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authorMarcel Holtmann <marcel@holtmann.org>2008-07-14 20:13:48 +0200
committerMarcel Holtmann <marcel@holtmann.org>2008-07-14 20:13:48 +0200
commit41a96212b3b7b3cd59e8e8d33e6dabf0e21d9778 (patch)
tree3ba680af5e3f984d7b32a25c4d71685a54541a8f /net/bluetooth
parent333140b57fa7867bc92e5ee879b6ac4ef5e1d867 (diff)
[Bluetooth] Track status of remote Simple Pairing mode
The Simple Pairing process can only be used if both sides have the support enabled in the host stack. The current Bluetooth specification has three ways to detect this support. If an Extended Inquiry Result has been sent during inquiry then it is safe to assume that Simple Pairing is enabled. It is not allowed to enable Extended Inquiry without Simple Pairing. During the remote name request phase a notification with the remote host supported features will be sent to indicate Simple Pairing support. Also the second page of the remote extended features can indicate support for Simple Pairing. For all three cases the value of remote Simple Pairing mode is stored in the inquiry cache for later use. Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/bluetooth')
-rw-r--r--net/bluetooth/hci_conn.c14
-rw-r--r--net/bluetooth/hci_event.c43
2 files changed, 52 insertions, 5 deletions
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 6175ce841e9..41351ba692e 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -71,12 +71,16 @@ void hci_acl_connect(struct hci_conn *conn)
bacpy(&cp.bdaddr, &conn->dst);
cp.pscan_rep_mode = 0x02;
- if ((ie = hci_inquiry_cache_lookup(hdev, &conn->dst)) &&
- inquiry_entry_age(ie) <= INQUIRY_ENTRY_AGE_MAX) {
- cp.pscan_rep_mode = ie->data.pscan_rep_mode;
- cp.pscan_mode = ie->data.pscan_mode;
- cp.clock_offset = ie->data.clock_offset | cpu_to_le16(0x8000);
+ if ((ie = hci_inquiry_cache_lookup(hdev, &conn->dst))) {
+ if (inquiry_entry_age(ie) <= INQUIRY_ENTRY_AGE_MAX) {
+ cp.pscan_rep_mode = ie->data.pscan_rep_mode;
+ cp.pscan_mode = ie->data.pscan_mode;
+ cp.clock_offset = ie->data.clock_offset |
+ cpu_to_le16(0x8000);
+ }
+
memcpy(conn->dev_class, ie->data.dev_class, 3);
+ conn->ssp_mode = ie->data.ssp_mode;
}
cp.pkt_type = cpu_to_le16(conn->pkt_type);
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 6077a651aac..c8fda7dc298 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -736,6 +736,7 @@ static inline void hci_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *
memcpy(data.dev_class, info->dev_class, 3);
data.clock_offset = info->clock_offset;
data.rssi = 0x00;
+ data.ssp_mode = 0x00;
info++;
hci_inquiry_cache_update(hdev, &data);
}
@@ -1390,6 +1391,7 @@ static inline void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev, struct
memcpy(data.dev_class, info->dev_class, 3);
data.clock_offset = info->clock_offset;
data.rssi = info->rssi;
+ data.ssp_mode = 0x00;
info++;
hci_inquiry_cache_update(hdev, &data);
}
@@ -1404,6 +1406,7 @@ static inline void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev, struct
memcpy(data.dev_class, info->dev_class, 3);
data.clock_offset = info->clock_offset;
data.rssi = info->rssi;
+ data.ssp_mode = 0x00;
info++;
hci_inquiry_cache_update(hdev, &data);
}
@@ -1414,7 +1417,27 @@ static inline void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev, struct
static inline void hci_remote_ext_features_evt(struct hci_dev *hdev, struct sk_buff *skb)
{
+ struct hci_ev_remote_ext_features *ev = (void *) skb->data;
+ struct hci_conn *conn;
+
BT_DBG("%s", hdev->name);
+
+ if (ev->status || ev->page != 0x01)
+ return;
+
+ hci_dev_lock(hdev);
+
+ conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
+ if (conn) {
+ struct inquiry_entry *ie;
+
+ if ((ie = hci_inquiry_cache_lookup(hdev, &conn->dst)))
+ ie->data.ssp_mode = (ev->features[0] & 0x01);
+
+ conn->ssp_mode = (ev->features[0] & 0x01);
+ }
+
+ hci_dev_unlock(hdev);
}
static inline void hci_sync_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
@@ -1494,6 +1517,7 @@ static inline void hci_extended_inquiry_result_evt(struct hci_dev *hdev, struct
memcpy(data.dev_class, info->dev_class, 3);
data.clock_offset = info->clock_offset;
data.rssi = info->rssi;
+ data.ssp_mode = 0x01;
info++;
hci_inquiry_cache_update(hdev, &data);
}
@@ -1533,6 +1557,21 @@ static inline void hci_simple_pair_complete_evt(struct hci_dev *hdev, struct sk_
hci_dev_unlock(hdev);
}
+static inline void hci_remote_host_features_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+ struct hci_ev_remote_host_features *ev = (void *) skb->data;
+ struct inquiry_entry *ie;
+
+ BT_DBG("%s", hdev->name);
+
+ hci_dev_lock(hdev);
+
+ if ((ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr)))
+ ie->data.ssp_mode = (ev->features[0] & 0x01);
+
+ hci_dev_unlock(hdev);
+}
+
void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
{
struct hci_event_hdr *hdr = (void *) skb->data;
@@ -1665,6 +1704,10 @@ void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
hci_simple_pair_complete_evt(hdev, skb);
break;
+ case HCI_EV_REMOTE_HOST_FEATURES:
+ hci_remote_host_features_evt(hdev, skb);
+ break;
+
default:
BT_DBG("%s event 0x%x", hdev->name, event);
break;