One of the error descriptions referred to permissions; in context the
meaning was probably clear, but the prot values are properly called
protections.
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
The service handler for fileargs_open() tries to pre-open multiple files
and pass descriptors for each back to the sandboxed process in a single
message. This is to amortize the cost of round-trips between the two
processes.
The service process adds a "cache" nvlist to the reply to "open",
containing file descriptors for pre-opened files. However, when adding
that nvlist to the reply, it was making a copy, effectively leaking the
cached descriptors.
While here, fix spelling in a local variable name.
PR: 241226
Reviewed by: oshogbo
MFC after: 3 days
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D25095
Because the install location was hardcoded in the Makefile as
/usr/lib/libxo/encoder, the lib32 version was installed over the native
version. Replace /usr/lib with ${LIBDIR}.
Also define SHLIB_NAME instead of LIB + FILES. This prevents building a
static library.
MFC after: 2 weeks
r316063 installed pf's embedded libevent as a private lib, with headers
in /usr/include/private/event. Unfortunately we also have a copy of
libevent v2 included in ntp, which needed to be updated for compatibility
with OpenSSL 1.1.
As unadorned 'libevent' generally refers to libevent v2, be explicit that
this one is libevent v1.
Reviewed by: vangyzen (earlier)
Differential Revision: https://reviews.freebsd.org/D17275
The revision caused libprocstat to have two undefined symbols:
- __start_set_pcpu
- __stop_set_pcpu
probably because of __GLOBL() used in sys/pcpu.h under _KERNEL.
The symbols are not accessed by anything and the linker in base does not
complain about them, but some ports are failing to build.
Hack around the problem by providing definitions for those symbols.
Probably there is a better solution, but I could not think of it yet.
Reported by: zeising
MFC after: 3 days
X-MFC with: r361363
Sponsored by: Panzura
As usual, the full release notes are found on Github:
https://github.com/facebook/zstd/releases/tag/v1.4.5
Notable changes include:
* Improved decompress performance on amd64 and arm (5-10%
and 15-50%, respectively).
* '--patch-from' zstd(1) CLI option, which provides something like a very fast
version of bspatch(1) with slightly worse compression. See release notes.
In this update, I dropped the 3-year old -O0 workaround for an LLVM ARM bug;
the bug was fixed in LLVM SVN in 2017, but we didn't remove this workaround
from our tree until now.
MFC after: I won't, but feel free
Relnotes: yes
First of all, znode_phys_t hasn't been used for storing file attributes
for a long time now. Modern ZFS versions use a System Attribute table
with a flexible layout. But more importantly all the required
information is available in znode_t itself.
It's not easy to include zfs_znode.h in userland without breaking code
because the most interesting parts of the header are kernel-only. And
hardcoding field offsets is too fragile. So, I created a new
compilation unit that includes zfs_znode.h using some mild kludges to
get it and its dependencies to compile in userland. The compilation
unit exports interesting field offsets and does not have any other code.
PR: 194117
Reviewed by: markj
MFC after: 2 weeks
Sponsored by: Panzura
Differential Revision: https://reviews.freebsd.org/D24941
Keep link_map l_addr binary layout compatible, rename l_addr to l_base
where rtld returns map base. Provide relocbase in newly added l_addr.
This effectively reverts the patch to the initial version of D24918.
Reported by: antoine (portmgr)
Reviewed by: jhb, markj
Tested by: markj
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D24946
Update unbound 1.9.6 --> 1.10.1.
Bug Fixes:
- CVE-2020-12662 Unbound can be tricked into amplifying an incoming
query into a large number of queries directed to a target.
- CVE-2020-12663 Malformed answers from upstream name servers can be
used to make Unbound unresponsive.
Reported by: emaste
MFC after: 3 days
Relnotes: yes
Security: CVE-2020-12662, CVE-2020-12663
This seems to have been broken since r247602 (from year 2013!).
Can be easily tested with
fstat -N /boot/kernel/kernel -M /var/crash/vmcore.last
MFC after: 1 week
Sponsored by: Panzura
Comparing fsid_t objects requires internal knowledge of the fsid structure
and yet this is duplicated across a number of places in the code.
Simplify by creating a fsidcmp function (macro).
Reviewed by: mjg, rmacklem
Approved by: mav (mentor)
MFC after: 1 week
Sponsored by: iXsystems, Inc.
Differential Revision: https://reviews.freebsd.org/D24749
It previously returned the object map base address, while all other
ELF operating systems return load offset, i.e. the difference between
map base and the link base.
Explain the meaning of the field in the man page.
Stop filling the mips-only l_offs member, which is apparently unused.
PR: 246561
Requested by: Damjan Jovanovic <damjan.jov@gmail.com>
Reviewed by: emaste, jhb, cem (previous version)
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D24918
Update libarchive to 3.4.3
Relevant vendor changes:
PR #1352: support negative zstd compression levels
PR #1359: improve zstd version checking
PR #1348: support RHT.security.selinux from GNU tar
PR #1357: support for archives compressed with pzstd
PR #1367: fix issues in acl tests
PR #1372: child handling cleanup
PR #1378: fix memory leak from passphrase callback
The CU-SeeMe videoconferencing client and associated protocol is at this
point a historical artifact; there is no need to retain support for this
protocol today.
Reviewed by: philip, markj, allanjude
Relnotes: Yes
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D24790
Expose the special kernel LAPIC, IOAPIC, and HPET devices to userspace
for use in, e.g., fallback instruction emulation (when userspace has a
newer instruction decode/emulation layer than the kernel vmm(4)).
Plumb the ioctl through libvmmapi and register the memory ranges in
bhyve(8).
Reviewed by: grehan
Differential Revision: https://reviews.freebsd.org/D24525
netgraph(3) points to #include <netgraph/netgraph.h>, which is kernel only.
The man page refers to the user-space part of the netgraph module, which is
located in <netgraph.h>.
Submitted by: lutz_donnerhacke.de
Approved by: bcr
Differential Revision: https://reviews.freebsd.org/D23814
We were accidentally using stfd instead of stw in our SAVEGPR macro.
This has almost certainly been causing crashes when compiling with -Os.
Reviewed by: jhibbits (in irc)
MFC after: 3 days
Sponsored by: Tag1 Consulting, Inc.
kve_offset gives the offset into the backing file, which is not what we
want since different segments may map the same page. Use the base of
the mapping to determine the offset exported by librtld_db instead.
PR: 244732
Reported by: Jenkins, Nicolò Mazzucato <nicomazz97@gmail.com>
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Assume gcc is at least 6.4, the oldest xtoolchain in the ports tree.
Assume clang is at least 6, which was in 11.2-RELEASE. Drop conditions
for older compilers.
Reviewed by: imp (earlier version), emaste, jhb
MFC after: 2 weeks
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D24802
Summary:
In r209294 kib added -fno-asynchronous-unwind-tables to the compile
flags for the GNU C startup components. This was done to work around a
BFD ld assertion, "no .eh_frame_hdr table will be created", which is
produced because of the layout of the startup objects.
Add the same flag to lib/csu too, for the same reason. And similarly to
r209294, also add -fno-omit-frame-pointer.
This is primarily meant to quickly MFC to stable/11, so it can end up in
the 11.4 release, as a fix for https://bugs.freebsd.org/246322.
PR: 246322
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D24797
functionality first appeared in FreeBSD.
Submitted by: Gordon Bergling gbergling_gmail.com
Approved by: bcr
Differential Revision: https://reviews.freebsd.org/D24677
Attempted to clean up the language around "this is a malloc'd object." May be
passed as a parameter to free(3) is a bit obtuse.
Sponsored by: Dell EMC Isilon
Save and restore (also known as suspend and resume) permits a snapshot
to be taken of a guest's state that can later be resumed. In the
current implementation, bhyve(8) creates a UNIX domain socket that is
used by bhyvectl(8) to send a request to save a snapshot (and
optionally exit after the snapshot has been taken). A snapshot
currently consists of two files: the first holds a copy of guest RAM,
and the second file holds other guest state such as vCPU register
values and device model state.
To resume a guest, bhyve(8) must be started with a matching pair of
command line arguments to instantiate the same set of device models as
well as a pointer to the saved snapshot.
While the current implementation is useful for several uses cases, it
has a few limitations. The file format for saving the guest state is
tied to the ABI of internal bhyve structures and is not
self-describing (in that it does not communicate the set of device
models present in the system). In addition, the state saved for some
device models closely matches the internal data structures which might
prove a challenge for compatibility of snapshot files across a range
of bhyve versions. The file format also does not currently support
versioning of individual chunks of state. As a result, the current
file format is not a fixed binary format and future revisions to save
and restore will break binary compatiblity of snapshot files. The
goal is to move to a more flexible format that adds versioning,
etc. and at that point to commit to providing a reasonable level of
compatibility. As a result, the current implementation is not enabled
by default. It can be enabled via the WITH_BHYVE_SNAPSHOT=yes option
for userland builds, and the kernel option BHYVE_SHAPSHOT.
Submitted by: Mihai Tiganus, Flavius Anton, Darius Mihai
Submitted by: Elena Mihailescu, Mihai Carabas, Sergiu Weisz
Relnotes: yes
Sponsored by: University Politehnica of Bucharest
Sponsored by: Matthew Grooms (student scholarships)
Sponsored by: iXsystems
Differential Revision: https://reviews.freebsd.org/D19495
Examples of depecrated algorithms in manual pages and sample configs
are updated where relevant. I removed the one example of combining
ESP and AH (vs using a cipher and auth in ESP) as RFC 8221 says this
combination is NOT RECOMMENDED.
Specifically, this removes support for the following ciphers:
- des-cbc
- 3des-cbc
- blowfish-cbc
- cast128-cbc
- des-deriv
- des-32iv
- camellia-cbc
This also removes support for the following authentication algorithms:
- hmac-md5
- keyed-md5
- keyed-sha1
- hmac-ripemd160
Reviewed by: cem, gnn (older verisons)
Relnotes: yes
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D24342
This option was added as a transition aide when symbol versioning was
first added. It was enabled by default in 2007 and is supported even
by the old GPLv2 binutils. Trying to disable it currently fails to
build in libc and at this point it isn't worth fixing the build.
Reported by: Michael Dexter
Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D24637
We do not want to support bootstrapping lua modules, so ensure that
require will fail by providing a nonexistent path.
Reviewed by: kevans
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D24610
sendto(2), sendmsg(2) and sendmmsg(2) return ENOTCONN if a destination
address is specified and the socket is not connected and the socket
protocol does not automatically connect ("implied connect"). Document
that. Also document the fact that the destination address is ignored
for connection-mode sockets if the socket is already connected.
PR: 245817
Submitted by: Erik Inge Bolsø <knan-bfo@modirum.com>
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D24530
Contrary to the kevent man page, EV_EOF on a fifo is not cleared by
EV_CLEAR. Modify the read and write filters to clear EV_EOF when the
fifo's PIPE_EOF flag is clear, and update the man page to document the
new behaviour.
Modify the write filter to return the amount of buffer space available
even if no readers are present. This matches the behaviour for sockets.
When reading from a pipe, only call pipeselwakeup() if some data was
actually read. This prevents the continuous re-triggering of a
EVFILT_READ event on EOF when in edge-triggered mode.
PR: 203366, 224615
Submitted by: Jan Kokemüller <jan.kokemueller@gmail.com>
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D24528
In r326576 ("use @@@ instead of @@ in __sym_default"), an earlier version of
the phabricator-discussed patch was inadvertently committed. The commit
message claims that @@@ means that weak is not needed, but that was due to a
misunderstanding of the use of weak symbols in this context by the submitted
in the first draft of the patch; the description text was not updated to
match the discussion. As discussed in phabricator, weak is needed for
symbol interposing because of the behavior of our rtld, and is widely used
elsewhere in libc.
This partial revert restores the approved version of the patch and permits
symbol interposing for openat.
Reported by: Raymond Ramsden <rramsden AT isilon.com>
Reviewed by: dim, emaste, kib (2017)
Discussed with: kib (2020)
Differential Revision: https://reviews.freebsd.org/D11653
Revert r354606 to restore r354605.
Apply one line from jemalloc commit d01b425e5d1e1 in hash_x86_128()
to fix the build with gcc, which only allows a fallthrough attribute
to appear before a case or default label.
Submitted by: jasone in r354605
Discussed with: jasone
Reviewed by: bdrewery
MFC after: never, due to gcc 4.2.1
Relnotes: yes
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D24522
If the index we're trying to convert is 0 we can avoid a potentially
expensive call to getifaddrs(). No interface has an ifindex of zero, so
we can handle this as an error: set the errno to ENXIO and return NULL.
Submitted by: Nick Rogers
Reviewed by: lutz at donnerhacke.de
MFC after: 2 weeks
Sponsored by: RG Nets
Differential Revision: https://reviews.freebsd.org/D24524
In the below-referenced PR, a case is attached of a simple reproducer that
exhibits suboptimal behavior: EVFILT_READ and EVFILT_WRITE being set in the
same kevent(2) call will only honor the first one. This is, in-fact, how
it's supposed to work.
A read of the manpage leads me to believe we could be more clear about this;
right now there's a logical leap to make in the relevant statement: "When
passed as input, it forces EV_ERROR to always be returned." -- the logical
leap being that this indicates the caller should have allocated space for
the change to be returned with EV_ERROR indicated in the events, or
subsequent filters will get dropped on the floor.
Another possible workaround that accomplishes similar effect without needing
space for all events is just setting EV_RECEIPT on the final change being
passed in; if any errored before it, the kqueue would not be drained. If we
made it to the final change with EV_RECEIPT set, then we would return that
one with EV_ERROR and still not drain the kqueue. This would seem to not be
all that advisable.
PR: 229741
MFC after: 1 week
This avoids passing garbage to sigprocmask() if the jump buffer is
invalid.
Reviewed by: mhorne
Obtained from: CheriBSD
Sponsored by: DARPA
Differential Revision: https://reviews.freebsd.org/D24483
While here, replace the array of mapping structures with an array of
string pointers where the index is the capability value.
Submitted by: Rob Fairbanks <rob.fx907@gmail.com>
Reviewed by: rgrimes
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D24289
