package/strongswan: add options to select EAP plugins

Add options to chose individual EAP plugins.

All the new plugins are enabled by default if the old single option was
enabled, for a seamless update from an older Buildroot config, but for
new configurations, they are not enabled by default.

BR2_PACKAGE_STRONGSWAN_EAP_AKA_3GPP2 is the only plugin requiring
libgmp; the selection of BR2_PACKAGE_GMP is moved down accordingly.

Signed-off-by: Martin Elshuber <martin.elshuber@theobroma-systems.com>
[yann.morin.1998@free.fr:
  - move BR2_PACKAGE_STRONGSWAN_EAP to legacy
  - extend commit log accordingly
  - fix check-package
]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

Config.in.legacy

@@ -146,6 +146,12 @@ endif
 
 comment "Legacy options removed in 2021.11"
 
+config BR2_PACKAGE_STRONGSWAN_EAP
+	bool "strongswan EAP plugins now individually selectable"
+	select BR2_LEGACY
+	help
+	  The various EAP plugins are now individually selectable.
+
 config BR2_PACKAGE_GNURADIO_PAGER
 	bool "gnuradio gr-flex support removed"
 	select BR2_LEGACY

package/strongswan/Config.in

@@ -76,37 +76,79 @@ config BR2_PACKAGE_STRONGSWAN_TNCCS_DYNAMIC
 config BR2_PACKAGE_STRONGSWAN_SYSTIME_FIX
 	bool "Enable systime-fix plugin"
 
-config BR2_PACKAGE_STRONGSWAN_EAP
-	bool "Enable EAP protocols"
-	select BR2_PACKAGE_GMP
-	help
-	  Enable various EAP protocols:
-	    - mschapv2
-	    - tls
-	    - ttls
-	    - peap
-	    - sim
-	    - sim-file
-	    - aka
-	    - aka-3gpp2
-	    - simaka-sql
-	    - simaka-pseudonym
-	    - simaka-reauth
-	    - identity
-	    - md5
-	    - gtc
-	    - tnc
-	    - dynamic
-	    - radius
-
-if BR2_PACKAGE_STRONGSWAN_EAP
+config BR2_PACKAGE_STRONGSWAN_EAP_SIM
+	bool "Enable EAP-SIM"
+	default y if BR2_PACKAGE_STRONGSWAN_EAP # legacy
+
+config BR2_PACKAGE_STRONGSWAN_EAP_SIM_FILE
+	bool "Enable EAP-SIM file backend"
+	default y if BR2_PACKAGE_STRONGSWAN_EAP # legacy
 
 config BR2_PACKAGE_STRONGSWAN_EAP_SIM_PCSC
 	bool "Enable EAP-SIM smart card backend"
 	depends on !BR2_STATIC_LIBS # pcsc-lite
 	select BR2_PACKAGE_PCSC_LITE
 
-endif
+config BR2_PACKAGE_STRONGSWAN_EAP_AKA
+	bool "Enable EAP-AKA"
+	default y if BR2_PACKAGE_STRONGSWAN_EAP # legacy
+
+config BR2_PACKAGE_STRONGSWAN_EAP_AKA_3GPP2
+	bool "Enable EAP-AKA 3GPP2 algorithms"
+	default y if BR2_PACKAGE_STRONGSWAN_EAP # legacy
+	select BR2_PACKAGE_GMP
+
+config BR2_PACKAGE_STRONGSWAN_EAP_SIMAKA_SQL
+	bool "Enable EAP-SIM/AKA backend based on a triplet/quintuplet SQL database"
+	default y if BR2_PACKAGE_STRONGSWAN_EAP # legacy
+
+config BR2_PACKAGE_STRONGSWAN_EAP_SIMAKA_PSEUDONYM
+	bool "Enable EAP-SIM/AKA pseudonym storage"
+	default y if BR2_PACKAGE_STRONGSWAN_EAP # legacy
+
+config BR2_PACKAGE_STRONGSWAN_EAP_SIMAKA_REAUTH
+	bool "Enable EAP-SIM/AKA reauthentication data storage"
+	default y if BR2_PACKAGE_STRONGSWAN_EAP # legacy
+
+config BR2_PACKAGE_STRONGSWAN_EAP_IDENTITY
+	bool "Enable EAP-Identity"
+	default y if BR2_PACKAGE_STRONGSWAN_EAP # legacy
+
+config BR2_PACKAGE_STRONGSWAN_EAP_MD5
+	bool "Enable EAP-MD5"
+	default y if BR2_PACKAGE_STRONGSWAN_EAP # legacy
+
+config BR2_PACKAGE_STRONGSWAN_EAP_GTC
+	bool "Enable EAP-GDC"
+	default y if BR2_PACKAGE_STRONGSWAN_EAP # legacy
+
+config BR2_PACKAGE_STRONGSWAN_EAP_MSCHAPV2
+	bool "Enable EAP-MSCHAPv2"
+	default y if BR2_PACKAGE_STRONGSWAN_EAP # legacy
+
+config BR2_PACKAGE_STRONGSWAN_EAP_PEAP
+	bool "Enable EAP-PEAP"
+	default y if BR2_PACKAGE_STRONGSWAN_EAP # legacy
+
+config BR2_PACKAGE_STRONGSWAN_EAP_RADIUS
+	bool "Enable EAP-RADIUS"
+	default y if BR2_PACKAGE_STRONGSWAN_EAP # legacy
+
+config BR2_PACKAGE_STRONGSWAN_EAP_TLS
+	bool "Enable EAP-TLS"
+	default y if BR2_PACKAGE_STRONGSWAN_EAP # legacy
+
+config BR2_PACKAGE_STRONGSWAN_EAP_TTLS
+	bool "Enable EAP-TTLS"
+	default y if BR2_PACKAGE_STRONGSWAN_EAP # legacy
+
+config BR2_PACKAGE_STRONGSWAN_EAP_DYNAMIC
+	bool "Enable EAP-DYNAMIC"
+	default y if BR2_PACKAGE_STRONGSWAN_EAP # legacy
+
+config BR2_PACKAGE_STRONGSWAN_EAP_TNC
+	bool "Enable EAP-TNC"
+	default y if BR2_PACKAGE_STRONGSWAN_EAP # legacy
 
 config BR2_PACKAGE_STRONGSWAN_UNITY
 	bool "Enables Cisco Unity extension plugin"

package/strongswan/strongswan.mk

@@ -38,6 +38,23 @@ STRONGSWAN_CONF_OPTS += \
 	--enable-swanctl=$(if $(BR2_PACKAGE_STRONGSWAN_VICI),yes,no) \
 	--enable-wolfssl=$(if $(BR2_PACKAGE_STRONGSWAN_WOLFSSL),yes,no) \
 	--enable-systime-fix=$(if $(BR2_PACKAGE_STRONGSWAN_SYSTIME_FIX),yes,no) \
+	--enable-eap-sim=$(if $(BR2_PACKAGE_STRONGSWAN_EAP_SIM),yes,no) \
+	--enable-eap-sim-file=$(if $(BR2_PACKAGE_STRONGSWAN_EAP_SIM_FILE),yes,no) \
+	--enable-eap-aka=$(if $(BR2_PACKAGE_STRONGSWAN_EAP_AKA),yes,no) \
+	--enable-eap-aka-3gpp2=$(if $(BR2_PACKAGE_STRONGSWAN_EAP_AKA_3GPP2),yes,no) \
+	--enable-eap-simaka-sql=$(if $(BR2_PACKAGE_STRONGSWAN_EAP_SIMAKA_SQL),yes,no) \
+	--enable-eap-simaka-pseudonym=$(if $(BR2_PACKAGE_STRONGSWAN_EAP_SIMAKA_PSEUDONYM),yes,no) \
+	--enable-eap-simaka-reauth=$(if $(BR2_PACKAGE_STRONGSWAN_EAP_SIMAKA_REAUTH),yes,no) \
+	--enable-eap-identity=$(if $(BR2_PACKAGE_STRONGSWAN_EAP_IDENTITY),yes,no) \
+	--enable-eap-md5=$(if $(BR2_PACKAGE_STRONGSWAN_EAP_MD5),yes,no) \
+	--enable-eap-gtc=$(if $(BR2_PACKAGE_STRONGSWAN_EAP_GTC),yes,no) \
+	--enable-eap-mschapv2=$(if $(BR2_PACKAGE_STRONGSWAN_EAP_MSCHAPV2),yes,no) \
+	--enable-eap-tls=$(if $(BR2_PACKAGE_STRONGSWAN_EAP_TLS),yes,no) \
+	--enable-eap-ttls=$(if $(BR2_PACKAGE_STRONGSWAN_EAP_TTLS),yes,no) \
+	--enable-eap-peap=$(if $(BR2_PACKAGE_STRONGSWAN_EAP_PEAP),yes,no) \
+	--enable-eap-tnc=$(if $(BR2_PACKAGE_STRONGSWAN_EAP_TNC),yes,no) \
+	--enable-eap-dynamic=$(if $(BR2_PACKAGE_STRONGSWAN_EAP_DYNAMIC),yes,no) \
+	--enable-eap-radius=$(if $(BR2_PACKAGE_STRONGSWAN_EAP_RADIUS),yes,no) \
 	--with-ipseclibdir=/usr/lib \
 	--with-plugindir=/usr/lib/ipsec/plugins \
 	--with-imcvdir=/usr/lib/ipsec/imcvs \
@@ -47,32 +64,11 @@ ifeq ($(BR2_TOOLCHAIN_HAS_LIBATOMIC),y)
 STRONGSWAN_CONF_ENV += LIBS='-latomic'
 endif
 
-ifeq ($(BR2_PACKAGE_STRONGSWAN_EAP),y)
-STRONGSWAN_CONF_OPTS += \
-	--enable-eap-sim \
-	--enable-eap-sim-file \
-	--enable-eap-aka \
-	--enable-eap-aka-3gpp2 \
-	--enable-eap-simaka-sql \
-	--enable-eap-simaka-pseudonym \
-	--enable-eap-simaka-reauth \
-	--enable-eap-identity \
-	--enable-eap-md5 \
-	--enable-eap-gtc \
-	--enable-eap-mschapv2 \
-	--enable-eap-tls \
-	--enable-eap-ttls \
-	--enable-eap-peap \
-	--enable-eap-tnc \
-	--enable-eap-dynamic \
-	--enable-eap-radius
-STRONGSWAN_DEPENDENCIES += gmp
-endif
-
 STRONGSWAN_DEPENDENCIES += \
 	$(if $(BR2_PACKAGE_STRONGSWAN_OPENSSL),openssl) \
 	$(if $(BR2_PACKAGE_STRONGSWAN_GCRYPT),libgcrypt) \
 	$(if $(BR2_PACKAGE_STRONGSWAN_GMP),gmp) \
+	$(if $(BR2_PACKAGE_STRONGSWAN_EAP_AKA_3GPP2),gmp) \
 	$(if $(BR2_PACKAGE_STRONGSWAN_CURL),libcurl) \
 	$(if $(BR2_PACKAGE_STRONGSWAN_TNCCS_11),libxml2) \
 	$(if $(BR2_PACKAGE_STRONGSWAN_EAP_SIM_PCSC),pcsc-lite) \