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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 $(TOPDIR)/rules.mk
PKG_NAME:=dropbear
PKG_VERSION:=2022.83
PKG_RELEASE:=1
PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
PKG_SOURCE_URL:= \
https://matt.ucc.asn.au/dropbear/releases/ \
https://dropbear.nl/mirror/releases/
PKG_HASH:=bc5a121ffbc94b5171ad5ebe01be42746d50aa797c9549a4639894a16749443b
PKG_LICENSE:=MIT
PKG_LICENSE_FILES:=LICENSE libtomcrypt/LICENSE libtommath/LICENSE
PKG_CPE_ID:=cpe:/a:dropbear_ssh_project:dropbear_ssh
PKG_BUILD_PARALLEL:=1
PKG_ASLR_PIE_REGULAR:=1
PKG_BUILD_FLAGS:=no-mips16 gc-sections lto
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_U2F CONFIG_DROPBEAR_ECDSA_SK CONFIG_DROPBEAR_ED25519_SK \
CONFIG_DROPBEAR_UTMP CONFIG_DROPBEAR_PUTUTLINE \
CONFIG_DROPBEAR_DBCLIENT CONFIG_DROPBEAR_SCP CONFIG_DROPBEAR_ASKPASS \
CONFIG_DROPBEAR_DBCLIENT_AGENTFORWARD CONFIG_DROPBEAR_AGENTFORWARD \
CONFIG_DROPBEAR_MODERN_ONLY
include $(INCLUDE_DIR)/package.mk
ifneq ($(DUMP),1)
STAMP_CONFIGURED:=$(strip $(STAMP_CONFIGURED))_$(shell echo $(CONFIG_TARGET_INIT_PATH) | $(MKHASH) md5)
endif
define Package/dropbear/Default
URL:=https://matt.ucc.asn.au/dropbear/
endef
define Package/dropbear/config
source "$(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
/etc/config/dropbear
/etc/dropbear/authorized_keys
/etc/dropbear/dropbear_ecdsa_host_key
/etc/dropbear/dropbear_ed25519_host_key
/etc/dropbear/dropbear_rsa_host_key
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 $(CONFIG_DROPBEAR_ZLIB),,--disable-zlib) \
--enable-bundled-libtom
##############################################################################
#
# option,value - add option to localoptions.h
# !!option,value - replace option in sysoptions.h
#
##############################################################################
# adjust allowed shell list (if getusershell(3) is missing):
# - COMPAT_USER_SHELLS
# remove protocol idented software version number:
# - LOCAL_IDENT
# disable legacy/unsafe methods and unused functionality:
# - DROPBEAR_CLI_NETCAT
# - DROPBEAR_DSS
# - DO_MOTD
# - DROPBEAR_DH_GROUP14_SHA1
# - DROPBEAR_SHA1_HMAC
DB_OPT_COMMON = \
!!LOCAL_IDENT,"SSH-2.0-dropbear" \
COMPAT_USER_SHELLS,"/bin/ash","/bin/sh" \
DEFAULT_PATH,"$(TARGET_INIT_PATH)" \
DEFAULT_ROOT_PATH,"$(TARGET_INIT_PATH)" \
DROPBEAR_DSS,0 \
DROPBEAR_CLI_NETCAT,0 \
DO_MOTD,0 \
DROPBEAR_DH_GROUP14_SHA1,0 \
DROPBEAR_SHA1_HMAC,0 \
##############################################################################
#
# option,config,enabled,disabled = add option to localoptions.h
# !!option,config,enabled,disabled = replace option in sysoptions.h
#
# option := (config) ? enabled : disabled
#
##############################################################################
DB_OPT_CONFIG = \
!!DROPBEAR_ECC_384,CONFIG_DROPBEAR_ECC_FULL,1,0 \
!!DROPBEAR_ECC_521,CONFIG_DROPBEAR_ECC_FULL,1,0 \
DROPBEAR_CURVE25519,CONFIG_DROPBEAR_CURVE25519,1,0 \
DROPBEAR_CHACHA20POLY1305,CONFIG_DROPBEAR_CHACHA20POLY1305,1,0 \
DROPBEAR_ED25519,CONFIG_DROPBEAR_ED25519,1,0 \
DROPBEAR_ECDSA,CONFIG_DROPBEAR_ECC,1,0 \
DROPBEAR_ECDH,CONFIG_DROPBEAR_ECC,1,0 \
DROPBEAR_SK_KEYS,CONFIG_DROPBEAR_U2F,1,0 \
DROPBEAR_SK_ECDSA,CONFIG_DROPBEAR_ECDSA_SK,1,0 \
DROPBEAR_SK_ED25519,CONFIG_DROPBEAR_ED25519_SK,1,0 \
DROPBEAR_CLI_ASKPASS_HELPER,CONFIG_DROPBEAR_ASKPASS,1,0 \
DROPBEAR_CLI_AGENTFWD,CONFIG_DROPBEAR_DBCLIENT_AGENTFORWARD,1,0 \
DROPBEAR_SVR_AGENTFWD,CONFIG_DROPBEAR_AGENTFORWARD,1,0 \
DROPBEAR_AES128,CONFIG_DROPBEAR_MODERN_ONLY,0,1 \
DROPBEAR_AES256,CONFIG_DROPBEAR_MODERN_ONLY,0,1 \
DROPBEAR_ENABLE_CTR_MODE,CONFIG_DROPBEAR_MODERN_ONLY,0,1 \
DROPBEAR_RSA,CONFIG_DROPBEAR_MODERN_ONLY,0,1 \
DROPBEAR_RSA_SHA1,CONFIG_DROPBEAR_MODERN_ONLY,0,1 \
TARGET_CFLAGS += -DARGTYPE=3
xsedx:=$(shell printf '\027')
db_opt_add =echo '\#define $(1) $(2)' >> $(PKG_BUILD_DIR)/localoptions.h
db_opt_replace =$(ESED) '/^\#define $(1) .*$$$$/{h;:a;$$$$!n;/^\#.+$$$$/bb;/^$$$$/bb;H;ba;:b;x;s$(xsedx)^.+$$$$$(xsedx)\#define $(1) $(2)$(xsedx)p;x};p' -n $(PKG_BUILD_DIR)/sysoptions.h
define Build/Configure/dropbear_headers
$(strip $(foreach s,$(DB_OPT_COMMON), \
$(if $(filter !!%,$(word 1,$(subst $(comma),$(space),$(s)))), \
$(call db_opt_replace,$(patsubst !!%,%,$(word 1,$(subst $(comma),$(space),$(s)))),$(subst $(space),$(comma),$(wordlist 2,$(words $(subst $(comma),$(space),$(s))),$(subst $(comma),$(space),$(s))))), \
$(call db_opt_add,$(word 1,$(subst $(comma),$(space),$(s))),$(subst $(space),$(comma),$(wordlist 2,$(words $(subst $(comma),$(space),$(s))),$(subst $(comma),$(space),$(s))))) \
) ; \
))
$(strip $(foreach s,$(DB_OPT_CONFIG), \
$(if $(filter !!%,$(word 1,$(subst $(comma),$(space),$(s)))), \
$(call db_opt_replace,$(patsubst !!%,%,$(word 1,$(subst $(comma),$(space),$(s)))),$(if $($(word 2,$(subst $(comma),$(space),$(s)))),$(word 3,$(subst $(comma),$(space),$(s))),$(word 4,$(subst $(comma),$(space),$(s))))), \
$(call db_opt_add,$(word 1,$(subst $(comma),$(space),$(s))),$(if $($(word 2,$(subst $(comma),$(space),$(s)))),$(word 3,$(subst $(comma),$(space),$(s))),$(word 4,$(subst $(comma),$(space),$(s))))) \
) ; \
))
endef
define Build/Configure/dropbear_objects
grep -ERZl -e '($(subst $(space),|,$(strip $(sort $(patsubst !!%,%,$(foreach s,$(DB_OPT_COMMON) $(DB_OPT_CONFIG),$(word 1,$(subst $(comma),$(space),$(s)))))))))' \
$(PKG_BUILD_DIR)/ | sed -zE 's/^(.+)\.[^.]+$$$$/\1.o/' | sort -uV | xargs -0 -r rm -fv || :
endef
define Build/Configure
rm -f $(PKG_BUILD_DIR)/localoptions.h
$(Build/Configure/Default)
: > $(PKG_BUILD_DIR)/localoptions.h
$(Build/Configure/dropbear_headers)
# Enforce rebuild of files depending on configured options
$(Build/Configure/dropbear_objects)
# Rebuild them on config change
+$(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) \
IGNORE_SPEED=1 \
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) \
IGNORE_SPEED=1 \
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
$(foreach f,$(filter /etc/dropbear/%,$(Package/dropbear/conffiles)),$(if $(wildcard $(TOPDIR)/files/$(f)),chmod 0600 $(TOPDIR)/files/$(f) || :; ))
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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