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Diffstat (limited to 'net/bluetooth/hci_event.c')
-rw-r--r--net/bluetooth/hci_event.c307
1 files changed, 264 insertions, 43 deletions
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index f13ddbf858ba..a40170e022e8 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -45,6 +45,8 @@
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
+static int enable_le;
+
/* Handle HCI Event packets */
static void hci_cc_inquiry_cancel(struct hci_dev *hdev, struct sk_buff *skb)
@@ -477,14 +479,16 @@ static void hci_setup_event_mask(struct hci_dev *hdev)
* command otherwise */
u8 events[8] = { 0xff, 0xff, 0xfb, 0xff, 0x00, 0x00, 0x00, 0x00 };
- /* Events for 1.2 and newer controllers */
- if (hdev->lmp_ver > 1) {
- events[4] |= 0x01; /* Flow Specification Complete */
- events[4] |= 0x02; /* Inquiry Result with RSSI */
- events[4] |= 0x04; /* Read Remote Extended Features Complete */
- events[5] |= 0x08; /* Synchronous Connection Complete */
- events[5] |= 0x10; /* Synchronous Connection Changed */
- }
+ /* CSR 1.1 dongles does not accept any bitfield so don't try to set
+ * any event mask for pre 1.2 devices */
+ if (hdev->lmp_ver <= 1)
+ return;
+
+ events[4] |= 0x01; /* Flow Specification Complete */
+ events[4] |= 0x02; /* Inquiry Result with RSSI */
+ events[4] |= 0x04; /* Read Remote Extended Features Complete */
+ events[5] |= 0x08; /* Synchronous Connection Complete */
+ events[5] |= 0x10; /* Synchronous Connection Changed */
if (hdev->features[3] & LMP_RSSI_INQ)
events[4] |= 0x04; /* Inquiry Result with RSSI */
@@ -523,6 +527,20 @@ static void hci_setup_event_mask(struct hci_dev *hdev)
hci_send_cmd(hdev, HCI_OP_SET_EVENT_MASK, sizeof(events), events);
}
+static void hci_set_le_support(struct hci_dev *hdev)
+{
+ struct hci_cp_write_le_host_supported cp;
+
+ memset(&cp, 0, sizeof(cp));
+
+ if (enable_le) {
+ cp.le = 1;
+ cp.simul = !!(hdev->features[6] & LMP_SIMUL_LE_BR);
+ }
+
+ hci_send_cmd(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED, sizeof(cp), &cp);
+}
+
static void hci_setup(struct hci_dev *hdev)
{
hci_setup_event_mask(hdev);
@@ -540,6 +558,17 @@ static void hci_setup(struct hci_dev *hdev)
if (hdev->features[7] & LMP_INQ_TX_PWR)
hci_send_cmd(hdev, HCI_OP_READ_INQ_RSP_TX_POWER, 0, NULL);
+
+ if (hdev->features[7] & LMP_EXTFEATURES) {
+ struct hci_cp_read_local_ext_features cp;
+
+ cp.page = 0x01;
+ hci_send_cmd(hdev, HCI_OP_READ_LOCAL_EXT_FEATURES,
+ sizeof(cp), &cp);
+ }
+
+ if (hdev->features[4] & LMP_LE)
+ hci_set_le_support(hdev);
}
static void hci_cc_read_local_version(struct hci_dev *hdev, struct sk_buff *skb)
@@ -656,6 +685,21 @@ static void hci_cc_read_local_features(struct hci_dev *hdev, struct sk_buff *skb
hdev->features[6], hdev->features[7]);
}
+static void hci_cc_read_local_ext_features(struct hci_dev *hdev,
+ struct sk_buff *skb)
+{
+ struct hci_rp_read_local_ext_features *rp = (void *) skb->data;
+
+ BT_DBG("%s status 0x%x", hdev->name, rp->status);
+
+ if (rp->status)
+ return;
+
+ memcpy(hdev->extfeatures, rp->features, 8);
+
+ hci_req_complete(hdev, HCI_OP_READ_LOCAL_EXT_FEATURES, rp->status);
+}
+
static void hci_cc_read_buffer_size(struct hci_dev *hdev, struct sk_buff *skb)
{
struct hci_rp_read_buffer_size *rp = (void *) skb->data;
@@ -839,6 +883,72 @@ static void hci_cc_read_local_oob_data_reply(struct hci_dev *hdev,
rp->randomizer, rp->status);
}
+static void hci_cc_le_set_scan_enable(struct hci_dev *hdev,
+ struct sk_buff *skb)
+{
+ struct hci_cp_le_set_scan_enable *cp;
+ __u8 status = *((__u8 *) skb->data);
+
+ BT_DBG("%s status 0x%x", hdev->name, status);
+
+ if (status)
+ return;
+
+ cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_ENABLE);
+ if (!cp)
+ return;
+
+ hci_dev_lock(hdev);
+
+ if (cp->enable == 0x01) {
+ del_timer(&hdev->adv_timer);
+ hci_adv_entries_clear(hdev);
+ } else if (cp->enable == 0x00) {
+ mod_timer(&hdev->adv_timer, jiffies + ADV_CLEAR_TIMEOUT);
+ }
+
+ hci_dev_unlock(hdev);
+}
+
+static void hci_cc_le_ltk_reply(struct hci_dev *hdev, struct sk_buff *skb)
+{
+ struct hci_rp_le_ltk_reply *rp = (void *) skb->data;
+
+ BT_DBG("%s status 0x%x", hdev->name, rp->status);
+
+ if (rp->status)
+ return;
+
+ hci_req_complete(hdev, HCI_OP_LE_LTK_REPLY, rp->status);
+}
+
+static void hci_cc_le_ltk_neg_reply(struct hci_dev *hdev, struct sk_buff *skb)
+{
+ struct hci_rp_le_ltk_neg_reply *rp = (void *) skb->data;
+
+ BT_DBG("%s status 0x%x", hdev->name, rp->status);
+
+ if (rp->status)
+ return;
+
+ hci_req_complete(hdev, HCI_OP_LE_LTK_NEG_REPLY, rp->status);
+}
+
+static inline void hci_cc_write_le_host_supported(struct hci_dev *hdev,
+ struct sk_buff *skb)
+{
+ struct hci_cp_read_local_ext_features cp;
+ __u8 status = *((__u8 *) skb->data);
+
+ BT_DBG("%s status 0x%x", hdev->name, status);
+
+ if (status)
+ return;
+
+ cp.page = 0x01;
+ hci_send_cmd(hdev, HCI_OP_READ_LOCAL_EXT_FEATURES, sizeof(cp), &cp);
+}
+
static inline void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
{
BT_DBG("%s status 0x%x", hdev->name, status);
@@ -1207,16 +1317,23 @@ static void hci_cs_le_create_conn(struct hci_dev *hdev, __u8 status)
} else {
if (!conn) {
conn = hci_conn_add(hdev, LE_LINK, &cp->peer_addr);
- if (conn)
+ if (conn) {
+ conn->dst_type = cp->peer_addr_type;
conn->out = 1;
- else
+ } else {
BT_ERR("No memory for new connection");
+ }
}
}
hci_dev_unlock(hdev);
}
+static void hci_cs_le_start_enc(struct hci_dev *hdev, u8 status)
+{
+ BT_DBG("%s status 0x%x", hdev->name, status);
+}
+
static inline void hci_inquiry_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
{
__u8 status = *((__u8 *) skb->data);
@@ -1460,51 +1577,58 @@ static inline void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *s
hci_dev_lock(hdev);
conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
- if (conn) {
- if (!ev->status) {
+ if (!conn)
+ goto unlock;
+
+ if (!ev->status) {
+ if (!(conn->ssp_mode > 0 && hdev->ssp_mode > 0) &&
+ test_bit(HCI_CONN_REAUTH_PEND, &conn->pend)) {
+ BT_INFO("re-auth of legacy device is not possible.");
+ } else {
conn->link_mode |= HCI_LM_AUTH;
conn->sec_level = conn->pending_sec_level;
- } else {
- mgmt_auth_failed(hdev->id, &conn->dst, ev->status);
}
+ } else {
+ mgmt_auth_failed(hdev->id, &conn->dst, ev->status);
+ }
- clear_bit(HCI_CONN_AUTH_PEND, &conn->pend);
+ clear_bit(HCI_CONN_AUTH_PEND, &conn->pend);
+ clear_bit(HCI_CONN_REAUTH_PEND, &conn->pend);
- if (conn->state == BT_CONFIG) {
- if (!ev->status && hdev->ssp_mode > 0 &&
- conn->ssp_mode > 0) {
- struct hci_cp_set_conn_encrypt cp;
- cp.handle = ev->handle;
- cp.encrypt = 0x01;
- hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT,
- sizeof(cp), &cp);
- } else {
- conn->state = BT_CONNECTED;
- hci_proto_connect_cfm(conn, ev->status);
- hci_conn_put(conn);
- }
+ if (conn->state == BT_CONFIG) {
+ if (!ev->status && hdev->ssp_mode > 0 && conn->ssp_mode > 0) {
+ struct hci_cp_set_conn_encrypt cp;
+ cp.handle = ev->handle;
+ cp.encrypt = 0x01;
+ hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
+ &cp);
} else {
- hci_auth_cfm(conn, ev->status);
-
- hci_conn_hold(conn);
- conn->disc_timeout = HCI_DISCONN_TIMEOUT;
+ conn->state = BT_CONNECTED;
+ hci_proto_connect_cfm(conn, ev->status);
hci_conn_put(conn);
}
+ } else {
+ hci_auth_cfm(conn, ev->status);
- if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) {
- if (!ev->status) {
- struct hci_cp_set_conn_encrypt cp;
- cp.handle = ev->handle;
- cp.encrypt = 0x01;
- hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT,
- sizeof(cp), &cp);
- } else {
- clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend);
- hci_encrypt_cfm(conn, ev->status, 0x00);
- }
+ hci_conn_hold(conn);
+ conn->disc_timeout = HCI_DISCONN_TIMEOUT;
+ hci_conn_put(conn);
+ }
+
+ if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) {
+ if (!ev->status) {
+ struct hci_cp_set_conn_encrypt cp;
+ cp.handle = ev->handle;
+ cp.encrypt = 0x01;
+ hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
+ &cp);
+ } else {
+ clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend);
+ hci_encrypt_cfm(conn, ev->status, 0x00);
}
}
+unlock:
hci_dev_unlock(hdev);
}
@@ -1555,6 +1679,7 @@ static inline void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *
/* Encryption implies authentication */
conn->link_mode |= HCI_LM_AUTH;
conn->link_mode |= HCI_LM_ENCRYPT;
+ conn->sec_level = conn->pending_sec_level;
} else
conn->link_mode &= ~HCI_LM_ENCRYPT;
}
@@ -1758,6 +1883,10 @@ static inline void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *sk
hci_cc_read_local_features(hdev, skb);
break;
+ case HCI_OP_READ_LOCAL_EXT_FEATURES:
+ hci_cc_read_local_ext_features(hdev, skb);
+ break;
+
case HCI_OP_READ_BUFFER_SIZE:
hci_cc_read_buffer_size(hdev, skb);
break;
@@ -1814,6 +1943,22 @@ static inline void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *sk
hci_cc_user_confirm_neg_reply(hdev, skb);
break;
+ case HCI_OP_LE_SET_SCAN_ENABLE:
+ hci_cc_le_set_scan_enable(hdev, skb);
+ break;
+
+ case HCI_OP_LE_LTK_REPLY:
+ hci_cc_le_ltk_reply(hdev, skb);
+ break;
+
+ case HCI_OP_LE_LTK_NEG_REPLY:
+ hci_cc_le_ltk_neg_reply(hdev, skb);
+ break;
+
+ case HCI_OP_WRITE_LE_HOST_SUPPORTED:
+ hci_cc_write_le_host_supported(hdev, skb);
+ break;
+
default:
BT_DBG("%s opcode 0x%x", hdev->name, opcode);
break;
@@ -1892,6 +2037,10 @@ static inline void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb)
hci_cs_le_create_conn(hdev, ev->status);
break;
+ case HCI_OP_LE_START_ENC:
+ hci_cs_le_start_enc(hdev, ev->status);
+ break;
+
default:
BT_DBG("%s opcode 0x%x", hdev->name, opcode);
break;
@@ -2656,6 +2805,8 @@ static inline void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff
hci_dev_unlock(hdev);
return;
}
+
+ conn->dst_type = ev->bdaddr_type;
}
if (ev->status) {
@@ -2668,6 +2819,7 @@ static inline void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff
mgmt_connected(hdev->id, &ev->bdaddr);
+ conn->sec_level = BT_SECURITY_LOW;
conn->handle = __le16_to_cpu(ev->handle);
conn->state = BT_CONNECTED;
@@ -2680,6 +2832,64 @@ unlock:
hci_dev_unlock(hdev);
}
+static inline void hci_le_adv_report_evt(struct hci_dev *hdev,
+ struct sk_buff *skb)
+{
+ struct hci_ev_le_advertising_info *ev;
+ u8 num_reports;
+
+ num_reports = skb->data[0];
+ ev = (void *) &skb->data[1];
+
+ hci_dev_lock(hdev);
+
+ hci_add_adv_entry(hdev, ev);
+
+ while (--num_reports) {
+ ev = (void *) (ev->data + ev->length + 1);
+ hci_add_adv_entry(hdev, ev);
+ }
+
+ hci_dev_unlock(hdev);
+}
+
+static inline void hci_le_ltk_request_evt(struct hci_dev *hdev,
+ struct sk_buff *skb)
+{
+ struct hci_ev_le_ltk_req *ev = (void *) skb->data;
+ struct hci_cp_le_ltk_reply cp;
+ struct hci_cp_le_ltk_neg_reply neg;
+ struct hci_conn *conn;
+ struct link_key *ltk;
+
+ BT_DBG("%s handle %d", hdev->name, cpu_to_le16(ev->handle));
+
+ hci_dev_lock(hdev);
+
+ conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
+ if (conn == NULL)
+ goto not_found;
+
+ ltk = hci_find_ltk(hdev, ev->ediv, ev->random);
+ if (ltk == NULL)
+ goto not_found;
+
+ memcpy(cp.ltk, ltk->val, sizeof(ltk->val));
+ cp.handle = cpu_to_le16(conn->handle);
+ conn->pin_length = ltk->pin_len;
+
+ hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp);
+
+ hci_dev_unlock(hdev);
+
+ return;
+
+not_found:
+ neg.handle = ev->handle;
+ hci_send_cmd(hdev, HCI_OP_LE_LTK_NEG_REPLY, sizeof(neg), &neg);
+ hci_dev_unlock(hdev);
+}
+
static inline void hci_le_meta_evt(struct hci_dev *hdev, struct sk_buff *skb)
{
struct hci_ev_le_meta *le_ev = (void *) skb->data;
@@ -2691,6 +2901,14 @@ static inline void hci_le_meta_evt(struct hci_dev *hdev, struct sk_buff *skb)
hci_le_conn_complete_evt(hdev, skb);
break;
+ case HCI_EV_LE_ADVERTISING_REPORT:
+ hci_le_adv_report_evt(hdev, skb);
+ break;
+
+ case HCI_EV_LE_LTK_REQ:
+ hci_le_ltk_request_evt(hdev, skb);
+ break;
+
default:
break;
}
@@ -2884,3 +3102,6 @@ void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data)
hci_send_to_sock(hdev, skb, NULL);
kfree_skb(skb);
}
+
+module_param(enable_le, bool, 0444);
+MODULE_PARM_DESC(enable_le, "Enable LE support");