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authorGuillaume Subiron <maethor@subiron.org>2015-12-19 22:24:58 +0100
committerJason Wang <jasowang@redhat.com>2016-02-04 13:22:06 +0800
commiteae303ff23f51259eddc8856c71453d887ffe51a (patch)
treee6ebb289e43d60bb5687264b5fc88dae2a595b03 /slirp/socket.c
parent18137fba35980de428664fca3576b5d187e96fef (diff)
downloadfocaccia-qemu-eae303ff23f51259eddc8856c71453d887ffe51a.tar.gz
focaccia-qemu-eae303ff23f51259eddc8856c71453d887ffe51a.zip
slirp: Make Socket structure IPv6 compatible
This patch replaces foreign and local address/port couples in Socket
structure by 2 sockaddr_storage which can be casted in sockaddr_in.
Direct access to address and port is still possible thanks to some
\#define, so retrocompatibility of the existing code is assured.

The ss_family field of sockaddr_storage is declared after each socket
creation.

The whole structure is also saved/restored when a Qemu session is
saved/restored.

This prepares for IPv6 support.

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>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'slirp/socket.c')
-rw-r--r--slirp/socket.c14
1 files changed, 11 insertions, 3 deletions
diff --git a/slirp/socket.c b/slirp/socket.c
index 1673e3afce..bf603c9185 100644
--- a/slirp/socket.c
+++ b/slirp/socket.c
@@ -437,8 +437,8 @@ sowrite(struct socket *so)
 void
 sorecvfrom(struct socket *so)
 {
-	struct sockaddr_in addr;
-	socklen_t addrlen = sizeof(struct sockaddr_in);
+	struct sockaddr_storage addr;
+	socklen_t addrlen = sizeof(struct sockaddr_storage);
 
 	DEBUG_CALL("sorecvfrom");
 	DEBUG_ARG("so = %p", so);
@@ -527,7 +527,13 @@ sorecvfrom(struct socket *so)
 	     * If this packet was destined for CTL_ADDR,
 	     * make it look like that's where it came from, done by udp_output
 	     */
-	    udp_output(so, m, &addr);
+	    switch (so->so_ffamily) {
+	    case AF_INET:
+	        udp_output(so, m, (struct sockaddr_in *) &addr);
+	        break;
+	    default:
+	        break;
+	    }
 	  } /* rx error */
 	} /* if ping packet */
 }
@@ -619,6 +625,7 @@ tcp_listen(Slirp *slirp, uint32_t haddr, u_int hport, uint32_t laddr,
 
 	so->so_state &= SS_PERSISTENT_MASK;
 	so->so_state |= (SS_FACCEPTCONN | flags);
+	so->so_lfamily = AF_INET;
 	so->so_lport = lport; /* Kept in network format */
 	so->so_laddr.s_addr = laddr; /* Ditto */
 
@@ -645,6 +652,7 @@ tcp_listen(Slirp *slirp, uint32_t haddr, u_int hport, uint32_t laddr,
 	qemu_setsockopt(s, SOL_SOCKET, SO_OOBINLINE, &opt, sizeof(int));
 
 	getsockname(s,(struct sockaddr *)&addr,&addrlen);
+	so->so_ffamily = AF_INET;
 	so->so_fport = addr.sin_port;
 	if (addr.sin_addr.s_addr == 0 || addr.sin_addr.s_addr == loopback_addr.s_addr)
 	   so->so_faddr = slirp->vhost_addr;