From 296fe5fb468190e98250fd96adf62ebb0f08de14 Mon Sep 17 00:00:00 2001
From: Richard Hughes <richard@hughsie.com>
Date: Mon, 23 Jan 2023 17:30:11 +0000
Subject: [PATCH] trivial: Add a device flag specifying it is emulated

---
 libfwupd/fwupd-enums.c         | 4 ++++
 libfwupd/fwupd-enums.h         | 8 ++++++++
 libfwupdplugin/fu-usb-device.c | 6 ++++++
 src/fu-util-common.c           | 4 ++++
 4 files changed, 22 insertions(+)

diff --git a/libfwupd/fwupd-enums.c b/libfwupd/fwupd-enums.c
index 96839b960..933766aeb 100644
--- a/libfwupd/fwupd-enums.c
+++ b/libfwupd/fwupd-enums.c
@@ -209,6 +209,8 @@ fwupd_device_flag_to_string(FwupdDeviceFlags device_flag)
 		return "signed-payload";
 	if (device_flag == FWUPD_DEVICE_FLAG_UNSIGNED_PAYLOAD)
 		return "unsigned-payload";
+	if (device_flag == FWUPD_DEVICE_FLAG_EMULATED)
+		return "emulated";
 	if (device_flag == FWUPD_DEVICE_FLAG_UNKNOWN)
 		return "unknown";
 	return NULL;
@@ -328,6 +330,8 @@ fwupd_device_flag_from_string(const gchar *device_flag)
 		return FWUPD_DEVICE_FLAG_SIGNED_PAYLOAD;
 	if (g_strcmp0(device_flag, "unsigned-payload") == 0)
 		return FWUPD_DEVICE_FLAG_UNSIGNED_PAYLOAD;
+	if (g_strcmp0(device_flag, "emulated") == 0)
+		return FWUPD_DEVICE_FLAG_EMULATED;
 	return FWUPD_DEVICE_FLAG_UNKNOWN;
 }
 
diff --git a/libfwupd/fwupd-enums.h b/libfwupd/fwupd-enums.h
index 23490bf47..af96ab6e3 100644
--- a/libfwupd/fwupd-enums.h
+++ b/libfwupd/fwupd-enums.h
@@ -527,6 +527,14 @@ typedef enum {
  * Since: 1.7.6
  */
 #define FWUPD_DEVICE_FLAG_UNSIGNED_PAYLOAD (1llu << 48)
+/**
+ * FWUPD_DEVICE_FLAG_EMULATED:
+ *
+ * The device is emulated and should not be recorded by the backend.
+ *
+ * Since: 1.8.11
+ */
+#define FWUPD_DEVICE_FLAG_EMULATED (1llu << 49)
 /**
  * FWUPD_DEVICE_FLAG_UNKNOWN:
  *
diff --git a/libfwupdplugin/fu-usb-device.c b/libfwupdplugin/fu-usb-device.c
index c91de4ea3..94c03f539 100644
--- a/libfwupdplugin/fu-usb-device.c
+++ b/libfwupdplugin/fu-usb-device.c
@@ -695,6 +695,12 @@ fu_usb_device_set_dev(FuUsbDevice *device, GUsbDevice *usb_device)
 	}
 
 #ifdef HAVE_GUSB
+#if G_USB_CHECK_VERSION(0, 4, 4)
+	/* propagate emulated flag */
+	if (usb_device != NULL && g_usb_device_is_emulated(usb_device))
+		fu_device_add_flag(FU_DEVICE(device), FWUPD_DEVICE_FLAG_EMULATED);
+#endif
+
 	/* set device ID automatically */
 	fu_device_set_physical_id(FU_DEVICE(device), g_usb_device_get_platform_id(usb_device));
 #endif
diff --git a/src/fu-util-common.c b/src/fu-util-common.c
index 125cdfad5..630cc16c3 100644
--- a/src/fu-util-common.c
+++ b/src/fu-util-common.c
@@ -1312,6 +1312,10 @@ fu_util_device_flag_to_string(guint64 device_flag)
 		/* TRANSLATORS: firmware payload is unsigned and it is possible to modify it */
 		return _("Unsigned Payload");
 	}
+	if (device_flag == FWUPD_DEVICE_FLAG_EMULATED) {
+		/* TRANSLATORS: this device is not actually real */
+		return _("Emulated");
+	}
 	if (device_flag == FWUPD_DEVICE_FLAG_SKIPS_RESTART) {
 		/* skip */
 		return NULL;