diff options
| author | Masahisa Kojima <masahisa.kojima@linaro.org> | 2021-10-26 17:27:25 +0900 |
|---|---|---|
| committer | Heinrich Schuchardt <heinrich.schuchardt@canonical.com> | 2021-10-26 21:32:46 +0200 |
| commit | ce3dbc5d080de8045dd5e2b512cad75434ba4cf5 (patch) | |
| tree | 914447046e0c0668321d7e749eeede4e2c0ccc47 /lib/efi_loader/efi_device_path.c | |
| parent | 3d49ee8510d38e7fd087c7250a3f4392a38bf0dd (diff) | |
efi_loader: add UEFI GPT measurement
This commit adds the UEFI GPT disk partition topology
measurement required in TCG PC Client Platform Firmware
Profile Specification
Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Diffstat (limited to 'lib/efi_loader/efi_device_path.c')
| -rw-r--r-- | lib/efi_loader/efi_device_path.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/lib/efi_loader/efi_device_path.c b/lib/efi_loader/efi_device_path.c index c04439d16d..735ed0bd0f 100644 --- a/lib/efi_loader/efi_device_path.c +++ b/lib/efi_loader/efi_device_path.c @@ -1239,3 +1239,30 @@ efi_device_path *efi_dp_from_lo(struct efi_load_option *lo, return NULL; } + +/** + * search_gpt_dp_node() - search gpt device path node + * + * @device_path: device path + * + * Return: pointer to the gpt device path node + */ +struct efi_device_path *search_gpt_dp_node(struct efi_device_path *device_path) +{ + struct efi_device_path *dp = device_path; + + while (dp) { + if (dp->type == DEVICE_PATH_TYPE_MEDIA_DEVICE && + dp->sub_type == DEVICE_PATH_SUB_TYPE_HARD_DRIVE_PATH) { + struct efi_device_path_hard_drive_path *hd_dp = + (struct efi_device_path_hard_drive_path *)dp; + + if (hd_dp->partmap_type == PART_FORMAT_GPT && + hd_dp->signature_type == SIG_TYPE_GUID) + return dp; + } + dp = efi_dp_next(dp); + } + + return NULL; +} |