Allocate a temporary buffer in the kernel to serve as the CCB data
pointer for a pass-through transaction and use copyin/copyout to
shuffle the data to/from the user buffer.
Reviewed by: scottl, brooks
Obtained from: CheriBSD
MFC after: 2 weeks
Sponsored by: DARPA
Differential Revision: https://reviews.freebsd.org/D24489
The handle_string callback for the ENCIOC_SETSTRING ioctl was passing
a user pointer to memcpy(). Fix by using copyin() instead.
For ENCIOC_GETSTRING ioctls, the handler was storing the user pointer
in a CCB's data_ptr field where it was indirected by other code. Fix
this by allocating a temporary buffer (which ENCIOC_SETSTRING already
did) and copying the result out to the user buffer after the CCB has
been processed.
Reviewed by: kib
Obtained from: CheriBSD
MFC after: 1 week
Sponsored by: DARPA
Differential Revision: https://reviews.freebsd.org/D24487
These two sysctls were added to support UFS softupdates journalling
with snapshots. However, the changes to fsck to use them were never
committed and there have never been any in-tree uses of these sysctls.
More details from Kirk:
When journalling got added to soft updates, its journal rollback freed
blocks that it thought were no longer in use. But it does not take
snapshots into account (i.e., if a snapshot is still using it, then it
cannot be freed). So I added the needed logic to fsck by having the
free go through the kernel's blkfree code so it could grab blocks that
were still needed by snapshots. That is done using the setbufoutput
hack. I never got that code working reliably, so it is still sitting
in my work directory. Which also explains why you still cannot take
snapshots on filesystems running with journalling...
In looking over my use of this feature, and in particular the troubles
I was having with it, I conclude that it may be better to extract the
code from the kernel that handles freeing blocks claimed by snapshots
and putting it into fsck directly. My original intent was that it is
complex and at the time changing, so only having to maintain it in one
place was appealing. But at this point it has not changed in years and
the hacks like setinode and setbufoutput to be able to use the kernel
code is sufficiently ugly, that I am leaning towards just extracting
it.
Reviewed by: mckusick
MFC after: 1 week
Sponsored by: DARPA
Differential Revision: https://reviews.freebsd.org/D24484
This avoids passing garbage to sigprocmask() if the jump buffer is
invalid.
Reviewed by: mhorne
Obtained from: CheriBSD
Sponsored by: DARPA
Differential Revision: https://reviews.freebsd.org/D24483
If DTRACE is enabled at compile time, all kernel breakpoint traps are
first given to dtrace to see if they are triggered by a FBT probe.
Previously if dtrace didn't recognize the trap, it was silently
ignored breaking the handling of other kernel breakpoint traps such as
the debug.kdb.enter sysctl. This only returns early from the trap
handler if dtrace recognizes the trap and handles it.
Submitted by: Nicolò Mazzucato <nicomazz97@gmail.com>
Reviewed by: markj
Obtained from: CheriBSD
Differential Revision: https://reviews.freebsd.org/D24478
While here, replace the array of mapping structures with an array of
string pointers where the index is the capability value.
Submitted by: Rob Fairbanks <rob.fx907@gmail.com>
Reviewed by: rgrimes
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D24289
blockcount_wait() still unconditionally waits for the count to reach
zero before returning.
Tested by: pho (a larger patch)
Reviewed by: kib
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D24513
The sysctl output looks like this:
dev.hwpstate_intel.0.epp: 50
dev.hwpstate_intel.0.%parent: cpu0
dev.hwpstate_intel.0.%pnpinfo:
dev.hwpstate_intel.0.%location:
dev.hwpstate_intel.0.%driver: hwpstate_intel
dev.hwpstate_intel.0.%desc: Intel Speed Shift
but all the '%' got escaped in the manual page, un-escape them.
While here:
- Move the example of dev.hwpstate_intel.%d.%parent after the description to
align with others.
- Capitalize "CPU" (*)
Submitted by: danfe (*)
Reviewed by: cem
Differential Revision: https://reviews.freebsd.org/D24520
The current situation results in intermittent breakage if data gets split up
with the sign bit set on the data1 half of it, as PAIR32TO64 will then:
data1 | (data2 << 32) -> resulting in data1 getting sign-extended when it's
implicitly widened and clobbering the result. AFAICT, there's no compelling
reason for these to be signed.
This was most exposed by flakiness in the kqueue timer tests under compat32
after the ABSTIME test got switched over to using a better clock and
microseconds.
Reviewed by: kib
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D24518
kmem_alloc_attr_domain() and kmem_alloc_contig_domain() duplicated each
other's page allocation and reclamation logic. Place it in a single
function to make it easier to add additional consumers. No functional
change intended.
Reviewed by: jeff, kib
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D24475
This simplifies some planned changes. No functional change intended.
Reviewed by: kib
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D24474
in all cases, by adjust snd_una right after the
connection initialization, to include the one byte
in sequence space occupied by the SYN bit.
This does not change the regular ACK processing,
while making the BYTES_THIS_ACK macro to work properly.
PR: 235256
Reviewed by: tuexen (mentor), rgrimes (mentor)
Approved by: tuexen (mentor), rgrimes (mentor)
MFC after: 2 weeks
Sponsored by: NetApp, Inc.
Differential Revision: https://reviews.freebsd.org/D19000
This unbreaks the i386 kqueue timer tests after a recent change switched
NOTE_ABSTIME over to using microseconds. Notably, the data argument (which
holds useconds) is an int64_t, but we were passing it to timer2sbintime
which takes an intptr_t. Perhaps in a previous incarnation, intptr_t would
have made sense, but now it just leads to the timestamp getting truncated
and subsequently rejected when it no longer fits in an intptr_t.
PR: 245768
Reported by: lwhsu / CI
MFC after: 1 week
Add some prose and a diagram describing the layout of the cipher IV
for AES-CTR and AES-GCM and how it relates to the ESP IV stored in the
packet after the ESP header. Also, remove an XXX comment about the
initial block counter value used for AES-CTR in esp_output as the
current code matches the RFC (and the equivalent code in esp_input
didn't have the XXX comment).
Discussed with: cem
The sole in-tree user of this flag has been retired, so remove this
complexity from all drivers. While here, add a helper routine drivers
can use to read the current request's IV into a local buffer. Use
this routine to replace duplicated code in nearly all drivers.
Reviewed by: cem
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D24450
This is the only place that uses CRYPTO_F_IV_GENERATE. All crypto
drivers currently duplicate the same boilerplate code to handle this
case. Doing the generation directly removes complexity from drivers.
It also simplifies support for separate input and output buffers.
Reviewed by: cem
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D24449
[PowerPC] Do not attempt to reuse load for 64-bit FP_TO_UINT without
FPCVT
We call the function that attempts to reuse the conversion without
checking whether the target matches the constraints that the callee
expects. This patch adds the check prior to the call.
Fixes: https://bugs.llvm.org/show_bug.cgi?id=43976
Differential revision: https://reviews.llvm.org/D77564
This should fix 'Assertion failed: ((Op.getOpcode() == ISD::FP_TO_SINT
|| Subtarget.hasFPCVT()) && "i64 FP_TO_UINT is supported only with
FPCVT"), function LowerFP_TO_INTForReuse, file
/usr/src/contrib/llvm/lib/Target/PowerPC/PPCISelLowering.cpp, line 7276'
when building the devel/libslang2 port (and a few others) for PowerPC64.
Requested by: pkubaj
MFC after: 6 weeks
X-MFC-With: 358851
In r360126, I meant to have a different mask only on powerpc, not powerpc64.
Update the check to check that we're not compiling for powerpc64.
Reported by: jhibbits
Approved by: wulf (implicit)
MFC after: 2 weeks
X-MFC-Note: 12 only
X-MFC-With: r360126
Differential Revision: D24370 (followup)
All of the 'goto out;' cases in this probe routine without explicit
initialization of 'ret' indicate error cases and were clearly intended
to use the initial definition of 'ret' with ENXIO. However, 'ret' was
accidentally squashed by reuse for a subroutine call near the beginning
of probe.
Use a different variable for the subroutine status to preserve ENXIO ret
for the 'goto out's as a minimal solution to the panic reported at attach
for now.
PR: 245757
Use FinishThunk to finish musttail thunks
FinishThunk, and the invariant of setting and then unsetting
CurCodeDecl, was added in 7f416cc42638 (2015). The invariant didn't
exist when I added this musttail codepath in ab2090d10765 (2014).
Recently in 28328c3771, I started using this codepath on non-Windows
platforms, and users reported problems during release testing
(PR44987).
The issue was already present for users of EH on i686-windows-msvc,
so I added a test for that case as well.
Reviewed By: hans
Differential Revision: https://reviews.llvm.org/D76444
This should fix 'Assertion failed: (!empty() && "popping exception stack
when not empty"), function popTerminate, file
/usr/src/contrib/llvm-project/clang/lib/CodeGen/CGCleanup.h, line 583'
when building the net-p2p/libtorrent-rasterbar
PR: 244830
Reported by: jbeich, yuri
MFC after: 6 weeks
X-MFC-With: 358851
Change kern.evdev.rcpt_mask from 3 to 12 by default. This makes us much
more evdev-friendly, and will prevent everyone using xorg and wayland with
evdev devices (the default) from needing to change this locally.
powerpc32 still uses the old value for the keyboard part, becaues the adb
keyboard driver used there is not evdev compatible.
Reviewed by: wulf
Approved by: wulf
MFC after: 2 weeks
X-MFC-Note: 12 only
Relnotes: yes
Differential Revision: https://reviews.freebsd.org/D24370
This matches GNU diff(1) behavior and, more importantly, eliminates any
source of confusion if multiple formatting options are specified.
Note that the committed diff differs slightly from the submitted: I've
modified it so that we initialize diff_format to something that isn't an
accepted format option so that we can also reject --normal -c and -c
--normal, which would've otherwise been accepted because the default was
--normal. After option parsing we default it to D_NORMAL if it's still
unset.
PR: 243975
Submitted by: fehmi noyan isi
MFC after: 1 week
It makes tool more convenient to not require user to explicitly convert
namespace device name into controller device name. There should be no
changes to already existing syntaxes.
MFC after: 1 week
vm_page_acquire_unlocked() relies on type-stability of vm_page
structures and assumes that the listq linkage pointers always point to a
vm_page or are NULL. QUEUE_MACRO_DEBUG_TRASH breaks that assumption, so
add an explicit check for a trashed queue pointer before dereferencing.
Reported and tested by: pho
Reviewed by: kib
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D24472
Refer to bluetooth core v5.2 specifications Vol4. Part E. 7.8.27.
PR: 245763
Submitted by: Marc Veldman <marc@bumblingdork.com>
MFC after: 1 week
Sponsored by: Mellanox Technologies
