David Goulet d064122e70 relay: Implement a circuit cell queue maximum size
This commit introduces the consensus parameter "circ_max_cell_queue_size"
which controls the maximum number of cells a circuit queue should have.

The default value is currently 50000 cells which is above what should be
expected but keeps us a margin of error for padding cells.

Related to this is #9072. Back in 0.2.4.14-alpha, we've removed that limit due
to a Guard discovery attack. Ticket #25226 details why we are putting back the
limit due to the memory pressure issue on relays.

Fixes #25226

Signed-off-by: David Goulet <dgoulet@torproject.org>
2018-04-16 09:59:12 -04:00
2018-03-29 11:24:02 -04:00
2017-12-13 12:07:46 -05:00
2017-03-15 16:13:17 -04:00
2018-03-29 11:24:02 -04:00
2017-03-15 16:13:17 -04:00
2018-01-16 13:36:48 -05:00

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