SCTP_HEADER_LEN
length = SCTP_HEADER_LEN(m);
if (SCTP_HEADER_LEN(m) != length) {
"sctp_input() length:%d reported length:%d\n", length, SCTP_HEADER_LEN(m));
sndlen = SCTP_HEADER_LEN(top);
if (SCTP_HEADER_LEN(m) != length) {
"sctp6_input() length:%d reported length:%d\n", length, SCTP_HEADER_LEN(m));