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Add the Bluetooth agent API (for BlueZ) v3 #2107
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In case there's no known handler for a given (interface, path) pair, it's should not be considered an error. Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
The sol-gatt API has changed, so we must keep the none implementation up to date so it at least compiles. Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
The agent will be used when request user input, necessary mostly when pairing. The API is heavily based on the Zephyr's API, which maps nicely to the BlueZ D-Bus API. Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
The agent will allow to user input to be handled so pairing procedures and the user can properly authorize and provide input. In Bluetooth, depending on the input/output capabilities of the device the pairing may use different procedures with different security characteristics, the choice of the input/output capabilities with the agent API depend on which of the agent callbacks are implemented. Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
This sample tries pairing with the device (if provided) implementing only the pairing_confirm() callback, which means that the capabilties would be equivalent to a device which implements the "DisplayYesNo" capability. Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
This allows the connection in which a GATT operation is happening to be retrieved by the pending handle. This may be useful when the value of characteristic is different depending on the device accessing it, for example. Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
When receiving a pairing attempt, it's possible that there aren't any 'sol_bt_conn' objects associated yet, in that case, the connection object must be created. Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Since commit "93b64d9ca8a2bb6 doc/gatt-api: Add options dictionary to ReadValue/WriteValue" BlueZ passes a dictionary to its ReadValue()/WriteValue() operations, informing the device which is making the operation and the offset of the operation. Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
In D-Bus, there isn't the concept of dictionaries, only dictionary entries and arrays, and using them is pretty common, so it makes sense to provide a helper to parse dictionaries. Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Now that sol_bus_parse_dict() is available, we can make use of it. Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
There was a problem that some cases of GATT pending callback were being kept around for more time than was necessary. For that to work it was also needed to pay more attention to the lifetime of the buffer passed to sol_gatt_pending_reply(). Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
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This adds the concept of an agent, that will serve to receive input from the user during the pairing process primarily.
The API is pretty similar to what Zephyr provides, which is based on the BlueZ D-Bus API, so this should map pretty well to both. When reviewing, please see if the approach of the
sol_bt_agent_reply_*family of functions is easy to understand.Changes from v2 (#2074):
Changes from v1: