1 /* 2 * 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 38 struct nfs4_acl; 39 struct svc_fh; 40 struct svc_rqst; 41 42 /* 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)) 49 50 int nfs4_acl_bytes(int entries); 51 int nfs4_acl_get_whotype(char *, u32); 52 __be32 nfs4_acl_write_who(struct xdr_stream *xdr, int who); 53 54 int 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); 58 59 #endif /* LINUX_NFS4_ACL_H */ 60