diff options
Diffstat (limited to 'qemu/slirp/tcp_output.c')
| -rw-r--r-- | qemu/slirp/tcp_output.c | 54 |
1 files changed, 43 insertions, 11 deletions
diff --git a/qemu/slirp/tcp_output.c b/qemu/slirp/tcp_output.c index 8aa3d9047..99b0a9b1c 100644 --- a/qemu/slirp/tcp_output.c +++ b/qemu/slirp/tcp_output.c @@ -38,6 +38,7 @@ * terms and conditions of the copyright. */ +#include "qemu/osdep.h" #include <slirp.h> static const u_char tcp_outflags[TCP_NSTATES] = { @@ -60,13 +61,15 @@ tcp_output(struct tcpcb *tp) register long len, win; int off, flags, error; register struct mbuf *m; - register struct tcpiphdr *ti; + register struct tcpiphdr *ti, tcpiph_save; + struct ip *ip; + struct ip6 *ip6; u_char opt[MAX_TCPOPTLEN]; unsigned optlen, hdrlen; int idle, sendalot; DEBUG_CALL("tcp_output"); - DEBUG_ARG("tp = %lx", (long )tp); + DEBUG_ARG("tp = %p", tp); /* * Determine length of data that should be transmitted, @@ -446,16 +449,45 @@ send: * the template, but need a way to checksum without them. */ m->m_len = hdrlen + len; /* XXX Needed? m_len should be correct */ + tcpiph_save = *mtod(m, struct tcpiphdr *); + + switch (so->so_ffamily) { + case AF_INET: + m->m_data += sizeof(struct tcpiphdr) - sizeof(struct tcphdr) + - sizeof(struct ip); + m->m_len -= sizeof(struct tcpiphdr) - sizeof(struct tcphdr) + - sizeof(struct ip); + ip = mtod(m, struct ip *); + + ip->ip_len = m->m_len; + ip->ip_dst = tcpiph_save.ti_dst; + ip->ip_src = tcpiph_save.ti_src; + ip->ip_p = tcpiph_save.ti_pr; + + ip->ip_ttl = IPDEFTTL; + ip->ip_tos = so->so_iptos; + error = ip_output(so, 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 = tcpiph_save.ti_len; + ip6->ip_dst = tcpiph_save.ti_dst6; + ip6->ip_src = tcpiph_save.ti_src6; + ip6->ip_nh = tcpiph_save.ti_nh6; + + error = ip6_output(so, m, 0); + break; + + default: + g_assert_not_reached(); + } - { - - ((struct ip *)ti)->ip_len = m->m_len; - - ((struct ip *)ti)->ip_ttl = IPDEFTTL; - ((struct ip *)ti)->ip_tos = so->so_iptos; - - error = ip_output(so, m); - } if (error) { out: return (error); |