s3/locking: helper functions for lease types

Add some helper functions that will be used to update a bunch of checks
for exclusive oplocks to the lease area.

Bug: https://bugzilla.samba.org/show_bug.cgi?id=12766

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
(cherry picked from commit f631e95e2de857ea98204609a71e6db00993994b)

diff --git a/source3/locking/leases_util.c b/source3/locking/leases_util.c
index 5d07ff9dd7bb5ffec07634f11e9cc50ab431b6ff..af1e8374128580b568ea3d4e57f9789df41418fc 100644 (file)
--- a/source3/locking/leases_util.c
+++ b/source3/locking/leases_util.c
@@ -53,3 +53,20 @@ uint32_t fsp_lease_type(const struct files_struct *fsp)
        }
        return map_oplock_to_lease_type(fsp->oplock_type);
 }
+
+uint32_t lease_type_is_exclusive(uint32_t lease_type)
+{
+       if ((lease_type & (SMB2_LEASE_READ | SMB2_LEASE_WRITE)) ==
+           (SMB2_LEASE_READ | SMB2_LEASE_WRITE)) {
+               return true;
+       }
+
+       return false;
+}
+
+bool fsp_lease_type_is_exclusive(const struct files_struct *fsp)
+{
+       uint32_t lease_type = fsp_lease_type(fsp);
+
+       return lease_type_is_exclusive(lease_type);
+}

diff --git a/source3/locking/proto.h b/source3/locking/proto.h
index 31c496870219352a08ebfae48eb84234e1300646..461f89a89f5b7dcee721d23e30377dc61d020cd1 100644 (file)
--- a/source3/locking/proto.h
+++ b/source3/locking/proto.h
@@ -251,5 +251,7 @@ bool release_posix_lock_posix_flavour(files_struct *fsp,
 /* The following definitions come from locking/leases_util.c */
 uint32_t map_oplock_to_lease_type(uint16_t op_type);
 uint32_t fsp_lease_type(const struct files_struct *fsp);
+uint32_t lease_type_is_exclusive(uint32_t lease_type);
+bool fsp_lease_type_is_exclusive(const struct files_struct *fsp);
 
 #endif /* _LOCKING_PROTO_H_ */