nfs_idmap.h 2.7 KB

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  1. /*
  2. * include/linux/nfs_idmap.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. /* XXX from bits/utmp.h */
  39. #define IDMAP_NAMESZ 128
  40. #define IDMAP_TYPE_USER 0
  41. #define IDMAP_TYPE_GROUP 1
  42. #define IDMAP_CONV_IDTONAME 0
  43. #define IDMAP_CONV_NAMETOID 1
  44. #define IDMAP_STATUS_INVALIDMSG 0x01
  45. #define IDMAP_STATUS_AGAIN 0x02
  46. #define IDMAP_STATUS_LOOKUPFAIL 0x04
  47. #define IDMAP_STATUS_SUCCESS 0x08
  48. struct idmap_msg {
  49. __u8 im_type;
  50. __u8 im_conv;
  51. char im_name[IDMAP_NAMESZ];
  52. __u32 im_id;
  53. __u8 im_status;
  54. };
  55. #ifdef __KERNEL__
  56. /* Forward declaration to make this header independent of others */
  57. struct nfs_client;
  58. int nfs_idmap_new(struct nfs_client *);
  59. void nfs_idmap_delete(struct nfs_client *);
  60. int nfs_map_name_to_uid(struct nfs_client *, const char *, size_t, __u32 *);
  61. int nfs_map_group_to_gid(struct nfs_client *, const char *, size_t, __u32 *);
  62. int nfs_map_uid_to_name(struct nfs_client *, __u32, char *);
  63. int nfs_map_gid_to_group(struct nfs_client *, __u32, char *);
  64. extern unsigned int nfs_idmap_cache_timeout;
  65. #endif /* __KERNEL__ */
  66. #endif /* NFS_IDMAP_H */