www-servers/apache: add systemd hardening

Bug: 586984

Package-Manager: portage-2.2.28

2 files changed, 264 insertions, 0 deletions

diff --git a/www-servers/apache/apache-2.4.23-r1.ebuild b/www-servers/apache/apache-2.4.23-r1.ebuild
new file mode 100644
index 000000000000..3b4efa305173
--- /dev/null
+++ b/www-servers/apache/apache-2.4.23-r1.ebuild
@@ -0,0 +1,237 @@
+# Copyright 1999-2016 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+EAPI=5
+
+# latest gentoo apache files
+GENTOO_PATCHSTAMP="20160303"
+GENTOO_DEVELOPER="polynomial-c"
+GENTOO_PATCHNAME="gentoo-apache-2.4.18-r1"
+
+# IUSE/USE_EXPAND magic
+IUSE_MPMS_FORK="prefork"
+IUSE_MPMS_THREAD="event worker"
+
+# << obsolete modules:
+# authn_default authz_default mem_cache
+# mem_cache is replaced by cache_disk
+# ?? buggy modules
+# proxy_scgi: startup error: undefined symbol "ap_proxy_release_connection", no fix found
+# >> added modules for reason:
+# compat: compatibility with 2.2 access control
+# authz_host: new module for access control
+# authn_core: functionality provided by authn_alias in previous versions
+# authz_core: new module, provides core authorization capabilities
+# cache_disk: replacement for mem_cache
+# lbmethod_byrequests: Split off from mod_proxy_balancer in 2.3
+# lbmethod_bytraffic: Split off from mod_proxy_balancer in 2.3
+# lbmethod_bybusyness: Split off from mod_proxy_balancer in 2.3
+# lbmethod_heartbeat: Split off from mod_proxy_balancer in 2.3
+# slotmem_shm: Slot-based shared memory provider (for lbmethod_byrequests).
+# socache_shmcb: shared object cache provider. Default config with ssl needs it
+# unixd: fixes startup error: Invalid command 'User'
+IUSE_MODULES="access_compat actions alias asis auth_basic auth_digest
+authn_alias authn_anon authn_core authn_dbd authn_dbm authn_file authz_core
+authz_dbd authz_dbm authz_groupfile authz_host authz_owner authz_user autoindex
+cache cache_disk cern_meta charset_lite cgi cgid dav dav_fs dav_lock dbd deflate
+dir dumpio env expires ext_filter file_cache filter headers http2 ident imagemap
+include info lbmethod_byrequests lbmethod_bytraffic lbmethod_bybusyness
+lbmethod_heartbeat log_config log_forensic logio macro mime mime_magic negotiation
+proxy proxy_ajp proxy_balancer proxy_connect proxy_ftp proxy_html proxy_http proxy_scgi
+proxy_fcgi  proxy_wstunnel rewrite ratelimit remoteip reqtimeout setenvif
+slotmem_shm speling socache_shmcb status substitute unique_id userdir usertrack
+unixd version vhost_alias"
+# The following are also in the source as of this version, but are not available
+# for user selection:
+# bucketeer case_filter case_filter_in echo http isapi optional_fn_export
+# optional_fn_import optional_hook_export optional_hook_import
+
+# inter-module dependencies
+# TODO: this may still be incomplete
+MODULE_DEPENDS="
+	dav_fs:dav
+	dav_lock:dav
+	deflate:filter
+	cache_disk:cache
+	ext_filter:filter
+	file_cache:cache
+	lbmethod_byrequests:proxy_balancer
+	lbmethod_byrequests:slotmem_shm
+	lbmethod_bytraffic:proxy_balancer
+	lbmethod_bybusyness:proxy_balancer
+	lbmethod_heartbeat:proxy_balancer
+	log_forensic:log_config
+	logio:log_config
+	cache_disk:cache
+	mime_magic:mime
+	proxy_ajp:proxy
+	proxy_balancer:proxy
+	proxy_balancer:slotmem_shm
+	proxy_connect:proxy
+	proxy_ftp:proxy
+	proxy_html:proxy
+	proxy_http:proxy
+	proxy_scgi:proxy
+	proxy_fcgi:proxy
+	proxy_wstunnel:proxy
+	substitute:filter
+"
+
+# module<->define mappings
+MODULE_DEFINES="
+	auth_digest:AUTH_DIGEST
+	authnz_ldap:AUTHNZ_LDAP
+	cache:CACHE
+	cache_disk:CACHE
+	dav:DAV
+	dav_fs:DAV
+	dav_lock:DAV
+	file_cache:CACHE
+	http2:HTTP2
+	info:INFO
+	ldap:LDAP
+	proxy:PROXY
+	proxy_ajp:PROXY
+	proxy_balancer:PROXY
+	proxy_connect:PROXY
+	proxy_ftp:PROXY
+	proxy_html:PROXY
+	proxy_http:PROXY
+	proxy_fcgi:PROXY
+	proxy_scgi:PROXY
+	proxy_wstunnel:PROXY
+	socache_shmcb:SSL
+	ssl:SSL
+	status:STATUS
+	suexec:SUEXEC
+	userdir:USERDIR
+"
+
+# critical modules for the default config
+MODULE_CRITICAL="
+	authn_core
+	authz_core
+	authz_host
+	dir
+	mime
+	unixd
+"
+inherit eutils apache-2 systemd toolchain-funcs
+
+DESCRIPTION="The Apache Web Server"
+HOMEPAGE="https://httpd.apache.org/"
+
+# some helper scripts are Apache-1.1, thus both are here
+LICENSE="Apache-2.0 Apache-1.1"
+SLOT="2"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~mips ~ppc ~ppc64 ~s390 ~sh ~sparc ~x86 ~amd64-fbsd ~sparc-fbsd ~x86-fbsd ~amd64-linux ~x64-macos ~x86-macos ~m68k-mint ~sparc64-solaris ~x64-solaris"
+
+DEPEND+="apache2_modules_http2? ( >=net-libs/nghttp2-1.2.1 )"
+
+REQUIRED_USE="apache2_modules_http2? ( ssl )"
+
+pkg_setup() {
+	# dependend critical modules which are not allowed in global scope due
+	# to USE flag conditionals (bug #499260)
+	use ssl && MODULE_CRITICAL+=" socache_shmcb"
+	use doc && MODULE_CRITICAL+=" alias negotiation setenvif"
+	apache-2_pkg_setup
+}
+
+src_configure() {
+	# Brain dead check.
+	tc-is-cross-compiler && export ap_cv_void_ptr_lt_long="no"
+
+	apache-2_src_configure
+}
+
+src_compile() {
+	if tc-is-cross-compiler; then
+		# This header is the same across targets, so use the build compiler.
+		pushd server >/dev/null
+		emake gen_test_char
+		tc-export_build_env BUILD_CC
+		${BUILD_CC} ${BUILD_CFLAGS} ${BUILD_CPPFLAGS} ${BUILD_LDFLAGS} \
+			gen_test_char.c -o gen_test_char $(apr-1-config --includes) || die
+		popd >/dev/null
+	fi
+
+	default
+}
+
+src_install() {
+	apache-2_src_install
+	for i in /usr/bin/{htdigest,logresolve,htpasswd,htdbm,ab,httxt2dbm}; do
+		rm "${ED}"/$i || die "Failed to prune apache-tools bits"
+	done
+	for i in /usr/share/man/man8/{rotatelogs.8,htcacheclean.8}; do
+		rm "${ED}"/$i || die "Failed to prune apache-tools bits"
+	done
+	for i in /usr/share/man/man1/{logresolve.1,htdbm.1,htdigest.1,htpasswd.1,dbmmanage.1,ab.1}; do
+		rm "${ED}"/$i || die "Failed to prune apache-tools bits"
+	done
+	for i in /usr/sbin/{checkgid,fcgistarter,htcacheclean,rotatelogs}; do
+		rm "${ED}/"$i || die "Failed to prune apache-tools bits"
+	done
+
+	# install apxs in /usr/bin (bug #502384) and put a symlink into the
+	# old location until all ebuilds and eclasses have been modified to
+	# use the new location.
+	local apxs="/usr/bin/apxs"
+	cp "${S}"/support/apxs "${ED}"${apxs} || die "Failed to install apxs"
+	ln -s ../bin/apxs "${ED}"/usr/sbin/apxs || die
+	chmod 0755 "${ED}"${apxs} || die
+
+	# Note: wait for mod_systemd to be included in the next release,
+	# then apache2.4.service can be used and systemd support controlled
+	# through --enable-systemd
+	systemd_newunit "${FILESDIR}/apache2.2-hardened.service" "apache2.service"
+	systemd_dotmpfilesd "${FILESDIR}/apache.conf"
+	#insinto /etc/apache2/modules.d
+	#doins "${FILESDIR}/00_systemd.conf"
+
+	# Install http2 module config
+	insinto /etc/apache2/modules.d
+	doins "${FILESDIR}"/41_mod_http2.conf
+}
+
+pkg_postinst()
+{
+	apache-2_pkg_postinst || die "apache-2_pkg_postinst failed"
+	# warnings that default config might not work out of the box
+	for mod in $MODULE_CRITICAL; do
+		if ! use "apache2_modules_${mod}"; then
+			echo
+			ewarn "Warning: Critical module not installed!"
+			ewarn "Modules 'authn_core', 'authz_core' and 'unixd'"
+			ewarn "are highly recomended but might not be in the base profile yet."
+			ewarn "Default config for ssl needs module 'socache_shmcb'."
+			ewarn "Enabling the following flags is highly recommended:"
+			for cmod in $MODULE_CRITICAL; do
+				use "apache2_modules_${cmod}" || \
+					ewarn "+ apache2_modules_${cmod}"
+			done
+			echo
+			break
+		fi
+	done
+	# warning for proxy_balancer and missing load balancing scheduler
+	if use apache2_modules_proxy_balancer; then
+		local lbset=
+		for mod in lbmethod_byrequests lbmethod_bytraffic lbmethod_bybusyness lbmethod_heartbeat; do
+			if use "apache2_modules_${mod}"; then
+				lbset=1 && break
+			fi
+		done
+		if [ ! $lbset ]; then
+			echo
+			ewarn "Info: Missing load balancing scheduler algorithm module"
+			ewarn "(They were split off from proxy_balancer in 2.3)"
+			ewarn "In order to get the ability of load balancing, at least"
+			ewarn "one of these modules has to be present:"
+			ewarn "lbmethod_byrequests lbmethod_bytraffic lbmethod_bybusyness lbmethod_heartbeat"
+			echo
+		fi
+	fi
+}
diff --git a/www-servers/apache/files/apache2.2-hardened.service b/www-servers/apache/files/apache2.2-hardened.service
new file mode 100644
index 000000000000..7a512a733e72
--- /dev/null
+++ b/www-servers/apache/files/apache2.2-hardened.service
@@ -0,0 +1,27 @@
+[Unit]
+Description=The Apache HTTP Server
+After=network.target remote-fs.target nss-lookup.target
+
+[Service]
+EnvironmentFile=/etc/conf.d/apache2
+ExecStart=/usr/sbin/apache2 $APACHE2_OPTS -DFOREGROUND
+ExecReload=/usr/sbin/apache2 $APACHE2_OPTS -k graceful
+ExecStop=/usr/sbin/apache2 $APACHE2_OPTS -k graceful-stop
+# We want systemd to give httpd some time to finish gracefully, but still want
+# it to kill httpd after TimeoutStopSec if something went wrong during the
+# graceful stop. Normally, Systemd sends SIGTERM signal right after the
+# ExecStop, which would kill httpd. We are sending useless SIGCONT here to give
+# httpd time to finish.
+KillSignal=SIGCONT
+PrivateTmp=true
+#Hardening
+PrivateTmp=true
+CapabilityBoundingSet=CAP_CHOWN CAP_SETGID CAP_SETUID CAP_DAC_OVERRIDE CAP_KILL CAP_NET_BIND_SERVICE CAP_IPC_LOCK
+SecureBits=noroot-locked
+ProtectSystem=full
+NoNewPrivileges=true
+PrivateDevices=true
+MemoryDenyWriteExecute=true
+
+[Install]
+WantedBy=multi-user.target