--- /dev/null
+/*************************************************************************/
+/* */
+/* 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 <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;
+}
+
+void Sleep(unsigned int ms ) {
+ usleep(ms*1000);
+}
+
+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];
+}
projects / librfid / blobdiff