git.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, enableok: %lu, count: %lu, lost: %lu, stopped: %lu\n", it->hInterrupt, it->dwOptions, it->dwCmds, it->fEnableOk, it->dwCounter, it->dwLost, it->fStopped);
  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, enableok: %lu, count: %lu, lost: %lu, stopped: %lu\n", it->hInterrupt, it->dwOptions, it->dwCmds, it->fEnableOk, it->dwCounter, it->dwLost, it->fStopped);
 105                                 //it->dwCounter = 0;
 106                                 //it->fStopped = 1;
 107                                 ret = (*ioctl_func) (fd, request, wdioctl);
 108                                 fprintf(stderr,"Handle: %lu, Options: %lx, ncmds: %lu, enableok: %lu, count: %lu, lost: %lu, stopped: %lu\n", it->hInterrupt, it->dwOptions, it->dwCmds, it->fEnableOk, it->dwCounter, it->dwLost, it->fStopped);
 109                         }
 110                         break;
 111
 112                 case USB_SET_INTERFACE:
 113                         fprintf(stderr,"USB_SET_INTERFACE\n");
 114                         {
 115                                 struct usb_set_interface *usi = (struct usb_set_interface*)(wdheader->data);
 116
 117                                 fprintf(stderr,"unique: %lu, interfacenum: %lu, alternatesetting: %lu, options: %lx\n", usi->dwUniqueID, usi->dwInterfaceNum, usi->dwAlternateSetting, usi->dwOptions);
 118                                 ret = (*ioctl_func) (fd, request, wdioctl);
 119                         }
 120                         break;
 121
 122                 case USB_GET_DEVICE_DATA:
 123                         fprintf(stderr,"USB_GET_DEVICE_DATA\n");
 124                         {
 125                                 struct usb_get_device_data *ugdd = (struct usb_get_device_data*)(wdheader->data);
 126                                 int pSize;
 127
 128                                 fprintf(stderr, "uniqe: %lu, bytes: %lu, options: %lx\n", ugdd->dwUniqueID, ugdd->dwBytes, ugdd->dwOptions);
 129                                 pSize = ugdd->dwBytes;
 130                                 ret = (*ioctl_func) (fd, request, wdioctl);
 131                                 if (pSize) {
 132                                         hexdump(ugdd->pBuf, pSize);
 133                                         fprintf(stderr, "\n");
 134                                 }
 135                         }
 136                         break;
 137
 138                 case EVENT_REGISTER:
 139                         fprintf(stderr,"EVENT_REGISTER\n");
 140                         {
 141                                 struct event *e = (struct event*)(wdheader->data);
 142                                 int i;
 143
 144                                 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);
 145                                 for (i = 0; i < e->dwNumMatchTables; i++)
 146                                         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);
 147
 148                                 ret = (*ioctl_func) (fd, request, wdioctl);
 149
 150                                 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);
 151                                 for (i = 0; i < e->dwNumMatchTables; i++)
 152                                         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);
 153                         }
 154                         break;
 155
 156                 case TRANSFER:
 157                         fprintf(stderr,"TRANSFER\n");
 158                         ret = (*ioctl_func) (fd, request, wdioctl);
 159                         break;
 160
 161                 case EVENT_UNREGISTER:
 162                         fprintf(stderr,"EVENT_UNREGISTER\n");
 163                         ret = (*ioctl_func) (fd, request, wdioctl);
 164                         break;
 165
 166                 case INT_WAIT:
 167                         fprintf(stderr,"INT_WAIT\n");
 168                         {
 169                                 struct interrupt *it = (struct interrupt*)(wdheader->data);
 170
 171                                 fprintf(stderr,"Handle: %lu, Options: %lx, ncmds: %lu, enableok: %lu, count: %lu, lost: %lu, stopped: %lu\n", it->hInterrupt, it->dwOptions, it->dwCmds, it->fEnableOk, it->dwCounter, it->dwLost, it->fStopped);
 172
 173                                 ret = (*ioctl_func) (fd, request, wdioctl);
 174                                 fprintf(stderr,"Handle: %lu, Options: %lx, ncmds: %lu, enableok: %lu, count: %lu, lost: %lu, stopped: %lu\n", it->hInterrupt, it->dwOptions, it->dwCmds, it->fEnableOk, it->dwCounter, it->dwLost, it->fStopped);
 175                         }
 176                         break;
 177
 178                 case CARD_UNREGISTER:
 179                         fprintf(stderr,"CARD_UNREGISTER\n");
 180                         ret = (*ioctl_func) (fd, request, wdioctl);
 181                         break;
 182
 183                 case EVENT_PULL:
 184                         fprintf(stderr,"EVENT_PULL\n");
 185                         ret = (*ioctl_func) (fd, request, wdioctl);
 186                         break;
 187
 188                 default:
 189                         ret = (*ioctl_func) (fd, request, wdioctl);
 190         }
 191
 192         return ret;
 193 }
 194
 195
 196 typedef int (*open_funcptr_t) (const char *, int, mode_t);
 197
 198 int open (const char *pathname, int flags, ...)
 199 {
 200         static open_funcptr_t func = NULL;
 201         mode_t mode = 0;
 202         va_list args;
 203         int fd;
 204
 205         if (!func)
 206                 func = (open_funcptr_t) dlsym (REAL_LIBC, "open");
 207
 208         if (flags & O_CREAT) {
 209                 va_start(args, flags);
 210                 mode = va_arg(args, mode_t);
 211                 va_end(args);
 212         }
 213
 214         fd = (*func) (pathname, flags, mode);
 215
 216         if (!strcmp (pathname, "/dev/windrvr6")) {
 217                 fprintf(stderr,"opening windrvr6\n");
 218                 windrvrfd = fd;
 219         }
 220
 221         return fd;
 222 }
 223
 224 void diff(unsigned char *buf1, unsigned char *buf2, int len) {
 225         int i;
 226
 227         for(i=0; i<len; i++) {
 228                 if (buf1[i] != buf2[i]) {
 229                         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]:'.'));
 230                 }
 231         }
 232 }
 233
 234 void hexdump(unsigned char *buf, int len) {
 235         int i;
 236
 237         for(i=0; i<len; i++) {
 238                 fprintf(stderr,"%02x ", buf[i]);
 239                 if ((i % 16) == 15)
 240                         fprintf(stderr,"\n");
 241         }
 242 }
 243
 244 int ioctl(int fd, int request, ...)
 245 {
 246         va_list args;
 247         void *argp;
 248         int ret;
 249
 250         if (!ioctl_func)
 251                 ioctl_func = (int (*) (int, int, void *)) dlsym (REAL_LIBC, "ioctl");
 252
 253         va_start (args, request);
 254         argp = va_arg (args, void *);
 255         va_end (args);
 256
 257         if (fd == windrvrfd)
 258                 ret = do_wdioctl(fd, request, argp);
 259         else
 260                 ret = (*ioctl_func) (fd, request, argp);
 261
 262         return ret;
 263 }
 264
 265 #if 0
 266 void *mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset)
 267 {
 268         static void* (*func) (void *, size_t, int, int, int, off_t) = NULL;
 269         void *ret;
 270
 271         if (!func)
 272                 func = (void* (*) (void *, size_t, int, int, int, off_t)) dlsym (REAL_LIBC, "mmap");
 273
 274         ret = (*func) (start, length, prot, flags, fd, offset);
 275         fprintf(stderr,"MMAP: %x, %d, %d, %d, %d, %d -> %x\n", (unsigned int)start, length, prot, flags, fd, offset, (unsigned int)ret);
 276         mmapped = ret;
 277         mmapplen = length;
 278
 279         return ret;
 280 }
 281
 282 void *mmap64(void *start, size_t length, int prot, int flags, int fd, off64_t offset)
 283 {
 284         static void* (*func) (void *, size_t, int, int, int, off64_t) = NULL;
 285         void *ret;
 286
 287         if (!func)
 288                 func = (void* (*) (void *, size_t, int, int, int, off64_t)) dlsym (REAL_LIBC, "mmap64");
 289
 290         ret = (*func) (start, length, prot, flags, fd, offset);
 291         fprintf(stderr,"MMAP64: %x, %d, %d, %d, %d, %lld -> %x\n", (unsigned int)start, length, prot, flags, fd, offset, (unsigned int)ret);
 292         mmapped = ret;
 293         mmapplen = length;
 294
 295         return ret;
 296 }
 297
 298 void *mmap2(void *start, size_t length, int prot, int flags, int fd, off_t pgoffset)
 299 {
 300         static void* (*func) (void *, size_t, int, int, int, off_t) = NULL;
 301         void *ret;
 302
 303         if (!func)
 304                 func = (void* (*) (void *, size_t, int, int, int, off_t)) dlsym (REAL_LIBC, "mmap2");
 305
 306         ret = (*func) (start, length, prot, flags, fd, pgoffset);
 307         fprintf(stderr,"MMAP2: %x, %d, %d, %d, %d, %d -> %x\n", (unsigned int)start, length, prot, flags, fd, pgoffset, (unsigned int)ret);
 308         mmapped = ret;
 309         mmapplen = length;
 310
 311         return ret;
 312 }
 313
 314 void *malloc(size_t size)
 315 {
 316         static void* (*func) (size_t) = NULL;
 317         void *ret;
 318
 319         if (!func)
 320                 func = (void* (*) (size_t)) dlsym(REAL_LIBC, "malloc");
 321
 322         ret = (*func) (size);
 323
 324         //fprintf(stderr,"MALLOC: %d -> %x\n", size, (unsigned int) ret);
 325
 326         return ret;
 327 }
 328 #endif
 329
 330
 331 #endif