cifs: Modify struct cifs_unix_set_info_args to hold a kuid_t and a kgid_t
Use INVALID_UID and INVALID_GID instead of NO_CHANGE_64 to indicate
the value should not be changed.
In cifs_fill_unix_set_info convert from kuids and kgids into uids and
gids that will fit in FILE_UNIX_BASIC_INFO.
Cc: Steve French <smfrench@gmail.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 76d0d29..00e12f2 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -5819,8 +5819,14 @@
cifs_fill_unix_set_info(FILE_UNIX_BASIC_INFO *data_offset,
const struct cifs_unix_set_info_args *args)
{
+ u64 uid = NO_CHANGE_64, gid = NO_CHANGE_64;
u64 mode = args->mode;
+ if (uid_valid(args->uid))
+ uid = from_kuid(&init_user_ns, args->uid);
+ if (gid_valid(args->gid))
+ gid = from_kgid(&init_user_ns, args->gid);
+
/*
* Samba server ignores set of file size to zero due to bugs in some
* older clients, but we should be precise - we use SetFileSize to
@@ -5833,8 +5839,8 @@
data_offset->LastStatusChange = cpu_to_le64(args->ctime);
data_offset->LastAccessTime = cpu_to_le64(args->atime);
data_offset->LastModificationTime = cpu_to_le64(args->mtime);
- data_offset->Uid = cpu_to_le64(args->uid);
- data_offset->Gid = cpu_to_le64(args->gid);
+ data_offset->Uid = cpu_to_le64(uid);
+ data_offset->Gid = cpu_to_le64(gid);
/* better to leave device as zero when it is */
data_offset->DevMajor = cpu_to_le64(MAJOR(args->device));
data_offset->DevMinor = cpu_to_le64(MINOR(args->device));