From: Tobias Brunner <tobias@strongswan.org>
Date: Mon, 9 Jan 2023 15:57:53 +0000 (+0100)
Subject: kernel-netlink: Define SOL_NETLINK for old versions of socket.h
X-Git-Tag: android-2.4.0~10
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=41b0dff92b349d11e0db3b04751267c5d3ffe42a;p=thirdparty%2Fstrongswan.git

kernel-netlink: Define SOL_NETLINK for old versions of socket.h

While the kernel defines it since 2005 (2.6.14), some older versions of
socket.h shipped with C libraries might not.  In particular, glibc only
added it with 2.24 in 2016.

Closes strongswan/strongswan#1503
---

diff --git a/src/libcharon/plugins/kernel_netlink/kernel_netlink_shared.c b/src/libcharon/plugins/kernel_netlink/kernel_netlink_shared.c
index 9b70705394..abb9d16f80 100644
--- a/src/libcharon/plugins/kernel_netlink/kernel_netlink_shared.c
+++ b/src/libcharon/plugins/kernel_netlink/kernel_netlink_shared.c
@@ -52,6 +52,11 @@
 #include <collections/array.h>
 #include <collections/hashtable.h>
 
+/* some older versions of socket.h don't define this yet */
+#ifndef SOL_NETLINK
+#define SOL_NETLINK 270
+#endif
+
 typedef struct private_netlink_socket_t private_netlink_socket_t;
 
 /**