1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Resolve DNS hostnames into valid ip addresses
4 */
5#ifndef __LINUX_FS_NFS_DNS_RESOLVE_H
6#define __LINUX_FS_NFS_DNS_RESOLVE_H
7
8#define NFS_DNS_HOSTNAME_MAXLEN (128)
9
10
11#ifdef CONFIG_NFS_USE_KERNEL_DNS
12static inline int nfs_dns_resolver_init(void)
13{
14 return 0;
15}
16
17static inline void nfs_dns_resolver_destroy(void)
18{}
19
20static inline int nfs_dns_resolver_cache_init(struct net *net)
21{
22 return 0;
23}
24
25static inline void nfs_dns_resolver_cache_destroy(struct net *net)
26{}
27#else
28extern int nfs_dns_resolver_init(void);
29extern void nfs_dns_resolver_destroy(void);
30extern int nfs_dns_resolver_cache_init(struct net *net);
31extern void nfs_dns_resolver_cache_destroy(struct net *net);
32#endif
33
34extern ssize_t nfs_dns_resolve_name(struct net *net, char *name,
35 size_t namelen, struct sockaddr_storage *sa, size_t salen);
36
37#endif
38