impact finds the device!
[usb-driver] / 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 <usb.h>
22 #include "xilinx.h"
23
24 static int (*ioctl_func) (int, int, void *) = NULL;
25 static int windrvrfd = 0;
26 static struct usb_bus *busses = NULL;
27 static struct usb_device *usb_cable;
28 static unsigned long card_type;
29
30 #define USE_LIBUSB 1
31
32 void hexdump(unsigned char *buf, int len);
33 void diff(unsigned char *buf1, unsigned char *buf2, int len);
34
35 int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
36 struct header_struct* wdheader = (struct header_struct*)wdioctl;
37 struct version_struct *version;
38 int ret = 0;
39
40 if (wdheader->magic != MAGIC) {
41 fprintf(stderr,"!!!ERROR: magic header does not match!!!\n");
42 return (*ioctl_func) (fd, request, wdioctl);
43 }
44
45 switch(request) {
46 case VERSION:
47 version = (struct version_struct*)(wdheader->data);
48 strcpy(version->version, "WinDriver no more");
49 version->versionul = 999;
50 fprintf(stderr,"faking VERSION\n");
51 break;
52
53 case LICENSE:
54 fprintf(stderr,"faking LICENSE\n");
55 break;
56
57 case CARD_REGISTER:
58 {
59 //struct card_register* cr = (struct card_register*)(wdheader->data);
60 /* Todo: LPT-Port already in use */
61 }
62 fprintf(stderr,"faking CARD_REGISTER\n");
63 break;
64
65 case USB_TRANSFER:
66 fprintf(stderr,"in USB_TRANSFER");
67 {
68 struct usb_transfer *ut = (struct usb_transfer*)(wdheader->data);
69
70 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);
71 fprintf(stderr,"setup packet: ");
72 hexdump(ut->SetupPacket, 8);
73 fprintf(stderr,"\n");
74 if (!ut->fRead && ut->dwBufferSize)
75 {
76 hexdump(ut->pBuffer, ut->dwBufferSize);
77 fprintf(stderr,"\n");
78 }
79
80 #ifndef USE_LIBUSB
81 ret = (*ioctl_func) (fd, request, wdioctl);
82 #endif
83
84 fprintf(stderr,"Transferred: %lu (%s)\n",ut->dwBytesTransferred, (ut->fRead?"read":"write"));
85 if (ut->fRead && ut->dwBytesTransferred)
86 {
87 fprintf(stderr,"Read: ");
88 hexdump(ut->pBuffer, ut->dwBytesTransferred);
89 }
90 fprintf(stderr,"\n");
91 }
92 break;
93
94 case INT_ENABLE:
95 fprintf(stderr,"faking INT_ENABLE");
96 {
97 struct interrupt *it = (struct interrupt*)(wdheader->data);
98
99 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);
100
101 it->fEnableOk = 1;
102 //ret = (*ioctl_func) (fd, request, wdioctl);
103 }
104
105 break;
106
107 case INT_DISABLE:
108 fprintf(stderr,"INT_DISABLE\n");
109 {
110 struct interrupt *it = (struct interrupt*)(wdheader->data);
111
112 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);
113 //it->dwCounter = 0;
114 //it->fStopped = 1;
115 #ifndef USE_LIBUSB
116 ret = (*ioctl_func) (fd, request, wdioctl);
117 #endif
118 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);
119 }
120 break;
121
122 case USB_SET_INTERFACE:
123 fprintf(stderr,"USB_SET_INTERFACE\n");
124 {
125 struct usb_set_interface *usi = (struct usb_set_interface*)(wdheader->data);
126
127 fprintf(stderr,"unique: %lu, interfacenum: %lu, alternatesetting: %lu, options: %lx\n", usi->dwUniqueID, usi->dwInterfaceNum, usi->dwAlternateSetting, usi->dwOptions);
128 #ifndef USE_LIBUSB
129 ret = (*ioctl_func) (fd, request, wdioctl);
130 #endif
131 }
132 break;
133
134 case USB_GET_DEVICE_DATA:
135 fprintf(stderr,"USB_GET_DEVICE_DATA\n");
136 {
137 struct usb_get_device_data *ugdd = (struct usb_get_device_data*)(wdheader->data);
138 int pSize;
139
140 fprintf(stderr, "uniqe: %lu, bytes: %lu, options: %lx\n", ugdd->dwUniqueID, ugdd->dwBytes, ugdd->dwOptions);
141 pSize = ugdd->dwBytes;
142 #ifndef USE_LIBUSB
143 ret = (*ioctl_func) (fd, request, wdioctl);
144 #endif
145 if (pSize) {
146 hexdump(ugdd->pBuf, pSize);
147 fprintf(stderr, "\n");
148 }
149 }
150 break;
151
152 case EVENT_REGISTER:
153 fprintf(stderr,"EVENT_REGISTER\n");
154 {
155 struct event *e = (struct event*)(wdheader->data);
156 struct usb_bus *bus;
157 int i;
158
159 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);
160 for (i = 0; i < e->dwNumMatchTables; i++) {
161 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);
162
163 for (bus = busses; bus; bus = bus->next) {
164 struct usb_device *dev;
165
166 for (dev = bus->devices; dev; dev = dev->next) {
167 struct usb_device_descriptor *desc = &(dev->descriptor);
168
169 if((desc->idVendor == e->matchTables[i].VendorId) &&
170 (desc->idProduct == e->matchTables[i].ProductId) &&
171 (desc->bDeviceClass == e->matchTables[i].bDeviceClass) &&
172 (desc->bDeviceSubClass == e->matchTables[i].bDeviceSubClass)) {
173 struct usb_interface *interface = dev->config->interface;
174 int ai;
175
176 for (ai = 0; ai < interface->num_altsetting; ai++) {
177 fprintf(stderr, "intclass: %x, intsubclass: %x, intproto: %x\n", interface->altsetting[i].bInterfaceClass, interface->altsetting[i].bInterfaceSubClass, interface->altsetting[i].bInterfaceProtocol);
178 if ((interface->altsetting[i].bInterfaceSubClass == e->matchTables[i].bInterfaceSubClass) &&
179 (interface->altsetting[i].bInterfaceProtocol == e->matchTables[i].bInterfaceProtocol)){
180 /* TODO: check interfaceClass! */
181 fprintf(stderr,"!!!FOUND DEVICE WITH LIBUSB!!!\n");
182 usb_cable = dev;
183 card_type = e->dwCardType;
184 }
185 }
186 }
187 }
188 }
189 }
190
191 #ifndef USE_LIBUSB
192 ret = (*ioctl_func) (fd, request, wdioctl);
193 #endif
194
195 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);
196 for (i = 0; i < e->dwNumMatchTables; i++)
197 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);
198 }
199 break;
200
201 case TRANSFER:
202 fprintf(stderr,"TRANSFER\n");
203 #ifndef USE_LIBUSB
204 ret = (*ioctl_func) (fd, request, wdioctl);
205 #endif
206 break;
207
208 case EVENT_UNREGISTER:
209 fprintf(stderr,"EVENT_UNREGISTER\n");
210 #ifndef USE_LIBUSB
211 ret = (*ioctl_func) (fd, request, wdioctl);
212 #endif
213 break;
214
215 case INT_WAIT:
216 fprintf(stderr,"INT_WAIT\n");
217 {
218 struct interrupt *it = (struct interrupt*)(wdheader->data);
219
220 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);
221
222 #ifndef USE_LIBUSB
223 ret = (*ioctl_func) (fd, request, wdioctl);
224 #else
225 if (usb_cable)
226 it->dwCounter++;
227 #endif
228
229 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);
230 }
231 break;
232
233 case CARD_UNREGISTER:
234 fprintf(stderr,"CARD_UNREGISTER\n");
235 #ifndef USE_LIBUSB
236 ret = (*ioctl_func) (fd, request, wdioctl);
237 #endif
238 break;
239
240 case EVENT_PULL:
241 fprintf(stderr,"EVENT_PULL\n");
242 {
243 struct event *e = (struct event*)(wdheader->data);
244 int i;
245
246 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);
247 for (i = 0; i < e->dwNumMatchTables; i++)
248 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);
249
250 #ifndef USE_LIBUSB
251 ret = (*ioctl_func) (fd, request, wdioctl);
252 #else
253 //EVENT_PULL
254 //handle: 1, action: 0, status: 0, eventid: 0, cardtype: 0, kplug: 0, options: 0, dev: 0:0, unique: 0, ver: 1, nummatch: 1
255 //match: dev: 0:0, class: 0, subclass: 0, intclass: 0, intsubclass: 0, intproto: 0
256 //handle: 1, action: 1, status: 0, eventid: 109, cardtype: 4294967294, kplug: 0, options: 0, dev: 0:0, unique: 90, ver: 1, nummatch: 1
257 //match: dev: 3fd:8, class: 0, subclass: 0, intclass: ff, intsubclass: 0, intproto: 0
258 if (usb_cable) {
259 struct usb_interface *interface = usb_cable->config->interface;
260
261 e->dwCardType = card_type;
262 e->dwAction = 1;
263 e->dwEventId = 109;
264 e->u.Usb.dwUniqueID = 4711;
265 e->matchTables[0].VendorId = usb_cable->descriptor.idVendor;
266 e->matchTables[0].ProductId = usb_cable->descriptor.idProduct;
267 e->matchTables[0].bDeviceClass = usb_cable->descriptor.bDeviceClass;
268 e->matchTables[0].bDeviceSubClass = usb_cable->descriptor.bDeviceSubClass;
269 e->matchTables[0].bInterfaceClass = interface->altsetting[0].bInterfaceClass;
270 e->matchTables[0].bInterfaceSubClass = interface->altsetting[0].bInterfaceSubClass;
271 e->matchTables[0].bInterfaceProtocol = interface->altsetting[0].bInterfaceProtocol;
272 }
273 #endif
274
275 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);
276 for (i = 0; i < e->dwNumMatchTables; i++)
277 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);
278 }
279 break;
280
281 default:
282 fprintf(stderr,"!!!Unsupported IOCTL: %x!!!\n", request);
283 #ifndef USE_LIBUSB
284 ret = (*ioctl_func) (fd, request, wdioctl);
285 #endif
286 break;
287 }
288
289 return ret;
290 }
291
292
293 typedef int (*open_funcptr_t) (const char *, int, mode_t);
294
295 int open (const char *pathname, int flags, ...)
296 {
297 static open_funcptr_t func = NULL;
298 mode_t mode = 0;
299 va_list args;
300 int fd;
301
302 if (!func)
303 func = (open_funcptr_t) dlsym (REAL_LIBC, "open");
304
305 if (flags & O_CREAT) {
306 va_start(args, flags);
307 mode = va_arg(args, mode_t);
308 va_end(args);
309 }
310
311 fd = (*func) (pathname, flags, mode);
312
313 if (!strcmp (pathname, "/dev/windrvr6")) {
314 fprintf(stderr,"opening windrvr6\n");
315 windrvrfd = fd;
316 if (!busses) {
317 usb_init();
318 usb_find_busses();
319 usb_find_devices();
320
321 busses = usb_get_busses();
322 }
323 }
324
325 return fd;
326 }
327
328 void diff(unsigned char *buf1, unsigned char *buf2, int len) {
329 int i;
330
331 for(i=0; i<len; i++) {
332 if (buf1[i] != buf2[i]) {
333 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]:'.'));
334 }
335 }
336 }
337
338 void hexdump(unsigned char *buf, int len) {
339 int i;
340
341 for(i=0; i<len; i++) {
342 fprintf(stderr,"%02x ", buf[i]);
343 if ((i % 16) == 15)
344 fprintf(stderr,"\n");
345 }
346 }
347
348 int ioctl(int fd, int request, ...)
349 {
350 va_list args;
351 void *argp;
352 int ret;
353
354 if (!ioctl_func)
355 ioctl_func = (int (*) (int, int, void *)) dlsym (REAL_LIBC, "ioctl");
356
357 va_start (args, request);
358 argp = va_arg (args, void *);
359 va_end (args);
360
361 if (fd == windrvrfd)
362 ret = do_wdioctl(fd, request, argp);
363 else
364 ret = (*ioctl_func) (fd, request, argp);
365
366 return ret;
367 }
368
369 #if 0
370 void *mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset)
371 {
372 static void* (*func) (void *, size_t, int, int, int, off_t) = NULL;
373 void *ret;
374
375 if (!func)
376 func = (void* (*) (void *, size_t, int, int, int, off_t)) dlsym (REAL_LIBC, "mmap");
377
378 ret = (*func) (start, length, prot, flags, fd, offset);
379 fprintf(stderr,"MMAP: %x, %d, %d, %d, %d, %d -> %x\n", (unsigned int)start, length, prot, flags, fd, offset, (unsigned int)ret);
380 mmapped = ret;
381 mmapplen = length;
382
383 return ret;
384 }
385
386 void *mmap64(void *start, size_t length, int prot, int flags, int fd, off64_t offset)
387 {
388 static void* (*func) (void *, size_t, int, int, int, off64_t) = NULL;
389 void *ret;
390
391 if (!func)
392 func = (void* (*) (void *, size_t, int, int, int, off64_t)) dlsym (REAL_LIBC, "mmap64");
393
394 ret = (*func) (start, length, prot, flags, fd, offset);
395 fprintf(stderr,"MMAP64: %x, %d, %d, %d, %d, %lld -> %x\n", (unsigned int)start, length, prot, flags, fd, offset, (unsigned int)ret);
396 mmapped = ret;
397 mmapplen = length;
398
399 return ret;
400 }
401
402 void *mmap2(void *start, size_t length, int prot, int flags, int fd, off_t pgoffset)
403 {
404 static void* (*func) (void *, size_t, int, int, int, off_t) = NULL;
405 void *ret;
406
407 if (!func)
408 func = (void* (*) (void *, size_t, int, int, int, off_t)) dlsym (REAL_LIBC, "mmap2");
409
410 ret = (*func) (start, length, prot, flags, fd, pgoffset);
411 fprintf(stderr,"MMAP2: %x, %d, %d, %d, %d, %d -> %x\n", (unsigned int)start, length, prot, flags, fd, pgoffset, (unsigned int)ret);
412 mmapped = ret;
413 mmapplen = length;
414
415 return ret;
416 }
417
418 void *malloc(size_t size)
419 {
420 static void* (*func) (size_t) = NULL;
421 void *ret;
422
423 if (!func)
424 func = (void* (*) (size_t)) dlsym(REAL_LIBC, "malloc");
425
426 ret = (*func) (size);
427
428 //fprintf(stderr,"MALLOC: %d -> %x\n", size, (unsigned int) ret);
429
430 return ret;
431 }
432 #endif
433
434
435 #endif
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