lighttpd: document crypto lib options in Makefile

Signed-off-by: Glenn Strauss <gstrauss@gluelogic.com>

net/lighttpd/Makefile

@@ -9,9 +9,9 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=lighttpd
 PKG_VERSION:=1.4.67
-PKG_RELEASE:=2
+PKG_RELEASE:=3
 # release candidate ~rcX testing; remove for release
-#PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)-1.4.67
+#PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION)
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
 PKG_SOURCE_URL:=https://download.lighttpd.net/lighttpd/releases-1.4.x
@@ -22,13 +22,58 @@ PKG_LICENSE:=BSD-3-Clause
 PKG_LICENSE_FILES:=COPYING
 PKG_CPE_ID:=cpe:/a:lighttpd:lighttpd
 
-PKG_CONFIG_DEPENDS:=CONFIG_LIGHTTPD_SSL $(patsubst %,CONFIG_PACKAGE_lighttpd-mod-%,$(REBUILD_MODULES))
+# list config packages affecting MESON_ARGS
+REBUILD_MODULES:= \
+  authn_dbi \
+  authn_gssapi \
+  authn_ldap \
+  authn_pam \
+  authn_sasl \
+  deflate \
+  gnutls \
+  magnet \
+  maxminddb \
+  mbedtls \
+  nss \
+  openssl \
+  vhostdb_dbi \
+  vhostdb_ldap \
+  vhostdb_mysql \
+  vhostdb_pgsql \
+  webdav \
+  wolfssl \
 
-REBUILD_MODULES=authn_gssapi authn_ldap magnet webdav
+PKG_CONFIG_DEPENDS:= \
+  $(patsubst %,CONFIG_PACKAGE_lighttpd-mod-%,$(REBUILD_MODULES)) \
+  CONFIG_LIGHTTPD_PCRE2 \
+  CONFIG_LIGHTTPD_CRYPTOLIB_NONE \
+  CONFIG_LIGHTTPD_CRYPTOLIB_NETTLE \
+  CONFIG_LIGHTTPD_CRYPTOLIB_MBEDTLS \
+  CONFIG_LIGHTTPD_CRYPTOLIB_WOLFSSL
+
+PKG_BUILD_DEPENDS:= \
+  LIGHTTPD_PCRE2:pcre2 \
+  LIGHTTPD_CRYPTOLIB_NETTLE:nettle \
+  LIGHTTPD_CRYPTOLIB_MBEDTLS:mbedtls \
+  LIGHTTPD_CRYPTOLIB_WOLFSSL:wolfssl
 
 include $(INCLUDE_DIR)/package.mk
 include $(INCLUDE_DIR)/meson.mk
 
+# choose crypto lib for lighttpd to use for crypto algorithms
+# (separate from lighttpd TLS modules, which are each standalone)
+ifdef CONFIG_LIGHTTPD_CRYPTOLIB_NONE)
+  cryptolib=
+else ifdef CONFIG_LIGHTTPD_CRYPTOLIB_NETTLE
+  cryptolib=libnettle
+else ifdef CONFIG_LIGHTTPD_CRYPTOLIB_MBEDTLS
+  cryptolib=libmbedtls
+  TARGET_CPPFLAGS += -DFORCE_MBEDTLS_CRYPTO
+else ifdef CONFIG_LIGHTTPD_CRYPTOLIB_WOLFSSL
+  cryptolib=libwolfssl
+  TARGET_CPPFLAGS += -DFORCE_WOLFSSL_CRYPTO
+endif
+
 define Package/lighttpd/Default
   SECTION:=net
   CATEGORY:=Network
@@ -39,13 +84,15 @@ endef
 define Package/lighttpd
   $(call Package/lighttpd/Default)
   MENU:=1
-  DEPENDS:=+libnettle +libpcre2 +libpthread +LIGHTTPD_LOGROTATE:logrotate
+  DEPENDS:=+libpthread +LIGHTTPD_LOGROTATE:logrotate \
+           $(if $(CONFIG_LIGHTTPD_PCRE2),+libpcre2,) \
+           $(if $(cryptolib),+$(cryptolib),)
   TITLE:=A flexible and lightweight web server
 endef
 
 define Package/lighttpd/config
 config LIGHTTPD_SSL
-	bool "SSL support"
+	bool "SSL support (recommended)"
 	depends on PACKAGE_lighttpd
 	default y
 	help
@@ -66,6 +113,34 @@ config LIGHTTPD_SSL_SELECT
         default m if !LIGHTTPD_SSL_DEPENDS
         select PACKAGE_lighttpd-mod-openssl
 
+config LIGHTTPD_PCRE2
+	bool "PCRE2 support (recommended)"
+	depends on PACKAGE_lighttpd
+	default y
+	help
+	  PCRE2 regular expressions for lighttpd.conf conditions
+
+if PACKAGE_lighttpd
+	choice
+		prompt "crypto library"
+		default LIGHTTPD_CRYPTOLIB_NETTLE
+		help
+		  library to use for cryptographic algorithms
+
+		config LIGHTTPD_CRYPTOLIB_NONE
+			bool "None"
+
+		config LIGHTTPD_CRYPTOLIB_NETTLE
+			bool "libnettle"
+
+		config LIGHTTPD_CRYPTOLIB_MBEDTLS
+			bool "libmbedtls"
+
+		config LIGHTTPD_CRYPTOLIB_WOLFSSL
+			bool "libwolfssl"
+	endchoice
+endif
+
 config LIGHTTPD_LOGROTATE
 	bool "Logrotate support"
 	depends on PACKAGE_lighttpd
@@ -89,11 +164,11 @@ MESON_ARGS += \
 	-Dwith_maxminddb=$(if $(CONFIG_PACKAGE_lighttpd-mod-maxminddb),true,false) \
 	-Dwith_mbedtls=$(if $(CONFIG_PACKAGE_lighttpd-mod-mbedtls),true,false) \
 	-Dwith_mysql=$(if $(CONFIG_PACKAGE_lighttpd-mod-vhostdb_mysql),true,false) \
-	-Dwith_nettle=true \
+	-Dwith_nettle=$(if $(filter libnettle,$(cryptolib)),true,false) \
 	-Dwith_nss=$(if $(CONFIG_PACKAGE_lighttpd-mod-nss),true,false) \
 	-Dwith_openssl=$(if $(CONFIG_PACKAGE_lighttpd-mod-openssl),true,false) \
 	-Dwith_pam=$(if $(CONFIG_PACKAGE_lighttpd-mod-authn_pam),true,false) \
-	-Dwith_pcre2=true \
+	-Dwith_pcre2=$(if $(CONFIG_LIGHTTPD_PCRE2),true,false) \
 	-Dwith_pgsql=$(if $(CONFIG_PACKAGE_lighttpd-mod-vhostdb_pgsql),true,false) \
 	-Dwith_sasl=$(if $(CONFIG_PACKAGE_lighttpd-mod-authn_sasl),true,false) \
 	-Dwith_webdav_locks=$(if $(CONFIG_PACKAGE_lighttpd-mod-webdav),true,false) \
@@ -165,19 +240,14 @@ endef
 
 $(eval $(call BuildPackage,lighttpd))
 
-# First, permit redirect from HTTP to HTTPS.
+$(eval $(call BuildPlugin,auth,Authentication,$(if $(cryptolib),+PACKAGE_lighttpd-mod-auth:$(cryptolib),),20))
-$(eval $(call BuildPlugin,redirect,URL redirection,+PACKAGE_lighttpd-mod-redirect:libpcre2,10))
+$(eval $(call BuildPlugin,authn_dbi,DBI-based authentication,lighttpd-mod-auth $(if $(cryptolib),+PACKAGE_lighttpd-mod-authn_dbi:$(cryptolib),) +PACKAGE_lighttpd-mod-authn_dbi:libdbi,20))
-
+$(eval $(call BuildPlugin,authn_file,File-based authentication,lighttpd-mod-auth $(if $(cryptolib),+PACKAGE_lighttpd-mod-authn_file:$(cryptolib),),20))
-# Next, permit authentication.
-$(eval $(call BuildPlugin,auth,Authentication,+PACKAGE_lighttpd-mod-auth:libnettle,20))
-$(eval $(call BuildPlugin,authn_dbi,DBI-based authentication,lighttpd-mod-auth +PACKAGE_lighttpd-mod-authn_dbi:libnettle +PACKAGE_lighttpd-mod-authn_dbi:libdbi,20))
-$(eval $(call BuildPlugin,authn_file,File-based authentication,lighttpd-mod-auth +PACKAGE_lighttpd-mod-authn_file:libnettle,20))
 $(eval $(call BuildPlugin,authn_gssapi,Kerberos-based authentication,lighttpd-mod-auth +PACKAGE_lighttpd-mod-authn_gssapi:krb5-libs,20))
 $(eval $(call BuildPlugin,authn_ldap,LDAP-based authentication,lighttpd-mod-auth +PACKAGE_lighttpd-mod-authn_ldap:libopenldap,20))
 $(eval $(call BuildPlugin,authn_pam,PAM-based authentication,lighttpd-mod-auth +PACKAGE_lighttpd-mod-authn_pam:libpam,20))
 $(eval $(call BuildPlugin,authn_sasl,SASL-based authentication,lighttpd-mod-auth +PACKAGE_lighttpd-mod-authn_sasl:libsasl2,20))
 
-# Finally, everything else.
 $(eval $(call BuildPlugin,access,Access restrictions,,30))
 $(eval $(call BuildPlugin,accesslog,Access logging,,30))
 $(eval $(call BuildPlugin,ajp13,AJP13 Tomcat connector,,30))
@@ -195,7 +265,8 @@ $(eval $(call BuildPlugin,mbedtls,TLS using mbedtls,@LIGHTTPD_SSL +PACKAGE_light
 $(eval $(call BuildPlugin,nss,TLS using nss,@LIGHTTPD_SSL +PACKAGE_lighttpd-mod-nss:libnss,30))
 $(eval $(call BuildPlugin,openssl,TLS using openssl,@LIGHTTPD_SSL +PACKAGE_lighttpd-mod-openssl:libopenssl,30))
 $(eval $(call BuildPlugin,proxy,Proxy,,30))
-$(eval $(call BuildPlugin,rewrite,URL rewriting,+PACKAGE_lighttpd-mod-rewrite:libpcre2,30))
+$(eval $(call BuildPlugin,redirect,URL redirection,$(if $(CONFIG_LIGHTTPD_PCRE2),+PACKAGE_lighttpd-mod-redirect:libpcre2,),10))
+$(eval $(call BuildPlugin,rewrite,URL rewriting,$(if $(CONFIG_LIGHTTPD_PCRE2),+PACKAGE_lighttpd-mod-rewrite:libpcre2,),30))
 $(eval $(call BuildPlugin,rrdtool,RRDtool,,30))
 $(eval $(call BuildPlugin,scgi,SCGI,,30))
 $(eval $(call BuildPlugin,setenv,Environment variable setting,,30))
@@ -212,4 +283,4 @@ $(eval $(call BuildPlugin,vhostdb_mysql,Virtual Host Database (MariaDB),lighttpd
 $(eval $(call BuildPlugin,vhostdb_pgsql,Virtual Host Database (PostgreSQL),lighttpd-mod-vhostdb +PACKAGE_lighttpd-mod-vhostdb_pgsql:libpq,30))
 $(eval $(call BuildPlugin,webdav,WebDAV,+PACKAGE_lighttpd-mod-webdav:libsqlite3 +PACKAGE_lighttpd-mod-webdav:libuuid +PACKAGE_lighttpd-mod-webdav:libxml2,30))
 $(eval $(call BuildPlugin,wolfssl,TLS using wolfssl,@LIGHTTPD_SSL +PACKAGE_lighttpd-mod-wolfssl:libwolfssl,30))
-$(eval $(call BuildPlugin,wstunnel,Websocket tunneling,+PACKAGE_lighttpd-mod-wstunnel:libnettle,30))
+$(eval $(call BuildPlugin,wstunnel,Websocket tunneling,$(if $(cryptolib),+PACKAGE_lighttpd-mod-wstunnel:$(cryptolib),),30))