| 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 | |
| 9 | #define NFS_ACL_PROGRAM 100227 |
| 10 | |
| 11 | #define ACLPROC2_GETACL 1 |
| 12 | #define ACLPROC2_SETACL 2 |
| 13 | #define ACLPROC2_GETATTR 3 |
| 14 | #define ACLPROC2_ACCESS 4 |
| 15 | |
| 16 | #define ACLPROC3_GETACL 1 |
| 17 | #define ACLPROC3_SETACL 2 |
| 18 | |
| 19 | |
| 20 | /* Flags for the getacl/setacl mode */ |
| 21 | #define NFS_ACL 0x0001 |
| 22 | #define NFS_ACLCNT 0x0002 |
| 23 | #define NFS_DFACL 0x0004 |
| 24 | #define NFS_DFACLCNT 0x0008 |
| 25 | |
| 26 | /* Flag for Default ACL entries */ |
| 27 | #define NFS_ACL_DEFAULT 0x1000 |
| 28 | |
| 29 | #ifdef __KERNEL__ |
| 30 | |
| 31 | #include <linux/posix_acl.h> |
| 32 | |
| 33 | /* Maximum number of ACL entries over NFS */ |
| 34 | #define NFS_ACL_MAX_ENTRIES 1024 |
| 35 | |
| 36 | #define NFSACL_MAXWORDS (2*(2+3*NFS_ACL_MAX_ENTRIES)) |
| 37 | #define NFSACL_MAXPAGES ((2*(8+12*NFS_ACL_MAX_ENTRIES) + PAGE_SIZE-1) \ |
| 38 | >> PAGE_SHIFT) |
| 39 | |
| 40 | static inline unsigned int |
| 41 | nfsacl_size(struct posix_acl *acl_access, struct posix_acl *acl_default) |
| 42 | { |
| 43 | unsigned int w = 16; |
| 44 | w += max(acl_access ? (int)acl_access->a_count : 3, 4) * 12; |
| 45 | if (acl_default) |
| 46 | w += max((int)acl_default->a_count, 4) * 12; |
| 47 | return w; |
| 48 | } |
| 49 | |
| 50 | extern unsigned int |
| 51 | nfsacl_encode(struct xdr_buf *buf, unsigned int base, struct inode *inode, |
| 52 | struct posix_acl *acl, int encode_entries, int typeflag); |
| 53 | extern unsigned int |
| 54 | nfsacl_decode(struct xdr_buf *buf, unsigned int base, unsigned int *aclcnt, |
| 55 | struct posix_acl **pacl); |
| 56 | |
| 57 | #endif /* __KERNEL__ */ |
| 58 | #endif /* __LINUX_NFSACL_H */ |