[PATCH] libnetfilter-conntrack: backport patch fixing compilation with 5.15

[Ansuel Smith]

Backport patch fixing compilation with 5.15 and musl provided by Robert Marko

Signed-off-by: Ansuel Smith <ansuelsmth at gmail.com>
---
 package/libs/libnetfilter-conntrack/Makefile  |  2 +-
 ...-fix-build-with-kernel-5_15-and-musl.patch | 56 +++++++++++++++++++
 2 files changed, 57 insertions(+), 1 deletion(-)
 create mode 100644 package/libs/libnetfilter-conntrack/patches/0001-conntrack-fix-build-with-kernel-5_15-and-musl.patch

diff --git a/package/libs/libnetfilter-conntrack/Makefile b/package/libs/libnetfilter-conntrack/Makefile
index 0cfb19f1..50432e9c 100644
--- a/package/libs/libnetfilter-conntrack/Makefile
+++ b/package/libs/libnetfilter-conntrack/Makefile
@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=libnetfilter_conntrack
 PKG_VERSION:=1.0.9
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
 PKG_SOURCE_URL:=https://www.netfilter.org/projects/libnetfilter_conntrack/files
diff --git a/package/libs/libnetfilter-conntrack/patches/0001-conntrack-fix-build-with-kernel-5_15-and-musl.patch b/package/libs/libnetfilter-conntrack/patches/0001-conntrack-fix-build-with-kernel-5_15-and-musl.patch
new file mode 100644
index 00000000..e21d5da5
--- /dev/null
+++ b/package/libs/libnetfilter-conntrack/patches/0001-conntrack-fix-build-with-kernel-5_15-and-musl.patch
@@ -0,0 +1,56 @@
+From 21ee35dde73aec5eba35290587d479218c6dd824 Mon Sep 17 00:00:00 2001
+From: Robert Marko <robimarko at gmail.com>
+Date: Thu, 24 Feb 2022 15:01:11 +0100
+Subject: conntrack: fix build with kernel 5.15 and musl
+
+Currently, with kernel 5.15 headers and musl building is failing with
+redefinition errors due to a conflict between the kernel and musl headers.
+
+Musl is able to suppres the conflicting kernel header definitions if they
+are included after the standard libc ones, however since ICMP definitions
+were moved into a separate internal header to avoid duplication this has
+stopped working and is breaking the builds.
+
+It seems that the issue is that <netinet/in.h> which contains the UAPI
+suppression defines is included in the internal.h header and not in the
+proto.h which actually includes the kernel ICMP headers and thus UAPI
+supression defines are not present.
+
+Solve this by moving the <netinet/in.h> include before the ICMP kernel
+includes in the proto.h
+
+Fixes: bc1cb4b11403 ("conntrack: Move icmp request>reply type mapping to common file")
+Signed-off-by: Robert Marko <robimarko at gmail.com>
+Signed-off-by: Florian Westphal <fw at strlen.de>
+---
+ include/internal/internal.h | 1 -
+ include/internal/proto.h    | 1 +
+ 2 files changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/include/internal/internal.h b/include/internal/internal.h
+index 2ef8a90..7cd7c44 100644
+--- a/include/internal/internal.h
++++ b/include/internal/internal.h
+@@ -14,7 +14,6 @@
+ #include <arpa/inet.h>
+ #include <time.h>
+ #include <errno.h>
+-#include <netinet/in.h>
+ 
+ #include <libnfnetlink/libnfnetlink.h>
+ #include <libnetfilter_conntrack/libnetfilter_conntrack.h>
+diff --git a/include/internal/proto.h b/include/internal/proto.h
+index 40e7bfe..60a5f4e 100644
+--- a/include/internal/proto.h
++++ b/include/internal/proto.h
+@@ -2,6 +2,7 @@
+ #define _NFCT_PROTO_H_
+ 
+ #include <stdint.h>
++#include <netinet/in.h>
+ #include <linux/icmp.h>
+ #include <linux/icmpv6.h>
+ 
+-- 
+cgit v1.2.3
+
-- 
2.34.1