Michael Tuexen [Fri, 3 Dec 2021 20:28:47 +0000 (21:28 +0100)]
sctp: use the correct traffic class when sending SCTP/IPv6 packets
When sending packets the stcb was used to access the inp and then
access the endpoint specific IPv6 level options. This fails when
there exists an inp, but no stcb yet. This is the case for sending
an INIT-ACK in response to an INIT when no association already
exists. Fix this by just providing the inp instead of the stcb.
Michael Tuexen [Wed, 1 Dec 2021 15:20:17 +0000 (16:20 +0100)]
libc sctp: fix sctp_getladdrs() when reporting no addresses
Section 9.5 of RFC 6458 (SCTP Socket API) requires that
sctp_getladdrs() returns 0 in case the socket is unbound. This
is the cause of reporting 0 addresses. So don't indicate an
error, just report this case as required.
Michael Tuexen [Wed, 1 Dec 2021 09:13:20 +0000 (10:13 +0100)]
libc sctp: fix sctp_getladdrs() for 64-bit BE platforms
When calling getsockopt() with SCTP_GET_LOCAL_ADDR_SIZE, use a
pointer to a 32-bit variable, since this is what the kernel
expects.
While there, do some cleanups.
Rick Macklem [Fri, 26 Nov 2021 23:42:32 +0000 (15:42 -0800)]
nfsd: Add checks for layout errors in LayoutReturn
For a LayoutReturn when using the Flexible File Layout,
error reports may be provided in the request.
Sanity check the size of these error reports and
check that they exist before calling nfsrv_flexlayouterr().
Cy Schubert [Wed, 20 Oct 2021 03:11:40 +0000 (20:11 -0700)]
ipfilter: Avoid more null if-then-else blocks
As in 73db3b64f167, when WITHOUT_INET6 is selected, null if-then-else
blocks are generated because #if statements are incorrectly placed.
Moving the #if statements reduces unnecessary runtime comparisons or
compiler optimizations.
Cy Schubert [Tue, 5 Oct 2021 04:26:58 +0000 (21:26 -0700)]
ipfilter: Add DTrace SDT probe
Add an SDT probe, using the newly created DT5 macro, in similar vein
to DEBUG_PARSE printf for when FTP junk is anticipated and ok. This
will assist in debugging port (active) FTP proxy issues.
- Cluster flags without arguments together.
- Simplify the synopsis of the -a flag. There is no need to distinguish
between address and hostname there.
- Add a missing argument to the -a flag in the description section.
- Fix some typos.
Alexander Motin [Thu, 25 Nov 2021 04:03:20 +0000 (23:03 -0500)]
APEI: Fix Generic Error Data Entry revision 3.0 handling.
Since revision 3.0 this structure grown another field, breaking access
to the following data structures. This change fixes the PCIe errors
decoding on newer systems.
Mark Johnston [Wed, 24 Nov 2021 18:43:26 +0000 (13:43 -0500)]
vm_fault: Introduce a fault_status enum for internal return types
Rather than overloading the meanings of the Mach statuses, introduce a
new set for use internally in the fault code. This makes the control
flow easier to follow and provides some extra error checking when a
fault status variable is used in a switch statement.
vm_fault_lookup() and vm_fault_relookup() continue to use Mach statuses
for now, as there isn't much benefit to converting them and they
effectively pass through a status from vm_map_lookup().
Obtained from: jeff (object_concurrency patches)
Reviewed by: kib
Alexander Motin [Tue, 30 Nov 2021 01:14:13 +0000 (20:14 -0500)]
mpsutil: Fix data truncation by too short buffers.
Length of some string buffers was insufficient for cases of more that
99 targets per HBA or slots per enclosure. Some others are tuned just
for better alignment. While there also fix output formatting issues.
Alexander Motin [Sun, 21 Nov 2021 23:50:59 +0000 (18:50 -0500)]
GEOM: Switch g_io_deliver() locking from cp to pp.
Single provider may have multiple consumers, and locking one of consumers
is not sufficient to protect the provider. Though the only part of the
provider this locking protects now is its statistics.
Reported by: Arka Sharma <arka.sw1988@gmail.com>
MFC after: 2 weeks
Mitchell Horne [Thu, 25 Nov 2021 16:01:11 +0000 (12:01 -0400)]
Implement GET_STACK_USAGE on remaining archs
This definition enables callers to estimate remaining space on the
kstack, and take action on it. Notably, it enables optimizations in the
GEOM and netgraph subsystems to directly dispatch work items when there
is sufficient stack space, rather than queuing them for a worker thread.
Implement it for riscv, arm, and mips. Remove the #ifdefs, so it will
not go unimplemented elsewhere.
Mitchell Horne [Tue, 30 Nov 2021 15:15:44 +0000 (11:15 -0400)]
arm64, powerpc: fix calculation of 'used' in GET_STACK_USAGE
We do not consider the space reserved for the pcb to be part of the
total kstack size, so it should not be included in the calculation of
the used stack size.
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Mitchell Horne [Thu, 25 Nov 2021 15:54:33 +0000 (11:54 -0400)]
i386: take pcb and fpu area into account in GET_STACK_USAGE
On this platform, the pcb and FPU save area are allocated from the top
of each kernel stack, so they should be excluded from the calculation of
the total and used stack sizes.
Reviewed by: kib
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D32581
Alan Somers [Sun, 3 Oct 2021 17:51:14 +0000 (11:51 -0600)]
fusefs: Fix a bug during VOP_STRATEGY when the server changes file size
If the FUSE server tells the kernel that a file's size has changed, then
the kernel must invalidate any portion of that file in cache. But the
kernel can't do that during VOP_STRATEGY, because the file's buffers are
already locked. Instead, proceed with the write.
Alan Somers [Sat, 2 Oct 2021 18:17:36 +0000 (12:17 -0600)]
fusefs: fix a recurse-on-non-recursive lockmgr panic
fuse_vnop_bmap needs to know the file's size in order to calculate the
optimum amount of readahead. If the file's size is unknown, it must ask
the FUSE server. But if the file's data was previously cached and the
server reports that its size has shrunk, fusefs must invalidate the
cached data. That's not possible during VOP_BMAP because the buffer
object is already locked.
Fix the panic by not querying the FUSE server for the file's size during
VOP_BMAP if we don't need it. That's also a a slight performance
optimization.
Alan Somers [Sun, 3 Oct 2021 16:59:04 +0000 (10:59 -0600)]
fusefs: quiet some cache-related warnings
If the FUSE server does something that would make our cache incoherent,
we should print a warning to the user. However, we previously warned in
some situations when we shouldn't, such as if the file's size changed on
the server _after_ our own attribute cache had expired. This change
suppresses the warning in cases like that. It also moves the warning
logic to a single place within the code.
Jessica Clarke [Thu, 11 Nov 2021 18:28:24 +0000 (19:28 +0100)]
mips: Fix build of kernel.tramp.bin after upstream merge
Since the upstream merge we end up with the compiler generating calls to
memcpy (and it appears upstream LLVM does too, so this will probably
also be a problem upstream when the LLVM 13 import is finished). Like
the kernel we should just compile this file with -ffreestanding to avoid
such surprises.
Note that elf_trampoline.c does actually provide a memcpy, but it's
static. That's a bit weird, and means by the time the memcpy calls are
generated by the compiler the explicit ones have already been inlined
and the function itself GC'ed, but since using -ffreestanding is the
right thing to do for this kind of code anyway, that doesn't actually
matter.
Dimitry Andric [Wed, 10 Nov 2021 18:38:23 +0000 (19:38 +0100)]
Apply fix for LLVM PR51957 (Miscompilation in Botan's SHA3)
Merge commit e27a6db5298f from llvm git (by Jameson Nash):
Bad SLPVectorization shufflevector replacement, resulting in write to wrong memory location
We see that it might otherwise do:
%10 = getelementptr {}**, <2 x {}***> %9, <2 x i32> <i32 10, i32 4>
%11 = bitcast <2 x {}***> %10 to <2 x i64*>
...
%27 = extractelement <2 x i64*> %11, i32 0
%28 = bitcast i64* %27 to <2 x i64>*
store <2 x i64> %22, <2 x i64>* %28, align 4, !tbaa !2
Which is an out-of-bounds store (the extractelement got offset 10
instead of offset 4 as intended). With the fix, we correctly generate
extractelement for i32 1 and generate correct code.
Dimitry Andric [Tue, 2 Nov 2021 10:17:37 +0000 (11:17 +0100)]
Fix assertion when building devel/glog with new pass manager
Merge commit 029f1a534489 from llvm git (by Arthur Eubanks):
[LazyCallGraph] Skip blockaddresses
blockaddresses do not participate in the call graph since the only
instructions that use them must all return to someplace within the
current function. And passes cannot retrieve a function address from a
blockaddress.
Dimitry Andric [Mon, 18 Oct 2021 14:50:24 +0000 (16:50 +0200)]
Fix "Bad machine code" when building world for mips or mips64
Merge commit f5755c0849a5 from llvm git (by Jessica Clarke):
[Mips] Add glue between CopyFromReg, CopyToReg and RDHWR nodes for TLS
The MIPS ABI requires the thread pointer be accessed via rdhwr $3, $r29.
This is currently represented by (CopyToReg $3, (RDHWR $29)) followed by
a (CopyFromReg $3). However, there is no glue between these, meaning
scheduling can break those apart. In particular, PR51691 is a report
where PseudoSELECT_I was moved to between the CopyToReg and CopyFromReg,
and since its expansion uses branches, it split the def and use of the
physical register between two basic blocks, resulting in the def being
eliminated and the use having no def. It also seems possible that a
similar situation could arise splitting up the CopyToReg from the RDHWR,
causing the RDHWR to use a destination register other than $3, violating
the ABI requirement.
Thus, add glue between all three nodes to ensure they aren't split up
during instruction selection. No regression test is added since any test
would be implictly relying on specific scheduling behaviour, so whilst
it might be testing that glue is preventing reordering today, changes to
scheduling behaviour could result in the test no longer being able to
catch a regression here, as the reordering might no longer happen for
other unrelated reasons.
Dimitry Andric [Fri, 1 Oct 2021 19:43:21 +0000 (21:43 +0200)]
Stop clang 13 from defining conflicting macros on PowerPC
Merge commit c9539f957f57 from llvm git (by Nemanja Ivanovic):
[PowerPC] Define XL-compatible macros only for AIX and Linux
Since XLC only ever shipped on PowerPC AIX and Linux, it is not
reasonable to provide the compatibility macros on any target other
than those two. This patch restricts those macros to AIX/Linux.
Dimitry Andric [Sat, 16 Oct 2021 21:16:46 +0000 (23:16 +0200)]
llvm-readobj: Add missed source file
In some configurations (e.g. powerpc64) the llvm-readobj tool also needs
contrib/llvm-project/llvm/BinaryFormat/MsgPackWriter.cpp, so add it to
libllvm.
This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-13-init-16847-g88e66fa60ae5, the last commit before
the upstream release/13.x branch was created.
Warner Losh [Thu, 6 May 2021 22:20:19 +0000 (16:20 -0600)]
headers: Implement _ISOC11_SOURCES macro when __POSIX_C_SOURCE defined
When _ISOC11_SOURCES is defined for glibc at the same time
__POSIX_C_SOURCE is defined, it extends the __POSIX_C_SOURCE definition
by exaclty what C11 adds to the spec for each system header. We follow
both OpenBSD's and glibc's convention by also C11 or higher compliation
mode is selected.
The Open Group is working on issuing a new version of the POSIX standard
that will realign the standard from C99 to a newer version of C. This
commit is a stop-gap measure for greater compatibility until that
environment has been standardized.
Warner Losh [Sun, 21 Nov 2021 15:50:46 +0000 (08:50 -0700)]
mpr: fix freeze / release mismatch in timeout code
So, if we're processing a timeout, and we've sent an ABORT to the
firmware for that timeout, but not yet received the response from the
firmware, AND we get another timeout, we queue the timeout and freeze
the queue. However, when we've finally processed them all, we only
release the queue once. This causes all I/O to halt as the devq remains
frozen forever.
Instead, only freeze the queue when we start the process (eg set INRESET
on the target). This will allow the release when all the timed out I/Os
have finished ABORTing.
Warner Losh [Wed, 24 Nov 2021 17:39:10 +0000 (10:39 -0700)]
sys/alq.h: Kernel only file, mark as such
The alq interfaces are 100% in-kernel, so make this whole file #ifdef
_KERNEL. There's no users of this in the tree outside of the kernel, nor
does it define anything that could be useful at peeking into the state
of alq.
Warner Losh [Wed, 24 Nov 2021 17:37:48 +0000 (10:37 -0700)]
sys/acct.h: Add sys/types.h include
There's no harm in including sys/types.h here and acct.h needs it. This
file isn't defined by any standard, so what we do here wrt namespaces
likely doesn't matter. If it does, it will be easy enough to add the
necessary __BSD_VISIBLE guards in the future.
Warner Losh [Wed, 24 Nov 2021 09:25:47 +0000 (02:25 -0700)]
sys/file.h: Allow inclusion when compiling for a strict namespace
Although not part of the standard, this file is sometimes included with
-D_POSIX_C_SOURCE=<value> or -D_XOPEN_SOURCE=<value>. Limit those
sturctures that use types hidden by __BSD_VISIBLE to when they are
visible.
Warner Losh [Wed, 24 Nov 2021 04:14:05 +0000 (21:14 -0700)]
cam: Remove all the write-only variables
Delete all the write only variables in CAM. At worst, the only behavior
change would be to prevent core dumps from chasing NULL pointers (though
I think in all these cases the pointers can't be NULL).
Warner Losh [Tue, 23 Nov 2021 17:51:46 +0000 (10:51 -0700)]
kqueue: Define older kqueue event types better
struct kqueue is designed to live in a restricted namespace, but the
older compat versions are not. Shift to using unsigned short instead
of u_short, unsigned int instead of u_int and the __*int*_t types
instead of the unprefiexed versions.
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