From: Eric Leblond <eric@regit.org>
Date: Mon, 28 Dec 2020 08:41:09 +0000 (+0100)
Subject: ebpf: avoid need of 32 bit header
X-Git-Tag: suricata-7.0.0-beta1~1922
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dfe5785bfa630905ae52267baeae5453231f9b2d;p=thirdparty%2Fsuricata.git

ebpf: avoid need of 32 bit header

Compilation of xdp_lb.c was failing in some case with the following
error:

/usr/include/x86_64-linux-gnu/gnu/stubs.h:7:11: fatal error: 'gnu/stubs-32.h' file not found

This patch add some define to be able to skip recursive inclusion of
header files leading to the problem.
---

diff --git a/ebpf/xdp_lb.c b/ebpf/xdp_lb.c
index 2ee924572d..dc1d8660c4 100644
--- a/ebpf/xdp_lb.c
+++ b/ebpf/xdp_lb.c
@@ -23,6 +23,9 @@
 #include <linux/if_ether.h>
 #include <linux/if_packet.h>
 #include <linux/if_vlan.h>
+/* Workaround to avoid the need of 32bit headers */
+#define _LINUX_IF_H
+#define IFNAMSIZ 16
 #include <linux/if_tunnel.h>
 #include <linux/ip.h>
 #include <linux/ipv6.h>