diff options
Diffstat (limited to 'src/or/relay.c')
| -rw-r--r-- | src/or/relay.c | 55 |
1 files changed, 21 insertions, 34 deletions
diff --git a/src/or/relay.c b/src/or/relay.c index a26d4186d0..f0861f2f7c 100644 --- a/src/or/relay.c +++ b/src/or/relay.c @@ -1494,7 +1494,8 @@ connection_edge_process_relay_cell(cell_t *cell, circuit_t *circ, if (layer_hint) { if (layer_hint->package_window + CIRCWINDOW_INCREMENT > CIRCWINDOW_START_MAX) { - log_fn(LOG_PROTOCOL_WARN, LD_PROTOCOL, + static struct ratelim_t exit_warn_ratelim = RATELIM_INIT(600); + log_fn_ratelim(&exit_warn_ratelim, LOG_WARN, LD_PROTOCOL, "Unexpected sendme cell from exit relay. " "Closing circ."); return -END_CIRC_REASON_TORPROTOCOL; @@ -1506,7 +1507,8 @@ connection_edge_process_relay_cell(cell_t *cell, circuit_t *circ, } else { if (circ->package_window + CIRCWINDOW_INCREMENT > CIRCWINDOW_START_MAX) { - log_fn(LOG_PROTOCOL_WARN, LD_PROTOCOL, + static struct ratelim_t client_warn_ratelim = RATELIM_INIT(600); + log_fn_ratelim(&client_warn_ratelim, LOG_WARN, LD_PROTOCOL, "Unexpected sendme cell from client. " "Closing circ (window %d).", circ->package_window); @@ -2146,11 +2148,11 @@ cell_queue_append(cell_queue_t *queue, packed_cell_t *cell) /** Append a newly allocated copy of <b>cell</b> to the end of <b>queue</b> */ void cell_queue_append_packed_copy(cell_queue_t *queue, const cell_t *cell, - int wide_circ_ids) + int wide_circ_ids, int use_stats) { packed_cell_t *copy = packed_cell_copy(cell, wide_circ_ids); /* Remember the time when this cell was put in the queue. */ - if (get_options()->CellStatistics) { + if (get_options()->CellStatistics && use_stats) { struct timeval now; uint32_t added; insertion_time_queue_t *it_queue = queue->insertion_times; @@ -2345,7 +2347,7 @@ channel_flush_from_first_active_circuit(channel_t *chan, int max) { circuitmux_t *cmux = NULL; int n_flushed = 0; - cell_queue_t *queue; + cell_queue_t *queue, *destroy_queue=NULL; circuit_t *circ; or_circuit_t *or_circ; int streams_blocked; @@ -2358,7 +2360,18 @@ channel_flush_from_first_active_circuit(channel_t *chan, int max) /* Main loop: pick a circuit, send a cell, update the cmux */ while (n_flushed < max) { - circ = circuitmux_get_first_active_circuit(cmux); + circ = circuitmux_get_first_active_circuit(cmux, &destroy_queue); + if (destroy_queue) { + /* this code is duplicated from some of the logic below. Ugly! XXXX */ + tor_assert(destroy_queue->n > 0); + cell = cell_queue_pop(destroy_queue); + channel_write_packed_cell(chan, cell); + /* Update the cmux destroy counter */ + circuitmux_notify_xmit_destroy(cmux); + cell = NULL; + ++n_flushed; + continue; + } /* If it returns NULL, no cells left to send */ if (!circ) break; assert_cmux_ok_paranoid(chan); @@ -2466,10 +2479,8 @@ append_cell_to_circuit_queue(circuit_t *circ, channel_t *chan, cell_t *cell, cell_direction_t direction, streamid_t fromstream) { - or_circuit_t *orcirc = NULL; cell_queue_t *queue; int streams_blocked; - if (circ->marked_for_close) return; @@ -2477,36 +2488,12 @@ append_cell_to_circuit_queue(circuit_t *circ, channel_t *chan, queue = &circ->n_chan_cells; streams_blocked = circ->streams_blocked_on_n_chan; } else { - orcirc = TO_OR_CIRCUIT(circ); + or_circuit_t *orcirc = TO_OR_CIRCUIT(circ); queue = &orcirc->p_chan_cells; streams_blocked = circ->streams_blocked_on_p_chan; } - /* Are we a middle circuit about to exceed ORCIRC_MAX_MIDDLE_CELLS? */ - if ((circ->n_chan != NULL) && CIRCUIT_IS_ORCIRC(circ)) { - orcirc = TO_OR_CIRCUIT(circ); - if (orcirc->p_chan) { - if (queue->n + 1 >= ORCIRC_MAX_MIDDLE_CELLS) { - /* Queueing this cell would put queue over the cap */ - log_warn(LD_CIRC, - "Got a cell exceeding the cap of %u in the %s direction " - "on middle circ ID %u on chan ID " U64_FORMAT - "; killing the circuit.", - ORCIRC_MAX_MIDDLE_CELLS, - (direction == CELL_DIRECTION_OUT) ? "n" : "p", - (direction == CELL_DIRECTION_OUT) ? - circ->n_circ_id : orcirc->p_circ_id, - U64_PRINTF_ARG( - (direction == CELL_DIRECTION_OUT) ? - circ->n_chan->global_identifier : - orcirc->p_chan->global_identifier)); - circuit_mark_for_close(circ, END_CIRC_REASON_RESOURCELIMIT); - return; - } - } - } - - cell_queue_append_packed_copy(queue, cell, chan->wide_circ_ids); + cell_queue_append_packed_copy(queue, cell, chan->wide_circ_ids, 1); /* If we have too many cells on the circuit, we should stop reading from * the edge streams for a while. */ |