QEMU-S5L8950X/scripts/patches/idevicerestore-qemu-lab-boot.patch

--- a/src/dfu.c
+++ b/src/dfu.c
@@ -127,6 +127,9 @@
 int dfu_send_component(struct idevicerestore_client_t* client, plist_t build_identity, const char* component)
 {
 	char* path = NULL;
+	const char* qemu_lab_dir = getenv("IDEVICERESTORE_QEMU_LAB_DIR");
+	int qemu_lab_component = qemu_lab_dir && qemu_lab_dir[0] &&
+		(!strcmp(component, "iBSS") || !strcmp(component, "iBEC"));
 
 	// Use a specific TSS ticket for the Ap,LocalPolicy component
 	plist_t tss = client->tss;
@@ -137,7 +140,26 @@ int dfu_send_component(struct idevicerestore_client_t* client, plist_t build_ide
 	void* component_data = NULL;
 	size_t component_size = 0;
 
-	if (strcmp(component, "Ap,LocalPolicy") == 0) {
+	if (qemu_lab_component) {
+		const char* filename = !strcmp(component, "iBSS") ?
+			"iBSS.chain-encrypted.dfu" :
+			"iBEC.chain-nonce-encrypted.dfu";
+		size_t path_size = strlen(qemu_lab_dir) + strlen(filename) + 2;
+		path = malloc(path_size);
+		if (!path) {
+			logger(LL_ERROR, "Out of memory\n");
+			return -1;
+		}
+		snprintf(path, path_size, "%s/%s", qemu_lab_dir, filename);
+		if (read_file(path, &component_data, &component_size) < 0) {
+			logger(LL_ERROR, "Unable to read QEMU lab %s from %s\n", component, path);
+			free(path);
+			return -1;
+		}
+		logger(LL_INFO, "Using QEMU lab %s from %s\n", component, path);
+		free(path);
+		path = NULL;
+	} else if (strcmp(component, "Ap,LocalPolicy") == 0) {
 		// If Ap,LocalPolicy => Inject an empty policy
 		component_data = malloc(sizeof(lpol_file));
 		component_size = sizeof(lpol_file);
@@ -168,7 +190,11 @@ int dfu_send_component(struct idevicerestore_client_t* client, plist_t build_ide
 	void* data = NULL;
 	size_t size = 0;
 
-	if (personalize_component(client, component, component_data, component_size, tss, &data, &size) < 0) {
+	if (qemu_lab_component) {
+		data = component_data;
+		size = component_size;
+		component_data = NULL;
+	} else if (personalize_component(client, component, component_data, component_size, tss, &data, &size) < 0) {
 		logger(LL_ERROR, "Unable to get personalized component: %s\n", component);
 		free(component_data);
 		return -1;
@@ -176,7 +202,7 @@ int dfu_send_component(struct idevicerestore_client_t* client, plist_t build_ide
 	free(component_data);
 	component_data = NULL;
 
-	if (!client->image4supported && client->build_major > 8 && !(client->flags & FLAG_CUSTOM) && !strcmp(component, "iBEC")) {
+	if (!qemu_lab_component && !client->image4supported && client->build_major > 8 && !(client->flags & FLAG_CUSTOM) && !strcmp(component, "iBEC")) {
 		unsigned char* ticket = NULL;
 		unsigned int tsize = 0;
		if (tss_response_get_ap_ticket(client->tss, &ticket, &tsize) < 0) {
@@ -517,7 +543,8 @@ int dfu_enter_recovery(struct idevicerestore_client_t* client, plist_t build_ide
 		logger(LL_INFO, "Nonce: ");
 		logger_dump_hex(LL_INFO, client->nonce, client->nonce_size);
 
-		if (nonce_changed && !(client->flags & FLAG_CUSTOM)) {
+		if (nonce_changed && !(client->flags & FLAG_CUSTOM) &&
+		    !getenv("IDEVICERESTORE_QEMU_LAB_DIR")) {
 			// Welcome iOS5. We have to re-request the TSS with our nonce.
 			plist_free(client->tss);
 			if (get_tss_response(client, build_identity, &client->tss) < 0) {
--- a/src/idevicerestore.c
+++ b/src/idevicerestore.c
@@ -682,6 +682,11 @@ int idevicerestore_start(struct idevicerestore_client_t* client)
 		tss_enabled = 0;
 		logger(LL_INFO, "Custom firmware requested; TSS has been disabled.\n");
 	}
+	if (getenv("IDEVICERESTORE_QEMU_LAB_DIR")) {
+		/* The QEMU wrapper supplies locally personalized iBSS/iBEC images. */
+		tss_enabled = 0;
+		logger(LL_INFO, "QEMU lab boot requested; external TSS has been disabled.\n");
+	}
 
 	if (client->mode == MODE_RESTORE) {
 		if (!(client->flags & FLAG_ALLOW_RESTORE_MODE)) {
@@ -1111,11 +1116,16 @@ int idevicerestore_start(struct idevicerestore_client_t* client)
 
 	/* check if all components we need are actually there */
 	logger(LL_INFO, "Checking IPSW for required components...\n");
-	if (build_identity_check_components_in_ipsw(build_identity, client->ipsw) < 0) {
+	if (!getenv("IDEVICERESTORE_QEMU_LAB_BOOT_ONLY") &&
+	    build_identity_check_components_in_ipsw(build_identity, client->ipsw) < 0) {
 		logger(LL_ERROR, "Could not find all required components in IPSW %s\n", client->ipsw->path);
 		return -1;
 	}
-	logger(LL_INFO, "All required components found in IPSW\n");
+	if (getenv("IDEVICERESTORE_QEMU_LAB_BOOT_ONLY")) {
+		logger(LL_INFO, "QEMU lab boot only needs BuildManifest plus local iBSS/iBEC.\n");
+	} else {
+		logger(LL_INFO, "All required components found in IPSW\n");
+	}
 
 	/* Get OS (filesystem) name from build identity */
 	char* os_path = NULL;
@@ -1466,6 +1476,10 @@ int idevicerestore_start(struct idevicerestore_client_t* client)
 		mutex_unlock(&client->device_event_mutex);
 	}
 	idevicerestore_progress(client, RESTORE_STEP_PREPARE, 0.5);
+	if (getenv("IDEVICERESTORE_QEMU_LAB_BOOT_ONLY")) {
+		logger(LL_INFO, "QEMU lab iBEC is running in Recovery mode.\n");
+		return 0;
+	}
 	if (client->flags & FLAG_QUIT) {
 		return -1;
 	}