From ca64b08638e259c313a3e7c3da106116b59be8e9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= <philmd@redhat.com>
Date: Fri, 12 Jun 2020 10:54:44 +0200
Subject: tpm: Move backend code under the 'backends/' directory
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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>
---
hw/tpm/tpm_ioctl.h | 271 -----------------------------------------------------
1 file changed, 271 deletions(-)
delete mode 100644 hw/tpm/tpm_ioctl.h
(limited to 'hw/tpm/tpm_ioctl.h')
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 */
--
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