tpm: Change response length of tpm2_get_capability()
For implementing the EFI_TCG2_PROTOCOL we need the count field returned by
the TPM when reading capabilities via tpm2_get_capability().
Adjust the implementation of the 'tpm2 get_capability' command accordingly.
Suggested-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
diff --git a/lib/tpm-v2.c b/lib/tpm-v2.c
index a4c352e..9175906 100644
--- a/lib/tpm-v2.c
+++ b/lib/tpm-v2.c
@@ -184,10 +184,10 @@
/*
* In the response buffer, the properties are located after the:
* tag (u16), response size (u32), response code (u32),
- * YES/NO flag (u8), TPM_CAP (u32) and TPMU_CAPABILITIES (u32).
+ * YES/NO flag (u8), TPM_CAP (u32).
*/
properties_off = sizeof(u16) + sizeof(u32) + sizeof(u32) +
- sizeof(u8) + sizeof(u32) + sizeof(u32);
+ sizeof(u8) + sizeof(u32);
memcpy(buf, &response[properties_off], response_len - properties_off);
return 0;