slirp/ip6_output.c

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