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-rw-r--r--net/sctp/sm_make_chunk.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index 21d0ff1c6ab9..f77484df097b 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -1142,6 +1142,26 @@ nodata:
return retval;
}
+struct sctp_chunk *sctp_make_new_encap_port(const struct sctp_association *asoc,
+ const struct sctp_chunk *chunk)
+{
+ struct sctp_new_encap_port_hdr nep;
+ struct sctp_chunk *retval;
+
+ retval = sctp_make_abort(asoc, chunk,
+ sizeof(struct sctp_errhdr) + sizeof(nep));
+ if (!retval)
+ goto nodata;
+
+ sctp_init_cause(retval, SCTP_ERROR_NEW_ENCAP_PORT, sizeof(nep));
+ nep.cur_port = SCTP_INPUT_CB(chunk->skb)->encap_port;
+ nep.new_port = chunk->transport->encap_port;
+ sctp_addto_chunk(retval, sizeof(nep), &nep);
+
+nodata:
+ return retval;
+}
+
/* Make a HEARTBEAT chunk. */
struct sctp_chunk *sctp_make_heartbeat(const struct sctp_association *asoc,
const struct sctp_transport *transport)