Commit Graph

1823 Commits

Author SHA1 Message Date
Stefan Eßer
5e04571cf3 sys/bitset.h: reduce visibility of BIT_* macros
Add two underscore characters "__" to names of BIT_* and BITSET_*
macros to move them to the implementation name space and to prevent
a name space pollution due to BIT_* macros in 3rd party programs with
conflicting parameter signatures.

These prefixed macro names are used in kernel header files to define
macros in e.g. sched.h, sys/cpuset.h and sys/domainset.h.

If C programs are built with either -D_KERNEL (automatically passed
when building a kernel or kernel modules) or -D_WANT_FREENBSD_BITSET
(or this macros is defined in the source code before including the
bitset macros), then all macros are made visible with their previous
names, too. E.g., both __BIT_SET() and BIT_SET() are visible with
either of _KERNEL or _WANT_FREEBSD_BITSET defined.

The main reason for this change is that some 3rd party sources
including sched.h have been found to contain conflicting BIT_*
macros.

As a work-around, parts of shed.h have been made conditional and
depend on _WITH_CPU_SET_T being set when sched.h is included.
Ports that expect the full functionality provided by sched.h need
to be built with -D_WITH_CPU_SET_T. But this leads to conflicts if
BIT_* macros are defined in that program, too.

This patch set makes all of sched.h visible again without this
parameter being passed and without any name space pollution due
to BIT_* macros becoming visible when sched.h is included.

This patch set will be backported to the STABLE branches, but ports
will need to use -D_WITH_CPU_SET_T as long as there are supported
releases that do not contain these patches.

Reviewed by:	kib, markj
MFC after:	1 month
Relnotes:	yes
Differential Revision:	https://reviews.freebsd.org/D33235
2021-12-05 23:00:25 +01:00
Konstantin Belousov
a18ddf7757 posix_spawn: add closefrom non-portable action
Namely posix_spawn_file_actions_addclosefrom_np, in the form it is
provided by glibc.

Reviewed by:	kevans, ngie (previous version)
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D33143
2021-11-30 03:43:54 +02:00
Konstantin Belousov
25cda42a49 posix_spawn: add chdir-related non-portable actions
Namely posix_spawn_file_actions_addchdir_np and
posix_spawn_file_actions_addfchdir_np.

Reviewed by:	kevans, ngie (previous version)
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D33143
2021-11-30 03:43:54 +02:00
Konstantin Belousov
90fa9705d5 sched.h: Hide all Linux compat sched_* functions under _WITH_CPU_SET_T
Instead of only hiding cpu_set_t compat typedef itself.

Too many software packages assume that sched_getaffinity() presence
implies full source compatibility with glibc.  We can (and should)
handle missing CPU_* macros, but then there are incompatible BIT_* uses
which cannot be fixed in src/.

So hide everything under _WITH_CPU_SET_T, in particular, do not expose
sched_getcpu(), sched_get/setaffinity(), as well as CPU_* and BIT_*
macros.  Consumers that want sched* functions must opt-in.

Reported by:	portmgr (antoine)
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2021-11-13 19:27:54 +02:00
Konstantin Belousov
77b2c2f814 Add sched_getcpu()
for compatibility with Linux.

Reviewed by:	jhb
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D32901
2021-11-10 21:18:54 +02:00
Konstantin Belousov
43736b71dd Add sched_get/setaffinity(3)
for compatibility with Linux.

Reviewed by:	jhb
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D32901
2021-11-10 21:18:54 +02:00
Konstantin Belousov
160b4b922b Add real sched.h
It is required by IEEE Std 1003.1-2008 AKA POSIX.

Put some Linux compatibility stuff under BSD_VISIBLE namespace, in
particular, sys/cpuset.h definitions.  Also, if user really want
Linux compatibility, she can request cpu_set_t typedef with
_WITH_CPU_SET_T define.

Reviewed by:	jhb
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D32901
2021-11-10 21:18:53 +02:00
Mariusz Zaborski
597b026757 libc: add clearenv function
The clearenv(3) function allows us to clear all environment
variable in one shot. This may be useful for security programs that
want to control the environment or what variables are passed to new
spawned programs.

Reviewed by:	scf, markj (secteam), 0mp (manpages)
Differential Revision:	https://reviews.freebsd.org/D28223
2021-11-07 16:20:15 +01:00
Steve Kargl
046e2d5db1 Implementations of cexpl()
The change implements cexpl() for both ld80 and ld128 architectures.
Testing was done on x86_64 and aarch64 systems.

Along the way sincos[fl]() use an optimization that reduces the argument
to being done one rather than twice.  This optimization actually pointed
to a bug in the ld128 version of sincosl(), which is now fixed.  In
addition, the minmax polynomial coefficients for sincosl() have been
updated.

A concise log of the file-by-file changes follows.

* include/complex.h:
  . Add a prototype for cexpl().

* lib/msun/Makefile:
  . Add s_cexpl.c to the build.
  . Setup a link for cexpl.3 to cexp.3.

* lib/msun/Symbol.map:
  . Expose cexpl symbol in libm shared library.

* lib/msun/ld128/s_cexpl.c:
  * Implementation of cexpl() for 128-bit long double architectures.
    Tested on an aarch64 system.

* lib/msun/ld80/s_cexpl.c:
  * Implementation of cexpl() for Intel 80-bit long double.

* lib/msun/man/cexp.3:
  . Document cexpl().

* lib/msun/man/complex.3:
  . Add a BUGS section about cpow[fl].

* lib/msun/src/s_cexp.c:
  . Include float.h for weak references on 53-bit long double targets.
  . Use sincos() to reduce argument reduction cost.

* lib/msun/src/s_cexpf.c:
  . Use sincosf() to reduce argument reduction cost.

* lib/msun/src/k_sincosl.h:
  . Catch up with the new minmax polynomial coefficients for the kernel for
    the 128-bit cosl() implementation.
  . BUG FIX: *cs was used where *sn should have been.  This means that sinl()
    was no computed correctly when iy != 0.

* lib/msun/src/s_cosl.c:
  . Include fpmath.h to get access to IEEEl2bits.
  . Replace M_PI_4 with pio4,  a 64-bit or 113-bit approximation for pi / 4.

PR:	216862
MFC after:	1 week
2021-11-05 13:51:42 +02:00
Konstantin Belousov
49ad342cc1 Add _Fork()
Current POSIX standard requires fork() to be async-signal safe.  Neither
our implementation, nor implementations in other operating systems are,
and practically it is impossible to make fork() async-signal safe without
too much efforts.  Also, that would put undue requirement that all atfork
handlers should be async-signal safe as well, which contradicts its main
use.

As result, Austin Group dropped the requirement, and added a new function
_Fork() that should be async-signal safe, but it does not call atfork
handlers.  Basically, _Fork() can be implemented as a raw syscall.

Release of glibc 2.34 added _Fork(), do the same for FreeBSD.
Clarify threading behavior for fork() in the manpage.

Reviewed by:	markj
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
Differential revision:	https://reviews.freebsd.org/D31378
2021-08-03 21:19:32 +03:00
Warner Losh
7b797ba27a time.h: reduce CLOCK_ namespace pollution, move to _clock_id.h
Attempt to comply with the strict namespace pollution requirements of
_POSIX_C_SOURCE. Add guards to limit visitbility of CLOCK_ and TIMER_
defines as appropriate. Only define the CLOCK_ variables relevant to the
specific standards. Move all the sharing to sys/_clock_id.h and make
time.h and sys/time.h both include that rather than copy due to the
now large number of clocks and compat defines.

Please note: The old time.h previously used these newer dates:
	CLOCK_REALTIME			199506
	CLOCK_MONOTONIC			200112
	CLOCK_THREAD_CPUTIME_ID		200112
	CLOCK_PROCESS_CPUTIME_ID	200112

but glibc defines all of these for 199309. glibc uses this date for all
these values, however, only CLOCK_REALTIME was in IEEE 1003.1b. Add a
comment about this to document it. A large number of programs and
libraries assume that these will be defined for _POSIX_C_SOURCE =
199309.

In addition, leak CLOCK_UPTIME_FAST for the pocl package until it can be
updated to use a simple CLOCK_MONOTONIC.

Reviewed by:		kib
Sponsored by:		Netflix
Differential Revision:	https://reviews.freebsd.org/D31056
2021-07-30 17:20:22 -06:00
Konstantin Belousov
ee37f64cf8 libc: add mempcpy(3) and wmempcpy(3)
Reviewed by:	markj
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D31180
2021-07-15 19:40:28 +03:00
Alfonso Gregory
849dcdb1c0 Change strmode argument type to mode_t
Finally, we have the correct function definition for strmode.  NetBSD/OpenBSD
did this many years ago. This code is weird sign extension safe.

Reviewed by:	imp@
Pull Request:	https://github.com/freebsd/freebsd-src/pull/493
2021-06-29 17:38:45 -06:00
Alex Richardson
9bb8a4091c Reduce code duplication in machine/_types.h
Many of these typedefs are the same across all architectures or can
be set based on an architecture-independent compiler-provided macro
(e.g. __SIZEOF_SIZE_T__). These macros have been available since GCC 4.6
and Clang sometime before 3.0 (godbolt.org does not have any older clang
versions installed).

I originally considered using the compiler-provided `__FOO_TYPE__` directly.
However, in order to do so we have to check that those match the previous
typedef exactly (not just that they have the same size) since any change
would be an ABI break. For example, changing `long` to `long long` results
in different C++ name mangling. Additionally, Clang and GCC disagree on
the underlying type for some of (u)int*_fast_t types, so this change
only moves the definitions that are identical across all architectures
and does not touch those types.

This de-deduplication will allow us to have a smaller diff downstream in
CheriBSD: we only have to only change the (u)intptr_t definition in
sys/_types.h in CheriBSD instead of having to change machine/_types.h for
all CHERI-enabled architectures (currently RISC-V, AArch64 and MIPS).

Reviewed By: imp, kib
Differential Revision: https://reviews.freebsd.org/D29895
2021-06-14 16:30:16 +01:00
Emmanuel Vadot
663b174b5b an: Remove driver
Last an(4) devices have been End Of Life and End Of Sale in 2007.
Time to remove this driver.

Differential Revision:	https://reviews.freebsd.org/D30679
Reviewed by:		imp (earlier version), emaste (earlier version)
Sponsored by:		Diablotin Systems
2021-06-11 21:18:04 +02:00
Emmanuel Vadot
f41efc453a Fix build with WITHOUT_AUDIT=yes in src.conf
Always install the audit related includes are some part of the source
always requires them.

Reported by:	many
Fixes:	8c3eaf244a
2021-04-15 14:11:13 +02:00
John Baldwin
7af04dff02 Only symlink cryptodev.h into /usr/include/crypto/
I missed updating the symlink side in the earlier commit.

Fixes:		283352dd4f
MFC after:	1 week
2021-03-19 16:59:44 -07:00
Kyle Evans
f187d6dfbf base: remove if_wg(4) and associated utilities, manpage
After length decisions, we've decided that the if_wg(4) driver and
related work is not yet ready to live in the tree.  This driver has
larger security implications than many, and thus will be held to
more scrutiny than other drivers.

Please also see the related message sent to the freebsd-hackers@
and freebsd-arch@ lists by Kyle Evans <kevans@FreeBSD.org> on
2021/03/16, with the subject line "Removing WireGuard Support From Base"
for additional context.
2021-03-17 09:14:48 -05:00
Emmanuel Vadot
060f0a17bb Revert "include: Remove symlink installation"
This reverts commit 0006530aa1.
2021-03-16 08:40:59 +01:00
Emmanuel Vadot
35b6d9b65e Revert "include: Tag directly the last headers"
This reverts commit 839fc8cdf9.
2021-03-16 08:40:54 +01:00
Emmanuel Vadot
839fc8cdf9 include: Tag directly the last headers
We cannot easily used the TAG here and we don't yet have something to install
even .h from a diretory in bsd.prog.mk

Reviewed by:	bapt
Differential Revision:	https://reviews.freebsd.org/D29170
MFC after:      2 weeks
2021-03-16 07:13:00 +01:00
Emmanuel Vadot
0006530aa1 include: Remove symlink installation
headers could be installed as symlink to the source tree instead of copies.
Remove the possibility to do that.
This make the makefile easier to read and to maintain and also don't duplicate
code.

While here remove some directories from LSBUDIRS as we already install them using
the INCS stuff.

Reviewed by:	bapt
Differential Revision:	https://reviews.freebsd.org/D29167
MFC after:      2 weeks
2021-03-16 07:12:53 +01:00
Emmanuel Vadot
0594b28795 pkgbase: Install all cam includes with INCS
Now they are correctly taggued and put into the -dev package

Reviewed by:	bapt
Differential Revision:	https://reviews.freebsd.org/D29166
MFC after:      2 weeks
2021-03-16 07:12:49 +01:00
Emmanuel Vadot
8c3eaf244a pkgbase: Install all BSM includes with INCS
Now they are correctly taggued and put them into the libbsm package

Reviewed by:	bapt
Differential Revision:	https://reviews.freebsd.org/D29165
MFC after:      2 weeks
2021-03-16 07:12:46 +01:00
John Baldwin
283352dd4f Stop installing kernel-only crypto headers to /usr/include/crypto.
The only user-facing header from OCF is <crypto/cryptodev.h>.

PR:		254167 (exp-run)
MFC after:	1 week
Sponsored by:	Chelsio Communications
2021-03-15 17:00:21 -07:00
Kyle Evans
74ae3f3e33 if_wg: import latest fixup work from the wireguard-freebsd project
This is the culmination of about a week of work from three developers to
fix a number of functional and security issues.  This patch consists of
work done by the following folks:

- Jason A. Donenfeld <Jason@zx2c4.com>
- Matt Dunwoodie <ncon@noconroy.net>
- Kyle Evans <kevans@FreeBSD.org>

Notable changes include:
- Packets are now correctly staged for processing once the handshake has
  completed, resulting in less packet loss in the interim.
- Various race conditions have been resolved, particularly w.r.t. socket
  and packet lifetime (panics)
- Various tests have been added to assure correct functionality and
  tooling conformance
- Many security issues have been addressed
- if_wg now maintains jail-friendly semantics: sockets are created in
  the interface's home vnet so that it can act as the sole network
  connection for a jail
- if_wg no longer fails to remove peer allowed-ips of 0.0.0.0/0
- if_wg now exports via ioctl a format that is future proof and
  complete.  It is additionally supported by the upstream
  wireguard-tools (which we plan to merge in to base soon)
- if_wg now conforms to the WireGuard protocol and is more closely
  aligned with security auditing guidelines

Note that the driver has been rebased away from using iflib.  iflib
poses a number of challenges for a cloned device trying to operate in a
vnet that are non-trivial to solve and adds complexity to the
implementation for little gain.

The crypto implementation that was previously added to the tree was a
super complex integration of what previously appeared in an old out of
tree Linux module, which has been reduced to crypto.c containing simple
boring reference implementations.  This is part of a near-to-mid term
goal to work with FreeBSD kernel crypto folks and take advantage of or
improve accelerated crypto already offered elsewhere.

There's additional test suite effort underway out-of-tree taking
advantage of the aforementioned jail-friendly semantics to test a number
of real-world topologies, based on netns.sh.

Also note that this is still a work in progress; work going further will
be much smaller in nature.

MFC after:	1 month (maybe)
2021-03-14 23:52:04 -05:00
Scott Long
afbee98232 Remove xform_poly1305.h from the build, it is not necessary. 2021-03-05 21:28:10 +00:00
Konstantin Belousov
3ae8d83d04 Remove __NO_TLS.
All supported platforms support thread-local vars and __thread.

Reviewed by:	emaste
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D28796
2021-02-23 20:08:10 +02:00
Alex Richardson
74eb7f97ec Fix make includes path to nvpair.h
Fixes a typo introduced in 9e5787d228
2021-01-19 21:23:25 +00:00
Alex Richardson
8d30571d45 include: Delete stale symlinks using find(1) instead of a shell loop.
This reduces the number of execve() syscalls during make includes by 88.

Reviewed By:	jhb
Differential Revision: https://reviews.freebsd.org/D27622
2021-01-19 21:23:25 +00:00
Warner Losh
a21def4d56 pccard: Remove wi(4) driver
Remove wi(4). pccard is going away, and wi only supports PC Card
devices, though it has a minor amount of glue to also support
PCI cards. However, removing the one without removing the other
is hard, so the whole driver is being removed.

Relnotes: Yes
2021-01-07 20:41:06 -07:00
Vladimir Kondratyev
9477390796 hid: Import hidraw(4) - driver for access to raw HID device data
This driver provides raw access to HID devices through uhid(4)-compatible
interface and is based on pre-8.x uhid(4) code. Unlike uhid(4) it does
not take devices in to monopoly ownership and allows parallel access
from other drivers.

hidraw supports Linux's hidraw-compatible interface as well.

Reviewed by:	hselasky
Differential revision:	https://reviews.freebsd.org/D27992
2021-01-08 02:18:43 +03:00
Vladimir Kondratyev
67de2db262 Factor-out hardware-independent part of USB HID support to new module
It will be used by the upcoming HID-over-i2C implementation.  Should be
no-op, except hid.ko module dependency is to be added to affected drivers.

Reviewed by:	hselasky, manu
Differential revision:	https://reviews.freebsd.org/D27867
2021-01-08 02:18:42 +03:00
Alex Richardson
7b0d3a3ccf include: Use printf(1) instead of shell loops for header symlinks
Using a shell for loop means we have to spawn a separate install(1)
process for each header that is symlinked. This patch uses printf(1) to
generate an argument list that has been prefixed with the correct number
of ../ and then uses a single install(1) invocation.

This reduces the number of execve() calls during make includes from 2442
(with D27622) to 1382. Running `make symlinks` in include/ now spawns 214
processes instead of 1276 without this patch.

Reviewed By:	jhb
Differential Revision: https://reviews.freebsd.org/D27723
2021-01-07 09:26:22 +00:00
Emmanuel Vadot
f61a3898bb include: Use INCSGROUPS for a few files
Instead of using install directly use INCSGROUPS for them.
All those files are the ones we installed when the directory have more .h
files that we don't want to install so they aren't using the LSUBDIR stuff.

Reviewed by:	bapt
Differential Revision:	https://reviews.freebsd.org/D27612
2021-01-04 16:36:43 +01:00
Emmanuel Vadot
b6cc69322a include: Tag the last includes files as part of the -dev package
Reviewed by:	bapt
Differential Revision:	https://reviews.freebsd.org/D27618
2021-01-04 16:36:39 +01:00
Konstantin Belousov
7d7fad7bd9 Add tcgetwinsize(3) and tcsetwinsize(3) to termios
These functions get/set tty winsize respectively, and are trivial wrappers
around corresponding termio ioctls.

The functions are expected to be a part of POSIX.1 issue 8:
https://www.austingroupbugs.net/view.php?id=1151#c3856.
They are currently available in NetBSD and in musl libc.

PR:	251868
Submitted by:	Soumendra Ganguly <soumendraganguly@gmail.com>
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D27650
2020-12-25 20:43:09 +02:00
Konstantin Belousov
65bf304336 Change POSIX compliance level for visibility of strerror_l(3).
Third-party code tests for strerror_l(3) without specifying
_POSIX_SOURCE, and then expects that the function is prototyped with
_POSIX_SOURCE set to 200112.

Reported and tested by:	antoine
Sponsored by:	The FreeBSD Foundation
MFC after:	13 days
2020-12-17 17:08:25 +00:00
Konstantin Belousov
675079b1ea Implement strerror_l().
Only for the arches that provide user-mode TLS.

PR: 251651
Requested by:	yuri
Discussed with:	emaste, jilles, tijl
Sponsored by:	The FreeBSD Foundation
Differential revision:	https://reviews.freebsd.org/D27495
MFC after:	2 weeks
2020-12-16 09:02:09 +00:00
Thomas Munro
cc7edd258c Add collation version support to querylocale(3).
Provide a way to ask for an opaque version string for a locale_t, so
that potential changes in sort order can be detected.  Similar to
ICU's ucol_getVersion() and Windows' GetNLSVersionEx(), this API is
intended to allow databases to detect when text order-based indexes
might need to be rebuilt.

The CLDR version is extracted from CLDR source data by the Makefile
under tools/tools/locale, written into the machine-generated Makefile
under shared/colldef, passed to localedef -V, and then written into
LC_COLLATE file headers.  The initial version is 34.0.
tools/tools/locale was recently updated to pull down 35.0, but the
output hasn't been committed under share/colldef yet, so that will
provide the first observable change when it happens.  Other versioning
schemes are possible in future, because the format is unspecified.

Reviewed by:	bapt, 0mp, kib, yuripv (albeit a long time ago)
Differential Revision:	https://reviews.freebsd.org/D17166
2020-11-08 02:50:34 +00:00
Warner Losh
60b426f46c Remove obsolete check for GCC < 3 and support for Intel Compiler
We no longer support old versions of GCC. Remove this check by
assuming it's false. That will make the entire expression false.  Also
remove support for Intel compiler, it's badly bitrotted.  Technically,
this removes support for C89 and K&R from compilers that don't define
_Bool in those compilation environments as well. I'm unaware of any
working compiler today for which that would be relevant (pcc has it
and tcc sadly isn't working for other reasons), though if one
pops up in ports, I'll work to resolve the issue.
2020-10-24 23:21:06 +00:00
Stefan Eßer
34b38e1245 Add search of LOCALBASE/share/calendar for calendars supplied by a port.
Calendar files in LOCALBASE override similarily named ones in the base
system. This could easily be changed if the base system calendars should
have precedence, but it could lead to a violation of POLA since then the
port's files were ignored unless those in base have been deleted.

There was no definition of _PATH_LOCALBASE in paths.h, but verbatim uses
of /usr/local existed for _PATH_DEFPATH. Use _PATH_LOCALBASE here to ease
a consistent modification of this prefix.

Reviewed by:	imp, pfg
Differential Revision:	https://reviews.freebsd.org/D26882
2020-10-23 09:22:23 +00:00
Xin LI
5011fb430a Further refinements of ptsname_r(3) interface:
- Hide ptsname_r under __BSD_VISIBLE for now as the specification
   is not finalized at this time.
 - Keep Symbol.map sorted.
 - Avoid the interposing of ptsname_r(3) from an user application
   from breaking ptsname(3) by making the implementation a static
   method and call the static function from ptsname(3) instead.

Reported by:	kib
Reviewed by:	kib, jilles
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D26845
2020-10-20 01:29:45 +00:00
Xin LI
3e7224dffe Implement ptsname_r.
MFC after:	2 weeks
PR:		250062
Reviewed by:	jilles, 0mp, Ray <i maskray me>
Differential Revision:	https://reviews.freebsd.org/D26647
2020-10-17 04:14:38 +00:00
Brandon Bergren
b963e10d68 [PowerPC64LE] Ensure nvram is built on powerpc64le.
Fix some cases where conditionals that were trying to exclude powerpcspe
were also excluding powerpc64le.

Sponsored by:	Tag1 Consulting, Inc.
2020-09-13 18:24:15 +00:00
Kyle Evans
69112cca60 getlogin_r: fix the type of len
getlogin_r is specified by POSIX to to take a size_t len, not int. Fix our
version to do the same, bump the symbol version due to ABI change and
provide compat.

This was reported to break compilation of Ruby 2.8.

Some discussion about the necessity of the ABI compat did take place in the
review. While many 64-bit platforms would likely be passing it in a 64-bit
register and zero-extended and thus, not notice ABI breakage, some do
sign-extend (e.g. mips).

PR:		247102
Submitted by:	Bertram Scharpf <software@bertram-scharpf.de> (original)
Submitted by:	cem (ABI compat)
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D26335
2020-09-09 18:07:13 +00:00
Matt Macy
9e5787d228 Merge OpenZFS support in to HEAD.
The primary benefit is maintaining a completely shared
code base with the community allowing FreeBSD to receive
new features sooner and with less effort.

I would advise against doing 'zpool upgrade'
or creating indispensable pools using new
features until this change has had a month+
to soak.

Work on merging FreeBSD support in to what was
at the time "ZFS on Linux" began in August 2018.
I first publicly proposed transitioning FreeBSD
to (new) OpenZFS on December 18th, 2018. FreeBSD
support in OpenZFS was finally completed in December
2019. A CFT for downstreaming OpenZFS support in
to FreeBSD was first issued on July 8th. All issues
that were reported have been addressed or, for
a couple of less critical matters there are
pull requests in progress with OpenZFS. iXsystems
has tested and dogfooded extensively internally.
The TrueNAS 12 release is based on OpenZFS with
some additional features that have not yet made
it upstream.

Improvements include:
  project quotas, encrypted datasets,
  allocation classes, vectorized raidz,
  vectorized checksums, various command line
  improvements, zstd compression.

Thanks to those who have helped along the way:
Ryan Moeller, Allan Jude, Zack Welch, and many
others.

Sponsored by:	iXsystems, Inc.
Differential Revision:	https://reviews.freebsd.org/D25872
2020-08-25 02:21:27 +00:00
Kyle Evans
7c5ec5fe6a <regex.h>: reserve a regcomp field for REG_POSIX
For libc regcomp, this will be a nop. libregex will take this to mean that
it needs to turn off GNU extensions, effectively switching it back to the
POSIX-compliant libc implementation at runtime.
2020-07-31 12:40:31 +00:00
Konstantin Belousov
aeafed21c4 Make CLOCK_REALTIME and TIMER_ABSTIME available for XOPEN_SOURCE >= 500.
Reported by:	jbeich
PR:	247701
Reviewed by:	jilles
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D25554
2020-07-14 20:23:27 +00:00
Olivier Cochard
d371ed1c4b Install extra TCP stack header files: They are needed to compile a userland
component of TCP Blackbox Recorder as example.

Approved by:	rrs
Sponsored by:	Netflix
Differential Revision:	https://reviews.freebsd.org/D25584
2020-07-08 21:40:27 +00:00