libports: add fuse-exfat

Fixes #942.

libports/lib/import/import-libexfat.mk

@@ -0,0 +1 @@
+REP_INC_DIR += include/exfat

libports/lib/mk/libc_fuse_exfat.mk

@@ -0,0 +1,12 @@
+include $(REP_DIR)/ports/exfat.inc
+EXFAT_DIR = $(REP_DIR)/contrib/$(EXFAT)
+
+SRC_C  = $(notdir $(EXFAT_DIR)/fuse/main.c)
+SRC_CC = init.cc
+
+LIBS   = libc libc_block libc_fuse libfuse libexfat
+
+vpath %.c $(EXFAT_DIR)/fuse
+vpath %.cc $(REP_DIR)/src/lib/exfat
+
+SHARED_LIB = yes

libports/lib/mk/libexfat.mk

@@ -0,0 +1,16 @@
+include $(REP_DIR)/ports/exfat.inc
+EXFAT_DIR = $(REP_DIR)/contrib/$(EXFAT)
+
+#FILTER_OUT = win32_io.c
+#SRC_C = $(filter-out $(FILTER_OUT),$(notdir $(wildcard $(EXFAT_DIR)/libexfat/*.c)))
+
+SRC_C = $(notdir $(wildcard $(EXFAT_DIR)/libexfat/*.c))
+
+INC_DIR += $(REP_DIR)/include/exfat \
+           $(EXFAT_DIR)/libexfat
+
+#CC_OPT += -DHAVE_CONFIG_H -DRECORD_LOCKING_NOT_IMPLEMENTED
+
+LIBS += libc
+
+vpath %.c $(EXFAT_DIR)/libexfat

libports/ports/exfat.inc

@@ -0,0 +1,2 @@
+EXFAT_VERSION = 1.0.1
+EXFAT         = fuse-exfat-$(EXFAT_VERSION)

libports/ports/exfat.mk

@@ -0,0 +1,35 @@
+include ports/exfat.inc
+
+EXFAT_TGZ      = $(EXFAT).tar.gz
+EXFAT_BASE_URL = https://exfat.googlecode.com/files
+EXFAT_URL      = $(EXFAT_BASE_URL)/$(EXFAT_TGZ)
+
+#
+# Interface to top-level prepare Makefile
+#
+PORTS += exfat
+
+prepare-exfat: $(CONTRIB_DIR)/$(EXFAT) include/exfat
+
+#
+# Port-specific local rules
+#
+$(DOWNLOAD_DIR)/$(EXFAT_TGZ):
+	$(VERBOSE)wget -c -P $(DOWNLOAD_DIR) $(EXFAT_URL) && touch $@
+
+$(CONTRIB_DIR)/$(EXFAT): $(DOWNLOAD_DIR)/$(EXFAT_TGZ)
+	$(VERBOSE)tar xfz $< -C $(CONTRIB_DIR) && touch $@
+	$(VERBOSE)patch -N -p0 < src/lib/exfat/main.c.patch
+
+#
+# Install exfat headers
+#
+
+include/exfat:
+	$(VERBOSE)mkdir -p $@
+	$(VERBOSE)for i in `find $(CONTRIB_DIR)/$(EXFAT)/libexfat -name *.h`; do \
+		ln -fs ../../$$i $@; done
+
+clean-exfat:
+	$(VERBOSE)rm -rf include/exfat
+	$(VERBOSE)rm -rf $(CONTRIB_DIR)/$(EXFAT)

libports/run/libc_fuse_exfat.run

@@ -0,0 +1,5 @@
+set mkfs_cmd   mkfs.exfat
+set mkfs_opts  ""
+set filesystem fuse_exfat
+
+source ${genode_dir}/libports/run/libc_filesystem_test.inc

libports/src/lib/exfat/init.cc

@@ -0,0 +1,53 @@
+/*
+ * \brief   libc_fuse_exfat
+ * \author  Josef Soentgen
+ * \date    2013-11-11
+ */
+
+/*
+ * Copyright (C) 2013 Genode Labs GmbH
+ *
+ * This file is part of the Genode OS framework, which is distributed
+ * under the terms of the GNU General Public License version 2.
+ */
+
+/* Genode includes */
+#include <base/printf.h>
+
+#include <fuse_private.h>
+
+extern "C" {
+
+#include <exfat.h>
+
+extern struct fuse_operations fuse_exfat_ops;
+
+struct fuse_chan *fc;
+struct fuse      *fh;
+
+struct exfat ef;
+
+}
+
+void Fuse::init_fs(void)
+{
+	PLOG("libc_fuse_exfat: try to mount /dev/blkdev...");
+
+	int err = exfat_mount(&ef, "/dev/blkdev", "");
+	if (err) {
+		PERR("libc_fuse_exfat: could not mount /dev/blkdev");
+		return;
+	}
+
+	fh = fuse_new(fc, NULL, &fuse_exfat_ops, sizeof (struct fuse_operations), NULL);
+	if (fh == 0) {
+		PERR("libc_fuse_exfat: fuse_new() failed");
+		return;
+	}
+}
+
+void Fuse::deinit_fs(void)
+{
+	PLOG("libc_fuse_exfat: umount /dev/blkdev...");
+	exfat_unmount(&ef);
+}

libports/src/lib/exfat/main.c.patch

@@ -0,0 +1,26 @@
+Make fuse_operation struct globally accessible and comment-out
+main() function.
+--- contrib/fuse-exfat-1.0.1/fuse/main.c.orig	2013-11-11 14:34:42.668119109 +0100
++++ contrib/fuse-exfat-1.0.1/fuse/main.c	2013-11-11 14:36:25.728122089 +0100
+@@ -296,7 +296,7 @@
+ 	exit(1);
+ }
+ 
+-static struct fuse_operations fuse_exfat_ops =
++struct fuse_operations fuse_exfat_ops =
+ {
+ 	.getattr	= fuse_exfat_getattr,
+ 	.truncate	= fuse_exfat_truncate,
+@@ -403,6 +403,7 @@
+ 	return options;
+ }
+ 
++#if 0
+ int main(int argc, char* argv[])
+ {
+ 	struct fuse_args mount_args = FUSE_ARGS_INIT(0, NULL);
+@@ -550,3 +551,4 @@
+ 	fuse_destroy(fh);
+ 	return 0;
+ }
++#endif

libports/src/test/libc_fuse_exfat/target.mk

@@ -0,0 +1,5 @@
+TARGET   = test-libc_fuse_exfat
+LIBS     = libc libc_log libc_fuse_exfat
+SRC_CC   = main.cc
+
+vpath %.cc $(PRG_DIR)/../libc_ffat/

libports/src/test/libports/libexfat/target.mk

@@ -0,0 +1,5 @@
+TARGET = test-libexfat
+LIBS   = libc libexfat
+SRC_CC = main.cc
+
+vpath main.cc $(PRG_DIR)/..