tpm: Move TPM1 specific definitions to the command header

Gather all the TPM1 definitions and structures from the internal header
file drivers/char/tpm/tpm.h into the command header. In addition, bring
in the single RNG structure from tpm1-cmd.c.

The definitions moved to these files correspond to the TCG specification
for TPM 1 family:

TPM 1.2 Main Specification
 -  https://trustedcomputinggroup.org/resource/tpm-main-specification/

Co-developed-by: Daniel P. Smith <dpsmith@apertussolutions.com>
Signed-off-by: Daniel P. Smith <dpsmith@apertussolutions.com>
Co-developed-by: Alec Brown <alec.r.brown@oracle.com>
Signed-off-by: Alec Brown <alec.r.brown@oracle.com>
Signed-off-by: Ross Philipson <ross.philipson@gmail.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>

1 files changed, 115 insertions, 0 deletions

diff --git a/include/linux/tpm_command.h b/include/linux/tpm_command.h
index 174b043d8bbc..30d01953a6f8 100644
--- a/include/linux/tpm_command.h
+++ b/include/linux/tpm_command.h
@@ -36,6 +36,121 @@ enum tpm_command_ordinals {
 	TPM_ORD_UNSEAL			= 24,
 };
 
+enum tpm_capabilities {
+	TPM_CAP_FLAG		= 4,
+	TPM_CAP_PROP		= 5,
+	TPM_CAP_VERSION_1_1	= 0x06,
+	TPM_CAP_VERSION_1_2	= 0x1A,
+};
+
+enum tpm_sub_capabilities {
+	TPM_CAP_PROP_PCR		= 0x101,
+	TPM_CAP_PROP_MANUFACTURER	= 0x103,
+	TPM_CAP_FLAG_PERM		= 0x108,
+	TPM_CAP_FLAG_VOL		= 0x109,
+	TPM_CAP_PROP_OWNER		= 0x111,
+	TPM_CAP_PROP_TIS_TIMEOUT	= 0x115,
+	TPM_CAP_PROP_TIS_DURATION	= 0x120,
+};
+
+/* Return Codes */
+enum tpm_return_codes {
+	TPM_BASE_MASK			= 0,
+	TPM_NON_FATAL_MASK		= 0x00000800,
+	TPM_SUCCESS			= TPM_BASE_MASK + 0,
+	TPM_ERR_DEACTIVATED		= TPM_BASE_MASK + 6,
+	TPM_ERR_DISABLED		= TPM_BASE_MASK + 7,
+	TPM_ERR_FAIL			= TPM_BASE_MASK + 9,
+	TPM_ERR_FAILEDSELFTEST		= TPM_BASE_MASK + 28,
+	TPM_ERR_INVALID_POSTINIT	= TPM_BASE_MASK + 38,
+	TPM_ERR_INVALID_FAMILY		= TPM_BASE_MASK + 55,
+	TPM_WARN_RETRY			= TPM_BASE_MASK + TPM_NON_FATAL_MASK + 0,
+	TPM_WARN_DOING_SELFTEST		= TPM_BASE_MASK + TPM_NON_FATAL_MASK + 2,
+};
+
+struct	stclear_flags_t {
+	__be16 tag;
+	u8 deactivated;
+	u8 disableForceClear;
+	u8 physicalPresence;
+	u8 physicalPresenceLock;
+	u8 bGlobalLock;
+} __packed;
+
+struct tpm1_version {
+	u8 major;
+	u8 minor;
+	u8 rev_major;
+	u8 rev_minor;
+} __packed;
+
+struct tpm1_version2 {
+	__be16 tag;
+	struct tpm1_version version;
+} __packed;
+
+struct	timeout_t {
+	__be32 a;
+	__be32 b;
+	__be32 c;
+	__be32 d;
+} __packed;
+
+struct duration_t {
+	__be32 tpm_short;
+	__be32 tpm_medium;
+	__be32 tpm_long;
+} __packed;
+
+struct permanent_flags_t {
+	__be16 tag;
+	u8 disable;
+	u8 ownership;
+	u8 deactivated;
+	u8 readPubek;
+	u8 disableOwnerClear;
+	u8 allowMaintenance;
+	u8 physicalPresenceLifetimeLock;
+	u8 physicalPresenceHWEnable;
+	u8 physicalPresenceCMDEnable;
+	u8 CEKPUsed;
+	u8 TPMpost;
+	u8 TPMpostLock;
+	u8 FIPS;
+	u8 operator;
+	u8 enableRevokeEK;
+	u8 nvLocked;
+	u8 readSRKPub;
+	u8 tpmEstablished;
+	u8 maintenanceDone;
+	u8 disableFullDALogicInfo;
+} __packed;
+
+typedef union {
+	struct permanent_flags_t perm_flags;
+	struct stclear_flags_t stclear_flags;
+	__u8 owned;
+	__be32 num_pcrs;
+	struct tpm1_version version1;
+	struct tpm1_version2 version2;
+	__be32 manufacturer_id;
+	struct timeout_t timeout;
+	struct duration_t duration;
+} cap_t;
+
+/*
+ * 128 bytes is an arbitrary cap. This could be as large as TPM_BUFSIZE - 18
+ * bytes, but 128 is still a relatively large number of random bytes and
+ * anything much bigger causes users of struct tpm_cmd_t to start getting
+ * compiler warnings about stack frame size.
+ */
+#define TPM_MAX_RNG_DATA		128
+
+struct tpm1_get_random_out {
+	__be32 rng_data_len;
+	u8 rng_data[TPM_MAX_RNG_DATA];
+} __packed;
+
 /* Other constants */
 #define SRKHANDLE                       0x40000000
 #define TPM_NONCE_SIZE                  20