From mboxrd@z Thu Jan 1 00:00:00 1970 From: stefanb@linux.vnet.ibm.com (Stefan Berger) Date: Mon, 15 May 2017 12:51:44 -0400 Subject: [PATCH v5 1/2] tpm: Introduce flag TPM_TRANSMIT_RAW In-Reply-To: <1494867105-30722-1-git-send-email-stefanb@linux.vnet.ibm.com> References: <1494867105-30722-1-git-send-email-stefanb@linux.vnet.ibm.com> Message-ID: <1494867105-30722-2-git-send-email-stefanb@linux.vnet.ibm.com> To: linux-security-module@vger.kernel.org List-Id: linux-security-module.vger.kernel.org Introduce the flag TPM_TRASNMIT_RAW that allows us to transmit a command without recursing into the requesting of locality. Signed-off-by: Stefan Berger --- drivers/char/tpm/tpm-interface.c | 3 ++- drivers/char/tpm/tpm.h | 1 + 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c index 4ed08ab..2eacda2 100644 --- a/drivers/char/tpm/tpm-interface.c +++ b/drivers/char/tpm/tpm-interface.c @@ -416,7 +416,8 @@ ssize_t tpm_transmit(struct tpm_chip *chip, struct tpm_space *space, /* Store the decision as chip->locality will be changed. */ need_locality = chip->locality == -1; - if (need_locality && chip->ops->request_locality) { + if (!(flags & TPM_TRANSMIT_RAW) && + need_locality && chip->ops->request_locality) { rc = chip->ops->request_locality(chip, 0); if (rc < 0) goto out_no_locality; diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h index e81d8c7..25d9858 100644 --- a/drivers/char/tpm/tpm.h +++ b/drivers/char/tpm/tpm.h @@ -525,6 +525,7 @@ extern struct idr dev_nums_idr; enum tpm_transmit_flags { TPM_TRANSMIT_UNLOCKED = BIT(0), + TPM_TRANSMIT_RAW = BIT(1), }; ssize_t tpm_transmit(struct tpm_chip *chip, struct tpm_space *space, -- 2.4.3 -- To unsubscribe from this list: send the line "unsubscribe linux-security-module" in the body of a message to majordomo at vger.kernel.org More majordomo info@ http://vger.kernel.org/majordomo-info.html