Bluetooth: host: Fix SMP local keys check when starting encryption
Fix SMP check of existing local keys when attempting to start security
with required security mode 1 level 4. The logic for checking the
conditions was wrong, leading to a situation where encryption would be
attempted to be started by the central instead of initiating a new
pairing procedure. This would fail when the connection was encrypted and
the connection would be disconnected.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
diff --git a/subsys/bluetooth/host/smp.c b/subsys/bluetooth/host/smp.c
index 5132ad7..899fab9 100644
--- a/subsys/bluetooth/host/smp.c
+++ b/subsys/bluetooth/host/smp.c
@@ -357,15 +357,15 @@
return false;
}
- if (conn->required_sec_level > BT_SECURITY_L2 &&
+ if (conn->required_sec_level >= BT_SECURITY_L3 &&
!(conn->le.keys->flags & BT_KEYS_AUTHENTICATED)) {
return false;
}
- if (conn->required_sec_level > BT_SECURITY_L3 &&
- !(conn->le.keys->flags & BT_KEYS_AUTHENTICATED) &&
- !(conn->le.keys->keys & BT_KEYS_LTK_P256) &&
- !(conn->le.keys->enc_size == BT_SMP_MAX_ENC_KEY_SIZE)) {
+ if (conn->required_sec_level >= BT_SECURITY_L4 &&
+ !((conn->le.keys->flags & BT_KEYS_AUTHENTICATED) &&
+ (conn->le.keys->keys & BT_KEYS_LTK_P256) &&
+ (conn->le.keys->enc_size == BT_SMP_MAX_ENC_KEY_SIZE))) {
return false;
}
