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btp_gap.c
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/* gap.c - Bluetooth GAP Tester */
/*
* Copyright (c) 2015-2016 Intel Corporation
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <errno.h>
#include <stdint.h>
#include <string.h>
#include <zephyr/autoconf.h>
#include <zephyr/bluetooth/addr.h>
#include <zephyr/bluetooth/att.h>
#include <zephyr/bluetooth/audio/bap.h>
#include <zephyr/bluetooth/bluetooth.h>
#include <zephyr/bluetooth/conn.h>
#include <zephyr/bluetooth/gatt.h>
#include <zephyr/bluetooth/hci.h>
#include <zephyr/bluetooth/gap.h>
#include <zephyr/bluetooth/hci_types.h>
#include <zephyr/bluetooth/uuid.h>
#include <zephyr/logging/log.h>
#include <zephyr/sys/atomic.h>
#include <zephyr/sys/util.h>
#include <zephyr/sys/util_macro.h>
#include <zephyr/toolchain.h>
#include <zephyr/types.h>
#include <zephyr/sys/byteorder.h>
#include <zephyr/net_buf.h>
#include <hci_core.h>
#include "btp/btp.h"
#define LOG_MODULE_NAME bttester_gap
LOG_MODULE_REGISTER(LOG_MODULE_NAME, CONFIG_BTTESTER_LOG_LEVEL);
#define CONTROLLER_NAME "btp_tester"
#define BT_LE_AD_DISCOV_MASK (BT_LE_AD_LIMITED | BT_LE_AD_GENERAL)
#if defined(CONFIG_BT_EXT_ADV)
#define ADV_BUF_LEN (sizeof(struct btp_gap_device_found_ev) + 2 * CONFIG_BT_EXT_SCAN_BUF_SIZE)
#else
#define ADV_BUF_LEN (sizeof(struct btp_gap_device_found_ev) + 2 * 31)
#endif
static atomic_t current_settings;
struct bt_conn_auth_cb cb;
static uint8_t oob_legacy_tk[16] = { 0 };
static bool filter_list_in_use;
static struct bt_le_oob oob_sc_local = { 0 };
static struct bt_le_oob oob_sc_remote = { 0 };
/* connection parameters for rejection test */
#define REJECT_INTERVAL_MIN 0x0C80
#define REJECT_INTERVAL_MAX 0x0C80
#define REJECT_LATENCY 0x0000
#define REJECT_SUPERVISION_TIMEOUT 0x0C80
static struct {
bt_addr_le_t addr;
bool supported;
} cars[CONFIG_BT_MAX_PAIRED];
static uint8_t read_car_cb(struct bt_conn *conn, uint8_t err,
struct bt_gatt_read_params *params, const void *data,
uint16_t length)
{
struct bt_conn_info info;
bool supported = false;
if (!err && data && length == 1) {
const uint8_t *tmp = data;
/* only 0 or 1 are valid values */
if (tmp[0] == 1) {
supported = true;
}
}
bt_conn_get_info(conn, &info);
for (int i = 0; i < CONFIG_BT_MAX_PAIRED; i++) {
if (bt_addr_le_eq(info.le.dst, &cars[i].addr)) {
cars[i].supported = supported;
break;
}
}
return BT_GATT_ITER_STOP;
}
static struct bt_gatt_read_params read_car_params = {
.func = read_car_cb,
.by_uuid.uuid = BT_UUID_CENTRAL_ADDR_RES,
.by_uuid.start_handle = BT_ATT_FIRST_ATTRIBUTE_HANDLE,
.by_uuid.end_handle = BT_ATT_LAST_ATTRIBUTE_HANDLE,
};
static void le_connected(struct bt_conn *conn, uint8_t err)
{
struct btp_gap_device_connected_ev ev;
char addr_str[BT_ADDR_LE_STR_LEN];
struct bt_conn_info info;
(void)bt_addr_le_to_str(bt_conn_get_dst(conn), addr_str, sizeof(addr_str));
LOG_DBG("%s: 0x%02x", addr_str, err);
if (err) {
return;
}
bt_conn_get_info(conn, &info);
bt_addr_le_copy(&ev.address, info.le.dst);
ev.interval = sys_cpu_to_le16(info.le.interval);
ev.latency = sys_cpu_to_le16(info.le.latency);
ev.timeout = sys_cpu_to_le16(info.le.timeout);
tester_event(BTP_SERVICE_ID_GAP, BTP_GAP_EV_DEVICE_CONNECTED, &ev, sizeof(ev));
if (info.role == BT_CONN_ROLE_PERIPHERAL) {
struct btp_gap_new_settings_ev sev;
atomic_clear_bit(¤t_settings, BTP_GAP_SETTINGS_ADVERTISING);
sev.current_settings = sys_cpu_to_le32(current_settings);
tester_event(BTP_SERVICE_ID_GAP, BTP_GAP_EV_NEW_SETTINGS, &sev, sizeof(sev));
}
}
static void le_disconnected(struct bt_conn *conn, uint8_t reason)
{
struct btp_gap_device_disconnected_ev ev;
const bt_addr_le_t *addr = bt_conn_get_dst(conn);
char addr_str[BT_ADDR_LE_STR_LEN];
(void)bt_addr_le_to_str(bt_conn_get_dst(conn), addr_str, sizeof(addr_str));
LOG_DBG("%s: 0x%02x", addr_str, reason);
bt_addr_le_copy(&ev.address, addr);
tester_event(BTP_SERVICE_ID_GAP, BTP_GAP_EV_DEVICE_DISCONNECTED, &ev, sizeof(ev));
}
static void le_identity_resolved(struct bt_conn *conn, const bt_addr_le_t *rpa,
const bt_addr_le_t *identity)
{
struct btp_gap_identity_resolved_ev ev;
bt_addr_le_copy(&ev.address, rpa);
bt_addr_le_copy(&ev.identity_address, identity);
tester_event(BTP_SERVICE_ID_GAP, BTP_GAP_EV_IDENTITY_RESOLVED, &ev, sizeof(ev));
}
static void le_param_updated(struct bt_conn *conn, uint16_t interval,
uint16_t latency, uint16_t timeout)
{
struct btp_gap_conn_param_update_ev ev;
const bt_addr_le_t *addr = bt_conn_get_dst(conn);
bt_addr_le_copy(&ev.address, addr);
ev.interval = sys_cpu_to_le16(interval);
ev.latency = sys_cpu_to_le16(latency);
ev.timeout = sys_cpu_to_le16(timeout);
tester_event(BTP_SERVICE_ID_GAP, BTP_GAP_EV_CONN_PARAM_UPDATE, &ev, sizeof(ev));
}
static bool le_param_req(struct bt_conn *conn, struct bt_le_conn_param *param)
{
/* reject update if all parameters match reject pattern */
if ((param->interval_min == REJECT_INTERVAL_MIN) &&
(param->interval_max == REJECT_INTERVAL_MAX) &&
(param->latency == REJECT_LATENCY) &&
(param->timeout == REJECT_SUPERVISION_TIMEOUT)) {
return false;
}
return true;
}
static void le_security_changed(struct bt_conn *conn, bt_security_t level,
enum bt_security_err err)
{
const bt_addr_le_t *addr = bt_conn_get_dst(conn);
struct btp_gap_sec_level_changed_ev sec_ev;
struct btp_gap_bond_lost_ev bond_ev;
struct bt_conn_info info;
switch (err) {
case BT_SECURITY_ERR_SUCCESS:
bt_addr_le_copy(&sec_ev.address, addr);
/* enum matches BTP values */
sec_ev.sec_level = level;
tester_event(BTP_SERVICE_ID_GAP, BTP_GAP_EV_SEC_LEVEL_CHANGED,
&sec_ev, sizeof(sec_ev));
break;
case BT_SECURITY_ERR_PIN_OR_KEY_MISSING:
/* for central role this means that peer have no LTK when we
* started encryption procedure
*
* This means bond is lost and we restart pairing to re-bond
*/
if (bt_conn_get_info(conn, &info) == 0 &&
info.role == BT_CONN_ROLE_CENTRAL) {
LOG_DBG("Bond lost");
bt_addr_le_copy(&bond_ev.address, addr);
tester_event(BTP_SERVICE_ID_GAP, BTP_GAP_EV_BOND_LOST,
&bond_ev, sizeof(bond_ev));
(void)bt_conn_set_security(conn, BT_SECURITY_L2 | BT_SECURITY_FORCE_PAIR);
}
break;
default:
break;
}
}
static struct bt_conn_cb conn_callbacks = {
.connected = le_connected,
.disconnected = le_disconnected,
.identity_resolved = le_identity_resolved,
.le_param_updated = le_param_updated,
.le_param_req = le_param_req,
.security_changed = le_security_changed,
};
static uint8_t supported_commands(const void *cmd, uint16_t cmd_len,
void *rsp, uint16_t *rsp_len)
{
struct btp_gap_read_supported_commands_rp *rp = rsp;
*rsp_len = tester_supported_commands(BTP_SERVICE_ID_GAP, rp->data);
*rsp_len += sizeof(*rp);
return BTP_STATUS_SUCCESS;
}
static uint8_t controller_index_list(const void *cmd, uint16_t cmd_len,
void *rsp, uint16_t *rsp_len)
{
struct btp_gap_read_controller_index_list_rp *rp = rsp;
rp->num = 1U;
rp->index[0] = BTP_INDEX;
*rsp_len = sizeof(*rp) + 1;
return BTP_STATUS_SUCCESS;
}
static uint8_t controller_info(const void *cmd, uint16_t cmd_len,
void *rsp, uint16_t *rsp_len)
{
struct btp_gap_read_controller_info_rp *rp = rsp;
uint32_t supported_settings;
struct bt_le_oob oob_local = { 0 };
bt_le_oob_get_local(BT_ID_DEFAULT, &oob_local);
bt_addr_copy(&rp->address, &oob_local.addr.a);
/*
* Re-use the oob data read here in get_oob_sc_local_data()
*/
if (!IS_ENABLED(CONFIG_BT_SMP_OOB_LEGACY_PAIR_ONLY)) {
oob_sc_local = oob_local;
}
/*
* If privacy is used, the device uses random type address, otherwise
* static random or public type address is used.
*/
if (!IS_ENABLED(CONFIG_BT_PRIVACY)) {
if (oob_local.addr.type == BT_ADDR_LE_RANDOM) {
atomic_set_bit(¤t_settings, BTP_GAP_SETTINGS_STATIC_ADDRESS);
}
}
supported_settings = BIT(BTP_GAP_SETTINGS_POWERED);
supported_settings |= BIT(BTP_GAP_SETTINGS_CONNECTABLE);
supported_settings |= BIT(BTP_GAP_SETTINGS_BONDABLE);
supported_settings |= BIT(BTP_GAP_SETTINGS_LE);
supported_settings |= BIT(BTP_GAP_SETTINGS_ADVERTISING);
supported_settings |= BIT(BTP_GAP_SETTINGS_EXTENDED_ADVERTISING);
rp->supported_settings = sys_cpu_to_le32(supported_settings);
rp->current_settings = sys_cpu_to_le32(current_settings);
memcpy(rp->name, CONTROLLER_NAME, sizeof(CONTROLLER_NAME));
*rsp_len = sizeof(*rp);
return BTP_STATUS_SUCCESS;
}
static const char *oob_config_str(int oob_config)
{
if (!IS_ENABLED(CONFIG_BT_SMP_OOB_LEGACY_PAIR_ONLY)) {
return "no";
}
switch (oob_config) {
case BT_CONN_OOB_LOCAL_ONLY:
return "Local";
case BT_CONN_OOB_REMOTE_ONLY:
return "Remote";
case BT_CONN_OOB_BOTH_PEERS:
return "Local and Remote";
case BT_CONN_OOB_NO_DATA:
default:
return "no";
}
}
static void oob_data_request(struct bt_conn *conn,
struct bt_conn_oob_info *oob_info)
{
struct bt_conn_info info;
int err = bt_conn_get_info(conn, &info);
if (err) {
return;
}
char addr[BT_ADDR_LE_STR_LEN];
bt_addr_le_to_str(info.le.dst, addr, sizeof(addr));
switch (oob_info->type) {
case BT_CONN_OOB_LE_SC:
{
if (IS_ENABLED(CONFIG_BT_SMP_OOB_LEGACY_PAIR_ONLY)) {
LOG_ERR("OOB LE SC not supported");
break;
}
LOG_DBG("Set %s OOB SC data for %s, ",
oob_config_str(oob_info->lesc.oob_config),
addr);
struct bt_le_oob_sc_data *oobd_local =
oob_info->lesc.oob_config != BT_CONN_OOB_REMOTE_ONLY ?
&oob_sc_local.le_sc_data :
NULL;
struct bt_le_oob_sc_data *oobd_remote =
oob_info->lesc.oob_config != BT_CONN_OOB_LOCAL_ONLY ?
&oob_sc_remote.le_sc_data :
NULL;
if (oobd_remote) {
/* Assume that oob_sc_remote
* corresponds to the currently connected peer
*/
bt_addr_le_copy(&oob_sc_remote.addr, info.le.remote);
}
if (oobd_local &&
!bt_addr_le_eq(info.le.local, &oob_sc_local.addr)) {
bt_addr_le_to_str(info.le.local, addr, sizeof(addr));
LOG_DBG("No OOB data available for local %s",
addr);
bt_conn_auth_cancel(conn);
return;
}
err = bt_le_oob_set_sc_data(conn, oobd_local, oobd_remote);
if (err) {
LOG_DBG("bt_le_oob_set_sc_data failed with: %d", err);
}
break;
}
case BT_CONN_OOB_LE_LEGACY:
if (IS_ENABLED(CONFIG_BT_SMP_SC_PAIR_ONLY)) {
LOG_ERR("OOB LE Legacy not supported");
break;
}
LOG_DBG("Legacy OOB TK requested from remote %s", addr);
err = bt_le_oob_set_legacy_tk(conn, oob_legacy_tk);
if (err < 0) {
LOG_ERR("Failed to set OOB TK: %d", err);
}
break;
default:
LOG_ERR("Unhandled OOB type %d", oob_info->type);
break;
}
}
#if !defined(CONFIG_BT_SMP_OOB_LEGACY_PAIR_ONLY)
static uint8_t get_oob_sc_local_data(const void *cmd, uint16_t cmd_len,
void *rsp, uint16_t *rsp_len)
{
struct btp_gap_oob_sc_get_local_data_rp *rp = rsp;
cb.oob_data_request = oob_data_request;
memcpy(rp->conf, &oob_sc_local.le_sc_data.c[0], sizeof(rp->conf));
memcpy(rp->rand, &oob_sc_local.le_sc_data.r[0], sizeof(rp->rand));
*rsp_len = sizeof(*rp);
return BTP_STATUS_SUCCESS;
}
static uint8_t set_oob_sc_remote_data(const void *cmd, uint16_t cmd_len,
void *rsp, uint16_t *rsp_len)
{
const struct btp_gap_oob_sc_set_remote_data_cmd *cp = cmd;
cb.oob_data_request = oob_data_request;
bt_le_oob_set_sc_flag(true);
/* Note that the .addr field
* will be set by the oob_data_request callback
*/
memcpy(&oob_sc_remote.le_sc_data.r[0], cp->rand,
sizeof(oob_sc_remote.le_sc_data.r));
memcpy(&oob_sc_remote.le_sc_data.c[0], cp->conf,
sizeof(oob_sc_remote.le_sc_data.c));
return BTP_STATUS_SUCCESS;
}
#endif /* !defined(CONFIG_BT_SMP_OOB_LEGACY_PAIR_ONLY) */
static uint8_t set_powered(const void *cmd, uint16_t cmd_len,
void *rsp, uint16_t *rsp_len)
{
const struct btp_gap_set_powered_cmd *cp = cmd;
struct btp_gap_set_powered_rp *rp = rsp;
int err;
if (cp->powered) {
err = bt_enable(NULL);
if (err < 0) {
LOG_ERR("Unable to enable Bluetooth: %d", err);
return BTP_STATUS_FAILED;
}
bt_conn_cb_register(&conn_callbacks);
atomic_set_bit(¤t_settings, BTP_GAP_SETTINGS_POWERED);
} else {
err = bt_disable();
if (err < 0) {
LOG_ERR("Unable to disable Bluetooth: %d", err);
return BTP_STATUS_FAILED;
}
bt_conn_cb_unregister(&conn_callbacks);
atomic_clear_bit(¤t_settings, BTP_GAP_SETTINGS_POWERED);
}
rp->current_settings = sys_cpu_to_le32(current_settings);
*rsp_len = sizeof(*rp);
return BTP_STATUS_SUCCESS;
}
static uint8_t set_connectable(const void *cmd, uint16_t cmd_len,
void *rsp, uint16_t *rsp_len)
{
const struct btp_gap_set_connectable_cmd *cp = cmd;
struct btp_gap_set_connectable_rp *rp = rsp;
if (cp->connectable) {
atomic_set_bit(¤t_settings, BTP_GAP_SETTINGS_CONNECTABLE);
} else {
atomic_clear_bit(¤t_settings, BTP_GAP_SETTINGS_CONNECTABLE);
}
rp->current_settings = sys_cpu_to_le32(current_settings);
*rsp_len = sizeof(*rp);
return BTP_STATUS_SUCCESS;
}
static uint8_t ad_flags = BT_LE_AD_NO_BREDR;
static struct bt_data ad[10] = {
BT_DATA(BT_DATA_FLAGS, &ad_flags, sizeof(ad_flags)),
};
static struct bt_data sd[10];
#if CONFIG_BT_EXT_ADV
static struct bt_le_ext_adv *ext_adv_sets[CONFIG_BT_EXT_ADV_MAX_ADV_SET];
#else
static struct bt_le_ext_adv *ext_adv_sets[1];
#endif
struct bt_le_ext_adv *tester_gap_ext_adv_get(uint8_t ext_adv_idx)
{
if (!IS_ENABLED(CONFIG_BT_EXT_ADV)) {
return NULL;
}
if (ext_adv_idx >= ARRAY_SIZE(ext_adv_sets)) {
LOG_ERR("Invalid ext_adv_id: %d", ext_adv_idx);
return NULL;
}
return ext_adv_sets[ext_adv_idx];
}
static int tester_gap_ext_adv_idx_free_get(void)
{
if (!IS_ENABLED(CONFIG_BT_EXT_ADV)) {
return -ENOTSUP;
}
for (int i = 0; i < ARRAY_SIZE(ext_adv_sets); i++) {
if (ext_adv_sets[i] == NULL) {
return i;
}
}
return -ENOMEM;
}
int tester_gap_start_ext_adv(struct bt_le_ext_adv *ext_adv)
{
if (!IS_ENABLED(CONFIG_BT_EXT_ADV)) {
return -ENOTSUP;
}
int err;
if (ext_adv == NULL) {
LOG_ERR("Invalid ext_adv");
return -EINVAL;
}
err = bt_le_ext_adv_start(ext_adv, BT_LE_EXT_ADV_START_DEFAULT);
if (err != 0) {
LOG_ERR("Failed to start advertising");
return -EINVAL;
}
atomic_set_bit(¤t_settings, BTP_GAP_SETTINGS_ADVERTISING);
return 0;
}
int tester_gap_stop_ext_adv(struct bt_le_ext_adv *ext_adv)
{
if (!IS_ENABLED(CONFIG_BT_EXT_ADV)) {
return -ENOTSUP;
}
int err;
if (ext_adv == NULL) {
LOG_ERR("Invalid ext_adv");
return -EINVAL;
}
err = bt_le_ext_adv_stop(ext_adv);
if (err != 0) {
LOG_ERR("Failed to stop advertising");
return -EINVAL;
}
atomic_clear_bit(¤t_settings, BTP_GAP_SETTINGS_ADVERTISING);
return 0;
}
static uint8_t set_discoverable(const void *cmd, uint16_t cmd_len,
void *rsp, uint16_t *rsp_len)
{
const struct btp_gap_set_discoverable_cmd *cp = cmd;
struct btp_gap_set_discoverable_rp *rp = rsp;
switch (cp->discoverable) {
case BTP_GAP_NON_DISCOVERABLE:
ad_flags &= ~(BT_LE_AD_GENERAL | BT_LE_AD_LIMITED);
atomic_clear_bit(¤t_settings, BTP_GAP_SETTINGS_DISCOVERABLE);
break;
case BTP_GAP_GENERAL_DISCOVERABLE:
ad_flags &= ~BT_LE_AD_LIMITED;
ad_flags |= BT_LE_AD_GENERAL;
atomic_set_bit(¤t_settings, BTP_GAP_SETTINGS_DISCOVERABLE);
break;
case BTP_GAP_LIMITED_DISCOVERABLE:
ad_flags &= ~BT_LE_AD_GENERAL;
ad_flags |= BT_LE_AD_LIMITED;
atomic_set_bit(¤t_settings, BTP_GAP_SETTINGS_DISCOVERABLE);
break;
default:
return BTP_STATUS_FAILED;
}
rp->current_settings = sys_cpu_to_le32(current_settings);
*rsp_len = sizeof(*rp);
return BTP_STATUS_SUCCESS;
}
static uint8_t set_bondable(const void *cmd, uint16_t cmd_len,
void *rsp, uint16_t *rsp_len)
{
const struct btp_gap_set_bondable_cmd *cp = cmd;
struct btp_gap_set_bondable_rp *rp = rsp;
LOG_DBG("bondable: %d", cp->bondable);
if (cp->bondable) {
atomic_set_bit(¤t_settings, BTP_GAP_SETTINGS_BONDABLE);
} else {
atomic_clear_bit(¤t_settings, BTP_GAP_SETTINGS_BONDABLE);
}
bt_set_bondable(cp->bondable);
rp->current_settings = sys_cpu_to_le32(current_settings);
*rsp_len = sizeof(*rp);
return BTP_STATUS_SUCCESS;
}
int tester_gap_create_adv_instance(struct bt_le_adv_param *param,
uint8_t own_addr_type, const struct bt_data *ad, size_t ad_len,
const struct bt_data *sd, size_t sd_len, uint32_t *settings,
struct bt_le_ext_adv **ext_adv)
{
int err = 0;
if (settings != NULL) {
atomic_set(¤t_settings, *settings);
}
if (atomic_test_bit(¤t_settings, BTP_GAP_SETTINGS_CONNECTABLE)) {
param->options |= BT_LE_ADV_OPT_CONN;
if (filter_list_in_use) {
param->options |= BT_LE_ADV_OPT_FILTER_CONN;
}
}
if (filter_list_in_use) {
param->options |= BT_LE_ADV_OPT_FILTER_SCAN_REQ;
}
switch (own_addr_type) {
case BTP_GAP_ADDR_TYPE_IDENTITY:
param->options |= BT_LE_ADV_OPT_USE_IDENTITY;
break;
case BTP_GAP_ADDR_TYPE_RESOLVABLE_PRIVATE:
if (!IS_ENABLED(CONFIG_BT_PRIVACY)) {
return -EINVAL;
}
/* RPA usage is controlled via privacy settings */
if (!atomic_test_bit(¤t_settings, BTP_GAP_SETTINGS_PRIVACY)) {
return -EINVAL;
}
break;
case BTP_GAP_ADDR_TYPE_NON_RESOLVABLE_PRIVATE:
if (!IS_ENABLED(CONFIG_BT_PRIVACY)) {
return -EINVAL;
}
/* NRPA is used only for non-connectable advertising */
if (atomic_test_bit(¤t_settings, BTP_GAP_SETTINGS_CONNECTABLE)) {
return -EINVAL;
}
break;
default:
return -EINVAL;
}
if (IS_ENABLED(CONFIG_BT_EXT_ADV) && atomic_test_bit(¤t_settings,
BTP_GAP_SETTINGS_EXTENDED_ADVERTISING)) {
param->options |= BT_LE_ADV_OPT_EXT_ADV;
if (*ext_adv) {
err = bt_le_ext_adv_stop(*ext_adv);
if (err != 0) {
return err;
}
err = bt_le_ext_adv_delete(*ext_adv);
if (err != 0) {
return err;
}
*ext_adv = NULL;
}
int index = tester_gap_ext_adv_idx_free_get();
if (index < 0) {
LOG_ERR("No free ext_adv index");
return -ENOMEM;
}
/* Set the set_id to be matching the index of the ext_adv set */
param->sid = index;
err = bt_le_ext_adv_create(param, NULL, &ext_adv_sets[index]);
if (err != 0) {
return BTP_STATUS_FAILED;
}
err = bt_le_ext_adv_set_data(ext_adv_sets[index], ad, ad_len, sd_len ?
sd : NULL, sd_len);
*ext_adv = ext_adv_sets[index];
}
return err;
}
static uint8_t start_advertising(const void *cmd, uint16_t cmd_len,
void *rsp, uint16_t *rsp_len)
{
const struct btp_gap_start_advertising_cmd *cp = cmd;
struct btp_gap_start_advertising_rp *rp = rsp;
struct bt_le_adv_param param =
BT_LE_ADV_PARAM_INIT(0, BT_GAP_ADV_FAST_INT_MIN_2, BT_GAP_ADV_FAST_INT_MAX_2, NULL);
uint8_t own_addr_type;
uint32_t duration;
uint8_t adv_len;
uint8_t sd_len;
int err;
int i;
/* This command is very unfortunate since after variable data there is
* additional 5 bytes (4 bytes for duration, 1 byte for own address
* type.
*/
if ((cmd_len < sizeof(*cp)) ||
(cmd_len != sizeof(*cp) + cp->adv_data_len + cp->scan_rsp_len +
sizeof(duration) + sizeof(own_addr_type))) {
return BTP_STATUS_FAILED;
}
/* currently ignored */
duration = sys_get_le32(cp->adv_sr_data + cp->adv_data_len + cp->scan_rsp_len);
(void)duration;
own_addr_type = cp->adv_sr_data[cp->adv_data_len + cp->scan_rsp_len + sizeof(duration)];
for (i = 0, adv_len = 1U; i < cp->adv_data_len; adv_len++) {
if (adv_len >= ARRAY_SIZE(ad)) {
LOG_ERR("ad[] Out of memory");
return BTP_STATUS_FAILED;
}
ad[adv_len].type = cp->adv_sr_data[i++];
ad[adv_len].data_len = cp->adv_sr_data[i++];
ad[adv_len].data = &cp->adv_sr_data[i];
i += ad[adv_len].data_len;
}
for (sd_len = 0U; i < cp->adv_data_len + cp->scan_rsp_len; sd_len++) {
if (sd_len >= ARRAY_SIZE(sd)) {
LOG_ERR("sd[] Out of memory");
return BTP_STATUS_FAILED;
}
sd[sd_len].type = cp->adv_sr_data[i++];
sd[sd_len].data_len = cp->adv_sr_data[i++];
sd[sd_len].data = &cp->adv_sr_data[i];
i += sd[sd_len].data_len;
}
struct bt_le_ext_adv *ext_adv = NULL;
err = tester_gap_create_adv_instance(¶m, own_addr_type, ad, adv_len, sd,
sd_len, NULL, &ext_adv);
if (err != 0) {
return BTP_STATUS_FAILED;
}
if (IS_ENABLED(CONFIG_BT_EXT_ADV) &&
atomic_test_bit(¤t_settings, BTP_GAP_SETTINGS_EXTENDED_ADVERTISING)) {
err = bt_le_ext_adv_start(ext_adv, BT_LE_EXT_ADV_START_DEFAULT);
} else {
err = bt_le_adv_start(¶m, ad, adv_len, sd_len ? sd : NULL, sd_len);
}
/* BTP API don't allow to set empty scan response data. */
if (err < 0) {
LOG_ERR("Failed to start advertising");
return BTP_STATUS_FAILED;
}
atomic_set_bit(¤t_settings, BTP_GAP_SETTINGS_ADVERTISING);
rp->current_settings = sys_cpu_to_le32(current_settings);
*rsp_len = sizeof(*rp);
return BTP_STATUS_SUCCESS;
}
static uint8_t start_directed_advertising(const void *cmd, uint16_t cmd_len,
void *rsp, uint16_t *rsp_len)
{
const struct btp_gap_start_directed_adv_cmd *cp = cmd;
struct btp_gap_start_directed_adv_rp *rp = rsp;
struct bt_le_adv_param adv_param;
uint16_t options = sys_le16_to_cpu(cp->options);
adv_param = *BT_LE_ADV_CONN_DIR(&cp->address);
if (!(options & BTP_GAP_START_DIRECTED_ADV_HD)) {
adv_param.options |= BT_LE_ADV_OPT_DIR_MODE_LOW_DUTY;
adv_param.interval_max = BT_GAP_ADV_FAST_INT_MAX_2;
adv_param.interval_min = BT_GAP_ADV_FAST_INT_MIN_2;
}
if (IS_ENABLED(CONFIG_BT_PRIVACY) && (options & BTP_GAP_START_DIRECTED_ADV_PEER_RPA)) {
/* check if peer supports Central Address Resolution */
for (int i = 0; i < CONFIG_BT_MAX_PAIRED; i++) {
if (bt_addr_le_eq(&cp->address, &cars[i].addr)) {
if (cars[i].supported) {
adv_param.options |= BT_LE_ADV_OPT_DIR_ADDR_RPA;
}
}
}
}
if (bt_le_adv_start(&adv_param, NULL, 0, NULL, 0) < 0) {
LOG_ERR("Failed to start advertising");
return BTP_STATUS_FAILED;
}
atomic_set_bit(¤t_settings, BTP_GAP_SETTINGS_ADVERTISING);
rp->current_settings = sys_cpu_to_le32(current_settings);
*rsp_len = sizeof(*rp);
return BTP_STATUS_SUCCESS;
}
static uint8_t stop_advertising(const void *cmd, uint16_t cmd_len,
void *rsp, uint16_t *rsp_len)
{
struct btp_gap_stop_advertising_rp *rp = rsp;
int err;
err = bt_le_adv_stop();
if (err < 0) {
tester_rsp(BTP_SERVICE_ID_GAP, BTP_GAP_STOP_ADVERTISING, BTP_STATUS_FAILED);
LOG_ERR("Failed to stop advertising: %d", err);
return BTP_STATUS_FAILED;
}
atomic_clear_bit(¤t_settings, BTP_GAP_SETTINGS_ADVERTISING);
rp->current_settings = sys_cpu_to_le32(current_settings);
*rsp_len = sizeof(*rp);
return BTP_STATUS_SUCCESS;
}
static uint8_t get_ad_flags(struct net_buf_simple *buf_ad)
{
uint8_t len, i;
/* Parse advertisement to get flags */
for (i = 0U; i < buf_ad->len; i += len - 1) {
len = buf_ad->data[i++];
if (!len) {
break;
}
/* Check if field length is correct */
if (len > (buf_ad->len - i) || (buf_ad->len - i) < 1) {
break;
}
switch (buf_ad->data[i++]) {
case BT_DATA_FLAGS:
return buf_ad->data[i];
default:
break;
}
}
return 0;
}
static uint8_t discovery_flags;
static struct net_buf_simple *adv_buf = NET_BUF_SIMPLE(ADV_BUF_LEN);
static void store_adv(const bt_addr_le_t *addr, int8_t rssi,
struct net_buf_simple *buf_ad)
{
struct btp_gap_device_found_ev *ev;
/* cleanup */
net_buf_simple_init(adv_buf, 0);
ev = net_buf_simple_add(adv_buf, sizeof(*ev));
bt_addr_le_copy(&ev->address, addr);
ev->rssi = rssi;
ev->flags = BTP_GAP_DEVICE_FOUND_FLAG_AD | BTP_GAP_DEVICE_FOUND_FLAG_RSSI;
ev->eir_data_len = buf_ad->len;
memcpy(net_buf_simple_add(adv_buf, buf_ad->len), buf_ad->data, buf_ad->len);
}
static void device_found(const bt_addr_le_t *addr, int8_t rssi, uint8_t evtype,
struct net_buf_simple *buf_ad)
{
/* if General/Limited Discovery - parse Advertising data to get flags */
if (!(discovery_flags & BTP_GAP_DISCOVERY_FLAG_LE_OBSERVE) &&
(evtype != BT_GAP_ADV_TYPE_SCAN_RSP)) {
uint8_t flags = get_ad_flags(buf_ad);
/* ignore non-discoverable devices */
if (!(flags & BT_LE_AD_DISCOV_MASK)) {
LOG_DBG("Non discoverable, skipping");
return;
}
/* if Limited Discovery - ignore general discoverable devices */
if ((discovery_flags & BTP_GAP_DISCOVERY_FLAG_LIMITED) &&
!(flags & BT_LE_AD_LIMITED)) {
LOG_DBG("General discoverable, skipping");
return;
}
}
/* attach Scan Response data */
if (evtype == BT_GAP_ADV_TYPE_SCAN_RSP) {
struct btp_gap_device_found_ev *ev;
bt_addr_le_t a;
/* skip if there is no pending advertisement */
if (!adv_buf->len) {
LOG_INF("No pending advertisement, skipping");
return;
}
ev = (void *) adv_buf->data;
bt_addr_le_copy(&a, &ev->address);
/*
* in general, the Scan Response comes right after the
* Advertisement, but if not if send stored event and ignore
* this one
*/
if (!bt_addr_le_eq(addr, &a)) {
LOG_INF("Address does not match, skipping");
goto done;
}
ev->eir_data_len += buf_ad->len;
ev->flags |= BTP_GAP_DEVICE_FOUND_FLAG_SD;
memcpy(net_buf_simple_add(adv_buf, buf_ad->len), buf_ad->data, buf_ad->len);
goto done;
}
/*
* if there is another pending advertisement, send it and store the
* current one
*/
if (adv_buf->len) {
tester_event(BTP_SERVICE_ID_GAP, BTP_GAP_EV_DEVICE_FOUND,
adv_buf->data, adv_buf->len);
net_buf_simple_reset(adv_buf);
}
store_adv(addr, rssi, buf_ad);
/* if Active Scan and scannable event - wait for Scan Response */
if ((discovery_flags & BTP_GAP_DISCOVERY_FLAG_LE_ACTIVE_SCAN) &&
(evtype == BT_GAP_ADV_TYPE_ADV_IND ||
evtype == BT_GAP_ADV_TYPE_ADV_SCAN_IND)) {
LOG_DBG("Waiting for scan response");
return;
}
done:
tester_event(BTP_SERVICE_ID_GAP, BTP_GAP_EV_DEVICE_FOUND,
adv_buf->data, adv_buf->len);
net_buf_simple_reset(adv_buf);
}
static uint8_t start_discovery(const void *cmd, uint16_t cmd_len,
void *rsp, uint16_t *rsp_len)
{
const struct btp_gap_start_discovery_cmd *cp = cmd;
/* only LE scan is supported */
if (cp->flags & BTP_GAP_DISCOVERY_FLAG_BREDR) {
LOG_WRN("BR/EDR not supported");
return BTP_STATUS_FAILED;
}