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Correct the spelling across the *entire* tree, including translations,
comments, etc. It's easier that way.
Even the places where it's not exposed to the user, such as tests, so
that we learn how is it spelled correctly.
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Watch for connection-removed events and delete corresponding IWD network
configs if found. This mainly changes anything for 802.1X networks
where the deleted NM connections might annoyingly re-appear after a
restart. For PSK networks though it'll make IWD forget the password
which, until now, would be remembered by IWD even if it was removed or
changed in the NM profile, which is a bug.
This is still fragile because we don't handle "connection-updated"
events so the data->mirror_connection pointer for a known network record
may after some time point to an NMSettingsConnection with a different
SSID or security type and there are corner cases where the IWD-side
profile will not be forgotten. At least I'm trying to make sure we
don't crash and don't wrongly remove any IWD profile which could also be
annoying for complicated EAP configs.
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Something is possibly wrong with the DBus signal handling if a newly
added KnownNetwork interface already has an entry in
priv->known_networks, but since we handle this case add a warning and
update the GDBusProxy pointer for that existing entry.
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interface_added expects mirror_8021x_connection() to return the pointer to
the existing connection if one exists, and NULL on error, rather than
NULL if a conneciton exists. While touching that, add logic to return
specifically a connection with EAP method set to 'external' if one
exists even though this should not affect any other logic we have
currently.
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When creating the mirror 802.1x connections for IWD 802.1x profiles
set the NM_SETTING_SECRET_FLAG_NOT_SAVED flag on the secrets that
may at some point be requested from our agent. The saved secrets could
not be used anyway because of our use of
NM_SECRET_AGENT_GET_SECRETS_FLAG_REQUEST_NEW in
nm_device_iwd_agent_query. But also try to respect whatever secret
caching policy has been configured in the IWD profile for those secrets,
IWD would be responsible for storing them if it was allowed in the
profile.
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In two places stop using g_dbus_proxy_new_* to create whole new
interface proxy objects for net.connman.iwd.Network as this will
normally have a huge overhead compared to asking the ObjectManager
client that we already have in NMIwdManager for those proxies.
dbus-monitor shows that for each network path returned by
GetOrderedNetworks () -- and we call it every 10 or 20 seconds and may
get many dozens of networks back -- gdbus would do the following each
time:
org.freedesktop.DBus.AddMatch("member=PropertiesChanged")
org.freedesktop.DBus.StartServiceByName("net.connman.iwd")
org.freedesktop.DBus.GetNameOwner("net.connman.iwd")
org.freedesktop.DBus.Properties.GetAll("net.connman.iwd.Network")
org.freedesktop.DBus.RemoveMatch("member=PropertiesChanged")
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Make sure we free our IWD agent objects whenever we're freeing the
IWD Object Manager. We're registering those objects on the same DBus
connection as the Object Manager so that they're visible to IWD, and
our only reference to that connection is through priv->object_manager
so even though the connection isn't changing when we free the object
manager and create a new one, we still need to free the agent object.
We could maybe keep a reference to the connection, but I'm not sure
there's any warranty that it doesn't get closed. We could also use
nm_dbus_manager_get_connection (nm_dbus_manager_get ()) and only
register and free the agent once, since it happens to be the same
connection but it'd perhaps be a hack to rely on this.
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- since commit d17d26887c69c8c3adcd6003a7ceea16b4eecd14, a
NMSettingsConnection no longer "is-a" NMConnection. Instead,
we must call nm_settings_connection_get_connection() to obtain
the NMConnection instance. Adjust this in mirror_8021x_connection()
- don't leak "ssid" in mirror_8021x_connection()
- move deletion of the mirror-connection to known_network_data_free().
Previously, we must have made sure that every g_hash_table_remove()
and g_hash_table_insert()(!!) first deletes the mirror connection.
Likewise, in got_object_manager() when we call g_hash_table_remove_all(),
delete created mirror connections.
- rework interface_added() to make it robust against calling
interface_added() more than once without removing the interface
in between. Essentially, this just means that we first look into
"priv->known_networks" to see whether the @id is already tracked.
And if so, delete an existing mirror-connection as necessary.
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- prefer "gsize" instead of "size_t".
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We shall use nm_hash_*() functions everywhere where
we need a hash for a dictionary.
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wrongly destroyed
Calling g_hash_table_insert() with a key which is already hashed
will destroy the *new* key. Since @id is used below, that would
be use after free.
Fixes: d635caf940551f8f5b52683b8379a1f81c58f8fc
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IWD's mechanism for connecting to EAP networks requires a network config
file to be present in IWD's storage. NM and its clients however won't
allow a connection to be attempted until a valid NMConnection is created
on the NM side for the network. To avoid duplicating the settings from
the IWD-side profiles in NM, automatically create NMSettingConnections
for EAP networks preconfigured on the IWD side, unless a matching
connection already exists. These connections will use the "external"
EAP method to mean their EAP settings can't be modified through NM, also
they won't be valid for devices configured to use the wpa_supplicant
backend unfortunately.
Those nm-generated connections can be modified by NM users (makes sense
for settings not related to the wifi authentication) in which case they
get saved as normal profiles and will not be recreated as nm-generated
connections on the next run.
I want to additionally handle deleting connections from NM clients so
that they're also forgotten by IWD, in a later patch.
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The known networks hash table is indexed by the (ssid, security) tuple
for fast lookups both on DBus signals related to an IWD known network
and local NMConnection signals such as on removal.
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There's no need anymore for NMIwdManager to know when a network has been
connected to, InterfaceAdded signals are now emitted when a network is
saved as a Known Network.
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Before 0.5 IWD has changed the known networks API to expose separate
objects for each known network and dropped the KnownNetworks
manager-like interface so stop using that interface. Following
patches will add tracking of the known networks through
ObjectManager.
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Instead of passing the return values to g_variant_get_string or
g_variant_boolean and then checking the return value of that call,
add wrappers that first check's whether the variant is non-NULL
and of the right type.
g_variant_get_string doesn't allow a NULL parameter and will also never
return NULL according to the docs.
For the State property we assume a state "unknown" and emit a warning
if the property can't be read, "unknown" is also a string in IWD itself
which would be returned if something went really wrong. In any case
this shouldn't happen.
[thaller@redhat.com: fix missing initialization of nm_auto() variable
interfaces.]
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iwd does not ship activation configuration yet; until then we simply
fail the way we already do.
https://bugzilla.gnome.org/show_bug.cgi?id=796805
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We commonly don't use the glib typedefs for char/short/int/long,
but their C types directly.
$ git grep '\<g\(char\|short\|int\|long\|float\|double\)\>' | wc -l
587
$ git grep '\<\(char\|short\|int\|long\|float\|double\)\>' | wc -l
21114
One could argue that using the glib typedefs is preferable in
public API (of our glib based libnm library) or where it clearly
is related to glib, like during
g_object_set (obj, PROPERTY, (gint) value, NULL);
However, that argument does not seem strong, because in practice we don't
follow that argument today, and seldomly use the glib typedefs.
Also, the style guide for this would be hard to formalize, because
"using them where clearly related to a glib" is a very loose suggestion.
Also note that glib typedefs will always just be typedefs of the
underlying C types. There is no danger of glib changing the meaning
of these typedefs (because that would be a major API break of glib).
A simple style guide is instead: don't use these typedefs.
No manual actions, I only ran the bash script:
FILES=($(git ls-files '*.[hc]'))
sed -i \
-e 's/\<g\(char\|short\|int\|long\|float\|double\)\>\( [^ ]\)/\1\2/g' \
-e 's/\<g\(char\|short\|int\|long\|float\|double\)\> /\1 /g' \
-e 's/\<g\(char\|short\|int\|long\|float\|double\)\>/\1/g' \
"${FILES[@]}"
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<error> level is for something really bad happening. When another party
(iwd in this case) sends a D-Bus request that we cannot meaningfully handle,
that is hardly reason to warn about. <debug> level is enough in this case.
Also, give all messages a common prefix "agent-request" so that we have
something to grep for.
(cherry picked from commit aef5110fa60ab4c6ceb14b91a2e5ca04f529219f)
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(cherry picked from commit 412a1fb46d4257f49b07b6aed262904506777d1e)
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nm_utils_random_bytes() will always try its best to give some
random numbers. A failure only means, that the kernel interfaces
get_random() or /dev/urandom failed to provide good randomness. We
don't really need good random numbers here, so no need to handle
a failure.
(cherry picked from commit 44cd60e82077a8f90511b8534ee12cf3ff182ff9)
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The IWD DBus interface currently
(https://git.kernel.org/pub/scm/network/wireless/iwd.git/tree/doc/agent-api.txt?id=38952813dddd776f66d2ed5e88eca9a892964c06)
knows about 3 secret types related to 802.1x authentication in addition
to the PSK secret request. Add support for the new methods and the new
secret types in NM's implementation of the IWD secret agent. Note that
the secret types are mapped to NMSetting8021x property keys and they are
then sent to the NM Secret Agent in the hints parameter to GetSecrets,
this will need support in the NM clients as the exact usage of the
hints parameter is specified a little ambiguously, but this seems to be
one of the permitted usages.
Rework the IWD agent interface info initialization to use NM convenience
macros.
(cherry picked from commit 74d9e04a66dce87cddee6476cdbd244e83ae6379)
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Normalize coding style by removing consecutive empty lines from C
sources and headers.
https://github.com/NetworkManager/NetworkManager/pull/108
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Similar cases of such a field are named "manager". Also,
internal names shall not have an "nm" prefix, contrary
to names in a header file, which shall have such a prefix.
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I find it slightly nicer and explict. Also, the list elements
are strictly speaking private, we should better not explicitly
use them outside of NMManager/NMDevice. The macro hides this.
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Instead of using a GSList for tracking the devices, use a CList.
I think a CList is in most cases the more suitable data structure
then GSList:
- you can find out in O(1) whether the object is linked. That
is nice, for example to assert in NMDevice's destructor that
the object was unlinked, and we will use that later in
nm_manager_get_device_by_path().
- you can unlink the element in O(1) and you can unlink the
element without having access to the link's head
- Contrary to GSList, this does not require an extra slice
allocation for the link node. It quite possibliy consumes
slightly less memory because the CList structure is embedded
in a struct that we already allocate. Even if slice allocation
would be perfect to only consume 2*sizeof(gpointer) for the link
note, it would at most be as-good as CList. Quite possibly,
there is an overhead though.
- CList possibly has better memory locality, because the link
structure and the data are close to each other.
Something which could be seen as disavantage, is that with CList
one device can only be tracked in one NMManager instance at a time.
But that is fine. There exists only one NMManager instance for now,
and even if we would ever introduce multiple managers, we probably
would not associate one NMDevice instance with multiple managers.
The advantages are arguably not huge, but CList is IMHO clearly the
more suited data structure. No need to stick to a suboptimal data
structure for the job. Refactor it.
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This bug was not causing a crash for me because of the !IS_NM_DEVICE_IWD
check and because my glib version probably had the assertion within
NM_IWD_MANAGER_GET_PRIVATE disabled.
While there, change the g_signal_connect line to use the macro for the
signal name.
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Remove the code (mostly copied from nm-device-wifi.c) that handles
checking if the secrets were provided and requesting missing secrets
before starting a connection attempt. Instead, request secrets when
we're asked for them by IWD through its agent interface. This happens
while the dbus Connect call is running. We change the NMDevice from
the CONFIG state to NEED_AUTH and then change back to CONFIG once we
sent the secrets back to IWD.
The current code would require the secrets only based on whether a
network is a KnownNetwork but IWD may need a new passwords even for
KnownNetworks if the last connection attempt has failed.
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Theoretically, dispose() could be called multiple times.
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Avoid calling nm_device_iwd_set_dbus_object (device, NULL) if the
dbus_object was NULL already. Apparently gdbus guarantees that a
name-owner notification either has a NULL old owner or a NULL new owner
but can also have both old and new owner NULL.
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Reuse the apparent workaround from libnm/nm-client.c in which the
GDbusObjectManagerClient is recreated every time the name owner
pops up, instead of creating it once and using that object forever.
Resubscribe to all the signals on the new object. The initial
GDbusObjectManager we create is only used to listed for the name-owner
changes.
There's nothing in gdbus docs that justifies doing that but there
doesn't seem to be any way to reliably receive all the signals from
the dbus service the normal way. The signals do appear on dbus-monitor
and the gdbus apparently subscribes to those signals with AddMatch()
correctly but they sometimes won't be received by the client code,
unless this workaround is applied.
While making changes to got_object_manager, don't destroy the
cancellable there as it is supposed to be used throughout the
NMIwdManager life.
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Disconnect from NMManager signals in our cleanup, make sure the
NMManager singleton is not destroyed before we are by keeping a
reference until we've disconnected from its signals.
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Keep a list of IWD's Known Networks which are networks that have their
configurations stored by IWD including the secrets, either because they
have been connected to before or because they were preprovisioned on the
machine.
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Add the PSK agent support to support PSK networks. Note that the PSK
itself will be saved by IWD on the first successful connection to the
network and will not be updated when it is changed by the user on the NM
side, this still needs fixing like a bunch of other problems.
[bgalvani@redhat.com: fix checking return value of nm_utils_random_bytes()]
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Add the NMIwdManager singleton to be responsible for matching
NMDeviceIwd objects created from platform devices, to IWD Device dbus
objects when they appear/disappear.
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