Import USB RNDIS driver to FreeBSD from OpenBSD.

Useful for so-called USB tethering.
- Imported code from OpenBSD
- Adapted code to FreeBSD
- Removed some unused functions
- Fixed some buffer encoding and decoding issues
- Optimised data transport path a bit, by sending multiple packets at a time
- Increased receive buffer to 16K

Obtained from:	OpenBSD
Requested by:	eadler @
MFC after:	2 weeks

2 files changed, 38 insertions, 0 deletions

diff --git a/sys/modules/usb/Makefile b/sys/modules/usb/Makefile
index 626f4b4..eacd2eb 100644
--- a/sys/modules/usb/Makefile
+++ b/sys/modules/usb/Makefile
@@ -51,6 +51,7 @@ SUBDIR += atp uhid ukbd ums udbp ufm uep wsp
 SUBDIR += ucom u3g uark ubsa ubser uchcom ucycom ufoma uftdi ugensa uipaq ulpt \
 	  umct umcs umodem umoscom uplcom uslcom uvisor uvscom
 SUBDIR += uether aue axe axge cdce cue ${_kue} mos rue smsc udav uhso ipheth
+SUBDIR += urndis
 SUBDIR += usfs umass urio
 SUBDIR += quirk template
 SUBDIR += ${_g_audio} ${_g_keyboard} ${_g_modem} ${_g_mouse}
diff --git a/sys/modules/usb/urndis/Makefile b/sys/modules/usb/urndis/Makefile
new file mode 100644
index 0000000..929572d
--- /dev/null
+++ b/sys/modules/usb/urndis/Makefile
@@ -0,0 +1,37 @@
+#
+# $FreeBSD$
+#
+# Copyright (c) 2014 Hans Petter Selasky. All rights reserved.
+#
+# 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.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
+#
+
+S=     ${.CURDIR}/../../..
+
+.PATH: $S/dev/usb/net
+
+KMOD=	if_urndis
+SRCS=	opt_bus.h opt_usb.h device_if.h bus_if.h usb_if.h usbdevs.h \
+	miibus_if.h opt_inet.h \
+	if_urndis.c
+
+.include <bsd.kmod.mk>