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1 /* |
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2 * include/linux/nfs_idmap.h |
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3 * |
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4 * UID and GID to name mapping for clients. |
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5 * |
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6 * Copyright (c) 2002 The Regents of the University of Michigan. |
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7 * All rights reserved. |
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8 * |
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9 * Marius Aamodt Eriksen <marius@umich.edu> |
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10 * |
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11 * Redistribution and use in source and binary forms, with or without |
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12 * modification, are permitted provided that the following conditions |
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13 * are met: |
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14 * |
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15 * 1. Redistributions of source code must retain the above copyright |
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16 * notice, this list of conditions and the following disclaimer. |
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17 * 2. Redistributions in binary form must reproduce the above copyright |
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18 * notice, this list of conditions and the following disclaimer in the |
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19 * documentation and/or other materials provided with the distribution. |
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20 * 3. Neither the name of the University nor the names of its |
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21 * contributors may be used to endorse or promote products derived |
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22 * from this software without specific prior written permission. |
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23 * |
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24 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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25 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
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26 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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27 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
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31 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
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32 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
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33 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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34 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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35 */ |
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36 |
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37 #ifndef NFS_IDMAP_H |
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38 #define NFS_IDMAP_H |
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39 |
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40 /* XXX from bits/utmp.h */ |
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41 #define IDMAP_NAMESZ 128 |
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42 |
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43 #define IDMAP_TYPE_USER 0 |
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44 #define IDMAP_TYPE_GROUP 1 |
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45 |
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46 #define IDMAP_CONV_IDTONAME 0 |
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47 #define IDMAP_CONV_NAMETOID 1 |
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48 |
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49 #define IDMAP_STATUS_INVALIDMSG 0x01 |
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50 #define IDMAP_STATUS_AGAIN 0x02 |
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51 #define IDMAP_STATUS_LOOKUPFAIL 0x04 |
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52 #define IDMAP_STATUS_SUCCESS 0x08 |
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53 |
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54 struct idmap_msg { |
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55 __u8 im_type; |
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56 __u8 im_conv; |
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57 char im_name[IDMAP_NAMESZ]; |
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58 __u32 im_id; |
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59 __u8 im_status; |
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60 }; |
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61 |
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62 #ifdef __KERNEL__ |
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63 |
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64 /* Forward declaration to make this header independent of others */ |
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65 struct nfs_client; |
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66 |
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67 int nfs_idmap_new(struct nfs_client *); |
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68 void nfs_idmap_delete(struct nfs_client *); |
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69 |
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70 int nfs_map_name_to_uid(struct nfs_client *, const char *, size_t, __u32 *); |
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71 int nfs_map_group_to_gid(struct nfs_client *, const char *, size_t, __u32 *); |
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72 int nfs_map_uid_to_name(struct nfs_client *, __u32, char *); |
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73 int nfs_map_gid_to_group(struct nfs_client *, __u32, char *); |
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74 |
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75 extern unsigned int nfs_idmap_cache_timeout; |
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76 #endif /* __KERNEL__ */ |
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77 |
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78 #endif /* NFS_IDMAP_H */ |