This fixes a panic during configuration if the tx channel of a port
isn't the same as its port id.
Reported by: Fabrice Bruel
MFC after: 1 week
Sponsored by: Chelsio Communications
Update the diff to include other missing sysctl types found in sysctl.h.
Some of these sysctls are already documented in other pages (e.g counter(9)
and ZONE(9)), but they should at least be mentioned here for completeness.
This patch now documents all of the following:
- SYSCTL_BOOL/SYSCTL_ADD_BOOL
- SYSCTL_COUNTER_U64/SYSCTL_ADD_COUNTER_U64
- SYSCTL_COUNTER_U64_ARRAY/SYSCTL_ADD_COUNTER_U64_ARRAY
- SYSCTL_SBINTIME_MSEC/SYSCTL_ADD_SBINTIME_MSEC
- SYSCTL_SBINTIME_USEC/SYSCTL_ADD_SBINTIME_USEC
- SYSCTL_UMA_CUR/SYSCTL_ADD_UMA_CUR
- SYSCTL_UMA_MAX/SYSCTL_ADD_UMA_MAX
Submitted by: mhorne063_gmail.com
Reviewed by: bcr, hselasky
Approved by: bcr (doc), hselasky (src)
Approved by: krion (mentor, implicit), mat (mentor, implicit)
Differential Revision: https://reviews.freebsd.org/D19272
If an interrupt fires while writing the cmp entry we may have a partial
entry. Work around this by using atomic_cmpset to set the new index. If it
fails we need to set the previous index value and try again as the entry
may be in an inconsistent state.
This fixes messages similar to the following from syzkaller:
bad comp 224 type 2163727253
Reviewed by: tuexen
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D19287
in the delayed attach to use early returns, which allows reducing the level
of indentation. So all in all, what looks like a lot of changes is really
no change in behavior, mostly just moving whitespace around.
arprequest() is a void function and in case of error we simply
return without any feedback. In case of any local operation
or *if_output() failing no feedback is send up the stack for the
packet which triggered the arp request to be sent.
arpresolve_full() has three pre-canned possible errors returned
(if we have not yet sent enough arp requests or if we tried
often enough without success) otherwise "no error" is returned.
Make arprequest() an "internal" function arprequest_internal() which
does return a possible error to the caller. Preserve arprequest()
as a void wrapper function for external consumers.
In arpresolve_full() add an extra error checking. Use the
arprequest_internal() function and only return an error if non
of the three ones (mentioend above) are already set.
This will return possible errors all the way up the stack and
allows functions and programs to react on the send errors rather
than leaving them in the dark. Also they might get more detailed
feedback of why packets cannot be sent and they will receive it
quicker.
Reviewed by: karels, hselasky
Differential Revision: https://reviews.freebsd.org/D18904
[X86] Fix tls variable lowering issue with large code model
Summary:
The problem here is the lowering for tls variable. Below is the DAG
for the code. SelectionDAG has 11 nodes:
t0: ch = EntryToken
t8: i64,ch = load<(load 8 from `i8 addrspace(257)* null`,
addrspace 257)> t0, Constant:i64<0>, undef:i64
t10: i64 = X86ISD::WrapperRIP TargetGlobalTLSAddress:i64<i32*
@x> 0 [TF=10]
t11: i64,ch = load<(load 8 from got)> t0, t10, undef:i64
t12: i64 = add t8, t11
t4: i32,ch = load<(dereferenceable load 4 from @x)> t0, t12,
undef:i64
t6: ch = CopyToReg t0, Register:i32 %0, t4
And when mcmodel is large, below instruction can NOT be folded.
t10: i64 = X86ISD::WrapperRIP TargetGlobalTLSAddress:i64<i32* @x> 0
[TF=10]
t11: i64,ch = load<(load 8 from got)> t0, t10, undef:i64
So "t11: i64,ch = load<(load 8 from got)> t0, t10, undef:i64" is
lowered to " Morphed node: t11: i64,ch = MOV64rm<Mem:(load 8 from
got)> t10, TargetConstant:i8<1>, Register:i64 $noreg,
TargetConstant:i32<0>, Register:i32 $noreg, t0"
When llvm start to lower "t10: i64 = X86ISD::WrapperRIP
TargetGlobalTLSAddress:i64<i32* @x> 0 [TF=10]", it fails.
The patch is to fold the load and X86ISD::WrapperRIP.
Fixes PR26906
Patch by LuoYuanke
Reviewers: craig.topper, rnk, annita.zhang, wxiao3
Reviewed By: rnk
Subscribers: llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D58336
This should fix "fatal error: error in backend: Cannot select" messages
when compiling <ctype.h> functions using -mcmodel=large.
Reported by: phk
PR: 233143
MFC after: 3 days
The pipefail option allows checking the exit status of all commands in a
pipeline more easily, at a limited cost of complexity in sh itself. It works
similarly to the option in bash, ksh93 and mksh.
Like ksh93 and unlike bash and mksh, the state of the option is saved when a
pipeline is started. Therefore, even in the case of commands like
A | B &
a later change of the option does not change the exit status, the same way
(A | B) &
works.
Since SIGPIPE is not handled specially, more work in the script is required
for a proper exit status for pipelines containing commands such as head that
may terminate successfully without reading all input. This can be something
like
(
cmd1
r=$?
if [ "$r" -gt 128 ] && [ "$(kill -l "$r")" = PIPE ]; then
exit 0
else
exit "$r"
fi
) | head
PR: 224270
Relnotes: yes
A big security advantage of Wayland is not allowing applications to read
input devices all the time. Having /dev/input/* accessible to the user
account subverts this advantage.
libudev-devd was opening the evdev devices to detect their types (mouse,
keyboard, touchpad, etc). This don't work if /dev/input/* is inaccessible.
With the kernel exposing this information as sysctls (kern.evdev.input.*),
we can work w/o /dev/input/* access, preserving the Wayland security model.
Submitted by: Greg V <greg@unrelenting.technology>
Reviewed by: wulf, imp
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D18694
Because fetching a counter is a rather expansive function we should use
counter_u64_fetch() in pf_state_expires() only when necessary. A "rdr
pass" rule should not cause more effort than separate "rdr" and "pass"
rules. For rules with adaptive timeout values the call of
counter_u64_fetch() should be accepted, but otherwise not.
From the man page:
The adaptive timeout values can be defined both globally and for
each rule. When used on a per-rule basis, the values relate to the
number of states created by the rule, otherwise to the total number
of states.
This handling of adaptive timeouts is done in pf_state_expires(). The
calculation needs three values: start, end and states.
1. Normal rules "pass .." without adaptive setting meaning "start = 0"
runs in the else-section and therefore takes "start" and "end" from
the global default settings and sets "states" to pf_status.states
(= total number of states).
2. Special rules like
"pass .. keep state (adaptive.start 500 adaptive.end 1000)"
have start != 0, run in the if-section and take "start" and "end"
from the rule and set "states" to the number of states created by
their rule using counter_u64_fetch().
Thats all ok, but there is a third case without special handling in the
above code snippet:
3. All "rdr/nat pass .." statements use together the pf_default_rule.
Therefore we have "start != 0" in this case and we run the
if-section but we better should run the else-section in this case and
do not fetch the counter of the pf_default_rule but take the total
number of states.
Submitted by: Andreas Longwitz <longwitz@incore.de>
MFC after: 2 weeks
- Collapse original_sc and serializing_sc fields into one, since they
are never used simultanously, we have only one local I/O and one remote.
- Move remote_sglist and local_sglist fields into CTL_PRIV_BACKEND,
since they are used only on Originating SC in XFER mode, where requests
don't ever reach backends, so we can reuse backend's private storage.
MFC after: 2 weeks
Sponsored by: iXsystems, Inc.
MTU if we've set it once and there were no changes on the DHCP server
side since the last refresh. This is consistent I believe with how dhclient
handles other settings like IP address, mask etc.
Approved by: cem, eugen
Differential Revision: https://reviews.freebsd.org/D18546
add gcov support and export results as files in debugfs
Reviewed by: hps@
MFC after: 1 week
Sponsored by: iX Systems
Differential Revision: https://reviews.freebsd.org/D19260
- offsets can be negative, loff_t needs to be signed, it also simplifies
interop with the rest of the code base to use off_t than the actual linux
definition "long long"
- don't rely on the defining "file" to "linux_file" in interface definitions
as that causes heartache with includes
Reviewed by: hps@
MFC after: 1 week
Sponsored by: iX Systems
Differential Revision: https://reviews.freebsd.org/D19274
for struct ip_mreq remains in place.
The struct ip_mreqn is Linux extension to classic BSD multicast API. It
has extra field allowing to specify the interface index explicitly. In
Linux it used as argument for IP_MULTICAST_IF and IP_ADD_MEMBERSHIP.
FreeBSD kernel also declares this structure and supports it as argument
to IP_MULTICAST_IF since r170613. So, we have structure declared but
not fully supported, this confused third party application configure
scripts.
Code handling IP_ADD_MEMBERSHIP was mixed together with code for
IP_ADD_SOURCE_MEMBERSHIP. Bringing legacy and new structure support
into the mess would made the "argument switcharoo" intolerable, so
code was separated into its own switch case clause.
MFC after: 3 months
Differential Revision: https://reviews.freebsd.org/D19276
It was not only disabled for quite a while, but also appeared to be broken
at r325517, when maximum number of ports was made configurable.
MFC after: 1 week
Some consumers may be loosely coupled with the lkpi.
This allows them to call linux_alloc_current without
having a static dependency.
Reviewed by: hps@
MFC after: 1 week
Sponsored by: iX Systems
Differential Revision: https://reviews.freebsd.org/D19257
Add support for simple NVDIMM v1.2 namespaces from the UEFI
version 2.7 specification. The combination of NVDIMM regions and
labels can lead to a wide variety of namespace layouts. Here we
support a simple subset of namespaces where each NVDIMM SPA range
is composed of a single region per member dimm.
Submitted by: D Scott Phillips <d.scott.phillips@intel.com>
Discussed with: kib
MFC after: 1 week
Sponsored by: Intel Corporation
Differential Revision: https://reviews.freebsd.org/D18736
When attaching to NVDIMM devices, read and verify the namespace
labels from the special namespace label storage area. A later
change will expose NVDIMM namespaces derived from this label data.
Submitted by: D Scott Phillips <d.scott.phillips@intel.com>
Discussed with: kib
MFC after: 1 week
Sponsored by: Intel Corporation
Differential Revision: https://reviews.freebsd.org/D18735
Separate code for exposing a device backed by a system physical
address range away from the NVDIMM spa code. This will allow a
future patch to add support for NVDIMM namespaces while using the
same device code.
Submitted by: D Scott Phillips <d.scott.phillips@intel.com>
Reviewed by: bwidawsk
MFC after: 1 week
Sponsored by: Intel Corporation
Differential Revision: https://reviews.freebsd.org/D18736
A pointer is first tested for NULL. If non-NULL, another pointer is
set equal to the first. The second pointer is then checked for NULL
and an error path taken if so. This second test and the associated
path is dead code as the pointer value, having just been checked for
NULL, cannot be NULL at this point. Remove the dead code.
Reported by: Coverity
Reviewed by: daniel.william.ryan_gmail.com, vangyzen
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D19165
- CID 1394815, CID 1305673: Dereference before null check - memory was
allocated and the allocation checked for NULL with a call to errx()
if it failed. Code below that was guaranteed that the pointer was
non-NULL, but there was another check for NULL at the exit of the
function (after the memory had already been referenced). Eliminate
the useless NULL check.
- CID 1007452: Resource leak - Storage intended to be allocated and
returned to the caller was never freed. This was the result of a
regression in the function signature introduced in r208648 (2010)
(thanks for that find, @cem!). Fixed by altering the function
signature and passing the allocated memory to the caller as
intended. This also fixes PR158794.
- CID 1008620: Logically dead code in newsyslog.c - This was a direct
result of CID 1007452. Since the memory allocated as described there
was not returned to the caller, a subsequent check for the memory
having been allocated was dead code. Returning the memory
re-animates the code that is the subject of this CID.
- CID 1006131: Unused value - in parsing a configuration file, a
pointer to the end of the last field was saved, but not used after
that. Rewrite to use the pointer value. This could have been fixed
by avoiding the assignment altogether, but this solutions more
closely follows the pattern used in the preceding code.
PR: 158794
Reported by: Coverity, Ken-ichi EZURA <k.ezura@gmail.com> (PR158794)
Reviewed by: cem, markj
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D19105
Move from using a linker set to a constructor function that's
called. This simplifies the code and is slightly more obvious. We now
keep a list of page decoders rather than having an array we managed
before. Commands will move to something similar in the future.
Reviewed by: jhb@
Differential Revision: https://reviews.freebsd.org/D19275
It was pointed out that a couple of the "memory leak" CIDs that I
fixed were arguably Coverity errors rather than errors in the
newsyslog code and the cure was worse than the disease. Revert both
changes. The first change, which included fixes for other Coverity
errors, will be re-worked to omit the troublesome changes and then
re-committed with the remaining fixes.
Reported by: bde
Sponsored by: Dell EMC Isilon
this one should also work on amd64 and sparc64.
LINT was broken in r312910 with the removal of pc98 support, by changing
the pathname in UKBD_DFLT_KEYBAP from a removed pc98 file to a nonexistent
file.
There are many bugs nearby. Some are:
- the error is not properly detected and handled by make(1), because
kbdcontrol(8) exits with status 0 after failing to find the keymap file
- UKBD_DFLT_KEYBAP is supposed to be MI, and is in MI NOTES to try enforce
this, but 5 out of 8 arches don't support it
- LINT seems to have been broken by this in only 7 out of 8 arches. mips
breaks test coverage instead, by killing this option in its MD NOTES.
arm kills ukbd but that is not enough to configure an unsupported option
used only by ukbd.
Add or fix options to control static and dynamic configuration. Keep
the default of scteken, but default to statically configuring all available
emulators (now 3 instead of 1).
The dumb emulator is almost usable. libedit and libreadline handle
dumb terminals perfectly for at least shell history. less(1) works
as well as possible except on exit. But curses programs make messes.
The dumb emulator has strange color support, with 2 dumb colors for
normal output but fancy colorization for the cursor, mouse pointer and
(with a non-dumb initial emulator) for low-level console output.
Using the sc emulator instead of the default of scteken fixes at least
the following bugs:
- NUL is a printing character in cons25 but not in teken
- teken doesn't support fixed colors for "reverse" video.
- The best versions of sc are about 10 times faster than scteken (for
printing to the frame buffer). This version is only about 5 times
faster.
Fix configuration features:
- make SC_DFLT_TERM (for setting the initial emulator) a normal option.
Add configuration features:
- negative options SC_NO_TERM_* for omitting emulators in the static config.
Modules for emulators might work, but I don't know of any
- vidcontrol -e shows the available emulators
- vidcontrol -E <emulator> sets the active emulator.
fasttrap hooks the userspace breakpoint handler; the hook looks up the
breakpoint address in a hash table of tracepoints. It is possible for
the tracepoint to be removed by a different thread in between the
breakpoint trap and the hash table lookup, in which case SIGTRAP gets
delivered to the target process. Fix the problem by adding a
per-process generation counter that gets incremented when a tracepoint
belonging to that process is removed. Then, when a lookup fails, the
trapping instruction is restarted if the thread's counter doesn't match
that of the process.
Reviewed by: cem
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D19273
Specifically, I put the new option line in the wrong place, and then fixed
up the rest without realizing it. This puts the usage statement back to
what it was, with an additional line for the new -V option.
Reported by: mav
Sponsored by: iXsystems Inc.
An upcoming bug fix requires 64-bit atomics, which aren't implemented on
powerpc. The powerpc port of fasttrap is incomplete anyway and doesn't
get loaded by dtraceall.ko on powerpc because of a missing dependency;
it's presumed that it's effectively unused.
Discussed with: jhibbits
MFC after: 2 weeks
OpenSSH-portable commits:
check in scp client that filenames sent during remote->local directory
copies satisfy the wildcard specified by the user.
This checking provides some protection against a malicious server
sending unexpected filenames, but it comes at a risk of rejecting wanted
files due to differences between client and server wildcard expansion rules.
For this reason, this also adds a new -T flag to disable the check.
reported by Harry Sintonen
fix approach suggested by markus@;
has been in snaps for ~1wk courtesy deraadt@
OpenBSD-Commit-ID: 00f44b50d2be8e321973f3c6d014260f8f7a8eda
Minor patch conflict (getopt) resolved.
Obtained from: OpenSSH-portable 391ffc4b9d31fa1f4ad566499fef9176ff8a07dc
scp: add -T to usage();
OpenBSD-Commit-ID: a7ae14d9436c64e1bd05022329187ea3a0ce1899
Obtained from: OpenSSH-portable 2c21b75a7be6ebdcbceaebb43157c48dbb36f3d8
PR: 234965
Approved by: des
MFC after: 3 days
Obtained from: OpenSSH-portable 391ffc4b9d, 2c21b75a7b
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D19076
First remove ifdefs of the unsupported option SC_DUMB_TERMINAL which
prevented building using both in the same kernel and broke regression
tests. This option will be replaced by per-emulator supported options.
The dumb emulator rotted with KSE in r83366, but usually compiled since
it is ifdefed to nothing unless SC_DUMB_TERMINAL is defined. The type
of an unused function parameter changed.
Both emulators rotted when 2 new methods were added while the emulators
were removed. Only null methods are needed, but null function pointers
give panics instead.
The wildcard in the default for the unsupported option SC_DFLT_TERM
never really worked. It tends to prefer the dumb emulator when multiple
emulators are configured. Change it to prefer scteken for compatibility.
