libsodium: add package, version 0.7.0

Signed-off-by: Damiano Renfer <damiano.renfer@gmail.com>

libs/libsodium/Makefile

@@ -0,0 +1,64 @@
+#
+# Copyright (C) 2009-2014 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=libsodium
+PKG_VERSION:=0.7.0
+PKG_RELEASE:=1
+
+PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION)
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
+PKG_SOURCE_URL:=https://download.libsodium.org/libsodium/releases
+PKG_MD5SUM:=b9029bf810c4b5a8acc3afec1286a36a
+PKG_CAT:=zcat
+
+PKG_FIXUP:=libtool autoreconf
+PKG_USE_MIPS16:=0
+PKG_INSTALL:=1
+
+PKG_MAINTAINER:=Damiano Renfer <damiano.renfer@gmail.com>
+PKG_LICENSE:=ISC
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/libsodium
+  SECTION:=libs
+  CATEGORY:=Libraries
+  DEFAULT:=y
+  TITLE:=P(ortable|ackageable) NaCl-based crypto library
+  URL:=https://github.com/jedisct1/libsodium
+  MAINTAINER:=Damiano Renfer <damiano.renfer@gmail.com>
+endef
+
+define Package/libsodium/description
+  NaCl (pronounced "salt") is a new easy-to-use high-speed software library for network communication, encryption, decryption, signatures, etc.
+  NaCl's goal is to provide all of the core operations needed to build higher-level cryptographic tools.
+  Sodium is a portable, cross-compilable, installable, packageable fork of NaCl (based on the latest released upstream version nacl-20110221), with a compatible API.
+  The design choices, particularly in regard to the Curve25519 Diffie-Hellman function, emphasize security (whereas NIST curves emphasize "performance" at the cost of security), and "magic constants" in NaCl/Sodium have clear rationales.
+  The same cannot be said of NIST curves, where the specific origins of certain constants are not described by the standards.
+  And despite the emphasis on higher security, primitives are faster across-the-board than most implementations of the NIST standards.
+endef
+
+define Build/Configure
+  $(call Build/Configure/Default, --disable-ssp)
+endef
+
+define Build/InstallDev
+	$(INSTALL_DIR) $(1)/usr/include/sodium
+	$(CP) $(PKG_INSTALL_DIR)/usr/include/sodium.h $(1)/usr/include
+	$(CP) $(PKG_INSTALL_DIR)/usr/include/sodium/*.h $(1)/usr/include/sodium
+	$(INSTALL_DIR) $(1)/usr/lib
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libsodium.{a,so*} $(1)/usr/lib
+endef
+
+define Package/libsodium/install
+	$(INSTALL_DIR) $(1)/usr/lib
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libsodium.so.* $(1)/usr/lib/
+endef
+
+$(eval $(call BuildPackage,libsodium))