Add option to set ofport_request when configuring ovs interface. When
connection with ofport_request configured is activated ovsdb will first
try to activated on the port set by ofport_request.
the .h.in file is not formatted by our nm-code-format.sh
file. It also contains .in template parameters that the
formatting would destroy.
Still, follow our current style and reformat the parts manually.
It's between "stop" and "clean". It removes the container,
but keeps the container images. This is to fast restart without
rebuilding the container (image).
Because, why not?
The client side determines the UUID, so there is no security implication
by letting the nmcli user explicitly choose it.
$ nmcli connection add type ethernet con-name x connection.uuid 6965f79c-4424-4918-98e8-3c0982434011
Connection 'x' (6965f79c-4424-4918-98e8-3c0982434011) successfully added.
$ nmcli connection add type ethernet con-name x connection.uuid 6965f79c-4424-4918-98e8-3c0982434011
Error: Failed to add 'x' connection: a connection with this UUID already exists
$ nmcli connection modify x connection.uuid 6965f79c-4424-4918-98e8-3c0982434011
$ nmcli connection modify x connection.uuid 6965f79c-4424-4918-98e8-3c0982434012
Error: failed to modify connection.uuid: the property can't be changed.
It is useful to modify the UUID in offline mode. Otherwise, it's
cumbersome to clone a profile, because the cloned profile will
have the same UUID (and NetworkManager cannot load them both
at the same time).
umask 077
nmcli --offline connection modify \
connection.id profile2 \
connection.uuid new \
< /etc/NetworkManager/system-connections/profile1.nmconnection \
> /etc/NetworkManager/system-connections/profile2.nmconnection \
The doctext doesn't actually work for `man nm-settings-nmcli`. The
generation of our docs is still an incomprehensible mess that needs
fixing.
We really should not pass bogus values "1, 0" to g_set_error().
As we don't care about a particular error code, use
NM_UTILS_ERROR_UNKNOWN.
While at it, use nm_utils_error_set() everywhere.
Try to first use a stack allocated buffer for the temporary string.
Only if the data is too large, NMStrBuf will automatically grow
the buffer on the heap.
In many cases, this buffer will be large enough, and we can avoid the
heap allocation.
- instead of g_str_hash()/g_direct_hash(), use our own functions
nm_str_hash()/nm_direct_hash(). Those use siphash24 with a random
seed.
- don't pass g_direct_equal() to GHashTable. When omitting the equal
function, it falls back to direct pointer comparison, which is likely
faster. In any case, it's consistent to not use g_direct_hash()
when using pointer equality.
- instead of g_int_hash()/g_int64_hash()/g_double_hash(), use
our nm_pint_hash()/nm_pint64_hash()/nm_pdouble_hash(). The latter
two don't exist yet.
The reason is that we want to use siphash24.
Yes, our name differs from glib's. Our naming seems to make sense
to me however, because we also have nm_pstr_hash(), nm_pdirect_hash()
and even nm_ppdirect_hash() for following the pointers. Naming is hard.
- instead of g_int_equal()/g_int64_equal()/g_double_equal() use
our nm_pint_equal()/nm_pint64_equal()/nm_pdouble_equal(). The latter
two don't exist yet. The reason is purely naming consistency since
our hash variants follow the other name.
- move the second g_file_test() inside the if-block. No need to check
twice, if the file exists.
- load_one_nic() can return NULL. Use nm_g_hash_table_lookup() to avoid
NULL pointer assertion.
- use cleanup attribute for "nic" variable, and explicitly pass
ownership on with g_steal_pointer().
The user might still want to see the scan list, to decide whether to
stop the hotspot/ADHOC connection and connect to something else.
Allow explicit scans.
ModuleNotFoundError was only introduced in later python 3 versions.
Use just "ImportError", which is the parent class anyway.
Fixes: f7e484c8ed ('tests: fix "test-client.py" ignoring missing "NM" module')
(cherry picked from commit 9902373c6d)
ModuleNotFoundError was only introduced in later python 3 versions.
Use just "ImportError", which is the parent class anyway.
Fixes: f7e484c8ed ('tests: fix "test-client.py" ignoring missing "NM" module')
If the MAC changes there is the possibility that the DHCP client will
not be able to renew the address because it uses the old MAC as
CHADDR. Depending on the implementation, the DHCP server might use
CHADDR (so, the old address) as the destination MAC for DHCP replies,
and those packets will be lost.
To avoid this problem, restart the DHCP client when the MAC changes.
https://bugzilla.redhat.com/show_bug.cgi?id=2110000
(cherry picked from commit 905adabdba)
If the MAC changes there is the possibility that the DHCP client will
not be able to renew the address because it uses the old MAC as
CHADDR. Depending on the implementation, the DHCP server might use
CHADDR (so, the old address) as the destination MAC for DHCP replies,
and those packets will be lost.
To avoid this problem, restart the DHCP client when the MAC changes.
https://bugzilla.redhat.com/show_bug.cgi?id=2110000
nm_utils_enum_to_str() can print flags, that is, combinations of
powers of two integers.
It also supports nicks, for certain flags.
When we have a nick for value zero, then that requires special
handling. Otherwise, that zero nick will always show up in the
string representation, although, it should only be used if the
enum value is exactly zero.
(cherry picked from commit eec9efd989)
1) The "enabled-on-global-iface" flag was odd. Instead, have only
and "enabled" flag and skip (by default) endpoints on interface
that have no default route. With the new flag "also-without-default-route",
this can be overruled. So previous "enabled-on-global-default" now is
the same as "enabled", and "enabled" from before behaves now like
"enabled,also-without-default-route".
2) What was also odd, as that the fallback default value for the flags
depends on "/proc/sys/net/mptcp/enabled". There was not one fixed
fallback default, instead the used fallback value was either
"enabled-on-global-iface,subflow" or "disabled".
Usually that is not a problem (e.g. the default value for
"ipv6.ip6-privacy" also depends on use_tempaddr sysctl). In this case
it is a problem, because the mptcp-flags (for better or worse) encode
different things at the same time.
Consider that the mptcp-flags can also have their default configured in
"NetworkManager.conf", a user who wants to switch the address flags
could previously do:
[connection.mptcp]
connection.mptcp-flags=0x32 # enabled-on-global-iface,signal,subflow
but then the global toggle "/proc/sys/net/mptcp/enabled" was no longer
honored. That means, MPTCP handling was always on, even if the sysctl was
disabled. Now, "enabled" means that it's only enabled if the sysctl
is enabled too. Now the user could write to "NetworkManager.conf"
[connection.mptcp]
connection.mptcp-flags=0x32 # enabled,signal,subflow
and MPTCP handling would still be disabled unless the sysctl
is enabled.
There is now also a new flag "also-without-sysctl", so if you want
to really enable MPTCP handling regardless of the sysctl, you can.
The point of that might be, that we still can configure endpoints,
even if kernel won't do anything with them. Then you could just flip
the sysctl, and it would start working (as NetworkManager configured
the endpoints already).
Fixes: eb083eece5 ('all: add NMMptcpFlags and connection.mptcp-flags property')
(cherry picked from commit c00873e08f)
nm_utils_enum_to_str() can print flags, that is, combinations of
powers of two integers.
It also supports nicks, for certain flags.
When we have a nick for value zero, then that requires special
handling. Otherwise, that zero nick will always show up in the
string representation, although, it should only be used if the
enum value is exactly zero.
1) The "enabled-on-global-iface" flag was odd. Instead, have only
and "enabled" flag and skip (by default) endpoints on interface
that have no default route. With the new flag "also-without-default-route",
this can be overruled. So previous "enabled-on-global-default" now is
the same as "enabled", and "enabled" from before behaves now like
"enabled,also-without-default-route".
2) What was also odd, as that the fallback default value for the flags
depends on "/proc/sys/net/mptcp/enabled". There was not one fixed
fallback default, instead the used fallback value was either
"enabled-on-global-iface,subflow" or "disabled".
Usually that is not a problem (e.g. the default value for
"ipv6.ip6-privacy" also depends on use_tempaddr sysctl). In this case
it is a problem, because the mptcp-flags (for better or worse) encode
different things at the same time.
Consider that the mptcp-flags can also have their default configured in
"NetworkManager.conf", a user who wants to switch the address flags
could previously do:
[connection.mptcp]
connection.mptcp-flags=0x32 # enabled-on-global-iface,signal,subflow
but then the global toggle "/proc/sys/net/mptcp/enabled" was no longer
honored. That means, MPTCP handling was always on, even if the sysctl was
disabled. Now, "enabled" means that it's only enabled if the sysctl
is enabled too. Now the user could write to "NetworkManager.conf"
[connection.mptcp]
connection.mptcp-flags=0x32 # enabled,signal,subflow
and MPTCP handling would still be disabled unless the sysctl
is enabled.
There is now also a new flag "also-without-sysctl", so if you want
to really enable MPTCP handling regardless of the sysctl, you can.
The point of that might be, that we still can configure endpoints,
even if kernel won't do anything with them. Then you could just flip
the sysctl, and it would start working (as NetworkManager configured
the endpoints already).
Fixes: eb083eece5 ('all: add NMMptcpFlags and connection.mptcp-flags property')
LTO without assertion enabled, thinks that certain code paths
result in uninitialized code. Technically, it's not wrong, in practice
those are only in cases where we already failed an assertion.
In function 'nm_ip_addr_is_null',
inlined from 'canonicalize_ip_binary' at src/libnm-core-impl/nm-setting-ip-config.c:67:21,
inlined from 'nm_ip_route_set_next_hop_binary' at src/libnm-core-impl/nm-setting-ip-config.c:1062:23:
./src/libnm-glib-aux/nm-inet-utils.h:80:12: error: 'a' may be used uninitialized [-Werror=maybe-uninitialized]
80 | return IN6_IS_ADDR_UNSPECIFIED(&a.addr6);
| ^
src/libnm-core-impl/nm-setting-ip-config.c: In function 'nm_ip_route_set_next_hop_binary':
./src/libnm-glib-aux/nm-inet-utils.h:73:14: note: 'a' declared here
73 | NMIPAddr a;
| ^
Try to workaround that by letting nm_utils_addr_family_to_size() always
return a non-zero size. This is ugly, because in the assertion case fail
we might now also get an additional memory corruption that could have
been avoided by returning zero. However, it probably doesn't matter, because
in this scenario we are already in a bad situation.
Fixes: b02aeaf2f3 ('glib-aux: fix various nm_ip_addr_*() functions for unaligned addresses')
