u8 * tlsv1_server_handshake_write(struct tlsv1_server *conn, size_t *out_len) { switch (conn->state) { case SERVER_HELLO: return tls_send_server_hello(conn, out_len); case SERVER_CHANGE_CIPHER_SPEC: return tls_send_change_cipher_spec(conn, out_len); default: if (conn->state == ESTABLISHED && conn->use_session_ticket) { /* Abbreviated handshake was already completed. */ return NULL; } wpa_printf(MSG_DEBUG, "TLSv1: Unexpected state %d while " "generating reply", conn->state); return NULL; } }
u8 * tlsv1_client_handshake_write(struct tlsv1_client *conn, size_t *out_len, int no_appl_data) { switch (conn->state) { case CLIENT_KEY_EXCHANGE: return tls_send_client_key_exchange(conn, out_len); case CHANGE_CIPHER_SPEC: return tls_send_change_cipher_spec(conn, out_len); case ACK_FINISHED: wpa_printf(MSG_DEBUG, "TLSv1: Handshake completed " "successfully"); conn->state = ESTABLISHED; *out_len = 0; if (no_appl_data) { /* Need to return something to get final TLS ACK. */ return os_malloc(1); } return NULL; default: wpa_printf(MSG_DEBUG, "TLSv1: Unexpected state %d while " "generating reply", conn->state); return NULL; } }