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Primary Git Repository for the Zephyr Project. Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures.
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zephyr/subsys/bluetooth/host/shell/gatt.c

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/** @file
* @brief Bluetooth GATT shell functions
*
*/
/*
* Copyright (c) 2017 Intel Corporation
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <errno.h>
#include <zephyr/types.h>
#include <stddef.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <zephyr/shell/shell_string_conv.h>
#include <zephyr/sys/byteorder.h>
#include <zephyr/sys/util.h>
#include <zephyr/kernel.h>
#include <zephyr/bluetooth/bluetooth.h>
#include <zephyr/bluetooth/conn.h>
#include <zephyr/bluetooth/gatt.h>
#include <zephyr/shell/shell.h>
#include "host/shell/bt.h"
#include "common/bt_shell_private.h"
#if defined(CONFIG_BT_GATT_CLIENT) || defined(CONFIG_BT_GATT_DYNAMIC_DB)
extern uint8_t selected_id;
static struct write_stats {
uint32_t count;
uint32_t len;
uint32_t total;
uint32_t rate;
} write_stats;
static void update_write_stats(uint16_t len)
{
static uint32_t cycle_stamp;
uint32_t delta;
delta = k_cycle_get_32() - cycle_stamp;
delta = (uint32_t)k_cyc_to_ns_floor64(delta);
if (!delta) {
delta = 1;
}
write_stats.count++;
write_stats.total += len;
/* if last data rx-ed was greater than 1 second in the past,
* reset the metrics.
*/
if (delta > 1000000000) {
write_stats.len = 0U;
write_stats.rate = 0U;
cycle_stamp = k_cycle_get_32();
} else {
write_stats.len += len;
write_stats.rate = ((uint64_t)write_stats.len << 3) *
1000000000U / delta;
}
}
#if defined(CONFIG_BT_EATT)
#define SET_CHAN_OPT_ANY(params) (params).chan_opt = BT_ATT_CHAN_OPT_NONE
#else
#define SET_CHAN_OPT_ANY(params)
#endif /* CONFIG_BT_EATT */
static void print_write_stats(void)
{
bt_shell_print("Write #%u: %u bytes (%u bps)",
write_stats.count, write_stats.total, write_stats.rate);
}
#endif /* CONFIG_BT_GATT_CLIENT || CONFIG_BT_GATT_DYNAMIC_DB */
#if defined(CONFIG_BT_GATT_CLIENT)
static void reset_write_stats(void)
{
memset(&write_stats, 0, sizeof(write_stats));
}
/* This variable is write-locked when `(exchange_params.func != NULL)`.
* Must be zero-initialized when unlocked.
*/
static struct bt_gatt_exchange_params exchange_params;
static void exchange_func(struct bt_conn *conn, uint8_t err,
struct bt_gatt_exchange_params *params)
{
bt_shell_print("Exchange %s", err == 0U ? "successful" : "failed");
/* Release global `exchange_params`. */
__ASSERT_NO_MSG(params == &exchange_params);
(void)memset(params, 0, sizeof(*params));
}
static int cmd_exchange_mtu(const struct shell *sh,
size_t argc, char *argv[])
{
int err;
if (!default_conn) {
shell_print(sh, "Not connected");
return -ENOEXEC;
}
if (exchange_params.func) {
shell_print(sh, "Shell command busy. A previous invocation is in progress.");
return -EBUSY;
}
exchange_params.func = exchange_func;
err = bt_gatt_exchange_mtu(default_conn, &exchange_params);
if (err) {
/* Release global `exchange_params`. */
exchange_params.func = NULL;
}
if (err == -EALREADY) {
shell_print(sh, "Already exchanged");
} else if (err) {
shell_print(sh, "Exchange failed (err %d)", err);
} else {
shell_print(sh, "Exchange pending");
}
return err;
}
static struct bt_gatt_discover_params discover_params;
static struct bt_uuid_16 uuid = BT_UUID_INIT_16(0);
static void print_chrc_props(uint8_t properties)
{
bt_shell_print("Properties: ");
if (properties & BT_GATT_CHRC_BROADCAST) {
bt_shell_print("[bcast]");
}
if (properties & BT_GATT_CHRC_READ) {
bt_shell_print("[read]");
}
if (properties & BT_GATT_CHRC_WRITE) {
bt_shell_print("[write]");
}
if (properties & BT_GATT_CHRC_WRITE_WITHOUT_RESP) {
bt_shell_print("[write w/w rsp]");
}
if (properties & BT_GATT_CHRC_NOTIFY) {
bt_shell_print("[notify]");
}
if (properties & BT_GATT_CHRC_INDICATE) {
bt_shell_print("[indicate]");
}
if (properties & BT_GATT_CHRC_AUTH) {
bt_shell_print("[auth]");
}
if (properties & BT_GATT_CHRC_EXT_PROP) {
bt_shell_print("[ext prop]");
}
bt_shell_print("");
}
static uint8_t discover_func(struct bt_conn *conn,
const struct bt_gatt_attr *attr,
struct bt_gatt_discover_params *params)
{
struct bt_gatt_service_val *gatt_service;
struct bt_gatt_chrc *gatt_chrc;
struct bt_gatt_include *gatt_include;
char str[BT_UUID_STR_LEN];
if (!attr) {
bt_shell_print("Discover complete");
(void)memset(params, 0, sizeof(*params));
return BT_GATT_ITER_STOP;
}
switch (params->type) {
case BT_GATT_DISCOVER_SECONDARY:
case BT_GATT_DISCOVER_PRIMARY:
gatt_service = attr->user_data;
bt_uuid_to_str(gatt_service->uuid, str, sizeof(str));
bt_shell_print("Service %s found: start handle %x, end_handle %x",
str, attr->handle, gatt_service->end_handle);
break;
case BT_GATT_DISCOVER_CHARACTERISTIC:
gatt_chrc = attr->user_data;
bt_uuid_to_str(gatt_chrc->uuid, str, sizeof(str));
bt_shell_print("Characteristic %s found: handle %x",
str, attr->handle);
print_chrc_props(gatt_chrc->properties);
break;
case BT_GATT_DISCOVER_INCLUDE:
gatt_include = attr->user_data;
bt_uuid_to_str(gatt_include->uuid, str, sizeof(str));
bt_shell_print("Include %s found: handle %x, start %x, end %x", str, attr->handle,
gatt_include->start_handle, gatt_include->end_handle);
break;
default:
bt_uuid_to_str(attr->uuid, str, sizeof(str));
bt_shell_print("Descriptor %s found: handle %x", str, attr->handle);
break;
}
return BT_GATT_ITER_CONTINUE;
}
static int cmd_discover(const struct shell *sh, size_t argc, char *argv[])
{
int err;
if (!default_conn) {
shell_error(sh, "Not connected");
return -ENOEXEC;
}
if (discover_params.func) {
shell_print(sh, "Discover ongoing");
return -ENOEXEC;
}
discover_params.func = discover_func;
discover_params.start_handle = BT_ATT_FIRST_ATTRIBUTE_HANDLE;
discover_params.end_handle = BT_ATT_LAST_ATTRIBUTE_HANDLE;
SET_CHAN_OPT_ANY(discover_params);
if (argc > 1) {
/* Only set the UUID if the value is valid (non zero) */
uuid.val = strtoul(argv[1], NULL, 16);
if (uuid.val) {
discover_params.uuid = &uuid.uuid;
}
}
if (argc > 2) {
discover_params.start_handle = strtoul(argv[2], NULL, 16);
if (argc > 3) {
discover_params.end_handle = strtoul(argv[3], NULL, 16);
}
}
if (!strcmp(argv[0], "discover")) {
discover_params.type = BT_GATT_DISCOVER_ATTRIBUTE;
} else if (!strcmp(argv[0], "discover-secondary")) {
discover_params.type = BT_GATT_DISCOVER_SECONDARY;
} else if (!strcmp(argv[0], "discover-include")) {
discover_params.type = BT_GATT_DISCOVER_INCLUDE;
} else if (!strcmp(argv[0], "discover-characteristic")) {
discover_params.type = BT_GATT_DISCOVER_CHARACTERISTIC;
} else if (!strcmp(argv[0], "discover-descriptor")) {
discover_params.type = BT_GATT_DISCOVER_DESCRIPTOR;
} else {
discover_params.type = BT_GATT_DISCOVER_PRIMARY;
}
err = bt_gatt_discover(default_conn, &discover_params);
if (err) {
shell_error(sh, "Discover failed (err %d)", err);
} else {
shell_print(sh, "Discover pending");
}
return err;
}
static struct bt_gatt_read_params read_params;
static uint8_t read_func(struct bt_conn *conn, uint8_t err,
struct bt_gatt_read_params *params,
const void *data, uint16_t length)
{
bt_shell_print("Read complete: err 0x%02x length %u", err, length);
if (!data) {
(void)memset(params, 0, sizeof(*params));
return BT_GATT_ITER_STOP;
} else {
bt_shell_hexdump(data, length);
}
return BT_GATT_ITER_CONTINUE;
}
static int cmd_read(const struct shell *sh, size_t argc, char *argv[])
{
int err;
if (!default_conn) {
shell_error(sh, "Not connected");
return -ENOEXEC;
}
if (read_params.func) {
shell_print(sh, "Read ongoing");
return -ENOEXEC;
}
read_params.func = read_func;
read_params.handle_count = 1;
read_params.single.handle = strtoul(argv[1], NULL, 16);
read_params.single.offset = 0U;
SET_CHAN_OPT_ANY(read_params);
if (argc > 2) {
read_params.single.offset = strtoul(argv[2], NULL, 16);
}
err = bt_gatt_read(default_conn, &read_params);
if (err) {
shell_error(sh, "Read failed (err %d)", err);
} else {
shell_print(sh, "Read pending");
}
return err;
}
static int cmd_mread(const struct shell *sh, size_t argc, char *argv[])
{
uint16_t h[8];
size_t i;
int err;
if (!default_conn) {
shell_error(sh, "Not connected");
return -ENOEXEC;
}
if (read_params.func) {
shell_print(sh, "Read ongoing");
return -ENOEXEC;
}
if ((argc - 1) > ARRAY_SIZE(h)) {
shell_print(sh, "Enter max %zu handle items to read", ARRAY_SIZE(h));
return -EINVAL;
}
for (i = 0; i < argc - 1; i++) {
h[i] = strtoul(argv[i + 1], NULL, 16);
}
read_params.func = read_func;
read_params.handle_count = i;
read_params.multiple.handles = h;
read_params.multiple.variable = true;
SET_CHAN_OPT_ANY(read_params);
err = bt_gatt_read(default_conn, &read_params);
if (err) {
shell_error(sh, "GATT multiple read request failed (err %d)", err);
}
return err;
}
static int cmd_read_uuid(const struct shell *sh, size_t argc, char *argv[])
{
int err;
if (!default_conn) {
shell_error(sh, "Not connected");
return -ENOEXEC;
}
if (read_params.func) {
shell_print(sh, "Read ongoing");
return -ENOEXEC;
}
read_params.func = read_func;
read_params.handle_count = 0;
read_params.by_uuid.start_handle = BT_ATT_FIRST_ATTRIBUTE_HANDLE;
read_params.by_uuid.end_handle = BT_ATT_LAST_ATTRIBUTE_HANDLE;
SET_CHAN_OPT_ANY(read_params);
if (argc > 1) {
uuid.val = strtoul(argv[1], NULL, 16);
if (uuid.val) {
read_params.by_uuid.uuid = &uuid.uuid;
}
}
if (argc > 2) {
read_params.by_uuid.start_handle = strtoul(argv[2], NULL, 16);
if (argc > 3) {
read_params.by_uuid.end_handle = strtoul(argv[3], NULL, 16);
}
}
err = bt_gatt_read(default_conn, &read_params);
if (err) {
shell_error(sh, "Read failed (err %d)", err);
} else {
shell_print(sh, "Read pending");
}
return err;
}
static struct bt_gatt_write_params write_params;
static uint8_t gatt_write_buf[BT_ATT_MAX_ATTRIBUTE_LEN];
static void write_func(struct bt_conn *conn, uint8_t err,
struct bt_gatt_write_params *params)
{
bt_shell_print("Write complete: err 0x%02x", err);
(void)memset(&write_params, 0, sizeof(write_params));
}
static int cmd_write(const struct shell *sh, size_t argc, char *argv[])
{
int err;
uint16_t handle, offset;
if (!default_conn) {
shell_error(sh, "Not connected");
return -ENOEXEC;
}
if (write_params.func) {
shell_error(sh, "Write ongoing");
return -ENOEXEC;
}
handle = strtoul(argv[1], NULL, 16);
offset = strtoul(argv[2], NULL, 16);
write_params.length = hex2bin(argv[3], strlen(argv[3]),
gatt_write_buf, sizeof(gatt_write_buf));
if (write_params.length == 0) {
shell_error(sh, "No data set");
return -ENOEXEC;
}
write_params.data = gatt_write_buf;
write_params.handle = handle;
write_params.offset = offset;
write_params.func = write_func;
SET_CHAN_OPT_ANY(write_params);
err = bt_gatt_write(default_conn, &write_params);
if (err) {
write_params.func = NULL;
shell_error(sh, "Write failed (err %d)", err);
} else {
shell_print(sh, "Write pending");
}
return err;
}
static void write_without_rsp_cb(struct bt_conn *conn, void *user_data)
{
uint16_t len = POINTER_TO_UINT(user_data);
update_write_stats(len);
print_write_stats();
}
static int cmd_write_without_rsp(const struct shell *sh,
size_t argc, char *argv[])
{
uint16_t handle;
uint16_t repeat;
int err;
uint16_t len;
bool sign;
bt_gatt_complete_func_t func = NULL;
if (!default_conn) {
shell_error(sh, "Not connected");
return -ENOEXEC;
}
sign = !strcmp(argv[0], "signed-write");
if (!sign) {
if (!strcmp(argv[0], "write-without-response-cb")) {
func = write_without_rsp_cb;
reset_write_stats();
}
}
handle = strtoul(argv[1], NULL, 16);
gatt_write_buf[0] = strtoul(argv[2], NULL, 16);
len = 1U;
if (argc > 3) {
int i;
len = MIN(strtoul(argv[3], NULL, 16), sizeof(gatt_write_buf));
for (i = 1; i < len; i++) {
gatt_write_buf[i] = gatt_write_buf[0];
}
}
repeat = 0U;
err = 0;
if (argc > 4) {
repeat = strtoul(argv[4], NULL, 16);
}
if (!repeat) {
repeat = 1U;
}
while (repeat--) {
err = bt_gatt_write_without_response_cb(default_conn, handle,
gatt_write_buf, len,
sign, func,
UINT_TO_POINTER(len));
if (err) {
break;
}
k_yield();
}
shell_print(sh, "Write Complete (err %d)", err);
return err;
}
static struct bt_gatt_subscribe_params subscribe_params;
static uint8_t notify_func(struct bt_conn *conn,
struct bt_gatt_subscribe_params *params,
const void *data, uint16_t length)
{
if (!data) {
bt_shell_print("Unsubscribed");
params->value_handle = 0U;
return BT_GATT_ITER_STOP;
}
bt_shell_print("Notification: value_handle %u, length %u",
params->value_handle, length);
bt_shell_hexdump(data, length);
return BT_GATT_ITER_CONTINUE;
}
static int cmd_subscribe(const struct shell *sh, size_t argc, char *argv[])
{
int err;
if (subscribe_params.value_handle) {
shell_error(sh, "Cannot subscribe: subscription to %x already exists",
subscribe_params.value_handle);
return -ENOEXEC;
}
if (!default_conn) {
shell_error(sh, "Not connected");
return -ENOEXEC;
}
subscribe_params.ccc_handle = strtoul(argv[1], NULL, 16);
subscribe_params.value_handle = strtoul(argv[2], NULL, 16);
subscribe_params.value = BT_GATT_CCC_NOTIFY;
subscribe_params.notify = notify_func;
SET_CHAN_OPT_ANY(subscribe_params);
#if defined(CONFIG_BT_GATT_AUTO_DISCOVER_CCC)
if (subscribe_params.ccc_handle == BT_GATT_AUTO_DISCOVER_CCC_HANDLE) {
static struct bt_gatt_discover_params disc_params;
subscribe_params.disc_params = &disc_params;
subscribe_params.end_handle = 0xFFFF;
}
#endif /* CONFIG_BT_GATT_AUTO_DISCOVER_CCC */
if (argc > 3 && !strcmp(argv[3], "ind")) {
subscribe_params.value = BT_GATT_CCC_INDICATE;
}
err = bt_gatt_subscribe(default_conn, &subscribe_params);
if (err) {
subscribe_params.value_handle = 0U;
shell_error(sh, "Subscribe failed (err %d)", err);
} else {
shell_print(sh, "Subscribed");
}
return err;
}
static int cmd_resubscribe(const struct shell *sh, size_t argc,
char *argv[])
{
bt_addr_le_t addr;
int err;
if (subscribe_params.value_handle) {
shell_error(sh, "Cannot resubscribe: subscription to %x already exists",
subscribe_params.value_handle);
return -ENOEXEC;
}
err = bt_addr_le_from_str(argv[1], argv[2], &addr);
if (err) {
shell_error(sh, "Invalid peer address (err %d)", err);
return -ENOEXEC;
}
subscribe_params.ccc_handle = strtoul(argv[3], NULL, 16);
subscribe_params.value_handle = strtoul(argv[4], NULL, 16);
subscribe_params.value = BT_GATT_CCC_NOTIFY;
subscribe_params.notify = notify_func;
SET_CHAN_OPT_ANY(subscribe_params);
if (argc > 5 && !strcmp(argv[5], "ind")) {
subscribe_params.value = BT_GATT_CCC_INDICATE;
}
err = bt_gatt_resubscribe(selected_id, &addr, &subscribe_params);
if (err) {
subscribe_params.value_handle = 0U;
shell_error(sh, "Resubscribe failed (err %d)", err);
} else {
shell_print(sh, "Resubscribed");
}
return err;
}
static int cmd_unsubscribe(const struct shell *sh,
size_t argc, char *argv[])
{
int err;
if (!default_conn) {
shell_error(sh, "Not connected");
return -ENOEXEC;
}
if (!subscribe_params.value_handle) {
shell_error(sh, "No subscription found");
return -ENOEXEC;
}
err = bt_gatt_unsubscribe(default_conn, &subscribe_params);
if (err) {
shell_error(sh, "Unsubscribe failed (err %d)", err);
} else {
shell_print(sh, "Unsubscribe success");
}
return err;
}
#endif /* CONFIG_BT_GATT_CLIENT */
static struct db_stats {
uint16_t svc_count;
uint16_t attr_count;
uint16_t chrc_count;
uint16_t ccc_count;
} stats;
static uint8_t print_attr(const struct bt_gatt_attr *attr, uint16_t handle,
void *user_data)
{
const struct shell *sh = user_data;
char str[BT_UUID_STR_LEN];
stats.attr_count++;
if (!bt_uuid_cmp(attr->uuid, BT_UUID_GATT_PRIMARY) ||
!bt_uuid_cmp(attr->uuid, BT_UUID_GATT_SECONDARY)) {
stats.svc_count++;
}
if (!bt_uuid_cmp(attr->uuid, BT_UUID_GATT_CHRC)) {
stats.chrc_count++;
}
if (!bt_uuid_cmp(attr->uuid, BT_UUID_GATT_CCC) &&
attr->write == bt_gatt_attr_write_ccc) {
stats.ccc_count++;
}
bt_uuid_to_str(attr->uuid, str, sizeof(str));
shell_print(sh, "attr %p handle 0x%04x uuid %s perm 0x%02x",
attr, handle, str, attr->perm);
return BT_GATT_ITER_CONTINUE;
}
static int cmd_show_db(const struct shell *sh, size_t argc, char *argv[])
{
struct bt_uuid_16 uuid16;
size_t total_len;
memset(&stats, 0, sizeof(stats));
if (argc > 1) {
uint16_t num_matches = 0;
uuid16.uuid.type = BT_UUID_TYPE_16;
uuid16.val = strtoul(argv[1], NULL, 16);
if (argc > 2) {
num_matches = strtoul(argv[2], NULL, 10);
}
bt_gatt_foreach_attr_type(0x0001, 0xffff, &uuid16.uuid, NULL,
num_matches, print_attr,
(void *)sh);
return 0;
}
bt_gatt_foreach_attr(0x0001, 0xffff, print_attr, (void *)sh);
if (!stats.attr_count) {
shell_print(sh, "No attribute found");
return 0;
}
total_len = stats.svc_count * sizeof(struct bt_gatt_service);
total_len += stats.chrc_count * sizeof(struct bt_gatt_chrc);
total_len += stats.attr_count * sizeof(struct bt_gatt_attr);
total_len += stats.ccc_count * sizeof(struct bt_gatt_ccc_managed_user_data);
shell_print(sh, "=================================================");
shell_print(sh, "Total: %u services %u attributes (%zu bytes)",
stats.svc_count, stats.attr_count, total_len);
return 0;
}
#if defined(CONFIG_BT_GATT_DYNAMIC_DB)
/* Custom Service Variables */
static const struct bt_uuid_128 vnd_uuid = BT_UUID_INIT_128(
BT_UUID_128_ENCODE(0x12345678, 0x1234, 0x5678, 0x1234, 0x56789abcdef0));
static const struct bt_uuid_128 vnd_auth_uuid = BT_UUID_INIT_128(
BT_UUID_128_ENCODE(0x12345678, 0x1234, 0x5678, 0x1234, 0x56789abcdef2));
static const struct bt_uuid_128 vnd_long_uuid1 = BT_UUID_INIT_128(
BT_UUID_128_ENCODE(0x12345678, 0x1234, 0x5678, 0x1234, 0x56789abcdef3));
static const struct bt_uuid_128 vnd_long_uuid2 = BT_UUID_INIT_128(
BT_UUID_128_ENCODE(0x12345678, 0x1234, 0x5678, 0x12340, 0x5678cefaadde));
static uint8_t vnd_value[] = { 'V', 'e', 'n', 'd', 'o', 'r' };
static const struct bt_uuid_128 vnd1_uuid = BT_UUID_INIT_128(
BT_UUID_128_ENCODE(0x12345678, 0x1234, 0x5678, 0x12340, 0x56789abcdef4));
static const struct bt_uuid_128 vnd1_echo_uuid = BT_UUID_INIT_128(
BT_UUID_128_ENCODE(0x12345678, 0x1234, 0x5678, 0x12340, 0x56789abcdef5));
static uint8_t echo_enabled;
static void vnd1_ccc_cfg_changed(const struct bt_gatt_attr *attr, uint16_t value)
{
echo_enabled = (value == BT_GATT_CCC_NOTIFY) ? 1 : 0;
}
static ssize_t write_vnd1(struct bt_conn *conn, const struct bt_gatt_attr *attr,
const void *buf, uint16_t len, uint16_t offset,
uint8_t flags)
{
if (echo_enabled) {
bt_shell_print("Echo attr len %u", len);
bt_gatt_notify(conn, attr, buf, len);
}
return len;
}
static ssize_t read_vnd(struct bt_conn *conn, const struct bt_gatt_attr *attr,
void *buf, uint16_t len, uint16_t offset)
{
const char *value = attr->user_data;
return bt_gatt_attr_read(conn, attr, buf, len, offset, value,
strlen(value));
}
static ssize_t write_vnd(struct bt_conn *conn, const struct bt_gatt_attr *attr,
const void *buf, uint16_t len, uint16_t offset,
uint8_t flags)
{
uint8_t *value = attr->user_data;
if (offset + len > sizeof(vnd_value)) {
return BT_GATT_ERR(BT_ATT_ERR_INVALID_OFFSET);
}
memcpy(value + offset, buf, len);
return len;
}
#define MAX_DATA 30
static uint8_t vnd_long_value1[MAX_DATA] = { 'V', 'e', 'n', 'd', 'o', 'r' };
static uint8_t vnd_long_value2[MAX_DATA] = { 'S', 't', 'r', 'i', 'n', 'g' };
static ssize_t read_long_vnd(struct bt_conn *conn,
const struct bt_gatt_attr *attr, void *buf,
uint16_t len, uint16_t offset)
{
uint8_t *value = attr->user_data;
return bt_gatt_attr_read(conn, attr, buf, len, offset, value,
sizeof(vnd_long_value1));
}
static ssize_t write_long_vnd(struct bt_conn *conn,
const struct bt_gatt_attr *attr, const void *buf,
uint16_t len, uint16_t offset, uint8_t flags)
{
uint8_t *value = attr->user_data;
if (flags & BT_GATT_WRITE_FLAG_PREPARE) {
return 0;
}
if (offset + len > sizeof(vnd_long_value1)) {
return BT_GATT_ERR(BT_ATT_ERR_INVALID_OFFSET);
}
/* Copy to buffer */
memcpy(value + offset, buf, len);
return len;
}
static struct bt_gatt_attr vnd_attrs[] = {
/* Vendor Primary Service Declaration */
BT_GATT_PRIMARY_SERVICE(&vnd_uuid),
BT_GATT_CHARACTERISTIC(&vnd_auth_uuid.uuid,
BT_GATT_CHRC_READ | BT_GATT_CHRC_WRITE,
BT_GATT_PERM_READ_AUTHEN |
BT_GATT_PERM_WRITE_AUTHEN,
read_vnd, write_vnd, vnd_value),
BT_GATT_CHARACTERISTIC(&vnd_long_uuid1.uuid, BT_GATT_CHRC_READ |
BT_GATT_CHRC_WRITE | BT_GATT_CHRC_EXT_PROP,
BT_GATT_PERM_READ | BT_GATT_PERM_WRITE |
BT_GATT_PERM_PREPARE_WRITE,
read_long_vnd, write_long_vnd,
&vnd_long_value1),
BT_GATT_CHARACTERISTIC(&vnd_long_uuid2.uuid, BT_GATT_CHRC_READ |
BT_GATT_CHRC_WRITE | BT_GATT_CHRC_EXT_PROP,
BT_GATT_PERM_READ | BT_GATT_PERM_WRITE |
BT_GATT_PERM_PREPARE_WRITE,
read_long_vnd, write_long_vnd,
&vnd_long_value2),
};
static struct bt_gatt_service vnd_svc = BT_GATT_SERVICE(vnd_attrs);
static struct bt_gatt_attr vnd1_attrs[] = {
/* Vendor Primary Service Declaration */
BT_GATT_PRIMARY_SERVICE(&vnd1_uuid),
BT_GATT_CHARACTERISTIC(&vnd1_echo_uuid.uuid,
BT_GATT_CHRC_WRITE_WITHOUT_RESP |
BT_GATT_CHRC_NOTIFY,
BT_GATT_PERM_WRITE, NULL, write_vnd1, NULL),
BT_GATT_CCC(vnd1_ccc_cfg_changed,
BT_GATT_PERM_READ | BT_GATT_PERM_WRITE),
};
static struct bt_gatt_service vnd1_svc = BT_GATT_SERVICE(vnd1_attrs);
static int cmd_register_test_svc(const struct shell *sh,
size_t argc, char *argv[])
{
char str[BT_UUID_STR_LEN];
int err;
bt_uuid_to_str(&vnd_uuid.uuid, str, sizeof(str));
err = bt_gatt_service_register(&vnd_svc);
if (!err) {
shell_print(sh, "Registered test vendor service %s", str);
} else {
shell_error(sh, "Failed to register test vendor service %s (%d)", str, err);
}
bt_uuid_to_str(&vnd1_uuid.uuid, str, sizeof(str));
err = bt_gatt_service_register(&vnd1_svc);
if (!err) {
shell_print(sh, "Registered test vendor service %s", str);
} else {
shell_error(sh, "Failed to register test vendor service %s (%d)", str, err);
}
return 0;
}
static int cmd_unregister_test_svc(const struct shell *sh,
size_t argc, char *argv[])
{
char str[BT_UUID_STR_LEN];
int err;
bt_uuid_to_str(&vnd_uuid.uuid, str, sizeof(str));
err = bt_gatt_service_unregister(&vnd_svc);
if (!err) {
shell_print(sh, "Unregistered test vendor service %s", str);
} else {
shell_error(sh, "Failed to unregister test vendor service %s (%d)", str, err);
}
bt_uuid_to_str(&vnd1_uuid.uuid, str, sizeof(str));
err = bt_gatt_service_unregister(&vnd1_svc);
if (!err) {
shell_print(sh, "Unregistered test vendor service %s", str);
} else {
shell_error(sh, "Failed to unregister test vendor service %s (%d)", str, err);
}
return 0;
}
static uint8_t found_attr(const struct bt_gatt_attr *attr, uint16_t handle,
void *user_data)
{
const struct bt_gatt_attr **found = user_data;
*found = attr;
return BT_GATT_ITER_STOP;
}
static const struct bt_gatt_attr *find_attr(uint16_t handle)
{
const struct bt_gatt_attr *attr = NULL;
bt_gatt_foreach_attr(handle, handle, found_attr, &attr);
return attr;
}
static int cmd_notify(const struct shell *sh, size_t argc, char *argv[])
{
const struct bt_gatt_attr *attr;
int err;
size_t data_len;
unsigned long handle;
static char data[BT_ATT_MAX_ATTRIBUTE_LEN];
const char *arg_handle = argv[1];
const char *arg_data = argv[2];
size_t arg_data_len = strlen(arg_data);
err = 0;
handle = shell_strtoul(arg_handle, 16, &err);
if (err) {
shell_error(sh, "Handle '%s': Not a valid hex number.", arg_handle);
return -EINVAL;
}
if (!IN_RANGE(handle, BT_ATT_FIRST_ATTRIBUTE_HANDLE, BT_ATT_LAST_ATTRIBUTE_HANDLE)) {
shell_error(sh, "Handle 0x%lx: Impossible value.", handle);
return -EINVAL;
}
if ((arg_data_len / 2) > BT_ATT_MAX_ATTRIBUTE_LEN) {
shell_error(sh, "Data: Size exceeds legal attribute size.");
return -EINVAL;
}
data_len = hex2bin(arg_data, arg_data_len, data, sizeof(data));
if (data_len == 0 && arg_data_len != 0) {
shell_error(sh, "Data: Bad hex.");
return -EINVAL;
}
attr = find_attr(handle);
if (!attr) {
shell_error(sh, "Handle 0x%lx: Local attribute not found.", handle);
return -EINVAL;
}
err = bt_gatt_notify(NULL, attr, data, data_len);
if (err) {
shell_error(sh, "bt_gatt_notify errno %d (%s)", -err, strerror(-err));
}
return err;
}
#if defined(CONFIG_BT_GATT_NOTIFY_MULTIPLE)
static void notify_cb(struct bt_conn *conn, void *user_data)
{
const struct shell *sh = user_data;
shell_print(sh, "Nofication sent to conn %p", conn);
}
static int cmd_notify_mult(const struct shell *sh, size_t argc, char *argv[])
{
const size_t max_cnt = CONFIG_BT_L2CAP_TX_BUF_COUNT;
struct bt_gatt_notify_params params[max_cnt];
const size_t min_cnt = 1U;
unsigned long data;
unsigned long cnt;
uint16_t cnt_u16;
int err = 0;
if (!default_conn) {
shell_error(sh, "Not connected.");
return -ENOEXEC;
}
if (!echo_enabled) {
shell_error(sh, "No clients have enabled notifications for the vnd1_echo CCC.");
return -ENOEXEC;
}
cnt = shell_strtoul(argv[1], 10, &err);
if (err != 0) {
shell_error(sh, "Invalid count parameter: %s", argv[1]);
return -err;
}
if (!IN_RANGE(cnt, min_cnt, max_cnt)) {
shell_error(sh, "Invalid count value %lu (range %zu to %zu)",
cnt, min_cnt, max_cnt);
return -ENOEXEC;
}
cnt_u16 = (uint16_t)cnt;
if (argc > 2) {
data = shell_strtoul(argv[2], 16, &err);
if (err != 0) {
shell_error(sh, "Invalid data parameter: %s", argv[1]);
return -err;
}
}
(void)memset(params, 0, sizeof(params));
for (uint16_t i = 0U; i < cnt_u16; i++) {
params[i].uuid = 0;
params[i].attr = vnd1_attrs;
params[i].data = &data;
params[i].len = sizeof(data);
params[i].func = notify_cb;
params[i].user_data = (void *)sh;
}
err = bt_gatt_notify_multiple(default_conn, cnt_u16, params);
if (err != 0) {
shell_error(sh, "bt_gatt_notify_multiple failed: %d", err);
} else {
shell_print(sh, "Send %u notifications", cnt_u16);
}
return err;
}
#endif /* CONFIG_BT_GATT_NOTIFY_MULTIPLE */
static const struct bt_uuid_128 met_svc_uuid = BT_UUID_INIT_128(
BT_UUID_128_ENCODE(0x12345678, 0x1234, 0x5678, 0x1234, 0x56789abcde01));
static const struct bt_uuid_128 met_char_uuid = BT_UUID_INIT_128(
BT_UUID_128_ENCODE(0x12345678, 0x1234, 0x5678, 0x1234, 0x56789abcde02));
static uint8_t met_char_value[BT_ATT_MAX_ATTRIBUTE_LEN] = {
'M', 'e', 't', 'r', 'i', 'c', 's' };
static ssize_t read_met(struct bt_conn *conn, const struct bt_gatt_attr *attr,
void *buf, uint16_t len, uint16_t offset)
{
const char *value = attr->user_data;
uint16_t value_len;
value_len = MIN(strlen(value), BT_ATT_MAX_ATTRIBUTE_LEN);
return bt_gatt_attr_read(conn, attr, buf, len, offset, value,
value_len);
}
static ssize_t write_met(struct bt_conn *conn, const struct bt_gatt_attr *attr,
const void *buf, uint16_t len, uint16_t offset,
uint8_t flags)
{
uint8_t *value = attr->user_data;
if (offset + len > sizeof(met_char_value)) {
return BT_GATT_ERR(BT_ATT_ERR_INVALID_OFFSET);
}
memcpy(value + offset, buf, len);
update_write_stats(len);
return len;
}
static struct bt_gatt_attr met_attrs[] = {
BT_GATT_PRIMARY_SERVICE(&met_svc_uuid),
BT_GATT_CHARACTERISTIC(&met_char_uuid.uuid,
BT_GATT_CHRC_READ | BT_GATT_CHRC_WRITE,
BT_GATT_PERM_READ | BT_GATT_PERM_WRITE,
read_met, write_met, met_char_value),
};
static struct bt_gatt_service met_svc = BT_GATT_SERVICE(met_attrs);
static int cmd_metrics(const struct shell *sh, size_t argc, char *argv[])
{
int err = 0;
if (argc < 2) {
print_write_stats();
return 0;
}
if (!strcmp(argv[1], "on")) {
shell_print(sh, "Registering GATT metrics test Service.");
err = bt_gatt_service_register(&met_svc);
} else if (!strcmp(argv[1], "off")) {
shell_print(sh, "Unregistering GATT metrics test Service.");
err = bt_gatt_service_unregister(&met_svc);
} else {
shell_error(sh, "Incorrect value: %s", argv[1]);
shell_help(sh);
return -ENOEXEC;
}
if (!err) {
shell_print(sh, "GATT write cmd metrics %s.", argv[1]);
}
return err;
}
#endif /* CONFIG_BT_GATT_DYNAMIC_DB */
static uint8_t get_cb(const struct bt_gatt_attr *attr, uint16_t handle,
void *user_data)
{
struct shell *sh = user_data;
uint8_t buf[256];
ssize_t ret;
char str[BT_UUID_STR_LEN];
bt_uuid_to_str(attr->uuid, str, sizeof(str));
shell_print(sh, "attr %p uuid %s perm 0x%02x", attr, str,
attr->perm);
if (!attr->read) {
return BT_GATT_ITER_CONTINUE;
}
ret = attr->read(NULL, attr, (void *)buf, sizeof(buf), 0);
if (ret < 0) {
shell_print(sh, "Failed to read: %zd", ret);
return BT_GATT_ITER_STOP;
}
shell_hexdump(sh, buf, ret);
return BT_GATT_ITER_CONTINUE;
}
static int cmd_get(const struct shell *sh, size_t argc, char *argv[])
{
uint16_t start, end;
start = strtoul(argv[1], NULL, 16);
end = start;
if (argc > 2) {
end = strtoul(argv[2], NULL, 16);
}
bt_gatt_foreach_attr(start, end, get_cb, (void *)sh);
return 0;
}
struct set_data {
const struct shell *sh;
size_t argc;
char **argv;
int err;
};
static uint8_t set_cb(const struct bt_gatt_attr *attr, uint16_t handle,
void *user_data)
{
struct set_data *data = user_data;
uint8_t buf[256];
size_t i;
ssize_t ret;
if (!attr->write) {
shell_error(data->sh, "Write not supported");
data->err = -ENOENT;
return BT_GATT_ITER_CONTINUE;
}
for (i = 0; i < data->argc; i++) {
buf[i] = strtoul(data->argv[i], NULL, 16);
}
ret = attr->write(NULL, attr, (void *)buf, i, 0, 0);
if (ret < 0) {
data->err = ret;
shell_error(data->sh, "Failed to write: %zd", ret);
return BT_GATT_ITER_STOP;
}
return BT_GATT_ITER_CONTINUE;
}
static int cmd_set(const struct shell *sh, size_t argc, char *argv[])
{
uint16_t handle;
struct set_data data;
handle = strtoul(argv[1], NULL, 16);
data.sh = sh;
data.argc = argc - 2;
data.argv = argv + 2;
data.err = 0;
bt_gatt_foreach_attr(handle, handle, set_cb, &data);
if (data.err < 0) {
return -ENOEXEC;
}
bt_gatt_foreach_attr(handle, handle, get_cb, (void *)sh);
return 0;
}
int cmd_att_mtu(const struct shell *sh, size_t argc, char *argv[])
{
uint16_t mtu;
if (default_conn) {
mtu = bt_gatt_get_mtu(default_conn);
shell_print(sh, "MTU size: %u", mtu);
} else {
shell_print(sh, "No default connection");
}
return 0;
}
#define HELP_NONE "[none]"
#define HELP_ADDR_LE "<address: XX:XX:XX:XX:XX:XX> <type: (public|random)>"
SHELL_STATIC_SUBCMD_SET_CREATE(gatt_cmds,
#if defined(CONFIG_BT_GATT_CLIENT)
SHELL_CMD_ARG(discover, NULL,
"[UUID] [start handle] [end handle]", cmd_discover, 1, 3),
SHELL_CMD_ARG(discover-characteristic, NULL,
"[UUID] [start handle] [end handle]", cmd_discover, 1, 3),
SHELL_CMD_ARG(discover-descriptor, NULL,
"[UUID] [start handle] [end handle]", cmd_discover, 1, 3),
SHELL_CMD_ARG(discover-include, NULL,
"[UUID] [start handle] [end handle]", cmd_discover, 1, 3),
SHELL_CMD_ARG(discover-primary, NULL,
"[UUID] [start handle] [end handle]", cmd_discover, 1, 3),
SHELL_CMD_ARG(discover-secondary, NULL,
"[UUID] [start handle] [end handle]", cmd_discover, 1, 3),
SHELL_CMD_ARG(exchange-mtu, NULL, HELP_NONE, cmd_exchange_mtu, 1, 0),
SHELL_CMD_ARG(read, NULL, "<handle> [offset]", cmd_read, 2, 1),
SHELL_CMD_ARG(read-uuid, NULL, "<UUID> [start handle] [end handle]",
cmd_read_uuid, 2, 2),
SHELL_CMD_ARG(read-multiple, NULL, "<handle 1> <handle 2> ...",
cmd_mread, 2, -1),
SHELL_CMD_ARG(signed-write, NULL, "<handle> <data> [length] [repeat]",
cmd_write_without_rsp, 3, 2),
SHELL_CMD_ARG(subscribe, NULL, "<CCC handle> <value handle> [ind]",
cmd_subscribe, 3, 1),
SHELL_CMD_ARG(resubscribe, NULL, HELP_ADDR_LE" <CCC handle> "
"<value handle> [ind]", cmd_resubscribe, 5, 1),
SHELL_CMD_ARG(write, NULL, "<handle> <offset> <data>", cmd_write, 4, 0),
SHELL_CMD_ARG(write-without-response, NULL,
"<handle> <data> [length] [repeat]",
cmd_write_without_rsp, 3, 2),
SHELL_CMD_ARG(write-without-response-cb, NULL,
"<handle> <data> [length] [repeat]",
cmd_write_without_rsp, 3, 2),
SHELL_CMD_ARG(unsubscribe, NULL, HELP_NONE, cmd_unsubscribe, 1, 0),
#endif /* CONFIG_BT_GATT_CLIENT */
SHELL_CMD_ARG(get, NULL, "<start handle> [end handle]", cmd_get, 2, 1),
SHELL_CMD_ARG(set, NULL, "<handle> [data...]", cmd_set, 2, 255),
SHELL_CMD_ARG(show-db, NULL, "[uuid] [num_matches]", cmd_show_db, 1, 2),
SHELL_CMD_ARG(att_mtu, NULL, "Output ATT MTU size", cmd_att_mtu, 1, 0),
#if defined(CONFIG_BT_GATT_DYNAMIC_DB)
SHELL_CMD_ARG(metrics, NULL, "[value: on, off]", cmd_metrics, 1, 1),
SHELL_CMD_ARG(register, NULL,
"register pre-predefined test service",
cmd_register_test_svc, 1, 0),
SHELL_CMD_ARG(unregister, NULL,
"unregister pre-predefined test service",
cmd_unregister_test_svc, 1, 0),
SHELL_CMD_ARG(notify, NULL, "<handle> <data>", cmd_notify, 3, 0),
#if defined(CONFIG_BT_GATT_NOTIFY_MULTIPLE)
SHELL_CMD_ARG(notify-mult, NULL, "count [data]", cmd_notify_mult, 2, 1),
#endif /* CONFIG_BT_GATT_NOTIFY_MULTIPLE */
#endif /* CONFIG_BT_GATT_DYNAMIC_DB */
SHELL_SUBCMD_SET_END
);
static int cmd_gatt(const struct shell *sh, size_t argc, char **argv)
{
if (argc == 1) {
shell_help(sh);
/* shell returns 1 when help is printed */
return 1;
}
shell_error(sh, "%s unknown parameter: %s", argv[0], argv[1]);
return -EINVAL;
}
SHELL_CMD_ARG_REGISTER(gatt, &gatt_cmds, "Bluetooth GATT shell commands",
cmd_gatt, 1, 1);