-static void
-_on_connect (struct rs_connection *conn)
-{
- conn->is_connected = 1;
- rs_debug (("%s: %p connected\n", __func__, conn->active_peer));
- evtimer_del (conn->tev);
- if (conn->callbacks.connected_cb)
- conn->callbacks.connected_cb (conn->user_data);
-}
-
-static void
-_on_disconnect (struct rs_connection *conn)
-{
- conn->is_connecting = 0;
- conn->is_connected = 0;
- rs_debug (("%s: %p disconnected\n", __func__, conn->active_peer));
- if (conn->callbacks.disconnected_cb)
- conn->callbacks.disconnected_cb (conn->user_data);
-}
-
-static void
-_event_cb (struct bufferevent *bev, short events, void *ctx)
-{
- struct rs_packet *pkt = (struct rs_packet *)ctx;
- struct rs_connection *conn = NULL;
- struct rs_peer *p = NULL;
- int sockerr = 0;
-#if defined (RS_ENABLE_TLS)
- unsigned long tlserr = 0;
-#endif
-
- assert (pkt);
- assert (pkt->conn);
- assert (pkt->conn->active_peer);
- conn = pkt->conn;
- p = conn->active_peer;
-
- conn->is_connecting = 0;
- if (events & BEV_EVENT_CONNECTED)
- {
- _on_connect (conn);
- if (_do_send (pkt))
- rs_debug (("%s: error sending\n", __func__));
- }
- else if (events & BEV_EVENT_EOF)
- {
- _on_disconnect (conn);
- }
- else if (events & BEV_EVENT_TIMEOUT)
- {
- rs_debug (("%s: %p times out on %s\n", __func__, p,
- (events & BEV_EVENT_READING) ? "read" : "write"));
- rs_err_conn_push_fl (pkt->conn, RSE_TIMEOUT_IO, __FILE__, __LINE__, NULL);
- }
- else if (events & BEV_EVENT_ERROR)
- {
- sockerr = evutil_socket_geterror (conn->active_peer->fd);
- if (sockerr == 0) /* FIXME: True that errno == 0 means closed? */
- {
- _on_disconnect (conn);
- }
- else
- {
- rs_err_conn_push_fl (pkt->conn, RSE_SOCKERR, __FILE__, __LINE__,
- "%d: socket error %d (%s)",
- conn->fd,
- sockerr,
- evutil_socket_error_to_string (sockerr));
- rs_debug (("%s: socket error on fd %d: %s (%d)\n", __func__,
- conn->fd,
- evutil_socket_error_to_string (sockerr),
- sockerr));
- }
-#if defined (RS_ENABLE_TLS)
- if (conn->tls_ssl) /* FIXME: correct check? */
- {
- for (tlserr = bufferevent_get_openssl_error (conn->bev);
- tlserr;
- tlserr = bufferevent_get_openssl_error (conn->bev))
- {
- rs_debug (("%s: openssl error: %s\n", __func__,
- ERR_error_string (tlserr, NULL)));
- rs_err_conn_push_fl (pkt->conn, RSE_SSLERR, __FILE__, __LINE__,
- ERR_error_string (tlserr, NULL));
- }
- }
-#endif /* RS_ENABLE_TLS */
- _loopbreak (conn);
- }
-
-#if defined (DEBUG)
- if (events & BEV_EVENT_ERROR && events != BEV_EVENT_ERROR)
- rs_debug (("%s: BEV_EVENT_ERROR and more: 0x%x\n", __func__, events));
-#endif
-}
-
-static void
-_write_cb (struct bufferevent *bev, void *ctx)
-{
- struct rs_packet *pkt = (struct rs_packet *) ctx;
-
- assert (pkt);
- assert (pkt->conn);
-
- if (pkt->conn->callbacks.sent_cb)
- pkt->conn->callbacks.sent_cb (pkt->conn->user_data);
-}
-
-/* Read one RADIUS packet header. Return !0 on error. A return value
- of 0 means that we need more data. */
-static int
-_read_header (struct rs_packet *pkt)
-{
- size_t n = 0;
-
- n = bufferevent_read (pkt->conn->bev, pkt->hdr, RS_HEADER_LEN);
- if (n == RS_HEADER_LEN)
- {
- pkt->hdr_read_flag = 1;
- pkt->rpkt->data_len = (pkt->hdr[2] << 8) + pkt->hdr[3];
- if (pkt->rpkt->data_len < 20 || pkt->rpkt->data_len > 4096)
- {
- bufferevent_free (pkt->conn->bev); /* Close connection. */
- return rs_err_conn_push (pkt->conn, RSE_INVALID_PKT,
- "invalid packet length: %d",
- pkt->rpkt->data_len);
- }
- pkt->rpkt->data = rs_malloc (pkt->conn->ctx, pkt->rpkt->data_len);
- if (!pkt->rpkt->data)
- {
- bufferevent_free (pkt->conn->bev); /* Close connection. */
- return rs_err_conn_push_fl (pkt->conn, RSE_NOMEM, __FILE__, __LINE__,
- NULL);
- }
- memcpy (pkt->rpkt->data, pkt->hdr, RS_HEADER_LEN);
- bufferevent_setwatermark (pkt->conn->bev, EV_READ,
- pkt->rpkt->data_len - RS_HEADER_LEN, 0);
- rs_debug (("%s: packet header read, total pkt len=%d\n",
- __func__, pkt->rpkt->data_len));
- }
- else if (n < 0)
- {
- rs_debug (("%s: buffer frozen while reading header\n", __func__));
- }
- else /* Error: libevent gave us less than the low watermark. */