Commit Graph

89 Commits

Author SHA1 Message Date
Konstantin Belousov
a66732de4f Print type designator 'D' for the KF_TYPE_DEV files.
No type-specific data is provided by the kernel.

Sponsored by:	Mellanox Technologies
MFC after:	1 week
2018-12-03 23:42:04 +00:00
Pedro F. Giffuni
8a16b7a18f General further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.
2017-11-20 19:49:47 +00:00
Andriy Gapon
40ea8d27de fstat: catch up with r318997 and use 64 bits to store fsid
Discussed with:	kib
2017-06-10 20:38:52 +00:00
Warner Losh
fbbd9655e5 Renumber copyright clause 4
Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is too pedantic, so give up on that point.

Submitted by:	Jan Schaumann <jschauma@stevens.edu>
Pull Request:	https://github.com/freebsd/freebsd/pull/96
2017-02-28 23:42:47 +00:00
John Baldwin
958aa57537 Similar to 233760 and 236717, export some more useful info about the
kernel-based POSIX semaphore descriptors to userland via procstat(1) and
fstat(1):
- Change sem file descriptors to track the pathname they are associated
  with and add a ksem_info() method to copy the path out to a
  caller-supplied buffer.
- Use the fo_stat() method of shared memory objects and ksem_info() to
  export the path, mode, and value of a semaphore via struct kinfo_file.
- Add a struct semstat to the libprocstat(3) interface along with a
  procstat_get_sem_info() to export the mode and value of a semaphore.
- Teach fstat about semaphores and to display their path, mode, and value.

MFC after:	2 weeks
2013-05-03 21:11:57 +00:00
Gleb Kurtsou
e458cb776e Don't cast inode number or file size down to long or unsigned.
Since ino_t size is about to change to 64-bits, casts to long would
truncate 64-bit numbers on 32-bit archs.

Sponsored by:	Google Summer of Code 2011
2012-05-18 10:15:46 +00:00
John Baldwin
e506e182dd Export some more useful info about shared memory objects to userland
via procstat(1) and fstat(1):
- Change shm file descriptors to track the pathname they are associated
  with and add a shm_path() method to copy the path out to a caller-supplied
  buffer.
- Use the fo_stat() method of shared memory objects and shm_path() to
  export the path, mode, and size of a shared memory object via
  struct kinfo_file.
- Add a struct shmstat to the libprocstat(3) interface along with a
  procstat_get_shm_info() to export the mode and size of a shared memory
  object.
- Change procstat to always print out the path for a given object if it
  is valid.
- Teach fstat about shared memory objects and to display their path,
  mode, and size.

MFC after:	2 weeks
2012-04-01 18:22:48 +00:00
Sergey Kandaurov
b4fe201c19 Backout r230934 which didn't work with unix sockets and
several filesystem layers mounted at the specified path.

Pointy hat to:	pluknet
2012-02-27 17:39:34 +00:00
Sergey Kandaurov
e22c40fa79 Print the owner process for unix domain sockets when restricted to the
specified files.

PR:		bin/143962
MFC after:	2 weeks
2012-02-03 09:07:53 +00:00
Ulrich Spörlein
487ac9ac21 Spelling fixes for usr.bin/ 2011-12-30 11:02:40 +00:00
Ed Schouten
357050fc0e Mark global functions and/or variables in fstat(1) static where possible.
This allows compilers and static analyzers to more thorough analysis.
2011-11-06 18:49:36 +00:00
Ed Schouten
05806a06c5 Correct column with for device numbers made in previous change.
The device number should be displayed using only five columns -- not eight.
2011-10-01 09:16:07 +00:00
Ed Schouten
9f365aa1d6 Get rid of major/minor number distinction.
As of FreeBSD 6, devices can only be opened through devfs. These device
nodes don't have major and minor numbers anymore. The st_rdev field in
struct stat is simply based a copy of st_ino.

Simply display device numbers as hexadecimal, using "%#jx". This is
allowed by POSIX, since it explicitly states things like the following
(example taken from ls(1)):

	"If the file is a character special or block special file, the
	size of the file may be replaced with implementation-defined
	information associated with the device in question."

This makes the output of these commands more compact. For example, ls(1)
now uses approximately four columns less. While there, simplify the
column length calculation from ls(1) by calling snprintf() with a NULL
buffer.

Don't be afraid; if needed one can still obtain individual major/minor
numbers using stat(1).
2011-09-28 18:53:36 +00:00
Warner Losh
8d917b4b49 uintmax_t is a better type here...
Submitted by:	avg@
2011-05-12 19:10:00 +00:00
Warner Losh
76db9ccfbe Fix printf int mismatch on 32-bit architectures... 2011-05-12 17:02:56 +00:00
Stanislav Sedov
0daf62d9f5 - Commit work from libprocstat project. These patches add support for runtime
file and processes information retrieval from the running kernel via sysctl
  in the form of new library, libprocstat.  The library also supports KVM backend
  for analyzing memory crash dumps.  Both procstat(1) and fstat(1) utilities have
  been modified to take advantage of the library (as the bonus point the fstat(1)
  utility no longer need superuser privileges to operate), and the procstat(1)
  utility is now able to display information from memory dumps as well.

  The newly introduced fuser(1) utility also uses this library and able to operate
  via sysctl and kvm backends.

  The library is by no means complete (e.g. KVM backend is missing vnode name
  resolution routines, and there're no manpages for the library itself) so I
  plan to improve it further.  I'm commiting it so it will get wider exposure
  and review.

  We won't be able to MFC this work as it relies on changes in HEAD, which
  was introduced some time ago, that break kernel ABI.  OTOH we may be able
  to merge the library with KVM backend if we really need it there.

Discussed with:	rwatson
2011-05-12 10:11:39 +00:00
Joel Dahl
da52b4caaf Remove the advertising clause from UCB copyrighted files in usr.bin. This
is in accordance with the information provided at
ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change

Also add $FreeBSD$ to a few files to keep svn happy.

Discussed with:	imp, rwatson
2010-12-11 08:32:16 +00:00
Andriy Gapon
497e910cd3 fstat: fix fsid comparison when executed on systems with 64-bit long
This affects only fstat on zfs and devfs, only on 64-bit systems
and only when fsid is greater than 2^31 - 1.
When fstat examines a file via stat(2) it takes uint32_t st_dev
and assigns to (signed) (64-bit) long fsid, this results in
a positive value.
When fstat examines opened files it takes int32_t f_fsid.val[0]
and assigns to (signed) (64-bit) long fsid, this results in
a negative value.
So, while initially st_dev and f_fsid.val[0] have the same bit
values they get promoted to different 64-bit values because
of the signed-vs-unsigned difference.

A fix is to use "more natural" positive numbers by introducing
intermediate unsigned cast for f_fsid.val[0].

Reviewed by:	jhb, lulf
Approved by:	re (kib)
MFC after:	1 week (to stable/7)
2009-08-20 10:57:14 +00:00
Doug Rabson
0775314b63 Don't use sys/nfs/rpcv2.h - it is part of the old kernel RPC implementation
and will be removed.
2009-06-24 18:42:21 +00:00
Ed Schouten
bc093719ca Integrate the new MPSAFE TTY layer to the FreeBSD operating system.
The last half year I've been working on a replacement TTY layer for the
FreeBSD kernel. The new TTY layer was designed to improve the following:

- Improved driver model:

  The old TTY layer has a driver model that is not abstract enough to
  make it friendly to use. A good example is the output path, where the
  device drivers directly access the output buffers. This means that an
  in-kernel PPP implementation must always convert network buffers into
  TTY buffers.

  If a PPP implementation would be built on top of the new TTY layer
  (still needs a hooks layer, though), it would allow the PPP
  implementation to directly hand the data to the TTY driver.

- Improved hotplugging:

  With the old TTY layer, it isn't entirely safe to destroy TTY's from
  the system. This implementation has a two-step destructing design,
  where the driver first abandons the TTY. After all threads have left
  the TTY, the TTY layer calls a routine in the driver, which can be
  used to free resources (unit numbers, etc).

  The pts(4) driver also implements this feature, which means
  posix_openpt() will now return PTY's that are created on the fly.

- Improved performance:

  One of the major improvements is the per-TTY mutex, which is expected
  to improve scalability when compared to the old Giant locking.
  Another change is the unbuffered copying to userspace, which is both
  used on TTY device nodes and PTY masters.

Upgrading should be quite straightforward. Unlike previous versions,
existing kernel configuration files do not need to be changed, except
when they reference device drivers that are listed in UPDATING.

Obtained from:		//depot/projects/mpsafetty/...
Approved by:		philip (ex-mentor)
Discussed:		on the lists, at BSDCan, at the DevSummit
Sponsored by:		Snow B.V., the Netherlands
dcons(4) fixed by:	kan
2008-08-20 08:31:58 +00:00
Konstantin Belousov
05427aafc6 Struct cdev is always the member of the struct cdev_priv. When devfs
needed to promote cdev to cdev_priv, the si_priv pointer was followed.

Use member2struct() to calculate address of the wrapping cdev_priv.
Rename si_priv to __si_reserved.

Tested by:	pho
Reviewed by:	ed
MFC after:	2 weeks
2008-06-16 17:34:59 +00:00
Ed Schouten
436f2e5275 Fix build of fstat after minor() changes.
Even though I ran a `make universe' to see whether the changes to the
device minor number macro's broke the build, I was not expecting `make
universe' to silently continue if build errors occured, thus causing me
to overlook the build error.

Approved by:	philip (mentor)
Pointyhat to:	me
2008-06-12 10:15:14 +00:00
Pawel Jakub Dawidek
037dab5792 Use _WANT_FILE to make struct file visible from userland. This is
similar to _WANT_UCRED and _WANT_PRISON and seems to be much nicer than
defining _KERNEL.
It is also needed for my sys/refcount.h change going in soon.
2008-05-26 15:12:47 +00:00
John Baldwin
02e50214ff Only output details about the current working directory of a process if
the vnode pointer is not NULL.  This avoids spurious warnings in fstat -v
output for kernel processes.

MFC after:	1 week
PR:		amd64/123456
Submitted by:	KOIE Hidetaka | hide koie.org
2008-05-07 17:49:31 +00:00
Ulf Lilleengen
eec1c21f61 - Add ZFS-support to fstat(1). This allows ZFS-filsystems to be including in
the open file-listing. It is added as a separate source file, so it can
  respect WITH_/WITHOUT_CDDL as compile-flags.
- The warnlevel of the Makefile was decreased to quell solaris #pragma
  warnings.
- Expect that fstat(1) doesn't work with kernel compiled with
  DEBUG_VFS_LOCKS/DEBUG_LOCKS for now.

Approved by:	pjd (mentor)
2007-11-05 23:15:03 +00:00
Ed Maste
f9feee175b KERN_PROC_ALL produces a kinfo_proc for each thread in a process, which
caused fstat to produce duplicated output for threaded processes.  Instead
use KERN_PROC_PROC to get just one kinfo_proc per process.

MFC After:	2 weeks
2007-03-09 16:21:40 +00:00
Tor Egge
82be0a5a24 Add marker vnodes to ensure that all vnodes associated with the mount point are
iterated over when using MNT_VNODE_FOREACH.

Reviewed by:	truckman
2006-01-09 20:42:19 +00:00
Christian S.J. Peron
997591ca96 Un-break processing of device major/minor values with fstat -n. We do
this by accessing the cdev_priv element of the cdev structure. Looking
forward we need a better way to handle this, as this structure shouldn't
be frobbed by userspace.

Submitted by:	Doug Steinwand
PR:		bin/88203
MFC after:	1 week
Discussed with:	phk
2005-11-05 23:38:08 +00:00
Christian S.J. Peron
a4cdc0452a Introduce kdevtoname, which when given the kernel address of a
cdev structure, returns the device name associated with it through
the __si_namebuf member. This un-breaks the processing of devices.

This is a RELENG_6 candidate.

Reviewed by:	phk
2005-07-30 20:00:13 +00:00
Ruslan Ermilov
f682f10c76 Sync program's usage() with manpage's SYNOPSIS. 2005-05-21 09:55:10 +00:00
Poul-Henning Kamp
dc2f8e798b Dike out unwarranted si_udev fondling. 2005-03-15 14:30:26 +00:00
Poul-Henning Kamp
5dc1f79ed8 Report jail directory if set.
Sanity-check fd_lastfile.

PR:	62699
Patch by:	"Mark W. Krentel" <krentel@dreamscape.com>
2005-01-29 11:38:00 +00:00
Suleiman Souhlal
7a13f01f6f Get the vnode from file.f_vnode instead of file.f_data.
Nowadays, f_data points to the vnode only if the underlying filesystem
doesn't use it for other purposes (devfs uses it to store the cdev,
for example).

Found by:	csjp
Reviewed by:	csjp
Approved by:	phk, wes, grehan (mentor)
MFC after:	1 week
2005-01-11 18:52:12 +00:00
Poul-Henning Kamp
e93bd4ef59 filedesc0 is an internal detail of the kernel, don't look at it. 2004-11-07 20:38:29 +00:00
Mike Silbersack
27eabced44 Slide pipe.h include after the _KERNEL define in preparation for disallowing
non-_KERNEL inclusions of pipe.h
2004-07-21 03:07:50 +00:00
David Malone
1e925017b3 1) ANSIfy.
2) Use %p to print a pointer.
3) Use longs for fileids and ino to avoid comparing signed and unsigned.
4) Make the KVM_READ macro a little more cranky.
5) Set WARNS while I'm here.
2004-06-29 21:28:09 +00:00
Poul-Henning Kamp
f3732fd15b 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.
2004-06-17 17:16:53 +00:00
Robert Watson
97b88fbf30 Teach fstat(1) about new location for socket state flags relating to
socket buffer state.

Submitted by:	rik
Reminded by:	le
2004-06-14 20:54:18 +00:00
John-Mark Gurney
ab1897e943 fix this code properly. msdosfs can't have device nodes on them.
comment how to read device nodes from ufs (if an adventurous soul wants
to fix it!).

Reviewed by:	bde
2003-06-24 08:18:18 +00:00
Maxim Konovalov
c30afbc578 o Fix rev. 1.41, print a header. -STABLE is OK.
PR:		bin/53585
Submitted by:	Alexey Dokuchaev <danfe@regency.nsu.ru>
2003-06-23 08:43:19 +00:00
John-Mark Gurney
cf56713abf correct spelling of struct cdev * from dev_t which is a 32bit type and
isn't very useful for passing pointers on LP64 systems.

device names on sparc64 and alpha should now work.
2003-06-19 02:09:22 +00:00
Matthew Dillon
48e3128b34 Bow to the whining masses and change a union back into void *. Retain
removal of unnecessary casts and throw in some minor cleanups to see if
anyone complains, just for the hell of it.
2003-01-13 00:33:17 +00:00
Matthew Dillon
cd72f2180b Change struct file f_data to un_data, a union of the correct struct
pointer types, and remove a huge number of casts from code using it.

Change struct xfile xf_data to xun_data (ABI is still compatible).

If we need to add a #define for f_data and xf_data we can, but I don't
think it will be necessary.  There are no operational changes in this
commit.
2003-01-12 01:37:13 +00:00
Poul-Henning Kamp
ca916247cd Rename struct specinfo to the more appropriate struct cdev.
Agreed on:	jake, rwatson, jhb
2002-09-27 18:27:10 +00:00
Nate Lawson
e47c217844 Userland changes to go with vnode->v_tag change. 2002-09-14 18:51:10 +00:00
Bosko Milekic
d8aadd88cf Unbreak building of fstat following version 1.23 of
src/sys/ufs/ufs/quota.h by including mount.h before ufs/quota.h.
2002-08-14 16:34:13 +00:00
David E. O'Brien
e026a48c34 Consistently use FBSDID 2002-06-30 05:25:07 +00:00
Kirk McKusick
1c85e6a35d 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>
2002-06-21 06:18:05 +00:00
Dag-Erling Smørgrav
1f910d6cae Factor out some code in preparation for un-kmeming fstat(1).
Sponsored by:	DARPA, NAI Labs
2002-06-06 18:39:53 +00:00
David Malone
27d57ea9bf Fix constness warnings.
Remove register keyword.
Don't initialise "badtype" in declaration - it was initialised below anyway.
Remove prototype for strcpy.
2002-03-30 14:03:53 +00:00