From: Tomas Winkler <tomas.winkler@intel.com>
To: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>,
Jason Gunthorpe <jgg@ziepe.ca>
Cc: Alexander Usyskin <alexander.usyskin@intel.com>,
linux-integrity@vger.kernel.org,
linux-security-module@vger.kernel.org,
linux-kernel@vger.kernel.org,
Tomas Winkler <tomas.winkler@intel.com>
Subject: [PATCH 1/4] tmp: move tpm1_pcr_extend to tpm1-cmd.c
Date: Tue, 6 Mar 2018 11:30:38 +0200 [thread overview]
Message-ID: <20180306093041.11996-2-tomas.winkler@intel.com> (raw)
In-Reply-To: <20180306093041.11996-1-tomas.winkler@intel.com>
Move tpm1_pcr_extend to tpm1-cmd.c and remove
unused pcrextend_header structure.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
---
drivers/char/tpm/tpm-interface.c | 28 ----------------------------
drivers/char/tpm/tpm.h | 2 ++
drivers/char/tpm/tpm1-cmd.c | 23 +++++++++++++++++++++++
3 files changed, 25 insertions(+), 28 deletions(-)
diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c
index 7f6968b750c8..83eeefb2a4af 100644
--- a/drivers/char/tpm/tpm-interface.c
+++ b/drivers/char/tpm/tpm-interface.c
@@ -514,34 +514,6 @@ int tpm_pcr_read(struct tpm_chip *chip, int pcr_idx, u8 *res_buf)
}
EXPORT_SYMBOL_GPL(tpm_pcr_read);
-#define TPM_ORD_PCR_EXTEND 20
-#define EXTEND_PCR_RESULT_SIZE 34
-#define EXTEND_PCR_RESULT_BODY_SIZE 20
-static const struct tpm_input_header pcrextend_header = {
- .tag = cpu_to_be16(TPM_TAG_RQU_COMMAND),
- .length = cpu_to_be32(34),
- .ordinal = cpu_to_be32(TPM_ORD_PCR_EXTEND)
-};
-
-static int tpm1_pcr_extend(struct tpm_chip *chip, int pcr_idx, const u8 *hash,
- char *log_msg)
-{
- struct tpm_buf buf;
- int rc;
-
- rc = tpm_buf_init(&buf, TPM_TAG_RQU_COMMAND, TPM_ORD_PCR_EXTEND);
- if (rc)
- return rc;
-
- tpm_buf_append_u32(&buf, pcr_idx);
- tpm_buf_append(&buf, hash, TPM_DIGEST_SIZE);
-
- rc = tpm_transmit_cmd(chip, NULL, buf.data, EXTEND_PCR_RESULT_SIZE,
- EXTEND_PCR_RESULT_BODY_SIZE, 0, log_msg);
- tpm_buf_destroy(&buf);
- return rc;
-}
-
/**
* tpm_pcr_extend - extend a PCR value in SHA1 bank.
* @chip: a &struct tpm_chip instance, %NULL for the default chip
diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
index 48706f091856..4306c878f1d9 100644
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -535,6 +535,8 @@ int tpm_do_selftest(struct tpm_chip *chip);
int tpm1_auto_startup(struct tpm_chip *chip);
int tpm1_get_timeouts(struct tpm_chip *chip);
unsigned long tpm1_calc_ordinal_duration(struct tpm_chip *chip, u32 ordinal);
+int tpm1_pcr_extend(struct tpm_chip *chip, int pcr_idx, const u8 *hash,
+ const char *log_msg);
int tpm_pm_suspend(struct device *dev);
int tpm_pm_resume(struct device *dev);
diff --git a/drivers/char/tpm/tpm1-cmd.c b/drivers/char/tpm/tpm1-cmd.c
index e48be0c09131..dc07eafe9d69 100644
--- a/drivers/char/tpm/tpm1-cmd.c
+++ b/drivers/char/tpm/tpm1-cmd.c
@@ -414,3 +414,26 @@ int tpm1_get_timeouts(struct tpm_chip *chip)
chip->flags |= TPM_CHIP_FLAG_HAVE_TIMEOUTS;
return 0;
}
+
+#define TPM_ORD_PCR_EXTEND 20
+#define EXTEND_PCR_RESULT_SIZE 34
+#define EXTEND_PCR_RESULT_BODY_SIZE 20
+int tpm1_pcr_extend(struct tpm_chip *chip, int pcr_idx, const u8 *hash,
+ const char *log_msg)
+{
+ struct tpm_buf buf;
+ int rc;
+
+ rc = tpm_buf_init(&buf, TPM_TAG_RQU_COMMAND, TPM_ORD_PCR_EXTEND);
+ if (rc)
+ return rc;
+
+ tpm_buf_append_u32(&buf, pcr_idx);
+ tpm_buf_append(&buf, hash, TPM_DIGEST_SIZE);
+
+ rc = tpm_transmit_cmd(chip, NULL, buf.data, EXTEND_PCR_RESULT_SIZE,
+ EXTEND_PCR_RESULT_BODY_SIZE, 0, log_msg);
+ tpm_buf_destroy(&buf);
+ return rc;
+}
+
--
2.14.3
next prev parent reply other threads:[~2018-03-06 9:34 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-06 9:30 [PATCH 0/4] tpm: factor out tpm1 code into tpm1-cmd.c Tomas Winkler
2018-03-06 9:30 ` Tomas Winkler [this message]
2018-03-06 9:30 ` [PATCH 2/4] tmp: move tpm_getcap to tpm1-cmd.c Tomas Winkler
2018-03-06 9:30 ` [PATCH 3/4] tmp: factor out tpm1_get_random into tpm1-cmd.c Tomas Winkler
2018-03-06 11:31 ` Jarkko Sakkinen
2018-03-06 11:34 ` Winkler, Tomas
2018-03-06 13:56 ` Jarkko Sakkinen
2018-03-06 9:30 ` [PATCH 4/4] tpm: move tpm1 selftest code from tpm-interface tpm1-cmd.c Tomas Winkler
2018-03-06 11:32 ` Jarkko Sakkinen
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