fs/nfs/dns_resolve.h

   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