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-rw-r--r--src/or/hs_common.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/src/or/hs_common.c b/src/or/hs_common.c
index 0d81063cf7..0ae196d93e 100644
--- a/src/or/hs_common.c
+++ b/src/or/hs_common.c
@@ -196,13 +196,18 @@ uint64_t
hs_get_time_period_num(time_t now)
{
uint64_t time_period_num;
+
+ /* Start by calculating minutes since the epoch */
uint64_t time_period_length = get_time_period_length();
uint64_t minutes_since_epoch = now / 60;
- /* Now subtract half a day to fit the prop224 time period schedule (see
- * section [TIME-PERIODS]). */
- tor_assert(minutes_since_epoch > HS_TIME_PERIOD_ROTATION_OFFSET);
- minutes_since_epoch -= HS_TIME_PERIOD_ROTATION_OFFSET;
+ /* Apply the rotation offset as specified by prop224 (section
+ * [TIME-PERIODS]), so that new time periods synchronize nicely with SRV
+ * publication */
+ unsigned int time_period_rotation_offset = sr_state_get_phase_duration();
+ time_period_rotation_offset /= 60; /* go from seconds to minutes */
+ tor_assert(minutes_since_epoch > time_period_rotation_offset);
+ minutes_since_epoch -= time_period_rotation_offset;
/* Calculate the time period */
time_period_num = minutes_since_epoch / time_period_length;