| | 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 |
| | 12 | static inline int nfs_dns_resolver_init(void) |
| | 13 | { |
| | 14 | return 0; |
| | 15 | } |
| | 16 | |
| | 17 | static inline void nfs_dns_resolver_destroy(void) |
| | 18 | {} |
| | 19 | |
| | 20 | static inline int nfs_dns_resolver_cache_init(struct net *net) |
| | 21 | { |
| | 22 | return 0; |
| | 23 | } |
| | 24 | |
| | 25 | static inline void nfs_dns_resolver_cache_destroy(struct net *net) |
| | 26 | {} |
| | 27 | #else |
| | 28 | extern int nfs_dns_resolver_init(void); |
| | 29 | extern void nfs_dns_resolver_destroy(void); |
| | 30 | extern int nfs_dns_resolver_cache_init(struct net *net); |
| | 31 | extern void nfs_dns_resolver_cache_destroy(struct net *net); |
| | 32 | #endif |
| | 33 | |
| | 34 | extern ssize_t nfs_dns_resolve_name(struct net *net, char *name, |
| | 35 | size_t namelen, struct sockaddr *sa, size_t salen); |
| | 36 | |
| | 37 | #endif |
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