Function esp_idf_sys::mbedtls_ccm_set_lengths

pub unsafe extern "C" fn mbedtls_ccm_set_lengths(
    ctx: *mut mbedtls_ccm_context,
    total_ad_len: usize,
    plaintext_len: usize,
    tag_len: usize
) -> c_int

\brief This function declares the lengths of the message and additional data for a CCM encryption or decryption operation.

             This function and mbedtls_ccm_starts() must be called
             before calling mbedtls_ccm_update_ad() or
             mbedtls_ccm_update(). This function can be called before
             or after mbedtls_ccm_starts().

\note This function is not implemented in Mbed TLS yet.

\param ctx The CCM context. This must be initialized. \param total_ad_len The total length of additional data in bytes. This must be less than 2^16 - 2^8. \param plaintext_len The length in bytes of the plaintext to encrypt or result of the decryption (thus not encompassing the additional data that are not encrypted). \param tag_len The length of the tag to generate in Bytes: 4, 6, 8, 10, 12, 14 or 16. For CCM*, zero is also valid.

\return \c 0 on success. \return #MBEDTLS_ERR_CCM_BAD_INPUT on failure: \p ctx is in an invalid state, \p total_ad_len is greater than \c 0xFF00.