Commit e7e62c85 authored by Vinicius Costa Gomes's avatar Vinicius Costa Gomes Committed by Gustavo F. Padovan
Browse files

Bluetooth: Use the link key list to temporarily store the STK



With this we can use only one place to store all keys, without
need to use a field in the connection structure for this
purpose.
Signed-off-by: default avatarVinicius Costa Gomes <vinicius.gomes@openbossa.org>
Signed-off-by: default avatarGustavo F. Padovan <padovan@profusion.mobi>
parent 16b90839
......@@ -390,29 +390,36 @@ static u8 smp_cmd_pairing_random(struct l2cap_conn *conn, struct sk_buff *skb)
}
if (conn->hcon->out) {
u8 stk[16], rand[8];
__le16 ediv;
u8 rand[8];
memset(rand, 0, sizeof(rand));
ediv = 0;
smp_s1(tfm, conn->tk, random, conn->prnd, key);
swap128(key, hcon->ltk);
swap128(key, stk);
memset(hcon->ltk + conn->smp_key_size, 0,
memset(stk + conn->smp_key_size, 0,
SMP_MAX_ENC_KEY_SIZE - conn->smp_key_size);
hci_le_start_enc(hcon, ediv, rand, stk);
} else {
u8 stk[16], r[16], rand[8];
__le16 ediv;
memset(rand, 0, sizeof(rand));
ediv = 0;
hci_le_start_enc(hcon, ediv, rand, hcon->ltk);
} else {
u8 r[16];
swap128(conn->prnd, r);
smp_send_cmd(conn, SMP_CMD_PAIRING_RANDOM, sizeof(r), r);
smp_s1(tfm, conn->tk, conn->prnd, random, key);
swap128(key, hcon->ltk);
swap128(key, stk);
memset(hcon->ltk + conn->smp_key_size, 0,
memset(stk + conn->smp_key_size, 0,
SMP_MAX_ENC_KEY_SIZE - conn->smp_key_size);
hci_add_ltk(conn->hcon->hdev, 0, conn->dst, ediv, rand, stk);
}
return 0;
......
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment