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MATTYGILO opened this issue Jun 25, 2022 · 12 comments
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ESP32 WPA2 Enterprise #8819

MATTYGILO opened this issue Jun 25, 2022 · 12 comments
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enhancement Feature requests, new feature implementations

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@MATTYGILO
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Micropython would feel more complete with WPA Enterprise for esp32. This is an essential function that is not yet met.

All help and suggestions would be great. If there are way around this for now.
@MATTYGILO MATTYGILO added the enhancement Feature requests, new feature implementations label Jun 25, 2022
@MATTYGILO
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Been requested since 2019:

https://forum.micropython.org/viewtopic.php?f=18&t=7219
https://forum.micropython.org/viewtopic.php?t=10543

@SL2021-Dev
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SL2021-Dev commented Sep 18, 2023 •
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I am also in need of an enterprise login capabilities.
Arduino, Pycom (I know... GONE) and CircuitPython have this ability.
v1.21 is about to come out, PLEASE INCLUDE
It has been 2 years 5 months since...
image

@MATTYGILO
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@SL2021-Dev

Step 1)
Fork micropython repo
Add wpa_supplicant to set(IDF_COMPONENTS …) in /micropython/ports/esp32/main/CMakeLists.txt

Step 2)
Create a custom micropython module (Provided) and reference it with your build

enterprise.c:

#include <string.h>

#include "py/builtin.h"
#include "py/runtime.h"
#include "py/mpconfig.h"
#include "py/objstr.h"
#include "py/obj.h"
#include "py/stream.h"
#include "py/mperrno.h"

#include "esp_wifi.h"
#include "esp_wpa2.h"
#include "esp_log.h"
#include "esp_event.h"

#include "modnetwork.h"


// Set up EAP
STATIC mp_obj_t esp_seteap(mp_obj_t username, mp_obj_t password){

    // The length of username and password
    size_t Ilen;
    size_t Plen;

    // Converts from micropython form to C form
    const char *EAP_IDENTITY = mp_obj_str_get_data(username,&Ilen);
    const char *EAP_PASSWORD = mp_obj_str_get_data(password,&Plen);

    // Sets the identity and password
    esp_exceptions(esp_wifi_sta_wpa2_ent_set_identity((uint8_t *)EAP_IDENTITY, strlen(EAP_IDENTITY)));
    esp_exceptions(esp_wifi_sta_wpa2_ent_set_username((uint8_t *)EAP_IDENTITY, strlen(EAP_IDENTITY)));
    // esp_exceptions(esp_wifi_sta_wpa2_ent_set_new_password((uint8_t *)EAP_PASSWORD, strlen(EAP_PASSWORD)));
    esp_exceptions(esp_wifi_sta_wpa2_ent_set_password((uint8_t *)EAP_PASSWORD, strlen(EAP_PASSWORD)));

    // Enables wpa enterprise
    esp_wifi_sta_wpa2_ent_enable();

    return mp_const_none;
}


MP_DEFINE_CONST_FUN_OBJ_2(esp_seteap_obj, esp_seteap);

// Set channel
STATIC mp_obj_t esp_setchannel(mp_obj_t channel){

    // Converts from micropython form to C form
    int channel_num = mp_obj_get_int(channel);

    // Sets the channel
    esp_exceptions(esp_wifi_set_channel(channel_num, WIFI_SECOND_CHAN_NONE));

    return mp_const_none;
}

MP_DEFINE_CONST_FUN_OBJ_1(esp_setchannel_obj, esp_setchannel);

STATIC const mp_rom_map_elem_t mp_module_enterprise_globals_table[] = {
    { MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_enterprise) },
    { MP_ROM_QSTR(MP_QSTR_seteap), MP_ROM_PTR(&esp_seteap_obj) },
    { MP_ROM_QSTR(MP_QSTR_setchannel), MP_ROM_PTR(&esp_setchannel_obj) },
};

STATIC MP_DEFINE_CONST_DICT(mp_module_enterprise_globals, mp_module_enterprise_globals_table);

const mp_obj_module_t mp_module_enterprise = {
        .base = { &mp_type_module },
        .globals = (mp_obj_dict_t *)&mp_module_enterprise_globals,
};

MP_REGISTER_MODULE(MP_QSTR_enterprise, mp_module_enterprise);

micropython.cmake:

add_library(usermod_enterprise INTERFACE)

target_sources(usermod_enterprise INTERFACE
        ${CMAKE_CURRENT_LIST_DIR}/enterprise.c
)

target_include_directories(usermod_enterprise INTERFACE
    ${CMAKE_CURRENT_LIST_DIR}
)

target_link_libraries(usermod INTERFACE usermod_enterprise)

micropython.mk:

# this file autodetected by py/py.mk based on its name

MBEDTLS_MOD_DIR := $(USERMOD_DIR)

SRC_USERMOD += $(MBEDTLS_MOD_DIR)/enterprise.c

Place these files in an folder called enterprise
Add reference to you MicroPython firmware build using

include(${CMAKE_CURRENT_LIST_DIR}/enterprise/micropython.cmake)

@SL2021-Dev
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SL2021-Dev commented Sep 18, 2023 •
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@MATTYGILO

Thank you very much for your great instructions !!!
I am getting an error...
CMake Error at enterprise/micropython.cmake:11 (target_link_libraries): Cannot specify link libraries for target "usermod" which is not built by this project.
I'm using micropythoh v 1.20 and IDF 4.4.5
Any ideas what I'm doing wrong?

@MATTYGILO
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@SL2021-Dev Not fully sure, not incredibly well versed with CMAKE, but it will be due to the way you're referencing the cmake file

@MATTYGILO
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You could be trying to reference it from a make file perhaps

@SL2021-Dev
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SL2021-Dev commented Sep 19, 2023 •
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Based on my interpretation of your instructions.

image

I totally don't understand the Make system either. I'm hanging on by a thread with just building these binaries.

If micropython does not included a needed function, you literally would have to learn C, which defeats the whole purpose of using micropython. This is unfortunate because ESP IDF probably has many other capabilities that micropythoners can't use until the maintainers get around to including it.

Do you think this should be moved to the micropython group?

@one0410
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one0410 commented Nov 25, 2023

Do you plan to merge this into master branch?

@andrewleech
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It would be good to see the code above submitted as a pull request for proper review.

@MATTYGILO
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@SL2021-Dev
Path would be micropython/ports/esp32/main/CMakeLists.txt for the wpa_supplicant
Screenshot 2023-11-28 at 09 48 48

Also have a look into making a custom C module:
https://docs.micropython.org/en/latest/develop/cmodules.html

@one0410
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one0410 commented Mar 8, 2024

I still don't know how to make a custom image.
It seems different from above.

image

Could anybody help to write a tutorial or make image for us??

@one0410
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one0410 commented Jun 19, 2024

Hi, I really need this wpa2-enterprise feature.
Could anybody teach me how to build a custom image??
Thank you very much.

@Carglglz Carglglz mentioned this issue Dec 21, 2024
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