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Diffstat (limited to 'include/net/ip.h')
-rw-r--r--include/net/ip.h15
1 files changed, 9 insertions, 6 deletions
diff --git a/include/net/ip.h b/include/net/ip.h
index 47ed6d23853d..befcba575129 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -59,6 +59,7 @@ struct inet_skb_parm {
#define IPSKB_L3SLAVE BIT(7)
#define IPSKB_NOPOLICY BIT(8)
#define IPSKB_MULTIPATH BIT(9)
+#define IPSKB_MCROUTE BIT(10)
u16 frag_max_size;
};
@@ -167,6 +168,7 @@ void ip_list_rcv(struct list_head *head, struct packet_type *pt,
int ip_local_deliver(struct sk_buff *skb);
void ip_protocol_deliver_rcu(struct net *net, struct sk_buff *skb, int proto);
int ip_mr_input(struct sk_buff *skb);
+int ip_mr_output(struct net *net, struct sock *sk, struct sk_buff *skb);
int ip_output(struct net *net, struct sock *sk, struct sk_buff *skb);
int ip_mc_output(struct net *net, struct sock *sk, struct sk_buff *skb);
int ip_do_fragment(struct net *net, struct sock *sk, struct sk_buff *skb,
@@ -470,12 +472,12 @@ static inline unsigned int ip_dst_mtu_maybe_forward(const struct dst_entry *dst,
rcu_read_lock();
- net = dev_net_rcu(dst->dev);
+ net = dev_net_rcu(dst_dev(dst));
if (READ_ONCE(net->ipv4.sysctl_ip_fwd_use_pmtu) ||
ip_mtu_locked(dst) ||
!forwarding) {
mtu = rt->rt_pmtu;
- if (mtu && time_before(jiffies, rt->dst.expires))
+ if (mtu && time_before(jiffies, READ_ONCE(rt->dst.expires)))
goto out;
}
@@ -484,7 +486,7 @@ static inline unsigned int ip_dst_mtu_maybe_forward(const struct dst_entry *dst,
if (mtu)
goto out;
- mtu = READ_ONCE(dst->dev->mtu);
+ mtu = READ_ONCE(dst_dev(dst)->mtu);
if (unlikely(ip_mtu_locked(dst))) {
if (rt->rt_uses_gateway && mtu > 576)
@@ -504,16 +506,17 @@ out:
static inline unsigned int ip_skb_dst_mtu(struct sock *sk,
const struct sk_buff *skb)
{
+ const struct dst_entry *dst = skb_dst(skb);
unsigned int mtu;
if (!sk || !sk_fullsock(sk) || ip_sk_use_pmtu(sk)) {
bool forwarding = IPCB(skb)->flags & IPSKB_FORWARDED;
- return ip_dst_mtu_maybe_forward(skb_dst(skb), forwarding);
+ return ip_dst_mtu_maybe_forward(dst, forwarding);
}
- mtu = min(READ_ONCE(skb_dst(skb)->dev->mtu), IP_MAX_MTU);
- return mtu - lwtunnel_headroom(skb_dst(skb)->lwtstate, mtu);
+ mtu = min(READ_ONCE(dst_dev(dst)->mtu), IP_MAX_MTU);
+ return mtu - lwtunnel_headroom(dst->lwtstate, mtu);
}
struct dst_metrics *ip_fib_metrics_init(struct nlattr *fc_mx, int fc_mx_len,