[IPV6]: Note values allocated for ip6_tables.

To avoid future conflicts, add a note values allocated for ip6_tables.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>

1 files changed, 14 insertions, 0 deletions

diff --git a/include/linux/in6.h b/include/linux/in6.h
index 50cdc3ad61a7..304aaedea305 100644
--- a/include/linux/in6.h
+++ b/include/linux/in6.h
@@ -221,6 +221,20 @@ struct in6_flowlabel_req
 #define IPV6_DONTFRAG           62
 #define IPV6_USE_MIN_MTU        63
 #endif
+
+/*
+ * Netfilter
+ *
+ * Following socket options are used in ip6_tables;
+ * see include/linux/netfilter_ipv6/ip6_tables.h.
+ *
+ * IP6T_SO_SET_REPLACE / IP6T_SO_GET_INFO               64
+ * IP6T_SO_SET_ADD_COUNTERS / IP6T_SO_GET_ENTRIES       65
+ */
+
+/*
+ * Advanced API (RFC3542) (2)
+ */
 #define IPV6_RECVTCLASS         66
 #define IPV6_TCLASS             67