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There's a standard %_unitdir macro for this purpose, shipped with
systemd-rpm-macros .
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It's not used anywhere.
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https://bugzilla.redhat.com/show_bug.cgi?id=2028751
Fixes: db0d84f13a (“l3cfg: fix handling "instance-reset" ACD event”)
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https://bugzilla.redhat.com/show_bug.cgi?id=1937823
https://bugzilla.redhat.com/show_bug.cgi?id=2013587
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1083
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IPv4:
routes
A list of IPv4 destination addresses, prefix length, optional IPv4
next hop addresses, optional route metric, optional attribute. The
valid syntax is: "ip[/prefix] [next-hop] [metric]
[attribute=val]...[,ip[/prefix]...]". For example "192.0.2.0/24
10.1.1.1 77, 198.51.100.0/24".
Various attributes are supported:
• "cwnd" - an unsigned 32 bit integer.
• "initcwnd" - an unsigned 32 bit integer.
• "initrwnd" - an unsigned 32 bit integer.
• "lock-cwnd" - a boolean value.
• "lock-initcwnd" - a boolean value.
• "lock-initrwnd" - a boolean value.
• "lock-mtu" - a boolean value.
• "lock-window" - a boolean value.
• "mtu" - an unsigned 32 bit integer.
• "onlink" - a boolean value.
• "scope" - an unsigned 8 bit integer. IPv4 only.
• "src" - an IPv4 address.
• "table" - an unsigned 32 bit integer. The default depends on
ipv4.route-table.
• "tos" - an unsigned 8 bit integer. IPv4 only.
• "type" - one of unicast, local, blackhole, unavailable,
prohibit. The default is unicast.
• "window" - an unsigned 32 bit integer.
For details see also `man ip-route`.
Format: a comma separated list of routes
IPv6:
routes
A list of IPv6 destination addresses, prefix length, optional IPv6
next hop addresses, optional route metric, optional attribute. The
valid syntax is: "ip[/prefix] [next-hop] [metric]
[attribute=val]...[,ip[/prefix]...]".
Various attributes are supported:
• "cwnd" - an unsigned 32 bit integer.
• "from" - an IPv6 address with optional prefix. IPv6 only.
• "initcwnd" - an unsigned 32 bit integer.
• "initrwnd" - an unsigned 32 bit integer.
• "lock-cwnd" - a boolean value.
• "lock-initcwnd" - a boolean value.
• "lock-initrwnd" - a boolean value.
• "lock-mtu" - a boolean value.
• "lock-window" - a boolean value.
• "mtu" - an unsigned 32 bit integer.
• "onlink" - a boolean value.
• "src" - an IPv6 address.
• "table" - an unsigned 32 bit integer. The default depends on
ipv6.route-table.
• "type" - one of unicast, local, blackhole, unavailable,
prohibit. The default is unicast.
• "window" - an unsigned 32 bit integer.
For details see also `man ip-route`.
Format: a comma separated list of routes
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I don't understand the code, but it mangles the XML.
There is no difference in the markup we have so far. But if you
have nested XML (like for description-docbook tag) there are cases
where this is wrong.
There is also no need to prettify anything. If you want pretty-formatted
XML, do it yourself, for example with
$ tidy --indent yes --indent-spaces 4 --indent-attributes yes --wrap-attributes yes --input-xml yes --output-xml yes src/libnm-client-impl/nm-property-infos-nmcli.xml
I think this was initially done, because we had the tool in perl, and
when migrating, we wanted to generate the exactly same output. And it
was the same output, and it was fine for the input we have. But with
different input, it's wrong. Drop it now.
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Yes, they get cached by the library already. Still, no need for
doing this repeatedly.
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Certain route types (blackhole, unreachable, prohibit) are not tied to
an interface. They are thus global and we need to track them system wide
(or better: per network namespace). That is done by NMPRouteManager.
For the routing rules, it's NMDevice itself to track/untrack the rules.
That is done for historical reasons, at the time, NML3Cfg did not exit.
Now with NML3Cfg, it seems that also NML3Cfg should be the part that
handles nodev routes. One reason is that we want to move IP
functionality out of NMDevice. So callers (NMDevice) would just add
blackhole routes to the NML3ConfigData and let NML3Cfg handle them.
Still, to handle these routes is rather different from regular routes.
Normally, NML3Cfg tracks an object state (ObjStateData) for each address/route,
and it hooks into platform signals to update the os_plobj field. Those signals
are dispatched by NMNetns and are only per-ifindex. Hence, NML3Cfg
wouldn't be notified about those nodev routes. Consequently, there
os_plobj could not be (efficiently) maintained and there is no
ObjStateData for such routes.
Instead, all that NML3Cfg does is have the routes in the NML3ConfigData and
tell NMPRouteManager about them. Seems simple enough. The only question
is when should NMPRouteManager sync? For now, we sync when the
track/untracking brings any changes and during reapply. Which is
probably fine.
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Specifically, in nm_utils_ip_route_attribute_to_platform() and in
_l3_config_data_add_obj() handle such new route type. For the moment,
they cannot be stored in a valid NMSettingIPConfig, but later this will
be necessary.
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This will be required next, when we will have also routes without a
device. Split the generation of the route list out.
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The general idea is that when we have entries tracked by the
route-manager, that we can mark them all as dirty. Then, calling the
"track" function will reset the dirty flag. Finally, there is a method
to delete all dirty entries.
As we can lookup an entry with O(1) (using dictionaries), we can
sync the list of tracked objects with O(n). We just need to track
all the ones we care about, and then delete those that were not touched
(that is, are still dirty).
Previously, we had to explicitly mark all entries as dirty. We can do
better. Just let nmp_route_manager_untrack_all() mark the survivors as
dirty right away. This way, we can save iterating the list once.
It also makes sense because the only purpose of the dirty flag is to
aid this prune mechanism with track/untrack-all. So, untrack-all can
just help out, and leave the remaining entries dirty, so that the next
track does the right thing.
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It's just more convenient.
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We now track up to three kinds of object types in NMPRouteManager.
There is only one place, where we need to iterate over all objects of
the same type (e.g. all ipv4-routes), and that is nmp_route_manager_sync().
Previously, we only had one GHashTable with all the object, and when
iterating we had to skip over them after checking the type. That has some
overhead, but OK.
The ugliness with iterating over a GHashTable is that the order is non
deterministic. We should have a defined order in which things happen. To
achieve that, track three different CList, one for each object type.
Also, I expect that to be slightly faster, as you only have to iterate
over the list you care about.
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No need for a dedicated implementation just to compare two
indirect pointers.
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NM_HASH_OBFUSCATE_PTR() is some snake-oil to not log raw pointer values.
It obviously makes debugging harder.
But we don't need to generate differently obfuscated pointer values.
At least, let most users use the same obfuscation, so that the values
are comparable.
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We will not only track (routing) rules, but also routes. Rename.
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Let's just always allocate the hash tables. We will likely need them,
and three hash tables are relatively cheap.
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Routes of type blackhole, unreachable, prohibit don't have an
ifindex/device. They are thus in many ways similar to routing rules,
as they are global. We need a mediator to keep track which routes
to configure.
This will be very similar to what NMPRulesManager already does for
routing rules. Rename the API, so that it also can be used for routes.
Renaming the file will be done next, so that git's rename detection
doesn't get too confused.
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So far, certain NMObject types could not have an ifindex of zero. Hence,
nmp_lookup_init_object() took such an ifindex to mean lookup all objects
of that type.
Soon, we will support blackhole/unreachable/prohibit route types, which
have their ifindex set to zero. It is still useful to lookup those routes
types via nmp_lookup_init_object().
Change behaviour how to interpret the ifindex. Note that this also
affects various callers of nmp_lookup_init_object(). If somebody was
relying on the previous behavior, it would need fixing.
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_vt_cmd_obj_is_alive_ipx_route() is called by nmp_object_is_alive().
Non-alive objects are not put into the cache.
That certainly makes sense for RTM_F_CLONED routes, because they are
generated ad-hoc during the `ip route get` request.
Checking for the ifindex is not necessary. For one, some route types
(blackhole, unreachable, prohibit) don't have an ifindex. Also, the
purpose of _vt_cmd_obj_is_alive_ipx_route() is not to validate the
object. Just don't create objects without an ifindex, if you think the
route needs an ifindex. Checking here is not useful.
We also don't check that other fields like rt_source are valid, so there
is no need to do it for the ifindex either.
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Currently, for NMPlatformIP[46]Route always has a gateway, even if it's
possibly set to 0.0.0.0/::. Not sure whether kernel has a further
distinction between no-gateway and all-zero gateway.
Anyway. For us, a gateway of 0.0.0.0/:: means the same as having no
gateway. We cannot differentiate the two (nor do we need to).
Don't print that in nm_platform_ip[46]_route_to_string().
Also, because we are going to add blackhole route types, which cannot
have a next-hop. But we do this change for all routes types, because
it makes sense in general (and also what `ip route show` prints).
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It's what we do at many other places. Consistency.
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The variable with this purpose is usually called "IS_IPv4".
It's upper case, because usually this is a const variable, and because
it reminds of the NM_IS_IPv4(addr_family) macro. That letter case
is unusual, but it makes sense to me for the special purpose that this
variable has.
Anyway. The naming of this variable is a different point. Let's
use the variable name that is consistent and widely used.
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_nm_ip_route_attribute_validate_all() validates all attributes together.
As such, it calls to nm_ip_route_attribute_validate(), which in turn
validates one attribute at a time.
Such full validation needs to check that (potentially conflicting)
attributes are valid together. Hence, _nm_ip_route_attribute_validate_all()
needs again peek into the attributes.
Refactor the code, so that we can extract the pieces that we need and
not need to parse them twice.
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First of all, all of NMVariantAttributeSpec is internal API. We only
expose the typedef itself as public API, but not its fields nor
their meaning. So we can change things.
Change "str_type" to "type_detail", so that it can work for any kind of
attribute, not only for strings. Usually, we want to avoid special
cases and treat all attributes the same, based on their GVariant type.
But sometimes, it is necessary to do something special with an
attribute. This is what the "type_detail" encodes, but it's not only
relevant for strings.
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Usually the normalization (canonicalize) and validation of the IP
address string both requires to parse the string. As we always do
validation first, we can use the parsed address and don't need to parse
it a second time.
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Order the fields by their size, to minimize the alignment gaps.
I guess, that doesn't matter because the alignment of the heap
allocation is larger than what we can safe here. Still, there is
on reason to do it any other way.
Also, it's not possible via API to set family/prefix to values outside
their range, so an 8bit integer is always sufficient. And we don't want
that invariant to change. We don't ever want to allow the caller to set
values that are clearly invalid, and will assert against that early (g_return()).
Point is, we can do this and there is no danger of future problems.
And even if we will support larger values, it's all an implementation
detail anyway.
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`git bisect run` is peculiar about the exit code:
error: bisect run failed: exit code 134 from '...' is < 0 or >= 128
If we just "exec" the test, it usually will fail on an assert. That results
in SIGABRT or exit code 134. So out of the box that is annoying with
git-bisect.
Work around that and let the test wrapper always coerce any test failure
to exit code 1.
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https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1091
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In systemd, it's common that a D-Bus activatable service references
`SystemdService=dbus-$BUSNAME.service` instead the real service name.
Together with an `[Install].Alias=dbus-$BUSNAME.service` directive,
this allowed to enable/disable D-Bus activation without uninstalling the
service altogether ([1]).
Currently, when we install the RPM then `nm-priv-helper.service` is not
enabled, consequently the alias is not created, and D-Bus activation
does not work. I guess, we should fix that by enabling the service in
the %post section or via a systemd preset? Dunno.
Anyway. It seems that nm-priv-helper.service is more of an
implementation detail of NetworkManager. It makes not sense for the user
to interact directly, or to enable/disable D-Bus activation (because
that is how it works).
So, drop the alias.
See-also: [1] https://docs.fedoraproject.org/en-US/packaging-guidelines/Systemd/#activation_dbus
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"-" is not allowed as D-Bus path and interface name, and discouraged as
bus name. This cause nm-priv-helper to crash, because GDBus asserts the
the object path is valid.
Replace the '-' with '_'. This way, it's consistent with
"nm_dispatcher".
Fixes: d68ab6b8f02a ('nm-sudo: rename to nm-priv-helper')
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Mark out_result as out argument. Fixes an issue when using libnm bindings.
Fixes: fbb038af5e5d ('all: return output dictionary from "AddAndActivate2"')
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1092
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https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1079
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The signal parameters are G_TYPE_UINT. We should not assume that our
enums are a compatible integer type.
In practice of course they always were. Let's just be clear about when
we have an integer and when we have an enum.
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GSList is almost always the wrong choice. We can just embed
the next pointers in the structure using the intrusive CList.
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- use slice allocator
- use designated initializers
- first determine all parameters in killswitch_new() before
setting ks.
- drop unnecessary memset().
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"str" comes from udev. This is not a trusted component, and we must not assert
for valid input.
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