[mirror_qemu.git] / backends / tpm / tpm_ioctl.h

/*
 * 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_

#if defined(__CYGWIN__)
# define __USE_LINUX_IOCTL_DEFS
#endif

#ifndef _WIN32
#include <sys/uio.h>
#include <sys/ioctl.h>
#endif

#ifdef HAVE_SYS_IOCCOM_H
#include <sys/ioccom.h>
#endif

/*
 * 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;
};

#define PTM_GETINFO_SIZE (3 * 1024)
/*
 * PTM_GET_INFO: Get info about the TPM implementation (from libtpms)
 *
 * This request allows to indirectly call TPMLIB_GetInfo(flags) and
 * retrieve information from libtpms.
 * Only one transaction is currently necessary for returning results
 * to a client. Therefore, totlength and length will be the same if
 * offset is 0.
 */
struct ptm_getinfo {
    union {
        struct {
            uint64_t flags;
            uint32_t offset;      /* offset from where to read */
            uint32_t pad;         /* 32 bit arch */
        } req; /* request */
        struct {
            ptm_res tpm_result;
            uint32_t totlength;
            uint32_t length;
            char buffer[PTM_GETINFO_SIZE];
        } resp; /* response */
    } u;
};

#define SWTPM_INFO_TPMSPECIFICATION ((uint64_t)1 << 0)
#define SWTPM_INFO_TPMATTRIBUTES    ((uint64_t)1 << 1)

/*
 * PTM_LOCK_STORAGE: Lock the storage and retry n times
 */
struct ptm_lockstorage {
    union {
        struct {
            uint32_t retries; /* number of retries */
        } req; /* request */
        struct {
            ptm_res tpm_result;
        } 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;
typedef struct ptm_getinfo ptm_getinfo;
typedef struct ptm_lockstorage ptm_lockstorage;

/* 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)
#define PTM_CAP_GET_INFO           (1 << 14)
#define PTM_CAP_SEND_COMMAND_HEADER (1 << 15)
#define PTM_CAP_LOCK_STORAGE       (1 << 16)

#ifndef _WIN32
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),
    PTM_GET_INFO           = _IOWR('P', 17, ptm_getinfo),
    PTM_LOCK_STORAGE       = _IOWR('P', 18, ptm_lockstorage),
};
#endif

/*
 * 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,   /* 0x01 */
    CMD_INIT,                 /* 0x02 */
    CMD_SHUTDOWN,             /* 0x03 */
    CMD_GET_TPMESTABLISHED,   /* 0x04 */
    CMD_SET_LOCALITY,         /* 0x05 */
    CMD_HASH_START,           /* 0x06 */
    CMD_HASH_DATA,            /* 0x07 */
    CMD_HASH_END,             /* 0x08 */
    CMD_CANCEL_TPM_CMD,       /* 0x09 */
    CMD_STORE_VOLATILE,       /* 0x0a */
    CMD_RESET_TPMESTABLISHED, /* 0x0b */
    CMD_GET_STATEBLOB,        /* 0x0c */
    CMD_SET_STATEBLOB,        /* 0x0d */
    CMD_STOP,                 /* 0x0e */
    CMD_GET_CONFIG,           /* 0x0f */
    CMD_SET_DATAFD,           /* 0x10 */
    CMD_SET_BUFFERSIZE,       /* 0x11 */
    CMD_GET_INFO,             /* 0x12 */
    CMD_LOCK_STORAGE,         /* 0x13 */
};

#endif /* _TPM_IOCTL_H_ */
Commit	Line	Data
f4ede81e AV	1	/*
	2	* tpm_ioctl.h
	3	*
	4	* (c) Copyright IBM Corporation 2014, 2015.
	5	*
	6	* This file is licensed under the terms of the 3-clause BSD license
	7	*/
efef4756 SB	8	#ifndef _TPM_IOCTL_H_
efef4756 SB	9	#define _TPM_IOCTL_H_
a8b991b5	10
efef4756 SB	11	#if defined(__CYGWIN__)
	12	# define __USE_LINUX_IOCTL_DEFS
	13	#endif
f4ede81e	14
d1c637ec	15	#ifndef _WIN32
f4ede81e	16	#include <sys/uio.h>
f4ede81e	17	#include <sys/ioctl.h>
d1c637ec	18	#endif
f4ede81e	19
ded5d78c TH	20	#ifdef HAVE_SYS_IOCCOM_H
	21	#include <sys/ioccom.h>
	22	#endif
	23
f4ede81e AV	24	/*
	25	* Every response from a command involving a TPM command execution must hold
	26	* the ptm_res as the first element.
	27	* ptm_res corresponds to the error code of a command executed by the TPM.
	28	*/
	29
	30	typedef uint32_t ptm_res;
	31
	32	/* PTM_GET_TPMESTABLISHED: get the establishment bit */
	33	struct ptm_est {
	34	union {
	35	struct {
	36	ptm_res tpm_result;
	37	unsigned char bit; /* TPM established bit */
	38	} resp; /* response */
	39	} u;
	40	};
	41
	42	/* PTM_RESET_TPMESTABLISHED: reset establishment bit */
	43	struct ptm_reset_est {
	44	union {
	45	struct {
	46	uint8_t loc; /* locality to use */
	47	} req; /* request */
	48	struct {
	49	ptm_res tpm_result;
	50	} resp; /* response */
	51	} u;
	52	};
	53
	54	/* PTM_INIT */
	55	struct ptm_init {
	56	union {
	57	struct {
	58	uint32_t init_flags; /* see definitions below */
	59	} req; /* request */
	60	struct {
	61	ptm_res tpm_result;
	62	} resp; /* response */
	63	} u;
	64	};
	65
	66	/* above init_flags */
	67	#define PTM_INIT_FLAG_DELETE_VOLATILE (1 << 0)
	68	/* delete volatile state file after reading it */
	69
	70	/* PTM_SET_LOCALITY */
	71	struct ptm_loc {
	72	union {
	73	struct {
	74	uint8_t loc; /* locality to set */
	75	} req; /* request */
	76	struct {
	77	ptm_res tpm_result;
	78	} resp; /* response */
	79	} u;
	80	};
	81
	82	/* PTM_HASH_DATA: hash given data */
	83	struct ptm_hdata {
	84	union {
	85	struct {
	86	uint32_t length;
	87	uint8_t data[4096];
88	} req; /* request */
89	struct {
90	ptm_res tpm_result;
91	} resp; /* response */
92	} u;
93	};
94
95	/*
96	* size of the TPM state blob to transfer; x86_64 can handle 8k,
97	* ppc64le only ~7k; keep the response below a 4k page size
98	*/
99	#define PTM_STATE_BLOB_SIZE (3 * 1024)
100
101	/*
102	* The following is the data structure to get state blobs from the TPM.
103	* If the size of the state blob exceeds the PTM_STATE_BLOB_SIZE, multiple reads
104	* with this ioctl and with adjusted offset are necessary. All bytes
105	* must be transferred and the transfer is done once the last byte has been
106	* returned.
107	* It is possible to use the read() interface for reading the data; however, the
108	* first bytes of the state blob will be part of the response to the ioctl(); a
109	* subsequent read() is only necessary if the total length (totlength) exceeds
110	* the number of received bytes. seek() is not supported.
111	*/
112	struct ptm_getstate {
113	union {
114	struct {
115	uint32_t state_flags; /* may be: PTM_STATE_FLAG_DECRYPTED */
116	uint32_t type; /* which blob to pull */
117	uint32_t offset; /* offset from where to read */
118	} req; /* request */
119	struct {
120	ptm_res tpm_result;
121	uint32_t state_flags; /* may be: PTM_STATE_FLAG_ENCRYPTED */
122	uint32_t totlength; /* total length that will be transferred */
123	uint32_t length; /* number of bytes in following buffer */
124	uint8_t data[PTM_STATE_BLOB_SIZE];
125	} resp; /* response */
126	} u;
127	};
128
129	/* TPM state blob types */
130	#define PTM_BLOB_TYPE_PERMANENT 1
131	#define PTM_BLOB_TYPE_VOLATILE 2
132	#define PTM_BLOB_TYPE_SAVESTATE 3
133
134	/* state_flags above : */
135	#define PTM_STATE_FLAG_DECRYPTED 1 /* on input: get decrypted state */
136	#define PTM_STATE_FLAG_ENCRYPTED 2 /* on output: state is encrypted */
137
138	/*
139	* The following is the data structure to set state blobs in the TPM.
140	* If the size of the state blob exceeds the PTM_STATE_BLOB_SIZE, multiple
141	* 'writes' using this ioctl are necessary. The last packet is indicated
142	* by the length being smaller than the PTM_STATE_BLOB_SIZE.
143	* The very first packet may have a length indicator of '0' enabling
144	* a write() with all the bytes from a buffer. If the write() interface
145	* is used, a final ioctl with a non-full buffer must be made to indicate
146	* that all data were transferred (a write with 0 bytes would not work).
147	*/
148	struct ptm_setstate {
149	union {
150	struct {
151	uint32_t state_flags; /* may be PTM_STATE_FLAG_ENCRYPTED */
152	uint32_t type; /* which blob to set */
153	uint32_t length; /* length of the data;
154	use 0 on the first packet to
155	transfer using write() */
156	uint8_t data[PTM_STATE_BLOB_SIZE];
157	} req; /* request */
158	struct {
159	ptm_res tpm_result;
160	} resp; /* response */
161	} u;
162	};
163
164	/*
165	* PTM_GET_CONFIG: Data structure to get runtime configuration information
166	* such as which keys are applied.
167	*/
168	struct ptm_getconfig {
169	union {
170	struct {
171	ptm_res tpm_result;
172	uint32_t flags;
173	} resp; /* response */
174	} u;
175	};
176
177	#define PTM_CONFIG_FLAG_FILE_KEY 0x1
178	#define PTM_CONFIG_FLAG_MIGRATION_KEY 0x2
179
9375c44f SB	180	/*
	181	* PTM_SET_BUFFERSIZE: Set the buffer size to be used by the TPM.
	182	* A 0 on input queries for the current buffer size. Any other
	183	* number will try to set the buffer size. The returned number is
	184	* the buffer size that will be used, which can be larger than the
	185	* requested one, if it was below the minimum, or smaller than the
	186	* requested one, if it was above the maximum.
	187	*/
	188	struct ptm_setbuffersize {
	189	union {
	190	struct {
	191	uint32_t buffersize; /* 0 to query for current buffer size */
	192	} req; /* request */
	193	struct {
	194	ptm_res tpm_result;
	195	uint32_t buffersize; /* buffer size in use */
	196	uint32_t minsize; /* min. supported buffer size */
	197	uint32_t maxsize; /* max. supported buffer size */
	198	} resp; /* response */
	199	} u;
	200	};
	201
efef4756 SB	202	#define PTM_GETINFO_SIZE (3 * 1024)
	203	/*
	204	* PTM_GET_INFO: Get info about the TPM implementation (from libtpms)
	205	*
	206	* This request allows to indirectly call TPMLIB_GetInfo(flags) and
	207	* retrieve information from libtpms.
	208	* Only one transaction is currently necessary for returning results
	209	* to a client. Therefore, totlength and length will be the same if
	210	* offset is 0.
	211	*/
	212	struct ptm_getinfo {
	213	union {
	214	struct {
	215	uint64_t flags;
	216	uint32_t offset; /* offset from where to read */
	217	uint32_t pad; /* 32 bit arch */
	218	} req; /* request */
	219	struct {
	220	ptm_res tpm_result;
	221	uint32_t totlength;
	222	uint32_t length;
	223	char buffer[PTM_GETINFO_SIZE];
	224	} resp; /* response */
	225	} u;
	226	};
	227
	228	#define SWTPM_INFO_TPMSPECIFICATION ((uint64_t)1 << 0)
	229	#define SWTPM_INFO_TPMATTRIBUTES ((uint64_t)1 << 1)
	230
	231	/*
	232	* PTM_LOCK_STORAGE: Lock the storage and retry n times
	233	*/
	234	struct ptm_lockstorage {
	235	union {
	236	struct {
	237	uint32_t retries; /* number of retries */
	238	} req; /* request */
	239	struct {
	240	ptm_res tpm_result;
0a19d879	241	} resp; /* response */
efef4756 SB	242	} u;
efef4756 SB	243	};
f4ede81e AV	244
	245	typedef uint64_t ptm_cap;
	246	typedef struct ptm_est ptm_est;
	247	typedef struct ptm_reset_est ptm_reset_est;
	248	typedef struct ptm_loc ptm_loc;
	249	typedef struct ptm_hdata ptm_hdata;
	250	typedef struct ptm_init ptm_init;
	251	typedef struct ptm_getstate ptm_getstate;
	252	typedef struct ptm_setstate ptm_setstate;
	253	typedef struct ptm_getconfig ptm_getconfig;
9375c44f	254	typedef struct ptm_setbuffersize ptm_setbuffersize;
efef4756 SB	255	typedef struct ptm_getinfo ptm_getinfo;
efef4756 SB	256	typedef struct ptm_lockstorage ptm_lockstorage;
f4ede81e AV	257
	258	/* capability flags returned by PTM_GET_CAPABILITY */
	259	#define PTM_CAP_INIT (1)
	260	#define PTM_CAP_SHUTDOWN (1 << 1)
	261	#define PTM_CAP_GET_TPMESTABLISHED (1 << 2)
	262	#define PTM_CAP_SET_LOCALITY (1 << 3)
	263	#define PTM_CAP_HASHING (1 << 4)
	264	#define PTM_CAP_CANCEL_TPM_CMD (1 << 5)
	265	#define PTM_CAP_STORE_VOLATILE (1 << 6)
	266	#define PTM_CAP_RESET_TPMESTABLISHED (1 << 7)
	267	#define PTM_CAP_GET_STATEBLOB (1 << 8)
	268	#define PTM_CAP_SET_STATEBLOB (1 << 9)
	269	#define PTM_CAP_STOP (1 << 10)
	270	#define PTM_CAP_GET_CONFIG (1 << 11)
	271	#define PTM_CAP_SET_DATAFD (1 << 12)
9375c44f	272	#define PTM_CAP_SET_BUFFERSIZE (1 << 13)
efef4756 SB	273	#define PTM_CAP_GET_INFO (1 << 14)
	274	#define PTM_CAP_SEND_COMMAND_HEADER (1 << 15)
	275	#define PTM_CAP_LOCK_STORAGE (1 << 16)
f4ede81e	276
d1c637ec	277	#ifndef _WIN32
f4ede81e AV	278	enum {
	279	PTM_GET_CAPABILITY = _IOR('P', 0, ptm_cap),
	280	PTM_INIT = _IOWR('P', 1, ptm_init),
	281	PTM_SHUTDOWN = _IOR('P', 2, ptm_res),
	282	PTM_GET_TPMESTABLISHED = _IOR('P', 3, ptm_est),
	283	PTM_SET_LOCALITY = _IOWR('P', 4, ptm_loc),
	284	PTM_HASH_START = _IOR('P', 5, ptm_res),
	285	PTM_HASH_DATA = _IOWR('P', 6, ptm_hdata),
	286	PTM_HASH_END = _IOR('P', 7, ptm_res),
	287	PTM_CANCEL_TPM_CMD = _IOR('P', 8, ptm_res),
	288	PTM_STORE_VOLATILE = _IOR('P', 9, ptm_res),
	289	PTM_RESET_TPMESTABLISHED = _IOWR('P', 10, ptm_reset_est),
	290	PTM_GET_STATEBLOB = _IOWR('P', 11, ptm_getstate),
	291	PTM_SET_STATEBLOB = _IOWR('P', 12, ptm_setstate),
	292	PTM_STOP = _IOR('P', 13, ptm_res),
	293	PTM_GET_CONFIG = _IOR('P', 14, ptm_getconfig),
	294	PTM_SET_DATAFD = _IOR('P', 15, ptm_res),
9375c44f	295	PTM_SET_BUFFERSIZE = _IOWR('P', 16, ptm_setbuffersize),
efef4756 SB	296	PTM_GET_INFO = _IOWR('P', 17, ptm_getinfo),
efef4756 SB	297	PTM_LOCK_STORAGE = _IOWR('P', 18, ptm_lockstorage),
f4ede81e	298	};
d1c637ec	299	#endif
f4ede81e AV	300
	301	/*
	302	* Commands used by the non-CUSE TPMs
	303	*
	304	* All messages container big-endian data.
	305	*
	306	* The return messages only contain the 'resp' part of the unions
	307	* in the data structures above. Besides that the limits in the
	308	* buffers above (ptm_hdata:u.req.data and ptm_get_state:u.resp.data
	309	* and ptm_set_state:u.req.data) are 0xffffffff.
	310	*/
	311	enum {
efef4756 SB	312	CMD_GET_CAPABILITY = 1, /* 0x01 */
	313	CMD_INIT, /* 0x02 */
	314	CMD_SHUTDOWN, /* 0x03 */
	315	CMD_GET_TPMESTABLISHED, /* 0x04 */
	316	CMD_SET_LOCALITY, /* 0x05 */
	317	CMD_HASH_START, /* 0x06 */
	318	CMD_HASH_DATA, /* 0x07 */
	319	CMD_HASH_END, /* 0x08 */
	320	CMD_CANCEL_TPM_CMD, /* 0x09 */
	321	CMD_STORE_VOLATILE, /* 0x0a */
	322	CMD_RESET_TPMESTABLISHED, /* 0x0b */
	323	CMD_GET_STATEBLOB, /* 0x0c */
	324	CMD_SET_STATEBLOB, /* 0x0d */
	325	CMD_STOP, /* 0x0e */
	326	CMD_GET_CONFIG, /* 0x0f */
	327	CMD_SET_DATAFD, /* 0x10 */
	328	CMD_SET_BUFFERSIZE, /* 0x11 */
	329	CMD_GET_INFO, /* 0x12 */
	330	CMD_LOCK_STORAGE, /* 0x13 */
f4ede81e AV	331	};
f4ede81e AV	332
efef4756	333	#endif /* _TPM_IOCTL_H_ */