Add 3 HCI Commands + 1 HCI MetaEvent to support SMP SC on slave peripheral site, incl. mapping to Mgmt event object

Situation: Linux Kernel 5.10.0-9-amd64, Debian 12

dbt_scanner10: Master, initiatior (DUAL)
dbt_peripheral00: Slave, peripheral (LE only)

LE Secure Connections enabled per default.

Issue: LTK via Mgmt event in ~50% of cases not send!
However, full information already passed via HCI commands/events.

Workaround: Listen to HCI commands as well and allow
related commands + events to complement SC status tracking.

+++

New HCI commands + events, incl. their Mgmt event mapping:

- HCIOpcode::LE_ENABLE_ENC -> HCILEEnableEncryptionCmd
  - Mgmt HCI_LE_ENABLE_ENC -> MgmtEvtHCILEEnableEncryptionCmd

- HCIOpcode::LE_LTK_REPLY_ACK -> HCILELTKReplyAckCmd
  - Mgmt HCI_LE_LTK_REPLY_ACK -> MgmtEvtHCILELTKReplyAckCmd

- HCIOpcode::LE_LTK_REPLY_REJ -> HCILELTKReplyRejCmd
  - Mgmt HCI_LE_LTK_REPLY_REJ -> MgmtEvtHCILELTKReplyRejCmd

- HCIMetaEventType::LE_LTK_REQUEST -> HCILELTKReqEvent
  - Mgmt: Opcode::HCI_LE_LTK_REQUEST -> MgmtEvtHCILELTKReq

- HCICommand::getSpecialized(..)

1 files changed, 1 insertions, 0 deletions

diff --git a/api/direct_bt/HCIHandler.hpp b/api/direct_bt/HCIHandler.hpp
index 75f89ad5..e1a23eed 100644
--- a/api/direct_bt/HCIHandler.hpp
+++ b/api/direct_bt/HCIHandler.hpp
@@ -330,6 +330,7 @@ namespace direct_bt {
             HCISMPMsgCallbackList hciSMPMsgCallbackList;
 
             std::unique_ptr<MgmtEvent> translate(HCIEvent& ev) noexcept;
+            std::unique_ptr<MgmtEvent> translate(HCICommand& ev) noexcept;
 
             std::unique_ptr<const SMPPDUMsg> getSMPPDUMsg(const HCIACLData::l2cap_frame & l2cap, const uint8_t * l2cap_data) const noexcept;
             void hciReaderThreadImpl() noexcept;