From 767cf2b324172c63a994ff7d95891280d780ac7e Mon Sep 17 00:00:00 2001 From: Roel Verdult Date: Thu, 12 Feb 2009 12:39:05 +0000 Subject: [PATCH] Initial release --- LICENSE.TXT | 674 ++++++++++++++++++++++++++++++++++++++++++ Makefile | 58 ++++ README.TXT | 146 +++++++++ acr122.c | 187 ++++++++++++ acr122.h | 36 +++ anticol.c | 142 +++++++++ bitutils.c | 172 +++++++++++ bitutils.h | 61 ++++ defines.h | 45 +++ libnfc.c | 524 ++++++++++++++++++++++++++++++++ libnfc.h | 50 ++++ list.c | 83 ++++++ mfread.c | 225 ++++++++++++++ mfwrite.c | 232 +++++++++++++++ mifaretag.h | 54 ++++ relay.c | 107 +++++++ simulate.c | 108 +++++++ types.h | 69 +++++ win32/WINSCARD.LIB | Bin 0 -> 13298 bytes win32/anticol.vcproj | 184 ++++++++++++ win32/libnfc.def | 41 +++ win32/libnfc.sln | 74 +++++ win32/libnfc.vcproj | 217 ++++++++++++++ win32/list.vcproj | 181 ++++++++++++ win32/mfread.vcproj | 186 ++++++++++++ win32/mfwrite.vcproj | 185 ++++++++++++ win32/relay.vcproj | 182 ++++++++++++ win32/simulate.vcproj | 182 ++++++++++++ win32bin/anticol.exe | Bin 0 -> 7168 bytes win32bin/libnfc.dll | Bin 0 -> 15360 bytes win32bin/libnfc.lib | Bin 0 -> 8896 bytes win32bin/list.exe | Bin 0 -> 6656 bytes win32bin/mfread.exe | Bin 0 -> 8192 bytes win32bin/mfwrite.exe | Bin 0 -> 8192 bytes win32bin/relay.exe | Bin 0 -> 7680 bytes win32bin/simulate.exe | Bin 0 -> 7168 bytes 36 files changed, 4405 insertions(+) create mode 100644 LICENSE.TXT create mode 100644 Makefile create mode 100644 README.TXT create mode 100644 acr122.c create mode 100644 acr122.h create mode 100644 anticol.c create mode 100644 bitutils.c create mode 100644 bitutils.h create mode 100644 defines.h create mode 100644 libnfc.c create mode 100644 libnfc.h create mode 100644 list.c create mode 100644 mfread.c create mode 100644 mfwrite.c create mode 100644 mifaretag.h create mode 100644 relay.c create mode 100644 simulate.c create mode 100644 types.h create mode 100644 win32/WINSCARD.LIB create mode 100644 win32/anticol.vcproj create mode 100644 win32/libnfc.def create mode 100644 win32/libnfc.sln create mode 100644 win32/libnfc.vcproj create mode 100644 win32/list.vcproj create mode 100644 win32/mfread.vcproj create mode 100644 win32/mfwrite.vcproj create mode 100644 win32/relay.vcproj create mode 100644 win32/simulate.vcproj create mode 100644 win32bin/anticol.exe create mode 100644 win32bin/libnfc.dll create mode 100644 win32bin/libnfc.lib create mode 100644 win32bin/list.exe create mode 100644 win32bin/mfread.exe create mode 100644 win32bin/mfwrite.exe create mode 100644 win32bin/relay.exe create mode 100644 win32bin/simulate.exe diff --git a/LICENSE.TXT b/LICENSE.TXT new file mode 100644 index 0000000..818433e --- /dev/null +++ b/LICENSE.TXT @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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Interpretation of Sections 15 and 16. + + If the disclaimer of warranty and limitation of liability provided +above cannot be given local legal effect according to their terms, +reviewing courts shall apply local law that most closely approximates +an absolute waiver of all civil liability in connection with the +Program, unless a warranty or assumption of liability accompanies a +copy of the Program in return for a fee. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +state the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + + Copyright (C) + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + Copyright (C) + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..cba50ec --- /dev/null +++ b/Makefile @@ -0,0 +1,58 @@ +############################################### +# Linux +############################################### +LIB_TYPE=so +LIB_FLAGS=-shared +PCSC_HEADERS=-I/usr/include/PCSC +PCSC_LIB=-lpcsclite -Wl,-rpath,. + +############################################### +# MacOS X +############################################### +#LIB_TYPE=dylib +#LIB_FLAGS=-dynamiclib -flat_namespace -undefined suppress +#PCSC_HEADERS=-I/System/Library/Frameworks/PCSC.framework/Headers +#PCSC_LIB=-framework PCSC + +CC = gcc +LD = gcc +CFLAGS = -fPIC -Wall -std=c99 -O4 $(PCSC_HEADERS) +LDFLAGS = -fPIC $(PCSC_LIB) + +OBJS = acr122.o bitutils.o libnfc.o +HEADERS = acr122.h bitutils.h defines.h libnfc.h +LIB = libnfc.$(LIB_TYPE) +EXES = anticol list simulate relay mfread mfwrite + +all: $(LIB) $(EXES) + +acr122.o: acr122.c $(HEADERS) +bitutils.o: bitutils.c $(HEADERS) +libnfc.o: libnfc.c $(HEADERS) + +%.s : %.c + $(CC) -S -dA $(CFLAGS) -o $@ $< + +libnfc.$(LIB_TYPE): $(OBJS) + $(LD) $(LDFLAGS) -o $(LIB) $(LIB_FLAGS) $(OBJS) + +anticol: $(OBJS) + $(LD) $(LDFLAGS) -o anticol anticol.c -L. -lnfc + +list: $(OBJS) + $(LD) $(LDFLAGS) -o list list.c -L. -lnfc + +simulate: $(OBJS) + $(LD) $(LDFLAGS) -o simulate simulate.c -L. -lnfc + +relay: $(OBJS) + $(LD) $(LDFLAGS) -o relay relay.c -L. -lnfc + +mfread: $(OBJS) + $(LD) $(LDFLAGS) -o mfread mfread.c -L. -lnfc + +mfwrite: $(OBJS) + $(LD) $(LDFLAGS) -o mfwrite mfwrite.c -L. -lnfc + +clean: + rm -f $(OBJS) $(LIB) $(EXES) diff --git a/README.TXT b/README.TXT new file mode 100644 index 0000000..22c3e77 --- /dev/null +++ b/README.TXT @@ -0,0 +1,146 @@ +------------------------------------------------------------------------ +Public platform independent Near Field Communication (NFC) library +Copyright (C) 2009, Roel Verdult + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 3 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see . + +------------------------------------------------------------------------ +Welcome to the community of libnfc (website: http://www.libnfc.org). + +libnfc version 1.0.0 + +Index: +1. Introduction +2. Hardware +3. Compilation +4. Examples +5. Todo +6. Contact + +------------------------------------------------------------------------ +1. Introduction + +Since the RFID market is spoiled by proprietary hard and software +we want to contribute constructively by distributing a free library +which can be used in RFID/NFC applications. + +------------------------------------------------------------------------ +2. Hardware + +To communicate with NFC targets/tags you need a USB device which is +called a "RFID Reader". The cheapest hardware around that can carries +a fully NFC complied chip is the ACR122 from the company ACS, Advanced +Card Systems Limited (website: http://www.acs.com.hk/acr122.php). +This reader uses the PN532 chipset from NXP Semiconductors. The reader +costs around the €60 and is available in different webshops all over +the world. The NFC reader used in the "tikitag" project is exactly the +same reader as the ACR122 but with a different logo. This reader is +available for only €35,- (website: http://www.tikitag.com). We would +recommend to use one of these readers, since we tested both of them. + +Other NFC readers, like the SCL3710 from SCM Microsystems (website: +http://www.scmmicro.com/scl3710/) are not supported yet. They use the +same chipset, so the instruction set is completely the same. This means +that with little effort these readers could be added to be part of the +NFC library. We would be very pleased if someone is willing to add this +support to libnfc. + +------------------------------------------------------------------------ +3. Compilation + +If you use linux, please make sure you have libpcsc-lite installed. +For Ubuntu this means you have to install the following packages: +$sudo apt-get install pcscd +$sudo apt-get install libpcsclite-dev +When these are installed, just run "make" and you are ready to go. + +MacOSX users have to edit the "Makefile" file in the main directory. +Uncomment the following lines: +#LIB_TYPE=... +#LIB_FLAGS=... +#PCSC_HEADERS=... +#PCSC_LIB=... +Run "make" and you it should work like a charm. + +Windows users can use the binairy files located in the "win32bin" +directory. Or they can open the VS2005 solution which can be found +in the "win32" directory. Compilation should work "out of the box". + +------------------------------------------------------------------------ +4. Examples + +There are 6 example tools coming with this library. They can be used +as a reference during development of your software. All tools try to +demonstrate a different feature. Below there is short description of +the tools and their purpose. + +anticol - Anti-collision demonstration tool for ISO14443A tags using + self constructed REQA/WUPA and SELECT frames. + +list - List passive tags tool for ISO14443A tags using the commands + available in the instruction set of the hardware chip. + +simulate - With this example you can turn your reader into a NFC target. + For testing purposes it simulates a ISO14443A tag with a UID + that consists of 0xDEADBEAF. The frames are delayed because + of the USB communication, so not all readers will recognize + the tag. The "Omnikey 5121" though has no problems with this + small delay. + +relay - This tool allows the user to use 2 readers. One will similate + a ISO14443A tag, while the 2nd reader will stay a reader. + The original tag can be placed on the 2nd reader and the + simulated tag can be placed on top of the original reader. + All communication is relayed now and showed on the screen. + NOTE: relaying frames is time-consuming, not all readers + allow slow responds from the (simulated) tag. Though, one of + the most used RFID readers, the "Omnikey 5121" has no problem + and can perfectly be used for demonstrating this features. + +mfread - With this tool a complete MIFARE card can be readout and stored + in a MIFARE dump file (*.mfd). + +mfwrite - With this tool a complete MIFARE card can be restored from a + a MIFARE dump file (*.mfd) back to the tag. + +A MIFARE dump file (*.mfd) is a plain 4KB image of a mifare tag. This +image should contain the data, keys and access bits on their usual position. +A Dump file is always 4KB, even when a 1KB tag is dumped. From the first +block, the manufacturer data, can be determined if you are dealing with +a 1KB or a 4KB tag. This is stored in the ATQA part of block0 (byte 6/7). +More info can be found in the MIFARE functional specification from NXP. +(Website: http://www.nxp.com/products/identification/mifare/classic) + +------------------------------------------------------------------------ +5. Todo + +Support more communication protocols. Sony Felica, ISO14443B and Innovision +Jewel Topaz tags are supported by the chipset, but they are not used by +this library. It would be very useful if we could add support for these +tags in this library. + +------------------------------------------------------------------------ +6. Contact + +Please visit the website (http://www.libnfc.org) and place your questions +in the community forum there. We are sure a member of the community will +help you out. + +------------------------------------------------------------------------ +Proprietary notes: + +Note: FeliCa is s registered trademark of Sony Corporation. MIFARE is a +trademark of NXP Semiconductors. Jewel Topaz is a trademark of Innovision +Research & Technology. All other trademarks are the property of their +respective owners. diff --git a/acr122.c b/acr122.c new file mode 100644 index 0000000..edd5525 --- /dev/null +++ b/acr122.c @@ -0,0 +1,187 @@ +/* + +Public platform independent Near Field Communication (NFC) library +Copyright (C) 2009, Roel Verdult + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 3 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see . + +*/ + +#include +#include +#include +#include "acr122.h" +#include "bitutils.h" + +#define SCARD_OPERATION_SUCCESS 0x61 +#define SCARD_OPERATION_ERROR 0x63 + +#define FIRMWARE_TEXT "ACR122U10" // ACR122U101(ACS), ACR122U102(Tikitag) + +#define ACR122_WRAP_LEN 5 +#define ACR122_COMMAND_LEN 266 + +#define ACR122_RESPONSE_LEN 268 + +#define MAX_READERS 16 + +static SCARDCONTEXT hCtx = null; + +static byte abtTxBuf[ACR122_WRAP_LEN+ACR122_COMMAND_LEN] = { 0xFF, 0x00, 0x00, 0x00 }; +static byte abtRxCmd[5] = { 0xFF,0xC0,0x00,0x00 }; +static byte uiRxCmdLen = sizeof(abtRxCmd); +static byte abtRxBuf[ACR122_RESPONSE_LEN]; +static ulong ulRxBufLen; +static byte abtGetFw[5] = { 0xFF,0x00,0x48,0x00,0x00 }; +static byte abtLed[9] = { 0xFF,0x00,0x40,0x05,0x04,0x00,0x00,0x00,0x00 }; + +dev_id acr122_connect(const ui32 uiDeviceIndex) +{ + SCARDHANDLE hCard = null; + char* pacReaders[MAX_READERS]; + char acList[256+64*MAX_READERS]; + ulong ulListLen = sizeof(acList); + ulong ulActiveProtocol = 0; + ui32 uiPos; + ui32 uiReaderCount; + ui32 uiReader; + ui32 uiReaderIndex; + + // Clear the reader list + memset(acList,0x00,ulListLen); + + // Test if context succeeded + if (SCardEstablishContext(SCARD_SCOPE_USER,null,null,&hCtx) != SCARD_S_SUCCESS) return INVALID_DEVICE_ID; + + // Retrieve the string array of all available pcsc readers + if (SCardListReaders(hCtx,null,acList,(void*)&ulListLen) != SCARD_S_SUCCESS) return INVALID_DEVICE_ID; + + pacReaders[0] = acList; + uiReaderCount = 1; + for (uiPos=0; uiPos ACR122_COMMAND_LEN) return false; + + // Store the length of the command we are going to send + abtTxBuf[4] = uiTxLen; + + #ifdef _LIBNFC_VERBOSE_ + printf("Tx: "); + print_hex(pbtTx,uiTxLen); + #endif + // Prepare and transmit the send buffer + memcpy(abtTxBuf+5,pbtTx,uiTxLen); + ulRxBufLen = sizeof(abtRxBuf); + if (SCardTransmit((SCARDHANDLE)di,SCARD_PCI_T0,abtTxBuf,uiTxLen+5,null,abtRxBuf,(void*)&ulRxBufLen) != SCARD_S_SUCCESS) return false; + + // Make sure we received the byte-count we expected + if (ulRxBufLen != 2) return false; + + // Check if the operation was successful, so an answer is available + if (*abtRxBuf == SCARD_OPERATION_ERROR) return false; + + // Retrieve the response bytes + abtRxCmd[4] = abtRxBuf[1]; + ulRxBufLen = sizeof(abtRxBuf); + if (SCardTransmit((SCARDHANDLE)di,SCARD_PCI_T0,abtRxCmd,uiRxCmdLen,null,abtRxBuf,(void*)&ulRxBufLen) != SCARD_S_SUCCESS) return false; + + // When the answer should be ignored, just return true + if (pbtRx == null || puiRxLen == null) return true; + + // Make sure we have an emulated answer that fits the return buffer + if (ulRxBufLen < 4 || (ulRxBufLen-4) > *puiRxLen) return false; + + // Wipe out the 4 APDU emulation bytes: D5 4B .. .. .. 90 00 + *puiRxLen = ulRxBufLen-4; + memcpy(pbtRx,abtRxBuf+2,*puiRxLen); + #ifdef _LIBNFC_VERBOSE_ + printf("Rx: "); + print_hex(pbtRx,*puiRxLen); + #endif + + // Transmission went successful + return true; +} + +char* acr122_firmware(const dev_id di) +{ + static char abtFw[11]; + ulong ulFwLen = sizeof(abtFw); + memset(abtFw,0x00,ulFwLen); + SCardTransmit((SCARDHANDLE)di,SCARD_PCI_T0,abtGetFw,sizeof(abtGetFw),null,(byte*)abtFw,(void*)&ulFwLen); + return abtFw; +} + +bool acr122_led_red(const dev_id di, bool bOn) +{ + byte abtBuf[2]; + ulong ulBufLen = sizeof(abtBuf); + return (SCardTransmit((SCARDHANDLE)di,SCARD_PCI_T0,abtLed,sizeof(abtLed),null,(byte*)abtBuf,(void*)&ulBufLen) == SCARD_S_SUCCESS); +} + diff --git a/acr122.h b/acr122.h new file mode 100644 index 0000000..d2c7786 --- /dev/null +++ b/acr122.h @@ -0,0 +1,36 @@ +/* + +Public platform independent Near Field Communication (NFC) library +Copyright (C) 2009, Roel Verdult + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 3 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see . + +*/ + +#ifndef _LIBNFC_ACR122_H_ +#define _LIBNFC_ACR122_H_ + +#include "defines.h" +#include "types.h" + +dev_id acr122_connect(const ui32 uiDeviceIndex); +void acr122_disconnect(const dev_id di); +bool acr122_transceive(const dev_id di, const byte* pbtTx, const ui32 uiTxLen, byte* pbtRx, ui32* puiRxLen); +bool acr122_transceive_(const dev_id di, const byte* pbtTx, const ui32 uiTxLen, byte* pbtRx, ui32* puiRxLen); + +char* acr122_firmware(const dev_id di); +bool acr122_led_red(const dev_id di, bool bOn); + +#endif // _LIBNFC_ACR122_H_ + diff --git a/anticol.c b/anticol.c new file mode 100644 index 0000000..876d0a9 --- /dev/null +++ b/anticol.c @@ -0,0 +1,142 @@ +/* + +Public platform independent Near Field Communication (NFC) library +Copyright (C) 2009, Roel Verdult + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 3 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see . + +*/ + +#include +#include +#include +#include "libnfc.h" + +static byte abtRecv[MAX_FRAME_LEN]; +static ui32 uiRecvLen; +static byte abtUid[10]; +static ui32 uiUidLen = 4; +static dev_id di; + +// ISO14443A Anti-Collision Commands +byte abtWupa [1] = { 0x52 }; +byte abtSelectAll [2] = { 0x93,0x20 }; +byte abtSelectTag [9] = { 0x93,0x70,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }; +byte abtRats [4] = { 0xe0,0x50,0xbc,0xa5 }; +byte abtHalt [4] = { 0x50,0x00,0x57,0xcd }; + +bool transmit_7bits(const byte btTx) +{ + bool bResult; + printf("R: %02x\n",btTx); + uiRecvLen = MAX_FRAME_LEN; + bResult = nfc_reader_transceive_7bits(di,btTx,abtRecv,&uiRecvLen); + if (bResult) + { + printf("T: "); + print_hex(abtRecv,uiRecvLen); + } + return bResult; +} + +bool transmit_bytes(const byte* pbtTx, const ui32 uiTxLen) +{ + bool bResult; + printf("R: "); + print_hex(pbtTx,uiTxLen); + uiRecvLen = MAX_FRAME_LEN; + bResult = nfc_reader_transceive_bytes(di,pbtTx,uiTxLen,abtRecv,&uiRecvLen); + if (bResult) + { + printf("T: "); + print_hex(abtRecv,uiRecvLen); + } + return bResult; +} + +int main(int argc, const char* argv[]) +{ + // Try to open the NFC reader + di = acr122_connect(0); + + if (di == INVALID_DEVICE_ID) + { + printf("Error connecting NFC reader\n"); + return 1; + } + nfc_reader_init(di); + + // Let the reader only try once to find a tag + nfc_configure_list_passive_infinite(di,false); + + // Drop the field so the tag will be reset + nfc_configure_field(di,false); + + // Configure the communication channel, we use our own CRC + nfc_configure_handle_crc(di,false); + nfc_configure_handle_parity(di,true); + + // Enable the field so the more power consuming tags will respond + nfc_configure_field(di,true); + + printf("\nConnected to NFC reader\n\n"); + + if (!transmit_7bits(*abtWupa)) + { + printf("Error: No tag available\n"); + return 1; + } + // Anti-collision + transmit_bytes(abtSelectAll,2); + + // Save the UID + memcpy(abtUid,abtRecv,4); + memcpy(abtSelectTag+2,abtRecv,5); + append_iso14443a_crc(abtSelectTag,7); + transmit_bytes(abtSelectTag,9); + + if (abtUid[0] == 0x88) + { + abtSelectAll[0] = 0x95; + abtSelectTag[0] = 0x95; + + // Anti-collision + transmit_bytes(abtSelectAll,2); + + // Save the UID + memcpy(abtUid+4,abtRecv,4); + memcpy(abtSelectTag+2,abtRecv,5); + append_iso14443a_crc(abtSelectTag,7); + transmit_bytes(abtSelectTag,9); + uiUidLen = 7; + } + + // Request ATS, this only applies to tags that support ISO 14443A-4 + if (abtRecv[0] & 0x20) + { + transmit_bytes(abtRats,4); + } + + // Done, halt the tag now + transmit_bytes(abtHalt,4); + + printf("\nFound tag with UID: "); + if (uiUidLen == 4) + { + printf("%08x\n",swap_endian32(abtUid)); + } else { + printf("%014llx\n",swap_endian64(abtUid)&0x00ffffffffffffffull); + } + return 0; +} diff --git a/bitutils.c b/bitutils.c new file mode 100644 index 0000000..f7f9458 --- /dev/null +++ b/bitutils.c @@ -0,0 +1,172 @@ +/* + +Public platform independent Near Field Communication (NFC) library +Copyright (C) 2009, Roel Verdult + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 3 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see . + +*/ + +#include +#include "bitutils.h" + +const static byte OddParity[256] = { + 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, + 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, + 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, + 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, + 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, + 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, + 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, + 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, + 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, + 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, + 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, + 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, + 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, + 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, + 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, + 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1 +}; + +const static byte ByteMirror[256] = { + 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0, 0x10, 0x90, 0x50, 0xd0, 0x30, + 0xb0, 0x70, 0xf0, 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8, 0x18, 0x98, + 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8, 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, + 0xe4, 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4, 0x0c, 0x8c, 0x4c, 0xcc, + 0x2c, 0xac, 0x6c, 0xec, 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc, 0x02, + 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2, 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, + 0x72, 0xf2, 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea, 0x1a, 0x9a, 0x5a, + 0xda, 0x3a, 0xba, 0x7a, 0xfa, 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6, + 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6, 0x0e, 0x8e, 0x4e, 0xce, 0x2e, + 0xae, 0x6e, 0xee, 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe, 0x01, 0x81, + 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1, 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, + 0xf1, 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9, 0x19, 0x99, 0x59, 0xd9, + 0x39, 0xb9, 0x79, 0xf9, 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5, 0x15, + 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5, 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, + 0x6d, 0xed, 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd, 0x03, 0x83, 0x43, + 0xc3, 0x23, 0xa3, 0x63, 0xe3, 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3, + 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb, 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, + 0xbb, 0x7b, 0xfb, 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7, 0x17, 0x97, + 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7, 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, + 0xef, 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff +}; + +byte oddparity(const byte bt) +{ + return OddParity[bt]; +} + +void oddparity_bytes(const byte* pbtData, const ui32 uiLen, byte* pbtPar) +{ + ui32 uiByteNr; + + // Calculate the parity bits for the command + for (uiByteNr=0; uiByteNr>8)+((ui32N&0xFF000000)>>24)); +} + +ui64 swap_endian64(const void* pui64) +{ + ui64 ui64N = *((ui64*)pui64); + return (((ui64N&0xFF)<<56)+((ui64N&0xFF00)<<40)+((ui64N&0xFF0000)<<24)+((ui64N&0xFF000000)<<8)+((ui64N&0xFF00000000)>>8)+((ui64N&0xFF0000000000)>>24)+((ui64N&0xFF000000000000)>>40)+((ui64N&0xFF00000000000000)>>56)); +} + +void append_iso14443a_crc(byte* pbtData, ui32 uiLen) +{ + byte bt; + ui32 wCrc = 0x6363; + + do { + bt = *pbtData++; + bt = (bt^(byte)(wCrc & 0x00FF)); + bt = (bt^(bt<<4)); + wCrc = (wCrc >> 8)^((ui32)bt << 8)^((ui32)bt<<3)^((ui32)bt>>4); + } while (--uiLen); + + *pbtData++ = (byte) (wCrc & 0xFF); + *pbtData = (byte) ((wCrc >> 8) & 0xFF); +} + +void print_hex(const byte* pbtData, const ui32 uiLen) +{ + ui32 uiPos; + for (uiPos=0; uiPos < uiLen; uiPos++) + { + printf("%02x ",pbtData[uiPos]); + } + printf("\n"); +} + +void print_hex_par(const byte* pbtData, const ui32 uiBits, const byte* pbtDataPar) +{ + ui32 uiPos; + ui32 uiBytes = uiBits/8; + + for (uiPos=0; uiPos < uiBytes; uiPos++) + { + printf("%02x",pbtData[uiPos]); + if (OddParity[pbtData[uiPos]] != pbtDataPar[uiPos]) + { + printf("! "); + } else { + printf(" "); + } + } + + // Print the rest bits, these cannot have no parity bit + if (uiBits%8 != 0) + { + printf("%02x",pbtData[uiBytes]); + } + + printf("\n"); +} + diff --git a/bitutils.h b/bitutils.h new file mode 100644 index 0000000..e231678 --- /dev/null +++ b/bitutils.h @@ -0,0 +1,61 @@ +/* + +Public platform independent Near Field Communication (NFC) library +Copyright (C) 2009, Roel Verdult + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 3 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see . + +*/ + +#ifndef _LIBNFC_BITUTILS_H_ +#define _LIBNFC_BITUTILS_H_ + +#include "defines.h" + +#define INNER_XOR8(n) {\ + n ^= (n >> 4); \ + n ^= (n >> 2); \ + n ^= (n >> 1); \ + n &= 0x01; \ +} + +#define INNER_XOR32(n) {\ + n ^= (n >> 16); \ + n ^= (n >> 8); \ + INNER_XOR8(n); \ +} + +#define INNER_XOR64(n) {\ + n ^= (n >> 32); \ + INNER_XOR32(n); \ +} + +byte oddparity(const byte bt); +void oddparity_bytes(const byte* pbtData, const ui32 uiLen, byte* pbtPar); + +byte mirror(byte bt); +ui32 mirror32(ui32 ui32Bits); +ui64 mirror64(ui64 ui64Bits); +void mirror_bytes(byte *pbts, ui32 uiLen); + +ui32 swap_endian32(const void* pui32); +ui64 swap_endian64(const void* pui64); + +void append_iso14443a_crc(byte* pbtData, ui32 uiLen); + +void print_hex(const byte* pbtData, const ui32 uiLen); +void print_hex_par(const byte* pbtData, const ui32 uiBits, const byte* pbtDataPar); + +#endif // _LIBNFC_BITUTILS_H_ + diff --git a/defines.h b/defines.h new file mode 100644 index 0000000..99edc19 --- /dev/null +++ b/defines.h @@ -0,0 +1,45 @@ +/* + +Public platform independent Near Field Communication (NFC) library +Copyright (C) 2009, Roel Verdult + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 3 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see . + +*/ + +#ifndef _LIBNFC_DEFINES_H_ +#define _LIBNFC_DEFINES_H_ + +typedef unsigned char byte; +typedef unsigned char ui8; +typedef unsigned short ui16; +typedef unsigned int ui32; +typedef unsigned long long ui64; +typedef unsigned long ulong; +typedef char i8; +typedef short i16; +typedef int i32; + +#define null 0 + +typedef void* dev_id; // Device Id +#define INVALID_DEVICE_ID null +#define MAX_FRAME_LEN 264 + +#define min(a,b) (((a) < (b)) ? (a) : (b)) +#define max(a,b) (((a) > (b)) ? (a) : (b)) + +// #define _LIBNFC_VERBOSE_ + +#endif // _LIBNFC_DEFINES_H_ diff --git a/libnfc.c b/libnfc.c new file mode 100644 index 0000000..f832b28 --- /dev/null +++ b/libnfc.c @@ -0,0 +1,524 @@ +/* + +Public platform independent Near Field Communication (NFC) library +Copyright (C) 2009, Roel Verdult + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 3 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see . + +*/ + +#include +#include +#include "libnfc.h" +#include "acr122.h" +#include "bitutils.h" + +#define REG_CIU_TX_MODE 0x6302 +#define REG_CIU_RX_MODE 0x6303 +#define REG_CIU_TX_AUTO 0x6305 +#define REG_CIU_MANUAL_RCV 0x630D +#define REG_CIU_CONTROL 0x633C +#define REG_CIU_BIT_FRAMING 0x633D + +#define PARAM_NONE 0x00 +#define PARAM_NAD_USED 0x01 +#define PARAM_DID_USED 0x02 +#define PARAM_AUTO_ATR_RES 0x04 +#define PARAM_AUTO_RATS 0x10 +#define PARAM_14443_4_PICC 0x20 +#define PARAM_NO_AMBLE 0x40 + +// PN532 configuration +byte pncmd_get_firmware_version [ 2] = { 0xD4,0x02 }; +byte pncmd_get_general_status [ 2] = { 0xD4,0x04 }; +byte pncmd_get_register [ 4] = { 0xD4,0x06 }; +byte pncmd_set_register [ 5] = { 0xD4,0x08 }; +byte pncmd_set_parameters [ 3] = { 0xD4,0x12 }; + +// RF field configuration +byte pncmd_rf_configure_field [ 4] = { 0xD4,0x32,0x01 }; +byte pncmd_rf_configure_timing [ 4] = { 0xD4,0x32,0x02 }; +byte pncmd_rf_configure_retry_data [ 4] = { 0xD4,0x32,0x04 }; +byte pncmd_rf_configure_retry_select [ 6] = { 0xD4,0x32,0x05 }; + +// Reader +byte pncmd_reader_list_passive [264] = { 0xD4,0x4A }; +byte pncmd_reader_select [ 3] = { 0xD4,0x54 }; +byte pncmd_reader_deselect [ 3] = { 0xD4,0x44 }; +byte pncmd_reader_release [ 3] = { 0xD4,0x52 }; +byte pncmd_reader_set_baud_rate [ 5] = { 0xD4,0x4E }; +byte pncmd_reader_exchange_data [265] = { 0xD4,0x40 }; +byte pncmd_reader_auto_poll [ 5] = { 0xD4,0x60 }; + +// Target +byte pncmd_target_get_data [ 2] = { 0xD4,0x86 }; +byte pncmd_target_init [ 39] = { 0xD4,0x8C }; +byte pncmd_target_virtual_card [ 4] = { 0xD4,0x14 }; +byte pncmd_target_receive [ 2] = { 0xD4,0x88 }; +byte pncmd_target_send [264] = { 0xD4,0x90 }; +byte pncmd_target_get_status [ 2] = { 0xD4,0x8A }; + +// Exchange raw data frames +byte pncmd_exchange_raw_data [266] = { 0xD4,0x42 }; + +// Global buffers used for communication with the PN532 chip +#define MAX_FRAME_LEN 264 +static byte abtRx[MAX_FRAME_LEN]; +static ui32 uiRxLen; +static ui8 ui8Value; +static ui32 ui32Len = 1; + +bool pn532_transceive(const dev_id di, const byte* pbtTx, const ui32 uiTxLen) +{ + uiRxLen = MAX_FRAME_LEN; + return acr122_transceive(di,pbtTx,uiTxLen,abtRx,&uiRxLen); +} + +bool pn532_set_reg(const dev_id di, ui16 ui16Reg, ui8 ui8Value) +{ + pncmd_set_register[2] = ui16Reg >> 8; + pncmd_set_register[3] = ui16Reg & 0xff; + pncmd_set_register[4] = ui8Value; + return acr122_transceive(di,pncmd_set_register,5,null,null); +} + +byte pn532_get_reg(const dev_id di, ui16 ui16Reg) +{ + pncmd_get_register[2] = ui16Reg >> 8; + pncmd_get_register[3] = ui16Reg & 0xff; + acr122_transceive(di,pncmd_get_register,4,&ui8Value,&ui32Len); + return ui8Value; +} + +bool pn532_set_parameters(const dev_id di, ui8 ui8Value) +{ + pncmd_set_parameters[2] = ui8Value; + return acr122_transceive(di,pncmd_set_parameters,3,null,null); +} + +bool pn532_wrap_frame(const byte* pbtTx, const ui32 uiTxBits, const byte* pbtTxPar, byte* pbtFrame, ui32* puiFrameBits) +{ + byte btFrame; + byte btData; + ui32 uiBitPos; + ui32 uiDataPos = 0; + ui32 uiBitsLeft = uiTxBits; + + // Make sure we should frame at least something + if (uiBitsLeft == 0) return false; + + // Handle a short response (1byte) as a special case + if (uiBitsLeft < 9) + { + *pbtFrame = *pbtTx; + *puiFrameBits = uiTxBits; + return true; + } + + // We start by calculating the frame length in bits + *puiFrameBits = uiTxBits + (uiTxBits/8); + + // Parse the data bytes and add the parity bits + // This is really a sensitive process, mirror the frame bytes and append parity bits + // buffer = mirror(frame-byte) + parity + mirror(frame-byte) + parity + ... + // split "buffer" up in segments of 8 bits again and mirror them + // air-bytes = mirror(buffer-byte) + mirror(buffer-byte) + mirror(buffer-byte) + .. + while(true) + { + // Reset the temporary frame byte; + btFrame = 0; + + for (uiBitPos=0; uiBitPos<8; uiBitPos++) + { + // Copy as much data that fits in the frame byte + btData = mirror(pbtTx[uiDataPos]); + btFrame |= (btData >> uiBitPos); + // Save this frame byte + *pbtFrame = mirror(btFrame); + // Set the remaining bits of the date in the new frame byte and append the parity bit + btFrame = (btData << (8-uiBitPos)); + btFrame |= ((pbtTxPar[uiDataPos] & 0x01) << (7-uiBitPos)); + // Backup the frame bits we have so far + pbtFrame++; + *pbtFrame = mirror(btFrame); + // Increase the data (without parity bit) position + uiDataPos++; + // Test if we are done + if (uiBitsLeft < 9) return true; + uiBitsLeft -= 8; + } + // Every 8 data bytes we lose one frame byte to the parities + pbtFrame++; + } +} + +bool pn532_unwrap_frame(const byte* pbtFrame, const ui32 uiFrameBits, byte* pbtRx, ui32* puiRxBits, byte* pbtRxPar) +{ + byte btFrame; + byte btData; + ui8 uiBitPos; + ui32 uiDataPos = 0; + byte* pbtFramePos = (byte*) pbtFrame; + ui32 uiBitsLeft = uiFrameBits; + + // Make sure we should frame at least something + if (uiBitsLeft == 0) return false; + + // Handle a short response (1byte) as a special case + if (uiBitsLeft < 9) + { + *pbtRx = *pbtFrame; + *puiRxBits = uiFrameBits; + return true; + } + + // Calculate the data length in bits + *puiRxBits = uiFrameBits - (uiFrameBits/9); + + // Parse the frame bytes, remove the parity bits and store them in the parity array + // This process is the reverse of WrapFrame(), look there for more info + while(true) + { + for (uiBitPos=0; uiBitPos<8; uiBitPos++) + { + btFrame = mirror(pbtFramePos[uiDataPos]); + btData = (btFrame << uiBitPos); + btFrame = mirror(pbtFramePos[uiDataPos+1]); + btData |= (btFrame >> (8-uiBitPos)); + pbtRx[uiDataPos] = mirror(btData); + if(pbtRxPar != null) pbtRxPar[uiDataPos] = ((btFrame >> (7-uiBitPos)) & 0x01); + // Increase the data (without parity bit) position + uiDataPos++; + // Test if we are done + if (uiBitsLeft < 9) return true; + uiBitsLeft -= 9; + } + // Every 8 data bytes we lose one frame byte to the parities + pbtFramePos++; + } +} + +bool nfc_configure_handle_crc(const dev_id di, const bool bEnable) +{ + if (bEnable) + { + // Enable automatic receiving/sending of CRC bytes + if (!pn532_set_reg(di,REG_CIU_TX_MODE,pn532_get_reg(di,REG_CIU_TX_MODE) | 0x80)) return false; + if (!pn532_set_reg(di,REG_CIU_RX_MODE,pn532_get_reg(di,REG_CIU_RX_MODE) | 0x80)) return false; + } else { + // Disable automatic receiving/sending of CRC bytes + if (!pn532_set_reg(di,REG_CIU_TX_MODE,pn532_get_reg(di,REG_CIU_TX_MODE) & 0x7f)) return false; + if (!pn532_set_reg(di,REG_CIU_RX_MODE,pn532_get_reg(di,REG_CIU_RX_MODE) & 0x7f)) return false; + } + return true; +} + +bool nfc_configure_handle_parity(const dev_id di, const bool bEnable) +{ + if (bEnable) + { + // Handle parity by chip + if (!pn532_set_reg(di,REG_CIU_MANUAL_RCV,pn532_get_reg(di,REG_CIU_MANUAL_RCV) & 0xef)) return false; + + } else { + // Parse parity as data bit + if (!pn532_set_reg(di,REG_CIU_MANUAL_RCV,pn532_get_reg(di,REG_CIU_MANUAL_RCV) | 0x10)) return false; + } + return true; +} + +bool nfc_configure_field(const dev_id di, const bool bEnable) +{ + pncmd_rf_configure_field[3] = (bEnable) ? 1 : 0; + return acr122_transceive(di,pncmd_rf_configure_field,4,null,null); +} + +bool nfc_configure_list_passive_infinite(const dev_id di, const bool bEnable) +{ + // Retry format: 0x00 means only 1 try, 0xff means infinite + pncmd_rf_configure_retry_select[3] = (bEnable) ? 0xff : 0x00; // MxRtyATR, default: active = 0xff, passive = 0x02 + pncmd_rf_configure_retry_select[4] = (bEnable) ? 0xff : 0x00; // MxRtyPSL, default: 0x01 + pncmd_rf_configure_retry_select[5] = (bEnable) ? 0xff : 0x00; // MxRtyPassiveActivation, default: 0xff + return acr122_transceive(di,pncmd_rf_configure_retry_select,6,null,null); +} + +bool nfc_configure_accept_invalid_frames(const dev_id di, const bool bEnable) +{ + if (bEnable) + { + // Handle parity by chip + if (!pn532_set_reg(di,REG_CIU_RX_MODE,pn532_get_reg(di,REG_CIU_RX_MODE) | 0x08)) return false; + + } else { + // Parse parity as data bit + if (!pn532_set_reg(di,REG_CIU_RX_MODE,pn532_get_reg(di,REG_CIU_RX_MODE) | 0xf7)) return false; + } + return true; +} + +bool nfc_configure_accept_multiple_frames(const dev_id di, const bool bEnable) +{ + if (bEnable) + { + // Handle parity by chip + if (!pn532_set_reg(di,REG_CIU_RX_MODE,pn532_get_reg(di,REG_CIU_RX_MODE) | 0x04)) return false; + + } else { + // Parse parity as data bit + if (!pn532_set_reg(di,REG_CIU_RX_MODE,pn532_get_reg(di,REG_CIU_RX_MODE) | 0xfb)) return false; + } + return true; +} + +bool nfc_reader_init(const dev_id di) +{ + // Try to connect to the NFC reader + if (di == INVALID_DEVICE_ID) return INVALID_DEVICE_ID; + + // Let the PN5XX automatically be activated by the RF level detector + if (!pn532_set_reg(di,REG_CIU_TX_AUTO,pn532_get_reg(di,REG_CIU_TX_AUTO) | 0x40)) return false; + + // Configure the PN532 to be an Initiator or Reader/Writer + if (!pn532_set_reg(di,REG_CIU_CONTROL,pn532_get_reg(di,REG_CIU_CONTROL) | 0x10)) return false; + + return true; +} + +bool nfc_reader_list_passive(const dev_id di, const ModulationType mt, const byte* pbtInitData, const ui32 uiInitDataLen, byte* pbtTag, ui32* puiTagLen) +{ + pncmd_reader_list_passive[2] = 1; // MaxTg, we only want to select 1 tag at the time + pncmd_reader_list_passive[3] = mt; // BrTy, the type of modulation used for polling a passive tag + + // Set the optional initiator data (used for Felica, ISO14443B, Topaz Polling or selecting a specific UID). + if (pbtInitData) memcpy(pncmd_reader_list_passive+4,pbtInitData,uiInitDataLen); + + // Try to find the available tags + if (!acr122_transceive(di,pncmd_reader_list_passive,4+uiInitDataLen,pbtTag,puiTagLen)) return false; + + // Return true only if at least one tag has been found, the PN532 returns 0x00 if none was available + return (pbtTag[0] != 0x00); +} + +bool nfc_reader_transceive_7bits(const dev_id di, const byte btTx, byte* pbtRx, ui32* puiRxLen) +{ + // Set transmission bits to 7 + if (!pn532_set_reg(di,REG_CIU_BIT_FRAMING,7)) return false; + + pncmd_exchange_raw_data[2] = btTx; + if (!pn532_transceive(di,pncmd_exchange_raw_data,3)) return false; + + if (uiRxLen == 1 || abtRx[0] != 0) return false; + *puiRxLen = uiRxLen-1; + memcpy(pbtRx,abtRx+1,*puiRxLen); + + // Reset transmission bits count + if (!pn532_set_reg(di,REG_CIU_BIT_FRAMING,0)) return false; + + return true; +} + +bool nfc_reader_transceive_bytes(const dev_id di, const byte* pbtTx, const ui32 uiTxLen, byte* pbtRx, ui32* puiRxLen) +{ + memcpy(pncmd_exchange_raw_data+2,pbtTx,uiTxLen); + + if (!pn532_transceive(di,pncmd_exchange_raw_data,2+uiTxLen)) return false; + + if (uiRxLen == 1 || abtRx[0] != 0) return false; + *puiRxLen = uiRxLen-1; + memcpy(pbtRx,abtRx+1,*puiRxLen); + + return true; +} + +bool nfc_reader_transceive_bits(const dev_id di, const byte* pbtTx, const ui32 uiTxBits, const byte* pbtTxPar, byte* pbtRx, ui32* puiRxBits, byte* pbtRxPar) +{ + ui32 uiFrameBits = 0; + ui8 ui8Bits = 0; + + // Convert data to a frame + pn532_wrap_frame(pbtTx,uiTxBits,pbtTxPar,pncmd_exchange_raw_data+2,&uiFrameBits); + + // Retrieve the resting bits + ui8Bits = uiFrameBits%8; + + // Set the amount of transmission bits in the pn532 chip register + if (!pn532_set_reg(di,REG_CIU_BIT_FRAMING,ui8Bits)) return false; + + // Send the frame to the pn532 chip and get the answer + // We have to give the amount of bytes + 1 byte if there are leading bits + the two 0xD4,0x42 + if (!pn532_transceive(di,pncmd_exchange_raw_data,(uiFrameBits/8)+((ui8Bits==0)?0:1)+2)) return false; + + // Make sure there was no failure reported by the PN532 chip (0 == OK) + // TODO: is this ACR122 specific? + if (uiRxLen == 1 || abtRx[0] != 0) return false; + + // Get the last bit-count that is stored in the received byte + ui8Bits = pn532_get_reg(di,REG_CIU_CONTROL) & 0x07; + + // Unwrap the response frame + pn532_unwrap_frame(abtRx+1,((uiRxLen-1-((ui8Bits==0)?0:1))*8)+ui8Bits,pbtRx,puiRxBits,pbtRxPar); + + // Everything went successful + return true; +} + +bool nfc_reader_mifare_cmd(const dev_id di, const MifareCmd mc, const ui8 ui8Block, MifareParam* pmp) +{ + ui32 uiParamLen; + pncmd_reader_exchange_data[2] = 0x01; // Use first target/card + pncmd_reader_exchange_data[3] = mc; // The MIFARE Classic command + pncmd_reader_exchange_data[4] = ui8Block; // The block address (1K=0x00..0x39, 4K=0x00..0xff) + + switch (mc) + { + // Read and store command have no parameter + case MC_READ: + case MC_STORE: + uiParamLen = 0; + break; + + // Authenticate command + case MC_AUTH_A: + case MC_AUTH_B: + uiParamLen = sizeof(MifareParamAuth); + break; + + // Data command + case MC_WRITE: + uiParamLen = sizeof(MifareParamData); + break; + + // Value command + case MC_DECREMENT: + case MC_INCREMENT: + case MC_TRANSFER: + uiParamLen = sizeof(MifareParamValue); + break; + + // Please fix your code, you never should reach this statement + default: + return false; + break; + } + + // When available, copy the parameter bytes + if (uiParamLen) memcpy(pncmd_reader_exchange_data+5,(byte*)pmp,uiParamLen); + + // Fire the mifare command + if (!pn532_transceive(di,pncmd_reader_exchange_data,5+uiParamLen)) return false; + + // Make sure there was no failure reported by the PN532 chip (0 == OK) + // TODO: is this ACR122 specific? + if (abtRx[0] != 0) return false; + + // When we have executed a read command, copy the received bytes into the param + if (mc == MC_READ) memcpy(pmp->mpd.abtData,abtRx+1,16); + + // Command succesfully executed + return true; +} + +bool nfc_target_init(const dev_id di, byte* pbtRx, ui32* puiRxLen) +{ + // Clear the target init struct, reset to all zeros + memset(pncmd_target_init+2,0x00,37); + + // Set ATQA (SENS_RES) + pncmd_target_init[3] = 0x04; + pncmd_target_init[4] = 0x00; + + // Set SAK (SEL_RES) + pncmd_target_init[8] = 0x20; + + // Set UID + pncmd_target_init[5] = 0x00; + pncmd_target_init[6] = 0xb0; + pncmd_target_init[7] = 0x0b; + + // Enable CRC & parity, needed for target_init to work properly + nfc_configure_handle_crc(di,true); + nfc_configure_handle_parity(di,true); + + // Request the initialization as a target + if (!pn532_transceive(di,pncmd_target_init,39)) return false; + + if (uiRxLen == 1 || abtRx[0] != 0) return false; + *puiRxLen = uiRxLen-1; + memcpy(pbtRx,abtRx+1,*puiRxLen); + + return true; +} + +bool nfc_target_receive_bytes(const dev_id di, byte* pbtRx, ui32* puiRxLen) +{ + if (!pn532_transceive(di,pncmd_target_receive,2)) return false; + + if (uiRxLen == 1 || abtRx[0] != 0) return false; + *puiRxLen = uiRxLen-1; + memcpy(pbtRx,abtRx+1,*puiRxLen); + + return true; +} + +bool nfc_target_receive_bits(const dev_id di, byte* pbtRx, ui32* puiRxBits, byte* pbtRxPar) +{ + ui8 ui8Bits; + + // Try to gather the received frames from the reader + if (!pn532_transceive(di,pncmd_target_receive,2)) return false; + + // Make sure there was no failure reported by the PN532 chip (0 == OK) + // TODO: is this ACR122 specific? + if (uiRxLen == 1 || abtRx[0] != 0) return false; + + // Get the last bit-count that is stored in the received byte + ui8Bits = pn532_get_reg(di,REG_CIU_CONTROL) & 0x07; + + // Unwrap the response frame + pn532_unwrap_frame(abtRx+1,((uiRxLen-1-((ui8Bits==0)?0:1))*8)+ui8Bits,pbtRx,puiRxBits,pbtRxPar); + + return true; +} + +bool nfc_target_send_bytes(const dev_id di, const byte* pbtTx, const ui32 uiTxLen) +{ + memcpy(pncmd_target_send+2,pbtTx,uiTxLen); + return acr122_transceive(di,pncmd_target_send,2+uiTxLen,null,null); +} + +bool nfc_target_send_bits(const dev_id di, const byte* pbtTx, const ui32 uiTxBits, const byte* pbtTxPar) +{ + ui32 uiFrameBits = 0; + ui8 ui8Bits = 0; + + // Convert data to a frame + pn532_wrap_frame(pbtTx,uiTxBits,pbtTxPar,pncmd_target_send+2,&uiFrameBits); + + // Retrieve the resting bits + ui8Bits = uiFrameBits%8; + + // Set the amount of transmission bits in the pn532 chip register + if (!pn532_set_reg(di,REG_CIU_BIT_FRAMING,ui8Bits)) return false; + + // Try to send the bits to the reader + if (!pn532_transceive(di,pncmd_target_send,(uiFrameBits/8)+((ui8Bits==0)?0:1)+2)) return false; + + // Make sure there was no failure reported by the PN532 chip (0 == OK) + // TODO: is this ACR122 specific? + if (uiRxLen == 1 || abtRx[0] != 0) return false; + + // Everyting seems ok, return true + return true; +} + diff --git a/libnfc.h b/libnfc.h new file mode 100644 index 0000000..ba8802a --- /dev/null +++ b/libnfc.h @@ -0,0 +1,50 @@ +/* + +Public platform independent Near Field Communication (NFC) library +Copyright (C) 2009, Roel Verdult + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 3 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see . + +*/ + +#ifndef _LIBNFC_H_ +#define _LIBNFC_H_ + +#include "defines.h" +#include "types.h" +#include "bitutils.h" +#include "acr122.h" + +bool nfc_configure_handle_crc(const dev_id di, const bool bEnable); +bool nfc_configure_handle_parity(const dev_id di, const bool bEnable); +bool nfc_configure_field(const dev_id di, const bool bEnable); +bool nfc_configure_list_passive_infinite(const dev_id di, const bool bEnable); +bool nfc_configure_accept_invalid_frames(const dev_id di, const bool bEnable); +bool nfc_configure_accept_multiple_frames(const dev_id di, const bool bEnable); + +bool nfc_reader_init(const dev_id di); +bool nfc_reader_list_passive(const dev_id di, const ModulationType mt, const byte* pbtInitData, const ui32 uiInitDataLen, byte* pbtTag, ui32* puiTagLen); +bool nfc_reader_transceive_7bits(const dev_id di, const byte btTx, byte* pbtRx, ui32* puiRxLen); +bool nfc_reader_transceive_bytes(const dev_id di, const byte* pbtTx, const ui32 uiTxLen, byte* pbtRx, ui32* puiRxLen); +bool nfc_reader_transceive_bits(const dev_id di, const byte* pbtTx, const ui32 uiTxBits, const byte* pbtTxPar, byte* pbtRx, ui32* puiRxBits, byte* pbtRxPar); +bool nfc_reader_mifare_cmd(const dev_id di, const MifareCmd mc, const ui8 ui8Block, MifareParam* pmp); + +bool nfc_target_init(const dev_id di, byte* pbtRx, ui32* puiRxLen); +bool nfc_target_receive_bytes(const dev_id di, byte* pbtRx, ui32* puiRxLen); +bool nfc_target_receive_bits(const dev_id di, byte* pbtRx, ui32* puiRxBits, byte* pbtRxPar); +bool nfc_target_send_bytes(const dev_id di, const byte* pbtTx, const ui32 uiTxLen); +bool nfc_target_send_bits(const dev_id di, const byte* pbtTx, const ui32 uiTxBits, const byte* pbtTxPar); + +#endif // _LIBNFC_H_ + diff --git a/list.c b/list.c new file mode 100644 index 0000000..7cb111b --- /dev/null +++ b/list.c @@ -0,0 +1,83 @@ +/* + +Public platform independent Near Field Communication (NFC) library +Copyright (C) 2009, Roel Verdult + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 3 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see . + +*/ + +#include +#include +#include +#include "libnfc.h" + +static byte abtRecv[MAX_FRAME_LEN]; +static ui32 uiRecvLen; +static dev_id di; + +int main(int argc, const char* argv[]) +{ + // Try to open the NFC reader + di = acr122_connect(0); + + if (di == INVALID_DEVICE_ID) + { + printf("Error connecting NFC reader\n"); + return 1; + } + nfc_reader_init(di); + + // Let the reader only try once to find a tag + nfc_configure_list_passive_infinite(di,false); + + // Drop the field so the tag will be reset + nfc_configure_field(di,false); + + // Configure the communication channel + nfc_configure_handle_crc(di,true); + nfc_configure_handle_parity(di,true); + + printf("\nConnected to NFC reader\n\n"); + + uiRecvLen = MAX_FRAME_LEN; + if (nfc_reader_list_passive(di,MT_ISO14443A_106,null,null,abtRecv,&uiRecvLen)) + { + // ISO14443A tag info = ( tag_count[1], tag_nr[1], ATQA[2], SAK[1], uid_len[1], UID[uid_len], ats_len[1], ATS[ats_len-1] ) + // ATS is optional + printf("The following (NFC) ISO14443A tag was found:\n\n"); + printf("%17s","ATQA (SENS_RES): "); + print_hex(abtRecv+2,2); + printf("%17s","UID (NFCID1): "); + print_hex(abtRecv+6,abtRecv[5]); + printf("%17s","SAK (SEL_RES): "); + print_hex(abtRecv+4,1); + if (uiRecvLen > 6+(ui32)abtRecv[5]) + { + printf("%17s","ATS (ATR): "); + print_hex(abtRecv+6+abtRecv[5]+1,abtRecv[6+abtRecv[5]]-1); + } + } else { + printf("Error: no tag was found\n"); + } + + // Todo: listing the folllowing tags types + // + // MT_FELICA_212 + // MT_FELICA_424 + // MT_ISO14443B_106 + // MT_TOPAZ_106 + + return 0; +} diff --git a/mfread.c b/mfread.c new file mode 100644 index 0000000..ce0ad2f --- /dev/null +++ b/mfread.c @@ -0,0 +1,225 @@ +/* + +Public platform independent Near Field Communication (NFC) library +Copyright (C) 2009, Roel Verdult + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 3 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see . + +*/ + +#define _CRT_SECURE_NO_WARNINGS + +#include +#include +#include + +#include "libnfc.h" +#include "mifaretag.h" + +static byte abtRecv[MAX_FRAME_LEN]; +static ui32 uiRecvLen; +static dev_id di; +static MifareParam mp; +static MifareTag mtKeys; +static MifareTag mtDump; + +bool is_trailer_block(ui32 uiBlock) +{ + // Test if we are in the small or big sectors + if (uiBlock < 128) return ((uiBlock+1)%4 == 0); else return ((uiBlock+1)%16 == 0); +} + +ui32 get_trailer_block(ui32 uiSector) +{ + // Test if we are in the small or big sectors + if (uiSector<32) + { + return (uiSector*4)+3; + } else { + return 128+((uiSector-32)*16)+15; + } +} + +int main(int argc, const char* argv[]) +{ + bool b4K; + bool bKeyA; + byte* pbtUID; + bool bFailure; + i32 iBlock; + ui32 uiBlocks; + FILE* pfKeys; + FILE* pfDump; + MifareCmd mc; + + if (argc < 4) + { + printf("mfread \n"); + printf("\n"); + return 1; + } + + bKeyA = (*(argv[1]) == 'a'); + + pfKeys = fopen(argv[2],"rb"); + if (pfKeys == null) + { + printf("Could not open file: %s\n",argv[2]); + return 1; + } + fread(&mtKeys,1,sizeof(mtKeys),pfKeys); + fclose(pfKeys); + + pfDump = fopen(argv[3],"wb"); + if (pfKeys == null) + { + printf("Could not open file: %s\n",argv[3]); + return 1; + } + memset(&mtDump,0x00,sizeof(mtDump)); + printf("Succesful opened MIFARE dump files\n"); + + // Try to open the NFC reader + di = acr122_connect(0); + if (di == INVALID_DEVICE_ID) + { + printf("Error connecting NFC reader\n"); + return 1; + } + nfc_reader_init(di); + // Let the reader only try once to find a tag + nfc_configure_list_passive_infinite(di,false); + + // Drop the field so the tag will be reset + nfc_configure_field(di,false); + + // Configure the communication channel + nfc_configure_handle_crc(di,true); + nfc_configure_handle_parity(di,true); + printf("Connected to NFC reader\n"); + + // MIFARE Classic tag info = ( tag_count[1], tag_nr[1], ATQA[2], SAK[1], uid_len[1], UID[uid_len] ) + uiRecvLen = MAX_FRAME_LEN; + if (!nfc_reader_list_passive(di,MT_ISO14443A_106,null,null,abtRecv,&uiRecvLen)) + { + printf("Error: no tag was found\n"); + return 1; + } + + // Test if we are dealing with a MIFARE compatible tag + if ((abtRecv[4] & 0x08) == 0) + { + printf("Error: tag is not a MIFARE Classic card\n"); + return 1; + } + + // Get the info from the key dump + b4K = (mtKeys.blContent[0].bm.abtATQA[0] == 0x02); + pbtUID = mtKeys.blContent[0].bm.abtUID; + + // Compare if key dump UID is the same as the current tag UID + if (memcmp(abtRecv+6,pbtUID,4) != 0) + { + printf("Expected MIFARE Classic %cK card with uid: %08x\n",b4K?'4':'1',swap_endian32(pbtUID)); + } + + // Get the info from the current tag + pbtUID = abtRecv+6; + b4K = (abtRecv[3] == 0x02); + printf("Found MIFARE Classic %cK card with uid: %08x\n",b4K?'4':'1',swap_endian32(pbtUID)); + + uiBlocks = (b4K)?0xff:0x3f; + bFailure = false; + printf("Reading out %d blocks |",uiBlocks+1); + + // Read the card from end to begin + for (iBlock=uiBlocks; iBlock>=0; iBlock--) + { + // Authenticate everytime we reach a trailer block + if (is_trailer_block(iBlock)) + { + // Show if the readout went well + if (bFailure) + { + printf("x"); + // When a failure occured we need to redo the anti-collision + if (!nfc_reader_list_passive(di,MT_ISO14443A_106,null,null,abtRecv,&uiRecvLen)) + { + printf("!\nError: tag was removed\n"); + return 1; + } + bFailure = false; + } else { + // Skip this the first time, bFailure it means nothing (yet) + if (iBlock != uiBlocks) + { + printf("."); + } + } + fflush(stdout); + + // Set the authentication information (uid) + memcpy(mp.mpa.abtUid,abtRecv+6,4); + + // Determin if we should use the a or the b key + if (bKeyA) + { + mc = MC_AUTH_A; + memcpy(mp.mpa.abtKey,mtKeys.blContent[iBlock].bt.abtKeyA,6); + } else { + mc = MC_AUTH_B; + memcpy(mp.mpa.abtKey,mtKeys.blContent[iBlock].bt.abtKeyB,6); + } + + // Try to authenticate for the current sector + if (!nfc_reader_mifare_cmd(di,MC_AUTH_A,iBlock,&mp)) + { + printf("!\nError: authentication failed for block %02x\n",iBlock); + return 1; + } + + // Try to read out the trailer + if (nfc_reader_mifare_cmd(di,MC_READ,iBlock,&mp)) + { + // Copy the keys over from our key dump and store the retrieved access bits + memcpy(mtDump.blContent[iBlock].bd.abtContent,mtKeys.blContent[iBlock].bt.abtKeyA,6); + memcpy(mtDump.blContent[iBlock].bt.abtAccessBits,mp.mpd.abtData+6,4); + memcpy(mtDump.blContent[iBlock].bd.abtContent+10,mtKeys.blContent[iBlock].bt.abtKeyB,6); + } + } else { + // Make sure a earlier readout did not fail + if (!bFailure) + { + // Try to read out the data block + if (nfc_reader_mifare_cmd(di,MC_READ,iBlock,&mp)) + { + memcpy(mtDump.blContent[iBlock].bd.abtContent,mp.mpd.abtData,16); + } else { + bFailure = true; + } + } + } + } + printf("%c|\n",(bFailure)?'x':'.'); + fflush(stdout); + + printf("Writing dump to file: %s\n",argv[3]); + fflush(stdout); + fwrite(&mtDump,1,sizeof(mtDump),pfDump); + fclose(pfKeys); + + printf("Done, all data is dumped!\n"); + + return 0; +} diff --git a/mfwrite.c b/mfwrite.c new file mode 100644 index 0000000..82e44af --- /dev/null +++ b/mfwrite.c @@ -0,0 +1,232 @@ +/* + +Public platform independent Near Field Communication (NFC) library +Copyright (C) 2009, Roel Verdult + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 3 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see . + +*/ + +#define _CRT_SECURE_NO_WARNINGS + +#include +#include +#include + +#include "libnfc.h" +#include "mifaretag.h" + +static byte abtRecv[MAX_FRAME_LEN]; +static ui32 uiRecvLen; +static dev_id di; +static MifareParam mp; +static MifareTag mtKeys; +static MifareTag mtDump; + +bool is_first_block(ui32 uiBlock) +{ + // Test if we are in the small or big sectors + if (uiBlock < 128) return ((uiBlock)%4 == 0); else return ((uiBlock)%16 == 0); +} + +bool is_trailer_block(ui32 uiBlock) +{ + // Test if we are in the small or big sectors + if (uiBlock < 128) return ((uiBlock+1)%4 == 0); else return ((uiBlock+1)%16 == 0); +} + +ui32 get_trailer_block(ui32 uiFirstBlock) +{ + // Test if we are in the small or big sectors + if (uiFirstBlock<128) return uiFirstBlock+3; else return uiFirstBlock+15; +} + +int main(int argc, const char* argv[]) +{ + bool b4K; + bool bKeyA; + byte* pbtUID; + bool bFailure; + ui32 uiBlock; + ui32 uiBlocks; + ui32 uiTrailerBlock; + FILE* pfKeys; + FILE* pfDump; + MifareCmd mc; + + if (argc < 4) + { + printf("mfwrite \n"); + printf("\n"); + return 1; + } + + bKeyA = (*(argv[1]) == 'a'); + + pfKeys = fopen(argv[2],"rb"); + if (pfKeys == null) + { + printf("Could not open file: %s\n",argv[2]); + return 1; + } + fread(&mtKeys,1,sizeof(mtKeys),pfKeys); + fclose(pfKeys); + + pfDump = fopen(argv[3],"rb"); + if (pfKeys == null) + { + printf("Could not open file: %s\n",argv[3]); + return 1; + } + fread(&mtDump,1,sizeof(mtDump),pfDump); + fclose(pfDump); + printf("Succesful opened MIFARE dump files\n"); + + // Try to open the NFC reader + di = acr122_connect(0); + if (di == INVALID_DEVICE_ID) + { + printf("Error connecting NFC reader\n"); + return 1; + } + nfc_reader_init(di); + // Let the reader only try once to find a tag + nfc_configure_list_passive_infinite(di,false); + + // Drop the field so the tag will be reset + nfc_configure_field(di,false); + + // Configure the communication channel + nfc_configure_handle_crc(di,true); + nfc_configure_handle_parity(di,true); + printf("Connected to NFC reader\n"); + + // MIFARE Classic tag info = ( tag_count[1], tag_nr[1], ATQA[2], SAK[1], uid_len[1], UID[uid_len] ) + uiRecvLen = MAX_FRAME_LEN; + if (!nfc_reader_list_passive(di,MT_ISO14443A_106,null,null,abtRecv,&uiRecvLen)) + { + printf("Error: no tag was found\n"); + return 1; + } + + // Test if we are dealing with a MIFARE compatible tag + if ((abtRecv[4] & 0x08) == 0) + { + printf("Error: tag is not a MIFARE Classic card\n"); + return 1; + } + + // Get the info from the key dump + b4K = (mtKeys.blContent[0].bm.abtATQA[0] == 0x02); + pbtUID = mtKeys.blContent[0].bm.abtUID; + + // Compare if key dump UID is the same as the current tag UID + if (memcmp(abtRecv+6,pbtUID,4) != 0) + { + printf("Expected MIFARE Classic %cK card with uid: %08x\n",b4K?'4':'1',swap_endian32(pbtUID)); + } + + // Get the info from the current tag + pbtUID = abtRecv+6; + b4K = (abtRecv[3] == 0x02); + printf("Found MIFARE Classic %cK card with uid: %08x\n",b4K?'4':'1',swap_endian32(pbtUID)); + + uiBlocks = (b4K)?0xff:0x3f; + bFailure = false; + printf("Writing %d blocks |",uiBlocks+1); + + // Write the card from begin to end; + for (uiBlock=0; uiBlock<=uiBlocks; uiBlock++) + { + // Authenticate everytime we reach the first sector of a new block + if (is_first_block(uiBlock)) + { + // Show if the readout went well + if (bFailure) + { + printf("x"); + // When a failure occured we need to redo the anti-collision + if (!nfc_reader_list_passive(di,MT_ISO14443A_106,null,null,abtRecv,&uiRecvLen)) + { + printf("!\nError: tag was removed\n"); + return 1; + } + bFailure = false; + } else { + // Skip this the first time, bFailure it means nothing (yet) + if (uiBlock != 0) + { + printf("."); + } + } + fflush(stdout); + + // Locate the trailer (with the keys) used for this sector + uiTrailerBlock = get_trailer_block(uiBlock); + + // Set the authentication information (uid) + memcpy(mp.mpa.abtUid,abtRecv+6,4); + + // Determin if we should use the a or the b key + if (bKeyA) + { + mc = MC_AUTH_A; + memcpy(mp.mpa.abtKey,mtKeys.blContent[uiTrailerBlock].bt.abtKeyA,6); + } else { + mc = MC_AUTH_B; + memcpy(mp.mpa.abtKey,mtKeys.blContent[uiTrailerBlock].bt.abtKeyB,6); + } + + // Try to authenticate for the current sector + if (!nfc_reader_mifare_cmd(di,mc,uiBlock,&mp)) + { + printf("!\nError: authentication failed for block %02x\n",uiBlock); + return 1; + } + } + + if (is_trailer_block(uiBlock)) + { + // Copy the keys over from our key dump and store the retrieved access bits + memcpy(mp.mpd.abtData,mtDump.blContent[uiBlock].bt.abtKeyA,6); + memcpy(mp.mpd.abtData+6,mtDump.blContent[uiBlock].bt.abtAccessBits,4); + memcpy(mp.mpd.abtData+10,mtDump.blContent[uiBlock].bt.abtKeyB,6); + + // Try to write the trailer + nfc_reader_mifare_cmd(di,MC_WRITE,uiBlock,&mp); + + } else { + + // The first block 0x00 is read only, skip this + if (uiBlock == 0) continue; + + // Make sure a earlier write did not fail + if (!bFailure) + { + // Try to write the data block + memcpy(mp.mpd.abtData,mtDump.blContent[uiBlock].bd.abtContent,16); + if (!nfc_reader_mifare_cmd(di,MC_WRITE,uiBlock,&mp)) + { + bFailure = true; + } + } + } + } + printf("%c|\n",(bFailure)?'x':'.'); + fflush(stdout); + + printf("Done, all data is written!\n"); + + return 0; +} diff --git a/mifaretag.h b/mifaretag.h new file mode 100644 index 0000000..f6bc772 --- /dev/null +++ b/mifaretag.h @@ -0,0 +1,54 @@ +/* + +Public platform independent Near Field Communication (NFC) library +Copyright (C) 2009, Roel Verdult + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 3 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see . + +*/ + +#ifndef _MIFARE_TAG_H_ +#define _MIFARE_TAG_H_ + +#include "defines.h" + +typedef struct tagBlockManufacturer { + byte abtUID[4]; + byte btBCC; + byte btUnknown; + byte abtATQA[2]; + byte abtUnknown[8]; +} BlockManufacturer; + +typedef struct tagBlockData { + byte abtContent[16]; +} BlockData; + +typedef struct tagBlockTrailer { + byte abtKeyA[6]; + byte abtAccessBits[4]; + byte abtKeyB[6]; +} BlockTrailer; + +typedef union tagBlock { + BlockManufacturer bm; + BlockData bd; + BlockTrailer bt; +} Block; + +typedef struct tagMifareTag { + Block blContent[256]; +} MifareTag; + +#endif // _MIFARE_TAG_H_ diff --git a/relay.c b/relay.c new file mode 100644 index 0000000..f6295bd --- /dev/null +++ b/relay.c @@ -0,0 +1,107 @@ +/* + +Public platform independent Near Field Communication (NFC) library +Copyright (C) 2009, Roel Verdult + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 3 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see . + +*/ + +#include +#include +#include +#include "libnfc.h" + +static byte abtReaderRecv[MAX_FRAME_LEN]; +static byte abtReaderRecvPar[MAX_FRAME_LEN]; +static ui32 uiReaderRecvBits; +static byte abtTagRecv[MAX_FRAME_LEN]; +static byte abtTagRecvPar[MAX_FRAME_LEN]; +static ui32 uiTagRecvBits; +static dev_id diReader; +static dev_id diTag; + +int main(int argc, const char* argv[]) +{ + // Try to open the NFC reader + diReader = acr122_connect(0); + if (diReader == INVALID_DEVICE_ID) + { + printf("Error connecting first NFC reader\n"); + return 1; + } + + diTag = acr122_connect(1); + if (diTag == INVALID_DEVICE_ID) + { + printf("Error connecting second NFC reader\n"); + return 1; + } + + printf("\n"); + printf("[+] Connected to the both NFC readers\n"); + acr122_led_red(diTag,true); + printf("[+] Identified simulated tag by setting the red light\n"); + printf("[+] Place both readers on top of each other\n"); + printf("[+] Please run 'anticol' tool in a different shell\n"); + nfc_target_init(diTag,abtReaderRecv,&uiReaderRecvBits); + nfc_configure_handle_crc(diTag,false); + nfc_configure_handle_parity(diTag,false); + nfc_configure_accept_invalid_frames(diTag,true); + printf("[+] Thank you, the simulated tag is initialized\n"); + + printf("[+] Attaching to first NFC reader \n"); + // Retry until it becomes ready + while (!nfc_reader_init(diReader)) + { + acr122_disconnect(diReader); + printf("error\n"); + diReader = acr122_connect(0); + } + nfc_configure_handle_crc(diReader,false); + nfc_configure_handle_parity(diReader,false); + nfc_configure_accept_invalid_frames(diReader,true); + printf("[+] Done, relaying frames now!\n\n"); + + while(true) + { + // Test if we received a frame from the reader + if (nfc_target_receive_bits(diTag,abtReaderRecv,&uiReaderRecvBits,abtReaderRecvPar)) + { + // Drop down the field before sending a REQA command and start a new session + if (uiReaderRecvBits == 7 && abtReaderRecv[0] == 0x26) + { + // Drop down field for a very short time (tag will reboot) + nfc_configure_field(diReader,false); + printf("\n"); + nfc_configure_field(diReader,true); + } + + // Print the reader frame to the screen + printf("R: "); + print_hex_par(abtReaderRecv,uiReaderRecvBits,abtReaderRecvPar); + + // Forward the frame to the original tag + if (nfc_reader_transceive_bits(diReader,abtReaderRecv,uiReaderRecvBits,abtReaderRecvPar,abtTagRecv,&uiTagRecvBits,abtTagRecvPar)) + { + // Redirect the answer back to the reader + nfc_target_send_bits(diTag,abtTagRecv,uiTagRecvBits,abtTagRecvPar); + + // Print the tag frame to the screen + printf("T: "); + print_hex_par(abtTagRecv,uiTagRecvBits,abtTagRecvPar); + } + } + } +} diff --git a/simulate.c b/simulate.c new file mode 100644 index 0000000..ad522a1 --- /dev/null +++ b/simulate.c @@ -0,0 +1,108 @@ +/* + +Public platform independent Near Field Communication (NFC) library +Copyright (C) 2009, Roel Verdult + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 3 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see . + +*/ + +#include +#include +#include +#include "libnfc.h" + +static byte abtRecv[MAX_FRAME_LEN]; +static ui32 uiRecvLen; +static dev_id di; + +// ISO14443A Anti-Collision response +byte abtAtqa [2] = { 0x04,0x00 }; +byte abtUidBcc [5] = { 0xDE,0xAD,0xBE,0xAF,0x62 }; +byte abtSak [9] = { 0x08,0xb6,0xdd }; + +int main(int argc, const char* argv[]) +{ + byte* pbtTx; + ui32 uiTxLen; + + // Try to open the NFC reader + di = acr122_connect(0); + + if (di == INVALID_DEVICE_ID) + { + printf("Error connecting NFC reader\n"); + return 1; + } + + printf("\n"); + printf("[+] Connected to NFC target\n"); + acr122_led_red(di,true); + printf("[+] Identified simulated tag by setting the red light\n"); + printf("[+] First we have to come out auto-simulation\n"); + printf("[+] To do this, please send any command after the\n"); + printf("[+] anti-collision, for example, the RATS command\n\n"); + nfc_target_init(di,abtRecv,&uiRecvLen); + printf("[+] Initiator command: "); + print_hex(abtRecv,uiRecvLen); + printf("[+] Configuring communication"); + nfc_configure_accept_invalid_frames(di,true); + nfc_configure_handle_crc(di,false); + printf("[+] Done, the simulated tag is initialized \n"); + + + while(true) + { + // Test if we received a frame + if (nfc_target_receive_bytes(di,abtRecv,&uiRecvLen)) + { + // Prepare the command to send back for the anti-collision request + switch(uiRecvLen) + { + case 1: // Request or Wakeup + pbtTx = abtAtqa; + uiTxLen = 2; + // New anti-collsion session started + printf("\n"); + break; + + case 2: // Select All + pbtTx = abtUidBcc; + uiTxLen = 5; + break; + + case 9: // Select Tag + pbtTx = abtSak; + uiTxLen = 3; + break; + + default: // unknown length? + uiTxLen = 0; + break; + } + + printf("R: "); + print_hex(abtRecv,uiRecvLen); + + // Test if we know how to respond + if(uiTxLen) + { + // Send and print the command to the screen + nfc_target_send_bytes(di,pbtTx,uiTxLen); + printf("T: "); + print_hex(pbtTx,uiTxLen); + } + } + } +} diff --git a/types.h b/types.h new file mode 100644 index 0000000..cba978e --- /dev/null +++ b/types.h @@ -0,0 +1,69 @@ +/* + +Public platform independent Near Field Communication (NFC) library +Copyright (C) 2009, Roel Verdult + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 3 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see . + +*/ + +#ifndef _LIBNFC_TYPES_H_ +#define _LIBNFC_TYPES_H_ + +#include "defines.h" + +typedef enum { + false = 0x00, + true = 0x01 +}bool; + +typedef enum { + MT_ISO14443A_106 = 0x00, + MT_FELICA_212 = 0x01, + MT_FELICA_424 = 0x02, + MT_ISO14443B_106 = 0x03, + MT_TOPAZ_106 = 0x04, +}ModulationType; + +typedef enum { + MC_AUTH_A = 0x60, + MC_AUTH_B = 0x61, + MC_READ = 0x30, + MC_WRITE = 0xA0, + MC_TRANSFER = 0xB0, + MC_DECREMENT = 0xC0, + MC_INCREMENT = 0xC1, + MC_STORE = 0xC2, +}MifareCmd; + +typedef struct { + byte abtKey[6]; + byte abtUid[4]; +}MifareParamAuth; + +typedef struct { + byte abtData[16]; +}MifareParamData; + +typedef struct { + byte abtValue[4]; +}MifareParamValue; + +typedef union { + MifareParamAuth mpa; + MifareParamData mpd; + MifareParamValue mpv; +}MifareParam; + +#endif // _LIBNFC_TYPES_H_ diff --git a/win32/WINSCARD.LIB b/win32/WINSCARD.LIB new file mode 100644 index 0000000000000000000000000000000000000000..0e423edf18647f2a4eeb59dd76e77431f2788118 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nfc_configure_list_passive_infinite + nfc_configure_accept_invalid_frames + nfc_configure_accept_multiple_frames + nfc_reader_init + nfc_reader_transceive_7bits + nfc_reader_transceive_bytes + nfc_reader_transceive_bits + nfc_reader_list_passive + nfc_reader_mifare_cmd + nfc_target_init + nfc_target_receive_bytes + nfc_target_receive_bits + nfc_target_send_bytes + nfc_target_send_bits + + ; bitutils.c + oddparity + oddparity_bytes + mirror + mirror32 + mirror64 + mirror_bytes + swap_endian32 + swap_endian64 + append_iso14443a_crc + print_hex + print_hex_par + + \ No newline at end of file diff --git a/win32/libnfc.sln b/win32/libnfc.sln new file mode 100644 index 0000000..674c726 --- /dev/null +++ b/win32/libnfc.sln @@ -0,0 +1,74 @@ + +Microsoft Visual Studio Solution File, Format Version 9.00 +# Visual Studio 2005 +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libnfc", "libnfc.vcproj", "{AAEEDA5F-F86F-452D-BFA3-53B1C00B8884}" +EndProject +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "anticol", "anticol.vcproj", "{71722DBB-4253-4D68-A29C-AA159360FCE4}" + ProjectSection(ProjectDependencies) = postProject + {AAEEDA5F-F86F-452D-BFA3-53B1C00B8884} = {AAEEDA5F-F86F-452D-BFA3-53B1C00B8884} + EndProjectSection +EndProject +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "simulate", "simulate.vcproj", "{9F813EB4-8F43-4E58-8C62-8E43D9AC137D}" + ProjectSection(ProjectDependencies) = postProject + {AAEEDA5F-F86F-452D-BFA3-53B1C00B8884} = {AAEEDA5F-F86F-452D-BFA3-53B1C00B8884} + EndProjectSection +EndProject +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "relay", "relay.vcproj", "{9CC505F9-AE58-4827-8921-A59E7C4839FE}" + ProjectSection(ProjectDependencies) = postProject + {AAEEDA5F-F86F-452D-BFA3-53B1C00B8884} = {AAEEDA5F-F86F-452D-BFA3-53B1C00B8884} + EndProjectSection +EndProject +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "list", "list.vcproj", "{ADB1806A-745E-4DB4-9CDC-51658A5061E1}" + ProjectSection(ProjectDependencies) = postProject + {AAEEDA5F-F86F-452D-BFA3-53B1C00B8884} = {AAEEDA5F-F86F-452D-BFA3-53B1C00B8884} + EndProjectSection +EndProject +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "mfread", "mfread.vcproj", "{BB0A837B-DAEF-4B3F-AF5B-9A757A97FFF3}" + ProjectSection(ProjectDependencies) = postProject + {AAEEDA5F-F86F-452D-BFA3-53B1C00B8884} = {AAEEDA5F-F86F-452D-BFA3-53B1C00B8884} + EndProjectSection +EndProject +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "mfwrite", "mfwrite.vcproj", "{77907F3D-BA6E-4A7F-AF9D-4F60C0A79952}" + ProjectSection(ProjectDependencies) = postProject + {AAEEDA5F-F86F-452D-BFA3-53B1C00B8884} = {AAEEDA5F-F86F-452D-BFA3-53B1C00B8884} + EndProjectSection +EndProject +Global + GlobalSection(SolutionConfigurationPlatforms) = preSolution + Debug|Win32 = Debug|Win32 + Release|Win32 = Release|Win32 + EndGlobalSection + GlobalSection(ProjectConfigurationPlatforms) = postSolution + {AAEEDA5F-F86F-452D-BFA3-53B1C00B8884}.Debug|Win32.ActiveCfg = Debug|Win32 + {AAEEDA5F-F86F-452D-BFA3-53B1C00B8884}.Debug|Win32.Build.0 = Debug|Win32 + {AAEEDA5F-F86F-452D-BFA3-53B1C00B8884}.Release|Win32.ActiveCfg = Release|Win32 + {AAEEDA5F-F86F-452D-BFA3-53B1C00B8884}.Release|Win32.Build.0 = Release|Win32 + {71722DBB-4253-4D68-A29C-AA159360FCE4}.Debug|Win32.ActiveCfg = Debug|Win32 + {71722DBB-4253-4D68-A29C-AA159360FCE4}.Debug|Win32.Build.0 = Debug|Win32 + {71722DBB-4253-4D68-A29C-AA159360FCE4}.Release|Win32.ActiveCfg = Release|Win32 + {71722DBB-4253-4D68-A29C-AA159360FCE4}.Release|Win32.Build.0 = Release|Win32 + {9F813EB4-8F43-4E58-8C62-8E43D9AC137D}.Debug|Win32.ActiveCfg = Debug|Win32 + {9F813EB4-8F43-4E58-8C62-8E43D9AC137D}.Debug|Win32.Build.0 = Debug|Win32 + {9F813EB4-8F43-4E58-8C62-8E43D9AC137D}.Release|Win32.ActiveCfg = Release|Win32 + {9F813EB4-8F43-4E58-8C62-8E43D9AC137D}.Release|Win32.Build.0 = Release|Win32 + {9CC505F9-AE58-4827-8921-A59E7C4839FE}.Debug|Win32.ActiveCfg = Debug|Win32 + {9CC505F9-AE58-4827-8921-A59E7C4839FE}.Debug|Win32.Build.0 = Debug|Win32 + {9CC505F9-AE58-4827-8921-A59E7C4839FE}.Release|Win32.ActiveCfg = Release|Win32 + {9CC505F9-AE58-4827-8921-A59E7C4839FE}.Release|Win32.Build.0 = Release|Win32 + {ADB1806A-745E-4DB4-9CDC-51658A5061E1}.Debug|Win32.ActiveCfg = Debug|Win32 + {ADB1806A-745E-4DB4-9CDC-51658A5061E1}.Debug|Win32.Build.0 = Debug|Win32 + {ADB1806A-745E-4DB4-9CDC-51658A5061E1}.Release|Win32.ActiveCfg = Release|Win32 + {ADB1806A-745E-4DB4-9CDC-51658A5061E1}.Release|Win32.Build.0 = Release|Win32 + {BB0A837B-DAEF-4B3F-AF5B-9A757A97FFF3}.Debug|Win32.ActiveCfg = Debug|Win32 + {BB0A837B-DAEF-4B3F-AF5B-9A757A97FFF3}.Debug|Win32.Build.0 = Debug|Win32 + {BB0A837B-DAEF-4B3F-AF5B-9A757A97FFF3}.Release|Win32.ActiveCfg = Release|Win32 + {BB0A837B-DAEF-4B3F-AF5B-9A757A97FFF3}.Release|Win32.Build.0 = Release|Win32 + {77907F3D-BA6E-4A7F-AF9D-4F60C0A79952}.Debug|Win32.ActiveCfg = Debug|Win32 + 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