Add tpm(4) driver for Trusted Platform Module.

You may want to look at http://bsssd.sourceforge.net/ .

Submitted by: Hans-Joerg Hoexer <Hans-Joerg_Hoexer@genua.de>

share/man/man4/tpm.4

@@ -0,0 +1,74 @@
+.\"
+.\" Copyright (c) 2010 Hans-J
+.\"
+.\" 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.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd March 8, 2010
+.Dt TPM 4
+.Os
+.Sh NAME
+.Nm tpm
+.Nd Trusted Platform Module
+.Sh SYNOPSIS
+.Cd "device tpm"
+.Pp
+In
+.Pa /boot/device.hints :
+.Cd hint.tpm.0.at="isa"
+.Cd hint.tpm.0.maddr="0xfed40000"
+.Cd hint.tpm.0.msize="0x5000"
+.Cd hint.tpm.1.at="isa"
+.Cd hint.tpm.1.maddr="0xfed40000"
+.Cd hint.tpm.1.msize="0x1000"
+.Sh DESCRIPTION
+The
+.Nm
+driver provides support for various trusted platfrom modules (TPM) that can
+store cryptographic keys. 
+.Pp
+Supported modules:
+.Pp
+.Bl -bullet -compact -offset indent
+.It
+Atmel 97SC3203
+.It
+Broadcom BCM0102
+.It
+Infineon IFX SLD 9630 TT 1.1 and IFX SLB 9635 TT 1.2
+.It
+Intel INTC0102
+.It
+Sinosun SNS SSX35
+.It
+STM ST19WP18
+.It
+Winbond WEC WPCT200
+.El
+.Pp
+The driver can be configured to use an IRQ by providing a free ISA
+interrupt vector in
+.Pa /boot/device.hints .
+.Sh SEE ALSO
+.Xr intro 4 ,
+.Xr files.conf 5,
+.Xr config 8
+.Sh AUTHORS
+.An -nosplit
+The
+.Nm
+driver was written by
+.An Michael Shalayeff
+and
+.An Hans-Joerg Hoexer .

sys/conf/files.i386

@@ -231,6 +231,9 @@ dev/syscons/scterm-teken.c	optional sc
 dev/syscons/scvesactl.c		optional sc vga vesa
 dev/syscons/scvgarndr.c		optional sc vga
 dev/syscons/scvtb.c		optional sc
+dev/tpm/tpm.c			optional tpm
+dev/tpm/tpm_acpi.c		optional tpm acpi
+dev/tpm/tpm_isa.c		optional tpm isa
 dev/uart/uart_cpu_i386.c	optional uart
 dev/acpica/acpi_if.m		standard
 dev/acpi_support/acpi_wmi_if.m	standard

sys/dev/tpm/tpm_acpi.c

@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2008, 2009 Michael Shalayeff
+ * Copyright (c) 2009, 2010 Hans-Joerg Hoexer
+ * All rights reserved.
+ *
+ * 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 MIND, 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.
+ */
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/malloc.h>
+#include <sys/proc.h>
+
+#include <sys/module.h>
+#include <sys/conf.h>
+#include <sys/uio.h>
+#include <sys/bus.h>
+
+#include <machine/bus.h>
+#include <sys/rman.h>
+#include <machine/resource.h>
+
+#include <machine/md_var.h>
+
+#include <isa/isareg.h>
+#include <isa/isavar.h>
+#include "tpmvar.h"
+
+#include "opt_acpi.h"
+#include <contrib/dev/acpica/include/acpi.h>
+#include <contrib/dev/acpica/include/accommon.h>
+#include <dev/acpica/acpivar.h>
+
+
+
+char *tpm_ids[] = {"ATM1200",  "BCM0102", "INTC0102", "SNO3504", "WEC1000",
+    "PNP0C31", NULL};
+
+static int
+tpm_acpi_probe(device_t dev)
+{
+	if (ACPI_ID_PROBE(device_get_parent(dev), dev, tpm_ids) != NULL) {
+		device_set_desc(dev, "Trusted Platform Module");
+		return BUS_PROBE_DEFAULT;
+	}
+	
+	return ENXIO;
+}
+
+static device_method_t tpm_acpi_methods[] = {
+#if 0
+	/*In some case, TPM existance is found only in TPCA header*/
+	DEVMETHOD(device_identify,	tpm_acpi_identify),
+#endif
+
+	DEVMETHOD(device_probe,		tpm_acpi_probe),
+	DEVMETHOD(device_attach,	tpm_attach),
+	DEVMETHOD(device_detach,	tpm_detach),
+	DEVMETHOD(device_suspend,	tpm_suspend),
+	DEVMETHOD(device_resume,	tpm_resume),
+	{ 0, 0 }
+};
+static driver_t tpm_acpi_driver = {
+	"tpm", tpm_acpi_methods, sizeof(struct tpm_softc),
+};
+
+devclass_t tpm_devclass;
+DRIVER_MODULE(tpm, acpi, tpm_acpi_driver, tpm_devclass, 0, 0);

sys/dev/tpm/tpm_isa.c

@@ -0,0 +1,96 @@
+/*
+ * Copyright (c) 2008, 2009 Michael Shalayeff
+ * Copyright (c) 2009, 2010 Hans-Joerg Hoexer
+ * All rights reserved.
+ *
+ * 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 MIND, 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/malloc.h>
+#include <sys/proc.h>
+
+#ifdef __FreeBSD__
+#include <sys/module.h>
+#include <sys/conf.h>
+#include <sys/uio.h>
+#include <sys/bus.h>
+
+#include <machine/bus.h>
+#include <sys/rman.h>
+#include <machine/resource.h>
+
+#include <machine/md_var.h>
+
+#include <isa/isareg.h>
+#include <isa/isavar.h>
+#else
+#include <sys/device.h>
+
+#include <machine/cpu.h>
+#include <machine/bus.h>
+#include <machine/intr.h>
+#include <machine/conf.h>
+
+#include <dev/isa/isareg.h>
+#include <dev/isa/isavar.h>
+#endif
+#include "tpmvar.h"
+
+static int
+tpm_isa_probe(device_t dev)
+{
+	bus_space_tag_t iot;
+	bus_space_handle_t ioh;
+	struct resource *mem_res;
+	int rv, mem_rid;
+
+	mem_rid = 0;
+	mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &mem_rid,
+	    RF_ACTIVE);
+	if (mem_res == NULL)
+		return (ENXIO);
+	iot = rman_get_bustag(mem_res);
+	ioh = rman_get_bushandle(mem_res);
+
+	if ((rv = tpm_tis12_probe(iot, ioh)))
+		device_set_desc(dev, "Trusted Platform Module");
+
+	bus_release_resource(dev, SYS_RES_MEMORY, mem_rid, mem_res);
+	return rv ? 0 : ENXIO;
+}
+
+static device_method_t tpm_methods[] = {
+#if 0
+	DEVMETHOD(device_identify,	tpm_identify),
+#endif
+	DEVMETHOD(device_probe,		tpm_isa_probe),
+	DEVMETHOD(device_attach,	tpm_attach),
+	DEVMETHOD(device_detach,	tpm_detach),
+	DEVMETHOD(device_suspend,	tpm_suspend),
+	DEVMETHOD(device_resume,	tpm_resume),
+	{ 0, 0 }
+};
+
+static driver_t tpm_driver = {
+	"tpm", tpm_methods, sizeof(struct tpm_softc),
+};
+
+static devclass_t tpm_devclass;
+
+DRIVER_MODULE(tpm, isa, tpm_driver, tpm_devclass, 0, 0);

sys/dev/tpm/tpmvar.h

@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2008, 2009 Michael Shalayeff
+ * Copyright (c) 2009, 2010 Hans-Joerg Hoexer
+ * All rights reserved.
+ *
+ * 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 MIND, 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.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _TPMVAR_H
+#define _TPMVAR_H
+
+struct tpm_softc {
+#ifndef __FreeBSD__
+	struct device sc_dev;
+#endif
+	void *sc_ih;
+
+	int	(*sc_init)(struct tpm_softc *, int, const char *);
+	int	(*sc_start)(struct tpm_softc *, int);
+	int	(*sc_read)(struct tpm_softc *, void *, int, size_t *, int);
+	int	(*sc_write)(struct tpm_softc *, void *, int);
+	int	(*sc_end)(struct tpm_softc *, int, int);
+
+	bus_space_tag_t sc_bt, sc_batm;
+	bus_space_handle_t sc_bh, sc_bahm;
+
+	u_int32_t sc_devid;
+	u_int32_t sc_rev;
+	u_int32_t sc_stat;
+	u_int32_t sc_capabilities;
+
+	int sc_flags;
+#define	TPM_OPEN	0x0001
+
+	int	 sc_vector;
+#ifdef __FreeBSD__
+	void	*intr_cookie;
+	int mem_rid, irq_rid;
+	struct resource *mem_res, *irq_res;
+	struct cdev *sc_cdev;
+#endif
+
+#ifndef __FreeBSD__
+	void	*sc_powerhook;
+#endif
+	int	 sc_suspend;
+};
+
+int tpm_tis12_probe(bus_space_tag_t iot, bus_space_handle_t ioh);
+int tpm_attach(device_t dev);
+int tpm_detach(device_t dev);
+int tpm_suspend(device_t dev);
+int tpm_resume(device_t dev);
+#endif

sys/modules/Makefile

@@ -283,6 +283,7 @@ SUBDIR=	${_3dfx} \
 	ti \
 	tl \
 	tmpfs \
+	tpm \
 	trm \
 	${_twa} \
 	twe \

sys/modules/tpm/Makefile

@@ -0,0 +1,9 @@
+# $FreeBSD$
+
+.PATH:	${.CURDIR}/../../dev/tpm
+
+KMOD=	tpm
+SRCS=	tpm.c tpm_isa.c tpm_acpi.c isa_if.h opt_acpi.h acpi_if.h \
+	bus_if.h device_if.h
+
+.include <bsd.kmod.mk>