Commit Graph

12572 Commits

Author SHA1 Message Date
Xin LI
4f0d3f44e0 Consider flag == 0 as the same of flag == R_NEXT. This change will restore
a historical behavior that has been changed by revision 190491, and has seen
to break exim.
2009-08-24 23:44:07 +00:00
Ed Schouten
00ee13a0af Our implementation of granpt(3) could be valid in the future.
When I wrote the pseudo-terminal driver for the MPSAFE TTY code, Robert
Watson and I agreed the best way to implement this, would be to let
posix_openpt() create a pseudo-terminal with proper permissions in place
and let grantpt() and unlockpt() be no-ops.

This isn't valid behaviour when looking at the spec. Because I thought
it was an elegant solution, I filed a bug report at the Austin Group
about this. In their last teleconference, they agreed on this subject.
This means that future revisions of POSIX may allow grantpt() and
unlockpt() to be no-ops if an open() on /dev/ptmx (if the implementation
has such a device) and posix_openpt() already do the right thing.

I'd rather put this in the manpage, because simply mentioning we don't
comply to any standard makes it look worse than it is. Right now we
don't, but at least we took care of it.

Approved by:	re (kib)
MFC after:	3 days
2009-08-24 11:16:44 +00:00
Joseph Koshy
dd1259dafb Use a more appropriate choice of words.
Submitted by:	danfe
2009-08-23 14:48:25 +00:00
Joseph Koshy
ef58215868 Use US spellings, fix typos. 2009-08-23 07:32:30 +00:00
Joseph Koshy
cbd3e3c8ad Fix typos. 2009-08-23 07:31:10 +00:00
Joseph Koshy
445f22cfe7 Fix a typo. 2009-08-23 07:30:12 +00:00
Joseph Koshy
a2cd12e7a0 Fix typos, use American English spellings. 2009-08-23 07:29:34 +00:00
Joseph Koshy
7dfdb5c882 Fix typos. 2009-08-23 07:24:39 +00:00
Joseph Koshy
abb0a58ed9 Correct typos. 2009-08-23 06:22:31 +00:00
Joseph Koshy
5dcb8c704e Correct grammar. 2009-08-23 06:19:02 +00:00
Joseph Koshy
b53a052da8 Fix a typo.
Reported by:	John McCullough <jmccullo at cs.ucsd.edu>
2009-08-23 05:49:12 +00:00
Joseph Koshy
f20a61ffe6 Fix typos.
Reported by:	Harald Servat <redcrash at gmail dot com>
2009-08-23 05:47:33 +00:00
Bjoern A. Zeeb
87a61ebd4c Rather than replicating the maths from the kernel, use the
value the kernel calculated directly as we already read it
with struct vnet.  This will make kvm_vnet.c more resilent
in case of possible kernel changes.

Reviewed by:	rwatson
Approved by:	re (kib)
2009-08-13 14:59:04 +00:00
Robert Watson
3a67af38ba Update posix1e-related man pages, especially as relates to MAC, to more
accurately reflect the last ten years of work.

Approved by:	re (kib)
2009-08-12 10:46:48 +00:00
Robert Watson
530c006014 Merge the remainder of kern_vimage.c and vimage.h into vnet.c and
vnet.h, we now use jails (rather than vimages) as the abstraction
for virtualization management, and what remained was specific to
virtual network stacks.  Minor cleanups are done in the process,
and comments updated to reflect these changes.

Reviewed by:	bz
Approved by:	re (vimage blanket)
2009-08-01 19:26:27 +00:00
Alfred Perlstein
390065b18e LibUSB v1.0:
- Significantly improve libusb10 support.
        - Many minor issues fixed.
        - P4 ID: 166189, 165853, 165991, 166052, 166069

Submitted by:	hps
Approved by:	re
2009-07-30 00:11:41 +00:00
Tim Kientzle
33fe28bbcd The parser for Rockridge symlinks tended to insert
extra slashes at the beginning of absolute targets.

Thanks to Jung-uk Kim for pointing this out to me.

Approved by:	re (kib)
2009-07-26 18:11:44 +00:00
Alan Cox
5592fb2f9b Eliminate a stale paragraph from the BUGS section. This "bug" was
eliminated in r195693.

Approved by:	re (kensmith)
2009-07-26 06:38:56 +00:00
Tim Kientzle
e2f1f1fb00 Libarchive recognizes hardlinked files on ISO images,
but returned them incorrectly, causing tar to actually
erase the resulting file while trying to restore the
link.  This one-line fix corrects the hardlink descriptions
to avoid this problem.

Thanks to Jung-uk Kim for pointing this out.

Approved by:	re (kib)
2009-07-25 18:11:55 +00:00
Jamie Gritton
7cbf72137f Some jail parameters (in particular, "ip4" and "ip6" for IP address
restrictions) were found to be inadequately described by a boolean.
Define a new parameter type with three values (disable, new, inherit)
to handle these and future cases.

Approved by:	re (kib), bz (mentor)
Discussed with:	rwatson
2009-07-25 14:48:57 +00:00
Brooks Davis
1b5768be71 Revert the changes to struct kinfo_proc in r194498. Instead, fill
in up to 16 (KI_NGROUPS) values and steal a bit from ki_cr_flags
(all bits currently unused) to indicate overflow with the new flag
KI_CRF_GRP_OVERFLOW.

This fixes procstat -s.

Approved by: re (kib)
2009-07-24 15:03:10 +00:00
Bjoern A. Zeeb
7cf8b4b933 Make libkvm work on live systems and crashdumps with and
without VIMAGE virtualization in the kernel.

If we cannot resolve a symbol try to see if we can find it with
prefix of the virtualized subsystem, currently only "vnet_entry"
by identifying either the vnet of the current process for a
live system or the vnet of proc0 (or of dumptid if compiled
in a non-default way).

The way this is done currently allows us to only touch libkvm
but no single application. Once we are going to virtualize more
subsystems we will have to review this decision for better scaling.

Submitted by:	rwatson (initial version of kvm_vnet.c, lots of ideas)
Reviewed by:	rwatson
Approved by:	re (kib)
2009-07-23 21:12:21 +00:00
Ken Smith
764eca2591 It is believed the last subsystem that limited ID sizes to something
other than the current system-wide size (32-bits) has been updated so
for now just cautiously turn the check off.  While here fix the check
for IDs being too large which doesn't work due to type mis-matches.

Reviewed by:    jhb (previous version)
Approved by:	re (kib)
MFC after:	1 month (type mis-match fixes only)
2009-07-22 20:46:17 +00:00
Ken Smith
3ca3047aee Bump the version of all non-symbol-versioned shared libraries in
preparation for 8.0-RELEASE.  Add the previous version of those
libraries to ObsoleteFiles.inc and bump __FreeBSD_Version.

Reviewed by:    kib
Approved by:    re (rwatson)
2009-07-19 17:25:24 +00:00
Jilles Tjoelker
22e4c1c47c Correct AT_SYMLINK_FOLLOW flag name in linkat(2) man page.
Approved by:	re (kib), ed (mentor)
2009-07-19 16:48:25 +00:00
Navdeep Parhar
d82ccc60d9 Store accurate offset information in CTF data. A large number of
structs had incorrect member offsets, limiting dtrace's usefulness
when working with them.  An example of incorrect info (struct
rtentry) from before this fix:

<1738> STRUCT rtentry (200 bytes)
      rt_nodes type=1731 off=0
      rt_gateway type=849 off=65280 <== WRONG, should be 8 * 96
      rt_flags type=3 off=65344     <== wrong again, and so on..
...

Approved by:	re (kib), gnn (mentor)
MFC after:	2 weeks
2009-07-17 21:15:09 +00:00
Konstantin Belousov
49e8c06b45 Implement RTLD_NOLOAD flag for dlopen(3).
Requested and tested by:	jkim
Reviewed by:	kan
Approved by:	re (kensmith)
2009-07-17 19:45:42 +00:00
Alexander Kabaev
2286fe7635 Second attempt at eliminating .text relocations in shared libraries
compiled with stack protector.

Use libssp_nonshared library to pull __stack_chk_fail_local symbol into
each library that needs it instead of pulling it from libc. GCC
generates local calls to this function which result in absolute
relocations put into position-independent code segment, making dynamic
loader do extra work every time given shared library is being relocated
and making affected text pages non-shareable.

Reviewed by:        kib
Approved by:        re (kib)
2009-07-14 21:19:13 +00:00
John Baldwin
0fe0ed8bf8 - Change mmap() to fail requests with EINVAL that pass a length of 0. This
behavior is mandated by POSIX.
- Do not fail requests that pass a length greater than SSIZE_MAX
  (such as > 2GB on 32-bit platforms).  The 'len' parameter is actually
  an unsigned 'size_t' so negative values don't really make sense.

Submitted by:	Alexander Best  alexbestms at math.uni-muenster.de
Reviewed by:	alc
Approved by:	re (kib)
MFC after:	1 week
2009-07-14 19:45:36 +00:00
Edward Tomasz Napierala
ec71a417a8 Add missing MLINKS for acl_{get,set}_link_fd(3).
Approved by:	re (kib)
2009-07-14 19:37:53 +00:00
Edward Tomasz Napierala
e64e7115aa Move msg{snd,recv,get,ctl} manual pages from section 3 to 2.
Approved by:	re (kib)
2009-07-13 12:53:43 +00:00
Ed Schouten
77822acff7 Fix fwrite() to return 0 when size or nmemb are zero.
Right now nmemb is returned when size is 0. In newer versions of the
standards, it is explicitly required that fwrite() should return 0.

Submitted by:	Christoph Mallon
Approved by:	re (kib)
2009-07-12 13:09:43 +00:00
Andrew Thompson
c500e4dd03 Sync the libusb 1.0 exported api to the latest GSoC code.
- Fix possible uninitialised variables and null derefs
 - Support big transfers
 - Various bug fixes and style changes

Submitted by:	Sylvestre Gallon
Sponsored by:	Google Summer of Code 2009
Approved by:	re (kib)
2009-07-10 14:15:53 +00:00
Scott Long
52c9ce25d8 Separate the parallel scsi knowledge out of the core of the XPT, and
modularize it so that new transports can be created.

Add a transport for SATA

Add a periph+protocol layer for ATA

Add a driver for AHCI-compliant hardware.

Add a maxio field to CAM so that drivers can advertise their max
I/O capability.  Modify various drivers so that they are insulated
from the value of MAXPHYS.

The new ATA/SATA code supports AHCI-compliant hardware, and will override
the classic ATA driver if it is loaded as a module at boot time or compiled
into the kernel.  The stack now support NCQ (tagged queueing) for increased
performance on modern SATA drives.  It also supports port multipliers.

ATA drives are accessed via 'ada' device nodes.  ATAPI drives are
accessed via 'cd' device nodes.  They can all be enumerated and manipulated
via camcontrol, just like SCSI drives.  SCSI commands are not translated to
their ATA equivalents; ATA native commands are used throughout the entire
stack, including camcontrol.  See the camcontrol manpage for further
details.  Testing this code may require that you update your fstab, and
possibly modify your BIOS to enable AHCI functionality, if available.

This code is very experimental at the moment.  The userland ABI/API has
changed, so applications will need to be recompiled.  It may change
further in the near future.  The 'ada' device name may also change as
more infrastructure is completed in this project.  The goal is to
eventually put all CAM busses and devices until newbus, allowing for
interesting topology and management options.

Few functional changes will be seen with existing SCSI/SAS/FC drivers,
though the userland ABI has still changed.  In the future, transports
specific modules for SAS and FC may appear in order to better support
the topologies and capabilities of these technologies.

The modularization of CAM and the addition of the ATA/SATA modules is
meant to break CAM out of the mold of being specific to SCSI, letting it
grow to be a framework for arbitrary transports and protocols.  It also
allows drivers to be written to support discrete hardware without
jeopardizing the stability of non-related hardware.  While only an AHCI
driver is provided now, a Silicon Image driver is also in the works.
Drivers for ICH1-4, ICH5-6, PIIX, classic IDE, and any other hardware
is possible and encouraged.  Help with new transports is also encouraged.

Submitted by:	scottl, mav
Approved by:	re
2009-07-10 08:18:08 +00:00
Edward Tomasz Napierala
c38898116a There is an optimization in chmod(1), that makes it not to call chmod(2)
if the new file mode is the same as it was before; however, this
optimization must be disabled for filesystems that support NFSv4 ACLs.
Chmod uses pathconf(2) to determine whether this is the case - however,
pathconf(2) always follows symbolic links, while the 'chmod -h' doesn't.

This change adds lpathconf(3) to make it possible to solve that problem
in a clean way.

Reviewed by:	rwatson (earlier version)
Approved by:	re (kib)
2009-07-08 15:23:18 +00:00
Attilio Rao
137ae5d291 In the current code, rdlock_count is not correctly handled for some cases.
The most notable is that it is not bumped in rwlock_rdlock_common() when
the hard path (__thr_rwlock_rdlock()) returns successfully.
This can lead to deadlocks in libthr when rwlocks recursion in read mode
happens.
Fix the interested parts by correctly handling rdlock_count.

PR:		threads/136345
Reported by:	rink
Tested by:	rink
Reviewed by:	jeff
Approved by:	re (kib)
MFC:		2 weeks
2009-07-06 09:31:04 +00:00
Pawel Jakub Dawidek
69a789b985 - Don't suggest opening file for writing in preparation for fexecve(2).
- execve(2)/fexecve(2) won't return ETXTBSY if file is open for reading.

Approved by:	re (kib)
2009-07-05 20:20:09 +00:00
Edward Tomasz Napierala
bc8036862b Make it clear where to look for for protocol-specific socket options.
Reviewed by:	rwatson
Approved by:	re (kib)
2009-06-30 20:53:56 +00:00
Konstantin Belousov
8c8484d103 Make the structure definitions in the man pages match the real code, and
remove no longer valid caution.

Approved by:	re (kensmith)
2009-06-29 18:54:17 +00:00
Alexander Kabaev
d48890cfb8 Back out previous revision until better tested fix is ready.
Approved by: re (impliciti, by approving previos check-in)
2009-06-29 01:33:59 +00:00
Alexander Kabaev
a162c9ae9c Eliminate .text relocations in shared libraries compiled with stack protector.
Use libssp_nonshared library to pull __stack_chk_fail_local symbol into
each library that needs it instead of pulling it from libc. GCC generates
local calls to this function which result in absolute relocations put into
position-independent code segment, making dynamic loader do extra work everys
time given shared library is being relocated and making affected text pages
non-shareable.

Reviewed by:        kib
Approved by:        re (kensmith)
2009-06-28 23:51:39 +00:00
Xin LI
40523da708 Implement %z for strptime.
PR:		kern/63064
Submitted by:	Stefan `Sec` Zehl <sec 42 org> (with some small changes)
MFC after:	1 month
2009-06-25 23:59:23 +00:00
Jamie Gritton
69ea521eba Fix dynamic (re)allocation logic in jailparam_set and jailparam_get.
Touch up jailparam_import a bit while I'm at it.

Approved by:	bz (mentor)
2009-06-25 22:42:19 +00:00
Edward Tomasz Napierala
c3380d406a Fix acl_set_fd(3) and acl_get_fd(3) for cases where the kernel doesn't know
anything about _PC_ACL_NFS4.
2009-06-25 20:57:53 +00:00
Edward Tomasz Napierala
b372d0d8bc Manual page tweaks. 2009-06-25 16:34:29 +00:00
Edward Tomasz Napierala
85e71e24c5 Fix c194955 - somehow I managed all the new files, tripling their
contents.
2009-06-25 13:08:02 +00:00
Edward Tomasz Napierala
ca48e73a18 Bump manual page timestamps. 2009-06-25 12:53:50 +00:00
Edward Tomasz Napierala
aa015c8e4a Add NFSv4 ACL support to libc.
This adds the following functions to the acl(3) API: acl_add_flag_np,
acl_clear_flags_np, acl_create_entry_np, acl_delete_entry_np,
acl_delete_flag_np, acl_get_extended_np, acl_get_flag_np, acl_get_flagset_np,
acl_set_extended_np, acl_set_flagset_np, acl_to_text_np, acl_is_trivial_np,
acl_strip_np, acl_get_brand_np.  Most of them are similar to what Darwin
does.  There are no backward-incompatible changes.

Approved by:    rwatson@
2009-06-25 12:46:59 +00:00
Xin LI
5f4faf74cb Lock around access to nc_file and netconfig_info ("ni"). The RPC
part of libc is still not thread safe but this would at least
reduce the problems we have.

PR:		threads/118544
Submitted by:	Changming Sun <snnn119 gmail com>
MFC after:	2 weeks
2009-06-24 23:17:16 +00:00
John Baldwin
b648d4806b Change the ABI of some of the structures used by the SYSV IPC API:
- The uid/cuid members of struct ipc_perm are now uid_t instead of unsigned
  short.
- The gid/cgid members of struct ipc_perm are now gid_t instead of unsigned
  short.
- The mode member of struct ipc_perm is now mode_t instead of unsigned short
  (this is merely a style bug).
- The rather dubious padding fields for ABI compat with SV/I386 have been
  removed from struct msqid_ds and struct semid_ds.
- The shm_segsz member of struct shmid_ds is now a size_t instead of an
  int.  This removes the need for the shm_bsegsz member in struct
  shmid_kernel and should allow for complete support of SYSV SHM regions
  >= 2GB.
- The shm_nattch member of struct shmid_ds is now an int instead of a
  short.
- The shm_internal member of struct shmid_ds is now gone.  The internal
  VM object pointer for SHM regions has been moved into struct
  shmid_kernel.
- The existing __semctl(), msgctl(), and shmctl() system call entries are
  now marked COMPAT7 and new versions of those system calls which support
  the new ABI are now present.
- The new system calls are assigned to the FBSD-1.1 version in libc.  The
  FBSD-1.0 symbols in libc now refer to the old COMPAT7 system calls.
- A simplistic framework for tagging system calls with compatibility
  symbol versions has been added to libc.  Version tags are added to
  system calls by adding an appropriate __sym_compat() entry to
  src/lib/libc/incldue/compat.h. [1]

PR:		kern/16195 kern/113218 bin/129855
Reviewed by:	arch@, rwatson
Discussed with:	kan, kib [1]
2009-06-24 21:10:52 +00:00