Age | Commit message (Collapse) | Author |
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Lets go further and make /lib/modules/ inaccessible for services that do
not have business with modules, this is a minor improvment but it may
help on setups with custom modules and they are limited... in regard of
kernel auto-load feature.
This change introduce NameSpaceInfo struct which we may embed later
inside ExecContext but for now lets just reduce the argument number to
setup_namespace() and merge ProtectKernelModules feature.
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The rawio system calls were filtered, but CAP_SYS_RAWIO allows to access raw
data through /proc, ioctl and some other exotic system calls...
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This just adds capabilities test.
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This is useful to turn off explicit module load and unload operations on modular
kernels. This option removes CAP_SYS_MODULE from the capability bounding set for
the unit, and installs a system call filter to block module system calls.
This option will not prevent the kernel from loading modules using the module
auto-load feature which is a system wide operation.
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Enhance nspawn debug logs for mount/unmount operations
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Allowed paths are unified betwen the configuration file parses and the bus
property checker. The biggest change is that the bus code now allows "block-"
and "char-" classes. In addition, path_startswith("/dev") was used in the bus
code, and startswith("/dev") was used in the config file code. It seems
reasonable to use path_startswith() which allows a slightly broader class of
strings.
Fixes #3935.
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Add a dbus object to represent dhcp leases and their raw options (i.e.
options 224-254).
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If `--test` command line option was passed, the systemd set skip_setup
to true during bootup. But after this we check again that arg_action is
test or help and opens pager depends on result.
We should skip setup in a case when `--test` is passed, but it is also
safe to set skip_setup in a case of `--help`. So let's remove first
check and move skip_setup = true to the second check.
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Fixes:
host# systemd-nspawn -D ... -U -b systemd.unit=multi-user.target
...
$ grep /tmp /proc/self/mountinfo
154 145 0:41 / /tmp rw - tmpfs tmpfs rw,seclabel,uid=1036124160,gid=1036124160
$ umount /tmp
umount: /root/tmp: not mounted
$ systemctl poweroff
...
[FAILED] Failed unmounting Temporary Directory.
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This makes it easier to debug failed nspawn invocations:
Mounting sysfs on /var/lib/machines/fedora-rawhide/sys (MS_RDONLY|MS_NOSUID|MS_NOEXEC|MS_NODEV "")...
Mounting tmpfs on /var/lib/machines/fedora-rawhide/dev (MS_NOSUID|MS_STRICTATIME "mode=755,uid=1450901504,gid=1450901504")...
Mounting tmpfs on /var/lib/machines/fedora-rawhide/dev/shm (MS_NOSUID|MS_NODEV|MS_STRICTATIME "mode=1777,uid=1450901504,gid=1450901504")...
Mounting tmpfs on /var/lib/machines/fedora-rawhide/run (MS_NOSUID|MS_NODEV|MS_STRICTATIME "mode=755,uid=1450901504,gid=1450901504")...
Bind-mounting /sys/fs/selinux on /var/lib/machines/fedora-rawhide/sys/fs/selinux (MS_BIND "")...
Remounting /var/lib/machines/fedora-rawhide/sys/fs/selinux (MS_RDONLY|MS_NOSUID|MS_NOEXEC|MS_NODEV|MS_BIND|MS_REMOUNT "")...
Mounting proc on /proc (MS_NOSUID|MS_NOEXEC|MS_NODEV "")...
Bind-mounting /proc/sys on /proc/sys (MS_BIND "")...
Remounting /proc/sys (MS_RDONLY|MS_NOSUID|MS_NOEXEC|MS_NODEV|MS_BIND|MS_REMOUNT "")...
Bind-mounting /proc/sysrq-trigger on /proc/sysrq-trigger (MS_BIND "")...
Remounting /proc/sysrq-trigger (MS_RDONLY|MS_NOSUID|MS_NOEXEC|MS_NODEV|MS_BIND|MS_REMOUNT "")...
Mounting tmpfs on /tmp (MS_STRICTATIME "mode=1777,uid=0,gid=0")...
Mounting tmpfs on /sys/fs/cgroup (MS_NOSUID|MS_NOEXEC|MS_NODEV|MS_STRICTATIME "mode=755,uid=0,gid=0")...
Mounting cgroup on /sys/fs/cgroup/systemd (MS_NOSUID|MS_NOEXEC|MS_NODEV "none,name=systemd,xattr")...
Failed to mount cgroup on /sys/fs/cgroup/systemd (MS_NOSUID|MS_NOEXEC|MS_NODEV "none,name=systemd,xattr"): No such file or directory
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- check for oom after strdup
- no need to truncate the line since we're only extracting one field anyway
- use STR_IN_SET
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We would check the condition cg_ns_supported() twice. No functional
change.
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used (#4347)
If stdin is supplied as an fd for transient units (using the
StandardInputFileDescriptor pseudo-property for transient units), then we
should also fix up the TTY ownership, not just when we opened the TTY
ourselves.
This simply drops the explicit is_terminal_input()-based check. Note that
chown_terminal() internally does a much more appropriate isatty()-based check
anyway, hence we can drop this without replacement.
Fixes: #4260
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It was introduced but never used in 45ec7efb.
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Various smaller documentation fixes.
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Add an "invocation ID" concept to the service manager
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also have a unit state of that name
Fixes: #3971
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log_error method is used instead of fprintf
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Fix for #4275 and more
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r was not initialized and would be used if "tcp" was the only option
used for the stub. We should initialize it to 0 to indicate that no
error happened in the udp case.
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Journal remote non blocking
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We do the same thing in two branches, let's merge them. Let's also add an
explanatory comment, while we are at it.
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whether it is a command or a daemon
SIGTERM should be considered a clean exit code for daemons (i.e. long-running
processes, as a daemon without SIGTERM handler may be shut down without issues
via SIGTERM still) while it should not be considered a clean exit code for
commands (i.e. short-running processes).
Let's add two different clean checking modes for this, and use the right one at
the appropriate places.
Fixes: #4275
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When we print information about PID 1's crashdump subprocess failing. In this
case we *know* that we do not generate LSB exit codes, as it's basically PID 1
itself that exited there.
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Previously we've used free_and_strdup() to fill arg_default_unit with unit
name, If we didn't pass default unit name through a kernel command line or
command line arguments. But we can use just strdup() instead of
free_and_strdup() for this, because we will start fill arg_default_unit
only if it wasn't set before.
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Let's get rid of is_clean_exit_lsb(), let's move the logic for the special
handling of the two LSB exit codes into the sysv-generator by writing out
appropriate SuccessExitStatus= lines if the LSB header exists. This is not only
semantically more correct, bug also fixes a bug as the code in service.c that
chose between is_clean_exit_lsb() and is_clean_exit() based this check on
whether a native unit files was available for the unit. However, that check was
bogus since a long time, since the SysV generator was introduced and native
SysV script support was removed from PID 1, as in that case a unit file always
existed.
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We are going to add this child as a source to our event loop so we don't
want to block when reading data from it as this will prevent us from
processing other events. Specifically this will block the signalfds
which means if we are waiting for data from curl we won't handle SIGTERM
or SIGINT until we happen to get more data.
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Let's make sure it's in the same order as the actual enum defining the exit
statuses.
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Do not make up our own type for ExitStatus, but use the type used by POSIX for
this, which is "int". In particular as we never used that type outside of the
definition of exit_status_to_string() where we internally cast the paramter to
(int) every single time we used it.
Hence, let's simplify things, drop the type and use the kernel type directly.
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nspawn --private-users parsing, v2
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errno (#4328)
as @poettering suggested in the #4320
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Autodetect systemd version in containers started by systemd-nspawn
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In particular, the check for arg_uid_range <= 0 is moved to the end, so that
"foobar:0" gives "Failed to parse UID", and not "UID range cannot be 0.".
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This is like the previous reverted commit, but any boolean is still accepted,
not just "yes" and "no". Man page is adjusted to match the code.
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This reverts commit bfd292ec35c7b768f9fb5cff4d921f3133e62b19.
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It is impossible to ship a fully generic PAM configuration upstream.
Therefore, ship a minimal configuration with the systemd --user requirements,
and add a note to DISTRO_PORTING documenting this.
Fixes #4284
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A fix to get resolved to start in userns
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systemd fills arg_default_unit during startup with default.target
value. But arg_default_unit may be overwritten in parse_argv() or
parse_proc_cmdline_item().
Let's check value of arg_default_unit after calls of parse_argv()
and parse_proc_cmdline_item() and fill it with default.target if
it wasn't filled before. In this way we will not spend unnecessary
time to for filling arg_default_unit with default.target.
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The make_null_stdio() may fail. Let's check its result and print
warning message instead of keeping silence.
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When running in a user namespace without private networking, resolved would
fail to start. There isn't much difference between EADDRINUSE and EPERM,
so treat them the same, except for the warning message text.
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Make sure an error is always printed… When systemd-resolved is started in a
user namespace without private network, it would fail on setsockopt, but the
error wouldn't be particularly informative:
"Failed to start manager: permission denied."
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Nspawn arguments parsing and man page update
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