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Stack overflow in task mender

Hi there,

I just tried to go through your intructions for connecting a ESP32 module with mender, unfortunately there are some errors displayed when flashing the device, i added a screenshot of the Error message in the terminal down below. (stack overflow)
Afterwards it starts rebooting multiple times with the same result.

I also tried to flash on another device but the error is still there, the main device I am using is an ESP32-WROOM-32, so I guess there should be no poblem about flash sizes or stuff like that. Do you have any advices how to fix this error?

Thanks in advance for any kind of help.

with best regards
Sam

Errorpicture

Condition never true in mender_api_perform_authentication

Hi @joelguittet,

Yes it's me again :)
This time it's not really an issue, but more a remark. I was looking to add an info to the identity of the device (we use a "Serial Number" field instead of the mac address to quickly find our device on Mender server). I found where to add it, but was surprise not to see it on server side. I just found out that it's because even if I don't have a tenant token, the else condition from the following code is never fired:

    /* Format payload */
    if (NULL != mender_api_config.tenant_token) {
        if (NULL
            == (payload = (char *)malloc(strlen("{ \"id_data\": \"{ \\\"mac\\\": \\\"\\\"}\", \"pubkey\": \"\", \"tenant_token\": \"\" }")
                                         + strlen(mender_api_config.mac_address) + strlen(public_key_pem) + strlen(mender_api_config.tenant_token) + 1))) {
            mender_log_error("Unable to allocate memory");
            ret = MENDER_FAIL;
            goto END;
        }
        sprintf(payload,
                "{ \"id_data\": \"{ \\\"mac\\\": \\\"%s\\\"}\", \"pubkey\": \"%s\", \"tenant_token\": \"%s\" }",
                mender_api_config.mac_address,
                public_key_pem,
                mender_api_config.tenant_token);
    } else {
        if (NULL
            == (payload = (char *)malloc(strlen("{ \"id_data\": \"{ \"Serial Number\": \"\"}\", \"pubkey\": \"\" }") + strlen(mender_api_config.serial_number)
                                         + strlen(public_key_pem) + 1))) {
            mender_log_error("Unable to allocate memory");
            ret = MENDER_FAIL;
            goto END;
        }
        sprintf(payload, "{ \"id_data\": \"{ \"Serial Number\": \"%s\"}\", \"pubkey\": \"%s\" }", mender_api_config.serial_number, public_key_pem);
    }

And it's simply because the tenant token initialized as NULL is then replace with "". So I'm not sure what would be the best, either adding a check box in the Kconfig, or completing the condition with != NULL & != "", so just wanted to open the discussion :)

esp-x509-crt-bundle: Failed to verify certificate

Hi,

I wanted to test your example before implementing it to my project, as it would be lovely for us to be able to use Mender on ESP32 (already using it with Raspberry Pi on production). But I'm getting an error after flashing your code without touching anything else than the Mender Host in SDKconfig:

I (5537) main: Running project 'mender-esp32-example' version '0.1'
I (5547) main: Mender client initialized
I (5557) mender: ./components/mender-mcu-client/mender-mcu-client/platform/storage/esp-idf/nvs/src/mender-storage.c (169): OTA ID or artifact name not available
I (5557) mender: ./components/mender-mcu-client/mender-mcu-client/platform/storage/esp-idf/nvs/src/mender-storage.c (242): Device configuration not available
I (5577) main: Mender configure initialized
I (5587) main: Mender inventory initialized
I (5587) main: Mender troubleshoot initialized
I (5597) main: Device configuration retrieved
I (7027) wifi:<ba-add>idx:1 (ifx:0, 34:60:f9:8b:a8:67), tid:0, ssn:0, winSize:64
E (7097) esp-x509-crt-bundle: Failed to verify certificate
E (7097) esp-tls-mbedtls: mbedtls_ssl_handshake returned -0x3000
E (7097) esp-tls: Failed to open new connection
E (7107) transport_base: Failed to open a new connection
E (7117) HTTP_CLIENT: Connection failed, sock < 0
E (7117) mender: ./components/mender-mcu-client/mender-mcu-client/platform/net/esp-idf/src/mender-http.c (122): Unable to open HTTP client connection: ESP_ERR_HTTP_CONNECT
E (7137) mender: ./components/mender-mcu-client/mender-mcu-client/core/src/mender-api.c (187): Unable to perform HTTP request
I (7147) main: Mender client authentication failed (1/3)

I also tried changing the mender_client_config.recommissioning from false to true, but still get the same issue:

I (5537) main: Running project 'mender-esp32-example' version '0.1'
I (5547) mender: ./components/mender-mcu-client/mender-mcu-client/platform/tls/generic/mbedtls/src/mender-tls.c (114): Delete authentication keys...
I (5557) main: Mender client initialized
I (5567) mender: ./components/mender-mcu-client/mender-mcu-client/platform/storage/esp-idf/nvs/src/mender-storage.c (90): Authentication keys are not available
I (5577) mender: ./components/mender-mcu-client/mender-mcu-client/platform/tls/generic/mbedtls/src/mender-tls.c (126): Generating authentication keys...
I (5617) mender: ./components/mender-mcu-client/mender-mcu-client/platform/storage/esp-idf/nvs/src/mender-storage.c (242): Device configuration not available
I (5617) main: Mender configure initialized
I (5627) main: Mender inventory initialized
I (5627) main: Mender troubleshoot initialized
I (5637) main: Device configuration retrieved
I (12357) mender: ./components/mender-mcu-client/mender-mcu-client/platform/storage/esp-idf/nvs/src/mender-storage.c (169): OTA ID or artifact name not available
I (13817) wifi:<ba-add>idx:1 (ifx:0, 34:60:f9:8b:a8:67), tid:0, ssn:0, winSize:64
E (13867) esp-x509-crt-bundle: Failed to verify certificate
E (13867) esp-tls-mbedtls: mbedtls_ssl_handshake returned -0x3000
E (13867) esp-tls: Failed to open new connection
E (13877) transport_base: Failed to open a new connection
E (13877) HTTP_CLIENT: Connection failed, sock < 0
E (13887) mender: ./components/mender-mcu-client/mender-mcu-client/platform/net/esp-idf/src/mender-http.c (122): Unable to open HTTP client connection: ESP_ERR_HTTP_CONNECT
E (13897) mender: ./components/mender-mcu-client/mender-mcu-client/core/src/mender-api.c (187): Unable to perform HTTP request
I (13907) main: Mender client authentication failed (1/3)

Any idea of what I'm missing here?

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