Add a new key management option to support WPA3 Enteprise wifi
connection.
Only supported with wpa_supplicant for the time being.
Signed-off-by: Antonio Cardace <acardace@redhat.com>
In C, includes with <> are for system headers, while "" prefers the
current working directory (implementation defined).
For libnm headers that include other libnm headers, we tend to use
"" instead of <>. That makes sense to me. Be consistent about that.
NetworkManager is now able to configure veth interfaces throught the
NMSettingVeth. Veth interfaces only have "peer" property.
In order to support Veth interfaces in NetworkManager the design need
to pass the following requirements:
* Veth setting only has "peer" attribute.
* Ethernet profiles must be applicable to Veth interfaces.
* When creating a veth interface, the peer will be managed by
NetworkManager but will not have a profile.
* Veth connection can reapply only if the peer has not been modified.
* In order to modify the veth peer, NetworkManager must deactivate the
connection and create a new one with peer modified.
In general, it should support the basis of veth interfaces but without
breaking any existing feature or use case. The users that are using veth
interfaces as ethernet should not notice anything changed unless they
specified the veth peer setting.
Creating a Veth interface in NetworkManager is useful even without the
support for namespaces for some use cases, e.g "connecting one side of
the veth to an OVS bridge and the other side to a Linux bridge" this is
done when using OVN kubernetes [1][2]. In addition, it would provide
persistent configuration and rollback support for Veth interfaces.
[1] https://bugzilla.redhat.com/show_bug.cgi?id=1885605
[2] https://bugzilla.redhat.com/show_bug.cgi?id=1894139
Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net>
We can generate "generate-docs-nm-settings-nmcli.xml" by running "clients/cli/generate-docs-nm-settings-nmcli".
However, during cross compilation, that binary gets build in the target architecture,
it can thus not run to generate the XML.
Note that "--enable-gtk-doc" requires "--enable-introspection".
For generating "settings-docs.h" we (only) need introspection/pygobject.
We also have a pre-generated .in file that we can use if introspection
is not available. Since we have a pre-generated variant, it would be fine
to always use that one. However, we want to use generate the file if we
have the necessary dependencies, because thereby we can check whether
the pre-generated file is identical to what would be generated.
We have a similar problem with "generate-docs-nm-settings-nmcli.xml".
However there we don't need introspection, but merely being able to
execute a binary that we build. That does not work during cross
compilation, so we will honor "--enable-gtk-doc" flag to decide when
to generate the file.
For consistency, also adjust the condition for "settings-docs.h" to only
generate the file if we have "--enable-gtk-doc" (but not it we build
with "--enable-introspection" alone).
With glib2-2.67.0-1.fc34.x86_64.rpm, clang-11.0.0-2.fc34.x86_64.rpm, the
generated code emits a compiler warning:
libnm-core/tests/nm-core-tests-enum-types.c:17:7: error: passing 'typeof (*(&g_define_type_id__volatile)) *' (aka 'volatile unsigned long *') to parameter of type 'gsize *' (aka 'unsigned long *') discards qualifiers [-Werror,-Wincompatible-pointer-types-discards-qualifiers]
if (g_once_init_enter (&g_define_type_id__volatile))
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/glib-2.0/glib/gthread.h:260:7: note: expanded from macro 'g_once_init_enter'
(!g_atomic_pointer_get (location) && \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/glib-2.0/glib/gatomic.h:112:38: note: expanded from macro 'g_atomic_pointer_get'
__atomic_load (gapg_temp_atomic, &gapg_temp_newval, __ATOMIC_SEQ_CST); \
^~~~~~~~~~~~~~~~~
libnm-core/tests/nm-core-tests-enum-types.c:40:7: error: passing 'typeof (*(&g_define_type_id__volatile)) *' (aka 'volatile unsigned long *') to parameter of type 'gsize *' (aka 'unsigned long *') discards qualifiers [-Werror,-Wincompatible-pointer-types-discards-qualifiers]
if (g_once_init_enter (&g_define_type_id__volatile))
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/glib-2.0/glib/gthread.h:260:7: note: expanded from macro 'g_once_init_enter'
(!g_atomic_pointer_get (location) && \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/glib-2.0/glib/gatomic.h:112:38: note: expanded from macro 'g_atomic_pointer_get'
__atomic_load (gapg_temp_atomic, &gapg_temp_newval, __ATOMIC_SEQ_CST); \
^~~~~~~~~~~~~~~~~
libnm-core/tests/nm-core-tests-enum-types.c:63:7: error: passing 'typeof (*(&g_define_type_id__volatile)) *' (aka 'volatile unsigned long *') to parameter of type 'gsize *' (aka 'unsigned long *') discards qualifiers [-Werror,-Wincompatible-pointer-types-discards-qualifiers]
if (g_once_init_enter (&g_define_type_id__volatile))
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/glib-2.0/glib/gthread.h:260:7: note: expanded from macro 'g_once_init_enter'
(!g_atomic_pointer_get (location) && \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/glib-2.0/glib/gatomic.h:112:38: note: expanded from macro 'g_atomic_pointer_get'
__atomic_load (gapg_temp_atomic, &gapg_temp_newval, __ATOMIC_SEQ_CST); \
^~~~~~~~~~~~~~~~~
We could pass "-Wincompatible-pointer-types-discards-qualifiers" as CFLAGS
when building this file. However, we have a workaround in our "nm-glib-aux/nm-glib.h",
so we can instead include "nm-default.h". At first glance, that might look like
the less preferable solution. However, this file is only there for unit tests,
and we also include "nm-default.h" for other sources that are generated with
"glib-mkenums". So, doing it also for our tests becomes the preferable solution.
NML3Cfg already handles IPv4 ACD. IPv4LL is just a small additional
layer on top of that, so it makes sense that it also is handled by
NML3Cfg.
Also, the overall goal is that multiple NMDevice and NMVpnConnection
instances can cooperate independently. So if multiple "users" enable
IPv4LL on an interface, then we should only run it once. This is
achieved by NML3IPv4LL's API where users register what they want,
and NML3IPv4LL figures out what that means as a whole.
Also, we thus will no longer need to use sd_ipv4ll/n-ipv4ll, because
we implement it ourself.
Currently, NMDevice does ACD. It intercepts certain NMIP4Config
instances, and tries to perform ACD on the addresses. I think this
functionality should be handled by NML3Cfg instead.
For one, NML3Cfg sees all configurations, and can perform ACD for all
(relevant) addresses. Also, it moves logic away from NMDevice and makes
the functionality available without an NMDevice. As such, it also will
allow that independent "controllers" contribute NML3ConfigData instances
and ACD will performed for all of them (as requested).
This will be our implementation for IPv4 ACD (https://tools.ietf.org/html/rfc5227)
based on nettools' n-acd library.
The code is not actually tested yes, because NMDevice did not yet switch
over to use NML3Cfg. Once that happens, surely issues with this patch
will be found that will need fixing.
nmcli is build with libtool, so "clients/cli/nmcli" is really a shell script
that invokes the real nmcli (at "clients/cli/.libs/nmcli").
When building with LTO for some reasons "clients/cli/nmcli" still
does some build steps during the first invocation.
That means, if we run `make check-local-clients-tests-test-client` it
would first do the final build step. This takes a while, and the test
times out (worse, we do that build step many times in parallel).
Avoid that by invoking "clients/cli/nmcli" first.
We use a linker version script "NetworkManager.ver", to hide
symbols from NetworkManager that are not used. That is important
due to our habit of using internal helper libraries that we link
statically everywhere, without handpicking the symbols we actually
need. We want the tooling to get rid of unnecessary symbols.
However, NetworkManager loads shared libraries for settings and device
plugins. These libraries require symbols from the NetworkManager binary,
but which one depends on build options. Hence, we also generate
"NetworkManager.ver" by the "tools/create-exports-NetworkManager.sh"
script.
For that the script uses "nm" to find symbols that are undefined in the
plugin libraries but defined in NetworkManager. With autotools the
script looked at "./src/.libs/libNetworkManager.a" to find the present
symbols. Note that for meson that already didn't work, and we build
instead an intermediate NetworkManager binary first (with all symbols
exposed). With LTO, "nm" doesn't find all symbols in
"./src/.libs/libNetworkManager.a", and consequently they are not
exported and dropped/hidden.
This also causes unit tests to fail with LTO, because our test script
"tools/check-exports.sh" catches such bugs.
Fix that by also with autotools generate a complete "NetworkManager-all-sym"
binary that is used to generate "NetworkManager.ver", before rebuilding
"NetworkManager" again.
NMIP[46]Config will become much simpler than it is today.
It's sole responsibility will be to expose current settings
on D-Bus, in it's function as a NMDBusObject subtype.
However, it still make sense to let them share a common base class.
Add it.
Currently NMIP4Config and NMIP6Config both track the data to be
configured, they expose properties on D-Bus, and they have logic for
capturing and applying settings to platform.
We will split that.
- NMIP4Config and NMIP6Config will expose data on D-Bus.
- NML3Cfg will have the logic for handling IP configuration.
- NML3ConfigData will track data to be configured.
NML3ConfigData mirrors NMIP4Config/NMIP6Config in many aspects. For now,
this duplicates a lot of code. More will be done later. Eventually,
NMIP4Config/NMIP6Config will drop the duplicated functionality.
Our "nm-json-aux.h" redefines various things from <jansson.h> header.
Add a unit test that checks that what we redefine exactly matches what
libjansson would provide, so that they are compatible.
They serve a similar purpose.
Previously, nm-json-aux.h contained the virtual function table for accessing
the dynamically loaded libjansson. But there is no reason why our own
helper functions from nm-json.h cannot be there too.
nm-json.[hc] uses libjansson, but only loads it at runtime with dlopen. There
is no more run compile time dependency. Move it to shared, so that it can be
(theoretically) used by other components.
Also, drop the conditional compilation. Granted, if you don't build with
libjansson enabled, then the JANSSON_SONAME define is unset and the code
will fail to load at runtime (which is fine). However, we can still build
against our JSON wrappers. The code savings of conditional build are minimal
so drop it.
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
If python black is install then it would check the
formating of all of the python files and test the for it.
Otherwise, it would just simply ignore the python black
if python black is not installed.
It would seem that the proper dependency is "man/.dirstamp". But that just
doesn't work. Use "man/common.ent" instead. If you figure out how to
convince autotools to make .dirstamp working, send a patch.
Especially for "nm-settings-docs-nmcli.xml", the first XML to merge is
"clients/cli/generate-docs-nm-settings-nmcli.xml". That file is
generated with the meta data from nmcli, and it contains all the
properties that are supported. Properties from other XML files,
that are passed as additional arguments should not be merged.
In most cases, there is no difference. It only matters for
"ipv6.dad-timeout" and "user.data". For example, "ipv6.dad-timeout"
is supported by GObject (part of "libnm/nm-settings-docs-gir.xml"),
but not by nmcli. Don't include it in the manual.
This also drops the now empty settings "dummy", "user", and "generic".
We have the correct meta-data of supported properties for nmcli. It is
in clients/common. Use that for generating the manual page instead of
the properties that are part of libnm (some properties may be in libnm
but not supported by nmcli, or some properties may not be GObject
properties, and not detected as by GObject introspection).
"nm-settings-docs-nmcli.xml" will be generated by a tool that depends on
"clients/common/". The file should thus not be in libnm directory, otherwise
there is a circular dependency.
Move the file to "man/" directory.
For consistency, also move "nm-settings-docs-dbus.xml". Note that we
cannot move "nm-settings-docs-gir.xml" to "man/", because that one is
needed for building clients.
Like the previous commit. Move code that depends on libnm out
of shared to avoid circular dependency.
Also add a readme file explaining the reason for existence of
the helper library.
Like the previous commit. Move code that depends on libnm-core out
of shared to avoid circular dependency.
Also add a readme file explaining the reason for existence of
the helper libraries nm-libnm-core-intern and nm-libnm-core-aux.
The "shared" directory is used by libnm-core, it should thus only depend on
code that is in the "shared" directory. Otherwise there is a circular
dependency, and meson's subdir() does not work nicely.
Also, libnm-core is really part of (and also an extension of) libnm-core,
so it belongs there.
I guess, the original idea was that this is also an extension for libnm,
so another project could take these utility functions (by copying them
into their source tree) and use them. That is still possible, it's
just that the sources are no longer under the shared directory.
Also add a readme to explain the non-obvious meaning of these files.
Originally, these files were part of libnm-core and linked together.
However, that is a licensing violation, because the code is GPL-2.0+
licensed, while libnm-core also gets linked with libnm (it must thus
be LGPL-2.1+). The original intent behind moving the code to "shared/"
was to avoid the licensing issue, but also to prepare when we would add
a separate, GPL licensed libnm-keyfile. However, currently we hope to
be able to relicense the code, so that it actually could be exposed as
part of libnm. This is work in progress at ([1]).
[1] https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/ ## 517
Anyway, the current directory layout is problematic. libnm-keyfile
depends on libnm-core, while libnm-core depends on code under shared.
That means, there is a circular dependency and meson's subdir() does
not work well.
Move the code.
A significant part of NetworkManager's API are the connection profiles, documented
in `man nm-settings*`. But there are different aspects about profiles, depending
on what you are interested. There is the D-Bus API, nmcli options, keyfile format,
and ifcfg-rh format. Additionally, there is also libnm API.
Add distinct manual pages for the four aspects. Currently the two new manual
pages "nm-settings-dbus" and "nm-settings-nmcli" are still identical to the
former "nm-settings.5" manual. In the future, they will diverge to
account for the differences.
There are the following aspects:
- "dbus"
- "keyfile"
- "ifcfg-rh"
- "nmcli"
For "libnm" we don't generate a separate "nm-settings-libnm" manual
page. That is instead documented via gtk-doc.
Currently the keyfile and ifcfg-rh manual pages only detail settings
which differ. But later I think also these manual pages should contain
all settings that apply.
