From: Andrei Emeltchenko <andrei.emeltchenko@xxxxxxxxx>
Use standard Linux crypto infrastructure for emulating HCI LE Rand
command.
---
emulator/btdev.c | 21 +++++++++++++--------
1 file changed, 13 insertions(+), 8 deletions(-)
diff --git a/emulator/btdev.c b/emulator/btdev.c
index c95a5c7..7c9cc26 100644
--- a/emulator/btdev.c
+++ b/emulator/btdev.c
@@ -2883,6 +2883,19 @@ static void default_cmd(struct btdev *btdev, uint16_t opcode,
cmd_complete(btdev, opcode, &lenc, sizeof(lenc));
break;
+ case BT_HCI_CMD_LE_RAND:
+ if (btdev->type == BTDEV_TYPE_BREDR)
+ goto unsupported;
+ if (!bt_crypto_random_bytes(btdev->crypto,
+ (uint8_t *)&lr.number, 8)) {
+ cmd_status(btdev, BT_HCI_ERR_COMMAND_DISALLOWED,
+ opcode);
+ break;
+ }
+ lr.status = BT_HCI_ERR_SUCCESS;
+ cmd_complete(btdev, opcode, &lr, sizeof(lr));
+ break;
+
case BT_HCI_CMD_LE_READ_SUPPORTED_STATES:
if (btdev->type == BTDEV_TYPE_BREDR)
goto unsupported;
@@ -2911,14 +2924,6 @@ static void default_cmd(struct btdev *btdev, uint16_t opcode,
cmd_complete(btdev, opcode, &status, sizeof(status));
break;
- case BT_HCI_CMD_LE_RAND:
- if (btdev->type == BTDEV_TYPE_BREDR)
- goto unsupported;
- lr.status = BT_HCI_ERR_SUCCESS;
- lr.number = rand();
- cmd_complete(btdev, opcode, &lr, sizeof(lr));
- break;
-
case BT_HCI_CMD_LE_READ_REMOTE_FEATURES:
if (btdev->type == BTDEV_TYPE_BREDR)
goto unsupported;
--
2.1.4
--
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