[PATCH 4/8] tpm: Correct the define-space command in TPMv2

[Simon Glass]

The message format is incorrect. Fix it.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

 lib/tpm-v2.c | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/lib/tpm-v2.c b/lib/tpm-v2.c
index 6058f2e1e4..fe99b9c863 100644
--- a/lib/tpm-v2.c
+++ b/lib/tpm-v2.c
@@ -89,14 +89,14 @@ u32 tpm2_nv_define_space(struct udevice *dev, u32 space_index,
 	 * Calculate the offset of the nv_policy piece by adding each of the
 	 * chunks below.
 	 */
-	uint offset = 10 + 8 + 13 + 14;
+	uint offset = 10 + 4 + 13 + 14;
 	u8 command_v2[COMMAND_BUFFER_SIZE] = {
 		/* header 10 bytes */
 		tpm_u16(TPM2_ST_SESSIONS),	/* TAG */
-		tpm_u32(offset + nv_policy_size),/* Length */
+		tpm_u32(offset + nv_policy_size + 2),/* Length */
 		tpm_u32(TPM2_CC_NV_DEFINE_SPACE),/* Command code */
 
-		/* handles 8 bytes */
+		/* handles 4 bytes */
 		tpm_u32(TPM2_RH_PLATFORM),	/* Primary platform seed */
 
 		/* session header 13 bytes */
@@ -107,12 +107,15 @@ u32 tpm2_nv_define_space(struct udevice *dev, u32 space_index,
 		tpm_u16(0),			/* auth_size */
 
 		/* message 14 bytes + policy */
-		tpm_u16(12 + nv_policy_size),	/* size */
+		tpm_u16(12 + nv_policy_size + 2),	/* size */
 		tpm_u32(space_index),
 		tpm_u16(TPM2_ALG_SHA256),
 		tpm_u32(nv_attributes),
 		tpm_u16(nv_policy_size),
-		/* nv_policy */
+		/*
+		 * nv_policy
+		 * space_size
+		 */
 	};
 	int ret;
 
@@ -120,8 +123,9 @@ u32 tpm2_nv_define_space(struct udevice *dev, u32 space_index,
 	 * Fill the command structure starting from the first buffer:
 	 *     - the password (if any)
 	 */
-	ret = pack_byte_string(command_v2, sizeof(command_v2), "s",
-			       offset, nv_policy, nv_policy_size);
+	ret = pack_byte_string(command_v2, sizeof(command_v2), "sw",
+			       offset, nv_policy, nv_policy_size,
+			       offset + nv_policy_size, space_size);
 	if (ret)
 		return TPM_LIB_ERROR;
 
-- 
2.35.1.574.g5d30c73bfb-goog