nfsacl.h (1435B)
1/* SPDX-License-Identifier: GPL-2.0 */ 2/* 3 * File: linux/nfsacl.h 4 * 5 * (C) 2003 Andreas Gruenbacher <agruen@suse.de> 6 */ 7#ifndef __LINUX_NFSACL_H 8#define __LINUX_NFSACL_H 9 10 11#include <linux/posix_acl.h> 12#include <linux/sunrpc/xdr.h> 13#include <uapi/linux/nfsacl.h> 14 15/* Maximum number of ACL entries over NFS */ 16#define NFS_ACL_MAX_ENTRIES 1024 17 18#define NFSACL_MAXWORDS (2*(2+3*NFS_ACL_MAX_ENTRIES)) 19#define NFSACL_MAXPAGES ((2*(8+12*NFS_ACL_MAX_ENTRIES) + PAGE_SIZE-1) \ 20 >> PAGE_SHIFT) 21 22#define NFS_ACL_MAX_ENTRIES_INLINE (5) 23#define NFS_ACL_INLINE_BUFSIZE ((2*(2+3*NFS_ACL_MAX_ENTRIES_INLINE)) << 2) 24 25static inline unsigned int 26nfsacl_size(struct posix_acl *acl_access, struct posix_acl *acl_default) 27{ 28 unsigned int w = 16; 29 w += max(acl_access ? (int)acl_access->a_count : 3, 4) * 12; 30 if (acl_default) 31 w += max((int)acl_default->a_count, 4) * 12; 32 return w; 33} 34 35extern int 36nfsacl_encode(struct xdr_buf *buf, unsigned int base, struct inode *inode, 37 struct posix_acl *acl, int encode_entries, int typeflag); 38extern int 39nfsacl_decode(struct xdr_buf *buf, unsigned int base, unsigned int *aclcnt, 40 struct posix_acl **pacl); 41extern bool 42nfs_stream_decode_acl(struct xdr_stream *xdr, unsigned int *aclcnt, 43 struct posix_acl **pacl); 44extern bool 45nfs_stream_encode_acl(struct xdr_stream *xdr, struct inode *inode, 46 struct posix_acl *acl, int encode_entries, int typeflag); 47 48#endif /* __LINUX_NFSACL_H */