cvs.zerfleddert.de Git - usb-driver/blob - usb-driver.c

   1 #if defined(__GNUC__) && !defined(__STRICT_ANSI__)
   2
   3 #define _GNU_SOURCE 1
   4
   5 #if defined(RTLD_NEXT)
   6 #define REAL_LIBC RTLD_NEXT
   7 #else
   8 #define REAL_LIBC ((void *) -1L)
   9 #endif
  10
  11 #include <dlfcn.h>
  12 #include <stdarg.h>
  13 #include <stdlib.h>
  14 #include <string.h>
  15 #include <unistd.h>
  16 #include <fcntl.h>
  17 #include <sys/types.h>
  18 #include <sys/stat.h>
  19 #include <sys/time.h>
  20 #include <stdio.h>
  21 #include "xilinx.h"
  22
  23 static int (*ioctl_func) (int, int, void *) = NULL;
  24 static int windrvrfd = 0;
  25
  26 void hexdump(unsigned char *buf, int len);
  27 void diff(unsigned char *buf1, unsigned char *buf2, int len);
  28
  29 int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
  30         struct header_struct* wdheader = (struct header_struct*)wdioctl;
  31         struct version_struct *version;
  32         int ret = 0;
  33
  34         if (wdheader->magic != MAGIC) {
  35                 fprintf(stderr,"!!!ERROR: magic header does not match!!!\n");
  36                 return (*ioctl_func) (fd, request, wdioctl);
  37         }
  38
  39         switch(request) {
  40                 case VERSION:
  41                         version = (struct version_struct*)(wdheader->data);
  42                         strcpy(version->version, "WinDriver no more");
  43                         version->versionul = 999;
  44                         fprintf(stderr,"faking VERSION\n");
  45                         break;
  46
  47                 case LICENSE:
  48                         fprintf(stderr,"faking LICENSE\n");
  49                         break;
  50
  51                 case CARD_REGISTER:
  52                         {
  53                                 //struct card_register* cr = (struct card_register*)(wdheader->data);
  54                                 /* Todo: LPT-Port already in use */
  55                         }
  56                         fprintf(stderr,"faking CARD_REGISTER\n");
  57                         break;
  58
  59                 case USB_TRANSFER:
  60                         fprintf(stderr,"in USB_TRANSFER");
  61                         {
  62                                 struct usb_transfer *ut = (struct usb_transfer*)(wdheader->data);
  63
  64                                 fprintf(stderr," unique: %lu, pipe: %lu, read: %lu, options: %lx, size: %lu, timeout: %lx\n", ut->dwUniqueID, ut->dwPipeNum, ut->fRead, ut->dwOptions, ut->dwBufferSize, ut->dwTimeout);
  65                                 fprintf(stderr,"setup packet: ");
  66                                 hexdump(ut->SetupPacket, 8);
  67                                 fprintf(stderr,"\n");
  68                                 if (!ut->fRead && ut->dwBufferSize)
  69                                 {
  70                                         hexdump(ut->pBuffer, ut->dwBufferSize);
  71                                         fprintf(stderr,"\n");
  72                                 }
  73
  74                                 ret = (*ioctl_func) (fd, request, wdioctl);
  75
  76                                 fprintf(stderr,"Transferred: %lu (%s)\n",ut->dwBytesTransferred, (ut->fRead?"read":"write"));
  77                                 if (ut->fRead && ut->dwBytesTransferred)
  78                                 {
  79                                         fprintf(stderr,"Read: ");
  80                                         hexdump(ut->pBuffer, ut->dwBytesTransferred);
  81                                 }
  82                                 fprintf(stderr,"\n");
  83                         }
  84                         break;
  85
  86                 case INT_ENABLE:
  87                         fprintf(stderr,"faking INT_ENABLE");
  88                         {
  89                                 struct interrupt *it = (struct interrupt*)(wdheader->data);
  90
  91                                 fprintf(stderr," Handle: %lu, Options: %lx, ncmds: %lu\n", it->hInterrupt, it->dwOptions, it->dwCmds);
  92
  93                                 it->fEnableOk = 1;
  94                                 //ret = (*ioctl_func) (fd, request, wdioctl);
  95                         }
  96
  97                         break;
  98
  99                 case INT_DISABLE:
 100                         fprintf(stderr,"INT_DISABLE\n");
 101                         {
 102                                 struct interrupt *it = (struct interrupt*)(wdheader->data);
 103
 104                                 fprintf(stderr," Handle: %lu, Options: %lx, ncmds: %lu\n", it->hInterrupt, it->dwOptions, it->dwCmds);
 105
 106                                 hexdump(wdheader->data, wdheader->size);
 107                                 //it->dwCounter = 0;
 108                                 //it->fStopped = 1;
 109                                 ret = (*ioctl_func) (fd, request, wdioctl);
 110                                 fprintf(stderr,"\n\n");
 111                                 hexdump(wdheader->data, wdheader->size);
 112                                 fprintf(stderr,"\n");
 113                         }
 114                         break;
 115
 116                 case USB_SET_INTERFACE:
 117                         fprintf(stderr,"USB_SET_INTERFACE\n");
 118                         {
 119                                 struct usb_set_interface *usi = (struct usb_set_interface*)(wdheader->data);
 120
 121                                 fprintf(stderr,"unique: %lu, interfacenum: %lu, alternatesetting: %lu, options: %lx\n", usi->dwUniqueID, usi->dwInterfaceNum, usi->dwAlternateSetting, usi->dwOptions);
 122                                 ret = (*ioctl_func) (fd, request, wdioctl);
 123                         }
 124                         break;
 125
 126                 case USB_GET_DEVICE_DATA:
 127                         fprintf(stderr,"USB_GET_DEVICE_DATA\n");
 128                         {
 129                                 struct usb_get_device_data *ugdd = (struct usb_get_device_data*)(wdheader->data);
 130                                 int pSize;
 131
 132                                 fprintf(stderr, "uniqe: %lu, bytes: %lu, options: %lx\n", ugdd->dwUniqueID, ugdd->dwBytes, ugdd->dwOptions);
 133                                 pSize = ugdd->dwBytes;
 134                                 ret = (*ioctl_func) (fd, request, wdioctl);
 135                                 if (pSize) {
 136                                         hexdump(ugdd->pBuf, pSize);
 137                                         fprintf(stderr, "\n");
 138                                 }
 139                         }
 140                         break;
 141
 142                 case EVENT_REGISTER:
 143                         fprintf(stderr,"EVENT_REGISTER\n");
 144                         {
 145                                 struct event *e = (struct event*)(wdheader->data);
 146                                 int i;
 147
 148                                 fprintf(stderr,"handle: %lu, action: %lu, status: %lu, eventid: %lu, cardtype: %lu, kplug: %lu, options: %lu, dev: %lx:%lx, unique: %lu, ver: %lu, nummatch: %lu\n", e->handle, e->dwAction, e->dwStatus, e->dwEventId, e->dwCardType, e->hKernelPlugIn, e->dwOptions, e->u.Usb.deviceId.dwVendorId, e->u.Usb.deviceId.dwProductId, e->u.Usb.dwUniqueID, e->dwEventVer, e->dwNumMatchTables);
 149                                 for (i = 0; i < e->dwNumMatchTables; i++)
 150                                         fprintf(stderr,"match: dev: %x:%x, class: %x, subclass: %x, intclass: %x, intsubclass: %x, intproto: %x\n", e->matchTables[i].VendorId, e->matchTables[i].ProductId, e->matchTables[i].bDeviceClass, e->matchTables[i].bDeviceSubClass, e->matchTables[i].bInterfaceClass, e->matchTables[i].bInterfaceSubClass, e->matchTables[i].bInterfaceProtocol);
 151
 152                                 ret = (*ioctl_func) (fd, request, wdioctl);
 153
 154                                 fprintf(stderr,"handle: %lu, action: %lu, status: %lu, eventid: %lu, cardtype: %lu, kplug: %lu, options: %lu, dev: %lx:%lx, unique: %lu, ver: %lu, nummatch: %lu\n", e->handle, e->dwAction, e->dwStatus, e->dwEventId, e->dwCardType, e->hKernelPlugIn, e->dwOptions, e->u.Usb.deviceId.dwVendorId, e->u.Usb.deviceId.dwProductId, e->u.Usb.dwUniqueID, e->dwEventVer, e->dwNumMatchTables);
 155                                 for (i = 0; i < e->dwNumMatchTables; i++)
 156                                         fprintf(stderr,"match: dev: %x:%x, class: %x, subclass: %x, intclass: %x, intsubclass: %x, intproto: %x\n", e->matchTables[i].VendorId, e->matchTables[i].ProductId, e->matchTables[i].bDeviceClass, e->matchTables[i].bDeviceSubClass, e->matchTables[i].bInterfaceClass, e->matchTables[i].bInterfaceSubClass, e->matchTables[i].bInterfaceProtocol);
 157                         }
 158                         break;
 159
 160                 case TRANSFER:
 161                         fprintf(stderr,"TRANSFER\n");
 162                         ret = (*ioctl_func) (fd, request, wdioctl);
 163                         break;
 164
 165                 case EVENT_UNREGISTER:
 166                         fprintf(stderr,"EVENT_UNREGISTER\n");
 167                         ret = (*ioctl_func) (fd, request, wdioctl);
 168                         break;
 169
 170                 case INT_WAIT:
 171                         fprintf(stderr,"INT_WAIT\n");
 172                         {
 173                                 struct interrupt *it = (struct interrupt*)(wdheader->data);
 174
 175                                 fprintf(stderr," Handle: %lu, Options: %lx, ncmds: %lu\n", it->hInterrupt, it->dwOptions, it->dwCmds);
 176
 177                                 hexdump(wdheader->data, wdheader->size);
 178                                 ret = (*ioctl_func) (fd, request, wdioctl);
 179                                 //ret = 0;
 180                                 //it->dwCounter++;
 181                                 fprintf(stderr,"\n\n");
 182                                 hexdump(wdheader->data, wdheader->size);
 183                                 fprintf(stderr,"\n");
 184                         }
 185                         break;
 186
 187                 case CARD_UNREGISTER:
 188                         fprintf(stderr,"CARD_UNREGISTER\n");
 189                         ret = (*ioctl_func) (fd, request, wdioctl);
 190                         break;
 191
 192                 case EVENT_PULL:
 193                         fprintf(stderr,"EVENT_PULL\n");
 194                         ret = (*ioctl_func) (fd, request, wdioctl);
 195                         break;
 196
 197                 default:
 198                         ret = (*ioctl_func) (fd, request, wdioctl);
 199         }
 200
 201         return ret;
 202 }
 203
 204
 205 typedef int (*open_funcptr_t) (const char *, int, mode_t);
 206
 207 int open (const char *pathname, int flags, ...)
 208 {
 209         static open_funcptr_t func = NULL;
 210         mode_t mode = 0;
 211         va_list args;
 212         int fd;
 213
 214         if (!func)
 215                 func = (open_funcptr_t) dlsym (REAL_LIBC, "open");
 216
 217         if (flags & O_CREAT) {
 218                 va_start(args, flags);
 219                 mode = va_arg(args, mode_t);
 220                 va_end(args);
 221         }
 222
 223         fd = (*func) (pathname, flags, mode);
 224
 225         if (!strcmp (pathname, "/dev/windrvr6")) {
 226                 fprintf(stderr,"opening windrvr6\n");
 227                 windrvrfd = fd;
 228         }
 229
 230         return fd;
 231 }
 232
 233 void diff(unsigned char *buf1, unsigned char *buf2, int len) {
 234         int i;
 235
 236         for(i=0; i<len; i++) {
 237                 if (buf1[i] != buf2[i]) {
 238                         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]:'.'));
 239                 }
 240         }
 241 }
 242
 243 void hexdump(unsigned char *buf, int len) {
 244         int i;
 245
 246         for(i=0; i<len; i++) {
 247                 fprintf(stderr,"%02x ", buf[i]);
 248                 if ((i % 16) == 15)
 249                         fprintf(stderr,"\n");
 250         }
 251 }
 252
 253 int ioctl(int fd, int request, ...)
 254 {
 255         va_list args;
 256         void *argp;
 257         int ret;
 258
 259         if (!ioctl_func)
 260                 ioctl_func = (int (*) (int, int, void *)) dlsym (REAL_LIBC, "ioctl");
 261
 262         va_start (args, request);
 263         argp = va_arg (args, void *);
 264         va_end (args);
 265
 266         if (fd == windrvrfd)
 267                 ret = do_wdioctl(fd, request, argp);
 268         else
 269                 ret = (*ioctl_func) (fd, request, argp);
 270
 271         return ret;
 272 }
 273
 274 #if 0
 275 void *mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset)
 276 {
 277         static void* (*func) (void *, size_t, int, int, int, off_t) = NULL;
 278         void *ret;
 279
 280         if (!func)
 281                 func = (void* (*) (void *, size_t, int, int, int, off_t)) dlsym (REAL_LIBC, "mmap");
 282
 283         ret = (*func) (start, length, prot, flags, fd, offset);
 284         fprintf(stderr,"MMAP: %x, %d, %d, %d, %d, %d -> %x\n", (unsigned int)start, length, prot, flags, fd, offset, (unsigned int)ret);
 285         mmapped = ret;
 286         mmapplen = length;
 287
 288         return ret;
 289 }
 290
 291 void *mmap64(void *start, size_t length, int prot, int flags, int fd, off64_t offset)
 292 {
 293         static void* (*func) (void *, size_t, int, int, int, off64_t) = NULL;
 294         void *ret;
 295
 296         if (!func)
 297                 func = (void* (*) (void *, size_t, int, int, int, off64_t)) dlsym (REAL_LIBC, "mmap64");
 298
 299         ret = (*func) (start, length, prot, flags, fd, offset);
 300         fprintf(stderr,"MMAP64: %x, %d, %d, %d, %d, %lld -> %x\n", (unsigned int)start, length, prot, flags, fd, offset, (unsigned int)ret);
 301         mmapped = ret;
 302         mmapplen = length;
 303
 304         return ret;
 305 }
 306
 307 void *mmap2(void *start, size_t length, int prot, int flags, int fd, off_t pgoffset)
 308 {
 309         static void* (*func) (void *, size_t, int, int, int, off_t) = NULL;
 310         void *ret;
 311
 312         if (!func)
 313                 func = (void* (*) (void *, size_t, int, int, int, off_t)) dlsym (REAL_LIBC, "mmap2");
 314
 315         ret = (*func) (start, length, prot, flags, fd, pgoffset);
 316         fprintf(stderr,"MMAP2: %x, %d, %d, %d, %d, %d -> %x\n", (unsigned int)start, length, prot, flags, fd, pgoffset, (unsigned int)ret);
 317         mmapped = ret;
 318         mmapplen = length;
 319
 320         return ret;
 321 }
 322
 323 void *malloc(size_t size)
 324 {
 325         static void* (*func) (size_t) = NULL;
 326         void *ret;
 327
 328         if (!func)
 329                 func = (void* (*) (size_t)) dlsym(REAL_LIBC, "malloc");
 330
 331         ret = (*func) (size);
 332
 333         //fprintf(stderr,"MALLOC: %d -> %x\n", size, (unsigned int) ret);
 334
 335         return ret;
 336 }
 337 #endif
 338
 339
 340 #endif