[PATCH 3/5] uefirttime: add unsupported checking with RuntimeServicesSupported variable

[Ivan Hu]

UEFI spec 2.8 introduced the variable RuntimeServicesSupported, which is
Bitmask of which calls are implemented by the firmware during runtime services.
Add tests for checking time services with RuntimeServicesSupported variable.

Signed-off-by: Ivan Hu <ivan.hu at canonical.com>
---
 src/uefi/uefirttime/uefirttime.c | 149 ++++++++++++++++++++++++++++++++++++++-
 1 file changed, 148 insertions(+), 1 deletion(-)

diff --git a/src/uefi/uefirttime/uefirttime.c b/src/uefi/uefirttime/uefirttime.c
index ccd9acb..c6ffb64 100644
--- a/src/uefi/uefirttime/uefirttime.c
+++ b/src/uefi/uefirttime/uefirttime.c
@@ -1152,6 +1152,153 @@ static int uefirttime_test37(fwts_framework *fw)
 }
 #endif
 
+static int uefirttime_test38(fwts_framework *fw)
+{
+	bool getvar_supported;
+	uint32_t var_runtimeservicessupported;
+
+	struct efi_settime settime;
+	uint64_t status = ~0ULL;
+	struct efi_gettime gettime;
+	struct efi_getwakeuptime getwakeuptime;
+	uint8_t enabled, pending;
+	struct efi_setwakeuptime setwakeuptime;
+
+	EFI_TIME efi_time;
+	EFI_TIME_CAPABILITIES efi_time_cap;
+
+	fwts_uefi_rt_support_status_get(fd, &getvar_supported,
+			&var_runtimeservicessupported);
+
+	if (!getvar_supported || (var_runtimeservicessupported == 0xFFFF)) {
+		fwts_skipped(fw, "Cannot get the RuntimeServicesSupported "
+				"variable, maybe the runtime service "
+				"GetVariable is not supported or "
+				"RuntimeServicesSupported not provided by "
+				"firmware.");
+		return FWTS_SKIP;
+	}
+
+	gettime.Capabilities = &efi_time_cap;
+	gettime.Time = &efi_time;
+	gettime.status = &status;
+	ioctl(fd, EFI_RUNTIME_GET_TIME, &gettime);
+	if (status == EFI_UNSUPPORTED) {
+		if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_GET_TIME)
+			|| (var_runtimeservicessupported == 0)) {
+			fwts_failed(fw, LOG_LEVEL_HIGH, "UEFIRuntimeGetTime",
+				"Get the GetTime runtime service supported "
+				"via RuntimeServicesSupported variable. "
+				"But actually is not supported by firmware.");
+		} else {
+			fwts_passed(fw, "UEFI GetTime runtime service "
+				"supported status test passed.");
+		}
+	} else {
+		if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_GET_TIME)
+			|| (var_runtimeservicessupported == 0)) {
+			fwts_passed(fw, "UEFI GetTime runtime service "
+				"supported status test passed.");
+		} else {
+			fwts_failed(fw, LOG_LEVEL_HIGH, "UEFIRuntimeGetTime",
+				"Get the GetTime runtime service unsupported "
+				"via RuntimeServicesSupported variable. "
+				"But actually is supported by firmware.");
+		}
+	}
+
+	settime.Time = &efi_time;
+	status = ~0ULL;
+	settime.status = &status;
+
+	ioctl(fd, EFI_RUNTIME_SET_TIME, &settime);
+	if (status == EFI_UNSUPPORTED) {
+		if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_SET_TIME)
+			|| (var_runtimeservicessupported == 0)) {
+			fwts_failed(fw, LOG_LEVEL_HIGH, "UEFIRuntimeSetTime",
+				"Get the SetTime runtime service supported "
+				"via RuntimeServicesSupported variable. "
+				"But actually is not supported by firmware.");
+		} else {
+			fwts_passed(fw, "UEFI SetTime runtime service "
+				"supported status test passed.");
+		}
+	} else {
+		if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_SET_TIME)
+			|| (var_runtimeservicessupported == 0)) {
+			fwts_passed(fw, "UEFI SetTime runtime service "
+				"supported status test passed.");
+		} else {
+			fwts_failed(fw, LOG_LEVEL_HIGH, "UEFIRuntimeSetTime",
+				"Get the SetTime runtime service unsupported "
+				"via RuntimeServicesSupported variable. "
+				"But actually is supported by firmware.");
+		}
+	}
+
+	setwakeuptime.Time = &efi_time;
+	status = ~0ULL;
+	setwakeuptime.status = &status;
+	setwakeuptime.Enabled = false;
+
+	ioctl(fd, EFI_RUNTIME_SET_WAKETIME, &setwakeuptime);
+	if (status == EFI_UNSUPPORTED) {
+		if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_SET_WAKEUP_TIME)
+			|| (var_runtimeservicessupported == 0)) {
+			fwts_failed(fw, LOG_LEVEL_HIGH, "UEFIRuntimeSetWakeupTime",
+				"Get the SetWakeupTime runtime service supported "
+				"via RuntimeServicesSupported variable. "
+				"But actually is not supported by firmware");
+
+		} else {
+				fwts_passed(fw, "UEFI SetWakeupTime runtime service "
+					"supported status test passed.");
+		}
+	} else {
+		if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_SET_WAKEUP_TIME)
+			|| (var_runtimeservicessupported == 0)) {
+			fwts_passed(fw, "UEFI SetWakeupTime runtime service "
+				"supported status test passed.");
+		} else {
+			fwts_failed(fw, LOG_LEVEL_HIGH, "UEFIRuntimeSetWakeupTime",
+				"Get the SetWakeupTime runtime service unsupported "
+				"via RuntimeServicesSupported variable. "
+				"But actually is supported by firmware.");
+		}
+	}
+
+	getwakeuptime.Enabled = &enabled;
+	getwakeuptime.Pending = &pending;
+	getwakeuptime.Time = &efi_time;
+	getwakeuptime.status = &status;
+
+	ioctl(fd, EFI_RUNTIME_GET_WAKETIME, &getwakeuptime);
+	if (status == EFI_UNSUPPORTED) {
+		if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_GET_WAKEUP_TIME)
+			|| (var_runtimeservicessupported == 0)) {
+			fwts_failed(fw, LOG_LEVEL_HIGH, "UEFIRuntimeGetWakeupTime",
+				"Get the GetWakeupTime runtime service supported "
+				"via RuntimeServicesSupported variable. "
+				"But actually is not supported by firmware");
+		} else {
+			fwts_passed(fw, "UEFI GetWakeupTime runtime service "
+				"supported status test passed.");
+		}
+	} else {
+		if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_GET_WAKEUP_TIME)
+			|| (var_runtimeservicessupported == 0)) {
+			fwts_passed(fw, "UEFI GetWakeupTime runtime service "
+				"supported status test passed.");
+		} else {
+			fwts_failed(fw, LOG_LEVEL_HIGH, "UEFIRuntimeGetWakeupTime",
+				"Get the GetWakeupTime runtime service unsupported "
+				"via RuntimeServicesSupported variable. "
+				"But actually is supported by firmware");
+		}
+	}
+	return FWTS_OK;
+}
+
 static fwts_framework_minor_test uefirttime_tests[] = {
 	{ uefirttime_test1, "Test UEFI RT service get time interface." },
 	{ uefirttime_test2, "Test UEFI RT service get time interface, NULL time parameter." },
@@ -1197,7 +1344,7 @@ static fwts_framework_minor_test uefirttime_tests[] = {
 #if UEFI_IGNORE_UNSET_BITS
 	{ uefirttime_test37, "Test UEFI RT service set wakeup time interface, invalid daylight 0xfc." },
 #endif
-
+	{ uefirttime_test38, "Test UEFI RT time services supported status." },
 	{ NULL, NULL }
 };
 
-- 
2.7.4