[usb-driver] / usb-driver.c

#if defined(__GNUC__) && !defined(__STRICT_ANSI__)

#define _GNU_SOURCE 1

#if defined(RTLD_NEXT)
#define REAL_LIBC RTLD_NEXT
#else
#define REAL_LIBC ((void *) -1L)
#endif

#include <dlfcn.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <stdio.h>
#include "xilinx.h"

static int (*ioctl_func) (int, int, void *) = NULL;
static int windrvrfd = 0;

void hexdump(unsigned char *buf, int len);
void diff(unsigned char *buf1, unsigned char *buf2, int len);

int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
	struct header_struct* wdheader = (struct header_struct*)wdioctl;
	struct version_struct *version;
	int ret = 0;

	if (wdheader->magic != MAGIC) {
		fprintf(stderr,"!!!ERROR: magic header does not match!!!\n");
		return (*ioctl_func) (fd, request, wdioctl);
	}

	switch(request) {
		case VERSION:
			version = (struct version_struct*)(wdheader->data);
			strcpy(version->version, "WinDriver no more");
			version->versionul = 999;
			fprintf(stderr,"faking VERSION\n");
			break;

		case LICENSE:
			fprintf(stderr,"faking LICENSE\n");
			break;

		case CARD_REGISTER:
			{
				//struct card_register* cr = (struct card_register*)(wdheader->data);
				/* Todo: LPT-Port already in use */
			}
			fprintf(stderr,"faking CARD_REGISTER\n");
			break;

		case USB_TRANSFER:
			fprintf(stderr,"in USB_TRANSFER");
			{
				struct usb_transfer *ut = (struct usb_transfer*)(wdheader->data);

				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);
				fprintf(stderr,"setup packet: ");
				hexdump(ut->SetupPacket, 8);
				fprintf(stderr,"\n");
				if (!ut->fRead && ut->dwBufferSize)
				{
					hexdump(ut->pBuffer, ut->dwBufferSize);
					fprintf(stderr,"\n");
				}

				ret = (*ioctl_func) (fd, request, wdioctl);

				fprintf(stderr,"Transferred: %lu (%s)\n",ut->dwBytesTransferred, (ut->fRead?"read":"write"));
				if (ut->fRead && ut->dwBytesTransferred)
				{
					fprintf(stderr,"Read: ");
					hexdump(ut->pBuffer, ut->dwBytesTransferred);
				}
				fprintf(stderr,"\n");
			}
			break;

		case INT_ENABLE:
			fprintf(stderr,"faking INT_ENABLE");
			{
				struct interrupt *it = (struct interrupt*)(wdheader->data);

				fprintf(stderr," Handle: %lu, Options: %lx, ncmds: %lu\n", it->hInterrupt, it->dwOptions, it->dwCmds);

				it->fEnableOk = 1;
				//ret = (*ioctl_func) (fd, request, wdioctl);
			}

			break;
			
		case INT_DISABLE:
			fprintf(stderr,"INT_DISABLE\n");
			{
				struct interrupt *it = (struct interrupt*)(wdheader->data);

				fprintf(stderr," Handle: %lu, Options: %lx, ncmds: %lu\n", it->hInterrupt, it->dwOptions, it->dwCmds);

				hexdump(wdheader->data, wdheader->size);
				//it->dwCounter = 0;
				//it->fStopped = 1;
				ret = (*ioctl_func) (fd, request, wdioctl);
				fprintf(stderr,"\n\n");
				hexdump(wdheader->data, wdheader->size);
				fprintf(stderr,"\n");
			}
			break;

		case USB_SET_INTERFACE:
			fprintf(stderr,"USB_SET_INTERFACE\n");
			{
				struct usb_set_interface *usi = (struct usb_set_interface*)(wdheader->data);

				fprintf(stderr,"unique: %lu, interfacenum: %lu, alternatesetting: %lu, options: %lx\n", usi->dwUniqueID, usi->dwInterfaceNum, usi->dwAlternateSetting, usi->dwOptions);
				ret = (*ioctl_func) (fd, request, wdioctl);
			}
			break;

		case USB_GET_DEVICE_DATA:
			fprintf(stderr,"USB_GET_DEVICE_DATA\n");
			{
				struct usb_get_device_data *ugdd = (struct usb_get_device_data*)(wdheader->data);
				int pSize;

				fprintf(stderr, "uniqe: %lu, bytes: %lu, options: %lx\n", ugdd->dwUniqueID, ugdd->dwBytes, ugdd->dwOptions);
				pSize = ugdd->dwBytes;
				ret = (*ioctl_func) (fd, request, wdioctl);
				if (pSize) {
					hexdump(ugdd->pBuf, pSize);
					fprintf(stderr, "\n");
				}
			}
			break;

		case TRANSFER:
			fprintf(stderr,"TRANSFER\n");
			ret = (*ioctl_func) (fd, request, wdioctl);
			break;

		case EVENT_UNREGISTER:
			fprintf(stderr,"EVENT_UNREGISTER\n");
			ret = (*ioctl_func) (fd, request, wdioctl);
			break;

		case INT_WAIT:
			fprintf(stderr,"INT_WAIT\n");
			ret = (*ioctl_func) (fd, request, wdioctl);
			break;

		case CARD_UNREGISTER:
			fprintf(stderr,"CARD_UNREGISTER\n");
			ret = (*ioctl_func) (fd, request, wdioctl);
			break;

		case EVENT_PULL:
			fprintf(stderr,"EVENT_PULL\n");
			ret = (*ioctl_func) (fd, request, wdioctl);
			break;

		case EVENT_REGISTER:
			fprintf(stderr,"EVENT_REGISTER\n");
			ret = (*ioctl_func) (fd, request, wdioctl);
			break;

		default:
			ret = (*ioctl_func) (fd, request, wdioctl);
	}

	return ret;
}


typedef int (*open_funcptr_t) (const char *, int, mode_t);

int open (const char *pathname, int flags, ...)
{
	static open_funcptr_t func = NULL;
	mode_t mode = 0;
	va_list args;
	int fd;

	if (!func)
		func = (open_funcptr_t) dlsym (REAL_LIBC, "open");

	if (flags & O_CREAT) {
		va_start(args, flags);
		mode = va_arg(args, mode_t);
		va_end(args);
	}

	fd = (*func) (pathname, flags, mode);

	if (!strcmp (pathname, "/dev/windrvr6")) {
		fprintf(stderr,"opening windrvr6\n");
		windrvrfd = fd;
	}

	return fd;
}

void diff(unsigned char *buf1, unsigned char *buf2, int len) {
	int i;

	for(i=0; i<len; i++) {
		if (buf1[i] != buf2[i]) {
			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]:'.'));
		}
	}
}

void hexdump(unsigned char *buf, int len) {
	int i;

	for(i=0; i<len; i++) {
		fprintf(stderr,"%02x ", buf[i]);
		if ((i % 16) == 15)
			fprintf(stderr,"\n");
	}
}

int ioctl(int fd, int request, ...)
{
	va_list args;
	void *argp;
	int ret;

	if (!ioctl_func)                                                                    
		ioctl_func = (int (*) (int, int, void *)) dlsym (REAL_LIBC, "ioctl");             

	va_start (args, request);
	argp = va_arg (args, void *);
	va_end (args);

	if (fd == windrvrfd)
		ret = do_wdioctl(fd, request, argp);
	else
		ret = (*ioctl_func) (fd, request, argp);

	return ret;
}

#if 0
void *mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset)
{
	static void* (*func) (void *, size_t, int, int, int, off_t) = NULL;
	void *ret;

	if (!func)
		func = (void* (*) (void *, size_t, int, int, int, off_t)) dlsym (REAL_LIBC, "mmap");

	ret = (*func) (start, length, prot, flags, fd, offset);
	fprintf(stderr,"MMAP: %x, %d, %d, %d, %d, %d -> %x\n", (unsigned int)start, length, prot, flags, fd, offset, (unsigned int)ret);
	mmapped = ret;
	mmapplen = length;

	return ret;
}

void *mmap64(void *start, size_t length, int prot, int flags, int fd, off64_t offset)
{
	static void* (*func) (void *, size_t, int, int, int, off64_t) = NULL;
	void *ret;

	if (!func)
		func = (void* (*) (void *, size_t, int, int, int, off64_t)) dlsym (REAL_LIBC, "mmap64");

	ret = (*func) (start, length, prot, flags, fd, offset);
	fprintf(stderr,"MMAP64: %x, %d, %d, %d, %d, %lld -> %x\n", (unsigned int)start, length, prot, flags, fd, offset, (unsigned int)ret);
	mmapped = ret;
	mmapplen = length;

	return ret;
}

void *mmap2(void *start, size_t length, int prot, int flags, int fd, off_t pgoffset)
{
	static void* (*func) (void *, size_t, int, int, int, off_t) = NULL;
	void *ret;

	if (!func)
		func = (void* (*) (void *, size_t, int, int, int, off_t)) dlsym (REAL_LIBC, "mmap2");

	ret = (*func) (start, length, prot, flags, fd, pgoffset);
	fprintf(stderr,"MMAP2: %x, %d, %d, %d, %d, %d -> %x\n", (unsigned int)start, length, prot, flags, fd, pgoffset, (unsigned int)ret);
	mmapped = ret;
	mmapplen = length;

	return ret;
}

void *malloc(size_t size)
{
	static void* (*func) (size_t) = NULL;
	void *ret;

	if (!func)
		func = (void* (*) (size_t)) dlsym(REAL_LIBC, "malloc");
	
	ret = (*func) (size);
	
	//fprintf(stderr,"MALLOC: %d -> %x\n", size, (unsigned int) ret);

	return ret;
}
#endif


#endif
Commit	Line	Data
cdc711dc	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>
da3ba95a	21	#include "xilinx.h"
cdc711dc	22
9c9fd67c	23	static int (ioctl_func) (int, int, void ) = NULL;
2c2119eb	24	static int windrvrfd = 0;
cdc711dc	25
cdc711dc	26	void hexdump(unsigned char *buf, int len);
da3ba95a	27	void diff(unsigned char buf1, unsigned char buf2, int len);
cdc711dc	28
9c9fd67c	29	int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
cdc711dc	30	struct header_struct* wdheader = (struct header_struct*)wdioctl;
9c9fd67c	31	struct version_struct *version;
9c9fd67c	32	int ret = 0;
cdc711dc	33
da3ba95a	34	if (wdheader->magic != MAGIC) {
2c2119eb	35	fprintf(stderr,"!!!ERROR: magic header does not match!!!\n");
2c2119eb	36	return (*ioctl_func) (fd, request, wdioctl);
cdc711dc	37	}
cdc711dc	38
cdc711dc	39	switch(request) {
da3ba95a	40	case VERSION:
9c9fd67c	41	version = (struct version_struct*)(wdheader->data);
	42	strcpy(version->version, "WinDriver no more");
	43	version->versionul = 999;
	44	fprintf(stderr,"faking VERSION\n");
cdc711dc	45	break;
2c2119eb	46
	47	case LICENSE:
	48	fprintf(stderr,"faking LICENSE\n");
	49	break;
	50
9c9fd67c	51	case CARD_REGISTER:
9c9fd67c	52	{
2c2119eb	53	//struct card_register* cr = (struct card_register*)(wdheader->data);
9c9fd67c	54	/* Todo: LPT-Port already in use */
	55	}
	56	fprintf(stderr,"faking CARD_REGISTER\n");
da3ba95a	57	break;
2c2119eb	58
da3ba95a	59	case USB_TRANSFER:
9c9fd67c	60	fprintf(stderr,"in USB_TRANSFER");
da3ba95a	61	{
	62	struct usb_transfer ut = (struct usb_transfer)(wdheader->data);
	63
2c2119eb	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);
9c9fd67c	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
2c2119eb	76	fprintf(stderr,"Transferred: %lu (%s)\n",ut->dwBytesTransferred, (ut->fRead?"read":"write"));
9c9fd67c	77	if (ut->fRead && ut->dwBytesTransferred)
	78	{
	79	fprintf(stderr,"Read: ");
	80	hexdump(ut->pBuffer, ut->dwBytesTransferred);
	81	}
da3ba95a	82	fprintf(stderr,"\n");
da3ba95a	83	}
cdc711dc	84	break;
2c2119eb	85
da3ba95a	86	case INT_ENABLE:
9c9fd67c	87	fprintf(stderr,"faking INT_ENABLE");
da3ba95a	88	{
9c9fd67c	89	struct interrupt it = (struct interrupt)(wdheader->data);
cdc711dc	90
2c2119eb	91	fprintf(stderr," Handle: %lu, Options: %lx, ncmds: %lu\n", it->hInterrupt, it->dwOptions, it->dwCmds);
cdc711dc	92
9c9fd67c	93	it->fEnableOk = 1;
	94	//ret = (*ioctl_func) (fd, request, wdioctl);
	95	}
cdc711dc	96
cdc711dc	97	break;
9c9fd67c	98
da3ba95a	99	case INT_DISABLE:
9c9fd67c	100	fprintf(stderr,"INT_DISABLE\n");
da3ba95a	101	{
9c9fd67c	102	struct interrupt it = (struct interrupt)(wdheader->data);
da3ba95a	103
2c2119eb	104	fprintf(stderr," Handle: %lu, Options: %lx, ncmds: %lu\n", it->hInterrupt, it->dwOptions, it->dwCmds);
9c9fd67c	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);
da3ba95a	112	fprintf(stderr,"\n");
da3ba95a	113	}
da3ba95a	114	break;
da3ba95a	115
9c9fd67c	116	case USB_SET_INTERFACE:
9c9fd67c	117	fprintf(stderr,"USB_SET_INTERFACE\n");
da3ba95a	118	{
9c9fd67c	119	struct usb_set_interface usi = (struct usb_set_interface)(wdheader->data);
9c9fd67c	120
2c2119eb	121	fprintf(stderr,"unique: %lu, interfacenum: %lu, alternatesetting: %lu, options: %lx\n", usi->dwUniqueID, usi->dwInterfaceNum, usi->dwAlternateSetting, usi->dwOptions);
9c9fd67c	122	ret = (*ioctl_func) (fd, request, wdioctl);
da3ba95a	123	}
cdc711dc	124	break;
da3ba95a	125
9c9fd67c	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
2c2119eb	132	fprintf(stderr, "uniqe: %lu, bytes: %lu, options: %lx\n", ugdd->dwUniqueID, ugdd->dwBytes, ugdd->dwOptions);
9c9fd67c	133	pSize = ugdd->dwBytes;
	134	ret = (*ioctl_func) (fd, request, wdioctl);
	135	if (pSize) {
	136	hexdump(ugdd->pBuf, pSize);
	137	fprintf(stderr, "\n");
da3ba95a	138	}
da3ba95a	139	}
9c9fd67c	140	break;
9c9fd67c	141
da3ba95a	142	case TRANSFER:
9c9fd67c	143	fprintf(stderr,"TRANSFER\n");
	144	ret = (*ioctl_func) (fd, request, wdioctl);
	145	break;
	146
da3ba95a	147	case EVENT_UNREGISTER:
9c9fd67c	148	fprintf(stderr,"EVENT_UNREGISTER\n");
	149	ret = (*ioctl_func) (fd, request, wdioctl);
	150	break;
	151
da3ba95a	152	case INT_WAIT:
9c9fd67c	153	fprintf(stderr,"INT_WAIT\n");
	154	ret = (*ioctl_func) (fd, request, wdioctl);
	155	break;
	156
da3ba95a	157	case CARD_UNREGISTER:
9c9fd67c	158	fprintf(stderr,"CARD_UNREGISTER\n");
	159	ret = (*ioctl_func) (fd, request, wdioctl);
	160	break;
	161
da3ba95a	162	case EVENT_PULL:
9c9fd67c	163	fprintf(stderr,"EVENT_PULL\n");
	164	ret = (*ioctl_func) (fd, request, wdioctl);
	165	break;
	166
da3ba95a	167	case EVENT_REGISTER:
9c9fd67c	168	fprintf(stderr,"EVENT_REGISTER\n");
	169	ret = (*ioctl_func) (fd, request, wdioctl);
	170	break;
	171
da3ba95a	172	default:
9c9fd67c	173	ret = (*ioctl_func) (fd, request, wdioctl);
cdc711dc	174	}
da3ba95a	175
9c9fd67c	176	return ret;
cdc711dc	177	}
	178
	179
	180	typedef int (open_funcptr_t) (const char , int, mode_t);
	181
cdc711dc	182	int open (const char *pathname, int flags, ...)
	183	{
	184	static open_funcptr_t func = NULL;
	185	mode_t mode = 0;
	186	va_list args;
	187	int fd;
	188
	189	if (!func)
	190	func = (open_funcptr_t) dlsym (REAL_LIBC, "open");
	191
	192	if (flags & O_CREAT) {
	193	va_start(args, flags);
	194	mode = va_arg(args, mode_t);
	195	va_end(args);
	196	}
	197
	198	fd = (*func) (pathname, flags, mode);
	199
	200	if (!strcmp (pathname, "/dev/windrvr6")) {
	201	fprintf(stderr,"opening windrvr6\n");
	202	windrvrfd = fd;
	203	}
	204
	205	return fd;
	206	}
	207
	208	void diff(unsigned char buf1, unsigned char buf2, int len) {
	209	int i;
	210
	211	for(i=0; i<len; i++) {
	212	if (buf1[i] != buf2[i]) {
	213	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]:'.'));
	214	}
	215	}
	216	}
	217
	218	void hexdump(unsigned char *buf, int len) {
	219	int i;
	220
	221	for(i=0; i<len; i++) {
	222	fprintf(stderr,"%02x ", buf[i]);
	223	if ((i % 16) == 15)
	224	fprintf(stderr,"\n");
	225	}
	226	}
	227
	228	int ioctl(int fd, int request, ...)
	229	{
cdc711dc	230	va_list args;
cdc711dc	231	void *argp;
cdc711dc	232	int ret;
cdc711dc	233
9c9fd67c	234	if (!ioctl_func)
9c9fd67c	235	ioctl_func = (int () (int, int, void )) dlsym (REAL_LIBC, "ioctl");
cdc711dc	236
	237	va_start (args, request);
	238	argp = va_arg (args, void *);
	239	va_end (args);
	240
9c9fd67c	241	if (fd == windrvrfd)
	242	ret = do_wdioctl(fd, request, argp);
	243	else
	244	ret = (*ioctl_func) (fd, request, argp);
cdc711dc	245
cdc711dc	246	return ret;
	247	}
	248
da3ba95a	249	#if 0
cdc711dc	250	void mmap(void start, size_t length, int prot, int flags, int fd, off_t offset)
	251	{
	252	static void* (func) (void , size_t, int, int, int, off_t) = NULL;
	253	void *ret;
	254
	255	if (!func)
	256	func = (void* () (void , size_t, int, int, int, off_t)) dlsym (REAL_LIBC, "mmap");
	257
	258	ret = (*func) (start, length, prot, flags, fd, offset);
	259	fprintf(stderr,"MMAP: %x, %d, %d, %d, %d, %d -> %x\n", (unsigned int)start, length, prot, flags, fd, offset, (unsigned int)ret);
	260	mmapped = ret;
	261	mmapplen = length;
	262
	263	return ret;
	264	}
	265
	266	void mmap64(void start, size_t length, int prot, int flags, int fd, off64_t offset)
	267	{
	268	static void* (func) (void , size_t, int, int, int, off64_t) = NULL;
	269	void *ret;
	270
	271	if (!func)
	272	func = (void* () (void , size_t, int, int, int, off64_t)) dlsym (REAL_LIBC, "mmap64");
	273
	274	ret = (*func) (start, length, prot, flags, fd, offset);
	275	fprintf(stderr,"MMAP64: %x, %d, %d, %d, %d, %lld -> %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 mmap2(void start, size_t length, int prot, int flags, int fd, off_t pgoffset)
	283	{
	284	static void* (func) (void , size_t, int, int, int, off_t) = NULL;
	285	void *ret;
	286
	287	if (!func)
	288	func = (void* () (void , size_t, int, int, int, off_t)) dlsym (REAL_LIBC, "mmap2");
	289
	290	ret = (*func) (start, length, prot, flags, fd, pgoffset);
	291	fprintf(stderr,"MMAP2: %x, %d, %d, %d, %d, %d -> %x\n", (unsigned int)start, length, prot, flags, fd, pgoffset, (unsigned int)ret);
	292	mmapped = ret;
	293	mmapplen = length;
	294
	295	return ret;
	296	}
	297
	298	void *malloc(size_t size)
	299	{
	300	static void* (*func) (size_t) = NULL;
	301	void *ret;
	302
	303	if (!func)
	304	func = (void* (*) (size_t)) dlsym(REAL_LIBC, "malloc");
	305
	306	ret = (*func) (size);
	307
	308	//fprintf(stderr,"MALLOC: %d -> %x\n", size, (unsigned int) ret);
	309
	310	return ret;
	311	}
da3ba95a	312	#endif
cdc711dc	313
	314
	315	#endif