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Commit 436e916ea introduced the assumption into test-stat-util that /run
is a tmpfs mount point. This is not the case in build chroots such as
Fedora's mock or Debian's sbuild. So only assert that /run is a tmpfs
and not a btrfs if /run is actually a mount point. This will then still
be asserted with installed tests.
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This changes the file copy logic of machined to set the UID/GID of all
copied files to 0 if the host and container do not share the same user
namespace.
Fixes: #4078
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This adds a unified "copy_flags" parameter to all copy_xyz() function
calls, replacing the various boolean flags so far used. This should make
many invocations more readable as it is clear what behaviour is
precisely requested. This also prepares ground for adding support for
more modes later on.
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Drop the TEST_DATA_DIR macro as this was using alloca() within a
function call which is allegedly unsafe. So add a "suffix" argument to
get_testdata_dir() instead and call that directly.
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Rename get_exe_relative_testdata_dir() to get_testdata_dir() and move
the env var check into that, so that everything interesting happens at
the same place.
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TEST_DIR is rather generic, and we prefix all variables used by installed
executables with "SYSTEMD_".
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That way, if the test directory does not exist we don't leave behind
temporary files (as in that case or on test failure the cleanup actions
don't run).
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Collect interpreter backtraces in systemd-coredump
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"nfsnobody" is now obsolete.
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Only one test case is added, but it is enough to check basic sanity of the
code (single-line and binary fields and trusted fields, allocation and freeing).
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It is useful to package test-* binaries and run them as root under
autopkgtest or manually on particular machines. They currently have a
built-in hardcoded absolute path to their test data, which does not work
when running the test programs from any other path than the original
build directory.
By default, make the tests look for their data in
<test_exe_directory>/testdata/ so that they can be called from any
directory (provided that the corresponding test data is installed
correctly). As we don't have a fixed static path in the build tree (as
build and source tree are independent), set $TEST_DIR with "make check"
to point to <srcdir>/test/, as we previously did with an automake
variable.
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test-execute without capsh
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PermissionsStartOnly= (#5309)
ReadOnlyPaths=, ProtectHome=, InaccessiblePaths= and ProtectSystem= are
about restricting access and little more, hence they should be disabled
if PermissionsStartOnly= is used or ExecStart= lines are prefixed with a
"+". Do that.
(Note that we will still create namespaces and stuff, since that's about
a lot more than just permissions. We'll simply disable the effect of
the four options mentioned above, but nothing else mount related.)
This also adds a test for this, to ensure this works as intended.
No documentation updates, as the documentation are already vague enough
to support the new behaviour ("If true, the permission-related execution
options…"). We could clarify this further, but I think we might want to
extend the switches' behaviour a bit more in future, hence leave it at
this for now.
Fixes: #5308
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a2eb5ea79c added a new field to `CalendarComponent`; update
`normalize_chain` to compare all fields when dropping duplicates
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Fixes #5273.
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Add new MountAPIVFS= boolean unit file setting + RootImage=
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Add a bit of code that tries to get the right parameter order in place
for some of the better known architectures, and skips
restrict_namespaces for other archs.
This also bypasses the test on archs where we don't know the right
order.
In this case I didn't bother with testing the case where no filter is
applied, since that is hopefully just an issue for now, as there's
nothing stopping us from supporting more archs, we just need to know
which order is right.
Fixes: #5241
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The compiler warning is a false positive, since n_addresses is always
initialised on the success path from parse_argv(), but the compiler
obviously can’t work that out.
Fixes:
src/test/test-nss.c:426:9: warning: 'n_addresses' may be used uninitialized in this function [-Wmaybe-uninitialized]
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On i386 we block the old mmap() call entirely, since we cannot properly
filter it. Thankfully it hasn't been used by glibc since quite some
time.
Fixes: #5240
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it enabled
If a unit foobar@.service stored below /usr is instantiated via a
symlink foobar@quux.service also below /usr, then we should consider the
instance statically enabled, while the template itself should continue
to be considered enabled/disabled/static depending on its [Install]
section.
In order to implement this we'll now look for enablement symlinks in all
unit search paths, not just in the config and runtime dirs.
Fixes: #5136
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directory for a service
This is similar to RootDirectory= but mounts the root file system from a
block device or loopback file instead of another directory.
This reuses the image dissector code now used by nspawn and
gpt-auto-discovery.
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it a NOP
See: #5215
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explicit_bzero was added in glibc 2.25. Make use of it.
explicit_bzero is hardcoded to zero the memory, so string erase now
truncates the string, instead of overwriting it with 'x'. This causes
a visible difference only in the journalctl case.
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Gcc7 is smarter about detecting unused functions and detects those two functions
which are unused in tests. But gperf generates them for us, so let's instead of removing
tell gcc that we know they might be unused in the test code.
In file included from ../src/test/test-af-list.c:29:0:
./src/basic/af-from-name.h:140:1: warning: ‘lookup_af’ defined but not used [-Wunused-function]
lookup_af (register const char *str, register size_t len)
^~~~~~~~~
In file included from ../src/test/test-arphrd-list.c:29:0:
./src/basic/arphrd-from-name.h:125:1: warning: ‘lookup_arphrd’ defined but not used [-Wunused-function]
lookup_arphrd (register const char *str, register size_t len)
^~~~~~~~~~~~~
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usec_t is always 64bit, which means it can cover quite a number of
years. However, 4 digit year display and glibc limitations around time_t
limit what we can actually parse and format. Let's make this explicit,
so that we never end up formatting dates we can#t parse and vice versa.
Note that this is really just about formatting/parsing. Internal
calculations with times outside of the formattable range are not
affected.
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We use different idioms at different places. Let's replace this is the
one true new idiom, that is even a bit faster...
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networkd: Allow ':' in label
This reverts a341dfe563 and takes a slightly different approach: anything is
allowed in network interface labels, but network interface names are verified
as before (i.e. amongst other things, no colons are allowed there).
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If chase_symlinks() encouters an absolute symlink, it resets the todo
buffer to just the newly discovered symlink and discards any of the
remaining previous symlink path. Regardless of whether or not the
symlink is absolute or relative, we need to preserve the remainder of
the path that has not yet been resolved.
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':' in not a a valid interface name.
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interfaces (#5117)
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This substantially reworks the seccomp code, to ensure better
compatibility with some architectures, including i386.
So far we relied on libseccomp's internal handling of the multiple
syscall ABIs supported on Linux. This is problematic however, as it does
not define clear semantics if an ABI is not able to support specific
seccomp rules we install.
This rework hence changes a couple of things:
- We no longer use seccomp_rule_add(), but only
seccomp_rule_add_exact(), and fail the installation of a filter if the
architecture doesn't support it.
- We no longer rely on adding multiple syscall architectures to a single filter,
but instead install a separate filter for each syscall architecture
supported. This way, we can install a strict filter for x86-64, while
permitting a less strict filter for i386.
- All high-level filter additions are now moved from execute.c to
seccomp-util.c, so that we can test them independently of the service
execution logic.
- Tests have been added for all types of our seccomp filters.
- SystemCallFilters= and SystemCallArchitectures= are now implemented in
independent filters and installation logic, as they semantically are
very much independent of each other.
Fixes: #4575
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Add AF_VSOCK socket activation support
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The AF_VSOCK address family facilitates guest<->host communication on
VMware and KVM (virtio-vsock). Adding support to systemd allows guest
agents to be launched through .socket unit files. Today guest agents
are stand-alone daemons running inside guests that do not take advantage
of systemd socket activation.
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gperf-3.1 generates lookup functions that take a size_t length
parameter instead of unsigned int. Test for this at configure time.
Fixes: https://github.com/systemd/systemd/issues/5039
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"%d (%m) %s\n" crashes asan: https://github.com/google/sanitizers/issues/759
So, let's place %m after %s
Fixes:
```
$ ./libtool --mode=execute ./test-selinux
...
============ test_misc ==========
ASAN:DEADLYSIGNAL
=================================================================
==2981==ERROR: AddressSanitizer: SEGV on unknown address 0x000041b58ab3 (pc 0x7fd9c55a0eb2 bp 0x7fffdc2f9640 sp 0x7fffdc2f8d68 T0)
#0 0x7fd9c55a0eb1 (/lib64/libasan.so.3+0xdeeb1)
#1 0x7fd9c5550bbf (/lib64/libasan.so.3+0x8ebbf)
#2 0x7fd9c5552cdd in __interceptor_vsnprintf (/lib64/libasan.so.3+0x90cdd)
#3 0x7fd9c5063715 in log_internalv src/basic/log.c:680
#4 0x7fd9c506390a in log_internal src/basic/log.c:697
#5 0x561d398181a2 in test_misc src/test/test-selinux.c:81
#6 0x561d398185e8 in main src/test/test-selinux.c:117
#7 0x7fd9c493a400 in __libc_start_main (/lib64/libc.so.6+0x20400)
#8 0x561d39817859 in _start (/home/vagrant/systemd-asan/.libs/lt-test-selinux+0x1859)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/lib64/libasan.so.3+0xdeeb1)
==2981==ABORTING
```
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This makes sure we can invoke it safely from out "mkosi.build" script
when mkosi is invoked for a read-only image.
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Also, add tests to make sure this actually works as intended.
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If a hex string has an uneven length, generate an error instead of
silently assuming a trailing '0' was in place.
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In preparation for reusing the image dissector in the GPT auto-discovery
logic, only optionally fail the dissection when we can't identify a root
partition.
In the GPT auto-discovery we are completely fine with any kind of root,
given that we run when it is already mounted and all we do is find some
additional auxiliary partitions on the same disk.
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This improves kernel command line parsing in a number of ways:
a) An kernel option "foo_bar=xyz" is now considered equivalent to
"foo-bar-xyz", i.e. when comparing kernel command line option names "-" and
"_" are now considered equivalent (this only applies to the option names
though, not the option values!). Most of our kernel options used "-" as word
separator in kernel command line options so far, but some used "_". With
this change, which was a source of confusion for users (well, at least of
one user: myself, I just couldn't remember that it's systemd.debug-shell,
not systemd.debug_shell). Considering both as equivalent is inspired how
modern kernel module loading normalizes all kernel module names to use
underscores now too.
b) All options previously using a dash for separating words in kernel command
line options now use an underscore instead, in all documentation and in
code. Since a) has been implemented this should not create any compatibility
problems, but normalizes our documentation and our code.
c) All kernel command line options which take booleans (or are boolean-like)
have been reworked so that "foobar" (without argument) is now equivalent to
"foobar=1" (but not "foobar=0"), thus normalizing the handling of our
boolean arguments. Specifically this means systemd.debug-shell and
systemd_debug_shell=1 are now entirely equivalent.
d) All kernel command line options which take an argument, and where no
argument is specified will now result in a log message. e.g. passing just
"systemd.unit" will no result in a complain that it needs an argument. This
is implemented in the proc_cmdline_missing_value() function.
e) There's now a call proc_cmdline_get_bool() similar to proc_cmdline_get_key()
that parses booleans (following the logic explained in c).
f) The proc_cmdline_parse() call's boolean argument has been replaced by a new
flags argument that takes a common set of bits with proc_cmdline_get_key().
g) All kernel command line APIs now begin with the same "proc_cmdline_" prefix.
h) There are now tests for much of this. Yay!
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Check if the parsed seconds value fits in an integer *after*
multiplying by USEC_PER_SEC, otherwise a large value can trigger
modulo by zero during normalization.
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This is useful for reusing the dissector logic in the gpt-auto-discovery logic:
there we really don't want to use MBR or naked file systems as root device.
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Let's use chase_symlinks() when looking for /etc/os-release and
/usr/lib/os-release as these files might be symlinks (and actually are IRL on
some distros).
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calendarspec: allow repetition values with ranges
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This means that callers can distiguish an error from flags==0,
and don't have to special-case the empty string.
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