mirror of
https://gitlab.freedesktop.org/NetworkManager/NetworkManager.git
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e6a33c04eb
It can be useful to choose a different "ipv6.addr-gen-mode". And it can be
useful to override the default for a set of profiles.
For example, in cloud or in a data center, stable-privacy might not be
the best choice. Add a mechanism to override the default via global defaults
in NetworkManager.conf:
# /etc/NetworkManager/conf.d/90-ipv6-addr-gen-mode-override.conf
[connection-90-ipv6-addr-gen-mode-override]
match-device=type:ethernet
ipv6.addr-gen-mode=0
"ipv6.addr-gen-mode" is a special property, because its default depends on
the component that configures the profile.
- when read from disk (keyfile and ifcfg-rh), a missing addr-gen-mode
key means to default to "eui64".
- when configured via D-Bus, a missing addr-gen-mode property means to
default to "stable-privacy".
- libnm's ip6-config::addr-gen-mode property defaults to
"stable-privacy".
- when some tool creates a profile, they either can explicitly
set the mode, or they get the default of the underlying mechanisms
above.
- nm-initrd-generator explicitly sets "eui64" for profiles it creates.
- nmcli doesn' explicitly set it, but inherits the default form
libnm's ip6-config::addr-gen-mode.
- when NM creates a auto-default-connection for ethernet ("Wired connection 1"),
it inherits the default from libnm's ip6-config::addr-gen-mode.
Global connection defaults only take effect when the per-profile
value is set to a special default/unset value. To account for the
different cases above, we add two such special values: "default" and
"default-or-eui64". That's something we didn't do before, but it seams
useful and easy to understand.
Also, this neatly expresses the current behaviors we already have. E.g.
if you don't specify the "addr-gen-mode" in a keyfile, "default-or-eui64"
is a pretty clear thing.
Note that usually we cannot change default values, in particular not for
libnm's properties. That is because we don't serialize the default
values to D-Bus/keyfile, so if we change the default, we change
behavior. Here we change from "stable-privacy" to "default" and
from "eui64" to "default-or-eui64". That means, the user only experiences
a change in behavior, if they have a ".conf" file that overrides the default.
https://bugzilla.redhat.com/show_bug.cgi?id=1743161
https://bugzilla.redhat.com/show_bug.cgi?id=2082682
See-also: https://github.com/coreos/fedora-coreos-tracker/issues/907
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1213
137 lines
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137 lines
2.2 KiB
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size: 258
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location: src/tests/client/test-client.py:test_offline()/1
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cmd: $NMCLI g
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lang: C
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returncode: 1
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stderr: 136 bytes
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>>>
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Error: Could not create NMClient object: Key/Value pair 0, 'invalid', in address element 'very:invalid' does not contain an equal sign.
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<<<
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size: 312
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location: src/tests/client/test-client.py:test_offline()/2
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cmd: $NMCLI --offline c add type ethernet
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lang: C
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returncode: 0
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stdout: 162 bytes
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>>>
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[connection]
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id=ethernet
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uuid=UUID-WAS-HERE-BUT-IS-NO-MORE-SADLY
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type=ethernet
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[ethernet]
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[ipv4]
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method=auto
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[ipv6]
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addr-gen-mode=default
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method=auto
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[proxy]
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<<<
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size: 183
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location: src/tests/client/test-client.py:test_offline()/3
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cmd: $NMCLI --offline c show
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lang: C
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returncode: 2
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stderr: 47 bytes
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>>>
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Error: command doesn't support --offline mode.
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<<<
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size: 178
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location: src/tests/client/test-client.py:test_offline()/4
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cmd: $NMCLI --offline g
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lang: C
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returncode: 2
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stderr: 47 bytes
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>>>
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Error: command doesn't support --offline mode.
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<<<
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size: 176
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location: src/tests/client/test-client.py:test_offline()/5
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cmd: $NMCLI --offline
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lang: C
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returncode: 2
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stderr: 47 bytes
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>>>
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Error: command doesn't support --offline mode.
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<<<
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size: 436
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location: src/tests/client/test-client.py:test_offline()/6
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cmd: $NMCLI --offline c add type wifi ssid lala 802-1x.eap pwd 802-1x.identity foo 802-1x.password bar
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lang: C
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returncode: 0
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stdout: 225 bytes
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>>>
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[connection]
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id=wifi
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uuid=UUID-WAS-HERE-BUT-IS-NO-MORE-SADLY
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type=wifi
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[wifi]
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mode=infrastructure
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ssid=lala
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[802-1x]
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eap=pwd;
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identity=foo
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password=bar
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[ipv4]
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method=auto
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[ipv6]
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addr-gen-mode=default
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method=auto
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[proxy]
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<<<
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size: 474
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location: src/tests/client/test-client.py:test_offline()/7
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cmd: $NMCLI --offline c add type wifi ssid lala 802-1x.eap pwd 802-1x.identity foo 802-1x.password bar 802-1x.password-flags agent-owned
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lang: C
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returncode: 0
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stdout: 229 bytes
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>>>
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[connection]
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id=wifi
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uuid=UUID-WAS-HERE-BUT-IS-NO-MORE-SADLY
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type=wifi
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[wifi]
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mode=infrastructure
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ssid=lala
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[802-1x]
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eap=pwd;
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identity=foo
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password-flags=1
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[ipv4]
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method=auto
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[ipv6]
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addr-gen-mode=default
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method=auto
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[proxy]
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<<<
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size: 199
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location: src/tests/client/test-client.py:test_offline()/8
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cmd: $NMCLI --complete-args --offline conn modify ipv6.ad
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lang: C
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returncode: 0
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stdout: 34 bytes
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>>>
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ipv6.addresses
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ipv6.addr-gen-mode
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<<<
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