GCC 10 complains about accesses to elements of zero-length arrays that
overlap other members of the same object:
src/platform/nm-platform-utils.c: In function ‘nmp_utils_ethtool_get_permanent_address’:
src/platform/nm-platform-utils.c:854:29: error: array subscript 0 is outside the bounds of an interior zero-length array ‘__u8[0]’ {aka ‘unsigned char[0]’} [-Werror=zero-length-bounds]
854 | if (NM_IN_SET (edata.e.data[0], 0, 0xFF)) {
./shared/nm-glib-aux/nm-macros-internal.h:731:20: note: in definition of macro ‘_NM_IN_SET_EVAL_N’
Fix this warning.
GCC 10 complains about accesses to elements of zero-length arrays that
overlap other members of the same object:
src/platform/nm-platform-utils.c: In function ‘ethtool_get_stringset’:
src/platform/nm-platform-utils.c:355:27: error: array subscript 0 is outside the bounds of an interior zero-length array ‘__u32[0]’ {aka ‘unsigned int[0]’} [-Werror=zero-length-bounds]
355 | len = sset_info.info.data[0];
| ~~~~~~~~~~~~~~~~~~~^~~
In file included from src/platform/nm-platform-utils.c:12:
/usr/include/linux/ethtool.h:647:8: note: while referencing ‘data’
647 | __u32 data[0];
| ^~~~
Fix this warning.
I think this solution is not right, because "char buf" is not guaranteed
to have the correct alignment. Revert, and solve it differently.
This reverts commit 6345a66153.
When we deactivate a virtual device, we usually schedule the deletion
of the link in an idle handler. That action will be executed at a
later time when the device is already in the disconnected state.
Similarly, for ovs interfaces we send the deletion command to the
ovsdb and then proceed to the disconnected state.
However, in the first case there is the guarantee that the link will
be deleted at some point, while for ovs interfaces it may happen that
ovs decides to reuse the same link if there is an addition
queued. Since reusing the same link confuses NM, let's implement
deactivate_async() for ovs-interfaces and wait that the link actually
goes away before proceeding.
https://bugzilla.redhat.com/show_bug.cgi?id=1782701https://gitlab.freedesktop.org/NetworkManager/NetworkManager/merge_requests/402
G_SOURCE_FUNC has attribute GLIB_AVAILABLE_MACRO_IN_2_58, which means
that the compiler will emit a warning when GLIB_VERSION_MAX_ALLOWED <
GLIB_VERSION_2_58. We currently define GLIB_VERSION_MAX_ALLOWED as
GLIB_VERSION_2_40. Redefine the macro to fix the following build error
when using glib >= 2.63.5 (the version in which the attribute was
added):
CC shared/nm-glib-aux/libnm_glib_aux_la-nm-shared-utils.lo
shared/nm-glib-aux/nm-shared-utils.c: In function ‘nm_g_unix_fd_source_new’:
shared/nm-glib-aux/nm-shared-utils.c:3679:13: error: Not available before [-Werror]
3679 | g_source_set_callback (source, G_SOURCE_FUNC (source_func), user_data, destroy_notify);
Fixes: 9c5741ccd2 ('shared/nm-glib: add compat implementation for G_SOURCE_FUNC()')
Properly initialize 'overload' when the space in the file section
ends.
shared/n-dhcp4/src/n-dhcp4-outgoing.c: In function ‘n_dhcp4_outgoing_append’:
shared/n-dhcp4/src/n-dhcp4-outgoing.c:198:17: error: ‘overload’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
Add missing 'extern' keyword to fix the following error caused by GCC
10 defaulting to -fno-common:
src/settings/plugins/ifcfg-rh/.libs/libnms-ifcfg-rh-core.a(libnms_ifcfg_rh_core_la-shvar.o):/root/NetworkManager/src/settings/plugins/ifcfg-rh/nms-ifcfg-rh-utils.h:36: multiple definition of `nms_ifcfg_well_known_keys';
src/settings/plugins/ifcfg-rh/.libs/libnm_settings_plugin_ifcfg_rh_la-nms-ifcfg-rh-plugin.o:/root/NetworkManager/src/settings/plugins/ifcfg-rh/nms-ifcfg-rh-utils.h:36: first defined here
GCC 10 complains about accesses to elements of zero-length arrays that
overlap other members of the same object:
src/platform/nm-platform-utils.c: In function ‘nmp_utils_ethtool_get_permanent_address’:
src/platform/nm-platform-utils.c:854:29: error: array subscript 0 is outside the bounds of an interior zero-length array ‘__u8[0]’ {aka ‘unsigned char[0]’} [-Werror=zero-length-bounds]
854 | if (NM_IN_SET (edata.e.data[0], 0, 0xFF)) {
./shared/nm-glib-aux/nm-macros-internal.h:731:20: note: in definition of macro ‘_NM_IN_SET_EVAL_N’
Fix this warning.
GCC 10 complains about accesses to elements of zero-length arrays that
overlap other members of the same object:
src/platform/nm-platform-utils.c: In function ‘ethtool_get_stringset’:
src/platform/nm-platform-utils.c:355:27: error: array subscript 0 is outside the bounds of an interior zero-length array ‘__u32[0]’ {aka ‘unsigned int[0]’} [-Werror=zero-length-bounds]
355 | len = sset_info.info.data[0];
| ~~~~~~~~~~~~~~~~~~~^~~
In file included from src/platform/nm-platform-utils.c:12:
/usr/include/linux/ethtool.h:647:8: note: while referencing ‘data’
647 | __u32 data[0];
| ^~~~
Fix this warning.
Fix the following warning:
Makefile.am:3671: warning: $(src_devices_wifi_libnm_device_plugin_wifi_la_OBJECTS) was already defined in condition TRUE, which includes condition WITH_WIFI ...
Makefile.am:1075: ... '$(src_devices_wifi_libnm_device_plugin_wifi_la_OBJECTS)' previously defined here
Building with GCC 10 gives the following error:
multiple definition of_nm_jansson_json_object_iter_key';
libnm/.libs/liblibnm.a(libnm_core_la-nm-json.o):/builddir/build/BUILD/NetworkManager-1.23.1/libnm-core/nm-json.c:24: first defined here /usr/bin/ld:
libnm/.libs/liblibnm.a(libnm_core_la-nm-team-utils.o):/usr/include/jansson.h:202: multiple definition of _nm_jansson_json_object_iter';
This happens because GCC 10 defaults to -fno-common and so multiple
definitions of the same global variable are not merged together.
_nm_jansson_json_* symbols are defined in nm-json.c as void pointers
and, due to the following macros in nm-json.h:
#define json_object_iter_next (*_nm_jansson_json_object_iter_next)
...
the function declaration in jansson.h:
void *json_object_iter_next(json_t *object, void *iter);
becomes a global variable as well:
void *(*_nm_jansson_json_object_iter_next)(json_t *object, void *iter);
So, the symbol is present in nm-json.o and all other object files that
include nm-json.h, and -fcommon is required. Without it, it would be
necessary to define the symbols only in one place (for example,
nm-json.c), but then static inline functions from the jannson.h header
would still refer to the original (missing) jansson functions.
For the moment, just use -fcommon.
curl_multi_setopt() accepts CURLMOPT_* options, not CURLOPT_*
ones. Found by GCC 10:
clients/cloud-setup/nm-http-client.c:700:38: error: implicit conversion from ‘enum <anonymous>’ to ‘CURLMoption’ [-Werror=enum-conversion]
700 | curl_multi_setopt (priv->mhandle, CURLOPT_VERBOSE, 1);
Fixes: 69f048bf0c ('cloud-setup: add tool for automatic IP configuration in cloud')
As it is possible to configure an arbitrarily large DHCP timeout, it
should be possible to also set a large timeout for IPv6
autoconfiguration. Currently the timeout can only be changed via
sysctl. Leave the lower bound because the default kernel sysctl value
is 3 * 4 = 12 seconds and so without the lower limit the default
timeout would change from 30 to 12 seconds for every user, which seems
a big change and could possibly break users' setup.
https://bugzilla.redhat.com/show_bug.cgi?id=1795957
If the current lease expires, we start the grace period in which the
clients starts again from the INIT DHCP state (i.e. sending DISCOVER
messages). If it is able to obtain a new lease, it must be accepted or
otherwise the client will not renew it.
Currently the DHCP client reports the BOUND state not only when the
lease is obtained initially but also when it is renewed. Having a
different state for the renewal will be used by NMDevice in the next
patch to determine whether the lease needs to be accept()ed or not.
Move back to INIT state after the lease expires, as per section 4.4.5
of RFC 2131. Previously the client just moved to EXPIRED, closed the
connection and cleared the probe, leaving to the caller of the library
the choice to create a new client instance and to start from
scratch. However, it seems more useful that the client, once
initialized, always tries to get a lease even after an expiration.
Currently the duration of the DHCP grace period (in which we try to
acquire a new lease after expiration) is hardcoded to 480
seconds. That value seems arbitrary and too long for the default
configuration. Since we already have a property that allows the user
to configure how long NM should try to get the lease initially, it
makes sense to use it also for retries after lease expirations.
In particular, setting the ipvx.dhcp-timeout to a high value extends
also the grace period to a very long time, potentially forever.
The signal is unused (and should be removed).
Still, the parameter passed to g_signal_emit() is a C string, not a
GVariant. I think as there are no subscribers, glib wouldn't actually
do anything with the arguments. Though, I am not sure whether glib still
tries to initialize a GValue with a GVariant type, leading to a crash.
Fixes: f05b7a78c9 ('supplicant: Track P2P Group information, creation and destruction')
We should use the same "is-valid" function everywhere.
Since nm_utils_ipaddr_valid() is part of libnm, it does not qualify.
Use nm_utils_ipaddr_is_valid() instead.
This should give the compiler more possibilities to warn about wrong
use of the API.
In practice, my current compiler wouldn't flag any issues. However,
some compilers (or compile options) might.
and _nm_utils_inet6_ntop() instead of nm_utils_inet6_ntop().
nm_utils_inet4_ntop()/nm_utils_inet6_ntop() are public API of libnm.
For one, that means they are only available in code that links with
libnm/libnm-core. But such basic helpers should be available everywhere.
Also, they accept NULL as destination buffers. We keep that behavior
for potential libnm users, but internally we never want to use the
static buffers. This patch needs to take care that there are no callers
of _nm_utils_inet[46]_ntop() that pass NULL buffers.
Also, _nm_utils_inet[46]_ntop() are inline functions and the compiler
can get rid of them.
We should consistently use the same variant of the helper. The only
downside is that the "good" name is already taken. The leading
underscore is rather ugly and inconsistent.
Also, with our internal variants we can use "static array indices in
function parameter declarations" next. Thereby the compiler helps
to ensure that the provided buffers are of the right size.
