IP_SIMPLE_HDR_LENGTH_IN_WORDS
tcp->tcp_ipha->ip_hl = IP_SIMPLE_HDR_LENGTH_IN_WORDS;
((IP_VERSION << 4) | IP_SIMPLE_HDR_LENGTH_IN_WORDS)
| (IP_SIMPLE_HDR_LENGTH_IN_WORDS + RTRALERT_LEN_IN_WORDS);
| (IP_SIMPLE_HDR_LENGTH_IN_WORDS + RTRALERT_LEN_IN_WORDS);
(uint8_t)((IP_VERSION << 4) + IP_SIMPLE_HDR_LENGTH_IN_WORDS);
(uint8_t)((IP_VERSION << 4) + IP_SIMPLE_HDR_LENGTH_IN_WORDS);
(uint8_t)((IP_VERSION << 4) + IP_SIMPLE_HDR_LENGTH_IN_WORDS);
if (opt_len > (15 - IP_SIMPLE_HDR_LENGTH_IN_WORDS)) {
len = ((size_t)opt_len + IP_SIMPLE_HDR_LENGTH_IN_WORDS) << 2;
IP_SIMPLE_HDR_LENGTH_IN_WORDS);
iphp->ip_hl = IP_SIMPLE_HDR_LENGTH_IN_WORDS;
IP_SIMPLE_HDR_LENGTH_IN_WORDS;