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provisioning: Removed legacy examples

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6
examples/provisioning/legacy/ble_prov/CMakeLists.txt
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# The following lines of boilerplate have to be in your project's CMakeLists
# in this exact order for cmake to work correctly
cmake_minimum_required(VERSION 3.5)
set(EXTRA_COMPONENT_DIRS $ENV{IDF_PATH}/examples/common_components/qrcode)
include($ENV{IDF_PATH}/tools/cmake/project.cmake)
project(ble_prov)

243
examples/provisioning/legacy/ble_prov/README.md
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| Supported Targets | ESP32 |
| ----------------- | ----- |
# BLE based Provisioning Example (Legacy)
> Note: It is recommended to use the new `wifi_prov_mgr` example which is based on the simpler `wifi_provisioning` APIs. Check this example only if you wish to use lower level provisioning and protocomm APIs and want more control over the handlers.
(See the README.md file in the upper level 'examples' directory for more information about examples.)
`ble_prov` example demonstrates the implementation and integration of various IDF components for building a provisioning application.
For this example BLE is chosen as the mode of transport, over which the provisioning related communication is to take place, between the device (to be provisioned) and the client (owner of the device).
In the provisioning process the device is configured as a Wi-Fi station with specified credentials. Once configured, the device will retain the Wi-Fi configuration, until a flash erase is performed.
Right after provisioning is complete, BLE is turned off and disabled to free the memory used by the BLE stack. Though, that is specific to this example, and the user can choose to keep BLE on in their own application.
`ble_prov` uses the following components :
* `wifi_provisioning` : provides data structures and protocomm endpoint handlers for Wi-Fi configuration
* `protocomm` : for protocol based communication and secure session establishment
* `protobuf` : Google's protocol buffer library for serialization of protocomm data structures
* `bt` : ESP32 BLE stack for transport of protobuf packets
This example can be used, as it is, for adding a provisioning service to any application intended for IoT.
## How to use example
### Hardware Required
Example should be able to run on any commonly available ESP32 development board.
### Application Required
Provisioning applications are available for various platforms. See below
#### Platform : Android
For Android, a provisioning application along with source code is available on GitHub : [esp-idf-provisioning-android](https://github.com/espressif/esp-idf-provisioning-android)
#### Platform : iOS
For iOS, a provisioning application along with source code is available on GitHub : [esp-idf-provisioning-ios](https://github.com/espressif/esp-idf-provisioning-ios)
#### Platform : Linux / Windows / macOS
To provision the device running this example, the `esp_prov.py` script needs to be run (found under `$IDF_PATH/tools/esp_prov`). Make sure to satisfy all the dependencies prior to running the script.
Presently, `esp_prov` supports BLE transport only for Linux platform. For Windows/macOS it falls back to console mode and requires another application (for BLE) through which the communication can take place.
There are various applications, specific to Windows and macOS platform which can be used. The `esp_prov` console will guide you through the provisioning process of locating the correct BLE GATT services and characteristics, the values to write, and input read values.
### Configure the project
```
idf.py menuconfig
```
* Under Example Configuration set the following :
* Security Version (default 1)
* Proof of Possession (default "abcd1234")
### Build and Flash
Build the project and flash it to the board, then run monitor tool to view serial output:
```
idf.py -p PORT flash monitor
```
(To exit the serial monitor, type ``Ctrl-]``.)
See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.
## Example Output
```
I (550) app: Starting BLE provisioning
I (1130) app_prov: Provisioning started with BLE devname : PROV_261FCC
```
Make sure to note down the BLE device name (starting with PROV_) displayed in the serial monitor log (eg. PROV_261FCC). This will depend on the MAC ID and will be unique for every device.
In a separate terminal run the `esp_prov.py` script under `$IDP_PATH/tools/esp_prov` directory (please replace `myssid` and `mypassword` with the credentials of the AP to which the device is supposed to connect to after provisioning). Assuming default example configuration :
```
python esp_prov.py --transport ble --service_name PROV_261FCC --sec_ver 1 --pop abcd1234 --ssid myssid --passphrase mypassword
```
Above command will perform the provisioning steps, and the monitor log should display something like this :
```
I (682950) app_prov_handler: WiFi Credentials Received :
ssid : myssid
password : mypassword
.
.
.
I (683130) app_prov: STA Start
I (683130) app_prov_handler: WiFi Credentials Applied
.
.
.
I (688270) app_prov_handler: Connecting state
.
.
.
I (688390) app_prov: STA Got IP
I (688390) app: got ip:192.168.43.220
I (693410) app_prov_handler: Connected state
```
After sometime the provisioning app will exit and BLE will be turned off
```
I (718390) app_prov: Stopping provisioning
I (718670) app_prov: Provisioning stopped
```
## QR Code Scanning
Enabling `CONFIG_EXAMPLE_PROV_SHOW_QR` will display a QR code on the serial terminal, which can be scanned from the ESP Provisioning phone apps to start the Wi-Fi provisioning process.
The monitor log should display something like this :
```
I (1640) app_prov: SoftAP Provisioning started with SSID 'PROV_EA69FC', Password 'PROV_PASS'
I (1640) app: Scan this QR code from the provisioning application for Provisioning.
I (1650) QRCODE: Encoding below text with ECC LVL 0 & QR Code Version 10
I (1660) QRCODE: {"ver":"v1","name":"PROV_EA69FC","pop":"abcd1234","transport":"ble"}
█▀▀▀▀▀█ ▄▀ ▄█ ▄█▄▄█▀▄ ██ █▀▀▀▀▀█
█ ███ █ ▀███▀ ██▀▀█ ▀█▀ █ ███ █
█ ▀▀▀ █ █▄ ▄ ▀███ ▄▄█▀ ▄ █ ▀▀▀ █
▀▀▀▀▀▀▀ █▄▀ █ ▀ ▀▄█▄▀▄▀▄█ ▀▀▀▀▀▀▀
▀▀▄▀▄▄▀█ █▄ ▀▄▀█▄█ ▄▄ ██▄█▀▀▄▀▀▄
███ █▀▀ ▄▀▀ ▄█▄ ▀▀█▄█▀▄▄ ▄█ █
▄▀▀ ▀▀▀█▀▄▄▄█▀▀ ██▄█▄▄█▄▀█ ▄▄ ▀█
▄█▄█ ▀▀▄█ ██ ▄█ ██▀█▀ ▄█ █▄
▄█▀█▀ █▄▀▀▄ █▀█▀██ ▄█▀ ▀▀▄ ▀
█▄▄█▄▀█▄▄▀▄▄▀█ ▀▄ ▄▀██ ▄ █▄▄▄ ▀█
▀▄▀▄▀▀▀█ ▄ ▄▀▀▀█▄▀▀▀▀▀▄█ ▄▄ █ ▄▄
▀█▄▀██▀▄▄ ▄▄▀▄ ▄▀▀▀▀█▄▀▄▀█ ▄▄ ▀▀
▀ ▀ ▀ ▀▀█▄▀ ▀▀ ▀▀▀▄▀██ █▀▀▀█▀ ▄▄
█▀▀▀▀▀█ ▀▀██▀█▀ ▀█ ▄ █▀▀█ ▀ ██ ▀▄
█ ███ █ ▄█▀▄▄▄ █▀▀▀ ██ ▀████▀ ▄█
█ ▀▀▀ █ ▄▀▄▄ ▄▀█▀▄▄▄█ ▀ ▄▀█▀▀▀
▀▀▀▀▀▀▀ ▀ ▀▀▀▀ ▀ ▀ ▀ ▀ ▀▀ ▀
I (1870) app: If QR code is not visible, copy paste the below URL in a browser.
https://espressif.github.io/esp-jumpstart/qrcode.html?data={"ver":"v1","name":"PROV_EA69FC","pop":"abcd1234","transport":"ble"}
```
## Troubleshooting
### Provisioning failed
It is possible that the Wi-Fi credentials provided were incorrect, or the device was not able to establish connection to the network, in which the the `esp_prov` script will notify failure (with reason) and the provisioning app will continue running, allowing the user to retry the process. Serial monitor log will display the failure along with disconnect reason :
```
E (39291) app_prov: STA Disconnected
E (39291) app_prov: Disconnect reason : 201
I (39291) app_prov: STA AP Not found
I (42021) app_prov_handler: Disconnected state
```
### Provisioning does not start
If the serial monitor log is different, as shown below :
```
I (539) app_prov: Found ssid myssid
I (539) app_prov: Found password mypassword
I (549) app: Starting WiFi station
```
It means the Wi-Fi credentials were already set by some other application flashed previously to your device. To erase these credentials either do full erase and then flash the example
```
make erase_flash
idf.py -p PORT flash monitor
```
Or, enable `Reset Provisioning` option under `Example Configuration` under menuconfig. But this will erase the saved Wi-Fi credentials every time the device boots, so this is not the preferred solution.
### Unsupported platform
If the platform requirement, for running `esp_prov` is not satisfied, then the script execution will fallback to console mode, in which case the full process (involving user inputs) will look like this :
```
BLE client is running in console mode
This could be due to your platform not being supported or dependencies not being met
Please ensure all pre-requisites are met to run the full fledged client
BLECLI >> Please connect to BLE device `PROV_261FCC` manually using your tool of choice
BLECLI >> Was the device connected successfully? [y/n] y
BLECLI >> List available attributes of the connected device
BLECLI >> Is the service UUID '0000ffff-0000-1000-8000-00805f9b34fb' listed among available attributes? [y/n] y
BLECLI >> Is the characteristic UUID '0000ff53-0000-1000-8000-00805f9b34fb' listed among available attributes? [y/n] y
BLECLI >> Is the characteristic UUID '0000ff51-0000-1000-8000-00805f9b34fb' listed among available attributes? [y/n] y
BLECLI >> Is the characteristic UUID '0000ff52-0000-1000-8000-00805f9b34fb' listed among available attributes? [y/n] y
==== Verifying protocol version ====
BLECLI >> Write following data to characteristic with UUID '0000ff53-0000-1000-8000-00805f9b34fb' :
>> 56302e31
BLECLI >> Enter data read from characteristic (in hex) :
<< 53554343455353
==== Verified protocol version successfully ====
==== Starting Session ====
BLECLI >> Write following data to characteristic with UUID '0000ff51-0000-1000-8000-00805f9b34fb' :
>> 10015a25a201220a20ae6d9d5d1029f8c366892252d2d5a0ffa7ce1ee5829312545dd5f2aba057294d
BLECLI >> Enter data read from characteristic (in hex) :
<< 10015a390801aa0134122048008bfc365fad4753dc75912e0c764d60749cb26dd609595b6fbc72e12614031a1089733af233c7448e7d7fb7963682c6d8
BLECLI >> Write following data to characteristic with UUID '0000ff51-0000-1000-8000-00805f9b34fb' :
>> 10015a270802b2012212204051088dc294fe4621fac934a8ea22e948fcc3e8ac458aac088ce705c65dbfb9
BLECLI >> Enter data read from characteristic (in hex) :
<< 10015a270803ba01221a20c8d38059d5206a3d92642973ac6ba8ac2f6ecf2b7a3632964eb35a0f20133adb
==== Session Established ====
==== Sending Wifi credential to esp32 ====
BLECLI >> Write following data to characteristic with UUID '0000ff52-0000-1000-8000-00805f9b34fb' :
>> 98471ac4019a46765c28d87df8c8ae71c1ae6cfe0bc9c615bc6d2c
BLECLI >> Enter data read from characteristic (in hex) :
<< 3271f39a
==== Wifi Credentials sent successfully ====
==== Applying config to esp32 ====
BLECLI >> Write following data to characteristic with UUID '0000ff52-0000-1000-8000-00805f9b34fb' :
>> 5355
BLECLI >> Enter data read from characteristic (in hex) :
<< 1664db24
==== Apply config sent successfully ====
==== Wifi connection state ====
BLECLI >> Write following data to characteristic with UUID '0000ff52-0000-1000-8000-00805f9b34fb' :
>> 290d
BLECLI >> Enter data read from characteristic (in hex) :
<< 505f72a9f8521025c1964d7789c4d7edc56aedebd144e1b667bc7c0975757b80cc091aa9f3e95b06eaefbc30290fa1
++++ WiFi state: connected ++++
==== Provisioning was successful ====
```
The write data is to be copied from the console output ```>>``` to the platform specific application and the data read from the application is to be pasted at the user input prompt ```<<``` of the console, in the format (hex) indicated in above sample log.

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examples/provisioning/legacy/ble_prov/ble_prov_test.py
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#!/usr/bin/env python
#
# Copyright 2018 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.
from __future__ import print_function
import os
import re
import esp_prov
import ttfw_idf
# Have esp_prov throw exception
esp_prov.config_throw_except = True
@ttfw_idf.idf_example_test(env_tag='Example_WIFI_BT')
def test_examples_provisioning_ble(env, extra_data):
# Acquire DUT
dut1 = env.get_dut('ble_prov', 'examples/provisioning/legacy/ble_prov', dut_class=ttfw_idf.ESP32DUT)
# Get binary file
binary_file = os.path.join(dut1.app.binary_path, 'ble_prov.bin')
bin_size = os.path.getsize(binary_file)
ttfw_idf.log_performance('ble_prov_bin_size', '{}KB'.format(bin_size // 1024))
# Upload binary and start testing
dut1.start_app()
# Parse BLE devname
devname = dut1.expect(re.compile(r"Provisioning started with BLE devname : '(PROV_\S\S\S\S\S\S)'"), timeout=60)[0]
print('BLE Device Alias for DUT :', devname)
# Match additional headers sent in the request
dut1.expect('BLE Provisioning started', timeout=30)
print('Starting Provisioning')
verbose = False
protover = 'V0.1'
secver = 1
pop = 'abcd1234'
provmode = 'ble'
ap_ssid = 'myssid'
ap_password = 'mypassword'
print('Getting security')
security = esp_prov.get_security(secver, pop, verbose)
if security is None:
raise RuntimeError('Failed to get security')
print('Getting transport')
transport = esp_prov.get_transport(provmode, devname)
if transport is None:
raise RuntimeError('Failed to get transport')
print('Verifying protocol version')
if not esp_prov.version_match(transport, protover):
raise RuntimeError('Mismatch in protocol version')
print('Starting Session')
if not esp_prov.establish_session(transport, security):
raise RuntimeError('Failed to start session')
print('Sending Wifi credential to DUT')
if not esp_prov.send_wifi_config(transport, security, ap_ssid, ap_password):
raise RuntimeError('Failed to send Wi-Fi config')
print('Applying config')
if not esp_prov.apply_wifi_config(transport, security):
raise RuntimeError('Failed to send apply config')
if not esp_prov.wait_wifi_connected(transport, security):
raise RuntimeError('Provisioning failed')
if __name__ == '__main__':
test_examples_provisioning_ble()

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examples/provisioning/legacy/ble_prov/main/CMakeLists.txt
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idf_component_register(SRCS "app_main.c"
"app_prov.c"
"app_prov_handlers.c"
INCLUDE_DIRS ".")

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examples/provisioning/legacy/ble_prov/main/Kconfig.projbuild
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menu "Example Configuration"
config EXAMPLE_USE_SEC_1
bool
default y
prompt "Use Security Version 1"
help
Security version 1 used Curve25519 key exchange for establishing
secure session between device and client during provisioning
config EXAMPLE_USE_POP
bool
depends on EXAMPLE_USE_SEC_1
default y
prompt "Use proof-of-possession"
help
Proof-of-possession can be optionally used to prove that the device is indeed
in possession of the user who is provisioning the device. This proof-of-possession
is internally used to generate the shared secret through key exchange.
config EXAMPLE_POP
string "Proof-of-possession"
default "abcd1234"
depends on EXAMPLE_USE_POP
config EXAMPLE_RESET_PROVISIONED
bool
default n
prompt "Reset provisioned status of the device"
help
This erases the NVS to reset provisioned status of the device on every reboot.
Provisioned status is determined by the Wi-Fi STA configuration, saved on the NVS.
config EXAMPLE_AP_RECONN_ATTEMPTS
int "Maximum AP connection attempts"
default 5
help
Set the maximum connection attempts to perform when connecting to a Wi-Fi AP.
config EXAMPLE_PROV_SHOW_QR
bool "Show provisioning QR code"
default y
help
Show the QR code for provisioning.
config EXAMPLE_PROV_USING_BLUEDROID
bool
depends on (BT_BLUEDROID_ENABLED && (IDF_TARGET_ESP32C3 || IDF_TARGET_ESP32S3))
select BT_BLE_42_FEATURES_SUPPORTED
default y
help
This enables BLE 4.2 features for Bluedroid.
endmenu

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examples/provisioning/legacy/ble_prov/main/app_main.c
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/* BLE based Provisioning Example
This example code is in the Public Domain (or CC0 licensed, at your option.)
Unless required by applicable law or agreed to in writing, this
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied.
*/
#include <string.h>
#include <freertos/FreeRTOS.h>
#include <freertos/task.h>
#include <esp_system.h>
#include <esp_wifi.h>
#include <esp_event.h>
#include <esp_log.h>
#include <nvs_flash.h>
#include <lwip/err.h>
#include <lwip/sys.h>
#include "app_prov.h"
#include "qrcode.h"
#define EXAMPLE_AP_RECONN_ATTEMPTS CONFIG_EXAMPLE_AP_RECONN_ATTEMPTS
#define PROV_QR_VERSION "v1"
#define PROV_TRANSPORT_BLE "ble"
#define QRCODE_BASE_URL "https://espressif.github.io/esp-jumpstart/qrcode.html"
static const char *TAG = "app";
static void start_ble_provisioning(void);
static void event_handler(void* arg, esp_event_base_t event_base,
int32_t event_id, void* event_data)
{
static int s_retry_num_ap_not_found = 0;
static int s_retry_num_ap_auth_fail = 0;
if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_START) {
esp_wifi_connect();
} else if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_DISCONNECTED) {
wifi_event_sta_disconnected_t* disconnected = (wifi_event_sta_disconnected_t*) event_data;
switch (disconnected->reason) {
case WIFI_REASON_AUTH_EXPIRE:
case WIFI_REASON_4WAY_HANDSHAKE_TIMEOUT:
case WIFI_REASON_BEACON_TIMEOUT:
case WIFI_REASON_AUTH_FAIL:
case WIFI_REASON_ASSOC_FAIL:
case WIFI_REASON_HANDSHAKE_TIMEOUT:
ESP_LOGW(TAG, "connect to the AP fail : auth Error");
if (s_retry_num_ap_auth_fail < EXAMPLE_AP_RECONN_ATTEMPTS) {
s_retry_num_ap_auth_fail++;
esp_wifi_connect();
ESP_LOGI(TAG, "retry connecting to the AP...");
} else {
/* Restart provisioning if authentication fails */
start_ble_provisioning();
}
break;
case WIFI_REASON_NO_AP_FOUND:
ESP_LOGW(TAG, "connect to the AP fail : not found");
if (s_retry_num_ap_not_found < EXAMPLE_AP_RECONN_ATTEMPTS) {
s_retry_num_ap_not_found++;
esp_wifi_connect();
ESP_LOGI(TAG, "retry to connecting to the AP...");
}
break;
default:
/* None of the expected reasons */
esp_wifi_connect();
break;
}
} else if (event_base == IP_EVENT && event_id == IP_EVENT_STA_GOT_IP) {
ip_event_got_ip_t* event = (ip_event_got_ip_t*) event_data;
ESP_LOGI(TAG, "got ip:" IPSTR, IP2STR(&event->ip_info.ip));
s_retry_num_ap_not_found = 0;
s_retry_num_ap_auth_fail = 0;
}
}
static void wifi_init_sta(void)
{
/* Set our event handling */
ESP_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT, ESP_EVENT_ANY_ID, event_handler, NULL));
ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, event_handler, NULL));
/* Start Wi-Fi in station mode with credentials set during provisioning */
ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));
ESP_ERROR_CHECK(esp_wifi_start());
}
static void start_ble_provisioning(void)
{
/* Security version */
int security = 0;
/* Proof of possession */
const protocomm_security_pop_t *pop = NULL;
#ifdef CONFIG_EXAMPLE_USE_SEC_1
security = 1;
#endif
/* Having proof of possession is optional */
#ifdef CONFIG_EXAMPLE_USE_POP
const static protocomm_security_pop_t app_pop = {
.data = (uint8_t *) CONFIG_EXAMPLE_POP,
.len = (sizeof(CONFIG_EXAMPLE_POP)-1)
};
pop = &app_pop;
#endif
ESP_ERROR_CHECK(app_prov_start_ble_provisioning(security, pop));
}
static void get_device_service_name(char *service_name, size_t max)
{
uint8_t eth_mac[6];
const char *ssid_prefix = "PROV_";
esp_wifi_get_mac(WIFI_IF_STA, eth_mac);
snprintf(service_name, max, "%s%02X%02X%02X",
ssid_prefix, eth_mac[3], eth_mac[4], eth_mac[5]);
}
static void ble_prov_print_qr(void)
{
char payload[150] = {0};
char name[12] = {0};
char *pop = NULL;
#ifdef CONFIG_EXAMPLE_USE_POP
pop = CONFIG_EXAMPLE_POP;
#endif
get_device_service_name(name, sizeof(name));
if (pop) {
snprintf(payload, sizeof(payload), "{\"ver\":\"%s\",\"name\":\"%s\"" \
",\"pop\":\"%s\",\"transport\":\"%s\"}",
PROV_QR_VERSION, name, pop, PROV_TRANSPORT_BLE);
} else {
snprintf(payload, sizeof(payload), "{\"ver\":\"%s\",\"name\":\"%s\"" \
",\"transport\":\"%s\"}",
PROV_QR_VERSION, name, PROV_TRANSPORT_BLE);
}
#ifdef CONFIG_EXAMPLE_PROV_SHOW_QR
ESP_LOGI(TAG, "Scan this QR code from the provisioning application for Provisioning.");
esp_qrcode_config_t cfg = ESP_QRCODE_CONFIG_DEFAULT();
esp_qrcode_generate(&cfg, payload);
#endif /* CONFIG_APP_WIFI_PROV_SHOW_QR */
ESP_LOGI(TAG, "If QR code is not visible, copy paste the below URL in a browser.\n%s?data=%s", QRCODE_BASE_URL, payload);
}
void app_main(void)
{
/* Initialize networking stack */
ESP_ERROR_CHECK(esp_netif_init());
/* Create default event loop needed by the
* main app and the provisioning service */
ESP_ERROR_CHECK(esp_event_loop_create_default());
/* Initialize NVS needed by Wi-Fi */
ESP_ERROR_CHECK(nvs_flash_init());
/* Initialize Wi-Fi including netif with default config */
esp_netif_create_default_wifi_sta();
wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
ESP_ERROR_CHECK(esp_wifi_init(&cfg));
/* Check if device is provisioned */
bool provisioned;
if (app_prov_is_provisioned(&provisioned) != ESP_OK) {
ESP_LOGE(TAG, "Error getting device provisioning state");
return;
}
if (provisioned == false) {
/* If not provisioned, start provisioning via BLE */
ESP_LOGI(TAG, "Starting BLE provisioning");
start_ble_provisioning();
ble_prov_print_qr();
} else {
/* Else start as station with credentials set during provisioning */
ESP_LOGI(TAG, "Starting WiFi station");
wifi_init_sta();
}
}

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examples/provisioning/legacy/ble_prov/main/app_prov.c
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/* BLE based Provisioning Example
This example code is in the Public Domain (or CC0 licensed, at your option.)
Unless required by applicable law or agreed to in writing, this
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied.
*/
#include <string.h>
#include <esp_log.h>
#include <esp_err.h>
#include <esp_wifi.h>
#include <nvs_flash.h>
#include <nvs.h>
#include <esp_bt.h>
#include <esp_event.h>
#include <esp_timer.h>
#ifdef CONFIG_BT_NIMBLE_ENABLED
#include "esp_nimble_hci.h"
#include "nimble/nimble_port.h"
#include "nimble/nimble_port_freertos.h"
#include "host/ble_hs.h"
#endif
#include <protocomm.h>
#include <protocomm_ble.h>
#include <protocomm_security0.h>
#include <protocomm_security1.h>
#include <wifi_provisioning/wifi_config.h>
#include "app_prov.h"
static const char *TAG = "app_prov";
static const char *ssid_prefix = "PROV_";
/* Handler for catching WiFi events */
static void app_prov_event_handler(void* handler_arg, esp_event_base_t base, int32_t id, void* data);
/* Handlers for wifi_config provisioning endpoint */
extern wifi_prov_config_handlers_t wifi_prov_handlers;
/**
* @brief Data relevant to provisioning application
*/
struct app_prov_data {
protocomm_t *pc; /*!< Protocomm handler */
int security; /*!< Type of security to use with protocomm */
const protocomm_security_pop_t *pop; /*!< Pointer to proof of possession */
esp_timer_handle_t timer; /*!< Handle to timer */
/* State of WiFi Station */
wifi_prov_sta_state_t wifi_state;
/* Code for WiFi station disconnection (if disconnected) */
wifi_prov_sta_fail_reason_t wifi_disconnect_reason;
};
/* Pointer to provisioning application data */
static struct app_prov_data *g_prov;
static esp_err_t app_prov_start_service(void)
{
/* Create new protocomm instance */
g_prov->pc = protocomm_new();
if (g_prov->pc == NULL) {
ESP_LOGE(TAG, "Failed to create new protocomm instance");
return ESP_FAIL;
}
/* Endpoint UUIDs */
protocomm_ble_name_uuid_t nu_lookup_table[] = {
{"prov-session", 0x0001},
{"prov-config", 0x0002},
{"proto-ver", 0x0003},
};
/* Config for protocomm_ble_start() */
protocomm_ble_config_t config = {
.service_uuid = {
/* LSB <---------------------------------------
* ---------------------------------------> MSB */
0xb4, 0xdf, 0x5a, 0x1c, 0x3f, 0x6b, 0xf4, 0xbf,
0xea, 0x4a, 0x82, 0x03, 0x04, 0x90, 0x1a, 0x02,
},
.nu_lookup_count = sizeof(nu_lookup_table)/sizeof(nu_lookup_table[0]),
.nu_lookup = nu_lookup_table
};
/* With the above selection of 128bit primary service UUID and
* 16bit endpoint UUIDs, the 128bit characteristic UUIDs will be
* formed by replacing the 12th and 13th bytes of the service UUID
* with the 16bit endpoint UUID, i.e. :
* service UUID : 021a9004-0382-4aea-bff4-6b3f1c5adfb4
* masked base : 021a____-0382-4aea-bff4-6b3f1c5adfb4
* ------------------------------------------------------
* resulting characteristic UUIDs :
* 1) prov-session : 021a0001-0382-4aea-bff4-6b3f1c5adfb4
* 2) prov-config : 021a0002-0382-4aea-bff4-6b3f1c5adfb4
* 3) proto-ver : 021a0003-0382-4aea-bff4-6b3f1c5adfb4
*
* Also, note that each endpoint (characteristic) will have
* an associated "Characteristic User Description" descriptor
* with 16bit UUID 0x2901, each containing the corresponding
* endpoint name. These descriptors can be used by a client
* side application to figure out which characteristic is
* mapped to which endpoint, without having to hardcode the
* UUIDs */
uint8_t eth_mac[6];
esp_wifi_get_mac(WIFI_IF_STA, eth_mac);
snprintf(config.device_name, sizeof(config.device_name), "%s%02X%02X%02X",
ssid_prefix, eth_mac[3], eth_mac[4], eth_mac[5]);
/* Release BT memory, as we need only BLE */
esp_err_t err = esp_bt_controller_mem_release(ESP_BT_MODE_CLASSIC_BT);
if (err) {
ESP_LOGE(TAG, "bt_controller_mem_release failed %d", err);
if (err != ESP_ERR_INVALID_STATE) {
return err;
}
}
/* Start protocomm layer on top of BLE */
if (protocomm_ble_start(g_prov->pc, &config) != ESP_OK) {
ESP_LOGE(TAG, "Failed to start BLE provisioning");
return ESP_FAIL;
}
/* Set protocomm version verification endpoint for protocol */
protocomm_set_version(g_prov->pc, "proto-ver", "V0.1");
/* Set protocomm security type for endpoint */
if (g_prov->security == 0) {
protocomm_set_security(g_prov->pc, "prov-session", &protocomm_security0, NULL);
} else if (g_prov->security == 1) {
protocomm_set_security(g_prov->pc, "prov-session", &protocomm_security1, g_prov->pop);
}
/* Add endpoint for provisioning to set wifi station config */
if (protocomm_add_endpoint(g_prov->pc, "prov-config",
wifi_prov_config_data_handler,
(void *) &wifi_prov_handlers) != ESP_OK) {
ESP_LOGE(TAG, "Failed to set provisioning endpoint");
protocomm_ble_stop(g_prov->pc);
return ESP_FAIL;
}
ESP_LOGI(TAG, "Provisioning started with BLE devname : '%s'", config.device_name);
return ESP_OK;
}
static void app_prov_stop_service(void)
{
/* Remove provisioning endpoint */
protocomm_remove_endpoint(g_prov->pc, "prov-config");
/* Unset provisioning security */
protocomm_unset_security(g_prov->pc, "prov-session");
/* Unset provisioning version endpoint */
protocomm_unset_version(g_prov->pc, "proto-ver");
/* Stop protocomm ble service */
protocomm_ble_stop(g_prov->pc);
/* Delete protocomm instance */
protocomm_delete(g_prov->pc);
/* Remove event handler */
esp_event_handler_unregister(WIFI_EVENT, ESP_EVENT_ANY_ID, app_prov_event_handler);
esp_event_handler_unregister(IP_EVENT, IP_EVENT_STA_GOT_IP, app_prov_event_handler);
/* Release memory used by BT stack */
esp_bt_mem_release(ESP_BT_MODE_BTDM);
}
/* Task spawned by timer callback */
static void stop_prov_task(void * arg)
{
ESP_LOGI(TAG, "Stopping provisioning");
app_prov_stop_service();
/* Timer not needed anymore */
esp_timer_handle_t timer = g_prov->timer;
esp_timer_delete(timer);
g_prov->timer = NULL;
/* Free provisioning process data */
free(g_prov);
g_prov = NULL;
ESP_LOGI(TAG, "Provisioning stopped");
vTaskDelete(NULL);
}
/* Callback to be invoked by timer */
static void _stop_prov_cb(void * arg)
{
xTaskCreate(&stop_prov_task, "stop_prov", 2048, NULL, tskIDLE_PRIORITY, NULL);
}
/* Event handler for starting/stopping provisioning */
static void app_prov_event_handler(void* handler_arg, esp_event_base_t event_base,
int32_t event_id, void* event_data)
{
/* If pointer to provisioning application data is NULL
* then provisioning is not running */
if (!g_prov) {
return;
}
if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_START) {
ESP_LOGI(TAG, "STA Start");
/* Once configuration is received through protocomm,
* device is started as station. Once station starts,
* wait for connection to establish with configured
* host SSID and password */
g_prov->wifi_state = WIFI_PROV_STA_CONNECTING;
} else if (event_base == IP_EVENT && event_id == IP_EVENT_STA_GOT_IP) {
ESP_LOGI(TAG, "STA Got IP");
/* Station got IP. That means configuration is successful.
* Schedule timer to stop provisioning app after 30 seconds. */
g_prov->wifi_state = WIFI_PROV_STA_CONNECTED;
if (g_prov && g_prov->timer) {
esp_timer_start_once(g_prov->timer, 30000*1000U);
}
} else if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_DISCONNECTED) {
ESP_LOGE(TAG, "STA Disconnected");
/* Station couldn't connect to configured host SSID */
g_prov->wifi_state = WIFI_PROV_STA_DISCONNECTED;
wifi_event_sta_disconnected_t* disconnected = (wifi_event_sta_disconnected_t*) event_data;
ESP_LOGE(TAG, "Disconnect reason : %d", disconnected->reason);
/* Set code corresponding to the reason for disconnection */
switch (disconnected->reason) {
case WIFI_REASON_AUTH_EXPIRE:
case WIFI_REASON_4WAY_HANDSHAKE_TIMEOUT:
case WIFI_REASON_BEACON_TIMEOUT:
case WIFI_REASON_AUTH_FAIL:
case WIFI_REASON_ASSOC_FAIL:
case WIFI_REASON_HANDSHAKE_TIMEOUT:
ESP_LOGI(TAG, "STA Auth Error");
g_prov->wifi_disconnect_reason = WIFI_PROV_STA_AUTH_ERROR;
break;
case WIFI_REASON_NO_AP_FOUND:
ESP_LOGI(TAG, "STA AP Not found");
g_prov->wifi_disconnect_reason = WIFI_PROV_STA_AP_NOT_FOUND;
break;
default:
/* If none of the expected reasons,
* retry connecting to host SSID */
g_prov->wifi_state = WIFI_PROV_STA_CONNECTING;
}
esp_wifi_connect();
}
}
esp_err_t app_prov_get_wifi_state(wifi_prov_sta_state_t* state)
{
if (g_prov == NULL || state == NULL) {
return ESP_FAIL;
}
*state = g_prov->wifi_state;
return ESP_OK;
}
esp_err_t app_prov_get_wifi_disconnect_reason(wifi_prov_sta_fail_reason_t* reason)
{
if (g_prov == NULL || reason == NULL) {
return ESP_FAIL;
}
if (g_prov->wifi_state != WIFI_PROV_STA_DISCONNECTED) {
return ESP_FAIL;
}
*reason = g_prov->wifi_disconnect_reason;
return ESP_OK;
}
esp_err_t app_prov_is_provisioned(bool *provisioned)
{
*provisioned = false;
#ifdef CONFIG_EXAMPLE_RESET_PROVISIONED
esp_wifi_restore();
return ESP_OK;
#endif
/* Get WiFi Station configuration */
wifi_config_t wifi_cfg;
if (esp_wifi_get_config(WIFI_IF_STA, &wifi_cfg) != ESP_OK) {
return ESP_FAIL;
}
if (strlen((const char*) wifi_cfg.sta.ssid)) {
*provisioned = true;
ESP_LOGI(TAG, "Found ssid %s", (const char*) wifi_cfg.sta.ssid);
ESP_LOGI(TAG, "Found password %s", (const char*) wifi_cfg.sta.password);
}
return ESP_OK;
}
esp_err_t app_prov_configure_sta(wifi_config_t *wifi_cfg)
{
/* Configure WiFi as station */
if (esp_wifi_set_mode(WIFI_MODE_STA) != ESP_OK) {
ESP_LOGE(TAG, "Failed to set WiFi mode");
return ESP_FAIL;
}
/* Configure WiFi station with host credentials
* provided during provisioning */
if (esp_wifi_set_config(WIFI_IF_STA, wifi_cfg) != ESP_OK) {
ESP_LOGE(TAG, "Failed to set WiFi configuration");
return ESP_FAIL;
}
/* Start WiFi */
if (esp_wifi_start() != ESP_OK) {
ESP_LOGE(TAG, "Failed to set WiFi configuration");
return ESP_FAIL;
}
/* Connect to AP */
if (esp_wifi_connect() != ESP_OK) {
ESP_LOGE(TAG, "Failed to connect WiFi");
return ESP_FAIL;
}
if (g_prov) {
/* Reset wifi station state for provisioning app */
g_prov->wifi_state = WIFI_PROV_STA_CONNECTING;
}
return ESP_OK;
}
esp_err_t app_prov_start_ble_provisioning(int security, const protocomm_security_pop_t *pop)
{
/* If provisioning app data present,
* means provisioning app is already running */
if (g_prov) {
ESP_LOGI(TAG, "Invalid provisioning state");
return ESP_FAIL;
}
/* Allocate memory for provisioning app data */
g_prov = (struct app_prov_data *) calloc(1, sizeof(struct app_prov_data));
if (!g_prov) {
ESP_LOGI(TAG, "Unable to allocate prov data");
return ESP_ERR_NO_MEM;
}
/* Initialize app data */
g_prov->pop = pop;
g_prov->security = security;
/* Create timer object as a member of app data */
esp_timer_create_args_t timer_conf = {
.callback = _stop_prov_cb,
.arg = NULL,
.dispatch_method = ESP_TIMER_TASK,
.name = "stop_ble_tm"
};
esp_err_t err = esp_timer_create(&timer_conf, &g_prov->timer);
if (err != ESP_OK) {
ESP_LOGE(TAG, "Failed to create timer");
return err;
}
err = esp_event_handler_register(WIFI_EVENT, ESP_EVENT_ANY_ID, app_prov_event_handler, NULL);
if (err != ESP_OK) {
ESP_LOGE(TAG, "Failed to register WiFi event handler");
return err;
}
err = esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, app_prov_event_handler, NULL);
if (err != ESP_OK) {
ESP_LOGE(TAG, "Failed to register IP event handler");
return err;
}
/* Start provisioning service through BLE */
err = app_prov_start_service();
if (err != ESP_OK) {
ESP_LOGE(TAG, "Provisioning failed to start");
return err;
}
ESP_LOGI(TAG, "BLE Provisioning started");
return ESP_OK;
}

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examples/provisioning/legacy/ble_prov/main/app_prov.h
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@ -1,79 +0,0 @@
/* BLE based Provisioning Example
This example code is in the Public Domain (or CC0 licensed, at your option.)
Unless required by applicable law or agreed to in writing, this
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied.
*/
#pragma once
#include <protocomm_security.h>
#include <wifi_provisioning/wifi_config.h>
/**
* @brief Get state of WiFi Station during provisioning
*
* @note WiFi is initially configured as AP, when
* provisioning starts. After provisioning data
* is provided by user, the WiFi is reconfigured
* to run as both AP and Station.
*
* @param[out] state Pointer to wifi_prov_sta_state_t variable to be filled
*
* @return
* - ESP_OK : Successfully retrieved wifi state
* - ESP_FAIL : Provisioning app not running
*/
esp_err_t app_prov_get_wifi_state(wifi_prov_sta_state_t* state);
/**
* @brief Get reason code in case of WiFi station
* disconnection during provisioning
*
* @param[out] reason Pointer to wifi_prov_sta_fail_reason_t variable to be filled
*
* @return
* - ESP_OK : Successfully retrieved wifi disconnect reason
* - ESP_FAIL : Provisioning app not running
*/
esp_err_t app_prov_get_wifi_disconnect_reason(wifi_prov_sta_fail_reason_t* reason);
/**
* @brief Checks if device is provisioned
* *
* @param[out] provisioned True if provisioned, else false
*
* @return
* - ESP_OK : Retrieved provision state successfully
* - ESP_FAIL : Failed to retrieve provision state
*/
esp_err_t app_prov_is_provisioned(bool *provisioned);
/**
* @brief Runs WiFi as Station
*
* Configures the WiFi station mode to connect to the
* SSID and password specified in config structure,
* and starts WiFi to run as station
*
* @param[in] wifi_cfg Pointer to WiFi cofiguration structure
*
* @return
* - ESP_OK : WiFi configured and started successfully
* - ESP_FAIL : Failed to set configuration
*/
esp_err_t app_prov_configure_sta(wifi_config_t *wifi_cfg);
/**
* @brief Start provisioning via Bluetooth
*
* @param[in] security Security mode
* @param[in] pop Pointer to proof of possession (NULL if not present)
*
* @return
* - ESP_OK : Provisioning started successfully
* - ESP_FAIL : Failed to start
*/
esp_err_t app_prov_start_ble_provisioning(int security, const protocomm_security_pop_t *pop);

135
examples/provisioning/legacy/ble_prov/main/app_prov_handlers.c
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/* SoftAP based Provisioning Example
This example code is in the Public Domain (or CC0 licensed, at your option.)
Unless required by applicable law or agreed to in writing, this
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied.
*/
/* This file is mostly a boiler-plate code that applications can use without much change */
#include <stdio.h>
#include <string.h>
#include <esp_err.h>
#include <esp_log.h>
#include <esp_wifi.h>
#include <esp_netif.h>
#include <wifi_provisioning/wifi_config.h>
#include "app_prov.h"
static const char* TAG = "app_prov_handler";
/* Provide definition of wifi_prov_ctx_t */
struct wifi_prov_ctx {
wifi_config_t wifi_cfg;
};
static wifi_config_t *get_config(wifi_prov_ctx_t **ctx)
{
return (*ctx ? &(*ctx)->wifi_cfg : NULL);
}
static wifi_config_t *new_config(wifi_prov_ctx_t **ctx)
{
free(*ctx);
(*ctx) = (wifi_prov_ctx_t *) calloc(1, sizeof(wifi_prov_ctx_t));
return get_config(ctx);
}
static void free_config(wifi_prov_ctx_t **ctx)
{
free(*ctx);
*ctx = NULL;
}
static esp_err_t get_status_handler(wifi_prov_config_get_data_t *resp_data, wifi_prov_ctx_t **ctx)
{
/* Initialize to zero */
memset(resp_data, 0, sizeof(wifi_prov_config_get_data_t));
if (app_prov_get_wifi_state(&resp_data->wifi_state) != ESP_OK) {
ESP_LOGW(TAG, "Prov app not running");
return ESP_FAIL;
}
if (resp_data->wifi_state == WIFI_PROV_STA_CONNECTED) {
ESP_LOGI(TAG, "Connected state");
/* IP Addr assigned to STA */
esp_netif_ip_info_t ip_info;
esp_netif_get_ip_info(esp_netif_get_handle_from_ifkey("WIFI_STA_DEF"), &ip_info);
esp_ip4addr_ntoa(&ip_info.ip, resp_data->conn_info.ip_addr, sizeof(resp_data->conn_info.ip_addr));
/* AP information to which STA is connected */
wifi_ap_record_t ap_info;
esp_wifi_sta_get_ap_info(&ap_info);
memcpy(resp_data->conn_info.bssid, (char *)ap_info.bssid, sizeof(ap_info.bssid));
memcpy(resp_data->conn_info.ssid, (char *)ap_info.ssid, sizeof(ap_info.ssid));
resp_data->conn_info.channel = ap_info.primary;
resp_data->conn_info.auth_mode = ap_info.authmode;
} else if (resp_data->wifi_state == WIFI_PROV_STA_DISCONNECTED) {
ESP_LOGI(TAG, "Disconnected state");
/* If disconnected, convey reason */
app_prov_get_wifi_disconnect_reason(&resp_data->fail_reason);
} else {
ESP_LOGI(TAG, "Connecting state");
}
return ESP_OK;
}
static esp_err_t set_config_handler(const wifi_prov_config_set_data_t *req_data, wifi_prov_ctx_t **ctx)
{
wifi_config_t *wifi_cfg = get_config(ctx);
if (wifi_cfg) {
free_config(ctx);
}
wifi_cfg = new_config(ctx);
if (!wifi_cfg) {
ESP_LOGE(TAG, "Unable to alloc wifi config");
return ESP_FAIL;
}
ESP_LOGI(TAG, "WiFi Credentials Received : \n\tssid %s \n\tpassword %s",
req_data->ssid, req_data->password);
/* Using memcpy allows the max SSID length to be 32 bytes (as per 802.11 standard).
* But this doesn't guarantee that the saved SSID will be null terminated, because
* wifi_cfg->sta.ssid is also 32 bytes long (without extra 1 byte for null character).
* Although, this is not a matter for concern because esp_wifi library reads the SSID
* upto 32 bytes in absence of null termination */
const size_t ssid_len = strnlen(req_data->ssid, sizeof(wifi_cfg->sta.ssid));
/* Ensure SSID less than 32 bytes is null terminated */
memset(wifi_cfg->sta.ssid, 0, sizeof(wifi_cfg->sta.ssid));
memcpy(wifi_cfg->sta.ssid, req_data->ssid, ssid_len);
strlcpy((char *) wifi_cfg->sta.password, req_data->password, sizeof(wifi_cfg->sta.password));
return ESP_OK;
}
static esp_err_t apply_config_handler(wifi_prov_ctx_t **ctx)
{
wifi_config_t *wifi_cfg = get_config(ctx);
if (!wifi_cfg) {
ESP_LOGE(TAG, "WiFi config not set");
return ESP_FAIL;
}
app_prov_configure_sta(wifi_cfg);
ESP_LOGI(TAG, "WiFi Credentials Applied");
free_config(ctx);
return ESP_OK;
}
wifi_prov_config_handlers_t wifi_prov_handlers = {
.get_status_handler = get_status_handler,
.set_config_handler = set_config_handler,
.apply_config_handler = apply_config_handler,
.ctx = NULL
};

5
examples/provisioning/legacy/ble_prov/partitions.csv
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@ -1,5 +0,0 @@
# Name, Type, SubType, Offset, Size, Flags
# Note: if you have increased the bootloader size, make sure to update the offsets to avoid overlap
nvs, data, nvs, 0x9000, 0x6000,
phy_init, data, phy, 0xf000, 0x1000,
factory, app, factory, 0x10000, 1200000,
1 # Name, Type, SubType, Offset, Size, Flags
2 # Note: if you have increased the bootloader size, make sure to update the offsets to avoid overlap
3 nvs, data, nvs, 0x9000, 0x6000,
4 phy_init, data, phy, 0xf000, 0x1000,
5 factory, app, factory, 0x10000, 1200000,

10
examples/provisioning/legacy/ble_prov/sdkconfig.defaults
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# Override some defaults so BT stack is enabled and
CONFIG_BT_ENABLED=y
CONFIG_BTDM_CTRL_MODE_BLE_ONLY=y
CONFIG_BTDM_CTRL_MODE_BR_EDR_ONLY=n
CONFIG_BTDM_CTRL_MODE_BTDM=n
# Binary is larger than default size
CONFIG_PARTITION_TABLE_CUSTOM=y
CONFIG_PARTITION_TABLE_CUSTOM_FILENAME="partitions.csv"
CONFIG_PARTITION_TABLE_FILENAME="partitions.csv"

6
examples/provisioning/legacy/console_prov/CMakeLists.txt
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# The following lines of boilerplate have to be in your project's CMakeLists
# in this exact order for cmake to work correctly
cmake_minimum_required(VERSION 3.5)
include($ENV{IDF_PATH}/tools/cmake/project.cmake)
project(console_prov)

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examples/provisioning/legacy/console_prov/README.md
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@ -1,208 +0,0 @@
# Console based Provisioning Example (Legacy)
> Check this example only if you wish to use console based provisioning. For any real applications, it is recommended to use the new `wifi_prov_mgr` example which is based on the simpler `wifi_provisioning` APIs.
(See the README.md file in the upper level 'examples' directory for more information about examples.)
`console_prov` example demonstrates the implementation and integration of various IDF components for building a console based provisioning application.
For this example UART console is chosen as the mode of transport, over which the provisioning related communication is to take place, between the device (to be provisioned) and the client (owner of the device).
In the provisioning process the device is configured as a Wi-Fi station with specified credentials. Once configured, the device will retain the Wi-Fi configuration, until a flash erase is performed.
Right after provisioning is complete, the UART console is deactivated.
`console_prov` uses the following components :
* `wifi_provisioning` : provides data structures and protocomm endpoint handlers for Wi-Fi configuration
* `protocomm` : for protocol based communication and secure session establishment
* `protobuf` : Google's protocol buffer library for serialization of protocomm data structures
This example can be used, as it is, for adding a provisioning service to any application intended for IoT. But it is more suitable for debugging protocomm and provisioning related components and feature additions.
## How to use example
### Hardware Required
Example should be able to run on any commonly available ESP32 development board.
### Application Required
To provision the device running this example, the `esp_prov.py` script needs to be run (found under `$IDF_PATH/tools/esp_prov`). This feature of `esp_prov` should work on all platforms, given the dependencies are satisfied.
### Configure the project
```
idf.py menuconfig
```
* Under Example Configuration set the following :
* Security Version (default 1)
* Proof of Possession (default "abcd1234")
### Build and Flash
Build the project and flash it to the board, then run monitor tool to view serial output:
```
idf.py -p PORT flash monitor
```
(To exit the serial monitor, type ``Ctrl-]``.)
See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.
## Example Output
```
I (388) app: Starting console provisioning
I (398) app_prov: Console provisioning started
.
.
.
>>
```
In a separate terminal run the `esp_prov.py` script under `$IDP_PATH/tools/esp_prov` directory (please replace `myssid` and `mypassword` with the credentials of the AP to which the device is supposed to connect to after provisioning). Assuming default example configuration, the script should be run as follows :
```
python esp_prov.py --transport console --proto_ver "V0.1" --sec_ver 1 --pop abcd1234 --ssid myssid --passphrase mypassword
```
A console will open up and the `Client->Device` commands have to be copied manually to the serial monitor console prompt :
```
==== Verifying protocol version ====
Client->Device msg : proto-ver 0 56302e31
Enter device->client msg :
```
On pasting the command on the serial monitor console, a `Device->Client` message will appear for each command :
```
>> proto-ver 0 56302e31
53554343455353
```
Copy this message back to the `esp_prov` console for proceeding to the next command :
```
==== Verifying protocol version ====
Client->Device msg : proto-ver 0 56302e31
Enter device->client msg : 53554343455353
==== Verified protocol version successfully ====
==== Starting Session ====
Client->Device msg : prov-session 0 10015a25a201220a20677106cc2f5b2acb5d8da26f0ad443df006daa1cd5bb3d75a8324d81ec5ef970
Enter device->client msg :
```
This process keeps on till the device gets provisioned.
Note that the commands are in the following format :
```
<endpoint name> <session id> <hex message>
```
This is helpful in understanding the provisioning process and the order in which the endpoints are communicated with.
The full execution sequence of `esp_prov`, as seen on the console, is shown here :
```
==== Verifying protocol version ====
Client->Device msg : proto-ver 0 56302e31
Enter device->client msg : 53554343455353
==== Verified protocol version successfully ====
==== Starting Session ====
Client->Device msg : prov-session 0 10015a25a201220a20677106cc2f5b2acb5d8da26f0ad443df006daa1cd5bb3d75a8324d81ec5ef970
Enter device->client msg : 10015a390801aa013412207566f4de191f600ea42de5c2b1df73f1f16685c2edb43d7c3ffc83d6b81ff61b1a103db6476536a88db10b7e0a172d4adef8
Client->Device msg : prov-session 0 10015a270802b20122122084ca311e51c904a94f8a249c049f7aed33b39671cc11f0b92b15b299ef5653b7
Enter device->client msg : 10015a270803ba01221a203246230190d5c1f5d94c01b56ac8cace1086cfb2d937a4a46cb6c79db7a35a8b
==== Session Established ====
==== Sending Wifi credential to esp32 ====
Client->Device msg : prov-config 0 8f0c8cb6f2d53c4cc53b29be8ba1aac3edbb1dead39117c34687d6
Enter device->client msg : 2e1f0eb0
==== Wifi Credentials sent successfully ====
==== Applying config to esp32 ====
Client->Device msg : prov-config 0 e8df
Enter device->client msg : 245c83f0
==== Apply config sent successfully ====
==== Wifi connection state ====
Client->Device msg : prov-config 0 2d36
Enter device->client msg : 1b38a7411b6e2608aae50a6571807e04a6e90520b3b1e3c1e5b38cea4b9022e56485b92ff84289df218311972a42eb
++++ WiFi state: connected ++++
==== Provisioning was successful ====
```
The serial monitor console, for above sequence of commands, would look like :
```
>> proto-ver 0 56302e31
53554343455353
>> prov-session 0 10015a25a201220a20677106cc2f5b2acb5d8da26f0ad443df006daa1cd5bb3d75a8324d81ec5ef970
10015a390801aa013412207566f4de191f600ea42de5c2b1df73f1f16685c2edb43d7c3ffc83d6b81ff61b1a103db6476536a88db10b7e0a172d4adef8
>> prov-session 0 10015a270802b20122122084ca311e51c904a94f8a249c049f7aed33b39671cc11f0b92b15b299ef5653b7
10015a270803ba01221a203246230190d5c1f5d94c01b56ac8cace1086cfb2d937a4a46cb6c79db7a35a8b
>> prov-config 0 8f0c8cb6f2d53c4cc53b29be8ba1aac3edbb1dead39117c34687d6
I (1073738) app_prov_handler: WiFi Credentials Received :
ssid : myssid
password : mypassword
2e1f0eb0
>> prov-config 0 e8df
I (1084218) app_prov_handler: WiFi Credentials Applied
245c83f0
>> prov-config 0 2d36
I (1089728) app_prov: STA Got IP
I (1089728) app: got ip:192.168.43.220
I (1099698) app_prov_handler: Connected state
1b38a7411b6e2608aae50a6571807e04a6e90520b3b1e3c1e5b38cea4b9022e56485b92ff84289df218311972a42eb
>>
```
After sometime the provisioning app will exit and UART console will be stopped
```
I (1119728) app_prov: Stopping provisioning
I (1119728) protocomm_console: Stopping console...
I (1119728) app_prov: Provisioning stopped
I (1119748) protocomm_console: Console stopped
```
## Troubleshooting
### Provisioning failed
It is possible that the Wi-Fi credentials provided were incorrect, or the device was not able to establish connection to the network, in which the the `esp_prov` script will notify failure (with reason) and the provisioning app will continue running, allowing the user to retry the process. Serial monitor log will display the failure along with disconnect reason :
```
E (39291) app_prov: STA Disconnected
E (39291) app_prov: Disconnect reason : 201
I (39291) app_prov: STA AP Not found
I (42021) app_prov_handler: Disconnected state
```
### Provisioning does not start
If the serial monitor log is different, as shown below :
```
I (539) app_prov: Found ssid myssid
I (539) app_prov: Found password mypassword
I (549) app: Starting WiFi station
```
It means the Wi-Fi credentials were already set by some other application flashed previously to your device. To erase these credentials either do full erase and then flash the example
```
make erase_flash
idf.py -p PORT flash monitor
```
Or, enable `Reset Provisioning` option under `Example Configuration` under menuconfig. But this will erase the saved Wi-Fi credentials every time the device boots, so this is not the preferred solution.

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@ -1,4 +0,0 @@
idf_component_register(SRCS "app_main.c"
"app_prov.c"
"app_prov_handlers.c"
INCLUDE_DIRS ".")

40
examples/provisioning/legacy/console_prov/main/Kconfig.projbuild
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@ -1,40 +0,0 @@
menu "Example Configuration"
config EXAMPLE_USE_SEC_1
bool
default y
prompt "Use Security Version 1"
help
Security version 1 used Curve25519 key exchange for establishing
secure session between device and client during provisioning
config EXAMPLE_USE_POP
bool
depends on EXAMPLE_USE_SEC_1
default y
prompt "Use proof-of-possession"
help
Proof-of-possession can be optionally used to prove that the device is indeed
in possession of the user who is provisioning the device. This proof-of-possession
is internally used to generate the shared secret through key exchange.
config EXAMPLE_POP
string "Proof-of-possession"
default "abcd1234"
depends on EXAMPLE_USE_POP
config EXAMPLE_RESET_PROVISIONED
bool
default n
prompt "Reset provisioned status of the device"
help
This erases the NVS to reset provisioned status of the device on every reboot.
Provisioned status is determined by the Wi-Fi STA configuration, saved on the NVS.
config EXAMPLE_AP_RECONN_ATTEMPTS
int "Maximum AP connection attempts"
default 5
help
Set the maximum connection attempts to perform when connecting to a Wi-Fi AP.
endmenu

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examples/provisioning/legacy/console_prov/main/app_main.c
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@ -1,116 +0,0 @@
/* Console based Provisioning Example
This example code is in the Public Domain (or CC0 licensed, at your option.)
Unless required by applicable law or agreed to in writing, this
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied.
*/
#include <string.h>
#include <freertos/FreeRTOS.h>
#include <freertos/task.h>
#include <esp_system.h>
#include <esp_wifi.h>
#include <esp_event.h>
#include <esp_log.h>
#include <nvs_flash.h>
#include <lwip/err.h>
#include <lwip/sys.h>
#include "app_prov.h"
#define EXAMPLE_AP_RECONN_ATTEMPTS CONFIG_EXAMPLE_AP_RECONN_ATTEMPTS
static const char *TAG = "app";
static void event_handler(void* arg, esp_event_base_t event_base,
int32_t event_id, void* event_data)
{
static int s_retry_num = 0;
if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_START) {
esp_wifi_connect();
} else if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_DISCONNECTED) {
if (s_retry_num < EXAMPLE_AP_RECONN_ATTEMPTS) {
esp_wifi_connect();
s_retry_num++;
ESP_LOGI(TAG, "retry to connect to the AP");
}
ESP_LOGI(TAG,"connect to the AP fail");
} else if (event_base == IP_EVENT && event_id == IP_EVENT_STA_GOT_IP) {
ip_event_got_ip_t* event = (ip_event_got_ip_t*) event_data;
ESP_LOGI(TAG, "got ip:" IPSTR, IP2STR(&event->ip_info.ip));
s_retry_num = 0;
}
}
static void wifi_init_sta(void)
{
/* Set our event handling */
ESP_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT, ESP_EVENT_ANY_ID, event_handler, NULL));
ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, event_handler, NULL));
/* Start Wi-Fi in station mode with credentials set during provisioning */
ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));
ESP_ERROR_CHECK(esp_wifi_start());
}
static void start_console_provisioning(void)
{
/* Security version */
int security = 0;
/* Proof of possession */
const protocomm_security_pop_t *pop = NULL;
#ifdef CONFIG_EXAMPLE_USE_SEC_1
security = 1;
#endif
/* Having proof of possession is optional */
#ifdef CONFIG_EXAMPLE_USE_POP
const static protocomm_security_pop_t app_pop = {
.data = (uint8_t *) CONFIG_EXAMPLE_POP,
.len = (sizeof(CONFIG_EXAMPLE_POP)-1)
};
pop = &app_pop;
#endif
ESP_ERROR_CHECK(app_prov_start_console_provisioning(security, pop));
}
void app_main(void)
{
/* Initialize networking stack */
ESP_ERROR_CHECK(esp_netif_init());
/* Create default event loop needed by the
* main app and the provisioning service */
ESP_ERROR_CHECK(esp_event_loop_create_default());
/* Initialize NVS needed by Wi-Fi */
ESP_ERROR_CHECK(nvs_flash_init());
/* Initialize Wi-Fi including netif with default config */
esp_netif_create_default_wifi_sta();
wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
ESP_ERROR_CHECK(esp_wifi_init(&cfg));
/* Check if device is provisioned */
bool provisioned;
if (app_prov_is_provisioned(&provisioned) != ESP_OK) {
ESP_LOGE(TAG, "Error getting device provisioning state");
return;
}
if (provisioned == false) {
/* If not provisioned, start provisioning via console */
ESP_LOGI(TAG, "Starting console provisioning");
start_console_provisioning();
} else {
/* Else start as station with credentials set during provisioning */
ESP_LOGI(TAG, "Starting WiFi station");
wifi_init_sta();
}
}

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@ -1,327 +0,0 @@
/* Console based Provisioning Example
This example code is in the Public Domain (or CC0 licensed, at your option.)
Unless required by applicable law or agreed to in writing, this
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied.
*/
#include <string.h>
#include <esp_log.h>
#include <esp_err.h>
#include <esp_wifi.h>
#include <nvs_flash.h>
#include <nvs.h>
#include <esp_event.h>
#include <esp_timer.h>
#include <protocomm.h>
#include <protocomm_console.h>
#include <protocomm_security0.h>
#include <protocomm_security1.h>
#include <wifi_provisioning/wifi_config.h>
#include "app_prov.h"
static const char *TAG = "app_prov";
/* Handler for catching WiFi events */
static void app_prov_event_handler(void* handler_arg, esp_event_base_t base, int32_t id, void* data);
/* Handlers for wifi_config provisioning endpoint */
extern wifi_prov_config_handlers_t wifi_prov_handlers;
/**
* @brief Data relevant to provisioning application
*/
struct app_prov_data {
protocomm_t *pc; /*!< Protocomm handler */
int security; /*!< Type of security to use with protocomm */
const protocomm_security_pop_t *pop; /*!< Pointer to proof of possession */
esp_timer_handle_t timer; /*!< Handle to timer */
/* State of WiFi Station */
wifi_prov_sta_state_t wifi_state;
/* Code for WiFi station disconnection (if disconnected) */
wifi_prov_sta_fail_reason_t wifi_disconnect_reason;
};
/* Pointer to provisioning application data */
static struct app_prov_data *g_prov;
static esp_err_t app_prov_start_service(void)
{
/* Create new protocomm instance */
g_prov->pc = protocomm_new();
if (g_prov->pc == NULL) {
ESP_LOGE(TAG, "Failed to create new protocomm instance");
return ESP_FAIL;
}
/* Config for protocomm_console_start() */
protocomm_console_config_t config = PROTOCOMM_CONSOLE_DEFAULT_CONFIG();
/* Start protocomm using console */
if (protocomm_console_start(g_prov->pc, &config) != ESP_OK) {
ESP_LOGE(TAG, "Failed to start console provisioning");
return ESP_FAIL;
}
/* Set protocomm version verification endpoint for protocol */
protocomm_set_version(g_prov->pc, "proto-ver", "V0.1");
/* Set protocomm security type for endpoint */
if (g_prov->security == 0) {
protocomm_set_security(g_prov->pc, "prov-session", &protocomm_security0, NULL);
} else if (g_prov->security == 1) {
protocomm_set_security(g_prov->pc, "prov-session", &protocomm_security1, g_prov->pop);
}
/* Add endpoint for provisioning to set wifi station config */
if (protocomm_add_endpoint(g_prov->pc, "prov-config",
wifi_prov_config_data_handler,
(void *) &wifi_prov_handlers) != ESP_OK) {
ESP_LOGE(TAG, "Failed to set provisioning endpoint");
protocomm_console_stop(g_prov->pc);
return ESP_FAIL;
}
ESP_LOGI(TAG, "Provisioning started");
return ESP_OK;
}
static void app_prov_stop_service(void)
{
/* Remove provisioning endpoint */
protocomm_remove_endpoint(g_prov->pc, "prov-config");
/* Unset provisioning security */
protocomm_unset_security(g_prov->pc, "prov-session");
/* Unset provisioning version endpoint */
protocomm_unset_version(g_prov->pc, "proto-ver");
/* Stop protocomm console service */
protocomm_console_stop(g_prov->pc);
/* Delete protocomm instance */
protocomm_delete(g_prov->pc);
/* Remove event handler */
esp_event_handler_unregister(WIFI_EVENT, ESP_EVENT_ANY_ID, app_prov_event_handler);
esp_event_handler_unregister(IP_EVENT, IP_EVENT_STA_GOT_IP, app_prov_event_handler);
}
/* Task spawned by timer callback */
static void stop_prov_task(void * arg)
{
ESP_LOGI(TAG, "Stopping provisioning");
app_prov_stop_service();
/* Timer not needed anymore */
esp_timer_handle_t timer = g_prov->timer;
esp_timer_delete(timer);
g_prov->timer = NULL;
/* Free provisioning process data */
free(g_prov);
g_prov = NULL;
ESP_LOGI(TAG, "Provisioning stopped");
vTaskDelete(NULL);
}
/* Callback to be invoked by timer */
static void _stop_prov_cb(void * arg)
{
xTaskCreate(&stop_prov_task, "stop_prov", 2048, NULL, tskIDLE_PRIORITY, NULL);
}
/* Event handler for starting/stopping provisioning */
static void app_prov_event_handler(void* handler_arg, esp_event_base_t event_base,
int32_t event_id, void* event_data)
{
/* If pointer to provisioning application data is NULL
* then provisioning is not running */
if (!g_prov) {
return;
}
if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_START) {
ESP_LOGI(TAG, "STA Start");
/* Once configuration is received through protocomm,
* device is started as station. Once station starts,
* wait for connection to establish with configured
* host SSID and password */
g_prov->wifi_state = WIFI_PROV_STA_CONNECTING;
} else if (event_base == IP_EVENT && event_id == IP_EVENT_STA_GOT_IP) {
ESP_LOGI(TAG, "STA Got IP");
/* Station got IP. That means configuration is successful.
* Schedule timer to stop provisioning app after 30 seconds. */
g_prov->wifi_state = WIFI_PROV_STA_CONNECTED;
if (g_prov && g_prov->timer) {
esp_timer_start_once(g_prov->timer, 30000*1000U);
}
} else if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_DISCONNECTED) {
ESP_LOGE(TAG, "STA Disconnected");
/* Station couldn't connect to configured host SSID */
g_prov->wifi_state = WIFI_PROV_STA_DISCONNECTED;
wifi_event_sta_disconnected_t* disconnected = (wifi_event_sta_disconnected_t*) event_data;
ESP_LOGE(TAG, "Disconnect reason : %d", disconnected->reason);
/* Set code corresponding to the reason for disconnection */
switch (disconnected->reason) {
case WIFI_REASON_AUTH_EXPIRE:
case WIFI_REASON_4WAY_HANDSHAKE_TIMEOUT:
case WIFI_REASON_BEACON_TIMEOUT:
case WIFI_REASON_AUTH_FAIL:
case WIFI_REASON_ASSOC_FAIL:
case WIFI_REASON_HANDSHAKE_TIMEOUT:
ESP_LOGI(TAG, "STA Auth Error");
g_prov->wifi_disconnect_reason = WIFI_PROV_STA_AUTH_ERROR;
break;
case WIFI_REASON_NO_AP_FOUND:
ESP_LOGI(TAG, "STA AP Not found");
g_prov->wifi_disconnect_reason = WIFI_PROV_STA_AP_NOT_FOUND;
break;
default:
/* If none of the expected reasons,
* retry connecting to host SSID */
g_prov->wifi_state = WIFI_PROV_STA_CONNECTING;
}
esp_wifi_connect();
}
}
esp_err_t app_prov_get_wifi_state(wifi_prov_sta_state_t* state)
{
if (g_prov == NULL || state == NULL) {
return ESP_FAIL;
}
*state = g_prov->wifi_state;
return ESP_OK;
}
esp_err_t app_prov_get_wifi_disconnect_reason(wifi_prov_sta_fail_reason_t* reason)
{
if (g_prov == NULL || reason == NULL) {
return ESP_FAIL;
}
if (g_prov->wifi_state != WIFI_PROV_STA_DISCONNECTED) {
return ESP_FAIL;
}
*reason = g_prov->wifi_disconnect_reason;
return ESP_OK;
}
esp_err_t app_prov_is_provisioned(bool *provisioned)
{
*provisioned = false;
#ifdef CONFIG_EXAMPLE_RESET_PROVISIONED
esp_wifi_restore();
return ESP_OK;
#endif
/* Get WiFi Station configuration */
wifi_config_t wifi_cfg;
if (esp_wifi_get_config(WIFI_IF_STA, &wifi_cfg) != ESP_OK) {
return ESP_FAIL;
}
if (strlen((const char*) wifi_cfg.sta.ssid)) {
*provisioned = true;
ESP_LOGI(TAG, "Found ssid %s", (const char*) wifi_cfg.sta.ssid);
ESP_LOGI(TAG, "Found password %s", (const char*) wifi_cfg.sta.password);
}
return ESP_OK;
}
esp_err_t app_prov_configure_sta(wifi_config_t *wifi_cfg)
{
/* Configure WiFi as station */
if (esp_wifi_set_mode(WIFI_MODE_STA) != ESP_OK) {
ESP_LOGE(TAG, "Failed to set WiFi mode");
return ESP_FAIL;
}
/* Configure WiFi station with host credentials
* provided during provisioning */
if (esp_wifi_set_config(WIFI_IF_STA, wifi_cfg) != ESP_OK) {
ESP_LOGE(TAG, "Failed to set WiFi configuration");
return ESP_FAIL;
}
/* Start WiFi */
if (esp_wifi_start() != ESP_OK) {
ESP_LOGE(TAG, "Failed to set WiFi configuration");
return ESP_FAIL;
}
/* Connect to AP */
if (esp_wifi_connect() != ESP_OK) {
ESP_LOGE(TAG, "Failed to connect WiFi");
return ESP_FAIL;
}
if (g_prov) {
/* Reset wifi station state for provisioning app */
g_prov->wifi_state = WIFI_PROV_STA_CONNECTING;
}
return ESP_OK;
}
esp_err_t app_prov_start_console_provisioning(int security, const protocomm_security_pop_t *pop)
{
/* If provisioning app data present,
* means provisioning app is already running */
if (g_prov) {
ESP_LOGI(TAG, "Invalid provisioning state");
return ESP_FAIL;
}
/* Allocate memory for provisioning app data */
g_prov = (struct app_prov_data *) calloc(1, sizeof(struct app_prov_data));
if (!g_prov) {
ESP_LOGI(TAG, "Unable to allocate prov data");
return ESP_ERR_NO_MEM;
}
/* Initialize app data */
g_prov->pop = pop;
g_prov->security = security;
/* Create timer object as a member of app data */
esp_timer_create_args_t timer_conf = {
.callback = _stop_prov_cb,
.arg = NULL,
.dispatch_method = ESP_TIMER_TASK,
.name = "stop_console_tm"
};
esp_err_t err = esp_timer_create(&timer_conf, &g_prov->timer);
if (err != ESP_OK) {
ESP_LOGE(TAG, "Failed to create timer");
return err;
}
err = esp_event_handler_register(WIFI_EVENT, ESP_EVENT_ANY_ID, app_prov_event_handler, NULL);
if (err != ESP_OK) {
ESP_LOGE(TAG, "Failed to register WiFi event handler");
return err;
}
err = esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, app_prov_event_handler, NULL);
if (err != ESP_OK) {
ESP_LOGE(TAG, "Failed to register IP event handler");
return err;
}
/* Start provisioning service through console */
err = app_prov_start_service();
if (err != ESP_OK) {
ESP_LOGE(TAG, "Provisioning failed to start");
return err;
}
ESP_LOGI(TAG, "Console provisioning started");
return ESP_OK;
}

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@ -1,79 +0,0 @@
/* Console based Provisioning Example
This example code is in the Public Domain (or CC0 licensed, at your option.)
Unless required by applicable law or agreed to in writing, this
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied.
*/
#pragma once
#include <protocomm_security.h>
#include <wifi_provisioning/wifi_config.h>
/**
* @brief Get state of WiFi Station during provisioning
*
* @note WiFi is initially configured as AP, when
* provisioning starts. After provisioning data
* is provided by user, the WiFi is reconfigured
* to run as both AP and Station.
*
* @param[out] state Pointer to wifi_prov_sta_state_t variable to be filled
*
* @return
* - ESP_OK : Successfully retrieved wifi state
* - ESP_FAIL : Provisioning app not running
*/
esp_err_t app_prov_get_wifi_state(wifi_prov_sta_state_t* state);
/**
* @brief Get reason code in case of WiFi station
* disconnection during provisioning
*
* @param[out] reason Pointer to wifi_prov_sta_fail_reason_t variable to be filled
*
* @return
* - ESP_OK : Successfully retrieved wifi disconnect reason
* - ESP_FAIL : Provisioning app not running
*/
esp_err_t app_prov_get_wifi_disconnect_reason(wifi_prov_sta_fail_reason_t* reason);
/**
* @brief Checks if device is provisioned
* *
* @param[out] provisioned True if provisioned, else false
*
* @return
* - ESP_OK : Retrieved provision state successfully
* - ESP_FAIL : Failed to retrieve provision state
*/
esp_err_t app_prov_is_provisioned(bool *provisioned);
/**
* @brief Runs WiFi as Station
*
* Configures the WiFi station mode to connect to the
* SSID and password specified in config structure,
* and starts WiFi to run as station
*
* @param[in] wifi_cfg Pointer to WiFi cofiguration structure
*
* @return
* - ESP_OK : WiFi configured and started successfully
* - ESP_FAIL : Failed to set configuration
*/
esp_err_t app_prov_configure_sta(wifi_config_t *wifi_cfg);
/**
* @brief Start provisioning via Console
*
* @param[in] security Security mode
* @param[in] pop Pointer to proof of possession (NULL if not present)
*
* @return
* - ESP_OK : Provisioning started successfully
* - ESP_FAIL : Failed to start
*/
esp_err_t app_prov_start_console_provisioning(int security, const protocomm_security_pop_t *pop);

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@ -1,135 +0,0 @@
/* Console based Provisioning Example
This example code is in the Public Domain (or CC0 licensed, at your option.)
Unless required by applicable law or agreed to in writing, this
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied.
*/
/* This file is mostly a boiler-plate code that applications can use without much change */
#include <stdio.h>
#include <string.h>
#include <esp_err.h>
#include <esp_log.h>
#include <esp_wifi.h>
#include <esp_netif.h>
#include <wifi_provisioning/wifi_config.h>
#include "app_prov.h"
static const char* TAG = "app_prov_handler";
/* Provide definition of wifi_prov_ctx_t */
struct wifi_prov_ctx {
wifi_config_t wifi_cfg;
};
static wifi_config_t *get_config(wifi_prov_ctx_t **ctx)
{
return (*ctx ? &(*ctx)->wifi_cfg : NULL);
}
static wifi_config_t *new_config(wifi_prov_ctx_t **ctx)
{
free(*ctx);
(*ctx) = (wifi_prov_ctx_t *) calloc(1, sizeof(wifi_prov_ctx_t));
return get_config(ctx);
}
static void free_config(wifi_prov_ctx_t **ctx)
{
free(*ctx);
*ctx = NULL;
}
static esp_err_t get_status_handler(wifi_prov_config_get_data_t *resp_data, wifi_prov_ctx_t **ctx)
{
/* Initialize to zero */
memset(resp_data, 0, sizeof(wifi_prov_config_get_data_t));
if (app_prov_get_wifi_state(&resp_data->wifi_state) != ESP_OK) {
ESP_LOGW(TAG, "Prov app not running");
return ESP_FAIL;
}
if (resp_data->wifi_state == WIFI_PROV_STA_CONNECTED) {
ESP_LOGI(TAG, "Connected state");
/* IP Addr assigned to STA */
esp_netif_ip_info_t ip_info;
esp_netif_get_ip_info(esp_netif_get_handle_from_ifkey("WIFI_STA_DEF"), &ip_info);
esp_ip4addr_ntoa(&ip_info.ip, resp_data->conn_info.ip_addr, sizeof(resp_data->conn_info.ip_addr));
/* AP information to which STA is connected */
wifi_ap_record_t ap_info;
esp_wifi_sta_get_ap_info(&ap_info);
memcpy(resp_data->conn_info.bssid, (char *)ap_info.bssid, sizeof(ap_info.bssid));
memcpy(resp_data->conn_info.ssid, (char *)ap_info.ssid, sizeof(ap_info.ssid));
resp_data->conn_info.channel = ap_info.primary;
resp_data->conn_info.auth_mode = ap_info.authmode;
} else if (resp_data->wifi_state == WIFI_PROV_STA_DISCONNECTED) {
ESP_LOGI(TAG, "Disconnected state");
/* If disconnected, convey reason */
app_prov_get_wifi_disconnect_reason(&resp_data->fail_reason);
} else {
ESP_LOGI(TAG, "Connecting state");
}
return ESP_OK;
}
static esp_err_t set_config_handler(const wifi_prov_config_set_data_t *req_data, wifi_prov_ctx_t **ctx)
{
wifi_config_t *wifi_cfg = get_config(ctx);
if (wifi_cfg) {
free_config(ctx);
}
wifi_cfg = new_config(ctx);
if (!wifi_cfg) {
ESP_LOGE(TAG, "Unable to alloc wifi config");
return ESP_FAIL;
}
ESP_LOGI(TAG, "WiFi Credentials Received : \n\tssid %s \n\tpassword %s",
req_data->ssid, req_data->password);
/* Using memcpy allows the max SSID length to be 32 bytes (as per 802.11 standard).
* But this doesn't guarantee that the saved SSID will be null terminated, because
* wifi_cfg->sta.ssid is also 32 bytes long (without extra 1 byte for null character).
* Although, this is not a matter for concern because esp_wifi library reads the SSID
* upto 32 bytes in absence of null termination */
const size_t ssid_len = strnlen(req_data->ssid, sizeof(wifi_cfg->sta.ssid));
/* Ensure SSID less than 32 bytes is null terminated */
memset(wifi_cfg->sta.ssid, 0, sizeof(wifi_cfg->sta.ssid));
memcpy(wifi_cfg->sta.ssid, req_data->ssid, ssid_len);
strlcpy((char *) wifi_cfg->sta.password, req_data->password, sizeof(wifi_cfg->sta.password));
return ESP_OK;
}
static esp_err_t apply_config_handler(wifi_prov_ctx_t **ctx)
{
wifi_config_t *wifi_cfg = get_config(ctx);
if (!wifi_cfg) {
ESP_LOGE(TAG, "WiFi config not set");
return ESP_FAIL;
}
app_prov_configure_sta(wifi_cfg);
ESP_LOGI(TAG, "WiFi Credentials Applied");
free_config(ctx);
return ESP_OK;
}
wifi_prov_config_handlers_t wifi_prov_handlers = {
.get_status_handler = get_status_handler,
.set_config_handler = set_config_handler,
.apply_config_handler = apply_config_handler,
.ctx = NULL
};

6
examples/provisioning/legacy/custom_config/CMakeLists.txt
View File

@ -1,6 +0,0 @@
# The following lines of boilerplate have to be in your project's CMakeLists
# in this exact order for cmake to work correctly
cmake_minimum_required(VERSION 3.5)
include($ENV{IDF_PATH}/tools/cmake/project.cmake)
project(custom_config)

144
examples/provisioning/legacy/custom_config/README.md
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@ -1,144 +0,0 @@
# SoftAP + HTTPD based Provisioning Example featuring Custom configuration (Legacy)
> Note: It is recommended to use the new `wifi_prov_mgr` example which is based on the simpler `wifi_provisioning` APIs. Check this example only if you wish to use lower level provisioning and protocomm APIs and want more control over the handlers.
(See the README.md file in the upper level 'examples' directory for more information about examples.)
(Please see the README.md under `softap_prov` example before this.)
`custom_config` example demonstrates the implementation and integration of various IDF components for building a provisioning application.
This is same as `softap_prov` example, with added feature for configuration of some custom data (just like Wi-Fi configuration) during provisioning. The custom data provided during provisioning is simply printed on the serial monitor. The rest of the program functions just like `softap_prov`, ie. the device is configured as Wi-Fi station with supplied AP credentials.
`custom_config` uses the following components :
* `wifi_provisioning` : provides data structures and protocomm endpoint handlers for Wi-Fi configuration
* `protocomm` : for protocol based communication and secure session establishment
* `protobuf` : Google's protocol buffer library for serialization of protocomm data structures
Also, it uses a component provided with this example `custom_provisioning` which provides data structures and protocomm endpoint handlers for custom data configuration
## How to use example
### Hardware Required
Example should be able to run on any commonly available ESP32 development board.
### Application Required
To provision the device running this example, the `esp_prov.py` script needs to be run (found under `$IDF_PATH/tools/esp_prov`). This feature of `esp_prov` should work on all platforms, given the dependencies are satisfied.
### Configure the project
```
idf.py menuconfig
```
* Under Example Configuration set the following :
* SoftAP SSID (Defaults to PROV_<MACID>)
* SoftAP Password (Defaults to PROV_PASS)
* Security Version (default 0)
* Proof of Possession (by default not needed for security version 0)
### Build and Flash
Build the project and flash it to the board, then run monitor tool to view serial output:
```
idf.py -p PORT flash monitor
```
(To exit the serial monitor, type ``Ctrl-]``.)
See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.
## Example Output
```
I (1562) app: SoftAP started
I (1572) app_prov: SoftAP Provisioning started with SSID 'PROV_261FCC', Password 'PROV_PASS'
```
Make sure to connect the client computer to the SoftAP network, whose SSID and Password are displayed in the serial monitor log. On successful connection the monitor log will show :
```
I (519482) tcpip_adapter: softAP assign IP to station,IP is: 192.168.4.2
```
In a separate terminal run the `esp_prov.py` script under `$IDP_PATH/tools/esp_prov` directory (please replace the values corresponding to the parameters `--custom_info` and `--custom_ver` with your desired values for the custom configuration). Assuming default example configuration, the script should be run as follows :
```
python esp_prov.py --transport softap --service_name "192.168.4.1:80" --sec_ver 0 --ssid myssid --passphrase mypassword --custom_config --custom_info "some string" --custom_ver 4321
```
Above command will perform the provisioning steps, and the monitor log should display something like this :
```
I (92734) app_prov_handler: Custom config received :
Info : some string
Version : 4321
.
.
.
I (634572) app_prov_handler: WiFi Credentials Received :
ssid : myssid
password : mypassword
.
.
.
I (634652) app_prov_handler: WiFi Credentials Applied
I (634652) app_prov: STA Start
.
.
.
I (688270) app_prov_handler: Connecting state
.
.
.
I (637732) app_prov: STA Got IP
I (637732) app: got ip:192.168.43.220
.
.
.
I (654562) app_prov_handler: Connected state
```
After sometime the provisioning app will exit, SoftAP will be turned off and HTTP server will be stopped
```
I (667732) app_prov: Stopping provisioning
I (668732) app_prov: Provisioning stopped
I (668742) app: SoftAP stopped
```
## Troubleshooting
### Provisioning failed
It is possible that the Wi-Fi credentials provided were incorrect, or the device was not able to establish connection to the network, in which the the `esp_prov` script will notify failure (with reason) and the provisioning app will continue running, allowing the user to retry the process. Serial monitor log will display the failure along with disconnect reason :
```
E (39291) app_prov: STA Disconnected
E (39291) app_prov: Disconnect reason : 201
I (39291) app_prov: STA AP Not found
I (42021) app_prov_handler: Disconnected state
```
### Provisioning does not start
If the serial monitor log is different, as shown below :
```
I (539) app_prov: Found ssid myssid
I (539) app_prov: Found password mypassword
I (549) app: Starting WiFi station
```
It means the Wi-Fi credentials were already set by some other application flashed previously to your device. To erase these credentials either do full erase and then flash the example
```
make erase_flash
idf.py -p PORT flash monitor
```
Or, enable `Reset Provisioning` option under `Example Configuration` under menuconfig. But this will erase the saved Wi-Fi credentials every time the device boots, so this is not the preferred solution.

5
examples/provisioning/legacy/custom_config/components/custom_provisioning/CMakeLists.txt
View File

@ -1,5 +0,0 @@
idf_component_register(SRCS "src/custom_config.c"
"proto-c/custom_config.pb-c.c"
INCLUDE_DIRS include
PRIV_INCLUDE_DIRS proto-c
PRIV_REQUIRES protobuf-c)

44
examples/provisioning/legacy/custom_config/components/custom_provisioning/include/custom_provisioning/custom_config.h
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@ -1,44 +0,0 @@
// Copyright 2018 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.
#ifndef _CUSTOM_PROV_CONFIG_H_
#define _CUSTOM_PROV_CONFIG_H_
/**
* @brief Custom config data received by device
*/
typedef struct {
char info[128];
int version;
} custom_config_t;
/**
* @brief Internal handler for receiving and responding to protocomm
* requests from master
*
* This is to be passed as priv_data for protocomm request handler
* (refer to `custom_prov_config_data_handler()`) when calling `protocomm_add_endpoint()`.
*/
typedef esp_err_t (*custom_prov_config_handler_t) (const custom_config_t *config);
/**
* @brief Handler for receiving and responding to requests from master
*
* This is to be registered as the `wifi_config` endpoint handler
* (protocomm `protocomm_req_handler_t`) using `protocomm_add_endpoint()`
*/
esp_err_t custom_prov_config_data_handler(uint32_t session_id, const uint8_t *inbuf, ssize_t inlen,
uint8_t **outbuf, ssize_t *outlen, void *priv_data);
#endif

229
examples/provisioning/legacy/custom_config/components/custom_provisioning/proto-c/custom_config.pb-c.c
View File

@ -1,229 +0,0 @@
/* Generated by the protocol buffer compiler. DO NOT EDIT! */
/* Generated from: custom_config.proto */
/* Do not generate deprecated warnings for self */
#ifndef PROTOBUF_C__NO_DEPRECATED
#define PROTOBUF_C__NO_DEPRECATED
#endif
#include "custom_config.pb-c.h"
void custom_config_request__init
(CustomConfigRequest *message)
{
static const CustomConfigRequest init_value = CUSTOM_CONFIG_REQUEST__INIT;
*message = init_value;
}
size_t custom_config_request__get_packed_size
(const CustomConfigRequest *message)
{
assert(message->base.descriptor == &custom_config_request__descriptor);
return protobuf_c_message_get_packed_size ((const ProtobufCMessage*)(message));
}
size_t custom_config_request__pack
(const CustomConfigRequest *message,
uint8_t *out)
{
assert(message->base.descriptor == &custom_config_request__descriptor);
return protobuf_c_message_pack ((const ProtobufCMessage*)message, out);
}
size_t custom_config_request__pack_to_buffer
(const CustomConfigRequest *message,
ProtobufCBuffer *buffer)
{
assert(message->base.descriptor == &custom_config_request__descriptor);
return protobuf_c_message_pack_to_buffer ((const ProtobufCMessage*)message, buffer);
}
CustomConfigRequest *
custom_config_request__unpack
(ProtobufCAllocator *allocator,
size_t len,
const uint8_t *data)
{
return (CustomConfigRequest *)
protobuf_c_message_unpack (&custom_config_request__descriptor,
allocator, len, data);
}
void custom_config_request__free_unpacked
(CustomConfigRequest *message,
ProtobufCAllocator *allocator)
{
if(!message)
return;
assert(message->base.descriptor == &custom_config_request__descriptor);
protobuf_c_message_free_unpacked ((ProtobufCMessage*)message, allocator);
}
void custom_config_response__init
(CustomConfigResponse *message)
{
static const CustomConfigResponse init_value = CUSTOM_CONFIG_RESPONSE__INIT;
*message = init_value;
}
size_t custom_config_response__get_packed_size
(const CustomConfigResponse *message)
{
assert(message->base.descriptor == &custom_config_response__descriptor);
return protobuf_c_message_get_packed_size ((const ProtobufCMessage*)(message));
}
size_t custom_config_response__pack
(const CustomConfigResponse *message,
uint8_t *out)
{
assert(message->base.descriptor == &custom_config_response__descriptor);
return protobuf_c_message_pack ((const ProtobufCMessage*)message, out);
}
size_t custom_config_response__pack_to_buffer
(const CustomConfigResponse *message,
ProtobufCBuffer *buffer)
{
assert(message->base.descriptor == &custom_config_response__descriptor);
return protobuf_c_message_pack_to_buffer ((const ProtobufCMessage*)message, buffer);
}
CustomConfigResponse *
custom_config_response__unpack
(ProtobufCAllocator *allocator,
size_t len,
const uint8_t *data)
{
return (CustomConfigResponse *)
protobuf_c_message_unpack (&custom_config_response__descriptor,
allocator, len, data);
}
void custom_config_response__free_unpacked
(CustomConfigResponse *message,
ProtobufCAllocator *allocator)
{
if(!message)
return;
assert(message->base.descriptor == &custom_config_response__descriptor);
protobuf_c_message_free_unpacked ((ProtobufCMessage*)message, allocator);
}
static const ProtobufCFieldDescriptor custom_config_request__field_descriptors[2] =
{
{
"info",
1,
PROTOBUF_C_LABEL_NONE,
PROTOBUF_C_TYPE_STRING,
0, /* quantifier_offset */
offsetof(CustomConfigRequest, info),
NULL,
&protobuf_c_empty_string,
0, /* flags */
0,NULL,NULL /* reserved1,reserved2, etc */
},
{
"version",
2,
PROTOBUF_C_LABEL_NONE,
PROTOBUF_C_TYPE_INT32,
0, /* quantifier_offset */
offsetof(CustomConfigRequest, version),
NULL,
NULL,
0, /* flags */
0,NULL,NULL /* reserved1,reserved2, etc */
},
};
static const unsigned custom_config_request__field_indices_by_name[] = {
0, /* field[0] = info */
1, /* field[1] = version */
};
static const ProtobufCIntRange custom_config_request__number_ranges[1 + 1] =
{
{ 1, 0 },
{ 0, 2 }
};
const ProtobufCMessageDescriptor custom_config_request__descriptor =
{
PROTOBUF_C__MESSAGE_DESCRIPTOR_MAGIC,
"CustomConfigRequest",
"CustomConfigRequest",
"CustomConfigRequest",
"",
sizeof(CustomConfigRequest),
2,
custom_config_request__field_descriptors,
custom_config_request__field_indices_by_name,
1, custom_config_request__number_ranges,
(ProtobufCMessageInit) custom_config_request__init,
NULL,NULL,NULL /* reserved[123] */
};
static const ProtobufCFieldDescriptor custom_config_response__field_descriptors[2] =
{
{
"status",
1,
PROTOBUF_C_LABEL_NONE,
PROTOBUF_C_TYPE_ENUM,
0, /* quantifier_offset */
offsetof(CustomConfigResponse, status),
&custom_config_status__descriptor,
NULL,
0, /* flags */
0,NULL,NULL /* reserved1,reserved2, etc */
},
{
"dummy",
2,
PROTOBUF_C_LABEL_NONE,
PROTOBUF_C_TYPE_INT32,
0, /* quantifier_offset */
offsetof(CustomConfigResponse, dummy),
NULL,
NULL,
0, /* flags */
0,NULL,NULL /* reserved1,reserved2, etc */
},
};
static const unsigned custom_config_response__field_indices_by_name[] = {
1, /* field[1] = dummy */
0, /* field[0] = status */
};
static const ProtobufCIntRange custom_config_response__number_ranges[1 + 1] =
{
{ 1, 0 },
{ 0, 2 }
};
const ProtobufCMessageDescriptor custom_config_response__descriptor =
{
PROTOBUF_C__MESSAGE_DESCRIPTOR_MAGIC,
"CustomConfigResponse",
"CustomConfigResponse",
"CustomConfigResponse",
"",
sizeof(CustomConfigResponse),
2,
custom_config_response__field_descriptors,
custom_config_response__field_indices_by_name,
1, custom_config_response__number_ranges,
(ProtobufCMessageInit) custom_config_response__init,
NULL,NULL,NULL /* reserved[123] */
};
static const ProtobufCEnumValue custom_config_status__enum_values_by_number[2] =
{
{ "ConfigSuccess", "CUSTOM_CONFIG_STATUS__ConfigSuccess", 0 },
{ "ConfigFail", "CUSTOM_CONFIG_STATUS__ConfigFail", 1 },
};
static const ProtobufCIntRange custom_config_status__value_ranges[] = {
{0, 0},{0, 2}
};
static const ProtobufCEnumValueIndex custom_config_status__enum_values_by_name[2] =
{
{ "ConfigFail", 1 },
{ "ConfigSuccess", 0 },
};
const ProtobufCEnumDescriptor custom_config_status__descriptor =
{
PROTOBUF_C__ENUM_DESCRIPTOR_MAGIC,
"CustomConfigStatus",
"CustomConfigStatus",
"CustomConfigStatus",
"",
2,
custom_config_status__enum_values_by_number,
2,
custom_config_status__enum_values_by_name,
1,
custom_config_status__value_ranges,
NULL,NULL,NULL,NULL /* reserved[1234] */
};

113
examples/provisioning/legacy/custom_config/components/custom_provisioning/proto-c/custom_config.pb-c.h
View File

@ -1,113 +0,0 @@
/* Generated by the protocol buffer compiler. DO NOT EDIT! */
/* Generated from: custom_config.proto */
#ifndef PROTOBUF_C_custom_5fconfig_2eproto__INCLUDED
#define PROTOBUF_C_custom_5fconfig_2eproto__INCLUDED
#include <protobuf-c/protobuf-c.h>
PROTOBUF_C__BEGIN_DECLS
#if PROTOBUF_C_VERSION_NUMBER < 1003000
# error This file was generated by a newer version of protoc-c which is incompatible with your libprotobuf-c headers. Please update your headers.
#elif 1003000 < PROTOBUF_C_MIN_COMPILER_VERSION
# error This file was generated by an older version of protoc-c which is incompatible with your libprotobuf-c headers. Please regenerate this file with a newer version of protoc-c.
#endif
typedef struct _CustomConfigRequest CustomConfigRequest;
typedef struct _CustomConfigResponse CustomConfigResponse;
/* --- enums --- */
typedef enum _CustomConfigStatus {
CUSTOM_CONFIG_STATUS__ConfigSuccess = 0,
CUSTOM_CONFIG_STATUS__ConfigFail = 1
PROTOBUF_C__FORCE_ENUM_TO_BE_INT_SIZE(CUSTOM_CONFIG_STATUS)
} CustomConfigStatus;
/* --- messages --- */
struct _CustomConfigRequest
{
ProtobufCMessage base;
char *info;
int32_t version;
};
#define CUSTOM_CONFIG_REQUEST__INIT \
{ PROTOBUF_C_MESSAGE_INIT (&custom_config_request__descriptor) \
, (char *)protobuf_c_empty_string, 0 }
struct _CustomConfigResponse
{
ProtobufCMessage base;
CustomConfigStatus status;
int32_t dummy;
};
#define CUSTOM_CONFIG_RESPONSE__INIT \
{ PROTOBUF_C_MESSAGE_INIT (&custom_config_response__descriptor) \
, CUSTOM_CONFIG_STATUS__ConfigSuccess, 0 }
/* CustomConfigRequest methods */
void custom_config_request__init
(CustomConfigRequest *message);
size_t custom_config_request__get_packed_size
(const CustomConfigRequest *message);
size_t custom_config_request__pack
(const CustomConfigRequest *message,
uint8_t *out);
size_t custom_config_request__pack_to_buffer
(const CustomConfigRequest *message,
ProtobufCBuffer *buffer);
CustomConfigRequest *
custom_config_request__unpack
(ProtobufCAllocator *allocator,
size_t len,
const uint8_t *data);
void custom_config_request__free_unpacked
(CustomConfigRequest *message,
ProtobufCAllocator *allocator);
/* CustomConfigResponse methods */
void custom_config_response__init
(CustomConfigResponse *message);
size_t custom_config_response__get_packed_size
(const CustomConfigResponse *message);
size_t custom_config_response__pack
(const CustomConfigResponse *message,
uint8_t *out);
size_t custom_config_response__pack_to_buffer
(const CustomConfigResponse *message,
ProtobufCBuffer *buffer);
CustomConfigResponse *
custom_config_response__unpack
(ProtobufCAllocator *allocator,
size_t len,
const uint8_t *data);
void custom_config_response__free_unpacked
(CustomConfigResponse *message,
ProtobufCAllocator *allocator);
/* --- per-message closures --- */
typedef void (*CustomConfigRequest_Closure)
(const CustomConfigRequest *message,
void *closure_data);
typedef void (*CustomConfigResponse_Closure)
(const CustomConfigResponse *message,
void *closure_data);
/* --- services --- */
/* --- descriptors --- */
extern const ProtobufCEnumDescriptor custom_config_status__descriptor;
extern const ProtobufCMessageDescriptor custom_config_request__descriptor;
extern const ProtobufCMessageDescriptor custom_config_response__descriptor;
PROTOBUF_C__END_DECLS
#endif /* PROTOBUF_C_custom_5fconfig_2eproto__INCLUDED */

26
examples/provisioning/legacy/custom_config/components/custom_provisioning/proto/CMakeLists.txt
View File

@ -1,26 +0,0 @@
cmake_minimum_required(VERSION 3.5)
set(PROTO_COMPILER "protoc")
set(PROTO_C_COMPILER "protoc-c")
set(C_OUT_PATH "${CMAKE_CURRENT_LIST_DIR}/../proto-c")
set(PY_OUT_PATH "${CMAKE_CURRENT_LIST_DIR}/../python")
set(PROTO_SRCS "custom_config.proto")
add_custom_target(c_proto
COMMAND ${PROTO_C_COMPILER} --c_out=${C_OUT_PATH} -I . ${PROTO_SRCS}
VERBATIM
WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}
)
add_custom_target(python_proto
COMMAND ${PROTO_COMPILER} --python_out=${PY_OUT_PATH} -I . ${PROTO_SRCS}
VERBATIM
WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}
)
add_custom_target(proto ALL
DEPENDS c_proto python_proto
VERBATIM
WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}
)

27
examples/provisioning/legacy/custom_config/components/custom_provisioning/proto/README.md
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@ -1,27 +0,0 @@
# Protobuf files for defining custom config-data packet structures
This is an example proto file defining custom configuration related data packet structures, namely -
1. CustomConfigRequest - for sending configuration data consisting of various fields (Info and Version)
2. CustomConfigResponse - for receiving configuration status (fail/success)
Note : These proto files are not automatically compiled during the build process.
# Compilation
Compilation requires protoc (Protobuf Compiler) and protoc-c (Protobuf C Compiler) installed. Since the generated files are to remain the same, as long as the proto files are not modified, therefore the generated files are already available under `examples/provisioning/custom_config/components/custom_provisioning/proto-c` and `examples/provisioning/custom_config/components/custom_provisioning/python` directories, and thus running cmake / make (and installing the Protobuf compilers) is optional.
If using `cmake` follow the below steps. If using `make`, jump to Step 2 directly.
## Step 1 (Only for cmake)
When using cmake, first create a build directory and call cmake from inside:
```
mkdir build
cd build
cmake ..
```
## Step 2
Simply run `make` to generate the respective C and Python files. The newly created files will overwrite those under `examples/provisioning/custom_config/components/custom_provisioning/proto-c` and `examples/provisioning/custom_config/components/custom_provisioning/python`

16
examples/provisioning/legacy/custom_config/components/custom_provisioning/proto/custom_config.proto
View File

@ -1,16 +0,0 @@
syntax = "proto3";
enum CustomConfigStatus {
ConfigSuccess = 0;
ConfigFail = 1;
}
message CustomConfigRequest {
string info = 1;
int32 version = 2;
}
message CustomConfigResponse {
CustomConfigStatus status = 1;
int32 dummy = 2;
}

7
examples/provisioning/legacy/custom_config/components/custom_provisioning/proto/makefile
View File

@ -1,7 +0,0 @@
all: c_proto python_proto
c_proto: *.proto
@protoc-c --c_out=../proto-c/ *.proto
python_proto: *.proto
@protoc --python_out=../python/ *.proto

152
examples/provisioning/legacy/custom_config/components/custom_provisioning/python/custom_config_pb2.py
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@ -1,152 +0,0 @@
# Generated by the protocol buffer compiler. DO NOT EDIT!
# source: custom_config.proto
import sys
_b=sys.version_info[0]<3 and (lambda x:x) or (lambda x:x.encode('latin1'))
from google.protobuf import descriptor as _descriptor
from google.protobuf import message as _message
from google.protobuf import reflection as _reflection
from google.protobuf import symbol_database as _symbol_database
from google.protobuf.internal import enum_type_wrapper
# @@protoc_insertion_point(imports)
_sym_db = _symbol_database.Default()
DESCRIPTOR = _descriptor.FileDescriptor(
name='custom_config.proto',
package='',
syntax='proto3',
serialized_options=None,
serialized_pb=_b('\n\x13\x63ustom_config.proto\"4\n\x13\x43ustomConfigRequest\x12\x0c\n\x04info\x18\x01 \x01(\t\x12\x0f\n\x07version\x18\x02 \x01(\x05\"J\n\x14\x43ustomConfigResponse\x12#\n\x06status\x18\x01 \x01(\x0e\x32\x13.CustomConfigStatus\x12\r\n\x05\x64ummy\x18\x02 \x01(\x05*7\n\x12\x43ustomConfigStatus\x12\x11\n\rConfigSuccess\x10\x00\x12\x0e\n\nConfigFail\x10\x01\x62\x06proto3')
)
_CUSTOMCONFIGSTATUS = _descriptor.EnumDescriptor(
name='CustomConfigStatus',
full_name='CustomConfigStatus',
filename=None,
file=DESCRIPTOR,
values=[
_descriptor.EnumValueDescriptor(
name='ConfigSuccess', index=0, number=0,
serialized_options=None,
type=None),
_descriptor.EnumValueDescriptor(
name='ConfigFail', index=1, number=1,
serialized_options=None,
type=None),
],
containing_type=None,
serialized_options=None,
serialized_start=153,
serialized_end=208,
)
_sym_db.RegisterEnumDescriptor(_CUSTOMCONFIGSTATUS)
CustomConfigStatus = enum_type_wrapper.EnumTypeWrapper(_CUSTOMCONFIGSTATUS)
ConfigSuccess = 0
ConfigFail = 1
_CUSTOMCONFIGREQUEST = _descriptor.Descriptor(
name='CustomConfigRequest',
full_name='CustomConfigRequest',
filename=None,
file=DESCRIPTOR,
containing_type=None,
fields=[
_descriptor.FieldDescriptor(
name='info', full_name='CustomConfigRequest.info', index=0,
number=1, type=9, cpp_type=9, label=1,
has_default_value=False, default_value=_b('').decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR),
_descriptor.FieldDescriptor(
name='version', full_name='CustomConfigRequest.version', index=1,
number=2, type=5, cpp_type=1, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR),
],
extensions=[
],
nested_types=[],
enum_types=[
],
serialized_options=None,
is_extendable=False,
syntax='proto3',
extension_ranges=[],
oneofs=[
],
serialized_start=23,
serialized_end=75,
)
_CUSTOMCONFIGRESPONSE = _descriptor.Descriptor(
name='CustomConfigResponse',
full_name='CustomConfigResponse',
filename=None,
file=DESCRIPTOR,
containing_type=None,
fields=[
_descriptor.FieldDescriptor(
name='status', full_name='CustomConfigResponse.status', index=0,
number=1, type=14, cpp_type=8, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR),
_descriptor.FieldDescriptor(
name='dummy', full_name='CustomConfigResponse.dummy', index=1,
number=2, type=5, cpp_type=1, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR),
],
extensions=[
],
nested_types=[],
enum_types=[
],
serialized_options=None,
is_extendable=False,
syntax='proto3',
extension_ranges=[],
oneofs=[
],
serialized_start=77,
serialized_end=151,
)
_CUSTOMCONFIGRESPONSE.fields_by_name['status'].enum_type = _CUSTOMCONFIGSTATUS
DESCRIPTOR.message_types_by_name['CustomConfigRequest'] = _CUSTOMCONFIGREQUEST
DESCRIPTOR.message_types_by_name['CustomConfigResponse'] = _CUSTOMCONFIGRESPONSE
DESCRIPTOR.enum_types_by_name['CustomConfigStatus'] = _CUSTOMCONFIGSTATUS
_sym_db.RegisterFileDescriptor(DESCRIPTOR)
CustomConfigRequest = _reflection.GeneratedProtocolMessageType('CustomConfigRequest', (_message.Message,), dict(
DESCRIPTOR = _CUSTOMCONFIGREQUEST,
__module__ = 'custom_config_pb2'
# @@protoc_insertion_point(class_scope:CustomConfigRequest)
))
_sym_db.RegisterMessage(CustomConfigRequest)
CustomConfigResponse = _reflection.GeneratedProtocolMessageType('CustomConfigResponse', (_message.Message,), dict(
DESCRIPTOR = _CUSTOMCONFIGRESPONSE,
__module__ = 'custom_config_pb2'
# @@protoc_insertion_point(class_scope:CustomConfigResponse)
))
_sym_db.RegisterMessage(CustomConfigResponse)
# @@protoc_insertion_point(module_scope)

68
examples/provisioning/legacy/custom_config/components/custom_provisioning/src/custom_config.c
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// Copyright 2018 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 <stdio.h>
#include <esp_log.h>
#include <string.h>
#include <esp_err.h>
#include <custom_provisioning/custom_config.h>
#include "custom_config.pb-c.h"
static const char *TAG = "custom_config";
int custom_prov_config_data_handler(uint32_t session_id, const uint8_t *inbuf, ssize_t inlen, uint8_t **outbuf, ssize_t *outlen, void *priv_data)
{
CustomConfigRequest *req;
CustomConfigResponse resp;
custom_prov_config_handler_t app_handler_custom_config = (custom_prov_config_handler_t) priv_data;
req = custom_config_request__unpack(NULL, inlen, inbuf);
if (!req) {
ESP_LOGE(TAG, "Unable to unpack config data");
return ESP_ERR_INVALID_ARG;
}
custom_config_response__init(&resp);
resp.status = CUSTOM_CONFIG_STATUS__ConfigFail;
if (app_handler_custom_config) {
custom_config_t config;
strlcpy(config.info, req->info, sizeof(config.info));
config.version = req->version;
esp_err_t err = app_handler_custom_config(&config);
resp.status = (err == ESP_OK) ? CUSTOM_CONFIG_STATUS__ConfigSuccess :
CUSTOM_CONFIG_STATUS__ConfigFail;
}
custom_config_request__free_unpacked(req, NULL);
resp.dummy = 47; // Set a non zero value of dummy
*outlen = custom_config_response__get_packed_size(&resp);
if (*outlen <= 0) {
ESP_LOGE(TAG, "Invalid encoding for response");
return ESP_FAIL;
}
*outbuf = (uint8_t *) malloc(*outlen);
if (*outbuf == NULL) {
ESP_LOGE(TAG, "System out of memory");
return ESP_ERR_NO_MEM;
}
custom_config_response__pack(&resp, *outbuf);
return ESP_OK;
}

4
examples/provisioning/legacy/custom_config/main/CMakeLists.txt
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@ -1,4 +0,0 @@
idf_component_register(SRCS "app_main.c"
"app_prov.c"
"app_prov_handlers.c"
INCLUDE_DIRS ".")

58
examples/provisioning/legacy/custom_config/main/Kconfig.projbuild
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@ -1,58 +0,0 @@
menu "Example Configuration"
config EXAMPLE_SSID
string "Wi-Fi SSID"
default "myssid"
help
SSID (network name) for the example to connect to.
config EXAMPLE_PASS
string "Wi-Fi Password"
default "mypassword"
help
Wi-Fi password (WPA or WPA2) for the example to use.
config EXAMPLE_USE_SEC_1
bool
default n
prompt "Use Security Version 1"
help
Security version 1 used Curve25519 key exchange for establishing
secure session between device and client during provisioning
config EXAMPLE_USE_POP
bool
depends on EXAMPLE_USE_SEC_1
default n
prompt "Use proof-of-possession"
help
Proof-of-possession can be optionally used to prove that the device is indeed
in possession of the user who is provisioning the device. This proof-of-possession
is internally used to generate the shared secret through key exchange.
config EXAMPLE_POP
string "Proof-of-possession"
default "abcd1234"
depends on EXAMPLE_USE_POP
config EXAMPLE_PROTOCOMM_HTTPD_PORT
int "Protocomm HTTP Port"
default 80
help
Port on which to run Protocomm HTTP based provisioning service
config EXAMPLE_RESET_PROVISIONED
bool
default n
prompt "Reset provisioned status of the device"
help
This erases the NVS to reset provisioned status of the device on every reboot.
Provisioned status is determined by the Wi-Fi STA configuration, saved on the NVS.
config EXAMPLE_AP_RECONN_ATTEMPTS
int "Maximum AP connection attempts"
default 5
help
Set the maximum connection attempts to perform when connecting to a Wi-Fi AP.
endmenu

118
examples/provisioning/legacy/custom_config/main/app_main.c
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@ -1,118 +0,0 @@
/* SoftAP based Custom Provisioning Example
This example code is in the Public Domain (or CC0 licensed, at your option.)
Unless required by applicable law or agreed to in writing, this
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied.
*/
#include <string.h>
#include <freertos/FreeRTOS.h>
#include <freertos/task.h>
#include <esp_system.h>
#include <esp_wifi.h>
#include <esp_event.h>
#include <esp_log.h>
#include <nvs_flash.h>
#include <lwip/err.h>
#include <lwip/sys.h>
#include "app_prov.h"
#define EXAMPLE_AP_RECONN_ATTEMPTS CONFIG_EXAMPLE_AP_RECONN_ATTEMPTS
static const char *TAG = "app";
static void event_handler(void* arg, esp_event_base_t event_base,
int32_t event_id, void* event_data)
{
static int s_retry_num = 0;
if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_START) {
esp_wifi_connect();
} else if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_DISCONNECTED) {
if (s_retry_num < EXAMPLE_AP_RECONN_ATTEMPTS) {
esp_wifi_connect();
s_retry_num++;
ESP_LOGI(TAG, "retry to connect to the AP");
}
ESP_LOGI(TAG,"connect to the AP fail");
} else if (event_base == IP_EVENT && event_id == IP_EVENT_STA_GOT_IP) {
ip_event_got_ip_t* event = (ip_event_got_ip_t*) event_data;
ESP_LOGI(TAG, "got ip: " IPSTR, IP2STR(&event->ip_info.ip));
s_retry_num = 0;
}
}
static void wifi_init_sta(void)
{
/* Set our event handling */
ESP_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT, ESP_EVENT_ANY_ID, event_handler, NULL));
ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, event_handler, NULL));
/* Start Wi-Fi in station mode with credentials set during provisioning */
ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));
ESP_ERROR_CHECK(esp_wifi_start());
}
static void start_softap_provisioning(void)
{
/* Security version */
int security = 0;
/* Proof of possession */
const protocomm_security_pop_t *pop = NULL;
#ifdef CONFIG_EXAMPLE_USE_SEC_1
security = 1;
#endif
/* Having proof of possession is optional */
#ifdef CONFIG_EXAMPLE_USE_POP
const static protocomm_security_pop_t app_pop = {
.data = (uint8_t *) CONFIG_EXAMPLE_POP,
.len = (sizeof(CONFIG_EXAMPLE_POP)-1)
};
pop = &app_pop;
#endif
ESP_ERROR_CHECK(app_prov_start_softap_provisioning(
CONFIG_EXAMPLE_SSID, CONFIG_EXAMPLE_PASS, security, pop));
}
void app_main(void)
{
/* Initialize networking stack */
ESP_ERROR_CHECK(esp_netif_init());
/* Create default event loop needed by the
* main app and the provisioning service */
ESP_ERROR_CHECK(esp_event_loop_create_default());
/* Initialize NVS needed by Wi-Fi */
ESP_ERROR_CHECK(nvs_flash_init());
/* Initialize Wi-Fi including netif with default config */
esp_netif_create_default_wifi_sta();
esp_netif_create_default_wifi_ap();
wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
ESP_ERROR_CHECK(esp_wifi_init(&cfg));
/* Check if device is provisioned */
bool provisioned;
if (app_prov_is_provisioned(&provisioned) != ESP_OK) {
ESP_LOGE(TAG, "Error getting device provisioning state");
return;
}
if (provisioned == false) {
/* If not provisioned, start provisioning via soft AP */
ESP_LOGI(TAG, "Starting WiFi SoftAP provisioning");
start_softap_provisioning();
} else {
/* Start WiFi station with credentials set during provisioning */
ESP_LOGI(TAG, "Starting WiFi station");
wifi_init_sta();
}
}

399
examples/provisioning/legacy/custom_config/main/app_prov.c
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@ -1,399 +0,0 @@
/* SoftAP based Custom Provisioning Example
This example code is in the Public Domain (or CC0 licensed, at your option.)
Unless required by applicable law or agreed to in writing, this
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied.
*/
#include <string.h>
#include <esp_log.h>
#include <esp_err.h>
#include <esp_wifi.h>
#include <nvs_flash.h>
#include <nvs.h>
#include <esp_event.h>
#include <esp_timer.h>
#include <protocomm.h>
#include <protocomm_httpd.h>
#include <protocomm_security0.h>
#include <protocomm_security1.h>
#include <wifi_provisioning/wifi_config.h>
#include <custom_provisioning/custom_config.h>
#include "app_prov.h"
static const char *TAG = "app_prov";
/* Handler for catching WiFi events */
static void app_prov_event_handler(void* handler_arg, esp_event_base_t base, int32_t id, void* data);
/* Handlers for provisioning endpoints */
extern wifi_prov_config_handlers_t wifi_prov_handlers;
extern custom_prov_config_handler_t custom_prov_handler;
/**
* @brief Data relevant to provisioning application
*/
struct app_prov_data {
protocomm_t *pc; /*!< Protocomm handler */
int security; /*!< Type of security to use with protocomm */
const protocomm_security_pop_t *pop; /*!< Pointer to proof of possession */
esp_timer_handle_t timer; /*!< Handle to timer */
/* State of WiFi Station */
wifi_prov_sta_state_t wifi_state;
/* Code for WiFi station disconnection (if disconnected) */
wifi_prov_sta_fail_reason_t wifi_disconnect_reason;
};
/* Pointer to provisioning application data */
static struct app_prov_data *g_prov;
static esp_err_t app_prov_start_service(void)
{
/* Create new protocomm instance */
g_prov->pc = protocomm_new();
if (g_prov->pc == NULL) {
ESP_LOGE(TAG, "Failed to create new protocomm instance");
return ESP_FAIL;
}
/* Config for protocomm_httpd_start() */
protocomm_httpd_config_t pc_config = {
.data = {
.config = PROTOCOMM_HTTPD_DEFAULT_CONFIG()
}
};
/* Start protocomm server on top of HTTP */
if (protocomm_httpd_start(g_prov->pc, &pc_config) != ESP_OK) {
ESP_LOGE(TAG, "Failed to start protocomm HTTP server");
return ESP_FAIL;
}
/* Set protocomm version verification endpoint for protocol */
protocomm_set_version(g_prov->pc, "proto-ver", "V0.1");
/* Set protocomm security type for endpoint */
if (g_prov->security == 0) {
protocomm_set_security(g_prov->pc, "prov-session", &protocomm_security0, NULL);
} else if (g_prov->security == 1) {
protocomm_set_security(g_prov->pc, "prov-session", &protocomm_security1, g_prov->pop);
}
/* Add endpoint for provisioning to set WiFi STA config */
if (protocomm_add_endpoint(g_prov->pc, "prov-config",
wifi_prov_config_data_handler,
(void *) &wifi_prov_handlers) != ESP_OK) {
ESP_LOGE(TAG, "Failed to set WiFi provisioning endpoint");
protocomm_httpd_stop(g_prov->pc);
return ESP_FAIL;
}
/* Add endpoint for provisioning to set custom config */
if (protocomm_add_endpoint(g_prov->pc, "custom-config",
custom_prov_config_data_handler,
(void *) custom_prov_handler) != ESP_OK) {
ESP_LOGE(TAG, "Failed to set custom provisioning endpoint");
protocomm_httpd_stop(g_prov->pc);
return ESP_FAIL;
}
return ESP_OK;
}
static void app_prov_stop_service(void)
{
/* Remove provisioning endpoint for custom config */
protocomm_remove_endpoint(g_prov->pc, "custom-config");
/* Remove provisioning endpoint for WiFi STA config */
protocomm_remove_endpoint(g_prov->pc, "prov-config");
/* Unset provisioning security */
protocomm_unset_security(g_prov->pc, "prov-session");
/* Unset provisioning version endpoint */
protocomm_unset_version(g_prov->pc, "proto-ver");
/* Stop protocomm server */
protocomm_httpd_stop(g_prov->pc);
/* Delete protocomm instance */
protocomm_delete(g_prov->pc);
/* Remove event handler */
esp_event_handler_unregister(WIFI_EVENT, ESP_EVENT_ANY_ID, app_prov_event_handler);
esp_event_handler_unregister(IP_EVENT, IP_EVENT_STA_GOT_IP, app_prov_event_handler);
}
/* Task spawned by timer callback */
static void stop_prov_task(void * arg)
{
ESP_LOGI(TAG, "Stopping provisioning");
app_prov_stop_service();
esp_wifi_set_mode(WIFI_MODE_STA);
/* Timer not needed anymore */
esp_timer_handle_t timer = g_prov->timer;
esp_timer_delete(timer);
g_prov->timer = NULL;
/* Free provisioning process data */
free(g_prov);
g_prov = NULL;
ESP_LOGI(TAG, "Provisioning stopped");
vTaskDelete(NULL);
}
/* Callback to be invoked by timer */
static void _stop_prov_cb(void * arg)
{
xTaskCreate(&stop_prov_task, "stop_prov", 2048, NULL, tskIDLE_PRIORITY, NULL);
}
/* Event handler for starting/stopping provisioning */
static void app_prov_event_handler(void* handler_arg, esp_event_base_t event_base,
int32_t event_id, void* event_data)
{
/* If pointer to provisioning application data is NULL
* then provisioning is not running */
if (!g_prov) {
return;
}
if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_START) {
ESP_LOGI(TAG, "STA Start");
/* Once configuration is received through protocomm,
* device is started as station. Once station starts,
* wait for connection to establish with configured
* host SSID and password */
g_prov->wifi_state = WIFI_PROV_STA_CONNECTING;
} else if (event_base == IP_EVENT && event_id == IP_EVENT_STA_GOT_IP) {
ESP_LOGI(TAG, "STA Got IP");
/* Station got IP. That means configuration is successful.
* Schedule timer to stop provisioning app after 30 seconds. */
g_prov->wifi_state = WIFI_PROV_STA_CONNECTED;
if (g_prov && g_prov->timer) {
/* Note that, after restarting the WiFi in Station + AP mode, the
* user gets disconnected from the AP for a while. But at the same
* time, the user app requests for status update from the device
* to verify that the provisioning was successful. Therefore, the
* turning off of the AP must be delayed long enough for the user
* to reconnect and get STA connection status from the device.
* Otherwise, the AP will be turned off before the user can
* reconnect and thus the user app will see connection timed out,
* signaling a failure in provisioning. */
esp_timer_start_once(g_prov->timer, 30000*1000U);
}
} else if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_DISCONNECTED) {
ESP_LOGE(TAG, "STA Disconnected");
/* Station couldn't connect to configured host SSID */
g_prov->wifi_state = WIFI_PROV_STA_DISCONNECTED;
wifi_event_sta_disconnected_t* disconnected = (wifi_event_sta_disconnected_t*) event_data;
ESP_LOGE(TAG, "Disconnect reason : %d", disconnected->reason);
/* Set code corresponding to the reason for disconnection */
switch (disconnected->reason) {
case WIFI_REASON_AUTH_EXPIRE:
case WIFI_REASON_4WAY_HANDSHAKE_TIMEOUT:
case WIFI_REASON_BEACON_TIMEOUT:
case WIFI_REASON_AUTH_FAIL:
case WIFI_REASON_ASSOC_FAIL:
case WIFI_REASON_HANDSHAKE_TIMEOUT:
ESP_LOGI(TAG, "STA Auth Error");
g_prov->wifi_disconnect_reason = WIFI_PROV_STA_AUTH_ERROR;
break;
case WIFI_REASON_NO_AP_FOUND:
ESP_LOGI(TAG, "STA AP Not found");
g_prov->wifi_disconnect_reason = WIFI_PROV_STA_AP_NOT_FOUND;
break;
default:
/* If none of the expected reasons,
* retry connecting to host SSID */
g_prov->wifi_state = WIFI_PROV_STA_CONNECTING;
}
esp_wifi_connect();
}
}
esp_err_t app_prov_get_wifi_state(wifi_prov_sta_state_t* state)
{
if (g_prov == NULL || state == NULL) {
return ESP_FAIL;
}
*state = g_prov->wifi_state;
return ESP_OK;
}
esp_err_t app_prov_get_wifi_disconnect_reason(wifi_prov_sta_fail_reason_t* reason)
{
if (g_prov == NULL || reason == NULL) {
return ESP_FAIL;
}
if (g_prov->wifi_state != WIFI_PROV_STA_DISCONNECTED) {
return ESP_FAIL;
}
*reason = g_prov->wifi_disconnect_reason;
return ESP_OK;
}
esp_err_t app_prov_is_provisioned(bool *provisioned)
{
*provisioned = false;
#ifdef CONFIG_EXAMPLE_RESET_PROVISIONED
esp_wifi_restore();
return ESP_OK;
#endif
/* Get WiFi Station configuration */
wifi_config_t wifi_cfg;
if (esp_wifi_get_config(WIFI_IF_STA, &wifi_cfg) != ESP_OK) {
return ESP_FAIL;
}
if (strlen((const char*) wifi_cfg.sta.ssid)) {
*provisioned = true;
ESP_LOGI(TAG, "Found ssid %s", (const char*) wifi_cfg.sta.ssid);
ESP_LOGI(TAG, "Found password %s", (const char*) wifi_cfg.sta.password);
}
return ESP_OK;
}
esp_err_t app_prov_configure_sta(wifi_config_t *wifi_cfg)
{
/* Configure WiFi as both AP and Station */
if (esp_wifi_set_mode(WIFI_MODE_APSTA) != ESP_OK) {
ESP_LOGE(TAG, "Failed to set WiFi mode");
return ESP_FAIL;
}
/* Configure WiFi station with host credentials
* provided during provisioning */
if (esp_wifi_set_config(WIFI_IF_STA, wifi_cfg) != ESP_OK) {
ESP_LOGE(TAG, "Failed to set WiFi configuration");
return ESP_FAIL;
}
/* Restart WiFi */
if (esp_wifi_start() != ESP_OK) {
ESP_LOGE(TAG, "Failed to restart WiFi");
return ESP_FAIL;
}
/* Connect to AP */
if (esp_wifi_connect() != ESP_OK) {
ESP_LOGE(TAG, "Failed to connect WiFi");
return ESP_FAIL;
}
if (g_prov) {
/* Reset wifi station state for provisioning app */
g_prov->wifi_state = WIFI_PROV_STA_CONNECTING;
}
return ESP_OK;
}
static esp_err_t start_wifi_ap(const char *ssid, const char *pass)
{
/* Build WiFi configuration for AP mode */
wifi_config_t wifi_config = {
.ap = {
.max_connection = 5,
},
};
strlcpy((char *) wifi_config.ap.ssid, ssid, sizeof(wifi_config.ap.ssid));
if (strlen(pass) == 0) {
memset(wifi_config.ap.password, 0, sizeof(wifi_config.ap.password));
wifi_config.ap.authmode = WIFI_AUTH_OPEN;
} else {
strlcpy((char *) wifi_config.ap.password, pass, sizeof(wifi_config.ap.password));
wifi_config.ap.authmode = WIFI_AUTH_WPA_WPA2_PSK;
}
/* Start WiFi in AP mode with configuration built above */
esp_err_t err = esp_wifi_set_mode(WIFI_MODE_AP);
if (err != ESP_OK) {
ESP_LOGE(TAG, "Failed to set WiFi mode : %d", err);
return err;
}
err = esp_wifi_set_config(WIFI_IF_AP, &wifi_config);
if (err != ESP_OK) {
ESP_LOGE(TAG, "Failed to set WiFi config : %d", err);
return err;
}
err = esp_wifi_start();
if (err != ESP_OK) {
ESP_LOGE(TAG, "Failed to start WiFi : %d", err);
return err;
}
return ESP_OK;
}
esp_err_t app_prov_start_softap_provisioning(const char *ssid, const char *pass,
int security, const protocomm_security_pop_t *pop)
{
/* If provisioning app data present,
* means provisioning app is already running */
if (g_prov) {
ESP_LOGI(TAG, "Invalid provisioning state");
return ESP_FAIL;
}
/* Allocate memory for provisioning app data */
g_prov = (struct app_prov_data *) calloc(1, sizeof(struct app_prov_data));
if (!g_prov) {
ESP_LOGI(TAG, "Unable to allocate prov data");
return ESP_ERR_NO_MEM;
}
/* Initialize app data */
g_prov->pop = pop;
g_prov->security = security;
/* Create timer object as a member of app data */
esp_timer_create_args_t timer_conf = {
.callback = _stop_prov_cb,
.arg = NULL,
.dispatch_method = ESP_TIMER_TASK,
.name = "stop_softap_tm"
};
esp_err_t err = esp_timer_create(&timer_conf, &g_prov->timer);
if (err != ESP_OK) {
ESP_LOGE(TAG, "Failed to create timer");
return err;
}
err = esp_event_handler_register(WIFI_EVENT, ESP_EVENT_ANY_ID, app_prov_event_handler, NULL);
if (err != ESP_OK) {
ESP_LOGE(TAG, "Failed to register WiFi event handler");
return err;
}
err = esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, app_prov_event_handler, NULL);
if (err != ESP_OK) {
ESP_LOGE(TAG, "Failed to register IP event handler");
return err;
}
/* Start WiFi softAP with specified ssid and password */
err = start_wifi_ap(ssid, pass);
if (err != ESP_OK) {
ESP_LOGE(TAG, "Failed to start WiFi AP");
return err;
}
/* Start provisioning service through HTTP */
err = app_prov_start_service();
if (err != ESP_OK) {
ESP_LOGE(TAG, "Failed to start provisioning app");
return err;
}
ESP_LOGI(TAG, "SoftAP Provisioning started with SSID %s, Password %s", ssid, pass);
return ESP_OK;
}

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/* SoftAP based Custom Provisioning Example
This example code is in the Public Domain (or CC0 licensed, at your option.)
Unless required by applicable law or agreed to in writing, this
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied.
*/
#pragma once
#include <esp_event.h>
#include <protocomm_security.h>
#include <wifi_provisioning/wifi_config.h>
#include <custom_provisioning/custom_config.h>
/**
* @brief Get state of WiFi Station during provisioning
*
* @note WiFi is initially configured as AP, when
* provisioning starts. After provisioning data
* is provided by user, the WiFi is reconfigured
* to run as both AP and Station.
*
* @param[out] state Pointer to wifi_prov_sta_state_t variable to be filled
*
* @return
* - ESP_OK : Successfully retrieved wifi state
* - ESP_FAIL : Provisioning app not running
*/
esp_err_t app_prov_get_wifi_state(wifi_prov_sta_state_t* state);
/**
* @brief Get reason code in case of WiFi station
* disconnection during provisioning
*
* @param[out] reason Pointer to wifi_prov_sta_fail_reason_t variable to be filled
*
* @return
* - ESP_OK : Successfully retrieved wifi disconnect reason
* - ESP_FAIL : Provisioning app not running
*/
esp_err_t app_prov_get_wifi_disconnect_reason(wifi_prov_sta_fail_reason_t* reason);
/**
* @brief Checks if device is provisioned
* *
* @param[out] provisioned True if provisioned, else false
*
* @return
* - ESP_OK : Retrieved provision state successfully
* - ESP_FAIL : Failed to retrieve provision state
*/
esp_err_t app_prov_is_provisioned(bool *provisioned);
/**
* @brief Runs WiFi as both AP and Station
*
* Configures the WiFi station mode to connect to the
* SSID and password specified in config structure,
* and restarts WiFi to run as both AP and station
*
* @param[in] wifi_cfg Pointer to WiFi cofiguration structure
*
* @return
* - ESP_OK : WiFi configured and restarted successfully
* - ESP_FAIL : Failed to set configuration
*/
esp_err_t app_prov_configure_sta(wifi_config_t *wifi_cfg);
/**
* @brief Start provisioning via softAP
*
* Starts the WiFi softAP with specified ssid and pass, provisioning
* security mode and proof of possession (if any).
*
* @param[in] ssid SSID for SoftAP
* @param[in] pass Password for SoftAP
* @param[in] security Security mode
* @param[in] pop Pointer to proof of possession (NULL if not present)
*
* @return
* - ESP_OK : Provisioning started successfully
* - ESP_FAIL : Failed to start
*/
esp_err_t app_prov_start_softap_provisioning(const char *ssid, const char *pass,
int security, const protocomm_security_pop_t *pop);

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/* SoftAP based Custom Provisioning Example
This example code is in the Public Domain (or CC0 licensed, at your option.)
Unless required by applicable law or agreed to in writing, this
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied.
*/
/* This file is mostly a boiler-plate code that applications can use without much change */
#include <stdio.h>
#include <string.h>
#include <esp_err.h>
#include <esp_log.h>
#include <esp_wifi.h>
#include <esp_netif.h>
#include <wifi_provisioning/wifi_config.h>
#include <custom_provisioning/custom_config.h>
#include "app_prov.h"
static const char* TAG = "app_prov_handler";
/* Provide definition of wifi_prov_ctx_t */
struct wifi_prov_ctx {
wifi_config_t wifi_cfg;
};
static wifi_config_t *get_config(wifi_prov_ctx_t **ctx)
{
return (*ctx ? &(*ctx)->wifi_cfg : NULL);
}
static wifi_config_t *new_config(wifi_prov_ctx_t **ctx)
{
free(*ctx);
(*ctx) = (wifi_prov_ctx_t *) calloc(1, sizeof(wifi_prov_ctx_t));
return get_config(ctx);
}
static void free_config(wifi_prov_ctx_t **ctx)
{
free(*ctx);
*ctx = NULL;
}
/****************** Handler for Custom Configuration *******************/
static esp_err_t custom_config_handler(const custom_config_t *config)
{
ESP_LOGI(TAG, "Custom config received :\n\tInfo : %s\n\tVersion : %d",
config->info, config->version);
return ESP_OK;
}
custom_prov_config_handler_t custom_prov_handler = custom_config_handler;
/****************** Handlers for Wi-Fi Configuration *******************/
static esp_err_t get_status_handler(wifi_prov_config_get_data_t *resp_data, wifi_prov_ctx_t **ctx)
{
/* Initialize to zero */
memset(resp_data, 0, sizeof(wifi_prov_config_get_data_t));
if (app_prov_get_wifi_state(&resp_data->wifi_state) != ESP_OK) {
ESP_LOGW(TAG, "Prov app not running");
return ESP_FAIL;
}
if (resp_data->wifi_state == WIFI_PROV_STA_CONNECTED) {
ESP_LOGI(TAG, "Connected state");
/* IP Addr assigned to STA */
esp_netif_ip_info_t ip_info;
esp_netif_get_ip_info(esp_netif_get_handle_from_ifkey("WIFI_STA_DEF"), &ip_info);
esp_ip4addr_ntoa(&ip_info.ip, resp_data->conn_info.ip_addr, sizeof(resp_data->conn_info.ip_addr));
/* AP information to which STA is connected */
wifi_ap_record_t ap_info;
esp_wifi_sta_get_ap_info(&ap_info);
memcpy(resp_data->conn_info.bssid, (char *)ap_info.bssid, sizeof(ap_info.bssid));
memcpy(resp_data->conn_info.ssid, (char *)ap_info.ssid, sizeof(ap_info.ssid));
resp_data->conn_info.channel = ap_info.primary;
resp_data->conn_info.auth_mode = ap_info.authmode;
} else if (resp_data->wifi_state == WIFI_PROV_STA_DISCONNECTED) {
ESP_LOGI(TAG, "Disconnected state");
/* If disconnected, convey reason */
app_prov_get_wifi_disconnect_reason(&resp_data->fail_reason);
} else {
ESP_LOGI(TAG, "Connecting state");
}
return ESP_OK;
}
static esp_err_t set_config_handler(const wifi_prov_config_set_data_t *req_data, wifi_prov_ctx_t **ctx)
{
wifi_config_t *wifi_cfg = get_config(ctx);
if (wifi_cfg) {
free_config(ctx);
}
wifi_cfg = new_config(ctx);
if (!wifi_cfg) {
ESP_LOGE(TAG, "Unable to alloc wifi config");
return ESP_FAIL;
}
ESP_LOGI(TAG, "WiFi Credentials Received : \n\tssid %s \n\tpassword %s",
req_data->ssid, req_data->password);
/* Using memcpy allows the max SSID length to be 32 bytes (as per 802.11 standard).
* But this doesn't guarantee that the saved SSID will be null terminated, because
* wifi_cfg->sta.ssid is also 32 bytes long (without extra 1 byte for null character).
* Although, this is not a matter for concern because esp_wifi library reads the SSID
* upto 32 bytes in absence of null termination */
const size_t ssid_len = strnlen(req_data->ssid, sizeof(wifi_cfg->sta.ssid));
/* Ensure SSID less than 32 bytes is null terminated */
memset(wifi_cfg->sta.ssid, 0, sizeof(wifi_cfg->sta.ssid));
memcpy(wifi_cfg->sta.ssid, req_data->ssid, ssid_len);
strlcpy((char *) wifi_cfg->sta.password, req_data->password, sizeof(wifi_cfg->sta.password));
return ESP_OK;
}
static esp_err_t apply_config_handler(wifi_prov_ctx_t **ctx)
{
wifi_config_t *wifi_cfg = get_config(ctx);
if (!wifi_cfg) {
ESP_LOGE(TAG, "WiFi config not set");
return ESP_FAIL;
}
app_prov_configure_sta(wifi_cfg);
ESP_LOGI(TAG, "WiFi Credentials Applied");
free_config(ctx);
return ESP_OK;
}
wifi_prov_config_handlers_t wifi_prov_handlers = {
.get_status_handler = get_status_handler,
.set_config_handler = set_config_handler,
.apply_config_handler = apply_config_handler,
.ctx = NULL
};

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# The following lines of boilerplate have to be in your project's CMakeLists
# in this exact order for cmake to work correctly
cmake_minimum_required(VERSION 3.5)
set(EXTRA_COMPONENT_DIRS $ENV{IDF_PATH}/examples/common_components/qrcode)
include($ENV{IDF_PATH}/tools/cmake/project.cmake)
project(softap_prov)

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# SoftAP + HTTPD based Provisioning Example (Legacy)
> Note: It is recommended to use the new `wifi_prov_mgr` example which is based on the simpler `wifi_provisioning` APIs. Check this example only if you wish to use lower level provisioning and protocomm APIs and want more control over the handlers.
(See the README.md file in the upper level 'examples' directory for more information about examples.)
`softap_prov` example demonstrates the implementation and integration of various IDF components for building a provisioning application.
For this example Wi-Fi SoftAP is chosen as the mode of transport, over which the provisioning related communication is to take place, between the device (to be provisioned) and the client (owner of the device). The provisioning service is hosted by an HTTP server which accepts requests to specific URIs corresponding to the available provisioning endpoints (eg. for session establishment, for Wi-Fi credentials configuration, etc.).
In the provisioning process the device is configured as a Wi-Fi station with specified credentials. Once configured, the device will retain the Wi-Fi configuration, until a flash erase is performed.
Right after provisioning is complete, Wi-Fi SoftAP and the HTTP server are deactivated. Though, that is specific to this example, and the user can choose to keep SoftAP / HTTP server active in their own application.
`softap_prov` uses the following components :
* `wifi_provisioning` : provides data structures and protocomm endpoint handlers for Wi-Fi configuration
* `protocomm` : for protocol based communication and secure session establishment
* `protobuf` : Google's protocol buffer library for serialization of protocomm data structures
This example can be used, as it is, for adding a provisioning service to any application intended for IoT.
## How to use example
### Hardware Required
Example should be able to run on any commonly available ESP32 development board.
### Application Required
Provisioning applications are available for various platforms. See below
#### Platform : Android
For Android, a provisioning application along with source code is available on GitHub : [esp-idf-provisioning-android](https://github.com/espressif/esp-idf-provisioning-android)
#### Platform : iOS
For iOS, a provisioning application along with source code is available on GitHub : [esp-idf-provisioning-ios](https://github.com/espressif/esp-idf-provisioning-ios)
#### Platform : Linux / Windows / macOS
To provision the device running this example, the `esp_prov.py` script needs to be run (found under `$IDF_PATH/tools/esp_prov`). This feature of `esp_prov` should work on all platforms, given the dependencies are satisfied.
### Configure the project
```
idf.py menuconfig
```
* Under Example Configuration set the following :
* SoftAP SSID (Defaults to PROV_<MACID>)
* SoftAP Password (Defaults to PROV_PASS)
* Security Version (default 1)
* Proof of Possession (default "abcd1234")
### Build and Flash
Build the project and flash it to the board, then run monitor tool to view serial output:
```
idf.py -p PORT flash monitor
```
(To exit the serial monitor, type ``Ctrl-]``.)
See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.
## Example Output
```
I (1562) app: SoftAP started
I (1572) app_prov: SoftAP Provisioning started with SSID 'PROV_261FCC', Password 'PROV_PASS'
```
Make sure to connect the client computer to the SoftAP network, whose SSID and Password are displayed in the serial monitor log. On successful connection the monitor log will show :
```
I (519482) tcpip_adapter: softAP assign IP to station,IP is: 192.168.4.2
```
In a separate terminal run the `esp_prov.py` script under `$IDP_PATH/tools/esp_prov` directory (please replace `myssid` and `mypassword` with the credentials of the AP to which the device is supposed to connect to after provisioning). The SoftAP endpoint corresponds to the IP and port of the device on the SoftAP network, but this is usually same as the default value and may be left out. Assuming default example configuration, the script should be run as follows :
```
python esp_prov.py --transport softap --service_name "192.168.4.1:80" --sec_ver 1 --pop abcd1234 --ssid myssid --passphrase mypassword
```
Above command will perform the provisioning steps, and the monitor log should display something like this :
```
I (634572) app_prov_handler: WiFi Credentials Received :
ssid : myssid
password : mypassword
.
.
.
I (634652) app_prov_handler: WiFi Credentials Applied
I (634652) app_prov: STA Start
.
.
.
I (688270) app_prov_handler: Connecting state
.
.
.
I (637732) app_prov: STA Got IP
I (637732) app: got ip:192.168.43.220
.
.
.
I (654562) app_prov_handler: Connected state
```
After sometime the provisioning app will exit, SoftAP will be turned off and HTTP server will be stopped
```
I (667732) app_prov: Stopping provisioning
I (668732) app_prov: Provisioning stopped
I (668742) app: SoftAP stopped
```
## QR Code Scanning
Enabling `CONFIG_EXAMPLE_PROV_SHOW_QR` will display a QR code on the serial terminal, which can be scanned from the ESP Provisioning phone apps to start the Wi-Fi provisioning process.
The monitor log should display something like this :
```
I (1640) app_prov: SoftAP Provisioning started with SSID 'PROV_EA69FC', Password 'PROV_PASS'
I (1640) app: Scan this QR code from the provisioning application for Provisioning.
I (1650) QRCODE: Encoding below text with ECC LVL 0 & QR Code Version 10
I (1660) QRCODE: {"ver":"v1","name":"PROV_EA69FC","pop":"abcd1234","transport":"softap"}
█▀▀▀▀▀█ ▄▀ ▄█ ▄█▄▄█▀▄ ██ █▀▀▀▀▀█
█ ███ █ ▀███▀ ██▀▀█ ▀█▀ █ ███ █
█ ▀▀▀ █ █▄ ▄ ▀███ ▄▄█▀ ▄ █ ▀▀▀ █
▀▀▀▀▀▀▀ █▄▀ █ ▀ ▀▄█▄▀▄▀▄█ ▀▀▀▀▀▀▀
▀▀▄▀▄▄▀█ █▄ ▀▄▀█▄█ ▄▄ ██▄█▀▀▄▀▀▄
███ █▀▀ ▄▀▀ ▄█▄ ▀▀█▄█▀▄▄ ▄█ █
▄▀▀ ▀▀▀█▀▄▄▄█▀▀ ██▄█▄▄█▄▀█ ▄▄ ▀█
▄█▄█ ▀▀▄█ ██ ▄█ ██▀█▀ ▄█ █▄
▄█▀█▀ █▄▀▀▄ █▀█▀██ ▄█▀ ▀▀▄ ▀
█▄▄█▄▀█▄▄▀▄▄▀█ ▀▄ ▄▀██ ▄ █▄▄▄ ▀█
▀▄▀▄▀▀▀█ ▄ ▄▀▀▀█▄▀▀▀▀▀▄█ ▄▄ █ ▄▄
▀█▄▀██▀▄▄ ▄▄▀▄ ▄▀▀▀▀█▄▀▄▀█ ▄▄ ▀▀
▀ ▀ ▀ ▀▀█▄▀ ▀▀ ▀▀▀▄▀██ █▀▀▀█▀ ▄▄
█▀▀▀▀▀█ ▀▀██▀█▀ ▀█ ▄ █▀▀█ ▀ ██ ▀▄
█ ███ █ ▄█▀▄▄▄ █▀▀▀ ██ ▀████▀ ▄█
█ ▀▀▀ █ ▄▀▄▄ ▄▀█▀▄▄▄█ ▀ ▄▀█▀▀▀
▀▀▀▀▀▀▀ ▀ ▀▀▀▀ ▀ ▀ ▀ ▀ ▀▀ ▀
I (1870) app: If QR code is not visible, copy paste the below URL in a browser.
https://espressif.github.io/esp-jumpstart/qrcode.html?data={"ver":"v1","name":"PROV_EA69FC","pop":"abcd1234","transport":"softap"}
```
## Troubleshooting
### Provisioning failed
It is possible that the Wi-Fi credentials provided were incorrect, or the device was not able to establish connection to the network, in which the the `esp_prov` script will notify failure (with reason) and the provisioning app will continue running, allowing the user to retry the process. Serial monitor log will display the failure along with disconnect reason :
```
E (39291) app_prov: STA Disconnected
E (39291) app_prov: Disconnect reason : 201
I (39291) app_prov: STA AP Not found
I (42021) app_prov_handler: Disconnected state
```
### Provisioning does not start
If the serial monitor log is different, as shown below :
```
I (539) app_prov: Found ssid myssid
I (539) app_prov: Found password mypassword
I (549) app: Starting WiFi station
```
It means the Wi-Fi credentials were already set by some other application flashed previously to your device. To erase these credentials either do full erase and then flash the example
```
make erase_flash
idf.py -p PORT flash monitor
```
Or, enable `Reset Provisioning` option under `Example Configuration` under menuconfig. But this will erase the saved Wi-Fi credentials every time the device boots, so this is not the preferred solution.

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idf_component_register(SRCS "app_main.c"
"app_prov.c"
"app_prov_handlers.c"
INCLUDE_DIRS ".")

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menu "Example Configuration"
config EXAMPLE_SSID_SET_MAC
bool "Use MAC as SSID"
default y
help
Set SoftAP SSID as PROV_<MAC>.
config EXAMPLE_SSID
string "Wi-Fi SSID"
default "PROV_SSID"
depends on !EXAMPLE_SSID_SET_MAC
help
SSID (network name) for the example to connect to.
config EXAMPLE_PASS
string "Wi-Fi Password"
default "PROV_PASS"
help
Wi-Fi password (WPA or WPA2) for the example to use.
config EXAMPLE_USE_SEC_1
bool
default y
prompt "Use Security Version 1"
help
Security version 1 used Curve25519 key exchange for establishing
secure session between device and client during provisioning
config EXAMPLE_USE_POP
bool
depends on EXAMPLE_USE_SEC_1
default y
prompt "Use proof-of-possession"
help
Proof-of-possession can be optionally used to prove that the device is indeed
in possession of the user who is provisioning the device. This proof-of-possession
is internally used to generate the shared secret through key exchange.
config EXAMPLE_POP
string "Proof-of-possession"
default "abcd1234"
depends on EXAMPLE_USE_POP
config EXAMPLE_RESET_PROVISIONED
bool
default n
prompt "Reset provisioned status of the device"
help
This erases the NVS to reset provisioned status of the device on every reboot.
Provisioned status is determined by the Wi-Fi STA configuration, saved on the NVS.
config EXAMPLE_AP_RECONN_ATTEMPTS
int "Maximum AP connection attempts"
default 5
help
Set the maximum connection attempts to perform when connecting to a Wi-Fi AP.
config EXAMPLE_PROV_SHOW_QR
bool "Show provisioning QR code"
default y
help
Show the QR code for provisioning.
endmenu

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/* SoftAP based Provisioning Example
This example code is in the Public Domain (or CC0 licensed, at your option.)
Unless required by applicable law or agreed to in writing, this
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied.
*/
#include <string.h>
#include <freertos/FreeRTOS.h>
#include <freertos/task.h>
#include <esp_system.h>
#include <esp_wifi.h>
#include <esp_event.h>
#include <esp_log.h>
#include <nvs_flash.h>
#include <lwip/err.h>
#include <lwip/sys.h>
#include "app_prov.h"
#include "qrcode.h"
#define EXAMPLE_AP_RECONN_ATTEMPTS CONFIG_EXAMPLE_AP_RECONN_ATTEMPTS
#define PROV_QR_VERSION "v1"
#define PROV_TRANSPORT_SOFTAP "softap"
#define QRCODE_BASE_URL "https://espressif.github.io/esp-jumpstart/qrcode.html"
static const char *TAG = "app";
static void event_handler(void* arg, esp_event_base_t event_base,
int32_t event_id, void* event_data)
{
static int s_retry_num = 0;
if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_START) {
esp_wifi_connect();
} else if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_DISCONNECTED) {
if (s_retry_num < EXAMPLE_AP_RECONN_ATTEMPTS) {
esp_wifi_connect();
s_retry_num++;
ESP_LOGI(TAG, "retry to connect to the AP");
}
ESP_LOGI(TAG,"connect to the AP fail");
} else if (event_base == IP_EVENT && event_id == IP_EVENT_STA_GOT_IP) {
ip_event_got_ip_t* event = (ip_event_got_ip_t*) event_data;
ESP_LOGI(TAG, "got ip:" IPSTR, IP2STR(&event->ip_info.ip));
s_retry_num = 0;
}
}
static void wifi_init_sta(void)
{
/* Set our event handling */
ESP_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT, ESP_EVENT_ANY_ID, event_handler, NULL));
ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, event_handler, NULL));
/* Start Wi-Fi in station mode with credentials set during provisioning */
ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));
ESP_ERROR_CHECK(esp_wifi_start());
}
static void start_softap_provisioning(void)
{
/* Security version */
int security = 0;
/* Proof of possession */
const protocomm_security_pop_t *pop = NULL;
#ifdef CONFIG_EXAMPLE_USE_SEC_1
security = 1;
#endif
/* Having proof of possession is optional */
#ifdef CONFIG_EXAMPLE_USE_POP
const static protocomm_security_pop_t app_pop = {
.data = (uint8_t *) CONFIG_EXAMPLE_POP,
.len = (sizeof(CONFIG_EXAMPLE_POP)-1)
};
pop = &app_pop;
#endif
const char *ssid = NULL;
#ifdef CONFIG_EXAMPLE_SSID
ssid = CONFIG_EXAMPLE_SSID;
#else
uint8_t eth_mac[6];
esp_wifi_get_mac(WIFI_IF_STA, eth_mac);
char ssid_with_mac[33];
snprintf(ssid_with_mac, sizeof(ssid_with_mac), "PROV_%02X%02X%02X",
eth_mac[3], eth_mac[4], eth_mac[5]);
ssid = ssid_with_mac;
#endif
ESP_ERROR_CHECK(app_prov_start_softap_provisioning(
ssid, CONFIG_EXAMPLE_PASS, security, pop));
}
static void get_device_service_name(char *service_name, size_t max)
{
uint8_t eth_mac[6];
const char *ssid_prefix = "PROV_";
esp_wifi_get_mac(WIFI_IF_STA, eth_mac);
snprintf(service_name, max, "%s%02X%02X%02X",
ssid_prefix, eth_mac[3], eth_mac[4], eth_mac[5]);
}
static void softap_prov_print_qr(void)
{
char payload[150] = {0};
char name[12] = {0};
char *pop = NULL;
#ifdef CONFIG_EXAMPLE_USE_POP
pop = CONFIG_EXAMPLE_POP;
#endif
get_device_service_name(name, sizeof(name));
if (pop) {
snprintf(payload, sizeof(payload), "{\"ver\":\"%s\",\"name\":\"%s\"" \
",\"pop\":\"%s\",\"transport\":\"%s\"}",
PROV_QR_VERSION, name, pop, PROV_TRANSPORT_SOFTAP);
} else {
snprintf(payload, sizeof(payload), "{\"ver\":\"%s\",\"name\":\"%s\"" \
",\"transport\":\"%s\"}",
PROV_QR_VERSION, name, PROV_TRANSPORT_SOFTAP);
}
#ifdef CONFIG_EXAMPLE_PROV_SHOW_QR
ESP_LOGI(TAG, "Scan this QR code from the provisioning application for Provisioning.");
esp_qrcode_config_t cfg = ESP_QRCODE_CONFIG_DEFAULT();
esp_qrcode_generate(&cfg, payload);
#endif /* CONFIG_APP_WIFI_PROV_SHOW_QR */
ESP_LOGI(TAG, "If QR code is not visible, copy paste the below URL in a browser.\n%s?data=%s", QRCODE_BASE_URL, payload);
}
void app_main(void)
{
/* Initialize networking stack */
ESP_ERROR_CHECK(esp_netif_init());
/* Create default event loop needed by the
* main app and the provisioning service */
ESP_ERROR_CHECK(esp_event_loop_create_default());
/* Initialize NVS needed by Wi-Fi */
ESP_ERROR_CHECK(nvs_flash_init());
/* Initialize Wi-Fi including netif with default config */
esp_netif_create_default_wifi_sta();
esp_netif_create_default_wifi_ap();
wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
ESP_ERROR_CHECK(esp_wifi_init(&cfg));
/* Check if device is provisioned */
bool provisioned;
if (app_prov_is_provisioned(&provisioned) != ESP_OK) {
ESP_LOGE(TAG, "Error getting device provisioning state");
return;
}
if (provisioned == false) {
/* If not provisioned, start provisioning via soft AP */
ESP_LOGI(TAG, "Starting WiFi SoftAP provisioning");
start_softap_provisioning();
softap_prov_print_qr();
} else {
/* Start WiFi station with credentials set during provisioning */
ESP_LOGI(TAG, "Starting WiFi station");
wifi_init_sta();
}
}

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/* SoftAP based Provisioning Example
This example code is in the Public Domain (or CC0 licensed, at your option.)
Unless required by applicable law or agreed to in writing, this
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied.
*/
#include <string.h>
#include <esp_log.h>
#include <esp_err.h>
#include <esp_wifi.h>
#include <nvs_flash.h>
#include <nvs.h>
#include <esp_event.h>
#include <esp_timer.h>
#include <protocomm.h>
#include <protocomm_httpd.h>
#include <protocomm_security0.h>
#include <protocomm_security1.h>
#include <wifi_provisioning/wifi_config.h>
#include "app_prov.h"
static const char *TAG = "app_prov";
/* Handler for catching WiFi events */
static void app_prov_event_handler(void* handler_arg, esp_event_base_t base, int32_t id, void* data);
/* Handlers for wifi_config provisioning endpoint */
extern wifi_prov_config_handlers_t wifi_prov_handlers;
/**
* @brief Data relevant to provisioning application
*/
struct app_prov_data {
protocomm_t *pc; /*!< Protocomm handler */
int security; /*!< Type of security to use with protocomm */
const protocomm_security_pop_t *pop; /*!< Pointer to proof of possession */
esp_timer_handle_t timer; /*!< Handle to timer */
/* State of WiFi Station */
wifi_prov_sta_state_t wifi_state;
/* Code for WiFi station disconnection (if disconnected) */
wifi_prov_sta_fail_reason_t wifi_disconnect_reason;
};
/* Pointer to provisioning application data */
static struct app_prov_data *g_prov;
static esp_err_t app_prov_start_service(void)
{
/* Create new protocomm instance */
g_prov->pc = protocomm_new();
if (g_prov->pc == NULL) {
ESP_LOGE(TAG, "Failed to create new protocomm instance");
return ESP_FAIL;
}
/* Config for protocomm_httpd_start() */
protocomm_httpd_config_t pc_config = {
.data = {
.config = PROTOCOMM_HTTPD_DEFAULT_CONFIG()
}
};
/* Start protocomm server on top of HTTP */
if (protocomm_httpd_start(g_prov->pc, &pc_config) != ESP_OK) {
ESP_LOGE(TAG, "Failed to start protocomm HTTP server");
return ESP_FAIL;
}
/* Set protocomm version verification endpoint for protocol */
protocomm_set_version(g_prov->pc, "proto-ver", "V0.1");
/* Set protocomm security type for endpoint */
if (g_prov->security == 0) {
protocomm_set_security(g_prov->pc, "prov-session", &protocomm_security0, NULL);
} else if (g_prov->security == 1) {
protocomm_set_security(g_prov->pc, "prov-session", &protocomm_security1, g_prov->pop);
}
/* Add endpoint for provisioning to set wifi station config */
if (protocomm_add_endpoint(g_prov->pc, "prov-config",
wifi_prov_config_data_handler,
(void *) &wifi_prov_handlers) != ESP_OK) {
ESP_LOGE(TAG, "Failed to set provisioning endpoint");
protocomm_httpd_stop(g_prov->pc);
return ESP_FAIL;
}
return ESP_OK;
}
static void app_prov_stop_service(void)
{
/* Remove provisioning endpoint */
protocomm_remove_endpoint(g_prov->pc, "prov-config");
/* Unset provisioning security */
protocomm_unset_security(g_prov->pc, "prov-session");
/* Unset provisioning version endpoint */
protocomm_unset_version(g_prov->pc, "proto-ver");
/* Stop protocomm server */
protocomm_httpd_stop(g_prov->pc);
/* Delete protocomm instance */
protocomm_delete(g_prov->pc);
/* Remove event handler */
esp_event_handler_unregister(WIFI_EVENT, ESP_EVENT_ANY_ID, app_prov_event_handler);
esp_event_handler_unregister(IP_EVENT, IP_EVENT_STA_GOT_IP, app_prov_event_handler);
}
/* Task spawned by timer callback */
static void stop_prov_task(void * arg)
{
ESP_LOGI(TAG, "Stopping provisioning");
app_prov_stop_service();
esp_wifi_set_mode(WIFI_MODE_STA);
/* Timer not needed anymore */
esp_timer_handle_t timer = g_prov->timer;
esp_timer_delete(timer);
g_prov->timer = NULL;
/* Free provisioning process data */
free(g_prov);
g_prov = NULL;
ESP_LOGI(TAG, "Provisioning stopped");
vTaskDelete(NULL);
}
/* Callback to be invoked by timer */
static void _stop_prov_cb(void * arg)
{
xTaskCreate(&stop_prov_task, "stop_prov", 2048, NULL, tskIDLE_PRIORITY, NULL);
}
/* Event handler for starting/stopping provisioning */
static void app_prov_event_handler(void* handler_arg, esp_event_base_t event_base,
int32_t event_id, void* event_data)
{
/* If pointer to provisioning application data is NULL
* then provisioning is not running */
if (!g_prov) {
return;
}
if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_START) {
ESP_LOGI(TAG, "STA Start");
/* Once configuration is received through protocomm,
* device is started as station. Once station starts,
* wait for connection to establish with configured
* host SSID and password */
g_prov->wifi_state = WIFI_PROV_STA_CONNECTING;
} else if (event_base == IP_EVENT && event_id == IP_EVENT_STA_GOT_IP) {
ESP_LOGI(TAG, "STA Got IP");
/* Station got IP. That means configuration is successful.
* Schedule timer to stop provisioning app after 30 seconds. */
g_prov->wifi_state = WIFI_PROV_STA_CONNECTED;
if (g_prov && g_prov->timer) {
/* Note that, after restarting the WiFi in Station + AP mode, the
* user gets disconnected from the AP for a while. But at the same
* time, the user app requests for status update from the device
* to verify that the provisioning was successful. Therefore, the
* turning off of the AP must be delayed long enough for the user
* to reconnect and get STA connection status from the device.
* Otherwise, the AP will be turned off before the user can
* reconnect and thus the user app will see connection timed out,
* signaling a failure in provisioning. */
esp_timer_start_once(g_prov->timer, 30000*1000U);
}
} else if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_DISCONNECTED) {
ESP_LOGE(TAG, "STA Disconnected");
/* Station couldn't connect to configured host SSID */
g_prov->wifi_state = WIFI_PROV_STA_DISCONNECTED;
wifi_event_sta_disconnected_t* disconnected = (wifi_event_sta_disconnected_t*) event_data;
ESP_LOGE(TAG, "Disconnect reason : %d", disconnected->reason);
/* Set code corresponding to the reason for disconnection */
switch (disconnected->reason) {
case WIFI_REASON_AUTH_EXPIRE:
case WIFI_REASON_4WAY_HANDSHAKE_TIMEOUT:
case WIFI_REASON_BEACON_TIMEOUT:
case WIFI_REASON_AUTH_FAIL:
case WIFI_REASON_ASSOC_FAIL:
case WIFI_REASON_HANDSHAKE_TIMEOUT:
ESP_LOGI(TAG, "STA Auth Error");
g_prov->wifi_disconnect_reason = WIFI_PROV_STA_AUTH_ERROR;
break;
case WIFI_REASON_NO_AP_FOUND:
ESP_LOGI(TAG, "STA AP Not found");
g_prov->wifi_disconnect_reason = WIFI_PROV_STA_AP_NOT_FOUND;
break;
default:
/* If none of the expected reasons,
* retry connecting to host SSID */
g_prov->wifi_state = WIFI_PROV_STA_CONNECTING;
}
esp_wifi_connect();
}
}
esp_err_t app_prov_get_wifi_state(wifi_prov_sta_state_t* state)
{
if (g_prov == NULL || state == NULL) {
return ESP_FAIL;
}
*state = g_prov->wifi_state;
return ESP_OK;
}
esp_err_t app_prov_get_wifi_disconnect_reason(wifi_prov_sta_fail_reason_t* reason)
{
if (g_prov == NULL || reason == NULL) {
return ESP_FAIL;
}
if (g_prov->wifi_state != WIFI_PROV_STA_DISCONNECTED) {
return ESP_FAIL;
}
*reason = g_prov->wifi_disconnect_reason;
return ESP_OK;
}
esp_err_t app_prov_is_provisioned(bool *provisioned)
{
*provisioned = false;
#ifdef CONFIG_EXAMPLE_RESET_PROVISIONED
esp_wifi_restore();
return ESP_OK;
#endif
/* Get WiFi Station configuration */
wifi_config_t wifi_cfg;
if (esp_wifi_get_config(WIFI_IF_STA, &wifi_cfg) != ESP_OK) {
return ESP_FAIL;
}
if (strlen((const char*) wifi_cfg.sta.ssid)) {
*provisioned = true;
ESP_LOGI(TAG, "Found ssid %s", (const char*) wifi_cfg.sta.ssid);
ESP_LOGI(TAG, "Found password %s", (const char*) wifi_cfg.sta.password);
}
return ESP_OK;
}
esp_err_t app_prov_configure_sta(wifi_config_t *wifi_cfg)
{
/* Configure WiFi as both AP and Station */
if (esp_wifi_set_mode(WIFI_MODE_APSTA) != ESP_OK) {
ESP_LOGE(TAG, "Failed to set WiFi mode");
return ESP_FAIL;
}
/* Configure WiFi station with host credentials
* provided during provisioning */
if (esp_wifi_set_config(WIFI_IF_STA, wifi_cfg) != ESP_OK) {
ESP_LOGE(TAG, "Failed to set WiFi configuration");
return ESP_FAIL;
}
/* Restart WiFi */
if (esp_wifi_start() != ESP_OK) {
ESP_LOGE(TAG, "Failed to restart WiFi");
return ESP_FAIL;
}
/* Connect to AP */
if (esp_wifi_connect() != ESP_OK) {
ESP_LOGE(TAG, "Failed to connect WiFi");
return ESP_FAIL;
}
if (g_prov) {
/* Reset wifi station state for provisioning app */
g_prov->wifi_state = WIFI_PROV_STA_CONNECTING;
}
return ESP_OK;
}
static esp_err_t start_wifi_ap(const char *ssid, const char *pass)
{
/* Build WiFi configuration for AP mode */
wifi_config_t wifi_config = {
.ap = {
.max_connection = 5,
},
};
strlcpy((char *) wifi_config.ap.ssid, ssid, sizeof(wifi_config.ap.ssid));
if (strlen(pass) == 0) {
memset(wifi_config.ap.password, 0, sizeof(wifi_config.ap.password));
wifi_config.ap.authmode = WIFI_AUTH_OPEN;
} else {
strlcpy((char *) wifi_config.ap.password, pass, sizeof(wifi_config.ap.password));
wifi_config.ap.authmode = WIFI_AUTH_WPA_WPA2_PSK;
}
/* Start WiFi in AP mode with configuration built above */
esp_err_t err = esp_wifi_set_mode(WIFI_MODE_AP);
if (err != ESP_OK) {
ESP_LOGE(TAG, "Failed to set WiFi mode : %d", err);
return err;
}
err = esp_wifi_set_config(WIFI_IF_AP, &wifi_config);
if (err != ESP_OK) {
ESP_LOGE(TAG, "Failed to set WiFi config : %d", err);
return err;
}
err = esp_wifi_start();
if (err != ESP_OK) {
ESP_LOGE(TAG, "Failed to start WiFi : %d", err);
return err;
}
return ESP_OK;
}
esp_err_t app_prov_start_softap_provisioning(const char *ssid, const char *pass,
int security, const protocomm_security_pop_t *pop)
{
/* If provisioning app data present,
* means provisioning app is already running */
if (g_prov) {
ESP_LOGI(TAG, "Invalid provisioning state");
return ESP_FAIL;
}
/* Allocate memory for provisioning app data */
g_prov = (struct app_prov_data *) calloc(1, sizeof(struct app_prov_data));
if (!g_prov) {
ESP_LOGI(TAG, "Unable to allocate prov data");
return ESP_ERR_NO_MEM;
}
/* Initialize app data */
g_prov->pop = pop;
g_prov->security = security;
/* Create timer object as a member of app data */
esp_timer_create_args_t timer_conf = {
.callback = _stop_prov_cb,
.arg = NULL,
.dispatch_method = ESP_TIMER_TASK,
.name = "stop_softap_tm"
};
esp_err_t err = esp_timer_create(&timer_conf, &g_prov->timer);
if (err != ESP_OK) {
ESP_LOGE(TAG, "Failed to create timer");
return err;
}
err = esp_event_handler_register(WIFI_EVENT, ESP_EVENT_ANY_ID, app_prov_event_handler, NULL);
if (err != ESP_OK) {
ESP_LOGE(TAG, "Failed to register WiFi event handler");
return err;
}
err = esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, app_prov_event_handler, NULL);
if (err != ESP_OK) {
ESP_LOGE(TAG, "Failed to register IP event handler");
return err;
}
/* Start WiFi softAP with specified ssid and password */
err = start_wifi_ap(ssid, pass);
if (err != ESP_OK) {
ESP_LOGE(TAG, "Failed to start WiFi AP");
return err;
}
/* Start provisioning service through HTTP */
err = app_prov_start_service();
if (err != ESP_OK) {
ESP_LOGE(TAG, "Failed to start provisioning app");
return err;
}
ESP_LOGI(TAG, "SoftAP Provisioning started with SSID '%s', Password '%s'", ssid, pass);
return ESP_OK;
}

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/* SoftAP based Provisioning Example
This example code is in the Public Domain (or CC0 licensed, at your option.)
Unless required by applicable law or agreed to in writing, this
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied.
*/
#pragma once
#include <esp_event.h>
#include <protocomm_security.h>
#include <wifi_provisioning/wifi_config.h>
/**
* @brief Get state of WiFi Station during provisioning
*
* @note WiFi is initially configured as AP, when
* provisioning starts. After provisioning data
* is provided by user, the WiFi is reconfigured
* to run as both AP and Station.
*
* @param[out] state Pointer to wifi_prov_sta_state_t variable to be filled
*
* @return
* - ESP_OK : Successfully retrieved wifi state
* - ESP_FAIL : Provisioning app not running
*/
esp_err_t app_prov_get_wifi_state(wifi_prov_sta_state_t* state);
/**
* @brief Get reason code in case of WiFi station
* disconnection during provisioning
*
* @param[out] reason Pointer to wifi_prov_sta_fail_reason_t variable to be filled
*
* @return
* - ESP_OK : Successfully retrieved wifi disconnect reason
* - ESP_FAIL : Provisioning app not running
*/
esp_err_t app_prov_get_wifi_disconnect_reason(wifi_prov_sta_fail_reason_t* reason);
/**
* @brief Checks if device is provisioned
* *
* @param[out] provisioned True if provisioned, else false
*
* @return
* - ESP_OK : Retrieved provision state successfully
* - ESP_FAIL : Failed to retrieve provision state
*/
esp_err_t app_prov_is_provisioned(bool *provisioned);
/**
* @brief Runs WiFi as both AP and Station
*
* Configures the WiFi station mode to connect to the
* SSID and password specified in config structure,
* and restarts WiFi to run as both AP and station
*
* @param[in] wifi_cfg Pointer to WiFi cofiguration structure
*
* @return
* - ESP_OK : WiFi configured and restarted successfully
* - ESP_FAIL : Failed to set configuration
*/
esp_err_t app_prov_configure_sta(wifi_config_t *wifi_cfg);
/**
* @brief Start provisioning via softAP
*
* Starts the WiFi softAP with specified ssid and pass, provisioning
* security mode and proof of possession (if any).
*
* @param[in] ssid SSID for SoftAP
* @param[in] pass Password for SoftAP
* @param[in] security Security mode
* @param[in] pop Pointer to proof of possession (NULL if not present)
*
* @return
* - ESP_OK : Provisioning started successfully
* - ESP_FAIL : Failed to start
*/
esp_err_t app_prov_start_softap_provisioning(const char *ssid, const char *pass,
int security, const protocomm_security_pop_t *pop);

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/* SoftAP based Provisioning Example
This example code is in the Public Domain (or CC0 licensed, at your option.)
Unless required by applicable law or agreed to in writing, this
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied.
*/
/* This file is mostly a boiler-plate code that applications can use without much change */
#include <stdio.h>
#include <string.h>
#include <esp_err.h>
#include <esp_log.h>
#include <esp_wifi.h>
#include <esp_netif.h>
#include <wifi_provisioning/wifi_config.h>
#include "app_prov.h"
static const char* TAG = "app_prov_handler";
/* Provide definition of wifi_prov_ctx_t */
struct wifi_prov_ctx {
wifi_config_t wifi_cfg;
};
static wifi_config_t *get_config(wifi_prov_ctx_t **ctx)
{
return (*ctx ? &(*ctx)->wifi_cfg : NULL);
}
static wifi_config_t *new_config(wifi_prov_ctx_t **ctx)
{
free(*ctx);
(*ctx) = (wifi_prov_ctx_t *) calloc(1, sizeof(wifi_prov_ctx_t));
return get_config(ctx);
}
static void free_config(wifi_prov_ctx_t **ctx)
{
free(*ctx);
*ctx = NULL;
}
static esp_err_t get_status_handler(wifi_prov_config_get_data_t *resp_data, wifi_prov_ctx_t **ctx)
{
/* Initialize to zero */
memset(resp_data, 0, sizeof(wifi_prov_config_get_data_t));
if (app_prov_get_wifi_state(&resp_data->wifi_state) != ESP_OK) {
ESP_LOGW(TAG, "Prov app not running");
return ESP_FAIL;
}
if (resp_data->wifi_state == WIFI_PROV_STA_CONNECTED) {
ESP_LOGI(TAG, "Connected state");
/* IP Addr assigned to STA */
esp_netif_ip_info_t ip_info;
esp_netif_get_ip_info(esp_netif_get_handle_from_ifkey("WIFI_STA_DEF"), &ip_info);
esp_ip4addr_ntoa(&ip_info.ip, resp_data->conn_info.ip_addr, sizeof(resp_data->conn_info.ip_addr));
/* AP information to which STA is connected */
wifi_ap_record_t ap_info;
esp_wifi_sta_get_ap_info(&ap_info);
memcpy(resp_data->conn_info.bssid, (char *)ap_info.bssid, sizeof(ap_info.bssid));
memcpy(resp_data->conn_info.ssid, (char *)ap_info.ssid, sizeof(ap_info.ssid));
resp_data->conn_info.channel = ap_info.primary;
resp_data->conn_info.auth_mode = ap_info.authmode;
} else if (resp_data->wifi_state == WIFI_PROV_STA_DISCONNECTED) {
ESP_LOGI(TAG, "Disconnected state");
/* If disconnected, convey reason */
app_prov_get_wifi_disconnect_reason(&resp_data->fail_reason);
} else {
ESP_LOGI(TAG, "Connecting state");
}
return ESP_OK;
}
static esp_err_t set_config_handler(const wifi_prov_config_set_data_t *req_data, wifi_prov_ctx_t **ctx)
{
wifi_config_t *wifi_cfg = get_config(ctx);
if (wifi_cfg) {
free_config(ctx);
}
wifi_cfg = new_config(ctx);
if (!wifi_cfg) {
ESP_LOGE(TAG, "Unable to alloc wifi config");
return ESP_FAIL;
}
ESP_LOGI(TAG, "WiFi Credentials Received : \n\tssid %s \n\tpassword %s",
req_data->ssid, req_data->password);
/* Using memcpy allows the max SSID length to be 32 bytes (as per 802.11 standard).
* But this doesn't guarantee that the saved SSID will be null terminated, because
* wifi_cfg->sta.ssid is also 32 bytes long (without extra 1 byte for null character).
* Although, this is not a matter for concern because esp_wifi library reads the SSID
* upto 32 bytes in absence of null termination */
const size_t ssid_len = strnlen(req_data->ssid, sizeof(wifi_cfg->sta.ssid));
/* Ensure SSID less than 32 bytes is null terminated */
memset(wifi_cfg->sta.ssid, 0, sizeof(wifi_cfg->sta.ssid));
memcpy(wifi_cfg->sta.ssid, req_data->ssid, ssid_len);
strlcpy((char *) wifi_cfg->sta.password, req_data->password, sizeof(wifi_cfg->sta.password));
return ESP_OK;
}
static esp_err_t apply_config_handler(wifi_prov_ctx_t **ctx)
{
wifi_config_t *wifi_cfg = get_config(ctx);
if (!wifi_cfg) {
ESP_LOGE(TAG, "WiFi config not set");
return ESP_FAIL;
}
app_prov_configure_sta(wifi_cfg);
ESP_LOGI(TAG, "WiFi Credentials Applied");
free_config(ctx);
return ESP_OK;
}
wifi_prov_config_handlers_t wifi_prov_handlers = {
.get_status_handler = get_status_handler,
.set_config_handler = set_config_handler,
.apply_config_handler = apply_config_handler,
.ctx = NULL
};

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#!/usr/bin/env python
#
# Copyright 2018 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.
from __future__ import print_function
import os
import re
import esp_prov
import tiny_test_fw
import ttfw_idf
import wifi_tools
from tiny_test_fw import Utility
# Have esp_prov throw exception
esp_prov.config_throw_except = True
@ttfw_idf.idf_example_test(env_tag='Example_WIFI_BT')
def test_examples_provisioning_softap(env, extra_data):
# Acquire DUT
dut1 = env.get_dut('softap_prov', 'examples/provisioning/legacy/softap_prov', dut_class=ttfw_idf.ESP32DUT)
# Get binary file
binary_file = os.path.join(dut1.app.binary_path, 'softap_prov.bin')
bin_size = os.path.getsize(binary_file)
ttfw_idf.log_performance('softap_prov_bin_size', '{}KB'.format(bin_size // 1024))
# Upload binary and start testing
dut1.start_app()
# Parse IP address of STA
dut1.expect('Starting WiFi SoftAP provisioning', timeout=60)
[ssid, password] = dut1.expect(re.compile(r"SoftAP Provisioning started with SSID '(\S+)', Password '(\S+)'"), timeout=30)
iface = wifi_tools.get_wiface_name()
if iface is None:
raise RuntimeError('Failed to get Wi-Fi interface on host')
print('Interface name : ' + iface)
print('SoftAP SSID : ' + ssid)
print('SoftAP Password : ' + password)
try:
ctrl = wifi_tools.wpa_cli(iface, reset_on_exit=True)
print('Connecting to DUT SoftAP...')
try:
ip = ctrl.connect(ssid, password)
except RuntimeError as err:
Utility.console_log('error: {}'.format(err))
try:
got_ip = dut1.expect(re.compile(r'DHCP server assigned IP to a station, IP is: (\d+.\d+.\d+.\d+)'), timeout=60)
Utility.console_log('got_ip: {}'.format(got_ip))
got_ip = got_ip[0]
if ip != got_ip:
raise RuntimeError('SoftAP connected to another host! {} != {}'.format(ip, got_ip))
except tiny_test_fw.DUT.ExpectTimeout:
# print what is happening on dut side
Utility.console_log('in exception tiny_test_fw.DUT.ExpectTimeout')
Utility.console_log(dut1.read())
raise
print('Connected to DUT SoftAP')
print('Starting Provisioning')
verbose = False
protover = 'V0.1'
secver = 1
pop = 'abcd1234'
provmode = 'softap'
ap_ssid = 'myssid'
ap_password = 'mypassword'
softap_endpoint = '{}.{}.{}.1:80'.format(ip.split('.')[0], ip.split('.')[1], ip.split('.')[2])
print('Getting security')
security = esp_prov.get_security(secver, pop, verbose)
if security is None:
raise RuntimeError('Failed to get security')
print('Getting transport')
transport = esp_prov.get_transport(provmode, softap_endpoint)
if transport is None:
raise RuntimeError('Failed to get transport')
print('Verifying protocol version')
if not esp_prov.version_match(transport, protover):
raise RuntimeError('Mismatch in protocol version')
print('Starting Session')
if not esp_prov.establish_session(transport, security):
raise RuntimeError('Failed to start session')
print('Sending Wifi credential to DUT')
if not esp_prov.send_wifi_config(transport, security, ap_ssid, ap_password):
raise RuntimeError('Failed to send Wi-Fi config')
print('Applying config')
if not esp_prov.apply_wifi_config(transport, security):
raise RuntimeError('Failed to send apply config')
if not esp_prov.wait_wifi_connected(transport, security):
raise RuntimeError('Provisioning failed')
finally:
ctrl.reset()
if __name__ == '__main__':
test_examples_provisioning_softap()