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Commit Graph

11970 Commits

Author SHA1 Message Date
Tim Kientzle
f5a5cfb411 When ARCHIVE_EXTRACT_PERM is requested (e.g., by "tar -p"), always
schedule a chmod() fixup for directories.  In particular, this fixes
sgid handling on systems where the sgid bit is inherited from the
parent directory (which means that the actual mode of the dir
does not match the mode used in the mkdir() system call.

It may be possible to tighten this condition a bit.  In
working through this, I also found a few other places where
it looks like we can avoid a redundant syscall or two.  I've
commented those here but not yet tried to address them.
2008-07-05 01:48:33 +00:00
Tim Kientzle
4e8f10a152 Don't use the deprecated linux/ext2_fs.h include file. 2008-07-05 01:45:31 +00:00
Peter Wemm
a11c72cfcb Add $FreeBSD$ to the uuencoded test files that didn't have them already. 2008-07-03 03:26:30 +00:00
Daniel Gerzo
05e3085a53 - AI_ALL and AI_V4MAPPED flags are currently not supported
PR:		docs/120248
Submitted by:	Heiko Wundram <wundram (a) beenic.net>
2008-07-01 22:59:20 +00:00
John Baldwin
e1355b07ee Merge hexdump(9) to userland as hexdump(3) in libutil. I'm tired of doing
this by hand in userland utilities.

MFC after:	1 month
2008-07-01 22:30:57 +00:00
Dag-Erling Smørgrav
d8c5a84b61 More explicit error message. 2008-06-30 16:19:26 +00:00
Dag-Erling Smørgrav
24cbd9936b Add missing $FreeBSD$ 2008-06-30 15:49:12 +00:00
Daniel Gerzo
345f9e9dc7 - Forgot to bump a date after last change 2008-06-30 08:46:09 +00:00
David Schultz
c4014b5086 Fix a bogon in the previous commit and add some missing error checks. 2008-06-29 23:46:06 +00:00
David Schultz
e62e5ff93f Correctly handle malloc() failure. While here, reduce the code size a
bit by removing some calls to the inline function addtype().
2008-06-29 22:54:26 +00:00
David Schultz
07bed96bd3 Factor out the code that builds the argument table. We don't need separate
normal and wide character versions of it.

No functional change.
2008-06-29 22:04:25 +00:00
David Schultz
2591efccfa Reduce the level of duplication between vfprintf() and vfwprintf()
by moving the positional argument handling code to a new file,
printf-pos.c, and moving common definitions to printflocal.h.
No functional change intended.
2008-06-29 21:52:40 +00:00
David Schultz
e5abb5e698 Begin de-spaghettifying the code that handles positional arguments.
In particular, encapsulate the state of the type table in a struct,
and add inline functions to initialize, free, and manipulate that
state. This replaces some ugly macros that made proper error handling
impossible.

While here, remove an unneeded test for NULL and a variable that is
initialized (many times!) but never used. The compiler didn't catch
these because of rampant use of the same variable to mean different
things in different places.

This commit should not cause any changes in functionality.
2008-06-29 21:01:27 +00:00
David Schultz
6b2bbb0465 Make it clearer that it is possible to disable the generation of
SIGPIPE for individual sockets (PR: kern/118626).

While here, s/insure/ensure/.
2008-06-29 17:17:14 +00:00
David Schultz
4110421449 We should also save and restore the MXCSR as on amd64, but detecting
whether the CPU supports SSE or not here is rather odious.
2008-06-28 17:58:06 +00:00
David Schultz
64c2e46650 Two FP-related setjmp/longjmp changes:
1. Save and restore the control part of the MXCSR in addition to the
   i387 control word to ensure that the two are consistent.

   Note that standards don't require longjmp to restore either control
   word, and none of Linux, MacOS X 10.3 and earlier, NetBSD, OpenBSD,
   or Solaris do it. However, it is historical FreeBSD behavior, and
   bde points out that it is needed to make longjmping out of a signal
   handler work properly, given the way FreeBSD clobbers the FPU state
   on signal handler entry.

2. Don't clobber the FPU exception flags in longjmp. C99 requires them
   to remain unchanged.
2008-06-28 17:55:43 +00:00
David Schultz
018b56d61f Fix a typo in the cosl() prototype. 2008-06-28 01:43:24 +00:00
Daniel Gerzo
aa2a33b4fa - add description of the MLINK error
PR:		docs/123019
MFC after:	3 days
2008-06-26 12:15:38 +00:00
Dag-Erling Smørgrav
c7dd6fa2c9 Some tests won't build at WARNS level 6 due to aliasing violations.
Add missing -I. so the tests will build when ${.OBJDIR} != ${.CURDIR}.
${.OBJDIR} does not need to be spelled out.
2008-06-26 11:58:26 +00:00
Dag-Erling Smørgrav
f9145f3547 Add regression test for CRC32 check. The test file has been modified to
include an invalid checksum for file2.

Approved by:	kientzle
2008-06-26 11:50:11 +00:00
Dag-Erling Smørgrav
c7d703c46a Implement CRC32 verification. Note that you have to read until EOF to
trigger the check.

Requested by:	ache
Approved by:	kientzle
2008-06-26 11:48:19 +00:00
Dag-Erling Smørgrav
e2157b51de Allow the tests to build without libdmalloc. 2008-06-26 10:53:05 +00:00
Daniel Gerzo
91bc389e54 Mark the section describing return values with an appropriate section flag.
PR:		docs/122818
MFC after:	3 days
2008-06-26 08:24:59 +00:00
Mike Makonnen
34a087543a Gcc barfs in glob.c when run with -O3. To fix this make g_strchr() work on
and return (const Char *) pointers instead of just (Char *) and get rid of
all the type casting.

PR:		kern/124334
2008-06-26 07:12:35 +00:00
Tim Kientzle
8b88e9591a Split out the reference zip file for ease of maintenance. 2008-06-26 04:48:42 +00:00
Ruslan Ermilov
042df2e2da Enable GCC stack protection (aka Propolice) for userland:
- It is opt-out for now so as to give it maximum testing, but it may be
  turned opt-in for stable branches depending on the consensus.  You
  can turn it off with WITHOUT_SSP.
- WITHOUT_SSP was previously used to disable the build of GNU libssp.
  It is harmless to steal the knob as SSP symbols have been provided
  by libc for a long time, GNU libssp should not have been much used.
- SSP is disabled in a few corners such as system bootstrap programs
  (sys/boot), process bootstrap code (rtld, csu) and SSP symbols themselves.
- It should be safe to use -fstack-protector-all to build world, however
  libc will be automatically downgraded to -fstack-protector because it
  breaks rtld otherwise.
- This option is unavailable on ia64.

Enable GCC stack protection (aka Propolice) for kernel:
- It is opt-out for now so as to give it maximum testing.
- Do not compile your kernel with -fstack-protector-all, it won't work.

Submitted by:	Jeremie Le Hen <jeremie@le-hen.org>
2008-06-25 21:33:28 +00:00
David Xu
7de1ecef2d Add two commands to _umtx_op system call to allow a simple mutex to be
locked and unlocked completely in userland. by locking and unlocking mutex
in userland, it reduces the total time a mutex is locked by a thread,
in some application code, a mutex only protects a small piece of code, the
code's execution time is less than a simple system call, if a lock contention
happens, however in current implemenation, the lock holder has to extend its
locking time and enter kernel to unlock it, the change avoids this disadvantage,
it first sets mutex to free state and then enters kernel and wake one waiter
up. This improves performance dramatically in some sysbench mutex tests.

Tested by: kris
Sounds great: jeff
2008-06-24 07:32:12 +00:00
Ed Schouten
c605eea952 Turn execvpe() into an internal libc routine.
Adding exevpe() has caused some ports to break. Even though execvpe() is
a useful routine, it does not conform to any standards.

This patch is a little bit different from the patch sent to the mailing
list. I forgot to remove execvpe from the Symbol.map (which does not
seem to miscompile libc, though).

Reviewed by:	davidxu
Approved by:	philip
2008-06-23 05:22:06 +00:00
Tim Kientzle
80a6a0328a Refactor one of the ISO extraction tests: Move the reference
file into a separate file (instead of embedding it in the C code)
and use later timestamps (timestamps too close to the Epoch fail
predictably on systems that lack timegm(), whose mktime() doesn't
support dates before the Epoch and which are running in timezones
with negative offsets from GMT).  The goal here is to test the ISO
extraction, not the local platform's time support.
2008-06-21 19:11:51 +00:00
Tim Kientzle
8a4ce0fb38 MfP4: Joerg Sonnenberg's extensions to the mtree support for more
complete quoting.  In particular, this handles escaped newlines
and common C-style escapes.
2008-06-21 19:06:37 +00:00
Tim Kientzle
be5eb9821c A security-check failure here should be ARCHIVE_FAILED (cannot continue this
operation) and not ARCHIVE_WARN, since we don't actually open the file.
Both bsdtar and bsdcpio will try to copy file contents after an ARCHIVE_WARN,
which will fail loudly.
2008-06-21 19:05:29 +00:00
Poul-Henning Kamp
20067a6892 Add Xr to getsockname(2) 2008-06-20 14:47:06 +00:00
David Schultz
f2dc0faad0 Implement fmodl.
Document fmodl and fix some errors in the fmod manpage.
2008-06-19 22:39:53 +00:00
David Xu
8e9a8a6c78 Process spawn attributes in POSIX document order. 2008-06-19 02:42:50 +00:00
Ed Schouten
e3580e9d91 Don't export the unused __use_pts() routine.
The __use_pts() routine was once probably used by libutil to determine
if we are using BSD or UNIX98 style PTY device names. It doesn't seem to
be used outside grantpt.c, which means we can make it static and remove
it from the Symbol.map.

Reviewed by:	cognet, kib
Approved by:	philip (mentor)
2008-06-17 14:05:03 +00:00
David Xu
fdbeb80a2b Style fix. 2008-06-17 08:23:45 +00:00
Ed Schouten
d1b2bd213c Change my email address to the one from the FreeBSD project.
Approved by:	philip (mentor, implicit), davidxu
2008-06-17 07:09:58 +00:00
David Xu
947aa542e9 Add POSIX routines called posix_spawn() and posix_spawnp(), which
can be used as replacements for exec/fork in a lot of cases. This
change also added execvpe() which allows environment variable
PATH to be used for searching executable file, it is used for
implementing posix_spawnp().

PR: standards/122051
2008-06-17 06:26:29 +00:00
Tony Finch
0cf1d3bf73 Make it clearer that privilege is needed to reduce as well as
increase group membership.
2008-06-16 14:50:21 +00:00
Tim Kientzle
d984a6e000 Rework the my_mbtowc_utf8() support function to fully match the mbtowc()
calling convention, not the mbrtowc() convention.
2008-06-15 11:28:56 +00:00
Tim Kientzle
4a9c863c87 Since wctomb() returns int, temporaries should be int, not size_t. 2008-06-15 11:15:12 +00:00
Tim Kientzle
936d273c3a A number of minor corrections to the support for external compression
programs:
  * Support platforms that have fork() but not vfork()
  * Don't write(), select(), or poll() against closed file descriptors
2008-06-15 10:45:57 +00:00
Tim Kientzle
dff2641a67 Be a little more careful about closing file descriptors that may not exist. 2008-06-15 10:43:59 +00:00
Tim Kientzle
c8390967f2 MfP4: test harness improvements. 2008-06-15 10:35:22 +00:00
Tim Kientzle
8d86da5715 Fix a bad cast. 2008-06-15 10:26:08 +00:00
Tim Kientzle
bfc29cb4d3 Fix reading TOC from zip archives with unsupported
compression.  We can't read the body, but we
shouldn't try to skip the body twice.
2008-06-15 05:15:53 +00:00
Tim Kientzle
693f6cf97c Mark hardlinks that lack any other interesting filetype information
with an 'h'.
2008-06-15 05:14:01 +00:00
Tim Kientzle
a64ca54afc Portability: We can get away with the older and better-supported
wctomb() here; we don't need wcrtomb().  In particular, this fixes
libarchive building on FreeBSD 4.
2008-06-15 05:12:47 +00:00
Tim Kientzle
8dd058b03d Portability: wchar_t is defined in stdlib.h on some systems. 2008-06-15 05:11:08 +00:00
Tim Kientzle
f9fe0a0abb archive.h is no longer constructed from archive.h.in,
so we can rename it and drop some no-longer-necessary
build magic from the Makefile.
2008-06-15 05:05:53 +00:00
Tim Kientzle
546c9253a3 Fix the new generic link resolver in libarchive to never match
dirs as hardlinks.  In particular, this fixes some recent ports
build failures.

Thanks to: Kris Kennaway
2008-06-15 04:31:43 +00:00
Ed Schouten
45792eb9b8 Turn sgtty into a binary-only compatibility interface.
sgtty was the original interface to configure terminal attributes on my
UNIX-like operating systems. It has been deprecated by the POSIX termios
interface, which is implemented in almost any modern system.

An advantage of turning this into a binary compatibility interface, is
that we can now eventually remove the COMPAT_43TTY switch from kernel
configurations. This removes many ioctl()'s from the TTY layer.

While there, increase the __FreeBSD_version, which may be useful for the
people working on the Ports tree.

Reviewed by:	kib
Approved by:	philip (mentor)
2008-06-14 10:42:18 +00:00
Andrew Thompson
cbb0775d1a Fix spelling.
PR:		docs/124561
Submitted by:	Sam Banks
2008-06-13 21:49:21 +00:00
Wojciech A. Koszek
98fbfcd632 Bring missing getsockopt(2) options: SO_LABEL SO_PEERLABEL SO_LISTENQLIMIT
SO_LISTENQLEN SO_LISTENINCQLEN to the manual page.

Till now those were only present in sys/socket.h file.

Reviewed by:	rwatson, gnn, keramida (with mdoc hat)
2008-06-12 22:58:35 +00:00
Jason Evans
b1c8b30f55 In the error path through base_alloc(), release base_mtx [1].
Fix bit vector initialization for run headers.

Submitted by:	[1] Mike Schuster <schuster@adobe.com>
2008-06-10 15:46:18 +00:00
Colin Percival
7254457b50 Don't store a pointer in "next" if we're never going to use it.
Fix typo in checking results of strchr.

Found by:	Coverity Prevent
2008-06-09 14:44:56 +00:00
David Xu
83a0758789 Make pthread_cleanup_push() and pthread_cleanup_pop() as a pair of macros,
use stack space to keep cleanup information, this eliminates overhead of
calling malloc() and free() in thread library.

Discussed on: thread@
2008-06-09 01:14:10 +00:00
Doug Rabson
cd7d66a21f Call the fcntl compatiblity wrapper from the thread library fcntl wrappers
so that they get the benefit of the (limited) forward ABI compatibility.

MFC after: 1 week
2008-05-30 14:47:42 +00:00
David Xu
1b3418b2dc Eliminate global mutex by using pthread_once's state field as
a semaphore.
2008-05-30 00:02:59 +00:00
David Xu
850f4d66cb - Reduce function call overhead for uncontended case.
- Remove unused flags MUTEX_FLAGS_* and their code.
- Check validity of the timeout parameter in mutex_self_lock().
2008-05-29 07:57:33 +00:00
Doug Rabson
2da0808aec Make fcntl() a weak symbol so that it can be overridden by thread libraries.
MFC after: 2 days
2008-05-27 14:03:32 +00:00
Tim Kientzle
40715dc446 Minor code hardening: Verify the final bytes of the string
are actually accessible before trying to use them.
2008-05-27 04:46:12 +00:00
Tim Kientzle
a212de8851 Until the old archive.h.in gets renamed to archive.h in the repository,
we still need some Makefile trickery to ensure archive.h is
correctly built for the test harness.
2008-05-27 04:12:17 +00:00
Tim Kientzle
fa07de5eeb MFp4: libarchive 2.5.4b. (Still 'b' until I get a bit more
feedback, but the 2.5 branch is shaping up nicely.)

In addition to many small bug fixes and code improvements:
 * Another iteration of versioning; I think I've got it right now.
 * Portability:  A lot of progress on Windows support (though I'm
   not committing all of the Windows support files to FreeBSD CVS)
 * Explicit tracking of MBS, WCS, and UTF-8 versions of strings
   in archive_entry; the archive_entry routines now correctly return
   NULL only when something is unset, setting NULL properly clears
   string values.  Most charset conversions have been pushed down to
   archive_string.
 * Better handling of charset conversion failure when writing or
   reading UTF-8 headers in pax archives
 * archive_entry_linkify() provides multiple strategies for
   hardlink matching to suit different format expectations
 * More accurate bzip2 format detection
 * Joerg Sonnenberger's extensive improvements to mtree support
 * Rough support for self-extracting ZIP archives.  Not an ideal
   approach, but it works for the archives I've tried.
 * New "sparsify" option in archive_write_disk converts blocks of nulls
   into seeks.
 * Better default behavior for the test harness; it now reports
   all failures by default instead of coredumping at the first one.
2008-05-26 17:00:24 +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
Robert Watson
e4372ceba0 Remove netatm from HEAD as it is not MPSAFE and relies on the now removed
NET_NEEDS_GIANT.  netatm has been disconnected from the build for ten
months in HEAD/RELENG_7.  Specifics:

- netatm include files
- netatm command line management tools
- libatm
- ATM parts in rescue and sysinstall
- sample configuration files and documents
- kernel support as a module or in NOTES
- netgraph wrapper nodes for netatm
- ctags data for netatm.
- netatm-specific device drivers.

MFC after:	3 weeks
Reviewed by:	bz
Discussed with:	bms, bz, harti
2008-05-25 22:11:40 +00:00
John Birrell
9445f413ee Relax the strict type check because gcc as distributed doesn't create
debug strtabs with type SHT_STRTAB. Although we could change FreeBSD's
gcc, we really need to play nicely with gcc as distributed by the FSF.
2008-05-23 07:35:36 +00:00
John Birrell
7d15d0a9c6 Change the alignment of the NOTE to match what gcc does. 2008-05-23 07:33:45 +00:00
John Birrell
c4607eb7ad Add the case for SHT_AMD64_UNWIND. 2008-05-23 07:32:19 +00:00
Colin Percival
b011a14a0a Check that lseek(2) succeeds and puts us where we expect. [1]
While we're here, fix a long-standing bug in the handling of write(2)
errors: The API changed from "return # of bytes written" to "return
status code" almost 4 years ago, so instead of returning (-1) we need
to return ARCHIVE_FATAL.

Found by:	Coverity Prevent [1]
2008-05-23 05:01:29 +00:00
Colin Percival
ca42a8e225 We only use the string "?rwxrwxrwx " once, so inline it rather than
declaring a variable which points to it.  Aside from eliminating a
line of code and one level of unnecessary indirection, this eliminates
a false positive in Coverity.
2008-05-23 04:57:28 +00:00
John Birrell
0cb540ce61 Hook libdwarf and libproc into the build. 2008-05-22 04:22:43 +00:00
John Birrell
6433849359 Add a BSD licensed DWARF library for use by the DTrace clients.
The API for this library is deliberately different to the GPL'd
libdwarf to avoid licensing problems.
2008-05-22 02:14:23 +00:00
John Birrell
2acd18806c Add the Makefile for the process library which was missed in the previous
commit.
2008-05-22 02:10:14 +00:00
John Birrell
2c633af461 Add a process library with some stubs that the DTrace client needs.
These will be fleshed out as part of the DTrace userland tracing
development.

For now, the kernel tracing part of DTrace requires minimal functionality
for this library.

The API for this library is deliberately different from the libproc in
OpenSolaris due to licensing restrictions.
2008-05-22 02:09:21 +00:00
Pawel Jakub Dawidek
9ac6b8ae23 Use 'dowrite' as an argument name instead of too general 'write'. 2008-05-20 11:45:05 +00:00
Colin Percival
ee99deabac Return ARCHIVE_FATAL if we can't allocate memory instead of going ahead and
dereferencing NULL.

Found by:	Coverity Prevent
2008-05-19 18:06:48 +00:00
Greg Lehey
b98d401185 Clarify that "ante meridiem" and "post meridiem" mean the same thing
as the more commonly used "a.m." and "p.m.".

Tripped over by:  Callum Gibson.

MFC after:  2 weeks
2008-05-16 04:33:04 +00:00
Doug Rabson
c24d228096 Add new heimdal-1.1 library. 2008-05-15 15:28:18 +00:00
Jason Evans
2e78350530 Clean up cpp logic and comments. 2008-05-14 18:33:13 +00:00
Warner Losh
13d2e92b70 Commit missing mips libthr support that I thought I'd committed earlier 2008-05-11 05:54:52 +00:00
Antoine Brodin
27522528ea Remove useless call to getdtablesize(2) in fdopen(3) and its useless
variable nofile.

PR:		123109
Submitted by:	Christoph Mallon
Approved by:	rwatson (mentor)
MFC after:	1 month
2008-05-10 18:39:20 +00:00
Christian Brueffer
2e462358ed Misc mdoc improvements and a typo fix. 2008-05-10 07:31:34 +00:00
Julian Elischer
4ba9fdc4a6 Add setfib.2 to the list of man pages to add 2008-05-09 23:09:56 +00:00
Julian Elischer
23c3fd9e62 setfib.2 got left out of the last commit 2008-05-09 23:08:40 +00:00
Julian Elischer
65cb6b6834 Add code to allow the system to handle multiple routing tables.
This particular implementation is designed to be fully backwards compatible
and to be MFC-able to 7.x (and 6.x)

Currently the only protocol that can make use of the multiple tables is IPv4
Similar functionality exists in OpenBSD and Linux.

From my notes:

-----

One thing where FreeBSD has been falling behind, and which by chance I
have some time to work on is "policy based routing", which allows
different
packet streams to be routed by more than just the destination address.

Constraints:
------------

I want to make some form of this available in the 6.x tree
(and by extension 7.x) , but FreeBSD in general needs it so I might as
well do it in -current and back port the portions I need.

One of the ways that this can be done is to have the ability to
instantiate multiple kernel routing tables (which I will now
refer to as "Forwarding Information Bases" or "FIBs" for political
correctness reasons). Which FIB a particular packet uses to make
the next hop decision can be decided by a number of mechanisms.
The policies these mechanisms implement are the "Policies" referred
to in "Policy based routing".

One of the constraints I have if I try to back port this work to
6.x is that it must be implemented as a EXTENSION to the existing
ABIs in 6.x so that third party applications do not need to be
recompiled in timespan of the branch.

This first version will not have some of the bells and whistles that
will come with later versions. It will, for example, be limited to 16
tables in the first commit.
Implementation method, Compatible version. (part 1)
-------------------------------
For this reason I have implemented a "sufficient subset" of a
multiple routing table solution in Perforce, and back-ported it
to 6.x. (also in Perforce though not  always caught up with what I
have done in -current/P4). The subset allows a number of FIBs
to be defined at compile time (8 is sufficient for my purposes in 6.x)
and implements the changes needed to allow IPV4 to use them. I have not
done the changes for ipv6 simply because I do not need it, and I do not
have enough knowledge of ipv6 (e.g. neighbor discovery) needed to do it.

Other protocol families are left untouched and should there be
users with proprietary protocol families, they should continue to work
and be oblivious to the existence of the extra FIBs.

To understand how this is done, one must know that the current FIB
code starts everything off with a single dimensional array of
pointers to FIB head structures (One per protocol family), each of
which in turn points to the trie of routes available to that family.

The basic change in the ABI compatible version of the change is to
extent that array to be a 2 dimensional array, so that
instead of protocol family X looking at rt_tables[X] for the
table it needs, it looks at rt_tables[Y][X] when for all
protocol families except ipv4 Y is always 0.
Code that is unaware of the change always just sees the first row
of the table, which of course looks just like the one dimensional
array that existed before.

The entry points rtrequest(), rtalloc(), rtalloc1(), rtalloc_ign()
are all maintained, but refer only to the first row of the array,
so that existing callers in proprietary protocols can continue to
do the "right thing".
Some new entry points are added, for the exclusive use of ipv4 code
called in_rtrequest(), in_rtalloc(), in_rtalloc1() and in_rtalloc_ign(),
which have an extra argument which refers the code to the correct row.

In addition, there are some new entry points (currently called
rtalloc_fib() and friends) that check the Address family being
looked up and call either rtalloc() (and friends) if the protocol
is not IPv4 forcing the action to row 0 or to the appropriate row
if it IS IPv4 (and that info is available). These are for calling
from code that is not specific to any particular protocol. The way
these are implemented would change in the non ABI preserving code
to be added later.

One feature of the first version of the code is that for ipv4,
the interface routes show up automatically on all the FIBs, so
that no matter what FIB you select you always have the basic
direct attached hosts available to you. (rtinit() does this
automatically).

You CAN delete an interface route from one FIB should you want
to but by default it's there. ARP information is also available
in each FIB. It's assumed that the same machine would have the
same MAC address, regardless of which FIB you are using to get
to it.

This brings us as to how the correct FIB is selected for an outgoing
IPV4 packet.

Firstly, all packets have a FIB associated with them. if nothing
has been done to change it, it will be FIB 0. The FIB is changed
in the following ways.

Packets fall into one of a number of classes.

1/ locally generated packets, coming from a socket/PCB.
   Such packets select a FIB from a number associated with the
   socket/PCB. This in turn is inherited from the process,
   but can be changed by a socket option. The process in turn
   inherits it on fork. I have written a utility call setfib
   that acts a bit like nice..

       setfib -3 ping target.example.com # will use fib 3 for ping.

   It is an obvious extension to make it a property of a jail
   but I have not done so. It can be achieved by combining the setfib and
   jail commands.

2/ packets received on an interface for forwarding.
   By default these packets would use table 0,
   (or possibly a number settable in a sysctl(not yet)).
   but prior to routing the firewall can inspect them (see below).
   (possibly in the future you may be able to associate a FIB
   with packets received on an interface..  An ifconfig arg, but not yet.)

3/ packets inspected by a packet classifier, which can arbitrarily
   associate a fib with it on a packet by packet basis.
   A fib assigned to a packet by a packet classifier
   (such as ipfw) would over-ride a fib associated by
   a more default source. (such as cases 1 or 2).

4/ a tcp listen socket associated with a fib will generate
   accept sockets that are associated with that same fib.

5/ Packets generated in response to some other packet (e.g. reset
   or icmp packets). These should use the FIB associated with the
   packet being reponded to.

6/ Packets generated during encapsulation.
   gif, tun and other tunnel interfaces will encapsulate using the FIB
   that was in effect withthe proces that set up the tunnel.
   thus setfib 1 ifconfig gif0 [tunnel instructions]
   will set the fib for the tunnel to use to be fib 1.

Routing messages would be associated with their
process, and thus select one FIB or another.
messages from the kernel would be associated with the fib they
refer to and would only be received by a routing socket associated
with that fib. (not yet implemented)

In addition Netstat has been edited to be able to cope with the
fact that the array is now 2 dimensional. (It looks in system
memory using libkvm (!)). Old versions of netstat see only the first FIB.

In addition two sysctls are added to give:
a) the number of FIBs compiled in (active)
b) the default FIB of the calling process.

Early testing experience:
-------------------------

Basically our (IronPort's) appliance does this functionality already
using ipfw fwd but that method has some drawbacks.

For example,
It can't fully simulate a routing table because it can't influence the
socket's choice of local address when a connect() is done.

Testing during the generating of these changes has been
remarkably smooth so far. Multiple tables have co-existed
with no notable side effects, and packets have been routes
accordingly.

ipfw has grown 2 new keywords:

setfib N ip from anay to any
count ip from any to any fib N

In pf there seems to be a requirement to be able to give symbolic names to the
fibs but I do not have that capacity. I am not sure if it is required.

SCTP has interestingly enough built in support for this, called VRFs
in Cisco parlance. it will be interesting to see how that handles it
when it suddenly actually does something.

Where to next:
--------------------

After committing the ABI compatible version and MFCing it, I'd
like to proceed in a forward direction in -current. this will
result in some roto-tilling in the routing code.

Firstly: the current code's idea of having a separate tree per
protocol family, all of the same format, and pointed to by the
1 dimensional array is a bit silly. Especially when one considers that
there is code that makes assumptions about every protocol having the
same internal structures there. Some protocols don't WANT that
sort of structure. (for example the whole idea of a netmask is foreign
to appletalk). This needs to be made opaque to the external code.

My suggested first change is to add routing method pointers to the
'domain' structure, along with information pointing the data.
instead of having an array of pointers to uniform structures,
there would be an array pointing to the 'domain' structures
for each protocol address domain (protocol family),
and the methods this reached would be called. The methods would have
an argument that gives FIB number, but the protocol would be free
to ignore it.

When the ABI can be changed it raises the possibilty of the
addition of a fib entry into the "struct route". Currently,
the structure contains the sockaddr of the desination, and the resulting
fib entry. To make this work fully, one could add a fib number
so that given an address and a fib, one can find the third element, the
fib entry.

Interaction with the ARP layer/ LL layer would need to be
revisited as well. Qing Li has been working on this already.

This work was sponsored by Ironport Systems/Cisco

PR:
Reviewed by:	several including rwatson, bz and mlair (parts each)
Approved by:
Obtained from:	Ironport systems/Cisco
MFC after:
Security:

PR:
Submitted by:
Reviewed by:
Approved by:
Obtained from:
MFC after:
Security:
2008-05-09 23:00:21 +00:00
Rong-En Fan
f5cf48b83e - Update for ncurses 5.6-20080509 2008-05-09 02:28:52 +00:00
John Baldwin
128b5d55e5 Don't set the _file member of the FILE when opening a FTP connection.
Nothing in libftpio uses _file, and the only consumer in the tree
(sysinstall) doesn't invoke fileno() on the FILE.

MFC after:	2 months
2008-05-08 20:05:30 +00:00
Coleman Kane
c4ca06b9b3 Update the lib/expat tree for the new v2.0.1 expat import. The bsdxml.h
header is now in two parts: bsdxml.h and bsdxml_external.h, representing
the expat.h and expat_external.h headers. Updated the info on the man
page as well. Also, fixed a type-error in a printf in
sbin/ifconfig/regdomain.c that would cause a compiler warning.

Approved by:	sam, phk
2008-05-08 14:01:42 +00:00
Alexander Kabaev
5e29db42b9 Keep versions on a dependency chain to exclude even remote possiblity
of private version ever getting index 2.
2008-05-07 15:39:34 +00:00
Doug Rabson
33f1219925 Fix conflicts after heimdal-1.1 import and add build infrastructure. Import
all non-style changes made by heimdal to our own libgssapi.
2008-05-07 13:53:12 +00:00
David Xu
cf181aee60 Remove libc_r's remnant code. 2008-05-06 07:27:11 +00:00
Daniel Eischen
f3e9983ea6 Add a comment stating not to bump the FBSDprivate version.
Don't inherit the public namespace from the private namespace.
2008-05-06 01:41:55 +00:00
John Baldwin
a551ce1205 Revert back to accessing FILE internals directly.
(Sorry, forgot to commit this earlier.)
2008-05-05 19:38:25 +00:00
John Baldwin
143b946188 Retire the __fgetcookie(), __fgetpendout(), and __fsetfileno() accessors
as we aren't hiding FILE's internals anymore.
2008-05-05 16:14:02 +00:00
John Baldwin
19e03ca803 Expose FILE's internals to the world again in all their glory. Restore
all the previous inline optimizations as well.  FILE is back to using
__mbstate_t, struct pthread *, and struct pthread_mutex *.
2008-05-05 16:03:52 +00:00
Konstantin Belousov
90c68c1799 Do not read away the target directory entry when encountering deleted
files after a seekdir().

The seekdir shall set the position for the next readdir operation.
When the _readdir_unlocked() encounters deleted entry, dd_loc is
already advanced. Continuing the loop leads to premature read of
the target entry.

Submitted by:	Marc Balmer <mbalmer at openbsd org>
Obtained from:	OpenBSD
MFC after:	2 weeks
2008-05-05 14:05:23 +00:00
Oleksandr Tymoshenko
228d330b1a Add MIPS support to libdisk
Approved by:	cognet (mentor)
2008-05-04 22:24:40 +00:00
Marcel Moolenaar
201e72e716 Add __fgetcookie(), __fgetpendout() and __fsetfileno() to the private
name space.
2008-05-04 04:11:01 +00:00
Marcel Moolenaar
0aca787a7b Unbreak build: gnu sort has been configured to grope inside struct
__sFILE. It's opaque now, so add a function that returns the pending
output bytes.

Pointy hat: jhb
2008-05-03 23:36:00 +00:00
Oleksandr Tymoshenko
41ea62f986 Symbol.map is handled by cpp, so use C-style comments
Approved by:	cognet (mentor)
2008-05-03 21:16:08 +00:00
Marcel Moolenaar
430f2c8721 Unbreak build: libftpio gropes inside struct __sFILE. Implement
accessor functions for its benefit now thaat FILE is opaque.
I'm sure there's a better way. I leave that for people to work
on in a src tree that isn't broken.

Pointy hat: jhb
2008-05-03 20:09:44 +00:00
Jason Evans
4788234366 Fix a comment. 2008-05-03 17:49:16 +00:00
Oleksandr Tymoshenko
32d7197a6d Bring C runtime bits for FreeBSD/mips from p4 mips2-jnpr branch.
Approved by:	cognet (mentor)
2008-05-03 11:16:32 +00:00
John Baldwin
c17bf9a9a5 Next round of stdio changes: Remove all inlining of stdio operations and
move the definition of the type backing FILE (struct __sFILE) into an
internal header.
- Remove macros to inline certain operations from stdio.h.  Applications
  will now always call the functions instead.
- Move the various foo_unlocked() functions from unlocked.c into foo.c.
  This lets some of the inlining macros (e.g. __sfeof()) move into
  foo.c.
- Update a few comments.
- struct __sFILE can now go back to using mbstate_t, pthread_t, and
  pthread_mutex_t instead of knowing about their private, backing types.

MFC after:	1 month
Reviewed by:	kan
2008-05-02 15:25:07 +00:00
John Baldwin
ab9306707a Include libc_private.h for the declaration of __isthreaded instead of
relying on namespace pollution in stdio.h.

MFC after:	3 days
2008-05-02 14:51:22 +00:00
Jason Evans
9007109030 Add a separate tree to track arena chunks that contain dirty pages.
This substantially improves worst case allocation performance, since
O(lg n) tree search can be used instead of O(n) tree iteration.

Use rb_wrap() instead of directly calling rb_*() macros.
2008-05-01 17:25:55 +00:00
Jason Evans
21162484ae Add rb_wrap(), which creates C function wrappers for most rb_*()
macros.

Add rb_foreach_next() and rb_foreach_reverse_prev(), which make it
possible to re-synchronize tree iteration after the tree has been
modified.

Rename rb_tree_new() to rb_new().
2008-05-01 17:24:37 +00:00
Doug Rabson
e1a0d9eff3 When receiving delegated credentials, initialise our cred's linked list.
Add a bit more sanity checking for GSS-API mechanisms that claim to have
delegated creds but don't actually return a cred handle.

MFC after: 2 weeks
2008-04-30 11:29:22 +00:00
Doug Rabson
8294c41328 Use global implementation of _gss_oid_equal.
MFC after: 2 weeks
2008-04-30 11:27:15 +00:00
Doug Rabson
733704ea52 Allow null oids in _gss_oid_equal().
MFC after: 2 weeks
2008-04-30 11:25:34 +00:00
Oleksandr Tymoshenko
dfe2d491c0 o Add MIPS to the list of architectures with defined TLS_TCB_ALIGN
o Stick with TLS Variant II for MIPS for the moment.

  Approved by:	imp
2008-04-29 23:15:23 +00:00
Oleksandr Tymoshenko
00fb5362ba Set QUANTUM_2POW_MIN and SIZEOF_PTR_2POW parameters for MIPS
Approved by: imp
2008-04-29 22:56:05 +00:00
Ruslan Ermilov
967f568996 _setjmp.o was missing a dependency on "machine". 2008-04-29 17:42:42 +00:00
Ruslan Ermilov
692411eece Don't forget to clean the "machine" symlink on amd64, otherwise bad
things may happen.

Reported by:	phk
MFC after:	3 days
2008-04-29 17:37:01 +00:00
David Xu
8d6a11a070 Use UMTX_OP_WAIT_UINT_PRIVATE and UMTX_OP_WAKE_PRIVATE to save
time in kernel(avoid VM lookup).
2008-04-29 03:58:18 +00:00
Jason Evans
e3085308be Check for integer overflow before calling sbrk(2), since it uses a
signed increment argument, but the size is an unsigned integer.
2008-04-29 01:32:42 +00:00
Robert Watson
7ee52b008a Correct minor typos in SCTP man pages.
MFC after:	3 days
2008-04-28 16:57:56 +00:00
Marcel Moolenaar
b0735d8073 Add support files for compiling with soft-float. This has been
copied from ARM and modified to warrant the duplication. Oh,
and to make it work for PowerPC :-)
2008-04-27 18:34:34 +00:00
Kris Kennaway
dd77f9f7f2 Increase the default MUTEX_ADAPTIVE_SPINS to 2000, after further
testing it turns out 200 was too short to give good adaptive
performance.

Reviewed by:   jeff
MFC after:     1 week
2008-04-26 13:19:07 +00:00
Warner Losh
62c97aefc5 Add mips support to libm, from mips2-jnpr perforce branch. 2008-04-26 12:20:29 +00:00
Warner Losh
416e6cfbf0 Bring in mips threads support from perforce mips2-jnpr branch. 2008-04-26 12:17:57 +00:00
Warner Losh
4ce261061f Add mips support libc from the mips2-jnpr branch of perforce. 2008-04-26 12:08:02 +00:00
Sean Farley
4bc1fa7662 Have the man page catch up with the namespace pollution cleanup that
occurred between 2001-2003.  Thanks to bde for the history lesson[1]
concerning sys/types.h and the many system calls that at one time
(pre-2001) were required by POSIX to include it.

1. http://lists.freebsd.org/pipermail/freebsd-arch/2008-April/008126.html

MFC after:	3 days
2008-04-26 02:33:53 +00:00
Ruslan Ermilov
eff93c8073 Stricter check for integer overflow. 2008-04-24 07:49:00 +00:00
Marcel Moolenaar
236ee032b5 Add support for gpart:
o  Correct for gpart's 1-based index, versus 0-based index used by
   legacy slicers.
o  Parse and understand the xs and xt parameters.
2008-04-24 00:11:15 +00:00
Xin LI
d0aa4fd3ca Avoid various shadowed variables. libthr is now almost WARNS=4 clean except
for some const dequalifiers that needs more careful investigation.

Ok'ed by:	davidxu
2008-04-23 21:06:51 +00:00
Jason Evans
e5bf0d71c9 Implement red-black trees without using parent pointers, and store the
color bit in the least significant bit of the right child pointer, in
order to reduce red-black tree linkage overhead by ~2X as compared to
sys/tree.h.

Use the new red-black tree implementation in malloc, which drops
memory usage by ~0.5 or ~1%, for 32- and 64-bit systems, respectively.
2008-04-23 16:09:18 +00:00
Marcel Moolenaar
727b08eb66 Correct an off-by-1 for GPART. The literal partition type (i.e.
the actual UUID) is prefixed by '!' to distinguish them from
well-known aliases.

MFC after: 3 days
2008-04-23 03:00:26 +00:00
Sean Farley
0b5e889911 Add four utility functions related to struct grp processing modeled in-part
after similar calls related to struct pwd in libutil/pw_util.c:
  - gr_equal()
    Perform a deep comparison of two struct grp's.  It does a thorough, yet
    unoptimized comparison of all the members regardless of order.

  - gr_make()
    Create a string (see group(5)) from a struct grp.

  - gr_dup()
    Duplicate a struct grp.  Returns a value that is a single contiguous
    block of memory.

  - gr_scan()
    Create a struct grp from a string (as produced by gr_make()).

MFC after:	3 weeks
2008-04-23 00:49:13 +00:00
John Baldwin
bc669a8c33 Fix a leak in the recent fixes for file descriptors > SHRT_MAX. In the
case of a file descriptor we can't handle, clear the FILE structure's flags
so it can be reused.

MFC after:	1 week
Reported by:	otto @ OpenBSD
2008-04-22 17:03:32 +00:00
David Xu
fb2641d9b1 Use native rwlock. 2008-04-22 06:44:11 +00:00
Antoine Brodin
88ff5136d1 Document that you must include <sys/param.h> before <sys/cpuset.h>.
Approved by:	rwatson (mentor)
2008-04-20 15:51:56 +00:00
Ruslan Ermilov
5b30d6ca77 Don't forget to free() currency_symbol and asciivalue when multiple
conversion specifiers for them are present.

Submitted by:	Maxim Dounin <mdounin@mdounin.ru>
Obtained from:	NetBSD (partially)
MFC after:	3 days
2008-04-19 07:22:58 +00:00
Ruslan Ermilov
3890416f9c Better strfmon(3) conversion specifiers sanity checking.
There were no checks for left and right precisions at all, and
a check for field width had integer overflow bug.

Reported by:	Maksymilian Arciemowicz
Security:	http://securityreason.com/achievement_securityalert/53
Submitted by:	Maxim Dounin <mdounin@mdounin.ru>
MFC after:	3 days
2008-04-19 07:18:22 +00:00
John Baldwin
1e98f88776 Next stage of stdio cleanup: Retire __sFILEX and merge the fields back into
__sFILE.  This was supposed to be done in 6.0.  Some notes:
- Where possible I restored the various lines to their pre-__sFILEX state.
- Retire INITEXTRA() and just initialize the wchar bits (orientation and
  mbstate) explicitly instead.  The various places that used INITEXTRA
  didn't need the locking fields or _up initialized.  (Some places needed
  _up to exist and not be off the end of a NULL or garbage pointer, but
  they didn't require it to be initialized to a specific value.)
- For now, stdio.h "knows" that pthread_t is a 'struct pthread *' to
  avoid namespace pollution of including all the pthread types in stdio.h.
  Once we remove all the inlines and make __sFILE private it can go back
  to using pthread_t, etc.
- This does not remove any of the inlines currently and does not change
  any of the public ABI of 'FILE'.

MFC after:	1 month
Reviewed by:	peter
2008-04-17 22:17:54 +00:00
Xin LI
6fda52ba75 Implement fdopendir(3) by splitting __opendir2() into two parts, the upper part
deals with the usual __opendir2() calls, and the rest part with an interface
translator to expose fdopendir(3) functionality.  Manual page was obtained from
kib@'s work for *at(2) system calls.
2008-04-16 18:59:36 +00:00
Xin LI
f6386c2536 Style fixes to opendir.c:
- Use /*- for copyright block;
 - ANSIfy.
2008-04-16 18:40:52 +00:00
Ruslan Ermilov
96e5e69a4a Sort MAN and MLINKS. 2008-04-16 14:57:40 +00:00
Ruslan Ermilov
878f6086e3 Connect newly added manpages to the build.
Submitted by:	kib
2008-04-16 14:44:43 +00:00
Konstantin Belousov
a141af6930 Man pages for the openat(2), fexecve(2) and related syscalls.
Reviewed by:	ru
2008-04-16 13:03:12 +00:00
Warner Losh
abe458f391 Doh! Extra mips in the path. Remove these and wait until tomorrow
when I have more brain cells to try again.
2008-04-16 05:11:25 +00:00
Warner Losh
6afe466807 Turns out the machine/asm.h isn't needed here, since SYS.h already
included it.
2008-04-16 05:08:27 +00:00
Warner Losh
69e1fc6e80 FreeBSD/mips libc support. Merged from perforce mips2-jnpr branch. 2008-04-16 05:06:11 +00:00
David Xu
6d9517bc9f _vfork is not in libthr, remove the reference. 2008-04-16 03:19:11 +00:00
Colin Percival
fc2841a92f Fix one-byte buffer overflow: NUL gets written to the buffer, but isn't
counted in the width specification in scanf.

This is not a security problem, since this function is only used to
parse a user's configuration file.

Submitted by:	Joerg Sonnenberger
Obtained from:	dragonflybsd
MFC after:	1 week
2008-04-15 23:29:51 +00:00
David Xu
d61f3de656 Implement POSIX function tcgetsid() which returns session id.
PR: stand/107561
2008-04-15 08:33:32 +00:00
David Xu
fa4b421a7a don't include pthread_np.h, it is not used. 2008-04-14 08:08:40 +00:00
Xin LI
92226c92f3 Use calloc() instaed of zeroing memory ourselves. 2008-04-13 08:05:08 +00:00
David Schultz
77fab5a8eb Unbreak the build for arm and powerpc.
Pointy hat to yours truly.
2008-04-12 14:53:52 +00:00
David Schultz
e058c00c40 Updates for changes in the way printf() handles hex floating point
numbers.
2008-04-12 03:11:56 +00:00
David Schultz
76303a9735 Make several changes to the way printf handles hex floating point (%a):
1. Previously, printing the number 1.0 could produce 0x1p+0, 0x2p-1,
   0x4p-2, or 0x8p-3, depending on what happened to be convenient. This
   meant that printing a value as a double and printing the same value
   as a long double could produce different (but equivalent) results.
   The change is to always make the leading digit a 1, unless the
   number is 0. This solves the aforementioned problem and has
   several other advantages.

2. Use the FPU to do rounding. This is far simpler and more portable
   than manipulating the bits, and it fixes an obsure round-to-even
   bug. It also raises the exceptions now required by IEEE 754R.
   The drawbacks are that it is usually slightly slower, and it makes
   printf less effective as a debugging tool when the FPU is hosed
   (e.g., due to a buggy softfloat implementation).

3. On i386, twiddle the rounding precision so that (2) works properly
   for long doubles.

4. Make several simplifications that are now possible due to (2).

5. Split __hldtoa() into a separate file.

Thanks to remko for access to a sparc64 box for testing.
2008-04-12 03:11:36 +00:00
David Schultz
10a465e525 Fix some bugs that caused sparc64's quad precision sqrt to get
the wrong answer for virtually all inputs.

Thanks to remko for access to a sparc64 box for testing.
2008-04-12 03:10:13 +00:00
David Schultz
a9d5aa6aeb Make the software emulator for long doubles set the FPU exception
flags appropriately. The next step is to make it raise a SIGFPE if
any exceptions are unmasked.

Thanks to remko for access to a sparc64 box for testing.
2008-04-12 03:09:51 +00:00
Xin LI
82e45205c8 Add memrchr(3).
Obtained from:	OpenBSD
2008-04-10 00:12:44 +00:00
Daniel Eischen
fc9299dd1b Move the cpuset functions from FBSD_1.0 to FBSD_1.1. All symbols added
to 8.0 belong in the FBSD_1.1 symbol namespace.
2008-04-07 13:53:51 +00:00
Doug Rabson
472f4537e6 On i386, don't try to do network-type stuff if the device name is'nt pxeN. 2008-04-05 15:03:29 +00:00
Doug Rabson
aea15cbc62 Add some compatibility code so that software which is built to use the new
struct flock with l_sysid member can work properly on an an old kernel which
doesn't support l_sysid.

Sponsored by:	Isilon Systems
2008-04-04 09:43:03 +00:00
Warner Losh
22e5baf782 Minor style(9) nit: move to using ANSI definition of functions. 2008-04-03 20:36:44 +00:00
Ruslan Ermilov
c3ee8ebcbc Fix descriptions of "struct msqid_ds and "struct ipc_perm" to match
harsh reality.
2008-04-03 16:21:43 +00:00
David Schultz
92a1a6e169 Fix some corner cases:
- fma(x, y, z) returns z, not NaN, if z is infinite, x and y are finite,
  x*y overflows, and x*y and z have opposite signs.
- fma(x, y, z) doesn't generate an overflow, underflow, or inexact exception
  if z is NaN or infinite, as per IEEE 754R.
- If the rounding mode is set to FE_DOWNWARD, fma(1.0, 0.0, -0.0) is -0.0,
  not +0.0.
2008-04-03 06:14:51 +00:00
David Xu
caad30a422 put THR_CRITICAL_LEAVE into do .. while statement. 2008-04-03 02:47:35 +00:00
Kevin Lo
6cec2e4b55 style(9) cleanup 2008-04-03 02:41:54 +00:00
David Xu
a6cba9400a add __hidden suffix to _umtx_op_err, this eliminates PLT. 2008-04-03 02:13:51 +00:00
David Xu
7abb97dcd8 Non-portable functions are in pthread_np.h, fix compiling problem. 2008-04-02 11:41:12 +00:00
David Xu
7a30bcf04b Add pthread_setaffinity_np and pthread_getaffinity_np to libc namespace. 2008-04-02 08:53:18 +00:00
David Xu
8b873a2328 Remove unused functions. 2008-04-02 08:33:42 +00:00
David Xu
d6e0eb0a48 Replace function _umtx_op with _umtx_op_err, the later function directly
returns errno, because errno can be mucked by user's signal handler and
most of pthread api heavily depends on errno to be correct, this change
should improve stability of the thread library.
2008-04-02 07:41:25 +00:00
David Xu
8bf1a48cb3 Replace userland rwlock with a pure kernel based rwlock, the new
implementation does not switch pointers when it resumes waiters.

Asked by: jeff
2008-04-02 04:32:31 +00:00
David Xu
ad4a96ba13 Normally, we are often reading local time rather than setting time zone,
replace mutex with rwlock, this should eliminate lock contention in
most cases.
2008-04-01 06:56:11 +00:00
David Xu
18967c1918 Restore normal pthread_cond_signal path to avoid some obscure races. 2008-04-01 06:23:08 +00:00
David Xu
f5bc4f9930 return EAGAIN early rather than running bunch of code later, micro optimize
static branch prediction.
2008-04-01 00:21:49 +00:00
David Schultz
8087c515ab Remove a (bogus) remnant of debugging this on sparc64. 2008-03-31 13:11:45 +00:00
Konstantin Belousov
ba2983e5b3 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
2008-03-31 12:14:04 +00:00
Tim Kientzle
4b7d286a5b Include an extra byte for the trailing NUL. <sigh>
Pointy hat: Me
2008-03-31 06:24:39 +00:00
David Xu
5ab512bb8e Rewrite rwlock to user atomic operations to change rwlock state, this
eliminates internal mutex lock contention when most rwlock operations
are read.

Orignal patch provided by: jeff
2008-03-31 02:55:49 +00:00
David Schultz
074fb64d9a Add assembly versions of remquol() and remainderl(). 2008-03-30 21:21:53 +00:00
David Schultz
c7392feecc Hook remquol() and remainderl() up to the build. 2008-03-30 20:48:02 +00:00
David Schultz
a2e5f27559 Implement remainderl() as a wrapper around remquol(). The extra work
remquol() performs to compute the quotient is negligible.
2008-03-30 20:47:42 +00:00
David Schultz
cef56f9d6d Implement remquol() based on remquo(). 2008-03-30 20:47:26 +00:00
David Schultz
511dd36b32 Implement csqrtl(). 2008-03-30 20:07:15 +00:00
David Schultz
84c1c0a1ca Hook hypotl() and cabsl() up to the build. 2008-03-30 20:03:46 +00:00
David Schultz
01a13522ad Document hypotl().
Submitted by:	Steve Kargl <sgk@troutmask.apl.washington.edu>
2008-03-30 20:03:29 +00:00
David Schultz
a641fc76eb Alias hypotl() and cabsl() for platforms where long double is the same
as double.
2008-03-30 20:03:06 +00:00
David Schultz
2264157a42 Implement cabsl() in terms of hypotl().
Submitted by:	Steve Kargl <sgk@troutmask.apl.washington.edu>
2008-03-30 20:02:03 +00:00
David Schultz
d23166b015 Implement hypotl(). This is bde's conversion of fdlibm hypot(), with minor
fixes for ld128 by me.
2008-03-30 20:01:50 +00:00
Bruce Evans
42ee187c3c Use fabs[f]() instead of bit fiddling for setting absolute values.
This makes little difference in float precision, but in double
precision gives a speedup of about 30% on amd64 (A64 CPU) and i386
(A64).  This depends on fabs[f]() being inline and efficient.  The
bit fiddling (or any use of SET_HIGH_WORD(), which libm does too
much because it was best on old 32-bit machines) always causes
packing overheads and sometimes causes stalls in the packing, since
it operates on only part of a variable in the double precision case.
It apparently did cause stalls in a critical path here.
2008-03-30 18:07:12 +00:00
Bruce Evans
c0c7ddd3a8 Use the expression fabs(x+0.0)-fabs(y+0.0) instead of
fabs(x+0.0)+fabs(y+0.0) when mixing NaNs.  This improves
consistency of the result by making it harder for the compiler to reorder
the operands.  (FP addition is not necessarily commutative because the
order of operands makes a difference on some machines iff the operands are
both NaNs.)
2008-03-30 17:28:27 +00:00
Bruce Evans
f94997c8d7 Fix a missing mask in a hi+lo decomposition. Thus bug made the extra
precision in software useless, so hypotf() had some errors in the 1-2
ulp range unless there is extra precision in hardware (as happens on
i386).
2008-03-30 17:17:42 +00:00
Doug Rabson
ecc03b80f1 Don't call xdrrec_skiprecord in the non-blocking case. If
__xdrrec_getrec has returned TRUE, then we have a complete request in
the buffer - calling xdrrec_skiprecord is not necessary. In particular,
if there is another record already buffered on the stream,
xdrrec_skiprecord will discard both this request and the next
one, causing the call to xdr_callmsg to fail and the stream to be
closed.

Sponsored by:	Isilon Systems
2008-03-30 09:36:17 +00:00
Doug Rabson
7ea7cc4bab Don't assume that there is readable data on the stream after the
fragment header.
2008-03-30 09:35:04 +00:00
Ruslan Ermilov
dbdb679c6f Remove options MK_LIBKSE and DEFAULT_THREAD_LIB now that we no longer
build libkse.  This should fix WITHOUT_LIBTHR builds as a side effect.
2008-03-29 17:44:40 +00:00
David Schultz
a1af0d70da Include math.h for the fmaf() prototype. 2008-03-29 16:38:29 +00:00
David Schultz
ee0730e61e Fix some rather obscene code that has ambiguous if...if...else...
constructs in it.
2008-03-29 16:37:59 +00:00
David Schultz
838200ff96 Document modff() and modfl(). Technically, modff() and modfl()
live in libm, while modf() lives in libc due to historical
mistakes. I'm claiming in the manpage that they all live in libm,
since programmers should not rely on the mistake.
2008-03-29 16:19:35 +00:00
Jeff Roberson
d1317e00b8 - Add a man page for cpuset_getaffinity() and cpuset_setaffinity() and
hook it up to the build.

Reviewed by:	brueffer (skeleton and formatting assistance)
2008-03-29 10:26:29 +00:00
Jeff Roberson
329356f9f2 - Add a man page for cpuset(), cpuset_setid(), and cpuset_getid() and hook
it up to the build.

Reviewed by:	brueffer (skeleton and formatting assistance)
2008-03-29 10:06:30 +00:00
Paul Saab
6e7534b8c8 Add support to mincore for detecting whether a page is part of a
"super" page or not.

Reviewed by:	alc, ups
2008-03-28 04:29:27 +00:00
Ruslan Ermilov
cbdcc7cb91 Removed no longer existing CTL_MACHDEP defines.
Inspired by:	phk
2008-03-26 23:02:17 +00:00
Doug Rabson
dfdcada31e Add the new kernel-mode NFS Lock Manager. To use it instead of the
user-mode lock manager, build a kernel with the NFSLOCKD option and
add '-k' to 'rpc_lockd_flags' in rc.conf.

Highlights include:

* Thread-safe kernel RPC client - many threads can use the same RPC
  client handle safely with replies being de-multiplexed at the socket
  upcall (typically driven directly by the NIC interrupt) and handed
  off to whichever thread matches the reply. For UDP sockets, many RPC
  clients can share the same socket. This allows the use of a single
  privileged UDP port number to talk to an arbitrary number of remote
  hosts.

* Single-threaded kernel RPC server. Adding support for multi-threaded
  server would be relatively straightforward and would follow
  approximately the Solaris KPI. A single thread should be sufficient
  for the NLM since it should rarely block in normal operation.

* Kernel mode NLM server supporting cancel requests and granted
  callbacks. I've tested the NLM server reasonably extensively - it
  passes both my own tests and the NFS Connectathon locking tests
  running on Solaris, Mac OS X and Ubuntu Linux.

* Userland NLM client supported. While the NLM server doesn't have
  support for the local NFS client's locking needs, it does have to
  field async replies and granted callbacks from remote NLMs that the
  local client has contacted. We relay these replies to the userland
  rpc.lockd over a local domain RPC socket.

* Robust deadlock detection for the local lock manager. In particular
  it will detect deadlocks caused by a lock request that covers more
  than one blocking request. As required by the NLM protocol, all
  deadlock detection happens synchronously - a user is guaranteed that
  if a lock request isn't rejected immediately, the lock will
  eventually be granted. The old system allowed for a 'deferred
  deadlock' condition where a blocked lock request could wake up and
  find that some other deadlock-causing lock owner had beaten them to
  the lock.

* Since both local and remote locks are managed by the same kernel
  locking code, local and remote processes can safely use file locks
  for mutual exclusion. Local processes have no fairness advantage
  compared to remote processes when contending to lock a region that
  has just been unlocked - the local lock manager enforces a strict
  first-come first-served model for both local and remote lockers.

Sponsored by:	Isilon Systems
PR:		95247 107555 115524 116679
MFC after:	2 weeks
2008-03-26 15:23:12 +00:00