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c749ba912e
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>
47 lines
1.3 KiB
C
47 lines
1.3 KiB
C
/*
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* Copyright (C) 2004,2007,2008 IBM Corporation
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*
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* Authors:
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* Leendert van Doorn <leendert@watson.ibm.com>
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* Dave Safford <safford@watson.ibm.com>
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* Reiner Sailer <sailer@watson.ibm.com>
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* Kylene Hall <kjhall@us.ibm.com>
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* Debora Velarde <dvelarde@us.ibm.com>
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*
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* Maintained by: <tpmdd_devel@lists.sourceforge.net>
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*
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* Device driver for TCG/TCPA TPM (trusted platform module).
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* Specifications at www.trustedcomputinggroup.org
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation, version 2 of the
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* License.
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*
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*/
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#ifndef __LINUX_TPM_H__
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#define __LINUX_TPM_H__
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/*
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* Chip num is this value or a valid tpm idx
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*/
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#define TPM_ANY_NUM 0xFFFF
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#if defined(CONFIG_TCG_TPM) || defined(CONFIG_TCG_TPM_MODULE)
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extern int tpm_pcr_read(u32 chip_num, int pcr_idx, u8 *res_buf);
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extern int tpm_pcr_extend(u32 chip_num, int pcr_idx, const u8 *hash);
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extern int tpm_send(u32 chip_num, void *cmd, size_t buflen);
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#else
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static inline int tpm_pcr_read(u32 chip_num, int pcr_idx, u8 *res_buf) {
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return -ENODEV;
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}
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static inline int tpm_pcr_extend(u32 chip_num, int pcr_idx, const u8 *hash) {
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return -ENODEV;
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}
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static inline int tpm_send(u32 chip_num, void *cmd, size_t buflen) {
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return -ENODEV;
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}
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#endif
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#endif
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