| /* SPDX-License-Identifier: GPL-2.0-only */ | 
 | /****************************************************************************** | 
 |  | 
 | (c) 2008 NetApp.  All Rights Reserved. | 
 |  | 
 |  | 
 | ******************************************************************************/ | 
 |  | 
 | /* | 
 |  * Functions and macros used internally by RPC | 
 |  */ | 
 |  | 
 | #ifndef _NET_SUNRPC_SUNRPC_H | 
 | #define _NET_SUNRPC_SUNRPC_H | 
 |  | 
 | #include <linux/net.h> | 
 |  | 
 | /* | 
 |  * Header for dynamically allocated rpc buffers. | 
 |  */ | 
 | struct rpc_buffer { | 
 | 	size_t	len; | 
 | 	char	data[]; | 
 | }; | 
 |  | 
 | static inline int sock_is_loopback(struct sock *sk) | 
 | { | 
 | 	struct dst_entry *dst; | 
 | 	int loopback = 0; | 
 | 	rcu_read_lock(); | 
 | 	dst = rcu_dereference(sk->sk_dst_cache); | 
 | 	if (dst && dst->dev && | 
 | 	    (dst->dev->features & NETIF_F_LOOPBACK)) | 
 | 		loopback = 1; | 
 | 	rcu_read_unlock(); | 
 | 	return loopback; | 
 | } | 
 |  | 
 | struct svc_serv; | 
 | struct svc_rqst; | 
 | int rpc_clients_notifier_register(void); | 
 | void rpc_clients_notifier_unregister(void); | 
 | void auth_domain_cleanup(void); | 
 | void svc_sock_update_bufs(struct svc_serv *serv); | 
 | enum svc_auth_status svc_authenticate(struct svc_rqst *rqstp); | 
 | #endif /* _NET_SUNRPC_SUNRPC_H */ |