On Sat, 2 Oct 2021 at 01:43, Heinrich Schuchardt <xypron.g...@gmx.de> wrote: > > > > On 10/1/21 13:18, Masahisa Kojima wrote: > > This commit adds the DeployedMode and AuditMode variable > > measurement required in TCG PC Client PFP Spec. > > > > Signed-off-by: Masahisa Kojima <masahisa.koj...@linaro.org> > > --- > > > > Changes in v3: > > - read variable first, then mesure the variable > > > > lib/efi_loader/efi_tcg2.c | 50 +++++++++++++++++++++++++++++++++++++++ > > 1 file changed, 50 insertions(+) > > > > diff --git a/lib/efi_loader/efi_tcg2.c b/lib/efi_loader/efi_tcg2.c > > index 28e0362bf2..7fba4bc458 100644 > > --- a/lib/efi_loader/efi_tcg2.c > > +++ b/lib/efi_loader/efi_tcg2.c > > @@ -12,6 +12,7 @@ > > #include <dm.h> > > #include <efi_loader.h> > > #include <efi_tcg2.h> > > +#include <efi_variable.h> > > #include <log.h> > > #include <malloc.h> > > #include <smbios.h> > > @@ -1822,6 +1823,53 @@ out: > > return ret; > > } > > > > +/** > > + * tcg2_measure_deployed_audit_mode() - measure deployedmode and auditmode > > + * > > + * @dev: TPM device > > + * > > + * Return: status code > > + */ > > +static efi_status_t tcg2_measure_deployed_audit_mode(struct udevice *dev) > > +{ > > + u8 deployed_mode; > > + u8 audit_mode; > > + efi_uintn_t size; > > + efi_status_t ret; > > + u32 pcr_index; > > + > > + size = sizeof(deployed_mode); > > + ret = efi_get_variable_int(L"DeployedMode", &efi_global_variable_guid, > > + NULL, &size, &deployed_mode, NULL); > > + if (ret != EFI_SUCCESS) > > + return ret; > > + > > + size = sizeof(audit_mode); > > + ret = efi_get_variable_int(L"AuditMode", &efi_global_variable_guid, > > + NULL, &size, &audit_mode, NULL); > > + if (ret != EFI_SUCCESS) > > + return ret; > > + > > + pcr_index = (deployed_mode ? 1 : 7); > > + > > + ret = tcg2_measure_variable(dev, pcr_index, > > + EV_EFI_VARIABLE_DRIVER_CONFIG, > > + L"DeployedMode", > > + &efi_global_variable_guid, > > + size, &deployed_mode); > > + if (ret != EFI_SUCCESS) > > + return ret; > > + > > + > > + ret = tcg2_measure_variable(dev, pcr_index, > > + EV_EFI_VARIABLE_DRIVER_CONFIG, > > + L"AuditMode", > > + &efi_global_variable_guid, > > + size, &audit_mode); > > + > > + return ret; > > +} > > + > > /** > > * tcg2_measure_secure_boot_variable() - measure secure boot variables > > * > > @@ -1885,6 +1933,8 @@ static efi_status_t > > tcg2_measure_secure_boot_variable(struct udevice *dev) > > free(data); > > } > > > > + ret = tcg2_measure_deployed_audit_mode(dev); > > You do the same thing four times. A loop is preferable.
After your series(efi_loader: centralize known vendor GUIDs) is merged, I will update this patch to use loop for the secure variables. Thanks, Masahisa Kojima > > Best regards > > Heinrich > > > + > > error: > > return ret; > > } > >