o Fix bug in PLIC_ENABLE macro when irq >= 32.
Tested on the real hardware, which is HiFive Unleashed board.
Thanks to SiFive, Inc. for the board provided.
Reviewed by: markj
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D19775
* Crank the OPAL state machine during the receive loop, to make sure the
pollers are executed
* Add a proper detach function, so the module can be unloaded and reloaded
at runtime.
It still doesn't reliably work 100% of the time on POWER9, and it appears
timing and/or cache related. It may work on POWER8 now.
MFC after: 2 weeks
Since OPAL_GET_MSG does not discriminate between message types, asynchronous
completion events may be received in the OPAL_GET_MSG call, which dequeues
them from the list, thus preventing OPAL_CHECK_ASYNC_COMPLETION from
succeeding. Handle this case by integrating with the messaging framework.
Summary:
OPAL needs to be kicked periodically in order for the firmware to make
progress on its tasks. To do so, create a heartbeat thread to perform this task
every N milliseconds, defined by the device tree. This task is also a central
location to handle all messages received from OPAL.
Reviewed By: luporl
Differential Revision: https://reviews.freebsd.org/D19743
Better Makefile syntax.
Note that this commit is to the project branch, but the review concerns the
merge to head.
Sponsored by: The FreeBSD Foundation
This change takes capsicum-test from upstream and applies some local changes to make the
tests work on FreeBSD when executed via Kyua.
The local modifications are as follows:
1. Make `OpenatTest.WithFlag` pass with the new dot-dot lookup behavior in FreeBSD 12.x+.
2. capsicum-test references a set of helper binaries: `mini-me`, `mini-me.noexec`, and
`mini-me.setuid`, as part of the execve/fexecve tests, via execve, fexecve, and open.
It achieves this upstream by assuming `mini-me*` is in the current directory, however,
in order for Kyua to execute `capsicum-test`, it needs to provide a full path to
`mini-me*`. In order to achieve this, I made `capsicum-test` cache the executable's
path from argv[0] in main(..) and use the cached value to compute the path to
`mini-me*` as part of the execve/fexecve testcases.
3. The capsicum-test test suite assumes that it's always being run on CAPABILITIES enabled
kernels. However, there's a chance that the test will be run on a host without a
CAPABILITIES enabled kernel, so we must check for the support before running the tests.
The way to achieve this is to add the relevant `feature_present("security_capabilities")`
check to SetupEnvironment::SetUp() and skip the tests when the support is not available.
While here, add a check for `kern.trap_enotcap` being enabled. As noted by markj@ in
https://github.com/google/capsicum-test/issues/23, this sysctl being enabled can trigger
non-deterministic failures. Therefore, the tests should be skipped if this sysctl is
enabled.
All local changes have been submitted to the capsicum-test project
(https://github.com/google/capsicum-test) and are in various stages of review.
Please see the following pull requests for more details:
1. https://github.com/google/capsicum-test/pull/35
2. https://github.com/google/capsicum-test/pull/41
3. https://github.com/google/capsicum-test/pull/42
Reviewed by: asomers
Discussed with: emaste, markj
Approved by: emaste (mentor)
MFC after: 2 months
Differential Revision: https://reviews.freebsd.org/D19758
By default, FUSE performs authorization in the server. That means that it's
insecure for the client to reuse FUSE file handles between different users,
groups, or processes. Linux handles this problem by creating a different
FUSE file handle for every file descriptor. FreeBSD can't, due to
differences in our VFS design.
This commit adds credential information to each fuse_filehandle. During
open(2), fusefs will now only reuse a file handle if it matches the exact
same access mode, pid, uid, and gid of the calling process.
PR: 236844
Sponsored by: The FreeBSD Foundation
There is some code duplication in error handling paths in a few functions.
Create a function for printing such errors in human-readable way and get rid
of duplicates.
Approved by: imp (mentor)
Differential Revision: https://reviews.freebsd.org/D15912
Using DFLTPHYS/MAXPHYS is not always OK, instead make it possible for the
controller driver to provide maximum data size to MMCCAM, and use it there.
The old stack already does this.
Reviewed by: manu
Approved by: imp (mentor)
Differential Revision: https://reviews.freebsd.org/D15892
Per the upstream pull-request [1]:
```
gtest prior to this change would completely ignore `GTEST_SKIP()` if
called in `Environment::SetUp()`, instead of bailing out early, unlike
`Test::SetUp()`, which would cause the tests themselves to be skipped.
The only way (prior to this change) to skip the tests would be to
trigger a fatal error via `GTEST_FAIL()`.
Desirable behavior, in this case, when dealing with
`Environment::SetUp()` is to check for prerequisites on a system
(example, kernel supports a particular featureset, e.g., capsicum), and
skip the tests. The alternatives prior to this change would be
undesirable:
- Failing sends the wrong message to the test user, as the result of the
tests is indeterminate, not failed.
- Having to add per-test class abstractions that override `SetUp()` to
test for the capsicum feature set, then skip all of the tests in their
respective SetUp fixtures, would be a lot of human and computational
work; checking for the feature would need to be done for all of the
tests, instead of once for all of the tests.
For those reasons, making `Environment::SetUp()` handle `GTEST_SKIP()`,
by not executing the testcases, is the most desirable solution.
In order to properly diagnose what happened when running the tests if
they are skipped, print out the diagnostics in an ad hoc manner.
Update the documentation to note this change and integrate a new test,
gtest_skip_in_environment_setup_test, into the test suite.
This change addresses #2189.
Signed-off-by: Enji Cooper <yaneurabeya@gmail.com>
```
The goal with my merging in this change is to avoid requiring extensive
refactoring/retesting of test suites when ensuring prerequisites are met,
e.g., checking for a CAPABILITIES-enabled kernel before running capsicum-test
(see D19758 for more details).
The proof-of-concept is being imported before accepted by the upstream
project due to the fact that the upstream project is undergoing a potential
development freeze and the maintainers aren't responding to my PR.
1. https://github.com/google/googletest/pull/2203
Reported by: asomers (https://github.com/google/googletest/issues/2189)
Reviewed by: asomers
Approved by: emaste (mentor)
MFC after: 2 months
Differential Revision: https://reviews.freebsd.org/D19765
'be_destroy' can destroy a boot environment (by name) or a given snapshot.
If the target to be destroyed is a dataset, check if it's mounted. We don't
want to check if the origin dataset is mounted when destroying a snapshot.
PR: 236043
Submitted by: Rob Fairbanks <rob.fx907 gmail com>
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D19650
O_EXEC is useful for fexecve(2) and fchdir(2). Treat it as another fufh
type alongside the existing RDONLY, WRONLY, and RDWR. Prior to r345742 this
would've caused a memory and performance penalty.
PR: 236329
Sponsored by: The FreeBSD Foundation
r345742 replaced fusefs's fufh array with a fufh list. But it left a few
array idioms in place. This commit replaces those idioms with more
efficient list idioms. One location is in fuse_filehandle_close, which now
takes a pointer argument. Three other locations are places that had to loop
over all of a vnode's fuse filehandles.
Sponsored by: The FreeBSD Foundation
I/O operations already in its queue were not being properly drained.
The GEOM framework does the queue draining, but the device driver
needs to wait for the draining to happen. The waiting is done by
adding a g_md_providergone() function to wait for the I/O operations
to finish up.
It is likely that every GEOM provider that implements orphaning
attached GEOM consumers needs to use the "providergone" mechanism
for this same reason, but some of them do not do so. Apparently
Kenneth Merry (ken@) added the drain for just such races, but he
missed adding it to some of the device drivers that needed it.
Submitted by: Chuck Silvers
Reviewed by: imp
Tested by: Chuck Silvers
MFC after: 1 week
Sponsored by: Netflix
Similar to bcm2835_sdhost.c add a TUNABLE and SYSCTL to selectively
turn on debugging printfs if debugging is turned on at compile time.
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Reviewed by: gonzo, andrew
Differential Revision: https://reviews.freebsd.org/D19745
frame header and data.
This will fix 'Mysterious OLPC stuff' for received frames and wrong
CCMP / TKIP / data decoding for transmitted frames in net/wireshark
dissector.
While here, drop unneeded comment - net80211 handles padding requirements
for Tx & Rx without driver adjustment.
Tested with D-Link DWA-140 rev B3, STA mode.
MFC after: 1 week
The goal of saving entropy in Fortuna is two-fold: (1) to provide early
availability of the random device (unblocking) on next boot; and (2), to
have known, high-quality entropy available for that initial seed. We know
it is high quality because it's output taken from Fortuna.
The FS&K paper makes it clear that Fortuna unblocks when enough bits have
been input that the output //may// be safely seeded. But they emphasize
that the quality of various entropy sources is unknown, and a saved entropy
file is essential for both availability and ensuring initial
unpredictability.
In FreeBSD we persist entropy using two mechanisms:
1. The /etc/rc.d/random shutdown() function, which is used for ordinary
shutdowns and reboots; and,
2. A cron job that runs every dozen minutes or so to persist new entropy, in
case the system suffers from power loss or a crash (bypassing the
ordinary shutdown path).
Filesystems are free to cache dirty data indefinitely, with arbitrary flush
policy. Fsync must be used to ensure the data is persisted, especially for
the cron job save-entropy, whose entire goal is power loss and crash safe
entropy persistence.
Ordinary shutdown may not need the fsync because unmount should flush out
the dirty entropy file shortly afterwards. But it is always possible power
loss or crash occurs during the short window after rc.d/random shutdown runs
and before the filesystem is unmounted, so the additional fsync there seems
harmless.
PR: 230876
Reviewed by: delphij, markj, markm
Approved by: secteam (delphij)
Differential Revision: https://reviews.freebsd.org/D19742
The FUSE protocol allows each open file descriptor to have a unique file
handle. On FreeBSD, these file handles must all be stored in the vnode.
The old method (also used by OSX and OpenBSD) is to store them all in a
small array. But that limits the total number that can be stored. This
commit replaces the array with a linked list (a technique also used by
Illumos). There is not yet any change in functionality, but this is the
first step to fixing several bugs.
PR: 236329, 236340, 236381, 236560, 236844
Discussed with: cem
Sponsored by: The FreeBSD Foundation
Each control message region must be aligned on a 4-byte boundary on 32-bit
architectures. The 32-bit compat shim for recvmsg() gets the actual layout
right, but doesn't pad the payload length when computing msg_controllen for
the output message header. If a control message contains an unaligned
payload, such as the 1-byte TTL field in the example attached to PR 236737,
this can produce control message payload boundaries that extend beyond
the boundary reported by msg_controllen.
PR: 236737
Reported by: Yuval Pavel Zholkover <paulzhol@gmail.com>
Reviewed by: markj
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D19768
stf(4) interfaces are not multicast-capable so they can't perform DAD.
They also did not set IFF_DRV_RUNNING when an address was assigned, so
the logic in nd6_timer() would periodically flag such an address as
tentative, resulting in interface flapping.
Fix the problem by setting IFF_DRV_RUNNING when an address is assigned,
and do some related cleanup:
- In in6if_do_dad(), remove a redundant check for !UP || !RUNNING.
There is only one caller in the tree, and it only looks at whether
the return value is non-zero.
- Have in6if_do_dad() return false if the interface is not
multicast-capable.
- Set ND6_IFF_NO_DAD when an address is assigned to an stf(4) interface
and the interface goes UP as a result. Note that this is not
sufficient to fix the problem because the new address is marked as
tentative and DAD is started before in6_ifattach() is called.
However, setting no_dad is formally correct.
- Change nd6_timer() to not flag addresses as tentative if no_dad is
set.
This is based on a patch from Viktor Dukhovni.
Reported by: Viktor Dukhovni <ietf-dane@dukhovni.org>
Reviewed by: ae
MFC after: 3 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D19751
This test shows how bug 236844 can lead to a privilege escalation when used
with the -o allow_other mount option.
PR: 236844
Sponsored by: The FreeBSD Foundation
This is particularly useful when installing programs for tests that need to be
linked statically, e.g., mini-me from capsicum-test, which is linked statically
to avoid the dynamic library lookup in the upstream project.
Reviewed by: emaste
Approved by: emaste (mentor)
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D19756
In particular, elf32 FreeBSD binaries were not executed on LP64 hosts.
The interp_name_len value should account for the nul terminator. This
is needed for strncmp()s in brand checking code to work.
Reported by: andreast
Sponsored by: The FreeBSD Foundation
MFC after: 12 days (together with r345661)
providers mediasize changes.
While here, use GEOM nomenclature to describe providers instead of calling
them device nodes.
Obtained from: Fudo Security
Tested in: AWS
The behavior prior to this change would not override default values if set in
`bsd.own.mk`, or (in the more general case) globally before `bsd.progs.mk` was
included. This affected `bsd.test.mk` as well, since it consumes
`bsd.progs.mk`.
Some examples of this failing behavior are as follows:
* `BINMODE` defaults to 0555 per `bsd.own.mk`. If someone wanted to set the
`BINMODE` to `NOBINMODE` (0444) for `prog`, for example, like
`BINMODE.prog= ${NOBINMODE}`, `bsd.progs.mk` would not honor the per-PROG
setting.
* An application, `prog`, does not build at `WARNS?= 6`. Before this change,
setting to a lower `WARNS` value, e.g., `WARNS.prog= 3`, would have been
impossible, requiring that `prog` be built from another directory,
the global `WARNS` be lowered, or a per-PROG value needing to be set
across the board. None of the above workarounds is desirable.
This change unbreaks variables defined in `PROG_OVERRIDE_VARS` which have
defaults set before `bsd.progs.mk` is included, by setting them to their
defined values if set on a per-PROG basis.
Reviewed by: asomers
Approved by: emaste (mentor)
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D19755
Previously fusefs would treat any file opened O_WRONLY as though the
FOPEN_DIRECT_IO flag were set, in an attempt to avoid issuing reads as part
of a RMW write operation on a cached part of the file. However, the FUSE
protocol explicitly allows reads of write-only files for precisely that
reason.
Sponsored by: The FreeBSD Foundation
VOP_GETPAGES is disabled when vfs.fusefs.data_cache_mode=0, causing mmap to
return success but accessing the mapped memory will subsequently segfault.
Sponsored by: The FreeBSD Foundation
Surprisingly, open(..., O_WRONLY | O_CREAT, 0444) should work. POSIX
requires it. But it didn't work in early FUSE implementations. Add a
regression test so that our FUSE driver doesn't make the same mistake.
Sponsored by: The FreeBSD Foundation
Log:
```
commit feb47278d7cffa8cf4bc8c8ff78047126fa41e82 (HEAD -> dev, origin/dev, origin/HEAD)
Author: ngie-eign <1574099+ngie-eign@users.noreply.github.com>
Date: Fri Mar 22 10:51:04 2019 -0700
Remove `FAIL` macro use for non-x86 architectures when testing `sysarch(2)` (#38)
`FAIL()` does not support being called in the form noted in the test,
which causes a test failure on non-x86 architectures.
The alternatives (use `ADD_TEST_FAILURE()` or `GTEST_SKIP()`) would be
misleading (in both cases), and in the case of `GTEST_SKIP()` is unavailable
on the version of googletest packaged with capsicum-test.
Signed-off-by: Enji Cooper <yaneurabeya@gmail.com>
commit 32ad0f3e4c11be7f7463d40eef8d4a78ac9f61a5
Author: Enji Cooper <yaneurabeya@gmail.com>
Date: Fri Mar 15 20:01:56 2019 -0700
Fix `-Wunused-parameter` issues
Remove variable declarations from functions/methods where the variable
is not required.
Signed-off-by: Enji Cooper <yaneurabeya@gmail.com>
commit 9437b4c550110200ef190ac39fb26c1d8fc55d9a
Author: Enji Cooper <yaneurabeya@gmail.com>
Date: Fri Mar 15 19:59:00 2019 -0700
Fix `-Wshadow` issues with `EXPECT_OPEN_OK(..)` macro
* Wrap in do-while(0) block to avoid variable shadowing issue with
multiple calls in the same function.
* Prefix block local variables with `_` to try and avoid variable
name clashes with values local to test methods.
Signed-off-by: Enji Cooper <yaneurabeya@gmail.com>
commit adf4a21a233b5da5cac440f4006e258ffba09510
Author: Enji Cooper <yaneurabeya@gmail.com>
Date: Fri Mar 15 19:55:00 2019 -0700
Fix `-Wmissing-variable-declarations` issue with `known_rights` global
Staticize it since it is only used in the file.
Signed-off-by: Enji Cooper <yaneurabeya@gmail.com>
```
This merges a number of the outstanding changes made locally to
^/projects/capsicum-test that were accepted into the upstream project.
The sync was done like so:
```
curl -L https://github.com/google/capsicum-test/tarball/dd7eac98c0cf | tar --strip-components=1 -xvzf - -C dist/
rm -Rf dist/*/
```
1. https://github.com/google/capsicum-test
When comparing best frequencies use the absolute value.
If we do not do that we end up choosing an always lower value than
the best one if the exact freq cannot be met.
MFC after: 2 weeks
The current logic for CSTD/CXXSTD requires homogenity as far as the
supported C/C++ standards, which is a sensible default. However, when
dealing with differing versions of C++, some code may compile with C++11, but
not C++17 (for instance). So in order to avoid having people convert over their
code to the new standard, give the users the ability to specify the standard on
a per-program basis.
This will allow a user to override the supporting standard for a set of
programs, mixing C++11 with C++14 (for instance).
Reviewed by: asomers
Apprved by: emaste (mentor)
MFC after: 1 month
MFC with: r345708
Differential Revision: https://reviews.freebsd.org/D19738
CXXSTD was added as the C++ analogue to CSTD.
CXXSTD defaults to `-std=c++11` with supporting compilers; `-std=gnu++98`,
otherwise for older versions of g++.
This change standardizes the CXXSTD variable, originally added to
googletest.test.inc.mk as part of r345203.
As part of this effort, convert all `CXXFLAGS+= -std=*` calls to use `CXXSTD`.
Notes:
This value is not sanity checked in bsd.sys.mk, however, given the two
most used C++ compilers on FreeBSD (clang++ and g++) support both modes, it is
likely to work with both toolchains. This method will be refined in the future
to support more variants of C++, as not all versions of clang++ and g++ (for
instance) support C++14, C++17, etc.
Any manual appending of `-std=*` to `CXXFLAGS` should be replaced with CXXSTD.
Example:
Before this commit:
```
CXXFLAGS+= -std=c++14
```
After this commit:
```
CXXSTD= c++14
```
Reviewed by: asomers
Approved by: emaste (mentor)
MFC after: 1 month
MFC with: r345203, r345704, r345705
Relnotes: yes
Tested with: make tinderbox
Differential Revision: https://reviews.freebsd.org/D19732
When a review is closed via Phabricator it updates the patch attached to the
review. I downloaded the raw patch from Phabricator, applied it, and repeated
my mistake from r345704 by accident mixing content from D19732 and D19738.
For my own personal sanity, I will try not to mix reviews like this in the
future.
MFC after: 1 month
MFC with: r345706
Approved by: emaste (mentor, implicit)
CXXSTD was added as the C++ analogue to CSTD.
CXXSTD defaults to `-std=c++11` with supporting compilers; `-std=gnu++98`,
otherwise for older versions of g++.
This change standardizes the CXXSTD variable, originally added to
googletest.test.inc.mk as part of r345203.
As part of this effort, convert all `CXXFLAGS+= -std=*` calls to use `CXXSTD`.
Notes:
This value is not sanity checked in bsd.sys.mk, however, given the two
most used C++ compilers on FreeBSD (clang++ and g++) support both modes, it is
likely to work with both toolchains. This method will be refined in the future
to support more variants of C++, as not all versions of clang++ and g++ (for
instance) support C++14, C++17, etc.
Any manual appending of `-std=*` to `CXXFLAGS` should be replaced with CXXSTD.
Example:
Before this commit:
```
CXXFLAGS+= -std=c++14
```
After this commit:
```
CXXSTD= c++14
```
Reviewed by: asomers
Approved by: emaste (mentor)
MFC after: 1 month
MFC with: r345203, r345704, r345705
Relnotes: yes
Tested with: make tinderbox
Differential Revision: https://reviews.freebsd.org/D19732
I accidentally committed code from two reviews. I will reintroduce the code to
bsd.progs.mk as part of a separate commit from r345704.
Approved by: emaste (mentor, implicit)
MFC after: 2 months
MFC with: r345704
CXXSTD defaults to `-std=c++11` with supporting compilers; `-std=gnu++98`,
otherwise for older versions of g++.
This change standardizes the CXXSTD variable, originally added to
googletest.test.inc.mk as part of r345203.
As part of this effort, convert all `CXXFLAGS+= -std=*` calls to use `CXXSTD`.
Notes:
This value is not sanity checked in bsd.sys.mk, however, given the two
most used C++ compilers on FreeBSD (clang++ and g++) support both modes, it is
likely to work with both toolchains. This method will be refined in the future
to support more variants of C++, as not all versions of clang++ and g++ (for
instance) support C++14, C++17, etc.
Any manual appending of `-std=*` to `CXXFLAGS` should be replaced with CXXSTD.
Example:
Before this commit:
```
CXXFLAGS+= -std=c++14
```
After this commit:
```
CXXSTD= c++14
```
Reviewed by: asomers
Approved by: emaste (mentor)
MFC after: 1 month
Relnotes: yes
Differential Revision: https://reviews.freebsd.org/D19732
