1/* SPDX-License-Identifier: BSD-3-Clause */ 2/* 3 * Copyright (c) 2013 4 * Guillaume Subiron, Yann Bordenave, Serigne Modou Wagne. 5 */ 6 7#include "slirp.h" 8 9/* Number of packets queued before we start sending 10 * (to prevent allocing too many mbufs) */ 11#define IF6_THRESH 10 12 13/* 14 * IPv6 output. The packet in mbuf chain m contains a IP header 15 */ 16int ip6_output(struct socket *so, struct mbuf *m, int fast) 17{ 18 struct ip6 *ip = mtod(m, struct ip6 *); 19 20 DEBUG_CALL("ip6_output"); 21 DEBUG_ARG("so = %p", so); 22 DEBUG_ARG("m = %p", m); 23 24 /* Fill IPv6 header */ 25 ip->ip_v = IP6VERSION; 26 ip->ip_hl = IP6_HOP_LIMIT; 27 ip->ip_tc_hi = 0; 28 ip->ip_tc_lo = 0; 29 ip->ip_fl_hi = 0; 30 ip->ip_fl_lo = 0; 31 32 if (fast) { 33 if_encap(m->slirp, m); 34 } else { 35 if_output(so, m); 36 } 37 38 return 0; 39} 40