[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>
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 @@
*/
#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 @@
* 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 @@
__u16 dst0;
__u16 srcrt;
__u16 dst1;
+ __u16 lastopt;
};
#define IP6CB(skb) ((struct inet6_skb_parm*)((skb)->cb))
@@ -234,14 +235,19 @@
/* 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 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;