Now that we have a PMF connection property, get rid of the previous
code to globally enable/disable PMF and use the 'ieee80211w'
configuration option for each configured network when the supplicant
supports it.
Before, the NEW_BSS signal was not careful to emit the signal only when the BSS
is seen for the first time. Consequently, supplicant_iface_new_bss_cb() checked
whether it already knows about the new BSS.
Merge NEW_BSS and BSS_UPDATED. Now we emit BSS_UPDATED when either the
BSS is new or changed.
Also, in supplicant_iface_new_bss_cb() (now supplicant_iface_bss_updated_cb())
no longer constructs an @ap instance if we have a @found_ap.
In some situations there can be a value of having a separate ADD signal.
But only when there the consumers care, and if the consumers can trust that
ADD is not just an UPDATE. The only consumer doesn't care and it not not be
trusted, so merge the signals.
Instead of having a NM_SUPPLICANT_INTERFACE_CONNECTION_ERROR signal to notify
about failures during AddNetwork/SelectNetwork, accept a callback to report
success/failure.
Thereby, rename nm_supplicant_interface_set_config() to
nm_supplicant_interface_assoc().
The async callback is guaranteed to:
- be invoked exactly once, signalling success or failure
- always being invoked asyncronously.
The pending request can be (synchronously) cancelled via
nm_supplicant_interface_disconnect() or by disposing the
interface instance. In those cases the callback will be invoked
too, with error code cancelled/disposing.
Also change the signature of the NM_SUPPLICANT_INTERFACE_STATE signal,
to have three "int" type arguments. Thereby also fix the subscribers
to this signal that wrongly had type guint32, instead of guint
(which happens to be the same underlying type, so no real problem).
https://mail.gnome.org/archives/networkmanager-list/2017-February/msg00021.html
As the fast-supported flag changes, update the existing supplicant
interfaces with the new information.
Also, by default assume it is supported.
(cherry picked from commit 872b9ec5ea)
