1 files changed, 19 insertions, 0 deletions

diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 979bf6c13141..5af66b26ebdd 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -271,6 +271,15 @@ struct ipv6_txoptions *ipv6_fixup_options(struct ipv6_txoptions *opt_space,
 
 extern bool ipv6_opt_accepted(const struct sock *sk, const struct sk_buff *skb);
 
+static inline bool ipv6_accept_ra(struct inet6_dev *idev)
+{
+        /* If forwarding is enabled, RA are not accepted unless the special
+         * hybrid mode (accept_ra=2) is enabled.
+         */
+        return idev->cnf.forwarding ? idev->cnf.accept_ra == 2 :
+            idev->cnf.accept_ra;
+}
+
 #if IS_ENABLED(CONFIG_IPV6)
 static inline int ip6_frag_nqueues(struct net *net)
 {
@@ -630,6 +639,16 @@ extern int			ipv6_skip_exthdr(const struct sk_buff *, int start,
 
 extern bool                     ipv6_ext_hdr(u8 nexthdr);
 
+enum {
+        IP6_FH_F_FRAG           = (1 << 0),
+        IP6_FH_F_AUTH           = (1 << 1),
+        IP6_FH_F_SKIP_RH        = (1 << 2),
+};
+
+/* find specified header and get offset to it */
+extern int ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset,
+                         int target, unsigned short *fragoff, int *fragflg);
+
 extern int ipv6_find_tlv(struct sk_buff *skb, int offset, int type);
 
 extern struct in6_addr *fl6_update_dst(struct flowi6 *fl6,