diff options
| author | Philippe Mathieu-Daudé <philmd@redhat.com> | 2020-06-12 10:54:44 +0200 |
|---|---|---|
| committer | Stefan Berger <stefanb@linux.vnet.ibm.com> | 2020-06-19 07:25:55 -0400 |
| commit | ca64b08638e259c313a3e7c3da106116b59be8e9 (patch) | |
| tree | 6c379666c5f88d99ef592ef524e3718c7d07445f /hw/tpm/tpm_ioctl.h | |
| parent | 0f7d2148201932c6a02b310543b1e50503a0ab2d (diff) | |
tpm: Move backend code under the 'backends/' directory
TPM subsytem is split into backends (see commit f4ede81eed2)
and frontends (see i.e. 3676bc69b35). Keep the emulated
hardware 'frontends' under hw/tpm/, but move the backends
in the backends/tpm/ directory.
Suggested-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200612085444.8362-13-philmd@redhat.com
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Diffstat (limited to 'hw/tpm/tpm_ioctl.h')
| -rw-r--r-- | hw/tpm/tpm_ioctl.h | 271 |
1 files changed, 0 insertions, 271 deletions
diff --git a/hw/tpm/tpm_ioctl.h b/hw/tpm/tpm_ioctl.h deleted file mode 100644 index f5f5c553a9..0000000000 --- a/hw/tpm/tpm_ioctl.h +++ /dev/null @@ -1,271 +0,0 @@ -/* - * tpm_ioctl.h - * - * (c) Copyright IBM Corporation 2014, 2015. - * - * This file is licensed under the terms of the 3-clause BSD license - */ - -#ifndef TPM_IOCTL_H -#define TPM_IOCTL_H - -#include <sys/uio.h> -#include <sys/ioctl.h> - -/* - * Every response from a command involving a TPM command execution must hold - * the ptm_res as the first element. - * ptm_res corresponds to the error code of a command executed by the TPM. - */ - -typedef uint32_t ptm_res; - -/* PTM_GET_TPMESTABLISHED: get the establishment bit */ -struct ptm_est { - union { - struct { - ptm_res tpm_result; - unsigned char bit; /* TPM established bit */ - } resp; /* response */ - } u; -}; - -/* PTM_RESET_TPMESTABLISHED: reset establishment bit */ -struct ptm_reset_est { - union { - struct { - uint8_t loc; /* locality to use */ - } req; /* request */ - struct { - ptm_res tpm_result; - } resp; /* response */ - } u; -}; - -/* PTM_INIT */ -struct ptm_init { - union { - struct { - uint32_t init_flags; /* see definitions below */ - } req; /* request */ - struct { - ptm_res tpm_result; - } resp; /* response */ - } u; -}; - -/* above init_flags */ -#define PTM_INIT_FLAG_DELETE_VOLATILE (1 << 0) - /* delete volatile state file after reading it */ - -/* PTM_SET_LOCALITY */ -struct ptm_loc { - union { - struct { - uint8_t loc; /* locality to set */ - } req; /* request */ - struct { - ptm_res tpm_result; - } resp; /* response */ - } u; -}; - -/* PTM_HASH_DATA: hash given data */ -struct ptm_hdata { - union { - struct { - uint32_t length; - uint8_t data[4096]; - } req; /* request */ - struct { - ptm_res tpm_result; - } resp; /* response */ - } u; -}; - -/* - * size of the TPM state blob to transfer; x86_64 can handle 8k, - * ppc64le only ~7k; keep the response below a 4k page size - */ -#define PTM_STATE_BLOB_SIZE (3 * 1024) - -/* - * The following is the data structure to get state blobs from the TPM. - * If the size of the state blob exceeds the PTM_STATE_BLOB_SIZE, multiple reads - * with this ioctl and with adjusted offset are necessary. All bytes - * must be transferred and the transfer is done once the last byte has been - * returned. - * It is possible to use the read() interface for reading the data; however, the - * first bytes of the state blob will be part of the response to the ioctl(); a - * subsequent read() is only necessary if the total length (totlength) exceeds - * the number of received bytes. seek() is not supported. - */ -struct ptm_getstate { - union { - struct { - uint32_t state_flags; /* may be: PTM_STATE_FLAG_DECRYPTED */ - uint32_t type; /* which blob to pull */ - uint32_t offset; /* offset from where to read */ - } req; /* request */ - struct { - ptm_res tpm_result; - uint32_t state_flags; /* may be: PTM_STATE_FLAG_ENCRYPTED */ - uint32_t totlength; /* total length that will be transferred */ - uint32_t length; /* number of bytes in following buffer */ - uint8_t data[PTM_STATE_BLOB_SIZE]; - } resp; /* response */ - } u; -}; - -/* TPM state blob types */ -#define PTM_BLOB_TYPE_PERMANENT 1 -#define PTM_BLOB_TYPE_VOLATILE 2 -#define PTM_BLOB_TYPE_SAVESTATE 3 - -/* state_flags above : */ -#define PTM_STATE_FLAG_DECRYPTED 1 /* on input: get decrypted state */ -#define PTM_STATE_FLAG_ENCRYPTED 2 /* on output: state is encrypted */ - -/* - * The following is the data structure to set state blobs in the TPM. - * If the size of the state blob exceeds the PTM_STATE_BLOB_SIZE, multiple - * 'writes' using this ioctl are necessary. The last packet is indicated - * by the length being smaller than the PTM_STATE_BLOB_SIZE. - * The very first packet may have a length indicator of '0' enabling - * a write() with all the bytes from a buffer. If the write() interface - * is used, a final ioctl with a non-full buffer must be made to indicate - * that all data were transferred (a write with 0 bytes would not work). - */ -struct ptm_setstate { - union { - struct { - uint32_t state_flags; /* may be PTM_STATE_FLAG_ENCRYPTED */ - uint32_t type; /* which blob to set */ - uint32_t length; /* length of the data; - use 0 on the first packet to - transfer using write() */ - uint8_t data[PTM_STATE_BLOB_SIZE]; - } req; /* request */ - struct { - ptm_res tpm_result; - } resp; /* response */ - } u; -}; - -/* - * PTM_GET_CONFIG: Data structure to get runtime configuration information - * such as which keys are applied. - */ -struct ptm_getconfig { - union { - struct { - ptm_res tpm_result; - uint32_t flags; - } resp; /* response */ - } u; -}; - -#define PTM_CONFIG_FLAG_FILE_KEY 0x1 -#define PTM_CONFIG_FLAG_MIGRATION_KEY 0x2 - -/* - * PTM_SET_BUFFERSIZE: Set the buffer size to be used by the TPM. - * A 0 on input queries for the current buffer size. Any other - * number will try to set the buffer size. The returned number is - * the buffer size that will be used, which can be larger than the - * requested one, if it was below the minimum, or smaller than the - * requested one, if it was above the maximum. - */ -struct ptm_setbuffersize { - union { - struct { - uint32_t buffersize; /* 0 to query for current buffer size */ - } req; /* request */ - struct { - ptm_res tpm_result; - uint32_t buffersize; /* buffer size in use */ - uint32_t minsize; /* min. supported buffer size */ - uint32_t maxsize; /* max. supported buffer size */ - } resp; /* response */ - } u; -}; - - -typedef uint64_t ptm_cap; -typedef struct ptm_est ptm_est; -typedef struct ptm_reset_est ptm_reset_est; -typedef struct ptm_loc ptm_loc; -typedef struct ptm_hdata ptm_hdata; -typedef struct ptm_init ptm_init; -typedef struct ptm_getstate ptm_getstate; -typedef struct ptm_setstate ptm_setstate; -typedef struct ptm_getconfig ptm_getconfig; -typedef struct ptm_setbuffersize ptm_setbuffersize; - -/* capability flags returned by PTM_GET_CAPABILITY */ -#define PTM_CAP_INIT (1) -#define PTM_CAP_SHUTDOWN (1 << 1) -#define PTM_CAP_GET_TPMESTABLISHED (1 << 2) -#define PTM_CAP_SET_LOCALITY (1 << 3) -#define PTM_CAP_HASHING (1 << 4) -#define PTM_CAP_CANCEL_TPM_CMD (1 << 5) -#define PTM_CAP_STORE_VOLATILE (1 << 6) -#define PTM_CAP_RESET_TPMESTABLISHED (1 << 7) -#define PTM_CAP_GET_STATEBLOB (1 << 8) -#define PTM_CAP_SET_STATEBLOB (1 << 9) -#define PTM_CAP_STOP (1 << 10) -#define PTM_CAP_GET_CONFIG (1 << 11) -#define PTM_CAP_SET_DATAFD (1 << 12) -#define PTM_CAP_SET_BUFFERSIZE (1 << 13) - -enum { - PTM_GET_CAPABILITY = _IOR('P', 0, ptm_cap), - PTM_INIT = _IOWR('P', 1, ptm_init), - PTM_SHUTDOWN = _IOR('P', 2, ptm_res), - PTM_GET_TPMESTABLISHED = _IOR('P', 3, ptm_est), - PTM_SET_LOCALITY = _IOWR('P', 4, ptm_loc), - PTM_HASH_START = _IOR('P', 5, ptm_res), - PTM_HASH_DATA = _IOWR('P', 6, ptm_hdata), - PTM_HASH_END = _IOR('P', 7, ptm_res), - PTM_CANCEL_TPM_CMD = _IOR('P', 8, ptm_res), - PTM_STORE_VOLATILE = _IOR('P', 9, ptm_res), - PTM_RESET_TPMESTABLISHED = _IOWR('P', 10, ptm_reset_est), - PTM_GET_STATEBLOB = _IOWR('P', 11, ptm_getstate), - PTM_SET_STATEBLOB = _IOWR('P', 12, ptm_setstate), - PTM_STOP = _IOR('P', 13, ptm_res), - PTM_GET_CONFIG = _IOR('P', 14, ptm_getconfig), - PTM_SET_DATAFD = _IOR('P', 15, ptm_res), - PTM_SET_BUFFERSIZE = _IOWR('P', 16, ptm_setbuffersize), -}; - -/* - * Commands used by the non-CUSE TPMs - * - * All messages container big-endian data. - * - * The return messages only contain the 'resp' part of the unions - * in the data structures above. Besides that the limits in the - * buffers above (ptm_hdata:u.req.data and ptm_get_state:u.resp.data - * and ptm_set_state:u.req.data) are 0xffffffff. - */ -enum { - CMD_GET_CAPABILITY = 1, - CMD_INIT, - CMD_SHUTDOWN, - CMD_GET_TPMESTABLISHED, - CMD_SET_LOCALITY, - CMD_HASH_START, - CMD_HASH_DATA, - CMD_HASH_END, - CMD_CANCEL_TPM_CMD, - CMD_STORE_VOLATILE, - CMD_RESET_TPMESTABLISHED, - CMD_GET_STATEBLOB, - CMD_SET_STATEBLOB, - CMD_STOP, - CMD_GET_CONFIG, - CMD_SET_DATAFD, - CMD_SET_BUFFERSIZE, -}; - -#endif /* TPM_IOCTL_H */ |