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-rw-r--r--include/net/ip_fib.h27
-rw-r--r--include/net/netns/ipv4.h1
2 files changed, 27 insertions, 1 deletions
diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h
index 15e19c5c6f26..8812582a94d5 100644
--- a/include/net/ip_fib.h
+++ b/include/net/ip_fib.h
@@ -293,6 +293,13 @@ static inline unsigned int fib4_rules_seq_read(struct net *net)
return 0;
}
+static inline bool fib4_rules_early_flow_dissect(struct net *net,
+ struct sk_buff *skb,
+ struct flowi4 *fl4,
+ struct flow_keys *flkeys)
+{
+ return false;
+}
#else /* CONFIG_IP_MULTIPLE_TABLES */
int __net_init fib4_rules_init(struct net *net);
void __net_exit fib4_rules_exit(struct net *net);
@@ -341,6 +348,24 @@ bool fib4_rule_default(const struct fib_rule *rule);
int fib4_rules_dump(struct net *net, struct notifier_block *nb);
unsigned int fib4_rules_seq_read(struct net *net);
+static inline bool fib4_rules_early_flow_dissect(struct net *net,
+ struct sk_buff *skb,
+ struct flowi4 *fl4,
+ struct flow_keys *flkeys)
+{
+ unsigned int flag = FLOW_DISSECTOR_F_STOP_AT_ENCAP;
+
+ if (!net->ipv4.fib_rules_require_fldissect)
+ return false;
+
+ skb_flow_dissect_flow_keys(skb, flkeys, flag);
+ fl4->fl4_sport = flkeys->ports.src;
+ fl4->fl4_dport = flkeys->ports.dst;
+ fl4->flowi4_proto = flkeys->basic.ip_proto;
+
+ return true;
+}
+
#endif /* CONFIG_IP_MULTIPLE_TABLES */
/* Exported by fib_frontend.c */
@@ -371,7 +396,7 @@ int fib_sync_up(struct net_device *dev, unsigned int nh_flags);
#ifdef CONFIG_IP_ROUTE_MULTIPATH
int fib_multipath_hash(const struct fib_info *fi, const struct flowi4 *fl4,
- const struct sk_buff *skb);
+ const struct sk_buff *skb, struct flow_keys *flkeys);
#endif
void fib_select_multipath(struct fib_result *res, int hash);
void fib_select_path(struct net *net, struct fib_result *res,
diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
index 44668c29701a..3a970e429ab6 100644
--- a/include/net/netns/ipv4.h
+++ b/include/net/netns/ipv4.h
@@ -52,6 +52,7 @@ struct netns_ipv4 {
#ifdef CONFIG_IP_MULTIPLE_TABLES
struct fib_rules_ops *rules_ops;
bool fib_has_custom_rules;
+ unsigned int fib_rules_require_fldissect;
struct fib_table __rcu *fib_main;
struct fib_table __rcu *fib_default;
#endif