From 1ad6640cd61422536968dfe7fe9a32b1840fc2d9 Mon Sep 17 00:00:00 2001 From: Tomas Winkler Date: Fri, 19 Oct 2018 21:22:53 +0300 Subject: tpm: move tpm1_pcr_extend to tpm1-cmd.c MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Move tpm1_pcr_extend to tpm1-cmd.c and remove unused pcrextend_header structure and EXTEND_PCR_RESULT_SIZE and EXTEND_PCR_RESULT_BODY_SIZE defines. Fixes warning: drivers/char/tpm/tpm-interface.c:609:38: warning: ‘pcrextend_header’ defined but not used [-Wunused-const-variable=] static const struct tpm_input_header pcrextend_header = { ^~~~~~~~~~~~~~~~ Signed-off-by: Tomas Winkler Reviewed-by: Jarkko Sakkinen Reviewed-by: Nayna Jain Tested-by: Nayna Jain Signed-off-by: Jarkko Sakkinen --- drivers/char/tpm/tpm-interface.c | 28 ---------------------------- drivers/char/tpm/tpm.h | 2 ++ drivers/char/tpm/tpm1-cmd.c | 21 +++++++++++++++++++++ 3 files changed, 23 insertions(+), 28 deletions(-) (limited to 'drivers/char') diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c index 1fa0300f3829..ac73e6ac3d83 100644 --- a/drivers/char/tpm/tpm-interface.c +++ b/drivers/char/tpm/tpm-interface.c @@ -614,34 +614,6 @@ 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 4ea51bbdbfae..221b6dcd15a1 100644 --- a/drivers/char/tpm/tpm.h +++ b/drivers/char/tpm/tpm.h @@ -549,6 +549,8 @@ int tpm_do_selftest(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); unsigned long tpm_calc_ordinal_duration(struct tpm_chip *chip, u32 ordinal); 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 978946748ea3..ec242397e6dc 100644 --- a/drivers/char/tpm/tpm1-cmd.c +++ b/drivers/char/tpm/tpm1-cmd.c @@ -413,3 +413,24 @@ int tpm1_get_timeouts(struct tpm_chip *chip) chip->flags |= TPM_CHIP_FLAG_HAVE_TIMEOUTS; return 0; } + +#define TPM_ORD_PCR_EXTEND 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, PAGE_SIZE, + TPM_DIGEST_SIZE, 0, log_msg); + + tpm_buf_destroy(&buf); + return rc; +} -- cgit v1.2.3