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 37 #ifndef NFS_IDMAP_H 38 #define NFS_IDMAP_H 39 40 #include <linux/types.h> 41 42 /* XXX from bits/utmp.h */ 43 #define IDMAP_NAMESZ 128 44 45 #define IDMAP_TYPE_USER 0 46 #define IDMAP_TYPE_GROUP 1 47 48 #define IDMAP_CONV_IDTONAME 0 49 #define IDMAP_CONV_NAMETOID 1 50 51 #define IDMAP_STATUS_INVALIDMSG 0x01 52 #define IDMAP_STATUS_AGAIN 0x02 53 #define IDMAP_STATUS_LOOKUPFAIL 0x04 54 #define IDMAP_STATUS_SUCCESS 0x08 55 56 struct idmap_msg { 57 __u8 im_type; 58 __u8 im_conv; 59 char im_name[IDMAP_NAMESZ]; 60 __u32 im_id; 61 __u8 im_status; 62 }; 63 64 #ifdef __KERNEL__ 65 66 /* Forward declaration to make this header independent of others */ 67 struct nfs_client; 68 69 int nfs_idmap_new(struct nfs_client *); 70 void nfs_idmap_delete(struct nfs_client *); 71 72 int nfs_map_name_to_uid(struct nfs_client *, const char *, size_t, __u32 *); 73 int nfs_map_group_to_gid(struct nfs_client *, const char *, size_t, __u32 *); 74 int nfs_map_uid_to_name(struct nfs_client *, __u32, char *); 75 int nfs_map_gid_to_group(struct nfs_client *, __u32, char *); 76 77 extern unsigned int nfs_idmap_cache_timeout; 78 #endif /* __KERNEL__ */ 79 80 #endif /* NFS_IDMAP_H */ 81