build: move copy of linux headers to private directory

libnl3 contains a private copy of some kernel header files.

Normally, users are expected to install libnl and specify
-I$PREFIX/include/libnl3 as include path. As the private kernel
header files are not installed, this works fine.

However, it can be convenient to build against the libnl source
directory, without installing libnl. In this case, the private kernel
header files shaddow the system provided ones. This is undesired.

Move these files to a different directory to avoid this clash.

http://lists.infradead.org/pipermail/libnl/2014-September/001645.html

Signed-off-by: Thomas Haller <thaller@redhat.com>
Acked-by: Thomas Graf <tgraf@suug.ch>

1 files changed, 146 insertions, 0 deletions

diff --git a/include/linux-private/linux/ipv6.h b/include/linux-private/linux/ipv6.h
new file mode 100644
index 0000000..f16349d
--- /dev/null
+++ b/include/linux-private/linux/ipv6.h
@@ -0,0 +1,146 @@
+#ifndef _IPV6_H
+#define _IPV6_H
+
+#include <asm/byteorder.h>
+
+/* The latest drafts declared increase in minimal mtu up to 1280. */
+
+#define IPV6_MIN_MTU	1280
+
+/*
+ *	Advanced API
+ *	source interface/address selection, source routing, etc...
+ *	*under construction*
+ */
+
+
+#define IPV6_SRCRT_STRICT	0x01	/* Deprecated; will be removed */
+#define IPV6_SRCRT_TYPE_0	0	/* Deprecated; will be removed */
+#define IPV6_SRCRT_TYPE_2	2	/* IPv6 type 2 Routing Header	*/
+
+/*
+ *	routing header
+ */
+struct ipv6_rt_hdr {
+	__u8		nexthdr;
+	__u8		hdrlen;
+	__u8		type;
+	__u8		segments_left;
+
+	/*
+	 *	type specific data
+	 *	variable length field
+	 */
+};
+
+
+struct ipv6_opt_hdr {
+	__u8 		nexthdr;
+	__u8 		hdrlen;
+	/* 
+	 * TLV encoded option data follows.
+	 */
+} __attribute__((packed));	/* required for some archs */
+
+#define ipv6_destopt_hdr ipv6_opt_hdr
+#define ipv6_hopopt_hdr  ipv6_opt_hdr
+
+
+/*
+ *	routing header type 0 (used in cmsghdr struct)
+ */
+
+struct rt0_hdr {
+	struct ipv6_rt_hdr	rt_hdr;
+	__u32			reserved;
+	struct in6_addr		addr[0];
+
+#define rt0_type		rt_hdr.type
+};
+
+/*
+ *	routing header type 2
+ */
+
+struct rt2_hdr {
+	struct ipv6_rt_hdr	rt_hdr;
+	__u32			reserved;
+	struct in6_addr		addr;
+
+#define rt2_type		rt_hdr.type
+};
+
+/*
+ *	home address option in destination options header
+ */
+
+struct ipv6_destopt_hao {
+	__u8			type;
+	__u8			length;
+	struct in6_addr		addr;
+} __attribute__((packed));
+
+/*
+ *	IPv6 fixed header
+ *
+ *	BEWARE, it is incorrect. The first 4 bits of flow_lbl
+ *	are glued to priority now, forming "class".
+ */
+
+struct ipv6hdr {
+#if defined(__LITTLE_ENDIAN_BITFIELD)
+	__u8			priority:4,
+				version:4;
+#elif defined(__BIG_ENDIAN_BITFIELD)
+	__u8			version:4,
+				priority:4;
+#else
+#error	"Please fix <asm/byteorder.h>"
+#endif
+	__u8			flow_lbl[3];
+
+	__be16			payload_len;
+	__u8			nexthdr;
+	__u8			hop_limit;
+
+	struct	in6_addr	saddr;
+	struct	in6_addr	daddr;
+};
+
+
+/* index values for the variables in ipv6_devconf */
+enum {
+	DEVCONF_FORWARDING = 0,
+	DEVCONF_HOPLIMIT,
+	DEVCONF_MTU6,
+	DEVCONF_ACCEPT_RA,
+	DEVCONF_ACCEPT_REDIRECTS,
+	DEVCONF_AUTOCONF,
+	DEVCONF_DAD_TRANSMITS,
+	DEVCONF_RTR_SOLICITS,
+	DEVCONF_RTR_SOLICIT_INTERVAL,
+	DEVCONF_RTR_SOLICIT_DELAY,
+	DEVCONF_USE_TEMPADDR,
+	DEVCONF_TEMP_VALID_LFT,
+	DEVCONF_TEMP_PREFERED_LFT,
+	DEVCONF_REGEN_MAX_RETRY,
+	DEVCONF_MAX_DESYNC_FACTOR,
+	DEVCONF_MAX_ADDRESSES,
+	DEVCONF_FORCE_MLD_VERSION,
+	DEVCONF_ACCEPT_RA_DEFRTR,
+	DEVCONF_ACCEPT_RA_PINFO,
+	DEVCONF_ACCEPT_RA_RTR_PREF,
+	DEVCONF_RTR_PROBE_INTERVAL,
+	DEVCONF_ACCEPT_RA_RT_INFO_MAX_PLEN,
+	DEVCONF_PROXY_NDP,
+	DEVCONF_OPTIMISTIC_DAD,
+	DEVCONF_ACCEPT_SOURCE_ROUTE,
+	DEVCONF_MC_FORWARDING,
+	DEVCONF_DISABLE_IPV6,
+	DEVCONF_ACCEPT_DAD,
+	DEVCONF_FORCE_TLLAO,
+	DEVCONF_MAX
+};
+
+
+#endif /* _IPV6_H */