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Diffstat (limited to 'include/net/ip.h')
-rw-r--r--include/net/ip.h31
1 files changed, 29 insertions, 2 deletions
diff --git a/include/net/ip.h b/include/net/ip.h
index e44b1a44f67a..72593e171d14 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -420,8 +420,35 @@ static inline unsigned int ip_skb_dst_mtu(struct sock *sk,
return min(READ_ONCE(skb_dst(skb)->dev->mtu), IP_MAX_MTU);
}
-int ip_metrics_convert(struct net *net, struct nlattr *fc_mx, int fc_mx_len,
- u32 *metrics);
+struct dst_metrics *ip_fib_metrics_init(struct net *net, struct nlattr *fc_mx,
+ int fc_mx_len);
+static inline void ip_fib_metrics_put(struct dst_metrics *fib_metrics)
+{
+ if (fib_metrics != &dst_default_metrics &&
+ refcount_dec_and_test(&fib_metrics->refcnt))
+ kfree(fib_metrics);
+}
+
+/* ipv4 and ipv6 both use refcounted metrics if it is not the default */
+static inline
+void ip_dst_init_metrics(struct dst_entry *dst, struct dst_metrics *fib_metrics)
+{
+ dst_init_metrics(dst, fib_metrics->metrics, true);
+
+ if (fib_metrics != &dst_default_metrics) {
+ dst->_metrics |= DST_METRICS_REFCOUNTED;
+ refcount_inc(&fib_metrics->refcnt);
+ }
+}
+
+static inline
+void ip_dst_metrics_put(struct dst_entry *dst)
+{
+ struct dst_metrics *p = (struct dst_metrics *)DST_METRICS_PTR(dst);
+
+ if (p != &dst_default_metrics && refcount_dec_and_test(&p->refcnt))
+ kfree(p);
+}
u32 ip_idents_reserve(u32 hash, int segs);
void __ip_select_ident(struct net *net, struct iphdr *iph, int segs);