servers/slapd/overlays/syncprov.c - diff

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Diff for /servers/slapd/overlays/syncprov.c between versions 1.147.2.92 and 1.160

version 1.147.2.92, 2011/01/31 19:05:48	version 1.160, 2006/09/21 07:42:40
Line 1	Line 1
/* $OpenLDAP$ */	/* $OpenLDAP: pkg/ldap/servers/slapd/overlays/syncprov.c,v 1.159 2006/08/28 23:43:25 hyc Exp $ */
/* syncprov.c - syncrepl provider */	/* syncprov.c - syncrepl provider */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.	/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*	*
* Copyright 2004-2011 The OpenLDAP Foundation.	* Copyright 2004-2006 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 48 typedef struct modtarget {	Line 44 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 64 typedef struct syncops {	Line 59 typedef struct syncops {
ID s_eid; /* entryID of search base */	ID s_eid; /* entryID of search base */
Operation s_op; / search op */	Operation s_op; / search op */
int s_rid;	int s_rid;
int s_sid;
struct berval s_filterstr;	struct berval s_filterstr;
int s_flags; /* search status */	int s_flags; /* search status */
#define PS_IS_REFRESHING 0x01	#define PS_IS_REFRESHING 0x01
Line 72 typedef struct syncops {	Line 66 typedef struct syncops {
#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_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 108 typedef struct slog_entry {	Line 103 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 124 typedef struct sessionlog {	Line 118 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;
BerVarray si_ctxcsn; /* ldapsync context */	struct berval 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 */
int si_nopres; /* Skip present phase */	int si_nopres; /* Skip present phase */
int si_usehint; /* use reload hint */	int si_usehint; /* use reload hint */
int si_active; /* True if there are active mods */
int si_dirty; /* True if the context is dirty, i.e changes
* have been made without updating the csn. */
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_rdwr_t si_csn_rwlock;	ldap_pvt_thread_mutex_t si_csn_mutex;
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;
ldap_pvt_thread_mutex_t si_resp_mutex;	char si_ctxcsnbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
} 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;
short osid; /* sid of op csn */	int sreference; /* Is the entry a reference? */
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 225 syncprov_state_ctrl(	Line 204 syncprov_state_ctrl(

if ( ret < 0 ) {	if ( ret < 0 ) {
Debug( LDAP_DEBUG_TRACE,	Debug( LDAP_DEBUG_TRACE,
"slap_build_sync_ctrl: ber_flatten2 failed (%d)\n",	"slap_build_sync_ctrl: ber_flatten2 failed\n",
ret, 0, 0 );	0, 0, 0 );
send_ldap_error( op, rs, LDAP_OTHER, "internal error" );	send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
return LDAP_OTHER;	return ret;
}	}

return LDAP_SUCCESS;	return LDAP_SUCCESS;
Line 271 syncprov_done_ctrl(	Line 250 syncprov_done_ctrl(

if ( ret < 0 ) {	if ( ret < 0 ) {
Debug( LDAP_DEBUG_TRACE,	Debug( LDAP_DEBUG_TRACE,
"syncprov_done_ctrl: ber_flatten2 failed (%d)\n",	"syncprov_done_ctrl: ber_flatten2 failed\n",
ret, 0, 0 );	0, 0, 0 );
send_ldap_error( op, rs, LDAP_OTHER, "internal error" );	send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
return LDAP_OTHER;	return ret;
}	}

return LDAP_SUCCESS;	return LDAP_SUCCESS;
Line 338 syncprov_sendinfo(	Line 317 syncprov_sendinfo(

if ( ret < 0 ) {	if ( ret < 0 ) {
Debug( LDAP_DEBUG_TRACE,	Debug( LDAP_DEBUG_TRACE,
"syncprov_sendinfo: ber_flatten2 failed (%d)\n",	"syncprov_sendinfo: ber_flatten2 failed\n",
ret, 0, 0 );	0, 0, 0 );
send_ldap_error( op, rs, LDAP_OTHER, "internal error" );	send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
return LDAP_OTHER;	return ret;
}	}

rs->sr_rspoid = LDAP_SYNC_INFO;	rs->sr_rspoid = LDAP_SYNC_INFO;
Line 411 static struct berval generic_filterstr =	Line 390 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 426 syncprov_findbase( Operation *op, fbase_	Line 408 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 447 syncprov_findbase( Operation *op, fbase_	Line 429 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 512 findmax_cb( Operation op, SlapReply rs	Line 496 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 594 syncprov_findcsn( Operation *op, find_cs	Line 577 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_PVT_CSNSTR_BUFSIZE + STRLENOF("(entryCSN<=)")];	char buf[LDAP_LUTIL_CSNSTR_BUFSIZE + STRLENOF("(entryCSN<=)")];
char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];	char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
struct berval maxcsn;	struct berval maxcsn;
Filter cf;	Filter cf, af;
AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;	#ifdef LDAP_COMP_MATCH
	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 616 syncprov_findcsn( Operation *op, find_cs	Line 606 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 629 again:	Line 618 again:
switch( mode ) {	switch( mode ) {
case FIND_MAXCSN:	case FIND_MAXCSN:
cf.f_choice = LDAP_FILTER_GE;	cf.f_choice = LDAP_FILTER_GE;
/* If there are multiple CSNs, use the one with our serverID */	cf.f_av_value = si->si_ctxcsn;
for ( i=0; i<si->si_numcsns; i++) {	fop.ors_filterstr.bv_len = sprintf( buf, "(entryCSN>=%s)",
if ( slap_serverID == si->si_sids[i] ) {	cf.f_av_value.bv_val );
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, cf.f_av_value.bv_val );	strcpy( cbuf, si->si_ctxcsn.bv_val );
maxcsn.bv_val = cbuf;	maxcsn.bv_val = cbuf;
maxcsn.bv_len = cf.f_av_value.bv_len;	maxcsn.bv_len = si->si_ctxcsn.bv_len;
break;	break;
case FIND_CSN:	case FIND_CSN:
if ( BER_BVISEMPTY( &cf.f_av_value )) {	cf.f_av_value = srs->sr_state.ctxcsn;
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 = snprintf( buf, sizeof( buf ),	fop.ors_filterstr.bv_len = sprintf( buf, "(entryCSN=%s)",
"(entryCSN=%s)", cf.f_av_value.bv_val );	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 = snprintf( buf, sizeof( buf ),	fop.ors_filterstr.bv_len = sprintf( buf, "(entryCSN<=%s)",
"(entryCSN<=%s)", cf.f_av_value.bv_val );	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 692 again:	Line 652 again:
cb.sc_response = findcsn_cb;	cb.sc_response = findcsn_cb;
break;	break;
case FIND_PRESENT:	case FIND_PRESENT:
fop.ors_filter = op->ors_filter;	af.f_choice = LDAP_FILTER_AND;
fop.ors_filterstr = op->ors_filterstr;	af.f_next = NULL;
	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 715 again:	Line 681 again:
break;	break;
}	}

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

switch( mode ) {	switch( mode ) {
case FIND_MAXCSN:	case FIND_MAXCSN:
if ( ber_bvcmp( &si->si_ctxcsn[maxid], &maxcsn )) {	strcpy( si->si_ctxcsnbuf, maxcsn.bv_val );
#ifdef CHECK_CSN	si->si_ctxcsn.bv_len = maxcsn.bv_len;
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 736 again:	Line 696 again:
/* If we didn't find an exact match, then try for <= */	/* If we didn't find an exact match, then try for <= */
if ( findcsn_retry ) {	if ( findcsn_retry ) {
findcsn_retry = 0;	findcsn_retry = 0;
rs_reinit( &frs, REP_RESULT );
goto again;	goto again;
}	}
rc = LDAP_NO_SUCH_OBJECT;	rc = LDAP_NO_SUCH_OBJECT;
Line 744 again:	Line 703 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 787 syncprov_free_syncop( syncops *so )	Line 717 syncprov_free_syncop( syncops *so )
GroupAssertion ga, gnext;	GroupAssertion ga, gnext;

ldap_pvt_thread_mutex_lock( &so->s_mutex );	ldap_pvt_thread_mutex_lock( &so->s_mutex );
/* already being freed, or still in use */	if ( --so->s_inuse > 0 ) {
if ( !so->s_inuse \|\| --so->s_inuse > 0 ) {
ldap_pvt_thread_mutex_unlock( &so->s_mutex );	ldap_pvt_thread_mutex_unlock( &so->s_mutex );
return;	return;
}	}
Line 804 syncprov_free_syncop( syncops *so )	Line 733 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 818 syncprov_free_syncop( syncops *so )	Line 741 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, int mode )	syncprov_sendresp( Operation op, opcookie opc, syncops *so,
	Entry **e, int mode )
{	{
	slap_overinst *on = opc->son;

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

Line 830 syncprov_sendresp( Operation *op, opcook	Line 756 syncprov_sendresp( Operation *op, opcook
return SLAPD_ABANDON;	return SLAPD_ABANDON;

ctrls[1] = NULL;	ctrls[1] = NULL;
if ( !BER_BVISNULL( &opc->sctxcsn )) {	slap_compose_sync_cookie( op, &cookie, &opc->sctxcsn, so->s_rid );
csns[0] = opc->sctxcsn;
BER_BVZERO( &csns[1] );
slap_compose_sync_cookie( op, &cookie, csns, so->s_rid, 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 );
if ( !BER_BVISNULL( &cookie )) {	op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
}

rs.sr_ctrls = ctrls;	rs.sr_ctrls = ctrls;
rs.sr_entry = &e_uuid;	op->o_bd->bd_info = (BackendInfo *)on->on_info;
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:
if ( opc->sreference && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {	rs.sr_entry = *e;
	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 );
rs.sr_err = 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;
rs.sr_err = 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;
if ( opc->sreference && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {	rs.sr_entry = &e_uuid;
	if ( opc->sreference ) {
struct berval bv = BER_BVNULL;	struct berval bv = BER_BVNULL;
rs.sr_ref = &bv;	rs.sr_ref = &bv;
rs.sr_err = send_search_reference( op, &rs );	rs.sr_err = send_search_reference( op, &rs );
Line 892 syncprov_sendresp( Operation *op, opcook	Line 808 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 ) {
int i;	op->o_tmpfree( rs.sr_ctrls[0], op->o_tmpmemctx );
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, syncops so )	syncprov_qplay( Operation op, slap_overinst on, syncops *so )
{	{
slap_overinst *on = LDAP_SLIST_FIRST(&so->s_op->o_extra)->oe_key;
syncres *sr;	syncres *sr;
	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;

do {	for (;;) {
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;
/* Exit loop with mutex held */
if ( !sr \|\| so->s_op->o_abandon )
break;
ldap_pvt_thread_mutex_unlock( &so->s_mutex );	ldap_pvt_thread_mutex_unlock( &so->s_mutex );

if ( sr->s_mode == LDAP_SYNC_NEW_COOKIE ) {	if ( !sr \|\| so->s_op->o_abandon )
SlapReply rs = { REP_INTERMEDIATE };	break;

rc = syncprov_sendinfo( op, &rs, LDAP_TAG_SYNC_NEW_COOKIE,
&sr->s_csn, 0, NULL, 0 );
} else {
opc.sdn = sr->s_dn;
opc.sndn = sr->s_ndn;
opc.suuid = sr->s_uuid;
opc.sctxcsn = sr->s_csn;
opc.sreference = sr->s_isreference;
opc.se = sr->s_e;

rc = syncprov_sendresp( op, &opc, so, sr->s_mode );

}	opc.sdn = sr->s_dn;
if ( sr->s_e ) {	opc.sndn = sr->s_ndn;
if ( !dec_mutexint( sr->s_e->e_private )) {	opc.suuid = sr->s_uuid;
sr->s_e->e_private = NULL;	opc.sctxcsn = sr->s_csn;
entry_free ( sr->s_e );	opc.sreference = sr->s_isreference;
	e = NULL;

	if ( sr->s_mode != LDAP_SYNC_DELETE ) {
	rc = be_entry_get_rw( op, &opc.sndn, NULL, NULL, 0, &e );
	if ( rc ) {
	ch_free( sr );
	continue;
}	}
}	}
	rc = syncprov_sendresp( op, &opc, so, &e, sr->s_mode );

ch_free( sr );	if ( e ) {
	be_entry_release_rw( op, e, 0 );
/* Exit loop with mutex held */	}
ldap_pvt_thread_mutex_lock( &so->s_mutex );

} while (0);

/* We now only send one change at a time, to prevent one	ch_free( sr );
* 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 ) {	if ( rc )
syncprov_qstart( so );	break;
} 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;
}	}

/* task for playing back queued responses */	/* runqueue task for playing back queued responses */
static void *	static void *
syncprov_qtask( void ctx, void arg )	syncprov_qtask( void ctx, void arg )
{	{
syncops *so = arg;	struct re_s *rtask = arg;
	syncops *so = rtask->arg;
	slap_overinst *on = so->s_op->o_private;
OperationBuffer opbuf;	OperationBuffer opbuf;
Operation *op;	Operation *op;
BackendDB be;	BackendDB be;
int rc;	int rc;

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

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

Line 1003 syncprov_qtask( void ctx, void arg )	Line 896 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;
LDAP_SLIST_FIRST(&op->o_extra) = NULL;	op->o_private = NULL;
op->o_callback = NULL;	op->o_callback = NULL;

rc = syncprov_qplay( op, so );	rc = syncprov_qplay( op, on, 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 );
	if ( rc == 0 ) {
	ldap_pvt_runqueue_resched( &slapd_rq, so->s_qtask, 1 );
	} else {
	/* bail out on any error */
	ldap_pvt_runqueue_remove( &slapd_rq, rtask );
	}
	ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );

	#if 0 /* FIXME: connection_close isn't exported from slapd.
	* should it be?
	*/
	if ( rc ) {
	ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
	if ( connection_state_closing( op->o_conn )) {
	connection_close( op->o_conn );
	}
	ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
	}
	#endif
return NULL;	return NULL;
}	}

Line 1018 syncprov_qtask( void ctx, void arg )	Line 933 syncprov_qtask( void ctx, void arg )
static void	static void
syncprov_qstart( syncops *so )	syncprov_qstart( syncops *so )
{	{
so->s_flags \|= PS_TASK_QUEUED;	int wake=0;
so->s_inuse++;	ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
ldap_pvt_thread_pool_submit( &connection_pool,	if ( !so->s_qtask ) {
syncprov_qtask, so );	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();
}	}

/* Queue a persistent search response */	/* Queue a persistent search response */
Line 1029 static int	Line 961 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;

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

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 1060 syncprov_qresp( opcookie opc, syncops	Line 976 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 );
if ( cookie.bv_len ) {	sr->s_csn.bv_val = sr->s_uuid.bv_val + sr->s_uuid.bv_len + 1;
sr->s_csn.bv_val = sr->s_uuid.bv_val + sr->s_uuid.bv_len + 1;	sr->s_csn.bv_len = opc->sctxcsn.bv_len;
strcpy( sr->s_csn.bv_val, cookie.bv_val );	strcpy( sr->s_csn.bv_val, opc->sctxcsn.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 1085 syncprov_qresp( opcookie opc, syncops	Line 993 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\|PS_TASK_QUEUED)) == PS_IS_DETACHED ) {	if ( so->s_flags & PS_IS_DETACHED ) {
syncprov_qstart( so );	syncprov_qstart( so );
}	}
ldap_pvt_thread_mutex_unlock( &so->s_mutex );	ldap_pvt_thread_mutex_unlock( &so->s_mutex );
Line 1100 syncprov_drop_psearch( syncops *so, int	Line 1008 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, Operation,	LDAP_STAILQ_REMOVE( &so->s_op->o_conn->c_ops, so->s_op, slap_op,
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 1167 syncprov_matchops( Operation *op, opcook	Line 1075 syncprov_matchops( Operation *op, opcook

fbase_cookie fc;	fbase_cookie fc;
syncops ss, sprev, *snext;	syncops ss, sprev, *snext;
Entry *e = NULL;	Entry *e;
Attribute *a;	Attribute *a;
int rc;	int rc;
struct berval newdn;	struct berval newdn;
Line 1189 syncprov_matchops( Operation *op, opcook	Line 1097 syncprov_matchops( Operation *op, opcook
db = *op->o_bd;	db = *op->o_bd;
op->o_bd = &db;	op->o_bd = &db;
}	}
rc = overlay_entry_get_ov( op, fc.fdn, NULL, NULL, 0, &e, on );	op->o_bd->bd_info = (BackendInfo *)on->on_info;
	rc = be_entry_get_rw( op, fc.fdn, NULL, NULL, 0, &e );
/* If we're sending responses now, make a copy and unlock the DB */	/* If we're sending responses now, make a copy and unlock the DB */
if ( e && !saveit ) {	if ( e && !saveit ) {
if ( !opc->se ) {	Entry *e2 = entry_dup( e );
opc->se = entry_dup( e );	be_entry_release_rw( op, e, 0 );
opc->se->e_private = get_mutexint();	e = e2;
}
overlay_entry_release_ov( op, e, 0, on );
e = opc->se;
}	}
	op->o_bd->bd_info = (BackendInfo *)on;
if ( rc ) {	if ( rc ) {
op->o_bd = b0;	op->o_bd = b0;
return;	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 1232 syncprov_matchops( Operation *op, opcook	Line 1132 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 1272 syncprov_matchops( Operation *op, opcook	Line 1153 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 1294 syncprov_matchops( Operation *op, opcook	Line 1176 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 && rc == LDAP_COMPARE_TRUE ) {	if ( fc.fscope && test_filter( op, e, ss->s_op->ors_filter ) ==
	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 1335 syncprov_matchops( Operation *op, opcook	Line 1195 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 ) {
if ( !SLAP_ISOVERLAY( op->o_bd )) {	op->o_bd->bd_info = (BackendInfo *)on->on_info;
op->o_bd = &db;	be_entry_release_rw( op, e, 0 );
}	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 );
Line 1376 syncprov_op_cleanup( Operation *op, Slap	Line 1218 syncprov_op_cleanup( Operation *op, Slap
slap_overinst *on = opc->son;	slap_overinst *on = opc->son;
syncprov_info_t *si = on->on_bi.bi_private;	syncprov_info_t *si = on->on_bi.bi_private;
syncmatches sm, snext;	syncmatches sm, snext;
modtarget *mt;	modtarget *mt, mtdummy;

ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
if ( si->si_active )
si->si_active--;
ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );

for (sm = opc->smatches; sm; sm=snext) {	for (sm = opc->smatches; sm; sm=snext) {
snext = sm->sm_next;	snext = sm->sm_next;
Line 1390 syncprov_op_cleanup( Operation *op, Slap	Line 1227 syncprov_op_cleanup( Operation *op, Slap
}	}

/* Remove op from lock table */	/* Remove op from lock table */
mt = opc->smt;	mtdummy.mt_op = op;
	ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
	mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
if ( mt ) {	if ( mt ) {
ldap_pvt_thread_mutex_lock( &mt->mt_mutex );	modinst *mi = mt->mt_mods;
mt->mt_mods = mt->mt_mods->mi_next;
/* If there are more, promote the next one */	/* If there are more, promote the next one */
if ( mt->mt_mods ) {	ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
	if ( mi->mi_next ) {
	mt->mt_mods = mi->mi_next;
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 {
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 );	avl_delete( &si->si_mods, mt, sp_avl_cmp );
ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );	ldap_pvt_thread_mutex_unlock( &mt->mt_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 1420 syncprov_op_cleanup( Operation *op, Slap	Line 1260 syncprov_op_cleanup( Operation *op, Slap
}	}

static void	static void
syncprov_checkpoint( Operation op, slap_overinst on )	syncprov_checkpoint( Operation op, SlapReply rs, slap_overinst *on )
{	{
syncprov_info_t si = (syncprov_info_t )on->on_bi.bi_private;	syncprov_info_t *si = on->on_bi.bi_private;
Modifications mod;	Modifications mod;
Operation opm;	Operation opm;
SlapReply rsm = {REP_RESULT};	SlapReply rsm = { 0 };
	struct berval bv[2];
slap_callback cb = {0};	slap_callback cb = {0};
BackendDB be;
BackendInfo *bi;

#ifdef CHECK_CSN	/* If ctxcsn is empty, delete it */
Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;	if ( BER_BVISEMPTY( &si->si_ctxcsn )) {
	mod.sml_values = NULL;
int i;	} else {
for ( i=0; i<si->si_numcsns; i++ ) {	mod.sml_values = bv;
assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));	bv[1].bv_val = NULL;
	bv[0] = si->si_ctxcsn;
}	}
#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 = SLAP_MOD_INTERNAL;	mod.sml_flags = 0;
mod.sml_next = NULL;	mod.sml_next = NULL;

cb.sc_response = slap_null_cb;	cb.sc_response = slap_null_cb;
Line 1451 syncprov_checkpoint( Operation *op, slap	Line 1288 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.orm_no_opattrs = 1;	opm.o_req_dn = op->o_bd->be_suffix[0];
if ( SLAP_GLUE_SUBORDINATE( op->o_bd )) {	opm.o_req_ndn = op->o_bd->be_nsuffix[0];
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;
opm.o_no_schema_check = 1;	SLAP_DBFLAGS( opm.o_bd ) \|= SLAP_DBFLAG_NOLASTMOD;
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 );
rs_reinit( &rsm, REP_RESULT );
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
Line 1500 syncprov_add_slog( Operation *op )	Line 1311 syncprov_add_slog( Operation *op )

sl = si->si_logs;	sl = si->si_logs;
{	{
if ( BER_BVISEMPTY( &op->o_csn ) ) {
/* During the syncrepl refresh phase we can receive operations
* without a csn. We cannot reliably determine the consumers
* state with respect to such operations, so we ignore them and
* wipe out anything in the log if we see them.
*/
ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
while ( se = sl->sl_head ) {
sl->sl_head = se->se_next;
ch_free( se );
}
sl->sl_tail = NULL;
sl->sl_num = 0;
ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
return;
}

/* 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 +
op->o_csn.bv_len + 1 );	op->o_csn.bv_len + 1 );
Line 1531 syncprov_add_slog( Operation *op )	Line 1325 syncprov_add_slog( Operation *op )
AC_MEMCPY( se->se_csn.bv_val, op->o_csn.bv_val, op->o_csn.bv_len );	AC_MEMCPY( se->se_csn.bv_val, op->o_csn.bv_val, op->o_csn.bv_len );
se->se_csn.bv_val[op->o_csn.bv_len] = '\0';	se->se_csn.bv_val[op->o_csn.bv_len] = '\0';
se->se_csn.bv_len = op->o_csn.bv_len;	se->se_csn.bv_len = op->o_csn.bv_len;
se->se_sid = slap_parse_csn_sid( &se->se_csn );

ldap_pvt_thread_mutex_lock( &sl->sl_mutex );	ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
if ( sl->sl_head ) {	if ( sl->sl_head ) {
/* Keep the list in csn order. */	sl->sl_tail->se_next = se;
if ( ber_bvcmp( &sl->sl_tail->se_csn, &se->se_csn ) <= 0 ) {
sl->sl_tail->se_next = se;
sl->sl_tail = se;
} else {
slog_entry **sep;

for ( sep = &sl->sl_head; sep; sep = &(sep)->se_next ) {
if ( ber_bvcmp( &se->se_csn, &(*sep)->se_csn ) < 0 ) {
se->se_next = *sep;
*sep = se;
break;
}
}
}
} else {	} else {
sl->sl_head = se;	sl->sl_head = se;
sl->sl_tail = se;
}	}
	sl->sl_tail = se;
sl->sl_num++;	sl->sl_num++;
while ( sl->sl_num > sl->sl_size ) {	while ( sl->sl_num > sl->sl_size ) {
se = sl->sl_head;	se = sl->sl_head;
sl->sl_head = se->se_next;	sl->sl_head = se->se_next;
AC_MEMCPY( sl->sl_mincsn.bv_val, se->se_csn.bv_val, se->se_csn.bv_len );	strcpy( sl->sl_mincsn.bv_val, se->se_csn.bv_val );
sl->sl_mincsn.bv_len = se->se_csn.bv_len;	sl->sl_mincsn.bv_len = se->se_csn.bv_len;
ch_free( se );	ch_free( se );
sl->sl_num--;	sl->sl_num--;
Line 1580 playlog_cb( Operation op, SlapReply rs	Line 1359 playlog_cb( Operation op, SlapReply rs
/* enter with sl->sl_mutex locked, release before returning */	/* enter with sl->sl_mutex locked, release before returning */
static void	static void
syncprov_playlog( Operation op, SlapReply rs, sessionlog *sl,	syncprov_playlog( Operation op, SlapReply rs, sessionlog *sl,
sync_control srs, BerVarray ctxcsn, int numcsns, int sids )	sync_control srs, struct berval ctxcsn )
{	{
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];	char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
BerVarray uuids;	BerVarray uuids;
struct berval delcsn[2];	struct berval delcsn;

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 1602 syncprov_playlog( Operation *op, SlapRep	Line 1381 syncprov_playlog( Operation *op, SlapRep
num * UUID_LEN, op->o_tmpmemctx );	num * UUID_LEN, op->o_tmpmemctx );
uuids[0].bv_val = (char *)(uuids + num + 1);	uuids[0].bv_val = (char *)(uuids + num + 1);

delcsn[0].bv_len = 0;	delcsn.bv_len = 0;
delcsn[0].bv_val = cbuf;	delcsn.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 ) {
int k;	if ( ber_bvcmp( &se->se_csn, &srs->sr_state.ctxcsn ) <= 0 ) continue;
Debug( LDAP_DEBUG_SYNC, "log csn %s\n", se->se_csn.bv_val, 0, 0 );	if ( ber_bvcmp( &se->se_csn, ctxcsn ) > 0 ) break;
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 );	AC_MEMCPY( cbuf, se->se_csn.bv_val, se->se_csn.bv_len );
delcsn[0].bv_len = se->se_csn.bv_len;	delcsn.bv_len = se->se_csn.bv_len;
delcsn[0].bv_val[delcsn[0].bv_len] = '\0';	delcsn.bv_val[delcsn.bv_len] = '\0';
} else {	} else {
if ( se->se_tag == LDAP_REQ_ADD )
continue;
nmods++;	nmods++;
j = num - nmods;	j = num - nmods;
}	}
Line 1686 syncprov_playlog( Operation *op, SlapRep	Line 1438 syncprov_playlog( Operation *op, SlapRep

if ( mmods ) {	if ( mmods ) {
Operation fop;	Operation fop;
	SlapReply frs = { REP_RESULT };
int rc;	int rc;
Filter mf, af;	Filter mf, af;
AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;	#ifdef LDAP_COMP_MATCH
	AttributeAssertion eq = { NULL, BER_BVNULL, NULL };
	#else
	AttributeAssertion eq;
	#endif
slap_callback cb = {0};	slap_callback cb = {0};

fop = *op;	fop = *op;
Line 1712 syncprov_playlog( Operation *op, SlapRep	Line 1469 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 = (BackendInfo *)on->on_info;	fop.o_bd->bd_info = on->on_info->oi_orig;

for ( i=ndel; i<num; i++ ) {	for ( i=ndel; i<num; i++ ) {
if ( uuids[i].bv_len != 0 ) {	if ( uuids[i].bv_len == 0 ) continue;
SlapReply frs = { REP_RESULT };

mf.f_av_value = uuids[i];	mf.f_av_value = uuids[i];
cb.sc_private = NULL;	cb.sc_private = NULL;
fop.ors_slimit = 1;	fop.ors_slimit = 1;
	frs.sr_nentries = 0;
rc = fop.o_bd->be_search( &fop, &frs );	rc = fop.o_bd->be_search( &fop, &frs );

/* If entry was not found, add to delete list */	/* If entry was not found, add to delete list */
if ( !cb.sc_private ) {	if ( !cb.sc_private ) {
uuids[ndel++] = uuids[i];	uuids[ndel++] = uuids[i];
}	}
}
}	}
fop.o_bd->bd_info = (BackendInfo *)on;	fop.o_bd->bd_info = (BackendInfo *)on;
}	}
if ( ndel ) {	if ( ndel ) {
struct berval cookie;	struct berval cookie;

if ( delcsn[0].bv_len ) {	slap_compose_sync_cookie( op, &cookie, &delcsn, srs->sr_state.rid );
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,	syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET, &cookie, 0, uuids, 1 );
delcsn[0].bv_len ? &cookie : NULL, 0, uuids, 1 );	op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
if ( delcsn[0].bv_len ) {
op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
}
}	}
op->o_tmpfree( uuids, op->o_tmpmemctx );	op->o_tmpfree( uuids, op->o_tmpmemctx );
}	}
Line 1761 syncprov_op_response( Operation *op, Sla	Line 1508 syncprov_op_response( Operation *op, Sla

if ( rs->sr_err == LDAP_SUCCESS )	if ( rs->sr_err == LDAP_SUCCESS )
{	{
struct berval maxcsn;	struct berval maxcsn = BER_BVNULL;
char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];	char cbuf[LDAP_LUTIL_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';
maxcsn.bv_val = cbuf;	ldap_pvt_thread_mutex_lock( &si->si_csn_mutex );
maxcsn.bv_len = sizeof(cbuf);	slap_get_commit_csn( op, &maxcsn );
ldap_pvt_thread_rdwr_wlock( &si->si_csn_rwlock );	if ( !BER_BVISNULL( &maxcsn ) ) {
	strcpy( cbuf, maxcsn.bv_val );
slap_get_commit_csn( op, &maxcsn, &foundit );	if ( ber_bvcmp( &maxcsn, &si->si_ctxcsn ) > 0 ) {
if ( BER_BVISEMPTY( &maxcsn ) && SLAP_GLUE_SUBORDINATE( op->o_bd )) {	strcpy( si->si_ctxcsnbuf, cbuf );
/* syncrepl queues the CSN values in the db where	si->si_ctxcsn.bv_len = maxcsn.bv_len;
* 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 ( op->o_dont_replicate ) {	if ( SLAP_SYNC_SHADOW( op->o_bd ) &&
if ( op->o_tag == LDAP_REQ_MODIFY &&	op->o_msgid == SLAP_SYNC_UPDATE_MSGID ) {
op->orm_modlist->sml_op == LDAP_MOD_REPLACE &&	ldap_pvt_thread_mutex_unlock( &si->si_csn_mutex );
op->orm_modlist->sml_desc == slap_schema.si_ad_contextCSN ) {	return SLAP_CB_CONTINUE;
/* 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;
unsigned i;
int 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;
}
}
if ( csn_changed )
si->si_dirty = 0;
ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );

if ( csn_changed ) {
syncops *ss;
ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
for ( ss = si->si_ops; ss; ss = ss->s_next ) {
if ( ss->s_op->o_abandon )
continue;
/* Send the updated csn to all syncrepl consumers,
* including the server from which it originated.
* The syncrepl consumer and syncprov provider on
* the originating server may be configured to store
* their csn values in different entries.
*/
syncprov_qresp( opc, ss, LDAP_SYNC_NEW_COOKIE );
}
ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
}
} 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 ) {
/* Never checkpoint adding the context entry,	int do_check=0;
* it will deadlock	if ( si->si_chkops && si->si_numops >= si->si_chkops ) {
*/	do_check = 1;
if ( op->o_tag != LDAP_REQ_ADD \|\|	si->si_numops = 0;
!dn_match( &op->o_req_ndn, &si->si_contextdn )) {	}
if ( si->si_chkops && si->si_numops >= si->si_chkops ) {	if ( si->si_chktime &&
do_check = 1;	(op->o_time - si->si_chklast >= si->si_chktime )) {
si->si_numops = 0;	do_check = 1;
}	si->si_chklast = op->o_time;
if ( si->si_chktime &&	}
(op->o_time - si->si_chklast >= si->si_chktime )) {	if ( do_check ) {
if ( si->si_chklast ) {	syncprov_checkpoint( op, rs, on );
do_check = 1;
si->si_chklast = op->o_time;
} else {
si->si_chklast = 1;
}
}
}	}
}	}
si->si_dirty = !csn_changed;	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, on );
ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
}

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

/* Handle any persistent searches */	/* Handle any persistent searches */
ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );	if ( si->si_ops ) {
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 1936 syncprov_op_response( Operation *op, Sla	Line 1574 syncprov_op_response( Operation *op, Sla
}	}

/* Add any log records */	/* Add any log records */
if ( si->si_logs ) {	if ( si->si_logs && op->o_tag != LDAP_REQ_ADD ) {
syncprov_add_slog( op );	syncprov_add_slog( op );
}	}
leave: ldap_pvt_thread_mutex_unlock( &si->si_resp_mutex );
}	}
return SLAP_CB_CONTINUE;	return SLAP_CB_CONTINUE;
}	}
Line 1955 syncprov_op_compare( Operation *op, Slap	Line 1593 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, &si->si_contextdn ) &&	if ( dn_match( &op->o_req_ndn, op->o_bd->be_nsuffix ) &&
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 = si->si_contextdn;	e.e_name = op->o_bd->be_suffix[0];
e.e_nname = si->si_contextdn;	e.e_nname = op->o_bd->be_nsuffix[0];
e.e_attrs = &a;

a.a_desc = slap_schema.si_ad_contextCSN;

ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );	BER_BVZERO( &bv[1] );
	bv[0] = si->si_ctxcsn;

a.a_vals = si->si_ctxcsn;	a.a_desc = slap_schema.si_ad_contextCSN;
	a.a_vals = bv;
a.a_nvals = a.a_vals;	a.a_nvals = a.a_vals;
a.a_numvals = si->si_numcsns;
	ldap_pvt_thread_mutex_lock( &si->si_csn_mutex );

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 1990 syncprov_op_compare( Operation *op, Slap	Line 1629 syncprov_op_compare( Operation *op, Slap

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

if ( attr_valfind( &a,	if ( value_find_ex( op->oq_compare.rs_ava->aa_desc,
SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH \|	SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH \|
SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,	SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
&op->oq_compare.rs_ava->aa_value, NULL, op->o_tmpmemctx ) == 0 )	a.a_nvals, &op->oq_compare.rs_ava->aa_value, op->o_tmpmemctx ) == 0 )
{	{
rs->sr_err = LDAP_COMPARE_TRUE;	rs->sr_err = LDAP_COMPARE_TRUE;
}	}

return_results:;	return_results:;

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

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

Line 2018 syncprov_op_mod( Operation *op, SlapRepl	Line 1657 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;

ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
have_psearches = ( si->si_ops != NULL );
si->si_active++;
ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );

cbsize = sizeof(slap_callback) + sizeof(opcookie) +
(have_psearches ? sizeof(modinst) : 0 );

cb = op->o_tmpcalloc(1, cbsize, op->o_tmpmemctx);	slap_callback *cb = op->o_tmpcalloc(1, sizeof(slap_callback)+
opc = (opcookie *)(cb+1);	sizeof(opcookie) +
	(si->si_ops ? sizeof(modinst) : 0 ),
	op->o_tmpmemctx);
	opcookie 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 2039 syncprov_op_mod( Operation *op, SlapRepl	Line 1670 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 ( have_psearches ) {	if ( si->si_ops ) {
modtarget *mt, mtdummy;	modtarget *mt, mtdummy;
modinst *mi;	modinst *mi;

Line 2067 syncprov_op_mod( Operation *op, SlapRepl	Line 1686 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 );
/* FIXME: if dynamic config can delete overlays or	ldap_pvt_thread_yield();
* 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 2117 syncprov_op_mod( Operation *op, SlapRepl	Line 1718 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 (( have_psearches \|\| si->si_logs ) && op->o_tag != LDAP_REQ_ADD )	if (( si->si_ops \|\| 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 2138 syncprov_op_extended( Operation *op, Sla	Line 1738 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;
BerVarray ss_ctxcsn;	int ss_present;
int *ss_sids;	struct berval ss_ctxcsn;
int ss_numcsns;	char ss_csnbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
#define SS_PRESENT 0x01
#define SS_CHANGED 0x02
int ss_flags;
} searchstate;	} searchstate;

static int	static int
Line 2157 syncprov_search_cleanup( Operation *op,	Line 1754 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 2180 syncprov_detach_op( Operation *op, synco	Line 1768 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 = offsetof( SyncOperationBuffer, sob_extra ) +	size = sizeof(Operation) + sizeof(Opheader) +
(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;
sopbuf2 = ch_calloc( 1, size );	op2 = (Operation *)ch_calloc( 1, size );
op2 = &sopbuf2->sob_op;	op2->o_hdr = (Opheader *)(op2+1);
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 2197 syncprov_detach_op( Operation *op, synco	Line 1783 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_managedsait = op->o_managedsait;	op2->o_private = on;
LDAP_SLIST_FIRST(&op2->o_extra)->oe_key = on;
LDAP_SLIST_NEXT(LDAP_SLIST_FIRST(&op2->o_extra), oe_next) = NULL;

ptr = (char *) sopbuf2 + offsetof( SyncOperationBuffer, sob_extra );
if ( i ) {	if ( i ) {
op2->ors_attrs = (AttributeName *) ptr;	op2->ors_attrs = (AttributeName *)(op2->o_hdr + 1);
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 2250 syncprov_detach_op( Operation *op, synco	Line 1834 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 2264 syncprov_search_response( Operation *op,	Line 1850 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 2284 syncprov_search_response( Operation *op,	Line 1869 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 ) {
int i, sid;	/* Make sure entry is less than the snapshot'd contextCSN */
sid = slap_parse_csn_sid( &a->a_nvals[0] );	if ( ber_bvcmp( &a->a_nvals[0], &ss->ss_ctxcsn ) > 0 ) {
	Debug( LDAP_DEBUG_SYNC, "Entry %s CSN %s greater than snapshot %s\n",
/* Don't send changed entries back to the originator */	rs->sr_entry->e_name.bv_val,
if ( sid == srs->sr_state.sid && srs->sr_state.numcsns ) {	a->a_nvals[0].bv_val,
Debug( LDAP_DEBUG_SYNC,	ss->ss_ctxcsn.bv_val );
"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 */	/* Don't send the ctx entry twice */
if ( !ss->ss_so ) {	if ( !BER_BVISNULL( &srs->sr_state.ctxcsn ) &&
/* Make sure entry is less than the snapshot'd contextCSN */	bvmatch( &a->a_nvals[0], &srs->sr_state.ctxcsn ) ) {
for ( i=0; i<ss->ss_numcsns; i++ ) {	Debug( LDAP_DEBUG_SYNC, "Entry %s CSN %s matches ctx %s\n",
if ( sid == ss->ss_sids[i] && ber_bvcmp( &a->a_nvals[0],	rs->sr_entry->e_name.bv_val,
&ss->ss_ctxcsn[i] ) > 0 ) {	a->a_nvals[0].bv_val,
Debug( LDAP_DEBUG_SYNC,	srs->sr_state.ctxcsn.bv_val );
"Entry %s CSN %s greater than snapshot %s\n",	return LDAP_SUCCESS;
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_flags \|= REP_CTRLS_MUSTBEFREED;	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 = BER_BVNULL;	struct berval cookie;

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

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

/* 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_flags & SS_PRESENT ) ? LDAP_SYNC_REFRESH_PRESENTS :	0, 1, &cookie, ss->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_flags & SS_PRESENT ) ?	syncprov_sendinfo( op, rs, ss->ss_present ?
LDAP_TAG_SYNC_REFRESH_PRESENT : LDAP_TAG_SYNC_REFRESH_DELETE,	LDAP_TAG_SYNC_REFRESH_PRESENT : LDAP_TAG_SYNC_REFRESH_DELETE,
( ss->ss_flags & SS_CHANGED ) ? &cookie : NULL,	&cookie, 1, NULL, 0 );
1, NULL, 0 );	op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
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( &op->o_conn->c_mutex );	ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex );

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

} else {	syncprov_detach_op( op, ss->ss_so, on );
ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex );
/* Turn off the refreshing flag */	/* If there are queued responses, fire them off */
ss->ss_so->s_flags ^= PS_IS_REFRESHING;	if ( ss->ss_so->s_res )
	syncprov_qstart( ss->ss_so );
syncprov_detach_op( op, ss->ss_so, on );	ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );

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 2409 syncprov_op_search( Operation *op, SlapR	Line 1941 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, changed = 0, do_present = 0;	int gotstate = 0, nochange = 0, do_present;
syncops *sop = NULL;	syncops *sop = NULL;
searchstate *ss;	searchstate *ss;
sync_control *srs;	sync_control *srs;
BerVarray ctxcsn;	struct berval ctxcsn;
int i, *sids, numcsns;	char csnbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
struct berval mincsn, maxcsn;
int dirty = 0;

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 2425 syncprov_op_search( Operation *op, SlapR	Line 1955 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 2457 syncprov_op_search( Operation *op, SlapR	Line 1990 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 );
while ( si->si_active ) {
/* Wait for active mods to finish before proceeding, as they
* may already have inspected the si_ops list looking for
* consumers to replicate the change to. Using the log
* doesn't help, as we may finish playing it before the
* active mods gets added to it.
*/
ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
if ( slapd_shutdown )
return SLAPD_ABANDON;
if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
ldap_pvt_thread_yield();
ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
}
sop->s_next = si->si_ops;	sop->s_next = si->si_ops;
si->si_ops = sop;	si->si_ops = sop;
ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );	ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
}	}

/* snapshot the ctxcsn */	/* snapshot the ctxcsn */
ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );	ldap_pvt_thread_mutex_lock( &si->si_csn_mutex );
numcsns = si->si_numcsns;	strcpy( csnbuf, si->si_ctxcsnbuf );
if ( numcsns ) {	ctxcsn.bv_len = si->si_ctxcsn.bv_len;
ber_bvarray_dup_x( &ctxcsn, si->si_ctxcsn, op->o_tmpmemctx );	ldap_pvt_thread_mutex_unlock( &si->si_csn_mutex );
sids = op->o_tmpalloc( numcsns * sizeof(int), op->o_tmpmemctx );	ctxcsn.bv_val = csnbuf;
for ( i=0; i<numcsns; i++ )
sids[i] = si->si_sids[i];
} else {
ctxcsn = NULL;
sids = NULL;
}
dirty = si->si_dirty;
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 ( srs->sr_state.ctxcsn ) {	if ( !BER_BVISNULL( &srs->sr_state.ctxcsn )) {
sessionlog *sl;	sessionlog *sl;
int i, j;

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

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

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

/* Find the smallest CSN which differs from contextCSN */
mincsn.bv_len = 0;
maxcsn.bv_len = 0;
for ( i=0; i<srs->sr_state.numcsns; i++ ) {
for ( j=0; j<numcsns; j++ ) {
if ( srs->sr_state.sids[i] != sids[j] )
continue;
if ( BER_BVISEMPTY( &maxcsn ) \|\| ber_bvcmp( &maxcsn,
&srs->sr_state.ctxcsn[i] ) < 0 ) {
maxcsn = srs->sr_state.ctxcsn[i];
}
if ( ber_bvcmp( &srs->sr_state.ctxcsn[i], &ctxcsn[j] ) < 0) {
if ( BER_BVISEMPTY( &mincsn ) \|\| ber_bvcmp( &mincsn,
&srs->sr_state.ctxcsn[i] ) > 0 ) {
mincsn = srs->sr_state.ctxcsn[i];
}
}
}
}
if ( BER_BVISEMPTY( &mincsn ))
mincsn = maxcsn;

/* If nothing has changed, shortcut it */
if ( srs->sr_state.numcsns == numcsns ) {
int i, j, newer;
for ( i=0; i<srs->sr_state.numcsns; i++ ) {
for ( j=0; j<numcsns; j++ ) {
if ( srs->sr_state.sids[i] != sids[j] )
continue;
newer = ber_bvcmp( &srs->sr_state.ctxcsn[i], &ctxcsn[j] );
/* If our state is newer, tell consumer about changes */
if ( newer < 0 )
changed = SS_CHANGED;
else if ( newer > 0 ) {
/* our state is older, complain to consumer */
rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
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 && !dirty ) {
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;
}
} 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;
Line 2615 no_change: if ( !(op->o_sync_mode & SLA	Line 2036 no_change: if ( !(op->o_sync_mode & SLA
/* Are there any log entries, and is the consumer state	/* Are there any log entries, and is the consumer state
* present in the session log?	* present in the session log?
*/	*/
if ( sl->sl_num > 0 && ber_bvcmp( &mincsn, &sl->sl_mincsn ) >= 0 ) {	if ( sl->sl_num > 0 && ber_bvcmp( &srs->sr_state.ctxcsn, &sl->sl_mincsn ) >= 0 ) {
do_present = 0;	do_present = 0;
/* mutex is unlocked in playlog */	/* mutex is unlocked in playlog */
syncprov_playlog( op, rs, sl, srs, ctxcsn, numcsns, sids );	syncprov_playlog( op, rs, sl, srs, &ctxcsn );
} else {	} else {
ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );	ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
}	}
Line 2628 no_change: if ( !(op->o_sync_mode & SLA	Line 2049 no_change: if ( !(op->o_sync_mode & SLA
/* No, so a reload is required */	/* No, so a reload is required */
/* the 2.2 consumer doesn't send this hint */	/* the 2.2 consumer doesn't send this hint */
if ( si->si_usehint && srs->sr_rhint == 0 ) {	if ( si->si_usehint && srs->sr_rhint == 0 ) {
if ( ctxcsn )	send_ldap_error( op, rs, LDAP_SYNC_REFRESH_REQUIRED, "sync cookie is stale" );
ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );	return rs->sr_err;
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 ) {
if ( ctxcsn )	send_ldap_result( op, rs );
ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );	return rs->sr_err;
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 2671 shortcut:	Line 2072 shortcut:
}	}

/* If something changed, find the changes */	/* If something changed, find the changes */
if ( gotstate && ( changed \|\| dirty ) ) {	if ( gotstate && !nochange ) {
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 2685 shortcut:	Line 2086 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, &mincsn, op->o_tmpmemctx );	ber_dupbv_x( &fava->f_ava->aa_value, &srs->sr_state.ctxcsn, 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 ) {	if ( sop )
sop->s_flags \|= PS_FIX_FILTER;	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 2702 shortcut:	Line 2099 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_flags = do_present \| changed;	ss->ss_present = do_present;
ss->ss_ctxcsn = ctxcsn;	ss->ss_ctxcsn.bv_len = ctxcsn.bv_len;
ss->ss_numcsns = numcsns;	ss->ss_ctxcsn.bv_val = ss->ss_csnbuf;
ss->ss_sids = sids;	strcpy( ss->ss_ctxcsn.bv_val, ctxcsn.bv_val );
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 ( !changed && !dirty ) {	if ( nochange ) {
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 2733 syncprov_operational(	Line 2134 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, &si->si_contextdn )) {	dn_match( &rs->sr_entry->e_nname, op->o_bd->be_nsuffix )) {

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 2751 syncprov_operational(	Line 2146 syncprov_operational(
break;	break;
}	}

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

a = attr_alloc( slap_schema.si_ad_contextCSN );	a = attr_alloc( 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;
	*ap = a;
	}

if ( !ap ) {	ldap_pvt_thread_mutex_lock( &si->si_csn_mutex );
if ( rs_entry2modifiable( op, rs, on )) {	if ( !ap ) {
a = attr_find( rs->sr_entry->e_attrs,	strcpy( a->a_vals[0].bv_val, si->si_ctxcsnbuf );
slap_schema.si_ad_contextCSN );	} else {
}	ber_dupbv( &a->a_vals[0], &si->si_ctxcsn );
if ( a->a_nvals != a->a_vals ) {
ber_bvarray_free( a->a_nvals );
}
a->a_nvals = NULL;
ber_bvarray_free( a->a_vals );
a->a_vals = NULL;
a->a_numvals = 0;
}
attr_valadd( a, si->si_ctxcsn, si->si_ctxcsn, si->si_numcsns );
}	}
ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );	ldap_pvt_thread_mutex_unlock( &si->si_csn_mutex );
}	}
}	}
return SLAP_CB_CONTINUE;	return SLAP_CB_CONTINUE;
Line 2816 static ConfigOCs spocs[] = {	Line 2202 static ConfigOCs spocs[] = {
"NAME 'olcSyncProvConfig' "	"NAME 'olcSyncProvConfig' "
"DESC 'SyncRepl Provider configuration' "	"DESC 'SyncRepl Provider configuration' "
"SUP olcOverlayConfig "	"SUP olcOverlayConfig "
"MAY ( olcSpCheckpoint "	"MAY ( olcSpCheckpoint $ olcSpSessionlog $ olcSpNoPresent ) )",
"$ olcSpSessionlog "
"$ olcSpNoPresent "
"$ olcSpReloadHint "
") )",
Cft_Overlay, spcfg },	Cft_Overlay, spcfg },
{ NULL, 0, NULL }	{ NULL, 0, NULL }
};	};
Line 2837 sp_cf_gen(ConfigArgs *c)	Line 2219 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;
/* we assume si_chktime is a multiple of 60	bv.bv_len = sprintf( c->msg, "%d %d",
* because the parsed value was originally	si->si_chkops, si->si_chktime );
* multiplied by 60 */	bv.bv_val = c->msg;
bv.bv_len = snprintf( c->cr_msg, sizeof( c->cr_msg ),	value_add_one( &c->rvalue_vals, &bv );
"%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 2905 sp_cf_gen(ConfigArgs *c)	Line 2280 sp_cf_gen(ConfigArgs *c)
switch ( c->type ) {	switch ( c->type ) {
case SP_CHKPT:	case SP_CHKPT:
if ( lutil_atoi( &si->si_chkops, c->argv[1] ) != 0 ) {	if ( lutil_atoi( &si->si_chkops, c->argv[1] ) != 0 ) {
snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint ops # \"%s\"",	sprintf( c->msg, "%s unable to parse checkpoint ops # \"%s\"",
c->argv[0], c->argv[1] );	c->argv[0], c->argv[1] );
Debug( LDAP_DEBUG_CONFIG\|LDAP_DEBUG_NONE,	Debug( LDAP_DEBUG_CONFIG, "%s: %s\n", c->log, c->msg, 0 );
"%s: %s\n", c->log, c->cr_msg, 0 );
return ARG_BAD_CONF;	return ARG_BAD_CONF;
}	}
if ( si->si_chkops <= 0 ) {	if ( si->si_chkops <= 0 ) {
snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint ops # \"%d\"",	sprintf( c->msg, "%s invalid checkpoint ops # \"%d\"",
c->argv[0], si->si_chkops );	c->argv[0], si->si_chkops );
Debug( LDAP_DEBUG_CONFIG\|LDAP_DEBUG_NONE,	Debug( LDAP_DEBUG_CONFIG, "%s: %s\n", c->log, c->msg, 0 );
"%s: %s\n", c->log, c->cr_msg, 0 );
return ARG_BAD_CONF;	return ARG_BAD_CONF;
}	}
if ( lutil_atoi( &si->si_chktime, c->argv[2] ) != 0 ) {	if ( lutil_atoi( &si->si_chktime, c->argv[2] ) != 0 ) {
snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint time \"%s\"",	sprintf( c->msg, "%s unable to parse checkpoint time \"%s\"",
c->argv[0], c->argv[1] );	c->argv[0], c->argv[1] );
Debug( LDAP_DEBUG_CONFIG\|LDAP_DEBUG_NONE,	Debug( LDAP_DEBUG_CONFIG, "%s: %s\n", c->log, c->msg, 0 );
"%s: %s\n", c->log, c->cr_msg, 0 );
return ARG_BAD_CONF;	return ARG_BAD_CONF;
}	}
if ( si->si_chktime <= 0 ) {	if ( si->si_chktime <= 0 ) {
snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint time \"%d\"",	sprintf( c->msg, "%s invalid checkpoint time \"%d\"",
c->argv[0], si->si_chkops );	c->argv[0], si->si_chkops );
Debug( LDAP_DEBUG_CONFIG\|LDAP_DEBUG_NONE,	Debug( LDAP_DEBUG_CONFIG, "%s: %s\n", c->log, c->msg, 0 );
"%s: %s\n", c->log, c->cr_msg, 0 );
return ARG_BAD_CONF;	return ARG_BAD_CONF;
}	}
si->si_chktime *= 60;	si->si_chktime *= 60;
Line 2939 sp_cf_gen(ConfigArgs *c)	Line 2310 sp_cf_gen(ConfigArgs *c)
int size = c->value_int;	int size = c->value_int;

if ( size < 0 ) {	if ( size < 0 ) {
snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s size %d is negative",	sprintf( c->msg, "%s size %d is negative",
c->argv[0], size );	c->argv[0], size );
Debug( LDAP_DEBUG_CONFIG\|LDAP_DEBUG_NONE,	Debug( LDAP_DEBUG_CONFIG, "%s: %s\n", c->log, c->msg, 0 );
"%s: %s\n", c->log, c->cr_msg, 0 );
return ARG_BAD_CONF;	return ARG_BAD_CONF;
}	}
sl = si->si_logs;	sl = si->si_logs;
if ( !sl ) {	if ( !sl ) {
sl = ch_malloc( sizeof( sessionlog ) + LDAP_PVT_CSNSTR_BUFSIZE );	sl = ch_malloc( sizeof( sessionlog ) + LDAP_LUTIL_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 2986 syncprov_db_otask(	Line 2356 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;	OperationBuffer opbuf = { 0 };
Operation *op;	char ctxcsnbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
Entry *e = NULL;	Operation op = (Operation ) &opbuf;
	Entry *e;
Attribute *a;	Attribute *a;
int rc;	int rc;
void *thrctx = NULL;	void *thrctx = NULL;
Line 3017 syncprov_db_open(	Line 2387 syncprov_db_open(
}	}

thrctx = ldap_pvt_thread_pool_context();	thrctx = ldap_pvt_thread_pool_context();
connection_fake_init2( &conn, &opbuf, thrctx, 0 );	connection_fake_init( &conn, op, thrctx );
op = &opbuf.ob_op;
op->o_bd = be;	op->o_bd = be;
op->o_dn = be->be_rootdn;	op->o_dn = be->be_rootdn;
op->o_ndn = be->be_rootndn;	op->o_ndn = be->be_rootndn;

if ( SLAP_SYNC_SUBENTRY( be )) {	ctxcsnbuf[0] = '\0';
build_new_dn( &si->si_contextdn, be->be_nsuffix,
(struct berval *)&slap_ldapsync_cn_bv, NULL );	op->o_bd->bd_info = on->on_info->oi_orig;
} else {	rc = be_entry_get_rw( op, be->be_nsuffix, NULL,
si->si_contextdn = be->be_nsuffix[0];	slap_schema.si_ad_contextCSN, 0, &e );
}
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 ) {
ber_bvarray_dup_x( &si->si_ctxcsn, a->a_vals, NULL );	si->si_ctxcsn.bv_len = a->a_nvals[0].bv_len;
si->si_numcsns = a->a_numvals;	if ( si->si_ctxcsn.bv_len >= sizeof(si->si_ctxcsnbuf ))
si->si_sids = slap_parse_csn_sids( si->si_ctxcsn, a->a_numvals, NULL );	si->si_ctxcsn.bv_len = sizeof(si->si_ctxcsnbuf)-1;
}	strncpy( si->si_ctxcsnbuf, a->a_nvals[0].bv_val,
overlay_entry_release_ov( op, e, 0, on );	si->si_ctxcsn.bv_len );
if ( si->si_ctxcsn && !SLAP_DBCLEAN( be )) {	si->si_ctxcsnbuf[si->si_ctxcsn.bv_len] = '\0';
	strcpy( ctxcsnbuf, si->si_ctxcsnbuf );
	}
	be_entry_release_rw( op, e, 0 );
	if ( !BER_BVISEMPTY( &si->si_ctxcsn ) ) {
	op->o_bd->bd_info = (BackendInfo *)on;
op->o_req_dn = be->be_suffix[0];	op->o_req_dn = be->be_suffix[0];
op->o_req_ndn = be->be_nsuffix[0];	op->o_req_ndn = be->be_nsuffix[0];
op->ors_scope = LDAP_SCOPE_SUBTREE;	op->ors_scope = LDAP_SCOPE_SUBTREE;
Line 3051 syncprov_db_open(	Line 2422 syncprov_db_open(
}	}
}	}

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

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

/* make sure we do a checkpoint on close */
si->si_numops++;
}	}

/* Initialize the sessionlog mincsn */	/* If our ctxcsn is different from what was read from the root
if ( si->si_logs && si->si_numcsns ) {	* entry, make sure we do a checkpoint on close
sessionlog *sl = si->si_logs;	*/
int i;	if ( strcmp( si->si_ctxcsnbuf, ctxcsnbuf )) {
/* If there are multiple, find the newest */	si->si_numops++;
for ( i=0; i < si->si_numcsns; i++ ) {
if ( ber_bvcmp( &sl->sl_mincsn, &si->si_ctxcsn[i] ) < 0 ) {
AC_MEMCPY( sl->sl_mincsn.bv_val, si->si_ctxcsn[i].bv_val,
si->si_ctxcsn[i].bv_len );
sl->sl_mincsn.bv_len = si->si_ctxcsn[i].bv_len;
}
}
}	}

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 3098 out:	Line 2451 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 3109 syncprov_db_close(	Line 2461 syncprov_db_close(
return 0;	return 0;
}	}
if ( si->si_numops ) {	if ( si->si_numops ) {
Connection conn = {0};	Connection conn;
OperationBuffer opbuf;	OperationBuffer opbuf;
Operation *op;	Operation op = (Operation ) &opbuf;
	SlapReply rs = {REP_RESULT};
void *thrctx;	void *thrctx;

thrctx = ldap_pvt_thread_pool_context();	thrctx = ldap_pvt_thread_pool_context();
connection_fake_init2( &conn, &opbuf, thrctx, 0 );	connection_fake_init( &conn, op, thrctx );
op = &opbuf.ob_op;
op->o_bd = be;	op->o_bd = be;
op->o_dn = be->be_rootdn;	op->o_dn = be->be_rootdn;
op->o_ndn = be->be_rootndn;	op->o_ndn = be->be_rootndn;
syncprov_checkpoint( op, on );	syncprov_checkpoint( op, &rs, on );
	ldap_pvt_thread_pool_context_reset( thrctx );
}	}

return 0;	return 0;
Line 3128 syncprov_db_close(	Line 2481 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_rdwr_init( &si->si_csn_rwlock );	ldap_pvt_thread_mutex_init( &si->si_csn_mutex );
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 );
ldap_pvt_thread_mutex_init( &si->si_resp_mutex );	si->si_ctxcsn.bv_val = si->si_ctxcsnbuf;

csn_anlist[0].an_desc = slap_schema.si_ad_entryCSN;	csn_anlist[0].an_desc = slap_schema.si_ad_entryCSN;
csn_anlist[0].an_name = slap_schema.si_ad_entryCSN->ad_cname;	csn_anlist[0].an_name = slap_schema.si_ad_entryCSN->ad_cname;
Line 3162 syncprov_db_init(	Line 2507 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 3179 syncprov_db_destroy(	Line 2523 syncprov_db_destroy(
se = se_next;	se = se_next;
}	}

ldap_pvt_thread_mutex_destroy(&si->si_logs->sl_mutex);
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_rdwr_destroy( &si->si_csn_rwlock );	ldap_pvt_thread_mutex_destroy( &si->si_csn_mutex );
ch_free( si );	ch_free( si );
}	}

Line 3220 static int syncprov_parseCtrl (	Line 2558 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";	rs->sr_text = "Sync control value is empty (or absent)";
return LDAP_PROTOCOL_ERROR;	return LDAP_PROTOCOL_ERROR;
}	}

Line 3284 static int syncprov_parseCtrl (	Line 2617 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 );
/* If parse fails, pretend no cookie was sent */	slap_parse_sync_cookie( &sr->sr_state, op->o_tmpmemctx );
if ( slap_parse_sync_cookie( &sr->sr_state, op->o_tmpmemctx ) \|\|	if ( sr->sr_state.rid == -1 ) {
sr->sr_state.rid == -1 ) {	rs->sr_text = "Sync control : cookie parsing error";
if ( sr->sr_state.ctxcsn ) {	return LDAP_PROTOCOL_ERROR;
ber_bvarray_free_x( sr->sr_state.ctxcsn, op->o_tmpmemctx );
sr->sr_state.ctxcsn = NULL;
}
sr->sr_state.numcsns = 0;
}	}
}	}

Removed from v.1.147.2.92
changed lines
	Added in v.1.160