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| author | Masahisa Kojima <masahisa.kojima@linaro.org> | 2021-11-04 22:59:16 +0900 |
|---|---|---|
| committer | Heinrich Schuchardt <xypron.glpk@gmx.de> | 2021-11-07 18:36:55 +0100 |
| commit | 7fc93cae4903c5332b8ae94e1517f7c79f250a4d (patch) | |
| tree | 4c9216af31059d317ddfdece1970a7ad57a92063 /lib | |
| parent | 14cbb330fe8e2723871926a3806954393da83cce (diff) | |
| download | u-boot-7fc93cae4903c5332b8ae94e1517f7c79f250a4d.zip u-boot-7fc93cae4903c5332b8ae94e1517f7c79f250a4d.tar.gz u-boot-7fc93cae4903c5332b8ae94e1517f7c79f250a4d.tar.bz2 | |
efi_loader: add EFI_TCG2_PROTOCOL.SubmitCommand
This commit adds the EFI_TCG2_PROTOCOL.SubmitCommand
required in the TCG PC Client PFP spec.
SubmitCommand enables to send the raw command to the TPM device.
To implement this api, tpm2_submit_command() is added
into tpm-v2.c.
Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/efi_loader/efi_tcg2.c | 38 | ||||
| -rw-r--r-- | lib/tpm-v2.c | 6 |
2 files changed, 38 insertions, 6 deletions
diff --git a/lib/efi_loader/efi_tcg2.c b/lib/efi_loader/efi_tcg2.c index 64d3d32..586f73a 100644 --- a/lib/efi_loader/efi_tcg2.c +++ b/lib/efi_loader/efi_tcg2.c @@ -1034,13 +1034,39 @@ out: * Return: status code */ static efi_status_t EFIAPI -efi_tcg2_submit_command(__maybe_unused struct efi_tcg2_protocol *this, - u32 __maybe_unused input_param_block_size, - u8 __maybe_unused *input_param_block, - u32 __maybe_unused output_param_block_size, - u8 __maybe_unused *output_param_block) +efi_tcg2_submit_command(struct efi_tcg2_protocol *this, + u32 input_param_block_size, + u8 *input_param_block, + u32 output_param_block_size, + u8 *output_param_block) { - return EFI_UNSUPPORTED; + struct udevice *dev; + efi_status_t ret; + u32 rc; + size_t resp_buf_size = output_param_block_size; + + EFI_ENTRY("%p, %u, %p, %u, %p", this, input_param_block_size, + input_param_block, output_param_block_size, output_param_block); + + if (!this || !input_param_block || !input_param_block_size) { + ret = EFI_INVALID_PARAMETER; + goto out; + } + + ret = platform_get_tpm2_device(&dev); + if (ret != EFI_SUCCESS) + goto out; + + rc = tpm2_submit_command(dev, input_param_block, + output_param_block, &resp_buf_size); + if (rc) { + ret = (rc == -ENOSPC) ? EFI_OUT_OF_RESOURCES : EFI_DEVICE_ERROR; + + goto out; + } + +out: + return EFI_EXIT(ret); } /** diff --git a/lib/tpm-v2.c b/lib/tpm-v2.c index 235f8c2..2e7b27b 100644 --- a/lib/tpm-v2.c +++ b/lib/tpm-v2.c @@ -659,3 +659,9 @@ u32 tpm2_disable_platform_hierarchy(struct udevice *dev) return 0; } + +u32 tpm2_submit_command(struct udevice *dev, const u8 *sendbuf, + u8 *recvbuf, size_t *recv_size) +{ + return tpm_sendrecv_command(dev, sendbuf, recvbuf, recv_size); +} |