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provisioner_prov.c
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provisioner_prov.c
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// Copyright 2017-2019 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <string.h>
#include <errno.h>
#include "crypto.h"
#include "adv.h"
#include "scan.h"
#include "mesh.h"
#include "access.h"
#include "settings.h"
#include "fast_prov.h"
#include "mesh_common.h"
#include "proxy_client.h"
#include "provisioner_prov.h"
#include "provisioner_main.h"
#if CONFIG_BLE_MESH_PROVISIONER
_Static_assert(BLE_MESH_MAX_CONN >= CONFIG_BLE_MESH_PBG_SAME_TIME,
"Too large BLE Mesh PB-GATT count");
/* 3 transmissions, 20ms interval */
#define PROV_XMIT BLE_MESH_TRANSMIT(2, 20)
#define AUTH_METHOD_NO_OOB 0x00
#define AUTH_METHOD_STATIC 0x01
#define AUTH_METHOD_OUTPUT 0x02
#define AUTH_METHOD_INPUT 0x03
#define OUTPUT_OOB_BLINK 0x00
#define OUTPUT_OOB_BEEP 0x01
#define OUTPUT_OOB_VIBRATE 0x02
#define OUTPUT_OOB_NUMBER 0x03
#define OUTPUT_OOB_STRING 0x04
#define INPUT_OOB_PUSH 0x00
#define INPUT_OOB_TWIST 0x01
#define INPUT_OOB_NUMBER 0x02
#define INPUT_OOB_STRING 0x03
#define PROV_ERR_NONE 0x00
#define PROV_ERR_NVAL_PDU 0x01
#define PROV_ERR_NVAL_FMT 0x02
#define PROV_ERR_UNEXP_PDU 0x03
#define PROV_ERR_CFM_FAILED 0x04
#define PROV_ERR_RESOURCES 0x05
#define PROV_ERR_DECRYPT 0x06
#define PROV_ERR_UNEXP_ERR 0x07
#define PROV_ERR_ADDR 0x08
#define PROV_INVITE 0x00
#define PROV_CAPABILITIES 0x01
#define PROV_START 0x02
#define PROV_PUB_KEY 0x03
#define PROV_INPUT_COMPLETE 0x04
#define PROV_CONFIRM 0x05
#define PROV_RANDOM 0x06
#define PROV_DATA 0x07
#define PROV_COMPLETE 0x08
#define PROV_FAILED 0x09
#define PROV_ALG_P256 0x00
#define GPCF(gpc) (gpc & 0x03)
#define GPC_START(last_seg) (((last_seg) << 2) | 0x00)
#define GPC_ACK 0x01
#define GPC_CONT(seg_id) (((seg_id) << 2) | 0x02)
#define GPC_CTL(op) (((op) << 2) | 0x03)
#define START_PAYLOAD_MAX 20
#define CONT_PAYLOAD_MAX 23
#define START_LAST_SEG_MAX 2
#define START_LAST_SEG(gpc) (gpc >> 2)
#define CONT_SEG_INDEX(gpc) (gpc >> 2)
#define BEARER_CTL(gpc) (gpc >> 2)
#define LINK_OPEN 0x00
#define LINK_ACK 0x01
#define LINK_CLOSE 0x02
#define CLOSE_REASON_SUCCESS 0x00
#define CLOSE_REASON_TIMEOUT 0x01
#define CLOSE_REASON_FAILED 0x02
#define PROV_AUTH_VAL_SIZE 0x10
#define PROV_CONF_SALT_SIZE 0x10
#define PROV_CONF_KEY_SIZE 0x10
#define PROV_DH_KEY_SIZE 0x20
#define PROV_CONFIRM_SIZE 0x10
#define PROV_RANDOM_SIZE 0x10
#define PROV_PROV_SALT_SIZE 0x10
#define PROV_CONF_INPUTS_SIZE 0x91
#define XACT_SEG_DATA(_idx, _seg) (&link[_idx].rx.buf->data[20 + ((_seg - 1) * 23)])
#define XACT_SEG_RECV(_idx, _seg) (link[_idx].rx.seg &= ~(1 << (_seg)))
#define XACT_NVAL 0xff
enum {
REMOTE_PUB_KEY, /* Remote key has been received */
LOCAL_PUB_KEY, /* Local public key is available */
LINK_ACTIVE, /* Link has been opened */
WAIT_GEN_DHKEY, /* Waiting for remote public key to generate DHKey */
HAVE_DHKEY, /* DHKey has been calculated */
SEND_CONFIRM, /* Waiting to send Confirm value */
WAIT_NUMBER, /* Waiting for number input from user */
WAIT_STRING, /* Waiting for string input from user */
TIMEOUT_START, /* Provision timeout timer has started */
NUM_FLAGS,
};
/** Provisioner link structure allocation
* |--------------------------------------------------------|
* | Link(PB-ADV) | Link(PB-GATT) |
* |--------------------------------------------------------|
* |<----------------------Total Link---------------------->|
*/
struct prov_link {
BLE_MESH_ATOMIC_DEFINE(flags, NUM_FLAGS);
uint8_t uuid[16]; /* check if device is being provisioned*/
uint16_t oob_info; /* oob info of this device */
uint8_t element_num; /* element num of device */
uint8_t ki_flags; /* Key refresh flag and iv update flag */
uint32_t iv_index; /* IV Index */
uint8_t auth_method; /* Choosen authentication method */
uint8_t auth_action; /* Choosen authentication action */
uint8_t auth_size; /* Choosen authentication size */
uint16_t assign_addr; /* Application assigned address for the device */
uint16_t unicast_addr; /* unicast address allocated for device */
bt_mesh_addr_t addr; /* Device address */
#if defined(CONFIG_BLE_MESH_PB_GATT)
bool connecting; /* start connecting with device */
struct bt_mesh_conn *conn; /* GATT connection */
#endif
uint8_t expect; /* Next expected PDU */
uint8_t *dhkey; /* Calculated DHKey */
uint8_t *auth; /* Authentication Value */
uint8_t *conf_salt; /* ConfirmationSalt */
uint8_t *conf_key; /* ConfirmationKey */
uint8_t *conf_inputs; /* ConfirmationInputs */
uint8_t *rand; /* Local Random */
uint8_t *conf; /* Remote Confirmation */
uint8_t *local_conf; /* Local Confirmation */
uint8_t *prov_salt; /* Provisioning Salt */
#if defined(CONFIG_BLE_MESH_PB_ADV)
bool linking; /* Linking is being establishing */
uint16_t send_link_close; /* Link close is being sent flag */
uint32_t link_id; /* Link ID */
uint8_t pending_ack; /* Decide which transaction id ack is pending */
uint8_t expect_ack_for; /* Transaction ACK expected for provisioning pdu */
uint8_t tx_pdu_type; /* The current transmitted Provisioning PDU type */
struct {
uint8_t trans_id; /* Transaction ID */
uint8_t prev_id; /* Previous Transaction ID */
uint8_t seg; /* Bit-field of unreceived segments */
uint8_t last_seg; /* Last segment (to check length) */
uint8_t fcs; /* Expected FCS value */
uint8_t adv_buf_id; /* index of buf allocated in adv_buf_data */
struct net_buf_simple *buf;
} rx;
struct {
/* Start timestamp of the transaction */
int64_t start;
/* Transaction id*/
uint8_t trans_id;
/* Pending outgoing buffer(s) */
struct net_buf *buf[3];
/* Retransmit timer */
struct k_delayed_work retransmit;
} tx;
#endif
/** Provision timeout timer. Spec P259 says: The provisioning protocol
* shall have a minimum timeout of 60 seconds that is reset each time
* a provisioning protocol PDU is sent or received.
*/
struct k_delayed_work timeout;
};
/* Number of devices can be provisioned at the same time equals to PB-ADV + PB-GATT */
#define BLE_MESH_PROV_SAME_TIME \
(CONFIG_BLE_MESH_PBA_SAME_TIME + CONFIG_BLE_MESH_PBG_SAME_TIME)
#define PROV_MAX_ADDR_TO_ASSIGN 0x7FFF
static struct prov_link link[BLE_MESH_PROV_SAME_TIME];
struct prov_rx {
uint32_t link_id;
uint8_t xact_id;
uint8_t gpc;
};
struct bt_mesh_prov_ctx {
/* Primary element address of Provisioner */
uint16_t primary_addr;
/* Provisioning bearers used by Provisioner */
bt_mesh_prov_bearer_t bearers;
/* Current number of PB-ADV provisioned devices simultaneously */
uint8_t pba_count;
/* Current number of PB-GATT provisioned devices simultaneously */
uint8_t pbg_count;
/* Current unicast address going to allocated */
uint16_t curr_alloc_addr;
/* Current net_idx going to be used in provisioning data */
uint16_t curr_net_idx;
/* Current flags going to be used in provisioning data */
uint8_t curr_flags;
/* Current iv_index going to be used in provisioning data */
uint16_t curr_iv_index;
/* Length of Static OOB value */
uint8_t static_oob_len;
/* Static OOB value */
uint8_t static_oob_val[16];
/* Offset of the device uuid to be matched, based on zero */
uint8_t match_offset;
/* Length of the device uuid to be matched (start from the match_offset) */
uint8_t match_length;
/* Value of the device uuid to be matched */
uint8_t match_value[16];
/* Indicate when received uuid_match adv_pkts, can provision it at once */
bool prov_after_match;
#if defined(CONFIG_BLE_MESH_PB_ADV)
/* Mutex used to protect the PB-ADV procedure */
bt_mesh_mutex_t pb_adv_lock;
/* Mutex used to protect the adv buf during PB-ADV procedure */
bt_mesh_mutex_t pb_buf_lock;
#endif
#if defined(CONFIG_BLE_MESH_PB_GATT)
/* Mutex used to protect the PB-GATT procedure */
bt_mesh_mutex_t pb_gatt_lock;
#endif
/* Fast provisioning related information */
struct {
bool enable;
uint16_t net_idx;
uint8_t flags;
uint32_t iv_index;
uint16_t unicast_addr_min;
uint16_t unicast_addr_max;
} fast_prov;
};
static struct bt_mesh_prov_ctx prov_ctx;
#define FAST_PROV_ENABLE() (prov_ctx.fast_prov.enable)
struct unprov_dev_queue {
bt_mesh_addr_t addr;
uint8_t uuid[16];
uint16_t oob_info;
uint8_t bearer;
uint8_t flags;
} __packed unprov_dev[CONFIG_BLE_MESH_WAIT_FOR_PROV_MAX_DEV_NUM] = {
[0 ... (CONFIG_BLE_MESH_WAIT_FOR_PROV_MAX_DEV_NUM - 1)] = {
.addr.type = 0xff,
.bearer = 0,
.flags = false,
},
};
static unprov_adv_pkt_cb_t notify_unprov_adv_pkt_cb;
#define BUF_TIMEOUT K_MSEC(400)
#if defined(CONFIG_BLE_MESH_FAST_PROV)
#define RETRANSMIT_TIMEOUT K_MSEC(360)
#define TRANSACTION_TIMEOUT K_SECONDS(3)
#define PROVISION_TIMEOUT K_SECONDS(6)
#else
#define RETRANSMIT_TIMEOUT K_MSEC(500)
#define TRANSACTION_TIMEOUT K_SECONDS(30)
#define PROVISION_TIMEOUT K_SECONDS(60)
#endif /* CONFIG_BLE_MESH_FAST_PROV */
#if defined(CONFIG_BLE_MESH_PB_GATT)
#define PROV_BUF_HEADROOM 5
#else
#define PROV_BUF_HEADROOM 0
#endif
#define PROV_BUF(name, len) \
NET_BUF_SIMPLE_DEFINE(name, PROV_BUF_HEADROOM + len)
static const struct bt_mesh_prov *prov;
#if defined(CONFIG_BLE_MESH_PB_ADV)
static void send_link_open(const uint8_t idx);
#endif
static void prov_gen_dh_key(const uint8_t idx);
static void send_pub_key(const uint8_t idx, uint8_t oob);
static void close_link(const uint8_t idx, uint8_t reason);
#if defined(CONFIG_BLE_MESH_PB_ADV)
#define ADV_BUF_SIZE 65
static struct prov_adv_buf {
struct net_buf_simple buf;
} adv_buf[CONFIG_BLE_MESH_PBA_SAME_TIME];
static uint8_t adv_buf_data[ADV_BUF_SIZE * CONFIG_BLE_MESH_PBA_SAME_TIME];
#endif /* CONFIG_BLE_MESH_PB_ADV */
#define PROV_FREE_MEM(_idx, member) \
{ \
if (link[_idx].member) { \
bt_mesh_free(link[_idx].member); \
link[_idx].member = NULL; \
} \
}
#if defined(CONFIG_BLE_MESH_PB_ADV)
static inline void bt_mesh_pb_adv_mutex_new(void)
{
if (!prov_ctx.pb_adv_lock.mutex) {
bt_mesh_mutex_create(&prov_ctx.pb_adv_lock);
}
}
#if CONFIG_BLE_MESH_DEINIT
static inline void bt_mesh_pb_adv_mutex_free(void)
{
bt_mesh_mutex_free(&prov_ctx.pb_adv_lock);
}
#endif /* CONFIG_BLE_MESH_DEINIT */
static inline void bt_mesh_pb_adv_lock(void)
{
bt_mesh_mutex_lock(&prov_ctx.pb_adv_lock);
}
static inline void bt_mesh_pb_adv_unlock(void)
{
bt_mesh_mutex_unlock(&prov_ctx.pb_adv_lock);
}
static inline void bt_mesh_pb_buf_mutex_new(void)
{
if (!prov_ctx.pb_buf_lock.mutex) {
bt_mesh_mutex_create(&prov_ctx.pb_buf_lock);
}
}
#if CONFIG_BLE_MESH_DEINIT
static inline void bt_mesh_pb_buf_mutex_free(void)
{
bt_mesh_mutex_free(&prov_ctx.pb_buf_lock);
}
#endif /* CONFIG_BLE_MESH_DEINIT */
static inline void bt_mesh_pb_buf_lock(void)
{
bt_mesh_mutex_lock(&prov_ctx.pb_buf_lock);
}
static inline void bt_mesh_pb_buf_unlock(void)
{
bt_mesh_mutex_unlock(&prov_ctx.pb_buf_lock);
}
#endif /* CONFIG_BLE_MESH_PB_ADV */
#if defined(CONFIG_BLE_MESH_PB_GATT)
static inline void bt_mesh_pb_gatt_mutex_new(void)
{
if (!prov_ctx.pb_gatt_lock.mutex) {
bt_mesh_mutex_create(&prov_ctx.pb_gatt_lock);
}
}
#if CONFIG_BLE_MESH_DEINIT
static inline void bt_mesh_pb_gatt_mutex_free(void)
{
bt_mesh_mutex_free(&prov_ctx.pb_gatt_lock);
}
#endif /* CONFIG_BLE_MESH_DEINIT */
static inline void bt_mesh_pb_gatt_lock(void)
{
bt_mesh_mutex_lock(&prov_ctx.pb_gatt_lock);
}
static inline void bt_mesh_pb_gatt_unlock(void)
{
bt_mesh_mutex_unlock(&prov_ctx.pb_gatt_lock);
}
void bt_mesh_provisioner_pbg_count_dec(void)
{
if (prov_ctx.pbg_count) {
prov_ctx.pbg_count--;
}
}
static inline void provisioner_pbg_count_inc(void)
{
prov_ctx.pbg_count++;
}
void bt_mesh_provisioner_clear_link_info(const uint8_t addr[6])
{
int i;
if (!addr) {
BT_ERR("%s, Invalid parameter", __func__);
return;
}
BT_DBG("Clear device info, addr %s", bt_hex(addr, BLE_MESH_ADDR_LEN));
for (i = CONFIG_BLE_MESH_PBA_SAME_TIME; i < BLE_MESH_PROV_SAME_TIME; i++) {
if (!memcmp(link[i].addr.val, addr, BLE_MESH_ADDR_LEN)) {
link[i].connecting = false;
link[i].conn = NULL;
link[i].oob_info = 0x0;
memset(link[i].uuid, 0, 16);
memset(&link[i].addr, 0, sizeof(bt_mesh_addr_t));
bt_mesh_atomic_test_and_clear_bit(link[i].flags, LINK_ACTIVE);
if (bt_mesh_atomic_test_and_clear_bit(link[i].flags, TIMEOUT_START)) {
k_delayed_work_cancel(&link[i].timeout);
}
return;
}
}
BT_WARN("Device not found, addr %s", bt_hex(addr, BLE_MESH_ADDR_LEN));
return;
}
#endif /* CONFIG_BLE_MESH_PB_GATT */
const struct bt_mesh_prov *bt_mesh_provisioner_get_prov_info(void)
{
return prov;
}
void bt_mesh_provisioner_restore_prov_info(uint16_t primary_addr, uint16_t alloc_addr)
{
prov_ctx.primary_addr = primary_addr;
prov_ctx.curr_alloc_addr = alloc_addr;
}
static bool is_unprov_dev_being_provision(const uint8_t uuid[16])
{
int i;
#if defined(CONFIG_BLE_MESH_FAST_PROV)
/**
* During Fast Provisioning test, we found that if a device has already being
* provisioned, there is still a chance that the Provisioner can receive the
* Unprovisioned Device Beacon from the device (because the device will stop
* Unprovisioned Device Beacon when Transaction ACK for Provisioning Complete
* is received). So in Fast Provisioning the Provisioner should ignore this.
*/
if (bt_mesh_provisioner_get_node_with_uuid(uuid)) {
BT_WARN("Device has already been provisioned");
return true;
}
#endif
for (i = 0; i < BLE_MESH_PROV_SAME_TIME; i++) {
#if defined(CONFIG_BLE_MESH_PB_ADV) && defined(CONFIG_BLE_MESH_PB_GATT)
if (link[i].linking || link[i].connecting ||
bt_mesh_atomic_test_bit(link[i].flags, LINK_ACTIVE)) {
#elif defined(CONFIG_BLE_MESH_PB_ADV) && !defined(CONFIG_BLE_MESH_PB_GATT)
if (link[i].linking || bt_mesh_atomic_test_bit(link[i].flags, LINK_ACTIVE)) {
#else
if (link[i].connecting || bt_mesh_atomic_test_bit(link[i].flags, LINK_ACTIVE)) {
#endif
if (!memcmp(link[i].uuid, uuid, 16)) {
BT_DBG("Device is being provisioning");
return true;
}
}
}
return false;
}
static bool is_unprov_dev_uuid_match(const uint8_t uuid[16])
{
if (prov_ctx.match_length) {
if (memcmp(uuid + prov_ctx.match_offset,
prov_ctx.match_value, prov_ctx.match_length)) {
return false;
}
}
return true;
}
static int provisioner_check_unprov_dev_info(const uint8_t uuid[16], bt_mesh_prov_bearer_t bearer)
{
if (!uuid) {
BT_ERR("%s, Invalid parameter", __func__);
return -EINVAL;
}
/* Check if the device uuid matches configured value */
if (is_unprov_dev_uuid_match(uuid) == false) {
BT_DBG("Device uuid mismatch");
return -EIO;
}
/* Check if this device is currently being provisioned.
* According to Zephyr's device code, if we connect with
* one device and start to provision it, we may still can
* receive the connectable prov adv pkt from this device.
* Here we check both PB-GATT and PB-ADV link status.
*/
if (is_unprov_dev_being_provision(uuid)) {
return -EALREADY;
}
/* Check if the current PB-ADV link is full */
if (IS_ENABLED(CONFIG_BLE_MESH_PB_ADV) &&
(prov_ctx.bearers & BLE_MESH_PROV_ADV) &&
(bearer == BLE_MESH_PROV_ADV) &&
(prov_ctx.pba_count == CONFIG_BLE_MESH_PBA_SAME_TIME)) {
BT_INFO("Current PB-ADV links reach max limit");
return -ENOMEM;
}
/* Check if the current PB-GATT link is full */
if (IS_ENABLED(CONFIG_BLE_MESH_PB_GATT) &&
(prov_ctx.bearers & BLE_MESH_PROV_GATT) &&
(bearer == BLE_MESH_PROV_GATT) &&
(prov_ctx.pbg_count == CONFIG_BLE_MESH_PBG_SAME_TIME)) {
BT_INFO("Current PB-GATT links reach max limit");
return -ENOMEM;
}
/* Check if the device has already been provisioned */
if (bt_mesh_provisioner_get_node_with_uuid(uuid)) {
BT_INFO("Provisioned before, start to provision again");
}
return 0;
}
#if defined(CONFIG_BLE_MESH_PB_ADV)
static int provisioner_start_prov_pb_adv(const uint8_t uuid[16], const bt_mesh_addr_t *addr,
uint16_t oob_info, uint16_t assign_addr)
{
int i;
if (uuid == NULL) {
BT_ERR("%s, Invalid parameter", __func__);
return -EINVAL;
}
bt_mesh_pb_adv_lock();
/* If the unicast address of the node is going to be allocated internally,
* then we need to check if there are addresses can be allocated.
*/
if (assign_addr == BLE_MESH_ADDR_UNASSIGNED &&
prov_ctx.curr_alloc_addr == BLE_MESH_ADDR_UNASSIGNED) {
BT_ERR("No available unicast address to assign");
bt_mesh_pb_adv_unlock();
return -EIO;
}
if (is_unprov_dev_being_provision(uuid)) {
bt_mesh_pb_adv_unlock();
return -EALREADY;
}
for (i = 0; i < CONFIG_BLE_MESH_PBA_SAME_TIME; i++) {
if (!bt_mesh_atomic_test_bit(link[i].flags, LINK_ACTIVE) && !link[i].linking) {
memcpy(link[i].uuid, uuid, 16);
link[i].oob_info = oob_info;
if (addr) {
link[i].addr.type = addr->type;
memcpy(link[i].addr.val, addr->val, BLE_MESH_ADDR_LEN);
}
send_link_open(i);
/* If a specific unicast address is assigned for the device, then
* Provisioner will use this address in the Provisioning Data PDU.
*/
if (BLE_MESH_ADDR_IS_UNICAST(assign_addr)) {
link[i].assign_addr = assign_addr;
}
/* Increase PB-ADV link count */
prov_ctx.pba_count++;
bt_mesh_pb_adv_unlock();
return 0;
}
}
BT_ERR("No PB-ADV link available");
bt_mesh_pb_adv_unlock();
return -ENOMEM;
}
#endif /* CONFIG_BLE_MESH_PB_ADV */
#if defined(CONFIG_BLE_MESH_PB_GATT)
static int provisioner_start_prov_pb_gatt(const uint8_t uuid[16], const bt_mesh_addr_t *addr,
uint16_t oob_info, uint16_t assign_addr)
{
int i;
if (uuid == NULL || addr == NULL) {
BT_ERR("%s, Invalid parameter", __func__);
return -EINVAL;
}
bt_mesh_pb_gatt_lock();
/* If the unicast address of the node is going to be allocated internally,
* then we need to check if there are addresses can be allocated.
*/
if (assign_addr == BLE_MESH_ADDR_UNASSIGNED &&
prov_ctx.curr_alloc_addr == BLE_MESH_ADDR_UNASSIGNED) {
BT_ERR("No available unicast address to assign");
bt_mesh_pb_gatt_unlock();
return -EIO;
}
if (is_unprov_dev_being_provision(uuid)) {
bt_mesh_pb_gatt_unlock();
return -EALREADY;
}
for (i = CONFIG_BLE_MESH_PBA_SAME_TIME; i < BLE_MESH_PROV_SAME_TIME; i++) {
if (!link[i].connecting && !bt_mesh_atomic_test_bit(link[i].flags, LINK_ACTIVE)) {
if (bt_mesh_gattc_conn_create(addr, BLE_MESH_UUID_MESH_PROV_VAL)) {
bt_mesh_pb_gatt_unlock();
return -EIO;
}
memcpy(link[i].uuid, uuid, 16);
link[i].oob_info = oob_info;
link[i].addr.type = addr->type;
memcpy(link[i].addr.val, addr->val, BLE_MESH_ADDR_LEN);
/* If the application layer assigned a specific unicast address for the device,
* then Provisioner will use this address in the Provisioning Data PDU.
*/
if (BLE_MESH_ADDR_IS_UNICAST(assign_addr)) {
link[i].assign_addr = assign_addr;
}
/* If creating connection successfully, set connecting flag to 1 */
link[i].connecting = true;
/* Increase PB-GATT link count */
provisioner_pbg_count_inc();
bt_mesh_pb_gatt_unlock();
return 0;
}
}
BT_ERR("No PB-GATT link available");
bt_mesh_pb_gatt_unlock();
return -ENOMEM;
}
#endif /* CONFIG_BLE_MESH_PB_GATT */
int bt_mesh_provisioner_add_unprov_dev(struct bt_mesh_unprov_dev_add *add_dev, uint8_t flags)
{
bt_mesh_addr_t add_addr = {0};
bool addr_valid = false;
uint8_t zero[16] = {0};
int err = 0;
int i;
if (add_dev == NULL) {
BT_ERR("%s, Invalid parameter", __func__);
return -EINVAL;
}
if (!memcmp(add_dev->uuid, zero, 16)) {
BT_ERR("Invalid device uuid to add");
return -EINVAL;
}
if (!(add_dev->bearer & (BLE_MESH_PROV_ADV | BLE_MESH_PROV_GATT))) {
BT_ERR("Invalid bearer 0x%02x", add_dev->bearer);
return -EINVAL;
}
if ((!IS_ENABLED(CONFIG_BLE_MESH_PB_GATT) ||
!(prov_ctx.bearers & BLE_MESH_PROV_GATT))
&& (add_dev->bearer & BLE_MESH_PROV_GATT)) {
BT_ERR("Not support PB-GATT");
return -EINVAL;
}
if ((!IS_ENABLED(CONFIG_BLE_MESH_PB_ADV) ||
!(prov_ctx.bearers & BLE_MESH_PROV_ADV))
&& (add_dev->bearer & BLE_MESH_PROV_ADV)) {
BT_ERR("Not support PB-ADV");
return -EINVAL;
}
if (memcmp(add_dev->addr, zero, BLE_MESH_ADDR_LEN)) {
addr_valid = true;
add_addr.type = add_dev->addr_type;
memcpy(add_addr.val, add_dev->addr, BLE_MESH_ADDR_LEN);
}
/* Pb-GATT needs device address to create connection */
if ((add_dev->bearer & BLE_MESH_PROV_GATT) && (addr_valid == false)) {
BT_ERR("Invalid device address for PB-GATT");
return -EINVAL;
}
/* If start provisioning immediately, only one bearer can be used */
if ((flags & START_PROV_NOW) &&
(add_dev->bearer != BLE_MESH_PROV_ADV) &&
(add_dev->bearer != BLE_MESH_PROV_GATT)) {
BT_ERR("Can not start PB-ADV & PB-GATT simultaneously");
return -EINVAL;
}
/* Check if the provisioned nodes array is full */
if (bt_mesh_provisioner_get_node_with_uuid(add_dev->uuid) == NULL) {
if (bt_mesh_provisioner_get_node_count() == CONFIG_BLE_MESH_MAX_PROV_NODES) {
BT_WARN("Current provisioned devices reach max limit");
return -ENOMEM;
}
}
/* Check if the device already exists in queue */
for (i = 0; i < ARRAY_SIZE(unprov_dev); i++) {
if (!memcmp(unprov_dev[i].uuid, add_dev->uuid, 16)) {
if (!(add_dev->bearer & unprov_dev[i].bearer)) {
BT_WARN("Add device with only bearer updated");
unprov_dev[i].bearer |= add_dev->bearer;
} else {
BT_WARN("Device already exists in queue");
}
goto start;
}
}
/* If not exists, try to add the device into queue */
for (i = 0; i < ARRAY_SIZE(unprov_dev); i++) {
if (unprov_dev[i].bearer) {
continue;
}
if (addr_valid) {
unprov_dev[i].addr.type = add_dev->addr_type;
memcpy(unprov_dev[i].addr.val, add_dev->addr, BLE_MESH_ADDR_LEN);
}
memcpy(unprov_dev[i].uuid, add_dev->uuid, 16);
unprov_dev[i].bearer = add_dev->bearer & BIT_MASK(2);
unprov_dev[i].flags = flags & BIT_MASK(3);
goto start;
}
/* If queue is full, find flushable device and replace it */
for (i = 0; i < ARRAY_SIZE(unprov_dev); i++) {
if (unprov_dev[i].flags & FLUSHABLE_DEV) {
memset(&unprov_dev[i], 0, sizeof(struct unprov_dev_queue));
if (addr_valid) {
unprov_dev[i].addr.type = add_dev->addr_type;
memcpy(unprov_dev[i].addr.val, add_dev->addr, BLE_MESH_ADDR_LEN);
}
memcpy(unprov_dev[i].uuid, add_dev->uuid, 16);
unprov_dev[i].bearer = add_dev->bearer & BIT_MASK(2);
unprov_dev[i].flags = flags & BIT_MASK(3);
goto start;
}
}
BT_ERR("Unprovisioned device queue is full");
return -ENOMEM;
start:
/* If not provisioning immediately, directly return here */
if (!(flags & START_PROV_NOW)) {
return 0;
}
/* Check if current provisioned node count + active link reach max limit */
if (bt_mesh_provisioner_get_node_with_uuid(add_dev->uuid) == NULL) {
if (bt_mesh_provisioner_get_node_count() + prov_ctx.pba_count + \
prov_ctx.pbg_count >= CONFIG_BLE_MESH_MAX_PROV_NODES) {
BT_WARN("Node count + active link count reach max limit");
return -EIO;
}
}
if ((err = provisioner_check_unprov_dev_info(add_dev->uuid, add_dev->bearer))) {
return err;
}
if (add_dev->bearer == BLE_MESH_PROV_ADV) {
#if defined(CONFIG_BLE_MESH_PB_ADV)
if ((err = provisioner_start_prov_pb_adv(add_dev->uuid, addr_valid ? &add_addr : NULL,
add_dev->oob_info, BLE_MESH_ADDR_UNASSIGNED))) {
return err;
}
#endif
} else if (add_dev->bearer == BLE_MESH_PROV_GATT) {
#if defined(CONFIG_BLE_MESH_PB_GATT)
if ((err = provisioner_start_prov_pb_gatt(add_dev->uuid, &add_addr, add_dev->oob_info,
BLE_MESH_ADDR_UNASSIGNED))) {
return err;
}
#endif
}
return 0;
}
int bt_mesh_provisioner_prov_device_with_addr(const uint8_t uuid[16], const uint8_t addr[6],
uint8_t addr_type, bt_mesh_prov_bearer_t bearer,
uint16_t oob_info, uint16_t unicast_addr)
{
bt_mesh_addr_t dev_addr = {0};
int err = 0;
if (uuid == NULL) {
BT_ERR("Invalid device uuid");
return -EINVAL;
}
if (bearer != BLE_MESH_PROV_ADV && bearer != BLE_MESH_PROV_GATT) {
BT_ERR("Invalid provisioning bearer 0x%02x", bearer);
return -EINVAL;
}
if ((!IS_ENABLED(CONFIG_BLE_MESH_PB_ADV) ||
!(prov_ctx.bearers & BLE_MESH_PROV_ADV)) &&
(bearer == BLE_MESH_PROV_ADV)) {
BT_ERR("Not support PB-ADV");
return -ENOTSUP;
}
if ((!IS_ENABLED(CONFIG_BLE_MESH_PB_GATT) ||
!(prov_ctx.bearers & BLE_MESH_PROV_GATT)) &&
(bearer == BLE_MESH_PROV_GATT)) {
BT_ERR("Not support PB-GATT");
return -ENOTSUP;
}
if (bearer == BLE_MESH_PROV_GATT && addr == NULL) {
BT_ERR("Invalid device address for PB-GATT");
return -EINVAL;
}
if (!BLE_MESH_ADDR_IS_UNICAST(unicast_addr)) {
BT_ERR("Invalid unicast address 0x%04x", unicast_addr);
return -EINVAL;
}
/* Here we will not check if the assigned unicast address is overlapped
* with the unicast addresses of other nodes or Provisioner, because:
* 1. At this moment, the element number of the device is unknown
* 2. If the node is a reprovisioned device, then the original allocated
* unicast address will be used.
* 3. Some other devices may be just being provisioning, and currently we
* can not know the exactly allocated addresses of them.
*/
if (bt_mesh_provisioner_get_node_with_uuid(uuid) == NULL) {
/* Check if the provisioned nodes array is full */
if (bt_mesh_provisioner_get_node_count() == CONFIG_BLE_MESH_MAX_PROV_NODES) {
BT_WARN("Current provisioned devices reach max limit");
return -ENOMEM;
}
/* Check if current provisioned node count + active link reach max limit */
if (bt_mesh_provisioner_get_node_count() + prov_ctx.pba_count + \
prov_ctx.pbg_count >= CONFIG_BLE_MESH_MAX_PROV_NODES) {
BT_WARN("Node count + active link count reach max limit");
return -EIO;
}
}
if ((err = provisioner_check_unprov_dev_info(uuid, bearer))) {
return err;
}
if (addr) {
dev_addr.type = addr_type;
memcpy(dev_addr.val, addr, BLE_MESH_ADDR_LEN);
}
if (bearer == BLE_MESH_PROV_ADV) {
#if defined(CONFIG_BLE_MESH_PB_ADV)
if ((err = provisioner_start_prov_pb_adv(uuid, addr ? &dev_addr : NULL, oob_info, unicast_addr))) {
return err;
}
#endif
} else if (bearer == BLE_MESH_PROV_GATT) {
#if defined(CONFIG_BLE_MESH_PB_GATT)
if ((err = provisioner_start_prov_pb_gatt(uuid, &dev_addr, oob_info, unicast_addr))) {
return err;
}
#endif
}
return 0;
}
int bt_mesh_provisioner_delete_device(struct bt_mesh_device_delete *del_dev)
{
uint8_t zero[16] = {0};
int i;
if (del_dev == NULL) {
BT_ERR("%s, Invalid parameter", __func__);
return -EINVAL;
}
if (!memcmp(del_dev->uuid, zero, 16)) {
BT_ERR("Invalid device uuid to delete");
return -EINVAL;
}
/* Find if the device is in the device queue */
for (i = 0; i < ARRAY_SIZE(unprov_dev); i++) {
if (!memcmp(unprov_dev[i].uuid, del_dev->uuid, 16)) {
memset(&unprov_dev[i], 0, sizeof(struct unprov_dev_queue));
break;
}
}
/* Find if the device is being provisioned */
for (i = 0; i < ARRAY_SIZE(link); i++) {
if (!memcmp(link[i].uuid, del_dev->uuid, 16)) {
close_link(i, CLOSE_REASON_FAILED);
break;
}
}
return 0;
}
int bt_mesh_provisioner_set_dev_uuid_match(uint8_t offset, uint8_t length,
const uint8_t *match, bool prov_flag)
{
if (length && (!match || (offset + length > 16))) {
BT_ERR("%s, Invalid parameter", __func__);
return -EINVAL;
}
(void)memset(prov_ctx.match_value, 0, 16);
prov_ctx.match_offset = offset;
prov_ctx.match_length = length;
if (length) {
memcpy(prov_ctx.match_value, match, length);
}
prov_ctx.prov_after_match = prov_flag;