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Message-Id: <20240503221634.44274-2-ignat@cloudflare.com>
Date: Fri,  3 May 2024 23:16:33 +0100
From: Ignat Korchagin <ignat@...udflare.com>
To: James Bottomley <James.Bottomley@...senPartnership.com>,
	Jarkko Sakkinen <jarkko@...nel.org>,
	Mimi Zohar <zohar@...ux.ibm.com>,
	David Howells <dhowells@...hat.com>,
	Paul Moore <paul@...l-moore.com>,
	James Morris <jmorris@...ei.org>,
	serge@...lyn.com,
	linux-integrity@...r.kernel.org,
	keyrings@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: kernel-team@...udflare.com,
	Ignat Korchagin <ignat@...udflare.com>
Subject: [RFC PATCH 1/2] tpm: add some algorithm and constant definitions from the TPM spec

In preparation for implementing TPM derived keys we need to use some new TPM
functionality in the kernel, so add relevant constant definitions.

Signed-off-by: Ignat Korchagin <ignat@...udflare.com>
---
 include/linux/tpm.h | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/include/linux/tpm.h b/include/linux/tpm.h
index 4ee9d13749ad..5be0808b1b91 100644
--- a/include/linux/tpm.h
+++ b/include/linux/tpm.h
@@ -35,6 +35,7 @@ struct trusted_key_options;
 enum tpm_algorithms {
 	TPM_ALG_ERROR		= 0x0000,
 	TPM_ALG_SHA1		= 0x0004,
+	TPM_ALG_HMAC		= 0x0005,
 	TPM_ALG_KEYEDHASH	= 0x0008,
 	TPM_ALG_SHA256		= 0x000B,
 	TPM_ALG_SHA384		= 0x000C,
@@ -209,6 +210,7 @@ enum tpm2_return_codes {
 	TPM2_RC_DISABLED	= 0x0120,
 	TPM2_RC_UPGRADE		= 0x012D,
 	TPM2_RC_COMMAND_CODE    = 0x0143,
+	TPM2_RC_OBJECT_MEMORY	= 0x0902,
 	TPM2_RC_TESTING		= 0x090A, /* RC_WARN */
 	TPM2_RC_REFERENCE_H0	= 0x0910,
 	TPM2_RC_RETRY		= 0x0922,
@@ -227,6 +229,7 @@ enum tpm2_command_codes {
 	TPM2_CC_CREATE		        = 0x0153,
 	TPM2_CC_LOAD		        = 0x0157,
 	TPM2_CC_SEQUENCE_UPDATE         = 0x015C,
+	TPM2_CC_SIGN		        = 0x015D,
 	TPM2_CC_UNSEAL		        = 0x015E,
 	TPM2_CC_CONTEXT_LOAD	        = 0x0161,
 	TPM2_CC_CONTEXT_SAVE	        = 0x0162,
@@ -234,6 +237,7 @@ enum tpm2_command_codes {
 	TPM2_CC_VERIFY_SIGNATURE        = 0x0177,
 	TPM2_CC_GET_CAPABILITY	        = 0x017A,
 	TPM2_CC_GET_RANDOM	        = 0x017B,
+	TPM2_CC_HASH	        	= 0x017D,
 	TPM2_CC_PCR_READ	        = 0x017E,
 	TPM2_CC_PCR_EXTEND	        = 0x0182,
 	TPM2_CC_EVENT_SEQUENCE_COMPLETE = 0x0185,
@@ -243,7 +247,8 @@ enum tpm2_command_codes {
 };
 
 enum tpm2_permanent_handles {
-	TPM2_RS_PW		= 0x40000009,
+	TPM2_RH_OWNER = 0x40000001,
+	TPM2_RS_PW    = 0x40000009,
 };
 
 enum tpm2_capabilities {
@@ -312,9 +317,12 @@ struct tpm_buf {
 };
 
 enum tpm2_object_attributes {
-	TPM2_OA_FIXED_TPM		= BIT(1),
-	TPM2_OA_FIXED_PARENT		= BIT(4),
-	TPM2_OA_USER_WITH_AUTH		= BIT(6),
+	TPM2_OA_FIXED_TPM 		= BIT(1),
+	TPM2_OA_FIXED_PARENT 		= BIT(4),
+	TPM2_OA_SENSITIVE_DATA_ORIGIN	= BIT(5),
+	TPM2_OA_USER_WITH_AUTH 		= BIT(6),
+	TPM2_OA_RESTRICTED 		= BIT(16),
+	TPM2_OA_SIGN 			= BIT(18),
 };
 
 enum tpm2_session_attributes {
-- 
2.39.2


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