0b11c03662
Add ipv4 and ipv6 boolean options, so the user can setup IPv4-only and IPv6-only network environments. Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Reviewed-by: Thomas Huth <thuth@redhat.com>
79 lines
1.5 KiB
C
79 lines
1.5 KiB
C
/*
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* Copyright (c) 2013
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* Guillaume Subiron, Yann Bordenave, Serigne Modou Wagne.
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*/
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#include "qemu/osdep.h"
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#include "slirp.h"
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#include "ip6_icmp.h"
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/*
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* IP initialization: fill in IP protocol switch table.
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* All protocols not implemented in kernel go to raw IP protocol handler.
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*/
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void ip6_init(Slirp *slirp)
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{
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icmp6_init(slirp);
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}
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void ip6_cleanup(Slirp *slirp)
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{
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icmp6_cleanup(slirp);
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}
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void ip6_input(struct mbuf *m)
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{
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struct ip6 *ip6;
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Slirp *slirp = m->slirp;
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if (!slirp->in6_enabled) {
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goto bad;
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}
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DEBUG_CALL("ip6_input");
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DEBUG_ARG("m = %lx", (long)m);
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DEBUG_ARG("m_len = %d", m->m_len);
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if (m->m_len < sizeof(struct ip6)) {
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goto bad;
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}
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ip6 = mtod(m, struct ip6 *);
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if (ip6->ip_v != IP6VERSION) {
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goto bad;
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}
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if (ntohs(ip6->ip_pl) > IF_MTU) {
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icmp6_send_error(m, ICMP6_TOOBIG, 0);
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goto bad;
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}
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/* check ip_ttl for a correct ICMP reply */
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if (ip6->ip_hl == 0) {
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icmp6_send_error(m, ICMP6_TIMXCEED, ICMP6_TIMXCEED_INTRANS);
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goto bad;
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}
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/*
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* Switch out to protocol's input routine.
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*/
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switch (ip6->ip_nh) {
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case IPPROTO_TCP:
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NTOHS(ip6->ip_pl);
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tcp_input(m, sizeof(struct ip6), (struct socket *)NULL, AF_INET6);
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break;
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case IPPROTO_UDP:
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udp6_input(m);
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break;
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case IPPROTO_ICMPV6:
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icmp6_input(m);
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break;
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default:
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m_free(m);
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}
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return;
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bad:
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m_free(m);
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}
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