Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

samples: bluetooth: encrypt throughput sample #12265

Merged
merged 1 commit into from
Nov 8, 2023
Merged

samples: bluetooth: encrypt throughput sample #12265

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
5 changes: 5 additions & 0 deletions doc/nrf/releases_and_maturity/releases/release-notes-changelog.rst
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -288,6 +288,11 @@ Bluetooth samples

* Updated by disabling the :kconfig:option:`CONFIG_BT_SETTINGS_CCC_LAZY_LOADING` Kconfig option as a workaround fix for the `Zephyr issue #61033`_.

* :ref:`ble_throughput` sample:

* Enabled encryption in the sample.
The measured throughput is calculated over the encrypted data, which is how most of the Bluetooth products use this protocol.

Bluetooth mesh samples
----------------------

Expand Down
36 changes: 32 additions & 4 deletions samples/bluetooth/throughput/src/main.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -29,8 +29,8 @@

#define DEVICE_NAME CONFIG_BT_DEVICE_NAME
#define DEVICE_NAME_LEN (sizeof(DEVICE_NAME) - 1)
#define INTERVAL_MIN 0x140 /* 320 units, 400 ms */
#define INTERVAL_MAX 0x140 /* 320 units, 400 ms */
#define INTERVAL_MIN 0x6 /* 6 units, 7.5 ms, only used to setup connection */
#define INTERVAL_MAX 0x6 /* 6 units, 7.5 ms, only used to setup connection */
Copy link
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

is this to get the data length update instant faster?

Copy link
Contributor Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

yes, and encrypting the link faster on initial connection.


#define THROUGHPUT_CONFIG_TIMEOUT K_SECONDS(20)

Expand Down Expand Up @@ -205,12 +205,34 @@ static void connected(struct bt_conn *conn, uint8_t hci_err)
info.role == BT_CONN_ROLE_CENTRAL ? "central" : "peripheral");
printk("Conn. interval is %u units\n", info.le.interval);

if (info.role == BT_CONN_ROLE_PERIPHERAL) {
err = bt_conn_set_security(conn, BT_SECURITY_L2);
if (err) {
printk("Failed to set security: %d\n", err);
}
}
}

void security_changed(struct bt_conn *conn, bt_security_t level,
enum bt_security_err security_err)
{
printk("Security changed: level %i, err: %i\n", level, security_err);

if (security_err != 0) {
printk("Failed to encrypt link\n");
bt_conn_disconnect(conn, BT_HCI_ERR_PAIRING_NOT_SUPPORTED);
return;
}

struct bt_conn_info info = {0};
int err;

err = bt_conn_get_info(default_conn, &info);
if (info.role == BT_CONN_ROLE_CENTRAL) {
err = bt_gatt_dm_start(default_conn,
BT_UUID_THROUGHPUT,
&discovery_cb,
&throughput);

if (err) {
printk("Discover failed (err %d)\n", err);
}
Expand Down Expand Up @@ -297,6 +319,11 @@ static void disconnected(struct bt_conn *conn, uint8_t reason)
return;
}

err = bt_unpair(info.id, info.le.remote);
if (err) {
printk("Cannot unpair peer (err %d)", err);
}

/* Re-connect using same roles */
if (info.role == BT_CONN_ROLE_CENTRAL) {
scan_start();
Expand Down Expand Up @@ -627,7 +654,8 @@ BT_CONN_CB_DEFINE(conn_callbacks) = {
.le_param_req = le_param_req,
.le_param_updated = le_param_updated,
.le_phy_updated = le_phy_updated,
.le_data_len_updated = le_data_length_updated
.le_data_len_updated = le_data_length_updated,
.security_changed = security_changed
};

int main(void)
Expand Down
Loading