TPM commands are much easier to handle with these macros that will transform words or integers into byte string. This way, there is no need to call pack_byte_string() while all variable length in a command are known (and at must 4 bytes, which is a lot of them).
Signed-off-by: Miquel Raynal miquel.raynal@bootlin.com --- lib/tpm.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/lib/tpm.c b/lib/tpm.c index 38b76b4961..1b3a112311 100644 --- a/lib/tpm.c +++ b/lib/tpm.c @@ -15,6 +15,12 @@ /* Internal error of TPM command library */ #define TPM_LIB_ERROR ((uint32_t)~0u)
+/* To make strings of commands more easily */ +#define __MSB(x) ((x) >> 8) +#define __LSB(x) ((x) & 0xFF) +#define STRINGIFY16(x) __MSB(x), __LSB(x) +#define STRINGIFY32(x) STRINGIFY16((x) >> 16), STRINGIFY16((x) & 0xFFFF) + /* Global boolean to discriminate TPMv2.x from TPMv1.x functions */ static bool is_tpmv2;