ah_alloc_tmp
iph = ah_alloc_tmp(ahash, nfrags + sglists, ihl + seqhi_len);
work_iph = ah_alloc_tmp(ahash, nfrags + sglists, ihl +
iph_base = ah_alloc_tmp(ahash, nfrags + sglists, IPV6HDR_BASELEN +
work_iph = ah_alloc_tmp(ahash, nfrags + sglists, hdr_len +