Commit graph

32686 commits

Author SHA1 Message Date
Beniamino Galvani
ae4e048626 ndisc: honor default route parameters from RA route options
RFC 4191 section-3.1 says:

  When processing a Router Advertisement, a type C host first updates a
  ::/0 route based on the Router Lifetime and Default Router Preference
  in the Router Advertisement message header. [...] The Router Preference
  and Lifetime values in a ::/0 Route Information Option override the
  preference and lifetime values in the Router Advertisement header.

Fix the RA parsing so that the parameters from a default route option
are applied to the gateway.

https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/issues/1666
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/2072

Fixes: c3a4656a68 ('rdisc: libndp implementation')
(cherry picked from commit 6c18fda519)
(cherry picked from commit d775c3d256)
(cherry picked from commit 0f9d0cd6a3)
(cherry picked from commit 364e6e199c)
2024-12-27 12:01:30 +01:00
Beniamino Galvani
16880f90e2 core: fix deleting internal global DNS configuration
The tracking of variable "has_intern" in intern_config_read() is
wrong: we set it when adding any entry to the keyfile, but then we
remove the global DNS section without updating the variable.

The effect is that the function might return an empty keyfile instead
of NULL.

Fix this by moving the check on global DNS above.

Fixes: 55c204b9a3 ('core: add support for reading global DNS configuration from keyfile')
(cherry picked from commit 07113dde30)
(cherry picked from commit 0a1b642a2d)
(cherry picked from commit 23143c5e3e)
(cherry picked from commit f3006bf894)
2024-12-27 12:01:30 +01:00
Valentin Blot
0551d01304 wwan: remove buggy assertion
Removed an assertion that was not satisfied in the legitimate case of
IPv4 + do_auto.

Fixes: 58287cbcc0 ('core: rework IP configuration in NetworkManager using layer 3 configuration')

https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/2061
(cherry picked from commit 4082e7e109)
(cherry picked from commit 9cb6424a18)
(cherry picked from commit 60996ccb2c)
(cherry picked from commit 37c1f3f367)
2024-12-27 12:01:30 +01:00
Beniamino Galvani
904dc9c466 platform: fix to_string() functions for IPv6 tunnels
We can hit an assertion at trace log level when printing IPv6 tunnel
links, because the buffer for the local and remote addresses is not
big enough. Increase the buffer size.

Fixes: 32f6e1ef2e ('platform: add IP6TNL links support')

https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/2063
(cherry picked from commit eb620e0e7e)
(cherry picked from commit fc09f55ef5)
(cherry picked from commit 95ef14b44e)
(cherry picked from commit 0e20b52449)
2024-12-27 12:01:30 +01:00
Beniamino Galvani
d8e729e540 l3cfg: ensure the probing timeout is initialized on probe start
When handling event TIMEOUT, "acd_data->probing_timeout_msec" needs to
be always initialized before jumping to "handle_start_probing:";
otherwise, an assertion failure is triggered at:

  static void
  _l3_acd_data_timeout_schedule_probing_restart(AcdData *acd_data, gint64 now_msec)
  {
    ...
    nm_assert(acd_data->probing_timeout_msec > 0);

Even if the ACD data is already in state PROBE, that doesn't mean that
the timeout is already initialized because the PROBE state can also be
reached from a INSTANCE_RESET event; and depending on the previous
state "acd_data->probing_timeout_msec" could be uninitialized.

Fixes-test: @iptunnel_restart
Fixes: b8f9d7b5dd ('l3cfg: rework ACD handling in NML3Cfg to support handling conflicts')

https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/2023
(cherry picked from commit a09f9cc616)
(cherry picked from commit 4dde5aa787)
(cherry picked from commit 67b2a5f624)
(cherry picked from commit ac689ddd86)
2024-12-27 12:00:48 +01:00
Jan Vaclav
0296e8aafa nmtui: correctly check that connection list is non-empty
Previously, the "edit" or "delete" buttons were clickable even
if there were no available connections, which was not expected
and caused an assertion to fail when clicked. This is because
the connections list could contain connections that were later
filtered out and not displayed in the final list, but the check
did not take this into account.

Make it so that the buttons are clickable only if we *actually*
have any available connections to edit or delete.

Fixes: 3bda3fb60c ('nmtui: initial import of nmtui')
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1991
(cherry picked from commit c9fefcd095)
(cherry picked from commit f6e4d1b2e0)
(cherry picked from commit de444a4562)
(cherry picked from commit 8d8eaca0d0)
2024-12-27 12:00:48 +01:00
Martin von Gagern
64e5220398 core: fix dhcp leases in l3cd cloning.
This will copy DHCP lease from src (not self), fixing an assertion in
nm_l3_config_data_new_clone.

Resolves: https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/issues/1620
Fixes: 55b722820d ('l3cfg: fix nm_l3_config_data_new_clone() to make exact copy')
(cherry picked from commit a25d593922)
(cherry picked from commit 61e781c4f5)
(cherry picked from commit fdc909741d)
(cherry picked from commit a009cabcb4)
2024-12-27 12:00:48 +01:00
Beniamino Galvani
5ab446043c ovs: fix assertion failure in netdev datapath mode
When using the netdev datapath, we wait for the link to appear in
different steps:

 1. initially, in act_stage3_ip_config() connects to platform's
   "link-changed" signal to detect when the TUN interface appears;

 2. when the interface appears, _netdev_tun_link_cb() schedules
   _set_ip_ifindex_tun() in a idle handler;

 3. _set_ip_ifindex_tun() checks if the link is ready (e.g. if the MAC
   address is correct) and in that case it reschedules stage3, which
   will move forward with the activation;

 4. if the link is not ready in _set_ip_ifindex_tun(), the function
   connects again to platform's "link-changed" signal to react to link
   changes;

 5. after the link changes and it is ready, _netdev_tun_link_cb()
   reschedules stage3, which moves forward with the activation;

With the current implementation it is possible that after step 2, if
act_stage3_ip_config() runs because it was already scheduled, it
registers again to the "link-changed" event; then when
_set_ip_ifindex_tun() is invoked it will hit assertion:

  nm_assert(!priv->wait_link.tun_link_signal_id);

Fix this by preventing that the signal gets registered again after
step 2.

Fixes-test: @ovs_datapath_type_netdev_with_cloned_mac

Fixes: acf485196c ('ovs-interface: wait that the cloned MAC changes instead of setting it')

https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/2024
(cherry picked from commit b6e69f3467)
(cherry picked from commit 50da988182)
(cherry picked from commit d82d8a027c)
(cherry picked from commit 317b9a3a9c)
2024-12-27 12:00:48 +01:00
Jan Vaclav
6d0fe8cffa nmcli/edit: fix memory leak in extract_setting_and_property
In case the user selects a setting/property with "goto" command, and
then attempts to tab-complete a setting/property pair, the original sett
and prop strings are overriden without freeing:

  nmcli > goto 802-1x.pac-file
  nmcli 802-1x.pac-file> set 802-1.lal<TAB>

Fixes: 79bc271685 ('cli: TAB-completion for enum-style property values (rh #1034126)')
(cherry picked from commit ca47fd882e)
(cherry picked from commit 796844dc09)
(cherry picked from commit d13f0c04ed)
2024-12-27 12:00:48 +01:00
Isidro Arias
8ef11d8179 examples: fix print parenthesis place in get_ips.py
Fixes: 797d9c4403 ('python: make dbus, gi examples, and debug-helper.py python3 ready')
(cherry picked from commit 75350b3e76)
(cherry picked from commit 87ec6ae44e)
(cherry picked from commit 005b042b41)
2024-12-27 12:00:48 +01:00
Lubomir Rintel
494ea71f6c po/ru: back out unintended changes to the metadata
Seems like and older or broken template has snuck in at some point,
replacing "NetworkManager" with "PACKAGE" and removing copyright notices
of other translations. Bring that back.

Fixes: 3444af517f ('po: update Russian (ru) translation')

https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1996
(cherry picked from commit 2cd40063c2)
(cherry picked from commit 5a1f1f669f)
(cherry picked from commit 5d25d69ec7)
2024-12-27 11:59:11 +01:00
Beniamino Galvani
8c3b325ef0 ndisc: preserve router preferences
If we add multiple default routes with the same metric and different
preferences, kernel merges them into a single ECMP route, with overall
preference equal to the preference of the first route
added. Therefore, the preference of individual routes is not
respected.

To avoid that, add routes with different metrics if they have
different preferences, so that they are not merged together.

We could configure only the route(s) with highest preference ignoring
the others, and the effect would be the same. However, it is better to
add all routes so that users can easily see from "ip route" that there
are multiple routers available.

https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/issues/1468
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1983

Fixes: 032b4e4371 ('core: use router preference for IPv6 routes')
(cherry picked from commit c437625a76)
(cherry picked from commit 8445076d55)
(cherry picked from commit 06032aa758)
2024-12-27 11:58:56 +01:00
Beniamino Galvani
e789057503 policy: assert that the auto-activate list is empty on dispose
We are currently asserting that the list of devices waiting for
auto-activation in NMPolicy is not empty. This condition is always
false because:

 - NMDevice holds a reference to NMManager
 - NMManager holds a reference to NMPolicy
 - on dispose, NMDevice asserts that it's not in NMPolicy's
   auto-activate list

Therefore if there is any NMDevice alive, NMPolicy must be alive as
well. Instead, if there is no NMDevice alive the list must be empty.

The assertion could fail only when the NMPolicy instance gets
disposed, which usually doesn't happen because it's still referenced
at shutdown.

Fixes: aede228974 ('core: assert that devices are not registered when disposing NMPolicy')
(cherry picked from commit 27b646cfa1)
(cherry picked from commit 1b51404703)
(cherry picked from commit e4d7cb7453)
2024-12-27 11:58:56 +01:00
Jan Vaclav
6dd4d875b6 agent: print error message character in hex form if it's unprintable
Currently, when the agent manager is sent a registration request
containing UTF-8 characters, it will form an invalid error message
using only one of the bytes from the UTF-8 sequence, which causes
an assertion in glib to fail, which replaces the returned error message
with "[Invalid UTF-8]". It will also print an assertion failure to the
console, or crash NetworkManager on non-release builds.

This commit makes it so that it instead prints out the character in
hexadecimal form if it isn't normally printable, so that it is once
again a valid UTF-8 string.

https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1965

Fixes: a30cf19858 ('agent: add agent manager and minimal agent class')
(cherry picked from commit c9327b2e8b)
(cherry picked from commit f6f466ccf8)
(cherry picked from commit 19a8feaad6)
2024-12-27 11:58:56 +01:00
Jan Vaclav
4f842cdd13 nmtui: handle write() errors correctly in nmt_newt_edit_string
It might happen that write() returns -1, but the errno is not EINTR.
In that case, the length would be incremented by 1, and the data pointer
to the data being written would be moved back by 1 byte on every error.

Make it so that the function exits with an error if it indicates an error.

https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1971

Fixes: 3bda3fb60c ('nmtui: initial import of nmtui')
(cherry picked from commit 13317bd536)
(cherry picked from commit f1888900bd)
(cherry picked from commit 277863ef8f)
2024-12-27 11:58:56 +01:00
Beniamino Galvani
4685ceaa67 wifi: fix list corruption when scanning with explicit SSID
Calling c_list_link_tail() on a list entry that already belongs to
another list corrupts the other list, in this case 'old_lst_head';
this is explained in the documentation of c_list_link_before():

 * @what is not inspected prior to being linked. Hence, it better not
 * be linked into another list, or the other list will be corrupted.

This can be reproduced by invoking "nmcli device wifi rescan ssid x"
multiple times; in this way, _scan_request_ssids_track() reuses the
previous SSID data, the list gets corrupted and this causes a crash.

Fixes: 7500e90b53 ('wifi: rework scanning of Wi-Fi device')

https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/2076
(cherry picked from commit 3b75577871)
(cherry picked from commit 3917235a2d)
(cherry picked from commit 409acc6185)
(cherry picked from commit 1006b39ef1)
2024-12-27 11:56:16 +01:00
Beniamino Galvani
810de21d03 ovs: allow specifying a system OVS interface by MAC address
The OVS interface can be matched via MAC address; in that case, the
"connection.interface-name" property of the connection is empty.

When populating the ovsdb, we need to pass the actual interface name
from the device, not the one from the connection.

Fixes: 830a5a14cb ('device: add support for OpenVSwitch devices')

https://issues.redhat.com/browse/RHEL-34617
(cherry picked from commit be28a11735)
(cherry picked from commit 129f9e5be6)
(cherry picked from commit ecb26f5ad9)
2024-12-27 11:56:12 +01:00
Thomas Haller
4944eb6dd0 config: fix crash in assertion during NetworkManager --print-config
Fixes: f6345180b1 ('core/config: fix duplicate entires in `NetworkManager --print-config` output')
(cherry picked from commit 5472f28a40)
(cherry picked from commit 41a5cb5308)
(cherry picked from commit 697ee0388b)
2024-12-27 11:52:12 +01:00
Jan Vaclav
2737cd7be8 libnm/wired: fix mac comparison in _remove_mac_blacklist_item_by_value
The comparison checking for MAC address equality had previously been flipped around.

Fixes: b084ad7f2b ('libnm-core: canonicalize hardware addresses in settings')
(cherry picked from commit a9c4c1d84e)
(cherry picked from commit 581e0b0f2a)
2024-12-27 11:52:06 +01:00
Íñigo Huguet
f051edc56c ci: update distro versions 2024-12-27 11:45:04 +01:00
Íñigo Huguet
d73a214876 ci: Update ci-templates to a version that support Alpine versions
ci-templates only supported alpine:latest, but support for any other
version has been introduced. Use it so our Alpine pipelines stop
failing.

(cherry picked from commit 9354fabaa8)
(cherry picked from commit 2035048449)
(cherry picked from commit fe5a09b1ad)
(cherry picked from commit 3d80f73b3c)
2024-12-27 11:41:41 +01:00
Íñigo Huguet
bf72475494 CI: add testlog.txt as build artifacts
That way we will be able to check the logs in the case of failure.

(cherry picked from commit 0d4c8a235a)
(cherry picked from commit b6e2533f82)
(cherry picked from commit fc238062bd)
(cherry picked from commit e8532d4a41)
2024-12-27 11:41:22 +01:00
Íñigo Huguet
5c3000f277 release.sh: compare file with nm-1-46
In nm-1-48 it has differences because the build is done with meson and
not with autotools.

(cherry picked from commit 501cc1e02b)
2024-12-27 11:39:14 +01:00
Íñigo Huguet
f4568e0e38 release, find-backports: formatting and log small fixes
(cherry picked from commit 0180efed51)
(cherry picked from commit 365806aa3c)
(cherry picked from commit 8db2b8ef95)
2024-12-27 11:37:51 +01:00
Íñigo Huguet
f7cd43d6a6 find-backports: fix Ignore-Fixes detection
The regex for "Fixes" also matches with "Ignore-Fixes", so the commit is
added twice and then removed only once by the "Ignore-Fixes". It still
remains once in the list of commits to backport, making that
"Ignore-Fixes" does not work. Fix it.

(cherry picked from commit 0074fc4647)
(cherry picked from commit d02e722ece)
2024-12-27 11:37:51 +01:00
Íñigo Huguet
5ce2444743 release.sh: check the right pipelines
Now we are using scheduled pipelines for various purposes like
regenerating the container images and triage the issues and MRs. That
means that the last pipeline ran for main might not be the pipeline with
the jobs building and testing the code.

Use `source=push` to retrieve only pipelines that are not scheduled.

(cherry picked from commit c5e51bd5d8)
(cherry picked from commit 2355aca958)
2024-12-27 11:37:51 +01:00
Íñigo Huguet
07e55db974 release: fix help text
The help text is read from the comments at the top of the script itself.
However, to detect what lines belongs to the help text, a range was
defined as:
- Start: any line starting with `# `
- End: any line starting `# Run with --no-test`

If any later line starts with `# ` is considered as a new matching
range, and from it to the end of the file is printed too.

Fix it by defining the range:
- Start: line 2
- End: blank line

(cherry picked from commit b1c8b5482c)
(cherry picked from commit 02698911fa)
2024-12-27 11:37:51 +01:00
Íñigo Huguet
6fe5ffb7e4 release.sh: release to freedesktop.org, not to GNOME
GNOME has changed the process to publish releases to download.gnome.org.
Now, it is required to do it from the CI of projects hosted in GNOME's
repositories.

As we don't have the project hosted there, we have 2 options:
- Create a mirror and set up the CI so we continue using
  download.gnome.org.
- Stop publishing the tarballs there and do it in gitlab.freedesktop.org
  from now on.

After a brief discussion we have decided that the second makes more
sense, so adapt release.sh to do that.

https://discourse.gnome.org/t/gnome-release-service-ftpadmin-replacement-coming-11th-december/25487
https://handbook.gnome.org/maintainers/making-a-release.html
(cherry picked from commit 29708731fe)
(cherry picked from commit 68e6318f66)
(cherry picked from commit afbe8dd98b)
2024-12-27 11:37:50 +01:00
Gris Ge
2ad9fa82f4 sriov: only valid sriov capacity when enabled
NetworkManager current code will refuse to activate a connection if its
interface has no SRIOV capacity but holding a empty SRIOV settings.

This patch only valid SRIOV capacity when it is enabled(total_vfs > 0).

Resolves: https://issues.redhat.com/browse/RHEL-58397

Signed-off-by: Gris Ge <fge@redhat.com>
(cherry picked from commit 421ccf8b4c)
(cherry picked from commit c9e31e70cb)
(cherry picked from commit 90a3b01468)
(cherry picked from commit 296fc53ea8)
2024-11-13 11:53:24 +01:00
Beniamino Galvani
55e8fa129f device: fix bug when deactivating port connections asynchronously
When the attach_port()/detach_port() methods do not return immediately
(currently, only for OVS ports), the following situation can arise:

 - nm_device_controller_attach_port() starts the attachment by sending
   the command to ovsdb. Note that here we don't set
   `PortInfo->port_is_attached` to TRUE yet; that happens only after
   the asynchronous command returns;

 - the activation of the port gets interrupted because the connection
   is deleted;

 - the port device enters the deactivating state, triggering function
   port_state_changed()

 - the function calls nm_device_controller_release_port() which checks
   whether the port is already attached; since
   `PortInfo->port_is_attached` is not set yet, it assumes the port
   doesn't need to be detached;

 - in the meantime, the ovsdb operation succeeds. As a consequence,
   the kernel link is created even if the connection no longer exists.

Fix this by turning `port_is_attached` into a tri-state variable that
also tracks when the port is attaching. When it is, we need to perform
an explicit detach during deactivation.

Fixes: 9fcbc6b37d ('device: make attach_port() asynchronous')

https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/2043

Resolves: https://issues.redhat.com/browse/RHEL-58026
(cherry picked from commit a8329587c8)
(cherry picked from commit d809ca6db2)
(cherry picked from commit ca6ca684b2)
(cherry picked from commit 83c32e9f17)
2024-11-06 11:36:40 +01:00
Beniamino Galvani
c1e83dfdb9 libnm-glib-aux: fix "maybe-uninitialized" error when generating UUID
GCC 14 complans with:

  src/libnm-glib-aux/nm-uuid.c: In function 'nm_uuid_generate_from_strings_strv':
  src/libnm-glib-aux/nm-uuid.c:492:12: error: '_1' may be used uninitialized [-Werror=maybe-uninitialized]
    492 |     return nm_uuid_generate_from_string_str(s, slen, uuid_type, type_args);
        |            ^
  src/libnm-glib-aux/nm-uuid.c:392:1: note: by argument 1 of type 'const char *' to 'nm_uuid_generate_from_string_str' declared here
    392 | nm_uuid_generate_from_string_str(const char   *s,
        | ^

"-Wmaybe-uninitialized" diagnoses passing pointers or references to
uninitialized memory to functions taking const-qualified arguments.

In this case, nm_uuid_generate_from_string_str()'s first argument is a
"const char *" and so the compiler expects that the string is always
initialized. However, it is not initialized when len is zero.

A non-null zero-length array can be specified in two ways: by setting
len to zero, or by setting len to -1 and having NULL as first
element. Handle both cases in the same way.

(cherry picked from commit 2386c0f52d)
(cherry picked from commit cbf20a2317)
2024-09-26 10:47:19 +02:00
Thomas Haller
09340c75c4 core: ignore unused result warning of audit_log_user_message()
Affects build on rawhide (audit-libs-4.0-8.fc40):

    src/core/nm-audit-manager.c: In function 'nm_audit_log':
    src/core/nm-audit-manager.c:188:9: error: ignoring return value of 'audit_log_user_message' declared with attribute 'warn_unused_result' [-Werror=unused-result]
      188 |         audit_log_user_message(priv->auditd_fd,
          |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      189 |                                AUDIT_USYS_CONFIG,
          |                                ~~~~~~~~~~~~~~~~~~
      190 |                                build_message(&strbuf, BACKEND_AUDITD, fields),
          |                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      191 |                                NULL,
          |                                ~~~~~
      192 |                                NULL,
          |                                ~~~~~
      193 |                                NULL,
          |                                ~~~~~
      194 |                                success);
          |                                ~~~~~~~~

86bfa9bf4f
(cherry picked from commit ced0cf8005)
(cherry picked from commit 52ab487fd6)
2024-09-26 10:39:07 +02:00
Beniamino Galvani
fb2dc25787 libnm-core: fix validation of ovs-dpdk interface name
An ovs-dpdk interface doesn't have a kernel link and doesn't have the
15-character limit on the name.

Fixes: 3efe070dfc ('libnm: validate "connection.interface-name" at one place only')

Resolves: https://issues.redhat.com/browse/RHEL-60233

https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/2044
(cherry picked from commit fda05b0af0)
(cherry picked from commit f6e4e53775)
(cherry picked from commit c7035db5b4)
(cherry picked from commit 73f10372f9)
2024-09-26 10:11:48 +02:00
Thomas Haller
0c9c387ebe config/tests: fix test failure in "/config/set-values"
GKeyfile changed something about how to handle invalid escape sequences.
As we don't want to test GKeyfile (per-se), just adjust to test to not
hit the problem.

This would fail with glib2-2.79.1-1.fc40:

  # ./tools/run-nm-test.sh -m src/core/tests/config/test-config -p /config/set-values
  TAP version 13
  # random seed: R02Sb8afff1ec38ca5a1b7713e8c40eb4f56
  # Start of config tests
  # GLib-GIO-DEBUG: _g_io_module_get_default: Found default implementation local (GLocalVfs) for ?gio-vfs?
  # (src/core/tests/config/test-config.c:1107) invalid value in config-data .intern.with-whitespace.key2 = (null) (instead of " b c\,  d  ")
  ./tools/run-nm-test.sh: line 307: 245847 Trace/breakpoint trap   (core dumped) "${NMTST_DBUS_RUN_SESSION[@]}" "$TEST" "${TEST_ARGV[@]}"
  exec "src/core/tests/config/test-config" failed with exit code 133

(cherry picked from commit 7f2a32fa11)
(cherry picked from commit 1803520a7a)
2024-09-26 10:11:48 +02:00
Stanislas FAYE
b409d8f1d6 test: disable vlan_xgress unit test
Disable the vlan_xgress unit test which was failing.
This test is currently being work and is going to be fixed soon.

(cherry picked from commit 6e30e37ebe)
2024-09-26 10:09:30 +02:00
Thomas Haller
52eaa64ea1 libnm: use flexible array member in NMUtilsStrStrDictKey
Otherwise, gcc-14.0.1-0.2.fc40 warns:

  ../src/libnm-core-impl/nm-utils.c: In function _nm_utils_strstrdictkey_create:
  ../src/libnm-core-impl/nm-utils.c:5076:16: error: allocation of insufficient size '1' for type 'NMUtilsStrStrDictKey' {aka 'struct _NMUtilsStrStrDictKey'} with size '2' [-Werror=alloc-size]
   5076 |         return g_malloc0(1);
        |                ^~~~~~~~~~~~

(cherry picked from commit 63ab0d926d)
(cherry picked from commit 157c2ffeee)
2024-09-26 10:05:09 +02:00
Thomas Haller
0df8bf56ad libnm: avoid "-Wnonnull-compare warnings with "static" array declarator
With a static array, we indicate that the argument must not be NULL.
Gcc-14.0.1-0.2.fc40 now warns against that:

    CC       src/libnm-base/libnm_base_la-nm-base.lo
  In file included from ../src/libnm-std-aux/nm-default-std.h:102,
                   from ../src/libnm-glib-aux/nm-default-glib.h:11,
                   from ../src/libnm-glib-aux/nm-default-glib-i18n-lib.h:13,
                   from ../src/libnm-base/nm-base.c:3:
  ../src/libnm-base/nm-base.c: In function 'nm_net_devname_infiniband':
  ../src/libnm-std-aux/nm-std-aux.h:191:12: error: 'nonnull' argument 'name' compared to NULL [-Werror=nonnull-compare]
    191 |         if (expr)                      \
        |            ^
  ../src/libnm-std-aux/nm-std-aux.h:202:27: note: in expansion of macro '_NM_BOOLEAN_EXPR_IMPL'
    202 |                           _NM_BOOLEAN_EXPR_IMPL(NM_UNIQ, expr))
        |                           ^~~~~~~~~~~~~~~~~~~~~
  ../src/libnm-glib-aux/nm-macros-internal.h:1693:31: note: in expansion of macro 'NM_BOOLEAN_EXPR'
   1693 | #define _G_BOOLEAN_EXPR(expr) NM_BOOLEAN_EXPR(expr)
        |                               ^~~~~~~~~~~~~~~
  /usr/include/glib-2.0/glib/gmacros.h:1244:43: note: in expansion of macro '_G_BOOLEAN_EXPR'
   1244 | #define G_LIKELY(expr) (__builtin_expect (_G_BOOLEAN_EXPR(expr), 1))
        |                                           ^~~~~~~~~~~~~~~
  /usr/include/glib-2.0/glib/gmessages.h:656:9: note: in expansion of macro 'G_LIKELY'
    656 |     if (G_LIKELY (expr)) \
        |         ^~~~~~~~
  ../src/libnm-base/nm-base.c:57:5: note: in expansion of macro 'g_return_val_if_fail'
     57 |     g_return_val_if_fail(name, NULL);
        |     ^~~~~~~~~~~~~~~~~~~~

  ../src/libnm-core-impl/nm-setting-wireguard.c: In function '_nm_wireguard_peer_set_public_key_bin':
  ../src/libnm-core-impl/nm-setting-wireguard.c:316:8: error: 'nonnull' argument 'public_key' compared to NULL [-Werror=nonnull-compare]
    316 |     if (!public_key)
        |        ^

Convert these checks to an nm_assert() to suppress the warning.

(cherry picked from commit 7a031eef5d)
(cherry picked from commit aeaba8a2a1)
2024-09-26 10:04:40 +02:00
Thomas Haller
fd63580c7c build: workaround -Wno-calloc-transposed-args warning in systemd code
Upstream systemd fixed this compiler warning. What really needs to be
done, is re-importing the upstream code.

In the meantime, suppress the warning that hits on GCC 14.

This is a temporary workaround!

See-also: fdd84270df
(cherry picked from commit b1016e3be8)
(cherry picked from commit df879e6950)
2024-09-26 10:02:08 +02:00
Thomas Haller
24363ade54 build: use "-Wno-nonnull-compare" for building systemd
systemd uses that too. We cannot enable compiler warnings that
upstream doesn't want to support.

See-also: b59bce308d
(cherry picked from commit ad22a96da9)
(cherry picked from commit 4c66cce980)
2024-09-26 10:00:57 +02:00
Beniamino Galvani
8c8d39eff3 policy: retry hostname resolution when it fails
Currently if the system hostname can't be determined, NetworkManager
only retries when something changes: a new address is added, the DHCP
lease changes, etc.

However, it might happen that the current failure in looking up the
hostname is caused by an external factor, like a temporary outage of
the DNS server.

Add a mechanism to retry the resolution with an increasing timeout.

https://issues.redhat.com/browse/RHEL-17972
(cherry picked from commit 04ad4c86d0)
(cherry picked from commit 3555dbd2f2)
(cherry picked from commit 7ae0f3edf0)
2024-08-30 13:41:22 +02:00
Beniamino Galvani
b60c1a6d25 libnm-core: avoid compiler warnings in team settings
GCC 14 with LTO complains with:

  In function 'nm_team_link_watcher_new_ethtool',
      inlined from 'nm_team_link_watcher_new_ethtool' at src/libnm-core-impl/nm-setting-team.c:106:1:
  src/libnm-core-impl/nm-setting-team.c:130:33: error: array subscript 'struct NMTeamLinkWatcher[0]' is partly outside array bounds of 'unsigned char[16]' [-Werror=array-bounds=]
    130 |     watcher->ref_count          = 1;
        |                                 ^
  src/libnm-core-impl/nm-setting-team.c:128:15: note: object of size 16 allocated by 'g_malloc'
    128 |     watcher = g_malloc(nm_offsetofend(NMTeamLinkWatcher, ethtool));
        |               ^

even if the warning is disabled via pragma directives in that
code. This looks like the following GCC bug:

  https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80922

saying

  We do not track warning options (and thus optimize pragmas /
  attributes) across LTO because they are not saved in the function
  specific optimization flag section.

We use a (NMTeamLinkWatcher *) to point to a memory area that is
shorter than the struct, because depending on the watcher type we need
to store different parameters; in this way we can save few bytes of
memory for some watcher types. However, this often breaks when
upgrading the compiler; instead just allocate the full struct.

(cherry picked from commit d369f55192)
(cherry picked from commit efa1d0e173)
2024-08-28 10:49:10 +02:00
Thomas Haller
571273f71c libnm: avoid "-Walloc-size" warning in nm_team_link_watcher_new_ethtool()
gcc-14.0.1-0.2.fc40 warns:

    CC       src/libnm-core-impl/libnm_core_impl_la-nm-setting-team.lo
  ../src/libnm-core-impl/nm-setting-team.c: In function nm_team_link_watcher_new_ethtool:
  ../src/libnm-core-impl/nm-setting-team.c:127:13: error: allocation of insufficient size 16 for type NMTeamLinkWatcher with size 48 [-Werror=alloc-size]
    127 |     watcher = g_malloc(nm_offsetofend(NMTeamLinkWatcher, ethtool));
        |             ^

(cherry picked from commit 5715feebe7)
(cherry picked from commit eaa3a4e396)
2024-08-28 10:47:36 +02:00
Íñigo Huguet
c49c8fb488 daemon-helper: remove unused variables
They were backported from 229bebfae9 ('nm-daemon-helper: add "service"
argument') but they are not needed in this branch because they were only
used by c42f6f0997 ('daemon-helper: use _nm_strerror_r() to avoid
non-thread-safe strerror()') which is not backported.

As they are unused they trigger a warning, remove them.
2024-08-28 10:08:45 +02:00
Íñigo Huguet
29de766b9e Revert "daemon-helper: use _nm_strerror_r() to avoid non-thread-safe strerror()"
The function is not backported to this branch, and it's not 100%
necessary.

This reverts commit 93359f2b32.
2024-08-28 09:59:47 +02:00
Thomas Haller
c987db7f8c std-aux: add NM_STRINGIFY() macro
(cherry picked from commit 025d6898fe)
(cherry picked from commit 9fd5a78eb9)
2024-08-28 09:51:15 +02:00
Thomas Haller
696a7b5721 std-aux: move NM_PRAGMA_WARNING_DISABLE() macro from libnm-glib-aux to libnm-std-aux
Will be used by nm_assert().

(cherry picked from commit c0338526f3)
(cherry picked from commit a5f75625e2)
2024-08-28 09:23:08 +02:00
Thomas Haller
af1b370281 std-aux: workaround usage of _Pragma() inside nm_assert()
Older gcc versions don't like this. The _Pragam() itself is to workaround a
-Wnonnull-compare warning with gcc 14.

After all, we use compiler warning extensively. They are our linters and have
necessarily false positives. To make them usable across a wide range of
compilers, is a constant effort.

Here is another one.

The error:

  ./src/libnm-std-aux/nm-std-aux.h: In function ‘nm_utils_addr_family_other’:
  ./src/libnm-std-aux/nm-std-aux.h:230:36: error: expected expression before ‘#pragma’
    230 | #define NM_PRAGMA_DIAGNOSTICS_PUSH _Pragma("GCC diagnostic push")
        |                                    ^~~~~~~
  ./src/libnm-std-aux/nm-std-aux.h:232:5: note: in expansion of macro ‘NM_PRAGMA_DIAGNOSTICS_PUSH’
    232 |     NM_PRAGMA_DIAGNOSTICS_PUSH _Pragma(_NM_PRAGMA_WARNING_DO(warning))
        |     ^~~~~~~~~~~~~~~~~~~~~~~~~~
  ./src/libnm-std-aux/nm-std-aux.h:291:9: note: in expansion of macro ‘NM_PRAGMA_WARNING_DISABLE’
    291 |         NM_PRAGMA_WARNING_DISABLE("-Wnonnull-compare");                \
        |         ^~~~~~~~~~~~~~~~~~~~~~~~~
  ./src/libnm-std-aux/nm-std-aux.h:953:9: note: in expansion of macro ‘nm_assert’
    953 |         nm_assert(true || NM_UNIQ_T(xx, uniq) == (x));                    \
        |         ^~~~~~~~~
  ./src/libnm-std-aux/nm-std-aux.h:961:27: note: in expansion of macro ‘_NM_IN_SET’
    961 | #define NM_IN_SET(x, ...) _NM_IN_SET(NM_UNIQ, ||, typeof(x), x, __VA_ARGS__)
        |                           ^~~~~~~~~~
  ./src/libnm-std-aux/nm-std-aux.h:1493:15: note: in expansion of macro ‘NM_IN_SET’
   1493 |     nm_assert(NM_IN_SET((addr_family), NM_AF_INET, NM_AF_INET6))
        |               ^~~~~~~~~
  ./src/libnm-std-aux/nm-std-aux.h:1502:9: note: in expansion of macro ‘nm_assert_addr_family’
   1502 |         nm_assert_addr_family(NM_UNIQ_T(_addr_family, uniq));    \
        |         ^~~~~~~~~~~~~~~~~~~~~
  ./src/libnm-std-aux/nm-std-aux.h:1510:33: note: in expansion of macro ‘_NM_IS_IPv4’
   1510 | #define NM_IS_IPv4(addr_family) _NM_IS_IPv4(NM_UNIQ, addr_family)
        |                                 ^~~~~~~~~~~
  ./src/libnm-std-aux/nm-std-aux.h:1515:12: note: in expansion of macro ‘NM_IS_IPv4’
   1515 |     return NM_IS_IPv4(addr_family) ? NM_AF_INET6 : NM_AF_INET;
        |            ^~~~~~~~~~

Fixes: 62c1745f62 ('std-aux: suppress "-Wnonnull-compare" warning in nm_assert()')
(cherry picked from commit e4b154e1b0)
(cherry picked from commit 40a77de88e)
2024-08-28 09:00:04 +02:00
Thomas Haller
2fafea5e4b std-aux: suppress "-Wnonnull-compare" warning in nm_assert()
When we use a "static" array declarator to a function, we understand
and tell the compiler that the argument must not be NULL.

But now gcc-14.0.1-0.2.fc40 starts warning about NULL checks for
such arguments.

  static void foo(char args[static 10]) {
      nm_assert(args);
      sprintf(args, "hi");
  }

Granted, the compiler is right, and we know that this condition is not
supposed to be violated. A logical thing would be just to drop the
assertion.

Instead, suppress "-Wnonnull-compare" warnings inside a nm_assert(). An
nm_assert() is more than a run time check, it's an additional
self-documenting code of the invariants.

It's fine to assert for something that is true. Actually, all the
conditions that we assert against, hold. The compiler telling us that
the condition that we assert against is valid, is not useful.

(cherry picked from commit 62c1745f62)
(cherry picked from commit 3fb0f9f8a7)
2024-08-28 08:59:44 +02:00
Thomas Haller
93359f2b32 daemon-helper: use _nm_strerror_r() to avoid non-thread-safe strerror()
Yes, there probably are not multiple threads here. It's a matter of principle to
not use smelly functions.

Also, copy the "errno" value we want to print, before calling various functions.

(cherry picked from commit c42f6f0997)
2024-08-27 11:10:35 +02:00
Beniamino Galvani
524febf271 docs: document the hostname management workflow
(cherry picked from commit 543ebef32b)
(cherry picked from commit 9f09d4d364)
(cherry picked from commit ff81488583)
2024-08-19 17:14:34 +02:00