LinuxLists.cc - [PATCH] [v5]Add support for LE ping feature

2019-04-24 08:08:45

Subject: [PATCH] [v5]Add support for LE ping feature

From: Spoorthi Ravishankar Koppad <[email protected]>

Changes made to add HCI Write Authenticated Payload timeout
command for LE Ping feature.
As per the Core Specification 5.0 Volume 2 Part E Section 7.3.94,
the following code changes implements
HCI Write Authenticated Payload timeout command for LE Ping feature.

Signed-off-by: Spoorthi Ravishankar Koppad <[email protected]>
---
include/net/bluetooth/hci.h | 10 ++++++++++
include/net/bluetooth/hci_core.h | 1 +
net/bluetooth/hci_core.c | 1 +
net/bluetooth/hci_debugfs.c | 29 +++++++++++++++++++++++++++
net/bluetooth/hci_event.c | 42 ++++++++++++++++++++++++++++++++++++++++
5 files changed, 83 insertions(+)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index c36dc1e..366d2c7 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -1130,6 +1130,16 @@ struct hci_cp_write_sc_support {
__u8 support;
} __packed;

+#define HCI_OP_WRITE_AUTH_PAYLOAD_TO 0x0c7c
+struct hci_cp_write_auth_payload_to {
+ __le16 handle;
+ __le16 timeout;
+} __packed;
+struct hci_rp_write_auth_payload_to {
+ __u8 status;
+ __le16 handle;
+} __packed;
+
#define HCI_OP_READ_LOCAL_OOB_EXT_DATA 0x0c7d
struct hci_rp_read_local_oob_ext_data {
__u8 status;
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index e5ea633..57ec424 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -421,6 +421,7 @@ struct hci_dev {
__u32 rpa_timeout;
struct delayed_work rpa_expired;
bdaddr_t rpa;
+ __u16 auth_payload_timeout;

#if IS_ENABLED(CONFIG_BT_LEDS)
struct led_trigger *power_led;
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 7352fe8..402bbf9 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -3147,6 +3147,7 @@ struct hci_dev *hci_alloc_dev(void)
hdev->le_max_tx_time = 0x0148;
hdev->le_max_rx_len = 0x001b;
hdev->le_max_rx_time = 0x0148;
+ hdev->auth_payload_timeout = 0x0bb8;
hdev->le_max_key_size = SMP_MAX_ENC_KEY_SIZE;
hdev->le_min_key_size = SMP_MIN_ENC_KEY_SIZE;
hdev->le_tx_def_phys = HCI_LE_SET_PHY_1M;
diff --git a/net/bluetooth/hci_debugfs.c b/net/bluetooth/hci_debugfs.c
index 51f5b1e..930f01f 100644
--- a/net/bluetooth/hci_debugfs.c
+++ b/net/bluetooth/hci_debugfs.c
@@ -941,6 +941,33 @@ static int adv_max_interval_get(void *data, u64 *val)
DEFINE_SIMPLE_ATTRIBUTE(adv_max_interval_fops, adv_max_interval_get,
adv_max_interval_set, "%llu\n");

+static int auth_payload_timeout_set(void *data, u64 val)
+{
+ struct hci_dev *hdev = data;
+
+ if (val < 0x0001 || val > 0xffff)
+ return -EINVAL;
+ hci_dev_lock(hdev);
+ hdev->auth_payload_timeout = val;
+ hci_dev_unlock(hdev);
+
+ return 0;
+}
+
+static int auth_payload_timeout_get(void *data, u64 *val)
+{
+ struct hci_dev *hdev = data;
+
+ hci_dev_lock(hdev);
+ *val = hdev->auth_payload_timeout;
+ hci_dev_unlock(hdev);
+ return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(auth_payload_timeout_fops,
+ auth_payload_timeout_get,
+ auth_payload_timeout_set, "%llu\n");
+
DEFINE_QUIRK_ATTRIBUTE(quirk_strict_duplicate_filter,
HCI_QUIRK_STRICT_DUPLICATE_FILTER);
DEFINE_QUIRK_ATTRIBUTE(quirk_simultaneous_discovery,
@@ -995,6 +1022,8 @@ void hci_debugfs_create_le(struct hci_dev *hdev)
debugfs_create_u16("discov_interleaved_timeout", 0644, hdev->debugfs,
&hdev->discov_interleaved_timeout);

+ debugfs_create_file("auth_payload_timeout", 0644, hdev->debugfs, hdev,
+ &auth_payload_timeout_fops);
debugfs_create_file("quirk_strict_duplicate_filter", 0644,
hdev->debugfs, hdev,
&quirk_strict_duplicate_filter_fops);
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index ac2826c..ecc5ea1 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -579,6 +579,25 @@ static void hci_cc_read_local_commands(struct hci_dev *hdev,
memcpy(hdev->commands, rp->commands, sizeof(hdev->commands));
}

+static void hci_cc_write_auth_payload_timeout(struct hci_dev *hdev,
+ struct sk_buff *skb)
+{
+ struct hci_rp_write_auth_payload_to *rp = (void *)skb->data;
+ struct hci_conn *conn;
+
+ BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
+ if (rp->status)
+ return;
+ hci_dev_lock(hdev);
+
+ conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
+ if (conn)
+ set_bit(HCI_CONN_AUTH_PAYLOAD_TIMEOUT, &conn->flags);
+
+ hci_dev_unlock(hdev);
+}
+
+
static void hci_cc_read_local_features(struct hci_dev *hdev,
struct sk_buff *skb)
{
@@ -2975,6 +2994,25 @@ static void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
goto unlock;
}

+ /* Set the default Authenticated Payload Timeout after
+ * an LE Link is established. As per Core Spec v5.0, Vol 2, Part B
+ * Section 3.3, the HCI command WRITE_AUTH_PAYLOAD_TIMEOUT should be
+ * sent when the link is active and Encryption is enabled, the conn
+ * type can be either LE or ACL and controller must support LMP Ping.
+ * Ensure for AES-CCM encryption as well.
+ */
+ if ((conn->type == LE_LINK || conn->type == ACL_LINK) &&
+ lmp_ping_capable(hdev) && (hdev->le_features[0] & HCI_LE_PING)
+ test_bit(HCI_CONN_ENCRYPT, &conn->flags) &&
+ test_bit(HCI_CONN_AES_CCM, &conn->flags)) {
+ struct hci_cp_write_auth_payload_to cp;
+
+ cp.handle = cpu_to_le16(conn->handle);
+ cp.timeout = cpu_to_le16(hdev->auth_payload_timeout);
+ hci_send_cmd(conn->hdev, HCI_OP_WRITE_AUTH_PAYLOAD_TO,
+ sizeof(cp), &cp);
+ }
+
notify:
if (conn->state == BT_CONFIG) {
if (!ev->status)
@@ -3178,6 +3216,10 @@ static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb,
hci_cc_read_local_commands(hdev, skb);
break;

+ case HCI_OP_WRITE_AUTH_PAYLOAD_TO:
+ hci_cc_write_auth_payload_timeout(hdev, skb);
+ break;
+
case HCI_OP_READ_LOCAL_FEATURES:
hci_cc_read_local_features(hdev, skb);
break;
--
1.9.1

2019-04-24 08:11:25

by Marcel Holtmann

[permalink] [raw]

Subject: Re: [PATCH] [v5]Add support for LE ping feature

Hi Spoorthi,

> Changes made to add HCI Write Authenticated Payload timeout
> command for LE Ping feature.
> As per the Core Specification 5.0 Volume 2 Part E Section 7.3.94,
> the following code changes implements
> HCI Write Authenticated Payload timeout command for LE Ping feature.
>
> Signed-off-by: Spoorthi Ravishankar Koppad <[email protected]>
> ---
> include/net/bluetooth/hci.h | 10 ++++++++++
> include/net/bluetooth/hci_core.h | 1 +
> net/bluetooth/hci_core.c | 1 +
> net/bluetooth/hci_debugfs.c | 29 +++++++++++++++++++++++++++
> net/bluetooth/hci_event.c | 42 ++++++++++++++++++++++++++++++++++++++++
> 5 files changed, 83 insertions(+)
>
> diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
> index c36dc1e..366d2c7 100644
> --- a/include/net/bluetooth/hci.h
> +++ b/include/net/bluetooth/hci.h
> @@ -1130,6 +1130,16 @@ struct hci_cp_write_sc_support {
> __u8 support;
> } __packed;
>
> +#define HCI_OP_WRITE_AUTH_PAYLOAD_TO 0x0c7c
> +struct hci_cp_write_auth_payload_to {
> + __le16 handle;
> + __le16 timeout;
> +} __packed;
> +struct hci_rp_write_auth_payload_to {
> + __u8 status;
> + __le16 handle;
> +} __packed;
> +
> #define HCI_OP_READ_LOCAL_OOB_EXT_DATA 0x0c7d
> struct hci_rp_read_local_oob_ext_data {
> __u8 status;
> diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
> index e5ea633..57ec424 100644
> --- a/include/net/bluetooth/hci_core.h
> +++ b/include/net/bluetooth/hci_core.h
> @@ -421,6 +421,7 @@ struct hci_dev {
> __u32 rpa_timeout;
> struct delayed_work rpa_expired;
> bdaddr_t rpa;
> + __u16 auth_payload_timeout;
>
> #if IS_ENABLED(CONFIG_BT_LEDS)
> struct led_trigger *power_led;
> diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
> index 7352fe8..402bbf9 100644
> --- a/net/bluetooth/hci_core.c
> +++ b/net/bluetooth/hci_core.c
> @@ -3147,6 +3147,7 @@ struct hci_dev *hci_alloc_dev(void)
> hdev->le_max_tx_time = 0x0148;
> hdev->le_max_rx_len = 0x001b;
> hdev->le_max_rx_time = 0x0148;
> + hdev->auth_payload_timeout = 0x0bb8;
> hdev->le_max_key_size = SMP_MAX_ENC_KEY_SIZE;
> hdev->le_min_key_size = SMP_MIN_ENC_KEY_SIZE;
> hdev->le_tx_def_phys = HCI_LE_SET_PHY_1M;
> diff --git a/net/bluetooth/hci_debugfs.c b/net/bluetooth/hci_debugfs.c
> index 51f5b1e..930f01f 100644
> --- a/net/bluetooth/hci_debugfs.c
> +++ b/net/bluetooth/hci_debugfs.c
> @@ -941,6 +941,33 @@ static int adv_max_interval_get(void *data, u64 *val)
> DEFINE_SIMPLE_ATTRIBUTE(adv_max_interval_fops, adv_max_interval_get,
> adv_max_interval_set, "%llu\n");
>
> +static int auth_payload_timeout_set(void *data, u64 val)
> +{
> + struct hci_dev *hdev = data;
> +
> + if (val < 0x0001 || val > 0xffff)
> + return -EINVAL;
> + hci_dev_lock(hdev);
> + hdev->auth_payload_timeout = val;
> + hci_dev_unlock(hdev);
> +
> + return 0;
> +}
> +
> +static int auth_payload_timeout_get(void *data, u64 *val)
> +{
> + struct hci_dev *hdev = data;
> +
> + hci_dev_lock(hdev);
> + *val = hdev->auth_payload_timeout;
> + hci_dev_unlock(hdev);
> + return 0;
> +}
> +
> +DEFINE_SIMPLE_ATTRIBUTE(auth_payload_timeout_fops,
> + auth_payload_timeout_get,
> + auth_payload_timeout_set, "%llu\n");
> +
> DEFINE_QUIRK_ATTRIBUTE(quirk_strict_duplicate_filter,
> HCI_QUIRK_STRICT_DUPLICATE_FILTER);
> DEFINE_QUIRK_ATTRIBUTE(quirk_simultaneous_discovery,
> @@ -995,6 +1022,8 @@ void hci_debugfs_create_le(struct hci_dev *hdev)
> debugfs_create_u16("discov_interleaved_timeout", 0644, hdev->debugfs,
> &hdev->discov_interleaved_timeout);
>
> + debugfs_create_file("auth_payload_timeout", 0644, hdev->debugfs, hdev,
> + &auth_payload_timeout_fops);
> debugfs_create_file("quirk_strict_duplicate_filter", 0644,
> hdev->debugfs, hdev,
> &quirk_strict_duplicate_filter_fops);
> diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
> index ac2826c..ecc5ea1 100644
> --- a/net/bluetooth/hci_event.c
> +++ b/net/bluetooth/hci_event.c
> @@ -579,6 +579,25 @@ static void hci_cc_read_local_commands(struct hci_dev *hdev,
> memcpy(hdev->commands, rp->commands, sizeof(hdev->commands));
> }
>
> +static void hci_cc_write_auth_payload_timeout(struct hci_dev *hdev,
> + struct sk_buff *skb)
> +{
> + struct hci_rp_write_auth_payload_to *rp = (void *)skb->data;
> + struct hci_conn *conn;
> +
> + BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
> + if (rp->status)
> + return;
> + hci_dev_lock(hdev);
> +
> + conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
> + if (conn)
> + set_bit(HCI_CONN_AUTH_PAYLOAD_TIMEOUT, &conn->flags);

you totally ignored my comment here.

> +
> + hci_dev_unlock(hdev);
> +}
> +
> +
> static void hci_cc_read_local_features(struct hci_dev *hdev,
> struct sk_buff *skb)
> {
> @@ -2975,6 +2994,25 @@ static void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
> goto unlock;
> }
>
> + /* Set the default Authenticated Payload Timeout after
> + * an LE Link is established. As per Core Spec v5.0, Vol 2, Part B
> + * Section 3.3, the HCI command WRITE_AUTH_PAYLOAD_TIMEOUT should be
> + * sent when the link is active and Encryption is enabled, the conn
> + * type can be either LE or ACL and controller must support LMP Ping.
> + * Ensure for AES-CCM encryption as well.
> + */
> + if ((conn->type == LE_LINK || conn->type == ACL_LINK) &&
> + lmp_ping_capable(hdev) && (hdev->le_features[0] & HCI_LE_PING)
> + test_bit(HCI_CONN_ENCRYPT, &conn->flags) &&
> + test_bit(HCI_CONN_AES_CCM, &conn->flags)) {
> + struct hci_cp_write_auth_payload_to cp;

This is a) wrongly indented and b) not even compile tested.

> +
> + cp.handle = cpu_to_le16(conn->handle);
> + cp.timeout = cpu_to_le16(hdev->auth_payload_timeout);
> + hci_send_cmd(conn->hdev, HCI_OP_WRITE_AUTH_PAYLOAD_TO,
> + sizeof(cp), &cp);
> + }
> +
> notify:
> if (conn->state == BT_CONFIG) {
> if (!ev->status)
> @@ -3178,6 +3216,10 @@ static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb,
> hci_cc_read_local_commands(hdev, skb);
> break;
>
> + case HCI_OP_WRITE_AUTH_PAYLOAD_TO:
> + hci_cc_write_auth_payload_timeout(hdev, skb);
> + break;
> +
> case HCI_OP_READ_LOCAL_FEATURES:
> hci_cc_read_local_features(hdev, skb);
> break;

Regards

Marcel

2019-04-25 13:47:54

by kernel test robot

[permalink] [raw]

Subject: Re: [PATCH] [v5]Add support for LE ping feature

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2019-04-25 13:51:11

by kernel test robot

[permalink] [raw]

Subject: Re: [PATCH] [v5]Add support for LE ping feature

Hi SpoorthiX,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on bluetooth-next/master]
[also build test ERROR on v5.1-rc6 next-20190424]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/SpoorthiX-K/Add-support-for-LE-ping-feature/20190425-184628
base: https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git master
config: xtensa-allyesconfig (attached as .config)
compiler: xtensa-linux-gcc (GCC) 8.1.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
GCC_VERSION=8.1.0 make.cross ARCH=xtensa

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <[email protected]>

All errors (new ones prefixed by >>):

net//bluetooth/hci_event.c: In function 'hci_cc_write_auth_payload_timeout':
net//bluetooth/hci_event.c:595:11: error: 'HCI_CONN_AUTH_PAYLOAD_TIMEOUT' undeclared (first use in this function); did you mean 'HCI_CONN_AUTH_FAILURE'?
set_bit(HCI_CONN_AUTH_PAYLOAD_TIMEOUT, &conn->flags);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
HCI_CONN_AUTH_FAILURE
net//bluetooth/hci_event.c:595:11: note: each undeclared identifier is reported only once for each function it appears in
net//bluetooth/hci_event.c: In function 'hci_encrypt_change_evt':
>> net//bluetooth/hci_event.c:3005:68: error: expected ')' before 'test_bit'
lmp_ping_capable(hdev) && (hdev->le_features[0] & HCI_LE_PING)
^
)
test_bit(HCI_CONN_ENCRYPT, &conn->flags) &&
~~~~~~~~
net//bluetooth/hci_event.c:3004:5: note: to match this '('
if ((conn->type == LE_LINK || conn->type == ACL_LINK) &&
^

vim +3005 net//bluetooth/hci_event.c

2904
2905 static void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
2906 {
2907 struct hci_ev_encrypt_change *ev = (void *) skb->data;
2908 struct hci_conn *conn;
2909
2910 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
2911
2912 hci_dev_lock(hdev);
2913
2914 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2915 if (!conn)
2916 goto unlock;
2917
2918 if (!ev->status) {
2919 if (ev->encrypt) {
2920 /* Encryption implies authentication */
2921 set_bit(HCI_CONN_AUTH, &conn->flags);
2922 set_bit(HCI_CONN_ENCRYPT, &conn->flags);
2923 conn->sec_level = conn->pending_sec_level;
2924
2925 /* P-256 authentication key implies FIPS */
2926 if (conn->key_type == HCI_LK_AUTH_COMBINATION_P256)
2927 set_bit(HCI_CONN_FIPS, &conn->flags);
2928
2929 if ((conn->type == ACL_LINK && ev->encrypt == 0x02) ||
2930 conn->type == LE_LINK)
2931 set_bit(HCI_CONN_AES_CCM, &conn->flags);
2932 } else {
2933 clear_bit(HCI_CONN_ENCRYPT, &conn->flags);
2934 clear_bit(HCI_CONN_AES_CCM, &conn->flags);
2935 }
2936 }
2937
2938 /* We should disregard the current RPA and generate a new one
2939 * whenever the encryption procedure fails.
2940 */
2941 if (ev->status && conn->type == LE_LINK) {
2942 hci_dev_set_flag(hdev, HCI_RPA_EXPIRED);
2943 hci_adv_instances_set_rpa_expired(hdev, true);
2944 }
2945
2946 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
2947
2948 if (ev->status && conn->state == BT_CONNECTED) {
2949 if (ev->status == HCI_ERROR_PIN_OR_KEY_MISSING)
2950 set_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
2951
2952 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
2953 hci_conn_drop(conn);
2954 goto unlock;
2955 }
2956
2957 /* In Secure Connections Only mode, do not allow any connections
2958 * that are not encrypted with AES-CCM using a P-256 authenticated
2959 * combination key.
2960 */
2961 if (hci_dev_test_flag(hdev, HCI_SC_ONLY) &&
2962 (!test_bit(HCI_CONN_AES_CCM, &conn->flags) ||
2963 conn->key_type != HCI_LK_AUTH_COMBINATION_P256)) {
2964 hci_connect_cfm(conn, HCI_ERROR_AUTH_FAILURE);
2965 hci_conn_drop(conn);
2966 goto unlock;
2967 }
2968
2969 /* Try reading the encryption key size for encrypted ACL links */
2970 if (!ev->status && ev->encrypt && conn->type == ACL_LINK) {
2971 struct hci_cp_read_enc_key_size cp;
2972 struct hci_request req;
2973
2974 /* Only send HCI_Read_Encryption_Key_Size if the
2975 * controller really supports it. If it doesn't, assume
2976 * the default size (16).
2977 */
2978 if (!(hdev->commands[20] & 0x10)) {
2979 conn->enc_key_size = HCI_LINK_KEY_SIZE;
2980 goto notify;
2981 }
2982
2983 hci_req_init(&req, hdev);
2984
2985 cp.handle = cpu_to_le16(conn->handle);
2986 hci_req_add(&req, HCI_OP_READ_ENC_KEY_SIZE, sizeof(cp), &cp);
2987
2988 if (hci_req_run_skb(&req, read_enc_key_size_complete)) {
2989 bt_dev_err(hdev, "sending read key size failed");
2990 conn->enc_key_size = HCI_LINK_KEY_SIZE;
2991 goto notify;
2992 }
2993
2994 goto unlock;
2995 }
2996
2997 /* Set the default Authenticated Payload Timeout after
2998 * an LE Link is established. As per Core Spec v5.0, Vol 2, Part B
2999 * Section 3.3, the HCI command WRITE_AUTH_PAYLOAD_TIMEOUT should be
3000 * sent when the link is active and Encryption is enabled, the conn
3001 * type can be either LE or ACL and controller must support LMP Ping.
3002 * Ensure for AES-CCM encryption as well.
3003 */
3004 if ((conn->type == LE_LINK || conn->type == ACL_LINK) &&
> 3005 lmp_ping_capable(hdev) && (hdev->le_features[0] & HCI_LE_PING)
3006 test_bit(HCI_CONN_ENCRYPT, &conn->flags) &&
3007 test_bit(HCI_CONN_AES_CCM, &conn->flags)) {
3008 struct hci_cp_write_auth_payload_to cp;
3009
3010 cp.handle = cpu_to_le16(conn->handle);
3011 cp.timeout = cpu_to_le16(hdev->auth_payload_timeout);
3012 hci_send_cmd(conn->hdev, HCI_OP_WRITE_AUTH_PAYLOAD_TO,
3013 sizeof(cp), &cp);
3014 }
3015
3016 notify:
3017 if (conn->state == BT_CONFIG) {
3018 if (!ev->status)
3019 conn->state = BT_CONNECTED;
3020
3021 hci_connect_cfm(conn, ev->status);
3022 hci_conn_drop(conn);
3023 } else
3024 hci_encrypt_cfm(conn, ev->status, ev->encrypt);
3025
3026 unlock:
3027 hci_dev_unlock(hdev);
3028 }
3029

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