net-vpn/libreswan: fix building without curl

Backport upstream patch to allow building without curl support.

Closes: https://bugs.gentoo.org/941388
Signed-off-by: Hans de Graaff <graaff@gentoo.org>

2 files changed, 209 insertions, 0 deletions

diff --git a/net-vpn/libreswan/files/libreswan-5.1-without-libcurl.patch b/net-vpn/libreswan/files/libreswan-5.1-without-libcurl.patch
new file mode 100644
index 000000000000..e83683324e83
--- /dev/null
+++ b/net-vpn/libreswan/files/libreswan-5.1-without-libcurl.patch
@@ -0,0 +1,72 @@
+From 9f0336036caa92eb5f82841d200027c95991fd13 Mon Sep 17 00:00:00 2001
+From: Andrew Cagney <cagney@gnu.org>
+Date: Mon, 14 Oct 2024 11:09:17 -0400
+Subject: [PATCH] building: fix USE_LIBCURL=false
+
+close #1845 Libreswan 5.1 no longer compiles without libcurl support
+---
+ programs/pluto/fetch.c     | 13 ++++---------
+ programs/pluto/rcv_whack.c |  2 --
+ 2 files changed, 4 insertions(+), 11 deletions(-)
+
+diff --git a/programs/pluto/fetch.c b/programs/pluto/fetch.c
+index 299b7ff405..9bc60b9801 100644
+--- a/programs/pluto/fetch.c
++++ b/programs/pluto/fetch.c
+@@ -19,8 +19,6 @@
+  *
+  */
+ 
+-#if defined(LIBCURL) || defined(LIBLDAP)	/* essentially whole body of file */
+-
+ #include <pthread.h>    /* Must be the first include file */
+ #include <stdlib.h>
+ #include <errno.h>
+@@ -30,7 +28,6 @@
+ #include <cert.h>
+ #include <certdb.h>
+ 
+-
+ #include "constants.h"
+ #include "defs.h"
+ #include "log.h"
+@@ -153,9 +150,11 @@ static err_t fetch_curl(const char *url, chunk_t *blob, struct logger *logger)
+ 
+ #else	/* LIBCURL */
+ 
+-static err_t fetch_curl(const char *url UNUSED,
+-			chunk_t *blob UNUSED)
++static err_t fetch_curl(const char *url,
++			chunk_t *blob,
++			struct logger *logger)
+ {
++	ldbg(logger, "%s() ignoring %s %p", __func__, url, blob->ptr);
+ 	return "not compiled with libcurl support";
+ }
+ 
+@@ -578,7 +577,3 @@ void free_crl_fetch(void)
+ 	}
+ #endif
+ }
+-
+-#else /* defined(LIBCURL) || defined(LIBLDAP) */
+-/* we'll just ignore for now - this is all going away anyway */
+-#endif
+diff --git a/programs/pluto/rcv_whack.c b/programs/pluto/rcv_whack.c
+index 7959e9ec1f..a7f811f319 100644
+--- a/programs/pluto/rcv_whack.c
++++ b/programs/pluto/rcv_whack.c
+@@ -522,13 +522,11 @@ static void whack_process(const struct whack_message *const m, struct show *s)
+ 		dbg_whack(s, "purgeocsp: stop:");
+ 	}
+ 
+-#if defined(LIBCURL) || defined(LIBLDAP)
+ 	if (m->whack_fetchcrls) {
+ 		dbg_whack(s, "fetchcrls: start:");
+ 		whack_fetchcrls(s);
+ 		dbg_whack(s, "fetchcrls: stop:");
+ 	}
+-#endif
+ 
+ 	if (m->whack_rereadcerts) {
+ 		dbg_whack(s, "rereadcerts: start:");
diff --git a/net-vpn/libreswan/libreswan-5.1-r1.ebuild b/net-vpn/libreswan/libreswan-5.1-r1.ebuild
new file mode 100644
index 000000000000..1e8b49a3595c
--- /dev/null
+++ b/net-vpn/libreswan/libreswan-5.1-r1.ebuild
@@ -0,0 +1,137 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit systemd flag-o-matic toolchain-funcs tmpfiles
+
+DESCRIPTION="IPsec implementation for Linux, fork of Openswan"
+HOMEPAGE="https://libreswan.org/"
+SRC_URI="https://download.libreswan.org/${P}.tar.gz"
+
+LICENSE="GPL-2 BSD-4 RSA DES"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~arm64 ~ppc ~x86"
+IUSE="caps curl dnssec +ikev1 ldap networkmanager pam seccomp selinux systemd test"
+RESTRICT="!test? ( test )"
+
+DEPEND="
+	dev-libs/gmp:0=
+	dev-libs/libevent:0=
+	dev-libs/nspr
+	>=dev-libs/nss-3.42
+	>=sys-kernel/linux-headers-4.19
+	virtual/libcrypt:=
+	caps? ( sys-libs/libcap-ng )
+	curl? ( net-misc/curl )
+	dnssec? ( >=net-dns/unbound-1.9.1-r1:= net-libs/ldns:= net-dns/dnssec-root )
+	ldap? ( net-nds/openldap:= )
+	pam? ( sys-libs/pam )
+	seccomp? ( sys-libs/libseccomp )
+	selinux? ( sys-libs/libselinux )
+	systemd? ( sys-apps/systemd:0= )
+"
+BDEPEND="
+	app-text/docbook-xml-dtd:4.1.2
+	app-text/xmlto
+	dev-libs/nss
+	sys-devel/bison
+	sys-devel/flex
+	virtual/pkgconfig
+	test? ( dev-python/setproctitle )
+"
+RDEPEND="${DEPEND}
+	dev-libs/nss[utils(+)]
+	sys-apps/iproute2
+	!net-vpn/strongswan
+	selinux? ( sec-policy/selinux-ipsec )
+"
+DEPEND+=" elibc_musl? ( sys-libs/queue-standalone )"
+
+PATCHES=( "${FILESDIR}/${P}-without-libcurl.patch" )
+
+usetf() {
+	usex "$1" true false
+}
+
+src_prepare() {
+	sed -i -e 's:/sbin/runscript:/sbin/openrc-run:' initsystems/openrc/ipsec.init.in || die
+	sed -i -e '/^install/ s/postcheck//' -e '/^doinstall/ s/oldinitdcheck//' initsystems/systemd/Makefile || die
+	default
+}
+
+src_configure() {
+	tc-export AR CC
+
+	use elibc_musl && append-cflags -DGLIBC_KERN_FLIP_HEADERS
+
+	export PREFIX=/usr
+	export DEFAULT_DNSSEC_ROOTKEY_FILE=/etc/dnssec/icannbundle.pem
+	export EXAMPLE_IPSEC_SYSCONFDIR=/usr/share/doc/${PF}
+	export FINALEXAMPLECONFDIR=/usr/share/doc/${PF}
+	export INITSYSTEM=$(usex systemd systemd openrc)
+	export INITDDIRS=
+	export INITDDIR_DEFAULT=/etc/init.d
+	export USERCOMPILE=${CFLAGS}
+	export USERLINK=${LDFLAGS}
+	export USE_DNSSEC=$(usetf dnssec)
+	export USE_IKEV1=$(usetf ikev1)
+	export USE_LABELED_IPSEC=$(usetf selinux)
+	export USE_LIBCAP_NG=$(usetf caps)
+	export USE_LIBCURL=$(usetf curl)
+	export USE_LINUX_AUDIT=$(usetf selinux)
+	export USE_LDAP=$(usetf ldap)
+	export USE_NM=$(usetf networkmanager)
+	export USE_SECCOMP=$(usetf seccomp)
+	export USE_SYSTEMD_WATCHDOG=$(usetf systemd)
+	export SD_WATCHDOGSEC=$(usex systemd 200 0)
+	export USE_AUTHPAM=$(usetf pam)
+	export DEBUG_CFLAGS=
+	export OPTIMIZE_CFLAGS=
+	export WERROR_CFLAGS=
+}
+
+src_compile() {
+	emake all
+	emake -C initsystems \
+		INITSYSTEM=systemd \
+		SYSTEMUNITDIR="$(systemd_get_systemunitdir)" \
+		SYSTEMTMPFILESDIR="/usr/lib/tmpfiles.d" \
+		all
+}
+
+src_test() {
+	: # integration tests only that require set of kvms to be set up
+}
+
+src_install() {
+	default
+	emake -C initsystems \
+		  INITSYSTEM=systemd \
+		  SYSTEMUNITDIR="$(systemd_get_systemunitdir)" \
+		  SYSTEMTMPFILESDIR="/usr/lib/tmpfiles.d" \
+		  DESTDIR="${D}" \
+		  install
+
+	echo "include /etc/ipsec.d/*.secrets" > "${D}"/etc/ipsec.secrets
+	fperms 0600 /etc/ipsec.secrets
+
+	keepdir /var/lib/ipsec/nss
+	fperms 0700 /var/lib/ipsec/nss
+
+	dodoc -r docs
+
+	find "${D}" -type d -empty -delete || die
+}
+
+pkg_postinst() {
+	tmpfiles_process libreswan.conf
+
+	local IPSEC_CONFDIR=${ROOT}/var/lib/ipsec/nss
+	if [[ ! -f ${IPSEC_CONFDIR}/cert8.db && ! -f ${IPSEC_CONFDIR}/cert9.db ]] ; then
+		ebegin "Setting up NSS database in ${IPSEC_CONFDIR} with empty password"
+		certutil -N -d "${IPSEC_CONFDIR}" --empty-password
+		eend $?
+		einfo "To set a password: certutil -W -d sql:${IPSEC_CONFDIR}"
+	fi
+}