| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * Resolve DNS hostnames into valid ip addresses |
| */ |
| #ifndef __LINUX_FS_NFS_DNS_RESOLVE_H |
| #define __LINUX_FS_NFS_DNS_RESOLVE_H |
| |
| #define NFS_DNS_HOSTNAME_MAXLEN (128) |
| |
| |
| #ifdef CONFIG_NFS_USE_KERNEL_DNS |
| static inline int nfs_dns_resolver_init(void) |
| { |
| return 0; |
| } |
| |
| static inline void nfs_dns_resolver_destroy(void) |
| {} |
| |
| static inline int nfs_dns_resolver_cache_init(struct net *net) |
| { |
| return 0; |
| } |
| |
| static inline void nfs_dns_resolver_cache_destroy(struct net *net) |
| {} |
| #else |
| extern int nfs_dns_resolver_init(void); |
| extern void nfs_dns_resolver_destroy(void); |
| extern int nfs_dns_resolver_cache_init(struct net *net); |
| extern void nfs_dns_resolver_cache_destroy(struct net *net); |
| #endif |
| |
| extern ssize_t nfs_dns_resolve_name(struct net *net, char *name, |
| size_t namelen, struct sockaddr_storage *sa, size_t salen); |
| |
| #endif |