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gap: skip Legacy Connection Downgrade detection if SC not active

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This commit is contained in:
Matthias Ringwald 2020-10-16 16:07:54 +02:00
parent c214d65b12
commit edc1ac20b6
1 changed files with 1 additions and 1 deletions
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src/hci.c
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@ -2578,7 +2578,7 @@ static void event_handler(uint8_t *packet, uint16_t size){
// Detect Secure Connection -> Legacy Connection Downgrade Attack (BIAS)
bool sc_used_during_pairing = gap_secure_connection_for_link_key_type(conn->link_key_type) != 0;
bool connected_uses_aes_ccm = encryption_enabled == 2;
if (sc_used_during_pairing && !connected_uses_aes_ccm){
if (hci_stack->secure_connections_active && sc_used_during_pairing && !connected_uses_aes_ccm){
log_info("SC during pairing, but only E0 now -> abort");
conn->bonding_flags |= BONDING_DISCONNECT_SECURITY_BLOCK;
break;