If a commit is invoked without any change to the l3cd or to the ACD
data, in _l3cfg_update_combined_config() we skip calling
_l3_acd_data_add_all(), which should clear the dirty flag from ACDs.
Therefore, in case of such no-op commits the ACDs still marked as
dirty - but valid - are removed via:
_l3_commit()
_l3_acd_data_process_changes()
_l3_acd_data_prune()
_l3_acd_data_prune_one()
Invoking a l3cfg commit without any actual changes is allowed, see the
explanation in commit e773559d9d ('device: schedule an idle commit
when setting device's sys-iface-state').
The bug is visible by running test 'bond_addreses_restart_persistence'
with IPv4 ACD/DAD is enabled by default: after restart IPv6 completes
immediately, the devices becomes ACTIVATED, the sys-iface-state
transitions from ASSUME to MANAGED, a commit is done, and it
incorrectly prunes the ACD data. The result is that the IPv4 address
is never added again.
Fix this by doing the pruning only when we update the dirty flags.
This is a respin of commit ed565f9146 ('l3cfg: fix pruning of ACD
data') that was reverted because it was causing a crash. The crash was
caused by unconditionally clearing `acd_data_pruning_needed` in
_l3cfg_update_combined_config(), while we need to do it only when
actually committing the configuration.
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1749
(cherry picked from commit 5b16c128bb)
The commit causes the following assertion failure:
0 0x00007f4187e22884 in __pthread_kill_implementation () from target:/lib64/libc.so.6
1 0x00007f4187dd1afe in raise () from target:/lib64/libc.so.6
2 0x00007f4187dba87f in abort () from target:/lib64/libc.so.6
3 0x00007f4188386f4e in g_assertion_message (domain=domain@entry=0x6fc1bc "nm", file=file@entry=0x722e94 "../src/core/nm-l3cfg.c", line=line@entry=2134,
func=func@entry=0x727730 <__func__.49> "_l3_acd_data_add_all", message=message@entry=0x23b3bb0 "assertion failed: (acd_data->info.track_infos[i]._priv.acd_dirty_track)")
at ../glib/gtestutils.c:3450
4 0x00007f41883f1597 in g_assertion_message_expr (domain=domain@entry=0x6fc1bc "nm", file=file@entry=0x722e94 "../src/core/nm-l3cfg.c", line=line@entry=2134,
func=func@entry=0x727730 <__func__.49> "_l3_acd_data_add_all", expr=expr@entry=0x726450 "acd_data->info.track_infos[i]._priv.acd_dirty_track") at ../glib/gtestutils.c:3476
5 0x0000000000587209 in _l3_acd_data_add_all (self=self@entry=0x23a7020, infos=infos@entry=0x0, infos_len=infos_len@entry=0, reapply=reapply@entry=1)
at ../src/core/nm-l3cfg.c:2134
6 0x0000000000587702 in _l3cfg_update_combined_config (self=self@entry=0x23a7020, to_commit=to_commit@entry=1, reapply=reapply@entry=1, out_old=out_old@entry=0x7ffd09ea4ca8,
out_changed_combined_l3cd=out_changed_combined_l3cd@entry=0x7ffd09ea4c7c) at ../src/core/nm-l3cfg.c:3858
7 0x000000000058a202 in _l3_commit (self=0x23a7020, commit_type=commit_type@entry=NM_L3_CFG_COMMIT_TYPE_REAPPLY, is_idle=is_idle@entry=0) at ../src/core/nm-l3cfg.c:5046
8 0x000000000058a49f in nm_l3cfg_commit (self=<optimized out>, commit_type=commit_type@entry=NM_L3_CFG_COMMIT_TYPE_REAPPLY) at ../src/core/nm-l3cfg.c:5115
9 0x00000000004856cd in nm_device_l3cfg_commit (self=self@entry=0x23ab870, commit_type=commit_type@entry=NM_L3_CFG_COMMIT_TYPE_REAPPLY, commit_sync=commit_sync@entry=1)
at ../src/core/devices/nm-device.c:4155
10 0x00000000004b1814 in nm_device_cleanup (self=self@entry=0x23ab870, reason=reason@entry=NM_DEVICE_STATE_REASON_NEW_ACTIVATION,
cleanup_type=cleanup_type@entry=CLEANUP_TYPE_DECONFIGURE) at ../src/core/devices/nm-device.c:15884
11 0x00000000004b26c9 in _set_state_full (self=self@entry=0x23ab870, state=state@entry=NM_DEVICE_STATE_DISCONNECTED, reason=NM_DEVICE_STATE_REASON_NEW_ACTIVATION,
quitting=quitting@entry=0) at ../src/core/devices/nm-device.c:16291
12 0x00000000004b2fe4 in nm_device_state_changed (self=self@entry=0x23ab870, state=state@entry=NM_DEVICE_STATE_DISCONNECTED, reason=<optimized out>)
at ../src/core/devices/nm-device.c:16505
13 0x00000000004b69de in queued_state_set (user_data=user_data@entry=0x23ab870) at ../src/core/devices/nm-device.c:16532
14 0x00007f41883bf4fd in g_idle_dispatch (source=0x23a88e0, callback=0x4b6956 <queued_state_set>, user_data=0x23ab870) at ../glib/gmain.c:6163
15 0x00007f41883c34fc in g_main_dispatch (context=0x22c4d10) at ../glib/gmain.c:3460
16 g_main_context_dispatch (context=0x22c4d10) at ../glib/gmain.c:4200
17 0x00007f41884216b8 in g_main_context_iterate.isra.0 (context=0x22c4d10, block=1, dispatch=1, self=<optimized out>) at ../glib/gmain.c:4276
18 0x00007f41883c2aff in g_main_loop_run (loop=0x22c3b50) at ../glib/gmain.c:4479
19 0x0000000000423a37 in main (argc=<optimized out>, argv=<optimized out>) at ../src/core/main.c:519
This reverts commit ed565f9146.
(cherry picked from commit 6a63d79fe6)
It seems more useful to have a best effort approach and configure
everything we can; in that way we achieve at least some connectivity,
and then sysadmin can check the logs in case something is
missing. Currently instead, the whole activation fails (so, no address
is configured) if just one of the addresses fails DAD.
Ideally, we should have a way to make this configurable; but for now,
implement the more useful behavior as default.
(cherry picked from commit a45024714f)
IPv4 and IPv6 DAD work slightly differently: for IPv4 the presence or
absence of carrier doesn't have any effect on the duration of the
probe; for IPv6, DAD never completes without carrier because kernel
never removes the tentative flag.
In both cases, we shouldn't ignore the DAD result because that would
mean that we complete the ipmanual method without addresses actually
configured.
(cherry picked from commit 1f73034719)
We don't know the reason why the DHCP client is being stopped. It is
wrong to schedule a commit of type "update" because the device could
be now unmanaged. Schedule instead a commit of type "auto", which
automatically determines the type of commit based on registered
handles.
(cherry picked from commit a49913504d)
If a commit is invoked without any change to the l3cd or to the ACD
data, in _l3cfg_update_combined_config() we skip calling
_l3_acd_data_add_all(), which should clear the dirty flag from ACDs.
Therefore, in case of such no-op commits the ACDs still marked as
dirty - but valid - are removed via:
_l3_commit()
_l3_acd_data_process_changes()
_l3_acd_data_prune()
_l3_acd_data_prune_one()
Invoking a l3cfg commit without any actual changes is allowed, see the
explanation in commit e773559d9d ('device: schedule an idle commit
when setting device's sys-iface-state').
The bug is visible by running test 'bond_addreses_restart_persistence'
with IPv4 ACD/DAD is enabled by default: after restart IPv6 completes
immediately, the devices becomes ACTIVATED, the sys-iface-state
transitions from ASSUME to MANAGED, a commit is done, and it
incorrectly prunes the ACD data. The result is that the IPv4 address
is never added again.
Fix this by doing the pruning only when we update the dirty flags.
(cherry picked from commit ed565f9146)
Interfaces with IFF_NOARP don't support Address Conflict Detection,
which is based on ARP. Trying to start ACD on them would result in
ENOBUFS always being returned by send(), and n-acd handles such error
by retrying indefinitely.
Fixes: 58287cbcc0 ('core: rework IP configuration in NetworkManager using layer 3 configuration')
(cherry picked from commit 7548ff57d3)
On interfaces not supporting ACD (for example, layer3 interfaces), the
probe fails to be created with message:
l3cfg[...,ifindex=2]: acd[172.25.17.1, init]: probe-good (interface does not support acd, initial post-commit)
l3cfg[...,ifindex=2]: acd[172.25.17.1, ready]: set state to ready (probe is ready, waiting for address to be configured)
During the post-commit event, if the address is not yet configured, we
need to schedule a new commit to actually add it.
Fixes: 58287cbcc0 ('core: rework IP configuration in NetworkManager using layer 3 configuration')
(cherry picked from commit 687051368f)
Currently, IPv4 shared mode fails to start when DAD is enabled because
dnsmasq tries to bind to an address that is not yet configured on the
interface. Delay the start of dnsmasq until the shared4 l3cd is ready.
Fixes: 58287cbcc0 ('core: rework IP configuration in NetworkManager using layer 3 configuration')
(cherry picked from commit e97ebb2441)
If the device is being disconnected for a user request, at the moment
the active connection goes to state DEACTIVATED through the following
transitions, independently of the reason for the disconnection:
- state: DEACTIVATING, reason: UNKNOWN
- state: DEACTIVATED, reason: DEVICE_DISCONNECTED
For VPNs, a disconnection is always user-initiated, and the active
connection states emitted are:
- state: DEACTIVATING, reason: USER_DISCONNECTED
- state: DEACTIVATED, reason: USER_DISCONNECTED
This difference poses problems for clients that want to handle device
and VPNs in the same way, especially because WireGuard is implemented
as a device, but is logically a VPN.
Let NMActRequest translate the USER_REQUESTED device state reason to
USER_DISCONNECTED active connection state reason, in case of
disconnection.
This is an API change, but the previous behavior of reporting generic
uninformative reasons seems a bug. See for example
nmc_activation_get_effective_state(), which inspects the AC state
reason and in case it's generic (DEVICE_DISCONNECTED), it considers
the device state instead.
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/issues/1405
(cherry picked from commit d3db0883c7)
NMActiveConnection implements method device_state_changed() that
re-emits device state changes as convenience for subclasses. Add the
reason for the state change to the handler, as it will be used in the
next commit.
(cherry picked from commit 634dd2f5e8)
Instruct the `NMDnsManager` to emit `CONFIG_CHANGED` signal even
`dns=none` or failed to modify `/etc/resolv.conf`.
The `NMPolicy` will only update hostname when DNS is managed.
Signed-off-by: Gris Ge <fge@redhat.com>
(cherry picked from commit a847ba8075)
This commit removes the upper bound check for the PID, letting NetworkManager recognize a PID from the pidfile higher than 2^16.
The PID limit is often set higher than 2^16 (65536) on 64-bit systems, resulting in the pidfile being ignored and subsequently deleted if the currently running instance of NetworkManager has a pid higher than 2^16.
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1727
(cherry picked from commit 28f7a6638f)
l3cfg emits a log for ACD conflicts. However, l3cfg is not aware of
what are the related NMDevice or the currently active connection, and
so it can't log the proper metadata fields (NM_DEVICE and
NM_CONNECTION) to the journal.
Instead, let NMDevice log about ACD collisions; in this way, it is
possible to get the message when filtering by device and connection.
For example:
$ journalctl -e NM_CONNECTION=d1df47be-721f-472d-a1bf-51815ac7ec3d + NM_DEVICE=veth0
<info> device (veth0): IP address 172.25.42.1 cannot be configured because it is already in use in the network by host 00:99:88:77:66:55
<info> device (veth0): state change: ip-config -> failed (reason 'ip-config-unavailable', sys-iface-state: 'managed')
<warn> device (veth0): Activation: failed for connection 'veth0+'
(cherry picked from commit 9143c1b542)
When a collision is detected by the Address Conflict Detection
mechanism, store the conflicting MAC address in NML3AcdAddrInfo, so
that it is available to listeners of NML3Cfg for events of type
NM_L3_CONFIG_NOTIFY_TYPE_ACD_EVENT.
(cherry picked from commit db307e69cb)
On very particular timing, if a connection is currently activating
on a modem device and user remove the remote settings associated
an device state change:
prepare -> deactivating (reason 'connection-removed', sys-iface-state: 'managed')
pops before entering into modem_prepare_result, resulting to a crash
on assertion.
We can simply check for the modem state to failed, set the success flag
to FALSE and continue.
Closes: https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/issues/1354
Signed-off-by: Frederic Martinsons <frederic.martinsons@unabiz.com>
(cherry picked from commit 2d85b11660)
The condition in `_get_maybe_ipv6_disabled()` is improperly set which
returns the wrong value on if an device is disabled or not when
generating the assume connection. And when
`/proc/sys/net/ipv6/conf/$DEV/disable_ipv6` is not existed (not
disabling ipv6 through sysctl setting), IPv6 is disabled by default.
Fixes: be655e6ed1 ('core: read "disable_ipv6" sysctl before nm_ip6_config_create_setting()')
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1743
(cherry picked from commit ffc377ecc6)
The member is no longer used.
Fixes: 1feaf427d2 ('platform: rework handling of failed routes during nm_platform_ip_route_sync()')
(cherry picked from commit aed21d50af)
Replace "mesc" with "msec".
Fixes: 1feaf427d2 ('platform: rework handling of failed routes during nm_platform_ip_route_sync()')
(cherry picked from commit 3fb1c4dc23)
When rolling back a checkpoint, NM will crash due to dereference a NULL
pointer of `priv->removed_devices->len`.
To fix it, we just place a NULL check before that code block.
Fixes: 1f1b71ad9f ('checkpoint: preserve devices that were removed and
readded')
Reference: https://issues.redhat.com/browse/RHEL-1526
Signed-off-by: Gris Ge <fge@redhat.com>
(cherry picked from commit 3162507d6c)
The device authentication request is an async process, it can not know
the answer right away, it is not guarantee that device is still
exported on D-Bus when authentication finishes. Thus, do not return
SUCCESS and abort the authentication request when device is not alive.
https://bugzilla.redhat.com/show_bug.cgi?id=2210271
(cherry picked from commit b341161e2a)
When a device belonging to a checkpoint is removed, we clear the
device pointer from the DeviceCheckpoint and move the object from the
devices list to the removed-devices list of the checkpoint.
Later, when restoring the connection we need to set again the device
pointer in DeviceCheckpoint; otherwise, any connection on that device
can't be reactivated if changed.
Fixes: 0e2f7ac7b5 ('nm-checkpoint: drop reference to NM_DEVICE objects on removal signal')
(cherry picked from commit b80a398306)
With flag DISCONNECT_NEW_DEVICES, on rollback we delete devices that
are present in the system and are not in the checkpoint.
The problem is that we remove the device from
`NMCheckpointPriv->devices` when it is deleted and so we lose the
information that the device was in the checkpoint. We need to also
look in the `removed_devices` list.
Fixes: 0e2f7ac7b5 ('nm-checkpoint: drop reference to NM_DEVICE objects on removal signal')
(cherry picked from commit 0fcfd6e24f)
Software devices that are controllers like bond/bridge/team when
configured to not ignore carrier are being deleted when deactivating the
device. Software devices that are not controllers, shouldn't be deleted.
Otherwise, if a VLAN link is deleted because the ethernet carrier-change
then NetworkManager won't be able to reactivate the VLAN once the
ethernet gets carrier because the link is not present.
This is restoring the previous behaviour and it's know to be relied on
by users.
https://bugzilla.redhat.com/show_bug.cgi?id=2224479https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1701
Fixes: efa63aef3a ('device: delete software device when software devices lose carrier')
Move the warning about the presence of ifcfg-rh profiles from the
plugin to NMSettings. In this way, it will be easier to implement the
migration option in the next commit.
When activating a port connection it will require the controller
connection is active or a valid controller device candidate is available
for activation.
One of the conditions we consider for a controller device to be a valid
candidate for the connection is that it is not active, therefore we
should also consider as valid a device that is currently deactivating.
Otherwise, we could fail during the port activation just because the
deactivation of the controller device candidate didn't finish yet.
https://bugzilla.redhat.com/show_bug.cgi?id=2125615https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1693
The `nm_device_hw_addr_reset()` should only set MAC address on NIC
with valid(>0) interface index.
The failure was found by `ovs_mtu` test of NMCI, failed to reproduce
the original problem (`ovs_mtu` test of NMCI) with 100 times retry.
And no trace log found for original test failure, hence cannot tell why
`nm_device_hw_addr_reset()` been invoked with iface index 0.
Signed-off-by: Gris Ge <fge@redhat.com>
We delete devices when the connection goes down and NetworkManager
created the device earlier.
Software devices like bond/bridge/team default to ignoring carrier.
However, when configuring them to not ignore carrier
([device].ignore-carrier), they were not deleted when deactivating the
devices.
This adjusts commit d0c2a24b71 ('device: do not remove software devices
on initial disconnected (rh #1035814)'). Note that back then there was
no check whether the device has an activation queued, so it behaved
differently then.
When the software device enters the UNAVAILABLE state from UNMANAGED,
during cleanup we shouldn't delete the link.
Co-Authored-By: Beniamino Galvani <bgalvani@redhat.com>
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1686
When matching two connections one might be using UUID and the other one
could be using interface-name for the controller property. When
recovering from a fresh start NM does not have any context and when
generating a connection we are using UUID as the controller.
It is always hard to guess what is the right candidate to pick but at
least something NM can do is checking if the UUID matches a connection
with the same controller interface-name. If there are no other
conflicts, then we can assume that is a good canditate to activate.
This is a follow up to `dc254f90e2b306700a0b81f7194e9b0438c62f4c`.
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1684
The default behavior is not to rename profiles. I guess, that makes
sense, as renaming a file when changing the "connection.id" could break
users who rely on the name.
My use case is the following. When I connect a Wi-Fi hotspot I use
`nmcli device wifi connect $SSID`, which -- as expected -- persists the
profile to "/etc/NetworkManager/system-connections/$SSID.nmconnection".
Later, I always update the profile's name to "w_$SSID" so I can see on
the name that this is wireless profile. I also want the filename to
reflect that change of name.
Add a configuration option for that. All the infrastructure
("force_rename" parameter) already exists.
There was already a force_rename argument to nms_keyfile_writer_connection(), which
-- if TRUE -- means to always rename the file, if it exists.
What we also want, is to follow the change of a connection.id. So we don't want
to force a rename, if we already use the preferred name, but we also want to rename
otherwise.
Extend the boolean "force_rename" argument to a NMTernary, where NM_TERNARY_DEFAULT
now means to follow the preferred name.
"force_rename" parameter was not used previously, but it also was broken.
Fix it. We need to create a new NMSettingsStorage instance when the filename
changes, as the storage's filename is immutable.
No bad effects so far, it was unused.
But as it wasn't used, also no longer set the update_reason flag
NM_SETTINGS_CONNECTION_UPDATE_REASON_FORCE_RENAME. We didn't have the
force-rename behavior so far. This makes the flag totally unused, and
maybe should be dropped. It's kept for now, if only to show what could
be done.
We have some interal code that is only used to expose functionality for
the tests. Those functions should be easily distinguishable from code
that is used by the "real" code. Give a "nmtst" prefix. Rename
nms_keyfile_writer_test_connection() to nmtst_keyfile_writer_test_connection().
When user are changing SR-IOV VF settings for options like `max-tx-rate`
which some hardware not supported yet, the failure of this VF will fail
the whole activation, then the SR-IOV will be disabled means all the VFs
will be deleted.
Deleting VFs might break network connectivity and this collateral
damage of VF option failure is not acceptable for OpenShift use cases
even they have checkpoint protection.
This patch only log warn message on failure of VF options and will not
fail the activation.
NetworkManager also ignore MTU failure during activation, I believe this
fit into the same assumption.
User case reference: https://bugzilla.redhat.com/show_bug.cgi?id=2210164
Signed-off-by: Gris Ge <fge@redhat.com>
Fail to save a connection with a 'link' setting instead of just
ignoring it. Now:
$ nmcli connection add type ethernet ifname foobar
Connection 'ethernet-foobar' (c3f6f067-e1d5-4bb1-8d67-e09109253a79) successfully added.
$ nmcli connection modify ethernet-foobar link.tx-queue-length 1234
Error: Failed to modify connection 'ethernet-foobar': failed to update connection: The ifcfg-rh plugin doesn't support setting 'link'. If you are modifying an existing connection profile saved in ifcfg-rh format, please migrate the connection to keyfile using 'nmcli connection migrate c3f6f067-e1d5-4bb1-8d67-e09109253a79' or via the Update2() D-Bus API and try again.
$ nmcli connection migrate c3f6f067-e1d5-4bb1-8d67-e09109253a79
Connection 'ethernet-foobar' (c3f6f067-e1d5-4bb1-8d67-e09109253a79) successfully migrated.
$ nmcli connection modify ethernet-foobar link.tx-queue-length 1234
$
Fixes: 39bfcf7aab ('all: add "link" setting')
The ifcfg-rh plugin is now deprecated and in bugfixes-only mode. When
users try to set a property that is not supported by the plugin, we
need to report an error.
Add an helper function to set such error. Also, introduce a new error
code so that the situation can be detected and dealt with
programmatically.
