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ldb_tdb: Treat distinguishedName and objectGUID (in Samba) as unique

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This avoids loading any second index for these cases.

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
This commit is contained in:
Andrew Bartlett 2017-09-21 21:11:54 +12:00
parent 644b3ffb14
commit 303739e801
1 changed files with 16 additions and 2 deletions
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18
lib/ldb/ldb_tdb/ldb_index.c
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@ -1237,11 +1237,24 @@ static int ltdb_index_dn_not(struct ldb_module *module,
return LDB_ERR_OPERATIONS_ERROR;
}
/*
* These things are unique, so avoid a full scan if this is a search
* by GUID, DN or a unique attribute
*/
static bool ltdb_index_unique(struct ldb_context *ldb,
struct ltdb_private *ltdb,
const char *attr)
{
const struct ldb_schema_attribute *a;
if (ltdb->cache->GUID_index_attribute != NULL) {
if (ldb_attr_cmp(attr, ltdb->cache->GUID_index_attribute) == 0) {
return true;
}
}
if (ldb_attr_dn(attr) == 0) {
return true;
}
a = ldb_schema_attribute_by_name(ldb, attr);
if (a->flags & LDB_ATTR_FLAG_UNIQUE_INDEX) {
return true;
@ -1274,7 +1287,8 @@ static int ltdb_index_dn_and(struct ldb_module *module,
int ret;
if (subtree->operation != LDB_OP_EQUALITY ||
!ltdb_index_unique(ldb, subtree->u.equality.attr)) {
!ltdb_index_unique(ldb, ltdb,
subtree->u.equality.attr)) {
continue;
}