Commit 8be50ca3 authored by David Goulet's avatar David Goulet 🐼 Committed by Nick Mathewson
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relay: Change bandwidth stats interval to 24 hours 



Going from 4 hours to 24 hours in order to try reduce the efficiency of guard
discovery attacks.

Closes #23856

Signed-off-by: David Goulet's avatarDavid Goulet <dgoulet@torproject.org>
parent 831d3b79

changes/ticket23856

0 → 100644
+4 −0
Original line number Diff line number Diff line 
  o Minor feature (relay statistics): 

    - Change relay bandwidth reporting stats interval from 4 hours to 24 hours

      in order to reduce the efficiency of guard discovery attacks. Fixes

      ticket 23856.

src/or/rephist.c

+2 −2
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@@ -1131,9 +1131,9 @@ rep_hist_load_mtbf_data(time_t now) 
 * totals? */

#define NUM_SECS_ROLLING_MEASURE 10

/** How large are the intervals for which we track and report bandwidth use? */

#define NUM_SECS_BW_SUM_INTERVAL (4*60*60)

#define NUM_SECS_BW_SUM_INTERVAL (24*60*60)

/** How far in the past do we remember and publish bandwidth use? */

#define NUM_SECS_BW_SUM_IS_VALID (24*60*60)

#define NUM_SECS_BW_SUM_IS_VALID (5*24*60*60)

/** How many bandwidth usage intervals do we remember? (derived) */

#define NUM_TOTALS (NUM_SECS_BW_SUM_IS_VALID/NUM_SECS_BW_SUM_INTERVAL)

src/or/router.c

+1 −1
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@@ -2064,7 +2064,7 @@ mark_my_descriptor_dirty(const char *reason) 


/** How frequently will we republish our descriptor because of large (factor

 * of 2) shifts in estimated bandwidth? */

#define MAX_BANDWIDTH_CHANGE_FREQ (20*60)

#define MAX_BANDWIDTH_CHANGE_FREQ (3*60*60)



/** Check whether bandwidth has changed a lot since the last time we announced

 * bandwidth. If so, mark our descriptor dirty. */