Hi
Instead of adding a new driver for each USB RNG device here's a diff to
combine the existing ualea(4) driver and support for a new device (ChaosKey
support by abieber@) into urng(4).
The plan is to merge uonerng(4) into it as well as support for future
devices into this single driver.
This was tested by abieber@ with a ChaosKey and Sean with an Alea II.
OK?
Cheers,
Jasper
Index: share/man/man4/Makefile
===================================================================
RCS file: /cvs/src/share/man/man4/Makefile,v
retrieving revision 1.656
diff -u -p -r1.656 Makefile
--- share/man/man4/Makefile 25 Aug 2017 11:17:35 -0000 1.656
+++ share/man/man4/Makefile 26 Aug 2017 19:44:32 -0000
@@ -61,7 +61,7 @@ MAN= aac.4 ac97.4 acphy.4 \
stp.4 sv.4 switch.4 sym.4 tcic.4 tcp.4 termios.4 tht.4 ti.4 tl.4 \
tlphy.4 thmc.4 tpm.4 tqphy.4 trm.4 trunk.4 tsl.4 tty.4 tun.4 tap.4 \
twe.4 \
- txp.4 txphy.4 ualea.4 uaudio.4 uark.4 uath.4 ubcmtp.4 uberry.4 ubsa.4 \
+ txp.4 txphy.4 uaudio.4 uark.4 uath.4 ubcmtp.4 uberry.4 ubsa.4 \
ubsec.4 \
ucom.4 uchcom.4 ucycom.4 uslhcom.4 udav.4 udcf.4 udl.4 udp.4 udsbr.4 \
uftdi.4 ugen.4 ugl.4 ugold.4 uguru.4 uhci.4 uhid.4 uhidev.4 uipaq.4 \
@@ -69,7 +69,7 @@ MAN= aac.4 ac97.4 acphy.4 \
ukphy.4 ulpt.4 umass.4 umb.4 umbg.4 umcs.4 umct.4 umidi.4 umodem.4 \
ums.4 umsm.4 unix.4 uonerng.4 uow.4 uoaklux.4 uoakrh.4 uoakv.4 upd.4 \
upgt.4 upl.4 uplcom.4 ural.4 ure.4 url.4 urlphy.4 \
- urndis.4 urtw.4 urtwn.4 usb.4 uscom.4 uslcom.4 usps.4 \
+ urndis.4 urng.4 urtw.4 urtwn.4 usb.4 uscom.4 uslcom.4 usps.4 \
uthum.4 uticom.4 utpms.4 utwitch.4 utrh.4 uts.4 utvfu.4 uvideo.4 \
uvisor.4 uvscom.4 uwacom.4 \
vether.4 vga.4 vgafb.4 vge.4 \
Index: share/man/man4/ualea.4
===================================================================
RCS file: share/man/man4/ualea.4
diff -N share/man/man4/ualea.4
--- share/man/man4/ualea.4 16 Apr 2015 08:56:53 -0000 1.1
+++ /dev/null 1 Jan 1970 00:00:00 -0000
@@ -1,54 +0,0 @@
-.\" $OpenBSD: ualea.4,v 1.1 2015/04/16 08:56:53 mpi Exp $
-.\"
-.\" Copyright (c) 2007 Marc Balmer <[email protected]>
-.\" Copyright (c) 2015 Sean Levy <[email protected]>
-.\"
-.\" Permission to use, copy, modify, and distribute this software for any
-.\" purpose with or without fee is hereby granted, provided that the above
-.\" copyright notice and this permission notice appear in all copies.
-.\"
-.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-.\"
-.Dd $Mdocdate: April 16 2015 $
-.Dt UALEA 4
-.Os
-.Sh NAME
-.Nm ualea
-.Nd Araneus Alea II USB TRNG
-.Sh SYNOPSIS
-.Cd "ualea* at uhub?"
-.Sh DESCRIPTION
-The
-.Nm
-driver provides support for the Araneus Alea II, a USB true random
-number generator (TRNG).
-It delivers 100kbit/sec of hardware-generated entropy.
-.Nm
-reads raw entropy from the Alea II and uses
-.Xr add_true_randomness 9
-to add it to the system entropy pool.
-.Pp
-The product documentation states that the USB interface used by the
-Alea II is the same as that used by its predecessor the Alea I;
-theoretically this means that the Alea I should work but this has not
-been tested.
-.Sh SEE ALSO
-.Xr intro 4 ,
-.Xr usb 4 ,
-.Xr add_true_randomness 9
-.Sh HISTORY
-The
-.Nm
-driver first appeared in
-.Ox 5.7 .
-.Sh AUTHORS
-The
-.Nm
-driver was written by
-.An Sean Levy Aq Mt [email protected] .
Index: share/man/man4/urng.4
===================================================================
RCS file: share/man/man4/urng.4
diff -N share/man/man4/urng.4
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ share/man/man4/urng.4 26 Aug 2017 20:34:54 -0000
@@ -0,0 +1,63 @@
+.\" $OpenBSD$
+.\"
+.\" Copyright (c) 2015 Sean Levy <[email protected]>
+.\" Copyright (c) 2017 Jasper Lievisse Adriaanse <[email protected]>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate$
+.Dt URNG 4
+.Os
+.Sh NAME
+.Nm urng
+.Nd USB Random Number Generator devices
+.Sh SYNOPSIS
+.Cd "urng* at uhub?"
+.Sh DESCRIPTION
+The
+.Nm
+driver provides support for various true random number generator
+(TRNG) devices connected via USB.
+.Nm
+reads raw entropy from the device at a (hardware dependent) interval
+and stirs it into the system entropy pool with
+.Xr add_true_randomness 9 .
+.Sh HARDWARE
+The following devices are supported by this driver:
+.Pp
+.Bl -tag -width "Altusmetrum"
+.It Araneus Alea II
+Capable of delivering 100kbit/sec of hardware-generated entropy.
+The product documentation states that the USB interface used by the
+Alea II is the same as that used by its predecessor the Alea I;
+theoretically this means that the Alea I should work but this has not
+been tested.
+.It Altusmetrum ChaosKey 1.0
+This device is capable of providing entropy at 10Mbit/s.
+.El
+.Sh SEE ALSO
+.Xr intro 4 ,
+.Xr usb 4 ,
+.Xr add_true_randomness 9
+.Sh HISTORY
+The
+.Nm
+driver first appeared in
+.Ox 6.2 .
+.Sh AUTHORS
+The
+.Nm
+driver was written by
+.An Aaron Bieber Aq Mt [email protected] ,
+.An Jasper Lievisse Adriaanse Aq Mt [email protected] ,
+.An Sean Levy Aq Mt [email protected] .
Index: share/man/man4/usb.4
===================================================================
RCS file: /cvs/src/share/man/man4/usb.4,v
retrieving revision 1.183
diff -u -p -r1.183 usb.4
--- share/man/man4/usb.4 22 Mar 2017 06:09:31 -0000 1.183
+++ share/man/man4/usb.4 26 Aug 2017 20:10:25 -0000
@@ -288,8 +288,6 @@ USB Mobile Broadband Interface Model (MB
.El
.Ss Miscellaneous devices
.Bl -tag -width 12n -offset ind -compact
-.It Xr ualea 4
-Araneus Alea II USB TRNG
.It Xr uberry 4
Research In Motion BlackBerry
.It Xr ugen 4
@@ -304,6 +302,8 @@ Moonbase Otago OneRNG TRNG
Maxim/Dallas DS2490 USB 1-Wire adapter
.It Xr upl 4
Prolific based host-to-host adapters
+.It Xr urng 4
+USB Random Number Generator devices
.It Xr usps 4
USPS composite AC power and temperature sensor
.It Xr uts 4
Index: sys/arch/alpha/conf/GENERIC
===================================================================
RCS file: /cvs/src/sys/arch/alpha/conf/GENERIC,v
retrieving revision 1.259
diff -u -p -r1.259 GENERIC
--- sys/arch/alpha/conf/GENERIC 31 Aug 2016 12:46:45 -0000 1.259
+++ sys/arch/alpha/conf/GENERIC 26 Aug 2017 19:43:23 -0000
@@ -62,7 +62,7 @@ usb* at ohci?
# USB devices
uhub* at usb? # USB Hubs
uhub* at uhub? # USB Hubs
-ualea* at uhub? # Araneus Alea II TRNG
+urng* at uhub? # USB Random Number Generator
uonerng* at uhub? # Moonbase Otago OneRNG
umodem* at uhub? # USB Modems/Serial
ucom* at umodem?
Index: sys/arch/amd64/conf/GENERIC
===================================================================
RCS file: /cvs/src/sys/arch/amd64/conf/GENERIC,v
retrieving revision 1.444
diff -u -p -r1.444 GENERIC
--- sys/arch/amd64/conf/GENERIC 14 Jun 2017 22:35:43 -0000 1.444
+++ sys/arch/amd64/conf/GENERIC 26 Aug 2017 19:43:21 -0000
@@ -204,8 +204,9 @@ usb* at ohci?
# USB devices
uhub* at usb? # USB Hubs
uhub* at uhub? # USB Hubs
-ualea* at uhub? # Araneus Alea II TRNG
+urng* at uhub? # USB Random Number Generator
uonerng* at uhub? # Moonbase Otago OneRNG
+urng* at uhub? # USB Random Number Generator
umodem* at uhub? # USB Modems/Serial
ucom* at umodem?
uvisor* at uhub? # Handspring Visor
Index: sys/arch/arm64/conf/GENERIC
===================================================================
RCS file: /cvs/src/sys/arch/arm64/conf/GENERIC,v
retrieving revision 1.35
diff -u -p -r1.35 GENERIC
--- sys/arch/arm64/conf/GENERIC 25 Aug 2017 10:29:54 -0000 1.35
+++ sys/arch/arm64/conf/GENERIC 26 Aug 2017 19:43:17 -0000
@@ -133,7 +133,7 @@ usb* at xhci?
# USB devices
uhub* at usb? # USB Hubs
uhub* at uhub? # USB Hubs
-ualea* at uhub? # Araneus Alea II TRNG
+urng* at uhub? # USB Random Number Generator
uonerng* at uhub? # Moonbase Otago OneRNG
umodem* at uhub? # USB Modems/Serial
ucom* at umodem?
Index: sys/arch/armv7/conf/GENERIC
===================================================================
RCS file: /cvs/src/sys/arch/armv7/conf/GENERIC,v
retrieving revision 1.88
diff -u -p -r1.88 GENERIC
--- sys/arch/armv7/conf/GENERIC 14 Aug 2017 21:46:02 -0000 1.88
+++ sys/arch/armv7/conf/GENERIC 26 Aug 2017 19:43:14 -0000
@@ -180,7 +180,7 @@ usb* at ehci? flags 0x1
# USB devices
uhub* at usb? # USB Hubs
uhub* at uhub? # USB Hubs
-ualea* at uhub? # Araneus Alea II TRNG
+urng* at uhub? # USB Random Number Generator
uonerng* at uhub? # Moonbase Otago OneRNG
umodem* at uhub? # USB Modems/Serial
ucom* at umodem?
Index: sys/arch/hppa/conf/GENERIC
===================================================================
RCS file: /cvs/src/sys/arch/hppa/conf/GENERIC,v
retrieving revision 1.173
diff -u -p -r1.173 GENERIC
--- sys/arch/hppa/conf/GENERIC 4 Sep 2016 10:22:06 -0000 1.173
+++ sys/arch/hppa/conf/GENERIC 26 Aug 2017 19:43:10 -0000
@@ -120,7 +120,7 @@ ure* at uhub? # Realtek RTL8152 based
a
rsu* at uhub? # Realtek RTL8188SU/RTL8191SU/RTL8192SU
# untested USB devices
-ualea* at uhub? # Araneus Alea II TRNG
+urng* at uhub? # USB Random Number Generator
uonerng* at uhub? # Moonbase Otago OneRNG
umodem* at uhub? # USB Modems/Serial
ucom* at umodem?
Index: sys/arch/i386/conf/GENERIC
===================================================================
RCS file: /cvs/src/sys/arch/i386/conf/GENERIC,v
retrieving revision 1.828
diff -u -p -r1.828 GENERIC
--- sys/arch/i386/conf/GENERIC 18 May 2017 13:29:32 -0000 1.828
+++ sys/arch/i386/conf/GENERIC 26 Aug 2017 19:43:08 -0000
@@ -228,7 +228,7 @@ usb* at ohci?
# USB devices
uhub* at usb? # USB Hubs
uhub* at uhub? # USB Hubs
-ualea* at uhub? # Araneus Alea II TRNG
+urng* at uhub? # USB Random Number Generator
uonerng* at uhub? # Moonbase Otago OneRNG
umodem* at uhub? # USB Modems/Serial
ucom* at umodem?
Index: sys/arch/landisk/conf/GENERIC
===================================================================
RCS file: /cvs/src/sys/arch/landisk/conf/GENERIC,v
retrieving revision 1.51
diff -u -p -r1.51 GENERIC
--- sys/arch/landisk/conf/GENERIC 28 Jun 2016 04:41:37 -0000 1.51
+++ sys/arch/landisk/conf/GENERIC 26 Aug 2017 19:43:05 -0000
@@ -86,7 +86,7 @@ usb* at ohci?
# USB Hubs
uhub* at usb?
uhub* at uhub? port ? configuration ? interface ?
-ualea* at uhub? # Araneus Alea II TRNG
+urng* at uhub? # USB Random Number Generator
uonerng* at uhub? # Moonbase Otago OneRNG
umodem* at uhub? # USB Modems/Serial
ucom* at umodem?
Index: sys/arch/loongson/conf/GENERIC
===================================================================
RCS file: /cvs/src/sys/arch/loongson/conf/GENERIC,v
retrieving revision 1.55
diff -u -p -r1.55 GENERIC
--- sys/arch/loongson/conf/GENERIC 21 May 2017 13:00:53 -0000 1.55
+++ sys/arch/loongson/conf/GENERIC 26 Aug 2017 19:43:01 -0000
@@ -119,7 +119,7 @@ usb* at ehci?
# USB devices
uhub* at usb? # USB Hubs
uhub* at uhub? # USB Hubs
-ualea* at uhub? # Araneus Alea II TRNG
+urng* at uhub? # USB Random Number Generator
uonerng* at uhub? # Moonbase Otago OneRNG
umodem* at uhub? # USB Modems/Serial
ucom* at umodem?
Index: sys/arch/macppc/conf/GENERIC
===================================================================
RCS file: /cvs/src/sys/arch/macppc/conf/GENERIC,v
retrieving revision 1.260
diff -u -p -r1.260 GENERIC
--- sys/arch/macppc/conf/GENERIC 12 Sep 2016 08:28:44 -0000 1.260
+++ sys/arch/macppc/conf/GENERIC 26 Aug 2017 19:42:55 -0000
@@ -207,7 +207,7 @@ usb* at ehci?
# USB devices
uhub* at usb? # USB Hubs
uhub* at uhub? # USB Hubs
-ualea* at uhub? # Araneus Alea II TRNG
+urng* at uhub? # USB Random Number Generator
uonerng* at uhub? # Moonbase Otago OneRNG
umodem* at uhub? # USB Modems/Serial
ucom* at umodem?
Index: sys/arch/octeon/conf/GENERIC
===================================================================
RCS file: /cvs/src/sys/arch/octeon/conf/GENERIC,v
retrieving revision 1.39
diff -u -p -r1.39 GENERIC
--- sys/arch/octeon/conf/GENERIC 1 Aug 2017 16:18:11 -0000 1.39
+++ sys/arch/octeon/conf/GENERIC 26 Aug 2017 19:42:50 -0000
@@ -91,7 +91,7 @@ usb* at xhci?
# USB devices
uhub* at usb? # USB Hubs
uhub* at uhub? # USB Hubs
-ualea* at uhub? # Araneus Alea II TRNG
+urng* at uhub? # USB Random Number Generator
uonerng* at uhub? # Moonbase Otago OneRNG
umodem* at uhub? # USB Modems/Serial
ucom* at umodem?
Index: sys/arch/sparc64/conf/GENERIC
===================================================================
RCS file: /cvs/src/sys/arch/sparc64/conf/GENERIC,v
retrieving revision 1.306
diff -u -p -r1.306 GENERIC
--- sys/arch/sparc64/conf/GENERIC 26 Jan 2017 12:18:55 -0000 1.306
+++ sys/arch/sparc64/conf/GENERIC 26 Aug 2017 19:42:27 -0000
@@ -175,7 +175,7 @@ usb* at xhci?
# USB devices
uhub* at usb? # USB Hubs
uhub* at uhub? # USB Hubs
-ualea* at uhub? # Araneus Alea II TRNG
+urng* at uhub? # USB Random Number Generator
uonerng* at uhub? # Moonbase Otago OneRNG
umodem* at uhub? # USB Modems/Serial
ucom* at umodem?
Index: sys/dev/usb/files.usb
===================================================================
RCS file: /cvs/src/sys/dev/usb/files.usb,v
retrieving revision 1.131
diff -u -p -r1.131 files.usb
--- sys/dev/usb/files.usb 12 Sep 2016 08:12:06 -0000 1.131
+++ sys/dev/usb/files.usb 26 Aug 2017 19:40:34 -0000
@@ -167,15 +167,15 @@ attach uoakv at uhidbus
file dev/usb/uoakv.c uoakv
# Misc
-# Araneus Alea II TRNG
-device ualea
-attach ualea at uhub
-file dev/usb/ualea.c ualea
-
# Moonbase Otago OneRNG TRNG
device uonerng
attach uonerng at uhub
file dev/usb/uonerng.c uonerng
+
+# USB Random Number Generator
+device urng
+attach urng at uhub
+file dev/usb/urng.c
# Gude Expert mouseCLOCK DCF77 time signal station receiver
device udcf
Index: sys/dev/usb/ualea.c
===================================================================
RCS file: sys/dev/usb/ualea.c
diff -N sys/dev/usb/ualea.c
--- sys/dev/usb/ualea.c 17 Apr 2015 07:17:51 -0000 1.2
+++ /dev/null 1 Jan 1970 00:00:00 -0000
@@ -1,195 +0,0 @@
-/* $OpenBSD: ualea.c,v 1.2 2015/04/17 07:17:51 mpi Exp $ */
-/*
- * Copyright (c) 2006 Alexander Yurchenko <[email protected]>
- * Copyright (c) 2007 Marc Balmer <[email protected]>
- * Copyright (C) 2015 Sean Levy <[email protected]>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-/*
- * Alea II TRNG. Produces 100kbit/sec of entropy by black magic
- *
- * Product information in English can be found here:
- * http://www.araneus.fi/products/alea2/en/
- */
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/device.h>
-#include <sys/timeout.h>
-
-#include <dev/usb/usb.h>
-#include <dev/usb/usbdi.h>
-#include <dev/usb/usbdevs.h>
-
-#include <dev/rndvar.h>
-
-#define ALEA_IFACE 0
-#define ALEA_ENDPOINT 1
-#define ALEA_MSECS 100
-#define ALEA_READ_TIMEOUT 5000
-#define ALEA_BUFSIZ 128
-
-#define DEVNAME(_sc) ((_sc)->sc_dev.dv_xname)
-
-struct ualea_softc {
- struct device sc_dev;
- struct usbd_device *sc_udev;
- struct usbd_pipe *sc_pipe;
- struct timeout sc_timeout;
- struct usb_task sc_task;
- struct usbd_xfer *sc_xfer;
- int *sc_buf;
-};
-
-int ualea_match(struct device *, void *, void *);
-void ualea_attach(struct device *, struct device *, void *);
-int ualea_detach(struct device *, int);
-void ualea_task(void *);
-void ualea_timeout(void *);
-
-struct cfdriver ualea_cd = {
- NULL, "ualea", DV_DULL
-};
-
-const struct cfattach ualea_ca = {
- sizeof(struct ualea_softc), ualea_match, ualea_attach, ualea_detach
-};
-
-int
-ualea_match(struct device *parent, void *match, void *aux)
-{
- struct usb_attach_arg *uaa = aux;
-
- if (uaa->iface == NULL)
- return (UMATCH_NONE);
- if ((uaa->vendor == USB_VENDOR_ARANEUS) &&
- (uaa->product == USB_PRODUCT_ARANEUS_ALEA) &&
- (uaa->ifaceno == ALEA_IFACE))
- return (UMATCH_VENDOR_PRODUCT);
- return (UMATCH_NONE);
-}
-
-void
-ualea_attach(struct device *parent, struct device *self, void *aux)
-{
- struct ualea_softc *sc = (struct ualea_softc *)self;
- struct usb_attach_arg *uaa = aux;
- usb_interface_descriptor_t *id;
- usb_endpoint_descriptor_t *ed;
- int ep_ibulk = -1;
- usbd_status error;
- int i;
-
- sc->sc_udev = uaa->device;
- id = usbd_get_interface_descriptor(uaa->iface);
- for (i = 0; i < id->bNumEndpoints; i++) {
- ed = usbd_interface2endpoint_descriptor(uaa->iface, i);
- if (ed == NULL) {
- printf("%s: failed to get endpoint %d descriptor\n",
- DEVNAME(sc), i);
- return;
- }
- if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
- UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK &&
- UE_GET_ADDR(ed->bEndpointAddress) == ALEA_ENDPOINT) {
- ep_ibulk = ed->bEndpointAddress;
- break;
- }
- }
- if (ep_ibulk == -1) {
- printf("%s: missing endpoint\n", DEVNAME(sc));
- return;
- }
- error = usbd_open_pipe(uaa->iface, ep_ibulk, USBD_EXCLUSIVE_USE,
- &sc->sc_pipe);
- if (error) {
- printf("%s: failed to open bulk-in pipe: %s\n",
- DEVNAME(sc), usbd_errstr(error));
- return;
- }
- sc->sc_xfer = usbd_alloc_xfer(sc->sc_udev);
- if (sc->sc_xfer == NULL) {
- printf("%s: could not alloc xfer\n", DEVNAME(sc));
- return;
- }
- sc->sc_buf = usbd_alloc_buffer(sc->sc_xfer, ALEA_BUFSIZ);
- if (sc->sc_buf == NULL) {
- printf("%s: could not alloc %d-byte buffer\n", DEVNAME(sc),
- ALEA_BUFSIZ);
- return;
- }
- usb_init_task(&sc->sc_task, ualea_task, sc, USB_TASK_TYPE_GENERIC);
- timeout_set(&sc->sc_timeout, ualea_timeout, sc);
- usb_add_task(sc->sc_udev, &sc->sc_task);
-}
-
-int
-ualea_detach(struct device *self, int flags)
-{
- struct ualea_softc *sc = (struct ualea_softc *)self;
-
- usb_rem_task(sc->sc_udev, &sc->sc_task);
- if (timeout_initialized(&sc->sc_timeout))
- timeout_del(&sc->sc_timeout);
- if (sc->sc_xfer)
- usbd_free_xfer(sc->sc_xfer);
- if (sc->sc_pipe != NULL)
- usbd_close_pipe(sc->sc_pipe);
-
- return (0);
-}
-
-void
-ualea_task(void *arg)
-{
- struct ualea_softc *sc = (struct ualea_softc *)arg;
- usbd_status error;
- u_int32_t len, i;
-
- usbd_setup_xfer(sc->sc_xfer, sc->sc_pipe, NULL, sc->sc_buf,
- ALEA_BUFSIZ, USBD_SHORT_XFER_OK | USBD_SYNCHRONOUS,
- ALEA_READ_TIMEOUT, NULL);
- error = usbd_transfer(sc->sc_xfer);
- if (error) {
- printf("%s: xfer failed: %s\n", DEVNAME(sc),
- usbd_errstr(error));
- goto bail;
- }
- usbd_get_xfer_status(sc->sc_xfer, NULL, NULL, &len, NULL);
- if (len < sizeof(int)) {
- printf("%s: xfer too short (%u bytes) - dropping\n",
- DEVNAME(sc), len);
- goto bail;
- }
- len /= sizeof(int);
- /*
- * A random(|ness) koan:
- * children chug entropy like thirsty rhinos
- * surfing at the mall
- * privacy died in their hands
- */
- for (i = 0; i < len; i++)
- add_true_randomness(sc->sc_buf[i]);
-bail:
- timeout_add_msec(&sc->sc_timeout, ALEA_MSECS);
-}
-
-void
-ualea_timeout(void *arg)
-{
- struct ualea_softc *sc = arg;
-
- usb_add_task(sc->sc_udev, &sc->sc_task);
-}
Index: sys/dev/usb/urng.c
===================================================================
RCS file: sys/dev/usb/urng.c
diff -N sys/dev/usb/urng.c
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ sys/dev/usb/urng.c 26 Aug 2017 20:19:10 -0000
@@ -0,0 +1,240 @@
+/* $OpenBSD$ */
+
+/*
+ * Copyright (c) 2006 Alexander Yurchenko <[email protected]>
+ * Copyright (c) 2007 Marc Balmer <[email protected]>
+ * Copyright (C) 2015 Sean Levy <[email protected]>
+ * Copyright (c) 2017 Aaron Bieber <[email protected]>
+ * Copyright (c) 2017 Jasper Lievisse Adriaanse <[email protected]>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ * Universal TRNG driver for a collection of TRNG devices:
+ * - ChaosKey TRNG
+ * http://altusmetrum.org/ChaosKey/
+ * - Alea II TRNG. Produces 100kbit/sec of entropy by black magic
+ * http://www.araneus.fi/products/alea2/en/
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/device.h>
+#include <sys/timeout.h>
+
+#include <dev/usb/usb.h>
+#include <dev/usb/usbdi.h>
+#include <dev/usb/usbdevs.h>
+
+#include <dev/rndvar.h>
+
+#define DEVNAME(_sc) ((_sc)->sc_dev.dv_xname)
+
+#define URNG_DEBUG 1
+#ifdef URNG_DEBUG
+#define DPRINTF(x) printf x
+#else
+#define DPRINTF(x)
+#endif
+
+struct urng_chip {
+ int bufsiz;
+ int endpoint;
+ int iface;
+ int msecs;
+ int read_timeout;
+};
+
+struct urng_softc {
+ struct device sc_dev;
+ struct usbd_device *sc_udev;
+ struct usbd_pipe *sc_pipe;
+ struct timeout sc_timeout;
+ struct usb_task sc_task;
+ struct usbd_xfer *sc_xfer;
+ struct urng_chip sc_chip;
+ int *sc_buf;
+};
+
+int urng_match(struct device *, void *, void *);
+void urng_attach(struct device *, struct device *, void *);
+int urng_detach(struct device *, int);
+void urng_task(void *);
+void urng_timeout(void *);
+
+struct cfdriver urng_cd = {
+ NULL, "urng", DV_DULL
+};
+
+const struct cfattach urng_ca = {
+ sizeof(struct urng_softc), urng_match, urng_attach, urng_detach
+};
+
+struct urng_type {
+ struct usb_devno urng_dev;
+ struct urng_chip urng_chip;
+};
+
+static const struct urng_type urng_devs[] = {
+ { { USB_VENDOR_OPENMOKO2, USB_PRODUCT_OPENMOKO2_CHAOSKEY }, {64, 6, 0,
100, 5000} },
+ { { USB_VENDOR_ARANEUS, USB_PRODUCT_ARANEUS_ALEA }, {128, 1, 0, 100,
5000} },
+};
+#define urng_lookup(v, p) ((struct urng_type *)usb_lookup(urng_devs, v, p))
+
+int
+urng_match(struct device *parent, void *match, void *aux)
+{
+ struct usb_attach_arg *uaa = aux;
+
+ if (uaa->iface == NULL)
+ return (UMATCH_NONE);
+
+ if (urng_lookup(uaa->vendor, uaa->product) != NULL)
+ return (UMATCH_VENDOR_PRODUCT);
+
+ return (UMATCH_NONE);
+}
+
+void
+urng_attach(struct device *parent, struct device *self, void *aux)
+{
+ struct urng_softc *sc = (struct urng_softc *)self;
+ struct usb_attach_arg *uaa = aux;
+ usb_interface_descriptor_t *id;
+ usb_endpoint_descriptor_t *ed;
+ int ep_ibulk = -1;
+ usbd_status error;
+ int i;
+
+ sc->sc_udev = uaa->device;
+ sc->sc_chip.bufsiz = urng_lookup(uaa->vendor,
uaa->product)->urng_chip.bufsiz;
+ sc->sc_chip.endpoint = urng_lookup(uaa->vendor,
uaa->product)->urng_chip.endpoint;
+ sc->sc_chip.iface = urng_lookup(uaa->vendor,
uaa->product)->urng_chip.iface;
+ sc->sc_chip.msecs = urng_lookup(uaa->vendor,
uaa->product)->urng_chip.msecs;
+ sc->sc_chip.read_timeout = urng_lookup(uaa->vendor,
uaa->product)->urng_chip.read_timeout;
+
+ DPRINTF(("%s: bufsiz: %d, endpoint: %d iface: %d, msecs: %d,
read_timeout: %d\n",
+ DEVNAME(sc),
+ sc->sc_chip.bufsiz,
+ sc->sc_chip.endpoint,
+ sc->sc_chip.iface,
+ sc->sc_chip.msecs,
+ sc->sc_chip.read_timeout));
+
+ id = usbd_get_interface_descriptor(uaa->iface);
+ for (i = 0; i < id->bNumEndpoints; i++) {
+ ed = usbd_interface2endpoint_descriptor(uaa->iface, i);
+ if (ed == NULL) {
+ printf("%s: failed to get endpoint %d descriptor\n",
+ DEVNAME(sc), i);
+ return;
+ }
+ if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
+ UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK &&
+ UE_GET_ADDR(ed->bEndpointAddress) == sc->sc_chip.endpoint) {
+ ep_ibulk = ed->bEndpointAddress;
+ break;
+ }
+ }
+
+ if (ep_ibulk == -1) {
+ printf("%s: missing endpoint\n", DEVNAME(sc));
+ return;
+ }
+
+ error = usbd_open_pipe(uaa->iface, ep_ibulk, USBD_EXCLUSIVE_USE,
+ &sc->sc_pipe);
+ if (error) {
+ printf("%s: failed to open bulk-in pipe: %s\n",
+ DEVNAME(sc), usbd_errstr(error));
+ return;
+ }
+
+ sc->sc_xfer = usbd_alloc_xfer(sc->sc_udev);
+ if (sc->sc_xfer == NULL) {
+ printf("%s: could not alloc xfer\n", DEVNAME(sc));
+ return;
+ }
+
+ sc->sc_buf = usbd_alloc_buffer(sc->sc_xfer, sc->sc_chip.bufsiz);
+ if (sc->sc_buf == NULL) {
+ printf("%s: could not alloc %d-byte buffer\n", DEVNAME(sc),
+ sc->sc_chip.bufsiz);
+ return;
+ }
+
+ usb_init_task(&sc->sc_task, urng_task, sc, USB_TASK_TYPE_GENERIC);
+ timeout_set(&sc->sc_timeout, urng_timeout, sc);
+ usb_add_task(sc->sc_udev, &sc->sc_task);
+
+ return;
+}
+
+int
+urng_detach(struct device *self, int flags)
+{
+ struct urng_softc *sc = (struct urng_softc *)self;
+
+ usb_rem_task(sc->sc_udev, &sc->sc_task);
+ if (timeout_initialized(&sc->sc_timeout))
+ timeout_del(&sc->sc_timeout);
+ if (sc->sc_xfer)
+ usbd_free_xfer(sc->sc_xfer);
+ if (sc->sc_pipe != NULL)
+ usbd_close_pipe(sc->sc_pipe);
+
+ return (0);
+}
+
+
+void
+urng_task(void *arg)
+{
+ struct urng_softc *sc = (struct urng_softc *)arg;
+ usbd_status error;
+ u_int32_t len, i;
+
+ usbd_setup_xfer(sc->sc_xfer, sc->sc_pipe, NULL, sc->sc_buf,
+ sc->sc_chip.bufsiz, USBD_SHORT_XFER_OK | USBD_SYNCHRONOUS,
+ sc->sc_chip.read_timeout, NULL);
+
+ error = usbd_transfer(sc->sc_xfer);
+ if (error) {
+ printf("%s: xfer failed: %s\n", DEVNAME(sc),
+ usbd_errstr(error));
+ goto bail;
+ }
+
+ usbd_get_xfer_status(sc->sc_xfer, NULL, NULL, &len, NULL);
+ if (len < sizeof(int)) {
+ printf("%s: xfer too short (%u bytes) - dropping\n",
+ DEVNAME(sc), len);
+ goto bail;
+ }
+
+ len /= sizeof(int);
+ for (i = 0; i < len; i++) {
+ add_true_randomness(sc->sc_buf[i]);
+ }
+bail:
+ timeout_add_msec(&sc->sc_timeout, sc->sc_chip.msecs);
+}
+
+void
+urng_timeout(void *arg)
+{
+ struct urng_softc *sc = arg;
+
+ usb_add_task(sc->sc_udev, &sc->sc_task);
+}
--
jasper
