bt_mesh_proxy_role_setup() is called conditionally when peer is
connected and gatt_disconnected() is always called. This leads
to unbalance in role->conn reference count and crash.
Instead of hot-fixing this in gatt_disconnected(), this commit adds
proper bt_mesh_proxy_role_cleanup() API that is called by roles
implementations if cleanup is needed.
Signed-off-by: Szymon Janc <szymon.janc@codecoup.pl>
The Bluetooth proxy feature includes proxy client and proxy server.
In addition to the proxy pdu message used above, pb-gatt also uses
the same proxy pdu message.
Currently zephyr bluetooth mesh couples them in one file.
A file at the separation is called gatt_services.c,
which is used to contain Mesh Provisioning Service and
Mesh Proxy Service.
Another file in the separation is called proxy_msg.c,
which is used to process Proxy pdu messages.
Also according to Trond's suggestion:
Rename CONFIG_BT_MESH_PROXY to CONFIG_BT_MESH_GATT.
Create an additional promptless entry CONFIG_BT_MESH_GATT_SERVER
that selects CONFIG_BT_MESH_GATT and is selected by
CONFIG_BT_MESH_GATT_PROXY or CONFIG_BT_MESH_PB_GATT.
Create additional CONFIG_BT_MESH_PROXY used to represent
proxy feature (also include proxy client).
Signed-off-by: Lingao Meng <menglingao@xiaomi.com>
