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Currently, systemd-sysctl command configures kernel parameters in each sysctl
configuration files in random order due to characteristics of iterator of
Hashmap.
However, kernel parameters need to be configured in the order they occur in
each sysctl configuration files.
- For example, consider fs.suid_coredump and kernel.core_pattern. If
fs.suid_coredump=2 is configured before kernel.core_pattern= whose default
value is "core", then kernel outputs the following message:
Unsafe core_pattern used with suid_dumpable=2. Pipe handler or fully qualified core dump path required.
Note that the security issue mentioned in this message has already been fixed
on recent kernels, so this is just a warning message on such kernels. But
it's still confusing to users that this message is output on some boot and
not output on another boot.
- I don't know but there could be other kernel parameters that are significant
in the order they are configured.
- The legacy sysctl command configures kernel parameters in the order they
occur in each sysctl configuration files. Although I didn't find any official
specification explaining this behavior of sysctl command, I don't think there
is any meaningful reason to change this behavior, in particular, to the
random one.
This commit does the change by simply using OrderedHashmap instead of Hashmap.
This commit is a minor tweak after the split of `--share-system`, decoupling the `--boot`
option from IPC namespacing.
Historically there has been a single `--share-system` option for sharing IPC/PID/UTS with the
host, which was incompatible with boot/pid1 mode. After the split, it is now possible to express
the requirements with better granularity.
For reference, this is a followup to #4023 which contains references to previous discussions.
I realized too late that CLONE_NEWIPC is not strictly needed for boot mode.
Since commit 5996c7c295 (v190 !), the
calculation of the HMAC is broken because the hash for a data object
including a field is done in the wrong order: the field object is
hashed before the data object is.
However during verification, the hash is done in the opposite order as
objects are scanned sequentially.
If we find duplicates in a property-lookup, make sure to order them by
their origin. That is, matches defined "later" take precedence over
earlier matches. The "later"-order is defined by file-name + line-number
combination. That is, if a match is defined below another one in the
same hwdb file, it takes precedence, same as if it is defined in a file
ordered after another one.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Extend the hwdb to store the source file-name and file-number for each
property. We simply extend the stored value struct with the new
information. It is fully backwards compatible and old readers will
continue to work.
The libudev/sd-hwdb reader is updated in a followup.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
It is not legal to use hard-coded types to calculate offsets. We must
always use the offsets of the hwdb header to calculate those. Otherwise,
we will break horribly if run on hwdb files written by other
implementations or written with future extensions.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
NSS modules (libnss_*.so.*) need to be installed into
${rootlibdir} (typically /lib) in order to be used. Previously, the
modules were installed into ${libdir}, thus usually ending up in
/usr/lib, even on systems where split usr is enabled, or ${libdir} is
passed explicitly.
Signed-off-by: Maciek Borzecki <maciek.borzecki@gmail.com>
If Kind is not specied, the message about "Invalid Kind" was misleading.
If Kind was specified in an invalid way, we get a message in the parsing
phase anyway. Reword the message to cover both cases better.
Also update the description of drop-ins in systemd.unit(5) to say that .d
directories, not .conf files, are in /etc/system/system, /run/systemd/system,
etc.
The key used to be jammed next to the local file path. Based on the format string on line 1675, I determined that the order of arguments was written incorrectly, and updated the function based on that assumption.
Before:
```
Please write down the following secret verification key. It should be stored
at a safe location and should not be saved locally on disk.
/var/log/journal/9b47c1a5b339412887a197b7654673a7/fss8f66d6-f0a998-f782d0-1fe522/18fdb8-35a4e900
The sealing key is automatically changed every 15min.
```
After:
```
Please write down the following secret verification key. It should be stored
at a safe location and should not be saved locally on disk.
d53ed4-cc43d6-284e10-8f0324/18fdb8-35a4e900
The sealing key is automatically changed every 15min.
```
Will be used by rpm-ostree (and likely lorax) to suppress
RPM->kernel->%posttrans->dracut runs, and basically everything
else this script is doing.
I'll also likely change the `kernel.spec` to respect this as well.
We were already unconditionally using the unicode character when the
input string was not pure ASCII, leading to different behaviour in
depending on the input string.
systemd[1]: Starting printit.service.
python3[19962]: foooooooooooooooooooooooooooooooooooo…oooo
python3[19964]: fooąęoooooooooooooooooooooooooooooooo…oooo
python3[19966]: fooąęoooooooooooooooooooooooooooooooo…ąęąę
python3[19968]: fooąęoooooooooooooooooąęąęąęąęąęąęąęą…ąęąę
systemd[1]: Started printit.service.
