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#
# Copyright (C) 2006-2020 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
include $(TOPDIR)/rules.mk
PKG_NAME:=dropbear
PKG_VERSION:=2020.81
PKG_RELEASE:=1
PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
PKG_SOURCE_URL:= \
http://matt.ucc.asn.au/dropbear/releases/ \
https://dropbear.nl/mirror/releases/
PKG_HASH:=48235d10b37775dbda59341ac0c4b239b82ad6318c31568b985730c788aac53b
PKG_LICENSE:=MIT
PKG_LICENSE_FILES:=LICENSE libtomcrypt/LICENSE libtommath/LICENSE
PKG_CPE_ID:=cpe:/a:matt_johnston:dropbear_ssh_server
PKG_BUILD_PARALLEL:=1
PKG_ASLR_PIE_REGULAR:=1
PKG_USE_MIPS16:=0
PKG_FIXUP:=autoreconf
PKG_FLAGS:=nonshared
PKG_CONFIG_DEPENDS:= \
CONFIG_TARGET_INIT_PATH CONFIG_DROPBEAR_ECC CONFIG_DROPBEAR_ECC_FULL \
CONFIG_DROPBEAR_CURVE25519 CONFIG_DROPBEAR_ZLIB \
CONFIG_DROPBEAR_ED25519 CONFIG_DROPBEAR_CHACHA20POLY1305 \
CONFIG_DROPBEAR_UTMP CONFIG_DROPBEAR_PUTUTLINE \
CONFIG_DROPBEAR_DBCLIENT CONFIG_DROPBEAR_SCP
include $(INCLUDE_DIR)/package.mk
ifneq ($(DUMP),1)
STAMP_CONFIGURED:=$(strip $(STAMP_CONFIGURED))_$(shell echo $(CONFIG_TARGET_INIT_PATH) | mkhash md5)
endif
define Package/dropbear/Default
URL:=http://matt.ucc.asn.au/dropbear/
endef
define Package/dropbear/config
source "$(SOURCE)/Config.in"
endef
define Package/dropbear
$(call Package/dropbear/Default)
SECTION:=net
CATEGORY:=Base system
TITLE:=Small SSH2 client/server
DEPENDS:= +DROPBEAR_ZLIB:zlib
ALTERNATIVES:=
$(if $(CONFIG_DROPBEAR_SCP),ALTERNATIVES+= \
100:/usr/bin/scp:/usr/sbin/dropbear,)
$(if $(CONFIG_DROPBEAR_DBCLIENT),ALTERNATIVES+= \
100:/usr/bin/ssh:/usr/sbin/dropbear,)
endef
define Package/dropbear/description
A small SSH2 server/client designed for small memory environments.
endef
define Package/dropbear/conffiles
$(if $(CONFIG_DROPBEAR_ED25519),/etc/dropbear/dropbear_ed25519_host_key)
$(if $(CONFIG_DROPBEAR_ECC),/etc/dropbear/dropbear_ecdsa_host_key)
/etc/dropbear/dropbear_rsa_host_key
/etc/config/dropbear
endef
define Package/dropbearconvert
$(call Package/dropbear/Default)
SECTION:=utils
CATEGORY:=Utilities
TITLE:=Utility for converting SSH keys
DEPENDS:= +DROPBEAR_ZLIB:zlib
endef
CONFIGURE_ARGS += \
--disable-pam \
--enable-openpty \
--enable-syslog \
--disable-lastlog \
--disable-utmpx \
$(if $(CONFIG_DROPBEAR_UTMP),,--disable-utmp) \
--disable-wtmp \
--disable-wtmpx \
--disable-loginfunc \
$(if $(CONFIG_DROPBEAR_PUTUTLINE),,--disable-pututline) \
--disable-pututxline \
$(if $(CONFIG_DROPBEAR_ZLIB),,--disable-zlib) \
--enable-bundled-libtom
##############################################################################
#
# option|value - add option to localoptions.h
# !!option|value - replace option in sysoptions.h
#
##############################################################################
# remove protocol idented software version number:
# - LOCAL_IDENT
# disable legacy/unsafe methods and unused functionality:
# - INETD_MODE
# - DROPBEAR_CLI_NETCAT
# - DROPBEAR_DSS
# - DO_MOTD
DB_OPT_COMMON = \
DEFAULT_PATH|"$(TARGET_INIT_PATH)" \
!!LOCAL_IDENT|"SSH-2.0-dropbear" \
INETD_MODE|0 \
DROPBEAR_CLI_NETCAT|0 \
DROPBEAR_DSS|0 \
DO_MOTD|0 \
##############################################################################
#
# option|config|enabled|disabled = add option to localoptions.h
# !!option|config|enabled|disabled = replace option in sysoptions.h
#
# option := (config) ? enabled : disabled
#
##############################################################################
DB_OPT_CONFIG = \
DROPBEAR_CURVE25519|CONFIG_DROPBEAR_CURVE25519|1|0 \
DROPBEAR_ED25519|CONFIG_DROPBEAR_ED25519|1|0 \
DROPBEAR_CHACHA20POLY1305|CONFIG_DROPBEAR_CHACHA20POLY1305|1|0 \
DROPBEAR_ECDSA|CONFIG_DROPBEAR_ECC|1|0 \
DROPBEAR_ECDH|CONFIG_DROPBEAR_ECC|1|0 \
!!DROPBEAR_ECC_384|CONFIG_DROPBEAR_ECC_FULL|1|0 \
!!DROPBEAR_ECC_521|CONFIG_DROPBEAR_ECC_FULL|1|0 \
TARGET_CFLAGS += -DARGTYPE=3 -ffunction-sections -fdata-sections -flto
TARGET_LDFLAGS += -Wl,--gc-sections -flto=jobserver
db_opt_add =echo '\#define $(1) $(2)' >> $(PKG_BUILD_DIR)/localoptions.h
db_opt_replace =$(ESED) 's,^(\#define $(1)) .*$$$$,\1 $(2),g' $(PKG_BUILD_DIR)/sysoptions.h
define Build/Configure/dropbear_headers
$(strip $(foreach s,$(DB_OPT_COMMON), \
$(if $(filter !!%,$(word 1,$(subst |, ,$(s)))), \
$(call db_opt_replace,$(patsubst !!%,%,$(word 1,$(subst |, ,$(s)))),$(word 2,$(subst |, ,$(s)))), \
$(call db_opt_add,$(word 1,$(subst |, ,$(s))),$(word 2,$(subst |, ,$(s)))) \
) ; \
))
$(strip $(foreach s,$(DB_OPT_CONFIG), \
$(if $(filter !!%,$(word 1,$(subst |, ,$(s)))), \
$(call db_opt_replace,$(patsubst !!%,%,$(word 1,$(subst |, ,$(s)))),$(if $($(word 2,$(subst |, ,$(s)))),$(word 3,$(subst |, ,$(s))),$(word 4,$(subst |, ,$(s))))), \
$(call db_opt_add,$(word 1,$(subst |, ,$(s))),$(if $($(word 2,$(subst |, ,$(s)))),$(word 3,$(subst |, ,$(s))),$(word 4,$(subst |, ,$(s))))) \
) ; \
))
endef
define Build/Configure
: > $(PKG_BUILD_DIR)/localoptions.h
$(Build/Configure/Default)
$(Build/Configure/dropbear_headers)
# Enforce rebuild of svr-chansession.c
rm -f $(PKG_BUILD_DIR)/svr-chansession.o
# Rebuild them on config change
+$(MAKE) -C $(PKG_BUILD_DIR)/libtomcrypt clean
+$(MAKE) -C $(PKG_BUILD_DIR)/libtommath clean
endef
define Build/Compile
+$(MAKE) $(PKG_JOBS) -C $(PKG_BUILD_DIR) \
$(TARGET_CONFIGURE_OPTS) \
PROGRAMS="dropbear $(if $(CONFIG_DROPBEAR_DBCLIENT),dbclient,) dropbearkey $(if $(CONFIG_DROPBEAR_SCP),scp,)" \
MULTI=1 SCPPROGRESS=1
+$(MAKE) $(PKG_JOBS) -C $(PKG_BUILD_DIR) \
$(TARGET_CONFIGURE_OPTS) \
PROGRAMS="dropbearconvert"
endef
define Package/dropbear/install
$(INSTALL_DIR) $(1)/usr/sbin
$(INSTALL_BIN) $(PKG_BUILD_DIR)/dropbearmulti $(1)/usr/sbin/dropbear
$(INSTALL_DIR) $(1)/usr/bin
$(if $(CONFIG_DROPBEAR_DBCLIENT),$(LN) ../sbin/dropbear $(1)/usr/bin/dbclient,)
$(LN) ../sbin/dropbear $(1)/usr/bin/dropbearkey
$(INSTALL_DIR) $(1)/etc/config
$(INSTALL_CONF) ./files/dropbear.config $(1)/etc/config/dropbear
$(INSTALL_DIR) $(1)/etc/init.d
$(INSTALL_BIN) ./files/dropbear.init $(1)/etc/init.d/dropbear
$(INSTALL_DIR) $(1)/usr/lib/opkg/info
$(INSTALL_DIR) $(1)/etc/dropbear
$(INSTALL_DIR) $(1)/lib/preinit
$(INSTALL_DATA) ./files/dropbear.failsafe $(1)/lib/preinit/99_10_failsafe_dropbear
$(if $(CONFIG_DROPBEAR_ED25519),touch $(1)/etc/dropbear/dropbear_ed25519_host_key)
$(if $(CONFIG_DROPBEAR_ECC),touch $(1)/etc/dropbear/dropbear_ecdsa_host_key)
touch $(1)/etc/dropbear/dropbear_rsa_host_key
endef
define Package/dropbearconvert/install
$(INSTALL_DIR) $(1)/usr/bin
$(INSTALL_BIN) $(PKG_BUILD_DIR)/dropbearconvert $(1)/usr/bin/dropbearconvert
endef
$(eval $(call BuildPackage,dropbear))
$(eval $(call BuildPackage,dropbearconvert))
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