Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
From:   amirmizi6@gmail.com
To:     Eyal.Cohen@nuvoton.com, jarkko.sakkinen@linux.intel.com,
        peterhuewe@gmx.de, jgg@ziepe.ca
Cc:     linux-kernel@vger.kernel.org, linux-integrity@vger.kernel.org,
        Dan.Morav@nuvoton.com, oren.tanami@nuvoton.com,
        shmulik.hager@nuvoton.com, amir.mizinski@nuvoton.com,
        Amir Mizinski <amirmizi6@gmail.com>
Subject: [PATCH v1] tpm2: add longer timeout for verify signature command
Date:   Mon, 10 May 2021 17:27:19 +0300
Message-Id: <20210510142719.48153-2-amirmizi6@gmail.com>
In-Reply-To: <20210510142719.48153-1-amirmizi6@gmail.com>
References: <20210510142719.48153-1-amirmizi6@gmail.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

From: Amir Mizinski <amirmizi6@gmail.com>

TPM2_CC_VERIFY_SIGNATURE(0x177) Current timeout does not apply to usage with
RSA 3070-bit keys.
Additional time may be required for usage with RSA 3070-bit keys. Therefore, the
timeout of TPM2_CC_VERIFY_SIGNATURE is set to 3 minutes (TPM_LONG_LONG).

Signed-off-by: Amir Mizinski <amirmizi6@gmail.com>
---
 drivers/char/tpm/tpm2-cmd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/tpm/tpm2-cmd.c b/drivers/char/tpm/tpm2-cmd.c
index eff1f12..235a454 100644
--- a/drivers/char/tpm/tpm2-cmd.c
+++ b/drivers/char/tpm/tpm2-cmd.c
@@ -87,7 +87,7 @@ static u8 tpm2_ordinal_duration_index(u32 ordinal)
 		return TPM_MEDIUM;
 
 	case TPM2_CC_VERIFY_SIGNATURE:        /* 177 */
-		return TPM_LONG;
+		return TPM_LONG_LONG;
 
 	case TPM2_CC_PCR_EXTEND:              /* 182 */
 		return TPM_MEDIUM;
-- 
2.7.4