CIFS: Add capability to send SMB2 negotiate message
and add negotiate request type to let set_credits know that
we are only on negotiate stage and no need to make a decision
about disabling echos and oplocks.
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Steve French <smfrench@gmail.com>
diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h
index 19bf987..8817670 100644
--- a/fs/cifs/smb2proto.h
+++ b/fs/cifs/smb2proto.h
@@ -35,10 +35,17 @@
extern int map_smb2_to_linux_error(char *buf, bool log_err);
extern int smb2_check_message(char *buf, unsigned int length);
extern unsigned int smb2_calc_size(struct smb2_hdr *hdr);
+extern char *smb2_get_data_area_len(int *off, int *len, struct smb2_hdr *hdr);
extern int smb2_check_receive(struct mid_q_entry *mid,
struct TCP_Server_Info *server, bool log_error);
extern int smb2_setup_request(struct cifs_ses *ses, struct kvec *iov,
unsigned int nvec, struct mid_q_entry **ret_mid);
+/*
+ * SMB2 Worker functions - most of protocol specific implementation details
+ * are contained within these calls.
+ */
+extern int SMB2_negotiate(const unsigned int xid, struct cifs_ses *ses);
+
#endif /* _SMB2PROTO_H */