int
tun_rtr_process_input_packet(struct sock *sl)
{
packet_tuple_t tpl;
lbuf_use_stack(&pkt_buf, &pkt_recv_buf, MAX_IP_PKT_LEN);
/* Reserve space in case the received packet was IPv6. In this case the IPv6 header is
* not provided */
lbuf_reserve(&pkt_buf,LBUF_STACK_OFFSET);
if (tun_read_and_decap_pkt(sl->fd, &pkt_buf, &(tpl.iid)) != GOOD) {
return (BAD);
}
OOR_LOG(LDBG_3, "Forwarding packet to OUPUT for re-encapsulation");
lbuf_point_to_l3(&pkt_buf);
lbuf_reset_ip(&pkt_buf);
if (pkt_parse_5_tuple(&pkt_buf, &tpl) != GOOD) {
return (BAD);
}
tun_output(&pkt_buf, &tpl);
return(GOOD);
}
int
vpnapi_output_recv(struct sock *sl)
{
lbuf_use_stack(&pkt_buf, &pkt_recv_buf, VPNAPI_RECEIVE_SIZE);
lbuf_reserve(&pkt_buf, LBUF_STACK_OFFSET);
if (sock_recv(sl->fd, &pkt_buf) != GOOD) {
LMLOG(LWRN, "OUTPUT: Error while reading from tun!");
return (BAD);
}
lbuf_reset_ip(&pkt_buf);
vpnapi_output(&pkt_buf);
return (GOOD);
}
int
tun_process_input_packet(sock_t *sl)
{
uint32_t iid;
lbuf_use_stack(&pkt_buf, &pkt_recv_buf, MAX_IP_PKT_LEN);
if (tun_read_and_decap_pkt(sl->fd, &pkt_buf, &iid) != GOOD) {
return (BAD);
}
/* XXX Destination packet should be checked it belongs to this xTR */
if ((write(tun_receive_fd, lbuf_l3(&pkt_buf), lbuf_size(&pkt_buf))) < 0) {
OOR_LOG(LDBG_2, "lisp_input: write error: %s\n ", strerror(errno));
}
return (GOOD);
}
