coredump: introduce an enum to wrap dumpable constants
Two constants are described in the man page, but are not defined by a header.
The third constant is described in the kernel docs. Use explicit values to
show that those are values are defined externally.
A new core_pattern specifier was added, %F, to provide a PIDFD
to the usermode helper process referring to the crashed process.
This removes all possible race conditions, ensuring only the
crashed process gets inspected by systemd-coredump.
The check looks plausible, but when I started checking whether it needs
to be lowered for the recent changes, I realized that it doesn't make
much sense.
context_parse_iovw() is called from a few places, e.g.:
- process_socket(), where the other side controls the contents of the
message. We already do other checks on the correctness of the message
and this assert is not needed.
- gather_pid_metadata_from_argv(), which is called after
inserting MESSAGE_ID= and PRIORITY= into the array, so there is no
direct relation between _META_ARGV_MAX and the number of args in the
iovw.
- gather_pid_metadata_from_procfs(), where we insert a bazillion fields,
but without any relation to _META_ARGV_MAX.
Since we already separately check if the required stuff was set, drop this
misleading check.
The kernel provides %d which is documented as
"dump mode—same as value returned by prctl(2) PR_GET_DUMPABLE".
We already query /proc/pid/auxv for this information, but unfortunately this
check is subject to a race, because the crashed process may be replaced by an
attacker before we read this data, for example replacing a SUID process that
was killed by a signal with another process that is not SUID, tricking us into
making the coredump of the original process readable by the attacker.
With this patch, we effectively add one more check to the list of conditions
that need be satisfied if we are to make the coredump accessible to the user.
Reportedy-by: Qualys Security Advisory <qsa@qualys.com>
In principle, %d might return a value other than 0, 1, or 2 in the future.
Thus, we accept those, but emit a notice.
Yu Watanabe [Thu, 15 May 2025 03:34:35 +0000 (12:34 +0900)]
core: introduce Unit.dependency_generation counter and restart loop when dependency is updated in the loop
When starting unit A, a dependent unit B may be loaded if it is not
loaded yet, and the dependencies in unit A may be updated.
As Hashmap does not allow a new entry to be added in a loop, we need to
restart loop in such case.
Yu Watanabe [Tue, 20 May 2025 19:38:07 +0000 (04:38 +0900)]
core/transaction: do not override unit load state when unit_load() failed
When unit_load() failed for some reasons, previously we overrided the
load state with UNIT_NOT_FOUND, but we did not update the
Unit.fragment_not_found_timestamp_hash. So, the unit may be loaded
multiple times when the unit is in a dependency list of another unit,
as manager_unit_cache_should_retry_load() will be true again even on
next call.
Let's not override the unit state set by unit_load().
Note, after unit_load(), the unit state should not be UNIT_STUB.
Let's also add the assertion about that.
This change is important when combined with the next commit, as with the
next commit we will restart the FOREACH_UNIT_DEPENDENCY() loop if an unit
is reloaded, hence overriding load state with UNIT_NOT_FOUND may cause
infinit loop.
Yu Watanabe [Tue, 20 May 2025 19:32:09 +0000 (04:32 +0900)]
core/transaction: drop redundant call of bus_unit_validate_load_state()
The function manager_unit_cache_should_retry_load() reutrns true only
when the unit state is UNIT_NOT_FOUND. Hence, it is not necessary to
call bus_unit_validate_load_state() before checking
manager_unit_cache_should_retry_load().
Yu Watanabe [Tue, 27 May 2025 18:18:14 +0000 (03:18 +0900)]
udevadm: allow to specify device by device ID
We have already exposed device ID in the output of device ID in J
fields. Also sd_device_get_device_id() and sd_device_new_from_device_id()
are already public. Hence, making udevadm accept device IDs may be
useful.
With this change, as we save several data in /run/udev with device ID,
we can call udevadm something like the following:
```
udevadm info $(ls /run/udev/tags/uaccess)
```
Then, we can show all devices that has uaccess tag.
Jan Čermák [Wed, 28 May 2025 18:33:03 +0000 (20:33 +0200)]
journal-gatewayd: add /boots endpoint (#37574)
Add endpoint for listing boots. Output format mimics `journalctl
--list-boots -o json`, so it's a plain array containing index, boot ID
and timestamps of the first and last entry. Initial implementation
returns boots ordered starting with the current one and doesn't allow
any filtering (i.e. equivalent of --lines argument).
A "string" is a concept in C. In a text-based API, this is implicit, especially
if we say that something was "formatted". So change occurences of "decimal
string" to just "decimal". Similarly, "numerics" is unclear, say "digits".
Also, a "timestamp is in a clock" just sounds wrong. Reword those sentences.
Yu Watanabe [Wed, 28 May 2025 02:14:41 +0000 (11:14 +0900)]
sd-bus: rename internal structs and enums
This renames e.g. struct bus_body_part -> BusMessageBodyPart to
follow our usual coding style. Also, several struct and enum
declarations are moved to relevant headers.
Also, this introduces bus-forward.h.
Yu Watanabe [Tue, 27 May 2025 20:39:37 +0000 (05:39 +0900)]
meson: check -ffinite-math-only in more detail
Even if -fno-finite-math-only is specified, -ffinite-math-only,
-ffast-math, or -Ofast may be also specified after that. In that case,
-fno-finite-math-only has no effect, and test-json will fail.
Yu Watanabe [Tue, 27 May 2025 17:09:52 +0000 (02:09 +0900)]
network/link: update state file when master ifindex is changed
If master ifindex is non-zero, then the carrier state and operational
state of the interface may be the enslaved state.
As the operational state is saved in link state file, and read by
wait-online, we need to update the state file when the master ifindex is
changed.
Yu Watanabe [Tue, 27 May 2025 14:17:40 +0000 (23:17 +0900)]
network/link: ENODATA from reading IFLA_MASTER when an interface has no master
When an interface leaved from the master interface, then reading
IFLA_MASTER attribute causes ENODATA. When the interface was previously
enslaved to another interface, we need to remove reference to the
interface from the previous master interface.
This is especially important when
```
ip link set dev eth0 nomaster
```
is called.
* 5e739ef1ed mkosi-initrd: Optionally match t64 suffix for tss2
libraries
* ec70393077 Merge pull request https://github.com/systemd/mkosi/pull/3742 from DaanDeMeyer/man
|\
| * 94cc136fbe mkosi-tools: Install man tool and pages as part of misc
profile
| * eda2ed533d Enforce C.UTF-8 locale for all commands we run
* | 9821e9a3e3 sandbox: Support using mkosi-sandbox as a library
* | 4145382edf Serialize pid in state and check if still exists on load
* | 3d119cba07 Merge pull request https://github.com/systemd/mkosi/pull/3736 from DaanDeMeyer/rpm-gpgkey
|\ \
| |/
|/|
| * 0a5d87b7bb Only pick up /etc/pki/tls and /etc/pki/ca-trust as
certificate dirs
| * c30eee187f Look for rpm gpg keys from inside the sandbox
|/
* ef2842dfea Fix version bump check if image version was passed on CLI
* 12b6251153 apt: Install apt sources if apt was installed via base tree
* a0b4e1af9a Make sure git doesn't fail when running as root
* 585a47705d repart: use --append-fstab=auto if available
* cec6ae1dda sandbox: handle case where dev node for tty doesn't exist
* a60dade823 initrd: shadow-utils removal is only necessary on old
Fedora
* ca11acbd5b Use SPDX identifier instead of file path for license in
pyproject.toml
* 4d031bc57d Revert license-files property
* c80dd09008 Merge pull request https://github.com/systemd/mkosi/pull/3722 from behrmann/versiontweaks
|\
| * c76e5dc4bc make version test more readable
| * 90ba99dde1 version: add __repr__ to GenericVersion
|/
* dd794ec832 Fix licenses path in pyproject.toml
* 7eeb749840 Merge pull request https://github.com/systemd/mkosi/pull/3702 from aafeijoo-suse/initrd-kmp
|\
| * 565b905aa1 mkosi-initrd: handle symlinks under weak-updates
| * a83ccc10c7 mkosi-initrd: perform basic checks on the kernel dir
before calling mkosi
| * 73cad79c9e mkosi-initrd: --kernel-modules-include ->
--kernel-modules
* bac76904c3 build(deps): bump github/codeql-action from 3.28.13 to
3.28.16
* 44161624a2 Supress ssh unit generation if sshd is not present
* b8758dac28 Partially revert 640000a861e9cd9a3807e4158e110a098c74d078
* 6f11937dc6 Don't use default value if optional settings are set to
none
* 640000a861 Use a default tools tree by default if mkosi.tools.conf
exists
* 63d91cc285 mkosi: Override misconfigured gitconfig HTTP/HTTPS proxy
with ProxyUrl
* a859b5eb13 Make sure we create the default workspace directory as well
For some reasons, if we are running on LXC, even if bpf_program_supported()
returned true, but bpf_program_load_kernel() failed:
```
Attaching device control BPF program to cgroup /system.slice/test-bpf-devices-875b406d56ac7bc3.scope/186c411f6e991777 failed: Operation not permitted
src/test/test-bpf-devices.c:31: Assertion failed: Expected "r" to succeed, but got error: Operation not permitted
```
Jan Vaclav [Tue, 27 May 2025 07:55:50 +0000 (09:55 +0200)]
in-addr-util: use s6_addr* macros everywhere
Currently, the code in in-addr-util.c uses a mix of accessing the
in6_u members directly, as well as using the s6_addr* macros.
Let's unify it so that the s6_addr macros are used everwhere.
This is not a trivial wrapper around user-created-buffer-based
syscall, so do not use _malloc suffix. Most of our functions
return an internally allocated buffer and this one's not special.
repart: Copy fs-verity status for CopyFiles= (#35401)
When populating a filesytem with CopyFiles=, we first copy the files to
a temporary directory. Make sure we use the (new) COPY_FS_VERITY flag
when doing that copy so that the `mkfs` that we invoke can see the files
with fs-verity enabled.
mountfsd: add call for creating a foreign UID owned dir in dir owned by caller
In order to fully support unpriv containers placed in directories owned
by the foreign UID range, below some unpriv user $HOME, we need to away
to actually create these hierarchies in the first place.
Let's add a method call for that. It takes a dir fd, then validates that
its ownership matches the client's identity, and then creates a subdir,
chown()ing it to the foreign UID range. It then returns an fd to the
result.
The result could then be passed to MountDirectory() in order to get a
mount which can then be populated by some code running in a dynamic
userns.
Let's check the leader alive state, and let's log about dbus errors.
This mimics (but is not quite identical to) what we do these days in
logind for GC'ing user sessions.
We currently pass the CopyFlags that we use to populate the temporary
directory in the form of a constant at each of the copy_tree_at() call
sites. De-duplicate that and move it into the `CopyFilesLine` struct,
initializing it from the parser.
Add our first non-constant flag: `fsverity=`. This can be set to `off`
(the default) or `copy`, in which case we copy the fs-verity state from
the source files.
This arrangement is amenable to the introduction of more flags to
`CopyFiles=` lines, if we want to add them in the future.
We currently convert the source:target pairs of the `CopyFiles=` lines
in `repart.d` files into a pairwise strv. This works great if the only
thing that can be specified is a source and a target, but we're about to
add a flags field.
Let's start by making this a bit more explicit: we now turn each
`CopyFiles=` line into a `CopyFilesLine` struct. We keep an array of
those in the `Partition` now, instead of the strv.
So far this is a whole lot of added complexity for nothing, but it's
necessary for the next step.
mkfs-util: add fsverity option to make_filesystem()
Add an fsverity flag to MkfsFlags and use it to pass the `-O verity`
option when creating an ext4 or f2fs filesystem: they share the same
argument for this.
The only other filesystem that currently supports fs-verity is btrfs and
it doesn't require a flag to be enabled when creating the filesystem.
projects / thirdparty / systemd.git / log
