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linux-sg2042/include/linux/tpm.h

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TPM: integrity interface This patch adds internal kernel support for: - reading/extending a pcr value - looking up the tpm_chip for a given chip number Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com> Signed-off-by: Mimi Zohar <zohar@us.ibm.com> Signed-off-by: James Morris <jmorris@namei.org>
2009-02-03 01:23:44 +08:00
/*
* Copyright (C) 2004,2007,2008 IBM Corporation
*
* Authors:
* Leendert van Doorn <leendert@watson.ibm.com>
* Dave Safford <safford@watson.ibm.com>
* Reiner Sailer <sailer@watson.ibm.com>
* Kylene Hall <kjhall@us.ibm.com>
* Debora Velarde <dvelarde@us.ibm.com>
*
* Maintained by: <tpmdd_devel@lists.sourceforge.net>
*
* Device driver for TCG/TCPA TPM (trusted platform module).
* Specifications at www.trustedcomputinggroup.org
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation, version 2 of the
* License.
*
*/
#ifndef __LINUX_TPM_H__
#define __LINUX_TPM_H__
/*
* Chip num is this value or a valid tpm idx
*/
#define TPM_ANY_NUM 0xFFFF
tpm: fix header for modular build Fix build for TCG_TPM=m. Header file doesn't handle this and incorrectly builds stubs. drivers/char/tpm/tpm.c:720: error: redefinition of 'tpm_pcr_read' include/linux/tpm.h:35: error:previous definition of 'tpm_pcr_read' was here drivers/char/tpm/tpm.c:752: error: redefinition of 'tpm_pcr_extend' include/linux/tpm.h:38: error:previous definition of 'tpm_pcr_extend' was here Repairs linux-next's commit d6ba452128178091dab7a04d54f7e66fdc32fb39 Author: Mimi Zohar <zohar@linux.vnet.ibm.com> Date: Mon Oct 26 09:26:18 2009 -0400 tpm add default function definitions Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Rajiv Andrade <srajiv@linux.vnet.ibm.com> Cc: Mimi Zohar <zohar@us.ibm.com> Cc: James Morris <jmorris@namei.org> Cc: Eric Paris <eparis@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: James Morris <jmorris@namei.org>
2009-10-29 03:26:39 +08:00
#if defined(CONFIG_TCG_TPM) || defined(CONFIG_TCG_TPM_MODULE)
TPM: integrity interface This patch adds internal kernel support for: - reading/extending a pcr value - looking up the tpm_chip for a given chip number Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com> Signed-off-by: Mimi Zohar <zohar@us.ibm.com> Signed-off-by: James Morris <jmorris@namei.org>
2009-02-03 01:23:44 +08:00
extern int tpm_pcr_read(u32 chip_num, int pcr_idx, u8 *res_buf);
extern int tpm_pcr_extend(u32 chip_num, int pcr_idx, const u8 *hash);
key: add tpm_send command Add internal kernel tpm_send() command used to seal/unseal keys. Changelog: - replaced module_put in tpm_send() with new tpm_chip_put() wrapper (suggested by David Howells) - Make tpm_send() cmd argument a 'void *' (suggested by David Howells) Signed-off-by: David Safford <safford@watson.ibm.com> Signed-off-by: Mimi Zohar <zohar@us.ibm.com> Acked-by: David Howells <dhowells@redhat.com> Acked-by: Serge E. Hallyn <serge.hallyn@canonical.com> Signed-off-by: James Morris <jmorris@namei.org>
2010-11-24 07:54:16 +08:00
extern int tpm_send(u32 chip_num, void *cmd, size_t buflen);
tpm: Move tpm_get_random api into the TPM device driver Move the tpm_get_random api from the trusted keys code into the TPM device driver itself so that other callers can make use of it. Also, change the api slightly so that the number of bytes read is returned in the call, since the TPM command can potentially return fewer bytes than requested. Acked-by: David Safford <safford@linux.vnet.ibm.com> Reviewed-by: H. Peter Anvin <hpa@linux.intel.com> Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
2012-06-08 02:47:14 +08:00
extern int tpm_get_random(u32 chip_num, u8 *data, size_t max);
tpm add default function definitions Add default tpm_pcr_read/extend function definitions required by IMA/Kconfig changes. Signed-off-by: Mimi Zohar <zohar@us.ibm.com> Reviewed-by: Eric Paris <eparis@redhat.com> Signed-off-by: James Morris <jmorris@namei.org>
2009-10-26 21:26:18 +08:00
#else
static inline int tpm_pcr_read(u32 chip_num, int pcr_idx, u8 *res_buf) {
return -ENODEV;
}
static inline int tpm_pcr_extend(u32 chip_num, int pcr_idx, const u8 *hash) {
return -ENODEV;
}
key: add tpm_send command Add internal kernel tpm_send() command used to seal/unseal keys. Changelog: - replaced module_put in tpm_send() with new tpm_chip_put() wrapper (suggested by David Howells) - Make tpm_send() cmd argument a 'void *' (suggested by David Howells) Signed-off-by: David Safford <safford@watson.ibm.com> Signed-off-by: Mimi Zohar <zohar@us.ibm.com> Acked-by: David Howells <dhowells@redhat.com> Acked-by: Serge E. Hallyn <serge.hallyn@canonical.com> Signed-off-by: James Morris <jmorris@namei.org>
2010-11-24 07:54:16 +08:00
static inline int tpm_send(u32 chip_num, void *cmd, size_t buflen) {
return -ENODEV;
}
tpm: Move tpm_get_random api into the TPM device driver Move the tpm_get_random api from the trusted keys code into the TPM device driver itself so that other callers can make use of it. Also, change the api slightly so that the number of bytes read is returned in the call, since the TPM command can potentially return fewer bytes than requested. Acked-by: David Safford <safford@linux.vnet.ibm.com> Reviewed-by: H. Peter Anvin <hpa@linux.intel.com> Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
2012-06-08 02:47:14 +08:00
static inline int tpm_get_random(u32 chip_num, u8 *data, size_t max) {
return -ENODEV;
}
TPM: integrity interface This patch adds internal kernel support for: - reading/extending a pcr value - looking up the tpm_chip for a given chip number Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com> Signed-off-by: Mimi Zohar <zohar@us.ibm.com> Signed-off-by: James Morris <jmorris@namei.org>
2009-02-03 01:23:44 +08:00
#endif
#endif