When parsing the EAPoL-Key key data field we don't strip the 0xdd /
0x00 padding from the decrypted data so there may be trailing padding
after the IE sequence and valgrind will report an invalid read of the
length byte. Same thing may happen if we're sent garbage.
When we send M5 & M7, we need to generate a random IV. For testing
purposes, the IV can be provided in settings, otherwise it will be
generated randomly.
We need quite a bit of attributes of M2 for the duration of the WSC
handshake. Most importantly, we need to use the peer's public key when
processing M4 and M6. RegistrarNonce is also needed for generating any
ACK/NACK messages as needed.
Also, peer's device attributes such as Model, Manufacturer, etc might be
useful to report upon successful handshake.
AuthKey is already uploaded into auth_key_hmac. KeyWrapKey is now
uploaded into the AES-CBC(128) cipher. We currently have no use for
EMSK.
So we no longer need to keep the wsc_session_key structure around.
Encrypted Settings TLVs are structured similarly to the various WSC
messages. However, they lack a version2 extension field and use a Key
Wrap Authenticator element instead of Authenticator.
DevicePassword is the PIN, either static, dynamically generated or
entered by the user. For PushButton mode, DevicePassword is set to
'00000000'. It can also be provided via external means, such as NFC.
This patch allows DevicePassword to be externally configured into the
EAP-WSC layer. Optionally, the secret nonce values can also be
provided for testing purposes. If omitted, they will be generated using
l_getrandom.
We use the load_settings method to bootstrap the internal state of the
EAP WSC state machine. We require certain information to be provided by
the higher layers, namely:
Global Device parameters
- Manufacturer
- Model Name
- Model Number
- Serial Number
- Device Name
- Primary Device Type
- OS Version
Session specific parameters
- MAC Address
- Configuration Methods
- RF Bands
The following parameters are auto-generated for each new session, but
can be over-ridden if desired
- Private Key
- Enrollee Nonce
Expanded EAP methods should get their packets for handling starting at
the op-code field. They're not really interested in
type/vendor-id/vendor-type fields.
Instead of one global protocol_version, we now store it inside eapol_sm.
This allows us to use the same protocol version for our response as the
request from the authenticator.
For unit tests where we had protocol version mismatches, a new method is
introduced to explicitly set the protocol version to use.
CMD_DISCONNECT fails on some occasions when CMD_CONNECT is still
running. When this happens the DBus disconnect command receives an
error reply but iwd's device state is left as disconnected even though
there's a connection at the kernel level which times out a few seconds
later. If the CMD_CONNECT is cancelled I couldn't reproduce this so far.
src/network.c:network_connect()
src/network.c:network_connect_psk()
src/network.c:network_connect_psk() psk:
69ae3f8b2f84a438cf6a44275913182dd2714510ccb8cbdf8da9dc8b61718560
src/network.c:network_connect_psk() len: 32
src/network.c:network_connect_psk() ask_psk: false
src/device.c:device_enter_state() Old State: disconnected, new state:
connecting
src/scan.c:scan_notify() Scan notification 33
src/device.c:device_netdev_event() Associating
src/netdev.c:netdev_mlme_notify() MLME notification 60
MLME notification is missing ifindex attribute
src/device.c:device_dbus_disconnect()
src/device.c:device_connect_cb() 6, result: 5
src/device.c:device_enter_state() Old State: connecting, new state:
disconnecting
src/device.c:device_disconnect_cb() 6, success: 0
src/device.c:device_enter_state() Old State: disconnecting, new state:
disconnected
src/scan.c:scan_notify() Scan notification 34
src/netdev.c:netdev_mlme_notify() MLME notification 19
src/netdev.c:netdev_mlme_notify() MLME notification 60
MLME notification is missing ifindex attribute
src/netdev.c:netdev_mlme_notify() MLME notification 37
src/netdev.c:netdev_authenticate_event()
src/scan.c:get_scan_callback() get_scan_callback
src/scan.c:get_scan_done() get_scan_done
src/netdev.c:netdev_mlme_notify() MLME notification 60
MLME notification is missing ifindex attribute
src/netdev.c:netdev_mlme_notify() MLME notification 19
MLME notification is missing ifindex attribute
src/netdev.c:netdev_mlme_notify() MLME notification 38
src/netdev.c:netdev_associate_event()
src/netdev.c:netdev_mlme_notify() MLME notification 46
src/netdev.c:netdev_connect_event()
<delay>
src/netdev.c:netdev_mlme_notify() MLME notification 60
MLME notification is missing ifindex attribute
src/netdev.c:netdev_mlme_notify() MLME notification 20
MLME notification is missing ifindex attribute
src/netdev.c:netdev_mlme_notify() MLME notification 20
src/netdev.c:netdev_mlme_notify() MLME notification 39
src/netdev.c:netdev_deauthenticate_event()
This is to make sure device_remove and netdev_connect_free are called
early so we don't continue setting up a connection and don't let DBus
clients power device back up after we've called netdev_set_powered.
Calling device_disassociated inside disconnect_cb was mostly pointless.
Most attributes were already cleared by device_disconnect() when
initiating the disconnection procedure.
This patch also modifies the logic for triggering the autoconnect. If
the user initiated the disconnect call, then autoconnect should not be
triggered. If the disconnect was triggered by other means, then iwd
will still enter autoconnect mode.
Andrew Zaborowski