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be4c9acfe2
Implement the request_locality function. To set the locality on the backend we define vendor-specific TPM 1.2 and TPM 2 ordinals and send a command to the backend to set the locality for the next commands. To avoid recursing into requesting the locality, we set the TPM_TRANSMIT_RAW flag when calling tpm_transmit_cmd. To avoid recursing into TPM 2 space related commands, we set the space parameter to NULL. Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
54 lines
1.6 KiB
C
54 lines
1.6 KiB
C
/*
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* Definitions for the VTPM proxy driver
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* Copyright (c) 2015, 2016, IBM Corporation
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* Copyright (C) 2016 Intel Corporation
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*/
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#ifndef _UAPI_LINUX_VTPM_PROXY_H
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#define _UAPI_LINUX_VTPM_PROXY_H
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#include <linux/types.h>
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#include <linux/ioctl.h>
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/**
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* enum vtpm_proxy_flags - flags for the proxy TPM
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* @VTPM_PROXY_FLAG_TPM2: the proxy TPM uses TPM 2.0 protocol
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*/
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enum vtpm_proxy_flags {
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VTPM_PROXY_FLAG_TPM2 = 1,
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};
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/**
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* struct vtpm_proxy_new_dev - parameter structure for the
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* %VTPM_PROXY_IOC_NEW_DEV ioctl
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* @flags: flags for the proxy TPM
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* @tpm_num: index of the TPM device
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* @fd: the file descriptor used by the proxy TPM
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* @major: the major number of the TPM device
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* @minor: the minor number of the TPM device
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*/
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struct vtpm_proxy_new_dev {
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__u32 flags; /* input */
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__u32 tpm_num; /* output */
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__u32 fd; /* output */
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__u32 major; /* output */
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__u32 minor; /* output */
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};
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#define VTPM_PROXY_IOC_NEW_DEV _IOWR(0xa1, 0x00, struct vtpm_proxy_new_dev)
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/* vendor specific commands to set locality */
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#define TPM2_CC_SET_LOCALITY 0x20001000
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#define TPM_ORD_SET_LOCALITY 0x20001000
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#endif /* _UAPI_LINUX_VTPM_PROXY_H */
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