[Platform][Silabs][WIFI] The possible SecurityTypes returned from GetWiFiSecurityType doesn't match the spec.

[jmartinez-silabs]

Reproduction steps

The Security type from the structure wfx_wifi_scan_result_t obtained by the function wfx_get_ap_info doesn't match the Matter spec but is assigned as is to the WiFiNetworkDiagnostics::SecurityTypeEnum.

CHIP_ERROR DiagnosticDataProviderImpl::GetWiFiSecurityType(app::Clusters::WiFiNetworkDiagnostics::SecurityTypeEnum & securityType)
{
    using app::Clusters::WiFiNetworkDiagnostics::SecurityTypeEnum;

    wfx_wifi_scan_result_t ap;
    int32_t err = wfx_get_ap_info(&ap);
    if (err == 0)
    {
        securityType = static_cast<SecurityTypeEnum>(ap.security);

The possible values from ap.security are describe by the following enum wfx_sec_t.

/* Note that these are same as RSI_security */
typedef enum
{
    WFX_SEC_NONE           = 0,
    WFX_SEC_WPA            = 1,
    WFX_SEC_WPA2           = 2,
    WFX_SEC_WEP            = 3,
    WFX_SEC_WPA_EAP        = 4,
    WFX_SEC_WPA2_EAP       = 5,
    WFX_SEC_WPA_WPA2_MIXED = 6,
    WFX_SEC_WPA_PMK        = 7,
    WFX_SEC_WPA2_PMK       = 8,
    WFX_SEC_WPS_PIN        = 9,
    WFX_SEC_GEN_WPS_PIN    = 10,
    WFX_SEC_PUSH_BTN       = 11,
    WFX_SEC_WPA3           = 11,
} wfx_sec_t;

A conversion must be made to respect the possible values of SecurityTypeEnum as described by the spec

See "11.14.5.1. SecurityTypeEnum" in the Matter spec for more details.

Platform

efr32

Platform Version(s)

No response

Type

Platform validated

(Optional) If manually tested please explain why this is only manually tested

No response

Anything else?

No response