If you run "ifconfig lagg0 destroy" and "ifconfig lagg0" at the same time a
page fault may result. The first process will destroy ifp->if_lagg in
lagg_clone_destroy (called by if_clone_destroy). Then the second process
will observe that ifp->if_lagg is NULL at the top of lagg_port_ioctl and
goto fallback: where it will promptly dereference ifp->if_lagg anyway.
The solution is to repeat the NULL check for ifp->if_lagg
MFC after: 4 weeks
Sponsored by: Spectra Logic Corp
Differential Revision: https://reviews.freebsd.org/D8512
Make st_data part of spigen_transfer optional by letting pass zero length
and NULL pointer. SPI controller drivers handle this case fine.
MFC after: 1 week
This man page was removed in r225583 when cc.4 was renamed to mod_cc.4
With reintroduction of cc.4 "make installworld; make delete-old" was
no longer convergent.
Reported by: Trond Endrestøl
Reviewed by: np, matthew
Approved by: np, matthew (mentor)
Differential Revision: https://reviews.freebsd.org/D8816
Apparently stdatomic.h implementation for gcc 4.2 on sparc64 does not
work properly. This effectively reverts r251803.
Reported and tested by: lidl
Discussed with: ed
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
memory-mapped devices that are normally PCIe drives. Devices can then use
the existing pci_get_class, etc. accessors to query this data.
The ivar values are different enough from the existing ACPI and ISA values
to not conflict.
Reviewed by: jhb
Obtained from: ABT Systems Ltd
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D8721
Replace them with a default handler that returns devmap_lastaddr.
Reviewed by: mmel
Sponsored by: ABT Systems Ltd
Differential Revision: https://reviews.freebsd.org/D8806
- Disable features that are not supported or not used on FreeBSD.
- Increase the RSS table slice per interface.
- Increase the share of the TCAM reserved for filtering.
MFH: 2 weeks
Sponsored by: Chelsio Communications
When importing for r309309, as part of conflict resolution, too much extra was
removed, resulting in bad disassembly for branches. Correct this.
Also re-apply the 0->NULL change from r298052.
X-MFC-With: r309309
This is a work in progress and some of this stuff may change;
but hopefully I'm laying down enough stuff and space in fields
to allow it to grow without another major recompile.
We'll see!
* Add a net80211 PHY type for VHT 2G and VHT 5G.
Note - yes, VHT is supposed to be for 5GHZ, however some vendors
(*cough* most of them) support some subset of VHT rate support
in 2GHz. No - not 80MHz wide channels, but at least some MCS8-9
support, maybe some beamforming, and maybe some longer A-MPDU
aggregates. I don't want to even think about MU-MIMO on 2GHz.
* Add an ifmedia placeholder type for VHT rates.
* Add channel flags for VHT, VHT20/40U/40D/80/80+80/160
* Add channel macros for the above
* Add ieee80211_channel fields for the VHT information and flags,
along with some padding (so this struct definitely grows.)
* Add a phy type flag for VHT - 'v'
* Bump the number of channels to a much higher amount - until we get
something like the linux mac80211 chanctx abstraction (where the
stack provides a current channel configuration via callbacks,
versus the driver ever checking ic->ic_curchan or similar) we'll
have to populate VHT+HT combinations.
Eg, there'll likely be a full set of duplicate VHT20/40 channels to match
HT channels. There will also be a full set of duplicate VHT80 channels -
note that for VHT80, its assumed you're doing VHT40 as a base, so we
don't need a duplicate of VHT80 + 20MHz only primary channels, only
a duplicate of all the VHT40 combinations.
I don't want to think about VHT80+80 or VHT160 for now - and I won't,
as the current device I'm doing 11ac bringup on (QCA9880) only does
VHT80.
I'll likely revisit the channel configuration and scanning related
stuff after I get VHT20/40 up.
* Add vht flags and the basic MCS rate setup to ieee80211com, ieee80211vap
and ieee80211_node in preparation for 11ac configuration.
There is zero code that uses this right now.
* Whilst here, add some more placeholders in case I need to extend
out things by some uint32_t flag sized fields. Hopefully I won't!
What I haven't yet done:
* any of the code that uses this
* any of the beamforming related fields
* any of the MU-MIMO fields required for STA/AP operation
* any of the IE fields in beacon frame / probe request/response handling
and the calculations required for shifting beacon contents around
when the TIM grows/shrinks
This will require a full rebuild of net80211 related programs -
ifconfig, hostapd, wpa_supplicant.
This takes the usual shortcut of only sandboxing the last input file.
It's a first cut and this program will be easy to adapt to sandbox all
files in the future.
iconv(1) has been changed to only open the conversion descriptor once,
since the input and output encodings are fixed over all inputs.
Instead, the descriptor is simply reset after each use (documented in
iconv(3) API).
Reviewed by: no one, unfortunately
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D7917
For now, only enter the sandbox for the last file processed (including
stdin for zero-argument mode).
Sandboxing all inputs will require a little restructuring of the
program.
Feedback by: emaste@ (earlier versions)
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D7915
We restrict the (optional) input file and output files. It would be
nice to restrict the KVM files, but that's up to libkvm.
We wait until after kvm_nlist() is invoked to cap_enter() because
kldsym() isn't supported in the Capsicum sandbox.
Feedback from: emaste@ (earlier versions)
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D7921
Separate dataset opening from reading/parsing. The number of input
files is already capped to a small number, so just open all input files
before sandboxing.
Feedback from: allanjude@ (earlier version), emaste@ (earlier version)
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D7925
The restriction here is pretty late and pretty minimal. We need a lot
of authority to open password databases, and don't do much after that
point.
Feedback from: lifanov at mail.lifanov.com (earlier version), emaste (earlier version)
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D7988
This is a direct port of the kernel %b format.
I'm unclear on if (more) non-portable printf extensions will be a
problem. I think it's desirable to have userspace formats include all
kernel formats, but there may be competing goals I'm not aware of.
Reviewed by: no one, unfortunately
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D8426
Needed for 'readelf -l' of extended phnum files. (Parity with GNU
binutils.)
Reviewed by: no one, unfortunately
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D8703
Extended numbering is used for any of these fields overflowing.
Reviewed by: emaste@
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D8701
Add a helper routine for opening a directory that is restricted to being
used for opening relative files as stdio streams.
I think this will really help basic adaptation of multi-file programs to
Capsicum. Rather than having each program initialize a rights object and
ioctl/fcntl arrays for their root fd for relative opens, consolidate in the
logical place.
Reviewed by: oshogbo@
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D8743
Initialize l_sec_contents to make sure that free(l_sec_contents) is called
on valid pointers.
Obtained from: OpenBSD (partial CVS rev 1.18)
MFC after: 5 days
The kernel builds reproducibly, except for the time, date, user, and
hostname baked into the kernel (reported at startup and via the
kern.version sysctl for uname). Add a build knob to disable the
inclusion of this metadata.
Reviewed by: jhb
MFC after: 1 month
Relnotes: Yes
Sponsored by: Reproducible Builds World Summit 2, Berlin
Differential Revision: https://reviews.freebsd.org/D8809
Unlike UFS or TMPFS, ZFS sets uarch automatically whenever a file is
updated. The test must explicitly clear uarch to be portable across
filesystems. Also, it doesn't need to run as root.
PR: 215179
MFC after: 4 weeks
Sponsored by: Spectra Logic Corp
Differential Revision: https://reviews.freebsd.org/D8741
Build metadata (username, hostname, etc.) prevents the FreeBSD kernel
from building reproducibly. Add an option to disable inclusion of that
metadata but retain the release information and SVN/git VCS details.
See https://reproducible-builds.org/ for additional background.
Reviewed by: bapt
Obtained from: NetBSD
MFC after: 1 month
Sponsored by: Reproducible Builds World Summit 2, Berlin
Differential Revision: https://reviews.freebsd.org/D4347
This paves way to implement VDSO for the enlightened time counter.
Reviewed by: kib
MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D8768
