servers/slapd/overlays/syncprov.c - diff

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Diff for /servers/slapd/overlays/syncprov.c between versions 1.147 and 1.147.2.77

version 1.147, 2006/04/02 21:49:57	version 1.147.2.77, 2010/12/12 03:54:10
Line 1	Line 1
/* $OpenLDAP: pkg/ldap/servers/slapd/overlays/syncprov.c,v 1.146 2006/03/31 08:45:23 hyc Exp $ */	/* $OpenLDAP$ */
/* 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 2004-2006 The OpenLDAP Foundation.	* Copyright 2004-2010 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 28	Line 28
#include "config.h"	#include "config.h"
#include "ldap_rq.h"	#include "ldap_rq.h"

	#ifdef LDAP_DEVEL
	#define CHECK_CSN 1
	#endif

/* A modify request on a particular entry */	/* A modify request on a particular entry */
typedef struct modinst {	typedef struct modinst {
struct modinst *mi_next;	struct modinst *mi_next;
Line 44 typedef struct modtarget {	Line 48 typedef struct modtarget {
/* A queued result of a persistent search */	/* A queued result of a persistent search */
typedef struct syncres {	typedef struct syncres {
struct syncres *s_next;	struct syncres *s_next;
	Entry *s_e;
struct berval s_dn;	struct berval s_dn;
struct berval s_ndn;	struct berval s_ndn;
struct berval s_uuid;	struct berval s_uuid;
Line 59 typedef struct syncops {	Line 64 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
#define PS_IS_DETACHED 0x02	#define PS_IS_DETACHED 0x02
#define PS_WROTE_BASE 0x04	#define PS_WROTE_BASE 0x04
#define PS_FIND_BASE 0x08	#define PS_FIND_BASE 0x08
	#define PS_FIX_FILTER 0x10
	#define PS_TASK_QUEUED 0x20

int s_inuse; /* reference count */	int s_inuse; /* reference count */
struct syncres *s_res;	struct syncres *s_res;
struct syncres *s_restail;	struct syncres *s_restail;
struct re_s s_qtask; / task for playing psearch responses */
#define RUNQ_INTERVAL 36000 /* a long time */
ldap_pvt_thread_mutex_t s_mutex;	ldap_pvt_thread_mutex_t s_mutex;
} syncops;	} syncops;

Line 102 typedef struct slog_entry {	Line 108 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 117 typedef struct sessionlog {	Line 124 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 */
	struct berval si_contextdn;
	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 126 typedef struct syncprov_info_t {	Line 136 typedef struct syncprov_info_t {
time_t si_chklast; /* time of last checkpoint */	time_t si_chklast; /* time of last checkpoint */
Avlnode si_mods; / entries being modified */	Avlnode si_mods; / entries being modified */
sessionlog *si_logs;	sessionlog *si_logs;
ldap_pvt_thread_mutex_t si_csn_mutex;	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];	ldap_pvt_thread_mutex_t si_resp_mutex;
} syncprov_info_t;	} syncprov_info_t;

typedef struct opcookie {	typedef struct opcookie {
slap_overinst *son;	slap_overinst *son;
syncmatches *smatches;	syncmatches *smatches;
	modtarget *smt;
	Entry *se;
struct berval sdn; /* DN of entry, for deletes */	struct berval sdn; /* DN of entry, for deletes */
struct berval sndn;	struct berval sndn;
struct berval suuid; /* UUID of entry */	struct berval suuid; /* UUID of entry */
struct berval sctxcsn;	struct berval sctxcsn;
int sreference; /* Is the entry a reference? */	short osid; /* sid of op csn */
	short rsid; /* sid of relay */
	short sreference; /* Is the entry a reference? */
} opcookie;	} opcookie;

	typedef struct mutexint {
	ldap_pvt_thread_mutex_t mi_mutex;
	int mi_int;
	} mutexint;

typedef struct fbase_cookie {	typedef struct fbase_cookie {
struct berval fdn; / DN of a modified entry, for scope testing */	struct berval fdn; / DN of a modified entry, for scope testing */
syncops fss; / persistent search we're testing against */	syncops fss; / persistent search we're testing against */
Line 389 static struct berval generic_filterstr =	Line 408 static struct berval generic_filterstr =
static int	static int
syncprov_findbase( Operation op, fbase_cookie fc )	syncprov_findbase( Operation op, fbase_cookie fc )
{	{
opcookie *opc = op->o_callback->sc_private;
slap_overinst *on = opc->son;

/* Use basic parameters from syncrepl search, but use	/* Use basic parameters from syncrepl search, but use
* current op's threadctx / tmpmemctx	* current op's threadctx / tmpmemctx
*/	*/
Line 407 syncprov_findbase( Operation *op, fbase_	Line 423 syncprov_findbase( Operation *op, fbase_

fop = *fc->fss->s_op;	fop = *fc->fss->s_op;

	fop.o_bd = fop.o_bd->bd_self;
fop.o_hdr = op->o_hdr;	fop.o_hdr = op->o_hdr;
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;

Line 428 syncprov_findbase( Operation *op, fbase_	Line 444 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 = fop.o_bd->be_search( &fop, &frs );	rc = fop.o_bd->be_search( &fop, &frs );
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 495 findmax_cb( Operation op, SlapReply rs	Line 509 findmax_cb( Operation op, SlapReply rs
Attribute *a = attr_find( rs->sr_entry->e_attrs,	Attribute *a = attr_find( rs->sr_entry->e_attrs,
slap_schema.si_ad_entryCSN );	slap_schema.si_ad_entryCSN );

if ( a && ber_bvcmp( &a->a_vals[0], maxcsn ) > 0 ) {	if ( a && ber_bvcmp( &a->a_vals[0], maxcsn ) > 0 &&
	slap_parse_csn_sid( &a->a_vals[0] ) == slap_serverID ) {
maxcsn->bv_len = a->a_vals[0].bv_len;	maxcsn->bv_len = a->a_vals[0].bv_len;
strcpy( maxcsn->bv_val, a->a_vals[0].bv_val );	strcpy( maxcsn->bv_val, a->a_vals[0].bv_val );
}	}
Line 576 syncprov_findcsn( Operation *op, find_cs	Line 591 syncprov_findcsn( Operation *op, find_cs
slap_callback cb = {0};	slap_callback cb = {0};
Operation fop;	Operation fop;
SlapReply frs = { REP_RESULT };	SlapReply frs = { REP_RESULT };
char buf[LDAP_LUTIL_CSNSTR_BUFSIZE + STRLENOF("(entryCSN<=)")];	char buf[LDAP_PVT_CSNSTR_BUFSIZE + STRLENOF("(entryCSN<=)")];
char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];	char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
struct berval maxcsn;	struct berval maxcsn;
Filter cf, af;	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;

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 605 syncprov_findcsn( Operation *op, find_cs	Line 613 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 617 again:	Line 626 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;	/* If there are multiple CSNs, use the one with our serverID */
fop.ors_filterstr.bv_len = sprintf( buf, "(entryCSN>=%s)",	for ( i=0; i<si->si_numcsns; i++) {
cf.f_av_value.bv_val );	if ( slap_serverID == si->si_sids[i] ) {
	maxid = i;
	break;
	}
	}
	if ( i == si->si_numcsns ) {
	/* No match: this is multimaster, and none of the content in the DB
	* originated locally. Treat like no CSN.
	*/
	return LDAP_NO_SUCH_OBJECT;
	}
	cf.f_av_value = si->si_ctxcsn[maxid];
	fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
	"(entryCSN>=%s)", cf.f_av_value.bv_val );
	if ( 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 >= 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 651 again:	Line 689 again:
cb.sc_response = findcsn_cb;	cb.sc_response = findcsn_cb;
break;	break;
case FIND_PRESENT:	case FIND_PRESENT:
af.f_choice = LDAP_FILTER_AND;	fop.ors_filter = op->ors_filter;
af.f_next = NULL;	fop.ors_filterstr = op->ors_filterstr;
af.f_and = &cf;
cf.f_choice = LDAP_FILTER_LE;
cf.f_av_value = srs->sr_state.ctxcsn;
cf.f_next = op->ors_filter;
fop.ors_filter = ⁡
filter2bv_x( &fop, fop.ors_filter, &fop.ors_filterstr );
fop.ors_attrsonly = 0;	fop.ors_attrsonly = 0;
fop.ors_attrs = uuid_anlist;	fop.ors_attrs = uuid_anlist;
fop.ors_slimit = SLAP_NO_LIMIT;	fop.ors_slimit = SLAP_NO_LIMIT;
Line 680 again:	Line 712 again:
break;	break;
}	}

fop.o_bd->bd_info = on->on_info->oi_orig;	fop.o_bd->bd_info = (BackendInfo *)on->on_info;
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;	#ifdef CHECK_CSN
	Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
	assert( !syn->ssyn_validate( syn, &maxcsn ));
	#endif
	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 702 again:	Line 740 again:
break;	break;
case FIND_PRESENT:	case FIND_PRESENT:
op->o_tmpfree( pcookie.uuids, op->o_tmpmemctx );	op->o_tmpfree( pcookie.uuids, op->o_tmpmemctx );
op->o_tmpfree( fop.ors_filterstr.bv_val, op->o_tmpmemctx );
break;	break;
}	}

return rc;	return rc;
}	}

	/* Should find a place to cache these */
	static mutexint *get_mutexint()
	{
	mutexint *mi = ch_malloc( sizeof( mutexint ));
	ldap_pvt_thread_mutex_init( &mi->mi_mutex );
	mi->mi_int = 1;
	return mi;
	}

	static void inc_mutexint( mutexint *mi )
	{
	ldap_pvt_thread_mutex_lock( &mi->mi_mutex );
	mi->mi_int++;
	ldap_pvt_thread_mutex_unlock( &mi->mi_mutex );
	}

	/* return resulting counter */
	static int dec_mutexint( mutexint *mi )
	{
	int i;
	ldap_pvt_thread_mutex_lock( &mi->mi_mutex );
	i = --mi->mi_int;
	ldap_pvt_thread_mutex_unlock( &mi->mi_mutex );
	if ( !i ) {
	ldap_pvt_thread_mutex_destroy( &mi->mi_mutex );
	ch_free( mi );
	}
	return i;
	}

static void	static void
syncprov_free_syncop( syncops *so )	syncprov_free_syncop( syncops *so )
{	{
Line 732 syncprov_free_syncop( syncops *so )	Line 799 syncprov_free_syncop( syncops *so )
ch_free( so->s_base.bv_val );	ch_free( so->s_base.bv_val );
for ( sr=so->s_res; sr; sr=srnext ) {	for ( sr=so->s_res; sr; sr=srnext ) {
srnext = sr->s_next;	srnext = sr->s_next;
	if ( sr->s_e ) {
	if ( !dec_mutexint( sr->s_e->e_private )) {
	sr->s_e->e_private = NULL;
	entry_free( sr->s_e );
	}
	}
ch_free( sr );	ch_free( sr );
}	}
ldap_pvt_thread_mutex_destroy( &so->s_mutex );	ldap_pvt_thread_mutex_destroy( &so->s_mutex );
Line 740 syncprov_free_syncop( syncops *so )	Line 813 syncprov_free_syncop( syncops *so )

/* Send a persistent search response */	/* Send a persistent search response */
static int	static int
syncprov_sendresp( Operation op, opcookie opc, syncops *so,	syncprov_sendresp( Operation op, opcookie opc, syncops *so, int mode )
Entry **e, int mode )
{	{
slap_overinst *on = opc->son;	slap_overinst *on = opc->son;

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

Line 755 syncprov_sendresp( Operation *op, opcook	Line 827 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 );	if ( !BER_BVISNULL( &opc->sctxcsn )) {
	csns[0] = opc->sctxcsn;
	BER_BVZERO( &csns[1] );
	slap_compose_sync_cookie( op, &cookie, csns, so->s_rid, slap_serverID ? slap_serverID : -1 );
	}

	#ifdef LDAP_DEBUG
	if ( so->s_sid > 0 ) {
	Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: to=%03x, cookie=%s\n",
	so->s_sid, cookie.bv_val ? cookie.bv_val : "", 0 );
	} else {
	Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: cookie=%s\n",
	cookie.bv_val ? cookie.bv_val : "", 0, 0 );
	}
	#endif

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;
a_uuid.a_nvals = &opc->suuid;	a_uuid.a_nvals = &opc->suuid;
rs.sr_err = syncprov_state_ctrl( op, &rs, &e_uuid,	rs.sr_err = syncprov_state_ctrl( op, &rs, &e_uuid,
mode, ctrls, 0, 1, &cookie );	mode, ctrls, 0, 1, &cookie );
op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );	if ( !BER_BVISNULL( &cookie )) {
	op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
	}

rs.sr_ctrls = ctrls;	rs.sr_ctrls = ctrls;
op->o_bd->bd_info = (BackendInfo *)on->on_info;	rs.sr_entry = &e_uuid;
	if ( mode == LDAP_SYNC_ADD \|\| mode == LDAP_SYNC_MODIFY ) {
	e_uuid = *opc->se;
	e_uuid.e_private = NULL;
	}

switch( mode ) {	switch( mode ) {
case LDAP_SYNC_ADD:	case LDAP_SYNC_ADD:
rs.sr_entry = *e;	if ( opc->sreference && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
if ( rs.sr_entry->e_private )
rs.sr_flags = REP_ENTRY_MUSTRELEASE;
if ( opc->sreference ) {
rs.sr_ref = get_entry_referrals( op, rs.sr_entry );	rs.sr_ref = get_entry_referrals( op, rs.sr_entry );
send_search_reference( op, &rs );	rs.sr_err = send_search_reference( op, &rs );
ber_bvarray_free( rs.sr_ref );	ber_bvarray_free( rs.sr_ref );
if ( !rs.sr_entry )
*e = NULL;
break;	break;
}	}
/* fallthru */	/* fallthru */
case LDAP_SYNC_MODIFY:	case LDAP_SYNC_MODIFY:
rs.sr_entry = *e;
if ( rs.sr_entry->e_private )
rs.sr_flags = REP_ENTRY_MUSTRELEASE;
rs.sr_attrs = op->ors_attrs;	rs.sr_attrs = op->ors_attrs;
send_search_entry( op, &rs );	rs.sr_err = send_search_entry( op, &rs );
if ( !rs.sr_entry )
*e = NULL;
break;	break;
case LDAP_SYNC_DELETE:	case LDAP_SYNC_DELETE:
e_uuid.e_attrs = NULL;	e_uuid.e_attrs = NULL;
e_uuid.e_name = opc->sdn;	e_uuid.e_name = opc->sdn;
e_uuid.e_nname = opc->sndn;	e_uuid.e_nname = opc->sndn;
rs.sr_entry = &e_uuid;	if ( opc->sreference && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
if ( opc->sreference ) {
struct berval bv = BER_BVNULL;	struct berval bv = BER_BVNULL;
rs.sr_ref = &bv;	rs.sr_ref = &bv;
send_search_reference( op, &rs );	rs.sr_err = send_search_reference( op, &rs );
} else {	} else {
send_search_entry( op, &rs );	rs.sr_err = send_search_entry( op, &rs );
}	}
break;	break;
default:	default:
Line 807 syncprov_sendresp( Operation *op, opcook	Line 889 syncprov_sendresp( Operation *op, opcook
}	}
/* In case someone else freed it already? */	/* In case someone else freed it already? */
if ( rs.sr_ctrls ) {	if ( rs.sr_ctrls ) {
op->o_tmpfree( rs.sr_ctrls[0], op->o_tmpmemctx );	int i;
	for ( i=0; rs.sr_ctrls[i]; i++ ) {
	if ( rs.sr_ctrls[i] == ctrls[0] ) {
	op->o_tmpfree( ctrls[0]->ldctl_value.bv_val, op->o_tmpmemctx );
	ctrls[0]->ldctl_value.bv_val = NULL;
	break;
	}
	}
rs.sr_ctrls = NULL;	rs.sr_ctrls = NULL;
}	}

return rs.sr_err;	return rs.sr_err;
}	}

	static void
	syncprov_qstart( syncops *so );

/* 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, syncops so )
{	{
	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 (;;) {	do {
ldap_pvt_thread_mutex_lock( &so->s_mutex );	ldap_pvt_thread_mutex_lock( &so->s_mutex );
sr = so->s_res;	sr = so->s_res;
if ( sr )	if ( sr )
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;	if ( sr->s_mode == LDAP_SYNC_NEW_COOKIE ) {
opc.sndn = sr->s_ndn;	SlapReply rs = { REP_INTERMEDIATE };
opc.suuid = sr->s_uuid;
opc.sctxcsn = sr->s_csn;	rc = syncprov_sendinfo( op, &rs, LDAP_TAG_SYNC_NEW_COOKIE,
opc.sreference = sr->s_isreference;	&sr->s_csn, 0, NULL, 0 );
e = NULL;	} else {
	opc.sdn = sr->s_dn;
if ( sr->s_mode != LDAP_SYNC_DELETE ) {	opc.sndn = sr->s_ndn;
rc = be_entry_get_rw( op, &opc.sndn, NULL, NULL, 0, &e );	opc.suuid = sr->s_uuid;
if ( rc ) {	opc.sctxcsn = sr->s_csn;
ch_free( sr );	opc.sreference = sr->s_isreference;
continue;	opc.se = sr->s_e;
}
}	rc = syncprov_sendresp( op, &opc, so, sr->s_mode );
rc = syncprov_sendresp( op, &opc, so, &e, sr->s_mode );

if ( e ) {	}
be_entry_release_rw( op, e, 0 );	if ( sr->s_e ) {
	if ( !dec_mutexint( sr->s_e->e_private )) {
	sr->s_e->e_private = NULL;
	entry_free ( sr->s_e );
	}
}	}

ch_free( sr );	ch_free( sr );

if ( rc )	/* Exit loop with mutex held */
break;	ldap_pvt_thread_mutex_lock( &so->s_mutex );

	} while (0);

	/* We now only send one change at a time, to prevent one
	* psearch from hogging all the CPU. Resubmit this task if
	* there are more responses queued and no errors occurred.
	*/

	if ( rc == 0 && so->s_res ) {
	syncprov_qstart( so );
	} else {
	so->s_flags ^= PS_TASK_QUEUED;
}	}
op->o_bd->bd_info = (BackendInfo *)on;
	ldap_pvt_thread_mutex_unlock( &so->s_mutex );
return rc;	return rc;
}	}

/* runqueue task for playing back queued responses */	/* task for playing back queued responses */
static void *	static void *
syncprov_qtask( void ctx, void arg )	syncprov_qtask( void ctx, void arg )
{	{
struct re_s *rtask = arg;	syncops *so = 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;

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 894 syncprov_qtask( void ctx, void arg )	Line 1001 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;

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

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

/* wait until we get explicitly scheduled again */
ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
ldap_pvt_runqueue_stoptask( &slapd_rq, so->s_qtask );
ldap_pvt_runqueue_resched( &slapd_rq, so->s_qtask, 1 );
ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );

return NULL;	return NULL;
}	}

	/* Start the task to play back queued psearch responses */
	static void
	syncprov_qstart( syncops *so )
	{
	so->s_flags \|= PS_TASK_QUEUED;
	so->s_inuse++;
	ldap_pvt_thread_pool_submit( &connection_pool,
	syncprov_qtask, so );
	}

/* Queue a persistent search response */	/* Queue a persistent search response */
static int	static int
syncprov_qresp( opcookie opc, syncops so, int mode )	syncprov_qresp( opcookie opc, syncops so, int mode )
{	{
syncres *sr;	syncres *sr;
	int srsize;
	struct berval cookie = opc->sctxcsn;

sr = ch_malloc(sizeof(syncres) + opc->suuid.bv_len + 1 +	if ( mode == LDAP_SYNC_NEW_COOKIE ) {
opc->sdn.bv_len + 1 + opc->sndn.bv_len + 1 + opc->sctxcsn.bv_len + 1 );	syncprov_info_t *si = opc->son->on_bi.bi_private;

	slap_compose_sync_cookie( NULL, &cookie, si->si_ctxcsn,
	so->s_rid, slap_serverID ? slap_serverID : -1);
	}

	srsize = sizeof(syncres) + opc->suuid.bv_len + 1 +
	opc->sdn.bv_len + 1 + opc->sndn.bv_len + 1;
	if ( cookie.bv_len )
	srsize += cookie.bv_len + 1;
	sr = ch_malloc( srsize );
sr->s_next = NULL;	sr->s_next = NULL;
	sr->s_e = opc->se;
	/* bump refcount on this entry */
	if ( opc->se )
	inc_mutexint( opc->se->e_private );
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;
sr->s_mode = mode;	sr->s_mode = mode;
Line 931 syncprov_qresp( opcookie opc, syncops	Line 1058 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 ( cookie.bv_len ) {
sr->s_csn.bv_len = 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 );	strcpy( sr->s_csn.bv_val, cookie.bv_val );
	} else {
	sr->s_csn.bv_val = NULL;
	}
	sr->s_csn.bv_len = cookie.bv_len;

	if ( mode == LDAP_SYNC_NEW_COOKIE && cookie.bv_val ) {
	ch_free( cookie.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 948 syncprov_qresp( opcookie opc, syncops	Line 1083 syncprov_qresp( opcookie opc, syncops
so->s_flags ^= PS_WROTE_BASE;	so->s_flags ^= PS_WROTE_BASE;
so->s_flags \|= PS_FIND_BASE;	so->s_flags \|= PS_FIND_BASE;
}	}
if ( so->s_flags & PS_IS_DETACHED ) {	if (( so->s_flags & (PS_IS_DETACHED\|PS_TASK_QUEUED)) == PS_IS_DETACHED ) {
int wake=0;	syncprov_qstart( so );
ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
if ( !so->s_qtask ) {
so->s_qtask = ldap_pvt_runqueue_insert( &slapd_rq, RUNQ_INTERVAL,
syncprov_qtask, so, "syncprov_qtask",
so->s_op->o_conn->c_peer_name.bv_val );
++so->s_inuse;
wake = 1;
} else {
if (!ldap_pvt_runqueue_isrunning( &slapd_rq, so->s_qtask ) &&
!so->s_qtask->next_sched.tv_sec ) {
so->s_qtask->interval.tv_sec = 0;
ldap_pvt_runqueue_resched( &slapd_rq, so->s_qtask, 0 );
so->s_qtask->interval.tv_sec = RUNQ_INTERVAL;
++so->s_inuse;
wake = 1;
}
}
ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
if ( wake )
slap_wake_listener();
}	}
ldap_pvt_thread_mutex_unlock( &so->s_mutex );	ldap_pvt_thread_mutex_unlock( &so->s_mutex );
return LDAP_SUCCESS;	return LDAP_SUCCESS;
Line 983 syncprov_drop_psearch( syncops *so, int	Line 1098 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 1050 syncprov_matchops( Operation *op, opcook	Line 1165 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;
int freefdn = 0;	int freefdn = 0;
	BackendDB *b0 = op->o_bd, db;

fc.fdn = &op->o_req_ndn;	fc.fdn = &op->o_req_ndn;
/* compute new DN */	/* compute new DN */
Line 1067 syncprov_matchops( Operation *op, opcook	Line 1183 syncprov_matchops( Operation *op, opcook
freefdn = 1;	freefdn = 1;
}	}
if ( op->o_tag != LDAP_REQ_ADD ) {	if ( op->o_tag != LDAP_REQ_ADD ) {
op->o_bd->bd_info = (BackendInfo *)on->on_info;	if ( !SLAP_ISOVERLAY( op->o_bd )) {
rc = be_entry_get_rw( op, fc.fdn, NULL, NULL, 0, &e );	db = *op->o_bd;
	op->o_bd = &db;
	}
	rc = overlay_entry_get_ov( op, fc.fdn, NULL, NULL, 0, &e, on );
/* 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 );	if ( !opc->se ) {
be_entry_release_rw( op, e, 0 );	opc->se = entry_dup( e );
e = e2;	opc->se->e_private = get_mutexint();
	}
	overlay_entry_release_ov( op, e, 0, on );
	e = opc->se;
	}
	if ( rc ) {
	op->o_bd = b0;
	return;
}	}
op->o_bd->bd_info = (BackendInfo *)on;
if ( rc ) return;
} else {	} else {
e = op->ora_e;	e = op->ora_e;
	if ( !saveit ) {
	if ( !opc->se ) {
	opc->se = entry_dup( e );
	opc->se->e_private = get_mutexint();
	}
	e = opc->se;
	}
}	}

if ( saveit \|\| op->o_tag == LDAP_REQ_ADD ) {	if ( saveit \|\| op->o_tag == LDAP_REQ_ADD ) {
Line 1099 syncprov_matchops( Operation *op, opcook	Line 1230 syncprov_matchops( Operation *op, opcook
for (ss = si->si_ops, sprev = (syncops *)&si->si_ops; ss;	for (ss = si->si_ops, sprev = (syncops *)&si->si_ops; ss;
sprev = ss, ss=snext)	sprev = ss, ss=snext)
{	{
	Operation op2;
	Opheader oh;
syncmatches *sm;	syncmatches *sm;
int found = 0;	int found = 0;

snext = ss->s_next;	snext = ss->s_next;
	if ( ss->s_op->o_abandon )
	continue;

	/* Don't send ops back to the originator */
	if ( opc->osid > 0 && opc->osid == ss->s_sid ) {
	Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping original sid %03x\n",
	opc->osid, 0, 0 );
	continue;
	}

	/* Don't send ops back to the messenger */
	if ( opc->rsid > 0 && opc->rsid == ss->s_sid ) {
	Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping relayed sid %03x\n",
	opc->rsid, 0, 0 );
	continue;
	}

/* validate base */	/* validate base */
fc.fss = ss;	fc.fss = ss;
fc.fbase = 0;	fc.fbase = 0;
Line 1120 syncprov_matchops( Operation *op, opcook	Line 1270 syncprov_matchops( Operation *op, opcook
continue;	continue;
}	}


/* If we're sending results now, look for this op in old matches */	/* If we're sending results now, look for this op in old matches */
if ( !saveit ) {	if ( !saveit ) {
syncmatches *old;	syncmatches *old;
Line 1143 syncprov_matchops( Operation *op, opcook	Line 1292 syncprov_matchops( Operation *op, opcook
}	}
}	}

	if ( fc.fscope ) {
	ldap_pvt_thread_mutex_lock( &ss->s_mutex );
	op2 = *ss->s_op;
	oh = *op->o_hdr;
	oh.oh_conn = ss->s_op->o_conn;
	oh.oh_connid = ss->s_op->o_connid;
	op2.o_bd = op->o_bd->bd_self;
	op2.o_hdr = &oh;
	op2.o_extra = op->o_extra;
	op2.o_callback = NULL;
	if (ss->s_flags & PS_FIX_FILTER) {
	/* Skip the AND/GE clause that we stuck on in front. We
	would lose deletes/mods that happen during the refresh
	phase otherwise (ITS#6555) */
	op2.ors_filter = ss->s_op->ors_filter->f_and->f_next;
	}
	ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
	rc = test_filter( &op2, e, op2.ors_filter );
	}

	Debug( LDAP_DEBUG_TRACE, "syncprov_matchops: sid %03x fscope %d rc %d\n",
	ss->s_sid, fc.fscope, rc );

/* 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 && rc == 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 );
sm->sm_next = opc->smatches;	sm->sm_next = opc->smatches;
Line 1162 syncprov_matchops( Operation *op, opcook	Line 1333 syncprov_matchops( Operation *op, opcook
} else if ( !saveit && found ) {	} else if ( !saveit && found ) {
/* send DELETE */	/* send DELETE */
syncprov_qresp( opc, ss, LDAP_SYNC_DELETE );	syncprov_qresp( opc, ss, LDAP_SYNC_DELETE );
	} else if ( !saveit ) {
	syncprov_qresp( opc, ss, LDAP_SYNC_NEW_COOKIE );
	}
	if ( !saveit && found ) {
	/* Decrement s_inuse, was incremented when called
	* with saveit == TRUE
	*/
	syncprov_free_syncop( ss );
}	}
}	}
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;	}
	if ( saveit )
	overlay_entry_release_ov( op, e, 0, on );
	op->o_bd = b0;
	}
	if ( opc->se && !saveit ) {
	if ( !dec_mutexint( opc->se->e_private )) {
	opc->se->e_private = NULL;
	entry_free( opc->se );
	opc->se = NULL;
	}
}	}
if ( freefdn ) {	if ( freefdn ) {
op->o_tmpfree( fc.fdn->bv_val, op->o_tmpmemctx );	op->o_tmpfree( fc.fdn->bv_val, op->o_tmpmemctx );
}	}
	op->o_bd = b0;
}	}

static int	static int
Line 1193 syncprov_op_cleanup( Operation *op, Slap	Line 1383 syncprov_op_cleanup( Operation *op, Slap
}	}

/* Remove op from lock table */	/* Remove op from lock table */
mtdummy.mt_op = op;	mt = opc->smt;
ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
if ( mt ) {	if ( mt ) {
modinst *mi = mt->mt_mods;

/* If there are more, promote the next one */
ldap_pvt_thread_mutex_lock( &mt->mt_mutex );	ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
if ( mi->mi_next ) {	mt->mt_mods = mt->mt_mods->mi_next;
mt->mt_mods = mi->mi_next;	/* If there are more, promote the next one */
	if ( mt->mt_mods ) {
mt->mt_op = mt->mt_mods->mi_op;	mt->mt_op = mt->mt_mods->mi_op;
ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );	ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
} else {	} else {
avl_delete( &si->si_mods, mt, sp_avl_cmp );
ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );	ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
	ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
	avl_delete( &si->si_mods, mt, sp_avl_cmp );
	ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
ldap_pvt_thread_mutex_destroy( &mt->mt_mutex );	ldap_pvt_thread_mutex_destroy( &mt->mt_mutex );
ch_free( mt );	ch_free( mt );
}	}
}	}
ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
if ( !BER_BVISNULL( &opc->suuid ))	if ( !BER_BVISNULL( &opc->suuid ))
op->o_tmpfree( opc->suuid.bv_val, op->o_tmpmemctx );	op->o_tmpfree( opc->suuid.bv_val, op->o_tmpmemctx );
if ( !BER_BVISNULL( &opc->sndn ))	if ( !BER_BVISNULL( &opc->sndn ))
Line 1228 syncprov_op_cleanup( Operation *op, Slap	Line 1415 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;
	BackendInfo *bi;

	#ifdef CHECK_CSN
	Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;

mod.sml_values = bv;	int i;
bv[1].bv_val = NULL;	for ( i=0; i<si->si_numcsns; i++ ) {
bv[0] = si->si_ctxcsn;	assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
	}
	#endif
	mod.sml_numvals = si->si_numcsns;
	mod.sml_values = 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;
mod.sml_flags = 0;	mod.sml_flags = SLAP_MOD_INTERNAL;
mod.sml_next = NULL;	mod.sml_next = NULL;

cb.sc_response = slap_null_cb;	cb.sc_response = slap_null_cb;
Line 1249 syncprov_checkpoint( Operation *op, Slap	Line 1444 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 = si->si_contextdn;
	opm.o_req_ndn = si->si_contextdn;
	bi = opm.o_bd->bd_info;
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 ( rsm.sr_err == LDAP_NO_SUCH_OBJECT &&
	SLAP_SYNC_SUBENTRY( opm.o_bd )) {
	const char *text;
	char txtbuf[SLAP_TEXT_BUFLEN];
	size_t textlen = sizeof txtbuf;
	Entry *e = slap_create_context_csn_entry( opm.o_bd, NULL );
	slap_mods2entry( &mod, &e, 0, 1, &text, txtbuf, textlen);
	opm.ora_e = e;
	opm.o_bd->be_add( &opm, &rsm );
	if ( e == opm.ora_e )
	be_entry_release_w( &opm, opm.ora_e );
	}
	opm.o_bd->bd_info = bi;

if ( mod.sml_next != NULL ) {	if ( mod.sml_next != NULL ) {
slap_mods_free( mod.sml_next, 1 );	slap_mods_free( mod.sml_next, 1 );
}	}
	#ifdef CHECK_CSN
	for ( i=0; i<si->si_numcsns; i++ ) {
	assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
	}
	#endif
}	}

static void	static void
syncprov_add_slog( Operation op, struct berval csn )	syncprov_add_slog( Operation *op )
{	{
opcookie *opc = op->o_callback->sc_private;	opcookie *opc = op->o_callback->sc_private;
slap_overinst *on = opc->son;	slap_overinst *on = opc->son;
Line 1274 syncprov_add_slog( Operation *op, struct	Line 1494 syncprov_add_slog( Operation *op, struct
{	{
/* Allocate a record. UUIDs are not NUL-terminated. */	/* Allocate a record. UUIDs are not NUL-terminated. */
se = ch_malloc( sizeof( slog_entry ) + opc->suuid.bv_len +	se = ch_malloc( sizeof( slog_entry ) + opc->suuid.bv_len +
csn->bv_len + 1 );	op->o_csn.bv_len + 1 );
se->se_next = NULL;	se->se_next = NULL;
se->se_tag = op->o_tag;	se->se_tag = op->o_tag;

Line 1283 syncprov_add_slog( Operation *op, struct	Line 1503 syncprov_add_slog( Operation *op, struct
se->se_uuid.bv_len = opc->suuid.bv_len;	se->se_uuid.bv_len = opc->suuid.bv_len;

se->se_csn.bv_val = se->se_uuid.bv_val + opc->suuid.bv_len;	se->se_csn.bv_val = se->se_uuid.bv_val + opc->suuid.bv_len;
AC_MEMCPY( se->se_csn.bv_val, csn->bv_val, 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[csn->bv_len] = '\0';	se->se_csn.bv_val[op->o_csn.bv_len] = '\0';
se->se_csn.bv_len = 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 1320 playlog_cb( Operation op, SlapReply rs	Line 1541 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,
struct berval oldcsn, 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_PVT_CSNSTR_BUFSIZE];
BerVarray uuids;	BerVarray uuids;
	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 1338 syncprov_playlog( Operation *op, SlapRep	Line 1561 syncprov_playlog( Operation *op, SlapRep

uuids = op->o_tmpalloc( (num+1) * sizeof( struct berval ) +	uuids = op->o_tmpalloc( (num+1) * sizeof( struct berval ) +
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[0].bv_len = 0;
	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[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 ) {
if ( ber_bvcmp( &se->se_csn, oldcsn ) < 0 ) continue;	int k;
if ( ber_bvcmp( &se->se_csn, ctxcsn ) > 0 ) break;	Debug( LDAP_DEBUG_SYNC, "log csn %s\n", se->se_csn.bv_val, 0, 0 );
	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 ) {
	Debug( LDAP_DEBUG_SYNC, "cmp %d, too old\n", ndel, 0, 0 );
	continue;
	}
	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 ) {
	Debug( LDAP_DEBUG_SYNC, "cmp %d, too new\n", ndel, 0, 0 );
	break;
	}
if ( se->se_tag == LDAP_REQ_DELETE ) {	if ( se->se_tag == LDAP_REQ_DELETE ) {
j = i;	j = i;
i++;	i++;
	AC_MEMCPY( cbuf, se->se_csn.bv_val, se->se_csn.bv_len );
	delcsn[0].bv_len = se->se_csn.bv_len;
	delcsn[0].bv_val[delcsn[0].bv_len] = '\0';
} else {	} else {
nmods++;	nmods++;
j = num - nmods;	j = num - nmods;
Line 1395 syncprov_playlog( Operation *op, SlapRep	Line 1648 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 1423 syncprov_playlog( Operation *op, SlapRep	Line 1672 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;	fop.o_bd->bd_info = (BackendInfo *)on->on_info;

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 1442 syncprov_playlog( Operation *op, SlapRep	Line 1691 syncprov_playlog( Operation *op, SlapRep
fop.o_bd->bd_info = (BackendInfo *)on;	fop.o_bd->bd_info = (BackendInfo *)on;
}	}
if ( ndel ) {	if ( ndel ) {
	struct berval cookie;

	if ( delcsn[0].bv_len ) {
	slap_compose_sync_cookie( op, &cookie, delcsn, srs->sr_state.rid,
	slap_serverID ? slap_serverID : -1 );

	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, NULL, 0, uuids, 1 );	syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET,
	delcsn[0].bv_len ? &cookie : NULL, 0, uuids, 1 );
	if ( delcsn[0].bv_len ) {
	op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
	}
}	}
	op->o_tmpfree( uuids, op->o_tmpmemctx );
}	}

static int	static int
Line 1457 syncprov_op_response( Operation *op, Sla	Line 1720 syncprov_op_response( Operation *op, Sla

if ( rs->sr_err == LDAP_SUCCESS )	if ( rs->sr_err == LDAP_SUCCESS )
{	{
struct berval maxcsn = BER_BVNULL, curcsn = BER_BVNULL;	struct berval maxcsn;
char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];	char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
	int do_check = 0, have_psearches, foundit, csn_changed = 0;

	ldap_pvt_thread_mutex_lock( &si->si_resp_mutex );

/* Update our context CSN */	/* Update our context CSN */
cbuf[0] = '\0';	cbuf[0] = '\0';
ldap_pvt_thread_mutex_lock( &si->si_csn_mutex );	maxcsn.bv_val = cbuf;
slap_get_commit_csn( op, &maxcsn, &curcsn );	maxcsn.bv_len = sizeof(cbuf);
if ( !BER_BVISNULL( &maxcsn ) ) {	ldap_pvt_thread_rdwr_wlock( &si->si_csn_rwlock );
strcpy( cbuf, maxcsn.bv_val );
if ( ber_bvcmp( &maxcsn, &si->si_ctxcsn ) > 0 ) {	slap_get_commit_csn( op, &maxcsn, &foundit );
strcpy( si->si_ctxcsnbuf, cbuf );	if ( BER_BVISEMPTY( &maxcsn ) && SLAP_GLUE_SUBORDINATE( op->o_bd )) {
si->si_ctxcsn.bv_len = maxcsn.bv_len;	/* syncrepl queues the CSN values in the db where
	* it is configured , not where the changes are made.
	* So look for a value in the glue db if we didn't
	* find any in this db.
	*/
	BackendDB *be = op->o_bd;
	op->o_bd = select_backend( &be->be_nsuffix[0], 1);
	maxcsn.bv_val = cbuf;
	maxcsn.bv_len = sizeof(cbuf);
	slap_get_commit_csn( op, &maxcsn, &foundit );
	op->o_bd = be;
	}
	if ( !BER_BVISEMPTY( &maxcsn ) ) {
	int i, sid;
	#ifdef CHECK_CSN
	Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
	assert( !syn->ssyn_validate( syn, &maxcsn ));
	#endif
	sid = slap_parse_csn_sid( &maxcsn );
	for ( i=0; i<si->si_numcsns; i++ ) {
	if ( sid == si->si_sids[i] ) {
	if ( ber_bvcmp( &maxcsn, &si->si_ctxcsn[i] ) > 0 ) {
	ber_bvreplace( &si->si_ctxcsn[i], &maxcsn );
	csn_changed = 1;
	}
	break;
	}
	}
	/* It's a new SID for us */
	if ( i == si->si_numcsns ) {
	value_add_one( &si->si_ctxcsn, &maxcsn );
	csn_changed = 1;
	si->si_numcsns++;
	si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
	sizeof(int));
	si->si_sids[i] = sid;
}	}
}	}

/* Don't do any processing for consumer contextCSN updates */	/* Don't do any processing for consumer contextCSN updates */
if ( SLAP_SYNC_SHADOW( op->o_bd ) &&	if ( op->o_dont_replicate ) {
op->o_msgid == SLAP_SYNC_UPDATE_MSGID ) {	if ( op->o_tag == LDAP_REQ_MODIFY &&
ldap_pvt_thread_mutex_unlock( &si->si_csn_mutex );	op->orm_modlist->sml_op == LDAP_MOD_REPLACE &&
return SLAP_CB_CONTINUE;	op->orm_modlist->sml_desc == slap_schema.si_ad_contextCSN ) {
	/* Catch contextCSN updates from syncrepl. We have to look at
	* all the attribute values, as there may be more than one csn
	* that changed, and only one can be passed in the csn queue.
	*/
	Modifications *mod = op->orm_modlist;
	int i, j, sid;

	for ( i=0; i<mod->sml_numvals; i++ ) {
	sid = slap_parse_csn_sid( &mod->sml_values[i] );
	for ( j=0; j<si->si_numcsns; j++ ) {
	if ( sid == si->si_sids[j] ) {
	if ( ber_bvcmp( &mod->sml_values[i], &si->si_ctxcsn[j] ) > 0 ) {
	ber_bvreplace( &si->si_ctxcsn[j], &mod->sml_values[i] );
	csn_changed = 1;
	}
	break;
	}
	}

	if ( j == si->si_numcsns ) {
	value_add_one( &si->si_ctxcsn, &mod->sml_values[i] );
	si->si_numcsns++;
	si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
	sizeof(int));
	si->si_sids[j] = sid;
	csn_changed = 1;
	}
	}
	ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );

	if ( csn_changed ) {
	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 ) {
	for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
	if ( sm->sm_op->s_op->o_abandon )
	continue;
	syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_NEW_COOKIE );
	}
	}
	}
	} else {
	ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
	}
	goto leave;
}	}

si->si_numops++;	si->si_numops++;
if ( si->si_chkops \|\| si->si_chktime ) {	if ( si->si_chkops \|\| si->si_chktime ) {
int do_check=0;	/* Never checkpoint adding the context entry,
if ( si->si_chkops && si->si_numops >= si->si_chkops ) {	* it will deadlock
do_check = 1;	*/
si->si_numops = 0;	if ( op->o_tag != LDAP_REQ_ADD \|\|
}	!dn_match( &op->o_req_ndn, &si->si_contextdn )) {
if ( si->si_chktime &&	if ( si->si_chkops && si->si_numops >= si->si_chkops ) {
(op->o_time - si->si_chklast >= si->si_chktime )) {	do_check = 1;
do_check = 1;	si->si_numops = 0;
si->si_chklast = op->o_time;	}
}	if ( si->si_chktime &&
if ( do_check ) {	(op->o_time - si->si_chklast >= si->si_chktime )) {
syncprov_checkpoint( op, rs, on );	if ( si->si_chklast ) {
	do_check = 1;
	si->si_chklast = op->o_time;
	} else {
	si->si_chklast = 1;
	}
	}
}	}
}	}
ldap_pvt_thread_mutex_unlock( &si->si_csn_mutex );	ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );

	if ( do_check ) {
	ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
	syncprov_checkpoint( op, rs, on );
	ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
	}

opc->sctxcsn.bv_len = maxcsn.bv_len;	/* only update consumer ctx if this is a newer csn */
opc->sctxcsn.bv_val = cbuf;	if ( csn_changed ) {
	opc->sctxcsn = maxcsn;
	}

/* 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 1524 syncprov_op_response( Operation *op, Sla	Line 1889 syncprov_op_response( Operation *op, Sla

/* Add any log records */	/* Add any log records */
if ( si->si_logs && op->o_tag != LDAP_REQ_ADD ) {	if ( si->si_logs && op->o_tag != LDAP_REQ_ADD ) {
syncprov_add_slog( op, &curcsn );	syncprov_add_slog( op );
}	}
	leave: ldap_pvt_thread_mutex_unlock( &si->si_resp_mutex );
}	}
return SLAP_CB_CONTINUE;	return SLAP_CB_CONTINUE;
}	}
Line 1542 syncprov_op_compare( Operation *op, Slap	Line 1907 syncprov_op_compare( Operation *op, Slap
syncprov_info_t *si = on->on_bi.bi_private;	syncprov_info_t *si = on->on_bi.bi_private;
int rc = SLAP_CB_CONTINUE;	int rc = SLAP_CB_CONTINUE;

if ( dn_match( &op->o_req_ndn, op->o_bd->be_nsuffix ) &&	if ( dn_match( &op->o_req_ndn, &si->si_contextdn ) &&
op->oq_compare.rs_ava->aa_desc == slap_schema.si_ad_contextCSN )	op->oq_compare.rs_ava->aa_desc == slap_schema.si_ad_contextCSN )
{	{
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 = si->si_contextdn;
e.e_nname = op->o_bd->be_nsuffix[0];	e.e_nname = si->si_contextdn;
	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_mutex_lock( &si->si_csn_mutex );	ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );

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

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 );
Line 1578 syncprov_op_compare( Operation *op, Slap	Line 1942 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;
}	}

return_results:;	return_results:;

ldap_pvt_thread_mutex_unlock( &si->si_csn_mutex );	ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );

send_ldap_result( op, rs );	send_ldap_result( op, rs );

Line 1606 syncprov_op_mod( Operation *op, SlapRepl	Line 1970 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 1619 syncprov_op_mod( Operation *op, SlapRepl	Line 1990 syncprov_op_mod( Operation *op, SlapRepl
cb->sc_next = op->o_callback;	cb->sc_next = op->o_callback;
op->o_callback = cb;	op->o_callback = cb;

	opc->osid = -1;
	opc->rsid = -1;
	if ( op->o_csn.bv_val ) {
	opc->osid = slap_parse_csn_sid( &op->o_csn );
	}
	if ( op->o_controls ) {
	struct sync_cookie *scook =
	op->o_controls[slap_cids.sc_LDAPsync];
	if ( scook )
	opc->rsid = scook->sid;
	}

/* 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 1635 syncprov_op_mod( Operation *op, SlapRepl	Line 2018 syncprov_op_mod( Operation *op, SlapRepl
mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );	mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
if ( mt ) {	if ( mt ) {
ldap_pvt_thread_mutex_lock( &mt->mt_mutex );	ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
	if ( mt->mt_mods == NULL ) {
	/* Cannot reuse this mt, as another thread is about
	* to release it in syncprov_op_cleanup.
	*/
	ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
	mt = NULL;
	}
	}
	if ( mt ) {
ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );	ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
mt->mt_tail->mi_next = mi;	mt->mt_tail->mi_next = mi;
mt->mt_tail = mi;	mt->mt_tail = mi;
/* 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 ( slapd_shutdown )
	return SLAPD_ABANDON;

	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 1667 syncprov_op_mod( Operation *op, SlapRepl	Line 2068 syncprov_op_mod( Operation *op, SlapRepl
avl_insert( &si->si_mods, mt, sp_avl_cmp, avl_dup_error );	avl_insert( &si->si_mods, mt, sp_avl_cmp, avl_dup_error );
ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );	ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
}	}
	opc->smt = mt;
}	}

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 1687 syncprov_op_extended( Operation *op, Sla	Line 2089 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 1703 syncprov_search_cleanup( Operation *op,	Line 2108 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 1717 syncprov_detach_op( Operation *op, synco	Line 2131 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 1732 syncprov_detach_op( Operation *op, synco	Line 2148 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;	op2->o_managedsait = op->o_managedsait;
	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 1759 syncprov_detach_op( Operation *op, synco	Line 2177 syncprov_detach_op( Operation *op, synco
op2->ors_filterstr.bv_val = ptr;	op2->ors_filterstr.bv_val = ptr;
strcpy( ptr, so->s_filterstr.bv_val );	strcpy( ptr, so->s_filterstr.bv_val );
op2->ors_filterstr.bv_len = so->s_filterstr.bv_len;	op2->ors_filterstr.bv_len = so->s_filterstr.bv_len;
op2->ors_filter = filter_dup( op->ors_filter, NULL );
	/* Skip the AND/GE clause that we stuck on in front */
	if ( so->s_flags & PS_FIX_FILTER ) {
	op2->ors_filter = op->ors_filter->f_and->f_next;
	so->s_flags ^= PS_FIX_FILTER;
	} else {
	op2->ors_filter = op->ors_filter;
	}
	op2->ors_filter = filter_dup( op2->ors_filter, NULL );
so->s_op = op2;	so->s_op = op2;

/* Copy any cached group ACLs individually */	/* Copy any cached group ACLs individually */
Line 1775 syncprov_detach_op( Operation *op, synco	Line 2201 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 1791 syncprov_search_response( Operation *op,	Line 2215 syncprov_search_response( Operation *op,
{	{
searchstate *ss = op->o_callback->sc_private;	searchstate *ss = op->o_callback->sc_private;
slap_overinst *on = ss->ss_on;	slap_overinst *on = ss->ss_on;
	syncprov_info_t si = (syncprov_info_t )on->on_bi.bi_private;
sync_control *srs = op->o_controls[slap_cids.sc_LDAPsync];	sync_control *srs = op->o_controls[slap_cids.sc_LDAPsync];

if ( rs->sr_type == REP_SEARCH \|\| rs->sr_type == REP_SEARCHREF ) {	if ( rs->sr_type == REP_SEARCH \|\| rs->sr_type == REP_SEARCHREF ) {
Line 1810 syncprov_search_response( Operation *op,	Line 2235 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] );
return LDAP_SUCCESS;

/* Don't send the ctx entry twice */	/* Don't send changed entries back to the originator */
if ( !BER_BVISNULL( &srs->sr_state.ctxcsn ) &&	if ( sid == srs->sr_state.sid && srs->sr_state.numcsns ) {
bvmatch( &a->a_nvals[0], &srs->sr_state.ctxcsn ) )	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;
	}

	/* If not a persistent search */
	if ( !ss->ss_so ) {
	/* Make sure entry is less than the snapshot'd contextCSN */
	for ( i=0; i<ss->ss_numcsns; i++ ) {
	if ( sid == ss->ss_sids[i] && ber_bvcmp( &a->a_nvals[0],
	&ss->ss_ctxcsn[i] ) > 0 ) {
	Debug( LDAP_DEBUG_SYNC,
	"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,
op->o_tmpmemctx );	op->o_tmpmemctx );
rs->sr_ctrls[1] = NULL;	rs->sr_ctrls[1] = NULL;
rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,	/* If we're in delta-sync mode, always send a cookie */
LDAP_SYNC_ADD, rs->sr_ctrls, 0, 0, NULL );	if ( si->si_nopres && si->si_usehint && a ) {
	struct berval cookie;
	slap_compose_sync_cookie( op, &cookie, a->a_nvals, srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
	rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
	LDAP_SYNC_ADD, rs->sr_ctrls, 0, 1, &cookie );
	} else {
	rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
	LDAP_SYNC_ADD, rs->sr_ctrls, 0, 0, NULL );
	}
} 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 = BER_BVNULL;

slap_compose_sync_cookie( op, &cookie, &ss->ss_ctxcsn,	if ( ( ss->ss_flags & SS_CHANGED ) &&
srs->sr_state.rid );	ss->ss_ctxcsn && !BER_BVISNULL( &ss->ss_ctxcsn[0] )) {
	slap_compose_sync_cookie( op, &cookie, ss->ss_ctxcsn,
	srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );

/* 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 && rs->sr_nentries ) ?	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 ( !BER_BVISNULL( &cookie ))
	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( &op->o_conn->c_mutex );

/* Turn off the refreshing flag */	/* But not if this connection was closed along the way */
ss->ss_so->s_flags ^= PS_IS_REFRESHING;	if ( op->o_abandon ) {
	ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
	/* syncprov_ab_cleanup will free this syncop */
	return SLAPD_ABANDON;

syncprov_detach_op( op, ss->ss_so, on );	} else {
ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );	ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex );
	/* Turn off the refreshing flag */
	ss->ss_so->s_flags ^= PS_IS_REFRESHING;

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

	ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );

	/* 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 );
	}

return LDAP_SUCCESS;	return LDAP_SUCCESS;
}	}
Line 1868 syncprov_op_search( Operation *op, SlapR	Line 2359 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 1882 syncprov_op_search( Operation *op, SlapR	Line 2374 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;

/* If this is a persistent search, set it up right away */	/* If this is a persistent search, set it up right away */
if ( op->o_sync_mode & SLAP_SYNC_PERSIST ) {	if ( op->o_sync_mode & SLAP_SYNC_PERSIST ) {
Line 1917 syncprov_op_search( Operation *op, SlapR	Line 2406 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 1926 syncprov_op_search( Operation *op, SlapR	Line 2416 syncprov_op_search( Operation *op, SlapR
}	}

/* snapshot the ctxcsn */	/* snapshot the ctxcsn */
ldap_pvt_thread_mutex_lock( &si->si_csn_mutex );	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 ) {
ldap_pvt_thread_mutex_unlock( &si->si_csn_mutex );	ber_bvarray_dup_x( &ctxcsn, si->si_ctxcsn, op->o_tmpmemctx );
ctxcsn.bv_val = csnbuf;	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 );

/* 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;

	/* If we don't have any CSN of our own yet, pretend nothing
	* has changed.
	*/
	if ( !numcsns )
	goto no_change;

	if ( !si->si_nopres )
	do_present = SS_PRESENT;

/* The cookie was validated when it was parsed, just use it */	/* If there are SIDs we don't recognize in the cookie, drop them */
	for (i=0; i<srs->sr_state.numcsns; ) {
	for (j=0; j<numcsns; j++) {
	if ( srs->sr_state.sids[i] == sids[j] ) {
	break;
	}
	}
	/* not found */
	if ( j == numcsns ) {
	struct berval tmp = srs->sr_state.ctxcsn[i];
	j = srs->sr_state.numcsns - 1;
	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 just Refreshing and nothing has changed, shortcut it */	/* If nothing has changed, shortcut it */
if ( bvmatch( &srs->sr_state.ctxcsn, &ctxcsn )) {	if ( srs->sr_state.numcsns == numcsns ) {
nochange = 1;	int i, j, newer;
if ( !(op->o_sync_mode & SLAP_SYNC_PERSIST) ) {	for ( i=0; i<srs->sr_state.numcsns; i++ ) {
LDAPControl *ctrls[2];	for ( j=0; j<numcsns; j++ ) {
	if ( srs->sr_state.sids[i] != sids[j] )
ctrls[0] = NULL;	continue;
ctrls[1] = NULL;	newer = ber_bvcmp( &srs->sr_state.ctxcsn[i], &ctxcsn[j] );
syncprov_done_ctrl( op, rs, ctrls, 0, 0,	/* If our state is newer, tell consumer about changes */
NULL, LDAP_SYNC_REFRESH_DELETES );	if ( newer < 0 )
rs->sr_ctrls = ctrls;	changed = SS_CHANGED;
rs->sr_err = LDAP_SUCCESS;	else if ( newer > 0 ) {
send_ldap_result( op, rs );	/* our state is older, complain to consumer */
rs->sr_ctrls = NULL;	rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
return rs->sr_err;	rs->sr_text = "consumer state is newer than provider!";
	bailout:
	if ( sop ) {
	syncops **sp = &si->si_ops;

	ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
	while ( *sp != sop )
	sp = &(*sp)->s_next;
	*sp = sop->s_next;
	ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
	ch_free( sop );
	}
	rs->sr_ctrls = NULL;
	send_ldap_result( op, rs );
	return rs->sr_err;
	}
	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;	} else {
	/* consumer doesn't have the right number of CSNs */
	changed = SS_CHANGED;
}	}
/* Do we have a sessionlog for this search? */	/* Do we have a sessionlog for this search? */
sl=si->si_logs;	sl=si->si_logs;
if ( sl ) {	if ( sl ) {
ldap_pvt_thread_mutex_lock( &sl->sl_mutex );	ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
if ( ber_bvcmp( &srs->sr_state.ctxcsn, &sl->sl_mincsn ) >= 0 ) {	/* Are there any log entries, and is the consumer state
	* present in the session log?
	*/
	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->sr_state.ctxcsn, &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 1973 syncprov_op_search( Operation *op, SlapR	Line 2547 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 ) {
send_ldap_error( op, rs, LDAP_SYNC_REFRESH_REQUIRED, "sync cookie is stale" );	if ( ctxcsn )
return rs->sr_err;	ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
	if ( sids )
	op->o_tmpfree( sids, op->o_tmpmemctx );
	rs->sr_err = LDAP_SYNC_REFRESH_REQUIRED;
	rs->sr_text = "sync cookie is stale";
	goto bailout;
	}
	if ( srs->sr_state.ctxcsn ) {
	ber_bvarray_free_x( srs->sr_state.ctxcsn, op->o_tmpmemctx );
	srs->sr_state.ctxcsn = NULL;
	}
	if ( srs->sr_state.sids ) {
	slap_sl_free( srs->sr_state.sids, op->o_tmpmemctx );
	srs->sr_state.sids = NULL;
}	}
	srs->sr_state.numcsns = 0;
} else {	} else {
gotstate = 1;	gotstate = 1;
/* 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 ) {
send_ldap_result( op, rs );	if ( ctxcsn )
return rs->sr_err;	ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
	if ( sids )
	op->o_tmpfree( sids, op->o_tmpmemctx );
	goto bailout;
}	}
}	}
	} else {
	/* No consumer state, assume something has changed */
	changed = SS_CHANGED;
}	}

shortcut:	shortcut:
Line 1996 shortcut:	Line 2590 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 2010 shortcut:	Line 2604 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;
	if ( sop )
	ldap_pvt_thread_mutex_lock( &sop->s_mutex );
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 );
	if ( sop ) {
	sop->s_flags \|= PS_FIX_FILTER;
	ldap_pvt_thread_mutex_unlock( &sop->s_mutex );
	}
}	}

/* Let our callback add needed info to returned entries */	/* Let our callback add needed info to returned entries */
Line 2021 shortcut:	Line 2621 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 2056 syncprov_operational(	Line 2652 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, &si->si_contextdn )) {

if ( SLAP_OPATTRS( rs->sr_attr_flags ) \|\|	if ( SLAP_OPATTRS( rs->sr_attr_flags ) \|\|
ad_inlist( slap_schema.si_ad_contextCSN, rs->sr_attrs )) {	ad_inlist( slap_schema.si_ad_contextCSN, rs->sr_attrs )) {
Line 2068 syncprov_operational(	Line 2670 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;	if ( !ap ) {
a->a_next = NULL;	if ( !(rs->sr_flags & REP_ENTRY_MODIFIABLE) ) {
a->a_flags = 0;	Entry *e = entry_dup( rs->sr_entry );
*ap = a;	if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
}	overlay_entry_release_ov( op, rs->sr_entry, 0, on );
	rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
ldap_pvt_thread_mutex_lock( &si->si_csn_mutex );	} else if ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) {
if ( !ap ) {	entry_free( rs->sr_entry );
strcpy( a->a_vals[0].bv_val, si->si_ctxcsnbuf );	}
} else {	rs->sr_entry = e;
ber_dupbv( &a->a_vals[0], &si->si_ctxcsn );	rs->sr_flags \|=
	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_mutex_unlock( &si->si_csn_mutex );	ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
}	}
}	}
return SLAP_CB_CONTINUE;	return SLAP_CB_CONTINUE;
Line 2127 static ConfigOCs spocs[] = {	Line 2745 static ConfigOCs spocs[] = {
"NAME 'olcSyncProvConfig' "	"NAME 'olcSyncProvConfig' "
"DESC 'SyncRepl Provider configuration' "	"DESC 'SyncRepl Provider configuration' "
"SUP olcOverlayConfig "	"SUP olcOverlayConfig "
"MAY ( olcSpCheckpoint $ olcSpSessionlog $ olcSpNoPresent ) )",	"MAY ( olcSpCheckpoint "
	"$ olcSpSessionlog "
	"$ olcSpNoPresent "
	"$ olcSpReloadHint "
	") )",
Cft_Overlay, spcfg },	Cft_Overlay, spcfg },
{ NULL, 0, NULL }	{ NULL, 0, NULL }
};	};
Line 2144 sp_cf_gen(ConfigArgs *c)	Line 2766 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",	/* we assume si_chktime is a multiple of 60
si->si_chkops, si->si_chktime );	* because the parsed value was originally
bv.bv_val = c->msg;	* multiplied by 60 */
value_add_one( &c->rvalue_vals, &bv );	bv.bv_len = snprintf( c->cr_msg, sizeof( c->cr_msg ),
	"%d %d", si->si_chkops, si->si_chktime/60 );
	if ( bv.bv_len >= sizeof( c->cr_msg ) ) {
	rc = 1;
	} else {
	bv.bv_val = c->cr_msg;
	value_add_one( &c->rvalue_vals, &bv );
	}
} else {	} else {
rc = 1;	rc = 1;
}	}
Line 2205 sp_cf_gen(ConfigArgs *c)	Line 2834 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 ) {
sprintf( 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, "%s: %s\n", c->log, c->msg, 0 );	Debug( LDAP_DEBUG_CONFIG\|LDAP_DEBUG_NONE,
	"%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 ) {
sprintf( 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, "%s: %s\n", c->log, c->msg, 0 );	Debug( LDAP_DEBUG_CONFIG\|LDAP_DEBUG_NONE,
	"%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 ) {
sprintf( 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, "%s: %s\n", c->log, c->msg, 0 );	Debug( LDAP_DEBUG_CONFIG\|LDAP_DEBUG_NONE,
	"%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 ) {
sprintf( 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, "%s: %s\n", c->log, c->msg, 0 );	Debug( LDAP_DEBUG_CONFIG\|LDAP_DEBUG_NONE,
	"%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 2235 sp_cf_gen(ConfigArgs *c)	Line 2868 sp_cf_gen(ConfigArgs *c)
int size = c->value_int;	int size = c->value_int;

if ( size < 0 ) {	if ( size < 0 ) {
sprintf( 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, "%s: %s\n", c->log, c->msg, 0 );	Debug( LDAP_DEBUG_CONFIG\|LDAP_DEBUG_NONE,
	"%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;
if ( !sl ) {	if ( !sl ) {
sl = ch_malloc( sizeof( sessionlog ) + LDAP_LUTIL_CSNSTR_BUFSIZE );	sl = ch_malloc( sizeof( sessionlog ) + LDAP_PVT_CSNSTR_BUFSIZE );
sl->sl_mincsn.bv_val = (char *)(sl+1);	sl->sl_mincsn.bv_val = (char *)(sl+1);
sl->sl_mincsn.bv_len = 0;	sl->sl_mincsn.bv_len = 0;
sl->sl_num = 0;	sl->sl_num = 0;
Line 2281 syncprov_db_otask(	Line 2915 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;

	if ( !SLAP_LASTMOD( be )) {
	Debug( LDAP_DEBUG_ANY,
	"syncprov_db_open: invalid config, lastmod must be enabled\n", 0, 0, 0 );
	return -1;
	}

if ( slapMode & SLAP_TOOL_MODE ) {	if ( slapMode & SLAP_TOOL_MODE ) {
return 0;	return 0;
}	}
Line 2306 syncprov_db_open(	Line 2946 syncprov_db_open(
}	}

thrctx = ldap_pvt_thread_pool_context();	thrctx = ldap_pvt_thread_pool_context();
connection_fake_init( &conn, op, thrctx );	connection_fake_init2( &conn, &opbuf, thrctx, 0 );
	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';	if ( SLAP_SYNC_SUBENTRY( be )) {
	build_new_dn( &si->si_contextdn, be->be_nsuffix,
op->o_bd->bd_info = on->on_info->oi_orig;	(struct berval *)&slap_ldapsync_cn_bv, NULL );
rc = be_entry_get_rw( op, be->be_nsuffix, NULL,	} else {
slap_schema.si_ad_contextCSN, 0, &e );	si->si_contextdn = be->be_nsuffix[0];
	}
	rc = overlay_entry_get_ov( op, &si->si_contextdn, NULL,
	slap_schema.si_ad_contextCSN, 0, &e, on );

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 && !SLAP_DBCLEAN( be )) {
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;
ldap_pvt_thread_create( &tid, 0, syncprov_db_otask, op );	ldap_pvt_thread_create( &tid, 0, syncprov_db_otask, op );
ldap_pvt_thread_join( tid, NULL );	ldap_pvt_thread_join( tid, NULL );
}	}
} else if ( SLAP_SYNC_SHADOW( op->o_bd )) {
/* If we're also a consumer, and we didn't find the context entry,
* then don't generate anything, wait for our provider to send it
* to us.
*/
goto out;
}	}

if ( BER_BVISEMPTY( &si->si_ctxcsn ) ) {	/* Didn't find a contextCSN, should we generate one? */
si->si_ctxcsn.bv_len = sizeof( si->si_ctxcsnbuf );	if ( !si->si_ctxcsn ) {
slap_get_csn( op, &si->si_ctxcsn, 0 );	char csnbuf[ LDAP_PVT_CSNSTR_BUFSIZE ];
}	struct berval csn;

	if ( SLAP_SYNC_SHADOW( op->o_bd )) {
	/* If we're also a consumer, then don't generate anything.
	* Wait for our provider to send it to us, or for a local
	* modify if we have multimaster.
	*/
	goto out;
	}
	csn.bv_val = csnbuf;
	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++;
}	}

out:	out:
op->o_bd->bd_info = (BackendInfo *)on;	op->o_bd->bd_info = (BackendInfo *)on;
ldap_pvt_thread_pool_context_reset( thrctx );
return 0;	return 0;
}	}

Line 2369 out:	Line 3013 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 2379 syncprov_db_close(	Line 3024 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_init2( &conn, &opbuf, thrctx, 0 );
	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;
syncprov_checkpoint( op, &rs, on );	syncprov_checkpoint( op, &rs, on );
ldap_pvt_thread_pool_context_reset( thrctx );
}	}

return 0;	return 0;
Line 2399 syncprov_db_close(	Line 3044 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;
syncprov_info_t *si;	syncprov_info_t *si;

	if ( SLAP_ISGLOBALOVERLAY( be ) ) {
	Debug( LDAP_DEBUG_ANY,
	"syncprov must be instantiated within a database.\n",
	0, 0, 0 );
	return 1;
	}

si = ch_calloc(1, sizeof(syncprov_info_t));	si = ch_calloc(1, sizeof(syncprov_info_t));
on->on_bi.bi_private = si;	on->on_bi.bi_private = si;
ldap_pvt_thread_mutex_init( &si->si_csn_mutex );	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;	ldap_pvt_thread_mutex_init( &si->si_resp_mutex );

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 2425 syncprov_db_init(	Line 3078 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 2443 syncprov_db_destroy(	Line 3097 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_resp_mutex );
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_mutex_destroy( &si->si_csn_mutex );	ldap_pvt_thread_rdwr_destroy( &si->si_csn_rwlock );
ch_free( si );	ch_free( si );
}	}

Line 2476 static int syncprov_parseCtrl (	Line 3135 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 2535 static int syncprov_parseCtrl (	Line 3199 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.1.147
changed lines
	Added in v.1.147.2.77