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Resync. struct statfs and flag definitions with sys/mount.h.

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This commit is contained in:
Tim J. Robbins 2003-11-16 04:08:16 +00:00
parent 12cbb9dc56
commit 607e2cc177
1 changed files with 57 additions and 22 deletions
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79
lib/libc/sys/statfs.2
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@ -32,7 +32,7 @@
.\" @(#)statfs.2 8.5 (Berkeley) 5/24/95
.\" $FreeBSD$
.\"
.Dd May 24, 1995
.Dd November 16, 2003
.Dt STATFS 2
.Os
.Sh NAME
@ -66,33 +66,39 @@ structure defined as follows:
typedef struct fsid { int32_t val[2]; } fsid_t; /* file system id type */
/*
* file system statistics
* filesystem statistics
*/
#define MFSNAMELEN 16 /* length of fs type name, including null */
#define MNAMELEN 90 /* length of buffer for returned name */
#define MFSNAMELEN 16 /* length of type name including null */
#define MNAMELEN 88 /* size of on/from name bufs */
#define STATFS_VERSION 0x20030518 /* current version number */
struct statfs {
long f_bsize; /* fundamental file system block size */
long f_iosize; /* optimal transfer block size */
long f_blocks; /* total data blocks in file system */
long f_bfree; /* free blocks in fs */
long f_bavail; /* free blocks avail to non-superuser */
long f_files; /* total file nodes in file system */
long f_ffree; /* free file nodes in fs */
fsid_t f_fsid; /* file system id */
uid_t f_owner; /* user that mounted the file system */
int f_type; /* type of file system */
int f_flags; /* copy of mount flags */
long f_syncwrites; /* count of sync writes since mount */
long f_asyncwrites; /* count of async writes since mount */
char f_fstypename[MFSNAMELEN];/* fs type name */
char f_mntonname[MNAMELEN]; /* mount point */
long f_syncreads; /* count of sync reads since mount */
long f_asyncreads; /* count of async reads since mount */
char f_mntfromname[MNAMELEN]; /* mounted file system */
uint32_t f_version; /* structure version number */
uint32_t f_type; /* type of filesystem */
uint64_t f_flags; /* copy of mount exported flags */
uint64_t f_bsize; /* filesystem fragment size */
uint64_t f_iosize; /* optimal transfer block size */
uint64_t f_blocks; /* total data blocks in filesystem */
uint64_t f_bfree; /* free blocks in filesystem */
int64_t f_bavail; /* free blocks avail to non-superuser */
uint64_t f_files; /* total file nodes in filesystem */
int64_t f_ffree; /* free nodes avail to non-superuser */
uint64_t f_syncwrites; /* count of sync writes since mount */
uint64_t f_asyncwrites; /* count of async writes since mount */
uint64_t f_syncreads; /* count of sync reads since mount */
uint64_t f_asyncreads; /* count of async reads since mount */
uint64_t f_spare[10]; /* unused spare */
uint32_t f_namemax; /* maximum filename length */
uid_t f_owner; /* user that mounted the filesystem */
fsid_t f_fsid; /* filesystem id */
char f_charspare[80]; /* spare string space */
char f_fstypename[MFSNAMELEN]; /* filesystem type name */
char f_mntfromname[MNAMELEN]; /* mounted filesystem */
char f_mntonname[MNAMELEN]; /* directory on which mounted */
};
.Ed
.Pp
The flags that may be returned include:
.Bl -tag -width MNT_SYNCHRONOUS
.It Dv MNT_RDONLY
@ -108,6 +114,27 @@ Special files in the file system may not be opened.
All I/O to the file system is done synchronously.
.It Dv MNT_ASYNC
No file system I/O is done synchronously.
.It Dv MNT_SOFTDEP
Soft updates being done (see
.Xr ffs 7).
.It Dv MNT_SUIDDIR
Special handling of SUID bit on directories.
.It Dv MNT_UNION
Union with underlying filesystem.
.It Dv MNT_NOSYMFOLLOW
Symbolic links are not followed.
.It Dv MNT_NOCLUSTERR
Read clustering is disabled.
.It Dv MNT_NOCLUSTERW
Write clustering is disabled.
.\".It Dv MNT_JAILDEVFS
.\"XXX
.It Dv MNT_MULTILABEL
Mandatory Access Control (MAC) support for individual objects
(see
.Xr mac 4).
.It Dv MNT_ACLS
Access Control List (ACL) support enabled.
.It Dv MNT_LOCAL
The file system resides locally.
.It Dv MNT_QUOTA
@ -116,6 +143,12 @@ The file system has quotas enabled on it.
Identifies the root file system.
.It Dv MNT_EXRDONLY
The file system is exported read-only.
.It Dv MNT_NOATIME
Updating of file access times is disabled.
.It Dv MNT_USER
The file system has been mounted by a user.
.\".It Dv MNT_IGNORE
.\"XXX
.It Dv MNT_EXPORTED
The file system is exported for both reading and writing.
.It Dv MNT_DEFEXPORTED
@ -124,6 +157,8 @@ The file system is exported for both reading and writing to any Internet host.
The file system maps all remote accesses to the anonymous user.
.It Dv MNT_EXKERB
The file system is exported with Kerberos uid mapping.
.It Dv MNT_EXPUBLIC
The file system is exported publicly (WebNFS).
.El
.Pp
Fields that are undefined for a particular file system are set to -1.