map_sip_addr      204 net/ipv4/netfilter/nf_nat_sip.c 	if (!map_sip_addr(skb, dptr, datalen, SIP_HDR_FROM) ||
map_sip_addr      205 net/ipv4/netfilter/nf_nat_sip.c 	    !map_sip_addr(skb, dptr, datalen, SIP_HDR_TO))