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The behaviour described *was* observed on Fedora 28
(systemd-238-9.git0e0aa59), with and without SELinux. I don't actually
know why though! It contradicts my understanding of the code, including an
explicit comment in the code.
Testing in a VM upgraded to v239-792-g1327f272d, this behaviour goes away.
Test case:
# /etc/systemd/system/mount-test.service
[Service]
MountFlags=shared
Type=oneshot
ExecStart=/usr/bin/ls -l /proc/1/ns/mnt /proc/self/ns/mnt
ExecStart=/usr/bin/grep ext4 /proc/self/mountinfo
Weird old behaviour: new mount namespace but / is fully shared.
lrwxrwxrwx. 1 root root 0 Sep 14 11:18 /proc/1/ns/mnt -> mnt:[4026531840]
lrwxrwxrwx. 1 root root 0 Sep 14 11:48 /proc/self/ns/mnt ->
mnt:[4026532851]
968 967 253:0 / / rw,relatime shared:1 - ext4 /dev/mapper/alan_dell_2016...
Current behaviour: / is not fully shared
lrwxrwxrwx. 1 root root 0 Sep 14 11:39 /proc/1/ns/mnt -> mnt:[4026531840]
lrwxrwxrwx. 1 root root 0 Sep 14 11:41 /proc/self/ns/mnt ->
mnt:[4026532329]
591 558 8:3 / / rw,relatime shared:313 master:1 - ext4 /dev/sda3 rw,secl...
When a link is configured, wait until there is a Router Advertisement before
attempting to start DHCPv6. The intended DHCPv6 mode will be evaluated in
ndisc_router_handler() in networkd-ndisc.c.
Arguably, libsystemd-network is (still) entirely internal API.
However there is the aim of maybe exposing it as public API.
For that reason, it cannot include internal headers from
"src/basic/".
Note how files "src/systemd/sd-*.h" don't include any systemd
headers which don't themself have an "sd-" prefix.
Fixes: d89a400ed6
It is very useful for distributions to be able to set a primary
documentation URL in a standard location so that users and
applications on the system can identify it. For example, many
headless systems these days use the "Cockpit" admin console. It
would be ideal if we could specify this location directly in the
os-release file so that any application or service could have a
well-known location for retrieving this and displaying it
appropriately. Users could likewise examine /etc/os-release to
learn this location.
Related: https://github.com/cockpit-project/cockpit/issues/10198
Signed-off-by: Stephen Gallagher <sgallagh@redhat.com>
This removes $RENAME_NOREPLACE_DIR and uses a command-line argument instead.
Logging is added, and tests are skipped if we get -EPERM or friends
(which happens on FAT and other filesystems).
0 can be a valid index returned by the BIOS, so allow that by using the
parsing function safe_atolu() to check for errors without excluding the
valid value "0".
Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Request prefix delegation for a new downstream link that is enabled
after any number of upstream DHCPv6 links. Submit the request after
the link has been configured with a link-local address.
If the upstream DHCPv6 client has already been configured to request
prefixes, attempt to re-assign any possible prefixes between the
already existing links and the new one. If no prefixes are yet
acquired, nothing will happen right away and any prefixes will be
distributed after a reply from the DHCPv6 server.
If none of the already existing downstream links have requested
DHCPv6 prefixes to be assigned, enable prefix delegation for each
client and restart them one by one if they are already running. This
causes the DHCPv6 clients to re-acquire addresses and prefixes and
to re-distribute them to all links when receiving an updated
response from their respective DHCPv6 servers. If the DHCPv6 client
in question was not already running, it is set to request prefixes
but not restarted.
When an error occurs while setting or restarting the DHCPv6 client,
log the incident and move over to the next link.
Fixes#9758.
Let's remove redundancy and not advertise "journalctl --new-id128"
anymore, now that we have "systemd-id128 new" in a proper tool.
This allows us to reduce the overly large journalctl command set a bit.
Note that this just removes the --help and man text, the call remains
available for compat reasons.
According to our CODING_STYLE our library code should generally not log
beyond LOG_DEBUG. Let's hence get rid of log_radv_warning_errno() and
just use log_radv_errno() instead.
Apparently FAT on some recent kernels can't do RENAME_NOREPLACE, and of
course cannot do linkat()/unlinkat() either (as the hard link concept
does not exist on FAT). Add a fallback using an explicit beforehand
faccessat() check. This sucks, but what we can do if the safe operations
are not available?
Fixes: #10063
While the config parser correctly handles the case of multiple IPs,
bus_append_cgroup_property was only parsing one IP,
and it would fail with "Failed to parse IP address prefix" when given
a list of IPs.
LGMT complains:
> The size argument of this snprintf call is derived from its return value,
> which may exceed the size of the buffer and overflow.
Let's make sure that r is non-negative. (This shouldn't occur unless the format
string is borked, so let's just add an assert.)
Then, let's reorder the comparison to avoid the potential overflow.
