int
bdb_dn2idl(
Operation *op,
DB_TXN *txn,
struct berval *ndn,
EntryInfo *ei,
ID *ids,
ID *stack )
{
int rc;
DBT key;
struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
DB *db = bdb->bi_dn2id->bdi_db;
int prefix = ( op->ors_scope == LDAP_SCOPE_ONELEVEL )
? DN_ONE_PREFIX : DN_SUBTREE_PREFIX;
Debug( LDAP_DEBUG_TRACE, "=> bdb_dn2idl(\"%s\")\n",
ndn->bv_val, 0, 0 );
#ifndef BDB_MULTIPLE_SUFFIXES
if ( prefix == DN_SUBTREE_PREFIX
&& ( ei->bei_id == 0 ||
( ei->bei_parent->bei_id == 0 && op->o_bd->be_suffix[0].bv_len ))) {
BDB_IDL_ALL(bdb, ids);
return 0;
}
#endif
DBTzero( &key );
key.size = ndn->bv_len + 2;
key.ulen = key.size;
key.flags = DB_DBT_USERMEM;
key.data = op->o_tmpalloc( key.size, op->o_tmpmemctx );
((char *)key.data)[0] = prefix;
AC_MEMCPY( &((char *)key.data)[1], ndn->bv_val, key.size - 1 );
BDB_IDL_ZERO( ids );
rc = bdb_idl_fetch_key( op->o_bd, db, txn, &key, ids, NULL, 0 );
if( rc != 0 ) {
Debug( LDAP_DEBUG_TRACE,
"<= bdb_dn2idl: get failed: %s (%d)\n",
db_strerror( rc ), rc, 0 );
} else {
Debug( LDAP_DEBUG_TRACE,
"<= bdb_dn2idl: id=%ld first=%ld last=%ld\n",
(long) ids[0],
(long) BDB_IDL_FIRST( ids ), (long) BDB_IDL_LAST( ids ) );
}
op->o_tmpfree( key.data, op->o_tmpmemctx );
return rc;
}
static int
hdb_dn2idl_internal(
struct dn2id_cookie *cx
)
{
BDB_IDL_ZERO( cx->tmp );
if ( cx->bdb->bi_idl_cache_size ) {
char *ptr = ((char *)&cx->id)-1;
cx->key.data = ptr;
cx->key.size = sizeof(ID)+1;
if ( cx->prefix == DN_SUBTREE_PREFIX ) {
ID *ids = cx->depth ? cx->tmp : cx->ids;
*ptr = cx->prefix;
cx->rc = bdb_idl_cache_get(cx->bdb, cx->db, &cx->key, ids);
if ( cx->rc == LDAP_SUCCESS ) {
if ( cx->depth ) {
bdb_idl_delete( cx->tmp, cx->id ); /* ITS#6983, drop our own ID */
bdb_idl_append( cx->ids, cx->tmp );
cx->need_sort = 1;
}
return cx->rc;
}
}
*ptr = DN_ONE_PREFIX;
cx->rc = bdb_idl_cache_get(cx->bdb, cx->db, &cx->key, cx->tmp);
if ( cx->rc == LDAP_SUCCESS ) {
goto gotit;
}
if ( cx->rc == DB_NOTFOUND ) {
return cx->rc;
}
}
bdb_cache_entryinfo_lock( cx->ei );
/* If number of kids in the cache differs from on-disk, load
* up all the kids from the database
*/
if ( cx->ei->bei_ckids+1 != cx->ei->bei_dkids ) {
EntryInfo ei;
db_recno_t dkids = cx->ei->bei_dkids;
ei.bei_parent = cx->ei;
/* Only one thread should load the cache */
while ( cx->ei->bei_state & CACHE_ENTRY_ONELEVEL ) {
bdb_cache_entryinfo_unlock( cx->ei );
ldap_pvt_thread_yield();
bdb_cache_entryinfo_lock( cx->ei );
if ( cx->ei->bei_ckids+1 == cx->ei->bei_dkids ) {
goto synced;
}
}
cx->ei->bei_state |= CACHE_ENTRY_ONELEVEL;
bdb_cache_entryinfo_unlock( cx->ei );
cx->rc = cx->db->cursor( cx->db, NULL, &cx->dbc,
cx->bdb->bi_db_opflags );
if ( cx->rc )
goto done_one;
cx->data.data = &cx->dbuf;
cx->data.ulen = sizeof(ID);
cx->data.dlen = sizeof(ID);
cx->data.flags = DB_DBT_USERMEM | DB_DBT_PARTIAL;
/* The first item holds the parent ID. Ignore it. */
cx->key.data = &cx->nid;
cx->key.size = sizeof(ID);
cx->rc = cx->dbc->c_get( cx->dbc, &cx->key, &cx->data, DB_SET );
if ( cx->rc ) {
cx->dbc->c_close( cx->dbc );
goto done_one;
}
/* If the on-disk count is zero we've never checked it.
* Count it now.
*/
if ( !dkids ) {
cx->dbc->c_count( cx->dbc, &dkids, 0 );
cx->ei->bei_dkids = dkids;
}
cx->data.data = cx->buf;
cx->data.ulen = BDB_IDL_UM_SIZE * sizeof(ID);
cx->data.flags = DB_DBT_USERMEM;
if ( dkids > 1 ) {
/* Fetch the rest of the IDs in a loop... */
while ( (cx->rc = cx->dbc->c_get( cx->dbc, &cx->key, &cx->data,
DB_MULTIPLE | DB_NEXT_DUP )) == 0 ) {
u_int8_t *j;
size_t len;
void *ptr;
DB_MULTIPLE_INIT( ptr, &cx->data );
while (ptr) {
DB_MULTIPLE_NEXT( ptr, &cx->data, j, len );
if (j) {
EntryInfo *ei2;
diskNode *d = (diskNode *)j;
short nrlen;
BDB_DISK2ID( j + len - sizeof(ID), &ei.bei_id );
nrlen = ((d->nrdnlen[0] ^ 0x80) << 8) | d->nrdnlen[1];
ei.bei_nrdn.bv_len = nrlen;
/* nrdn/rdn are set in-place.
* hdb_cache_load will copy them as needed
*/
ei.bei_nrdn.bv_val = d->nrdn;
ei.bei_rdn.bv_len = len - sizeof(diskNode)
- ei.bei_nrdn.bv_len;
ei.bei_rdn.bv_val = d->nrdn + ei.bei_nrdn.bv_len + 1;
bdb_idl_append_one( cx->tmp, ei.bei_id );
hdb_cache_load( cx->bdb, &ei, &ei2 );
}
}
}
}
cx->rc = cx->dbc->c_close( cx->dbc );
done_one:
bdb_cache_entryinfo_lock( cx->ei );
cx->ei->bei_state &= ~CACHE_ENTRY_ONELEVEL;
bdb_cache_entryinfo_unlock( cx->ei );
if ( cx->rc )
return cx->rc;
} else {
/* The in-memory cache is in sync with the on-disk data.
* do we have any kids?
*/
synced:
cx->rc = 0;
if ( cx->ei->bei_ckids > 0 ) {
/* Walk the kids tree; order is irrelevant since bdb_idl_sort
* will sort it later.
*/
avl_apply( cx->ei->bei_kids, apply_func,
cx->tmp, -1, AVL_POSTORDER );
}
bdb_cache_entryinfo_unlock( cx->ei );
}
if ( !BDB_IDL_IS_RANGE( cx->tmp ) && cx->tmp[0] > 3 )
bdb_idl_sort( cx->tmp, cx->buf );
if ( cx->bdb->bi_idl_cache_max_size && !BDB_IDL_IS_ZERO( cx->tmp )) {
char *ptr = ((char *)&cx->id)-1;
cx->key.data = ptr;
cx->key.size = sizeof(ID)+1;
*ptr = DN_ONE_PREFIX;
bdb_idl_cache_put( cx->bdb, cx->db, &cx->key, cx->tmp, cx->rc );
}
gotit:
if ( !BDB_IDL_IS_ZERO( cx->tmp )) {
if ( cx->prefix == DN_SUBTREE_PREFIX ) {
bdb_idl_append( cx->ids, cx->tmp );
cx->need_sort = 1;
if ( !(cx->ei->bei_state & CACHE_ENTRY_NO_GRANDKIDS)) {
ID *save, idcurs;
EntryInfo *ei = cx->ei;
int nokids = 1;
save = cx->op->o_tmpalloc( BDB_IDL_SIZEOF( cx->tmp ),
cx->op->o_tmpmemctx );
BDB_IDL_CPY( save, cx->tmp );
idcurs = 0;
cx->depth++;
for ( cx->id = bdb_idl_first( save, &idcurs );
cx->id != NOID;
cx->id = bdb_idl_next( save, &idcurs )) {
EntryInfo *ei2;
cx->ei = NULL;
if ( bdb_cache_find_id( cx->op, cx->txn, cx->id, &cx->ei,
ID_NOENTRY, NULL ))
continue;
if ( cx->ei ) {
ei2 = cx->ei;
if ( !( ei2->bei_state & CACHE_ENTRY_NO_KIDS )) {
BDB_ID2DISK( cx->id, &cx->nid );
hdb_dn2idl_internal( cx );
if ( !BDB_IDL_IS_ZERO( cx->tmp ))
nokids = 0;
}
bdb_cache_entryinfo_lock( ei2 );
ei2->bei_finders--;
bdb_cache_entryinfo_unlock( ei2 );
}
}
cx->depth--;
cx->op->o_tmpfree( save, cx->op->o_tmpmemctx );
if ( nokids ) {
bdb_cache_entryinfo_lock( ei );
ei->bei_state |= CACHE_ENTRY_NO_GRANDKIDS;
bdb_cache_entryinfo_unlock( ei );
}
}
/* Make sure caller knows it had kids! */
cx->tmp[0]=1;
cx->rc = 0;
} else {
BDB_IDL_CPY( cx->ids, cx->tmp );
}
}
return cx->rc;
}
int
bdb_filter_candidates(
Operation *op,
DB_TXN *rtxn,
Filter *f,
ID *ids,
ID *tmp,
ID *stack )
{
int rc = 0;
#ifdef LDAP_COMP_MATCH
AttributeAliasing *aa;
#endif
Debug( LDAP_DEBUG_FILTER, "=> bdb_filter_candidates\n", 0, 0, 0 );
if ( f->f_choice & SLAPD_FILTER_UNDEFINED ) {
BDB_IDL_ZERO( ids );
goto out;
}
switch ( f->f_choice ) {
case SLAPD_FILTER_COMPUTED:
switch( f->f_result ) {
case SLAPD_COMPARE_UNDEFINED:
/* This technically is not the same as FALSE, but it
* certainly will produce no matches.
*/
/* FALL THRU */
case LDAP_COMPARE_FALSE:
BDB_IDL_ZERO( ids );
break;
case LDAP_COMPARE_TRUE: {
struct bdb_info *bdb = (struct bdb_info *)op->o_bd->be_private;
BDB_IDL_ALL( bdb, ids );
} break;
case LDAP_SUCCESS:
/* this is a pre-computed scope, leave it alone */
break;
}
break;
case LDAP_FILTER_PRESENT:
Debug( LDAP_DEBUG_FILTER, "\tPRESENT\n", 0, 0, 0 );
rc = presence_candidates( op, rtxn, f->f_desc, ids );
break;
case LDAP_FILTER_EQUALITY:
Debug( LDAP_DEBUG_FILTER, "\tEQUALITY\n", 0, 0, 0 );
#ifdef LDAP_COMP_MATCH
if ( is_aliased_attribute && ( aa = is_aliased_attribute ( f->f_ava->aa_desc ) ) ) {
rc = ava_comp_candidates ( op, rtxn, f->f_ava, aa, ids, tmp, stack );
}
else
#endif
{
rc = equality_candidates( op, rtxn, f->f_ava, ids, tmp );
}
break;
case LDAP_FILTER_APPROX:
Debug( LDAP_DEBUG_FILTER, "\tAPPROX\n", 0, 0, 0 );
rc = approx_candidates( op, rtxn, f->f_ava, ids, tmp );
break;
case LDAP_FILTER_SUBSTRINGS:
Debug( LDAP_DEBUG_FILTER, "\tSUBSTRINGS\n", 0, 0, 0 );
rc = substring_candidates( op, rtxn, f->f_sub, ids, tmp );
break;
case LDAP_FILTER_GE:
/* if no GE index, use pres */
Debug( LDAP_DEBUG_FILTER, "\tGE\n", 0, 0, 0 );
if( f->f_ava->aa_desc->ad_type->sat_ordering &&
( f->f_ava->aa_desc->ad_type->sat_ordering->smr_usage & SLAP_MR_ORDERED_INDEX ) )
rc = inequality_candidates( op, rtxn, f->f_ava, ids, tmp, LDAP_FILTER_GE );
else
rc = presence_candidates( op, rtxn, f->f_ava->aa_desc, ids );
break;
case LDAP_FILTER_LE:
/* if no LE index, use pres */
Debug( LDAP_DEBUG_FILTER, "\tLE\n", 0, 0, 0 );
if( f->f_ava->aa_desc->ad_type->sat_ordering &&
( f->f_ava->aa_desc->ad_type->sat_ordering->smr_usage & SLAP_MR_ORDERED_INDEX ) )
rc = inequality_candidates( op, rtxn, f->f_ava, ids, tmp, LDAP_FILTER_LE );
else
rc = presence_candidates( op, rtxn, f->f_ava->aa_desc, ids );
break;
case LDAP_FILTER_NOT:
/* no indexing to support NOT filters */
Debug( LDAP_DEBUG_FILTER, "\tNOT\n", 0, 0, 0 );
{ struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
BDB_IDL_ALL( bdb, ids );
}
break;
case LDAP_FILTER_AND:
Debug( LDAP_DEBUG_FILTER, "\tAND\n", 0, 0, 0 );
rc = list_candidates( op, rtxn,
f->f_and, LDAP_FILTER_AND, ids, tmp, stack );
break;
case LDAP_FILTER_OR:
Debug( LDAP_DEBUG_FILTER, "\tOR\n", 0, 0, 0 );
rc = list_candidates( op, rtxn,
f->f_or, LDAP_FILTER_OR, ids, tmp, stack );
break;
case LDAP_FILTER_EXT:
Debug( LDAP_DEBUG_FILTER, "\tEXT\n", 0, 0, 0 );
rc = ext_candidates( op, rtxn, f->f_mra, ids, tmp, stack );
break;
default:
Debug( LDAP_DEBUG_FILTER, "\tUNKNOWN %lu\n",
(unsigned long) f->f_choice, 0, 0 );
/* Must not return NULL, otherwise extended filters break */
{ struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
BDB_IDL_ALL( bdb, ids );
}
}
out:
Debug( LDAP_DEBUG_FILTER,
"<= bdb_filter_candidates: id=%ld first=%ld last=%ld\n",
(long) ids[0],
(long) BDB_IDL_FIRST( ids ),
(long) BDB_IDL_LAST( ids ) );
return rc;
}
int
hdb_dn2idl(
Operation *op,
DB_TXN *txn,
struct berval *ndn,
EntryInfo *ei,
ID *ids,
ID *stack )
{
struct bdb_info *bdb = (struct bdb_info *)op->o_bd->be_private;
struct dn2id_cookie cx;
Debug( LDAP_DEBUG_TRACE, "=> hdb_dn2idl(\"%s\")\n",
ndn->bv_val, 0, 0 );
#ifndef BDB_MULTIPLE_SUFFIXES
if ( op->ors_scope != LDAP_SCOPE_ONELEVEL &&
( ei->bei_id == 0 ||
( ei->bei_parent->bei_id == 0 && op->o_bd->be_suffix[0].bv_len )))
{
BDB_IDL_ALL( bdb, ids );
return 0;
}
#endif
cx.id = ei->bei_id;
BDB_ID2DISK( cx.id, &cx.nid );
cx.ei = ei;
cx.bdb = bdb;
cx.db = cx.bdb->bi_dn2id->bdi_db;
cx.prefix = (op->ors_scope == LDAP_SCOPE_ONELEVEL) ?
DN_ONE_PREFIX : DN_SUBTREE_PREFIX;
cx.ids = ids;
cx.tmp = stack;
cx.buf = stack + BDB_IDL_UM_SIZE;
cx.op = op;
cx.txn = txn;
cx.need_sort = 0;
cx.depth = 0;
if ( cx.prefix == DN_SUBTREE_PREFIX ) {
ids[0] = 1;
ids[1] = cx.id;
} else {
BDB_IDL_ZERO( ids );
}
if ( cx.ei->bei_state & CACHE_ENTRY_NO_KIDS )
return LDAP_SUCCESS;
DBTzero(&cx.key);
cx.key.ulen = sizeof(ID);
cx.key.size = sizeof(ID);
cx.key.flags = DB_DBT_USERMEM;
DBTzero(&cx.data);
hdb_dn2idl_internal(&cx);
if ( cx.need_sort ) {
char *ptr = ((char *)&cx.id)-1;
if ( !BDB_IDL_IS_RANGE( cx.ids ) && cx.ids[0] > 3 )
bdb_idl_sort( cx.ids, cx.tmp );
cx.key.data = ptr;
cx.key.size = sizeof(ID)+1;
*ptr = cx.prefix;
cx.id = ei->bei_id;
if ( cx.bdb->bi_idl_cache_max_size )
bdb_idl_cache_put( cx.bdb, cx.db, &cx.key, cx.ids, cx.rc );
}
if ( cx.rc == DB_NOTFOUND )
cx.rc = LDAP_SUCCESS;
return cx.rc;
}
static int
equality_candidates(
Operation *op,
DB_TXN *rtxn,
AttributeAssertion *ava,
ID *ids,
ID *tmp )
{
struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
DB *db;
int i;
int rc;
slap_mask_t mask;
struct berval prefix = {0, NULL};
struct berval *keys = NULL;
MatchingRule *mr;
Debug( LDAP_DEBUG_TRACE, "=> bdb_equality_candidates (%s)\n",
ava->aa_desc->ad_cname.bv_val, 0, 0 );
if ( ava->aa_desc == slap_schema.si_ad_entryDN ) {
EntryInfo *ei = NULL;
rc = bdb_cache_find_ndn( op, rtxn, &ava->aa_value, &ei );
if ( rc == LDAP_SUCCESS ) {
/* exactly one ID can match */
ids[0] = 1;
ids[1] = ei->bei_id;
}
if ( ei ) {
bdb_cache_entryinfo_unlock( ei );
}
return rc;
}
BDB_IDL_ALL( bdb, ids );
rc = bdb_index_param( op->o_bd, ava->aa_desc, LDAP_FILTER_EQUALITY,
&db, &mask, &prefix );
if ( rc == LDAP_INAPPROPRIATE_MATCHING ) {
Debug( LDAP_DEBUG_ANY,
"<= bdb_equality_candidates: (%s) not indexed\n",
ava->aa_desc->ad_cname.bv_val, 0, 0 );
return 0;
}
if( rc != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_ANY,
"<= bdb_equality_candidates: (%s) "
"index_param failed (%d)\n",
ava->aa_desc->ad_cname.bv_val, rc, 0 );
return 0;
}
mr = ava->aa_desc->ad_type->sat_equality;
if( !mr ) {
return 0;
}
if( !mr->smr_filter ) {
return 0;
}
rc = (mr->smr_filter)(
LDAP_FILTER_EQUALITY,
mask,
ava->aa_desc->ad_type->sat_syntax,
mr,
&prefix,
&ava->aa_value,
&keys, op->o_tmpmemctx );
if( rc != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_TRACE,
"<= bdb_equality_candidates: (%s, %s) "
"MR filter failed (%d)\n",
prefix.bv_val, ava->aa_desc->ad_cname.bv_val, rc );
return 0;
}
if( keys == NULL ) {
Debug( LDAP_DEBUG_TRACE,
"<= bdb_equality_candidates: (%s) no keys\n",
ava->aa_desc->ad_cname.bv_val, 0, 0 );
return 0;
}
for ( i= 0; keys[i].bv_val != NULL; i++ ) {
rc = bdb_key_read( op->o_bd, db, rtxn, &keys[i], tmp, NULL, 0 );
if( rc == DB_NOTFOUND ) {
BDB_IDL_ZERO( ids );
rc = 0;
break;
} else if( rc != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_TRACE,
"<= bdb_equality_candidates: (%s) "
"key read failed (%d)\n",
ava->aa_desc->ad_cname.bv_val, rc, 0 );
break;
}
if( BDB_IDL_IS_ZERO( tmp ) ) {
Debug( LDAP_DEBUG_TRACE,
"<= bdb_equality_candidates: (%s) NULL\n",
ava->aa_desc->ad_cname.bv_val, 0, 0 );
BDB_IDL_ZERO( ids );
break;
}
if ( i == 0 ) {
BDB_IDL_CPY( ids, tmp );
} else {
bdb_idl_intersection( ids, tmp );
}
if( BDB_IDL_IS_ZERO( ids ) )
break;
}
ber_bvarray_free_x( keys, op->o_tmpmemctx );
Debug( LDAP_DEBUG_TRACE,
"<= bdb_equality_candidates: id=%ld, first=%ld, last=%ld\n",
(long) ids[0],
(long) BDB_IDL_FIRST(ids),
(long) BDB_IDL_LAST(ids) );
return( rc );
}
static int
substring_candidates(
Operation *op,
DB_TXN *rtxn,
SubstringsAssertion *sub,
ID *ids,
ID *tmp )
{
struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
DB *db;
int i;
int rc;
slap_mask_t mask;
struct berval prefix = {0, NULL};
struct berval *keys = NULL;
MatchingRule *mr;
Debug( LDAP_DEBUG_TRACE, "=> bdb_substring_candidates (%s)\n",
sub->sa_desc->ad_cname.bv_val, 0, 0 );
BDB_IDL_ALL( bdb, ids );
rc = bdb_index_param( op->o_bd, sub->sa_desc, LDAP_FILTER_SUBSTRINGS,
&db, &mask, &prefix );
if ( rc == LDAP_INAPPROPRIATE_MATCHING ) {
Debug( LDAP_DEBUG_ANY,
"<= bdb_substring_candidates: (%s) not indexed\n",
sub->sa_desc->ad_cname.bv_val, 0, 0 );
return 0;
}
if( rc != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_ANY,
"<= bdb_substring_candidates: (%s) "
"index_param failed (%d)\n",
sub->sa_desc->ad_cname.bv_val, rc, 0 );
return 0;
}
mr = sub->sa_desc->ad_type->sat_substr;
if( !mr ) {
return 0;
}
if( !mr->smr_filter ) {
return 0;
}
rc = (mr->smr_filter)(
LDAP_FILTER_SUBSTRINGS,
mask,
sub->sa_desc->ad_type->sat_syntax,
mr,
&prefix,
sub,
&keys, op->o_tmpmemctx );
if( rc != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_TRACE,
"<= bdb_substring_candidates: (%s) "
"MR filter failed (%d)\n",
sub->sa_desc->ad_cname.bv_val, rc, 0 );
return 0;
}
if( keys == NULL ) {
Debug( LDAP_DEBUG_TRACE,
"<= bdb_substring_candidates: (0x%04lx) no keys (%s)\n",
mask, sub->sa_desc->ad_cname.bv_val, 0 );
return 0;
}
for ( i= 0; keys[i].bv_val != NULL; i++ ) {
rc = bdb_key_read( op->o_bd, db, rtxn, &keys[i], tmp, NULL, 0 );
if( rc == DB_NOTFOUND ) {
BDB_IDL_ZERO( ids );
rc = 0;
break;
} else if( rc != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_TRACE,
"<= bdb_substring_candidates: (%s) "
"key read failed (%d)\n",
sub->sa_desc->ad_cname.bv_val, rc, 0 );
break;
}
if( BDB_IDL_IS_ZERO( tmp ) ) {
Debug( LDAP_DEBUG_TRACE,
"<= bdb_substring_candidates: (%s) NULL\n",
sub->sa_desc->ad_cname.bv_val, 0, 0 );
BDB_IDL_ZERO( ids );
break;
}
if ( i == 0 ) {
BDB_IDL_CPY( ids, tmp );
} else {
bdb_idl_intersection( ids, tmp );
}
if( BDB_IDL_IS_ZERO( ids ) )
break;
}
ber_bvarray_free_x( keys, op->o_tmpmemctx );
Debug( LDAP_DEBUG_TRACE, "<= bdb_substring_candidates: %ld, first=%ld, last=%ld\n",
(long) ids[0],
(long) BDB_IDL_FIRST(ids),
(long) BDB_IDL_LAST(ids) );
return( rc );
}
static int
presence_candidates(
Operation *op,
DB_TXN *rtxn,
AttributeDescription *desc,
ID *ids )
{
struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
DB *db;
int rc;
slap_mask_t mask;
struct berval prefix = {0, NULL};
Debug( LDAP_DEBUG_TRACE, "=> bdb_presence_candidates (%s)\n",
desc->ad_cname.bv_val, 0, 0 );
BDB_IDL_ALL( bdb, ids );
if( desc == slap_schema.si_ad_objectClass ) {
return 0;
}
rc = bdb_index_param( op->o_bd, desc, LDAP_FILTER_PRESENT,
&db, &mask, &prefix );
if( rc == LDAP_INAPPROPRIATE_MATCHING ) {
/* not indexed */
Debug( LDAP_DEBUG_TRACE,
"<= bdb_presence_candidates: (%s) not indexed\n",
desc->ad_cname.bv_val, 0, 0 );
return 0;
}
if( rc != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_TRACE,
"<= bdb_presence_candidates: (%s) index_param "
"returned=%d\n",
desc->ad_cname.bv_val, rc, 0 );
return 0;
}
if( prefix.bv_val == NULL ) {
Debug( LDAP_DEBUG_TRACE,
"<= bdb_presence_candidates: (%s) no prefix\n",
desc->ad_cname.bv_val, 0, 0 );
return -1;
}
rc = bdb_key_read( op->o_bd, db, rtxn, &prefix, ids, NULL, 0 );
if( rc == DB_NOTFOUND ) {
BDB_IDL_ZERO( ids );
rc = 0;
} else if( rc != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_TRACE,
"<= bdb_presense_candidates: (%s) "
"key read failed (%d)\n",
desc->ad_cname.bv_val, rc, 0 );
goto done;
}
Debug(LDAP_DEBUG_TRACE,
"<= bdb_presence_candidates: id=%ld first=%ld last=%ld\n",
(long) ids[0],
(long) BDB_IDL_FIRST(ids),
(long) BDB_IDL_LAST(ids) );
done:
return rc;
}
static int
list_candidates(
Operation *op,
DB_TXN *rtxn,
Filter *flist,
int ftype,
ID *ids,
ID *tmp,
ID *save )
{
int rc = 0;
Filter *f;
Debug( LDAP_DEBUG_FILTER, "=> bdb_list_candidates 0x%x\n", ftype, 0, 0 );
for ( f = flist; f != NULL; f = f->f_next ) {
/* ignore precomputed scopes */
if ( f->f_choice == SLAPD_FILTER_COMPUTED &&
f->f_result == LDAP_SUCCESS ) {
continue;
}
BDB_IDL_ZERO( save );
rc = bdb_filter_candidates( op, rtxn, f, save, tmp,
save+BDB_IDL_UM_SIZE );
if ( rc != 0 ) {
if ( rc == DB_LOCK_DEADLOCK )
return rc;
if ( ftype == LDAP_FILTER_AND ) {
rc = 0;
continue;
}
break;
}
if ( ftype == LDAP_FILTER_AND ) {
if ( f == flist ) {
BDB_IDL_CPY( ids, save );
} else {
bdb_idl_intersection( ids, save );
}
if( BDB_IDL_IS_ZERO( ids ) )
break;
} else {
if ( f == flist ) {
BDB_IDL_CPY( ids, save );
} else {
bdb_idl_union( ids, save );
}
}
}
if( rc == LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_FILTER,
"<= bdb_list_candidates: id=%ld first=%ld last=%ld\n",
(long) ids[0],
(long) BDB_IDL_FIRST(ids),
(long) BDB_IDL_LAST(ids) );
} else {
Debug( LDAP_DEBUG_FILTER,
"<= bdb_list_candidates: undefined rc=%d\n",
rc, 0, 0 );
}
return rc;
}
static int
ext_candidates(
Operation *op,
DB_TXN *rtxn,
MatchingRuleAssertion *mra,
ID *ids,
ID *tmp,
ID *stack)
{
struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
#ifdef LDAP_COMP_MATCH
/*
* Currently Only Component Indexing for componentFilterMatch is supported
* Indexing for an extensible filter is not supported yet
*/
if ( mra->ma_cf ) {
return comp_candidates ( op, rtxn, mra, mra->ma_cf, ids, tmp, stack);
}
#endif
if ( mra->ma_desc == slap_schema.si_ad_entryDN ) {
int rc;
EntryInfo *ei;
BDB_IDL_ZERO( ids );
if ( mra->ma_rule == slap_schema.si_mr_distinguishedNameMatch ) {
ei = NULL;
rc = bdb_cache_find_ndn( op, rtxn, &mra->ma_value, &ei );
if ( rc == LDAP_SUCCESS )
bdb_idl_insert( ids, ei->bei_id );
if ( ei )
bdb_cache_entryinfo_unlock( ei );
return 0;
} else if ( mra->ma_rule && mra->ma_rule->smr_match ==
dnRelativeMatch && dnIsSuffix( &mra->ma_value,
op->o_bd->be_nsuffix )) {
int scope;
if ( mra->ma_rule == slap_schema.si_mr_dnSuperiorMatch ) {
struct berval pdn;
ei = NULL;
dnParent( &mra->ma_value, &pdn );
bdb_cache_find_ndn( op, rtxn, &pdn, &ei );
if ( ei ) {
bdb_cache_entryinfo_unlock( ei );
while ( ei && ei->bei_id ) {
bdb_idl_insert( ids, ei->bei_id );
ei = ei->bei_parent;
}
}
return 0;
}
if ( mra->ma_rule == slap_schema.si_mr_dnSubtreeMatch )
scope = LDAP_SCOPE_SUBTREE;
else if ( mra->ma_rule == slap_schema.si_mr_dnOneLevelMatch )
scope = LDAP_SCOPE_ONELEVEL;
else if ( mra->ma_rule == slap_schema.si_mr_dnSubordinateMatch )
scope = LDAP_SCOPE_SUBORDINATE;
else
scope = LDAP_SCOPE_BASE;
if ( scope > LDAP_SCOPE_BASE ) {
ei = NULL;
rc = bdb_cache_find_ndn( op, rtxn, &mra->ma_value, &ei );
if ( ei )
bdb_cache_entryinfo_unlock( ei );
if ( rc == LDAP_SUCCESS ) {
int sc = op->ors_scope;
op->ors_scope = scope;
rc = bdb_dn2idl( op, rtxn, &mra->ma_value, ei, ids,
stack );
op->ors_scope = sc;
}
return 0;
}
}
}
BDB_IDL_ALL( bdb, ids );
return 0;
}
static int
comp_equality_candidates (
Operation *op,
DB_TXN *rtxn,
MatchingRuleAssertion *mra,
ComponentAssertion *ca,
ID *ids,
ID *tmp,
ID *stack)
{
struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
DB *db;
int i;
int rc;
slap_mask_t mask;
struct berval prefix = {0, NULL};
struct berval *keys = NULL;
MatchingRule *mr = mra->ma_rule;
Syntax *sat_syntax;
ComponentReference* cr_list, *cr;
AttrInfo *ai;
BDB_IDL_ALL( bdb, ids );
if ( !ca->ca_comp_ref )
return 0;
ai = bdb_attr_mask( op->o_bd->be_private, mra->ma_desc );
if( ai ) {
cr_list = ai->ai_cr;
}
else {
return 0;
}
/* find a component reference to be indexed */
sat_syntax = ca->ca_ma_rule->smr_syntax;
for ( cr = cr_list ; cr ; cr = cr->cr_next ) {
if ( cr->cr_string.bv_len == ca->ca_comp_ref->cr_string.bv_len &&
strncmp( cr->cr_string.bv_val, ca->ca_comp_ref->cr_string.bv_val,cr->cr_string.bv_len ) == 0 )
break;
}
if ( !cr )
return 0;
rc = bdb_index_param( op->o_bd, mra->ma_desc, LDAP_FILTER_EQUALITY,
&db, &mask, &prefix );
if( rc != LDAP_SUCCESS ) {
return 0;
}
if( !mr ) {
return 0;
}
if( !mr->smr_filter ) {
return 0;
}
rc = (ca->ca_ma_rule->smr_filter)(
LDAP_FILTER_EQUALITY,
cr->cr_indexmask,
sat_syntax,
ca->ca_ma_rule,
&prefix,
&ca->ca_ma_value,
&keys, op->o_tmpmemctx );
if( rc != LDAP_SUCCESS ) {
return 0;
}
if( keys == NULL ) {
return 0;
}
for ( i= 0; keys[i].bv_val != NULL; i++ ) {
rc = bdb_key_read( op->o_bd, db, rtxn, &keys[i], tmp, NULL, 0 );
if( rc == DB_NOTFOUND ) {
BDB_IDL_ZERO( ids );
rc = 0;
break;
} else if( rc != LDAP_SUCCESS ) {
break;
}
if( BDB_IDL_IS_ZERO( tmp ) ) {
BDB_IDL_ZERO( ids );
break;
}
if ( i == 0 ) {
BDB_IDL_CPY( ids, tmp );
} else {
bdb_idl_intersection( ids, tmp );
}
if( BDB_IDL_IS_ZERO( ids ) )
break;
}
ber_bvarray_free_x( keys, op->o_tmpmemctx );
Debug( LDAP_DEBUG_TRACE,
"<= comp_equality_candidates: id=%ld, first=%ld, last=%ld\n",
(long) ids[0],
(long) BDB_IDL_FIRST(ids),
(long) BDB_IDL_LAST(ids) );
return( rc );
}
static int
inequality_candidates(
Operation *op,
DB_TXN *rtxn,
AttributeAssertion *ava,
ID *ids,
ID *tmp,
int gtorlt )
{
struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
DB *db;
int rc;
slap_mask_t mask;
struct berval prefix = {0, NULL};
struct berval *keys = NULL;
MatchingRule *mr;
DBC * cursor = NULL;
Debug( LDAP_DEBUG_TRACE, "=> bdb_inequality_candidates (%s)\n",
ava->aa_desc->ad_cname.bv_val, 0, 0 );
BDB_IDL_ALL( bdb, ids );
rc = bdb_index_param( op->o_bd, ava->aa_desc, LDAP_FILTER_EQUALITY,
&db, &mask, &prefix );
if ( rc == LDAP_INAPPROPRIATE_MATCHING ) {
Debug( LDAP_DEBUG_ANY,
"<= bdb_inequality_candidates: (%s) not indexed\n",
ava->aa_desc->ad_cname.bv_val, 0, 0 );
return 0;
}
if( rc != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_ANY,
"<= bdb_inequality_candidates: (%s) "
"index_param failed (%d)\n",
ava->aa_desc->ad_cname.bv_val, rc, 0 );
return 0;
}
mr = ava->aa_desc->ad_type->sat_equality;
if( !mr ) {
return 0;
}
if( !mr->smr_filter ) {
return 0;
}
rc = (mr->smr_filter)(
LDAP_FILTER_EQUALITY,
mask,
ava->aa_desc->ad_type->sat_syntax,
mr,
&prefix,
&ava->aa_value,
&keys, op->o_tmpmemctx );
if( rc != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_TRACE,
"<= bdb_inequality_candidates: (%s, %s) "
"MR filter failed (%d)\n",
prefix.bv_val, ava->aa_desc->ad_cname.bv_val, rc );
return 0;
}
if( keys == NULL ) {
Debug( LDAP_DEBUG_TRACE,
"<= bdb_inequality_candidates: (%s) no keys\n",
ava->aa_desc->ad_cname.bv_val, 0, 0 );
return 0;
}
BDB_IDL_ZERO( ids );
while(1) {
rc = bdb_key_read( op->o_bd, db, rtxn, &keys[0], tmp, &cursor, gtorlt );
if( rc == DB_NOTFOUND ) {
rc = 0;
break;
} else if( rc != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_TRACE,
"<= bdb_inequality_candidates: (%s) "
"key read failed (%d)\n",
ava->aa_desc->ad_cname.bv_val, rc, 0 );
break;
}
if( BDB_IDL_IS_ZERO( tmp ) ) {
Debug( LDAP_DEBUG_TRACE,
"<= bdb_inequality_candidates: (%s) NULL\n",
ava->aa_desc->ad_cname.bv_val, 0, 0 );
break;
}
bdb_idl_union( ids, tmp );
if( op->ors_limit && op->ors_limit->lms_s_unchecked != -1 &&
BDB_IDL_N( ids ) >= (unsigned) op->ors_limit->lms_s_unchecked ) {
cursor->c_close( cursor );
break;
}
}
ber_bvarray_free_x( keys, op->o_tmpmemctx );
Debug( LDAP_DEBUG_TRACE,
"<= bdb_inequality_candidates: id=%ld, first=%ld, last=%ld\n",
(long) ids[0],
(long) BDB_IDL_FIRST(ids),
(long) BDB_IDL_LAST(ids) );
return( rc );
}