sctp: add support for generating stream reconf resp chunk

This patch is to define Re-configuration Response Parameter described
in rfc6525 section 4.4. As optional fields are only for SSN/TSN Reset
Request Parameter, it uses another function to make that.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/sctp/sm.h b/include/net/sctp/sm.h
index 3675fde..8a85dd7 100644
--- a/include/net/sctp/sm.h
+++ b/include/net/sctp/sm.h
@@ -270,6 +270,13 @@
 struct sctp_chunk *sctp_make_strreset_addstrm(
 				const struct sctp_association *asoc,
 				__u16 out, __u16 in);
+struct sctp_chunk *sctp_make_strreset_resp(
+				const struct sctp_association *asoc,
+				__u32 result, __u32 sn);
+struct sctp_chunk *sctp_make_strreset_tsnresp(
+				struct sctp_association *asoc,
+				__u32 result, __u32 sn,
+				__u32 sender_tsn, __u32 receiver_tsn);
 void sctp_chunk_assign_tsn(struct sctp_chunk *);
 void sctp_chunk_assign_ssn(struct sctp_chunk *);