feat: libusb backend

src/m8/dfu.c

@@ -0,0 +1,64 @@
+#include "dfu.h"
+
+#include <stdlib.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <string.h>
+
+#ifndef __APPLE__
+# include "usb-libusb.h"
+#endif
+#include "payload.h"
+
+bool dfu_check_status(const usb_handle_t *handle, uint8_t status, uint8_t state) {
+	struct {
+		uint8_t status, poll_timeout[3], state, str_idx;
+	} dfu_status;
+	transfer_ret_t transfer_ret;
+
+	return send_usb_control_request(handle, 0xA1, DFU_GETSTATUS, 0, 0, &dfu_status, sizeof(dfu_status), &transfer_ret)
+    && transfer_ret.ret == USB_TRANSFER_OK && transfer_ret.sz == sizeof(dfu_status)
+    && dfu_status.status == status && dfu_status.state == state;
+}
+
+bool dfu_device_set_await_reset(const usb_handle_t *handle) {
+	transfer_ret_t transfer_ret;
+
+	return send_usb_control_request_no_data(handle, 0x21, DFU_DNLOAD, 0, 0, 0, &transfer_ret)
+    && transfer_ret.ret == USB_TRANSFER_OK && transfer_ret.sz == 0
+    && dfu_check_status(handle, DFU_STATUS_OK, DFU_STATE_MANIFEST_SYNC)
+    && dfu_check_status(handle, DFU_STATUS_OK, DFU_STATE_MANIFEST)
+    && dfu_check_status(handle, DFU_STATUS_OK, DFU_STATE_MANIFEST_WAIT_RESET);
+}
+
+int dfu_serial_number_get_cpid(char *serial) {
+	char *cpid = strstr(serial, "CPID:");
+	if (cpid == NULL) { return -1; }
+	return strtol(cpid + 5, NULL, 16);
+}
+
+int dfu_serial_number_get_bdid(char *serial) {
+	char *bdid = strstr(serial, "BDID:");
+	if (bdid == NULL) { return -1; }
+	return strtol(bdid + 5, NULL, 16);
+}
+
+bool dfu_serial_number_is_in_dfu_mode(char *serial) {
+	char *DFU = strstr(serial, "SRTG");
+	return DFU != NULL;
+}
+
+bool dfu_serial_number_is_pwned(char *serial) {
+	char *pwnd = strstr(serial, "PWND:");
+	return pwnd != NULL;
+}
+
+bool dfu_serial_number_is_in_yolo_dfu(char *serial) {
+	char *yolo = strstr(serial, "YOLO");
+	return yolo != NULL;
+}
+
+bool device_serial_number_is_in_pongo_os(char *serial) {
+	char *pongo = strstr(serial, "SRTG:[PongoOS");
+	return pongo != NULL;
+}