blob: da794abba17e2ec60a5519934a61ecf47cf4162b
| 1 | /* |
| 2 | * param.h - Parameter values for ntfs-3g |
| 3 | * |
| 4 | * Copyright (c) 2009-2010 Jean-Pierre Andre |
| 5 | * |
| 6 | * This program/include file is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU General Public License as published |
| 8 | * by the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program/include file is distributed in the hope that it will be |
| 12 | * useful, but WITHOUT ANY WARRANTY; without even the implied warranty |
| 13 | * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program (in the main directory of the NTFS-3G |
| 18 | * distribution in the file COPYING); if not, write to the Free Software |
| 19 | * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 20 | */ |
| 21 | |
| 22 | #ifndef _NTFS_PARAM_H |
| 23 | #define _NTFS_PARAM_H |
| 24 | |
| 25 | #define CACHE_INODE_SIZE 32 /* inode cache, zero or >= 3 and not too big */ |
| 26 | #define CACHE_NIDATA_SIZE 64 /* idata cache, zero or >= 3 and not too big */ |
| 27 | #define CACHE_LOOKUP_SIZE 64 /* lookup cache, zero or >= 3 and not too big */ |
| 28 | #define CACHE_SECURID_SIZE 16 /* securid cache, zero or >= 3 and not too big */ |
| 29 | #define CACHE_LEGACY_SIZE 8 /* legacy cache size, zero or >= 3 and not too big */ |
| 30 | |
| 31 | #define FORCE_FORMAT_v1x 0 /* Insert security data as in NTFS v1.x */ |
| 32 | #define OWNERFROMACL 1 /* Get the owner from ACL (not Windows owner) */ |
| 33 | |
| 34 | /* default security sub-authorities */ |
| 35 | enum { |
| 36 | DEFSECAUTH1 = -1153374643, /* 3141592653 */ |
| 37 | DEFSECAUTH2 = 589793238, |
| 38 | DEFSECAUTH3 = 462843383, |
| 39 | DEFSECBASE = 10000 |
| 40 | }; |
| 41 | |
| 42 | /* |
| 43 | * Parameters for compression |
| 44 | */ |
| 45 | |
| 46 | /* default option for compression */ |
| 47 | #define DEFAULT_COMPRESSION 1 |
| 48 | /* (log2 of) number of clusters in a compression block for new files */ |
| 49 | #define STANDARD_COMPRESSION_UNIT 4 |
| 50 | /* maximum cluster size for allowing compression for new files */ |
| 51 | #define MAX_COMPRESSION_CLUSTER_SIZE 4096 |
| 52 | |
| 53 | /* |
| 54 | * Parameters for default options |
| 55 | */ |
| 56 | |
| 57 | #define DEFAULT_DMTIME 60 /* default 1mn for delay_mtime */ |
| 58 | |
| 59 | /* |
| 60 | * Use of big write buffers |
| 61 | * |
| 62 | * With small volumes, the cluster allocator may fail to allocate |
| 63 | * enough clusters when the volume is nearly full. At most a run |
| 64 | * can be allocated per bitmap chunk. So, there is a danger when the |
| 65 | * number of chunks (capacity/(32768*clsiz)) is less than the number |
| 66 | * of clusters in the biggest write buffer (131072/clsiz). Hence |
| 67 | * a safe minimal capacity is 4GB |
| 68 | */ |
| 69 | |
| 70 | #define SAFE_CAPACITY_FOR_BIG_WRITES 0x100000000LL |
| 71 | |
| 72 | /* |
| 73 | * Parameters for runlists |
| 74 | */ |
| 75 | |
| 76 | /* only update the final extent of a runlist when appending data */ |
| 77 | #define PARTIAL_RUNLIST_UPDATING 1 |
| 78 | |
| 79 | /* |
| 80 | * Parameters for user and xattr mappings |
| 81 | */ |
| 82 | |
| 83 | #define XATTRMAPPINGFILE ".NTFS-3G/XattrMapping" /* default mapping file */ |
| 84 | |
| 85 | /* |
| 86 | * Parameters for path canonicalization |
| 87 | */ |
| 88 | |
| 89 | #define MAPPERNAMELTH 256 |
| 90 | |
| 91 | /* |
| 92 | * Permission checking modes for high level and low level |
| 93 | * |
| 94 | * The choices for high and low lowel are independent, they have |
| 95 | * no effect on the library |
| 96 | * |
| 97 | * Stick to the recommended values unless you understand the consequences |
| 98 | * on protection and performances. Use of cacheing is good for |
| 99 | * performances, but bad on security with internal fuse or external |
| 100 | * fuse older than 2.8 |
| 101 | * |
| 102 | * Possible values for high level : |
| 103 | * 1 : no cache, kernel control (recommended) |
| 104 | * 4 : no cache, file system control |
| 105 | * 7 : no cache, kernel control for ACLs |
| 106 | * |
| 107 | * Possible values for low level : |
| 108 | * 2 : no cache, kernel control |
| 109 | * 3 : use kernel/fuse cache, kernel control (external fuse >= 2.8) |
| 110 | * 5 : no cache, file system control (recommended) |
| 111 | * 8 : no cache, kernel control for ACLs |
| 112 | * |
| 113 | * Use of options 7 and 8 requires a patch to fuse |
| 114 | * When Posix ACLs are selected in the configure options, a value |
| 115 | * of 6 is added in the mount report. |
| 116 | */ |
| 117 | |
| 118 | #if defined(__sun) && defined(__SVR4) |
| 119 | #define HPERMSCONFIG 4 /* access control by kernel is broken on OpenIndiana */ |
| 120 | #else |
| 121 | #define HPERMSCONFIG 1 |
| 122 | #endif |
| 123 | #if defined(FUSE_INTERNAL) || !defined(FUSE_VERSION) || (FUSE_VERSION < 28) |
| 124 | #define LPERMSCONFIG 5 |
| 125 | #else |
| 126 | #define LPERMSCONFIG 3 |
| 127 | #endif |
| 128 | |
| 129 | #endif /* defined _NTFS_PARAM_H */ |
| 130 |