mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-21 10:43:06 +00:00
185f812c41
Sphinx expects Return: and not @return to indicate a return value.
find . -name '*.c' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;
find . -name '*.h' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
322 lines
9.3 KiB
C
322 lines
9.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* Copyright (c) 2013 The Chromium OS Authors.
|
|
* Coypright (c) 2013 Guntermann & Drunck GmbH
|
|
*/
|
|
|
|
#ifndef __TPM_API_H
|
|
#define __TPM_API_H
|
|
|
|
#include <tpm-common.h>
|
|
#include <tpm-v1.h>
|
|
#include <tpm-v2.h>
|
|
|
|
/**
|
|
* Issue a TPM_Startup command.
|
|
*
|
|
* @param dev TPM device
|
|
* @param mode TPM startup mode
|
|
* Return: return code of the operation
|
|
*/
|
|
u32 tpm_startup(struct udevice *dev, enum tpm_startup_type mode);
|
|
|
|
/**
|
|
* Issue a TPM_SelfTestFull command.
|
|
*
|
|
* @param dev TPM device
|
|
* Return: return code of the operation
|
|
*/
|
|
u32 tpm_self_test_full(struct udevice *dev);
|
|
|
|
/**
|
|
* Issue a TPM_ContinueSelfTest command.
|
|
*
|
|
* @param dev TPM device
|
|
* Return: return code of the operation
|
|
*/
|
|
u32 tpm_continue_self_test(struct udevice *dev);
|
|
|
|
/**
|
|
* Issue a TPM_NV_DefineSpace command. The implementation is limited
|
|
* to specify TPM_NV_ATTRIBUTES and size of the area. The area index
|
|
* could be one of the special value listed in enum tpm_nv_index.
|
|
*
|
|
* @param dev TPM device
|
|
* @param index index of the area
|
|
* @param perm TPM_NV_ATTRIBUTES of the area
|
|
* @param size size of the area
|
|
* Return: return code of the operation
|
|
*/
|
|
u32 tpm_nv_define_space(struct udevice *dev, u32 index, u32 perm, u32 size);
|
|
|
|
/**
|
|
* Issue a TPM_NV_ReadValue command. This implementation is limited
|
|
* to read the area from offset 0. The area index could be one of
|
|
* the special value listed in enum tpm_nv_index.
|
|
*
|
|
* @param dev TPM device
|
|
* @param index index of the area
|
|
* @param data output buffer of the area contents
|
|
* @param count size of output buffer
|
|
* Return: return code of the operation
|
|
*/
|
|
u32 tpm_nv_read_value(struct udevice *dev, u32 index, void *data, u32 count);
|
|
|
|
/**
|
|
* Issue a TPM_NV_WriteValue command. This implementation is limited
|
|
* to write the area from offset 0. The area index could be one of
|
|
* the special value listed in enum tpm_nv_index.
|
|
*
|
|
* @param dev TPM device
|
|
* @param index index of the area
|
|
* @param data input buffer to be wrote to the area
|
|
* @param length length of data bytes of input buffer
|
|
* Return: return code of the operation
|
|
*/
|
|
u32 tpm_nv_write_value(struct udevice *dev, u32 index, const void *data,
|
|
u32 length);
|
|
|
|
/**
|
|
* Issue a TPM_Extend command.
|
|
*
|
|
* @param dev TPM device
|
|
* @param index index of the PCR
|
|
* @param in_digest 160-bit value representing the event to be
|
|
* recorded
|
|
* @param out_digest 160-bit PCR value after execution of the
|
|
* command
|
|
* Return: return code of the operation
|
|
*/
|
|
u32 tpm_pcr_extend(struct udevice *dev, u32 index, const void *in_digest,
|
|
void *out_digest);
|
|
|
|
/**
|
|
* Issue a TPM_PCRRead command.
|
|
*
|
|
* @param dev TPM device
|
|
* @param index index of the PCR
|
|
* @param data output buffer for contents of the named PCR
|
|
* @param count size of output buffer
|
|
* Return: return code of the operation
|
|
*/
|
|
u32 tpm_pcr_read(struct udevice *dev, u32 index, void *data, size_t count);
|
|
|
|
/**
|
|
* Issue a TSC_PhysicalPresence command. TPM physical presence flag
|
|
* is bit-wise OR'ed of flags listed in enum tpm_physical_presence.
|
|
*
|
|
* @param dev TPM device
|
|
* @param presence TPM physical presence flag
|
|
* Return: return code of the operation
|
|
*/
|
|
u32 tpm_tsc_physical_presence(struct udevice *dev, u16 presence);
|
|
|
|
/**
|
|
* Issue a TPM_ReadPubek command.
|
|
*
|
|
* @param dev TPM device
|
|
* @param data output buffer for the public endorsement key
|
|
* @param count size of output buffer
|
|
* Return: return code of the operation
|
|
*/
|
|
u32 tpm_read_pubek(struct udevice *dev, void *data, size_t count);
|
|
|
|
/**
|
|
* Issue a TPM_ForceClear command.
|
|
*
|
|
* @param dev TPM device
|
|
* Return: return code of the operation
|
|
*/
|
|
u32 tpm_force_clear(struct udevice *dev);
|
|
|
|
/**
|
|
* Issue a TPM_PhysicalEnable command.
|
|
*
|
|
* @param dev TPM device
|
|
* Return: return code of the operation
|
|
*/
|
|
u32 tpm_physical_enable(struct udevice *dev);
|
|
|
|
/**
|
|
* Issue a TPM_PhysicalDisable command.
|
|
*
|
|
* @param dev TPM device
|
|
* Return: return code of the operation
|
|
*/
|
|
u32 tpm_physical_disable(struct udevice *dev);
|
|
|
|
/**
|
|
* Issue a TPM_PhysicalSetDeactivated command.
|
|
*
|
|
* @param dev TPM device
|
|
* @param state boolean state of the deactivated flag
|
|
* Return: return code of the operation
|
|
*/
|
|
u32 tpm_physical_set_deactivated(struct udevice *dev, u8 state);
|
|
|
|
/**
|
|
* Issue a TPM_GetCapability command. This implementation is limited
|
|
* to query sub_cap index that is 4-byte wide.
|
|
*
|
|
* @param dev TPM device
|
|
* @param cap_area partition of capabilities
|
|
* @param sub_cap further definition of capability, which is
|
|
* limited to be 4-byte wide
|
|
* @param cap output buffer for capability information
|
|
* @param count size of output buffer
|
|
* Return: return code of the operation
|
|
*/
|
|
u32 tpm_get_capability(struct udevice *dev, u32 cap_area, u32 sub_cap,
|
|
void *cap, size_t count);
|
|
|
|
/**
|
|
* Issue a TPM_FlushSpecific command for a AUTH resource.
|
|
*
|
|
* @param dev TPM device
|
|
* @param auth_handle handle of the auth session
|
|
* Return: return code of the operation
|
|
*/
|
|
u32 tpm_terminate_auth_session(struct udevice *dev, u32 auth_handle);
|
|
|
|
/**
|
|
* Issue a TPM_OIAP command to setup an object independent authorization
|
|
* session.
|
|
* Information about the session is stored internally.
|
|
* If there was already an OIAP session active it is terminated and a new
|
|
* session is set up.
|
|
*
|
|
* @param dev TPM device
|
|
* @param auth_handle pointer to the (new) auth handle or NULL.
|
|
* Return: return code of the operation
|
|
*/
|
|
u32 tpm_oiap(struct udevice *dev, u32 *auth_handle);
|
|
|
|
/**
|
|
* Ends an active OIAP session.
|
|
*
|
|
* @param dev TPM device
|
|
* Return: return code of the operation
|
|
*/
|
|
u32 tpm_end_oiap(struct udevice *dev);
|
|
|
|
/**
|
|
* Issue a TPM_LoadKey2 (Auth1) command using an OIAP session for authenticating
|
|
* the usage of the parent key.
|
|
*
|
|
* @param dev TPM device
|
|
* @param parent_handle handle of the parent key.
|
|
* @param key pointer to the key structure (TPM_KEY or TPM_KEY12).
|
|
* @param key_length size of the key structure
|
|
* @param parent_key_usage_auth usage auth for the parent key
|
|
* @param key_handle pointer to the key handle
|
|
* Return: return code of the operation
|
|
*/
|
|
u32 tpm_load_key2_oiap(struct udevice *dev, u32 parent_handle, const void *key,
|
|
size_t key_length, const void *parent_key_usage_auth,
|
|
u32 *key_handle);
|
|
|
|
/**
|
|
* Issue a TPM_GetPubKey (Auth1) command using an OIAP session for
|
|
* authenticating the usage of the key.
|
|
*
|
|
* @param dev TPM device
|
|
* @param key_handle handle of the key
|
|
* @param usage_auth usage auth for the key
|
|
* @param pubkey pointer to the pub key buffer; may be NULL if the pubkey
|
|
* should not be stored.
|
|
* @param pubkey_len pointer to the pub key buffer len. On entry: the size of
|
|
* the provided pubkey buffer. On successful exit: the size
|
|
* of the stored TPM_PUBKEY structure (iff pubkey != NULL).
|
|
* Return: return code of the operation
|
|
*/
|
|
u32 tpm_get_pub_key_oiap(struct udevice *dev, u32 key_handle,
|
|
const void *usage_auth, void *pubkey,
|
|
size_t *pubkey_len);
|
|
|
|
/**
|
|
* Get the TPM permissions
|
|
*
|
|
* @param dev TPM device
|
|
* @param perm Returns permissions value
|
|
* Return: return code of the operation
|
|
*/
|
|
u32 tpm_get_permissions(struct udevice *dev, u32 index, u32 *perm);
|
|
|
|
/**
|
|
* Flush a resource with a given handle and type from the TPM
|
|
*
|
|
* @param dev TPM device
|
|
* @param key_handle handle of the resource
|
|
* @param resource_type type of the resource
|
|
* Return: return code of the operation
|
|
*/
|
|
u32 tpm_flush_specific(struct udevice *dev, u32 key_handle, u32 resource_type);
|
|
|
|
#ifdef CONFIG_TPM_LOAD_KEY_BY_SHA1
|
|
/**
|
|
* Search for a key by usage AuthData and the hash of the parent's pub key.
|
|
*
|
|
* @param dev TPM device
|
|
* @param auth Usage auth of the key to search for
|
|
* @param pubkey_digest SHA1 hash of the pub key structure of the key
|
|
* @param[out] handle The handle of the key (Non-null iff found)
|
|
* Return: 0 if key was found in TPM; != 0 if not.
|
|
*/
|
|
u32 tpm_find_key_sha1(struct udevice *dev, const u8 auth[20],
|
|
const u8 pubkey_digest[20], u32 *handle);
|
|
#endif /* CONFIG_TPM_LOAD_KEY_BY_SHA1 */
|
|
|
|
/**
|
|
* Read random bytes from the TPM RNG. The implementation deals with the fact
|
|
* that the TPM may legally return fewer bytes than requested by retrying
|
|
* until @p count bytes have been received.
|
|
*
|
|
* @param dev TPM device
|
|
* @param data output buffer for the random bytes
|
|
* @param count size of output buffer
|
|
* Return: return code of the operation
|
|
*/
|
|
u32 tpm_get_random(struct udevice *dev, void *data, u32 count);
|
|
|
|
/**
|
|
* tpm_finalise_physical_presence() - Finalise physical presence
|
|
*
|
|
* @param dev TPM device
|
|
* Return: return code of the operation (0 = success)
|
|
*/
|
|
u32 tpm_finalise_physical_presence(struct udevice *dev);
|
|
|
|
/**
|
|
* tpm_nv_enable_locking() - lock the non-volatile space
|
|
*
|
|
* @param dev TPM device
|
|
* Return: return code of the operation (0 = success)
|
|
*/
|
|
u32 tpm_nv_enable_locking(struct udevice *dev);
|
|
|
|
/**
|
|
* tpm_set_global_lock() - set the global lock
|
|
*
|
|
* @param dev TPM device
|
|
* Return: return code of the operation (0 = success)
|
|
*/
|
|
u32 tpm_set_global_lock(struct udevice *dev);
|
|
|
|
/**
|
|
* tpm_write_lock() - lock the non-volatile space
|
|
*
|
|
* @param dev TPM device
|
|
* @param index Index of space to lock
|
|
* Return: return code of the operation (0 = success)
|
|
*/
|
|
u32 tpm_write_lock(struct udevice *dev, u32 index);
|
|
|
|
/**
|
|
* tpm_resume() - start up the TPM from resume (after suspend)
|
|
*
|
|
* @param dev TPM device
|
|
* Return: return code of the operation (0 = success)
|
|
*/
|
|
u32 tpm_resume(struct udevice *dev);
|
|
|
|
#endif /* __TPM_API_H */
|