added explaination why src_id is not needed

added non-commerical clause and contact email

deliver DAEMON_EVENT_HCI_PACKET_SENT as HCI_EVENT_PACKET to security_protocol_packet_handler (not supported yet anyway)

added support for sending connectionless L2CAP packets

added support for Attribute and Security Manager LE protocols in L2CAP

add casts for btstack_memory gets, use getter/setter for enumerated flags to allow compilation with C++

use L2CAP_SERVICE_ALREADY_REGISTERED

avoid l2cap-channel list corruption (detected by alan-thx)

emit L2CAP_EVENT_SERVICE_REGISTERED event

fix no newline at end of file

link page scan enable to registered l2cap services

disconnect all connections on hci_close, reset state on init

db_mem_devices and db_mem_services initilized with NULL

less buffers for pending l2cap requests

explicity use memcpy instead of relying on compiler to use intrinsic function

make l2cap_max_mtu public

renamed l2cap_max_l2cap_mtu into mtul2cap_max_mtu

use hci acl packet buffer instead of own

streamline buffer size definitions throughtout the stack, use single HCI_PACKET_BUFFER_SIZE

use single buffer for outgoing l2cap packets

use correct size for max l2cap packet used in rfcomm

use correct size for l2cap data and signaling packets

replaced HCI_ACL_3DH5_SIZE with HCI_ACL_BUFFER_SIZE, add packet_types to hci_stack, set packet_types based on HCI_ACL_BUFFER_SIZE and Bluetooth module ACL buffer size, specify usable packet_types whe

replaced HCI_ACL_3DH5_SIZE with HCI_ACL_BUFFER_SIZE, add packet_types to hci_stack, set packet_types based on HCI_ACL_BUFFER_SIZE and Bluetooth module ACL buffer size, specify usable packet_types when creating connections

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change comments

at least call log_error if l2cap_register_service_internal fails due to malloc