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[tor-commits] [tor/release-0.4.5] Make MinTimeToReportBandwidth a testing-only option (and rename it)
commit 9d7fca2306dc09097a24e225de59fb1ade7c9e34
Author: Nick Mathewson <nickm@xxxxxxxxxxxxxx>
Date: Tue May 11 15:49:00 2021 -0400
Make MinTimeToReportBandwidth a testing-only option (and rename it)
---
changes/ticket40337 | 5 +++--
doc/man/tor.1.txt | 12 +++++-------
src/app/config/config.c | 10 ++--------
src/app/config/config.h | 7 -------
src/app/config/or_options_st.h | 2 +-
src/app/config/testnet.inc | 2 +-
src/feature/stats/bwhist.c | 2 +-
7 files changed, 13 insertions(+), 27 deletions(-)
diff --git a/changes/ticket40337 b/changes/ticket40337
index f8f136a740..02ea29ffc1 100644
--- a/changes/ticket40337
+++ b/changes/ticket40337
@@ -1,5 +1,6 @@
- o Minor features (bandwidth reporting):
- - Relays can now use the MinTimeToReportBandwidth option to change
+ o Minor features (testing):
+ - On a testing network, relays can now use the
+ TestingMinTimeToReportBandwidth option to change
the smallest amount of time over which they're willing to report
their observed maximum bandwidth. Previously, this was fixed
at 1 day. For safety, values under 2 hours are only supported on
diff --git a/doc/man/tor.1.txt b/doc/man/tor.1.txt
index af4ee494ef..209900832f 100644
--- a/doc/man/tor.1.txt
+++ b/doc/man/tor.1.txt
@@ -2448,13 +2448,6 @@ is non-zero):
If we have more onionskins queued for processing than we can process in
this amount of time, reject new ones. (Default: 1750 msec)
-[[MinTimeToReportBandwidth]] **MinTimeToReportBandwidth** __N__ **seconds**|**minutes**|**hours**::
- Do not report our measurements for our maximum observed bandwidth for any
- time period that has lasted for less than this amount of time.
- Setting this option too low can enable traffic analysis, and is
- not permitted except on testing networks. Values over 1 day have
- no effect. (Default: 1 day)
-
[[MyFamily]] **MyFamily** __fingerprint__,__fingerprint__,...::
Declare that this Tor relay is controlled or administered by a group or
organization identical or similar to that of the other relays, defined by
@@ -3602,6 +3595,11 @@ The following options are used for running a testing Tor network.
Minimum value for the Fast flag. Overrides the ordinary minimum taken
from the consensus when TestingTorNetwork is set. (Default: 0.)
+[[TestingMinTimeToReportBandwidth]] **TestingMinTimeToReportBandwidth** __N__ **seconds**|**minutes**|**hours**::
+ Do not report our measurements for our maximum observed bandwidth for any
+ time period that has lasted for less than this amount of time.
+ Values over 1 day have no effect. (Default: 1 day)
+
[[TestingServerConsensusDownloadInitialDelay]] **TestingServerConsensusDownloadInitialDelay** __N__::
Initial delay in seconds for when servers should download consensuses. Changing this
requires that **TestingTorNetwork** is set. (Default: 0)
diff --git a/src/app/config/config.c b/src/app/config/config.c
index 9011f36735..88da7a0aa7 100644
--- a/src/app/config/config.c
+++ b/src/app/config/config.c
@@ -563,7 +563,7 @@ static const config_var_t option_vars_[] = {
V(MaxUnparseableDescSizeToLog, MEMUNIT, "10 MB"),
VPORT(MetricsPort),
V(MetricsPortPolicy, LINELIST, NULL),
- V(MinTimeToReportBandwidth, INTERVAL, "1 day"),
+ V(TestingMinTimeToReportBandwidth, INTERVAL, "1 day"),
VAR("MyFamily", LINELIST, MyFamily_lines, NULL),
V(NewCircuitPeriod, INTERVAL, "30 seconds"),
OBSOLETE("NamingAuthoritativeDirectory"),
@@ -3712,13 +3712,6 @@ options_validate_cb(const void *old_options_, void *options_, char **msg)
options->HeartbeatPeriod = MIN_HEARTBEAT_PERIOD;
}
- if (options->MinTimeToReportBandwidth < MIN_MIN_TIME_TO_REPORT_BW &&
- !options->TestingTorNetwork) {
- log_warn(LD_CONFIG, "MinTimeToReportBandwidth is too short; "
- "raising to %d seconds.", MIN_MIN_TIME_TO_REPORT_BW);
- options->MinTimeToReportBandwidth = MIN_MIN_TIME_TO_REPORT_BW;
- }
-
if (options->KeepalivePeriod < 1)
REJECT("KeepalivePeriod option must be positive.");
@@ -3994,6 +3987,7 @@ options_validate_cb(const void *old_options_, void *options_, char **msg)
CHECK_DEFAULT(TestingSigningKeySlop);
CHECK_DEFAULT(TestingAuthKeySlop);
CHECK_DEFAULT(TestingLinkKeySlop);
+ CHECK_DEFAULT(TestingMinTimeToReportBandwidth);
or_options_free(dflt_options);
}
#undef CHECK_DEFAULT
diff --git a/src/app/config/config.h b/src/app/config/config.h
index 74e6942eb5..e95ef4a728 100644
--- a/src/app/config/config.h
+++ b/src/app/config/config.h
@@ -24,13 +24,6 @@
* expose more information than we're comfortable with. */
#define MIN_HEARTBEAT_PERIOD (30*60)
-/**
- * Lowest allowable value for MinTimeToReportBandwidth on a non-testing
- * network; if this is too low we might report detail that is too
- * fine-grained.
- **/
-#define MIN_MIN_TIME_TO_REPORT_BW (2*60*60)
-
/** Maximum default value for MaxMemInQueues, in bytes. */
#if SIZEOF_VOID_P >= 8
#define MAX_DEFAULT_MEMORY_QUEUE_SIZE (UINT64_C(8) << 30)
diff --git a/src/app/config/or_options_st.h b/src/app/config/or_options_st.h
index efecc85d66..440c987365 100644
--- a/src/app/config/or_options_st.h
+++ b/src/app/config/or_options_st.h
@@ -1084,7 +1084,7 @@ struct or_options_t {
/** How far must we be into the current bandwidth-measurement period to
* report bandwidth observations from this period? */
- int MinTimeToReportBandwidth;
+ int TestingMinTimeToReportBandwidth;
/**
* Configuration objects for individual modules.
diff --git a/src/app/config/testnet.inc b/src/app/config/testnet.inc
index 527e0d00b1..039454a0d0 100644
--- a/src/app/config/testnet.inc
+++ b/src/app/config/testnet.inc
@@ -19,7 +19,7 @@
{ "TestingV3AuthInitialDistDelay", "20 seconds" },
{ "TestingAuthDirTimeToLearnReachability", "0 minutes" },
{ "MinUptimeHidServDirectoryV2", "0 minutes" },
-{ "MinTimeToReportBandwidth", "0 seconds" },
+{ "TestingMinTimeToReportBandwidth", "0 seconds" },
{ "TestingServerDownloadInitialDelay", "0" },
{ "TestingClientDownloadInitialDelay", "0" },
{ "TestingServerConsensusDownloadInitialDelay", "0" },
diff --git a/src/feature/stats/bwhist.c b/src/feature/stats/bwhist.c
index 55a8f7c747..06ad48e5c3 100644
--- a/src/feature/stats/bwhist.c
+++ b/src/feature/stats/bwhist.c
@@ -241,7 +241,7 @@ MOCK_IMPL(int,
bwhist_bandwidth_assess,(void))
{
uint64_t w,r;
- int min_obs_time = get_options()->MinTimeToReportBandwidth;
+ int min_obs_time = get_options()->TestingMinTimeToReportBandwidth;
r = find_largest_max(read_array, min_obs_time);
w = find_largest_max(write_array, min_obs_time);
if (r>w)
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