Refactoring the entire scan code, and this part seems to not be
supported by the target kernels. Revisit / redo this functionality once
things become a bit clearer.
In the D-bus .Connect call return an error immediately if we
find that there's no common cipher supported between iwd, the
network adapter and the AP. This is to avoid asking the agent
for the passkey if we know the connection will fail.
An alternative would be to only show networks that we can connect
to in the scan results on D-bus but I suspect that would cause
more pain to users debugging their wifi setups on average.
For now, if a passphrase is needed we check once before querying
for passphrase and recheck afterwards when we're about to
associate.
Instead of passing in the RSN/WPA elements, simply pass in the
configured cipher. This will make the implementation of the install_gtk
callback much simpler.
Step 4 is always sent without encrypted Key Data according to Section
11.6.6.5. In the case of WPA, Encrypted Key Data field is reserved, and
should always be 0. Thus it is safe to drop the !is_wpa condition.
When handling repeated 4-Way Handshakes from the AP there will be no
.Connect() call pending so we need to check that netdev->connect_pending
is non-NULL. It may be a good idea to check this even during initial
handshake.
When disconnect is triggered locally, we do not clean up properly.
==4336== at 0x4C2B970: malloc (vg_replace_malloc.c:296)
==4336== by 0x40CEED: l_malloc (util.c:62)
==4336== by 0x40F46A: l_settings_new (settings.c:82)
==4336== by 0x40CE2E: storage_network_open (storage.c:180)
==4336== by 0x40498E: network_connect_psk (wiphy.c:307)
==4336== by 0x40498E: network_connect (wiphy.c:359)
==4336== by 0x41D7EE: _dbus_object_tree_dispatch (dbus-service.c:845)
==4336== by 0x416A16: message_read_handler (dbus.c:297)
==4336== by 0x411984: io_callback (io.c:120)
==4336== by 0x410FC2: l_main_run (main.c:346)
==4336== by 0x40253E: main (main.c:171)
This happens when connecting / disconnecting successfully multiple
times.
==4336== 64 bytes in 2 blocks are definitely lost in loss record 9 of 11
==4336== at 0x4C2B970: malloc (vg_replace_malloc.c:296)
==4336== by 0x40CEED: l_malloc (util.c:62)
==4336== by 0x40D6D9: l_util_from_hexstring (util.c:493)
==4336== by 0x4049C6: network_connect_psk (wiphy.c:315)
==4336== by 0x4049C6: network_connect (wiphy.c:359)
==4336== by 0x41D7EE: _dbus_object_tree_dispatch (dbus-service.c:845)
==4336== by 0x416A16: message_read_handler (dbus.c:297)
==4336== by 0x411984: io_callback (io.c:120)
==4336== by 0x410FC2: l_main_run (main.c:346)
==4336== by 0x40253E: main (main.c:171)
Instead of storing the network pointer for each BSS, store it on the
netdev object. This saves space inside struct bss and makes longer term
refactoring simpler.
==4249== 231 (32 direct, 199 indirect) bytes in 1 blocks are definitely
lost in loss record 10 of 10
==4249== at 0x4C2B970: malloc (vg_replace_malloc.c:296)
==4249== by 0x40CF5D: l_malloc (util.c:62)
==4249== by 0x40F4DA: l_settings_new (settings.c:82)
==4249== by 0x40CE9E: storage_network_open (storage.c:180)
==4249== by 0x40499E: network_connect_psk (wiphy.c:307)
==4249== by 0x40499E: network_connect (wiphy.c:359)
==4249== by 0x41D85E: _dbus_object_tree_dispatch (dbus-service.c:845)
==4249== by 0x416A86: message_read_handler (dbus.c:297)
==4249== by 0x4119F4: io_callback (io.c:120)
==4249== by 0x411032: l_main_run (main.c:346)
==4249== by 0x40253E: main (main.c:171)
This patch saves off the PSK generated based on the passphrase provided
by the agent/user. The PSK is saved only if the connection is
successful.
Subsequent connection attempts to the known AP use the PSK saved on the
filesystem (default /var/lib/iwd/<ssid>.psk). If the connection fails,
the agent will again be asked for the passphrase on the next attempt.
