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293474 |
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09-Jan-2016 |
dchagin |
MFC r277610 (by jillies):
Add futimens and utimensat system calls.
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256281 |
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10-Oct-2013 |
gjb |
Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.
Approved by: re (implicit) Sponsored by: The FreeBSD Foundation |
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254627 |
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21-Aug-2013 |
ken |
Expand the use of stat(2) flags to allow storing some Windows/DOS and CIFS file attributes as BSD stat(2) flags.
This work is intended to be compatible with ZFS, the Solaris CIFS server's interaction with ZFS, somewhat compatible with MacOS X, and of course compatible with Windows.
The Windows attributes that are implemented were chosen based on the attributes that ZFS already supports.
The summary of the flags is as follows:
UF_SYSTEM: Command line name: "system" or "usystem" ZFS name: XAT_SYSTEM, ZFS_SYSTEM Windows: FILE_ATTRIBUTE_SYSTEM
This flag means that the file is used by the operating system. FreeBSD does not enforce any special handling when this flag is set.
UF_SPARSE: Command line name: "sparse" or "usparse" ZFS name: XAT_SPARSE, ZFS_SPARSE Windows: FILE_ATTRIBUTE_SPARSE_FILE
This flag means that the file is sparse. Although ZFS may modify this in some situations, there is not generally any special handling for this flag.
UF_OFFLINE: Command line name: "offline" or "uoffline" ZFS name: XAT_OFFLINE, ZFS_OFFLINE Windows: FILE_ATTRIBUTE_OFFLINE
This flag means that the file has been moved to offline storage. FreeBSD does not have any special handling for this flag.
UF_REPARSE: Command line name: "reparse" or "ureparse" ZFS name: XAT_REPARSE, ZFS_REPARSE Windows: FILE_ATTRIBUTE_REPARSE_POINT
This flag means that the file is a Windows reparse point. ZFS has special handling code for reparse points, but we don't currently have the other supporting infrastructure for them.
UF_HIDDEN: Command line name: "hidden" or "uhidden" ZFS name: XAT_HIDDEN, ZFS_HIDDEN Windows: FILE_ATTRIBUTE_HIDDEN
This flag means that the file may be excluded from a directory listing if the application honors it. FreeBSD has no special handling for this flag.
The name and bit definition for UF_HIDDEN are identical to the definition in MacOS X.
UF_READONLY: Command line name: "urdonly", "rdonly", "readonly" ZFS name: XAT_READONLY, ZFS_READONLY Windows: FILE_ATTRIBUTE_READONLY
This flag means that the file may not written or appended, but its attributes may be changed.
ZFS currently enforces this flag, but Illumos developers have discussed disabling enforcement.
The behavior of this flag is different than MacOS X. MacOS X uses UF_IMMUTABLE to represent the DOS readonly permission, but that flag has a stronger meaning than the semantics of DOS readonly permissions.
UF_ARCHIVE: Command line name: "uarch", "uarchive" ZFS_NAME: XAT_ARCHIVE, ZFS_ARCHIVE Windows name: FILE_ATTRIBUTE_ARCHIVE
The UF_ARCHIVED flag means that the file has changed and needs to be archived. The meaning is same as the Windows FILE_ATTRIBUTE_ARCHIVE attribute, and the ZFS XAT_ARCHIVE and ZFS_ARCHIVE attribute.
msdosfs and ZFS have special handling for this flag. i.e. they will set it when the file changes.
sys/param.h: Bump __FreeBSD_version to 1000047 for the addition of new stat(2) flags.
chflags.1: Document the new command line flag names (e.g. "system", "hidden") available to the user.
ls.1: Reference chflags(1) for a list of file flags and their meanings.
strtofflags.c: Implement the mapping between the new command line flag names and new stat(2) flags.
chflags.2: Document all of the new stat(2) flags, and explain the intended behavior in a little more detail. Explain how they map to Windows file attributes.
Different filesystems behave differently with respect to flags, so warn the application developer to take care when using them.
zfs_vnops.c: Add support for getting and setting the UF_ARCHIVE, UF_READONLY, UF_SYSTEM, UF_HIDDEN, UF_REPARSE, UF_OFFLINE, and UF_SPARSE flags.
All of these flags are implemented using attributes that ZFS already supports, so the on-disk format has not changed.
ZFS currently doesn't allow setting the UF_REPARSE flag, and we don't really have the other infrastructure to support reparse points.
msdosfs_denode.c, msdosfs_vnops.c: Add support for getting and setting UF_HIDDEN, UF_SYSTEM and UF_READONLY in MSDOSFS.
It supported SF_ARCHIVED, but this has been changed to be UF_ARCHIVE, which has the same semantics as the DOS archive attribute instead of inverse semantics like SF_ARCHIVED.
After discussion with Bruce Evans, change several things in the msdosfs behavior:
Use UF_READONLY to indicate whether a file is writeable instead of file permissions, but don't actually enforce it.
Refuse to change attributes on the root directory, because it is special in FAT filesystems, but allow most other attribute changes on directories.
Don't set the archive attribute on a directory when its modification time is updated. Windows and DOS don't set the archive attribute in that scenario, so we are now bug-for-bug compatible.
smbfs_node.c, smbfs_vnops.c: Add support for UF_HIDDEN, UF_SYSTEM, UF_READONLY and UF_ARCHIVE in SMBFS.
This is similar to changes that Apple has made in their version of SMBFS (as of smb-583.8, posted on opensource.apple.com), but not quite the same.
We map SMB_FA_READONLY to UF_READONLY, because UF_READONLY is intended to match the semantics of the DOS readonly flag. The MacOS X code maps both UF_IMMUTABLE and SF_IMMUTABLE to SMB_FA_READONLY, but the immutable flags have stronger meaning than the DOS readonly bit.
stat.h: Add definitions for UF_SYSTEM, UF_SPARSE, UF_OFFLINE, UF_REPARSE, UF_ARCHIVE, UF_READONLY and UF_HIDDEN.
The definition of UF_HIDDEN is the same as the MacOS X definition.
Add commented-out definitions of UF_COMPRESSED and UF_TRACKED. They are defined in MacOS X (as of 10.8.2), but we do not implement them (yet).
ufs_vnops.c: Add support for getting and setting UF_ARCHIVE, UF_HIDDEN, UF_OFFLINE, UF_READONLY, UF_REPARSE, UF_SPARSE, and UF_SYSTEM in UFS. Alphabetize the flags that are supported.
These new flags are only stored, UFS does not take any action if the flag is set.
Sponsored by: Spectra Logic Reviewed by: bde (earlier version)
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248599 |
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21-Mar-2013 |
pjd |
Implement chflagsat(2) system call, similar to fchmodat(2), but operates on file flags.
Reviewed by: kib, jilles Sponsored by: The FreeBSD Foundation
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248597 |
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21-Mar-2013 |
pjd |
- Make 'flags' argument to chflags(2), fchflags(2) and lchflags(2) of type u_long. Before this change it was of type int for syscalls, but prototypes in sys/stat.h and documentation for chflags(2) and fchflags(2) (but not for lchflags(2)) stated that it was u_long. Now some related functions use u_long type for flags (strtofflags(3), fflagstostr(3)). - Make path argument of type 'const char *' for consistency.
Discussed on: arch Sponsored by: The FreeBSD Foundation
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238703 |
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22-Jul-2012 |
kib |
Put struct ostat and struct nstat under #ifdef _KERNEL. The compatibility definitions are only needed for implementation of the syscalls, they cause namespace pollution and are not useful for applications.
Noted by: bde MFC after: 1 week
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205792 |
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28-Mar-2010 |
ed |
Rename st_*timespec fields to st_*tim for POSIX 2008 compliance.
A nice thing about POSIX 2008 is that it finally standardizes a way to obtain file access/modification/change times in sub-second precision, namely using struct timespec, which we already have for a very long time. Unfortunately POSIX uses different names.
This commit adds compatibility macros, so existing code should still build properly. Also change all source code in the kernel to work without any of the compatibility macros. This makes it all a less ambiguous.
I am also renaming st_birthtime to st_birthtim, even though it was a local extension anyway. It seems Cygwin also has a st_birthtim.
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189817 |
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14-Mar-2009 |
das |
Various namespace cleanups, including exposing fchmod() and fchmodat() in the POSIX namespace, and hiding eaccess() and setproctitle(). Also move mknodat() from unistd.h to sys/stat.h where it belongs. The *at() syscalls are only in CURRENT, so this shouldn't cause problems.
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189354 |
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04-Mar-2009 |
das |
Add *at to the POSIX.1-2008 namespace.
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177791 |
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31-Mar-2008 |
kib |
Add the libc glue and headers definitions for the *at() syscalls.
Based on the submission by rdivacky, sponsored by Google Summer of Code 2007 Reviewed by: rwatson, rdivacky Tested by: pho
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174043 |
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28-Nov-2007 |
jb |
Remove _SOLARIS_C_SOURCE compatibility definitions. Unfortunately the ZFS porting style didn't extend this, instead using a heap of additional header files that don't get installed.
My intention had been to allow OpenSolaris external code to build on FreeBSD out of the box (i.e. without a src tree).
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160989 |
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04-Aug-2006 |
jb |
Add OpenSolaris compatibility definitions for stat64 and fstat64 which are only visible if _SOLARIS_C_SOURCE is defined.
Note thar FreeBSD stat() and fstat() are 64-bit functions now and Solaris still persists with both 32- and 64-bit versions. When I query this, I am referred to: <http://www.unix.org/version2/whatsnew/lfs20mar.html>. But when you look at the main page of unix.org you will see that the Single Unix Specification <http://www.unix.org/version3/> is the most recent standard they are pushing. And there are no stat64() fstat64() functions defined there. I guess this just goes to prove that there are so many standards, you can take your pick.
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143952 |
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21-Mar-2005 |
das |
- Declare mknod in stat.h (in addition to unistd.h), as per XSI. - Use blksize_t and blkcnt_t in struct stat. - Hide non-standard fields in stat.h when !__BSD_VISIBLE. - Add restrict qualifiers in stat.h.
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130640 |
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17-Jun-2004 |
phk |
Second half of the dev_t cleanup.
The big lines are: NODEV -> NULL NOUDEV -> NODEV udev_t -> dev_t udev2dev() -> findcdev()
Various minor adjustments including handling of userland access to kernel space struct cdev etc.
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130585 |
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16-Jun-2004 |
phk |
Do the dreaded s/dev_t/struct cdev */ Bump __FreeBSD_version accordingly.
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127976 |
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07-Apr-2004 |
imp |
Remove advertising clause from University of California Regent's license, per letter dated July 22, 1999.
Approved by: core
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115230 |
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22-May-2003 |
mike |
Fix two misuses of __BSD_VISIBLE.
Submitted by: bde Approved by: re
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112745 |
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28-Mar-2003 |
mike |
Move details of dev_t (and udev_t) to <sys/_types.h>.
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112408 |
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19-Mar-2003 |
mike |
Update some more namespaces (forgotten in the previous revision).
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112237 |
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14-Mar-2003 |
mike |
Add missing types, update standard namespaces, and use variable types that don't require <sys/types.h>.
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111969 |
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07-Mar-2003 |
ache |
Replace u_int with "unsigned int" to prevent following errors:
#include <sys/types.h> #include <sys/stat.h>
main () { }
cc -D_POSIX_C_SOURCE test.c /usr/include/sys/stat.h:127: syntax error before "u_int" /usr/include/sys/stat.h:158: syntax error before "u_int"
(u_int becomes invisible for _POSIX_C_SOURCE and some other *_SOURCE modes)
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111566 |
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26-Feb-2003 |
mike |
Change spelling of `u_int' to `unsigned int' in the POSIX case.
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111552 |
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26-Feb-2003 |
markm |
No-op. Change the type of unnamed bit-fields to unsigned to shut up warnings.
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104911 |
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11-Oct-2002 |
mike |
Use `unsigned long' instead of `u_long' so that this header compiles in X/Open case where `u_long' isn't available.
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102227 |
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21-Aug-2002 |
mike |
o Merge <machine/ansi.h> and <machine/types.h> into a new header called <machine/_types.h>. o <machine/ansi.h> will continue to live so it can define MD clock macros, which are only MD because of gratuitous differences between architectures. o Change all headers to make use of this. This mainly involves changing: #ifdef _BSD_FOO_T_ typedef _BSD_FOO_T_ foo_t; #undef _BSD_FOO_T_ #endif to: #ifndef _FOO_T_DECLARED typedef __foo_t foo_t; #define _FOO_T_DECLARED #endif
Concept by: bde Reviewed by: jake, obrien
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100201 |
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16-Jul-2002 |
mckusick |
Change the name of st_createtime to st_birthtime. This change is made to reduce confusion between st_ctime and st_createtime.
Submitted by: Eric Allman <eric@sendmail.org> Sponsored by: DARPA & NAI Labs.
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99711 |
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10-Jul-2002 |
bde |
Fixed compiling with -D_POSIX_SOURCE. The previous commit was supposed to fix this, but actually broke it a little differently by adding 2 invalid references to struct timespec while fixing 1.
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98644 |
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22-Jun-2002 |
mckusick |
This patch fixes a size problem with the stat structure for 64-bit architectures that was introduced in the UFS2 code merge two days ago. The stat structure change that caused the problem was the addition of the file create time.
Submitted by: Bruce Evans <bde@zeta.org.au> Sponsored by: DARPA & NAI Labs.
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98542 |
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21-Jun-2002 |
mckusick |
This commit adds basic support for the UFS2 filesystem. The UFS2 filesystem expands the inode to 256 bytes to make space for 64-bit block pointers. It also adds a file-creation time field, an ability to use jumbo blocks per inode to allow extent like pointer density, and space for extended attributes (up to twice the filesystem block size worth of attributes, e.g., on a 16K filesystem, there is space for 32K of attributes). UFS2 fully supports and runs existing UFS1 filesystems. New filesystems built using newfs can be built in either UFS1 or UFS2 format using the -O option. In this commit UFS1 is the default format, so if you want to build UFS2 format filesystems, you must specify -O 2. This default will be changed to UFS2 when UFS2 proves itself to be stable. In this commit the boot code for reading UFS2 filesystems is not compiled (see /sys/boot/common/ufsread.c) as there is insufficient space in the boot block. Once the size of the boot block is increased, this code can be defined.
Things to note: the definition of SBSIZE has changed to SBLOCKSIZE. The header file <ufs/ufs/dinode.h> must be included before <ufs/ffs/fs.h> so as to get the definitions of ufs2_daddr_t and ufs_lbn_t.
Still TODO: Verify that the first level bootstraps work for all the architectures. Convert the utility ffsinfo to understand UFS2 and test growfs. Add support for the extended attribute storage. Update soft updates to ensure integrity of extended attribute storage. Switch the current extended attribute interfaces to use the extended attribute storage. Add the extent like functionality (framework is there, but is currently never used).
Sponsored by: DARPA & NAI Labs. Reviewed by: Poul-Henning Kamp <phk@freebsd.org>
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96084 |
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05-May-2002 |
mux |
Add the lchflags(2) syscall.
Reviewed by: rwatson
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92719 |
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19-Mar-2002 |
alfred |
Remove __P
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90711 |
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15-Feb-2002 |
wollman |
Resurrect one of the easiest changes from my big include files roll-up patch from a year ago: give file flags their own type. This does not (yet) change the type used by system calls or library functions. The underlying type was chosen to match what is returned by stat().
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62553 |
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04-Jul-2000 |
mckusick |
Get userland visible flags added for snapshots to give a few days advance preparation for them to get migrated into place so that subsequent changes in utilities will not fail to compile for lack of up-to-date header files in /usr/include.
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55205 |
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29-Dec-1999 |
peter |
Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL" is an application space macro and the applications are supposed to be free to use it as they please (but cannot). This is consistant with the other BSD's who made this change quite some time ago. More commits to come.
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55044 |
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23-Dec-1999 |
bde |
Fixed missing declaration of lchmod(2).
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50477 |
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27-Aug-1999 |
peter |
$Id$ -> $FreeBSD$
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47050 |
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12-May-1999 |
phk |
$ brucify sys/stat.h _devt should be __dev_t $
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47028 |
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11-May-1999 |
phk |
Divorce "dev_t" from the "major|minor" bitmap, which is now called udev_t in the kernel but still called dev_t in userland.
Provide functions to manipulate both types: major() umajor() minor() uminor() makedev() umakedev() dev2udev() udev2dev()
For now they're functions, they will become in-line functions after one of the next two steps in this process.
Return major/minor/makedev to macro-hood for userland.
Register a name in cdevsw[] for the "filedescriptor" driver.
In the kernel the udev_t appears in places where we have the major/minor number combination, (ie: a potential device: we may not have the driver nor the device), like in inodes, vattr, cdevsw registration and so on, whereas the dev_t appears where we carry around a reference to a actual device.
In the future the cdevsw and the aliased-from vnode will be hung directly from the dev_t, along with up to two softc pointers for the device driver and a few houskeeping bits. This will essentially replace the current "alias" check code (same buck, bigger bang).
A little stunt has been provided to try to catch places where the wrong type is being used (dev_t vs udev_t), if you see something not working, #undef DEVT_FASCIST in kern/kern_conf.c and see if it makes a difference. If it does, please try to track it down (many hands make light work) or at least try to reproduce it as simply as possible, and describe how to do that.
Without DEVT_FASCIST I belive this patch is a no-op.
Stylistic/posixoid comments about the userland view of the <sys/*.h> files welcome now, from userland they now contain the end result.
Next planned step: make all dev_t's refer to the same devsw[] which means convert BLK's to CHR's at the perimeter of the vnodes and other places where they enter the game (bootdev, mknod, sysctl).
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35938 |
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11-May-1998 |
dyson |
Fix the futimes/undelete/utrace conflict with other BSD's. Note that the only common usage of utrace (the possible problem with this commit) is with malloc, so this should be a real problem. Add the various NetBSD syscalls that allow full emulation of their development environment.
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33803 |
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25-Feb-1998 |
bde |
Don't include <sys/time.h> if _POSIX_SOURCE is defined. This fixes longstanding namespace pollution. The need for the pollution (unconditional use of timespecs) went away in the first round of Lite2 merges (rev.1.7 for stat.h), but <sys.time.h> was still unconditionally included, and a stale comment about the need for the pollution was not removed.
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26360 |
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02-Jun-1997 |
julian |
Submitted by: Whistle Communications (archie Cobbs)
These changes add the ability to specify that a UFS file/directory cannot be unlinked. This is basically a scaled back version of the IMMUTABLE flag. The reason is to allow an administrator to create a directory hierarchy that a group of users can arbitrarily add/delete files from, but that the hierarchy itself is safe from removal by them. If the NOUNLINK definition is set to 0 then this results in no change to what happens normally. (and results in identical binary (in the kernel)). It can be proven that if this bit is never set by the admin, no new behaviour is introduced.. Several "good idea" comments from reviewers plus one grumble about creeping featurism.
This code is in production in 2.2 based systems
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24751 |
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09-Apr-1997 |
bde |
Distinguish fifos from sockets in the S_IS* macros. This is possible now that nameless pipes are not implemented as sockets.
Don't include <sys/time.h> if KERNEL is defined. It should already have been included by including <sys/param.h>. Fixed a nearby typo.
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22975 |
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22-Feb-1997 |
peter |
Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not ready for it yet.
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22521 |
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10-Feb-1997 |
dyson |
This is the kernel Lite/2 commit. There are some requisite userland changes, so don't expect to be able to run the kernel as-is (very well) without the appropriate Lite/2 userland changes.
The system boots and can mount UFS filesystems.
Untested: ext2fs, msdosfs, NFS Known problems: Incorrect Berkeley ID strings in some files. Mount_std mounts will not work until the getfsent library routine is changed.
Reviewed by: various people Submitted by: Jeffery Hsu <hsu@freebsd.org>
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21673 |
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14-Jan-1997 |
jkh |
Make the long-awaited change from $Id$ to $FreeBSD$
This will make a number of things easier in the future, as well as (finally!) avoiding the Id-smashing problem which has plagued developers for so long.
Boy, I'm glad we're not using sup anymore. This update would have been insane otherwise.
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18397 |
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19-Sep-1996 |
nate |
In sys/time.h, struct timespec is defined as:
/* * Structure defined by POSIX.4 to be like a timeval. */ struct timespec { time_t ts_sec; /* seconds */ long ts_nsec; /* and nanoseconds */ };
The correct names of the fields are tv_sec and tv_nsec.
Reminded by: James Drobina <jdrobina@infinet.com>
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14493 |
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11-Mar-1996 |
hsu |
Merge in Lite2: use fixed-width types add POSIX compatibility add union fs defines Reviewed by: davidg & bde
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8876 |
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30-May-1995 |
rgrimes |
Remove trailing whitespace.
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3304 |
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02-Oct-1994 |
phk |
Prototypes, prototypes and even more prototypes. Not quite done yet, but getting closer all the time.
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2939 |
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20-Sep-1994 |
bde |
Parenthesize macro args.
Comment #endif's.
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2617 |
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09-Sep-1994 |
dfr |
Fixed a couple of typos which made S_ISFIFO and S_ISSOCK return true for regular files.
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1817 |
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02-Aug-1994 |
dg |
Added $Id$
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1542 |
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24-May-1994 |
rgrimes |
This commit was generated by cvs2svn to compensate for changes in r1541, which included commits to RCS files with non-trunk default branches.
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1541 |
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24-May-1994 |
rgrimes |
BSD 4.4 Lite Kernel Sources
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