patch-2.1.8 linux/include/linux/ipv6.h

• Lines: 106
• Date: Thu Nov 7 19:53:38 1996
• Orig file: v2.1.7/linux/include/linux/ipv6.h
• Orig date: Thu Jan 1 02:00:00 1970

diff -u --recursive --new-file v2.1.7/linux/include/linux/ipv6.h linux/include/linux/ipv6.h
@@ -0,0 +1,105 @@
+#ifndef _IPV6_H
+#define _IPV6_H
+
+#include <linux/in6.h>
+#include <asm/byteorder.h>
+
+/*
+ *	IPv6 fixed header
+ */
+
+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];
+
+	__u16			payload_len;
+	__u8			nexthdr;
+	__u8			hop_limit;
+
+	struct	in6_addr	saddr;
+	struct	in6_addr	daddr;
+};
+
+struct in6_ifreq {
+	struct in6_addr	addr;
+	__u32		prefix_len;
+	char		devname[8]; 
+};
+
+/*
+ *	Advanced API
+ *	source interface/address selection, source routing, etc...
+ *	*under construction*
+ */
+
+
+struct in6_pktinfo {
+	int		ipi6_ifindex;
+	struct in6_addr	ipi6_addr;
+};
+
+#define IPV6_SRCRT_STRICT	0x01	/* this hop must be a neighbor	*/
+#define IPV6_SRCRT_TYPE_0	0	/* IPv6 type 0 Routing Header	*/
+
+/*
+ *	routing header
+ */
+struct ipv6_rt_hdr {
+	__u8		nexthdr;
+	__u8		hdrlen;
+	__u8		type;
+	__u8		segments_left;
+
+	/*
+	 *	type specific data
+	 *	variable length field
+	 */
+};
+
+/*
+ *	routing header type 0 (used in cmsghdr struct)
+ */
+
+struct rt0_hdr {
+	struct ipv6_rt_hdr	rt_hdr;
+	__u32			bitmap;		/* strict/loose bit map */
+	struct in6_addr		addr[0];
+
+#define rt0_type		rt_hdr.type;
+};
+
+#ifdef __KERNEL__
+
+/*
+ *	The length of this struct cannot be greater than the length of
+ *	the proto_priv field in a sk_buff which is currently
+ *	defined to be 16 bytes.
+ *	Pointers take upto 8 bytes (sizeof(void *) is 8 on the alpha).
+ */
+struct ipv6_options 
+{
+	/* length of extension headers   */
+
+	__u16			opt_flen;	/* after fragment hdr */
+	__u16			opt_nflen;	/* before fragment hdr */
+
+	/* 
+	 * protocol options 
+	 * usualy carried in IPv6 extension headers
+	 */
+
+	struct ipv6_rt_hdr		*srcrt;	/* Routing Header */
+
+};
+
+#endif
+
+#endif