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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002 * Common NFSv4 ACL handling definitions.
3 *
4 * Copyright (c) 2002 The Regents of the University of Michigan.
5 * All rights reserved.
6 *
7 * Marius Aamodt Eriksen <marius@umich.edu>
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its
19 * contributors may be used to endorse or promote products derived
20 * from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
23 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
24 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
25 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
29 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
30 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
31 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
32 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 */
34
35#ifndef LINUX_NFS4_ACL_H
36#define LINUX_NFS4_ACL_H
37
Christoph Hellwig4ac72492013-12-20 05:16:55 -080038struct nfs4_acl;
39struct svc_fh;
40struct svc_rqst;
Linus Torvalds1da177e2005-04-16 15:20:36 -070041
J. Bruce Fieldsd1399772013-11-11 11:09:32 -050042/*
43 * Maximum ACL we'll accept from a client; chosen (somewhat
44 * arbitrarily) so that kmalloc'ing the ACL shouldn't require a
45 * high-order allocation. This allows 204 ACEs on x86_64:
46 */
47#define NFS4_ACL_MAX ((PAGE_SIZE - sizeof(struct nfs4_acl)) \
48 / sizeof(struct nfs4_ace))
J. Bruce Fields28e05dd2007-02-16 01:28:30 -080049
50struct nfs4_acl *nfs4_acl_new(int);
Linus Torvalds1da177e2005-04-16 15:20:36 -070051int nfs4_acl_get_whotype(char *, u32);
J. Bruce Fields35541162014-01-08 09:49:01 -050052__be32 nfs4_acl_write_who(int who, __be32 **p, int *len);
Linus Torvalds1da177e2005-04-16 15:20:36 -070053
Christoph Hellwig4ac72492013-12-20 05:16:55 -080054int nfsd4_get_nfs4_acl(struct svc_rqst *rqstp, struct dentry *dentry,
55 struct nfs4_acl **acl);
56__be32 nfsd4_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp,
57 struct nfs4_acl *acl);
Linus Torvalds1da177e2005-04-16 15:20:36 -070058
59#endif /* LINUX_NFS4_ACL_H */