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Merge branch 'maint-0.3.0' into maint-0.3.1

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This commit is contained in:
Nick Mathewson 2017-12-11 16:54:14 -05:00
commit 04524443d0
3 changed files with 7 additions and 3 deletions
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4
changes/ticket23856 Normal file
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@ -0,0 +1,4 @@
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.

4
src/or/rephist.c
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@ -1239,9 +1239,9 @@ 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)

2
src/or/router.c
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@ -2526,7 +2526,7 @@ mark_my_descriptor_dirty(const char *reason)
/** How frequently will we republish our descriptor because of large (factor
* of 2) shifts in estimated bandwidth? Note: We don't use this constant
* if our previous bandwidth estimate was exactly 0. */
#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. */