| Andreas Gruenbacher | a257cdd | 2005-06-22 17:16:26 +0000 | [diff] [blame] | 1 | /* |
| 2 | * File: linux/nfsacl.h |
| 3 | * |
| 4 | * (C) 2003 Andreas Gruenbacher <agruen@suse.de> |
| 5 | */ |
| 6 | #ifndef __LINUX_NFSACL_H |
| 7 | #define __LINUX_NFSACL_H |
| 8 | |
| Andreas Gruenbacher | a257cdd | 2005-06-22 17:16:26 +0000 | [diff] [blame] | 9 | |
| 10 | #include <linux/posix_acl.h> |
| Boaz Harrosh | d703158 | 2009-12-03 20:28:47 +0200 | [diff] [blame] | 11 | #include <linux/sunrpc/xdr.h> |
| David Howells | 607ca46 | 2012-10-13 10:46:48 +0100 | [diff] [blame] | 12 | #include <uapi/linux/nfsacl.h> |
| Andreas Gruenbacher | a257cdd | 2005-06-22 17:16:26 +0000 | [diff] [blame] | 13 | |
| 14 | /* Maximum number of ACL entries over NFS */ |
| 15 | #define NFS_ACL_MAX_ENTRIES 1024 |
| 16 | |
| 17 | #define NFSACL_MAXWORDS (2*(2+3*NFS_ACL_MAX_ENTRIES)) |
| 18 | #define NFSACL_MAXPAGES ((2*(8+12*NFS_ACL_MAX_ENTRIES) + PAGE_SIZE-1) \ |
| 19 | >> PAGE_SHIFT) |
| 20 | |
| Trond Myklebust | ae46141 | 2009-03-10 20:33:18 -0400 | [diff] [blame] | 21 | #define NFS_ACL_MAX_ENTRIES_INLINE (5) |
| 22 | #define NFS_ACL_INLINE_BUFSIZE ((2*(2+3*NFS_ACL_MAX_ENTRIES_INLINE)) << 2) |
| 23 | |
| Andreas Gruenbacher | a257cdd | 2005-06-22 17:16:26 +0000 | [diff] [blame] | 24 | static inline unsigned int |
| 25 | nfsacl_size(struct posix_acl *acl_access, struct posix_acl *acl_default) |
| 26 | { |
| 27 | unsigned int w = 16; |
| 28 | w += max(acl_access ? (int)acl_access->a_count : 3, 4) * 12; |
| 29 | if (acl_default) |
| 30 | w += max((int)acl_default->a_count, 4) * 12; |
| 31 | return w; |
| 32 | } |
| 33 | |
| Chuck Lever | 731f3f4 | 2011-01-21 03:05:28 +0000 | [diff] [blame] | 34 | extern int |
| Andreas Gruenbacher | a257cdd | 2005-06-22 17:16:26 +0000 | [diff] [blame] | 35 | nfsacl_encode(struct xdr_buf *buf, unsigned int base, struct inode *inode, |
| 36 | struct posix_acl *acl, int encode_entries, int typeflag); |
| Chuck Lever | 731f3f4 | 2011-01-21 03:05:28 +0000 | [diff] [blame] | 37 | extern int |
| Andreas Gruenbacher | a257cdd | 2005-06-22 17:16:26 +0000 | [diff] [blame] | 38 | nfsacl_decode(struct xdr_buf *buf, unsigned int base, unsigned int *aclcnt, |
| 39 | struct posix_acl **pacl); |
| 40 | |
| Andreas Gruenbacher | a257cdd | 2005-06-22 17:16:26 +0000 | [diff] [blame] | 41 | #endif /* __LINUX_NFSACL_H */ |