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