Our kern_sigtimedwait() calculates absolute sleep timo value as 'uptime+timeout'.
So, when the user specifies a big timeout value (LONG_MAX), the calculated
timo can be less the the current uptime value.
In that case kern_sigtimedwait() returns EAGAIN instead of EINTR, if
unblocked signal was caught.
While here switch to a high-precision sleep method.
Reviewed by: mav, kib
In collaboration with: mav
Differential revision: https://reviews.freebsd.org/D34981
MFC after: 2 weeks
Created a couple of helpers to send signals to the specific thread or to
the whole process. Use helpers in the corresponding syscalls.
This fixes the confusion where a signal destined for a whole process
was sent to a specific thread and vice versa.
There is an exclusion for the linux_kill() syscall that takes a pid
argument and should send a signal to the whole process, but I know
at least one example where kill() takes tid.
MFC after: 2 weeks
wasn't default
Since vte_reset changes register value to MDCSC_DEFAULT value, which may not
be the original value, thus causing some phy registers read failures.
Restoring VTE_MDCSC value to original after reset solves the link state
flapping issue.
Thanks to jhb ("the code looks ok") for his review.
Reviewed by: jhb
Obtained from: NetBSD via Andrius V
Differential Revision: https://reviews.freebsd.org/D34956
The contract with the lower layers is that once ENXIO is reported, all
further I/O to the device is not possible. This is reported when the
device departs for good or changes in some material manner out from
underneath the system. Since the lower layers terminate all pending I/O
when this is detected with ENXIO, reporting more than one provides no
extra value. ENXIO suppression done with atomics due to race described
in e8827f4094. It's on the error path and a rare event, so this won't affect
performance.
Sponsored by: Netflix
Reviewed by: mckusick, kib
Differential Revision: https://reviews.freebsd.org/D35034
On the 0 -> 1 transition of sc_enxio_active, report that we're doing
this. This is a rare, but interesting, event. Convert to using atomics
to set this field to prevent a rare race:
In CAM, when we invalidate a device, one thread (T1) will start the
process in error processing called from *dadone
(cam_periph_error). This routine will queue work to xpt_async_td
(T2) and indicate to *dadone to call biodone(ENXIO) for the bio. T2
wakes up and basically waits to acquire the periph lock. T2 will do
so when T1 drops the periph lock just before T1's call to
biodone. T2 acquires the lock and calls biodone(ENXIO) on all
pending bios. These two threads will race and we could lose the
printf or get two in rare cases. Since we only touch sc_enxio_active
in an error path that's infrequent, the extra atomic traffic will be
rare but will ensure robustness.
Sponsored by: Netflix
Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D35037
The BIO_SPEEDUP_WRITE and BIO_SPEEDUP_TRIM bits are part of the flags
word, so print them as such.
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D35035
As an example:
printf 'We don=27t know what to do with other=20worlds.=0D=0A' \
| bintrans qp -u
Differential Revision: https://reviews.freebsd.org/D34933
Reviewed by: debdrup (manpage)
Fix a comment that was left over from the orignial
implementation. Explain how pending transactions in hardware are
completed/aborted in the SIM prior to ndacleanup being called.
Sponsored by: Netflix
With the upgrade to OpenSSH 6.7p1 in commit a0ee8cc636 we replaced
WITH_OPENSSL ifdefs with an OPENSSL_VERSION macro, later changing it
to OPENSSL_VERSION_STRING.
A few years later OpenSSH made an equivalent change (with a different
macro name), in commit 4d94b031ff88. Switch to the macro name they
chose.
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Latest dirdeps.mk is far more efficient when generating
DIRDEPS_CACHE.
Update dirdeps-options.mk to allow DEP_RELDIR to factor
into option processing. This is not very interesting if all
options are global.
After we moved to git $FreeBSD$ is no longer expanded and serves no
purpose. Remove them from OpenSSH to reduce diffs against upstream.
Sponsored by: The FreeBSD Foundation
When using NIC TLS RX, packets that are dropped and retransmitted are
not decrypted by the NIC but are passed along as-is. As a result, a
received TLS record might contain a mix of encrypted and decrypted
data. If this occurs, the already-decrypted data needs to be
re-encrypted so that the resulting record can then be decrypted
normally.
Add support for this for sessions using AES-GCM with TLS 1.2 or TLS
1.3. For the recrypt operation, allocate a temporary buffer and
encrypt the the payload portion of the TLS record with AES-CTR with an
initial IV constructed from the AES-GCM nonce. Then fixup the
original mbuf chain by copying the results from the temporary buffer
back into the original mbufs for any mbufs containing decrypted data.
Once it has been recrypted, the mbuf chain can then be decrypted via
the normal software decryption path.
Co-authored by: Hans Petter Selasky <hselasky@FreeBSD.org>
Reviewed by: hselasky
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D35012
Previously this used a temporary nonce[] buffer. The decrypt hook for
TLS 1.3 as well as the hooks for TLS 1.2 already constructed the IV
directly in crp.crp_iv.
Reviewed by: hselasky
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D35027
Instead, create a switch structure private to ktls_ocf.c and store a
pointer to the switch in the ocf_session. This will permit adding an
additional function pointer needed for NIC TLS RX without further
bloating ktls_session.
Reviewed by: hselasky
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D35011
o ignore '.POSIX:' if not in first non-comment line
of Makefile as specified by POSIX.
add unit-tests for above.
Merge commit '92bfae0e6bd53a7a0d6fe55e70a916d86cf26e8b'
742e7210d0 changed the prototype of udp_tun_func_t(). Bump
__FreeBSD_version so that external modules can #ifdef for it as
required.
PR: 263297
Sponsored by: Rubicon Communications, LLC ("Netgate")
Similar to ipfw rule timestamps, these timestamps internally are
uint32_t snaps of the system time in seconds. The timestamp is CPU local
and updated each time a rule or a state associated with a rule or state
is matched.
Reviewed by: kp
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D34970
When no interface is specified results in a syntax error in the rc
script. Only execute poststart when an interface has been specified.
PR: 263358
Submitted by: markj
Reported by: Joshua Kinard <freebsd@kumba.dev>
Fixes: 0da2c91e64
MFC after: 3 days
Implement the same filter feature we implemented for UDP over IPv6 in
742e7210d. This was missed in that commit.
Pointed out by: markj
Sponsored by: Rubicon Communications, LLC ("Netgate")
Some AMD EPYC VCPUs generated boot message of the type:
pci4: <unknown> at device 0.0 (no driver attached)
These are displayed for device class 0x13 devices, e.g.:
none8@pci0:130:0:0: class=0x130000 rev=0x00 hdr=0x00 vendor=0x1022 \
device=0x148a subvendor=0x1022 subdevice=0x148a
vendor = 'Advanced Micro Devices, Inc. [AMD]'
device = 'Starship/Matisse PCIe Dummy Function'
class = non-essential instrumentation
Since these devices serve no purpose (no driver attaches) I have
enabled the reporting of suich devices only for verbose boots (a
diversion from the patch provided in the PR).
A verbose boot will now display such devices as:
pci4: <non-essential instrumentation> at device 0.0 (no driver attached)
PR: 263469
Reported by: jfc@mit.edu (John F. Carr)
MFC after: 1 week
This took an embarrasingly long time to find.
The state changes for a radio with a STA /and/ AP VAP gets a bit messy.
The AP maps are marked as waiting, waiting for the STA AP to find a
channel to use before the AP VAPs become active.
However, the code path that clears the OACTIVE flag on a VAP only runs
during a successful run of ieee80211_newstate_cb().
So here is how it goes:
* the STA VAP goes down and needs to scan;
* the AP vap goes RUN->INIT; but it doesn't YET call ieee80211_newstate_cb();
* meanwhile - a send on the AP VAP causes the VAP to set the OACTIVE flag here;
* then the STA VAP finishes scan and goes to RUN;
* which will call wakeupwaiting() as part of the STA VAP transition to RUN;
* .. then the AP VAP goes INIT->RUN directly via a call to hostap_newstate
in wakeupwaiting rather than it being through the deferred path;
* /then/ the ieee80211_newstate_cb() is called, but it sees the state go
RUN->RUN;
* .. which results in the OACTIVE flag never being cleared.
This clears the OACTIVE flag when a VAP transitions RUN->RUN; the
driver layer or net80211 layer can set it if required in a subsequent
transmit.
Differential Revision: https://reviews.freebsd.org/D34920
Reviewed by: bz
The other QL_DPRINT*() invocations in qls_init_hw_if() all used the
expanded form instead of the local variable. The module build always
defines QL_DBG in CFLAGS so doesn't trip over this, but adding qlxge
to a kernel config builds without QL_DBG.
Reported by: olivier
This entails various changes to make this driver more "modern"
(new-bus vs pre-new-bus) using device_log() and device_printf() rather
than psm%d. It also fixes the device_busy/unbusy calls to use sc->dev
directly rather than looking the device_t up via the devclass and
unit.
Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D35006
This mirrors dmu_read_impl(), zeroing out the tail end of the buffer and
clipping the read to what's contained by the block that exists.
This fixes an issue that arose during the 13.1 release process; in
13.1-RC1 and later, setting up GELI+ZFS will result in a failure to
boot. The culprit is this, which causes us to fail to load geom_eli.ko
as there's a residual portion after the single datablk that should be
zeroed out.
PR: 263407
Reviewed by: tsoome
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D35019
