| Commit message (Collapse) | Author | Age | Files | Lines |
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the parent of a device
This commit is part of a broader change that eliminates inheriting
the unmanaged condition from the parent of a device, for all device
types:
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1418
What motivates this change are the unncessary issues brought by this
inheritance. You can see some problems described here:
https://bugzilla.redhat.com/show_bug.cgi?id=2110307#c0.
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This commit is part of a broader change that eliminates inheriting
the unmanaged condition from the parent of a device, for all device
types:
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1418
What motivates this change are the unncessary issues brought by this
inheritance. You can see some problems described here:
https://bugzilla.redhat.com/show_bug.cgi?id=2110307#c0.
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This commit is part of a broader change that eliminates inheriting
the unmanaged condition from the parent of a device, for all device
types:
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1418
What motivates this change are the unncessary issues brought by this
inheritance. You can see some problems described here:
https://bugzilla.redhat.com/show_bug.cgi?id=2110307#c0.
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This commit is part of a broader change that eliminates inheriting
the unmanaged condition from the parent of a device, for all device
types:
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1418
What motivates this change are the unncessary issues brought by this
inheritance. You can see some problems described here:
https://bugzilla.redhat.com/show_bug.cgi?id=2110307#c0.
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It is not possible to configure a VLAN interface on unmanaged NIC.
This forces users who only want to create a VLAN interface to take
ownership over possibly shared underlying NIC.
In OpenShift, the SR-IOV operator is currently not using
NetworkManager to configure VFs. When it starts working with a NIC,
it explicitly makes it unmanaged. Then, users cannot create a VLAN
interface on PFs managed by the operator.
This commit eliminates this issue by allowing configuring VLAN on
an interface without requesting it to be managed by NetworkManager.
This commit is part of a broader change that eliminates inheriting
the unmanaged condition from the parent of a device, for all device
types:
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1418
https://bugzilla.redhat.com/show_bug.cgi?id=2110307
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Log the port config at trace level. Helps making debugging less
miserable.
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1423
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ensure_teamd_connection() is called from multiple spots. Sometimes
we call opportunistically without having started teamd (e.g. when on
update_connection() when generating a connection for teaming device that
was created) and handle the failure to connect gracefully.
Let's not pollute the logs with things on ERROR level that are not
actually serious. Replace the logging statements with DEBUG or WARN
depending on whether we expect ensure_teamd_connection() to actually
succeed.
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1422
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Call teamdctl_port_config_update_raw() when we're attaching a port even
if all of team-slave setting properties are default.
This is done to ensure teamd "knows" about the port (that is,
"teamdctl ... port present" returns success) when we're done activating
the slave connection. It will pick it up anyway from netlink, but that
can happen after the activation is done, resulting in a possible race.
Fixes-test: @remove_active_team_profile
https://bugzilla.redhat.com/show_bug.cgi?id=2102375
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1421
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https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1425
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https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1414
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Add a fire-and-forget function to wait for shutdown to be complete.
It's not entirely trivial to ensure all resources of NMClient are
cleaned up. That matters only if NMClient uses a temporary GMainContext
that the user wants to release while the application continues. For
example, to do some short-lived operations an a worker thread. It's
not trivial also because glib provides no convenient API to integrate
a GMainContext in another GMainContext. We have that code as
nm_utils_g_main_context_create_integrate_source(), so add a helper
function to allow the user to do this.
The function allows to omit the callback, in which case the caller
wouldn't know when shutdown is complete. That would still be useful
however, when integrating the client's context into the caller's
context, so that the client's context gets automatically iterated
until completion.
The following test script will run out of file descriptors,
when wait_shutdown() is not used:
#!/bin/python
import gi
gi.require_version("NM", "1.0")
from gi.repository import NM, GLib
for i in range(1200):
print(f">>>{i}")
ctx = GLib.MainContext()
ctx.push_thread_default()
nmc = NM.Client.new()
ctx.pop_thread_default()
def cb(unused, result, i):
try:
NM.Client.wait_shutdown_finish(result)
except Exception:
# cannot happen
assert False
else:
print(f">>>>> {i} complete")
nmc.wait_shutdown(True, None, cb, i)
while GLib.MainContext.default().iteration(False):
pass
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When using async initialization with GAsyncInitable, the user usually can
only know that initialization is complete by passing a callback.
In simple cases, that can be cumbersome.
Also expose a flag that allows to poll that information.
Reuse the existing NM_CLIENT_INSTANCE_FLAGS for that. There is an
ugliness here, that suddenly there are instance flags that cannot be
set, but are still returned by the getter. But as this is a relatively
obscure feature, it seems more lightweight to implement it this way
(instead of adding a separate property and getter function).
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https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1427
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In nm_dns_manager_set_ip_config() we try to avoid calling update_dns()
unless something changes, because updating DNS is expensive and can
trigger other actions such as a new hostname resolution.
When we add a new ip_data, even if the new element is equivalent to
the old one that was removed, we need to sort the list again.
Fixes: ce0a36d20fa6 ('dns: better track l3cd changes')
https://bugzilla.redhat.com/show_bug.cgi?id=2098574
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https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/issues/1115
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1424
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Clang 15 ([1], [2]) added
Added the -Wunreachable-code-generic-assoc diagnostic flag (grouped
under the -Wunreachable-code flag) which is enabled by default and warns
the user about _Generic selection associations which are unreachable
because the type specified is an array type or a qualified type.
This causes compiler warnings with various uses of _Generic():
../src/libnm-glib-aux/nm-shared-utils.h:2489:12: error: due to lvalue conversion of the controlling expression, association of type 'const char *const *const' will never be selected becaus
e it is qualified [-Werror,-Wunreachable-code-generic-assoc]
return nm_strv_find_first((const char *const *) strv->pdata, strv->len, str);
^
../src/libnm-glib-aux/nm-shared-utils.h:475:25: note: expanded from macro 'nm_strv_find_first'
_nm_strv_find_first(NM_CAST_STRV_CC(list), (len), (needle))
^
../src/libnm-glib-aux/nm-macros-internal.h:397:22: note: expanded from macro 'NM_CAST_STRV_CC'
const char *const*const: (const char *const*) (value), \
^
Clang is correct.
[1] https://releases.llvm.org/15.0.0/tools/clang/docs/ReleaseNotes.html#improvements-to-clang-s-diagnostics
[2] https://reviews.llvm.org/D125259
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Clang 15 now (correctly) warns about this:
../src/libnm-core-impl/nm-vpn-plugin-info.c:201:40: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
_nm_vpn_plugin_info_get_default_dir_etc()
^
void
../src/libnm-core-impl/nm-vpn-plugin-info.c:213:40: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
_nm_vpn_plugin_info_get_default_dir_lib()
^
void
../src/libnm-core-impl/nm-vpn-plugin-info.c:226:41: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
_nm_vpn_plugin_info_get_default_dir_user()
^
void
../src/libnm-core-impl/nm-vpn-plugin-info.c:315:29: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
nm_vpn_plugin_info_list_load()
^
void
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Notably, PAGER, TERM and NO_COLORS.
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1419
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Prefer it over strncmp(), because it seems easier to understand (to me).
Prefer it over g_str_has_prefix(), because it can directly expand
to a plain strncmp() -- instead of first humping to glib, then calling
strlen() before calling strncmp().
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I think the devtype should be checked first, before the interface name.
Checking by name seems really very hacky, move that last.
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Turns out, modern rmnet_* devices doesn't use ARPHRD_ETHER arptype, but
ARPHRD_RAWIP. Also complicating the fact is that ARPHRD_RAWIP is
actually added in v4.14, but devices using kernel before that version
define this value as "530" in an out-of-tree patch [1].
Recognize this case and check explicitly for 3 values of arptype.
[1] https://github.com/LineageOS/android_kernel_google_msm-4.9/commit/54948008c293fdf48552a5c39c91c09c3eb76ed2
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1392
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https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/issues/1112
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https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1417
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When you call
nm_uuid_generate_from_strings_strv(uuid_type, type_arg, v1, v2);
you'd probably expect that both values are honored in some way.
However, if v1 happened to be NULL, then previously v2 would be ignored.
Extend nm_uuid_generate_from_strings() to accept also NULL values and
pass on the length. Currently, there are no users of nm_uuid_generate_from_strings(),
so nobody is affected by this change.
Also extend nm_uuid_generate_from_strings_strv() to take a length
argument. It still accepts "-1" to take the input strv as a NULL
terminated array.
If a positive length is provided to nm_uuid_generate_from_strings_strv(),
it hashes the same UUID as the respective NULL terminated array. But of
course only, if there is no NULL inside the array. If there are any
NULLs, a distinct UUID gets generated.
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For a long time we have a function like nm_uuid_generate_from_strings().
This was recently reworked and renamed, but it preserved behavior. Preserving
behavior is important for this function, because for the existing users,
we need to keep generating the same UUIDs.
Originally, this function was a variadic function with NULL sentinel.
That means, when you write
nm_uuid_generate_from_strings(uuid_type, type_arg, v1, v2, v3, NULL);
and v2 happens to be NULL, then v3 is ignored. That is most likely not
what the user intended. Maybe they had a bug and v2 should not be NULL.
But nm_uuid_generate_from_strings() should not require that all
arguments are non-NULL and it should not ignore arguments after the
first NULL.
For example, one user works around this via
uuid = nm_uuid_generate_from_strings_old("ibft",
s_hwaddr,
s_vlanid ? "V" : "v",
s_vlanid ? s_vlanid : "",
s_ipaddr ? "A" : "DHCP",
s_ipaddr ? s_ipaddr : "");
which is cumbersome and ugly.
That will be fixed next, by adding a function that doesn't suffer
from this problem. But "this problem" is part of the API of the
function, we cannot just change it. Instead, rename it and all
users, so they can keep doing the same.
New users of course should no longer use the "old" function.
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https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1369
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The file "nm-meta-setting-base-impl.c" is shared by "libnm-core-impl" and
"libnmc-setting". For "libnm-core-impl" it uses a efficient lookup from the
gtype. For "libnmc-setting", that class information is not available, so
it did a linear search. Instead, do a binary search.
Tested:
diff --git a/src/libnm-core-impl/nm-meta-setting-base-impl.c b/src/libnm-core-impl/nm-meta-setting-base-impl.c
index 3434c858391f..62c366d2ca42 100644
--- a/src/libnm-core-impl/nm-meta-setting-base-impl.c
+++ b/src/libnm-core-impl/nm-meta-setting-base-impl.c
@@ -821,6 +821,11 @@ nm_meta_setting_infos_by_gtype(GType gtype)
{
const NMMetaSettingInfo *setting_info;
+#if _NM_META_SETTING_BASE_IMPL_LIBNM
+ return _infos_by_gtype_binary_search(gtype);
+#endif
+ nm_assert_not_reached();
+
#if _NM_META_SETTING_BASE_IMPL_LIBNM
setting_info = _infos_by_gtype_from_class(gtype);
#else
diff --git a/src/libnm-core-impl/tests/test-setting.c b/src/libnm-core-impl/tests/test-setting.c
index 85d549eb766c..65fcafd076c9 100644
--- a/src/libnm-core-impl/tests/test-setting.c
+++ b/src/libnm-core-impl/tests/test-setting.c
@@ -5134,6 +5134,29 @@ main(int argc, char **argv)
{
nmtst_init(&argc, &argv, TRUE);
+ {
+ gs_unref_object NMConnection *con = NULL;
+ guint8 ctr = 0;
+ guint i;
+
+ con = nmtst_create_minimal_connection("test", NULL, NM_SETTING_WIRED_SETTING_NAME, NULL);
+
+ nm_connection_add_setting(con, nm_setting_wired_new());
+
+ nmtst_connection_normalize(con);
+ nmtst_assert_connection_verifies_without_normalization(con);
+
+ for (i = 0; i < 10000000; i++) {
+ ctr += GPOINTER_TO_UINT(nm_connection_get_setting(con, NM_TYPE_SETTING_WIRED));
+ ctr += GPOINTER_TO_UINT(nm_connection_get_setting(con, NM_TYPE_SETTING_CONNECTION));
+ ctr += GPOINTER_TO_UINT(nm_connection_get_setting(con, NM_TYPE_SETTING_PROXY));
+ ctr += GPOINTER_TO_UINT(nm_connection_get_setting(con, NM_TYPE_SETTING_WIREGUARD));
+ ctr += GPOINTER_TO_UINT(nm_connection_get_setting(con, NM_TYPE_SETTING_IP4_CONFIG));
+ }
+
+ return !!ctr;
+ }
+
g_test_add_func("/libnm/test_connection_uuid", test_connection_uuid);
g_test_add_func("/libnm/settings/test_nm_meta_setting_types_by_priority",
Results of `make src/libnm-core-impl/tests/test-setting && libtool --mode=execute perf stat -r 5 -B src/libnm-core-impl/tests/test-setting`:
1) previous linear search: 3,182.81 msec
2) bsearch not inlined: 1,611.19 msec
3) bsearch open-coded: 1,214.45 msec
4) bsearch inlined: 1,167.70 msec
5) lookup from class: 1,147.64 msec
1) previous implementation
2) using nm_array_find_bsearch()
3) manually implementing binary search
4) using nm_array_find_bsearch_inline()
5) only available to libnm-core as it uses internal meta data
Note that for "libnm-core-impl" the implementation was already fast (5), and
it didn't change. It only changed to binary search for "libnmc-setting",
which arguably is a less strong use-case.
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The file "nm-meta-setting-base-impl.c" is present twice in our source
tree and compiled twice. Once with internal headers of libnm-core and
once with only public headers.
Consequently, there are two implementations for
nm_meta_setting_infos_by_gtype(), one that can benefit from internal
access to the data structure, and the one for libnmc, which cannot.
Refactor the implementations, in the hope to have it clearer.
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To implement binary search is not very hard. It's almost easy enough to
just open-code it, without using the existing nm_array_find_bsearch() function.
In particular, because nm_array_find_bsearch() won't be inlined,
and thus it is slower than implementing it by hand.
Add nm_array_find_bsearch_inline() as a variant that will be inlined.
This actually is as fast as reimplementing it by hand (I measured),
which takes away any reason to avoid the function.
However, our headers get huge. That may be a problem for complication
time. To counter that a bit, only define the function when the caller
requests it with a NM_WANT_NM_ARRAY_FIND_BSEARCH_INLINE define.
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We also need to build with python2. No f-strings.
Fixes: 8fc7b6df12ed ('tools: rework generating documentation from libnm meta data')
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cleanup attribute
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At startup, we remove from ovsdb any existing interface created by NM
and later an interface with the same name might be readded. This can
cause race conditions. Consider this series of events:
1. at startup NM removes the entry from ovsdb;
2. ovsdb reports success;
3. NM inserts an interface with the same name again;
4. ovs-vswitch monitors ovsdb changes, and gets events for removal and
insertion. Depending on how those events are split in different
batches, it might decide:
4a. to delete the link and add it back, or
4b. to keep the existing link because the delete and insertion
cancel out each other.
When NM sees the link staying in platform, it doesn't know if it's
because of 4b or because 4a will happen eventually.
To avoid this ambiguity, after ovsdb reports the successful deletion
NM should also wait that the link disappears from platform.
Unfortunately, this means that ovsdb gets a dependency to the platform
code.
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1386
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These checks don't seem very useful, to have them enabled
in production code.
What is actually the real danger of messing up with binary search,
is that the input array is not properly sorted. Asserting for that
would be way more useful, but also likely too expensive to be worth
it.
Checking that the input arguments are not NULL/zero, is not that useful,
because we "usually" won't make such mistakes.
While at it, declare each local variable on a separate line.
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For connections with multi-connect property set to "multiple", the
autoconnect-retries should be tracked per device and not per connection.
That means, if autoconnect-retries is set to 2, each device using that
connection should retry to autoconnect 2 times.
The device autoconnect retries is -2 by default. This is a special
value, in NMPolicy context, if the connection used is multi-connect the
device value will be set to match the connection retries. Each time the
device picks a different connection, it will reset the device
autoconnect retries to -2 and if needed, sync. with the connection
retries.
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1387
https://bugzilla.redhat.com/show_bug.cgi?id=2039734
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fully attached
This partly reverts 1fe8166fc9fb ('device: only deactivate when the master
we've enslaved to goes away').
If the controller fails while the port is not yet fully attached,
before this patch the following happened:
<info> [1664299566.1065] device (bond0): state change: ip-config -> failed (reason 'config-failed', sys-iface-state: 'managed')
...
<warn> [1664299566.1073] device (bond0): Activation: failed for connection 'bond0'
<trace> [1664299566.1073] device[6b76ac7314eb0b53] (bond0): master: release one slave a9f10ea824bb1725/eth1 (not enslaved) (configure)
<debug> [1664299566.1073] device[a9f10ea824bb1725] (eth1): unmanaged: flags set to [!sleeping,!by-type,!platform-init,!user-explicit,!user-settings,!user-conf=0x0/0x179/managed], forget [is-slave=0x800], reason removed)
...
<info> [1664299566.1080] device (eth1): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed')
Note that now eth1 has no controller, but it lingers in "ip-config" state indefinitely.
If we look at a case where the port is already attached we see:
<info> [1664299540.9661] device (bond0): state change: secondaries -> failed (reason 'config-failed', sys-iface-state: 'managed')
...
<warn> [1664299540.9667] device (bond0): Activation: failed for connection 'bond0'
<trace> [1664299540.9667] device[6b76ac7314eb0b53] (bond0): master: release one slave a9f10ea824bb1725/eth1 (enslaved) (configure)
<debug> [1664299540.9667] platform: (eth1) link: releasing 10 from master 'bond0' (80)
...
<info> [1664299540.9740] device (bond0): detached bond port eth1
...
<debug> [1664299540.9749] device[a9f10ea824bb1725] (eth1): Activation: connection 'eth1' master failed
...
<warn> [1664299540.9749] device (eth1): queue-state[secondaries, reason:none, id:520]: replace previously queued state change
...
<debug> [1664299540.9750] device[a9f10ea824bb1725] (eth1): queue-state[deactivating, reason:dependency-failed, id:533]: queue state change
<debug> [1664299540.9751] device[a9f10ea824bb1725] (eth1): unmanaged: flags set to [!sleeping,!by-type,!platform-init,!user-explicit,!user-settings,!user-conf=0x0/0x179/managed], forget [is-slave=0x800], reason removed)
...
<debug> [1664299541.0201] device[a9f10ea824bb1725] (eth1): enslaved to unknown device 0 (??)
...
<debug> [1664299541.0227] device[a9f10ea824bb1725] (eth1): queue-state[deactivating, reason:dependency-failed, id:533]: change state
<info> [1664299541.0228] device (eth1): state change: ip-check -> deactivating (reason 'dependency-failed', sys-iface-state: 'managed')
Fix that by not ignoring the nm_device_slave_notify_release() call. Now we get:
<info> [1664391684.9757] device (bond0): state change: ip-config -> failed (reason 'config-failed', sys-iface-state: 'managed')
...
<debug> [1664391684.9759] active-connection[69c2b12d61f5b171]: set state deactivated (was activating)
<debug> [1664391684.9760] active-connection[142bb8240f6a696d]: check-master-ready: already signalled (state activating, master 0x56116f1480a0 is in state deactivated)
...
<debug> [1664391684.9762] manager: ActivatingConnection now (none)
...
<warn> [1664391684.9763] device (bond0): Activation: failed for connection 'bond0'
<trace> [1664391684.9763] device[142828814dec6e26] (bond0): master: release one slave 720791275fe8a68c/eth1 (not enslaved) (configure)
<debug> [1664391684.9763] device[720791275fe8a68c] (eth1): Activation: connection 'eth1' master failed
...
<debug> [1664391684.9764] device[720791275fe8a68c] (eth1): queue-state[deactivating, reason:dependency-failed, id:3047]: queue state change
<debug> [1664391684.9765] device[720791275fe8a68c] (eth1): unmanaged: flags set to [!sleeping,!by-type,!platform-init,!user-explicit,!user-settings,!user-conf=0x0/0x179/managed], forget [is-slave=0x800], reason removed)
...
<debug> [1664391684.9797] device[720791275fe8a68c] (eth1): queue-state[deactivating, reason:dependency-failed, id:3047]: change state
<info> [1664391684.9797] device (eth1): state change: config -> deactivating (reason 'dependency-failed', sys-iface-state: 'managed')
Commit 1fe8166fc9fb ('device: only deactivate when the master we've
enslaved to goes away') added the "return", but it seems to also add it
in cases where we need to handle this. Restrict the return to cases if
we do "no-config".
https://bugzilla.redhat.com/show_bug.cgi?id=2130287
Fixes: 1fe8166fc9fb ('device: only deactivate when the master we've enslaved to goes away')
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1406
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If there is no carrier on a device, don't try to resolve the hostname
on it. Instead, subscribe to carrier change notifications and retry
again once carrier goes up.
https://bugzilla.redhat.com/show_bug.cgi?id=2118817
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1402
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NM_SETTING_IP_CONFIG_GET_ADDR_FAMILY()
The G_TYPE_INSTANCE_GET_CLASS() macro is just one pointer dereference
(self)->g_class, plus additional assertions with debug builds.
As such, it is as fast as it gets. Embed the address family there, and
implement NM_SETTING_IP_CONFIG_GET_ADDR_FAMILY() that way.
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1395
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https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1394
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NMConnection is an interface, implemented by NMSimpleConnection and
NMRemoteConnection.
For the most part, an NMConnection is only the content of the profile
(the settings). The "path" of the connection refers to the D-Bus path,
and wouldn't really make sense of the NMConnection interface or the
NMSimpleConnection type.
As such, the daemon (which only uses NMConnection and
NMSimpleConnection) never sets the path. Only libnm does.
NMClient uses NMRefString extensively for the D-Bus interface and the
path is already internalized. Take advantage of that. It is very likely,
that we are able to share the path instance in libnm at which point it
makes sense to use NMRefString.
Also, during nm_simple_connection_new_clone(), we can just take another
reference instead of cloning the string.
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We usually compare first for pointer equality. It seems to make
more sense this way. Swap.
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https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1410
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