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authorDavid Goulet <dgoulet@torproject.org>2022-07-26 16:16:04 -0400
committerDavid Goulet <dgoulet@torproject.org>2022-07-26 16:16:04 -0400
commit5260b4ef34da7a70eef09df121519ec31d37d9e0 (patch)
tree17f7870e36a5403c23b4c7f278c414a528b7fa45
parent4ba89c0ccc9452fa995f75a75824e828f62bbf92 (diff)
parent8d8afc4efa538682ef2b80f6664456b34b84e519 (diff)
downloadtor-5260b4ef34da7a70eef09df121519ec31d37d9e0.tar.gz
tor-5260b4ef34da7a70eef09df121519ec31d37d9e0.zip
Merge branch 'maint-0.4.5' into maint-0.4.6
-rw-r--r--changes/ticket406234
-rw-r--r--src/core/or/command.c10
2 files changed, 9 insertions, 5 deletions
diff --git a/changes/ticket40623 b/changes/ticket40623
new file mode 100644
index 0000000000..d2a0e7eaad
--- /dev/null
+++ b/changes/ticket40623
@@ -0,0 +1,4 @@
+ o Major bugfixes (relay):
+ - Stop sending TRUNCATED cell and instead close the circuits which sends a
+ DESTROY cell so every relay in the circuit path can stop queuing cells.
+ Fixes bug 40623; bugfix on 0.1.0.2-rc.
diff --git a/src/core/or/command.c b/src/core/or/command.c
index 622217a78e..1343177db4 100644
--- a/src/core/or/command.c
+++ b/src/core/or/command.c
@@ -660,11 +660,11 @@ command_process_destroy_cell(cell_t *cell, channel_t *chan)
if (CIRCUIT_IS_ORIGIN(circ)) {
circuit_mark_for_close(circ, reason|END_CIRC_REASON_FLAG_REMOTE);
} else {
- char payload[1];
- log_debug(LD_OR, "Delivering 'truncated' back.");
- payload[0] = (char)reason;
- relay_send_command_from_edge(0, circ, RELAY_COMMAND_TRUNCATED,
- payload, sizeof(payload), NULL);
+ /* Close the circuit so we stop queuing cells for it and propagate the
+ * DESTROY cell down the circuit so relays can stop queuing in-flight
+ * cells for this circuit which helps with memory pressure. */
+ log_debug(LD_OR, "Received DESTROY cell from n_chan, closing circuit.");
+ circuit_mark_for_close(circ, END_CIRC_REASON_TORPROTOCOL);
}
}
}