New git repository for release - version 0.2.0 tagged

1 files changed, 87 insertions, 0 deletions

diff --git a/mac-tap/tuntap/src/tun/tun_inet_proto.c b/mac-tap/tuntap/src/tun/tun_inet_proto.c
new file mode 100644
index 00000000..38ecd26b
--- /dev/null
+++ b/mac-tap/tuntap/src/tun/tun_inet_proto.c
@@ -0,0 +1,87 @@
+/*
+ * ip tunnel device for MacOSX. This is the protocol module for PF_INET.
+ */
+/*
+ * Copyright (c) 2011 Mattias Nissler <mattias.nissler@gmx.de>
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted
+ * provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright notice, this list of
+ *      conditions and the following disclaimer.
+ *   2. Redistributions in binary form must reproduce the above copyright notice, this list of
+ *      conditions and the following disclaimer in the documentation and/or other materials provided
+ *      with the distribution.
+ *   3. The name of the author may not be used to endorse or promote products derived from this
+ *      software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/kpi_mbuf.h>
+#include <sys/socket.h>
+#include <sys/errno.h>
+#include <sys/param.h>
+
+#include <net/kpi_protocol.h>
+#include <net/kpi_interface.h>
+
+static errno_t
+tun_inet_input(ifnet_t ifp, protocol_family_t protocol, mbuf_t m, char *header)
+{
+	/* input the packet */
+	return proto_input(PF_INET, m);
+}
+
+static errno_t
+tun_inet_pre_output(ifnet_t ifp, protocol_family_t proto, mbuf_t *packet,
+		const struct sockaddr *dest, void *route, char *frame_type, char *dst_addr)
+{
+
+	/* check wether the destination address is an inet address */
+	if (dest->sa_family != AF_INET)
+		return EAFNOSUPPORT;
+
+	/* place the address family as frame type */
+	*((uint32_t *) frame_type) = htonl(AF_INET);
+
+	return 0;
+}
+
+errno_t
+tun_inet_attach(ifnet_t ifp, protocol_family_t proto)
+{
+	struct ifnet_attach_proto_param pr;
+	struct ifnet_demux_desc ddesc[1];
+
+	/* fill out pr and attach the protocol */
+	ddesc[0].type = AF_INET;
+	ddesc[0].data = NULL;
+	ddesc[0].datalen = 0;
+	pr.demux_array = ddesc;
+	pr.demux_count = 1;
+	pr.input = tun_inet_input;
+	pr.pre_output = tun_inet_pre_output;
+	pr.event = NULL;
+	pr.ioctl = NULL;
+	pr.detached = NULL;
+	pr.resolve = NULL;
+	pr.send_arp = NULL;
+
+	return ifnet_attach_protocol(ifp, proto, &pr);
+}
+
+void
+tun_inet_detach(ifnet_t ifp, protocol_family_t proto)
+{
+	/* just detach the protocol */
+	ifnet_detach_protocol(ifp, proto);
+}
+