1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /****************************************************************************** 3 4 (c) 2008 NetApp. All Rights Reserved. 5 6 7 ******************************************************************************/ 8 9 /* 10 * Functions and macros used internally by RPC 11 */ 12 13 #ifndef _NET_SUNRPC_SUNRPC_H 14 #define _NET_SUNRPC_SUNRPC_H 15 16 #include <linux/net.h> 17 18 /* 19 * Header for dynamically allocated rpc buffers. 20 */ 21 struct rpc_buffer { 22 size_t len; 23 char data[]; 24 }; 25 26 static inline int sock_is_loopback(struct sock *sk) 27 { 28 struct dst_entry *dst; 29 int loopback = 0; 30 rcu_read_lock(); 31 dst = rcu_dereference(sk->sk_dst_cache); 32 if (dst && dst->dev && 33 (dst->dev->features & NETIF_F_LOOPBACK)) 34 loopback = 1; 35 rcu_read_unlock(); 36 return loopback; 37 } 38 39 int rpc_clients_notifier_register(void); 40 void rpc_clients_notifier_unregister(void); 41 void auth_domain_cleanup(void); 42 #endif /* _NET_SUNRPC_SUNRPC_H */ 43