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tpm: fixed the nv_define_space command in TPMv2

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Added 2 HMAC bytes to the command message

Signed-off-by: Alex Michel <alex.michel@wiedemann-group.com>
This commit is contained in:
Michel Alex
2025-02-13 12:43:34 +00:00
committed by Simon Glass
parent 51b2881ec6
commit 1215db7073
1 changed files with 3 additions and 2 deletions
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5
lib/tpm-v2.c
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@@ -142,7 +142,7 @@ u32 tpm2_nv_define_space(struct udevice *dev, u32 space_index,
* chunks below.
*/
const int platform_len = sizeof(u32);
const int session_hdr_len = 13;
const int session_hdr_len = 15;
const int message_len = 14;
uint offset = TPM2_HDR_LEN + platform_len + session_hdr_len +
message_len;
@@ -155,11 +155,12 @@ u32 tpm2_nv_define_space(struct udevice *dev, u32 space_index,
/* handles 4 bytes */
tpm_u32(TPM2_RH_PLATFORM), /* Primary platform seed */
/* session header 13 bytes */
/* session header 15 bytes */
tpm_u32(9), /* Header size */
tpm_u32(TPM2_RS_PW), /* Password authorisation */
tpm_u16(0), /* nonce_size */
0, /* session_attrs */
tpm_u16(0), /* HMAC size */
tpm_u16(0), /* auth_size */
/* message 14 bytes + policy */