Initial commit

sde1000 · sde1000 · commit 1b4a932022e6 · 2014-01-06T12:42:49.000Z
Tested on Ubuntu 13.10
diff --git a/.gitignore b/.gitignore
@@ -0,0 +1,3 @@
+*.o
+*~
+quicktill-nfc-bridge
diff --git a/85-quicktill-nfc-bridge.rules b/85-quicktill-nfc-bridge.rules
@@ -0,0 +1 @@
+SUBSYSTEM=="usb", ACTION=="add", ATTRS{idVendor}=="072f", ATTRS{idProduct}=="2200", RUN+="/lib/quicktill-nfc-bridge/start-quicktill-nfc-bridge.sh" # ACR122U
diff --git a/LICENSE b/LICENSE
diff --git a/Makefile b/Makefile
@@ -0,0 +1,28 @@
+.PHONY: all clean install
+
+libnfcdir=../libnfc-1.7.0
+
+# Places to install to
+libdir=lib/quicktill-nfc-bridge/
+udevruledir=lib/udev/rules.d/
+
+CFLAGS:=-Wall -I$(libnfcdir)/include/
+LDFLAGS:=-L $(libnfcdir)/
+
+all:	quicktill-nfc-bridge
+
+clean:
+	rm -f quicktill-nfc-bridge quicktill-nfc-bridge.o
+
+install:	all
+	install -d $(DESTDIR)/$(libdir)
+	install -d $(DESTDIR)/$(udevruledir)
+	install -d $(DESTDIR)/etc/modprobe.d/
+	install -s quicktill-nfc-bridge $(DESTDIR)/$(libdir)
+	install start-quicktill-nfc-bridge.sh $(DESTDIR)/$(libdir)
+	install 85-quicktill-nfc-bridge.rules $(DESTDIR)/$(udevruledir)
+	install blacklist-quicktill.conf $(DESTDIR)/etc/modprobe.d/
+
+quicktill-nfc-bridge:	quicktill-nfc-bridge.o
+	gcc -o quicktill-nfc-bridge quicktill-nfc-bridge.o \
+	$(libnfcdir)/libnfc/.libs/libnfc.a -lusb
diff --git a/README.md b/README.md
@@ -0,0 +1,49 @@
+quicktill-nfc-bridge
+====================
+
+This is a quick and dirty interface between libnfc and quicktill, to
+convert NFC card taps on an ACR122U NFC reader into user tokens
+delivered as UDP packets to localhost:8455.  It's intended for use
+with Ubuntu 12.04, but might work with later versions as well.
+
+Copying
+-------
+
+quicktill-nfc-bridge is Copyright (C) 2014 Stephen Early <sde@individualpubs.co.uk>
+
+It is distributed 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 [this
+link](http://www.gnu.org/licenses/).
+
+Building
+--------
+
+Start with this repository as the current working directory.  Download
+libnfc-1.7.0 from
+[code.google.com](https://code.google.com/p/libnfc/downloads/detail?name=libnfc-1.7.0.tar.bz2),
+extract it in the parent directory of this repository and build it:
+
+    cd ..
+    wget https://libnfc.googlecode.com/files/libnfc-1.7.0.tar.bz2
+    tar xjf libnfc-1.7.0.tar.bz2
+    cd libnfc-1.7.0/
+    ./configure
+    make
+
+To build quicktill-nfc-bridge, start with this repository as the
+current working directory:
+
+    make
+
+To build the Debian package:
+
+    fakeroot debian/rules binary
diff --git a/blacklist-quicktill.conf b/blacklist-quicktill.conf
@@ -0,0 +1,3 @@
+# Ubuntu >12.04 has kernel support for pn533-based NFC readers.  We
+# want to use user-space support, so blacklist the kernel driver.
+blacklist pn533
diff --git a/debian/changelog b/debian/changelog
@@ -0,0 +1,5 @@
+quicktill-nfc-bridge (1.0) unstable; urgency=low
+
+  * Initial Release.
+
+ -- Stephen Early <sde@individualpubs.co.uk>  Mon, 06 Jan 2014 12:05:16 +0000
diff --git a/debian/compat b/debian/compat
@@ -0,0 +1 @@
+8
diff --git a/debian/control b/debian/control
@@ -0,0 +1,15 @@
+Source: quicktill-nfc-bridge
+Section: unknown
+Priority: extra
+Maintainer: Stephen Early <sde@individualpubs.co.uk>
+Build-Depends: debhelper (>= 8.0.0)
+Standards-Version: 3.9.4
+Homepage: https://github.com/sde1000/quicktill-nfc-bridge
+
+Package: quicktill-nfc-bridge
+Architecture: any
+Depends: ${shlibs:Depends}, ${misc:Depends}
+Description: Convert NFC card taps to quicktill user tokens
+ quicktill-nfc-bridge converts NFC card taps on an ACR122U NFC card
+ reader into quicktill user tokens delivered as UDP packets to
+ localhost:8455.
diff --git a/debian/copyright b/debian/copyright
@@ -0,0 +1,28 @@
+Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
+Upstream-Name: quicktill-nfc-bridge
+Source: https://github.com/sde1000/quicktill-nfc-bridge
+
+Files: *
+Copyright: 2014 Stephen Early <sde@individualpubs.co.uk>
+License: GPL-3.0+
+
+Files: debian/*
+Copyright: 2014 Stephen Early <sde@individualpubs.co.uk>
+License: GPL-3.0+
+
+License: GPL-3.0+
+ 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 package 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 <http://www.gnu.org/licenses/>.
+ .
+ On Debian systems, the complete text of the GNU General
+ Public License version 3 can be found in "/usr/share/common-licenses/GPL-3".
diff --git a/debian/docs b/debian/docs
@@ -0,0 +1 @@
+README.md
diff --git a/debian/rules b/debian/rules
@@ -0,0 +1,13 @@
+#!/usr/bin/make -f
+# -*- makefile -*-
+# Sample debian/rules that uses debhelper.
+# This file was originally written by Joey Hess and Craig Small.
+# As a special exception, when this file is copied by dh-make into a
+# dh-make output file, you may use that output file without restriction.
+# This special exception was added by Craig Small in version 0.37 of dh-make.
+
+# Uncomment this to turn on verbose mode.
+#export DH_VERBOSE=1
+
+%:
+	dh $@ 
diff --git a/debian/source/format b/debian/source/format
@@ -0,0 +1 @@
+3.0 (native)
diff --git a/quicktill-nfc-bridge.c b/quicktill-nfc-bridge.c
@@ -0,0 +1,101 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <nfc/nfc.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+
+static void
+sprint_hex(char *buf,size_t buflen,
+	   const uint8_t *pbtData, const size_t szBytes)
+{
+  size_t szPos;
+ 
+  for (szPos = 0; szPos < szBytes; szPos++) {
+    snprintf(buf,buflen,"%02x", pbtData[szPos]);
+    buf=buf+2;
+    buflen=buflen-2;
+  }
+  buf[0]=0;
+}
+
+int
+main(int argc, const char *argv[])
+{
+  nfc_device *pnd;
+  nfc_target nt[10];
+  int u;
+  struct sockaddr_in addr,dest;
+  int count,i;
+  char buf[1024];
+  char *b;
+
+  nfc_context *context;
+
+  nfc_init(&context);
+  if (context == NULL) {
+    fprintf(stderr,"Unable to init libnfc (malloc)\n");
+    exit(EXIT_FAILURE);
+  }
+
+  pnd = nfc_open(context, NULL);
+ 
+  if (pnd == NULL) {
+    fprintf(stderr,"ERROR: Unable to open NFC device.\n");
+    exit(EXIT_FAILURE);
+  }
+
+  if (nfc_initiator_init(pnd) < 0) {
+    nfc_perror(pnd, "nfc_initiator_init");
+    exit(EXIT_FAILURE);
+  }
+ 
+#if 0
+  printf("NFC reader: %s opened\n", nfc_device_get_name(pnd));
+#endif /* 0 */
+
+  if ((u=socket(AF_INET, SOCK_DGRAM, 0))<0) {
+    perror("cannot create socket");
+    exit(EXIT_FAILURE);
+  }
+
+  memset(&addr,0,sizeof(addr));
+  addr.sin_family=AF_INET;
+  addr.sin_addr.s_addr=htonl(INADDR_ANY);
+  addr.sin_port=htons(0);
+  if (bind(u,(struct sockaddr *)&addr,sizeof(addr))<0) {
+    perror("bind failed");
+    exit(EXIT_FAILURE);
+  }
+
+  memset(&dest,0,sizeof(dest));
+  dest.sin_family=AF_INET;
+  dest.sin_addr.s_addr=htonl(0x7f000001);
+  dest.sin_port=htons(8455);
+
+  const nfc_modulation nmMifare = {
+    .nmt = NMT_ISO14443A,
+    .nbr = NBR_106,
+  };
+  count=1;
+  while (count>=0) {
+    count=nfc_initiator_list_passive_targets(pnd, nmMifare, nt, 10);
+    if (count>0) {
+      for (i=0; i<count; i++) {
+	b=buf;
+	strcpy(b,"nfc:");
+	b=b+4;
+	sprint_hex(b,sizeof(buf)-4,
+		   nt[i].nti.nai.abtUid, nt[i].nti.nai.szUidLen);
+	sendto(u,buf,strlen(buf),0,(struct sockaddr *)&dest,sizeof(dest));
+      }
+    }
+    usleep(125000);
+  }
+
+  nfc_close(pnd);
+  nfc_exit(context);
+  exit(EXIT_SUCCESS);
+}
diff --git a/start-quicktill-nfc-bridge.sh b/start-quicktill-nfc-bridge.sh
@@ -0,0 +1,7 @@
+#!/bin/bash
+
+set -e
+
+if [ "${ACTION}" = "add" ]; then
+  /lib/quicktill-nfc-bridge/quicktill-nfc-bridge &
+fi

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	`+*.o`
	`2`	`+*~`
	`3`	`+quicktill-nfc-bridge`
Original file line number	Diff line number	Diff line change
`@@ -0,0 +1 @@`
	`1`	`+SUBSYSTEM=="usb", ACTION=="add", ATTRS{idVendor}=="072f", ATTRS{idProduct}=="2200", RUN+="/lib/quicktill-nfc-bridge/start-quicktill-nfc-bridge.sh" # ACR122U`
Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	`+# Ubuntu >12.04 has kernel support for pn533-based NFC readers. We`
	`2`	`+# want to use user-space support, so blacklist the kernel driver.`
	`3`	`+blacklist pn533`