366 lines
9.0 KiB
C
366 lines
9.0 KiB
C
#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
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#define _GNU_SOURCE 1
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#if defined(RTLD_NEXT)
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#define REAL_LIBC RTLD_NEXT
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#else
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#define REAL_LIBC ((void *) -1L)
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#endif
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#include <dlfcn.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#include <stdio.h>
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#include "xilinx.h"
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#define SNIFFLEN 4096
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static unsigned char lastbuf[4096];
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void hexdump(unsigned char *buf, int len);
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void diff(unsigned char *buf1, unsigned char *buf2, int len);
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void parse_wdioctlreq(unsigned char *wdioctl, unsigned int request) {
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struct header_struct* wdheader = (struct header_struct*)wdioctl;
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if (wdheader->magic != MAGIC) {
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fprintf(stderr,"!!!ERROR: Header does not match!!!\n");
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return;
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}
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fprintf(stderr, "Request: ");
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switch(request) {
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case VERSION:
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fprintf(stderr,"VERSION");
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break;
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case LICENSE:
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fprintf(stderr,"LICENSE");
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fprintf(stderr," \"%s\" (XX,XX)", ((struct license_struct*)(wdheader->data))->cLicense);
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break;
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case TRANSFER:
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fprintf(stderr,"TRANSFER");
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break;
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case USB_TRANSFER:
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fprintf(stderr,"USB_TRANSFER");
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#if 0
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{
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struct usb_transfer *ut = (struct usb_transfer*)(wdheader->data);
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fprintf(stderr," unique: %d, pipe: %d, read: %d, options: %x, size: %d, timeout: %x\n", ut->dwUniqueID, ut->dwPipeNum, ut->fRead, ut->dwOptions, ut->dwBufferSize, ut->dwTimeout);
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memcpy(lastbuf, ut->pBuffer, ut->dwBufferSize);
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hexdump(ut->pBuffer, ut->dwBufferSize);
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fprintf(stderr,"\n");
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}
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fprintf(stderr,"\n");
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#endif
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break;
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case EVENT_UNREGISTER:
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fprintf(stderr,"EVENT_UNREGISTER");
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break;
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case INT_DISABLE:
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fprintf(stderr,"INT_DISABLE");
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break;
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case INT_WAIT:
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fprintf(stderr,"INT_WAIT");
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break;
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case CARD_UNREGISTER:
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fprintf(stderr,"CARD_UNREGISTER");
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break;
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case USB_GET_DEVICE_DATA:
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fprintf(stderr,"USB_GET_DEVICE_DATA");
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break;
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case INT_ENABLE:
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fprintf(stderr,"INT_ENABLE");
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break;
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case EVENT_PULL:
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fprintf(stderr,"EVENT_PULL");
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break;
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case USB_SET_INTERFACE:
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fprintf(stderr,"USB_SET_INTERFACE");
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break;
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case EVENT_REGISTER:
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{
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struct event *e = (struct event*)(wdheader->data);
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fprintf(stderr,"%x:%x ", e->u.Usb.deviceId.dwVendorId, e->u.Usb.deviceId.dwProductId);
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fprintf(stderr,"match: %04x:%04x\n", e->matchTables[0].VendorId, e->matchTables[0].ProductId);
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}
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memcpy(lastbuf, wdheader->data, wdheader->size);
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fprintf(stderr,"EVENT_REGISTER");
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break;
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case CARD_REGISTER:
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break;
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default:
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memcpy(lastbuf, wdheader->data, wdheader->size);
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fprintf(stderr,"\n");
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hexdump(wdheader->data, wdheader->size);
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fprintf(stderr,"\n");
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fprintf(stderr,"Unknown(%x)",request);
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}
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fprintf(stderr, ", size: %d\n", wdheader->size);
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}
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void parse_wdioctlans(unsigned char *wdioctl, unsigned int request, int result) {
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struct header_struct* wdheader = (struct header_struct*)wdioctl;
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if (wdheader->magic != MAGIC) {
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fprintf(stderr,"!!!ERROR: Header does not match!!!\n");
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return;
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}
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fprintf(stderr, "Answer: %d ", result);
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switch(request) {
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case VERSION:
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fprintf(stderr,"\"%s\" (%d)", ((struct version_struct*)(wdheader->data))->version, ((struct version_struct*)(wdheader->data))->versionul);
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break;
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case LICENSE:
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fprintf(stderr,"\"%s\" (XX,XX)", ((struct license_struct*)(wdheader->data))->cLicense);
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break;
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case TRANSFER:
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case EVENT_UNREGISTER:
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case INT_DISABLE:
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case INT_WAIT:
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case CARD_UNREGISTER:
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case USB_GET_DEVICE_DATA:
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case INT_ENABLE:
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case EVENT_PULL:
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case USB_SET_INTERFACE:
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case CARD_REGISTER:
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break;
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case EVENT_REGISTER:
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fprintf(stderr,"\n");
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diff(lastbuf, wdheader->data, wdheader->size);
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break;
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case USB_TRANSFER:
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#if 0
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{
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struct usb_transfer *ut = (struct usb_transfer*)(wdheader->data);
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fprintf(stderr,"\n");
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hexdump(ut->pBuffer, ut->dwBufferSize);
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fprintf(stderr,"\n");
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diff(lastbuf, ut->pBuffer, ut->dwBufferSize);
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}
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#endif
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break;
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default:
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fprintf(stderr,"\n");
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hexdump(wdheader->data, wdheader->size);
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fprintf(stderr,"\n");
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diff(lastbuf, wdheader->data, wdheader->size);
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break;
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}
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fprintf(stderr, ", size: %d\n", wdheader->size);
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}
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int do_wdioctl(unsigned int request, unsigned char *wdioctl) {
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struct header_struct* wdheader = (struct header_struct*)wdioctl;
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struct version_struct *version;
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if (wdheader->magic != MAGIC) {
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fprintf(stderr,"!!!ERROR: Header does not match!!!\n");
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return;
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}
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switch(request) {
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case VERSION:
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version = (struct version_struct*)(wdheader->data);
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strcpy(version->version, "WinDriver no more");
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version->versionul = 999;
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fprintf(stderr,"faking VERSION\n");
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break;
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case CARD_REGISTER:
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{
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struct card_register* cr = (struct card_register*)(wdheader->data);
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/* Todo: LPT-Port already in use */
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}
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fprintf(stderr,"faking CARD_REGISTER\n");
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break;
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case USB_TRANSFER:
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fprintf(stderr,"in USB_TRANSFER");
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{
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struct usb_transfer *ut = (struct usb_transfer*)(wdheader->data);
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fprintf(stderr," unique: %d, pipe: %d, read: %d, options: %x, size: %d, timeout: %x\n", ut->dwUniqueID, ut->dwPipeNum, ut->fRead, ut->dwOptions, ut->dwBufferSize, ut->dwTimeout);
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fprintf(stderr,"setup packet: ");
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hexdump(ut->SetupPacket, 8);
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if (!ut->fRead && ut->dwBufferSize)
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{
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hexdump(ut->pBuffer, ut->dwBufferSize);
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fprintf(stderr,"\n");
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}
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}
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case LICENSE:
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case TRANSFER:
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case EVENT_UNREGISTER:
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case INT_DISABLE:
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case INT_WAIT:
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case CARD_UNREGISTER:
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case USB_GET_DEVICE_DATA:
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case INT_ENABLE:
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case EVENT_PULL:
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case USB_SET_INTERFACE:
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case EVENT_REGISTER:
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default:
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return -1;
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}
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return 0;
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}
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typedef int (*open_funcptr_t) (const char *, int, mode_t);
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static windrvrfd = 0;
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static void* mmapped = NULL;
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static size_t mmapplen = 0;
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int open (const char *pathname, int flags, ...)
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{
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static open_funcptr_t func = NULL;
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mode_t mode = 0;
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va_list args;
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int fd;
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if (!func)
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func = (open_funcptr_t) dlsym (REAL_LIBC, "open");
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if (flags & O_CREAT) {
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va_start(args, flags);
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mode = va_arg(args, mode_t);
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va_end(args);
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}
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fd = (*func) (pathname, flags, mode);
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if (!strcmp (pathname, "/dev/windrvr6")) {
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fprintf(stderr,"opening windrvr6\n");
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windrvrfd = fd;
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}
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return fd;
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}
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void diff(unsigned char *buf1, unsigned char *buf2, int len) {
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int i;
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for(i=0; i<len; i++) {
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if (buf1[i] != buf2[i]) {
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fprintf(stderr,"Diff at %d: %02x(%c)->%02x(%c)\n", i, buf1[i], ((buf1[i] >= 31 && buf1[i] <= 126)?buf1[i]:'.'), buf2[i], ((buf2[i] >= 31 && buf2[i] <= 126)?buf2[i]:'.'));
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}
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}
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}
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void hexdump(unsigned char *buf, int len) {
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int i;
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for(i=0; i<len; i++) {
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fprintf(stderr,"%02x ", buf[i]);
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if ((i % 16) == 15)
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fprintf(stderr,"\n");
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}
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}
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int ioctl(int fd, int request, ...)
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{
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static int (*func) (int, int, void *) = NULL;
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va_list args;
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void *argp;
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int ret;
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if (!func)
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func = (int (*) (int, int, void *)) dlsym (REAL_LIBC, "ioctl");
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va_start (args, request);
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argp = va_arg (args, void *);
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va_end (args);
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if (fd == windrvrfd) {
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parse_wdioctlreq(argp, request);
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if ((ret = do_wdioctl(request, argp)))
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ret = (*func) (fd, request, argp);
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} else {
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ret = (*func) (fd, request, argp);
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}
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if (fd == windrvrfd) {
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parse_wdioctlans(argp, request, ret);
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}
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return ret;
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}
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#if 0
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void *mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset)
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{
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static void* (*func) (void *, size_t, int, int, int, off_t) = NULL;
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void *ret;
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if (!func)
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func = (void* (*) (void *, size_t, int, int, int, off_t)) dlsym (REAL_LIBC, "mmap");
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ret = (*func) (start, length, prot, flags, fd, offset);
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fprintf(stderr,"MMAP: %x, %d, %d, %d, %d, %d -> %x\n", (unsigned int)start, length, prot, flags, fd, offset, (unsigned int)ret);
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mmapped = ret;
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mmapplen = length;
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return ret;
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}
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void *mmap64(void *start, size_t length, int prot, int flags, int fd, off64_t offset)
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{
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static void* (*func) (void *, size_t, int, int, int, off64_t) = NULL;
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void *ret;
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if (!func)
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func = (void* (*) (void *, size_t, int, int, int, off64_t)) dlsym (REAL_LIBC, "mmap64");
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ret = (*func) (start, length, prot, flags, fd, offset);
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fprintf(stderr,"MMAP64: %x, %d, %d, %d, %d, %lld -> %x\n", (unsigned int)start, length, prot, flags, fd, offset, (unsigned int)ret);
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mmapped = ret;
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mmapplen = length;
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return ret;
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}
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void *mmap2(void *start, size_t length, int prot, int flags, int fd, off_t pgoffset)
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{
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static void* (*func) (void *, size_t, int, int, int, off_t) = NULL;
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void *ret;
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if (!func)
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func = (void* (*) (void *, size_t, int, int, int, off_t)) dlsym (REAL_LIBC, "mmap2");
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ret = (*func) (start, length, prot, flags, fd, pgoffset);
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fprintf(stderr,"MMAP2: %x, %d, %d, %d, %d, %d -> %x\n", (unsigned int)start, length, prot, flags, fd, pgoffset, (unsigned int)ret);
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mmapped = ret;
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mmapplen = length;
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return ret;
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}
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void *malloc(size_t size)
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{
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static void* (*func) (size_t) = NULL;
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void *ret;
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if (!func)
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func = (void* (*) (size_t)) dlsym(REAL_LIBC, "malloc");
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ret = (*func) (size);
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//fprintf(stderr,"MALLOC: %d -> %x\n", size, (unsigned int) ret);
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return ret;
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}
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#endif
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#endif
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