/* Add one ID to an unsorted list. We ensure that the first element is the
* minimum and the last element is the maximum, for fast range compaction.
* this means IDLs up to length 3 are always sorted...
*/
int mdb_idl_append_one( ID *ids, ID id )
{
if (MDB_IDL_IS_RANGE( ids )) {
/* if already in range, treat as a dup */
if (id >= MDB_IDL_RANGE_FIRST(ids) && id <= MDB_IDL_RANGE_LAST(ids))
return -1;
if (id < MDB_IDL_RANGE_FIRST(ids))
ids[1] = id;
else if (id > MDB_IDL_RANGE_LAST(ids))
ids[2] = id;
return 0;
}
if ( ids[0] ) {
ID tmp;
if (id < ids[1]) {
tmp = ids[1];
ids[1] = id;
id = tmp;
}
if ( ids[0] > 1 && id < ids[ids[0]] ) {
tmp = ids[ids[0]];
ids[ids[0]] = id;
id = tmp;
}
}
ids[0]++;
if ( ids[0] >= MDB_IDL_UM_MAX ) {
ids[0] = NOID;
ids[2] = id;
} else {
ids[ids[0]] = id;
}
return 0;
}
int mdb_idl_insert( ID *ids, ID id )
{
unsigned x;
#if IDL_DEBUG > 1
Debug( LDAP_DEBUG_ANY, "insert: %04lx at %d\n", (long) id, x, 0 );
idl_dump( ids );
#elif IDL_DEBUG > 0
idl_check( ids );
#endif
if (MDB_IDL_IS_RANGE( ids )) {
/* if already in range, treat as a dup */
if (id >= MDB_IDL_RANGE_FIRST(ids) && id <= MDB_IDL_RANGE_LAST(ids))
return -1;
if (id < MDB_IDL_RANGE_FIRST(ids))
ids[1] = id;
else if (id > MDB_IDL_RANGE_LAST(ids))
ids[2] = id;
return 0;
}
x = mdb_idl_search( ids, id );
assert( x > 0 );
if( x < 1 ) {
/* internal error */
return -2;
}
if ( x <= ids[0] && ids[x] == id ) {
/* duplicate */
return -1;
}
if ( ++ids[0] >= MDB_IDL_DB_MAX ) {
if( id < ids[1] ) {
ids[1] = id;
ids[2] = ids[ids[0]-1];
} else if ( ids[ids[0]-1] < id ) {
ids[2] = id;
} else {
ids[2] = ids[ids[0]-1];
}
ids[0] = NOID;
} else {
/* insert id */
AC_MEMCPY( &ids[x+1], &ids[x], (ids[0]-x) * sizeof(ID) );
ids[x] = id;
}
#if IDL_DEBUG > 1
idl_dump( ids );
#elif IDL_DEBUG > 0
idl_check( ids );
#endif
return 0;
}
int mdb_midl_insert( MDB_IDL ids, MDB_ID id )
{
unsigned x, i;
if (MDB_IDL_IS_RANGE( ids )) {
/* if already in range, treat as a dup */
if (id >= MDB_IDL_RANGE_FIRST(ids) && id <= MDB_IDL_RANGE_LAST(ids))
return -1;
if (id < MDB_IDL_RANGE_FIRST(ids))
ids[1] = id;
else if (id > MDB_IDL_RANGE_LAST(ids))
ids[2] = id;
return 0;
}
x = mdb_midl_search( ids, id );
assert( x > 0 );
if( x < 1 ) {
/* internal error */
return -2;
}
if ( x <= ids[0] && ids[x] == id ) {
/* duplicate */
assert(0);
return -1;
}
if ( ++ids[0] >= MDB_IDL_DB_MAX ) {
if( id < ids[1] ) {
ids[1] = id;
ids[2] = ids[ids[0]-1];
} else if ( ids[ids[0]-1] < id ) {
ids[2] = id;
} else {
ids[2] = ids[ids[0]-1];
}
ids[0] = MDB_NOID;
} else {
/* insert id */
for (i=ids[0]; i>x; i--)
ids[i] = ids[i-1];
ids[x] = id;
}
return 0;
}
static void idl_check( ID *ids )
{
if( MDB_IDL_IS_RANGE( ids ) ) {
assert( MDB_IDL_RANGE_FIRST(ids) <= MDB_IDL_RANGE_LAST(ids) );
} else {
ID i;
for( i=1; i < ids[0]; i++ ) {
assert( ids[i+1] > ids[i] );
}
}
}
static void idl_dump( ID *ids )
{
if( MDB_IDL_IS_RANGE( ids ) ) {
Debug( LDAP_DEBUG_ANY,
"IDL: range ( %ld - %ld )\n",
(long) MDB_IDL_RANGE_FIRST( ids ),
(long) MDB_IDL_RANGE_LAST( ids ) );
} else {
ID i;
Debug( LDAP_DEBUG_ANY, "IDL: size %ld", (long) ids[0], 0, 0 );
for( i=1; i<=ids[0]; i++ ) {
if( i % 16 == 1 ) {
Debug( LDAP_DEBUG_ANY, "\n", 0, 0, 0 );
}
Debug( LDAP_DEBUG_ANY, " %02lx", (long) ids[i], 0, 0 );
}
Debug( LDAP_DEBUG_ANY, "\n", 0, 0, 0 );
}
idl_check( ids );
}
int
mdb_search( Operation *op, SlapReply *rs )
{
struct mdb_info *mdb = (struct mdb_info *) op->o_bd->be_private;
ID id, cursor, nsubs, ncand, cscope;
ID lastid = NOID;
ID candidates[MDB_IDL_UM_SIZE];
ID iscopes[MDB_IDL_DB_SIZE];
ID2 *scopes;
void *stack;
Entry *e = NULL, *base = NULL;
Entry *matched = NULL;
AttributeName *attrs;
slap_mask_t mask;
time_t stoptime;
int manageDSAit;
int tentries = 0;
IdScopes isc;
MDB_cursor *mci, *mcd;
ww_ctx wwctx;
slap_callback cb = { 0 };
mdb_op_info opinfo = {{{0}}}, *moi = &opinfo;
MDB_txn *ltid = NULL;
Debug( LDAP_DEBUG_TRACE, "=> " LDAP_XSTRING(mdb_search) "\n", 0, 0, 0);
attrs = op->oq_search.rs_attrs;
manageDSAit = get_manageDSAit( op );
rs->sr_err = mdb_opinfo_get( op, mdb, 1, &moi );
switch(rs->sr_err) {
case 0:
break;
default:
send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
return rs->sr_err;
}
ltid = moi->moi_txn;
rs->sr_err = mdb_cursor_open( ltid, mdb->mi_id2entry, &mci );
if ( rs->sr_err ) {
send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
return rs->sr_err;
}
rs->sr_err = mdb_cursor_open( ltid, mdb->mi_dn2id, &mcd );
if ( rs->sr_err ) {
mdb_cursor_close( mci );
send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
return rs->sr_err;
}
scopes = scope_chunk_get( op );
stack = search_stack( op );
isc.mt = ltid;
isc.mc = mcd;
isc.scopes = scopes;
isc.oscope = op->ors_scope;
isc.sctmp = stack;
if ( op->ors_deref & LDAP_DEREF_FINDING ) {
MDB_IDL_ZERO(candidates);
}
dn2entry_retry:
/* get entry with reader lock */
rs->sr_err = mdb_dn2entry( op, ltid, mcd, &op->o_req_ndn, &e, &nsubs, 1 );
switch(rs->sr_err) {
case MDB_NOTFOUND:
matched = e;
e = NULL;
break;
case 0:
break;
case LDAP_BUSY:
send_ldap_error( op, rs, LDAP_BUSY, "ldap server busy" );
goto done;
default:
send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
goto done;
}
if ( op->ors_deref & LDAP_DEREF_FINDING ) {
if ( matched && is_entry_alias( matched )) {
struct berval stub;
stub.bv_val = op->o_req_ndn.bv_val;
stub.bv_len = op->o_req_ndn.bv_len - matched->e_nname.bv_len - 1;
e = deref_base( op, rs, matched, &matched, ltid,
candidates, NULL );
if ( e ) {
build_new_dn( &op->o_req_ndn, &e->e_nname, &stub,
op->o_tmpmemctx );
mdb_entry_return(op, e);
matched = NULL;
goto dn2entry_retry;
}
} else if ( e && is_entry_alias( e )) {
e = deref_base( op, rs, e, &matched, ltid,
candidates, NULL );
}
}
if ( e == NULL ) {
struct berval matched_dn = BER_BVNULL;
if ( matched != NULL ) {
BerVarray erefs = NULL;
/* return referral only if "disclose"
* is granted on the object */
if ( ! access_allowed( op, matched,
slap_schema.si_ad_entry,
NULL, ACL_DISCLOSE, NULL ) )
{
rs->sr_err = LDAP_NO_SUCH_OBJECT;
} else {
ber_dupbv( &matched_dn, &matched->e_name );
erefs = is_entry_referral( matched )
? get_entry_referrals( op, matched )
: NULL;
if ( rs->sr_err == MDB_NOTFOUND )
rs->sr_err = LDAP_REFERRAL;
rs->sr_matched = matched_dn.bv_val;
}
mdb_entry_return(op, matched);
matched = NULL;
if ( erefs ) {
rs->sr_ref = referral_rewrite( erefs, &matched_dn,
&op->o_req_dn, op->oq_search.rs_scope );
ber_bvarray_free( erefs );
}
} else {
rs->sr_ref = referral_rewrite( default_referral,
NULL, &op->o_req_dn, op->oq_search.rs_scope );
rs->sr_err = rs->sr_ref != NULL ? LDAP_REFERRAL : LDAP_NO_SUCH_OBJECT;
}
send_ldap_result( op, rs );
if ( rs->sr_ref ) {
ber_bvarray_free( rs->sr_ref );
rs->sr_ref = NULL;
}
if ( !BER_BVISNULL( &matched_dn ) ) {
ber_memfree( matched_dn.bv_val );
rs->sr_matched = NULL;
}
goto done;
}
/* NOTE: __NEW__ "search" access is required
* on searchBase object */
if ( ! access_allowed_mask( op, e, slap_schema.si_ad_entry,
NULL, ACL_SEARCH, NULL, &mask ) )
{
if ( !ACL_GRANT( mask, ACL_DISCLOSE ) ) {
rs->sr_err = LDAP_NO_SUCH_OBJECT;
} else {
rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
}
mdb_entry_return( op,e);
send_ldap_result( op, rs );
goto done;
}
if ( !manageDSAit && is_entry_referral( e ) ) {
/* entry is a referral */
struct berval matched_dn = BER_BVNULL;
BerVarray erefs = NULL;
ber_dupbv( &matched_dn, &e->e_name );
erefs = get_entry_referrals( op, e );
rs->sr_err = LDAP_REFERRAL;
mdb_entry_return( op, e );
e = NULL;
if ( erefs ) {
rs->sr_ref = referral_rewrite( erefs, &matched_dn,
&op->o_req_dn, op->oq_search.rs_scope );
ber_bvarray_free( erefs );
if ( !rs->sr_ref ) {
rs->sr_text = "bad_referral object";
}
}
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(mdb_search) ": entry is referral\n",
0, 0, 0 );
rs->sr_matched = matched_dn.bv_val;
send_ldap_result( op, rs );
ber_bvarray_free( rs->sr_ref );
rs->sr_ref = NULL;
ber_memfree( matched_dn.bv_val );
rs->sr_matched = NULL;
goto done;
}
if ( get_assert( op ) &&
( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
{
rs->sr_err = LDAP_ASSERTION_FAILED;
mdb_entry_return( op,e);
send_ldap_result( op, rs );
goto done;
}
/* compute it anyway; root does not use it */
stoptime = op->o_time + op->ors_tlimit;
base = e;
e = NULL;
/* select candidates */
if ( op->oq_search.rs_scope == LDAP_SCOPE_BASE ) {
rs->sr_err = base_candidate( op->o_bd, base, candidates );
scopes[0].mid = 0;
ncand = 1;
} else {
if ( op->ors_scope == LDAP_SCOPE_ONELEVEL ) {
size_t nkids;
MDB_val key, data;
key.mv_data = &base->e_id;
key.mv_size = sizeof( ID );
mdb_cursor_get( mcd, &key, &data, MDB_SET );
mdb_cursor_count( mcd, &nkids );
nsubs = nkids - 1;
} else if ( !base->e_id ) {
/* we don't maintain nsubs for entryID 0.
* just grab entry count from id2entry stat
*/
MDB_stat ms;
mdb_stat( ltid, mdb->mi_id2entry, &ms );
nsubs = ms.ms_entries;
}
MDB_IDL_ZERO( candidates );
scopes[0].mid = 1;
scopes[1].mid = base->e_id;
scopes[1].mval.mv_data = NULL;
rs->sr_err = search_candidates( op, rs, base,
&isc, mci, candidates, stack );
ncand = MDB_IDL_N( candidates );
if ( !base->e_id || ncand == NOID ) {
/* grab entry count from id2entry stat
*/
MDB_stat ms;
mdb_stat( ltid, mdb->mi_id2entry, &ms );
if ( !base->e_id )
nsubs = ms.ms_entries;
if ( ncand == NOID )
ncand = ms.ms_entries;
}
}
/* start cursor at beginning of candidates.
*/
cursor = 0;
if ( candidates[0] == 0 ) {
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(mdb_search) ": no candidates\n",
0, 0, 0 );
goto nochange;
}
/* if not root and candidates exceed to-be-checked entries, abort */
if ( op->ors_limit /* isroot == FALSE */ &&
op->ors_limit->lms_s_unchecked != -1 &&
ncand > (unsigned) op->ors_limit->lms_s_unchecked )
{
rs->sr_err = LDAP_ADMINLIMIT_EXCEEDED;
send_ldap_result( op, rs );
rs->sr_err = LDAP_SUCCESS;
goto done;
}
if ( op->ors_limit == NULL /* isroot == TRUE */ ||
!op->ors_limit->lms_s_pr_hide )
{
tentries = ncand;
}
wwctx.flag = 0;
/* If we're running in our own read txn */
if ( moi == &opinfo ) {
cb.sc_writewait = mdb_writewait;
cb.sc_private = &wwctx;
wwctx.txn = ltid;
wwctx.mcd = NULL;
cb.sc_next = op->o_callback;
op->o_callback = &cb;
}
if ( get_pagedresults( op ) > SLAP_CONTROL_IGNORED ) {
PagedResultsState *ps = op->o_pagedresults_state;
/* deferred cookie parsing */
rs->sr_err = parse_paged_cookie( op, rs );
if ( rs->sr_err != LDAP_SUCCESS ) {
send_ldap_result( op, rs );
goto done;
}
cursor = (ID) ps->ps_cookie;
if ( cursor && ps->ps_size == 0 ) {
rs->sr_err = LDAP_SUCCESS;
rs->sr_text = "search abandoned by pagedResult size=0";
send_ldap_result( op, rs );
goto done;
}
id = mdb_idl_first( candidates, &cursor );
if ( id == NOID ) {
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(mdb_search)
": no paged results candidates\n",
0, 0, 0 );
send_paged_response( op, rs, &lastid, 0 );
rs->sr_err = LDAP_OTHER;
goto done;
}
if ( id == (ID)ps->ps_cookie )
id = mdb_idl_next( candidates, &cursor );
nsubs = ncand; /* always bypass scope'd search */
goto loop_begin;
}
if ( nsubs < ncand ) {
int rc;
/* Do scope-based search */
/* if any alias scopes were set, save them */
if (scopes[0].mid > 1) {
cursor = 1;
for (cscope = 1; cscope <= scopes[0].mid; cscope++) {
/* Ignore the original base */
if (scopes[cscope].mid == base->e_id)
continue;
iscopes[cursor++] = scopes[cscope].mid;
}
iscopes[0] = scopes[0].mid - 1;
} else {
iscopes[0] = 0;
}
wwctx.mcd = mcd;
isc.id = base->e_id;
isc.numrdns = 0;
rc = mdb_dn2id_walk( op, &isc );
if ( rc )
id = NOID;
else
id = isc.id;
cscope = 0;
} else {
id = mdb_idl_first( candidates, &cursor );
}
while (id != NOID)
{
int scopeok;
MDB_val edata;
loop_begin:
/* check for abandon */
if ( op->o_abandon ) {
rs->sr_err = SLAPD_ABANDON;
send_ldap_result( op, rs );
goto done;
}
/* mostly needed by internal searches,
* e.g. related to syncrepl, for whom
* abandon does not get set... */
if ( slapd_shutdown ) {
rs->sr_err = LDAP_UNAVAILABLE;
send_ldap_disconnect( op, rs );
goto done;
}
/* check time limit */
if ( op->ors_tlimit != SLAP_NO_LIMIT
&& slap_get_time() > stoptime )
{
rs->sr_err = LDAP_TIMELIMIT_EXCEEDED;
rs->sr_ref = rs->sr_v2ref;
send_ldap_result( op, rs );
rs->sr_err = LDAP_SUCCESS;
goto done;
}
if ( nsubs < ncand ) {
unsigned i;
/* Is this entry in the candidate list? */
scopeok = 0;
if (MDB_IDL_IS_RANGE( candidates )) {
if ( id >= MDB_IDL_RANGE_FIRST( candidates ) &&
id <= MDB_IDL_RANGE_LAST( candidates ))
scopeok = 1;
} else {
i = mdb_idl_search( candidates, id );
if ( candidates[i] == id )
scopeok = 1;
}
if ( scopeok )
goto scopeok;
goto loop_continue;
}
/* Does this candidate actually satisfy the search scope?
*/
scopeok = 0;
isc.numrdns = 0;
switch( op->ors_scope ) {
case LDAP_SCOPE_BASE:
/* This is always true, yes? */
if ( id == base->e_id ) scopeok = 1;
break;
#ifdef LDAP_SCOPE_CHILDREN
case LDAP_SCOPE_CHILDREN:
if ( id == base->e_id ) break;
/* Fall-thru */
#endif
case LDAP_SCOPE_SUBTREE:
if ( id == base->e_id ) {
scopeok = 1;
break;
}
/* Fall-thru */
case LDAP_SCOPE_ONELEVEL:
isc.id = id;
isc.nscope = 0;
rs->sr_err = mdb_idscopes( op, &isc );
if ( rs->sr_err == MDB_SUCCESS ) {
if ( isc.nscope )
scopeok = 1;
} else {
if ( rs->sr_err == MDB_NOTFOUND )
goto notfound;
}
break;
}
/* Not in scope, ignore it */
if ( !scopeok )
{
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(mdb_search)
": %ld scope not okay\n",
(long) id, 0, 0 );
goto loop_continue;
}
scopeok:
if ( id == base->e_id ) {
e = base;
} else {
/* get the entry */
rs->sr_err = mdb_id2edata( op, mci, id, &edata );
if ( rs->sr_err == MDB_NOTFOUND ) {
notfound:
if( nsubs < ncand )
goto loop_continue;
if( !MDB_IDL_IS_RANGE(candidates) ) {
/* only complain for non-range IDLs */
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(mdb_search)
": candidate %ld not found\n",
(long) id, 0, 0 );
} else {
/* get the next ID from the DB */
rs->sr_err = mdb_get_nextid( mci, &cursor );
if ( rs->sr_err == MDB_NOTFOUND ) {
break;
}
if ( rs->sr_err ) {
rs->sr_err = LDAP_OTHER;
rs->sr_text = "internal error in get_nextid";
send_ldap_result( op, rs );
goto done;
}
cursor--;
}
goto loop_continue;
} else if ( rs->sr_err ) {
rs->sr_err = LDAP_OTHER;
rs->sr_text = "internal error in mdb_id2edata";
send_ldap_result( op, rs );
goto done;
}
rs->sr_err = mdb_entry_decode( op, ltid, &edata, &e );
if ( rs->sr_err ) {
rs->sr_err = LDAP_OTHER;
rs->sr_text = "internal error in mdb_entry_decode";
send_ldap_result( op, rs );
goto done;
}
e->e_id = id;
e->e_name.bv_val = NULL;
e->e_nname.bv_val = NULL;
}
if ( is_entry_subentry( e ) ) {
if( op->oq_search.rs_scope != LDAP_SCOPE_BASE ) {
if(!get_subentries_visibility( op )) {
/* only subentries are visible */
goto loop_continue;
}
} else if ( get_subentries( op ) &&
!get_subentries_visibility( op ))
{
/* only subentries are visible */
goto loop_continue;
}
} else if ( get_subentries_visibility( op )) {
/* only subentries are visible */
goto loop_continue;
}
/* aliases were already dereferenced in candidate list */
if ( op->ors_deref & LDAP_DEREF_SEARCHING ) {
/* but if the search base is an alias, and we didn't
* deref it when finding, return it.
*/
if ( is_entry_alias(e) &&
((op->ors_deref & LDAP_DEREF_FINDING) || e != base ))
{
goto loop_continue;
}
}
if ( !manageDSAit && is_entry_glue( e )) {
goto loop_continue;
}
if (e != base) {
struct berval pdn, pndn;
char *d, *n;
int i;
/* child of base, just append RDNs to base->e_name */
if ( nsubs < ncand || isc.scopes[isc.nscope].mid == base->e_id ) {
pdn = base->e_name;
pndn = base->e_nname;
} else {
mdb_id2name( op, ltid, &isc.mc, scopes[isc.nscope].mid, &pdn, &pndn );
}
e->e_name.bv_len = pdn.bv_len;
e->e_nname.bv_len = pndn.bv_len;
for (i=0; i<isc.numrdns; i++) {
e->e_name.bv_len += isc.rdns[i].bv_len + 1;
e->e_nname.bv_len += isc.nrdns[i].bv_len + 1;
}
e->e_name.bv_val = op->o_tmpalloc(e->e_name.bv_len + 1, op->o_tmpmemctx);
e->e_nname.bv_val = op->o_tmpalloc(e->e_nname.bv_len + 1, op->o_tmpmemctx);
d = e->e_name.bv_val;
n = e->e_nname.bv_val;
if (nsubs < ncand) {
/* RDNs are in top-down order */
for (i=isc.numrdns-1; i>=0; i--) {
memcpy(d, isc.rdns[i].bv_val, isc.rdns[i].bv_len);
d += isc.rdns[i].bv_len;
*d++ = ',';
memcpy(n, isc.nrdns[i].bv_val, isc.nrdns[i].bv_len);
n += isc.nrdns[i].bv_len;
*n++ = ',';
}
} else {
/* RDNs are in bottom-up order */
for (i=0; i<isc.numrdns; i++) {
memcpy(d, isc.rdns[i].bv_val, isc.rdns[i].bv_len);
d += isc.rdns[i].bv_len;
*d++ = ',';
memcpy(n, isc.nrdns[i].bv_val, isc.nrdns[i].bv_len);
n += isc.nrdns[i].bv_len;
*n++ = ',';
}
}
if (pdn.bv_len) {
memcpy(d, pdn.bv_val, pdn.bv_len+1);
memcpy(n, pndn.bv_val, pndn.bv_len+1);
} else {
*--d = '\0';
*--n = '\0';
e->e_name.bv_len--;
e->e_nname.bv_len--;
}
if (pndn.bv_val != base->e_nname.bv_val) {
op->o_tmpfree(pndn.bv_val, op->o_tmpmemctx);
op->o_tmpfree(pdn.bv_val, op->o_tmpmemctx);
}
}
/*
* if it's a referral, add it to the list of referrals. only do
* this for non-base searches, and don't check the filter
* explicitly here since it's only a candidate anyway.
*/
if ( !manageDSAit && op->oq_search.rs_scope != LDAP_SCOPE_BASE
&& is_entry_referral( e ) )
{
BerVarray erefs = get_entry_referrals( op, e );
rs->sr_ref = referral_rewrite( erefs, &e->e_name, NULL,
op->oq_search.rs_scope == LDAP_SCOPE_ONELEVEL
? LDAP_SCOPE_BASE : LDAP_SCOPE_SUBTREE );
rs->sr_entry = e;
rs->sr_flags = 0;
send_search_reference( op, rs );
if (e != base)
mdb_entry_return( op, e );
rs->sr_entry = NULL;
e = NULL;
ber_bvarray_free( rs->sr_ref );
ber_bvarray_free( erefs );
rs->sr_ref = NULL;
if ( wwctx.flag ) {
rs->sr_err = mdb_waitfixup( op, &wwctx, mci, mcd );
if ( rs->sr_err ) {
send_ldap_result( op, rs );
goto done;
}
}
goto loop_continue;
}
/* if it matches the filter and scope, send it */
rs->sr_err = test_filter( op, e, op->oq_search.rs_filter );
if ( rs->sr_err == LDAP_COMPARE_TRUE ) {
/* check size limit */
if ( get_pagedresults(op) > SLAP_CONTROL_IGNORED ) {
if ( rs->sr_nentries >= ((PagedResultsState *)op->o_pagedresults_state)->ps_size ) {
mdb_entry_return( op, e );
e = NULL;
send_paged_response( op, rs, &lastid, tentries );
goto done;
}
lastid = id;
}
if (e) {
/* safe default */
rs->sr_attrs = op->oq_search.rs_attrs;
rs->sr_operational_attrs = NULL;
rs->sr_ctrls = NULL;
rs->sr_entry = e;
RS_ASSERT( e->e_private != NULL );
rs->sr_flags = 0;
rs->sr_err = LDAP_SUCCESS;
rs->sr_err = send_search_entry( op, rs );
rs->sr_attrs = NULL;
rs->sr_entry = NULL;
if (e != base)
mdb_entry_return( op, e );
e = NULL;
switch ( rs->sr_err ) {
case LDAP_SUCCESS: /* entry sent ok */
break;
default: /* entry not sent */
break;
case LDAP_BUSY:
send_ldap_result( op, rs );
goto done;
case LDAP_UNAVAILABLE:
case LDAP_SIZELIMIT_EXCEEDED:
if ( rs->sr_err == LDAP_SIZELIMIT_EXCEEDED ) {
rs->sr_ref = rs->sr_v2ref;
send_ldap_result( op, rs );
rs->sr_err = LDAP_SUCCESS;
} else {
rs->sr_err = LDAP_OTHER;
}
goto done;
}
if ( wwctx.flag ) {
rs->sr_err = mdb_waitfixup( op, &wwctx, mci, mcd );
if ( rs->sr_err ) {
send_ldap_result( op, rs );
goto done;
}
}
}
} else {
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(mdb_search)
": %ld does not match filter\n",
(long) id, 0, 0 );
}
loop_continue:
if( e != NULL ) {
if ( e != base )
mdb_entry_return( op, e );
RS_ASSERT( rs->sr_entry == NULL );
e = NULL;
rs->sr_entry = NULL;
}
if ( nsubs < ncand ) {
int rc = mdb_dn2id_walk( op, &isc );
if (rc) {
id = NOID;
/* We got to the end of a subtree. If there are any
* alias scopes left, search them too.
*/
while (iscopes[0] && cscope < iscopes[0]) {
cscope++;
isc.id = iscopes[cscope];
if ( base )
mdb_entry_return( op, base );
rs->sr_err = mdb_id2entry(op, mci, isc.id, &base);
if ( !rs->sr_err ) {
mdb_id2name( op, ltid, &isc.mc, isc.id, &base->e_name, &base->e_nname );
isc.numrdns = 0;
if (isc.oscope == LDAP_SCOPE_ONELEVEL)
isc.oscope = LDAP_SCOPE_BASE;
rc = mdb_dn2id_walk( op, &isc );
if ( !rc ) {
id = isc.id;
break;
}
}
}
} else
id = isc.id;
} else {
id = mdb_idl_next( candidates, &cursor );
}
}
nochange:
rs->sr_ctrls = NULL;
rs->sr_ref = rs->sr_v2ref;
rs->sr_err = (rs->sr_v2ref == NULL) ? LDAP_SUCCESS : LDAP_REFERRAL;
rs->sr_rspoid = NULL;
if ( get_pagedresults(op) > SLAP_CONTROL_IGNORED ) {
send_paged_response( op, rs, NULL, 0 );
} else {
send_ldap_result( op, rs );
}
rs->sr_err = LDAP_SUCCESS;
done:
if ( cb.sc_private ) {
/* remove our writewait callback */
slap_callback **scp = &op->o_callback;
while ( *scp ) {
if ( *scp == &cb ) {
*scp = cb.sc_next;
cb.sc_private = NULL;
break;
}
}
}
mdb_cursor_close( mcd );
mdb_cursor_close( mci );
if ( moi == &opinfo ) {
mdb_txn_reset( moi->moi_txn );
LDAP_SLIST_REMOVE( &op->o_extra, &moi->moi_oe, OpExtra, oe_next );
} else {
moi->moi_ref--;
}
if( rs->sr_v2ref ) {
ber_bvarray_free( rs->sr_v2ref );
rs->sr_v2ref = NULL;
}
if (base)
mdb_entry_return( op, base );
scope_chunk_ret( op, scopes );
return rs->sr_err;
}
/*
* idl_intersection - return a = a intersection b
*/
int
mdb_idl_intersection(
ID *a,
ID *b )
{
ID ida, idb;
ID idmax, idmin;
ID cursora = 0, cursorb = 0, cursorc;
int swap = 0;
if ( MDB_IDL_IS_ZERO( a ) || MDB_IDL_IS_ZERO( b ) ) {
a[0] = 0;
return 0;
}
idmin = IDL_MAX( MDB_IDL_FIRST(a), MDB_IDL_FIRST(b) );
idmax = IDL_MIN( MDB_IDL_LAST(a), MDB_IDL_LAST(b) );
if ( idmin > idmax ) {
a[0] = 0;
return 0;
} else if ( idmin == idmax ) {
a[0] = 1;
a[1] = idmin;
return 0;
}
if ( MDB_IDL_IS_RANGE( a ) ) {
if ( MDB_IDL_IS_RANGE(b) ) {
/* If both are ranges, just shrink the boundaries */
a[1] = idmin;
a[2] = idmax;
return 0;
} else {
/* Else swap so that b is the range, a is a list */
ID *tmp = a;
a = b;
b = tmp;
swap = 1;
}
}
/* If a range completely covers the list, the result is
* just the list. If idmin to idmax is contiguous, just
* turn it into a range.
*/
if ( MDB_IDL_IS_RANGE( b )
&& MDB_IDL_RANGE_FIRST( b ) <= MDB_IDL_RANGE_FIRST( a )
&& MDB_IDL_RANGE_LAST( b ) >= MDB_IDL_RANGE_LAST( a ) ) {
if (idmax - idmin + 1 == a[0])
{
a[0] = NOID;
a[1] = idmin;
a[2] = idmax;
}
goto done;
}
/* Fine, do the intersection one element at a time.
* First advance to idmin in both IDLs.
*/
cursora = cursorb = idmin;
ida = mdb_idl_first( a, &cursora );
idb = mdb_idl_first( b, &cursorb );
cursorc = 0;
while( ida <= idmax || idb <= idmax ) {
if( ida == idb ) {
a[++cursorc] = ida;
ida = mdb_idl_next( a, &cursora );
idb = mdb_idl_next( b, &cursorb );
} else if ( ida < idb ) {
ida = mdb_idl_next( a, &cursora );
} else {
idb = mdb_idl_next( b, &cursorb );
}
}
a[0] = cursorc;
done:
if (swap)
MDB_IDL_CPY( b, a );
return 0;
}