, sizeof(opbuf.ob_controls) );

op->o_hdr = so->s_op->o_hdr;	op->o_hdr = so->s_op->o_hdr;

op->o_tmpmemctx = slap_sl_mem_create(SLAP_SLAB_SIZE, SLAP_SLAB_STACK, ctx);	op->o_tmpmemctx = slap_sl_mem_create(SLAP_SLAB_SIZE, SLAP_SLAB_STACK, ctx, 1);
op->o_tmpmfuncs = &slap_sl_mfuncs;	op->o_tmpmfuncs = &slap_sl_mfuncs;
op->o_threadctx = ctx;	op->o_threadctx = ctx;

Line 892 syncprov_qtask( void ctx, void arg )	Line 936 syncprov_qtask( void ctx, void arg )
be = *so->s_op->o_bd;	be = *so->s_op->o_bd;
be.be_flags \|= SLAP_DBFLAG_OVERLAY;	be.be_flags \|= SLAP_DBFLAG_OVERLAY;
op->o_bd = &be;	op->o_bd = &be;
op->o_private = NULL;	LDAP_SLIST_FIRST(&op->o_extra) = NULL;
op->o_callback = NULL;	op->o_callback = NULL;

rc = syncprov_qplay( op, on, so );	rc = syncprov_qplay( op, rtask );

/* decrement use count... */	/* decrement use count... */
syncprov_free_syncop( so );	syncprov_free_syncop( so );

/* wait until we get explicitly scheduled again */	#if 0 /* FIXME: connection_close isn't exported from slapd.
ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );	* should it be?
ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );	*/
if ( rc == 0 ) {	if ( rc ) {
ldap_pvt_runqueue_resched( &slapd_rq, rtask, 1 );	ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
} else {	if ( connection_state_closing( op->o_conn )) {
/* bail out on any error */	connection_close( op->o_conn );
ldap_pvt_runqueue_remove( &slapd_rq, rtask );	}
	ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
}	}
ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );	#endif

return NULL;	return NULL;
}	}

Line 946 static int	Line 990 static int
syncprov_qresp( opcookie opc, syncops so, int mode )	syncprov_qresp( opcookie opc, syncops so, int mode )
{	{
syncres *sr;	syncres *sr;
	int sid, srsize;

sr = ch_malloc(sizeof(syncres) + opc->suuid.bv_len + 1 +	/* Don't send changes back to their originator */
opc->sdn.bv_len + 1 + opc->sndn.bv_len + 1 + opc->sctxcsn.bv_len + 1 );	sid = slap_parse_csn_sid( &opc->sctxcsn );
	if ( sid >= 0 && sid == so->s_sid )
	return LDAP_SUCCESS;

	srsize = sizeof(syncres) + opc->suuid.bv_len + 1 +
	opc->sdn.bv_len + 1 + opc->sndn.bv_len + 1;
	if ( opc->sctxcsn.bv_len )
	srsize += opc->sctxcsn.bv_len + 1;
	sr = ch_malloc( srsize );
sr->s_next = NULL;	sr->s_next = NULL;
sr->s_dn.bv_val = (char *)(sr + 1);	sr->s_dn.bv_val = (char *)(sr + 1);
sr->s_dn.bv_len = opc->sdn.bv_len;	sr->s_dn.bv_len = opc->sdn.bv_len;
Line 961 syncprov_qresp( opcookie opc, syncops	Line 1014 syncprov_qresp( opcookie opc, syncops
opc->sndn.bv_val ) + 1;	opc->sndn.bv_val ) + 1;
sr->s_uuid.bv_len = opc->suuid.bv_len;	sr->s_uuid.bv_len = opc->suuid.bv_len;
AC_MEMCPY( sr->s_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );	AC_MEMCPY( sr->s_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
sr->s_csn.bv_val = sr->s_uuid.bv_val + sr->s_uuid.bv_len + 1;	if ( opc->sctxcsn.bv_len ) {
	sr->s_csn.bv_val = sr->s_uuid.bv_val + sr->s_uuid.bv_len + 1;
	strcpy( sr->s_csn.bv_val, opc->sctxcsn.bv_val );
	} else {
	sr->s_csn.bv_val = NULL;
	}
sr->s_csn.bv_len = opc->sctxcsn.bv_len;	sr->s_csn.bv_len = opc->sctxcsn.bv_len;
strcpy( sr->s_csn.bv_val, opc->sctxcsn.bv_val );

ldap_pvt_thread_mutex_lock( &so->s_mutex );	ldap_pvt_thread_mutex_lock( &so->s_mutex );
if ( !so->s_res ) {	if ( !so->s_res ) {
Line 993 syncprov_drop_psearch( syncops *so, int	Line 1050 syncprov_drop_psearch( syncops *so, int
ldap_pvt_thread_mutex_lock( &so->s_op->o_conn->c_mutex );	ldap_pvt_thread_mutex_lock( &so->s_op->o_conn->c_mutex );
so->s_op->o_conn->c_n_ops_executing--;	so->s_op->o_conn->c_n_ops_executing--;
so->s_op->o_conn->c_n_ops_completed++;	so->s_op->o_conn->c_n_ops_completed++;
LDAP_STAILQ_REMOVE( &so->s_op->o_conn->c_ops, so->s_op, slap_op,	LDAP_STAILQ_REMOVE( &so->s_op->o_conn->c_ops, so->s_op, Operation,
o_next );	o_next );
if ( lock )	if ( lock )
ldap_pvt_thread_mutex_unlock( &so->s_op->o_conn->c_mutex );	ldap_pvt_thread_mutex_unlock( &so->s_op->o_conn->c_mutex );
Line 1060 syncprov_matchops( Operation *op, opcook	Line 1117 syncprov_matchops( Operation *op, opcook

fbase_cookie fc;	fbase_cookie fc;
syncops ss, sprev, *snext;	syncops ss, sprev, *snext;
Entry *e;	Entry *e = NULL;
Attribute *a;	Attribute *a;
int rc;	int rc;
struct berval newdn;	struct berval newdn;
Line 1082 syncprov_matchops( Operation *op, opcook	Line 1139 syncprov_matchops( Operation *op, opcook
db = *op->o_bd;	db = *op->o_bd;
op->o_bd = &db;	op->o_bd = &db;
}	}
op->o_bd->bd_info = (BackendInfo *)on->on_info;	rc = overlay_entry_get_ov( op, fc.fdn, NULL, NULL, 0, &e, on );
rc = be_entry_get_rw( op, fc.fdn, NULL, NULL, 0, &e );
/* If we're sending responses now, make a copy and unlock the DB */	/* If we're sending responses now, make a copy and unlock the DB */
if ( e && !saveit ) {	if ( e && !saveit ) {
Entry *e2 = entry_dup( e );	Entry *e2 = entry_dup( e );
be_entry_release_rw( op, e, 0 );	overlay_entry_release_ov( op, e, 0, on );
e = e2;	e = e2;
}	}
op->o_bd->bd_info = (BackendInfo *)on;
if ( rc ) {	if ( rc ) {
op->o_bd = b0;	op->o_bd = b0;
return;	return;
Line 1162 syncprov_matchops( Operation *op, opcook	Line 1217 syncprov_matchops( Operation *op, opcook
}	}

/* check if current o_req_dn is in scope and matches filter */	/* check if current o_req_dn is in scope and matches filter */
if ( fc.fscope && test_filter( op, e, ss->s_op->ors_filter ) ==	if ( fc.fscope && test_filter( ss->s_op, e, ss->s_op->ors_filter ) ==
LDAP_COMPARE_TRUE ) {	LDAP_COMPARE_TRUE ) {
if ( saveit ) {	if ( saveit ) {
sm = op->o_tmpalloc( sizeof(syncmatches), op->o_tmpmemctx );	sm = op->o_tmpalloc( sizeof(syncmatches), op->o_tmpmemctx );
Line 1185 syncprov_matchops( Operation *op, opcook	Line 1240 syncprov_matchops( Operation *op, opcook
ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );	ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );

if ( op->o_tag != LDAP_REQ_ADD && e ) {	if ( op->o_tag != LDAP_REQ_ADD && e ) {
op->o_bd->bd_info = (BackendInfo *)on->on_info;	if ( !SLAP_ISOVERLAY( op->o_bd )) {
be_entry_release_rw( op, e, 0 );	op->o_bd = &db;
op->o_bd->bd_info = (BackendInfo *)on;	}
	overlay_entry_release_ov( op, e, 0, on );
	op->o_bd = b0;
}	}
if ( freefdn ) {	if ( freefdn ) {
op->o_tmpfree( fc.fdn->bv_val, op->o_tmpmemctx );	op->o_tmpfree( fc.fdn->bv_val, op->o_tmpmemctx );
Line 1247 syncprov_op_cleanup( Operation *op, Slap	Line 1304 syncprov_op_cleanup( Operation *op, Slap
static void	static void
syncprov_checkpoint( Operation op, SlapReply rs, slap_overinst *on )	syncprov_checkpoint( Operation op, SlapReply rs, slap_overinst *on )
{	{
syncprov_info_t *si = on->on_bi.bi_private;	syncprov_info_t si = (syncprov_info_t )on->on_bi.bi_private;
Modifications mod;	Modifications mod;
Operation opm;	Operation opm;
SlapReply rsm = { 0 };	SlapReply rsm = { 0 };
struct berval bv[2];
slap_callback cb = {0};	slap_callback cb = {0};
	BackendDB be;

/* If ctxcsn is empty, delete it */	mod.sml_numvals = si->si_numcsns;
if ( BER_BVISEMPTY( &si->si_ctxcsn )) {	mod.sml_values = si->si_ctxcsn;
mod.sml_values = NULL;
} else {
mod.sml_values = bv;
bv[1].bv_val = NULL;
bv[0] = si->si_ctxcsn;
}
mod.sml_nvalues = NULL;	mod.sml_nvalues = NULL;
mod.sml_desc = slap_schema.si_ad_contextCSN;	mod.sml_desc = slap_schema.si_ad_contextCSN;
mod.sml_op = LDAP_MOD_REPLACE;	mod.sml_op = LDAP_MOD_REPLACE;
Line 1273 syncprov_checkpoint( Operation *op, Slap	Line 1324 syncprov_checkpoint( Operation *op, Slap
opm.o_tag = LDAP_REQ_MODIFY;	opm.o_tag = LDAP_REQ_MODIFY;
opm.o_callback = &cb;	opm.o_callback = &cb;
opm.orm_modlist = &mod;	opm.orm_modlist = &mod;
opm.o_req_dn = op->o_bd->be_suffix[0];	opm.orm_no_opattrs = 1;
opm.o_req_ndn = op->o_bd->be_nsuffix[0];	if ( SLAP_GLUE_SUBORDINATE( op->o_bd )) {
	be = *on->on_info->oi_origdb;
	opm.o_bd = &be;
	}
	opm.o_req_dn = opm.o_bd->be_suffix[0];
	opm.o_req_ndn = opm.o_bd->be_nsuffix[0];
opm.o_bd->bd_info = on->on_info->oi_orig;	opm.o_bd->bd_info = on->on_info->oi_orig;
opm.o_managedsait = SLAP_CONTROL_NONCRITICAL;	opm.o_managedsait = SLAP_CONTROL_NONCRITICAL;
SLAP_DBFLAGS( opm.o_bd ) \|= SLAP_DBFLAG_NOLASTMOD;	opm.o_no_schema_check = 1;
opm.o_bd->be_modify( &opm, &rsm );	opm.o_bd->be_modify( &opm, &rsm );
SLAP_DBFLAGS( opm.o_bd ) ^= SLAP_DBFLAG_NOLASTMOD;
if ( mod.sml_next != NULL ) {	if ( mod.sml_next != NULL ) {
slap_mods_free( mod.sml_next, 1 );	slap_mods_free( mod.sml_next, 1 );
}	}
Line 1310 syncprov_add_slog( Operation *op )	Line 1365 syncprov_add_slog( Operation *op )
AC_MEMCPY( se->se_csn.bv_val, op->o_csn.bv_val, op->o_csn.bv_len );	AC_MEMCPY( se->se_csn.bv_val, op->o_csn.bv_val, op->o_csn.bv_len );
se->se_csn.bv_val[op->o_csn.bv_len] = '\0';	se->se_csn.bv_val[op->o_csn.bv_len] = '\0';
se->se_csn.bv_len = op->o_csn.bv_len;	se->se_csn.bv_len = op->o_csn.bv_len;
	se->se_sid = slap_parse_csn_sid( &se->se_csn );

ldap_pvt_thread_mutex_lock( &sl->sl_mutex );	ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
if ( sl->sl_head ) {	if ( sl->sl_head ) {
Line 1344 playlog_cb( Operation op, SlapReply rs	Line 1400 playlog_cb( Operation op, SlapReply rs
/* enter with sl->sl_mutex locked, release before returning */	/* enter with sl->sl_mutex locked, release before returning */
static void	static void
syncprov_playlog( Operation op, SlapReply rs, sessionlog *sl,	syncprov_playlog( Operation op, SlapReply rs, sessionlog *sl,
sync_control srs, struct berval ctxcsn )	sync_control srs, BerVarray ctxcsn, int numcsns, int sids )
{	{
slap_overinst on = (slap_overinst )op->o_bd->bd_info;	slap_overinst on = (slap_overinst )op->o_bd->bd_info;
slog_entry *se;	slog_entry *se;
int i, j, ndel, num, nmods, mmods;	int i, j, ndel, num, nmods, mmods;
char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];	char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
BerVarray uuids;	BerVarray uuids;
struct berval delcsn;	struct berval delcsn[2];

if ( !sl->sl_num ) {	if ( !sl->sl_num ) {
ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );	ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
Line 1366 syncprov_playlog( Operation *op, SlapRep	Line 1422 syncprov_playlog( Operation *op, SlapRep
num * UUID_LEN, op->o_tmpmemctx );	num * UUID_LEN, op->o_tmpmemctx );
uuids[0].bv_val = (char *)(uuids + num + 1);	uuids[0].bv_val = (char *)(uuids + num + 1);

delcsn.bv_len = 0;	delcsn[0].bv_len = 0;
delcsn.bv_val = cbuf;	delcsn[0].bv_val = cbuf;
	BER_BVZERO(&delcsn[1]);

/* Make a copy of the relevant UUIDs. Put the Deletes up front	/* Make a copy of the relevant UUIDs. Put the Deletes up front
* and everything else at the end. Do this first so we can	* and everything else at the end. Do this first so we can
* unlock the list mutex.	* unlock the list mutex.
*/	*/
Debug( LDAP_DEBUG_SYNC, "srs csn %s\n", srs->sr_state.ctxcsn.bv_val, 0, 0 );	Debug( LDAP_DEBUG_SYNC, "srs csn %s\n",
	srs->sr_state.ctxcsn[0].bv_val, 0, 0 );
for ( se=sl->sl_head; se; se=se->se_next ) {	for ( se=sl->sl_head; se; se=se->se_next ) {
	int k;
Debug( LDAP_DEBUG_SYNC, "log csn %s\n", se->se_csn.bv_val, 0, 0 );	Debug( LDAP_DEBUG_SYNC, "log csn %s\n", se->se_csn.bv_val, 0, 0 );
ndel = ber_bvcmp( &se->se_csn, &srs->sr_state.ctxcsn );	ndel = 1;
	for ( k=0; k<srs->sr_state.numcsns; k++ ) {
	if ( se->se_sid == srs->sr_state.sids[k] ) {
	ndel = ber_bvcmp( &se->se_csn, &srs->sr_state.ctxcsn[k] );
	break;
	}
	}
if ( ndel <= 0 ) {	if ( ndel <= 0 ) {
Debug( LDAP_DEBUG_SYNC, "cmp %d, too old\n", ndel, 0, 0 );	Debug( LDAP_DEBUG_SYNC, "cmp %d, too old\n", ndel, 0, 0 );
continue;	continue;
}	}
ndel = ber_bvcmp( &se->se_csn, ctxcsn );	ndel = 0;
	for ( k=0; k<numcsns; k++ ) {
	if ( se->se_sid == sids[k] ) {
	ndel = ber_bvcmp( &se->se_csn, &ctxcsn[k] );
	break;
	}
	}
if ( ndel > 0 ) {	if ( ndel > 0 ) {
Debug( LDAP_DEBUG_SYNC, "cmp %d, too new\n", ndel, 0, 0 );	Debug( LDAP_DEBUG_SYNC, "cmp %d, too new\n", ndel, 0, 0 );
break;	break;
Line 1390 syncprov_playlog( Operation *op, SlapRep	Line 1461 syncprov_playlog( Operation *op, SlapRep
j = i;	j = i;
i++;	i++;
AC_MEMCPY( cbuf, se->se_csn.bv_val, se->se_csn.bv_len );	AC_MEMCPY( cbuf, se->se_csn.bv_val, se->se_csn.bv_len );
delcsn.bv_len = se->se_csn.bv_len;	delcsn[0].bv_len = se->se_csn.bv_len;
delcsn.bv_val[delcsn.bv_len] = '\0';	delcsn[0].bv_val[delcsn[0].bv_len] = '\0';
} else {	} else {
nmods++;	nmods++;
j = num - nmods;	j = num - nmods;
Line 1436 syncprov_playlog( Operation *op, SlapRep	Line 1507 syncprov_playlog( Operation *op, SlapRep
SlapReply frs = { REP_RESULT };	SlapReply frs = { REP_RESULT };
int rc;	int rc;
Filter mf, af;	Filter mf, af;
#ifdef LDAP_COMP_MATCH	AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
AttributeAssertion eq = { NULL, BER_BVNULL, NULL };
#else
AttributeAssertion eq;
#endif
slap_callback cb = {0};	slap_callback cb = {0};

fop = *op;	fop = *op;
Line 1464 syncprov_playlog( Operation *op, SlapRep	Line 1531 syncprov_playlog( Operation *op, SlapRep
fop.ors_filter = ⁡	fop.ors_filter = ⁡

cb.sc_response = playlog_cb;	cb.sc_response = playlog_cb;
fop.o_bd->bd_info = on->on_info->oi_orig;	if ( on->on_next )
	fop.o_bd->bd_info = (BackendInfo *)on->on_next;
	else
	fop.o_bd->bd_info = on->on_info->oi_orig;

for ( i=ndel; i<num; i++ ) {	for ( i=ndel; i<num; i++ ) {
if ( uuids[i].bv_len == 0 ) continue;	if ( uuids[i].bv_len == 0 ) continue;
Line 1485 syncprov_playlog( Operation *op, SlapRep	Line 1555 syncprov_playlog( Operation *op, SlapRep
if ( ndel ) {	if ( ndel ) {
struct berval cookie;	struct berval cookie;

slap_compose_sync_cookie( op, &cookie, &delcsn, srs->sr_state.rid );	if ( delcsn[0].bv_len ) {
	slap_compose_sync_cookie( op, &cookie, delcsn, srs->sr_state.rid,
	srs->sr_state.sid );
	}

	Debug( LDAP_DEBUG_SYNC, "syncprov_playlog: cookie=%s\n", cookie.bv_val, 0, 0 );

uuids[ndel].bv_val = NULL;	uuids[ndel].bv_val = NULL;
syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET, &cookie, 0, uuids, 1 );	syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET,
	delcsn[0].bv_len ? &cookie : NULL, 0, uuids, 1 );
op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );	op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
}	}
op->o_tmpfree( uuids, op->o_tmpmemctx );	op->o_tmpfree( uuids, op->o_tmpmemctx );
Line 1505 syncprov_op_response( Operation *op, Sla	Line 1582 syncprov_op_response( Operation *op, Sla
{	{
struct berval maxcsn = BER_BVNULL;	struct berval maxcsn = BER_BVNULL;
char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];	char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
int do_check=0;	int do_check = 0, have_psearches;

/* Update our context CSN */	/* Update our context CSN */
cbuf[0] = '\0';	cbuf[0] = '\0';
ldap_pvt_thread_rdwr_wlock( &si->si_csn_rwlock );	ldap_pvt_thread_rdwr_wlock( &si->si_csn_rwlock );
slap_get_commit_csn( op, &maxcsn );	slap_get_commit_csn( op, &maxcsn );
if ( !BER_BVISNULL( &maxcsn ) ) {	if ( !BER_BVISNULL( &maxcsn ) ) {
	int i, sid;
strcpy( cbuf, maxcsn.bv_val );	strcpy( cbuf, maxcsn.bv_val );
if ( ber_bvcmp( &maxcsn, &si->si_ctxcsn ) > 0 ) {	sid = slap_parse_csn_sid( &maxcsn );
strcpy( si->si_ctxcsnbuf, cbuf );	for ( i=0; i<si->si_numcsns; i++ ) {
si->si_ctxcsn.bv_len = maxcsn.bv_len;	if ( sid == si->si_sids[i] ) {
	if ( ber_bvcmp( &maxcsn, &si->si_ctxcsn[i] ) > 0 ) {
	ber_bvreplace( &si->si_ctxcsn[i], &maxcsn );
	}
	break;
	}
	}
	/* It's a new SID for us */
	if ( i == si->si_numcsns ) {
	value_add_one( &si->si_ctxcsn, &maxcsn );
	si->si_numcsns++;
	si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
	sizeof(int));
	si->si_sids[i] = sid;
}	}
}	}

Line 1534 syncprov_op_response( Operation *op, Sla	Line 1625 syncprov_op_response( Operation *op, Sla
}	}
if ( si->si_chktime &&	if ( si->si_chktime &&
(op->o_time - si->si_chklast >= si->si_chktime )) {	(op->o_time - si->si_chklast >= si->si_chktime )) {
do_check = 1;	if ( si->si_chklast ) {
si->si_chklast = op->o_time;	do_check = 1;
	si->si_chklast = op->o_time;
	} else {
	si->si_chklast = 1;
	}
}	}
}	}
ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );	ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
Line 1550 syncprov_op_response( Operation *op, Sla	Line 1645 syncprov_op_response( Operation *op, Sla
opc->sctxcsn.bv_val = cbuf;	opc->sctxcsn.bv_val = cbuf;

/* Handle any persistent searches */	/* Handle any persistent searches */
if ( si->si_ops ) {	ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
	have_psearches = ( si->si_ops != NULL );
	ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
	if ( have_psearches ) {
switch(op->o_tag) {	switch(op->o_tag) {
case LDAP_REQ_ADD:	case LDAP_REQ_ADD:
case LDAP_REQ_MODIFY:	case LDAP_REQ_MODIFY:
Line 1596 syncprov_op_compare( Operation *op, Slap	Line 1694 syncprov_op_compare( Operation *op, Slap
{	{
Entry e = {0};	Entry e = {0};
Attribute a = {0};	Attribute a = {0};
struct berval bv[2];

e.e_name = op->o_bd->be_suffix[0];	e.e_name = op->o_bd->be_suffix[0];
e.e_nname = op->o_bd->be_nsuffix[0];	e.e_nname = op->o_bd->be_nsuffix[0];
	e.e_attrs = &a;
BER_BVZERO( &bv[1] );
bv[0] = si->si_ctxcsn;

a.a_desc = slap_schema.si_ad_contextCSN;	a.a_desc = slap_schema.si_ad_contextCSN;
a.a_vals = bv;
a.a_nvals = a.a_vals;

ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );	ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );

	a.a_vals = si->si_ctxcsn;
	a.a_nvals = a.a_vals;

rs->sr_err = access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc,	rs->sr_err = access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc,
&op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL );	&op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL );
if ( ! rs->sr_err ) {	if ( ! rs->sr_err ) {
Line 1627 syncprov_op_compare( Operation *op, Slap	Line 1723 syncprov_op_compare( Operation *op, Slap

rs->sr_err = LDAP_COMPARE_FALSE;	rs->sr_err = LDAP_COMPARE_FALSE;

if ( value_find_ex( op->oq_compare.rs_ava->aa_desc,	if ( attr_valfind( &a,
SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH \|	SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH \|
SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,	SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
a.a_nvals, &op->oq_compare.rs_ava->aa_value, op->o_tmpmemctx ) == 0 )	&op->oq_compare.rs_ava->aa_value, NULL, op->o_tmpmemctx ) == 0 )
{	{
rs->sr_err = LDAP_COMPARE_TRUE;	rs->sr_err = LDAP_COMPARE_TRUE;
}	}
Line 1655 syncprov_op_mod( Operation *op, SlapRepl	Line 1751 syncprov_op_mod( Operation *op, SlapRepl
{	{
slap_overinst on = (slap_overinst )op->o_bd->bd_info;	slap_overinst on = (slap_overinst )op->o_bd->bd_info;
syncprov_info_t *si = on->on_bi.bi_private;	syncprov_info_t *si = on->on_bi.bi_private;
	slap_callback *cb;
	opcookie *opc;
	int have_psearches, cbsize;

slap_callback *cb = op->o_tmpcalloc(1, sizeof(slap_callback)+	ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
sizeof(opcookie) +	have_psearches = ( si->si_ops != NULL );
(si->si_ops ? sizeof(modinst) : 0 ),	ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
op->o_tmpmemctx);
opcookie opc = (opcookie )(cb+1);	cbsize = sizeof(slap_callback) + sizeof(opcookie) +
	(have_psearches ? sizeof(modinst) : 0 );

	cb = op->o_tmpcalloc(1, cbsize, op->o_tmpmemctx);
	opc = (opcookie *)(cb+1);
opc->son = on;	opc->son = on;
cb->sc_response = syncprov_op_response;	cb->sc_response = syncprov_op_response;
cb->sc_cleanup = syncprov_op_cleanup;	cb->sc_cleanup = syncprov_op_cleanup;
Line 1671 syncprov_op_mod( Operation *op, SlapRepl	Line 1774 syncprov_op_mod( Operation *op, SlapRepl
/* If there are active persistent searches, lock this operation.	/* If there are active persistent searches, lock this operation.
* See seqmod.c for the locking logic on its own.	* See seqmod.c for the locking logic on its own.
*/	*/
if ( si->si_ops ) {	if ( have_psearches ) {
modtarget *mt, mtdummy;	modtarget *mt, mtdummy;
modinst *mi;	modinst *mi;

Line 1690 syncprov_op_mod( Operation *op, SlapRepl	Line 1793 syncprov_op_mod( Operation *op, SlapRepl
/* wait for this op to get to head of list */	/* wait for this op to get to head of list */
while ( mt->mt_mods != mi ) {	while ( mt->mt_mods != mi ) {
ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );	ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
ldap_pvt_thread_yield();	/* FIXME: if dynamic config can delete overlays or
	* databases we'll have to check for cleanup here.
	* Currently it's not an issue because there are
	* no dynamic config deletes...
	*/
	if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
	ldap_pvt_thread_yield();
ldap_pvt_thread_mutex_lock( &mt->mt_mutex );	ldap_pvt_thread_mutex_lock( &mt->mt_mutex );

/* clean up if the caller is giving up */	/* clean up if the caller is giving up */
Line 1718 syncprov_op_mod( Operation *op, SlapRepl	Line 1827 syncprov_op_mod( Operation *op, SlapRepl
}	}
}	}

if (( si->si_ops \|\| si->si_logs ) && op->o_tag != LDAP_REQ_ADD )	if (( have_psearches \|\| si->si_logs ) && op->o_tag != LDAP_REQ_ADD )
syncprov_matchops( op, opc, 1 );	syncprov_matchops( op, opc, 1 );

return SLAP_CB_CONTINUE;	return SLAP_CB_CONTINUE;
Line 1736 syncprov_op_extended( Operation *op, Sla	Line 1845 syncprov_op_extended( Operation *op, Sla
typedef struct searchstate {	typedef struct searchstate {
slap_overinst *ss_on;	slap_overinst *ss_on;
syncops *ss_so;	syncops *ss_so;
int ss_present;	BerVarray ss_ctxcsn;
struct berval ss_ctxcsn;	int *ss_sids;
char ss_csnbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];	int ss_numcsns;
	#define SS_PRESENT 0x01
	#define SS_CHANGED 0x02
	int ss_flags;
} searchstate;	} searchstate;

static int	static int
Line 1752 syncprov_search_cleanup( Operation *op,	Line 1864 syncprov_search_cleanup( Operation *op,
return 0;	return 0;
}	}

	typedef struct SyncOperationBuffer {
	Operation sob_op;
	Opheader sob_hdr;
	OpExtra sob_oe;
	AttributeName sob_extra; /* not always present */
	/* Further data allocated here */
	} SyncOperationBuffer;

static void	static void
syncprov_detach_op( Operation op, syncops so, slap_overinst *on )	syncprov_detach_op( Operation op, syncops so, slap_overinst *on )
{	{
	SyncOperationBuffer *sopbuf2;
Operation *op2;	Operation *op2;
int i, alen = 0;	int i, alen = 0;
size_t size;	size_t size;
Line 1766 syncprov_detach_op( Operation *op, synco	Line 1887 syncprov_detach_op( Operation *op, synco
alen += op->ors_attrs[i].an_name.bv_len + 1;	alen += op->ors_attrs[i].an_name.bv_len + 1;
}	}
/* Make a new copy of the operation */	/* Make a new copy of the operation */
size = sizeof(Operation) + sizeof(Opheader) +	size = offsetof( SyncOperationBuffer, sob_extra ) +
(i ? ( (i+1) * sizeof(AttributeName) + alen) : 0) +	(i ? ( (i+1) * sizeof(AttributeName) + alen) : 0) +
op->o_req_dn.bv_len + 1 +	op->o_req_dn.bv_len + 1 +
op->o_req_ndn.bv_len + 1 +	op->o_req_ndn.bv_len + 1 +
op->o_ndn.bv_len + 1 +	op->o_ndn.bv_len + 1 +
so->s_filterstr.bv_len + 1;	so->s_filterstr.bv_len + 1;
op2 = (Operation *)ch_calloc( 1, size );	sopbuf2 = ch_calloc( 1, size );
op2->o_hdr = (Opheader *)(op2+1);	op2 = &sopbuf2->sob_op;
	op2->o_hdr = &sopbuf2->sob_hdr;
	LDAP_SLIST_FIRST(&op2->o_extra) = &sopbuf2->sob_oe;

/* Copy the fields we care about explicitly, leave the rest alone */	/* Copy the fields we care about explicitly, leave the rest alone */
op2->o_hdr = op->o_hdr;	op2->o_hdr = op->o_hdr;
Line 1781 syncprov_detach_op( Operation *op, synco	Line 1904 syncprov_detach_op( Operation *op, synco
op2->o_time = op->o_time;	op2->o_time = op->o_time;
op2->o_bd = on->on_info->oi_origdb;	op2->o_bd = on->on_info->oi_origdb;
op2->o_request = op->o_request;	op2->o_request = op->o_request;
op2->o_private = on;	LDAP_SLIST_FIRST(&op2->o_extra)->oe_key = on;
	LDAP_SLIST_NEXT(LDAP_SLIST_FIRST(&op2->o_extra), oe_next) = NULL;

	ptr = (char *) sopbuf2 + offsetof( SyncOperationBuffer, sob_extra );
if ( i ) {	if ( i ) {
op2->ors_attrs = (AttributeName *)(op2->o_hdr + 1);	op2->ors_attrs = (AttributeName *) ptr;
ptr = (char *)(op2->ors_attrs+i+1);	ptr = (char *) &op2->ors_attrs[i+1];
for (i=0; !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {	for (i=0; !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
op2->ors_attrs[i] = op->ors_attrs[i];	op2->ors_attrs[i] = op->ors_attrs[i];
op2->ors_attrs[i].an_name.bv_val = ptr;	op2->ors_attrs[i].an_name.bv_val = ptr;
ptr = lutil_strcopy( ptr, op->ors_attrs[i].an_name.bv_val ) + 1;	ptr = lutil_strcopy( ptr, op->ors_attrs[i].an_name.bv_val ) + 1;
}	}
BER_BVZERO( &op2->ors_attrs[i].an_name );	BER_BVZERO( &op2->ors_attrs[i].an_name );
} else {
ptr = (char *)(op2->o_hdr + 1);
}	}

op2->o_authz = op->o_authz;	op2->o_authz = op->o_authz;
op2->o_ndn.bv_val = ptr;	op2->o_ndn.bv_val = ptr;
ptr = lutil_strcopy(ptr, op->o_ndn.bv_val) + 1;	ptr = lutil_strcopy(ptr, op->o_ndn.bv_val) + 1;
Line 1832 syncprov_detach_op( Operation *op, synco	Line 1956 syncprov_detach_op( Operation *op, synco
op2->o_do_not_cache = 1;	op2->o_do_not_cache = 1;

/* Add op2 to conn so abandon will find us */	/* Add op2 to conn so abandon will find us */
ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
op->o_conn->c_n_ops_executing++;	op->o_conn->c_n_ops_executing++;
op->o_conn->c_n_ops_completed--;	op->o_conn->c_n_ops_completed--;
LDAP_STAILQ_INSERT_TAIL( &op->o_conn->c_ops, op2, o_next );	LDAP_STAILQ_INSERT_TAIL( &op->o_conn->c_ops, op2, o_next );
so->s_flags \|= PS_IS_DETACHED;	so->s_flags \|= PS_IS_DETACHED;
ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );

/* Prevent anyone else from trying to send a result for this op */	/* Prevent anyone else from trying to send a result for this op */
op->o_abandon = 1;	op->o_abandon = 1;
Line 1867 syncprov_search_response( Operation *op,	Line 1989 syncprov_search_response( Operation *op,
a = attr_find( rs->sr_operational_attrs, slap_schema.si_ad_entryCSN );	a = attr_find( rs->sr_operational_attrs, slap_schema.si_ad_entryCSN );
}	}
if ( a ) {	if ( a ) {
/* Make sure entry is less than the snapshot'd contextCSN */	int i, sid;
if ( ber_bvcmp( &a->a_nvals[0], &ss->ss_ctxcsn ) > 0 ) {	sid = slap_parse_csn_sid( &a->a_nvals[0] );
Debug( LDAP_DEBUG_SYNC, "Entry %s CSN %s greater than snapshot %s\n",
rs->sr_entry->e_name.bv_val,	/* Don't send changed entries back to the originator */
a->a_nvals[0].bv_val,	if ( sid == srs->sr_state.sid && srs->sr_state.numcsns ) {
ss->ss_ctxcsn.bv_val );	Debug( LDAP_DEBUG_SYNC,
	"Entry %s changed by peer, ignored\n",
	rs->sr_entry->e_name.bv_val, 0, 0 );
return LDAP_SUCCESS;	return LDAP_SUCCESS;
}	}

/* Don't send the ctx entry twice */	/* If not a persistent search */
if ( !BER_BVISNULL( &srs->sr_state.ctxcsn ) &&	if ( !ss->ss_so ) {
bvmatch( &a->a_nvals[0], &srs->sr_state.ctxcsn ) ) {	/* Make sure entry is less than the snapshot'd contextCSN */
Debug( LDAP_DEBUG_SYNC, "Entry %s CSN %s matches ctx %s\n",	for ( i=0; i<ss->ss_numcsns; i++ ) {
rs->sr_entry->e_name.bv_val,	if ( sid == ss->ss_sids[i] && ber_bvcmp( &a->a_nvals[0],
a->a_nvals[0].bv_val,	&ss->ss_ctxcsn[i] ) > 0 ) {
srs->sr_state.ctxcsn.bv_val );	Debug( LDAP_DEBUG_SYNC,
return LDAP_SUCCESS;	"Entry %s CSN %s greater than snapshot %s\n",
	rs->sr_entry->e_name.bv_val,
	a->a_nvals[0].bv_val,
	ss->ss_ctxcsn[i].bv_val );
	return LDAP_SUCCESS;
	}
	}
	}

	/* Don't send old entries twice */
	if ( srs->sr_state.ctxcsn ) {
	for ( i=0; i<srs->sr_state.numcsns; i++ ) {
	if ( sid == srs->sr_state.sids[i] &&
	ber_bvcmp( &a->a_nvals[0],
	&srs->sr_state.ctxcsn[i] )<= 0 ) {
	Debug( LDAP_DEBUG_SYNC,
	"Entry %s CSN %s older or equal to ctx %s\n",
	rs->sr_entry->e_name.bv_val,
	a->a_nvals[0].bv_val,
	srs->sr_state.ctxcsn[i].bv_val );
	return LDAP_SUCCESS;
	}
	}
}	}
}	}
rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl )2,	rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl )2,
Line 1894 syncprov_search_response( Operation *op,	Line 2040 syncprov_search_response( Operation *op,
} else if ( rs->sr_type == REP_RESULT && rs->sr_err == LDAP_SUCCESS ) {	} else if ( rs->sr_type == REP_RESULT && rs->sr_err == LDAP_SUCCESS ) {
struct berval cookie;	struct berval cookie;

slap_compose_sync_cookie( op, &cookie, &ss->ss_ctxcsn,	if ( ss->ss_flags & SS_CHANGED ) {
srs->sr_state.rid );	slap_compose_sync_cookie( op, &cookie, ss->ss_ctxcsn,
	srs->sr_state.rid, srs->sr_state.sid );

/* Is this a regular refresh? */	Debug( LDAP_DEBUG_SYNC, "syncprov_search_response: cookie=%s\n", cookie.bv_val, 0, 0 );
	}

	/* Is this a regular refresh?
	* Note: refresh never gets here if there were no changes
	*/
if ( !ss->ss_so ) {	if ( !ss->ss_so ) {
rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl )2,	rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl )2,
op->o_tmpmemctx );	op->o_tmpmemctx );
rs->sr_ctrls[1] = NULL;	rs->sr_ctrls[1] = NULL;
rs->sr_err = syncprov_done_ctrl( op, rs, rs->sr_ctrls,	rs->sr_err = syncprov_done_ctrl( op, rs, rs->sr_ctrls,
0, 1, &cookie, ss->ss_present ? LDAP_SYNC_REFRESH_PRESENTS :	0, 1, &cookie, ( ss->ss_flags & SS_PRESENT ) ? LDAP_SYNC_REFRESH_PRESENTS :
LDAP_SYNC_REFRESH_DELETES );	LDAP_SYNC_REFRESH_DELETES );
op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );	op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
} else {	} else {
/* It's RefreshAndPersist, transition to Persist phase */	/* It's RefreshAndPersist, transition to Persist phase */
syncprov_sendinfo( op, rs, ss->ss_present ?	syncprov_sendinfo( op, rs, ( ss->ss_flags & SS_PRESENT ) ?
LDAP_TAG_SYNC_REFRESH_PRESENT : LDAP_TAG_SYNC_REFRESH_DELETE,	LDAP_TAG_SYNC_REFRESH_PRESENT : LDAP_TAG_SYNC_REFRESH_DELETE,
&cookie, 1, NULL, 0 );	( ss->ss_flags & SS_CHANGED ) ? &cookie : NULL,
op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );	1, NULL, 0 );
	if ( ss->ss_flags & SS_CHANGED )
	op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );

/* Detach this Op from frontend control */	/* Detach this Op from frontend control */
ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex );	ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex );
	ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );

	/* But not if this connection was closed along the way */
	if ( op->o_abandon ) {
	ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
	ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
	syncprov_free_syncop( ss->ss_so );
	return SLAPD_ABANDON;

/* Turn off the refreshing flag */	} else {
ss->ss_so->s_flags ^= PS_IS_REFRESHING;	/* Turn off the refreshing flag */
	ss->ss_so->s_flags ^= PS_IS_REFRESHING;

syncprov_detach_op( op, ss->ss_so, on );	syncprov_detach_op( op, ss->ss_so, on );

/* If there are queued responses, fire them off */	ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
if ( ss->ss_so->s_res )
syncprov_qstart( ss->ss_so );	/* If there are queued responses, fire them off */
	if ( ss->ss_so->s_res )
	syncprov_qstart( ss->ss_so );
	}
ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );	ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );

return LDAP_SUCCESS;	return LDAP_SUCCESS;
Line 1939 syncprov_op_search( Operation *op, SlapR	Line 2105 syncprov_op_search( Operation *op, SlapR
slap_overinst on = (slap_overinst )op->o_bd->bd_info;	slap_overinst on = (slap_overinst )op->o_bd->bd_info;
syncprov_info_t si = (syncprov_info_t )on->on_bi.bi_private;	syncprov_info_t si = (syncprov_info_t )on->on_bi.bi_private;
slap_callback *cb;	slap_callback *cb;
int gotstate = 0, nochange = 0, do_present;	int gotstate = 0, changed = 0, do_present = 0;
syncops *sop = NULL;	syncops *sop = NULL;
searchstate *ss;	searchstate *ss;
sync_control *srs;	sync_control *srs;
struct berval ctxcsn;	BerVarray ctxcsn;
char csnbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];	int i, *sids, numcsns;
	struct berval mincsn;

if ( !(op->o_sync_mode & SLAP_SYNC_REFRESH) ) return SLAP_CB_CONTINUE;	if ( !(op->o_sync_mode & SLAP_SYNC_REFRESH) ) return SLAP_CB_CONTINUE;

Line 1953 syncprov_op_search( Operation *op, SlapR	Line 2120 syncprov_op_search( Operation *op, SlapR
return rs->sr_err;	return rs->sr_err;
}	}

do_present = si->si_nopres ? 0 : 1;

srs = op->o_controls[slap_cids.sc_LDAPsync];	srs = op->o_controls[slap_cids.sc_LDAPsync];
op->o_managedsait = SLAP_CONTROL_NONCRITICAL;	op->o_managedsait = SLAP_CONTROL_NONCRITICAL;

Line 1988 syncprov_op_search( Operation *op, SlapR	Line 2153 syncprov_op_search( Operation *op, SlapR
*sop = so;	*sop = so;
ldap_pvt_thread_mutex_init( &sop->s_mutex );	ldap_pvt_thread_mutex_init( &sop->s_mutex );
sop->s_rid = srs->sr_state.rid;	sop->s_rid = srs->sr_state.rid;
	sop->s_sid = srs->sr_state.sid;
sop->s_inuse = 1;	sop->s_inuse = 1;

ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );	ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
Line 1998 syncprov_op_search( Operation *op, SlapR	Line 2164 syncprov_op_search( Operation *op, SlapR

/* snapshot the ctxcsn */	/* snapshot the ctxcsn */
ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );	ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
strcpy( csnbuf, si->si_ctxcsnbuf );	numcsns = si->si_numcsns;
ctxcsn.bv_len = si->si_ctxcsn.bv_len;	if ( numcsns ) {
	ber_bvarray_dup_x( &ctxcsn, si->si_ctxcsn, op->o_tmpmemctx );
	sids = op->o_tmpalloc( numcsns * sizeof(int), op->o_tmpmemctx );
	for ( i=0; i<numcsns; i++ )
	sids[i] = si->si_sids[i];
	} else {
	ctxcsn = NULL;
	sids = NULL;
	}
ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );	ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
ctxcsn.bv_val = csnbuf;

/* If we have a cookie, handle the PRESENT lookups */	/* If we have a cookie, handle the PRESENT lookups */
if ( !BER_BVISNULL( &srs->sr_state.ctxcsn )) {	if ( srs->sr_state.ctxcsn ) {
sessionlog *sl;	sessionlog *sl;
	int i, j;

/* The cookie was validated when it was parsed, just use it */	/* If we don't have any CSN of our own yet, pretend nothing
	* has changed.
	*/
	if ( !numcsns )
	goto no_change;

/* If just Refreshing and nothing has changed, shortcut it */	if ( !si->si_nopres )
if ( bvmatch( &srs->sr_state.ctxcsn, &ctxcsn )) {	do_present = SS_PRESENT;
nochange = 1;
if ( !(op->o_sync_mode & SLAP_SYNC_PERSIST) ) {	/* If there are SIDs we don't recognize in the cookie, drop them */
LDAPControl *ctrls[2];	for (i=0; i<srs->sr_state.numcsns; ) {
	for (j=0; j<numcsns; j++) {
ctrls[0] = NULL;	if ( srs->sr_state.sids[i] == sids[j] ) {
ctrls[1] = NULL;	break;
syncprov_done_ctrl( op, rs, ctrls, 0, 0,	}
NULL, LDAP_SYNC_REFRESH_DELETES );	}
rs->sr_ctrls = ctrls;	/* not found */
rs->sr_err = LDAP_SUCCESS;	if ( j == numcsns ) {
send_ldap_result( op, rs );	struct berval tmp = srs->sr_state.ctxcsn[i];
rs->sr_ctrls = NULL;	j = srs->sr_state.numcsns - 1;
return rs->sr_err;	srs->sr_state.ctxcsn[i] = srs->sr_state.ctxcsn[j];
	tmp.bv_len = 0;
	srs->sr_state.ctxcsn[j] = tmp;
	srs->sr_state.numcsns = j;
	srs->sr_state.sids[i] = srs->sr_state.sids[j];
	continue;
	}
	i++;
	}

	/* Find the smallest CSN */
	mincsn = srs->sr_state.ctxcsn[0];
	for ( i=1; i<srs->sr_state.numcsns; i++ ) {
	if ( ber_bvcmp( &mincsn, &srs->sr_state.ctxcsn[i] ) > 0 )
	mincsn = srs->sr_state.ctxcsn[i];
	}

	/* If nothing has changed, shortcut it */
	if ( srs->sr_state.numcsns == numcsns ) {
	int i, j;
	for ( i=0; i<srs->sr_state.numcsns; i++ ) {
	for ( j=0; j<numcsns; j++ ) {
	if ( srs->sr_state.sids[i] != sids[j] )
	continue;
	if ( !bvmatch( &srs->sr_state.ctxcsn[i], &ctxcsn[j] ))
	changed = SS_CHANGED;
	break;
	}
	if ( changed )
	break;
	}
	if ( !changed ) {
	do_present = 0;
	no_change: if ( !(op->o_sync_mode & SLAP_SYNC_PERSIST) ) {
	LDAPControl *ctrls[2];

	ctrls[0] = NULL;
	ctrls[1] = NULL;
	syncprov_done_ctrl( op, rs, ctrls, 0, 0,
	NULL, LDAP_SYNC_REFRESH_DELETES );
	rs->sr_ctrls = ctrls;
	rs->sr_err = LDAP_SUCCESS;
	send_ldap_result( op, rs );
	rs->sr_ctrls = NULL;
	return rs->sr_err;
	}
	goto shortcut;
}	}
goto shortcut;
}	}
/* Do we have a sessionlog for this search? */	/* Do we have a sessionlog for this search? */
sl=si->si_logs;	sl=si->si_logs;
Line 2034 syncprov_op_search( Operation *op, SlapR	Line 2257 syncprov_op_search( Operation *op, SlapR
/* Are there any log entries, and is the consumer state	/* Are there any log entries, and is the consumer state
* present in the session log?	* present in the session log?
*/	*/
if ( sl->sl_num > 0 && ber_bvcmp( &srs->sr_state.ctxcsn, &sl->sl_mincsn ) >= 0 ) {	if ( sl->sl_num > 0 && ber_bvcmp( &mincsn, &sl->sl_mincsn ) >= 0 ) {
do_present = 0;	do_present = 0;
/* mutex is unlocked in playlog */	/* mutex is unlocked in playlog */
syncprov_playlog( op, rs, sl, srs, &ctxcsn );	syncprov_playlog( op, rs, sl, srs, ctxcsn, numcsns, sids );
} else {	} else {
ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );	ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
}	}
Line 2047 syncprov_op_search( Operation *op, SlapR	Line 2270 syncprov_op_search( Operation *op, SlapR
/* No, so a reload is required */	/* No, so a reload is required */
/* the 2.2 consumer doesn't send this hint */	/* the 2.2 consumer doesn't send this hint */
if ( si->si_usehint && srs->sr_rhint == 0 ) {	if ( si->si_usehint && srs->sr_rhint == 0 ) {
	if ( ctxcsn )
	ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
	if ( sids )
	op->o_tmpfree( sids, op->o_tmpmemctx );
send_ldap_error( op, rs, LDAP_SYNC_REFRESH_REQUIRED, "sync cookie is stale" );	send_ldap_error( op, rs, LDAP_SYNC_REFRESH_REQUIRED, "sync cookie is stale" );
return rs->sr_err;	return rs->sr_err;
}	}
Line 2055 syncprov_op_search( Operation *op, SlapR	Line 2282 syncprov_op_search( Operation *op, SlapR
/* If changed and doing Present lookup, send Present UUIDs */	/* If changed and doing Present lookup, send Present UUIDs */
if ( do_present && syncprov_findcsn( op, FIND_PRESENT ) !=	if ( do_present && syncprov_findcsn( op, FIND_PRESENT ) !=
LDAP_SUCCESS ) {	LDAP_SUCCESS ) {
	if ( ctxcsn )
	ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
	if ( sids )
	op->o_tmpfree( sids, op->o_tmpmemctx );
send_ldap_result( op, rs );	send_ldap_result( op, rs );
return rs->sr_err;	return rs->sr_err;
}	}
}	}
	} else {
	/* No consumer state, assume something has changed */
	changed = SS_CHANGED;
}	}

shortcut:	shortcut:
Line 2070 shortcut:	Line 2304 shortcut:
}	}

/* If something changed, find the changes */	/* If something changed, find the changes */
if ( gotstate && !nochange ) {	if ( gotstate && changed ) {
Filter fand, fava;	Filter fand, fava;

fand = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );	fand = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
Line 2084 shortcut:	Line 2318 shortcut:
#ifdef LDAP_COMP_MATCH	#ifdef LDAP_COMP_MATCH
fava->f_ava->aa_cf = NULL;	fava->f_ava->aa_cf = NULL;
#endif	#endif
ber_dupbv_x( &fava->f_ava->aa_value, &srs->sr_state.ctxcsn, op->o_tmpmemctx );	ber_dupbv_x( &fava->f_ava->aa_value, &mincsn, op->o_tmpmemctx );
fava->f_next = op->ors_filter;	fava->f_next = op->ors_filter;
op->ors_filter = fand;	op->ors_filter = fand;
filter2bv_x( op, op->ors_filter, &op->ors_filterstr );	filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
Line 2097 shortcut:	Line 2331 shortcut:
ss = (searchstate *)(cb+1);	ss = (searchstate *)(cb+1);
ss->ss_on = on;	ss->ss_on = on;
ss->ss_so = sop;	ss->ss_so = sop;
ss->ss_present = do_present;	ss->ss_flags = do_present \| changed;
ss->ss_ctxcsn.bv_len = ctxcsn.bv_len;	ss->ss_ctxcsn = ctxcsn;
ss->ss_ctxcsn.bv_val = ss->ss_csnbuf;	ss->ss_numcsns = numcsns;
strcpy( ss->ss_ctxcsn.bv_val, ctxcsn.bv_val );	ss->ss_sids = sids;
cb->sc_response = syncprov_search_response;	cb->sc_response = syncprov_search_response;
cb->sc_cleanup = syncprov_search_cleanup;	cb->sc_cleanup = syncprov_search_cleanup;
cb->sc_private = ss;	cb->sc_private = ss;
cb->sc_next = op->o_callback;	cb->sc_next = op->o_callback;
op->o_callback = cb;	op->o_callback = cb;

#if 0 /* I don't think we need to shortcircuit back-bdb any more */
op->o_sync_mode &= SLAP_CONTROL_MASK;
#endif

/* If this is a persistent search and no changes were reported during	/* If this is a persistent search and no changes were reported during
* the refresh phase, just invoke the response callback to transition	* the refresh phase, just invoke the response callback to transition
* us into persist phase	* us into persist phase
*/	*/
if ( nochange ) {	if ( !changed ) {
rs->sr_err = LDAP_SUCCESS;	rs->sr_err = LDAP_SUCCESS;
rs->sr_nentries = 0;	rs->sr_nentries = 0;
send_ldap_result( op, rs );	send_ldap_result( op, rs );
Line 2132 syncprov_operational(	Line 2362 syncprov_operational(
slap_overinst on = (slap_overinst )op->o_bd->bd_info;	slap_overinst on = (slap_overinst )op->o_bd->bd_info;
syncprov_info_t si = (syncprov_info_t )on->on_bi.bi_private;	syncprov_info_t si = (syncprov_info_t )on->on_bi.bi_private;

	/* This prevents generating unnecessarily; frontend will strip
	* any statically stored copy.
	*/
	if ( op->o_sync != SLAP_CONTROL_NONE )
	return SLAP_CB_CONTINUE;

if ( rs->sr_entry &&	if ( rs->sr_entry &&
dn_match( &rs->sr_entry->e_nname, op->o_bd->be_nsuffix )) {	dn_match( &rs->sr_entry->e_nname, op->o_bd->be_nsuffix )) {

Line 2144 syncprov_operational(	Line 2380 syncprov_operational(
break;	break;
}	}

if ( !a ) {	ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
for ( ap = &rs->sr_operational_attrs; ap; ap=&(ap)->a_next );	if ( si->si_ctxcsn ) {
	if ( !a ) {
	for ( ap = &rs->sr_operational_attrs; *ap;
	ap=&(*ap)->a_next );

a = ch_malloc( sizeof(Attribute));	a = attr_alloc( slap_schema.si_ad_contextCSN );
a->a_desc = slap_schema.si_ad_contextCSN;	*ap = a;
a->a_vals = ch_malloc( 2 * sizeof(struct berval));	}
a->a_vals[1].bv_val = NULL;
a->a_nvals = a->a_vals;
a->a_next = NULL;
a->a_flags = 0;
*ap = a;
}

ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );	if ( !ap ) {
if ( !ap ) {	if ( !rs->sr_flags & REP_ENTRY_MODIFIABLE ) {
strcpy( a->a_vals[0].bv_val, si->si_ctxcsnbuf );	rs->sr_entry = entry_dup( rs->sr_entry );
} else {	rs->sr_flags \|=
ber_dupbv( &a->a_vals[0], &si->si_ctxcsn );	REP_ENTRY_MODIFIABLE\|REP_ENTRY_MUSTBEFREED;
	a = attr_find( rs->sr_entry->e_attrs,
	slap_schema.si_ad_contextCSN );
	}
	if ( a->a_nvals != a->a_vals ) {
	ber_bvarray_free( a->a_nvals );
	}
	a->a_nvals = NULL;
	ber_bvarray_free( a->a_vals );
	a->a_vals = NULL;
	a->a_numvals = 0;
	}
	attr_valadd( a, si->si_ctxcsn, si->si_ctxcsn, si->si_numcsns );
}	}
ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );	ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
}	}
Line 2220 sp_cf_gen(ConfigArgs *c)	Line 2465 sp_cf_gen(ConfigArgs *c)
case SP_CHKPT:	case SP_CHKPT:
if ( si->si_chkops \|\| si->si_chktime ) {	if ( si->si_chkops \|\| si->si_chktime ) {
struct berval bv;	struct berval bv;
bv.bv_len = sprintf( c->msg, "%d %d",	bv.bv_len = snprintf( c->cr_msg, sizeof( c->cr_msg ),
si->si_chkops, si->si_chktime );	"%d %d", si->si_chkops, si->si_chktime );
bv.bv_val = c->msg;	if ( bv.bv_len < 0 \|\| bv.bv_len >= sizeof( c->cr_msg ) ) {
value_add_one( &c->rvalue_vals, &bv );	rc = 1;
	} else {
	bv.bv_val = c->cr_msg;
	value_add_one( &c->rvalue_vals, &bv );
	}
} else {	} else {
rc = 1;	rc = 1;
}	}
Line 2281 sp_cf_gen(ConfigArgs *c)	Line 2530 sp_cf_gen(ConfigArgs *c)
switch ( c->type ) {	switch ( c->type ) {
case SP_CHKPT:	case SP_CHKPT:
if ( lutil_atoi( &si->si_chkops, c->argv[1] ) != 0 ) {	if ( lutil_atoi( &si->si_chkops, c->argv[1] ) != 0 ) {
snprintf( c->msg, sizeof( c->msg ), "%s unable to parse checkpoint ops # \"%s\"",	snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint ops # \"%s\"",
c->argv[0], c->argv[1] );	c->argv[0], c->argv[1] );
Debug( LDAP_DEBUG_CONFIG\|LDAP_DEBUG_NONE,	Debug( LDAP_DEBUG_CONFIG\|LDAP_DEBUG_NONE,
"%s: %s\n", c->log, c->msg, 0 );	"%s: %s\n", c->log, c->cr_msg, 0 );
return ARG_BAD_CONF;	return ARG_BAD_CONF;
}	}
if ( si->si_chkops <= 0 ) {	if ( si->si_chkops <= 0 ) {
snprintf( c->msg, sizeof( c->msg ), "%s invalid checkpoint ops # \"%d\"",	snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint ops # \"%d\"",
c->argv[0], si->si_chkops );	c->argv[0], si->si_chkops );
Debug( LDAP_DEBUG_CONFIG\|LDAP_DEBUG_NONE,	Debug( LDAP_DEBUG_CONFIG\|LDAP_DEBUG_NONE,
"%s: %s\n", c->log, c->msg, 0 );	"%s: %s\n", c->log, c->cr_msg, 0 );
return ARG_BAD_CONF;	return ARG_BAD_CONF;
}	}
if ( lutil_atoi( &si->si_chktime, c->argv[2] ) != 0 ) {	if ( lutil_atoi( &si->si_chktime, c->argv[2] ) != 0 ) {
snprintf( c->msg, sizeof( c->msg ), "%s unable to parse checkpoint time \"%s\"",	snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint time \"%s\"",
c->argv[0], c->argv[1] );	c->argv[0], c->argv[1] );
Debug( LDAP_DEBUG_CONFIG\|LDAP_DEBUG_NONE,	Debug( LDAP_DEBUG_CONFIG\|LDAP_DEBUG_NONE,
"%s: %s\n", c->log, c->msg, 0 );	"%s: %s\n", c->log, c->cr_msg, 0 );
return ARG_BAD_CONF;	return ARG_BAD_CONF;
}	}
if ( si->si_chktime <= 0 ) {	if ( si->si_chktime <= 0 ) {
snprintf( c->msg, sizeof( c->msg ), "%s invalid checkpoint time \"%d\"",	snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint time \"%d\"",
c->argv[0], si->si_chkops );	c->argv[0], si->si_chkops );
Debug( LDAP_DEBUG_CONFIG\|LDAP_DEBUG_NONE,	Debug( LDAP_DEBUG_CONFIG\|LDAP_DEBUG_NONE,
"%s: %s\n", c->log, c->msg, 0 );	"%s: %s\n", c->log, c->cr_msg, 0 );
return ARG_BAD_CONF;	return ARG_BAD_CONF;
}	}
si->si_chktime *= 60;	si->si_chktime *= 60;
Line 2315 sp_cf_gen(ConfigArgs *c)	Line 2564 sp_cf_gen(ConfigArgs *c)
int size = c->value_int;	int size = c->value_int;

if ( size < 0 ) {	if ( size < 0 ) {
snprintf( c->msg, sizeof( c->msg ), "%s size %d is negative",	snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s size %d is negative",
c->argv[0], size );	c->argv[0], size );
Debug( LDAP_DEBUG_CONFIG\|LDAP_DEBUG_NONE,	Debug( LDAP_DEBUG_CONFIG\|LDAP_DEBUG_NONE,
"%s: %s\n", c->log, c->msg, 0 );	"%s: %s\n", c->log, c->cr_msg, 0 );
return ARG_BAD_CONF;	return ARG_BAD_CONF;
}	}
sl = si->si_logs;	sl = si->si_logs;
Line 2362 syncprov_db_otask(	Line 2611 syncprov_db_otask(
*/	*/
static int	static int
syncprov_db_open(	syncprov_db_open(
BackendDB *be	BackendDB *be,
	ConfigReply *cr
)	)
{	{
slap_overinst on = (slap_overinst ) be->bd_info;	slap_overinst on = (slap_overinst ) be->bd_info;
syncprov_info_t si = (syncprov_info_t )on->on_bi.bi_private;	syncprov_info_t si = (syncprov_info_t )on->on_bi.bi_private;

Connection conn = { 0 };	Connection conn = { 0 };
OperationBuffer opbuf = { 0 };	OperationBuffer opbuf;
char ctxcsnbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];	Operation *op;
Operation op = (Operation ) &opbuf;	Entry *e = NULL;
Entry *e;
Attribute *a;	Attribute *a;
int rc;	int rc;
void *thrctx = NULL;	void *thrctx = NULL;
Line 2393 syncprov_db_open(	Line 2642 syncprov_db_open(
}	}

thrctx = ldap_pvt_thread_pool_context();	thrctx = ldap_pvt_thread_pool_context();
connection_fake_init( &conn, op, thrctx );	connection_fake_init( &conn, &opbuf, thrctx );
	op = &opbuf.ob_op;
op->o_bd = be;	op->o_bd = be;
op->o_dn = be->be_rootdn;	op->o_dn = be->be_rootdn;
op->o_ndn = be->be_rootndn;	op->o_ndn = be->be_rootndn;

ctxcsnbuf[0] = '\0';	rc = overlay_entry_get_ov( op, be->be_nsuffix, NULL,
	slap_schema.si_ad_contextCSN, 0, &e, on );
op->o_bd->bd_info = on->on_info->oi_orig;
rc = be_entry_get_rw( op, be->be_nsuffix, NULL,
slap_schema.si_ad_contextCSN, 0, &e );

if ( e ) {	if ( e ) {
ldap_pvt_thread_t tid;	ldap_pvt_thread_t tid;

a = attr_find( e->e_attrs, slap_schema.si_ad_contextCSN );	a = attr_find( e->e_attrs, slap_schema.si_ad_contextCSN );
if ( a ) {	if ( a ) {
si->si_ctxcsn.bv_len = a->a_nvals[0].bv_len;	ber_bvarray_dup_x( &si->si_ctxcsn, a->a_vals, NULL );
if ( si->si_ctxcsn.bv_len >= sizeof(si->si_ctxcsnbuf ))	si->si_numcsns = a->a_numvals;
si->si_ctxcsn.bv_len = sizeof(si->si_ctxcsnbuf)-1;	si->si_sids = slap_parse_csn_sids( si->si_ctxcsn, a->a_numvals, NULL );
strncpy( si->si_ctxcsnbuf, a->a_nvals[0].bv_val,	}
si->si_ctxcsn.bv_len );	overlay_entry_release_ov( op, e, 0, on );
si->si_ctxcsnbuf[si->si_ctxcsn.bv_len] = '\0';	if ( si->si_ctxcsn ) {
strcpy( ctxcsnbuf, si->si_ctxcsnbuf );
}
be_entry_release_rw( op, e, 0 );
if ( !BER_BVISEMPTY( &si->si_ctxcsn ) ) {
op->o_bd->bd_info = (BackendInfo *)on;
op->o_req_dn = be->be_suffix[0];	op->o_req_dn = be->be_suffix[0];
op->o_req_ndn = be->be_nsuffix[0];	op->o_req_ndn = be->be_nsuffix[0];
op->ors_scope = LDAP_SCOPE_SUBTREE;	op->ors_scope = LDAP_SCOPE_SUBTREE;
Line 2428 syncprov_db_open(	Line 2670 syncprov_db_open(
}	}
}	}

if ( BER_BVISEMPTY( &si->si_ctxcsn ) ) {	/* Didn't find a contextCSN, should we generate one? */
	if ( !si->si_ctxcsn ) {
	char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
	struct berval csn;

if ( SLAP_SYNC_SHADOW( op->o_bd )) {	if ( SLAP_SYNC_SHADOW( op->o_bd )) {
/* If we're also a consumer, and we didn't get a contextCSN,	/* If we're also a consumer, then don't generate anything.
* then don't generate anything, wait for our provider to send it	* Wait for our provider to send it to us, or for a local
* to us.	* modify if we have multimaster.
*/	*/
goto out;	goto out;
}	}
si->si_ctxcsn.bv_len = sizeof( si->si_ctxcsnbuf );	csn.bv_val = csnbuf;
slap_get_csn( op, &si->si_ctxcsn, 0 );	csn.bv_len = sizeof( csnbuf );
}	slap_get_csn( op, &csn, 0 );
	value_add_one( &si->si_ctxcsn, &csn );
	si->si_numcsns = 1;
	si->si_sids = ch_malloc( sizeof(int) );
	si->si_sids[0] = slap_serverID;

/* If our ctxcsn is different from what was read from the root	/* make sure we do a checkpoint on close */
* entry, make sure we do a checkpoint on close
*/
if ( strcmp( si->si_ctxcsnbuf, ctxcsnbuf )) {
si->si_numops++;	si->si_numops++;
}	}

Line 2456 out:	Line 2703 out:
*/	*/
static int	static int
syncprov_db_close(	syncprov_db_close(
BackendDB *be	BackendDB *be,
	ConfigReply *cr
)	)
{	{
slap_overinst on = (slap_overinst ) be->bd_info;	slap_overinst on = (slap_overinst ) be->bd_info;
Line 2466 syncprov_db_close(	Line 2714 syncprov_db_close(
return 0;	return 0;
}	}
if ( si->si_numops ) {	if ( si->si_numops ) {
Connection conn;	Connection conn = {0};
OperationBuffer opbuf;	OperationBuffer opbuf;
Operation op = (Operation ) &opbuf;	Operation *op;
SlapReply rs = {REP_RESULT};	SlapReply rs = {REP_RESULT};
void *thrctx;	void *thrctx;

thrctx = ldap_pvt_thread_pool_context();	thrctx = ldap_pvt_thread_pool_context();
connection_fake_init( &conn, op, thrctx );	connection_fake_init( &conn, &opbuf, thrctx );
	op = &opbuf.ob_op;
op->o_bd = be;	op->o_bd = be;
op->o_dn = be->be_rootdn;	op->o_dn = be->be_rootdn;
op->o_ndn = be->be_rootndn;	op->o_ndn = be->be_rootndn;
Line 2485 syncprov_db_close(	Line 2734 syncprov_db_close(

static int	static int
syncprov_db_init(	syncprov_db_init(
BackendDB *be	BackendDB *be,
	ConfigReply *cr
)	)
{	{
slap_overinst on = (slap_overinst )be->bd_info;	slap_overinst on = (slap_overinst )be->bd_info;
Line 2503 syncprov_db_init(	Line 2753 syncprov_db_init(
ldap_pvt_thread_rdwr_init( &si->si_csn_rwlock );	ldap_pvt_thread_rdwr_init( &si->si_csn_rwlock );
ldap_pvt_thread_mutex_init( &si->si_ops_mutex );	ldap_pvt_thread_mutex_init( &si->si_ops_mutex );
ldap_pvt_thread_mutex_init( &si->si_mods_mutex );	ldap_pvt_thread_mutex_init( &si->si_mods_mutex );
si->si_ctxcsn.bv_val = si->si_ctxcsnbuf;

csn_anlist[0].an_desc = slap_schema.si_ad_entryCSN;	csn_anlist[0].an_desc = slap_schema.si_ad_entryCSN;
csn_anlist[0].an_name = slap_schema.si_ad_entryCSN->ad_cname;	csn_anlist[0].an_name = slap_schema.si_ad_entryCSN->ad_cname;
Line 2518 syncprov_db_init(	Line 2767 syncprov_db_init(

static int	static int
syncprov_db_destroy(	syncprov_db_destroy(
BackendDB *be	BackendDB *be,
	ConfigReply *cr
)	)
{	{
slap_overinst on = (slap_overinst )be->bd_info;	slap_overinst on = (slap_overinst )be->bd_info;
Line 2536 syncprov_db_destroy(	Line 2786 syncprov_db_destroy(

ch_free( si->si_logs );	ch_free( si->si_logs );
}	}
	if ( si->si_ctxcsn )
	ber_bvarray_free( si->si_ctxcsn );
	if ( si->si_sids )
	ch_free( si->si_sids );
ldap_pvt_thread_mutex_destroy( &si->si_mods_mutex );	ldap_pvt_thread_mutex_destroy( &si->si_mods_mutex );
ldap_pvt_thread_mutex_destroy( &si->si_ops_mutex );	ldap_pvt_thread_mutex_destroy( &si->si_ops_mutex );
ldap_pvt_thread_rdwr_destroy( &si->si_csn_rwlock );	ldap_pvt_thread_rdwr_destroy( &si->si_csn_rwlock );
Line 2569 static int syncprov_parseCtrl (	Line 2823 static int syncprov_parseCtrl (
return LDAP_PROTOCOL_ERROR;	return LDAP_PROTOCOL_ERROR;
}	}

	if ( BER_BVISNULL( &ctrl->ldctl_value ) ) {
	rs->sr_text = "Sync control value is absent";
	return LDAP_PROTOCOL_ERROR;
	}

if ( BER_BVISEMPTY( &ctrl->ldctl_value ) ) {	if ( BER_BVISEMPTY( &ctrl->ldctl_value ) ) {
rs->sr_text = "Sync control value is empty (or absent)";	rs->sr_text = "Sync control value is empty";
return LDAP_PROTOCOL_ERROR;	return LDAP_PROTOCOL_ERROR;
}	}

Line 2628 static int syncprov_parseCtrl (	Line 2887 static int syncprov_parseCtrl (
sr->sr_rhint = rhint;	sr->sr_rhint = rhint;
if (!BER_BVISNULL(&cookie)) {	if (!BER_BVISNULL(&cookie)) {
ber_dupbv_x( &sr->sr_state.octet_str, &cookie, op->o_tmpmemctx );	ber_dupbv_x( &sr->sr_state.octet_str, &cookie, op->o_tmpmemctx );
slap_parse_sync_cookie( &sr->sr_state, op->o_tmpmemctx );	/* If parse fails, pretend no cookie was sent */
if ( sr->sr_state.rid == -1 ) {	if ( slap_parse_sync_cookie( &sr->sr_state, op->o_tmpmemctx ) \|\|
rs->sr_text = "Sync control : cookie parsing error";	sr->sr_state.rid == -1 ) {
return LDAP_PROTOCOL_ERROR;	if ( sr->sr_state.ctxcsn ) {
	ber_bvarray_free_x( sr->sr_state.ctxcsn, op->o_tmpmemctx );
	sr->sr_state.ctxcsn = NULL;
	}
	sr->sr_state.numcsns = 0;
}	}
}	}

Removed from v.1.56.2.42
changed lines
	Added in v.1.224