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wolfssl: add libwolfssl-cpu-crypto package
libwolfssl-cpu-crypto is a variant of libwolfssl with support for cryptographic CPU instructions on x86_64 and aarch64. On aarch64, wolfSSL does not perform run-time detection, so the library will crash when the AES functions are called. A preinst script attempts to check for support by querying /proc/cpuinfo, if installed in a running system. When building an image, the script will check the DISTRIB_TARGET value in /etc/openwrt_release, and will abort installation if target is bcm27xx. Signed-off-by: Eneas U de Queiroz <cotequeiroz@gmail.com>
This commit is contained in:
Eneas U de Queiroz
Christian Marangi
parent
94129cbefb
commit
c3e7d86d2b
@ -1,4 +1,4 @@
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if PACKAGE_libwolfssl
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menu "wolfSSL Library Configuration"
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config WOLFSSL_HAS_AES_CCM
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bool "Include AES-CCM support"
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@ -66,38 +66,31 @@ config WOLFSSL_ALT_NAMES
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config WOLFSSL_HAS_DEVCRYPTO
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bool
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config WOLFSSL_ASM_CAPABLE
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bool
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default x86_64 || (aarch64 && !TARGET_bcm27xx)
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if PACKAGE_libwolfssl
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if PACKAGE_libwolfssl-cpu-crypto
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comment "Hardware Acceleration does not apply to libwolfssl-cpu-crypto"
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endif
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choice
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prompt "Hardware Acceleration"
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default WOLFSSL_HAS_NO_HW
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choice
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prompt "Hardware Acceleration"
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default WOLFSSL_HAS_NO_HW
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config WOLFSSL_HAS_NO_HW
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bool "None"
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config WOLFSSL_HAS_NO_HW
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bool "None"
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config WOLFSSL_HAS_AFALG
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bool "AF_ALG"
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config WOLFSSL_HAS_CPU_CRYPTO
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bool "Use CPU crypto instructions"
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depends on WOLFSSL_ASM_CAPABLE
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help
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This will use Intel AESNI insturctions or armv8 Crypto Extensions.
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Either of them should easily outperform hardware crypto in WolfSSL.
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config WOLFSSL_HAS_DEVCRYPTO_CBC
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bool "/dev/crytpo - AES-CBC-only"
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select WOLFSSL_HAS_DEVCRYPTO
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config WOLFSSL_HAS_AFALG
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bool "AF_ALG"
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config WOLFSSL_HAS_DEVCRYPTO_CBC
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bool "/dev/crytpo - AES-CBC-only"
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select WOLFSSL_HAS_DEVCRYPTO
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config WOLFSSL_HAS_DEVCRYPTO_AES
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bool "/dev/crypto - AES-only (all supported modes)"
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select WOLFSSL_HAS_DEVCRYPTO
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config WOLFSSL_HAS_DEVCRYPTO_FULL
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bool "/dev/crypto - full"
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select WOLFSSL_HAS_DEVCRYPTO
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endchoice
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config WOLFSSL_HAS_DEVCRYPTO_AES
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bool "/dev/crypto - AES-only (all supported modes)"
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select WOLFSSL_HAS_DEVCRYPTO
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config WOLFSSL_HAS_DEVCRYPTO_FULL
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bool "/dev/crypto - full"
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select WOLFSSL_HAS_DEVCRYPTO
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endchoice
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endif
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endmenu
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@ -45,7 +45,6 @@ PKG_ABI_VERSION:=$(patsubst %-stable,%,$(PKG_VERSION)).$(call version_abbrev,$(c
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PKG_CONFIG_DEPENDS+=\
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CONFIG_WOLFSSL_HAS_AFALG \
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CONFIG_WOLFSSL_HAS_CPU_CRYPTO \
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CONFIG_WOLFSSL_HAS_DEVCRYPTO_AES \
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CONFIG_WOLFSSL_HAS_DEVCRYPTO_CBC \
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CONFIG_WOLFSSL_HAS_DEVCRYPTO_FULL
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@ -66,6 +65,9 @@ $(call Package/libwolfssl/Default)
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PROVIDES:=libcyassl
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DEPENDS:=+WOLFSSL_HAS_DEVCRYPTO:kmod-cryptodev +WOLFSSL_HAS_AFALG:kmod-crypto-user
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ABI_VERSION:=$(PKG_ABI_VERSION)
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VARIANT:=regular
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DEFAULT_VARIANT:=1
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CONFLICTS:=libwolfssl-cpu-crypto
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endef
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define Package/libwolfssl/description
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@ -77,12 +79,38 @@ define Package/libwolfssl/config
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source "$(SOURCE)/Config.in"
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endef
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define Package/libwolfssl-cpu-crypto
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$(call Package/libwolfssl/Default)
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TITLE:=wolfSSL library with AES CPU instructions
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PROVIDES:=libwolfssl libcyassl
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DEPENDS:=@((aarch64||x86_64)&&(m||!TARGET_bcm27xx))
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ABI_VERSION:=$(PKG_ABI_VERSION)
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VARIANT:=cpu-crypto
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endef
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define Package/libwolfssl-benchmark
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$(call Package/libwolfssl/Default)
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TITLE:=wolfSSL Benchmark Utility
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DEPENDS:=libwolfssl
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endef
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define Package/libwolfssl-cpu-crypto/description
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$(call Package/libwolfssl/description)
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This variant uses AES CPU instructions (Intel AESNI or ARMv8 Crypto Extension)
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endef
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define Package/libwolfssl-cpu-crypto/config
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if TARGET_armvirt && PACKAGE_libwolfssl-cpu-crypto = y
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comment "You are about to build libwolfssl-cpu-crypto into an armvirt_64 image."
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comment "Ensure all of your installation targets support the Crypto Extension. "
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comment "Look for the 'aes' feature in /proc/cpuinfo. This library does not do "
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comment "run-time detection and will crash if the CPU does not support it. "
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endif
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if TARGET_bcm27xx && PACKAGE_libwolfssl-cpu-crypto
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comment "Beware that libwolfssl-cpu-crypto will not run in a bcm27xx target. "
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endif
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endef
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define Package/libwolfssl-benchmark/description
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This is the wolfssl benchmark utility.
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endef
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@ -121,11 +149,23 @@ CONFIGURE_ARGS += \
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--$(if $(CONFIG_WOLFSSL_HAS_DTLS),enable,disable)-dtls \
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--$(if $(CONFIG_WOLFSSL_HAS_ECC25519),enable,disable)-curve25519 \
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--$(if $(CONFIG_WOLFSSL_HAS_ECC448),enable,disable)-curve448 \
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--$(if $(CONFIG_WOLFSSL_HAS_OPENVPN),enable,disable)-openvpn
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ifeq ($(BUILD_VARIANT),regular)
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CONFIGURE_ARGS += \
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--$(if $(CONFIG_WOLFSSL_HAS_AFALG),enable,disable)-afalg \
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--$(if $(CONFIG_WOLFSSL_HAS_OPENVPN),enable,disable)-openvpn \
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--enable-devcrypto=$(if $(CONFIG_WOLFSSL_HAS_DEVCRYPTO_CBC),cbc\
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,$(if $(CONFIG_WOLFSSL_HAS_DEVCRYPTO_AES),aes\
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,$(if $(CONFIG_WOLFSSL_HAS_DEVCRYPTO_FULL),yes,no)))
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else ifdef CONFIG_aarch64
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CONFIGURE_ARGS += --enable-armasm
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TARGET_CFLAGS:=$(TARGET_CFLAGS:-mcpu%=-mcpu%+crypto)
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WOLFSSL_NOASM_REGEX:=^bcm27xx/.*
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Package/libwolfssl-cpu-crypto/preinst=\
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$(subst @@WOLFSSL_NOASM_REGEX@@,$(WOLFSSL_NOASM_REGEX),$(file <preinst.arm-ce))
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else ifdef CONFIG_TARGET_x86_64
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CONFIGURE_ARGS += --enable-intelasm
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endif
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ifeq ($(CONFIG_WOLFSSL_HAS_OCSP),y)
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CONFIGURE_ARGS += \
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@ -137,15 +177,6 @@ CONFIGURE_ARGS += \
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--enable-wpas --enable-fortress --enable-fastmath
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endif
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ifdef CONFIG_WOLFSSL_HAS_CPU_CRYPTO
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ifdef CONFIG_aarch64
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CONFIGURE_ARGS += --enable-armasm
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TARGET_CFLAGS:=$(TARGET_CFLAGS:-mcpu%=-mcpu%+crypto)
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else ifdef CONFIG_TARGET_x86_64
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CONFIGURE_ARGS += --enable-intelasm
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endif
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endif
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define Build/InstallDev
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$(INSTALL_DIR) $(1)/usr/include $(1)/usr/lib/pkgconfig
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$(CP) $(PKG_INSTALL_DIR)/usr/include/* $(1)/usr/include/
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@ -163,10 +194,13 @@ define Package/libwolfssl/install
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$(CP) $(PKG_INSTALL_DIR)/usr/lib/libwolfssl.so.* $(1)/usr/lib/
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endef
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Package/libwolfssl-cpu-crypto/install=$(Package/libwolfssl/install)
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define Package/libwolfssl-benchmark/install
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$(INSTALL_DIR) $(1)/usr/bin
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$(CP) $(PKG_BUILD_DIR)/wolfcrypt/benchmark/.libs/benchmark $(1)/usr/bin/wolfssl-benchmark
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endef
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$(eval $(call BuildPackage,libwolfssl))
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$(eval $(call BuildPackage,libwolfssl-cpu-crypto))
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$(eval $(call BuildPackage,libwolfssl-benchmark))
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25
package/libs/wolfssl/preinst.arm-ce
Normal file
25
package/libs/wolfssl/preinst.arm-ce
Normal file
@ -0,0 +1,25 @@
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#!/bin/sh
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exec >&2
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printf "[libwolfssl-cpu-crypto] Checking for Arm v8-A Cryptographic Extension support: "
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if [ -n "${IPKG_INSTROOT}" ]; then
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printf "...[offline]... "
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eval "$(grep '^DISTRIB_TARGET=' "${IPKG_INSTROOT}/etc/openwrt_release")"
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### @@WOLFSSL_NOASM_REGEX@@ is expanded from WOLFSSL_NOASM_REGEX in the Makefile
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echo "${DISTRIB_TARGET}" | grep '@@WOLFSSL_NOASM_REGEX@@' > /dev/null && {
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echo "not supported"
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echo "Error: Target ${DISTRIB_TARGET} does not support Arm Cryptographic Extension."
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echo "Install the regular libwolfssl package instead of libwolfssl-cpu-crypto."
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exit 1
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}
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else
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grep -q '^Features.*\baes\b' /proc/cpuinfo || {
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echo "not supported"
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echo "Error: Arm v8-A Cryptographic Extension not supported."
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echo "Install the regular libwolfssl package instead of libwolfssl-cpu-crypto."
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echo "Contents of /proc/cpuinfo:"
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cat /proc/cpuinfo
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exit 1
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}
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fi
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echo OK
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exit 0
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