From 28cc7bde5978cbc58c9026123fa5f33b62ad66b3 Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Wed, 22 Feb 2012 21:06:55 +0200 Subject: [PATCH] Bluetooth: mgmt: Allow local name changes while powered off This patch makes it possible to set the local name before powering on the device. The name will be applied using the hci_write_local_name command once the device gets powered on. Signed-off-by: Johan Hedberg Acked-by: Marcel Holtmann --- net/bluetooth/hci_event.c | 13 ++++++++++--- net/bluetooth/mgmt.c | 38 ++++++++++++++++++++++++++------------ 2 files changed, 36 insertions(+), 15 deletions(-) diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index 9917fe3d1d18..9b30587c0de6 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -209,11 +209,10 @@ static void hci_cc_write_local_name(struct hci_dev *hdev, struct sk_buff *skb) hci_dev_lock(hdev); - if (status == 0) - memcpy(hdev->dev_name, sent, HCI_MAX_NAME_LENGTH); - if (test_bit(HCI_MGMT, &hdev->dev_flags)) mgmt_set_local_name_complete(hdev, sent, status); + else if (!status) + memcpy(hdev->dev_name, sent, HCI_MAX_NAME_LENGTH); hci_dev_unlock(hdev); } @@ -563,6 +562,14 @@ static void hci_setup(struct hci_dev *hdev) if (hdev->hci_ver > BLUETOOTH_VER_1_1) hci_send_cmd(hdev, HCI_OP_READ_LOCAL_COMMANDS, 0, NULL); + if (!test_bit(HCI_SETUP, &hdev->dev_flags) && + test_bit(HCI_MGMT, &hdev->dev_flags)) { + struct hci_cp_write_local_name cp; + + memcpy(cp.name, hdev->dev_name, sizeof(cp.name)); + hci_send_cmd(hdev, HCI_OP_WRITE_LOCAL_NAME, sizeof(cp), &cp); + } + if (hdev->features[6] & LMP_SIMPLE_PAIR) { if (test_bit(HCI_SSP_ENABLED, &hdev->dev_flags)) { u8 mode = 0x01; diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 3f6a2df9d150..9c1f7714794d 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -2260,22 +2260,29 @@ static int set_local_name(struct sock *sk, u16 index, void *data, hci_dev_lock(hdev); + memcpy(hdev->short_name, mgmt_cp->short_name, + sizeof(hdev->short_name)); + if (!hdev_is_powered(hdev)) { - err = cmd_status(sk, index, MGMT_OP_SET_LOCAL_NAME, - MGMT_STATUS_NOT_POWERED); + memcpy(hdev->dev_name, mgmt_cp->name, sizeof(hdev->dev_name)); + + err = cmd_complete(sk, hdev->id, MGMT_OP_SET_LOCAL_NAME, 0, + data, len); + if (err < 0) + goto failed; + + err = mgmt_event(MGMT_EV_LOCAL_NAME_CHANGED, hdev, data, len, + sk); + goto failed; } - cmd = mgmt_pending_add(sk, MGMT_OP_SET_LOCAL_NAME, hdev, data, - len); + cmd = mgmt_pending_add(sk, MGMT_OP_SET_LOCAL_NAME, hdev, data, len); if (!cmd) { err = -ENOMEM; goto failed; } - memcpy(hdev->short_name, mgmt_cp->short_name, - sizeof(hdev->short_name)); - memcpy(hci_cp.name, mgmt_cp->name, sizeof(hci_cp.name)); err = hci_send_cmd(hdev, HCI_OP_WRITE_LOCAL_NAME, sizeof(hci_cp), &hci_cp); @@ -3563,10 +3570,17 @@ int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status) { struct pending_cmd *cmd; struct mgmt_cp_set_local_name ev; - int err; + bool changed = false; + int err = 0; + + if (memcmp(name, hdev->dev_name, sizeof(hdev->dev_name)) != 0) { + memcpy(hdev->dev_name, name, sizeof(hdev->dev_name)); + changed = true; + } memset(&ev, 0, sizeof(ev)); memcpy(ev.name, name, HCI_MAX_NAME_LENGTH); + memcpy(ev.short_name, hdev->short_name, HCI_MAX_SHORT_NAME_LENGTH); cmd = mgmt_pending_find(MGMT_OP_SET_LOCAL_NAME, hdev); if (!cmd) @@ -3578,16 +3592,16 @@ int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status) goto failed; } - update_eir(hdev); - err = cmd_complete(cmd->sk, hdev->id, MGMT_OP_SET_LOCAL_NAME, 0, &ev, sizeof(ev)); if (err < 0) goto failed; send_event: - err = mgmt_event(MGMT_EV_LOCAL_NAME_CHANGED, hdev, &ev, sizeof(ev), - cmd ? cmd->sk : NULL); + if (changed) + err = mgmt_event(MGMT_EV_LOCAL_NAME_CHANGED, hdev, &ev, + sizeof(ev), cmd ? cmd->sk : NULL); + update_eir(hdev); failed: -- 2.20.1