From 333fad5364d6b457c8d837f7d05802d2aaf8a961 Mon Sep 17 00:00:00 2001
From: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Date: Thu, 8 Sep 2005 09:59:17 +0900
Subject: [IPV6]: Support several new sockopt / ancillary data in Advanced API
 (RFC3542).

Support several new socket options / ancillary data:
  IPV6_RECVPKTINFO, IPV6_PKTINFO,
  IPV6_RECVHOPOPTS, IPV6_HOPOPTS,
  IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS,
  IPV6_RECVRTHDR, IPV6_RTHDR,
  IPV6_RECVHOPOPTS, IPV6_HOPOPTS

Old semantics are preserved as IPV6_2292xxxx so that
we can maintain backward compatibility.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
---
 include/linux/in6.h  | 38 ++++++++++++++++++++++++++++++++------
 include/linux/ipv6.h | 10 ++++++++--
 include/net/ipv6.h   |  4 ++++
 3 files changed, 44 insertions(+), 8 deletions(-)

(limited to 'include')

diff --git a/include/linux/in6.h b/include/linux/in6.h
index dcf5720..c11022f 100644
--- a/include/linux/in6.h
+++ b/include/linux/in6.h
@@ -148,13 +148,13 @@ struct in6_flowlabel_req
  */
 
 #define IPV6_ADDRFORM		1
-#define IPV6_PKTINFO		2
-#define IPV6_HOPOPTS		3
-#define IPV6_DSTOPTS		4
-#define IPV6_RTHDR		5
-#define IPV6_PKTOPTIONS		6
+#define IPV6_2292PKTINFO	2
+#define IPV6_2292HOPOPTS	3
+#define IPV6_2292DSTOPTS	4
+#define IPV6_2292RTHDR		5
+#define IPV6_2292PKTOPTIONS	6
 #define IPV6_CHECKSUM		7
-#define IPV6_HOPLIMIT		8
+#define IPV6_2292HOPLIMIT	8
 #define IPV6_NEXTHOP		9
 #define IPV6_AUTHHDR		10	/* obsolete */
 #define IPV6_FLOWINFO		11
@@ -198,4 +198,30 @@ struct in6_flowlabel_req
  * MCAST_MSFILTER		48
  */
 
+/* RFC3542 advanced socket options (50-67) */
+#define IPV6_RECVPKTINFO	50
+#define IPV6_PKTINFO		51
+#if 0
+#define IPV6_RECVPATHMTU	52
+#define IPV6_PATHMTU		53
+#define IPV6_DONTFRAG		54
+#define IPV6_USE_MIN_MTU	55
+#endif
+#define IPV6_RECVHOPOPTS	56
+#define IPV6_HOPOPTS		57
+#if 0
+#define IPV6_RECVRTHDRDSTOPTS	58	/* Unused, see net/ipv6/datagram.c */
+#endif
+#define IPV6_RTHDRDSTOPTS	59
+#define IPV6_RECVRTHDR		60
+#define IPV6_RTHDR		61
+#define IPV6_RECVDSTOPTS	62
+#define IPV6_DSTOPTS		63
+#define IPV6_RECVHOPLIMIT	64
+#define IPV6_HOPLIMIT		65
+#if 0
+#define IPV6_RECVTCLASS		66
+#define IPV6_TCLASS		67
+#endif
+
 #endif
diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index 3c7dbc6..2581f1c 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -189,6 +189,7 @@ struct inet6_skb_parm {
 	__u16			dst0;
 	__u16			srcrt;
 	__u16			dst1;
+	__u16			lastopt;
 };
 
 #define IP6CB(skb)	((struct inet6_skb_parm*)((skb)->cb))
@@ -234,14 +235,19 @@ struct ipv6_pinfo {
 	/* pktoption flags */
 	union {
 		struct {
-			__u8	srcrt:2,
+			__u16	srcrt:2,
+				osrcrt:2,
 			        rxinfo:1,
+			        rxoinfo:1,
 				rxhlim:1,
+				rxohlim:1,
 				hopopts:1,
+				ohopopts:1,
 				dstopts:1,
+				odstopts:1,
                                 rxflow:1;
 		} bits;
-		__u8		all;
+		__u16		all;
 	} rxopt;
 
 	/* sockopt flags */
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 3203eaf..8a9fe94 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -233,6 +233,10 @@ extern int 			ip6_ra_control(struct sock *sk, int sel,
 extern int			ipv6_parse_hopopts(struct sk_buff *skb, int);
 
 extern struct ipv6_txoptions *  ipv6_dup_options(struct sock *sk, struct ipv6_txoptions *opt);
+extern struct ipv6_txoptions *	ipv6_renew_options(struct sock *sk, struct ipv6_txoptions *opt,
+						   int newtype,
+						   struct ipv6_opt_hdr __user *newopt,
+						   int newoptlen);
 
 extern int ip6_frag_nqueues;
 extern atomic_t ip6_frag_mem;
-- 
cgit v1.1