diff options
| author | Guillaume Subiron <maethor@subiron.org> | 2016-03-15 10:31:21 +0100 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2016-03-15 10:35:19 +0100 |
| commit | 3feea4447f1b9b04816ee6977b5ecc0eb704e07a (patch) | |
| tree | fc7a5cb36318171ffd51c4698a5517429b9a9e55 /slirp/tcp_subr.c | |
| parent | 1252cf40a83ed91e0ee30cc5f206ce9372c640d8 (diff) | |
slirp: Handle IPv6 in TCP functions
This patch adds IPv6 case in TCP functions refactored by the last
patches.
This also adds IPv6 pseudo-header in tcpiphdr structure.
Finally, tcp_input() is called by ip6_input().
Signed-off-by: Guillaume Subiron <maethor@subiron.org>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Diffstat (limited to 'slirp/tcp_subr.c')
| -rw-r--r-- | slirp/tcp_subr.c | 32 |
1 files changed, 30 insertions, 2 deletions
diff --git a/slirp/tcp_subr.c b/slirp/tcp_subr.c index c16b29d763..dbfd2c673b 100644 --- a/slirp/tcp_subr.c +++ b/slirp/tcp_subr.c @@ -88,6 +88,15 @@ tcp_template(struct tcpcb *tp) n->ti_dport = so->so_lport; break; + case AF_INET6: + n->ti_nh6 = IPPROTO_TCP; + n->ti_len = htons(sizeof(struct tcphdr)); + n->ti_src6 = so->so_faddr6; + n->ti_dst6 = so->so_laddr6; + n->ti_sport = so->so_fport6; + n->ti_dport = so->so_lport6; + break; + default: g_assert_not_reached(); } @@ -156,6 +165,10 @@ tcp_respond(struct tcpcb *tp, struct tcpiphdr *ti, struct mbuf *m, xchg(ti->ti_dst.s_addr, ti->ti_src.s_addr, uint32_t); xchg(ti->ti_dport, ti->ti_sport, uint16_t); break; + case AF_INET6: + xchg(ti->ti_dst6, ti->ti_src6, struct in6_addr); + xchg(ti->ti_dport, ti->ti_sport, uint16_t); + break; default: g_assert_not_reached(); } @@ -182,6 +195,7 @@ tcp_respond(struct tcpcb *tp, struct tcpiphdr *ti, struct mbuf *m, struct tcpiphdr tcpiph_save = *(mtod(m, struct tcpiphdr *)); struct ip *ip; + struct ip6 *ip6; switch (af) { case AF_INET: @@ -201,7 +215,21 @@ tcp_respond(struct tcpcb *tp, struct tcpiphdr *ti, struct mbuf *m, ip->ip_ttl = IPDEFTTL; } - (void) ip_output((struct socket *)0, m); + ip_output(NULL, m); + break; + + case AF_INET6: + m->m_data += sizeof(struct tcpiphdr) - sizeof(struct tcphdr) + - sizeof(struct ip6); + m->m_len -= sizeof(struct tcpiphdr) - sizeof(struct tcphdr) + - sizeof(struct ip6); + ip6 = mtod(m, struct ip6 *); + ip6->ip_pl = tlen; + ip6->ip_dst = tcpiph_save.ti_dst6; + ip6->ip_src = tcpiph_save.ti_src6; + ip6->ip_nh = tcpiph_save.ti_nh6; + + ip6_output(NULL, m, 0); break; default: @@ -225,7 +253,7 @@ tcp_newtcpcb(struct socket *so) memset((char *) tp, 0, sizeof(struct tcpcb)); tp->seg_next = tp->seg_prev = (struct tcpiphdr*)tp; - tp->t_maxseg = TCP_MSS; + tp->t_maxseg = (so->so_ffamily == AF_INET) ? TCP_MSS : TCP6_MSS; tp->t_flags = TCP_DO_RFC1323 ? (TF_REQ_SCALE|TF_REQ_TSTMP) : 0; tp->t_socket = so; |