diff options
Diffstat (limited to 'include/net/inet_sock.h')
| -rw-r--r-- | include/net/inet_sock.h | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h index 47eb67b08..625bdf95d 100644 --- a/include/net/inet_sock.h +++ b/include/net/inet_sock.h @@ -210,6 +210,37 @@ struct inet_sock { #define IP_CMSG_ORIGDSTADDR BIT(6) #define IP_CMSG_CHECKSUM BIT(7) +/** + * sk_to_full_sk - Access to a full socket + * @sk: pointer to a socket + * + * SYNACK messages might be attached to request sockets. + * Some places want to reach the listener in this case. + */ +static inline struct sock *sk_to_full_sk(struct sock *sk) +{ +#ifdef CONFIG_INET + if (sk && sk->sk_state == TCP_NEW_SYN_RECV) + sk = inet_reqsk(sk)->rsk_listener; +#endif + return sk; +} + +/* sk_to_full_sk() variant with a const argument */ +static inline const struct sock *sk_const_to_full_sk(const struct sock *sk) +{ +#ifdef CONFIG_INET + if (sk && sk->sk_state == TCP_NEW_SYN_RECV) + sk = ((const struct request_sock *)sk)->rsk_listener; +#endif + return sk; +} + +static inline struct sock *skb_to_full_sk(const struct sk_buff *skb) +{ + return sk_to_full_sk(skb->sk); +} + static inline struct inet_sock *inet_sk(const struct sock *sk) { return (struct inet_sock *)sk; @@ -245,7 +276,8 @@ 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) { |