This implements a configurator in the responder role. Currently
configuring an enrollee is limited to only the connected network.
This is to avoid the need to go offchannel for any reason. But
because of this a roam, channel switch, or disconnect will cause
the configuration to fail as none of the frames are being sent
offchannel.
Added both enrollee and configurator roles, as well as the needed
logic inside the authentication protocol to verify role compatibility.
The dpp_sm's role will now be used when setting capability bits making
the auth protocol agnostic to enrollees or configurators.
This also allows the card to re-issue ROC if it ends in the middle of
authenticating or configuring as well as add a maximum timeout for
auth/config protocols.
IO errors were also handled as these sometimes can happen with
certain drivers but are not fatal.
Rather than hard coding ad0, use the actual frame data. There really
isn't a reason this would differ (only status attribute) but just
in case its better to use the frame data directly.
This is a minimal implementation only supporting legacy network
configuration, i.e. only SSID and PSK/passphrase are supported.
Missing features include:
- Fragmentation/comeback delay support
- DPP AKM support
- 8021x/PKEX support
This implements the DPP protocol used to authenticate to a
DPP configurator.
Note this is not a full implementation of the protocol and
there are a few missing features which will be added as
needed:
- Mutual authentication (needed for BLE bootstrapping)
- Configurator support
- Initiator role
The presence procedure implemented is a far cry from what the spec
actually wants. There are two reason for this: a) the kernels offchannel
support is not at a level where it will work without rather annoying
work arounds, and b) doing the procedure outlined in the spec will
result in terrible discovery performance.
Because of this a simpler single channel announcement is done by default
and the full presence procedure is left out until/if it is needed.
James Prestwood