summaryrefslogtreecommitdiff
path: root/win32/openpcd.c
blob: 748b52f113c386d54e63fef0c7615211f16f6936 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
/*************************************************************************/
/*                                                                       */
/* Mifare support for accessing RFID cards with OpenPCD RFID reader      */
/* in WIN32 - see http://www.openpcd.org                                 */
/*                                                                       */
/* Copyright (C) 2007 Milosch Meriac <meriac@bitmanufaktur.de>           */
/*                                                                       */
/* Redistribution and use in source and binary forms, with or without    */
/* modification, are permitted provided that the following conditions are*/
/* met:                                                                  */
/*                                                                       */
/* Redistributions of source code must retain the above copyright notice,*/
/* this list of conditions and the following disclaimer.                 */
/* Redistributions in binary form must reproduce the above copyright     */
/* notice, this list of conditions and the following disclaimer in the   */
/* documentation and/or other materials provided with the distribution.  */
/*                                                                       */
/* The name of the author may not be used to endorse or promote products */
/* derived from this software without specific prior written permission. */
/*                                                                       */
/* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR  */
/* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED        */
/* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE*/
/* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,    */
/* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES    */
/* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR    */
/* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)    */
/* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,   */
/* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING */
/* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE    */
/* POSSIBILITY OF SUCH DAMAGE.                                           */
/*                                                                       */
/*************************************************************************/

#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <windows.h>

#include <librfid/rfid.h>
#include <librfid/rfid_scan.h>
#include <librfid/rfid_reader.h>
#include <librfid/rfid_protocol.h>
#include <librfid/rfid_protocol_mifare_classic.h>

#define BUILD_DLL
#include "openpcd.h"

#define LIBMIFARE_MAGIC 0xDEADBEEF

struct openpcd_state
{
    unsigned int magic;    
    unsigned int cl_auth;
    struct rfid_reader_handle *rh;
    struct rfid_layer2_handle *l2h;
    struct rfid_protocol_handle *ph;
    unsigned char key[MIFARE_CL_KEY_LEN];
    unsigned int uid;
} openpcd_state;

int openpcd_cl_auth(struct openpcd_state* state ,int page)
{
    int rc;

    if(!state || page<=0 || page>MIFARE_CL_PAGE_MAX )
	return PCDERROR_INVALID_PARAMETER;
	
    if(!state->ph)
	return PCDERROR_CLOSED;

    rc = mfcl_set_key(state->ph, state->key);
    if (rc < 0)
	return PCDERROR_KEY_FORMAT;
	
    rc = mfcl_auth(state->ph, state->cl_auth, page);

    return rc<0 ? PCDERROR_KEY_AUTH : PCDERROR_NONE;
}

EXPORT int EXPORT_CONVENTION openpcd_set_key(MIFARE_HANDLE handle,unsigned int key_id,const void* key)
{
    struct openpcd_state *state;

    if(!handle)
	return PCDERROR_INVALID_PARAMETER;
    state=(struct openpcd_state*)handle;
    
    switch(key_id)
    {
	case PCDAUTH_KEYID_1A:
	    state->cl_auth=RFID_CMD_MIFARE_AUTH1A;
	    break;
	case PCDAUTH_KEYID_1B:
	    state->cl_auth=RFID_CMD_MIFARE_AUTH1B;
	    break;
	default:
	    return PCDERROR_INVALID_PARAMETER;
    }
    
    memcpy(state->key,key,MIFARE_CL_KEY_LEN);
    
    return PCDERROR_NONE;
}

EXPORT int EXPORT_CONVENTION openpcd_select_card(MIFARE_HANDLE handle)
{
    int res;
    struct openpcd_state *state;
        
    if(!handle)
	return PCDERROR_INVALID_PARAMETER;
    state=(struct openpcd_state*)handle;
    
    state->l2h = rfid_layer2_init(state->rh,RFID_LAYER2_ISO14443A);
    if(!state->l2h)
	res=PCDERROR_LAYER2_INIT;
    else
    {        
	if( rfid_layer2_open(state->l2h)>=0 ) 
	{
    	    state->ph = rfid_protocol_init(state->l2h,RFID_PROTOCOL_MIFARE_CLASSIC);
	
	    if(state->ph)
    	    {
		if(rfid_protocol_open(state->ph)>=0)
	    	    return PCDERROR_NONE;
		
		rfid_protocol_fini(state->ph);
		state->ph=NULL;
	
		res=PCDERROR_LAYER3_OPEN;
	    }
	    else
		res=PCDERROR_LAYER3_INIT;

	    rfid_layer2_close(state->l2h);	
        }
	else
    	    res=PCDERROR_LAYER2_OPEN;
    }
    
    rfid_layer2_fini(state->l2h);
    state->l2h=NULL;
    
    return res;	
}

EXPORT int EXPORT_CONVENTION openpcd_deselect_card(MIFARE_HANDLE handle)
{
    struct openpcd_state *state;
        
    if(!handle)
	return PCDERROR_INVALID_PARAMETER;
    state=(struct openpcd_state*)handle;
    
    if(state->ph)
    {
	rfid_protocol_close(state->ph);
	rfid_protocol_fini(state->ph);
	rfid_layer2_close(state->l2h);
	rfid_layer2_fini(state->l2h);

	state->ph=NULL;
	state->l2h=NULL;
	state->uid=0;
	
	return PCDERROR_NONE;
    }    
    else
	return PCDERROR_CLOSED;
}

EXPORT int EXPORT_CONVENTION openpcd_get_card_id(MIFARE_HANDLE handle,unsigned int *uid)
{
    unsigned int uid_len;
    struct openpcd_state *state;
        
    if(!handle || !uid)
	return PCDERROR_INVALID_PARAMETER;
    state=(struct openpcd_state*)handle;
    
    if(state->ph)
    {
	uid_len=sizeof(*uid);
	if(rfid_layer2_getopt(state->l2h,RFID_OPT_LAYER2_UID,uid,&uid_len))
	    return PCDERROR_INVALID_PARAMETER;
	else
	    return uid_len==4 ? PCDERROR_NONE:PCDERROR_READ_FAILED;
    }
    else
	return PCDERROR_CLOSED;    
}

EXPORT int EXPORT_CONVENTION openpcd_open_reader(MIFARE_HANDLE *handle)
{
    struct rfid_reader_handle *rh;
    struct openpcd_state *state;
    
    if(!handle)
	return PCDERROR_INVALID_PARAMETER;
	
    rh = rfid_reader_open(NULL, RFID_READER_OPENPCD);
    if(!rh)
	return PCDERROR_NO_READER;
    
    state=(struct openpcd_state*)malloc(sizeof(*state));
    if(state)
    {
	memset(state,0,sizeof(*state));
	state->magic=LIBMIFARE_MAGIC;
	state->rh=rh;
	state->cl_auth=RFID_CMD_MIFARE_AUTH1A;
	memset(state->key,0xFF,sizeof(state->key));
	
	// do initial reset
	openpcd_reset_reader((MIFARE_HANDLE)state);
	Sleep(1500);
	// reopen
        state->rh = rfid_reader_open(NULL, RFID_READER_OPENPCD);
	
	*handle=(MIFARE_HANDLE)state;
	
	return PCDERROR_NONE;
    }
    else
    {	
	rfid_reader_close(rh);
	return PCDERROR_OUT_OF_MEMORY;
    }
}

EXPORT int EXPORT_CONVENTION openpcd_close_reader(MIFARE_HANDLE handle)
{
    struct openpcd_state *state;
    
    if(!handle)
	return PCDERROR_INVALID_PARAMETER;
    state=(struct openpcd_state*)handle;

    openpcd_deselect_card(handle);

    openpcd_reset_reader(handle);
    Sleep(500);

    state->magic=0;
    rfid_reader_close(state->rh);
    free(state);    
    
    return PCDERROR_NONE;
}

EXPORT int EXPORT_CONVENTION openpcd_read(MIFARE_HANDLE handle,int page, void* data, int len)
{
    int res;
    unsigned int count;
    unsigned char buf[MIFARE_CL_PAGE_SIZE];
    struct openpcd_state *state;        
    
    if( !handle || !buf || page<0 || page>MIFARE_CL_PAGE_MAX || len<=0 || len>sizeof(buf))
	return PCDERROR_INVALID_PARAMETER;
	
    state=(struct openpcd_state*)handle;
    if ( (res=openpcd_cl_auth(state,page)) < 0)
	return res;
	
    count = sizeof(buf);
    res = rfid_protocol_read(state->ph, page, buf, &count);    
    if(res>=0)
	memcpy(data,buf,len);

    if ( res<0 )
	return PCDERROR_READ_FAILED;
    else
	return count;
}

EXPORT int EXPORT_CONVENTION openpcd_write(MIFARE_HANDLE handle,int page,const void *data,int len)
{
    int res;
    unsigned char buf[16];
    struct openpcd_state *state;

    if( !handle || !buf || page<0 || page>MIFARE_CL_PAGE_MAX || len<=0 || len>sizeof(buf))
	return PCDERROR_INVALID_PARAMETER;
	
    state=(struct openpcd_state*)handle;
    if ( (res=openpcd_cl_auth(state,page)) < 0)
    	return res;

    memcpy(buf,data,len);
    memset(&buf[len],0,sizeof(buf)-len);
    
    res = rfid_protocol_write(state->ph, page, buf, sizeof(buf));
    
    return (res<0 && res!=-101) ? PCDERROR_WRITE_FAILED : len;
}

EXPORT int EXPORT_CONVENTION openpcd_get_api_version(MIFARE_HANDLE handle, unsigned int *version)
{
    unsigned char b;
    struct openpcd_state *state;

    if( !handle || !version )
	return PCDERROR_INVALID_PARAMETER;
    state=(struct openpcd_state*)handle;
    
    b=0;
	
    if(state->rh->reader->get_api_version(state->rh,&b)<0)
	return PCDERROR_READER_VERSION;
    else
    {
	*version=b;
	return PCDERROR_NONE;
    }
}

EXPORT int EXPORT_CONVENTION openpcd_reset_reader(MIFARE_HANDLE handle)
{
    struct openpcd_state *state;

    if( !handle )
	return PCDERROR_INVALID_PARAMETER;
    state=(struct openpcd_state*)handle;
	
    return (state->rh->reader->reset(state->rh)<0) ? PCDERROR_WRITE_FAILED : PCDERROR_NONE;
}

EXPORT int EXPORT_CONVENTION openpcd_get_environment(
    MIFARE_HANDLE handle,
    unsigned char count,
    unsigned char* data
    )
{
    struct openpcd_state *state;

    if( !handle )
	return PCDERROR_INVALID_PARAMETER;
    state=(struct openpcd_state*)handle;
	
    return (state->rh->reader->get_environment(state->rh,count,data)<0) ? PCDERROR_READ_FAILED : PCDERROR_NONE;
}

EXPORT int EXPORT_CONVENTION openpcd_set_environment(
    MIFARE_HANDLE handle,
    unsigned char count,
    const unsigned char* data)
{
    struct openpcd_state *state;

    if( !handle )
	return PCDERROR_INVALID_PARAMETER;
    state=(struct openpcd_state*)handle;
	
    return (state->rh->reader->set_environment(state->rh,count,data)<0) ? PCDERROR_WRITE_FAILED : PCDERROR_NONE;
}

EXPORT char* EXPORT_CONVENTION openpcd_get_error_text(int error)
{
    const static char* msg[]={
	"PCDERROR_NONE",		//  0
	"PCDERROR_INVALID_PARAMETER",	// -1
	"PCDERROR_KEY_FORMAT",		// -2
	"PCDERROR_KEY_AUTH",		// -3
	"PCDERROR_NO_CARD_FOUND",	// -4
	"PCDERROR_LAYER2_INIT",		// -5
	"PCDERROR_LAYER2_OPEN",		// -6
	"PCDERROR_LAYER3_INIT",		// -7
	"PCDERROR_LAYER3_OPEN",		// -8
	"PCDERROR_SELECT",		// -9
	"PCDERROR_READ_FAILED",		// -10
	"PCDERROR_WRITE_FAILED",	// -11
	"PCDERROR_CLOSED",		// -12
	"PCDERROR_NO_READER",		// -13
	"PCDERROR_OUT_OF_MEMORY",	// -14
	"PCDERROR_READER_VERSION"	// -15
    };
    const int count=sizeof(msg)/sizeof(msg[0]);
    
    if(error>0)
	error=0;
    else
	error=-error;
		
    return (error>=count) ? "PCDERROR_UNKNOWN" : (char*)msg[error];
}
personal git repositories of Harald Welte. Your mileage may vary