Adding OpenVPN patchset to work with Haiku (#9300)

* Adding OpenVPN Patchset

* Update openvpn-2.6.4.patchset

* Update openvpn-2.6.4.patchset

* Update openvpn-2.6.4.patchset

* Update openvpn-2.6.4.patchset

* Update openvpn-2.6.4.recipe

net-vpn/openvpn/openvpn-2.6.4.recipe

@@ -7,10 +7,13 @@ HOMEPAGE="https://openvpn.net"
 COPYRIGHT="2002-2023 OpenVPN Inc"
 LICENSE="OpenVPN
 	GNU GPL v2"
-REVISION="1"
+REVISION="2"
 SOURCE_URI="https://github.com/OpenVPN/openvpn/archive/refs/tags/v$portVersion.tar.gz"
 CHECKSUM_SHA256="bfab07b900262a990fc4519596b29c380ed5a89216593f04719279715ebd04d3"
 SOURCE_FILENAME="openvpn-$portVersion.tar.gz"
+PATCHES="
+	openvpn-$portVersion.patchset
+	"
 
 ARCHITECTURES="all !x86_gcc2"
 SECONDARY_ARCHITECTURES="x86"

net-vpn/openvpn/patches/openvpn-2.6.4.patchset

@@ -0,0 +1,45 @@
+From c94b287ff24a5b50941ab9e5c00a64f64f809380 Mon Sep 17 00:00:00 2001
+From: Swangeon <swangeon@gmail.com>
+Date: Sun, 27 Aug 2023 15:00:18 -0500
+Subject: [PATCH] Changed configure.ac to recognize Haiku and tun.c to use
+ ifconfig
+
+
+diff --git a/configure.ac b/configure.ac
+index 67f680b..26b3e4b 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -373,6 +373,10 @@ case "$host" in
+ 		have_tap_header="yes"
+ 		ac_cv_header_net_if_h="no"	# exists, but breaks things
+ 		;;
++	*-*-haiku*)
++		AC_DEFINE([TARGET_HAIKU], [1], [Are we running Haiku?])
++		AC_DEFINE_UNQUOTED([TARGET_PREFIX]. ["H"], [Target prefix])
++		;;
+ 	*)
+ 		AC_DEFINE_UNQUOTED([TARGET_PREFIX], ["X"], [Target prefix])
+ 		have_tap_header="yes"
+diff --git a/src/openvpn/tun.c b/src/openvpn/tun.c
+index 2320e8b..2fb0de9 100644
+--- a/src/openvpn/tun.c
++++ b/src/openvpn/tun.c
+@@ -1578,6 +1578,16 @@ do_ifconfig_ipv4(struct tuntap *tt, const char *ifname, int tun_mtu,
+     {
+         windows_set_mtu(tt->adapter_index, AF_INET, tun_mtu);
+     }
++#elif defined (TARGET_HAIKU)
++    {
++        /* example: ifconfig tap0 inet 1.1.1.1 255.255.255.0 mtu 1450 up */
++        // Need to add ifconfig_remote_netmask since right now it is just NULL
++        argv_printf(&argv, "%s %s inet %s 255.255.255.0 mtu %d up", IFCONFIG_PATH,
++            ifname, ifconfig_local, tun_mtu);
++
++        argv_msg(M_INFO, &argv);
++        openvpn_execve_check(&argv, es, S_FATAL, "HAIKU ifconfig failed");
++    }
+ #else  /* if defined(TARGET_LINUX) */
+     msg(M_FATAL, "Sorry, but I don't know how to do 'ifconfig' commands on this operating system.  You should ifconfig your TUN/TAP device manually or use an --up script.");
+ #endif /* if defined(TARGET_LINUX) */
+--
+2.42.0.windows.1