menu "Configuration"
depends on PACKAGE_dropbear
+config DROPBEAR_CURVE25519
+ bool "Curve25519 support"
+ default n
+ help
+ This enables the following key exchange algorithm:
+ curve25519-sha256@libssh.org
+
+ Increases binary size by about 13 kB uncompressed (MIPS).
+
config DROPBEAR_ECC
bool "Elliptic curve cryptography (ECC)"
default n
ecdh-sha2-nistp256
ecdh-sha2-nistp384
ecdh-sha2-nistp521
- curve25519-sha256@libssh.org
Public key algorithms:
ecdsa-sha2-nistp256
Does not generate ECC host keys by default (ECC key exchange will not be used,
only ECC public key auth).
- Increases binary size by about 36 kB (MIPS).
+ Increases binary size by about 23 kB (MIPS).
endmenu
PKG_BUILD_PARALLEL:=1
PKG_USE_MIPS16:=0
-PKG_CONFIG_DEPENDS:=CONFIG_DROPBEAR_ECC
+PKG_CONFIG_DEPENDS:=CONFIG_DROPBEAR_ECC CONFIG_DROPBEAR_CURVE25519
include $(INCLUDE_DIR)/package.mk
define Build/Configure
$(Build/Configure/Default)
+ awk 'BEGIN { rc = 1 } \
+ /'DROPBEAR_CURVE25519'/ { $$$$0 = "$(if $(CONFIG_DROPBEAR_CURVE25519),,// )#define 'DROPBEAR_CURVE25519'"; rc = 0 } \
+ { print } \
+ END { exit(rc) }' $(PKG_BUILD_DIR)/options.h \
+ >$(PKG_BUILD_DIR)/options.h.new && \
+ mv $(PKG_BUILD_DIR)/options.h.new $(PKG_BUILD_DIR)/options.h
+
# Enforce that all replacements are made, otherwise options.h has changed
# format and this logic is broken.
- for OPTION in DROPBEAR_ECDSA DROPBEAR_ECDH DROPBEAR_CURVE25519; do \
+ for OPTION in DROPBEAR_ECDSA DROPBEAR_ECDH; do \
awk 'BEGIN { rc = 1 } \
/'$$$$OPTION'/ { $$$$0 = "$(if $(CONFIG_DROPBEAR_ECC),,// )#define '$$$$OPTION'"; rc = 0 } \
{ print } \