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device: remove the prefix-delegation IP configuration on cleanup

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When a device in IPv6 shared mode obtains a prefix, it adds a new l3cd
of type L3_CONFIG_DATA_TYPE_PD_6 for that prefix. However, that l3cd
is never removed later and so the address lingers on the interface
even after the connection goes down. Remove the l3cd on cleanup.

(cherry picked from commit 4a8bedcd89)
This commit is contained in:
Beniamino Galvani 2025-03-11 09:41:47 +01:00
parent 2fe69da6fd
commit 9c74fa8e36
1 changed files with 2 additions and 0 deletions
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2
src/core/devices/nm-device.c
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@ -13418,6 +13418,8 @@ _dev_ipsharedx_cleanup(NMDevice *self, int addr_family)
nm_clear_l3cd(&priv->ipshared_data_4.v4.l3cd);
_dev_l3_register_l3cds_set_one(self, L3_CONFIG_DATA_TYPE_SHARED_4, NULL, FALSE);
} else {
_dev_l3_register_l3cds_set_one(self, L3_CONFIG_DATA_TYPE_PD_6, NULL, FALSE);
}
_dev_ipsharedx_set_state(self, addr_family, NM_DEVICE_IP_STATE_NONE);