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sandbox: tpm: Correct handling of get-capability

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This function current handles the kernel case incorrectly. Fix it, and
use the shorter TPM_HDR_LEN while we are here.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2021-07-18 14:18:00 -06:00
parent f9143c1200
commit 7f350a959c
1 changed files with 4 additions and 10 deletions
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14
drivers/tpm/tpm_tis_sandbox.c
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@ -140,16 +140,13 @@ static int sandbox_tpm_xfer(struct udevice *dev, const uint8_t *sendbuf,
printf("Get flags index %#02x\n", index); printf("Get flags index %#02x\n", index);
*recv_len = 22; *recv_len = 22;
memset(recvbuf, '\0', *recv_len); memset(recvbuf, '\0', *recv_len);
data = recvbuf + TPM_RESPONSE_HEADER_LENGTH + data = recvbuf + TPM_HDR_LEN + sizeof(uint32_t);
sizeof(uint32_t);
switch (index) { switch (index) {
case FIRMWARE_NV_INDEX: case FIRMWARE_NV_INDEX:
break; break;
case KERNEL_NV_INDEX: case KERNEL_NV_INDEX:
handle_cap_flag_space(&data, index); handle_cap_flag_space(&data, index);
*recv_len = data - recvbuf - *recv_len = data - recvbuf;
TPM_RESPONSE_HEADER_LENGTH -
sizeof(uint32_t);
break; break;
case TPM_CAP_FLAG_PERMANENT: { case TPM_CAP_FLAG_PERMANENT: {
struct tpm_permanent_flags *pflags; struct tpm_permanent_flags *pflags;
@ -166,15 +163,12 @@ static int sandbox_tpm_xfer(struct udevice *dev, const uint8_t *sendbuf,
printf(" ** Unknown flags index %x\n", index); printf(" ** Unknown flags index %x\n", index);
return -ENOSYS; return -ENOSYS;
} }
put_unaligned_be32(*recv_len, put_unaligned_be32(*recv_len, recvbuf + TPM_HDR_LEN);
recvbuf +
TPM_RESPONSE_HEADER_LENGTH);
break; break;
case TPM_CAP_NV_INDEX: case TPM_CAP_NV_INDEX:
index = get_unaligned_be32(sendbuf + 18); index = get_unaligned_be32(sendbuf + 18);
printf("Get cap nv index %#02x\n", index); printf("Get cap nv index %#02x\n", index);
put_unaligned_be32(22, recvbuf + put_unaligned_be32(22, recvbuf + TPM_HDR_LEN);
TPM_RESPONSE_HEADER_LENGTH);
break; break;
default: default:
printf(" ** Unknown 0x65 command type %#02x\n", printf(" ** Unknown 0x65 command type %#02x\n",