From 310b7a57bc03db660874eed67b049a910de369fd Mon Sep 17 00:00:00 2001
From: Christian Hesse <mail@eworm.de>
Date: Mon, 29 Dec 2014 19:33:09 +0100
Subject: introduce config.h

We now have configuration in just one place.
---
 .gitignore       |  1 +
 Makefile         | 13 ++++++++++---
 bin/Makefile     |  4 ++--
 bin/ykfde-cpio.c |  5 +----
 bin/ykfde.c      |  8 ++------
 config.def.h     | 32 ++++++++++++++++++++++++++++++++
 udev/Makefile    |  2 +-
 udev/ykfde.c     |  7 ++-----
 8 files changed, 51 insertions(+), 21 deletions(-)
 create mode 100644 config.def.h

diff --git a/.gitignore b/.gitignore
index 4809ce2..f18ac78 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
+config.h
 README.html
 bin/ykfde
 bin/ykfde-cpio
diff --git a/Makefile b/Makefile
index 60904a9..81b7412 100644
--- a/Makefile
+++ b/Makefile
@@ -2,18 +2,25 @@
 INSTALL := install
 MD	:= markdown
 RM	:= rm
+CP	:= cp
 # this is just a fallback in case you do not use git but downloaded
 # a release tarball...
 VERSION := 0.5.0
 
-all: bin/ykfde udev/ykfde README.html
+all: bin/ykfde bin/ykfde-cpio udev/ykfde README.html
 
-bin/ykfde: bin/ykfde.c
+bin/ykfde: bin/ykfde.c config.h
 	$(MAKE) -C bin
 
-udev/ykfde: udev/ykfde.c
+bin/ykfde-cpio: bin/ykfde-cpio.c config.h
+	$(MAKE) -C bin
+
+udev/ykfde: udev/ykfde.c config.h
 	$(MAKE) -C udev
 
+config.h: config.def.h
+	$(CP) config.def.h config.h
+
 README.html: README.md
 	$(MD) README.md > README.html
 
diff --git a/bin/Makefile b/bin/Makefile
index 4fcd6fb..6e77de8 100644
--- a/bin/Makefile
+++ b/bin/Makefile
@@ -7,10 +7,10 @@ CFLAGS	+= -std=c11 -O2 -fpic -pie -Wall -Werror
 
 all: ykfde ykfde-cpio
 
-ykfde: ykfde.c
+ykfde: ykfde.c ../config.h
 	$(CC) $(CFLAGS) -lykpers-1 -lyubikey -liniparser -lcryptsetup $(LDFLAGS) -o ykfde ykfde.c
 
-ykfde-cpio: ykfde-cpio.c
+ykfde-cpio: ykfde-cpio.c ../config.h
 	$(CC) $(CFLAGS) -larchive $(LDFLAGS) -o ykfde-cpio ykfde-cpio.c
 
 install: ykfde ykfde-cpio
diff --git a/bin/ykfde-cpio.c b/bin/ykfde-cpio.c
index ca6f61b..3122a1f 100644
--- a/bin/ykfde-cpio.c
+++ b/bin/ykfde-cpio.c
@@ -22,10 +22,7 @@
 #include <archive.h>
 #include <archive_entry.h>
 
-#define CONFIGFILE      "/etc/ykfde.conf"
-#define CHALLENGEDIR    "/etc/ykfde.d/"
-#define CPIOFILE	"/boot/ykfde-challenges.img"
-#define CPIOTMPFILE	CPIOFILE "-XXXXXX"
+#include "../config.h"
 
 int add_dir(struct archive *archive, const char * path) {
 	struct stat st;
diff --git a/bin/ykfde.c b/bin/ykfde.c
index 77bb86b..30a4665 100644
--- a/bin/ykfde.c
+++ b/bin/ykfde.c
@@ -27,18 +27,14 @@
 
 #include <libcryptsetup.h>
 
+#include "../config.h"
+
 /* challenge is 64 byte,
  * HMAC-SHA1 response is 40 byte */
 #define CHALLENGELEN	64
 #define RESPONSELEN	SHA1_MAX_BLOCK_SIZE
 #define PASSPHRASELEN	SHA1_DIGEST_SIZE * 2
 
-#define	CONFIGFILE	"/etc/ykfde.conf"
-#define CHALLENGEDIR	"/etc/ykfde.d/"
-#define CONFYKSLOT	"yk slot"
-#define CONFLUKSSLOT	"luks slot"
-#define CONFDEVNAME	"device name"
-
 int main(int argc, char **argv) {
 	char challenge_old[CHALLENGELEN + 1],
 		challenge_new[CHALLENGELEN + 1],
diff --git a/config.def.h b/config.def.h
new file mode 100644
index 0000000..1fafba2
--- /dev/null
+++ b/config.def.h
@@ -0,0 +1,32 @@
+/*
+ * (C) 2014 by Christian Hesse <mail@eworm.de>
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ */
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+
+/* path to the configuration file */
+#define	CONFIGFILE	"/etc/ykfde.conf"
+
+/* path to challenge files
+ * make sure this is an absolute path with trailing slash */
+#define CHALLENGEDIR	"/etc/ykfde.d/"
+
+/* config file device name */
+#define CONFDEVNAME	"device name"
+/* config file Yubikey slot */
+#define CONFYKSLOT	"yk slot"
+/* config file LUKS slot */
+#define CONFLUKSSLOT	"luks slot"
+
+/* path to cpio archive (initramfs image) */
+#define CPIOFILE	"/boot/ykfde-challenges.img"
+/* path to temporary cpio archive (initramfs image) */
+#define CPIOTMPFILE	CPIOFILE "-XXXXXX"
+
+#endif /* _CONFIG_H */
+
+// vim: set syntax=c:
diff --git a/udev/Makefile b/udev/Makefile
index b8ddc84..7821b8e 100644
--- a/udev/Makefile
+++ b/udev/Makefile
@@ -7,7 +7,7 @@ CFLAGS	+= -std=c11 -O2 -fpic -pie -Wall -Werror
 
 all: ykfde
 
-ykfde: ykfde.c
+ykfde: ykfde.c ../config.h
 	$(CC) $(CFLAGS) -lykpers-1 -lyubikey -liniparser $(LDFLAGS) -o ykfde ykfde.c
 
 install: ykfde
diff --git a/udev/ykfde.c b/udev/ykfde.c
index 2adedbb..c96d84e 100644
--- a/udev/ykfde.c
+++ b/udev/ykfde.c
@@ -34,6 +34,8 @@
 
 #include <iniparser.h>
 
+#include "../config.h"
+
 #define EVENT_SIZE	(sizeof (struct inotify_event))
 #define EVENT_BUF_LEN	(1024 * (EVENT_SIZE + 16))
 
@@ -44,11 +46,6 @@
 #define ASK_PATH	"/run/systemd/ask-password/"
 #define ASK_MESSAGE	"Please enter passphrase for disk"
 
-#define	CONFIGFILE	"/etc/ykfde.conf"
-#define CHALLENGEDIR	"/etc/ykfde.d/"
-
-#define CONFYKSLOT	"yk slot"
-
 static int send_on_socket(int fd, const char *socket_name, const void *packet, size_t size) {
         union {
                 struct sockaddr sa;
-- 
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