Surisingly, the compiler may detect the remaining obj_type in
the default switch. Then, inlining nmp_class_from_type() it may detect
that this is only possible to hit with an out or range access to
_nmp_classes array.
Rework the code to avoid that compiler warning. It's either way not
supposed to happen.
Also, drop the default switch case and explicitly list the enum values.
Otherwise it is error prone to forget a switch case.
Clang 10 doesn't like NM_IN_SET() with strings and is right about that:
../libnm-core/tests/test-general.c:7763:9: error: result of comparison against a string literal is unspecified (use an explicit string comparison function instead) [-Werror,-Wstring-compare]
(void) NM_IN_SET ("a", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16");
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
However, NM_IN_STRSET() should work.
Otherwise, we get test failures with valgrind on fedora:rawhide
(valgrind-3.15.0-18.fc33.x86_64.rpm, gcc-10.0.1-0.8.fc33.x86_64,
glib2-devel-2.63.5-3.fc33.x86_64):
>>>> PRINT VALGRIND LOGS (valgrind test) (start)
+ find -name '*.valgrind-log' -print0
+ xargs -0 grep -H '^'
./src/devices/wwan/tests/test-service-providers.valgrind-log:--95634-- WARNING: unhandled amd64-linux syscall: 315
./src/devices/wwan/tests/test-service-providers.valgrind-log:--95634-- You may be able to write your own handler.
./src/devices/wwan/tests/test-service-providers.valgrind-log:--95634-- Read the file README_MISSING_SYSCALL_OR_IOCTL.
./src/devices/wwan/tests/test-service-providers.valgrind-log:--95634-- Nevertheless we consider this a bug. Please report
./src/devices/wwan/tests/test-service-providers.valgrind-log:--95634-- it at http://valgrind.org/support/bug_reports.html.
./libnm/tests/test-remote-settings-client.valgrind-log:--95245-- WARNING: unhandled amd64-linux syscall: 315
./libnm/tests/test-remote-settings-client.valgrind-log:--95245-- You may be able to write your own handler.
./libnm/tests/test-remote-settings-client.valgrind-log:--95245-- Read the file README_MISSING_SYSCALL_OR_IOCTL.
./libnm/tests/test-remote-settings-client.valgrind-log:--95245-- Nevertheless we consider this a bug. Please report
./libnm/tests/test-remote-settings-client.valgrind-log:--95245-- it at http://valgrind.org/support/bug_reports.html.
./libnm/tests/test-secret-agent.valgrind-log:--95280-- WARNING: unhandled amd64-linux syscall: 315
./libnm/tests/test-secret-agent.valgrind-log:--95280-- You may be able to write your own handler.
./libnm/tests/test-secret-agent.valgrind-log:--95280-- Read the file README_MISSING_SYSCALL_OR_IOCTL.
./libnm/tests/test-secret-agent.valgrind-log:--95280-- Nevertheless we consider this a bug. Please report
./libnm/tests/test-secret-agent.valgrind-log:--95280-- it at http://valgrind.org/support/bug_reports.html.
./libnm/tests/test-nm-client.valgrind-log:--95208-- WARNING: unhandled amd64-linux syscall: 315
./libnm/tests/test-nm-client.valgrind-log:--95208-- You may be able to write your own handler.
./libnm/tests/test-nm-client.valgrind-log:--95208-- Read the file README_MISSING_SYSCALL_OR_IOCTL.
./libnm/tests/test-nm-client.valgrind-log:--95208-- Nevertheless we consider this a bug. Please report
./libnm/tests/test-nm-client.valgrind-log:--95208-- it at http://valgrind.org/support/bug_reports.html.
+ echo '>>>> PRINT VALGRIND LOGS (valgrind test) (done)'
>>>> PRINT VALGRIND LOGS (valgrind test) (done)
The advantage is that the API is now the same for IPv4 and IPv6: it's
all nm_dhcp_config_*() and we can (easier) treat the address family
generically.
We still need two distinct GObject types, mainly because of the
glue code for exposing the object on D-Bus as NMDBusObject. Of course,
that could be solved differently, but as it is, it's quite nice.
It would be better if we would be able to use NMLinkType enum
as an index (e.g. into an array of LinkDesc structures). For that,
it is necessary that the enum is just consecutive numbers.
Don't assign special meaning to the enum. Also, this was only
used at two places, that we can solve differently.
Seen on Debian 9, clang-3.8 (1:3.8.1-24):
../libnm-core/nm-setting-bond.c:596:49: error: comparison of constant 32 with expression of type 'NMBondMode' is always true [-Werror,-Wtautological-constant-out-of-range-compare]
nm_assert (_NM_INT_NOT_NEGATIVE (mode) && mode < 32);
~~~~ ^ ~~
This warning is not useful. While it may be implementation defined how enum
values outside the defined ones are handled, we commonly rely on placing
special numeric values in enums (e.g. ((NMEnumType) -1)).
An enum is (with our compilers) just a glorified integer, and there is nothing
preventing it from being outside the enum values. The warning is not helpful
and outright wrong. Disable it.
See-also: https://bugs.llvm.org//show_bug.cgi?id=16154
Fixes: 957bb2e111 ('libnm: use binary search for _nm_setting_bond_option_supported() implementation')
With `./configure --enable-more-asserts`, we add extra -W flags to
AM_CFLAGS. This variable is only used, if the per-library override
libnm_core_libnm_core_la_CFLAGS is unspecified ([1]).
Usually we avoid this problem be never specifying library_CFLAGS, but
placing all our per-library flags to library_CPPFLAGS. While that is a
bit of a hack and misuse of CPPFLAGS, it works well (enough).
This was broken recently. The effect was, that libnm-core was not
build with AM_CFLAGS flags. Fix it.
[1] https://www.gnu.org/software/automake/manual/html_node/Flag-Variables-Ordering.html
Fixes: d2d6a68697 ('build: use -fcommon when building libnm-core')
verify() should validate options in a deterministic order, so that
the same profile (with same libnm version) gives the same failure
reason every time.
Hence, visit the options in sorted order, like we do for nm_setting_bond_get_option().
Internally, the options are tracked in a hash table and of undefined
sort order. However, nm_setting_bond_get_option() always returns a stable
(sorted) order.
Move "mode" as first, because that is usually the most interesting option.
The effect is:
$ nmcli -o connection show "$BOND_PROFILE"
...
-bond.options: arp_interval=5,arp_ip_target=192.168.7.7,arp_validate=active,mode=balance-rr,use_carrier=0
+bond.options: mode=balance-rr,arp_interval=5,arp_ip_target=192.168.7.7,arp_validate=active,use_carrier=0
This doesn't affect keyfile, which sorts the hash keys themself (and
doesn't treat the "mode" special).
This however does affect ifcfg-rh writer how it writes the BONDING_OPTS
variable. I think this change is fine and preferable.
strcmp() is hard to understand visually. Especially when different patterns
are mixed, like:
if ( !strcmp (name, NM_SETTING_BOND_OPTION_MIIMON)
&& strcmp (value, "0") != 0) {
When AddConnection() or Update() terminate, the (unrealized) virtual
device should be already be available, otherwise an activation attempt
of that connection can fail.
https://bugzilla.redhat.com/show_bug.cgi?id=1804350
This reverts commit c163207b07.
The interface name might come from the command line or from a filename
(like during nm_vpn_wireguard_import()). It's not clear that this
is valid UTF-8. Asserting against that requires the caller to ensure
that the encoding is valid. That is cumbersome, especially since we anyway
check. Just report a regular error.
quoting 'man ovs-vswitchd.conf.db':
"The name must be alphanumeric and must not contain forward or backward
slashes."
OVS actually accepts a wider range of chars (all printable UTF-8 chars),
NetworkManager restricts this to ASCII char as it's a safer option for
now since OVS is not well documented on this matter.
https://bugzilla.redhat.com/show_bug.cgi?id=1788432
Fixes: e7d72a14f6 ('libnm-core: use different ifname validation function for OVS bridges, ports and interfaces')
When the ovs interface gets deactivated, it is released from the
master port and we call nm_device_update_from_platform_link (dev,
NULL) to ignore any later event for the interface. This is important
especially because it sets a zero ifindex on the interface and so,
later when the link disappears, we don't unmanage the device but
directly remove it.
However, since ovs commands are queued, the link could appear during
the deactivation and we need to ignore such events. Add a new device
method can_update_from_platform_link() for such purpose.
Tracking the deletion of link by ifindex is difficult because the
ifindex of the device is updated through delayed (idle) calls in
NMDevice and so there is the possibility that at a certain time the
device ifindex is not in sync with platform state. It seems simpler to
watch instead the interface name. The ugly thing is that the interface
name can be changed externally, but if users do that on an activating
device they are looking for trouble.
Also change the deactivate code to deal with the scenario where we
already created the interface in the ovsdb but the link didn't show up
yet. To ensure a proper cleanup we must wait that the link appears and
then goes away; however the link may never appear if vswitchd sees
only the last state in ovsdb, and so we must use a ugly timeout to
avoid waiting forever.
https://bugzilla.redhat.com/show_bug.cgi?id=1787989
