Return-Path: From: Brian Gix To: linux-bluetooth@vger.kernel.org, Gustavo Padovan Cc: Brian Gix Subject: [PATCH-v4 4/9] Bluetooth: Add User Passkey Response handling Date: Wed, 16 Nov 2011 13:53:15 -0800 Message-Id: <1321480400-17397-5-git-send-email-bgix@codeaurora.org> In-Reply-To: <1321480400-17397-1-git-send-email-bgix@codeaurora.org> References: <1321480400-17397-1-git-send-email-bgix@codeaurora.org> Sender: linux-bluetooth-owner@vger.kernel.org List-ID: For some MITM protection pairing scenarios, the user is required to enter or accept a 6 digit passkey. Signed-off-by: Brian Gix --- net/bluetooth/mgmt.c | 74 +++++++++++++++++++++++++++++++++++++++++++++++++- 1 files changed, 73 insertions(+), 1 deletions(-) diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index c06a05c..7a23f21 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -1618,7 +1618,15 @@ static int user_pairing_resp(struct sock *sk, u16 index, bdaddr_t *bdaddr, } /* Continue with pairing via HCI */ - err = hci_send_cmd(hdev, hci_op, sizeof(*bdaddr), bdaddr); + if (hci_op == HCI_OP_USER_PASSKEY_REPLY) { + struct hci_cp_user_passkey_reply cp; + + bacpy(&cp.bdaddr, bdaddr); + cp.passkey = passkey; + err = hci_send_cmd(hdev, hci_op, sizeof(cp), &cp); + } else + err = hci_send_cmd(hdev, hci_op, sizeof(*bdaddr), bdaddr); + if (err < 0) mgmt_pending_remove(cmd); @@ -1660,6 +1668,37 @@ static int user_confirm_neg_reply(struct sock *sk, u16 index, void *data, HCI_OP_USER_CONFIRM_NEG_REPLY, 0); } +static int user_passkey_reply(struct sock *sk, u16 index, void *data, u16 len) +{ + struct mgmt_cp_user_passkey_reply *cp = (void *) data; + + BT_DBG(""); + + if (len != sizeof(*cp)) + return cmd_status(sk, index, MGMT_OP_USER_PASSKEY_REPLY, + EINVAL); + + return user_pairing_resp(sk, index, &cp->bdaddr, + MGMT_OP_USER_PASSKEY_REPLY, + HCI_OP_USER_PASSKEY_REPLY, cp->passkey); +} + +static int user_passkey_neg_reply(struct sock *sk, u16 index, void *data, + u16 len) +{ + struct mgmt_cp_user_passkey_neg_reply *cp = (void *) data; + + BT_DBG(""); + + if (len != sizeof(*cp)) + return cmd_status(sk, index, MGMT_OP_USER_PASSKEY_NEG_REPLY, + EINVAL); + + return user_pairing_resp(sk, index, &cp->bdaddr, + MGMT_OP_USER_PASSKEY_NEG_REPLY, + HCI_OP_USER_PASSKEY_NEG_REPLY, 0); +} + static int set_local_name(struct sock *sk, u16 index, unsigned char *data, u16 len) { @@ -2117,6 +2156,13 @@ int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen) err = user_confirm_neg_reply(sk, index, buf + sizeof(*hdr), len); break; + case MGMT_OP_USER_PASSKEY_REPLY: + err = user_passkey_reply(sk, index, buf + sizeof(*hdr), len); + break; + case MGMT_OP_USER_PASSKEY_NEG_REPLY: + err = user_passkey_neg_reply(sk, index, buf + sizeof(*hdr), + len); + break; case MGMT_OP_SET_LOCAL_NAME: err = set_local_name(sk, index, buf + sizeof(*hdr), len); break; @@ -2477,6 +2523,18 @@ int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr, NULL); } +int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr) +{ + struct mgmt_ev_user_passkey_request ev; + + BT_DBG("%s", hdev->name); + + bacpy(&ev.bdaddr, bdaddr); + + return mgmt_event(MGMT_EV_USER_PASSKEY_REQUEST, hdev, &ev, sizeof(ev), + NULL); +} + static int user_pairing_resp_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 status, u8 opcode) { @@ -2511,6 +2569,20 @@ int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, MGMT_OP_USER_CONFIRM_NEG_REPLY); } +int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, + u8 status) +{ + return user_pairing_resp_complete(hdev, bdaddr, status, + MGMT_OP_USER_PASSKEY_REPLY); +} + +int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, + bdaddr_t *bdaddr, u8 status) +{ + return user_pairing_resp_complete(hdev, bdaddr, status, + MGMT_OP_USER_PASSKEY_NEG_REPLY); +} + int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 status) { struct mgmt_ev_auth_failed ev; -- 1.7.7.2 -- Brian Gix bgix@codeaurora.org Employee of Qualcomm Innovation Center, Inc. Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum