1 /**************************************************************************** 2 * include/sys/statfs.h 3 * 4 * Copyright (C) 2007-2009, 2011-2013 Gregory Nutt. All rights reserved. 5 * Author: Gregory Nutt <gnutt@nuttx.org> 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * 3. Neither the name NuttX nor the names of its contributors may be 18 * used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 25 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 28 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 31 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGE. 33 * 34 ****************************************************************************/ 35 36 #ifndef __INCLUDE_SYS_STATFS_H 37 #define __INCLUDE_SYS_STATFS_H 38 39 /**************************************************************************** 40 * Included Files 41 ****************************************************************************/ 42 43 #include <nuttx/config.h> 44 45 #include <sys/types.h> 46 #include <stdint.h> 47 48 /**************************************************************************** 49 * Pre-processor Definitions 50 ****************************************************************************/ 51 52 /* struct statfs file system types. */ 53 54 #define ADFS_SUPER_MAGIC 0xadf5 55 #define AFFS_SUPER_MAGIC 0xadff 56 #define BEFS_SUPER_MAGIC 0x42465331 57 #define BFS_MAGIC 0x1badface 58 #define CIFS_MAGIC_NUMBER 0xff534d42 59 #define CODA_SUPER_MAGIC 0x73757245 60 #define COH_SUPER_MAGIC 0x012ff7b7 61 #define CRAMFS_MAGIC 0x28cd3d45 62 #define DEVFS_SUPER_MAGIC 0x1373 63 #define EFS_SUPER_MAGIC 0x00414a53 64 #define EXT_SUPER_MAGIC 0x137d 65 #define EXT2_OLD_SUPER_MAGIC 0xef51 66 #define EXT2_SUPER_MAGIC 0xef53 67 #define EXT3_SUPER_MAGIC 0xef53 68 #define HFS_SUPER_MAGIC 0x4244 69 #define HPFS_SUPER_MAGIC 0xf995e849 70 #define HUGETLBFS_MAGIC 0x958458f6 71 #define ISOFS_SUPER_MAGIC 0x9660 72 #define JFFS2_SUPER_MAGIC 0x72b6 73 #define JFS_SUPER_MAGIC 0x3153464a 74 #define MINIX_SUPER_MAGIC 0x137f /* orig. minix */ 75 #define MINIX_SUPER_MAGIC2 0x138f /* 30 char minix */ 76 #define MINIX2_SUPER_MAGIC 0x2468 /* minix V2 */ 77 #define MINIX2_SUPER_MAGIC2 0x2478 /* minix V2, 30 char names */ 78 #define MSDOS_SUPER_MAGIC 0x4d44 79 #define NCP_SUPER_MAGIC 0x564c 80 #define NFS_SUPER_MAGIC 0x6969 81 #define NTFS_SB_MAGIC 0x5346544e 82 #define OPENPROM_SUPER_MAGIC 0x9fa1 83 #define PROC_SUPER_MAGIC 0x9fa0 84 #define QNX4_SUPER_MAGIC 0x002f 85 #define REISERFS_SUPER_MAGIC 0x52654973 86 #define ROMFS_MAGIC 0x7275 87 #define SMB_SUPER_MAGIC 0x517B 88 #define SYSV2_SUPER_MAGIC 0x012ff7b6 89 #define SYSV4_SUPER_MAGIC 0x012FF7B5 90 #define TMPFS_MAGIC 0x01021994 91 #define UDF_SUPER_MAGIC 0x15013346 92 #define UFS_MAGIC 0x00011954 93 #define USBDEVICE_SUPER_MAGIC 0x9fa2 94 #define VXFS_SUPER_MAGIC 0xa501fcf5 95 #define XENIX_SUPER_MAGIC 0x012ff7b4 96 #define XFS_SUPER_MAGIC 0x58465342 97 #define _XIAFS_SUPER_MAGIC 0x012fd16d 98 #define SPIFFS_SUPER_MAGIC 0x20090315 99 #define LITTLEFS_SUPER_MAGIC 0x0a732923 100 #define ZPFS_MAGIC 0xa000e93 101 102 /* NuttX specific file-systems */ 103 104 #define BINFS_MAGIC 0x4242 105 #define PROCFS_MAGIC 0x434f5250 106 #define NXFFS_MAGIC 0x4747 107 #define SMARTFS_MAGIC 0x54524D53 108 #define UNIONFS_MAGIC 0x53464e55 109 #define HOSTFS_MAGIC 0x54534f48 110 #define USERFS_MAGIC 0x52455355 111 #define CROMFS_MAGIC 0x4d4f5243 112 113 /**************************************************************************** 114 * Type Definitions 115 ****************************************************************************/ 116 117 struct statfs 118 { 119 uint32_t f_type; /* Type of filesystem (see definitions above) */ 120 size_t f_namelen; /* Maximum length of filenames */ 121 size_t f_bsize; /* Optimal block size for transfers */ 122 off_t f_blocks; /* Total data blocks in the file system of this size */ 123 off_t f_bfree; /* Free blocks in the file system */ 124 off_t f_bavail; /* Free blocks avail to non-superuser */ 125 off_t f_files; /* Total file nodes in the file system */ 126 off_t f_ffree; /* Free file nodes in the file system */ 127 }; 128 129 /**************************************************************************** 130 * Public Function Prototypes 131 ****************************************************************************/ 132 133 #undef EXTERN 134 #if defined(__cplusplus) 135 #define EXTERN extern "C" 136 extern "C" 137 { 138 #else 139 #define EXTERN extern 140 #endif 141 142 /* Inspired by Linux statfs() which was, in turn, inspired by 143 * the BSD statfs(). None of these implementations agree in the 144 * form of the struct statfs. 145 */ 146 147 int statfs(FAR const char *path, FAR struct statfs *buf); 148 int fstatfs(int fd, FAR struct statfs *buf); 149 150 #undef EXTERN 151 #if defined(__cplusplus) 152 } 153 #endif 154 155 #endif /* __INCLUDE_SYS_STATFS_H */ 156