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-rw-r--r--fs/cifs/smb2ops.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index b96bacce955a..a53e2053ae9d 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -209,6 +209,31 @@ smb2_negotiate_rsize(struct cifs_tcon *tcon, struct smb_vol *volume_info)
return rsize;
}
+static void
+smb2_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon)
+{
+ int rc;
+ __le16 srch_path = 0; /* Null - open root of share */
+ u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
+ struct cifs_open_parms oparms;
+ struct cifs_fid fid;
+
+ oparms.tcon = tcon;
+ oparms.desired_access = FILE_READ_ATTRIBUTES;
+ oparms.disposition = FILE_OPEN;
+ oparms.create_options = 0;
+ oparms.fid = &fid;
+ oparms.reconnect = false;
+
+ rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL);
+ if (rc)
+ return;
+
+ SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid);
+ SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
+ return;
+}
+
static int
smb2_is_path_accessible(const unsigned int xid, struct cifs_tcon *tcon,
struct cifs_sb_info *cifs_sb, const char *full_path)
@@ -873,6 +898,7 @@ struct smb_version_operations smb20_operations = {
.logoff = SMB2_logoff,
.tree_connect = SMB2_tcon,
.tree_disconnect = SMB2_tdis,
+ .qfs_tcon = smb2_qfs_tcon,
.is_path_accessible = smb2_is_path_accessible,
.can_echo = smb2_can_echo,
.echo = SMB2_echo,
@@ -945,6 +971,7 @@ struct smb_version_operations smb21_operations = {
.logoff = SMB2_logoff,
.tree_connect = SMB2_tcon,
.tree_disconnect = SMB2_tdis,
+ .qfs_tcon = smb2_qfs_tcon,
.is_path_accessible = smb2_is_path_accessible,
.can_echo = smb2_can_echo,
.echo = SMB2_echo,
@@ -1018,6 +1045,7 @@ struct smb_version_operations smb30_operations = {
.logoff = SMB2_logoff,
.tree_connect = SMB2_tcon,
.tree_disconnect = SMB2_tdis,
+ .qfs_tcon = smb2_qfs_tcon,
.is_path_accessible = smb2_is_path_accessible,
.can_echo = smb2_can_echo,
.echo = SMB2_echo,