nfs4idmap.h 2.7 KB

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  1. /*
  2. * fs/nfs/nfs4idmap.h
  3. *
  4. * UID and GID to name mapping for clients.
  5. *
  6. * Copyright (c) 2002 The Regents of the University of Michigan.
  7. * All rights reserved.
  8. *
  9. * Marius Aamodt Eriksen <marius@umich.edu>
  10. *
  11. * Redistribution and use in source and binary forms, with or without
  12. * modification, are permitted provided that the following conditions
  13. * are met:
  14. *
  15. * 1. Redistributions of source code must retain the above copyright
  16. * notice, this list of conditions and the following disclaimer.
  17. * 2. Redistributions in binary form must reproduce the above copyright
  18. * notice, this list of conditions and the following disclaimer in the
  19. * documentation and/or other materials provided with the distribution.
  20. * 3. Neither the name of the University nor the names of its
  21. * contributors may be used to endorse or promote products derived
  22. * from this software without specific prior written permission.
  23. *
  24. * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
  25. * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  26. * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  27. * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  28. * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  29. * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  30. * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  31. * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  32. * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  33. * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  34. * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  35. */
  36. #ifndef NFS_IDMAP_H
  37. #define NFS_IDMAP_H
  38. #include <linux/uidgid.h>
  39. #include <uapi/linux/nfs_idmap.h>
  40. /* Forward declaration to make this header independent of others */
  41. struct nfs_client;
  42. struct nfs_server;
  43. struct nfs_fattr;
  44. struct nfs4_string;
  45. int nfs_idmap_init(void);
  46. void nfs_idmap_quit(void);
  47. int nfs_idmap_new(struct nfs_client *);
  48. void nfs_idmap_delete(struct nfs_client *);
  49. void nfs_fattr_init_names(struct nfs_fattr *fattr,
  50. struct nfs4_string *owner_name,
  51. struct nfs4_string *group_name);
  52. void nfs_fattr_free_names(struct nfs_fattr *);
  53. void nfs_fattr_map_and_free_names(struct nfs_server *, struct nfs_fattr *);
  54. int nfs_map_name_to_uid(const struct nfs_server *, const char *, size_t, kuid_t *);
  55. int nfs_map_group_to_gid(const struct nfs_server *, const char *, size_t, kgid_t *);
  56. int nfs_map_uid_to_name(const struct nfs_server *, kuid_t, char *, size_t);
  57. int nfs_map_gid_to_group(const struct nfs_server *, kgid_t, char *, size_t);
  58. int nfs_map_string_to_numeric(const char *name, size_t namelen, __u32 *res);
  59. extern unsigned int nfs_idmap_cache_timeout;
  60. #endif /* NFS_IDMAP_H */