From 06e93279ca77ce2820723427f118a22dd0b35f0f Mon Sep 17 00:00:00 2001 From: Roberto Sassu Date: Wed, 3 May 2017 18:19:09 +0200 Subject: [PATCH] tpm: move endianness conversion of TPM_TAG_RQU_COMMAND to tpm_input_header In the long term, TPM 1.2 functions in the driver interface will be modified to use tpm_buf_init(). However, tag and ordinals cannot be passed directly to tpm_buf_init(), because this function performs CPU native to big-endian conversion of these arguments. Since TPM_TAG_RQU_COMMAND and TPM_ORD_ are already converted, passing them to the function will undo the previous conversion. This patch moves the conversion of TPM_TAG_RQU_COMMAND from the tpm.h header file in the driver directory to the tpm_input_header declarations in the driver interface and tpm-sysfs.c. Signed-off-by: Roberto Sassu Reviewed-by: Jarkko Sakkinen Tested-by: Jarkko Sakkinen Signed-off-by: Jarkko Sakkinen --- drivers/char/tpm/tpm-interface.c | 14 +++++++------- drivers/char/tpm/tpm-sysfs.c | 2 +- drivers/char/tpm/tpm.h | 2 +- 3 files changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c index 158c1db83f05..a60d57d214a6 100644 --- a/drivers/char/tpm/tpm-interface.c +++ b/drivers/char/tpm/tpm-interface.c @@ -544,7 +544,7 @@ ssize_t tpm_transmit_cmd(struct tpm_chip *chip, struct tpm_space *space, #define TPM_ORD_GET_RANDOM cpu_to_be32(70) static const struct tpm_input_header tpm_getcap_header = { - .tag = TPM_TAG_RQU_COMMAND, + .tag = cpu_to_be16(TPM_TAG_RQU_COMMAND), .length = cpu_to_be32(22), .ordinal = TPM_ORD_GET_CAP }; @@ -586,7 +586,7 @@ EXPORT_SYMBOL_GPL(tpm_getcap); #define TPM_ST_STATE cpu_to_be16(2) #define TPM_ST_DEACTIVATED cpu_to_be16(3) static const struct tpm_input_header tpm_startup_header = { - .tag = TPM_TAG_RQU_COMMAND, + .tag = cpu_to_be16(TPM_TAG_RQU_COMMAND), .length = cpu_to_be32(12), .ordinal = TPM_ORD_STARTUP }; @@ -737,7 +737,7 @@ EXPORT_SYMBOL_GPL(tpm_get_timeouts); #define CONTINUE_SELFTEST_RESULT_SIZE 10 static const struct tpm_input_header continue_selftest_header = { - .tag = TPM_TAG_RQU_COMMAND, + .tag = cpu_to_be16(TPM_TAG_RQU_COMMAND), .length = cpu_to_be32(10), .ordinal = cpu_to_be32(TPM_ORD_CONTINUE_SELFTEST), }; @@ -764,7 +764,7 @@ static int tpm_continue_selftest(struct tpm_chip *chip) #define READ_PCR_RESULT_SIZE 30 #define READ_PCR_RESULT_BODY_SIZE 20 static const struct tpm_input_header pcrread_header = { - .tag = TPM_TAG_RQU_COMMAND, + .tag = cpu_to_be16(TPM_TAG_RQU_COMMAND), .length = cpu_to_be32(14), .ordinal = TPM_ORDINAL_PCRREAD }; @@ -842,7 +842,7 @@ EXPORT_SYMBOL_GPL(tpm_pcr_read); #define EXTEND_PCR_RESULT_SIZE 34 #define EXTEND_PCR_RESULT_BODY_SIZE 20 static const struct tpm_input_header pcrextend_header = { - .tag = TPM_TAG_RQU_COMMAND, + .tag = cpu_to_be16(TPM_TAG_RQU_COMMAND), .length = cpu_to_be32(34), .ordinal = TPM_ORD_PCR_EXTEND }; @@ -1064,7 +1064,7 @@ EXPORT_SYMBOL_GPL(wait_for_tpm_stat); #define SAVESTATE_RESULT_SIZE 10 static const struct tpm_input_header savestate_header = { - .tag = TPM_TAG_RQU_COMMAND, + .tag = cpu_to_be16(TPM_TAG_RQU_COMMAND), .length = cpu_to_be32(10), .ordinal = TPM_ORD_SAVESTATE }; @@ -1149,7 +1149,7 @@ EXPORT_SYMBOL_GPL(tpm_pm_resume); #define TPM_GETRANDOM_RESULT_SIZE 18 static const struct tpm_input_header tpm_getrandom_header = { - .tag = TPM_TAG_RQU_COMMAND, + .tag = cpu_to_be16(TPM_TAG_RQU_COMMAND), .length = cpu_to_be32(14), .ordinal = TPM_ORD_GET_RANDOM }; diff --git a/drivers/char/tpm/tpm-sysfs.c b/drivers/char/tpm/tpm-sysfs.c index 55405dbe43fa..b99fe66ca1b1 100644 --- a/drivers/char/tpm/tpm-sysfs.c +++ b/drivers/char/tpm/tpm-sysfs.c @@ -24,7 +24,7 @@ #define READ_PUBEK_RESULT_MIN_BODY_SIZE (28 + 256) #define TPM_ORD_READPUBEK cpu_to_be32(124) static const struct tpm_input_header tpm_readpubek_header = { - .tag = TPM_TAG_RQU_COMMAND, + .tag = cpu_to_be16(TPM_TAG_RQU_COMMAND), .length = cpu_to_be32(30), .ordinal = TPM_ORD_READPUBEK }; diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h index 4b4c8dee3096..e81d8c7acb39 100644 --- a/drivers/char/tpm/tpm.h +++ b/drivers/char/tpm/tpm.h @@ -247,7 +247,7 @@ struct tpm_output_header { __be32 return_code; } __packed; -#define TPM_TAG_RQU_COMMAND cpu_to_be16(193) +#define TPM_TAG_RQU_COMMAND 193 struct stclear_flags_t { __be16 tag; -- 2.20.1