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-rw-r--r--include/linux/ipv6.h4
-rw-r--r--include/net/inet_sock.h3
-rw-r--r--include/net/ip.h9
-rw-r--r--include/net/request_sock.h12
4 files changed, 19 insertions, 9 deletions
diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index f1f32af6d9b9..0ef2a97ccdb5 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -264,9 +264,9 @@ struct tcp6_timewait_sock {
};
#if IS_ENABLED(CONFIG_IPV6)
-static inline struct ipv6_pinfo * inet6_sk(const struct sock *__sk)
+static inline struct ipv6_pinfo *inet6_sk(const struct sock *__sk)
{
- return inet_sk(__sk)->pinet6;
+ return sk_fullsock(__sk) ? inet_sk(__sk)->pinet6 : NULL;
}
static inline struct raw6_sock *raw6_sk(const struct sock *sk)
diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h
index 47eb67b08abd..f5bf7310e334 100644
--- a/include/net/inet_sock.h
+++ b/include/net/inet_sock.h
@@ -245,7 +245,8 @@ static inline unsigned int __inet_ehashfn(const __be32 laddr,
}
struct request_sock *inet_reqsk_alloc(const struct request_sock_ops *ops,
- struct sock *sk_listener);
+ struct sock *sk_listener,
+ bool attach_listener);
static inline __u8 inet_sk_flowi_flags(const struct sock *sk)
{
diff --git a/include/net/ip.h b/include/net/ip.h
index 91a6b2c88341..aa7811993276 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -323,12 +323,15 @@ static inline unsigned int ip_dst_mtu_maybe_forward(const struct dst_entry *dst,
static inline unsigned int ip_skb_dst_mtu(const struct sk_buff *skb)
{
- if (!skb->sk || ip_sk_use_pmtu(skb->sk)) {
+ struct sock *sk = skb->sk;
+
+ 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);
- } else {
- return min(skb_dst(skb)->dev->mtu, IP_MAX_MTU);
}
+
+ return min(skb_dst(skb)->dev->mtu, IP_MAX_MTU);
}
u32 ip_idents_reserve(u32 hash, int segs);
diff --git a/include/net/request_sock.h b/include/net/request_sock.h
index dd423d840852..95ab5d7aab96 100644
--- a/include/net/request_sock.h
+++ b/include/net/request_sock.h
@@ -80,7 +80,8 @@ static inline struct sock *req_to_sk(struct request_sock *req)
}
static inline struct request_sock *
-reqsk_alloc(const struct request_sock_ops *ops, struct sock *sk_listener)
+reqsk_alloc(const struct request_sock_ops *ops, struct sock *sk_listener,
+ bool attach_listener)
{
struct request_sock *req;
@@ -88,10 +89,15 @@ reqsk_alloc(const struct request_sock_ops *ops, struct sock *sk_listener)
if (req) {
req->rsk_ops = ops;
- sock_hold(sk_listener);
- req->rsk_listener = sk_listener;
+ if (attach_listener) {
+ sock_hold(sk_listener);
+ req->rsk_listener = sk_listener;
+ } else {
+ req->rsk_listener = NULL;
+ }
req_to_sk(req)->sk_prot = sk_listener->sk_prot;
sk_node_init(&req_to_sk(req)->sk_node);
+ sk_tx_queue_clear(req_to_sk(req));
req->saved_syn = NULL;
/* Following is temporary. It is coupled with debugging
* helpers in reqsk_put() & reqsk_free()