Repository: lcgamboa/USBIP-Virtual-USB-Device
Branch: master
Commit: 311603da9dbb
Files: 14
Total size: 124.1 KB

Directory structure:
gitextract_pucyyekq/

├── README.md
├── c/
│   ├── LICENSE
│   ├── Makefile
│   ├── Makefile.cross
│   ├── cdc-acm.c
│   ├── hid-keyboard.c
│   ├── hid-mouse.c
│   ├── usbip.c
│   └── usbip.h
├── doc/
│   └── usbip_protocol.txt
└── python/
    ├── LICENSE
    ├── USBIP.py
    ├── hid-keyboard.py
    └── hid-mouse.py

================================================
FILE CONTENTS
================================================

================================================
FILE: README.md
================================================
USBIP hardware emulation (Virtual USB device) 
=============

Hack fixes for mouse hid work with Linux 4.2 (and Windows 10)

keyboard hid added.

in Linux use:<br>
  python hid-xxxx.py for python version<br>
or<br>
  ./hid-xxxx for c version<br>
and<br>
  usbip attach -r 127.0.0.1 -b 1-1<br>
  (remember to load kernel modules usbip-core and vhci-hcd)<br>   

for list device use:<br>
  usbip list -r 127.0.0.1 

More details on: <br>
http://breaking-the-system.blogspot.com/2014/08/emulating-usb-devices-in-python-with-no.html <br>

This code uses the USB/IP project: http://usbip.sourceforge.net/ to emulate usb devices. <br>
In this example I showed how to emulate HID mouse device. <br>
This code can be easily changed to support any usb device. <br>
This code is very experimental, use with care. <br>
In the HID example there is a bug with USB/IP driver that causes blue screen on de-attach: <br>
http://sourceforge.net/p/usbip/discussion/418507/thread/7ff86875/?page=0 <br>
It doesnt happen with other devices I tested. <br>




================================================
FILE: c/LICENSE
================================================
		    GNU GENERAL PUBLIC LICENSE
		       Version 2, June 1991

 Copyright (C) 1989, 1991 Free Software Foundation, Inc.
     59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 Everyone is permitted to copy and distribute verbatim copies
 of this license document, but changing it is not allowed.

			    Preamble

  The licenses for most software are designed to take away your
freedom to share and change it.  By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users.  This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it.  (Some other Free Software Foundation software is covered by
the GNU Library General Public License instead.)  You can apply it to
your programs, too.

  When we speak of free software, we are referring to freedom, not
price.  Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
this service if you wish), that you receive source code or can get it
if you want it, that you can change the software or use pieces of it
in new free programs; and that you know you can do these things.

  To protect your rights, we need to make restrictions that forbid
anyone to deny you these rights or to ask you to surrender the rights.
These restrictions translate to certain responsibilities for you if you
distribute copies of the software, or if you modify it.

  For example, if you distribute copies of such a program, whether
gratis or for a fee, you must give the recipients all the rights that
you have.  You must make sure that they, too, receive or can get the
source code.  And you must show them these terms so they know their
rights.

  We protect your rights with two steps: (1) copyright the software, and
(2) offer you this license which gives you legal permission to copy,
distribute and/or modify the software.

  Also, for each author's protection and ours, we want to make certain
that everyone understands that there is no warranty for this free
software.  If the software is modified by someone else and passed on, we
want its recipients to know that what they have is not the original, so
that any problems introduced by others will not reflect on the original
authors' reputations.

  Finally, any free program is threatened constantly by software
patents.  We wish to avoid the danger that redistributors of a free
program will individually obtain patent licenses, in effect making the
program proprietary.  To prevent this, we have made it clear that any
patent must be licensed for everyone's free use or not licensed at all.

  The precise terms and conditions for copying, distribution and
modification follow.

		    GNU GENERAL PUBLIC LICENSE
   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

  0. This License applies to any program or other work which contains
a notice placed by the copyright holder saying it may be distributed
under the terms of this General Public License.  The "Program", below,
refers to any such program or work, and a "work based on the Program"
means either the Program or any derivative work under copyright law:
that is to say, a work containing the Program or a portion of it,
either verbatim or with modifications and/or translated into another
language.  (Hereinafter, translation is included without limitation in
the term "modification".)  Each licensee is addressed as "you".

Activities other than copying, distribution and modification are not
covered by this License; they are outside its scope.  The act of
running the Program is not restricted, and the output from the Program
is covered only if its contents constitute a work based on the
Program (independent of having been made by running the Program).
Whether that is true depends on what the Program does.

  1. You may copy and distribute verbatim copies of the Program's
source code as you receive it, in any medium, provided that you
conspicuously and appropriately publish on each copy an appropriate
copyright notice and disclaimer of warranty; keep intact all the
notices that refer to this License and to the absence of any warranty;
and give any other recipients of the Program a copy of this License
along with the Program.

You may charge a fee for the physical act of transferring a copy, and
you may at your option offer warranty protection in exchange for a fee.

  2. You may modify your copy or copies of the Program or any portion
of it, thus forming a work based on the Program, and copy and
distribute such modifications or work under the terms of Section 1
above, provided that you also meet all of these conditions:

    a) You must cause the modified files to carry prominent notices
    stating that you changed the files and the date of any change.

    b) You must cause any work that you distribute or publish, that in
    whole or in part contains or is derived from the Program or any
    part thereof, to be licensed as a whole at no charge to all third
    parties under the terms of this License.

    c) If the modified program normally reads commands interactively
    when run, you must cause it, when started running for such
    interactive use in the most ordinary way, to print or display an
    announcement including an appropriate copyright notice and a
    notice that there is no warranty (or else, saying that you provide
    a warranty) and that users may redistribute the program under
    these conditions, and telling the user how to view a copy of this
    License.  (Exception: if the Program itself is interactive but
    does not normally print such an announcement, your work based on
    the Program is not required to print an announcement.)

These requirements apply to the modified work as a whole.  If
identifiable sections of that work are not derived from the Program,
and can be reasonably considered independent and separate works in
themselves, then this License, and its terms, do not apply to those
sections when you distribute them as separate works.  But when you
distribute the same sections as part of a whole which is a work based
on the Program, the distribution of the whole must be on the terms of
this License, whose permissions for other licensees extend to the
entire whole, and thus to each and every part regardless of who wrote it.

Thus, it is not the intent of this section to claim rights or contest
your rights to work written entirely by you; rather, the intent is to
exercise the right to control the distribution of derivative or
collective works based on the Program.

In addition, mere aggregation of another work not based on the Program
with the Program (or with a work based on the Program) on a volume of
a storage or distribution medium does not bring the other work under
the scope of this License.

  3. You may copy and distribute the Program (or a work based on it,
under Section 2) in object code or executable form under the terms of
Sections 1 and 2 above provided that you also do one of the following:

    a) Accompany it with the complete corresponding machine-readable
    source code, which must be distributed under the terms of Sections
    1 and 2 above on a medium customarily used for software interchange; or,

    b) Accompany it with a written offer, valid for at least three
    years, to give any third party, for a charge no more than your
    cost of physically performing source distribution, a complete
    machine-readable copy of the corresponding source code, to be
    distributed under the terms of Sections 1 and 2 above on a medium
    customarily used for software interchange; or,

    c) Accompany it with the information you received as to the offer
    to distribute corresponding source code.  (This alternative is
    allowed only for noncommercial distribution and only if you
    received the program in object code or executable form with such
    an offer, in accord with Subsection b above.)

The source code for a work means the preferred form of the work for
making modifications to it.  For an executable work, complete source
code means all the source code for all modules it contains, plus any
associated interface definition files, plus the scripts used to
control compilation and installation of the executable.  However, as a
special exception, the source code distributed need not include
anything that is normally distributed (in either source or binary
form) with the major components (compiler, kernel, and so on) of the
operating system on which the executable runs, unless that component
itself accompanies the executable.

If distribution of executable or object code is made by offering
access to copy from a designated place, then offering equivalent
access to copy the source code from the same place counts as
distribution of the source code, even though third parties are not
compelled to copy the source along with the object code.

  4. You may not copy, modify, sublicense, or distribute the Program
except as expressly provided under this License.  Any attempt
otherwise to copy, modify, sublicense or distribute the Program is
void, and will automatically terminate your rights under this License.
However, parties who have received copies, or rights, from you under
this License will not have their licenses terminated so long as such
parties remain in full compliance.

  5. You are not required to accept this License, since you have not
signed it.  However, nothing else grants you permission to modify or
distribute the Program or its derivative works.  These actions are
prohibited by law if you do not accept this License.  Therefore, by
modifying or distributing the Program (or any work based on the
Program), you indicate your acceptance of this License to do so, and
all its terms and conditions for copying, distributing or modifying
the Program or works based on it.

  6. Each time you redistribute the Program (or any work based on the
Program), the recipient automatically receives a license from the
original licensor to copy, distribute or modify the Program subject to
these terms and conditions.  You may not impose any further
restrictions on the recipients' exercise of the rights granted herein.
You are not responsible for enforcing compliance by third parties to
this License.

  7. If, as a consequence of a court judgment or allegation of patent
infringement or for any other reason (not limited to patent issues),
conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License.  If you cannot
distribute so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you
may not distribute the Program at all.  For example, if a patent
license would not permit royalty-free redistribution of the Program by
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Program.

If any portion of this section is held invalid or unenforceable under
any particular circumstance, the balance of the section is intended to
apply and the section as a whole is intended to apply in other
circumstances.

It is not the purpose of this section to induce you to infringe any
patents or other property right claims or to contest validity of any
such claims; this section has the sole purpose of protecting the
integrity of the free software distribution system, which is
implemented by public license practices.  Many people have made
generous contributions to the wide range of software distributed
through that system in reliance on consistent application of that
system; it is up to the author/donor to decide if he or she is willing
to distribute software through any other system and a licensee cannot
impose that choice.

This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.

  8. If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only in or among
countries not thus excluded.  In such case, this License incorporates
the limitation as if written in the body of this License.

  9. The Free Software Foundation may publish revised and/or new versions
of the General Public License from time to time.  Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.

Each version is given a distinguishing version number.  If the Program
specifies a version number of this License which applies to it and "any
later version", you have the option of following the terms and conditions
either of that version or of any later version published by the Free
Software Foundation.  If the Program does not specify a version number of
this License, you may choose any version ever published by the Free Software
Foundation.

  10. If you wish to incorporate parts of the Program into other free
programs whose distribution conditions are different, write to the author
to ask for permission.  For software which is copyrighted by the Free
Software Foundation, write to the Free Software Foundation; we sometimes
make exceptions for this.  Our decision will be guided by the two goals
of preserving the free status of all derivatives of our free software and
of promoting the sharing and reuse of software generally.

			    NO WARRANTY

  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
REPAIR OR CORRECTION.

  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.

		     END OF TERMS AND CONDITIONS

	    How to Apply These Terms to Your New Programs

  If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.

  To do so, attach the following notices to the program.  It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.

    <one line to give the program's name and a brief idea of what it does.>
    Copyright (C) <year>  <name of author>

    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 2 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, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA


Also add information on how to contact you by electronic and paper mail.

If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:

    Gnomovision version 69, Copyright (C) year  name of author
    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
    This is free software, and you are welcome to redistribute it
    under certain conditions; type `show c' for details.

The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License.  Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.

You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary.  Here is a sample; alter the names:

  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
  `Gnomovision' (which makes passes at compilers) written by James Hacker.

  <signature of Ty Coon>, 1 April 1989
  Ty Coon, President of Vice

This General Public License does not permit incorporating your program into
proprietary programs.  If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library.  If this is what you want to do, use the GNU Library General
Public License instead of this License.


================================================
FILE: c/Makefile
================================================
CC=gcc
CFLAGS= -Wall -DLINUX 
PROGS= hid-mouse hid-keyboard cdc-acm

all:	${PROGS}

hid-mouse:	usbip.c hid-mouse.c 
		${CC} ${CFLAGS} usbip.c -c 
		${CC} ${CFLAGS} usbip.o hid-mouse.c -o hid-mouse 

hid-keyboard:	usbip.c hid-keyboard.c 
		${CC} ${CFLAGS} usbip.c -c 
		${CC} ${CFLAGS} usbip.o hid-keyboard.c -o hid-keyboard
	
cdc-acm:	usbip.c cdc-acm.c 
		${CC} ${CFLAGS} usbip.c -c 
		${CC} ${CFLAGS} usbip.o cdc-acm.c -o cdc-acm
clean:
		rm -f ${PROGS} core core.* *.o temp.* *.out typescript*


================================================
FILE: c/Makefile.cross
================================================
CC=i686-w64-mingw32-gcc
CFLAGS= -Wall -mno-ms-bitfields
PROGS= hid-mouse hid-keyboard cdc-acm

all:	${PROGS}

hid-mouse:	usbip.c hid-mouse.c 
		${CC} ${CFLAGS} usbip.c -c 
		${CC} ${CFLAGS} usbip.o hid-mouse.c -o hid-mouse.exe -lws2_32 

hid-keyboard:	usbip.c hid-keyboard.c 
		${CC} ${CFLAGS} usbip.c -c 
		${CC} ${CFLAGS} usbip.o hid-keyboard.c -o hid-keyboard.exe -lws2_32 

cdc-acm:	usbip.c cdc-acm.c 
		${CC} ${CFLAGS} usbip.c -c 
		${CC} ${CFLAGS} usbip.o cdc-acm.c -o cdc-acm.exe -lws2_32 

clean:
		rm -f ${PROGS} core core.* *.o temp.* *.out typescript* *.exe


================================================
FILE: c/cdc-acm.c
================================================
/* ########################################################################

   USBIP hardware emulation 

   ########################################################################

   Copyright (c) : 2016  Luis Claudio Gambôa Lopes

   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 2, 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, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

   For e-mail suggestions :  lcgamboa@yahoo.com
   ######################################################################## */

#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "usbip.h"

/* Device Descriptor */
const USB_DEVICE_DESCRIPTOR dev_dsc=
{
    0x12,                   // Size of this descriptor in bytes
    0x01,                   // DEVICE descriptor type
    0x0200,                 // USB Spec Release Number in BCD format
    0x02,                   // Class Code
    0x00,                   // Subclass code
    0x00,                   // Protocol code
    0x10,                   // Max packet size for EP0, see usb_config.h
    0x2706,                 // Vendor ID
    0x000A,                 // Product ID
    0x0100,                 // Device release number in BCD format
    0x01,                   // Manufacturer string index
    0x03,                   // Product string index
    0x00,                   // Device serial number string index
    0x01                    // Number of possible configurations
};

const USB_DEVICE_QUALIFIER_DESCRIPTOR dev_qua = { 
    0x0A,       // bLength
    0x06,       // bDescriptorType
    0x0200,     // bcdUSB 
    0x02,       // bDeviceClass
    0x00,       // bDeviceSubClass
    0x00,       // bDeviceProtocol
    0x10,       // bMaxPacketSize
    0x01,       // iSerialNumber
    0x00        //bNumConfigurations*/
};


/* Configuration 1 Descriptor */
const CONFIG_CDC  configuration_cdc={{
    /* Configuration Descriptor */
    0x09,//sizeof(USB_CFG_DSC),    // Size of this descriptor in bytes
    USB_DESCRIPTOR_CONFIGURATION,                // CONFIGURATION descriptor type
    sizeof(CONFIG_CDC),                 // Total length of data for this cfg
    2,                      // Number of interfaces in this cfg
    1,                      // Index value of this configuration
    0,                      // Configuration string index
    0xC0,      
    50,                     // Max power consumption (2X mA)
    },{ 
    /* Interface Descriptor */
    0x09,//sizeof(USB_INTF_DSC),   // Size of this descriptor in bytes
    USB_DESCRIPTOR_INTERFACE,               // INTERFACE descriptor type
    0,                      // Interface Number
    0,                      // Alternate Setting Number
    1,                      // Number of endpoints in this intf
    0x02,                   // Class code
    0x02,                   // Subclass code
    0x01,                   // Protocol code
    0                       // Interface string index
    },{
    /* CDC Class-Specific Descriptors */
    /* Header Functional Descriptor */    
    0x05,                   // bFNLength
    0x24,                   // bDscType
    0x00,                   // bDscSubType
    0x0110                  // bcdCDC
    },{ 
    /* Call Management Functional Descriptor */   
    0x05,                   // bFNLength
    0x24,                   // bDscType
    0x01,                   // bDscSubType
    0x01,                   // bmCapabilities
    0x01                    // bDataInterface
    },{
    /* Abstract Control Management Functional Descriptor */    
    0x04,                   // bFNLength
    0x24,                   // bDscType
    0x02,                   // bDscSubType 
    0x02                    // bmCapabilities 
    },{
    /* Union Functional Descriptor */    
    0x05,                   // bFNLength
    0x24,                   // bDscType
    0x06,                   // bDscSubType
    0x00,                   // bMasterIntf
    0x01                    // bSaveIntf0
    },{
     /* Endpoint Descriptor */
    0x07,/*sizeof(USB_EP_DSC)*/
    USB_DESCRIPTOR_ENDPOINT,    //Endpoint Descriptor
    0x81,                       //EndpointAddress
    0x03,                       //Attributes
    0x0008,                     //size
    0x0A                        //Interval
    },{    
    /* Interface Descriptor */
    0x09,//sizeof(USB_INTF_DSC),   // Size of this descriptor in bytes
    USB_DESCRIPTOR_INTERFACE,               // INTERFACE descriptor type
    1,                      // Interface Number
    0,                      // Alternate Setting Number
    2,                      // Number of endpoints in this intf
    0x0A,                   // Class code
    0x00,                   // Subclass code
    0x00,                   // Protocol code
    2,                      // Interface string index
    },{
    /* Endpoint Descriptor */
    0x07,/*sizeof(USB_EP_DSC)*/
    USB_DESCRIPTOR_ENDPOINT,    //Endpoint Descriptor
    0x02,                       //EndpointAddress
    0x02,                       //Attributes
    0x0020,                     //size
    0x00                        //Interval
    },{
    /* Endpoint Descriptor */
    0x07,/*sizeof(USB_EP_DSC)*/
    USB_DESCRIPTOR_ENDPOINT,    //Endpoint Descriptor
    0x82,                       //EndpointAddress
    0x02,                       //Attributes
    0x0020,                     //size
    0x00                        //Interval
}};


const unsigned char string_0[] = { // available languages  descriptor
		0x04,                  
                USB_DESCRIPTOR_STRING, 
		0x09, 
                0x04 
		};

const unsigned char string_1[] = { //
		0x0A, 
                USB_DESCRIPTOR_STRING, // bLength, bDscType
		'T', 0x00, //
		'e', 0x00, //
		's', 0x00, //
		't', 0x00, //
		};

const unsigned char string_2[] = { //
		0x10, 
                USB_DESCRIPTOR_STRING, //
		'U', 0x00, //
		'S', 0x00, //
		'B', 0x00, //
		' ', 0x00, //
		'C', 0x00, //
		'D', 0x00, //
		'C', 0x00, //
		};

const unsigned char string_3[] = { //
		0x18, 
                USB_DESCRIPTOR_STRING, //
		'V', 0x00, //
		'i', 0x00, //
		'r', 0x00, //
		't', 0x00, //
		'u', 0x00, //
		'a', 0x00, //
		'l', 0x00, //
		' ', 0x00, //
                'U', 0x00, //
                'S', 0x00, //
                'B', 0x00, //
		};


const char *configuration = (const char *)&configuration_cdc; 

const USB_INTERFACE_DESCRIPTOR *interfaces[]={ &configuration_cdc.dev_int0, &configuration_cdc.dev_int1};

const unsigned char *strings[]={string_0, string_1, string_2, string_3};


#define BSIZE 64 
char buffer[BSIZE+1];
int  bsize=0;


void handle_data(int sockfd, USBIP_RET_SUBMIT *usb_req, int bl)
{   
    
  if(usb_req->ep == 0x01)
  {  
    printf("EP1 received \n"); 
    
    if(usb_req->direction == 0) //input
    { 
      printf("direction=input\n");  
      bsize=recv (sockfd, (char *) buffer , bl, 0);
      send_usb_req(sockfd, usb_req,"", 0, 0);
      buffer[bsize+1]=0; //string terminator
      printf("received (%s)\n",buffer);
    }
    else
    {    
        printf("direction=output\n");  
    }
    //not supported
    send_usb_req(sockfd, usb_req, "", 0, 0);
    usleep(500);
  }
  
  if((usb_req->ep == 0x02))
  {
    printf("EP2 received \n"); 
    if(usb_req->direction == 0) //input
    { 
      int i;
      printf("direction=input\n");  
      bsize=recv (sockfd, (char *) buffer , bl, 0);
      send_usb_req(sockfd, usb_req,"", 0, 0);
      buffer[bsize+1]=0; //string terminator
      printf("received (%s)\n",buffer);
      for(i=0;i<bsize;i++)
          printf("%02X",(unsigned char)buffer[i]);
      printf("\n");       
    }
    else //output
    {
      printf("direction=output\n");  
      if(bsize != 0)
      {   
        int i;
        for(i=0;i<bsize;i++)//increment received char
           buffer[i]+=1;

        send_usb_req(sockfd, usb_req, buffer, bsize, 0);    
        printf("sending (%s)\n",buffer);
        bsize=0;
      }
      else
      {
        send_usb_req(sockfd, usb_req,"", 0, 0);    
        usleep(500);
        printf("no data disponible\n");
      }
    }
  }
  
};


typedef struct _LINE_CODING
{
    word dwDTERate;  //in bits per second
    byte bCharFormat;//0-1 stop; 1-1.5 stop; 2-2 stop bits
    byte ParityType; //0 none; 1- odd; 2 -even; 3-mark; 4 -space
    byte bDataBits;  //5,6,7,8 or 16
}LINE_CODING;



LINE_CODING linec;

unsigned short linecs=0;

void handle_unknown_control(int sockfd, StandardDeviceRequest * control_req, USBIP_RET_SUBMIT *usb_req)
{
        if(control_req->bmRequestType == 0x21)//Abstract Control Model Requests
        { 
          if(control_req->bRequest == 0x20)  //SET_LINE_CODING
          {
            printf("SET_LINE_CODING\n");   
            if ((recv (sockfd, (char *) &linec , control_req->wLength, 0)) != control_req->wLength)
            {
              printf ("receive error : %s \n", strerror (errno));
              exit(-1);
            };
            send_usb_req(sockfd,usb_req,"",0,0);
          } 
          if(control_req->bRequest == 0x21)  //GET_LINE_CODING
          {
            printf("GET_LINE_CODING\n");  
            send_usb_req(sockfd,usb_req,(char *)&linec,7,0);
          }
          if(control_req->bRequest == 0x22)  //SET_LINE_CONTROL_STATE
          {
            linecs=control_req->wValue0;
            printf("SET_LINE_CONTROL_STATE 0x%02X\n", linecs);   
            send_usb_req(sockfd,usb_req,"",0,0);
          }
          if(control_req->bRequest == 0x23)  //SEND_BREAK
          {
            printf("SEND_BREAK\n");   
            send_usb_req(sockfd,usb_req,"",0,0);
          }
        } 

};

int main()
{
   printf("cdc started....\n");
   usbip_run(&dev_dsc);
}



================================================
FILE: c/hid-keyboard.c
================================================
/* ########################################################################

   USBIP hardware emulation 

   ########################################################################

   Copyright (c) : 2016  Luis Claudio Gambôa Lopes

   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 2, 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, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

   For e-mail suggestions :  lcgamboa@yahoo.com
   ######################################################################## */

#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "usbip.h"

/* Device Descriptor */
const USB_DEVICE_DESCRIPTOR dev_dsc=
{
    0x12,                   // Size of this descriptor in bytes
    0x01,                   // DEVICE descriptor type
    0x0110,                 // USB Spec Release Number in BCD format
    0x00,                   // Class Code
    0x00,                   // Subclass code
    0x00,                   // Protocol code
    0x08,                   // Max packet size for EP0, see usb_config.h
    0x2706,                 // Vendor ID
    0x0100,                 // Product ID: Mouse in a circle fw demo
    0x0000,                 // Device release number in BCD format
    0x00,                   // Manufacturer string index
    0x00,                   // Product string index
    0x00,                   // Device serial number string index
    0x01                    // Number of possible configurations
};

/* Configuration 1 Descriptor */
const CONFIG_HID  configuration_hid={{
    /* Configuration Descriptor */
    0x09,//sizeof(USB_CFG_DSC),    // Size of this descriptor in bytes
    USB_DESCRIPTOR_CONFIGURATION,                // CONFIGURATION descriptor type
    0x0022,                 // Total length of data for this cfg
    1,                      // Number of interfaces in this cfg
    1,                      // Index value of this configuration
    0,                      // Configuration string index
    0x80,      
    50,                     // Max power consumption (2X mA)
    },{ 
    /* Interface Descriptor */
    0x09,//sizeof(USB_INTF_DSC),   // Size of this descriptor in bytes
    USB_DESCRIPTOR_INTERFACE,               // INTERFACE descriptor type
    0,                      // Interface Number
    0,                      // Alternate Setting Number
    1,                      // Number of endpoints in this intf
    0x03,                   // Class code
    0x01,                   // Subclass code
    0x01,                   // Protocol code
    0,                      // Interface string index
    },{
    /* HID Class-Specific Descriptor */
    0x09,               // Size of this descriptor in bytes RRoj hack
    0x21,                // HID descriptor type
    0x0001,                 // HID Spec Release Number in BCD format (1.11)
    0x00,                   // Country Code (0x00 for Not supported)
    0x01,         // Number of class descriptors, see usbcfg.h
    0x22,                // Report descriptor type
    0x003F,           // Size of the report descriptor
    },{
    /* Endpoint Descriptor */
    0x07,/*sizeof(USB_EP_DSC)*/
    USB_DESCRIPTOR_ENDPOINT,    //Endpoint Descriptor
    0x81,            //EndpointAddress
    0x03,                       //Attributes
    0x0008,                  //size
    0xFF                        //Interval
}};

const char *configuration = (const char *)&configuration_hid; 
const USB_INTERFACE_DESCRIPTOR *interfaces[]={ &configuration_hid.dev_int };
const unsigned char *strings[]={};
const USB_DEVICE_QUALIFIER_DESCRIPTOR  dev_qua={};


//Class specific descriptor - HID keyboard
const byte keyboard_report[0x3F]={
               0x05, 0x01, 
	       0x09, 0x06,		//Usage Page (Generic Desktop),
	       0xA1, 0x01,		//Usage (Keyboard),
	       0x05, 0x07, 		//Collection (Application),
	       0x19, 0xE0, 		//Usage Page (Key Codes);
	       0x29, 0xE7, 		//Usage Minimum (224),
	       0x15, 0x00, 		//Usage Maximum (231),
	       0x25, 0x01, 		//Logical Minimum (0),
	       0x75, 0x01, 		//Logical Maximum (1),
	       0x95, 0x08, 		//Report Size (1),
	       0x81, 0x02, 		//Report Count (8),
	       0x95, 0x01, 		//Input (Data, Variable, Absolute),
	       0x75, 0x08, 		//Report Count (1),
	       0x81, 0x01, 		//Report Size (8),
	       0x95, 0x05, 		//Input (Constant),
	       0x75, 0x01, 		//Report Count (5),
	       0x05, 0x08, 		//Report Size (1),
	       0x19, 0x01, 		//Usage Page (Page# for LEDs),
	       0x29, 0x05, 		//Usage Minimum (1),
	       0x91, 0x02, 		//Usage Maximum (5),
	       0x95, 0x01, 		//Output (Data, Variable, Absolute),
	       0x75, 0x03, 		//Report Count (1),
	       0x91, 0x01, 		//Report Size (3),
	       0x95, 0x06, 		//Output (Constant),
	       0x75, 0x08, 		//Report Count (6),
	       0x15, 0x00, 		//Report Size (8),
	       0x25, 0x65, 		//Logical Minimum (0),
	       0x05, 0x07, 		//Logical Maximum(101),
	       0x19, 0x00, 		//Usage Page (Key Codes),
	       0x29, 0x65, 		//Usage Minimum (0),
	       0x81, 0x00, 		//Usage Maximum (101), #Input (Data, Array),
	       0xC0};  			//End Collection 


void handle_data(int sockfd, USBIP_RET_SUBMIT *usb_req, int bl)
{
        // Sending random keyboard data
        // Send data only for 5 seconds
         static int  count=0;
         char return_val[8]; 
         printf("data\n");
         memset(return_val,0,8);
         if (count < 20)
         {
            if((count % 2 ) == 0)
              return_val[2]=(char)((((25l*rand())/RAND_MAX))+4);
            send_usb_req(sockfd, usb_req, return_val, 8, 0);
         } 
         usleep(250000);
         count=count+1;
};

void handle_unknown_control(int sockfd, StandardDeviceRequest * control_req, USBIP_RET_SUBMIT *usb_req)
{
        if(control_req->bmRequestType == 0x81)
        { 
          if(control_req->bRequest == 0x6)  //# Get Descriptor
          {
            if(control_req->wValue1 == 0x22)  // send initial report
            {
              printf("send initial report\n");
              send_usb_req(sockfd,usb_req,(char *) keyboard_report, 0x3F, 0);
            }
          } 
        } 
        if(control_req->bmRequestType == 0x21)  // Host Request
        {
            if(control_req->bRequest == 0x0a)  // set idle
            { 
                printf("Idle\n");
                // Idle
                send_usb_req(sockfd,usb_req,"",0,0);
            }
            if(control_req->bRequest == 0x09)  // set report
            { 
                printf("set report\n");
                char data[20];
                if ((recv (sockfd, data , control_req->wLength, 0)) != control_req->wLength)
                {
                   printf ("receive error : %s \n", strerror (errno));
                   exit(-1);
                };
                send_usb_req(sockfd,usb_req,"",0,0);
            }
        }    
};

int main()
{
   printf("hid keyboard started....\n");
   usbip_run(&dev_dsc);
}



================================================
FILE: c/hid-mouse.c
================================================
/* ########################################################################

   USBIP hardware emulation 

   ########################################################################

   Copyright (c) : 2016  Luis Claudio Gambôa Lopes

   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 2, 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, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

   For e-mail suggestions :  lcgamboa@yahoo.com
   ######################################################################## */

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "usbip.h"

/* Device Descriptor */
const USB_DEVICE_DESCRIPTOR dev_dsc=
{
    0x12,                   // Size of this descriptor in bytes
    0x01,                   // DEVICE descriptor type
    0x0110,                 // USB Spec Release Number in BCD format
    0x00,                   // Class Code
    0x00,                   // Subclass code
    0x00,                   // Protocol code
    0x08,                   // Max packet size for EP0, see usb_config.h
    0x2706,                 // Vendor ID
    0x0000,                 // Product ID: Mouse in a circle fw demo
    0x0000,                 // Device release number in BCD format
    0x00,                   // Manufacturer string index
    0x00,                   // Product string index
    0x00,                   // Device serial number string index
    0x01                    // Number of possible configurations
};


/* Configuration 1 Descriptor */
const CONFIG_HID configuration_hid={
{
    /* Configuration Descriptor */
    0x09,//sizeof(USB_CFG_DSC),    // Size of this descriptor in bytes
    USB_DESCRIPTOR_CONFIGURATION,                // CONFIGURATION descriptor type
    0x0022,                 // Total length of data for this cfg
    1,                      // Number of interfaces in this cfg
    1,                      // Index value of this configuration
    0,                      // Configuration string index
    0x80,                   //Configuration characteristics
    50                      // Max power consumption (2X mA)
},{
    /* Interface Descriptor */
    0x09,//sizeof(USB_INTF_DSC),   // Size of this descriptor in bytes
    USB_DESCRIPTOR_INTERFACE,               // INTERFACE descriptor type
    0,                      // Interface Number
    0,                      // Alternate Setting Number
    1,                      // Number of endpoints in this intf
    0x03,                   // Class code
    0x01,                   // Subclass code
    0x02,                   // Protocol code
    0x00                    // Interface string index
},{
    /* HID Class-Specific Descriptor */
    0x09,                   // Size of this descriptor in bytes RRoj hack
    0x21,                   // HID descriptor type
    0x0001,                 // HID Spec Release Number in BCD format (1.11)
    0x00,                   // Country Code (0x00 for Not supported)
    0x01,                   // Number of class descriptors, see usbcfg.h
    0x22,                   // Report descriptor type
    0x0034                  // Size of the report descriptor
},{
    /* Endpoint Descriptor */
    0x07,/*sizeof(USB_EP_DSC)*/
    USB_DESCRIPTOR_ENDPOINT,    //Endpoint Descriptor
    0x81,                   //EndpointAddress
    0x03,                   //Attributes
    0x0008,                 //size
    0xFF                    //Interval
}};

const char *configuration = (const char *) &configuration_hid; 
const USB_INTERFACE_DESCRIPTOR *interfaces[]={ &configuration_hid.dev_int };
const unsigned char *strings[]={};
const USB_DEVICE_QUALIFIER_DESCRIPTOR  dev_qua={};

//Class specific descriptor - HID mouse
const byte mouse_report[0x34]={
    0x05, 0x01, /* Usage Page (Generic Desktop)             */
    0x09, 0x02, /* Usage (Mouse)                            */
    0xA1, 0x01, /* Collection (Application)                 */
    0x09, 0x01, /*  Usage (Pointer)                         */
    0xA1, 0x00, /*  Collection (Physical)                   */
    0x05, 0x09, /*      Usage Page (Buttons)                */
    0x19, 0x01, /*      Usage Minimum (01)                  */
    0x29, 0x03, /*      Usage Maximum (03)                  */
    0x15, 0x00, /*      Logical Minimum (0)                 */
    0x25, 0x01, /*      Logical Maximum (1)                 */
    0x95, 0x03, /*      Report Count (3)                    */
    0x75, 0x01, /*      Report Size (1)                     */
    0x81, 0x02, /*      Input (Data, Variable, Absolute)    */
    0x95, 0x01, /*      Report Count (1)                    */
    0x75, 0x05, /*      Report Size (5)                     */
    0x81, 0x01, /*      Input (Constant)    ;5 bit padding  */
    0x05, 0x01, /*      Usage Page (Generic Desktop)        */
    0x09, 0x30, /*      Usage (X)                           */
    0x09, 0x31, /*      Usage (Y)                           */
    0x09, 0x38, /*      Logical Minimum (-127)              */
    0x15, 0x81, /*      Logical Maximum (127)               */
    0x25, 0x7F, /*      Report Size (8)                     */
    0x75, 0x08, /*      Report Count (3)                    */
    0x95, 0x03, /*      Input (Data, Variable, Relative)    */
    0x81, 0x06,
    0xC0, 0xC0};


void handle_data(int sockfd, USBIP_RET_SUBMIT *usb_req, int bl)
{
        // Sending random mouse data
        // Send data only for 5 seconds
         static int  count=0;
         char return_val[4]; 
         printf("data\n");
         if (count < 20)
         {
            return_val[0]= 0;
            return_val[1]=(char)((((10l*rand())/RAND_MAX))-5);
            return_val[2]=(char)((((10l*rand())/RAND_MAX))-5);
            return_val[3]= 0;
            send_usb_req(sockfd, usb_req, return_val, 4, 0);
            usleep(250000);
         } 
         count=count+1;
};

void handle_unknown_control(int sockfd, StandardDeviceRequest * control_req, USBIP_RET_SUBMIT *usb_req)
{
        if(control_req->bmRequestType == 0x81)
        { 
          if(control_req->bRequest == 0x6)  //# Get Descriptor
          {
            if(control_req->wValue1 == 0x22)  // send initial report
            {
              printf("send initial report\n");
              send_usb_req(sockfd,usb_req,(char *) mouse_report, 0x34, 0);
            }
          } 
        } 
        if(control_req->bmRequestType == 0x21)  // Host Request
        {
            if(control_req->bRequest == 0x0a)  // set idle
            { 
                printf("Idle\n");
                // Idle
                send_usb_req(sockfd,usb_req,"",0,0);
            }
        }    
};

int main()
{
   printf("hid mouse started....\n");
   usbip_run(&dev_dsc);
}



================================================
FILE: c/usbip.c
================================================
/* ########################################################################

   USBIP hardware emulation 

   ########################################################################

   Copyright (c) : 2016  Luis Claudio Gambôa Lopes

   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 2, 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, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

   For e-mail suggestions :  lcgamboa@yahoo.com
   ######################################################################## */

//system headers dependent


#include"usbip.h"


#ifdef _DEBUG
void print_recv(char* buff,int size,const char* desc)
{
    int i,j;
    
    printf("----------recv  %s (%i)-----------\n",desc,size);
            
    j=1;
    for(i=0; i< size; i++)
    {
        printf("0x%02X ",(unsigned char)buff[i]);
        if(j > 7)
        {
           printf("\n"); 
           j=0; 
        };
        j++;
    }
           
          
    printf("\n-------------------------\n");    
}
#endif

#ifndef LINUX
WORD wVersionRequested = 2;
WSADATA wsaData;
#endif

void handle_device_list(const USB_DEVICE_DESCRIPTOR *dev_dsc, OP_REP_DEVLIST *list)
{
  CONFIG_GEN * conf= (CONFIG_GEN *)configuration;   
  int i;
  list->header.version=htons(273);
  list->header.command=htons(5);
  list->header.status=0;
  list->header.nExportedDevice=htonl(1);
  memset(list->device.usbPath,0,256);
  strcpy(list->device.usbPath,"/sys/devices/pci0000:00/0000:00:01.2/usb1/1-1");
  memset(list->device.busID,0,32);
  strcpy(list->device.busID,"1-1");
  list->device.busnum=htonl(1);
  list->device.devnum=htonl(2);
  list->device.speed=htonl(2);
  list->device.idVendor=htons(dev_dsc->idVendor);
  list->device.idProduct=htons(dev_dsc->idProduct);
  list->device.bcdDevice=htons(dev_dsc->bcdDevice);
  list->device.bDeviceClass=dev_dsc->bDeviceClass;
  list->device.bDeviceSubClass=dev_dsc->bDeviceSubClass;
  list->device.bDeviceProtocol=dev_dsc->bDeviceProtocol;
  list->device.bConfigurationValue=conf->dev_conf.bConfigurationValue;
  list->device.bNumConfigurations=dev_dsc->bNumConfigurations; 
  list->device.bNumInterfaces=conf->dev_conf.bNumInterfaces;
  list->interfaces=malloc(list->device.bNumInterfaces*sizeof(OP_REP_DEVLIST_INTERFACE));
  for(i=0;i<list->device.bNumInterfaces;i++)
  {     
    list->interfaces[i].bInterfaceClass=interfaces[i]->bInterfaceClass;
    list->interfaces[i].bInterfaceSubClass=interfaces[i]->bInterfaceSubClass;
    list->interfaces[i].bInterfaceProtocol=interfaces[i]->bInterfaceProtocol;
    list->interfaces[i].padding=0;
  }
};

void handle_attach(const USB_DEVICE_DESCRIPTOR *dev_dsc, OP_REP_IMPORT *rep)
{
  CONFIG_GEN * conf= (CONFIG_GEN *)configuration; 
    
  rep->version=htons(273);
  rep->command=htons(3);
  rep->status=0;
  memset(rep->usbPath,0,256);
  strcpy(rep->usbPath,"/sys/devices/pci0000:00/0000:00:01.2/usb1/1-1");
  memset(rep->busID,0,32);
  strcpy(rep->busID,"1-1");
  rep->busnum=htonl(1);
  rep->devnum=htonl(2);
  rep->speed=htonl(2);
  rep->idVendor=dev_dsc->idVendor;
  rep->idProduct=dev_dsc->idProduct;
  rep->bcdDevice=dev_dsc->bcdDevice;
  rep->bDeviceClass=dev_dsc->bDeviceClass;
  rep->bDeviceSubClass=dev_dsc->bDeviceSubClass;
  rep->bDeviceProtocol=dev_dsc->bDeviceProtocol;
  rep->bNumConfigurations=dev_dsc->bNumConfigurations; 
  rep->bConfigurationValue=conf->dev_conf.bConfigurationValue;
  rep->bNumInterfaces=conf->dev_conf.bNumInterfaces;
}

void pack(int * data, int size)
{
   int i;
   size=size/4;
   for(i=0;i<size;i++)
   {
      data[i]=htonl(data[i]);
   }
   //swap setup
   i=data[size-1];
   data[size-1]=data[size-2];
   data[size-2]=i;
}  
             
void unpack(int * data, int size)
{
   int i;
   size=size/4;
   for(i=0;i<size;i++)
   {
      data[i]=ntohl(data[i]);
   }
   //swap setup
   i=data[size-1];
   data[size-1]=data[size-2];
   data[size-2]=i;
}  


void send_usb_req(int sockfd, USBIP_RET_SUBMIT * usb_req, char * data, unsigned int size, unsigned int status)
{
        usb_req->command=0x3;
        usb_req->status=status;
        usb_req->actual_length=size;
        usb_req->start_frame=0x0;
        usb_req->number_of_packets=0x0;
	
        usb_req->setup=0x0;
        usb_req->devid=0x0;
	usb_req->direction=0x0;
        usb_req->ep=0x0;    
    
        pack((int *)usb_req, sizeof(USBIP_RET_SUBMIT));
 
        if (send (sockfd, (char *)usb_req, sizeof(USBIP_RET_SUBMIT), 0) != sizeof(USBIP_RET_SUBMIT))
        {
          printf ("send error : %s \n", strerror (errno));
          exit(-1);
        };

        if(size > 0)
        {
           if (send (sockfd, data, size, 0) != size)
           {
             printf ("send error : %s \n", strerror (errno));
             exit(-1);
           };
        }
} 
            
int handle_get_descriptor(int sockfd, StandardDeviceRequest * control_req, USBIP_RET_SUBMIT *usb_req)
{
  int handled = 0;
  printf("handle_get_descriptor %u [%u]\n",control_req->wValue1,control_req->wValue0 );
  if(control_req->wValue1 == 0x1) // Device
  {
    printf("Device\n");  
    handled = 1;
    send_usb_req(sockfd,usb_req, (char *)&dev_dsc, sizeof(USB_DEVICE_DESCRIPTOR)/*control_req->wLength*/, 0);
   } 
   if(control_req->wValue1 == 0x2) // configuration
   {
     printf("Configuration\n");  
     handled = 1;
     send_usb_req(sockfd,usb_req, (char *) configuration, control_req->wLength ,0);
   }
   if(control_req->wValue1 == 0x3) // string
   {
     char str[255];
     int i;
     memset(str,0,255); 
     for(i=0;i< (*strings[control_req->wValue0]/2) -1;i++)
        str[i]=strings[control_req->wValue0][i*2+2];
     printf("String (%s)\n",str);  
     handled = 1;
     send_usb_req(sockfd,usb_req, (char *) strings[control_req->wValue0] ,*strings[control_req->wValue0]  ,0);
   }
   if(control_req->wValue1 == 0x6) // qualifier
   {
     printf("Qualifier\n");  
     handled = 1;
     send_usb_req(sockfd,usb_req, (char *) &dev_qua , control_req->wLength ,0);
   }
   if(control_req->wValue1 == 0xA) // config status ???
   {
     printf("Unknow\n");  
     handled = 1;
     send_usb_req(sockfd,usb_req,"",0,1);        
   }  
   return handled;
}

int handle_set_configuration(int sockfd, StandardDeviceRequest * control_req, USBIP_RET_SUBMIT *usb_req)
{
  int handled = 0;
  printf("handle_set_configuration %u[%u]\n",control_req->wValue1,control_req->wValue0 );
  handled = 1;
  send_usb_req(sockfd, usb_req, "", 0, 0);        
  return handled;
}

//http://www.usbmadesimple.co.uk/ums_4.htm

void handle_usb_control(int sockfd, USBIP_RET_SUBMIT *usb_req)
{
        int handled = 0;
        StandardDeviceRequest control_req;
#ifdef LINUX
        printf("%016llX\n",usb_req->setup); 
#else
        printf("%016I64X\n",usb_req->setup); 
#endif
        control_req.bmRequestType=  (usb_req->setup & 0xFF00000000000000)>>56;  
        control_req.bRequest=       (usb_req->setup & 0x00FF000000000000)>>48;  
        control_req.wValue0=        (usb_req->setup & 0x0000FF0000000000)>>40;  
        control_req.wValue1=        (usb_req->setup & 0x000000FF00000000)>>32;
        control_req.wIndex0=        (usb_req->setup & 0x00000000FF000000)>>24; 
        control_req.wIndex1=        (usb_req->setup & 0x0000000000FF0000)>>16;
        control_req.wLength=   ntohs(usb_req->setup & 0x000000000000FFFF);  
        printf("  UC Request Type %u\n",control_req.bmRequestType);
        printf("  UC Request %u\n",control_req.bRequest);
        printf("  UC Value  %u[%u]\n",control_req.wValue1,control_req.wValue0);
        printf("  UCIndex  %u-%u\n",control_req.wIndex1,control_req.wIndex0);
        printf("  UC Length %u\n",control_req.wLength);
        
        if(control_req.bmRequestType == 0x80) // Host Request
        {
          if(control_req.bRequest == 0x06) // Get Descriptor
          {
            handled = handle_get_descriptor(sockfd, &control_req, usb_req);
          }
          if(control_req.bRequest == 0x00) // Get STATUS
          {
            char data[2];
            data[0]=0x01;
            data[1]=0x00;
            send_usb_req(sockfd,usb_req, data, 2 , 0);        
            handled = 1;
            printf("GET_STATUS\n");   
          }
        }
        if(control_req.bmRequestType == 0x00) // 
        {
            if(control_req.bRequest == 0x09) // Set Configuration
            {
                handled = handle_set_configuration(sockfd, &control_req, usb_req);
            }
        }  
        if(control_req.bmRequestType == 0x01)
        { 
          if(control_req.bRequest == 0x0B) //SET_INTERFACE  
          {
            printf("SET_INTERFACE\n");   
            send_usb_req(sockfd,usb_req,"",0,1);
            handled=1; 
          } 
        }
        if(! handled)
            handle_unknown_control(sockfd, &control_req, usb_req);
}

           
void handle_usb_request(int sockfd, USBIP_RET_SUBMIT *ret, int bl)
{
   if(ret->ep == 0)
   {
      printf("#control requests\n");
      handle_usb_control(sockfd, ret);
   }
   else
   {
      printf("#data requests\n");
      handle_data(sockfd, ret, bl);
   }
};

void
usbip_run (const USB_DEVICE_DESCRIPTOR *dev_dsc)                                /* simple TCP server */
{
  struct sockaddr_in serv, cli;
  int listenfd, sockfd, nb;
#ifdef LINUX
  unsigned int clilen;
#else
  int clilen;
#endif
  unsigned char attached;



#ifndef LINUX
  WSAStartup (wVersionRequested, &wsaData);
  if (wsaData.wVersion != wVersionRequested)
    {
      fprintf (stderr, "\n Wrong version\n");
      exit (-1);
    }

#endif

  if ((listenfd = socket (PF_INET, SOCK_STREAM, 0)) < 0)
    {
      printf ("socket error : %s \n", strerror (errno));
      exit (1);
    };

  int reuse = 1;
  if (setsockopt(listenfd, SOL_SOCKET, SO_REUSEADDR, (const char*)&reuse, sizeof(reuse)) < 0)
      perror("setsockopt(SO_REUSEADDR) failed");

  memset (&serv, 0, sizeof (serv));
  serv.sin_family = AF_INET;
  serv.sin_addr.s_addr = htonl (INADDR_ANY);
  serv.sin_port = htons (TCP_SERV_PORT);

  if (bind (listenfd, (sockaddr *) & serv, sizeof (serv)) < 0)
    {
      printf ("bind error : %s \n", strerror (errno));
      exit (1);
    };

  if (listen (listenfd, SOMAXCONN) < 0)
    {
      printf ("listen error : %s \n", strerror (errno));
      exit (1);
    };

  for (;;)
    {

      clilen = sizeof (cli);
      if (
          (sockfd =
           accept (listenfd, (sockaddr *) & cli,  & clilen)) < 0)
        {
          printf ("accept error : %s \n", strerror (errno));
          exit (1);
        };
        printf("Connection address:%s\n",inet_ntoa(cli.sin_addr));
        attached=0;
  
        while(1)
        {
          if(! attached)
          {
             OP_REQ_DEVLIST req;
             if ((nb = recv (sockfd, (char *)&req, sizeof(OP_REQ_DEVLIST), 0)) != sizeof(OP_REQ_DEVLIST))
             {
               //printf ("receive error : %s \n", strerror (errno));
               break;
             };
#ifdef _DEBUG
             print_recv((char *)&req, sizeof(OP_REQ_DEVLIST),"OP_REQ_DEVLIST");
#endif
             req.command=ntohs(req.command);
             printf("Header Packet\n");  
             printf("command: 0x%02X\n",req.command);
             if(req.command == 0x8005)
             {
               OP_REP_DEVLIST list;
               printf("list of devices\n");

               handle_device_list(dev_dsc,&list);

               if (send (sockfd, (char *)&list.header, sizeof(OP_REP_DEVLIST_HEADER), 0) != sizeof(OP_REP_DEVLIST_HEADER))
               {
                   printf ("send error : %s \n", strerror (errno));
                   break;
               };
               if (send (sockfd, (char *)&list.device, sizeof(OP_REP_DEVLIST_DEVICE), 0) != sizeof(OP_REP_DEVLIST_DEVICE))
               {
                   printf ("send error : %s \n", strerror (errno));
                   break;
               };
               if (send (sockfd, (char *)list.interfaces, sizeof(OP_REP_DEVLIST_INTERFACE)*list.device.bNumInterfaces, 0) != sizeof(OP_REP_DEVLIST_INTERFACE)*list.device.bNumInterfaces)
               {
                   printf ("send error : %s \n", strerror (errno));
                   break;
               };
               free(list.interfaces);
             }
             else if(req.command == 0x8003) 
             {
               char busid[32];
               OP_REP_IMPORT rep;
               printf("attach device\n");
               if ((nb = recv (sockfd, busid, 32, 0)) != 32)
               {
                 printf ("receive error : %s \n", strerror (errno));
                 break;
               };
#ifdef _DEBUG
             print_recv(busid, 32,"Busid");
#endif
               handle_attach(dev_dsc,&rep);
               if (send (sockfd, (char *)&rep, sizeof(OP_REP_IMPORT), 0) != sizeof(OP_REP_IMPORT))
               {
                   printf ("send error : %s \n", strerror (errno));
                   break;
               };
               attached = 1;
             }
          }
          else
          {
             printf("------------------------------------------------\n"); 
             printf("handles requests\n");
             USBIP_CMD_SUBMIT cmd;
             USBIP_RET_SUBMIT usb_req;
             if ((nb = recv (sockfd, (char *)&cmd, sizeof(USBIP_CMD_SUBMIT), 0)) != sizeof(USBIP_CMD_SUBMIT))
             {
               printf ("receive error : %s \n", strerror (errno));
               break;
             };
#ifdef _DEBUG
             print_recv((char *)&cmd, sizeof(USBIP_CMD_SUBMIT),"USBIP_CMD_SUBMIT");
#endif
             unpack((int *)&cmd,sizeof(USBIP_CMD_SUBMIT));               
             printf("usbip cmd %u\n",cmd.command);
             printf("usbip seqnum %u\n",cmd.seqnum);
             printf("usbip devid %u\n",cmd.devid);
             printf("usbip direction %u\n",cmd.direction);
             printf("usbip ep %u\n",cmd.ep);
             printf("usbip flags %u\n",cmd.transfer_flags);
             printf("usbip number of packets %u\n",cmd.number_of_packets);
             printf("usbip interval %u\n",cmd.interval);
#ifdef LINUX
             printf("usbip setup %llu\n",cmd.setup);
#else
             printf("usbip setup %I64u\n",cmd.setup);
#endif
             printf("usbip buffer lenght  %u\n",cmd.transfer_buffer_length);
             usb_req.command=0;
             usb_req.seqnum=cmd.seqnum;
             usb_req.devid=cmd.devid;
             usb_req.direction=cmd.direction;
             usb_req.ep=cmd.ep;
             usb_req.status=0;
             usb_req.actual_length=0;
             usb_req.start_frame=0;
             usb_req.number_of_packets=0;
             usb_req.error_count=0;
             usb_req.setup=cmd.setup;
             
             if(cmd.command == 1)
               handle_usb_request(sockfd, &usb_req, cmd.transfer_buffer_length);
             

             if(cmd.command == 2) //unlink urb
             {
                printf("####################### Unlink URB %u  (not working!!!)\n",cmd.transfer_flags);
             //FIXME
               /*              
                USBIP_RET_UNLINK ret;  
                printf("####################### Unlink URB %u\n",cmd.transfer_flags);
                ret.command=htonl(0x04);
                ret.devid=htonl(cmd.devid);
                ret.direction=htonl(cmd.direction);
                ret.ep=htonl(cmd.ep);
                ret.seqnum=htonl(cmd.seqnum);
                ret.status=htonl(1);
 
                if (send (sockfd, (char *)&ret, sizeof(USBIP_RET_UNLINK), 0) != sizeof(USBIP_RET_UNLINK))
                {
                  printf ("send error : %s \n", strerror (errno));
                  exit(-1);
                };
               */ 
             }

             if(cmd.command > 2)
             {
                printf("Unknown USBIP cmd!\n");  
                close (sockfd);
#ifndef LINUX
                WSACleanup ();
#endif
                return;  
             };
 
          } 
       }
       close (sockfd);
    };
#ifndef LINUX
  WSACleanup ();
#endif
};


================================================
FILE: c/usbip.h
================================================
/* ########################################################################

   USBIP hardware emulation 

   ########################################################################

   Copyright (c) : 2016  Luis Claudio Gambôa Lopes

   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 2, 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, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

   For e-mail suggestions :  lcgamboa@yahoo.com
   ######################################################################## */

#ifdef LINUX
#include<sys/types.h>
#include<sys/socket.h>
#include<sys/un.h>
#include<netinet/in.h>
#include<arpa/inet.h>
#define        min(a,b)        ((a) < (b) ? (a) : (b))
#else
#include<winsock.h>
#endif
//system headers independent
#include<errno.h>
#include<stdarg.h>
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<unistd.h>
//defines
#define        TCP_SERV_PORT        3240
typedef struct sockaddr sockaddr;


//USB definitions

#define byte unsigned char
#define word unsigned short

// USB Descriptors

#define USB_DESCRIPTOR_DEVICE           0x01    // Device Descriptor.
#define USB_DESCRIPTOR_CONFIGURATION    0x02    // Configuration Descriptor.
#define USB_DESCRIPTOR_STRING           0x03    // String Descriptor.
#define USB_DESCRIPTOR_INTERFACE        0x04    // Interface Descriptor.
#define USB_DESCRIPTOR_ENDPOINT         0x05    // Endpoint Descriptor.
#define USB_DESCRIPTOR_DEVICE_QUALIFIER 0x06    // Device Qualifier.

typedef struct __attribute__ ((__packed__)) _USB_DEVICE_DESCRIPTOR
{
    byte bLength;               // Length of this descriptor.
    byte bDescriptorType;       // DEVICE descriptor type (USB_DESCRIPTOR_DEVICE).
    word bcdUSB;                // USB Spec Release Number (BCD).
    byte bDeviceClass;          // Class code (assigned by the USB-IF). 0xFF-Vendor specific.
    byte bDeviceSubClass;       // Subclass code (assigned by the USB-IF).
    byte bDeviceProtocol;       // Protocol code (assigned by the USB-IF). 0xFF-Vendor specific.
    byte bMaxPacketSize0;       // Maximum packet size for endpoint 0.
    word idVendor;              // Vendor ID (assigned by the USB-IF).
    word idProduct;             // Product ID (assigned by the manufacturer).
    word bcdDevice;             // Device release number (BCD).
    byte iManufacturer;         // Index of String Descriptor describing the manufacturer.
    byte iProduct;              // Index of String Descriptor describing the product.
    byte iSerialNumber;         // Index of String Descriptor with the device's serial number.
    byte bNumConfigurations;    // Number of possible configurations.
} USB_DEVICE_DESCRIPTOR;


typedef struct __attribute__ ((__packed__)) _USB_CONFIGURATION_DESCRIPTOR
{
    byte bLength;               // Length of this descriptor.
    byte bDescriptorType;       // CONFIGURATION descriptor type (USB_DESCRIPTOR_CONFIGURATION).
    word wTotalLength;          // Total length of all descriptors for this configuration.
    byte bNumInterfaces;        // Number of interfaces in this configuration.
    byte bConfigurationValue;   // Value of this configuration (1 based).
    byte iConfiguration;        // Index of String Descriptor describing the configuration.
    byte bmAttributes;          // Configuration characteristics.
    byte bMaxPower;             // Maximum power consumed by this configuration.
} USB_CONFIGURATION_DESCRIPTOR;


typedef struct __attribute__ ((__packed__)) _USB_INTERFACE_DESCRIPTOR
{
    byte bLength;               // Length of this descriptor.
    byte bDescriptorType;       // INTERFACE descriptor type (USB_DESCRIPTOR_INTERFACE).
    byte bInterfaceNumber;      // Number of this interface (0 based).
    byte bAlternateSetting;     // Value of this alternate interface setting.
    byte bNumEndpoints;         // Number of endpoints in this interface.
    byte bInterfaceClass;       // Class code (assigned by the USB-IF).  0xFF-Vendor specific.
    byte bInterfaceSubClass;    // Subclass code (assigned by the USB-IF).
    byte bInterfaceProtocol;    // Protocol code (assigned by the USB-IF).  0xFF-Vendor specific.
    byte iInterface;            // Index of String Descriptor describing the interface.
} USB_INTERFACE_DESCRIPTOR;


typedef struct __attribute__ ((__packed__)) _USB_ENDPOINT_DESCRIPTOR
{
    byte bLength;               // Length of this descriptor.
    byte bDescriptorType;       // ENDPOINT descriptor type (USB_DESCRIPTOR_ENDPOINT).
    byte bEndpointAddress;      // Endpoint address. Bit 7 indicates direction (0=OUT, 1=IN).
    byte bmAttributes;          // Endpoint transfer type.
    word wMaxPacketSize;        // Maximum packet size.
    byte bInterval;             // Polling interval in frames.
} USB_ENDPOINT_DESCRIPTOR;

typedef struct __attribute__ ((__packed__)) _USB_DEVICE_QUALIFIER_DESCRIPTOR
{
    byte bLength;               // Size of this descriptor
    byte bType;                 // Type, always USB_DESCRIPTOR_DEVICE_QUALIFIER
    word bcdUSB;                // USB spec version, in BCD
    byte bDeviceClass;          // Device class code
    byte bDeviceSubClass;       // Device sub-class code
    byte bDeviceProtocol;       // Device protocol
    byte bMaxPacketSize0;       // EP0, max packet size
    byte bNumConfigurations;    // Number of "other-speed" configurations
    byte bReserved;             // Always zero (0)
} USB_DEVICE_QUALIFIER_DESCRIPTOR;

//Generic Configuration
typedef struct __attribute__ ((__packed__)) _CONFIG_GEN
{
 USB_CONFIGURATION_DESCRIPTOR dev_conf;
 USB_INTERFACE_DESCRIPTOR dev_int;
} CONFIG_GEN;

//HID
typedef struct __attribute__ ((__packed__)) _USB_HID_DESCRIPTOR
{
    byte bLength;
    byte bDescriptorType;
    word bcdHID;
    byte bCountryCode;
    byte bNumDescriptors;
    byte bRPDescriptorType;
    word wRPDescriptorLength;
} USB_HID_DESCRIPTOR;

//Configuration
typedef struct __attribute__ ((__packed__)) _CONFIG_HID
{
 USB_CONFIGURATION_DESCRIPTOR dev_conf;
 USB_INTERFACE_DESCRIPTOR dev_int;
 USB_HID_DESCRIPTOR dev_hid;
 USB_ENDPOINT_DESCRIPTOR dev_ep;
} CONFIG_HID;

//CDC
/* Functional Descriptor Structure - See CDC Specification 1.1 for details */

/* Header Functional Descriptor */
typedef struct __attribute__ ((__packed__)) _USB_CDC_HEADER_FN_DSC
{
    byte bFNLength;
    byte bDscType;
    byte bDscSubType;
    word bcdCDC;
} USB_CDC_HEADER_FN_DSC;

/* Abstract Control Management Functional Descriptor */
typedef struct __attribute__ ((__packed__)) _USB_CDC_ACM_FN_DSC
{
    byte bFNLength;
    byte bDscType;
    byte bDscSubType;
    byte bmCapabilities;
} USB_CDC_ACM_FN_DSC;

/* Union Functional Descriptor */
typedef struct __attribute__ ((__packed__)) _USB_CDC_UNION_FN_DSC
{
    byte bFNLength;
    byte bDscType;
    byte bDscSubType;
    byte bMasterIntf;
    byte bSaveIntf0;
} USB_CDC_UNION_FN_DSC;

/* Call Management Functional Descriptor */
typedef struct __attribute__ ((__packed__)) _USB_CDC_CALL_MGT_FN_DSC
{
    byte bFNLength;
    byte bDscType;
    byte bDscSubType;
    byte bmCapabilities;
    byte bDataInterface;
} USB_CDC_CALL_MGT_FN_DSC;

//Configuration
typedef struct __attribute__ ((__packed__)) _CONFIG_CDC
{
 USB_CONFIGURATION_DESCRIPTOR dev_conf0;
 USB_INTERFACE_DESCRIPTOR dev_int0;
 USB_CDC_HEADER_FN_DSC cdc_header;
 USB_CDC_CALL_MGT_FN_DSC cdc_call_mgt;
 USB_CDC_ACM_FN_DSC cdc_acm;
 USB_CDC_UNION_FN_DSC cdc_union;
 USB_ENDPOINT_DESCRIPTOR dev_ep0;
 USB_INTERFACE_DESCRIPTOR dev_int1;
 USB_ENDPOINT_DESCRIPTOR dev_ep1;
 USB_ENDPOINT_DESCRIPTOR dev_ep2;
} CONFIG_CDC;

//=================================================================================
//USBIP data struct 

typedef struct  __attribute__ ((__packed__)) _OP_REQ_DEVLIST
{
 word version;
 word command;
 int status;
} OP_REQ_DEVLIST;


typedef struct  __attribute__ ((__packed__)) _OP_REP_DEVLIST_HEADER
{
word version;
word command;
int status;
int nExportedDevice;
}OP_REP_DEVLIST_HEADER;

//================= for each device
typedef struct  __attribute__ ((__packed__)) _OP_REP_DEVLIST_DEVICE
{
char usbPath[256];
char busID[32];
int busnum;
int devnum;
int speed;
word idVendor;
word idProduct;
word bcdDevice;
byte bDeviceClass;
byte bDeviceSubClass;
byte bDeviceProtocol;
byte bConfigurationValue;
byte bNumConfigurations; 
byte bNumInterfaces;
}OP_REP_DEVLIST_DEVICE;

//================== for each interface
typedef struct  __attribute__ ((__packed__)) _OP_REP_DEVLIST_INTERFACE
{
byte bInterfaceClass;
byte bInterfaceSubClass;
byte bInterfaceProtocol;
byte padding;
}OP_REP_DEVLIST_INTERFACE;

typedef struct  __attribute__ ((__packed__)) _OP_REP_DEVLIST
{
OP_REP_DEVLIST_HEADER      header;
OP_REP_DEVLIST_DEVICE      device; //only one!
OP_REP_DEVLIST_INTERFACE   *interfaces;
}OP_REP_DEVLIST;

typedef struct  __attribute__ ((__packed__)) _OP_REQ_IMPORT
{
word version;
word command;
int status;
char busID[32];
}OP_REQ_IMPORT;


typedef struct  __attribute__ ((__packed__)) _OP_REP_IMPORT
{
word version;
word command;
int  status;
//------------- if not ok, finish here
char usbPath[256];
char busID[32];
int busnum;
int devnum;
int speed;
word idVendor;
word idProduct;
word bcdDevice;
byte bDeviceClass;
byte bDeviceSubClass;
byte bDeviceProtocol;
byte bConfigurationValue;
byte bNumConfigurations;
byte bNumInterfaces;
}OP_REP_IMPORT;



typedef struct  __attribute__ ((__packed__)) _USBIP_CMD_SUBMIT
{
int command;
int seqnum;
int devid;
int direction;
int ep;
int transfer_flags;
int transfer_buffer_length;
int start_frame;
int number_of_packets;
int interval;
long long setup;
}USBIP_CMD_SUBMIT;

/*
+  Allowed transfer_flags  | value      | control | interrupt | bulk     | isochronous
+ -------------------------+------------+---------+-----------+----------+-------------
+  URB_SHORT_NOT_OK        | 0x00000001 | only in | only in   | only in  | no
+  URB_ISO_ASAP            | 0x00000002 | no      | no        | no       | yes
+  URB_NO_TRANSFER_DMA_MAP | 0x00000004 | yes     | yes       | yes      | yes
+  URB_NO_FSBR             | 0x00000020 | yes     | no        | no       | no
+  URB_ZERO_PACKET         | 0x00000040 | no      | no        | only out | no
+  URB_NO_INTERRUPT        | 0x00000080 | yes     | yes       | yes      | yes
+  URB_FREE_BUFFER         | 0x00000100 | yes     | yes       | yes      | yes
+  URB_DIR_MASK            | 0x00000200 | yes     | yes       | yes      | yes
*/

typedef struct  __attribute__ ((__packed__)) _USBIP_RET_SUBMIT
{
int command;
int seqnum;
int devid;
int direction;
int ep;
int status;
int actual_length;
int start_frame;
int number_of_packets;
int error_count; 
long long setup;
}USBIP_RET_SUBMIT;


typedef struct  __attribute__ ((__packed__)) _USBIP_CMD_UNLINK
{
int command;
int seqnum;
int devid;
int direction;
int ep;
int seqnum_urb;
}USBIP_CMD_UNLINK;


typedef struct  __attribute__ ((__packed__)) _USBIP_RET_UNLINK
{
int command;
int seqnum;
int devid;
int direction;
int ep;
int status;
}USBIP_RET_UNLINK;



typedef struct  __attribute__ ((__packed__)) _StandardDeviceRequest
{
  byte bmRequestType;
  byte bRequest;
  byte wValue0;
  byte wValue1;
  byte wIndex0;
  byte wIndex1;
  word wLength;
}StandardDeviceRequest;


void send_usb_req(int sockfd, USBIP_RET_SUBMIT * usb_req, char * data, unsigned int size, unsigned int status);
void usbip_run (const USB_DEVICE_DESCRIPTOR *dev_dsc);

//implemented by user
extern const USB_DEVICE_DESCRIPTOR dev_dsc;
extern const USB_DEVICE_QUALIFIER_DESCRIPTOR  dev_qua;
extern const char * configuration;
extern const USB_INTERFACE_DESCRIPTOR *interfaces[];
extern const unsigned char *strings[];

void handle_data(int sockfd, USBIP_RET_SUBMIT *usb_req, int bl);
void handle_unknown_control(int sockfd, StandardDeviceRequest * control_req, USBIP_RET_SUBMIT *usb_req);


================================================
FILE: doc/usbip_protocol.txt
================================================
PRELIMINARY DRAFT, MAY CONTAIN MISTAKES!
28 Jun 2011

The USB/IP protocol follows a server/client architecture. The server exports the
USB devices and the clients imports them. The device driver for the exported
USB device runs on the client machine.

The client may ask for the list of the exported USB devices. To get the list the
client opens a TCP/IP connection towards the server, and sends an OP_REQ_DEVLIST
packet on top of the TCP/IP connection (so the actual OP_REQ_DEVLIST may be sent
in one or more pieces at the low level transport layer). The server sends back
the OP_REP_DEVLIST packet which lists the exported USB devices. Finally the
TCP/IP connection is closed.

 virtual host controller                                 usb host
      "client"                                           "server"
  (imports USB devices)                             (exports USB devices)
          |                                                 |
          |                  OP_REQ_DEVLIST                 |
          | ----------------------------------------------> |
          |                                                 |
          |                  OP_REP_DEVLIST                 |
          | <---------------------------------------------- |
          |                                                 |

Once the client knows the list of exported USB devices it may decide to use one
of them. First the client opens a TCP/IP connection towards the server and
sends an OP_REQ_IMPORT packet. The server replies with OP_REP_IMPORT. If the
import was successful the TCP/IP connection remains open and will be used
to trasfer the URB traffic between the client and the server. The client may
send two types of packets: the USBIP_CMD_SUBMIT to submit an URB, and
USBIP_CMD_UNLINK to unlink a previously submitted URB. The answers of the
server may be USBIP_RET_SUBMIT and USBIP_RET_UNLINK respectively.

 virtual host controller                                 usb host
      "client"                                           "server"
  (imports USB devices)                             (exports USB devices)
          |                                                 |
          |                  OP_REQ_IMPORT                  |
          | ----------------------------------------------> |
          |                                                 |
          |                  OP_REP_IMPORT                  |
          | <---------------------------------------------- |
          |                                                 |
          |                                                 |
          |            USBIP_CMD_SUBMIT(seqnum = n)         |
          | ----------------------------------------------> |
          |                                                 |
          |            USBIP_RET_SUBMIT(seqnum = n)         |
          | <---------------------------------------------- |
          |                        .                        |
          |                        :                        |
          |                                                 |
          |            USBIP_CMD_SUBMIT(seqnum = m)         |
          | ----------------------------------------------> |
          |                                                 |
          |            USBIP_CMD_SUBMIT(seqnum = m+1)       |
          | ----------------------------------------------> |
          |                                                 |
          |            USBIP_CMD_SUBMIT(seqnum = m+2)       |
          | ----------------------------------------------> |
          |                                                 |
          |            USBIP_RET_SUBMIT(seqnum = m)         |
          | <---------------------------------------------- |
          |                                                 |
          |            USBIP_CMD_SUBMIT(seqnum = m+3)       |
          | ----------------------------------------------> |
          |                                                 |
          |            USBIP_RET_SUBMIT(seqnum = m+1)       |
          | <---------------------------------------------- |
          |                                                 |
          |            USBIP_CMD_SUBMIT(seqnum = m+4)       |
          | ----------------------------------------------> |
          |                                                 |
          |            USBIP_RET_SUBMIT(seqnum = m+2)       |
          | <---------------------------------------------- |
          |                        .                        |
          |                        :                        |
          |                                                 |
          |               USBIP_CMD_UNLINK                  |
          | ----------------------------------------------> |
          |                                                 |
          |               USBIP_RET_UNLINK                  |
          | <---------------------------------------------- |
          |                                                 |

The fields are in network (big endian) byte order meaning that the most significant
byte (MSB) is stored at the lowest address.


OP_REQ_DEVLIST: Retrieve the list of exported USB devices.

 Offset    | Length | Value      | Description
-----------+--------+------------+---------------------------------------------------
 0         | 2      | 0x0100     | Binary-coded decimal USBIP version number: v1.0.0
-----------+--------+------------+---------------------------------------------------
 2         | 2      | 0x8005     | Command code: Retrieve the list of exported USB
           |        |            |   devices.
-----------+--------+------------+---------------------------------------------------
 4         | 4      | 0x00000000 | Status: unused, shall be set to 0

OP_REP_DEVLIST: Reply with the list of exported USB devices.

 Offset    | Length | Value      | Description
-----------+--------+------------+---------------------------------------------------
 0         | 2      | 0x0100     | Binary-coded decimal USBIP version number: v1.0.0.
-----------+--------+------------+---------------------------------------------------
 2         | 2      | 0x0005     | Reply code: The list of exported USB devices.
-----------+--------+------------+---------------------------------------------------
 4         | 4      | 0x00000000 | Status: 0 for OK
-----------+--------+------------+---------------------------------------------------
 8         | 4      | n          | Number of exported devices: 0 means no exported
           |        |            |   devices.
-----------+--------+------------+---------------------------------------------------
 0x0C      |        |            | From now on the exported n devices are described,
           |        |            |   if any. If no devices are exported the message
           |        |            |   ends with the previous "number of exported
           |        |            |   devices" field.
-----------+--------+------------+---------------------------------------------------
           | 256    |            | path: Path of the device on the host exporting the
           |        |            |   USB device, string closed with zero byte, e.g.
           |        |            |   "/sys/devices/pci0000:00/0000:00:1d.1/usb3/3-2"
           |        |            |   The unused bytes shall be filled with zero
           |        |            |   bytes.
-----------+--------+------------+---------------------------------------------------
 0x10C     | 32     |            | busid: Bus ID of the exported device, string
           |        |            |   closed with zero byte, e.g. "3-2". The unused
           |        |            |   bytes shall be filled with zero bytes.
-----------+--------+------------+---------------------------------------------------
 0x12C     | 4      |            | busnum
-----------+--------+------------+---------------------------------------------------
 0x130     | 4      |            | devnum
-----------+--------+------------+---------------------------------------------------
 0x134     | 4      |            | speed
-----------+--------+------------+---------------------------------------------------
 0x138     | 2      |            | idVendor
-----------+--------+------------+---------------------------------------------------
 0x13A     | 2      |            | idProduct
-----------+--------+------------+---------------------------------------------------
 0x13C     | 2      |            | bcdDevice
-----------+--------+------------+---------------------------------------------------
 0x13E     | 1      |            | bDeviceClass
-----------+--------+------------+---------------------------------------------------
 0x13F     | 1      |            | bDeviceSubClass
-----------+--------+------------+---------------------------------------------------
 0x140     | 1      |            | bDeviceProtocol
-----------+--------+------------+---------------------------------------------------
 0x141     | 1      |            | bConfigurationValue
-----------+--------+------------+---------------------------------------------------
 0x142     | 1      |            | bNumConfigurations
-----------+--------+------------+---------------------------------------------------
 0x143     | 1      |            | bNumInterfaces
-----------+--------+------------+---------------------------------------------------
 0x144     |        | m_0        | From now on each interface is described, all
           |        |            |   together bNumInterfaces times, with the
           |        |            |   the following 4 fields:
-----------+--------+------------+---------------------------------------------------
           | 1      |            | bInterfaceClass
-----------+--------+------------+---------------------------------------------------
 0x145     | 1      |            | bInterfaceSubClass
-----------+--------+------------+---------------------------------------------------
 0x146     | 1      |            | bInterfaceProtocol
-----------+--------+------------+---------------------------------------------------
 0x147     | 1      |            | padding byte for alignment, shall be set to zero
-----------+--------+------------+---------------------------------------------------
 0xC +     |        |            | The second exported USB device starts at i=1
 i*0x138 + |        |            | with the busid field.
 m_(i-1)*4 |        |            |

OP_REQ_IMPORT: Request to import (attach) a remote USB device.

 Offset    | Length | Value      | Description
-----------+--------+------------+---------------------------------------------------
 0         | 2      | 0x0100     | Binary-coded decimal USBIP version number: v1.0.0
-----------+--------+------------+---------------------------------------------------
 2         | 2      | 0x8003     | Command code: import a remote USB device.
-----------+--------+------------+---------------------------------------------------
 4         | 4      | 0x00000000 | Status: unused, shall be set to 0
-----------+--------+------------+---------------------------------------------------
 8         | 32     |            | busid: the busid of the exported device on the
           |        |            |   remote host. The possible values are taken
           |        |            |   from the message field OP_REP_DEVLIST.busid.
           |        |            |   A string closed with zero, the unused bytes
           |        |            |   shall be filled with zeros.
-----------+--------+------------+---------------------------------------------------

OP_REP_IMPORT: Reply to import (attach) a remote USB device.

 Offset    | Length | Value      | Description
-----------+--------+------------+---------------------------------------------------
 0         | 2      | 0x0100     | Binary-coded decimal USBIP version number: v1.0.0
-----------+--------+------------+---------------------------------------------------
 2         | 2      | 0x0003     | Reply code: Reply to import.
-----------+--------+------------+---------------------------------------------------
 4         | 4      | 0x00000000 | Status: 0 for OK
           |        |            |         1 for error
-----------+--------+------------+---------------------------------------------------
 8         |        |            | From now on comes the details of the imported
           |        |            |   device, if the previous status field was OK (0),
           |        |            |   otherwise the reply ends with the status field.
-----------+--------+------------+---------------------------------------------------
           | 256    |            | path: Path of the device on the host exporting the
           |        |            |   USB device, string closed with zero byte, e.g.
           |        |            |   "/sys/devices/pci0000:00/0000:00:1d.1/usb3/3-2"
           |        |            |   The unused bytes shall be filled with zero
           |        |            |   bytes.
-----------+--------+------------+---------------------------------------------------
 0x108     | 32     |            | busid: Bus ID of the exported device, string
           |        |            |   closed with zero byte, e.g. "3-2". The unused
           |        |            |   bytes shall be filled with zero bytes.
-----------+--------+------------+---------------------------------------------------
 0x128     | 4      |            | busnum
-----------+--------+------------+---------------------------------------------------
 0x12C     | 4      |            | devnum
-----------+--------+------------+---------------------------------------------------
 0x130     | 4      |            | speed
-----------+--------+------------+---------------------------------------------------
 0x134     | 2      |            | idVendor
-----------+--------+------------+---------------------------------------------------
 0x136     | 2      |            | idProduct
-----------+--------+------------+---------------------------------------------------
 0x138     | 2      |            | bcdDevice
-----------+--------+------------+---------------------------------------------------
 0x139     | 1      |            | bDeviceClass
-----------+--------+------------+---------------------------------------------------
 0x13A     | 1      |            | bDeviceSubClass
-----------+--------+------------+---------------------------------------------------
 0x13B     | 1      |            | bDeviceProtocol
-----------+--------+------------+---------------------------------------------------
 0x13C     | 1      |            | bConfigurationValue
-----------+--------+------------+---------------------------------------------------
 0x13D     | 1      |            | bNumConfigurations
-----------+--------+------------+---------------------------------------------------
 0x13E     | 1      |            | bNumInterfaces

USBIP_CMD_SUBMIT: Submit an URB

 Offset    | Length | Value      | Description
-----------+--------+------------+---------------------------------------------------
 0         | 4      | 0x00000001 | command: Submit an URB
-----------+--------+------------+---------------------------------------------------
 4         | 4      |            | seqnum: the sequence number of the URB to submit
-----------+--------+------------+---------------------------------------------------
 8         | 4      |            | devid
-----------+--------+------------+---------------------------------------------------
 0xC       | 4      |            | direction: 0: USBIP_DIR_OUT
           |        |            |            1: USBIP_DIR_IN
-----------+--------+------------+---------------------------------------------------
 0x10      | 4      |            | ep: endpoint number, possible values are: 0...15
-----------+--------+------------+---------------------------------------------------
 0x14      | 4      |            | transfer_flags: possible values depend on the
           |        |            |   URB transfer type, see below
-----------+--------+------------+---------------------------------------------------
 0x18      | 4      |            | transfer_buffer_length
-----------+--------+------------+---------------------------------------------------
 0x1C      | 4      |            | start_frame: specify the selected frame to
           |        |            |   transmit an ISO frame, ignored if URB_ISO_ASAP
           |        |            |   is specified at transfer_flags
-----------+--------+------------+---------------------------------------------------
 0x20      | 4      |            | number_of_packets: number of ISO packets
-----------+--------+------------+---------------------------------------------------
 0x24      | 4      |            | interval: maximum time for the request on the
           |        |            |   server-side host controller
-----------+--------+------------+---------------------------------------------------
 0x28      | 8      |            | setup: data bytes for USB setup, filled with
           |        |            |   zeros if not used
-----------+--------+------------+---------------------------------------------------
 0x30      |        |            | URB data. For ISO transfers the padding between
           |        |            |   each ISO packets is not transmitted.


  Allowed transfer_flags  | value      | control | interrupt | bulk     | isochronous
 -------------------------+------------+---------+-----------+----------+-------------
  URB_SHORT_NOT_OK        | 0x00000001 | only in | only in   | only in  | no
  URB_ISO_ASAP            | 0x00000002 | no      | no        | no       | yes
  URB_NO_TRANSFER_DMA_MAP | 0x00000004 | yes     | yes       | yes      | yes
  URB_NO_FSBR             | 0x00000020 | yes     | no        | no       | no
  URB_ZERO_PACKET         | 0x00000040 | no      | no        | only out | no
  URB_NO_INTERRUPT        | 0x00000080 | yes     | yes       | yes      | yes
  URB_FREE_BUFFER         | 0x00000100 | yes     | yes       | yes      | yes
  URB_DIR_MASK            | 0x00000200 | yes     | yes       | yes      | yes


USBIP_RET_SUBMIT: Reply for submitting an URB

 Offset    | Length | Value      | Description
-----------+--------+------------+---------------------------------------------------
 0         | 4      | 0x00000003 | command
-----------+--------+------------+---------------------------------------------------
 4         | 4      |            | seqnum: URB sequence number
-----------+--------+------------+---------------------------------------------------
 8         | 4      |            | devid
-----------+--------+------------+---------------------------------------------------
 0xC       | 4      |            | direction: 0: USBIP_DIR_OUT
           |        |            |            1: USBIP_DIR_IN
-----------+--------+------------+---------------------------------------------------
 0x10      | 4      |            | ep: endpoint number
-----------+--------+------------+---------------------------------------------------
 0x14      | 4      |            | status: zero for successful URB transaction,
           |        |            |   otherwise some kind of error happened.
-----------+--------+------------+---------------------------------------------------
 0x18      | 4      | n          | actual_length: number of URB data bytes
-----------+--------+------------+---------------------------------------------------
 0x1C      | 4      |            | start_frame: for an ISO frame the actually
           |        |            |   selected frame for transmit.
-----------+--------+------------+---------------------------------------------------
 0x20      | 4      |            | number_of_packets
-----------+--------+------------+---------------------------------------------------
 0x24      | 4      |            | error_count
-----------+--------+------------+---------------------------------------------------
 0x28      | 8      |            | setup: data bytes for USB setup, filled with
           |        |            |   zeros if not used
-----------+--------+------------+---------------------------------------------------
 0x30      | n      |            | URB data bytes. For ISO transfers the padding
           |        |            |   between each ISO packets is not transmitted.

USBIP_CMD_UNLINK: Unlink an URB

 Offset    | Length | Value      | Description
-----------+--------+------------+---------------------------------------------------
 0         | 4      | 0x00000002 | command: URB unlink command
-----------+--------+------------+---------------------------------------------------
 4         | 4      |            | seqnum: URB sequence number to unlink: FIXME: is this so?
-----------+--------+------------+---------------------------------------------------
 8         | 4      |            | devid
-----------+--------+------------+---------------------------------------------------
 0xC       | 4      |            | direction: 0: USBIP_DIR_OUT
           |        |            |            1: USBIP_DIR_IN
-----------+--------+------------+---------------------------------------------------
 0x10      | 4      |            | ep: endpoint number: zero
-----------+--------+------------+---------------------------------------------------
 0x14      | 4      |            | seqnum: the URB sequence number given previously
           |        |            |   at USBIP_CMD_SUBMIT.seqnum field
-----------+--------+------------+---------------------------------------------------
 0x30      | n      |            | URB data bytes. For ISO transfers the padding
           |        |            |   between each ISO packets is not transmitted.

USBIP_RET_UNLINK: Reply for URB unlink

 Offset    | Length | Value      | Description
-----------+--------+------------+---------------------------------------------------
 0         | 4      | 0x00000004 | command: reply for the URB unlink command
-----------+--------+------------+---------------------------------------------------
 4         | 4      |            | seqnum: the unlinked URB sequence number
-----------+--------+------------+---------------------------------------------------
 8         | 4      |            | devid
-----------+--------+------------+---------------------------------------------------
 0xC       | 4      |            | direction: 0: USBIP_DIR_OUT
           |        |            |            1: USBIP_DIR_IN
-----------+--------+------------+---------------------------------------------------
 0x10      | 4      |            | ep: endpoint number
-----------+--------+------------+---------------------------------------------------
 0x14      | 4      |            | status: This is the value contained in the
           |        |            |   urb->status in the URB completition handler.
           |        |            |   FIXME: a better explanation needed.
-----------+--------+------------+---------------------------------------------------
 0x30      | n      |            | URB data bytes. For ISO transfers the padding
           |        |            |   between each ISO packets is not transmitted.


================================================
FILE: python/LICENSE
================================================
Copyright (c) 2014 Yaron Shani <yaron.shani@gmail.com>.
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:

   1. Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.

   2. Redistributions in binary form must reproduce the above
      copyright notice, this list of conditions and the following
      disclaimer in the documentation and/or other materials provided
      with the distribution.

This software is provided ``as is'' and any express or implied
warranties, including, but not limited to, the implied warranties of
merchantability and fitness for a particular purpose are
disclaimed. In no event shall author or contributors be liable for any
direct, indirect, incidental, special, exemplary, or consequential
damages (including, but not limited to, procurement of substitute
goods or services; loss of use, data, or profits; or business
interruption) however caused and on any theory of liability, whether
in contract, strict liability, or tort (including negligence or
otherwise) arising in any way out of the use of this software, even if
advised of the possibility of such damage.

================================================
FILE: python/USBIP.py
================================================

import socket
import struct
import types

class BaseStucture:
    def __init__(self, **kwargs):
        self.init_from_dict(**kwargs)
        for field in self._fields_:
            if len(field) > 2:
                if not hasattr(self, field[0]):
                    setattr(self, field[0], field[2])

    def init_from_dict(self, **kwargs):
        for key, value in kwargs.items():
            setattr(self, key, value)

    def size(self):
        return struct.calcsize(self.format())

    def format(self):

        pack_format = '>'
        for field in self._fields_:
            if type(field[1]) is types.InstanceType:
                if BaseStucture in field[1].__class__.__bases__:
                    pack_format += str(field[1].size()) + 's'
            elif 'si' == field[1]:
                pack_format += 'c'
            elif '<' in field[1]:
                pack_format += field[1][1:]
            else:
                pack_format += field[1]
        return pack_format

    def pack(self):
        values = []
        for field in self._fields_:
            if type(field[1]) is types.InstanceType:
                if BaseStucture in field[1].__class__.__bases__:
                     values.append(getattr(self, field[0], 0).pack())
            else:
                if 'si' == field[1]:
                    values.append(chr(getattr(self, field[0], 0)))
                else:
                    values.append(getattr(self, field[0], 0))
        return struct.pack(self.format(), *values)


    def unpack(self, buf):
        values = struct.unpack(self.format(), buf)
        i=0
        keys_vals = {}
        for val in values:
            if '<' in self._fields_[i][1][0]:
                val = struct.unpack('<' +self._fields_[i][1][1], struct.pack('>' + self._fields_[i][1][1], val))[0]
            keys_vals[self._fields_[i][0]]=val
            i+=1

        self.init_from_dict(**keys_vals)


def int_to_hex_string(val):
    sval= format(val, 'x')
    if  len(sval) < 16:
       for i in range(len(sval),16):
         sval= '0'+sval
         #sval= sval+'0'
    print sval  
    return sval.decode('hex')


class USBIPHeader(BaseStucture):
    _fields_ = [
        ('version', 'H', 273),
        ('command', 'H'),
        ('status', 'I')
    ]



class USBInterface(BaseStucture):
    _fields_ = [
        ('bInterfaceClass', 'B'),
        ('bInterfaceSubClass', 'B'),
        ('bInterfaceProtocol', 'B'),
        ('align', 'B', 0)
    ]


class OPREPDevList(BaseStucture):
    _fields_ = [
        ('base', USBIPHeader()),
        ('nExportedDevice', 'I'),
        ('usbPath', '256s'),
        ('busID', '32s'),
        ('busnum', 'I'),
        ('devnum', 'I'),
        ('speed', 'I'),
        ('idVendor', 'H'),
        ('idProduct', 'H'),
        ('bcdDevice', 'H'),
        ('bDeviceClass', 'B'),
        ('bDeviceSubClass', 'B'),
        ('bDeviceProtocol', 'B'),
        ('bConfigurationValue', 'B'),
        ('bNumConfigurations', 'B'),
        ('bNumInterfaces', 'B'),
        ('interfaces', USBInterface())
    ]



class OPREPImport(BaseStucture):
    _fields_ = [
        ('base', USBIPHeader()),
        ('usbPath', '256s'),
        ('busID', '32s'),
        ('busnum', 'I'),
        ('devnum', 'I'),
        ('speed', 'I'),
        ('idVendor', 'H'),
        ('idProduct', 'H'),
        ('bcdDevice', 'H'),
        ('bDeviceClass', 'B'),
        ('bDeviceSubClass', 'B'),
        ('bDeviceProtocol', 'B'),
        ('bConfigurationValue', 'B'),
        ('bNumConfigurations', 'B'),
        ('bNumInterfaces', 'B')
    ]

class USBIPRETSubmit(BaseStucture):
    _fields_ = [
        ('command', 'I'),
        ('seqnum', 'I'),
        ('devid', 'I'),
        ('direction', 'I'),
        ('ep', 'I'),
        ('status', 'I'),
        ('actual_length', 'I'),
        ('start_frame', 'I'),
        ('number_of_packets', 'I'),
        ('error_count', 'I'),
        ('setup', 'Q')
    ]

    def pack(self):
        packed_data = BaseStucture.pack(self)
        packed_data += self.data
        return packed_data

class USBIPCMDSubmit(BaseStucture):
    _fields_ = [
        ('command', 'I'),
        ('seqnum', 'I'),
        ('devid', 'I'),
        ('direction', 'I'),
        ('ep', 'I'),
        ('transfer_flags', 'I'),
        ('transfer_buffer_length', 'I'),
        ('start_frame', 'I'),
        ('number_of_packets', 'I'),
        ('interval', 'I'),
        ('setup', 'Q')
    ]

class USBIPUnlinkReq(BaseStucture):
    _fields_ = [
        ('command', 'I', 0x2),
        ('seqnum', 'I'),
        ('devid', 'I', 0x2),
        ('direction', 'I'),
        ('ep', 'I'),
        ('transfer_flags', 'I'),
        ('transfer_buffer_length', 'I'),
        ('start_frame', 'I'),
        ('number_of_packets', 'I'),
        ('interval', 'I'),
        ('setup', 'Q')
    ]




class StandardDeviceRequest(BaseStucture):
    _fields_ = [
        ('bmRequestType', 'B'),
        ('bRequest', 'B'),
        ('wValue', 'H'),
        ('wIndex', 'H'),
        ('wLength', '<H')
    ]

class DeviceDescriptor(BaseStucture):
    _fields_ = [
        ('bLength', 'B', 18),
        ('bDescriptorType', 'B', 1),
        ('bcdUSB', 'H', 0x1001),
        ('bDeviceClass', 'B'),
        ('bDeviceSubClass', 'B'),
        ('bDeviceProtocol', 'B'),
        ('bMaxPacketSize0', 'B'),
        ('idVendor', 'H'),
        ('idProduct', 'H'),
        ('bcdDevice', 'H'),
        ('iManufacturer', 'B'),
        ('iProduct', 'B'),
        ('iSerialNumber', 'B'),
        ('bNumConfigurations', 'B')
    ]


class DeviceConfigurations(BaseStucture):
    _fields_ = [
        ('bLength', 'B', 9),
        ('bDescriptorType', 'B', 2),
        ('wTotalLength', 'H', 0x2200),
        ('bNumInterfaces', 'B', 1),
        ('bConfigurationValue', 'B', 1),
        ('iConfiguration', 'B', 0),
        ('bmAttributes', 'B', 0x80),
        ('bMaxPower', 'B', 0x32)
    ]


class InterfaceDescriptor(BaseStucture):
    _fields_ = [
        ('bLength', 'B', 9),
        ('bDescriptorType', 'B', 4),
        ('bInterfaceNumber', 'B', 0),
        ('bAlternateSetting', 'B', 0),
        ('bNumEndpoints', 'B', 1),
        ('bInterfaceClass', 'B', 3),
        ('bInterfaceSubClass', 'B', 1),
        ('bInterfaceProtocol', 'B', 2),
        ('iInterface', 'B', 0)
    ]


class EndPoint(BaseStucture):
    _fields_ = [
        ('bLength', 'B', 7),
        ('bDescriptorType', 'B', 0x5),
        ('bEndpointAddress', 'B', 0x81),
        ('bmAttributes', 'B', 0x3),
        ('wMaxPacketSize', 'H', 0x8000),
        ('bInterval', 'B', 0x0A)
    ]



class USBRequest():
    def __init__(self, **kwargs):
        for key, value in kwargs.items():
            setattr(self, key, value)


class USBDevice():
    '''interfaces = [USBInterface(bInterfaceClass=0x3, bInterfaceSubClass=0x0, bInterfaceProtocol=0x0)]
    speed=2
    speed = 2
    vendorID = 0xc410
    productID = 0x0
    bcdDevice = 0x0
    bDeviceClass = 0x0
    bDeviceSubClass = 0x0
    bDeviceProtocol = 0x0
    bNumConfigurations = 1
    bConfigurationValue = 1
    bNumInterfaces = 1'''

    def __init__(self):
        self.generate_raw_configuration()

    def generate_raw_configuration(self):
        str = self.configurations[0].pack()
        str += self.configurations[0].interfaces[0].pack()
        str += self.configurations[0].interfaces[0].descriptions[0].pack()
        str += self.configurations[0].interfaces[0].endpoints[0].pack()
        self.all_configurations = str

    def send_usb_req(self, usb_req, usb_res, usb_len,  status=0):
        self.connection.sendall(USBIPRETSubmit(command=0x3,
                                                   seqnum=usb_req.seqnum,
                                                   ep=0,
                                                   status=status,
                                                   actual_length=usb_len,
                                                   start_frame=0x0,
                                                   number_of_packets=0x0,
                                                   interval=0x0,
                                                   data=usb_res).pack())

    def handle_get_descriptor(self, control_req, usb_req):
        handled = False
        print "handle_get_descriptor {}".format(control_req.wValue,'n')
        if control_req.wValue == 0x1: # Device
            handled = True
            ret=DeviceDescriptor(bDeviceClass=self.bDeviceClass,
                                 bDeviceSubClass=self.bDeviceSubClass,
                                 bDeviceProtocol=self.bDeviceProtocol,
                                 bMaxPacketSize0=0x8,
                                 idVendor=self.vendorID,
                                 idProduct=self.productID,
                                 bcdDevice=self.bcdDevice,
                                 iManufacturer=0,
                                 iProduct=0,
                                 iSerialNumber=0,
                                 bNumConfigurations=1).pack()
            self.send_usb_req(usb_req, ret, len(ret))
        elif control_req.wValue == 0x2: # configuration
            handled = True
            ret= self.all_configurations[:control_req.wLength]
            self.send_usb_req(usb_req, ret, len(ret))

        elif control_req.wValue == 0xA: # config status ???
            handled = True
            self.send_usb_req(usb_req,'',0,1)


        return handled
 
   


    def handle_set_configuration(self, control_req, usb_req):
        handled = False
        print "handle_set_configuration {}".format(control_req.wValue,'n')
        handled = True
        self.send_usb_req(usb_req,'',0,0)
        return handled

    def handle_usb_control(self, usb_req):
        control_req = StandardDeviceRequest()
        control_req.unpack(int_to_hex_string(usb_req.setup))
        handled = False
        print "  UC Request Type {}".format(control_req.bmRequestType)
        print "  UC Request {}".format(control_req.bRequest)
        print "  UC Value  {}".format(control_req.wValue)
        print "  UCIndex  {}".format(control_req.wIndex)
        print "  UC Length {}".format(control_req.wLength)
        if control_req.bmRequestType == 0x80: # Host Request
            if control_req.bRequest == 0x06: # Get Descriptor
                handled = self.handle_get_descriptor(control_req, usb_req)
            if control_req.bRequest == 0x00: # Get STATUS
                self.send_usb_req(usb_req, "\x01\x00", 2);
                handled = True

        if control_req.bmRequestType == 0x00: # Host Request
            if control_req.bRequest == 0x09: # Set Configuration
                handled = self.handle_set_configuration(control_req, usb_req)

        if not handled:
            self.handle_unknown_control(control_req, usb_req)

    def handle_usb_request(self, usb_req):
        if usb_req.ep == 0:
            self.handle_usb_control(usb_req)
        else:
            self.handle_data(usb_req)

class USBContainer:
    usb_devices = []

    def add_usb_device(self, usb_device):
        self.usb_devices.append(usb_device)

    def handle_attach(self):
        return OPREPImport(base=USBIPHeader(command=3, status=0),
                           usbPath='/sys/devices/pci0000:00/0000:00:01.2/usb1/1-1',
                           busID='1-1',
                           busnum=1,
                           devnum=2,
                           speed=2,
                           idVendor=self.usb_devices[0].vendorID,
                           idProduct=self.usb_devices[0].productID,
                           bcdDevice=self.usb_devices[0].bcdDevice,
                           bDeviceClass=self.usb_devices[0].bDeviceClass,
                           bDeviceSubClass=self.usb_devices[0].bDeviceSubClass,
                           bDeviceProtocol=self.usb_devices[0].bDeviceProtocol,
                           bNumConfigurations=self.usb_devices[0].bNumConfigurations,
                           bConfigurationValue=self.usb_devices[0].bConfigurationValue,
                           bNumInterfaces=self.usb_devices[0].bNumInterfaces)

    def handle_device_list(self):
        usb_dev = self.usb_devices[0]
        return OPREPDevList(base=USBIPHeader(command=5,status=0),
                            nExportedDevice=1,
                            usbPath='/sys/devices/pci0000:00/0000:00:01.2/usb1/1-1',
                            busID='1-1',
                            busnum=1,
                            devnum=2,
                            speed=2,
                            idVendor=usb_dev.vendorID,
                            idProduct=usb_dev.productID,
                            bcdDevice=usb_dev.bcdDevice,
                            bDeviceClass=usb_dev.bDeviceClass,
                            bDeviceSubClass=usb_dev.bDeviceSubClass,
                            bDeviceProtocol=usb_dev.bDeviceProtocol,
                            bNumConfigurations=usb_dev.bNumConfigurations,
                            bConfigurationValue=usb_dev.bConfigurationValue,
                            bNumInterfaces=usb_dev.bNumInterfaces,
                            interfaces=USBInterface(bInterfaceClass=usb_dev.configurations[0].interfaces[0].bInterfaceClass,
                                                    bInterfaceSubClass=usb_dev.configurations[0].interfaces[0].bInterfaceSubClass,
                                                    bInterfaceProtocol=usb_dev.configurations[0].interfaces[0].bInterfaceProtocol))


    def run(self, ip='0.0.0.0', port=3240):
        s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
        s.bind((ip, port))
        s.listen(5)
        attached = False
        while 1:
            conn, addr = s.accept()
            print 'Connection address:', addr
            req = USBIPHeader()
            while 1:
                if not attached:
                    data = conn.recv(8)
                    if not data:
                        break
                    req.unpack(data)
                    print 'Header Packet'
                    print 'command:', hex(req.command)
                    if req.command == 0x8005:
                        print 'list of devices'
                        conn.sendall(self.handle_device_list().pack())
                    elif req.command == 0x8003:
                        print 'attach device'
                        conn.recv(32)  # receive bus id
                        conn.sendall(self.handle_attach().pack())
                        attached = True
                else:
                    print '----------------' 
                    print 'handles requests'
                    cmd = USBIPCMDSubmit()
                    data = conn.recv(cmd.size())
                    cmd.unpack(data)
                    print "usbip cmd {}".format(cmd.command,'x')
                    print "usbip seqnum {}".format(cmd.seqnum,'x')
                    print "usbip devid {}".format(cmd.devid,'x')
                    print "usbip direction {}".format(cmd.direction,'x')
                    print "usbip ep {}".format(cmd.ep,'x')
                    print "usbip flags {}".format(cmd.transfer_flags,'x')
                    print "usbip number of packets {}".format(cmd.number_of_packets,'x')
                    print "usbip interval {}".format(cmd.interval,'x')
                    print "usbip setup {}".format(cmd.setup,'x')
                    print "usbip buffer lenght  {}".format(cmd.transfer_buffer_length,'x')
                    usb_req = USBRequest(seqnum=cmd.seqnum,
                                         devid=cmd.devid,
                                         direction=cmd.direction,
                                         ep=cmd.ep,
                                         flags=cmd.transfer_flags,
                                         numberOfPackets=cmd.number_of_packets,
                                         interval=cmd.interval,
                                         setup=cmd.setup,
                                         data=data)
                    self.usb_devices[0].connection = conn
                    self.usb_devices[0].handle_usb_request(usb_req)
            conn.close()



================================================
FILE: python/hid-keyboard.py
================================================
import time
import random
import datetime
from USBIP import BaseStucture, USBDevice, InterfaceDescriptor, DeviceConfigurations, EndPoint, USBContainer


#data event counter    
count =0

# Emulating USB keyboard

# HID Configuration

class HIDClass(BaseStucture):
    _fields_ = [
        ('bLength', 'B', 9),
        ('bDescriptorType', 'B', 0x21),  # HID
        ('bcdHID', 'H'),
        ('bCountryCode', 'B'),
        ('bNumDescriptors', 'B'),
        ('bDescriptprType2', 'B'),
        ('wDescriptionLength', 'H'),
    ]


hid_class = HIDClass(bcdHID=0x0100,  # keyboard
                     bCountryCode=0x0,
                     bNumDescriptors=0x1,
                     bDescriptprType2=0x22,  # Report
                     wDescriptionLength=0x3F00)  # Little endian


interface_d = InterfaceDescriptor(bAlternateSetting=0,
                                  bNumEndpoints=1,
                                  bInterfaceClass=3,  # class HID
                                  bInterfaceSubClass=1,
                                  bInterfaceProtocol=1, #keyboard
                                  iInterface=0)

end_point = EndPoint(bEndpointAddress=0x81,
                     bmAttributes=0x3,
                     wMaxPacketSize=0x0800,  # Little endian
                     bInterval=0xFF)  # interval to report


configuration = DeviceConfigurations(wTotalLength=0x2200,
                                     bNumInterfaces=0x1,
                                     bConfigurationValue=0x1,
                                     iConfiguration=0x0,  # No string
                                     bmAttributes=0x80,  # valid self powered
                                     bMaxPower=50)  # 100 mah current

interface_d.descriptions = [hid_class]  # Supports only one description
interface_d.endpoints = [end_point]  # Supports only one endpoint
configuration.interfaces = [interface_d]   # Supports only one interface


class USBHID(USBDevice):
    vendorID = 0x0627
    productID = 0x01
    bcdDevice = 0x0
    bcdUSB = 0x0
    bNumConfigurations = 0x1
    bNumInterfaces = 0x1
    bConfigurationValue = 0x1
    configurations = []
    bDeviceClass = 0x0
    bDeviceSubClass = 0x0
    bDeviceProtocol = 0x0
    configurations = [configuration]  # Supports only one configuration

    def __init__(self):
        USBDevice.__init__(self)
        self.start_time = datetime.datetime.now()

    def generate_keyboard_report(self):

        arr = [0x05, 0x01, 
	       0x09, 0x06,		#Usage Page (Generic Desktop),
	       0xA1, 0x01,		#Usage (Keyboard),
	       0x05, 0x07, 		#Collection (Application),
	       0x19, 0xE0, 		#Usage Page (Key Codes);
	       0x29, 0xE7, 		#Usage Minimum (224),
	       0x15, 0x00, 		#Usage Maximum (231),
	       0x25, 0x01, 		#Logical Minimum (0),
	       0x75, 0x01, 		#Logical Maximum (1),
	       0x95, 0x08, 		#Report Size (1),
	       0x81, 0x02, 		#Report Count (8),
	       0x95, 0x01, 		#Input (Data, Variable, Absolute),
	       0x75, 0x08, 		#Report Count (1),
	       0x81, 0x01, 		#Report Size (8),
	       0x95, 0x05, 		#Input (Constant),
	       0x75, 0x01, 		#Report Count (5),
	       0x05, 0x08, 		#Report Size (1),
	       0x19, 0x01, 		#Usage Page (Page# for LEDs),
	       0x29, 0x05, 		#Usage Minimum (1),
	       0x91, 0x02, 		#Usage Maximum (5),
	       0x95, 0x01, 		#Output (Data, Variable, Absolute),
	       0x75, 0x03, 		#Report Count (1),
	       0x91, 0x01, 		#Report Size (3),
	       0x95, 0x06, 		#Output (Constant),
	       0x75, 0x08, 		#Report Count (6),
	       0x15, 0x00, 		#Report Size (8),
	       0x25, 0x65, 		#Logical Minimum (0),
	       0x05, 0x07, 		#Logical Maximum(101),
	       0x19, 0x00, 		#Usage Page (Key Codes),
	       0x29, 0x65, 		#Usage Minimum (0),
	       0x81, 0x00, 		#Usage Maximum (101), #Input (Data, Array),
	       0xC0]  			#End Collection 
        return_val = ''
        for val in arr:
            return_val+=chr(val)
        return return_val

    def comp(self,val):
        if val >= 0: 
          return val
        else:
          return 256+val



    def handle_data(self, usb_req):
        # Sending random keyboard data
        # Send data only for 5 seconds
        #if (datetime.datetime.now() - self.start_time).seconds < 10:
	 print "handle data"
         global count
         if count < 100:
            if (count % 2) == 0:
               return_val = "\x00\x00" + str(chr(random.randint(4,29))) + "\x00\x00\x00\x00\x00"
            else: 
               return_val = "\x00\x00\x00\x00\x00\x00\x00\x00" 
            self.send_usb_req(usb_req, return_val, len(return_val))
         time.sleep(0.05)
         count=count+1


    def handle_unknown_control(self, control_req, usb_req):
        if control_req.bmRequestType == 0x81:
            if control_req.bRequest == 0x6:  # Get Descriptor
                if control_req.wValue == 0x22:  # send initial report
                    print 'send initial report'
                    ret=self.generate_keyboard_report()
                    self.send_usb_req(usb_req, ret, len(ret))

        if control_req.bmRequestType == 0x21:  # Host Request
            if control_req.bRequest == 0x0a:  # set idle
                print 'Idle'
                # Idle
                self.send_usb_req(usb_req, '', 0,0)
                pass
            if control_req.bRequest == 0x09:  # set report
                print 'set report'
                data = usb_container.usb_devices[0].connection.recv(control_req.wLength)
                #use data ? 
                self.send_usb_req(usb_req, '', 0,0)
                pass


usb_Dev = USBHID()
usb_container = USBContainer()
usb_container.add_usb_device(usb_Dev)  # Supports only one device!
usb_container.run()

# Run in cmd: usbip.exe -a 127.0.0.1 "1-1"


================================================
FILE: python/hid-mouse.py
================================================
import time
import random
import datetime
from USBIP import BaseStucture, USBDevice, InterfaceDescriptor, DeviceConfigurations, EndPoint, USBContainer


#data event counter    
count =0

# Emulating USB mouse

# HID Configuration

class HIDClass(BaseStucture):
    _fields_ = [
        ('bLength', 'B', 9),
        ('bDescriptorType', 'B', 0x21),  # HID
        ('bcdHID', 'H'),
        ('bCountryCode', 'B'),
        ('bNumDescriptors', 'B'),
        ('bDescriptprType2', 'B'),
        ('wDescriptionLength', 'H'),
    ]


hid_class = HIDClass(bcdHID=0x0100,  # Mouse
                     bCountryCode=0x0,
                     bNumDescriptors=0x1,
                     bDescriptprType2=0x22,  # Report
                     wDescriptionLength=0x3400)  # Little endian


interface_d = InterfaceDescriptor(bAlternateSetting=0,
                                  bNumEndpoints=1,
                                  bInterfaceClass=3,  # class HID
                                  bInterfaceSubClass=1,
                                  bInterfaceProtocol=2,
                                  iInterface=0)

end_point = EndPoint(bEndpointAddress=0x81,
                     bmAttributes=0x3,
                     wMaxPacketSize=0x0800,  # Little endian
                     bInterval=0xFF)  # interval to report


configuration = DeviceConfigurations(wTotalLength=0x2200,
                                     bNumInterfaces=0x1,
                                     bConfigurationValue=0x1,
                                     iConfiguration=0x0,  # No string
                                     bmAttributes=0x80,  # valid self powered
                                     bMaxPower=50)  # 100 mah current

interface_d.descriptions = [hid_class]  # Supports only one description
interface_d.endpoints = [end_point]  # Supports only one endpoint
configuration.interfaces = [interface_d]   # Supports only one interface


class USBHID(USBDevice):
    vendorID = 0x0627
    productID = 0x0
    bcdDevice = 0x0
    bcdUSB = 0x0
    bNumConfigurations = 0x1
    bNumInterfaces = 0x1
    bConfigurationValue = 0x1
    configurations = []
    bDeviceClass = 0x0
    bDeviceSubClass = 0x0
    bDeviceProtocol = 0x0
    configurations = [configuration]  # Supports only one configuration

    def __init__(self):
        USBDevice.__init__(self)
        self.start_time = datetime.datetime.now()

    def generate_mouse_report(self):

        arr = [0x05, 0x01,		# Usage Page (Generic Desktop)
               0x09, 0x02,		# Usage (Mouse)
               0xa1, 0x01,		# Collection (Application)
               0x09, 0x01,		#   Usage (Pointer)
               0xa1, 0x00,		#   Collection (Physical)
               0x05, 0x09,		#     Usage Page (Button)
               0x19, 0x01,		#     Usage Minimum (1)
               0x29, 0x03,		#     Usage Maximum (3)
               0x15, 0x00,		#     Logical Minimum (0)
               0x25, 0x01,		#     Logical Maximum (1)
               0x95, 0x03,		#     Report Count (3)
               0x75, 0x01,		#     Report Size (1)
               0x81, 0x02,		#     Input (Data, Variable, Absolute)
               0x95, 0x01,		#     Report Count (1)
               0x75, 0x05,		#     Report Size (5)
               0x81, 0x01,		#     Input (Constant)
               0x05, 0x01,		#     Usage Page (Generic Desktop)
               0x09, 0x30,		#     Usage (X)
               0x09, 0x31,		#     Usage (Y)
               0x09, 0x38,		#     Usage (Wheel)
               0x15, 0x81,		#     Logical Minimum (-0x7f)
               0x25, 0x7f,		#     Logical Maximum (0x7f)
               0x75, 0x08,		#     Report Size (8)
               0x95, 0x03,		#     Report Count (3)
               0x81, 0x06,		#     Input (Data, Variable, Relative)
               0xc0,		#   End Collection
               0xc0]		# End Collection
        return_val = ''
        for val in arr:
            return_val+=chr(val)
        return return_val

    def comp(self,val):
        if val >= 0: 
          return val
        else:
          return 256+val



    def handle_data(self, usb_req):
        # Sending random mouse data
        # Send data only for 5 seconds
        #if (datetime.datetime.now() - self.start_time).seconds < 10:
         global count
         if count < 100:
            return_val = chr(0x0) + chr(self.comp(random.randint(-5, 5))) + chr(self.comp(random.randint(-5, 5))) + chr(0)
            self.send_usb_req(usb_req, return_val, len(return_val))
            time.sleep(0.05)
         count=count+1


    def handle_unknown_control(self, control_req, usb_req):
        if control_req.bmRequestType == 0x81:
            if control_req.bRequest == 0x6:  # Get Descriptor
                if control_req.wValue == 0x22:  # send initial report
                    print 'send initial report'
                    ret=self.generate_mouse_report()
                    self.send_usb_req(usb_req, ret, len(ret))

        if control_req.bmRequestType == 0x21:  # Host Request
            if control_req.bRequest == 0x0a:  # set idle
                print 'Idle'
                # Idle
                #self.send_ok(usb_req)
                self.send_usb_req(usb_req,'',0,0);
                pass


usb_Dev = USBHID()
usb_container = USBContainer()
usb_container.add_usb_device(usb_Dev)  # Supports only one device!
usb_container.run()

# Run in cmd: usbip.exe -a 127.0.0.1 "1-1"