pptp_inbound_pkt 287 net/ipv4/netfilter/nf_nat_pptp.c rcu_assign_pointer(nf_nat_pptp_hook_inbound, pptp_inbound_pkt); pptp_inbound_pkt 574 net/netfilter/nf_conntrack_pptp.c ret = pptp_inbound_pkt(skb, ctlh, pptpReq, reqlen, ct,