package/gocryptfs: new package

Adds the gocryptfs encrypted FUSE filesystem.

Currently uses without_openssl build tag, to use the native Go cryptography.
However, the package could be improved by conditionally enabling openssl if it
is also configured to be built by Buildroot.

Signed-off-by: Christian Stewart <christian@paral.in>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

DEVELOPERS

@@ -531,6 +531,7 @@ F:	package/docker-proxy/
 F:	package/embiggen-disk/
 F:	package/fuse-overlayfs/
 F:	package/go/
+F:	package/gocryptfs/
 F:	package/mbpfan/
 F:	package/mosh/
 F:	package/pkg-golang.mk

package/Config.in

@@ -221,6 +221,7 @@ menu "Filesystem and flash utilities"
 	source "package/genext2fs/Config.in"
 	source "package/genpart/Config.in"
 	source "package/genromfs/Config.in"
+	source "package/gocryptfs/Config.in"
 	source "package/imx-usb-loader/Config.in"
 	source "package/mmc-utils/Config.in"
 	source "package/mtd/Config.in"

package/gocryptfs/Config.in

@@ -0,0 +1,12 @@
+config BR2_PACKAGE_GOCRYPTFS
+	bool "gocryptfs"
+	depends on BR2_PACKAGE_HOST_GO_TARGET_ARCH_SUPPORTS
+	depends on BR2_TOOLCHAIN_HAS_THREADS
+	help
+	  gocryptfs is an encrypted FUSE overlay filesystem.
+
+	  https://github.com/rfjakob/gocryptfs
+
+comment "gocryptfs needs a toolchain w/ threads"
+	depends on BR2_PACKAGE_HOST_GO_TARGET_ARCH_SUPPORTS
+	depends on !BR2_TOOLCHAIN_HAS_THREADS

package/gocryptfs/gocryptfs.hash

@@ -0,0 +1,3 @@
+# Locally computed
+sha256  4d89b76fe0b0c7218099f6f0ea6c1c87efe13927d95579a6ede82f20b6dbe48a  gocryptfs-2.2.0.tar.gz
+sha256  322a7e3b02cf18e38b7e6b18cafefb773df8676c65634b34e8a2beb931294a4b  LICENSE

package/gocryptfs/gocryptfs.mk

@@ -0,0 +1,19 @@
+################################################################################
+#
+# gocryptfs
+#
+################################################################################
+
+GOCRYPTFS_VERSION = 2.2.0
+GOCRYPTFS_SITE = $(call github,rfjakob,gocryptfs,v$(GOCRYPTFS_VERSION))
+GOCRYPTFS_LICENSE = MIT
+GOCRYPTFS_LICENSE_FILES = LICENSE
+
+GOCRYPTFS_GOMOD = github.com/rfjakob/gocryptfs/v2
+
+GOCRYPTFS_LDFLAGS = \
+	-X main.GitVersion=$(GOCRYPTFS_VERSION) \
+	-X main.GitVersionFuse=[vendored]
+GOCRYPTFS_TAGS = without_openssl
+
+$(eval $(golang-package))