When the controller supports the Read LE Resolv List size feature, the
maximum list size are read and now stored.
Before patch:
< HCI Command: LE Read White List... (0x08|0x000f) plen 0 #55 [hci0] 17.979791
> HCI Event: Command Complete (0x0e) plen 5 #56 [hci0] 17.980629
LE Read White List Size (0x08|0x000f) ncmd 1
Status: Success (0x00)
Size: 25
< HCI Command: LE Clear White List (0x08|0x0010) plen 0 #57 [hci0] 17.980786
> HCI Event: Command Complete (0x0e) plen 4 #58 [hci0] 17.981627
LE Clear White List (0x08|0x0010) ncmd 1
Status: Success (0x00)
< HCI Command: LE Read Maximum Dat.. (0x08|0x002f) plen 0 #59 [hci0] 17.981786
> HCI Event: Command Complete (0x0e) plen 12 #60 [hci0] 17.982636
LE Read Maximum Data Length (0x08|0x002f) ncmd 1
Status: Success (0x00)
Max TX octets: 251
Max TX time: 17040
Max RX octets: 251
Max RX time: 17040
After patch:
< HCI Command: LE Read White List... (0x08|0x000f) plen 0 #55 [hci0] 13.338168
> HCI Event: Command Complete (0x0e) plen 5 #56 [hci0] 13.338842
LE Read White List Size (0x08|0x000f) ncmd 1
Status: Success (0x00)
Size: 25
< HCI Command: LE Clear White List (0x08|0x0010) plen 0 #57 [hci0] 13.339029
> HCI Event: Command Complete (0x0e) plen 4 #58 [hci0] 13.339939
LE Clear White List (0x08|0x0010) ncmd 1
Status: Success (0x00)
< HCI Command: LE Read Resolving L.. (0x08|0x002a) plen 0 #59 [hci0] 13.340152
> HCI Event: Command Complete (0x0e) plen 5 #60 [hci0] 13.340952
LE Read Resolving List Size (0x08|0x002a) ncmd 1
Status: Success (0x00)
Size: 25
< HCI Command: LE Read Maximum Dat.. (0x08|0x002f) plen 0 #61 [hci0] 13.341180
> HCI Event: Command Complete (0x0e) plen 12 #62 [hci0] 13.341898
LE Read Maximum Data Length (0x08|0x002f) ncmd 1
Status: Success (0x00)
Max TX octets: 251
Max TX time: 17040
Max RX octets: 251
Max RX time: 17040
Signed-off-by: Ankit Navik <ankit.p.navik@xxxxxxxxx>
---
include/net/bluetooth/hci.h | 6 ++++++
include/net/bluetooth/hci_core.h | 2 ++
net/bluetooth/hci_core.c | 8 ++++++++
net/bluetooth/hci_debugfs.c | 19 +++++++++++++++++++
net/bluetooth/hci_event.c | 18 ++++++++++++++++++
5 files changed, 53 insertions(+)
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 1668211..484f24c 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -1490,6 +1490,12 @@ struct hci_cp_le_write_def_data_len {
__le16 tx_time;
} __packed;
+#define HCI_OP_LE_READ_RESOLV_LIST_SIZE 0x202a
+struct hci_rp_le_read_resolv_list_size {
+ __u8 status;
+ __u8 size;
+} __packed;
+
#define HCI_OP_LE_READ_MAX_DATA_LEN 0x202f
struct hci_rp_le_read_max_data_len {
__u8 status;
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index b619a19..3a1ae0d 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -221,6 +221,7 @@ struct hci_dev {
__u8 features[HCI_MAX_PAGES][8];
__u8 le_features[8];
__u8 le_white_list_size;
+ __u8 le_resolv_list_size;
__u8 le_states[8];
__u8 commands[64];
__u8 hci_ver;
@@ -367,6 +368,7 @@ struct hci_dev {
struct list_head identity_resolving_keys;
struct list_head remote_oob_data;
struct list_head le_white_list;
+ struct list_head le_resolv_list;
struct list_head le_conn_params;
struct list_head pend_le_conns;
struct list_head pend_le_reports;
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 40d260f..51efc4a 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -723,6 +723,12 @@ static int hci_init3_req(struct hci_request *req, unsigned long opt)
hci_req_add(req, HCI_OP_LE_CLEAR_WHITE_LIST, 0, NULL);
}
+ if (hdev->commands[34] & 0x40) {
+ /* Read LE Resolv List Size */
+ hci_req_add(req, HCI_OP_LE_READ_RESOLV_LIST_SIZE,
+ 0, NULL);
+ }
+
if (hdev->le_features[0] & HCI_LE_DATA_LEN_EXT) {
/* Read LE Maximum Data Length */
hci_req_add(req, HCI_OP_LE_READ_MAX_DATA_LEN, 0, NULL);
@@ -3026,6 +3032,7 @@ struct hci_dev *hci_alloc_dev(void)
INIT_LIST_HEAD(&hdev->identity_resolving_keys);
INIT_LIST_HEAD(&hdev->remote_oob_data);
INIT_LIST_HEAD(&hdev->le_white_list);
+ INIT_LIST_HEAD(&hdev->le_resolv_list);
INIT_LIST_HEAD(&hdev->le_conn_params);
INIT_LIST_HEAD(&hdev->pend_le_conns);
INIT_LIST_HEAD(&hdev->pend_le_reports);
@@ -3227,6 +3234,7 @@ void hci_unregister_dev(struct hci_dev *hdev)
hci_remote_oob_data_clear(hdev);
hci_adv_instances_clear(hdev);
hci_bdaddr_list_clear(&hdev->le_white_list);
+ hci_bdaddr_list_clear(&hdev->le_resolv_list);
hci_conn_params_clear_all(hdev);
hci_discovery_filter_clear(hdev);
hci_dev_unlock(hdev);
diff --git a/net/bluetooth/hci_debugfs.c b/net/bluetooth/hci_debugfs.c
index 418b76e..fa12108 100644
--- a/net/bluetooth/hci_debugfs.c
+++ b/net/bluetooth/hci_debugfs.c
@@ -702,6 +702,21 @@ static int white_list_show(struct seq_file *f, void *ptr)
DEFINE_SHOW_ATTRIBUTE(white_list);
+static int resolv_list_show(struct seq_file *f, void *ptr)
+{
+ struct hci_dev *hdev = f->private;
+ struct bdaddr_list *b;
+
+ hci_dev_lock(hdev);
+ list_for_each_entry(b, &hdev->le_resolv_list, list)
+ seq_printf(f, "%pMR (type %u)\n", &b->bdaddr, b->bdaddr_type);
+ hci_dev_unlock(hdev);
+
+ return 0;
+}
+
+DEFINE_SHOW_ATTRIBUTE(resolv_list);
+
static int identity_resolving_keys_show(struct seq_file *f, void *ptr)
{
struct hci_dev *hdev = f->private;
@@ -963,6 +978,10 @@ void hci_debugfs_create_le(struct hci_dev *hdev)
&hdev->le_white_list_size);
debugfs_create_file("white_list", 0444, hdev->debugfs, hdev,
&white_list_fops);
+ debugfs_create_u8("resolv_list_size", 0444, hdev->debugfs,
+ &hdev->le_resolv_list_size);
+ debugfs_create_file("resolv_list", 0444, hdev->debugfs, hdev,
+ &resolv_list_fops);
debugfs_create_file("identity_resolving_keys", 0400, hdev->debugfs,
hdev, &identity_resolving_keys_fops);
debugfs_create_file("long_term_keys", 0400, hdev->debugfs, hdev,
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 139707c..c57969a 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -221,6 +221,7 @@ static void hci_cc_reset(struct hci_dev *hdev, struct sk_buff *skb)
hdev->ssp_debug_mode = 0;
hci_bdaddr_list_clear(&hdev->le_white_list);
+ hci_bdaddr_list_clear(&hdev->le_resolv_list);
}
static void hci_cc_read_stored_link_key(struct hci_dev *hdev,
@@ -1306,6 +1307,19 @@ static void hci_cc_le_write_def_data_len(struct hci_dev *hdev,
hdev->le_def_tx_time = le16_to_cpu(sent->tx_time);
}
+static void hci_cc_le_read_resolv_list_size(struct hci_dev *hdev,
+ struct sk_buff *skb)
+{
+ struct hci_rp_le_read_resolv_list_size *rp = (void *) skb->data;
+
+ BT_DBG("%s status 0x%2.2x size %u", hdev->name, rp->status, rp->size);
+
+ if (rp->status)
+ return;
+
+ hdev->le_resolv_list_size = rp->size;
+}
+
static void hci_cc_le_read_max_data_len(struct hci_dev *hdev,
struct sk_buff *skb)
{
@@ -3015,6 +3029,10 @@ static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb,
hci_cc_le_write_def_data_len(hdev, skb);
break;
+ case HCI_OP_LE_READ_RESOLV_LIST_SIZE:
+ hci_cc_le_read_resolv_list_size(hdev, skb);
+ break;
+
case HCI_OP_LE_READ_MAX_DATA_LEN:
hci_cc_le_read_max_data_len(hdev, skb);
break;
--
1.9.1
--
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