static int
parse_paged_cookie( Operation *op, SlapReply *rs )
{
int rc = LDAP_SUCCESS;
PagedResultsState *ps = op->o_pagedresults_state;
/* this function must be invoked only if the pagedResults
* control has been detected, parsed and partially checked
* by the frontend */
assert( get_pagedresults( op ) > SLAP_CONTROL_IGNORED );
/* cookie decoding/checks deferred to backend... */
if ( ps->ps_cookieval.bv_len ) {
PagedResultsCookie reqcookie;
if( ps->ps_cookieval.bv_len != sizeof( reqcookie ) ) {
/* bad cookie */
rs->sr_text = "paged results cookie is invalid";
rc = LDAP_PROTOCOL_ERROR;
goto done;
}
AC_MEMCPY( &reqcookie, ps->ps_cookieval.bv_val, sizeof( reqcookie ));
if ( reqcookie > ps->ps_cookie ) {
/* bad cookie */
rs->sr_text = "paged results cookie is invalid";
rc = LDAP_PROTOCOL_ERROR;
goto done;
} else if ( reqcookie < ps->ps_cookie ) {
rs->sr_text = "paged results cookie is invalid or old";
rc = LDAP_UNWILLING_TO_PERFORM;
goto done;
}
} else {
/* we're going to use ps_cookie */
op->o_conn->c_pagedresults_state.ps_cookie = 0;
}
done:;
return rc;
}
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;
}
int
limits_check( Operation *op, SlapReply *rs )
{
assert( op != NULL );
assert( rs != NULL );
/* FIXME: should this be always true? */
assert( op->o_tag == LDAP_REQ_SEARCH);
/* protocol only allows 0..maxInt;
*
* internal searches:
* - may use SLAP_NO_LIMIT ( = -1 ) to indicate no limits;
* - should use slimit = N and tlimit = SLAP_NO_LIMIT to
* indicate searches that should return exactly N matches,
* and handle errors thru a callback (see for instance
* slap_sasl_match() and slap_sasl2dn())
*/
if ( op->ors_tlimit == SLAP_NO_LIMIT && op->ors_slimit == SLAP_NO_LIMIT ) {
return 0;
}
/* allow root to set no limit */
if ( be_isroot( op ) ) {
op->ors_limit = NULL;
if ( op->ors_tlimit == 0 ) {
op->ors_tlimit = SLAP_NO_LIMIT;
}
if ( op->ors_slimit == 0 ) {
op->ors_slimit = SLAP_NO_LIMIT;
}
/* if paged results and slimit are requested */
if ( get_pagedresults( op ) > SLAP_CONTROL_IGNORED &&
op->ors_slimit != SLAP_NO_LIMIT ) {
PagedResultsState *ps = op->o_pagedresults_state;
int total = op->ors_slimit - ps->ps_count;
if ( total > 0 ) {
op->ors_slimit = total;
} else {
op->ors_slimit = 0;
}
}
/* if not root, get appropriate limits */
} else {
( void ) limits_get( op, &op->ors_limit );
assert( op->ors_limit != NULL );
/* if no limit is required, use soft limit */
if ( op->ors_tlimit == 0 ) {
op->ors_tlimit = op->ors_limit->lms_t_soft;
/* limit required: check if legal */
} else {
if ( op->ors_limit->lms_t_hard == 0 ) {
if ( op->ors_limit->lms_t_soft > 0
&& ( op->ors_tlimit > op->ors_limit->lms_t_soft ) ) {
op->ors_tlimit = op->ors_limit->lms_t_soft;
}
} else if ( op->ors_limit->lms_t_hard > 0 ) {
#ifdef ABOVE_HARD_LIMIT_IS_ERROR
if ( op->ors_tlimit == SLAP_MAX_LIMIT ) {
op->ors_tlimit = op->ors_limit->lms_t_hard;
} else if ( op->ors_tlimit > op->ors_limit->lms_t_hard ) {
/* error if exceeding hard limit */
rs->sr_err = LDAP_ADMINLIMIT_EXCEEDED;
send_ldap_result( op, rs );
rs->sr_err = LDAP_SUCCESS;
return -1;
}
#else /* ! ABOVE_HARD_LIMIT_IS_ERROR */
if ( op->ors_tlimit > op->ors_limit->lms_t_hard ) {
op->ors_tlimit = op->ors_limit->lms_t_hard;
}
#endif /* ! ABOVE_HARD_LIMIT_IS_ERROR */
}
}
/* else leave as is */
/* don't even get to backend if candidate check is disabled */
if ( op->ors_limit->lms_s_unchecked == 0 ) {
rs->sr_err = LDAP_ADMINLIMIT_EXCEEDED;
send_ldap_result( op, rs );
rs->sr_err = LDAP_SUCCESS;
return -1;
}
/* if paged results is requested */
if ( get_pagedresults( op ) > SLAP_CONTROL_IGNORED ) {
int slimit = -2;
int pr_total;
PagedResultsState *ps = op->o_pagedresults_state;
/* paged results is not allowed */
if ( op->ors_limit->lms_s_pr_total == -2 ) {
rs->sr_err = LDAP_ADMINLIMIT_EXCEEDED;
rs->sr_text = "pagedResults control not allowed";
send_ldap_result( op, rs );
rs->sr_err = LDAP_SUCCESS;
rs->sr_text = NULL;
return -1;
}
if ( op->ors_limit->lms_s_pr > 0
&& ps->ps_size > op->ors_limit->lms_s_pr )
{
rs->sr_err = LDAP_ADMINLIMIT_EXCEEDED;
rs->sr_text = "illegal pagedResults page size";
send_ldap_result( op, rs );
rs->sr_err = LDAP_SUCCESS;
rs->sr_text = NULL;
return -1;
}
if ( op->ors_limit->lms_s_pr_total == 0 ) {
if ( op->ors_limit->lms_s_hard == 0 ) {
pr_total = op->ors_limit->lms_s_soft;
} else {
pr_total = op->ors_limit->lms_s_hard;
}
} else {
pr_total = op->ors_limit->lms_s_pr_total;
}
if ( pr_total == -1 ) {
if ( op->ors_slimit == 0 || op->ors_slimit == SLAP_MAX_LIMIT ) {
slimit = -1;
} else {
slimit = op->ors_slimit - ps->ps_count;
}
#ifdef ABOVE_HARD_LIMIT_IS_ERROR
} else if ( pr_total > 0 && op->ors_slimit != SLAP_MAX_LIMIT
&& ( op->ors_slimit == SLAP_NO_LIMIT
|| op->ors_slimit > pr_total ) )
{
rs->sr_err = LDAP_ADMINLIMIT_EXCEEDED;
send_ldap_result( op, rs );
rs->sr_err = LDAP_SUCCESS;
return -1;
#endif /* ! ABOVE_HARD_LIMIT_IS_ERROR */
} else {
/* if no limit is required, use soft limit */
int total;
int slimit2;
/* first round of pagedResults:
* set count to any appropriate limit */
/* if the limit is set, check that it does
* not violate any server-side limit */
#ifdef ABOVE_HARD_LIMIT_IS_ERROR
if ( op->ors_slimit == SLAP_MAX_LIMIT )
#else /* ! ABOVE_HARD_LIMIT_IS_ERROR */
if ( op->ors_slimit == SLAP_MAX_LIMIT
|| op->ors_slimit > pr_total )
#endif /* ! ABOVE_HARD_LIMIT_IS_ERROR */
{
slimit2 = op->ors_slimit = pr_total;
} else if ( op->ors_slimit == 0 ) {
slimit2 = pr_total;
} else {
slimit2 = op->ors_slimit;
}
total = slimit2 - ps->ps_count;
if ( total >= 0 ) {
if ( op->ors_limit->lms_s_pr > 0 ) {
/* use the smallest limit set by total/per page */
if ( total < op->ors_limit->lms_s_pr ) {
slimit = total;
} else {
/* use the perpage limit if any
* NOTE: + 1 because given value must be legal */
slimit = op->ors_limit->lms_s_pr + 1;
}
} else {
/* use the total limit if any */
slimit = total;
}
} else if ( op->ors_limit->lms_s_pr > 0 ) {
/* use the perpage limit if any
* NOTE: + 1 because the given value must be legal */
slimit = op->ors_limit->lms_s_pr + 1;
} else {
/* use the standard hard/soft limit if any */
slimit = op->ors_limit->lms_s_hard;
}
}
/* if got any limit, use it */
if ( slimit != -2 ) {
if ( op->ors_slimit == 0 ) {
op->ors_slimit = slimit;
} else if ( slimit > 0 ) {
if ( op->ors_slimit - ps->ps_count > slimit ) {
rs->sr_err = LDAP_ADMINLIMIT_EXCEEDED;
send_ldap_result( op, rs );
rs->sr_err = LDAP_SUCCESS;
return -1;
}
op->ors_slimit = slimit;
} else if ( slimit == 0 ) {
op->ors_slimit = 0;
}
} else {
/* use the standard hard/soft limit if any */
op->ors_slimit = pr_total;
}
/* no limit requested: use soft, whatever it is */
} else if ( op->ors_slimit == 0 ) {
op->ors_slimit = op->ors_limit->lms_s_soft;
/* limit requested: check if legal */
} else {
/* hard limit as soft (traditional behavior) */
if ( op->ors_limit->lms_s_hard == 0 ) {
if ( op->ors_limit->lms_s_soft > 0
&& op->ors_slimit > op->ors_limit->lms_s_soft ) {
op->ors_slimit = op->ors_limit->lms_s_soft;
}
/* explicit hard limit: error if violated */
} else if ( op->ors_limit->lms_s_hard > 0 ) {
#ifdef ABOVE_HARD_LIMIT_IS_ERROR
if ( op->ors_slimit == SLAP_MAX_LIMIT ) {
op->ors_slimit = op->ors_limit->lms_s_hard;
} else if ( op->ors_slimit > op->ors_limit->lms_s_hard ) {
/* if limit exceeds hard, error */
rs->sr_err = LDAP_ADMINLIMIT_EXCEEDED;
send_ldap_result( op, rs );
rs->sr_err = LDAP_SUCCESS;
return -1;
}
#else /* ! ABOVE_HARD_LIMIT_IS_ERROR */
if ( op->ors_slimit > op->ors_limit->lms_s_hard ) {
op->ors_slimit = op->ors_limit->lms_s_hard;
}
#endif /* ! ABOVE_HARD_LIMIT_IS_ERROR */
}
}
/* else leave as is */
}
return 0;
}
static int
null_back_respond( Operation *op, SlapReply *rs, int rc )
{
LDAPControl ctrl[SLAP_MAX_RESPONSE_CONTROLS], *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
int c = 0;
BerElementBuffer ps_berbuf;
BerElement *ps_ber = NULL;
LDAPControl **preread_ctrl = NULL,
**postread_ctrl = NULL;
rs->sr_err = LDAP_OTHER;
/* this comes first, as in case of assertion failure
* any further processing must stop */
if ( get_assert( op ) ) {
rs->sr_err = LDAP_ASSERTION_FAILED;
goto respond;
}
if ( op->o_preread ) {
Entry e = { 0 };
switch ( op->o_tag ) {
case LDAP_REQ_MODIFY:
case LDAP_REQ_RENAME:
case LDAP_REQ_DELETE:
e.e_name = op->o_req_dn;
e.e_nname = op->o_req_ndn;
preread_ctrl = &ctrls[c];
*preread_ctrl = NULL;
if ( slap_read_controls( op, rs, &e,
&slap_pre_read_bv, preread_ctrl ) )
{
preread_ctrl = NULL;
Debug( LDAP_DEBUG_TRACE,
"<=- null_back_respond: pre-read "
"failed!\n", 0, 0, 0 );
if ( op->o_preread & SLAP_CONTROL_CRITICAL ) {
/* FIXME: is it correct to abort
* operation if control fails? */
goto respond;
}
} else {
c++;
}
break;
}
}
if ( op->o_postread ) {
Entry e = { 0 };
switch ( op->o_tag ) {
case LDAP_REQ_ADD:
case LDAP_REQ_MODIFY:
case LDAP_REQ_RENAME:
if ( op->o_tag == LDAP_REQ_ADD ) {
e.e_name = op->ora_e->e_name;
e.e_nname = op->ora_e->e_nname;
} else {
e.e_name = op->o_req_dn;
e.e_nname = op->o_req_ndn;
}
postread_ctrl = &ctrls[c];
*postread_ctrl = NULL;
if ( slap_read_controls( op, rs, &e,
&slap_post_read_bv, postread_ctrl ) )
{
postread_ctrl = NULL;
Debug( LDAP_DEBUG_TRACE,
"<=- null_back_respond: post-read "
"failed!\n", 0, 0, 0 );
if ( op->o_postread & SLAP_CONTROL_CRITICAL ) {
/* FIXME: is it correct to abort
* operation if control fails? */
goto respond;
}
} else {
c++;
}
break;
}
}
if ( op->o_noop ) {
switch ( op->o_tag ) {
case LDAP_REQ_ADD:
case LDAP_REQ_MODIFY:
case LDAP_REQ_RENAME:
case LDAP_REQ_DELETE:
case LDAP_REQ_EXTENDED:
rc = LDAP_X_NO_OPERATION;
break;
}
}
if ( get_pagedresults( op ) > SLAP_CONTROL_IGNORED ) {
struct berval cookie = BER_BVC( "" );
/* should not be here... */
assert( op->o_tag == LDAP_REQ_SEARCH );
ctrl[c].ldctl_oid = LDAP_CONTROL_PAGEDRESULTS;
ctrl[c].ldctl_iscritical = 0;
ps_ber = (BerElement *)&ps_berbuf;
ber_init2( ps_ber, NULL, LBER_USE_DER );
/* return size of 0 -- no estimate */
ber_printf( ps_ber, "{iO}", 0, &cookie );
if ( ber_flatten2( ps_ber, &ctrl[c].ldctl_value, 0 ) == -1 ) {
goto done;
}
ctrls[c] = &ctrl[c];
c++;
}
/* terminate controls array */
ctrls[c] = NULL;
rs->sr_ctrls = ctrls;
rs->sr_err = rc;
respond:;
send_ldap_result( op, rs );
rs->sr_ctrls = NULL;
done:;
if ( ps_ber != NULL ) {
(void) ber_free_buf( ps_ber );
}
if( preread_ctrl != NULL && (*preread_ctrl) != NULL ) {
slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
}
if( postread_ctrl != NULL && (*postread_ctrl) != NULL ) {
slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
slap_sl_free( *postread_ctrl, op->o_tmpmemctx );
}
return rs->sr_err;
}