Seems with LTO the compiler can sometimes think that thes variables are
uninitialized. Usually those code paths are only after an assertion was
hit (g_return*()), but we still need to workaround the warning.
A profile can configure "connection.wait-device-timeout" to indicate
that startup complete is blocked until a suitable device around.
This is useful for NetworkManager-wait-online and initrd mode.
Previously, we looked at NMPlatform whether a link with matching
interface-name was present. That is wrong because it cannot handle
profiles that rely on "ethernet.mac-address" setting or other "match"
settings. Also, the mere presence of the link does not yet mean
that the NMDevice was created and ready. In fact, there is a race here:
NMPlatform indicates that the device is ready (unblocking NMSettings),
but there is no corresponding NMDevice yet which keeps NetworkManager
busy to block startup complete.
Rework this. Now, only check whether there is a compatible device for
the profile.
Since we wait for compatible devices, it works now not only for the
interface name. Note that we do some optimizations so that we don't have
to re-evaluate all profiles (w.r.t. all devices) whenever something on the
device changes: we only care about this when all devices finally become
ready.
Also, we no longer start the timeout for "connection.wait-device-timeout"
when the profile appears. Instead, there is one system-wide start time
(NMSettingsPrivate.startup_complete_start_timestamp_msec). That simplifies
code and makes sense: we start waiting when NetworkManager is starting, not
when the profile gets added. Also, we wait for all profiles to become
ready together.
Make the error handling similar to the other provider implementations.
- only actually return once all callbacks completed.
- cache the first error and report it.
- drop AzureData.success field. It is redundant to have AzureData.error set.
Also it was actually unused.
- ensure that we keep the first error passed during
_get_config_maybe_task_return(). Once we set an error, that error gets
returned. There is a twist here, that we prefer cancellation errors
over other error reasons.
- drop GCPData.success field. It is redundant to have GCPData.error set.
Also, it's meaningless to indicate failure, if we don't have an error
at hand.
- ensure that we keep the first error passed during
_get_config_maybe_task_return(). Once we set an error, that error gets
returned. There is a twist here, that we prefer cancellation errors
over other error reasons.
- in _get_config_fip_cb(), ensure to call _get_config_maybe_task_return()
even if we are not yet ready. That is useful to record a potential
error.
If the list of addresses, routes and rules is empty, we still want to mangle
the applied connection, to also have an empty list.
nm-cloud-setup has certain expectations. For example, that the static addresses,
routes and rules of the active connection is entirely under the control of the
tool. For example, so it usually replaces the lists entirely. It also should do
that, if the new list is empty.
Maybe, one day there could be more complex merging strategies, where the user could
also add static addresses, routes, or rules to the profile, and nm-cloud-setup
would preserve them. However, that is not implemented, nor is it clear how exactly
that would work.
Without this, `nmcli device modify "$DEVICE"` leads to a crash. At least
since commit c5d45848dd ('cli: mark argv argument for command line
parsing as const'), when this happens.
That is, because it passes a NULL strv array with argc being set to
zero. nmc_process_connection_properties() is not supposed to access
the array, if there are no elements there.
Fixes: c5d45848dd ('cli: mark argv argument for command line parsing as const')
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/issues/492
When configuring miimon settings, the updelay/downdelay fields with
value zero may not be stored in the setting.
For example:
- have a profile with "mode=balance-rr,arp_interval=11,arp_ip_target=10.10.10.1,miimon=10"
Switch the link monitoring mode to "MII" and press <OK>. Previously,
the change of the link monitoring did not update the settings, and
nothing was changed.
- when loading settings, initialize all fields with the values from the
settings, regardless whether they are currently visible or not.
Otherwise, if you edit a profile with
"mode=balance-rr,arp_interval=11,arp_ip_target=10.10.10.1,miimon=10"
and switch link monitoring mode to "MII", the miimon setting was not
initialized to 10.
- accept empty bond settings, for example for updelay. In that case,
initialize the text input to "0". Likewise, when the text entry is
empty, set the bond option to the respective default.
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/issues/488
Before 1.24, nm_setting_bond_add_option() would clear
miimon/arp_interval settings when the respective other was set.
That was no longer done, with the effect that enabling (for example)
miimon on a bond profile that has arp_interval enabled, sets both
conflicting options.
That is not a severe problem, because the profile still validates.
However, at runtime only one of the settings can be actually configured.
Fix that, by restoring the previous behavior for the client. But note
that this time it's implemented in the client, and not in libnm's
nm_setting_bond_add_option().
$ nmcli -f GENERAL.HWADDR device show ovsport0
GENERAL.HWADDR: (unknown)
but:
$ nmcli -f GENERAL.HWADDR --terse device show ovsport0
GENERAL.HWADDR:
This is an API change of nmcli.
nm_http_client_poll_get_finish() can only either succeed (returning TRUE
and setting no GError), or failing (returning FALSE and setting GError).
Checking for both is redundant and unnecessary.
Since commit 3bd30f6064 ('nmcs: add error message when a HTTP request times
out'), the case where polling returns %FALSE without an error is no
longer possible. This is preferable, because it follows a consistent
API where a function clearly fails or succeeds.
So, checking for the error code and the returned boolean is redundant and
unnecessary.
nm_utils_parse_next_line() operates on the response buffer obtained
from NMHttpClient. We own this buffer, and we also can rely on the fact
that the buffer has a trailing NUL byte after the data.
There is no need to copy the string to a GString, just use it directly.
nm_utils_parse_next_line() operates on the response buffer obtained
from NMHttpClient. We own this buffer, and we also can rely on the fact
that the buffer has a trailing NUL byte after the data.
There is no need to clone the string to a GString, just use it directly.
The behavior is documented at various places, so this assert is less
to actually assert it, but as making this condition obvious to the
reader of the code.
NMHttpClient guarantees that the returned response is %NUL terminated after the
returned length of the buffer. That guarantee is important and should be documented.
It's not a severe issue, because the GetConfigMetadataData struct is
larger than GetConfigMetadataMac.
Fixes: 69f048bf0c ('cloud-setup: add tool for automatic IP configuration in cloud')
Kernel (sysfs) and iproute2 only use numbers for the multicast_router
option. It's confusing that we name the options differently. Anyway,
that cannot be changed anymore. Clarify the meanings in the
documentation.
https://bugzilla.redhat.com/show_bug.cgi?id=1845608
This add a provider implementation for GCP that when detected fetches
the ip addresses of configured internal load balancers.
Once this information is fetched from the metadata server it instructs
NetworkManager to add local routes for each found forwarded-ip.
https://bugzilla.redhat.com/show_bug.cgi?id=1821787
libcurl's documentation for CURLMOPT_TIMERFUNCTION requires the
application to install a non-repeating timer.
https://curl.haxx.se/libcurl/c/CURLMOPT_TIMERFUNCTION.html
So let's remove the GSource once expired.
Fixes: 69f048bf0c ('cloud-setup: add tool for automatic IP configuration in cloud')
Since just a single pointer is used to store the socket's GSource
if more than 1 consecutive request was done through the same
HTTP provider the 2nd request would clear the GSource associated to
the second request causing the 1st HTTP request to never complete
and end up in a expired timeout.
Use a hashtable instead so we can correctly track all requests.
https://bugzilla.redhat.com/show_bug.cgi?id=1821787
Fixes: 69f048bf0c ('cloud-setup: add tool for automatic IP configuration in cloud')
For simple matches like match.interface-name, match.driver, and
match.path, arguably what we had was fine. There each element
(like "eth*") is a wildcard for a single name (like "eth1").
However, for match.kernel-command-line, the elements match individual
command line options, so we should have more flexibility of whether
a parameter is optional or mandatory. Extend the syntax for that.
- the elements can now be prefixed by either '|' or '&'. This makes
optional or mandatory elements, respectively. The entire match
evaluates to true if all mandatory elements match (if any) and
at least one of the optional elements (if any).
As before, if neither '|' nor '&' is specified, then the element
is optional (that means, "foo" is the same as "|foo").
- the exclamation mark is still used to invert the match. If used
alone (like "!foo") it is a shortcut for defining a mandatory match
("&!foo").
- the backslash can now be used to escape the special characters
above. Basically, the special characters ('|', '&', '!') are
stripped from the start of the element. If what is left afterwards
is a backslash, it also gets stripped and the remainder is the
pattern. For example, "\\&foo" has the pattern "&foo" where
'&' is no longer treated specially. This special handling of
the backslash is only done at the beginning of the element (after
the optional special characters). The remaining string is part
of the pattern, where backslashes might have their own meaning.
This change is mostly backward compatible, except for existing matches
that started with one of the special characters '|', '&', '!', and '\\'.
The connection is automatically unreferenced when the function
returns.
Fixes: 9c5ea0917d ('devices: reuse the hotspot connection if we find appropriate one'):
Add a new "path" property to the match setting, which can be used to
restrict a connection to devices with a given hardware path. The new
property is a list of patterns that are matched against the ID_PATH
udev property of devices.
ID_PATH represents the topological persistent path of a device and
typically contains a subsystem string (pci, usb, platform, etc.) and a
subsystem-specific identifier. Some examples of paths are:
pci-0000:00:02.0
pci-0000:00:14.0-usb-0:5:1.0
platform-1c40000.ethernet
systemd-networkd also has a "Path=" option to match a device by udev
ID_PATH.
