SIP_HDR_FROM      204 net/ipv4/netfilter/nf_nat_sip.c 	if (!map_sip_addr(skb, dptr, datalen, SIP_HDR_FROM) ||
SIP_HDR_FROM      283 net/netfilter/nf_conntrack_sip.c 	[SIP_HDR_FROM]			= SIP_HDR("From", "f", "sip:", skp_epaddr_len),