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Merge branch 'feature/enable_tls_with_secure_element' into 'master'

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esp-mqtt: add support for tls with secure element (ATECC608A)

See merge request espressif/esp-mqtt!66
This commit is contained in:
David Čermák
2020-06-25 13:42:41 +08:00
parent 2f9b337071 a7ff9afa3f
commit 109985d3ad
3 changed files with 15 additions and 0 deletions
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1
include/mqtt_client.h
View File

@ -183,6 +183,7 @@ typedef struct {
esp_mqtt_protocol_ver_t protocol_ver; /*!< MQTT protocol version used for connection, defaults to value from menuconfig*/
int out_buffer_size; /*!< size of MQTT output buffer. If not defined, both output and input buffers have the same size defined as ``buffer_size`` */
bool skip_cert_common_name_check; /*!< Skip any validation of server certificate CN field, this reduces the security of TLS and makes the mqtt client susceptible to MITM attacks */
bool use_secure_element; /*!< enable secure element for enabling SSL connection */
} esp_mqtt_client_config_t;
/**

1
include/mqtt_supported_features.h
View File

@ -46,6 +46,7 @@
#define MQTT_SUPPORTED_FEATURE_DER_CERTIFICATES
#define MQTT_SUPPORTED_FEATURE_ALPN
#define MQTT_SUPPORTED_FEATURE_CLIENT_KEY_PASSWORD
#define MQTT_SUPPORTED_FEATURE_SECURE_ELEMENT
#endif
#endif

13
mqtt_client.c
View File

@ -81,6 +81,7 @@ typedef struct {
size_t clientkey_bytes;
const struct psk_key_hint *psk_hint_key;
bool skip_cert_common_name_check;
bool use_secure_element;
} mqtt_config_storage_t;
typedef enum {
@ -206,6 +207,17 @@ static esp_err_t esp_mqtt_set_ssl_transport_properties(esp_transport_list_handle
goto esp_mqtt_set_transport_failed);
}
if (cfg->use_secure_element) {
#if defined(MQTT_SUPPORTED_FEATURE_SECURE_ELEMENT) && (CONFIG_ESP_TLS_USE_SECURE_ELEMENT)
esp_transport_ssl_use_secure_element(ssl);
#ifdef CONFIG_ATECC608A_TCUSTOM
ESP_OK_CHECK(TAG, esp_mqtt_set_cert_key_data(ssl, MQTT_SSL_DATA_API_CLIENT_CERT, cfg->clientcert_buf, cfg->clientcert_bytes),
goto esp_mqtt_set_transport_failed);
#endif
#else
ESP_LOGE(TAG, "secure element not enabled for esp-tls in menuconfig");
#endif
}
ESP_OK_CHECK(TAG, esp_mqtt_set_cert_key_data(ssl, MQTT_SSL_DATA_API_CLIENT_CERT, cfg->clientcert_buf, cfg->clientcert_bytes),
goto esp_mqtt_set_transport_failed);
ESP_OK_CHECK(TAG, esp_mqtt_set_cert_key_data(ssl, MQTT_SSL_DATA_API_CLIENT_KEY, cfg->clientkey_buf, cfg->clientkey_bytes),
@ -428,6 +440,7 @@ esp_err_t esp_mqtt_set_config(esp_mqtt_client_handle_t client, const esp_mqtt_cl
cfg->clientkey_bytes = config->client_key_len;
cfg->psk_hint_key = config->psk_hint_key;
cfg->skip_cert_common_name_check = config->skip_cert_common_name_check;
cfg->use_secure_element = config->use_secure_element;
if (config->clientkey_password && config->clientkey_password_len) {
cfg->clientkey_password_len = config->clientkey_password_len;