88 lines
3 KiB
C
Executable file
88 lines
3 KiB
C
Executable file
/* NS-USBloader - native libraries for 'special purposes'
|
|
* Copyright (C) 2020 Dmitry Isaenko
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <fcntl.h>
|
|
#include <unistd.h>
|
|
#include <sys/ioctl.h>
|
|
#include <linux/usbdevice_fs.h>
|
|
#include <linux/usb/ch9.h>
|
|
#include <errno.h>
|
|
|
|
#include "nsusbloader_Utilities_RcmSmash.h"
|
|
|
|
struct usbdevfs_urb urb;
|
|
|
|
JNIEXPORT jint JNICALL Java_nsusbloader_Utilities_RcmSmash_smashLinux
|
|
(JNIEnv * jni_env, jclass this_class, jint bus_id, jint device_addr){
|
|
int ret_value;
|
|
|
|
char *usb_path = (char*)malloc(24 * sizeof(char));
|
|
|
|
sprintf(usb_path, "/dev/bus/usb/%03d/%03d", bus_id, device_addr);
|
|
int fd = open(usb_path, O_RDWR);
|
|
if (fd == -1)
|
|
return -1;
|
|
|
|
struct usb_ctrlrequest* ctrl_req;
|
|
|
|
__u8* buf[0x7000+sizeof(ctrl_req)];
|
|
|
|
ctrl_req = (struct usb_ctrlrequest *) buf;
|
|
ctrl_req->bRequestType = 0x82;
|
|
ctrl_req->bRequest = USB_REQ_GET_STATUS;
|
|
ctrl_req->wValue = 0;
|
|
ctrl_req->wIndex = 0;
|
|
ctrl_req->wLength = 0x7000;
|
|
|
|
memset(&urb, 0, sizeof(urb));
|
|
urb.type = USBDEVFS_URB_TYPE_CONTROL;
|
|
urb.endpoint = USB_DIR_IN | 0;
|
|
urb.buffer = buf;
|
|
urb.buffer_length = sizeof(buf);
|
|
//Submit request
|
|
ret_value = ioctl(fd, USBDEVFS_SUBMITURB, &urb);
|
|
// If we failed on this step, it's a VERY bad sign. Nothing to do, let's report failure.
|
|
if (ret_value != 0)
|
|
return ret_value;
|
|
// Wait 1/4 sec
|
|
usleep(250000);
|
|
struct usbdevfs_urb urb1;
|
|
// Let's pick reply (everybody does it, right? In non-blocking manner.)
|
|
ret_value = ioctl(fd, USBDEVFS_REAPURBNDELAY, &urb1);
|
|
if (ret_value < 0){
|
|
if (errno == EAGAIN){ // In case of resource temporarily unavailable
|
|
// Wired.. so much time left. Let's cancel it!
|
|
ret_value = ioctl(fd, USBDEVFS_DISCARDURB, &urb);
|
|
// And wait a bit more..
|
|
usleep(40000);
|
|
// And try to pick reply. Yes, it's still possible. See /usr/src/linux/drivers/usb/core/devio.c
|
|
ret_value = ioctl(fd, USBDEVFS_REAPURBNDELAY, &urb1);
|
|
}
|
|
}
|
|
// Leftovers.
|
|
free(usb_path);
|
|
// Let's try to close device, but even if we fail with this, nvm.
|
|
close(fd); // So we won't even write returned value somewhere.
|
|
return 0;
|
|
}
|
|
|
|
JNIEXPORT jint JNICALL Java_nsusbloader_Utilities_RcmSmash_smashWindows
|
|
(JNIEnv * jni_env, jclass this_class){
|
|
return -1;
|
|
}
|