61 lines
2.2 KiB
Diff
61 lines
2.2 KiB
Diff
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From 71a517e922c91e2c6cad28d339a081b5f6de0932 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?J=C3=B6rg=20Krause?= <joerg.krause@embedded.rocks>
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Date: Tue, 8 Mar 2016 21:07:12 +0100
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Subject: [PATCH] vlan: fix musl libc conflict with Linux kernel headers
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Due to both <netinet/in.h> (in "utils/includes.h") and <linux/in6.h> (in
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<linux/if_bridge.h>) being included, the in6_addr is being redefined: once from
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the C library headers and once from the Linux kernel headers. This causes some
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build failures with for example the musl C library:
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In file included from /usr/include/linux/if_bridge.h:18,
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from ../src/ap/vlan_init.c:17:
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/usr/include/linux/in6.h:32: error: redefinition of 'struct in6_addr'
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/usr/include/linux/in6.h:49: error: redefinition of 'struct sockaddr_in6'
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/usr/include/linux/in6.h:59: error: redefinition of 'struct ipv6_mreq'
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Mixing C library and Linux kernel headers is a bit problematic [1] and should be
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avoided if possible [2]. In order to fix this, define just the macros needed
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from <linux/if_bridge.h> as done in Busybox for the brctl applet [3].
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Upstream status: Pending [4]
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[1] https://sourceware.org/bugzilla/show_bug.cgi?id=15850
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[2] http://www.openwall.com/lists/musl/2015/10/06/1
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[3] https://git.busybox.net/busybox/commit/?id=5fa6d1a632505789409a2ba6cf8e112529f9db18
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[4] http://lists.infradead.org/pipermail/hostap/2016-March/035357.html
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Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
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---
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src/ap/vlan_init.c | 11 ++++++++++-
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1 file changed, 10 insertions(+), 1 deletion(-)
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diff --git a/src/ap/vlan_init.c b/src/ap/vlan_init.c
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index 1670c0d..f2e3da0 100644
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--- a/src/ap/vlan_init.c
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+++ b/src/ap/vlan_init.c
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@@ -14,7 +14,16 @@
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#include <sys/ioctl.h>
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#include <linux/sockios.h>
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#include <linux/if_vlan.h>
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-#include <linux/if_bridge.h>
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+/* From <linux/if_bridge.h> */
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+#define BRCTL_GET_VERSION 0
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+#define BRCTL_GET_BRIDGES 1
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+#define BRCTL_ADD_BRIDGE 2
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+#define BRCTL_DEL_BRIDGE 3
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+#define BRCTL_ADD_IF 4
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+#define BRCTL_DEL_IF 5
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+#define BRCTL_GET_BRIDGE_INFO 6
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+#define BRCTL_GET_PORT_LIST 7
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+#define BRCTL_SET_BRIDGE_FORWARD_DELAY 8
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#endif /* CONFIG_FULL_DYNAMIC_VLAN */
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#include "utils/common.h"
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--
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2.7.2
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