snowflake: add package

Package Tor's Snowflake system components so users can offer e.g.
a standalone Snowflake proxy on their routers or other devices.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry picked from commit cf120a7eff)
Signed-off-by: Nick Hainke <vincent@systemli.org>

net/snowflake/Makefile

@@ -0,0 +1,144 @@
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=snowflake
+PKG_VERSION:=2.3.0
+PKG_RELEASE:=1
+
+PKG_SOURCE_PROTO:=git
+PKG_SOURCE_URL=https://git.torproject.org/pluggable-transports/snowflake.git
+PKG_SOURCE_VERSION:=v$(PKG_VERSION)
+PKG_MIRROR_HASH:=e323598c959ea336927bf8dc4a96b02e88de73cb8cf165221465ca2b76cd2c48
+
+PKG_LICENSE:=BSD-3-Clause
+PKG_LICENSE_FILES:=LICENSE
+PKG_MAINTAINER:=Daniel Golle <daniel@makrotopia.org>, Nick Hainke <vincent@systemli.org>
+
+PKG_BUILD_DEPENDS:=golang/host
+PKG_BUILD_PARALLEL:=1
+PKG_USE_MIPS16:=0
+
+GO_PKG:=git.torproject.org/pluggable-transports/snowflake.git/v2
+
+include $(INCLUDE_DIR)/package.mk
+include ../../lang/golang/golang-package.mk
+
+define Package/snowflake/Default
+  TITLE:=Snowflake
+  URL:=https://snowflake.torproject.org/
+  DEPENDS:=$(GO_ARCH_DEPENDS)
+  SECTION:=net
+  CATEGORY:=Network
+  USERID:=snowflake:snowflake
+endef
+
+define Package/snowflake-broker
+$(call Package/snowflake/Default)
+  TITLE+= Broker
+endef
+
+define Package/snowflake-client
+$(call Package/snowflake/Default)
+  TITLE+= Client
+endef
+
+define Package/snowflake-distinctcounter
+$(call Package/snowflake/Default)
+  TITLE+= Distinct Counter
+endef
+
+define Package/snowflake-probetest
+$(call Package/snowflake/Default)
+  TITLE+= Probe test
+endef
+
+define Package/snowflake-proxy
+$(call Package/snowflake/Default)
+  TITLE+= Proxy
+endef
+
+define Package/snowflake-server
+$(call Package/snowflake/Default)
+  TITLE+= Server
+endef
+
+define Package/snowflake/description/Default
+Snowflake is a system that allows people from all over the world to
+access censored websites and applications. Similar to how VPNs assist
+users in getting around Internet censorship, Snowflake helps you avoid
+being noticed by Internet censors by making your Internet activity appear
+as though you're using the Internet for a regular video or voice call.
+endef
+
+define Package/snowflake-broker/description
+$(call Package/snowflake/description/Default)
+
+This package provides the Snowflake broker service.
+endef
+
+define Package/snowflake-client/description
+$(call Package/snowflake/description/Default)
+
+This package contains the Snowflake client which provides the bridge to TOR.
+endef
+
+define Package/snowflake-distinctcounter/description
+$(call Package/snowflake/description/Default)
+
+This package provides the Snowflake distinct counter service.
+endef
+
+define Package/snowflake-probetest/description
+$(call Package/snowflake/description/Default)
+
+This package provides the Snowflake probe test.
+endef
+
+define Package/snowflake-proxy/description
+$(call Package/snowflake/description/Default)
+
+This package provides the standalone Snowflake proxy.
+endef
+
+define Package/snowflake-server/description
+$(call Package/snowflake/description/Default)
+
+This package provides the Snowflake server.
+endef
+
+define Package/snowflake-broker/install
+	$(INSTALL_DIR) $(1)/usr/bin
+	$(INSTALL_BIN) $(GO_PKG_BUILD_BIN_DIR)/broker $(1)/usr/bin/snowflake-broker
+endef
+
+define Package/snowflake-client/install
+	$(INSTALL_DIR) $(1)/usr/bin
+	$(INSTALL_BIN) $(GO_PKG_BUILD_BIN_DIR)/client $(1)/usr/bin/snowflake-client
+endef
+
+define Package/snowflake-distinctcounter/install
+	$(INSTALL_DIR) $(1)/usr/bin
+	$(INSTALL_BIN) $(GO_PKG_BUILD_BIN_DIR)/distinctcounter $(1)/usr/bin/snowflake-distinctcounter
+endef
+
+define Package/snowflake-probetest/install
+	$(INSTALL_DIR) $(1)/usr/bin
+	$(INSTALL_BIN) $(GO_PKG_BUILD_BIN_DIR)/probetest $(1)/usr/bin/snowflake-probetest
+endef
+
+define Package/snowflake-proxy/install
+	$(INSTALL_DIR) $(1)/usr/bin $(1)/etc/init.d
+	$(INSTALL_BIN) $(GO_PKG_BUILD_BIN_DIR)/proxy $(1)/usr/bin/snowflake-proxy
+	$(INSTALL_BIN) ./files/snowflake-proxy.init $(1)/etc/init.d/snowflake-proxy
+endef
+
+define Package/snowflake-server/install
+	$(INSTALL_DIR) $(1)/usr/bin
+	$(INSTALL_BIN) $(GO_PKG_BUILD_BIN_DIR)/server $(1)/usr/bin/snowflake-server
+endef
+
+$(eval $(call BuildPackage,snowflake-broker))
+$(eval $(call BuildPackage,snowflake-client))
+$(eval $(call BuildPackage,snowflake-distinctcounter))
+$(eval $(call BuildPackage,snowflake-probetest))
+$(eval $(call BuildPackage,snowflake-proxy))
+$(eval $(call BuildPackage,snowflake-server))

net/snowflake/files/snowflake-proxy.init

@@ -0,0 +1,18 @@
+#!/bin/sh /etc/rc.common
+
+START=99
+
+USE_PROCD=1
+NAME=snowflake-proxy
+PROG=/usr/bin/$NAME
+
+start_service() {
+	procd_open_instance
+	procd_set_param command "$PROG" -verbose
+	procd_set_param stdout 1
+	procd_set_param stderr 1
+	procd_set_param user snowflake
+	procd_set_param group snowflake
+	procd_set_param respawn
+	procd_close_instance
+}