* Fix bug with /32 aliases introduced in 81728a538d.
* Explicitly document business logic for IPv4 ifa routes.
* Remove remnants of rtinit()
* Deduplicate ifa->route prefix code by moving it into ia_getrtprefix()
* Deduplicate conditional check for ifa_maintain_loopback_route() by
moving into ia_need_loopback_route()
* Remove now-unused flags argument from in_addprefix().
Reviewed by: donner
PR: 252883
Differential Revision: https://reviews.freebsd.org/D28246
The following situation can trigger the deadlock:
1) Long time ago a_service was started through rc.d
2) We want to restart a_service and issue service a_service restart
3) rc.subr reads current process PID (via file or process),
sends TERM signal and runs pwait with PID harvested
4) a_service process dies very quickly so it's PID becomes available.
It is possible that while original process was running,
PID counter overflowed and pwait got assigned a_service's PID.
This patch ignores pid(s) to wait that are equal to pwait PID.
Reported by: Dan McGregor, Boris Lytochkin
Submitted by: Boris Lytochkin <lytboris at gmail.com>
Reviewed By: 0mp
MFC after: 2 weeks
PR: 218598
Differential Revision: https://reviews.freebsd.org/D28240
to make it use the right aligned zone.
Reported by: melifaro
Reviewed by: alc, markj (previous version)
Discussed with: jrtc27
Tested by: pho (previous version)
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D28219
UMA page_alloc() does not take an alignment, so UMA can only handle
alignment less then page size.
Noted by: alc
Reviewed by: alc, markj (previous version)
Discussed with: jrtc27
Tested by: pho (previous version)
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D28219
Some tests verify that the capgrp capability does not permit calls to
setgrent(3), but all tests need to ensure that they reset the
capability's group database handle, otherwise the local process and
casper process will be out of sync.
The cap_pwd tests already handle this.
Sponsored by: The FreeBSD Foundation
MFC after: 1 month
Because the "files" and "compat" implementations failed to set the
"stayopen", keyed lookups would close the database handle, contrary to
the purpose of setgroupent(3). setpassent(3)'s implementation does not
have this bug.
PR: 165527
Submitted by: Andrey Simonenko
MFC after: 1 month
The getpwent(3) and getgrent(3) implementations maintain some internal
iterator state. Interleaved calls to functions which do passwd/group
lookups using a key, such as getpwnam(3), would in some cases clobber
this state, causing a subsequent getpwent() or getgrent() call to
restart iteration from the beginning of the database or to terminate
early. This is particularly troublesome in programming environments
where execution of green threads is interleaved within a single OS
thread.
Take care to restore any iterator state following a keyed lookup. The
"files" provider for the passwd database was already handling this
correctly, but "compat" was not, and both providers had this problem
when accessing the group database.
PR: 252094
Submitted by: Viktor Dukhovni <ietf-dane@dukhovni.org>
MFC after: 1 month
Some NSS regression tests for getgrent(3) and getpwent(3) were not
testing anything because the test incorrectly requested creation of a
database snapshot.
Sponsored by: The FreeBSD Foundation
MFC after: 1 month
PNP info definitions currently have an unfortunate requirement in that
they must follow the associated module definition in the module metadata
linker set. Otherwise devmatch can segfault while processing the linker
hints file since kldxref maintains the order in the linker set.
A number of drivers violate this requirement. In some cases this can
cause devmatch(8) to segfault when processing the linker hints file.
Work around the problem for now simply by adjusting the drivers.
Reviewed by: imp
MFC after: 1 week
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D28260
rxd_frag_to_sd() have pf_rv parameter as NULL with the current
code. This patch fixes the NULL pointer dereference in that
case thus avoiding a possible panic.
Submitted by: rajesh1.kumar at amd.com
Reviewed by: gallatin
Differential Revision: https://reviews.freebsd.org/D28115
I believe that rtld does not need to implement them, they are mostly for
the static linker. 'Mostly' because for amd64 our kernel linker loads
object files, and amd64 relocation types could be observed.
Defines were taken from glibc sources.
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D28205
For hardware offload solicited data may potentially be handled more
efficiently than unsolicited due to direct data placement. Or there
can be some unsolicited write buffering limitations. It may create
situations where FirstBurstLength limit is really useful.
Software driver though has no those factors, having to do memcopy()
any way and having no so hard limit on the temporary storage. Same
time more active use of unsolicited transfers allows to avoid some
of Ready To Transfer (R2T) PDU round-trip times and processing.
This change effectively doubles from 64KB to 128KB the maximum size
of write command that can be transferred within one link RTT. Tests
of (64KB, 128KB] QD1 writes mixed with simultaneous QD8 reads over
the same connection, increasing RTT, shows almost double write speed
and half latency, while we should be able to afford few megabytes of
RAM for additional buffering on a target these days.
MFC after: 2 weeks
Sponsored by: iXsystems, Inc.
If ${REPODIR}/${PKG_ABI} does not exist when we begin real-update-packages,
skip the comparison with the non-existent previous repository and just
finish the repo off. This allows external scripts to just assume they can
run `update-packages` rather than figuring out if they'd previously run
`packages` for this Version/Arch combo.
PKG_VERSION_FROM_DIR was added so that we could perhaps detect the three
distinct cases:
1.) If the repo has not yet been created, PKG_VERSION_FROM_DIR will be
empty.
2.) If the repo is in some intermediate state between created and fully
initialized, PKG_VERSION_FROM_DIR may point to the ABI directory.
3.) If the repo is fully initialized, then PKG_VERSION_FROM_DIR points to
the latest build to compare to.
Option #2 is explicitly unhandled at the moment, but this is no different
than it was before.
Reviewed-by: manu
Differential-Revision: https://reviews.freebsd.org/D28229
This was blindly moved in r360722 but the variable being printed is not
yet initialised. It's of little use and can easily be added back in the
right place if needed by someone debugging, so just delete it.
Reported by: bryanv
Since we use --input-type binary these options are rather meaningless. Both
binutils and elftoolchain ignore the option in this case, but LLVM does not,
and instead strips all symbols from the output file, causing missing symbols at
run time if building with llvm-objcopy. Thus simply remove the options; the
linux module has never included them for building its VDSO (added in r283407),
but for some reason the original commit of linux64 (r283424) added them.
These should however eventually be changed to use template assembly files as is
now done for firmware and MFS_IMAGE.
Reviewed by: emaste, trasz
Differential Revision: https://reviews.freebsd.org/D27740
This is what amd64 calls the i386 Linux ABI in order to distinguish it
from the amd64 Linux ABI, and matches the nomenclature used for the
FreeBSD ABIs where they always have the size suffix in the name.
Reviewed by: trasz
Differential Revision: https://reviews.freebsd.org/D27647
Currently only amd64, i386 and powerpc build VirtIO modules, yet all other
architectures have at least one kernel configuration that includes the
transport drivers, and so they lack drivers for all the devices they don't
statically compile into the kernel. Instead, enable the build everywhere so all
architectures have the full set of device drivers available.
Reviewed by: bryanv (earlier version), imp (earlier version)
Differential Revision: https://reviews.freebsd.org/D28058
Rather than have every device register itself for both virtio_pci and
virtio_mmio, provide a VIRTIO_DRIVER_MODULE wrapper to declare both,
merge VIRTIO_SIMPLE_PNPTABLE with VIRTIO_SIMPLE_PNPINFO and make the
latter register for both buses. This also has the benefit of abstracting
away the available transports and their names.
Reviewed by: bryanv
Differential Revision: https://reviews.freebsd.org/D28073
We must check MagicValue not just Version before anything else, and then
we must check DeviceID and immediately abort if zero (and this must not
be an error).
Do all this when probing rather than at the start of attaching as that's
where this belongs, and provides a clear boundary between the device
detection and device initialisation parts of the specified driver
initialisation process. This also means we don't create empty device
instances for placeholder devices, reducing clutter on systems that
pre-allocate a large number, such as QEMU's AArch64 virt machine (which
provides 32).
Reviewed by: bryanv
Differential Revision: https://reviews.freebsd.org/D28070
Add separate sections for authentication algorithms, block ciphers,
stream ciphers, and AEAD algorithms. Describe properties commmon to
algorithms in each section to avoid duplication.
Use flat tables to list algorithm properties rather than nested
tables.
List implemented authentication algorithms.
Reviewed by: gbe (manpages)
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D27833
Pass the structure offset in arg2 instead of arg1. This avoids
having to undo the pointer arithmetic on arg1. Instead arg2 can
be used directly as an offset relative to the desired structure.
Reviewed by: cy
Obtained from: CheriBSD
Sponsored by: DARPA
Differential Revision: https://reviews.freebsd.org/D27961
Use refcount(9) for both pr_ref and pr_uref in struct prison. This
allows prisons to held and freed without requiring the prison mutex.
An exception to this is that dropping the last reference will still
lock the prison, to keep the guarantee that a locked prison remains
valid and alive (provided it was at the time it was locked).
Among other things, this honors the promise made in a comment in
crcopy(9), that it will not block, which hasn't been true for two
decades.
Define the maximum numbers of segments to allow for non-page alignment
at the beginning and end of a maxphys size transfer. Also set
ccb_pathinq.maxio consistent with maxphys.
Reviewed by: imp
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D28043
on success instead of 0 to match Linux.
Imprivata binary depends on this.
Submitted by: Shunchao Hu <ankohuu_outlook.com>
Reviewed by: wulf
Differential revision: https://reviews.freebsd.org/D28218
Many I2C "compatibility" mouse devices found on touchpads continue to
return last report data in sampling mode after touch has been ended.
That results in cursor drift. Filter out such a reports with comparing
content of current report with content of previous one.
Reported by: many
Tested by: omatsuda, gllb (github.com)
Obtained from: sysutils/iichid
There is a report that reading of surface/button switch feature report
causes SYN1B7D touchpad malfunction. As specs does not require it to
be readable assume that report usages have default value on attach and
last written value during operation. Do not apply default usage values
on attachment and resume.
While here fix manpage typos and add avg@ to copyright header.
Reported by: Jakob Alvermark <jakob_AT_alvermark_DOT_net>
Reviewed by: avg
Differential revision: https://reviews.freebsd.org/D28196
When userspace tries to access a special register that it doesn't have
access to the kernel receives an exception. On most cores this exception
has been observed to be the undefined instruction exception, however on
the Apple M1 under a QEMU based hypervisor it can be the MSR exception.
Handle this second case by also running the undefined exception handler
on these exceptions.
Sponsored by: Innovate UK
There is no need to keep multiple copies of the relocation code. The
amd64 code works on arm64 with a few small changes to relocation types.
Sponsored by: Innovate UK
Differential Revision: https://reviews.freebsd.org/D28213
This allows slightly more efficient opcode testing in-kernel. It is
transparent to userland, except to applications that sneakily submit
aio fsync or aio mlock operations via lio_listio, which has never been
documented, requires the use of deliberately undefined constants
(LIO_SYNC and LIO_MLOCK), and is arguably a bug.
Reviewed by: jhb
Differential Revision: https://reviews.freebsd.org/D27942
QinQ is better known by this name, so accept it as an alias
Reported-by: Mike Geiger
Reviewed-by: melifaro, hselasky, rpokala
MFC-with: 366917
Sponsored-by: Klara Inc.
Differential-Revision: https://reviews.freebsd.org/D28245
determine the length of the routing table buffer. As of 81728a538d
wpa_supplicant is started before the routing table has been populated
resulting in the length of zero to be returned. This causes
wpa_supplicant to loop endlessly. (The workaround is to kill and restart
wpa_supplicant as by the time it is restarted the routing table is
populated.)
(Personally, I was not able to reproduce this unless wlan0 was a member of
lagg0. However, others experienced this problem on standalone wlan0.)
PR: 252844
Submitted by: shu <ankohuu _ outlook.com>
Reported by: shu <ankohuu _ outlook.com>
Reviewed by: cy
X-MFC with: 81728a538d
Differential Revision: https://reviews.freebsd.org/D28249
Summary:
When using the base stack in conjunction with RACK, it appears that
infrequently, ++tp->t_dupacks is instantly larger than tcprexmtthresh.
This leaves the recover flightsize (sackhint.recover_fs) uninitialized,
leading to a div/0 panic.
Address this by properly initializing the variable just prior to first
use, if it is not properly initialized.
In order to prevent stale information from a prior recovery to
negatively impact the PRR calculations in this event, also clear
recover_fs once loss recovery is finished.
Finally, improve the readability of the initialization of recover_fs
when t_dupacks == tcprexmtthresh by adjusting the indentation and
using the max(1, snd_nxt - snd_una) macro.
Reviewers: rrs, kbowling, tuexen, jtl, #transport, gnn!, jmg, manu, #manpages
Reviewed By: rrs, kbowling, #transport
Subscribers: bdrewery, andrew, rpokala, ae, emaste, bz, bcran, #linuxkpi, imp, melifaro
Differential Revision: https://reviews.freebsd.org/D28114
