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Diffstat (limited to 'net/bluetooth/hci_event.c')
-rw-r--r--net/bluetooth/hci_event.c184
1 files changed, 90 insertions, 94 deletions
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 138580745c2c..b93cd2eb5d58 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -48,13 +48,13 @@ static void hci_cc_inquiry_cancel(struct hci_dev *hdev, struct sk_buff *skb)
}
clear_bit(HCI_INQUIRY, &hdev->flags);
+ smp_mb__after_clear_bit(); /* wake_up_bit advises about this barrier */
+ wake_up_bit(&hdev->flags, HCI_INQUIRY);
hci_dev_lock(hdev);
hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
hci_dev_unlock(hdev);
- hci_req_cmd_complete(hdev, HCI_OP_INQUIRY, status);
-
hci_conn_check_pending(hdev);
}
@@ -433,9 +433,9 @@ static void hci_cc_write_ssp_mode(struct hci_dev *hdev, struct sk_buff *skb)
if (!status) {
if (sent->mode)
- hdev->host_features[0] |= LMP_HOST_SSP;
+ hdev->features[1][0] |= LMP_HOST_SSP;
else
- hdev->host_features[0] &= ~LMP_HOST_SSP;
+ hdev->features[1][0] &= ~LMP_HOST_SSP;
}
if (test_bit(HCI_MGMT, &hdev->dev_flags))
@@ -493,18 +493,18 @@ static void hci_cc_read_local_features(struct hci_dev *hdev,
/* Adjust default settings according to features
* supported by device. */
- if (hdev->features[0] & LMP_3SLOT)
+ if (hdev->features[0][0] & LMP_3SLOT)
hdev->pkt_type |= (HCI_DM3 | HCI_DH3);
- if (hdev->features[0] & LMP_5SLOT)
+ if (hdev->features[0][0] & LMP_5SLOT)
hdev->pkt_type |= (HCI_DM5 | HCI_DH5);
- if (hdev->features[1] & LMP_HV2) {
+ if (hdev->features[0][1] & LMP_HV2) {
hdev->pkt_type |= (HCI_HV2);
hdev->esco_type |= (ESCO_HV2);
}
- if (hdev->features[1] & LMP_HV3) {
+ if (hdev->features[0][1] & LMP_HV3) {
hdev->pkt_type |= (HCI_HV3);
hdev->esco_type |= (ESCO_HV3);
}
@@ -512,26 +512,26 @@ static void hci_cc_read_local_features(struct hci_dev *hdev,
if (lmp_esco_capable(hdev))
hdev->esco_type |= (ESCO_EV3);
- if (hdev->features[4] & LMP_EV4)
+ if (hdev->features[0][4] & LMP_EV4)
hdev->esco_type |= (ESCO_EV4);
- if (hdev->features[4] & LMP_EV5)
+ if (hdev->features[0][4] & LMP_EV5)
hdev->esco_type |= (ESCO_EV5);
- if (hdev->features[5] & LMP_EDR_ESCO_2M)
+ if (hdev->features[0][5] & LMP_EDR_ESCO_2M)
hdev->esco_type |= (ESCO_2EV3);
- if (hdev->features[5] & LMP_EDR_ESCO_3M)
+ if (hdev->features[0][5] & LMP_EDR_ESCO_3M)
hdev->esco_type |= (ESCO_3EV3);
- if (hdev->features[5] & LMP_EDR_3S_ESCO)
+ if (hdev->features[0][5] & LMP_EDR_3S_ESCO)
hdev->esco_type |= (ESCO_2EV5 | ESCO_3EV5);
BT_DBG("%s features 0x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x", hdev->name,
- hdev->features[0], hdev->features[1],
- hdev->features[2], hdev->features[3],
- hdev->features[4], hdev->features[5],
- hdev->features[6], hdev->features[7]);
+ hdev->features[0][0], hdev->features[0][1],
+ hdev->features[0][2], hdev->features[0][3],
+ hdev->features[0][4], hdev->features[0][5],
+ hdev->features[0][6], hdev->features[0][7]);
}
static void hci_cc_read_local_ext_features(struct hci_dev *hdev,
@@ -544,14 +544,10 @@ static void hci_cc_read_local_ext_features(struct hci_dev *hdev,
if (rp->status)
return;
- switch (rp->page) {
- case 0:
- memcpy(hdev->features, rp->features, 8);
- break;
- case 1:
- memcpy(hdev->host_features, rp->features, 8);
- break;
- }
+ hdev->max_page = rp->max_page;
+
+ if (rp->page < HCI_MAX_PAGES)
+ memcpy(hdev->features[rp->page], rp->features, 8);
}
static void hci_cc_read_flow_control_mode(struct hci_dev *hdev,
@@ -968,7 +964,7 @@ static void hci_cc_le_set_scan_enable(struct hci_dev *hdev,
return;
switch (cp->enable) {
- case LE_SCANNING_ENABLED:
+ case LE_SCAN_ENABLE:
if (status) {
hci_dev_lock(hdev);
mgmt_start_discovery_failed(hdev, status);
@@ -983,7 +979,7 @@ static void hci_cc_le_set_scan_enable(struct hci_dev *hdev,
hci_dev_unlock(hdev);
break;
- case LE_SCANNING_DISABLED:
+ case LE_SCAN_DISABLE:
if (status) {
hci_dev_lock(hdev);
mgmt_stop_discovery_failed(hdev, status);
@@ -1046,14 +1042,14 @@ static void hci_cc_write_le_host_supported(struct hci_dev *hdev,
if (!status) {
if (sent->le)
- hdev->host_features[0] |= LMP_HOST_LE;
+ hdev->features[1][0] |= LMP_HOST_LE;
else
- hdev->host_features[0] &= ~LMP_HOST_LE;
+ hdev->features[1][0] &= ~LMP_HOST_LE;
if (sent->simul)
- hdev->host_features[0] |= LMP_HOST_LE_BREDR;
+ hdev->features[1][0] |= LMP_HOST_LE_BREDR;
else
- hdev->host_features[0] &= ~LMP_HOST_LE_BREDR;
+ hdev->features[1][0] &= ~LMP_HOST_LE_BREDR;
}
if (test_bit(HCI_MGMT, &hdev->dev_flags) &&
@@ -1190,7 +1186,7 @@ static void hci_cs_auth_requested(struct hci_dev *hdev, __u8 status)
if (conn) {
if (conn->state == BT_CONFIG) {
hci_proto_connect_cfm(conn, status);
- hci_conn_put(conn);
+ hci_conn_drop(conn);
}
}
@@ -1217,7 +1213,7 @@ static void hci_cs_set_conn_encrypt(struct hci_dev *hdev, __u8 status)
if (conn) {
if (conn->state == BT_CONFIG) {
hci_proto_connect_cfm(conn, status);
- hci_conn_put(conn);
+ hci_conn_drop(conn);
}
}
@@ -1379,7 +1375,7 @@ static void hci_cs_read_remote_features(struct hci_dev *hdev, __u8 status)
if (conn) {
if (conn->state == BT_CONFIG) {
hci_proto_connect_cfm(conn, status);
- hci_conn_put(conn);
+ hci_conn_drop(conn);
}
}
@@ -1406,7 +1402,7 @@ static void hci_cs_read_remote_ext_features(struct hci_dev *hdev, __u8 status)
if (conn) {
if (conn->state == BT_CONFIG) {
hci_proto_connect_cfm(conn, status);
- hci_conn_put(conn);
+ hci_conn_drop(conn);
}
}
@@ -1600,13 +1596,14 @@ static void hci_inquiry_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
BT_DBG("%s status 0x%2.2x", hdev->name, status);
- hci_req_cmd_complete(hdev, HCI_OP_INQUIRY, status);
-
hci_conn_check_pending(hdev);
if (!test_and_clear_bit(HCI_INQUIRY, &hdev->flags))
return;
+ smp_mb__after_clear_bit(); /* wake_up_bit advises about this barrier */
+ wake_up_bit(&hdev->flags, HCI_INQUIRY);
+
if (!test_bit(HCI_MGMT, &hdev->dev_flags))
return;
@@ -1705,7 +1702,6 @@ static void hci_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
} else
conn->state = BT_CONNECTED;
- hci_conn_hold_device(conn);
hci_conn_add_sysfs(conn);
if (test_bit(HCI_AUTH, &hdev->flags))
@@ -1752,42 +1748,6 @@ unlock:
hci_conn_check_pending(hdev);
}
-void hci_conn_accept(struct hci_conn *conn, int mask)
-{
- struct hci_dev *hdev = conn->hdev;
-
- BT_DBG("conn %p", conn);
-
- conn->state = BT_CONFIG;
-
- if (!lmp_esco_capable(hdev)) {
- struct hci_cp_accept_conn_req cp;
-
- bacpy(&cp.bdaddr, &conn->dst);
-
- if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER))
- cp.role = 0x00; /* Become master */
- else
- cp.role = 0x01; /* Remain slave */
-
- hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ, sizeof(cp), &cp);
- } else /* lmp_esco_capable(hdev)) */ {
- struct hci_cp_accept_sync_conn_req cp;
-
- bacpy(&cp.bdaddr, &conn->dst);
- cp.pkt_type = cpu_to_le16(conn->pkt_type);
-
- cp.tx_bandwidth = __constant_cpu_to_le32(0x00001f40);
- cp.rx_bandwidth = __constant_cpu_to_le32(0x00001f40);
- cp.max_latency = __constant_cpu_to_le16(0xffff);
- cp.content_format = cpu_to_le16(hdev->voice_setting);
- cp.retrans_effort = 0xff;
-
- hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ,
- sizeof(cp), &cp);
- }
-}
-
static void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
{
struct hci_ev_conn_request *ev = (void *) skb->data;
@@ -1859,7 +1819,6 @@ static void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
} else {
conn->state = BT_CONNECT2;
hci_proto_connect_cfm(conn, 0);
- hci_conn_put(conn);
}
} else {
/* Connection rejected */
@@ -1966,14 +1925,14 @@ static void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
} else {
conn->state = BT_CONNECTED;
hci_proto_connect_cfm(conn, ev->status);
- hci_conn_put(conn);
+ hci_conn_drop(conn);
}
} else {
hci_auth_cfm(conn, ev->status);
hci_conn_hold(conn);
conn->disc_timeout = HCI_DISCONN_TIMEOUT;
- hci_conn_put(conn);
+ hci_conn_drop(conn);
}
if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) {
@@ -2057,7 +2016,7 @@ static void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
if (ev->status && conn->state == BT_CONNECTED) {
hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
- hci_conn_put(conn);
+ hci_conn_drop(conn);
goto unlock;
}
@@ -2066,7 +2025,7 @@ static void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
conn->state = BT_CONNECTED;
hci_proto_connect_cfm(conn, ev->status);
- hci_conn_put(conn);
+ hci_conn_drop(conn);
} else
hci_encrypt_cfm(conn, ev->status, ev->encrypt);
}
@@ -2113,7 +2072,7 @@ static void hci_remote_features_evt(struct hci_dev *hdev,
goto unlock;
if (!ev->status)
- memcpy(conn->features, ev->features, 8);
+ memcpy(conn->features[0], ev->features, 8);
if (conn->state != BT_CONFIG)
goto unlock;
@@ -2141,7 +2100,7 @@ static void hci_remote_features_evt(struct hci_dev *hdev,
if (!hci_outgoing_auth_needed(hdev, conn)) {
conn->state = BT_CONNECTED;
hci_proto_connect_cfm(conn, ev->status);
- hci_conn_put(conn);
+ hci_conn_drop(conn);
}
unlock:
@@ -2462,7 +2421,9 @@ static void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb)
if (opcode != HCI_OP_NOP)
del_timer(&hdev->cmd_timer);
- hci_req_cmd_status(hdev, opcode, ev->status);
+ if (ev->status ||
+ (hdev->sent_cmd && !bt_cb(hdev->sent_cmd)->req.event))
+ hci_req_cmd_complete(hdev, opcode, ev->status);
if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags)) {
atomic_set(&hdev->cmd_cnt, 1);
@@ -2679,7 +2640,7 @@ static void hci_pin_code_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
if (conn->state == BT_CONNECTED) {
hci_conn_hold(conn);
conn->disc_timeout = HCI_PAIRING_TIMEOUT;
- hci_conn_put(conn);
+ hci_conn_drop(conn);
}
if (!test_bit(HCI_PAIRABLE, &hdev->dev_flags))
@@ -2782,7 +2743,7 @@ static void hci_link_key_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
if (ev->key_type != HCI_LK_CHANGED_COMBINATION)
conn->key_type = ev->key_type;
- hci_conn_put(conn);
+ hci_conn_drop(conn);
}
if (test_bit(HCI_LINK_KEYS, &hdev->dev_flags))
@@ -2923,6 +2884,9 @@ static void hci_remote_ext_features_evt(struct hci_dev *hdev,
if (!conn)
goto unlock;
+ if (ev->page < HCI_MAX_PAGES)
+ memcpy(conn->features[ev->page], ev->features, 8);
+
if (!ev->status && ev->page == 0x01) {
struct inquiry_entry *ie;
@@ -2930,8 +2894,19 @@ static void hci_remote_ext_features_evt(struct hci_dev *hdev,
if (ie)
ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
- if (ev->features[0] & LMP_HOST_SSP)
+ if (ev->features[0] & LMP_HOST_SSP) {
set_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
+ } else {
+ /* It is mandatory by the Bluetooth specification that
+ * Extended Inquiry Results are only used when Secure
+ * Simple Pairing is enabled, but some devices violate
+ * this.
+ *
+ * To make these devices work, the internal SSP
+ * enabled flag needs to be cleared if the remote host
+ * features do not indicate SSP support */
+ clear_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
+ }
}
if (conn->state != BT_CONFIG)
@@ -2951,7 +2926,7 @@ static void hci_remote_ext_features_evt(struct hci_dev *hdev,
if (!hci_outgoing_auth_needed(hdev, conn)) {
conn->state = BT_CONNECTED;
hci_proto_connect_cfm(conn, ev->status);
- hci_conn_put(conn);
+ hci_conn_drop(conn);
}
unlock:
@@ -2985,7 +2960,6 @@ static void hci_sync_conn_complete_evt(struct hci_dev *hdev,
conn->handle = __le16_to_cpu(ev->handle);
conn->state = BT_CONNECTED;
- hci_conn_hold_device(conn);
hci_conn_add_sysfs(conn);
break;
@@ -3084,7 +3058,7 @@ static void hci_key_refresh_complete_evt(struct hci_dev *hdev,
if (ev->status && conn->state == BT_CONNECTED) {
hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
- hci_conn_put(conn);
+ hci_conn_drop(conn);
goto unlock;
}
@@ -3093,13 +3067,13 @@ static void hci_key_refresh_complete_evt(struct hci_dev *hdev,
conn->state = BT_CONNECTED;
hci_proto_connect_cfm(conn, ev->status);
- hci_conn_put(conn);
+ hci_conn_drop(conn);
} else {
hci_auth_cfm(conn, ev->status);
hci_conn_hold(conn);
conn->disc_timeout = HCI_DISCONN_TIMEOUT;
- hci_conn_put(conn);
+ hci_conn_drop(conn);
}
unlock:
@@ -3360,7 +3334,7 @@ static void hci_simple_pair_complete_evt(struct hci_dev *hdev,
mgmt_auth_failed(hdev, &conn->dst, conn->type, conn->dst_type,
ev->status);
- hci_conn_put(conn);
+ hci_conn_drop(conn);
unlock:
hci_dev_unlock(hdev);
@@ -3371,11 +3345,16 @@ static void hci_remote_host_features_evt(struct hci_dev *hdev,
{
struct hci_ev_remote_host_features *ev = (void *) skb->data;
struct inquiry_entry *ie;
+ struct hci_conn *conn;
BT_DBG("%s", hdev->name);
hci_dev_lock(hdev);
+ conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
+ if (conn)
+ memcpy(conn->features[1], ev->features, 8);
+
ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
if (ie)
ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
@@ -3448,9 +3427,8 @@ static void hci_phy_link_complete_evt(struct hci_dev *hdev,
hci_conn_hold(hcon);
hcon->disc_timeout = HCI_DISCONN_TIMEOUT;
- hci_conn_put(hcon);
+ hci_conn_drop(hcon);
- hci_conn_hold_device(hcon);
hci_conn_add_sysfs(hcon);
amp_physical_cfm(bredr_hcon, hcon);
@@ -3584,7 +3562,6 @@ static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
conn->handle = __le16_to_cpu(ev->handle);
conn->state = BT_CONNECTED;
- hci_conn_hold_device(conn);
hci_conn_add_sysfs(conn);
hci_proto_connect_cfm(conn, ev->status);
@@ -3698,8 +3675,27 @@ void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
struct hci_event_hdr *hdr = (void *) skb->data;
__u8 event = hdr->evt;
+ hci_dev_lock(hdev);
+
+ /* Received events are (currently) only needed when a request is
+ * ongoing so avoid unnecessary memory allocation.
+ */
+ if (hdev->req_status == HCI_REQ_PEND) {
+ kfree_skb(hdev->recv_evt);
+ hdev->recv_evt = skb_clone(skb, GFP_KERNEL);
+ }
+
+ hci_dev_unlock(hdev);
+
skb_pull(skb, HCI_EVENT_HDR_SIZE);
+ if (hdev->sent_cmd && bt_cb(hdev->sent_cmd)->req.event == event) {
+ struct hci_command_hdr *hdr = (void *) hdev->sent_cmd->data;
+ u16 opcode = __le16_to_cpu(hdr->opcode);
+
+ hci_req_cmd_complete(hdev, opcode, 0);
+ }
+
switch (event) {
case HCI_EV_INQUIRY_COMPLETE:
hci_inquiry_complete_evt(hdev, skb);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-17 21:30:00 +0000